diff --git a/.gitignore b/.gitignore
index fd3a355..c47e86a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -37,6 +37,7 @@ modules.builtin
 Module.symvers
 *.dwo
 *.su
+*.c.[012]*.*
 
 #
 # Top-level generic files
diff --git a/Documentation/dontdiff b/Documentation/dontdiff
index 8ea834f..1462492 100644
--- a/Documentation/dontdiff
+++ b/Documentation/dontdiff
@@ -3,9 +3,11 @@
 *.bc
 *.bin
 *.bz2
+*.c.[012]*.*
 *.cis
 *.cpio
 *.csp
+*.dbg
 *.dsp
 *.dvi
 *.elf
@@ -15,6 +17,7 @@
 *.gcov
 *.gen.S
 *.gif
+*.gmo
 *.grep
 *.grp
 *.gz
@@ -51,14 +54,17 @@
 *.tab.h
 *.tex
 *.ver
+*.vim
 *.xml
 *.xz
 *_MODULES
+*_reg_safe.h
 *_vga16.c
 *~
 \#*#
 *.9
-.*
+.[^g]*
+.gen*
 .*.d
 .mm
 53c700_d.h
@@ -72,9 +78,11 @@ Image
 Module.markers
 Module.symvers
 PENDING
+PERF*
 SCCS
 System.map*
 TAGS
+TRACEEVENT-CFLAGS
 aconf
 af_names.h
 aic7*reg.h*
@@ -83,6 +91,7 @@ aic7*seq.h*
 aicasm
 aicdb.h*
 altivec*.c
+ashldi3.S
 asm-offsets.h
 asm_offsets.h
 autoconf.h*
@@ -95,32 +104,40 @@ bounds.h
 bsetup
 btfixupprep
 build
+builtin-policy.h
 bvmlinux
 bzImage*
 capability_names.h
 capflags.c
 classlist.h*
+clut_vga16.c
+common-cmds.h
 comp*.log
 compile.h*
 conf
 config
 config-*
 config_data.h*
+config.c
 config.mak
 config.mak.autogen
+config.tmp
 conmakehash
 consolemap_deftbl.c*
 cpustr.h
 crc32table.h*
 cscope.*
 defkeymap.c
+devicetable-offsets.h
 devlist.h*
 dnotify_test
 docproc
 dslm
+dtc-lexer.lex.c
 elf2ecoff
 elfconfig.h*
 evergreen_reg_safe.h
+exception_policy.conf
 fixdep
 flask.h
 fore200e_mkfirm
@@ -128,12 +145,15 @@ fore200e_pca_fw.c*
 gconf
 gconf.glade.h
 gen-devlist
+gen-kdb_cmds.c
 gen_crc32table
 gen_init_cpio
 generated
 genheaders
 genksyms
 *_gray256.c
+hash
+hid-example
 hpet_example
 hugepage-mmap
 hugepage-shm
@@ -148,14 +168,14 @@ int32.c
 int4.c
 int8.c
 kallsyms
-kconfig
+kern_constants.h
 keywords.c
 ksym.c*
 ksym.h*
 kxgettext
 lex.c
 lex.*.c
-linux
+lib1funcs.S
 logo_*.c
 logo_*_clut224.c
 logo_*_mono.c
@@ -166,12 +186,14 @@ machtypes.h
 map
 map_hugetlb
 mconf
+mdp
 miboot*
 mk_elfconfig
 mkboot
 mkbugboot
 mkcpustr
 mkdep
+mkpiggy
 mkprep
 mkregtable
 mktables
@@ -187,6 +209,8 @@ oui.c*
 page-types
 parse.c
 parse.h
+parse-events*
+pasyms.h
 patches*
 pca200e.bin
 pca200e_ecd.bin2
@@ -196,6 +220,7 @@ perf-archive
 piggyback
 piggy.gzip
 piggy.S
+pmu-*
 pnmtologo
 ppc_defs.h*
 pss_boot.h
@@ -205,7 +230,12 @@ r200_reg_safe.h
 r300_reg_safe.h
 r420_reg_safe.h
 r600_reg_safe.h
+randomize_layout_hash.h
+randomize_layout_seed.h
+realmode.lds
+realmode.relocs
 recordmcount
+regdb.c
 relocs
 rlim_names.h
 rn50_reg_safe.h
@@ -215,8 +245,12 @@ series
 setup
 setup.bin
 setup.elf
+signing_key*
+size_overflow_hash.h
 sImage
+slabinfo
 sm_tbl*
+sortextable
 split-include
 syscalltab.h
 tables.c
@@ -226,6 +260,7 @@ tftpboot.img
 timeconst.h
 times.h*
 trix_boot.h
+user_constants.h
 utsrelease.h*
 vdso-syms.lds
 vdso.lds
@@ -237,13 +272,17 @@ vdso32.lds
 vdso32.so.dbg
 vdso64.lds
 vdso64.so.dbg
+vdsox32.lds
+vdsox32-syms.lds
 version.h*
 vmImage
 vmlinux
 vmlinux-*
 vmlinux.aout
 vmlinux.bin.all
+vmlinux.bin.bz2
 vmlinux.lds
+vmlinux.relocs
 vmlinuz
 voffset.h
 vsyscall.lds
@@ -251,9 +290,12 @@ vsyscall_32.lds
 wanxlfw.inc
 uImage
 unifdef
+utsrelease.h
 wakeup.bin
 wakeup.elf
 wakeup.lds
+x509*
 zImage*
 zconf.hash.c
+zconf.lex.c
 zoffset.h
diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
index 13f888a..250729b 100644
--- a/Documentation/kbuild/makefiles.txt
+++ b/Documentation/kbuild/makefiles.txt
@@ -23,10 +23,11 @@ This document describes the Linux kernel Makefiles.
 	=== 4 Host Program support
 	   --- 4.1 Simple Host Program
 	   --- 4.2 Composite Host Programs
-	   --- 4.3 Using C++ for host programs
-	   --- 4.4 Controlling compiler options for host programs
-	   --- 4.5 When host programs are actually built
-	   --- 4.6 Using hostprogs-$(CONFIG_FOO)
+	   --- 4.3 Defining shared libraries
+	   --- 4.4 Using C++ for host programs
+	   --- 4.5 Controlling compiler options for host programs
+	   --- 4.6 When host programs are actually built
+	   --- 4.7 Using hostprogs-$(CONFIG_FOO)
 
 	=== 5 Kbuild clean infrastructure
 
@@ -643,7 +644,29 @@ Both possibilities are described in the following.
 	Finally, the two .o files are linked to the executable, lxdialog.
 	Note: The syntax <executable>-y is not permitted for host-programs.
 
---- 4.3 Using C++ for host programs
+--- 4.3 Defining shared libraries
+
+	Objects with extension .so are considered shared libraries, and
+	will be compiled as position independent objects.
+	Kbuild provides support for shared libraries, but the usage
+	shall be restricted.
+	In the following example the libkconfig.so shared library is used
+	to link the executable conf.
+
+	Example:
+		#scripts/kconfig/Makefile
+		hostprogs-y     := conf
+		conf-objs       := conf.o libkconfig.so
+		libkconfig-objs := expr.o type.o
+
+	Shared libraries always require a corresponding -objs line, and
+	in the example above the shared library libkconfig is composed by
+	the two objects expr.o and type.o.
+	expr.o and type.o will be built as position independent code and
+	linked as a shared library libkconfig.so. C++ is not supported for
+	shared libraries.
+
+--- 4.4 Using C++ for host programs
 
 	kbuild offers support for host programs written in C++. This was
 	introduced solely to support kconfig, and is not recommended
@@ -666,7 +689,7 @@ Both possibilities are described in the following.
 		qconf-cxxobjs := qconf.o
 		qconf-objs    := check.o
 
---- 4.4 Controlling compiler options for host programs
+--- 4.5 Controlling compiler options for host programs
 
 	When compiling host programs, it is possible to set specific flags.
 	The programs will always be compiled utilising $(HOSTCC) passed
@@ -694,7 +717,7 @@ Both possibilities are described in the following.
 	When linking qconf, it will be passed the extra option
 	"-L$(QTDIR)/lib".
 
---- 4.5 When host programs are actually built
+--- 4.6 When host programs are actually built
 
 	Kbuild will only build host-programs when they are referenced
 	as a prerequisite.
@@ -725,7 +748,7 @@ Both possibilities are described in the following.
 	This will tell kbuild to build lxdialog even if not referenced in
 	any rule.
 
---- 4.6 Using hostprogs-$(CONFIG_FOO)
+--- 4.7 Using hostprogs-$(CONFIG_FOO)
 
 	A typical pattern in a Kbuild file looks like this:
 
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 0b3de80..550d8e8 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1320,6 +1320,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			[KNL] Should the hard-lockup detector generate
 			backtraces on all cpus.
 			Format: <integer>
+	grsec_proc_gid= [GRKERNSEC_PROC_USERGROUP] Chooses GID to
+			ignore grsecurity's /proc restrictions
+
+	grsec_sysfs_restrict= Format: 0 | 1
+			Default: 1
+			Disables GRKERNSEC_SYSFS_RESTRICT if enabled in config
 
 	hashdist=	[KNL,NUMA] Large hashes allocated during boot
 			are distributed across NUMA nodes.  Defaults on
@@ -2515,6 +2521,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			noexec=on: enable non-executable mappings (default)
 			noexec=off: disable non-executable mappings
 
+	nopcid		[X86-64]
+			Disable PCID (Process-Context IDentifier) even if it
+			is supported by the processor.
+
 	nosmap		[X86]
 			Disable SMAP (Supervisor Mode Access Prevention)
 			even if it is supported by processor.
@@ -2818,6 +2828,35 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			the specified number of seconds.  This is to be used if
 			your oopses keep scrolling off the screen.
 
+	pax_nouderef	[X86] disables UDEREF.  Most likely needed under certain
+			virtualization environments that don't cope well with the
+			expand down segment used by UDEREF on X86-32 or the frequent
+			page table updates on X86-64.
+
+	pax_sanitize_slab=
+			Format: { 0 | 1 | off | fast | full }
+			Options '0' and '1' are only provided for backward
+			compatibility, 'off' or 'fast' should be used instead.
+			0|off : disable slab object sanitization
+			1|fast: enable slab object sanitization excluding
+				whitelisted slabs (default)
+			full  : sanitize all slabs, even the whitelisted ones
+
+	pax_softmode=	0/1 to disable/enable PaX softmode on boot already.
+
+	pax_extra_latent_entropy
+			Enable a very simple form of latent entropy extraction
+			from the first 4GB of memory as the bootmem allocator
+			passes the memory pages to the buddy allocator.
+
+	pax_size_overflow_report_only
+			Enables rate-limited logging of size_overflow plugin
+			violations while disabling killing of the violating
+			task.
+
+	pax_weakuderef	[X86-64] enables the weaker but faster form of UDEREF
+			when the processor supports PCID.
+
 	pcbit=		[HW,ISDN]
 
 	pcd.		[PARIDE]
diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt
index fcddfd5..71afd6b 100644
--- a/Documentation/sysctl/kernel.txt
+++ b/Documentation/sysctl/kernel.txt
@@ -42,6 +42,7 @@ show up in /proc/sys/kernel:
 - kptr_restrict
 - kstack_depth_to_print       [ X86 only ]
 - l2cr                        [ PPC only ]
+- modify_ldt                  [ X86 only ]
 - modprobe                    ==> Documentation/debugging-modules.txt
 - modules_disabled
 - msg_next_id		      [ sysv ipc ]
@@ -406,6 +407,20 @@ This flag controls the L2 cache of G3 processor boards. If
 
 ==============================================================
 
+modify_ldt: (X86 only)
+
+Enables (1) or disables (0) the modify_ldt syscall. Modifying the LDT
+(Local Descriptor Table) may be needed to run a 16-bit or segmented code
+such as Dosemu or Wine. This is done via a system call which is not needed
+to run portable applications, and which can sometimes be abused to exploit
+some weaknesses of the architecture, opening new vulnerabilities.
+
+This sysctl allows one to increase the system's security by disabling the
+system call, or to restore compatibility with specific applications when it
+was already disabled.
+
+==============================================================
+
 modules_disabled:
 
 A toggle value indicating if modules are allowed to be loaded
diff --git a/Makefile b/Makefile
index c62b531..e158b54 100644
--- a/Makefile
+++ b/Makefile
@@ -298,7 +298,9 @@ CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
 HOSTCC       = gcc
 HOSTCXX      = g++
 HOSTCFLAGS   = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer -std=gnu89
-HOSTCXXFLAGS = -O2
+HOSTCFLAGS   = -W -Wno-unused-parameter -Wno-missing-field-initializers -fno-delete-null-pointer-checks
+HOSTCFLAGS  += $(call cc-option, -Wno-empty-body)
+HOSTCXXFLAGS = -O2 -Wall -W -Wno-array-bounds
 
 ifeq ($(shell $(HOSTCC) -v 2>&1 | grep -c "clang version"), 1)
 HOSTCFLAGS  += -Wno-unused-value -Wno-unused-parameter \
@@ -548,7 +550,7 @@ ifeq ($(KBUILD_EXTMOD),)
 # in parallel
 PHONY += scripts
 scripts: scripts_basic include/config/auto.conf include/config/tristate.conf \
-	 asm-generic
+	 asm-generic gcc-plugins
 	$(Q)$(MAKE) $(build)=$(@)
 
 # Objects we will link into vmlinux / subdirs we need to visit
@@ -623,6 +625,8 @@ endif
 # Tell gcc to never replace conditional load with a non-conditional one
 KBUILD_CFLAGS	+= $(call cc-option,--param=allow-store-data-races=0)
 
+include scripts/Makefile.gcc-plugins
+
 ifdef CONFIG_READABLE_ASM
 # Disable optimizations that make assembler listings hard to read.
 # reorder blocks reorders the control in the function
@@ -724,7 +728,7 @@ KBUILD_CFLAGS   += $(call cc-option, -gsplit-dwarf, -g)
 else
 KBUILD_CFLAGS	+= -g
 endif
-KBUILD_AFLAGS	+= -Wa,-gdwarf-2
+KBUILD_AFLAGS	+= -Wa,--gdwarf-2
 endif
 ifdef CONFIG_DEBUG_INFO_DWARF4
 KBUILD_CFLAGS	+= $(call cc-option, -gdwarf-4,)
@@ -899,7 +903,7 @@ export mod_sign_cmd
 
 
 ifeq ($(KBUILD_EXTMOD),)
-core-y		+= kernel/ certs/ mm/ fs/ ipc/ security/ crypto/ block/
+core-y		+= kernel/ certs/ mm/ fs/ ipc/ security/ crypto/ block/ grsecurity/
 
 vmlinux-dirs	:= $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \
 		     $(core-y) $(core-m) $(drivers-y) $(drivers-m) \
@@ -1002,7 +1006,7 @@ prepare1: prepare2 $(version_h) include/generated/utsrelease.h \
 
 archprepare: archheaders archscripts prepare1 scripts_basic
 
-prepare0: archprepare FORCE
+prepare0: archprepare gcc-plugins FORCE
 	$(Q)$(MAKE) $(build)=.
 
 # All the preparing..
@@ -1220,7 +1224,11 @@ MRPROPER_FILES += .config .config.old .version .old_version \
 		  Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
 		  signing_key.pem signing_key.priv signing_key.x509	\
 		  x509.genkey extra_certificates signing_key.x509.keyid	\
-		  signing_key.x509.signer vmlinux-gdb.py
+		  signing_key.x509.signer vmlinux-gdb.py \
+		  tools/gcc/size_overflow_plugin/size_overflow_hash_aux.h \
+		  tools/gcc/size_overflow_plugin/size_overflow_hash.h \
+		  tools/gcc/size_overflow_plugin/disable_size_overflow_hash.h \
+		  tools/gcc/randomize_layout_seed.h
 
 # clean - Delete most, but leave enough to build external modules
 #
@@ -1259,7 +1267,7 @@ distclean: mrproper
 	@find $(srctree) $(RCS_FIND_IGNORE) \
 		\( -name '*.orig' -o -name '*.rej' -o -name '*~' \
 		-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
-		-o -name '.*.rej' -o -name '*%'  -o -name 'core' \) \
+		-o -name '.*.rej' -o -name '*.so' -o -name '*%' -o -name 'core' \) \
 		-type f -print | xargs rm -f
 
 
@@ -1480,6 +1488,7 @@ clean: $(clean-dirs)
 		-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
 		-o -name '*.symtypes' -o -name 'modules.order' \
 		-o -name modules.builtin -o -name '.tmp_*.o.*' \
+		-o -name '*.c.[012]*.*' \
 		-o -name '*.gcno' \) -type f -print | xargs rm -f
 
 # Generate tags for editors
diff --git a/arch/Kconfig b/arch/Kconfig
index 81869a5..b10fc6c 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -353,6 +353,20 @@ config SECCOMP_FILTER
 
 	  See Documentation/prctl/seccomp_filter.txt for details.
 
+config HAVE_GCC_PLUGINS
+	bool
+	help
+	  An arch should select this symbol if it supports building with
+	  GCC plugins.
+
+menuconfig GCC_PLUGINS
+	bool "GCC plugins"
+	depends on HAVE_GCC_PLUGINS
+	default y
+	help
+	  GCC plugins are loadable modules that provide extra features to the
+	  compiler. They are useful for runtime instrumentation and static analysis.
+
 config HAVE_CC_STACKPROTECTOR
 	bool
 	help
diff --git a/arch/alpha/include/asm/atomic.h b/arch/alpha/include/asm/atomic.h
index 572b228..e03acdd 100644
--- a/arch/alpha/include/asm/atomic.h
+++ b/arch/alpha/include/asm/atomic.h
@@ -251,4 +251,14 @@ static inline long atomic64_dec_if_positive(atomic64_t *v)
 #define atomic_dec(v) atomic_sub(1,(v))
 #define atomic64_dec(v) atomic64_sub(1,(v))
 
+#define atomic64_read_unchecked(v)		atomic64_read(v)
+#define atomic64_set_unchecked(v, i)		atomic64_set((v), (i))
+#define atomic64_add_unchecked(a, v)		atomic64_add((a), (v))
+#define atomic64_add_return_unchecked(a, v)	atomic64_add_return((a), (v))
+#define atomic64_sub_unchecked(a, v)		atomic64_sub((a), (v))
+#define atomic64_inc_unchecked(v)		atomic64_inc(v)
+#define atomic64_inc_return_unchecked(v)	atomic64_inc_return(v)
+#define atomic64_dec_unchecked(v)		atomic64_dec(v)
+#define atomic64_cmpxchg_unchecked(v, o, n)	atomic64_cmpxchg((v), (o), (n))
+
 #endif /* _ALPHA_ATOMIC_H */
diff --git a/arch/alpha/include/asm/cache.h b/arch/alpha/include/asm/cache.h
index ad368a9..fbe0f25 100644
--- a/arch/alpha/include/asm/cache.h
+++ b/arch/alpha/include/asm/cache.h
@@ -4,19 +4,19 @@
 #ifndef __ARCH_ALPHA_CACHE_H
 #define __ARCH_ALPHA_CACHE_H
 
+#include <linux/const.h>
 
 /* Bytes per L1 (data) cache line. */
 #if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_EV6)
-# define L1_CACHE_BYTES     64
 # define L1_CACHE_SHIFT     6
 #else
 /* Both EV4 and EV5 are write-through, read-allocate,
    direct-mapped, physical.
 */
-# define L1_CACHE_BYTES     32
 # define L1_CACHE_SHIFT     5
 #endif
 
+#define L1_CACHE_BYTES     (_AC(1,UL) << L1_CACHE_SHIFT)
 #define SMP_CACHE_BYTES    L1_CACHE_BYTES
 
 #endif
diff --git a/arch/alpha/include/asm/elf.h b/arch/alpha/include/asm/elf.h
index 968d999..d36b2df 100644
--- a/arch/alpha/include/asm/elf.h
+++ b/arch/alpha/include/asm/elf.h
@@ -91,6 +91,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
 
 #define ELF_ET_DYN_BASE		(TASK_UNMAPPED_BASE + 0x1000000)
 
+#ifdef CONFIG_PAX_ASLR
+#define PAX_ELF_ET_DYN_BASE	(current->personality & ADDR_LIMIT_32BIT ? 0x10000 : 0x120000000UL)
+
+#define PAX_DELTA_MMAP_LEN	(current->personality & ADDR_LIMIT_32BIT ? 14 : 28)
+#define PAX_DELTA_STACK_LEN	(current->personality & ADDR_LIMIT_32BIT ? 14 : 19)
+#endif
+
 /* $0 is set by ld.so to a pointer to a function which might be 
    registered using atexit.  This provides a mean for the dynamic
    linker to call DT_FINI functions for shared libraries that have
diff --git a/arch/alpha/include/asm/pgalloc.h b/arch/alpha/include/asm/pgalloc.h
index aab14a0..b4fa3e7 100644
--- a/arch/alpha/include/asm/pgalloc.h
+++ b/arch/alpha/include/asm/pgalloc.h
@@ -29,6 +29,12 @@ pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
 	pgd_set(pgd, pmd);
 }
 
+static inline void
+pgd_populate_kernel(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
+{
+	pgd_populate(mm, pgd, pmd);
+}
+
 extern pgd_t *pgd_alloc(struct mm_struct *mm);
 
 static inline void
diff --git a/arch/alpha/include/asm/pgtable.h b/arch/alpha/include/asm/pgtable.h
index a9a1195..e9b8417 100644
--- a/arch/alpha/include/asm/pgtable.h
+++ b/arch/alpha/include/asm/pgtable.h
@@ -101,6 +101,17 @@ struct vm_area_struct;
 #define PAGE_SHARED	__pgprot(_PAGE_VALID | __ACCESS_BITS)
 #define PAGE_COPY	__pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW)
 #define PAGE_READONLY	__pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW)
+
+#ifdef CONFIG_PAX_PAGEEXEC
+# define PAGE_SHARED_NOEXEC	__pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOE)
+# define PAGE_COPY_NOEXEC	__pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW | _PAGE_FOE)
+# define PAGE_READONLY_NOEXEC	__pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW | _PAGE_FOE)
+#else
+# define PAGE_SHARED_NOEXEC	PAGE_SHARED
+# define PAGE_COPY_NOEXEC	PAGE_COPY
+# define PAGE_READONLY_NOEXEC	PAGE_READONLY
+#endif
+
 #define PAGE_KERNEL	__pgprot(_PAGE_VALID | _PAGE_ASM | _PAGE_KRE | _PAGE_KWE)
 
 #define _PAGE_NORMAL(x) __pgprot(_PAGE_VALID | __ACCESS_BITS | (x))
diff --git a/arch/alpha/kernel/module.c b/arch/alpha/kernel/module.c
index 936bc8f..bb1859f 100644
--- a/arch/alpha/kernel/module.c
+++ b/arch/alpha/kernel/module.c
@@ -160,7 +160,7 @@ apply_relocate_add(Elf64_Shdr *sechdrs, const char *strtab,
 
 	/* The small sections were sorted to the end of the segment.
 	   The following should definitely cover them.  */
-	gp = (u64)me->core_layout.base + me->core_layout.size - 0x8000;
+	gp = (u64)me->core_layout.base_rw + me->core_layout.size_rw - 0x8000;
 	got = sechdrs[me->arch.gotsecindex].sh_addr;
 
 	for (i = 0; i < n; i++) {
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 6cc0816..3dd424d 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -1300,10 +1300,11 @@ SYSCALL_DEFINE1(old_adjtimex, struct timex32 __user *, txc_p)
    generic version except that we know how to honor ADDR_LIMIT_32BIT.  */
 
 static unsigned long
-arch_get_unmapped_area_1(unsigned long addr, unsigned long len,
-		         unsigned long limit)
+arch_get_unmapped_area_1(struct file *filp, unsigned long addr, unsigned long len,
+		         unsigned long limit, unsigned long flags)
 {
 	struct vm_unmapped_area_info info;
+	unsigned long offset = gr_rand_threadstack_offset(current->mm, filp, flags);
 
 	info.flags = 0;
 	info.length = len;
@@ -1311,6 +1312,7 @@ arch_get_unmapped_area_1(unsigned long addr, unsigned long len,
 	info.high_limit = limit;
 	info.align_mask = 0;
 	info.align_offset = 0;
+	info.threadstack_offset = offset;
 	return vm_unmapped_area(&info);
 }
 
@@ -1343,20 +1345,24 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	   merely specific addresses, but regions of memory -- perhaps
 	   this feature should be incorporated into all ports?  */
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(current->mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (addr) {
-		addr = arch_get_unmapped_area_1 (PAGE_ALIGN(addr), len, limit);
+		addr = arch_get_unmapped_area_1 (filp, PAGE_ALIGN(addr), len, limit, flags);
 		if (addr != (unsigned long) -ENOMEM)
 			return addr;
 	}
 
 	/* Next, try allocating at TASK_UNMAPPED_BASE.  */
-	addr = arch_get_unmapped_area_1 (PAGE_ALIGN(TASK_UNMAPPED_BASE),
-					 len, limit);
+	addr = arch_get_unmapped_area_1 (filp, PAGE_ALIGN(current->mm->mmap_base), len, limit, flags);
+
 	if (addr != (unsigned long) -ENOMEM)
 		return addr;
 
 	/* Finally, try allocating in low memory.  */
-	addr = arch_get_unmapped_area_1 (PAGE_SIZE, len, limit);
+	addr = arch_get_unmapped_area_1 (filp, PAGE_SIZE, len, limit, flags);
 
 	return addr;
 }
diff --git a/arch/alpha/mm/fault.c b/arch/alpha/mm/fault.c
index 4a905bd..0a4da53 100644
--- a/arch/alpha/mm/fault.c
+++ b/arch/alpha/mm/fault.c
@@ -52,6 +52,124 @@ __load_new_mm_context(struct mm_struct *next_mm)
 	__reload_thread(pcb);
 }
 
+#ifdef CONFIG_PAX_PAGEEXEC
+/*
+ * PaX: decide what to do with offenders (regs->pc = fault address)
+ *
+ * returns 1 when task should be killed
+ *         2 when patched PLT trampoline was detected
+ *         3 when unpatched PLT trampoline was detected
+ */
+static int pax_handle_fetch_fault(struct pt_regs *regs)
+{
+
+#ifdef CONFIG_PAX_EMUPLT
+	int err;
+
+	do { /* PaX: patched PLT emulation #1 */
+		unsigned int ldah, ldq, jmp;
+
+		err = get_user(ldah, (unsigned int *)regs->pc);
+		err |= get_user(ldq, (unsigned int *)(regs->pc+4));
+		err |= get_user(jmp, (unsigned int *)(regs->pc+8));
+
+		if (err)
+			break;
+
+		if ((ldah & 0xFFFF0000U) == 0x277B0000U &&
+		    (ldq & 0xFFFF0000U) == 0xA77B0000U &&
+		    jmp == 0x6BFB0000U)
+		{
+			unsigned long r27, addr;
+			unsigned long addrh = (ldah | 0xFFFFFFFFFFFF0000UL) << 16;
+			unsigned long addrl = ldq | 0xFFFFFFFFFFFF0000UL;
+
+			addr = regs->r27 + ((addrh ^ 0x80000000UL) + 0x80000000UL) + ((addrl ^ 0x8000UL) + 0x8000UL);
+			err = get_user(r27, (unsigned long *)addr);
+			if (err)
+				break;
+
+			regs->r27 = r27;
+			regs->pc = r27;
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: patched PLT emulation #2 */
+		unsigned int ldah, lda, br;
+
+		err = get_user(ldah, (unsigned int *)regs->pc);
+		err |= get_user(lda, (unsigned int *)(regs->pc+4));
+		err |= get_user(br, (unsigned int *)(regs->pc+8));
+
+		if (err)
+			break;
+
+		if ((ldah & 0xFFFF0000U) == 0x277B0000U &&
+		    (lda & 0xFFFF0000U) == 0xA77B0000U &&
+		    (br & 0xFFE00000U) == 0xC3E00000U)
+		{
+			unsigned long addr = br | 0xFFFFFFFFFFE00000UL;
+			unsigned long addrh = (ldah | 0xFFFFFFFFFFFF0000UL) << 16;
+			unsigned long addrl = lda | 0xFFFFFFFFFFFF0000UL;
+
+			regs->r27 += ((addrh ^ 0x80000000UL) + 0x80000000UL) + ((addrl ^ 0x8000UL) + 0x8000UL);
+			regs->pc += 12 + (((addr ^ 0x00100000UL) + 0x00100000UL) << 2);
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: unpatched PLT emulation */
+		unsigned int br;
+
+		err = get_user(br, (unsigned int *)regs->pc);
+
+		if (!err && (br & 0xFFE00000U) == 0xC3800000U) {
+			unsigned int br2, ldq, nop, jmp;
+			unsigned long addr = br | 0xFFFFFFFFFFE00000UL, resolver;
+
+			addr = regs->pc + 4 + (((addr ^ 0x00100000UL) + 0x00100000UL) << 2);
+			err = get_user(br2, (unsigned int *)addr);
+			err |= get_user(ldq, (unsigned int *)(addr+4));
+			err |= get_user(nop, (unsigned int *)(addr+8));
+			err |= get_user(jmp, (unsigned int *)(addr+12));
+			err |= get_user(resolver, (unsigned long *)(addr+16));
+
+			if (err)
+				break;
+
+			if (br2 == 0xC3600000U &&
+			    ldq == 0xA77B000CU &&
+			    nop == 0x47FF041FU &&
+			    jmp == 0x6B7B0000U)
+			{
+				regs->r28 = regs->pc+4;
+				regs->r27 = addr+16;
+				regs->pc = resolver;
+				return 3;
+			}
+		}
+	} while (0);
+#endif
+
+	return 1;
+}
+
+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
+{
+	unsigned long i;
+
+	printk(KERN_ERR "PAX: bytes at PC: ");
+	for (i = 0; i < 5; i++) {
+		unsigned int c;
+		if (get_user(c, (unsigned int *)pc+i))
+			printk(KERN_CONT "???????? ");
+		else
+			printk(KERN_CONT "%08x ", c);
+	}
+	printk("\n");
+}
+#endif
 
 /*
  * This routine handles page faults.  It determines the address,
@@ -132,8 +250,29 @@ retry:
  good_area:
 	si_code = SEGV_ACCERR;
 	if (cause < 0) {
-		if (!(vma->vm_flags & VM_EXEC))
+		if (!(vma->vm_flags & VM_EXEC)) {
+
+#ifdef CONFIG_PAX_PAGEEXEC
+			if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || address != regs->pc)
+				goto bad_area;
+
+			up_read(&mm->mmap_sem);
+			switch (pax_handle_fetch_fault(regs)) {
+
+#ifdef CONFIG_PAX_EMUPLT
+			case 2:
+			case 3:
+				return;
+#endif
+
+			}
+			pax_report_fault(regs, (void *)regs->pc, (void *)rdusp());
+			do_group_exit(SIGKILL);
+#else
 			goto bad_area;
+#endif
+
+		}
 	} else if (!cause) {
 		/* Allow reads even for write-only mappings */
 		if (!(vma->vm_flags & (VM_READ | VM_WRITE)))
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index a876743..fe2a193 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -549,6 +549,7 @@ config ARC_DBG_TLB_MISS_COUNT
 	bool "Profile TLB Misses"
 	default n
 	select DEBUG_FS
+	depends on !GRKERNSEC_KMEM
 	help
 	  Counts number of I and D TLB Misses and exports them via Debugfs
 	  The counters can be cleared via Debugfs as well
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index cdfa6c2..aba8354 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -53,6 +53,7 @@ config ARM
 	select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
 	select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
 	select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
+	select HAVE_GCC_PLUGINS
 	select HAVE_GENERIC_DMA_COHERENT
 	select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
 	select HAVE_IDE if PCI || ISA || PCMCIA
@@ -1629,6 +1630,7 @@ config HIGHPTE
 config CPU_SW_DOMAIN_PAN
 	bool "Enable use of CPU domains to implement privileged no-access"
 	depends on MMU && !ARM_LPAE
+	depends on !PAX_KERNEXEC && !PAX_MEMORY_UDEREF
 	default y
 	help
 	  Increase kernel security by ensuring that normal kernel accesses
@@ -1705,7 +1707,7 @@ config ALIGNMENT_TRAP
 
 config UACCESS_WITH_MEMCPY
 	bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
-	depends on MMU
+	depends on MMU && !PAX_MEMORY_UDEREF
 	default y if CPU_FEROCEON
 	help
 	  Implement faster copy_to_user and clear_user methods for CPU
@@ -1960,6 +1962,7 @@ config KEXEC
 	depends on (!SMP || PM_SLEEP_SMP)
 	depends on !CPU_V7M
 	select KEXEC_CORE
+	depends on !GRKERNSEC_KMEM
 	help
 	  kexec is a system call that implements the ability to shutdown your
 	  current kernel, and to start another kernel.  It is like a reboot
@@ -2004,7 +2007,7 @@ config EFI_STUB
 
 config EFI
 	bool "UEFI runtime support"
-	depends on OF && !CPU_BIG_ENDIAN && MMU && AUTO_ZRELADDR && !XIP_KERNEL
+	depends on OF && !CPU_BIG_ENDIAN && MMU && AUTO_ZRELADDR && !XIP_KERNEL && !PAX_KERNEXEC
 	select UCS2_STRING
 	select EFI_PARAMS_FROM_FDT
 	select EFI_STUB
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 1098e91..d6415c8 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -7,6 +7,7 @@ config ARM_PTDUMP
 	depends on DEBUG_KERNEL
 	depends on MMU
 	select DEBUG_FS
+	depends on !GRKERNSEC_KMEM
 	---help---
 	  Say Y here if you want to show the kernel pagetable layout in a
 	  debugfs file. This information is only useful for kernel developers
diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile
index d50430c..01cc53b 100644
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -103,6 +103,8 @@ ORIG_CFLAGS := $(KBUILD_CFLAGS)
 KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
 endif
 
+KBUILD_CFLAGS := $(filter-out $(GCC_PLUGINS_CFLAGS),$(KBUILD_CFLAGS))
+
 # -fstack-protector-strong triggers protection checks in this code,
 # but it is being used too early to link to meaningful stack_chk logic.
 nossp_flags := $(call cc-option, -fno-stack-protector)
diff --git a/arch/arm/include/asm/atomic.h b/arch/arm/include/asm/atomic.h
index 9e10c45..24a14ce 100644
--- a/arch/arm/include/asm/atomic.h
+++ b/arch/arm/include/asm/atomic.h
@@ -18,17 +18,41 @@
 #include <asm/barrier.h>
 #include <asm/cmpxchg.h>
 
+#ifdef CONFIG_GENERIC_ATOMIC64
+#include <asm-generic/atomic64.h>
+#endif
+
 #define ATOMIC_INIT(i)	{ (i) }
 
 #ifdef __KERNEL__
 
+#ifdef CONFIG_THUMB2_KERNEL
+#define REFCOUNT_TRAP_INSN "bkpt	0xf1"
+#else
+#define REFCOUNT_TRAP_INSN "bkpt	0xf103"
+#endif
+
+#define _ASM_EXTABLE(from, to)		\
+"	.pushsection __ex_table,\"a\"\n"\
+"	.align	3\n"			\
+"	.long	" #from ", " #to"\n"	\
+"	.popsection"
+
 /*
  * On ARM, ordinary assignment (str instruction) doesn't clear the local
  * strex/ldrex monitor on some implementations. The reason we can use it for
  * atomic_set() is the clrex or dummy strex done on every exception return.
  */
 #define atomic_read(v)	READ_ONCE((v)->counter)
+static inline int atomic_read_unchecked(const atomic_unchecked_t *v)
+{
+	return READ_ONCE(v->counter);
+}
 #define atomic_set(v,i)	WRITE_ONCE(((v)->counter), (i))
+static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i)
+{
+	WRITE_ONCE(v->counter, i);
+}
 
 #if __LINUX_ARM_ARCH__ >= 6
 
@@ -38,38 +62,64 @@
  * to ensure that the update happens.
  */
 
-#define ATOMIC_OP(op, c_op, asm_op)					\
-static inline void atomic_##op(int i, atomic_t *v)			\
+#ifdef CONFIG_PAX_REFCOUNT
+#define __OVERFLOW_POST			\
+	"	bvc	3f\n"		\
+	"2:	" REFCOUNT_TRAP_INSN "\n"\
+	"3:\n"
+#define __OVERFLOW_POST_RETURN		\
+	"	bvc	3f\n"		\
+"	mov	%0, %1\n"		\
+	"2:	" REFCOUNT_TRAP_INSN "\n"\
+	"3:\n"
+#define __OVERFLOW_EXTABLE		\
+	"4:\n"				\
+	_ASM_EXTABLE(2b, 4b)
+#else
+#define __OVERFLOW_POST
+#define __OVERFLOW_POST_RETURN
+#define __OVERFLOW_EXTABLE
+#endif
+
+#define __ATOMIC_OP(op, suffix, c_op, asm_op, post_op, extable)		\
+static inline void atomic_##op##suffix(int i, atomic##suffix##_t *v)	\
 {									\
 	unsigned long tmp;						\
 	int result;							\
 									\
 	prefetchw(&v->counter);						\
-	__asm__ __volatile__("@ atomic_" #op "\n"			\
+	__asm__ __volatile__("@ atomic_" #op #suffix "\n"		\
 "1:	ldrex	%0, [%3]\n"						\
 "	" #asm_op "	%0, %0, %4\n"					\
+	post_op								\
 "	strex	%1, %0, [%3]\n"						\
 "	teq	%1, #0\n"						\
-"	bne	1b"							\
+"	bne	1b\n"							\
+	extable								\
 	: "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)		\
 	: "r" (&v->counter), "Ir" (i)					\
 	: "cc");							\
 }									\
 
-#define ATOMIC_OP_RETURN(op, c_op, asm_op)				\
-static inline int atomic_##op##_return_relaxed(int i, atomic_t *v)	\
+#define ATOMIC_OP(op, c_op, asm_op) __ATOMIC_OP(op, _unchecked, c_op, asm_op, , )\
+				    __ATOMIC_OP(op, , c_op, asm_op##s, __OVERFLOW_POST, __OVERFLOW_EXTABLE)
+
+#define __ATOMIC_OP_RETURN(op, suffix, c_op, asm_op, post_op, extable)	\
+static inline int atomic_##op##_return##suffix##_relaxed(int i, atomic##suffix##_t *v)\
 {									\
 	unsigned long tmp;						\
 	int result;							\
 									\
 	prefetchw(&v->counter);						\
 									\
-	__asm__ __volatile__("@ atomic_" #op "_return\n"		\
+	__asm__ __volatile__("@ atomic_" #op "_return" #suffix "\n"	\
 "1:	ldrex	%0, [%3]\n"						\
 "	" #asm_op "	%0, %0, %4\n"					\
+	post_op								\
 "	strex	%1, %0, [%3]\n"						\
 "	teq	%1, #0\n"						\
-"	bne	1b"							\
+"	bne	1b\n"							\
+	extable								\
 	: "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)		\
 	: "r" (&v->counter), "Ir" (i)					\
 	: "cc");							\
@@ -78,8 +128,12 @@ static inline int atomic_##op##_return_relaxed(int i, atomic_t *v)	\
 }
 
 #define atomic_add_return_relaxed	atomic_add_return_relaxed
+#define atomic_add_return_unchecked	atomic_add_return_unchecked_relaxed
 #define atomic_sub_return_relaxed	atomic_sub_return_relaxed
 
+#define ATOMIC_OP_RETURN(op, c_op, asm_op) __ATOMIC_OP_RETURN(op, _unchecked, c_op, asm_op, , )\
+					   __ATOMIC_OP_RETURN(op, , c_op, asm_op##s, __OVERFLOW_POST_RETURN, __OVERFLOW_EXTABLE)
+
 static inline int atomic_cmpxchg_relaxed(atomic_t *ptr, int old, int new)
 {
 	int oldval;
@@ -113,12 +167,24 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
 	__asm__ __volatile__ ("@ atomic_add_unless\n"
 "1:	ldrex	%0, [%4]\n"
 "	teq	%0, %5\n"
-"	beq	2f\n"
-"	add	%1, %0, %6\n"
+"	beq	4f\n"
+"	adds	%1, %0, %6\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"	bvc	3f\n"
+"2:	" REFCOUNT_TRAP_INSN "\n"
+"3:\n"
+#endif
+
 "	strex	%2, %1, [%4]\n"
 "	teq	%2, #0\n"
 "	bne	1b\n"
-"2:"
+"4:"
+
+#ifdef CONFIG_PAX_REFCOUNT
+	_ASM_EXTABLE(2b, 4b)
+#endif
+
 	: "=&r" (oldval), "=&r" (newval), "=&r" (tmp), "+Qo" (v->counter)
 	: "r" (&v->counter), "r" (u), "r" (a)
 	: "cc");
@@ -129,14 +195,36 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
 	return oldval;
 }
 
+static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *ptr, int old, int new)
+{
+	unsigned long oldval, res;
+
+	smp_mb();
+
+	do {
+		__asm__ __volatile__("@ atomic_cmpxchg_unchecked\n"
+		"ldrex	%1, [%3]\n"
+		"mov	%0, #0\n"
+		"teq	%1, %4\n"
+		"strexeq %0, %5, [%3]\n"
+		    : "=&r" (res), "=&r" (oldval), "+Qo" (ptr->counter)
+		    : "r" (&ptr->counter), "Ir" (old), "r" (new)
+		    : "cc");
+	} while (res);
+
+	smp_mb();
+
+	return oldval;
+}
+
 #else /* ARM_ARCH_6 */
 
 #ifdef CONFIG_SMP
 #error SMP not supported on pre-ARMv6 CPUs
 #endif
 
-#define ATOMIC_OP(op, c_op, asm_op)					\
-static inline void atomic_##op(int i, atomic_t *v)			\
+#define __ATOMIC_OP(op, suffix, c_op, asm_op)				\
+static inline void atomic_##op##suffix(int i, atomic##suffix##_t *v)	\
 {									\
 	unsigned long flags;						\
 									\
@@ -145,8 +233,11 @@ static inline void atomic_##op(int i, atomic_t *v)			\
 	raw_local_irq_restore(flags);					\
 }									\
 
-#define ATOMIC_OP_RETURN(op, c_op, asm_op)				\
-static inline int atomic_##op##_return(int i, atomic_t *v)		\
+#define ATOMIC_OP(op, c_op, asm_op) __ATOMIC_OP(op, , c_op, asm_op)	\
+				    __ATOMIC_OP(op, _unchecked, c_op, asm_op)
+
+#define __ATOMIC_OP_RETURN(op, suffix, c_op, asm_op)			\
+static inline int atomic_##op##_return##suffix(int i, atomic##suffix##_t *v)\
 {									\
 	unsigned long flags;						\
 	int val;							\
@@ -159,6 +250,9 @@ static inline int atomic_##op##_return(int i, atomic_t *v)		\
 	return val;							\
 }
 
+#define ATOMIC_OP_RETURN(op, c_op, asm_op) __ATOMIC_OP_RETURN(op, , c_op, asm_op)\
+					   __ATOMIC_OP_RETURN(op, _unchecked, c_op, asm_op)
+
 static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
 {
 	int ret;
@@ -173,6 +267,11 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
 	return ret;
 }
 
+static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new)
+{
+	return atomic_cmpxchg((atomic_t *)v, old, new);
+}
+
 static inline int __atomic_add_unless(atomic_t *v, int a, int u)
 {
 	int c, old;
@@ -201,16 +300,38 @@ ATOMIC_OP(xor, ^=, eor)
 
 #undef ATOMIC_OPS
 #undef ATOMIC_OP_RETURN
+#undef __ATOMIC_OP_RETURN
 #undef ATOMIC_OP
+#undef __ATOMIC_OP
 
 #define atomic_xchg(v, new) (xchg(&((v)->counter), new))
+static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new)
+{
+	return xchg_relaxed(&v->counter, new);
+}
 
 #define atomic_inc(v)		atomic_add(1, v)
+static inline void atomic_inc_unchecked(atomic_unchecked_t *v)
+{
+	atomic_add_unchecked(1, v);
+}
 #define atomic_dec(v)		atomic_sub(1, v)
+static inline void atomic_dec_unchecked(atomic_unchecked_t *v)
+{
+	atomic_sub_unchecked(1, v);
+}
 
 #define atomic_inc_and_test(v)	(atomic_add_return(1, v) == 0)
+static inline int atomic_inc_and_test_unchecked(atomic_unchecked_t *v)
+{
+	return atomic_add_return_unchecked(1, v) == 0;
+}
 #define atomic_dec_and_test(v)	(atomic_sub_return(1, v) == 0)
 #define atomic_inc_return_relaxed(v)    (atomic_add_return_relaxed(1, v))
+static inline int atomic_inc_return_unchecked_relaxed(atomic_unchecked_t *v)
+{
+	return atomic_add_return_unchecked_relaxed(1, v);
+}
 #define atomic_dec_return_relaxed(v)    (atomic_sub_return_relaxed(1, v))
 #define atomic_sub_and_test(i, v) (atomic_sub_return(i, v) == 0)
 
@@ -221,6 +342,14 @@ typedef struct {
 	long long counter;
 } atomic64_t;
 
+#ifdef CONFIG_PAX_REFCOUNT
+typedef struct {
+	long long counter;
+} atomic64_unchecked_t;
+#else
+typedef atomic64_t atomic64_unchecked_t;
+#endif
+
 #define ATOMIC64_INIT(i) { (i) }
 
 #ifdef CONFIG_ARM_LPAE
@@ -237,6 +366,19 @@ static inline long long atomic64_read(const atomic64_t *v)
 	return result;
 }
 
+static inline long long atomic64_read_unchecked(const atomic64_unchecked_t *v)
+{
+	long long result;
+
+	__asm__ __volatile__("@ atomic64_read_unchecked\n"
+"	ldrd	%0, %H0, [%1]"
+	: "=&r" (result)
+	: "r" (&v->counter), "Qo" (v->counter)
+	);
+
+	return result;
+}
+
 static inline void atomic64_set(atomic64_t *v, long long i)
 {
 	__asm__ __volatile__("@ atomic64_set\n"
@@ -245,6 +387,15 @@ static inline void atomic64_set(atomic64_t *v, long long i)
 	: "r" (&v->counter), "r" (i)
 	);
 }
+
+static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long long i)
+{
+	__asm__ __volatile__("@ atomic64_set_unchecked\n"
+"	strd	%2, %H2, [%1]"
+	: "=Qo" (v->counter)
+	: "r" (&v->counter), "r" (i)
+	);
+}
 #else
 static inline long long atomic64_read(const atomic64_t *v)
 {
@@ -259,6 +410,19 @@ static inline long long atomic64_read(const atomic64_t *v)
 	return result;
 }
 
+static inline long long atomic64_read_unchecked(const atomic64_unchecked_t *v)
+{
+	long long result;
+
+	__asm__ __volatile__("@ atomic64_read_unchecked\n"
+"	ldrexd	%0, %H0, [%1]"
+	: "=&r" (result)
+	: "r" (&v->counter), "Qo" (v->counter)
+	);
+
+	return result;
+}
+
 static inline void atomic64_set(atomic64_t *v, long long i)
 {
 	long long tmp;
@@ -273,43 +437,73 @@ static inline void atomic64_set(atomic64_t *v, long long i)
 	: "r" (&v->counter), "r" (i)
 	: "cc");
 }
+
+static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long long i)
+{
+	long long tmp;
+
+	prefetchw(&v->counter);
+	__asm__ __volatile__("@ atomic64_set_unchecked\n"
+"1:	ldrexd	%0, %H0, [%2]\n"
+"	strexd	%0, %3, %H3, [%2]\n"
+"	teq	%0, #0\n"
+"	bne	1b"
+	: "=&r" (tmp), "=Qo" (v->counter)
+	: "r" (&v->counter), "r" (i)
+	: "cc");
+}
 #endif
 
-#define ATOMIC64_OP(op, op1, op2)					\
-static inline void atomic64_##op(long long i, atomic64_t *v)		\
+#undef __OVERFLOW_POST_RETURN
+#define __OVERFLOW_POST_RETURN		\
+	"	bvc	3f\n"		\
+"	mov	%0, %1\n"		\
+"	mov	%H0, %H1\n"		\
+	"2:	" REFCOUNT_TRAP_INSN "\n"\
+	"3:\n"
+
+#define __ATOMIC64_OP(op, suffix, op1, op2, post_op, extable)		\
+static inline void atomic64_##op##suffix(long long i, atomic64##suffix##_t *v)\
 {									\
 	long long result;						\
 	unsigned long tmp;						\
 									\
 	prefetchw(&v->counter);						\
-	__asm__ __volatile__("@ atomic64_" #op "\n"			\
+	__asm__ __volatile__("@ atomic64_" #op #suffix "\n"		\
 "1:	ldrexd	%0, %H0, [%3]\n"					\
 "	" #op1 " %Q0, %Q0, %Q4\n"					\
 "	" #op2 " %R0, %R0, %R4\n"					\
+	post_op								\
 "	strexd	%1, %0, %H0, [%3]\n"					\
 "	teq	%1, #0\n"						\
-"	bne	1b"							\
+"	bne	1b\n"							\
+	extable								\
 	: "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)		\
 	: "r" (&v->counter), "r" (i)					\
 	: "cc");							\
 }									\
 
-#define ATOMIC64_OP_RETURN(op, op1, op2)				\
+#define ATOMIC64_OP(op, op1, op2) __ATOMIC64_OP(op, _unchecked, op1, op2, , ) \
+				  __ATOMIC64_OP(op, , op1, op2##s, __OVERFLOW_POST, __OVERFLOW_EXTABLE)
+
+#define __ATOMIC64_OP_RETURN(op, suffix, op1, op2, post_op, extable)	\
 static inline long long							\
-atomic64_##op##_return_relaxed(long long i, atomic64_t *v)		\
+atomic64_##op##_return##suffix##_relaxed(long long i, atomic64##suffix##_t *v) \
 {									\
 	long long result;						\
 	unsigned long tmp;						\
 									\
 	prefetchw(&v->counter);						\
 									\
-	__asm__ __volatile__("@ atomic64_" #op "_return\n"		\
+	__asm__ __volatile__("@ atomic64_" #op "_return" #suffix "\n"	\
 "1:	ldrexd	%0, %H0, [%3]\n"					\
 "	" #op1 " %Q0, %Q0, %Q4\n"					\
 "	" #op2 " %R0, %R0, %R4\n"					\
+	post_op								\
 "	strexd	%1, %0, %H0, [%3]\n"					\
 "	teq	%1, #0\n"						\
-"	bne	1b"							\
+"	bne	1b\n"							\
+	extable								\
 	: "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)		\
 	: "r" (&v->counter), "r" (i)					\
 	: "cc");							\
@@ -317,6 +511,9 @@ atomic64_##op##_return_relaxed(long long i, atomic64_t *v)		\
 	return result;							\
 }
 
+#define ATOMIC64_OP_RETURN(op, op1, op2) __ATOMIC64_OP_RETURN(op, _unchecked, op1, op2, , ) \
+					 __ATOMIC64_OP_RETURN(op, , op1, op2##s, __OVERFLOW_POST_RETURN, __OVERFLOW_EXTABLE)
+
 #define ATOMIC64_OPS(op, op1, op2)					\
 	ATOMIC64_OP(op, op1, op2)					\
 	ATOMIC64_OP_RETURN(op, op1, op2)
@@ -325,6 +522,7 @@ ATOMIC64_OPS(add, adds, adc)
 ATOMIC64_OPS(sub, subs, sbc)
 
 #define atomic64_add_return_relaxed	atomic64_add_return_relaxed
+#define atomic64_add_return_unchecked	atomic64_add_return_unchecked_relaxed
 #define atomic64_sub_return_relaxed	atomic64_sub_return_relaxed
 
 #define atomic64_andnot atomic64_andnot
@@ -336,7 +534,12 @@ ATOMIC64_OP(xor, eor, eor)
 
 #undef ATOMIC64_OPS
 #undef ATOMIC64_OP_RETURN
+#undef __ATOMIC64_OP_RETURN
 #undef ATOMIC64_OP
+#undef __ATOMIC64_OP
+#undef __OVERFLOW_EXTABLE
+#undef __OVERFLOW_POST_RETURN
+#undef __OVERFLOW_POST
 
 static inline long long
 atomic64_cmpxchg_relaxed(atomic64_t *ptr, long long old, long long new)
@@ -361,6 +564,33 @@ atomic64_cmpxchg_relaxed(atomic64_t *ptr, long long old, long long new)
 	return oldval;
 }
 #define atomic64_cmpxchg_relaxed	atomic64_cmpxchg_relaxed
+#define atomic64_cmpxchg_unchecked	atomic64_cmpxchg_unchecked_relaxed
+
+static inline long long
+atomic64_cmpxchg_unchecked_relaxed(atomic64_unchecked_t *ptr, long long old,
+					long long new)
+{
+	long long oldval;
+	unsigned long res;
+
+	smp_mb();
+
+	do {
+		__asm__ __volatile__("@ atomic64_cmpxchg_unchecked\n"
+		"ldrexd		%1, %H1, [%3]\n"
+		"mov		%0, #0\n"
+		"teq		%1, %4\n"
+		"teqeq		%H1, %H4\n"
+		"strexdeq	%0, %5, %H5, [%3]"
+		: "=&r" (res), "=&r" (oldval), "+Qo" (ptr->counter)
+		: "r" (&ptr->counter), "r" (old), "r" (new)
+		: "cc");
+	} while (res);
+
+	smp_mb();
+
+	return oldval;
+}
 
 static inline long long atomic64_xchg_relaxed(atomic64_t *ptr, long long new)
 {
@@ -385,21 +615,35 @@ static inline long long atomic64_xchg_relaxed(atomic64_t *ptr, long long new)
 static inline long long atomic64_dec_if_positive(atomic64_t *v)
 {
 	long long result;
-	unsigned long tmp;
+	u64 tmp;
 
 	smp_mb();
 	prefetchw(&v->counter);
 
 	__asm__ __volatile__("@ atomic64_dec_if_positive\n"
-"1:	ldrexd	%0, %H0, [%3]\n"
-"	subs	%Q0, %Q0, #1\n"
-"	sbc	%R0, %R0, #0\n"
+"1:	ldrexd	%1, %H1, [%3]\n"
+"	subs	%Q0, %Q1, #1\n"
+"	sbcs	%R0, %R1, #0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"	bvc	3f\n"
+"	mov	%Q0, %Q1\n"
+"	mov	%R0, %R1\n"
+"2:	" REFCOUNT_TRAP_INSN "\n"
+"3:\n"
+#endif
+
 "	teq	%R0, #0\n"
-"	bmi	2f\n"
+"	bmi	4f\n"
 "	strexd	%1, %0, %H0, [%3]\n"
 "	teq	%1, #0\n"
 "	bne	1b\n"
-"2:"
+"4:\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+	_ASM_EXTABLE(2b, 4b)
+#endif
+
 	: "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
 	: "r" (&v->counter)
 	: "cc");
@@ -423,13 +667,25 @@ static inline int atomic64_add_unless(atomic64_t *v, long long a, long long u)
 "	teq	%0, %5\n"
 "	teqeq	%H0, %H5\n"
 "	moveq	%1, #0\n"
-"	beq	2f\n"
+"	beq	4f\n"
 "	adds	%Q0, %Q0, %Q6\n"
-"	adc	%R0, %R0, %R6\n"
+"	adcs	%R0, %R0, %R6\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"	bvc	3f\n"
+"2:	" REFCOUNT_TRAP_INSN "\n"
+"3:\n"
+#endif
+
 "	strexd	%2, %0, %H0, [%4]\n"
 "	teq	%2, #0\n"
 "	bne	1b\n"
-"2:"
+"4:\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+	_ASM_EXTABLE(2b, 4b)
+#endif
+
 	: "=&r" (val), "+r" (ret), "=&r" (tmp), "+Qo" (v->counter)
 	: "r" (&v->counter), "r" (u), "r" (a)
 	: "cc");
@@ -442,10 +698,13 @@ static inline int atomic64_add_unless(atomic64_t *v, long long a, long long u)
 
 #define atomic64_add_negative(a, v)	(atomic64_add_return((a), (v)) < 0)
 #define atomic64_inc(v)			atomic64_add(1LL, (v))
+#define atomic64_inc_unchecked(v)	atomic64_add_unchecked(1LL, (v))
 #define atomic64_inc_return_relaxed(v)	atomic64_add_return_relaxed(1LL, (v))
+#define atomic64_inc_return_unchecked_relaxed(v)	atomic64_add_return_unchecked_relaxed(1LL, (v))
 #define atomic64_inc_and_test(v)	(atomic64_inc_return(v) == 0)
 #define atomic64_sub_and_test(a, v)	(atomic64_sub_return((a), (v)) == 0)
 #define atomic64_dec(v)			atomic64_sub(1LL, (v))
+#define atomic64_dec_unchecked(v)	atomic64_sub_unchecked(1LL, (v))
 #define atomic64_dec_return_relaxed(v)	atomic64_sub_return_relaxed(1LL, (v))
 #define atomic64_dec_and_test(v)	(atomic64_dec_return((v)) == 0)
 #define atomic64_inc_not_zero(v)	atomic64_add_unless((v), 1LL, 0LL)
diff --git a/arch/arm/include/asm/cache.h b/arch/arm/include/asm/cache.h
index 75fe66b..2255c86 100644
--- a/arch/arm/include/asm/cache.h
+++ b/arch/arm/include/asm/cache.h
@@ -4,8 +4,10 @@
 #ifndef __ASMARM_CACHE_H
 #define __ASMARM_CACHE_H
 
+#include <linux/const.h>
+
 #define L1_CACHE_SHIFT		CONFIG_ARM_L1_CACHE_SHIFT
-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
+#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
 
 /*
  * Memory returned by kmalloc() may be used for DMA, so we must make
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index 9156fc3..9791d17 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -116,7 +116,7 @@ struct cpu_cache_fns {
 	void (*dma_unmap_area)(const void *, size_t, int);
 
 	void (*dma_flush_range)(const void *, const void *);
-};
+} __no_const;
 
 /*
  * Select the calling method
diff --git a/arch/arm/include/asm/checksum.h b/arch/arm/include/asm/checksum.h
index 524692f..a8871ec 100644
--- a/arch/arm/include/asm/checksum.h
+++ b/arch/arm/include/asm/checksum.h
@@ -37,7 +37,19 @@ __wsum
 csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum);
 
 __wsum
-csum_partial_copy_from_user(const void __user *src, void *dst, int len, __wsum sum, int *err_ptr);
+__csum_partial_copy_from_user(const void __user *src, void *dst, int len, __wsum sum, int *err_ptr);
+
+static inline __wsum
+csum_partial_copy_from_user(const void __user *src, void *dst, int len, __wsum sum, int *err_ptr)
+{
+	__wsum ret;
+	pax_open_userland();
+	ret = __csum_partial_copy_from_user(src, dst, len, sum, err_ptr);
+	pax_close_userland();
+	return ret;
+}
+
+
 
 /*
  * 	Fold a partial checksum without adding pseudo headers
diff --git a/arch/arm/include/asm/cmpxchg.h b/arch/arm/include/asm/cmpxchg.h
index 97882f9..0cc6ef1 100644
--- a/arch/arm/include/asm/cmpxchg.h
+++ b/arch/arm/include/asm/cmpxchg.h
@@ -117,6 +117,10 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr, int size
 	(__typeof__(*(ptr)))__xchg((unsigned long)(x), (ptr),		\
 				   sizeof(*(ptr)));			\
 })
+#define xchg_unchecked(ptr, x) ({					\
+	(__typeof__(*(ptr)))__xchg((unsigned long)(x), (ptr),		\
+				   sizeof(*(ptr)));			\
+})
 
 #include <asm-generic/cmpxchg-local.h>
 
diff --git a/arch/arm/include/asm/cpuidle.h b/arch/arm/include/asm/cpuidle.h
index 3848259..bee9d84 100644
--- a/arch/arm/include/asm/cpuidle.h
+++ b/arch/arm/include/asm/cpuidle.h
@@ -32,7 +32,7 @@ struct device_node;
 struct cpuidle_ops {
 	int (*suspend)(unsigned long arg);
 	int (*init)(struct device_node *, int cpu);
-};
+} __no_const;
 
 struct of_cpuidle_method {
 	const char *method;
diff --git a/arch/arm/include/asm/domain.h b/arch/arm/include/asm/domain.h
index 99d9f63..e3e4da6 100644
--- a/arch/arm/include/asm/domain.h
+++ b/arch/arm/include/asm/domain.h
@@ -42,7 +42,6 @@
 #define DOMAIN_USER	1
 #define DOMAIN_IO	0
 #endif
-#define DOMAIN_VECTORS	3
 
 /*
  * Domain types
@@ -51,9 +50,27 @@
 #define DOMAIN_CLIENT	1
 #ifdef CONFIG_CPU_USE_DOMAINS
 #define DOMAIN_MANAGER	3
+#define DOMAIN_VECTORS	3
 #else
+
+#ifdef CONFIG_PAX_KERNEXEC
 #define DOMAIN_MANAGER	1
+#define DOMAIN_KERNEXEC	3
+#else
+#define DOMAIN_MANAGER	1
+#endif
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+#define DOMAIN_USERCLIENT	0
+#define DOMAIN_UDEREF		1
+#define DOMAIN_VECTORS		DOMAIN_KERNEL
+#else
+#define DOMAIN_USERCLIENT	1
+#define DOMAIN_VECTORS		DOMAIN_USER
+#endif
+
 #endif
+#define DOMAIN_KERNELCLIENT	1
 
 #define domain_mask(dom)	((3) << (2 * (dom)))
 #define domain_val(dom,type)	((type) << (2 * (dom)))
@@ -62,13 +79,19 @@
 #define DACR_INIT \
 	(domain_val(DOMAIN_USER, DOMAIN_NOACCESS) | \
 	 domain_val(DOMAIN_KERNEL, DOMAIN_MANAGER) | \
-	 domain_val(DOMAIN_IO, DOMAIN_CLIENT) | \
+	 domain_val(DOMAIN_IO, DOMAIN_KERNELCLIENT) | \
 	 domain_val(DOMAIN_VECTORS, DOMAIN_CLIENT))
+#elif defined(CONFIG_PAX_MEMORY_UDEREF)
+	/* DOMAIN_VECTORS is defined to DOMAIN_KERNEL */
+#define DACR_INIT \
+	(domain_val(DOMAIN_USER, DOMAIN_USERCLIENT) | \
+	 domain_val(DOMAIN_KERNEL, DOMAIN_MANAGER) | \
+	 domain_val(DOMAIN_IO, DOMAIN_KERNELCLIENT))
 #else
 #define DACR_INIT \
-	(domain_val(DOMAIN_USER, DOMAIN_CLIENT) | \
+	(domain_val(DOMAIN_USER, DOMAIN_USERCLIENT) | \
 	 domain_val(DOMAIN_KERNEL, DOMAIN_MANAGER) | \
-	 domain_val(DOMAIN_IO, DOMAIN_CLIENT) | \
+	 domain_val(DOMAIN_IO, DOMAIN_KERNELCLIENT) | \
 	 domain_val(DOMAIN_VECTORS, DOMAIN_CLIENT))
 #endif
 
@@ -124,6 +147,17 @@ static inline void set_domain(unsigned val)
 		set_domain(domain);				\
 	} while (0)
 
+#elif defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
+#define modify_domain(dom,type)					\
+	do {							\
+		struct thread_info *thread = current_thread_info(); \
+		unsigned int domain = get_domain();		\
+		domain &= ~domain_mask(dom);			\
+		domain = domain | domain_val(dom, type);	\
+		thread->cpu_domain = domain;			\
+		set_domain(domain);				\
+	} while (0)
+
 #else
 static inline void modify_domain(unsigned dom, unsigned type)	{ }
 #endif
diff --git a/arch/arm/include/asm/elf.h b/arch/arm/include/asm/elf.h
index d2315ff..f60b47b 100644
--- a/arch/arm/include/asm/elf.h
+++ b/arch/arm/include/asm/elf.h
@@ -117,7 +117,14 @@ int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs);
    the loader.  We need to make sure that it is out of the way of the program
    that it will "exec", and that there is sufficient room for the brk.  */
 
-#define ELF_ET_DYN_BASE	(TASK_SIZE / 3 * 2)
+#define ELF_ET_DYN_BASE		(TASK_SIZE / 3 * 2)
+
+#ifdef CONFIG_PAX_ASLR
+#define PAX_ELF_ET_DYN_BASE	0x00008000UL
+
+#define PAX_DELTA_MMAP_LEN	((current->personality == PER_LINUX_32BIT) ? 16 : 10)
+#define PAX_DELTA_STACK_LEN	((current->personality == PER_LINUX_32BIT) ? 16 : 10)
+#endif
 
 /* When the program starts, a1 contains a pointer to a function to be 
    registered with atexit, as per the SVR4 ABI.  A value of 0 means we 
diff --git a/arch/arm/include/asm/fncpy.h b/arch/arm/include/asm/fncpy.h
index de53547..52b9a28 100644
--- a/arch/arm/include/asm/fncpy.h
+++ b/arch/arm/include/asm/fncpy.h
@@ -81,7 +81,9 @@
 	BUG_ON((uintptr_t)(dest_buf) & (FNCPY_ALIGN - 1) ||		\
 		(__funcp_address & ~(uintptr_t)1 & (FNCPY_ALIGN - 1)));	\
 									\
+	pax_open_kernel();						\
 	memcpy(dest_buf, (void const *)(__funcp_address & ~1), size);	\
+	pax_close_kernel();						\
 	flush_icache_range((unsigned long)(dest_buf),			\
 		(unsigned long)(dest_buf) + (size));			\
 									\
diff --git a/arch/arm/include/asm/futex.h b/arch/arm/include/asm/futex.h
index 6795368..6c4d749 100644
--- a/arch/arm/include/asm/futex.h
+++ b/arch/arm/include/asm/futex.h
@@ -107,6 +107,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 		return -EFAULT;
 
 	preempt_disable();
+
 	__ua_flags = uaccess_save_and_enable();
 	__asm__ __volatile__("@futex_atomic_cmpxchg_inatomic\n"
 	"1:	" TUSER(ldr) "	%1, [%4]\n"
diff --git a/arch/arm/include/asm/kmap_types.h b/arch/arm/include/asm/kmap_types.h
index 83eb2f7..ed77159 100644
--- a/arch/arm/include/asm/kmap_types.h
+++ b/arch/arm/include/asm/kmap_types.h
@@ -4,6 +4,6 @@
 /*
  * This is the "bare minimum".  AIO seems to require this.
  */
-#define KM_TYPE_NR 16
+#define KM_TYPE_NR 17
 
 #endif
diff --git a/arch/arm/include/asm/mach/dma.h b/arch/arm/include/asm/mach/dma.h
index 9e614a1..3302cca 100644
--- a/arch/arm/include/asm/mach/dma.h
+++ b/arch/arm/include/asm/mach/dma.h
@@ -22,7 +22,7 @@ struct dma_ops {
 	int	(*residue)(unsigned int, dma_t *);		/* optional */
 	int	(*setspeed)(unsigned int, dma_t *, int);	/* optional */
 	const char *type;
-};
+} __do_const;
 
 struct dma_struct {
 	void		*addr;		/* single DMA address		*/
diff --git a/arch/arm/include/asm/mach/map.h b/arch/arm/include/asm/mach/map.h
index 9b7c328..2dfe68b 100644
--- a/arch/arm/include/asm/mach/map.h
+++ b/arch/arm/include/asm/mach/map.h
@@ -23,17 +23,19 @@ struct map_desc {
 
 /* types 0-3 are defined in asm/io.h */
 enum {
-	MT_UNCACHED = 4,
-	MT_CACHECLEAN,
-	MT_MINICLEAN,
+	MT_UNCACHED_RW = 4,
+	MT_CACHECLEAN_RO,
+	MT_MINICLEAN_RO,
 	MT_LOW_VECTORS,
 	MT_HIGH_VECTORS,
-	MT_MEMORY_RWX,
+	__MT_MEMORY_RWX,
 	MT_MEMORY_RW,
-	MT_ROM,
-	MT_MEMORY_RWX_NONCACHED,
+	MT_MEMORY_RX,
+	MT_ROM_RX,
+	MT_MEMORY_RW_NONCACHED,
+	MT_MEMORY_RX_NONCACHED,
 	MT_MEMORY_RW_DTCM,
-	MT_MEMORY_RWX_ITCM,
+	MT_MEMORY_RX_ITCM,
 	MT_MEMORY_RW_SO,
 	MT_MEMORY_DMA_READY,
 };
diff --git a/arch/arm/include/asm/outercache.h b/arch/arm/include/asm/outercache.h
index c2bf24f..69e437c 100644
--- a/arch/arm/include/asm/outercache.h
+++ b/arch/arm/include/asm/outercache.h
@@ -39,7 +39,7 @@ struct outer_cache_fns {
 	/* This is an ARM L2C thing */
 	void (*write_sec)(unsigned long, unsigned);
 	void (*configure)(const struct l2x0_regs *);
-};
+} __no_const;
 
 extern struct outer_cache_fns outer_cache;
 
diff --git a/arch/arm/include/asm/page.h b/arch/arm/include/asm/page.h
index 4355f0e..cd9168e 100644
--- a/arch/arm/include/asm/page.h
+++ b/arch/arm/include/asm/page.h
@@ -23,6 +23,7 @@
 
 #else
 
+#include <linux/compiler.h>
 #include <asm/glue.h>
 
 /*
@@ -114,7 +115,7 @@ struct cpu_user_fns {
 	void (*cpu_clear_user_highpage)(struct page *page, unsigned long vaddr);
 	void (*cpu_copy_user_highpage)(struct page *to, struct page *from,
 			unsigned long vaddr, struct vm_area_struct *vma);
-};
+} __no_const;
 
 #ifdef MULTI_USER
 extern struct cpu_user_fns cpu_user;
diff --git a/arch/arm/include/asm/pgalloc.h b/arch/arm/include/asm/pgalloc.h
index 19cfab5..3f5c7e9 100644
--- a/arch/arm/include/asm/pgalloc.h
+++ b/arch/arm/include/asm/pgalloc.h
@@ -17,6 +17,7 @@
 #include <asm/processor.h>
 #include <asm/cacheflush.h>
 #include <asm/tlbflush.h>
+#include <asm/system_info.h>
 
 #define check_pgt_cache()		do { } while (0)
 
@@ -43,6 +44,11 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
 	set_pud(pud, __pud(__pa(pmd) | PMD_TYPE_TABLE));
 }
 
+static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
+{
+	pud_populate(mm, pud, pmd);
+}
+
 #else	/* !CONFIG_ARM_LPAE */
 
 /*
@@ -51,6 +57,7 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
 #define pmd_alloc_one(mm,addr)		({ BUG(); ((pmd_t *)2); })
 #define pmd_free(mm, pmd)		do { } while (0)
 #define pud_populate(mm,pmd,pte)	BUG()
+#define pud_populate_kernel(mm,pmd,pte)	BUG()
 
 #endif	/* CONFIG_ARM_LPAE */
 
@@ -128,6 +135,19 @@ static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
 	__free_page(pte);
 }
 
+static inline void __section_update(pmd_t *pmdp, unsigned long addr, pmdval_t prot)
+{
+#ifdef CONFIG_ARM_LPAE
+	pmdp[0] = __pmd(pmd_val(pmdp[0]) | prot);
+#else
+	if (addr & SECTION_SIZE)
+		pmdp[1] = __pmd(pmd_val(pmdp[1]) | prot);
+	else
+		pmdp[0] = __pmd(pmd_val(pmdp[0]) | prot);
+#endif
+	flush_pmd_entry(pmdp);
+}
+
 static inline void __pmd_populate(pmd_t *pmdp, phys_addr_t pte,
 				  pmdval_t prot)
 {
diff --git a/arch/arm/include/asm/pgtable-2level-hwdef.h b/arch/arm/include/asm/pgtable-2level-hwdef.h
index d0131ee..23a0939 100644
--- a/arch/arm/include/asm/pgtable-2level-hwdef.h
+++ b/arch/arm/include/asm/pgtable-2level-hwdef.h
@@ -28,7 +28,7 @@
 /*
  *   - section
  */
-#define PMD_SECT_PXN    (_AT(pmdval_t, 1) << 0)     /* v7 */
+#define PMD_SECT_PXN		(_AT(pmdval_t, 1) << 0)     /* v7 */
 #define PMD_SECT_BUFFERABLE	(_AT(pmdval_t, 1) << 2)
 #define PMD_SECT_CACHEABLE	(_AT(pmdval_t, 1) << 3)
 #define PMD_SECT_XN		(_AT(pmdval_t, 1) << 4)		/* v6 */
@@ -40,6 +40,7 @@
 #define PMD_SECT_nG		(_AT(pmdval_t, 1) << 17)	/* v6 */
 #define PMD_SECT_SUPER		(_AT(pmdval_t, 1) << 18)	/* v6 */
 #define PMD_SECT_AF		(_AT(pmdval_t, 0))
+#define PMD_SECT_RDONLY		(_AT(pmdval_t, 0))
 
 #define PMD_SECT_UNCACHED	(_AT(pmdval_t, 0))
 #define PMD_SECT_BUFFERED	(PMD_SECT_BUFFERABLE)
@@ -69,6 +70,7 @@
  *   - extended small page/tiny page
  */
 #define PTE_EXT_XN		(_AT(pteval_t, 1) << 0)		/* v6 */
+#define PTE_EXT_PXN		(_AT(pteval_t, 1) << 2)		/* v7 */
 #define PTE_EXT_AP_MASK		(_AT(pteval_t, 3) << 4)
 #define PTE_EXT_AP0		(_AT(pteval_t, 1) << 4)
 #define PTE_EXT_AP1		(_AT(pteval_t, 2) << 4)
diff --git a/arch/arm/include/asm/pgtable-2level.h b/arch/arm/include/asm/pgtable-2level.h
index aeddd28..207745c 100644
--- a/arch/arm/include/asm/pgtable-2level.h
+++ b/arch/arm/include/asm/pgtable-2level.h
@@ -127,6 +127,9 @@
 #define L_PTE_SHARED		(_AT(pteval_t, 1) << 10)	/* shared(v6), coherent(xsc3) */
 #define L_PTE_NONE		(_AT(pteval_t, 1) << 11)
 
+/* Two-level page tables only have PXN in the PGD, not in the PTE. */
+#define L_PTE_PXN		(_AT(pteval_t, 0))
+
 /*
  * These are the memory types, defined to be compatible with
  * pre-ARMv6 CPUs cacheable and bufferable bits: n/a,n/a,C,B
diff --git a/arch/arm/include/asm/pgtable-3level.h b/arch/arm/include/asm/pgtable-3level.h
index dc46398..70dab92 100644
--- a/arch/arm/include/asm/pgtable-3level.h
+++ b/arch/arm/include/asm/pgtable-3level.h
@@ -80,6 +80,7 @@
 #define L_PTE_USER		(_AT(pteval_t, 1) << 6)		/* AP[1] */
 #define L_PTE_SHARED		(_AT(pteval_t, 3) << 8)		/* SH[1:0], inner shareable */
 #define L_PTE_YOUNG		(_AT(pteval_t, 1) << 10)	/* AF */
+#define L_PTE_PXN		(_AT(pteval_t, 1) << 53)	/* PXN */
 #define L_PTE_XN		(_AT(pteval_t, 1) << 54)	/* XN */
 #define L_PTE_DIRTY		(_AT(pteval_t, 1) << 55)
 #define L_PTE_SPECIAL		(_AT(pteval_t, 1) << 56)
@@ -90,10 +91,12 @@
 #define L_PMD_SECT_DIRTY	(_AT(pmdval_t, 1) << 55)
 #define L_PMD_SECT_NONE		(_AT(pmdval_t, 1) << 57)
 #define L_PMD_SECT_RDONLY	(_AT(pteval_t, 1) << 58)
+#define PMD_SECT_RDONLY		PMD_SECT_AP2
 
 /*
  * To be used in assembly code with the upper page attributes.
  */
+#define L_PTE_PXN_HIGH		(1 << (53 - 32))
 #define L_PTE_XN_HIGH		(1 << (54 - 32))
 #define L_PTE_DIRTY_HIGH	(1 << (55 - 32))
 
diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h
index 348caab..306b62d 100644
--- a/arch/arm/include/asm/pgtable.h
+++ b/arch/arm/include/asm/pgtable.h
@@ -33,6 +33,9 @@
 #include <asm/pgtable-2level.h>
 #endif
 
+#define ktla_ktva(addr)		(addr)
+#define ktva_ktla(addr)		(addr)
+
 /*
  * Just any arbitrary offset to the start of the vmalloc VM area: the
  * current 8MB value just means that there will be a 8MB "hole" after the
@@ -48,6 +51,9 @@
 #define LIBRARY_TEXT_START	0x0c000000
 
 #ifndef __ASSEMBLY__
+extern pteval_t __supported_pte_mask;
+extern pmdval_t __supported_pmd_mask;
+
 extern void __pte_error(const char *file, int line, pte_t);
 extern void __pmd_error(const char *file, int line, pmd_t);
 extern void __pgd_error(const char *file, int line, pgd_t);
@@ -56,6 +62,48 @@ extern void __pgd_error(const char *file, int line, pgd_t);
 #define pmd_ERROR(pmd)		__pmd_error(__FILE__, __LINE__, pmd)
 #define pgd_ERROR(pgd)		__pgd_error(__FILE__, __LINE__, pgd)
 
+#define  __HAVE_ARCH_PAX_OPEN_KERNEL
+#define  __HAVE_ARCH_PAX_CLOSE_KERNEL
+
+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
+#include <asm/domain.h>
+#include <linux/thread_info.h>
+#include <linux/preempt.h>
+
+static inline int test_domain(int domain, int domaintype)
+{
+	return ((current_thread_info()->cpu_domain) & domain_val(domain, 3)) == domain_val(domain, domaintype);
+}
+#endif
+
+#ifdef CONFIG_PAX_KERNEXEC
+static inline unsigned long pax_open_kernel(void) {
+#ifdef CONFIG_ARM_LPAE
+	/* TODO */
+#else
+	preempt_disable();
+	BUG_ON(test_domain(DOMAIN_KERNEL, DOMAIN_KERNEXEC));
+	modify_domain(DOMAIN_KERNEL, DOMAIN_KERNEXEC);
+#endif
+	return 0;
+}
+
+static inline unsigned long pax_close_kernel(void) {
+#ifdef CONFIG_ARM_LPAE
+	/* TODO */
+#else
+	BUG_ON(test_domain(DOMAIN_KERNEL, DOMAIN_MANAGER));
+	/* DOMAIN_MANAGER = "client" under KERNEXEC */
+	modify_domain(DOMAIN_KERNEL, DOMAIN_MANAGER);
+	preempt_enable_no_resched();
+#endif
+	return 0;
+}
+#else
+static inline unsigned long pax_open_kernel(void) { return 0; }
+static inline unsigned long pax_close_kernel(void) { return 0; }
+#endif
+
 /*
  * This is the lowest virtual address we can permit any user space
  * mapping to be mapped at.  This is particularly important for
@@ -75,8 +123,8 @@ extern void __pgd_error(const char *file, int line, pgd_t);
 /*
  * The pgprot_* and protection_map entries will be fixed up in runtime
  * to include the cachable and bufferable bits based on memory policy,
- * as well as any architecture dependent bits like global/ASID and SMP
- * shared mapping bits.
+ * as well as any architecture dependent bits like global/ASID, PXN,
+ * and SMP shared mapping bits.
  */
 #define _L_PTE_DEFAULT	L_PTE_PRESENT | L_PTE_YOUNG
 
@@ -307,7 +355,7 @@ static inline pte_t pte_mknexec(pte_t pte)
 static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
 {
 	const pteval_t mask = L_PTE_XN | L_PTE_RDONLY | L_PTE_USER |
-		L_PTE_NONE | L_PTE_VALID;
+		L_PTE_NONE | L_PTE_VALID | __supported_pte_mask;
 	pte_val(pte) = (pte_val(pte) & ~mask) | (pgprot_val(newprot) & mask);
 	return pte;
 }
diff --git a/arch/arm/include/asm/smp.h b/arch/arm/include/asm/smp.h
index 3d6dc8b..1262ad3 100644
--- a/arch/arm/include/asm/smp.h
+++ b/arch/arm/include/asm/smp.h
@@ -108,7 +108,7 @@ struct smp_operations {
 	int  (*cpu_disable)(unsigned int cpu);
 #endif
 #endif
-};
+} __no_const;
 
 struct of_cpu_method {
 	const char *method;
diff --git a/arch/arm/include/asm/string.h b/arch/arm/include/asm/string.h
index cf4f3aa..3f68273 100644
--- a/arch/arm/include/asm/string.h
+++ b/arch/arm/include/asm/string.h
@@ -7,19 +7,19 @@
  */
 
 #define __HAVE_ARCH_STRRCHR
-extern char * strrchr(const char * s, int c);
+extern char * strrchr(const char * s, int c) __nocapture(1);
 
 #define __HAVE_ARCH_STRCHR
-extern char * strchr(const char * s, int c);
+extern char * strchr(const char * s, int c) __nocapture(1);
 
 #define __HAVE_ARCH_MEMCPY
-extern void * memcpy(void *, const void *, __kernel_size_t);
+extern void * memcpy(void *, const void *, __kernel_size_t) __nocapture(2);
 
 #define __HAVE_ARCH_MEMMOVE
-extern void * memmove(void *, const void *, __kernel_size_t);
+extern void * memmove(void *, const void *, __kernel_size_t) __nocapture(2);
 
 #define __HAVE_ARCH_MEMCHR
-extern void * memchr(const void *, int, __kernel_size_t);
+extern void * memchr(const void *, int, __kernel_size_t) __nocapture(1);
 
 #define __HAVE_ARCH_MEMSET
 extern void * memset(void *, int, __kernel_size_t);
diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h
index 776757d..a552c1d 100644
--- a/arch/arm/include/asm/thread_info.h
+++ b/arch/arm/include/asm/thread_info.h
@@ -73,6 +73,9 @@ struct thread_info {
 	.flags		= 0,						\
 	.preempt_count	= INIT_PREEMPT_COUNT,				\
 	.addr_limit	= KERNEL_DS,					\
+	.cpu_domain	= domain_val(DOMAIN_USER, DOMAIN_USERCLIENT) |	\
+			  domain_val(DOMAIN_KERNEL, DOMAIN_KERNELCLIENT) | \
+			  domain_val(DOMAIN_IO, DOMAIN_KERNELCLIENT),	\
 }
 
 #define init_thread_info	(init_thread_union.thread_info)
@@ -143,6 +146,10 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
 #define TIF_SYSCALL_AUDIT	5	/* syscall auditing active */
 #define TIF_SYSCALL_TRACEPOINT	6	/* syscall tracepoint instrumentation */
 #define TIF_SECCOMP		7	/* seccomp syscall filtering active */
+/* within 8 bits of TIF_SYSCALL_TRACE
+ *  to meet flexible second operand requirements
+ */
+#define TIF_GRSEC_SETXID	8
 
 #define TIF_NOHZ		12	/* in adaptive nohz mode */
 #define TIF_USING_IWMMXT	17
@@ -158,10 +165,11 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
 #define _TIF_SYSCALL_TRACEPOINT	(1 << TIF_SYSCALL_TRACEPOINT)
 #define _TIF_SECCOMP		(1 << TIF_SECCOMP)
 #define _TIF_USING_IWMMXT	(1 << TIF_USING_IWMMXT)
+#define _TIF_GRSEC_SETXID	(1 << TIF_GRSEC_SETXID)
 
 /* Checks for any syscall work in entry-common.S */
 #define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
-			   _TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP)
+			   _TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP | _TIF_GRSEC_SETXID)
 
 /*
  * Change these and you break ASM code in entry-common.S
diff --git a/arch/arm/include/asm/tls.h b/arch/arm/include/asm/tls.h
index 5f833f7..76e6644 100644
--- a/arch/arm/include/asm/tls.h
+++ b/arch/arm/include/asm/tls.h
@@ -3,6 +3,7 @@
 
 #include <linux/compiler.h>
 #include <asm/thread_info.h>
+#include <asm/pgtable.h>
 
 #ifdef __ASSEMBLY__
 #include <asm/asm-offsets.h>
@@ -89,7 +90,9 @@ static inline void set_tls(unsigned long val)
 			 * at 0xffff0fe0 must be used instead.  (see
 			 * entry-armv.S for details)
 			 */
+			pax_open_kernel();
 			*((unsigned int *)0xffff0ff0) = val;
+			pax_close_kernel();
 #endif
 		}
 
diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h
index 35c9db8..400e490 100644
--- a/arch/arm/include/asm/uaccess.h
+++ b/arch/arm/include/asm/uaccess.h
@@ -18,6 +18,7 @@
 #include <asm/domain.h>
 #include <asm/unified.h>
 #include <asm/compiler.h>
+#include <asm/pgtable.h>
 
 #ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
 #include <asm-generic/uaccess-unaligned.h>
@@ -50,6 +51,59 @@ struct exception_table_entry
 extern int fixup_exception(struct pt_regs *regs);
 
 /*
+ * These two are intentionally not defined anywhere - if the kernel
+ * code generates any references to them, that's a bug.
+ */
+extern int __get_user_bad(void);
+extern int __put_user_bad(void);
+
+/*
+ * Note that this is actually 0x1,0000,0000
+ */
+#define KERNEL_DS	0x00000000
+#define get_ds()	(KERNEL_DS)
+
+#ifdef CONFIG_MMU
+
+#define USER_DS		TASK_SIZE
+#define get_fs()	(current_thread_info()->addr_limit)
+
+static inline void set_fs(mm_segment_t fs)
+{
+	current_thread_info()->addr_limit = fs;
+	modify_domain(DOMAIN_KERNEL, fs ? DOMAIN_KERNELCLIENT : DOMAIN_MANAGER);
+}
+
+#define segment_eq(a, b)	((a) == (b))
+
+#define __HAVE_ARCH_PAX_OPEN_USERLAND
+#define __HAVE_ARCH_PAX_CLOSE_USERLAND
+
+static inline void pax_open_userland(void)
+{
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	if (segment_eq(get_fs(), USER_DS)) {
+		BUG_ON(test_domain(DOMAIN_USER, DOMAIN_UDEREF));
+		modify_domain(DOMAIN_USER, DOMAIN_UDEREF);
+	}
+#endif
+
+}
+
+static inline void pax_close_userland(void)
+{
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	if (segment_eq(get_fs(), USER_DS)) {
+		BUG_ON(test_domain(DOMAIN_USER, DOMAIN_NOACCESS));
+		modify_domain(DOMAIN_USER, DOMAIN_NOACCESS);
+	}
+#endif
+
+}
+
+/*
  * These two functions allow hooking accesses to userspace to increase
  * system integrity by ensuring that the kernel can not inadvertantly
  * perform such accesses (eg, via list poison values) which could then
@@ -66,6 +120,7 @@ static inline unsigned int uaccess_save_and_enable(void)
 
 	return old_domain;
 #else
+	pax_open_userland();
 	return 0;
 #endif
 }
@@ -75,35 +130,11 @@ static inline void uaccess_restore(unsigned int flags)
 #ifdef CONFIG_CPU_SW_DOMAIN_PAN
 	/* Restore the user access mask */
 	set_domain(flags);
+#else
+	pax_close_userland();
 #endif
 }
 
-/*
- * These two are intentionally not defined anywhere - if the kernel
- * code generates any references to them, that's a bug.
- */
-extern int __get_user_bad(void);
-extern int __put_user_bad(void);
-
-/*
- * Note that this is actually 0x1,0000,0000
- */
-#define KERNEL_DS	0x00000000
-#define get_ds()	(KERNEL_DS)
-
-#ifdef CONFIG_MMU
-
-#define USER_DS		TASK_SIZE
-#define get_fs()	(current_thread_info()->addr_limit)
-
-static inline void set_fs(mm_segment_t fs)
-{
-	current_thread_info()->addr_limit = fs;
-	modify_domain(DOMAIN_KERNEL, fs ? DOMAIN_CLIENT : DOMAIN_MANAGER);
-}
-
-#define segment_eq(a, b)	((a) == (b))
-
 #define __addr_ok(addr) ({ \
 	unsigned long flag; \
 	__asm__("cmp %2, %0; movlo %0, #0" \
@@ -302,6 +333,7 @@ static inline void set_fs(mm_segment_t fs)
 
 #endif /* CONFIG_MMU */
 
+#define access_ok_noprefault(type, addr, size) access_ok((type), (addr), (size))
 #define access_ok(type, addr, size)	(__range_ok(addr, size) == 0)
 
 #define user_addr_max() \
@@ -490,39 +522,46 @@ do {									\
 
 
 #ifdef CONFIG_MMU
-extern unsigned long __must_check
+extern unsigned long __must_check __size_overflow(3)
 arm_copy_from_user(void *to, const void __user *from, unsigned long n);
 
-static inline unsigned long __must_check
+static inline unsigned long __must_check __size_overflow(3)
 __copy_from_user(void *to, const void __user *from, unsigned long n)
 {
-	unsigned int __ua_flags = uaccess_save_and_enable();
+	unsigned int __ua_flags;
+
+	check_object_size(to, n, false);
+	__ua_flags = uaccess_save_and_enable();
 	n = arm_copy_from_user(to, from, n);
 	uaccess_restore(__ua_flags);
 	return n;
 }
 
-extern unsigned long __must_check
+extern unsigned long __must_check __size_overflow(3)
 arm_copy_to_user(void __user *to, const void *from, unsigned long n);
-extern unsigned long __must_check
+extern unsigned long __must_check __size_overflow(3)
 __copy_to_user_std(void __user *to, const void *from, unsigned long n);
 
 static inline unsigned long __must_check
 __copy_to_user(void __user *to, const void *from, unsigned long n)
 {
 #ifndef CONFIG_UACCESS_WITH_MEMCPY
-	unsigned int __ua_flags = uaccess_save_and_enable();
+	unsigned int __ua_flags;
+
+	check_object_size(from, n, true);
+	__ua_flags = uaccess_save_and_enable();
 	n = arm_copy_to_user(to, from, n);
 	uaccess_restore(__ua_flags);
 	return n;
 #else
+	check_object_size(from, n, true);
 	return arm_copy_to_user(to, from, n);
 #endif
 }
 
-extern unsigned long __must_check
+extern unsigned long __must_check __size_overflow(2)
 arm_clear_user(void __user *addr, unsigned long n);
-extern unsigned long __must_check
+extern unsigned long __must_check __size_overflow(2)
 __clear_user_std(void __user *addr, unsigned long n);
 
 static inline unsigned long __must_check
@@ -542,6 +581,9 @@ __clear_user(void __user *addr, unsigned long n)
 
 static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long n)
 {
+	if ((long)n < 0)
+		return n;
+
 	if (access_ok(VERIFY_READ, from, n))
 		n = __copy_from_user(to, from, n);
 	else /* security hole - plug it */
@@ -551,6 +593,9 @@ static inline unsigned long __must_check copy_from_user(void *to, const void __u
 
 static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned long n)
 {
+	if ((long)n < 0)
+		return n;
+
 	if (access_ok(VERIFY_WRITE, to, n))
 		n = __copy_to_user(to, from, n);
 	return n;
diff --git a/arch/arm/include/uapi/asm/ptrace.h b/arch/arm/include/uapi/asm/ptrace.h
index 5af0ed1..cea83883 100644
--- a/arch/arm/include/uapi/asm/ptrace.h
+++ b/arch/arm/include/uapi/asm/ptrace.h
@@ -92,7 +92,7 @@
  * ARMv7 groups of PSR bits
  */
 #define APSR_MASK	0xf80f0000	/* N, Z, C, V, Q and GE flags */
-#define PSR_ISET_MASK	0x01000010	/* ISA state (J, T) mask */
+#define PSR_ISET_MASK	0x01000020	/* ISA state (J, T) mask */
 #define PSR_IT_MASK	0x0600fc00	/* If-Then execution state mask */
 #define PSR_ENDIAN_MASK	0x00000200	/* Endianness state mask */
 
diff --git a/arch/arm/kernel/armksyms.c b/arch/arm/kernel/armksyms.c
index 7e45f69..2c047db 100644
--- a/arch/arm/kernel/armksyms.c
+++ b/arch/arm/kernel/armksyms.c
@@ -59,7 +59,7 @@ EXPORT_SYMBOL(arm_delay_ops);
 
 	/* networking */
 EXPORT_SYMBOL(csum_partial);
-EXPORT_SYMBOL(csum_partial_copy_from_user);
+EXPORT_SYMBOL(__csum_partial_copy_from_user);
 EXPORT_SYMBOL(csum_partial_copy_nocheck);
 EXPORT_SYMBOL(__csum_ipv6_magic);
 
diff --git a/arch/arm/kernel/cpuidle.c b/arch/arm/kernel/cpuidle.c
index 703926e..39aa432 100644
--- a/arch/arm/kernel/cpuidle.c
+++ b/arch/arm/kernel/cpuidle.c
@@ -19,7 +19,7 @@ extern struct of_cpuidle_method __cpuidle_method_of_table[];
 static const struct of_cpuidle_method __cpuidle_method_of_table_sentinel
 	__used __section(__cpuidle_method_of_table_end);
 
-static struct cpuidle_ops cpuidle_ops[NR_CPUS];
+static struct cpuidle_ops cpuidle_ops[NR_CPUS] __read_only;
 
 /**
  * arm_cpuidle_simple_enter() - a wrapper to cpu_do_idle()
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index e255050..51e1b59 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -50,6 +50,87 @@
 9997:
 	.endm
 
+	.macro	pax_enter_kernel
+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
+	@ make aligned space for saved DACR
+	sub	sp, sp, #8
+	@ save regs
+	stmdb	sp!, {r1, r2}
+	@ read DACR from cpu_domain into r1
+	mov	r2, sp
+	@ assume 8K pages, since we have to split the immediate in two
+	bic	r2, r2, #(0x1fc0)
+	bic	r2, r2, #(0x3f)
+	ldr	r1, [r2, #TI_CPU_DOMAIN]
+	@ store old DACR on stack
+	str	r1, [sp, #8]
+#ifdef CONFIG_PAX_KERNEXEC
+	@ set type of DOMAIN_KERNEL to DOMAIN_KERNELCLIENT
+	bic	r1, r1, #(domain_val(DOMAIN_KERNEL, 3))
+	orr	r1, r1, #(domain_val(DOMAIN_KERNEL, DOMAIN_KERNELCLIENT))
+#endif
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	@ set current DOMAIN_USER to DOMAIN_NOACCESS
+	bic	r1, r1, #(domain_val(DOMAIN_USER, 3))
+#endif
+	@ write r1 to current_thread_info()->cpu_domain
+	str	r1, [r2, #TI_CPU_DOMAIN]
+	@ write r1 to DACR
+	mcr	p15, 0, r1, c3, c0, 0
+	@ instruction sync
+	instr_sync
+	@ restore regs
+	ldmia	sp!, {r1, r2}
+#endif
+	.endm
+
+	.macro	pax_open_userland
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	@ save regs
+	stmdb	sp!, {r0, r1}
+	@ read DACR from cpu_domain into r1
+	mov	r0, sp
+	@ assume 8K pages, since we have to split the immediate in two
+	bic	r0, r0, #(0x1fc0)
+	bic	r0, r0, #(0x3f)
+	ldr	r1, [r0, #TI_CPU_DOMAIN]
+	@ set current DOMAIN_USER to DOMAIN_CLIENT
+	bic	r1, r1, #(domain_val(DOMAIN_USER, 3))
+	orr	r1, r1, #(domain_val(DOMAIN_USER, DOMAIN_UDEREF))
+	@ write r1 to current_thread_info()->cpu_domain
+	str	r1, [r0, #TI_CPU_DOMAIN]
+	@ write r1 to DACR
+	mcr	p15, 0, r1, c3, c0, 0
+	@ instruction sync
+	instr_sync
+	@ restore regs
+	ldmia	sp!, {r0, r1}
+#endif
+	.endm
+
+	.macro	pax_close_userland
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	@ save regs
+	stmdb	sp!, {r0, r1}
+	@ read DACR from cpu_domain into r1
+	mov	r0, sp
+	@ assume 8K pages, since we have to split the immediate in two
+	bic	r0, r0, #(0x1fc0)
+	bic	r0, r0, #(0x3f)
+	ldr	r1, [r0, #TI_CPU_DOMAIN]
+	@ set current DOMAIN_USER to DOMAIN_NOACCESS
+	bic	r1, r1, #(domain_val(DOMAIN_USER, 3))
+	@ write r1 to current_thread_info()->cpu_domain
+	str	r1, [r0, #TI_CPU_DOMAIN]
+	@ write r1 to DACR
+	mcr	p15, 0, r1, c3, c0, 0
+	@ instruction sync
+	instr_sync
+	@ restore regs
+	ldmia	sp!, {r0, r1}
+#endif
+	.endm
+
 	.macro	pabt_helper
 	@ PABORT handler takes pt_regs in r2, fault address in r4 and psr in r5
 #ifdef MULTI_PABORT
@@ -92,11 +173,15 @@
  * Invalid mode handlers
  */
 	.macro	inv_entry, reason
+
+	pax_enter_kernel
+
 	sub	sp, sp, #S_FRAME_SIZE
  ARM(	stmib	sp, {r1 - lr}		)
  THUMB(	stmia	sp, {r0 - r12}		)
  THUMB(	str	sp, [sp, #S_SP]		)
  THUMB(	str	lr, [sp, #S_LR]		)
+
 	mov	r1, #\reason
 	.endm
 
@@ -152,6 +237,9 @@ ENDPROC(__und_invalid)
 	.macro	svc_entry, stack_hole=0, trace=1, uaccess=1
  UNWIND(.fnstart		)
  UNWIND(.save {r0 - pc}		)
+
+	pax_enter_kernel
+
 	sub	sp, sp, #(S_FRAME_SIZE + 8 + \stack_hole - 4)
 #ifdef CONFIG_THUMB2_KERNEL
  SPFIX(	str	r0, [sp]	)	@ temporarily saved
@@ -167,7 +255,12 @@ ENDPROC(__und_invalid)
 	ldmia	r0, {r3 - r5}
 	add	r7, sp, #S_SP - 4	@ here for interlock avoidance
 	mov	r6, #-1			@  ""  ""      ""       ""
+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
+	@ offset sp by 8 as done in pax_enter_kernel
+	add	r2, sp, #(S_FRAME_SIZE + 8 + \stack_hole + 4)
+#else
 	add	r2, sp, #(S_FRAME_SIZE + 8 + \stack_hole - 4)
+#endif
  SPFIX(	addeq	r2, r2, #4	)
 	str	r3, [sp, #-4]!		@ save the "real" r0 copied
 					@ from the exception stack
@@ -376,6 +469,9 @@ ENDPROC(__fiq_abt)
 	.macro	usr_entry, trace=1, uaccess=1
  UNWIND(.fnstart	)
  UNWIND(.cantunwind	)	@ don't unwind the user space
+
+	pax_enter_kernel_user
+
 	sub	sp, sp, #S_FRAME_SIZE
  ARM(	stmib	sp, {r1 - r12}	)
  THUMB(	stmia	sp, {r0 - r12}	)
@@ -489,7 +585,9 @@ __und_usr:
 	tst	r3, #PSR_T_BIT			@ Thumb mode?
 	bne	__und_usr_thumb
 	sub	r4, r2, #4			@ ARM instr at LR - 4
+	pax_open_userland
 1:	ldrt	r0, [r4]
+	pax_close_userland
  ARM_BE8(rev	r0, r0)				@ little endian instruction
 
 	uaccess_disable ip
@@ -525,11 +623,15 @@ __und_usr_thumb:
  */
 	.arch	armv6t2
 #endif
+	pax_open_userland
 2:	ldrht	r5, [r4]
+	pax_close_userland
 ARM_BE8(rev16	r5, r5)				@ little endian instruction
 	cmp	r5, #0xe800			@ 32bit instruction if xx != 0
 	blo	__und_usr_fault_16_pan		@ 16bit undefined instruction
+	pax_open_userland
 3:	ldrht	r0, [r2]
+	pax_close_userland
 ARM_BE8(rev16	r0, r0)				@ little endian instruction
 	uaccess_disable ip
 	add	r2, r2, #2			@ r2 is PC + 2, make it PC + 4
@@ -560,7 +662,8 @@ ENDPROC(__und_usr)
  */
 	.pushsection .text.fixup, "ax"
 	.align	2
-4:	str     r4, [sp, #S_PC]			@ retry current instruction
+4:	pax_close_userland
+	str     r4, [sp, #S_PC]			@ retry current instruction
 	ret	r9
 	.popsection
 	.pushsection __ex_table,"a"
@@ -782,7 +885,7 @@ ENTRY(__switch_to)
  THUMB(	str	lr, [ip], #4		   )
 	ldr	r4, [r2, #TI_TP_VALUE]
 	ldr	r5, [r2, #TI_TP_VALUE + 4]
-#ifdef CONFIG_CPU_USE_DOMAINS
+#if defined(CONFIG_CPU_USE_DOMAINS) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
 	mrc	p15, 0, r6, c3, c0, 0		@ Get domain register
 	str	r6, [r1, #TI_CPU_DOMAIN]	@ Save old domain register
 	ldr	r6, [r2, #TI_CPU_DOMAIN]
@@ -793,7 +896,7 @@ ENTRY(__switch_to)
 	ldr	r8, =__stack_chk_guard
 	ldr	r7, [r7, #TSK_STACK_CANARY]
 #endif
-#ifdef CONFIG_CPU_USE_DOMAINS
+#if defined(CONFIG_CPU_USE_DOMAINS) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
 	mcr	p15, 0, r6, c3, c0, 0		@ Set domain register
 #endif
 	mov	r5, r0
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index 30a7228..d071196 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -11,18 +11,46 @@
 #include <asm/assembler.h>
 #include <asm/unistd.h>
 #include <asm/ftrace.h>
+#include <asm/domain.h>
 #include <asm/unwind.h>
 
+#include "entry-header.S"
+
 #ifdef CONFIG_NEED_RET_TO_USER
 #include <mach/entry-macro.S>
 #else
 	.macro  arch_ret_to_user, tmp1, tmp2
+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
+	@ save regs
+	stmdb	sp!, {r1, r2}
+	@ read DACR from cpu_domain into r1
+	mov     r2, sp
+	@ assume 8K pages, since we have to split the immediate in two
+	bic     r2, r2, #(0x1fc0)
+	bic     r2, r2, #(0x3f)
+	ldr     r1, [r2, #TI_CPU_DOMAIN]
+#ifdef CONFIG_PAX_KERNEXEC
+	@ set type of DOMAIN_KERNEL to DOMAIN_KERNELCLIENT
+	bic     r1, r1, #(domain_val(DOMAIN_KERNEL, 3))
+	orr     r1, r1, #(domain_val(DOMAIN_KERNEL, DOMAIN_KERNELCLIENT))
+#endif
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	@ set current DOMAIN_USER to DOMAIN_UDEREF
+	bic     r1, r1, #(domain_val(DOMAIN_USER, 3))
+	orr     r1, r1, #(domain_val(DOMAIN_USER, DOMAIN_UDEREF))
+#endif
+	@ write r1 to current_thread_info()->cpu_domain
+	str     r1, [r2, #TI_CPU_DOMAIN]
+	@ write r1 to DACR
+	mcr     p15, 0, r1, c3, c0, 0
+	@ instruction sync
+	instr_sync
+	@ restore regs
+	ldmia	sp!, {r1, r2}
+#endif
 	.endm
 #endif
 
-#include "entry-header.S"
-
-
 	.align	5
 #if !(IS_ENABLED(CONFIG_TRACE_IRQFLAGS) || IS_ENABLED(CONFIG_CONTEXT_TRACKING))
 /*
@@ -36,7 +64,9 @@ ret_fast_syscall:
  UNWIND(.cantunwind	)
 	disable_irq_notrace			@ disable interrupts
 	ldr	r1, [tsk, #TI_FLAGS]		@ re-check for syscall tracing
-	tst	r1, #_TIF_SYSCALL_WORK | _TIF_WORK_MASK
+	tst	r1, #_TIF_SYSCALL_WORK
+	bne	fast_work_pending
+	tst	r1, #_TIF_WORK_MASK
 	bne	fast_work_pending
 
 	/* perform architecture specific actions before user return */
@@ -62,7 +92,9 @@ ret_fast_syscall:
 	str	r0, [sp, #S_R0 + S_OFF]!	@ save returned r0
 	disable_irq_notrace			@ disable interrupts
 	ldr	r1, [tsk, #TI_FLAGS]		@ re-check for syscall tracing
-	tst	r1, #_TIF_SYSCALL_WORK | _TIF_WORK_MASK
+	tst	r1, #_TIF_SYSCALL_WORK
+	bne	__sys_trace_return_nosave
+	tst	r1, #_TIF_WORK_MASK
 	beq	no_work_pending
  UNWIND(.fnend		)
 ENDPROC(ret_fast_syscall)
@@ -199,6 +231,12 @@ ENTRY(vector_swi)
 
 	uaccess_disable tbl
 
+	/*
+	 * do this here to avoid a performance hit of wrapping the code above
+	 * that directly dereferences userland to parse the SWI instruction
+	 */
+	pax_enter_kernel_user
+
 	adr	tbl, sys_call_table		@ load syscall table pointer
 
 #if defined(CONFIG_OABI_COMPAT)
diff --git a/arch/arm/kernel/entry-header.S b/arch/arm/kernel/entry-header.S
index 0d22ad2..d776aa0 100644
--- a/arch/arm/kernel/entry-header.S
+++ b/arch/arm/kernel/entry-header.S
@@ -196,6 +196,59 @@
 	msr	cpsr_c, \rtemp			@ switch back to the SVC mode
 	.endm
 
+	.macro	pax_enter_kernel_user
+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
+	@ save regs
+	stmdb	sp!, {r0, r1}
+	@ read DACR from cpu_domain into r1
+	mov	r0, sp
+	@ assume 8K pages, since we have to split the immediate in two
+	bic	r0, r0, #(0x1fc0)
+	bic	r0, r0, #(0x3f)
+	ldr	r1, [r0, #TI_CPU_DOMAIN]
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	@ set current DOMAIN_USER to DOMAIN_NOACCESS
+	bic	r1, r1, #(domain_val(DOMAIN_USER, 3))
+#endif
+#ifdef CONFIG_PAX_KERNEXEC
+	@ set current DOMAIN_KERNEL to DOMAIN_KERNELCLIENT
+	bic	r1, r1, #(domain_val(DOMAIN_KERNEL, 3))
+	orr	r1, r1, #(domain_val(DOMAIN_KERNEL, DOMAIN_KERNELCLIENT))
+#endif
+	@ write r1 to current_thread_info()->cpu_domain
+	str	r1, [r0, #TI_CPU_DOMAIN]
+	@ write r1 to DACR
+	mcr	p15, 0, r1, c3, c0, 0
+	@ instruction sync
+	instr_sync
+	@ restore regs
+	ldmia	sp!, {r0, r1}
+#endif
+	.endm
+
+	.macro  pax_exit_kernel
+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
+	@ save regs
+	stmdb	sp!, {r0, r1}
+	@ read old DACR from stack into r1
+	ldr	r1, [sp, #(8 + S_SP)]
+	sub	r1, r1, #8
+	ldr	r1, [r1]
+
+	@ write r1 to current_thread_info()->cpu_domain
+	mov	r0, sp
+	@ assume 8K pages, since we have to split the immediate in two
+	bic	r0, r0, #(0x1fc0)
+	bic	r0, r0, #(0x3f)
+	str	r1, [r0, #TI_CPU_DOMAIN]
+	@ write r1 to DACR
+	mcr	p15, 0, r1, c3, c0, 0
+	@ instruction sync
+	instr_sync
+	@ restore regs
+	ldmia	sp!, {r0, r1}
+#endif
+	.endm
 
 	.macro	svc_exit, rpsr, irq = 0
 	.if	\irq != 0
@@ -217,6 +270,8 @@
 	.endif
 	uaccess_restore
 
+	pax_exit_kernel
+
 #ifndef CONFIG_THUMB2_KERNEL
 	@ ARM mode SVC restore
 	msr	spsr_cxsf, \rpsr
diff --git a/arch/arm/kernel/fiq.c b/arch/arm/kernel/fiq.c
index 059c3da..8e45cfc 100644
--- a/arch/arm/kernel/fiq.c
+++ b/arch/arm/kernel/fiq.c
@@ -95,7 +95,10 @@ void set_fiq_handler(void *start, unsigned int length)
 	void *base = vectors_page;
 	unsigned offset = FIQ_OFFSET;
 
+	pax_open_kernel();
 	memcpy(base + offset, start, length);
+	pax_close_kernel();
+
 	if (!cache_is_vipt_nonaliasing())
 		flush_icache_range((unsigned long)base + offset, offset +
 				   length);
diff --git a/arch/arm/kernel/module-plts.c b/arch/arm/kernel/module-plts.c
index 0c7efc3..3927085 100644
--- a/arch/arm/kernel/module-plts.c
+++ b/arch/arm/kernel/module-plts.c
@@ -30,17 +30,12 @@ struct plt_entries {
 	u32	lit[PLT_ENT_COUNT];
 };
 
-static bool in_init(const struct module *mod, u32 addr)
-{
-	return addr - (u32)mod->init_layout.base < mod->init_layout.size;
-}
-
 u32 get_module_plt(struct module *mod, unsigned long loc, Elf32_Addr val)
 {
 	struct plt_entries *plt, *plt_end;
 	int c, *count;
 
-	if (in_init(mod, loc)) {
+	if (within_module_init(loc, mod)) {
 		plt = (void *)mod->arch.init_plt->sh_addr;
 		plt_end = (void *)plt + mod->arch.init_plt->sh_size;
 		count = &mod->arch.init_plt_count;
diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c
index 4f14b5c..91ff261 100644
--- a/arch/arm/kernel/module.c
+++ b/arch/arm/kernel/module.c
@@ -38,17 +38,47 @@
 #endif
 
 #ifdef CONFIG_MMU
-void *module_alloc(unsigned long size)
+static inline void *__module_alloc(unsigned long size, pgprot_t prot)
 {
-	void *p = __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				GFP_KERNEL, PAGE_KERNEL_EXEC, 0, NUMA_NO_NODE,
+	void *p;
+
+	if (!size || (!IS_ENABLED(CONFIG_ARM_MODULE_PLTS) && PAGE_ALIGN(size) > MODULES_END - MODULES_VADDR))
+		return NULL;
+
+	p = __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
+				GFP_KERNEL, prot, 0, NUMA_NO_NODE,
 				__builtin_return_address(0));
 	if (!IS_ENABLED(CONFIG_ARM_MODULE_PLTS) || p)
 		return p;
 	return __vmalloc_node_range(size, 1,  VMALLOC_START, VMALLOC_END,
-				GFP_KERNEL, PAGE_KERNEL_EXEC, 0, NUMA_NO_NODE,
+				GFP_KERNEL, prot, 0, NUMA_NO_NODE,
 				__builtin_return_address(0));
 }
+
+void *module_alloc(unsigned long size)
+{
+
+#ifdef CONFIG_PAX_KERNEXEC
+	return __module_alloc(size, PAGE_KERNEL);
+#else
+	return __module_alloc(size, PAGE_KERNEL_EXEC);
+#endif
+
+}
+
+#ifdef CONFIG_PAX_KERNEXEC
+void module_memfree_exec(void *module_region)
+{
+	module_memfree(module_region);
+}
+EXPORT_SYMBOL(module_memfree_exec);
+
+void *module_alloc_exec(unsigned long size)
+{
+	return __module_alloc(size, PAGE_KERNEL_EXEC);
+}
+EXPORT_SYMBOL(module_alloc_exec);
+#endif
 #endif
 
 int
diff --git a/arch/arm/kernel/patch.c b/arch/arm/kernel/patch.c
index 69bda1a..755113a 100644
--- a/arch/arm/kernel/patch.c
+++ b/arch/arm/kernel/patch.c
@@ -66,6 +66,7 @@ void __kprobes __patch_text_real(void *addr, unsigned int insn, bool remap)
 	else
 		__acquire(&patch_lock);
 
+	pax_open_kernel();
 	if (thumb2 && __opcode_is_thumb16(insn)) {
 		*(u16 *)waddr = __opcode_to_mem_thumb16(insn);
 		size = sizeof(u16);
@@ -97,6 +98,7 @@ void __kprobes __patch_text_real(void *addr, unsigned int insn, bool remap)
 		*(u32 *)waddr = insn;
 		size = sizeof(u32);
 	}
+	pax_close_kernel();
 
 	if (waddr != addr) {
 		flush_kernel_vmap_range(waddr, twopage ? size / 2 : size);
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 4adfb46..65a3b13 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -114,8 +114,8 @@ void __show_regs(struct pt_regs *regs)
 
 	show_regs_print_info(KERN_DEFAULT);
 
-	print_symbol("PC is at %s\n", instruction_pointer(regs));
-	print_symbol("LR is at %s\n", regs->ARM_lr);
+	printk("PC is at %pA\n", (void *)instruction_pointer(regs));
+	printk("LR is at %pA\n", (void *)regs->ARM_lr);
 	printk("pc : [<%08lx>]    lr : [<%08lx>]    psr: %08lx\n"
 	       "sp : %08lx  ip : %08lx  fp : %08lx\n",
 		regs->ARM_pc, regs->ARM_lr, regs->ARM_cpsr,
@@ -229,7 +229,7 @@ copy_thread(unsigned long clone_flags, unsigned long stack_start,
 
 	memset(&thread->cpu_context, 0, sizeof(struct cpu_context_save));
 
-#ifdef CONFIG_CPU_USE_DOMAINS
+#if defined(CONFIG_CPU_USE_DOMAINS) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
 	/*
 	 * Copy the initial value of the domain access control register
 	 * from the current thread: thread->addr_limit will have been
@@ -333,7 +333,7 @@ static struct vm_area_struct gate_vma = {
 
 static int __init gate_vma_init(void)
 {
-	gate_vma.vm_page_prot = PAGE_READONLY_EXEC;
+	gate_vma.vm_page_prot = vm_get_page_prot(gate_vma.vm_flags);
 	return 0;
 }
 arch_initcall(gate_vma_init);
@@ -362,91 +362,13 @@ const char *arch_vma_name(struct vm_area_struct *vma)
 	return is_gate_vma(vma) ? "[vectors]" : NULL;
 }
 
-/* If possible, provide a placement hint at a random offset from the
- * stack for the sigpage and vdso pages.
- */
-static unsigned long sigpage_addr(const struct mm_struct *mm,
-				  unsigned int npages)
-{
-	unsigned long offset;
-	unsigned long first;
-	unsigned long last;
-	unsigned long addr;
-	unsigned int slots;
-
-	first = PAGE_ALIGN(mm->start_stack);
-
-	last = TASK_SIZE - (npages << PAGE_SHIFT);
-
-	/* No room after stack? */
-	if (first > last)
-		return 0;
-
-	/* Just enough room? */
-	if (first == last)
-		return first;
-
-	slots = ((last - first) >> PAGE_SHIFT) + 1;
-
-	offset = get_random_int() % slots;
-
-	addr = first + (offset << PAGE_SHIFT);
-
-	return addr;
-}
-
-static struct page *signal_page;
-extern struct page *get_signal_page(void);
-
-static const struct vm_special_mapping sigpage_mapping = {
-	.name = "[sigpage]",
-	.pages = &signal_page,
-};
-
 int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 {
 	struct mm_struct *mm = current->mm;
-	struct vm_area_struct *vma;
-	unsigned long npages;
-	unsigned long addr;
-	unsigned long hint;
-	int ret = 0;
-
-	if (!signal_page)
-		signal_page = get_signal_page();
-	if (!signal_page)
-		return -ENOMEM;
-
-	npages = 1; /* for sigpage */
-	npages += vdso_total_pages;
 
 	down_write(&mm->mmap_sem);
-	hint = sigpage_addr(mm, npages);
-	addr = get_unmapped_area(NULL, hint, npages << PAGE_SHIFT, 0, 0);
-	if (IS_ERR_VALUE(addr)) {
-		ret = addr;
-		goto up_fail;
-	}
-
-	vma = _install_special_mapping(mm, addr, PAGE_SIZE,
-		VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC,
-		&sigpage_mapping);
-
-	if (IS_ERR(vma)) {
-		ret = PTR_ERR(vma);
-		goto up_fail;
-	}
-
-	mm->context.sigpage = addr;
-
-	/* Unlike the sigpage, failure to install the vdso is unlikely
-	 * to be fatal to the process, so no error check needed
-	 * here.
-	 */
-	arm_install_vdso(mm, addr + PAGE_SIZE);
-
- up_fail:
+	mm->context.sigpage = (PAGE_OFFSET + (get_random_int() % 0x3FFEFFE0)) & 0xFFFFFFFC;
 	up_write(&mm->mmap_sem);
-	return ret;
+	return 0;
 }
 #endif
diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index 4d93758..c2f471f92 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -928,10 +928,19 @@ static void tracehook_report_syscall(struct pt_regs *regs,
 	regs->ARM_ip = ip;
 }
 
+#ifdef CONFIG_GRKERNSEC_SETXID
+extern void gr_delayed_cred_worker(void);
+#endif
+
 asmlinkage int syscall_trace_enter(struct pt_regs *regs, int scno)
 {
 	current_thread_info()->syscall = scno;
 
+#ifdef CONFIG_GRKERNSEC_SETXID
+	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
+		gr_delayed_cred_worker();
+#endif
+
 	/* Do the secure computing check first; failures should be fast. */
 #ifdef CONFIG_HAVE_ARCH_SECCOMP_FILTER
 	if (secure_computing() == -1)
diff --git a/arch/arm/kernel/reboot.c b/arch/arm/kernel/reboot.c
index 71a2ff9..7753acf 100644
--- a/arch/arm/kernel/reboot.c
+++ b/arch/arm/kernel/reboot.c
@@ -122,6 +122,7 @@ void machine_power_off(void)
 
 	if (pm_power_off)
 		pm_power_off();
+	while (1);
 }
 
 /*
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 2c4bea3..3f5625e 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -113,21 +113,23 @@ EXPORT_SYMBOL(elf_hwcap);
 unsigned int elf_hwcap2 __read_mostly;
 EXPORT_SYMBOL(elf_hwcap2);
 
+pteval_t __supported_pte_mask __read_only;
+pmdval_t __supported_pmd_mask __read_only;
 
 #ifdef MULTI_CPU
-struct processor processor __read_mostly;
+struct processor processor __read_only;
 #endif
 #ifdef MULTI_TLB
-struct cpu_tlb_fns cpu_tlb __read_mostly;
+struct cpu_tlb_fns cpu_tlb __read_only;
 #endif
 #ifdef MULTI_USER
-struct cpu_user_fns cpu_user __read_mostly;
+struct cpu_user_fns cpu_user __read_only;
 #endif
 #ifdef MULTI_CACHE
-struct cpu_cache_fns cpu_cache __read_mostly;
+struct cpu_cache_fns cpu_cache __read_only;
 #endif
 #ifdef CONFIG_OUTER_CACHE
-struct outer_cache_fns outer_cache __read_mostly;
+struct outer_cache_fns outer_cache __read_only;
 EXPORT_SYMBOL(outer_cache);
 #endif
 
@@ -258,9 +260,13 @@ static int __get_cpu_architecture(void)
 		 * Register 0 and check for VMSAv7 or PMSAv7 */
 		unsigned int mmfr0 = read_cpuid_ext(CPUID_EXT_MMFR0);
 		if ((mmfr0 & 0x0000000f) >= 0x00000003 ||
-		    (mmfr0 & 0x000000f0) >= 0x00000030)
+		    (mmfr0 & 0x000000f0) >= 0x00000030) {
 			cpu_arch = CPU_ARCH_ARMv7;
-		else if ((mmfr0 & 0x0000000f) == 0x00000002 ||
+			if ((mmfr0 & 0x0000000f) == 0x00000005 || (mmfr0 & 0x0000000f) == 0x00000004) {
+				__supported_pte_mask |= L_PTE_PXN;
+				__supported_pmd_mask |= PMD_PXNTABLE;
+			}
+		} else if ((mmfr0 & 0x0000000f) == 0x00000002 ||
 			 (mmfr0 & 0x000000f0) == 0x00000020)
 			cpu_arch = CPU_ARCH_ARMv6;
 		else
diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index 7b8f214..ece8e28 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -24,8 +24,6 @@
 
 extern const unsigned long sigreturn_codes[7];
 
-static unsigned long signal_return_offset;
-
 #ifdef CONFIG_CRUNCH
 static int preserve_crunch_context(struct crunch_sigframe __user *frame)
 {
@@ -388,8 +386,7 @@ setup_return(struct pt_regs *regs, struct ksignal *ksig,
 			 * except when the MPU has protected the vectors
 			 * page from PL0
 			 */
-			retcode = mm->context.sigpage + signal_return_offset +
-				  (idx << 2) + thumb;
+			retcode = mm->context.sigpage + (idx << 2) + thumb;
 		} else
 #endif
 		{
@@ -601,33 +598,3 @@ do_work_pending(struct pt_regs *regs, unsigned int thread_flags, int syscall)
 	} while (thread_flags & _TIF_WORK_MASK);
 	return 0;
 }
-
-struct page *get_signal_page(void)
-{
-	unsigned long ptr;
-	unsigned offset;
-	struct page *page;
-	void *addr;
-
-	page = alloc_pages(GFP_KERNEL, 0);
-
-	if (!page)
-		return NULL;
-
-	addr = page_address(page);
-
-	/* Give the signal return code some randomness */
-	offset = 0x200 + (get_random_int() & 0x7fc);
-	signal_return_offset = offset;
-
-	/*
-	 * Copy signal return handlers into the vector page, and
-	 * set sigreturn to be a pointer to these.
-	 */
-	memcpy(addr + offset, sigreturn_codes, sizeof(sigreturn_codes));
-
-	ptr = (unsigned long)addr + offset;
-	flush_icache_range(ptr, ptr + sizeof(sigreturn_codes));
-
-	return page;
-}
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index baee702..49e7294 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -82,7 +82,7 @@ enum ipi_msg_type {
 
 static DECLARE_COMPLETION(cpu_running);
 
-static struct smp_operations smp_ops;
+static struct smp_operations smp_ops __read_only;
 
 void __init smp_set_ops(const struct smp_operations *ops)
 {
diff --git a/arch/arm/kernel/tcm.c b/arch/arm/kernel/tcm.c
index b10e136..cb5edf9 100644
--- a/arch/arm/kernel/tcm.c
+++ b/arch/arm/kernel/tcm.c
@@ -64,7 +64,7 @@ static struct map_desc itcm_iomap[] __initdata = {
 		.virtual	= ITCM_OFFSET,
 		.pfn		= __phys_to_pfn(ITCM_OFFSET),
 		.length		= 0,
-		.type		= MT_MEMORY_RWX_ITCM,
+		.type		= MT_MEMORY_RX_ITCM,
 	}
 };
 
@@ -362,7 +362,9 @@ no_dtcm:
 		start = &__sitcm_text;
 		end   = &__eitcm_text;
 		ram   = &__itcm_start;
+		pax_open_kernel();
 		memcpy(start, ram, itcm_code_sz);
+		pax_close_kernel();
 		pr_debug("CPU ITCM: copied code from %p - %p\n",
 			 start, end);
 		itcm_present = true;
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index bc69838..e5dfdd4 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -65,7 +65,7 @@ static void dump_mem(const char *, const char *, unsigned long, unsigned long);
 void dump_backtrace_entry(unsigned long where, unsigned long from, unsigned long frame)
 {
 #ifdef CONFIG_KALLSYMS
-	printk("[<%08lx>] (%ps) from [<%08lx>] (%pS)\n", where, (void *)where, from, (void *)from);
+	printk("[<%08lx>] (%pA) from [<%08lx>] (%pA)\n", where, (void *)where, from, (void *)from);
 #else
 	printk("Function entered at [<%08lx>] from [<%08lx>]\n", where, from);
 #endif
@@ -267,6 +267,8 @@ static arch_spinlock_t die_lock = __ARCH_SPIN_LOCK_UNLOCKED;
 static int die_owner = -1;
 static unsigned int die_nest_count;
 
+extern void gr_handle_kernel_exploit(void);
+
 static unsigned long oops_begin(void)
 {
 	int cpu;
@@ -309,6 +311,9 @@ static void oops_end(unsigned long flags, struct pt_regs *regs, int signr)
 		panic("Fatal exception in interrupt");
 	if (panic_on_oops)
 		panic("Fatal exception");
+
+	gr_handle_kernel_exploit();
+
 	if (signr)
 		do_exit(signr);
 }
diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
index e2c6da0..6155a88 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -44,7 +44,7 @@
 #endif
 
 #if (defined(CONFIG_SMP_ON_UP) && !defined(CONFIG_DEBUG_SPINLOCK)) || \
-	defined(CONFIG_GENERIC_BUG)
+	defined(CONFIG_GENERIC_BUG) || defined(CONFIG_PAX_REFCOUNT)
 #define ARM_EXIT_KEEP(x)	x
 #define ARM_EXIT_DISCARD(x)
 #else
@@ -125,6 +125,8 @@ SECTIONS
 #ifdef CONFIG_DEBUG_ALIGN_RODATA
 	. = ALIGN(1<<SECTION_SHIFT);
 #endif
+	_etext = .;			/* End of text section */
+
 	RO_DATA(PAGE_SIZE)
 
 	. = ALIGN(4);
@@ -155,8 +157,6 @@ SECTIONS
 
 	NOTES
 
-	_etext = .;			/* End of text and rodata section */
-
 #ifdef CONFIG_DEBUG_RODATA
 	. = ALIGN(1<<SECTION_SHIFT);
 #else
diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
index dded1b7..6fa4373 100644
--- a/arch/arm/kvm/arm.c
+++ b/arch/arm/kvm/arm.c
@@ -59,7 +59,7 @@ static unsigned long hyp_default_vectors;
 static DEFINE_PER_CPU(struct kvm_vcpu *, kvm_arm_running_vcpu);
 
 /* The VMID used in the VTTBR */
-static atomic64_t kvm_vmid_gen = ATOMIC64_INIT(1);
+static atomic64_unchecked_t kvm_vmid_gen = ATOMIC64_INIT(1);
 static u32 kvm_next_vmid;
 static unsigned int kvm_vmid_bits __read_mostly;
 static DEFINE_SPINLOCK(kvm_vmid_lock);
@@ -392,7 +392,7 @@ void force_vm_exit(const cpumask_t *mask)
  */
 static bool need_new_vmid_gen(struct kvm *kvm)
 {
-	return unlikely(kvm->arch.vmid_gen != atomic64_read(&kvm_vmid_gen));
+	return unlikely(kvm->arch.vmid_gen != atomic64_read_unchecked(&kvm_vmid_gen));
 }
 
 /**
@@ -425,7 +425,7 @@ static void update_vttbr(struct kvm *kvm)
 
 	/* First user of a new VMID generation? */
 	if (unlikely(kvm_next_vmid == 0)) {
-		atomic64_inc(&kvm_vmid_gen);
+		atomic64_inc_unchecked(&kvm_vmid_gen);
 		kvm_next_vmid = 1;
 
 		/*
@@ -442,7 +442,7 @@ static void update_vttbr(struct kvm *kvm)
 		kvm_call_hyp(__kvm_flush_vm_context);
 	}
 
-	kvm->arch.vmid_gen = atomic64_read(&kvm_vmid_gen);
+	kvm->arch.vmid_gen = atomic64_read_unchecked(&kvm_vmid_gen);
 	kvm->arch.vmid = kvm_next_vmid;
 	kvm_next_vmid++;
 	kvm_next_vmid &= (1 << kvm_vmid_bits) - 1;
diff --git a/arch/arm/lib/copy_page.S b/arch/arm/lib/copy_page.S
index 6ee2f67..d1cce76 100644
--- a/arch/arm/lib/copy_page.S
+++ b/arch/arm/lib/copy_page.S
@@ -10,6 +10,7 @@
  *  ASM optimised string functions
  */
 #include <linux/linkage.h>
+#include <linux/const.h>
 #include <asm/assembler.h>
 #include <asm/asm-offsets.h>
 #include <asm/cache.h>
diff --git a/arch/arm/lib/csumpartialcopyuser.S b/arch/arm/lib/csumpartialcopyuser.S
index 1712f13..a3165dc 100644
--- a/arch/arm/lib/csumpartialcopyuser.S
+++ b/arch/arm/lib/csumpartialcopyuser.S
@@ -71,8 +71,8 @@
  *  Returns : r0 = checksum, [[sp, #0], #0] = 0 or -EFAULT
  */
 
-#define FN_ENTRY	ENTRY(csum_partial_copy_from_user)
-#define FN_EXIT		ENDPROC(csum_partial_copy_from_user)
+#define FN_ENTRY	ENTRY(__csum_partial_copy_from_user)
+#define FN_EXIT		ENDPROC(__csum_partial_copy_from_user)
 
 #include "csumpartialcopygeneric.S"
 
diff --git a/arch/arm/lib/delay.c b/arch/arm/lib/delay.c
index 8044591..c9b2609 100644
--- a/arch/arm/lib/delay.c
+++ b/arch/arm/lib/delay.c
@@ -29,7 +29,7 @@
 /*
  * Default to the loop-based delay implementation.
  */
-struct arm_delay_ops arm_delay_ops = {
+struct arm_delay_ops arm_delay_ops __read_only = {
 	.delay		= __loop_delay,
 	.const_udelay	= __loop_const_udelay,
 	.udelay		= __loop_udelay,
diff --git a/arch/arm/lib/uaccess_with_memcpy.c b/arch/arm/lib/uaccess_with_memcpy.c
index 6bd1089..e999400 100644
--- a/arch/arm/lib/uaccess_with_memcpy.c
+++ b/arch/arm/lib/uaccess_with_memcpy.c
@@ -84,7 +84,7 @@ pin_page_for_write(const void __user *_addr, pte_t **ptep, spinlock_t **ptlp)
 	return 1;
 }
 
-static unsigned long noinline
+static unsigned long noinline __size_overflow(3)
 __copy_to_user_memcpy(void __user *to, const void *from, unsigned long n)
 {
 	unsigned long ua_flags;
@@ -157,7 +157,7 @@ arm_copy_to_user(void __user *to, const void *from, unsigned long n)
 	return n;
 }
 	
-static unsigned long noinline
+static unsigned long noinline __size_overflow(2)
 __clear_user_memset(void __user *addr, unsigned long n)
 {
 	unsigned long ua_flags;
diff --git a/arch/arm/mach-exynos/suspend.c b/arch/arm/mach-exynos/suspend.c
index fee2b00..943ea95 100644
--- a/arch/arm/mach-exynos/suspend.c
+++ b/arch/arm/mach-exynos/suspend.c
@@ -734,8 +734,10 @@ void __init exynos_pm_init(void)
 	tmp |= pm_data->wake_disable_mask;
 	pmu_raw_writel(tmp, S5P_WAKEUP_MASK);
 
-	exynos_pm_syscore_ops.suspend	= pm_data->pm_suspend;
-	exynos_pm_syscore_ops.resume	= pm_data->pm_resume;
+	pax_open_kernel();
+	const_cast(exynos_pm_syscore_ops.suspend)	= pm_data->pm_suspend;
+	const_cast(exynos_pm_syscore_ops.resume)	= pm_data->pm_resume;
+	pax_close_kernel();
 
 	register_syscore_ops(&exynos_pm_syscore_ops);
 	suspend_set_ops(&exynos_suspend_ops);
diff --git a/arch/arm/mach-mmp/mmp2.c b/arch/arm/mach-mmp/mmp2.c
index afba546..9e5403d 100644
--- a/arch/arm/mach-mmp/mmp2.c
+++ b/arch/arm/mach-mmp/mmp2.c
@@ -98,7 +98,9 @@ void __init mmp2_init_irq(void)
 {
 	mmp2_init_icu();
 #ifdef CONFIG_PM
-	icu_irq_chip.irq_set_wake = mmp2_set_wake;
+	pax_open_kernel();
+	const_cast(icu_irq_chip.irq_set_wake) = mmp2_set_wake;
+	pax_close_kernel();
 #endif
 }
 
diff --git a/arch/arm/mach-mmp/pxa910.c b/arch/arm/mach-mmp/pxa910.c
index 1ccbba9..7a95c29 100644
--- a/arch/arm/mach-mmp/pxa910.c
+++ b/arch/arm/mach-mmp/pxa910.c
@@ -84,7 +84,9 @@ void __init pxa910_init_irq(void)
 {
 	icu_init_irq();
 #ifdef CONFIG_PM
-	icu_irq_chip.irq_set_wake = pxa910_set_wake;
+	pax_open_kernel();
+	const_cast(icu_irq_chip.irq_set_wake) = pxa910_set_wake;
+	pax_close_kernel();
 #endif
 }
 
diff --git a/arch/arm/mach-mvebu/coherency.c b/arch/arm/mach-mvebu/coherency.c
index 7e989d6..614bf8b 100644
--- a/arch/arm/mach-mvebu/coherency.c
+++ b/arch/arm/mach-mvebu/coherency.c
@@ -163,7 +163,7 @@ exit:
 
 /*
  * This ioremap hook is used on Armada 375/38x to ensure that PCIe
- * memory areas are mapped as MT_UNCACHED instead of MT_DEVICE. This
+ * memory areas are mapped as MT_UNCACHED_RW instead of MT_DEVICE. This
  * is needed as a workaround for a deadlock issue between the PCIe
  * interface and the cache controller.
  */
@@ -176,7 +176,7 @@ armada_pcie_wa_ioremap_caller(phys_addr_t phys_addr, size_t size,
 	mvebu_mbus_get_pcie_mem_aperture(&pcie_mem);
 
 	if (pcie_mem.start <= phys_addr && (phys_addr + size) <= pcie_mem.end)
-		mtype = MT_UNCACHED;
+		mtype = MT_UNCACHED_RW;
 
 	return __arm_ioremap_caller(phys_addr, size, mtype, caller);
 }
diff --git a/arch/arm/mach-omap2/board-n8x0.c b/arch/arm/mach-omap2/board-n8x0.c
index b6443a4..20a0b74 100644
--- a/arch/arm/mach-omap2/board-n8x0.c
+++ b/arch/arm/mach-omap2/board-n8x0.c
@@ -569,7 +569,7 @@ static int n8x0_menelaus_late_init(struct device *dev)
 }
 #endif
 
-struct menelaus_platform_data n8x0_menelaus_platform_data __initdata = {
+struct menelaus_platform_data n8x0_menelaus_platform_data __initconst = {
 	.late_init = n8x0_menelaus_late_init,
 };
 
diff --git a/arch/arm/mach-omap2/omap-mpuss-lowpower.c b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
index 65024af..70bf184 100644
--- a/arch/arm/mach-omap2/omap-mpuss-lowpower.c
+++ b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
@@ -86,7 +86,7 @@ struct cpu_pm_ops {
 	void (*resume)(void);
 	void (*scu_prepare)(unsigned int cpu_id, unsigned int cpu_state);
 	void (*hotplug_restart)(void);
-};
+} __no_const;
 
 static DEFINE_PER_CPU(struct omap4_cpu_pm_info, omap4_pm_info);
 static struct powerdomain *mpuss_pd;
@@ -105,7 +105,7 @@ static void dummy_cpu_resume(void)
 static void dummy_scu_prepare(unsigned int cpu_id, unsigned int cpu_state)
 {}
 
-static struct cpu_pm_ops omap_pm_ops = {
+static struct cpu_pm_ops omap_pm_ops __read_only = {
 	.finish_suspend		= default_finish_suspend,
 	.resume			= dummy_cpu_resume,
 	.scu_prepare		= dummy_scu_prepare,
diff --git a/arch/arm/mach-omap2/omap-smp.c b/arch/arm/mach-omap2/omap-smp.c
index c625cc1..3f47aae 100644
--- a/arch/arm/mach-omap2/omap-smp.c
+++ b/arch/arm/mach-omap2/omap-smp.c
@@ -19,6 +19,7 @@
 #include <linux/device.h>
 #include <linux/smp.h>
 #include <linux/io.h>
+#include <linux/irq.h>
 #include <linux/irqchip/arm-gic.h>
 
 #include <asm/smp_scu.h>
diff --git a/arch/arm/mach-omap2/omap_device.c b/arch/arm/mach-omap2/omap_device.c
index f7ff3b9..e6d5420 100644
--- a/arch/arm/mach-omap2/omap_device.c
+++ b/arch/arm/mach-omap2/omap_device.c
@@ -515,7 +515,7 @@ void omap_device_delete(struct omap_device *od)
 struct platform_device __init *omap_device_build(const char *pdev_name,
 						 int pdev_id,
 						 struct omap_hwmod *oh,
-						 void *pdata, int pdata_len)
+						 const void *pdata, int pdata_len)
 {
 	struct omap_hwmod *ohs[] = { oh };
 
@@ -543,7 +543,7 @@ struct platform_device __init *omap_device_build(const char *pdev_name,
 struct platform_device __init *omap_device_build_ss(const char *pdev_name,
 						    int pdev_id,
 						    struct omap_hwmod **ohs,
-						    int oh_cnt, void *pdata,
+						    int oh_cnt, const void *pdata,
 						    int pdata_len)
 {
 	int ret = -ENOMEM;
diff --git a/arch/arm/mach-omap2/omap_device.h b/arch/arm/mach-omap2/omap_device.h
index 78c02b3..c94109a 100644
--- a/arch/arm/mach-omap2/omap_device.h
+++ b/arch/arm/mach-omap2/omap_device.h
@@ -72,12 +72,12 @@ int omap_device_idle(struct platform_device *pdev);
 /* Core code interface */
 
 struct platform_device *omap_device_build(const char *pdev_name, int pdev_id,
-					  struct omap_hwmod *oh, void *pdata,
+					  struct omap_hwmod *oh, const void *pdata,
 					  int pdata_len);
 
 struct platform_device *omap_device_build_ss(const char *pdev_name, int pdev_id,
 					 struct omap_hwmod **oh, int oh_cnt,
-					 void *pdata, int pdata_len);
+					 const void *pdata, int pdata_len);
 
 struct omap_device *omap_device_alloc(struct platform_device *pdev,
 				      struct omap_hwmod **ohs, int oh_cnt);
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 2af6ff6..1f2959f 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -200,10 +200,10 @@ struct omap_hwmod_soc_ops {
 	int (*init_clkdm)(struct omap_hwmod *oh);
 	void (*update_context_lost)(struct omap_hwmod *oh);
 	int (*get_context_lost)(struct omap_hwmod *oh);
-};
+} __no_const;
 
 /* soc_ops: adapts the omap_hwmod code to the currently-booted SoC */
-static struct omap_hwmod_soc_ops soc_ops;
+static struct omap_hwmod_soc_ops soc_ops __read_only;
 
 /* omap_hwmod_list contains all registered struct omap_hwmods */
 static LIST_HEAD(omap_hwmod_list);
diff --git a/arch/arm/mach-omap2/powerdomains43xx_data.c b/arch/arm/mach-omap2/powerdomains43xx_data.c
index 95fee54..b5dd79d 100644
--- a/arch/arm/mach-omap2/powerdomains43xx_data.c
+++ b/arch/arm/mach-omap2/powerdomains43xx_data.c
@@ -10,6 +10,7 @@
 
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <asm/pgtable.h>
 
 #include "powerdomain.h"
 
@@ -129,7 +130,9 @@ static int am43xx_check_vcvp(void)
 
 void __init am43xx_powerdomains_init(void)
 {
-	omap4_pwrdm_operations.pwrdm_has_voltdm = am43xx_check_vcvp;
+	pax_open_kernel();
+	const_cast(omap4_pwrdm_operations.pwrdm_has_voltdm) = am43xx_check_vcvp;
+	pax_close_kernel();
 	pwrdm_register_platform_funcs(&omap4_pwrdm_operations);
 	pwrdm_register_pwrdms(powerdomains_am43xx);
 	pwrdm_complete_init();
diff --git a/arch/arm/mach-omap2/wd_timer.c b/arch/arm/mach-omap2/wd_timer.c
index ff0a68c..b312aa0 100644
--- a/arch/arm/mach-omap2/wd_timer.c
+++ b/arch/arm/mach-omap2/wd_timer.c
@@ -110,7 +110,9 @@ static int __init omap_init_wdt(void)
 	struct omap_hwmod *oh;
 	char *oh_name = "wd_timer2";
 	char *dev_name = "omap_wdt";
-	struct omap_wd_timer_platform_data pdata;
+	static struct omap_wd_timer_platform_data pdata = {
+		.read_reset_sources = prm_read_reset_sources
+	};
 
 	if (!cpu_class_is_omap2() || of_have_populated_dt())
 		return 0;
@@ -121,8 +123,6 @@ static int __init omap_init_wdt(void)
 		return -EINVAL;
 	}
 
-	pdata.read_reset_sources = prm_read_reset_sources;
-
 	pdev = omap_device_build(dev_name, id, oh, &pdata,
 				 sizeof(struct omap_wd_timer_platform_data));
 	WARN(IS_ERR(pdev), "Can't build omap_device for %s:%s.\n",
diff --git a/arch/arm/mach-s3c64xx/mach-smdk6410.c b/arch/arm/mach-s3c64xx/mach-smdk6410.c
index 92ec8c3..3b09472 100644
--- a/arch/arm/mach-s3c64xx/mach-smdk6410.c
+++ b/arch/arm/mach-s3c64xx/mach-smdk6410.c
@@ -240,7 +240,7 @@ static struct platform_device smdk6410_b_pwr_5v = {
 };
 #endif
 
-static struct s3c_ide_platdata smdk6410_ide_pdata __initdata = {
+static const struct s3c_ide_platdata smdk6410_ide_pdata __initconst = {
 	.setup_gpio	= s3c64xx_ide_setup_gpio,
 };
 
diff --git a/arch/arm/mach-shmobile/platsmp-apmu.c b/arch/arm/mach-shmobile/platsmp-apmu.c
index aba75c8..b2b340f 100644
--- a/arch/arm/mach-shmobile/platsmp-apmu.c
+++ b/arch/arm/mach-shmobile/platsmp-apmu.c
@@ -22,6 +22,7 @@
 #include <asm/proc-fns.h>
 #include <asm/smp_plat.h>
 #include <asm/suspend.h>
+#include <asm/pgtable.h>
 #include "common.h"
 #include "platsmp-apmu.h"
 
@@ -232,6 +233,8 @@ static int shmobile_smp_apmu_enter_suspend(suspend_state_t state)
 
 void __init shmobile_smp_apmu_suspend_init(void)
 {
-	shmobile_suspend_ops.enter = shmobile_smp_apmu_enter_suspend;
+	pax_open_kernel();
+	const_cast(shmobile_suspend_ops.enter) = shmobile_smp_apmu_enter_suspend;
+	pax_close_kernel();
 }
 #endif
diff --git a/arch/arm/mach-tegra/cpuidle-tegra20.c b/arch/arm/mach-tegra/cpuidle-tegra20.c
index 7469347..1ecc350 100644
--- a/arch/arm/mach-tegra/cpuidle-tegra20.c
+++ b/arch/arm/mach-tegra/cpuidle-tegra20.c
@@ -177,7 +177,7 @@ static int tegra20_idle_lp2_coupled(struct cpuidle_device *dev,
 	bool entered_lp2 = false;
 
 	if (tegra_pending_sgi())
-		ACCESS_ONCE(abort_flag) = true;
+		ACCESS_ONCE_RW(abort_flag) = true;
 
 	cpuidle_coupled_parallel_barrier(dev, &abort_barrier);
 
diff --git a/arch/arm/mach-tegra/irq.c b/arch/arm/mach-tegra/irq.c
index 3b9098d..15b390f 100644
--- a/arch/arm/mach-tegra/irq.c
+++ b/arch/arm/mach-tegra/irq.c
@@ -20,6 +20,7 @@
 #include <linux/cpu_pm.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
+#include <linux/irq.h>
 #include <linux/irqchip/arm-gic.h>
 #include <linux/irq.h>
 #include <linux/kernel.h>
diff --git a/arch/arm/mach-ux500/pm.c b/arch/arm/mach-ux500/pm.c
index 8538910..2f39bc4 100644
--- a/arch/arm/mach-ux500/pm.c
+++ b/arch/arm/mach-ux500/pm.c
@@ -10,6 +10,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/irq.h>
 #include <linux/irqchip/arm-gic.h>
 #include <linux/delay.h>
 #include <linux/io.h>
diff --git a/arch/arm/mach-zynq/platsmp.c b/arch/arm/mach-zynq/platsmp.c
index 7cd9865..a00b6ab 100644
--- a/arch/arm/mach-zynq/platsmp.c
+++ b/arch/arm/mach-zynq/platsmp.c
@@ -24,6 +24,7 @@
 #include <linux/io.h>
 #include <asm/cacheflush.h>
 #include <asm/smp_scu.h>
+#include <linux/irq.h>
 #include <linux/irqchip/arm-gic.h>
 #include "common.h"
 
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 5534766..1ffd12a 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -442,6 +442,7 @@ config CPU_32v5
 
 config CPU_32v6
 	bool
+	select CPU_USE_DOMAINS if CPU_V6 && MMU && !PAX_KERNEXEC && !PAX_MEMORY_UDEREF
 	select TLS_REG_EMUL if !CPU_32v6K && !MMU
 
 config CPU_32v6K
@@ -596,6 +597,7 @@ config CPU_CP15_MPU
 
 config CPU_USE_DOMAINS
 	bool
+	depends on !ARM_LPAE && !PAX_KERNEXEC && !PAX_MEMORY_UDEREF
 	help
 	  This option enables or disables the use of domain switching
 	  via the set_fs() function.
@@ -806,7 +808,7 @@ config NEED_KUSER_HELPERS
 
 config KUSER_HELPERS
 	bool "Enable kuser helpers in vector page" if !NEED_KUSER_HELPERS
-	depends on MMU
+	depends on MMU && (!(CPU_V6 || CPU_V6K || CPU_V7) || GRKERNSEC_OLD_ARM_USERLAND)
 	default y
 	help
 	  Warning: disabling this option may break user programs.
@@ -820,7 +822,7 @@ config KUSER_HELPERS
 	  See Documentation/arm/kernel_user_helpers.txt for details.
 
 	  However, the fixed address nature of these helpers can be used
-	  by ROP (return orientated programming) authors when creating
+	  by ROP (Return Oriented Programming) authors when creating
 	  exploits.
 
 	  If all of the binaries and libraries which run on your platform
@@ -835,7 +837,7 @@ config KUSER_HELPERS
 
 config VDSO
 	bool "Enable VDSO for acceleration of some system calls"
-	depends on AEABI && MMU && CPU_V7
+	depends on AEABI && MMU && CPU_V7 && !PAX_KERNEXEC && !PAX_MEMORY_UDEREF
 	default y if ARM_ARCH_TIMER
 	select GENERIC_TIME_VSYSCALL
 	help
diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c
index 7d5f4c7..c6a0816 100644
--- a/arch/arm/mm/alignment.c
+++ b/arch/arm/mm/alignment.c
@@ -778,6 +778,7 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 	u16 tinstr = 0;
 	int isize = 4;
 	int thumb2_32b = 0;
+	bool is_user_mode = user_mode(regs);
 
 	if (interrupts_enabled(regs))
 		local_irq_enable();
@@ -786,14 +787,24 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 
 	if (thumb_mode(regs)) {
 		u16 *ptr = (u16 *)(instrptr & ~1);
-		fault = probe_kernel_address(ptr, tinstr);
+		if (is_user_mode) {
+			pax_open_userland();
+			fault = probe_kernel_address(ptr, tinstr);
+			pax_close_userland();
+		} else
+			fault = probe_kernel_address(ptr, tinstr);
 		tinstr = __mem_to_opcode_thumb16(tinstr);
 		if (!fault) {
 			if (cpu_architecture() >= CPU_ARCH_ARMv7 &&
 			    IS_T32(tinstr)) {
 				/* Thumb-2 32-bit */
 				u16 tinst2 = 0;
-				fault = probe_kernel_address(ptr + 1, tinst2);
+				if (is_user_mode) {
+					pax_open_userland();
+					fault = probe_kernel_address(ptr + 1, tinst2);
+					pax_close_userland();
+				} else
+					fault = probe_kernel_address(ptr + 1, tinst2);
 				tinst2 = __mem_to_opcode_thumb16(tinst2);
 				instr = __opcode_thumb32_compose(tinstr, tinst2);
 				thumb2_32b = 1;
@@ -803,7 +814,12 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 			}
 		}
 	} else {
-		fault = probe_kernel_address((void *)instrptr, instr);
+		if (is_user_mode) {
+			pax_open_userland();
+			fault = probe_kernel_address((void *)instrptr, instr);
+			pax_close_userland();
+		} else
+			fault = probe_kernel_address((void *)instrptr, instr);
 		instr = __mem_to_opcode_arm(instr);
 	}
 
@@ -812,7 +828,7 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 		goto bad_or_fault;
 	}
 
-	if (user_mode(regs))
+	if (is_user_mode)
 		goto user;
 
 	ai_sys += 1;
diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
index 9f9d542..5189649 100644
--- a/arch/arm/mm/cache-l2x0.c
+++ b/arch/arm/mm/cache-l2x0.c
@@ -44,7 +44,7 @@ struct l2c_init_data {
 	void (*configure)(void __iomem *);
 	void (*unlock)(void __iomem *, unsigned);
 	struct outer_cache_fns outer_cache;
-};
+} __do_const;
 
 #define CACHE_LINE_SIZE		32
 
diff --git a/arch/arm/mm/context.c b/arch/arm/mm/context.c
index c8c8b9e..c55cc79 100644
--- a/arch/arm/mm/context.c
+++ b/arch/arm/mm/context.c
@@ -43,7 +43,7 @@
 #define NUM_USER_ASIDS		ASID_FIRST_VERSION
 
 static DEFINE_RAW_SPINLOCK(cpu_asid_lock);
-static atomic64_t asid_generation = ATOMIC64_INIT(ASID_FIRST_VERSION);
+static atomic64_unchecked_t asid_generation = ATOMIC64_INIT(ASID_FIRST_VERSION);
 static DECLARE_BITMAP(asid_map, NUM_USER_ASIDS);
 
 static DEFINE_PER_CPU(atomic64_t, active_asids);
@@ -193,7 +193,7 @@ static u64 new_context(struct mm_struct *mm, unsigned int cpu)
 {
 	static u32 cur_idx = 1;
 	u64 asid = atomic64_read(&mm->context.id);
-	u64 generation = atomic64_read(&asid_generation);
+	u64 generation = atomic64_read_unchecked(&asid_generation);
 
 	if (asid != 0) {
 		u64 newasid = generation | (asid & ~ASID_MASK);
@@ -225,7 +225,7 @@ static u64 new_context(struct mm_struct *mm, unsigned int cpu)
 	 */
 	asid = find_next_zero_bit(asid_map, NUM_USER_ASIDS, cur_idx);
 	if (asid == NUM_USER_ASIDS) {
-		generation = atomic64_add_return(ASID_FIRST_VERSION,
+		generation = atomic64_add_return_unchecked(ASID_FIRST_VERSION,
 						 &asid_generation);
 		flush_context(cpu);
 		asid = find_next_zero_bit(asid_map, NUM_USER_ASIDS, 1);
@@ -254,14 +254,14 @@ void check_and_switch_context(struct mm_struct *mm, struct task_struct *tsk)
 	cpu_set_reserved_ttbr0();
 
 	asid = atomic64_read(&mm->context.id);
-	if (!((asid ^ atomic64_read(&asid_generation)) >> ASID_BITS)
+	if (!((asid ^ atomic64_read_unchecked(&asid_generation)) >> ASID_BITS)
 	    && atomic64_xchg(&per_cpu(active_asids, cpu), asid))
 		goto switch_mm_fastpath;
 
 	raw_spin_lock_irqsave(&cpu_asid_lock, flags);
 	/* Check that our ASID belongs to the current generation. */
 	asid = atomic64_read(&mm->context.id);
-	if ((asid ^ atomic64_read(&asid_generation)) >> ASID_BITS) {
+	if ((asid ^ atomic64_read_unchecked(&asid_generation)) >> ASID_BITS) {
 		asid = new_context(mm, cpu);
 		atomic64_set(&mm->context.id, asid);
 	}
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index ad58418..8267ca5 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -25,6 +25,7 @@
 #include <asm/system_misc.h>
 #include <asm/system_info.h>
 #include <asm/tlbflush.h>
+#include <asm/sections.h>
 
 #include "fault.h"
 
@@ -138,6 +139,31 @@ __do_kernel_fault(struct mm_struct *mm, unsigned long addr, unsigned int fsr,
 	if (fixup_exception(regs))
 		return;
 
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	if (addr < TASK_SIZE) {
+		if (current->signal->curr_ip)
+			printk(KERN_EMERG "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to access userland memory at %08lx\n", &current->signal->curr_ip, current->comm, task_pid_nr(current),
+					from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()), addr);
+		else
+			printk(KERN_EMERG "PAX: %s:%d, uid/euid: %u/%u, attempted to access userland memory at %08lx\n", current->comm, task_pid_nr(current),
+					from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()), addr);
+	}
+#endif
+
+#ifdef CONFIG_PAX_KERNEXEC
+	if ((fsr & FSR_WRITE) &&
+	    (((unsigned long)_stext <= addr && addr < init_mm.end_code) ||
+	     (MODULES_VADDR <= addr && addr < MODULES_END)))
+	{
+		if (current->signal->curr_ip)
+			printk(KERN_EMERG "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n", &current->signal->curr_ip, current->comm, task_pid_nr(current),
+					from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
+		else
+			printk(KERN_EMERG "PAX: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n", current->comm, task_pid_nr(current),
+					from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
+	}
+#endif
+
 	/*
 	 * No handler, we'll have to terminate things with extreme prejudice.
 	 */
@@ -173,6 +199,13 @@ __do_user_fault(struct task_struct *tsk, unsigned long addr,
 	}
 #endif
 
+#ifdef CONFIG_PAX_PAGEEXEC
+	if ((tsk->mm->pax_flags & MF_PAX_PAGEEXEC) && (fsr & FSR_LNX_PF)) {
+		pax_report_fault(regs, (void *)regs->ARM_pc, (void *)regs->ARM_sp);
+		do_group_exit(SIGKILL);
+	}
+#endif
+
 	tsk->thread.address = addr;
 	tsk->thread.error_code = fsr;
 	tsk->thread.trap_no = 14;
@@ -400,6 +433,33 @@ do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 }
 #endif					/* CONFIG_MMU */
 
+#ifdef CONFIG_PAX_PAGEEXEC
+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
+{
+	long i;
+
+	printk(KERN_ERR "PAX: bytes at PC: ");
+	for (i = 0; i < 20; i++) {
+		unsigned char c;
+		if (get_user(c, (__force unsigned char __user *)pc+i))
+			printk(KERN_CONT "?? ");
+		else
+			printk(KERN_CONT "%02x ", c);
+	}
+	printk("\n");
+
+	printk(KERN_ERR "PAX: bytes at SP-4: ");
+	for (i = -1; i < 20; i++) {
+		unsigned long c;
+		if (get_user(c, (__force unsigned long __user *)sp+i))
+			printk(KERN_CONT "???????? ");
+		else
+			printk(KERN_CONT "%08lx ", c);
+	}
+	printk("\n");
+}
+#endif
+
 /*
  * First Level Translation Fault Handler
  *
@@ -547,9 +607,22 @@ do_DataAbort(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 	const struct fsr_info *inf = fsr_info + fsr_fs(fsr);
 	struct siginfo info;
 
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	if (addr < TASK_SIZE && is_domain_fault(fsr)) {
+		if (current->signal->curr_ip)
+			printk(KERN_EMERG "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to access userland memory at %08lx\n", &current->signal->curr_ip, current->comm, task_pid_nr(current),
+					from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()), addr);
+		else
+			printk(KERN_EMERG "PAX: %s:%d, uid/euid: %u/%u, attempted to access userland memory at %08lx\n", current->comm, task_pid_nr(current),
+					from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()), addr);
+		goto die;
+	}
+#endif
+
 	if (!inf->fn(addr, fsr & ~FSR_LNX_PF, regs))
 		return;
 
+die:
 	pr_alert("Unhandled fault: %s (0x%03x) at 0x%08lx\n",
 		inf->name, fsr, addr);
 	show_pte(current->mm, addr);
@@ -574,15 +647,118 @@ hook_ifault_code(int nr, int (*fn)(unsigned long, unsigned int, struct pt_regs *
 	ifsr_info[nr].name = name;
 }
 
+asmlinkage int sys_sigreturn(struct pt_regs *regs);
+asmlinkage int sys_rt_sigreturn(struct pt_regs *regs);
+
 asmlinkage void __exception
 do_PrefetchAbort(unsigned long addr, unsigned int ifsr, struct pt_regs *regs)
 {
 	const struct fsr_info *inf = ifsr_info + fsr_fs(ifsr);
 	struct siginfo info;
+	unsigned long pc = instruction_pointer(regs);
+
+	if (user_mode(regs)) {
+		unsigned long sigpage = current->mm->context.sigpage;
+
+		if (sigpage <= pc && pc < sigpage + 7*4) {
+			if (pc < sigpage + 3*4)
+				sys_sigreturn(regs);
+			else
+				sys_rt_sigreturn(regs);
+			return;
+		}
+		if (pc == 0xffff0f60UL) {
+			/*
+			 * PaX: __kuser_cmpxchg64 emulation
+			 */
+			// TODO
+			//regs->ARM_pc = regs->ARM_lr;
+			//return;
+		}
+		if (pc == 0xffff0fa0UL) {
+			/*
+			 * PaX: __kuser_memory_barrier emulation
+			 */
+			// dmb(); implied by the exception
+			regs->ARM_pc = regs->ARM_lr;
+#ifdef CONFIG_ARM_THUMB
+			if (regs->ARM_lr & 1) {
+				regs->ARM_cpsr |= PSR_T_BIT;
+				regs->ARM_pc &= ~0x1U;
+			} else
+				regs->ARM_cpsr &= ~PSR_T_BIT;
+#endif
+			return;
+		}
+		if (pc == 0xffff0fc0UL) {
+			/*
+			 * PaX: __kuser_cmpxchg emulation
+			 */
+			// TODO
+			//long new;
+			//int op;
+
+			//op = FUTEX_OP_SET << 28;
+			//new = futex_atomic_op_inuser(op, regs->ARM_r2);
+			//regs->ARM_r0 = old != new;
+			//regs->ARM_pc = regs->ARM_lr;
+			//return;
+		}
+		if (pc == 0xffff0fe0UL) {
+			/*
+			 * PaX: __kuser_get_tls emulation
+			 */
+			regs->ARM_r0 = current_thread_info()->tp_value[0];
+			regs->ARM_pc = regs->ARM_lr;
+#ifdef CONFIG_ARM_THUMB
+			if (regs->ARM_lr & 1) {
+				regs->ARM_cpsr |= PSR_T_BIT;
+				regs->ARM_pc &= ~0x1U;
+			} else
+				regs->ARM_cpsr &= ~PSR_T_BIT;
+#endif
+			return;
+		}
+	}
+
+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
+	else if (is_domain_fault(ifsr) || is_xn_fault(ifsr)) {
+		if (current->signal->curr_ip)
+			printk(KERN_EMERG "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to execute %s memory at %08lx\n", &current->signal->curr_ip, current->comm, task_pid_nr(current),
+					from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()),
+					pc >= TASK_SIZE ? "non-executable kernel" : "userland", pc);
+		else
+			printk(KERN_EMERG "PAX: %s:%d, uid/euid: %u/%u, attempted to execute %s memory at %08lx\n", current->comm, task_pid_nr(current),
+					from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()),
+					pc >= TASK_SIZE ? "non-executable kernel" : "userland", pc);
+		goto die;
+	}
+#endif
+
+#ifdef CONFIG_PAX_REFCOUNT
+	if (fsr_fs(ifsr) == FAULT_CODE_DEBUG) {
+#ifdef CONFIG_THUMB2_KERNEL
+		unsigned short bkpt;
+
+		if (!probe_kernel_address((const unsigned short *)pc, bkpt) && cpu_to_le16(bkpt) == 0xbef1) {
+#else
+		unsigned int bkpt;
+
+		if (!probe_kernel_address((const unsigned int *)pc, bkpt) && cpu_to_le32(bkpt) == 0xe12f1073) {
+#endif
+			current->thread.error_code = ifsr;
+			current->thread.trap_no = 0;
+			pax_report_refcount_overflow(regs);
+			fixup_exception(regs);
+			return;
+		}
+	}
+#endif
 
 	if (!inf->fn(addr, ifsr | FSR_LNX_PF, regs))
 		return;
 
+die:
 	pr_alert("Unhandled prefetch abort: %s (0x%03x) at 0x%08lx\n",
 		inf->name, ifsr, addr);
 
diff --git a/arch/arm/mm/fault.h b/arch/arm/mm/fault.h
index 05ec5e0..0b70277 100644
--- a/arch/arm/mm/fault.h
+++ b/arch/arm/mm/fault.h
@@ -3,6 +3,7 @@
 
 /*
  * Fault status register encodings.  We steal bit 31 for our own purposes.
+ * Set when the FSR value is from an instruction fault.
  */
 #define FSR_LNX_PF		(1 << 31)
 #define FSR_WRITE		(1 << 11)
@@ -22,6 +23,17 @@ static inline int fsr_fs(unsigned int fsr)
 }
 #endif
 
+/* valid for LPAE and !LPAE */
+static inline int is_xn_fault(unsigned int fsr)
+{
+	return ((fsr_fs(fsr) & 0x3c) == 0xc);
+}
+
+static inline int is_domain_fault(unsigned int fsr)
+{
+	return ((fsr_fs(fsr) & 0xD) == 0x9);
+}
+
 void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs);
 unsigned long search_exception_table(unsigned long addr);
 void early_abt_enable(void);
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 370581a..b985cc1 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -747,7 +747,46 @@ void free_tcmmem(void)
 {
 #ifdef CONFIG_HAVE_TCM
 	extern char __tcm_start, __tcm_end;
+#endif
 
+#ifdef CONFIG_PAX_KERNEXEC
+	unsigned long addr;
+	pgd_t *pgd;
+	pud_t *pud;
+	pmd_t *pmd;
+	int cpu_arch = cpu_architecture();
+	unsigned int cr = get_cr();
+
+	if (cpu_arch >= CPU_ARCH_ARMv6 && (cr & CR_XP)) {
+		/* make pages tables, etc before .text NX */
+		for (addr = PAGE_OFFSET; addr < (unsigned long)_stext; addr += SECTION_SIZE) {
+			pgd = pgd_offset_k(addr);
+			pud = pud_offset(pgd, addr);
+			pmd = pmd_offset(pud, addr);
+			__section_update(pmd, addr, PMD_SECT_XN);
+		}
+		/* make init NX */
+		for (addr = (unsigned long)__init_begin; addr < (unsigned long)_sdata; addr += SECTION_SIZE) {
+			pgd = pgd_offset_k(addr);
+			pud = pud_offset(pgd, addr);
+			pmd = pmd_offset(pud, addr);
+			__section_update(pmd, addr, PMD_SECT_XN);
+		}
+		/* make kernel code/rodata RX */
+		for (addr = (unsigned long)_stext; addr < (unsigned long)__init_begin; addr += SECTION_SIZE) {
+			pgd = pgd_offset_k(addr);
+			pud = pud_offset(pgd, addr);
+			pmd = pmd_offset(pud, addr);
+#ifdef CONFIG_ARM_LPAE
+			__section_update(pmd, addr, PMD_SECT_RDONLY);
+#else
+			__section_update(pmd, addr, PMD_SECT_APX|PMD_SECT_AP_WRITE);
+#endif
+		}
+	}
+#endif
+
+#ifdef CONFIG_HAVE_TCM
 	poison_init_mem(&__tcm_start, &__tcm_end - &__tcm_start);
 	free_reserved_area(&__tcm_start, &__tcm_end, -1, "TCM link");
 #endif
diff --git a/arch/arm/mm/ioremap.c b/arch/arm/mm/ioremap.c
index 66a978d..e808c4b 100644
--- a/arch/arm/mm/ioremap.c
+++ b/arch/arm/mm/ioremap.c
@@ -406,9 +406,9 @@ __arm_ioremap_exec(phys_addr_t phys_addr, size_t size, bool cached)
 	unsigned int mtype;
 
 	if (cached)
-		mtype = MT_MEMORY_RWX;
+		mtype = MT_MEMORY_RX;
 	else
-		mtype = MT_MEMORY_RWX_NONCACHED;
+		mtype = MT_MEMORY_RX_NONCACHED;
 
 	return __arm_ioremap_caller(phys_addr, size, mtype,
 			__builtin_return_address(0));
diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c
index 66353ca..8aad9f8 100644
--- a/arch/arm/mm/mmap.c
+++ b/arch/arm/mm/mmap.c
@@ -59,6 +59,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	struct vm_area_struct *vma;
 	int do_align = 0;
 	int aliasing = cache_is_vipt_aliasing();
+	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
 	struct vm_unmapped_area_info info;
 
 	/*
@@ -81,6 +82,10 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	if (len > TASK_SIZE)
 		return -ENOMEM;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (addr) {
 		if (do_align)
 			addr = COLOUR_ALIGN(addr, pgoff);
@@ -88,8 +93,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 			addr = PAGE_ALIGN(addr);
 
 		vma = find_vma(mm, addr);
-		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
 			return addr;
 	}
 
@@ -99,19 +103,21 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	info.high_limit = TASK_SIZE;
 	info.align_mask = do_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
 	info.align_offset = pgoff << PAGE_SHIFT;
+	info.threadstack_offset = offset;
 	return vm_unmapped_area(&info);
 }
 
 unsigned long
-arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
-			const unsigned long len, const unsigned long pgoff,
-			const unsigned long flags)
+arch_get_unmapped_area_topdown(struct file *filp, unsigned long addr0,
+			unsigned long len, unsigned long pgoff,
+			unsigned long flags)
 {
 	struct vm_area_struct *vma;
 	struct mm_struct *mm = current->mm;
 	unsigned long addr = addr0;
 	int do_align = 0;
 	int aliasing = cache_is_vipt_aliasing();
+	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
 	struct vm_unmapped_area_info info;
 
 	/*
@@ -132,6 +138,10 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 		return addr;
 	}
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	/* requesting a specific address */
 	if (addr) {
 		if (do_align)
@@ -139,8 +149,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 		else
 			addr = PAGE_ALIGN(addr);
 		vma = find_vma(mm, addr);
-		if (TASK_SIZE - len >= addr &&
-				(!vma || addr + len <= vma->vm_start))
+		if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
 			return addr;
 	}
 
@@ -150,6 +159,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	info.high_limit = mm->mmap_base;
 	info.align_mask = do_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
 	info.align_offset = pgoff << PAGE_SHIFT;
+	info.threadstack_offset = offset;
 	addr = vm_unmapped_area(&info);
 
 	/*
@@ -182,14 +192,30 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 {
 	unsigned long random_factor = 0UL;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (current->flags & PF_RANDOMIZE)
 		random_factor = arch_mmap_rnd();
 
 	if (mmap_is_legacy()) {
 		mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			mm->mmap_base += mm->delta_mmap;
+#endif
+
 		mm->get_unmapped_area = arch_get_unmapped_area;
 	} else {
 		mm->mmap_base = mmap_base(random_factor);
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
+#endif
+
 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
 	}
 }
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 62f4d01..bffdcfe 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -243,7 +243,15 @@ __setup("noalign", noalign_setup);
 #define PROT_PTE_S2_DEVICE	PROT_PTE_DEVICE
 #define PROT_SECT_DEVICE	PMD_TYPE_SECT|PMD_SECT_AP_WRITE
 
-static struct mem_type mem_types[] = {
+#ifdef CONFIG_PAX_KERNEXEC
+#define L_PTE_KERNEXEC		L_PTE_RDONLY
+#define PMD_SECT_KERNEXEC	PMD_SECT_RDONLY
+#else
+#define L_PTE_KERNEXEC		L_PTE_DIRTY
+#define PMD_SECT_KERNEXEC	PMD_SECT_AP_WRITE
+#endif
+
+static struct mem_type mem_types[] __read_only = {
 	[MT_DEVICE] = {		  /* Strongly ordered / ARMv6 shared device */
 		.prot_pte	= PROT_PTE_DEVICE | L_PTE_MT_DEV_SHARED |
 				  L_PTE_SHARED,
@@ -272,19 +280,19 @@ static struct mem_type mem_types[] = {
 		.prot_sect	= PROT_SECT_DEVICE,
 		.domain		= DOMAIN_IO,
 	},
-	[MT_UNCACHED] = {
+	[MT_UNCACHED_RW] = {
 		.prot_pte	= PROT_PTE_DEVICE,
 		.prot_l1	= PMD_TYPE_TABLE,
 		.prot_sect	= PMD_TYPE_SECT | PMD_SECT_XN,
 		.domain		= DOMAIN_IO,
 	},
-	[MT_CACHECLEAN] = {
-		.prot_sect = PMD_TYPE_SECT | PMD_SECT_XN,
+	[MT_CACHECLEAN_RO] = {
+		.prot_sect = PMD_TYPE_SECT | PMD_SECT_XN | PMD_SECT_RDONLY,
 		.domain    = DOMAIN_KERNEL,
 	},
 #ifndef CONFIG_ARM_LPAE
-	[MT_MINICLEAN] = {
-		.prot_sect = PMD_TYPE_SECT | PMD_SECT_XN | PMD_SECT_MINICACHE,
+	[MT_MINICLEAN_RO] = {
+		.prot_sect = PMD_TYPE_SECT | PMD_SECT_MINICACHE | PMD_SECT_XN | PMD_SECT_RDONLY,
 		.domain    = DOMAIN_KERNEL,
 	},
 #endif
@@ -300,7 +308,7 @@ static struct mem_type mem_types[] = {
 		.prot_l1   = PMD_TYPE_TABLE,
 		.domain    = DOMAIN_VECTORS,
 	},
-	[MT_MEMORY_RWX] = {
+	[__MT_MEMORY_RWX] = {
 		.prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY,
 		.prot_l1   = PMD_TYPE_TABLE,
 		.prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE,
@@ -313,17 +321,30 @@ static struct mem_type mem_types[] = {
 		.prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE,
 		.domain    = DOMAIN_KERNEL,
 	},
-	[MT_ROM] = {
-		.prot_sect = PMD_TYPE_SECT,
+	[MT_MEMORY_RX] = {
+		.prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_KERNEXEC,
+		.prot_l1   = PMD_TYPE_TABLE,
+		.prot_sect = PMD_TYPE_SECT | PMD_SECT_KERNEXEC,
+		.domain	   = DOMAIN_KERNEL,
+	},
+	[MT_ROM_RX] = {
+		.prot_sect = PMD_TYPE_SECT | PMD_SECT_RDONLY,
 		.domain    = DOMAIN_KERNEL,
 	},
-	[MT_MEMORY_RWX_NONCACHED] = {
+	[MT_MEMORY_RW_NONCACHED] = {
 		.prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
 				L_PTE_MT_BUFFERABLE,
 		.prot_l1   = PMD_TYPE_TABLE,
 		.prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE,
 		.domain    = DOMAIN_KERNEL,
 	},
+	[MT_MEMORY_RX_NONCACHED] = {
+		.prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_KERNEXEC |
+				L_PTE_MT_BUFFERABLE,
+		.prot_l1   = PMD_TYPE_TABLE,
+		.prot_sect = PMD_TYPE_SECT | PMD_SECT_KERNEXEC,
+		.domain    = DOMAIN_KERNEL,
+	},
 	[MT_MEMORY_RW_DTCM] = {
 		.prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
 				L_PTE_XN,
@@ -331,9 +352,10 @@ static struct mem_type mem_types[] = {
 		.prot_sect = PMD_TYPE_SECT | PMD_SECT_XN,
 		.domain    = DOMAIN_KERNEL,
 	},
-	[MT_MEMORY_RWX_ITCM] = {
-		.prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY,
+	[MT_MEMORY_RX_ITCM] = {
+		.prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_KERNEXEC,
 		.prot_l1   = PMD_TYPE_TABLE,
+		.prot_sect = PMD_TYPE_SECT | PMD_SECT_KERNEXEC,
 		.domain    = DOMAIN_KERNEL,
 	},
 	[MT_MEMORY_RW_SO] = {
@@ -586,9 +608,14 @@ static void __init build_mem_type_table(void)
 		 * Mark cache clean areas and XIP ROM read only
 		 * from SVC mode and no access from userspace.
 		 */
-		mem_types[MT_ROM].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
-		mem_types[MT_MINICLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
-		mem_types[MT_CACHECLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
+		mem_types[MT_ROM_RX].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
+#ifdef CONFIG_PAX_KERNEXEC
+		mem_types[MT_MEMORY_RX].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
+		mem_types[MT_MEMORY_RX_NONCACHED].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
+		mem_types[MT_MEMORY_RX_ITCM].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
+#endif
+		mem_types[MT_MINICLEAN_RO].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
+		mem_types[MT_CACHECLEAN_RO].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
 #endif
 
 		/*
@@ -605,13 +632,17 @@ static void __init build_mem_type_table(void)
 			mem_types[MT_DEVICE_WC].prot_pte |= L_PTE_SHARED;
 			mem_types[MT_DEVICE_CACHED].prot_sect |= PMD_SECT_S;
 			mem_types[MT_DEVICE_CACHED].prot_pte |= L_PTE_SHARED;
-			mem_types[MT_MEMORY_RWX].prot_sect |= PMD_SECT_S;
-			mem_types[MT_MEMORY_RWX].prot_pte |= L_PTE_SHARED;
+			mem_types[__MT_MEMORY_RWX].prot_sect |= PMD_SECT_S;
+			mem_types[__MT_MEMORY_RWX].prot_pte |= L_PTE_SHARED;
 			mem_types[MT_MEMORY_RW].prot_sect |= PMD_SECT_S;
 			mem_types[MT_MEMORY_RW].prot_pte |= L_PTE_SHARED;
+			mem_types[MT_MEMORY_RX].prot_sect |= PMD_SECT_S;
+			mem_types[MT_MEMORY_RX].prot_pte |= L_PTE_SHARED;
 			mem_types[MT_MEMORY_DMA_READY].prot_pte |= L_PTE_SHARED;
-			mem_types[MT_MEMORY_RWX_NONCACHED].prot_sect |= PMD_SECT_S;
-			mem_types[MT_MEMORY_RWX_NONCACHED].prot_pte |= L_PTE_SHARED;
+			mem_types[MT_MEMORY_RW_NONCACHED].prot_sect |= PMD_SECT_S;
+			mem_types[MT_MEMORY_RW_NONCACHED].prot_pte |= L_PTE_SHARED;
+			mem_types[MT_MEMORY_RX_NONCACHED].prot_sect |= PMD_SECT_S;
+			mem_types[MT_MEMORY_RX_NONCACHED].prot_pte |= L_PTE_SHARED;
 		}
 	}
 
@@ -622,15 +653,20 @@ static void __init build_mem_type_table(void)
 	if (cpu_arch >= CPU_ARCH_ARMv6) {
 		if (cpu_arch >= CPU_ARCH_ARMv7 && (cr & CR_TRE)) {
 			/* Non-cacheable Normal is XCB = 001 */
-			mem_types[MT_MEMORY_RWX_NONCACHED].prot_sect |=
+			mem_types[MT_MEMORY_RW_NONCACHED].prot_sect |=
+				PMD_SECT_BUFFERED;
+			mem_types[MT_MEMORY_RX_NONCACHED].prot_sect |=
 				PMD_SECT_BUFFERED;
 		} else {
 			/* For both ARMv6 and non-TEX-remapping ARMv7 */
-			mem_types[MT_MEMORY_RWX_NONCACHED].prot_sect |=
+			mem_types[MT_MEMORY_RW_NONCACHED].prot_sect |=
+				PMD_SECT_TEX(1);
+			mem_types[MT_MEMORY_RX_NONCACHED].prot_sect |=
 				PMD_SECT_TEX(1);
 		}
 	} else {
-		mem_types[MT_MEMORY_RWX_NONCACHED].prot_sect |= PMD_SECT_BUFFERABLE;
+		mem_types[MT_MEMORY_RW_NONCACHED].prot_sect |= PMD_SECT_BUFFERABLE;
+		mem_types[MT_MEMORY_RX_NONCACHED].prot_sect |= PMD_SECT_BUFFERABLE;
 	}
 
 #ifdef CONFIG_ARM_LPAE
@@ -651,6 +687,8 @@ static void __init build_mem_type_table(void)
 	user_pgprot |= PTE_EXT_PXN;
 #endif
 
+	user_pgprot |= __supported_pte_mask;
+
 	for (i = 0; i < 16; i++) {
 		pteval_t v = pgprot_val(protection_map[i]);
 		protection_map[i] = __pgprot(v | user_pgprot);
@@ -668,21 +706,24 @@ static void __init build_mem_type_table(void)
 
 	mem_types[MT_LOW_VECTORS].prot_l1 |= ecc_mask;
 	mem_types[MT_HIGH_VECTORS].prot_l1 |= ecc_mask;
-	mem_types[MT_MEMORY_RWX].prot_sect |= ecc_mask | cp->pmd;
-	mem_types[MT_MEMORY_RWX].prot_pte |= kern_pgprot;
+	mem_types[__MT_MEMORY_RWX].prot_sect |= ecc_mask | cp->pmd;
+	mem_types[__MT_MEMORY_RWX].prot_pte |= kern_pgprot;
 	mem_types[MT_MEMORY_RW].prot_sect |= ecc_mask | cp->pmd;
 	mem_types[MT_MEMORY_RW].prot_pte |= kern_pgprot;
+	mem_types[MT_MEMORY_RX].prot_sect |= ecc_mask | cp->pmd;
+	mem_types[MT_MEMORY_RX].prot_pte |= kern_pgprot;
 	mem_types[MT_MEMORY_DMA_READY].prot_pte |= kern_pgprot;
-	mem_types[MT_MEMORY_RWX_NONCACHED].prot_sect |= ecc_mask;
-	mem_types[MT_ROM].prot_sect |= cp->pmd;
+	mem_types[MT_MEMORY_RW_NONCACHED].prot_sect |= ecc_mask;
+	mem_types[MT_MEMORY_RX_NONCACHED].prot_sect |= ecc_mask;
+	mem_types[MT_ROM_RX].prot_sect |= cp->pmd;
 
 	switch (cp->pmd) {
 	case PMD_SECT_WT:
-		mem_types[MT_CACHECLEAN].prot_sect |= PMD_SECT_WT;
+		mem_types[MT_CACHECLEAN_RO].prot_sect |= PMD_SECT_WT;
 		break;
 	case PMD_SECT_WB:
 	case PMD_SECT_WBWA:
-		mem_types[MT_CACHECLEAN].prot_sect |= PMD_SECT_WB;
+		mem_types[MT_CACHECLEAN_RO].prot_sect |= PMD_SECT_WB;
 		break;
 	}
 	pr_info("Memory policy: %sData cache %s\n",
@@ -958,7 +999,7 @@ static void __init create_mapping(struct map_desc *md)
 		return;
 	}
 
-	if ((md->type == MT_DEVICE || md->type == MT_ROM) &&
+	if ((md->type == MT_DEVICE || md->type == MT_ROM_RX) &&
 	    md->virtual >= PAGE_OFFSET && md->virtual < FIXADDR_START &&
 	    (md->virtual < VMALLOC_START || md->virtual >= VMALLOC_END)) {
 		pr_warn("BUG: mapping for 0x%08llx at 0x%08lx out of vmalloc space\n",
@@ -1309,18 +1350,15 @@ void __init arm_mm_memblock_reserve(void)
  * Any other function or debugging method which may touch any device _will_
  * crash the kernel.
  */
+
+static char vectors[PAGE_SIZE * 2] __read_only __aligned(PAGE_SIZE);
+
 static void __init devicemaps_init(const struct machine_desc *mdesc)
 {
 	struct map_desc map;
 	unsigned long addr;
-	void *vectors;
 
-	/*
-	 * Allocate the vector page early.
-	 */
-	vectors = early_alloc(PAGE_SIZE * 2);
-
-	early_trap_init(vectors);
+	early_trap_init(&vectors);
 
 	/*
 	 * Clear page table except top pmd used by early fixmaps
@@ -1336,7 +1374,7 @@ static void __init devicemaps_init(const struct machine_desc *mdesc)
 	map.pfn = __phys_to_pfn(CONFIG_XIP_PHYS_ADDR & SECTION_MASK);
 	map.virtual = MODULES_VADDR;
 	map.length = ((unsigned long)_exiprom - map.virtual + ~SECTION_MASK) & SECTION_MASK;
-	map.type = MT_ROM;
+	map.type = MT_ROM_RX;
 	create_mapping(&map);
 #endif
 
@@ -1347,14 +1385,14 @@ static void __init devicemaps_init(const struct machine_desc *mdesc)
 	map.pfn = __phys_to_pfn(FLUSH_BASE_PHYS);
 	map.virtual = FLUSH_BASE;
 	map.length = SZ_1M;
-	map.type = MT_CACHECLEAN;
+	map.type = MT_CACHECLEAN_RO;
 	create_mapping(&map);
 #endif
 #ifdef FLUSH_BASE_MINICACHE
 	map.pfn = __phys_to_pfn(FLUSH_BASE_PHYS + SZ_1M);
 	map.virtual = FLUSH_BASE_MINICACHE;
 	map.length = SZ_1M;
-	map.type = MT_MINICLEAN;
+	map.type = MT_MINICLEAN_RO;
 	create_mapping(&map);
 #endif
 
@@ -1363,7 +1401,7 @@ static void __init devicemaps_init(const struct machine_desc *mdesc)
 	 * location (0xffff0000).  If we aren't using high-vectors, also
 	 * create a mapping at the low-vectors virtual address.
 	 */
-	map.pfn = __phys_to_pfn(virt_to_phys(vectors));
+	map.pfn = __phys_to_pfn(virt_to_phys(&vectors));
 	map.virtual = 0xffff0000;
 	map.length = PAGE_SIZE;
 #ifdef CONFIG_KUSER_HELPERS
@@ -1426,12 +1464,14 @@ static void __init kmap_init(void)
 static void __init map_lowmem(void)
 {
 	struct memblock_region *reg;
+#ifndef CONFIG_PAX_KERNEXEC
 #ifdef CONFIG_XIP_KERNEL
 	phys_addr_t kernel_x_start = round_down(__pa(_sdata), SECTION_SIZE);
 #else
 	phys_addr_t kernel_x_start = round_down(__pa(_stext), SECTION_SIZE);
 #endif
 	phys_addr_t kernel_x_end = round_up(__pa(__init_end), SECTION_SIZE);
+#endif
 
 	/* Map all the lowmem memory banks. */
 	for_each_memblock(memory, reg) {
@@ -1447,11 +1487,48 @@ static void __init map_lowmem(void)
 		if (start >= end)
 			break;
 
+#ifdef CONFIG_PAX_KERNEXEC
+		map.pfn = __phys_to_pfn(start);
+		map.virtual = __phys_to_virt(start);
+		map.length = end - start;
+
+		if (map.virtual <= (unsigned long)_stext && ((unsigned long)_end < (map.virtual + map.length))) {
+			struct map_desc kernel;
+			struct map_desc initmap;
+
+			/* when freeing initmem we will make this RW */
+			initmap.pfn = __phys_to_pfn(__pa(__init_begin));
+			initmap.virtual = (unsigned long)__init_begin;
+			initmap.length = _sdata - __init_begin;
+			initmap.type = __MT_MEMORY_RWX;
+			create_mapping(&initmap);
+
+			/* when freeing initmem we will make this RX */
+			kernel.pfn = __phys_to_pfn(__pa(_stext));
+			kernel.virtual = (unsigned long)_stext;
+			kernel.length = __init_begin - _stext;
+			kernel.type = __MT_MEMORY_RWX;
+			create_mapping(&kernel);
+
+			if (map.virtual < (unsigned long)_stext) {
+				map.length = (unsigned long)_stext - map.virtual;
+				map.type = __MT_MEMORY_RWX;
+				create_mapping(&map);
+			}
+
+			map.pfn = __phys_to_pfn(__pa(_sdata));
+			map.virtual = (unsigned long)_sdata;
+			map.length = end - __pa(_sdata);
+		}
+
+		map.type = MT_MEMORY_RW;
+		create_mapping(&map);
+#else
 		if (end < kernel_x_start) {
 			map.pfn = __phys_to_pfn(start);
 			map.virtual = __phys_to_virt(start);
 			map.length = end - start;
-			map.type = MT_MEMORY_RWX;
+			map.type = __MT_MEMORY_RWX;
 
 			create_mapping(&map);
 		} else if (start >= kernel_x_end) {
@@ -1475,7 +1552,7 @@ static void __init map_lowmem(void)
 			map.pfn = __phys_to_pfn(kernel_x_start);
 			map.virtual = __phys_to_virt(kernel_x_start);
 			map.length = kernel_x_end - kernel_x_start;
-			map.type = MT_MEMORY_RWX;
+			map.type = __MT_MEMORY_RWX;
 
 			create_mapping(&map);
 
@@ -1488,6 +1565,7 @@ static void __init map_lowmem(void)
 				create_mapping(&map);
 			}
 		}
+#endif
 	}
 }
 
diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c
index 93d0b6d..2db6d99 100644
--- a/arch/arm/net/bpf_jit_32.c
+++ b/arch/arm/net/bpf_jit_32.c
@@ -20,6 +20,7 @@
 #include <asm/cacheflush.h>
 #include <asm/hwcap.h>
 #include <asm/opcodes.h>
+#include <asm/pgtable.h>
 
 #include "bpf_jit_32.h"
 
@@ -72,54 +73,38 @@ struct jit_ctx {
 #endif
 };
 
+#ifdef CONFIG_GRKERNSEC_BPF_HARDEN
+int bpf_jit_enable __read_only;
+#else
 int bpf_jit_enable __read_mostly;
+#endif
 
-static inline int call_neg_helper(struct sk_buff *skb, int offset, void *ret,
-		      unsigned int size)
-{
-	void *ptr = bpf_internal_load_pointer_neg_helper(skb, offset, size);
-
-	if (!ptr)
-		return -EFAULT;
-	memcpy(ret, ptr, size);
-	return 0;
-}
-
-static u64 jit_get_skb_b(struct sk_buff *skb, int offset)
+static u64 jit_get_skb_b(struct sk_buff *skb, unsigned offset)
 {
 	u8 ret;
 	int err;
 
-	if (offset < 0)
-		err = call_neg_helper(skb, offset, &ret, 1);
-	else
-		err = skb_copy_bits(skb, offset, &ret, 1);
+	err = skb_copy_bits(skb, offset, &ret, 1);
 
 	return (u64)err << 32 | ret;
 }
 
-static u64 jit_get_skb_h(struct sk_buff *skb, int offset)
+static u64 jit_get_skb_h(struct sk_buff *skb, unsigned offset)
 {
 	u16 ret;
 	int err;
 
-	if (offset < 0)
-		err = call_neg_helper(skb, offset, &ret, 2);
-	else
-		err = skb_copy_bits(skb, offset, &ret, 2);
+	err = skb_copy_bits(skb, offset, &ret, 2);
 
 	return (u64)err << 32 | ntohs(ret);
 }
 
-static u64 jit_get_skb_w(struct sk_buff *skb, int offset)
+static u64 jit_get_skb_w(struct sk_buff *skb, unsigned offset)
 {
 	u32 ret;
 	int err;
 
-	if (offset < 0)
-		err = call_neg_helper(skb, offset, &ret, 4);
-	else
-		err = skb_copy_bits(skb, offset, &ret, 4);
+	err = skb_copy_bits(skb, offset, &ret, 4);
 
 	return (u64)err << 32 | ntohl(ret);
 }
@@ -191,8 +176,10 @@ static void jit_fill_hole(void *area, unsigned int size)
 {
 	u32 *ptr;
 	/* We are guaranteed to have aligned memory. */
+	pax_open_kernel();
 	for (ptr = area; size >= sizeof(u32); size -= sizeof(u32))
 		*ptr++ = __opcode_to_mem_arm(ARM_INST_UDF);
+	pax_close_kernel();
 }
 
 static void build_prologue(struct jit_ctx *ctx)
@@ -554,6 +541,9 @@ static int build_body(struct jit_ctx *ctx)
 		case BPF_LD | BPF_B | BPF_ABS:
 			load_order = 0;
 load:
+			/* the interpreter will deal with the negative K */
+			if ((int)k < 0)
+				return -ENOTSUPP;
 			emit_mov_i(r_off, k, ctx);
 load_common:
 			ctx->seen |= SEEN_DATA | SEEN_CALL;
@@ -568,18 +558,6 @@ load_common:
 				condt = ARM_COND_HI;
 			}
 
-			/*
-			 * test for negative offset, only if we are
-			 * currently scheduled to take the fast
-			 * path. this will update the flags so that
-			 * the slowpath instruction are ignored if the
-			 * offset is negative.
-			 *
-			 * for loard_order == 0 the HI condition will
-			 * make loads at offset 0 take the slow path too.
-			 */
-			_emit(condt, ARM_CMP_I(r_off, 0), ctx);
-
 			_emit(condt, ARM_ADD_R(r_scratch, r_off, r_skb_data),
 			      ctx);
 
diff --git a/arch/arm/plat-iop/setup.c b/arch/arm/plat-iop/setup.c
index 5b217f4..c23f40e 100644
--- a/arch/arm/plat-iop/setup.c
+++ b/arch/arm/plat-iop/setup.c
@@ -24,7 +24,7 @@ static struct map_desc iop3xx_std_desc[] __initdata = {
 		.virtual	= IOP3XX_PERIPHERAL_VIRT_BASE,
 		.pfn		= __phys_to_pfn(IOP3XX_PERIPHERAL_PHYS_BASE),
 		.length		= IOP3XX_PERIPHERAL_SIZE,
-		.type		= MT_UNCACHED,
+		.type		= MT_UNCACHED_RW,
 	 },
 };
 
diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c
index a5bc92d..0bb4730 100644
--- a/arch/arm/plat-omap/sram.c
+++ b/arch/arm/plat-omap/sram.c
@@ -93,6 +93,8 @@ void __init omap_map_sram(unsigned long start, unsigned long size,
 	 * Looks like we need to preserve some bootloader code at the
 	 * beginning of SRAM for jumping to flash for reboot to work...
 	 */
+	pax_open_kernel();
 	memset_io(omap_sram_base + omap_sram_skip, 0,
 		  omap_sram_size - omap_sram_skip);
+	pax_close_kernel();
 }
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 4f43622..22c9473 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -72,6 +72,7 @@ config ARM64
 	select HAVE_FTRACE_MCOUNT_RECORD
 	select HAVE_FUNCTION_TRACER
 	select HAVE_FUNCTION_GRAPH_TRACER
+	select HAVE_GCC_PLUGINS
 	select HAVE_GENERIC_DMA_COHERENT
 	select HAVE_HW_BREAKPOINT if PERF_EVENTS
 	select HAVE_IRQ_TIME_ACCOUNTING
diff --git a/arch/arm64/Kconfig.debug b/arch/arm64/Kconfig.debug
index 7e76845..e5ce349 100644
--- a/arch/arm64/Kconfig.debug
+++ b/arch/arm64/Kconfig.debug
@@ -6,6 +6,7 @@ config ARM64_PTDUMP
 	bool "Export kernel pagetable layout to userspace via debugfs"
 	depends on DEBUG_KERNEL
 	select DEBUG_FS
+	depends on !GRKERNSEC_KMEM
         help
 	  Say Y here if you want to show the kernel pagetable layout in a
 	  debugfs file. This information is only useful for kernel developers
diff --git a/arch/arm64/include/asm/atomic.h b/arch/arm64/include/asm/atomic.h
index f3a3586..832c720 100644
--- a/arch/arm64/include/asm/atomic.h
+++ b/arch/arm64/include/asm/atomic.h
@@ -146,5 +146,15 @@
 
 #define atomic64_inc_not_zero(v)	atomic64_add_unless((v), 1, 0)
 
+#define atomic64_read_unchecked(v)		atomic64_read(v)
+#define atomic64_set_unchecked(v, i)		atomic64_set((v), (i))
+#define atomic64_add_unchecked(a, v)		atomic64_add((a), (v))
+#define atomic64_add_return_unchecked(a, v)	atomic64_add_return((a), (v))
+#define atomic64_sub_unchecked(a, v)		atomic64_sub((a), (v))
+#define atomic64_inc_unchecked(v)		atomic64_inc(v)
+#define atomic64_inc_return_unchecked(v)	atomic64_inc_return(v)
+#define atomic64_dec_unchecked(v)		atomic64_dec(v)
+#define atomic64_cmpxchg_unchecked(v, o, n)	atomic64_cmpxchg((v), (o), (n))
+
 #endif
 #endif
diff --git a/arch/arm64/include/asm/percpu.h b/arch/arm64/include/asm/percpu.h
index 0a456be..7799ff5 100644
--- a/arch/arm64/include/asm/percpu.h
+++ b/arch/arm64/include/asm/percpu.h
@@ -127,16 +127,16 @@ static inline void __percpu_write(void *ptr, unsigned long val, int size)
 {
 	switch (size) {
 	case 1:
-		ACCESS_ONCE(*(u8 *)ptr) = (u8)val;
+		ACCESS_ONCE_RW(*(u8 *)ptr) = (u8)val;
 		break;
 	case 2:
-		ACCESS_ONCE(*(u16 *)ptr) = (u16)val;
+		ACCESS_ONCE_RW(*(u16 *)ptr) = (u16)val;
 		break;
 	case 4:
-		ACCESS_ONCE(*(u32 *)ptr) = (u32)val;
+		ACCESS_ONCE_RW(*(u32 *)ptr) = (u32)val;
 		break;
 	case 8:
-		ACCESS_ONCE(*(u64 *)ptr) = (u64)val;
+		ACCESS_ONCE_RW(*(u64 *)ptr) = (u64)val;
 		break;
 	default:
 		BUILD_BUG();
diff --git a/arch/arm64/include/asm/pgalloc.h b/arch/arm64/include/asm/pgalloc.h
index ff98585..65eced1 100644
--- a/arch/arm64/include/asm/pgalloc.h
+++ b/arch/arm64/include/asm/pgalloc.h
@@ -51,6 +51,11 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
 {
 	__pud_populate(pud, __pa(pmd), PMD_TYPE_TABLE);
 }
+
+static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
+{
+	pud_populate(mm, pud, pmd);
+}
 #else
 static inline void __pud_populate(pud_t *pud, phys_addr_t pmd, pudval_t prot)
 {
diff --git a/arch/arm64/include/asm/string.h b/arch/arm64/include/asm/string.h
index 2eb714c..6c0fdb7 100644
--- a/arch/arm64/include/asm/string.h
+++ b/arch/arm64/include/asm/string.h
@@ -17,40 +17,40 @@
 #define __ASM_STRING_H
 
 #define __HAVE_ARCH_STRRCHR
-extern char *strrchr(const char *, int c);
+extern char *strrchr(const char *, int c) __nocapture(1);
 
 #define __HAVE_ARCH_STRCHR
-extern char *strchr(const char *, int c);
+extern char *strchr(const char *, int c) __nocapture(1);
 
 #define __HAVE_ARCH_STRCMP
-extern int strcmp(const char *, const char *);
+extern int strcmp(const char *, const char *) __nocapture(1, 2);
 
 #define __HAVE_ARCH_STRNCMP
-extern int strncmp(const char *, const char *, __kernel_size_t);
+extern int strncmp(const char *, const char *, __kernel_size_t) __nocapture(1, 2);
 
 #define __HAVE_ARCH_STRLEN
 extern __kernel_size_t strlen(const char *);
 
 #define __HAVE_ARCH_STRNLEN
-extern __kernel_size_t strnlen(const char *, __kernel_size_t);
+extern __kernel_size_t strnlen(const char *, __kernel_size_t) __nocapture(1);
 
 #define __HAVE_ARCH_MEMCPY
-extern void *memcpy(void *, const void *, __kernel_size_t);
-extern void *__memcpy(void *, const void *, __kernel_size_t);
+extern void *memcpy(void *, const void *, __kernel_size_t) __nocapture(2);
+extern void *__memcpy(void *, const void *, __kernel_size_t) __nocapture(2);
 
 #define __HAVE_ARCH_MEMMOVE
-extern void *memmove(void *, const void *, __kernel_size_t);
-extern void *__memmove(void *, const void *, __kernel_size_t);
+extern void *memmove(void *, const void *, __kernel_size_t) __nocapture(2);
+extern void *__memmove(void *, const void *, __kernel_size_t) __nocapture(2);
 
 #define __HAVE_ARCH_MEMCHR
-extern void *memchr(const void *, int, __kernel_size_t);
+extern void *memchr(const void *, int, __kernel_size_t) __nocapture(1);
 
 #define __HAVE_ARCH_MEMSET
 extern void *memset(void *, int, __kernel_size_t);
 extern void *__memset(void *, int, __kernel_size_t);
 
 #define __HAVE_ARCH_MEMCMP
-extern int memcmp(const void *, const void *, size_t);
+extern int memcmp(const void *, const void *, size_t) __nocapture(1, 2);
 
 
 #if defined(CONFIG_KASAN) && !defined(__SANITIZE_ADDRESS__)
diff --git a/arch/arm64/include/asm/uaccess.h b/arch/arm64/include/asm/uaccess.h
index 0685d74..6898549 100644
--- a/arch/arm64/include/asm/uaccess.h
+++ b/arch/arm64/include/asm/uaccess.h
@@ -114,6 +114,7 @@ static inline void set_fs(mm_segment_t fs)
 	flag;								\
 })
 
+#define access_ok_noprefault(type, addr, size) access_ok((type), (addr), (size))
 #define access_ok(type, addr, size)	__range_ok(addr, size)
 #define user_addr_max			get_fs
 
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index a6e757c..00fc586 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -132,7 +132,7 @@ static void __dma_free_coherent(struct device *dev, size_t size,
 					phys_to_page(paddr),
 					size >> PAGE_SHIFT);
 	if (!freed)
-		swiotlb_free_coherent(dev, size, vaddr, dma_handle);
+		swiotlb_free_coherent(dev, size, vaddr, dma_handle, attrs);
 }
 
 static void *__dma_alloc(struct device *dev, size_t size,
diff --git a/arch/avr32/include/asm/cache.h b/arch/avr32/include/asm/cache.h
index c3a58a1..78fbf54 100644
--- a/arch/avr32/include/asm/cache.h
+++ b/arch/avr32/include/asm/cache.h
@@ -1,8 +1,10 @@
 #ifndef __ASM_AVR32_CACHE_H
 #define __ASM_AVR32_CACHE_H
 
+#include <linux/const.h>
+
 #define L1_CACHE_SHIFT 5
-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
 
 /*
  * Memory returned by kmalloc() may be used for DMA, so we must make
diff --git a/arch/avr32/include/asm/elf.h b/arch/avr32/include/asm/elf.h
index 0388ece..87c8df1 100644
--- a/arch/avr32/include/asm/elf.h
+++ b/arch/avr32/include/asm/elf.h
@@ -84,8 +84,14 @@ typedef struct user_fpu_struct elf_fpregset_t;
    the loader.  We need to make sure that it is out of the way of the program
    that it will "exec", and that there is sufficient room for the brk.  */
 
-#define ELF_ET_DYN_BASE         (TASK_SIZE / 3 * 2)
+#define ELF_ET_DYN_BASE		(TASK_SIZE / 3 * 2)
 
+#ifdef CONFIG_PAX_ASLR
+#define PAX_ELF_ET_DYN_BASE	0x00001000UL
+
+#define PAX_DELTA_MMAP_LEN	15
+#define PAX_DELTA_STACK_LEN	15
+#endif
 
 /* This yields a mask that user programs can use to figure out what
    instruction set this CPU supports.  This could be done in user space,
diff --git a/arch/avr32/include/asm/kmap_types.h b/arch/avr32/include/asm/kmap_types.h
index 479330b..53717a8 100644
--- a/arch/avr32/include/asm/kmap_types.h
+++ b/arch/avr32/include/asm/kmap_types.h
@@ -2,9 +2,9 @@
 #define __ASM_AVR32_KMAP_TYPES_H
 
 #ifdef CONFIG_DEBUG_HIGHMEM
-# define KM_TYPE_NR 29
+# define KM_TYPE_NR 30
 #else
-# define KM_TYPE_NR 14
+# define KM_TYPE_NR 15
 #endif
 
 #endif /* __ASM_AVR32_KMAP_TYPES_H */
diff --git a/arch/avr32/mm/fault.c b/arch/avr32/mm/fault.c
index c035339..e1fa594 100644
--- a/arch/avr32/mm/fault.c
+++ b/arch/avr32/mm/fault.c
@@ -41,6 +41,23 @@ static inline int notify_page_fault(struct pt_regs *regs, int trap)
 
 int exception_trace = 1;
 
+#ifdef CONFIG_PAX_PAGEEXEC
+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
+{
+	unsigned long i;
+
+	printk(KERN_ERR "PAX: bytes at PC: ");
+	for (i = 0; i < 20; i++) {
+		unsigned char c;
+		if (get_user(c, (unsigned char *)pc+i))
+			printk(KERN_CONT "???????? ");
+		else
+			printk(KERN_CONT "%02x ", c);
+	}
+	printk("\n");
+}
+#endif
+
 /*
  * This routine handles page faults. It determines the address and the
  * problem, and then passes it off to one of the appropriate routines.
@@ -178,6 +195,16 @@ bad_area:
 	up_read(&mm->mmap_sem);
 
 	if (user_mode(regs)) {
+
+#ifdef CONFIG_PAX_PAGEEXEC
+		if (mm->pax_flags & MF_PAX_PAGEEXEC) {
+			if (ecr == ECR_PROTECTION_X || ecr == ECR_TLB_MISS_X) {
+				pax_report_fault(regs, (void *)regs->pc, (void *)regs->sp);
+				do_group_exit(SIGKILL);
+			}
+		}
+#endif
+
 		if (exception_trace && printk_ratelimit())
 			printk("%s%s[%d]: segfault at %08lx pc %08lx "
 			       "sp %08lx ecr %lu\n",
diff --git a/arch/blackfin/Kconfig.debug b/arch/blackfin/Kconfig.debug
index f3337ee..15b6f8d 100644
--- a/arch/blackfin/Kconfig.debug
+++ b/arch/blackfin/Kconfig.debug
@@ -18,6 +18,7 @@ config DEBUG_VERBOSE
 config DEBUG_MMRS
 	tristate "Generate Blackfin MMR tree"
 	select DEBUG_FS
+	depends on !GRKERNSEC_KMEM
 	help
 	  Create a tree of Blackfin MMRs via the debugfs tree.  If
 	  you enable this, you will find all MMRs laid out in the
diff --git a/arch/blackfin/include/asm/cache.h b/arch/blackfin/include/asm/cache.h
index 568885a..f8008df 100644
--- a/arch/blackfin/include/asm/cache.h
+++ b/arch/blackfin/include/asm/cache.h
@@ -7,6 +7,7 @@
 #ifndef __ARCH_BLACKFIN_CACHE_H
 #define __ARCH_BLACKFIN_CACHE_H
 
+#include <linux/const.h>
 #include <linux/linkage.h>	/* for asmlinkage */
 
 /*
@@ -14,7 +15,7 @@
  * Blackfin loads 32 bytes for cache
  */
 #define L1_CACHE_SHIFT	5
-#define L1_CACHE_BYTES	(1 << L1_CACHE_SHIFT)
+#define L1_CACHE_BYTES	(_AC(1,UL) << L1_CACHE_SHIFT)
 #define SMP_CACHE_BYTES	L1_CACHE_BYTES
 
 #define ARCH_DMA_MINALIGN	L1_CACHE_BYTES
diff --git a/arch/cris/include/arch-v10/arch/cache.h b/arch/cris/include/arch-v10/arch/cache.h
index aea2718..3639a60 100644
--- a/arch/cris/include/arch-v10/arch/cache.h
+++ b/arch/cris/include/arch-v10/arch/cache.h
@@ -1,8 +1,9 @@
 #ifndef _ASM_ARCH_CACHE_H
 #define _ASM_ARCH_CACHE_H
 
+#include <linux/const.h>
 /* Etrax 100LX have 32-byte cache-lines. */
-#define L1_CACHE_BYTES 32
 #define L1_CACHE_SHIFT 5
+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
 
 #endif /* _ASM_ARCH_CACHE_H */
diff --git a/arch/cris/include/arch-v32/arch/cache.h b/arch/cris/include/arch-v32/arch/cache.h
index 7caf25d..ee65ac5 100644
--- a/arch/cris/include/arch-v32/arch/cache.h
+++ b/arch/cris/include/arch-v32/arch/cache.h
@@ -1,11 +1,12 @@
 #ifndef _ASM_CRIS_ARCH_CACHE_H
 #define _ASM_CRIS_ARCH_CACHE_H
 
+#include <linux/const.h>
 #include <arch/hwregs/dma.h>
 
 /* A cache-line is 32 bytes. */
-#define L1_CACHE_BYTES 32
 #define L1_CACHE_SHIFT 5
+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
 
 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
 
diff --git a/arch/frv/include/asm/atomic.h b/arch/frv/include/asm/atomic.h
index 64f02d4..c1b0839 100644
--- a/arch/frv/include/asm/atomic.h
+++ b/arch/frv/include/asm/atomic.h
@@ -166,6 +166,16 @@ static inline void atomic64_dec(atomic64_t *v)
 #define atomic64_cmpxchg(v, old, new)	(__cmpxchg_64(old, new, &(v)->counter))
 #define atomic64_xchg(v, new)		(__xchg_64(new, &(v)->counter))
 
+#define atomic64_read_unchecked(v)		atomic64_read(v)
+#define atomic64_set_unchecked(v, i)		atomic64_set((v), (i))
+#define atomic64_add_unchecked(a, v)		atomic64_add((a), (v))
+#define atomic64_add_return_unchecked(a, v)	atomic64_add_return((a), (v))
+#define atomic64_sub_unchecked(a, v)		atomic64_sub((a), (v))
+#define atomic64_inc_unchecked(v)		atomic64_inc(v)
+#define atomic64_inc_return_unchecked(v)	atomic64_inc_return(v)
+#define atomic64_dec_unchecked(v)		atomic64_dec(v)
+#define atomic64_cmpxchg_unchecked(v, o, n)	atomic64_cmpxchg((v), (o), (n))
+
 static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
 {
 	int c, old;
diff --git a/arch/frv/include/asm/cache.h b/arch/frv/include/asm/cache.h
index 2797163..c2a401df9 100644
--- a/arch/frv/include/asm/cache.h
+++ b/arch/frv/include/asm/cache.h
@@ -12,10 +12,11 @@
 #ifndef __ASM_CACHE_H
 #define __ASM_CACHE_H
 
+#include <linux/const.h>
 
 /* bytes per L1 cache line */
 #define L1_CACHE_SHIFT		(CONFIG_FRV_L1_CACHE_SHIFT)
-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
+#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
 
 #define __cacheline_aligned	__attribute__((aligned(L1_CACHE_BYTES)))
 #define ____cacheline_aligned	__attribute__((aligned(L1_CACHE_BYTES)))
diff --git a/arch/frv/include/asm/kmap_types.h b/arch/frv/include/asm/kmap_types.h
index 43901f2..0d8b865 100644
--- a/arch/frv/include/asm/kmap_types.h
+++ b/arch/frv/include/asm/kmap_types.h
@@ -2,6 +2,6 @@
 #ifndef _ASM_KMAP_TYPES_H
 #define _ASM_KMAP_TYPES_H
 
-#define KM_TYPE_NR 17
+#define KM_TYPE_NR 18
 
 #endif
diff --git a/arch/frv/mm/elf-fdpic.c b/arch/frv/mm/elf-fdpic.c
index 836f147..4cf23f5 100644
--- a/arch/frv/mm/elf-fdpic.c
+++ b/arch/frv/mm/elf-fdpic.c
@@ -61,6 +61,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 {
 	struct vm_area_struct *vma;
 	struct vm_unmapped_area_info info;
+	unsigned long offset = gr_rand_threadstack_offset(current->mm, filp, flags);
 
 	if (len > TASK_SIZE)
 		return -ENOMEM;
@@ -73,8 +74,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 	if (addr) {
 		addr = PAGE_ALIGN(addr);
 		vma = find_vma(current->mm, addr);
-		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
 			goto success;
 	}
 
@@ -85,6 +85,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 	info.high_limit = (current->mm->start_stack - 0x00200000);
 	info.align_mask = 0;
 	info.align_offset = 0;
+	info.threadstack_offset = offset;
 	addr = vm_unmapped_area(&info);
 	if (!(addr & ~PAGE_MASK))
 		goto success;
diff --git a/arch/hexagon/include/asm/cache.h b/arch/hexagon/include/asm/cache.h
index 69952c18..4fa2908 100644
--- a/arch/hexagon/include/asm/cache.h
+++ b/arch/hexagon/include/asm/cache.h
@@ -21,9 +21,11 @@
 #ifndef __ASM_CACHE_H
 #define __ASM_CACHE_H
 
+#include <linux/const.h>
+
 /* Bytes per L1 cache line */
-#define L1_CACHE_SHIFT		(5)
-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
+#define L1_CACHE_SHIFT		5
+#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
 
 #define ARCH_DMA_MINALIGN	L1_CACHE_BYTES
 
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index b534eba..ace220a 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -518,6 +518,7 @@ config KEXEC
 	bool "kexec system call"
 	depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
 	select KEXEC_CORE
+	depends on !GRKERNSEC_KMEM
 	help
 	  kexec is a system call that implements the ability to shutdown your
 	  current kernel, and to start another kernel.  It is like a reboot
diff --git a/arch/ia64/Makefile b/arch/ia64/Makefile
index 970d0bd..e750b9b 100644
--- a/arch/ia64/Makefile
+++ b/arch/ia64/Makefile
@@ -98,5 +98,6 @@ endef
 archprepare: make_nr_irqs_h FORCE
 PHONY += make_nr_irqs_h FORCE
 
+make_nr_irqs_h: KBUILD_CFLAGS := $(filter-out $(GCC_PLUGINS_CFLAGS),$(KBUILD_CFLAGS))
 make_nr_irqs_h: FORCE
 	$(Q)$(MAKE) $(build)=arch/ia64/kernel include/generated/nr-irqs.h
diff --git a/arch/ia64/include/asm/atomic.h b/arch/ia64/include/asm/atomic.h
index 8dfb5f6..d58bd69 100644
--- a/arch/ia64/include/asm/atomic.h
+++ b/arch/ia64/include/asm/atomic.h
@@ -209,4 +209,14 @@ atomic64_add_negative (__s64 i, atomic64_t *v)
 #define atomic64_inc(v)			atomic64_add(1, (v))
 #define atomic64_dec(v)			atomic64_sub(1, (v))
 
+#define atomic64_read_unchecked(v)		atomic64_read(v)
+#define atomic64_set_unchecked(v, i)		atomic64_set((v), (i))
+#define atomic64_add_unchecked(a, v)		atomic64_add((a), (v))
+#define atomic64_add_return_unchecked(a, v)	atomic64_add_return((a), (v))
+#define atomic64_sub_unchecked(a, v)		atomic64_sub((a), (v))
+#define atomic64_inc_unchecked(v)		atomic64_inc(v)
+#define atomic64_inc_return_unchecked(v)	atomic64_inc_return(v)
+#define atomic64_dec_unchecked(v)		atomic64_dec(v)
+#define atomic64_cmpxchg_unchecked(v, o, n)	atomic64_cmpxchg((v), (o), (n))
+
 #endif /* _ASM_IA64_ATOMIC_H */
diff --git a/arch/ia64/include/asm/cache.h b/arch/ia64/include/asm/cache.h
index 988254a..e1ee885 100644
--- a/arch/ia64/include/asm/cache.h
+++ b/arch/ia64/include/asm/cache.h
@@ -1,6 +1,7 @@
 #ifndef _ASM_IA64_CACHE_H
 #define _ASM_IA64_CACHE_H
 
+#include <linux/const.h>
 
 /*
  * Copyright (C) 1998-2000 Hewlett-Packard Co
@@ -9,7 +10,7 @@
 
 /* Bytes per L1 (data) cache line.  */
 #define L1_CACHE_SHIFT		CONFIG_IA64_L1_CACHE_SHIFT
-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
+#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
 
 #ifdef CONFIG_SMP
 # define SMP_CACHE_SHIFT	L1_CACHE_SHIFT
diff --git a/arch/ia64/include/asm/elf.h b/arch/ia64/include/asm/elf.h
index 5a83c5c..4d7f553 100644
--- a/arch/ia64/include/asm/elf.h
+++ b/arch/ia64/include/asm/elf.h
@@ -42,6 +42,13 @@
  */
 #define ELF_ET_DYN_BASE		(TASK_UNMAPPED_BASE + 0x800000000UL)
 
+#ifdef CONFIG_PAX_ASLR
+#define PAX_ELF_ET_DYN_BASE	(current->personality == PER_LINUX32 ? 0x08048000UL : 0x4000000000000000UL)
+
+#define PAX_DELTA_MMAP_LEN	(current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13)
+#define PAX_DELTA_STACK_LEN	(current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13)
+#endif
+
 #define PT_IA_64_UNWIND		0x70000001
 
 /* IA-64 relocations: */
diff --git a/arch/ia64/include/asm/pgalloc.h b/arch/ia64/include/asm/pgalloc.h
index f5e70e9..624fad5 100644
--- a/arch/ia64/include/asm/pgalloc.h
+++ b/arch/ia64/include/asm/pgalloc.h
@@ -39,6 +39,12 @@ pgd_populate(struct mm_struct *mm, pgd_t * pgd_entry, pud_t * pud)
 	pgd_val(*pgd_entry) = __pa(pud);
 }
 
+static inline void
+pgd_populate_kernel(struct mm_struct *mm, pgd_t * pgd_entry, pud_t * pud)
+{
+	pgd_populate(mm, pgd_entry, pud);
+}
+
 static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
 {
 	return quicklist_alloc(0, GFP_KERNEL, NULL);
@@ -57,6 +63,12 @@ pud_populate(struct mm_struct *mm, pud_t * pud_entry, pmd_t * pmd)
 	pud_val(*pud_entry) = __pa(pmd);
 }
 
+static inline void
+pud_populate_kernel(struct mm_struct *mm, pud_t * pud_entry, pmd_t * pmd)
+{
+	pud_populate(mm, pud_entry, pmd);
+}
+
 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
 {
 	return quicklist_alloc(0, GFP_KERNEL, NULL);
diff --git a/arch/ia64/include/asm/pgtable.h b/arch/ia64/include/asm/pgtable.h
index 9f3ed9e..c99b418 100644
--- a/arch/ia64/include/asm/pgtable.h
+++ b/arch/ia64/include/asm/pgtable.h
@@ -12,7 +12,7 @@
  *	David Mosberger-Tang <davidm@hpl.hp.com>
  */
 
-
+#include <linux/const.h>
 #include <asm/mman.h>
 #include <asm/page.h>
 #include <asm/processor.h>
@@ -139,6 +139,17 @@
 #define PAGE_READONLY	__pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
 #define PAGE_COPY	__pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
 #define PAGE_COPY_EXEC	__pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_RX)
+
+#ifdef CONFIG_PAX_PAGEEXEC
+# define PAGE_SHARED_NOEXEC	__pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_RW)
+# define PAGE_READONLY_NOEXEC	__pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
+# define PAGE_COPY_NOEXEC	__pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
+#else
+# define PAGE_SHARED_NOEXEC	PAGE_SHARED
+# define PAGE_READONLY_NOEXEC	PAGE_READONLY
+# define PAGE_COPY_NOEXEC	PAGE_COPY
+#endif
+
 #define PAGE_GATE	__pgprot(__ACCESS_BITS | _PAGE_PL_0 | _PAGE_AR_X_RX)
 #define PAGE_KERNEL	__pgprot(__DIRTY_BITS  | _PAGE_PL_0 | _PAGE_AR_RWX)
 #define PAGE_KERNELRX	__pgprot(__ACCESS_BITS | _PAGE_PL_0 | _PAGE_AR_RX)
diff --git a/arch/ia64/include/asm/spinlock.h b/arch/ia64/include/asm/spinlock.h
index 45698cd..e8e2dbc 100644
--- a/arch/ia64/include/asm/spinlock.h
+++ b/arch/ia64/include/asm/spinlock.h
@@ -71,7 +71,7 @@ static __always_inline void __ticket_spin_unlock(arch_spinlock_t *lock)
 	unsigned short	*p = (unsigned short *)&lock->lock + 1, tmp;
 
 	asm volatile ("ld2.bias %0=[%1]" : "=r"(tmp) : "r"(p));
-	ACCESS_ONCE(*p) = (tmp + 2) & ~1;
+	ACCESS_ONCE_RW(*p) = (tmp + 2) & ~1;
 }
 
 static __always_inline void __ticket_spin_unlock_wait(arch_spinlock_t *lock)
diff --git a/arch/ia64/include/asm/uaccess.h b/arch/ia64/include/asm/uaccess.h
index 2189d5d..420134b 100644
--- a/arch/ia64/include/asm/uaccess.h
+++ b/arch/ia64/include/asm/uaccess.h
@@ -70,6 +70,7 @@
 	 && ((segment).seg == KERNEL_DS.seg						\
 	     || likely(REGION_OFFSET((unsigned long) (addr)) < RGN_MAP_LIMIT)));	\
 })
+#define access_ok_noprefault(type, addr, size) access_ok((type), (addr), (size))
 #define access_ok(type, addr, size)	__access_ok((addr), (size), get_fs())
 
 /*
@@ -241,12 +242,24 @@ extern unsigned long __must_check __copy_user (void __user *to, const void __use
 static inline unsigned long
 __copy_to_user (void __user *to, const void *from, unsigned long count)
 {
+	if (count > INT_MAX)
+		return count;
+
+	if (!__builtin_constant_p(count))
+		check_object_size(from, count, true);
+
 	return __copy_user(to, (__force void __user *) from, count);
 }
 
 static inline unsigned long
 __copy_from_user (void *to, const void __user *from, unsigned long count)
 {
+	if (count > INT_MAX)
+		return count;
+
+	if (!__builtin_constant_p(count))
+		check_object_size(to, count, false);
+
 	return __copy_user((__force void __user *) to, from, count);
 }
 
@@ -256,10 +269,13 @@ __copy_from_user (void *to, const void __user *from, unsigned long count)
 ({											\
 	void __user *__cu_to = (to);							\
 	const void *__cu_from = (from);							\
-	long __cu_len = (n);								\
+	unsigned long __cu_len = (n);							\
 											\
-	if (__access_ok(__cu_to, __cu_len, get_fs()))					\
+	if (__cu_len <= INT_MAX && __access_ok(__cu_to, __cu_len, get_fs())) {		\
+		if (!__builtin_constant_p(n))						\
+			check_object_size(__cu_from, __cu_len, true);			\
 		__cu_len = __copy_user(__cu_to, (__force void __user *) __cu_from, __cu_len);	\
+	}										\
 	__cu_len;									\
 })
 
@@ -267,11 +283,14 @@ __copy_from_user (void *to, const void __user *from, unsigned long count)
 ({											\
 	void *__cu_to = (to);								\
 	const void __user *__cu_from = (from);						\
-	long __cu_len = (n);								\
+	unsigned long __cu_len = (n);							\
 											\
 	__chk_user_ptr(__cu_from);							\
-	if (__access_ok(__cu_from, __cu_len, get_fs()))					\
+	if (__cu_len <= INT_MAX  && __access_ok(__cu_from, __cu_len, get_fs())) {	\
+		if (!__builtin_constant_p(n))						\
+			check_object_size(__cu_to, __cu_len, false);			\
 		__cu_len = __copy_user((__force void __user *) __cu_to, __cu_from, __cu_len);	\
+	}										\
 	__cu_len;									\
 })
 
diff --git a/arch/ia64/kernel/module.c b/arch/ia64/kernel/module.c
index 6ab0ae7..88f1b60 100644
--- a/arch/ia64/kernel/module.c
+++ b/arch/ia64/kernel/module.c
@@ -486,13 +486,13 @@ module_frob_arch_sections (Elf_Ehdr *ehdr, Elf_Shdr *sechdrs, char *secstrings,
 static inline int
 in_init (const struct module *mod, uint64_t addr)
 {
-	return addr - (uint64_t) mod->init_layout.base < mod->init_layout.size;
+	return within_module_init(addr, mod);
 }
 
 static inline int
 in_core (const struct module *mod, uint64_t addr)
 {
-	return addr - (uint64_t) mod->core_layout.base < mod->core_layout.size;
+	return within_module_core(addr, mod);
 }
 
 static inline int
@@ -676,6 +676,14 @@ do_reloc (struct module *mod, uint8_t r_type, Elf64_Sym *sym, uint64_t addend,
 
 	      case RV_BDREL:
 		val -= (uint64_t) (in_init(mod, val) ? mod->init_layout.base : mod->core_layout.base);
+		if (within_module_rx(val, &mod->init_layout))
+			val -= mod->init_layout.base_rx;
+		else if (within_module_rw(val, &mod->init_layout))
+			val -= mod->init_layout.base_rw;
+		else if (within_module_rx(val, &mod->core_layout))
+			val -= mod->core_layout.base_rx;
+		else if (within_module_rw(val, &mod->core_layout))
+			val -= mod->core_layout.base_rw;
 		break;
 
 	      case RV_LTV:
@@ -810,15 +818,15 @@ apply_relocate_add (Elf64_Shdr *sechdrs, const char *strtab, unsigned int symind
 		 *     addresses have been selected...
 		 */
 		uint64_t gp;
-		if (mod->core_layout.size > MAX_LTOFF)
+		if (mod->core_layout.size_rx + mod->core_layout.size_rw > MAX_LTOFF)
 			/*
 			 * This takes advantage of fact that SHF_ARCH_SMALL gets allocated
 			 * at the end of the module.
 			 */
-			gp = mod->core_layout.size - MAX_LTOFF / 2;
+			gp = mod->core_layout.size_rx + mod->core_layout.size_rw - MAX_LTOFF / 2;
 		else
-			gp = mod->core_layout.size / 2;
-		gp = (uint64_t) mod->core_layout.base + ((gp + 7) & -8);
+			gp = (mod->core_layout.size_rx + mod->core_layout.size_rw) / 2;
+		gp = (uint64_t) mod->core_layout.base_rx + ((gp + 7) & -8);
 		mod->arch.gp = gp;
 		DEBUGP("%s: placing gp at 0x%lx\n", __func__, gp);
 	}
diff --git a/arch/ia64/kernel/palinfo.c b/arch/ia64/kernel/palinfo.c
index c39c3cd..3c77738 100644
--- a/arch/ia64/kernel/palinfo.c
+++ b/arch/ia64/kernel/palinfo.c
@@ -980,7 +980,7 @@ static int palinfo_cpu_callback(struct notifier_block *nfb,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __refdata palinfo_cpu_notifier =
+static struct notifier_block palinfo_cpu_notifier =
 {
 	.notifier_call = palinfo_cpu_callback,
 	.priority = 0,
diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c
index 41e33f8..65180b2a 100644
--- a/arch/ia64/kernel/sys_ia64.c
+++ b/arch/ia64/kernel/sys_ia64.c
@@ -28,6 +28,7 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
 	unsigned long align_mask = 0;
 	struct mm_struct *mm = current->mm;
 	struct vm_unmapped_area_info info;
+	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
 
 	if (len > RGN_MAP_LIMIT)
 		return -ENOMEM;
@@ -43,6 +44,13 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
 	if (REGION_NUMBER(addr) == RGN_HPAGE)
 		addr = 0;
 #endif
+
+#ifdef CONFIG_PAX_RANDMMAP
+	if (mm->pax_flags & MF_PAX_RANDMMAP)
+		addr = mm->free_area_cache;
+	else
+#endif
+
 	if (!addr)
 		addr = TASK_UNMAPPED_BASE;
 
@@ -61,6 +69,7 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
 	info.high_limit = TASK_SIZE;
 	info.align_mask = align_mask;
 	info.align_offset = 0;
+	info.threadstack_offset = offset;
 	return vm_unmapped_area(&info);
 }
 
diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S
index dc506b0..39baade 100644
--- a/arch/ia64/kernel/vmlinux.lds.S
+++ b/arch/ia64/kernel/vmlinux.lds.S
@@ -171,7 +171,7 @@ SECTIONS {
 	/* Per-cpu data: */
 	. = ALIGN(PERCPU_PAGE_SIZE);
 	PERCPU_VADDR(SMP_CACHE_BYTES, PERCPU_ADDR, :percpu)
-	__phys_per_cpu_start = __per_cpu_load;
+	__phys_per_cpu_start = per_cpu_load;
 	/*
 	 * ensure percpu data fits
 	 * into percpu page size
diff --git a/arch/ia64/mm/fault.c b/arch/ia64/mm/fault.c
index 70b40d1..01a9a28 100644
--- a/arch/ia64/mm/fault.c
+++ b/arch/ia64/mm/fault.c
@@ -72,6 +72,23 @@ mapped_kernel_page_is_present (unsigned long address)
 	return pte_present(pte);
 }
 
+#ifdef CONFIG_PAX_PAGEEXEC
+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
+{
+	unsigned long i;
+
+	printk(KERN_ERR "PAX: bytes at PC: ");
+	for (i = 0; i < 8; i++) {
+		unsigned int c;
+		if (get_user(c, (unsigned int *)pc+i))
+			printk(KERN_CONT "???????? ");
+		else
+			printk(KERN_CONT "%08x ", c);
+	}
+	printk("\n");
+}
+#endif
+
 #	define VM_READ_BIT	0
 #	define VM_WRITE_BIT	1
 #	define VM_EXEC_BIT	2
@@ -151,8 +168,21 @@ retry:
 	if (((isr >> IA64_ISR_R_BIT) & 1UL) && (!(vma->vm_flags & (VM_READ | VM_WRITE))))
 		goto bad_area;
 
-	if ((vma->vm_flags & mask) != mask)
+	if ((vma->vm_flags & mask) != mask) {
+
+#ifdef CONFIG_PAX_PAGEEXEC
+		if (!(vma->vm_flags & VM_EXEC) && (mask & VM_EXEC)) {
+			if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || address != regs->cr_iip)
+				goto bad_area;
+
+			up_read(&mm->mmap_sem);
+			pax_report_fault(regs, (void *)regs->cr_iip, (void *)regs->r12);
+			do_group_exit(SIGKILL);
+		}
+#endif
+
 		goto bad_area;
+	}
 
 	/*
 	 * If for any reason at all we couldn't handle the fault, make
diff --git a/arch/ia64/mm/hugetlbpage.c b/arch/ia64/mm/hugetlbpage.c
index 85de86d..db7f6b8 100644
--- a/arch/ia64/mm/hugetlbpage.c
+++ b/arch/ia64/mm/hugetlbpage.c
@@ -138,6 +138,7 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, u
 		unsigned long pgoff, unsigned long flags)
 {
 	struct vm_unmapped_area_info info;
+	unsigned long offset = gr_rand_threadstack_offset(current->mm, file, flags);
 
 	if (len > RGN_MAP_LIMIT)
 		return -ENOMEM;
@@ -161,6 +162,7 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, u
 	info.high_limit = HPAGE_REGION_BASE + RGN_MAP_LIMIT;
 	info.align_mask = PAGE_MASK & (HPAGE_SIZE - 1);
 	info.align_offset = 0;
+	info.threadstack_offset = offset;
 	return vm_unmapped_area(&info);
 }
 
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index 1841ef6..74d8330 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -119,6 +119,19 @@ ia64_init_addr_space (void)
 		vma->vm_start = current->thread.rbs_bot & PAGE_MASK;
 		vma->vm_end = vma->vm_start + PAGE_SIZE;
 		vma->vm_flags = VM_DATA_DEFAULT_FLAGS|VM_GROWSUP|VM_ACCOUNT;
+
+#ifdef CONFIG_PAX_PAGEEXEC
+		if (current->mm->pax_flags & MF_PAX_PAGEEXEC) {
+			vma->vm_flags &= ~VM_EXEC;
+
+#ifdef CONFIG_PAX_MPROTECT
+			if (current->mm->pax_flags & MF_PAX_MPROTECT)
+				vma->vm_flags &= ~VM_MAYEXEC;
+#endif
+
+		}
+#endif
+
 		vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
 		down_write(&current->mm->mmap_sem);
 		if (insert_vm_struct(current->mm, vma)) {
@@ -279,7 +292,7 @@ static int __init gate_vma_init(void)
 	gate_vma.vm_start = FIXADDR_USER_START;
 	gate_vma.vm_end = FIXADDR_USER_END;
 	gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC;
-	gate_vma.vm_page_prot = __P101;
+	gate_vma.vm_page_prot = vm_get_page_prot(gate_vma.vm_flags);
 
 	return 0;
 }
diff --git a/arch/m32r/include/asm/cache.h b/arch/m32r/include/asm/cache.h
index 40b3ee98..8c2c112 100644
--- a/arch/m32r/include/asm/cache.h
+++ b/arch/m32r/include/asm/cache.h
@@ -1,8 +1,10 @@
 #ifndef _ASM_M32R_CACHE_H
 #define _ASM_M32R_CACHE_H
 
+#include <linux/const.h>
+
 /* L1 cache line size */
 #define L1_CACHE_SHIFT		4
-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
+#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
 
 #endif  /* _ASM_M32R_CACHE_H */
diff --git a/arch/m32r/lib/usercopy.c b/arch/m32r/lib/usercopy.c
index 82abd15..d95ae5d 100644
--- a/arch/m32r/lib/usercopy.c
+++ b/arch/m32r/lib/usercopy.c
@@ -14,6 +14,9 @@
 unsigned long
 __generic_copy_to_user(void __user *to, const void *from, unsigned long n)
 {
+	if ((long)n < 0)
+		return n;
+
 	prefetch(from);
 	if (access_ok(VERIFY_WRITE, to, n))
 		__copy_user(to,from,n);
@@ -23,6 +26,9 @@ __generic_copy_to_user(void __user *to, const void *from, unsigned long n)
 unsigned long
 __generic_copy_from_user(void *to, const void __user *from, unsigned long n)
 {
+	if ((long)n < 0)
+		return n;
+
 	prefetchw(to);
 	if (access_ok(VERIFY_READ, from, n))
 		__copy_user_zeroing(to,from,n);
diff --git a/arch/m68k/include/asm/cache.h b/arch/m68k/include/asm/cache.h
index 0395c51..5f26031 100644
--- a/arch/m68k/include/asm/cache.h
+++ b/arch/m68k/include/asm/cache.h
@@ -4,9 +4,11 @@
 #ifndef __ARCH_M68K_CACHE_H
 #define __ARCH_M68K_CACHE_H
 
+#include <linux/const.h>
+
 /* bytes per L1 cache line */
 #define        L1_CACHE_SHIFT  4
-#define        L1_CACHE_BYTES  (1<< L1_CACHE_SHIFT)
+#define        L1_CACHE_BYTES  (_AC(1,UL) << L1_CACHE_SHIFT)
 
 #define ARCH_DMA_MINALIGN	L1_CACHE_BYTES
 
diff --git a/arch/metag/mm/hugetlbpage.c b/arch/metag/mm/hugetlbpage.c
index b38700ae..15f5c87 100644
--- a/arch/metag/mm/hugetlbpage.c
+++ b/arch/metag/mm/hugetlbpage.c
@@ -189,6 +189,7 @@ hugetlb_get_unmapped_area_new_pmd(unsigned long len)
 	info.high_limit = TASK_SIZE;
 	info.align_mask = PAGE_MASK & HUGEPT_MASK;
 	info.align_offset = 0;
+	info.threadstack_offset = 0;
 	return vm_unmapped_area(&info);
 }
 
diff --git a/arch/microblaze/include/asm/cache.h b/arch/microblaze/include/asm/cache.h
index 4efe96a..60e8699 100644
--- a/arch/microblaze/include/asm/cache.h
+++ b/arch/microblaze/include/asm/cache.h
@@ -13,11 +13,12 @@
 #ifndef _ASM_MICROBLAZE_CACHE_H
 #define _ASM_MICROBLAZE_CACHE_H
 
+#include <linux/const.h>
 #include <asm/registers.h>
 
 #define L1_CACHE_SHIFT 5
 /* word-granular cache in microblaze */
-#define L1_CACHE_BYTES	(1 << L1_CACHE_SHIFT)
+#define L1_CACHE_BYTES	(_AC(1,UL) << L1_CACHE_SHIFT)
 
 #define SMP_CACHE_BYTES	L1_CACHE_BYTES
 
diff --git a/arch/mips/Kbuild b/arch/mips/Kbuild
index 5c3f688..f8cc1b3 100644
--- a/arch/mips/Kbuild
+++ b/arch/mips/Kbuild
@@ -1,7 +1,7 @@
 # Fail on warnings - also for files referenced in subdirs
 # -Werror can be disabled for specific files using:
 # CFLAGS_<file.o> := -Wno-error
-subdir-ccflags-y := -Werror
+# subdir-ccflags-y := -Werror
 
 # platform specific definitions
 include arch/mips/Kbuild.platforms
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 2018c2b..fdd3972 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -49,6 +49,7 @@ config MIPS
 	select GENERIC_CMOS_UPDATE
 	select HAVE_MOD_ARCH_SPECIFIC
 	select VIRT_TO_BUS
+	select HAVE_GCC_PLUGINS
 	select MODULES_USE_ELF_REL if MODULES
 	select MODULES_USE_ELF_RELA if MODULES && 64BIT
 	select CLONE_BACKWARDS
@@ -2648,6 +2649,7 @@ source "kernel/Kconfig.preempt"
 config KEXEC
 	bool "Kexec system call"
 	select KEXEC_CORE
+	depends on !GRKERNSEC_KMEM
 	help
 	  kexec is a system call that implements the ability to shutdown your
 	  current kernel, and to start another kernel.  It is like a reboot
diff --git a/arch/mips/cavium-octeon/dma-octeon.c b/arch/mips/cavium-octeon/dma-octeon.c
index 2cd45f5..d0f4900 100644
--- a/arch/mips/cavium-octeon/dma-octeon.c
+++ b/arch/mips/cavium-octeon/dma-octeon.c
@@ -191,7 +191,7 @@ static void *octeon_dma_alloc_coherent(struct device *dev, size_t size,
 static void octeon_dma_free_coherent(struct device *dev, size_t size,
 	void *vaddr, dma_addr_t dma_handle, struct dma_attrs *attrs)
 {
-	swiotlb_free_coherent(dev, size, vaddr, dma_handle);
+	swiotlb_free_coherent(dev, size, vaddr, dma_handle, attrs);
 }
 
 static dma_addr_t octeon_unity_phys_to_dma(struct device *dev, phys_addr_t paddr)
diff --git a/arch/mips/include/asm/atomic.h b/arch/mips/include/asm/atomic.h
index 835b402..347a797 100644
--- a/arch/mips/include/asm/atomic.h
+++ b/arch/mips/include/asm/atomic.h
@@ -22,15 +22,39 @@
 #include <asm/cmpxchg.h>
 #include <asm/war.h>
 
+#ifdef CONFIG_GENERIC_ATOMIC64
+#include <asm-generic/atomic64.h>
+#endif
+
 #define ATOMIC_INIT(i)	  { (i) }
 
+#ifdef CONFIG_64BIT
+#define _ASM_EXTABLE(from, to)		\
+"	.section __ex_table,\"a\"\n"	\
+"	.dword	" #from ", " #to"\n"	\
+"	.previous\n"
+#else
+#define _ASM_EXTABLE(from, to)		\
+"	.section __ex_table,\"a\"\n"	\
+"	.word	" #from ", " #to"\n"	\
+"	.previous\n"
+#endif
+
 /*
  * atomic_read - read atomic variable
  * @v: pointer of type atomic_t
  *
  * Atomically reads the value of @v.
  */
-#define atomic_read(v)		READ_ONCE((v)->counter)
+static inline int atomic_read(const atomic_t *v)
+{
+	return READ_ONCE(v->counter);
+}
+
+static inline int atomic_read_unchecked(const atomic_unchecked_t *v)
+{
+	return READ_ONCE(v->counter);
+}
 
 /*
  * atomic_set - set atomic variable
@@ -39,47 +63,77 @@
  *
  * Atomically sets the value of @v to @i.
  */
-#define atomic_set(v, i)	WRITE_ONCE((v)->counter, (i))
+static inline void atomic_set(atomic_t *v, int i)
+{
+	WRITE_ONCE(v->counter, i);
+}
 
-#define ATOMIC_OP(op, c_op, asm_op)					      \
-static __inline__ void atomic_##op(int i, atomic_t * v)			      \
+static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i)
+{
+	WRITE_ONCE(v->counter, i);
+}
+
+#ifdef CONFIG_PAX_REFCOUNT
+#define __OVERFLOW_POST				\
+	"	b	4f		\n"	\
+	"	.set	noreorder	\n"	\
+	"3:	b	5f		\n"	\
+	"	move	%0, %1		\n"	\
+	"	.set	reorder		\n"
+#define __OVERFLOW_EXTABLE	\
+	"3:\n"			\
+	_ASM_EXTABLE(2b, 3b)
+#else
+#define __OVERFLOW_POST
+#define __OVERFLOW_EXTABLE
+#endif
+
+#define __ATOMIC_OP(op, suffix, asm_op, extable)			      \
+static inline void atomic_##op##suffix(int i, atomic##suffix##_t * v)	      \
 {									      \
 	if (kernel_uses_llsc && R10000_LLSC_WAR) {			      \
 		int temp;						      \
 									      \
 		__asm__ __volatile__(					      \
-		"	.set	arch=r4000				\n"   \
-		"1:	ll	%0, %1		# atomic_" #op "	\n"   \
-		"	" #asm_op " %0, %2				\n"   \
+		"	.set	mips3					\n"   \
+		"1:	ll	%0, %1		# atomic_" #op #suffix "\n"   \
+		"2:	" #asm_op " %0, %2				\n"   \
 		"	sc	%0, %1					\n"   \
 		"	beqzl	%0, 1b					\n"   \
+		extable							      \
 		"	.set	mips0					\n"   \
 		: "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (v->counter)	      \
 		: "Ir" (i));						      \
 	} else if (kernel_uses_llsc) {					      \
 		int temp;						      \
 									      \
-		do {							      \
-			__asm__ __volatile__(				      \
-			"	.set	"MIPS_ISA_LEVEL"		\n"   \
-			"	ll	%0, %1		# atomic_" #op "\n"   \
-			"	" #asm_op " %0, %2			\n"   \
-			"	sc	%0, %1				\n"   \
-			"	.set	mips0				\n"   \
-			: "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (v->counter)      \
-			: "Ir" (i));					      \
-		} while (unlikely(!temp));				      \
+		__asm__ __volatile__(					      \
+		"	.set	"MIPS_ISA_LEVEL"			\n"   \
+		"1:	ll	%0, %1		# atomic_" #op #suffix "\n"   \
+		"2:	" #asm_op " %0, %2				\n"   \
+		"	sc	%0, %1					\n"   \
+		"	beqz	%0, 1b					\n"   \
+			extable						      \
+		"	.set	mips0					\n"   \
+		: "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (v->counter)	      \
+		: "Ir" (i));						      \
 	} else {							      \
 		unsigned long flags;					      \
 									      \
 		raw_local_irq_save(flags);				      \
-		v->counter c_op i;					      \
+		__asm__ __volatile__(					      \
+		"2:	" #asm_op " %0, %1				\n"   \
+		extable							      \
+		: "+r" (v->counter) : "Ir" (i));			      \
 		raw_local_irq_restore(flags);				      \
 	}								      \
 }
 
-#define ATOMIC_OP_RETURN(op, c_op, asm_op)				      \
-static __inline__ int atomic_##op##_return(int i, atomic_t * v)		      \
+#define ATOMIC_OP(op, asm_op) __ATOMIC_OP(op, _unchecked, asm_op##u, )	      \
+			      __ATOMIC_OP(op, , asm_op, __OVERFLOW_EXTABLE)
+
+#define __ATOMIC_OP_RETURN(op, suffix, asm_op, post_op, extable)	      \
+static inline int atomic_##op##_return##suffix(int i, atomic##suffix##_t * v) \
 {									      \
 	int result;							      \
 									      \
@@ -89,12 +143,15 @@ static __inline__ int atomic_##op##_return(int i, atomic_t * v)		      \
 		int temp;						      \
 									      \
 		__asm__ __volatile__(					      \
-		"	.set	arch=r4000				\n"   \
-		"1:	ll	%1, %2		# atomic_" #op "_return	\n"   \
-		"	" #asm_op " %0, %1, %3				\n"   \
+		"	.set	mips3					\n"   \
+		"1:	ll	%1, %2	# atomic_" #op "_return" #suffix"\n"  \
+		"2:	" #asm_op " %0, %1, %3				\n"   \
 		"	sc	%0, %2					\n"   \
 		"	beqzl	%0, 1b					\n"   \
-		"	" #asm_op " %0, %1, %3				\n"   \
+		post_op							      \
+		extable							      \
+		"4:	" #asm_op " %0, %1, %3				\n"   \
+		"5:							\n"   \
 		"	.set	mips0					\n"   \
 		: "=&r" (result), "=&r" (temp),				      \
 		  "+" GCC_OFF_SMALL_ASM() (v->counter)			      \
@@ -102,26 +159,31 @@ static __inline__ int atomic_##op##_return(int i, atomic_t * v)		      \
 	} else if (kernel_uses_llsc) {					      \
 		int temp;						      \
 									      \
-		do {							      \
-			__asm__ __volatile__(				      \
-			"	.set	"MIPS_ISA_LEVEL"		\n"   \
-			"	ll	%1, %2	# atomic_" #op "_return	\n"   \
-			"	" #asm_op " %0, %1, %3			\n"   \
-			"	sc	%0, %2				\n"   \
-			"	.set	mips0				\n"   \
-			: "=&r" (result), "=&r" (temp),			      \
-			  "+" GCC_OFF_SMALL_ASM() (v->counter)		      \
-			: "Ir" (i));					      \
-		} while (unlikely(!result));				      \
-									      \
-		result = temp; result c_op i;				      \
+		__asm__ __volatile__(					      \
+		"	.set	"MIPS_ISA_LEVEL"			\n"   \
+		"1:	ll	%1, %2	# atomic_" #op "_return" #suffix "\n" \
+		"2:	" #asm_op " %0, %1, %3				\n"   \
+		"	sc	%0, %2					\n"   \
+		post_op							      \
+		extable							      \
+		"4:	" #asm_op " %0, %1, %3				\n"   \
+		"5:							\n"   \
+		"	.set	mips0					\n"   \
+		: "=&r" (result), "=&r" (temp),				      \
+		  "+" GCC_OFF_SMALL_ASM() (v->counter)			      \
+		: "Ir" (i));						      \
 	} else {							      \
 		unsigned long flags;					      \
 									      \
 		raw_local_irq_save(flags);				      \
-		result = v->counter;					      \
-		result c_op i;						      \
-		v->counter = result;					      \
+		__asm__ __volatile__(					      \
+		"	lw	%0, %1					\n"   \
+		"2:	" #asm_op " %0, %1, %2				\n"   \
+		"	sw	%0, %1					\n"   \
+		"3:							\n"   \
+		extable							      \
+		: "=&r" (result), "+" GCC_OFF_SMALL_ASM() (v->counter)	      \
+		: "Ir" (i));						      \
 		raw_local_irq_restore(flags);				      \
 	}								      \
 									      \
@@ -130,20 +192,25 @@ static __inline__ int atomic_##op##_return(int i, atomic_t * v)		      \
 	return result;							      \
 }
 
-#define ATOMIC_OPS(op, c_op, asm_op)					      \
-	ATOMIC_OP(op, c_op, asm_op)					      \
-	ATOMIC_OP_RETURN(op, c_op, asm_op)
+#define ATOMIC_OP_RETURN(op, asm_op) __ATOMIC_OP_RETURN(op, _unchecked, asm_op##u, , )	\
+				     __ATOMIC_OP_RETURN(op, , asm_op, __OVERFLOW_POST, __OVERFLOW_EXTABLE)
 
-ATOMIC_OPS(add, +=, addu)
-ATOMIC_OPS(sub, -=, subu)
+#define ATOMIC_OPS(op, asm_op)						      \
+	ATOMIC_OP(op, asm_op)						      \
+	ATOMIC_OP_RETURN(op, asm_op)
 
-ATOMIC_OP(and, &=, and)
-ATOMIC_OP(or, |=, or)
-ATOMIC_OP(xor, ^=, xor)
+ATOMIC_OPS(add, add)
+ATOMIC_OPS(sub, sub)
+
+ATOMIC_OP(and, and)
+ATOMIC_OP(or, or)
+ATOMIC_OP(xor, xor)
 
 #undef ATOMIC_OPS
 #undef ATOMIC_OP_RETURN
+#undef __ATOMIC_OP_RETURN
 #undef ATOMIC_OP
+#undef __ATOMIC_OP
 
 /*
  * atomic_sub_if_positive - conditionally subtract integer from atomic variable
@@ -153,7 +220,7 @@ ATOMIC_OP(xor, ^=, xor)
  * Atomically test @v and subtract @i if @v is greater or equal than @i.
  * The function returns the old value of @v minus @i.
  */
-static __inline__ int atomic_sub_if_positive(int i, atomic_t * v)
+static __inline__ int atomic_sub_if_positive(int i, atomic_t *v)
 {
 	int result;
 
@@ -163,7 +230,7 @@ static __inline__ int atomic_sub_if_positive(int i, atomic_t * v)
 		int temp;
 
 		__asm__ __volatile__(
-		"	.set	arch=r4000				\n"
+		"	.set	"MIPS_ISA_LEVEL"			\n"
 		"1:	ll	%1, %2		# atomic_sub_if_positive\n"
 		"	subu	%0, %1, %3				\n"
 		"	bltz	%0, 1f					\n"
@@ -212,8 +279,26 @@ static __inline__ int atomic_sub_if_positive(int i, atomic_t * v)
 	return result;
 }
 
-#define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n)))
-#define atomic_xchg(v, new) (xchg(&((v)->counter), (new)))
+static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
+{
+	return cmpxchg(&v->counter, old, new);
+}
+
+static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old,
+					   int new)
+{
+	return cmpxchg(&(v->counter), old, new);
+}
+
+static inline int atomic_xchg(atomic_t *v, int new)
+{
+	return xchg(&v->counter, new);
+}
+
+static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new)
+{
+	return xchg(&(v->counter), new);
+}
 
 /**
  * __atomic_add_unless - add unless the number is a given value
@@ -241,6 +326,10 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
 
 #define atomic_dec_return(v) atomic_sub_return(1, (v))
 #define atomic_inc_return(v) atomic_add_return(1, (v))
+static __inline__ int atomic_inc_return_unchecked(atomic_unchecked_t *v)
+{
+	return atomic_add_return_unchecked(1, v);
+}
 
 /*
  * atomic_sub_and_test - subtract value from variable and test result
@@ -262,6 +351,10 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
  * other cases.
  */
 #define atomic_inc_and_test(v) (atomic_inc_return(v) == 0)
+static __inline__ int atomic_inc_and_test_unchecked(atomic_unchecked_t *v)
+{
+	return atomic_add_return_unchecked(1, v) == 0;
+}
 
 /*
  * atomic_dec_and_test - decrement by 1 and test
@@ -286,6 +379,10 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
  * Atomically increments @v by 1.
  */
 #define atomic_inc(v) atomic_add(1, (v))
+static __inline__ void atomic_inc_unchecked(atomic_unchecked_t *v)
+{
+	atomic_add_unchecked(1, v);
+}
 
 /*
  * atomic_dec - decrement and test
@@ -294,6 +391,10 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
  * Atomically decrements @v by 1.
  */
 #define atomic_dec(v) atomic_sub(1, (v))
+static __inline__ void atomic_dec_unchecked(atomic_unchecked_t *v)
+{
+	atomic_sub_unchecked(1, v);
+}
 
 /*
  * atomic_add_negative - add and test if negative
@@ -315,54 +416,77 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
  * @v: pointer of type atomic64_t
  *
  */
-#define atomic64_read(v)	READ_ONCE((v)->counter)
+static inline long atomic64_read(const atomic64_t *v)
+{
+	return READ_ONCE(v->counter);
+}
+
+static inline long atomic64_read_unchecked(const atomic64_unchecked_t *v)
+{
+	return READ_ONCE(v->counter);
+}
 
 /*
  * atomic64_set - set atomic variable
  * @v: pointer of type atomic64_t
  * @i: required value
  */
-#define atomic64_set(v, i)	WRITE_ONCE((v)->counter, (i))
+static inline void atomic64_set(atomic64_t *v, long i)
+{
+	WRITE_ONCE(v->counter, i);
+}
 
-#define ATOMIC64_OP(op, c_op, asm_op)					      \
-static __inline__ void atomic64_##op(long i, atomic64_t * v)		      \
+static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long i)
+{
+	WRITE_ONCE(v->counter, i);
+}
+
+#define __ATOMIC64_OP(op, suffix, asm_op, extable)			      \
+static inline void atomic64_##op##suffix(long i, atomic64##suffix##_t * v)    \
 {									      \
 	if (kernel_uses_llsc && R10000_LLSC_WAR) {			      \
 		long temp;						      \
 									      \
 		__asm__ __volatile__(					      \
-		"	.set	arch=r4000				\n"   \
-		"1:	lld	%0, %1		# atomic64_" #op "	\n"   \
-		"	" #asm_op " %0, %2				\n"   \
+		"	.set	"MIPS_ISA_LEVEL"			\n"   \
+		"1:	lld	%0, %1		# atomic64_" #op #suffix "\n" \
+		"2:	" #asm_op " %0, %2				\n"   \
 		"	scd	%0, %1					\n"   \
 		"	beqzl	%0, 1b					\n"   \
+		extable							      \
 		"	.set	mips0					\n"   \
 		: "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (v->counter)	      \
 		: "Ir" (i));						      \
 	} else if (kernel_uses_llsc) {					      \
 		long temp;						      \
 									      \
-		do {							      \
-			__asm__ __volatile__(				      \
-			"	.set	"MIPS_ISA_LEVEL"		\n"   \
-			"	lld	%0, %1		# atomic64_" #op "\n" \
-			"	" #asm_op " %0, %2			\n"   \
-			"	scd	%0, %1				\n"   \
-			"	.set	mips0				\n"   \
-			: "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (v->counter)      \
-			: "Ir" (i));					      \
-		} while (unlikely(!temp));				      \
+		__asm__ __volatile__(					      \
+		"	.set	"MIPS_ISA_LEVEL"			\n"   \
+		"1:	lld	%0, %1		# atomic64_" #op #suffix "\n" \
+		"2:	" #asm_op " %0, %2				\n"   \
+		"	scd	%0, %1					\n"   \
+		"	beqz	%0, 1b					\n"   \
+			extable						      \
+		"	.set	mips0					\n"   \
+		: "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (v->counter)	      \
+		: "Ir" (i));						      \
 	} else {							      \
 		unsigned long flags;					      \
 									      \
 		raw_local_irq_save(flags);				      \
-		v->counter c_op i;					      \
+		__asm__ __volatile__(					      \
+		"2:	" #asm_op " %0, %1				\n"   \
+		extable							      \
+		: "+" GCC_OFF_SMALL_ASM() (v->counter) : "Ir" (i));	      \
 		raw_local_irq_restore(flags);				      \
 	}								      \
 }
 
-#define ATOMIC64_OP_RETURN(op, c_op, asm_op)				      \
-static __inline__ long atomic64_##op##_return(long i, atomic64_t * v)	      \
+#define ATOMIC64_OP(op, asm_op) __ATOMIC64_OP(op, _unchecked, asm_op##u, )    \
+				__ATOMIC64_OP(op, , asm_op, __OVERFLOW_EXTABLE)
+
+#define __ATOMIC64_OP_RETURN(op, suffix, asm_op, post_op, extable)	      \
+static inline long atomic64_##op##_return##suffix(long i, atomic64##suffix##_t * v)\
 {									      \
 	long result;							      \
 									      \
@@ -372,12 +496,15 @@ static __inline__ long atomic64_##op##_return(long i, atomic64_t * v)	      \
 		long temp;						      \
 									      \
 		__asm__ __volatile__(					      \
-		"	.set	arch=r4000				\n"   \
+		"	.set	mips3					\n"   \
 		"1:	lld	%1, %2		# atomic64_" #op "_return\n"  \
-		"	" #asm_op " %0, %1, %3				\n"   \
+		"2:	" #asm_op " %0, %1, %3				\n"   \
 		"	scd	%0, %2					\n"   \
 		"	beqzl	%0, 1b					\n"   \
-		"	" #asm_op " %0, %1, %3				\n"   \
+		post_op							      \
+		extable							      \
+		"4:	" #asm_op " %0, %1, %3				\n"   \
+		"5:							\n"   \
 		"	.set	mips0					\n"   \
 		: "=&r" (result), "=&r" (temp),				      \
 		  "+" GCC_OFF_SMALL_ASM() (v->counter)			      \
@@ -385,27 +512,33 @@ static __inline__ long atomic64_##op##_return(long i, atomic64_t * v)	      \
 	} else if (kernel_uses_llsc) {					      \
 		long temp;						      \
 									      \
-		do {							      \
-			__asm__ __volatile__(				      \
-			"	.set	"MIPS_ISA_LEVEL"		\n"   \
-			"	lld	%1, %2	# atomic64_" #op "_return\n"  \
-			"	" #asm_op " %0, %1, %3			\n"   \
-			"	scd	%0, %2				\n"   \
-			"	.set	mips0				\n"   \
-			: "=&r" (result), "=&r" (temp),			      \
-			  "=" GCC_OFF_SMALL_ASM() (v->counter)		      \
-			: "Ir" (i), GCC_OFF_SMALL_ASM() (v->counter)	      \
-			: "memory");					      \
-		} while (unlikely(!result));				      \
-									      \
-		result = temp; result c_op i;				      \
+		__asm__ __volatile__(					      \
+		"	.set	"MIPS_ISA_LEVEL"			\n"   \
+		"1:	lld	%1, %2	# atomic64_" #op "_return" #suffix "\n"\
+		"2:	" #asm_op " %0, %1, %3				\n"   \
+		"	scd	%0, %2					\n"   \
+		"	beqz	%0, 1b					\n"   \
+		post_op							      \
+		extable							      \
+		"4:	" #asm_op " %0, %1, %3				\n"   \
+		"5:							\n"   \
+		"	.set	mips0					\n"   \
+		: "=&r" (result), "=&r" (temp),				      \
+		  "=" GCC_OFF_SMALL_ASM() (v->counter)			      \
+		: "Ir" (i), GCC_OFF_SMALL_ASM() (v->counter)		      \
+		: "memory");						      \
 	} else {							      \
 		unsigned long flags;					      \
 									      \
 		raw_local_irq_save(flags);				      \
-		result = v->counter;					      \
-		result c_op i;						      \
-		v->counter = result;					      \
+		__asm__ __volatile__(					      \
+		"	ld	%0, %1					\n"   \
+		"2:	" #asm_op " %0, %1, %2				\n"   \
+		"	sd	%0, %1					\n"   \
+		"3:							\n"   \
+		extable							      \
+		: "=&r" (result), "+" GCC_OFF_SMALL_ASM() (v->counter)	      \
+		: "Ir" (i));						      \
 		raw_local_irq_restore(flags);				      \
 	}								      \
 									      \
@@ -414,19 +547,27 @@ static __inline__ long atomic64_##op##_return(long i, atomic64_t * v)	      \
 	return result;							      \
 }
 
-#define ATOMIC64_OPS(op, c_op, asm_op)					      \
-	ATOMIC64_OP(op, c_op, asm_op)					      \
-	ATOMIC64_OP_RETURN(op, c_op, asm_op)
+#define ATOMIC64_OP_RETURN(op, asm_op) __ATOMIC64_OP_RETURN(op, _unchecked, asm_op##u, , )	\
+				       __ATOMIC64_OP_RETURN(op, , asm_op, __OVERFLOW_POST, __OVERFLOW_EXTABLE)
 
-ATOMIC64_OPS(add, +=, daddu)
-ATOMIC64_OPS(sub, -=, dsubu)
-ATOMIC64_OP(and, &=, and)
-ATOMIC64_OP(or, |=, or)
-ATOMIC64_OP(xor, ^=, xor)
+#define ATOMIC64_OPS(op, asm_op)						\
+	ATOMIC64_OP(op, asm_op)							\
+	ATOMIC64_OP_RETURN(op, asm_op)
+
+ATOMIC64_OPS(add, dadd)
+ATOMIC64_OPS(sub, dsub)
+
+ATOMIC64_OP(and, and)
+ATOMIC64_OP(or, or)
+ATOMIC64_OP(xor, xor)
 
 #undef ATOMIC64_OPS
 #undef ATOMIC64_OP_RETURN
+#undef __ATOMIC64_OP_RETURN
 #undef ATOMIC64_OP
+#undef __ATOMIC64_OP
+#undef __OVERFLOW_EXTABLE
+#undef __OVERFLOW_POST
 
 /*
  * atomic64_sub_if_positive - conditionally subtract integer from atomic
@@ -437,7 +578,7 @@ ATOMIC64_OP(xor, ^=, xor)
  * Atomically test @v and subtract @i if @v is greater or equal than @i.
  * The function returns the old value of @v minus @i.
  */
-static __inline__ long atomic64_sub_if_positive(long i, atomic64_t * v)
+static __inline__ long atomic64_sub_if_positive(long i, atomic64_t *v)
 {
 	long result;
 
@@ -447,7 +588,7 @@ static __inline__ long atomic64_sub_if_positive(long i, atomic64_t * v)
 		long temp;
 
 		__asm__ __volatile__(
-		"	.set	arch=r4000				\n"
+		"	.set	"MIPS_ISA_LEVEL"			\n"
 		"1:	lld	%1, %2		# atomic64_sub_if_positive\n"
 		"	dsubu	%0, %1, %3				\n"
 		"	bltz	%0, 1f					\n"
@@ -496,9 +637,26 @@ static __inline__ long atomic64_sub_if_positive(long i, atomic64_t * v)
 	return result;
 }
 
-#define atomic64_cmpxchg(v, o, n) \
-	((__typeof__((v)->counter))cmpxchg(&((v)->counter), (o), (n)))
-#define atomic64_xchg(v, new) (xchg(&((v)->counter), (new)))
+static inline long atomic64_cmpxchg(atomic64_t *v, long old, long new)
+{
+	return cmpxchg(&v->counter, old, new);
+}
+
+static inline long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *v, long old,
+					      long new)
+{
+	return cmpxchg(&(v->counter), old, new);
+}
+
+static inline long atomic64_xchg(atomic64_t *v, long new)
+{
+	return xchg(&v->counter, new);
+}
+
+static inline long atomic64_xchg_unchecked(atomic64_unchecked_t *v, long new)
+{
+	return xchg(&(v->counter), new);
+}
 
 /**
  * atomic64_add_unless - add unless the number is a given value
@@ -528,6 +686,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
 
 #define atomic64_dec_return(v) atomic64_sub_return(1, (v))
 #define atomic64_inc_return(v) atomic64_add_return(1, (v))
+#define atomic64_inc_return_unchecked(v) atomic64_add_return_unchecked(1, (v))
 
 /*
  * atomic64_sub_and_test - subtract value from variable and test result
@@ -549,6 +708,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
  * other cases.
  */
 #define atomic64_inc_and_test(v) (atomic64_inc_return(v) == 0)
+#define atomic64_inc_and_test_unchecked(v) atomic64_add_return_unchecked(1, (v)) == 0)
 
 /*
  * atomic64_dec_and_test - decrement by 1 and test
@@ -573,6 +733,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
  * Atomically increments @v by 1.
  */
 #define atomic64_inc(v) atomic64_add(1, (v))
+#define atomic64_inc_unchecked(v) atomic64_add_unchecked(1, (v))
 
 /*
  * atomic64_dec - decrement and test
@@ -581,6 +742,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
  * Atomically decrements @v by 1.
  */
 #define atomic64_dec(v) atomic64_sub(1, (v))
+#define atomic64_dec_unchecked(v) atomic64_sub_unchecked(1, (v))
 
 /*
  * atomic64_add_negative - add and test if negative
diff --git a/arch/mips/include/asm/cache.h b/arch/mips/include/asm/cache.h
index b4db69f..8f3b093 100644
--- a/arch/mips/include/asm/cache.h
+++ b/arch/mips/include/asm/cache.h
@@ -9,10 +9,11 @@
 #ifndef _ASM_CACHE_H
 #define _ASM_CACHE_H
 
+#include <linux/const.h>
 #include <kmalloc.h>
 
 #define L1_CACHE_SHIFT		CONFIG_MIPS_L1_CACHE_SHIFT
-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
+#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
 
 #define SMP_CACHE_SHIFT		L1_CACHE_SHIFT
 #define SMP_CACHE_BYTES		L1_CACHE_BYTES
diff --git a/arch/mips/include/asm/elf.h b/arch/mips/include/asm/elf.h
index e090fc3..eae24400 100644
--- a/arch/mips/include/asm/elf.h
+++ b/arch/mips/include/asm/elf.h
@@ -425,6 +425,13 @@ extern const char *__elf_platform;
 #define ELF_ET_DYN_BASE		(TASK_SIZE / 3 * 2)
 #endif
 
+#ifdef CONFIG_PAX_ASLR
+#define PAX_ELF_ET_DYN_BASE	(TASK_IS_32BIT_ADDR ? 0x00400000UL : 0x00400000UL)
+
+#define PAX_DELTA_MMAP_LEN	(TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
+#define PAX_DELTA_STACK_LEN	(TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
+#endif
+
 #define ARCH_DLINFO							\
 do {									\
 	NEW_AUX_ENT(AT_SYSINFO_EHDR,					\
diff --git a/arch/mips/include/asm/exec.h b/arch/mips/include/asm/exec.h
index c1f6afa..38cc6e9 100644
--- a/arch/mips/include/asm/exec.h
+++ b/arch/mips/include/asm/exec.h
@@ -12,6 +12,6 @@
 #ifndef _ASM_EXEC_H
 #define _ASM_EXEC_H
 
-extern unsigned long arch_align_stack(unsigned long sp);
+#define arch_align_stack(x) ((x) & ~0xfUL)
 
 #endif /* _ASM_EXEC_H */
diff --git a/arch/mips/include/asm/hw_irq.h b/arch/mips/include/asm/hw_irq.h
index 9e8ef59..1139d6b 100644
--- a/arch/mips/include/asm/hw_irq.h
+++ b/arch/mips/include/asm/hw_irq.h
@@ -10,7 +10,7 @@
 
 #include <linux/atomic.h>
 
-extern atomic_t irq_err_count;
+extern atomic_unchecked_t irq_err_count;
 
 /*
  * interrupt-retrigger: NOP for now. This may not be appropriate for all
diff --git a/arch/mips/include/asm/irq.h b/arch/mips/include/asm/irq.h
index 15e0fec..3ee3eec 100644
--- a/arch/mips/include/asm/irq.h
+++ b/arch/mips/include/asm/irq.h
@@ -11,7 +11,6 @@
 
 #include <linux/linkage.h>
 #include <linux/smp.h>
-#include <linux/irqdomain.h>
 
 #include <asm/mipsmtregs.h>
 
diff --git a/arch/mips/include/asm/local.h b/arch/mips/include/asm/local.h
index 8feaed6..1bd8a64 100644
--- a/arch/mips/include/asm/local.h
+++ b/arch/mips/include/asm/local.h
@@ -13,15 +13,25 @@ typedef struct
 	atomic_long_t a;
 } local_t;
 
+typedef struct {
+	atomic_long_unchecked_t a;
+} local_unchecked_t;
+
 #define LOCAL_INIT(i)	{ ATOMIC_LONG_INIT(i) }
 
 #define local_read(l)	atomic_long_read(&(l)->a)
+#define local_read_unchecked(l)	atomic_long_read_unchecked(&(l)->a)
 #define local_set(l, i) atomic_long_set(&(l)->a, (i))
+#define local_set_unchecked(l, i)	atomic_long_set_unchecked(&(l)->a, (i))
 
 #define local_add(i, l) atomic_long_add((i), (&(l)->a))
+#define local_add_unchecked(i, l) atomic_long_add_unchecked((i), (&(l)->a))
 #define local_sub(i, l) atomic_long_sub((i), (&(l)->a))
+#define local_sub_unchecked(i, l) atomic_long_sub_unchecked((i), (&(l)->a))
 #define local_inc(l)	atomic_long_inc(&(l)->a)
+#define local_inc_unchecked(l)	atomic_long_inc_unchecked(&(l)->a)
 #define local_dec(l)	atomic_long_dec(&(l)->a)
+#define local_dec_unchecked(l)	atomic_long_dec_unchecked(&(l)->a)
 
 /*
  * Same as above, but return the result value
@@ -71,6 +81,51 @@ static __inline__ long local_add_return(long i, local_t * l)
 	return result;
 }
 
+static __inline__ long local_add_return_unchecked(long i, local_unchecked_t * l)
+{
+	unsigned long result;
+
+	if (kernel_uses_llsc && R10000_LLSC_WAR) {
+		unsigned long temp;
+
+		__asm__ __volatile__(
+		"	.set	mips3					\n"
+		"1:"	__LL	"%1, %2		# local_add_return	\n"
+		"	addu	%0, %1, %3				\n"
+			__SC	"%0, %2					\n"
+		"	beqzl	%0, 1b					\n"
+		"	addu	%0, %1, %3				\n"
+		"	.set	mips0					\n"
+		: "=&r" (result), "=&r" (temp), "=m" (l->a.counter)
+		: "Ir" (i), "m" (l->a.counter)
+		: "memory");
+	} else if (kernel_uses_llsc) {
+		unsigned long temp;
+
+		__asm__ __volatile__(
+		"	.set	mips3					\n"
+		"1:"	__LL	"%1, %2		# local_add_return	\n"
+		"	addu	%0, %1, %3				\n"
+			__SC	"%0, %2					\n"
+		"	beqz	%0, 1b					\n"
+		"	addu	%0, %1, %3				\n"
+		"	.set	mips0					\n"
+		: "=&r" (result), "=&r" (temp), "=m" (l->a.counter)
+		: "Ir" (i), "m" (l->a.counter)
+		: "memory");
+	} else {
+		unsigned long flags;
+
+		local_irq_save(flags);
+		result = l->a.counter;
+		result += i;
+		l->a.counter = result;
+		local_irq_restore(flags);
+	}
+
+	return result;
+}
+
 static __inline__ long local_sub_return(long i, local_t * l)
 {
 	unsigned long result;
@@ -118,6 +173,8 @@ static __inline__ long local_sub_return(long i, local_t * l)
 
 #define local_cmpxchg(l, o, n) \
 	((long)cmpxchg_local(&((l)->a.counter), (o), (n)))
+#define local_cmpxchg_unchecked(l, o, n) \
+	((long)cmpxchg_local(&((l)->a.counter), (o), (n)))
 #define local_xchg(l, n) (atomic_long_xchg((&(l)->a), (n)))
 
 /**
diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h
index 21ed715..774a251 100644
--- a/arch/mips/include/asm/page.h
+++ b/arch/mips/include/asm/page.h
@@ -118,7 +118,7 @@ extern void copy_user_highpage(struct page *to, struct page *from,
   #ifdef CONFIG_CPU_MIPS32
     typedef struct { unsigned long pte_low, pte_high; } pte_t;
     #define pte_val(x)	  ((x).pte_low | ((unsigned long long)(x).pte_high << 32))
-    #define __pte(x)	  ({ pte_t __pte = {(x), ((unsigned long long)(x)) >> 32}; __pte; })
+    #define __pte(x)	  ({ pte_t __pte = {(x), (x) >> 32}; __pte; })
   #else
      typedef struct { unsigned long long pte; } pte_t;
      #define pte_val(x) ((x).pte)
diff --git a/arch/mips/include/asm/pgalloc.h b/arch/mips/include/asm/pgalloc.h
index b336037..5b874cc 100644
--- a/arch/mips/include/asm/pgalloc.h
+++ b/arch/mips/include/asm/pgalloc.h
@@ -37,6 +37,11 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
 {
 	set_pud(pud, __pud((unsigned long)pmd));
 }
+
+static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
+{
+	pud_populate(mm, pud, pmd);
+}
 #endif
 
 /*
diff --git a/arch/mips/include/asm/pgtable.h b/arch/mips/include/asm/pgtable.h
index 65bf2c0..09b7819 100644
--- a/arch/mips/include/asm/pgtable.h
+++ b/arch/mips/include/asm/pgtable.h
@@ -20,6 +20,9 @@
 #include <asm/io.h>
 #include <asm/pgtable-bits.h>
 
+#define ktla_ktva(addr)		(addr)
+#define ktva_ktla(addr)		(addr)
+
 struct mm_struct;
 struct vm_area_struct;
 
diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h
index e309d8f..20eefec 100644
--- a/arch/mips/include/asm/thread_info.h
+++ b/arch/mips/include/asm/thread_info.h
@@ -101,6 +101,9 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_NOTIFY_RESUME	5	/* callback before returning to user */
 #define TIF_UPROBE		6	/* breakpointed or singlestepping */
 #define TIF_RESTORE_SIGMASK	9	/* restore signal mask in do_signal() */
+/* li takes a 32bit immediate */
+#define TIF_GRSEC_SETXID	10	/* update credentials on syscall entry/exit */
+
 #define TIF_USEDFPU		16	/* FPU was used by this task this quantum (SMP) */
 #define TIF_MEMDIE		18	/* is terminating due to OOM killer */
 #define TIF_NOHZ		19	/* in adaptive nohz mode */
@@ -137,14 +140,16 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_USEDMSA		(1<<TIF_USEDMSA)
 #define _TIF_MSA_CTX_LIVE	(1<<TIF_MSA_CTX_LIVE)
 #define _TIF_SYSCALL_TRACEPOINT	(1<<TIF_SYSCALL_TRACEPOINT)
+#define _TIF_GRSEC_SETXID	(1<<TIF_GRSEC_SETXID)
 
 #define _TIF_WORK_SYSCALL_ENTRY	(_TIF_NOHZ | _TIF_SYSCALL_TRACE |	\
 				 _TIF_SYSCALL_AUDIT | \
-				 _TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP)
+				 _TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP | \
+				 _TIF_GRSEC_SETXID)
 
 /* work to do in syscall_trace_leave() */
 #define _TIF_WORK_SYSCALL_EXIT	(_TIF_NOHZ | _TIF_SYSCALL_TRACE |	\
-				 _TIF_SYSCALL_AUDIT | _TIF_SYSCALL_TRACEPOINT)
+				 _TIF_SYSCALL_AUDIT | _TIF_SYSCALL_TRACEPOINT | _TIF_GRSEC_SETXID)
 
 /* work to do on interrupt/exception return */
 #define _TIF_WORK_MASK		\
@@ -153,7 +158,7 @@ static inline struct thread_info *current_thread_info(void)
 /* work to do on any return to u-space */
 #define _TIF_ALLWORK_MASK	(_TIF_NOHZ | _TIF_WORK_MASK |		\
 				 _TIF_WORK_SYSCALL_EXIT |		\
-				 _TIF_SYSCALL_TRACEPOINT)
+				 _TIF_SYSCALL_TRACEPOINT | _TIF_GRSEC_SETXID)
 
 /*
  * We stash processor id into a COP0 register to retrieve it fast
diff --git a/arch/mips/include/asm/uaccess.h b/arch/mips/include/asm/uaccess.h
index 7f109d4..40b1195 100644
--- a/arch/mips/include/asm/uaccess.h
+++ b/arch/mips/include/asm/uaccess.h
@@ -146,6 +146,7 @@ static inline bool eva_kernel_access(void)
 	__ok == 0;							\
 })
 
+#define access_ok_noprefault(type, addr, size) access_ok((type), (addr), (size))
 #define access_ok(type, addr, size)					\
 	likely(__access_ok((addr), (size), __access_mask))
 
diff --git a/arch/mips/kernel/binfmt_elfn32.c b/arch/mips/kernel/binfmt_elfn32.c
index 1b992c6..4f250db 100644
--- a/arch/mips/kernel/binfmt_elfn32.c
+++ b/arch/mips/kernel/binfmt_elfn32.c
@@ -50,6 +50,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
 #undef ELF_ET_DYN_BASE
 #define ELF_ET_DYN_BASE		(TASK32_SIZE / 3 * 2)
 
+#ifdef CONFIG_PAX_ASLR
+#define PAX_ELF_ET_DYN_BASE	(TASK_IS_32BIT_ADDR ? 0x00400000UL : 0x00400000UL)
+
+#define PAX_DELTA_MMAP_LEN	(TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
+#define PAX_DELTA_STACK_LEN	(TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
+#endif
+
 #include <asm/processor.h>
 #include <linux/module.h>
 #include <linux/elfcore.h>
diff --git a/arch/mips/kernel/binfmt_elfo32.c b/arch/mips/kernel/binfmt_elfo32.c
index abd3aff..ab1b84a 100644
--- a/arch/mips/kernel/binfmt_elfo32.c
+++ b/arch/mips/kernel/binfmt_elfo32.c
@@ -70,6 +70,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
 #undef ELF_ET_DYN_BASE
 #define ELF_ET_DYN_BASE		(TASK32_SIZE / 3 * 2)
 
+#ifdef CONFIG_PAX_ASLR
+#define PAX_ELF_ET_DYN_BASE	(TASK_IS_32BIT_ADDR ? 0x00400000UL : 0x00400000UL)
+
+#define PAX_DELTA_MMAP_LEN	(TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
+#define PAX_DELTA_STACK_LEN	(TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
+#endif
+
 #include <asm/processor.h>
 
 #include <linux/module.h>
diff --git a/arch/mips/kernel/irq-gt641xx.c b/arch/mips/kernel/irq-gt641xx.c
index 44a1f79..2bd6aa3 100644
--- a/arch/mips/kernel/irq-gt641xx.c
+++ b/arch/mips/kernel/irq-gt641xx.c
@@ -110,7 +110,7 @@ void gt641xx_irq_dispatch(void)
 		}
 	}
 
-	atomic_inc(&irq_err_count);
+	atomic_inc_unchecked(&irq_err_count);
 }
 
 void __init gt641xx_irq_init(void)
diff --git a/arch/mips/kernel/irq.c b/arch/mips/kernel/irq.c
index 8eb5af8..2baf465 100644
--- a/arch/mips/kernel/irq.c
+++ b/arch/mips/kernel/irq.c
@@ -34,17 +34,17 @@ void ack_bad_irq(unsigned int irq)
 	printk("unexpected IRQ # %d\n", irq);
 }
 
-atomic_t irq_err_count;
+atomic_unchecked_t irq_err_count;
 
 int arch_show_interrupts(struct seq_file *p, int prec)
 {
-	seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count));
+	seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read_unchecked(&irq_err_count));
 	return 0;
 }
 
 asmlinkage void spurious_interrupt(void)
 {
-	atomic_inc(&irq_err_count);
+	atomic_inc_unchecked(&irq_err_count);
 }
 
 void __init init_IRQ(void)
@@ -58,6 +58,8 @@ void __init init_IRQ(void)
 }
 
 #ifdef CONFIG_DEBUG_STACKOVERFLOW
+
+extern void gr_handle_kernel_exploit(void);
 static inline void check_stack_overflow(void)
 {
 	unsigned long sp;
@@ -73,6 +75,7 @@ static inline void check_stack_overflow(void)
 		printk("do_IRQ: stack overflow: %ld\n",
 		       sp - sizeof(struct thread_info));
 		dump_stack();
+		gr_handle_kernel_exploit();
 	}
 }
 #else
diff --git a/arch/mips/kernel/pm-cps.c b/arch/mips/kernel/pm-cps.c
index fa3f9eb..98ada7a 100644
--- a/arch/mips/kernel/pm-cps.c
+++ b/arch/mips/kernel/pm-cps.c
@@ -172,7 +172,7 @@ int cps_pm_enter_state(enum cps_pm_state state)
 	nc_core_ready_count = nc_addr;
 
 	/* Ensure ready_count is zero-initialised before the assembly runs */
-	ACCESS_ONCE(*nc_core_ready_count) = 0;
+	ACCESS_ONCE_RW(*nc_core_ready_count) = 0;
 	coupled_barrier(&per_cpu(pm_barrier, core), online);
 
 	/* Run the generated entry code */
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index d83730c..ced3459 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -539,18 +539,6 @@ out:
 	return pc;
 }
 
-/*
- * Don't forget that the stack pointer must be aligned on a 8 bytes
- * boundary for 32-bits ABI and 16 bytes for 64-bits ABI.
- */
-unsigned long arch_align_stack(unsigned long sp)
-{
-	if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
-		sp -= get_random_int() & ~PAGE_MASK;
-
-	return sp & ALMASK;
-}
-
 static void arch_dump_stack(void *info)
 {
 	struct pt_regs *regs;
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index 4285d8b..febcfeb 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -881,6 +881,10 @@ long arch_ptrace(struct task_struct *child, long request,
 	return ret;
 }
 
+#ifdef CONFIG_GRKERNSEC_SETXID
+extern void gr_delayed_cred_worker(void);
+#endif
+
 /*
  * Notification of system call entry/exit
  * - triggered by current->work.syscall_trace
@@ -899,6 +903,11 @@ asmlinkage long syscall_trace_enter(struct pt_regs *regs, long syscall)
 	    tracehook_report_syscall_entry(regs))
 		ret = -1;
 
+#ifdef CONFIG_GRKERNSEC_SETXID
+	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
+		gr_delayed_cred_worker();
+#endif
+
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
 		trace_sys_enter(regs, regs->regs[2]);
 
diff --git a/arch/mips/kernel/sync-r4k.c b/arch/mips/kernel/sync-r4k.c
index 4472a7f..c5905e6 100644
--- a/arch/mips/kernel/sync-r4k.c
+++ b/arch/mips/kernel/sync-r4k.c
@@ -18,8 +18,8 @@
 #include <asm/mipsregs.h>
 
 static unsigned int initcount = 0;
-static atomic_t count_count_start = ATOMIC_INIT(0);
-static atomic_t count_count_stop = ATOMIC_INIT(0);
+static atomic_unchecked_t count_count_start = ATOMIC_INIT(0);
+static atomic_unchecked_t count_count_stop = ATOMIC_INIT(0);
 
 #define COUNTON 100
 #define NR_LOOPS 3
@@ -46,13 +46,13 @@ void synchronise_count_master(int cpu)
 
 	for (i = 0; i < NR_LOOPS; i++) {
 		/* slaves loop on '!= 2' */
-		while (atomic_read(&count_count_start) != 1)
+		while (atomic_read_unchecked(&count_count_start) != 1)
 			mb();
-		atomic_set(&count_count_stop, 0);
+		atomic_set_unchecked(&count_count_stop, 0);
 		smp_wmb();
 
 		/* Let the slave writes its count register */
-		atomic_inc(&count_count_start);
+		atomic_inc_unchecked(&count_count_start);
 
 		/* Count will be initialised to current timer */
 		if (i == 1)
@@ -67,11 +67,11 @@ void synchronise_count_master(int cpu)
 		/*
 		 * Wait for slave to leave the synchronization point:
 		 */
-		while (atomic_read(&count_count_stop) != 1)
+		while (atomic_read_unchecked(&count_count_stop) != 1)
 			mb();
-		atomic_set(&count_count_start, 0);
+		atomic_set_unchecked(&count_count_start, 0);
 		smp_wmb();
-		atomic_inc(&count_count_stop);
+		atomic_inc_unchecked(&count_count_stop);
 	}
 	/* Arrange for an interrupt in a short while */
 	write_c0_compare(read_c0_count() + COUNTON);
@@ -96,8 +96,8 @@ void synchronise_count_slave(int cpu)
 	 */
 
 	for (i = 0; i < NR_LOOPS; i++) {
-		atomic_inc(&count_count_start);
-		while (atomic_read(&count_count_start) != 2)
+		atomic_inc_unchecked(&count_count_start);
+		while (atomic_read_unchecked(&count_count_start) != 2)
 			mb();
 
 		/*
@@ -106,8 +106,8 @@ void synchronise_count_slave(int cpu)
 		if (i == NR_LOOPS-1)
 			write_c0_count(initcount);
 
-		atomic_inc(&count_count_stop);
-		while (atomic_read(&count_count_stop) != 2)
+		atomic_inc_unchecked(&count_count_stop);
+		while (atomic_read_unchecked(&count_count_stop) != 2)
 			mb();
 	}
 	/* Arrange for an interrupt in a short while */
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 5aa1d5c..491df0d 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -698,7 +698,18 @@ asmlinkage void do_ov(struct pt_regs *regs)
 	};
 
 	prev_state = exception_enter();
-	die_if_kernel("Integer overflow", regs);
+	if (unlikely(!user_mode(regs))) {
+
+#ifdef CONFIG_PAX_REFCOUNT
+		if (fixup_exception(regs)) {
+			pax_report_refcount_overflow(regs);
+			exception_exit(prev_state);
+			return;
+		}
+#endif
+
+		die("Integer overflow", regs);
+	}
 
 	force_sig_info(SIGFPE, &info, current);
 	exception_exit(prev_state);
diff --git a/arch/mips/lib/ashldi3.c b/arch/mips/lib/ashldi3.c
index 927dc94..27269ee 100644
--- a/arch/mips/lib/ashldi3.c
+++ b/arch/mips/lib/ashldi3.c
@@ -2,7 +2,11 @@
 
 #include "libgcc.h"
 
-long long notrace __ashldi3(long long u, word_type b)
+#ifdef CONFIG_64BIT
+DWtype notrace __ashlti3(DWtype u, word_type b)
+#else
+DWtype notrace __ashldi3(DWtype u, word_type b)
+#endif
 {
 	DWunion uu, w;
 	word_type bm;
@@ -11,19 +15,22 @@ long long notrace __ashldi3(long long u, word_type b)
 		return u;
 
 	uu.ll = u;
-	bm = 32 - b;
+	bm = BITS_PER_LONG - b;
 
 	if (bm <= 0) {
 		w.s.low = 0;
-		w.s.high = (unsigned int) uu.s.low << -bm;
+		w.s.high = (unsigned long) uu.s.low << -bm;
 	} else {
-		const unsigned int carries = (unsigned int) uu.s.low >> bm;
+		const unsigned long carries = (unsigned long) uu.s.low >> bm;
 
-		w.s.low = (unsigned int) uu.s.low << b;
-		w.s.high = ((unsigned int) uu.s.high << b) | carries;
+		w.s.low = (unsigned long) uu.s.low << b;
+		w.s.high = ((unsigned long) uu.s.high << b) | carries;
 	}
 
 	return w.ll;
 }
-
+#ifdef CONFIG_64BIT
+EXPORT_SYMBOL(__ashlti3);
+#else
 EXPORT_SYMBOL(__ashldi3);
+#endif
diff --git a/arch/mips/lib/ashrdi3.c b/arch/mips/lib/ashrdi3.c
index 9fdf1a5..6741f0e 100644
--- a/arch/mips/lib/ashrdi3.c
+++ b/arch/mips/lib/ashrdi3.c
@@ -2,7 +2,11 @@
 
 #include "libgcc.h"
 
-long long notrace __ashrdi3(long long u, word_type b)
+#ifdef CONFIG_64BIT
+DWtype notrace __ashrti3(DWtype u, word_type b)
+#else
+DWtype notrace __ashrdi3(DWtype u, word_type b)
+#endif
 {
 	DWunion uu, w;
 	word_type bm;
@@ -11,21 +15,24 @@ long long notrace __ashrdi3(long long u, word_type b)
 		return u;
 
 	uu.ll = u;
-	bm = 32 - b;
+	bm = BITS_PER_LONG - b;
 
 	if (bm <= 0) {
 		/* w.s.high = 1..1 or 0..0 */
 		w.s.high =
-		    uu.s.high >> 31;
+		    uu.s.high >> (BITS_PER_LONG - 1);
 		w.s.low = uu.s.high >> -bm;
 	} else {
-		const unsigned int carries = (unsigned int) uu.s.high << bm;
+		const unsigned long carries = (unsigned long) uu.s.high << bm;
 
 		w.s.high = uu.s.high >> b;
-		w.s.low = ((unsigned int) uu.s.low >> b) | carries;
+		w.s.low = ((unsigned long) uu.s.low >> b) | carries;
 	}
 
 	return w.ll;
 }
-
+#ifdef CONFIG_64BIT
+EXPORT_SYMBOL(__ashrti3);
+#else
 EXPORT_SYMBOL(__ashrdi3);
+#endif
diff --git a/arch/mips/lib/libgcc.h b/arch/mips/lib/libgcc.h
index 05909d58..b03284b 100644
--- a/arch/mips/lib/libgcc.h
+++ b/arch/mips/lib/libgcc.h
@@ -5,13 +5,19 @@
 
 typedef int word_type __attribute__ ((mode (__word__)));
 
+#ifdef CONFIG_64BIT
+typedef int DWtype __attribute__((mode(TI)));
+#else
+typedef long long DWtype;
+#endif
+
 #ifdef __BIG_ENDIAN
 struct DWstruct {
-	int high, low;
+	long high, low;
 };
 #elif defined(__LITTLE_ENDIAN)
 struct DWstruct {
-	int low, high;
+	long low, high;
 };
 #else
 #error I feel sick.
@@ -19,7 +25,7 @@ struct DWstruct {
 
 typedef union {
 	struct DWstruct s;
-	long long ll;
+	DWtype ll;
 } DWunion;
 
 #endif /* __ASM_LIBGCC_H */
diff --git a/arch/mips/mm/fault.c b/arch/mips/mm/fault.c
index 4b88fa0..b16bc17 100644
--- a/arch/mips/mm/fault.c
+++ b/arch/mips/mm/fault.c
@@ -31,6 +31,23 @@
 
 int show_unhandled_signals = 1;
 
+#ifdef CONFIG_PAX_PAGEEXEC
+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
+{
+	unsigned long i;
+
+	printk(KERN_ERR "PAX: bytes at PC: ");
+	for (i = 0; i < 5; i++) {
+		unsigned int c;
+		if (get_user(c, (unsigned int *)pc+i))
+			printk(KERN_CONT "???????? ");
+		else
+			printk(KERN_CONT "%08x ", c);
+	}
+	printk("\n");
+}
+#endif
+
 /*
  * This routine handles page faults.  It determines the address,
  * and the problem, and then passes it off to one of the appropriate
@@ -205,6 +222,14 @@ bad_area:
 bad_area_nosemaphore:
 	/* User mode accesses just cause a SIGSEGV */
 	if (user_mode(regs)) {
+
+#ifdef CONFIG_PAX_PAGEEXEC
+		if (cpu_has_rixi && (mm->pax_flags & MF_PAX_PAGEEXEC) && !write && address == instruction_pointer(regs)) {
+			pax_report_fault(regs, (void *)address, (void *)user_stack_pointer(regs));
+			do_group_exit(SIGKILL);
+		}
+#endif
+
 		tsk->thread.cp0_badvaddr = address;
 		tsk->thread.error_code = write;
 		if (show_unhandled_signals &&
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index 7e5fa09..65c1072 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -468,10 +468,10 @@ void __init mem_init(void)
 
 #ifdef CONFIG_64BIT
 	if ((unsigned long) &_text > (unsigned long) CKSEG0)
-		/* The -4 is a hack so that user tools don't have to handle
+		/* The -0x2000-4 is a hack so that user tools don't have to handle
 		   the overflow.  */
 		kclist_add(&kcore_kseg0, (void *) CKSEG0,
-				0x80000000 - 4, KCORE_TEXT);
+				0x80000000 - 0x2000 - 4, KCORE_TEXT);
 #endif
 }
 #endif /* !CONFIG_NEED_MULTIPLE_NODES */
diff --git a/arch/mips/mm/mmap.c b/arch/mips/mm/mmap.c
index 3530376..754dde3 100644
--- a/arch/mips/mm/mmap.c
+++ b/arch/mips/mm/mmap.c
@@ -59,6 +59,7 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
 	struct vm_area_struct *vma;
 	unsigned long addr = addr0;
 	int do_color_align;
+	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
 	struct vm_unmapped_area_info info;
 
 	if (unlikely(len > TASK_SIZE))
@@ -84,6 +85,11 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
 		do_color_align = 1;
 
 	/* requesting a specific address */
+
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(current->mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (addr) {
 		if (do_color_align)
 			addr = COLOUR_ALIGN(addr, pgoff);
@@ -91,14 +97,14 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
 			addr = PAGE_ALIGN(addr);
 
 		vma = find_vma(mm, addr);
-		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
 			return addr;
 	}
 
 	info.length = len;
 	info.align_mask = do_color_align ? (PAGE_MASK & shm_align_mask) : 0;
 	info.align_offset = pgoff << PAGE_SHIFT;
+	info.threadstack_offset = offset;
 
 	if (dir == DOWN) {
 		info.flags = VM_UNMAPPED_AREA_TOPDOWN;
@@ -160,14 +166,30 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 {
 	unsigned long random_factor = 0UL;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (current->flags & PF_RANDOMIZE)
 		random_factor = arch_mmap_rnd();
 
 	if (mmap_is_legacy()) {
 		mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			mm->mmap_base += mm->delta_mmap;
+#endif
+
 		mm->get_unmapped_area = arch_get_unmapped_area;
 	} else {
 		mm->mmap_base = mmap_base(random_factor);
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
+#endif
+
 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
 	}
 }
diff --git a/arch/mips/sgi-ip27/ip27-nmi.c b/arch/mips/sgi-ip27/ip27-nmi.c
index a2358b4..7cead4f 100644
--- a/arch/mips/sgi-ip27/ip27-nmi.c
+++ b/arch/mips/sgi-ip27/ip27-nmi.c
@@ -187,9 +187,9 @@ void
 cont_nmi_dump(void)
 {
 #ifndef REAL_NMI_SIGNAL
-	static atomic_t nmied_cpus = ATOMIC_INIT(0);
+	static atomic_unchecked_t nmied_cpus = ATOMIC_INIT(0);
 
-	atomic_inc(&nmied_cpus);
+	atomic_inc_unchecked(&nmied_cpus);
 #endif
 	/*
 	 * Only allow 1 cpu to proceed
@@ -233,7 +233,7 @@ cont_nmi_dump(void)
 		udelay(10000);
 	}
 #else
-	while (atomic_read(&nmied_cpus) != num_online_cpus());
+	while (atomic_read_unchecked(&nmied_cpus) != num_online_cpus());
 #endif
 
 	/*
diff --git a/arch/mips/sni/rm200.c b/arch/mips/sni/rm200.c
index a046b30..6799527 100644
--- a/arch/mips/sni/rm200.c
+++ b/arch/mips/sni/rm200.c
@@ -270,7 +270,7 @@ spurious_8259A_irq:
 			       "spurious RM200 8259A interrupt: IRQ%d.\n", irq);
 			spurious_irq_mask |= irqmask;
 		}
-		atomic_inc(&irq_err_count);
+		atomic_inc_unchecked(&irq_err_count);
 		/*
 		 * Theoretically we do not have to handle this IRQ,
 		 * but in Linux this does not cause problems and is
diff --git a/arch/mips/vr41xx/common/icu.c b/arch/mips/vr41xx/common/icu.c
index 41e873b..34d33a7 100644
--- a/arch/mips/vr41xx/common/icu.c
+++ b/arch/mips/vr41xx/common/icu.c
@@ -653,7 +653,7 @@ static int icu_get_irq(unsigned int irq)
 
 	printk(KERN_ERR "spurious ICU interrupt: %04x,%04x\n", pend1, pend2);
 
-	atomic_inc(&irq_err_count);
+	atomic_inc_unchecked(&irq_err_count);
 
 	return -1;
 }
diff --git a/arch/mips/vr41xx/common/irq.c b/arch/mips/vr41xx/common/irq.c
index ae0e4ee..e8f0692 100644
--- a/arch/mips/vr41xx/common/irq.c
+++ b/arch/mips/vr41xx/common/irq.c
@@ -64,7 +64,7 @@ static void irq_dispatch(unsigned int irq)
 	irq_cascade_t *cascade;
 
 	if (irq >= NR_IRQS) {
-		atomic_inc(&irq_err_count);
+		atomic_inc_unchecked(&irq_err_count);
 		return;
 	}
 
@@ -84,7 +84,7 @@ static void irq_dispatch(unsigned int irq)
 		ret = cascade->get_irq(irq);
 		irq = ret;
 		if (ret < 0)
-			atomic_inc(&irq_err_count);
+			atomic_inc_unchecked(&irq_err_count);
 		else
 			irq_dispatch(irq);
 		if (!irqd_irq_disabled(idata) && chip->irq_unmask)
diff --git a/arch/mn10300/proc-mn103e010/include/proc/cache.h b/arch/mn10300/proc-mn103e010/include/proc/cache.h
index 967d144..db12197 100644
--- a/arch/mn10300/proc-mn103e010/include/proc/cache.h
+++ b/arch/mn10300/proc-mn103e010/include/proc/cache.h
@@ -11,12 +11,14 @@
 #ifndef _ASM_PROC_CACHE_H
 #define _ASM_PROC_CACHE_H
 
+#include <linux/const.h>
+
 /* L1 cache */
 
 #define L1_CACHE_NWAYS		4	/* number of ways in caches */
 #define L1_CACHE_NENTRIES	256	/* number of entries in each way */
-#define L1_CACHE_BYTES		16	/* bytes per entry */
 #define L1_CACHE_SHIFT		4	/* shift for bytes per entry */
+#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)	/* bytes per entry */
 #define L1_CACHE_WAYDISP	0x1000	/* displacement of one way from the next */
 
 #define L1_CACHE_TAG_VALID	0x00000001	/* cache tag valid bit */
diff --git a/arch/mn10300/proc-mn2ws0050/include/proc/cache.h b/arch/mn10300/proc-mn2ws0050/include/proc/cache.h
index bcb5df2..84fabd2 100644
--- a/arch/mn10300/proc-mn2ws0050/include/proc/cache.h
+++ b/arch/mn10300/proc-mn2ws0050/include/proc/cache.h
@@ -16,13 +16,15 @@
 #ifndef _ASM_PROC_CACHE_H
 #define _ASM_PROC_CACHE_H
 
+#include <linux/const.h>
+
 /*
  * L1 cache
  */
 #define L1_CACHE_NWAYS		4		/* number of ways in caches */
 #define L1_CACHE_NENTRIES	128		/* number of entries in each way */
-#define L1_CACHE_BYTES		32		/* bytes per entry */
 #define L1_CACHE_SHIFT		5		/* shift for bytes per entry */
+#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)	/* bytes per entry */
 #define L1_CACHE_WAYDISP	0x1000		/* distance from one way to the next */
 
 #define L1_CACHE_TAG_VALID	0x00000001	/* cache tag valid bit */
diff --git a/arch/openrisc/include/asm/cache.h b/arch/openrisc/include/asm/cache.h
index 4ce7a01..449202a 100644
--- a/arch/openrisc/include/asm/cache.h
+++ b/arch/openrisc/include/asm/cache.h
@@ -19,11 +19,13 @@
 #ifndef __ASM_OPENRISC_CACHE_H
 #define __ASM_OPENRISC_CACHE_H
 
+#include <linux/const.h>
+
 /* FIXME: How can we replace these with values from the CPU...
  * they shouldn't be hard-coded!
  */
 
-#define L1_CACHE_BYTES 16
 #define L1_CACHE_SHIFT 4
+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
 
 #endif /* __ASM_OPENRISC_CACHE_H */
diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index 1d10999..5907031 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -280,6 +280,16 @@ static inline long atomic64_dec_if_positive(atomic64_t *v)
 	return dec;
 }
 
+#define atomic64_read_unchecked(v)		atomic64_read(v)
+#define atomic64_set_unchecked(v, i)		atomic64_set((v), (i))
+#define atomic64_add_unchecked(a, v)		atomic64_add((a), (v))
+#define atomic64_add_return_unchecked(a, v)	atomic64_add_return((a), (v))
+#define atomic64_sub_unchecked(a, v)		atomic64_sub((a), (v))
+#define atomic64_inc_unchecked(v)		atomic64_inc(v)
+#define atomic64_inc_return_unchecked(v)	atomic64_inc_return(v)
+#define atomic64_dec_unchecked(v)		atomic64_dec(v)
+#define atomic64_cmpxchg_unchecked(v, o, n)	atomic64_cmpxchg((v), (o), (n))
+
 #endif /* !CONFIG_64BIT */
 
 
diff --git a/arch/parisc/include/asm/cache.h b/arch/parisc/include/asm/cache.h
index df0f52b..810699b 100644
--- a/arch/parisc/include/asm/cache.h
+++ b/arch/parisc/include/asm/cache.h
@@ -5,6 +5,7 @@
 #ifndef __ARCH_PARISC_CACHE_H
 #define __ARCH_PARISC_CACHE_H
 
+#include <linux/const.h>
 
 /*
  * PA 2.0 processors have 64 and 128-byte L2 cachelines; PA 1.1 processors
@@ -14,6 +15,8 @@
 #define L1_CACHE_BYTES 16
 #define L1_CACHE_SHIFT 4
 
+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
+
 #ifndef __ASSEMBLY__
 
 #define SMP_CACHE_BYTES L1_CACHE_BYTES
diff --git a/arch/parisc/include/asm/elf.h b/arch/parisc/include/asm/elf.h
index 78c9fd3..42fa66a 100644
--- a/arch/parisc/include/asm/elf.h
+++ b/arch/parisc/include/asm/elf.h
@@ -342,6 +342,13 @@ struct pt_regs;	/* forward declaration... */
 
 #define ELF_ET_DYN_BASE         (TASK_UNMAPPED_BASE + 0x01000000)
 
+#ifdef CONFIG_PAX_ASLR
+#define PAX_ELF_ET_DYN_BASE	0x10000UL
+
+#define PAX_DELTA_MMAP_LEN	16
+#define PAX_DELTA_STACK_LEN	16
+#endif
+
 /* This yields a mask that user programs can use to figure out what
    instruction set this CPU supports.  This could be done in user space,
    but it's not easy, and we've already done it here.  */
diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
index f2fd327..2bb2a26 100644
--- a/arch/parisc/include/asm/pgalloc.h
+++ b/arch/parisc/include/asm/pgalloc.h
@@ -61,6 +61,11 @@ static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
 		        (__u32)(__pa((unsigned long)pmd) >> PxD_VALUE_SHIFT));
 }
 
+static inline void pgd_populate_kernel(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
+{
+	pgd_populate(mm, pgd, pmd);
+}
+
 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
 {
 	pmd_t *pmd = (pmd_t *)__get_free_pages(GFP_KERNEL|__GFP_REPEAT,
@@ -97,6 +102,7 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
 #define pmd_alloc_one(mm, addr)		({ BUG(); ((pmd_t *)2); })
 #define pmd_free(mm, x)			do { } while (0)
 #define pgd_populate(mm, pmd, pte)	BUG()
+#define pgd_populate_kernel(mm, pmd, pte)	BUG()
 
 #endif
 
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 291cee2..2ac33db 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -236,6 +236,17 @@ static inline void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
 #define PAGE_EXECREAD   __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_EXEC |_PAGE_ACCESSED)
 #define PAGE_COPY       PAGE_EXECREAD
 #define PAGE_RWX        __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_EXEC |_PAGE_ACCESSED)
+
+#ifdef CONFIG_PAX_PAGEEXEC
+# define PAGE_SHARED_NOEXEC	__pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_ACCESSED)
+# define PAGE_COPY_NOEXEC	__pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED)
+# define PAGE_READONLY_NOEXEC	__pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED)
+#else
+# define PAGE_SHARED_NOEXEC	PAGE_SHARED
+# define PAGE_COPY_NOEXEC	PAGE_COPY
+# define PAGE_READONLY_NOEXEC	PAGE_READONLY
+#endif
+
 #define PAGE_KERNEL	__pgprot(_PAGE_KERNEL)
 #define PAGE_KERNEL_EXEC	__pgprot(_PAGE_KERNEL_EXEC)
 #define PAGE_KERNEL_RWX	__pgprot(_PAGE_KERNEL_RWX)
diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index 7955e43..7f3661d 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -243,10 +243,10 @@ static inline unsigned long __must_check copy_from_user(void *to,
                                           const void __user *from,
                                           unsigned long n)
 {
-        int sz = __compiletime_object_size(to);
+        size_t sz = __compiletime_object_size(to);
         int ret = -EFAULT;
 
-        if (likely(sz == -1 || !__builtin_constant_p(n) || sz >= n))
+        if (likely(sz == (size_t)-1 || !__builtin_constant_p(n) || sz >= n))
                 ret = __copy_from_user(to, from, n);
         else
                 copy_from_user_overflow();
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index a0ecdb4a..71d2069 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -100,14 +100,12 @@
  * or init pieces the location is */
 static inline int in_init(struct module *me, void *loc)
 {
-	return (loc >= me->init_layout.base &&
-		loc <= (me->init_layout.base + me->init_layout.size));
+	within_module_init((unsigned long)loc, me);
 }
 
 static inline int in_core(struct module *me, void *loc)
 {
-	return (loc >= me->core_layout.base &&
-		loc <= (me->core_layout.base + me->core_layout.size));
+	within_module_core((unsigned long)loc, me);
 }
 
 static inline int in_local(struct module *me, void *loc)
@@ -367,13 +365,13 @@ int module_frob_arch_sections(CONST Elf_Ehdr *hdr,
 	}
 
 	/* align things a bit */
-	me->core_layout.size = ALIGN(me->core_layout.size, 16);
-	me->arch.got_offset = me->core_layout.size;
-	me->core_layout.size += gots * sizeof(struct got_entry);
+	me->core_layout.size_rw = ALIGN(me->core_layout.size_rw, 16);
+	me->arch.got_offset = me->core_layout.size_rw;
+	me->core_layout.size_rw += gots * sizeof(struct got_entry);
 
-	me->core_layout.size = ALIGN(me->core_layout.size, 16);
-	me->arch.fdesc_offset = me->core_layout.size;
-	me->core_layout.size += fdescs * sizeof(Elf_Fdesc);
+	me->core_layout.size_rw = ALIGN(me->core_layout.size_rw, 16);
+	me->arch.fdesc_offset = me->core_layout.size_rw;
+	me->core_layout.size_rw += fdescs * sizeof(Elf_Fdesc);
 
 	me->arch.got_max = gots;
 	me->arch.fdesc_max = fdescs;
@@ -391,7 +389,7 @@ static Elf64_Word get_got(struct module *me, unsigned long value, long addend)
 
 	BUG_ON(value == 0);
 
-	got = me->core_layout.base + me->arch.got_offset;
+	got = me->core_layout.base_rw + me->arch.got_offset;
 	for (i = 0; got[i].addr; i++)
 		if (got[i].addr == value)
 			goto out;
@@ -409,7 +407,7 @@ static Elf64_Word get_got(struct module *me, unsigned long value, long addend)
 #ifdef CONFIG_64BIT
 static Elf_Addr get_fdesc(struct module *me, unsigned long value)
 {
-	Elf_Fdesc *fdesc = me->core_layout.base + me->arch.fdesc_offset;
+	Elf_Fdesc *fdesc = me->core_layout.base_rw + me->arch.fdesc_offset;
 
 	if (!value) {
 		printk(KERN_ERR "%s: zero OPD requested!\n", me->name);
@@ -427,7 +425,7 @@ static Elf_Addr get_fdesc(struct module *me, unsigned long value)
 
 	/* Create new one */
 	fdesc->addr = value;
-	fdesc->gp = (Elf_Addr)me->core_layout.base + me->arch.got_offset;
+	fdesc->gp = (Elf_Addr)me->core_layout.base_rw + me->arch.got_offset;
 	return (Elf_Addr)fdesc;
 }
 #endif /* CONFIG_64BIT */
@@ -847,7 +845,7 @@ register_unwind_table(struct module *me,
 
 	table = (unsigned char *)sechdrs[me->arch.unwind_section].sh_addr;
 	end = table + sechdrs[me->arch.unwind_section].sh_size;
-	gp = (Elf_Addr)me->core_layout.base + me->arch.got_offset;
+	gp = (Elf_Addr)me->core_layout.base_rw + me->arch.got_offset;
 
 	DEBUGP("register_unwind_table(), sect = %d at 0x%p - 0x%p (gp=0x%lx)\n",
 	       me->arch.unwind_section, table, end, gp);
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index 0a393a0..5b3199e0 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -92,6 +92,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	unsigned long task_size = TASK_SIZE;
 	int do_color_align, last_mmap;
 	struct vm_unmapped_area_info info;
+	unsigned long offset = gr_rand_threadstack_offset(current->mm, filp, flags);
 
 	if (len > task_size)
 		return -ENOMEM;
@@ -109,6 +110,10 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 		goto found_addr;
 	}
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (addr) {
 		if (do_color_align && last_mmap)
 			addr = COLOR_ALIGN(addr, last_mmap, pgoff);
@@ -127,6 +132,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	info.high_limit = mmap_upper_limit();
 	info.align_mask = last_mmap ? (PAGE_MASK & (SHM_COLOUR - 1)) : 0;
 	info.align_offset = shared_align_offset(last_mmap, pgoff);
+	info.threadstack_offset = offset;
 	addr = vm_unmapped_area(&info);
 
 found_addr:
@@ -146,6 +152,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	unsigned long addr = addr0;
 	int do_color_align, last_mmap;
 	struct vm_unmapped_area_info info;
+	unsigned long offset = gr_rand_threadstack_offset(current->mm, filp, flags);
 
 #ifdef CONFIG_64BIT
 	/* This should only ever run for 32-bit processes.  */
@@ -170,6 +177,10 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	}
 
 	/* requesting a specific address */
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (addr) {
 		if (do_color_align && last_mmap)
 			addr = COLOR_ALIGN(addr, last_mmap, pgoff);
@@ -187,6 +198,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	info.high_limit = mm->mmap_base;
 	info.align_mask = last_mmap ? (PAGE_MASK & (SHM_COLOUR - 1)) : 0;
 	info.align_offset = shared_align_offset(last_mmap, pgoff);
+	info.threadstack_offset = offset;
 	addr = vm_unmapped_area(&info);
 	if (!(addr & ~PAGE_MASK))
 		goto found_addr;
@@ -252,6 +264,13 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	mm->mmap_legacy_base = mmap_legacy_base();
 	mm->mmap_base = mmap_upper_limit();
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (mm->pax_flags & MF_PAX_RANDMMAP) {
+		mm->mmap_legacy_base += mm->delta_mmap;
+		mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
+	}
+#endif
+
 	if (mmap_is_legacy()) {
 		mm->mmap_base = mm->mmap_legacy_base;
 		mm->get_unmapped_area = arch_get_unmapped_area;
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 97d6b20..2ab0232 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -719,9 +719,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 
 			down_read(&current->mm->mmap_sem);
 			vma = find_vma(current->mm,regs->iaoq[0]);
-			if (vma && (regs->iaoq[0] >= vma->vm_start)
-				&& (vma->vm_flags & VM_EXEC)) {
-
+			if (vma && (regs->iaoq[0] >= vma->vm_start)) {
 				fault_address = regs->iaoq[0];
 				fault_space = regs->iasq[0];
 
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 16dbe81..db2ed24 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -16,6 +16,7 @@
 #include <linux/interrupt.h>
 #include <linux/module.h>
 #include <linux/uaccess.h>
+#include <linux/unistd.h>
 
 #include <asm/traps.h>
 
@@ -50,7 +51,7 @@ int show_unhandled_signals = 1;
 static unsigned long
 parisc_acctyp(unsigned long code, unsigned int inst)
 {
-	if (code == 6 || code == 16)
+	if (code == 6 || code == 7 || code == 16)
 	    return VM_EXEC;
 
 	switch (inst & 0xf0000000) {
@@ -136,6 +137,116 @@ parisc_acctyp(unsigned long code, unsigned int inst)
 			}
 #endif
 
+#ifdef CONFIG_PAX_PAGEEXEC
+/*
+ * PaX: decide what to do with offenders (instruction_pointer(regs) = fault address)
+ *
+ * returns 1 when task should be killed
+ *         2 when rt_sigreturn trampoline was detected
+ *         3 when unpatched PLT trampoline was detected
+ */
+static int pax_handle_fetch_fault(struct pt_regs *regs)
+{
+
+#ifdef CONFIG_PAX_EMUPLT
+	int err;
+
+	do { /* PaX: unpatched PLT emulation */
+		unsigned int bl, depwi;
+
+		err = get_user(bl, (unsigned int *)instruction_pointer(regs));
+		err |= get_user(depwi, (unsigned int *)(instruction_pointer(regs)+4));
+
+		if (err)
+			break;
+
+		if (bl == 0xEA9F1FDDU && depwi == 0xD6801C1EU) {
+			unsigned int ldw, bv, ldw2, addr = instruction_pointer(regs)-12;
+
+			err = get_user(ldw, (unsigned int *)addr);
+			err |= get_user(bv, (unsigned int *)(addr+4));
+			err |= get_user(ldw2, (unsigned int *)(addr+8));
+
+			if (err)
+				break;
+
+			if (ldw == 0x0E801096U &&
+			    bv == 0xEAC0C000U &&
+			    ldw2 == 0x0E881095U)
+			{
+				unsigned int resolver, map;
+
+				err = get_user(resolver, (unsigned int *)(instruction_pointer(regs)+8));
+				err |= get_user(map, (unsigned int *)(instruction_pointer(regs)+12));
+				if (err)
+					break;
+
+				regs->gr[20] = instruction_pointer(regs)+8;
+				regs->gr[21] = map;
+				regs->gr[22] = resolver;
+				regs->iaoq[0] = resolver | 3UL;
+				regs->iaoq[1] = regs->iaoq[0] + 4;
+				return 3;
+			}
+		}
+	} while (0);
+#endif
+
+#ifdef CONFIG_PAX_EMUTRAMP
+
+#ifndef CONFIG_PAX_EMUSIGRT
+	if (!(current->mm->pax_flags & MF_PAX_EMUTRAMP))
+		return 1;
+#endif
+
+	do { /* PaX: rt_sigreturn emulation */
+		unsigned int ldi1, ldi2, bel, nop;
+
+		err = get_user(ldi1, (unsigned int *)instruction_pointer(regs));
+		err |= get_user(ldi2, (unsigned int *)(instruction_pointer(regs)+4));
+		err |= get_user(bel, (unsigned int *)(instruction_pointer(regs)+8));
+		err |= get_user(nop, (unsigned int *)(instruction_pointer(regs)+12));
+
+		if (err)
+			break;
+
+		if ((ldi1 == 0x34190000U || ldi1 == 0x34190002U) &&
+		    ldi2 == 0x3414015AU &&
+		    bel == 0xE4008200U &&
+		    nop == 0x08000240U)
+		{
+			regs->gr[25] = (ldi1 & 2) >> 1;
+			regs->gr[20] = __NR_rt_sigreturn;
+			regs->gr[31] = regs->iaoq[1] + 16;
+			regs->sr[0] = regs->iasq[1];
+			regs->iaoq[0] = 0x100UL;
+			regs->iaoq[1] = regs->iaoq[0] + 4;
+			regs->iasq[0] = regs->sr[2];
+			regs->iasq[1] = regs->sr[2];
+			return 2;
+		}
+	} while (0);
+#endif
+
+	return 1;
+}
+
+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
+{
+	unsigned long i;
+
+	printk(KERN_ERR "PAX: bytes at PC: ");
+	for (i = 0; i < 5; i++) {
+		unsigned int c;
+		if (get_user(c, (unsigned int *)pc+i))
+			printk(KERN_CONT "???????? ");
+		else
+			printk(KERN_CONT "%08x ", c);
+	}
+	printk("\n");
+}
+#endif
+
 int fixup_exception(struct pt_regs *regs)
 {
 	const struct exception_table_entry *fix;
@@ -230,8 +341,33 @@ retry:
 
 good_area:
 
-	if ((vma->vm_flags & acc_type) != acc_type)
+	if ((vma->vm_flags & acc_type) != acc_type) {
+
+#ifdef CONFIG_PAX_PAGEEXEC
+		if ((mm->pax_flags & MF_PAX_PAGEEXEC) && (acc_type & VM_EXEC) &&
+		    (address & ~3UL) == instruction_pointer(regs))
+		{
+			up_read(&mm->mmap_sem);
+			switch (pax_handle_fetch_fault(regs)) {
+
+#ifdef CONFIG_PAX_EMUPLT
+			case 3:
+				return;
+#endif
+
+#ifdef CONFIG_PAX_EMUTRAMP
+			case 2:
+				return;
+#endif
+
+			}
+			pax_report_fault(regs, (void *)instruction_pointer(regs), (void *)regs->gr[30]);
+			do_group_exit(SIGKILL);
+		}
+#endif
+
 		goto bad_area;
+	}
 
 	/*
 	 * If for any reason at all we couldn't handle the fault, make
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 7cd32c0..30c918b 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -144,6 +144,7 @@ config PPC
 	select ARCH_USE_BUILTIN_BSWAP
 	select OLD_SIGSUSPEND
 	select OLD_SIGACTION if PPC32
+	select HAVE_GCC_PLUGINS
 	select HAVE_DEBUG_STACKOVERFLOW
 	select HAVE_IRQ_EXIT_ON_IRQ_STACK
 	select ARCH_USE_CMPXCHG_LOCKREF if PPC64
@@ -439,6 +440,7 @@ config KEXEC
 	bool "kexec system call"
 	depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP)) || PPC_BOOK3E
 	select KEXEC_CORE
+	depends on !GRKERNSEC_KMEM
 	help
 	  kexec is a system call that implements the ability to shutdown your
 	  current kernel, and to start another kernel.  It is like a reboot
diff --git a/arch/powerpc/include/asm/atomic.h b/arch/powerpc/include/asm/atomic.h
index ae0751e..c7fad52 100644
--- a/arch/powerpc/include/asm/atomic.h
+++ b/arch/powerpc/include/asm/atomic.h
@@ -12,6 +12,11 @@
 
 #define ATOMIC_INIT(i)		{ (i) }
 
+#define _ASM_EXTABLE(from, to)			\
+"	.section	__ex_table,\"a\"\n"	\
+	PPC_LONG"	" #from ", " #to"\n"	\
+"	.previous\n"
+
 /*
  * Since *_return_relaxed and {cmp}xchg_relaxed are implemented with
  * a "bne-" instruction at the end, so an isync is enough as a acquire barrier
@@ -39,38 +44,79 @@ static __inline__ int atomic_read(const atomic_t *v)
 	return t;
 }
 
+static __inline__ int atomic_read_unchecked(const atomic_unchecked_t *v)
+{
+	int t;
+
+	__asm__ __volatile__("lwz%U1%X1 %0,%1" : "=r"(t) : "m"(v->counter));
+
+	return t;
+}
+
 static __inline__ void atomic_set(atomic_t *v, int i)
 {
 	__asm__ __volatile__("stw%U0%X0 %1,%0" : "=m"(v->counter) : "r"(i));
 }
 
-#define ATOMIC_OP(op, asm_op)						\
-static __inline__ void atomic_##op(int a, atomic_t *v)			\
+static __inline__ void atomic_set_unchecked(atomic_unchecked_t *v, int i)
+{
+	__asm__ __volatile__("stw%U0%X0 %1,%0" : "=m"(v->counter) : "r"(i));
+}
+
+#ifdef CONFIG_PAX_REFCOUNT
+#define __REFCOUNT_OP(op) op##o.
+#define __OVERFLOW_PRE			\
+	"	mcrxr	cr0\n"
+#define __OVERFLOW_POST			\
+	"	bf 4*cr0+so, 3f\n"	\
+	"2:	.long 0x00c00b00\n"	\
+	"3:\n"
+#define __OVERFLOW_EXTABLE \
+	"\n4:\n"
+	_ASM_EXTABLE(2b, 4b)
+#else
+#define __REFCOUNT_OP(op) op
+#define __OVERFLOW_PRE
+#define __OVERFLOW_POST
+#define __OVERFLOW_EXTABLE
+#endif
+
+#define __ATOMIC_OP(op, suffix, pre_op, asm_op, post_op, extable)	\
+static inline void atomic_##op##suffix(int a, atomic##suffix##_t *v)	\
 {									\
 	int t;								\
 									\
 	__asm__ __volatile__(						\
-"1:	lwarx	%0,0,%3		# atomic_" #op "\n"			\
+"1:	lwarx	%0,0,%3		# atomic_" #op #suffix "\n"		\
+	pre_op								\
 	#asm_op " %0,%2,%0\n"						\
+	post_op								\
 	PPC405_ERR77(0,%3)						\
 "	stwcx.	%0,0,%3 \n"						\
 "	bne-	1b\n"							\
+	extable								\
 	: "=&r" (t), "+m" (v->counter)					\
 	: "r" (a), "r" (&v->counter)					\
 	: "cc");							\
 }									\
 
-#define ATOMIC_OP_RETURN_RELAXED(op, asm_op)				\
-static inline int atomic_##op##_return_relaxed(int a, atomic_t *v)	\
+#define ATOMIC_OP(op, asm_op) __ATOMIC_OP(op, , , asm_op, , )		\
+			      __ATOMIC_OP(op, _unchecked, __OVERFLOW_PRE, __REFCOUNT_OP(asm_op), __OVERFLOW_POST, __OVERFLOW_EXTABLE)
+
+#define __ATOMIC_OP_RETURN(op, suffix, pre_op, asm_op, post_op, extable)\
+static inline int atomic_##op##_return##suffix##_relaxed(int a, atomic##suffix##_t *v)\
 {									\
 	int t;								\
 									\
 	__asm__ __volatile__(						\
-"1:	lwarx	%0,0,%3		# atomic_" #op "_return_relaxed\n"	\
+"1:	lwarx	%0,0,%2		# atomic_" #op "_return" #suffix "_relaxed\n"\
+	pre_op								\
 	#asm_op " %0,%2,%0\n"						\
+	post_op								\
 	PPC405_ERR77(0, %3)						\
 "	stwcx.	%0,0,%3\n"						\
 "	bne-	1b\n"							\
+	extable								\
 	: "=&r" (t), "+m" (v->counter)					\
 	: "r" (a), "r" (&v->counter)					\
 	: "cc");							\
@@ -78,6 +124,9 @@ static inline int atomic_##op##_return_relaxed(int a, atomic_t *v)	\
 	return t;							\
 }
 
+#define ATOMIC_OP_RETURN_RELAXED(op, asm_op) __ATOMIC_OP_RETURN(op, , , asm_op, , )\
+				     __ATOMIC_OP_RETURN(op, _unchecked, __OVERFLOW_PRE, __REFCOUNT_OP(asm_op), __OVERFLOW_POST, __OVERFLOW_EXTABLE)
+
 #define ATOMIC_OPS(op, asm_op)						\
 	ATOMIC_OP(op, asm_op)						\
 	ATOMIC_OP_RETURN_RELAXED(op, asm_op)
@@ -94,40 +143,29 @@ ATOMIC_OP(xor, xor)
 
 #undef ATOMIC_OPS
 #undef ATOMIC_OP_RETURN_RELAXED
+#undef __ATOMIC_OP_RETURN
 #undef ATOMIC_OP
+#undef __ATOMIC_OP
 
 #define atomic_add_negative(a, v)	(atomic_add_return((a), (v)) < 0)
 
-static __inline__ void atomic_inc(atomic_t *v)
-{
-	int t;
+/*
+ * atomic_inc - increment atomic variable
+ * @v: pointer of type atomic_t
+ *
+ * Automatically increments @v by 1
+ */
+#define atomic_inc(v) atomic_add(1, (v))
+#define atomic_inc_return_relaxed(v) atomic_add_return_relaxed(1, (v))
 
-	__asm__ __volatile__(
-"1:	lwarx	%0,0,%2		# atomic_inc\n\
-	addic	%0,%0,1\n"
-	PPC405_ERR77(0,%2)
-"	stwcx.	%0,0,%2 \n\
-	bne-	1b"
-	: "=&r" (t), "+m" (v->counter)
-	: "r" (&v->counter)
-	: "cc", "xer");
+static inline void atomic_inc_unchecked(atomic_unchecked_t *v)
+{
+	atomic_add_unchecked(1, v);
 }
 
-static __inline__ int atomic_inc_return_relaxed(atomic_t *v)
+static inline int atomic_inc_return_unchecked_relaxed(atomic_unchecked_t *v)
 {
-	int t;
-
-	__asm__ __volatile__(
-"1:	lwarx	%0,0,%2		# atomic_inc_return_relaxed\n"
-"	addic	%0,%0,1\n"
-	PPC405_ERR77(0, %2)
-"	stwcx.	%0,0,%2\n"
-"	bne-	1b"
-	: "=&r" (t), "+m" (v->counter)
-	: "r" (&v->counter)
-	: "cc", "xer");
-
-	return t;
+	return atomic_add_return_unchecked_relaxed(1, v);
 }
 
 /*
@@ -140,36 +178,23 @@ static __inline__ int atomic_inc_return_relaxed(atomic_t *v)
  */
 #define atomic_inc_and_test(v) (atomic_inc_return(v) == 0)
 
-static __inline__ void atomic_dec(atomic_t *v)
+static __inline__ int atomic_inc_and_test_unchecked(atomic_unchecked_t *v)
 {
-	int t;
-
-	__asm__ __volatile__(
-"1:	lwarx	%0,0,%2		# atomic_dec\n\
-	addic	%0,%0,-1\n"
-	PPC405_ERR77(0,%2)\
-"	stwcx.	%0,0,%2\n\
-	bne-	1b"
-	: "=&r" (t), "+m" (v->counter)
-	: "r" (&v->counter)
-	: "cc", "xer");
+	return atomic_add_return_unchecked(1, v) == 0;
 }
 
-static __inline__ int atomic_dec_return_relaxed(atomic_t *v)
+/* 
+ * atomic_dec - decrement atomic variable
+ * @v: pointer of type atomic_t
+ * 
+ * Atomically decrements @v by 1
+ */
+#define atomic_dec(v) atomic_sub(1, (v))
+#define atomic_dec_return_relaxed(v) atomic_sub_return_relaxed(1, (v))
+
+static __inline__ void atomic_dec_unchecked(atomic_unchecked_t *v)
 {
-	int t;
-
-	__asm__ __volatile__(
-"1:	lwarx	%0,0,%2		# atomic_dec_return_relaxed\n"
-"	addic	%0,%0,-1\n"
-	PPC405_ERR77(0, %2)
-"	stwcx.	%0,0,%2\n"
-"	bne-	1b"
-	: "=&r" (t), "+m" (v->counter)
-	: "r" (&v->counter)
-	: "cc", "xer");
-
-	return t;
+	atomic_sub_unchecked(1, v);
 }
 
 #define atomic_inc_return_relaxed atomic_inc_return_relaxed
@@ -184,6 +209,16 @@ static __inline__ int atomic_dec_return_relaxed(atomic_t *v)
 #define atomic_xchg(v, new) (xchg(&((v)->counter), new))
 #define atomic_xchg_relaxed(v, new) xchg_relaxed(&((v)->counter), (new))
 
+static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new)
+{
+	return cmpxchg(&(v->counter), old, new);
+}
+
+static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new) 
+{
+	return xchg(&(v->counter), new);
+}
+
 /**
  * __atomic_add_unless - add unless the number is a given value
  * @v: pointer of type atomic_t
@@ -201,11 +236,27 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
 	PPC_ATOMIC_ENTRY_BARRIER
 "1:	lwarx	%0,0,%1		# __atomic_add_unless\n\
 	cmpw	0,%0,%3 \n\
-	beq-	2f \n\
-	add	%0,%2,%0 \n"
+	beq-	2f \n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"	mcrxr	cr0\n"
+"	addo.	%0,%2,%0\n"
+"	bf 4*cr0+so, 4f\n"
+"3:.long " "0x00c00b00""\n"
+"4:\n"
+#else
+	"add	%0,%2,%0 \n"
+#endif
+
 	PPC405_ERR77(0,%2)
 "	stwcx.	%0,0,%1 \n\
 	bne-	1b \n"
+"5:"
+
+#ifdef CONFIG_PAX_REFCOUNT
+	_ASM_EXTABLE(3b, 5b)
+#endif
+
 	PPC_ATOMIC_EXIT_BARRIER
 "	subf	%0,%2,%0 \n\
 2:"
@@ -291,37 +342,59 @@ static __inline__ long atomic64_read(const atomic64_t *v)
 	return t;
 }
 
+static __inline__ long atomic64_read_unchecked(const atomic64_unchecked_t *v)
+{
+	long t;
+
+	__asm__ __volatile__("ld%U1%X1 %0,%1" : "=r"(t) : "m"(v->counter));
+
+	return t;
+}
+
 static __inline__ void atomic64_set(atomic64_t *v, long i)
 {
 	__asm__ __volatile__("std%U0%X0 %1,%0" : "=m"(v->counter) : "r"(i));
 }
 
-#define ATOMIC64_OP(op, asm_op)						\
-static __inline__ void atomic64_##op(long a, atomic64_t *v)		\
+static __inline__ void atomic64_set_unchecked(atomic64_unchecked_t *v, long i)
+{
+	__asm__ __volatile__("std%U0%X0 %1,%0" : "=m"(v->counter) : "r"(i));
+}
+
+#define __ATOMIC64_OP(op, suffix, pre_op, asm_op, post_op, extable)	\
+static inline void atomic64_##op##suffix(long a, atomic64##suffix##_t *v)\
 {									\
 	long t;								\
 									\
 	__asm__ __volatile__(						\
 "1:	ldarx	%0,0,%3		# atomic64_" #op "\n"			\
+	pre_op								\
 	#asm_op " %0,%2,%0\n"						\
+	post_op								\
 "	stdcx.	%0,0,%3 \n"						\
 "	bne-	1b\n"							\
+	extable								\
 	: "=&r" (t), "+m" (v->counter)					\
 	: "r" (a), "r" (&v->counter)					\
 	: "cc");							\
 }
 
-#define ATOMIC64_OP_RETURN_RELAXED(op, asm_op)				\
-static inline long							\
-atomic64_##op##_return_relaxed(long a, atomic64_t *v)			\
+#define ATOMIC64_OP(op, asm_op) __ATOMIC64_OP(op, , , asm_op, , )		\
+				__ATOMIC64_OP(op, _unchecked, __OVERFLOW_PRE, __REFCOUNT_OP(asm_op), __OVERFLOW_POST, __OVERFLOW_EXTABLE)
+
+#define __ATOMIC64_OP_RETURN(op, suffix, pre_op, asm_op, post_op, extable)\
+static inline long atomic64_##op##_return##suffix##_relaxed(long a, atomic64##suffix##_t *v)\
 {									\
 	long t;								\
 									\
 	__asm__ __volatile__(						\
 "1:	ldarx	%0,0,%3		# atomic64_" #op "_return_relaxed\n"	\
+	pre_op								\
 	#asm_op " %0,%2,%0\n"						\
+	post_op								\
 "	stdcx.	%0,0,%3\n"						\
 "	bne-	1b\n"							\
+	extable								\
 	: "=&r" (t), "+m" (v->counter)					\
 	: "r" (a), "r" (&v->counter)					\
 	: "cc");							\
@@ -329,6 +402,9 @@ atomic64_##op##_return_relaxed(long a, atomic64_t *v)			\
 	return t;							\
 }
 
+#define ATOMIC64_OP_RETURN_RELAXED(op, asm_op) __ATOMIC64_OP_RETURN(op, , , asm_op, , )\
+				       __ATOMIC64_OP_RETURN(op, _unchecked, __OVERFLOW_PRE, __REFCOUNT_OP(asm_op), __OVERFLOW_POST, __OVERFLOW_EXTABLE)
+
 #define ATOMIC64_OPS(op, asm_op)					\
 	ATOMIC64_OP(op, asm_op)						\
 	ATOMIC64_OP_RETURN_RELAXED(op, asm_op)
@@ -344,38 +420,33 @@ ATOMIC64_OP(xor, xor)
 
 #undef ATOPIC64_OPS
 #undef ATOMIC64_OP_RETURN_RELAXED
+#undef __ATOMIC64_OP_RETURN
 #undef ATOMIC64_OP
+#undef __ATOMIC64_OP
+#undef __OVERFLOW_EXTABLE
+#undef __OVERFLOW_POST
+#undef __OVERFLOW_PRE
+#undef __REFCOUNT_OP
 
 #define atomic64_add_negative(a, v)	(atomic64_add_return((a), (v)) < 0)
 
-static __inline__ void atomic64_inc(atomic64_t *v)
-{
-	long t;
+/*
+ * atomic64_inc - increment atomic variable
+ * @v: pointer of type atomic64_t
+ *
+ * Automatically increments @v by 1
+ */
+#define atomic64_inc(v) atomic64_add(1, (v))
+#define atomic64_inc_return_relaxed(v) atomic64_add_return_relaxed(1, (v))
 
-	__asm__ __volatile__(
-"1:	ldarx	%0,0,%2		# atomic64_inc\n\
-	addic	%0,%0,1\n\
-	stdcx.	%0,0,%2 \n\
-	bne-	1b"
-	: "=&r" (t), "+m" (v->counter)
-	: "r" (&v->counter)
-	: "cc", "xer");
+static inline void atomic64_inc_unchecked(atomic64_unchecked_t *v)
+{
+	atomic64_add_unchecked(1, v);
 }
 
-static __inline__ long atomic64_inc_return_relaxed(atomic64_t *v)
+static inline long atomic64_inc_return_unchecked_relaxed(atomic64_unchecked_t *v)
 {
-	long t;
-
-	__asm__ __volatile__(
-"1:	ldarx	%0,0,%2		# atomic64_inc_return_relaxed\n"
-"	addic	%0,%0,1\n"
-"	stdcx.	%0,0,%2\n"
-"	bne-	1b"
-	: "=&r" (t), "+m" (v->counter)
-	: "r" (&v->counter)
-	: "cc", "xer");
-
-	return t;
+	return atomic64_add_return_unchecked_relaxed(1, v);
 }
 
 /*
@@ -388,34 +459,18 @@ static __inline__ long atomic64_inc_return_relaxed(atomic64_t *v)
  */
 #define atomic64_inc_and_test(v) (atomic64_inc_return(v) == 0)
 
-static __inline__ void atomic64_dec(atomic64_t *v)
+/* 
+ * atomic64_dec - decrement atomic variable
+ * @v: pointer of type atomic64_t
+ * 
+ * Atomically decrements @v by 1
+ */
+#define atomic64_dec(v) atomic64_sub(1, (v))
+#define atomic64_dec_return_relaxed(v) atomic64_sub_return_relaxed(1, (v))
+
+static __inline__ void atomic64_dec_unchecked(atomic64_unchecked_t *v)
 {
-	long t;
-
-	__asm__ __volatile__(
-"1:	ldarx	%0,0,%2		# atomic64_dec\n\
-	addic	%0,%0,-1\n\
-	stdcx.	%0,0,%2\n\
-	bne-	1b"
-	: "=&r" (t), "+m" (v->counter)
-	: "r" (&v->counter)
-	: "cc", "xer");
-}
-
-static __inline__ long atomic64_dec_return_relaxed(atomic64_t *v)
-{
-	long t;
-
-	__asm__ __volatile__(
-"1:	ldarx	%0,0,%2		# atomic64_dec_return_relaxed\n"
-"	addic	%0,%0,-1\n"
-"	stdcx.	%0,0,%2\n"
-"	bne-	1b"
-	: "=&r" (t), "+m" (v->counter)
-	: "r" (&v->counter)
-	: "cc", "xer");
-
-	return t;
+	atomic64_sub_unchecked(1, v);
 }
 
 #define atomic64_inc_return_relaxed atomic64_inc_return_relaxed
@@ -457,6 +512,16 @@ static __inline__ long atomic64_dec_if_positive(atomic64_t *v)
 #define atomic64_xchg(v, new) (xchg(&((v)->counter), new))
 #define atomic64_xchg_relaxed(v, new) xchg_relaxed(&((v)->counter), (new))
 
+static inline long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *v, long old, long new)
+{
+	return cmpxchg(&(v->counter), old, new);
+}
+
+static inline long atomic64_xchg_unchecked(atomic64_unchecked_t *v, long new)
+{
+	return xchg(&(v->counter), new);
+}
+
 /**
  * atomic64_add_unless - add unless the number is a given value
  * @v: pointer of type atomic64_t
@@ -472,13 +537,29 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
 
 	__asm__ __volatile__ (
 	PPC_ATOMIC_ENTRY_BARRIER
-"1:	ldarx	%0,0,%1		# __atomic_add_unless\n\
+"1:	ldarx	%0,0,%1		# atomic64_add_unless\n\
 	cmpd	0,%0,%3 \n\
-	beq-	2f \n\
-	add	%0,%2,%0 \n"
+	beq-	2f \n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"	mcrxr	cr0\n"
+"	addo.	%0,%2,%0\n"
+"	bf 4*cr0+so, 4f\n"
+"3:.long " "0x00c00b00""\n"
+"4:\n"
+#else
+	"add	%0,%2,%0 \n"
+#endif
+
 "	stdcx.	%0,0,%1 \n\
 	bne-	1b \n"
 	PPC_ATOMIC_EXIT_BARRIER
+"5:"
+
+#ifdef CONFIG_PAX_REFCOUNT
+	_ASM_EXTABLE(3b, 5b)
+#endif
+
 "	subf	%0,%2,%0 \n\
 2:"
 	: "=&r" (t)
diff --git a/arch/powerpc/include/asm/book3s/32/hash.h b/arch/powerpc/include/asm/book3s/32/hash.h
index 264b754..187b7f6 100644
--- a/arch/powerpc/include/asm/book3s/32/hash.h
+++ b/arch/powerpc/include/asm/book3s/32/hash.h
@@ -20,6 +20,7 @@
 #define _PAGE_HASHPTE	0x002	/* hash_page has made an HPTE for this pte */
 #define _PAGE_USER	0x004	/* usermode access allowed */
 #define _PAGE_GUARDED	0x008	/* G: prohibit speculative access */
+#define _PAGE_EXEC	_PAGE_GUARDED
 #define _PAGE_COHERENT	0x010	/* M: enforce memory coherence (SMP systems) */
 #define _PAGE_NO_CACHE	0x020	/* I: cache inhibit */
 #define _PAGE_WRITETHRU	0x040	/* W: cache write-through */
diff --git a/arch/powerpc/include/asm/cache.h b/arch/powerpc/include/asm/cache.h
index ffbafbf..71d037f 100644
--- a/arch/powerpc/include/asm/cache.h
+++ b/arch/powerpc/include/asm/cache.h
@@ -3,6 +3,8 @@
 
 #ifdef __KERNEL__
 
+#include <asm/reg.h>
+#include <linux/const.h>
 
 /* bytes per L1 cache line */
 #if defined(CONFIG_8xx) || defined(CONFIG_403GCX)
@@ -22,7 +24,7 @@
 #define L1_CACHE_SHIFT		7
 #endif
 
-#define	L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
+#define	L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
 
 #define	SMP_CACHE_BYTES		L1_CACHE_BYTES
 
diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h
index ee46ffe..b36c98c 100644
--- a/arch/powerpc/include/asm/elf.h
+++ b/arch/powerpc/include/asm/elf.h
@@ -30,6 +30,18 @@
 
 #define ELF_ET_DYN_BASE	0x20000000
 
+#ifdef CONFIG_PAX_ASLR
+#define PAX_ELF_ET_DYN_BASE	(0x10000000UL)
+
+#ifdef __powerpc64__
+#define PAX_DELTA_MMAP_LEN	(is_32bit_task() ? 16 : 28)
+#define PAX_DELTA_STACK_LEN	(is_32bit_task() ? 16 : 28)
+#else
+#define PAX_DELTA_MMAP_LEN	15
+#define PAX_DELTA_STACK_LEN	15
+#endif
+#endif
+
 #define ELF_CORE_EFLAGS (is_elf2_task() ? 2 : 0)
 
 /*
diff --git a/arch/powerpc/include/asm/exec.h b/arch/powerpc/include/asm/exec.h
index 8196e9c..d83a9f3 100644
--- a/arch/powerpc/include/asm/exec.h
+++ b/arch/powerpc/include/asm/exec.h
@@ -4,6 +4,6 @@
 #ifndef _ASM_POWERPC_EXEC_H
 #define _ASM_POWERPC_EXEC_H
 
-extern unsigned long arch_align_stack(unsigned long sp);
+#define arch_align_stack(x) ((x) & ~0xfUL)
 
 #endif /* _ASM_POWERPC_EXEC_H */
diff --git a/arch/powerpc/include/asm/kmap_types.h b/arch/powerpc/include/asm/kmap_types.h
index 5acabbd..7ea14fa 100644
--- a/arch/powerpc/include/asm/kmap_types.h
+++ b/arch/powerpc/include/asm/kmap_types.h
@@ -10,7 +10,7 @@
  * 2 of the License, or (at your option) any later version.
  */
 
-#define KM_TYPE_NR 16
+#define KM_TYPE_NR 17
 
 #endif	/* __KERNEL__ */
 #endif	/* _ASM_POWERPC_KMAP_TYPES_H */
diff --git a/arch/powerpc/include/asm/local.h b/arch/powerpc/include/asm/local.h
index b8da913..c02b593 100644
--- a/arch/powerpc/include/asm/local.h
+++ b/arch/powerpc/include/asm/local.h
@@ -9,21 +9,65 @@ typedef struct
 	atomic_long_t a;
 } local_t;
 
+typedef struct
+{
+	atomic_long_unchecked_t a;
+} local_unchecked_t;
+
 #define LOCAL_INIT(i)	{ ATOMIC_LONG_INIT(i) }
 
 #define local_read(l)	atomic_long_read(&(l)->a)
+#define local_read_unchecked(l)	atomic_long_read_unchecked(&(l)->a)
 #define local_set(l,i)	atomic_long_set(&(l)->a, (i))
+#define local_set_unchecked(l,i)	atomic_long_set_unchecked(&(l)->a, (i))
 
 #define local_add(i,l)	atomic_long_add((i),(&(l)->a))
+#define local_add_unchecked(i,l)	atomic_long_add_unchecked((i),(&(l)->a))
 #define local_sub(i,l)	atomic_long_sub((i),(&(l)->a))
+#define local_sub_unchecked(i,l)	atomic_long_sub_unchecked((i),(&(l)->a))
 #define local_inc(l)	atomic_long_inc(&(l)->a)
+#define local_inc_unchecked(l)	atomic_long_inc_unchecked(&(l)->a)
 #define local_dec(l)	atomic_long_dec(&(l)->a)
+#define local_dec_unchecked(l)	atomic_long_dec_unchecked(&(l)->a)
 
 static __inline__ long local_add_return(long a, local_t *l)
 {
 	long t;
 
 	__asm__ __volatile__(
+"1:"	PPC_LLARX(%0,0,%2,0) "			# local_add_return\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"	mcrxr   cr0\n"
+"	addo.	%0,%1,%0\n"
+"	bf 4*cr0+so, 3f\n"
+"2:.long " "0x00c00b00""\n"
+#else
+"	add	%0,%1,%0\n"
+#endif
+
+"3:\n"
+	PPC405_ERR77(0,%2)
+	PPC_STLCX	"%0,0,%2 \n\
+	bne-	1b"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"\n4:\n"
+	_ASM_EXTABLE(2b, 4b)
+#endif
+
+	: "=&r" (t)
+	: "r" (a), "r" (&(l->a.counter))
+	: "cc", "memory");
+
+	return t;
+}
+
+static __inline__ long local_add_return_unchecked(long a, local_unchecked_t *l)
+{
+	long t;
+
+	__asm__ __volatile__(
 "1:"	PPC_LLARX(%0,0,%2,0) "			# local_add_return\n\
 	add	%0,%1,%0\n"
 	PPC405_ERR77(0,%2)
@@ -101,6 +145,8 @@ static __inline__ long local_dec_return(local_t *l)
 
 #define local_cmpxchg(l, o, n) \
 	(cmpxchg_local(&((l)->a.counter), (o), (n)))
+#define local_cmpxchg_unchecked(l, o, n) \
+	(cmpxchg_local(&((l)->a.counter), (o), (n)))
 #define local_xchg(l, n) (xchg_local(&((l)->a.counter), (n)))
 
 /**
diff --git a/arch/powerpc/include/asm/mman.h b/arch/powerpc/include/asm/mman.h
index 2563c43..d6fdd62 100644
--- a/arch/powerpc/include/asm/mman.h
+++ b/arch/powerpc/include/asm/mman.h
@@ -25,7 +25,7 @@ static inline unsigned long arch_calc_vm_prot_bits(unsigned long prot,
 }
 #define arch_calc_vm_prot_bits(prot, pkey) arch_calc_vm_prot_bits(prot, pkey)
 
-static inline pgprot_t arch_vm_get_page_prot(unsigned long vm_flags)
+static inline pgprot_t arch_vm_get_page_prot(vm_flags_t vm_flags)
 {
 	return (vm_flags & VM_SAO) ? __pgprot(_PAGE_SAO) : __pgprot(0);
 }
diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h
index ab3d897..cbc0693 100644
--- a/arch/powerpc/include/asm/page.h
+++ b/arch/powerpc/include/asm/page.h
@@ -230,8 +230,9 @@ extern long long virt_phys_offset;
  * and needs to be executable.  This means the whole heap ends
  * up being executable.
  */
-#define VM_DATA_DEFAULT_FLAGS32	(VM_READ | VM_WRITE | VM_EXEC | \
-				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+#define VM_DATA_DEFAULT_FLAGS32 \
+	(((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \
+	 VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
 
 #define VM_DATA_DEFAULT_FLAGS64	(VM_READ | VM_WRITE | \
 				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
@@ -259,6 +260,9 @@ extern long long virt_phys_offset;
 #define is_kernel_addr(x)	((x) >= PAGE_OFFSET)
 #endif
 
+#define ktla_ktva(addr)		(addr)
+#define ktva_ktla(addr)		(addr)
+
 #ifndef CONFIG_PPC_BOOK3S_64
 /*
  * Use the top bit of the higher-level page table entries to indicate whether
diff --git a/arch/powerpc/include/asm/page_64.h b/arch/powerpc/include/asm/page_64.h
index d908a46..3753f71 100644
--- a/arch/powerpc/include/asm/page_64.h
+++ b/arch/powerpc/include/asm/page_64.h
@@ -172,15 +172,18 @@ do {						\
  * stack by default, so in the absence of a PT_GNU_STACK program header
  * we turn execute permission off.
  */
-#define VM_STACK_DEFAULT_FLAGS32	(VM_READ | VM_WRITE | VM_EXEC | \
-					 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+#define VM_STACK_DEFAULT_FLAGS32 \
+	(((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \
+	 VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
 
 #define VM_STACK_DEFAULT_FLAGS64	(VM_READ | VM_WRITE | \
 					 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
 
+#ifndef CONFIG_PAX_PAGEEXEC
 #define VM_STACK_DEFAULT_FLAGS \
 	(is_32bit_task() ? \
 	 VM_STACK_DEFAULT_FLAGS32 : VM_STACK_DEFAULT_FLAGS64)
+#endif
 
 #include <asm-generic/getorder.h>
 
diff --git a/arch/powerpc/include/asm/pgalloc-64.h b/arch/powerpc/include/asm/pgalloc-64.h
index 8d5fc3a..528a418 100644
--- a/arch/powerpc/include/asm/pgalloc-64.h
+++ b/arch/powerpc/include/asm/pgalloc-64.h
@@ -54,6 +54,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 #ifndef CONFIG_PPC_64K_PAGES
 
 #define pgd_populate(MM, PGD, PUD)	pgd_set(PGD, __pgtable_ptr_val(PUD))
+#define pgd_populate_kernel(MM, PGD, PUD)	pgd_populate((MM), (PGD), (PUD))
 
 static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
 {
@@ -71,6 +72,11 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
 	pud_set(pud, __pgtable_ptr_val(pmd));
 }
 
+static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
+{
+	pud_populate(mm, pud, pmd);
+}
+
 static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
 				       pte_t *pte)
 {
@@ -195,6 +201,11 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
 	pud_set(pud, __pgtable_ptr_val(pmd));
 }
 
+static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
+{
+	pud_populate(mm, pud, pmd);
+}
+
 static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
 				       pte_t *pte)
 {
diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h
index 47897a3..6d21683 100644
--- a/arch/powerpc/include/asm/pgtable.h
+++ b/arch/powerpc/include/asm/pgtable.h
@@ -1,6 +1,7 @@
 #ifndef _ASM_POWERPC_PGTABLE_H
 #define _ASM_POWERPC_PGTABLE_H
 
+#include <linux/const.h>
 #ifndef __ASSEMBLY__
 #include <linux/mmdebug.h>
 #include <linux/mmzone.h>
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index 166d863..7d5ebdf 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -261,6 +261,7 @@
 #define SPRN_DBCR	0x136	/* e300 Data Breakpoint Control Reg */
 #define SPRN_DSISR	0x012	/* Data Storage Interrupt Status Register */
 #define   DSISR_NOHPTE		0x40000000	/* no translation found */
+#define   DSISR_GUARDED		0x10000000	/* fetch from guarded storage */
 #define   DSISR_PROTFAULT	0x08000000	/* protection fault */
 #define   DSISR_ISSTORE		0x02000000	/* access was a store */
 #define   DSISR_DABRMATCH	0x00400000	/* hit data breakpoint */
diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h
index e1afd4c..d75924a 100644
--- a/arch/powerpc/include/asm/smp.h
+++ b/arch/powerpc/include/asm/smp.h
@@ -51,7 +51,7 @@ struct smp_ops_t {
 	int   (*cpu_disable)(void);
 	void  (*cpu_die)(unsigned int nr);
 	int   (*cpu_bootable)(unsigned int nr);
-};
+} __no_const;
 
 extern void smp_send_debugger_break(void);
 extern void start_secondary_resume(void);
diff --git a/arch/powerpc/include/asm/spinlock.h b/arch/powerpc/include/asm/spinlock.h
index 523673d..4aeef3b 100644
--- a/arch/powerpc/include/asm/spinlock.h
+++ b/arch/powerpc/include/asm/spinlock.h
@@ -202,13 +202,29 @@ static inline long __arch_read_trylock(arch_rwlock_t *rw)
 	__asm__ __volatile__(
 "1:	" PPC_LWARX(%0,0,%1,1) "\n"
 	__DO_SIGN_EXTEND
-"	addic.		%0,%0,1\n\
-	ble-		2f\n"
+
+#ifdef	CONFIG_PAX_REFCOUNT
+"	mcrxr	cr0\n"
+"	addico.		%0,%0,1\n"
+"	bf 4*cr0+so, 3f\n"
+"2:.long " "0x00c00b00""\n"
+#else
+"	addic.		%0,%0,1\n"
+#endif
+
+"3:\n"
+	"ble-		4f\n"
 	PPC405_ERR77(0,%1)
 "	stwcx.		%0,0,%1\n\
 	bne-		1b\n"
 	PPC_ACQUIRE_BARRIER
-"2:"	: "=&r" (tmp)
+"4:"	
+
+#ifdef CONFIG_PAX_REFCOUNT
+	_ASM_EXTABLE(2b,4b)
+#endif
+
+	: "=&r" (tmp)
 	: "r" (&rw->lock)
 	: "cr0", "xer", "memory");
 
@@ -284,11 +300,27 @@ static inline void arch_read_unlock(arch_rwlock_t *rw)
 	__asm__ __volatile__(
 	"# read_unlock\n\t"
 	PPC_RELEASE_BARRIER
-"1:	lwarx		%0,0,%1\n\
-	addic		%0,%0,-1\n"
+"1:	lwarx		%0,0,%1\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"	mcrxr 	cr0\n"
+"	addico.		%0,%0,-1\n"
+"	bf 4*cr0+so, 3f\n"
+"2:.long " "0x00c00b00""\n"
+#else
+"	addic.		%0,%0,-1\n"
+#endif
+
+"3:\n"
 	PPC405_ERR77(0,%1)
 "	stwcx.		%0,0,%1\n\
 	bne-		1b"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"\n4:\n"
+	_ASM_EXTABLE(2b, 4b)
+#endif
+
 	: "=&r"(tmp)
 	: "r"(&rw->lock)
 	: "cr0", "xer", "memory");
diff --git a/arch/powerpc/include/asm/string.h b/arch/powerpc/include/asm/string.h
index e40010a..d3c3d6b 100644
--- a/arch/powerpc/include/asm/string.h
+++ b/arch/powerpc/include/asm/string.h
@@ -15,17 +15,17 @@
 #define __HAVE_ARCH_MEMCMP
 #define __HAVE_ARCH_MEMCHR
 
-extern char * strcpy(char *,const char *);
-extern char * strncpy(char *,const char *, __kernel_size_t);
+extern char * strcpy(char *,const char *) __nocapture(2);
+extern char * strncpy(char *,const char *, __kernel_size_t) __nocapture(2);
 extern __kernel_size_t strlen(const char *);
-extern int strcmp(const char *,const char *);
-extern int strncmp(const char *, const char *, __kernel_size_t);
-extern char * strcat(char *, const char *);
+extern int strcmp(const char *,const char *) __nocapture(1, 2);
+extern int strncmp(const char *, const char *, __kernel_size_t) __nocapture(1, 2);
+extern char * strcat(char *, const char *) __nocapture(2);
 extern void * memset(void *,int,__kernel_size_t);
-extern void * memcpy(void *,const void *,__kernel_size_t);
-extern void * memmove(void *,const void *,__kernel_size_t);
-extern int memcmp(const void *,const void *,__kernel_size_t);
-extern void * memchr(const void *,int,__kernel_size_t);
+extern void * memcpy(void *,const void *,__kernel_size_t) __nocapture(2);
+extern void * memmove(void *,const void *,__kernel_size_t) __nocapture(2);
+extern int memcmp(const void *,const void *,__kernel_size_t) __nocapture(1, 2);
+extern void * memchr(const void *,int,__kernel_size_t) __nocapture(1);
 
 #endif /* __KERNEL__ */
 
diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h
index 7efee4a..48d47cc 100644
--- a/arch/powerpc/include/asm/thread_info.h
+++ b/arch/powerpc/include/asm/thread_info.h
@@ -101,6 +101,8 @@ static inline struct thread_info *current_thread_info(void)
 #if defined(CONFIG_PPC64)
 #define TIF_ELF2ABI		18	/* function descriptors must die! */
 #endif
+/* mask must be expressable within 16 bits to satisfy 'andi' instruction reqs */
+#define TIF_GRSEC_SETXID	6	/* update credentials on syscall entry/exit */
 
 /* as above, but as bit values */
 #define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)
@@ -119,9 +121,10 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_SYSCALL_TRACEPOINT	(1<<TIF_SYSCALL_TRACEPOINT)
 #define _TIF_EMULATE_STACK_STORE	(1<<TIF_EMULATE_STACK_STORE)
 #define _TIF_NOHZ		(1<<TIF_NOHZ)
+#define _TIF_GRSEC_SETXID	(1<<TIF_GRSEC_SETXID)
 #define _TIF_SYSCALL_DOTRACE	(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
 				 _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT | \
-				 _TIF_NOHZ)
+				 _TIF_NOHZ | _TIF_GRSEC_SETXID)
 
 #define _TIF_USER_WORK_MASK	(_TIF_SIGPENDING | _TIF_NEED_RESCHED | \
 				 _TIF_NOTIFY_RESUME | _TIF_UPROBE | \
diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h
index b7c20f0..4adc0f1 100644
--- a/arch/powerpc/include/asm/uaccess.h
+++ b/arch/powerpc/include/asm/uaccess.h
@@ -58,6 +58,7 @@
 
 #endif
 
+#define access_ok_noprefault(type, addr, size) access_ok((type), (addr), (size))
 #define access_ok(type, addr, size)		\
 	(__chk_user_ptr(addr),			\
 	 __access_ok((__force unsigned long)(addr), (size), get_fs()))
@@ -303,52 +304,6 @@ do {								\
 extern unsigned long __copy_tofrom_user(void __user *to,
 		const void __user *from, unsigned long size);
 
-#ifndef __powerpc64__
-
-static inline unsigned long copy_from_user(void *to,
-		const void __user *from, unsigned long n)
-{
-	unsigned long over;
-
-	if (access_ok(VERIFY_READ, from, n))
-		return __copy_tofrom_user((__force void __user *)to, from, n);
-	if ((unsigned long)from < TASK_SIZE) {
-		over = (unsigned long)from + n - TASK_SIZE;
-		return __copy_tofrom_user((__force void __user *)to, from,
-				n - over) + over;
-	}
-	return n;
-}
-
-static inline unsigned long copy_to_user(void __user *to,
-		const void *from, unsigned long n)
-{
-	unsigned long over;
-
-	if (access_ok(VERIFY_WRITE, to, n))
-		return __copy_tofrom_user(to, (__force void __user *)from, n);
-	if ((unsigned long)to < TASK_SIZE) {
-		over = (unsigned long)to + n - TASK_SIZE;
-		return __copy_tofrom_user(to, (__force void __user *)from,
-				n - over) + over;
-	}
-	return n;
-}
-
-#else /* __powerpc64__ */
-
-#define __copy_in_user(to, from, size) \
-	__copy_tofrom_user((to), (from), (size))
-
-extern unsigned long copy_from_user(void *to, const void __user *from,
-				    unsigned long n);
-extern unsigned long copy_to_user(void __user *to, const void *from,
-				  unsigned long n);
-extern unsigned long copy_in_user(void __user *to, const void __user *from,
-				  unsigned long n);
-
-#endif /* __powerpc64__ */
-
 static inline unsigned long __copy_from_user_inatomic(void *to,
 		const void __user *from, unsigned long n)
 {
@@ -372,6 +327,10 @@ static inline unsigned long __copy_from_user_inatomic(void *to,
 		if (ret == 0)
 			return 0;
 	}
+
+	if (!__builtin_constant_p(n))
+		check_object_size(to, n, false);
+
 	return __copy_tofrom_user((__force void __user *)to, from, n);
 }
 
@@ -398,6 +357,10 @@ static inline unsigned long __copy_to_user_inatomic(void __user *to,
 		if (ret == 0)
 			return 0;
 	}
+
+	if (!__builtin_constant_p(n))
+		check_object_size(from, n, true);
+
 	return __copy_tofrom_user(to, (__force const void __user *)from, n);
 }
 
@@ -415,6 +378,92 @@ static inline unsigned long __copy_to_user(void __user *to,
 	return __copy_to_user_inatomic(to, from, size);
 }
 
+#ifndef __powerpc64__
+
+static inline unsigned long __must_check copy_from_user(void *to,
+		const void __user *from, unsigned long n)
+{
+	unsigned long over;
+
+	if ((long)n < 0)
+		return n;
+
+	if (access_ok(VERIFY_READ, from, n)) {
+		if (!__builtin_constant_p(n))
+			check_object_size(to, n, false);
+		return __copy_tofrom_user((__force void __user *)to, from, n);
+	}
+	if ((unsigned long)from < TASK_SIZE) {
+		over = (unsigned long)from + n - TASK_SIZE;
+		if (!__builtin_constant_p(n - over))
+			check_object_size(to, n - over, false);
+		return __copy_tofrom_user((__force void __user *)to, from,
+				n - over) + over;
+	}
+	return n;
+}
+
+static inline unsigned long __must_check copy_to_user(void __user *to,
+		const void *from, unsigned long n)
+{
+	unsigned long over;
+
+	if ((long)n < 0)
+		return n;
+
+	if (access_ok(VERIFY_WRITE, to, n)) {
+		if (!__builtin_constant_p(n))
+			check_object_size(from, n, true);
+		return __copy_tofrom_user(to, (__force void __user *)from, n);
+	}
+	if ((unsigned long)to < TASK_SIZE) {
+		over = (unsigned long)to + n - TASK_SIZE;
+		if (!__builtin_constant_p(n))
+			check_object_size(from, n - over, true);
+		return __copy_tofrom_user(to, (__force void __user *)from,
+				n - over) + over;
+	}
+	return n;
+}
+
+#else /* __powerpc64__ */
+
+#define __copy_in_user(to, from, size) \
+	__copy_tofrom_user((to), (from), (size))
+
+static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long n)
+{
+	if ((long)n < 0 || n > INT_MAX)
+		return n;
+
+	if (!__builtin_constant_p(n))
+		check_object_size(to, n, false);
+
+	if (likely(access_ok(VERIFY_READ, from, n)))
+		n = __copy_from_user(to, from, n);
+	else
+		memset(to, 0, n);
+	return n;
+}
+
+static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned long n)
+{
+	if ((long)n < 0 || n > INT_MAX)
+		return n;
+
+	if (likely(access_ok(VERIFY_WRITE, to, n))) {
+		if (!__builtin_constant_p(n))
+			check_object_size(from, n, true);
+		n = __copy_to_user(to, from, n);
+	}
+	return n;
+}
+
+extern unsigned long copy_in_user(void __user *to, const void __user *from,
+				  unsigned long n);
+
+#endif /* __powerpc64__ */
+
 extern unsigned long __clear_user(void __user *addr, unsigned long size);
 
 static inline unsigned long clear_user(void __user *addr, unsigned long size)
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 2da380f..0ba9052 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -14,6 +14,11 @@ CFLAGS_prom_init.o      += -fPIC
 CFLAGS_btext.o		+= -fPIC
 endif
 
+CFLAGS_cputable.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
+CFLAGS_prom_init.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
+CFLAGS_btext.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
+CFLAGS_prom.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
+
 ifdef CONFIG_FUNCTION_TRACER
 # Do not trace early boot code
 CFLAGS_REMOVE_cputable.o = -mno-sched-epilog $(CC_FLAGS_FTRACE)
@@ -26,6 +31,8 @@ CFLAGS_REMOVE_ftrace.o = -mno-sched-epilog $(CC_FLAGS_FTRACE)
 CFLAGS_REMOVE_time.o = -mno-sched-epilog $(CC_FLAGS_FTRACE)
 endif
 
+CFLAGS_REMOVE_prom_init.o += $(LATENT_ENTROPY_PLUGIN_CFLAGS)
+
 obj-y				:= cputable.o ptrace.o syscalls.o \
 				   irq.o align.o signal_32.o pmc.o vdso.o \
 				   process.o systbl.o idle.o \
diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S
index 488e631..6cdd928 100644
--- a/arch/powerpc/kernel/exceptions-64e.S
+++ b/arch/powerpc/kernel/exceptions-64e.S
@@ -1010,6 +1010,7 @@ storage_fault_common:
 	std	r14,_DAR(r1)
 	std	r15,_DSISR(r1)
 	addi	r3,r1,STACK_FRAME_OVERHEAD
+	bl	save_nvgprs
 	mr	r4,r14
 	mr	r5,r15
 	ld	r14,PACA_EXGEN+EX_R14(r13)
@@ -1018,8 +1019,7 @@ storage_fault_common:
 	cmpdi	r3,0
 	bne-	1f
 	b	ret_from_except_lite
-1:	bl	save_nvgprs
-	mr	r5,r3
+1:	mr	r5,r3
 	addi	r3,r1,STACK_FRAME_OVERHEAD
 	ld	r4,_DAR(r1)
 	bl	bad_page_fault
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index 2b66f25..80884d4 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -1578,10 +1578,10 @@ handle_page_fault:
 11:	ld	r4,_DAR(r1)
 	ld	r5,_DSISR(r1)
 	addi	r3,r1,STACK_FRAME_OVERHEAD
+	bl	save_nvgprs
 	bl	do_page_fault
 	cmpdi	r3,0
 	beq+	12f
-	bl	save_nvgprs
 	mr	r5,r3
 	addi	r3,r1,STACK_FRAME_OVERHEAD
 	lwz	r4,_DAR(r1)
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 290559d..0094ddb 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -460,6 +460,8 @@ void migrate_irqs(void)
 }
 #endif
 
+extern void gr_handle_kernel_exploit(void);
+
 static inline void check_stack_overflow(void)
 {
 #ifdef CONFIG_DEBUG_STACKOVERFLOW
@@ -472,6 +474,7 @@ static inline void check_stack_overflow(void)
 		pr_err("do_IRQ: stack overflow: %ld\n",
 			sp - sizeof(struct thread_info));
 		dump_stack();
+		gr_handle_kernel_exploit();
 	}
 #endif
 }
diff --git a/arch/powerpc/kernel/module_32.c b/arch/powerpc/kernel/module_32.c
index 5a7a78f..c0e4207 100644
--- a/arch/powerpc/kernel/module_32.c
+++ b/arch/powerpc/kernel/module_32.c
@@ -158,7 +158,7 @@ int module_frob_arch_sections(Elf32_Ehdr *hdr,
 			me->arch.core_plt_section = i;
 	}
 	if (!me->arch.core_plt_section || !me->arch.init_plt_section) {
-		pr_err("Module doesn't contain .plt or .init.plt sections.\n");
+		pr_err("Module $s doesn't contain .plt or .init.plt sections.\n", me->name);
 		return -ENOEXEC;
 	}
 
@@ -188,11 +188,16 @@ static uint32_t do_plt_call(void *location,
 
 	pr_debug("Doing plt for call to 0x%x at 0x%x\n", val, (unsigned int)location);
 	/* Init, or core PLT? */
-	if (location >= mod->core_layout.base
-	    && location < mod->core_layout.base + mod->core_layout.size)
+	if ((location >= mod->core_layout.base_rx && location < mod->core_layout.base_rx + mod->core_layout.size_rx) ||
+	    (location >= mod->core_layout.base_rw && location < mod->core_layout.base_rw + mod->core_layout.size_rw))
 		entry = (void *)sechdrs[mod->arch.core_plt_section].sh_addr;
-	else
+	else if ((location >= mod->init_layout.base_rx && location < mod->init_layout.base_rx + mod->init_layout.size_rx) ||
+		 (location >= mod->init_layout.base_rw && location < mod->init_layout.base_rw + mod->init_layout.size_rw))
 		entry = (void *)sechdrs[mod->arch.init_plt_section].sh_addr;
+	else {
+		printk(KERN_ERR "%s: invalid R_PPC_REL24 entry found\n", mod->name);
+		return ~0UL;
+	}
 
 	/* Find this entry, or if that fails, the next avail. entry */
 	while (entry->jump[0]) {
@@ -301,7 +306,7 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
 #ifdef CONFIG_DYNAMIC_FTRACE
 int module_finalize_ftrace(struct module *module, const Elf_Shdr *sechdrs)
 {
-	module->arch.tramp = do_plt_call(module->core_layout.base,
+	module->arch.tramp = do_plt_call(module->core_layout.base_rx,
 					 (unsigned long)ftrace_caller,
 					 sechdrs, module);
 	if (!module->arch.tramp)
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index b8500b4..2873781 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1318,8 +1318,8 @@ void show_regs(struct pt_regs * regs)
 	 * Lookup NIP late so we have the best change of getting the
 	 * above info out without failing
 	 */
-	printk("NIP ["REG"] %pS\n", regs->nip, (void *)regs->nip);
-	printk("LR ["REG"] %pS\n", regs->link, (void *)regs->link);
+	printk("NIP ["REG"] %pA\n", regs->nip, (void *)regs->nip);
+	printk("LR ["REG"] %pA\n", regs->link, (void *)regs->link);
 #endif
 	show_stack(current, (unsigned long *) regs->gpr[1]);
 	if (!user_mode(regs))
@@ -1829,10 +1829,10 @@ void show_stack(struct task_struct *tsk, unsigned long *stack)
 		newsp = stack[0];
 		ip = stack[STACK_FRAME_LR_SAVE];
 		if (!firstframe || ip != lr) {
-			printk("["REG"] ["REG"] %pS", sp, ip, (void *)ip);
+			printk("["REG"] ["REG"] %pA", sp, ip, (void *)ip);
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
 			if ((ip == rth) && curr_frame >= 0) {
-				printk(" (%pS)",
+				printk(" (%pA)",
 				       (void *)current->ret_stack[curr_frame].ret);
 				curr_frame--;
 			}
@@ -1852,7 +1852,7 @@ void show_stack(struct task_struct *tsk, unsigned long *stack)
 			struct pt_regs *regs = (struct pt_regs *)
 				(sp + STACK_FRAME_OVERHEAD);
 			lr = regs->link;
-			printk("--- interrupt: %lx at %pS\n    LR = %pS\n",
+			printk("--- interrupt: %lx at %pA\n    LR = %pA\n",
 			       regs->trap, (void *)regs->nip, (void *)lr);
 			firstframe = 1;
 		}
@@ -1889,13 +1889,6 @@ void notrace __ppc64_runlatch_off(void)
 }
 #endif /* CONFIG_PPC64 */
 
-unsigned long arch_align_stack(unsigned long sp)
-{
-	if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
-		sp -= get_random_int() & ~PAGE_MASK;
-	return sp & ~0xf;
-}
-
 static inline unsigned long brk_rnd(void)
 {
         unsigned long rnd = 0;
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 30a03c0..e2d507b 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -1801,6 +1801,10 @@ static int do_seccomp(struct pt_regs *regs)
 static inline int do_seccomp(struct pt_regs *regs) { return 0; }
 #endif /* CONFIG_SECCOMP */
 
+#ifdef CONFIG_GRKERNSEC_SETXID
+extern void gr_delayed_cred_worker(void);
+#endif
+
 /**
  * do_syscall_trace_enter() - Do syscall tracing on kernel entry.
  * @regs: the pt_regs of the task to trace (current)
@@ -1829,6 +1833,11 @@ long do_syscall_trace_enter(struct pt_regs *regs)
 	if (do_seccomp(regs))
 		return -1;
 
+#ifdef CONFIG_GRKERNSEC_SETXID
+	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
+		gr_delayed_cred_worker();
+#endif
+
 	if (test_thread_flag(TIF_SYSCALL_TRACE)) {
 		/*
 		 * The tracer may decide to abort the syscall, if so tracehook
@@ -1871,6 +1880,11 @@ void do_syscall_trace_leave(struct pt_regs *regs)
 {
 	int step;
 
+#ifdef CONFIG_GRKERNSEC_SETXID
+	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
+		gr_delayed_cred_worker();
+#endif
+
 	audit_syscall_exit(regs);
 
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index b6aa378..a491f51 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -1000,7 +1000,7 @@ int handle_rt_signal32(struct ksignal *ksig, sigset_t *oldset,
 	/* Save user registers on the stack */
 	frame = &rt_sf->uc.uc_mcontext;
 	addr = frame;
-	if (vdso32_rt_sigtramp && current->mm->context.vdso_base) {
+	if (vdso32_rt_sigtramp && current->mm->context.vdso_base != ~0UL) {
 		sigret = 0;
 		tramp = current->mm->context.vdso_base + vdso32_rt_sigtramp;
 	} else {
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index 2552079..a290dc8a 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -751,7 +751,7 @@ int handle_rt_signal64(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs
 	current->thread.fp_state.fpscr = 0;
 
 	/* Set up to return from userspace. */
-	if (vdso64_rt_sigtramp && current->mm->context.vdso_base) {
+	if (vdso64_rt_sigtramp && current->mm->context.vdso_base != ~0UL) {
 		regs->link = current->mm->context.vdso_base + vdso64_rt_sigtramp;
 	} else {
 		err |= setup_trampoline(__NR_rt_sigreturn, &frame->tramp[0]);
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 9229ba6..f6aaa3c 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -36,6 +36,7 @@
 #include <linux/debugfs.h>
 #include <linux/ratelimit.h>
 #include <linux/context_tracking.h>
+#include <linux/uaccess.h>
 
 #include <asm/emulated_ops.h>
 #include <asm/pgtable.h>
@@ -142,6 +143,8 @@ static unsigned __kprobes long oops_begin(struct pt_regs *regs)
 	return flags;
 }
 
+extern void gr_handle_kernel_exploit(void);
+
 static void __kprobes oops_end(unsigned long flags, struct pt_regs *regs,
 			       int signr)
 {
@@ -191,6 +194,9 @@ static void __kprobes oops_end(unsigned long flags, struct pt_regs *regs,
 		panic("Fatal exception in interrupt");
 	if (panic_on_oops)
 		panic("Fatal exception");
+
+	gr_handle_kernel_exploit();
+
 	do_exit(signr);
 }
 
@@ -1138,6 +1144,26 @@ void __kprobes program_check_exception(struct pt_regs *regs)
 	enum ctx_state prev_state = exception_enter();
 	unsigned int reason = get_reason(regs);
 
+#ifdef CONFIG_PAX_REFCOUNT
+	unsigned int bkpt;
+	const struct exception_table_entry *entry;
+
+	if (reason & REASON_ILLEGAL) {
+		/* Check if PaX bad instruction */
+		if (!probe_kernel_address(regs->nip, bkpt) && bkpt == 0xc00b00) {
+			current->thread.trap_nr = 0;
+			pax_report_refcount_overflow(regs);
+			/* fixup_exception() for PowerPC does not exist, simulate its job */
+			if ((entry = search_exception_tables(regs->nip)) != NULL) {
+				regs->nip = entry->fixup;
+				return;
+			}
+			/* fixup_exception() could not handle */
+			goto bail;
+		}
+	}
+#endif
+
 	/* We can now get here via a FP Unavailable exception if the core
 	 * has no FPU, in that case the reason flags will be 0 */
 
diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
index def1b8b..51ae209 100644
--- a/arch/powerpc/kernel/vdso.c
+++ b/arch/powerpc/kernel/vdso.c
@@ -34,6 +34,7 @@
 #include <asm/vdso.h>
 #include <asm/vdso_datapage.h>
 #include <asm/setup.h>
+#include <asm/mman.h>
 
 #undef DEBUG
 
@@ -179,7 +180,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 	vdso_base = VDSO32_MBASE;
 #endif
 
-	current->mm->context.vdso_base = 0;
+	current->mm->context.vdso_base = ~0UL;
 
 	/* vDSO has a problem and was disabled, just don't "enable" it for the
 	 * process
@@ -199,7 +200,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 	vdso_base = get_unmapped_area(NULL, vdso_base,
 				      (vdso_pages << PAGE_SHIFT) +
 				      ((VDSO_ALIGNMENT - 1) & PAGE_MASK),
-				      0, 0);
+				      0, MAP_PRIVATE | MAP_EXECUTABLE);
 	if (IS_ERR_VALUE(vdso_base)) {
 		rc = vdso_base;
 		goto fail_mmapsem;
diff --git a/arch/powerpc/lib/usercopy_64.c b/arch/powerpc/lib/usercopy_64.c
index 5eea6f3..5d10396 100644
--- a/arch/powerpc/lib/usercopy_64.c
+++ b/arch/powerpc/lib/usercopy_64.c
@@ -9,22 +9,6 @@
 #include <linux/module.h>
 #include <asm/uaccess.h>
 
-unsigned long copy_from_user(void *to, const void __user *from, unsigned long n)
-{
-	if (likely(access_ok(VERIFY_READ, from, n)))
-		n = __copy_from_user(to, from, n);
-	else
-		memset(to, 0, n);
-	return n;
-}
-
-unsigned long copy_to_user(void __user *to, const void *from, unsigned long n)
-{
-	if (likely(access_ok(VERIFY_WRITE, to, n)))
-		n = __copy_to_user(to, from, n);
-	return n;
-}
-
 unsigned long copy_in_user(void __user *to, const void __user *from,
 			   unsigned long n)
 {
@@ -35,7 +19,5 @@ unsigned long copy_in_user(void __user *to, const void __user *from,
 	return n;
 }
 
-EXPORT_SYMBOL(copy_from_user);
-EXPORT_SYMBOL(copy_to_user);
 EXPORT_SYMBOL(copy_in_user);
 
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
index a67c6d7..a662e6d 100644
--- a/arch/powerpc/mm/fault.c
+++ b/arch/powerpc/mm/fault.c
@@ -34,6 +34,10 @@
 #include <linux/context_tracking.h>
 #include <linux/hugetlb.h>
 #include <linux/uaccess.h>
+#include <linux/slab.h>
+#include <linux/pagemap.h>
+#include <linux/compiler.h>
+#include <linux/unistd.h>
 
 #include <asm/firmware.h>
 #include <asm/page.h>
@@ -68,6 +72,33 @@ static inline int notify_page_fault(struct pt_regs *regs)
 }
 #endif
 
+#ifdef CONFIG_PAX_PAGEEXEC
+/*
+ * PaX: decide what to do with offenders (regs->nip = fault address)
+ *
+ * returns 1 when task should be killed
+ */
+static int pax_handle_fetch_fault(struct pt_regs *regs)
+{
+	return 1;
+}
+
+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
+{
+	unsigned long i;
+
+	printk(KERN_ERR "PAX: bytes at PC: ");
+	for (i = 0; i < 5; i++) {
+		unsigned int c;
+		if (get_user(c, (unsigned int __user *)pc+i))
+			printk(KERN_CONT "???????? ");
+		else
+			printk(KERN_CONT "%08x ", c);
+	}
+	printk("\n");
+}
+#endif
+
 /*
  * Check whether the instruction at regs->nip is a store using
  * an update addressing form which will update r1.
@@ -227,7 +258,7 @@ int __kprobes do_page_fault(struct pt_regs *regs, unsigned long address,
 	 * indicate errors in DSISR but can validly be set in SRR1.
 	 */
 	if (trap == 0x400)
-		error_code &= 0x48200000;
+		error_code &= 0x58200000;
 	else
 		is_write = error_code & DSISR_ISSTORE;
 #else
@@ -384,12 +415,16 @@ good_area:
          * "undefined".  Of those that can be set, this is the only
          * one which seems bad.
          */
-	if (error_code & 0x10000000)
+	if (error_code & DSISR_GUARDED)
                 /* Guarded storage error. */
 		goto bad_area;
 #endif /* CONFIG_8xx */
 
 	if (is_exec) {
+#ifdef CONFIG_PPC_STD_MMU
+		if (error_code & DSISR_GUARDED)
+			goto bad_area;
+#endif
 		/*
 		 * Allow execution from readable areas if the MMU does not
 		 * provide separate controls over reading and executing.
@@ -484,6 +519,23 @@ bad_area:
 bad_area_nosemaphore:
 	/* User mode accesses cause a SIGSEGV */
 	if (user_mode(regs)) {
+
+#ifdef CONFIG_PAX_PAGEEXEC
+		if (mm->pax_flags & MF_PAX_PAGEEXEC) {
+#ifdef CONFIG_PPC_STD_MMU
+			if (is_exec && (error_code & (DSISR_PROTFAULT | DSISR_GUARDED))) {
+#else
+			if (is_exec && regs->nip == address) {
+#endif
+				switch (pax_handle_fetch_fault(regs)) {
+				}
+
+				pax_report_fault(regs, (void *)regs->nip, (void *)regs->gpr[PT_R1]);
+				do_group_exit(SIGKILL);
+			}
+		}
+#endif
+
 		_exception(SIGSEGV, regs, code, address);
 		goto bail;
 	}
diff --git a/arch/powerpc/mm/mmap.c b/arch/powerpc/mm/mmap.c
index 4087705..7e75693 100644
--- a/arch/powerpc/mm/mmap.c
+++ b/arch/powerpc/mm/mmap.c
@@ -86,6 +86,10 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 {
 	unsigned long random_factor = 0UL;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (current->flags & PF_RANDOMIZE)
 		random_factor = arch_mmap_rnd();
 
@@ -95,9 +99,21 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	 */
 	if (mmap_is_legacy()) {
 		mm->mmap_base = TASK_UNMAPPED_BASE;
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			mm->mmap_base += mm->delta_mmap;
+#endif
+
 		mm->get_unmapped_area = arch_get_unmapped_area;
 	} else {
 		mm->mmap_base = mmap_base(random_factor);
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
+#endif
+
 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
 	}
 }
diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c
index 42954f0..a8252e2 100644
--- a/arch/powerpc/mm/slice.c
+++ b/arch/powerpc/mm/slice.c
@@ -105,7 +105,7 @@ static int slice_area_is_free(struct mm_struct *mm, unsigned long addr,
 	if ((mm->task_size - len) < addr)
 		return 0;
 	vma = find_vma(mm, addr);
-	return (!vma || (addr + len) <= vma->vm_start);
+	return check_heap_stack_gap(vma, addr, len, 0);
 }
 
 static int slice_low_has_vma(struct mm_struct *mm, unsigned long slice)
@@ -276,6 +276,12 @@ static unsigned long slice_find_area_bottomup(struct mm_struct *mm,
 	info.align_offset = 0;
 
 	addr = TASK_UNMAPPED_BASE;
+
+#ifdef CONFIG_PAX_RANDMMAP
+	if (mm->pax_flags & MF_PAX_RANDMMAP)
+		addr += mm->delta_mmap;
+#endif
+
 	while (addr < TASK_SIZE) {
 		info.low_limit = addr;
 		if (!slice_scan_available(addr, available, 1, &addr))
@@ -409,6 +415,11 @@ unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len,
 	if (fixed && addr > (mm->task_size - len))
 		return -ENOMEM;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!fixed && (mm->pax_flags & MF_PAX_RANDMMAP))
+		addr = 0;
+#endif
+
 	/* If hint, make sure it matches our alignment restrictions */
 	if (!fixed && addr) {
 		addr = _ALIGN_UP(addr, 1ul << pshift);
@@ -554,10 +565,10 @@ unsigned long arch_get_unmapped_area(struct file *filp,
 }
 
 unsigned long arch_get_unmapped_area_topdown(struct file *filp,
-					     const unsigned long addr0,
-					     const unsigned long len,
-					     const unsigned long pgoff,
-					     const unsigned long flags)
+					     unsigned long addr0,
+					     unsigned long len,
+					     unsigned long pgoff,
+					     unsigned long flags)
 {
 	return slice_get_unmapped_area(addr0, len, flags,
 				       current->mm->context.user_psize, 1);
diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c
index 2936a00..2e73ed6 100644
--- a/arch/powerpc/platforms/cell/spufs/file.c
+++ b/arch/powerpc/platforms/cell/spufs/file.c
@@ -263,9 +263,9 @@ spufs_mem_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 	return VM_FAULT_NOPAGE;
 }
 
-static int spufs_mem_mmap_access(struct vm_area_struct *vma,
+static ssize_t spufs_mem_mmap_access(struct vm_area_struct *vma,
 				unsigned long address,
-				void *buf, int len, int write)
+				void *buf, size_t len, int write)
 {
 	struct spu_context *ctx = vma->vm_file->private_data;
 	unsigned long offset = address - vma->vm_start;
diff --git a/arch/s390/Kconfig.debug b/arch/s390/Kconfig.debug
index 26c5d5be..a308c28 100644
--- a/arch/s390/Kconfig.debug
+++ b/arch/s390/Kconfig.debug
@@ -9,6 +9,7 @@ config S390_PTDUMP
 	bool "Export kernel pagetable layout to userspace via debugfs"
 	depends on DEBUG_KERNEL
 	select DEBUG_FS
+	depends on !GRKERNSEC_KMEM
 	---help---
 	  Say Y here if you want to show the kernel pagetable layout in a
 	  debugfs file. This information is only useful for kernel developers
diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
index 911064a..dcbb025 100644
--- a/arch/s390/include/asm/atomic.h
+++ b/arch/s390/include/asm/atomic.h
@@ -322,4 +322,14 @@ static inline long long atomic64_dec_if_positive(atomic64_t *v)
 #define atomic64_dec_and_test(_v)	(atomic64_sub_return(1, _v) == 0)
 #define atomic64_inc_not_zero(v)	atomic64_add_unless((v), 1, 0)
 
+#define atomic64_read_unchecked(v)		atomic64_read(v)
+#define atomic64_set_unchecked(v, i)		atomic64_set((v), (i))
+#define atomic64_add_unchecked(a, v)		atomic64_add((a), (v))
+#define atomic64_add_return_unchecked(a, v)	atomic64_add_return((a), (v))
+#define atomic64_sub_unchecked(a, v)		atomic64_sub((a), (v))
+#define atomic64_inc_unchecked(v)		atomic64_inc(v)
+#define atomic64_inc_return_unchecked(v)	atomic64_inc_return(v)
+#define atomic64_dec_unchecked(v)		atomic64_dec(v)
+#define atomic64_cmpxchg_unchecked(v, o, n)	atomic64_cmpxchg((v), (o), (n))
+
 #endif /* __ARCH_S390_ATOMIC__  */
diff --git a/arch/s390/include/asm/cache.h b/arch/s390/include/asm/cache.h
index 22da3b3..80c7915 100644
--- a/arch/s390/include/asm/cache.h
+++ b/arch/s390/include/asm/cache.h
@@ -9,8 +9,10 @@
 #ifndef __ARCH_S390_CACHE_H
 #define __ARCH_S390_CACHE_H
 
-#define L1_CACHE_BYTES     256
+#include <linux/const.h>
+
 #define L1_CACHE_SHIFT     8
+#define L1_CACHE_BYTES     (_AC(1,UL) << L1_CACHE_SHIFT)
 #define NET_SKB_PAD	   32
 
 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
index 563ab9f..65d8bd4 100644
--- a/arch/s390/include/asm/elf.h
+++ b/arch/s390/include/asm/elf.h
@@ -167,6 +167,13 @@ extern unsigned int vdso_enabled;
 				(STACK_TOP / 3 * 2) : \
 				(STACK_TOP / 3 * 2) & ~((1UL << 32) - 1))
 
+#ifdef CONFIG_PAX_ASLR
+#define PAX_ELF_ET_DYN_BASE	(test_thread_flag(TIF_31BIT) ? 0x10000UL : 0x80000000UL)
+
+#define PAX_DELTA_MMAP_LEN	(test_thread_flag(TIF_31BIT) ? 15 : 26)
+#define PAX_DELTA_STACK_LEN	(test_thread_flag(TIF_31BIT) ? 15 : 26)
+#endif
+
 /* This yields a mask that user programs can use to figure out what
    instruction set this CPU supports. */
 
diff --git a/arch/s390/include/asm/exec.h b/arch/s390/include/asm/exec.h
index c4a93d6..4d2a9b4 100644
--- a/arch/s390/include/asm/exec.h
+++ b/arch/s390/include/asm/exec.h
@@ -7,6 +7,6 @@
 #ifndef __ASM_EXEC_H
 #define __ASM_EXEC_H
 
-extern unsigned long arch_align_stack(unsigned long sp);
+#define arch_align_stack(x) ((x) & ~0xfUL)
 
 #endif /* __ASM_EXEC_H */
diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h
index e0900dd..72d683d 100644
--- a/arch/s390/include/asm/uaccess.h
+++ b/arch/s390/include/asm/uaccess.h
@@ -59,6 +59,7 @@ static inline int __range_ok(unsigned long addr, unsigned long size)
 	__range_ok((unsigned long)(addr), (size));	\
 })
 
+#define access_ok_noprefault(type, addr, size) access_ok((type), (addr), (size))
 #define access_ok(type, addr, size) __access_ok(addr, size)
 
 /*
@@ -272,6 +273,10 @@ static inline unsigned long __must_check
 copy_to_user(void __user *to, const void *from, unsigned long n)
 {
 	might_fault();
+
+	if ((long)n < 0)
+		return n;
+
 	return __copy_to_user(to, from, n);
 }
 
@@ -301,10 +306,14 @@ __compiletime_warning("copy_from_user() buffer size is not provably correct")
 static inline unsigned long __must_check
 copy_from_user(void *to, const void __user *from, unsigned long n)
 {
-	unsigned int sz = __compiletime_object_size(to);
+	size_t sz = __compiletime_object_size(to);
 
 	might_fault();
-	if (unlikely(sz != -1 && sz < n)) {
+
+	if ((long)n < 0)
+		return n;
+
+	if (unlikely(sz != (size_t)-1 && sz < n)) {
 		copy_from_user_overflow();
 		return n;
 	}
diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c
index 7873e17..d21af5b 100644
--- a/arch/s390/kernel/module.c
+++ b/arch/s390/kernel/module.c
@@ -159,11 +159,11 @@ int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
 
 	/* Increase core size by size of got & plt and set start
 	   offsets for got and plt. */
-	me->core_layout.size = ALIGN(me->core_layout.size, 4);
-	me->arch.got_offset = me->core_layout.size;
-	me->core_layout.size += me->arch.got_size;
-	me->arch.plt_offset = me->core_layout.size;
-	me->core_layout.size += me->arch.plt_size;
+	me->core_layout.size_rw = ALIGN(me->core_layout.size_rw, 4);
+	me->arch.got_offset = me->core_layout.size_rw;
+	me->core_layout.size_rw += me->arch.got_size;
+	me->arch.plt_offset = me->core_layout.size_rx;
+	me->core_layout.size_rx += me->arch.plt_size;
 	return 0;
 }
 
@@ -279,7 +279,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
 		if (info->got_initialized == 0) {
 			Elf_Addr *gotent;
 
-			gotent = me->core_layout.base + me->arch.got_offset +
+			gotent = me->core_layout.base_rw + me->arch.got_offset +
 				info->got_offset;
 			*gotent = val;
 			info->got_initialized = 1;
@@ -302,7 +302,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
 			rc = apply_rela_bits(loc, val, 0, 64, 0);
 		else if (r_type == R_390_GOTENT ||
 			 r_type == R_390_GOTPLTENT) {
-			val += (Elf_Addr) me->core_layout.base - loc;
+			val += (Elf_Addr) me->core_layout.base_rw - loc;
 			rc = apply_rela_bits(loc, val, 1, 32, 1);
 		}
 		break;
@@ -315,7 +315,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
 	case R_390_PLTOFF64:	/* 16 bit offset from GOT to PLT. */
 		if (info->plt_initialized == 0) {
 			unsigned int *ip;
-			ip = me->core_layout.base + me->arch.plt_offset +
+			ip = me->core_layout.base_rx + me->arch.plt_offset +
 				info->plt_offset;
 			ip[0] = 0x0d10e310; /* basr 1,0; lg 1,10(1); br 1 */
 			ip[1] = 0x100a0004;
@@ -334,7 +334,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
 			       val - loc + 0xffffUL < 0x1ffffeUL) ||
 			      (r_type == R_390_PLT32DBL &&
 			       val - loc + 0xffffffffULL < 0x1fffffffeULL)))
-				val = (Elf_Addr) me->core_layout.base +
+				val = (Elf_Addr) me->core_layout.base_rx +
 					me->arch.plt_offset +
 					info->plt_offset;
 			val += rela->r_addend - loc;
@@ -356,7 +356,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
 	case R_390_GOTOFF32:	/* 32 bit offset to GOT.  */
 	case R_390_GOTOFF64:	/* 64 bit offset to GOT. */
 		val = val + rela->r_addend -
-			((Elf_Addr) me->core_layout.base + me->arch.got_offset);
+			((Elf_Addr) me->core_layout.base_rw + me->arch.got_offset);
 		if (r_type == R_390_GOTOFF16)
 			rc = apply_rela_bits(loc, val, 0, 16, 0);
 		else if (r_type == R_390_GOTOFF32)
@@ -366,7 +366,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
 		break;
 	case R_390_GOTPC:	/* 32 bit PC relative offset to GOT. */
 	case R_390_GOTPCDBL:	/* 32 bit PC rel. off. to GOT shifted by 1. */
-		val = (Elf_Addr) me->core_layout.base + me->arch.got_offset +
+		val = (Elf_Addr) me->core_layout.base_rw + me->arch.got_offset +
 			rela->r_addend - loc;
 		if (r_type == R_390_GOTPC)
 			rc = apply_rela_bits(loc, val, 1, 32, 0);
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 2bba7df..8f1e6b5 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -234,13 +234,6 @@ unsigned long get_wchan(struct task_struct *p)
 	return 0;
 }
 
-unsigned long arch_align_stack(unsigned long sp)
-{
-	if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
-		sp -= get_random_int() & ~PAGE_MASK;
-	return sp & ~0xf;
-}
-
 static inline unsigned long brk_rnd(void)
 {
 	return (get_random_int() & BRK_RND_MASK) << PAGE_SHIFT;
diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c
index 89cf09e..cc41962 100644
--- a/arch/s390/mm/mmap.c
+++ b/arch/s390/mm/mmap.c
@@ -200,9 +200,9 @@ s390_get_unmapped_area(struct file *filp, unsigned long addr,
 }
 
 static unsigned long
-s390_get_unmapped_area_topdown(struct file *filp, const unsigned long addr,
-			  const unsigned long len, const unsigned long pgoff,
-			  const unsigned long flags)
+s390_get_unmapped_area_topdown(struct file *filp, unsigned long addr,
+			  unsigned long len, unsigned long pgoff,
+			  unsigned long flags)
 {
 	struct mm_struct *mm = current->mm;
 	unsigned long area;
@@ -229,6 +229,10 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 {
 	unsigned long random_factor = 0UL;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (current->flags & PF_RANDOMIZE)
 		random_factor = arch_mmap_rnd();
 
@@ -238,9 +242,21 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	 */
 	if (mmap_is_legacy()) {
 		mm->mmap_base = mmap_base_legacy(random_factor);
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			mm->mmap_base += mm->delta_mmap;
+#endif
+
 		mm->get_unmapped_area = s390_get_unmapped_area;
 	} else {
 		mm->mmap_base = mmap_base(random_factor);
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
+#endif
+
 		mm->get_unmapped_area = s390_get_unmapped_area_topdown;
 	}
 }
diff --git a/arch/score/include/asm/cache.h b/arch/score/include/asm/cache.h
index ae3d59f..f65f075 100644
--- a/arch/score/include/asm/cache.h
+++ b/arch/score/include/asm/cache.h
@@ -1,7 +1,9 @@
 #ifndef _ASM_SCORE_CACHE_H
 #define _ASM_SCORE_CACHE_H
 
+#include <linux/const.h>
+
 #define L1_CACHE_SHIFT		4
-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
+#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
 
 #endif /* _ASM_SCORE_CACHE_H */
diff --git a/arch/score/include/asm/exec.h b/arch/score/include/asm/exec.h
index f9f3cd5..58ff438 100644
--- a/arch/score/include/asm/exec.h
+++ b/arch/score/include/asm/exec.h
@@ -1,6 +1,6 @@
 #ifndef _ASM_SCORE_EXEC_H
 #define _ASM_SCORE_EXEC_H
 
-extern unsigned long arch_align_stack(unsigned long sp);
+#define arch_align_stack(x) (x)
 
 #endif /* _ASM_SCORE_EXEC_H */
diff --git a/arch/score/kernel/process.c b/arch/score/kernel/process.c
index a1519ad3..e8ac1ff 100644
--- a/arch/score/kernel/process.c
+++ b/arch/score/kernel/process.c
@@ -116,8 +116,3 @@ unsigned long get_wchan(struct task_struct *task)
 
 	return task_pt_regs(task)->cp0_epc;
 }
-
-unsigned long arch_align_stack(unsigned long sp)
-{
-	return sp;
-}
diff --git a/arch/sh/include/asm/cache.h b/arch/sh/include/asm/cache.h
index ef9e555..331bd29 100644
--- a/arch/sh/include/asm/cache.h
+++ b/arch/sh/include/asm/cache.h
@@ -9,10 +9,11 @@
 #define __ASM_SH_CACHE_H
 #ifdef __KERNEL__
 
+#include <linux/const.h>
 #include <linux/init.h>
 #include <cpu/cache.h>
 
-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
+#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
 
 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
 
diff --git a/arch/sh/mm/mmap.c b/arch/sh/mm/mmap.c
index 6777177..d44b592 100644
--- a/arch/sh/mm/mmap.c
+++ b/arch/sh/mm/mmap.c
@@ -36,6 +36,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 	int do_colour_align;
+	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
 	struct vm_unmapped_area_info info;
 
 	if (flags & MAP_FIXED) {
@@ -55,6 +56,10 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	if (filp || (flags & MAP_SHARED))
 		do_colour_align = 1;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (addr) {
 		if (do_colour_align)
 			addr = COLOUR_ALIGN(addr, pgoff);
@@ -62,14 +67,13 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 			addr = PAGE_ALIGN(addr);
 
 		vma = find_vma(mm, addr);
-		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
 			return addr;
 	}
 
 	info.flags = 0;
 	info.length = len;
-	info.low_limit = TASK_UNMAPPED_BASE;
+	info.low_limit = mm->mmap_base;
 	info.high_limit = TASK_SIZE;
 	info.align_mask = do_colour_align ? (PAGE_MASK & shm_align_mask) : 0;
 	info.align_offset = pgoff << PAGE_SHIFT;
@@ -77,14 +81,15 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 }
 
 unsigned long
-arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
-			  const unsigned long len, const unsigned long pgoff,
-			  const unsigned long flags)
+arch_get_unmapped_area_topdown(struct file *filp, unsigned long addr0,
+			  unsigned long len, unsigned long pgoff,
+			  unsigned long flags)
 {
 	struct vm_area_struct *vma;
 	struct mm_struct *mm = current->mm;
 	unsigned long addr = addr0;
 	int do_colour_align;
+	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
 	struct vm_unmapped_area_info info;
 
 	if (flags & MAP_FIXED) {
@@ -104,6 +109,10 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	if (filp || (flags & MAP_SHARED))
 		do_colour_align = 1;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	/* requesting a specific address */
 	if (addr) {
 		if (do_colour_align)
@@ -112,8 +121,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 			addr = PAGE_ALIGN(addr);
 
 		vma = find_vma(mm, addr);
-		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
 			return addr;
 	}
 
@@ -135,6 +143,12 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 		VM_BUG_ON(addr != -ENOMEM);
 		info.flags = 0;
 		info.low_limit = TASK_UNMAPPED_BASE;
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			info.low_limit += mm->delta_mmap;
+#endif
+
 		info.high_limit = TASK_SIZE;
 		addr = vm_unmapped_area(&info);
 	}
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 57ffaf2..4d1fe9a 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -39,6 +39,7 @@ config SPARC
 	select GENERIC_STRNCPY_FROM_USER
 	select GENERIC_STRNLEN_USER
 	select MODULES_USE_ELF_RELA
+	select HAVE_GCC_PLUGINS
 	select ODD_RT_SIGACTION
 	select OLD_SIGSUSPEND
 	select ARCH_HAS_SG_CHAIN
diff --git a/arch/sparc/include/asm/atomic_64.h b/arch/sparc/include/asm/atomic_64.h
index f2fbf9e..303217c 100644
--- a/arch/sparc/include/asm/atomic_64.h
+++ b/arch/sparc/include/asm/atomic_64.h
@@ -15,18 +15,38 @@
 #define ATOMIC64_INIT(i)	{ (i) }
 
 #define atomic_read(v)		READ_ONCE((v)->counter)
+static inline int atomic_read_unchecked(const atomic_unchecked_t *v)
+{
+	return READ_ONCE(v->counter);
+}
 #define atomic64_read(v)	READ_ONCE((v)->counter)
+static inline long atomic64_read_unchecked(const atomic64_unchecked_t *v)
+{
+	return READ_ONCE(v->counter);
+}
 
 #define atomic_set(v, i)	WRITE_ONCE(((v)->counter), (i))
+static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i)
+{
+	WRITE_ONCE(v->counter, i);
+}
 #define atomic64_set(v, i)	WRITE_ONCE(((v)->counter), (i))
+static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long i)
+{
+	WRITE_ONCE(v->counter, i);
+}
 
-#define ATOMIC_OP(op)							\
-void atomic_##op(int, atomic_t *);					\
-void atomic64_##op(long, atomic64_t *);
+#define __ATOMIC_OP(op, suffix)						\
+void atomic_##op##suffix(int, atomic##suffix##_t *);			\
+void atomic64_##op##suffix(long, atomic64##suffix##_t *);
 
-#define ATOMIC_OP_RETURN(op)						\
-int atomic_##op##_return(int, atomic_t *);				\
-long atomic64_##op##_return(long, atomic64_t *);
+#define ATOMIC_OP(op) __ATOMIC_OP(op, ) __ATOMIC_OP(op, _unchecked)
+
+#define __ATOMIC_OP_RETURN(op, suffix)					\
+int atomic_##op##_return##suffix(int, atomic##suffix##_t *);		\
+long atomic64_##op##_return##suffix(long, atomic64##suffix##_t *);
+
+#define ATOMIC_OP_RETURN(op) __ATOMIC_OP_RETURN(op, ) __ATOMIC_OP_RETURN(op, _unchecked)
 
 #define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_OP_RETURN(op)
 
@@ -39,13 +59,23 @@ ATOMIC_OP(xor)
 
 #undef ATOMIC_OPS
 #undef ATOMIC_OP_RETURN
+#undef __ATOMIC_OP_RETURN
 #undef ATOMIC_OP
+#undef __ATOMIC_OP
 
 #define atomic_dec_return(v)   atomic_sub_return(1, v)
 #define atomic64_dec_return(v) atomic64_sub_return(1, v)
 
 #define atomic_inc_return(v)   atomic_add_return(1, v)
+static inline int atomic_inc_return_unchecked(atomic_unchecked_t *v)
+{
+	return atomic_add_return_unchecked(1, v);
+}
 #define atomic64_inc_return(v) atomic64_add_return(1, v)
+static inline long atomic64_inc_return_unchecked(atomic64_unchecked_t *v)
+{
+	return atomic64_add_return_unchecked(1, v);
+}
 
 /*
  * atomic_inc_and_test - increment and test
@@ -56,6 +86,10 @@ ATOMIC_OP(xor)
  * other cases.
  */
 #define atomic_inc_and_test(v) (atomic_inc_return(v) == 0)
+static inline int atomic_inc_and_test_unchecked(atomic_unchecked_t *v)
+{
+	return atomic_inc_return_unchecked(v) == 0;
+}
 #define atomic64_inc_and_test(v) (atomic64_inc_return(v) == 0)
 
 #define atomic_sub_and_test(i, v) (atomic_sub_return(i, v) == 0)
@@ -65,25 +99,60 @@ ATOMIC_OP(xor)
 #define atomic64_dec_and_test(v) (atomic64_sub_return(1, v) == 0)
 
 #define atomic_inc(v) atomic_add(1, v)
+static inline void atomic_inc_unchecked(atomic_unchecked_t *v)
+{
+	atomic_add_unchecked(1, v);
+}
 #define atomic64_inc(v) atomic64_add(1, v)
+static inline void atomic64_inc_unchecked(atomic64_unchecked_t *v)
+{
+	atomic64_add_unchecked(1, v);
+}
 
 #define atomic_dec(v) atomic_sub(1, v)
+static inline void atomic_dec_unchecked(atomic_unchecked_t *v)
+{
+	atomic_sub_unchecked(1, v);
+}
 #define atomic64_dec(v) atomic64_sub(1, v)
+static inline void atomic64_dec_unchecked(atomic64_unchecked_t *v)
+{
+	atomic64_sub_unchecked(1, v);
+}
 
 #define atomic_add_negative(i, v) (atomic_add_return(i, v) < 0)
 #define atomic64_add_negative(i, v) (atomic64_add_return(i, v) < 0)
 
 #define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n)))
+static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new)
+{
+	return cmpxchg(&v->counter, old, new);
+}
 #define atomic_xchg(v, new) (xchg(&((v)->counter), new))
+static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new)
+{
+	return xchg(&v->counter, new);
+}
 
 static inline int __atomic_add_unless(atomic_t *v, int a, int u)
 {
-	int c, old;
+	int c, old, new;
 	c = atomic_read(v);
 	for (;;) {
-		if (unlikely(c == (u)))
+		if (unlikely(c == u))
 			break;
-		old = atomic_cmpxchg((v), c, c + (a));
+
+		asm volatile("addcc %2, %0, %0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+			     "tvs %%icc, 6\n"
+#endif
+
+			     : "=r" (new)
+			     : "0" (c), "ir" (a)
+			     : "cc");
+
+		old = atomic_cmpxchg(v, c, new);
 		if (likely(old == c))
 			break;
 		c = old;
@@ -94,20 +163,40 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
 #define atomic64_cmpxchg(v, o, n) \
 	((__typeof__((v)->counter))cmpxchg(&((v)->counter), (o), (n)))
 #define atomic64_xchg(v, new) (xchg(&((v)->counter), new))
+static inline long atomic64_xchg_unchecked(atomic64_unchecked_t *v, long new)
+{
+	return xchg(&v->counter, new);
+}
+static inline long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *v, long old,
+					      long new)
+{
+	return cmpxchg(&(v->counter), old, new);
+}
 
 static inline long atomic64_add_unless(atomic64_t *v, long a, long u)
 {
-	long c, old;
+	long c, old, new;
 	c = atomic64_read(v);
 	for (;;) {
-		if (unlikely(c == (u)))
+		if (unlikely(c == u))
 			break;
-		old = atomic64_cmpxchg((v), c, c + (a));
+
+		asm volatile("addcc %2, %0, %0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+			     "tvs %%xcc, 6\n"
+#endif
+
+			     : "=r" (new)
+			     : "0" (c), "ir" (a)
+			     : "cc");
+
+		old = atomic64_cmpxchg(v, c, new);
 		if (likely(old == c))
 			break;
 		c = old;
 	}
-	return c != (u);
+	return c != u;
 }
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
diff --git a/arch/sparc/include/asm/cache.h b/arch/sparc/include/asm/cache.h
index 5bb6991..5c2132e 100644
--- a/arch/sparc/include/asm/cache.h
+++ b/arch/sparc/include/asm/cache.h
@@ -7,10 +7,12 @@
 #ifndef _SPARC_CACHE_H
 #define _SPARC_CACHE_H
 
+#include <linux/const.h>
+
 #define ARCH_SLAB_MINALIGN	__alignof__(unsigned long long)
 
 #define L1_CACHE_SHIFT 5
-#define L1_CACHE_BYTES 32
+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
 
 #ifdef CONFIG_SPARC32
 #define SMP_CACHE_BYTES_SHIFT 5
diff --git a/arch/sparc/include/asm/elf_32.h b/arch/sparc/include/asm/elf_32.h
index a24e41f..47677ff 100644
--- a/arch/sparc/include/asm/elf_32.h
+++ b/arch/sparc/include/asm/elf_32.h
@@ -114,6 +114,13 @@ typedef struct {
 
 #define ELF_ET_DYN_BASE         (TASK_UNMAPPED_BASE)
 
+#ifdef CONFIG_PAX_ASLR
+#define PAX_ELF_ET_DYN_BASE	0x10000UL
+
+#define PAX_DELTA_MMAP_LEN	16
+#define PAX_DELTA_STACK_LEN	16
+#endif
+
 /* This yields a mask that user programs can use to figure out what
    instruction set this cpu supports.  This can NOT be done in userspace
    on Sparc.  */
diff --git a/arch/sparc/include/asm/elf_64.h b/arch/sparc/include/asm/elf_64.h
index 9331083..59c0499 100644
--- a/arch/sparc/include/asm/elf_64.h
+++ b/arch/sparc/include/asm/elf_64.h
@@ -190,6 +190,13 @@ typedef struct {
 #define ELF_ET_DYN_BASE		0x0000010000000000UL
 #define COMPAT_ELF_ET_DYN_BASE	0x0000000070000000UL
 
+#ifdef CONFIG_PAX_ASLR
+#define PAX_ELF_ET_DYN_BASE	(test_thread_flag(TIF_32BIT) ? 0x10000UL : 0x100000UL)
+
+#define PAX_DELTA_MMAP_LEN	(test_thread_flag(TIF_32BIT) ? 14 : 28)
+#define PAX_DELTA_STACK_LEN	(test_thread_flag(TIF_32BIT) ? 15 : 29)
+#endif
+
 extern unsigned long sparc64_elf_hwcap;
 #define ELF_HWCAP	sparc64_elf_hwcap
 
diff --git a/arch/sparc/include/asm/pgalloc_32.h b/arch/sparc/include/asm/pgalloc_32.h
index a3890da..f6a408e 100644
--- a/arch/sparc/include/asm/pgalloc_32.h
+++ b/arch/sparc/include/asm/pgalloc_32.h
@@ -35,6 +35,7 @@ static inline void pgd_set(pgd_t * pgdp, pmd_t * pmdp)
 }
 
 #define pgd_populate(MM, PGD, PMD)      pgd_set(PGD, PMD)
+#define pgd_populate_kernel(MM, PGD, PMD)      pgd_populate((MM), (PGD), (PMD))
 
 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm,
 				   unsigned long address)
diff --git a/arch/sparc/include/asm/pgalloc_64.h b/arch/sparc/include/asm/pgalloc_64.h
index 5e31871..13469c6 100644
--- a/arch/sparc/include/asm/pgalloc_64.h
+++ b/arch/sparc/include/asm/pgalloc_64.h
@@ -21,6 +21,7 @@ static inline void __pgd_populate(pgd_t *pgd, pud_t *pud)
 }
 
 #define pgd_populate(MM, PGD, PUD)	__pgd_populate(PGD, PUD)
+#define pgd_populate_kernel(MM, PGD, PMD)	pgd_populate((MM), (PGD), (PMD))
 
 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 {
@@ -38,6 +39,7 @@ static inline void __pud_populate(pud_t *pud, pmd_t *pmd)
 }
 
 #define pud_populate(MM, PUD, PMD)	__pud_populate(PUD, PMD)
+#define pud_populate_kernel(MM, PUD, PMD)	pud_populate((MM), (PUD), (PMD))
 
 static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
 {
diff --git a/arch/sparc/include/asm/pgtable.h b/arch/sparc/include/asm/pgtable.h
index 59ba6f6..4518128 100644
--- a/arch/sparc/include/asm/pgtable.h
+++ b/arch/sparc/include/asm/pgtable.h
@@ -5,4 +5,8 @@
 #else
 #include <asm/pgtable_32.h>
 #endif
+
+#define ktla_ktva(addr)		(addr)
+#define ktva_ktla(addr)		(addr)
+
 #endif
diff --git a/arch/sparc/include/asm/pgtable_32.h b/arch/sparc/include/asm/pgtable_32.h
index 91b963a..9a806c1 100644
--- a/arch/sparc/include/asm/pgtable_32.h
+++ b/arch/sparc/include/asm/pgtable_32.h
@@ -51,6 +51,9 @@ unsigned long __init bootmem_init(unsigned long *pages_avail);
 #define PAGE_SHARED	SRMMU_PAGE_SHARED
 #define PAGE_COPY	SRMMU_PAGE_COPY
 #define PAGE_READONLY	SRMMU_PAGE_RDONLY
+#define PAGE_SHARED_NOEXEC	SRMMU_PAGE_SHARED_NOEXEC
+#define PAGE_COPY_NOEXEC	SRMMU_PAGE_COPY_NOEXEC
+#define PAGE_READONLY_NOEXEC	SRMMU_PAGE_RDONLY_NOEXEC
 #define PAGE_KERNEL	SRMMU_PAGE_KERNEL
 
 /* Top-level page directory - dummy used by init-mm.
@@ -63,18 +66,18 @@ extern unsigned long ptr_in_current_pgd;
 
 /*         xwr */
 #define __P000  PAGE_NONE
-#define __P001  PAGE_READONLY
-#define __P010  PAGE_COPY
-#define __P011  PAGE_COPY
+#define __P001  PAGE_READONLY_NOEXEC
+#define __P010  PAGE_COPY_NOEXEC
+#define __P011  PAGE_COPY_NOEXEC
 #define __P100  PAGE_READONLY
 #define __P101  PAGE_READONLY
 #define __P110  PAGE_COPY
 #define __P111  PAGE_COPY
 
 #define __S000	PAGE_NONE
-#define __S001	PAGE_READONLY
-#define __S010	PAGE_SHARED
-#define __S011	PAGE_SHARED
+#define __S001	PAGE_READONLY_NOEXEC
+#define __S010	PAGE_SHARED_NOEXEC
+#define __S011	PAGE_SHARED_NOEXEC
 #define __S100	PAGE_READONLY
 #define __S101	PAGE_READONLY
 #define __S110	PAGE_SHARED
diff --git a/arch/sparc/include/asm/pgtsrmmu.h b/arch/sparc/include/asm/pgtsrmmu.h
index ae51a11..eadfd03 100644
--- a/arch/sparc/include/asm/pgtsrmmu.h
+++ b/arch/sparc/include/asm/pgtsrmmu.h
@@ -111,6 +111,11 @@
 				    SRMMU_EXEC | SRMMU_REF)
 #define SRMMU_PAGE_RDONLY  __pgprot(SRMMU_VALID | SRMMU_CACHE | \
 				    SRMMU_EXEC | SRMMU_REF)
+
+#define SRMMU_PAGE_SHARED_NOEXEC	__pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_WRITE | SRMMU_REF)
+#define SRMMU_PAGE_COPY_NOEXEC		__pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_REF)
+#define SRMMU_PAGE_RDONLY_NOEXEC	__pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_REF)
+
 #define SRMMU_PAGE_KERNEL  __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_PRIV | \
 				    SRMMU_DIRTY | SRMMU_REF)
 
diff --git a/arch/sparc/include/asm/setup.h b/arch/sparc/include/asm/setup.h
index 29d64b1..4272fe8 100644
--- a/arch/sparc/include/asm/setup.h
+++ b/arch/sparc/include/asm/setup.h
@@ -55,8 +55,8 @@ int handle_ldf_stq(u32 insn, struct pt_regs *regs);
 void handle_ld_nf(u32 insn, struct pt_regs *regs);
 
 /* init_64.c */
-extern atomic_t dcpage_flushes;
-extern atomic_t dcpage_flushes_xcall;
+extern atomic_unchecked_t dcpage_flushes;
+extern atomic_unchecked_t dcpage_flushes_xcall;
 
 extern int sysctl_tsb_ratio;
 #endif
diff --git a/arch/sparc/include/asm/spinlock_64.h b/arch/sparc/include/asm/spinlock_64.h
index 9689176..63c18ea 100644
--- a/arch/sparc/include/asm/spinlock_64.h
+++ b/arch/sparc/include/asm/spinlock_64.h
@@ -92,14 +92,19 @@ static inline void arch_spin_lock_flags(arch_spinlock_t *lock, unsigned long fla
 
 /* Multi-reader locks, these are much saner than the 32-bit Sparc ones... */
 
-static void inline arch_read_lock(arch_rwlock_t *lock)
+static inline void arch_read_lock(arch_rwlock_t *lock)
 {
 	unsigned long tmp1, tmp2;
 
 	__asm__ __volatile__ (
 "1:	ldsw		[%2], %0\n"
 "	brlz,pn		%0, 2f\n"
-"4:	 add		%0, 1, %1\n"
+"4:	 addcc		%0, 1, %1\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"	tvs		%%icc, 6\n"
+#endif
+
 "	cas		[%2], %0, %1\n"
 "	cmp		%0, %1\n"
 "	bne,pn		%%icc, 1b\n"
@@ -112,10 +117,10 @@ static void inline arch_read_lock(arch_rwlock_t *lock)
 "	.previous"
 	: "=&r" (tmp1), "=&r" (tmp2)
 	: "r" (lock)
-	: "memory");
+	: "memory", "cc");
 }
 
-static int inline arch_read_trylock(arch_rwlock_t *lock)
+static inline int arch_read_trylock(arch_rwlock_t *lock)
 {
 	int tmp1, tmp2;
 
@@ -123,7 +128,12 @@ static int inline arch_read_trylock(arch_rwlock_t *lock)
 "1:	ldsw		[%2], %0\n"
 "	brlz,a,pn	%0, 2f\n"
 "	 mov		0, %0\n"
-"	add		%0, 1, %1\n"
+"	addcc		%0, 1, %1\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"	tvs		%%icc, 6\n"
+#endif
+
 "	cas		[%2], %0, %1\n"
 "	cmp		%0, %1\n"
 "	bne,pn		%%icc, 1b\n"
@@ -136,13 +146,18 @@ static int inline arch_read_trylock(arch_rwlock_t *lock)
 	return tmp1;
 }
 
-static void inline arch_read_unlock(arch_rwlock_t *lock)
+static inline void arch_read_unlock(arch_rwlock_t *lock)
 {
 	unsigned long tmp1, tmp2;
 
 	__asm__ __volatile__(
 "1:	lduw	[%2], %0\n"
-"	sub	%0, 1, %1\n"
+"	subcc	%0, 1, %1\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+"	tvs	%%icc, 6\n"
+#endif
+
 "	cas	[%2], %0, %1\n"
 "	cmp	%0, %1\n"
 "	bne,pn	%%xcc, 1b\n"
@@ -152,7 +167,7 @@ static void inline arch_read_unlock(arch_rwlock_t *lock)
 	: "memory");
 }
 
-static void inline arch_write_lock(arch_rwlock_t *lock)
+static inline void arch_write_lock(arch_rwlock_t *lock)
 {
 	unsigned long mask, tmp1, tmp2;
 
@@ -177,7 +192,7 @@ static void inline arch_write_lock(arch_rwlock_t *lock)
 	: "memory");
 }
 
-static void inline arch_write_unlock(arch_rwlock_t *lock)
+static inline void arch_write_unlock(arch_rwlock_t *lock)
 {
 	__asm__ __volatile__(
 "	stw		%%g0, [%0]"
@@ -186,7 +201,7 @@ static void inline arch_write_unlock(arch_rwlock_t *lock)
 	: "memory");
 }
 
-static int inline arch_write_trylock(arch_rwlock_t *lock)
+static inline int arch_write_trylock(arch_rwlock_t *lock)
 {
 	unsigned long mask, tmp1, tmp2, result;
 
diff --git a/arch/sparc/include/asm/thread_info_32.h b/arch/sparc/include/asm/thread_info_32.h
index 229475f..2fca9163 100644
--- a/arch/sparc/include/asm/thread_info_32.h
+++ b/arch/sparc/include/asm/thread_info_32.h
@@ -48,6 +48,7 @@ struct thread_info {
 	struct reg_window32	reg_window[NSWINS];	/* align for ldd! */
 	unsigned long		rwbuf_stkptrs[NSWINS];
 	unsigned long		w_saved;
+	unsigned long		lowest_stack;
 };
 
 /*
diff --git a/arch/sparc/include/asm/thread_info_64.h b/arch/sparc/include/asm/thread_info_64.h
index bde5982..9cbb56d 100644
--- a/arch/sparc/include/asm/thread_info_64.h
+++ b/arch/sparc/include/asm/thread_info_64.h
@@ -59,6 +59,8 @@ struct thread_info {
 	struct pt_regs		*kern_una_regs;
 	unsigned int		kern_una_insn;
 
+	unsigned long		lowest_stack;
+
 	unsigned long		fpregs[(7 * 256) / sizeof(unsigned long)]
 		__attribute__ ((aligned(64)));
 };
@@ -180,12 +182,13 @@ register struct thread_info *current_thread_info_reg asm("g6");
 #define TIF_NEED_RESCHED	3	/* rescheduling necessary */
 /* flag bit 4 is available */
 #define TIF_UNALIGNED		5	/* allowed to do unaligned accesses */
-/* flag bit 6 is available */
+#define TIF_GRSEC_SETXID	6	/* update credentials on syscall entry/exit */
 #define TIF_32BIT		7	/* 32-bit binary */
 #define TIF_NOHZ		8	/* in adaptive nohz mode */
 #define TIF_SECCOMP		9	/* secure computing */
 #define TIF_SYSCALL_AUDIT	10	/* syscall auditing active */
 #define TIF_SYSCALL_TRACEPOINT	11	/* syscall tracepoint instrumentation */
+
 /* NOTE: Thread flags >= 12 should be ones we have no interest
  *       in using in assembly, else we can't use the mask as
  *       an immediate value in instructions such as andcc.
@@ -205,12 +208,17 @@ register struct thread_info *current_thread_info_reg asm("g6");
 #define _TIF_SYSCALL_AUDIT	(1<<TIF_SYSCALL_AUDIT)
 #define _TIF_SYSCALL_TRACEPOINT	(1<<TIF_SYSCALL_TRACEPOINT)
 #define _TIF_POLLING_NRFLAG	(1<<TIF_POLLING_NRFLAG)
+#define _TIF_GRSEC_SETXID	(1<<TIF_GRSEC_SETXID)
 
 #define _TIF_USER_WORK_MASK	((0xff << TI_FLAG_WSAVED_SHIFT) | \
 				 _TIF_DO_NOTIFY_RESUME_MASK | \
 				 _TIF_NEED_RESCHED)
 #define _TIF_DO_NOTIFY_RESUME_MASK	(_TIF_NOTIFY_RESUME | _TIF_SIGPENDING)
 
+#define _TIF_WORK_SYSCALL		\
+	(_TIF_SYSCALL_TRACE | _TIF_SECCOMP | _TIF_SYSCALL_AUDIT | \
+	 _TIF_SYSCALL_TRACEPOINT | _TIF_NOHZ | _TIF_GRSEC_SETXID)
+
 #define is_32bit_task()	(test_thread_flag(TIF_32BIT))
 
 /*
diff --git a/arch/sparc/include/asm/uaccess.h b/arch/sparc/include/asm/uaccess.h
index bd56c28..4b63d83 100644
--- a/arch/sparc/include/asm/uaccess.h
+++ b/arch/sparc/include/asm/uaccess.h
@@ -1,5 +1,6 @@
 #ifndef ___ASM_SPARC_UACCESS_H
 #define ___ASM_SPARC_UACCESS_H
+
 #if defined(__sparc__) && defined(__arch64__)
 #include <asm/uaccess_64.h>
 #else
diff --git a/arch/sparc/include/asm/uaccess_32.h b/arch/sparc/include/asm/uaccess_32.h
index 57aca27..a87e6eb 100644
--- a/arch/sparc/include/asm/uaccess_32.h
+++ b/arch/sparc/include/asm/uaccess_32.h
@@ -47,6 +47,7 @@
 #define __user_ok(addr, size) ({ (void)(size); (addr) < STACK_TOP; })
 #define __kernel_ok (segment_eq(get_fs(), KERNEL_DS))
 #define __access_ok(addr, size) (__user_ok((addr) & get_fs().seg, (size)))
+#define access_ok_noprefault(type, addr, size) access_ok((type), (addr), (size))
 #define access_ok(type, addr, size) \
 	({ (void)(type); __access_ok((unsigned long)(addr), size); })
 
@@ -248,27 +249,46 @@ unsigned long __copy_user(void __user *to, const void __user *from, unsigned lon
 
 static inline unsigned long copy_to_user(void __user *to, const void *from, unsigned long n)
 {
-	if (n && __access_ok((unsigned long) to, n))
+	if ((long)n < 0)
+		return n;
+
+	if (n && __access_ok((unsigned long) to, n)) {
+		if (!__builtin_constant_p(n))
+			check_object_size(from, n, true);
 		return __copy_user(to, (__force void __user *) from, n);
-	else
+	} else
 		return n;
 }
 
 static inline unsigned long __copy_to_user(void __user *to, const void *from, unsigned long n)
 {
+	if ((long)n < 0)
+		return n;
+
+	if (!__builtin_constant_p(n))
+		check_object_size(from, n, true);
+
 	return __copy_user(to, (__force void __user *) from, n);
 }
 
 static inline unsigned long copy_from_user(void *to, const void __user *from, unsigned long n)
 {
-	if (n && __access_ok((unsigned long) from, n))
+	if ((long)n < 0)
+		return n;
+
+	if (n && __access_ok((unsigned long) from, n)) {
+		if (!__builtin_constant_p(n))
+			check_object_size(to, n, false);
 		return __copy_user((__force void __user *) to, from, n);
-	else
+	} else
 		return n;
 }
 
 static inline unsigned long __copy_from_user(void *to, const void __user *from, unsigned long n)
 {
+	if ((long)n < 0)
+		return n;
+
 	return __copy_user((__force void __user *) to, from, n);
 }
 
diff --git a/arch/sparc/include/asm/uaccess_64.h b/arch/sparc/include/asm/uaccess_64.h
index e9a51d6..3ef910c 100644
--- a/arch/sparc/include/asm/uaccess_64.h
+++ b/arch/sparc/include/asm/uaccess_64.h
@@ -10,6 +10,7 @@
 #include <linux/compiler.h>
 #include <linux/string.h>
 #include <linux/thread_info.h>
+#include <linux/kernel.h>
 #include <asm/asi.h>
 #include <asm/spitfire.h>
 #include <asm-generic/uaccess-unaligned.h>
@@ -76,6 +77,11 @@ static inline int __access_ok(const void __user * addr, unsigned long size)
 	return 1;
 }
 
+static inline int access_ok_noprefault(int type, const void __user * addr, unsigned long size)
+{
+	return 1;
+}
+
 static inline int access_ok(int type, const void __user * addr, unsigned long size)
 {
 	return 1;
@@ -210,8 +216,15 @@ unsigned long copy_from_user_fixup(void *to, const void __user *from,
 static inline unsigned long __must_check
 copy_from_user(void *to, const void __user *from, unsigned long size)
 {
-	unsigned long ret = ___copy_from_user(to, from, size);
+	unsigned long ret;
 
+	if ((long)size < 0 || size > INT_MAX)
+		return size;
+
+	if (!__builtin_constant_p(size))
+		check_object_size(to, size, false);
+
+	ret = ___copy_from_user(to, from, size);
 	if (unlikely(ret))
 		ret = copy_from_user_fixup(to, from, size);
 
@@ -227,8 +240,15 @@ unsigned long copy_to_user_fixup(void __user *to, const void *from,
 static inline unsigned long __must_check
 copy_to_user(void __user *to, const void *from, unsigned long size)
 {
-	unsigned long ret = ___copy_to_user(to, from, size);
+	unsigned long ret;
 
+	if ((long)size < 0 || size > INT_MAX)
+		return size;
+
+	if (!__builtin_constant_p(size))
+		check_object_size(from, size, true);
+
+	ret = ___copy_to_user(to, from, size);
 	if (unlikely(ret))
 		ret = copy_to_user_fixup(to, from, size);
 	return ret;
diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
index fdb1332..1b10f89 100644
--- a/arch/sparc/kernel/Makefile
+++ b/arch/sparc/kernel/Makefile
@@ -4,7 +4,7 @@
 #
 
 asflags-y := -ansi
-ccflags-y := -Werror
+#ccflags-y := -Werror
 
 extra-y     := head_$(BITS).o
 
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index c5113c7..52322e4 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -123,14 +123,14 @@ void show_regs(struct pt_regs *r)
 
         printk("PSR: %08lx PC: %08lx NPC: %08lx Y: %08lx    %s\n",
 	       r->psr, r->pc, r->npc, r->y, print_tainted());
-	printk("PC: <%pS>\n", (void *) r->pc);
+	printk("PC: <%pA>\n", (void *) r->pc);
 	printk("%%G: %08lx %08lx  %08lx %08lx  %08lx %08lx  %08lx %08lx\n",
 	       r->u_regs[0], r->u_regs[1], r->u_regs[2], r->u_regs[3],
 	       r->u_regs[4], r->u_regs[5], r->u_regs[6], r->u_regs[7]);
 	printk("%%O: %08lx %08lx  %08lx %08lx  %08lx %08lx  %08lx %08lx\n",
 	       r->u_regs[8], r->u_regs[9], r->u_regs[10], r->u_regs[11],
 	       r->u_regs[12], r->u_regs[13], r->u_regs[14], r->u_regs[15]);
-	printk("RPC: <%pS>\n", (void *) r->u_regs[15]);
+	printk("RPC: <%pA>\n", (void *) r->u_regs[15]);
 
 	printk("%%L: %08lx %08lx  %08lx %08lx  %08lx %08lx  %08lx %08lx\n",
 	       rw->locals[0], rw->locals[1], rw->locals[2], rw->locals[3],
@@ -167,7 +167,7 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
 		rw = (struct reg_window32 *) fp;
 		pc = rw->ins[7];
 		printk("[%08lx : ", pc);
-		printk("%pS ] ", (void *) pc);
+		printk("%pA ] ", (void *) pc);
 		fp = rw->ins[6];
 	} while (++count < 16);
 	printk("\n");
diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
index c16ef1a..8b38d7b 100644
--- a/arch/sparc/kernel/process_64.c
+++ b/arch/sparc/kernel/process_64.c
@@ -161,7 +161,7 @@ static void show_regwindow(struct pt_regs *regs)
 	printk("i4: %016lx i5: %016lx i6: %016lx i7: %016lx\n",
 	       rwk->ins[4], rwk->ins[5], rwk->ins[6], rwk->ins[7]);
 	if (regs->tstate & TSTATE_PRIV)
-		printk("I7: <%pS>\n", (void *) rwk->ins[7]);
+		printk("I7: <%pA>\n", (void *) rwk->ins[7]);
 }
 
 void show_regs(struct pt_regs *regs)
@@ -170,7 +170,7 @@ void show_regs(struct pt_regs *regs)
 
 	printk("TSTATE: %016lx TPC: %016lx TNPC: %016lx Y: %08x    %s\n", regs->tstate,
 	       regs->tpc, regs->tnpc, regs->y, print_tainted());
-	printk("TPC: <%pS>\n", (void *) regs->tpc);
+	printk("TPC: <%pA>\n", (void *) regs->tpc);
 	printk("g0: %016lx g1: %016lx g2: %016lx g3: %016lx\n",
 	       regs->u_regs[0], regs->u_regs[1], regs->u_regs[2],
 	       regs->u_regs[3]);
@@ -183,7 +183,7 @@ void show_regs(struct pt_regs *regs)
 	printk("o4: %016lx o5: %016lx sp: %016lx ret_pc: %016lx\n",
 	       regs->u_regs[12], regs->u_regs[13], regs->u_regs[14],
 	       regs->u_regs[15]);
-	printk("RPC: <%pS>\n", (void *) regs->u_regs[15]);
+	printk("RPC: <%pA>\n", (void *) regs->u_regs[15]);
 	show_regwindow(regs);
 	show_stack(current, (unsigned long *) regs->u_regs[UREG_FP]);
 }
@@ -278,7 +278,7 @@ void arch_trigger_all_cpu_backtrace(bool include_self)
 		       ((tp && tp->task) ? tp->task->pid : -1));
 
 		if (gp->tstate & TSTATE_PRIV) {
-			printk("             TPC[%pS] O7[%pS] I7[%pS] RPC[%pS]\n",
+			printk("             TPC[%pA] O7[%pA] I7[%pA] RPC[%pA]\n",
 			       (void *) gp->tpc,
 			       (void *) gp->o7,
 			       (void *) gp->i7,
diff --git a/arch/sparc/kernel/prom_common.c b/arch/sparc/kernel/prom_common.c
index 79cc0d1..ec62734 100644
--- a/arch/sparc/kernel/prom_common.c
+++ b/arch/sparc/kernel/prom_common.c
@@ -144,7 +144,7 @@ static int __init prom_common_nextprop(phandle node, char *prev, char *buf)
 
 unsigned int prom_early_allocated __initdata;
 
-static struct of_pdt_ops prom_sparc_ops __initdata = {
+static struct of_pdt_ops prom_sparc_ops __initconst = {
 	.nextprop = prom_common_nextprop,
 	.getproplen = prom_getproplen,
 	.getproperty = prom_getproperty,
diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c
index 9ddc492..27a5619 100644
--- a/arch/sparc/kernel/ptrace_64.c
+++ b/arch/sparc/kernel/ptrace_64.c
@@ -1060,6 +1060,10 @@ long arch_ptrace(struct task_struct *child, long request,
 	return ret;
 }
 
+#ifdef CONFIG_GRKERNSEC_SETXID
+extern void gr_delayed_cred_worker(void);
+#endif
+
 asmlinkage int syscall_trace_enter(struct pt_regs *regs)
 {
 	int ret = 0;
@@ -1070,6 +1074,11 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs)
 	if (test_thread_flag(TIF_NOHZ))
 		user_exit();
 
+#ifdef CONFIG_GRKERNSEC_SETXID
+	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
+		gr_delayed_cred_worker();
+#endif
+
 	if (test_thread_flag(TIF_SYSCALL_TRACE))
 		ret = tracehook_report_syscall_entry(regs);
 
@@ -1088,6 +1097,11 @@ asmlinkage void syscall_trace_leave(struct pt_regs *regs)
 	if (test_thread_flag(TIF_NOHZ))
 		user_exit();
 
+#ifdef CONFIG_GRKERNSEC_SETXID
+	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
+		gr_delayed_cred_worker();
+#endif
+
 	audit_syscall_exit(regs);
 
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index 8a6151a..fa3cbb1 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -891,7 +891,7 @@ void smp_flush_dcache_page_impl(struct page *page, int cpu)
 		return;
 
 #ifdef CONFIG_DEBUG_DCFLUSH
-	atomic_inc(&dcpage_flushes);
+	atomic_inc_unchecked(&dcpage_flushes);
 #endif
 
 	this_cpu = get_cpu();
@@ -915,7 +915,7 @@ void smp_flush_dcache_page_impl(struct page *page, int cpu)
 			xcall_deliver(data0, __pa(pg_addr),
 				      (u64) pg_addr, cpumask_of(cpu));
 #ifdef CONFIG_DEBUG_DCFLUSH
-			atomic_inc(&dcpage_flushes_xcall);
+			atomic_inc_unchecked(&dcpage_flushes_xcall);
 #endif
 		}
 	}
@@ -934,7 +934,7 @@ void flush_dcache_page_all(struct mm_struct *mm, struct page *page)
 	preempt_disable();
 
 #ifdef CONFIG_DEBUG_DCFLUSH
-	atomic_inc(&dcpage_flushes);
+	atomic_inc_unchecked(&dcpage_flushes);
 #endif
 	data0 = 0;
 	pg_addr = page_address(page);
@@ -951,7 +951,7 @@ void flush_dcache_page_all(struct mm_struct *mm, struct page *page)
 		xcall_deliver(data0, __pa(pg_addr),
 			      (u64) pg_addr, cpu_online_mask);
 #ifdef CONFIG_DEBUG_DCFLUSH
-		atomic_inc(&dcpage_flushes_xcall);
+		atomic_inc_unchecked(&dcpage_flushes_xcall);
 #endif
 	}
 	__local_flush_dcache_page(page);
diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
index 646988d..b88905f 100644
--- a/arch/sparc/kernel/sys_sparc_32.c
+++ b/arch/sparc/kernel/sys_sparc_32.c
@@ -54,7 +54,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 	if (len > TASK_SIZE - PAGE_SIZE)
 		return -ENOMEM;
 	if (!addr)
-		addr = TASK_UNMAPPED_BASE;
+		addr = current->mm->mmap_base;
 
 	info.flags = 0;
 	info.length = len;
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index fe8b8ee..3f17a96 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -89,13 +89,14 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 	struct vm_area_struct * vma;
 	unsigned long task_size = TASK_SIZE;
 	int do_color_align;
+	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
 	struct vm_unmapped_area_info info;
 
 	if (flags & MAP_FIXED) {
 		/* We do not accept a shared mapping if it would violate
 		 * cache aliasing constraints.
 		 */
-		if ((flags & MAP_SHARED) &&
+		if ((filp || (flags & MAP_SHARED)) &&
 		    ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1)))
 			return -EINVAL;
 		return addr;
@@ -110,6 +111,10 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 	if (filp || (flags & MAP_SHARED))
 		do_color_align = 1;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (addr) {
 		if (do_color_align)
 			addr = COLOR_ALIGN(addr, pgoff);
@@ -117,22 +122,28 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 			addr = PAGE_ALIGN(addr);
 
 		vma = find_vma(mm, addr);
-		if (task_size - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
 			return addr;
 	}
 
 	info.flags = 0;
 	info.length = len;
-	info.low_limit = TASK_UNMAPPED_BASE;
+	info.low_limit = mm->mmap_base;
 	info.high_limit = min(task_size, VA_EXCLUDE_START);
 	info.align_mask = do_color_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
 	info.align_offset = pgoff << PAGE_SHIFT;
+	info.threadstack_offset = offset;
 	addr = vm_unmapped_area(&info);
 
 	if ((addr & ~PAGE_MASK) && task_size > VA_EXCLUDE_END) {
 		VM_BUG_ON(addr != -ENOMEM);
 		info.low_limit = VA_EXCLUDE_END;
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			info.low_limit += mm->delta_mmap;
+#endif
+
 		info.high_limit = task_size;
 		addr = vm_unmapped_area(&info);
 	}
@@ -141,15 +152,16 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 }
 
 unsigned long
-arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
-			  const unsigned long len, const unsigned long pgoff,
-			  const unsigned long flags)
+arch_get_unmapped_area_topdown(struct file *filp, unsigned long addr0,
+			  unsigned long len, unsigned long pgoff,
+			  unsigned long flags)
 {
 	struct vm_area_struct *vma;
 	struct mm_struct *mm = current->mm;
 	unsigned long task_size = STACK_TOP32;
 	unsigned long addr = addr0;
 	int do_color_align;
+	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
 	struct vm_unmapped_area_info info;
 
 	/* This should only ever run for 32-bit processes.  */
@@ -159,7 +171,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 		/* We do not accept a shared mapping if it would violate
 		 * cache aliasing constraints.
 		 */
-		if ((flags & MAP_SHARED) &&
+		if ((filp || (flags & MAP_SHARED)) &&
 		    ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1)))
 			return -EINVAL;
 		return addr;
@@ -172,6 +184,10 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	if (filp || (flags & MAP_SHARED))
 		do_color_align = 1;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	/* requesting a specific address */
 	if (addr) {
 		if (do_color_align)
@@ -180,8 +196,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 			addr = PAGE_ALIGN(addr);
 
 		vma = find_vma(mm, addr);
-		if (task_size - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
 			return addr;
 	}
 
@@ -191,6 +206,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	info.high_limit = mm->mmap_base;
 	info.align_mask = do_color_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
 	info.align_offset = pgoff << PAGE_SHIFT;
+	info.threadstack_offset = offset;
 	addr = vm_unmapped_area(&info);
 
 	/*
@@ -203,6 +219,12 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 		VM_BUG_ON(addr != -ENOMEM);
 		info.flags = 0;
 		info.low_limit = TASK_UNMAPPED_BASE;
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			info.low_limit += mm->delta_mmap;
+#endif
+
 		info.high_limit = STACK_TOP32;
 		addr = vm_unmapped_area(&info);
 	}
@@ -259,10 +281,14 @@ unsigned long get_fb_unmapped_area(struct file *filp, unsigned long orig_addr, u
 EXPORT_SYMBOL(get_fb_unmapped_area);
 
 /* Essentially the same as PowerPC.  */
-static unsigned long mmap_rnd(void)
+static unsigned long mmap_rnd(struct mm_struct *mm)
 {
 	unsigned long rnd = 0UL;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (current->flags & PF_RANDOMIZE) {
 		unsigned long val = get_random_long();
 		if (test_thread_flag(TIF_32BIT))
@@ -275,7 +301,7 @@ static unsigned long mmap_rnd(void)
 
 void arch_pick_mmap_layout(struct mm_struct *mm)
 {
-	unsigned long random_factor = mmap_rnd();
+	unsigned long random_factor = mmap_rnd(mm);
 	unsigned long gap;
 
 	/*
@@ -288,6 +314,12 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	    gap == RLIM_INFINITY ||
 	    sysctl_legacy_va_layout) {
 		mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			mm->mmap_base += mm->delta_mmap;
+#endif
+
 		mm->get_unmapped_area = arch_get_unmapped_area;
 	} else {
 		/* We know it's 32-bit */
@@ -299,6 +331,12 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 			gap = (task_size / 6 * 5);
 
 		mm->mmap_base = PAGE_ALIGN(task_size - gap - random_factor);
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
+#endif
+
 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
 	}
 }
diff --git a/arch/sparc/kernel/syscalls.S b/arch/sparc/kernel/syscalls.S
index c4a1b5c..c5e0ef3 100644
--- a/arch/sparc/kernel/syscalls.S
+++ b/arch/sparc/kernel/syscalls.S
@@ -62,7 +62,7 @@ sys32_rt_sigreturn:
 #endif
 	.align	32
 1:	ldx	[%g6 + TI_FLAGS], %l5
-	andcc	%l5, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT|_TIF_NOHZ), %g0
+	andcc	%l5, _TIF_WORK_SYSCALL, %g0
 	be,pt	%icc, rtrap
 	 nop
 	call	syscall_trace_leave
@@ -230,7 +230,7 @@ linux_sparc_syscall32:
 
 	srl	%i3, 0, %o3				! IEU0
 	srl	%i2, 0, %o2				! IEU0	Group
-	andcc	%l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT|_TIF_NOHZ), %g0
+	andcc	%l0, _TIF_WORK_SYSCALL, %g0
 	bne,pn	%icc, linux_syscall_trace32		! CTI
 	 mov	%i0, %l5				! IEU1
 5:	call	%l7					! CTI	Group brk forced
@@ -254,7 +254,7 @@ linux_sparc_syscall:
 
 	mov	%i3, %o3				! IEU1
 	mov	%i4, %o4				! IEU0	Group
-	andcc	%l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT|_TIF_NOHZ), %g0
+	andcc	%l0, _TIF_WORK_SYSCALL, %g0
 	bne,pn	%icc, linux_syscall_trace		! CTI	Group
 	 mov	%i0, %l5				! IEU0
 2:	call	%l7					! CTI	Group brk forced
@@ -269,7 +269,7 @@ ret_sys_call:
 
 	cmp	%o0, -ERESTART_RESTARTBLOCK
 	bgeu,pn	%xcc, 1f
-	 andcc	%l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT|_TIF_NOHZ), %g0
+	 andcc	%l0, _TIF_WORK_SYSCALL, %g0
 	ldx	[%sp + PTREGS_OFF + PT_V9_TNPC], %l1 ! pc = npc
 
 2:
diff --git a/arch/sparc/kernel/traps_32.c b/arch/sparc/kernel/traps_32.c
index 4f21df7..0a374da 100644
--- a/arch/sparc/kernel/traps_32.c
+++ b/arch/sparc/kernel/traps_32.c
@@ -44,6 +44,8 @@ static void instruction_dump(unsigned long *pc)
 #define __SAVE __asm__ __volatile__("save %sp, -0x40, %sp\n\t")
 #define __RESTORE __asm__ __volatile__("restore %g0, %g0, %g0\n\t")
 
+extern void gr_handle_kernel_exploit(void);
+
 void __noreturn die_if_kernel(char *str, struct pt_regs *regs)
 {
 	static int die_counter;
@@ -76,15 +78,17 @@ void __noreturn die_if_kernel(char *str, struct pt_regs *regs)
 		      count++ < 30				&&
                       (((unsigned long) rw) >= PAGE_OFFSET)	&&
 		      !(((unsigned long) rw) & 0x7)) {
-			printk("Caller[%08lx]: %pS\n", rw->ins[7],
+			printk("Caller[%08lx]: %pA\n", rw->ins[7],
 			       (void *) rw->ins[7]);
 			rw = (struct reg_window32 *)rw->ins[6];
 		}
 	}
 	printk("Instruction DUMP:");
 	instruction_dump ((unsigned long *) regs->pc);
-	if(regs->psr & PSR_PS)
+	if(regs->psr & PSR_PS) {
+		gr_handle_kernel_exploit();
 		do_exit(SIGKILL);
+	}
 	do_exit(SIGSEGV);
 }
 
diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c
index d21cd62..00a4a17 100644
--- a/arch/sparc/kernel/traps_64.c
+++ b/arch/sparc/kernel/traps_64.c
@@ -79,7 +79,7 @@ static void dump_tl1_traplog(struct tl1_traplog *p)
 		       i + 1,
 		       p->trapstack[i].tstate, p->trapstack[i].tpc,
 		       p->trapstack[i].tnpc, p->trapstack[i].tt);
-		printk("TRAPLOG: TPC<%pS>\n", (void *) p->trapstack[i].tpc);
+		printk("TRAPLOG: TPC<%pA>\n", (void *) p->trapstack[i].tpc);
 	}
 }
 
@@ -99,6 +99,12 @@ void bad_trap(struct pt_regs *regs, long lvl)
 
 	lvl -= 0x100;
 	if (regs->tstate & TSTATE_PRIV) {
+
+#ifdef CONFIG_PAX_REFCOUNT
+		if (lvl == 6)
+			pax_report_refcount_overflow(regs);
+#endif
+
 		sprintf(buffer, "Kernel bad sw trap %lx", lvl);
 		die_if_kernel(buffer, regs);
 	}
@@ -117,11 +123,16 @@ void bad_trap(struct pt_regs *regs, long lvl)
 void bad_trap_tl1(struct pt_regs *regs, long lvl)
 {
 	char buffer[32];
-	
+
 	if (notify_die(DIE_TRAP_TL1, "bad trap tl1", regs,
 		       0, lvl, SIGTRAP) == NOTIFY_STOP)
 		return;
 
+#ifdef CONFIG_PAX_REFCOUNT
+	if (lvl == 6)
+		pax_report_refcount_overflow(regs);
+#endif
+
 	dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
 
 	sprintf (buffer, "Bad trap %lx at tl>0", lvl);
@@ -1151,7 +1162,7 @@ static void cheetah_log_errors(struct pt_regs *regs, struct cheetah_err_info *in
 	       regs->tpc, regs->tnpc, regs->u_regs[UREG_I7], regs->tstate);
 	printk("%s" "ERROR(%d): ",
 	       (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id());
-	printk("TPC<%pS>\n", (void *) regs->tpc);
+	printk("TPC<%pA>\n", (void *) regs->tpc);
 	printk("%s" "ERROR(%d): M_SYND(%lx),  E_SYND(%lx)%s%s\n",
 	       (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(),
 	       (afsr & CHAFSR_M_SYNDROME) >> CHAFSR_M_SYNDROME_SHIFT,
@@ -1758,7 +1769,7 @@ void cheetah_plus_parity_error(int type, struct pt_regs *regs)
 		       smp_processor_id(),
 		       (type & 0x1) ? 'I' : 'D',
 		       regs->tpc);
-		printk(KERN_EMERG "TPC<%pS>\n", (void *) regs->tpc);
+		printk(KERN_EMERG "TPC<%pA>\n", (void *) regs->tpc);
 		panic("Irrecoverable Cheetah+ parity error.");
 	}
 
@@ -1766,7 +1777,7 @@ void cheetah_plus_parity_error(int type, struct pt_regs *regs)
 	       smp_processor_id(),
 	       (type & 0x1) ? 'I' : 'D',
 	       regs->tpc);
-	printk(KERN_WARNING "TPC<%pS>\n", (void *) regs->tpc);
+	printk(KERN_WARNING "TPC<%pA>\n", (void *) regs->tpc);
 }
 
 struct sun4v_error_entry {
@@ -1839,8 +1850,8 @@ struct sun4v_error_entry {
 /*0x38*/u64		reserved_5;
 };
 
-static atomic_t sun4v_resum_oflow_cnt = ATOMIC_INIT(0);
-static atomic_t sun4v_nonresum_oflow_cnt = ATOMIC_INIT(0);
+static atomic_unchecked_t sun4v_resum_oflow_cnt = ATOMIC_INIT(0);
+static atomic_unchecked_t sun4v_nonresum_oflow_cnt = ATOMIC_INIT(0);
 
 static const char *sun4v_err_type_to_str(u8 type)
 {
@@ -1932,7 +1943,7 @@ static void sun4v_report_real_raddr(const char *pfx, struct pt_regs *regs)
 }
 
 static void sun4v_log_error(struct pt_regs *regs, struct sun4v_error_entry *ent,
-			    int cpu, const char *pfx, atomic_t *ocnt)
+			    int cpu, const char *pfx, atomic_unchecked_t *ocnt)
 {
 	u64 *raw_ptr = (u64 *) ent;
 	u32 attrs;
@@ -1990,8 +2001,8 @@ static void sun4v_log_error(struct pt_regs *regs, struct sun4v_error_entry *ent,
 
 	show_regs(regs);
 
-	if ((cnt = atomic_read(ocnt)) != 0) {
-		atomic_set(ocnt, 0);
+	if ((cnt = atomic_read_unchecked(ocnt)) != 0) {
+		atomic_set_unchecked(ocnt, 0);
 		wmb();
 		printk("%s: Queue overflowed %d times.\n",
 		       pfx, cnt);
@@ -2048,7 +2059,7 @@ out:
  */
 void sun4v_resum_overflow(struct pt_regs *regs)
 {
-	atomic_inc(&sun4v_resum_oflow_cnt);
+	atomic_inc_unchecked(&sun4v_resum_oflow_cnt);
 }
 
 /* We run with %pil set to PIL_NORMAL_MAX and PSTATE_IE enabled in %pstate.
@@ -2101,7 +2112,7 @@ void sun4v_nonresum_overflow(struct pt_regs *regs)
 	/* XXX Actually even this can make not that much sense.  Perhaps
 	 * XXX we should just pull the plug and panic directly from here?
 	 */
-	atomic_inc(&sun4v_nonresum_oflow_cnt);
+	atomic_inc_unchecked(&sun4v_nonresum_oflow_cnt);
 }
 
 static void sun4v_tlb_error(struct pt_regs *regs)
@@ -2120,9 +2131,9 @@ void sun4v_itlb_error_report(struct pt_regs *regs, int tl)
 
 	printk(KERN_EMERG "SUN4V-ITLB: Error at TPC[%lx], tl %d\n",
 	       regs->tpc, tl);
-	printk(KERN_EMERG "SUN4V-ITLB: TPC<%pS>\n", (void *) regs->tpc);
+	printk(KERN_EMERG "SUN4V-ITLB: TPC<%pA>\n", (void *) regs->tpc);
 	printk(KERN_EMERG "SUN4V-ITLB: O7[%lx]\n", regs->u_regs[UREG_I7]);
-	printk(KERN_EMERG "SUN4V-ITLB: O7<%pS>\n",
+	printk(KERN_EMERG "SUN4V-ITLB: O7<%pA>\n",
 	       (void *) regs->u_regs[UREG_I7]);
 	printk(KERN_EMERG "SUN4V-ITLB: vaddr[%lx] ctx[%lx] "
 	       "pte[%lx] error[%lx]\n",
@@ -2143,9 +2154,9 @@ void sun4v_dtlb_error_report(struct pt_regs *regs, int tl)
 
 	printk(KERN_EMERG "SUN4V-DTLB: Error at TPC[%lx], tl %d\n",
 	       regs->tpc, tl);
-	printk(KERN_EMERG "SUN4V-DTLB: TPC<%pS>\n", (void *) regs->tpc);
+	printk(KERN_EMERG "SUN4V-DTLB: TPC<%pA>\n", (void *) regs->tpc);
 	printk(KERN_EMERG "SUN4V-DTLB: O7[%lx]\n", regs->u_regs[UREG_I7]);
-	printk(KERN_EMERG "SUN4V-DTLB: O7<%pS>\n",
+	printk(KERN_EMERG "SUN4V-DTLB: O7<%pA>\n",
 	       (void *) regs->u_regs[UREG_I7]);
 	printk(KERN_EMERG "SUN4V-DTLB: vaddr[%lx] ctx[%lx] "
 	       "pte[%lx] error[%lx]\n",
@@ -2362,13 +2373,13 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
 			fp = (unsigned long)sf->fp + STACK_BIAS;
 		}
 
-		printk(" [%016lx] %pS\n", pc, (void *) pc);
+		printk(" [%016lx] %pA\n", pc, (void *) pc);
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
 		if ((pc + 8UL) == (unsigned long) &return_to_handler) {
 			int index = tsk->curr_ret_stack;
 			if (tsk->ret_stack && index >= graph) {
 				pc = tsk->ret_stack[index - graph].ret;
-				printk(" [%016lx] %pS\n", pc, (void *) pc);
+				printk(" [%016lx] %pA\n", pc, (void *) pc);
 				graph++;
 			}
 		}
@@ -2386,6 +2397,8 @@ static inline struct reg_window *kernel_stack_up(struct reg_window *rw)
 	return (struct reg_window *) (fp + STACK_BIAS);
 }
 
+extern void gr_handle_kernel_exploit(void);
+
 void __noreturn die_if_kernel(char *str, struct pt_regs *regs)
 {
 	static int die_counter;
@@ -2414,7 +2427,7 @@ void __noreturn die_if_kernel(char *str, struct pt_regs *regs)
 		while (rw &&
 		       count++ < 30 &&
 		       kstack_valid(tp, (unsigned long) rw)) {
-			printk("Caller[%016lx]: %pS\n", rw->ins[7],
+			printk("Caller[%016lx]: %pA\n", rw->ins[7],
 			       (void *) rw->ins[7]);
 
 			rw = kernel_stack_up(rw);
@@ -2429,8 +2442,10 @@ void __noreturn die_if_kernel(char *str, struct pt_regs *regs)
 	}
 	if (panic_on_oops)
 		panic("Fatal exception");
-	if (regs->tstate & TSTATE_PRIV)
+	if (regs->tstate & TSTATE_PRIV) {
+		gr_handle_kernel_exploit();
 		do_exit(SIGKILL);
+	}
 	do_exit(SIGSEGV);
 }
 EXPORT_SYMBOL(die_if_kernel);
diff --git a/arch/sparc/kernel/unaligned_64.c b/arch/sparc/kernel/unaligned_64.c
index 9aacb91..6415c82 100644
--- a/arch/sparc/kernel/unaligned_64.c
+++ b/arch/sparc/kernel/unaligned_64.c
@@ -297,7 +297,7 @@ static void log_unaligned(struct pt_regs *regs)
 	static DEFINE_RATELIMIT_STATE(ratelimit, 5 * HZ, 5);
 
 	if (__ratelimit(&ratelimit)) {
-		printk("Kernel unaligned access at TPC[%lx] %pS\n",
+		printk("Kernel unaligned access at TPC[%lx] %pA\n",
 		       regs->tpc, (void *) regs->tpc);
 	}
 }
diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile
index 3269b02..64f5231 100644
--- a/arch/sparc/lib/Makefile
+++ b/arch/sparc/lib/Makefile
@@ -2,7 +2,7 @@
 #
 
 asflags-y := -ansi -DST_DIV0=0x02
-ccflags-y := -Werror
+#ccflags-y := -Werror
 
 lib-$(CONFIG_SPARC32) += ashrdi3.o
 lib-$(CONFIG_SPARC32) += memcpy.o memset.o
diff --git a/arch/sparc/lib/atomic_64.S b/arch/sparc/lib/atomic_64.S
index d6b0363..7fe8079 100644
--- a/arch/sparc/lib/atomic_64.S
+++ b/arch/sparc/lib/atomic_64.S
@@ -15,11 +15,22 @@
 	 * a value and does the barriers.
 	 */
 
-#define ATOMIC_OP(op)							\
-ENTRY(atomic_##op) /* %o0 = increment, %o1 = atomic_ptr */		\
+#ifdef CONFIG_PAX_REFCOUNT
+#define __REFCOUNT_OP(op) op##cc
+#define __OVERFLOW_IOP tvs	%icc, 6;
+#define __OVERFLOW_XOP tvs	%xcc, 6;
+#else
+#define __REFCOUNT_OP(op) op
+#define __OVERFLOW_IOP
+#define __OVERFLOW_XOP
+#endif
+
+#define __ATOMIC_OP(op, suffix, asm_op, post_op)			\
+ENTRY(atomic_##op##suffix) /* %o0 = increment, %o1 = atomic_ptr */	\
 	BACKOFF_SETUP(%o2);						\
 1:	lduw	[%o1], %g1;						\
-	op	%g1, %o0, %g7;						\
+	asm_op	%g1, %o0, %g7;						\
+	post_op								\
 	cas	[%o1], %g1, %g7;					\
 	cmp	%g1, %g7;						\
 	bne,pn	%icc, BACKOFF_LABEL(2f, 1b);				\
@@ -29,11 +40,15 @@ ENTRY(atomic_##op) /* %o0 = increment, %o1 = atomic_ptr */		\
 2:	BACKOFF_SPIN(%o2, %o3, 1b);					\
 ENDPROC(atomic_##op);							\
 
-#define ATOMIC_OP_RETURN(op)						\
-ENTRY(atomic_##op##_return) /* %o0 = increment, %o1 = atomic_ptr */	\
+#define ATOMIC_OP(op) __ATOMIC_OP(op, , op, ) \
+		      __ATOMIC_OP(op, _unchecked, __REFCOUNT_OP(op), __OVERFLOW_IOP)
+
+#define __ATOMIC_OP_RETURN(op, suffix, asm_op, post_op)			\
+ENTRY(atomic_##op##_return##suffix) /* %o0 = increment, %o1 = atomic_ptr */\
 	BACKOFF_SETUP(%o2);						\
 1:	lduw	[%o1], %g1;						\
-	op	%g1, %o0, %g7;						\
+	asm_op	%g1, %o0, %g7;						\
+	post_op								\
 	cas	[%o1], %g1, %g7;					\
 	cmp	%g1, %g7;						\
 	bne,pn	%icc, BACKOFF_LABEL(2f, 1b);				\
@@ -43,6 +58,9 @@ ENTRY(atomic_##op##_return) /* %o0 = increment, %o1 = atomic_ptr */	\
 2:	BACKOFF_SPIN(%o2, %o3, 1b);					\
 ENDPROC(atomic_##op##_return);
 
+#define ATOMIC_OP_RETURN(op) __ATOMIC_OP_RETURN(op, , op, ) \
+			     __ATOMIC_OP_RETURN(op, _unchecked, __REFCOUNT_OP(op), __OVERFLOW_IOP)
+
 #define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_OP_RETURN(op)
 
 ATOMIC_OPS(add)
@@ -53,13 +71,16 @@ ATOMIC_OP(xor)
 
 #undef ATOMIC_OPS
 #undef ATOMIC_OP_RETURN
+#undef __ATOMIC_OP_RETURN
 #undef ATOMIC_OP
+#undef __ATOMIC_OP
 
-#define ATOMIC64_OP(op)							\
-ENTRY(atomic64_##op) /* %o0 = increment, %o1 = atomic_ptr */		\
+#define __ATOMIC64_OP(op, suffix, asm_op, post_op)			\
+ENTRY(atomic64_##op##suffix) /* %o0 = increment, %o1 = atomic_ptr */	\
 	BACKOFF_SETUP(%o2);						\
 1:	ldx	[%o1], %g1;						\
-	op	%g1, %o0, %g7;						\
+	asm_op	%g1, %o0, %g7;						\
+	post_op								\
 	casx	[%o1], %g1, %g7;					\
 	cmp	%g1, %g7;						\
 	bne,pn	%xcc, BACKOFF_LABEL(2f, 1b);				\
@@ -69,11 +90,15 @@ ENTRY(atomic64_##op) /* %o0 = increment, %o1 = atomic_ptr */		\
 2:	BACKOFF_SPIN(%o2, %o3, 1b);					\
 ENDPROC(atomic64_##op);							\
 
-#define ATOMIC64_OP_RETURN(op)						\
-ENTRY(atomic64_##op##_return) /* %o0 = increment, %o1 = atomic_ptr */	\
+#define ATOMIC64_OP(op) __ATOMIC64_OP(op, , op, ) \
+			__ATOMIC64_OP(op, _unchecked, __REFCOUNT_OP(op), __OVERFLOW_XOP)
+
+#define __ATOMIC64_OP_RETURN(op, suffix, asm_op, post_op)		\
+ENTRY(atomic64_##op##_return##suffix) /* %o0 = increment, %o1 = atomic_ptr */\
 	BACKOFF_SETUP(%o2);						\
 1:	ldx	[%o1], %g1;						\
-	op	%g1, %o0, %g7;						\
+	asm_op	%g1, %o0, %g7;						\
+	post_op								\
 	casx	[%o1], %g1, %g7;					\
 	cmp	%g1, %g7;						\
 	bne,pn	%xcc, BACKOFF_LABEL(2f, 1b);				\
@@ -83,6 +108,9 @@ ENTRY(atomic64_##op##_return) /* %o0 = increment, %o1 = atomic_ptr */	\
 2:	BACKOFF_SPIN(%o2, %o3, 1b);					\
 ENDPROC(atomic64_##op##_return);
 
+#define ATOMIC64_OP_RETURN(op) __ATOMIC64_OP_RETURN(op, , op, ) \
+			       __ATOMIC64_OP_RETURN(op, _unchecked, __REFCOUNT_OP(op), __OVERFLOW_XOP)
+
 #define ATOMIC64_OPS(op) ATOMIC64_OP(op) ATOMIC64_OP_RETURN(op)
 
 ATOMIC64_OPS(add)
@@ -93,7 +121,12 @@ ATOMIC64_OP(xor)
 
 #undef ATOMIC64_OPS
 #undef ATOMIC64_OP_RETURN
+#undef __ATOMIC64_OP_RETURN
 #undef ATOMIC64_OP
+#undef __ATOMIC64_OP
+#undef __OVERFLOW_XOP
+#undef __OVERFLOW_IOP
+#undef __REFCOUNT_OP
 
 ENTRY(atomic64_dec_if_positive) /* %o0 = atomic_ptr */
 	BACKOFF_SETUP(%o2)
diff --git a/arch/sparc/lib/ksyms.c b/arch/sparc/lib/ksyms.c
index 8eb454c..7bd92f6 100644
--- a/arch/sparc/lib/ksyms.c
+++ b/arch/sparc/lib/ksyms.c
@@ -101,7 +101,9 @@ EXPORT_SYMBOL(__clear_user);
 /* Atomic counter implementation. */
 #define ATOMIC_OP(op)							\
 EXPORT_SYMBOL(atomic_##op);						\
-EXPORT_SYMBOL(atomic64_##op);
+EXPORT_SYMBOL(atomic_##op##_unchecked);					\
+EXPORT_SYMBOL(atomic64_##op);						\
+EXPORT_SYMBOL(atomic64_##op##_unchecked);
 
 #define ATOMIC_OP_RETURN(op)						\
 EXPORT_SYMBOL(atomic_##op##_return);					\
@@ -110,6 +112,8 @@ EXPORT_SYMBOL(atomic64_##op##_return);
 #define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_OP_RETURN(op)
 
 ATOMIC_OPS(add)
+EXPORT_SYMBOL(atomic_add_return_unchecked);
+EXPORT_SYMBOL(atomic64_add_return_unchecked);
 ATOMIC_OPS(sub)
 ATOMIC_OP(and)
 ATOMIC_OP(or)
diff --git a/arch/sparc/mm/Makefile b/arch/sparc/mm/Makefile
index 30c3ecc..736f015 100644
--- a/arch/sparc/mm/Makefile
+++ b/arch/sparc/mm/Makefile
@@ -2,7 +2,7 @@
 #
 
 asflags-y := -ansi
-ccflags-y := -Werror
+#ccflags-y := -Werror
 
 obj-$(CONFIG_SPARC64)   += ultra.o tlb.o tsb.o gup.o
 obj-y                   += fault_$(BITS).o
diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c
index b6c559c..cc30ea0 100644
--- a/arch/sparc/mm/fault_32.c
+++ b/arch/sparc/mm/fault_32.c
@@ -22,6 +22,9 @@
 #include <linux/interrupt.h>
 #include <linux/kdebug.h>
 #include <linux/uaccess.h>
+#include <linux/slab.h>
+#include <linux/pagemap.h>
+#include <linux/compiler.h>
 
 #include <asm/page.h>
 #include <asm/pgtable.h>
@@ -156,6 +159,277 @@ static unsigned long compute_si_addr(struct pt_regs *regs, int text_fault)
 	return safe_compute_effective_address(regs, insn);
 }
 
+#ifdef CONFIG_PAX_PAGEEXEC
+#ifdef CONFIG_PAX_DLRESOLVE
+static void pax_emuplt_close(struct vm_area_struct *vma)
+{
+	vma->vm_mm->call_dl_resolve = 0UL;
+}
+
+static int pax_emuplt_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+	unsigned int *kaddr;
+
+	vmf->page = alloc_page(GFP_HIGHUSER);
+	if (!vmf->page)
+		return VM_FAULT_OOM;
+
+	kaddr = kmap(vmf->page);
+	memset(kaddr, 0, PAGE_SIZE);
+	kaddr[0] = 0x9DE3BFA8U; /* save */
+	flush_dcache_page(vmf->page);
+	kunmap(vmf->page);
+	return VM_FAULT_MAJOR;
+}
+
+static const struct vm_operations_struct pax_vm_ops = {
+	.close = pax_emuplt_close,
+	.fault = pax_emuplt_fault
+};
+
+static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr)
+{
+	int ret;
+
+	INIT_LIST_HEAD(&vma->anon_vma_chain);
+	vma->vm_mm = current->mm;
+	vma->vm_start = addr;
+	vma->vm_end = addr + PAGE_SIZE;
+	vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC;
+	vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
+	vma->vm_ops = &pax_vm_ops;
+
+	ret = insert_vm_struct(current->mm, vma);
+	if (ret)
+		return ret;
+
+	++current->mm->total_vm;
+	return 0;
+}
+#endif
+
+/*
+ * PaX: decide what to do with offenders (regs->pc = fault address)
+ *
+ * returns 1 when task should be killed
+ *         2 when patched PLT trampoline was detected
+ *         3 when unpatched PLT trampoline was detected
+ */
+static int pax_handle_fetch_fault(struct pt_regs *regs)
+{
+
+#ifdef CONFIG_PAX_EMUPLT
+	int err;
+
+	do { /* PaX: patched PLT emulation #1 */
+		unsigned int sethi1, sethi2, jmpl;
+
+		err = get_user(sethi1, (unsigned int *)regs->pc);
+		err |= get_user(sethi2, (unsigned int *)(regs->pc+4));
+		err |= get_user(jmpl, (unsigned int *)(regs->pc+8));
+
+		if (err)
+			break;
+
+		if ((sethi1 & 0xFFC00000U) == 0x03000000U &&
+		    (sethi2 & 0xFFC00000U) == 0x03000000U &&
+		    (jmpl & 0xFFFFE000U) == 0x81C06000U)
+		{
+			unsigned int addr;
+
+			regs->u_regs[UREG_G1] = (sethi2 & 0x003FFFFFU) << 10;
+			addr = regs->u_regs[UREG_G1];
+			addr += (((jmpl | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U);
+			regs->pc = addr;
+			regs->npc = addr+4;
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: patched PLT emulation #2 */
+		unsigned int ba;
+
+		err = get_user(ba, (unsigned int *)regs->pc);
+
+		if (err)
+			break;
+
+		if ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30480000U) {
+			unsigned int addr;
+
+			if ((ba & 0xFFC00000U) == 0x30800000U)
+				addr = regs->pc + ((((ba | 0xFFC00000U) ^ 0x00200000U) + 0x00200000U) << 2);
+			else
+				addr = regs->pc + ((((ba | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2);
+			regs->pc = addr;
+			regs->npc = addr+4;
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: patched PLT emulation #3 */
+		unsigned int sethi, bajmpl, nop;
+
+		err = get_user(sethi, (unsigned int *)regs->pc);
+		err |= get_user(bajmpl, (unsigned int *)(regs->pc+4));
+		err |= get_user(nop, (unsigned int *)(regs->pc+8));
+
+		if (err)
+			break;
+
+		if ((sethi & 0xFFC00000U) == 0x03000000U &&
+		    ((bajmpl & 0xFFFFE000U) == 0x81C06000U || (bajmpl & 0xFFF80000U) == 0x30480000U) &&
+		    nop == 0x01000000U)
+		{
+			unsigned int addr;
+
+			addr = (sethi & 0x003FFFFFU) << 10;
+			regs->u_regs[UREG_G1] = addr;
+			if ((bajmpl & 0xFFFFE000U) == 0x81C06000U)
+				addr += (((bajmpl | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U);
+			else
+				addr = regs->pc + ((((bajmpl | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2);
+			regs->pc = addr;
+			regs->npc = addr+4;
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: unpatched PLT emulation step 1 */
+		unsigned int sethi, ba, nop;
+
+		err = get_user(sethi, (unsigned int *)regs->pc);
+		err |= get_user(ba, (unsigned int *)(regs->pc+4));
+		err |= get_user(nop, (unsigned int *)(regs->pc+8));
+
+		if (err)
+			break;
+
+		if ((sethi & 0xFFC00000U) == 0x03000000U &&
+		    ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30680000U) &&
+		    nop == 0x01000000U)
+		{
+			unsigned int addr, save, call;
+
+			if ((ba & 0xFFC00000U) == 0x30800000U)
+				addr = regs->pc + 4 + ((((ba | 0xFFC00000U) ^ 0x00200000U) + 0x00200000U) << 2);
+			else
+				addr = regs->pc + 4 + ((((ba | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2);
+
+			err = get_user(save, (unsigned int *)addr);
+			err |= get_user(call, (unsigned int *)(addr+4));
+			err |= get_user(nop, (unsigned int *)(addr+8));
+			if (err)
+				break;
+
+#ifdef CONFIG_PAX_DLRESOLVE
+			if (save == 0x9DE3BFA8U &&
+			    (call & 0xC0000000U) == 0x40000000U &&
+			    nop == 0x01000000U)
+			{
+				struct vm_area_struct *vma;
+				unsigned long call_dl_resolve;
+
+				down_read(&current->mm->mmap_sem);
+				call_dl_resolve = current->mm->call_dl_resolve;
+				up_read(&current->mm->mmap_sem);
+				if (likely(call_dl_resolve))
+					goto emulate;
+
+				vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
+
+				down_write(&current->mm->mmap_sem);
+				if (current->mm->call_dl_resolve) {
+					call_dl_resolve = current->mm->call_dl_resolve;
+					up_write(&current->mm->mmap_sem);
+					if (vma)
+						kmem_cache_free(vm_area_cachep, vma);
+					goto emulate;
+				}
+
+				call_dl_resolve = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE);
+				if (!vma || (call_dl_resolve & ~PAGE_MASK)) {
+					up_write(&current->mm->mmap_sem);
+					if (vma)
+						kmem_cache_free(vm_area_cachep, vma);
+					return 1;
+				}
+
+				if (pax_insert_vma(vma, call_dl_resolve)) {
+					up_write(&current->mm->mmap_sem);
+					kmem_cache_free(vm_area_cachep, vma);
+					return 1;
+				}
+
+				current->mm->call_dl_resolve = call_dl_resolve;
+				up_write(&current->mm->mmap_sem);
+
+emulate:
+				regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
+				regs->pc = call_dl_resolve;
+				regs->npc = addr+4;
+				return 3;
+			}
+#endif
+
+			/* PaX: glibc 2.4+ generates sethi/jmpl instead of save/call */
+			if ((save & 0xFFC00000U) == 0x05000000U &&
+			    (call & 0xFFFFE000U) == 0x85C0A000U &&
+			    nop == 0x01000000U)
+			{
+				regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
+				regs->u_regs[UREG_G2] = addr + 4;
+				addr = (save & 0x003FFFFFU) << 10;
+				addr += (((call | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U);
+				regs->pc = addr;
+				regs->npc = addr+4;
+				return 3;
+			}
+		}
+	} while (0);
+
+	do { /* PaX: unpatched PLT emulation step 2 */
+		unsigned int save, call, nop;
+
+		err = get_user(save, (unsigned int *)(regs->pc-4));
+		err |= get_user(call, (unsigned int *)regs->pc);
+		err |= get_user(nop, (unsigned int *)(regs->pc+4));
+		if (err)
+			break;
+
+		if (save == 0x9DE3BFA8U &&
+		    (call & 0xC0000000U) == 0x40000000U &&
+		    nop == 0x01000000U)
+		{
+			unsigned int dl_resolve = regs->pc + ((((call | 0xC0000000U) ^ 0x20000000U) + 0x20000000U) << 2);
+
+			regs->u_regs[UREG_RETPC] = regs->pc;
+			regs->pc = dl_resolve;
+			regs->npc = dl_resolve+4;
+			return 3;
+		}
+	} while (0);
+#endif
+
+	return 1;
+}
+
+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
+{
+	unsigned long i;
+
+	printk(KERN_ERR "PAX: bytes at PC: ");
+	for (i = 0; i < 8; i++) {
+		unsigned int c;
+		if (get_user(c, (unsigned int *)pc+i))
+			printk(KERN_CONT "???????? ");
+		else
+			printk(KERN_CONT "%08x ", c);
+	}
+	printk("\n");
+}
+#endif
+
 static noinline void do_fault_siginfo(int code, int sig, struct pt_regs *regs,
 				      int text_fault)
 {
@@ -226,6 +500,24 @@ good_area:
 		if (!(vma->vm_flags & VM_WRITE))
 			goto bad_area;
 	} else {
+
+#ifdef CONFIG_PAX_PAGEEXEC
+		if ((mm->pax_flags & MF_PAX_PAGEEXEC) && text_fault && !(vma->vm_flags & VM_EXEC)) {
+			up_read(&mm->mmap_sem);
+			switch (pax_handle_fetch_fault(regs)) {
+
+#ifdef CONFIG_PAX_EMUPLT
+			case 2:
+			case 3:
+				return;
+#endif
+
+			}
+			pax_report_fault(regs, (void *)regs->pc, (void *)regs->u_regs[UREG_FP]);
+			do_group_exit(SIGKILL);
+		}
+#endif
+
 		/* Allow reads even for write-only mappings */
 		if (!(vma->vm_flags & (VM_READ | VM_EXEC)))
 			goto bad_area;
diff --git a/arch/sparc/mm/fault_64.c b/arch/sparc/mm/fault_64.c
index cb841a3..f2061fb 100644
--- a/arch/sparc/mm/fault_64.c
+++ b/arch/sparc/mm/fault_64.c
@@ -23,6 +23,9 @@
 #include <linux/percpu.h>
 #include <linux/context_tracking.h>
 #include <linux/uaccess.h>
+#include <linux/slab.h>
+#include <linux/pagemap.h>
+#include <linux/compiler.h>
 
 #include <asm/page.h>
 #include <asm/pgtable.h>
@@ -76,7 +79,7 @@ static void __kprobes bad_kernel_pc(struct pt_regs *regs, unsigned long vaddr)
 	printk(KERN_CRIT "OOPS: Bogus kernel PC [%016lx] in fault handler\n",
 	       regs->tpc);
 	printk(KERN_CRIT "OOPS: RPC [%016lx]\n", regs->u_regs[15]);
-	printk("OOPS: RPC <%pS>\n", (void *) regs->u_regs[15]);
+	printk("OOPS: RPC <%pA>\n", (void *) regs->u_regs[15]);
 	printk(KERN_CRIT "OOPS: Fault was to vaddr[%lx]\n", vaddr);
 	dump_stack();
 	unhandled_fault(regs->tpc, current, regs);
@@ -276,6 +279,466 @@ static void noinline __kprobes bogus_32bit_fault_tpc(struct pt_regs *regs)
 	show_regs(regs);
 }
 
+#ifdef CONFIG_PAX_PAGEEXEC
+#ifdef CONFIG_PAX_DLRESOLVE
+static void pax_emuplt_close(struct vm_area_struct *vma)
+{
+	vma->vm_mm->call_dl_resolve = 0UL;
+}
+
+static int pax_emuplt_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+	unsigned int *kaddr;
+
+	vmf->page = alloc_page(GFP_HIGHUSER);
+	if (!vmf->page)
+		return VM_FAULT_OOM;
+
+	kaddr = kmap(vmf->page);
+	memset(kaddr, 0, PAGE_SIZE);
+	kaddr[0] = 0x9DE3BFA8U; /* save */
+	flush_dcache_page(vmf->page);
+	kunmap(vmf->page);
+	return VM_FAULT_MAJOR;
+}
+
+static const struct vm_operations_struct pax_vm_ops = {
+	.close = pax_emuplt_close,
+	.fault = pax_emuplt_fault
+};
+
+static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr)
+{
+	int ret;
+
+	INIT_LIST_HEAD(&vma->anon_vma_chain);
+	vma->vm_mm = current->mm;
+	vma->vm_start = addr;
+	vma->vm_end = addr + PAGE_SIZE;
+	vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC;
+	vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
+	vma->vm_ops = &pax_vm_ops;
+
+	ret = insert_vm_struct(current->mm, vma);
+	if (ret)
+		return ret;
+
+	++current->mm->total_vm;
+	return 0;
+}
+#endif
+
+/*
+ * PaX: decide what to do with offenders (regs->tpc = fault address)
+ *
+ * returns 1 when task should be killed
+ *         2 when patched PLT trampoline was detected
+ *         3 when unpatched PLT trampoline was detected
+ */
+static int pax_handle_fetch_fault(struct pt_regs *regs)
+{
+
+#ifdef CONFIG_PAX_EMUPLT
+	int err;
+
+	do { /* PaX: patched PLT emulation #1 */
+		unsigned int sethi1, sethi2, jmpl;
+
+		err = get_user(sethi1, (unsigned int *)regs->tpc);
+		err |= get_user(sethi2, (unsigned int *)(regs->tpc+4));
+		err |= get_user(jmpl, (unsigned int *)(regs->tpc+8));
+
+		if (err)
+			break;
+
+		if ((sethi1 & 0xFFC00000U) == 0x03000000U &&
+		    (sethi2 & 0xFFC00000U) == 0x03000000U &&
+		    (jmpl & 0xFFFFE000U) == 0x81C06000U)
+		{
+			unsigned long addr;
+
+			regs->u_regs[UREG_G1] = (sethi2 & 0x003FFFFFU) << 10;
+			addr = regs->u_regs[UREG_G1];
+			addr += (((jmpl | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL);
+
+			if (test_thread_flag(TIF_32BIT))
+				addr &= 0xFFFFFFFFUL;
+
+			regs->tpc = addr;
+			regs->tnpc = addr+4;
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: patched PLT emulation #2 */
+		unsigned int ba;
+
+		err = get_user(ba, (unsigned int *)regs->tpc);
+
+		if (err)
+			break;
+
+		if ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30480000U) {
+			unsigned long addr;
+
+			if ((ba & 0xFFC00000U) == 0x30800000U)
+				addr = regs->tpc + ((((ba | 0xFFFFFFFFFFC00000UL) ^ 0x00200000UL) + 0x00200000UL) << 2);
+			else
+				addr = regs->tpc + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
+
+			if (test_thread_flag(TIF_32BIT))
+				addr &= 0xFFFFFFFFUL;
+
+			regs->tpc = addr;
+			regs->tnpc = addr+4;
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: patched PLT emulation #3 */
+		unsigned int sethi, bajmpl, nop;
+
+		err = get_user(sethi, (unsigned int *)regs->tpc);
+		err |= get_user(bajmpl, (unsigned int *)(regs->tpc+4));
+		err |= get_user(nop, (unsigned int *)(regs->tpc+8));
+
+		if (err)
+			break;
+
+		if ((sethi & 0xFFC00000U) == 0x03000000U &&
+		    ((bajmpl & 0xFFFFE000U) == 0x81C06000U || (bajmpl & 0xFFF80000U) == 0x30480000U) &&
+		    nop == 0x01000000U)
+		{
+			unsigned long addr;
+
+			addr = (sethi & 0x003FFFFFU) << 10;
+			regs->u_regs[UREG_G1] = addr;
+			if ((bajmpl & 0xFFFFE000U) == 0x81C06000U)
+				addr += (((bajmpl | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL);
+			else
+				addr = regs->tpc + ((((bajmpl | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
+
+			if (test_thread_flag(TIF_32BIT))
+				addr &= 0xFFFFFFFFUL;
+
+			regs->tpc = addr;
+			regs->tnpc = addr+4;
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: patched PLT emulation #4 */
+		unsigned int sethi, mov1, call, mov2;
+
+		err = get_user(sethi, (unsigned int *)regs->tpc);
+		err |= get_user(mov1, (unsigned int *)(regs->tpc+4));
+		err |= get_user(call, (unsigned int *)(regs->tpc+8));
+		err |= get_user(mov2, (unsigned int *)(regs->tpc+12));
+
+		if (err)
+			break;
+
+		if ((sethi & 0xFFC00000U) == 0x03000000U &&
+		    mov1 == 0x8210000FU &&
+		    (call & 0xC0000000U) == 0x40000000U &&
+		    mov2 == 0x9E100001U)
+		{
+			unsigned long addr;
+
+			regs->u_regs[UREG_G1] = regs->u_regs[UREG_RETPC];
+			addr = regs->tpc + 4 + ((((call | 0xFFFFFFFFC0000000UL) ^ 0x20000000UL) + 0x20000000UL) << 2);
+
+			if (test_thread_flag(TIF_32BIT))
+				addr &= 0xFFFFFFFFUL;
+
+			regs->tpc = addr;
+			regs->tnpc = addr+4;
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: patched PLT emulation #5 */
+		unsigned int sethi, sethi1, sethi2, or1, or2, sllx, jmpl, nop;
+
+		err = get_user(sethi, (unsigned int *)regs->tpc);
+		err |= get_user(sethi1, (unsigned int *)(regs->tpc+4));
+		err |= get_user(sethi2, (unsigned int *)(regs->tpc+8));
+		err |= get_user(or1, (unsigned int *)(regs->tpc+12));
+		err |= get_user(or2, (unsigned int *)(regs->tpc+16));
+		err |= get_user(sllx, (unsigned int *)(regs->tpc+20));
+		err |= get_user(jmpl, (unsigned int *)(regs->tpc+24));
+		err |= get_user(nop, (unsigned int *)(regs->tpc+28));
+
+		if (err)
+			break;
+
+		if ((sethi & 0xFFC00000U) == 0x03000000U &&
+		    (sethi1 & 0xFFC00000U) == 0x03000000U &&
+		    (sethi2 & 0xFFC00000U) == 0x0B000000U &&
+		    (or1 & 0xFFFFE000U) == 0x82106000U &&
+		    (or2 & 0xFFFFE000U) == 0x8A116000U &&
+		    sllx == 0x83287020U &&
+		    jmpl == 0x81C04005U &&
+		    nop == 0x01000000U)
+		{
+			unsigned long addr;
+
+			regs->u_regs[UREG_G1] = ((sethi1 & 0x003FFFFFU) << 10) | (or1 & 0x000003FFU);
+			regs->u_regs[UREG_G1] <<= 32;
+			regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or2 & 0x000003FFU);
+			addr = regs->u_regs[UREG_G1] + regs->u_regs[UREG_G5];
+			regs->tpc = addr;
+			regs->tnpc = addr+4;
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: patched PLT emulation #6 */
+		unsigned int sethi, sethi1, sethi2, sllx, or,  jmpl, nop;
+
+		err = get_user(sethi, (unsigned int *)regs->tpc);
+		err |= get_user(sethi1, (unsigned int *)(regs->tpc+4));
+		err |= get_user(sethi2, (unsigned int *)(regs->tpc+8));
+		err |= get_user(sllx, (unsigned int *)(regs->tpc+12));
+		err |= get_user(or, (unsigned int *)(regs->tpc+16));
+		err |= get_user(jmpl, (unsigned int *)(regs->tpc+20));
+		err |= get_user(nop, (unsigned int *)(regs->tpc+24));
+
+		if (err)
+			break;
+
+		if ((sethi & 0xFFC00000U) == 0x03000000U &&
+		    (sethi1 & 0xFFC00000U) == 0x03000000U &&
+		    (sethi2 & 0xFFC00000U) == 0x0B000000U &&
+		    sllx == 0x83287020U &&
+		    (or & 0xFFFFE000U) == 0x8A116000U &&
+		    jmpl == 0x81C04005U &&
+		    nop == 0x01000000U)
+		{
+			unsigned long addr;
+
+			regs->u_regs[UREG_G1] = (sethi1 & 0x003FFFFFU) << 10;
+			regs->u_regs[UREG_G1] <<= 32;
+			regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or & 0x3FFU);
+			addr = regs->u_regs[UREG_G1] + regs->u_regs[UREG_G5];
+			regs->tpc = addr;
+			regs->tnpc = addr+4;
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: unpatched PLT emulation step 1 */
+		unsigned int sethi, ba, nop;
+
+		err = get_user(sethi, (unsigned int *)regs->tpc);
+		err |= get_user(ba, (unsigned int *)(regs->tpc+4));
+		err |= get_user(nop, (unsigned int *)(regs->tpc+8));
+
+		if (err)
+			break;
+
+		if ((sethi & 0xFFC00000U) == 0x03000000U &&
+		    ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30680000U) &&
+		    nop == 0x01000000U)
+		{
+			unsigned long addr;
+			unsigned int save, call;
+			unsigned int sethi1, sethi2, or1, or2, sllx, add, jmpl;
+
+			if ((ba & 0xFFC00000U) == 0x30800000U)
+				addr = regs->tpc + 4 + ((((ba | 0xFFFFFFFFFFC00000UL) ^ 0x00200000UL) + 0x00200000UL) << 2);
+			else
+				addr = regs->tpc + 4 + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
+
+			if (test_thread_flag(TIF_32BIT))
+				addr &= 0xFFFFFFFFUL;
+
+			err = get_user(save, (unsigned int *)addr);
+			err |= get_user(call, (unsigned int *)(addr+4));
+			err |= get_user(nop, (unsigned int *)(addr+8));
+			if (err)
+				break;
+
+#ifdef CONFIG_PAX_DLRESOLVE
+			if (save == 0x9DE3BFA8U &&
+			    (call & 0xC0000000U) == 0x40000000U &&
+			    nop == 0x01000000U)
+			{
+				struct vm_area_struct *vma;
+				unsigned long call_dl_resolve;
+
+				down_read(&current->mm->mmap_sem);
+				call_dl_resolve = current->mm->call_dl_resolve;
+				up_read(&current->mm->mmap_sem);
+				if (likely(call_dl_resolve))
+					goto emulate;
+
+				vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
+
+				down_write(&current->mm->mmap_sem);
+				if (current->mm->call_dl_resolve) {
+					call_dl_resolve = current->mm->call_dl_resolve;
+					up_write(&current->mm->mmap_sem);
+					if (vma)
+						kmem_cache_free(vm_area_cachep, vma);
+					goto emulate;
+				}
+
+				call_dl_resolve = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE);
+				if (!vma || (call_dl_resolve & ~PAGE_MASK)) {
+					up_write(&current->mm->mmap_sem);
+					if (vma)
+						kmem_cache_free(vm_area_cachep, vma);
+					return 1;
+				}
+
+				if (pax_insert_vma(vma, call_dl_resolve)) {
+					up_write(&current->mm->mmap_sem);
+					kmem_cache_free(vm_area_cachep, vma);
+					return 1;
+				}
+
+				current->mm->call_dl_resolve = call_dl_resolve;
+				up_write(&current->mm->mmap_sem);
+
+emulate:
+				regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
+				regs->tpc = call_dl_resolve;
+				regs->tnpc = addr+4;
+				return 3;
+			}
+#endif
+
+			/* PaX: glibc 2.4+ generates sethi/jmpl instead of save/call */
+			if ((save & 0xFFC00000U) == 0x05000000U &&
+			    (call & 0xFFFFE000U) == 0x85C0A000U &&
+			    nop == 0x01000000U)
+			{
+				regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
+				regs->u_regs[UREG_G2] = addr + 4;
+				addr = (save & 0x003FFFFFU) << 10;
+				addr += (((call | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL);
+
+				if (test_thread_flag(TIF_32BIT))
+					addr &= 0xFFFFFFFFUL;
+
+				regs->tpc = addr;
+				regs->tnpc = addr+4;
+				return 3;
+			}
+
+			/* PaX: 64-bit PLT stub */
+			err = get_user(sethi1, (unsigned int *)addr);
+			err |= get_user(sethi2, (unsigned int *)(addr+4));
+			err |= get_user(or1, (unsigned int *)(addr+8));
+			err |= get_user(or2, (unsigned int *)(addr+12));
+			err |= get_user(sllx, (unsigned int *)(addr+16));
+			err |= get_user(add, (unsigned int *)(addr+20));
+			err |= get_user(jmpl, (unsigned int *)(addr+24));
+			err |= get_user(nop, (unsigned int *)(addr+28));
+			if (err)
+				break;
+
+			if ((sethi1 & 0xFFC00000U) == 0x09000000U &&
+			    (sethi2 & 0xFFC00000U) == 0x0B000000U &&
+			    (or1 & 0xFFFFE000U) == 0x88112000U &&
+			    (or2 & 0xFFFFE000U) == 0x8A116000U &&
+			    sllx == 0x89293020U &&
+			    add == 0x8A010005U &&
+			    jmpl == 0x89C14000U &&
+			    nop == 0x01000000U)
+			{
+				regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
+				regs->u_regs[UREG_G4] = ((sethi1 & 0x003FFFFFU) << 10) | (or1 & 0x000003FFU);
+				regs->u_regs[UREG_G4] <<= 32;
+				regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or2 & 0x000003FFU);
+				regs->u_regs[UREG_G5] += regs->u_regs[UREG_G4];
+				regs->u_regs[UREG_G4] = addr + 24;
+				addr = regs->u_regs[UREG_G5];
+				regs->tpc = addr;
+				regs->tnpc = addr+4;
+				return 3;
+			}
+		}
+	} while (0);
+
+#ifdef CONFIG_PAX_DLRESOLVE
+	do { /* PaX: unpatched PLT emulation step 2 */
+		unsigned int save, call, nop;
+
+		err = get_user(save, (unsigned int *)(regs->tpc-4));
+		err |= get_user(call, (unsigned int *)regs->tpc);
+		err |= get_user(nop, (unsigned int *)(regs->tpc+4));
+		if (err)
+			break;
+
+		if (save == 0x9DE3BFA8U &&
+		    (call & 0xC0000000U) == 0x40000000U &&
+		    nop == 0x01000000U)
+		{
+			unsigned long dl_resolve = regs->tpc + ((((call | 0xFFFFFFFFC0000000UL) ^ 0x20000000UL) + 0x20000000UL) << 2);
+
+			if (test_thread_flag(TIF_32BIT))
+				dl_resolve &= 0xFFFFFFFFUL;
+
+			regs->u_regs[UREG_RETPC] = regs->tpc;
+			regs->tpc = dl_resolve;
+			regs->tnpc = dl_resolve+4;
+			return 3;
+		}
+	} while (0);
+#endif
+
+	do { /* PaX: patched PLT emulation #7, must be AFTER the unpatched PLT emulation */
+		unsigned int sethi, ba, nop;
+
+		err = get_user(sethi, (unsigned int *)regs->tpc);
+		err |= get_user(ba, (unsigned int *)(regs->tpc+4));
+		err |= get_user(nop, (unsigned int *)(regs->tpc+8));
+
+		if (err)
+			break;
+
+		if ((sethi & 0xFFC00000U) == 0x03000000U &&
+		    (ba & 0xFFF00000U) == 0x30600000U &&
+		    nop == 0x01000000U)
+		{
+			unsigned long addr;
+
+			addr = (sethi & 0x003FFFFFU) << 10;
+			regs->u_regs[UREG_G1] = addr;
+			addr = regs->tpc + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
+
+			if (test_thread_flag(TIF_32BIT))
+				addr &= 0xFFFFFFFFUL;
+
+			regs->tpc = addr;
+			regs->tnpc = addr+4;
+			return 2;
+		}
+	} while (0);
+
+#endif
+
+	return 1;
+}
+
+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
+{
+	unsigned long i;
+
+	printk(KERN_ERR "PAX: bytes at PC: ");
+	for (i = 0; i < 8; i++) {
+		unsigned int c;
+		if (get_user(c, (unsigned int *)pc+i))
+			printk(KERN_CONT "???????? ");
+		else
+			printk(KERN_CONT "%08x ", c);
+	}
+	printk("\n");
+}
+#endif
+
 asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
 {
 	enum ctx_state prev_state = exception_enter();
@@ -350,6 +813,29 @@ retry:
 	if (!vma)
 		goto bad_area;
 
+#ifdef CONFIG_PAX_PAGEEXEC
+	/* PaX: detect ITLB misses on non-exec pages */
+	if ((mm->pax_flags & MF_PAX_PAGEEXEC) && vma->vm_start <= address &&
+	    !(vma->vm_flags & VM_EXEC) && (fault_code & FAULT_CODE_ITLB))
+	{
+		if (address != regs->tpc)
+			goto good_area;
+
+		up_read(&mm->mmap_sem);
+		switch (pax_handle_fetch_fault(regs)) {
+
+#ifdef CONFIG_PAX_EMUPLT
+		case 2:
+		case 3:
+			return;
+#endif
+
+		}
+		pax_report_fault(regs, (void *)regs->tpc, (void *)(regs->u_regs[UREG_FP] + STACK_BIAS));
+		do_group_exit(SIGKILL);
+	}
+#endif
+
 	/* Pure DTLB misses do not tell us whether the fault causing
 	 * load/store/atomic was a write or not, it only says that there
 	 * was no match.  So in such a case we (carefully) read the
diff --git a/arch/sparc/mm/hugetlbpage.c b/arch/sparc/mm/hugetlbpage.c
index ba52e64..eee5791 100644
--- a/arch/sparc/mm/hugetlbpage.c
+++ b/arch/sparc/mm/hugetlbpage.c
@@ -25,8 +25,10 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *filp,
 							unsigned long addr,
 							unsigned long len,
 							unsigned long pgoff,
-							unsigned long flags)
+							unsigned long flags,
+							unsigned long offset)
 {
+	struct mm_struct *mm = current->mm;
 	unsigned long task_size = TASK_SIZE;
 	struct vm_unmapped_area_info info;
 
@@ -35,15 +37,22 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *filp,
 
 	info.flags = 0;
 	info.length = len;
-	info.low_limit = TASK_UNMAPPED_BASE;
+	info.low_limit = mm->mmap_base;
 	info.high_limit = min(task_size, VA_EXCLUDE_START);
 	info.align_mask = PAGE_MASK & ~HPAGE_MASK;
 	info.align_offset = 0;
+	info.threadstack_offset = offset;
 	addr = vm_unmapped_area(&info);
 
 	if ((addr & ~PAGE_MASK) && task_size > VA_EXCLUDE_END) {
 		VM_BUG_ON(addr != -ENOMEM);
 		info.low_limit = VA_EXCLUDE_END;
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			info.low_limit += mm->delta_mmap;
+#endif
+
 		info.high_limit = task_size;
 		addr = vm_unmapped_area(&info);
 	}
@@ -52,10 +61,11 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *filp,
 }
 
 static unsigned long
-hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
-				  const unsigned long len,
-				  const unsigned long pgoff,
-				  const unsigned long flags)
+hugetlb_get_unmapped_area_topdown(struct file *filp, unsigned long addr0,
+				  unsigned long len,
+				  unsigned long pgoff,
+				  unsigned long flags,
+				  unsigned long offset)
 {
 	struct mm_struct *mm = current->mm;
 	unsigned long addr = addr0;
@@ -70,6 +80,7 @@ hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	info.high_limit = mm->mmap_base;
 	info.align_mask = PAGE_MASK & ~HPAGE_MASK;
 	info.align_offset = 0;
+	info.threadstack_offset = offset;
 	addr = vm_unmapped_area(&info);
 
 	/*
@@ -82,6 +93,12 @@ hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 		VM_BUG_ON(addr != -ENOMEM);
 		info.flags = 0;
 		info.low_limit = TASK_UNMAPPED_BASE;
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			info.low_limit += mm->delta_mmap;
+#endif
+
 		info.high_limit = STACK_TOP32;
 		addr = vm_unmapped_area(&info);
 	}
@@ -96,6 +113,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
 	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 	unsigned long task_size = TASK_SIZE;
+	unsigned long offset = gr_rand_threadstack_offset(mm, file, flags);
 
 	if (test_thread_flag(TIF_32BIT))
 		task_size = STACK_TOP32;
@@ -111,19 +129,22 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
 		return addr;
 	}
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (addr) {
 		addr = ALIGN(addr, HPAGE_SIZE);
 		vma = find_vma(mm, addr);
-		if (task_size - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
 			return addr;
 	}
 	if (mm->get_unmapped_area == arch_get_unmapped_area)
 		return hugetlb_get_unmapped_area_bottomup(file, addr, len,
-				pgoff, flags);
+				pgoff, flags, offset);
 	else
 		return hugetlb_get_unmapped_area_topdown(file, addr, len,
-				pgoff, flags);
+				pgoff, flags, offset);
 }
 
 pte_t *huge_pte_alloc(struct mm_struct *mm,
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index 14bb0d5..ae289b8 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -189,9 +189,9 @@ unsigned long sparc64_kern_sec_context __read_mostly;
 int num_kernel_image_mappings;
 
 #ifdef CONFIG_DEBUG_DCFLUSH
-atomic_t dcpage_flushes = ATOMIC_INIT(0);
+atomic_unchecked_t dcpage_flushes = ATOMIC_INIT(0);
 #ifdef CONFIG_SMP
-atomic_t dcpage_flushes_xcall = ATOMIC_INIT(0);
+atomic_unchecked_t dcpage_flushes_xcall = ATOMIC_INIT(0);
 #endif
 #endif
 
@@ -199,7 +199,7 @@ inline void flush_dcache_page_impl(struct page *page)
 {
 	BUG_ON(tlb_type == hypervisor);
 #ifdef CONFIG_DEBUG_DCFLUSH
-	atomic_inc(&dcpage_flushes);
+	atomic_inc_unchecked(&dcpage_flushes);
 #endif
 
 #ifdef DCACHE_ALIASING_POSSIBLE
@@ -459,10 +459,10 @@ void mmu_info(struct seq_file *m)
 
 #ifdef CONFIG_DEBUG_DCFLUSH
 	seq_printf(m, "DCPageFlushes\t: %d\n",
-		   atomic_read(&dcpage_flushes));
+		   atomic_read_unchecked(&dcpage_flushes));
 #ifdef CONFIG_SMP
 	seq_printf(m, "DCPageFlushesXC\t: %d\n",
-		   atomic_read(&dcpage_flushes_xcall));
+		   atomic_read_unchecked(&dcpage_flushes_xcall));
 #endif /* CONFIG_SMP */
 #endif /* CONFIG_DEBUG_DCFLUSH */
 }
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 8171930..c60b093 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -203,6 +203,7 @@ source "kernel/Kconfig.hz"
 config KEXEC
 	bool "kexec system call"
 	select KEXEC_CORE
+	depends on !GRKERNSEC_KMEM
 	---help---
 	  kexec is a system call that implements the ability to shutdown your
 	  current kernel, and to start another kernel.  It is like a reboot
diff --git a/arch/tile/include/asm/atomic_64.h b/arch/tile/include/asm/atomic_64.h
index 51cabc2..77cceee 100644
--- a/arch/tile/include/asm/atomic_64.h
+++ b/arch/tile/include/asm/atomic_64.h
@@ -145,6 +145,16 @@ static inline void atomic64_xor(long i, atomic64_t *v)
 
 #define atomic64_inc_not_zero(v)	atomic64_add_unless((v), 1, 0)
 
+#define atomic64_read_unchecked(v)		atomic64_read(v)
+#define atomic64_set_unchecked(v, i)		atomic64_set((v), (i))
+#define atomic64_add_unchecked(a, v)		atomic64_add((a), (v))
+#define atomic64_add_return_unchecked(a, v)	atomic64_add_return((a), (v))
+#define atomic64_sub_unchecked(a, v)		atomic64_sub((a), (v))
+#define atomic64_inc_unchecked(v)		atomic64_inc(v)
+#define atomic64_inc_return_unchecked(v)	atomic64_inc_return(v)
+#define atomic64_dec_unchecked(v)		atomic64_dec(v)
+#define atomic64_cmpxchg_unchecked(v, o, n)	atomic64_cmpxchg((v), (o), (n))
+
 #endif /* !__ASSEMBLY__ */
 
 #endif /* _ASM_TILE_ATOMIC_64_H */
diff --git a/arch/tile/include/asm/cache.h b/arch/tile/include/asm/cache.h
index 6160761..00cac88 100644
--- a/arch/tile/include/asm/cache.h
+++ b/arch/tile/include/asm/cache.h
@@ -15,11 +15,12 @@
 #ifndef _ASM_TILE_CACHE_H
 #define _ASM_TILE_CACHE_H
 
+#include <linux/const.h>
 #include <arch/chip.h>
 
 /* bytes per L1 data cache line */
 #define L1_CACHE_SHIFT		CHIP_L1D_LOG_LINE_SIZE()
-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
+#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
 
 /* bytes per L2 cache line */
 #define L2_CACHE_SHIFT		CHIP_L2_LOG_LINE_SIZE()
diff --git a/arch/tile/include/asm/uaccess.h b/arch/tile/include/asm/uaccess.h
index 0a9c4265..bfb62d1 100644
--- a/arch/tile/include/asm/uaccess.h
+++ b/arch/tile/include/asm/uaccess.h
@@ -429,9 +429,9 @@ static inline unsigned long __must_check copy_from_user(void *to,
 					  const void __user *from,
 					  unsigned long n)
 {
-	int sz = __compiletime_object_size(to);
+	size_t sz = __compiletime_object_size(to);
 
-	if (likely(sz == -1 || sz >= n))
+	if (likely(sz == (size_t)-1 || sz >= n))
 		n = _copy_from_user(to, from, n);
 	else
 		copy_from_user_overflow();
diff --git a/arch/tile/mm/hugetlbpage.c b/arch/tile/mm/hugetlbpage.c
index e212c64..5f238fc 100644
--- a/arch/tile/mm/hugetlbpage.c
+++ b/arch/tile/mm/hugetlbpage.c
@@ -174,6 +174,7 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *file,
 	info.high_limit = TASK_SIZE;
 	info.align_mask = PAGE_MASK & ~huge_page_mask(h);
 	info.align_offset = 0;
+	info.threadstack_offset = 0;
 	return vm_unmapped_area(&info);
 }
 
@@ -191,6 +192,7 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
 	info.high_limit = current->mm->mmap_base;
 	info.align_mask = PAGE_MASK & ~huge_page_mask(h);
 	info.align_offset = 0;
+	info.threadstack_offset = 0;
 	addr = vm_unmapped_area(&info);
 
 	/*
diff --git a/arch/um/Makefile b/arch/um/Makefile
index e3abe6f..33a363c 100644
--- a/arch/um/Makefile
+++ b/arch/um/Makefile
@@ -73,6 +73,8 @@ USER_CFLAGS = $(patsubst $(KERNEL_DEFINES),,$(patsubst -I%,,$(KBUILD_CFLAGS))) \
 		-D_FILE_OFFSET_BITS=64 -idirafter $(srctree)/include \
 		-idirafter $(obj)/include -D__KERNEL__ -D__UM_HOST__
 
+USER_CFLAGS	:= $(filter-out $(GCC_PLUGINS_CFLAGS),$(USER_CFLAGS))
+
 #This will adjust *FLAGS accordingly to the platform.
 include $(ARCH_DIR)/Makefile-os-$(OS)
 
diff --git a/arch/um/include/asm/cache.h b/arch/um/include/asm/cache.h
index 19e1bdd..3665b77 100644
--- a/arch/um/include/asm/cache.h
+++ b/arch/um/include/asm/cache.h
@@ -1,6 +1,7 @@
 #ifndef __UM_CACHE_H
 #define __UM_CACHE_H
 
+#include <linux/const.h>
 
 #if defined(CONFIG_UML_X86) && !defined(CONFIG_64BIT)
 # define L1_CACHE_SHIFT		(CONFIG_X86_L1_CACHE_SHIFT)
@@ -12,6 +13,6 @@
 # define L1_CACHE_SHIFT		5
 #endif
 
-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
+#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
 
 #endif
diff --git a/arch/um/include/asm/kmap_types.h b/arch/um/include/asm/kmap_types.h
index 2e0a6b1..a64d0f5 100644
--- a/arch/um/include/asm/kmap_types.h
+++ b/arch/um/include/asm/kmap_types.h
@@ -8,6 +8,6 @@
 
 /* No more #include "asm/arch/kmap_types.h" ! */
 
-#define KM_TYPE_NR 14
+#define KM_TYPE_NR 15
 
 #endif
diff --git a/arch/um/include/asm/page.h b/arch/um/include/asm/page.h
index f878bec..ca09300 100644
--- a/arch/um/include/asm/page.h
+++ b/arch/um/include/asm/page.h
@@ -14,6 +14,9 @@
 #define PAGE_SIZE	(_AC(1, UL) << PAGE_SHIFT)
 #define PAGE_MASK	(~(PAGE_SIZE-1))
 
+#define ktla_ktva(addr)			(addr)
+#define ktva_ktla(addr)			(addr)
+
 #ifndef __ASSEMBLY__
 
 struct page;
diff --git a/arch/um/include/asm/pgtable-3level.h b/arch/um/include/asm/pgtable-3level.h
index bae8523..ba9484b 100644
--- a/arch/um/include/asm/pgtable-3level.h
+++ b/arch/um/include/asm/pgtable-3level.h
@@ -58,6 +58,7 @@
 #define pud_present(x)	(pud_val(x) & _PAGE_PRESENT)
 #define pud_populate(mm, pud, pmd) \
 	set_pud(pud, __pud(_PAGE_TABLE + __pa(pmd)))
+#define pud_populate_kernel(mm, pud, pmd) pud_populate((mm), (pud), (pmd))
 
 #ifdef CONFIG_64BIT
 #define set_pud(pudptr, pudval) set_64bit((u64 *) (pudptr), pud_val(pudval))
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index 48af59a..4c75105 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -347,22 +347,6 @@ int singlestepping(void * t)
 	return 2;
 }
 
-/*
- * Only x86 and x86_64 have an arch_align_stack().
- * All other arches have "#define arch_align_stack(x) (x)"
- * in their asm/exec.h
- * As this is included in UML from asm-um/system-generic.h,
- * we can use it to behave as the subarch does.
- */
-#ifndef arch_align_stack
-unsigned long arch_align_stack(unsigned long sp)
-{
-	if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
-		sp -= get_random_int() % 8192;
-	return sp & ~0xf;
-}
-#endif
-
 unsigned long get_wchan(struct task_struct *p)
 {
 	unsigned long stack_page, sp, ip;
diff --git a/arch/unicore32/include/asm/cache.h b/arch/unicore32/include/asm/cache.h
index ad8f795..2c7eec6 100644
--- a/arch/unicore32/include/asm/cache.h
+++ b/arch/unicore32/include/asm/cache.h
@@ -12,8 +12,10 @@
 #ifndef __UNICORE_CACHE_H__
 #define __UNICORE_CACHE_H__
 
-#define L1_CACHE_SHIFT		(5)
-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
+#include <linux/const.h>
+
+#define L1_CACHE_SHIFT		5
+#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
 
 /*
  * Memory returned by kmalloc() may be used for DMA, so we must make
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 2dc18605..5796232 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -39,14 +39,13 @@ config X86
 	select ARCH_MIGHT_HAVE_PC_SERIO
 	select ARCH_SUPPORTS_ATOMIC_RMW
 	select ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT
-	select ARCH_SUPPORTS_INT128		if X86_64
+	select ARCH_SUPPORTS_INT128		if X86_64 && !PAX_SIZE_OVERFLOW
 	select ARCH_SUPPORTS_NUMA_BALANCING	if X86_64
 	select ARCH_USE_BUILTIN_BSWAP
 	select ARCH_USE_CMPXCHG_LOCKREF		if X86_64
 	select ARCH_USE_QUEUED_RWLOCKS
 	select ARCH_USE_QUEUED_SPINLOCKS
 	select ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH if SMP
-	select ARCH_WANTS_DYNAMIC_TASK_STRUCT
 	select ARCH_WANT_FRAME_POINTERS
 	select ARCH_WANT_IPC_PARSE_VERSION	if X86_32
 	select ARCH_WANT_OPTIONAL_GPIOLIB
@@ -92,7 +91,7 @@ config X86
 	select HAVE_ARCH_TRACEHOOK
 	select HAVE_ARCH_TRANSPARENT_HUGEPAGE
 	select HAVE_BPF_JIT			if X86_64
-	select HAVE_CC_STACKPROTECTOR
+	select HAVE_CC_STACKPROTECTOR		if X86_64 || !PAX_MEMORY_UDEREF
 	select HAVE_CMPXCHG_DOUBLE
 	select HAVE_CMPXCHG_LOCAL
 	select HAVE_CONTEXT_TRACKING		if X86_64
@@ -110,6 +109,7 @@ config X86
 	select HAVE_FUNCTION_GRAPH_FP_TEST
 	select HAVE_FUNCTION_GRAPH_TRACER
 	select HAVE_FUNCTION_TRACER
+	select HAVE_GCC_PLUGINS
 	select HAVE_GENERIC_DMA_COHERENT	if X86_32
 	select HAVE_HW_BREAKPOINT
 	select HAVE_IDE
@@ -188,11 +188,13 @@ config MMU
 	def_bool y
 
 config ARCH_MMAP_RND_BITS_MIN
-	default 28 if 64BIT
+	default 28 if 64BIT && !PAX_PER_CPU_PGD
+	default 27 if 64BIT && PAX_PER_CPU_PGD
 	default 8
 
 config ARCH_MMAP_RND_BITS_MAX
-	default 32 if 64BIT
+	default 32 if 64BIT && !PAX_PER_CPU_PGD
+	default 27 if 64BIT && PAX_PER_CPU_PGD
 	default 16
 
 config ARCH_MMAP_RND_COMPAT_BITS_MIN
@@ -294,7 +296,7 @@ config X86_64_SMP
 
 config X86_32_LAZY_GS
 	def_bool y
-	depends on X86_32 && !CC_STACKPROTECTOR
+	depends on X86_32 && !CC_STACKPROTECTOR && !PAX_MEMORY_UDEREF
 
 config ARCH_HWEIGHT_CFLAGS
 	string
@@ -681,6 +683,7 @@ config SCHED_OMIT_FRAME_POINTER
 
 menuconfig HYPERVISOR_GUEST
 	bool "Linux guest support"
+	depends on !GRKERNSEC_CONFIG_AUTO || GRKERNSEC_CONFIG_VIRT_GUEST || (GRKERNSEC_CONFIG_VIRT_HOST && GRKERNSEC_CONFIG_VIRT_XEN)
 	---help---
 	  Say Y here to enable options for running Linux under various hyper-
 	  visors. This option enables basic hypervisor detection and platform
@@ -1080,6 +1083,7 @@ config VM86
 
 config X86_16BIT
 	bool "Enable support for 16-bit segments" if EXPERT
+	depends on !GRKERNSEC
 	default y
 	depends on MODIFY_LDT_SYSCALL
 	---help---
@@ -1243,6 +1247,7 @@ choice
 
 config NOHIGHMEM
 	bool "off"
+	depends on !(PAX_PAGEEXEC && PAX_ENABLE_PAE)
 	---help---
 	  Linux can use up to 64 Gigabytes of physical memory on x86 systems.
 	  However, the address space of 32-bit x86 processors is only 4
@@ -1279,6 +1284,7 @@ config NOHIGHMEM
 
 config HIGHMEM4G
 	bool "4GB"
+	depends on !(PAX_PAGEEXEC && PAX_ENABLE_PAE)
 	---help---
 	  Select this if you have a 32-bit processor and between 1 and 4
 	  gigabytes of physical RAM.
@@ -1331,7 +1337,7 @@ config PAGE_OFFSET
 	hex
 	default 0xB0000000 if VMSPLIT_3G_OPT
 	default 0x80000000 if VMSPLIT_2G
-	default 0x78000000 if VMSPLIT_2G_OPT
+	default 0x70000000 if VMSPLIT_2G_OPT
 	default 0x40000000 if VMSPLIT_1G
 	default 0xC0000000
 	depends on X86_32
@@ -1352,7 +1358,6 @@ config X86_PAE
 
 config ARCH_PHYS_ADDR_T_64BIT
 	def_bool y
-	depends on X86_64 || X86_PAE
 
 config ARCH_DMA_ADDR_T_64BIT
 	def_bool y
@@ -1483,7 +1488,7 @@ config ARCH_PROC_KCORE_TEXT
 
 config ILLEGAL_POINTER_VALUE
        hex
-       default 0 if X86_32
+       default 0xfffff000 if X86_32
        default 0xdead000000000000 if X86_64
 
 source "mm/Kconfig"
@@ -1806,6 +1811,7 @@ source kernel/Kconfig.hz
 config KEXEC
 	bool "kexec system call"
 	select KEXEC_CORE
+	depends on !GRKERNSEC_KMEM
 	---help---
 	  kexec is a system call that implements the ability to shutdown your
 	  current kernel, and to start another kernel.  It is like a reboot
@@ -1988,7 +1994,9 @@ config X86_NEED_RELOCS
 
 config PHYSICAL_ALIGN
 	hex "Alignment value to which kernel should be aligned"
-	default "0x200000"
+	default "0x1000000"
+	range 0x200000 0x1000000 if PAX_KERNEXEC && X86_PAE
+	range 0x400000 0x1000000 if PAX_KERNEXEC && !X86_PAE
 	range 0x2000 0x1000000 if X86_32
 	range 0x200000 0x1000000 if X86_64
 	---help---
@@ -2071,6 +2079,7 @@ config COMPAT_VDSO
 	def_bool n
 	prompt "Disable the 32-bit vDSO (needed for glibc 2.3.3)"
 	depends on X86_32 || IA32_EMULATION
+	depends on !PAX_PAGEEXEC && !PAX_SEGMEXEC && !PAX_KERNEXEC && !PAX_MEMORY_UDEREF
 	---help---
 	  Certain buggy versions of glibc will crash if they are
 	  presented with a 32-bit vDSO that is not mapped at the address
@@ -2111,15 +2120,6 @@ choice
 
 	  If unsure, select "Emulate".
 
-	config LEGACY_VSYSCALL_NATIVE
-		bool "Native"
-		help
-		  Actual executable code is located in the fixed vsyscall
-		  address mapping, implementing time() efficiently. Since
-		  this makes the mapping executable, it can be used during
-		  security vulnerability exploitation (traditionally as
-		  ROP gadgets). This configuration is not recommended.
-
 	config LEGACY_VSYSCALL_EMULATE
 		bool "Emulate"
 		help
@@ -2200,6 +2200,22 @@ config MODIFY_LDT_SYSCALL
 
 	  Saying 'N' here may make sense for embedded or server kernels.
 
+config DEFAULT_MODIFY_LDT_SYSCALL
+	bool "Allow userspace to modify the LDT by default"
+	default y
+
+	---help---
+	  Modifying the LDT (Local Descriptor Table) may be needed to run a
+	  16-bit or segmented code such as Dosemu or Wine. This is done via
+	  a system call which is not needed to run portable applications,
+	  and which can sometimes be abused to exploit some weaknesses of
+	  the architecture, opening new vulnerabilities.
+
+	  For this reason this option allows one to enable or disable the
+	  feature at runtime. It is recommended to say 'N' here to leave
+	  the system protected, and to enable it at runtime only if needed
+	  by setting the sys.kernel.modify_ldt sysctl.
+
 source "kernel/livepatch/Kconfig"
 
 endmenu
diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index 3ba5ff2..44bdacc 100644
--- a/arch/x86/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
@@ -329,7 +329,7 @@ config X86_PPRO_FENCE
 
 config X86_F00F_BUG
 	def_bool y
-	depends on M586MMX || M586TSC || M586 || M486
+	depends on (M586MMX || M586TSC || M586 || M486) && !PAX_KERNEXEC
 
 config X86_INVD_BUG
 	def_bool y
@@ -337,7 +337,7 @@ config X86_INVD_BUG
 
 config X86_ALIGNMENT_16
 	def_bool y
-	depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || MELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
+	depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK8 || MK7 || MK6 || MCORE2 || MPENTIUM4 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
 
 config X86_INTEL_USERCOPY
 	def_bool y
@@ -379,7 +379,7 @@ config X86_CMPXCHG64
 # generates cmov.
 config X86_CMOV
 	def_bool y
-	depends on (MK8 || MK7 || MCORE2 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64 || MATOM || MGEODE_LX)
+	depends on (MK8 || MK7 || MCORE2 || MPSC || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64 || MATOM || MGEODE_LX)
 
 config X86_MINIMUM_CPU_FAMILY
 	int
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 67eec55..1a5c1ab 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -55,6 +55,7 @@ config X86_PTDUMP
 	tristate "Export kernel pagetable layout to userspace via debugfs"
 	depends on DEBUG_KERNEL
 	select DEBUG_FS
+	depends on !GRKERNSEC_KMEM
 	select X86_PTDUMP_CORE
 	---help---
 	  Say Y here if you want to show the kernel pagetable layout in a
@@ -84,6 +85,7 @@ config DEBUG_RODATA_TEST
 
 config DEBUG_WX
 	bool "Warn on W+X mappings at boot"
+	depends on BROKEN
 	select X86_PTDUMP_CORE
 	---help---
 	  Generate a warning if any W+X mappings are found at boot.
@@ -111,7 +113,7 @@ config DEBUG_WX
 
 config DEBUG_SET_MODULE_RONX
 	bool "Set loadable kernel module data as NX and text as RO"
-	depends on MODULES
+	depends on MODULES && BROKEN
 	---help---
 	  This option helps catch unintended modifications to loadable
 	  kernel module's text and read-only data. It also prevents execution
@@ -353,6 +355,7 @@ config X86_DEBUG_FPU
 config PUNIT_ATOM_DEBUG
 	tristate "ATOM Punit debug driver"
 	select DEBUG_FS
+	depends on !GRKERNSEC_KMEM
 	select IOSF_MBI
 	---help---
 	  This is a debug driver, which gets the power states
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 4086abc..52a0a9b 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -75,9 +75,6 @@ ifeq ($(CONFIG_X86_32),y)
         # CPU-specific tuning. Anything which can be shared with UML should go here.
         include arch/x86/Makefile_32.cpu
         KBUILD_CFLAGS += $(cflags-y)
-
-        # temporary until string.h is fixed
-        KBUILD_CFLAGS += -ffreestanding
 else
         BITS := 64
         UTS_MACHINE := x86_64
@@ -126,6 +123,9 @@ else
         KBUILD_CFLAGS += $(call cc-option,-maccumulate-outgoing-args)
 endif
 
+# temporary until string.h is fixed
+KBUILD_CFLAGS += -ffreestanding
+
 # Make sure compiler does not have buggy stack-protector support.
 ifdef CONFIG_CC_STACKPROTECTOR
 	cc_has_sp := $(srctree)/scripts/gcc-x86_$(BITS)-has-stack-protector.sh
@@ -199,6 +199,7 @@ archheaders:
 	$(Q)$(MAKE) $(build)=arch/x86/entry/syscalls all
 
 archprepare:
+	$(if $(LDFLAGS_BUILD_ID),,$(error $(OLD_LD)))
 ifeq ($(CONFIG_KEXEC_FILE),y)
 	$(Q)$(MAKE) $(build)=arch/x86/purgatory arch/x86/purgatory/kexec-purgatory.c
 endif
@@ -284,3 +285,9 @@ define archhelp
   echo  '                  FDARGS="..."  arguments for the booted kernel'
   echo  '                  FDINITRD=file initrd for the booted kernel'
 endef
+
+define OLD_LD
+
+*** ${VERSION}.${PATCHLEVEL} PaX kernels no longer build correctly with old versions of binutils.
+*** Please upgrade your binutils to 2.18 or newer
+endef
diff --git a/arch/x86/boot/bitops.h b/arch/x86/boot/bitops.h
index 878e4b9..20537ab 100644
--- a/arch/x86/boot/bitops.h
+++ b/arch/x86/boot/bitops.h
@@ -26,7 +26,7 @@ static inline int variable_test_bit(int nr, const void *addr)
 	u8 v;
 	const u32 *p = (const u32 *)addr;
 
-	asm("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr));
+	asm volatile("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr));
 	return v;
 }
 
@@ -37,7 +37,7 @@ static inline int variable_test_bit(int nr, const void *addr)
 
 static inline void set_bit(int nr, void *addr)
 {
-	asm("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr));
+	asm volatile("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr));
 }
 
 #endif /* BOOT_BITOPS_H */
diff --git a/arch/x86/boot/boot.h b/arch/x86/boot/boot.h
index 9011a88..06aa820 100644
--- a/arch/x86/boot/boot.h
+++ b/arch/x86/boot/boot.h
@@ -83,7 +83,7 @@ static inline void io_delay(void)
 static inline u16 ds(void)
 {
 	u16 seg;
-	asm("movw %%ds,%0" : "=rm" (seg));
+	asm volatile("movw %%ds,%0" : "=rm" (seg));
 	return seg;
 }
 
diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
index 8774cb2..54bc0df 100644
--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -35,6 +35,23 @@ KBUILD_CFLAGS += -mno-mmx -mno-sse
 KBUILD_CFLAGS += $(call cc-option,-ffreestanding)
 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
 
+ifdef CONFIG_DEBUG_INFO
+ifdef CONFIG_DEBUG_INFO_SPLIT
+KBUILD_CFLAGS   += $(call cc-option, -gsplit-dwarf, -g)
+else
+KBUILD_CFLAGS	+= -g
+endif
+KBUILD_AFLAGS	+= -Wa,--gdwarf-2
+endif
+ifdef CONFIG_DEBUG_INFO_DWARF4
+KBUILD_CFLAGS	+= $(call cc-option, -gdwarf-4,)
+endif
+
+ifdef CONFIG_DEBUG_INFO_REDUCED
+KBUILD_CFLAGS 	+= $(call cc-option, -femit-struct-debug-baseonly) \
+		   $(call cc-option,-fno-var-tracking)
+endif
+
 KBUILD_AFLAGS  := $(KBUILD_CFLAGS) -D__ASSEMBLY__
 GCOV_PROFILE := n
 UBSAN_SANITIZE :=n
diff --git a/arch/x86/boot/compressed/efi_stub_32.S b/arch/x86/boot/compressed/efi_stub_32.S
index a53440e..c3dbf1e 100644
--- a/arch/x86/boot/compressed/efi_stub_32.S
+++ b/arch/x86/boot/compressed/efi_stub_32.S
@@ -46,16 +46,13 @@ ENTRY(efi_call_phys)
 	 * parameter 2, ..., param n. To make things easy, we save the return
 	 * address of efi_call_phys in a global variable.
 	 */
-	popl	%ecx
-	movl	%ecx, saved_return_addr(%edx)
-	/* get the function pointer into ECX*/
-	popl	%ecx
-	movl	%ecx, efi_rt_function_ptr(%edx)
+	popl	saved_return_addr(%edx)
+	popl	efi_rt_function_ptr(%edx)
 
 	/*
 	 * 3. Call the physical function.
 	 */
-	call	*%ecx
+	call	*efi_rt_function_ptr(%edx)
 
 	/*
 	 * 4. Balance the stack. And because EAX contain the return value,
@@ -67,15 +64,12 @@ ENTRY(efi_call_phys)
 1:	popl	%edx
 	subl	$1b, %edx
 
-	movl	efi_rt_function_ptr(%edx), %ecx
-	pushl	%ecx
+	pushl	efi_rt_function_ptr(%edx)
 
 	/*
 	 * 10. Push the saved return address onto the stack and return.
 	 */
-	movl	saved_return_addr(%edx), %ecx
-	pushl	%ecx
-	ret
+	jmpl	*saved_return_addr(%edx)
 ENDPROC(efi_call_phys)
 .previous
 
diff --git a/arch/x86/boot/compressed/efi_thunk_64.S b/arch/x86/boot/compressed/efi_thunk_64.S
index 630384a..278e788 100644
--- a/arch/x86/boot/compressed/efi_thunk_64.S
+++ b/arch/x86/boot/compressed/efi_thunk_64.S
@@ -189,8 +189,8 @@ efi_gdt64:
 	.long	0			/* Filled out by user */
 	.word	0
 	.quad	0x0000000000000000	/* NULL descriptor */
-	.quad	0x00af9a000000ffff	/* __KERNEL_CS */
-	.quad	0x00cf92000000ffff	/* __KERNEL_DS */
+	.quad	0x00af9b000000ffff	/* __KERNEL_CS */
+	.quad	0x00cf93000000ffff	/* __KERNEL_DS */
 	.quad	0x0080890000000000	/* TS descriptor */
 	.quad   0x0000000000000000	/* TS continued */
 efi_gdt64_end:
diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S
index 0256064..bef8bbd 100644
--- a/arch/x86/boot/compressed/head_32.S
+++ b/arch/x86/boot/compressed/head_32.S
@@ -169,10 +169,10 @@ preferred_addr:
 	addl    %eax, %ebx
 	notl	%eax
 	andl    %eax, %ebx
-	cmpl	$LOAD_PHYSICAL_ADDR, %ebx
+	cmpl	$____LOAD_PHYSICAL_ADDR, %ebx
 	jge	1f
 #endif
-	movl	$LOAD_PHYSICAL_ADDR, %ebx
+	movl	$____LOAD_PHYSICAL_ADDR, %ebx
 1:
 
 	/* Target address to relocate to for decompression */
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index 86558a1..32f1e7e 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -103,10 +103,10 @@ ENTRY(startup_32)
 	addl	%eax, %ebx
 	notl	%eax
 	andl	%eax, %ebx
-	cmpl	$LOAD_PHYSICAL_ADDR, %ebx
+	cmpl	$____LOAD_PHYSICAL_ADDR, %ebx
 	jge	1f
 #endif
-	movl	$LOAD_PHYSICAL_ADDR, %ebx
+	movl	$____LOAD_PHYSICAL_ADDR, %ebx
 1:
 
 	/* Target address to relocate to for decompression */
@@ -331,10 +331,10 @@ preferred_addr:
 	addq	%rax, %rbp
 	notq	%rax
 	andq	%rax, %rbp
-	cmpq	$LOAD_PHYSICAL_ADDR, %rbp
+	cmpq	$____LOAD_PHYSICAL_ADDR, %rbp
 	jge	1f
 #endif
-	movq	$LOAD_PHYSICAL_ADDR, %rbp
+	movq	$____LOAD_PHYSICAL_ADDR, %rbp
 1:
 
 	/* Target address to relocate to for decompression */
@@ -443,8 +443,8 @@ gdt:
 	.long	gdt
 	.word	0
 	.quad	0x0000000000000000	/* NULL descriptor */
-	.quad	0x00af9a000000ffff	/* __KERNEL_CS */
-	.quad	0x00cf92000000ffff	/* __KERNEL_DS */
+	.quad	0x00af9b000000ffff	/* __KERNEL_CS */
+	.quad	0x00cf93000000ffff	/* __KERNEL_DS */
 	.quad	0x0080890000000000	/* TS descriptor */
 	.quad   0x0000000000000000	/* TS continued */
 gdt_end:
diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
index 79dac17..1549446 100644
--- a/arch/x86/boot/compressed/misc.c
+++ b/arch/x86/boot/compressed/misc.c
@@ -259,7 +259,7 @@ static void handle_relocations(void *output, unsigned long output_len)
 	 * Calculate the delta between where vmlinux was linked to load
 	 * and where it was actually loaded.
 	 */
-	delta = min_addr - LOAD_PHYSICAL_ADDR;
+	delta = min_addr - ____LOAD_PHYSICAL_ADDR;
 	if (!delta) {
 		debug_putstr("No relocation needed... ");
 		return;
@@ -341,7 +341,7 @@ static void parse_elf(void *output)
 	Elf32_Ehdr ehdr;
 	Elf32_Phdr *phdrs, *phdr;
 #endif
-	void *dest;
+	void *dest, *prev;
 	int i;
 
 	memcpy(&ehdr, output, sizeof(ehdr));
@@ -368,13 +368,16 @@ static void parse_elf(void *output)
 		case PT_LOAD:
 #ifdef CONFIG_RELOCATABLE
 			dest = output;
-			dest += (phdr->p_paddr - LOAD_PHYSICAL_ADDR);
+			dest += (phdr->p_paddr - ____LOAD_PHYSICAL_ADDR);
 #else
 			dest = (void *)(phdr->p_paddr);
 #endif
 			memcpy(dest,
 			       output + phdr->p_offset,
 			       phdr->p_filesz);
+			if (i)
+				memset(prev, 0xff, dest - prev);
+			prev = dest + phdr->p_filesz;
 			break;
 		default: /* Ignore other PT_* */ break;
 		}
@@ -443,7 +446,7 @@ asmlinkage __visible void *decompress_kernel(void *rmode, memptr heap,
 		error("Destination address too large");
 #endif
 #ifndef CONFIG_RELOCATABLE
-	if ((unsigned long)output != LOAD_PHYSICAL_ADDR)
+	if ((unsigned long)output != ____LOAD_PHYSICAL_ADDR)
 		error("Wrong destination address");
 #endif
 
diff --git a/arch/x86/boot/cpucheck.c b/arch/x86/boot/cpucheck.c
index 1fd7d57..0f7d096 100644
--- a/arch/x86/boot/cpucheck.c
+++ b/arch/x86/boot/cpucheck.c
@@ -125,9 +125,9 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr)
 		u32 ecx = MSR_K7_HWCR;
 		u32 eax, edx;
 
-		asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
+		asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
 		eax &= ~(1 << 15);
-		asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
+		asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
 
 		get_cpuflags();	/* Make sure it really did something */
 		err = check_cpuflags();
@@ -140,9 +140,9 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr)
 		u32 ecx = MSR_VIA_FCR;
 		u32 eax, edx;
 
-		asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
+		asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
 		eax |= (1<<1)|(1<<7);
-		asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
+		asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
 
 		set_bit(X86_FEATURE_CX8, cpu.flags);
 		err = check_cpuflags();
@@ -153,12 +153,12 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr)
 		u32 eax, edx;
 		u32 level = 1;
 
-		asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
-		asm("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx));
-		asm("cpuid"
+		asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
+		asm volatile("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx));
+		asm volatile("cpuid"
 		    : "+a" (level), "=d" (cpu.flags[0])
 		    : : "ecx", "ebx");
-		asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
+		asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
 
 		err = check_cpuflags();
 	} else if (err == 0x01 &&
diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S
index 6236b9e..3099904 100644
--- a/arch/x86/boot/header.S
+++ b/arch/x86/boot/header.S
@@ -438,10 +438,14 @@ setup_data:		.quad 0			# 64-bit physical pointer to
 						# single linked list of
 						# struct setup_data
 
-pref_address:		.quad LOAD_PHYSICAL_ADDR	# preferred load addr
+pref_address:		.quad ____LOAD_PHYSICAL_ADDR	# preferred load addr
 
 #define ZO_INIT_SIZE	(ZO__end - ZO_startup_32 + ZO_z_extract_offset)
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+#define VO_INIT_SIZE	(VO__end - VO__text - __PAGE_OFFSET - ____LOAD_PHYSICAL_ADDR)
+#else
 #define VO_INIT_SIZE	(VO__end - VO__text)
+#endif
 #if ZO_INIT_SIZE > VO_INIT_SIZE
 #define INIT_SIZE ZO_INIT_SIZE
 #else
diff --git a/arch/x86/boot/memory.c b/arch/x86/boot/memory.c
index db75d07..8e6d0af 100644
--- a/arch/x86/boot/memory.c
+++ b/arch/x86/boot/memory.c
@@ -19,7 +19,7 @@
 
 static int detect_memory_e820(void)
 {
-	int count = 0;
+	unsigned int count = 0;
 	struct biosregs ireg, oreg;
 	struct e820entry *desc = boot_params.e820_map;
 	static struct e820entry buf; /* static so it is zeroed */
diff --git a/arch/x86/boot/video-vesa.c b/arch/x86/boot/video-vesa.c
index ba3e100..6501b8f 100644
--- a/arch/x86/boot/video-vesa.c
+++ b/arch/x86/boot/video-vesa.c
@@ -201,6 +201,7 @@ static void vesa_store_pm_info(void)
 
 	boot_params.screen_info.vesapm_seg = oreg.es;
 	boot_params.screen_info.vesapm_off = oreg.di;
+	boot_params.screen_info.vesapm_size = oreg.cx;
 }
 
 /*
diff --git a/arch/x86/boot/video.c b/arch/x86/boot/video.c
index 77780e3..86be0cb 100644
--- a/arch/x86/boot/video.c
+++ b/arch/x86/boot/video.c
@@ -100,7 +100,7 @@ static void store_mode_params(void)
 static unsigned int get_entry(void)
 {
 	char entry_buf[4];
-	int i, len = 0;
+	unsigned int i, len = 0;
 	int key;
 	unsigned int v;
 
diff --git a/arch/x86/crypto/aes-x86_64-asm_64.S b/arch/x86/crypto/aes-x86_64-asm_64.S
index 9105655..41779c1 100644
--- a/arch/x86/crypto/aes-x86_64-asm_64.S
+++ b/arch/x86/crypto/aes-x86_64-asm_64.S
@@ -8,6 +8,8 @@
  * including this sentence is retained in full.
  */
 
+#include <asm/alternative-asm.h>
+
 .extern crypto_ft_tab
 .extern crypto_it_tab
 .extern crypto_fl_tab
@@ -70,6 +72,8 @@
 	je	B192;			\
 	leaq	32(r9),r9;
 
+#define ret	pax_force_retaddr; ret
+
 #define epilogue(FUNC,r1,r2,r3,r4,r5,r6,r7,r8,r9) \
 	movq	r1,r2;			\
 	movq	r3,r4;			\
diff --git a/arch/x86/crypto/aesni-intel_asm.S b/arch/x86/crypto/aesni-intel_asm.S
index 383a6f8..a4db591 100644
--- a/arch/x86/crypto/aesni-intel_asm.S
+++ b/arch/x86/crypto/aesni-intel_asm.S
@@ -32,6 +32,7 @@
 #include <linux/linkage.h>
 #include <asm/inst.h>
 #include <asm/frame.h>
+#include <asm/alternative-asm.h>
 
 /*
  * The following macros are used to move an (un)aligned 16 byte value to/from
@@ -218,7 +219,7 @@ enc:        .octa 0x2
 * num_initial_blocks = b mod 4
 * encrypt the initial num_initial_blocks blocks and apply ghash on
 * the ciphertext
-* %r10, %r11, %r12, %rax, %xmm5, %xmm6, %xmm7, %xmm8, %xmm9 registers
+* %r10, %r11, %r15, %rax, %xmm5, %xmm6, %xmm7, %xmm8, %xmm9 registers
 * are clobbered
 * arg1, %arg2, %arg3, %r14 are used as a pointer only, not modified
 */
@@ -228,8 +229,8 @@ enc:        .octa 0x2
 XMM2 XMM3 XMM4 XMMDst TMP6 TMP7 i i_seq operation
         MOVADQ     SHUF_MASK(%rip), %xmm14
 	mov	   arg7, %r10           # %r10 = AAD
-	mov	   arg8, %r12           # %r12 = aadLen
-	mov	   %r12, %r11
+	mov	   arg8, %r15           # %r15 = aadLen
+	mov	   %r15, %r11
 	pxor	   %xmm\i, %xmm\i
 
 _get_AAD_loop\num_initial_blocks\operation:
@@ -238,17 +239,17 @@ _get_AAD_loop\num_initial_blocks\operation:
 	psrldq	   $4, %xmm\i
 	pxor	   \TMP1, %xmm\i
 	add	   $4, %r10
-	sub	   $4, %r12
+	sub	   $4, %r15
 	jne	   _get_AAD_loop\num_initial_blocks\operation
 
 	cmp	   $16, %r11
 	je	   _get_AAD_loop2_done\num_initial_blocks\operation
 
-	mov	   $16, %r12
+	mov	   $16, %r15
 _get_AAD_loop2\num_initial_blocks\operation:
 	psrldq	   $4, %xmm\i
-	sub	   $4, %r12
-	cmp	   %r11, %r12
+	sub	   $4, %r15
+	cmp	   %r11, %r15
 	jne	   _get_AAD_loop2\num_initial_blocks\operation
 
 _get_AAD_loop2_done\num_initial_blocks\operation:
@@ -443,7 +444,7 @@ _initial_blocks_done\num_initial_blocks\operation:
 * num_initial_blocks = b mod 4
 * encrypt the initial num_initial_blocks blocks and apply ghash on
 * the ciphertext
-* %r10, %r11, %r12, %rax, %xmm5, %xmm6, %xmm7, %xmm8, %xmm9 registers
+* %r10, %r11, %r15, %rax, %xmm5, %xmm6, %xmm7, %xmm8, %xmm9 registers
 * are clobbered
 * arg1, %arg2, %arg3, %r14 are used as a pointer only, not modified
 */
@@ -453,8 +454,8 @@ _initial_blocks_done\num_initial_blocks\operation:
 XMM2 XMM3 XMM4 XMMDst TMP6 TMP7 i i_seq operation
         MOVADQ     SHUF_MASK(%rip), %xmm14
 	mov	   arg7, %r10           # %r10 = AAD
-	mov	   arg8, %r12           # %r12 = aadLen
-	mov	   %r12, %r11
+	mov	   arg8, %r15           # %r15 = aadLen
+	mov	   %r15, %r11
 	pxor	   %xmm\i, %xmm\i
 _get_AAD_loop\num_initial_blocks\operation:
 	movd	   (%r10), \TMP1
@@ -462,15 +463,15 @@ _get_AAD_loop\num_initial_blocks\operation:
 	psrldq	   $4, %xmm\i
 	pxor	   \TMP1, %xmm\i
 	add	   $4, %r10
-	sub	   $4, %r12
+	sub	   $4, %r15
 	jne	   _get_AAD_loop\num_initial_blocks\operation
 	cmp	   $16, %r11
 	je	   _get_AAD_loop2_done\num_initial_blocks\operation
-	mov	   $16, %r12
+	mov	   $16, %r15
 _get_AAD_loop2\num_initial_blocks\operation:
 	psrldq	   $4, %xmm\i
-	sub	   $4, %r12
-	cmp	   %r11, %r12
+	sub	   $4, %r15
+	cmp	   %r11, %r15
 	jne	   _get_AAD_loop2\num_initial_blocks\operation
 _get_AAD_loop2_done\num_initial_blocks\operation:
 	PSHUFB_XMM   %xmm14, %xmm\i # byte-reflect the AAD data
@@ -1280,8 +1281,8 @@ _esb_loop_\@:
 * poly = x^128 + x^127 + x^126 + x^121 + 1
 *
 *****************************************************************************/
-ENTRY(aesni_gcm_dec)
-	push	%r12
+RAP_ENTRY(aesni_gcm_dec)
+	push	%r15
 	push	%r13
 	push	%r14
 	mov	%rsp, %r14
@@ -1291,8 +1292,8 @@ ENTRY(aesni_gcm_dec)
 */
 	sub	$VARIABLE_OFFSET, %rsp
 	and	$~63, %rsp                        # align rsp to 64 bytes
-	mov	%arg6, %r12
-	movdqu	(%r12), %xmm13			  # %xmm13 = HashKey
+	mov	%arg6, %r15
+	movdqu	(%r15), %xmm13			  # %xmm13 = HashKey
         movdqa  SHUF_MASK(%rip), %xmm2
 	PSHUFB_XMM %xmm2, %xmm13
 
@@ -1320,10 +1321,10 @@ ENTRY(aesni_gcm_dec)
 	movdqa %xmm13, HashKey(%rsp)           # store HashKey<<1 (mod poly)
 	mov %arg4, %r13    # save the number of bytes of plaintext/ciphertext
 	and $-16, %r13                      # %r13 = %r13 - (%r13 mod 16)
-	mov %r13, %r12
-	and $(3<<4), %r12
+	mov %r13, %r15
+	and $(3<<4), %r15
 	jz _initial_num_blocks_is_0_decrypt
-	cmp $(2<<4), %r12
+	cmp $(2<<4), %r15
 	jb _initial_num_blocks_is_1_decrypt
 	je _initial_num_blocks_is_2_decrypt
 _initial_num_blocks_is_3_decrypt:
@@ -1373,16 +1374,16 @@ _zero_cipher_left_decrypt:
 	sub $16, %r11
 	add %r13, %r11
 	movdqu (%arg3,%r11,1), %xmm1   # receive the last <16 byte block
-	lea SHIFT_MASK+16(%rip), %r12
-	sub %r13, %r12
+	lea SHIFT_MASK+16(%rip), %r15
+	sub %r13, %r15
 # adjust the shuffle mask pointer to be able to shift 16-%r13 bytes
 # (%r13 is the number of bytes in plaintext mod 16)
-	movdqu (%r12), %xmm2           # get the appropriate shuffle mask
+	movdqu (%r15), %xmm2           # get the appropriate shuffle mask
 	PSHUFB_XMM %xmm2, %xmm1            # right shift 16-%r13 butes
 
 	movdqa  %xmm1, %xmm2
 	pxor %xmm1, %xmm0            # Ciphertext XOR E(K, Yn)
-	movdqu ALL_F-SHIFT_MASK(%r12), %xmm1
+	movdqu ALL_F-SHIFT_MASK(%r15), %xmm1
 	# get the appropriate mask to mask out top 16-%r13 bytes of %xmm0
 	pand %xmm1, %xmm0            # mask out top 16-%r13 bytes of %xmm0
 	pand    %xmm1, %xmm2
@@ -1411,9 +1412,9 @@ _less_than_8_bytes_left_decrypt:
 	sub	$1, %r13
 	jne	_less_than_8_bytes_left_decrypt
 _multiple_of_16_bytes_decrypt:
-	mov	arg8, %r12		  # %r13 = aadLen (number of bytes)
-	shl	$3, %r12		  # convert into number of bits
-	movd	%r12d, %xmm15		  # len(A) in %xmm15
+	mov	arg8, %r15		  # %r13 = aadLen (number of bytes)
+	shl	$3, %r15		  # convert into number of bits
+	movd	%r15d, %xmm15		  # len(A) in %xmm15
 	shl	$3, %arg4		  # len(C) in bits (*128)
 	MOVQ_R64_XMM	%arg4, %xmm1
 	pslldq	$8, %xmm15		  # %xmm15 = len(A)||0x0000000000000000
@@ -1452,7 +1453,8 @@ _return_T_done_decrypt:
 	mov	%r14, %rsp
 	pop	%r14
 	pop	%r13
-	pop	%r12
+	pop	%r15
+	pax_force_retaddr
 	ret
 ENDPROC(aesni_gcm_dec)
 
@@ -1540,8 +1542,8 @@ ENDPROC(aesni_gcm_dec)
 *
 * poly = x^128 + x^127 + x^126 + x^121 + 1
 ***************************************************************************/
-ENTRY(aesni_gcm_enc)
-	push	%r12
+RAP_ENTRY(aesni_gcm_enc)
+	push	%r15
 	push	%r13
 	push	%r14
 	mov	%rsp, %r14
@@ -1551,8 +1553,8 @@ ENTRY(aesni_gcm_enc)
 #
 	sub	$VARIABLE_OFFSET, %rsp
 	and	$~63, %rsp
-	mov	%arg6, %r12
-	movdqu	(%r12), %xmm13
+	mov	%arg6, %r15
+	movdqu	(%r15), %xmm13
         movdqa  SHUF_MASK(%rip), %xmm2
 	PSHUFB_XMM %xmm2, %xmm13
 
@@ -1576,13 +1578,13 @@ ENTRY(aesni_gcm_enc)
 	movdqa	%xmm13, HashKey(%rsp)
 	mov	%arg4, %r13            # %xmm13 holds HashKey<<1 (mod poly)
 	and	$-16, %r13
-	mov	%r13, %r12
+	mov	%r13, %r15
 
         # Encrypt first few blocks
 
-	and	$(3<<4), %r12
+	and	$(3<<4), %r15
 	jz	_initial_num_blocks_is_0_encrypt
-	cmp	$(2<<4), %r12
+	cmp	$(2<<4), %r15
 	jb	_initial_num_blocks_is_1_encrypt
 	je	_initial_num_blocks_is_2_encrypt
 _initial_num_blocks_is_3_encrypt:
@@ -1635,14 +1637,14 @@ _zero_cipher_left_encrypt:
 	sub $16, %r11
 	add %r13, %r11
 	movdqu (%arg3,%r11,1), %xmm1     # receive the last <16 byte blocks
-	lea SHIFT_MASK+16(%rip), %r12
-	sub %r13, %r12
+	lea SHIFT_MASK+16(%rip), %r15
+	sub %r13, %r15
 	# adjust the shuffle mask pointer to be able to shift 16-r13 bytes
 	# (%r13 is the number of bytes in plaintext mod 16)
-	movdqu	(%r12), %xmm2           # get the appropriate shuffle mask
+	movdqu	(%r15), %xmm2           # get the appropriate shuffle mask
 	PSHUFB_XMM	%xmm2, %xmm1            # shift right 16-r13 byte
 	pxor	%xmm1, %xmm0            # Plaintext XOR Encrypt(K, Yn)
-	movdqu	ALL_F-SHIFT_MASK(%r12), %xmm1
+	movdqu	ALL_F-SHIFT_MASK(%r15), %xmm1
 	# get the appropriate mask to mask out top 16-r13 bytes of xmm0
 	pand	%xmm1, %xmm0            # mask out top 16-r13 bytes of xmm0
         movdqa SHUF_MASK(%rip), %xmm10
@@ -1675,9 +1677,9 @@ _less_than_8_bytes_left_encrypt:
 	sub $1, %r13
 	jne _less_than_8_bytes_left_encrypt
 _multiple_of_16_bytes_encrypt:
-	mov	arg8, %r12    # %r12 = addLen (number of bytes)
-	shl	$3, %r12
-	movd	%r12d, %xmm15       # len(A) in %xmm15
+	mov	arg8, %r15    # %r15 = addLen (number of bytes)
+	shl	$3, %r15
+	movd	%r15d, %xmm15       # len(A) in %xmm15
 	shl	$3, %arg4               # len(C) in bits (*128)
 	MOVQ_R64_XMM	%arg4, %xmm1
 	pslldq	$8, %xmm15          # %xmm15 = len(A)||0x0000000000000000
@@ -1716,7 +1718,8 @@ _return_T_done_encrypt:
 	mov	%r14, %rsp
 	pop	%r14
 	pop	%r13
-	pop	%r12
+	pop	%r15
+	pax_force_retaddr
 	ret
 ENDPROC(aesni_gcm_enc)
 
@@ -1734,6 +1737,7 @@ _key_expansion_256a:
 	pxor %xmm1, %xmm0
 	movaps %xmm0, (TKEYP)
 	add $0x10, TKEYP
+	pax_force_retaddr
 	ret
 ENDPROC(_key_expansion_128)
 ENDPROC(_key_expansion_256a)
@@ -1760,6 +1764,7 @@ _key_expansion_192a:
 	shufps $0b01001110, %xmm2, %xmm1
 	movaps %xmm1, 0x10(TKEYP)
 	add $0x20, TKEYP
+	pax_force_retaddr
 	ret
 ENDPROC(_key_expansion_192a)
 
@@ -1780,6 +1785,7 @@ _key_expansion_192b:
 
 	movaps %xmm0, (TKEYP)
 	add $0x10, TKEYP
+	pax_force_retaddr
 	ret
 ENDPROC(_key_expansion_192b)
 
@@ -1793,6 +1799,7 @@ _key_expansion_256b:
 	pxor %xmm1, %xmm2
 	movaps %xmm2, (TKEYP)
 	add $0x10, TKEYP
+	pax_force_retaddr
 	ret
 ENDPROC(_key_expansion_256b)
 
@@ -1908,13 +1915,14 @@ ENTRY(aesni_set_key)
 	popl KEYP
 #endif
 	FRAME_END
+	pax_force_retaddr
 	ret
 ENDPROC(aesni_set_key)
 
 /*
  * void aesni_enc(struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
  */
-ENTRY(aesni_enc)
+RAP_ENTRY(aesni_enc)
 	FRAME_BEGIN
 #ifndef __x86_64__
 	pushl KEYP
@@ -1932,6 +1940,7 @@ ENTRY(aesni_enc)
 	popl KEYP
 #endif
 	FRAME_END
+	pax_force_retaddr
 	ret
 ENDPROC(aesni_enc)
 
@@ -1990,6 +1999,7 @@ _aesni_enc1:
 	AESENC KEY STATE
 	movaps 0x70(TKEYP), KEY
 	AESENCLAST KEY STATE
+	pax_force_retaddr
 	ret
 ENDPROC(_aesni_enc1)
 
@@ -2099,13 +2109,14 @@ _aesni_enc4:
 	AESENCLAST KEY STATE2
 	AESENCLAST KEY STATE3
 	AESENCLAST KEY STATE4
+	pax_force_retaddr
 	ret
 ENDPROC(_aesni_enc4)
 
 /*
  * void aesni_dec (struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
  */
-ENTRY(aesni_dec)
+RAP_ENTRY(aesni_dec)
 	FRAME_BEGIN
 #ifndef __x86_64__
 	pushl KEYP
@@ -2124,6 +2135,7 @@ ENTRY(aesni_dec)
 	popl KEYP
 #endif
 	FRAME_END
+	pax_force_retaddr
 	ret
 ENDPROC(aesni_dec)
 
@@ -2182,6 +2194,7 @@ _aesni_dec1:
 	AESDEC KEY STATE
 	movaps 0x70(TKEYP), KEY
 	AESDECLAST KEY STATE
+	pax_force_retaddr
 	ret
 ENDPROC(_aesni_dec1)
 
@@ -2291,6 +2304,7 @@ _aesni_dec4:
 	AESDECLAST KEY STATE2
 	AESDECLAST KEY STATE3
 	AESDECLAST KEY STATE4
+	pax_force_retaddr
 	ret
 ENDPROC(_aesni_dec4)
 
@@ -2351,6 +2365,7 @@ ENTRY(aesni_ecb_enc)
 	popl LEN
 #endif
 	FRAME_END
+	pax_force_retaddr
 	ret
 ENDPROC(aesni_ecb_enc)
 
@@ -2412,6 +2427,7 @@ ENTRY(aesni_ecb_dec)
 	popl LEN
 #endif
 	FRAME_END
+	pax_force_retaddr
 	ret
 ENDPROC(aesni_ecb_dec)
 
@@ -2456,6 +2472,7 @@ ENTRY(aesni_cbc_enc)
 	popl IVP
 #endif
 	FRAME_END
+	pax_force_retaddr
 	ret
 ENDPROC(aesni_cbc_enc)
 
@@ -2549,6 +2566,7 @@ ENTRY(aesni_cbc_dec)
 	popl IVP
 #endif
 	FRAME_END
+	pax_force_retaddr
 	ret
 ENDPROC(aesni_cbc_dec)
 
@@ -2578,6 +2596,7 @@ _aesni_inc_init:
 	mov $1, TCTR_LOW
 	MOVQ_R64_XMM TCTR_LOW INC
 	MOVQ_R64_XMM CTR TCTR_LOW
+	pax_force_retaddr
 	ret
 ENDPROC(_aesni_inc_init)
 
@@ -2607,6 +2626,7 @@ _aesni_inc:
 .Linc_low:
 	movaps CTR, IV
 	PSHUFB_XMM BSWAP_MASK IV
+	pax_force_retaddr
 	ret
 ENDPROC(_aesni_inc)
 
@@ -2614,7 +2634,7 @@ ENDPROC(_aesni_inc)
  * void aesni_ctr_enc(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
  *		      size_t len, u8 *iv)
  */
-ENTRY(aesni_ctr_enc)
+RAP_ENTRY(aesni_ctr_enc)
 	FRAME_BEGIN
 	cmp $16, LEN
 	jb .Lctr_enc_just_ret
@@ -2670,6 +2690,7 @@ ENTRY(aesni_ctr_enc)
 	movups IV, (IVP)
 .Lctr_enc_just_ret:
 	FRAME_END
+	pax_force_retaddr
 	ret
 ENDPROC(aesni_ctr_enc)
 
@@ -2798,6 +2819,7 @@ ENTRY(aesni_xts_crypt8)
 	movdqu STATE4, 0x70(OUTP)
 
 	FRAME_END
+	pax_force_retaddr
 	ret
 ENDPROC(aesni_xts_crypt8)
 
diff --git a/arch/x86/crypto/aesni-intel_glue.c b/arch/x86/crypto/aesni-intel_glue.c
index 064c7e2..df15412 100644
--- a/arch/x86/crypto/aesni-intel_glue.c
+++ b/arch/x86/crypto/aesni-intel_glue.c
@@ -82,9 +82,9 @@ struct aesni_xts_ctx {
 
 asmlinkage int aesni_set_key(struct crypto_aes_ctx *ctx, const u8 *in_key,
 			     unsigned int key_len);
-asmlinkage void aesni_enc(struct crypto_aes_ctx *ctx, u8 *out,
+asmlinkage void aesni_enc(void *ctx, u8 *out,
 			  const u8 *in);
-asmlinkage void aesni_dec(struct crypto_aes_ctx *ctx, u8 *out,
+asmlinkage void aesni_dec(void *ctx, u8 *out,
 			  const u8 *in);
 asmlinkage void aesni_ecb_enc(struct crypto_aes_ctx *ctx, u8 *out,
 			      const u8 *in, unsigned int len);
diff --git a/arch/x86/crypto/blowfish-x86_64-asm_64.S b/arch/x86/crypto/blowfish-x86_64-asm_64.S
index 246c670..4fb7603 100644
--- a/arch/x86/crypto/blowfish-x86_64-asm_64.S
+++ b/arch/x86/crypto/blowfish-x86_64-asm_64.S
@@ -21,6 +21,7 @@
  */
 
 #include <linux/linkage.h>
+#include <asm/alternative-asm.h>
 
 .file "blowfish-x86_64-asm.S"
 .text
@@ -149,13 +150,15 @@ ENTRY(__blowfish_enc_blk)
 	jnz .L__enc_xor;
 
 	write_block();
+	pax_force_retaddr
 	ret;
 .L__enc_xor:
 	xor_block();
+	pax_force_retaddr
 	ret;
 ENDPROC(__blowfish_enc_blk)
 
-ENTRY(blowfish_dec_blk)
+RAP_ENTRY(blowfish_dec_blk)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -183,6 +186,7 @@ ENTRY(blowfish_dec_blk)
 
 	movq %r11, %rbp;
 
+	pax_force_retaddr
 	ret;
 ENDPROC(blowfish_dec_blk)
 
@@ -334,6 +338,7 @@ ENTRY(__blowfish_enc_blk_4way)
 
 	popq %rbx;
 	popq %rbp;
+	pax_force_retaddr
 	ret;
 
 .L__enc_xor4:
@@ -341,10 +346,11 @@ ENTRY(__blowfish_enc_blk_4way)
 
 	popq %rbx;
 	popq %rbp;
+	pax_force_retaddr
 	ret;
 ENDPROC(__blowfish_enc_blk_4way)
 
-ENTRY(blowfish_dec_blk_4way)
+RAP_ENTRY(blowfish_dec_blk_4way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -375,5 +381,6 @@ ENTRY(blowfish_dec_blk_4way)
 	popq %rbx;
 	popq %rbp;
 
+	pax_force_retaddr
 	ret;
 ENDPROC(blowfish_dec_blk_4way)
diff --git a/arch/x86/crypto/camellia-aesni-avx-asm_64.S b/arch/x86/crypto/camellia-aesni-avx-asm_64.S
index aa9e8bd..0b8def4 100644
--- a/arch/x86/crypto/camellia-aesni-avx-asm_64.S
+++ b/arch/x86/crypto/camellia-aesni-avx-asm_64.S
@@ -17,6 +17,7 @@
 
 #include <linux/linkage.h>
 #include <asm/frame.h>
+#include <asm/alternative-asm.h>
 
 #define CAMELLIA_TABLE_BYTE_LEN 272
 
@@ -192,6 +193,7 @@ roundsm16_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd:
 	roundsm16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
 		  %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, %xmm15,
 		  %rcx, (%r9));
+	pax_force_retaddr
 	ret;
 ENDPROC(roundsm16_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
 
@@ -200,6 +202,7 @@ roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab:
 	roundsm16(%xmm4, %xmm5, %xmm6, %xmm7, %xmm0, %xmm1, %xmm2, %xmm3,
 		  %xmm12, %xmm13, %xmm14, %xmm15, %xmm8, %xmm9, %xmm10, %xmm11,
 		  %rax, (%r9));
+	pax_force_retaddr
 	ret;
 ENDPROC(roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
 
@@ -783,6 +786,7 @@ __camellia_enc_blk16:
 		    %xmm15, (key_table)(CTX, %r8, 8), (%rax), 1 * 16(%rax));
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 
 .align 8
@@ -870,6 +874,7 @@ __camellia_dec_blk16:
 		    %xmm15, (key_table)(CTX), (%rax), 1 * 16(%rax));
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 
 .align 8
@@ -889,7 +894,7 @@ __camellia_dec_blk16:
 	jmp .Ldec_max24;
 ENDPROC(__camellia_dec_blk16)
 
-ENTRY(camellia_ecb_enc_16way)
+RAP_ENTRY(camellia_ecb_enc_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (16 blocks)
@@ -911,10 +916,11 @@ ENTRY(camellia_ecb_enc_16way)
 		     %xmm8, %rsi);
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(camellia_ecb_enc_16way)
 
-ENTRY(camellia_ecb_dec_16way)
+RAP_ENTRY(camellia_ecb_dec_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (16 blocks)
@@ -941,10 +947,11 @@ ENTRY(camellia_ecb_dec_16way)
 		     %xmm8, %rsi);
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(camellia_ecb_dec_16way)
 
-ENTRY(camellia_cbc_dec_16way)
+RAP_ENTRY(camellia_cbc_dec_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (16 blocks)
@@ -992,6 +999,7 @@ ENTRY(camellia_cbc_dec_16way)
 		     %xmm8, %rsi);
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(camellia_cbc_dec_16way)
 
@@ -1001,7 +1009,7 @@ ENDPROC(camellia_cbc_dec_16way)
 	vpslldq $8, tmp, tmp; \
 	vpsubq tmp, x, x;
 
-ENTRY(camellia_ctr_16way)
+RAP_ENTRY(camellia_ctr_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (16 blocks)
@@ -1105,6 +1113,7 @@ ENTRY(camellia_ctr_16way)
 		     %xmm8, %rsi);
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(camellia_ctr_16way)
 
@@ -1249,10 +1258,11 @@ camellia_xts_crypt_16way:
 		     %xmm8, %rsi);
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(camellia_xts_crypt_16way)
 
-ENTRY(camellia_xts_enc_16way)
+RAP_ENTRY(camellia_xts_enc_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (16 blocks)
@@ -1266,7 +1276,7 @@ ENTRY(camellia_xts_enc_16way)
 	jmp camellia_xts_crypt_16way;
 ENDPROC(camellia_xts_enc_16way)
 
-ENTRY(camellia_xts_dec_16way)
+RAP_ENTRY(camellia_xts_dec_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (16 blocks)
diff --git a/arch/x86/crypto/camellia-aesni-avx2-asm_64.S b/arch/x86/crypto/camellia-aesni-avx2-asm_64.S
index 16186c1..3468f83 100644
--- a/arch/x86/crypto/camellia-aesni-avx2-asm_64.S
+++ b/arch/x86/crypto/camellia-aesni-avx2-asm_64.S
@@ -12,6 +12,7 @@
 
 #include <linux/linkage.h>
 #include <asm/frame.h>
+#include <asm/alternative-asm.h>
 
 #define CAMELLIA_TABLE_BYTE_LEN 272
 
@@ -231,6 +232,7 @@ roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd:
 	roundsm32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
 		  %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, %ymm15,
 		  %rcx, (%r9));
+	pax_force_retaddr
 	ret;
 ENDPROC(roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
 
@@ -239,6 +241,7 @@ roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab:
 	roundsm32(%ymm4, %ymm5, %ymm6, %ymm7, %ymm0, %ymm1, %ymm2, %ymm3,
 		  %ymm12, %ymm13, %ymm14, %ymm15, %ymm8, %ymm9, %ymm10, %ymm11,
 		  %rax, (%r9));
+	pax_force_retaddr
 	ret;
 ENDPROC(roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
 
@@ -823,6 +826,7 @@ __camellia_enc_blk32:
 		    %ymm15, (key_table)(CTX, %r8, 8), (%rax), 1 * 32(%rax));
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 
 .align 8
@@ -910,6 +914,7 @@ __camellia_dec_blk32:
 		    %ymm15, (key_table)(CTX), (%rax), 1 * 32(%rax));
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 
 .align 8
@@ -929,7 +934,7 @@ __camellia_dec_blk32:
 	jmp .Ldec_max24;
 ENDPROC(__camellia_dec_blk32)
 
-ENTRY(camellia_ecb_enc_32way)
+RAP_ENTRY(camellia_ecb_enc_32way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (32 blocks)
@@ -955,10 +960,11 @@ ENTRY(camellia_ecb_enc_32way)
 	vzeroupper;
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(camellia_ecb_enc_32way)
 
-ENTRY(camellia_ecb_dec_32way)
+RAP_ENTRY(camellia_ecb_dec_32way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (32 blocks)
@@ -989,10 +995,11 @@ ENTRY(camellia_ecb_dec_32way)
 	vzeroupper;
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(camellia_ecb_dec_32way)
 
-ENTRY(camellia_cbc_dec_32way)
+RAP_ENTRY(camellia_cbc_dec_32way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (32 blocks)
@@ -1057,6 +1064,7 @@ ENTRY(camellia_cbc_dec_32way)
 	vzeroupper;
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(camellia_cbc_dec_32way)
 
@@ -1074,7 +1082,7 @@ ENDPROC(camellia_cbc_dec_32way)
 	vpslldq $8, tmp1, tmp1; \
 	vpsubq tmp1, x, x;
 
-ENTRY(camellia_ctr_32way)
+RAP_ENTRY(camellia_ctr_32way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (32 blocks)
@@ -1197,6 +1205,7 @@ ENTRY(camellia_ctr_32way)
 	vzeroupper;
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(camellia_ctr_32way)
 
@@ -1364,10 +1373,11 @@ camellia_xts_crypt_32way:
 	vzeroupper;
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(camellia_xts_crypt_32way)
 
-ENTRY(camellia_xts_enc_32way)
+RAP_ENTRY(camellia_xts_enc_32way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (32 blocks)
@@ -1382,7 +1392,7 @@ ENTRY(camellia_xts_enc_32way)
 	jmp camellia_xts_crypt_32way;
 ENDPROC(camellia_xts_enc_32way)
 
-ENTRY(camellia_xts_dec_32way)
+RAP_ENTRY(camellia_xts_dec_32way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (32 blocks)
diff --git a/arch/x86/crypto/camellia-x86_64-asm_64.S b/arch/x86/crypto/camellia-x86_64-asm_64.S
index 310319c..9253a8f 100644
--- a/arch/x86/crypto/camellia-x86_64-asm_64.S
+++ b/arch/x86/crypto/camellia-x86_64-asm_64.S
@@ -21,6 +21,7 @@
  */
 
 #include <linux/linkage.h>
+#include <asm/alternative-asm.h>
 
 .file "camellia-x86_64-asm_64.S"
 .text
@@ -228,16 +229,18 @@ ENTRY(__camellia_enc_blk)
 	enc_outunpack(mov, RT1);
 
 	movq RRBP, %rbp;
+	pax_force_retaddr
 	ret;
 
 .L__enc_xor:
 	enc_outunpack(xor, RT1);
 
 	movq RRBP, %rbp;
+	pax_force_retaddr
 	ret;
 ENDPROC(__camellia_enc_blk)
 
-ENTRY(camellia_dec_blk)
+RAP_ENTRY(camellia_dec_blk)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -272,6 +275,7 @@ ENTRY(camellia_dec_blk)
 	dec_outunpack();
 
 	movq RRBP, %rbp;
+	pax_force_retaddr
 	ret;
 ENDPROC(camellia_dec_blk)
 
@@ -463,6 +467,7 @@ ENTRY(__camellia_enc_blk_2way)
 
 	movq RRBP, %rbp;
 	popq %rbx;
+	pax_force_retaddr
 	ret;
 
 .L__enc2_xor:
@@ -470,10 +475,11 @@ ENTRY(__camellia_enc_blk_2way)
 
 	movq RRBP, %rbp;
 	popq %rbx;
+	pax_force_retaddr
 	ret;
 ENDPROC(__camellia_enc_blk_2way)
 
-ENTRY(camellia_dec_blk_2way)
+RAP_ENTRY(camellia_dec_blk_2way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -510,5 +516,6 @@ ENTRY(camellia_dec_blk_2way)
 
 	movq RRBP, %rbp;
 	movq RXOR, %rbx;
+	pax_force_retaddr
 	ret;
 ENDPROC(camellia_dec_blk_2way)
diff --git a/arch/x86/crypto/camellia_aesni_avx2_glue.c b/arch/x86/crypto/camellia_aesni_avx2_glue.c
index d844569..edaf489 100644
--- a/arch/x86/crypto/camellia_aesni_avx2_glue.c
+++ b/arch/x86/crypto/camellia_aesni_avx2_glue.c
@@ -27,20 +27,20 @@
 #define CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS 32
 
 /* 32-way AVX2/AES-NI parallel cipher functions */
-asmlinkage void camellia_ecb_enc_32way(struct camellia_ctx *ctx, u8 *dst,
+asmlinkage void camellia_ecb_enc_32way(void *ctx, u8 *dst,
 				       const u8 *src);
-asmlinkage void camellia_ecb_dec_32way(struct camellia_ctx *ctx, u8 *dst,
+asmlinkage void camellia_ecb_dec_32way(void *ctx, u8 *dst,
 				       const u8 *src);
 
-asmlinkage void camellia_cbc_dec_32way(struct camellia_ctx *ctx, u8 *dst,
+asmlinkage void camellia_cbc_dec_32way(void *ctx, u8 *dst,
 				       const u8 *src);
-asmlinkage void camellia_ctr_32way(struct camellia_ctx *ctx, u8 *dst,
-				   const u8 *src, le128 *iv);
+asmlinkage void camellia_ctr_32way(void *ctx, u128 *dst,
+				   const u128 *src, le128 *iv);
 
-asmlinkage void camellia_xts_enc_32way(struct camellia_ctx *ctx, u8 *dst,
-				       const u8 *src, le128 *iv);
-asmlinkage void camellia_xts_dec_32way(struct camellia_ctx *ctx, u8 *dst,
-				       const u8 *src, le128 *iv);
+asmlinkage void camellia_xts_enc_32way(void *ctx, u128 *dst,
+				       const u128 *src, le128 *iv);
+asmlinkage void camellia_xts_dec_32way(void *ctx, u128 *dst,
+				       const u128 *src, le128 *iv);
 
 static const struct common_glue_ctx camellia_enc = {
 	.num_funcs = 4,
diff --git a/arch/x86/crypto/camellia_aesni_avx_glue.c b/arch/x86/crypto/camellia_aesni_avx_glue.c
index 93d8f29..4218a74 100644
--- a/arch/x86/crypto/camellia_aesni_avx_glue.c
+++ b/arch/x86/crypto/camellia_aesni_avx_glue.c
@@ -26,28 +26,28 @@
 #define CAMELLIA_AESNI_PARALLEL_BLOCKS 16
 
 /* 16-way parallel cipher functions (avx/aes-ni) */
-asmlinkage void camellia_ecb_enc_16way(struct camellia_ctx *ctx, u8 *dst,
+asmlinkage void camellia_ecb_enc_16way(void *ctx, u8 *dst,
 				       const u8 *src);
 EXPORT_SYMBOL_GPL(camellia_ecb_enc_16way);
 
-asmlinkage void camellia_ecb_dec_16way(struct camellia_ctx *ctx, u8 *dst,
+asmlinkage void camellia_ecb_dec_16way(void *ctx, u8 *dst,
 				       const u8 *src);
 EXPORT_SYMBOL_GPL(camellia_ecb_dec_16way);
 
-asmlinkage void camellia_cbc_dec_16way(struct camellia_ctx *ctx, u8 *dst,
+asmlinkage void camellia_cbc_dec_16way(void *ctx, u8 *dst,
 				       const u8 *src);
 EXPORT_SYMBOL_GPL(camellia_cbc_dec_16way);
 
-asmlinkage void camellia_ctr_16way(struct camellia_ctx *ctx, u8 *dst,
-				   const u8 *src, le128 *iv);
+asmlinkage void camellia_ctr_16way(void *ctx, u128 *dst,
+				   const u128 *src, le128 *iv);
 EXPORT_SYMBOL_GPL(camellia_ctr_16way);
 
-asmlinkage void camellia_xts_enc_16way(struct camellia_ctx *ctx, u8 *dst,
-				       const u8 *src, le128 *iv);
+asmlinkage void camellia_xts_enc_16way(void *ctx, u128 *dst,
+				       const u128 *src, le128 *iv);
 EXPORT_SYMBOL_GPL(camellia_xts_enc_16way);
 
-asmlinkage void camellia_xts_dec_16way(struct camellia_ctx *ctx, u8 *dst,
-				       const u8 *src, le128 *iv);
+asmlinkage void camellia_xts_dec_16way(void *ctx, u128 *dst,
+				       const u128 *src, le128 *iv);
 EXPORT_SYMBOL_GPL(camellia_xts_dec_16way);
 
 void camellia_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv)
diff --git a/arch/x86/crypto/camellia_glue.c b/arch/x86/crypto/camellia_glue.c
index aa76cad..ffd8808 100644
--- a/arch/x86/crypto/camellia_glue.c
+++ b/arch/x86/crypto/camellia_glue.c
@@ -39,7 +39,7 @@
 asmlinkage void __camellia_enc_blk(struct camellia_ctx *ctx, u8 *dst,
 				   const u8 *src, bool xor);
 EXPORT_SYMBOL_GPL(__camellia_enc_blk);
-asmlinkage void camellia_dec_blk(struct camellia_ctx *ctx, u8 *dst,
+asmlinkage void camellia_dec_blk(void *ctx, u8 *dst,
 				 const u8 *src);
 EXPORT_SYMBOL_GPL(camellia_dec_blk);
 
@@ -47,7 +47,7 @@ EXPORT_SYMBOL_GPL(camellia_dec_blk);
 asmlinkage void __camellia_enc_blk_2way(struct camellia_ctx *ctx, u8 *dst,
 					const u8 *src, bool xor);
 EXPORT_SYMBOL_GPL(__camellia_enc_blk_2way);
-asmlinkage void camellia_dec_blk_2way(struct camellia_ctx *ctx, u8 *dst,
+asmlinkage void camellia_dec_blk_2way(void *ctx, u8 *dst,
 				      const u8 *src);
 EXPORT_SYMBOL_GPL(camellia_dec_blk_2way);
 
@@ -1279,8 +1279,10 @@ static int camellia_setkey(struct crypto_tfm *tfm, const u8 *in_key,
 				 &tfm->crt_flags);
 }
 
-void camellia_decrypt_cbc_2way(void *ctx, u128 *dst, const u128 *src)
+void camellia_decrypt_cbc_2way(void *ctx, u8 *_dst, const u8 *_src)
 {
+	u128 *dst = (u128 *)_dst;
+	u128 *src = (u128 *)_src;
 	u128 iv = *src;
 
 	camellia_dec_blk_2way(ctx, (u8 *)dst, (u8 *)src);
diff --git a/arch/x86/crypto/cast5-avx-x86_64-asm_64.S b/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
index 14fa196..5de8a4a 100644
--- a/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
+++ b/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
@@ -25,6 +25,7 @@
 
 #include <linux/linkage.h>
 #include <asm/frame.h>
+#include <asm/alternative-asm.h>
 
 .file "cast5-avx-x86_64-asm_64.S"
 
@@ -282,6 +283,7 @@ __cast5_enc_blk16:
 	outunpack_blocks(RR3, RL3, RTMP, RX, RKM);
 	outunpack_blocks(RR4, RL4, RTMP, RX, RKM);
 
+	pax_force_retaddr
 	ret;
 ENDPROC(__cast5_enc_blk16)
 
@@ -353,6 +355,7 @@ __cast5_dec_blk16:
 	outunpack_blocks(RR3, RL3, RTMP, RX, RKM);
 	outunpack_blocks(RR4, RL4, RTMP, RX, RKM);
 
+	pax_force_retaddr
 	ret;
 
 .L__skip_dec:
@@ -360,7 +363,7 @@ __cast5_dec_blk16:
 	jmp .L__dec_tail;
 ENDPROC(__cast5_dec_blk16)
 
-ENTRY(cast5_ecb_enc_16way)
+RAP_ENTRY(cast5_ecb_enc_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -391,10 +394,11 @@ ENTRY(cast5_ecb_enc_16way)
 	vmovdqu RL4, (7*4*4)(%r11);
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(cast5_ecb_enc_16way)
 
-ENTRY(cast5_ecb_dec_16way)
+RAP_ENTRY(cast5_ecb_dec_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -425,6 +429,7 @@ ENTRY(cast5_ecb_dec_16way)
 	vmovdqu RL4, (7*4*4)(%r11);
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(cast5_ecb_dec_16way)
 
@@ -436,10 +441,10 @@ ENTRY(cast5_cbc_dec_16way)
 	 */
 	FRAME_BEGIN
 
-	pushq %r12;
+	pushq %r14;
 
 	movq %rsi, %r11;
-	movq %rdx, %r12;
+	movq %rdx, %r14;
 
 	vmovdqu (0*16)(%rdx), RL1;
 	vmovdqu (1*16)(%rdx), RR1;
@@ -453,16 +458,16 @@ ENTRY(cast5_cbc_dec_16way)
 	call __cast5_dec_blk16;
 
 	/* xor with src */
-	vmovq (%r12), RX;
+	vmovq (%r14), RX;
 	vpshufd $0x4f, RX, RX;
 	vpxor RX, RR1, RR1;
-	vpxor 0*16+8(%r12), RL1, RL1;
-	vpxor 1*16+8(%r12), RR2, RR2;
-	vpxor 2*16+8(%r12), RL2, RL2;
-	vpxor 3*16+8(%r12), RR3, RR3;
-	vpxor 4*16+8(%r12), RL3, RL3;
-	vpxor 5*16+8(%r12), RR4, RR4;
-	vpxor 6*16+8(%r12), RL4, RL4;
+	vpxor 0*16+8(%r14), RL1, RL1;
+	vpxor 1*16+8(%r14), RR2, RR2;
+	vpxor 2*16+8(%r14), RL2, RL2;
+	vpxor 3*16+8(%r14), RR3, RR3;
+	vpxor 4*16+8(%r14), RL3, RL3;
+	vpxor 5*16+8(%r14), RR4, RR4;
+	vpxor 6*16+8(%r14), RL4, RL4;
 
 	vmovdqu RR1, (0*16)(%r11);
 	vmovdqu RL1, (1*16)(%r11);
@@ -473,9 +478,10 @@ ENTRY(cast5_cbc_dec_16way)
 	vmovdqu RR4, (6*16)(%r11);
 	vmovdqu RL4, (7*16)(%r11);
 
-	popq %r12;
+	popq %r14;
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(cast5_cbc_dec_16way)
 
@@ -488,10 +494,10 @@ ENTRY(cast5_ctr_16way)
 	 */
 	FRAME_BEGIN
 
-	pushq %r12;
+	pushq %r14;
 
 	movq %rsi, %r11;
-	movq %rdx, %r12;
+	movq %rdx, %r14;
 
 	vpcmpeqd RTMP, RTMP, RTMP;
 	vpsrldq $8, RTMP, RTMP; /* low: -1, high: 0 */
@@ -531,14 +537,14 @@ ENTRY(cast5_ctr_16way)
 	call __cast5_enc_blk16;
 
 	/* dst = src ^ iv */
-	vpxor (0*16)(%r12), RR1, RR1;
-	vpxor (1*16)(%r12), RL1, RL1;
-	vpxor (2*16)(%r12), RR2, RR2;
-	vpxor (3*16)(%r12), RL2, RL2;
-	vpxor (4*16)(%r12), RR3, RR3;
-	vpxor (5*16)(%r12), RL3, RL3;
-	vpxor (6*16)(%r12), RR4, RR4;
-	vpxor (7*16)(%r12), RL4, RL4;
+	vpxor (0*16)(%r14), RR1, RR1;
+	vpxor (1*16)(%r14), RL1, RL1;
+	vpxor (2*16)(%r14), RR2, RR2;
+	vpxor (3*16)(%r14), RL2, RL2;
+	vpxor (4*16)(%r14), RR3, RR3;
+	vpxor (5*16)(%r14), RL3, RL3;
+	vpxor (6*16)(%r14), RR4, RR4;
+	vpxor (7*16)(%r14), RL4, RL4;
 	vmovdqu RR1, (0*16)(%r11);
 	vmovdqu RL1, (1*16)(%r11);
 	vmovdqu RR2, (2*16)(%r11);
@@ -548,8 +554,9 @@ ENTRY(cast5_ctr_16way)
 	vmovdqu RR4, (6*16)(%r11);
 	vmovdqu RL4, (7*16)(%r11);
 
-	popq %r12;
+	popq %r14;
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(cast5_ctr_16way)
diff --git a/arch/x86/crypto/cast6-avx-x86_64-asm_64.S b/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
index c419389..b853452 100644
--- a/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
+++ b/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
@@ -25,6 +25,7 @@
 
 #include <linux/linkage.h>
 #include <asm/frame.h>
+#include <asm/alternative-asm.h>
 #include "glue_helper-asm-avx.S"
 
 .file "cast6-avx-x86_64-asm_64.S"
@@ -296,6 +297,7 @@ __cast6_enc_blk8:
 	outunpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM);
 	outunpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM);
 
+	pax_force_retaddr
 	ret;
 ENDPROC(__cast6_enc_blk8)
 
@@ -341,10 +343,11 @@ __cast6_dec_blk8:
 	outunpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM);
 	outunpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM);
 
+	pax_force_retaddr
 	ret;
 ENDPROC(__cast6_dec_blk8)
 
-ENTRY(cast6_ecb_enc_8way)
+RAP_ENTRY(cast6_ecb_enc_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -361,10 +364,11 @@ ENTRY(cast6_ecb_enc_8way)
 	store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(cast6_ecb_enc_8way)
 
-ENTRY(cast6_ecb_dec_8way)
+RAP_ENTRY(cast6_ecb_dec_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -381,10 +385,11 @@ ENTRY(cast6_ecb_dec_8way)
 	store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(cast6_ecb_dec_8way)
 
-ENTRY(cast6_cbc_dec_8way)
+RAP_ENTRY(cast6_cbc_dec_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -392,24 +397,25 @@ ENTRY(cast6_cbc_dec_8way)
 	 */
 	FRAME_BEGIN
 
-	pushq %r12;
+	pushq %r14;
 
 	movq %rsi, %r11;
-	movq %rdx, %r12;
+	movq %rdx, %r14;
 
 	load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
 
 	call __cast6_dec_blk8;
 
-	store_cbc_8way(%r12, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+	store_cbc_8way(%r14, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
 
-	popq %r12;
+	popq %r14;
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(cast6_cbc_dec_8way)
 
-ENTRY(cast6_ctr_8way)
+RAP_ENTRY(cast6_ctr_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -418,25 +424,26 @@ ENTRY(cast6_ctr_8way)
 	 */
 	FRAME_BEGIN
 
-	pushq %r12;
+	pushq %r14;
 
 	movq %rsi, %r11;
-	movq %rdx, %r12;
+	movq %rdx, %r14;
 
 	load_ctr_8way(%rcx, .Lbswap128_mask, RA1, RB1, RC1, RD1, RA2, RB2, RC2,
 		      RD2, RX, RKR, RKM);
 
 	call __cast6_enc_blk8;
 
-	store_ctr_8way(%r12, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+	store_ctr_8way(%r14, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
 
-	popq %r12;
+	popq %r14;
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(cast6_ctr_8way)
 
-ENTRY(cast6_xts_enc_8way)
+RAP_ENTRY(cast6_xts_enc_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -457,10 +464,11 @@ ENTRY(cast6_xts_enc_8way)
 	store_xts_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(cast6_xts_enc_8way)
 
-ENTRY(cast6_xts_dec_8way)
+RAP_ENTRY(cast6_xts_dec_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -481,5 +489,6 @@ ENTRY(cast6_xts_dec_8way)
 	store_xts_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(cast6_xts_dec_8way)
diff --git a/arch/x86/crypto/cast6_avx_glue.c b/arch/x86/crypto/cast6_avx_glue.c
index 50e6847..bf7c2d8 100644
--- a/arch/x86/crypto/cast6_avx_glue.c
+++ b/arch/x86/crypto/cast6_avx_glue.c
@@ -41,20 +41,20 @@
 
 #define CAST6_PARALLEL_BLOCKS 8
 
-asmlinkage void cast6_ecb_enc_8way(struct cast6_ctx *ctx, u8 *dst,
+asmlinkage void cast6_ecb_enc_8way(void *ctx, u8 *dst,
 				   const u8 *src);
-asmlinkage void cast6_ecb_dec_8way(struct cast6_ctx *ctx, u8 *dst,
+asmlinkage void cast6_ecb_dec_8way(void *ctx, u8 *dst,
 				   const u8 *src);
 
-asmlinkage void cast6_cbc_dec_8way(struct cast6_ctx *ctx, u8 *dst,
+asmlinkage void cast6_cbc_dec_8way(void *ctx, u8 *dst,
 				   const u8 *src);
-asmlinkage void cast6_ctr_8way(struct cast6_ctx *ctx, u8 *dst, const u8 *src,
+asmlinkage void cast6_ctr_8way(void *ctx, u128 *dst, const u128 *src,
 			       le128 *iv);
 
-asmlinkage void cast6_xts_enc_8way(struct cast6_ctx *ctx, u8 *dst,
-				   const u8 *src, le128 *iv);
-asmlinkage void cast6_xts_dec_8way(struct cast6_ctx *ctx, u8 *dst,
-				   const u8 *src, le128 *iv);
+asmlinkage void cast6_xts_enc_8way(void *ctx, u128 *dst,
+				   const u128 *src, le128 *iv);
+asmlinkage void cast6_xts_dec_8way(void *ctx, u128 *dst,
+				   const u128 *src, le128 *iv);
 
 static void cast6_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv)
 {
diff --git a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
index dc05f010..23c8bfd 100644
--- a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
+++ b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
@@ -45,6 +45,7 @@
 
 #include <asm/inst.h>
 #include <linux/linkage.h>
+#include <asm/alternative-asm.h>
 
 ## ISCSI CRC 32 Implementation with crc32 and pclmulqdq Instruction
 
@@ -309,6 +310,7 @@ do_return:
 	popq    %rsi
 	popq    %rdi
 	popq    %rbx
+	pax_force_retaddr
         ret
 ENDPROC(crc_pcl)
 
diff --git a/arch/x86/crypto/ghash-clmulni-intel_asm.S b/arch/x86/crypto/ghash-clmulni-intel_asm.S
index eed55c8..b354187 100644
--- a/arch/x86/crypto/ghash-clmulni-intel_asm.S
+++ b/arch/x86/crypto/ghash-clmulni-intel_asm.S
@@ -19,6 +19,7 @@
 #include <linux/linkage.h>
 #include <asm/inst.h>
 #include <asm/frame.h>
+#include <asm/alternative-asm.h>
 
 .data
 
@@ -90,6 +91,7 @@ __clmul_gf128mul_ble:
 	psrlq $1, T2
 	pxor T2, T1
 	pxor T1, DATA
+	pax_force_retaddr
 	ret
 ENDPROC(__clmul_gf128mul_ble)
 
@@ -104,6 +106,7 @@ ENTRY(clmul_ghash_mul)
 	PSHUFB_XMM BSWAP DATA
 	movups DATA, (%rdi)
 	FRAME_END
+	pax_force_retaddr
 	ret
 ENDPROC(clmul_ghash_mul)
 
@@ -133,5 +136,6 @@ ENTRY(clmul_ghash_update)
 	movups DATA, (%rdi)
 .Lupdate_just_ret:
 	FRAME_END
+	pax_force_retaddr
 	ret
 ENDPROC(clmul_ghash_update)
diff --git a/arch/x86/crypto/glue_helper.c b/arch/x86/crypto/glue_helper.c
index 6a85598..fed2ada 100644
--- a/arch/x86/crypto/glue_helper.c
+++ b/arch/x86/crypto/glue_helper.c
@@ -165,7 +165,7 @@ __glue_cbc_decrypt_128bit(const struct common_glue_ctx *gctx,
 				src -= num_blocks - 1;
 				dst -= num_blocks - 1;
 
-				gctx->funcs[i].fn_u.cbc(ctx, dst, src);
+				gctx->funcs[i].fn_u.cbc(ctx, (u8 *)dst, (u8 *)src);
 
 				nbytes -= bsize;
 				if (nbytes < bsize)
diff --git a/arch/x86/crypto/salsa20-x86_64-asm_64.S b/arch/x86/crypto/salsa20-x86_64-asm_64.S
index 9279e0b..c4b3d2c 100644
--- a/arch/x86/crypto/salsa20-x86_64-asm_64.S
+++ b/arch/x86/crypto/salsa20-x86_64-asm_64.S
@@ -1,4 +1,5 @@
 #include <linux/linkage.h>
+#include <asm/alternative-asm.h>
 
 # enter salsa20_encrypt_bytes
 ENTRY(salsa20_encrypt_bytes)
@@ -789,6 +790,7 @@ ENTRY(salsa20_encrypt_bytes)
 	add	%r11,%rsp
 	mov	%rdi,%rax
 	mov	%rsi,%rdx
+	pax_force_retaddr
 	ret
 #   bytesatleast65:
 ._bytesatleast65:
@@ -889,6 +891,7 @@ ENTRY(salsa20_keysetup)
 	add	%r11,%rsp
 	mov	%rdi,%rax
 	mov	%rsi,%rdx
+	pax_force_retaddr
 	ret
 ENDPROC(salsa20_keysetup)
 
@@ -914,5 +917,6 @@ ENTRY(salsa20_ivsetup)
 	add	%r11,%rsp
 	mov	%rdi,%rax
 	mov	%rsi,%rdx
+	pax_force_retaddr
 	ret
 ENDPROC(salsa20_ivsetup)
diff --git a/arch/x86/crypto/serpent-avx-x86_64-asm_64.S b/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
index 8be5718..d2bcbcd 100644
--- a/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
+++ b/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
@@ -25,6 +25,7 @@
 
 #include <linux/linkage.h>
 #include <asm/frame.h>
+#include <asm/alternative-asm.h>
 #include "glue_helper-asm-avx.S"
 
 .file "serpent-avx-x86_64-asm_64.S"
@@ -619,6 +620,7 @@ __serpent_enc_blk8_avx:
 	write_blocks(RA1, RB1, RC1, RD1, RK0, RK1, RK2);
 	write_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2);
 
+	pax_force_retaddr
 	ret;
 ENDPROC(__serpent_enc_blk8_avx)
 
@@ -673,10 +675,11 @@ __serpent_dec_blk8_avx:
 	write_blocks(RC1, RD1, RB1, RE1, RK0, RK1, RK2);
 	write_blocks(RC2, RD2, RB2, RE2, RK0, RK1, RK2);
 
+	pax_force_retaddr
 	ret;
 ENDPROC(__serpent_dec_blk8_avx)
 
-ENTRY(serpent_ecb_enc_8way_avx)
+RAP_ENTRY(serpent_ecb_enc_8way_avx)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -691,10 +694,11 @@ ENTRY(serpent_ecb_enc_8way_avx)
 	store_8way(%rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(serpent_ecb_enc_8way_avx)
 
-ENTRY(serpent_ecb_dec_8way_avx)
+RAP_ENTRY(serpent_ecb_dec_8way_avx)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -709,10 +713,11 @@ ENTRY(serpent_ecb_dec_8way_avx)
 	store_8way(%rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2);
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(serpent_ecb_dec_8way_avx)
 
-ENTRY(serpent_cbc_dec_8way_avx)
+RAP_ENTRY(serpent_cbc_dec_8way_avx)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -727,10 +732,11 @@ ENTRY(serpent_cbc_dec_8way_avx)
 	store_cbc_8way(%rdx, %rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2);
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(serpent_cbc_dec_8way_avx)
 
-ENTRY(serpent_ctr_8way_avx)
+RAP_ENTRY(serpent_ctr_8way_avx)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -747,10 +753,11 @@ ENTRY(serpent_ctr_8way_avx)
 	store_ctr_8way(%rdx, %rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(serpent_ctr_8way_avx)
 
-ENTRY(serpent_xts_enc_8way_avx)
+RAP_ENTRY(serpent_xts_enc_8way_avx)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -769,10 +776,11 @@ ENTRY(serpent_xts_enc_8way_avx)
 	store_xts_8way(%rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(serpent_xts_enc_8way_avx)
 
-ENTRY(serpent_xts_dec_8way_avx)
+RAP_ENTRY(serpent_xts_dec_8way_avx)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -791,5 +799,6 @@ ENTRY(serpent_xts_dec_8way_avx)
 	store_xts_8way(%rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2);
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(serpent_xts_dec_8way_avx)
diff --git a/arch/x86/crypto/serpent-avx2-asm_64.S b/arch/x86/crypto/serpent-avx2-asm_64.S
index 97c48ad..25416de 100644
--- a/arch/x86/crypto/serpent-avx2-asm_64.S
+++ b/arch/x86/crypto/serpent-avx2-asm_64.S
@@ -16,6 +16,7 @@
 
 #include <linux/linkage.h>
 #include <asm/frame.h>
+#include <asm/alternative-asm.h>
 #include "glue_helper-asm-avx2.S"
 
 .file "serpent-avx2-asm_64.S"
@@ -611,6 +612,7 @@ __serpent_enc_blk16:
 	write_blocks(RA1, RB1, RC1, RD1, RK0, RK1, RK2);
 	write_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2);
 
+	pax_force_retaddr
 	ret;
 ENDPROC(__serpent_enc_blk16)
 
@@ -665,10 +667,11 @@ __serpent_dec_blk16:
 	write_blocks(RC1, RD1, RB1, RE1, RK0, RK1, RK2);
 	write_blocks(RC2, RD2, RB2, RE2, RK0, RK1, RK2);
 
+	pax_force_retaddr
 	ret;
 ENDPROC(__serpent_dec_blk16)
 
-ENTRY(serpent_ecb_enc_16way)
+RAP_ENTRY(serpent_ecb_enc_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -687,10 +690,11 @@ ENTRY(serpent_ecb_enc_16way)
 	vzeroupper;
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(serpent_ecb_enc_16way)
 
-ENTRY(serpent_ecb_dec_16way)
+RAP_ENTRY(serpent_ecb_dec_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -709,10 +713,11 @@ ENTRY(serpent_ecb_dec_16way)
 	vzeroupper;
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(serpent_ecb_dec_16way)
 
-ENTRY(serpent_cbc_dec_16way)
+RAP_ENTRY(serpent_cbc_dec_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -732,10 +737,11 @@ ENTRY(serpent_cbc_dec_16way)
 	vzeroupper;
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(serpent_cbc_dec_16way)
 
-ENTRY(serpent_ctr_16way)
+RAP_ENTRY(serpent_ctr_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (16 blocks)
@@ -757,10 +763,11 @@ ENTRY(serpent_ctr_16way)
 	vzeroupper;
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(serpent_ctr_16way)
 
-ENTRY(serpent_xts_enc_16way)
+RAP_ENTRY(serpent_xts_enc_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (16 blocks)
@@ -783,10 +790,11 @@ ENTRY(serpent_xts_enc_16way)
 	vzeroupper;
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(serpent_xts_enc_16way)
 
-ENTRY(serpent_xts_dec_16way)
+RAP_ENTRY(serpent_xts_dec_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (16 blocks)
@@ -809,5 +817,6 @@ ENTRY(serpent_xts_dec_16way)
 	vzeroupper;
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(serpent_xts_dec_16way)
diff --git a/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S b/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
index acc066c..1559cc4 100644
--- a/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
+++ b/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
@@ -25,6 +25,7 @@
  */
 
 #include <linux/linkage.h>
+#include <asm/alternative-asm.h>
 
 .file "serpent-sse2-x86_64-asm_64.S"
 .text
@@ -690,12 +691,14 @@ ENTRY(__serpent_enc_blk_8way)
 	write_blocks(%rsi, RA1, RB1, RC1, RD1, RK0, RK1, RK2);
 	write_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2);
 
+	pax_force_retaddr
 	ret;
 
 .L__enc_xor8:
 	xor_blocks(%rsi, RA1, RB1, RC1, RD1, RK0, RK1, RK2);
 	xor_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2);
 
+	pax_force_retaddr
 	ret;
 ENDPROC(__serpent_enc_blk_8way)
 
@@ -750,5 +753,6 @@ ENTRY(serpent_dec_blk_8way)
 	write_blocks(%rsi, RC1, RD1, RB1, RE1, RK0, RK1, RK2);
 	write_blocks(%rax, RC2, RD2, RB2, RE2, RK0, RK1, RK2);
 
+	pax_force_retaddr
 	ret;
 ENDPROC(serpent_dec_blk_8way)
diff --git a/arch/x86/crypto/serpent_avx2_glue.c b/arch/x86/crypto/serpent_avx2_glue.c
index 6d19834..a08fbe9 100644
--- a/arch/x86/crypto/serpent_avx2_glue.c
+++ b/arch/x86/crypto/serpent_avx2_glue.c
@@ -27,18 +27,18 @@
 #define SERPENT_AVX2_PARALLEL_BLOCKS 16
 
 /* 16-way AVX2 parallel cipher functions */
-asmlinkage void serpent_ecb_enc_16way(struct serpent_ctx *ctx, u8 *dst,
+asmlinkage void serpent_ecb_enc_16way(void *ctx, u8 *dst,
 				      const u8 *src);
-asmlinkage void serpent_ecb_dec_16way(struct serpent_ctx *ctx, u8 *dst,
+asmlinkage void serpent_ecb_dec_16way(void *ctx, u8 *dst,
 				      const u8 *src);
-asmlinkage void serpent_cbc_dec_16way(void *ctx, u128 *dst, const u128 *src);
+asmlinkage void serpent_cbc_dec_16way(void *ctx, u8 *dst, const u8 *src);
 
 asmlinkage void serpent_ctr_16way(void *ctx, u128 *dst, const u128 *src,
 				  le128 *iv);
-asmlinkage void serpent_xts_enc_16way(struct serpent_ctx *ctx, u8 *dst,
-				      const u8 *src, le128 *iv);
-asmlinkage void serpent_xts_dec_16way(struct serpent_ctx *ctx, u8 *dst,
-				      const u8 *src, le128 *iv);
+asmlinkage void serpent_xts_enc_16way(void *ctx, u128 *dst,
+				      const u128 *src, le128 *iv);
+asmlinkage void serpent_xts_dec_16way(void *ctx, u128 *dst,
+				      const u128 *src, le128 *iv);
 
 static const struct common_glue_ctx serpent_enc = {
 	.num_funcs = 3,
diff --git a/arch/x86/crypto/serpent_avx_glue.c b/arch/x86/crypto/serpent_avx_glue.c
index 6f778d3..3cf277e 100644
--- a/arch/x86/crypto/serpent_avx_glue.c
+++ b/arch/x86/crypto/serpent_avx_glue.c
@@ -41,28 +41,28 @@
 #include <asm/crypto/glue_helper.h>
 
 /* 8-way parallel cipher functions */
-asmlinkage void serpent_ecb_enc_8way_avx(struct serpent_ctx *ctx, u8 *dst,
+asmlinkage void serpent_ecb_enc_8way_avx(void  *ctx, u8 *dst,
 					 const u8 *src);
 EXPORT_SYMBOL_GPL(serpent_ecb_enc_8way_avx);
 
-asmlinkage void serpent_ecb_dec_8way_avx(struct serpent_ctx *ctx, u8 *dst,
+asmlinkage void serpent_ecb_dec_8way_avx(void *ctx, u8 *dst,
 					 const u8 *src);
 EXPORT_SYMBOL_GPL(serpent_ecb_dec_8way_avx);
 
-asmlinkage void serpent_cbc_dec_8way_avx(struct serpent_ctx *ctx, u8 *dst,
+asmlinkage void serpent_cbc_dec_8way_avx(void *ctx, u8 *dst,
 					 const u8 *src);
 EXPORT_SYMBOL_GPL(serpent_cbc_dec_8way_avx);
 
-asmlinkage void serpent_ctr_8way_avx(struct serpent_ctx *ctx, u8 *dst,
-				     const u8 *src, le128 *iv);
+asmlinkage void serpent_ctr_8way_avx(void *ctx, u128 *dst,
+				     const u128 *src, le128 *iv);
 EXPORT_SYMBOL_GPL(serpent_ctr_8way_avx);
 
-asmlinkage void serpent_xts_enc_8way_avx(struct serpent_ctx *ctx, u8 *dst,
-					 const u8 *src, le128 *iv);
+asmlinkage void serpent_xts_enc_8way_avx(void *ctx, u128 *dst,
+					 const u128 *src, le128 *iv);
 EXPORT_SYMBOL_GPL(serpent_xts_enc_8way_avx);
 
-asmlinkage void serpent_xts_dec_8way_avx(struct serpent_ctx *ctx, u8 *dst,
-					 const u8 *src, le128 *iv);
+asmlinkage void serpent_xts_dec_8way_avx(void *ctx, u128 *dst,
+					 const u128 *src, le128 *iv);
 EXPORT_SYMBOL_GPL(serpent_xts_dec_8way_avx);
 
 void __serpent_crypt_ctr(void *ctx, u128 *dst, const u128 *src, le128 *iv)
diff --git a/arch/x86/crypto/serpent_sse2_glue.c b/arch/x86/crypto/serpent_sse2_glue.c
index 8943407..beb882d 100644
--- a/arch/x86/crypto/serpent_sse2_glue.c
+++ b/arch/x86/crypto/serpent_sse2_glue.c
@@ -45,8 +45,10 @@
 #include <asm/crypto/serpent-sse2.h>
 #include <asm/crypto/glue_helper.h>
 
-static void serpent_decrypt_cbc_xway(void *ctx, u128 *dst, const u128 *src)
+static void serpent_decrypt_cbc_xway(void *ctx, u8 *_dst, const u8 *_src)
 {
+	u128 *dst = (u128 *)_dst;
+	const u128 *src = (const u128 *)_src;
 	u128 ivs[SERPENT_PARALLEL_BLOCKS - 1];
 	unsigned int j;
 
diff --git a/arch/x86/crypto/sha-mb/sha1_mb_mgr_flush_avx2.S b/arch/x86/crypto/sha-mb/sha1_mb_mgr_flush_avx2.S
index 96df6a3..8519a8f 100644
--- a/arch/x86/crypto/sha-mb/sha1_mb_mgr_flush_avx2.S
+++ b/arch/x86/crypto/sha-mb/sha1_mb_mgr_flush_avx2.S
@@ -103,7 +103,7 @@ offset = \_offset
 
 # JOB* sha1_mb_mgr_flush_avx2(MB_MGR *state)
 # arg 1 : rcx : state
-ENTRY(sha1_mb_mgr_flush_avx2)
+RAP_ENTRY(sha1_mb_mgr_flush_avx2)
 	FRAME_BEGIN
 	push	%rbx
 
@@ -226,7 +226,7 @@ ENDPROC(sha1_mb_mgr_flush_avx2)
 #################################################################
 
 .align 16
-ENTRY(sha1_mb_mgr_get_comp_job_avx2)
+RAP_ENTRY(sha1_mb_mgr_get_comp_job_avx2)
 	push    %rbx
 
 	## if bit 32+3 is set, then all lanes are empty
diff --git a/arch/x86/crypto/sha-mb/sha1_mb_mgr_submit_avx2.S b/arch/x86/crypto/sha-mb/sha1_mb_mgr_submit_avx2.S
index 63a0d9c..a6038fd 100644
--- a/arch/x86/crypto/sha-mb/sha1_mb_mgr_submit_avx2.S
+++ b/arch/x86/crypto/sha-mb/sha1_mb_mgr_submit_avx2.S
@@ -98,7 +98,7 @@ lane_data       = %r10
 # JOB* submit_mb_mgr_submit_avx2(MB_MGR *state, job_sha1 *job)
 # arg 1 : rcx : state
 # arg 2 : rdx : job
-ENTRY(sha1_mb_mgr_submit_avx2)
+RAP_ENTRY(sha1_mb_mgr_submit_avx2)
 	FRAME_BEGIN
 	push	%rbx
 	push	%r12
diff --git a/arch/x86/crypto/sha1_ssse3_asm.S b/arch/x86/crypto/sha1_ssse3_asm.S
index a410950..02d2056 100644
--- a/arch/x86/crypto/sha1_ssse3_asm.S
+++ b/arch/x86/crypto/sha1_ssse3_asm.S
@@ -29,6 +29,7 @@
  */
 
 #include <linux/linkage.h>
+#include <asm/alternative-asm.h>
 
 #define CTX	%rdi	// arg1
 #define BUF	%rsi	// arg2
@@ -71,13 +72,14 @@
  * param: function's name
  */
 .macro SHA1_VECTOR_ASM  name
-	ENTRY(\name)
+ALIGN
+	RAP_ENTRY(\name)
 
 	push	%rbx
 	push	%rbp
-	push	%r12
+	push	%r14
 
-	mov	%rsp, %r12
+	mov	%rsp, %r14
 	sub	$64, %rsp		# allocate workspace
 	and	$~15, %rsp		# align stack
 
@@ -99,11 +101,12 @@
 	xor	%rax, %rax
 	rep stosq
 
-	mov	%r12, %rsp		# deallocate workspace
+	mov	%r14, %rsp		# deallocate workspace
 
-	pop	%r12
+	pop	%r14
 	pop	%rbp
 	pop	%rbx
+	pax_force_retaddr
 	ret
 
 	ENDPROC(\name)
diff --git a/arch/x86/crypto/sha1_ssse3_glue.c b/arch/x86/crypto/sha1_ssse3_glue.c
index dd14616..53358bb 100644
--- a/arch/x86/crypto/sha1_ssse3_glue.c
+++ b/arch/x86/crypto/sha1_ssse3_glue.c
@@ -31,8 +31,8 @@
 #include <crypto/sha1_base.h>
 #include <asm/fpu/api.h>
 
-typedef void (sha1_transform_fn)(u32 *digest, const char *data,
-				unsigned int rounds);
+typedef void (sha1_transform_fn)(struct sha1_state *digest, const u8 *data,
+				int rounds);
 
 static int sha1_update(struct shash_desc *desc, const u8 *data,
 			     unsigned int len, sha1_transform_fn *sha1_xform)
@@ -47,8 +47,7 @@ static int sha1_update(struct shash_desc *desc, const u8 *data,
 	BUILD_BUG_ON(offsetof(struct sha1_state, state) != 0);
 
 	kernel_fpu_begin();
-	sha1_base_do_update(desc, data, len,
-			    (sha1_block_fn *)sha1_xform);
+	sha1_base_do_update(desc, data, len, sha1_xform);
 	kernel_fpu_end();
 
 	return 0;
@@ -62,29 +61,26 @@ static int sha1_finup(struct shash_desc *desc, const u8 *data,
 
 	kernel_fpu_begin();
 	if (len)
-		sha1_base_do_update(desc, data, len,
-				    (sha1_block_fn *)sha1_xform);
-	sha1_base_do_finalize(desc, (sha1_block_fn *)sha1_xform);
+		sha1_base_do_update(desc, data, len, sha1_xform);
+	sha1_base_do_finalize(desc, sha1_xform);
 	kernel_fpu_end();
 
 	return sha1_base_finish(desc, out);
 }
 
-asmlinkage void sha1_transform_ssse3(u32 *digest, const char *data,
-				     unsigned int rounds);
+asmlinkage void sha1_transform_ssse3(struct sha1_state *digest, const u8 *data,
+				     int rounds);
 
 static int sha1_ssse3_update(struct shash_desc *desc, const u8 *data,
 			     unsigned int len)
 {
-	return sha1_update(desc, data, len,
-			(sha1_transform_fn *) sha1_transform_ssse3);
+	return sha1_update(desc, data, len, sha1_transform_ssse3);
 }
 
 static int sha1_ssse3_finup(struct shash_desc *desc, const u8 *data,
 			      unsigned int len, u8 *out)
 {
-	return sha1_finup(desc, data, len, out,
-			(sha1_transform_fn *) sha1_transform_ssse3);
+	return sha1_finup(desc, data, len, out, sha1_transform_ssse3);
 }
 
 /* Add padding and return the message digest. */
@@ -124,21 +120,19 @@ static void unregister_sha1_ssse3(void)
 }
 
 #ifdef CONFIG_AS_AVX
-asmlinkage void sha1_transform_avx(u32 *digest, const char *data,
-				   unsigned int rounds);
+asmlinkage void sha1_transform_avx(struct sha1_state *digest, const u8 *data,
+				   int rounds);
 
 static int sha1_avx_update(struct shash_desc *desc, const u8 *data,
 			     unsigned int len)
 {
-	return sha1_update(desc, data, len,
-			(sha1_transform_fn *) sha1_transform_avx);
+	return sha1_update(desc, data, len, sha1_transform_avx);
 }
 
 static int sha1_avx_finup(struct shash_desc *desc, const u8 *data,
 			      unsigned int len, u8 *out)
 {
-	return sha1_finup(desc, data, len, out,
-			(sha1_transform_fn *) sha1_transform_avx);
+	return sha1_finup(desc, data, len, out, sha1_transform_avx);
 }
 
 static int sha1_avx_final(struct shash_desc *desc, u8 *out)
@@ -196,8 +190,8 @@ static inline void unregister_sha1_avx(void) { }
 #if defined(CONFIG_AS_AVX2) && (CONFIG_AS_AVX)
 #define SHA1_AVX2_BLOCK_OPTSIZE	4	/* optimal 4*64 bytes of SHA1 blocks */
 
-asmlinkage void sha1_transform_avx2(u32 *digest, const char *data,
-				    unsigned int rounds);
+asmlinkage void sha1_transform_avx2(struct sha1_state *digest, const u8 *data,
+				    int rounds);
 
 static bool avx2_usable(void)
 {
@@ -209,8 +203,8 @@ static bool avx2_usable(void)
 	return false;
 }
 
-static void sha1_apply_transform_avx2(u32 *digest, const char *data,
-				unsigned int rounds)
+static void sha1_apply_transform_avx2(struct sha1_state *digest, const u8 *data,
+				int rounds)
 {
 	/* Select the optimal transform based on data block size */
 	if (rounds >= SHA1_AVX2_BLOCK_OPTSIZE)
@@ -222,15 +216,13 @@ static void sha1_apply_transform_avx2(u32 *digest, const char *data,
 static int sha1_avx2_update(struct shash_desc *desc, const u8 *data,
 			     unsigned int len)
 {
-	return sha1_update(desc, data, len,
-		(sha1_transform_fn *) sha1_apply_transform_avx2);
+	return sha1_update(desc, data, len, sha1_apply_transform_avx2);
 }
 
 static int sha1_avx2_finup(struct shash_desc *desc, const u8 *data,
 			      unsigned int len, u8 *out)
 {
-	return sha1_finup(desc, data, len, out,
-		(sha1_transform_fn *) sha1_apply_transform_avx2);
+	return sha1_finup(desc, data, len, out, sha1_apply_transform_avx2);
 }
 
 static int sha1_avx2_final(struct shash_desc *desc, u8 *out)
@@ -274,21 +266,19 @@ static inline void unregister_sha1_avx2(void) { }
 #endif
 
 #ifdef CONFIG_AS_SHA1_NI
-asmlinkage void sha1_ni_transform(u32 *digest, const char *data,
-				   unsigned int rounds);
+asmlinkage void sha1_ni_transform(struct sha1_state *digest, const u8 *data,
+				   int rounds);
 
 static int sha1_ni_update(struct shash_desc *desc, const u8 *data,
 			     unsigned int len)
 {
-	return sha1_update(desc, data, len,
-		(sha1_transform_fn *) sha1_ni_transform);
+	return sha1_update(desc, data, len, sha1_ni_transform);
 }
 
 static int sha1_ni_finup(struct shash_desc *desc, const u8 *data,
 			      unsigned int len, u8 *out)
 {
-	return sha1_finup(desc, data, len, out,
-		(sha1_transform_fn *) sha1_ni_transform);
+	return sha1_finup(desc, data, len, out, sha1_ni_transform);
 }
 
 static int sha1_ni_final(struct shash_desc *desc, u8 *out)
diff --git a/arch/x86/crypto/sha256-avx-asm.S b/arch/x86/crypto/sha256-avx-asm.S
index 92b3b5d..8732479 100644
--- a/arch/x86/crypto/sha256-avx-asm.S
+++ b/arch/x86/crypto/sha256-avx-asm.S
@@ -49,6 +49,7 @@
 
 #ifdef CONFIG_AS_AVX
 #include <linux/linkage.h>
+#include <asm/alternative-asm.h>
 
 ## assume buffers not aligned
 #define    VMOVDQ vmovdqu
@@ -347,8 +348,7 @@ a = TMP_
 ## arg 3 : Num blocks
 ########################################################################
 .text
-ENTRY(sha256_transform_avx)
-.align 32
+RAP_ENTRY(sha256_transform_avx)
 	pushq   %rbx
 	pushq   %rbp
 	pushq   %r13
@@ -460,6 +460,7 @@ done_hash:
 	popq    %r13
 	popq    %rbp
 	popq    %rbx
+	pax_force_retaddr
 	ret
 ENDPROC(sha256_transform_avx)
 
diff --git a/arch/x86/crypto/sha256-avx2-asm.S b/arch/x86/crypto/sha256-avx2-asm.S
index 570ec5e..9bcfa25 100644
--- a/arch/x86/crypto/sha256-avx2-asm.S
+++ b/arch/x86/crypto/sha256-avx2-asm.S
@@ -50,6 +50,7 @@
 
 #ifdef CONFIG_AS_AVX2
 #include <linux/linkage.h>
+#include <asm/alternative-asm.h>
 
 ## assume buffers not aligned
 #define	VMOVDQ vmovdqu
@@ -528,8 +529,7 @@ STACK_SIZE	= _RSP      + _RSP_SIZE
 ## arg 3 : Num blocks
 ########################################################################
 .text
-ENTRY(sha256_transform_rorx)
-.align 32
+RAP_ENTRY(sha256_transform_rorx)
 	pushq	%rbx
 	pushq	%rbp
 	pushq	%r12
@@ -720,6 +720,7 @@ done_hash:
 	popq	%r12
 	popq	%rbp
 	popq	%rbx
+	pax_force_retaddr
 	ret
 ENDPROC(sha256_transform_rorx)
 
diff --git a/arch/x86/crypto/sha256-ssse3-asm.S b/arch/x86/crypto/sha256-ssse3-asm.S
index 2cedc44..6fb8582 100644
--- a/arch/x86/crypto/sha256-ssse3-asm.S
+++ b/arch/x86/crypto/sha256-ssse3-asm.S
@@ -47,6 +47,7 @@
 ########################################################################
 
 #include <linux/linkage.h>
+#include <asm/alternative-asm.h>
 
 ## assume buffers not aligned
 #define    MOVDQ movdqu
@@ -352,9 +353,7 @@ a = TMP_
 ## arg 2 : pointer to input data
 ## arg 3 : Num blocks
 ########################################################################
-.text
-ENTRY(sha256_transform_ssse3)
-.align 32
+RAP_ENTRY(sha256_transform_ssse3)
 	pushq   %rbx
 	pushq   %rbp
 	pushq   %r13
@@ -471,6 +470,7 @@ done_hash:
 	popq    %rbp
 	popq    %rbx
 
+	pax_force_retaddr
 	ret
 ENDPROC(sha256_transform_ssse3)
 
diff --git a/arch/x86/crypto/sha256_ni_asm.S b/arch/x86/crypto/sha256_ni_asm.S
index 748cdf2..959bb4d 100644
--- a/arch/x86/crypto/sha256_ni_asm.S
+++ b/arch/x86/crypto/sha256_ni_asm.S
@@ -97,7 +97,7 @@
 
 .text
 .align 32
-ENTRY(sha256_ni_transform)
+RAP_ENTRY(sha256_ni_transform)
 
 	shl		$6, NUM_BLKS		/*  convert to bytes */
 	jz		.Ldone_hash
diff --git a/arch/x86/crypto/sha256_ssse3_glue.c b/arch/x86/crypto/sha256_ssse3_glue.c
index 5f4d608..ddce00d 100644
--- a/arch/x86/crypto/sha256_ssse3_glue.c
+++ b/arch/x86/crypto/sha256_ssse3_glue.c
@@ -40,9 +40,9 @@
 #include <asm/fpu/api.h>
 #include <linux/string.h>
 
-asmlinkage void sha256_transform_ssse3(u32 *digest, const char *data,
-				       u64 rounds);
-typedef void (sha256_transform_fn)(u32 *digest, const char *data, u64 rounds);
+asmlinkage void sha256_transform_ssse3(struct sha256_state *digest, const u8 *data,
+				       int rounds);
+typedef void (sha256_transform_fn)(struct sha256_state *digest, const u8 *data, int rounds);
 
 static int sha256_update(struct shash_desc *desc, const u8 *data,
 			 unsigned int len, sha256_transform_fn *sha256_xform)
@@ -57,8 +57,7 @@ static int sha256_update(struct shash_desc *desc, const u8 *data,
 	BUILD_BUG_ON(offsetof(struct sha256_state, state) != 0);
 
 	kernel_fpu_begin();
-	sha256_base_do_update(desc, data, len,
-			      (sha256_block_fn *)sha256_xform);
+	sha256_base_do_update(desc, data, len, sha256_xform);
 	kernel_fpu_end();
 
 	return 0;
@@ -72,9 +71,8 @@ static int sha256_finup(struct shash_desc *desc, const u8 *data,
 
 	kernel_fpu_begin();
 	if (len)
-		sha256_base_do_update(desc, data, len,
-				      (sha256_block_fn *)sha256_xform);
-	sha256_base_do_finalize(desc, (sha256_block_fn *)sha256_xform);
+		sha256_base_do_update(desc, data, len, sha256_xform);
+	sha256_base_do_finalize(desc, sha256_xform);
 	kernel_fpu_end();
 
 	return sha256_base_finish(desc, out);
@@ -146,8 +144,8 @@ static void unregister_sha256_ssse3(void)
 }
 
 #ifdef CONFIG_AS_AVX
-asmlinkage void sha256_transform_avx(u32 *digest, const char *data,
-				     u64 rounds);
+asmlinkage void sha256_transform_avx(struct sha256_state *digest, const u8 *data,
+				     int rounds);
 
 static int sha256_avx_update(struct shash_desc *desc, const u8 *data,
 			 unsigned int len)
@@ -230,8 +228,8 @@ static inline void unregister_sha256_avx(void) { }
 #endif
 
 #if defined(CONFIG_AS_AVX2) && defined(CONFIG_AS_AVX)
-asmlinkage void sha256_transform_rorx(u32 *digest, const char *data,
-				      u64 rounds);
+asmlinkage void sha256_transform_rorx(struct sha256_state *digest, const u8 *data,
+				      int rounds);
 
 static int sha256_avx2_update(struct shash_desc *desc, const u8 *data,
 			 unsigned int len)
@@ -312,8 +310,8 @@ static inline void unregister_sha256_avx2(void) { }
 #endif
 
 #ifdef CONFIG_AS_SHA256_NI
-asmlinkage void sha256_ni_transform(u32 *digest, const char *data,
-				   u64 rounds); /*unsigned int rounds);*/
+asmlinkage void sha256_ni_transform(struct sha256_state *digest, const u8 *data,
+				   int rounds); /*unsigned int rounds);*/
 
 static int sha256_ni_update(struct shash_desc *desc, const u8 *data,
 			 unsigned int len)
diff --git a/arch/x86/crypto/sha512-avx-asm.S b/arch/x86/crypto/sha512-avx-asm.S
index 565274d..779d34a 100644
--- a/arch/x86/crypto/sha512-avx-asm.S
+++ b/arch/x86/crypto/sha512-avx-asm.S
@@ -49,6 +49,7 @@
 
 #ifdef CONFIG_AS_AVX
 #include <linux/linkage.h>
+#include <asm/alternative-asm.h>
 
 .text
 
@@ -277,7 +278,8 @@ frame_size = frame_GPRSAVE + GPRSAVE_SIZE
 # message blocks.
 # L is the message length in SHA512 blocks
 ########################################################################
-ENTRY(sha512_transform_avx)
+ALIGN
+RAP_ENTRY(sha512_transform_avx)
 	cmp $0, msglen
 	je nowork
 
@@ -364,6 +366,7 @@ updateblock:
 	mov	frame_RSPSAVE(%rsp), %rsp
 
 nowork:
+	pax_force_retaddr
 	ret
 ENDPROC(sha512_transform_avx)
 
diff --git a/arch/x86/crypto/sha512-avx2-asm.S b/arch/x86/crypto/sha512-avx2-asm.S
index 1f20b35..ab1f3a8 100644
--- a/arch/x86/crypto/sha512-avx2-asm.S
+++ b/arch/x86/crypto/sha512-avx2-asm.S
@@ -51,6 +51,7 @@
 
 #ifdef CONFIG_AS_AVX2
 #include <linux/linkage.h>
+#include <asm/alternative-asm.h>
 
 .text
 
@@ -568,7 +569,8 @@ frame_size = frame_GPRSAVE + GPRSAVE_SIZE
 #   message blocks.
 # L is the message length in SHA512 blocks
 ########################################################################
-ENTRY(sha512_transform_rorx)
+ALIGN
+RAP_ENTRY(sha512_transform_rorx)
 	# Allocate Stack Space
 	mov	%rsp, %rax
 	sub	$frame_size, %rsp
@@ -678,6 +680,7 @@ done_hash:
 
 	# Restore Stack Pointer
 	mov	frame_RSPSAVE(%rsp), %rsp
+	pax_force_retaddr
 	ret
 ENDPROC(sha512_transform_rorx)
 
diff --git a/arch/x86/crypto/sha512-ssse3-asm.S b/arch/x86/crypto/sha512-ssse3-asm.S
index e610e29..83f1cde 100644
--- a/arch/x86/crypto/sha512-ssse3-asm.S
+++ b/arch/x86/crypto/sha512-ssse3-asm.S
@@ -48,6 +48,7 @@
 ########################################################################
 
 #include <linux/linkage.h>
+#include <asm/alternative-asm.h>
 
 .text
 
@@ -275,7 +276,8 @@ frame_size = frame_GPRSAVE + GPRSAVE_SIZE
 #   message blocks.
 # L is the message length in SHA512 blocks.
 ########################################################################
-ENTRY(sha512_transform_ssse3)
+ALIGN
+RAP_ENTRY(sha512_transform_ssse3)
 
 	cmp $0, msglen
 	je nowork
@@ -363,6 +365,7 @@ updateblock:
 	mov	frame_RSPSAVE(%rsp), %rsp
 
 nowork:
+	pax_force_retaddr
 	ret
 ENDPROC(sha512_transform_ssse3)
 
diff --git a/arch/x86/crypto/sha512_ssse3_glue.c b/arch/x86/crypto/sha512_ssse3_glue.c
index 34e5083..eb57a5e 100644
--- a/arch/x86/crypto/sha512_ssse3_glue.c
+++ b/arch/x86/crypto/sha512_ssse3_glue.c
@@ -39,10 +39,10 @@
 
 #include <linux/string.h>
 
-asmlinkage void sha512_transform_ssse3(u64 *digest, const char *data,
-				       u64 rounds);
+asmlinkage void sha512_transform_ssse3(struct sha512_state *digest, const u8 *data,
+				       int rounds);
 
-typedef void (sha512_transform_fn)(u64 *digest, const char *data, u64 rounds);
+typedef void (sha512_transform_fn)(struct sha512_state *digest, const u8 *data, int rounds);
 
 static int sha512_update(struct shash_desc *desc, const u8 *data,
 		       unsigned int len, sha512_transform_fn *sha512_xform)
@@ -57,8 +57,7 @@ static int sha512_update(struct shash_desc *desc, const u8 *data,
 	BUILD_BUG_ON(offsetof(struct sha512_state, state) != 0);
 
 	kernel_fpu_begin();
-	sha512_base_do_update(desc, data, len,
-			      (sha512_block_fn *)sha512_xform);
+	sha512_base_do_update(desc, data, len, sha512_xform);
 	kernel_fpu_end();
 
 	return 0;
@@ -72,9 +71,8 @@ static int sha512_finup(struct shash_desc *desc, const u8 *data,
 
 	kernel_fpu_begin();
 	if (len)
-		sha512_base_do_update(desc, data, len,
-				      (sha512_block_fn *)sha512_xform);
-	sha512_base_do_finalize(desc, (sha512_block_fn *)sha512_xform);
+		sha512_base_do_update(desc, data, len, sha512_xform);
+	sha512_base_do_finalize(desc, sha512_xform);
 	kernel_fpu_end();
 
 	return sha512_base_finish(desc, out);
@@ -146,8 +144,8 @@ static void unregister_sha512_ssse3(void)
 }
 
 #ifdef CONFIG_AS_AVX
-asmlinkage void sha512_transform_avx(u64 *digest, const char *data,
-				     u64 rounds);
+asmlinkage void sha512_transform_avx(struct sha512_state *digest, const u8 *data,
+				     int rounds);
 static bool avx_usable(void)
 {
 	if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL)) {
@@ -229,8 +227,8 @@ static inline void unregister_sha512_avx(void) { }
 #endif
 
 #if defined(CONFIG_AS_AVX2) && defined(CONFIG_AS_AVX)
-asmlinkage void sha512_transform_rorx(u64 *digest, const char *data,
-				      u64 rounds);
+asmlinkage void sha512_transform_rorx(struct sha512_state *digest, const u8 *data,
+				      int rounds);
 
 static int sha512_avx2_update(struct shash_desc *desc, const u8 *data,
 		       unsigned int len)
diff --git a/arch/x86/crypto/twofish-avx-x86_64-asm_64.S b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
index dc66273..30aba4b 100644
--- a/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
+++ b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
@@ -25,6 +25,7 @@
 
 #include <linux/linkage.h>
 #include <asm/frame.h>
+#include <asm/alternative-asm.h>
 #include "glue_helper-asm-avx.S"
 
 .file "twofish-avx-x86_64-asm_64.S"
@@ -285,6 +286,7 @@ __twofish_enc_blk8:
 	outunpack_blocks(RC1, RD1, RA1, RB1, RK1, RX0, RY0, RK2);
 	outunpack_blocks(RC2, RD2, RA2, RB2, RK1, RX0, RY0, RK2);
 
+	pax_force_retaddr
 	ret;
 ENDPROC(__twofish_enc_blk8)
 
@@ -325,10 +327,11 @@ __twofish_dec_blk8:
 	outunpack_blocks(RA1, RB1, RC1, RD1, RK1, RX0, RY0, RK2);
 	outunpack_blocks(RA2, RB2, RC2, RD2, RK1, RX0, RY0, RK2);
 
+	pax_force_retaddr
 	ret;
 ENDPROC(__twofish_dec_blk8)
 
-ENTRY(twofish_ecb_enc_8way)
+RAP_ENTRY(twofish_ecb_enc_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -345,10 +348,11 @@ ENTRY(twofish_ecb_enc_8way)
 	store_8way(%r11, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(twofish_ecb_enc_8way)
 
-ENTRY(twofish_ecb_dec_8way)
+RAP_ENTRY(twofish_ecb_dec_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -365,10 +369,11 @@ ENTRY(twofish_ecb_dec_8way)
 	store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(twofish_ecb_dec_8way)
 
-ENTRY(twofish_cbc_dec_8way)
+RAP_ENTRY(twofish_cbc_dec_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -376,24 +381,25 @@ ENTRY(twofish_cbc_dec_8way)
 	 */
 	FRAME_BEGIN
 
-	pushq %r12;
+	pushq %r14;
 
 	movq %rsi, %r11;
-	movq %rdx, %r12;
+	movq %rdx, %r14;
 
 	load_8way(%rdx, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
 
 	call __twofish_dec_blk8;
 
-	store_cbc_8way(%r12, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+	store_cbc_8way(%r14, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
 
-	popq %r12;
+	popq %r14;
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(twofish_cbc_dec_8way)
 
-ENTRY(twofish_ctr_8way)
+RAP_ENTRY(twofish_ctr_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -402,25 +408,26 @@ ENTRY(twofish_ctr_8way)
 	 */
 	FRAME_BEGIN
 
-	pushq %r12;
+	pushq %r14;
 
 	movq %rsi, %r11;
-	movq %rdx, %r12;
+	movq %rdx, %r14;
 
 	load_ctr_8way(%rcx, .Lbswap128_mask, RA1, RB1, RC1, RD1, RA2, RB2, RC2,
 		      RD2, RX0, RX1, RY0);
 
 	call __twofish_enc_blk8;
 
-	store_ctr_8way(%r12, %r11, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
+	store_ctr_8way(%r14, %r11, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
 
-	popq %r12;
+	popq %r14;
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(twofish_ctr_8way)
 
-ENTRY(twofish_xts_enc_8way)
+RAP_ENTRY(twofish_xts_enc_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -441,10 +448,11 @@ ENTRY(twofish_xts_enc_8way)
 	store_xts_8way(%r11, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(twofish_xts_enc_8way)
 
-ENTRY(twofish_xts_dec_8way)
+RAP_ENTRY(twofish_xts_dec_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -465,5 +473,6 @@ ENTRY(twofish_xts_dec_8way)
 	store_xts_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
 
 	FRAME_END
+	pax_force_retaddr
 	ret;
 ENDPROC(twofish_xts_dec_8way)
diff --git a/arch/x86/crypto/twofish-i586-asm_32.S b/arch/x86/crypto/twofish-i586-asm_32.S
index 694ea45..f2c1418 100644
--- a/arch/x86/crypto/twofish-i586-asm_32.S
+++ b/arch/x86/crypto/twofish-i586-asm_32.S
@@ -220,7 +220,7 @@
 	xor	%esi,		d ## D;\
 	ror	$1,		d ## D;
 
-ENTRY(twofish_enc_blk)
+RAP_ENTRY(twofish_enc_blk)
 	push	%ebp			/* save registers according to calling convention*/
 	push    %ebx
 	push    %esi
@@ -276,7 +276,7 @@ ENTRY(twofish_enc_blk)
 	ret
 ENDPROC(twofish_enc_blk)
 
-ENTRY(twofish_dec_blk)
+RAP_ENTRY(twofish_dec_blk)
 	push	%ebp			/* save registers according to calling convention*/
 	push    %ebx
 	push    %esi
diff --git a/arch/x86/crypto/twofish-x86_64-asm_64-3way.S b/arch/x86/crypto/twofish-x86_64-asm_64-3way.S
index 1c3b7ce..c9912c7 100644
--- a/arch/x86/crypto/twofish-x86_64-asm_64-3way.S
+++ b/arch/x86/crypto/twofish-x86_64-asm_64-3way.S
@@ -21,6 +21,7 @@
  */
 
 #include <linux/linkage.h>
+#include <asm/alternative-asm.h>
 
 .file "twofish-x86_64-asm-3way.S"
 .text
@@ -258,6 +259,7 @@ ENTRY(__twofish_enc_blk_3way)
 	popq %r13;
 	popq %r14;
 	popq %r15;
+	pax_force_retaddr
 	ret;
 
 .L__enc_xor3:
@@ -269,10 +271,11 @@ ENTRY(__twofish_enc_blk_3way)
 	popq %r13;
 	popq %r14;
 	popq %r15;
+	pax_force_retaddr
 	ret;
 ENDPROC(__twofish_enc_blk_3way)
 
-ENTRY(twofish_dec_blk_3way)
+RAP_ENTRY(twofish_dec_blk_3way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -308,5 +311,6 @@ ENTRY(twofish_dec_blk_3way)
 	popq %r13;
 	popq %r14;
 	popq %r15;
+	pax_force_retaddr
 	ret;
 ENDPROC(twofish_dec_blk_3way)
diff --git a/arch/x86/crypto/twofish-x86_64-asm_64.S b/arch/x86/crypto/twofish-x86_64-asm_64.S
index a350c99..080c5ab 100644
--- a/arch/x86/crypto/twofish-x86_64-asm_64.S
+++ b/arch/x86/crypto/twofish-x86_64-asm_64.S
@@ -22,6 +22,7 @@
 
 #include <linux/linkage.h>
 #include <asm/asm-offsets.h>
+#include <asm/alternative-asm.h>
 
 #define a_offset	0
 #define b_offset	4
@@ -215,7 +216,7 @@
 	xor	%r8d,		d ## D;\
 	ror	$1,		d ## D;
 
-ENTRY(twofish_enc_blk)
+RAP_ENTRY(twofish_enc_blk)
 	pushq    R1
 
 	/* %rdi contains the ctx address */
@@ -265,10 +266,11 @@ ENTRY(twofish_enc_blk)
 
 	popq	R1
 	movl	$1,%eax
+	pax_force_retaddr
 	ret
 ENDPROC(twofish_enc_blk)
 
-ENTRY(twofish_dec_blk)
+RAP_ENTRY(twofish_dec_blk)
 	pushq    R1
 
 	/* %rdi contains the ctx address */
@@ -317,5 +319,6 @@ ENTRY(twofish_dec_blk)
 
 	popq	R1
 	movl	$1,%eax
+	pax_force_retaddr
 	ret
 ENDPROC(twofish_dec_blk)
diff --git a/arch/x86/crypto/twofish_avx_glue.c b/arch/x86/crypto/twofish_avx_glue.c
index b7a3904b..3e4d0d6 100644
--- a/arch/x86/crypto/twofish_avx_glue.c
+++ b/arch/x86/crypto/twofish_avx_glue.c
@@ -46,24 +46,25 @@
 #define TWOFISH_PARALLEL_BLOCKS 8
 
 /* 8-way parallel cipher functions */
-asmlinkage void twofish_ecb_enc_8way(struct twofish_ctx *ctx, u8 *dst,
+asmlinkage void twofish_ecb_enc_8way(void *ctx, u8 *dst,
 				     const u8 *src);
-asmlinkage void twofish_ecb_dec_8way(struct twofish_ctx *ctx, u8 *dst,
+asmlinkage void twofish_ecb_dec_8way(void *ctx, u8 *dst,
 				     const u8 *src);
 
-asmlinkage void twofish_cbc_dec_8way(struct twofish_ctx *ctx, u8 *dst,
+asmlinkage void twofish_cbc_dec_8way(void *ctx, u8 *dst,
 				     const u8 *src);
-asmlinkage void twofish_ctr_8way(struct twofish_ctx *ctx, u8 *dst,
-				 const u8 *src, le128 *iv);
+asmlinkage void twofish_ctr_8way(void *ctx, u128 *dst,
+				 const u128 *src, le128 *iv);
 
-asmlinkage void twofish_xts_enc_8way(struct twofish_ctx *ctx, u8 *dst,
-				     const u8 *src, le128 *iv);
-asmlinkage void twofish_xts_dec_8way(struct twofish_ctx *ctx, u8 *dst,
-				     const u8 *src, le128 *iv);
+asmlinkage void twofish_xts_enc_8way(void *ctx, u128 *dst,
+				     const u128 *src, le128 *iv);
+asmlinkage void twofish_xts_dec_8way(void *ctx, u128 *dst,
+				     const u128 *src, le128 *iv);
 
-static inline void twofish_enc_blk_3way(struct twofish_ctx *ctx, u8 *dst,
+static inline void twofish_enc_blk_3way(void *_ctx, u8 *dst,
 					const u8 *src)
 {
+	struct twofish_ctx *ctx = _ctx;
 	__twofish_enc_blk_3way(ctx, dst, src, false);
 }
 
diff --git a/arch/x86/crypto/twofish_glue.c b/arch/x86/crypto/twofish_glue.c
index 77e06c2..a45c27b 100644
--- a/arch/x86/crypto/twofish_glue.c
+++ b/arch/x86/crypto/twofish_glue.c
@@ -44,10 +44,10 @@
 #include <linux/module.h>
 #include <linux/types.h>
 
-asmlinkage void twofish_enc_blk(struct twofish_ctx *ctx, u8 *dst,
+asmlinkage void twofish_enc_blk(void *ctx, u8 *dst,
 				const u8 *src);
 EXPORT_SYMBOL_GPL(twofish_enc_blk);
-asmlinkage void twofish_dec_blk(struct twofish_ctx *ctx, u8 *dst,
+asmlinkage void twofish_dec_blk(void *ctx, u8 *dst,
 				const u8 *src);
 EXPORT_SYMBOL_GPL(twofish_dec_blk);
 
diff --git a/arch/x86/crypto/twofish_glue_3way.c b/arch/x86/crypto/twofish_glue_3way.c
index 2ebb5e9..a0b0aa9 100644
--- a/arch/x86/crypto/twofish_glue_3way.c
+++ b/arch/x86/crypto/twofish_glue_3way.c
@@ -36,21 +36,21 @@
 EXPORT_SYMBOL_GPL(__twofish_enc_blk_3way);
 EXPORT_SYMBOL_GPL(twofish_dec_blk_3way);
 
-static inline void twofish_enc_blk_3way(struct twofish_ctx *ctx, u8 *dst,
+static inline void twofish_enc_blk_3way(void *ctx, u8 *dst,
 					const u8 *src)
 {
 	__twofish_enc_blk_3way(ctx, dst, src, false);
 }
 
-static inline void twofish_enc_blk_xor_3way(struct twofish_ctx *ctx, u8 *dst,
+static inline void twofish_enc_blk_xor_3way(void *ctx, u8 *dst,
 					    const u8 *src)
 {
 	__twofish_enc_blk_3way(ctx, dst, src, true);
 }
 
-void twofish_dec_blk_cbc_3way(void *ctx, u128 *dst, const u128 *src)
+void twofish_dec_blk_cbc_3way(void *ctx, u8 *_dst, const u8 *_src)
 {
-	u128 ivs[2];
+	u128 ivs[2], *dst = (u128 *)_dst, *src = (u128 *)_src;
 
 	ivs[0] = src[0];
 	ivs[1] = src[1];
@@ -118,10 +118,10 @@ static const struct common_glue_ctx twofish_ctr = {
 
 	.funcs = { {
 		.num_blocks = 3,
-		.fn_u = { .ecb = GLUE_FUNC_CAST(twofish_enc_blk_ctr_3way) }
+		.fn_u = { .ctr = GLUE_CTR_FUNC_CAST(twofish_enc_blk_ctr_3way) }
 	}, {
 		.num_blocks = 1,
-		.fn_u = { .ecb = GLUE_FUNC_CAST(twofish_enc_blk_ctr) }
+		.fn_u = { .ctr = GLUE_CTR_FUNC_CAST(twofish_enc_blk_ctr) }
 	} }
 };
 
diff --git a/arch/x86/entry/Makefile b/arch/x86/entry/Makefile
index fe91c25..18f6ab9 100644
--- a/arch/x86/entry/Makefile
+++ b/arch/x86/entry/Makefile
@@ -13,3 +13,5 @@ obj-y				+= vsyscall/
 
 obj-$(CONFIG_IA32_EMULATION)	+= entry_64_compat.o syscall_32.o
 
+CFLAGS_REMOVE_syscall_32.o = $(RAP_PLUGIN_ABS_CFLAGS)
+CFLAGS_REMOVE_syscall_64.o = $(RAP_PLUGIN_ABS_CFLAGS)
diff --git a/arch/x86/entry/calling.h b/arch/x86/entry/calling.h
index 9a9e588..b900d1c 100644
--- a/arch/x86/entry/calling.h
+++ b/arch/x86/entry/calling.h
@@ -95,23 +95,26 @@ For 32-bit we have the following conventions - kernel is built with
 	.endm
 
 	.macro SAVE_C_REGS_HELPER offset=0 rax=1 rcx=1 r8910=1 r11=1
+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
+	movq %r12, R12+\offset(%rsp)
+#endif
 	.if \r11
-	movq %r11, 6*8+\offset(%rsp)
+	movq %r11, R11+\offset(%rsp)
 	.endif
 	.if \r8910
-	movq %r10, 7*8+\offset(%rsp)
-	movq %r9,  8*8+\offset(%rsp)
-	movq %r8,  9*8+\offset(%rsp)
+	movq %r10, R10+\offset(%rsp)
+	movq %r9,  R9+\offset(%rsp)
+	movq %r8,  R8+\offset(%rsp)
 	.endif
 	.if \rax
-	movq %rax, 10*8+\offset(%rsp)
+	movq %rax, RAX+\offset(%rsp)
 	.endif
 	.if \rcx
-	movq %rcx, 11*8+\offset(%rsp)
+	movq %rcx, RCX+\offset(%rsp)
 	.endif
-	movq %rdx, 12*8+\offset(%rsp)
-	movq %rsi, 13*8+\offset(%rsp)
-	movq %rdi, 14*8+\offset(%rsp)
+	movq %rdx, RDX+\offset(%rsp)
+	movq %rsi, RSI+\offset(%rsp)
+	movq %rdi, RDI+\offset(%rsp)
 	.endm
 	.macro SAVE_C_REGS offset=0
 	SAVE_C_REGS_HELPER \offset, 1, 1, 1, 1
@@ -130,67 +133,78 @@ For 32-bit we have the following conventions - kernel is built with
 	.endm
 
 	.macro SAVE_EXTRA_REGS offset=0
-	movq %r15, 0*8+\offset(%rsp)
-	movq %r14, 1*8+\offset(%rsp)
-	movq %r13, 2*8+\offset(%rsp)
-	movq %r12, 3*8+\offset(%rsp)
-	movq %rbp, 4*8+\offset(%rsp)
-	movq %rbx, 5*8+\offset(%rsp)
+	movq %r15, R15+\offset(%rsp)
+	movq %r14, R14+\offset(%rsp)
+	movq %r13, R13+\offset(%rsp)
+#ifndef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
+	movq %r12, R12+\offset(%rsp)
+#endif
+	movq %rbp, RBP+\offset(%rsp)
+	movq %rbx, RBX+\offset(%rsp)
 	.endm
 
 	.macro RESTORE_EXTRA_REGS offset=0
-	movq 0*8+\offset(%rsp), %r15
-	movq 1*8+\offset(%rsp), %r14
-	movq 2*8+\offset(%rsp), %r13
-	movq 3*8+\offset(%rsp), %r12
-	movq 4*8+\offset(%rsp), %rbp
-	movq 5*8+\offset(%rsp), %rbx
+	movq R15+\offset(%rsp), %r15
+	movq R14+\offset(%rsp), %r14
+	movq R13+\offset(%rsp), %r13
+#ifndef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
+	movq R12+\offset(%rsp), %r12
+#endif
+	movq RBP+\offset(%rsp), %rbp
+	movq RBX+\offset(%rsp), %rbx
 	.endm
 
 	.macro ZERO_EXTRA_REGS
 	xorl	%r15d, %r15d
 	xorl	%r14d, %r14d
 	xorl	%r13d, %r13d
+#ifndef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
 	xorl	%r12d, %r12d
+#endif
 	xorl	%ebp, %ebp
 	xorl	%ebx, %ebx
 	.endm
 
-	.macro RESTORE_C_REGS_HELPER rstor_rax=1, rstor_rcx=1, rstor_r11=1, rstor_r8910=1, rstor_rdx=1
+	.macro RESTORE_C_REGS_HELPER rstor_rax=1, rstor_rcx=1, rstor_r11=1, rstor_r8910=1, rstor_rdx=1, rstor_r12=1
+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
+	.if \rstor_r12
+	movq R12(%rsp), %r12
+	.endif
+#endif
 	.if \rstor_r11
-	movq 6*8(%rsp), %r11
+	movq R11(%rsp), %r11
 	.endif
 	.if \rstor_r8910
-	movq 7*8(%rsp), %r10
-	movq 8*8(%rsp), %r9
-	movq 9*8(%rsp), %r8
+	movq R10(%rsp), %r10
+	movq R9(%rsp), %r9
+	movq R8(%rsp), %r8
 	.endif
 	.if \rstor_rax
-	movq 10*8(%rsp), %rax
+	movq RAX(%rsp), %rax
 	.endif
 	.if \rstor_rcx
-	movq 11*8(%rsp), %rcx
+	movq RCX(%rsp), %rcx
 	.endif
 	.if \rstor_rdx
-	movq 12*8(%rsp), %rdx
+	movq RDX(%rsp), %rdx
 	.endif
-	movq 13*8(%rsp), %rsi
-	movq 14*8(%rsp), %rdi
+	movq RSI(%rsp), %rsi
+	movq RDI(%rsp), %rdi
 	.endm
 	.macro RESTORE_C_REGS
-	RESTORE_C_REGS_HELPER 1,1,1,1,1
+	RESTORE_C_REGS_HELPER 1,1,1,1,1,1
 	.endm
 	.macro RESTORE_C_REGS_EXCEPT_RAX
-	RESTORE_C_REGS_HELPER 0,1,1,1,1
+	RESTORE_C_REGS_HELPER 0,1,1,1,1,0
 	.endm
 	.macro RESTORE_C_REGS_EXCEPT_RCX
-	RESTORE_C_REGS_HELPER 1,0,1,1,1
+	RESTORE_C_REGS_HELPER 1,0,1,1,1,0
 	.endm
 	.macro RESTORE_C_REGS_EXCEPT_R11
-	RESTORE_C_REGS_HELPER 1,1,0,1,1
+	RESTORE_C_REGS_HELPER 1,1,0,1,1,1
 	.endm
 	.macro RESTORE_C_REGS_EXCEPT_RCX_R11
-	RESTORE_C_REGS_HELPER 1,0,0,1,1
+	RESTORE_C_REGS_HELPER 1,0,0,1,1,1
 	.endm
 
 	.macro REMOVE_PT_GPREGS_FROM_STACK addskip=0
diff --git a/arch/x86/entry/common.c b/arch/x86/entry/common.c
index e79d93d..31091ce 100644
--- a/arch/x86/entry/common.c
+++ b/arch/x86/entry/common.c
@@ -33,9 +33,7 @@
 
 static struct thread_info *pt_regs_to_thread_info(struct pt_regs *regs)
 {
-	unsigned long top_of_stack =
-		(unsigned long)(regs + 1) + TOP_OF_KERNEL_STACK_PADDING;
-	return (struct thread_info *)(top_of_stack - THREAD_SIZE);
+	return current_thread_info();
 }
 
 #ifdef CONFIG_CONTEXT_TRACKING
@@ -49,6 +47,12 @@ __visible void enter_from_user_mode(void)
 static inline void enter_from_user_mode(void) {}
 #endif
 
+#ifdef CONFIG_PAX_MEMORY_STACKLEAK
+asmlinkage void pax_erase_kstack(void);
+#else
+static void pax_erase_kstack(void) {}
+#endif
+
 static void do_audit_syscall_entry(struct pt_regs *regs, u32 arch)
 {
 #ifdef CONFIG_X86_64
@@ -152,6 +156,10 @@ unsigned long syscall_trace_enter_phase1(struct pt_regs *regs, u32 arch)
 	return 1;  /* Something is enabled that we can't handle in phase 1 */
 }
 
+#ifdef CONFIG_GRKERNSEC_SETXID
+extern void gr_delayed_cred_worker(void);
+#endif
+
 /* Returns the syscall nr to run (which should match regs->orig_ax). */
 long syscall_trace_enter_phase2(struct pt_regs *regs, u32 arch,
 				unsigned long phase1_result)
@@ -163,6 +171,11 @@ long syscall_trace_enter_phase2(struct pt_regs *regs, u32 arch,
 	if (IS_ENABLED(CONFIG_DEBUG_ENTRY))
 		BUG_ON(regs != task_pt_regs(current));
 
+#ifdef CONFIG_GRKERNSEC_SETXID
+	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
+		gr_delayed_cred_worker();
+#endif
+
 #ifdef CONFIG_SECCOMP
 	/*
 	 * Call seccomp_phase2 before running the other hooks so that
@@ -189,15 +202,14 @@ long syscall_trace_enter_phase2(struct pt_regs *regs, u32 arch,
 	return ret ?: regs->orig_ax;
 }
 
-long syscall_trace_enter(struct pt_regs *regs)
+static long syscall_trace_enter(struct pt_regs *regs)
 {
 	u32 arch = is_ia32_task() ? AUDIT_ARCH_I386 : AUDIT_ARCH_X86_64;
 	unsigned long phase1_result = syscall_trace_enter_phase1(regs, arch);
 
-	if (phase1_result == 0)
-		return regs->orig_ax;
-	else
-		return syscall_trace_enter_phase2(regs, arch, phase1_result);
+	phase1_result = phase1_result ? syscall_trace_enter_phase2(regs, arch, phase1_result) : regs->orig_ax;
+	pax_erase_kstack();
+	return phase1_result;
 }
 
 #define EXIT_TO_USERMODE_LOOP_FLAGS				\
@@ -299,7 +311,7 @@ static void syscall_slow_exit_work(struct pt_regs *regs, u32 cached_flags)
 	step = unlikely(
 		(cached_flags & (_TIF_SINGLESTEP | _TIF_SYSCALL_EMU))
 		== _TIF_SINGLESTEP);
-	if (step || cached_flags & _TIF_SYSCALL_TRACE)
+	if (step || (cached_flags & _TIF_SYSCALL_TRACE))
 		tracehook_report_syscall_exit(regs, step);
 }
 
@@ -318,6 +330,11 @@ __visible inline void syscall_return_slowpath(struct pt_regs *regs)
 	    WARN(irqs_disabled(), "syscall %ld left IRQs disabled", regs->orig_ax))
 		local_irq_enable();
 
+#ifdef CONFIG_GRKERNSEC_SETXID
+	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
+		gr_delayed_cred_worker();
+#endif
+
 	/*
 	 * First do one-time work.  If these work items are enabled, we
 	 * want to run them exactly once per syscall exit with IRQs on.
@@ -347,9 +364,29 @@ __visible void do_syscall_64(struct pt_regs *regs)
 	 * regs->orig_ax, which changes the behavior of some syscalls.
 	 */
 	if (likely((nr & __SYSCALL_MASK) < NR_syscalls)) {
+#ifdef CONFIG_PAX_RAP
+		asm volatile("movq %[param1],%%rdi\n\t"
+			     "movq %[param2],%%rsi\n\t"
+			     "movq %[param3],%%rdx\n\t"
+			     "movq %[param4],%%rcx\n\t"
+			     "movq %[param5],%%r8\n\t"
+			     "movq %[param6],%%r9\n\t"
+			     "call *%P[syscall]\n\t"
+			     "mov %%rax,%[result]\n\t"
+			: [result] "=m" (regs->ax)
+			: [syscall] "m" (sys_call_table[nr & __SYSCALL_MASK]),
+			  [param1] "m" (regs->di),
+			  [param2] "m" (regs->si),
+			  [param3] "m" (regs->dx),
+			  [param4] "m" (regs->r10),
+			  [param5] "m" (regs->r8),
+			  [param6] "m" (regs->r9)
+			: "ax", "di", "si", "dx", "cx", "r8", "r9", "r10", "r11", "memory");
+#else
 		regs->ax = sys_call_table[nr & __SYSCALL_MASK](
 			regs->di, regs->si, regs->dx,
 			regs->r10, regs->r8, regs->r9);
+#endif
 	}
 
 	syscall_return_slowpath(regs);
@@ -389,10 +426,51 @@ static __always_inline void do_syscall_32_irqs_on(struct pt_regs *regs)
 		 * the high bits are zero.  Make sure we zero-extend all
 		 * of the args.
 		 */
+#ifdef CONFIG_PAX_RAP
+#ifdef CONFIG_X86_64
+		asm volatile("movl %[param1],%%edi\n\t"
+			     "movl %[param2],%%esi\n\t"
+			     "movl %[param3],%%edx\n\t"
+			     "movl %[param4],%%ecx\n\t"
+			     "movl %[param5],%%r8d\n\t"
+			     "movl %[param6],%%r9d\n\t"
+			     "call *%P[syscall]\n\t"
+			     "mov %%rax,%[result]\n\t"
+			: [result] "=m" (regs->ax)
+			: [syscall] "m" (ia32_sys_call_table[nr]),
+			  [param1] "m" (regs->bx),
+			  [param2] "m" (regs->cx),
+			  [param3] "m" (regs->dx),
+			  [param4] "m" (regs->si),
+			  [param5] "m" (regs->di),
+			  [param6] "m" (regs->bp)
+			: "ax", "di", "si", "dx", "cx", "r8", "r9", "r10", "r11", "memory");
+#else
+		asm volatile("pushl %[param6]\n\t"
+			     "pushl %[param5]\n\t"
+			     "pushl %[param4]\n\t"
+			     "pushl %[param3]\n\t"
+			     "pushl %[param2]\n\t"
+			     "pushl %[param1]\n\t"
+			     "call *%P[syscall]\n\t"
+			     "addl $6*8,%%esp\n\t"
+			     "mov %%eax,%[result]\n\t"
+			: [result] "=m" (regs->ax)
+			: [syscall] "m" (ia32_sys_call_table[nr]),
+			  [param1] "m" (regs->bx),
+			  [param2] "m" (regs->cx),
+			  [param3] "m" (regs->dx),
+			  [param4] "m" (regs->si),
+			  [param5] "m" (regs->di),
+			  [param6] "m" (regs->bp)
+			: "ax", "dx", "cx", "memory");
+#endif
+#else
 		regs->ax = ia32_sys_call_table[nr](
 			(unsigned int)regs->bx, (unsigned int)regs->cx,
 			(unsigned int)regs->dx, (unsigned int)regs->si,
 			(unsigned int)regs->di, (unsigned int)regs->bp);
+#endif
 	}
 
 	syscall_return_slowpath(regs);
@@ -416,6 +494,7 @@ __visible long do_fast_syscall_32(struct pt_regs *regs)
 
 	unsigned long landing_pad = (unsigned long)current->mm->context.vdso +
 		vdso_image_32.sym_int80_landing_pad;
+	u32 __user *saved_bp = (u32 __force_user *)(unsigned long)(u32)regs->sp;
 
 	/*
 	 * SYSENTER loses EIP, and even SYSCALL32 needs us to skip forward
@@ -435,11 +514,9 @@ __visible long do_fast_syscall_32(struct pt_regs *regs)
 		 * Micro-optimization: the pointer we're following is explicitly
 		 * 32 bits, so it can't be out of range.
 		 */
-		__get_user(*(u32 *)&regs->bp,
-			    (u32 __user __force *)(unsigned long)(u32)regs->sp)
+		__get_user_nocheck(*(u32 *)&regs->bp, saved_bp, sizeof(u32))
 #else
-		get_user(*(u32 *)&regs->bp,
-			 (u32 __user __force *)(unsigned long)(u32)regs->sp)
+		get_user(regs->bp, saved_bp)
 #endif
 		) {
 
diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S
index 10868aa..e645e1d 100644
--- a/arch/x86/entry/entry_32.S
+++ b/arch/x86/entry/entry_32.S
@@ -147,13 +147,157 @@
 	movl	\reg, PT_GS(%esp)
 .endm
 .macro SET_KERNEL_GS reg
+
+#ifdef CONFIG_CC_STACKPROTECTOR
 	movl	$(__KERNEL_STACK_CANARY), \reg
+#elif defined(CONFIG_PAX_MEMORY_UDEREF)
+	movl $(__USER_DS), \reg
+#else
+	xorl \reg, \reg
+#endif
+
 	movl	\reg, %gs
 .endm
 
 #endif /* CONFIG_X86_32_LAZY_GS */
 
-.macro SAVE_ALL pt_regs_ax=%eax
+.macro pax_enter_kernel
+#ifdef CONFIG_PAX_KERNEXEC
+	call pax_enter_kernel
+#endif
+.endm
+
+.macro pax_exit_kernel
+#ifdef CONFIG_PAX_KERNEXEC
+	call pax_exit_kernel
+#endif
+.endm
+
+#ifdef CONFIG_PAX_KERNEXEC
+ENTRY(pax_enter_kernel)
+#ifdef CONFIG_PARAVIRT
+	pushl %eax
+	pushl %ecx
+	call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0)
+	mov %eax, %esi
+#else
+	mov %cr0, %esi
+#endif
+	bts $X86_CR0_WP_BIT, %esi
+	jnc 1f
+	mov %cs, %esi
+	cmp $__KERNEL_CS, %esi
+	jz 3f
+	ljmp $__KERNEL_CS, $3f
+1:	ljmp $__KERNEXEC_KERNEL_CS, $2f
+2:
+#ifdef CONFIG_PARAVIRT
+	mov %esi, %eax
+	call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0)
+#else
+	mov %esi, %cr0
+#endif
+3:
+#ifdef CONFIG_PARAVIRT
+	popl %ecx
+	popl %eax
+#endif
+	ret
+ENDPROC(pax_enter_kernel)
+
+ENTRY(pax_exit_kernel)
+#ifdef CONFIG_PARAVIRT
+	pushl %eax
+	pushl %ecx
+#endif
+	mov %cs, %esi
+	cmp $__KERNEXEC_KERNEL_CS, %esi
+	jnz 2f
+#ifdef CONFIG_PARAVIRT
+	call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0);
+	mov %eax, %esi
+#else
+	mov %cr0, %esi
+#endif
+	btr $X86_CR0_WP_BIT, %esi
+	ljmp $__KERNEL_CS, $1f
+1:
+#ifdef CONFIG_PARAVIRT
+	mov %esi, %eax
+	call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0);
+#else
+	mov %esi, %cr0
+#endif
+2:
+#ifdef CONFIG_PARAVIRT
+	popl %ecx
+	popl %eax
+#endif
+	ret
+ENDPROC(pax_exit_kernel)
+#endif
+
+	.macro pax_erase_kstack
+#ifdef CONFIG_PAX_MEMORY_STACKLEAK
+	call pax_erase_kstack
+#endif
+	.endm
+
+#ifdef CONFIG_PAX_MEMORY_STACKLEAK
+/*
+ * ebp: thread_info
+ */
+ENTRY(pax_erase_kstack)
+	pushl %edi
+	pushl %ecx
+	pushl %eax
+	pushl %ebp
+
+	GET_THREAD_INFO(%ebp)
+	mov TI_lowest_stack(%ebp), %edi
+	mov $-0xBEEF, %eax
+	std
+
+1:	mov %edi, %ecx
+	and $THREAD_SIZE_asm - 1, %ecx
+	shr $2, %ecx
+	repne scasl
+	jecxz 2f
+
+	cmp $2*16, %ecx
+	jc 2f
+
+	mov $2*16, %ecx
+	repe scasl
+	jecxz 2f
+	jne 1b
+
+2:	cld
+	or $2*4, %edi
+	mov %esp, %ecx
+	sub %edi, %ecx
+
+	cmp $THREAD_SIZE_asm, %ecx
+	jb 3f
+	ud2
+3:
+
+	shr $2, %ecx
+	rep stosl
+
+	mov TI_task_thread_sp0(%ebp), %edi
+	sub $128, %edi
+	mov %edi, TI_lowest_stack(%ebp)
+
+	popl %ebp
+	popl %eax
+	popl %ecx
+	popl %edi
+	ret
+ENDPROC(pax_erase_kstack)
+#endif
+
+.macro __SAVE_ALL pt_regs_ax, _DS
 	cld
 	PUSH_GS
 	pushl	%fs
@@ -166,7 +310,7 @@
 	pushl	%edx
 	pushl	%ecx
 	pushl	%ebx
-	movl	$(__USER_DS), %edx
+	movl	$\_DS, %edx
 	movl	%edx, %ds
 	movl	%edx, %es
 	movl	$(__KERNEL_PERCPU), %edx
@@ -174,6 +318,15 @@
 	SET_KERNEL_GS %edx
 .endm
 
+.macro SAVE_ALL pt_regs_ax=%eax
+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
+	__SAVE_ALL \pt_regs_ax, __KERNEL_DS
+	pax_enter_kernel
+#else
+	__SAVE_ALL \pt_regs_ax, __USER_DS
+#endif
+.endm
+
 .macro RESTORE_INT_REGS
 	popl	%ebx
 	popl	%ecx
@@ -216,7 +369,7 @@ ENTRY(ret_from_fork)
 	movl    %esp, %eax
 	call    syscall_return_slowpath
 	jmp     restore_all
-END(ret_from_fork)
+ENDPROC(ret_from_fork)
 
 ENTRY(ret_from_kernel_thread)
 	pushl	%eax
@@ -264,15 +417,23 @@ ret_from_intr:
 	andl	$SEGMENT_RPL_MASK, %eax
 #endif
 	cmpl	$USER_RPL, %eax
+
+#ifdef CONFIG_PAX_KERNEXEC
+	jae	resume_userspace
+
+	pax_exit_kernel
+	jmp	resume_kernel
+#else
 	jb	resume_kernel			# not returning to v8086 or userspace
+#endif
 
 ENTRY(resume_userspace)
 	DISABLE_INTERRUPTS(CLBR_ANY)
 	TRACE_IRQS_OFF
 	movl	%esp, %eax
 	call	prepare_exit_to_usermode
-	jmp	restore_all
-END(ret_from_exception)
+	jmp	.Lsyscall_32_done
+ENDPROC(ret_from_exception)
 
 #ifdef CONFIG_PREEMPT
 ENTRY(resume_kernel)
@@ -284,7 +445,7 @@ need_resched:
 	jz	restore_all
 	call	preempt_schedule_irq
 	jmp	need_resched
-END(resume_kernel)
+ENDPROC(resume_kernel)
 #endif
 
 GLOBAL(__begin_SYSENTER_singlestep_region)
@@ -351,6 +512,10 @@ sysenter_past_esp:
 	pushl	%eax			/* pt_regs->orig_ax */
 	SAVE_ALL pt_regs_ax=$-ENOSYS	/* save rest */
 
+#ifdef CONFIG_PAX_RANDKSTACK
+	pax_erase_kstack
+#endif
+
 	/*
 	 * SYSENTER doesn't filter flags, so we need to clear NT, AC
 	 * and TF ourselves.  To save a few cycles, we can check whether
@@ -386,11 +551,20 @@ sysenter_past_esp:
 	ALTERNATIVE "testl %eax, %eax; jz .Lsyscall_32_done", \
 		    "jmp .Lsyscall_32_done", X86_FEATURE_XENPV
 
+#ifdef CONFIG_PAX_RANDKSTACK
+	movl	%esp, %eax
+	call	pax_randomize_kstack
+#endif
+
+	pax_erase_kstack
+
 /* Opportunistic SYSEXIT */
 	TRACE_IRQS_ON			/* User mode traces as IRQs on. */
 	movl	PT_EIP(%esp), %edx	/* pt_regs->ip */
 	movl	PT_OLDESP(%esp), %ecx	/* pt_regs->sp */
 1:	mov	PT_FS(%esp), %fs
+2:	mov	PT_DS(%esp), %ds
+3:	mov	PT_ES(%esp), %es
 	PTGS_TO_GS
 	popl	%ebx			/* pt_regs->bx */
 	addl	$2*4, %esp		/* skip pt_regs->cx and pt_regs->dx */
@@ -416,10 +590,16 @@ sysenter_past_esp:
 	sysexit
 
 .pushsection .fixup, "ax"
-2:	movl	$0, PT_FS(%esp)
+4:	movl	$0, PT_FS(%esp)
+	jmp	1b
+5:	movl	$0, PT_DS(%esp)
+	jmp	1b
+6:	movl	$0, PT_ES(%esp)
 	jmp	1b
 .popsection
-	_ASM_EXTABLE(1b, 2b)
+	_ASM_EXTABLE(1b, 4b)
+	_ASM_EXTABLE(2b, 5b)
+	_ASM_EXTABLE(3b, 6b)
 	PTGS_TO_GS_EX
 
 .Lsysenter_fix_flags:
@@ -462,6 +642,10 @@ ENTRY(entry_INT80_32)
 	pushl	%eax			/* pt_regs->orig_ax */
 	SAVE_ALL pt_regs_ax=$-ENOSYS	/* save rest */
 
+#ifdef CONFIG_PAX_RANDKSTACK
+	pax_erase_kstack
+#endif
+
 	/*
 	 * User mode is traced as though IRQs are on, and the interrupt gate
 	 * turned them off.
@@ -472,6 +656,13 @@ ENTRY(entry_INT80_32)
 	call	do_int80_syscall_32
 .Lsyscall_32_done:
 
+#ifdef CONFIG_PAX_RANDKSTACK
+	movl	%esp, %eax
+	call	pax_randomize_kstack
+#endif
+
+	pax_erase_kstack
+
 restore_all:
 	TRACE_IRQS_IRET
 restore_all_notrace:
@@ -515,14 +706,34 @@ ldt_ss:
  * compensating for the offset by changing to the ESPFIX segment with
  * a base address that matches for the difference.
  */
-#define GDT_ESPFIX_SS PER_CPU_VAR(gdt_page) + (GDT_ENTRY_ESPFIX_SS * 8)
+#define GDT_ESPFIX_SS (GDT_ENTRY_ESPFIX_SS * 8)(%ebx)
 	mov	%esp, %edx			/* load kernel esp */
 	mov	PT_OLDESP(%esp), %eax		/* load userspace esp */
 	mov	%dx, %ax			/* eax: new kernel esp */
 	sub	%eax, %edx			/* offset (low word is 0) */
+#ifdef CONFIG_SMP
+	movl	PER_CPU_VAR(cpu_number), %ebx
+	shll	$PAGE_SHIFT_asm, %ebx
+	addl	$cpu_gdt_table, %ebx
+#else
+	movl	$cpu_gdt_table, %ebx
+#endif
 	shr	$16, %edx
-	mov	%dl, GDT_ESPFIX_SS + 4		/* bits 16..23 */
-	mov	%dh, GDT_ESPFIX_SS + 7		/* bits 24..31 */
+
+#ifdef CONFIG_PAX_KERNEXEC
+	mov	%cr0, %esi
+	btr	$X86_CR0_WP_BIT, %esi
+	mov	%esi, %cr0
+#endif
+
+	mov	%dl, 4 + GDT_ESPFIX_SS /* bits 16..23 */
+	mov	%dh, 7 + GDT_ESPFIX_SS /* bits 24..31 */
+
+#ifdef CONFIG_PAX_KERNEXEC
+	bts	$X86_CR0_WP_BIT, %esi
+	mov	%esi, %cr0
+#endif
+
 	pushl	$__ESPFIX_SS
 	pushl	%eax				/* new kernel esp */
 	/*
@@ -546,8 +757,15 @@ ENDPROC(entry_INT80_32)
  */
 #ifdef CONFIG_X86_ESPFIX32
 	/* fixup the stack */
-	mov	GDT_ESPFIX_SS + 4, %al /* bits 16..23 */
-	mov	GDT_ESPFIX_SS + 7, %ah /* bits 24..31 */
+#ifdef CONFIG_SMP
+	movl	PER_CPU_VAR(cpu_number), %ebx
+	shll	$PAGE_SHIFT_asm, %ebx
+	addl	$cpu_gdt_table, %ebx
+#else
+	movl	$cpu_gdt_table, %ebx
+#endif
+	mov	4 + GDT_ESPFIX_SS, %al /* bits 16..23 */
+	mov	7 + GDT_ESPFIX_SS, %ah /* bits 24..31 */
 	shl	$16, %eax
 	addl	%esp, %eax			/* the adjusted stack pointer */
 	pushl	$__KERNEL_DS
@@ -583,7 +801,7 @@ ENTRY(irq_entries_start)
 	jmp	common_interrupt
 	.align	8
     .endr
-END(irq_entries_start)
+ENDPROC(irq_entries_start)
 
 /*
  * the CPU automatically disables interrupts when executing an IRQ vector,
@@ -630,7 +848,7 @@ ENTRY(coprocessor_error)
 	pushl	$0
 	pushl	$do_coprocessor_error
 	jmp	error_code
-END(coprocessor_error)
+ENDPROC(coprocessor_error)
 
 ENTRY(simd_coprocessor_error)
 	ASM_CLAC
@@ -644,20 +862,20 @@ ENTRY(simd_coprocessor_error)
 	pushl	$do_simd_coprocessor_error
 #endif
 	jmp	error_code
-END(simd_coprocessor_error)
+ENDPROC(simd_coprocessor_error)
 
 ENTRY(device_not_available)
 	ASM_CLAC
 	pushl	$-1				# mark this as an int
 	pushl	$do_device_not_available
 	jmp	error_code
-END(device_not_available)
+ENDPROC(device_not_available)
 
 #ifdef CONFIG_PARAVIRT
 ENTRY(native_iret)
 	iret
 	_ASM_EXTABLE(native_iret, iret_exc)
-END(native_iret)
+ENDPROC(native_iret)
 #endif
 
 ENTRY(overflow)
@@ -665,59 +883,59 @@ ENTRY(overflow)
 	pushl	$0
 	pushl	$do_overflow
 	jmp	error_code
-END(overflow)
+ENDPROC(overflow)
 
 ENTRY(bounds)
 	ASM_CLAC
 	pushl	$0
 	pushl	$do_bounds
 	jmp	error_code
-END(bounds)
+ENDPROC(bounds)
 
 ENTRY(invalid_op)
 	ASM_CLAC
 	pushl	$0
 	pushl	$do_invalid_op
 	jmp	error_code
-END(invalid_op)
+ENDPROC(invalid_op)
 
 ENTRY(coprocessor_segment_overrun)
 	ASM_CLAC
 	pushl	$0
 	pushl	$do_coprocessor_segment_overrun
 	jmp	error_code
-END(coprocessor_segment_overrun)
+ENDPROC(coprocessor_segment_overrun)
 
 ENTRY(invalid_TSS)
 	ASM_CLAC
 	pushl	$do_invalid_TSS
 	jmp	error_code
-END(invalid_TSS)
+ENDPROC(invalid_TSS)
 
 ENTRY(segment_not_present)
 	ASM_CLAC
 	pushl	$do_segment_not_present
 	jmp	error_code
-END(segment_not_present)
+ENDPROC(segment_not_present)
 
 ENTRY(stack_segment)
 	ASM_CLAC
 	pushl	$do_stack_segment
 	jmp	error_code
-END(stack_segment)
+ENDPROC(stack_segment)
 
 ENTRY(alignment_check)
 	ASM_CLAC
 	pushl	$do_alignment_check
 	jmp	error_code
-END(alignment_check)
+ENDPROC(alignment_check)
 
 ENTRY(divide_error)
 	ASM_CLAC
 	pushl	$0				# no error code
 	pushl	$do_divide_error
 	jmp	error_code
-END(divide_error)
+ENDPROC(divide_error)
 
 #ifdef CONFIG_X86_MCE
 ENTRY(machine_check)
@@ -725,7 +943,7 @@ ENTRY(machine_check)
 	pushl	$0
 	pushl	machine_check_vector
 	jmp	error_code
-END(machine_check)
+ENDPROC(machine_check)
 #endif
 
 ENTRY(spurious_interrupt_bug)
@@ -733,7 +951,7 @@ ENTRY(spurious_interrupt_bug)
 	pushl	$0
 	pushl	$do_spurious_interrupt_bug
 	jmp	error_code
-END(spurious_interrupt_bug)
+ENDPROC(spurious_interrupt_bug)
 
 #ifdef CONFIG_XEN
 ENTRY(xen_hypervisor_callback)
@@ -832,7 +1050,7 @@ BUILD_INTERRUPT3(hyperv_callback_vector, HYPERVISOR_CALLBACK_VECTOR,
 
 ENTRY(mcount)
 	ret
-END(mcount)
+ENDPROC(mcount)
 
 ENTRY(ftrace_caller)
 	pushl	%eax
@@ -862,7 +1080,7 @@ ftrace_graph_call:
 .globl ftrace_stub
 ftrace_stub:
 	ret
-END(ftrace_caller)
+ENDPROC(ftrace_caller)
 
 ENTRY(ftrace_regs_caller)
 	pushf	/* push flags before compare (in cs location) */
@@ -960,7 +1178,7 @@ trace:
 	popl	%ecx
 	popl	%eax
 	jmp	ftrace_stub
-END(mcount)
+ENDPROC(mcount)
 #endif /* CONFIG_DYNAMIC_FTRACE */
 #endif /* CONFIG_FUNCTION_TRACER */
 
@@ -978,7 +1196,7 @@ ENTRY(ftrace_graph_caller)
 	popl	%ecx
 	popl	%eax
 	ret
-END(ftrace_graph_caller)
+ENDPROC(ftrace_graph_caller)
 
 .globl return_to_handler
 return_to_handler:
@@ -997,7 +1215,7 @@ ENTRY(trace_page_fault)
 	ASM_CLAC
 	pushl	$trace_do_page_fault
 	jmp	error_code
-END(trace_page_fault)
+ENDPROC(trace_page_fault)
 #endif
 
 ENTRY(page_fault)
@@ -1026,16 +1244,19 @@ error_code:
 	movl	$-1, PT_ORIG_EAX(%esp)		# no syscall to restart
 	REG_TO_PTGS %ecx
 	SET_KERNEL_GS %ecx
-	movl	$(__USER_DS), %ecx
+	movl	$(__KERNEL_DS), %ecx
 	movl	%ecx, %ds
 	movl	%ecx, %es
+
+	pax_enter_kernel
+
 	TRACE_IRQS_OFF
 	movl	%esp, %eax			# pt_regs pointer
 	call	*%edi
 	jmp	ret_from_exception
-END(page_fault)
+ENDPROC(page_fault)
 
-ENTRY(debug)
+ENTRY(int1)
 	/*
 	 * #DB can happen at the first instruction of
 	 * entry_SYSENTER_32 or in Xen's SYSENTER prologue.  If this
@@ -1052,7 +1273,13 @@ ENTRY(debug)
 	movl	%esp, %eax			# pt_regs pointer
 
 	/* Are we currently on the SYSENTER stack? */
-	PER_CPU(cpu_tss + CPU_TSS_SYSENTER_stack + SIZEOF_SYSENTER_stack, %ecx)
+#ifdef CONFIG_SMP
+	imul	$TSS_size, PER_CPU_VAR(cpu_number), %ecx
+	lea	cpu_tss(%ecx), %ecx
+#else
+	movl	$cpu_tss, %ecx
+#endif
+	movl	CPU_TSS_SYSENTER_stack + SIZEOF_SYSENTER_stack(%ecx), %ecx
 	subl	%eax, %ecx	/* ecx = (end of SYSENTER_stack) - esp */
 	cmpl	$SIZEOF_SYSENTER_stack, %ecx
 	jb	.Ldebug_from_sysenter_stack
@@ -1069,7 +1296,7 @@ ENTRY(debug)
 	call	do_debug
 	movl	%ebp, %esp
 	jmp	ret_from_exception
-END(debug)
+ENDPROC(int1)
 
 /*
  * NMI is doubly nasty.  It can happen on the first instruction of
@@ -1094,13 +1321,22 @@ ENTRY(nmi)
 	movl	%esp, %eax			# pt_regs pointer
 
 	/* Are we currently on the SYSENTER stack? */
-	PER_CPU(cpu_tss + CPU_TSS_SYSENTER_stack + SIZEOF_SYSENTER_stack, %ecx)
+#ifdef CONFIG_SMP
+	imul	$TSS_size, PER_CPU_VAR(cpu_number), %ecx
+	lea	cpu_tss(%ecx), %ecx
+#else
+	movl	$cpu_tss, %ecx
+#endif
+	movl	CPU_TSS_SYSENTER_stack + SIZEOF_SYSENTER_stack(%ecx), %ecx
 	subl	%eax, %ecx	/* ecx = (end of SYSENTER_stack) - esp */
 	cmpl	$SIZEOF_SYSENTER_stack, %ecx
 	jb	.Lnmi_from_sysenter_stack
 
 	/* Not on SYSENTER stack. */
 	call	do_nmi
+
+	pax_exit_kernel
+
 	jmp	restore_all_notrace
 
 .Lnmi_from_sysenter_stack:
@@ -1112,6 +1348,9 @@ ENTRY(nmi)
 	movl	PER_CPU_VAR(cpu_current_top_of_stack), %esp
 	call	do_nmi
 	movl	%ebp, %esp
+
+	pax_exit_kernel
+
 	jmp	restore_all_notrace
 
 #ifdef CONFIG_X86_ESPFIX32
@@ -1131,11 +1370,14 @@ nmi_espfix_stack:
 	FIXUP_ESPFIX_STACK			# %eax == %esp
 	xorl	%edx, %edx			# zero error code
 	call	do_nmi
+
+	pax_exit_kernel
+
 	RESTORE_REGS
 	lss	12+4(%esp), %esp		# back to espfix stack
 	jmp	irq_return
 #endif
-END(nmi)
+ENDPROC(nmi)
 
 ENTRY(int3)
 	ASM_CLAC
@@ -1146,17 +1388,17 @@ ENTRY(int3)
 	movl	%esp, %eax			# pt_regs pointer
 	call	do_int3
 	jmp	ret_from_exception
-END(int3)
+ENDPROC(int3)
 
 ENTRY(general_protection)
 	pushl	$do_general_protection
 	jmp	error_code
-END(general_protection)
+ENDPROC(general_protection)
 
 #ifdef CONFIG_KVM_GUEST
 ENTRY(async_page_fault)
 	ASM_CLAC
 	pushl	$do_async_page_fault
 	jmp	error_code
-END(async_page_fault)
+ENDPROC(async_page_fault)
 #endif
diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index 858b555..895a2d0 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -36,6 +36,8 @@
 #include <asm/smap.h>
 #include <asm/pgtable_types.h>
 #include <linux/err.h>
+#include <asm/pgtable.h>
+#include <asm/alternative-asm.h>
 
 /* Avoid __ASSEMBLER__'ifying <linux/audit.h> just for this.  */
 #include <linux/elf-em.h>
@@ -53,6 +55,402 @@ ENTRY(native_usergs_sysret64)
 ENDPROC(native_usergs_sysret64)
 #endif /* CONFIG_PARAVIRT */
 
+	.macro ljmpq sel, off
+#if defined(CONFIG_MPSC) || defined(CONFIG_MCORE2) || defined (CONFIG_MATOM)
+	.byte 0x48; ljmp *1234f(%rip)
+	.pushsection .rodata
+	.align 16
+	1234: .quad \off; .word \sel
+	.popsection
+#else
+	pushq	$\sel
+	pushq	$\off
+	lretq
+#endif
+	.endm
+
+	.macro pax_enter_kernel
+	pax_set_fptr_mask
+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
+	call	pax_enter_kernel
+#endif
+	.endm
+
+	.macro pax_exit_kernel
+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
+	call	pax_exit_kernel
+#endif
+	.endm
+
+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
+ENTRY(pax_enter_kernel)
+	pushq	%rdi
+
+#ifdef CONFIG_PARAVIRT
+	PV_SAVE_REGS(CLBR_RDI)
+#endif
+
+#ifdef CONFIG_PAX_KERNEXEC
+	GET_CR0_INTO_RDI
+	bts	$X86_CR0_WP_BIT,%rdi
+	jnc	3f
+	mov	%cs,%edi
+	cmp	$__KERNEL_CS,%edi
+	jnz	2f
+1:
+#endif
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	ALTERNATIVE "jmp 111f", "", X86_FEATURE_PCID
+	GET_CR3_INTO_RDI
+	cmp	$0,%dil
+	jnz	112f
+	mov	$__KERNEL_DS,%edi
+	mov	%edi,%ss
+	jmp	111f
+112:	cmp	$1,%dil
+	jz	113f
+	ud2
+113:	sub	$4097,%rdi
+	bts	$63,%rdi
+	SET_RDI_INTO_CR3
+	mov	$__UDEREF_KERNEL_DS,%edi
+	mov	%edi,%ss
+111:
+#endif
+
+#ifdef CONFIG_PARAVIRT
+	PV_RESTORE_REGS(CLBR_RDI)
+#endif
+
+	popq	%rdi
+	pax_force_retaddr
+	retq
+
+#ifdef CONFIG_PAX_KERNEXEC
+2:	ljmpq	__KERNEL_CS,1b
+3:	ljmpq	__KERNEXEC_KERNEL_CS,4f
+4:	SET_RDI_INTO_CR0
+	jmp	1b
+#endif
+ENDPROC(pax_enter_kernel)
+
+ENTRY(pax_exit_kernel)
+	pushq	%rdi
+
+#ifdef CONFIG_PARAVIRT
+	PV_SAVE_REGS(CLBR_RDI)
+#endif
+
+#ifdef CONFIG_PAX_KERNEXEC
+	mov	%cs,%rdi
+	cmp	$__KERNEXEC_KERNEL_CS,%edi
+	jz	2f
+	GET_CR0_INTO_RDI
+	bts	$X86_CR0_WP_BIT,%rdi
+	jnc	4f
+1:
+#endif
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	ALTERNATIVE "jmp 111f", "", X86_FEATURE_PCID
+	mov	%ss,%edi
+	cmp	$__UDEREF_KERNEL_DS,%edi
+	jnz	111f
+	GET_CR3_INTO_RDI
+	cmp	$0,%dil
+	jz	112f
+	ud2
+112:	add	$4097,%rdi
+	bts	$63,%rdi
+	SET_RDI_INTO_CR3
+	mov	$__KERNEL_DS,%edi
+	mov	%edi,%ss
+111:
+#endif
+
+#ifdef CONFIG_PARAVIRT
+	PV_RESTORE_REGS(CLBR_RDI);
+#endif
+
+	popq	%rdi
+	pax_force_retaddr
+	retq
+
+#ifdef CONFIG_PAX_KERNEXEC
+2:	GET_CR0_INTO_RDI
+	btr	$X86_CR0_WP_BIT,%rdi
+	jnc	4f
+	ljmpq	__KERNEL_CS,3f
+3:	SET_RDI_INTO_CR0
+	jmp	1b
+4:	ud2
+	jmp	4b
+#endif
+ENDPROC(pax_exit_kernel)
+#endif
+
+	.macro pax_enter_kernel_user
+	pax_set_fptr_mask
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	call	pax_enter_kernel_user
+#endif
+	.endm
+
+	.macro pax_exit_kernel_user
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	call	pax_exit_kernel_user
+#endif
+#ifdef CONFIG_PAX_RANDKSTACK
+	pushq	%rax
+	pushq	%r11
+	call	pax_randomize_kstack
+	popq	%r11
+	popq	%rax
+#endif
+	.endm
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+ENTRY(pax_enter_kernel_user)
+	pushq	%rdi
+	pushq	%rbx
+
+#ifdef CONFIG_PARAVIRT
+	PV_SAVE_REGS(CLBR_RDI)
+#endif
+
+	ALTERNATIVE "jmp 111f", "", X86_FEATURE_PCID
+	GET_CR3_INTO_RDI
+	cmp	$1,%dil
+	jnz	4f
+	sub	$4097,%rdi
+	bts	$63,%rdi
+	SET_RDI_INTO_CR3
+	jmp	3f
+111:
+
+	GET_CR3_INTO_RDI
+	mov	%rdi,%rbx
+	add	$__START_KERNEL_map,%rbx
+	sub	phys_base(%rip),%rbx
+
+#ifdef CONFIG_PARAVIRT
+	cmpl	$0, pv_info+PARAVIRT_enabled
+	jz	1f
+	pushq %rdi
+	i = 0
+	.rept USER_PGD_PTRS
+	mov	i*8(%rbx),%rsi
+	mov	$0,%sil
+	lea	i*8(%rbx),%rdi
+	call	PARA_INDIRECT(pv_mmu_ops+PV_MMU_set_pgd_batched)
+	i = i + 1
+	.endr
+	popq	%rdi
+	jmp	2f
+1:
+#endif
+
+	i = 0
+	.rept USER_PGD_PTRS
+	movb	$0,i*8(%rbx)
+	i = i + 1
+	.endr
+
+2:	SET_RDI_INTO_CR3
+
+#ifdef CONFIG_PAX_KERNEXEC
+	GET_CR0_INTO_RDI
+	bts	$X86_CR0_WP_BIT,%rdi
+	SET_RDI_INTO_CR0
+#endif
+
+3:
+
+#ifdef CONFIG_PARAVIRT
+	PV_RESTORE_REGS(CLBR_RDI)
+#endif
+
+	popq	%rbx
+	popq	%rdi
+	pax_force_retaddr
+	retq
+4:	ud2
+ENDPROC(pax_enter_kernel_user)
+
+ENTRY(pax_exit_kernel_user)
+	pushq	%rdi
+	pushq	%rbx
+
+#ifdef CONFIG_PARAVIRT
+	PV_SAVE_REGS(CLBR_RDI)
+#endif
+
+	GET_CR3_INTO_RDI
+	ALTERNATIVE "jmp 1f", "", X86_FEATURE_PCID
+	cmp	$0,%dil
+	jnz	3f
+	add	$4097,%rdi
+	bts	$63,%rdi
+	SET_RDI_INTO_CR3
+	jmp	2f
+1:
+
+	mov	%rdi,%rbx
+
+#ifdef CONFIG_PAX_KERNEXEC
+	GET_CR0_INTO_RDI
+	btr	$X86_CR0_WP_BIT,%rdi
+	jnc	3f
+	SET_RDI_INTO_CR0
+#endif
+
+	add	$__START_KERNEL_map,%rbx
+	sub	phys_base(%rip),%rbx
+
+#ifdef CONFIG_PARAVIRT
+	cmpl	$0, pv_info+PARAVIRT_enabled
+	jz	1f
+	i = 0
+	.rept USER_PGD_PTRS
+	mov	i*8(%rbx),%rsi
+	mov	$0x67,%sil
+	lea	i*8(%rbx),%rdi
+	call	PARA_INDIRECT(pv_mmu_ops+PV_MMU_set_pgd_batched)
+	i = i + 1
+	.endr
+	jmp	2f
+1:
+#endif
+
+	i = 0
+	.rept USER_PGD_PTRS
+	movb	$0x67,i*8(%rbx)
+	i = i + 1
+	.endr
+2:
+
+#ifdef CONFIG_PARAVIRT
+	PV_RESTORE_REGS(CLBR_RDI)
+#endif
+
+	popq	%rbx
+	popq	%rdi
+	pax_force_retaddr
+	retq
+3:	ud2
+ENDPROC(pax_exit_kernel_user)
+#endif
+
+	.macro pax_enter_kernel_nmi
+	pax_set_fptr_mask
+
+#ifdef CONFIG_PAX_KERNEXEC
+	GET_CR0_INTO_RDI
+	bts	$X86_CR0_WP_BIT,%rdi
+	jc	110f
+	SET_RDI_INTO_CR0
+	or	$2,%ebx
+110:
+#endif
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	ALTERNATIVE "jmp 111f", "", X86_FEATURE_PCID
+	GET_CR3_INTO_RDI
+	cmp	$0,%dil
+	jz	111f
+	sub	$4097,%rdi
+	or	$4,%ebx
+	bts	$63,%rdi
+	SET_RDI_INTO_CR3
+	mov	$__UDEREF_KERNEL_DS,%edi
+	mov	%edi,%ss
+111:
+#endif
+	.endm
+
+	.macro pax_exit_kernel_nmi
+#ifdef CONFIG_PAX_KERNEXEC
+	btr	$1,%ebx
+	jnc	110f
+	GET_CR0_INTO_RDI
+	btr	$X86_CR0_WP_BIT,%rdi
+	SET_RDI_INTO_CR0
+110:
+#endif
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	ALTERNATIVE "jmp 111f", "", X86_FEATURE_PCID
+	btr	$2,%ebx
+	jnc	111f
+	GET_CR3_INTO_RDI
+	add	$4097,%rdi
+	bts	$63,%rdi
+	SET_RDI_INTO_CR3
+	mov	$__KERNEL_DS,%edi
+	mov	%edi,%ss
+111:
+#endif
+	.endm
+
+	.macro pax_erase_kstack
+#ifdef CONFIG_PAX_MEMORY_STACKLEAK
+	call	pax_erase_kstack
+#endif
+	.endm
+
+#ifdef CONFIG_PAX_MEMORY_STACKLEAK
+ENTRY(pax_erase_kstack)
+	pushq	%rdi
+	pushq	%rcx
+	pushq	%rax
+	pushq	%r11
+
+	GET_THREAD_INFO(%r11)
+	mov	TI_lowest_stack(%r11), %rdi
+	mov	$-0xBEEF, %rax
+	std
+
+1:	mov	%edi, %ecx
+	and	$THREAD_SIZE_asm - 1, %ecx
+	shr	$3, %ecx
+	repne	scasq
+	jecxz	2f
+
+	cmp	$2*8, %ecx
+	jc	2f
+
+	mov	$2*8, %ecx
+	repe	scasq
+	jecxz	2f
+	jne	1b
+
+2:	cld
+	or	$2*8, %rdi
+	mov	%esp, %ecx
+	sub	%edi, %ecx
+
+	cmp	$THREAD_SIZE_asm, %rcx
+	jb	3f
+	ud2
+3:
+
+	shr	$3, %ecx
+	rep	stosq
+
+	mov	TI_task_thread_sp0(%r11), %rdi
+	sub	$256, %rdi
+	mov	%rdi, TI_lowest_stack(%r11)
+
+	popq	%r11
+	popq	%rax
+	popq	%rcx
+	popq	%rdi
+	pax_force_retaddr
+	ret
+ENDPROC(pax_erase_kstack)
+#endif
+
 .macro TRACE_IRQS_IRETQ
 #ifdef CONFIG_TRACE_IRQFLAGS
 	bt	$9, EFLAGS(%rsp)		/* interrupts off? */
@@ -88,7 +486,7 @@ ENDPROC(native_usergs_sysret64)
 .endm
 
 .macro TRACE_IRQS_IRETQ_DEBUG
-	bt	$9, EFLAGS(%rsp)		/* interrupts off? */
+	bt	$X86_EFLAGS_IF_BIT, EFLAGS(%rsp)	/* interrupts off? */
 	jnc	1f
 	TRACE_IRQS_ON_DEBUG
 1:
@@ -175,11 +573,22 @@ GLOBAL(entry_SYSCALL_64_after_swapgs)
 	pushq	%r11				/* pt_regs->r11 */
 	sub	$(6*8), %rsp			/* pt_regs->bp, bx, r12-15 not saved */
 
+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
+	movq	%r12, R12(%rsp)
+#endif
+
+	pax_enter_kernel_user
+
+#ifdef CONFIG_PAX_RANDKSTACK
+	pax_erase_kstack
+#endif
+
 	/*
 	 * If we need to do entry work or if we guess we'll need to do
 	 * exit work, go straight to the slow path.
 	 */
-	testl	$_TIF_WORK_SYSCALL_ENTRY|_TIF_ALLWORK_MASK, ASM_THREAD_INFO(TI_flags, %rsp, SIZEOF_PTREGS)
+	GET_THREAD_INFO(%rcx)
+	testl	$_TIF_WORK_SYSCALL_ENTRY|_TIF_ALLWORK_MASK, TI_flags(%rcx)
 	jnz	entry_SYSCALL64_slow_path
 
 entry_SYSCALL_64_fastpath:
@@ -217,9 +626,13 @@ entry_SYSCALL_64_fastpath:
 	 */
 	DISABLE_INTERRUPTS(CLBR_NONE)
 	TRACE_IRQS_OFF
-	testl	$_TIF_ALLWORK_MASK, ASM_THREAD_INFO(TI_flags, %rsp, SIZEOF_PTREGS)
+	GET_THREAD_INFO(%rcx)
+	testl	$_TIF_ALLWORK_MASK, TI_flags(%rcx)
 	jnz	1f
 
+	pax_exit_kernel_user
+	pax_erase_kstack
+
 	LOCKDEP_SYS_EXIT
 	TRACE_IRQS_ON		/* user mode is traced as IRQs on */
 	movq	RIP(%rsp), %rcx
@@ -248,6 +661,9 @@ entry_SYSCALL64_slow_path:
 	call	do_syscall_64		/* returns with IRQs disabled */
 
 return_from_SYSCALL_64:
+	pax_exit_kernel_user
+	pax_erase_kstack
+
 	RESTORE_EXTRA_REGS
 	TRACE_IRQS_IRETQ		/* we're about to change IF */
 
@@ -322,7 +738,7 @@ syscall_return_via_sysret:
 opportunistic_sysret_failed:
 	SWAPGS
 	jmp	restore_c_regs_and_iret
-END(entry_SYSCALL_64)
+ENDPROC(entry_SYSCALL_64)
 
 ENTRY(stub_ptregs_64)
 	/*
@@ -349,13 +765,13 @@ ENTRY(stub_ptregs_64)
 1:
 	/* Called from C */
 	jmp	*%rax				/* called from C */
-END(stub_ptregs_64)
+ENDPROC(stub_ptregs_64)
 
 .macro ptregs_stub func
 ENTRY(ptregs_\func)
 	leaq	\func(%rip), %rax
 	jmp	stub_ptregs_64
-END(ptregs_\func)
+ENDPROC(ptregs_\func)
 .endm
 
 /* Instantiate ptregs_stub for each ptregs-using syscall */
@@ -400,10 +816,12 @@ ENTRY(ret_from_fork)
 1:
 	movq	%rsp, %rdi
 	call	syscall_return_slowpath	/* returns with IRQs disabled */
+	pax_exit_kernel_user
+	pax_erase_kstack
 	TRACE_IRQS_ON			/* user mode is traced as IRQS on */
 	SWAPGS
 	jmp	restore_regs_and_iret
-END(ret_from_fork)
+ENDPROC(ret_from_fork)
 
 /*
  * Build the entry stubs with some assembler magic.
@@ -418,7 +836,7 @@ ENTRY(irq_entries_start)
 	jmp	common_interrupt
 	.align	8
     .endr
-END(irq_entries_start)
+ENDPROC(irq_entries_start)
 
 /*
  * Interrupt entry/exit.
@@ -444,6 +862,12 @@ END(irq_entries_start)
 	 */
 	SWAPGS
 
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	pax_enter_kernel_user
+#else
+	pax_enter_kernel
+#endif
+
 	/*
 	 * We need to tell lockdep that IRQs are off.  We can't do this until
 	 * we fix gsbase, and we should do it before enter_from_user_mode
@@ -456,7 +880,9 @@ END(irq_entries_start)
 
 	CALL_enter_from_user_mode
 
-1:
+	jmp	2f
+1:	pax_enter_kernel
+2:
 	/*
 	 * Save previous stack pointer, optionally switch to interrupt stack.
 	 * irq_count is used to check if a CPU is already on an interrupt stack
@@ -468,6 +894,7 @@ END(irq_entries_start)
 	incl	PER_CPU_VAR(irq_count)
 	cmovzq	PER_CPU_VAR(irq_stack_ptr), %rsp
 	pushq	%rdi
+
 	/* We entered an interrupt context - irqs are off: */
 	TRACE_IRQS_OFF
 
@@ -499,6 +926,8 @@ ret_from_intr:
 GLOBAL(retint_user)
 	mov	%rsp,%rdi
 	call	prepare_exit_to_usermode
+	pax_exit_kernel_user
+#	pax_erase_kstack
 	TRACE_IRQS_IRETQ
 	SWAPGS
 	jmp	restore_regs_and_iret
@@ -516,6 +945,21 @@ retint_kernel:
 	jmp	0b
 1:
 #endif
+
+	pax_exit_kernel
+
+#if defined(CONFIG_EFI) && defined(CONFIG_PAX_KERNEXEC)
+	/* This is a quirk to allow IRQs/NMIs/MCEs during early EFI setup,
+	 * namely calling EFI runtime services with a phys mapping. We're
+	 * starting off with NOPs and patch in the real instrumentation
+	 * (BTS/OR) before starting any userland process; even before starting
+	 * up the APs.
+	 */
+	ALTERNATIVE "", "pax_force_retaddr 16*8", X86_FEATURE_ALWAYS
+#else
+	pax_force_retaddr RIP
+#endif
+
 	/*
 	 * The iretq could re-enable interrupts:
 	 */
@@ -559,15 +1003,15 @@ native_irq_return_ldt:
 	SWAPGS
 	movq	PER_CPU_VAR(espfix_waddr), %rdi
 	movq	%rax, (0*8)(%rdi)		/* RAX */
-	movq	(2*8)(%rsp), %rax		/* RIP */
+	movq	(2*8 + RIP-RIP)(%rsp), %rax	/* RIP */
 	movq	%rax, (1*8)(%rdi)
-	movq	(3*8)(%rsp), %rax		/* CS */
+	movq	(2*8 + CS-RIP)(%rsp), %rax	/* CS */
 	movq	%rax, (2*8)(%rdi)
-	movq	(4*8)(%rsp), %rax		/* RFLAGS */
+	movq	(2*8 + EFLAGS-RIP)(%rsp), %rax	/* RFLAGS */
 	movq	%rax, (3*8)(%rdi)
-	movq	(6*8)(%rsp), %rax		/* SS */
+	movq	(2*8 + SS-RIP)(%rsp), %rax	/* SS */
 	movq	%rax, (5*8)(%rdi)
-	movq	(5*8)(%rsp), %rax		/* RSP */
+	movq	(2*8 + RSP-RIP)(%rsp), %rax	/* RSP */
 	movq	%rax, (4*8)(%rdi)
 	andl	$0xffff0000, %eax
 	popq	%rdi
@@ -577,7 +1021,7 @@ native_irq_return_ldt:
 	popq	%rax
 	jmp	native_irq_return_iret
 #endif
-END(common_interrupt)
+ENDPROC(common_interrupt)
 
 /*
  * APIC interrupts.
@@ -589,7 +1033,7 @@ ENTRY(\sym)
 .Lcommon_\sym:
 	interrupt \do_sym
 	jmp	ret_from_intr
-END(\sym)
+ENDPROC(\sym)
 .endm
 
 #ifdef CONFIG_TRACING
@@ -654,7 +1098,7 @@ apicinterrupt IRQ_WORK_VECTOR			irq_work_interrupt		smp_irq_work_interrupt
 /*
  * Exception entry points.
  */
-#define CPU_TSS_IST(x) PER_CPU_VAR(cpu_tss) + (TSS_ist + ((x) - 1) * 8)
+#define CPU_TSS_IST(x) (TSS_ist + ((x) - 1) * 8)(%r13)
 
 .macro idtentry sym do_sym has_error_code:req paranoid=0 shift_ist=-1
 ENTRY(\sym)
@@ -701,6 +1145,12 @@ ENTRY(\sym)
 	.endif
 
 	.if \shift_ist != -1
+#ifdef CONFIG_SMP
+	imul	$TSS_size, PER_CPU_VAR(cpu_number), %r13d
+	leaq	cpu_tss(%r13), %r13
+#else
+	leaq	cpu_tss(%rip), %r13
+#endif
 	subq	$EXCEPTION_STKSZ, CPU_TSS_IST(\shift_ist)
 	.endif
 
@@ -744,7 +1194,7 @@ ENTRY(\sym)
 
 	jmp	error_exit			/* %ebx: no swapgs flag */
 	.endif
-END(\sym)
+ENDPROC(\sym)
 .endm
 
 #ifdef CONFIG_TRACING
@@ -786,8 +1236,9 @@ gs_change:
 2:	mfence					/* workaround */
 	SWAPGS
 	popfq
+	pax_force_retaddr
 	ret
-END(native_load_gs_index)
+ENDPROC(native_load_gs_index)
 
 	_ASM_EXTABLE(gs_change, bad_gs)
 	.section .fixup, "ax"
@@ -809,8 +1260,9 @@ ENTRY(do_softirq_own_stack)
 	call	__do_softirq
 	leaveq
 	decl	PER_CPU_VAR(irq_count)
+	pax_force_retaddr
 	ret
-END(do_softirq_own_stack)
+ENDPROC(do_softirq_own_stack)
 
 #ifdef CONFIG_XEN
 idtentry xen_hypervisor_callback xen_do_hypervisor_callback has_error_code=0
@@ -846,7 +1298,7 @@ ENTRY(xen_do_hypervisor_callback)		/* do_hypervisor_callback(struct *pt_regs) */
 	call	xen_maybe_preempt_hcall
 #endif
 	jmp	error_exit
-END(xen_do_hypervisor_callback)
+ENDPROC(xen_do_hypervisor_callback)
 
 /*
  * Hypervisor uses this for application faults while it executes.
@@ -891,7 +1343,7 @@ ENTRY(xen_failsafe_callback)
 	SAVE_C_REGS
 	SAVE_EXTRA_REGS
 	jmp	error_exit
-END(xen_failsafe_callback)
+ENDPROC(xen_failsafe_callback)
 
 apicinterrupt3 HYPERVISOR_CALLBACK_VECTOR \
 	xen_hvm_callback_vector xen_evtchn_do_upcall
@@ -903,7 +1355,7 @@ apicinterrupt3 HYPERVISOR_CALLBACK_VECTOR \
 	hyperv_callback_vector hyperv_vector_handler
 #endif /* CONFIG_HYPERV */
 
-idtentry debug			do_debug		has_error_code=0	paranoid=1 shift_ist=DEBUG_STACK
+idtentry int1			do_debug		has_error_code=0	paranoid=1 shift_ist=DEBUG_STACK
 idtentry int3			do_int3			has_error_code=0	paranoid=1 shift_ist=DEBUG_STACK
 idtentry stack_segment		do_stack_segment	has_error_code=1
 
@@ -940,8 +1392,34 @@ ENTRY(paranoid_entry)
 	js	1f				/* negative -> in kernel */
 	SWAPGS
 	xorl	%ebx, %ebx
-1:	ret
-END(paranoid_entry)
+1:
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	testb	$3, CS+8(%rsp)
+	jz	1f
+	pax_enter_kernel_user
+	jmp	2f
+#endif
+1:	pax_enter_kernel
+2:
+	pax_force_retaddr
+	ret
+ENDPROC(paranoid_entry)
+
+ENTRY(paranoid_entry_nmi)
+	cld
+	SAVE_C_REGS 8
+	SAVE_EXTRA_REGS 8
+	movl	$1, %ebx
+	movl	$MSR_GS_BASE, %ecx
+	rdmsr
+	testl	%edx, %edx
+	js	1f	/* negative -> in kernel */
+	SWAPGS
+	xorl	%ebx, %ebx
+1:	pax_enter_kernel_nmi
+	pax_force_retaddr
+	ret
+ENDPROC(paranoid_entry_nmi)
 
 /*
  * "Paranoid" exit path from exception stack.  This is invoked
@@ -958,19 +1436,26 @@ END(paranoid_entry)
 ENTRY(paranoid_exit)
 	DISABLE_INTERRUPTS(CLBR_NONE)
 	TRACE_IRQS_OFF_DEBUG
-	testl	%ebx, %ebx			/* swapgs needed? */
+	testl	$1, %ebx			/* swapgs needed? */
 	jnz	paranoid_exit_no_swapgs
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	pax_exit_kernel_user
+#else
+	pax_exit_kernel
+#endif
 	TRACE_IRQS_IRETQ
 	SWAPGS_UNSAFE_STACK
 	jmp	paranoid_exit_restore
 paranoid_exit_no_swapgs:
+	pax_exit_kernel
 	TRACE_IRQS_IRETQ_DEBUG
 paranoid_exit_restore:
 	RESTORE_EXTRA_REGS
 	RESTORE_C_REGS
 	REMOVE_PT_GPREGS_FROM_STACK 8
+	pax_force_retaddr_bts
 	INTERRUPT_RETURN
-END(paranoid_exit)
+ENDPROC(paranoid_exit)
 
 /*
  * Save all registers in pt_regs, and switch gs if needed.
@@ -984,13 +1469,18 @@ ENTRY(error_entry)
 	testb	$3, CS+8(%rsp)
 	jz	.Lerror_kernelspace
 
-.Lerror_entry_from_usermode_swapgs:
 	/*
 	 * We entered from user mode or we're pretending to have entered
 	 * from user mode due to an IRET fault.
 	 */
 	SWAPGS
 
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	pax_enter_kernel_user
+#else
+	pax_enter_kernel
+#endif
+
 .Lerror_entry_from_usermode_after_swapgs:
 	/*
 	 * We need to tell lockdep that IRQs are off.  We can't do this until
@@ -999,10 +1489,12 @@ ENTRY(error_entry)
 	 */
 	TRACE_IRQS_OFF
 	CALL_enter_from_user_mode
+	pax_force_retaddr
 	ret
 
 .Lerror_entry_done:
 	TRACE_IRQS_OFF
+	pax_force_retaddr
 	ret
 
 	/*
@@ -1020,14 +1512,16 @@ ENTRY(error_entry)
 	cmpq	%rax, RIP+8(%rsp)
 	je	.Lbstep_iret
 	cmpq	$gs_change, RIP+8(%rsp)
-	jne	.Lerror_entry_done
+	jne	1f
 
 	/*
 	 * hack: gs_change can fail with user gsbase.  If this happens, fix up
 	 * gsbase and proceed.  We'll fix up the exception and land in
 	 * gs_change's error handler with kernel gsbase.
 	 */
-	jmp	.Lerror_entry_from_usermode_swapgs
+	SWAPGS
+1:	pax_enter_kernel
+	jmp	.Lerror_entry_done
 
 .Lbstep_iret:
 	/* Fix truncated RIP */
@@ -1041,6 +1535,12 @@ ENTRY(error_entry)
 	 */
 	SWAPGS
 
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	pax_enter_kernel_user
+#else
+	pax_enter_kernel
+#endif
+
 	/*
 	 * Pretend that the exception came from user mode: set up pt_regs
 	 * as if we faulted immediately after IRET and clear EBX so that
@@ -1051,11 +1551,11 @@ ENTRY(error_entry)
 	mov	%rax, %rsp
 	decl	%ebx
 	jmp	.Lerror_entry_from_usermode_after_swapgs
-END(error_entry)
+ENDPROC(error_entry)
 
 
 /*
- * On entry, EBS is a "return to kernel mode" flag:
+ * On entry, EBX is a "return to kernel mode" flag:
  *   1: already in kernel mode, don't need SWAPGS
  *   0: user gsbase is loaded, we need SWAPGS and standard preparation for return to usermode
  */
@@ -1063,10 +1563,10 @@ ENTRY(error_exit)
 	movl	%ebx, %eax
 	DISABLE_INTERRUPTS(CLBR_NONE)
 	TRACE_IRQS_OFF
-	testl	%eax, %eax
+	testl	$1, %eax
 	jnz	retint_kernel
 	jmp	retint_user
-END(error_exit)
+ENDPROC(error_exit)
 
 /* Runs on exception stack */
 ENTRY(nmi)
@@ -1120,6 +1620,8 @@ ENTRY(nmi)
 	 * other IST entries.
 	 */
 
+	ASM_CLAC
+
 	/* Use %rdx as our temp variable throughout */
 	pushq	%rdx
 
@@ -1163,6 +1665,12 @@ ENTRY(nmi)
 	pushq	%r14		/* pt_regs->r14 */
 	pushq	%r15		/* pt_regs->r15 */
 
+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
+	xorl	%ebx, %ebx
+#endif
+
+	pax_enter_kernel_nmi
+
 	/*
 	 * At this point we no longer need to worry about stack damage
 	 * due to nesting -- we're on the normal thread stack and we're
@@ -1173,12 +1681,19 @@ ENTRY(nmi)
 	movq	$-1, %rsi
 	call	do_nmi
 
+	pax_exit_kernel_nmi
+
 	/*
 	 * Return back to user mode.  We must *not* do the normal exit
 	 * work, because we don't want to enable interrupts.  Fortunately,
 	 * do_nmi doesn't modify pt_regs.
 	 */
 	SWAPGS
+
+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
+	movq	RBX(%rsp), %rbx
+#endif
+
 	jmp	restore_c_regs_and_iret
 
 .Lnmi_from_kernel:
@@ -1300,6 +1815,7 @@ nested_nmi_out:
 	popq	%rdx
 
 	/* We are returning to kernel mode, so this cannot result in a fault. */
+#	pax_force_retaddr_bts
 	INTERRUPT_RETURN
 
 first_nmi:
@@ -1328,7 +1844,7 @@ first_nmi:
 	pushq	%rsp		/* RSP (minus 8 because of the previous push) */
 	addq	$8, (%rsp)	/* Fix up RSP */
 	pushfq			/* RFLAGS */
-	pushq	$__KERNEL_CS	/* CS */
+	pushq	4*8(%rsp)	/* CS */
 	pushq	$1f		/* RIP */
 	INTERRUPT_RETURN	/* continues at repeat_nmi below */
 1:
@@ -1373,20 +1889,22 @@ end_repeat_nmi:
 	ALLOC_PT_GPREGS_ON_STACK
 
 	/*
-	 * Use paranoid_entry to handle SWAPGS, but no need to use paranoid_exit
+	 * Use paranoid_entry_nmi to handle SWAPGS, but no need to use paranoid_exit
 	 * as we should not be calling schedule in NMI context.
 	 * Even with normal interrupts enabled. An NMI should not be
 	 * setting NEED_RESCHED or anything that normal interrupts and
 	 * exceptions might do.
 	 */
-	call	paranoid_entry
+	call	paranoid_entry_nmi
 
 	/* paranoidentry do_nmi, 0; without TRACE_IRQS_OFF */
 	movq	%rsp, %rdi
 	movq	$-1, %rsi
 	call	do_nmi
 
-	testl	%ebx, %ebx			/* swapgs needed? */
+	pax_exit_kernel_nmi
+
+	testl	$1, %ebx			/* swapgs needed? */
 	jnz	nmi_restore
 nmi_swapgs:
 	SWAPGS_UNSAFE_STACK
@@ -1397,6 +1915,8 @@ nmi_restore:
 	/* Point RSP at the "iret" frame. */
 	REMOVE_PT_GPREGS_FROM_STACK 6*8
 
+	pax_force_retaddr_bts
+
 	/*
 	 * Clear "NMI executing".  Set DF first so that we can easily
 	 * distinguish the remaining code between here and IRET from
@@ -1414,9 +1934,9 @@ nmi_restore:
 	 * mode, so this cannot result in a fault.
 	 */
 	INTERRUPT_RETURN
-END(nmi)
+ENDPROC(nmi)
 
 ENTRY(ignore_sysret)
 	mov	$-ENOSYS, %eax
 	sysret
-END(ignore_sysret)
+ENDPROC(ignore_sysret)
diff --git a/arch/x86/entry/entry_64_compat.S b/arch/x86/entry/entry_64_compat.S
index 847f2f0..5f601b1 100644
--- a/arch/x86/entry/entry_64_compat.S
+++ b/arch/x86/entry/entry_64_compat.S
@@ -13,11 +13,39 @@
 #include <asm/irqflags.h>
 #include <asm/asm.h>
 #include <asm/smap.h>
+#include <asm/pgtable.h>
 #include <linux/linkage.h>
 #include <linux/err.h>
+#include <asm/alternative-asm.h>
 
 	.section .entry.text, "ax"
 
+	.macro pax_enter_kernel_user
+	pax_set_fptr_mask
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	call	pax_enter_kernel_user
+#endif
+	.endm
+
+	.macro pax_exit_kernel_user
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	call	pax_exit_kernel_user
+#endif
+#ifdef CONFIG_PAX_RANDKSTACK
+	pushq	%rax
+	pushq	%r11
+	call	pax_randomize_kstack
+	popq	%r11
+	popq	%rax
+#endif
+	.endm
+
+	.macro pax_erase_kstack
+#ifdef CONFIG_PAX_MEMORY_STACKLEAK
+	call	pax_erase_kstack
+#endif
+	.endm
+
 /*
  * 32-bit SYSENTER entry.
  *
@@ -72,26 +100,36 @@ ENTRY(entry_SYSENTER_compat)
 	pushfq				/* pt_regs->flags (except IF = 0) */
 	orl	$X86_EFLAGS_IF, (%rsp)	/* Fix saved flags */
 	pushq	$__USER32_CS		/* pt_regs->cs */
-	xorq    %r8,%r8
-	pushq	%r8			/* pt_regs->ip = 0 (placeholder) */
+	pushq	$0			/* pt_regs->ip = 0 (placeholder) */
 	pushq	%rax			/* pt_regs->orig_ax */
+	xorl	%eax,%eax
 	pushq	%rdi			/* pt_regs->di */
 	pushq	%rsi			/* pt_regs->si */
 	pushq	%rdx			/* pt_regs->dx */
 	pushq	%rcx			/* pt_regs->cx */
 	pushq	$-ENOSYS		/* pt_regs->ax */
-	pushq   %r8                     /* pt_regs->r8  = 0 */
-	pushq   %r8                     /* pt_regs->r9  = 0 */
-	pushq   %r8                     /* pt_regs->r10 = 0 */
-	pushq   %r8                     /* pt_regs->r11 = 0 */
+	pushq   %rax                    /* pt_regs->r8  = 0 */
+	pushq   %rax                    /* pt_regs->r9  = 0 */
+	pushq   %rax                    /* pt_regs->r10 = 0 */
+	pushq   %rax                    /* pt_regs->r11 = 0 */
 	pushq   %rbx                    /* pt_regs->rbx */
 	pushq   %rbp                    /* pt_regs->rbp (will be overwritten) */
-	pushq   %r8                     /* pt_regs->r12 = 0 */
-	pushq   %r8                     /* pt_regs->r13 = 0 */
-	pushq   %r8                     /* pt_regs->r14 = 0 */
-	pushq   %r8                     /* pt_regs->r15 = 0 */
+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
+	pushq   %r12                    /* pt_regs->r12 */
+#else
+	pushq   %rax                    /* pt_regs->r12 = 0 */
+#endif
+	pushq   %rax                    /* pt_regs->r13 = 0 */
+	pushq   %rax                    /* pt_regs->r14 = 0 */
+	pushq   %rax                    /* pt_regs->r15 = 0 */
 	cld
 
+	pax_enter_kernel_user
+
+#ifdef CONFIG_PAX_RANDKSTACK
+	pax_erase_kstack
+#endif
+
 	/*
 	 * SYSENTER doesn't filter flags, so we need to clear NT and AC
 	 * ourselves.  To save a few cycles, we can check whether
@@ -205,17 +243,27 @@ ENTRY(entry_SYSCALL_compat)
 	pushq	%rdx			/* pt_regs->dx */
 	pushq	%rbp			/* pt_regs->cx (stashed in bp) */
 	pushq	$-ENOSYS		/* pt_regs->ax */
-	xorq    %r8,%r8
-	pushq   %r8                     /* pt_regs->r8  = 0 */
-	pushq   %r8                     /* pt_regs->r9  = 0 */
-	pushq   %r8                     /* pt_regs->r10 = 0 */
-	pushq   %r8                     /* pt_regs->r11 = 0 */
+	xorl    %eax,%eax
+	pushq   %rax                    /* pt_regs->r8  = 0 */
+	pushq   %rax                    /* pt_regs->r9  = 0 */
+	pushq   %rax                    /* pt_regs->r10 = 0 */
+	pushq   %rax                    /* pt_regs->r11 = 0 */
 	pushq   %rbx                    /* pt_regs->rbx */
 	pushq   %rbp                    /* pt_regs->rbp (will be overwritten) */
-	pushq   %r8                     /* pt_regs->r12 = 0 */
-	pushq   %r8                     /* pt_regs->r13 = 0 */
-	pushq   %r8                     /* pt_regs->r14 = 0 */
-	pushq   %r8                     /* pt_regs->r15 = 0 */
+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
+	pushq   %r12                    /* pt_regs->r12 */
+#else
+	pushq   %rax                    /* pt_regs->r12 = 0 */
+#endif
+	pushq   %rax                    /* pt_regs->r13 = 0 */
+	pushq   %rax                    /* pt_regs->r14 = 0 */
+	pushq   %rax                    /* pt_regs->r15 = 0 */
+
+	pax_enter_kernel_user
+
+#ifdef CONFIG_PAX_RANDKSTACK
+	pax_erase_kstack
+#endif
 
 	/*
 	 * User mode is traced as though IRQs are on, and SYSENTER
@@ -231,11 +279,18 @@ ENTRY(entry_SYSCALL_compat)
 
 	/* Opportunistic SYSRET */
 sysret32_from_system_call:
+	pax_exit_kernel_user
+	pax_erase_kstack
 	TRACE_IRQS_ON			/* User mode traces as IRQs on. */
 	movq	RBX(%rsp), %rbx		/* pt_regs->rbx */
 	movq	RBP(%rsp), %rbp		/* pt_regs->rbp */
 	movq	EFLAGS(%rsp), %r11	/* pt_regs->flags (in r11) */
 	movq	RIP(%rsp), %rcx		/* pt_regs->ip (in rcx) */
+
+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
+	movq	R12(%rsp), %r12
+#endif
+
 	addq	$RAX, %rsp		/* Skip r8-r15 */
 	popq	%rax			/* pt_regs->rax */
 	popq	%rdx			/* Skip pt_regs->cx */
@@ -264,7 +319,7 @@ sysret32_from_system_call:
 	movq	RSP-ORIG_RAX(%rsp), %rsp
 	swapgs
 	sysretl
-END(entry_SYSCALL_compat)
+ENDPROC(entry_SYSCALL_compat)
 
 /*
  * 32-bit legacy system call entry.
@@ -316,11 +371,11 @@ ENTRY(entry_INT80_compat)
 	pushq	%rdx			/* pt_regs->dx */
 	pushq	%rcx			/* pt_regs->cx */
 	pushq	$-ENOSYS		/* pt_regs->ax */
-	xorq    %r8,%r8
-	pushq   %r8                     /* pt_regs->r8  = 0 */
-	pushq   %r8                     /* pt_regs->r9  = 0 */
-	pushq   %r8                     /* pt_regs->r10 = 0 */
-	pushq   %r8                     /* pt_regs->r11 = 0 */
+	xorl    %eax,%eax
+	pushq   %rax                    /* pt_regs->r8  = 0 */
+	pushq   %rax                    /* pt_regs->r9  = 0 */
+	pushq   %rax                    /* pt_regs->r10 = 0 */
+	pushq   %rax                    /* pt_regs->r11 = 0 */
 	pushq   %rbx                    /* pt_regs->rbx */
 	pushq   %rbp                    /* pt_regs->rbp */
 	pushq   %r12                    /* pt_regs->r12 */
@@ -329,6 +384,12 @@ ENTRY(entry_INT80_compat)
 	pushq   %r15                    /* pt_regs->r15 */
 	cld
 
+	pax_enter_kernel_user
+
+#ifdef CONFIG_PAX_RANDKSTACK
+	pax_erase_kstack
+#endif
+
 	/*
 	 * User mode is traced as though IRQs are on, and the interrupt
 	 * gate turned them off.
@@ -340,10 +401,12 @@ ENTRY(entry_INT80_compat)
 .Lsyscall_32_done:
 
 	/* Go back to user mode. */
+	pax_exit_kernel_user
+	pax_erase_kstack
 	TRACE_IRQS_ON
 	SWAPGS
 	jmp	restore_regs_and_iret
-END(entry_INT80_compat)
+ENDPROC(entry_INT80_compat)
 
 	ALIGN
 GLOBAL(stub32_clone)
diff --git a/arch/x86/entry/thunk_64.S b/arch/x86/entry/thunk_64.S
index 98df1fa..b2ef8bd 100644
--- a/arch/x86/entry/thunk_64.S
+++ b/arch/x86/entry/thunk_64.S
@@ -9,6 +9,7 @@
 #include "calling.h"
 #include <asm/asm.h>
 #include <asm/frame.h>
+#include <asm/alternative-asm.h>
 
 	/* rdi:	arg1 ... normal C conventions. rax is saved/restored. */
 	.macro THUNK name, func, put_ret_addr_in_rdi=0
@@ -66,6 +67,7 @@ restore:
 	popq %rsi
 	popq %rdi
 	FRAME_END
+	pax_force_retaddr
 	ret
 	_ASM_NOKPROBE(restore)
 #endif
diff --git a/arch/x86/entry/vdso/Makefile b/arch/x86/entry/vdso/Makefile
index 6874da5..acbad90 100644
--- a/arch/x86/entry/vdso/Makefile
+++ b/arch/x86/entry/vdso/Makefile
@@ -75,7 +75,7 @@ CFL := $(PROFILING) -mcmodel=small -fPIC -O2 -fasynchronous-unwind-tables -m64 \
        -fno-omit-frame-pointer -foptimize-sibling-calls \
        -DDISABLE_BRANCH_PROFILING -DBUILD_VDSO
 
-$(vobjs): KBUILD_CFLAGS += $(CFL)
+$(vobjs): KBUILD_CFLAGS := $(filter-out $(GCC_PLUGINS_CFLAGS),$(KBUILD_CFLAGS)) $(CFL)
 
 #
 # vDSO code runs in userspace and -pg doesn't help with profiling anyway.
@@ -145,6 +145,7 @@ KBUILD_CFLAGS_32 := $(filter-out -m64,$(KBUILD_CFLAGS))
 KBUILD_CFLAGS_32 := $(filter-out -mcmodel=kernel,$(KBUILD_CFLAGS_32))
 KBUILD_CFLAGS_32 := $(filter-out -fno-pic,$(KBUILD_CFLAGS_32))
 KBUILD_CFLAGS_32 := $(filter-out -mfentry,$(KBUILD_CFLAGS_32))
+KBUILD_CFLAGS_32 := $(filter-out $(GCC_PLUGINS_CFLAGS),$(KBUILD_CFLAGS_32))
 KBUILD_CFLAGS_32 += -m32 -msoft-float -mregparm=0 -fpic
 KBUILD_CFLAGS_32 += $(call cc-option, -fno-stack-protector)
 KBUILD_CFLAGS_32 += $(call cc-option, -foptimize-sibling-calls)
@@ -168,7 +169,7 @@ quiet_cmd_vdso = VDSO    $@
 		       -Wl,-T,$(filter %.lds,$^) $(filter %.o,$^) && \
 		 sh $(srctree)/$(src)/checkundef.sh '$(NM)' '$@'
 
-VDSO_LDFLAGS = -fPIC -shared $(call cc-ldoption, -Wl$(comma)--hash-style=both) \
+VDSO_LDFLAGS = -fPIC -shared -Wl,--no-undefined $(call cc-ldoption, -Wl$(comma)--hash-style=both) \
 	$(call cc-ldoption, -Wl$(comma)--build-id) -Wl,-Bsymbolic $(LTO_CFLAGS)
 GCOV_PROFILE := n
 
diff --git a/arch/x86/entry/vdso/vclock_gettime.c b/arch/x86/entry/vdso/vclock_gettime.c
index 03c3eb7..23f58a5 100644
--- a/arch/x86/entry/vdso/vclock_gettime.c
+++ b/arch/x86/entry/vdso/vclock_gettime.c
@@ -330,5 +330,5 @@ notrace time_t __vdso_time(time_t *t)
 		*t = result;
 	return result;
 }
-int time(time_t *t)
+time_t time(time_t *t)
 	__attribute__((weak, alias("__vdso_time")));
diff --git a/arch/x86/entry/vdso/vdso2c.h b/arch/x86/entry/vdso/vdso2c.h
index 63a03bb..ee6bd34 100644
--- a/arch/x86/entry/vdso/vdso2c.h
+++ b/arch/x86/entry/vdso/vdso2c.h
@@ -12,7 +12,7 @@ static void BITSFUNC(go)(void *raw_addr, size_t raw_len,
 	unsigned long load_size = -1;  /* Work around bogus warning */
 	unsigned long mapping_size;
 	ELF(Ehdr) *hdr = (ELF(Ehdr) *)raw_addr;
-	int i;
+	unsigned int i;
 	unsigned long j;
 	ELF(Shdr) *symtab_hdr = NULL, *strtab_hdr, *secstrings_hdr,
 		*alt_sec = NULL;
@@ -83,7 +83,7 @@ static void BITSFUNC(go)(void *raw_addr, size_t raw_len,
 	for (i = 0;
 	     i < GET_LE(&symtab_hdr->sh_size) / GET_LE(&symtab_hdr->sh_entsize);
 	     i++) {
-		int k;
+		unsigned int k;
 		ELF(Sym) *sym = raw_addr + GET_LE(&symtab_hdr->sh_offset) +
 			GET_LE(&symtab_hdr->sh_entsize) * i;
 		const char *name = raw_addr + GET_LE(&strtab_hdr->sh_offset) +
diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86/entry/vdso/vma.c
index 10f7045..ebe6eb7 100644
--- a/arch/x86/entry/vdso/vma.c
+++ b/arch/x86/entry/vdso/vma.c
@@ -21,10 +21,7 @@
 #include <asm/hpet.h>
 #include <asm/desc.h>
 #include <asm/cpufeature.h>
-
-#if defined(CONFIG_X86_64)
-unsigned int __read_mostly vdso64_enabled = 1;
-#endif
+#include <asm/mman.h>
 
 void __init init_vdso_image(const struct vdso_image *image)
 {
@@ -90,7 +87,7 @@ static int vdso_fault(const struct vm_special_mapping *sm,
 {
 	const struct vdso_image *image = vma->vm_mm->context.vdso_image;
 
-	if (!image || (vmf->pgoff << PAGE_SHIFT) >= image->size)
+	if (!image || vmf->pgoff >= (image->size >> PAGE_SHIFT))
 		return VM_FAULT_SIGBUS;
 
 	vmf->page = virt_to_page(image->data + (vmf->pgoff << PAGE_SHIFT));
@@ -167,6 +164,11 @@ static int map_vdso(const struct vdso_image *image, bool calculate_addr)
 		.fault = vvar_fault,
 	};
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (mm->pax_flags & MF_PAX_RANDMMAP)
+		calculate_addr = false;
+#endif
+
 	if (calculate_addr) {
 		addr = vdso_addr(current->mm->start_stack,
 				 image->size - image->sym_vvar_start);
@@ -177,15 +179,15 @@ static int map_vdso(const struct vdso_image *image, bool calculate_addr)
 	down_write(&mm->mmap_sem);
 
 	addr = get_unmapped_area(NULL, addr,
-				 image->size - image->sym_vvar_start, 0, 0);
+				 image->size - image->sym_vvar_start, 0, MAP_EXECUTABLE);
 	if (IS_ERR_VALUE(addr)) {
 		ret = addr;
 		goto up_fail;
 	}
 
 	text_start = addr - image->sym_vvar_start;
-	current->mm->context.vdso = (void __user *)text_start;
-	current->mm->context.vdso_image = image;
+	mm->context.vdso = text_start;
+	mm->context.vdso_image = image;
 
 	/*
 	 * MAYWRITE to allow gdb to COW and set breakpoints
@@ -209,14 +211,12 @@ static int map_vdso(const struct vdso_image *image, bool calculate_addr)
 				       VM_PFNMAP,
 				       &vvar_mapping);
 
-	if (IS_ERR(vma)) {
+	if (IS_ERR(vma))
 		ret = PTR_ERR(vma);
-		goto up_fail;
-	}
 
 up_fail:
 	if (ret)
-		current->mm->context.vdso = NULL;
+		mm->context.vdso = 0;
 
 	up_write(&mm->mmap_sem);
 	return ret;
@@ -235,9 +235,6 @@ static int load_vdso32(void)
 #ifdef CONFIG_X86_64
 int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 {
-	if (!vdso64_enabled)
-		return 0;
-
 	return map_vdso(&vdso_image_64, true);
 }
 
@@ -246,12 +243,8 @@ int compat_arch_setup_additional_pages(struct linux_binprm *bprm,
 				       int uses_interp)
 {
 #ifdef CONFIG_X86_X32_ABI
-	if (test_thread_flag(TIF_X32)) {
-		if (!vdso64_enabled)
-			return 0;
-
+	if (test_thread_flag(TIF_X32))
 		return map_vdso(&vdso_image_x32, true);
-	}
 #endif
 #ifdef CONFIG_IA32_EMULATION
 	return load_vdso32();
@@ -268,15 +261,6 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 #endif
 
 #ifdef CONFIG_X86_64
-static __init int vdso_setup(char *s)
-{
-	vdso64_enabled = simple_strtoul(s, NULL, 0);
-	return 0;
-}
-__setup("vdso=", vdso_setup);
-#endif
-
-#ifdef CONFIG_X86_64
 static void vgetcpu_cpu_init(void *arg)
 {
 	int cpu = smp_processor_id();
diff --git a/arch/x86/entry/vsyscall/vsyscall_64.c b/arch/x86/entry/vsyscall/vsyscall_64.c
index 174c2549..489a8e7 100644
--- a/arch/x86/entry/vsyscall/vsyscall_64.c
+++ b/arch/x86/entry/vsyscall/vsyscall_64.c
@@ -38,10 +38,8 @@
 #define CREATE_TRACE_POINTS
 #include "vsyscall_trace.h"
 
-static enum { EMULATE, NATIVE, NONE } vsyscall_mode =
-#if defined(CONFIG_LEGACY_VSYSCALL_NATIVE)
-	NATIVE;
-#elif defined(CONFIG_LEGACY_VSYSCALL_NONE)
+static enum { EMULATE, NONE } vsyscall_mode =
+#if defined(CONFIG_LEGACY_VSYSCALL_NONE)
 	NONE;
 #else
 	EMULATE;
@@ -52,8 +50,6 @@ static int __init vsyscall_setup(char *str)
 	if (str) {
 		if (!strcmp("emulate", str))
 			vsyscall_mode = EMULATE;
-		else if (!strcmp("native", str))
-			vsyscall_mode = NATIVE;
 		else if (!strcmp("none", str))
 			vsyscall_mode = NONE;
 		else
@@ -271,8 +267,7 @@ do_ret:
 	return true;
 
 sigsegv:
-	force_sig(SIGSEGV, current);
-	return true;
+	do_group_exit(SIGKILL);
 }
 
 /*
@@ -290,8 +285,8 @@ static const struct vm_operations_struct gate_vma_ops = {
 static struct vm_area_struct gate_vma = {
 	.vm_start	= VSYSCALL_ADDR,
 	.vm_end		= VSYSCALL_ADDR + PAGE_SIZE,
-	.vm_page_prot	= PAGE_READONLY_EXEC,
-	.vm_flags	= VM_READ | VM_EXEC,
+	.vm_page_prot	= PAGE_READONLY,
+	.vm_flags	= VM_READ,
 	.vm_ops		= &gate_vma_ops,
 };
 
@@ -332,10 +327,7 @@ void __init map_vsyscall(void)
 	unsigned long physaddr_vsyscall = __pa_symbol(&__vsyscall_page);
 
 	if (vsyscall_mode != NONE)
-		__set_fixmap(VSYSCALL_PAGE, physaddr_vsyscall,
-			     vsyscall_mode == NATIVE
-			     ? PAGE_KERNEL_VSYSCALL
-			     : PAGE_KERNEL_VVAR);
+		__set_fixmap(VSYSCALL_PAGE, physaddr_vsyscall, PAGE_KERNEL_VVAR);
 
 	BUILD_BUG_ON((unsigned long)__fix_to_virt(VSYSCALL_PAGE) !=
 		     (unsigned long)VSYSCALL_ADDR);
diff --git a/arch/x86/entry/vsyscall/vsyscall_emu_64.S b/arch/x86/entry/vsyscall/vsyscall_emu_64.S
index c9596a9..805b68d 100644
--- a/arch/x86/entry/vsyscall/vsyscall_emu_64.S
+++ b/arch/x86/entry/vsyscall/vsyscall_emu_64.S
@@ -12,7 +12,7 @@
 #include <asm/page_types.h>
 #include <asm/unistd_64.h>
 
-__PAGE_ALIGNED_DATA
+.section ".data..read_only", "a"
 	.globl __vsyscall_page
 	.balign PAGE_SIZE, 0xcc
 	.type __vsyscall_page, @object
diff --git a/arch/x86/events/amd/iommu.c b/arch/x86/events/amd/iommu.c
index 6011a57..311bea0 100644
--- a/arch/x86/events/amd/iommu.c
+++ b/arch/x86/events/amd/iommu.c
@@ -80,12 +80,12 @@ static struct attribute_group amd_iommu_format_group = {
  * sysfs events attributes
  *---------------------------------------------*/
 struct amd_iommu_event_desc {
-	struct kobj_attribute attr;
+	struct device_attribute attr;
 	const char *event;
 };
 
-static ssize_t _iommu_event_show(struct kobject *kobj,
-				struct kobj_attribute *attr, char *buf)
+static ssize_t _iommu_event_show(struct device *dev,
+				struct device_attribute *attr, char *buf)
 {
 	struct amd_iommu_event_desc *event =
 		container_of(attr, struct amd_iommu_event_desc, attr);
@@ -407,7 +407,7 @@ static void perf_iommu_del(struct perf_event *event, int flags)
 static __init int _init_events_attrs(struct perf_amd_iommu *perf_iommu)
 {
 	struct attribute **attrs;
-	struct attribute_group *attr_group;
+	attribute_group_no_const *attr_group;
 	int i = 0, j;
 
 	while (amd_iommu_v2_event_descs[i].attr.attr.name)
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index 041e442..3ed82386 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -1535,7 +1535,7 @@ static void __init pmu_check_apic(void)
 
 }
 
-static struct attribute_group x86_pmu_format_group = {
+static attribute_group_no_const x86_pmu_format_group = {
 	.name = "format",
 	.attrs = NULL,
 };
@@ -1643,7 +1643,7 @@ static struct attribute *events_attr[] = {
 	NULL,
 };
 
-static struct attribute_group x86_pmu_events_group = {
+static attribute_group_no_const x86_pmu_events_group = {
 	.name = "events",
 	.attrs = events_attr,
 };
@@ -2251,7 +2251,7 @@ static unsigned long get_segment_base(unsigned int segment)
 		if (idx > GDT_ENTRIES)
 			return 0;
 
-		desc = raw_cpu_ptr(gdt_page.gdt) + idx;
+		desc = get_cpu_gdt_table(smp_processor_id()) + idx;
 	}
 
 	return get_desc_base(desc);
@@ -2356,7 +2356,7 @@ perf_callchain_user(struct perf_callchain_entry *entry, struct pt_regs *regs)
 			break;
 
 		perf_callchain_store(entry, frame.return_address);
-		fp = (void __user *)frame.next_frame;
+		fp = (void __force_user *)frame.next_frame;
 	}
 	pagefault_enable();
 }
diff --git a/arch/x86/events/intel/bts.c b/arch/x86/events/intel/bts.c
index b99dc92..407392a 100644
--- a/arch/x86/events/intel/bts.c
+++ b/arch/x86/events/intel/bts.c
@@ -250,7 +250,7 @@ static void bts_event_start(struct perf_event *event, int flags)
 	__bts_event_start(event);
 
 	/* PMI handler: this counter is running and likely generating PMIs */
-	ACCESS_ONCE(bts->started) = 1;
+	ACCESS_ONCE_RW(bts->started) = 1;
 }
 
 static void __bts_event_stop(struct perf_event *event)
@@ -264,7 +264,7 @@ static void __bts_event_stop(struct perf_event *event)
 	if (event->hw.state & PERF_HES_STOPPED)
 		return;
 
-	ACCESS_ONCE(event->hw.state) |= PERF_HES_STOPPED;
+	ACCESS_ONCE_RW(event->hw.state) |= PERF_HES_STOPPED;
 }
 
 static void bts_event_stop(struct perf_event *event, int flags)
@@ -272,7 +272,7 @@ static void bts_event_stop(struct perf_event *event, int flags)
 	struct bts_ctx *bts = this_cpu_ptr(&bts_ctx);
 
 	/* PMI handler: don't restart this counter */
-	ACCESS_ONCE(bts->started) = 0;
+	ACCESS_ONCE_RW(bts->started) = 0;
 
 	__bts_event_stop(event);
 
diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index 5210eaa..b6846dc 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -2185,6 +2185,8 @@ __intel_get_event_constraints(struct cpu_hw_events *cpuc, int idx,
 }
 
 static void
+intel_start_scheduling(struct cpu_hw_events *cpuc) __acquires(&cpuc->excl_cntrs->lock);
+static void
 intel_start_scheduling(struct cpu_hw_events *cpuc)
 {
 	struct intel_excl_cntrs *excl_cntrs = cpuc->excl_cntrs;
@@ -2194,14 +2196,18 @@ intel_start_scheduling(struct cpu_hw_events *cpuc)
 	/*
 	 * nothing needed if in group validation mode
 	 */
-	if (cpuc->is_fake || !is_ht_workaround_enabled())
+	if (cpuc->is_fake || !is_ht_workaround_enabled()) {
+		__acquire(&excl_cntrs->lock);
 		return;
+	}
 
 	/*
 	 * no exclusion needed
 	 */
-	if (WARN_ON_ONCE(!excl_cntrs))
+	if (WARN_ON_ONCE(!excl_cntrs)) {
+		__acquire(&excl_cntrs->lock);
 		return;
+	}
 
 	xl = &excl_cntrs->states[tid];
 
@@ -2241,6 +2247,8 @@ static void intel_commit_scheduling(struct cpu_hw_events *cpuc, int idx, int cnt
 }
 
 static void
+intel_stop_scheduling(struct cpu_hw_events *cpuc) __releases(&cpuc->excl_cntrs->lock);
+static void
 intel_stop_scheduling(struct cpu_hw_events *cpuc)
 {
 	struct intel_excl_cntrs *excl_cntrs = cpuc->excl_cntrs;
@@ -2250,13 +2258,18 @@ intel_stop_scheduling(struct cpu_hw_events *cpuc)
 	/*
 	 * nothing needed if in group validation mode
 	 */
-	if (cpuc->is_fake || !is_ht_workaround_enabled())
+	if (cpuc->is_fake || !is_ht_workaround_enabled()) {
+		__release(&excl_cntrs->lock);
 		return;
+	}
+
 	/*
 	 * no exclusion needed
 	 */
-	if (WARN_ON_ONCE(!excl_cntrs))
+	if (WARN_ON_ONCE(!excl_cntrs)) {
+		__release(&excl_cntrs->lock);
 		return;
+	}
 
 	xl = &excl_cntrs->states[tid];
 
@@ -2439,19 +2452,22 @@ static void intel_put_excl_constraints(struct cpu_hw_events *cpuc,
 	 * unused now.
 	 */
 	if (hwc->idx >= 0) {
+		bool sched_started;
+
 		xl = &excl_cntrs->states[tid];
+		sched_started = xl->sched_started;
 
 		/*
 		 * put_constraint may be called from x86_schedule_events()
 		 * which already has the lock held so here make locking
 		 * conditional.
 		 */
-		if (!xl->sched_started)
+		if (!sched_started)
 			raw_spin_lock(&excl_cntrs->lock);
 
 		xl->state[hwc->idx] = INTEL_EXCL_UNUSED;
 
-		if (!xl->sched_started)
+		if (!sched_started)
 			raw_spin_unlock(&excl_cntrs->lock);
 	}
 }
@@ -3360,10 +3376,10 @@ __init int intel_pmu_init(void)
 		x86_pmu.num_counters_fixed = max((int)edx.split.num_counters_fixed, 3);
 
 	if (boot_cpu_has(X86_FEATURE_PDCM)) {
-		u64 capabilities;
+		u64 capabilities = x86_pmu.intel_cap.capabilities;
 
-		rdmsrl(MSR_IA32_PERF_CAPABILITIES, capabilities);
-		x86_pmu.intel_cap.capabilities = capabilities;
+		if (rdmsrl_safe(MSR_IA32_PERF_CAPABILITIES, &x86_pmu.intel_cap.capabilities))
+			x86_pmu.intel_cap.capabilities = capabilities;
 	}
 
 	intel_ds_init();
diff --git a/arch/x86/events/intel/cqm.c b/arch/x86/events/intel/cqm.c
index 7b5fd81..3ca58b5 100644
--- a/arch/x86/events/intel/cqm.c
+++ b/arch/x86/events/intel/cqm.c
@@ -1479,7 +1479,7 @@ static struct attribute *intel_cmt_mbm_events_attr[] = {
 	NULL,
 };
 
-static struct attribute_group intel_cqm_events_group = {
+static attribute_group_no_const intel_cqm_events_group __read_only = {
 	.name = "events",
 	.attrs = NULL,
 };
@@ -1737,7 +1737,9 @@ static int __init intel_cqm_init(void)
 		goto out;
 	}
 
-	event_attr_intel_cqm_llc_scale.event_str = str;
+	pax_open_kernel();
+	const_cast(event_attr_intel_cqm_llc_scale.event_str) = str;
+	pax_close_kernel();
 
 	ret = intel_cqm_setup_rmid_cache();
 	if (ret)
@@ -1753,12 +1755,14 @@ static int __init intel_cqm_init(void)
 	if (ret && !cqm_enabled)
 		goto out;
 
+	pax_open_kernel();
 	if (cqm_enabled && mbm_enabled)
-		intel_cqm_events_group.attrs = intel_cmt_mbm_events_attr;
+		const_cast(intel_cqm_events_group.attrs) = intel_cmt_mbm_events_attr;
 	else if (!cqm_enabled && mbm_enabled)
-		intel_cqm_events_group.attrs = intel_mbm_events_attr;
+		const_cast(intel_cqm_events_group.attrs) = intel_mbm_events_attr;
 	else if (cqm_enabled && !mbm_enabled)
-		intel_cqm_events_group.attrs = intel_cqm_events_attr;
+		const_cast(intel_cqm_events_group.attrs) = intel_cqm_events_attr;
+	pax_close_kernel();
 
 	ret = perf_pmu_register(&intel_cqm_pmu, "intel_cqm", -1);
 	if (ret) {
diff --git a/arch/x86/events/intel/cstate.c b/arch/x86/events/intel/cstate.c
index 7946c42..75c730b 100644
--- a/arch/x86/events/intel/cstate.c
+++ b/arch/x86/events/intel/cstate.c
@@ -92,14 +92,14 @@
 #include "../perf_event.h"
 
 #define DEFINE_CSTATE_FORMAT_ATTR(_var, _name, _format)		\
-static ssize_t __cstate_##_var##_show(struct kobject *kobj,	\
-				struct kobj_attribute *attr,	\
+static ssize_t __cstate_##_var##_show(struct device *dev,	\
+				struct device_attribute *attr,	\
 				char *page)			\
 {								\
 	BUILD_BUG_ON(sizeof(_format) >= PAGE_SIZE);		\
 	return sprintf(page, _format "\n");			\
 }								\
-static struct kobj_attribute format_attr_##_var =		\
+static struct device_attribute format_attr_##_var =		\
 	__ATTR(_name, 0444, __cstate_##_var##_show, NULL)
 
 static ssize_t cstate_get_attr_cpumask(struct device *dev,
diff --git a/arch/x86/events/intel/ds.c b/arch/x86/events/intel/ds.c
index 8584b90..82c274a 100644
--- a/arch/x86/events/intel/ds.c
+++ b/arch/x86/events/intel/ds.c
@@ -601,7 +601,7 @@ unlock:
 
 static inline void intel_pmu_drain_pebs_buffer(void)
 {
-	struct pt_regs regs;
+	struct pt_regs regs = {};
 
 	x86_pmu.drain_pebs(&regs);
 }
@@ -903,7 +903,7 @@ static int intel_pmu_pebs_fixup_ip(struct pt_regs *regs)
 	struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
 	unsigned long from = cpuc->lbr_entries[0].from;
 	unsigned long old_to, to = cpuc->lbr_entries[0].to;
-	unsigned long ip = regs->ip;
+	unsigned long ip = ktva_ktla(regs->ip);
 	int is_64bit = 0;
 	void *kaddr;
 	int size;
@@ -955,6 +955,7 @@ static int intel_pmu_pebs_fixup_ip(struct pt_regs *regs)
 	} else {
 		kaddr = (void *)to;
 	}
+	kaddr = (void *)ktva_ktla((unsigned long)kaddr);
 
 	do {
 		struct insn insn;
@@ -1103,7 +1104,7 @@ static void setup_pebs_sample_data(struct perf_event *event,
 	}
 
 	if (event->attr.precise_ip > 1 && x86_pmu.intel_cap.pebs_format >= 2) {
-		regs->ip = pebs->real_ip;
+		set_linear_ip(regs, pebs->real_ip);
 		regs->flags |= PERF_EFLAGS_EXACT;
 	} else if (event->attr.precise_ip > 1 && intel_pmu_pebs_fixup_ip(regs))
 		regs->flags |= PERF_EFLAGS_EXACT;
diff --git a/arch/x86/events/intel/lbr.c b/arch/x86/events/intel/lbr.c
index 1ca5d1e..3835cc0 100644
--- a/arch/x86/events/intel/lbr.c
+++ b/arch/x86/events/intel/lbr.c
@@ -706,7 +706,7 @@ static int branch_type(unsigned long from, unsigned long to, int abort)
 		 * Ensure we don't blindy read any address by validating it is
 		 * a known text address.
 		 */
-		if (kernel_text_address(from)) {
+		if (kernel_text_address(ktva_ktla(from))) {
 			addr = (void *)from;
 			/*
 			 * Assume we can get the maximum possible size
@@ -728,7 +728,7 @@ static int branch_type(unsigned long from, unsigned long to, int abort)
 #ifdef CONFIG_X86_64
 	is64 = kernel_ip((unsigned long)addr) || !test_thread_flag(TIF_IA32);
 #endif
-	insn_init(&insn, addr, bytes_read, is64);
+	insn_init(&insn, (void *)ktva_ktla((unsigned long)addr), bytes_read, is64);
 	insn_get_opcode(&insn);
 	if (!insn.opcode.got)
 		return X86_BR_ABORT;
diff --git a/arch/x86/events/intel/pt.c b/arch/x86/events/intel/pt.c
index 7377814..a128ad7 100644
--- a/arch/x86/events/intel/pt.c
+++ b/arch/x86/events/intel/pt.c
@@ -133,14 +133,12 @@ static const struct attribute_group *pt_attr_groups[] = {
 
 static int __init pt_pmu_hw_init(void)
 {
-	struct dev_ext_attribute *de_attrs;
-	struct attribute **attrs;
-	size_t size;
-	u64 reg;
-	int ret;
+	static struct dev_ext_attribute de_attrs[ARRAY_SIZE(pt_caps)];
+	static struct attribute *attrs[ARRAY_SIZE(pt_caps)];
 	long i;
 
 	if (boot_cpu_has(X86_FEATURE_VMX)) {
+		u64 reg;
 		/*
 		 * Intel SDM, 36.5 "Tracing post-VMXON" says that
 		 * "IA32_VMX_MISC[bit 14]" being 1 means PT can trace
@@ -151,8 +149,6 @@ static int __init pt_pmu_hw_init(void)
 			pt_pmu.vmx = true;
 	}
 
-	attrs = NULL;
-
 	for (i = 0; i < PT_CPUID_LEAVES; i++) {
 		cpuid_count(20, i,
 			    &pt_pmu.caps[CR_EAX + i*PT_CPUID_REGS_NUM],
@@ -161,39 +157,25 @@ static int __init pt_pmu_hw_init(void)
 			    &pt_pmu.caps[CR_EDX + i*PT_CPUID_REGS_NUM]);
 	}
 
-	ret = -ENOMEM;
-	size = sizeof(struct attribute *) * (ARRAY_SIZE(pt_caps)+1);
-	attrs = kzalloc(size, GFP_KERNEL);
-	if (!attrs)
-		goto fail;
-
-	size = sizeof(struct dev_ext_attribute) * (ARRAY_SIZE(pt_caps)+1);
-	de_attrs = kzalloc(size, GFP_KERNEL);
-	if (!de_attrs)
-		goto fail;
-
+	pax_open_kernel();
 	for (i = 0; i < ARRAY_SIZE(pt_caps); i++) {
-		struct dev_ext_attribute *de_attr = de_attrs + i;
+		struct dev_ext_attribute *de_attr = &de_attrs[i];
 
-		de_attr->attr.attr.name = pt_caps[i].name;
+		const_cast(de_attr->attr.attr.name) = pt_caps[i].name;
 
 		sysfs_attr_init(&de_attr->attr.attr);
 
-		de_attr->attr.attr.mode		= S_IRUGO;
-		de_attr->attr.show		= pt_cap_show;
-		de_attr->var			= (void *)i;
+		const_cast(de_attr->attr.attr.mode)	= S_IRUGO;
+		const_cast(de_attr->attr.show)		= pt_cap_show;
+		const_cast(de_attr->var)		= (void *)i;
 
 		attrs[i] = &de_attr->attr.attr;
 	}
 
-	pt_cap_group.attrs = attrs;
+	const_cast(pt_cap_group.attrs) = attrs;
+	pax_close_kernel();
 
 	return 0;
-
-fail:
-	kfree(attrs);
-
-	return ret;
 }
 
 #define RTIT_CTL_CYC_PSB (RTIT_CTL_CYCLEACC	| \
@@ -1051,7 +1033,7 @@ static void pt_event_start(struct perf_event *event, int mode)
 		return;
 	}
 
-	ACCESS_ONCE(pt->handle_nmi) = 1;
+	ACCESS_ONCE_RW(pt->handle_nmi) = 1;
 	event->hw.state = 0;
 
 	pt_config_buffer(buf->cur->table, buf->cur_idx,
@@ -1067,7 +1049,7 @@ static void pt_event_stop(struct perf_event *event, int mode)
 	 * Protect against the PMI racing with disabling wrmsr,
 	 * see comment in intel_pt_interrupt().
 	 */
-	ACCESS_ONCE(pt->handle_nmi) = 0;
+	ACCESS_ONCE_RW(pt->handle_nmi) = 0;
 
 	pt_config_stop(event);
 
diff --git a/arch/x86/events/intel/rapl.c b/arch/x86/events/intel/rapl.c
index 1705c9d..4204f6f 100644
--- a/arch/x86/events/intel/rapl.c
+++ b/arch/x86/events/intel/rapl.c
@@ -100,14 +100,14 @@ static const char *const rapl_domain_names[NR_RAPL_DOMAINS] __initconst = {
 #define RAPL_EVENT_MASK	0xFFULL
 
 #define DEFINE_RAPL_FORMAT_ATTR(_var, _name, _format)		\
-static ssize_t __rapl_##_var##_show(struct kobject *kobj,	\
-				struct kobj_attribute *attr,	\
+static ssize_t __rapl_##_var##_show(struct device *dev,		\
+				struct device_attribute *attr,	\
 				char *page)			\
 {								\
 	BUILD_BUG_ON(sizeof(_format) >= PAGE_SIZE);		\
 	return sprintf(page, _format "\n");			\
 }								\
-static struct kobj_attribute format_attr_##_var =		\
+static struct device_attribute format_attr_##_var =		\
 	__ATTR(_name, 0444, __rapl_##_var##_show, NULL)
 
 #define RAPL_CNTR_WIDTH 32
@@ -488,7 +488,7 @@ static struct attribute *rapl_events_knl_attr[] = {
 	NULL,
 };
 
-static struct attribute_group rapl_pmu_events_group = {
+static attribute_group_no_const rapl_pmu_events_group __read_only = {
 	.name = "events",
 	.attrs = NULL, /* patched at runtime */
 };
diff --git a/arch/x86/events/intel/uncore.c b/arch/x86/events/intel/uncore.c
index f921a1e..8f8920f 100644
--- a/arch/x86/events/intel/uncore.c
+++ b/arch/x86/events/intel/uncore.c
@@ -84,8 +84,8 @@ end:
 	return map;
 }
 
-ssize_t uncore_event_show(struct kobject *kobj,
-			  struct kobj_attribute *attr, char *buf)
+ssize_t uncore_event_show(struct device *dev,
+			  struct device_attribute *attr, char *buf)
 {
 	struct uncore_event_desc *event =
 		container_of(attr, struct uncore_event_desc, attr);
@@ -813,7 +813,7 @@ static void __init uncore_types_exit(struct intel_uncore_type **types)
 static int __init uncore_type_init(struct intel_uncore_type *type, bool setid)
 {
 	struct intel_uncore_pmu *pmus;
-	struct attribute_group *attr_group;
+	attribute_group_no_const *attr_group;
 	struct attribute **attrs;
 	size_t size;
 	int i, j;
diff --git a/arch/x86/events/intel/uncore.h b/arch/x86/events/intel/uncore.h
index 79766b9..8e2b3d0 100644
--- a/arch/x86/events/intel/uncore.h
+++ b/arch/x86/events/intel/uncore.h
@@ -119,9 +119,9 @@ struct intel_uncore_box {
 #define UNCORE_BOX_FLAG_INITIATED	0
 
 struct uncore_event_desc {
-	struct kobj_attribute attr;
+	struct device_attribute attr;
 	const char *config;
-};
+} __do_const;
 
 struct pci2phy_map {
 	struct list_head list;
@@ -131,8 +131,8 @@ struct pci2phy_map {
 
 struct pci2phy_map *__find_pci2phy_map(int segment);
 
-ssize_t uncore_event_show(struct kobject *kobj,
-			  struct kobj_attribute *attr, char *buf);
+ssize_t uncore_event_show(struct device *dev,
+			  struct device_attribute *attr, char *buf);
 
 #define INTEL_UNCORE_EVENT_DESC(_name, _config)			\
 {								\
@@ -141,14 +141,14 @@ ssize_t uncore_event_show(struct kobject *kobj,
 }
 
 #define DEFINE_UNCORE_FORMAT_ATTR(_var, _name, _format)			\
-static ssize_t __uncore_##_var##_show(struct kobject *kobj,		\
-				struct kobj_attribute *attr,		\
+static ssize_t __uncore_##_var##_show(struct device *dev,		\
+				struct device_attribute *attr,		\
 				char *page)				\
 {									\
 	BUILD_BUG_ON(sizeof(_format) >= PAGE_SIZE);			\
 	return sprintf(page, _format "\n");				\
 }									\
-static struct kobj_attribute format_attr_##_var =			\
+static struct device_attribute format_attr_##_var =			\
 	__ATTR(_name, 0444, __uncore_##_var##_show, NULL)
 
 static inline unsigned uncore_pci_box_ctl(struct intel_uncore_box *box)
diff --git a/arch/x86/events/perf_event.h b/arch/x86/events/perf_event.h
index ad4dc7f..1eff595 100644
--- a/arch/x86/events/perf_event.h
+++ b/arch/x86/events/perf_event.h
@@ -792,7 +792,7 @@ static inline void set_linear_ip(struct pt_regs *regs, unsigned long ip)
 	regs->cs = kernel_ip(ip) ? __KERNEL_CS : __USER_CS;
 	if (regs->flags & X86_VM_MASK)
 		regs->flags ^= (PERF_EFLAGS_VM | X86_VM_MASK);
-	regs->ip = ip;
+	regs->ip = kernel_ip(ip) ? ktva_ktla(ip) : ip;
 }
 
 ssize_t x86_event_sysfs_show(char *page, u64 config, u64 event);
diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
index ae6aad1..719d6d9 100644
--- a/arch/x86/ia32/ia32_aout.c
+++ b/arch/x86/ia32/ia32_aout.c
@@ -153,6 +153,8 @@ static int aout_core_dump(struct coredump_params *cprm)
 	unsigned long dump_start, dump_size;
 	struct user32 dump;
 
+	memset(&dump, 0, sizeof(dump));
+
 	fs = get_fs();
 	set_fs(KERNEL_DS);
 	has_dumped = 1;
diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index 0552884..4e736e4 100644
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -123,7 +123,7 @@ asmlinkage long sys32_sigreturn(void)
 	if (__get_user(set.sig[0], &frame->sc.oldmask)
 	    || (_COMPAT_NSIG_WORDS > 1
 		&& __copy_from_user((((char *) &set.sig) + 4),
-				    &frame->extramask,
+				    frame->extramask,
 				    sizeof(frame->extramask))))
 		goto badframe;
 
@@ -243,7 +243,7 @@ static void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs,
 	sp -= frame_size;
 	/* Align the stack pointer according to the i386 ABI,
 	 * i.e. so that on function entry ((sp + 4) & 15) == 0. */
-	sp = ((sp + 4) & -16ul) - 4;
+	sp = ((sp - 12) & -16ul) - 4;
 	return (void __user *) sp;
 }
 
@@ -288,10 +288,10 @@ int ia32_setup_frame(int sig, struct ksignal *ksig,
 	} else {
 		/* Return stub is in 32bit vsyscall page */
 		if (current->mm->context.vdso)
-			restorer = current->mm->context.vdso +
-				vdso_image_32.sym___kernel_sigreturn;
+			restorer = (void __force_user *)(current->mm->context.vdso +
+				vdso_image_32.sym___kernel_sigreturn);
 		else
-			restorer = &frame->retcode;
+			restorer = frame->retcode;
 	}
 
 	put_user_try {
@@ -301,7 +301,7 @@ int ia32_setup_frame(int sig, struct ksignal *ksig,
 		 * These are actually not used anymore, but left because some
 		 * gdb versions depend on them as a marker.
 		 */
-		put_user_ex(*((u64 *)&code), (u64 __user *)frame->retcode);
+		put_user_ex(*((const u64 *)&code), (u64 __user *)frame->retcode);
 	} put_user_catch(err);
 
 	if (err)
@@ -343,7 +343,7 @@ int ia32_setup_rt_frame(int sig, struct ksignal *ksig,
 		0xb8,
 		__NR_ia32_rt_sigreturn,
 		0x80cd,
-		0,
+		0
 	};
 
 	frame = get_sigframe(ksig, regs, sizeof(*frame), &fpstate);
@@ -366,16 +366,19 @@ int ia32_setup_rt_frame(int sig, struct ksignal *ksig,
 
 		if (ksig->ka.sa.sa_flags & SA_RESTORER)
 			restorer = ksig->ka.sa.sa_restorer;
+		else if (current->mm->context.vdso)
+			/* Return stub is in 32bit vsyscall page */
+			restorer = (void __force_user *)(current->mm->context.vdso +
+				vdso_image_32.sym___kernel_rt_sigreturn);
 		else
-			restorer = current->mm->context.vdso +
-				vdso_image_32.sym___kernel_rt_sigreturn;
+			restorer = frame->retcode;
 		put_user_ex(ptr_to_compat(restorer), &frame->pretcode);
 
 		/*
 		 * Not actually used anymore, but left because some gdb
 		 * versions need it.
 		 */
-		put_user_ex(*((u64 *)&code), (u64 __user *)frame->retcode);
+		put_user_ex(*((const u64 *)&code), (u64 __user *)frame->retcode);
 	} put_user_catch(err);
 
 	err |= copy_siginfo_to_user32(&frame->info, &ksig->info);
diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c
index 719cd70..72af944 100644
--- a/arch/x86/ia32/sys_ia32.c
+++ b/arch/x86/ia32/sys_ia32.c
@@ -49,18 +49,26 @@
 
 #define AA(__x)		((unsigned long)(__x))
 
+static inline loff_t compose_loff(unsigned int high, unsigned int low)
+{
+	loff_t retval = low;
+
+	BUILD_BUG_ON(sizeof retval != sizeof low + sizeof high);
+	__builtin_memcpy((unsigned char *)&retval + sizeof low, &high, sizeof high);
+	return retval;
+}
 
 asmlinkage long sys32_truncate64(const char __user *filename,
-				 unsigned long offset_low,
-				 unsigned long offset_high)
+				 unsigned int offset_low,
+				 unsigned int offset_high)
 {
-       return sys_truncate(filename, ((loff_t) offset_high << 32) | offset_low);
+	return sys_truncate(filename, compose_loff(offset_high, offset_low));
 }
 
-asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long offset_low,
-				  unsigned long offset_high)
+asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned int offset_low,
+				  unsigned int offset_high)
 {
-       return sys_ftruncate(fd, ((loff_t) offset_high << 32) | offset_low);
+	return sys_ftruncate(fd, ((unsigned long) offset_high << 32) | offset_low);
 }
 
 /*
@@ -69,8 +77,8 @@ asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long offset_low,
  */
 static int cp_stat64(struct stat64 __user *ubuf, struct kstat *stat)
 {
-	typeof(ubuf->st_uid) uid = 0;
-	typeof(ubuf->st_gid) gid = 0;
+	typeof(((struct stat64 *)0)->st_uid) uid = 0;
+	typeof(((struct stat64 *)0)->st_gid) gid = 0;
 	SET_UID(uid, from_kuid_munged(current_user_ns(), stat->uid));
 	SET_GID(gid, from_kgid_munged(current_user_ns(), stat->gid));
 	if (!access_ok(VERIFY_WRITE, ubuf, sizeof(struct stat64)) ||
@@ -196,29 +204,29 @@ long sys32_fadvise64_64(int fd, __u32 offset_low, __u32 offset_high,
 			__u32 len_low, __u32 len_high, int advice)
 {
 	return sys_fadvise64_64(fd,
-			       (((u64)offset_high)<<32) | offset_low,
-			       (((u64)len_high)<<32) | len_low,
+			       compose_loff(offset_high, offset_low),
+			       compose_loff(len_high, len_low),
 				advice);
 }
 
 asmlinkage ssize_t sys32_readahead(int fd, unsigned off_lo, unsigned off_hi,
 				   size_t count)
 {
-	return sys_readahead(fd, ((u64)off_hi << 32) | off_lo, count);
+	return sys_readahead(fd, compose_loff(off_hi, off_lo), count);
 }
 
 asmlinkage long sys32_sync_file_range(int fd, unsigned off_low, unsigned off_hi,
 				      unsigned n_low, unsigned n_hi,  int flags)
 {
 	return sys_sync_file_range(fd,
-				   ((u64)off_hi << 32) | off_low,
-				   ((u64)n_hi << 32) | n_low, flags);
+				   compose_loff(off_hi, off_low),
+				   compose_loff(n_hi, n_low), flags);
 }
 
 asmlinkage long sys32_fadvise64(int fd, unsigned offset_lo, unsigned offset_hi,
-				size_t len, int advice)
+				int len, int advice)
 {
-	return sys_fadvise64_64(fd, ((u64)offset_hi << 32) | offset_lo,
+	return sys_fadvise64_64(fd, compose_loff(offset_hi, offset_lo),
 				len, advice);
 }
 
@@ -226,6 +234,6 @@ asmlinkage long sys32_fallocate(int fd, int mode, unsigned offset_lo,
 				unsigned offset_hi, unsigned len_lo,
 				unsigned len_hi)
 {
-	return sys_fallocate(fd, mode, ((u64)offset_hi << 32) | offset_lo,
-			     ((u64)len_hi << 32) | len_lo);
+	return sys_fallocate(fd, mode, compose_loff(offset_hi, offset_lo),
+			     compose_loff(len_hi, len_lo));
 }
diff --git a/arch/x86/include/asm/alternative-asm.h b/arch/x86/include/asm/alternative-asm.h
index e7636ba..e1fb78a 100644
--- a/arch/x86/include/asm/alternative-asm.h
+++ b/arch/x86/include/asm/alternative-asm.h
@@ -18,6 +18,45 @@
 	.endm
 #endif
 
+#ifdef KERNEXEC_PLUGIN
+	.macro pax_force_retaddr_bts rip=0
+	btsq $63,\rip(%rsp)
+	.endm
+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_BTS
+	.macro pax_force_retaddr rip=0, reload=0
+	btsq $63,\rip(%rsp)
+	.endm
+	.macro pax_force_fptr ptr
+	btsq $63,\ptr
+	.endm
+	.macro pax_set_fptr_mask
+	.endm
+#endif
+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
+	.macro pax_force_retaddr rip=0, reload=0
+	.if \reload
+	pax_set_fptr_mask
+	.endif
+	orq %r12,\rip(%rsp)
+	.endm
+	.macro pax_force_fptr ptr
+	orq %r12,\ptr
+	.endm
+	.macro pax_set_fptr_mask
+	movabs $0x8000000000000000,%r12
+	.endm
+#endif
+#else
+	.macro pax_force_retaddr rip=0, reload=0
+	.endm
+	.macro pax_force_fptr ptr
+	.endm
+	.macro pax_force_retaddr_bts rip=0
+	.endm
+	.macro pax_set_fptr_mask
+	.endm
+#endif
+
 /*
  * Issue one struct alt_instr descriptor entry (need to put it into
  * the section .altinstructions, see below). This entry contains
@@ -50,7 +89,7 @@
 	altinstruction_entry 140b,143f,\feature,142b-140b,144f-143f,142b-141b
 	.popsection
 
-	.pushsection .altinstr_replacement,"ax"
+	.pushsection .altinstr_replacement,"a"
 143:
 	\newinstr
 144:
@@ -86,7 +125,7 @@
 	altinstruction_entry 140b,144f,\feature2,142b-140b,145f-144f,142b-141b
 	.popsection
 
-	.pushsection .altinstr_replacement,"ax"
+	.pushsection .altinstr_replacement,"a"
 143:
 	\newinstr1
 144:
diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h
index 99afb66..c098094 100644
--- a/arch/x86/include/asm/alternative.h
+++ b/arch/x86/include/asm/alternative.h
@@ -136,7 +136,7 @@ static inline int alternatives_text_reserved(void *start, void *end)
 	".pushsection .altinstructions,\"a\"\n"				\
 	ALTINSTR_ENTRY(feature, 1)					\
 	".popsection\n"							\
-	".pushsection .altinstr_replacement, \"ax\"\n"			\
+	".pushsection .altinstr_replacement, \"a\"\n"			\
 	ALTINSTR_REPLACEMENT(newinstr, feature, 1)			\
 	".popsection"
 
@@ -146,7 +146,7 @@ static inline int alternatives_text_reserved(void *start, void *end)
 	ALTINSTR_ENTRY(feature1, 1)					\
 	ALTINSTR_ENTRY(feature2, 2)					\
 	".popsection\n"							\
-	".pushsection .altinstr_replacement, \"ax\"\n"			\
+	".pushsection .altinstr_replacement, \"a\"\n"			\
 	ALTINSTR_REPLACEMENT(newinstr1, feature1, 1)			\
 	ALTINSTR_REPLACEMENT(newinstr2, feature2, 2)			\
 	".popsection"
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index 98f25bb..230bd9e 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -49,7 +49,7 @@ static inline void generic_apic_probe(void)
 
 #ifdef CONFIG_X86_LOCAL_APIC
 
-extern unsigned int apic_verbosity;
+extern int apic_verbosity;
 extern int local_apic_timer_c2_ok;
 
 extern int disable_apic;
diff --git a/arch/x86/include/asm/apm.h b/arch/x86/include/asm/apm.h
index 20370c6..a2eb9b0 100644
--- a/arch/x86/include/asm/apm.h
+++ b/arch/x86/include/asm/apm.h
@@ -34,7 +34,7 @@ static inline void apm_bios_call_asm(u32 func, u32 ebx_in, u32 ecx_in,
 	__asm__ __volatile__(APM_DO_ZERO_SEGS
 		"pushl %%edi\n\t"
 		"pushl %%ebp\n\t"
-		"lcall *%%cs:apm_bios_entry\n\t"
+		"lcall *%%ss:apm_bios_entry\n\t"
 		"setc %%al\n\t"
 		"popl %%ebp\n\t"
 		"popl %%edi\n\t"
@@ -58,7 +58,7 @@ static inline u8 apm_bios_call_simple_asm(u32 func, u32 ebx_in,
 	__asm__ __volatile__(APM_DO_ZERO_SEGS
 		"pushl %%edi\n\t"
 		"pushl %%ebp\n\t"
-		"lcall *%%cs:apm_bios_entry\n\t"
+		"lcall *%%ss:apm_bios_entry\n\t"
 		"setc %%bl\n\t"
 		"popl %%ebp\n\t"
 		"popl %%edi\n\t"
diff --git a/arch/x86/include/asm/atomic.h b/arch/x86/include/asm/atomic.h
index 3e86742..1b19554 100644
--- a/arch/x86/include/asm/atomic.h
+++ b/arch/x86/include/asm/atomic.h
@@ -27,6 +27,17 @@ static __always_inline int atomic_read(const atomic_t *v)
 }
 
 /**
+ * atomic_read_unchecked - read atomic variable
+ * @v: pointer of type atomic_unchecked_t
+ *
+ * Atomically reads the value of @v.
+ */
+static __always_inline int __intentional_overflow(-1) atomic_read_unchecked(const atomic_unchecked_t *v)
+{
+	return ACCESS_ONCE((v)->counter);
+}
+
+/**
  * atomic_set - set atomic variable
  * @v: pointer of type atomic_t
  * @i: required value
@@ -39,6 +50,18 @@ static __always_inline void atomic_set(atomic_t *v, int i)
 }
 
 /**
+ * atomic_set_unchecked - set atomic variable
+ * @v: pointer of type atomic_unchecked_t
+ * @i: required value
+ *
+ * Atomically sets the value of @v to @i.
+ */
+static __always_inline void atomic_set_unchecked(atomic_unchecked_t *v, int i)
+{
+	v->counter = i;
+}
+
+/**
  * atomic_add - add integer to atomic variable
  * @i: integer value to add
  * @v: pointer of type atomic_t
@@ -47,7 +70,29 @@ static __always_inline void atomic_set(atomic_t *v, int i)
  */
 static __always_inline void atomic_add(int i, atomic_t *v)
 {
-	asm volatile(LOCK_PREFIX "addl %1,%0"
+	asm volatile(LOCK_PREFIX "addl %1,%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX "subl %1,%0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     : "+m" (v->counter)
+		     : "ir" (i));
+}
+
+/**
+ * atomic_add_unchecked - add integer to atomic variable
+ * @i: integer value to add
+ * @v: pointer of type atomic_unchecked_t
+ *
+ * Atomically adds @i to @v.
+ */
+static __always_inline void atomic_add_unchecked(int i, atomic_unchecked_t *v)
+{
+	asm volatile(LOCK_PREFIX "addl %1,%0\n"
 		     : "+m" (v->counter)
 		     : "ir" (i));
 }
@@ -61,7 +106,29 @@ static __always_inline void atomic_add(int i, atomic_t *v)
  */
 static __always_inline void atomic_sub(int i, atomic_t *v)
 {
-	asm volatile(LOCK_PREFIX "subl %1,%0"
+	asm volatile(LOCK_PREFIX "subl %1,%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX "addl %1,%0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     : "+m" (v->counter)
+		     : "ir" (i));
+}
+
+/**
+ * atomic_sub_unchecked - subtract integer from atomic variable
+ * @i: integer value to subtract
+ * @v: pointer of type atomic_unchecked_t
+ *
+ * Atomically subtracts @i from @v.
+ */
+static __always_inline void atomic_sub_unchecked(int i, atomic_unchecked_t *v)
+{
+	asm volatile(LOCK_PREFIX "subl %1,%0\n"
 		     : "+m" (v->counter)
 		     : "ir" (i));
 }
@@ -77,7 +144,7 @@ static __always_inline void atomic_sub(int i, atomic_t *v)
  */
 static __always_inline int atomic_sub_and_test(int i, atomic_t *v)
 {
-	GEN_BINARY_RMWcc(LOCK_PREFIX "subl", v->counter, "er", i, "%0", "e");
+	GEN_BINARY_RMWcc(LOCK_PREFIX "subl", LOCK_PREFIX "addl",  v->counter, "er", i, "%0", "e");
 }
 
 /**
@@ -88,7 +155,27 @@ static __always_inline int atomic_sub_and_test(int i, atomic_t *v)
  */
 static __always_inline void atomic_inc(atomic_t *v)
 {
-	asm volatile(LOCK_PREFIX "incl %0"
+	asm volatile(LOCK_PREFIX "incl %0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX "decl %0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     : "+m" (v->counter));
+}
+
+/**
+ * atomic_inc_unchecked - increment atomic variable
+ * @v: pointer of type atomic_unchecked_t
+ *
+ * Atomically increments @v by 1.
+ */
+static __always_inline void atomic_inc_unchecked(atomic_unchecked_t *v)
+{
+	asm volatile(LOCK_PREFIX "incl %0\n"
 		     : "+m" (v->counter));
 }
 
@@ -100,7 +187,27 @@ static __always_inline void atomic_inc(atomic_t *v)
  */
 static __always_inline void atomic_dec(atomic_t *v)
 {
-	asm volatile(LOCK_PREFIX "decl %0"
+	asm volatile(LOCK_PREFIX "decl %0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX "incl %0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     : "+m" (v->counter));
+}
+
+/**
+ * atomic_dec_unchecked - decrement atomic variable
+ * @v: pointer of type atomic_unchecked_t
+ *
+ * Atomically decrements @v by 1.
+ */
+static __always_inline void atomic_dec_unchecked(atomic_unchecked_t *v)
+{
+	asm volatile(LOCK_PREFIX "decl %0\n"
 		     : "+m" (v->counter));
 }
 
@@ -114,7 +221,7 @@ static __always_inline void atomic_dec(atomic_t *v)
  */
 static __always_inline int atomic_dec_and_test(atomic_t *v)
 {
-	GEN_UNARY_RMWcc(LOCK_PREFIX "decl", v->counter, "%0", "e");
+	GEN_UNARY_RMWcc(LOCK_PREFIX "decl", LOCK_PREFIX "incl", v->counter, "%0", "e");
 }
 
 /**
@@ -127,7 +234,20 @@ static __always_inline int atomic_dec_and_test(atomic_t *v)
  */
 static __always_inline int atomic_inc_and_test(atomic_t *v)
 {
-	GEN_UNARY_RMWcc(LOCK_PREFIX "incl", v->counter, "%0", "e");
+	GEN_UNARY_RMWcc(LOCK_PREFIX "incl", LOCK_PREFIX "decl", v->counter, "%0", "e");
+}
+
+/**
+ * atomic_inc_and_test_unchecked - increment and test
+ * @v: pointer of type atomic_unchecked_t
+ *
+ * Atomically increments @v by 1
+ * and returns true if the result is zero, or false for all
+ * other cases.
+ */
+static __always_inline int atomic_inc_and_test_unchecked(atomic_unchecked_t *v)
+{
+	GEN_UNARY_RMWcc_unchecked(LOCK_PREFIX "incl", v->counter, "%0", "e");
 }
 
 /**
@@ -141,7 +261,7 @@ static __always_inline int atomic_inc_and_test(atomic_t *v)
  */
 static __always_inline int atomic_add_negative(int i, atomic_t *v)
 {
-	GEN_BINARY_RMWcc(LOCK_PREFIX "addl", v->counter, "er", i, "%0", "s");
+	GEN_BINARY_RMWcc(LOCK_PREFIX "addl", LOCK_PREFIX "subl", v->counter, "er", i, "%0", "s");
 }
 
 /**
@@ -151,7 +271,19 @@ static __always_inline int atomic_add_negative(int i, atomic_t *v)
  *
  * Atomically adds @i to @v and returns @i + @v
  */
-static __always_inline int atomic_add_return(int i, atomic_t *v)
+static __always_inline int __intentional_overflow(-1) atomic_add_return(int i, atomic_t *v)
+{
+	return i + xadd_check_overflow(&v->counter, i);
+}
+
+/**
+ * atomic_add_return_unchecked - add integer and return
+ * @i: integer value to add
+ * @v: pointer of type atomi_uncheckedc_t
+ *
+ * Atomically adds @i to @v and returns @i + @v
+ */
+static __always_inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v)
 {
 	return i + xadd(&v->counter, i);
 }
@@ -163,15 +295,24 @@ static __always_inline int atomic_add_return(int i, atomic_t *v)
  *
  * Atomically subtracts @i from @v and returns @v - @i
  */
-static __always_inline int atomic_sub_return(int i, atomic_t *v)
+static __always_inline int __intentional_overflow(-1) atomic_sub_return(int i, atomic_t *v)
 {
 	return atomic_add_return(-i, v);
 }
 
 #define atomic_inc_return(v)  (atomic_add_return(1, v))
+static __always_inline int atomic_inc_return_unchecked(atomic_unchecked_t *v)
+{
+	return atomic_add_return_unchecked(1, v);
+}
 #define atomic_dec_return(v)  (atomic_sub_return(1, v))
 
-static __always_inline int atomic_cmpxchg(atomic_t *v, int old, int new)
+static __always_inline int __intentional_overflow(-1) atomic_cmpxchg(atomic_t *v, int old, int new)
+{
+	return cmpxchg(&v->counter, old, new);
+}
+
+static __always_inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new)
 {
 	return cmpxchg(&v->counter, old, new);
 }
@@ -181,6 +322,11 @@ static inline int atomic_xchg(atomic_t *v, int new)
 	return xchg(&v->counter, new);
 }
 
+static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new)
+{
+	return xchg(&v->counter, new);
+}
+
 #define ATOMIC_OP(op)							\
 static inline void atomic_##op(int i, atomic_t *v)			\
 {									\
@@ -207,12 +353,25 @@ ATOMIC_OP(xor)
  */
 static __always_inline int __atomic_add_unless(atomic_t *v, int a, int u)
 {
-	int c, old;
+	int c, old, new;
 	c = atomic_read(v);
 	for (;;) {
-		if (unlikely(c == (u)))
+		if (unlikely(c == u))
 			break;
-		old = atomic_cmpxchg((v), c, c + (a));
+
+		asm volatile("addl %2,%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+			     "jno 0f\n"
+			     "subl %2,%0\n"
+			     "int $4\n0:\n"
+			     _ASM_EXTABLE(0b, 0b)
+#endif
+
+			     : "=r" (new)
+			     : "0" (c), "ir" (a));
+
+		old = atomic_cmpxchg(v, c, new);
 		if (likely(old == c))
 			break;
 		c = old;
@@ -221,6 +380,49 @@ static __always_inline int __atomic_add_unless(atomic_t *v, int a, int u)
 }
 
 /**
+ * atomic_inc_not_zero_hint - increment if not null
+ * @v: pointer of type atomic_t
+ * @hint: probable value of the atomic before the increment
+ *
+ * This version of atomic_inc_not_zero() gives a hint of probable
+ * value of the atomic. This helps processor to not read the memory
+ * before doing the atomic read/modify/write cycle, lowering
+ * number of bus transactions on some arches.
+ *
+ * Returns: 0 if increment was not done, 1 otherwise.
+ */
+#define atomic_inc_not_zero_hint atomic_inc_not_zero_hint
+static inline int atomic_inc_not_zero_hint(atomic_t *v, int hint)
+{
+	int val, c = hint, new;
+
+	/* sanity test, should be removed by compiler if hint is a constant */
+	if (!hint)
+		return __atomic_add_unless(v, 1, 0);
+
+	do {
+		asm volatile("incl %0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+			     "jno 0f\n"
+			     "decl %0\n"
+			     "int $4\n0:\n"
+			     _ASM_EXTABLE(0b, 0b)
+#endif
+
+			     : "=r" (new)
+			     : "0" (c));
+
+		val = atomic_cmpxchg(v, c, new);
+		if (val == c)
+			return 1;
+		c = val;
+	} while (c);
+
+	return 0;
+}
+
+/**
  * atomic_inc_short - increment of a short integer
  * @v: pointer to type int
  *
diff --git a/arch/x86/include/asm/atomic64_32.h b/arch/x86/include/asm/atomic64_32.h
index a984111..d1b3a88 100644
--- a/arch/x86/include/asm/atomic64_32.h
+++ b/arch/x86/include/asm/atomic64_32.h
@@ -11,6 +11,14 @@ typedef struct {
 	u64 __aligned(8) counter;
 } atomic64_t;
 
+#ifdef CONFIG_PAX_REFCOUNT
+typedef struct {
+	u64 __aligned(8) counter;
+} atomic64_unchecked_t;
+#else
+typedef atomic64_t atomic64_unchecked_t;
+#endif
+
 #define ATOMIC64_INIT(val)	{ (val) }
 
 #define __ATOMIC64_DECL(sym) void atomic64_##sym(atomic64_t *, ...)
@@ -36,21 +44,31 @@ typedef struct {
 	ATOMIC64_DECL_ONE(sym##_386)
 
 ATOMIC64_DECL_ONE(add_386);
+ATOMIC64_DECL_ONE(add_unchecked_386);
 ATOMIC64_DECL_ONE(sub_386);
+ATOMIC64_DECL_ONE(sub_unchecked_386);
 ATOMIC64_DECL_ONE(inc_386);
+ATOMIC64_DECL_ONE(inc_unchecked_386);
 ATOMIC64_DECL_ONE(dec_386);
+ATOMIC64_DECL_ONE(dec_unchecked_386);
 #endif
 
 #define alternative_atomic64(f, out, in...) \
 	__alternative_atomic64(f, f, ASM_OUTPUT2(out), ## in)
 
 ATOMIC64_DECL(read);
+ATOMIC64_DECL(read_unchecked);
 ATOMIC64_DECL(set);
+ATOMIC64_DECL(set_unchecked);
 ATOMIC64_DECL(xchg);
 ATOMIC64_DECL(add_return);
+ATOMIC64_DECL(add_return_unchecked);
 ATOMIC64_DECL(sub_return);
+ATOMIC64_DECL(sub_return_unchecked);
 ATOMIC64_DECL(inc_return);
+ATOMIC64_DECL(inc_return_unchecked);
 ATOMIC64_DECL(dec_return);
+ATOMIC64_DECL(dec_return_unchecked);
 ATOMIC64_DECL(dec_if_positive);
 ATOMIC64_DECL(inc_not_zero);
 ATOMIC64_DECL(add_unless);
@@ -76,6 +94,21 @@ static inline long long atomic64_cmpxchg(atomic64_t *v, long long o, long long n
 }
 
 /**
+ * atomic64_cmpxchg_unchecked - cmpxchg atomic64 variable
+ * @p: pointer to type atomic64_unchecked_t
+ * @o: expected value
+ * @n: new value
+ *
+ * Atomically sets @v to @n if it was equal to @o and returns
+ * the old value.
+ */
+
+static inline long long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *v, long long o, long long n)
+{
+	return cmpxchg64(&v->counter, o, n);
+}
+
+/**
  * atomic64_xchg - xchg atomic64 variable
  * @v: pointer to type atomic64_t
  * @n: value to assign
@@ -95,6 +128,25 @@ static inline long long atomic64_xchg(atomic64_t *v, long long n)
 }
 
 /**
+ * atomic64_xchg_unchecked - xchg atomic64 variable
+ * @v: pointer to type atomic64_unchecked_t
+ * @n: value to assign
+ *
+ * Atomically xchgs the value of @v to @n and returns
+ * the old value.
+ */
+static inline long long atomic64_xchg_unchecked(atomic64_unchecked_t *v, long long n)
+{
+	long long o;
+	unsigned high = (unsigned)(n >> 32);
+	unsigned low = (unsigned)n;
+	alternative_atomic64(xchg, "=&A" (o),
+			     "S" (v), "b" (low), "c" (high)
+			     : "memory");
+	return o;
+}
+
+/**
  * atomic64_set - set atomic64 variable
  * @v: pointer to type atomic64_t
  * @i: value to assign
@@ -111,6 +163,22 @@ static inline void atomic64_set(atomic64_t *v, long long i)
 }
 
 /**
+ * atomic64_set_unchecked - set atomic64 variable
+ * @v: pointer to type atomic64_unchecked_t
+ * @n: value to assign
+ *
+ * Atomically sets the value of @v to @n.
+ */
+static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long long i)
+{
+	unsigned high = (unsigned)(i >> 32);
+	unsigned low = (unsigned)i;
+	alternative_atomic64(set, /* no output */,
+			     "S" (v), "b" (low), "c" (high)
+			     : "eax", "edx", "memory");
+}
+
+/**
  * atomic64_read - read atomic64 variable
  * @v: pointer to type atomic64_t
  *
@@ -124,6 +192,19 @@ static inline long long atomic64_read(const atomic64_t *v)
  }
 
 /**
+ * atomic64_read_unchecked - read atomic64 variable
+ * @v: pointer to type atomic64_unchecked_t
+ *
+ * Atomically reads the value of @v and returns it.
+ */
+static inline long long __intentional_overflow(-1) atomic64_read_unchecked(const atomic64_unchecked_t *v)
+{
+	long long r;
+	alternative_atomic64(read, "=&A" (r), "c" (v) : "memory");
+	return r;
+ }
+
+/**
  * atomic64_add_return - add and return
  * @i: integer value to add
  * @v: pointer to type atomic64_t
@@ -138,6 +219,21 @@ static inline long long atomic64_add_return(long long i, atomic64_t *v)
 	return i;
 }
 
+/**
+ * atomic64_add_return_unchecked - add and return
+ * @i: integer value to add
+ * @v: pointer to type atomic64_unchecked_t
+ *
+ * Atomically adds @i to @v and returns @i + *@v
+ */
+static inline long long atomic64_add_return_unchecked(long long i, atomic64_unchecked_t *v)
+{
+	alternative_atomic64(add_return_unchecked,
+			     ASM_OUTPUT2("+A" (i), "+c" (v)),
+			     ASM_NO_INPUT_CLOBBER("memory"));
+	return i;
+}
+
 /*
  * Other variants with different arithmetic operators:
  */
@@ -157,6 +253,14 @@ static inline long long atomic64_inc_return(atomic64_t *v)
 	return a;
 }
 
+static inline long long atomic64_inc_return_unchecked(atomic64_unchecked_t *v)
+{
+	long long a;
+	alternative_atomic64(inc_return_unchecked, "=&A" (a),
+			     "S" (v) : "memory", "ecx");
+	return a;
+}
+
 static inline long long atomic64_dec_return(atomic64_t *v)
 {
 	long long a;
@@ -181,6 +285,21 @@ static inline long long atomic64_add(long long i, atomic64_t *v)
 }
 
 /**
+ * atomic64_add_unchecked - add integer to atomic64 variable
+ * @i: integer value to add
+ * @v: pointer to type atomic64_unchecked_t
+ *
+ * Atomically adds @i to @v.
+ */
+static inline long long atomic64_add_unchecked(long long i, atomic64_unchecked_t *v)
+{
+	__alternative_atomic64(add_unchecked, add_return_unchecked,
+			       ASM_OUTPUT2("+A" (i), "+c" (v)),
+			       ASM_NO_INPUT_CLOBBER("memory"));
+	return i;
+}
+
+/**
  * atomic64_sub - subtract the atomic64 variable
  * @i: integer value to subtract
  * @v: pointer to type atomic64_t
diff --git a/arch/x86/include/asm/atomic64_64.h b/arch/x86/include/asm/atomic64_64.h
index 0373510..3619c56 100644
--- a/arch/x86/include/asm/atomic64_64.h
+++ b/arch/x86/include/asm/atomic64_64.h
@@ -22,6 +22,18 @@ static inline long atomic64_read(const atomic64_t *v)
 }
 
 /**
+ * atomic64_read_unchecked - read atomic64 variable
+ * @v: pointer of type atomic64_unchecked_t
+ *
+ * Atomically reads the value of @v.
+ * Doesn't imply a read memory barrier.
+ */
+static inline long __intentional_overflow(-1) atomic64_read_unchecked(const atomic64_unchecked_t *v)
+{
+	return ACCESS_ONCE((v)->counter);
+}
+
+/**
  * atomic64_set - set atomic64 variable
  * @v: pointer to type atomic64_t
  * @i: required value
@@ -34,6 +46,18 @@ static inline void atomic64_set(atomic64_t *v, long i)
 }
 
 /**
+ * atomic64_set_unchecked - set atomic64 variable
+ * @v: pointer to type atomic64_unchecked_t
+ * @i: required value
+ *
+ * Atomically sets the value of @v to @i.
+ */
+static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long i)
+{
+	v->counter = i;
+}
+
+/**
  * atomic64_add - add integer to atomic64 variable
  * @i: integer value to add
  * @v: pointer to type atomic64_t
@@ -42,6 +66,28 @@ static inline void atomic64_set(atomic64_t *v, long i)
  */
 static __always_inline void atomic64_add(long i, atomic64_t *v)
 {
+	asm volatile(LOCK_PREFIX "addq %1,%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX "subq %1,%0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     : "=m" (v->counter)
+		     : "er" (i), "m" (v->counter));
+}
+
+/**
+ * atomic64_add_unchecked - add integer to atomic64 variable
+ * @i: integer value to add
+ * @v: pointer to type atomic64_unchecked_t
+ *
+ * Atomically adds @i to @v.
+ */
+static __always_inline void atomic64_add_unchecked(long i, atomic64_unchecked_t *v)
+{
 	asm volatile(LOCK_PREFIX "addq %1,%0"
 		     : "=m" (v->counter)
 		     : "er" (i), "m" (v->counter));
@@ -56,7 +102,29 @@ static __always_inline void atomic64_add(long i, atomic64_t *v)
  */
 static inline void atomic64_sub(long i, atomic64_t *v)
 {
-	asm volatile(LOCK_PREFIX "subq %1,%0"
+	asm volatile(LOCK_PREFIX "subq %1,%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX "addq %1,%0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     : "=m" (v->counter)
+		     : "er" (i), "m" (v->counter));
+}
+
+/**
+ * atomic64_sub_unchecked - subtract the atomic64 variable
+ * @i: integer value to subtract
+ * @v: pointer to type atomic64_unchecked_t
+ *
+ * Atomically subtracts @i from @v.
+ */
+static inline void atomic64_sub_unchecked(long i, atomic64_unchecked_t *v)
+{
+	asm volatile(LOCK_PREFIX "subq %1,%0\n"
 		     : "=m" (v->counter)
 		     : "er" (i), "m" (v->counter));
 }
@@ -72,7 +140,7 @@ static inline void atomic64_sub(long i, atomic64_t *v)
  */
 static inline int atomic64_sub_and_test(long i, atomic64_t *v)
 {
-	GEN_BINARY_RMWcc(LOCK_PREFIX "subq", v->counter, "er", i, "%0", "e");
+	GEN_BINARY_RMWcc(LOCK_PREFIX "subq", LOCK_PREFIX "addq", v->counter, "er", i, "%0", "e");
 }
 
 /**
@@ -83,6 +151,27 @@ static inline int atomic64_sub_and_test(long i, atomic64_t *v)
  */
 static __always_inline void atomic64_inc(atomic64_t *v)
 {
+	asm volatile(LOCK_PREFIX "incq %0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX "decq %0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     : "=m" (v->counter)
+		     : "m" (v->counter));
+}
+
+/**
+ * atomic64_inc_unchecked - increment atomic64 variable
+ * @v: pointer to type atomic64_unchecked_t
+ *
+ * Atomically increments @v by 1.
+ */
+static __always_inline void atomic64_inc_unchecked(atomic64_unchecked_t *v)
+{
 	asm volatile(LOCK_PREFIX "incq %0"
 		     : "=m" (v->counter)
 		     : "m" (v->counter));
@@ -96,7 +185,28 @@ static __always_inline void atomic64_inc(atomic64_t *v)
  */
 static __always_inline void atomic64_dec(atomic64_t *v)
 {
-	asm volatile(LOCK_PREFIX "decq %0"
+	asm volatile(LOCK_PREFIX "decq %0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX "incq %0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     : "=m" (v->counter)
+		     : "m" (v->counter));
+}
+
+/**
+ * atomic64_dec_unchecked - decrement atomic64 variable
+ * @v: pointer to type atomic64_t
+ *
+ * Atomically decrements @v by 1.
+ */
+static __always_inline void atomic64_dec_unchecked(atomic64_unchecked_t *v)
+{
+	asm volatile(LOCK_PREFIX "decq %0\n"
 		     : "=m" (v->counter)
 		     : "m" (v->counter));
 }
@@ -111,7 +221,7 @@ static __always_inline void atomic64_dec(atomic64_t *v)
  */
 static inline int atomic64_dec_and_test(atomic64_t *v)
 {
-	GEN_UNARY_RMWcc(LOCK_PREFIX "decq", v->counter, "%0", "e");
+	GEN_UNARY_RMWcc(LOCK_PREFIX "decq", LOCK_PREFIX "incq", v->counter, "%0", "e");
 }
 
 /**
@@ -124,7 +234,7 @@ static inline int atomic64_dec_and_test(atomic64_t *v)
  */
 static inline int atomic64_inc_and_test(atomic64_t *v)
 {
-	GEN_UNARY_RMWcc(LOCK_PREFIX "incq", v->counter, "%0", "e");
+	GEN_UNARY_RMWcc(LOCK_PREFIX "incq", LOCK_PREFIX "decq", v->counter, "%0", "e");
 }
 
 /**
@@ -138,7 +248,7 @@ static inline int atomic64_inc_and_test(atomic64_t *v)
  */
 static inline int atomic64_add_negative(long i, atomic64_t *v)
 {
-	GEN_BINARY_RMWcc(LOCK_PREFIX "addq", v->counter, "er", i, "%0", "s");
+	GEN_BINARY_RMWcc(LOCK_PREFIX "addq", LOCK_PREFIX "subq",  v->counter, "er", i, "%0", "s");
 }
 
 /**
@@ -150,6 +260,18 @@ static inline int atomic64_add_negative(long i, atomic64_t *v)
  */
 static __always_inline long atomic64_add_return(long i, atomic64_t *v)
 {
+	return i + xadd_check_overflow(&v->counter, i);
+}
+
+/**
+ * atomic64_add_return_unchecked - add and return
+ * @i: integer value to add
+ * @v: pointer to type atomic64_unchecked_t
+ *
+ * Atomically adds @i to @v and returns @i + @v
+ */
+static __always_inline long atomic64_add_return_unchecked(long i, atomic64_unchecked_t *v)
+{
 	return i + xadd(&v->counter, i);
 }
 
@@ -159,6 +281,10 @@ static inline long atomic64_sub_return(long i, atomic64_t *v)
 }
 
 #define atomic64_inc_return(v)  (atomic64_add_return(1, (v)))
+static inline long atomic64_inc_return_unchecked(atomic64_unchecked_t *v)
+{
+	return atomic64_add_return_unchecked(1, v);
+}
 #define atomic64_dec_return(v)  (atomic64_sub_return(1, (v)))
 
 static inline long atomic64_cmpxchg(atomic64_t *v, long old, long new)
@@ -166,11 +292,21 @@ static inline long atomic64_cmpxchg(atomic64_t *v, long old, long new)
 	return cmpxchg(&v->counter, old, new);
 }
 
+static inline long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *v, long old, long new)
+{
+	return cmpxchg(&v->counter, old, new);
+}
+
 static inline long atomic64_xchg(atomic64_t *v, long new)
 {
 	return xchg(&v->counter, new);
 }
 
+static inline long atomic64_xchg_unchecked(atomic64_unchecked_t *v, long new)
+{
+	return xchg(&v->counter, new);
+}
+
 /**
  * atomic64_add_unless - add unless the number is a given value
  * @v: pointer of type atomic64_t
@@ -182,17 +318,30 @@ static inline long atomic64_xchg(atomic64_t *v, long new)
  */
 static inline int atomic64_add_unless(atomic64_t *v, long a, long u)
 {
-	long c, old;
+	long c, old, new;
 	c = atomic64_read(v);
 	for (;;) {
-		if (unlikely(c == (u)))
+		if (unlikely(c == u))
 			break;
-		old = atomic64_cmpxchg((v), c, c + (a));
+
+		asm volatile("add %2,%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+			     "jno 0f\n"
+			     "sub %2,%0\n"
+			     "int $4\n0:\n"
+			     _ASM_EXTABLE(0b, 0b)
+#endif
+
+			     : "=r" (new)
+			     : "0" (c), "ir" (a));
+
+		old = atomic64_cmpxchg(v, c, new);
 		if (likely(old == c))
 			break;
 		c = old;
 	}
-	return c != (u);
+	return c != u;
 }
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h
index 7766d1c..f545428 100644
--- a/arch/x86/include/asm/bitops.h
+++ b/arch/x86/include/asm/bitops.h
@@ -50,7 +50,7 @@
  * a mask operation on a byte.
  */
 #define IS_IMMEDIATE(nr)		(__builtin_constant_p(nr))
-#define CONST_MASK_ADDR(nr, addr)	BITOP_ADDR((void *)(addr) + ((nr)>>3))
+#define CONST_MASK_ADDR(nr, addr)	BITOP_ADDR((volatile void *)(addr) + ((nr)>>3))
 #define CONST_MASK(nr)			(1 << ((nr) & 7))
 
 /**
@@ -203,7 +203,7 @@ static __always_inline void change_bit(long nr, volatile unsigned long *addr)
  */
 static __always_inline int test_and_set_bit(long nr, volatile unsigned long *addr)
 {
-	GEN_BINARY_RMWcc(LOCK_PREFIX "bts", *addr, "Ir", nr, "%0", "c");
+	GEN_BINARY_RMWcc_unchecked(LOCK_PREFIX "bts", *addr, "Ir", nr, "%0", "c");
 }
 
 /**
@@ -249,7 +249,7 @@ static __always_inline int __test_and_set_bit(long nr, volatile unsigned long *a
  */
 static __always_inline int test_and_clear_bit(long nr, volatile unsigned long *addr)
 {
-	GEN_BINARY_RMWcc(LOCK_PREFIX "btr", *addr, "Ir", nr, "%0", "c");
+	GEN_BINARY_RMWcc_unchecked(LOCK_PREFIX "btr", *addr, "Ir", nr, "%0", "c");
 }
 
 /**
@@ -302,7 +302,7 @@ static __always_inline int __test_and_change_bit(long nr, volatile unsigned long
  */
 static __always_inline int test_and_change_bit(long nr, volatile unsigned long *addr)
 {
-	GEN_BINARY_RMWcc(LOCK_PREFIX "btc", *addr, "Ir", nr, "%0", "c");
+	GEN_BINARY_RMWcc_unchecked(LOCK_PREFIX "btc", *addr, "Ir", nr, "%0", "c");
 }
 
 static __always_inline int constant_test_bit(long nr, const volatile unsigned long *addr)
@@ -343,7 +343,7 @@ static int test_bit(int nr, const volatile unsigned long *addr);
  *
  * Undefined if no bit exists, so code should check against 0 first.
  */
-static __always_inline unsigned long __ffs(unsigned long word)
+static __always_inline unsigned long __intentional_overflow(-1) __ffs(unsigned long word)
 {
 	asm("rep; bsf %1,%0"
 		: "=r" (word)
@@ -357,7 +357,7 @@ static __always_inline unsigned long __ffs(unsigned long word)
  *
  * Undefined if no zero exists, so code should check against ~0UL first.
  */
-static __always_inline unsigned long ffz(unsigned long word)
+static __always_inline unsigned long __intentional_overflow(-1) ffz(unsigned long word)
 {
 	asm("rep; bsf %1,%0"
 		: "=r" (word)
@@ -371,7 +371,7 @@ static __always_inline unsigned long ffz(unsigned long word)
  *
  * Undefined if no set bit exists, so code should check against 0 first.
  */
-static __always_inline unsigned long __fls(unsigned long word)
+static __always_inline unsigned long __intentional_overflow(-1) __fls(unsigned long word)
 {
 	asm("bsr %1,%0"
 	    : "=r" (word)
@@ -434,7 +434,7 @@ static __always_inline int ffs(int x)
  * set bit if value is nonzero. The last (most significant) bit is
  * at position 32.
  */
-static __always_inline int fls(int x)
+static __always_inline int __intentional_overflow(-1) fls(int x)
 {
 	int r;
 
@@ -476,7 +476,7 @@ static __always_inline int fls(int x)
  * at position 64.
  */
 #ifdef CONFIG_X86_64
-static __always_inline int fls64(__u64 x)
+static __always_inline __intentional_overflow(-1) int fls64(__u64 x)
 {
 	int bitpos = -1;
 	/*
diff --git a/arch/x86/include/asm/boot.h b/arch/x86/include/asm/boot.h
index 6b8d6e8..3cbf4f8 100644
--- a/arch/x86/include/asm/boot.h
+++ b/arch/x86/include/asm/boot.h
@@ -6,7 +6,7 @@
 #include <uapi/asm/boot.h>
 
 /* Physical address where kernel should be loaded. */
-#define LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \
+#define ____LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \
 				+ (CONFIG_PHYSICAL_ALIGN - 1)) \
 				& ~(CONFIG_PHYSICAL_ALIGN - 1))
 
diff --git a/arch/x86/include/asm/cache.h b/arch/x86/include/asm/cache.h
index 48f99f1..26ab08a 100644
--- a/arch/x86/include/asm/cache.h
+++ b/arch/x86/include/asm/cache.h
@@ -5,12 +5,12 @@
 
 /* L1 cache line size */
 #define L1_CACHE_SHIFT	(CONFIG_X86_L1_CACHE_SHIFT)
-#define L1_CACHE_BYTES	(1 << L1_CACHE_SHIFT)
+#define L1_CACHE_BYTES	(_AC(1,UL) << L1_CACHE_SHIFT)
 
 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
 
 #define INTERNODE_CACHE_SHIFT CONFIG_X86_INTERNODE_CACHE_SHIFT
-#define INTERNODE_CACHE_BYTES (1 << INTERNODE_CACHE_SHIFT)
+#define INTERNODE_CACHE_BYTES (_AC(1,UL) << INTERNODE_CACHE_SHIFT)
 
 #ifdef CONFIG_X86_VSMP
 #ifdef CONFIG_SMP
diff --git a/arch/x86/include/asm/checksum_32.h b/arch/x86/include/asm/checksum_32.h
index 532f85e..b1d8a66a 100644
--- a/arch/x86/include/asm/checksum_32.h
+++ b/arch/x86/include/asm/checksum_32.h
@@ -31,6 +31,14 @@ asmlinkage __wsum csum_partial_copy_generic(const void *src, void *dst,
 					    int len, __wsum sum,
 					    int *src_err_ptr, int *dst_err_ptr);
 
+asmlinkage __wsum csum_partial_copy_generic_to_user(const void *src, void *dst,
+						  int len, __wsum sum,
+						  int *src_err_ptr, int *dst_err_ptr);
+
+asmlinkage __wsum csum_partial_copy_generic_from_user(const void *src, void *dst,
+						  int len, __wsum sum,
+						  int *src_err_ptr, int *dst_err_ptr);
+
 /*
  *	Note: when you get a NULL pointer exception here this means someone
  *	passed in an incorrect kernel address to one of these functions.
@@ -53,7 +61,7 @@ static inline __wsum csum_partial_copy_from_user(const void __user *src,
 
 	might_sleep();
 	stac();
-	ret = csum_partial_copy_generic((__force void *)src, dst,
+	ret = csum_partial_copy_generic_from_user((__force void *)src, dst,
 					len, sum, err_ptr, NULL);
 	clac();
 
@@ -184,7 +192,7 @@ static inline __wsum csum_and_copy_to_user(const void *src,
 	might_sleep();
 	if (access_ok(VERIFY_WRITE, dst, len)) {
 		stac();
-		ret = csum_partial_copy_generic(src, (__force void *)dst,
+		ret = csum_partial_copy_generic_to_user(src, (__force void *)dst,
 						len, sum, NULL, err_ptr);
 		clac();
 		return ret;
diff --git a/arch/x86/include/asm/cmpxchg.h b/arch/x86/include/asm/cmpxchg.h
index 9733361..2053014 100644
--- a/arch/x86/include/asm/cmpxchg.h
+++ b/arch/x86/include/asm/cmpxchg.h
@@ -15,8 +15,12 @@ extern void __cmpxchg_wrong_size(void)
 	__compiletime_error("Bad argument size for cmpxchg");
 extern void __xadd_wrong_size(void)
 	__compiletime_error("Bad argument size for xadd");
+extern void __xadd_check_overflow_wrong_size(void)
+	__compiletime_error("Bad argument size for xadd_check_overflow");
 extern void __add_wrong_size(void)
 	__compiletime_error("Bad argument size for add");
+extern void __add_check_overflow_wrong_size(void)
+	__compiletime_error("Bad argument size for add_check_overflow");
 
 /*
  * Constants for operation sizes. On 32-bit, the 64-bit size it set to
@@ -68,6 +72,38 @@ extern void __add_wrong_size(void)
 		__ret;							\
 	})
 
+#ifdef CONFIG_PAX_REFCOUNT
+#define __xchg_op_check_overflow(ptr, arg, op, lock)			\
+	({								\
+	        __typeof__ (*(ptr)) __ret = (arg);			\
+		switch (sizeof(*(ptr))) {				\
+		case __X86_CASE_L:					\
+			asm volatile (lock #op "l %0, %1\n"		\
+				      "jno 0f\n"			\
+				      "mov %0,%1\n"			\
+				      "int $4\n0:\n"			\
+				      _ASM_EXTABLE(0b, 0b)		\
+				      : "+r" (__ret), "+m" (*(ptr))	\
+				      : : "memory", "cc");		\
+			break;						\
+		case __X86_CASE_Q:					\
+			asm volatile (lock #op "q %q0, %1\n"		\
+				      "jno 0f\n"			\
+				      "mov %0,%1\n"			\
+				      "int $4\n0:\n"			\
+				      _ASM_EXTABLE(0b, 0b)		\
+				      : "+r" (__ret), "+m" (*(ptr))	\
+				      : : "memory", "cc");		\
+			break;						\
+		default:						\
+			__ ## op ## _check_overflow_wrong_size();	\
+		}							\
+		__ret;							\
+	})
+#else
+#define __xchg_op_check_overflow(ptr, arg, op, lock) __xchg_op(ptr, arg, op, lock)
+#endif
+
 /*
  * Note: no "lock" prefix even on SMP: xchg always implies lock anyway.
  * Since this is generally used to protect other memory information, we
@@ -166,6 +202,9 @@ extern void __add_wrong_size(void)
 #define xadd_sync(ptr, inc)	__xadd((ptr), (inc), "lock; ")
 #define xadd_local(ptr, inc)	__xadd((ptr), (inc), "")
 
+#define __xadd_check_overflow(ptr, inc, lock)	__xchg_op_check_overflow((ptr), (inc), xadd, lock)
+#define xadd_check_overflow(ptr, inc)		__xadd_check_overflow((ptr), (inc), LOCK_PREFIX)
+
 #define __add(ptr, inc, lock)						\
 	({								\
 	        __typeof__ (*(ptr)) __ret = (inc);			\
diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
index ebb102e..4240767 100644
--- a/arch/x86/include/asm/compat.h
+++ b/arch/x86/include/asm/compat.h
@@ -41,7 +41,11 @@ typedef s64 __attribute__((aligned(4))) compat_s64;
 typedef u32		compat_uint_t;
 typedef u32		compat_ulong_t;
 typedef u64 __attribute__((aligned(4))) compat_u64;
+#ifdef CHECKER_PLUGIN_USER
 typedef u32		compat_uptr_t;
+#else
+typedef u32		__user compat_uptr_t;
+#endif
 
 struct compat_timespec {
 	compat_time_t	tv_sec;
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
index aeab479..5467e0b 100644
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -164,7 +164,7 @@ static __always_inline __pure bool _static_cpu_has(u16 bit)
 			 " .byte 5f - 4f\n"		/* repl len */
 			 " .byte 3b - 2b\n"		/* pad len */
 			 ".previous\n"
-			 ".section .altinstr_replacement,\"ax\"\n"
+			 ".section .altinstr_replacement,\"a\"\n"
 			 "4: jmp %l[t_no]\n"
 			 "5:\n"
 			 ".previous\n"
diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
index 8f9afef..378b605 100644
--- a/arch/x86/include/asm/cpufeatures.h
+++ b/arch/x86/include/asm/cpufeatures.h
@@ -204,7 +204,8 @@
 
 #define X86_FEATURE_VMMCALL     ( 8*32+15) /* Prefer vmmcall to vmcall */
 #define X86_FEATURE_XENPV       ( 8*32+16) /* "" Xen paravirtual guest */
-
+#define X86_FEATURE_PCIDUDEREF	( 8*32+30) /* PaX PCID based UDEREF */
+#define X86_FEATURE_STRONGUDEREF (8*32+31) /* PaX PCID based strong UDEREF */
 
 /* Intel-defined CPU features, CPUID level 0x00000007:0 (ebx), word 9 */
 #define X86_FEATURE_FSGSBASE	( 9*32+ 0) /* {RD/WR}{FS/GS}BASE instructions*/
@@ -212,7 +213,7 @@
 #define X86_FEATURE_BMI1	( 9*32+ 3) /* 1st group bit manipulation extensions */
 #define X86_FEATURE_HLE		( 9*32+ 4) /* Hardware Lock Elision */
 #define X86_FEATURE_AVX2	( 9*32+ 5) /* AVX2 instructions */
-#define X86_FEATURE_SMEP	( 9*32+ 7) /* Supervisor Mode Execution Protection */
+#define X86_FEATURE_SMEP	( 9*32+ 7) /* Supervisor Mode Execution Prevention */
 #define X86_FEATURE_BMI2	( 9*32+ 8) /* 2nd group bit manipulation extensions */
 #define X86_FEATURE_ERMS	( 9*32+ 9) /* Enhanced REP MOVSB/STOSB */
 #define X86_FEATURE_INVPCID	( 9*32+10) /* Invalidate Processor Context ID */
diff --git a/arch/x86/include/asm/crypto/camellia.h b/arch/x86/include/asm/crypto/camellia.h
index bb93333..e3d3d57 100644
--- a/arch/x86/include/asm/crypto/camellia.h
+++ b/arch/x86/include/asm/crypto/camellia.h
@@ -39,34 +39,35 @@ extern int xts_camellia_setkey(struct crypto_tfm *tfm, const u8 *key,
 /* regular block cipher functions */
 asmlinkage void __camellia_enc_blk(struct camellia_ctx *ctx, u8 *dst,
 				   const u8 *src, bool xor);
-asmlinkage void camellia_dec_blk(struct camellia_ctx *ctx, u8 *dst,
+asmlinkage void camellia_dec_blk(void *ctx, u8 *dst,
 				 const u8 *src);
 
 /* 2-way parallel cipher functions */
 asmlinkage void __camellia_enc_blk_2way(struct camellia_ctx *ctx, u8 *dst,
 					const u8 *src, bool xor);
-asmlinkage void camellia_dec_blk_2way(struct camellia_ctx *ctx, u8 *dst,
+asmlinkage void camellia_dec_blk_2way(void *ctx, u8 *dst,
 				      const u8 *src);
 
 /* 16-way parallel cipher functions (avx/aes-ni) */
-asmlinkage void camellia_ecb_enc_16way(struct camellia_ctx *ctx, u8 *dst,
+asmlinkage void camellia_ecb_enc_16way(void *ctx, u8 *dst,
 				       const u8 *src);
-asmlinkage void camellia_ecb_dec_16way(struct camellia_ctx *ctx, u8 *dst,
+asmlinkage void camellia_ecb_dec_16way(void *ctx, u8 *dst,
 				       const u8 *src);
 
-asmlinkage void camellia_cbc_dec_16way(struct camellia_ctx *ctx, u8 *dst,
+asmlinkage void camellia_cbc_dec_16way(void *ctx, u8 *dst,
 				       const u8 *src);
-asmlinkage void camellia_ctr_16way(struct camellia_ctx *ctx, u8 *dst,
-				   const u8 *src, le128 *iv);
+asmlinkage void camellia_ctr_16way(void *ctx, u128 *dst,
+				   const u128 *src, le128 *iv);
 
-asmlinkage void camellia_xts_enc_16way(struct camellia_ctx *ctx, u8 *dst,
-				       const u8 *src, le128 *iv);
-asmlinkage void camellia_xts_dec_16way(struct camellia_ctx *ctx, u8 *dst,
-				       const u8 *src, le128 *iv);
+asmlinkage void camellia_xts_enc_16way(void *ctx, u128 *dst,
+				       const u128 *src, le128 *iv);
+asmlinkage void camellia_xts_dec_16way(void *ctx, u128 *dst,
+				       const u128 *src, le128 *iv);
 
-static inline void camellia_enc_blk(struct camellia_ctx *ctx, u8 *dst,
+static inline void camellia_enc_blk(void *_ctx, u8 *dst,
 				    const u8 *src)
 {
+	struct camellia_ctx *ctx = _ctx;
 	__camellia_enc_blk(ctx, dst, src, false);
 }
 
@@ -76,9 +77,10 @@ static inline void camellia_enc_blk_xor(struct camellia_ctx *ctx, u8 *dst,
 	__camellia_enc_blk(ctx, dst, src, true);
 }
 
-static inline void camellia_enc_blk_2way(struct camellia_ctx *ctx, u8 *dst,
+static inline void camellia_enc_blk_2way(void *_ctx, u8 *dst,
 					 const u8 *src)
 {
+	struct camellia_ctx *ctx = _ctx;
 	__camellia_enc_blk_2way(ctx, dst, src, false);
 }
 
@@ -89,7 +91,7 @@ static inline void camellia_enc_blk_xor_2way(struct camellia_ctx *ctx, u8 *dst,
 }
 
 /* glue helpers */
-extern void camellia_decrypt_cbc_2way(void *ctx, u128 *dst, const u128 *src);
+extern void camellia_decrypt_cbc_2way(void *ctx, u8 *dst, const u8 *src);
 extern void camellia_crypt_ctr(void *ctx, u128 *dst, const u128 *src,
 			       le128 *iv);
 extern void camellia_crypt_ctr_2way(void *ctx, u128 *dst, const u128 *src,
diff --git a/arch/x86/include/asm/crypto/glue_helper.h b/arch/x86/include/asm/crypto/glue_helper.h
index 03bb106..9e7a45c 100644
--- a/arch/x86/include/asm/crypto/glue_helper.h
+++ b/arch/x86/include/asm/crypto/glue_helper.h
@@ -11,16 +11,16 @@
 #include <crypto/b128ops.h>
 
 typedef void (*common_glue_func_t)(void *ctx, u8 *dst, const u8 *src);
-typedef void (*common_glue_cbc_func_t)(void *ctx, u128 *dst, const u128 *src);
+typedef void (*common_glue_cbc_func_t)(void *ctx, u8 *dst, const u8 *src);
 typedef void (*common_glue_ctr_func_t)(void *ctx, u128 *dst, const u128 *src,
 				       le128 *iv);
 typedef void (*common_glue_xts_func_t)(void *ctx, u128 *dst, const u128 *src,
 				       le128 *iv);
 
-#define GLUE_FUNC_CAST(fn) ((common_glue_func_t)(fn))
-#define GLUE_CBC_FUNC_CAST(fn) ((common_glue_cbc_func_t)(fn))
-#define GLUE_CTR_FUNC_CAST(fn) ((common_glue_ctr_func_t)(fn))
-#define GLUE_XTS_FUNC_CAST(fn) ((common_glue_xts_func_t)(fn))
+#define GLUE_FUNC_CAST(fn) (fn)
+#define GLUE_CBC_FUNC_CAST(fn) (fn)
+#define GLUE_CTR_FUNC_CAST(fn) (fn)
+#define GLUE_XTS_FUNC_CAST(fn) (fn)
 
 struct common_glue_func_entry {
 	unsigned int num_blocks; /* number of blocks that @fn will process */
diff --git a/arch/x86/include/asm/crypto/serpent-avx.h b/arch/x86/include/asm/crypto/serpent-avx.h
index 33c2b8a..586871f 100644
--- a/arch/x86/include/asm/crypto/serpent-avx.h
+++ b/arch/x86/include/asm/crypto/serpent-avx.h
@@ -16,20 +16,20 @@ struct serpent_xts_ctx {
 	struct serpent_ctx crypt_ctx;
 };
 
-asmlinkage void serpent_ecb_enc_8way_avx(struct serpent_ctx *ctx, u8 *dst,
+asmlinkage void serpent_ecb_enc_8way_avx(void *ctx, u8 *dst,
 					 const u8 *src);
-asmlinkage void serpent_ecb_dec_8way_avx(struct serpent_ctx *ctx, u8 *dst,
+asmlinkage void serpent_ecb_dec_8way_avx(void *ctx, u8 *dst,
 					 const u8 *src);
 
-asmlinkage void serpent_cbc_dec_8way_avx(struct serpent_ctx *ctx, u8 *dst,
+asmlinkage void serpent_cbc_dec_8way_avx(void *ctx, u8 *dst,
 					 const u8 *src);
-asmlinkage void serpent_ctr_8way_avx(struct serpent_ctx *ctx, u8 *dst,
-				     const u8 *src, le128 *iv);
+asmlinkage void serpent_ctr_8way_avx(void *ctx, u128 *dst,
+				     const u128 *src, le128 *iv);
 
-asmlinkage void serpent_xts_enc_8way_avx(struct serpent_ctx *ctx, u8 *dst,
-					 const u8 *src, le128 *iv);
-asmlinkage void serpent_xts_dec_8way_avx(struct serpent_ctx *ctx, u8 *dst,
-					 const u8 *src, le128 *iv);
+asmlinkage void serpent_xts_enc_8way_avx(void *ctx, u128 *dst,
+					 const u128 *src, le128 *iv);
+asmlinkage void serpent_xts_dec_8way_avx(void *ctx, u128 *dst,
+					 const u128 *src, le128 *iv);
 
 extern void __serpent_crypt_ctr(void *ctx, u128 *dst, const u128 *src,
 				le128 *iv);
diff --git a/arch/x86/include/asm/crypto/serpent-sse2.h b/arch/x86/include/asm/crypto/serpent-sse2.h
index e6e77df..fe42081 100644
--- a/arch/x86/include/asm/crypto/serpent-sse2.h
+++ b/arch/x86/include/asm/crypto/serpent-sse2.h
@@ -13,7 +13,7 @@ asmlinkage void __serpent_enc_blk_4way(struct serpent_ctx *ctx, u8 *dst,
 asmlinkage void serpent_dec_blk_4way(struct serpent_ctx *ctx, u8 *dst,
 				     const u8 *src);
 
-static inline void serpent_enc_blk_xway(struct serpent_ctx *ctx, u8 *dst,
+static inline void serpent_enc_blk_xway(void *ctx, u8 *dst,
 					const u8 *src)
 {
 	__serpent_enc_blk_4way(ctx, dst, src, false);
@@ -25,7 +25,7 @@ static inline void serpent_enc_blk_xway_xor(struct serpent_ctx *ctx, u8 *dst,
 	__serpent_enc_blk_4way(ctx, dst, src, true);
 }
 
-static inline void serpent_dec_blk_xway(struct serpent_ctx *ctx, u8 *dst,
+static inline void serpent_dec_blk_xway(void *ctx, u8 *dst,
 					const u8 *src)
 {
 	serpent_dec_blk_4way(ctx, dst, src);
@@ -40,7 +40,7 @@ asmlinkage void __serpent_enc_blk_8way(struct serpent_ctx *ctx, u8 *dst,
 asmlinkage void serpent_dec_blk_8way(struct serpent_ctx *ctx, u8 *dst,
 				     const u8 *src);
 
-static inline void serpent_enc_blk_xway(struct serpent_ctx *ctx, u8 *dst,
+static inline void serpent_enc_blk_xway(void *ctx, u8 *dst,
 				   const u8 *src)
 {
 	__serpent_enc_blk_8way(ctx, dst, src, false);
@@ -52,7 +52,7 @@ static inline void serpent_enc_blk_xway_xor(struct serpent_ctx *ctx, u8 *dst,
 	__serpent_enc_blk_8way(ctx, dst, src, true);
 }
 
-static inline void serpent_dec_blk_xway(struct serpent_ctx *ctx, u8 *dst,
+static inline void serpent_dec_blk_xway(void *ctx, u8 *dst,
 				   const u8 *src)
 {
 	serpent_dec_blk_8way(ctx, dst, src);
diff --git a/arch/x86/include/asm/crypto/twofish.h b/arch/x86/include/asm/crypto/twofish.h
index 878c51c..86fc65f 100644
--- a/arch/x86/include/asm/crypto/twofish.h
+++ b/arch/x86/include/asm/crypto/twofish.h
@@ -17,19 +17,19 @@ struct twofish_xts_ctx {
 };
 
 /* regular block cipher functions from twofish_x86_64 module */
-asmlinkage void twofish_enc_blk(struct twofish_ctx *ctx, u8 *dst,
+asmlinkage void twofish_enc_blk(void *ctx, u8 *dst,
 				const u8 *src);
-asmlinkage void twofish_dec_blk(struct twofish_ctx *ctx, u8 *dst,
+asmlinkage void twofish_dec_blk(void *ctx, u8 *dst,
 				const u8 *src);
 
 /* 3-way parallel cipher functions */
-asmlinkage void __twofish_enc_blk_3way(struct twofish_ctx *ctx, u8 *dst,
+asmlinkage void __twofish_enc_blk_3way(void *ctx, u8 *dst,
 				       const u8 *src, bool xor);
-asmlinkage void twofish_dec_blk_3way(struct twofish_ctx *ctx, u8 *dst,
+asmlinkage void twofish_dec_blk_3way(void *ctx, u8 *dst,
 				     const u8 *src);
 
 /* helpers from twofish_x86_64-3way module */
-extern void twofish_dec_blk_cbc_3way(void *ctx, u128 *dst, const u128 *src);
+extern void twofish_dec_blk_cbc_3way(void *ctx, u8 *dst, const u8 *src);
 extern void twofish_enc_blk_ctr(void *ctx, u128 *dst, const u128 *src,
 				le128 *iv);
 extern void twofish_enc_blk_ctr_3way(void *ctx, u128 *dst, const u128 *src,
diff --git a/arch/x86/include/asm/desc.h b/arch/x86/include/asm/desc.h
index 4e10d73..7319a47 100644
--- a/arch/x86/include/asm/desc.h
+++ b/arch/x86/include/asm/desc.h
@@ -4,6 +4,7 @@
 #include <asm/desc_defs.h>
 #include <asm/ldt.h>
 #include <asm/mmu.h>
+#include <asm/pgtable.h>
 
 #include <linux/smp.h>
 #include <linux/percpu.h>
@@ -17,6 +18,7 @@ static inline void fill_ldt(struct desc_struct *desc, const struct user_desc *in
 
 	desc->type		= (info->read_exec_only ^ 1) << 1;
 	desc->type	       |= info->contents << 2;
+	desc->type	       |= info->seg_not_present ^ 1;
 
 	desc->s			= 1;
 	desc->dpl		= 0x3;
@@ -35,19 +37,14 @@ static inline void fill_ldt(struct desc_struct *desc, const struct user_desc *in
 }
 
 extern struct desc_ptr idt_descr;
-extern gate_desc idt_table[];
-extern struct desc_ptr debug_idt_descr;
-extern gate_desc debug_idt_table[];
-
-struct gdt_page {
-	struct desc_struct gdt[GDT_ENTRIES];
-} __attribute__((aligned(PAGE_SIZE)));
-
-DECLARE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page);
+extern gate_desc idt_table[IDT_ENTRIES];
+extern const struct desc_ptr debug_idt_descr;
+extern gate_desc debug_idt_table[IDT_ENTRIES];
 
+extern struct desc_struct cpu_gdt_table[NR_CPUS][PAGE_SIZE / sizeof(struct desc_struct)];
 static inline struct desc_struct *get_cpu_gdt_table(unsigned int cpu)
 {
-	return per_cpu(gdt_page, cpu).gdt;
+	return cpu_gdt_table[cpu];
 }
 
 #ifdef CONFIG_X86_64
@@ -72,8 +69,14 @@ static inline void pack_gate(gate_desc *gate, unsigned char type,
 			     unsigned long base, unsigned dpl, unsigned flags,
 			     unsigned short seg)
 {
-	gate->a = (seg << 16) | (base & 0xffff);
-	gate->b = (base & 0xffff0000) | (((0x80 | type | (dpl << 5)) & 0xff) << 8);
+	gate->gate.offset_low	= base;
+	gate->gate.seg		= seg;
+	gate->gate.reserved	= 0;
+	gate->gate.type		= type;
+	gate->gate.s		= 0;
+	gate->gate.dpl		= dpl;
+	gate->gate.p		= 1;
+	gate->gate.offset_high	= base >> 16;
 }
 
 #endif
@@ -118,12 +121,16 @@ static inline void paravirt_free_ldt(struct desc_struct *ldt, unsigned entries)
 
 static inline void native_write_idt_entry(gate_desc *idt, int entry, const gate_desc *gate)
 {
+	pax_open_kernel();
 	memcpy(&idt[entry], gate, sizeof(*gate));
+	pax_close_kernel();
 }
 
 static inline void native_write_ldt_entry(struct desc_struct *ldt, int entry, const void *desc)
 {
+	pax_open_kernel();
 	memcpy(&ldt[entry], desc, 8);
+	pax_close_kernel();
 }
 
 static inline void
@@ -137,7 +144,9 @@ native_write_gdt_entry(struct desc_struct *gdt, int entry, const void *desc, int
 	default:	size = sizeof(*gdt);		break;
 	}
 
+	pax_open_kernel();
 	memcpy(&gdt[entry], desc, size);
+	pax_close_kernel();
 }
 
 static inline void pack_descriptor(struct desc_struct *desc, unsigned long base,
@@ -210,7 +219,9 @@ static inline void native_set_ldt(const void *addr, unsigned int entries)
 
 static inline void native_load_tr_desc(void)
 {
+	pax_open_kernel();
 	asm volatile("ltr %w0"::"q" (GDT_ENTRY_TSS*8));
+	pax_close_kernel();
 }
 
 static inline void native_load_gdt(const struct desc_ptr *dtr)
@@ -247,8 +258,10 @@ static inline void native_load_tls(struct thread_struct *t, unsigned int cpu)
 	struct desc_struct *gdt = get_cpu_gdt_table(cpu);
 	unsigned int i;
 
+	pax_open_kernel();
 	for (i = 0; i < GDT_ENTRY_TLS_ENTRIES; i++)
 		gdt[GDT_ENTRY_TLS_MIN + i] = t->tls_array[i];
+	pax_close_kernel();
 }
 
 /* This intentionally ignores lm, since 32-bit apps don't have that field. */
@@ -280,7 +293,7 @@ static inline void clear_LDT(void)
 	set_ldt(NULL, 0);
 }
 
-static inline unsigned long get_desc_base(const struct desc_struct *desc)
+static inline unsigned long __intentional_overflow(-1) get_desc_base(const struct desc_struct *desc)
 {
 	return (unsigned)(desc->base0 | ((desc->base1) << 16) | ((desc->base2) << 24));
 }
@@ -304,7 +317,7 @@ static inline void set_desc_limit(struct desc_struct *desc, unsigned long limit)
 }
 
 #ifdef CONFIG_X86_64
-static inline void set_nmi_gate(int gate, void *addr)
+static inline void set_nmi_gate(int gate, const void *addr)
 {
 	gate_desc s;
 
@@ -314,14 +327,14 @@ static inline void set_nmi_gate(int gate, void *addr)
 #endif
 
 #ifdef CONFIG_TRACING
-extern struct desc_ptr trace_idt_descr;
-extern gate_desc trace_idt_table[];
+extern const struct desc_ptr trace_idt_descr;
+extern gate_desc trace_idt_table[IDT_ENTRIES];
 static inline void write_trace_idt_entry(int entry, const gate_desc *gate)
 {
 	write_idt_entry(trace_idt_table, entry, gate);
 }
 
-static inline void _trace_set_gate(int gate, unsigned type, void *addr,
+static inline void _trace_set_gate(int gate, unsigned type, const void *addr,
 				   unsigned dpl, unsigned ist, unsigned seg)
 {
 	gate_desc s;
@@ -341,7 +354,7 @@ static inline void write_trace_idt_entry(int entry, const gate_desc *gate)
 #define _trace_set_gate(gate, type, addr, dpl, ist, seg)
 #endif
 
-static inline void _set_gate(int gate, unsigned type, void *addr,
+static inline void _set_gate(int gate, unsigned type, const void *addr,
 			     unsigned dpl, unsigned ist, unsigned seg)
 {
 	gate_desc s;
@@ -364,14 +377,14 @@ static inline void _set_gate(int gate, unsigned type, void *addr,
 #define set_intr_gate_notrace(n, addr)					\
 	do {								\
 		BUG_ON((unsigned)n > 0xFF);				\
-		_set_gate(n, GATE_INTERRUPT, (void *)addr, 0, 0,	\
+		_set_gate(n, GATE_INTERRUPT, (const void *)addr, 0, 0,	\
 			  __KERNEL_CS);					\
 	} while (0)
 
 #define set_intr_gate(n, addr)						\
 	do {								\
 		set_intr_gate_notrace(n, addr);				\
-		_trace_set_gate(n, GATE_INTERRUPT, (void *)trace_##addr,\
+		_trace_set_gate(n, GATE_INTERRUPT, (const void *)trace_##addr,\
 				0, 0, __KERNEL_CS);			\
 	} while (0)
 
@@ -399,19 +412,19 @@ static inline void alloc_system_vector(int vector)
 /*
  * This routine sets up an interrupt gate at directory privilege level 3.
  */
-static inline void set_system_intr_gate(unsigned int n, void *addr)
+static inline void set_system_intr_gate(unsigned int n, const void *addr)
 {
 	BUG_ON((unsigned)n > 0xFF);
 	_set_gate(n, GATE_INTERRUPT, addr, 0x3, 0, __KERNEL_CS);
 }
 
-static inline void set_system_trap_gate(unsigned int n, void *addr)
+static inline void set_system_trap_gate(unsigned int n, const void *addr)
 {
 	BUG_ON((unsigned)n > 0xFF);
 	_set_gate(n, GATE_TRAP, addr, 0x3, 0, __KERNEL_CS);
 }
 
-static inline void set_trap_gate(unsigned int n, void *addr)
+static inline void set_trap_gate(unsigned int n, const void *addr)
 {
 	BUG_ON((unsigned)n > 0xFF);
 	_set_gate(n, GATE_TRAP, addr, 0, 0, __KERNEL_CS);
@@ -420,16 +433,16 @@ static inline void set_trap_gate(unsigned int n, void *addr)
 static inline void set_task_gate(unsigned int n, unsigned int gdt_entry)
 {
 	BUG_ON((unsigned)n > 0xFF);
-	_set_gate(n, GATE_TASK, (void *)0, 0, 0, (gdt_entry<<3));
+	_set_gate(n, GATE_TASK, (const void *)0, 0, 0, (gdt_entry<<3));
 }
 
-static inline void set_intr_gate_ist(int n, void *addr, unsigned ist)
+static inline void set_intr_gate_ist(int n, const void *addr, unsigned ist)
 {
 	BUG_ON((unsigned)n > 0xFF);
 	_set_gate(n, GATE_INTERRUPT, addr, 0, ist, __KERNEL_CS);
 }
 
-static inline void set_system_intr_gate_ist(int n, void *addr, unsigned ist)
+static inline void set_system_intr_gate_ist(int n, const void *addr, unsigned ist)
 {
 	BUG_ON((unsigned)n > 0xFF);
 	_set_gate(n, GATE_INTERRUPT, addr, 0x3, ist, __KERNEL_CS);
@@ -501,4 +514,17 @@ static inline void load_current_idt(void)
 	else
 		load_idt((const struct desc_ptr *)&idt_descr);
 }
+
+#ifdef CONFIG_X86_32
+static inline void set_user_cs(unsigned long base, unsigned long limit, int cpu)
+{
+	struct desc_struct d;
+
+	if (likely(limit))
+		limit = (limit - 1UL) >> PAGE_SHIFT;
+	pack_descriptor(&d, base, limit, 0xFB, 0xC);
+	write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_DEFAULT_USER_CS, &d, DESCTYPE_S);
+}
+#endif
+
 #endif /* _ASM_X86_DESC_H */
diff --git a/arch/x86/include/asm/desc_defs.h b/arch/x86/include/asm/desc_defs.h
index eb5deb4..ec19436 100644
--- a/arch/x86/include/asm/desc_defs.h
+++ b/arch/x86/include/asm/desc_defs.h
@@ -31,6 +31,12 @@ struct desc_struct {
 			unsigned base1: 8, type: 4, s: 1, dpl: 2, p: 1;
 			unsigned limit: 4, avl: 1, l: 1, d: 1, g: 1, base2: 8;
 		};
+		struct {
+			u16 offset_low;
+			u16 seg;
+			unsigned reserved: 8, type: 4, s: 1, dpl: 2, p: 1;
+			unsigned offset_high: 16;
+		} gate;
 	};
 } __attribute__((packed));
 
diff --git a/arch/x86/include/asm/div64.h b/arch/x86/include/asm/div64.h
index ced283a..ffe04cc 100644
--- a/arch/x86/include/asm/div64.h
+++ b/arch/x86/include/asm/div64.h
@@ -39,7 +39,7 @@
 	__mod;							\
 })
 
-static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
+static inline u64 __intentional_overflow(-1) div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
 {
 	union {
 		u64 v64;
diff --git a/arch/x86/include/asm/dma.h b/arch/x86/include/asm/dma.h
index fe884e1..46149ae 100644
--- a/arch/x86/include/asm/dma.h
+++ b/arch/x86/include/asm/dma.h
@@ -149,6 +149,7 @@
 #ifdef CONFIG_ISA_DMA_API
 extern spinlock_t  dma_spin_lock;
 
+static inline unsigned long claim_dma_lock(void) __acquires(&dma_spin_lock);
 static inline unsigned long claim_dma_lock(void)
 {
 	unsigned long flags;
@@ -156,6 +157,7 @@ static inline unsigned long claim_dma_lock(void)
 	return flags;
 }
 
+static inline void release_dma_lock(unsigned long flags) __releases(&dma_spin_lock);
 static inline void release_dma_lock(unsigned long flags)
 {
 	spin_unlock_irqrestore(&dma_spin_lock, flags);
diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h
index 53748c4..283147d 100644
--- a/arch/x86/include/asm/efi.h
+++ b/arch/x86/include/asm/efi.h
@@ -168,6 +168,11 @@ static inline bool efi_is_native(void)
 
 static inline bool efi_runtime_supported(void)
 {
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+	return false;
+#endif
+
 	if (efi_is_native())
 		return true;
 
diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
index 15340e3..f338653 100644
--- a/arch/x86/include/asm/elf.h
+++ b/arch/x86/include/asm/elf.h
@@ -75,9 +75,6 @@ typedef struct user_fxsr_struct elf_fpxregset_t;
 
 #include <asm/vdso.h>
 
-#ifdef CONFIG_X86_64
-extern unsigned int vdso64_enabled;
-#endif
 #if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION)
 extern unsigned int vdso32_enabled;
 #endif
@@ -250,7 +247,25 @@ extern int force_personality32;
    the loader.  We need to make sure that it is out of the way of the program
    that it will "exec", and that there is sufficient room for the brk.  */
 
+#ifdef CONFIG_PAX_SEGMEXEC
+#define ELF_ET_DYN_BASE		((current->mm->pax_flags & MF_PAX_SEGMEXEC) ? SEGMEXEC_TASK_SIZE/3*2 : TASK_SIZE/3*2)
+#else
 #define ELF_ET_DYN_BASE		(TASK_SIZE / 3 * 2)
+#endif
+
+#ifdef CONFIG_PAX_ASLR
+#ifdef CONFIG_X86_32
+#define PAX_ELF_ET_DYN_BASE	0x10000000UL
+
+#define PAX_DELTA_MMAP_LEN	(current->mm->pax_flags & MF_PAX_SEGMEXEC ? 15 : 16)
+#define PAX_DELTA_STACK_LEN	(current->mm->pax_flags & MF_PAX_SEGMEXEC ? 15 : 16)
+#else
+#define PAX_ELF_ET_DYN_BASE	0x400000UL
+
+#define PAX_DELTA_MMAP_LEN	((test_thread_flag(TIF_ADDR32)) ? 16 : TASK_SIZE_MAX_SHIFT - PAGE_SHIFT - 3)
+#define PAX_DELTA_STACK_LEN	((test_thread_flag(TIF_ADDR32)) ? 16 : TASK_SIZE_MAX_SHIFT - PAGE_SHIFT - 3)
+#endif
+#endif
 
 /* This yields a mask that user programs can use to figure out what
    instruction set this CPU supports.  This could be done in user space,
@@ -299,17 +314,13 @@ do {									\
 
 #define ARCH_DLINFO							\
 do {									\
-	if (vdso64_enabled)						\
-		NEW_AUX_ENT(AT_SYSINFO_EHDR,				\
-			    (unsigned long __force)current->mm->context.vdso); \
+	NEW_AUX_ENT(AT_SYSINFO_EHDR, current->mm->context.vdso);	\
 } while (0)
 
 /* As a historical oddity, the x32 and x86_64 vDSOs are controlled together. */
 #define ARCH_DLINFO_X32							\
 do {									\
-	if (vdso64_enabled)						\
-		NEW_AUX_ENT(AT_SYSINFO_EHDR,				\
-			    (unsigned long __force)current->mm->context.vdso); \
+	NEW_AUX_ENT(AT_SYSINFO_EHDR, current->mm->context.vdso);	\
 } while (0)
 
 #define AT_SYSINFO		32
@@ -324,10 +335,10 @@ else									\
 
 #endif /* !CONFIG_X86_32 */
 
-#define VDSO_CURRENT_BASE	((unsigned long)current->mm->context.vdso)
+#define VDSO_CURRENT_BASE	(current->mm->context.vdso)
 
 #define VDSO_ENTRY							\
-	((unsigned long)current->mm->context.vdso +			\
+	(current->mm->context.vdso +					\
 	 vdso_image_32.sym___kernel_vsyscall)
 
 struct linux_binprm;
diff --git a/arch/x86/include/asm/emergency-restart.h b/arch/x86/include/asm/emergency-restart.h
index 77a99ac..39ff7f5 100644
--- a/arch/x86/include/asm/emergency-restart.h
+++ b/arch/x86/include/asm/emergency-restart.h
@@ -1,6 +1,6 @@
 #ifndef _ASM_X86_EMERGENCY_RESTART_H
 #define _ASM_X86_EMERGENCY_RESTART_H
 
-extern void machine_emergency_restart(void);
+extern void machine_emergency_restart(void) __noreturn;
 
 #endif /* _ASM_X86_EMERGENCY_RESTART_H */
diff --git a/arch/x86/include/asm/fixmap.h b/arch/x86/include/asm/fixmap.h
index 8554f96..6c58add9 100644
--- a/arch/x86/include/asm/fixmap.h
+++ b/arch/x86/include/asm/fixmap.h
@@ -142,7 +142,7 @@ extern pte_t *kmap_pte;
 extern pte_t *pkmap_page_table;
 
 void __native_set_fixmap(enum fixed_addresses idx, pte_t pte);
-void native_set_fixmap(enum fixed_addresses idx,
+void native_set_fixmap(unsigned int idx,
 		       phys_addr_t phys, pgprot_t flags);
 
 #ifndef CONFIG_PARAVIRT
diff --git a/arch/x86/include/asm/floppy.h b/arch/x86/include/asm/floppy.h
index 1c7eefe..d0e4702 100644
--- a/arch/x86/include/asm/floppy.h
+++ b/arch/x86/include/asm/floppy.h
@@ -229,18 +229,18 @@ static struct fd_routine_l {
 	int (*_dma_setup)(char *addr, unsigned long size, int mode, int io);
 } fd_routine[] = {
 	{
-		request_dma,
-		free_dma,
-		get_dma_residue,
-		dma_mem_alloc,
-		hard_dma_setup
+		._request_dma = request_dma,
+		._free_dma = free_dma,
+		._get_dma_residue = get_dma_residue,
+		._dma_mem_alloc = dma_mem_alloc,
+		._dma_setup = hard_dma_setup
 	},
 	{
-		vdma_request_dma,
-		vdma_nop,
-		vdma_get_dma_residue,
-		vdma_mem_alloc,
-		vdma_dma_setup
+		._request_dma = vdma_request_dma,
+		._free_dma = vdma_nop,
+		._get_dma_residue = vdma_get_dma_residue,
+		._dma_mem_alloc = vdma_mem_alloc,
+		._dma_setup = vdma_dma_setup
 	}
 };
 
diff --git a/arch/x86/include/asm/fpu/internal.h b/arch/x86/include/asm/fpu/internal.h
index 31ac8e6..ece4ea7 100644
--- a/arch/x86/include/asm/fpu/internal.h
+++ b/arch/x86/include/asm/fpu/internal.h
@@ -101,8 +101,11 @@ extern void fpstate_sanitize_xstate(struct fpu *fpu);
 #define user_insn(insn, output, input...)				\
 ({									\
 	int err;							\
+	pax_open_userland();						\
 	asm volatile(ASM_STAC "\n"					\
-		     "1:" #insn "\n\t"					\
+		     "1:"						\
+		     __copyuser_seg					\
+		     #insn "\n\t"					\
 		     "2: " ASM_CLAC "\n"				\
 		     ".section .fixup,\"ax\"\n"				\
 		     "3:  movl $-1,%[err]\n"				\
@@ -111,6 +114,7 @@ extern void fpstate_sanitize_xstate(struct fpu *fpu);
 		     _ASM_EXTABLE(1b, 3b)				\
 		     : [err] "=r" (err), output				\
 		     : "0"(0), input);					\
+	pax_close_userland();						\
 	err;								\
 })
 
@@ -190,9 +194,9 @@ static inline int copy_user_to_fregs(struct fregs_state __user *fx)
 static inline void copy_fxregs_to_kernel(struct fpu *fpu)
 {
 	if (config_enabled(CONFIG_X86_32))
-		asm volatile( "fxsave %[fx]" : [fx] "=m" (fpu->state.fxsave));
+		asm volatile( "fxsave %[fx]" : [fx] "=m" (fpu->state->fxsave));
 	else if (config_enabled(CONFIG_AS_FXSAVEQ))
-		asm volatile("fxsaveq %[fx]" : [fx] "=m" (fpu->state.fxsave));
+		asm volatile("fxsaveq %[fx]" : [fx] "=m" (fpu->state->fxsave));
 	else {
 		/* Using "rex64; fxsave %0" is broken because, if the memory
 		 * operand uses any extended registers for addressing, a second
@@ -209,15 +213,15 @@ static inline void copy_fxregs_to_kernel(struct fpu *fpu)
 		 * an extended register is needed for addressing (fix submitted
 		 * to mainline 2005-11-21).
 		 *
-		 *  asm volatile("rex64/fxsave %0" : "=m" (fpu->state.fxsave));
+		 *  asm volatile("rex64/fxsave %0" : "=m" (fpu->state->fxsave));
 		 *
 		 * This, however, we can work around by forcing the compiler to
 		 * select an addressing mode that doesn't require extended
 		 * registers.
 		 */
 		asm volatile( "rex64/fxsave (%[fx])"
-			     : "=m" (fpu->state.fxsave)
-			     : [fx] "R" (&fpu->state.fxsave));
+			     : "=m" (fpu->state->fxsave)
+			     : [fx] "R" (&fpu->state->fxsave));
 	}
 }
 
@@ -389,9 +393,11 @@ static inline int copy_xregs_to_user(struct xregs_state __user *buf)
 	if (unlikely(err))
 		return -EFAULT;
 
+	pax_open_userland();
 	stac();
-	XSTATE_OP(XSAVE, buf, -1, -1, err);
+	XSTATE_OP(__copyuser_seg XSAVE, buf, -1, -1, err);
 	clac();
+	pax_close_userland();
 
 	return err;
 }
@@ -401,14 +407,16 @@ static inline int copy_xregs_to_user(struct xregs_state __user *buf)
  */
 static inline int copy_user_to_xregs(struct xregs_state __user *buf, u64 mask)
 {
-	struct xregs_state *xstate = ((__force struct xregs_state *)buf);
+	struct xregs_state *xstate = ((__force_kernel struct xregs_state *)buf);
 	u32 lmask = mask;
 	u32 hmask = mask >> 32;
 	int err;
 
+	pax_open_userland();
 	stac();
-	XSTATE_OP(XRSTOR, xstate, lmask, hmask, err);
+	XSTATE_OP(__copyuser_seg XRSTOR, xstate, lmask, hmask, err);
 	clac();
+	pax_close_userland();
 
 	return err;
 }
@@ -426,7 +434,7 @@ static inline int copy_user_to_xregs(struct xregs_state __user *buf, u64 mask)
 static inline int copy_fpregs_to_fpstate(struct fpu *fpu)
 {
 	if (likely(use_xsave())) {
-		copy_xregs_to_kernel(&fpu->state.xsave);
+		copy_xregs_to_kernel(&fpu->state->xsave);
 		return 1;
 	}
 
@@ -439,7 +447,7 @@ static inline int copy_fpregs_to_fpstate(struct fpu *fpu)
 	 * Legacy FPU register saving, FNSAVE always clears FPU registers,
 	 * so we have to mark them inactive:
 	 */
-	asm volatile("fnsave %[fp]; fwait" : [fp] "=m" (fpu->state.fsave));
+	asm volatile("fnsave %[fp]; fwait" : [fp] "=m" (fpu->state->fsave));
 
 	return 0;
 }
@@ -468,7 +476,7 @@ static inline void copy_kernel_to_fpregs(union fpregs_state *fpstate)
 			"fnclex\n\t"
 			"emms\n\t"
 			"fildl %P[addr]"	/* set F?P to defined value */
-			: : [addr] "m" (fpstate));
+			: : [addr] "m" (cpu_tss[raw_smp_processor_id()].x86_tss.sp0));
 	}
 
 	__copy_kernel_to_fpregs(fpstate);
@@ -609,7 +617,7 @@ switch_fpu_prepare(struct fpu *old_fpu, struct fpu *new_fpu, int cpu)
 		if (fpu.preload) {
 			new_fpu->counter++;
 			__fpregs_activate(new_fpu);
-			prefetch(&new_fpu->state);
+			prefetch(new_fpu->state);
 		} else {
 			__fpregs_deactivate_hw();
 		}
@@ -621,7 +629,7 @@ switch_fpu_prepare(struct fpu *old_fpu, struct fpu *new_fpu, int cpu)
 			if (fpu_want_lazy_restore(new_fpu, cpu))
 				fpu.preload = 0;
 			else
-				prefetch(&new_fpu->state);
+				prefetch(new_fpu->state);
 			fpregs_activate(new_fpu);
 		}
 	}
@@ -641,7 +649,7 @@ switch_fpu_prepare(struct fpu *old_fpu, struct fpu *new_fpu, int cpu)
 static inline void switch_fpu_finish(struct fpu *new_fpu, fpu_switch_t fpu_switch)
 {
 	if (fpu_switch.preload)
-		copy_kernel_to_fpregs(&new_fpu->state);
+		copy_kernel_to_fpregs(new_fpu->state);
 }
 
 /*
diff --git a/arch/x86/include/asm/fpu/types.h b/arch/x86/include/asm/fpu/types.h
index 36b90bb..e5a32ad 100644
--- a/arch/x86/include/asm/fpu/types.h
+++ b/arch/x86/include/asm/fpu/types.h
@@ -269,6 +269,39 @@ union fpregs_state {
  */
 struct fpu {
 	/*
+	 * @state:
+	 *
+	 * In-memory copy of all FPU registers that we save/restore
+	 * over context switches. If the task is using the FPU then
+	 * the registers in the FPU are more recent than this state
+	 * copy. If the task context-switches away then they get
+	 * saved here and represent the FPU state.
+	 *
+	 * After context switches there may be a (short) time period
+	 * during which the in-FPU hardware registers are unchanged
+	 * and still perfectly match this state, if the tasks
+	 * scheduled afterwards are not using the FPU.
+	 *
+	 * This is the 'lazy restore' window of optimization, which
+	 * we track though 'fpu_fpregs_owner_ctx' and 'fpu->last_cpu'.
+	 *
+	 * We detect whether a subsequent task uses the FPU via setting
+	 * CR0::TS to 1, which causes any FPU use to raise a #NM fault.
+	 *
+	 * During this window, if the task gets scheduled again, we
+	 * might be able to skip having to do a restore from this
+	 * memory buffer to the hardware registers - at the cost of
+	 * incurring the overhead of #NM fault traps.
+	 *
+	 * Note that on modern CPUs that support the XSAVEOPT (or other
+	 * optimized XSAVE instructions), we don't use #NM traps anymore,
+	 * as the hardware can track whether FPU registers need saving
+	 * or not. On such CPUs we activate the non-lazy ('eagerfpu')
+	 * logic, which unconditionally saves/restores all FPU state
+	 * across context switches. (if FPU state exists.)
+	 */
+	union fpregs_state		*state;
+	/*
 	 * @last_cpu:
 	 *
 	 * Records the last CPU on which this context was loaded into
@@ -325,43 +358,6 @@ struct fpu {
 	 * deal with bursty apps that only use the FPU for a short time:
 	 */
 	unsigned char			counter;
-	/*
-	 * @state:
-	 *
-	 * In-memory copy of all FPU registers that we save/restore
-	 * over context switches. If the task is using the FPU then
-	 * the registers in the FPU are more recent than this state
-	 * copy. If the task context-switches away then they get
-	 * saved here and represent the FPU state.
-	 *
-	 * After context switches there may be a (short) time period
-	 * during which the in-FPU hardware registers are unchanged
-	 * and still perfectly match this state, if the tasks
-	 * scheduled afterwards are not using the FPU.
-	 *
-	 * This is the 'lazy restore' window of optimization, which
-	 * we track though 'fpu_fpregs_owner_ctx' and 'fpu->last_cpu'.
-	 *
-	 * We detect whether a subsequent task uses the FPU via setting
-	 * CR0::TS to 1, which causes any FPU use to raise a #NM fault.
-	 *
-	 * During this window, if the task gets scheduled again, we
-	 * might be able to skip having to do a restore from this
-	 * memory buffer to the hardware registers - at the cost of
-	 * incurring the overhead of #NM fault traps.
-	 *
-	 * Note that on modern CPUs that support the XSAVEOPT (or other
-	 * optimized XSAVE instructions), we don't use #NM traps anymore,
-	 * as the hardware can track whether FPU registers need saving
-	 * or not. On such CPUs we activate the non-lazy ('eagerfpu')
-	 * logic, which unconditionally saves/restores all FPU state
-	 * across context switches. (if FPU state exists.)
-	 */
-	union fpregs_state		state;
-	/*
-	 * WARNING: 'state' is dynamically-sized.  Do not put
-	 * anything after it here.
-	 */
 };
 
 #endif /* _ASM_X86_FPU_H */
diff --git a/arch/x86/include/asm/futex.h b/arch/x86/include/asm/futex.h
index b4c1f54..e290c08 100644
--- a/arch/x86/include/asm/futex.h
+++ b/arch/x86/include/asm/futex.h
@@ -12,6 +12,7 @@
 #include <asm/smap.h>
 
 #define __futex_atomic_op1(insn, ret, oldval, uaddr, oparg)	\
+	typecheck(u32 __user *, uaddr);				\
 	asm volatile("\t" ASM_STAC "\n"				\
 		     "1:\t" insn "\n"				\
 		     "2:\t" ASM_CLAC "\n"			\
@@ -20,15 +21,16 @@
 		     "\tjmp\t2b\n"				\
 		     "\t.previous\n"				\
 		     _ASM_EXTABLE(1b, 3b)			\
-		     : "=r" (oldval), "=r" (ret), "+m" (*uaddr)	\
+		     : "=r" (oldval), "=r" (ret), "+m" (*(u32 __user *)____m(uaddr))	\
 		     : "i" (-EFAULT), "0" (oparg), "1" (0))
 
 #define __futex_atomic_op2(insn, ret, oldval, uaddr, oparg)	\
+	typecheck(u32 __user *, uaddr);				\
 	asm volatile("\t" ASM_STAC "\n"				\
 		     "1:\tmovl	%2, %0\n"			\
 		     "\tmovl\t%0, %3\n"				\
 		     "\t" insn "\n"				\
-		     "2:\t" LOCK_PREFIX "cmpxchgl %3, %2\n"	\
+		     "2:\t" LOCK_PREFIX __copyuser_seg"cmpxchgl %3, %2\n"	\
 		     "\tjnz\t1b\n"				\
 		     "3:\t" ASM_CLAC "\n"			\
 		     "\t.section .fixup,\"ax\"\n"		\
@@ -38,7 +40,7 @@
 		     _ASM_EXTABLE(1b, 4b)			\
 		     _ASM_EXTABLE(2b, 4b)			\
 		     : "=&a" (oldval), "=&r" (ret),		\
-		       "+m" (*uaddr), "=&r" (tem)		\
+		       "+m" (*(u32 __user *)____m(uaddr)), "=&r" (tem)	\
 		     : "r" (oparg), "i" (-EFAULT), "1" (0))
 
 static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
@@ -57,12 +59,13 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_disable();
 
+	pax_open_userland();
 	switch (op) {
 	case FUTEX_OP_SET:
-		__futex_atomic_op1("xchgl %0, %2", ret, oldval, uaddr, oparg);
+		__futex_atomic_op1(__copyuser_seg"xchgl %0, %2", ret, oldval, uaddr, oparg);
 		break;
 	case FUTEX_OP_ADD:
-		__futex_atomic_op1(LOCK_PREFIX "xaddl %0, %2", ret, oldval,
+		__futex_atomic_op1(LOCK_PREFIX __copyuser_seg"xaddl %0, %2", ret, oldval,
 				   uaddr, oparg);
 		break;
 	case FUTEX_OP_OR:
@@ -77,6 +80,7 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 	default:
 		ret = -ENOSYS;
 	}
+	pax_close_userland();
 
 	pagefault_enable();
 
diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h
index b90e105..30a5950 100644
--- a/arch/x86/include/asm/hw_irq.h
+++ b/arch/x86/include/asm/hw_irq.h
@@ -164,8 +164,8 @@ static inline void unlock_vector_lock(void) {}
 #endif	/* CONFIG_X86_LOCAL_APIC */
 
 /* Statistics */
-extern atomic_t irq_err_count;
-extern atomic_t irq_mis_count;
+extern atomic_unchecked_t irq_err_count;
+extern atomic_unchecked_t irq_mis_count;
 
 extern void elcr_set_level_irq(unsigned int irq);
 
diff --git a/arch/x86/include/asm/hypervisor.h b/arch/x86/include/asm/hypervisor.h
index 055ea99..7dabb68 100644
--- a/arch/x86/include/asm/hypervisor.h
+++ b/arch/x86/include/asm/hypervisor.h
@@ -43,7 +43,7 @@ struct hypervisor_x86 {
 
 	/* X2APIC detection (run once per boot) */
 	bool		(*x2apic_available)(void);
-};
+} __do_const;
 
 extern const struct hypervisor_x86 *x86_hyper;
 
diff --git a/arch/x86/include/asm/i8259.h b/arch/x86/include/asm/i8259.h
index 39bcefc..272d904 100644
--- a/arch/x86/include/asm/i8259.h
+++ b/arch/x86/include/asm/i8259.h
@@ -63,7 +63,7 @@ struct legacy_pic {
 	int (*probe)(void);
 	int (*irq_pending)(unsigned int irq);
 	void (*make_irq)(unsigned int irq);
-};
+} __do_const;
 
 extern struct legacy_pic *legacy_pic;
 extern struct legacy_pic null_legacy_pic;
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
index de25aad..dc04476 100644
--- a/arch/x86/include/asm/io.h
+++ b/arch/x86/include/asm/io.h
@@ -42,6 +42,7 @@
 #include <asm/page.h>
 #include <asm/early_ioremap.h>
 #include <asm/pgtable_types.h>
+#include <asm/processor.h>
 
 #define build_mmio_read(name, size, type, reg, barrier) \
 static inline type name(const volatile void __iomem *addr) \
@@ -54,12 +55,12 @@ static inline void name(type val, volatile void __iomem *addr) \
 "m" (*(volatile type __force *)addr) barrier); }
 
 build_mmio_read(readb, "b", unsigned char, "=q", :"memory")
-build_mmio_read(readw, "w", unsigned short, "=r", :"memory")
-build_mmio_read(readl, "l", unsigned int, "=r", :"memory")
+build_mmio_read(__intentional_overflow(-1) readw, "w", unsigned short, "=r", :"memory")
+build_mmio_read(__intentional_overflow(-1) readl, "l", unsigned int, "=r", :"memory")
 
 build_mmio_read(__readb, "b", unsigned char, "=q", )
-build_mmio_read(__readw, "w", unsigned short, "=r", )
-build_mmio_read(__readl, "l", unsigned int, "=r", )
+build_mmio_read(__intentional_overflow(-1) __readw, "w", unsigned short, "=r", )
+build_mmio_read(__intentional_overflow(-1) __readl, "l", unsigned int, "=r", )
 
 build_mmio_write(writeb, "b", unsigned char, "q", :"memory")
 build_mmio_write(writew, "w", unsigned short, "r", :"memory")
@@ -115,7 +116,7 @@ build_mmio_write(writeq, "q", unsigned long, "r", :"memory")
  *	this function
  */
 
-static inline phys_addr_t virt_to_phys(volatile void *address)
+static inline phys_addr_t __intentional_overflow(-1) virt_to_phys(volatile void *address)
 {
 	return __pa(address);
 }
@@ -194,7 +195,7 @@ static inline void __iomem *ioremap(resource_size_t offset, unsigned long size)
 	return ioremap_nocache(offset, size);
 }
 
-extern void iounmap(volatile void __iomem *addr);
+extern void iounmap(const volatile void __iomem *addr);
 
 extern void set_iounmap_nonlazy(void);
 
@@ -202,6 +203,17 @@ extern void set_iounmap_nonlazy(void);
 
 #include <asm-generic/iomap.h>
 
+#define ARCH_HAS_VALID_PHYS_ADDR_RANGE
+static inline int valid_phys_addr_range(unsigned long addr, size_t count)
+{
+	return ((addr + count + PAGE_SIZE - 1) >> PAGE_SHIFT) < (1ULL << (boot_cpu_data.x86_phys_bits - PAGE_SHIFT)) ? 1 : 0;
+}
+
+static inline int valid_mmap_phys_addr_range(unsigned long pfn, size_t count)
+{
+	return (pfn + (count >> PAGE_SHIFT)) < (1ULL << (boot_cpu_data.x86_phys_bits - PAGE_SHIFT)) ? 1 : 0;
+}
+
 /*
  * Convert a virtual cached pointer to an uncached pointer
  */
diff --git a/arch/x86/include/asm/irqflags.h b/arch/x86/include/asm/irqflags.h
index b77f5ed..a2f791e 100644
--- a/arch/x86/include/asm/irqflags.h
+++ b/arch/x86/include/asm/irqflags.h
@@ -137,6 +137,11 @@ static inline notrace unsigned long arch_local_irq_save(void)
 	swapgs;					\
 	sysretl
 
+#define GET_CR0_INTO_RDI		mov %cr0, %rdi
+#define SET_RDI_INTO_CR0		mov %rdi, %cr0
+#define GET_CR3_INTO_RDI		mov %cr3, %rdi
+#define SET_RDI_INTO_CR3		mov %rdi, %cr3
+
 #else
 #define INTERRUPT_RETURN		iret
 #define ENABLE_INTERRUPTS_SYSEXIT	sti; sysexit
diff --git a/arch/x86/include/asm/kprobes.h b/arch/x86/include/asm/kprobes.h
index 4421b5d..8543006 100644
--- a/arch/x86/include/asm/kprobes.h
+++ b/arch/x86/include/asm/kprobes.h
@@ -37,13 +37,8 @@ typedef u8 kprobe_opcode_t;
 #define RELATIVEJUMP_SIZE 5
 #define RELATIVECALL_OPCODE 0xe8
 #define RELATIVE_ADDR_SIZE 4
-#define MAX_STACK_SIZE 64
-#define MIN_STACK_SIZE(ADDR)					       \
-	(((MAX_STACK_SIZE) < (((unsigned long)current_thread_info()) + \
-			      THREAD_SIZE - (unsigned long)(ADDR)))    \
-	 ? (MAX_STACK_SIZE)					       \
-	 : (((unsigned long)current_thread_info()) +		       \
-	    THREAD_SIZE - (unsigned long)(ADDR)))
+#define MAX_STACK_SIZE 64UL
+#define MIN_STACK_SIZE(ADDR)	min(MAX_STACK_SIZE, current->thread.sp0 - (unsigned long)(ADDR))
 
 #define flush_insn_slot(p)	do { } while (0)
 
diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h
index e9cd7be..0f3574f 100644
--- a/arch/x86/include/asm/kvm_emulate.h
+++ b/arch/x86/include/asm/kvm_emulate.h
@@ -279,6 +279,8 @@ enum x86emul_mode {
 #define X86EMUL_SMM_MASK             (1 << 6)
 #define X86EMUL_SMM_INSIDE_NMI_MASK  (1 << 7)
 
+struct fastop;
+
 struct x86_emulate_ctxt {
 	const struct x86_emulate_ops *ops;
 
@@ -311,7 +313,10 @@ struct x86_emulate_ctxt {
 	struct operand src;
 	struct operand src2;
 	struct operand dst;
-	int (*execute)(struct x86_emulate_ctxt *ctxt);
+	union {
+		int (*execute)(struct x86_emulate_ctxt *ctxt);
+		void (*fastop)(struct fastop *fake);
+	} u;
 	int (*check_perm)(struct x86_emulate_ctxt *ctxt);
 	/*
 	 * The following six fields are cleared together,
diff --git a/arch/x86/include/asm/local.h b/arch/x86/include/asm/local.h
index 4ad6560..75c7bdd 100644
--- a/arch/x86/include/asm/local.h
+++ b/arch/x86/include/asm/local.h
@@ -10,33 +10,97 @@ typedef struct {
 	atomic_long_t a;
 } local_t;
 
+typedef struct {
+	atomic_long_unchecked_t a;
+} local_unchecked_t;
+
 #define LOCAL_INIT(i)	{ ATOMIC_LONG_INIT(i) }
 
 #define local_read(l)	atomic_long_read(&(l)->a)
+#define local_read_unchecked(l)	atomic_long_read_unchecked(&(l)->a)
 #define local_set(l, i)	atomic_long_set(&(l)->a, (i))
+#define local_set_unchecked(l, i)	atomic_long_set_unchecked(&(l)->a, (i))
 
 static inline void local_inc(local_t *l)
 {
-	asm volatile(_ASM_INC "%0"
+	asm volatile(_ASM_INC "%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     _ASM_DEC "%0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     : "+m" (l->a.counter));
+}
+
+static inline void local_inc_unchecked(local_unchecked_t *l)
+{
+	asm volatile(_ASM_INC "%0\n"
 		     : "+m" (l->a.counter));
 }
 
 static inline void local_dec(local_t *l)
 {
-	asm volatile(_ASM_DEC "%0"
+	asm volatile(_ASM_DEC "%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     _ASM_INC "%0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     : "+m" (l->a.counter));
+}
+
+static inline void local_dec_unchecked(local_unchecked_t *l)
+{
+	asm volatile(_ASM_DEC "%0\n"
 		     : "+m" (l->a.counter));
 }
 
 static inline void local_add(long i, local_t *l)
 {
-	asm volatile(_ASM_ADD "%1,%0"
+	asm volatile(_ASM_ADD "%1,%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     _ASM_SUB "%1,%0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     : "+m" (l->a.counter)
+		     : "ir" (i));
+}
+
+static inline void local_add_unchecked(long i, local_unchecked_t *l)
+{
+	asm volatile(_ASM_ADD "%1,%0\n"
 		     : "+m" (l->a.counter)
 		     : "ir" (i));
 }
 
 static inline void local_sub(long i, local_t *l)
 {
-	asm volatile(_ASM_SUB "%1,%0"
+	asm volatile(_ASM_SUB "%1,%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     _ASM_ADD "%1,%0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     : "+m" (l->a.counter)
+		     : "ir" (i));
+}
+
+static inline void local_sub_unchecked(long i, local_unchecked_t *l)
+{
+	asm volatile(_ASM_SUB "%1,%0\n"
 		     : "+m" (l->a.counter)
 		     : "ir" (i));
 }
@@ -52,7 +116,7 @@ static inline void local_sub(long i, local_t *l)
  */
 static inline int local_sub_and_test(long i, local_t *l)
 {
-	GEN_BINARY_RMWcc(_ASM_SUB, l->a.counter, "er", i, "%0", "e");
+	GEN_BINARY_RMWcc(_ASM_SUB, _ASM_ADD, l->a.counter, "er", i, "%0", "e");
 }
 
 /**
@@ -65,7 +129,7 @@ static inline int local_sub_and_test(long i, local_t *l)
  */
 static inline int local_dec_and_test(local_t *l)
 {
-	GEN_UNARY_RMWcc(_ASM_DEC, l->a.counter, "%0", "e");
+	GEN_UNARY_RMWcc(_ASM_DEC, _ASM_INC, l->a.counter, "%0", "e");
 }
 
 /**
@@ -78,7 +142,7 @@ static inline int local_dec_and_test(local_t *l)
  */
 static inline int local_inc_and_test(local_t *l)
 {
-	GEN_UNARY_RMWcc(_ASM_INC, l->a.counter, "%0", "e");
+	GEN_UNARY_RMWcc(_ASM_INC, _ASM_DEC, l->a.counter, "%0", "e");
 }
 
 /**
@@ -92,7 +156,7 @@ static inline int local_inc_and_test(local_t *l)
  */
 static inline int local_add_negative(long i, local_t *l)
 {
-	GEN_BINARY_RMWcc(_ASM_ADD, l->a.counter, "er", i, "%0", "s");
+	GEN_BINARY_RMWcc(_ASM_ADD, _ASM_SUB, l->a.counter, "er", i, "%0", "s");
 }
 
 /**
@@ -105,6 +169,30 @@ static inline int local_add_negative(long i, local_t *l)
 static inline long local_add_return(long i, local_t *l)
 {
 	long __i = i;
+	asm volatile(_ASM_XADD "%0, %1\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     _ASM_MOV "%0,%1\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
+		     : "+r" (i), "+m" (l->a.counter)
+		     : : "memory");
+	return i + __i;
+}
+
+/**
+ * local_add_return_unchecked - add and return
+ * @i: integer value to add
+ * @l: pointer to type local_unchecked_t
+ *
+ * Atomically adds @i to @l and returns @i + @l
+ */
+static inline long local_add_return_unchecked(long i, local_unchecked_t *l)
+{
+	long __i = i;
 	asm volatile(_ASM_XADD "%0, %1;"
 		     : "+r" (i), "+m" (l->a.counter)
 		     : : "memory");
@@ -121,6 +209,8 @@ static inline long local_sub_return(long i, local_t *l)
 
 #define local_cmpxchg(l, o, n) \
 	(cmpxchg_local(&((l)->a.counter), (o), (n)))
+#define local_cmpxchg_unchecked(l, o, n) \
+	(cmpxchg_local(&((l)->a.counter), (o), (n)))
 /* Always has a lock prefix */
 #define local_xchg(l, n) (xchg(&((l)->a.counter), (n)))
 
diff --git a/arch/x86/include/asm/mman.h b/arch/x86/include/asm/mman.h
new file mode 100644
index 0000000..2bfd3ba
--- /dev/null
+++ b/arch/x86/include/asm/mman.h
@@ -0,0 +1,15 @@
+#ifndef _X86_MMAN_H
+#define _X86_MMAN_H
+
+#include <uapi/asm/mman.h>
+
+#ifdef __KERNEL__
+#ifndef __ASSEMBLY__
+#ifdef CONFIG_X86_32
+#define arch_mmap_check	i386_mmap_check
+int i386_mmap_check(unsigned long addr, unsigned long len, unsigned long flags);
+#endif
+#endif
+#endif
+
+#endif /* X86_MMAN_H */
diff --git a/arch/x86/include/asm/mmu.h b/arch/x86/include/asm/mmu.h
index 1ea0bae..25de747 100644
--- a/arch/x86/include/asm/mmu.h
+++ b/arch/x86/include/asm/mmu.h
@@ -19,7 +19,19 @@ typedef struct {
 #endif
 
 	struct mutex lock;
-	void __user *vdso;			/* vdso base address */
+	unsigned long vdso;			/* vdso base address */
+
+#ifdef CONFIG_X86_32
+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
+	unsigned long user_cs_base;
+	unsigned long user_cs_limit;
+
+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP)
+	cpumask_t cpu_user_cs_mask;
+#endif
+
+#endif
+#endif
 	const struct vdso_image *vdso_image;	/* vdso image in use */
 
 	atomic_t perf_rdpmc_allowed;	/* nonzero if rdpmc is allowed */
diff --git a/arch/x86/include/asm/mmu_context.h b/arch/x86/include/asm/mmu_context.h
index 8428002..89716a8 100644
--- a/arch/x86/include/asm/mmu_context.h
+++ b/arch/x86/include/asm/mmu_context.h
@@ -46,7 +46,7 @@ struct ldt_struct {
 	 * allocations, but it's not worth trying to optimize.
 	 */
 	struct desc_struct *entries;
-	int size;
+	unsigned int size;
 };
 
 /*
@@ -58,6 +58,23 @@ void destroy_context_ldt(struct mm_struct *mm);
 static inline int init_new_context_ldt(struct task_struct *tsk,
 				       struct mm_struct *mm)
 {
+	if (tsk == current) {
+		mm->context.vdso = 0;
+
+#ifdef CONFIG_X86_32
+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
+		mm->context.user_cs_base = 0UL;
+		mm->context.user_cs_limit = ~0UL;
+
+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP)
+		cpumask_clear(&mm->context.cpu_user_cs_mask);
+#endif
+
+#endif
+#endif
+
+	}
+
 	return 0;
 }
 static inline void destroy_context_ldt(struct mm_struct *mm) {}
@@ -98,6 +115,20 @@ static inline void load_mm_ldt(struct mm_struct *mm)
 
 static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
 {
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+	if (!(static_cpu_has(X86_FEATURE_PCIDUDEREF))) {
+		unsigned int i;
+		pgd_t *pgd;
+
+		pax_open_kernel();
+		pgd = get_cpu_pgd(smp_processor_id(), kernel);
+		for (i = USER_PGD_PTRS; i < 2 * USER_PGD_PTRS; ++i)
+			set_pgd_batched(pgd+i, native_make_pgd(0));
+		pax_close_kernel();
+	}
+#endif
+
 #ifdef CONFIG_SMP
 	if (this_cpu_read(cpu_tlbstate.state) == TLBSTATE_OK)
 		this_cpu_write(cpu_tlbstate.state, TLBSTATE_LAZY);
@@ -115,13 +146,64 @@ static inline void destroy_context(struct mm_struct *mm)
 	destroy_context_ldt(mm);
 }
 
+static inline void pax_switch_mm(struct mm_struct *next, unsigned int cpu)
+{
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+	pax_open_kernel();
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+	if (static_cpu_has(X86_FEATURE_PCIDUDEREF))
+		__clone_user_pgds(get_cpu_pgd(cpu, user), next->pgd);
+	else
+#endif
+
+		__clone_user_pgds(get_cpu_pgd(cpu, kernel), next->pgd);
+
+	__shadow_user_pgds(get_cpu_pgd(cpu, kernel) + USER_PGD_PTRS, next->pgd);
+
+	pax_close_kernel();
+
+	BUG_ON((__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL) != (read_cr3() & __PHYSICAL_MASK) && (__pa(get_cpu_pgd(cpu, user)) | PCID_USER) != (read_cr3() & __PHYSICAL_MASK));
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+	if (static_cpu_has(X86_FEATURE_PCIDUDEREF)) {
+		if (static_cpu_has(X86_FEATURE_INVPCID)) {
+			u64 descriptor[2];
+			descriptor[0] = PCID_USER;
+			asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_SINGLE_CONTEXT) : "memory");
+			if (!static_cpu_has(X86_FEATURE_STRONGUDEREF)) {
+				descriptor[0] = PCID_KERNEL;
+				asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_SINGLE_CONTEXT) : "memory");
+			}
+		} else {
+			write_cr3(__pa(get_cpu_pgd(cpu, user)) | PCID_USER);
+			if (static_cpu_has(X86_FEATURE_STRONGUDEREF))
+				write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL | PCID_NOFLUSH);
+			else
+				write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL);
+		}
+	} else
+#endif
+
+		load_cr3(get_cpu_pgd(cpu, kernel));
+#endif
+
+}
+
 static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
 			     struct task_struct *tsk)
 {
 	unsigned cpu = smp_processor_id();
+#if defined(CONFIG_X86_32) && defined(CONFIG_SMP) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC))
+	int tlbstate = TLBSTATE_OK;
+#endif
 
 	if (likely(prev != next)) {
 #ifdef CONFIG_SMP
+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC))
+		tlbstate = this_cpu_read(cpu_tlbstate.state);
+#endif
 		this_cpu_write(cpu_tlbstate.state, TLBSTATE_OK);
 		this_cpu_write(cpu_tlbstate.active_mm, next);
 #endif
@@ -140,7 +222,7 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
 		 * We need to prevent an outcome in which CPU 1 observes
 		 * the new PTE value and CPU 0 observes bit 1 clear in
 		 * mm_cpumask.  (If that occurs, then the IPI will never
-		 * be sent, and CPU 0's TLB will contain a stale entry.)
+		 * be sent, and CPU 1's TLB will contain a stale entry.)
 		 *
 		 * The bad outcome can occur if either CPU's load is
 		 * reordered before that CPU's store, so both CPUs must
@@ -155,7 +237,11 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
 		 * ordering guarantee we need.
 		 *
 		 */
+#ifdef CONFIG_PAX_PER_CPU_PGD
+		pax_switch_mm(next, cpu);
+#else
 		load_cr3(next->pgd);
+#endif
 
 		trace_tlb_flush(TLB_FLUSH_ON_TASK_SWITCH, TLB_FLUSH_ALL);
 
@@ -181,9 +267,31 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
 		if (unlikely(prev->context.ldt != next->context.ldt))
 			load_mm_ldt(next);
 #endif
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP)
+		if (!(__supported_pte_mask & _PAGE_NX)) {
+			smp_mb__before_atomic();
+			cpumask_clear_cpu(cpu, &prev->context.cpu_user_cs_mask);
+			smp_mb__after_atomic();
+			cpumask_set_cpu(cpu, &next->context.cpu_user_cs_mask);
+		}
+#endif
+
+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC))
+		if (unlikely(prev->context.user_cs_base != next->context.user_cs_base ||
+			     prev->context.user_cs_limit != next->context.user_cs_limit))
+			set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu);
+#ifdef CONFIG_SMP
+		else if (unlikely(tlbstate != TLBSTATE_OK))
+			set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu);
+#endif
+#endif
+
 	}
+	else {
+		pax_switch_mm(next, cpu);
+
 #ifdef CONFIG_SMP
-	  else {
 		this_cpu_write(cpu_tlbstate.state, TLBSTATE_OK);
 		BUG_ON(this_cpu_read(cpu_tlbstate.active_mm) != next);
 
@@ -204,13 +312,30 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
 			 * As above, load_cr3() is serializing and orders TLB
 			 * fills with respect to the mm_cpumask write.
 			 */
+
+#ifndef CONFIG_PAX_PER_CPU_PGD
 			load_cr3(next->pgd);
 			trace_tlb_flush(TLB_FLUSH_ON_TASK_SWITCH, TLB_FLUSH_ALL);
+#endif
+
 			load_mm_cr4(next);
 			load_mm_ldt(next);
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
+			if (!(__supported_pte_mask & _PAGE_NX))
+				cpumask_set_cpu(cpu, &next->context.cpu_user_cs_mask);
+#endif
+
+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC))
+#ifdef CONFIG_PAX_PAGEEXEC
+			if (!((next->pax_flags & MF_PAX_PAGEEXEC) && (__supported_pte_mask & _PAGE_NX)))
+#endif
+				set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu);
+#endif
+
 		}
+#endif
 	}
-#endif
 }
 
 #define activate_mm(prev, next)			\
diff --git a/arch/x86/include/asm/module.h b/arch/x86/include/asm/module.h
index e3b7819..ba128ec 100644
--- a/arch/x86/include/asm/module.h
+++ b/arch/x86/include/asm/module.h
@@ -5,6 +5,7 @@
 
 #ifdef CONFIG_X86_64
 /* X86_64 does not define MODULE_PROC_FAMILY */
+#define MODULE_PROC_FAMILY ""
 #elif defined CONFIG_M486
 #define MODULE_PROC_FAMILY "486 "
 #elif defined CONFIG_M586
@@ -57,8 +58,26 @@
 #error unknown processor family
 #endif
 
-#ifdef CONFIG_X86_32
-# define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY
+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_BTS
+#define MODULE_PAX_KERNEXEC "KERNEXEC_BTS "
+#elif defined(CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR)
+#define MODULE_PAX_KERNEXEC "KERNEXEC_OR "
+#else
+#define MODULE_PAX_KERNEXEC ""
 #endif
 
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+#define MODULE_PAX_UDEREF "UDEREF "
+#else
+#define MODULE_PAX_UDEREF ""
+#endif
+
+#ifdef CONFIG_PAX_RAP
+#define MODULE_PAX_RAP "RAP "
+#else
+#define MODULE_PAX_RAP ""
+#endif
+
+#define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY MODULE_PAX_KERNEXEC MODULE_PAX_UDEREF MODULE_PAX_RAP
+
 #endif /* _ASM_X86_MODULE_H */
diff --git a/arch/x86/include/asm/nmi.h b/arch/x86/include/asm/nmi.h
index 5f2fc44..106caa6 100644
--- a/arch/x86/include/asm/nmi.h
+++ b/arch/x86/include/asm/nmi.h
@@ -36,26 +36,35 @@ enum {
 
 typedef int (*nmi_handler_t)(unsigned int, struct pt_regs *);
 
+struct nmiaction;
+
+struct nmiwork {
+	const struct nmiaction	*action;
+	u64			max_duration;
+	struct irq_work		irq_work;
+};
+
 struct nmiaction {
 	struct list_head	list;
 	nmi_handler_t		handler;
-	u64			max_duration;
-	struct irq_work		irq_work;
 	unsigned long		flags;
 	const char		*name;
-};
+	struct nmiwork		*work;
+} __do_const;
 
 #define register_nmi_handler(t, fn, fg, n, init...)	\
 ({							\
-	static struct nmiaction init fn##_na = {	\
+	static struct nmiwork fn##_nw;			\
+	static const struct nmiaction init fn##_na = {	\
 		.handler = (fn),			\
 		.name = (n),				\
 		.flags = (fg),				\
+		.work = &fn##_nw,			\
 	};						\
 	__register_nmi_handler((t), &fn##_na);		\
 })
 
-int __register_nmi_handler(unsigned int, struct nmiaction *);
+int __register_nmi_handler(unsigned int, const struct nmiaction *);
 
 void unregister_nmi_handler(unsigned int, const char *);
 
diff --git a/arch/x86/include/asm/page.h b/arch/x86/include/asm/page.h
index 802dde3..9183e68 100644
--- a/arch/x86/include/asm/page.h
+++ b/arch/x86/include/asm/page.h
@@ -52,6 +52,7 @@ static inline void copy_user_page(void *to, void *from, unsigned long vaddr,
 	__phys_addr_symbol(__phys_reloc_hide((unsigned long)(x)))
 
 #define __va(x)			((void *)((unsigned long)(x)+PAGE_OFFSET))
+#define __early_va(x)		((void *)((unsigned long)(x)+__START_KERNEL_map - phys_base))
 
 #define __boot_va(x)		__va(x)
 #define __boot_pa(x)		__pa(x)
@@ -60,11 +61,21 @@ static inline void copy_user_page(void *to, void *from, unsigned long vaddr,
  * virt_to_page(kaddr) returns a valid pointer if and only if
  * virt_addr_valid(kaddr) returns true.
  */
-#define virt_to_page(kaddr)	pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
 #define pfn_to_kaddr(pfn)      __va((pfn) << PAGE_SHIFT)
 extern bool __virt_addr_valid(unsigned long kaddr);
 #define virt_addr_valid(kaddr)	__virt_addr_valid((unsigned long) (kaddr))
 
+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
+#define virt_to_page(kaddr)	\
+	({ \
+		const void *__kaddr = (const void *)(kaddr); \
+		BUG_ON(!virt_addr_valid(__kaddr)); \
+		pfn_to_page(__pa(__kaddr) >> PAGE_SHIFT); \
+	})
+#else
+#define virt_to_page(kaddr)	pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
+#endif
+
 #endif	/* __ASSEMBLY__ */
 
 #include <asm-generic/memory_model.h>
diff --git a/arch/x86/include/asm/page_32.h b/arch/x86/include/asm/page_32.h
index 904f528..b4d0d24 100644
--- a/arch/x86/include/asm/page_32.h
+++ b/arch/x86/include/asm/page_32.h
@@ -7,11 +7,17 @@
 
 #define __phys_addr_nodebug(x)	((x) - PAGE_OFFSET)
 #ifdef CONFIG_DEBUG_VIRTUAL
-extern unsigned long __phys_addr(unsigned long);
+extern unsigned long __intentional_overflow(-1) __phys_addr(unsigned long);
 #else
-#define __phys_addr(x)		__phys_addr_nodebug(x)
+static inline unsigned long __intentional_overflow(-1) __phys_addr(unsigned long x)
+{
+	return __phys_addr_nodebug(x);
+}
 #endif
-#define __phys_addr_symbol(x)	__phys_addr(x)
+static inline unsigned long __intentional_overflow(-1) __phys_addr_symbol(unsigned long x)
+{
+	return __phys_addr(x);
+}
 #define __phys_reloc_hide(x)	RELOC_HIDE((x), 0)
 
 #ifdef CONFIG_FLATMEM
diff --git a/arch/x86/include/asm/page_64.h b/arch/x86/include/asm/page_64.h
index b3bebf9..cb419e7 100644
--- a/arch/x86/include/asm/page_64.h
+++ b/arch/x86/include/asm/page_64.h
@@ -7,9 +7,9 @@
 
 /* duplicated to the one in bootmem.h */
 extern unsigned long max_pfn;
-extern unsigned long phys_base;
+extern const unsigned long phys_base;
 
-static inline unsigned long __phys_addr_nodebug(unsigned long x)
+static inline unsigned long __intentional_overflow(-1) __phys_addr_nodebug(unsigned long x)
 {
 	unsigned long y = x - __START_KERNEL_map;
 
@@ -20,12 +20,14 @@ static inline unsigned long __phys_addr_nodebug(unsigned long x)
 }
 
 #ifdef CONFIG_DEBUG_VIRTUAL
-extern unsigned long __phys_addr(unsigned long);
-extern unsigned long __phys_addr_symbol(unsigned long);
+extern unsigned long __intentional_overflow(-1) __phys_addr(unsigned long);
+extern unsigned long __intentional_overflow(-1) __phys_addr_symbol(unsigned long);
 #else
 #define __phys_addr(x)		__phys_addr_nodebug(x)
-#define __phys_addr_symbol(x) \
-	((unsigned long)(x) - __START_KERNEL_map + phys_base)
+static inline unsigned long __intentional_overflow(-1) __phys_addr_symbol(unsigned long x)
+{
+	return x - __START_KERNEL_map + phys_base;
+}
 #endif
 
 #define __phys_reloc_hide(x)	(x)
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index 601f1b8..1d2f5a1 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -511,7 +511,7 @@ static inline pmd_t __pmd(pmdval_t val)
 	return (pmd_t) { ret };
 }
 
-static inline pmdval_t pmd_val(pmd_t pmd)
+static inline __intentional_overflow(-1) pmdval_t pmd_val(pmd_t pmd)
 {
 	pmdval_t ret;
 
@@ -577,6 +577,18 @@ static inline void set_pgd(pgd_t *pgdp, pgd_t pgd)
 			    val);
 }
 
+static inline void set_pgd_batched(pgd_t *pgdp, pgd_t pgd)
+{
+	pgdval_t val = native_pgd_val(pgd);
+
+	if (sizeof(pgdval_t) > sizeof(long))
+		PVOP_VCALL3(pv_mmu_ops.set_pgd_batched, pgdp,
+			    val, (u64)val >> 32);
+	else
+		PVOP_VCALL2(pv_mmu_ops.set_pgd_batched, pgdp,
+			    val);
+}
+
 static inline void pgd_clear(pgd_t *pgdp)
 {
 	set_pgd(pgdp, __pgd(0));
@@ -661,6 +673,21 @@ static inline void __set_fixmap(unsigned /* enum fixed_addresses */ idx,
 	pv_mmu_ops.set_fixmap(idx, phys, flags);
 }
 
+#ifdef CONFIG_PAX_KERNEXEC
+static inline unsigned long pax_open_kernel(void)
+{
+	return PVOP_CALL0(unsigned long, pv_mmu_ops.pax_open_kernel);
+}
+
+static inline unsigned long pax_close_kernel(void)
+{
+	return PVOP_CALL0(unsigned long, pv_mmu_ops.pax_close_kernel);
+}
+#else
+static inline unsigned long pax_open_kernel(void) { return 0; }
+static inline unsigned long pax_close_kernel(void) { return 0; }
+#endif
+
 #if defined(CONFIG_SMP) && defined(CONFIG_PARAVIRT_SPINLOCKS)
 
 #ifdef CONFIG_QUEUED_SPINLOCKS
@@ -888,7 +915,7 @@ extern void default_banner(void);
 
 #define PARA_PATCH(struct, off)        ((PARAVIRT_PATCH_##struct + (off)) / 4)
 #define PARA_SITE(ptype, clobbers, ops) _PVSITE(ptype, clobbers, ops, .long, 4)
-#define PARA_INDIRECT(addr)	*%cs:addr
+#define PARA_INDIRECT(addr)	*%ss:addr
 #endif
 
 #define INTERRUPT_RETURN						\
@@ -946,6 +973,21 @@ extern void default_banner(void);
 	PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_usergs_sysret64),	\
 		  CLBR_NONE,						\
 		  jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_usergs_sysret64))
+
+#define GET_CR0_INTO_RDI				\
+	call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0);	\
+	mov %rax,%rdi
+
+#define SET_RDI_INTO_CR0				\
+	call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0)
+
+#define GET_CR3_INTO_RDI				\
+	call PARA_INDIRECT(pv_mmu_ops+PV_MMU_read_cr3);	\
+	mov %rax,%rdi
+
+#define SET_RDI_INTO_CR3				\
+	call PARA_INDIRECT(pv_mmu_ops+PV_MMU_write_cr3)
+
 #endif	/* CONFIG_X86_32 */
 
 #endif /* __ASSEMBLY__ */
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index e8c2326..4458a61 100644
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -89,7 +89,7 @@ struct pv_init_ops {
 	 */
 	unsigned (*patch)(u8 type, u16 clobber, void *insnbuf,
 			  unsigned long addr, unsigned len);
-};
+} __no_const __no_randomize_layout;
 
 
 struct pv_lazy_ops {
@@ -97,12 +97,12 @@ struct pv_lazy_ops {
 	void (*enter)(void);
 	void (*leave)(void);
 	void (*flush)(void);
-};
+} __no_randomize_layout;
 
 struct pv_time_ops {
 	unsigned long long (*sched_clock)(void);
 	unsigned long long (*steal_clock)(int cpu);
-};
+} __no_const __no_randomize_layout;
 
 struct pv_cpu_ops {
 	/* hooks for various privileged instructions */
@@ -178,7 +178,7 @@ struct pv_cpu_ops {
 
 	void (*start_context_switch)(struct task_struct *prev);
 	void (*end_context_switch)(struct task_struct *next);
-};
+} __no_const __no_randomize_layout;
 
 struct pv_irq_ops {
 	/*
@@ -201,7 +201,7 @@ struct pv_irq_ops {
 #ifdef CONFIG_X86_64
 	void (*adjust_exception_frame)(void);
 #endif
-};
+} __no_randomize_layout;
 
 struct pv_mmu_ops {
 	unsigned long (*read_cr2)(void);
@@ -285,6 +285,7 @@ struct pv_mmu_ops {
 	struct paravirt_callee_save make_pud;
 
 	void (*set_pgd)(pgd_t *pudp, pgd_t pgdval);
+	void (*set_pgd_batched)(pgd_t *pudp, pgd_t pgdval);
 #endif	/* CONFIG_PGTABLE_LEVELS == 4 */
 #endif	/* CONFIG_PGTABLE_LEVELS >= 3 */
 
@@ -296,7 +297,13 @@ struct pv_mmu_ops {
 	   an mfn.  We can tell which is which from the index. */
 	void (*set_fixmap)(unsigned /* enum fixed_addresses */ idx,
 			   phys_addr_t phys, pgprot_t flags);
-};
+
+#ifdef CONFIG_PAX_KERNEXEC
+	unsigned long (*pax_open_kernel)(void);
+	unsigned long (*pax_close_kernel)(void);
+#endif
+
+} __no_randomize_layout;
 
 struct arch_spinlock;
 #ifdef CONFIG_SMP
@@ -318,11 +325,14 @@ struct pv_lock_ops {
 	struct paravirt_callee_save lock_spinning;
 	void (*unlock_kick)(struct arch_spinlock *lock, __ticket_t ticket);
 #endif /* !CONFIG_QUEUED_SPINLOCKS */
-};
+} __no_randomize_layout;
 
 /* This contains all the paravirt structures: we get a convenient
  * number for each function using the offset which we use to indicate
- * what to patch. */
+ * what to patch.
+ * shouldn't be randomized due to the "NEAT TRICK" in paravirt.c
+ */
+
 struct paravirt_patch_template {
 	struct pv_init_ops pv_init_ops;
 	struct pv_time_ops pv_time_ops;
@@ -330,7 +340,7 @@ struct paravirt_patch_template {
 	struct pv_irq_ops pv_irq_ops;
 	struct pv_mmu_ops pv_mmu_ops;
 	struct pv_lock_ops pv_lock_ops;
-};
+} __no_randomize_layout;
 
 extern struct pv_info pv_info;
 extern struct pv_init_ops pv_init_ops;
diff --git a/arch/x86/include/asm/pgalloc.h b/arch/x86/include/asm/pgalloc.h
index bf7f8b5..ca5799d 100644
--- a/arch/x86/include/asm/pgalloc.h
+++ b/arch/x86/include/asm/pgalloc.h
@@ -63,6 +63,13 @@ static inline void pmd_populate_kernel(struct mm_struct *mm,
 				       pmd_t *pmd, pte_t *pte)
 {
 	paravirt_alloc_pte(mm, __pa(pte) >> PAGE_SHIFT);
+	set_pmd(pmd, __pmd(__pa(pte) | _KERNPG_TABLE));
+}
+
+static inline void pmd_populate_user(struct mm_struct *mm,
+				       pmd_t *pmd, pte_t *pte)
+{
+	paravirt_alloc_pte(mm, __pa(pte) >> PAGE_SHIFT);
 	set_pmd(pmd, __pmd(__pa(pte) | _PAGE_TABLE));
 }
 
@@ -108,12 +115,22 @@ static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd,
 
 #ifdef CONFIG_X86_PAE
 extern void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd);
+static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd)
+{
+	pud_populate(mm, pudp, pmd);
+}
 #else	/* !CONFIG_X86_PAE */
 static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
 {
 	paravirt_alloc_pmd(mm, __pa(pmd) >> PAGE_SHIFT);
 	set_pud(pud, __pud(_PAGE_TABLE | __pa(pmd)));
 }
+
+static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
+{
+	paravirt_alloc_pmd(mm, __pa(pmd) >> PAGE_SHIFT);
+	set_pud(pud, __pud(_KERNPG_TABLE | __pa(pmd)));
+}
 #endif	/* CONFIG_X86_PAE */
 
 #if CONFIG_PGTABLE_LEVELS > 3
@@ -123,6 +140,12 @@ static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
 	set_pgd(pgd, __pgd(_PAGE_TABLE | __pa(pud)));
 }
 
+static inline void pgd_populate_kernel(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
+{
+	paravirt_alloc_pud(mm, __pa(pud) >> PAGE_SHIFT);
+	set_pgd(pgd, __pgd(_KERNPG_TABLE | __pa(pud)));
+}
+
 static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
 {
 	return (pud_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
diff --git a/arch/x86/include/asm/pgtable-2level.h b/arch/x86/include/asm/pgtable-2level.h
index fd74a11..35fd5af 100644
--- a/arch/x86/include/asm/pgtable-2level.h
+++ b/arch/x86/include/asm/pgtable-2level.h
@@ -18,7 +18,9 @@ static inline void native_set_pte(pte_t *ptep , pte_t pte)
 
 static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
 {
+	pax_open_kernel();
 	*pmdp = pmd;
+	pax_close_kernel();
 }
 
 static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
diff --git a/arch/x86/include/asm/pgtable-3level.h b/arch/x86/include/asm/pgtable-3level.h
index cdaa58c..ae30f0d 100644
--- a/arch/x86/include/asm/pgtable-3level.h
+++ b/arch/x86/include/asm/pgtable-3level.h
@@ -92,12 +92,16 @@ static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
 
 static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
 {
+	pax_open_kernel();
 	set_64bit((unsigned long long *)(pmdp), native_pmd_val(pmd));
+	pax_close_kernel();
 }
 
 static inline void native_set_pud(pud_t *pudp, pud_t pud)
 {
+	pax_open_kernel();
 	set_64bit((unsigned long long *)(pudp), native_pud_val(pud));
+	pax_close_kernel();
 }
 
 /*
@@ -116,9 +120,12 @@ static inline void native_pte_clear(struct mm_struct *mm, unsigned long addr,
 static inline void native_pmd_clear(pmd_t *pmd)
 {
 	u32 *tmp = (u32 *)pmd;
+
+	pax_open_kernel();
 	*tmp = 0;
 	smp_wmb();
 	*(tmp + 1) = 0;
+	pax_close_kernel();
 }
 
 static inline void pud_clear(pud_t *pudp)
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index 97f3242..2603a59 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -54,6 +54,7 @@ extern struct mm_struct *pgd_page_get_mm(struct page *page);
 
 #ifndef __PAGETABLE_PUD_FOLDED
 #define set_pgd(pgdp, pgd)		native_set_pgd(pgdp, pgd)
+#define set_pgd_batched(pgdp, pgd)	native_set_pgd_batched(pgdp, pgd)
 #define pgd_clear(pgd)			native_pgd_clear(pgd)
 #endif
 
@@ -88,12 +89,53 @@ extern struct mm_struct *pgd_page_get_mm(struct page *page);
 
 #define arch_end_context_switch(prev)	do {} while(0)
 
+#define pax_open_kernel()	native_pax_open_kernel()
+#define pax_close_kernel()	native_pax_close_kernel()
 #endif	/* CONFIG_PARAVIRT */
 
+#define  __HAVE_ARCH_PAX_OPEN_KERNEL
+#define  __HAVE_ARCH_PAX_CLOSE_KERNEL
+
+#ifdef CONFIG_PAX_KERNEXEC
+static inline unsigned long native_pax_open_kernel(void)
+{
+	unsigned long cr0;
+
+	preempt_disable();
+	barrier();
+	cr0 = read_cr0() ^ X86_CR0_WP;
+	BUG_ON(cr0 & X86_CR0_WP);
+	write_cr0(cr0);
+	barrier();
+	return cr0 ^ X86_CR0_WP;
+}
+
+static inline unsigned long native_pax_close_kernel(void)
+{
+	unsigned long cr0;
+
+	barrier();
+	cr0 = read_cr0() ^ X86_CR0_WP;
+	BUG_ON(!(cr0 & X86_CR0_WP));
+	write_cr0(cr0);
+	barrier();
+	preempt_enable_no_resched();
+	return cr0 ^ X86_CR0_WP;
+}
+#else
+static inline unsigned long native_pax_open_kernel(void) { return 0; }
+static inline unsigned long native_pax_close_kernel(void) { return 0; }
+#endif
+
 /*
  * The following only work if pte_present() is true.
  * Undefined behaviour if not..
  */
+static inline int pte_user(pte_t pte)
+{
+	return pte_val(pte) & _PAGE_USER;
+}
+
 static inline int pte_dirty(pte_t pte)
 {
 	return pte_flags(pte) & _PAGE_DIRTY;
@@ -168,6 +210,11 @@ static inline unsigned long pud_pfn(pud_t pud)
 	return (pud_val(pud) & pud_pfn_mask(pud)) >> PAGE_SHIFT;
 }
 
+static inline unsigned long pgd_pfn(pgd_t pgd)
+{
+	return (pgd_val(pgd) & PTE_PFN_MASK) >> PAGE_SHIFT;
+}
+
 #define pte_page(pte)	pfn_to_page(pte_pfn(pte))
 
 static inline int pmd_large(pmd_t pte)
@@ -223,9 +270,29 @@ static inline pte_t pte_wrprotect(pte_t pte)
 	return pte_clear_flags(pte, _PAGE_RW);
 }
 
+static inline pte_t pte_mkread(pte_t pte)
+{
+	return __pte(pte_val(pte) | _PAGE_USER);
+}
+
 static inline pte_t pte_mkexec(pte_t pte)
 {
-	return pte_clear_flags(pte, _PAGE_NX);
+#ifdef CONFIG_X86_PAE
+	if (__supported_pte_mask & _PAGE_NX)
+		return pte_clear_flags(pte, _PAGE_NX);
+	else
+#endif
+		return pte_set_flags(pte, _PAGE_USER);
+}
+
+static inline pte_t pte_exprotect(pte_t pte)
+{
+#ifdef CONFIG_X86_PAE
+	if (__supported_pte_mask & _PAGE_NX)
+		return pte_set_flags(pte, _PAGE_NX);
+	else
+#endif
+		return pte_clear_flags(pte, _PAGE_USER);
 }
 
 static inline pte_t pte_mkdirty(pte_t pte)
@@ -430,7 +497,7 @@ static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot)
 
 #define canon_pgprot(p) __pgprot(massage_pgprot(p))
 
-static inline int is_new_memtype_allowed(u64 paddr, unsigned long size,
+static inline int is_new_memtype_allowed(u64 paddr, u64 size,
 					 enum page_cache_mode pcm,
 					 enum page_cache_mode new_pcm)
 {
@@ -473,6 +540,16 @@ pte_t *populate_extra_pte(unsigned long vaddr);
 #endif
 
 #ifndef __ASSEMBLY__
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+extern pgd_t cpu_pgd[NR_CPUS][2][PTRS_PER_PGD];
+enum cpu_pgd_type {kernel = 0, user = 1};
+static inline pgd_t *get_cpu_pgd(unsigned int cpu, enum cpu_pgd_type type)
+{
+	return cpu_pgd[cpu][type];
+}
+#endif
+
 #include <linux/mm_types.h>
 #include <linux/mmdebug.h>
 #include <linux/log2.h>
@@ -673,7 +750,7 @@ static inline unsigned long pgd_page_vaddr(pgd_t pgd)
  * Currently stuck as a macro due to indirect forward reference to
  * linux/mmzone.h's __section_mem_map_addr() definition:
  */
-#define pgd_page(pgd)		pfn_to_page(pgd_val(pgd) >> PAGE_SHIFT)
+#define pgd_page(pgd)		pfn_to_page((pgd_val(pgd) & PTE_PFN_MASK) >> PAGE_SHIFT)
 
 /* to find an entry in a page-table-directory. */
 static inline unsigned long pud_index(unsigned long address)
@@ -688,7 +765,7 @@ static inline pud_t *pud_offset(pgd_t *pgd, unsigned long address)
 
 static inline int pgd_bad(pgd_t pgd)
 {
-	return (pgd_flags(pgd) & ~_PAGE_USER) != _KERNPG_TABLE;
+	return (pgd_flags(pgd) & ~(_PAGE_USER | _PAGE_NX)) != _KERNPG_TABLE;
 }
 
 static inline int pgd_none(pgd_t pgd)
@@ -711,7 +788,12 @@ static inline int pgd_none(pgd_t pgd)
  * pgd_offset() returns a (pgd_t *)
  * pgd_index() is used get the offset into the pgd page's array of pgd_t's;
  */
-#define pgd_offset(mm, address) ((mm)->pgd + pgd_index((address)))
+#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address))
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+#define pgd_offset_cpu(cpu, type, address) (get_cpu_pgd(cpu, type) + pgd_index(address))
+#endif
+
 /*
  * a shortcut which implies the use of the kernel's pgd, instead
  * of a process's
@@ -722,6 +804,25 @@ static inline int pgd_none(pgd_t pgd)
 #define KERNEL_PGD_BOUNDARY	pgd_index(PAGE_OFFSET)
 #define KERNEL_PGD_PTRS		(PTRS_PER_PGD - KERNEL_PGD_BOUNDARY)
 
+#ifdef CONFIG_X86_32
+#define USER_PGD_PTRS		KERNEL_PGD_BOUNDARY
+#else
+#define TASK_SIZE_MAX_SHIFT CONFIG_TASK_SIZE_MAX_SHIFT
+#define USER_PGD_PTRS		(_AC(1,UL) << (TASK_SIZE_MAX_SHIFT - PGDIR_SHIFT))
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+#ifdef __ASSEMBLY__
+#define pax_user_shadow_base	pax_user_shadow_base(%rip)
+#else
+extern unsigned long pax_user_shadow_base;
+extern pgdval_t clone_pgd_mask;
+#endif
+#else
+#define pax_user_shadow_base	(0UL)
+#endif
+
+#endif
+
 #ifndef __ASSEMBLY__
 
 extern int direct_gbpages;
@@ -876,11 +977,24 @@ static inline void pmdp_set_wrprotect(struct mm_struct *mm,
  * dst and src can be on the same page, but the range must not overlap,
  * and must not cross a page boundary.
  */
-static inline void clone_pgd_range(pgd_t *dst, pgd_t *src, int count)
+static inline void clone_pgd_range(pgd_t *dst, const pgd_t *src, int count)
 {
-       memcpy(dst, src, count * sizeof(pgd_t));
+	pax_open_kernel();
+	while (count--)
+		*dst++ = *src++;
+	pax_close_kernel();
 }
 
+#ifdef CONFIG_PAX_PER_CPU_PGD
+extern void __clone_user_pgds(pgd_t *dst, const pgd_t *src);
+#endif
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+extern void __shadow_user_pgds(pgd_t *dst, const pgd_t *src);
+#else
+static inline void __shadow_user_pgds(pgd_t *dst, const pgd_t *src) {}
+#endif
+
 #define PTE_SHIFT ilog2(PTRS_PER_PTE)
 static inline int page_level_shift(enum pg_level level)
 {
diff --git a/arch/x86/include/asm/pgtable_32.h b/arch/x86/include/asm/pgtable_32.h
index b6c0b40..3535d47 100644
--- a/arch/x86/include/asm/pgtable_32.h
+++ b/arch/x86/include/asm/pgtable_32.h
@@ -25,9 +25,6 @@
 struct mm_struct;
 struct vm_area_struct;
 
-extern pgd_t swapper_pg_dir[1024];
-extern pgd_t initial_page_table[1024];
-
 static inline void pgtable_cache_init(void) { }
 static inline void check_pgt_cache(void) { }
 void paging_init(void);
@@ -45,6 +42,12 @@ void paging_init(void);
 # include <asm/pgtable-2level.h>
 #endif
 
+extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
+extern pgd_t initial_page_table[PTRS_PER_PGD];
+#ifdef CONFIG_X86_PAE
+extern pmd_t swapper_pm_dir[PTRS_PER_PGD][PTRS_PER_PMD];
+#endif
+
 #if defined(CONFIG_HIGHPTE)
 #define pte_offset_map(dir, address)					\
 	((pte_t *)kmap_atomic(pmd_page(*(dir))) +		\
@@ -59,12 +62,17 @@ void paging_init(void);
 /* Clear a kernel PTE and flush it from the TLB */
 #define kpte_clear_flush(ptep, vaddr)		\
 do {						\
+	pax_open_kernel();			\
 	pte_clear(&init_mm, (vaddr), (ptep));	\
+	pax_close_kernel();			\
 	__flush_tlb_one((vaddr));		\
 } while (0)
 
 #endif /* !__ASSEMBLY__ */
 
+#define HAVE_ARCH_UNMAPPED_AREA
+#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN
+
 /*
  * kern_addr_valid() is (1) for FLATMEM and (0) for
  * SPARSEMEM and DISCONTIGMEM
diff --git a/arch/x86/include/asm/pgtable_32_types.h b/arch/x86/include/asm/pgtable_32_types.h
index 9fb2f2b..8e18c70 100644
--- a/arch/x86/include/asm/pgtable_32_types.h
+++ b/arch/x86/include/asm/pgtable_32_types.h
@@ -8,7 +8,7 @@
  */
 #ifdef CONFIG_X86_PAE
 # include <asm/pgtable-3level_types.h>
-# define PMD_SIZE	(1UL << PMD_SHIFT)
+# define PMD_SIZE	(_AC(1, UL) << PMD_SHIFT)
 # define PMD_MASK	(~(PMD_SIZE - 1))
 #else
 # include <asm/pgtable-2level_types.h>
@@ -46,6 +46,28 @@ extern bool __vmalloc_start_set; /* set once high_memory is set */
 # define VMALLOC_END	(FIXADDR_START - 2 * PAGE_SIZE)
 #endif
 
+#ifdef CONFIG_PAX_KERNEXEC
+#ifndef __ASSEMBLY__
+extern unsigned char MODULES_EXEC_VADDR[];
+extern unsigned char MODULES_EXEC_END[];
+
+extern unsigned char __LOAD_PHYSICAL_ADDR[];
+#define LOAD_PHYSICAL_ADDR ((unsigned long)__LOAD_PHYSICAL_ADDR)
+static inline unsigned long __intentional_overflow(-1) ktla_ktva(unsigned long addr)
+{
+	return addr + LOAD_PHYSICAL_ADDR + PAGE_OFFSET;
+
+}
+static inline unsigned long __intentional_overflow(-1) ktva_ktla(unsigned long addr)
+{
+	return addr - LOAD_PHYSICAL_ADDR - PAGE_OFFSET;
+}
+#endif
+#else
+#define ktla_ktva(addr)		(addr)
+#define ktva_ktla(addr)		(addr)
+#endif
+
 #define MODULES_VADDR	VMALLOC_START
 #define MODULES_END	VMALLOC_END
 #define MODULES_LEN	(MODULES_VADDR - MODULES_END)
diff --git a/arch/x86/include/asm/pgtable_64.h b/arch/x86/include/asm/pgtable_64.h
index 2ee7811..1779bde 100644
--- a/arch/x86/include/asm/pgtable_64.h
+++ b/arch/x86/include/asm/pgtable_64.h
@@ -16,11 +16,17 @@
 
 extern pud_t level3_kernel_pgt[512];
 extern pud_t level3_ident_pgt[512];
+extern pud_t level3_vmalloc_start_pgt[4][512];
+extern pud_t level3_vmalloc_end_pgt[512];
+extern pud_t level3_vmemmap_pgt[512];
+extern pud_t level2_vmemmap_pgt[512];
 extern pmd_t level2_kernel_pgt[512];
 extern pmd_t level2_fixmap_pgt[512];
-extern pmd_t level2_ident_pgt[512];
-extern pte_t level1_fixmap_pgt[512];
-extern pgd_t init_level4_pgt[];
+extern pmd_t level2_ident_pgt[2][512];
+extern pte_t level1_modules_pgt[4][512];
+extern pte_t level1_fixmap_pgt[3][512];
+extern pte_t level1_vsyscall_pgt[512];
+extern pgd_t init_level4_pgt[512];
 
 #define swapper_pg_dir init_level4_pgt
 
@@ -62,7 +68,9 @@ static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
 
 static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
 {
+	pax_open_kernel();
 	*pmdp = pmd;
+	pax_close_kernel();
 }
 
 static inline void native_pmd_clear(pmd_t *pmd)
@@ -98,7 +106,9 @@ static inline pmd_t native_pmdp_get_and_clear(pmd_t *xp)
 
 static inline void native_set_pud(pud_t *pudp, pud_t pud)
 {
+	pax_open_kernel();
 	*pudp = pud;
+	pax_close_kernel();
 }
 
 static inline void native_pud_clear(pud_t *pud)
@@ -108,6 +118,13 @@ static inline void native_pud_clear(pud_t *pud)
 
 static inline void native_set_pgd(pgd_t *pgdp, pgd_t pgd)
 {
+	pax_open_kernel();
+	*pgdp = pgd;
+	pax_close_kernel();
+}
+
+static inline void native_set_pgd_batched(pgd_t *pgdp, pgd_t pgd)
+{
 	*pgdp = pgd;
 }
 
diff --git a/arch/x86/include/asm/pgtable_64_types.h b/arch/x86/include/asm/pgtable_64_types.h
index e6844df..432b56e 100644
--- a/arch/x86/include/asm/pgtable_64_types.h
+++ b/arch/x86/include/asm/pgtable_64_types.h
@@ -60,11 +60,16 @@ typedef struct { pteval_t pte; } pte_t;
 #define MODULES_VADDR    (__START_KERNEL_map + KERNEL_IMAGE_SIZE)
 #define MODULES_END      _AC(0xffffffffff000000, UL)
 #define MODULES_LEN   (MODULES_END - MODULES_VADDR)
+#define MODULES_EXEC_VADDR MODULES_VADDR
+#define MODULES_EXEC_END MODULES_END
 #define ESPFIX_PGD_ENTRY _AC(-2, UL)
 #define ESPFIX_BASE_ADDR (ESPFIX_PGD_ENTRY << PGDIR_SHIFT)
 #define EFI_VA_START	 ( -4 * (_AC(1, UL) << 30))
 #define EFI_VA_END	 (-68 * (_AC(1, UL) << 30))
 
+#define ktla_ktva(addr)		(addr)
+#define ktva_ktla(addr)		(addr)
+
 #define EARLY_DYNAMIC_PAGE_TABLES	64
 
 #endif /* _ASM_X86_PGTABLE_64_DEFS_H */
diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h
index 7b5efe2..639cdc0 100644
--- a/arch/x86/include/asm/pgtable_types.h
+++ b/arch/x86/include/asm/pgtable_types.h
@@ -108,9 +108,12 @@
 #define _PAGE_NX	(_AT(pteval_t, 1) << _PAGE_BIT_NX)
 #define _PAGE_DEVMAP	(_AT(u64, 1) << _PAGE_BIT_DEVMAP)
 #define __HAVE_ARCH_PTE_DEVMAP
-#else
+#elif defined(CONFIG_KMEMCHECK) || defined(CONFIG_MEM_SOFT_DIRTY)
 #define _PAGE_NX	(_AT(pteval_t, 0))
 #define _PAGE_DEVMAP	(_AT(pteval_t, 0))
+#else
+#define _PAGE_NX	(_AT(pteval_t, 1) << _PAGE_BIT_HIDDEN)
+#define _PAGE_DEVMAP	(_AT(pteval_t, 0))
 #endif
 
 #define _PAGE_PROTNONE	(_AT(pteval_t, 1) << _PAGE_BIT_PROTNONE)
@@ -170,6 +173,9 @@ enum page_cache_mode {
 #define PAGE_READONLY_EXEC	__pgprot(_PAGE_PRESENT | _PAGE_USER |	\
 					 _PAGE_ACCESSED)
 
+#define PAGE_READONLY_NOEXEC PAGE_READONLY
+#define PAGE_SHARED_NOEXEC PAGE_SHARED
+
 #define __PAGE_KERNEL_EXEC						\
 	(_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_GLOBAL)
 #define __PAGE_KERNEL		(__PAGE_KERNEL_EXEC | _PAGE_NX)
@@ -177,7 +183,7 @@ enum page_cache_mode {
 #define __PAGE_KERNEL_RO		(__PAGE_KERNEL & ~_PAGE_RW)
 #define __PAGE_KERNEL_RX		(__PAGE_KERNEL_EXEC & ~_PAGE_RW)
 #define __PAGE_KERNEL_NOCACHE		(__PAGE_KERNEL | _PAGE_NOCACHE)
-#define __PAGE_KERNEL_VSYSCALL		(__PAGE_KERNEL_RX | _PAGE_USER)
+#define __PAGE_KERNEL_VSYSCALL		(__PAGE_KERNEL_RO | _PAGE_USER)
 #define __PAGE_KERNEL_VVAR		(__PAGE_KERNEL_RO | _PAGE_USER)
 #define __PAGE_KERNEL_LARGE		(__PAGE_KERNEL | _PAGE_PSE)
 #define __PAGE_KERNEL_LARGE_EXEC	(__PAGE_KERNEL_EXEC | _PAGE_PSE)
@@ -223,7 +229,7 @@ enum page_cache_mode {
 #ifdef CONFIG_X86_64
 #define __PAGE_KERNEL_IDENT_LARGE_EXEC	__PAGE_KERNEL_LARGE_EXEC
 #else
-#define PTE_IDENT_ATTR	 0x003		/* PRESENT+RW */
+#define PTE_IDENT_ATTR	 0x063		/* PRESENT+RW+DIRTY+ACCESSED */
 #define PDE_IDENT_ATTR	 0x063		/* PRESENT+RW+DIRTY+ACCESSED */
 #define PGD_IDENT_ATTR	 0x001		/* PRESENT (no other attributes) */
 #endif
@@ -265,7 +271,17 @@ static inline pgdval_t pgd_flags(pgd_t pgd)
 {
 	return native_pgd_val(pgd) & PTE_FLAGS_MASK;
 }
+#endif
 
+#if CONFIG_PGTABLE_LEVELS == 3
+#include <asm-generic/pgtable-nopud.h>
+#endif
+
+#if CONFIG_PGTABLE_LEVELS == 2
+#include <asm-generic/pgtable-nopmd.h>
+#endif
+
+#ifndef __ASSEMBLY__
 #if CONFIG_PGTABLE_LEVELS > 3
 typedef struct { pudval_t pud; } pud_t;
 
@@ -279,8 +295,6 @@ static inline pudval_t native_pud_val(pud_t pud)
 	return pud.pud;
 }
 #else
-#include <asm-generic/pgtable-nopud.h>
-
 static inline pudval_t native_pud_val(pud_t pud)
 {
 	return native_pgd_val(pud.pgd);
@@ -300,8 +314,6 @@ static inline pmdval_t native_pmd_val(pmd_t pmd)
 	return pmd.pmd;
 }
 #else
-#include <asm-generic/pgtable-nopmd.h>
-
 static inline pmdval_t native_pmd_val(pmd_t pmd)
 {
 	return native_pgd_val(pmd.pud.pgd);
@@ -418,7 +430,6 @@ typedef struct page *pgtable_t;
 
 extern pteval_t __supported_pte_mask;
 extern void set_nx(void);
-extern int nx_enabled;
 
 #define pgprot_writecombine	pgprot_writecombine
 extern pgprot_t pgprot_writecombine(pgprot_t prot);
diff --git a/arch/x86/include/asm/pmem.h b/arch/x86/include/asm/pmem.h
index fbc5e92..0af7895 100644
--- a/arch/x86/include/asm/pmem.h
+++ b/arch/x86/include/asm/pmem.h
@@ -41,7 +41,7 @@ static inline void arch_memcpy_to_pmem(void __pmem *dst, const void *src,
 	 * before the WARN+BUG.
 	 */
 	unwritten = __copy_from_user_inatomic_nocache((void __force *) dst,
-			(void __user *) src, n);
+			(void __force_user *) src, n);
 	if (WARN(unwritten, "%s: fault copying %p <- %p unwritten: %d\n",
 				__func__, dst, src, unwritten))
 		BUG();
diff --git a/arch/x86/include/asm/preempt.h b/arch/x86/include/asm/preempt.h
index d397deb..e977c3b 100644
--- a/arch/x86/include/asm/preempt.h
+++ b/arch/x86/include/asm/preempt.h
@@ -81,7 +81,7 @@ static __always_inline void __preempt_count_sub(int val)
  */
 static __always_inline bool __preempt_count_dec_and_test(void)
 {
-	GEN_UNARY_RMWcc("decl", __preempt_count, __percpu_arg(0), "e");
+	GEN_UNARY_RMWcc("decl", "incl", __preempt_count, __percpu_arg(0), "e");
 }
 
 /*
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 9264476..a56f17d 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -135,7 +135,7 @@ struct cpuinfo_x86 {
 	/* Index into per_cpu list: */
 	u16			cpu_index;
 	u32			microcode;
-};
+} __randomize_layout;
 
 #define X86_VENDOR_INTEL	0
 #define X86_VENDOR_CYRIX	1
@@ -205,9 +205,21 @@ static inline void native_cpuid(unsigned int *eax, unsigned int *ebx,
 	    : "memory");
 }
 
+/* invpcid (%rdx),%rax */
+#define __ASM_INVPCID ".byte 0x66,0x0f,0x38,0x82,0x02"
+
+#define INVPCID_SINGLE_ADDRESS	0UL
+#define INVPCID_SINGLE_CONTEXT	1UL
+#define INVPCID_ALL_GLOBAL	2UL
+#define INVPCID_ALL_NONGLOBAL	3UL
+
+#define PCID_KERNEL		0UL
+#define PCID_USER		1UL
+#define PCID_NOFLUSH		(1UL << 63)
+
 static inline void load_cr3(pgd_t *pgdir)
 {
-	write_cr3(__pa(pgdir));
+	write_cr3(__pa(pgdir) | PCID_KERNEL);
 }
 
 #ifdef CONFIG_X86_32
@@ -307,11 +319,9 @@ struct tss_struct {
 
 } ____cacheline_aligned;
 
-DECLARE_PER_CPU_SHARED_ALIGNED(struct tss_struct, cpu_tss);
+extern struct tss_struct cpu_tss[NR_CPUS];
 
-#ifdef CONFIG_X86_32
 DECLARE_PER_CPU(unsigned long, cpu_current_top_of_stack);
-#endif
 
 /*
  * Save the original ist values for checking stack pointers during debugging
@@ -383,6 +393,7 @@ struct thread_struct {
 	unsigned short		ds;
 	unsigned short		fsindex;
 	unsigned short		gsindex;
+	unsigned short		ss;
 #endif
 #ifdef CONFIG_X86_32
 	unsigned long		ip;
@@ -392,6 +403,9 @@ struct thread_struct {
 #endif
 	unsigned long		gs;
 
+	/* Floating point and extended processor state */
+	struct fpu		fpu;
+
 	/* Save middle states of ptrace breakpoints */
 	struct perf_event	*ptrace_bps[HBP_NUM];
 	/* Debug status used for traps, single steps, etc... */
@@ -411,13 +425,6 @@ struct thread_struct {
 	unsigned long		iopl;
 	/* Max allowed port in the bitmap, in bytes: */
 	unsigned		io_bitmap_max;
-
-	/* Floating point and extended processor state */
-	struct fpu		fpu;
-	/*
-	 * WARNING: 'fpu' is dynamically-sized.  It *MUST* be at
-	 * the end.
-	 */
 };
 
 /*
@@ -459,10 +466,10 @@ static inline void native_swapgs(void)
 #endif
 }
 
-static inline unsigned long current_top_of_stack(void)
+static inline unsigned long current_top_of_stack(unsigned int cpu)
 {
 #ifdef CONFIG_X86_64
-	return this_cpu_read_stable(cpu_tss.x86_tss.sp0);
+	return cpu_tss[cpu].x86_tss.sp0;
 #else
 	/* sp0 on x86_32 is special in and around vm86 mode. */
 	return this_cpu_read_stable(cpu_current_top_of_stack);
@@ -698,19 +705,29 @@ static inline void spin_lock_prefetch(const void *x)
 #define TOP_OF_INIT_STACK ((unsigned long)&init_stack + sizeof(init_stack) - \
 			   TOP_OF_KERNEL_STACK_PADDING)
 
+extern union fpregs_state init_fpregs_state;
+
 #ifdef CONFIG_X86_32
 /*
  * User space process size: 3GB (default).
  */
 #define TASK_SIZE		PAGE_OFFSET
 #define TASK_SIZE_MAX		TASK_SIZE
+
+#ifdef CONFIG_PAX_SEGMEXEC
+#define SEGMEXEC_TASK_SIZE	(TASK_SIZE / 2)
+#define STACK_TOP		((current->mm->pax_flags & MF_PAX_SEGMEXEC)?SEGMEXEC_TASK_SIZE:TASK_SIZE)
+#else
 #define STACK_TOP		TASK_SIZE
-#define STACK_TOP_MAX		STACK_TOP
+#endif
+
+#define STACK_TOP_MAX		TASK_SIZE
 
 #define INIT_THREAD  {							  \
 	.sp0			= TOP_OF_INIT_STACK,			  \
 	.sysenter_cs		= __KERNEL_CS,				  \
 	.io_bitmap_ptr		= NULL,					  \
+	.fpu.state		= &init_fpregs_state,			  \
 }
 
 extern unsigned long thread_saved_pc(struct task_struct *tsk);
@@ -725,12 +742,7 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
  * "struct pt_regs" is possible, but they may contain the
  * completely wrong values.
  */
-#define task_pt_regs(task) \
-({									\
-	unsigned long __ptr = (unsigned long)task_stack_page(task);	\
-	__ptr += THREAD_SIZE - TOP_OF_KERNEL_STACK_PADDING;		\
-	((struct pt_regs *)__ptr) - 1;					\
-})
+#define task_pt_regs(tsk)	((struct pt_regs *)(tsk)->thread.sp0 - 1)
 
 #define KSTK_ESP(task)		(task_pt_regs(task)->sp)
 
@@ -744,13 +756,13 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
  * particular problem by preventing anything from being mapped
  * at the maximum canonical address.
  */
-#define TASK_SIZE_MAX	((1UL << 47) - PAGE_SIZE)
+#define TASK_SIZE_MAX	((1UL << TASK_SIZE_MAX_SHIFT) - PAGE_SIZE)
 
 /* This decides where the kernel will search for a free chunk of vm
  * space during mmap's.
  */
 #define IA32_PAGE_OFFSET	((current->personality & ADDR_LIMIT_3GB) ? \
-					0xc0000000 : 0xFFFFe000)
+					0xc0000000 : 0xFFFFf000)
 
 #define TASK_SIZE		(test_thread_flag(TIF_ADDR32) ? \
 					IA32_PAGE_OFFSET : TASK_SIZE_MAX)
@@ -761,7 +773,8 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
 #define STACK_TOP_MAX		TASK_SIZE_MAX
 
 #define INIT_THREAD  { \
-	.sp0 = TOP_OF_INIT_STACK \
+	.sp0 = TOP_OF_INIT_STACK, \
+	.fpu.state = &init_fpregs_state, \
 }
 
 /*
@@ -784,6 +797,10 @@ extern void start_thread(struct pt_regs *regs, unsigned long new_ip,
  */
 #define TASK_UNMAPPED_BASE	(PAGE_ALIGN(TASK_SIZE / 3))
 
+#ifdef CONFIG_PAX_SEGMEXEC
+#define SEGMEXEC_TASK_UNMAPPED_BASE	(PAGE_ALIGN(SEGMEXEC_TASK_SIZE / 3))
+#endif
+
 #define KSTK_EIP(task)		(task_pt_regs(task)->ip)
 
 /* Get/set a process' ability to use the timestamp counter instruction */
@@ -829,7 +846,7 @@ static inline uint32_t hypervisor_cpuid_base(const char *sig, uint32_t leaves)
 	return 0;
 }
 
-extern unsigned long arch_align_stack(unsigned long sp);
+#define arch_align_stack(x) ((x) & ~0xfUL)
 extern void free_init_pages(char *what, unsigned long begin, unsigned long end);
 
 void default_idle(void);
@@ -839,6 +856,6 @@ bool xen_set_default_idle(void);
 #define xen_set_default_idle 0
 #endif
 
-void stop_this_cpu(void *dummy);
+void stop_this_cpu(void *dummy) __noreturn;
 void df_debug(struct pt_regs *regs, long error_code);
 #endif /* _ASM_X86_PROCESSOR_H */
diff --git a/arch/x86/include/asm/ptrace.h b/arch/x86/include/asm/ptrace.h
index 6271281..eab16e0 100644
--- a/arch/x86/include/asm/ptrace.h
+++ b/arch/x86/include/asm/ptrace.h
@@ -87,8 +87,6 @@ extern unsigned long syscall_trace_enter_phase1(struct pt_regs *, u32 arch);
 extern long syscall_trace_enter_phase2(struct pt_regs *, u32 arch,
 				       unsigned long phase1_result);
 
-extern long syscall_trace_enter(struct pt_regs *);
-
 static inline unsigned long regs_return_value(struct pt_regs *regs)
 {
 	return regs->ax;
@@ -124,15 +122,16 @@ static inline int v8086_mode(struct pt_regs *regs)
 #ifdef CONFIG_X86_64
 static inline bool user_64bit_mode(struct pt_regs *regs)
 {
+	unsigned long cs = regs->cs & 0xffff;
 #ifndef CONFIG_PARAVIRT
 	/*
 	 * On non-paravirt systems, this is the only long mode CPL 3
 	 * selector.  We do not allow long mode selectors in the LDT.
 	 */
-	return regs->cs == __USER_CS;
+	return cs == __USER_CS;
 #else
 	/* Headers are too twisted for this to go in paravirt.h. */
-	return regs->cs == __USER_CS || regs->cs == pv_info.extra_user_64bit_cs;
+	return cs == __USER_CS || cs == pv_info.extra_user_64bit_cs;
 #endif
 }
 
@@ -179,9 +178,11 @@ static inline unsigned long regs_get_register(struct pt_regs *regs,
 	 * Traps from the kernel do not save sp and ss.
 	 * Use the helper function to retrieve sp.
 	 */
-	if (offset == offsetof(struct pt_regs, sp) &&
-	    regs->cs == __KERNEL_CS)
-		return kernel_stack_pointer(regs);
+	if (offset == offsetof(struct pt_regs, sp)) {
+		unsigned long cs = regs->cs & 0xffff;
+		if (cs == __KERNEL_CS || cs == __KERNEXEC_KERNEL_CS)
+			return kernel_stack_pointer(regs);
+	}
 #endif
 	return *(unsigned long *)((unsigned long)regs + offset);
 }
diff --git a/arch/x86/include/asm/realmode.h b/arch/x86/include/asm/realmode.h
index 9c6b890..5305f53 100644
--- a/arch/x86/include/asm/realmode.h
+++ b/arch/x86/include/asm/realmode.h
@@ -22,16 +22,14 @@ struct real_mode_header {
 #endif
 	/* APM/BIOS reboot */
 	u32	machine_real_restart_asm;
-#ifdef CONFIG_X86_64
 	u32	machine_real_restart_seg;
-#endif
 };
 
 /* This must match data at trampoline_32/64.S */
 struct trampoline_header {
 #ifdef CONFIG_X86_32
 	u32 start;
-	u16 gdt_pad;
+	u16 boot_cs;
 	u16 gdt_limit;
 	u32 gdt_base;
 #else
diff --git a/arch/x86/include/asm/reboot.h b/arch/x86/include/asm/reboot.h
index 2cb1cc2..787d524 100644
--- a/arch/x86/include/asm/reboot.h
+++ b/arch/x86/include/asm/reboot.h
@@ -6,13 +6,13 @@
 struct pt_regs;
 
 struct machine_ops {
-	void (*restart)(char *cmd);
-	void (*halt)(void);
-	void (*power_off)(void);
+	void (* __noreturn restart)(char *cmd);
+	void (* __noreturn halt)(void);
+	void (* __noreturn power_off)(void);
 	void (*shutdown)(void);
 	void (*crash_shutdown)(struct pt_regs *);
-	void (*emergency_restart)(void);
-};
+	void (* __noreturn emergency_restart)(void);
+} __no_const;
 
 extern struct machine_ops machine_ops;
 
diff --git a/arch/x86/include/asm/rmwcc.h b/arch/x86/include/asm/rmwcc.h
index 8f7866a..e442f20 100644
--- a/arch/x86/include/asm/rmwcc.h
+++ b/arch/x86/include/asm/rmwcc.h
@@ -3,7 +3,34 @@
 
 #ifdef CC_HAVE_ASM_GOTO
 
-#define __GEN_RMWcc(fullop, var, cc, ...)				\
+#ifdef CONFIG_PAX_REFCOUNT
+#define __GEN_RMWcc(fullop, fullantiop, var, cc, ...)			\
+do {									\
+	asm_volatile_goto (fullop					\
+			";jno 0f\n"					\
+			fullantiop					\
+			";int $4\n0:\n"					\
+			_ASM_EXTABLE(0b, 0b)				\
+			 ";j" cc " %l[cc_label]"			\
+			: : "m" (var), ## __VA_ARGS__ 			\
+			: "memory" : cc_label);				\
+	return 0;							\
+cc_label:								\
+	return 1;							\
+} while (0)
+#else
+#define __GEN_RMWcc(fullop, fullantiop, var, cc, ...)			\
+do {									\
+	asm_volatile_goto (fullop ";j" cc " %l[cc_label]"		\
+			: : "m" (var), ## __VA_ARGS__ 			\
+			: "memory" : cc_label);				\
+	return 0;							\
+cc_label:								\
+	return 1;							\
+} while (0)
+#endif
+
+#define __GEN_RMWcc_unchecked(fullop, var, cc, ...)			\
 do {									\
 	asm_volatile_goto (fullop "; j" cc " %l[cc_label]"		\
 			: : "m" (var), ## __VA_ARGS__ 			\
@@ -13,15 +40,46 @@ cc_label:								\
 	return 1;							\
 } while (0)
 
-#define GEN_UNARY_RMWcc(op, var, arg0, cc) 				\
-	__GEN_RMWcc(op " " arg0, var, cc)
+#define GEN_UNARY_RMWcc(op, antiop, var, arg0, cc) 			\
+	__GEN_RMWcc(op " " arg0, antiop " " arg0, var, cc)
 
-#define GEN_BINARY_RMWcc(op, var, vcon, val, arg0, cc)			\
-	__GEN_RMWcc(op " %1, " arg0, var, cc, vcon (val))
+#define GEN_UNARY_RMWcc_unchecked(op, var, arg0, cc) 			\
+	__GEN_RMWcc_unchecked(op " " arg0, var, cc)
+
+#define GEN_BINARY_RMWcc(op, antiop, var, vcon, val, arg0, cc)		\
+	__GEN_RMWcc(op " %1, " arg0, antiop " %1, " arg0, var, cc, vcon (val))
+
+#define GEN_BINARY_RMWcc_unchecked(op, var, vcon, val, arg0, cc)	\
+	__GEN_RMWcc_unchecked(op " %1, " arg0, var, cc, vcon (val))
 
 #else /* !CC_HAVE_ASM_GOTO */
 
-#define __GEN_RMWcc(fullop, var, cc, ...)				\
+#ifdef CONFIG_PAX_REFCOUNT
+#define __GEN_RMWcc(fullop, fullantiop, var, cc, ...)			\
+do {									\
+	char c;								\
+	asm volatile (fullop 						\
+			";jno 0f\n"					\
+			fullantiop					\
+			";int $4\n0:\n"					\
+			_ASM_EXTABLE(0b, 0b)				\
+			"; set" cc " %1"				\
+			: "+m" (var), "=qm" (c)				\
+			: __VA_ARGS__ : "memory");			\
+	return c != 0;							\
+} while (0)
+#else
+#define __GEN_RMWcc(fullop, fullantiop, var, cc, ...)			\
+do {									\
+	char c;								\
+	asm volatile (fullop "; set" cc " %1"				\
+			: "+m" (var), "=qm" (c)				\
+			: __VA_ARGS__ : "memory");			\
+	return c != 0;							\
+} while (0)
+#endif
+
+#define __GEN_RMWcc_unchecked(fullop, var, cc, ...)			\
 do {									\
 	char c;								\
 	asm volatile (fullop "; set" cc " %1"				\
@@ -30,11 +88,17 @@ do {									\
 	return c != 0;							\
 } while (0)
 
-#define GEN_UNARY_RMWcc(op, var, arg0, cc)				\
-	__GEN_RMWcc(op " " arg0, var, cc)
+#define GEN_UNARY_RMWcc(op, antiop, var, arg0, cc)			\
+	__GEN_RMWcc(op " " arg0, antiop " " arg0, var, cc)
+
+#define GEN_UNARY_RMWcc_unchecked(op, var, arg0, cc)			\
+	__GEN_RMWcc_unchecked(op " " arg0, var, cc)
+
+#define GEN_BINARY_RMWcc(op, antiop, var, vcon, val, arg0, cc)		\
+	__GEN_RMWcc(op " %2, " arg0, antiop " %2, " arg0, var, cc, vcon (val))
 
-#define GEN_BINARY_RMWcc(op, var, vcon, val, arg0, cc)			\
-	__GEN_RMWcc(op " %2, " arg0, var, cc, vcon (val))
+#define GEN_BINARY_RMWcc_unchecked(op, var, vcon, val, arg0, cc)	\
+	__GEN_RMWcc_unchecked(op " %2, " arg0, var, cc, vcon (val))
 
 #endif /* CC_HAVE_ASM_GOTO */
 
diff --git a/arch/x86/include/asm/rwsem.h b/arch/x86/include/asm/rwsem.h
index ceec86eb..872e33a 100644
--- a/arch/x86/include/asm/rwsem.h
+++ b/arch/x86/include/asm/rwsem.h
@@ -64,6 +64,14 @@ static inline void __down_read(struct rw_semaphore *sem)
 {
 	asm volatile("# beginning down_read\n\t"
 		     LOCK_PREFIX _ASM_INC "(%1)\n\t"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX _ASM_DEC "(%1)\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
 		     /* adds 0x00000001 */
 		     "  jns        1f\n"
 		     "  call call_rwsem_down_read_failed\n"
@@ -85,6 +93,14 @@ static inline int __down_read_trylock(struct rw_semaphore *sem)
 		     "1:\n\t"
 		     "  mov          %1,%2\n\t"
 		     "  add          %3,%2\n\t"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     "sub %3,%2\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
 		     "  jle	     2f\n\t"
 		     LOCK_PREFIX "  cmpxchg  %2,%0\n\t"
 		     "  jnz	     1b\n\t"
@@ -104,6 +120,14 @@ static inline void __down_write_nested(struct rw_semaphore *sem, int subclass)
 	long tmp;
 	asm volatile("# beginning down_write\n\t"
 		     LOCK_PREFIX "  xadd      %1,(%2)\n\t"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     "mov %1,(%2)\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
 		     /* adds 0xffff0001, returns the old value */
 		     "  test " __ASM_SEL(%w1,%k1) "," __ASM_SEL(%w1,%k1) "\n\t"
 		     /* was the active mask 0 before? */
@@ -155,6 +179,14 @@ static inline void __up_read(struct rw_semaphore *sem)
 	long tmp;
 	asm volatile("# beginning __up_read\n\t"
 		     LOCK_PREFIX "  xadd      %1,(%2)\n\t"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     "mov %1,(%2)\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
 		     /* subtracts 1, returns the old value */
 		     "  jns        1f\n\t"
 		     "  call call_rwsem_wake\n" /* expects old value in %edx */
@@ -173,6 +205,14 @@ static inline void __up_write(struct rw_semaphore *sem)
 	long tmp;
 	asm volatile("# beginning __up_write\n\t"
 		     LOCK_PREFIX "  xadd      %1,(%2)\n\t"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     "mov %1,(%2)\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
 		     /* subtracts 0xffff0001, returns the old value */
 		     "  jns        1f\n\t"
 		     "  call call_rwsem_wake\n" /* expects old value in %edx */
@@ -190,6 +230,14 @@ static inline void __downgrade_write(struct rw_semaphore *sem)
 {
 	asm volatile("# beginning __downgrade_write\n\t"
 		     LOCK_PREFIX _ASM_ADD "%2,(%1)\n\t"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX _ASM_SUB "%2,(%1)\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
 		     /*
 		      * transitions 0xZZZZ0001 -> 0xYYYY0001 (i386)
 		      *     0xZZZZZZZZ00000001 -> 0xYYYYYYYY00000001 (x86_64)
@@ -208,7 +256,15 @@ static inline void __downgrade_write(struct rw_semaphore *sem)
  */
 static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
 {
-	asm volatile(LOCK_PREFIX _ASM_ADD "%1,%0"
+	asm volatile(LOCK_PREFIX _ASM_ADD "%1,%0\n"
+
+#ifdef CONFIG_PAX_REFCOUNT
+		     "jno 0f\n"
+		     LOCK_PREFIX _ASM_SUB "%1,%0\n"
+		     "int $4\n0:\n"
+		     _ASM_EXTABLE(0b, 0b)
+#endif
+
 		     : "+m" (sem->count)
 		     : "er" (delta));
 }
@@ -218,7 +274,7 @@ static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
  */
 static inline long rwsem_atomic_update(long delta, struct rw_semaphore *sem)
 {
-	return delta + xadd(&sem->count, delta);
+	return delta + xadd_check_overflow(&sem->count, delta);
 }
 
 #endif /* __KERNEL__ */
diff --git a/arch/x86/include/asm/segment.h b/arch/x86/include/asm/segment.h
index 7d5a192..23ef1aa 100644
--- a/arch/x86/include/asm/segment.h
+++ b/arch/x86/include/asm/segment.h
@@ -82,14 +82,20 @@
  *  26 - ESPFIX small SS
  *  27 - per-cpu			[ offset to per-cpu data area ]
  *  28 - stack_canary-20		[ for stack protector ]		<=== cacheline #8
- *  29 - unused
- *  30 - unused
+ *  29 - PCI BIOS CS
+ *  30 - PCI BIOS DS
  *  31 - TSS for double fault handler
  */
+#define GDT_ENTRY_KERNEXEC_EFI_CS	(1)
+#define GDT_ENTRY_KERNEXEC_EFI_DS	(2)
+#define __KERNEXEC_EFI_CS	(GDT_ENTRY_KERNEXEC_EFI_CS*8)
+#define __KERNEXEC_EFI_DS	(GDT_ENTRY_KERNEXEC_EFI_DS*8)
+
 #define GDT_ENTRY_TLS_MIN		6
 #define GDT_ENTRY_TLS_MAX 		(GDT_ENTRY_TLS_MIN + GDT_ENTRY_TLS_ENTRIES - 1)
 
 #define GDT_ENTRY_KERNEL_CS		12
+#define GDT_ENTRY_KERNEXEC_KERNEL_CS	4
 #define GDT_ENTRY_KERNEL_DS		13
 #define GDT_ENTRY_DEFAULT_USER_CS	14
 #define GDT_ENTRY_DEFAULT_USER_DS	15
@@ -106,6 +112,12 @@
 #define GDT_ENTRY_PERCPU		27
 #define GDT_ENTRY_STACK_CANARY		28
 
+#define GDT_ENTRY_PCIBIOS_CS		29
+#define __PCIBIOS_DS (GDT_ENTRY_PCIBIOS_DS * 8)
+
+#define GDT_ENTRY_PCIBIOS_DS		30
+#define __PCIBIOS_CS (GDT_ENTRY_PCIBIOS_CS * 8)
+
 #define GDT_ENTRY_DOUBLEFAULT_TSS	31
 
 /*
@@ -118,6 +130,7 @@
  */
 
 #define __KERNEL_CS			(GDT_ENTRY_KERNEL_CS*8)
+#define __KERNEXEC_KERNEL_CS		(GDT_ENTRY_KERNEXEC_KERNEL_CS*8)
 #define __KERNEL_DS			(GDT_ENTRY_KERNEL_DS*8)
 #define __USER_DS			(GDT_ENTRY_DEFAULT_USER_DS*8 + 3)
 #define __USER_CS			(GDT_ENTRY_DEFAULT_USER_CS*8 + 3)
@@ -129,7 +142,7 @@
 #define PNP_CS16			(GDT_ENTRY_PNPBIOS_CS16*8)
 
 /* "Is this PNP code selector (PNP_CS32 or PNP_CS16)?" */
-#define SEGMENT_IS_PNP_CODE(x)		(((x) & 0xf4) == PNP_CS32)
+#define SEGMENT_IS_PNP_CODE(x)		(((x) & 0xFFFCU) == PNP_CS32 || ((x) & 0xFFFCU) == PNP_CS16)
 
 /* data segment for BIOS: */
 #define PNP_DS				(GDT_ENTRY_PNPBIOS_DS*8)
@@ -176,6 +189,8 @@
 #define GDT_ENTRY_DEFAULT_USER_DS	5
 #define GDT_ENTRY_DEFAULT_USER_CS	6
 
+#define GDT_ENTRY_KERNEXEC_KERNEL_CS	7
+
 /* Needs two entries */
 #define GDT_ENTRY_TSS			8
 /* Needs two entries */
@@ -187,10 +202,12 @@
 /* Abused to load per CPU data from limit */
 #define GDT_ENTRY_PER_CPU		15
 
+#define GDT_ENTRY_UDEREF_KERNEL_DS	16
+
 /*
  * Number of entries in the GDT table:
  */
-#define GDT_ENTRIES			16
+#define GDT_ENTRIES			17
 
 /*
  * Segment selector values corresponding to the above entries:
@@ -200,7 +217,9 @@
  */
 #define __KERNEL32_CS			(GDT_ENTRY_KERNEL32_CS*8)
 #define __KERNEL_CS			(GDT_ENTRY_KERNEL_CS*8)
+#define __KERNEXEC_KERNEL_CS		(GDT_ENTRY_KERNEXEC_KERNEL_CS*8)
 #define __KERNEL_DS			(GDT_ENTRY_KERNEL_DS*8)
+#define __UDEREF_KERNEL_DS		(GDT_ENTRY_UDEREF_KERNEL_DS*8)
 #define __USER32_CS			(GDT_ENTRY_DEFAULT_USER32_CS*8 + 3)
 #define __USER_DS			(GDT_ENTRY_DEFAULT_USER_DS*8 + 3)
 #define __USER32_DS			__USER_DS
diff --git a/arch/x86/include/asm/smap.h b/arch/x86/include/asm/smap.h
index db33330..e9521fb 100644
--- a/arch/x86/include/asm/smap.h
+++ b/arch/x86/include/asm/smap.h
@@ -25,6 +25,18 @@
 
 #include <asm/alternative-asm.h>
 
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+#define ASM_PAX_OPEN_USERLAND					\
+	ALTERNATIVE "", "call __pax_open_userland", X86_FEATURE_STRONGUDEREF
+
+#define ASM_PAX_CLOSE_USERLAND					\
+	ALTERNATIVE "", "call __pax_close_userland", X86_FEATURE_STRONGUDEREF
+
+#else
+#define ASM_PAX_OPEN_USERLAND
+#define ASM_PAX_CLOSE_USERLAND
+#endif
+
 #ifdef CONFIG_X86_SMAP
 
 #define ASM_CLAC \
@@ -44,6 +56,37 @@
 
 #include <asm/alternative.h>
 
+#define __HAVE_ARCH_PAX_OPEN_USERLAND
+#define __HAVE_ARCH_PAX_CLOSE_USERLAND
+
+extern void __pax_open_userland(void);
+static __always_inline unsigned long pax_open_userland(void)
+{
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+	asm volatile(ALTERNATIVE("", "call %P[open]", X86_FEATURE_STRONGUDEREF)
+		:
+		: [open] "i" (__pax_open_userland)
+		: "memory", "rax");
+#endif
+
+	return 0;
+}
+
+extern void __pax_close_userland(void);
+static __always_inline unsigned long pax_close_userland(void)
+{
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+	asm volatile(ALTERNATIVE("", "call %P[close]", X86_FEATURE_STRONGUDEREF)
+		:
+		: [close] "i" (__pax_close_userland)
+		: "memory", "rax");
+#endif
+
+	return 0;
+}
+
 #ifdef CONFIG_X86_SMAP
 
 static __always_inline void clac(void)
diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h
index 66b0573..2bdb55a 100644
--- a/arch/x86/include/asm/smp.h
+++ b/arch/x86/include/asm/smp.h
@@ -25,7 +25,7 @@ DECLARE_PER_CPU_READ_MOSTLY(cpumask_var_t, cpu_core_map);
 /* cpus sharing the last level cache: */
 DECLARE_PER_CPU_READ_MOSTLY(cpumask_var_t, cpu_llc_shared_map);
 DECLARE_PER_CPU_READ_MOSTLY(u16, cpu_llc_id);
-DECLARE_PER_CPU_READ_MOSTLY(int, cpu_number);
+DECLARE_PER_CPU_READ_MOSTLY(unsigned int, cpu_number);
 
 static inline struct cpumask *cpu_llc_shared_mask(int cpu)
 {
@@ -58,7 +58,7 @@ struct smp_ops {
 
 	void (*send_call_func_ipi)(const struct cpumask *mask);
 	void (*send_call_func_single_ipi)(int cpu);
-};
+} __no_const;
 
 /* Globals due to paravirt */
 extern void set_cpu_sibling_map(int cpu);
@@ -170,14 +170,8 @@ extern unsigned disabled_cpus;
 extern int safe_smp_processor_id(void);
 
 #elif defined(CONFIG_X86_64_SMP)
-#define raw_smp_processor_id() (this_cpu_read(cpu_number))
-
-#define stack_smp_processor_id()					\
-({								\
-	struct thread_info *ti;						\
-	__asm__("andq %%rsp,%0; ":"=r" (ti) : "0" (CURRENT_MASK));	\
-	ti->cpu;							\
-})
+#define raw_smp_processor_id()		(this_cpu_read(cpu_number))
+#define stack_smp_processor_id()	raw_smp_processor_id()
 #define safe_smp_processor_id()		smp_processor_id()
 
 #endif
diff --git a/arch/x86/include/asm/stackprotector.h b/arch/x86/include/asm/stackprotector.h
index 58505f0..bff3b5b 100644
--- a/arch/x86/include/asm/stackprotector.h
+++ b/arch/x86/include/asm/stackprotector.h
@@ -49,7 +49,7 @@
  * head_32 for boot CPU and setup_per_cpu_areas() for others.
  */
 #define GDT_STACK_CANARY_INIT						\
-	[GDT_ENTRY_STACK_CANARY] = GDT_ENTRY_INIT(0x4090, 0, 0x18),
+	[GDT_ENTRY_STACK_CANARY] = GDT_ENTRY_INIT(0x4090, 0, 0x17),
 
 /*
  * Initialize the stackprotector canary value.
@@ -114,7 +114,7 @@ static inline void setup_stack_canary_segment(int cpu)
 
 static inline void load_stack_canary_segment(void)
 {
-#ifdef CONFIG_X86_32
+#if defined(CONFIG_X86_32) && !defined(CONFIG_PAX_MEMORY_UDEREF)
 	asm volatile ("mov %0, %%gs" : : "r" (0));
 #endif
 }
diff --git a/arch/x86/include/asm/stacktrace.h b/arch/x86/include/asm/stacktrace.h
index 7c247e7..2f17b1b 100644
--- a/arch/x86/include/asm/stacktrace.h
+++ b/arch/x86/include/asm/stacktrace.h
@@ -11,28 +11,20 @@
 
 extern int kstack_depth_to_print;
 
-struct thread_info;
+struct task_struct;
 struct stacktrace_ops;
 
-typedef unsigned long (*walk_stack_t)(struct thread_info *tinfo,
-				      unsigned long *stack,
-				      unsigned long bp,
-				      const struct stacktrace_ops *ops,
-				      void *data,
-				      unsigned long *end,
-				      int *graph);
+typedef unsigned long walk_stack_t(struct task_struct *task,
+				   void *stack_start,
+				   unsigned long *stack,
+				   unsigned long bp,
+				   const struct stacktrace_ops *ops,
+				   void *data,
+				   unsigned long *end,
+				   int *graph);
 
-extern unsigned long
-print_context_stack(struct thread_info *tinfo,
-		    unsigned long *stack, unsigned long bp,
-		    const struct stacktrace_ops *ops, void *data,
-		    unsigned long *end, int *graph);
-
-extern unsigned long
-print_context_stack_bp(struct thread_info *tinfo,
-		       unsigned long *stack, unsigned long bp,
-		       const struct stacktrace_ops *ops, void *data,
-		       unsigned long *end, int *graph);
+extern walk_stack_t print_context_stack;
+extern walk_stack_t print_context_stack_bp;
 
 /* Generic stack tracer with callbacks */
 
@@ -40,7 +32,7 @@ struct stacktrace_ops {
 	int (*address)(void *data, unsigned long address, int reliable);
 	/* On negative return stop dumping */
 	int (*stack)(void *data, char *name);
-	walk_stack_t	walk_stack;
+	walk_stack_t	*walk_stack;
 };
 
 void dump_trace(struct task_struct *tsk, struct pt_regs *regs,
diff --git a/arch/x86/include/asm/string_32.h b/arch/x86/include/asm/string_32.h
index 3d3e835..5cc6d8d 100644
--- a/arch/x86/include/asm/string_32.h
+++ b/arch/x86/include/asm/string_32.h
@@ -6,25 +6,25 @@
 /* Let gcc decide whether to inline or use the out of line functions */
 
 #define __HAVE_ARCH_STRCPY
-extern char *strcpy(char *dest, const char *src);
+extern char *strcpy(char *dest, const char *src) __nocapture(2);
 
 #define __HAVE_ARCH_STRNCPY
-extern char *strncpy(char *dest, const char *src, size_t count);
+extern char *strncpy(char *dest, const char *src, size_t count) __nocapture(2);
 
 #define __HAVE_ARCH_STRCAT
-extern char *strcat(char *dest, const char *src);
+extern char *strcat(char *dest, const char *src) __nocapture(2);
 
 #define __HAVE_ARCH_STRNCAT
-extern char *strncat(char *dest, const char *src, size_t count);
+extern char *strncat(char *dest, const char *src, size_t count) __nocapture(2);
 
 #define __HAVE_ARCH_STRCMP
-extern int strcmp(const char *cs, const char *ct);
+extern int strcmp(const char *cs, const char *ct) __nocapture(1, 2);
 
 #define __HAVE_ARCH_STRNCMP
-extern int strncmp(const char *cs, const char *ct, size_t count);
+extern int strncmp(const char *cs, const char *ct, size_t count) __nocapture(1, 2);
 
 #define __HAVE_ARCH_STRCHR
-extern char *strchr(const char *s, int c);
+extern char *strchr(const char *s, int c) __nocapture(1);
 
 #define __HAVE_ARCH_STRLEN
 extern size_t strlen(const char *s);
@@ -197,12 +197,12 @@ static inline void *__memcpy3d(void *to, const void *from, size_t len)
 #endif
 
 #define __HAVE_ARCH_MEMMOVE
-void *memmove(void *dest, const void *src, size_t n);
+void *memmove(void *dest, const void *src, size_t n) __nocapture(2);
 
 #define memcmp __builtin_memcmp
 
 #define __HAVE_ARCH_MEMCHR
-extern void *memchr(const void *cs, int c, size_t count);
+extern void *memchr(const void *cs, int c, size_t count) __nocapture(1);
 
 static inline void *__memset_generic(void *s, char c, size_t count)
 {
@@ -247,7 +247,7 @@ extern size_t strnlen(const char *s, size_t count);
 /* end of additional stuff */
 
 #define __HAVE_ARCH_STRSTR
-extern char *strstr(const char *cs, const char *ct);
+extern char *strstr(const char *cs, const char *ct) __nocapture(1, 2);
 
 /*
  * This looks horribly ugly, but the compiler can optimize it totally,
diff --git a/arch/x86/include/asm/string_64.h b/arch/x86/include/asm/string_64.h
index 90dbbd9..04e8caa 100644
--- a/arch/x86/include/asm/string_64.h
+++ b/arch/x86/include/asm/string_64.h
@@ -27,8 +27,8 @@ static __always_inline void *__inline_memcpy(void *to, const void *from, size_t
    function. */
 
 #define __HAVE_ARCH_MEMCPY 1
-extern void *memcpy(void *to, const void *from, size_t len);
-extern void *__memcpy(void *to, const void *from, size_t len);
+extern void *memcpy(void *to, const void *from, size_t len) __nocapture(2);
+extern void *__memcpy(void *to, const void *from, size_t len) __nocapture(2);
 
 #ifndef CONFIG_KMEMCHECK
 #if (__GNUC__ == 4 && __GNUC_MINOR__ < 3) || __GNUC__ < 4
@@ -56,14 +56,14 @@ void *memset(void *s, int c, size_t n);
 void *__memset(void *s, int c, size_t n);
 
 #define __HAVE_ARCH_MEMMOVE
-void *memmove(void *dest, const void *src, size_t count);
-void *__memmove(void *dest, const void *src, size_t count);
+void *memmove(void *dest, const void *src, size_t count) __nocapture(2);
+void *__memmove(void *dest, const void *src, size_t count) __nocapture(2);
 
-int memcmp(const void *cs, const void *ct, size_t count);
+int memcmp(const void *cs, const void *ct, size_t count) __nocapture(1, 2);
 size_t strlen(const char *s);
-char *strcpy(char *dest, const char *src);
-char *strcat(char *dest, const char *src);
-int strcmp(const char *cs, const char *ct);
+char *strcpy(char *dest, const char *src) __nocapture(2);
+char *strcat(char *dest, const char *src) __nocapture(2);
+int strcmp(const char *cs, const char *ct) __nocapture(1, 2);
 
 #if defined(CONFIG_KASAN) && !defined(__SANITIZE_ADDRESS__)
 
diff --git a/arch/x86/include/asm/switch_to.h b/arch/x86/include/asm/switch_to.h
index 751bf4b..a1278b5 100644
--- a/arch/x86/include/asm/switch_to.h
+++ b/arch/x86/include/asm/switch_to.h
@@ -112,7 +112,7 @@ do {									\
 	     "call __switch_to\n\t"					  \
 	     "movq "__percpu_arg([current_task])",%%rsi\n\t"		  \
 	     __switch_canary						  \
-	     "movq %P[thread_info](%%rsi),%%r8\n\t"			  \
+	     "movq "__percpu_arg([thread_info])",%%r8\n\t"		  \
 	     "movq %%rax,%%rdi\n\t" 					  \
 	     "testl  %[_tif_fork],%P[ti_flags](%%r8)\n\t"		  \
 	     "jnz   ret_from_fork\n\t"					  \
@@ -123,7 +123,7 @@ do {									\
 	       [threadrsp] "i" (offsetof(struct task_struct, thread.sp)), \
 	       [ti_flags] "i" (offsetof(struct thread_info, flags)),	  \
 	       [_tif_fork] "i" (_TIF_FORK),			  	  \
-	       [thread_info] "i" (offsetof(struct task_struct, stack)),   \
+	       [thread_info] "m" (current_tinfo),			  \
 	       [current_task] "m" (current_task)			  \
 	       __switch_canary_iparam					  \
 	     : "memory", "cc" __EXTRA_CLOBBER)
diff --git a/arch/x86/include/asm/sys_ia32.h b/arch/x86/include/asm/sys_ia32.h
index 82c34ee..940fa40 100644
--- a/arch/x86/include/asm/sys_ia32.h
+++ b/arch/x86/include/asm/sys_ia32.h
@@ -20,8 +20,8 @@
 #include <asm/ia32.h>
 
 /* ia32/sys_ia32.c */
-asmlinkage long sys32_truncate64(const char __user *, unsigned long, unsigned long);
-asmlinkage long sys32_ftruncate64(unsigned int, unsigned long, unsigned long);
+asmlinkage long sys32_truncate64(const char __user *, unsigned int, unsigned int);
+asmlinkage long sys32_ftruncate64(unsigned int, unsigned int, unsigned int);
 
 asmlinkage long sys32_stat64(const char __user *, struct stat64 __user *);
 asmlinkage long sys32_lstat64(const char __user *, struct stat64 __user *);
@@ -42,7 +42,7 @@ long sys32_vm86_warning(void);
 asmlinkage ssize_t sys32_readahead(int, unsigned, unsigned, size_t);
 asmlinkage long sys32_sync_file_range(int, unsigned, unsigned,
 				      unsigned, unsigned, int);
-asmlinkage long sys32_fadvise64(int, unsigned, unsigned, size_t, int);
+asmlinkage long sys32_fadvise64(int, unsigned, unsigned, int, int);
 asmlinkage long sys32_fallocate(int, int, unsigned,
 				unsigned, unsigned, unsigned);
 
diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
index ffae84d..20997c3 100644
--- a/arch/x86/include/asm/thread_info.h
+++ b/arch/x86/include/asm/thread_info.h
@@ -39,7 +39,7 @@
 #  define TOP_OF_KERNEL_STACK_PADDING 8
 # endif
 #else
-# define TOP_OF_KERNEL_STACK_PADDING 0
+# define TOP_OF_KERNEL_STACK_PADDING 16
 #endif
 
 /*
@@ -53,24 +53,23 @@ struct task_struct;
 #include <linux/atomic.h>
 
 struct thread_info {
-	struct task_struct	*task;		/* main task structure */
 	__u32			flags;		/* low level flags */
 	__u32			status;		/* thread synchronous flags */
 	__u32			cpu;		/* current CPU */
 	mm_segment_t		addr_limit;
+	unsigned long		lowest_stack;
 	unsigned int		sig_on_uaccess_error:1;
 	unsigned int		uaccess_err:1;	/* uaccess failed */
 };
 
-#define INIT_THREAD_INFO(tsk)			\
+#define INIT_THREAD_INFO			\
 {						\
-	.task		= &tsk,			\
 	.flags		= 0,			\
 	.cpu		= 0,			\
 	.addr_limit	= KERNEL_DS,		\
 }
 
-#define init_thread_info	(init_thread_union.thread_info)
+#define init_thread_info	(init_thread_union.stack)
 #define init_stack		(init_thread_union.stack)
 
 #else /* !__ASSEMBLY__ */
@@ -110,6 +109,7 @@ struct thread_info {
 #define TIF_SYSCALL_TRACEPOINT	28	/* syscall tracepoint instrumentation */
 #define TIF_ADDR32		29	/* 32-bit address space on 64 bits */
 #define TIF_X32			30	/* 32-bit native x86-64 binary */
+#define TIF_GRSEC_SETXID	31	/* update credentials on syscall entry/exit */
 
 #define _TIF_SYSCALL_TRACE	(1 << TIF_SYSCALL_TRACE)
 #define _TIF_NOTIFY_RESUME	(1 << TIF_NOTIFY_RESUME)
@@ -133,6 +133,7 @@ struct thread_info {
 #define _TIF_SYSCALL_TRACEPOINT	(1 << TIF_SYSCALL_TRACEPOINT)
 #define _TIF_ADDR32		(1 << TIF_ADDR32)
 #define _TIF_X32		(1 << TIF_X32)
+#define _TIF_GRSEC_SETXID	(1 << TIF_GRSEC_SETXID)
 
 /*
  * work to do in syscall_trace_enter().  Also includes TIF_NOHZ for
@@ -141,12 +142,12 @@ struct thread_info {
 #define _TIF_WORK_SYSCALL_ENTRY	\
 	(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_EMU | _TIF_SYSCALL_AUDIT |	\
 	 _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT |	\
-	 _TIF_NOHZ)
+	 _TIF_NOHZ | _TIF_GRSEC_SETXID)
 
 /* work to do on any return to user space */
 #define _TIF_ALLWORK_MASK						\
 	((0x0000FFFF & ~_TIF_SECCOMP) | _TIF_SYSCALL_TRACEPOINT |	\
-	_TIF_NOHZ)
+	_TIF_NOHZ | _TIF_GRSEC_SETXID)
 
 /* flags to check in __switch_to() */
 #define _TIF_WORK_CTXSW							\
@@ -164,9 +165,11 @@ struct thread_info {
  */
 #ifndef __ASSEMBLY__
 
+DECLARE_PER_CPU(struct thread_info *, current_tinfo);
+
 static inline struct thread_info *current_thread_info(void)
 {
-	return (struct thread_info *)(current_top_of_stack() - THREAD_SIZE);
+	return this_cpu_read_stable(current_tinfo);
 }
 
 static inline unsigned long current_stack_pointer(void)
@@ -182,41 +185,9 @@ static inline unsigned long current_stack_pointer(void)
 
 #else /* !__ASSEMBLY__ */
 
-#ifdef CONFIG_X86_64
-# define cpu_current_top_of_stack (cpu_tss + TSS_sp0)
-#endif
-
 /* Load thread_info address into "reg" */
 #define GET_THREAD_INFO(reg) \
-	_ASM_MOV PER_CPU_VAR(cpu_current_top_of_stack),reg ; \
-	_ASM_SUB $(THREAD_SIZE),reg ;
-
-/*
- * ASM operand which evaluates to a 'thread_info' address of
- * the current task, if it is known that "reg" is exactly "off"
- * bytes below the top of the stack currently.
- *
- * ( The kernel stack's size is known at build time, it is usually
- *   2 or 4 pages, and the bottom  of the kernel stack contains
- *   the thread_info structure. So to access the thread_info very
- *   quickly from assembly code we can calculate down from the
- *   top of the kernel stack to the bottom, using constant,
- *   build-time calculations only. )
- *
- * For example, to fetch the current thread_info->flags value into %eax
- * on x86-64 defconfig kernels, in syscall entry code where RSP is
- * currently at exactly SIZEOF_PTREGS bytes away from the top of the
- * stack:
- *
- *      mov ASM_THREAD_INFO(TI_flags, %rsp, SIZEOF_PTREGS), %eax
- *
- * will translate to:
- *
- *      8b 84 24 b8 c0 ff ff      mov    -0x3f48(%rsp), %eax
- *
- * which is below the current RSP by almost 16K.
- */
-#define ASM_THREAD_INFO(field, reg, off) ((field)+(off)-THREAD_SIZE)(reg)
+	_ASM_MOV PER_CPU_VAR(current_tinfo),reg ;
 
 #endif
 
@@ -279,6 +250,13 @@ static inline bool is_ia32_task(void)
 extern void arch_task_cache_init(void);
 extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src);
 extern void arch_release_task_struct(struct task_struct *tsk);
+
+#define __HAVE_THREAD_FUNCTIONS
+#define task_thread_info(task)	(&(task)->tinfo)
+#define task_stack_page(task)	((task)->stack)
+#define setup_thread_stack(p, org) do {} while (0)
+#define end_of_stack(p) ((unsigned long *)task_stack_page(p) + 1)
+
 #endif	/* !__ASSEMBLY__ */
 
 #endif /* _ASM_X86_THREAD_INFO_H */
diff --git a/arch/x86/include/asm/tlbflush.h b/arch/x86/include/asm/tlbflush.h
index 1fde8d5..de33497 100644
--- a/arch/x86/include/asm/tlbflush.h
+++ b/arch/x86/include/asm/tlbflush.h
@@ -135,18 +135,44 @@ static inline void cr4_set_bits_and_update_boot(unsigned long mask)
 
 static inline void __native_flush_tlb(void)
 {
+	if (static_cpu_has(X86_FEATURE_INVPCID)) {
+		u64 descriptor[2];
+
+		descriptor[0] = PCID_KERNEL;
+		asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_ALL_NONGLOBAL) : "memory");
+		return;
+	}
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+	if (static_cpu_has(X86_FEATURE_PCIDUDEREF)) {
+		unsigned int cpu = raw_get_cpu();
+
+		native_write_cr3(__pa(get_cpu_pgd(cpu, user)) | PCID_USER);
+		native_write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL);
+		raw_put_cpu_no_resched();
+		return;
+	}
+#endif
+
 	native_write_cr3(native_read_cr3());
 }
 
 static inline void __native_flush_tlb_global_irq_disabled(void)
 {
-	unsigned long cr4;
+	if (static_cpu_has(X86_FEATURE_INVPCID)) {
+		u64 descriptor[2];
 
-	cr4 = this_cpu_read(cpu_tlbstate.cr4);
-	/* clear PGE */
-	native_write_cr4(cr4 & ~X86_CR4_PGE);
-	/* write old PGE again and flush TLBs */
-	native_write_cr4(cr4);
+		descriptor[0] = PCID_KERNEL;
+		asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_ALL_GLOBAL) : "memory");
+	} else {
+		unsigned long cr4;
+
+		cr4 = this_cpu_read(cpu_tlbstate.cr4);
+		/* clear PGE */
+		native_write_cr4(cr4 & ~X86_CR4_PGE);
+		/* write old PGE again and flush TLBs */
+		native_write_cr4(cr4);
+	}
 }
 
 static inline void __native_flush_tlb_global(void)
@@ -176,6 +202,43 @@ static inline void __native_flush_tlb_global(void)
 
 static inline void __native_flush_tlb_single(unsigned long addr)
 {
+	if (static_cpu_has(X86_FEATURE_INVPCID)) {
+		u64 descriptor[2];
+
+		descriptor[0] = PCID_KERNEL;
+		descriptor[1] = addr;
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+		if (static_cpu_has(X86_FEATURE_PCIDUDEREF)) {
+			if (!static_cpu_has(X86_FEATURE_STRONGUDEREF) || addr >= TASK_SIZE_MAX) {
+				if (addr < TASK_SIZE_MAX)
+					descriptor[1] += pax_user_shadow_base;
+				asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_SINGLE_ADDRESS) : "memory");
+			}
+
+			descriptor[0] = PCID_USER;
+			descriptor[1] = addr;
+		}
+#endif
+
+		asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_SINGLE_ADDRESS) : "memory");
+		return;
+	}
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+	if (static_cpu_has(X86_FEATURE_PCIDUDEREF)) {
+		unsigned int cpu = raw_get_cpu();
+
+		native_write_cr3(__pa(get_cpu_pgd(cpu, user)) | PCID_USER | PCID_NOFLUSH);
+		asm volatile("invlpg (%0)" ::"r" (addr) : "memory");
+		native_write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL | PCID_NOFLUSH);
+		raw_put_cpu_no_resched();
+
+		if (!static_cpu_has(X86_FEATURE_STRONGUDEREF) && addr < TASK_SIZE_MAX)
+			addr += pax_user_shadow_base;
+	}
+#endif
+
 	asm volatile("invlpg (%0)" ::"r" (addr) : "memory");
 }
 
diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h
index c3496619..3f3a7dc 100644
--- a/arch/x86/include/asm/traps.h
+++ b/arch/x86/include/asm/traps.h
@@ -10,7 +10,7 @@
 #define dotraplinkage __visible
 
 asmlinkage void divide_error(void);
-asmlinkage void debug(void);
+asmlinkage void int1(void);
 asmlinkage void nmi(void);
 asmlinkage void int3(void);
 asmlinkage void xen_debug(void);
@@ -107,7 +107,7 @@ extern int panic_on_unrecovered_nmi;
 
 void math_emulate(struct math_emu_info *);
 #ifndef CONFIG_X86_32
-asmlinkage void smp_thermal_interrupt(void);
+asmlinkage void smp_thermal_interrupt(struct pt_regs *regs);
 asmlinkage void smp_threshold_interrupt(void);
 asmlinkage void smp_deferred_error_interrupt(void);
 #endif
diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
index 2e7513d..73d9d20 100644
--- a/arch/x86/include/asm/uaccess.h
+++ b/arch/x86/include/asm/uaccess.h
@@ -7,6 +7,7 @@
 #include <linux/compiler.h>
 #include <linux/thread_info.h>
 #include <linux/string.h>
+#include <linux/spinlock.h>
 #include <asm/asm.h>
 #include <asm/page.h>
 #include <asm/smap.h>
@@ -29,7 +30,12 @@
 
 #define get_ds()	(KERNEL_DS)
 #define get_fs()	(current_thread_info()->addr_limit)
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
+void __set_fs(mm_segment_t x);
+void set_fs(mm_segment_t x);
+#else
 #define set_fs(x)	(current_thread_info()->addr_limit = (x))
+#endif
 
 #define segment_eq(a, b)	((a).seg == (b).seg)
 
@@ -86,8 +92,36 @@ static inline bool __chk_range_not_ok(unsigned long addr, unsigned long size, un
  * checks that the pointer is in the user space range - after calling
  * this function, memory access functions may still return -EFAULT.
  */
-#define access_ok(type, addr, size) \
-	likely(!__range_not_ok(addr, size, user_addr_max()))
+extern int _cond_resched(void);
+#define access_ok_noprefault(type, addr, size) (likely(!__range_not_ok(addr, size, user_addr_max())))
+#define access_ok(type, addr, size)					\
+({									\
+	unsigned long __size = size;					\
+	unsigned long __addr = (unsigned long)addr;			\
+	bool __ret_ao = __range_not_ok(__addr, __size, user_addr_max()) == 0;\
+	if (__ret_ao && __size) {					\
+		unsigned long __addr_ao = __addr & PAGE_MASK;		\
+		unsigned long __end_ao = __addr + __size - 1;		\
+		if (unlikely((__end_ao ^ __addr_ao) & PAGE_MASK)) {	\
+			while (__addr_ao <= __end_ao) {			\
+				char __c_ao;				\
+				__addr_ao += PAGE_SIZE;			\
+				if (__size > PAGE_SIZE)			\
+					_cond_resched();		\
+				if (__get_user(__c_ao, (char __user *)__addr))	\
+					break;				\
+				if ((type) != VERIFY_WRITE) {		\
+					__addr = __addr_ao;		\
+					continue;			\
+				}					\
+				if (__put_user(__c_ao, (char __user *)__addr))	\
+					break;				\
+				__addr = __addr_ao;			\
+			}						\
+		}							\
+	}								\
+	__ret_ao;							\
+})
 
 /*
  * The exception table consists of triples of addresses relative to the
@@ -145,11 +179,13 @@ extern int __get_user_bad(void);
 #define __uaccess_end()   clac()
 
 /*
- * This is a type: either unsigned long, if the argument fits into
- * that type, or otherwise unsigned long long.
+ * This is a type: either (un)signed int, if the argument fits into
+ * that type, or otherwise (un)signed long long.
  */
 #define __inttype(x) \
-__typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
+__typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0U),		\
+	__builtin_choose_expr(__type_is_unsigned(__typeof__(x)), 0ULL, 0LL),\
+	__builtin_choose_expr(__type_is_unsigned(__typeof__(x)), 0U, 0)))
 
 /**
  * get_user: - Get a simple variable from user space.
@@ -189,10 +225,12 @@ __typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
 	register void *__sp asm(_ASM_SP);				\
 	__chk_user_ptr(ptr);						\
 	might_fault();							\
+	pax_open_userland();						\
 	asm volatile("call __get_user_%P4"				\
 		     : "=a" (__ret_gu), "=r" (__val_gu), "+r" (__sp)	\
 		     : "0" (ptr), "i" (sizeof(*(ptr))));		\
 	(x) = (__force __typeof__(*(ptr))) __val_gu;			\
+	pax_close_userland();						\
 	__builtin_expect(__ret_gu, 0);					\
 })
 
@@ -200,13 +238,21 @@ __typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
 	asm volatile("call __put_user_" #size : "=a" (__ret_pu)	\
 		     : "0" ((typeof(*(ptr)))(x)), "c" (ptr) : "ebx")
 
-
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
+#define __copyuser_seg "gs;"
+#define __COPYUSER_SET_ES "pushl %%gs; popl %%es\n"
+#define __COPYUSER_RESTORE_ES "pushl %%ss; popl %%es\n"
+#else
+#define __copyuser_seg
+#define __COPYUSER_SET_ES
+#define __COPYUSER_RESTORE_ES
+#endif
 
 #ifdef CONFIG_X86_32
 #define __put_user_asm_u64(x, addr, err, errret)			\
 	asm volatile("\n"						\
-		     "1:	movl %%eax,0(%2)\n"			\
-		     "2:	movl %%edx,4(%2)\n"			\
+		     "1:	"__copyuser_seg"movl %%eax,0(%2)\n"	\
+		     "2:	"__copyuser_seg"movl %%edx,4(%2)\n"	\
 		     "3:"						\
 		     ".section .fixup,\"ax\"\n"				\
 		     "4:	movl %3,%0\n"				\
@@ -219,8 +265,8 @@ __typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
 
 #define __put_user_asm_ex_u64(x, addr)					\
 	asm volatile("\n"						\
-		     "1:	movl %%eax,0(%1)\n"			\
-		     "2:	movl %%edx,4(%1)\n"			\
+		     "1:	"__copyuser_seg"movl %%eax,0(%1)\n"	\
+		     "2:	"__copyuser_seg"movl %%edx,4(%1)\n"	\
 		     "3:"						\
 		     _ASM_EXTABLE_EX(1b, 2b)				\
 		     _ASM_EXTABLE_EX(2b, 3b)				\
@@ -268,10 +314,11 @@ extern void __put_user_8(void);
 #define put_user(x, ptr)					\
 ({								\
 	int __ret_pu;						\
-	__typeof__(*(ptr)) __pu_val;				\
+	__inttype(*(ptr)) __pu_val;				\
 	__chk_user_ptr(ptr);					\
 	might_fault();						\
-	__pu_val = x;						\
+	__pu_val = (__inttype(*(ptr)))(x);			\
+	pax_open_userland();					\
 	switch (sizeof(*(ptr))) {				\
 	case 1:							\
 		__put_user_x(1, __pu_val, ptr, __ret_pu);	\
@@ -289,6 +336,7 @@ extern void __put_user_8(void);
 		__put_user_x(X, __pu_val, ptr, __ret_pu);	\
 		break;						\
 	}							\
+	pax_close_userland();					\
 	__builtin_expect(__ret_pu, 0);				\
 })
 
@@ -356,10 +404,10 @@ do {									\
 	__chk_user_ptr(ptr);						\
 	switch (size) {							\
 	case 1:								\
-		__get_user_asm(x, ptr, retval, "b", "b", "=q", errret);	\
+		__get_user_asm(x, ptr, retval, "zbl", "k", "=r", errret);\
 		break;							\
 	case 2:								\
-		__get_user_asm(x, ptr, retval, "w", "w", "=r", errret);	\
+		__get_user_asm(x, ptr, retval, "zwl", "k", "=r", errret);\
 		break;							\
 	case 4:								\
 		__get_user_asm(x, ptr, retval, "l", "k", "=r", errret);	\
@@ -373,17 +421,21 @@ do {									\
 } while (0)
 
 #define __get_user_asm(x, addr, err, itype, rtype, ltype, errret)	\
+do {									\
+	pax_open_userland();						\
 	asm volatile("\n"						\
-		     "1:	mov"itype" %2,%"rtype"1\n"		\
+		     "1:	"__copyuser_seg"mov"itype" %2,%"rtype"1\n"\
 		     "2:\n"						\
 		     ".section .fixup,\"ax\"\n"				\
 		     "3:	mov %3,%0\n"				\
-		     "	xor"itype" %"rtype"1,%"rtype"1\n"		\
+		     "	xorl %k1,%k1\n"					\
 		     "	jmp 2b\n"					\
 		     ".previous\n"					\
 		     _ASM_EXTABLE(1b, 3b)				\
-		     : "=r" (err), ltype(x)				\
-		     : "m" (__m(addr)), "i" (errret), "0" (err))
+		     : "=r" (err), ltype (x)				\
+		     : "m" (__m(addr)), "i" (errret), "0" (err));	\
+	pax_close_userland();						\
+} while (0)
 
 /*
  * This doesn't do __uaccess_begin/end - the exception handling
@@ -394,10 +446,10 @@ do {									\
 	__chk_user_ptr(ptr);						\
 	switch (size) {							\
 	case 1:								\
-		__get_user_asm_ex(x, ptr, "b", "b", "=q");		\
+		__get_user_asm_ex(x, ptr, "zbl", "k", "=r");		\
 		break;							\
 	case 2:								\
-		__get_user_asm_ex(x, ptr, "w", "w", "=r");		\
+		__get_user_asm_ex(x, ptr, "zwl", "k", "=r");		\
 		break;							\
 	case 4:								\
 		__get_user_asm_ex(x, ptr, "l", "k", "=r");		\
@@ -411,7 +463,7 @@ do {									\
 } while (0)
 
 #define __get_user_asm_ex(x, addr, itype, rtype, ltype)			\
-	asm volatile("1:	mov"itype" %1,%"rtype"0\n"		\
+	asm volatile("1:	"__copyuser_seg"mov"itype" %1,%"rtype"0\n"\
 		     "2:\n"						\
 		     _ASM_EXTABLE_EX(1b, 2b)				\
 		     : ltype(x) : "m" (__m(addr)))
@@ -432,13 +484,24 @@ do {									\
 	__uaccess_begin();						\
 	__get_user_size(__gu_val, (ptr), (size), __gu_err, -EFAULT);	\
 	__uaccess_end();						\
-	(x) = (__force __typeof__(*(ptr)))__gu_val;			\
+	(x) = (__typeof__(*(ptr)))__gu_val;				\
 	__builtin_expect(__gu_err, 0);					\
 })
 
 /* FIXME: this hack is definitely wrong -AK */
 struct __large_struct { unsigned long buf[100]; };
-#define __m(x) (*(struct __large_struct __user *)(x))
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+#define ____m(x)					\
+({							\
+	unsigned long ____x = (unsigned long)(x);	\
+	if (____x < pax_user_shadow_base)		\
+		____x += pax_user_shadow_base;		\
+	(typeof(x))____x;				\
+})
+#else
+#define ____m(x) (x)
+#endif
+#define __m(x) (*(struct __large_struct __user *)____m(x))
 
 /*
  * Tell gcc we read from memory instead of writing: this is because
@@ -446,8 +509,10 @@ struct __large_struct { unsigned long buf[100]; };
  * aliasing issues.
  */
 #define __put_user_asm(x, addr, err, itype, rtype, ltype, errret)	\
+do {									\
+	pax_open_userland();						\
 	asm volatile("\n"						\
-		     "1:	mov"itype" %"rtype"1,%2\n"		\
+		     "1:	"__copyuser_seg"mov"itype" %"rtype"1,%2\n"\
 		     "2:\n"						\
 		     ".section .fixup,\"ax\"\n"				\
 		     "3:	mov %3,%0\n"				\
@@ -455,10 +520,12 @@ struct __large_struct { unsigned long buf[100]; };
 		     ".previous\n"					\
 		     _ASM_EXTABLE(1b, 3b)				\
 		     : "=r"(err)					\
-		     : ltype(x), "m" (__m(addr)), "i" (errret), "0" (err))
+		     : ltype (x), "m" (__m(addr)), "i" (errret), "0" (err));\
+	pax_close_userland();						\
+} while (0)
 
 #define __put_user_asm_ex(x, addr, itype, rtype, ltype)			\
-	asm volatile("1:	mov"itype" %"rtype"0,%1\n"		\
+	asm volatile("1:	"__copyuser_seg"mov"itype" %"rtype"0,%1\n"\
 		     "2:\n"						\
 		     _ASM_EXTABLE_EX(1b, 2b)				\
 		     : : ltype(x), "m" (__m(addr)))
@@ -468,11 +535,13 @@ struct __large_struct { unsigned long buf[100]; };
  */
 #define uaccess_try	do {						\
 	current_thread_info()->uaccess_err = 0;				\
+	pax_open_userland();						\
 	__uaccess_begin();						\
 	barrier();
 
 #define uaccess_catch(err)						\
 	__uaccess_end();						\
+	pax_close_userland();						\
 	(err) |= (current_thread_info()->uaccess_err ? -EFAULT : 0);	\
 } while (0)
 
@@ -498,8 +567,12 @@ struct __large_struct { unsigned long buf[100]; };
  * On error, the variable @x is set to zero.
  */
 
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+#define __get_user(x, ptr)	get_user((x), (ptr))
+#else
 #define __get_user(x, ptr)						\
 	__get_user_nocheck((x), (ptr), sizeof(*(ptr)))
+#endif
 
 /**
  * __put_user: - Write a simple value into user space, with less checking.
@@ -522,8 +595,12 @@ struct __large_struct { unsigned long buf[100]; };
  * Returns zero on success, or -EFAULT on error.
  */
 
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+#define __put_user(x, ptr)	put_user((x), (ptr))
+#else
 #define __put_user(x, ptr)						\
 	__put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
+#endif
 
 #define __get_user_unaligned __get_user
 #define __put_user_unaligned __put_user
@@ -541,7 +618,7 @@ struct __large_struct { unsigned long buf[100]; };
 #define get_user_ex(x, ptr)	do {					\
 	unsigned long __gue_val;					\
 	__get_user_size_ex((__gue_val), (ptr), (sizeof(*(ptr))));	\
-	(x) = (__force __typeof__(*(ptr)))__gue_val;			\
+	(x) = (__typeof__(*(ptr)))__gue_val;				\
 } while (0)
 
 #define put_user_try		uaccess_try
@@ -559,7 +636,7 @@ extern __must_check long strlen_user(const char __user *str);
 extern __must_check long strnlen_user(const char __user *str, long n);
 
 unsigned long __must_check clear_user(void __user *mem, unsigned long len);
-unsigned long __must_check __clear_user(void __user *mem, unsigned long len);
+unsigned long __must_check __clear_user(void __user *mem, unsigned long len) __size_overflow(2);
 
 extern void __cmpxchg_wrong_size(void)
 	__compiletime_error("Bad argument size for cmpxchg");
@@ -567,22 +644,23 @@ extern void __cmpxchg_wrong_size(void)
 #define __user_atomic_cmpxchg_inatomic(uval, ptr, old, new, size)	\
 ({									\
 	int __ret = 0;							\
-	__typeof__(ptr) __uval = (uval);				\
-	__typeof__(*(ptr)) __old = (old);				\
-	__typeof__(*(ptr)) __new = (new);				\
+	__typeof__(uval) __uval = (uval);				\
+	__typeof__(*(uval)) __old = (old);				\
+	__typeof__(*(uval)) __new = (new);				\
+	pax_open_userland();						\
 	__uaccess_begin();						\
 	switch (size) {							\
 	case 1:								\
 	{								\
 		asm volatile("\n"					\
-			"1:\t" LOCK_PREFIX "cmpxchgb %4, %2\n"		\
+			"1:\t" LOCK_PREFIX __copyuser_seg"cmpxchgb %4, %2\n"\
 			"2:\n"						\
 			"\t.section .fixup, \"ax\"\n"			\
 			"3:\tmov     %3, %0\n"				\
 			"\tjmp     2b\n"				\
 			"\t.previous\n"					\
 			_ASM_EXTABLE(1b, 3b)				\
-			: "+r" (__ret), "=a" (__old), "+m" (*(ptr))	\
+			: "+r" (__ret), "=a" (__old), "+m" (*____m(ptr))\
 			: "i" (-EFAULT), "q" (__new), "1" (__old)	\
 			: "memory"					\
 		);							\
@@ -591,14 +669,14 @@ extern void __cmpxchg_wrong_size(void)
 	case 2:								\
 	{								\
 		asm volatile("\n"					\
-			"1:\t" LOCK_PREFIX "cmpxchgw %4, %2\n"		\
+			"1:\t" LOCK_PREFIX __copyuser_seg"cmpxchgw %4, %2\n"\
 			"2:\n"						\
 			"\t.section .fixup, \"ax\"\n"			\
 			"3:\tmov     %3, %0\n"				\
 			"\tjmp     2b\n"				\
 			"\t.previous\n"					\
 			_ASM_EXTABLE(1b, 3b)				\
-			: "+r" (__ret), "=a" (__old), "+m" (*(ptr))	\
+			: "+r" (__ret), "=a" (__old), "+m" (*____m(ptr))\
 			: "i" (-EFAULT), "r" (__new), "1" (__old)	\
 			: "memory"					\
 		);							\
@@ -607,14 +685,14 @@ extern void __cmpxchg_wrong_size(void)
 	case 4:								\
 	{								\
 		asm volatile("\n"					\
-			"1:\t" LOCK_PREFIX "cmpxchgl %4, %2\n"		\
+			"1:\t" LOCK_PREFIX __copyuser_seg"cmpxchgl %4, %2\n"\
 			"2:\n"						\
 			"\t.section .fixup, \"ax\"\n"			\
 			"3:\tmov     %3, %0\n"				\
 			"\tjmp     2b\n"				\
 			"\t.previous\n"					\
 			_ASM_EXTABLE(1b, 3b)				\
-			: "+r" (__ret), "=a" (__old), "+m" (*(ptr))	\
+			: "+r" (__ret), "=a" (__old), "+m" (*____m(ptr))\
 			: "i" (-EFAULT), "r" (__new), "1" (__old)	\
 			: "memory"					\
 		);							\
@@ -626,14 +704,14 @@ extern void __cmpxchg_wrong_size(void)
 			__cmpxchg_wrong_size();				\
 									\
 		asm volatile("\n"					\
-			"1:\t" LOCK_PREFIX "cmpxchgq %4, %2\n"		\
+			"1:\t" LOCK_PREFIX __copyuser_seg"cmpxchgq %4, %2\n"\
 			"2:\n"						\
 			"\t.section .fixup, \"ax\"\n"			\
 			"3:\tmov     %3, %0\n"				\
 			"\tjmp     2b\n"				\
 			"\t.previous\n"					\
 			_ASM_EXTABLE(1b, 3b)				\
-			: "+r" (__ret), "=a" (__old), "+m" (*(ptr))	\
+			: "+r" (__ret), "=a" (__old), "+m" (*____m(ptr))\
 			: "i" (-EFAULT), "r" (__new), "1" (__old)	\
 			: "memory"					\
 		);							\
@@ -643,6 +721,7 @@ extern void __cmpxchg_wrong_size(void)
 		__cmpxchg_wrong_size();					\
 	}								\
 	__uaccess_end();						\
+	pax_close_userland();						\
 	*__uval = __old;						\
 	__ret;								\
 })
@@ -666,17 +745,6 @@ extern struct movsl_mask {
 
 #define ARCH_HAS_NOCACHE_UACCESS 1
 
-#ifdef CONFIG_X86_32
-# include <asm/uaccess_32.h>
-#else
-# include <asm/uaccess_64.h>
-#endif
-
-unsigned long __must_check _copy_from_user(void *to, const void __user *from,
-					   unsigned n);
-unsigned long __must_check _copy_to_user(void __user *to, const void *from,
-					 unsigned n);
-
 #ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
 # define copy_user_diag __compiletime_error
 #else
@@ -686,7 +754,7 @@ unsigned long __must_check _copy_to_user(void __user *to, const void *from,
 extern void copy_user_diag("copy_from_user() buffer size is too small")
 copy_from_user_overflow(void);
 extern void copy_user_diag("copy_to_user() buffer size is too small")
-copy_to_user_overflow(void) __asm__("copy_from_user_overflow");
+copy_to_user_overflow(void);
 
 #undef copy_user_diag
 
@@ -699,7 +767,7 @@ __copy_from_user_overflow(void) __asm__("copy_from_user_overflow");
 
 extern void
 __compiletime_warning("copy_to_user() buffer size is not provably correct")
-__copy_to_user_overflow(void) __asm__("copy_from_user_overflow");
+__copy_to_user_overflow(void) __asm__("copy_to_user_overflow");
 #define __copy_to_user_overflow(size, count) __copy_to_user_overflow()
 
 #else
@@ -714,10 +782,16 @@ __copy_from_user_overflow(int size, unsigned long count)
 
 #endif
 
+#ifdef CONFIG_X86_32
+# include <asm/uaccess_32.h>
+#else
+# include <asm/uaccess_64.h>
+#endif
+
 static inline unsigned long __must_check
 copy_from_user(void *to, const void __user *from, unsigned long n)
 {
-	int sz = __compiletime_object_size(to);
+	size_t sz = __compiletime_object_size(to);
 
 	might_fault();
 
@@ -739,12 +813,15 @@ copy_from_user(void *to, const void __user *from, unsigned long n)
 	 * case, and do only runtime checking for non-constant sizes.
 	 */
 
-	if (likely(sz < 0 || sz >= n))
-		n = _copy_from_user(to, from, n);
-	else if(__builtin_constant_p(n))
-		copy_from_user_overflow();
-	else
-		__copy_from_user_overflow(sz, n);
+	if (likely(sz != (size_t)-1  && sz < n)) {
+		 if(__builtin_constant_p(n))
+			copy_from_user_overflow();
+		else
+			__copy_from_user_overflow(sz, n);
+	} else if (access_ok(VERIFY_READ, from, n))
+		n = __copy_from_user(to, from, n);
+	else if ((long)n > 0)
+		memset(to, 0, n);
 
 	return n;
 }
@@ -752,17 +829,18 @@ copy_from_user(void *to, const void __user *from, unsigned long n)
 static inline unsigned long __must_check
 copy_to_user(void __user *to, const void *from, unsigned long n)
 {
-	int sz = __compiletime_object_size(from);
+	size_t sz = __compiletime_object_size(from);
 
 	might_fault();
 
 	/* See the comment in copy_from_user() above. */
-	if (likely(sz < 0 || sz >= n))
-		n = _copy_to_user(to, from, n);
-	else if(__builtin_constant_p(n))
-		copy_to_user_overflow();
-	else
-		__copy_to_user_overflow(sz, n);
+	if (likely(sz != (size_t)-1  && sz < n)) {
+		 if(__builtin_constant_p(n))
+			copy_to_user_overflow();
+		else
+			__copy_to_user_overflow(sz, n);
+	} else if (access_ok(VERIFY_WRITE, to, n))
+		n = __copy_to_user(to, from, n);
 
 	return n;
 }
diff --git a/arch/x86/include/asm/uaccess_32.h b/arch/x86/include/asm/uaccess_32.h
index 3fe0eac..18dfa8b 100644
--- a/arch/x86/include/asm/uaccess_32.h
+++ b/arch/x86/include/asm/uaccess_32.h
@@ -40,9 +40,14 @@ unsigned long __must_check __copy_from_user_ll_nocache_nozero
  * anything, so this is accurate.
  */
 
-static __always_inline unsigned long __must_check
+static __always_inline __size_overflow(3) unsigned long __must_check
 __copy_to_user_inatomic(void __user *to, const void *from, unsigned long n)
 {
+	if ((long)n < 0)
+		return n;
+
+	check_object_size(from, n, true);
+
 	if (__builtin_constant_p(n)) {
 		unsigned long ret;
 
@@ -95,12 +100,16 @@ static __always_inline unsigned long __must_check
 __copy_to_user(void __user *to, const void *from, unsigned long n)
 {
 	might_fault();
+
 	return __copy_to_user_inatomic(to, from, n);
 }
 
-static __always_inline unsigned long
+static __always_inline __size_overflow(3) unsigned long
 __copy_from_user_inatomic(void *to, const void __user *from, unsigned long n)
 {
+	if ((long)n < 0)
+		return n;
+
 	/* Avoid zeroing the tail if the copy fails..
 	 * If 'n' is constant and 1, 2, or 4, we do still zero on a failure,
 	 * but as the zeroing behaviour is only significant when n is not
@@ -157,6 +166,12 @@ static __always_inline unsigned long
 __copy_from_user(void *to, const void __user *from, unsigned long n)
 {
 	might_fault();
+
+	if ((long)n < 0)
+		return n;
+
+	check_object_size(to, n, false);
+
 	if (__builtin_constant_p(n)) {
 		unsigned long ret;
 
@@ -185,6 +200,10 @@ static __always_inline unsigned long __copy_from_user_nocache(void *to,
 				const void __user *from, unsigned long n)
 {
 	might_fault();
+
+	if ((long)n < 0)
+		return n;
+
 	if (__builtin_constant_p(n)) {
 		unsigned long ret;
 
@@ -213,7 +232,10 @@ static __always_inline unsigned long
 __copy_from_user_inatomic_nocache(void *to, const void __user *from,
 				  unsigned long n)
 {
-       return __copy_from_user_ll_nocache_nozero(to, from, n);
+	if ((long)n < 0)
+		return n;
+
+	return __copy_from_user_ll_nocache_nozero(to, from, n);
 }
 
 #endif /* _ASM_X86_UACCESS_32_H */
diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h
index 3076986..7688db9 100644
--- a/arch/x86/include/asm/uaccess_64.h
+++ b/arch/x86/include/asm/uaccess_64.h
@@ -10,6 +10,9 @@
 #include <asm/alternative.h>
 #include <asm/cpufeatures.h>
 #include <asm/page.h>
+#include <asm/pgtable.h>
+
+#define set_fs(x)	(current_thread_info()->addr_limit = (x))
 
 /*
  * Copy To/From Userspace
@@ -23,8 +26,8 @@ copy_user_generic_string(void *to, const void *from, unsigned len);
 __must_check unsigned long
 copy_user_generic_unrolled(void *to, const void *from, unsigned len);
 
-static __always_inline __must_check unsigned long
-copy_user_generic(void *to, const void *from, unsigned len)
+static __always_inline __must_check __size_overflow(3) unsigned long
+copy_user_generic(void *to, const void *from, unsigned long len)
 {
 	unsigned ret;
 
@@ -46,152 +49,201 @@ copy_user_generic(void *to, const void *from, unsigned len)
 }
 
 __must_check unsigned long
-copy_in_user(void __user *to, const void __user *from, unsigned len);
+copy_in_user(void __user *to, const void __user *from, unsigned long len);
 
 static __always_inline __must_check
-int __copy_from_user_nocheck(void *dst, const void __user *src, unsigned size)
+unsigned long __copy_from_user_nocheck(void *dst, const void __user *src, unsigned long size)
 {
-	int ret = 0;
+	size_t sz = __compiletime_object_size(dst);
+	unsigned ret = 0;
+
+	if (size > INT_MAX)
+		return size;
+
+	check_object_size(dst, size, false);
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	if (!access_ok_noprefault(VERIFY_READ, src, size))
+		return size;
+#endif
+
+	if (unlikely(sz != (size_t)-1 && sz < size)) {
+		 if(__builtin_constant_p(size))
+			copy_from_user_overflow();
+		else
+			__copy_from_user_overflow(sz, size);
+		return size;
+	}
 
 	if (!__builtin_constant_p(size))
-		return copy_user_generic(dst, (__force void *)src, size);
+		return copy_user_generic(dst, (__force_kernel const void *)____m(src), size);
 	switch (size) {
 	case 1:
 		__uaccess_begin();
-		__get_user_asm(*(u8 *)dst, (u8 __user *)src,
+		__get_user_asm(*(u8 *)dst, (const u8 __user *)src,
 			      ret, "b", "b", "=q", 1);
 		__uaccess_end();
 		return ret;
 	case 2:
 		__uaccess_begin();
-		__get_user_asm(*(u16 *)dst, (u16 __user *)src,
+		__get_user_asm(*(u16 *)dst, (const u16 __user *)src,
 			      ret, "w", "w", "=r", 2);
 		__uaccess_end();
 		return ret;
 	case 4:
 		__uaccess_begin();
-		__get_user_asm(*(u32 *)dst, (u32 __user *)src,
+		__get_user_asm(*(u32 *)dst, (const u32 __user *)src,
 			      ret, "l", "k", "=r", 4);
 		__uaccess_end();
 		return ret;
 	case 8:
 		__uaccess_begin();
-		__get_user_asm(*(u64 *)dst, (u64 __user *)src,
+		__get_user_asm(*(u64 *)dst, (const u64 __user *)src,
 			      ret, "q", "", "=r", 8);
 		__uaccess_end();
 		return ret;
 	case 10:
 		__uaccess_begin();
-		__get_user_asm(*(u64 *)dst, (u64 __user *)src,
+		__get_user_asm(*(u64 *)dst, (const u64 __user *)src,
 			       ret, "q", "", "=r", 10);
 		if (likely(!ret))
 			__get_user_asm(*(u16 *)(8 + (char *)dst),
-				       (u16 __user *)(8 + (char __user *)src),
+				       (const u16 __user *)(8 + (const char __user *)src),
 				       ret, "w", "w", "=r", 2);
 		__uaccess_end();
 		return ret;
 	case 16:
 		__uaccess_begin();
-		__get_user_asm(*(u64 *)dst, (u64 __user *)src,
+		__get_user_asm(*(u64 *)dst, (const u64 __user *)src,
 			       ret, "q", "", "=r", 16);
 		if (likely(!ret))
 			__get_user_asm(*(u64 *)(8 + (char *)dst),
-				       (u64 __user *)(8 + (char __user *)src),
+				       (const u64 __user *)(8 + (const char __user *)src),
 				       ret, "q", "", "=r", 8);
 		__uaccess_end();
 		return ret;
 	default:
-		return copy_user_generic(dst, (__force void *)src, size);
+		return copy_user_generic(dst, (__force_kernel const void *)____m(src), size);
 	}
 }
 
 static __always_inline __must_check
-int __copy_from_user(void *dst, const void __user *src, unsigned size)
+unsigned long __copy_from_user(void *dst, const void __user *src, unsigned long size)
 {
 	might_fault();
 	return __copy_from_user_nocheck(dst, src, size);
 }
 
 static __always_inline __must_check
-int __copy_to_user_nocheck(void __user *dst, const void *src, unsigned size)
+unsigned long __copy_to_user_nocheck(void __user *dst, const void *src, unsigned long size)
 {
-	int ret = 0;
+	size_t sz = __compiletime_object_size(src);
+	unsigned ret = 0;
+
+	if (size > INT_MAX)
+		return size;
+
+	check_object_size(src, size, true);
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	if (!access_ok_noprefault(VERIFY_WRITE, dst, size))
+		return size;
+#endif
+
+	if (unlikely(sz != (size_t)-1 && sz < size)) {
+		 if(__builtin_constant_p(size))
+			copy_to_user_overflow();
+		else
+			__copy_to_user_overflow(sz, size);
+		return size;
+	}
 
 	if (!__builtin_constant_p(size))
-		return copy_user_generic((__force void *)dst, src, size);
+		return copy_user_generic((__force_kernel void *)____m(dst), src, size);
 	switch (size) {
 	case 1:
 		__uaccess_begin();
-		__put_user_asm(*(u8 *)src, (u8 __user *)dst,
+		__put_user_asm(*(const u8 *)src, (u8 __user *)dst,
 			      ret, "b", "b", "iq", 1);
 		__uaccess_end();
 		return ret;
 	case 2:
 		__uaccess_begin();
-		__put_user_asm(*(u16 *)src, (u16 __user *)dst,
+		__put_user_asm(*(const u16 *)src, (u16 __user *)dst,
 			      ret, "w", "w", "ir", 2);
 		__uaccess_end();
 		return ret;
 	case 4:
 		__uaccess_begin();
-		__put_user_asm(*(u32 *)src, (u32 __user *)dst,
+		__put_user_asm(*(const u32 *)src, (u32 __user *)dst,
 			      ret, "l", "k", "ir", 4);
 		__uaccess_end();
 		return ret;
 	case 8:
 		__uaccess_begin();
-		__put_user_asm(*(u64 *)src, (u64 __user *)dst,
+		__put_user_asm(*(const u64 *)src, (u64 __user *)dst,
 			      ret, "q", "", "er", 8);
 		__uaccess_end();
 		return ret;
 	case 10:
 		__uaccess_begin();
-		__put_user_asm(*(u64 *)src, (u64 __user *)dst,
+		__put_user_asm(*(const u64 *)src, (u64 __user *)dst,
 			       ret, "q", "", "er", 10);
 		if (likely(!ret)) {
 			asm("":::"memory");
-			__put_user_asm(4[(u16 *)src], 4 + (u16 __user *)dst,
+			__put_user_asm(4[(const u16 *)src], 4 + (u16 __user *)dst,
 				       ret, "w", "w", "ir", 2);
 		}
 		__uaccess_end();
 		return ret;
 	case 16:
 		__uaccess_begin();
-		__put_user_asm(*(u64 *)src, (u64 __user *)dst,
+		__put_user_asm(*(const u64 *)src, (u64 __user *)dst,
 			       ret, "q", "", "er", 16);
 		if (likely(!ret)) {
 			asm("":::"memory");
-			__put_user_asm(1[(u64 *)src], 1 + (u64 __user *)dst,
+			__put_user_asm(1[(const u64 *)src], 1 + (u64 __user *)dst,
 				       ret, "q", "", "er", 8);
 		}
 		__uaccess_end();
 		return ret;
 	default:
-		return copy_user_generic((__force void *)dst, src, size);
+		return copy_user_generic((__force_kernel void *)____m(dst), src, size);
 	}
 }
 
 static __always_inline __must_check
-int __copy_to_user(void __user *dst, const void *src, unsigned size)
+unsigned long __copy_to_user(void __user *dst, const void *src, unsigned long size)
 {
 	might_fault();
 	return __copy_to_user_nocheck(dst, src, size);
 }
 
 static __always_inline __must_check
-int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
+unsigned long __copy_in_user(void __user *dst, const void __user *src, unsigned size)
 {
-	int ret = 0;
+	unsigned ret = 0;
 
 	might_fault();
+
+	if (size > INT_MAX)
+		return size;
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	if (!access_ok_noprefault(VERIFY_READ, src, size))
+		return size;
+	if (!access_ok_noprefault(VERIFY_WRITE, dst, size))
+		return size;
+#endif
+
 	if (!__builtin_constant_p(size))
-		return copy_user_generic((__force void *)dst,
-					 (__force void *)src, size);
+		return copy_user_generic((__force_kernel void *)____m(dst),
+					 (__force_kernel const void *)____m(src), size);
 	switch (size) {
 	case 1: {
 		u8 tmp;
 		__uaccess_begin();
-		__get_user_asm(tmp, (u8 __user *)src,
+		__get_user_asm(tmp, (const u8 __user *)src,
 			       ret, "b", "b", "=q", 1);
 		if (likely(!ret))
 			__put_user_asm(tmp, (u8 __user *)dst,
@@ -202,7 +254,7 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
 	case 2: {
 		u16 tmp;
 		__uaccess_begin();
-		__get_user_asm(tmp, (u16 __user *)src,
+		__get_user_asm(tmp, (const u16 __user *)src,
 			       ret, "w", "w", "=r", 2);
 		if (likely(!ret))
 			__put_user_asm(tmp, (u16 __user *)dst,
@@ -214,7 +266,7 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
 	case 4: {
 		u32 tmp;
 		__uaccess_begin();
-		__get_user_asm(tmp, (u32 __user *)src,
+		__get_user_asm(tmp, (const u32 __user *)src,
 			       ret, "l", "k", "=r", 4);
 		if (likely(!ret))
 			__put_user_asm(tmp, (u32 __user *)dst,
@@ -225,7 +277,7 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
 	case 8: {
 		u64 tmp;
 		__uaccess_begin();
-		__get_user_asm(tmp, (u64 __user *)src,
+		__get_user_asm(tmp, (const u64 __user *)src,
 			       ret, "q", "", "=r", 8);
 		if (likely(!ret))
 			__put_user_asm(tmp, (u64 __user *)dst,
@@ -234,41 +286,58 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
 		return ret;
 	}
 	default:
-		return copy_user_generic((__force void *)dst,
-					 (__force void *)src, size);
+		return copy_user_generic((__force_kernel void *)____m(dst),
+					 (__force_kernel const void *)____m(src), size);
 	}
 }
 
-static __must_check __always_inline int
-__copy_from_user_inatomic(void *dst, const void __user *src, unsigned size)
+static __must_check __always_inline unsigned long
+__copy_from_user_inatomic(void *dst, const void __user *src, unsigned long size)
 {
 	return __copy_from_user_nocheck(dst, src, size);
 }
 
-static __must_check __always_inline int
-__copy_to_user_inatomic(void __user *dst, const void *src, unsigned size)
+static __must_check __always_inline unsigned long
+__copy_to_user_inatomic(void __user *dst, const void *src, unsigned long size)
 {
 	return __copy_to_user_nocheck(dst, src, size);
 }
 
-extern long __copy_user_nocache(void *dst, const void __user *src,
-				unsigned size, int zerorest);
+extern unsigned long __copy_user_nocache(void *dst, const void __user *src,
+				unsigned long size, int zerorest);
 
-static inline int
-__copy_from_user_nocache(void *dst, const void __user *src, unsigned size)
+static inline unsigned long
+__copy_from_user_nocache(void *dst, const void __user *src, unsigned long size)
 {
 	might_fault();
+
+	if (size > INT_MAX)
+		return size;
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	if (!access_ok_noprefault(VERIFY_READ, src, size))
+		return size;
+#endif
+
 	return __copy_user_nocache(dst, src, size, 1);
 }
 
-static inline int
+static inline unsigned long
 __copy_from_user_inatomic_nocache(void *dst, const void __user *src,
-				  unsigned size)
+				  unsigned long size)
 {
+	if (size > INT_MAX)
+		return size;
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	if (!access_ok_noprefault(VERIFY_READ, src, size))
+		return size;
+#endif
+
 	return __copy_user_nocache(dst, src, size, 0);
 }
 
 unsigned long
-copy_user_handle_tail(char *to, char *from, unsigned len);
+copy_user_handle_tail(char __user *to, char __user *from, unsigned long len) __size_overflow(3);
 
 #endif /* _ASM_X86_UACCESS_64_H */
diff --git a/arch/x86/include/asm/word-at-a-time.h b/arch/x86/include/asm/word-at-a-time.h
index 5b238981..77fdd78 100644
--- a/arch/x86/include/asm/word-at-a-time.h
+++ b/arch/x86/include/asm/word-at-a-time.h
@@ -11,7 +11,7 @@
  * and shift, for example.
  */
 struct word_at_a_time {
-	const unsigned long one_bits, high_bits;
+	unsigned long one_bits, high_bits;
 };
 
 #define WORD_AT_A_TIME_CONSTANTS { REPEAT_BYTE(0x01), REPEAT_BYTE(0x80) }
diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
index 1ae89a2..a279bf4 100644
--- a/arch/x86/include/asm/x86_init.h
+++ b/arch/x86/include/asm/x86_init.h
@@ -126,7 +126,7 @@ struct x86_init_ops {
 	struct x86_init_timers		timers;
 	struct x86_init_iommu		iommu;
 	struct x86_init_pci		pci;
-};
+} __no_const;
 
 /**
  * struct x86_cpuinit_ops - platform specific cpu hotplug setups
@@ -137,7 +137,7 @@ struct x86_cpuinit_ops {
 	void (*setup_percpu_clockev)(void);
 	void (*early_percpu_clock_init)(void);
 	void (*fixup_cpu_id)(struct cpuinfo_x86 *c, int node);
-};
+} __no_const;
 
 struct timespec;
 
@@ -165,7 +165,7 @@ struct x86_platform_ops {
 	void (*save_sched_clock_state)(void);
 	void (*restore_sched_clock_state)(void);
 	void (*apic_post_init)(void);
-};
+} __no_const;
 
 struct pci_dev;
 
@@ -174,12 +174,12 @@ struct x86_msi_ops {
 	void (*teardown_msi_irq)(unsigned int irq);
 	void (*teardown_msi_irqs)(struct pci_dev *dev);
 	void (*restore_msi_irqs)(struct pci_dev *dev);
-};
+} __no_const;
 
 struct x86_io_apic_ops {
 	unsigned int	(*read)   (unsigned int apic, unsigned int reg);
 	void		(*disable)(void);
-};
+} __no_const;
 
 extern struct x86_init_ops x86_init;
 extern struct x86_cpuinit_ops x86_cpuinit;
diff --git a/arch/x86/include/asm/xen/page.h b/arch/x86/include/asm/xen/page.h
index f5fb840..e45184e 100644
--- a/arch/x86/include/asm/xen/page.h
+++ b/arch/x86/include/asm/xen/page.h
@@ -82,7 +82,7 @@ static inline int xen_safe_read_ulong(unsigned long *addr, unsigned long *val)
  * - get_phys_to_machine() is to be called by __pfn_to_mfn() only in special
  *   cases needing an extended handling.
  */
-static inline unsigned long __pfn_to_mfn(unsigned long pfn)
+static inline unsigned long __intentional_overflow(-1) __pfn_to_mfn(unsigned long pfn)
 {
 	unsigned long mfn;
 
diff --git a/arch/x86/include/uapi/asm/e820.h b/arch/x86/include/uapi/asm/e820.h
index 9dafe59..0293c1d 100644
--- a/arch/x86/include/uapi/asm/e820.h
+++ b/arch/x86/include/uapi/asm/e820.h
@@ -69,7 +69,7 @@ struct e820map {
 #define ISA_START_ADDRESS	0xa0000
 #define ISA_END_ADDRESS		0x100000
 
-#define BIOS_BEGIN		0x000a0000
+#define BIOS_BEGIN		0x000c0000
 #define BIOS_END		0x00100000
 
 #define BIOS_ROM_BASE		0xffe00000
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 616ebd2..7386ebf 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -42,7 +42,7 @@ obj-$(CONFIG_MODIFY_LDT_SYSCALL)	+= ldt.o
 obj-y			+= setup.o x86_init.o i8259.o irqinit.o jump_label.o
 obj-$(CONFIG_IRQ_WORK)  += irq_work.o
 obj-y			+= probe_roms.o
-obj-$(CONFIG_X86_32)	+= i386_ksyms_32.o
+obj-$(CONFIG_X86_32)	+= sys_i386_32.o i386_ksyms_32.o
 obj-$(CONFIG_X86_64)	+= sys_x86_64.o x8664_ksyms_64.o
 obj-$(CONFIG_X86_64)	+= mcount_64.o
 obj-$(CONFIG_X86_ESPFIX64)	+= espfix_64.o
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 8c2f1ef..e4e5c19 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -1341,7 +1341,7 @@ static void __init acpi_reduced_hw_init(void)
  * If your system is blacklisted here, but you find that acpi=force
  * works for you, please contact linux-acpi@vger.kernel.org
  */
-static struct dmi_system_id __initdata acpi_dmi_table[] = {
+static const struct dmi_system_id __initconst acpi_dmi_table[] = {
 	/*
 	 * Boxes that need ACPI disabled
 	 */
@@ -1416,7 +1416,7 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = {
 };
 
 /* second table for DMI checks that should run after early-quirks */
-static struct dmi_system_id __initdata acpi_dmi_table_late[] = {
+static const struct dmi_system_id __initconst acpi_dmi_table_late[] = {
 	/*
 	 * HP laptops which use a DSDT reporting as HP/SB400/10000,
 	 * which includes some code which overrides all temperature
diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c
index adb3eaf..0eb666c 100644
--- a/arch/x86/kernel/acpi/sleep.c
+++ b/arch/x86/kernel/acpi/sleep.c
@@ -100,8 +100,12 @@ int x86_acpi_suspend_lowlevel(void)
 #else /* CONFIG_64BIT */
 #ifdef CONFIG_SMP
 	stack_start = (unsigned long)temp_stack + sizeof(temp_stack);
+
+	pax_open_kernel();
 	early_gdt_descr.address =
 			(unsigned long)get_cpu_gdt_table(smp_processor_id());
+	pax_close_kernel();
+
 	initial_gs = per_cpu_offset(smp_processor_id());
 #endif
 	initial_code = (unsigned long)wakeup_long64;
diff --git a/arch/x86/kernel/acpi/wakeup_32.S b/arch/x86/kernel/acpi/wakeup_32.S
index 0c26b1b..a766e85 100644
--- a/arch/x86/kernel/acpi/wakeup_32.S
+++ b/arch/x86/kernel/acpi/wakeup_32.S
@@ -31,13 +31,11 @@ wakeup_pmode_return:
 	# and restore the stack ... but you need gdt for this to work
 	movl	saved_context_esp, %esp
 
-	movl	%cs:saved_magic, %eax
-	cmpl	$0x12345678, %eax
+	cmpl	$0x12345678, saved_magic
 	jne	bogus_magic
 
 	# jump to place where we left off
-	movl	saved_eip, %eax
-	jmp	*%eax
+	jmp	*(saved_eip)
 
 bogus_magic:
 	jmp	bogus_magic
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index 25f9093..f630040 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -20,6 +20,7 @@
 #include <asm/tlbflush.h>
 #include <asm/io.h>
 #include <asm/fixmap.h>
+#include <asm/boot.h>
 
 int __read_mostly alternatives_patched;
 
@@ -261,7 +262,9 @@ static void __init_or_module add_nops(void *insns, unsigned int len)
 		unsigned int noplen = len;
 		if (noplen > ASM_NOP_MAX)
 			noplen = ASM_NOP_MAX;
+		pax_open_kernel();
 		memcpy(insns, ideal_nops[noplen], noplen);
+		pax_close_kernel();
 		insns += noplen;
 		len -= noplen;
 	}
@@ -289,6 +292,13 @@ recompute_jump(struct alt_instr *a, u8 *orig_insn, u8 *repl_insn, u8 *insnbuf)
 	if (a->replacementlen != 5)
 		return;
 
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+	if (orig_insn < (u8 *)_text || (u8 *)_einittext <= orig_insn)
+		orig_insn = (u8 *)ktva_ktla((unsigned long)orig_insn);
+	else
+		orig_insn -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
+#endif
+
 	o_dspl = *(s32 *)(insnbuf + 1);
 
 	/* next_rip of the replacement JMP */
@@ -364,6 +374,7 @@ void __init_or_module apply_alternatives(struct alt_instr *start,
 {
 	struct alt_instr *a;
 	u8 *instr, *replacement;
+	u8 *vinstr, *vreplacement;
 	u8 insnbuf[MAX_PATCH_LEN];
 
 	DPRINTK("alt table %p -> %p", start, end);
@@ -379,46 +390,71 @@ void __init_or_module apply_alternatives(struct alt_instr *start,
 	for (a = start; a < end; a++) {
 		int insnbuf_sz = 0;
 
-		instr = (u8 *)&a->instr_offset + a->instr_offset;
-		replacement = (u8 *)&a->repl_offset + a->repl_offset;
+		vinstr = instr = (u8 *)&a->instr_offset + a->instr_offset;
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+		if ((u8 *)_text - (____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR) <= instr &&
+		    instr < (u8 *)_einittext - (____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR)) {
+			instr += ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
+			vinstr = (u8 *)ktla_ktva((unsigned long)instr);
+		} else if ((u8 *)_text <= instr && instr < (u8 *)_einittext) {
+			vinstr = (u8 *)ktla_ktva((unsigned long)instr);
+		} else {
+			instr = (u8 *)ktva_ktla((unsigned long)instr);
+		}
+#endif
+
+		vreplacement = replacement = (u8 *)&a->repl_offset + a->repl_offset;
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+		if ((u8 *)_text - (____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR) <= replacement &&
+		    replacement < (u8 *)_einittext - (____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR)) {
+			replacement += ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
+			vreplacement = (u8 *)ktla_ktva((unsigned long)replacement);
+		} else if ((u8 *)_text <= replacement && replacement < (u8 *)_einittext) {
+			vreplacement = (u8 *)ktla_ktva((unsigned long)replacement);
+		} else
+			replacement = (u8 *)ktva_ktla((unsigned long)replacement);
+#endif
+
 		BUG_ON(a->instrlen > sizeof(insnbuf));
 		BUG_ON(a->cpuid >= (NCAPINTS + NBUGINTS) * 32);
 		if (!boot_cpu_has(a->cpuid)) {
 			if (a->padlen > 1)
-				optimize_nops(a, instr);
+				optimize_nops(a, vinstr);
 
 			continue;
 		}
 
-		DPRINTK("feat: %d*32+%d, old: (%p, len: %d), repl: (%p, len: %d), pad: %d",
+		DPRINTK("feat: %d*32+%d, old: (%p/%p, len: %d), repl: (%p, len: %d), pad: %d",
 			a->cpuid >> 5,
 			a->cpuid & 0x1f,
-			instr, a->instrlen,
-			replacement, a->replacementlen, a->padlen);
+			instr, vinstr, a->instrlen,
+			vreplacement, a->replacementlen, a->padlen);
 
-		DUMP_BYTES(instr, a->instrlen, "%p: old_insn: ", instr);
-		DUMP_BYTES(replacement, a->replacementlen, "%p: rpl_insn: ", replacement);
+		DUMP_BYTES(vinstr, a->instrlen, "%p: old_insn: ", vinstr);
+		DUMP_BYTES(vreplacement, a->replacementlen, "%p: rpl_insn: ", vreplacement);
 
-		memcpy(insnbuf, replacement, a->replacementlen);
+		memcpy(insnbuf, vreplacement, a->replacementlen);
 		insnbuf_sz = a->replacementlen;
 
 		/* 0xe8 is a relative jump; fix the offset. */
 		if (*insnbuf == 0xe8 && a->replacementlen == 5) {
-			*(s32 *)(insnbuf + 1) += replacement - instr;
+			*(s32 *)(insnbuf + 1) += vreplacement - instr;
 			DPRINTK("Fix CALL offset: 0x%x, CALL 0x%lx",
 				*(s32 *)(insnbuf + 1),
-				(unsigned long)instr + *(s32 *)(insnbuf + 1) + 5);
+				(unsigned long)vinstr + *(s32 *)(insnbuf + 1) + 5);
 		}
 
-		if (a->replacementlen && is_jmp(replacement[0]))
-			recompute_jump(a, instr, replacement, insnbuf);
+		if (a->replacementlen && is_jmp(vreplacement[0]))
+			recompute_jump(a, instr, vreplacement, insnbuf);
 
 		if (a->instrlen > a->replacementlen) {
 			add_nops(insnbuf + a->replacementlen,
 				 a->instrlen - a->replacementlen);
 			insnbuf_sz += a->instrlen - a->replacementlen;
 		}
-		DUMP_BYTES(insnbuf, insnbuf_sz, "%p: final_insn: ", instr);
+		DUMP_BYTES(insnbuf, insnbuf_sz, "%p: final_insn: ", vinstr);
 
 		text_poke_early(instr, insnbuf, insnbuf_sz);
 	}
@@ -434,10 +470,16 @@ static void alternatives_smp_lock(const s32 *start, const s32 *end,
 	for (poff = start; poff < end; poff++) {
 		u8 *ptr = (u8 *)poff + *poff;
 
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+		ptr += ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
+		if (ptr < (u8 *)_text || (u8 *)_einittext <= ptr)
+			ptr -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
+#endif
+
 		if (!*poff || ptr < text || ptr >= text_end)
 			continue;
 		/* turn DS segment override prefix into lock prefix */
-		if (*ptr == 0x3e)
+		if (*(u8 *)ktla_ktva((unsigned long)ptr) == 0x3e)
 			text_poke(ptr, ((unsigned char []){0xf0}), 1);
 	}
 	mutex_unlock(&text_mutex);
@@ -452,10 +494,16 @@ static void alternatives_smp_unlock(const s32 *start, const s32 *end,
 	for (poff = start; poff < end; poff++) {
 		u8 *ptr = (u8 *)poff + *poff;
 
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+		ptr += ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
+		if (ptr < (u8 *)_text || (u8 *)_einittext <= ptr)
+			ptr -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
+#endif
+
 		if (!*poff || ptr < text || ptr >= text_end)
 			continue;
 		/* turn lock prefix into DS segment override prefix */
-		if (*ptr == 0xf0)
+		if (*(u8 *)ktla_ktva((unsigned long)ptr) == 0xf0)
 			text_poke(ptr, ((unsigned char []){0x3E}), 1);
 	}
 	mutex_unlock(&text_mutex);
@@ -592,7 +640,7 @@ void __init_or_module apply_paravirt(struct paravirt_patch_site *start,
 
 		BUG_ON(p->len > MAX_PATCH_LEN);
 		/* prep the buffer with the original instructions */
-		memcpy(insnbuf, p->instr, p->len);
+		memcpy(insnbuf, (const void *)ktla_ktva((unsigned long)p->instr), p->len);
 		used = pv_init_ops.patch(p->instrtype, p->clobbers, insnbuf,
 					 (unsigned long)p->instr, p->len);
 
@@ -639,7 +687,7 @@ void __init alternative_instructions(void)
 	if (!uniproc_patched || num_possible_cpus() == 1)
 		free_init_pages("SMP alternatives",
 				(unsigned long)__smp_locks,
-				(unsigned long)__smp_locks_end);
+				PAGE_ALIGN((unsigned long)__smp_locks_end));
 #endif
 
 	apply_paravirt(__parainstructions, __parainstructions_end);
@@ -660,13 +708,17 @@ void __init alternative_instructions(void)
  * instructions. And on the local CPU you need to be protected again NMI or MCE
  * handlers seeing an inconsistent instruction while you patch.
  */
-void *__init_or_module text_poke_early(void *addr, const void *opcode,
+void *__kprobes text_poke_early(void *addr, const void *opcode,
 					      size_t len)
 {
 	unsigned long flags;
 	local_irq_save(flags);
-	memcpy(addr, opcode, len);
+
+	pax_open_kernel();
+	memcpy((void *)ktla_ktva((unsigned long)addr), opcode, len);
 	sync_core();
+	pax_close_kernel();
+
 	local_irq_restore(flags);
 	/* Could also do a CLFLUSH here to speed up CPU recovery; but
 	   that causes hangs on some VIA CPUs. */
@@ -688,36 +740,22 @@ void *__init_or_module text_poke_early(void *addr, const void *opcode,
  */
 void *text_poke(void *addr, const void *opcode, size_t len)
 {
-	unsigned long flags;
-	char *vaddr;
+	unsigned char *vaddr = (void *)ktla_ktva((unsigned long)addr);
 	struct page *pages[2];
-	int i;
+	size_t i;
 
 	if (!core_kernel_text((unsigned long)addr)) {
-		pages[0] = vmalloc_to_page(addr);
-		pages[1] = vmalloc_to_page(addr + PAGE_SIZE);
+		pages[0] = vmalloc_to_page(vaddr);
+		pages[1] = vmalloc_to_page(vaddr + PAGE_SIZE);
 	} else {
-		pages[0] = virt_to_page(addr);
+		pages[0] = virt_to_page(vaddr);
 		WARN_ON(!PageReserved(pages[0]));
-		pages[1] = virt_to_page(addr + PAGE_SIZE);
+		pages[1] = virt_to_page(vaddr + PAGE_SIZE);
 	}
 	BUG_ON(!pages[0]);
-	local_irq_save(flags);
-	set_fixmap(FIX_TEXT_POKE0, page_to_phys(pages[0]));
-	if (pages[1])
-		set_fixmap(FIX_TEXT_POKE1, page_to_phys(pages[1]));
-	vaddr = (char *)fix_to_virt(FIX_TEXT_POKE0);
-	memcpy(&vaddr[(unsigned long)addr & ~PAGE_MASK], opcode, len);
-	clear_fixmap(FIX_TEXT_POKE0);
-	if (pages[1])
-		clear_fixmap(FIX_TEXT_POKE1);
-	local_flush_tlb();
-	sync_core();
-	/* Could also do a CLFLUSH here to speed up CPU recovery; but
-	   that causes hangs on some VIA CPUs. */
+	text_poke_early(addr, opcode, len);
 	for (i = 0; i < len; i++)
-		BUG_ON(((char *)addr)[i] != ((char *)opcode)[i]);
-	local_irq_restore(flags);
+		BUG_ON((vaddr)[i] != ((const unsigned char *)opcode)[i]);
 	return addr;
 }
 
@@ -771,7 +809,7 @@ int poke_int3_handler(struct pt_regs *regs)
  */
 void *text_poke_bp(void *addr, const void *opcode, size_t len, void *handler)
 {
-	unsigned char int3 = 0xcc;
+	const unsigned char int3 = 0xcc;
 
 	bp_int3_handler = handler;
 	bp_int3_addr = (u8 *)addr + sizeof(int3);
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index d356987..ed8a52b 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -177,7 +177,7 @@ int first_system_vector = FIRST_SYSTEM_VECTOR;
 /*
  * Debug level, exported for io_apic.c
  */
-unsigned int apic_verbosity;
+int apic_verbosity;
 
 int pic_mode;
 
@@ -1878,7 +1878,7 @@ static void __smp_error_interrupt(struct pt_regs *regs)
 		apic_write(APIC_ESR, 0);
 	v = apic_read(APIC_ESR);
 	ack_APIC_irq();
-	atomic_inc(&irq_err_count);
+	atomic_inc_unchecked(&irq_err_count);
 
 	apic_printk(APIC_DEBUG, KERN_DEBUG "APIC error on CPU%d: %02x",
 		    smp_processor_id(), v);
diff --git a/arch/x86/kernel/apic/apic_flat_64.c b/arch/x86/kernel/apic/apic_flat_64.c
index 76f89e2..4a349aaa 100644
--- a/arch/x86/kernel/apic/apic_flat_64.c
+++ b/arch/x86/kernel/apic/apic_flat_64.c
@@ -25,7 +25,7 @@
 static struct apic apic_physflat;
 static struct apic apic_flat;
 
-struct apic __read_mostly *apic = &apic_flat;
+struct apic *apic __read_only = &apic_flat;
 EXPORT_SYMBOL_GPL(apic);
 
 static int flat_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
@@ -154,7 +154,7 @@ static int flat_probe(void)
 	return 1;
 }
 
-static struct apic apic_flat =  {
+static struct apic apic_flat __read_only =  {
 	.name				= "flat",
 	.probe				= flat_probe,
 	.acpi_madt_oem_check		= flat_acpi_madt_oem_check,
@@ -249,7 +249,7 @@ static int physflat_probe(void)
 	return 0;
 }
 
-static struct apic apic_physflat =  {
+static struct apic apic_physflat __read_only =  {
 
 	.name				= "physical flat",
 	.probe				= physflat_probe,
diff --git a/arch/x86/kernel/apic/apic_noop.c b/arch/x86/kernel/apic/apic_noop.c
index 331a7a0..2173347 100644
--- a/arch/x86/kernel/apic/apic_noop.c
+++ b/arch/x86/kernel/apic/apic_noop.c
@@ -109,7 +109,7 @@ static void noop_apic_write(u32 reg, u32 v)
 	WARN_ON_ONCE(cpu_has_apic && !disable_apic);
 }
 
-struct apic apic_noop = {
+struct apic apic_noop __read_only = {
 	.name				= "noop",
 	.probe				= noop_probe,
 	.acpi_madt_oem_check		= NULL,
diff --git a/arch/x86/kernel/apic/bigsmp_32.c b/arch/x86/kernel/apic/bigsmp_32.c
index cf9bd89..75fcb85 100644
--- a/arch/x86/kernel/apic/bigsmp_32.c
+++ b/arch/x86/kernel/apic/bigsmp_32.c
@@ -142,7 +142,7 @@ static int probe_bigsmp(void)
 	return dmi_bigsmp;
 }
 
-static struct apic apic_bigsmp = {
+static struct apic apic_bigsmp __read_only = {
 
 	.name				= "bigsmp",
 	.probe				= probe_bigsmp,
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index fdb0fbf..352c2f0 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -1682,7 +1682,7 @@ static unsigned int startup_ioapic_irq(struct irq_data *data)
 	return was_pending;
 }
 
-atomic_t irq_mis_count;
+atomic_unchecked_t irq_mis_count;
 
 #ifdef CONFIG_GENERIC_PENDING_IRQ
 static bool io_apic_level_ack_pending(struct mp_chip_data *data)
@@ -1821,7 +1821,7 @@ static void ioapic_ack_level(struct irq_data *irq_data)
 	 * at the cpu.
 	 */
 	if (!(v & (1 << (i & 0x1f)))) {
-		atomic_inc(&irq_mis_count);
+		atomic_inc_unchecked(&irq_mis_count);
 		eoi_ioapic_pin(cfg->vector, irq_data->chip_data);
 	}
 
@@ -1867,7 +1867,7 @@ static int ioapic_set_affinity(struct irq_data *irq_data,
 	return ret;
 }
 
-static struct irq_chip ioapic_chip __read_mostly = {
+static struct irq_chip ioapic_chip = {
 	.name			= "IO-APIC",
 	.irq_startup		= startup_ioapic_irq,
 	.irq_mask		= mask_ioapic_irq,
@@ -1878,7 +1878,7 @@ static struct irq_chip ioapic_chip __read_mostly = {
 	.flags			= IRQCHIP_SKIP_SET_WAKE,
 };
 
-static struct irq_chip ioapic_ir_chip __read_mostly = {
+static struct irq_chip ioapic_ir_chip = {
 	.name			= "IR-IO-APIC",
 	.irq_startup		= startup_ioapic_irq,
 	.irq_mask		= mask_ioapic_irq,
@@ -1936,7 +1936,7 @@ static void ack_lapic_irq(struct irq_data *data)
 	ack_APIC_irq();
 }
 
-static struct irq_chip lapic_chip __read_mostly = {
+static struct irq_chip lapic_chip = {
 	.name		= "local-APIC",
 	.irq_mask	= mask_lapic_irq,
 	.irq_unmask	= unmask_lapic_irq,
diff --git a/arch/x86/kernel/apic/msi.c b/arch/x86/kernel/apic/msi.c
index ade2532..5fc7f4f9 100644
--- a/arch/x86/kernel/apic/msi.c
+++ b/arch/x86/kernel/apic/msi.c
@@ -269,7 +269,7 @@ static void hpet_msi_write_msg(struct irq_data *data, struct msi_msg *msg)
 	hpet_msi_write(irq_data_get_irq_handler_data(data), msg);
 }
 
-static struct irq_chip hpet_msi_controller = {
+static irq_chip_no_const hpet_msi_controller __read_only = {
 	.name = "HPET-MSI",
 	.irq_unmask = hpet_msi_unmask,
 	.irq_mask = hpet_msi_mask,
diff --git a/arch/x86/kernel/apic/probe_32.c b/arch/x86/kernel/apic/probe_32.c
index f316e34..48c21c5 100644
--- a/arch/x86/kernel/apic/probe_32.c
+++ b/arch/x86/kernel/apic/probe_32.c
@@ -72,7 +72,7 @@ static int probe_default(void)
 	return 1;
 }
 
-static struct apic apic_default = {
+static struct apic apic_default __read_only = {
 
 	.name				= "default",
 	.probe				= probe_default,
@@ -127,7 +127,7 @@ static struct apic apic_default = {
 
 apic_driver(apic_default);
 
-struct apic *apic = &apic_default;
+struct apic *apic __read_only = &apic_default;
 EXPORT_SYMBOL_GPL(apic);
 
 static int cmdline_apic __initdata;
diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c
index ef49551..ba2e857 100644
--- a/arch/x86/kernel/apic/vector.c
+++ b/arch/x86/kernel/apic/vector.c
@@ -37,6 +37,7 @@ static struct irq_chip lapic_controller;
 static struct apic_chip_data *legacy_irq_data[NR_IRQS_LEGACY];
 #endif
 
+void lock_vector_lock(void) __acquires(&vector_lock);
 void lock_vector_lock(void)
 {
 	/* Used to the online set of cpus does not change
@@ -45,6 +46,7 @@ void lock_vector_lock(void)
 	raw_spin_lock(&vector_lock);
 }
 
+void unlock_vector_lock(void) __releases(&vector_lock);
 void unlock_vector_lock(void)
 {
 	raw_spin_unlock(&vector_lock);
diff --git a/arch/x86/kernel/apic/x2apic_cluster.c b/arch/x86/kernel/apic/x2apic_cluster.c
index aca8b75..4c1a7f5 100644
--- a/arch/x86/kernel/apic/x2apic_cluster.c
+++ b/arch/x86/kernel/apic/x2apic_cluster.c
@@ -242,7 +242,7 @@ static void cluster_vector_allocation_domain(int cpu, struct cpumask *retmask,
 		cpumask_and(retmask, mask, per_cpu(cpus_in_cluster, cpu));
 }
 
-static struct apic apic_x2apic_cluster = {
+static struct apic apic_x2apic_cluster __read_only = {
 
 	.name				= "cluster x2apic",
 	.probe				= x2apic_cluster_probe,
diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c
index a1242e2..0e7f712 100644
--- a/arch/x86/kernel/apic/x2apic_phys.c
+++ b/arch/x86/kernel/apic/x2apic_phys.c
@@ -98,7 +98,7 @@ static int x2apic_phys_probe(void)
 	return apic == &apic_x2apic_phys;
 }
 
-static struct apic apic_x2apic_phys = {
+static struct apic apic_x2apic_phys __read_only = {
 
 	.name				= "physical x2apic",
 	.probe				= x2apic_phys_probe,
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index d7ce96a..99cedd7 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -374,7 +374,7 @@ static int uv_probe(void)
 	return apic == &apic_x2apic_uv_x;
 }
 
-static struct apic __refdata apic_x2apic_uv_x = {
+static struct apic apic_x2apic_uv_x __read_only = {
 
 	.name				= "UV large system",
 	.probe				= uv_probe,
diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
index 9307f18..a43f175 100644
--- a/arch/x86/kernel/apm_32.c
+++ b/arch/x86/kernel/apm_32.c
@@ -432,7 +432,7 @@ static DEFINE_MUTEX(apm_mutex);
  * This is for buggy BIOS's that refer to (real mode) segment 0x40
  * even though they are called in protected mode.
  */
-static struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4092,
+static const struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4093,
 			(unsigned long)__va(0x400UL), PAGE_SIZE - 0x400 - 1);
 
 static const char driver_version[] = "1.16ac";	/* no spaces */
@@ -610,7 +610,10 @@ static long __apm_bios_call(void *_call)
 	BUG_ON(cpu != 0);
 	gdt = get_cpu_gdt_table(cpu);
 	save_desc_40 = gdt[0x40 / 8];
+
+	pax_open_kernel();
 	gdt[0x40 / 8] = bad_bios_desc;
+	pax_close_kernel();
 
 	apm_irq_save(flags);
 	APM_DO_SAVE_SEGS;
@@ -619,7 +622,11 @@ static long __apm_bios_call(void *_call)
 			  &call->esi);
 	APM_DO_RESTORE_SEGS;
 	apm_irq_restore(flags);
+
+	pax_open_kernel();
 	gdt[0x40 / 8] = save_desc_40;
+	pax_close_kernel();
+
 	put_cpu();
 
 	return call->eax & 0xff;
@@ -686,7 +693,10 @@ static long __apm_bios_call_simple(void *_call)
 	BUG_ON(cpu != 0);
 	gdt = get_cpu_gdt_table(cpu);
 	save_desc_40 = gdt[0x40 / 8];
+
+	pax_open_kernel();
 	gdt[0x40 / 8] = bad_bios_desc;
+	pax_close_kernel();
 
 	apm_irq_save(flags);
 	APM_DO_SAVE_SEGS;
@@ -694,7 +704,11 @@ static long __apm_bios_call_simple(void *_call)
 					 &call->eax);
 	APM_DO_RESTORE_SEGS;
 	apm_irq_restore(flags);
+
+	pax_open_kernel();
 	gdt[0x40 / 8] = save_desc_40;
+	pax_close_kernel();
+
 	put_cpu();
 	return error;
 }
@@ -2039,7 +2053,7 @@ static int __init swab_apm_power_in_minutes(const struct dmi_system_id *d)
 	return 0;
 }
 
-static struct dmi_system_id __initdata apm_dmi_table[] = {
+static const struct dmi_system_id __initconst apm_dmi_table[] = {
 	{
 		print_if_true,
 		KERN_WARNING "IBM T23 - BIOS 1.03b+ and controller firmware 1.02+ may be needed for Linux APM.",
@@ -2349,12 +2363,15 @@ static int __init apm_init(void)
 	 * code to that CPU.
 	 */
 	gdt = get_cpu_gdt_table(0);
+
+	pax_open_kernel();
 	set_desc_base(&gdt[APM_CS >> 3],
 		 (unsigned long)__va((unsigned long)apm_info.bios.cseg << 4));
 	set_desc_base(&gdt[APM_CS_16 >> 3],
 		 (unsigned long)__va((unsigned long)apm_info.bios.cseg_16 << 4));
 	set_desc_base(&gdt[APM_DS >> 3],
 		 (unsigned long)__va((unsigned long)apm_info.bios.dseg << 4));
+	pax_close_kernel();
 
 	proc_create("apm", 0, NULL, &apm_file_ops);
 
diff --git a/arch/x86/kernel/asm-offsets.c b/arch/x86/kernel/asm-offsets.c
index 5c04246..7492f2f 100644
--- a/arch/x86/kernel/asm-offsets.c
+++ b/arch/x86/kernel/asm-offsets.c
@@ -32,6 +32,8 @@ void common(void) {
 	OFFSET(TI_flags, thread_info, flags);
 	OFFSET(TI_status, thread_info, status);
 	OFFSET(TI_addr_limit, thread_info, addr_limit);
+	OFFSET(TI_lowest_stack, thread_info, lowest_stack);
+	DEFINE(TI_task_thread_sp0, offsetof(struct task_struct, thread.sp0) - offsetof(struct task_struct, tinfo));
 
 	BLANK();
 	OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx);
@@ -59,6 +61,7 @@ void common(void) {
 
 #ifdef CONFIG_PARAVIRT
 	BLANK();
+	OFFSET(PARAVIRT_enabled, pv_info, paravirt_enabled);
 	OFFSET(PARAVIRT_PATCH_pv_cpu_ops, paravirt_patch_template, pv_cpu_ops);
 	OFFSET(PARAVIRT_PATCH_pv_irq_ops, paravirt_patch_template, pv_irq_ops);
 	OFFSET(PV_IRQ_irq_disable, pv_irq_ops, irq_disable);
@@ -66,8 +69,26 @@ void common(void) {
 	OFFSET(PV_CPU_iret, pv_cpu_ops, iret);
 	OFFSET(PV_CPU_read_cr0, pv_cpu_ops, read_cr0);
 	OFFSET(PV_MMU_read_cr2, pv_mmu_ops, read_cr2);
+
+#ifdef CONFIG_PAX_KERNEXEC
+	OFFSET(PV_CPU_write_cr0, pv_cpu_ops, write_cr0);
 #endif
 
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	OFFSET(PV_MMU_read_cr3, pv_mmu_ops, read_cr3);
+	OFFSET(PV_MMU_write_cr3, pv_mmu_ops, write_cr3);
+#ifdef CONFIG_X86_64
+	OFFSET(PV_MMU_set_pgd_batched, pv_mmu_ops, set_pgd_batched);
+#endif
+#endif
+
+#endif
+
+	BLANK();
+	DEFINE(PAGE_SIZE_asm, PAGE_SIZE);
+	DEFINE(PAGE_SHIFT_asm, PAGE_SHIFT);
+	DEFINE(THREAD_SIZE_asm, THREAD_SIZE);
+
 #ifdef CONFIG_XEN
 	BLANK();
 	OFFSET(XEN_vcpu_info_mask, vcpu_info, evtchn_upcall_mask);
@@ -85,4 +106,5 @@ void common(void) {
 
 	BLANK();
 	DEFINE(PTREGS_SIZE, sizeof(struct pt_regs));
+	DEFINE(TSS_size, sizeof(struct tss_struct));
 }
diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile
index 4a8697f..8a13428 100644
--- a/arch/x86/kernel/cpu/Makefile
+++ b/arch/x86/kernel/cpu/Makefile
@@ -12,10 +12,6 @@ endif
 KCOV_INSTRUMENT_common.o := n
 KCOV_INSTRUMENT_perf_event.o := n
 
-# Make sure load_percpu_segment has no stackprotector
-nostackp := $(call cc-option, -fno-stack-protector)
-CFLAGS_common.o		:= $(nostackp)
-
 obj-y			:= intel_cacheinfo.o scattered.o topology.o
 obj-y			+= common.o
 obj-y			+= rdrand.o
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 7b76eb6..99cb9cc 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -776,7 +776,7 @@ static void init_amd(struct cpuinfo_x86 *c)
 static unsigned int amd_size_cache(struct cpuinfo_x86 *c, unsigned int size)
 {
 	/* AMD errata T13 (order #21922) */
-	if ((c->x86 == 6)) {
+	if (c->x86 == 6) {
 		/* Duron Rev A0 */
 		if (c->x86_model == 3 && c->x86_mask == 0)
 			size = 64;
diff --git a/arch/x86/kernel/cpu/bugs_64.c b/arch/x86/kernel/cpu/bugs_64.c
index a972ac4..938c163 100644
--- a/arch/x86/kernel/cpu/bugs_64.c
+++ b/arch/x86/kernel/cpu/bugs_64.c
@@ -10,6 +10,7 @@
 #include <asm/processor.h>
 #include <asm/mtrr.h>
 #include <asm/cacheflush.h>
+#include <asm/sections.h>
 
 void __init check_bugs(void)
 {
@@ -18,6 +19,7 @@ void __init check_bugs(void)
 	pr_info("CPU: ");
 	print_cpu_info(&boot_cpu_data);
 #endif
+	set_memory_nx((unsigned long)_sinitdata, (__START_KERNEL_map + KERNEL_IMAGE_SIZE - (unsigned long)_sinitdata) >> PAGE_SHIFT);
 	alternative_instructions();
 
 	/*
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index f45a4b9..4cf549c 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -92,60 +92,6 @@ static const struct cpu_dev default_cpu = {
 
 static const struct cpu_dev *this_cpu = &default_cpu;
 
-DEFINE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page) = { .gdt = {
-#ifdef CONFIG_X86_64
-	/*
-	 * We need valid kernel segments for data and code in long mode too
-	 * IRET will check the segment types  kkeil 2000/10/28
-	 * Also sysret mandates a special GDT layout
-	 *
-	 * TLS descriptors are currently at a different place compared to i386.
-	 * Hopefully nobody expects them at a fixed place (Wine?)
-	 */
-	[GDT_ENTRY_KERNEL32_CS]		= GDT_ENTRY_INIT(0xc09b, 0, 0xfffff),
-	[GDT_ENTRY_KERNEL_CS]		= GDT_ENTRY_INIT(0xa09b, 0, 0xfffff),
-	[GDT_ENTRY_KERNEL_DS]		= GDT_ENTRY_INIT(0xc093, 0, 0xfffff),
-	[GDT_ENTRY_DEFAULT_USER32_CS]	= GDT_ENTRY_INIT(0xc0fb, 0, 0xfffff),
-	[GDT_ENTRY_DEFAULT_USER_DS]	= GDT_ENTRY_INIT(0xc0f3, 0, 0xfffff),
-	[GDT_ENTRY_DEFAULT_USER_CS]	= GDT_ENTRY_INIT(0xa0fb, 0, 0xfffff),
-#else
-	[GDT_ENTRY_KERNEL_CS]		= GDT_ENTRY_INIT(0xc09a, 0, 0xfffff),
-	[GDT_ENTRY_KERNEL_DS]		= GDT_ENTRY_INIT(0xc092, 0, 0xfffff),
-	[GDT_ENTRY_DEFAULT_USER_CS]	= GDT_ENTRY_INIT(0xc0fa, 0, 0xfffff),
-	[GDT_ENTRY_DEFAULT_USER_DS]	= GDT_ENTRY_INIT(0xc0f2, 0, 0xfffff),
-	/*
-	 * Segments used for calling PnP BIOS have byte granularity.
-	 * They code segments and data segments have fixed 64k limits,
-	 * the transfer segment sizes are set at run time.
-	 */
-	/* 32-bit code */
-	[GDT_ENTRY_PNPBIOS_CS32]	= GDT_ENTRY_INIT(0x409a, 0, 0xffff),
-	/* 16-bit code */
-	[GDT_ENTRY_PNPBIOS_CS16]	= GDT_ENTRY_INIT(0x009a, 0, 0xffff),
-	/* 16-bit data */
-	[GDT_ENTRY_PNPBIOS_DS]		= GDT_ENTRY_INIT(0x0092, 0, 0xffff),
-	/* 16-bit data */
-	[GDT_ENTRY_PNPBIOS_TS1]		= GDT_ENTRY_INIT(0x0092, 0, 0),
-	/* 16-bit data */
-	[GDT_ENTRY_PNPBIOS_TS2]		= GDT_ENTRY_INIT(0x0092, 0, 0),
-	/*
-	 * The APM segments have byte granularity and their bases
-	 * are set at run time.  All have 64k limits.
-	 */
-	/* 32-bit code */
-	[GDT_ENTRY_APMBIOS_BASE]	= GDT_ENTRY_INIT(0x409a, 0, 0xffff),
-	/* 16-bit code */
-	[GDT_ENTRY_APMBIOS_BASE+1]	= GDT_ENTRY_INIT(0x009a, 0, 0xffff),
-	/* data */
-	[GDT_ENTRY_APMBIOS_BASE+2]	= GDT_ENTRY_INIT(0x4092, 0, 0xffff),
-
-	[GDT_ENTRY_ESPFIX_SS]		= GDT_ENTRY_INIT(0xc092, 0, 0xfffff),
-	[GDT_ENTRY_PERCPU]		= GDT_ENTRY_INIT(0xc092, 0, 0xfffff),
-	GDT_STACK_CANARY_INIT
-#endif
-} };
-EXPORT_PER_CPU_SYMBOL_GPL(gdt_page);
-
 static int __init x86_mpx_setup(char *s)
 {
 	/* require an exact match without trailing characters */
@@ -303,6 +249,109 @@ static __always_inline void setup_smap(struct cpuinfo_x86 *c)
 	}
 }
 
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+#ifdef CONFIG_X86_64
+static bool uderef_enabled __read_only = true;
+unsigned long pax_user_shadow_base __read_only;
+EXPORT_SYMBOL(pax_user_shadow_base);
+extern char pax_enter_kernel_user[];
+extern char pax_exit_kernel_user[];
+
+static int __init setup_pax_weakuderef(char *str)
+{
+	if (uderef_enabled)
+		pax_user_shadow_base = 1UL << TASK_SIZE_MAX_SHIFT;
+	return 1;
+}
+__setup("pax_weakuderef", setup_pax_weakuderef);
+#endif
+
+static int __init setup_pax_nouderef(char *str)
+{
+#ifdef CONFIG_X86_32
+	unsigned int cpu;
+	struct desc_struct *gdt;
+
+	for (cpu = 0; cpu < nr_cpu_ids; cpu++) {
+		gdt = get_cpu_gdt_table(cpu);
+		gdt[GDT_ENTRY_KERNEL_DS].type = 3;
+		gdt[GDT_ENTRY_KERNEL_DS].limit = 0xf;
+		gdt[GDT_ENTRY_DEFAULT_USER_CS].limit = 0xf;
+		gdt[GDT_ENTRY_DEFAULT_USER_DS].limit = 0xf;
+	}
+	loadsegment(ds, __KERNEL_DS);
+	loadsegment(es, __KERNEL_DS);
+	loadsegment(ss, __KERNEL_DS);
+#else
+	memcpy(pax_enter_kernel_user, (unsigned char []){0xc3}, 1);
+	memcpy(pax_exit_kernel_user, (unsigned char []){0xc3}, 1);
+	clone_pgd_mask = ~(pgdval_t)0UL;
+	pax_user_shadow_base = 0UL;
+	setup_clear_cpu_cap(X86_FEATURE_PCIDUDEREF);
+	uderef_enabled = false;
+#endif
+
+	return 0;
+}
+early_param("pax_nouderef", setup_pax_nouderef);
+#endif
+
+#ifdef CONFIG_X86_64
+static __init int setup_disable_pcid(char *arg)
+{
+	setup_clear_cpu_cap(X86_FEATURE_PCID);
+	setup_clear_cpu_cap(X86_FEATURE_INVPCID);
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	if (uderef_enabled)
+		pax_user_shadow_base = 1UL << TASK_SIZE_MAX_SHIFT;
+#endif
+
+	return 1;
+}
+__setup("nopcid", setup_disable_pcid);
+
+static void setup_pcid(struct cpuinfo_x86 *c)
+{
+	if (cpu_has(c, X86_FEATURE_PCID)) {
+		printk("PAX: PCID detected\n");
+		cr4_set_bits(X86_CR4_PCIDE);
+	} else
+		clear_cpu_cap(c, X86_FEATURE_INVPCID);
+
+	if (cpu_has(c, X86_FEATURE_INVPCID))
+		printk("PAX: INVPCID detected\n");
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	if (!uderef_enabled) {
+		printk("PAX: UDEREF disabled\n");
+		return;
+	}
+
+	if (!cpu_has(c, X86_FEATURE_PCID)) {
+		pax_open_kernel();
+		pax_user_shadow_base = 1UL << TASK_SIZE_MAX_SHIFT;
+		pax_close_kernel();
+		printk("PAX: slow and weak UDEREF enabled\n");
+		return;
+	}
+
+	set_cpu_cap(c, X86_FEATURE_PCIDUDEREF);
+
+	pax_open_kernel();
+	clone_pgd_mask = ~(pgdval_t)0UL;
+	pax_close_kernel();
+	if (pax_user_shadow_base)
+		printk("PAX: weak UDEREF enabled\n");
+	else {
+		set_cpu_cap(c, X86_FEATURE_STRONGUDEREF);
+		printk("PAX: strong UDEREF enabled\n");
+	}
+#endif
+
+}
+#endif
+
 /*
  * Protection Keys are not available in 32-bit mode.
  */
@@ -448,7 +497,7 @@ void switch_to_new_gdt(int cpu)
 {
 	struct desc_ptr gdt_descr;
 
-	gdt_descr.address = (long)get_cpu_gdt_table(cpu);
+	gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu);
 	gdt_descr.size = GDT_SIZE - 1;
 	load_gdt(&gdt_descr);
 	/* Reload the per-cpu base */
@@ -1004,6 +1053,20 @@ static void identify_cpu(struct cpuinfo_x86 *c)
 	setup_smep(c);
 	setup_smap(c);
 
+#ifdef CONFIG_X86_32
+#ifdef CONFIG_PAX_PAGEEXEC
+	if (!(__supported_pte_mask & _PAGE_NX))
+		clear_cpu_cap(c, X86_FEATURE_PSE);
+#endif
+#if defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
+	clear_cpu_cap(c, X86_FEATURE_SEP);
+#endif
+#endif
+
+#ifdef CONFIG_X86_64
+	setup_pcid(c);
+#endif
+
 	/*
 	 * The vendor-specific functions might have changed features.
 	 * Now we do "generic changes."
@@ -1081,7 +1144,7 @@ void enable_sep_cpu(void)
 	int cpu;
 
 	cpu = get_cpu();
-	tss = &per_cpu(cpu_tss, cpu);
+	tss = cpu_tss + cpu;
 
 	if (!boot_cpu_has(X86_FEATURE_SEP))
 		goto out;
@@ -1227,10 +1290,12 @@ static __init int setup_disablecpuid(char *arg)
 }
 __setup("clearcpuid=", setup_disablecpuid);
 
+DEFINE_PER_CPU(struct thread_info *, current_tinfo) = &init_task.tinfo;
+EXPORT_PER_CPU_SYMBOL(current_tinfo);
+
 #ifdef CONFIG_X86_64
-struct desc_ptr idt_descr = { NR_VECTORS * 16 - 1, (unsigned long) idt_table };
-struct desc_ptr debug_idt_descr = { NR_VECTORS * 16 - 1,
-				    (unsigned long) debug_idt_table };
+struct desc_ptr idt_descr __read_only = { NR_VECTORS * 16 - 1, (unsigned long) idt_table };
+const struct desc_ptr debug_idt_descr = { NR_VECTORS * 16 - 1, (unsigned long) debug_idt_table };
 
 DEFINE_PER_CPU_FIRST(union irq_stack_union,
 		     irq_stack_union) __aligned(PAGE_SIZE) __visible;
@@ -1342,21 +1407,21 @@ EXPORT_PER_CPU_SYMBOL(current_task);
 DEFINE_PER_CPU(int, __preempt_count) = INIT_PREEMPT_COUNT;
 EXPORT_PER_CPU_SYMBOL(__preempt_count);
 
+#ifdef CONFIG_CC_STACKPROTECTOR
+DEFINE_PER_CPU_ALIGNED(struct stack_canary, stack_canary);
+#endif
+
+#endif	/* CONFIG_X86_64 */
+
 /*
  * On x86_32, vm86 modifies tss.sp0, so sp0 isn't a reliable way to find
  * the top of the kernel stack.  Use an extra percpu variable to track the
  * top of the kernel stack directly.
  */
 DEFINE_PER_CPU(unsigned long, cpu_current_top_of_stack) =
-	(unsigned long)&init_thread_union + THREAD_SIZE;
+	(unsigned long)&init_thread_union - 16 + THREAD_SIZE;
 EXPORT_PER_CPU_SYMBOL(cpu_current_top_of_stack);
 
-#ifdef CONFIG_CC_STACKPROTECTOR
-DEFINE_PER_CPU_ALIGNED(struct stack_canary, stack_canary);
-#endif
-
-#endif	/* CONFIG_X86_64 */
-
 /*
  * Clear all 6 debug registers:
  */
@@ -1432,7 +1497,7 @@ void cpu_init(void)
 	 */
 	load_ucode_ap();
 
-	t = &per_cpu(cpu_tss, cpu);
+	t = cpu_tss + cpu;
 	oist = &per_cpu(orig_ist, cpu);
 
 #ifdef CONFIG_NUMA
@@ -1464,7 +1529,6 @@ void cpu_init(void)
 	wrmsrl(MSR_KERNEL_GS_BASE, 0);
 	barrier();
 
-	x86_configure_nx();
 	x2apic_setup();
 
 	/*
@@ -1516,7 +1580,7 @@ void cpu_init(void)
 {
 	int cpu = smp_processor_id();
 	struct task_struct *curr = current;
-	struct tss_struct *t = &per_cpu(cpu_tss, cpu);
+	struct tss_struct *t = cpu_tss + cpu;
 	struct thread_struct *thread = &curr->thread;
 
 	wait_for_master_cpu(cpu);
diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c
index de6626c..c84e8c1 100644
--- a/arch/x86/kernel/cpu/intel_cacheinfo.c
+++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
@@ -519,25 +519,23 @@ cache_private_attrs_is_visible(struct kobject *kobj,
 	return 0;
 }
 
+static struct attribute *amd_l3_attrs[4];
+
 static struct attribute_group cache_private_group = {
 	.is_visible = cache_private_attrs_is_visible,
+	.attrs = amd_l3_attrs,
 };
 
 static void init_amd_l3_attrs(void)
 {
 	int n = 1;
-	static struct attribute **amd_l3_attrs;
-
-	if (amd_l3_attrs) /* already initialized */
-		return;
 
 	if (amd_nb_has_feature(AMD_NB_L3_INDEX_DISABLE))
 		n += 2;
 	if (amd_nb_has_feature(AMD_NB_L3_PARTITIONING))
 		n += 1;
 
-	amd_l3_attrs = kcalloc(n, sizeof(*amd_l3_attrs), GFP_KERNEL);
-	if (!amd_l3_attrs)
+	if (n > 1 && amd_l3_attrs[0]) /* already initialized */
 		return;
 
 	n = 0;
@@ -547,8 +545,6 @@ static void init_amd_l3_attrs(void)
 	}
 	if (amd_nb_has_feature(AMD_NB_L3_PARTITIONING))
 		amd_l3_attrs[n++] = &dev_attr_subcaches.attr;
-
-	cache_private_group.attrs = amd_l3_attrs;
 }
 
 const struct attribute_group *
@@ -559,7 +555,7 @@ cache_get_priv_group(struct cacheinfo *this_leaf)
 	if (this_leaf->level < 3 || !nb)
 		return NULL;
 
-	if (nb && nb->l3_cache.indices)
+	if (nb->l3_cache.indices)
 		init_amd_l3_attrs();
 
 	return &cache_private_group;
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index f0c921b..2c7b33b 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -47,6 +47,7 @@
 #include <asm/tlbflush.h>
 #include <asm/mce.h>
 #include <asm/msr.h>
+#include <asm/local.h>
 
 #include "mce-internal.h"
 
@@ -211,8 +212,7 @@ static struct notifier_block mce_srao_nb;
 void mce_register_decode_chain(struct notifier_block *nb)
 {
 	/* Ensure SRAO notifier has the highest priority in the decode chain. */
-	if (nb != &mce_srao_nb && nb->priority == INT_MAX)
-		nb->priority -= 1;
+	BUG_ON(nb != &mce_srao_nb && nb->priority == INT_MAX);
 
 	atomic_notifier_chain_register(&x86_mce_decoder_chain, nb);
 }
@@ -236,7 +236,7 @@ static void print_mce(struct mce *m)
 			!(m->mcgstatus & MCG_STATUS_EIPV) ? " !INEXACT!" : "",
 				m->cs, m->ip);
 
-		if (m->cs == __KERNEL_CS)
+		if (m->cs == __KERNEL_CS || m->cs == __KERNEXEC_KERNEL_CS)
 			print_symbol("{%s}", m->ip);
 		pr_cont("\n");
 	}
@@ -269,10 +269,10 @@ static void print_mce(struct mce *m)
 
 #define PANIC_TIMEOUT 5 /* 5 seconds */
 
-static atomic_t mce_panicked;
+static atomic_unchecked_t mce_panicked;
 
 static int fake_panic;
-static atomic_t mce_fake_panicked;
+static atomic_unchecked_t mce_fake_panicked;
 
 /* Panic in progress. Enable interrupts and wait for final IPI */
 static void wait_for_panic(void)
@@ -296,7 +296,7 @@ static void mce_panic(const char *msg, struct mce *final, char *exp)
 		/*
 		 * Make sure only one CPU runs in machine check panic
 		 */
-		if (atomic_inc_return(&mce_panicked) > 1)
+		if (atomic_inc_return_unchecked(&mce_panicked) > 1)
 			wait_for_panic();
 		barrier();
 
@@ -304,7 +304,7 @@ static void mce_panic(const char *msg, struct mce *final, char *exp)
 		console_verbose();
 	} else {
 		/* Don't log too much for fake panic */
-		if (atomic_inc_return(&mce_fake_panicked) > 1)
+		if (atomic_inc_return_unchecked(&mce_fake_panicked) > 1)
 			return;
 	}
 	/* First print corrected ones that are still unlogged */
@@ -343,7 +343,7 @@ static void mce_panic(const char *msg, struct mce *final, char *exp)
 	if (!fake_panic) {
 		if (panic_timeout == 0)
 			panic_timeout = mca_cfg.panic_timeout;
-		panic(msg);
+		panic("%s", msg);
 	} else
 		pr_emerg(HW_ERR "Fake kernel panic: %s\n", msg);
 }
@@ -717,7 +717,7 @@ static int mce_timed_out(u64 *t, const char *msg)
 	 * might have been modified by someone else.
 	 */
 	rmb();
-	if (atomic_read(&mce_panicked))
+	if (atomic_read_unchecked(&mce_panicked))
 		wait_for_panic();
 	if (!mca_cfg.monarch_timeout)
 		goto out;
@@ -1684,7 +1684,7 @@ static void unexpected_machine_check(struct pt_regs *regs, long error_code)
 }
 
 /* Call the installed machine check handler for this CPU setup. */
-void (*machine_check_vector)(struct pt_regs *, long error_code) =
+void (*machine_check_vector)(struct pt_regs *, long error_code) __read_only =
 						unexpected_machine_check;
 
 /*
@@ -1713,7 +1713,9 @@ void mcheck_cpu_init(struct cpuinfo_x86 *c)
 		return;
 	}
 
+	pax_open_kernel();
 	machine_check_vector = do_machine_check;
+	pax_close_kernel();
 
 	__mcheck_cpu_init_generic();
 	__mcheck_cpu_init_vendor(c);
@@ -1744,7 +1746,7 @@ void mcheck_cpu_clear(struct cpuinfo_x86 *c)
  */
 
 static DEFINE_SPINLOCK(mce_chrdev_state_lock);
-static int mce_chrdev_open_count;	/* #times opened */
+static local_t mce_chrdev_open_count;	/* #times opened */
 static int mce_chrdev_open_exclu;	/* already open exclusive? */
 
 static int mce_chrdev_open(struct inode *inode, struct file *file)
@@ -1752,7 +1754,7 @@ static int mce_chrdev_open(struct inode *inode, struct file *file)
 	spin_lock(&mce_chrdev_state_lock);
 
 	if (mce_chrdev_open_exclu ||
-	    (mce_chrdev_open_count && (file->f_flags & O_EXCL))) {
+	    (local_read(&mce_chrdev_open_count) && (file->f_flags & O_EXCL))) {
 		spin_unlock(&mce_chrdev_state_lock);
 
 		return -EBUSY;
@@ -1760,7 +1762,7 @@ static int mce_chrdev_open(struct inode *inode, struct file *file)
 
 	if (file->f_flags & O_EXCL)
 		mce_chrdev_open_exclu = 1;
-	mce_chrdev_open_count++;
+	local_inc(&mce_chrdev_open_count);
 
 	spin_unlock(&mce_chrdev_state_lock);
 
@@ -1771,7 +1773,7 @@ static int mce_chrdev_release(struct inode *inode, struct file *file)
 {
 	spin_lock(&mce_chrdev_state_lock);
 
-	mce_chrdev_open_count--;
+	local_dec(&mce_chrdev_open_count);
 	mce_chrdev_open_exclu = 0;
 
 	spin_unlock(&mce_chrdev_state_lock);
@@ -2463,7 +2465,7 @@ static __init void mce_init_banks(void)
 
 	for (i = 0; i < mca_cfg.banks; i++) {
 		struct mce_bank *b = &mce_banks[i];
-		struct device_attribute *a = &b->attr;
+		device_attribute_no_const *a = &b->attr;
 
 		sysfs_attr_init(&a->attr);
 		a->attr.name	= b->attrname;
@@ -2570,7 +2572,7 @@ struct dentry *mce_get_debugfs_dir(void)
 static void mce_reset(void)
 {
 	cpu_missing = 0;
-	atomic_set(&mce_fake_panicked, 0);
+	atomic_set_unchecked(&mce_fake_panicked, 0);
 	atomic_set(&mce_executing, 0);
 	atomic_set(&mce_callin, 0);
 	atomic_set(&global_nwo, 0);
diff --git a/arch/x86/kernel/cpu/mcheck/p5.c b/arch/x86/kernel/cpu/mcheck/p5.c
index 2a0717b..7fbc641 100644
--- a/arch/x86/kernel/cpu/mcheck/p5.c
+++ b/arch/x86/kernel/cpu/mcheck/p5.c
@@ -12,6 +12,7 @@
 #include <asm/tlbflush.h>
 #include <asm/mce.h>
 #include <asm/msr.h>
+#include <asm/pgtable.h>
 
 /* By default disabled */
 int mce_p5_enabled __read_mostly;
@@ -52,7 +53,9 @@ void intel_p5_mcheck_init(struct cpuinfo_x86 *c)
 	if (!cpu_has(c, X86_FEATURE_MCE))
 		return;
 
+	pax_open_kernel();
 	machine_check_vector = pentium_machine_check;
+	pax_close_kernel();
 	/* Make sure the vector pointer is visible before we enable MCEs: */
 	wmb();
 
diff --git a/arch/x86/kernel/cpu/mcheck/winchip.c b/arch/x86/kernel/cpu/mcheck/winchip.c
index c6a722e..4016140 100644
--- a/arch/x86/kernel/cpu/mcheck/winchip.c
+++ b/arch/x86/kernel/cpu/mcheck/winchip.c
@@ -11,6 +11,7 @@
 #include <asm/tlbflush.h>
 #include <asm/mce.h>
 #include <asm/msr.h>
+#include <asm/pgtable.h>
 
 /* Machine check handler for WinChip C6: */
 static void winchip_machine_check(struct pt_regs *regs, long error_code)
@@ -28,7 +29,9 @@ void winchip_mcheck_init(struct cpuinfo_x86 *c)
 {
 	u32 lo, hi;
 
+	pax_open_kernel();
 	machine_check_vector = winchip_machine_check;
+	pax_close_kernel();
 	/* Make sure the vector pointer is visible before we enable MCEs: */
 	wmb();
 
diff --git a/arch/x86/kernel/cpu/microcode/intel.c b/arch/x86/kernel/cpu/microcode/intel.c
index cbb3cf0..f3b73a3 100644
--- a/arch/x86/kernel/cpu/microcode/intel.c
+++ b/arch/x86/kernel/cpu/microcode/intel.c
@@ -1003,13 +1003,13 @@ static enum ucode_state request_microcode_fw(int cpu, struct device *device,
 
 static int get_ucode_user(void *to, const void *from, size_t n)
 {
-	return copy_from_user(to, from, n);
+	return copy_from_user(to, (const void __force_user *)from, n);
 }
 
 static enum ucode_state
 request_microcode_user(int cpu, const void __user *buf, size_t size)
 {
-	return generic_load_microcode(cpu, (void *)buf, size, &get_ucode_user);
+	return generic_load_microcode(cpu, (__force_kernel void *)buf, size, &get_ucode_user);
 }
 
 static void microcode_fini_cpu(int cpu)
diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c
index 10c11b4..18c4d71 100644
--- a/arch/x86/kernel/cpu/mshyperv.c
+++ b/arch/x86/kernel/cpu/mshyperv.c
@@ -205,7 +205,7 @@ static void __init ms_hyperv_init_platform(void)
 		x86_platform.get_nmi_reason = hv_get_nmi_reason;
 }
 
-const __refconst struct hypervisor_x86 x86_hyper_ms_hyperv = {
+const struct hypervisor_x86 x86_hyper_ms_hyperv = {
 	.name			= "Microsoft HyperV",
 	.detect			= ms_hyperv_platform,
 	.init_platform		= ms_hyperv_init_platform,
diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c
index 19f5736..8f92a72 100644
--- a/arch/x86/kernel/cpu/mtrr/generic.c
+++ b/arch/x86/kernel/cpu/mtrr/generic.c
@@ -722,7 +722,8 @@ static DEFINE_RAW_SPINLOCK(set_atomicity_lock);
  * The caller must ensure that local interrupts are disabled and
  * are reenabled after post_set() has been called.
  */
-static void prepare_set(void) __acquires(set_atomicity_lock)
+static void prepare_set(void) __acquires(&set_atomicity_lock);
+static void prepare_set(void)
 {
 	unsigned long cr0;
 
@@ -758,7 +759,8 @@ static void prepare_set(void) __acquires(set_atomicity_lock)
 	wbinvd();
 }
 
-static void post_set(void) __releases(set_atomicity_lock)
+static void post_set(void) __releases(&set_atomicity_lock);
+static void post_set(void)
 {
 	/* Flush TLBs (no need to flush caches - they are disabled) */
 	count_vm_tlb_event(NR_TLB_LOCAL_FLUSH_ALL);
diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
index 10f8d47..481f5b4 100644
--- a/arch/x86/kernel/cpu/mtrr/main.c
+++ b/arch/x86/kernel/cpu/mtrr/main.c
@@ -72,7 +72,7 @@ static DEFINE_MUTEX(mtrr_mutex);
 u64 size_or_mask, size_and_mask;
 static bool mtrr_aps_delayed_init;
 
-static const struct mtrr_ops *mtrr_ops[X86_VENDOR_NUM];
+static const struct mtrr_ops *mtrr_ops[X86_VENDOR_NUM] __read_only;
 
 const struct mtrr_ops *mtrr_if;
 
diff --git a/arch/x86/kernel/cpu/mtrr/mtrr.h b/arch/x86/kernel/cpu/mtrr/mtrr.h
index 951884d..4796b75 100644
--- a/arch/x86/kernel/cpu/mtrr/mtrr.h
+++ b/arch/x86/kernel/cpu/mtrr/mtrr.h
@@ -25,7 +25,7 @@ struct mtrr_ops {
 	int	(*validate_add_page)(unsigned long base, unsigned long size,
 				     unsigned int type);
 	int	(*have_wrcomb)(void);
-};
+} __do_const;
 
 extern int generic_get_free_region(unsigned long base, unsigned long size,
 				   int replace_reg);
diff --git a/arch/x86/kernel/cpu/vmware.c b/arch/x86/kernel/cpu/vmware.c
index 364e583..1124b95 100644
--- a/arch/x86/kernel/cpu/vmware.c
+++ b/arch/x86/kernel/cpu/vmware.c
@@ -136,7 +136,7 @@ static bool __init vmware_legacy_x2apic_available(void)
 	       (eax & (1 << VMWARE_PORT_CMD_LEGACY_X2APIC)) != 0;
 }
 
-const __refconst struct hypervisor_x86 x86_hyper_vmware = {
+const struct hypervisor_x86 x86_hyper_vmware = {
 	.name			= "VMware",
 	.detect			= vmware_platform,
 	.set_cpu_features	= vmware_set_cpu_features,
diff --git a/arch/x86/kernel/crash_dump_64.c b/arch/x86/kernel/crash_dump_64.c
index afa64ad..dce67dd 100644
--- a/arch/x86/kernel/crash_dump_64.c
+++ b/arch/x86/kernel/crash_dump_64.c
@@ -36,7 +36,7 @@ ssize_t copy_oldmem_page(unsigned long pfn, char *buf,
 		return -ENOMEM;
 
 	if (userbuf) {
-		if (copy_to_user(buf, vaddr + offset, csize)) {
+		if (copy_to_user((char __force_user *)buf, vaddr + offset, csize)) {
 			iounmap(vaddr);
 			return -EFAULT;
 		}
diff --git a/arch/x86/kernel/doublefault.c b/arch/x86/kernel/doublefault.c
index f6dfd93..892ade4 100644
--- a/arch/x86/kernel/doublefault.c
+++ b/arch/x86/kernel/doublefault.c
@@ -12,7 +12,7 @@
 
 #define DOUBLEFAULT_STACKSIZE (1024)
 static unsigned long doublefault_stack[DOUBLEFAULT_STACKSIZE];
-#define STACK_START (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE)
+#define STACK_START (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE-2)
 
 #define ptr_ok(x) ((x) > PAGE_OFFSET && (x) < PAGE_OFFSET + MAXMEM)
 
@@ -22,7 +22,7 @@ static void doublefault_fn(void)
 	unsigned long gdt, tss;
 
 	native_store_gdt(&gdt_desc);
-	gdt = gdt_desc.address;
+	gdt = (unsigned long)gdt_desc.address;
 
 	printk(KERN_EMERG "PANIC: double fault, gdt at %08lx [%d bytes]\n", gdt, gdt_desc.size);
 
@@ -59,10 +59,10 @@ struct tss_struct doublefault_tss __cacheline_aligned = {
 		/* 0x2 bit is always set */
 		.flags		= X86_EFLAGS_SF | 0x2,
 		.sp		= STACK_START,
-		.es		= __USER_DS,
+		.es		= __KERNEL_DS,
 		.cs		= __KERNEL_CS,
 		.ss		= __KERNEL_DS,
-		.ds		= __USER_DS,
+		.ds		= __KERNEL_DS,
 		.fs		= __KERNEL_PERCPU,
 
 		.__cr3		= __pa_nodebug(swapper_pg_dir),
diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
index 8efa57a..9750a3d 100644
--- a/arch/x86/kernel/dumpstack.c
+++ b/arch/x86/kernel/dumpstack.c
@@ -2,6 +2,9 @@
  *  Copyright (C) 1991, 1992  Linus Torvalds
  *  Copyright (C) 2000, 2001, 2002 Andi Kleen, SuSE Labs
  */
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+#define __INCLUDED_BY_HIDESYM 1
+#endif
 #include <linux/kallsyms.h>
 #include <linux/kprobes.h>
 #include <linux/uaccess.h>
@@ -35,23 +38,21 @@ static void printk_stack_address(unsigned long address, int reliable,
 
 void printk_address(unsigned long address)
 {
-	pr_cont(" [<%p>] %pS\n", (void *)address, (void *)address);
+	pr_cont(" [<%p>] %pA\n", (void *)address, (void *)address);
 }
 
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
 static void
 print_ftrace_graph_addr(unsigned long addr, void *data,
 			const struct stacktrace_ops *ops,
-			struct thread_info *tinfo, int *graph)
+			struct task_struct *task, int *graph)
 {
-	struct task_struct *task;
 	unsigned long ret_addr;
 	int index;
 
 	if (addr != (unsigned long)return_to_handler)
 		return;
 
-	task = tinfo->task;
 	index = task->curr_ret_stack;
 
 	if (!task->ret_stack || index < *graph)
@@ -68,7 +69,7 @@ print_ftrace_graph_addr(unsigned long addr, void *data,
 static inline void
 print_ftrace_graph_addr(unsigned long addr, void *data,
 			const struct stacktrace_ops *ops,
-			struct thread_info *tinfo, int *graph)
+			struct task_struct *task, int *graph)
 { }
 #endif
 
@@ -79,10 +80,8 @@ print_ftrace_graph_addr(unsigned long addr, void *data,
  * severe exception (double fault, nmi, stack fault, debug, mce) hardware stack
  */
 
-static inline int valid_stack_ptr(struct thread_info *tinfo,
-			void *p, unsigned int size, void *end)
+static inline int valid_stack_ptr(void *t, void *p, unsigned int size, void *end)
 {
-	void *t = tinfo;
 	if (end) {
 		if (p < end && p >= (end-THREAD_SIZE))
 			return 1;
@@ -93,14 +92,14 @@ static inline int valid_stack_ptr(struct thread_info *tinfo,
 }
 
 unsigned long
-print_context_stack(struct thread_info *tinfo,
+print_context_stack(struct task_struct *task, void *stack_start,
 		unsigned long *stack, unsigned long bp,
 		const struct stacktrace_ops *ops, void *data,
 		unsigned long *end, int *graph)
 {
 	struct stack_frame *frame = (struct stack_frame *)bp;
 
-	while (valid_stack_ptr(tinfo, stack, sizeof(*stack), end)) {
+	while (valid_stack_ptr(stack_start, stack, sizeof(*stack), end)) {
 		unsigned long addr;
 
 		addr = *stack;
@@ -112,7 +111,7 @@ print_context_stack(struct thread_info *tinfo,
 			} else {
 				ops->address(data, addr, 0);
 			}
-			print_ftrace_graph_addr(addr, data, ops, tinfo, graph);
+			print_ftrace_graph_addr(addr, data, ops, task, graph);
 		}
 		stack++;
 	}
@@ -121,7 +120,7 @@ print_context_stack(struct thread_info *tinfo,
 EXPORT_SYMBOL_GPL(print_context_stack);
 
 unsigned long
-print_context_stack_bp(struct thread_info *tinfo,
+print_context_stack_bp(struct task_struct *task, void *stack_start,
 		       unsigned long *stack, unsigned long bp,
 		       const struct stacktrace_ops *ops, void *data,
 		       unsigned long *end, int *graph)
@@ -129,7 +128,7 @@ print_context_stack_bp(struct thread_info *tinfo,
 	struct stack_frame *frame = (struct stack_frame *)bp;
 	unsigned long *ret_addr = &frame->return_address;
 
-	while (valid_stack_ptr(tinfo, ret_addr, sizeof(*ret_addr), end)) {
+	while (valid_stack_ptr(stack_start, ret_addr, sizeof(*ret_addr), end)) {
 		unsigned long addr = *ret_addr;
 
 		if (!__kernel_text_address(addr))
@@ -139,7 +138,7 @@ print_context_stack_bp(struct thread_info *tinfo,
 			break;
 		frame = frame->next_frame;
 		ret_addr = &frame->return_address;
-		print_ftrace_graph_addr(addr, data, ops, tinfo, graph);
+		print_ftrace_graph_addr(addr, data, ops, task, graph);
 	}
 
 	return (unsigned long)frame;
@@ -228,6 +227,8 @@ unsigned long oops_begin(void)
 EXPORT_SYMBOL_GPL(oops_begin);
 NOKPROBE_SYMBOL(oops_begin);
 
+extern void gr_handle_kernel_exploit(void);
+
 void oops_end(unsigned long flags, struct pt_regs *regs, int signr)
 {
 	if (regs && kexec_should_crash(current))
@@ -249,7 +250,10 @@ void oops_end(unsigned long flags, struct pt_regs *regs, int signr)
 		panic("Fatal exception in interrupt");
 	if (panic_on_oops)
 		panic("Fatal exception");
-	do_exit(signr);
+
+	gr_handle_kernel_exploit();
+
+	do_group_exit(signr);
 }
 NOKPROBE_SYMBOL(oops_end);
 
diff --git a/arch/x86/kernel/dumpstack_32.c b/arch/x86/kernel/dumpstack_32.c
index 464ffd6..01f2cda 100644
--- a/arch/x86/kernel/dumpstack_32.c
+++ b/arch/x86/kernel/dumpstack_32.c
@@ -61,15 +61,14 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
 		bp = stack_frame(task, regs);
 
 	for (;;) {
-		struct thread_info *context;
+		void *stack_start = (void *)((unsigned long)stack & ~(THREAD_SIZE-1));
 		void *end_stack;
 
 		end_stack = is_hardirq_stack(stack, cpu);
 		if (!end_stack)
 			end_stack = is_softirq_stack(stack, cpu);
 
-		context = task_thread_info(task);
-		bp = ops->walk_stack(context, stack, bp, ops, data,
+		bp = ops->walk_stack(task, stack_start, stack, bp, ops, data,
 				     end_stack, &graph);
 
 		/* Stop if not on irq stack */
@@ -137,16 +136,17 @@ void show_regs(struct pt_regs *regs)
 		unsigned int code_len = code_bytes;
 		unsigned char c;
 		u8 *ip;
+		unsigned long cs_base = get_desc_base(&get_cpu_gdt_table(0)[(0xffff & regs->cs) >> 3]);
 
 		pr_emerg("Stack:\n");
 		show_stack_log_lvl(NULL, regs, &regs->sp, 0, KERN_EMERG);
 
 		pr_emerg("Code:");
 
-		ip = (u8 *)regs->ip - code_prologue;
+		ip = (u8 *)regs->ip - code_prologue + cs_base;
 		if (ip < (u8 *)PAGE_OFFSET || probe_kernel_address(ip, c)) {
 			/* try starting at IP */
-			ip = (u8 *)regs->ip;
+			ip = (u8 *)regs->ip + cs_base;
 			code_len = code_len - code_prologue + 1;
 		}
 		for (i = 0; i < code_len; i++, ip++) {
@@ -155,7 +155,7 @@ void show_regs(struct pt_regs *regs)
 				pr_cont("  Bad EIP value.");
 				break;
 			}
-			if (ip == (u8 *)regs->ip)
+			if (ip == (u8 *)regs->ip + cs_base)
 				pr_cont(" <%02x>", c);
 			else
 				pr_cont(" %02x", c);
@@ -168,6 +168,7 @@ int is_valid_bugaddr(unsigned long ip)
 {
 	unsigned short ud2;
 
+	ip = ktla_ktva(ip);
 	if (ip < PAGE_OFFSET)
 		return 0;
 	if (probe_kernel_address((unsigned short *)ip, ud2))
@@ -175,3 +176,15 @@ int is_valid_bugaddr(unsigned long ip)
 
 	return ud2 == 0x0b0f;
 }
+
+#if defined(CONFIG_PAX_MEMORY_STACKLEAK) || defined(CONFIG_PAX_USERCOPY)
+void __used pax_check_alloca(unsigned long size)
+{
+	unsigned long sp = (unsigned long)&sp, stack_left;
+
+	/* all kernel stacks are of the same size */
+	stack_left = sp & (THREAD_SIZE - 1);
+	BUG_ON(stack_left < 256 || size >= stack_left - 256);
+}
+EXPORT_SYMBOL(pax_check_alloca);
+#endif
diff --git a/arch/x86/kernel/dumpstack_64.c b/arch/x86/kernel/dumpstack_64.c
index 5f1c626..059e830 100644
--- a/arch/x86/kernel/dumpstack_64.c
+++ b/arch/x86/kernel/dumpstack_64.c
@@ -153,12 +153,12 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
 		const struct stacktrace_ops *ops, void *data)
 {
 	const unsigned cpu = get_cpu();
-	struct thread_info *tinfo;
 	unsigned long *irq_stack = (unsigned long *)per_cpu(irq_stack_ptr, cpu);
 	unsigned long dummy;
 	unsigned used = 0;
 	int graph = 0;
 	int done = 0;
+	void *stack_start;
 
 	if (!task)
 		task = current;
@@ -179,7 +179,6 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
 	 * current stack address. If the stacks consist of nested
 	 * exceptions
 	 */
-	tinfo = task_thread_info(task);
 	while (!done) {
 		unsigned long *stack_end;
 		enum stack_type stype;
@@ -192,17 +191,19 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
 		done = 1;
 
 		switch (stype) {
-
-		/* Break out early if we are on the thread stack */
 		case STACK_IS_NORMAL:
+			/*
+			 * This handles the process stack:
+			 */
+			stack_start = (void *)((unsigned long)stack & ~(THREAD_SIZE-1));
+			bp = ops->walk_stack(task, stack_start, stack, bp, ops, data, NULL, &graph);
 			break;
 
 		case STACK_IS_EXCEPTION:
-
 			if (ops->stack(data, id) < 0)
 				break;
 
-			bp = ops->walk_stack(tinfo, stack, bp, ops,
+			bp = ops->walk_stack(task, stack_end - EXCEPTION_STKSZ, stack, bp, ops,
 					     data, stack_end, &graph);
 			ops->stack(data, "<EOE>");
 			/*
@@ -210,15 +211,16 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
 			 * second-to-last pointer (index -2 to end) in the
 			 * exception stack:
 			 */
+			if ((u16)stack_end[-1] != __KERNEL_DS)
+				goto out;
 			stack = (unsigned long *) stack_end[-2];
 			done = 0;
 			break;
 
 		case STACK_IS_IRQ:
-
 			if (ops->stack(data, "IRQ") < 0)
 				break;
-			bp = ops->walk_stack(tinfo, stack, bp,
+			bp = ops->walk_stack(task, irq_stack, stack, bp,
 				     ops, data, stack_end, &graph);
 			/*
 			 * We link to the next stack (which would be
@@ -237,10 +239,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
 		}
 	}
 
-	/*
-	 * This handles the process stack:
-	 */
-	bp = ops->walk_stack(tinfo, stack, bp, ops, data, NULL, &graph);
+out:
 	put_cpu();
 }
 EXPORT_SYMBOL(dump_trace);
@@ -347,8 +346,55 @@ int is_valid_bugaddr(unsigned long ip)
 {
 	unsigned short ud2;
 
-	if (__copy_from_user(&ud2, (const void __user *) ip, sizeof(ud2)))
+	if (probe_kernel_address((unsigned short *)ip, ud2))
 		return 0;
 
 	return ud2 == 0x0b0f;
 }
+
+#if defined(CONFIG_PAX_MEMORY_STACKLEAK) || defined(CONFIG_PAX_USERCOPY)
+void __used pax_check_alloca(unsigned long size)
+{
+	unsigned long sp = (unsigned long)&sp, stack_start, stack_end;
+	unsigned cpu, used;
+	char *id;
+
+	/* check the process stack first */
+	stack_start = (unsigned long)task_stack_page(current);
+	stack_end = stack_start + THREAD_SIZE;
+	if (likely(stack_start <= sp && sp < stack_end)) {
+		unsigned long stack_left = sp & (THREAD_SIZE - 1);
+		BUG_ON(stack_left < 256 || size >= stack_left - 256);
+		return;
+	}
+
+	cpu = get_cpu();
+
+	/* check the irq stacks */
+	stack_end = (unsigned long)per_cpu(irq_stack_ptr, cpu);
+	stack_start = stack_end - IRQ_STACK_SIZE;
+	if (stack_start <= sp && sp < stack_end) {
+		unsigned long stack_left = sp & (IRQ_STACK_SIZE - 1);
+		put_cpu();
+		BUG_ON(stack_left < 256 || size >= stack_left - 256);
+		return;
+	}
+
+	/* check the exception stacks */
+	used = 0;
+	stack_end = (unsigned long)in_exception_stack(cpu, sp, &used, &id);
+	stack_start = stack_end - EXCEPTION_STKSZ;
+	if (stack_end && stack_start <= sp && sp < stack_end) {
+		unsigned long stack_left = sp & (EXCEPTION_STKSZ - 1);
+		put_cpu();
+		BUG_ON(stack_left < 256 || size >= stack_left - 256);
+		return;
+	}
+
+	put_cpu();
+
+	/* unknown stack */
+	BUG();
+}
+EXPORT_SYMBOL(pax_check_alloca);
+#endif
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 621b501..9e7da88 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -804,8 +804,8 @@ unsigned long __init e820_end_of_low_ram_pfn(void)
 
 static void early_panic(char *msg)
 {
-	early_printk(msg);
-	panic(msg);
+	early_printk("%s", msg);
+	panic("%s", msg);
 }
 
 static int userdef __initdata;
diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c
index 8a12199..e63bebf 100644
--- a/arch/x86/kernel/early_printk.c
+++ b/arch/x86/kernel/early_printk.c
@@ -7,6 +7,7 @@
 #include <linux/pci_regs.h>
 #include <linux/pci_ids.h>
 #include <linux/errno.h>
+#include <linux/sched.h>
 #include <asm/io.h>
 #include <asm/processor.h>
 #include <asm/fcntl.h>
diff --git a/arch/x86/kernel/espfix_64.c b/arch/x86/kernel/espfix_64.c
index 4d38416..ec7cc4e 100644
--- a/arch/x86/kernel/espfix_64.c
+++ b/arch/x86/kernel/espfix_64.c
@@ -41,6 +41,7 @@
 #include <asm/pgalloc.h>
 #include <asm/setup.h>
 #include <asm/espfix.h>
+#include <asm/bug.h>
 
 /*
  * Note: we only need 6*8 = 48 bytes for the espfix stack, but round
@@ -70,8 +71,10 @@ static DEFINE_MUTEX(espfix_init_mutex);
 #define ESPFIX_MAX_PAGES  DIV_ROUND_UP(CONFIG_NR_CPUS, ESPFIX_STACKS_PER_PAGE)
 static void *espfix_pages[ESPFIX_MAX_PAGES];
 
-static __page_aligned_bss pud_t espfix_pud_page[PTRS_PER_PUD]
-	__aligned(PAGE_SIZE);
+static __page_aligned_rodata pud_t espfix_pud_page[PTRS_PER_PUD];
+static __page_aligned_rodata pmd_t espfix_pmd_page[PTRS_PER_PMD];
+static __page_aligned_rodata pte_t espfix_pte_page[PTRS_PER_PTE];
+static __page_aligned_rodata char espfix_stack_page[ESPFIX_MAX_PAGES][PAGE_SIZE];
 
 static unsigned int page_random, slot_random;
 
@@ -122,10 +125,19 @@ static void init_espfix_random(void)
 void __init init_espfix_bsp(void)
 {
 	pgd_t *pgd_p;
+	pud_t *pud_p;
+	unsigned long index = pgd_index(ESPFIX_BASE_ADDR);
 
 	/* Install the espfix pud into the kernel page directory */
-	pgd_p = &init_level4_pgt[pgd_index(ESPFIX_BASE_ADDR)];
-	pgd_populate(&init_mm, pgd_p, (pud_t *)espfix_pud_page);
+	pgd_p = &init_level4_pgt[index];
+	pud_p = espfix_pud_page;
+	paravirt_alloc_pud(&init_mm, __pa(pud_p) >> PAGE_SHIFT);
+	set_pgd(pgd_p, __pgd(PGTABLE_PROT | __pa(pud_p)));
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+	clone_pgd_range(get_cpu_pgd(0, kernel) + index, swapper_pg_dir + index, 1);
+	clone_pgd_range(get_cpu_pgd(0, user) + index, swapper_pg_dir + index, 1);
+#endif
 
 	/* Randomize the locations */
 	init_espfix_random();
@@ -170,35 +182,39 @@ void init_espfix_ap(int cpu)
 	pud_p = &espfix_pud_page[pud_index(addr)];
 	pud = *pud_p;
 	if (!pud_present(pud)) {
-		struct page *page = alloc_pages_node(node, PGALLOC_GFP, 0);
-
-		pmd_p = (pmd_t *)page_address(page);
+		if (cpu)
+			pmd_p = page_address(alloc_pages_node(node, PGALLOC_GFP, 0));
+		else
+			pmd_p = espfix_pmd_page;
 		pud = __pud(__pa(pmd_p) | (PGTABLE_PROT & ptemask));
 		paravirt_alloc_pmd(&init_mm, __pa(pmd_p) >> PAGE_SHIFT);
 		for (n = 0; n < ESPFIX_PUD_CLONES; n++)
 			set_pud(&pud_p[n], pud);
-	}
+	} else
+		BUG_ON(!cpu);
 
 	pmd_p = pmd_offset(&pud, addr);
 	pmd = *pmd_p;
 	if (!pmd_present(pmd)) {
-		struct page *page = alloc_pages_node(node, PGALLOC_GFP, 0);
-
-		pte_p = (pte_t *)page_address(page);
+		if (cpu)
+			pte_p = page_address(alloc_pages_node(node, PGALLOC_GFP, 0));
+		else
+			pte_p = espfix_pte_page;
 		pmd = __pmd(__pa(pte_p) | (PGTABLE_PROT & ptemask));
 		paravirt_alloc_pte(&init_mm, __pa(pte_p) >> PAGE_SHIFT);
 		for (n = 0; n < ESPFIX_PMD_CLONES; n++)
 			set_pmd(&pmd_p[n], pmd);
-	}
+	} else
+		BUG_ON(!cpu);
 
 	pte_p = pte_offset_kernel(&pmd, addr);
-	stack_page = page_address(alloc_pages_node(node, GFP_KERNEL, 0));
+	stack_page = espfix_stack_page[page];
 	pte = __pte(__pa(stack_page) | (__PAGE_KERNEL_RO & ptemask));
 	for (n = 0; n < ESPFIX_PTE_CLONES; n++)
 		set_pte(&pte_p[n*PTE_STRIDE], pte);
 
 	/* Job is done for this CPU and any CPU which shares this page */
-	ACCESS_ONCE(espfix_pages[page]) = stack_page;
+	ACCESS_ONCE_RW(espfix_pages[page]) = stack_page;
 
 unlock_done:
 	mutex_unlock(&espfix_init_mutex);
diff --git a/arch/x86/kernel/fpu/core.c b/arch/x86/kernel/fpu/core.c
index 8e37cc8..0ce76b8 100644
--- a/arch/x86/kernel/fpu/core.c
+++ b/arch/x86/kernel/fpu/core.c
@@ -131,7 +131,7 @@ void __kernel_fpu_end(void)
 	struct fpu *fpu = &current->thread.fpu;
 
 	if (fpu->fpregs_active)
-		copy_kernel_to_fpregs(&fpu->state);
+		copy_kernel_to_fpregs(fpu->state);
 	else
 		__fpregs_deactivate_hw();
 
@@ -195,7 +195,7 @@ void fpu__save(struct fpu *fpu)
 	if (fpu->fpregs_active) {
 		if (!copy_fpregs_to_fpstate(fpu)) {
 			if (use_eager_fpu())
-				copy_kernel_to_fpregs(&fpu->state);
+				copy_kernel_to_fpregs(fpu->state);
 			else
 				fpregs_deactivate(fpu);
 		}
@@ -247,7 +247,7 @@ int fpu__copy(struct fpu *dst_fpu, struct fpu *src_fpu)
 	 * leak into the child task:
 	 */
 	if (use_eager_fpu())
-		memset(&dst_fpu->state.xsave, 0, xstate_size);
+		memset(&dst_fpu->state->xsave, 0, xstate_size);
 
 	/*
 	 * Save current FPU registers directly into the child
@@ -266,10 +266,10 @@ int fpu__copy(struct fpu *dst_fpu, struct fpu *src_fpu)
 	 */
 	preempt_disable();
 	if (!copy_fpregs_to_fpstate(dst_fpu)) {
-		memcpy(&src_fpu->state, &dst_fpu->state, xstate_size);
+		memcpy(src_fpu->state, dst_fpu->state, xstate_size);
 
 		if (use_eager_fpu())
-			copy_kernel_to_fpregs(&src_fpu->state);
+			copy_kernel_to_fpregs(src_fpu->state);
 		else
 			fpregs_deactivate(src_fpu);
 	}
@@ -287,7 +287,7 @@ void fpu__activate_curr(struct fpu *fpu)
 	WARN_ON_FPU(fpu != &current->thread.fpu);
 
 	if (!fpu->fpstate_active) {
-		fpstate_init(&fpu->state);
+		fpstate_init(fpu->state);
 
 		/* Safe to do for the current task: */
 		fpu->fpstate_active = 1;
@@ -313,7 +313,7 @@ void fpu__activate_fpstate_read(struct fpu *fpu)
 		fpu__save(fpu);
 	} else {
 		if (!fpu->fpstate_active) {
-			fpstate_init(&fpu->state);
+			fpstate_init(fpu->state);
 
 			/* Safe to do for current and for stopped child tasks: */
 			fpu->fpstate_active = 1;
@@ -346,7 +346,7 @@ void fpu__activate_fpstate_write(struct fpu *fpu)
 		/* Invalidate any lazy state: */
 		fpu->last_cpu = -1;
 	} else {
-		fpstate_init(&fpu->state);
+		fpstate_init(fpu->state);
 
 		/* Safe to do for stopped child tasks: */
 		fpu->fpstate_active = 1;
@@ -407,7 +407,7 @@ void fpu__current_fpstate_write_end(void)
 	 * an XRSTOR if they are active.
 	 */
 	if (fpregs_active())
-		copy_kernel_to_fpregs(&fpu->state);
+		copy_kernel_to_fpregs(fpu->state);
 
 	/*
 	 * Our update is done and the fpregs/fpstate are in sync
@@ -433,7 +433,7 @@ void fpu__restore(struct fpu *fpu)
 	/* Avoid __kernel_fpu_begin() right after fpregs_activate() */
 	kernel_fpu_disable();
 	fpregs_activate(fpu);
-	copy_kernel_to_fpregs(&fpu->state);
+	copy_kernel_to_fpregs(fpu->state);
 	fpu->counter++;
 	kernel_fpu_enable();
 }
@@ -509,25 +509,25 @@ void fpu__clear(struct fpu *fpu)
 static inline unsigned short get_fpu_cwd(struct fpu *fpu)
 {
 	if (cpu_has_fxsr) {
-		return fpu->state.fxsave.cwd;
+		return fpu->state->fxsave.cwd;
 	} else {
-		return (unsigned short)fpu->state.fsave.cwd;
+		return (unsigned short)fpu->state->fsave.cwd;
 	}
 }
 
 static inline unsigned short get_fpu_swd(struct fpu *fpu)
 {
 	if (cpu_has_fxsr) {
-		return fpu->state.fxsave.swd;
+		return fpu->state->fxsave.swd;
 	} else {
-		return (unsigned short)fpu->state.fsave.swd;
+		return (unsigned short)fpu->state->fsave.swd;
 	}
 }
 
 static inline unsigned short get_fpu_mxcsr(struct fpu *fpu)
 {
 	if (cpu_has_xmm) {
-		return fpu->state.fxsave.mxcsr;
+		return fpu->state->fxsave.mxcsr;
 	} else {
 		return MXCSR_DEFAULT;
 	}
diff --git a/arch/x86/kernel/fpu/init.c b/arch/x86/kernel/fpu/init.c
index 54c86ff..703757b 100644
--- a/arch/x86/kernel/fpu/init.c
+++ b/arch/x86/kernel/fpu/init.c
@@ -45,7 +45,7 @@ static void fpu__init_cpu_generic(void)
 	/* Flush out any pending x87 state: */
 #ifdef CONFIG_MATH_EMULATION
 	if (!cpu_has_fpu)
-		fpstate_init_soft(&current->thread.fpu.state.soft);
+		fpstate_init_soft(&current->thread.fpu.state->soft);
 	else
 #endif
 		asm volatile ("fninit");
@@ -148,51 +148,7 @@ static void __init fpu__init_system_generic(void)
 unsigned int xstate_size;
 EXPORT_SYMBOL_GPL(xstate_size);
 
-/* Get alignment of the TYPE. */
-#define TYPE_ALIGN(TYPE) offsetof(struct { char x; TYPE test; }, test)
-
-/*
- * Enforce that 'MEMBER' is the last field of 'TYPE'.
- *
- * Align the computed size with alignment of the TYPE,
- * because that's how C aligns structs.
- */
-#define CHECK_MEMBER_AT_END_OF(TYPE, MEMBER) \
-	BUILD_BUG_ON(sizeof(TYPE) != ALIGN(offsetofend(TYPE, MEMBER), \
-					   TYPE_ALIGN(TYPE)))
-
-/*
- * We append the 'struct fpu' to the task_struct:
- */
-static void __init fpu__init_task_struct_size(void)
-{
-	int task_size = sizeof(struct task_struct);
-
-	/*
-	 * Subtract off the static size of the register state.
-	 * It potentially has a bunch of padding.
-	 */
-	task_size -= sizeof(((struct task_struct *)0)->thread.fpu.state);
-
-	/*
-	 * Add back the dynamically-calculated register state
-	 * size.
-	 */
-	task_size += xstate_size;
-
-	/*
-	 * We dynamically size 'struct fpu', so we require that
-	 * it be at the end of 'thread_struct' and that
-	 * 'thread_struct' be at the end of 'task_struct'.  If
-	 * you hit a compile error here, check the structure to
-	 * see if something got added to the end.
-	 */
-	CHECK_MEMBER_AT_END_OF(struct fpu, state);
-	CHECK_MEMBER_AT_END_OF(struct thread_struct, fpu);
-	CHECK_MEMBER_AT_END_OF(struct task_struct, thread);
-
-	arch_task_struct_size = task_size;
-}
+union fpregs_state init_fpregs_state;
 
 /*
  * Set up the xstate_size based on the legacy FPU context size.
@@ -397,7 +353,6 @@ void __init fpu__init_system(struct cpuinfo_x86 *c)
 	fpu__init_system_generic();
 	fpu__init_system_xstate_size_legacy();
 	fpu__init_system_xstate();
-	fpu__init_task_struct_size();
 
 	fpu__init_system_ctx_switch();
 }
diff --git a/arch/x86/kernel/fpu/regset.c b/arch/x86/kernel/fpu/regset.c
index 8bd1c00..765a913 100644
--- a/arch/x86/kernel/fpu/regset.c
+++ b/arch/x86/kernel/fpu/regset.c
@@ -37,7 +37,7 @@ int xfpregs_get(struct task_struct *target, const struct user_regset *regset,
 	fpstate_sanitize_xstate(fpu);
 
 	return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
-				   &fpu->state.fxsave, 0, -1);
+				   &fpu->state->fxsave, 0, -1);
 }
 
 int xfpregs_set(struct task_struct *target, const struct user_regset *regset,
@@ -54,19 +54,19 @@ int xfpregs_set(struct task_struct *target, const struct user_regset *regset,
 	fpstate_sanitize_xstate(fpu);
 
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
-				 &fpu->state.fxsave, 0, -1);
+				 &fpu->state->fxsave, 0, -1);
 
 	/*
 	 * mxcsr reserved bits must be masked to zero for security reasons.
 	 */
-	fpu->state.fxsave.mxcsr &= mxcsr_feature_mask;
+	fpu->state->fxsave.mxcsr &= mxcsr_feature_mask;
 
 	/*
 	 * update the header bits in the xsave header, indicating the
 	 * presence of FP and SSE state.
 	 */
 	if (cpu_has_xsave)
-		fpu->state.xsave.header.xfeatures |= XFEATURE_MASK_FPSSE;
+		fpu->state->xsave.header.xfeatures |= XFEATURE_MASK_FPSSE;
 
 	return ret;
 }
@@ -84,7 +84,7 @@ int xstateregs_get(struct task_struct *target, const struct user_regset *regset,
 
 	fpu__activate_fpstate_read(fpu);
 
-	xsave = &fpu->state.xsave;
+	xsave = &fpu->state->xsave;
 
 	/*
 	 * Copy the 48bytes defined by the software first into the xstate
@@ -113,7 +113,7 @@ int xstateregs_set(struct task_struct *target, const struct user_regset *regset,
 
 	fpu__activate_fpstate_write(fpu);
 
-	xsave = &fpu->state.xsave;
+	xsave = &fpu->state->xsave;
 
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, xsave, 0, -1);
 	/*
@@ -204,7 +204,7 @@ static inline u32 twd_fxsr_to_i387(struct fxregs_state *fxsave)
 void
 convert_from_fxsr(struct user_i387_ia32_struct *env, struct task_struct *tsk)
 {
-	struct fxregs_state *fxsave = &tsk->thread.fpu.state.fxsave;
+	struct fxregs_state *fxsave = &tsk->thread.fpu.state->fxsave;
 	struct _fpreg *to = (struct _fpreg *) &env->st_space[0];
 	struct _fpxreg *from = (struct _fpxreg *) &fxsave->st_space[0];
 	int i;
@@ -242,7 +242,7 @@ void convert_to_fxsr(struct task_struct *tsk,
 		     const struct user_i387_ia32_struct *env)
 
 {
-	struct fxregs_state *fxsave = &tsk->thread.fpu.state.fxsave;
+	struct fxregs_state *fxsave = &tsk->thread.fpu.state->fxsave;
 	struct _fpreg *from = (struct _fpreg *) &env->st_space[0];
 	struct _fpxreg *to = (struct _fpxreg *) &fxsave->st_space[0];
 	int i;
@@ -280,7 +280,7 @@ int fpregs_get(struct task_struct *target, const struct user_regset *regset,
 
 	if (!cpu_has_fxsr)
 		return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
-					   &fpu->state.fsave, 0,
+					   &fpu->state->fsave, 0,
 					   -1);
 
 	fpstate_sanitize_xstate(fpu);
@@ -311,7 +311,7 @@ int fpregs_set(struct task_struct *target, const struct user_regset *regset,
 
 	if (!cpu_has_fxsr)
 		return user_regset_copyin(&pos, &count, &kbuf, &ubuf,
-					  &fpu->state.fsave, 0,
+					  &fpu->state->fsave, 0,
 					  -1);
 
 	if (pos > 0 || count < sizeof(env))
@@ -326,7 +326,7 @@ int fpregs_set(struct task_struct *target, const struct user_regset *regset,
 	 * presence of FP.
 	 */
 	if (cpu_has_xsave)
-		fpu->state.xsave.header.xfeatures |= XFEATURE_MASK_FP;
+		fpu->state->xsave.header.xfeatures |= XFEATURE_MASK_FP;
 	return ret;
 }
 
diff --git a/arch/x86/kernel/fpu/signal.c b/arch/x86/kernel/fpu/signal.c
index 31c6a60..523f27e 100644
--- a/arch/x86/kernel/fpu/signal.c
+++ b/arch/x86/kernel/fpu/signal.c
@@ -54,7 +54,7 @@ static inline int check_for_xstate(struct fxregs_state __user *buf,
 static inline int save_fsave_header(struct task_struct *tsk, void __user *buf)
 {
 	if (use_fxsr()) {
-		struct xregs_state *xsave = &tsk->thread.fpu.state.xsave;
+		struct xregs_state *xsave = &tsk->thread.fpu.state->xsave;
 		struct user_i387_ia32_struct env;
 		struct _fpstate_32 __user *fp = buf;
 
@@ -83,18 +83,18 @@ static inline int save_xstate_epilog(void __user *buf, int ia32_frame)
 
 	/* Setup the bytes not touched by the [f]xsave and reserved for SW. */
 	sw_bytes = ia32_frame ? &fx_sw_reserved_ia32 : &fx_sw_reserved;
-	err = __copy_to_user(&x->i387.sw_reserved, sw_bytes, sizeof(*sw_bytes));
+	err = __copy_to_user(x->i387.sw_reserved, sw_bytes, sizeof(*sw_bytes));
 
 	if (!use_xsave())
 		return err;
 
-	err |= __put_user(FP_XSTATE_MAGIC2, (__u32 *)(buf + xstate_size));
+	err |= __put_user(FP_XSTATE_MAGIC2, (__u32 __user *)(buf + xstate_size));
 
 	/*
 	 * Read the xfeatures which we copied (directly from the cpu or
 	 * from the state in task struct) to the user buffers.
 	 */
-	err |= __get_user(xfeatures, (__u32 *)&x->header.xfeatures);
+	err |= __get_user(xfeatures, (__u32 __user *)&x->header.xfeatures);
 
 	/*
 	 * For legacy compatible, we always set FP/SSE bits in the bit
@@ -109,7 +109,7 @@ static inline int save_xstate_epilog(void __user *buf, int ia32_frame)
 	 */
 	xfeatures |= XFEATURE_MASK_FPSSE;
 
-	err |= __put_user(xfeatures, (__u32 *)&x->header.xfeatures);
+	err |= __put_user(xfeatures, (__u32 __user *)&x->header.xfeatures);
 
 	return err;
 }
@@ -118,6 +118,7 @@ static inline int copy_fpregs_to_sigframe(struct xregs_state __user *buf)
 {
 	int err;
 
+	buf = (struct xregs_state __user *)____m(buf);
 	if (use_xsave())
 		err = copy_xregs_to_user(buf);
 	else if (use_fxsr())
@@ -152,7 +153,7 @@ static inline int copy_fpregs_to_sigframe(struct xregs_state __user *buf)
  */
 int copy_fpstate_to_sigframe(void __user *buf, void __user *buf_fx, int size)
 {
-	struct xregs_state *xsave = &current->thread.fpu.state.xsave;
+	struct xregs_state *xsave = &current->thread.fpu.state->xsave;
 	struct task_struct *tsk = current;
 	int ia32_fxstate = (buf != buf_fx);
 
@@ -195,7 +196,7 @@ sanitize_restored_xstate(struct task_struct *tsk,
 			 struct user_i387_ia32_struct *ia32_env,
 			 u64 xfeatures, int fx_only)
 {
-	struct xregs_state *xsave = &tsk->thread.fpu.state.xsave;
+	struct xregs_state *xsave = &tsk->thread.fpu.state->xsave;
 	struct xstate_header *header = &xsave->header;
 
 	if (use_xsave()) {
@@ -228,6 +229,7 @@ sanitize_restored_xstate(struct task_struct *tsk,
  */
 static inline int copy_user_to_fpregs_zeroing(void __user *buf, u64 xbv, int fx_only)
 {
+	buf = (void __user *)____m(buf);
 	if (use_xsave()) {
 		if ((unsigned long)buf % 64 || fx_only) {
 			u64 init_bv = xfeatures_mask & ~XFEATURE_MASK_FPSSE;
@@ -308,9 +310,9 @@ static int __fpu__restore_sig(void __user *buf, void __user *buf_fx, int size)
 		 */
 		fpu__drop(fpu);
 
-		if (__copy_from_user(&fpu->state.xsave, buf_fx, state_size) ||
+		if (__copy_from_user(&fpu->state->xsave, buf_fx, state_size) ||
 		    __copy_from_user(&env, buf, sizeof(env))) {
-			fpstate_init(&fpu->state);
+			fpstate_init(fpu->state);
 			err = -1;
 		} else {
 			sanitize_restored_xstate(tsk, &env, xfeatures, fx_only);
diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c
index b48ef35..10f3b79 100644
--- a/arch/x86/kernel/fpu/xstate.c
+++ b/arch/x86/kernel/fpu/xstate.c
@@ -122,14 +122,14 @@ EXPORT_SYMBOL_GPL(cpu_has_xfeatures);
  */
 void fpstate_sanitize_xstate(struct fpu *fpu)
 {
-	struct fxregs_state *fx = &fpu->state.fxsave;
+	struct fxregs_state *fx = &fpu->state->fxsave;
 	int feature_bit;
 	u64 xfeatures;
 
 	if (!use_xsaveopt())
 		return;
 
-	xfeatures = fpu->state.xsave.header.xfeatures;
+	xfeatures = fpu->state->xsave.header.xfeatures;
 
 	/*
 	 * None of the feature bits are in init state. So nothing else
@@ -775,7 +775,7 @@ const void *get_xsave_field_ptr(int xsave_state)
 	 */
 	fpu__save(fpu);
 
-	return get_xsave_addr(&fpu->state.xsave, xsave_state);
+	return get_xsave_addr(&fpu->state->xsave, xsave_state);
 }
 
 
@@ -808,7 +808,7 @@ static void fpu__xfeature_set_non_init(struct xregs_state *xsave,
 static void fpu__xfeature_set_state(int xstate_feature_mask,
 		void *xstate_feature_src, size_t len)
 {
-	struct xregs_state *xsave = &current->thread.fpu.state.xsave;
+	struct xregs_state *xsave = &current->thread.fpu.state->xsave;
 	struct fpu *fpu = &current->thread.fpu;
 	void *dst;
 
@@ -836,7 +836,7 @@ static void fpu__xfeature_set_state(int xstate_feature_mask,
 	}
 
 	/* find the location in the xsave buffer of the desired state */
-	dst = __raw_xsave_addr(&fpu->state.xsave, xstate_feature_mask);
+	dst = __raw_xsave_addr(&fpu->state->xsave, xstate_feature_mask);
 
 	/*
 	 * Make sure that the pointer being passed in did not
@@ -874,7 +874,7 @@ out:
 int arch_set_user_pkey_access(struct task_struct *tsk, int pkey,
 		unsigned long init_val)
 {
-	struct xregs_state *xsave = &tsk->thread.fpu.state.xsave;
+	struct xregs_state *xsave = &tsk->thread.fpu.state->xsave;
 	struct pkru_state *old_pkru_state;
 	struct pkru_state new_pkru_state;
 	int pkey_shift = (pkey * PKRU_BITS_PER_PKEY);
diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
index d036cfb..cb4c991 100644
--- a/arch/x86/kernel/ftrace.c
+++ b/arch/x86/kernel/ftrace.c
@@ -89,7 +89,7 @@ static unsigned long text_ip_addr(unsigned long ip)
 	 * kernel identity mapping to modify code.
 	 */
 	if (within(ip, (unsigned long)_text, (unsigned long)_etext))
-		ip = (unsigned long)__va(__pa_symbol(ip));
+		ip = (unsigned long)__va(__pa_symbol(ktla_ktva(ip)));
 
 	return ip;
 }
@@ -105,6 +105,8 @@ ftrace_modify_code_direct(unsigned long ip, unsigned const char *old_code,
 {
 	unsigned char replaced[MCOUNT_INSN_SIZE];
 
+	ip = ktla_ktva(ip);
+
 	ftrace_expected = old_code;
 
 	/*
@@ -233,7 +235,7 @@ static int update_ftrace_func(unsigned long ip, void *new)
 	unsigned char old[MCOUNT_INSN_SIZE];
 	int ret;
 
-	memcpy(old, (void *)ip, MCOUNT_INSN_SIZE);
+	memcpy(old, (void *)ktla_ktva(ip), MCOUNT_INSN_SIZE);
 
 	ftrace_update_func = ip;
 	/* Make sure the breakpoints see the ftrace_update_func update */
@@ -314,7 +316,7 @@ static int add_break(unsigned long ip, const char *old)
 	unsigned char replaced[MCOUNT_INSN_SIZE];
 	unsigned char brk = BREAKPOINT_INSTRUCTION;
 
-	if (probe_kernel_read(replaced, (void *)ip, MCOUNT_INSN_SIZE))
+	if (probe_kernel_read(replaced, (void *)ktla_ktva(ip), MCOUNT_INSN_SIZE))
 		return -EFAULT;
 
 	ftrace_expected = old;
@@ -681,11 +683,11 @@ static unsigned char *ftrace_jmp_replace(unsigned long ip, unsigned long addr)
 /* Module allocation simplifies allocating memory for code */
 static inline void *alloc_tramp(unsigned long size)
 {
-	return module_alloc(size);
+	return module_alloc_exec(size);
 }
 static inline void tramp_free(void *tramp)
 {
-	module_memfree(tramp);
+	module_memfree_exec(tramp);
 }
 #else
 /* Trampolines can only be created if modules are supported */
@@ -763,7 +765,9 @@ create_trampoline(struct ftrace_ops *ops, unsigned int *tramp_size)
 	*tramp_size = size + MCOUNT_INSN_SIZE + sizeof(void *);
 
 	/* Copy ftrace_caller onto the trampoline memory */
+	pax_open_kernel();
 	ret = probe_kernel_read(trampoline, (void *)start_offset, size);
+	pax_close_kernel();
 	if (WARN_ON(ret < 0)) {
 		tramp_free(trampoline);
 		return 0;
@@ -773,6 +777,7 @@ create_trampoline(struct ftrace_ops *ops, unsigned int *tramp_size)
 
 	/* The trampoline ends with a jmp to ftrace_epilogue */
 	jmp = ftrace_jmp_replace(ip, (unsigned long)ftrace_epilogue);
+	pax_open_kernel();
 	memcpy(trampoline + size, jmp, MCOUNT_INSN_SIZE);
 
 	/*
@@ -785,6 +790,7 @@ create_trampoline(struct ftrace_ops *ops, unsigned int *tramp_size)
 
 	ptr = (unsigned long *)(trampoline + size + MCOUNT_INSN_SIZE);
 	*ptr = (unsigned long)ops;
+	pax_close_kernel();
 
 	op_offset -= start_offset;
 	memcpy(&op_ptr, trampoline + op_offset, OP_REF_SIZE);
@@ -802,7 +808,9 @@ create_trampoline(struct ftrace_ops *ops, unsigned int *tramp_size)
 	op_ptr.offset = offset;
 
 	/* put in the new offset to the ftrace_ops */
+	pax_open_kernel();
 	memcpy(trampoline + op_offset, &op_ptr, OP_REF_SIZE);
+	pax_close_kernel();
 
 	/* ALLOC_TRAMP flags lets us know we created it */
 	ops->flags |= FTRACE_OPS_FL_ALLOC_TRAMP;
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index 1f4422d..995e17d 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -62,12 +62,12 @@ again:
 	pgd = *pgd_p;
 
 	/*
-	 * The use of __START_KERNEL_map rather than __PAGE_OFFSET here is
-	 * critical -- __PAGE_OFFSET would point us back into the dynamic
+	 * The use of __early_va rather than __va here is critical:
+	 * __va would point us back into the dynamic
 	 * range and we might end up looping forever...
 	 */
 	if (pgd)
-		pud_p = (pudval_t *)((pgd & PTE_PFN_MASK) + __START_KERNEL_map - phys_base);
+		pud_p = (pudval_t *)(__early_va(pgd & PTE_PFN_MASK));
 	else {
 		if (next_early_pgt >= EARLY_DYNAMIC_PAGE_TABLES) {
 			reset_early_page_tables();
@@ -76,13 +76,13 @@ again:
 
 		pud_p = (pudval_t *)early_dynamic_pgts[next_early_pgt++];
 		memset(pud_p, 0, sizeof(*pud_p) * PTRS_PER_PUD);
-		*pgd_p = (pgdval_t)pud_p - __START_KERNEL_map + phys_base + _KERNPG_TABLE;
+		*pgd_p = (pgdval_t)__pa(pud_p) + _KERNPG_TABLE;
 	}
 	pud_p += pud_index(address);
 	pud = *pud_p;
 
 	if (pud)
-		pmd_p = (pmdval_t *)((pud & PTE_PFN_MASK) + __START_KERNEL_map - phys_base);
+		pmd_p = (pmdval_t *)(__early_va(pud & PTE_PFN_MASK));
 	else {
 		if (next_early_pgt >= EARLY_DYNAMIC_PAGE_TABLES) {
 			reset_early_page_tables();
@@ -91,7 +91,7 @@ again:
 
 		pmd_p = (pmdval_t *)early_dynamic_pgts[next_early_pgt++];
 		memset(pmd_p, 0, sizeof(*pmd_p) * PTRS_PER_PMD);
-		*pud_p = (pudval_t)pmd_p - __START_KERNEL_map + phys_base + _KERNPG_TABLE;
+		*pud_p = (pudval_t)__pa(pmd_p) + _KERNPG_TABLE;
 	}
 	pmd = (physaddr & PMD_MASK) + early_pmd_flags;
 	pmd_p[pmd_index(address)] = pmd;
@@ -155,8 +155,6 @@ asmlinkage __visible void __init x86_64_start_kernel(char * real_mode_data)
 
 	clear_bss();
 
-	clear_page(init_level4_pgt);
-
 	kasan_early_init();
 
 	for (i = 0; i < NUM_EXCEPTION_VECTORS; i++)
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index af11129..e506d32 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -27,6 +27,12 @@
 /* Physical address */
 #define pa(X) ((X) - __PAGE_OFFSET)
 
+#ifdef CONFIG_PAX_KERNEXEC
+#define ta(X) (X)
+#else
+#define ta(X) ((X) - __PAGE_OFFSET)
+#endif
+
 /*
  * References to members of the new_cpu_data structure.
  */
@@ -56,11 +62,7 @@
  * and small than max_low_pfn, otherwise will waste some page table entries
  */
 
-#if PTRS_PER_PMD > 1
-#define PAGE_TABLE_SIZE(pages) (((pages) / PTRS_PER_PMD) + PTRS_PER_PGD)
-#else
-#define PAGE_TABLE_SIZE(pages) ((pages) / PTRS_PER_PGD)
-#endif
+#define PAGE_TABLE_SIZE(pages) ((pages) / PTRS_PER_PTE)
 
 /*
  * Number of possible pages in the lowmem region.
@@ -86,6 +88,12 @@ INIT_MAP_SIZE = PAGE_TABLE_SIZE(KERNEL_PAGES) * PAGE_SIZE
 RESERVE_BRK(pagetables, INIT_MAP_SIZE)
 
 /*
+ * Real beginning of normal "text" segment
+ */
+ENTRY(stext)
+ENTRY(_stext)
+
+/*
  * 32-bit kernel entrypoint; only used by the boot CPU.  On entry,
  * %esi points to the real-mode code as a 32-bit pointer.
  * CS and DS must be 4 GB flat segments, but we don't depend on
@@ -93,6 +101,13 @@ RESERVE_BRK(pagetables, INIT_MAP_SIZE)
  * can.
  */
 __HEAD
+
+#ifdef CONFIG_PAX_KERNEXEC
+	jmp startup_32
+/* PaX: fill first page in .text with int3 to catch NULL derefs in kernel mode */
+.fill PAGE_SIZE-5,1,0xcc
+#endif
+
 ENTRY(startup_32)
 	movl pa(stack_start),%ecx
 	
@@ -114,6 +129,66 @@ ENTRY(startup_32)
 2:
 	leal -__PAGE_OFFSET(%ecx),%esp
 
+#ifdef CONFIG_SMP
+	movl $pa(cpu_gdt_table),%edi
+	movl $__per_cpu_load,%eax
+	movw %ax,GDT_ENTRY_PERCPU * 8 + 2(%edi)
+	rorl $16,%eax
+	movb %al,GDT_ENTRY_PERCPU * 8 + 4(%edi)
+	movb %ah,GDT_ENTRY_PERCPU * 8 + 7(%edi)
+	movl $__per_cpu_end - 1,%eax
+	subl $__per_cpu_start,%eax
+	cmpl $0x100000,%eax
+	jb 1f
+	shrl $PAGE_SHIFT,%eax
+	orb $0x80,GDT_ENTRY_PERCPU * 8 + 6(%edi)
+1:
+	movw %ax,GDT_ENTRY_PERCPU * 8 + 0(%edi)
+	shrl $16,%eax
+	orb %al,GDT_ENTRY_PERCPU * 8 + 6(%edi)
+#endif
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	movl $NR_CPUS,%ecx
+	movl $pa(cpu_gdt_table),%edi
+1:
+	movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c09700),GDT_ENTRY_KERNEL_DS * 8 + 4(%edi)
+	movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c0fb00),GDT_ENTRY_DEFAULT_USER_CS * 8 + 4(%edi)
+	movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c0f300),GDT_ENTRY_DEFAULT_USER_DS * 8 + 4(%edi)
+	addl $PAGE_SIZE_asm,%edi
+	loop 1b
+#endif
+
+#ifdef CONFIG_PAX_KERNEXEC
+	movl $pa(boot_gdt),%edi
+	movl $__LOAD_PHYSICAL_ADDR,%eax
+	movw %ax,GDT_ENTRY_BOOT_CS * 8 + 2(%edi)
+	rorl $16,%eax
+	movb %al,GDT_ENTRY_BOOT_CS * 8 + 4(%edi)
+	movb %ah,GDT_ENTRY_BOOT_CS * 8 + 7(%edi)
+	rorl $16,%eax
+
+	ljmp $(__BOOT_CS),$1f
+1:
+
+	movl $NR_CPUS,%ecx
+	movl $pa(cpu_gdt_table),%edi
+	addl $__PAGE_OFFSET,%eax
+1:
+	movb $0xc0,GDT_ENTRY_KERNEL_CS * 8 + 6(%edi)
+	movb $0xc0,GDT_ENTRY_KERNEXEC_KERNEL_CS * 8 + 6(%edi)
+	movw %ax,GDT_ENTRY_KERNEL_CS * 8 + 2(%edi)
+	movw %ax,GDT_ENTRY_KERNEXEC_KERNEL_CS * 8 + 2(%edi)
+	rorl $16,%eax
+	movb %al,GDT_ENTRY_KERNEL_CS * 8 + 4(%edi)
+	movb %al,GDT_ENTRY_KERNEXEC_KERNEL_CS * 8 + 4(%edi)
+	movb %ah,GDT_ENTRY_KERNEL_CS * 8 + 7(%edi)
+	movb %ah,GDT_ENTRY_KERNEXEC_KERNEL_CS * 8 + 7(%edi)
+	rorl $16,%eax
+	addl $PAGE_SIZE_asm,%edi
+	loop 1b
+#endif
+
 /*
  * Clear BSS first so that there are no surprises...
  */
@@ -209,8 +284,11 @@ ENTRY(startup_32)
 	movl %eax, pa(max_pfn_mapped)
 
 	/* Do early initialization of the fixmap area */
-	movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,%eax
-	movl %eax,pa(initial_pg_pmd+0x1000*KPMDS-8)
+#ifdef CONFIG_COMPAT_VDSO
+	movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR+_PAGE_USER,pa(initial_pg_pmd+0x1000*KPMDS-8)
+#else
+	movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,pa(initial_pg_pmd+0x1000*KPMDS-8)
+#endif
 #else	/* Not PAE */
 
 page_pde_offset = (__PAGE_OFFSET >> 20);
@@ -240,8 +318,11 @@ page_pde_offset = (__PAGE_OFFSET >> 20);
 	movl %eax, pa(max_pfn_mapped)
 
 	/* Do early initialization of the fixmap area */
-	movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,%eax
-	movl %eax,pa(initial_page_table+0xffc)
+#ifdef CONFIG_COMPAT_VDSO
+	movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR+_PAGE_USER,pa(initial_page_table+0xffc)
+#else
+	movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,pa(initial_page_table+0xffc)
+#endif
 #endif
 
 #ifdef CONFIG_PARAVIRT
@@ -255,9 +336,7 @@ page_pde_offset = (__PAGE_OFFSET >> 20);
 	cmpl $num_subarch_entries, %eax
 	jae bad_subarch
 
-	movl pa(subarch_entries)(,%eax,4), %eax
-	subl $__PAGE_OFFSET, %eax
-	jmp *%eax
+	jmp *pa(subarch_entries)(,%eax,4)
 
 bad_subarch:
 WEAK(lguest_entry)
@@ -269,10 +348,10 @@ WEAK(xen_entry)
 	__INITDATA
 
 subarch_entries:
-	.long default_entry		/* normal x86/PC */
-	.long lguest_entry		/* lguest hypervisor */
-	.long xen_entry			/* Xen hypervisor */
-	.long default_entry		/* Moorestown MID */
+	.long ta(default_entry)		/* normal x86/PC */
+	.long ta(lguest_entry)		/* lguest hypervisor */
+	.long ta(xen_entry)		/* Xen hypervisor */
+	.long ta(default_entry)		/* Moorestown MID */
 num_subarch_entries = (. - subarch_entries) / 4
 .previous
 #else
@@ -361,6 +440,7 @@ default_entry:
 	movl pa(mmu_cr4_features),%eax
 	movl %eax,%cr4
 
+#ifdef CONFIG_X86_PAE
 	testb $X86_CR4_PAE, %al		# check if PAE is enabled
 	jz enable_paging
 
@@ -389,6 +469,9 @@ default_entry:
 	/* Make changes effective */
 	wrmsr
 
+	btsl $_PAGE_BIT_NX-32,pa(__supported_pte_mask+4)
+#endif
+
 enable_paging:
 
 /*
@@ -456,14 +539,20 @@ is486:
 1:	movl $(__KERNEL_DS),%eax	# reload all the segment registers
 	movl %eax,%ss			# after changing gdt.
 
-	movl $(__USER_DS),%eax		# DS/ES contains default USER segment
+#	movl $(__KERNEL_DS),%eax	# DS/ES contains default KERNEL segment
 	movl %eax,%ds
 	movl %eax,%es
 
 	movl $(__KERNEL_PERCPU), %eax
 	movl %eax,%fs			# set this cpu's percpu
 
+#ifdef CONFIG_CC_STACKPROTECTOR
 	movl $(__KERNEL_STACK_CANARY),%eax
+#elif defined(CONFIG_PAX_MEMORY_UDEREF)
+	movl $(__USER_DS),%eax
+#else
+	xorl %eax,%eax
+#endif
 	movl %eax,%gs
 
 	xorl %eax,%eax			# Clear LDT
@@ -520,8 +609,11 @@ setup_once:
 	 * relocation.  Manually set base address in stack canary
 	 * segment descriptor.
 	 */
-	movl $gdt_page,%eax
+	movl $cpu_gdt_table,%eax
 	movl $stack_canary,%ecx
+#ifdef CONFIG_SMP
+	addl $__per_cpu_load,%ecx
+#endif
 	movw %cx, 8 * GDT_ENTRY_STACK_CANARY + 2(%eax)
 	shrl $16, %ecx
 	movb %cl, 8 * GDT_ENTRY_STACK_CANARY + 4(%eax)
@@ -558,7 +650,7 @@ early_idt_handler_common:
 	cmpl $2,(%esp)		# X86_TRAP_NMI
 	je .Lis_nmi		# Ignore NMI
 
-	cmpl $2,%ss:early_recursion_flag
+	cmpl $1,%ss:early_recursion_flag
 	je hlt_loop
 	incl %ss:early_recursion_flag
 
@@ -596,8 +688,8 @@ early_idt_handler_common:
 	pushl (20+6*4)(%esp)	/* trapno */
 	pushl $fault_msg
 	call printk
-#endif
 	call dump_stack
+#endif
 hlt_loop:
 	hlt
 	jmp hlt_loop
@@ -617,8 +709,11 @@ ENDPROC(early_idt_handler_common)
 /* This is the default interrupt "handler" :-) */
 	ALIGN
 ignore_int:
-	cld
 #ifdef CONFIG_PRINTK
+	cmpl $2,%ss:early_recursion_flag
+	je hlt_loop
+	incl %ss:early_recursion_flag
+	cld
 	pushl %eax
 	pushl %ecx
 	pushl %edx
@@ -627,9 +722,6 @@ ignore_int:
 	movl $(__KERNEL_DS),%eax
 	movl %eax,%ds
 	movl %eax,%es
-	cmpl $2,early_recursion_flag
-	je hlt_loop
-	incl early_recursion_flag
 	pushl 16(%esp)
 	pushl 24(%esp)
 	pushl 32(%esp)
@@ -660,11 +752,8 @@ ENTRY(initial_code)
 ENTRY(setup_once_ref)
 	.long setup_once
 
-/*
- * BSS section
- */
-__PAGE_ALIGNED_BSS
-	.align PAGE_SIZE
+__READ_ONLY
+	.balign	PAGE_SIZE
 #ifdef CONFIG_X86_PAE
 initial_pg_pmd:
 	.fill 1024*KPMDS,4,0
@@ -677,15 +766,18 @@ initial_pg_fixmap:
 ENTRY(empty_zero_page)
 	.fill 4096,1,0
 ENTRY(swapper_pg_dir)
-	.fill 1024,4,0
+#ifdef CONFIG_X86_PAE
+	.fill PTRS_PER_PGD,8,0
+#else
+	.fill PTRS_PER_PGD,4,0
+#endif
 
 /*
  * This starts the data section.
  */
 #ifdef CONFIG_X86_PAE
-__PAGE_ALIGNED_DATA
-	/* Page-aligned for the benefit of paravirt? */
-	.align PAGE_SIZE
+__READ_ONLY
+	.balign	PAGE_SIZE
 ENTRY(initial_page_table)
 	.long	pa(initial_pg_pmd+PGD_IDENT_ATTR),0	/* low identity map */
 # if KPMDS == 3
@@ -703,13 +795,21 @@ ENTRY(initial_page_table)
 # else
 #  error "Kernel PMDs should be 1, 2 or 3"
 # endif
-	.align PAGE_SIZE		/* needs to be page-sized too */
+	.balign PAGE_SIZE		/* needs to be page-sized too */
+
+# ifdef CONFIG_PAX_PER_CPU_PGD
+ENTRY(cpu_pgd)
+	.rept 2*NR_CPUS
+	.fill	PTRS_PER_PGD,8,0
+	.endr
+# endif
+
 #endif
 
 .data
 .balign 4
 ENTRY(stack_start)
-	.long init_thread_union+THREAD_SIZE
+	.long init_thread_union+THREAD_SIZE-8
 
 __INITRODATA
 int_msg:
@@ -737,7 +837,7 @@ fault_msg:
  * segment size, and 32-bit linear address value:
  */
 
-	.data
+__READ_ONLY
 .globl boot_gdt_descr
 .globl idt_descr
 
@@ -746,7 +846,7 @@ fault_msg:
 	.word 0				# 32 bit align gdt_desc.address
 boot_gdt_descr:
 	.word __BOOT_DS+7
-	.long boot_gdt - __PAGE_OFFSET
+	.long pa(boot_gdt)
 
 	.word 0				# 32-bit align idt_desc.address
 idt_descr:
@@ -757,7 +857,7 @@ idt_descr:
 	.word 0				# 32 bit align gdt_desc.address
 ENTRY(early_gdt_descr)
 	.word GDT_ENTRIES*8-1
-	.long gdt_page			/* Overwritten for secondary CPUs */
+	.long cpu_gdt_table		/* Overwritten for secondary CPUs */
 
 /*
  * The boot_gdt must mirror the equivalent in setup.S and is
@@ -766,5 +866,65 @@ ENTRY(early_gdt_descr)
 	.align L1_CACHE_BYTES
 ENTRY(boot_gdt)
 	.fill GDT_ENTRY_BOOT_CS,8,0
-	.quad 0x00cf9a000000ffff	/* kernel 4GB code at 0x00000000 */
-	.quad 0x00cf92000000ffff	/* kernel 4GB data at 0x00000000 */
+	.quad 0x00cf9b000000ffff	/* kernel 4GB code at 0x00000000 */
+	.quad 0x00cf93000000ffff	/* kernel 4GB data at 0x00000000 */
+
+	.align PAGE_SIZE_asm
+ENTRY(cpu_gdt_table)
+	.rept NR_CPUS
+	.quad 0x0000000000000000	/* NULL descriptor */
+	.quad 0x0000000000000000	/* 0x0b reserved */
+	.quad 0x0000000000000000	/* 0x13 reserved */
+	.quad 0x0000000000000000	/* 0x1b reserved */
+
+#ifdef CONFIG_PAX_KERNEXEC
+	.quad 0x00cf9b000000ffff	/* 0x20 alternate kernel 4GB code at 0x00000000 */
+#else
+	.quad 0x0000000000000000	/* 0x20 unused */
+#endif
+
+	.quad 0x0000000000000000	/* 0x28 unused */
+	.quad 0x0000000000000000	/* 0x33 TLS entry 1 */
+	.quad 0x0000000000000000	/* 0x3b TLS entry 2 */
+	.quad 0x0000000000000000	/* 0x43 TLS entry 3 */
+	.quad 0x0000000000000000	/* 0x4b reserved */
+	.quad 0x0000000000000000	/* 0x53 reserved */
+	.quad 0x0000000000000000	/* 0x5b reserved */
+
+	.quad 0x00cf9b000000ffff	/* 0x60 kernel 4GB code at 0x00000000 */
+	.quad 0x00cf93000000ffff	/* 0x68 kernel 4GB data at 0x00000000 */
+	.quad 0x00cffb000000ffff	/* 0x73 user 4GB code at 0x00000000 */
+	.quad 0x00cff3000000ffff	/* 0x7b user 4GB data at 0x00000000 */
+
+	.quad 0x0000000000000000	/* 0x80 TSS descriptor */
+	.quad 0x0000000000000000	/* 0x88 LDT descriptor */
+
+	/*
+	 * Segments used for calling PnP BIOS have byte granularity.
+	 * The code segments and data segments have fixed 64k limits,
+	 * the transfer segment sizes are set at run time.
+	 */
+	.quad 0x00409b000000ffff	/* 0x90 32-bit code */
+	.quad 0x00009b000000ffff	/* 0x98 16-bit code */
+	.quad 0x000093000000ffff	/* 0xa0 16-bit data */
+	.quad 0x0000930000000000	/* 0xa8 16-bit data */
+	.quad 0x0000930000000000	/* 0xb0 16-bit data */
+
+	/*
+	 * The APM segments have byte granularity and their bases
+	 * are set at run time.  All have 64k limits.
+	 */
+	.quad 0x00409b000000ffff	/* 0xb8 APM CS    code */
+	.quad 0x00009b000000ffff	/* 0xc0 APM CS 16 code (16 bit) */
+	.quad 0x004093000000ffff	/* 0xc8 APM DS    data */
+
+	.quad 0x00c093000000ffff	/* 0xd0 - ESPFIX SS */
+	.quad 0x0040930000000000	/* 0xd8 - PERCPU */
+	.quad 0x0040910000000017	/* 0xe0 - STACK_CANARY */
+	.quad 0x0000000000000000	/* 0xe8 - PCIBIOS_CS */
+	.quad 0x0000000000000000	/* 0xf0 - PCIBIOS_DS */
+	.quad 0x0000000000000000	/* 0xf8 - GDT entry 31: double-fault TSS */
+
+	/* Be sure this is zeroed to avoid false validations in Xen */
+	.fill PAGE_SIZE_asm - GDT_SIZE,1,0
+	.endr
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index 22fbf9d..1137e22 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -20,6 +20,8 @@
 #include <asm/processor-flags.h>
 #include <asm/percpu.h>
 #include <asm/nops.h>
+#include <asm/cpufeatures.h>
+#include <asm/alternative-asm.h>
 
 #ifdef CONFIG_PARAVIRT
 #include <asm/asm-offsets.h>
@@ -40,6 +42,12 @@
 L4_PAGE_OFFSET = pgd_index(__PAGE_OFFSET)
 L4_START_KERNEL = pgd_index(__START_KERNEL_map)
 L3_START_KERNEL = pud_index(__START_KERNEL_map)
+L4_VMALLOC_START = pgd_index(VMALLOC_START)
+L3_VMALLOC_START = pud_index(VMALLOC_START)
+L4_VMALLOC_END = pgd_index(VMALLOC_END)
+L3_VMALLOC_END = pud_index(VMALLOC_END)
+L4_VMEMMAP_START = pgd_index(VMEMMAP_START)
+L3_VMEMMAP_START = pud_index(VMEMMAP_START)
 
 	.text
 	__HEAD
@@ -89,11 +97,36 @@ startup_64:
 	 * Fixup the physical addresses in the page table
 	 */
 	addq	%rbp, early_level4_pgt + (L4_START_KERNEL*8)(%rip)
+	addq	%rbp, init_level4_pgt + (L4_PAGE_OFFSET*8)(%rip)
+	addq	%rbp, init_level4_pgt + (L4_VMALLOC_START*8)(%rip)
+	addq	%rbp, init_level4_pgt + (L4_VMALLOC_START*8) + 8(%rip)
+	addq	%rbp, init_level4_pgt + (L4_VMALLOC_START*8) + 16(%rip)
+	addq	%rbp, init_level4_pgt + (L4_VMALLOC_START*8) + 24(%rip)
+	addq	%rbp, init_level4_pgt + (L4_VMALLOC_END*8)(%rip)
+	addq	%rbp, init_level4_pgt + (L4_VMEMMAP_START*8)(%rip)
+	addq	%rbp, init_level4_pgt + (L4_START_KERNEL*8)(%rip)
 
-	addq	%rbp, level3_kernel_pgt + (510*8)(%rip)
-	addq	%rbp, level3_kernel_pgt + (511*8)(%rip)
+	addq	%rbp, level3_ident_pgt + (0*8)(%rip)
+#ifndef CONFIG_XEN
+	addq	%rbp, level3_ident_pgt + (1*8)(%rip)
+#endif
 
+	addq	%rbp, level3_vmemmap_pgt + (L3_VMEMMAP_START*8)(%rip)
+
+	addq	%rbp, level3_kernel_pgt + (L3_START_KERNEL*8)(%rip)
+	addq	%rbp, level3_kernel_pgt + ((L3_START_KERNEL+1)*8)(%rip)
+
+	addq	%rbp, level2_ident_pgt + (0*8)(%rip)
+
+	addq	%rbp, level2_fixmap_pgt + (0*8)(%rip)
+	addq	%rbp, level2_fixmap_pgt + (1*8)(%rip)
+	addq	%rbp, level2_fixmap_pgt + (2*8)(%rip)
+	addq	%rbp, level2_fixmap_pgt + (3*8)(%rip)
+
+	addq	%rbp, level2_fixmap_pgt + (504*8)(%rip)
+	addq	%rbp, level2_fixmap_pgt + (505*8)(%rip)
 	addq	%rbp, level2_fixmap_pgt + (506*8)(%rip)
+	addq	%rbp, level2_fixmap_pgt + (507*8)(%rip)
 
 	/*
 	 * Set up the identity mapping for the switchover.  These
@@ -177,11 +210,12 @@ ENTRY(secondary_startup_64)
 	/* Sanitize CPU configuration */
 	call verify_cpu
 
+	orq	$-1, %rbp
 	movq	$(init_level4_pgt - __START_KERNEL_map), %rax
 1:
 
-	/* Enable PAE mode and PGE */
-	movl	$(X86_CR4_PAE | X86_CR4_PGE), %ecx
+	/* Enable PAE mode and PSE/PGE */
+	movl	$(X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE), %ecx
 	movq	%rcx, %cr4
 
 	/* Setup early boot stage 4 level pagetables. */
@@ -202,10 +236,24 @@ ENTRY(secondary_startup_64)
 	movl	$MSR_EFER, %ecx
 	rdmsr
 	btsl	$_EFER_SCE, %eax	/* Enable System Call */
-	btl	$20,%edi		/* No Execute supported? */
+	btl	$(X86_FEATURE_NX & 31),%edi	/* No Execute supported? */
 	jnc     1f
 	btsl	$_EFER_NX, %eax
+	cmpq	$-1, %rbp
+	je	1f
 	btsq	$_PAGE_BIT_NX,early_pmd_flags(%rip)
+	btsq	$_PAGE_BIT_NX, init_level4_pgt + 8*L4_PAGE_OFFSET(%rip)
+	btsq	$_PAGE_BIT_NX, init_level4_pgt + (8*L4_VMALLOC_START)(%rip)
+	btsq	$_PAGE_BIT_NX, init_level4_pgt + (8*L4_VMALLOC_START) + 8(%rip)
+	btsq	$_PAGE_BIT_NX, init_level4_pgt + (8*L4_VMALLOC_START) + 16(%rip)
+	btsq	$_PAGE_BIT_NX, init_level4_pgt + (8*L4_VMALLOC_START) + 24(%rip)
+	btsq	$_PAGE_BIT_NX, init_level4_pgt + 8*L4_VMALLOC_END(%rip)
+	btsq	$_PAGE_BIT_NX, init_level4_pgt + 8*L4_VMEMMAP_START(%rip)
+	btsq	$_PAGE_BIT_NX, level2_fixmap_pgt + 8*504(%rip)
+	btsq	$_PAGE_BIT_NX, level2_fixmap_pgt + 8*505(%rip)
+	btsq	$_PAGE_BIT_NX, level2_fixmap_pgt + 8*506(%rip)
+	btsq	$_PAGE_BIT_NX, level2_fixmap_pgt + 8*507(%rip)
+	btsq	$_PAGE_BIT_NX, __supported_pte_mask(%rip)
 1:	wrmsr				/* Make changes effective */
 
 	/* Setup cr0 */
@@ -285,6 +333,7 @@ ENTRY(secondary_startup_64)
 	 *	REX.W + FF /5 JMP m16:64 Jump far, absolute indirect,
 	 *		address given in m16:64.
 	 */
+	pax_set_fptr_mask
 	movq	initial_code(%rip),%rax
 	pushq	$0		# fake return address to stop unwinder
 	pushq	$__KERNEL_CS	# set correct cs
@@ -318,7 +367,7 @@ ENDPROC(start_cpu0)
 	.quad	INIT_PER_CPU_VAR(irq_stack_union)
 
 	GLOBAL(stack_start)
-	.quad  init_thread_union+THREAD_SIZE-8
+	.quad  init_thread_union+THREAD_SIZE-16
 	.word  0
 	__FINITDATA
 
@@ -398,7 +447,7 @@ early_idt_handler_common:
 	call dump_stack
 #ifdef CONFIG_KALLSYMS	
 	leaq early_idt_ripmsg(%rip),%rdi
-	movq 40(%rsp),%rsi	# %rip again
+	movq 88(%rsp),%rsi	# %rip again
 	call __print_symbol
 #endif
 #endif /* EARLY_PRINTK */
@@ -427,6 +476,7 @@ ENDPROC(early_idt_handler_common)
 early_recursion_flag:
 	.long 0
 
+	__READ_ONLY
 #ifdef CONFIG_EARLY_PRINTK
 early_idt_msg:
 	.asciz "PANIC: early exception %02lx rip %lx:%lx error %lx cr2 %lx\n"
@@ -449,40 +499,70 @@ GLOBAL(name)
 	__INITDATA
 NEXT_PAGE(early_level4_pgt)
 	.fill	511,8,0
-	.quad	level3_kernel_pgt - __START_KERNEL_map + _PAGE_TABLE
+	.quad	level3_kernel_pgt - __START_KERNEL_map + _KERNPG_TABLE
 
 NEXT_PAGE(early_dynamic_pgts)
 	.fill	512*EARLY_DYNAMIC_PAGE_TABLES,8,0
 
-	.data
+	__READ_ONLY
 
-#ifndef CONFIG_XEN
 NEXT_PAGE(init_level4_pgt)
-	.fill	512,8,0
-#else
-NEXT_PAGE(init_level4_pgt)
-	.quad   level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
 	.org    init_level4_pgt + L4_PAGE_OFFSET*8, 0
 	.quad   level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
+	.org	init_level4_pgt + L4_VMALLOC_START*8, 0
+	.quad	level3_vmalloc_start_pgt - __START_KERNEL_map + PAGE_SIZE*0 + _KERNPG_TABLE
+	.quad	level3_vmalloc_start_pgt - __START_KERNEL_map + PAGE_SIZE*1 + _KERNPG_TABLE
+	.quad	level3_vmalloc_start_pgt - __START_KERNEL_map + PAGE_SIZE*2 + _KERNPG_TABLE
+	.quad	level3_vmalloc_start_pgt - __START_KERNEL_map + PAGE_SIZE*3 + _KERNPG_TABLE
+	.org	init_level4_pgt + L4_VMALLOC_END*8, 0
+	.quad	level3_vmalloc_end_pgt - __START_KERNEL_map + _KERNPG_TABLE
+	.org	init_level4_pgt + L4_VMEMMAP_START*8, 0
+	.quad	level3_vmemmap_pgt - __START_KERNEL_map + _KERNPG_TABLE
 	.org    init_level4_pgt + L4_START_KERNEL*8, 0
 	/* (2^48-(2*1024*1024*1024))/(2^39) = 511 */
-	.quad   level3_kernel_pgt - __START_KERNEL_map + _PAGE_TABLE
+	.quad   level3_kernel_pgt - __START_KERNEL_map + _KERNPG_TABLE
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+NEXT_PAGE(cpu_pgd)
+	.rept 2*NR_CPUS
+	.fill	512,8,0
+	.endr
+#endif
 
 NEXT_PAGE(level3_ident_pgt)
 	.quad	level2_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
+#ifdef CONFIG_XEN
 	.fill	511, 8, 0
+#else
+	.quad	level2_ident_pgt + PAGE_SIZE - __START_KERNEL_map + _KERNPG_TABLE
+	.fill	510,8,0
+#endif
+
+NEXT_PAGE(level3_vmalloc_start_pgt)
+	.fill	4*512,8,0
+
+NEXT_PAGE(level3_vmalloc_end_pgt)
+	.fill	512,8,0
+
+NEXT_PAGE(level3_vmemmap_pgt)
+	.fill	L3_VMEMMAP_START,8,0
+	.quad	level2_vmemmap_pgt - __START_KERNEL_map + _KERNPG_TABLE
+
 NEXT_PAGE(level2_ident_pgt)
-	/* Since I easily can, map the first 1G.
+	.quad	level1_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
+	/* Since I easily can, map the first 2G.
 	 * Don't set NX because code runs from these pages.
 	 */
-	PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, PTRS_PER_PMD)
-#endif
+	PMDS(PMD_SIZE, __PAGE_KERNEL_IDENT_LARGE_EXEC, 2*PTRS_PER_PMD - 1)
 
 NEXT_PAGE(level3_kernel_pgt)
 	.fill	L3_START_KERNEL,8,0
 	/* (2^48-(2*1024*1024*1024)-((2^39)*511))/(2^30) = 510 */
 	.quad	level2_kernel_pgt - __START_KERNEL_map + _KERNPG_TABLE
-	.quad	level2_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE
+	.quad	level2_fixmap_pgt - __START_KERNEL_map + _KERNPG_TABLE
+
+NEXT_PAGE(level2_vmemmap_pgt)
+	.fill	512,8,0
 
 NEXT_PAGE(level2_kernel_pgt)
 	/*
@@ -499,31 +579,79 @@ NEXT_PAGE(level2_kernel_pgt)
 		KERNEL_IMAGE_SIZE/PMD_SIZE)
 
 NEXT_PAGE(level2_fixmap_pgt)
-	.fill	506,8,0
-	.quad	level1_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE
-	/* 8MB reserved for vsyscalls + a 2MB hole = 4 + 1 entries */
-	.fill	5,8,0
+	.quad	level1_modules_pgt - __START_KERNEL_map + 0 * PAGE_SIZE + _KERNPG_TABLE
+	.quad	level1_modules_pgt - __START_KERNEL_map + 1 * PAGE_SIZE + _KERNPG_TABLE
+	.quad	level1_modules_pgt - __START_KERNEL_map + 2 * PAGE_SIZE + _KERNPG_TABLE
+	.quad	level1_modules_pgt - __START_KERNEL_map + 3 * PAGE_SIZE + _KERNPG_TABLE
+	.fill	500,8,0
+	.quad	level1_fixmap_pgt - __START_KERNEL_map + 0 * PAGE_SIZE + _KERNPG_TABLE
+	.quad	level1_fixmap_pgt - __START_KERNEL_map + 1 * PAGE_SIZE + _KERNPG_TABLE
+	.quad	level1_fixmap_pgt - __START_KERNEL_map + 2 * PAGE_SIZE + _KERNPG_TABLE
+	.quad	level1_vsyscall_pgt - __START_KERNEL_map + _KERNPG_TABLE
+	/* 6MB reserved for vsyscalls + a 2MB hole = 3 + 1 entries */
+	.fill	4,8,0
+
+NEXT_PAGE(level1_ident_pgt)
+	.fill	512,8,0
+
+NEXT_PAGE(level1_modules_pgt)
+	.fill	4*512,8,0
 
 NEXT_PAGE(level1_fixmap_pgt)
+	.fill	3*512,8,0
+
+NEXT_PAGE(level1_vsyscall_pgt)
 	.fill	512,8,0
 
 #undef PMDS
 
-	.data
+	.align PAGE_SIZE
+ENTRY(cpu_gdt_table)
+	.rept NR_CPUS
+	.quad	0x0000000000000000	/* NULL descriptor */
+	.quad	0x00cf9b000000ffff	/* __KERNEL32_CS */
+	.quad	0x00af9b000000ffff	/* __KERNEL_CS */
+	.quad	0x00cf93000000ffff	/* __KERNEL_DS */
+	.quad	0x00cffb000000ffff	/* __USER32_CS */
+	.quad	0x00cff3000000ffff	/* __USER_DS, __USER32_DS  */
+	.quad	0x00affb000000ffff	/* __USER_CS */
+
+#ifdef CONFIG_PAX_KERNEXEC
+	.quad	0x00af9b000000ffff	/* __KERNEXEC_KERNEL_CS */
+#else
+	.quad	0x0			/* unused */
+#endif
+
+	.quad	0,0			/* TSS */
+	.quad	0,0			/* LDT */
+	.quad	0,0,0			/* three TLS descriptors */
+	.quad	0x0000f40000000000	/* node/CPU stored in limit */
+	/* asm/segment.h:GDT_ENTRIES must match this */
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	.quad	0x00cf93000000ffff	/* __UDEREF_KERNEL_DS */
+#else
+	.quad	0x0			/* unused */
+#endif
+
+	/* zero the remaining page */
+	.fill PAGE_SIZE / 8 - GDT_ENTRIES,8,0
+	.endr
+
 	.align 16
 	.globl early_gdt_descr
 early_gdt_descr:
 	.word	GDT_ENTRIES*8-1
 early_gdt_descr_base:
-	.quad	INIT_PER_CPU_VAR(gdt_page)
+	.quad	cpu_gdt_table
 
 ENTRY(phys_base)
 	/* This must match the first entry in level2_kernel_pgt */
 	.quad   0x0000000000000000
 
 #include "../../x86/xen/xen-head.S"
-	
-	__PAGE_ALIGNED_BSS
+
+	.section .rodata,"a",@progbits
 NEXT_PAGE(empty_zero_page)
 	.skip PAGE_SIZE
 
diff --git a/arch/x86/kernel/i386_ksyms_32.c b/arch/x86/kernel/i386_ksyms_32.c
index 64341aa..b1e6632 100644
--- a/arch/x86/kernel/i386_ksyms_32.c
+++ b/arch/x86/kernel/i386_ksyms_32.c
@@ -20,8 +20,12 @@ extern void cmpxchg8b_emu(void);
 EXPORT_SYMBOL(cmpxchg8b_emu);
 #endif
 
+EXPORT_SYMBOL_GPL(cpu_gdt_table);
+
 /* Networking helper routines. */
 EXPORT_SYMBOL(csum_partial_copy_generic);
+EXPORT_SYMBOL(csum_partial_copy_generic_to_user);
+EXPORT_SYMBOL(csum_partial_copy_generic_from_user);
 
 EXPORT_SYMBOL(__get_user_1);
 EXPORT_SYMBOL(__get_user_2);
@@ -42,3 +46,11 @@ EXPORT_SYMBOL(empty_zero_page);
 EXPORT_SYMBOL(___preempt_schedule);
 EXPORT_SYMBOL(___preempt_schedule_notrace);
 #endif
+
+#ifdef CONFIG_PAX_KERNEXEC
+EXPORT_SYMBOL(__LOAD_PHYSICAL_ADDR);
+#endif
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+EXPORT_SYMBOL(cpu_pgd);
+#endif
diff --git a/arch/x86/kernel/i8259.c b/arch/x86/kernel/i8259.c
index be22f5a..a04fa14 100644
--- a/arch/x86/kernel/i8259.c
+++ b/arch/x86/kernel/i8259.c
@@ -110,7 +110,7 @@ static int i8259A_irq_pending(unsigned int irq)
 static void make_8259A_irq(unsigned int irq)
 {
 	disable_irq_nosync(irq);
-	io_apic_irqs &= ~(1<<irq);
+	io_apic_irqs &= ~(1UL<<irq);
 	irq_set_chip_and_handler(irq, &i8259A_chip, handle_level_irq);
 	enable_irq(irq);
 }
@@ -208,7 +208,7 @@ spurious_8259A_irq:
 			       "spurious 8259A interrupt: IRQ%d.\n", irq);
 			spurious_irq_mask |= irqmask;
 		}
-		atomic_inc(&irq_err_count);
+		atomic_inc_unchecked(&irq_err_count);
 		/*
 		 * Theoretically we do not have to handle this IRQ,
 		 * but in Linux this does not cause problems and is
@@ -356,14 +356,16 @@ static void init_8259A(int auto_eoi)
 	/* (slave's support for AEOI in flat mode is to be investigated) */
 	outb_pic(SLAVE_ICW4_DEFAULT, PIC_SLAVE_IMR);
 
+	pax_open_kernel();
 	if (auto_eoi)
 		/*
 		 * In AEOI mode we just have to mask the interrupt
 		 * when acking.
 		 */
-		i8259A_chip.irq_mask_ack = disable_8259A_irq;
+		const_cast(i8259A_chip.irq_mask_ack) = disable_8259A_irq;
 	else
-		i8259A_chip.irq_mask_ack = mask_and_ack_8259A;
+		const_cast(i8259A_chip.irq_mask_ack) = mask_and_ack_8259A;
+	pax_close_kernel();
 
 	udelay(100);		/* wait for 8259A to initialize */
 
diff --git a/arch/x86/kernel/io_delay.c b/arch/x86/kernel/io_delay.c
index a979b5b..1d6db75 100644
--- a/arch/x86/kernel/io_delay.c
+++ b/arch/x86/kernel/io_delay.c
@@ -58,7 +58,7 @@ static int __init dmi_io_delay_0xed_port(const struct dmi_system_id *id)
  * Quirk table for systems that misbehave (lock up, etc.) if port
  * 0x80 is used:
  */
-static struct dmi_system_id __initdata io_delay_0xed_port_dmi_table[] = {
+static const struct dmi_system_id __initconst io_delay_0xed_port_dmi_table[] = {
 	{
 		.callback	= dmi_io_delay_0xed_port,
 		.ident		= "Compaq Presario V6000",
diff --git a/arch/x86/kernel/ioport.c b/arch/x86/kernel/ioport.c
index 589b319..41d6575 100644
--- a/arch/x86/kernel/ioport.c
+++ b/arch/x86/kernel/ioport.c
@@ -6,6 +6,7 @@
 #include <linux/sched.h>
 #include <linux/kernel.h>
 #include <linux/capability.h>
+#include <linux/security.h>
 #include <linux/errno.h>
 #include <linux/types.h>
 #include <linux/ioport.h>
@@ -30,6 +31,12 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
 		return -EINVAL;
 	if (turn_on && !capable(CAP_SYS_RAWIO))
 		return -EPERM;
+#ifdef CONFIG_GRKERNSEC_IO
+	if (turn_on && grsec_disable_privio) {
+		gr_handle_ioperm();
+		return -ENODEV;
+	}
+#endif
 
 	/*
 	 * If it's the first ioperm() call in this thread's lifetime, set the
@@ -54,7 +61,7 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
 	 * because the ->io_bitmap_max value must match the bitmap
 	 * contents:
 	 */
-	tss = &per_cpu(cpu_tss, get_cpu());
+	tss = cpu_tss + get_cpu();
 
 	if (turn_on)
 		bitmap_clear(t->io_bitmap_ptr, from, num);
@@ -110,6 +117,12 @@ SYSCALL_DEFINE1(iopl, unsigned int, level)
 	if (level > old) {
 		if (!capable(CAP_SYS_RAWIO))
 			return -EPERM;
+#ifdef CONFIG_GRKERNSEC_IO
+		if (grsec_disable_privio) {
+			gr_handle_iopl();
+			return -ENODEV;
+		}
+#endif
 	}
 	regs->flags = (regs->flags & ~X86_EFLAGS_IOPL) |
 		(level << X86_EFLAGS_IOPL_BIT);
diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
index 61521dc..5ce5a37 100644
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -28,7 +28,7 @@ EXPORT_PER_CPU_SYMBOL(irq_stat);
 DEFINE_PER_CPU(struct pt_regs *, irq_regs);
 EXPORT_PER_CPU_SYMBOL(irq_regs);
 
-atomic_t irq_err_count;
+atomic_unchecked_t irq_err_count;
 
 /* Function pointer for generic interrupt vector handling */
 void (*x86_platform_ipi_callback)(void) = NULL;
@@ -147,9 +147,9 @@ int arch_show_interrupts(struct seq_file *p, int prec)
 		seq_puts(p, "  Hypervisor callback interrupts\n");
 	}
 #endif
-	seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count));
+	seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read_unchecked(&irq_err_count));
 #if defined(CONFIG_X86_IO_APIC)
-	seq_printf(p, "%*s: %10u\n", prec, "MIS", atomic_read(&irq_mis_count));
+	seq_printf(p, "%*s: %10u\n", prec, "MIS", atomic_read_unchecked(&irq_mis_count));
 #endif
 #ifdef CONFIG_HAVE_KVM
 	seq_printf(p, "%*s: ", prec, "PIN");
@@ -201,7 +201,7 @@ u64 arch_irq_stat_cpu(unsigned int cpu)
 
 u64 arch_irq_stat(void)
 {
-	u64 sum = atomic_read(&irq_err_count);
+	u64 sum = atomic_read_unchecked(&irq_err_count);
 	return sum;
 }
 
diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c
index 38da8f2..5653e36 100644
--- a/arch/x86/kernel/irq_32.c
+++ b/arch/x86/kernel/irq_32.c
@@ -23,6 +23,8 @@
 
 #ifdef CONFIG_DEBUG_STACKOVERFLOW
 
+extern void gr_handle_kernel_exploit(void);
+
 int sysctl_panic_on_stackoverflow __read_mostly;
 
 /* Debugging check for stack overflow: is there less than 1KB free? */
@@ -33,13 +35,14 @@ static int check_stack_overflow(void)
 	__asm__ __volatile__("andl %%esp,%0" :
 			     "=r" (sp) : "0" (THREAD_SIZE - 1));
 
-	return sp < (sizeof(struct thread_info) + STACK_WARN);
+	return sp < STACK_WARN;
 }
 
 static void print_stack_overflow(void)
 {
 	printk(KERN_WARNING "low stack detected by irq handler\n");
 	dump_stack();
+	gr_handle_kernel_exploit();
 	if (sysctl_panic_on_stackoverflow)
 		panic("low stack detected by irq handler - check messages\n");
 }
@@ -70,10 +73,9 @@ static inline void *current_stack(void)
 
 static inline int execute_on_irq_stack(int overflow, struct irq_desc *desc)
 {
-	struct irq_stack *curstk, *irqstk;
+	struct irq_stack *irqstk;
 	u32 *isp, *prev_esp, arg1;
 
-	curstk = (struct irq_stack *) current_stack();
 	irqstk = __this_cpu_read(hardirq_stack);
 
 	/*
@@ -82,15 +84,19 @@ static inline int execute_on_irq_stack(int overflow, struct irq_desc *desc)
 	 * handler) we can't do that and just have to keep using the
 	 * current stack (which is the irq stack already after all)
 	 */
-	if (unlikely(curstk == irqstk))
+	if (unlikely((void *)current_stack_pointer - (void *)irqstk < THREAD_SIZE))
 		return 0;
 
-	isp = (u32 *) ((char *)irqstk + sizeof(*irqstk));
+	isp = (u32 *) ((char *)irqstk + sizeof(*irqstk) - 8);
 
 	/* Save the next esp at the bottom of the stack */
 	prev_esp = (u32 *)irqstk;
 	*prev_esp = current_stack_pointer();
 
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	__set_fs(MAKE_MM_SEG(0));
+#endif
+
 	if (unlikely(overflow))
 		call_on_stack(print_stack_overflow, isp);
 
@@ -101,6 +107,11 @@ static inline int execute_on_irq_stack(int overflow, struct irq_desc *desc)
 		     :  "0" (desc),   "1" (isp),
 			"D" (desc->handle_irq)
 		     : "memory", "cc", "ecx");
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	__set_fs(current_thread_info()->addr_limit);
+#endif
+
 	return 1;
 }
 
@@ -109,32 +120,18 @@ static inline int execute_on_irq_stack(int overflow, struct irq_desc *desc)
  */
 void irq_ctx_init(int cpu)
 {
-	struct irq_stack *irqstk;
-
 	if (per_cpu(hardirq_stack, cpu))
 		return;
 
-	irqstk = page_address(alloc_pages_node(cpu_to_node(cpu),
-					       THREADINFO_GFP,
-					       THREAD_SIZE_ORDER));
-	per_cpu(hardirq_stack, cpu) = irqstk;
-
-	irqstk = page_address(alloc_pages_node(cpu_to_node(cpu),
-					       THREADINFO_GFP,
-					       THREAD_SIZE_ORDER));
-	per_cpu(softirq_stack, cpu) = irqstk;
-
-	printk(KERN_DEBUG "CPU %u irqstacks, hard=%p soft=%p\n",
-	       cpu, per_cpu(hardirq_stack, cpu),  per_cpu(softirq_stack, cpu));
+	per_cpu(hardirq_stack, cpu) = page_address(alloc_pages_node(cpu_to_node(cpu), THREADINFO_GFP, THREAD_SIZE_ORDER));
+	per_cpu(softirq_stack, cpu) = page_address(alloc_pages_node(cpu_to_node(cpu), THREADINFO_GFP, THREAD_SIZE_ORDER));
 }
 
 void do_softirq_own_stack(void)
 {
-	struct thread_info *curstk;
 	struct irq_stack *irqstk;
 	u32 *isp, *prev_esp;
 
-	curstk = current_stack();
 	irqstk = __this_cpu_read(softirq_stack);
 
 	/* build the stack frame on the softirq stack */
@@ -144,7 +141,16 @@ void do_softirq_own_stack(void)
 	prev_esp = (u32 *)irqstk;
 	*prev_esp = current_stack_pointer();
 
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	__set_fs(MAKE_MM_SEG(0));
+#endif
+
 	call_on_stack(__do_softirq, isp);
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	__set_fs(current_thread_info()->addr_limit);
+#endif
+
 }
 
 bool handle_irq(struct irq_desc *desc, struct pt_regs *regs)
diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c
index 206d0b9..ecb677c 100644
--- a/arch/x86/kernel/irq_64.c
+++ b/arch/x86/kernel/irq_64.c
@@ -20,6 +20,8 @@
 #include <asm/idle.h>
 #include <asm/apic.h>
 
+extern void gr_handle_kernel_exploit(void);
+
 int sysctl_panic_on_stackoverflow;
 
 /*
@@ -63,6 +65,8 @@ static inline void stack_overflow_check(struct pt_regs *regs)
 		irq_stack_top, irq_stack_bottom,
 		estack_top, estack_bottom);
 
+	gr_handle_kernel_exploit();
+
 	if (sysctl_panic_on_stackoverflow)
 		panic("low stack detected by irq handler - check messages\n");
 #endif
diff --git a/arch/x86/kernel/jump_label.c b/arch/x86/kernel/jump_label.c
index e565e0e..fdfeb45 100644
--- a/arch/x86/kernel/jump_label.c
+++ b/arch/x86/kernel/jump_label.c
@@ -31,6 +31,8 @@ static void bug_at(unsigned char *ip, int line)
 	 * Something went wrong. Crash the box, as something could be
 	 * corrupting the kernel.
 	 */
+	ip = (unsigned char *)ktla_ktva((unsigned long)ip);
+	pr_warning("Unexpected op at %pS [%p] %s:%d\n", ip, ip, __FILE__, line);
 	pr_warning("Unexpected op at %pS [%p] (%02x %02x %02x %02x %02x) %s:%d\n",
 	       ip, ip, ip[0], ip[1], ip[2], ip[3], ip[4], __FILE__, line);
 	BUG();
@@ -51,7 +53,7 @@ static void __jump_label_transform(struct jump_entry *entry,
 			 * Jump label is enabled for the first time.
 			 * So we expect a default_nop...
 			 */
-			if (unlikely(memcmp((void *)entry->code, default_nop, 5)
+			if (unlikely(memcmp((void *)ktla_ktva(entry->code), default_nop, 5)
 				     != 0))
 				bug_at((void *)entry->code, __LINE__);
 		} else {
@@ -59,7 +61,7 @@ static void __jump_label_transform(struct jump_entry *entry,
 			 * ...otherwise expect an ideal_nop. Otherwise
 			 * something went horribly wrong.
 			 */
-			if (unlikely(memcmp((void *)entry->code, ideal_nop, 5)
+			if (unlikely(memcmp((void *)ktla_ktva(entry->code), ideal_nop, 5)
 				     != 0))
 				bug_at((void *)entry->code, __LINE__);
 		}
@@ -75,13 +77,13 @@ static void __jump_label_transform(struct jump_entry *entry,
 		 * are converting the default nop to the ideal nop.
 		 */
 		if (init) {
-			if (unlikely(memcmp((void *)entry->code, default_nop, 5) != 0))
+			if (unlikely(memcmp((void *)ktla_ktva(entry->code), default_nop, 5) != 0))
 				bug_at((void *)entry->code, __LINE__);
 		} else {
 			code.jump = 0xe9;
 			code.offset = entry->target -
 				(entry->code + JUMP_LABEL_NOP_SIZE);
-			if (unlikely(memcmp((void *)entry->code, &code, 5) != 0))
+			if (unlikely(memcmp((void *)ktla_ktva(entry->code), &code, 5) != 0))
 				bug_at((void *)entry->code, __LINE__);
 		}
 		memcpy(&code, ideal_nops[NOP_ATOMIC5], JUMP_LABEL_NOP_SIZE);
diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c
index 2da6ee9..4cbe3af 100644
--- a/arch/x86/kernel/kgdb.c
+++ b/arch/x86/kernel/kgdb.c
@@ -228,7 +228,10 @@ static void kgdb_correct_hw_break(void)
 		bp->attr.bp_addr = breakinfo[breakno].addr;
 		bp->attr.bp_len = breakinfo[breakno].len;
 		bp->attr.bp_type = breakinfo[breakno].type;
-		info->address = breakinfo[breakno].addr;
+		if (breakinfo[breakno].type == X86_BREAKPOINT_EXECUTE)
+			info->address = ktla_ktva(breakinfo[breakno].addr);
+		else
+			info->address = breakinfo[breakno].addr;
 		info->len = breakinfo[breakno].len;
 		info->type = breakinfo[breakno].type;
 		val = arch_install_hw_breakpoint(bp);
@@ -475,12 +478,12 @@ int kgdb_arch_handle_exception(int e_vector, int signo, int err_code,
 	case 'k':
 		/* clear the trace bit */
 		linux_regs->flags &= ~X86_EFLAGS_TF;
-		atomic_set(&kgdb_cpu_doing_single_step, -1);
+		atomic_set_unchecked(&kgdb_cpu_doing_single_step, -1);
 
 		/* set the trace bit if we're stepping */
 		if (remcomInBuffer[0] == 's') {
 			linux_regs->flags |= X86_EFLAGS_TF;
-			atomic_set(&kgdb_cpu_doing_single_step,
+			atomic_set_unchecked(&kgdb_cpu_doing_single_step,
 				   raw_smp_processor_id());
 		}
 
@@ -550,7 +553,7 @@ static int __kgdb_notify(struct die_args *args, unsigned long cmd)
 
 	switch (cmd) {
 	case DIE_DEBUG:
-		if (atomic_read(&kgdb_cpu_doing_single_step) != -1) {
+		if (atomic_read_unchecked(&kgdb_cpu_doing_single_step) != -1) {
 			if (user_mode(regs))
 				return single_step_cont(regs, args);
 			break;
@@ -753,11 +756,11 @@ int kgdb_arch_set_breakpoint(struct kgdb_bkpt *bpt)
 	char opc[BREAK_INSTR_SIZE];
 
 	bpt->type = BP_BREAKPOINT;
-	err = probe_kernel_read(bpt->saved_instr, (char *)bpt->bpt_addr,
+	err = probe_kernel_read(bpt->saved_instr, (const void *)ktla_ktva(bpt->bpt_addr),
 				BREAK_INSTR_SIZE);
 	if (err)
 		return err;
-	err = probe_kernel_write((char *)bpt->bpt_addr,
+	err = probe_kernel_write((void *)ktla_ktva(bpt->bpt_addr),
 				 arch_kgdb_ops.gdb_bpt_instr, BREAK_INSTR_SIZE);
 	if (!err)
 		return err;
@@ -769,7 +772,7 @@ int kgdb_arch_set_breakpoint(struct kgdb_bkpt *bpt)
 		return -EBUSY;
 	text_poke((void *)bpt->bpt_addr, arch_kgdb_ops.gdb_bpt_instr,
 		  BREAK_INSTR_SIZE);
-	err = probe_kernel_read(opc, (char *)bpt->bpt_addr, BREAK_INSTR_SIZE);
+	err = probe_kernel_read(opc, ktla_ktva((char *)bpt->bpt_addr), BREAK_INSTR_SIZE);
 	if (err)
 		return err;
 	if (memcmp(opc, arch_kgdb_ops.gdb_bpt_instr, BREAK_INSTR_SIZE))
@@ -793,13 +796,13 @@ int kgdb_arch_remove_breakpoint(struct kgdb_bkpt *bpt)
 	if (mutex_is_locked(&text_mutex))
 		goto knl_write;
 	text_poke((void *)bpt->bpt_addr, bpt->saved_instr, BREAK_INSTR_SIZE);
-	err = probe_kernel_read(opc, (char *)bpt->bpt_addr, BREAK_INSTR_SIZE);
+	err = probe_kernel_read(opc, ktla_ktva((char *)bpt->bpt_addr), BREAK_INSTR_SIZE);
 	if (err || memcmp(opc, bpt->saved_instr, BREAK_INSTR_SIZE))
 		goto knl_write;
 	return err;
 
 knl_write:
-	return probe_kernel_write((char *)bpt->bpt_addr,
+	return probe_kernel_write((void *)ktla_ktva(bpt->bpt_addr),
 				  (char *)bpt->saved_instr, BREAK_INSTR_SIZE);
 }
 
diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
index ae703ac..d510d8a 100644
--- a/arch/x86/kernel/kprobes/core.c
+++ b/arch/x86/kernel/kprobes/core.c
@@ -121,9 +121,12 @@ __synthesize_relative_insn(void *from, void *to, u8 op)
 		s32 raddr;
 	} __packed *insn;
 
-	insn = (struct __arch_relative_insn *)from;
+	insn = (struct __arch_relative_insn *)ktla_ktva((unsigned long)from);
+
+	pax_open_kernel();
 	insn->raddr = (s32)((long)(to) - ((long)(from) + 5));
 	insn->op = op;
+	pax_close_kernel();
 }
 
 /* Insert a jump instruction at address 'from', which jumps to address 'to'.*/
@@ -169,7 +172,7 @@ int can_boost(kprobe_opcode_t *opcodes)
 	kprobe_opcode_t opcode;
 	kprobe_opcode_t *orig_opcodes = opcodes;
 
-	if (search_exception_tables((unsigned long)opcodes))
+	if (search_exception_tables(ktva_ktla((unsigned long)opcodes)))
 		return 0;	/* Page fault may occur on this address. */
 
 retry:
@@ -261,12 +264,12 @@ __recover_probed_insn(kprobe_opcode_t *buf, unsigned long addr)
 	 * Fortunately, we know that the original code is the ideal 5-byte
 	 * long NOP.
 	 */
-	memcpy(buf, (void *)addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
+	memcpy(buf, (void *)ktla_ktva(addr), MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
 	if (faddr)
 		memcpy(buf, ideal_nops[NOP_ATOMIC5], 5);
 	else
 		buf[0] = kp->opcode;
-	return (unsigned long)buf;
+	return ktva_ktla((unsigned long)buf);
 }
 
 /*
@@ -368,7 +371,9 @@ int __copy_instruction(u8 *dest, u8 *src)
 	/* Another subsystem puts a breakpoint, failed to recover */
 	if (insn.opcode.bytes[0] == BREAKPOINT_INSTRUCTION)
 		return 0;
+	pax_open_kernel();
 	memcpy(dest, insn.kaddr, length);
+	pax_close_kernel();
 
 #ifdef CONFIG_X86_64
 	if (insn_rip_relative(&insn)) {
@@ -395,7 +400,9 @@ int __copy_instruction(u8 *dest, u8 *src)
 			return 0;
 		}
 		disp = (u8 *) dest + insn_offset_displacement(&insn);
+		pax_open_kernel();
 		*(s32 *) disp = (s32) newdisp;
+		pax_close_kernel();
 	}
 #endif
 	return length;
@@ -537,7 +544,7 @@ static void setup_singlestep(struct kprobe *p, struct pt_regs *regs,
 		 * nor set current_kprobe, because it doesn't use single
 		 * stepping.
 		 */
-		regs->ip = (unsigned long)p->ainsn.insn;
+		regs->ip = ktva_ktla((unsigned long)p->ainsn.insn);
 		preempt_enable_no_resched();
 		return;
 	}
@@ -554,9 +561,9 @@ static void setup_singlestep(struct kprobe *p, struct pt_regs *regs,
 	regs->flags &= ~X86_EFLAGS_IF;
 	/* single step inline if the instruction is an int3 */
 	if (p->opcode == BREAKPOINT_INSTRUCTION)
-		regs->ip = (unsigned long)p->addr;
+		regs->ip = ktla_ktva((unsigned long)p->addr);
 	else
-		regs->ip = (unsigned long)p->ainsn.insn;
+		regs->ip = ktva_ktla((unsigned long)p->ainsn.insn);
 }
 NOKPROBE_SYMBOL(setup_singlestep);
 
@@ -641,7 +648,7 @@ int kprobe_int3_handler(struct pt_regs *regs)
 				setup_singlestep(p, regs, kcb, 0);
 			return 1;
 		}
-	} else if (*addr != BREAKPOINT_INSTRUCTION) {
+	} else if (*(kprobe_opcode_t *)ktla_ktva((unsigned long)addr) != BREAKPOINT_INSTRUCTION) {
 		/*
 		 * The breakpoint instruction was removed right
 		 * after we hit it.  Another cpu has removed
@@ -687,6 +694,9 @@ asm(
 	"	movq %rax, 152(%rsp)\n"
 	RESTORE_REGS_STRING
 	"	popfq\n"
+#ifdef KERNEXEC_PLUGIN
+	"	btsq $63,(%rsp)\n"
+#endif
 #else
 	"	pushf\n"
 	SAVE_REGS_STRING
@@ -828,7 +838,7 @@ static void resume_execution(struct kprobe *p, struct pt_regs *regs,
 			     struct kprobe_ctlblk *kcb)
 {
 	unsigned long *tos = stack_addr(regs);
-	unsigned long copy_ip = (unsigned long)p->ainsn.insn;
+	unsigned long copy_ip = ktva_ktla((unsigned long)p->ainsn.insn);
 	unsigned long orig_ip = (unsigned long)p->addr;
 	kprobe_opcode_t *insn = p->ainsn.insn;
 
diff --git a/arch/x86/kernel/kprobes/opt.c b/arch/x86/kernel/kprobes/opt.c
index 7b3b9d1..e2478b91 100644
--- a/arch/x86/kernel/kprobes/opt.c
+++ b/arch/x86/kernel/kprobes/opt.c
@@ -79,6 +79,7 @@ found:
 /* Insert a move instruction which sets a pointer to eax/rdi (1st arg). */
 static void synthesize_set_arg1(kprobe_opcode_t *addr, unsigned long val)
 {
+	pax_open_kernel();
 #ifdef CONFIG_X86_64
 	*addr++ = 0x48;
 	*addr++ = 0xbf;
@@ -86,6 +87,7 @@ static void synthesize_set_arg1(kprobe_opcode_t *addr, unsigned long val)
 	*addr++ = 0xb8;
 #endif
 	*(unsigned long *)addr = val;
+	pax_close_kernel();
 }
 
 asm (
@@ -342,7 +344,7 @@ int arch_prepare_optimized_kprobe(struct optimized_kprobe *op,
 	 * Verify if the address gap is in 2GB range, because this uses
 	 * a relative jump.
 	 */
-	rel = (long)op->optinsn.insn - (long)op->kp.addr + RELATIVEJUMP_SIZE;
+	rel = (long)op->optinsn.insn - ktla_ktva((long)op->kp.addr) + RELATIVEJUMP_SIZE;
 	if (abs(rel) > 0x7fffffff) {
 		__arch_remove_optimized_kprobe(op, 0);
 		return -ERANGE;
@@ -359,16 +361,18 @@ int arch_prepare_optimized_kprobe(struct optimized_kprobe *op,
 	op->optinsn.size = ret;
 
 	/* Copy arch-dep-instance from template */
-	memcpy(buf, &optprobe_template_entry, TMPL_END_IDX);
+	pax_open_kernel();
+	memcpy(buf, ktla_ktva(&optprobe_template_entry), TMPL_END_IDX);
+	pax_close_kernel();
 
 	/* Set probe information */
 	synthesize_set_arg1(buf + TMPL_MOVE_IDX, (unsigned long)op);
 
 	/* Set probe function call */
-	synthesize_relcall(buf + TMPL_CALL_IDX, optimized_callback);
+	synthesize_relcall(ktva_ktla(buf) + TMPL_CALL_IDX, optimized_callback);
 
 	/* Set returning jmp instruction at the tail of out-of-line buffer */
-	synthesize_reljump(buf + TMPL_END_IDX + op->optinsn.size,
+	synthesize_reljump(ktva_ktla(buf) + TMPL_END_IDX + op->optinsn.size,
 			   (u8 *)op->kp.addr + op->optinsn.size);
 
 	flush_icache_range((unsigned long) buf,
@@ -393,7 +397,7 @@ void arch_optimize_kprobes(struct list_head *oplist)
 		WARN_ON(kprobe_disabled(&op->kp));
 
 		/* Backup instructions which will be replaced by jump address */
-		memcpy(op->optinsn.copied_insn, op->kp.addr + INT3_SIZE,
+		memcpy(op->optinsn.copied_insn, ktla_ktva(op->kp.addr) + INT3_SIZE,
 		       RELATIVE_ADDR_SIZE);
 
 		insn_buf[0] = RELATIVEJUMP_OPCODE;
@@ -441,7 +445,7 @@ int setup_detour_execution(struct kprobe *p, struct pt_regs *regs, int reenter)
 		/* This kprobe is really able to run optimized path. */
 		op = container_of(p, struct optimized_kprobe, kp);
 		/* Detour through copied instructions */
-		regs->ip = (unsigned long)op->optinsn.insn + TMPL_END_IDX;
+		regs->ip = ktva_ktla((unsigned long)op->optinsn.insn) + TMPL_END_IDX;
 		if (!reenter)
 			reset_current_kprobe();
 		preempt_enable_no_resched();
diff --git a/arch/x86/kernel/ksysfs.c b/arch/x86/kernel/ksysfs.c
index c2bedae..25e7ab60 100644
--- a/arch/x86/kernel/ksysfs.c
+++ b/arch/x86/kernel/ksysfs.c
@@ -184,7 +184,7 @@ out:
 
 static struct kobj_attribute type_attr = __ATTR_RO(type);
 
-static struct bin_attribute data_attr = {
+static bin_attribute_no_const data_attr __read_only = {
 	.attr = {
 		.name = "data",
 		.mode = S_IRUGO,
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 8079508..b34be72 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -554,7 +554,7 @@ static uint32_t __init kvm_detect(void)
 	return kvm_cpuid_base();
 }
 
-const struct hypervisor_x86 x86_hyper_kvm __refconst = {
+const struct hypervisor_x86 x86_hyper_kvm = {
 	.name			= "KVM",
 	.detect			= kvm_detect,
 	.x2apic_available	= kvm_para_available,
diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c
index 1d39bfb..4b2e4b0 100644
--- a/arch/x86/kernel/kvmclock.c
+++ b/arch/x86/kernel/kvmclock.c
@@ -29,7 +29,7 @@
 #include <asm/x86_init.h>
 #include <asm/reboot.h>
 
-static int kvmclock = 1;
+static int kvmclock __read_only = 1;
 static int msr_kvm_system_time = MSR_KVM_SYSTEM_TIME;
 static int msr_kvm_wall_clock = MSR_KVM_WALL_CLOCK;
 static cycle_t kvm_sched_clock_offset;
@@ -42,7 +42,7 @@ static int parse_no_kvmclock(char *arg)
 early_param("no-kvmclock", parse_no_kvmclock);
 
 /* The hypervisor will put information about time periodically here */
-static struct pvclock_vsyscall_time_info *hv_clock;
+static struct pvclock_vsyscall_time_info hv_clock[NR_CPUS] __page_aligned_bss;
 static struct pvclock_wall_clock wall_clock;
 
 struct pvclock_vsyscall_time_info *pvclock_pvti_cpu0_va(void)
@@ -161,7 +161,7 @@ bool kvm_check_and_clear_guest_paused(void)
 	struct pvclock_vcpu_time_info *src;
 	int cpu = smp_processor_id();
 
-	if (!hv_clock)
+	if (!kvmclock)
 		return ret;
 
 	src = &hv_clock[cpu].pvti;
@@ -188,7 +188,7 @@ int kvm_register_clock(char *txt)
 	int low, high, ret;
 	struct pvclock_vcpu_time_info *src;
 
-	if (!hv_clock)
+	if (!kvmclock)
 		return 0;
 
 	src = &hv_clock[cpu].pvti;
@@ -248,7 +248,6 @@ static void kvm_shutdown(void)
 void __init kvmclock_init(void)
 {
 	struct pvclock_vcpu_time_info *vcpu_time;
-	unsigned long mem;
 	int size, cpu;
 	u8 flags;
 
@@ -266,15 +265,8 @@ void __init kvmclock_init(void)
 	printk(KERN_INFO "kvm-clock: Using msrs %x and %x",
 		msr_kvm_system_time, msr_kvm_wall_clock);
 
-	mem = memblock_alloc(size, PAGE_SIZE);
-	if (!mem)
-		return;
-	hv_clock = __va(mem);
-	memset(hv_clock, 0, size);
-
 	if (kvm_register_clock("primary cpu clock")) {
-		hv_clock = NULL;
-		memblock_free(mem, size);
+		kvmclock = 0;
 		return;
 	}
 
@@ -314,7 +306,7 @@ int __init kvm_setup_vsyscall_timeinfo(void)
 	struct pvclock_vcpu_time_info *vcpu_time;
 	unsigned int size;
 
-	if (!hv_clock)
+	if (!kvmclock)
 		return 0;
 
 	size = PAGE_ALIGN(sizeof(struct pvclock_vsyscall_time_info)*NR_CPUS);
diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c
index 6707039..254f32c 100644
--- a/arch/x86/kernel/ldt.c
+++ b/arch/x86/kernel/ldt.c
@@ -11,6 +11,7 @@
 #include <linux/sched.h>
 #include <linux/string.h>
 #include <linux/mm.h>
+#include <linux/ratelimit.h>
 #include <linux/smp.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
@@ -21,6 +22,14 @@
 #include <asm/mmu_context.h>
 #include <asm/syscalls.h>
 
+#ifdef CONFIG_GRKERNSEC
+int sysctl_modify_ldt __read_only = 0;
+#elif defined(CONFIG_DEFAULT_MODIFY_LDT_SYSCALL)
+int sysctl_modify_ldt __read_only = 1;
+#else
+int sysctl_modify_ldt __read_only = 0;
+#endif
+
 /* context.lock is held for us, so we don't need any locking. */
 static void flush_ldt(void *current_mm)
 {
@@ -109,6 +118,23 @@ int init_new_context_ldt(struct task_struct *tsk, struct mm_struct *mm)
 	struct mm_struct *old_mm;
 	int retval = 0;
 
+	if (tsk == current) {
+		mm->context.vdso = 0;
+
+#ifdef CONFIG_X86_32
+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
+		mm->context.user_cs_base = 0UL;
+		mm->context.user_cs_limit = ~0UL;
+
+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP)
+		cpumask_clear(&mm->context.cpu_user_cs_mask);
+#endif
+
+#endif
+#endif
+
+	}
+
 	mutex_init(&mm->context.lock);
 	old_mm = current->mm;
 	if (!old_mm) {
@@ -235,6 +261,14 @@ static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode)
 		/* The user wants to clear the entry. */
 		memset(&ldt, 0, sizeof(ldt));
 	} else {
+
+#ifdef CONFIG_PAX_SEGMEXEC
+		if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (ldt_info.contents & MODIFY_LDT_CONTENTS_CODE)) {
+			error = -EINVAL;
+			goto out;
+		}
+#endif
+
 		if (!IS_ENABLED(CONFIG_X86_16BIT) && !ldt_info.seg_32bit) {
 			error = -EINVAL;
 			goto out;
@@ -276,6 +310,15 @@ asmlinkage int sys_modify_ldt(int func, void __user *ptr,
 {
 	int ret = -ENOSYS;
 
+	if (!sysctl_modify_ldt) {
+		printk_ratelimited(KERN_INFO
+			"Denied a call to modify_ldt() from %s[%d] (uid: %d)."
+			" Adjust sysctl if this was not an exploit attempt.\n",
+			current->comm, task_pid_nr(current),
+			from_kuid_munged(current_user_ns(), current_uid()));
+		return ret;
+	}
+
 	switch (func) {
 	case 0:
 		ret = read_ldt(ptr, bytecount);
diff --git a/arch/x86/kernel/livepatch.c b/arch/x86/kernel/livepatch.c
index 92fc1a5..478b427 100644
--- a/arch/x86/kernel/livepatch.c
+++ b/arch/x86/kernel/livepatch.c
@@ -38,8 +38,10 @@ int klp_write_module_reloc(struct module *mod, unsigned long type,
 {
 	size_t size = 4;
 	unsigned long val;
-	unsigned long core = (unsigned long)mod->core_layout.base;
-	unsigned long core_size = mod->core_layout.size;
+	unsigned long core_rx = (unsigned long)mod->core_layout.base_rx;
+	unsigned long core_rw = (unsigned long)mod->core_layout.base_rw;
+	unsigned long core_size_rx = mod->core_layout.size_rx;
+	unsigned long core_size_rw = mod->core_layout.size_rw;
 
 	switch (type) {
 	case R_X86_64_NONE:
@@ -62,7 +64,8 @@ int klp_write_module_reloc(struct module *mod, unsigned long type,
 		return -EINVAL;
 	}
 
-	if (loc < core || loc >= core + core_size)
+	if ((loc < core_rx || loc >= core_rx + core_size_rx) &&
+	    (loc < core_rw || loc >= core_rw + core_size_rw))
 		/* loc does not point to any symbol inside the module */
 		return -EINVAL;
 
diff --git a/arch/x86/kernel/machine_kexec_32.c b/arch/x86/kernel/machine_kexec_32.c
index 469b23d..5449cfe 100644
--- a/arch/x86/kernel/machine_kexec_32.c
+++ b/arch/x86/kernel/machine_kexec_32.c
@@ -26,7 +26,7 @@
 #include <asm/cacheflush.h>
 #include <asm/debugreg.h>
 
-static void set_idt(void *newidt, __u16 limit)
+static void set_idt(struct desc_struct *newidt, __u16 limit)
 {
 	struct desc_ptr curidt;
 
@@ -38,7 +38,7 @@ static void set_idt(void *newidt, __u16 limit)
 }
 
 
-static void set_gdt(void *newgdt, __u16 limit)
+static void set_gdt(struct desc_struct *newgdt, __u16 limit)
 {
 	struct desc_ptr curgdt;
 
@@ -216,7 +216,7 @@ void machine_kexec(struct kimage *image)
 	}
 
 	control_page = page_address(image->control_code_page);
-	memcpy(control_page, relocate_kernel, KEXEC_CONTROL_CODE_MAX_SIZE);
+	memcpy(control_page, (void *)ktla_ktva((unsigned long)relocate_kernel), KEXEC_CONTROL_CODE_MAX_SIZE);
 
 	relocate_kernel_ptr = control_page;
 	page_list[PA_CONTROL_PAGE] = __pa(control_page);
diff --git a/arch/x86/kernel/mcount_64.S b/arch/x86/kernel/mcount_64.S
index ed48a9f..23a6a8f 100644
--- a/arch/x86/kernel/mcount_64.S
+++ b/arch/x86/kernel/mcount_64.S
@@ -7,7 +7,7 @@
 #include <linux/linkage.h>
 #include <asm/ptrace.h>
 #include <asm/ftrace.h>
-
+#include <asm/alternative-asm.h>
 
 	.code64
 	.section .entry.text, "ax"
@@ -148,8 +148,9 @@
 #ifdef CONFIG_DYNAMIC_FTRACE
 
 ENTRY(function_hook)
+	pax_force_retaddr
 	retq
-END(function_hook)
+ENDPROC(function_hook)
 
 ENTRY(ftrace_caller)
 	/* save_mcount_regs fills in first two parameters */
@@ -182,9 +183,10 @@ GLOBAL(ftrace_graph_call)
 	jmp ftrace_stub
 #endif
 
-GLOBAL(ftrace_stub)
+RAP_ENTRY(ftrace_stub)
+	pax_force_retaddr
 	retq
-END(ftrace_caller)
+ENDPROC(ftrace_caller)
 
 ENTRY(ftrace_regs_caller)
 	/* Save the current flags before any operations that can change them */
@@ -255,7 +257,7 @@ GLOBAL(ftrace_regs_caller_end)
 
 	jmp ftrace_epilogue
 
-END(ftrace_regs_caller)
+ENDPROC(ftrace_regs_caller)
 
 
 #else /* ! CONFIG_DYNAMIC_FTRACE */
@@ -274,6 +276,7 @@ fgraph_trace:
 #endif
 
 GLOBAL(ftrace_stub)
+	pax_force_retaddr
 	retq
 
 trace:
@@ -286,12 +289,13 @@ trace:
 	 * ip and parent ip are used and the list function is called when
 	 * function tracing is enabled.
 	 */
+	pax_force_fptr ftrace_trace_function
 	call   *ftrace_trace_function
 
 	restore_mcount_regs
 
 	jmp fgraph_trace
-END(function_hook)
+ENDPROC(function_hook)
 #endif /* CONFIG_DYNAMIC_FTRACE */
 #endif /* CONFIG_FUNCTION_TRACER */
 
@@ -313,8 +317,9 @@ ENTRY(ftrace_graph_caller)
 
 	restore_mcount_regs
 
+	pax_force_retaddr
 	retq
-END(ftrace_graph_caller)
+ENDPROC(ftrace_graph_caller)
 
 GLOBAL(return_to_handler)
 	subq  $24, %rsp
@@ -330,5 +335,7 @@ GLOBAL(return_to_handler)
 	movq 8(%rsp), %rdx
 	movq (%rsp), %rax
 	addq $24, %rsp
+	pax_force_fptr %rdi
 	jmp *%rdi
+ENDPROC(return_to_handler)
 #endif
diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c
index 005c03e..7000fe4 100644
--- a/arch/x86/kernel/module.c
+++ b/arch/x86/kernel/module.c
@@ -75,17 +75,17 @@ static unsigned long int get_module_load_offset(void)
 }
 #endif
 
-void *module_alloc(unsigned long size)
+static inline void *__module_alloc(unsigned long size, pgprot_t prot)
 {
 	void *p;
 
-	if (PAGE_ALIGN(size) > MODULES_LEN)
+	if (!size || PAGE_ALIGN(size) > MODULES_LEN)
 		return NULL;
 
 	p = __vmalloc_node_range(size, MODULE_ALIGN,
 				    MODULES_VADDR + get_module_load_offset(),
-				    MODULES_END, GFP_KERNEL | __GFP_HIGHMEM,
-				    PAGE_KERNEL_EXEC, 0, NUMA_NO_NODE,
+				    MODULES_END, GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO,
+				    prot, 0, NUMA_NO_NODE,
 				    __builtin_return_address(0));
 	if (p && (kasan_module_alloc(p, size) < 0)) {
 		vfree(p);
@@ -95,6 +95,51 @@ void *module_alloc(unsigned long size)
 	return p;
 }
 
+void *module_alloc(unsigned long size)
+{
+
+#ifdef CONFIG_PAX_KERNEXEC
+	return __module_alloc(size, PAGE_KERNEL);
+#else
+	return __module_alloc(size, PAGE_KERNEL_EXEC);
+#endif
+
+}
+
+#ifdef CONFIG_PAX_KERNEXEC
+#ifdef CONFIG_X86_32
+void *module_alloc_exec(unsigned long size)
+{
+	struct vm_struct *area;
+
+	if (size == 0)
+		return NULL;
+
+	area = __get_vm_area(size, VM_ALLOC, (unsigned long)&MODULES_EXEC_VADDR, (unsigned long)&MODULES_EXEC_END);
+return area ? area->addr : NULL;
+}
+EXPORT_SYMBOL(module_alloc_exec);
+
+void module_memfree_exec(void *module_region)
+{
+	vunmap(module_region);
+}
+EXPORT_SYMBOL(module_memfree_exec);
+#else
+void module_memfree_exec(void *module_region)
+{
+	module_memfree(module_region);
+}
+EXPORT_SYMBOL(module_memfree_exec);
+
+void *module_alloc_exec(unsigned long size)
+{
+	return __module_alloc(size, PAGE_KERNEL_RX);
+}
+EXPORT_SYMBOL(module_alloc_exec);
+#endif
+#endif
+
 #ifdef CONFIG_X86_32
 int apply_relocate(Elf32_Shdr *sechdrs,
 		   const char *strtab,
@@ -105,14 +150,16 @@ int apply_relocate(Elf32_Shdr *sechdrs,
 	unsigned int i;
 	Elf32_Rel *rel = (void *)sechdrs[relsec].sh_addr;
 	Elf32_Sym *sym;
-	uint32_t *location;
+	uint32_t *plocation, location;
 
 	DEBUGP("Applying relocate section %u to %u\n",
 	       relsec, sechdrs[relsec].sh_info);
 	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
 		/* This is where to make the change */
-		location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
-			+ rel[i].r_offset;
+		plocation = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr + rel[i].r_offset;
+		location = (uint32_t)plocation;
+		if (sechdrs[sechdrs[relsec].sh_info].sh_flags & SHF_EXECINSTR)
+			plocation = (uint32_t *)ktla_ktva((unsigned long)plocation);
 		/* This is the symbol it is referring to.  Note that all
 		   undefined symbols have been resolved.  */
 		sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
@@ -121,11 +168,15 @@ int apply_relocate(Elf32_Shdr *sechdrs,
 		switch (ELF32_R_TYPE(rel[i].r_info)) {
 		case R_386_32:
 			/* We add the value into the location given */
-			*location += sym->st_value;
+			pax_open_kernel();
+			*plocation += sym->st_value;
+			pax_close_kernel();
 			break;
 		case R_386_PC32:
 			/* Add the value, subtract its position */
-			*location += sym->st_value - (uint32_t)location;
+			pax_open_kernel();
+			*plocation += sym->st_value - location;
+			pax_close_kernel();
 			break;
 		default:
 			pr_err("%s: Unknown relocation: %u\n",
@@ -170,21 +221,30 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
 		case R_X86_64_NONE:
 			break;
 		case R_X86_64_64:
+			pax_open_kernel();
 			*(u64 *)loc = val;
+			pax_close_kernel();
 			break;
 		case R_X86_64_32:
+			pax_open_kernel();
 			*(u32 *)loc = val;
+			pax_close_kernel();
 			if (val != *(u32 *)loc)
 				goto overflow;
 			break;
 		case R_X86_64_32S:
+			pax_open_kernel();
 			*(s32 *)loc = val;
+			pax_close_kernel();
 			if ((s64)val != *(s32 *)loc)
 				goto overflow;
 			break;
 		case R_X86_64_PC32:
 			val -= (u64)loc;
+			pax_open_kernel();
 			*(u32 *)loc = val;
+			pax_close_kernel();
+
 #if 0
 			if ((s64)val != *(s32 *)loc)
 				goto overflow;
diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c
index 7f3550a..e535783 100644
--- a/arch/x86/kernel/msr.c
+++ b/arch/x86/kernel/msr.c
@@ -39,6 +39,7 @@
 #include <linux/notifier.h>
 #include <linux/uaccess.h>
 #include <linux/gfp.h>
+#include <linux/grsecurity.h>
 
 #include <asm/cpufeature.h>
 #include <asm/msr.h>
@@ -83,6 +84,13 @@ static ssize_t msr_write(struct file *file, const char __user *buf,
 	int err = 0;
 	ssize_t bytes = 0;
 
+#ifdef CONFIG_GRKERNSEC_KMEM
+	if (reg != MSR_IA32_ENERGY_PERF_BIAS) {
+		gr_handle_msr_write();
+		return -EPERM;
+	}
+#endif
+
 	if (count % 8)
 		return -EINVAL;	/* Invalid chunk size */
 
@@ -130,6 +138,10 @@ static long msr_ioctl(struct file *file, unsigned int ioc, unsigned long arg)
 			err = -EBADF;
 			break;
 		}
+#ifdef CONFIG_GRKERNSEC_KMEM
+		gr_handle_msr_write();
+		return -EPERM;
+#endif
 		if (copy_from_user(&regs, uregs, sizeof regs)) {
 			err = -EFAULT;
 			break;
@@ -213,7 +225,7 @@ static int msr_class_cpu_callback(struct notifier_block *nfb,
 	return notifier_from_errno(err);
 }
 
-static struct notifier_block __refdata msr_class_cpu_notifier = {
+static struct notifier_block msr_class_cpu_notifier = {
 	.notifier_call = msr_class_cpu_callback,
 };
 
diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c
index 04b132a..95ed204 100644
--- a/arch/x86/kernel/nmi.c
+++ b/arch/x86/kernel/nmi.c
@@ -100,16 +100,16 @@ fs_initcall(nmi_warning_debugfs);
 
 static void nmi_max_handler(struct irq_work *w)
 {
-	struct nmiaction *a = container_of(w, struct nmiaction, irq_work);
+	struct nmiwork *n = container_of(w, struct nmiwork, irq_work);
 	int remainder_ns, decimal_msecs;
-	u64 whole_msecs = ACCESS_ONCE(a->max_duration);
+	u64 whole_msecs = ACCESS_ONCE(n->max_duration);
 
 	remainder_ns = do_div(whole_msecs, (1000 * 1000));
 	decimal_msecs = remainder_ns / 1000;
 
 	printk_ratelimited(KERN_INFO
 		"INFO: NMI handler (%ps) took too long to run: %lld.%03d msecs\n",
-		a->handler, whole_msecs, decimal_msecs);
+		n->action->handler, whole_msecs, decimal_msecs);
 }
 
 static int nmi_handle(unsigned int type, struct pt_regs *regs)
@@ -136,11 +136,11 @@ static int nmi_handle(unsigned int type, struct pt_regs *regs)
 		delta = sched_clock() - delta;
 		trace_nmi_handler(a->handler, (int)delta, thishandled);
 
-		if (delta < nmi_longest_ns || delta < a->max_duration)
+		if (delta < nmi_longest_ns || delta < a->work->max_duration)
 			continue;
 
-		a->max_duration = delta;
-		irq_work_queue(&a->irq_work);
+		a->work->max_duration = delta;
+		irq_work_queue(&a->work->irq_work);
 	}
 
 	rcu_read_unlock();
@@ -150,7 +150,7 @@ static int nmi_handle(unsigned int type, struct pt_regs *regs)
 }
 NOKPROBE_SYMBOL(nmi_handle);
 
-int __register_nmi_handler(unsigned int type, struct nmiaction *action)
+int __register_nmi_handler(unsigned int type, const struct nmiaction *action)
 {
 	struct nmi_desc *desc = nmi_to_desc(type);
 	unsigned long flags;
@@ -158,7 +158,8 @@ int __register_nmi_handler(unsigned int type, struct nmiaction *action)
 	if (!action->handler)
 		return -EINVAL;
 
-	init_irq_work(&action->irq_work, nmi_max_handler);
+	action->work->action = action;
+	init_irq_work(&action->work->irq_work, nmi_max_handler);
 
 	spin_lock_irqsave(&desc->lock, flags);
 
@@ -176,9 +177,9 @@ int __register_nmi_handler(unsigned int type, struct nmiaction *action)
 	 * event confuses some handlers (kdump uses this flag)
 	 */
 	if (action->flags & NMI_FLAG_FIRST)
-		list_add_rcu(&action->list, &desc->head);
+		pax_list_add_rcu((struct list_head *)&action->list, &desc->head);
 	else
-		list_add_tail_rcu(&action->list, &desc->head);
+		pax_list_add_tail_rcu((struct list_head *)&action->list, &desc->head);
 	
 	spin_unlock_irqrestore(&desc->lock, flags);
 	return 0;
@@ -201,7 +202,7 @@ void unregister_nmi_handler(unsigned int type, const char *name)
 		if (!strcmp(n->name, name)) {
 			WARN(in_nmi(),
 				"Trying to free NMI (%s) from NMI context!\n", n->name);
-			list_del_rcu(&n->list);
+			pax_list_del_rcu((struct list_head *)&n->list);
 			break;
 		}
 	}
@@ -502,6 +503,17 @@ static DEFINE_PER_CPU(int, update_debug_stack);
 dotraplinkage notrace void
 do_nmi(struct pt_regs *regs, long error_code)
 {
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+	if (!user_mode(regs)) {
+		unsigned long cs = regs->cs & 0xFFFF;
+		unsigned long ip = ktva_ktla(regs->ip);
+
+		if ((cs == __KERNEL_CS || cs == __KERNEXEC_KERNEL_CS) && ip <= (unsigned long)_etext)
+			regs->ip = ip;
+	}
+#endif
+
 	if (this_cpu_read(nmi_state) != NMI_NOT_RUNNING) {
 		this_cpu_write(nmi_state, NMI_LATCHED);
 		return;
diff --git a/arch/x86/kernel/nmi_selftest.c b/arch/x86/kernel/nmi_selftest.c
index 6d9582e..f746287 100644
--- a/arch/x86/kernel/nmi_selftest.c
+++ b/arch/x86/kernel/nmi_selftest.c
@@ -43,7 +43,7 @@ static void __init init_nmi_testsuite(void)
 {
 	/* trap all the unknown NMIs we may generate */
 	register_nmi_handler(NMI_UNKNOWN, nmi_unk_cb, 0, "nmi_selftest_unk",
-			__initdata);
+			__initconst);
 }
 
 static void __init cleanup_nmi_testsuite(void)
@@ -66,7 +66,7 @@ static void __init test_nmi_ipi(struct cpumask *mask)
 	unsigned long timeout;
 
 	if (register_nmi_handler(NMI_LOCAL, test_nmi_ipi_callback,
-				 NMI_FLAG_FIRST, "nmi_selftest", __initdata)) {
+				 NMI_FLAG_FIRST, "nmi_selftest", __initconst)) {
 		nmi_fail = FAILURE;
 		return;
 	}
diff --git a/arch/x86/kernel/paravirt-spinlocks.c b/arch/x86/kernel/paravirt-spinlocks.c
index 33ee3e0..6d23e5c 100644
--- a/arch/x86/kernel/paravirt-spinlocks.c
+++ b/arch/x86/kernel/paravirt-spinlocks.c
@@ -23,16 +23,32 @@ bool pv_is_native_spin_unlock(void)
 }
 #endif
 
-struct pv_lock_ops pv_lock_ops = {
+#ifdef CONFIG_SMP
+#ifdef CONFIG_QUEUED_SPINLOCKS
+static void native_wait(u8 *ptr, u8 val)
+{
+}
+
+static void native_kick(int cpu)
+{
+}
+#else /* !CONFIG_QUEUED_SPINLOCKS */
+static void native_unlock_kick(struct arch_spinlock *lock, __ticket_t ticket)
+{
+}
+#endif /* !CONFIG_QUEUED_SPINLOCKS */
+#endif /* SMP */
+
+struct pv_lock_ops pv_lock_ops __read_only = {
 #ifdef CONFIG_SMP
 #ifdef CONFIG_QUEUED_SPINLOCKS
 	.queued_spin_lock_slowpath = native_queued_spin_lock_slowpath,
 	.queued_spin_unlock = PV_CALLEE_SAVE(__native_queued_spin_unlock),
-	.wait = paravirt_nop,
-	.kick = paravirt_nop,
+	.wait = native_wait,
+	.kick = native_kick,
 #else /* !CONFIG_QUEUED_SPINLOCKS */
 	.lock_spinning = __PV_IS_CALLEE_SAVE(paravirt_nop),
-	.unlock_kick = paravirt_nop,
+	.unlock_kick = native_unlock_kick,
 #endif /* !CONFIG_QUEUED_SPINLOCKS */
 #endif /* SMP */
 };
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index f08ac28..4599189 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -64,6 +64,9 @@ u64 _paravirt_ident_64(u64 x)
 {
 	return x;
 }
+#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE)
+PV_CALLEE_SAVE_REGS_THUNK(_paravirt_ident_64);
+#endif
 
 void __init default_banner(void)
 {
@@ -139,15 +142,19 @@ unsigned paravirt_patch_default(u8 type, u16 clobbers, void *insnbuf,
 
 	if (opfunc == NULL)
 		/* If there's no function, patch it with a ud2a (BUG) */
-		ret = paravirt_patch_insns(insnbuf, len, ud2a, ud2a+sizeof(ud2a));
-	else if (opfunc == _paravirt_nop)
+		ret = paravirt_patch_insns(insnbuf, len, (const char *)ktva_ktla((unsigned long)ud2a), ud2a+sizeof(ud2a));
+	else if (opfunc == (void *)_paravirt_nop)
 		ret = 0;
 
 	/* identity functions just return their single argument */
-	else if (opfunc == _paravirt_ident_32)
+	else if (opfunc == (void *)_paravirt_ident_32)
 		ret = paravirt_patch_ident_32(insnbuf, len);
-	else if (opfunc == _paravirt_ident_64)
+	else if (opfunc == (void *)_paravirt_ident_64)
 		ret = paravirt_patch_ident_64(insnbuf, len);
+#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE)
+	else if (opfunc == (void *)__raw_callee_save__paravirt_ident_64)
+		ret = paravirt_patch_ident_64(insnbuf, len);
+#endif
 
 	else if (type == PARAVIRT_PATCH(pv_cpu_ops.iret) ||
 		 type == PARAVIRT_PATCH(pv_cpu_ops.usergs_sysret64))
@@ -170,7 +177,7 @@ unsigned paravirt_patch_insns(void *insnbuf, unsigned len,
 	if (insn_len > len || start == NULL)
 		insn_len = len;
 	else
-		memcpy(insnbuf, start, insn_len);
+		memcpy(insnbuf, (const char *)ktla_ktva((unsigned long)start), insn_len);
 
 	return insn_len;
 }
@@ -292,7 +299,7 @@ enum paravirt_lazy_mode paravirt_get_lazy_mode(void)
 	return this_cpu_read(paravirt_lazy_mode);
 }
 
-struct pv_info pv_info = {
+struct pv_info pv_info __read_only = {
 	.name = "bare hardware",
 	.paravirt_enabled = 0,
 	.kernel_rpl = 0,
@@ -303,16 +310,16 @@ struct pv_info pv_info = {
 #endif
 };
 
-struct pv_init_ops pv_init_ops = {
+struct pv_init_ops pv_init_ops __read_only = {
 	.patch = native_patch,
 };
 
-struct pv_time_ops pv_time_ops = {
+struct pv_time_ops pv_time_ops __read_only = {
 	.sched_clock = native_sched_clock,
 	.steal_clock = native_steal_clock,
 };
 
-__visible struct pv_irq_ops pv_irq_ops = {
+__visible struct pv_irq_ops pv_irq_ops __read_only = {
 	.save_fl = __PV_IS_CALLEE_SAVE(native_save_fl),
 	.restore_fl = __PV_IS_CALLEE_SAVE(native_restore_fl),
 	.irq_disable = __PV_IS_CALLEE_SAVE(native_irq_disable),
@@ -324,7 +331,23 @@ __visible struct pv_irq_ops pv_irq_ops = {
 #endif
 };
 
-__visible struct pv_cpu_ops pv_cpu_ops = {
+static void native_alloc_ldt(struct desc_struct *ldt, unsigned entries)
+{
+}
+
+static void native_free_ldt(struct desc_struct *ldt, unsigned entries)
+{
+}
+
+static void native_start_context_switch(struct task_struct *prev)
+{
+}
+
+static void native_end_context_switch(struct task_struct *next)
+{
+}
+
+__visible struct pv_cpu_ops pv_cpu_ops __read_only = {
 	.cpuid = native_cpuid,
 	.get_debugreg = native_get_debugreg,
 	.set_debugreg = native_set_debugreg,
@@ -356,8 +379,8 @@ __visible struct pv_cpu_ops pv_cpu_ops = {
 	.write_gdt_entry = native_write_gdt_entry,
 	.write_idt_entry = native_write_idt_entry,
 
-	.alloc_ldt = paravirt_nop,
-	.free_ldt = paravirt_nop,
+	.alloc_ldt = native_alloc_ldt,
+	.free_ldt = native_free_ldt,
 
 	.load_sp0 = native_load_sp0,
 
@@ -370,8 +393,8 @@ __visible struct pv_cpu_ops pv_cpu_ops = {
 	.set_iopl_mask = native_set_iopl_mask,
 	.io_delay = native_io_delay,
 
-	.start_context_switch = paravirt_nop,
-	.end_context_switch = paravirt_nop,
+	.start_context_switch = native_start_context_switch,
+	.end_context_switch = native_end_context_switch,
 };
 
 /* At this point, native_get/set_debugreg has real function entries */
@@ -379,15 +402,64 @@ NOKPROBE_SYMBOL(native_get_debugreg);
 NOKPROBE_SYMBOL(native_set_debugreg);
 NOKPROBE_SYMBOL(native_load_idt);
 
-#if defined(CONFIG_X86_32) && !defined(CONFIG_X86_PAE)
+#ifdef CONFIG_X86_32
+#ifdef CONFIG_X86_PAE
+/* 64-bit pagetable entries */
+#define PTE_IDENT	PV_CALLEE_SAVE(_paravirt_ident_64)
+#else
 /* 32-bit pagetable entries */
 #define PTE_IDENT	__PV_IS_CALLEE_SAVE(_paravirt_ident_32)
+#endif
 #else
 /* 64-bit pagetable entries */
 #define PTE_IDENT	__PV_IS_CALLEE_SAVE(_paravirt_ident_64)
 #endif
 
-struct pv_mmu_ops pv_mmu_ops = {
+static void native_pgd_free(struct mm_struct *mm, pgd_t *pgd)
+{
+}
+
+static void native_alloc_pte(struct mm_struct *mm, unsigned long pfn)
+{
+}
+
+static void native_alloc_pmd(struct mm_struct *mm, unsigned long pfn)
+{
+}
+
+static void native_alloc_pud(struct mm_struct *mm, unsigned long pfn)
+{
+}
+
+static void native_release_pte(unsigned long pfn)
+{
+}
+
+static void native_release_pmd(unsigned long pfn)
+{
+}
+
+static void native_release_pud(unsigned long pfn)
+{
+}
+
+static void native_pte_update(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+{
+}
+
+static void native_dup_mmap(struct mm_struct *oldmm, struct mm_struct *mm)
+{
+}
+
+static void native_exit_mmap(struct mm_struct *mm)
+{
+}
+
+static void native_activate_mm(struct mm_struct *prev, struct mm_struct *next)
+{
+}
+
+struct pv_mmu_ops pv_mmu_ops __read_only = {
 
 	.read_cr2 = native_read_cr2,
 	.write_cr2 = native_write_cr2,
@@ -400,20 +472,20 @@ struct pv_mmu_ops pv_mmu_ops = {
 	.flush_tlb_others = native_flush_tlb_others,
 
 	.pgd_alloc = __paravirt_pgd_alloc,
-	.pgd_free = paravirt_nop,
+	.pgd_free = native_pgd_free,
 
-	.alloc_pte = paravirt_nop,
-	.alloc_pmd = paravirt_nop,
-	.alloc_pud = paravirt_nop,
-	.release_pte = paravirt_nop,
-	.release_pmd = paravirt_nop,
-	.release_pud = paravirt_nop,
+	.alloc_pte = native_alloc_pte,
+	.alloc_pmd = native_alloc_pmd,
+	.alloc_pud = native_alloc_pud,
+	.release_pte = native_release_pte,
+	.release_pmd = native_release_pmd,
+	.release_pud = native_release_pud,
 
 	.set_pte = native_set_pte,
 	.set_pte_at = native_set_pte_at,
 	.set_pmd = native_set_pmd,
 	.set_pmd_at = native_set_pmd_at,
-	.pte_update = paravirt_nop,
+	.pte_update = native_pte_update,
 
 	.ptep_modify_prot_start = __ptep_modify_prot_start,
 	.ptep_modify_prot_commit = __ptep_modify_prot_commit,
@@ -434,6 +506,7 @@ struct pv_mmu_ops pv_mmu_ops = {
 	.make_pud = PTE_IDENT,
 
 	.set_pgd = native_set_pgd,
+	.set_pgd_batched = native_set_pgd_batched,
 #endif
 #endif /* CONFIG_PGTABLE_LEVELS >= 3 */
 
@@ -443,9 +516,9 @@ struct pv_mmu_ops pv_mmu_ops = {
 	.make_pte = PTE_IDENT,
 	.make_pgd = PTE_IDENT,
 
-	.dup_mmap = paravirt_nop,
-	.exit_mmap = paravirt_nop,
-	.activate_mm = paravirt_nop,
+	.dup_mmap = native_dup_mmap,
+	.exit_mmap = native_exit_mmap,
+	.activate_mm = native_activate_mm,
 
 	.lazy_mode = {
 		.enter = paravirt_nop,
@@ -454,6 +527,12 @@ struct pv_mmu_ops pv_mmu_ops = {
 	},
 
 	.set_fixmap = native_set_fixmap,
+
+#ifdef CONFIG_PAX_KERNEXEC
+	.pax_open_kernel = native_pax_open_kernel,
+	.pax_close_kernel = native_pax_close_kernel,
+#endif
+
 };
 
 EXPORT_SYMBOL_GPL(pv_time_ops);
diff --git a/arch/x86/kernel/paravirt_patch_64.c b/arch/x86/kernel/paravirt_patch_64.c
index e70087a..b083377 100644
--- a/arch/x86/kernel/paravirt_patch_64.c
+++ b/arch/x86/kernel/paravirt_patch_64.c
@@ -9,7 +9,11 @@ DEF_NATIVE(pv_irq_ops, save_fl, "pushfq; popq %rax");
 DEF_NATIVE(pv_mmu_ops, read_cr2, "movq %cr2, %rax");
 DEF_NATIVE(pv_mmu_ops, read_cr3, "movq %cr3, %rax");
 DEF_NATIVE(pv_mmu_ops, write_cr3, "movq %rdi, %cr3");
+
+#ifndef CONFIG_PAX_MEMORY_UDEREF
 DEF_NATIVE(pv_mmu_ops, flush_tlb_single, "invlpg (%rdi)");
+#endif
+
 DEF_NATIVE(pv_cpu_ops, clts, "clts");
 DEF_NATIVE(pv_cpu_ops, wbinvd, "wbinvd");
 
@@ -59,7 +63,11 @@ unsigned native_patch(u8 type, u16 clobbers, void *ibuf,
 		PATCH_SITE(pv_mmu_ops, read_cr3);
 		PATCH_SITE(pv_mmu_ops, write_cr3);
 		PATCH_SITE(pv_cpu_ops, clts);
+
+#ifndef CONFIG_PAX_MEMORY_UDEREF
 		PATCH_SITE(pv_mmu_ops, flush_tlb_single);
+#endif
+
 		PATCH_SITE(pv_cpu_ops, wbinvd);
 #if defined(CONFIG_PARAVIRT_SPINLOCKS) && defined(CONFIG_QUEUED_SPINLOCKS)
 		case PARAVIRT_PATCH(pv_lock_ops.queued_spin_unlock):
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index 833b1d3..f839e8b 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -1347,7 +1347,7 @@ static void __init get_tce_space_from_tar(void)
 			tce_space = be64_to_cpu(readq(target));
 			tce_space = tce_space & TAR_SW_BITS;
 
-			tce_space = tce_space & (~specified_table_size);
+			tce_space = tce_space & (~(unsigned long)specified_table_size);
 			info->tce_space = (u64 *)__va(tce_space);
 		}
 	}
diff --git a/arch/x86/kernel/pci-iommu_table.c b/arch/x86/kernel/pci-iommu_table.c
index 35ccf75..7a15747 100644
--- a/arch/x86/kernel/pci-iommu_table.c
+++ b/arch/x86/kernel/pci-iommu_table.c
@@ -2,7 +2,7 @@
 #include <asm/iommu_table.h>
 #include <linux/string.h>
 #include <linux/kallsyms.h>
-
+#include <linux/sched.h>
 
 #define DEBUG 1
 
diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c
index 7c577a1..3557b10 100644
--- a/arch/x86/kernel/pci-swiotlb.c
+++ b/arch/x86/kernel/pci-swiotlb.c
@@ -40,7 +40,7 @@ void x86_swiotlb_free_coherent(struct device *dev, size_t size,
 				      struct dma_attrs *attrs)
 {
 	if (is_swiotlb_buffer(dma_to_phys(dev, dma_addr)))
-		swiotlb_free_coherent(dev, size, vaddr, dma_addr);
+		swiotlb_free_coherent(dev, size, vaddr, dma_addr, attrs);
 	else
 		dma_generic_free_coherent(dev, size, vaddr, dma_addr, attrs);
 }
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 2915d54..8e43324 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -15,6 +15,7 @@
 #include <linux/dmi.h>
 #include <linux/utsname.h>
 #include <linux/stackprotector.h>
+#include <linux/kthread.h>
 #include <linux/tick.h>
 #include <linux/cpuidle.h>
 #include <trace/events/power.h>
@@ -39,7 +40,8 @@
  * section. Since TSS's are completely CPU-local, we want them
  * on exact cacheline boundaries, to eliminate cacheline ping-pong.
  */
-__visible DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, cpu_tss) = {
+struct tss_struct cpu_tss[NR_CPUS] __visible ____cacheline_internodealigned_in_smp = {
+	[0 ... NR_CPUS-1] = {
 	.x86_tss = {
 		.sp0 = TOP_OF_INIT_STACK,
 #ifdef CONFIG_X86_32
@@ -60,6 +62,7 @@ __visible DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, cpu_tss) = {
 #ifdef CONFIG_X86_32
 	.SYSENTER_stack_canary	= STACK_END_MAGIC,
 #endif
+}
 };
 EXPORT_PER_CPU_SYMBOL(cpu_tss);
 
@@ -80,13 +83,26 @@ void idle_notifier_unregister(struct notifier_block *n)
 EXPORT_SYMBOL_GPL(idle_notifier_unregister);
 #endif
 
+struct kmem_cache *fpregs_state_cachep;
+EXPORT_SYMBOL(fpregs_state_cachep);
+
+void __init arch_task_cache_init(void)
+{
+	/* create a slab on which task_structs can be allocated */
+	fpregs_state_cachep =
+		kmem_cache_create("fpregs_state", xstate_size,
+			ARCH_MIN_TASKALIGN, SLAB_PANIC | SLAB_NOTRACK | SLAB_USERCOPY, NULL);
+}
+
 /*
  * this gets called so that we can store lazy state into memory and copy the
  * current task into the new thread.
  */
 int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src)
 {
-	memcpy(dst, src, arch_task_struct_size);
+	*dst = *src;
+	dst->thread.fpu.state = kmem_cache_alloc_node(fpregs_state_cachep, GFP_KERNEL, tsk_fork_get_node(src));
+	memcpy(dst->thread.fpu.state, src->thread.fpu.state, xstate_size);
 #ifdef CONFIG_VM86
 	dst->thread.vm86 = NULL;
 #endif
@@ -94,6 +110,12 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src)
 	return fpu__copy(&dst->thread.fpu, &src->thread.fpu);
 }
 
+void arch_release_task_struct(struct task_struct *tsk)
+{
+	kmem_cache_free(fpregs_state_cachep, tsk->thread.fpu.state);
+	tsk->thread.fpu.state = NULL;
+}
+
 /*
  * Free current thread data structures etc..
  */
@@ -105,7 +127,7 @@ void exit_thread(void)
 	struct fpu *fpu = &t->fpu;
 
 	if (bp) {
-		struct tss_struct *tss = &per_cpu(cpu_tss, get_cpu());
+		struct tss_struct *tss = cpu_tss + get_cpu();
 
 		t->io_bitmap_ptr = NULL;
 		clear_thread_flag(TIF_IO_BITMAP);
@@ -127,6 +149,9 @@ void flush_thread(void)
 {
 	struct task_struct *tsk = current;
 
+#if defined(CONFIG_X86_32) && !defined(CONFIG_CC_STACKPROTECTOR) && !defined(CONFIG_PAX_MEMORY_UDEREF)
+	loadsegment(gs, 0);
+#endif
 	flush_ptrace_hw_breakpoint(tsk);
 	memset(tsk->thread.tls_array, 0, sizeof(tsk->thread.tls_array));
 
@@ -268,7 +293,7 @@ static void __exit_idle(void)
 void exit_idle(void)
 {
 	/* idle loop has pid 0 */
-	if (current->pid)
+	if (task_pid_nr(current))
 		return;
 	__exit_idle();
 }
@@ -321,7 +346,7 @@ bool xen_set_default_idle(void)
 	return ret;
 }
 #endif
-void stop_this_cpu(void *dummy)
+__noreturn void stop_this_cpu(void *dummy)
 {
 	local_irq_disable();
 	/*
@@ -499,13 +524,6 @@ static int __init idle_setup(char *str)
 }
 early_param("idle", idle_setup);
 
-unsigned long arch_align_stack(unsigned long sp)
-{
-	if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
-		sp -= get_random_int() % 8192;
-	return sp & ~0xf;
-}
-
 unsigned long arch_randomize_brk(struct mm_struct *mm)
 {
 	unsigned long range_end = mm->brk + 0x02000000;
@@ -537,9 +555,7 @@ unsigned long get_wchan(struct task_struct *p)
 	 * PADDING
 	 * ----------- top = topmax - TOP_OF_KERNEL_STACK_PADDING
 	 * stack
-	 * ----------- bottom = start + sizeof(thread_info)
-	 * thread_info
-	 * ----------- start
+	 * ----------- bottom = start
 	 *
 	 * The tasks stack pointer points at the location where the
 	 * framepointer is stored. The data on the stack is:
@@ -550,7 +566,7 @@ unsigned long get_wchan(struct task_struct *p)
 	 */
 	top = start + THREAD_SIZE - TOP_OF_KERNEL_STACK_PADDING;
 	top -= 2 * sizeof(unsigned long);
-	bottom = start + sizeof(struct thread_info);
+	bottom = start;
 
 	sp = READ_ONCE(p->thread.sp);
 	if (sp < bottom || sp > top)
@@ -567,3 +583,35 @@ unsigned long get_wchan(struct task_struct *p)
 	} while (count++ < 16 && p->state != TASK_RUNNING);
 	return 0;
 }
+
+#ifdef CONFIG_PAX_RANDKSTACK
+void pax_randomize_kstack(struct pt_regs *regs)
+{
+	struct thread_struct *thread = &current->thread;
+	unsigned long time;
+
+	if (!randomize_va_space)
+		return;
+
+	if (v8086_mode(regs))
+		return;
+
+	time = rdtsc();
+
+	/* P4 seems to return a 0 LSB, ignore it */
+#ifdef CONFIG_MPENTIUM4
+	time &= 0x3EUL;
+	time <<= 2;
+#elif defined(CONFIG_X86_64)
+	time &= 0xFUL;
+	time <<= 4;
+#else
+	time &= 0x1FUL;
+	time <<= 3;
+#endif
+
+	thread->sp0 ^= time;
+	load_sp0(cpu_tss + smp_processor_id(), thread);
+	this_cpu_write(cpu_current_top_of_stack, thread->sp0);
+}
+#endif
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 9f95091..6885108 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -64,6 +64,7 @@ asmlinkage void ret_from_kernel_thread(void) __asm__("ret_from_kernel_thread");
 unsigned long thread_saved_pc(struct task_struct *tsk)
 {
 	return ((unsigned long *)tsk->thread.sp)[3];
+//XXX	return tsk->thread.eip;
 }
 
 void __show_regs(struct pt_regs *regs, int all)
@@ -76,16 +77,15 @@ void __show_regs(struct pt_regs *regs, int all)
 	if (user_mode(regs)) {
 		sp = regs->sp;
 		ss = regs->ss & 0xffff;
-		gs = get_user_gs(regs);
 	} else {
 		sp = kernel_stack_pointer(regs);
 		savesegment(ss, ss);
-		savesegment(gs, gs);
 	}
+	gs = get_user_gs(regs);
 
 	printk(KERN_DEFAULT "EIP: %04x:[<%08lx>] EFLAGS: %08lx CPU: %d\n",
 			(u16)regs->cs, regs->ip, regs->flags,
-			smp_processor_id());
+			raw_smp_processor_id());
 	print_symbol("EIP is at %s\n", regs->ip);
 
 	printk(KERN_DEFAULT "EAX: %08lx EBX: %08lx ECX: %08lx EDX: %08lx\n",
@@ -132,21 +132,22 @@ void release_thread(struct task_struct *dead_task)
 int copy_thread_tls(unsigned long clone_flags, unsigned long sp,
 	unsigned long arg, struct task_struct *p, unsigned long tls)
 {
-	struct pt_regs *childregs = task_pt_regs(p);
+	struct pt_regs *childregs = task_stack_page(p) + THREAD_SIZE - sizeof(struct pt_regs) - 8;
 	struct task_struct *tsk;
 	int err;
 
 	p->thread.sp = (unsigned long) childregs;
 	p->thread.sp0 = (unsigned long) (childregs+1);
+	p->tinfo.lowest_stack = (unsigned long)task_stack_page(p) + 2 * sizeof(unsigned long);
 	memset(p->thread.ptrace_bps, 0, sizeof(p->thread.ptrace_bps));
 
 	if (unlikely(p->flags & PF_KTHREAD)) {
 		/* kernel thread */
 		memset(childregs, 0, sizeof(struct pt_regs));
 		p->thread.ip = (unsigned long) ret_from_kernel_thread;
-		task_user_gs(p) = __KERNEL_STACK_CANARY;
-		childregs->ds = __USER_DS;
-		childregs->es = __USER_DS;
+		savesegment(gs, childregs->gs);
+		childregs->ds = __KERNEL_DS;
+		childregs->es = __KERNEL_DS;
 		childregs->fs = __KERNEL_PERCPU;
 		childregs->bx = sp;	/* function */
 		childregs->bp = arg;
@@ -246,7 +247,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	struct fpu *prev_fpu = &prev->fpu;
 	struct fpu *next_fpu = &next->fpu;
 	int cpu = smp_processor_id();
-	struct tss_struct *tss = &per_cpu(cpu_tss, cpu);
+	struct tss_struct *tss = cpu_tss + cpu;
 	fpu_switch_t fpu_switch;
 
 	/* never put a printk in __switch_to... printk() calls wake_up*() indirectly */
@@ -265,6 +266,10 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	 */
 	lazy_save_gs(prev->gs);
 
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	__set_fs(task_thread_info(next_p)->addr_limit);
+#endif
+
 	/*
 	 * Load the per-thread Thread-Local Storage descriptor.
 	 */
@@ -300,9 +305,9 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	 * current_thread_info().
 	 */
 	load_sp0(tss, next);
-	this_cpu_write(cpu_current_top_of_stack,
-		       (unsigned long)task_stack_page(next_p) +
-		       THREAD_SIZE);
+	this_cpu_write(current_task, next_p);
+	this_cpu_write(current_tinfo, &next_p->tinfo);
+	this_cpu_write(cpu_current_top_of_stack, next->sp0);
 
 	/*
 	 * Restore %gs if needed (which is common)
@@ -312,7 +317,5 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 
 	switch_fpu_finish(next_fpu, fpu_switch);
 
-	this_cpu_write(current_task, next_p);
-
 	return prev_p;
 }
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 6cbab31..2fd4ca3 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -162,9 +162,10 @@ int copy_thread_tls(unsigned long clone_flags, unsigned long sp,
 	struct pt_regs *childregs;
 	struct task_struct *me = current;
 
-	p->thread.sp0 = (unsigned long)task_stack_page(p) + THREAD_SIZE;
+	p->thread.sp0 = (unsigned long)task_stack_page(p) + THREAD_SIZE - 16;
 	childregs = task_pt_regs(p);
 	p->thread.sp = (unsigned long) childregs;
+	p->tinfo.lowest_stack = (unsigned long)task_stack_page(p) + 2 * sizeof(unsigned long);
 	set_tsk_thread_flag(p, TIF_FORK);
 	p->thread.io_bitmap_ptr = NULL;
 
@@ -174,6 +175,8 @@ int copy_thread_tls(unsigned long clone_flags, unsigned long sp,
 	p->thread.fs = p->thread.fsindex ? 0 : me->thread.fs;
 	savesegment(es, p->thread.es);
 	savesegment(ds, p->thread.ds);
+	savesegment(ss, p->thread.ss);
+	BUG_ON(p->thread.ss == __UDEREF_KERNEL_DS);
 	memset(p->thread.ptrace_bps, 0, sizeof(p->thread.ptrace_bps));
 
 	if (unlikely(p->flags & PF_KTHREAD)) {
@@ -281,7 +284,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	struct fpu *prev_fpu = &prev->fpu;
 	struct fpu *next_fpu = &next->fpu;
 	int cpu = smp_processor_id();
-	struct tss_struct *tss = &per_cpu(cpu_tss, cpu);
+	struct tss_struct *tss = cpu_tss + cpu;
 	unsigned fsindex, gsindex;
 	fpu_switch_t fpu_switch;
 
@@ -332,6 +335,10 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	if (unlikely(next->ds | prev->ds))
 		loadsegment(ds, next->ds);
 
+	savesegment(ss, prev->ss);
+	if (unlikely(next->ss != prev->ss))
+		loadsegment(ss, next->ss);
+
 	/*
 	 * Switch FS and GS.
 	 *
@@ -403,10 +410,13 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	 * Switch the PDA and FPU contexts.
 	 */
 	this_cpu_write(current_task, next_p);
+	this_cpu_write(current_tinfo, &next_p->tinfo);
 
 	/* Reload esp0 and ss1.  This changes current_thread_info(). */
 	load_sp0(tss, next);
 
+	this_cpu_write(cpu_current_top_of_stack, next->sp0);
+
 	/*
 	 * Now maybe reload the debug registers and handle I/O bitmaps
 	 */
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 32e9d9c..afd5732 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -169,10 +169,10 @@ unsigned long kernel_stack_pointer(struct pt_regs *regs)
 	unsigned long sp = (unsigned long)&regs->sp;
 	u32 *prev_esp;
 
-	if (context == (sp & ~(THREAD_SIZE - 1)))
+	if (context == ((sp + 8) & ~(THREAD_SIZE - 1)))
 		return sp;
 
-	prev_esp = (u32 *)(context);
+	prev_esp = *(u32 **)(context);
 	if (prev_esp)
 		return (unsigned long)prev_esp;
 
@@ -429,6 +429,20 @@ static int putreg(struct task_struct *child,
 		if (child->thread.gs != value)
 			return do_arch_prctl(child, ARCH_SET_GS, value);
 		return 0;
+
+	case offsetof(struct user_regs_struct,ip):
+		/*
+		 * Protect against any attempt to set ip to an
+		 * impossible address.  There are dragons lurking if the
+		 * address is noncanonical.  (This explicitly allows
+		 * setting ip to TASK_SIZE_MAX, because user code can do
+		 * that all by itself by running off the end of its
+		 * address space.
+		 */
+		if (value > TASK_SIZE_MAX)
+			return -EIO;
+		break;
+
 #endif
 	}
 
@@ -565,7 +579,7 @@ static void ptrace_triggered(struct perf_event *bp,
 static unsigned long ptrace_get_dr7(struct perf_event *bp[])
 {
 	int i;
-	int dr7 = 0;
+	unsigned long dr7 = 0;
 	struct arch_hw_breakpoint *info;
 
 	for (i = 0; i < HBP_NUM; i++) {
@@ -799,7 +813,7 @@ long arch_ptrace(struct task_struct *child, long request,
 		 unsigned long addr, unsigned long data)
 {
 	int ret;
-	unsigned long __user *datap = (unsigned long __user *)data;
+	unsigned long __user *datap = (__force unsigned long __user *)data;
 
 	switch (request) {
 	/* read the word at location addr in the USER area. */
@@ -884,14 +898,14 @@ long arch_ptrace(struct task_struct *child, long request,
 		if ((int) addr < 0)
 			return -EIO;
 		ret = do_get_thread_area(child, addr,
-					(struct user_desc __user *)data);
+					(__force struct user_desc __user *) data);
 		break;
 
 	case PTRACE_SET_THREAD_AREA:
 		if ((int) addr < 0)
 			return -EIO;
 		ret = do_set_thread_area(child, addr,
-					(struct user_desc __user *)data, 0);
+					(__force struct user_desc __user *) data, 0);
 		break;
 #endif
 
@@ -1279,7 +1293,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 
 #ifdef CONFIG_X86_64
 
-static struct user_regset x86_64_regsets[] __read_mostly = {
+static user_regset_no_const x86_64_regsets[] __read_only = {
 	[REGSET_GENERAL] = {
 		.core_note_type = NT_PRSTATUS,
 		.n = sizeof(struct user_regs_struct) / sizeof(long),
@@ -1320,7 +1334,7 @@ static const struct user_regset_view user_x86_64_view = {
 #endif	/* CONFIG_X86_64 */
 
 #if defined CONFIG_X86_32 || defined CONFIG_IA32_EMULATION
-static struct user_regset x86_32_regsets[] __read_mostly = {
+static user_regset_no_const x86_32_regsets[] __read_only = {
 	[REGSET_GENERAL] = {
 		.core_note_type = NT_PRSTATUS,
 		.n = sizeof(struct user_regs_struct32) / sizeof(u32),
@@ -1373,7 +1387,7 @@ static const struct user_regset_view user_x86_32_view = {
  */
 u64 xstate_fx_sw_bytes[USER_XSTATE_FX_SW_WORDS];
 
-void update_regset_xstate_info(unsigned int size, u64 xstate_mask)
+void __init update_regset_xstate_info(unsigned int size, u64 xstate_mask)
 {
 #ifdef CONFIG_X86_64
 	x86_64_regsets[REGSET_XSTATE].n = size / sizeof(u64);
@@ -1408,7 +1422,7 @@ static void fill_sigtrap_info(struct task_struct *tsk,
 	memset(info, 0, sizeof(*info));
 	info->si_signo = SIGTRAP;
 	info->si_code = si_code;
-	info->si_addr = user_mode(regs) ? (void __user *)regs->ip : NULL;
+	info->si_addr = user_mode(regs) ? (__force void __user *)regs->ip : NULL;
 }
 
 void user_single_step_siginfo(struct task_struct *tsk,
diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c
index 99bfc02..c85b4c4 100644
--- a/arch/x86/kernel/pvclock.c
+++ b/arch/x86/kernel/pvclock.c
@@ -51,11 +51,11 @@ void pvclock_touch_watchdogs(void)
 	reset_hung_task_detector();
 }
 
-static atomic64_t last_value = ATOMIC64_INIT(0);
+static atomic64_unchecked_t last_value = ATOMIC64_INIT(0);
 
 void pvclock_resume(void)
 {
-	atomic64_set(&last_value, 0);
+	atomic64_set_unchecked(&last_value, 0);
 }
 
 u8 pvclock_read_flags(struct pvclock_vcpu_time_info *src)
@@ -105,11 +105,11 @@ cycle_t pvclock_clocksource_read(struct pvclock_vcpu_time_info *src)
 	 * updating at the same time, and one of them could be slightly behind,
 	 * making the assumption that last_value always go forward fail to hold.
 	 */
-	last = atomic64_read(&last_value);
+	last = atomic64_read_unchecked(&last_value);
 	do {
 		if (ret < last)
 			return last;
-		last = atomic64_cmpxchg(&last_value, last, ret);
+		last = atomic64_cmpxchg_unchecked(&last_value, last, ret);
 	} while (unlikely(last != ret));
 
 	return ret;
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index ab0adc0..502dfc2 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -70,6 +70,11 @@ static int __init set_bios_reboot(const struct dmi_system_id *d)
 
 void __noreturn machine_real_restart(unsigned int type)
 {
+
+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF))
+	struct desc_struct *gdt;
+#endif
+
 	local_irq_disable();
 
 	/*
@@ -97,7 +102,29 @@ void __noreturn machine_real_restart(unsigned int type)
 
 	/* Jump to the identity-mapped low memory code */
 #ifdef CONFIG_X86_32
-	asm volatile("jmpl *%0" : :
+
+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
+	gdt = get_cpu_gdt_table(smp_processor_id());
+	pax_open_kernel();
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	gdt[GDT_ENTRY_KERNEL_DS].type = 3;
+	gdt[GDT_ENTRY_KERNEL_DS].limit = 0xf;
+	loadsegment(ds, __KERNEL_DS);
+	loadsegment(es, __KERNEL_DS);
+	loadsegment(ss, __KERNEL_DS);
+#endif
+#ifdef CONFIG_PAX_KERNEXEC
+	gdt[GDT_ENTRY_KERNEL_CS].base0 = 0;
+	gdt[GDT_ENTRY_KERNEL_CS].base1 = 0;
+	gdt[GDT_ENTRY_KERNEL_CS].base2 = 0;
+	gdt[GDT_ENTRY_KERNEL_CS].limit0 = 0xffff;
+	gdt[GDT_ENTRY_KERNEL_CS].limit = 0xf;
+	gdt[GDT_ENTRY_KERNEL_CS].g = 1;
+#endif
+	pax_close_kernel();
+#endif
+
+	asm volatile("ljmpl *%0" : :
 		     "rm" (real_mode_header->machine_real_restart_asm),
 		     "a" (type));
 #else
@@ -137,7 +164,7 @@ static int __init set_kbd_reboot(const struct dmi_system_id *d)
 /*
  * This is a single dmi_table handling all reboot quirks.
  */
-static struct dmi_system_id __initdata reboot_dmi_table[] = {
+static const struct dmi_system_id __initconst reboot_dmi_table[] = {
 
 	/* Acer */
 	{	/* Handle reboot issue on Acer Aspire one */
@@ -519,7 +546,7 @@ void __attribute__((weak)) mach_reboot_fixups(void)
  * This means that this function can never return, it can misbehave
  * by not rebooting properly and hanging.
  */
-static void native_machine_emergency_restart(void)
+static void __noreturn native_machine_emergency_restart(void)
 {
 	int i;
 	int attempt = 0;
@@ -639,13 +666,13 @@ void native_machine_shutdown(void)
 #endif
 }
 
-static void __machine_emergency_restart(int emergency)
+static void __noreturn __machine_emergency_restart(int emergency)
 {
 	reboot_emergency = emergency;
 	machine_ops.emergency_restart();
 }
 
-static void native_machine_restart(char *__unused)
+static void __noreturn native_machine_restart(char *__unused)
 {
 	pr_notice("machine restart\n");
 
@@ -654,7 +681,7 @@ static void native_machine_restart(char *__unused)
 	__machine_emergency_restart(0);
 }
 
-static void native_machine_halt(void)
+static void __noreturn native_machine_halt(void)
 {
 	/* Stop other cpus and apics */
 	machine_shutdown();
@@ -664,7 +691,7 @@ static void native_machine_halt(void)
 	stop_this_cpu(NULL);
 }
 
-static void native_machine_power_off(void)
+static void __noreturn native_machine_power_off(void)
 {
 	if (pm_power_off) {
 		if (!reboot_force)
@@ -673,9 +700,10 @@ static void native_machine_power_off(void)
 	}
 	/* A fallback in case there is no PM info available */
 	tboot_shutdown(TB_SHUTDOWN_HALT);
+	unreachable();
 }
 
-struct machine_ops machine_ops = {
+struct machine_ops machine_ops __read_only = {
 	.power_off = native_machine_power_off,
 	.shutdown = native_machine_shutdown,
 	.emergency_restart = native_machine_emergency_restart,
diff --git a/arch/x86/kernel/reboot_fixups_32.c b/arch/x86/kernel/reboot_fixups_32.c
index c8e41e9..64049ef 100644
--- a/arch/x86/kernel/reboot_fixups_32.c
+++ b/arch/x86/kernel/reboot_fixups_32.c
@@ -57,7 +57,7 @@ struct device_fixup {
 	unsigned int vendor;
 	unsigned int device;
 	void (*reboot_fixup)(struct pci_dev *);
-};
+} __do_const;
 
 /*
  * PCI ids solely used for fixups_table go here
diff --git a/arch/x86/kernel/relocate_kernel_64.S b/arch/x86/kernel/relocate_kernel_64.S
index 98111b3..73ca125 100644
--- a/arch/x86/kernel/relocate_kernel_64.S
+++ b/arch/x86/kernel/relocate_kernel_64.S
@@ -96,8 +96,7 @@ relocate_kernel:
 
 	/* jump to identity mapped page */
 	addq	$(identity_mapped - relocate_kernel), %r8
-	pushq	%r8
-	ret
+	jmp	*%r8
 
 identity_mapped:
 	/* set return address to 0 if not preserving context */
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 2367ae0..2d1264d 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -113,6 +113,7 @@
 #include <asm/prom.h>
 #include <asm/microcode.h>
 #include <asm/mmu_context.h>
+#include <asm/boot.h>
 
 /*
  * max_low_pfn_mapped: highest direct mapped pfn under 4GB
@@ -208,10 +209,12 @@ EXPORT_SYMBOL(boot_cpu_data);
 #endif
 
 
-#if !defined(CONFIG_X86_PAE) || defined(CONFIG_X86_64)
-__visible unsigned long mmu_cr4_features;
+#ifdef CONFIG_X86_64
+__visible unsigned long mmu_cr4_features __read_only = X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE;
+#elif defined(CONFIG_X86_PAE)
+__visible unsigned long mmu_cr4_features __read_only = X86_CR4_PAE;
 #else
-__visible unsigned long mmu_cr4_features = X86_CR4_PAE;
+__visible unsigned long mmu_cr4_features __read_only;
 #endif
 
 /* Boot loader ID and version as integers, for the benefit of proc_dointvec */
@@ -759,7 +762,7 @@ static void __init trim_bios_range(void)
 	 * area (640->1Mb) as ram even though it is not.
 	 * take them out.
 	 */
-	e820_remove_range(BIOS_BEGIN, BIOS_END - BIOS_BEGIN, E820_RAM, 1);
+	e820_remove_range(ISA_START_ADDRESS, ISA_END_ADDRESS - ISA_START_ADDRESS, E820_RAM, 1);
 
 	sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
 }
@@ -767,7 +770,7 @@ static void __init trim_bios_range(void)
 /* called before trim_bios_range() to spare extra sanitize */
 static void __init e820_add_kernel_range(void)
 {
-	u64 start = __pa_symbol(_text);
+	u64 start = __pa_symbol(ktla_ktva((unsigned long)_text));
 	u64 size = __pa_symbol(_end) - start;
 
 	/*
@@ -848,8 +851,8 @@ dump_kernel_offset(struct notifier_block *self, unsigned long v, void *p)
 
 void __init setup_arch(char **cmdline_p)
 {
-	memblock_reserve(__pa_symbol(_text),
-			 (unsigned long)__bss_stop - (unsigned long)_text);
+	memblock_reserve(__pa_symbol(ktla_ktva((unsigned long)_text)),
+			 (unsigned long)__bss_stop - ktla_ktva((unsigned long)_text));
 
 	early_reserve_initrd();
 
@@ -942,16 +945,16 @@ void __init setup_arch(char **cmdline_p)
 
 	if (!boot_params.hdr.root_flags)
 		root_mountflags &= ~MS_RDONLY;
-	init_mm.start_code = (unsigned long) _text;
-	init_mm.end_code = (unsigned long) _etext;
-	init_mm.end_data = (unsigned long) _edata;
+	init_mm.start_code = ktla_ktva((unsigned long)_text);
+	init_mm.end_code = ktla_ktva((unsigned long)_etext);
+	init_mm.end_data = (unsigned long)_edata;
 	init_mm.brk = _brk_end;
 
 	mpx_mm_init(&init_mm);
 
-	code_resource.start = __pa_symbol(_text);
-	code_resource.end = __pa_symbol(_etext)-1;
-	data_resource.start = __pa_symbol(_etext);
+	code_resource.start = __pa_symbol(ktla_ktva((unsigned long)_text));
+	code_resource.end = __pa_symbol(ktla_ktva((unsigned long)_etext))-1;
+	data_resource.start = __pa_symbol(_sdata);
 	data_resource.end = __pa_symbol(_edata)-1;
 	bss_resource.start = __pa_symbol(__bss_start);
 	bss_resource.end = __pa_symbol(__bss_stop)-1;
diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
index e4fcb87..9c06c55 100644
--- a/arch/x86/kernel/setup_percpu.c
+++ b/arch/x86/kernel/setup_percpu.c
@@ -21,19 +21,17 @@
 #include <asm/cpu.h>
 #include <asm/stackprotector.h>
 
-DEFINE_PER_CPU_READ_MOSTLY(int, cpu_number);
+#ifdef CONFIG_SMP
+DEFINE_PER_CPU_READ_MOSTLY(unsigned int, cpu_number);
 EXPORT_PER_CPU_SYMBOL(cpu_number);
+#endif
 
-#ifdef CONFIG_X86_64
 #define BOOT_PERCPU_OFFSET ((unsigned long)__per_cpu_load)
-#else
-#define BOOT_PERCPU_OFFSET 0
-#endif
 
 DEFINE_PER_CPU_READ_MOSTLY(unsigned long, this_cpu_off) = BOOT_PERCPU_OFFSET;
 EXPORT_PER_CPU_SYMBOL(this_cpu_off);
 
-unsigned long __per_cpu_offset[NR_CPUS] __read_mostly = {
+unsigned long __per_cpu_offset[NR_CPUS] __read_only = {
 	[0 ... NR_CPUS-1] = BOOT_PERCPU_OFFSET,
 };
 EXPORT_SYMBOL(__per_cpu_offset);
@@ -66,7 +64,7 @@ static bool __init pcpu_need_numa(void)
 {
 #ifdef CONFIG_NEED_MULTIPLE_NODES
 	pg_data_t *last = NULL;
-	unsigned int cpu;
+	int cpu;
 
 	for_each_possible_cpu(cpu) {
 		int node = early_cpu_to_node(cpu);
@@ -155,10 +153,10 @@ static inline void setup_percpu_segment(int cpu)
 {
 #ifdef CONFIG_X86_32
 	struct desc_struct gdt;
+	unsigned long base = per_cpu_offset(cpu);
 
-	pack_descriptor(&gdt, per_cpu_offset(cpu), 0xFFFFF,
-			0x2 | DESCTYPE_S, 0x8);
-	gdt.s = 1;
+	pack_descriptor(&gdt, base, (VMALLOC_END - base - 1) >> PAGE_SHIFT,
+			0x83 | DESCTYPE_S, 0xC);
 	write_gdt_entry(get_cpu_gdt_table(cpu),
 			GDT_ENTRY_PERCPU, &gdt, DESCTYPE_S);
 #endif
@@ -219,6 +217,11 @@ void __init setup_per_cpu_areas(void)
 	/* alrighty, percpu areas up and running */
 	delta = (unsigned long)pcpu_base_addr - (unsigned long)__per_cpu_start;
 	for_each_possible_cpu(cpu) {
+#ifdef CONFIG_CC_STACKPROTECTOR
+#ifdef CONFIG_X86_32
+		unsigned long canary = per_cpu(stack_canary.canary, cpu);
+#endif
+#endif
 		per_cpu_offset(cpu) = delta + pcpu_unit_offsets[cpu];
 		per_cpu(this_cpu_off, cpu) = per_cpu_offset(cpu);
 		per_cpu(cpu_number, cpu) = cpu;
@@ -259,6 +262,12 @@ void __init setup_per_cpu_areas(void)
 		 */
 		set_cpu_numa_node(cpu, early_cpu_to_node(cpu));
 #endif
+#ifdef CONFIG_CC_STACKPROTECTOR
+#ifdef CONFIG_X86_32
+		if (!cpu)
+			per_cpu(stack_canary.canary, cpu) = canary;
+#endif
+#endif
 		/*
 		 * Up to this point, the boot CPU has been using .init.data
 		 * area.  Reload any changed state for the boot CPU.
diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
index 548ddf7..9b53e78 100644
--- a/arch/x86/kernel/signal.c
+++ b/arch/x86/kernel/signal.c
@@ -226,7 +226,7 @@ static unsigned long align_sigframe(unsigned long sp)
 	 * Align the stack pointer according to the i386 ABI,
 	 * i.e. so that on function entry ((sp + 4) & 15) == 0.
 	 */
-	sp = ((sp + 4) & -16ul) - 4;
+	sp = ((sp - 12) & -16ul) - 4;
 #else /* !CONFIG_X86_32 */
 	sp = round_down(sp, 16) - 8;
 #endif
@@ -335,10 +335,9 @@ __setup_frame(int sig, struct ksignal *ksig, sigset_t *set,
 	}
 
 	if (current->mm->context.vdso)
-		restorer = current->mm->context.vdso +
-			vdso_image_32.sym___kernel_sigreturn;
+		restorer = (void __force_user *)(current->mm->context.vdso + vdso_image_32.sym___kernel_sigreturn);
 	else
-		restorer = &frame->retcode;
+		restorer = frame->retcode;
 	if (ksig->ka.sa.sa_flags & SA_RESTORER)
 		restorer = ksig->ka.sa.sa_restorer;
 
@@ -352,7 +351,7 @@ __setup_frame(int sig, struct ksignal *ksig, sigset_t *set,
 	 * reasons and because gdb uses it as a signature to notice
 	 * signal handler stack frames.
 	 */
-	err |= __put_user(*((u64 *)&retcode), (u64 *)frame->retcode);
+	err |= __put_user(*((u64 *)&retcode), (u64 __user *)frame->retcode);
 
 	if (err)
 		return -EFAULT;
@@ -399,8 +398,10 @@ static int __setup_rt_frame(int sig, struct ksignal *ksig,
 		save_altstack_ex(&frame->uc.uc_stack, regs->sp);
 
 		/* Set up to return from userspace.  */
-		restorer = current->mm->context.vdso +
-			vdso_image_32.sym___kernel_rt_sigreturn;
+		if (current->mm->context.vdso)
+			restorer = (void __force_user *)(current->mm->context.vdso + vdso_image_32.sym___kernel_rt_sigreturn);
+		else
+			restorer = (void __user *)&frame->retcode;
 		if (ksig->ka.sa.sa_flags & SA_RESTORER)
 			restorer = ksig->ka.sa.sa_restorer;
 		put_user_ex(restorer, &frame->pretcode);
@@ -412,7 +413,7 @@ static int __setup_rt_frame(int sig, struct ksignal *ksig,
 		 * reasons and because gdb uses it as a signature to notice
 		 * signal handler stack frames.
 		 */
-		put_user_ex(*((u64 *)&rt_retcode), (u64 *)frame->retcode);
+		put_user_ex(*((u64 *)&rt_retcode), (u64 __user *)frame->retcode);
 	} put_user_catch(err);
 	
 	err |= copy_siginfo_to_user(&frame->info, &ksig->info);
@@ -682,7 +683,12 @@ setup_rt_frame(struct ksignal *ksig, struct pt_regs *regs)
 {
 	int usig = ksig->sig;
 	sigset_t *set = sigmask_to_save();
-	compat_sigset_t *cset = (compat_sigset_t *) set;
+	sigset_t sigcopy;
+	compat_sigset_t *cset;
+
+	sigcopy = *set;
+
+	cset = (compat_sigset_t *) &sigcopy;
 
 	/* Set up the stack frame */
 	if (is_ia32_frame()) {
@@ -693,7 +699,7 @@ setup_rt_frame(struct ksignal *ksig, struct pt_regs *regs)
 	} else if (is_x32_frame()) {
 		return x32_setup_rt_frame(ksig, cset, regs);
 	} else {
-		return __setup_rt_frame(ksig->sig, ksig, set, regs);
+		return __setup_rt_frame(ksig->sig, ksig, &sigcopy, regs);
 	}
 }
 
diff --git a/arch/x86/kernel/smp.c b/arch/x86/kernel/smp.c
index 658777c..6285f88 100644
--- a/arch/x86/kernel/smp.c
+++ b/arch/x86/kernel/smp.c
@@ -336,7 +336,7 @@ static int __init nonmi_ipi_setup(char *str)
 
 __setup("nonmi_ipi", nonmi_ipi_setup);
 
-struct smp_ops smp_ops = {
+struct smp_ops smp_ops __read_only = {
 	.smp_prepare_boot_cpu	= native_smp_prepare_boot_cpu,
 	.smp_prepare_cpus	= native_smp_prepare_cpus,
 	.smp_cpus_done		= native_smp_cpus_done,
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 0e4329e..286c7ca 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -221,14 +221,17 @@ static void notrace start_secondary(void *unused)
 
 	enable_start_cpu0 = 0;
 
-#ifdef CONFIG_X86_32
+	/* otherwise gcc will move up smp_processor_id before the cpu_init */
+	barrier();
+
 	/* switch away from the initial page table */
+#ifdef CONFIG_PAX_PER_CPU_PGD
+	load_cr3(get_cpu_pgd(smp_processor_id(), kernel));
+#else
 	load_cr3(swapper_pg_dir);
+#endif
 	__flush_tlb_all();
-#endif
 
-	/* otherwise gcc will move up smp_processor_id before the cpu_init */
-	barrier();
 	/*
 	 * Check TSC synchronization with the BP:
 	 */
@@ -921,16 +924,15 @@ void common_cpu_up(unsigned int cpu, struct task_struct *idle)
 	alternatives_enable_smp();
 
 	per_cpu(current_task, cpu) = idle;
+	per_cpu(current_tinfo, cpu) = &idle->tinfo;
 
 #ifdef CONFIG_X86_32
-	/* Stack for startup_32 can be just as for start_secondary onwards */
 	irq_ctx_init(cpu);
-	per_cpu(cpu_current_top_of_stack, cpu) =
-		(unsigned long)task_stack_page(idle) + THREAD_SIZE;
 #else
 	clear_tsk_thread_flag(idle, TIF_FORK);
 	initial_gs = per_cpu_offset(cpu);
 #endif
+	per_cpu(cpu_current_top_of_stack, cpu) = (unsigned long)task_stack_page(idle) - 16 + THREAD_SIZE;
 }
 
 /*
@@ -951,9 +953,11 @@ static int do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
 	unsigned long timeout;
 
 	idle->thread.sp = (unsigned long) (((struct pt_regs *)
-			  (THREAD_SIZE +  task_stack_page(idle))) - 1);
+			  (THREAD_SIZE - 16 + task_stack_page(idle))) - 1);
 
+	pax_open_kernel();
 	early_gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu);
+	pax_close_kernel();
 	initial_code = (unsigned long)start_secondary;
 	stack_start  = idle->thread.sp;
 
@@ -1101,6 +1105,15 @@ int native_cpu_up(unsigned int cpu, struct task_struct *tidle)
 
 	common_cpu_up(cpu, tidle);
 
+#ifdef CONFIG_PAX_PER_CPU_PGD
+	clone_pgd_range(get_cpu_pgd(cpu, kernel) + KERNEL_PGD_BOUNDARY,
+			swapper_pg_dir + KERNEL_PGD_BOUNDARY,
+			KERNEL_PGD_PTRS);
+	clone_pgd_range(get_cpu_pgd(cpu, user) + KERNEL_PGD_BOUNDARY,
+			swapper_pg_dir + KERNEL_PGD_BOUNDARY,
+			KERNEL_PGD_PTRS);
+#endif
+
 	/*
 	 * We have to walk the irq descriptors to setup the vector
 	 * space for the cpu which comes online.  Prevent irq
diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c
index c9a0738..f0ab628 100644
--- a/arch/x86/kernel/step.c
+++ b/arch/x86/kernel/step.c
@@ -45,7 +45,8 @@ unsigned long convert_ip_to_linear(struct task_struct *child, struct pt_regs *re
 			addr += base;
 		}
 		mutex_unlock(&child->mm->context.lock);
-	}
+	} else if (seg == __KERNEL_CS || seg == __KERNEXEC_KERNEL_CS)
+		addr = ktla_ktva(addr);
 #endif
 
 	return addr;
@@ -57,6 +58,9 @@ static int is_setting_trap_flag(struct task_struct *child, struct pt_regs *regs)
 	unsigned char opcode[15];
 	unsigned long addr = convert_ip_to_linear(child, regs);
 
+	if (addr == -EINVAL)
+		return 0;
+
 	copied = access_process_vm(child, addr, opcode, sizeof(opcode), 0);
 	for (i = 0; i < copied; i++) {
 		switch (opcode[i]) {
diff --git a/arch/x86/kernel/sys_i386_32.c b/arch/x86/kernel/sys_i386_32.c
new file mode 100644
index 0000000..920e413
--- /dev/null
+++ b/arch/x86/kernel/sys_i386_32.c
@@ -0,0 +1,189 @@
+/*
+ * This file contains various random system calls that
+ * have a non-standard calling sequence on the Linux/i386
+ * platform.
+ */
+
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/fs.h>
+#include <linux/smp.h>
+#include <linux/sem.h>
+#include <linux/msg.h>
+#include <linux/shm.h>
+#include <linux/stat.h>
+#include <linux/syscalls.h>
+#include <linux/mman.h>
+#include <linux/file.h>
+#include <linux/utsname.h>
+#include <linux/ipc.h>
+#include <linux/elf.h>
+
+#include <linux/uaccess.h>
+#include <linux/unistd.h>
+
+#include <asm/syscalls.h>
+
+int i386_mmap_check(unsigned long addr, unsigned long len, unsigned long flags)
+{
+	unsigned long pax_task_size = TASK_SIZE;
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (current->mm->pax_flags & MF_PAX_SEGMEXEC)
+		pax_task_size = SEGMEXEC_TASK_SIZE;
+#endif
+
+	if (flags & MAP_FIXED)
+		if (len > pax_task_size || addr > pax_task_size - len)
+			return -EINVAL;
+
+	return 0;
+}
+
+/*
+ * Align a virtual address to avoid aliasing in the I$ on AMD F15h.
+ */
+static unsigned long get_align_mask(void)
+{
+	if (va_align.flags < 0 || !(va_align.flags & ALIGN_VA_32))
+		return 0;
+
+	if (!(current->flags & PF_RANDOMIZE))
+		return 0;
+
+	return va_align.mask;
+}
+
+unsigned long
+arch_get_unmapped_area(struct file *filp, unsigned long addr,
+		unsigned long len, unsigned long pgoff, unsigned long flags)
+{
+	struct mm_struct *mm = current->mm;
+	struct vm_area_struct *vma;
+	unsigned long pax_task_size = TASK_SIZE;
+	struct vm_unmapped_area_info info;
+	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (mm->pax_flags & MF_PAX_SEGMEXEC)
+		pax_task_size = SEGMEXEC_TASK_SIZE;
+#endif
+
+	pax_task_size -= PAGE_SIZE;
+
+	if (len > pax_task_size)
+		return -ENOMEM;
+
+	if (flags & MAP_FIXED)
+		return addr;
+
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
+	if (addr) {
+		addr = PAGE_ALIGN(addr);
+		if (pax_task_size - len >= addr) {
+			vma = find_vma(mm, addr);
+			if (check_heap_stack_gap(vma, addr, len, offset))
+				return addr;
+		}
+	}
+
+	info.flags = 0;
+	info.length = len;
+	info.align_mask = filp ? get_align_mask() : 0;
+	info.align_offset = pgoff << PAGE_SHIFT;
+	info.threadstack_offset = offset;
+
+#ifdef CONFIG_PAX_PAGEEXEC
+	if (!(__supported_pte_mask & _PAGE_NX) && (mm->pax_flags & MF_PAX_PAGEEXEC) && (flags & MAP_EXECUTABLE)) {
+		info.low_limit = 0x00110000UL;
+		info.high_limit = mm->start_code;
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			info.low_limit += mm->delta_mmap & 0x03FFF000UL;
+#endif
+
+		if (info.low_limit < info.high_limit) {
+			addr = vm_unmapped_area(&info);
+			if (!IS_ERR_VALUE(addr))
+				return addr;
+		}
+	} else
+#endif
+
+	info.low_limit = mm->mmap_base;
+	info.high_limit = pax_task_size;
+
+	return vm_unmapped_area(&info);
+}
+
+unsigned long
+arch_get_unmapped_area_topdown(struct file *filp, unsigned long addr0,
+			  unsigned long len, unsigned long pgoff,
+			  unsigned long flags)
+{
+	struct vm_area_struct *vma;
+	struct mm_struct *mm = current->mm;
+	unsigned long addr = addr0, pax_task_size = TASK_SIZE;
+	struct vm_unmapped_area_info info;
+	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (mm->pax_flags & MF_PAX_SEGMEXEC)
+		pax_task_size = SEGMEXEC_TASK_SIZE;
+#endif
+
+	pax_task_size -= PAGE_SIZE;
+
+	/* requested length too big for entire address space */
+	if (len > pax_task_size)
+		return -ENOMEM;
+
+	if (flags & MAP_FIXED)
+		return addr;
+
+#ifdef CONFIG_PAX_PAGEEXEC
+	if (!(__supported_pte_mask & _PAGE_NX) && (mm->pax_flags & MF_PAX_PAGEEXEC) && (flags & MAP_EXECUTABLE))
+		goto bottomup;
+#endif
+
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
+	/* requesting a specific address */
+	if (addr) {
+		addr = PAGE_ALIGN(addr);
+		if (pax_task_size - len >= addr) {
+			vma = find_vma(mm, addr);
+			if (check_heap_stack_gap(vma, addr, len, offset))
+				return addr;
+		}
+	}
+
+	info.flags = VM_UNMAPPED_AREA_TOPDOWN;
+	info.length = len;
+	info.low_limit = PAGE_SIZE;
+	info.high_limit = mm->mmap_base;
+	info.align_mask = filp ? get_align_mask() : 0;
+	info.align_offset = pgoff << PAGE_SHIFT;
+	info.threadstack_offset = offset;
+
+	addr = vm_unmapped_area(&info);
+	if (!(addr & ~PAGE_MASK))
+		return addr;
+	VM_BUG_ON(addr != -ENOMEM);
+
+bottomup:
+	/*
+	 * A failed mmap() very likely causes application failure,
+	 * so fall back to the bottom-up function here. This scenario
+	 * can happen with large stack limits and large mmap()
+	 * allocations.
+	 */
+	return arch_get_unmapped_area(filp, addr0, len, pgoff, flags);
+}
diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c
index 10e0272..a73232f 100644
--- a/arch/x86/kernel/sys_x86_64.c
+++ b/arch/x86/kernel/sys_x86_64.c
@@ -97,8 +97,8 @@ out:
 	return error;
 }
 
-static void find_start_end(unsigned long flags, unsigned long *begin,
-			   unsigned long *end)
+static void find_start_end(struct mm_struct *mm, unsigned long flags,
+			   unsigned long *begin, unsigned long *end)
 {
 	if (!test_thread_flag(TIF_ADDR32) && (flags & MAP_32BIT)) {
 		unsigned long new_begin;
@@ -117,7 +117,7 @@ static void find_start_end(unsigned long flags, unsigned long *begin,
 				*begin = new_begin;
 		}
 	} else {
-		*begin = current->mm->mmap_legacy_base;
+		*begin = mm->mmap_legacy_base;
 		*end = TASK_SIZE;
 	}
 }
@@ -130,20 +130,24 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	struct vm_area_struct *vma;
 	struct vm_unmapped_area_info info;
 	unsigned long begin, end;
+	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
 
 	if (flags & MAP_FIXED)
 		return addr;
 
-	find_start_end(flags, &begin, &end);
+	find_start_end(mm, flags, &begin, &end);
 
 	if (len > end)
 		return -ENOMEM;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (addr) {
 		addr = PAGE_ALIGN(addr);
 		vma = find_vma(mm, addr);
-		if (end - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		if (end - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
 			return addr;
 	}
 
@@ -157,18 +161,20 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 		info.align_mask = get_align_mask();
 		info.align_offset += get_align_bits();
 	}
+	info.threadstack_offset = offset;
 	return vm_unmapped_area(&info);
 }
 
 unsigned long
-arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
-			  const unsigned long len, const unsigned long pgoff,
-			  const unsigned long flags)
+arch_get_unmapped_area_topdown(struct file *filp, unsigned long addr0,
+			  unsigned long len, unsigned long pgoff,
+			  unsigned long flags)
 {
 	struct vm_area_struct *vma;
 	struct mm_struct *mm = current->mm;
 	unsigned long addr = addr0;
 	struct vm_unmapped_area_info info;
+	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
 
 	/* requested length too big for entire address space */
 	if (len > TASK_SIZE)
@@ -181,12 +187,15 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	if (!test_thread_flag(TIF_ADDR32) && (flags & MAP_32BIT))
 		goto bottomup;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	/* requesting a specific address */
 	if (addr) {
 		addr = PAGE_ALIGN(addr);
 		vma = find_vma(mm, addr);
-		if (TASK_SIZE - len >= addr &&
-				(!vma || addr + len <= vma->vm_start))
+		if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
 			return addr;
 	}
 
@@ -200,6 +209,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 		info.align_mask = get_align_mask();
 		info.align_offset += get_align_bits();
 	}
+	info.threadstack_offset = offset;
 	addr = vm_unmapped_area(&info);
 	if (!(addr & ~PAGE_MASK))
 		return addr;
diff --git a/arch/x86/kernel/tboot.c b/arch/x86/kernel/tboot.c
index e72a07f..b67cc32 100644
--- a/arch/x86/kernel/tboot.c
+++ b/arch/x86/kernel/tboot.c
@@ -44,6 +44,7 @@
 #include <asm/setup.h>
 #include <asm/e820.h>
 #include <asm/io.h>
+#include <asm/tlbflush.h>
 
 #include "../realmode/rm/wakeup.h"
 
@@ -151,6 +152,10 @@ static int map_tboot_pages(unsigned long vaddr, unsigned long start_pfn,
 	if (!tboot_pg_dir)
 		return -1;
 
+	clone_pgd_range(tboot_pg_dir + KERNEL_PGD_BOUNDARY,
+			swapper_pg_dir + KERNEL_PGD_BOUNDARY,
+			KERNEL_PGD_PTRS);
+
 	for (; nr > 0; nr--, vaddr += PAGE_SIZE, start_pfn++) {
 		if (map_tboot_page(vaddr, start_pfn, PAGE_KERNEL_EXEC))
 			return -1;
@@ -221,8 +226,6 @@ static int tboot_setup_sleep(void)
 
 void tboot_shutdown(u32 shutdown_type)
 {
-	void (*shutdown)(void);
-
 	if (!tboot_enabled())
 		return;
 
@@ -242,9 +245,12 @@ void tboot_shutdown(u32 shutdown_type)
 	tboot->shutdown_type = shutdown_type;
 
 	switch_to_tboot_pt();
+	__write_cr4(__read_cr4() & ~X86_CR4_PCIDE);
 
-	shutdown = (void(*)(void))(unsigned long)tboot->shutdown_entry;
-	shutdown();
+	/*
+	 * PaX: can't be a C indirect function call due to KERNEXEC
+	 */
+	asm volatile("jmp *%0" : : "r"((unsigned long)tboot->shutdown_entry));
 
 	/* should not reach here */
 	while (1)
@@ -310,7 +316,7 @@ static int tboot_extended_sleep(u8 sleep_state, u32 val_a, u32 val_b)
 	return -ENODEV;
 }
 
-static atomic_t ap_wfs_count;
+static atomic_unchecked_t ap_wfs_count;
 
 static int tboot_wait_for_aps(int num_aps)
 {
@@ -334,9 +340,9 @@ static int tboot_cpu_callback(struct notifier_block *nfb, unsigned long action,
 {
 	switch (action) {
 	case CPU_DYING:
-		atomic_inc(&ap_wfs_count);
+		atomic_inc_unchecked(&ap_wfs_count);
 		if (num_online_cpus() == 1)
-			if (tboot_wait_for_aps(atomic_read(&ap_wfs_count)))
+			if (tboot_wait_for_aps(atomic_read_unchecked(&ap_wfs_count)))
 				return NOTIFY_BAD;
 		break;
 	}
@@ -422,7 +428,7 @@ static __init int tboot_late_init(void)
 
 	tboot_create_trampoline();
 
-	atomic_set(&ap_wfs_count, 0);
+	atomic_set_unchecked(&ap_wfs_count, 0);
 	register_hotcpu_notifier(&tboot_cpu_notifier);
 
 #ifdef CONFIG_DEBUG_FS
diff --git a/arch/x86/kernel/time.c b/arch/x86/kernel/time.c
index d39c091..1df4349 100644
--- a/arch/x86/kernel/time.c
+++ b/arch/x86/kernel/time.c
@@ -32,7 +32,7 @@ unsigned long profile_pc(struct pt_regs *regs)
 
 	if (!user_mode(regs) && in_lock_functions(pc)) {
 #ifdef CONFIG_FRAME_POINTER
-		return *(unsigned long *)(regs->bp + sizeof(long));
+		return ktla_ktva(*(unsigned long *)(regs->bp + sizeof(long)));
 #else
 		unsigned long *sp =
 			(unsigned long *)kernel_stack_pointer(regs);
@@ -41,11 +41,17 @@ unsigned long profile_pc(struct pt_regs *regs)
 		 * or above a saved flags. Eflags has bits 22-31 zero,
 		 * kernel addresses don't.
 		 */
+
+#ifdef CONFIG_PAX_KERNEXEC
+		return ktla_ktva(sp[0]);
+#else
 		if (sp[0] >> 22)
 			return sp[0];
 		if (sp[1] >> 22)
 			return sp[1];
 #endif
+
+#endif
 	}
 	return pc;
 }
diff --git a/arch/x86/kernel/tls.c b/arch/x86/kernel/tls.c
index 7fc5e84..c6e445a 100644
--- a/arch/x86/kernel/tls.c
+++ b/arch/x86/kernel/tls.c
@@ -139,6 +139,11 @@ int do_set_thread_area(struct task_struct *p, int idx,
 	if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
 		return -EINVAL;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if ((p->mm->pax_flags & MF_PAX_SEGMEXEC) && (info.contents & MODIFY_LDT_CONTENTS_CODE))
+		return -EINVAL;
+#endif
+
 	set_tls_desc(p, idx, &info, 1);
 
 	return 0;
@@ -256,7 +261,7 @@ int regset_tls_set(struct task_struct *target, const struct user_regset *regset,
 
 	if (kbuf)
 		info = kbuf;
-	else if (__copy_from_user(infobuf, ubuf, count))
+	else if (count > sizeof infobuf || __copy_from_user(infobuf, ubuf, count))
 		return -EFAULT;
 	else
 		info = infobuf;
diff --git a/arch/x86/kernel/tracepoint.c b/arch/x86/kernel/tracepoint.c
index 1c113db..287b42e 100644
--- a/arch/x86/kernel/tracepoint.c
+++ b/arch/x86/kernel/tracepoint.c
@@ -9,11 +9,11 @@
 #include <linux/atomic.h>
 
 atomic_t trace_idt_ctr = ATOMIC_INIT(0);
-struct desc_ptr trace_idt_descr = { NR_VECTORS * 16 - 1,
+const struct desc_ptr trace_idt_descr = { NR_VECTORS * 16 - 1,
 				(unsigned long) trace_idt_table };
 
 /* No need to be aligned, but done to keep all IDTs defined the same way. */
-gate_desc trace_idt_table[NR_VECTORS] __page_aligned_bss;
+gate_desc trace_idt_table[NR_VECTORS] __page_aligned_rodata;
 
 static int trace_irq_vector_refcount;
 static DEFINE_MUTEX(irq_vector_mutex);
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 87bd6b6..8f46fc9 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -70,7 +70,7 @@
 #include <asm/proto.h>
 
 /* No need to be aligned, but done to keep all IDTs defined the same way. */
-gate_desc debug_idt_table[NR_VECTORS] __page_aligned_bss;
+gate_desc debug_idt_table[NR_VECTORS] __page_aligned_rodata;
 #else
 #include <asm/processor-flags.h>
 #include <asm/setup.h>
@@ -78,7 +78,7 @@ gate_desc debug_idt_table[NR_VECTORS] __page_aligned_bss;
 #endif
 
 /* Must be page-aligned because the real IDT is used in a fixmap. */
-gate_desc idt_table[NR_VECTORS] __page_aligned_bss;
+gate_desc idt_table[NR_VECTORS] __page_aligned_rodata;
 
 DECLARE_BITMAP(used_vectors, NR_VECTORS);
 EXPORT_SYMBOL_GPL(used_vectors);
@@ -151,7 +151,7 @@ void ist_begin_non_atomic(struct pt_regs *regs)
 	 * will catch asm bugs and any attempt to use ist_preempt_enable
 	 * from double_fault.
 	 */
-	BUG_ON((unsigned long)(current_top_of_stack() -
+	BUG_ON((unsigned long)(current_top_of_stack(smp_processor_id()) -
 			       current_stack_pointer()) >= THREAD_SIZE);
 
 	preempt_enable_no_resched();
@@ -168,7 +168,7 @@ void ist_end_non_atomic(void)
 }
 
 static nokprobe_inline int
-do_trap_no_signal(struct task_struct *tsk, int trapnr, char *str,
+do_trap_no_signal(struct task_struct *tsk, int trapnr, const char *str,
 		  struct pt_regs *regs,	long error_code)
 {
 	if (v8086_mode(regs)) {
@@ -188,8 +188,25 @@ do_trap_no_signal(struct task_struct *tsk, int trapnr, char *str,
 		if (!fixup_exception(regs, trapnr)) {
 			tsk->thread.error_code = error_code;
 			tsk->thread.trap_nr = trapnr;
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+			if (trapnr == X86_TRAP_SS && ((regs->cs & 0xFFFF) == __KERNEL_CS || (regs->cs & 0xFFFF) == __KERNEXEC_KERNEL_CS))
+				str = "PAX: suspicious stack segment fault";
+#endif
+
+#ifdef CONFIG_PAX_RAP
+			if (trapnr == X86_TRAP_UD)
+				str = "PAX: overwritten function pointer or return address detected";
+#endif
+
 			die(str, regs, error_code);
 		}
+
+#ifdef CONFIG_PAX_REFCOUNT
+		if (trapnr == X86_TRAP_OF)
+			pax_report_refcount_overflow(regs);
+#endif
+
 		return 0;
 	}
 
@@ -228,7 +245,7 @@ static siginfo_t *fill_trap_info(struct pt_regs *regs, int signr, int trapnr,
 }
 
 static void
-do_trap(int trapnr, int signr, char *str, struct pt_regs *regs,
+do_trap(int trapnr, int signr, const char *str, struct pt_regs *regs,
 	long error_code, siginfo_t *info)
 {
 	struct task_struct *tsk = current;
@@ -251,7 +268,7 @@ do_trap(int trapnr, int signr, char *str, struct pt_regs *regs,
 	if (show_unhandled_signals && unhandled_signal(tsk, signr) &&
 	    printk_ratelimit()) {
 		pr_info("%s[%d] trap %s ip:%lx sp:%lx error:%lx",
-			tsk->comm, tsk->pid, str,
+			tsk->comm, task_pid_nr(tsk), str,
 			regs->ip, regs->sp, error_code);
 		print_vma_addr(" in ", regs->ip);
 		pr_cont("\n");
@@ -331,6 +348,11 @@ dotraplinkage void do_double_fault(struct pt_regs *regs, long error_code)
 	tsk->thread.error_code = error_code;
 	tsk->thread.trap_nr = X86_TRAP_DF;
 
+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
+	if ((unsigned long)tsk->stack - regs->sp <= PAGE_SIZE)
+		die("grsec: kernel stack overflow detected", regs, error_code);	
+#endif
+
 #ifdef CONFIG_DOUBLEFAULT
 	df_debug(regs, error_code);
 #endif
@@ -443,11 +465,35 @@ do_general_protection(struct pt_regs *regs, long error_code)
 		tsk->thread.error_code = error_code;
 		tsk->thread.trap_nr = X86_TRAP_GP;
 		if (notify_die(DIE_GPF, "general protection fault", regs, error_code,
-			       X86_TRAP_GP, SIGSEGV) != NOTIFY_STOP)
+			       X86_TRAP_GP, SIGSEGV) != NOTIFY_STOP) {
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+			if ((regs->cs & 0xFFFF) == __KERNEL_CS || (regs->cs & 0xFFFF) == __KERNEXEC_KERNEL_CS)
+				die("PAX: suspicious general protection fault", regs, error_code);
+			else
+#endif
+
 			die("general protection fault", regs, error_code);
+		}
 		return;
 	}
 
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
+	if (!(__supported_pte_mask & _PAGE_NX) && tsk->mm && (tsk->mm->pax_flags & MF_PAX_PAGEEXEC)) {
+		struct mm_struct *mm = tsk->mm;
+		unsigned long limit;
+
+		down_write(&mm->mmap_sem);
+		limit = mm->context.user_cs_limit;
+		if (limit < TASK_SIZE) {
+			track_exec_limit(mm, limit, TASK_SIZE, VM_EXEC);
+			up_write(&mm->mmap_sem);
+			return;
+		}
+		up_write(&mm->mmap_sem);
+	}
+#endif
+
 	tsk->thread.error_code = error_code;
 	tsk->thread.trap_nr = X86_TRAP_GP;
 
@@ -545,6 +591,9 @@ struct bad_iret_stack *fixup_bad_iret(struct bad_iret_stack *s)
 		container_of(task_pt_regs(current),
 			     struct bad_iret_stack, regs);
 
+	if ((current->thread.sp0 ^ (unsigned long)s) < THREAD_SIZE)
+		new_stack = s;
+
 	/* Copy the IRET target to the new stack. */
 	memmove(&new_stack->regs.ip, (void *)s->regs.sp, 5*8);
 
@@ -716,7 +765,7 @@ exit:
 	 * This is the most likely code path that involves non-trivial use
 	 * of the SYSENTER stack.  Check that we haven't overrun it.
 	 */
-	WARN(this_cpu_read(cpu_tss.SYSENTER_stack_canary) != STACK_END_MAGIC,
+	WARN(cpu_tss[raw_smp_processor_id()].SYSENTER_stack_canary != STACK_END_MAGIC,
 	     "Overran or corrupted SYSENTER stack\n");
 #endif
 	ist_exit(regs);
@@ -846,7 +895,7 @@ void __init early_trap_init(void)
 	 * since we don't have trace_debug and it will be reset to
 	 * 'debug' in trap_init() by set_intr_gate_ist().
 	 */
-	set_intr_gate_notrace(X86_TRAP_DB, debug);
+	set_intr_gate_notrace(X86_TRAP_DB, int1);
 	/* int3 can be called from all */
 	set_system_intr_gate(X86_TRAP_BP, &int3);
 #ifdef CONFIG_X86_32
@@ -931,7 +980,7 @@ void __init trap_init(void)
 	 * in early_trap_init(). However, ITS works only after
 	 * cpu_init() loads TSS. See comments in early_trap_init().
 	 */
-	set_intr_gate_ist(X86_TRAP_DB, &debug, DEBUG_STACK);
+	set_intr_gate_ist(X86_TRAP_DB, &int1, DEBUG_STACK);
 	/* int3 can be called from all */
 	set_system_intr_gate_ist(X86_TRAP_BP, &int3, DEBUG_STACK);
 
@@ -939,7 +988,7 @@ void __init trap_init(void)
 
 #ifdef CONFIG_X86_64
 	memcpy(&debug_idt_table, &idt_table, IDT_ENTRIES * 16);
-	set_nmi_gate(X86_TRAP_DB, &debug);
+	set_nmi_gate(X86_TRAP_DB, &int1);
 	set_nmi_gate(X86_TRAP_BP, &int3);
 #endif
 }
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index c9c4c7c..f6a623a 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -156,7 +156,7 @@ static void cyc2ns_write_end(int cpu, struct cyc2ns_data *data)
 	 */
 	smp_wmb();
 
-	ACCESS_ONCE(c2n->head) = data;
+	ACCESS_ONCE_RW(c2n->head) = data;
 }
 
 /*
diff --git a/arch/x86/kernel/uprobes.c b/arch/x86/kernel/uprobes.c
index bf4db6e..624137c 100644
--- a/arch/x86/kernel/uprobes.c
+++ b/arch/x86/kernel/uprobes.c
@@ -287,7 +287,7 @@ static int uprobe_init_insn(struct arch_uprobe *auprobe, struct insn *insn, bool
 {
 	u32 volatile *good_insns;
 
-	insn_init(insn, auprobe->insn, sizeof(auprobe->insn), x86_64);
+	insn_init(insn, (void *)ktva_ktla((unsigned long)auprobe->insn), sizeof(auprobe->insn), x86_64);
 	/* has the side-effect of processing the entire instruction */
 	insn_get_length(insn);
 	if (WARN_ON_ONCE(!insn_complete(insn)))
@@ -978,7 +978,7 @@ arch_uretprobe_hijack_return_addr(unsigned long trampoline_vaddr, struct pt_regs
 
 	if (nleft != rasize) {
 		pr_err("uprobe: return address clobbered: pid=%d, %%sp=%#lx, "
-			"%%ip=%#lx\n", current->pid, regs->sp, regs->ip);
+			"%%ip=%#lx\n", task_pid_nr(current), regs->sp, regs->ip);
 
 		force_sig_info(SIGSEGV, SEND_SIG_FORCED, current);
 	}
diff --git a/arch/x86/kernel/verify_cpu.S b/arch/x86/kernel/verify_cpu.S
index 014ea59..03cfe40 100644
--- a/arch/x86/kernel/verify_cpu.S
+++ b/arch/x86/kernel/verify_cpu.S
@@ -20,6 +20,7 @@
  *	arch/x86/boot/compressed/head_64.S: Boot cpu verification
  *	arch/x86/kernel/trampoline_64.S: secondary processor verification
  *	arch/x86/kernel/head_32.S: processor startup
+ *	arch/x86/kernel/acpi/realmode/wakeup.S: 32bit processor resume
  *
  *	verify_cpu, returns the status of longmode and SSE in register %eax.
  *		0: Success    1: Failure
diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c
index 3dce1ca..3dce2ad 100644
--- a/arch/x86/kernel/vm86_32.c
+++ b/arch/x86/kernel/vm86_32.c
@@ -144,7 +144,7 @@ void save_v86_state(struct kernel_vm86_regs *regs, int retval)
 		do_exit(SIGSEGV);
 	}
 
-	tss = &per_cpu(cpu_tss, get_cpu());
+	tss = cpu_tss + get_cpu();
 	tsk->thread.sp0 = vm86->saved_sp0;
 	tsk->thread.sysenter_cs = __KERNEL_CS;
 	load_sp0(tss, &tsk->thread);
@@ -263,6 +263,13 @@ static long do_sys_vm86(struct vm86plus_struct __user *user_vm86, bool plus)
 		return -EPERM;
 	}
 
+#ifdef CONFIG_GRKERNSEC_VM86
+	if (!capable(CAP_SYS_RAWIO)) {
+		gr_handle_vm86();
+		return -EPERM;
+	}
+#endif
+
 	if (!vm86) {
 		if (!(vm86 = kzalloc(sizeof(*vm86), GFP_KERNEL)))
 			return -ENOMEM;
@@ -358,7 +365,7 @@ static long do_sys_vm86(struct vm86plus_struct __user *user_vm86, bool plus)
 	vm86->saved_sp0 = tsk->thread.sp0;
 	lazy_save_gs(vm86->regs32.gs);
 
-	tss = &per_cpu(cpu_tss, get_cpu());
+	tss = cpu_tss + get_cpu();
 	/* make room for real-mode segments */
 	tsk->thread.sp0 += 16;
 
@@ -541,7 +548,7 @@ static void do_int(struct kernel_vm86_regs *regs, int i,
 		goto cannot_handle;
 	if (i == 0x21 && is_revectored(AH(regs), &vm86->int21_revectored))
 		goto cannot_handle;
-	intr_ptr = (unsigned long __user *) (i << 2);
+	intr_ptr = (unsigned long __force_user *) (i << 2);
 	if (get_user(segoffs, intr_ptr))
 		goto cannot_handle;
 	if ((segoffs >> 16) == BIOSSEG)
@@ -834,6 +841,14 @@ static inline int get_and_reset_irq(int irqnumber)
 static int do_vm86_irq_handling(int subfunction, int irqnumber)
 {
 	int ret;
+
+#ifdef CONFIG_GRKERNSEC_VM86
+	if (!capable(CAP_SYS_RAWIO)) {
+		gr_handle_vm86();
+		return -EPERM;
+	}
+#endif
+
 	switch (subfunction) {
 		case VM86_GET_AND_RESET_IRQ: {
 			return get_and_reset_irq(irqnumber);
diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index 4c941f8..459a84d 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -26,6 +26,13 @@
 #include <asm/page_types.h>
 #include <asm/cache.h>
 #include <asm/boot.h>
+#include <asm/segment.h>
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+#define __KERNEL_TEXT_OFFSET	(LOAD_OFFSET + ____LOAD_PHYSICAL_ADDR)
+#else
+#define __KERNEL_TEXT_OFFSET	0
+#endif
 
 #undef i386     /* in case the preprocessor is a 32bit one */
 
@@ -68,30 +75,44 @@ jiffies_64 = jiffies;
 
 PHDRS {
 	text PT_LOAD FLAGS(5);          /* R_E */
+#ifdef CONFIG_X86_32
+	module PT_LOAD FLAGS(5);        /* R_E */
+#endif
+#ifdef CONFIG_XEN
+	rodata PT_LOAD FLAGS(5);        /* R_E */
+#else
+	rodata PT_LOAD FLAGS(4);        /* R__ */
+#endif
 	data PT_LOAD FLAGS(6);          /* RW_ */
-#ifdef CONFIG_X86_64
+	init.begin PT_LOAD FLAGS(6);    /* RW_ */
 #ifdef CONFIG_SMP
 	percpu PT_LOAD FLAGS(6);        /* RW_ */
 #endif
-	init PT_LOAD FLAGS(7);          /* RWE */
-#endif
+	text.init PT_LOAD FLAGS(5);     /* R_E */
+	text.exit PT_LOAD FLAGS(5);     /* R_E */
+	init PT_LOAD FLAGS(6);          /* RW_ */
 	note PT_NOTE FLAGS(0);          /* ___ */
 }
 
 SECTIONS
 {
 #ifdef CONFIG_X86_32
-	. = LOAD_OFFSET + LOAD_PHYSICAL_ADDR;
-	phys_startup_32 = ABSOLUTE(startup_32 - LOAD_OFFSET);
+	. = LOAD_OFFSET + ____LOAD_PHYSICAL_ADDR;
 #else
 	. = __START_KERNEL;
-	phys_startup_64 = ABSOLUTE(startup_64 - LOAD_OFFSET);
 #endif
 
 	/* Text and read-only data */
-	.text :  AT(ADDR(.text) - LOAD_OFFSET) {
-		_text = .;
+	.text (. - __KERNEL_TEXT_OFFSET): AT(ADDR(.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) {
 		/* bootstrapping code */
+#ifdef CONFIG_X86_32
+		phys_startup_32 = ABSOLUTE(startup_32 - LOAD_OFFSET + __KERNEL_TEXT_OFFSET);
+		__LOAD_PHYSICAL_ADDR = . - LOAD_OFFSET + __KERNEL_TEXT_OFFSET;
+#else
+		phys_startup_64 = ABSOLUTE(startup_64 - LOAD_OFFSET + __KERNEL_TEXT_OFFSET);
+		__LOAD_PHYSICAL_ADDR = ABSOLUTE(. - LOAD_OFFSET + __KERNEL_TEXT_OFFSET);
+#endif
+		_text = .;
 		HEAD_TEXT
 		. = ALIGN(8);
 		_stext = .;
@@ -104,13 +125,35 @@ SECTIONS
 		SOFTIRQENTRY_TEXT
 		*(.fixup)
 		*(.gnu.warning)
-		/* End of text section */
-		_etext = .;
 	} :text = 0x9090
 
-	NOTES :text :note
+	. += __KERNEL_TEXT_OFFSET;
 
-	EXCEPTION_TABLE(16) :text = 0x9090
+#ifdef CONFIG_X86_32
+	. = ALIGN(PAGE_SIZE);
+	.module.text : AT(ADDR(.module.text) - LOAD_OFFSET) {
+
+#ifdef CONFIG_PAX_KERNEXEC
+		MODULES_EXEC_VADDR = .;
+		BYTE(0)
+		. += (CONFIG_PAX_KERNEXEC_MODULE_TEXT * 1024 * 1024);
+		. = ALIGN(HPAGE_SIZE) - 1;
+		MODULES_EXEC_END = .;
+#endif
+
+	} :module
+#endif
+
+	.text.end : AT(ADDR(.text.end) - LOAD_OFFSET) {
+		/* End of text section */
+		BYTE(0)
+		_etext = . - __KERNEL_TEXT_OFFSET;
+	}
+
+	. = ALIGN(PAGE_SIZE);
+	NOTES :rodata :note
+
+	EXCEPTION_TABLE(16) :rodata
 
 	/* .text should occupy whole number of pages */
 	. = ALIGN(PAGE_SIZE);
@@ -120,16 +163,20 @@ SECTIONS
 
 	/* Data */
 	.data : AT(ADDR(.data) - LOAD_OFFSET) {
+
+#ifdef CONFIG_PAX_KERNEXEC
+		. = ALIGN(HPAGE_SIZE);
+#else
+		. = ALIGN(PAGE_SIZE);
+#endif
+
 		/* Start of data section */
 		_sdata = .;
 
 		/* init_task */
 		INIT_TASK_DATA(THREAD_SIZE)
 
-#ifdef CONFIG_X86_32
-		/* 32 bit has nosave before _edata */
 		NOSAVE_DATA
-#endif
 
 		PAGE_ALIGNED_DATA(PAGE_SIZE)
 
@@ -172,12 +219,19 @@ SECTIONS
        . = ALIGN(__vvar_page + PAGE_SIZE, PAGE_SIZE);
 
 	/* Init code and data - will be freed after init */
-	. = ALIGN(PAGE_SIZE);
 	.init.begin : AT(ADDR(.init.begin) - LOAD_OFFSET) {
+		BYTE(0)
+
+#ifdef CONFIG_PAX_KERNEXEC
+		. = ALIGN(HPAGE_SIZE);
+#else
+		. = ALIGN(PAGE_SIZE);
+#endif
+
 		__init_begin = .; /* paired with __init_end */
-	}
+	} :init.begin
 
-#if defined(CONFIG_X86_64) && defined(CONFIG_SMP)
+#ifdef CONFIG_SMP
 	/*
 	 * percpu offsets are zero-based on SMP.  PERCPU_VADDR() changes the
 	 * output PHDR, so the next output section - .init.text - should
@@ -188,10 +242,13 @@ SECTIONS
 	       "per-CPU data too large - increase CONFIG_PHYSICAL_START")
 #endif
 
-	INIT_TEXT_SECTION(PAGE_SIZE)
-#ifdef CONFIG_X86_64
-	:init
-#endif
+	. = ALIGN(PAGE_SIZE);
+	init_begin = .;
+	.init.text (. - __KERNEL_TEXT_OFFSET): AT(init_begin - LOAD_OFFSET) {
+		VMLINUX_SYMBOL(_sinittext) = .;
+		INIT_TEXT
+		. = ALIGN(PAGE_SIZE);
+	} :text.init
 
 	/*
 	 * Section for code used exclusively before alternatives are run. All
@@ -200,11 +257,29 @@ SECTIONS
 	 *
 	 * See static_cpu_has() for an example.
 	 */
-	.altinstr_aux : AT(ADDR(.altinstr_aux) - LOAD_OFFSET) {
+	.altinstr_aux : AT(ADDR(.altinstr_aux) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) {
 		*(.altinstr_aux)
 	}
 
-	INIT_DATA_SECTION(16)
+	/*
+	 * .exit.text is discard at runtime, not link time, to deal with
+	 *  references from .altinstructions and .eh_frame
+	 */
+	.exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) {
+		EXIT_TEXT
+		VMLINUX_SYMBOL(_einittext) = .;
+
+#ifdef CONFIG_PAX_KERNEXEC
+		. = ALIGN(HPAGE_SIZE);
+#else
+		. = ALIGN(16);
+#endif
+
+	} :text.exit
+	. = init_begin + SIZEOF(.init.text) + SIZEOF(.altinstr_aux) + SIZEOF(.exit.text);
+
+	. = ALIGN(PAGE_SIZE);
+	INIT_DATA_SECTION(16) :init
 
 	.x86_cpu_dev.init : AT(ADDR(.x86_cpu_dev.init) - LOAD_OFFSET) {
 		__x86_cpu_dev_start = .;
@@ -275,19 +350,12 @@ SECTIONS
 	}
 
 	. = ALIGN(8);
-	/*
-	 * .exit.text is discard at runtime, not link time, to deal with
-	 *  references from .altinstructions and .eh_frame
-	 */
-	.exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) {
-		EXIT_TEXT
-	}
 
 	.exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) {
 		EXIT_DATA
 	}
 
-#if !defined(CONFIG_X86_64) || !defined(CONFIG_SMP)
+#ifndef CONFIG_SMP
 	PERCPU_SECTION(INTERNODE_CACHE_BYTES)
 #endif
 
@@ -306,16 +374,10 @@ SECTIONS
 	.smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
 		__smp_locks = .;
 		*(.smp_locks)
-		. = ALIGN(PAGE_SIZE);
 		__smp_locks_end = .;
+		. = ALIGN(PAGE_SIZE);
 	}
 
-#ifdef CONFIG_X86_64
-	.data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) {
-		NOSAVE_DATA
-	}
-#endif
-
 	/* BSS */
 	. = ALIGN(PAGE_SIZE);
 	.bss : AT(ADDR(.bss) - LOAD_OFFSET) {
@@ -331,6 +393,7 @@ SECTIONS
 		__brk_base = .;
 		. += 64 * 1024;		/* 64k alignment slop space */
 		*(.brk_reservation)	/* areas brk users have reserved */
+		. = ALIGN(HPAGE_SIZE);
 		__brk_limit = .;
 	}
 
@@ -361,13 +424,12 @@ SECTIONS
  * for the boot processor.
  */
 #define INIT_PER_CPU(x) init_per_cpu__##x = x + __per_cpu_load
-INIT_PER_CPU(gdt_page);
 INIT_PER_CPU(irq_stack_union);
 
 /*
  * Build-time check on the image size:
  */
-. = ASSERT((_end - _text <= KERNEL_IMAGE_SIZE),
+. = ASSERT((_end - _text - __KERNEL_TEXT_OFFSET <= KERNEL_IMAGE_SIZE),
 	   "kernel image bigger than KERNEL_IMAGE_SIZE");
 
 #ifdef CONFIG_SMP
diff --git a/arch/x86/kernel/x8664_ksyms_64.c b/arch/x86/kernel/x8664_ksyms_64.c
index cd05942..095d766 100644
--- a/arch/x86/kernel/x8664_ksyms_64.c
+++ b/arch/x86/kernel/x8664_ksyms_64.c
@@ -34,8 +34,6 @@ EXPORT_SYMBOL(copy_user_generic_string);
 EXPORT_SYMBOL(copy_user_generic_unrolled);
 EXPORT_SYMBOL(copy_user_enhanced_fast_string);
 EXPORT_SYMBOL(__copy_user_nocache);
-EXPORT_SYMBOL(_copy_from_user);
-EXPORT_SYMBOL(_copy_to_user);
 
 EXPORT_SYMBOL_GPL(memcpy_mcsafe);
 
@@ -79,3 +77,7 @@ EXPORT_SYMBOL(native_load_gs_index);
 EXPORT_SYMBOL(___preempt_schedule);
 EXPORT_SYMBOL(___preempt_schedule_notrace);
 #endif
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+EXPORT_SYMBOL(cpu_pgd);
+#endif
diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
index dad5fe9..ce5f4ba 100644
--- a/arch/x86/kernel/x86_init.c
+++ b/arch/x86/kernel/x86_init.c
@@ -91,7 +91,7 @@ struct x86_cpuinit_ops x86_cpuinit = {
 static void default_nmi_init(void) { };
 static int default_i8042_detect(void) { return 1; };
 
-struct x86_platform_ops x86_platform = {
+struct x86_platform_ops x86_platform __read_only = {
 	.calibrate_tsc			= native_calibrate_tsc,
 	.get_wallclock			= mach_get_cmos_time,
 	.set_wallclock			= mach_set_rtc_mmss,
@@ -107,7 +107,7 @@ struct x86_platform_ops x86_platform = {
 EXPORT_SYMBOL_GPL(x86_platform);
 
 #if defined(CONFIG_PCI_MSI)
-struct x86_msi_ops x86_msi = {
+struct x86_msi_ops x86_msi __read_only = {
 	.setup_msi_irqs		= native_setup_msi_irqs,
 	.teardown_msi_irq	= native_teardown_msi_irq,
 	.teardown_msi_irqs	= default_teardown_msi_irqs,
@@ -136,7 +136,7 @@ void arch_restore_msi_irqs(struct pci_dev *dev)
 }
 #endif
 
-struct x86_io_apic_ops x86_io_apic_ops = {
+struct x86_io_apic_ops x86_io_apic_ops __read_only = {
 	.read			= native_io_apic_read,
 	.disable		= native_disable_io_apic,
 };
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index bbbaa80..25071dc 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -222,15 +222,20 @@ int kvm_vcpu_ioctl_set_cpuid2(struct kvm_vcpu *vcpu,
 			      struct kvm_cpuid2 *cpuid,
 			      struct kvm_cpuid_entry2 __user *entries)
 {
-	int r;
+	int r, i;
 
 	r = -E2BIG;
 	if (cpuid->nent > KVM_MAX_CPUID_ENTRIES)
 		goto out;
 	r = -EFAULT;
-	if (copy_from_user(&vcpu->arch.cpuid_entries, entries,
-			   cpuid->nent * sizeof(struct kvm_cpuid_entry2)))
+	if (!access_ok(VERIFY_READ, entries, cpuid->nent * sizeof(struct kvm_cpuid_entry2)))
 		goto out;
+	for (i = 0; i < cpuid->nent; ++i) {
+		struct kvm_cpuid_entry2 cpuid_entry;
+		if (__copy_from_user(&cpuid_entry, entries + i, sizeof(cpuid_entry)))
+			goto out;
+		vcpu->arch.cpuid_entries[i] = cpuid_entry;
+	}
 	vcpu->arch.cpuid_nent = cpuid->nent;
 	kvm_apic_set_version(vcpu);
 	kvm_x86_ops->cpuid_update(vcpu);
@@ -243,15 +248,19 @@ int kvm_vcpu_ioctl_get_cpuid2(struct kvm_vcpu *vcpu,
 			      struct kvm_cpuid2 *cpuid,
 			      struct kvm_cpuid_entry2 __user *entries)
 {
-	int r;
+	int r, i;
 
 	r = -E2BIG;
 	if (cpuid->nent < vcpu->arch.cpuid_nent)
 		goto out;
 	r = -EFAULT;
-	if (copy_to_user(entries, &vcpu->arch.cpuid_entries,
-			 vcpu->arch.cpuid_nent * sizeof(struct kvm_cpuid_entry2)))
+	if (!access_ok(VERIFY_WRITE, entries, vcpu->arch.cpuid_nent * sizeof(struct kvm_cpuid_entry2)))
 		goto out;
+	for (i = 0; i < vcpu->arch.cpuid_nent; ++i) {
+		struct kvm_cpuid_entry2 cpuid_entry = vcpu->arch.cpuid_entries[i];
+		if (__copy_to_user(entries + i, &cpuid_entry, sizeof(cpuid_entry)))
+			goto out;
+	}
 	return 0;
 
 out:
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index a2f24af..d1cedbb 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -972,7 +972,7 @@ static int em_bsr_c(struct x86_emulate_ctxt *ctxt)
 static __always_inline u8 test_cc(unsigned int condition, unsigned long flags)
 {
 	u8 rc;
-	void (*fop)(void) = (void *)em_setcc + 4 * (condition & 0xf);
+	void (*fop)(struct fastop *) = (void *)em_setcc + 4 * (condition & 0xf);
 
 	flags = (flags & EFLAGS_MASK) | X86_EFLAGS_IF;
 	asm("push %[flags]; popf; call *%[fastop]"
@@ -1894,7 +1894,7 @@ static int em_push_sreg(struct x86_emulate_ctxt *ctxt)
 static int em_pop_sreg(struct x86_emulate_ctxt *ctxt)
 {
 	int seg = ctxt->src2.val;
-	unsigned long selector;
+	u16 selector;
 	int rc;
 
 	rc = emulate_pop(ctxt, &selector, 2);
@@ -1906,7 +1906,7 @@ static int em_pop_sreg(struct x86_emulate_ctxt *ctxt)
 	if (ctxt->op_bytes > 2)
 		rsp_increment(ctxt, ctxt->op_bytes - 2);
 
-	rc = load_segment_descriptor(ctxt, (u16)selector, seg);
+	rc = load_segment_descriptor(ctxt, selector, seg);
 	return rc;
 }
 
@@ -3883,7 +3883,7 @@ static int check_cr_write(struct x86_emulate_ctxt *ctxt)
 	int cr = ctxt->modrm_reg;
 	u64 efer = 0;
 
-	static u64 cr_reserved_bits[] = {
+	static const u64 cr_reserved_bits[] = {
 		0xffffffff00000000ULL,
 		0, 0, 0, /* CR3 checked later */
 		CR4_RESERVED_BITS,
@@ -4969,7 +4969,10 @@ done_prefixes:
 	if (ctxt->d == 0)
 		return EMULATION_FAILED;
 
-	ctxt->execute = opcode.u.execute;
+	if (ctxt->d & Fastop)
+		ctxt->u.fastop = opcode.u.fastop;
+	else
+		ctxt->u.execute = opcode.u.execute;
 
 	if (unlikely(ctxt->ud) && likely(!(ctxt->d & EmulateOnUD)))
 		return EMULATION_FAILED;
@@ -5284,15 +5287,14 @@ special_insn:
 	else
 		ctxt->eflags &= ~X86_EFLAGS_RF;
 
-	if (ctxt->execute) {
+	if (ctxt->u.execute) {
 		if (ctxt->d & Fastop) {
-			void (*fop)(struct fastop *) = (void *)ctxt->execute;
-			rc = fastop(ctxt, fop);
+			rc = fastop(ctxt, ctxt->u.fastop);
 			if (rc != X86EMUL_CONTINUE)
 				goto done;
 			goto writeback;
 		}
-		rc = ctxt->execute(ctxt);
+		rc = ctxt->u.execute(ctxt);
 		if (rc != X86EMUL_CONTINUE)
 			goto done;
 		goto writeback;
diff --git a/arch/x86/kvm/i8259.c b/arch/x86/kvm/i8259.c
index 7cc2360..6ae1236 100644
--- a/arch/x86/kvm/i8259.c
+++ b/arch/x86/kvm/i8259.c
@@ -39,14 +39,14 @@
 
 static void pic_irq_request(struct kvm *kvm, int level);
 
+static void pic_lock(struct kvm_pic *s) __acquires(&s->lock);
 static void pic_lock(struct kvm_pic *s)
-	__acquires(&s->lock)
 {
 	spin_lock(&s->lock);
 }
 
+static void pic_unlock(struct kvm_pic *s) __releases(&s->lock);
 static void pic_unlock(struct kvm_pic *s)
-	__releases(&s->lock)
 {
 	bool wakeup = s->wakeup_needed;
 	struct kvm_vcpu *vcpu, *found = NULL;
@@ -72,6 +72,7 @@ static void pic_unlock(struct kvm_pic *s)
 	}
 }
 
+static void pic_clear_isr(struct kvm_kpic_state *s, int irq) __must_hold(s->pics_state);
 static void pic_clear_isr(struct kvm_kpic_state *s, int irq)
 {
 	s->isr &= ~(1 << irq);
@@ -219,6 +220,7 @@ void kvm_pic_clear_all(struct kvm_pic *s, int irq_source_id)
 /*
  * acknowledge interrupt 'irq'
  */
+static inline void pic_intack(struct kvm_kpic_state *s, int irq) __must_hold(s);
 static inline void pic_intack(struct kvm_kpic_state *s, int irq)
 {
 	s->isr |= 1 << irq;
@@ -273,6 +275,7 @@ int kvm_pic_read_irq(struct kvm *kvm)
 	return intno;
 }
 
+void kvm_pic_reset(struct kvm_kpic_state *s) __must_hold(s);
 void kvm_pic_reset(struct kvm_kpic_state *s)
 {
 	int irq, i;
@@ -307,6 +310,7 @@ void kvm_pic_reset(struct kvm_kpic_state *s)
 			pic_clear_isr(s, irq);
 }
 
+static void pic_ioport_write(void *opaque, u32 addr, u32 val) __must_hold(opaque);
 static void pic_ioport_write(void *opaque, u32 addr, u32 val)
 {
 	struct kvm_kpic_state *s = opaque;
@@ -400,6 +404,7 @@ static void pic_ioport_write(void *opaque, u32 addr, u32 val)
 		}
 }
 
+static u32 pic_poll_read(struct kvm_kpic_state *s, u32 addr1) __must_hold(s);
 static u32 pic_poll_read(struct kvm_kpic_state *s, u32 addr1)
 {
 	int ret;
@@ -422,6 +427,7 @@ static u32 pic_poll_read(struct kvm_kpic_state *s, u32 addr1)
 	return ret;
 }
 
+static u32 pic_ioport_read(void *opaque, u32 addr1) __must_hold(opaque);
 static u32 pic_ioport_read(void *opaque, u32 addr1)
 {
 	struct kvm_kpic_state *s = opaque;
diff --git a/arch/x86/kvm/ioapic.c b/arch/x86/kvm/ioapic.c
index 9db4709..0423b6f 100644
--- a/arch/x86/kvm/ioapic.c
+++ b/arch/x86/kvm/ioapic.c
@@ -413,6 +413,8 @@ static void kvm_ioapic_eoi_inject_work(struct work_struct *work)
 #define IOAPIC_SUCCESSIVE_IRQ_MAX_COUNT 10000
 
 static void __kvm_ioapic_update_eoi(struct kvm_vcpu *vcpu,
+			struct kvm_ioapic *ioapic, int vector, int trigger_mode) __must_hold(&ioapic->lock);
+static void __kvm_ioapic_update_eoi(struct kvm_vcpu *vcpu,
 			struct kvm_ioapic *ioapic, int vector, int trigger_mode)
 {
 	struct dest_map *dest_map = &ioapic->rtc_status.dest_map;
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 1a2da0e..d1a84c1 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -57,7 +57,7 @@
 #define APIC_BUS_CYCLE_NS 1
 
 /* #define apic_debug(fmt,arg...) printk(KERN_WARNING fmt,##arg) */
-#define apic_debug(fmt, arg...)
+#define apic_debug(fmt, arg...) do {} while (0)
 
 #define APIC_LVT_NUM			6
 /* 14 is the version for Xeon and Pentium 8.4.8*/
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index bc019f7..51a5631 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -349,7 +349,7 @@ retry_walk:
 		if (unlikely(kvm_is_error_hva(host_addr)))
 			goto error;
 
-		ptep_user = (pt_element_t __user *)((void *)host_addr + offset);
+		ptep_user = (pt_element_t __force_user *)((void *)host_addr + offset);
 		if (unlikely(__copy_from_user(&pte, ptep_user, sizeof(pte))))
 			goto error;
 		walker->ptep_user[walker->level - 1] = ptep_user;
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 31346a3..038711e 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -3533,7 +3533,11 @@ static void reload_tss(struct kvm_vcpu *vcpu)
 	int cpu = raw_smp_processor_id();
 
 	struct svm_cpu_data *sd = per_cpu(svm_data, cpu);
+
+	pax_open_kernel();
 	sd->tss_desc->type = 9; /* available 32/64-bit TSS */
+	pax_close_kernel();
+
 	load_TR_desc();
 }
 
@@ -3932,6 +3936,10 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu)
 #endif
 #endif
 
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
+	__set_fs(current_thread_info()->addr_limit);
+#endif
+
 	reload_tss(vcpu);
 
 	local_irq_disable();
@@ -4307,7 +4315,7 @@ static void svm_sched_in(struct kvm_vcpu *vcpu, int cpu)
 {
 }
 
-static struct kvm_x86_ops svm_x86_ops = {
+static struct kvm_x86_ops svm_x86_ops __read_only = {
 	.cpu_has_kvm_support = has_svm,
 	.disabled_by_bios = is_disabled,
 	.hardware_setup = svm_hardware_setup,
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index faf52bac..fdc4818 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -1589,14 +1589,14 @@ static __always_inline void vmcs_writel(unsigned long field, unsigned long value
 	__vmcs_writel(field, value);
 }
 
-static __always_inline void vmcs_clear_bits(unsigned long field, u32 mask)
+static __always_inline void vmcs_clear_bits(unsigned long field, unsigned long mask)
 {
         BUILD_BUG_ON_MSG(__builtin_constant_p(field) && ((field) & 0x6000) == 0x2000,
 			 "vmcs_clear_bits does not support 64-bit fields");
 	__vmcs_writel(field, __vmcs_readl(field) & ~mask);
 }
 
-static __always_inline void vmcs_set_bits(unsigned long field, u32 mask)
+static __always_inline void vmcs_set_bits(unsigned long field, unsigned long mask)
 {
         BUILD_BUG_ON_MSG(__builtin_constant_p(field) && ((field) & 0x6000) == 0x2000,
 			 "vmcs_set_bits does not support 64-bit fields");
@@ -1865,7 +1865,11 @@ static void reload_tss(void)
 	struct desc_struct *descs;
 
 	descs = (void *)gdt->address;
+
+	pax_open_kernel();
 	descs[GDT_ENTRY_TSS].type = 9; /* available TSS */
+	pax_close_kernel();
+
 	load_TR_desc();
 }
 
@@ -2158,6 +2162,10 @@ static void vmx_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
 		vmcs_writel(HOST_TR_BASE, kvm_read_tr_base()); /* 22.2.4 */
 		vmcs_writel(HOST_GDTR_BASE, gdt->address);   /* 22.2.4 */
 
+#ifdef CONFIG_PAX_PER_CPU_PGD
+		vmcs_writel(HOST_CR3, read_cr3());  /* 22.2.3  FIXME: shadow tables */
+#endif
+
 		rdmsrl(MSR_IA32_SYSENTER_ESP, sysenter_esp);
 		vmcs_writel(HOST_IA32_SYSENTER_ESP, sysenter_esp); /* 22.2.3 */
 
@@ -2481,7 +2489,7 @@ static void setup_msrs(struct vcpu_vmx *vmx)
  * guest_tsc = (host_tsc * tsc multiplier) >> 48 + tsc_offset
  * -- Intel TSC Scaling for Virtualization White Paper, sec 1.3
  */
-static u64 guest_read_tsc(struct kvm_vcpu *vcpu)
+static u64 __intentional_overflow(-1) guest_read_tsc(struct kvm_vcpu *vcpu)
 {
 	u64 host_tsc, tsc_offset;
 
@@ -4722,7 +4730,10 @@ static void vmx_set_constant_host_state(struct vcpu_vmx *vmx)
 	unsigned long cr4;
 
 	vmcs_writel(HOST_CR0, read_cr0() & ~X86_CR0_TS);  /* 22.2.3 */
+
+#ifndef CONFIG_PAX_PER_CPU_PGD
 	vmcs_writel(HOST_CR3, read_cr3());  /* 22.2.3  FIXME: shadow tables */
+#endif
 
 	/* Save the most likely value for this task's CR4 in the VMCS. */
 	cr4 = cr4_read_shadow();
@@ -4749,7 +4760,7 @@ static void vmx_set_constant_host_state(struct vcpu_vmx *vmx)
 	vmcs_writel(HOST_IDTR_BASE, dt.address);   /* 22.2.4 */
 	vmx->host_idt_base = dt.address;
 
-	vmcs_writel(HOST_RIP, vmx_return); /* 22.2.5 */
+	vmcs_writel(HOST_RIP, ktla_ktva(vmx_return)); /* 22.2.5 */
 
 	rdmsr(MSR_IA32_SYSENTER_CS, low32, high32);
 	vmcs_write32(HOST_IA32_SYSENTER_CS, low32);
@@ -6297,11 +6308,17 @@ static __init int hardware_setup(void)
 	 * page upon invalidation.  No need to do anything if not
 	 * using the APIC_ACCESS_ADDR VMCS field.
 	 */
-	if (!flexpriority_enabled)
+	if (!flexpriority_enabled) {
+		pax_open_kernel();
 		kvm_x86_ops->set_apic_access_page_addr = NULL;
+		pax_close_kernel();
+	}
 
-	if (!cpu_has_vmx_tpr_shadow())
+	if (!cpu_has_vmx_tpr_shadow()) {
+		pax_open_kernel();
 		kvm_x86_ops->update_cr8_intercept = NULL;
+		pax_close_kernel();
+	}
 
 	if (enable_ept && !cpu_has_vmx_ept_2m_page())
 		kvm_disable_largepages();
@@ -6371,10 +6388,12 @@ static __init int hardware_setup(void)
 		enable_pml = 0;
 
 	if (!enable_pml) {
+		pax_open_kernel();
 		kvm_x86_ops->slot_enable_log_dirty = NULL;
 		kvm_x86_ops->slot_disable_log_dirty = NULL;
 		kvm_x86_ops->flush_log_dirty = NULL;
 		kvm_x86_ops->enable_log_dirty_pt_masked = NULL;
+		pax_close_kernel();
 	}
 
 	kvm_set_posted_intr_wakeup_handler(wakeup_handler);
@@ -8705,6 +8724,12 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
 		"jmp 2f \n\t"
 		"1: " __ex(ASM_VMX_VMRESUME) "\n\t"
 		"2: "
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+		"ljmp %[cs],$3f\n\t"
+		"3: "
+#endif
+
 		/* Save guest registers, load host registers, keep flags */
 		"mov %0, %c[wordsize](%%" _ASM_SP ") \n\t"
 		"pop %0 \n\t"
@@ -8757,6 +8782,11 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
 #endif
 		[cr2]"i"(offsetof(struct vcpu_vmx, vcpu.arch.cr2)),
 		[wordsize]"i"(sizeof(ulong))
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+		,[cs]"i"(__KERNEL_CS)
+#endif
+
 	      : "cc", "memory"
 #ifdef CONFIG_X86_64
 		, "rax", "rbx", "rdi", "rsi"
@@ -8770,7 +8800,7 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
 	if (debugctlmsr)
 		update_debugctlmsr(debugctlmsr);
 
-#ifndef CONFIG_X86_64
+#ifdef CONFIG_X86_32
 	/*
 	 * The sysexit path does not restore ds/es, so we must set them to
 	 * a reasonable value ourselves.
@@ -8779,8 +8809,18 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
 	 * may be executed in interrupt context, which saves and restore segments
 	 * around it, nullifying its effect.
 	 */
-	loadsegment(ds, __USER_DS);
-	loadsegment(es, __USER_DS);
+	loadsegment(ds, __KERNEL_DS);
+	loadsegment(es, __KERNEL_DS);
+	loadsegment(ss, __KERNEL_DS);
+
+#ifdef CONFIG_PAX_KERNEXEC
+	loadsegment(fs, __KERNEL_PERCPU);
+#endif
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	__set_fs(current_thread_info()->addr_limit);
+#endif
+
 #endif
 
 	vcpu->arch.regs_avail = ~((1 << VCPU_REGS_RIP) | (1 << VCPU_REGS_RSP)
@@ -10889,7 +10929,7 @@ out:
 	return ret;
 }
 
-static struct kvm_x86_ops vmx_x86_ops = {
+static struct kvm_x86_ops vmx_x86_ops __read_only = {
 	.cpu_has_kvm_support = cpu_has_kvm_support,
 	.disabled_by_bios = vmx_disabled_by_bios,
 	.hardware_setup = hardware_setup,
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 6b9701b..86084df 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1945,8 +1945,8 @@ static int xen_hvm_config(struct kvm_vcpu *vcpu, u64 data)
 {
 	struct kvm *kvm = vcpu->kvm;
 	int lm = is_long_mode(vcpu);
-	u8 *blob_addr = lm ? (u8 *)(long)kvm->arch.xen_hvm_config.blob_addr_64
-		: (u8 *)(long)kvm->arch.xen_hvm_config.blob_addr_32;
+	u8 __user *blob_addr = lm ? (u8 __user *)(long)kvm->arch.xen_hvm_config.blob_addr_64
+		: (u8 __user *)(long)kvm->arch.xen_hvm_config.blob_addr_32;
 	u8 blob_size = lm ? kvm->arch.xen_hvm_config.blob_size_64
 		: kvm->arch.xen_hvm_config.blob_size_32;
 	u32 page_num = data & ~PAGE_MASK;
@@ -2647,6 +2647,8 @@ long kvm_arch_dev_ioctl(struct file *filp,
 		if (n < msr_list.nmsrs)
 			goto out;
 		r = -EFAULT;
+		if (num_msrs_to_save > ARRAY_SIZE(msrs_to_save))
+			goto out;
 		if (copy_to_user(user_msr_list->indices, &msrs_to_save,
 				 num_msrs_to_save * sizeof(u32)))
 			goto out;
@@ -3051,7 +3053,7 @@ static int kvm_vcpu_ioctl_x86_set_debugregs(struct kvm_vcpu *vcpu,
 
 static void fill_xsave(u8 *dest, struct kvm_vcpu *vcpu)
 {
-	struct xregs_state *xsave = &vcpu->arch.guest_fpu.state.xsave;
+	struct xregs_state *xsave = &vcpu->arch.guest_fpu.state->xsave;
 	u64 xstate_bv = xsave->header.xfeatures;
 	u64 valid;
 
@@ -3087,7 +3089,7 @@ static void fill_xsave(u8 *dest, struct kvm_vcpu *vcpu)
 
 static void load_xsave(struct kvm_vcpu *vcpu, u8 *src)
 {
-	struct xregs_state *xsave = &vcpu->arch.guest_fpu.state.xsave;
+	struct xregs_state *xsave = &vcpu->arch.guest_fpu.state->xsave;
 	u64 xstate_bv = *(u64 *)(src + XSAVE_HDR_OFFSET);
 	u64 valid;
 
@@ -3131,7 +3133,7 @@ static void kvm_vcpu_ioctl_x86_get_xsave(struct kvm_vcpu *vcpu,
 		fill_xsave((u8 *) guest_xsave->region, vcpu);
 	} else {
 		memcpy(guest_xsave->region,
-			&vcpu->arch.guest_fpu.state.fxsave,
+			&vcpu->arch.guest_fpu.state->fxsave,
 			sizeof(struct fxregs_state));
 		*(u64 *)&guest_xsave->region[XSAVE_HDR_OFFSET / sizeof(u32)] =
 			XFEATURE_MASK_FPSSE;
@@ -3156,7 +3158,7 @@ static int kvm_vcpu_ioctl_x86_set_xsave(struct kvm_vcpu *vcpu,
 	} else {
 		if (xstate_bv & ~XFEATURE_MASK_FPSSE)
 			return -EINVAL;
-		memcpy(&vcpu->arch.guest_fpu.state.fxsave,
+		memcpy(&vcpu->arch.guest_fpu.state->fxsave,
 			guest_xsave->region, sizeof(struct fxregs_state));
 	}
 	return 0;
@@ -6447,6 +6449,7 @@ void kvm_arch_mmu_notifier_invalidate_page(struct kvm *kvm,
  * exiting to the userspace.  Otherwise, the value will be returned to the
  * userspace.
  */
+static int vcpu_enter_guest(struct kvm_vcpu *vcpu) __must_hold(&vcpu->kvm->srcu);
 static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
 {
 	int r;
@@ -6717,6 +6720,7 @@ out:
 	return r;
 }
 
+static inline int vcpu_block(struct kvm *kvm, struct kvm_vcpu *vcpu) __must_hold(&kvm->srcu);
 static inline int vcpu_block(struct kvm *kvm, struct kvm_vcpu *vcpu)
 {
 	if (!kvm_arch_vcpu_runnable(vcpu) &&
@@ -7264,7 +7268,7 @@ int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
 int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
 {
 	struct fxregs_state *fxsave =
-			&vcpu->arch.guest_fpu.state.fxsave;
+			&vcpu->arch.guest_fpu.state->fxsave;
 
 	memcpy(fpu->fpr, fxsave->st_space, 128);
 	fpu->fcw = fxsave->cwd;
@@ -7281,7 +7285,7 @@ int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
 int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
 {
 	struct fxregs_state *fxsave =
-			&vcpu->arch.guest_fpu.state.fxsave;
+			&vcpu->arch.guest_fpu.state->fxsave;
 
 	memcpy(fxsave->st_space, fpu->fpr, 128);
 	fxsave->cwd = fpu->fcw;
@@ -7297,9 +7301,9 @@ int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
 
 static void fx_init(struct kvm_vcpu *vcpu)
 {
-	fpstate_init(&vcpu->arch.guest_fpu.state);
+	fpstate_init(vcpu->arch.guest_fpu.state);
 	if (cpu_has_xsaves)
-		vcpu->arch.guest_fpu.state.xsave.header.xcomp_bv =
+		vcpu->arch.guest_fpu.state->xsave.header.xcomp_bv =
 			host_xcr0 | XSTATE_COMPACTION_ENABLED;
 
 	/*
@@ -7322,7 +7326,7 @@ void kvm_load_guest_fpu(struct kvm_vcpu *vcpu)
 	 */
 	vcpu->guest_fpu_loaded = 1;
 	__kernel_fpu_begin();
-	__copy_kernel_to_fpregs(&vcpu->arch.guest_fpu.state);
+	__copy_kernel_to_fpregs(vcpu->arch.guest_fpu.state);
 	trace_kvm_fpu(1);
 }
 
@@ -7624,6 +7628,8 @@ bool kvm_vcpu_compatible(struct kvm_vcpu *vcpu)
 struct static_key kvm_no_apic_vcpu __read_mostly;
 EXPORT_SYMBOL_GPL(kvm_no_apic_vcpu);
 
+extern struct kmem_cache *fpregs_state_cachep;
+
 int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
 {
 	struct page *page;
@@ -7641,11 +7647,14 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
 	else
 		vcpu->arch.mp_state = KVM_MP_STATE_UNINITIALIZED;
 
-	page = alloc_page(GFP_KERNEL | __GFP_ZERO);
-	if (!page) {
-		r = -ENOMEM;
+	r = -ENOMEM;
+	vcpu->arch.guest_fpu.state = kmem_cache_alloc(fpregs_state_cachep, GFP_KERNEL);
+	if (!vcpu->arch.guest_fpu.state)
 		goto fail;
-	}
+
+	page = alloc_page(GFP_KERNEL | __GFP_ZERO);
+	if (!page)
+		goto fail_free_fpregs;
 	vcpu->arch.pio_data = page_address(page);
 
 	kvm_set_tsc_khz(vcpu, max_tsc_khz);
@@ -7703,6 +7712,9 @@ fail_mmu_destroy:
 	kvm_mmu_destroy(vcpu);
 fail_free_pio_data:
 	free_page((unsigned long)vcpu->arch.pio_data);
+fail_free_fpregs:
+	kmem_cache_free(fpregs_state_cachep, vcpu->arch.guest_fpu.state);
+	vcpu->arch.guest_fpu.state = NULL;
 fail:
 	return r;
 }
@@ -7721,6 +7733,8 @@ void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu)
 	free_page((unsigned long)vcpu->arch.pio_data);
 	if (!lapic_in_kernel(vcpu))
 		static_key_slow_dec(&kvm_no_apic_vcpu);
+	kmem_cache_free(fpregs_state_cachep, vcpu->arch.guest_fpu.state);
+	vcpu->arch.guest_fpu.state = NULL;
 }
 
 void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu)
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index fd57d3a..7e9ec76 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -1336,9 +1336,10 @@ static __init int early_put_chars(u32 vtermno, const char *buf, int count)
  * Rebooting also tells the Host we're finished, but the RESTART flag tells the
  * Launcher to reboot us.
  */
-static void lguest_restart(char *reason)
+static __noreturn void lguest_restart(char *reason)
 {
 	hcall(LHCALL_SHUTDOWN, __pa(reason), LGUEST_SHUTDOWN_RESTART, 0, 0);
+	BUG();
 }
 
 /*G:050
diff --git a/arch/x86/lib/atomic64_386_32.S b/arch/x86/lib/atomic64_386_32.S
index 9b0ca8f..bb4af41 100644
--- a/arch/x86/lib/atomic64_386_32.S
+++ b/arch/x86/lib/atomic64_386_32.S
@@ -45,6 +45,10 @@ BEGIN(read)
 	movl  (v), %eax
 	movl 4(v), %edx
 RET_ENDP
+BEGIN(read_unchecked)
+	movl  (v), %eax
+	movl 4(v), %edx
+RET_ENDP
 #undef v
 
 #define v %esi
@@ -52,6 +56,10 @@ BEGIN(set)
 	movl %ebx,  (v)
 	movl %ecx, 4(v)
 RET_ENDP
+BEGIN(set_unchecked)
+	movl %ebx,  (v)
+	movl %ecx, 4(v)
+RET_ENDP
 #undef v
 
 #define v  %esi
@@ -67,6 +75,20 @@ RET_ENDP
 BEGIN(add)
 	addl %eax,  (v)
 	adcl %edx, 4(v)
+
+#ifdef CONFIG_PAX_REFCOUNT
+	jno 0f
+	subl %eax,  (v)
+	sbbl %edx, 4(v)
+	int $4
+0:
+	_ASM_EXTABLE(0b, 0b)
+#endif
+
+RET_ENDP
+BEGIN(add_unchecked)
+	addl %eax,  (v)
+	adcl %edx, 4(v)
 RET_ENDP
 #undef v
 
@@ -74,6 +96,24 @@ RET_ENDP
 BEGIN(add_return)
 	addl  (v), %eax
 	adcl 4(v), %edx
+
+#ifdef CONFIG_PAX_REFCOUNT
+	into
+1234:
+	_ASM_EXTABLE(1234b, 2f)
+#endif
+
+	movl %eax,  (v)
+	movl %edx, 4(v)
+
+#ifdef CONFIG_PAX_REFCOUNT
+2:
+#endif
+
+RET_ENDP
+BEGIN(add_return_unchecked)
+	addl  (v), %eax
+	adcl 4(v), %edx
 	movl %eax,  (v)
 	movl %edx, 4(v)
 RET_ENDP
@@ -83,6 +123,20 @@ RET_ENDP
 BEGIN(sub)
 	subl %eax,  (v)
 	sbbl %edx, 4(v)
+
+#ifdef CONFIG_PAX_REFCOUNT
+	jno 0f
+	addl %eax,  (v)
+	adcl %edx, 4(v)
+	int $4
+0:
+	_ASM_EXTABLE(0b, 0b)
+#endif
+
+RET_ENDP
+BEGIN(sub_unchecked)
+	subl %eax,  (v)
+	sbbl %edx, 4(v)
 RET_ENDP
 #undef v
 
@@ -93,6 +147,27 @@ BEGIN(sub_return)
 	sbbl $0, %edx
 	addl  (v), %eax
 	adcl 4(v), %edx
+
+#ifdef CONFIG_PAX_REFCOUNT
+	into
+1234:
+	_ASM_EXTABLE(1234b, 2f)
+#endif
+
+	movl %eax,  (v)
+	movl %edx, 4(v)
+
+#ifdef CONFIG_PAX_REFCOUNT
+2:
+#endif
+
+RET_ENDP
+BEGIN(sub_return_unchecked)
+	negl %edx
+	negl %eax
+	sbbl $0, %edx
+	addl  (v), %eax
+	adcl 4(v), %edx
 	movl %eax,  (v)
 	movl %edx, 4(v)
 RET_ENDP
@@ -102,6 +177,20 @@ RET_ENDP
 BEGIN(inc)
 	addl $1,  (v)
 	adcl $0, 4(v)
+
+#ifdef CONFIG_PAX_REFCOUNT
+	jno 0f
+	subl $1,  (v)
+	sbbl $0, 4(v)
+	int $4
+0:
+	_ASM_EXTABLE(0b, 0b)
+#endif
+
+RET_ENDP
+BEGIN(inc_unchecked)
+	addl $1,  (v)
+	adcl $0, 4(v)
 RET_ENDP
 #undef v
 
@@ -111,6 +200,26 @@ BEGIN(inc_return)
 	movl 4(v), %edx
 	addl $1, %eax
 	adcl $0, %edx
+
+#ifdef CONFIG_PAX_REFCOUNT
+	into
+1234:
+	_ASM_EXTABLE(1234b, 2f)
+#endif
+
+	movl %eax,  (v)
+	movl %edx, 4(v)
+
+#ifdef CONFIG_PAX_REFCOUNT
+2:
+#endif
+
+RET_ENDP
+BEGIN(inc_return_unchecked)
+	movl  (v), %eax
+	movl 4(v), %edx
+	addl $1, %eax
+	adcl $0, %edx
 	movl %eax,  (v)
 	movl %edx, 4(v)
 RET_ENDP
@@ -120,6 +229,20 @@ RET_ENDP
 BEGIN(dec)
 	subl $1,  (v)
 	sbbl $0, 4(v)
+
+#ifdef CONFIG_PAX_REFCOUNT
+	jno 0f
+	addl $1,  (v)
+	adcl $0, 4(v)
+	int $4
+0:
+	_ASM_EXTABLE(0b, 0b)
+#endif
+
+RET_ENDP
+BEGIN(dec_unchecked)
+	subl $1,  (v)
+	sbbl $0, 4(v)
 RET_ENDP
 #undef v
 
@@ -129,6 +252,26 @@ BEGIN(dec_return)
 	movl 4(v), %edx
 	subl $1, %eax
 	sbbl $0, %edx
+
+#ifdef CONFIG_PAX_REFCOUNT
+	into
+1234:
+	_ASM_EXTABLE(1234b, 2f)
+#endif
+
+	movl %eax,  (v)
+	movl %edx, 4(v)
+
+#ifdef CONFIG_PAX_REFCOUNT
+2:
+#endif
+
+RET_ENDP
+BEGIN(dec_return_unchecked)
+	movl  (v), %eax
+	movl 4(v), %edx
+	subl $1, %eax
+	sbbl $0, %edx
 	movl %eax,  (v)
 	movl %edx, 4(v)
 RET_ENDP
@@ -140,6 +283,13 @@ BEGIN(add_unless)
 	adcl %edx, %edi
 	addl  (v), %eax
 	adcl 4(v), %edx
+
+#ifdef CONFIG_PAX_REFCOUNT
+	into
+1234:
+	_ASM_EXTABLE(1234b, 2f)
+#endif
+
 	cmpl %eax, %ecx
 	je 3f
 1:
@@ -165,6 +315,13 @@ BEGIN(inc_not_zero)
 1:
 	addl $1, %eax
 	adcl $0, %edx
+
+#ifdef CONFIG_PAX_REFCOUNT
+	into
+1234:
+	_ASM_EXTABLE(1234b, 2f)
+#endif
+
 	movl %eax,  (v)
 	movl %edx, 4(v)
 	movl $1, %eax
@@ -183,6 +340,13 @@ BEGIN(dec_if_positive)
 	movl 4(v), %edx
 	subl $1, %eax
 	sbbl $0, %edx
+
+#ifdef CONFIG_PAX_REFCOUNT
+	into
+1234:
+	_ASM_EXTABLE(1234b, 1f)
+#endif
+
 	js 1f
 	movl %eax,  (v)
 	movl %edx, 4(v)
diff --git a/arch/x86/lib/atomic64_cx8_32.S b/arch/x86/lib/atomic64_cx8_32.S
index db3ae854..b8ad0de 100644
--- a/arch/x86/lib/atomic64_cx8_32.S
+++ b/arch/x86/lib/atomic64_cx8_32.S
@@ -22,9 +22,16 @@
 
 ENTRY(atomic64_read_cx8)
 	read64 %ecx
+	pax_force_retaddr
 	ret
 ENDPROC(atomic64_read_cx8)
 
+ENTRY(atomic64_read_unchecked_cx8)
+	read64 %ecx
+	pax_force_retaddr
+	ret
+ENDPROC(atomic64_read_unchecked_cx8)
+
 ENTRY(atomic64_set_cx8)
 1:
 /* we don't need LOCK_PREFIX since aligned 64-bit writes
@@ -32,20 +39,33 @@ ENTRY(atomic64_set_cx8)
 	cmpxchg8b (%esi)
 	jne 1b
 
+	pax_force_retaddr
 	ret
 ENDPROC(atomic64_set_cx8)
 
+ENTRY(atomic64_set_unchecked_cx8)
+1:
+/* we don't need LOCK_PREFIX since aligned 64-bit writes
+ * are atomic on 586 and newer */
+	cmpxchg8b (%esi)
+	jne 1b
+
+	pax_force_retaddr
+	ret
+ENDPROC(atomic64_set_unchecked_cx8)
+
 ENTRY(atomic64_xchg_cx8)
 1:
 	LOCK_PREFIX
 	cmpxchg8b (%esi)
 	jne 1b
 
+	pax_force_retaddr
 	ret
 ENDPROC(atomic64_xchg_cx8)
 
-.macro addsub_return func ins insc
-ENTRY(atomic64_\func\()_return_cx8)
+.macro addsub_return func ins insc unchecked=""
+ENTRY(atomic64_\func\()_return\unchecked\()_cx8)
 	pushl %ebp
 	pushl %ebx
 	pushl %esi
@@ -61,26 +81,43 @@ ENTRY(atomic64_\func\()_return_cx8)
 	movl %edx, %ecx
 	\ins\()l %esi, %ebx
 	\insc\()l %edi, %ecx
+
+.ifb \unchecked
+#ifdef CONFIG_PAX_REFCOUNT
+	into
+2:
+	_ASM_EXTABLE(2b, 3f)
+#endif
+.endif
+
 	LOCK_PREFIX
 	cmpxchg8b (%ebp)
 	jne 1b
-
-10:
 	movl %ebx, %eax
 	movl %ecx, %edx
+
+.ifb \unchecked
+#ifdef CONFIG_PAX_REFCOUNT
+3:
+#endif
+.endif
+
 	popl %edi
 	popl %esi
 	popl %ebx
 	popl %ebp
+	pax_force_retaddr
 	ret
-ENDPROC(atomic64_\func\()_return_cx8)
+ENDPROC(atomic64_\func\()_return\unchecked\()_cx8)
 .endm
 
 addsub_return add add adc
 addsub_return sub sub sbb
+addsub_return add add adc _unchecked
+addsub_return sub sub sbb _unchecked
 
-.macro incdec_return func ins insc
-ENTRY(atomic64_\func\()_return_cx8)
+.macro incdec_return func ins insc unchecked=""
+ENTRY(atomic64_\func\()_return\unchecked\()_cx8)
 	pushl %ebx
 
 	read64 %esi
@@ -89,20 +126,37 @@ ENTRY(atomic64_\func\()_return_cx8)
 	movl %edx, %ecx
 	\ins\()l $1, %ebx
 	\insc\()l $0, %ecx
+
+.ifb \unchecked
+#ifdef CONFIG_PAX_REFCOUNT
+	into
+2:
+	_ASM_EXTABLE(2b, 3f)
+#endif
+.endif
+
 	LOCK_PREFIX
 	cmpxchg8b (%esi)
 	jne 1b
-
-10:
 	movl %ebx, %eax
 	movl %ecx, %edx
+
+.ifb \unchecked
+#ifdef CONFIG_PAX_REFCOUNT
+3:
+#endif
+.endif
+
 	popl %ebx
+	pax_force_retaddr
 	ret
-ENDPROC(atomic64_\func\()_return_cx8)
+ENDPROC(atomic64_\func\()_return\unchecked\()_cx8)
 .endm
 
 incdec_return inc add adc
 incdec_return dec sub sbb
+incdec_return inc add adc _unchecked
+incdec_return dec sub sbb _unchecked
 
 ENTRY(atomic64_dec_if_positive_cx8)
 	pushl %ebx
@@ -113,6 +167,13 @@ ENTRY(atomic64_dec_if_positive_cx8)
 	movl %edx, %ecx
 	subl $1, %ebx
 	sbb $0, %ecx
+
+#ifdef CONFIG_PAX_REFCOUNT
+	into
+1234:
+	_ASM_EXTABLE(1234b, 2f)
+#endif
+
 	js 2f
 	LOCK_PREFIX
 	cmpxchg8b (%esi)
@@ -122,6 +183,7 @@ ENTRY(atomic64_dec_if_positive_cx8)
 	movl %ebx, %eax
 	movl %ecx, %edx
 	popl %ebx
+	pax_force_retaddr
 	ret
 ENDPROC(atomic64_dec_if_positive_cx8)
 
@@ -144,6 +206,13 @@ ENTRY(atomic64_add_unless_cx8)
 	movl %edx, %ecx
 	addl %ebp, %ebx
 	adcl %edi, %ecx
+
+#ifdef CONFIG_PAX_REFCOUNT
+	into
+1234:
+	_ASM_EXTABLE(1234b, 3f)
+#endif
+
 	LOCK_PREFIX
 	cmpxchg8b (%esi)
 	jne 1b
@@ -153,6 +222,7 @@ ENTRY(atomic64_add_unless_cx8)
 	addl $8, %esp
 	popl %ebx
 	popl %ebp
+	pax_force_retaddr
 	ret
 4:
 	cmpl %edx, 4(%esp)
@@ -173,6 +243,13 @@ ENTRY(atomic64_inc_not_zero_cx8)
 	xorl %ecx, %ecx
 	addl $1, %ebx
 	adcl %edx, %ecx
+
+#ifdef CONFIG_PAX_REFCOUNT
+	into
+1234:
+	_ASM_EXTABLE(1234b, 3f)
+#endif
+
 	LOCK_PREFIX
 	cmpxchg8b (%esi)
 	jne 1b
@@ -180,5 +257,6 @@ ENTRY(atomic64_inc_not_zero_cx8)
 	movl $1, %eax
 3:
 	popl %ebx
+	pax_force_retaddr
 	ret
 ENDPROC(atomic64_inc_not_zero_cx8)
diff --git a/arch/x86/lib/checksum_32.S b/arch/x86/lib/checksum_32.S
index c1e6232..ebbeba7 100644
--- a/arch/x86/lib/checksum_32.S
+++ b/arch/x86/lib/checksum_32.S
@@ -28,7 +28,8 @@
 #include <linux/linkage.h>
 #include <asm/errno.h>
 #include <asm/asm.h>
-				
+#include <asm/segment.h>
+
 /*
  * computes a partial checksum, e.g. for TCP/UDP fragments
  */
@@ -280,7 +281,22 @@ unsigned int csum_partial_copy_generic (const char *src, char *dst,
 
 #define ARGBASE 16		
 #define FP		12
-		
+
+ENTRY(csum_partial_copy_generic_to_user)
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	pushl %gs
+	popl %es
+	jmp csum_partial_copy_generic
+#endif
+
+ENTRY(csum_partial_copy_generic_from_user)
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	pushl %gs
+	popl %ds
+#endif
+
 ENTRY(csum_partial_copy_generic)
 	subl  $4,%esp	
 	pushl %edi
@@ -299,7 +315,7 @@ ENTRY(csum_partial_copy_generic)
 	jmp 4f
 SRC(1:	movw (%esi), %bx	)
 	addl $2, %esi
-DST(	movw %bx, (%edi)	)
+DST(	movw %bx, %es:(%edi)	)
 	addl $2, %edi
 	addw %bx, %ax	
 	adcl $0, %eax
@@ -311,30 +327,30 @@ DST(	movw %bx, (%edi)	)
 SRC(1:	movl (%esi), %ebx	)
 SRC(	movl 4(%esi), %edx	)
 	adcl %ebx, %eax
-DST(	movl %ebx, (%edi)	)
+DST(	movl %ebx, %es:(%edi)	)
 	adcl %edx, %eax
-DST(	movl %edx, 4(%edi)	)
+DST(	movl %edx, %es:4(%edi)	)
 
 SRC(	movl 8(%esi), %ebx	)
 SRC(	movl 12(%esi), %edx	)
 	adcl %ebx, %eax
-DST(	movl %ebx, 8(%edi)	)
+DST(	movl %ebx, %es:8(%edi)	)
 	adcl %edx, %eax
-DST(	movl %edx, 12(%edi)	)
+DST(	movl %edx, %es:12(%edi)	)
 
 SRC(	movl 16(%esi), %ebx 	)
 SRC(	movl 20(%esi), %edx	)
 	adcl %ebx, %eax
-DST(	movl %ebx, 16(%edi)	)
+DST(	movl %ebx, %es:16(%edi)	)
 	adcl %edx, %eax
-DST(	movl %edx, 20(%edi)	)
+DST(	movl %edx, %es:20(%edi)	)
 
 SRC(	movl 24(%esi), %ebx	)
 SRC(	movl 28(%esi), %edx	)
 	adcl %ebx, %eax
-DST(	movl %ebx, 24(%edi)	)
+DST(	movl %ebx, %es:24(%edi)	)
 	adcl %edx, %eax
-DST(	movl %edx, 28(%edi)	)
+DST(	movl %edx, %es:28(%edi)	)
 
 	lea 32(%esi), %esi
 	lea 32(%edi), %edi
@@ -348,7 +364,7 @@ DST(	movl %edx, 28(%edi)	)
 	shrl $2, %edx			# This clears CF
 SRC(3:	movl (%esi), %ebx	)
 	adcl %ebx, %eax
-DST(	movl %ebx, (%edi)	)
+DST(	movl %ebx, %es:(%edi)	)
 	lea 4(%esi), %esi
 	lea 4(%edi), %edi
 	dec %edx
@@ -360,12 +376,12 @@ DST(	movl %ebx, (%edi)	)
 	jb 5f
 SRC(	movw (%esi), %cx	)
 	leal 2(%esi), %esi
-DST(	movw %cx, (%edi)	)
+DST(	movw %cx, %es:(%edi)	)
 	leal 2(%edi), %edi
 	je 6f
 	shll $16,%ecx
 SRC(5:	movb (%esi), %cl	)
-DST(	movb %cl, (%edi)	)
+DST(	movb %cl, %es:(%edi)	)
 6:	addl %ecx, %eax
 	adcl $0, %eax
 7:
@@ -376,7 +392,7 @@ DST(	movb %cl, (%edi)	)
 
 6001:
 	movl ARGBASE+20(%esp), %ebx	# src_err_ptr
-	movl $-EFAULT, (%ebx)
+	movl $-EFAULT, %ss:(%ebx)
 
 	# zero the complete destination - computing the rest
 	# is too much work 
@@ -389,34 +405,58 @@ DST(	movb %cl, (%edi)	)
 
 6002:
 	movl ARGBASE+24(%esp), %ebx	# dst_err_ptr
-	movl $-EFAULT,(%ebx)
+	movl $-EFAULT,%ss:(%ebx)
 	jmp 5000b
 
 .previous
 
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	pushl %ss
+	popl %ds
+	pushl %ss
+	popl %es
+#endif
+
 	popl %ebx
 	popl %esi
 	popl %edi
 	popl %ecx			# equivalent to addl $4,%esp
 	ret	
-ENDPROC(csum_partial_copy_generic)
+ENDPROC(csum_partial_copy_generic_to_user)
 
 #else
 
 /* Version for PentiumII/PPro */
 
 #define ROUND1(x) \
+	nop; nop; nop;				\
 	SRC(movl x(%esi), %ebx	)	;	\
 	addl %ebx, %eax			;	\
-	DST(movl %ebx, x(%edi)	)	; 
+	DST(movl %ebx, %es:x(%edi))	;
 
 #define ROUND(x) \
+	nop; nop; nop;				\
 	SRC(movl x(%esi), %ebx	)	;	\
 	adcl %ebx, %eax			;	\
-	DST(movl %ebx, x(%edi)	)	;
+	DST(movl %ebx, %es:x(%edi))	;
 
 #define ARGBASE 12
-		
+
+ENTRY(csum_partial_copy_generic_to_user)
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	pushl %gs
+	popl %es
+	jmp csum_partial_copy_generic
+#endif
+
+ENTRY(csum_partial_copy_generic_from_user)
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	pushl %gs
+	popl %ds
+#endif
+
 ENTRY(csum_partial_copy_generic)
 	pushl %ebx
 	pushl %edi
@@ -435,7 +475,7 @@ ENTRY(csum_partial_copy_generic)
 	subl %ebx, %edi  
 	lea  -1(%esi),%edx
 	andl $-32,%edx
-	lea 3f(%ebx,%ebx), %ebx
+	lea 3f(%ebx,%ebx,2), %ebx
 	testl %esi, %esi 
 	jmp *%ebx
 1:	addl $64,%esi
@@ -456,19 +496,19 @@ ENTRY(csum_partial_copy_generic)
 	jb 5f
 SRC(	movw (%esi), %dx         )
 	leal 2(%esi), %esi
-DST(	movw %dx, (%edi)         )
+DST(	movw %dx, %es:(%edi)     )
 	leal 2(%edi), %edi
 	je 6f
 	shll $16,%edx
 5:
 SRC(	movb (%esi), %dl         )
-DST(	movb %dl, (%edi)         )
+DST(	movb %dl, %es:(%edi)     )
 6:	addl %edx, %eax
 	adcl $0, %eax
 7:
 .section .fixup, "ax"
 6001:	movl	ARGBASE+20(%esp), %ebx	# src_err_ptr	
-	movl $-EFAULT, (%ebx)
+	movl $-EFAULT, %ss:(%ebx)
 	# zero the complete destination (computing the rest is too much work)
 	movl ARGBASE+8(%esp),%edi	# dst
 	movl ARGBASE+12(%esp),%ecx	# len
@@ -476,15 +516,22 @@ DST(	movb %dl, (%edi)         )
 	rep; stosb
 	jmp 7b
 6002:	movl ARGBASE+24(%esp), %ebx	# dst_err_ptr
-	movl $-EFAULT, (%ebx)
+	movl $-EFAULT, %ss:(%ebx)
 	jmp  7b			
 .previous				
 
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	pushl %ss
+	popl %ds
+	pushl %ss
+	popl %es
+#endif
+
 	popl %esi
 	popl %edi
 	popl %ebx
 	ret
-ENDPROC(csum_partial_copy_generic)
+ENDPROC(csum_partial_copy_generic_to_user)
 				
 #undef ROUND
 #undef ROUND1		
diff --git a/arch/x86/lib/clear_page_64.S b/arch/x86/lib/clear_page_64.S
index 65be7cf..d4cb4b4 100644
--- a/arch/x86/lib/clear_page_64.S
+++ b/arch/x86/lib/clear_page_64.S
@@ -21,6 +21,7 @@ ENTRY(clear_page)
 	movl $4096/8,%ecx
 	xorl %eax,%eax
 	rep stosq
+	pax_force_retaddr
 	ret
 ENDPROC(clear_page)
 
@@ -43,6 +44,7 @@ ENTRY(clear_page_orig)
 	leaq	64(%rdi),%rdi
 	jnz	.Lloop
 	nop
+	pax_force_retaddr
 	ret
 ENDPROC(clear_page_orig)
 
@@ -50,5 +52,6 @@ ENTRY(clear_page_c_e)
 	movl $4096,%ecx
 	xorl %eax,%eax
 	rep stosb
+	pax_force_retaddr
 	ret
 ENDPROC(clear_page_c_e)
diff --git a/arch/x86/lib/cmpxchg16b_emu.S b/arch/x86/lib/cmpxchg16b_emu.S
index 9b33024..e52ee44 100644
--- a/arch/x86/lib/cmpxchg16b_emu.S
+++ b/arch/x86/lib/cmpxchg16b_emu.S
@@ -7,6 +7,7 @@
  */
 #include <linux/linkage.h>
 #include <asm/percpu.h>
+#include <asm/alternative-asm.h>
 
 .text
 
@@ -43,11 +44,13 @@ ENTRY(this_cpu_cmpxchg16b_emu)
 
 	popfq
 	mov $1, %al
+	pax_force_retaddr
 	ret
 
 .Lnot_same:
 	popfq
 	xor %al,%al
+	pax_force_retaddr
 	ret
 
 ENDPROC(this_cpu_cmpxchg16b_emu)
diff --git a/arch/x86/lib/copy_page_64.S b/arch/x86/lib/copy_page_64.S
index 24ef1c2..a119ef1 100644
--- a/arch/x86/lib/copy_page_64.S
+++ b/arch/x86/lib/copy_page_64.S
@@ -15,13 +15,14 @@ ENTRY(copy_page)
 	ALTERNATIVE "jmp copy_page_regs", "", X86_FEATURE_REP_GOOD
 	movl	$4096/8, %ecx
 	rep	movsq
+	pax_force_retaddr
 	ret
 ENDPROC(copy_page)
 
 ENTRY(copy_page_regs)
 	subq	$2*8,	%rsp
 	movq	%rbx,	(%rsp)
-	movq	%r12,	1*8(%rsp)
+	movq	%r13,	1*8(%rsp)
 
 	movl	$(4096/64)-5,	%ecx
 	.p2align 4
@@ -34,7 +35,7 @@ ENTRY(copy_page_regs)
 	movq	0x8*4(%rsi), %r9
 	movq	0x8*5(%rsi), %r10
 	movq	0x8*6(%rsi), %r11
-	movq	0x8*7(%rsi), %r12
+	movq	0x8*7(%rsi), %r13
 
 	prefetcht0 5*64(%rsi)
 
@@ -45,7 +46,7 @@ ENTRY(copy_page_regs)
 	movq	%r9,  0x8*4(%rdi)
 	movq	%r10, 0x8*5(%rdi)
 	movq	%r11, 0x8*6(%rdi)
-	movq	%r12, 0x8*7(%rdi)
+	movq	%r13, 0x8*7(%rdi)
 
 	leaq	64 (%rsi), %rsi
 	leaq	64 (%rdi), %rdi
@@ -64,7 +65,7 @@ ENTRY(copy_page_regs)
 	movq	0x8*4(%rsi), %r9
 	movq	0x8*5(%rsi), %r10
 	movq	0x8*6(%rsi), %r11
-	movq	0x8*7(%rsi), %r12
+	movq	0x8*7(%rsi), %r13
 
 	movq	%rax, 0x8*0(%rdi)
 	movq	%rbx, 0x8*1(%rdi)
@@ -73,14 +74,15 @@ ENTRY(copy_page_regs)
 	movq	%r9,  0x8*4(%rdi)
 	movq	%r10, 0x8*5(%rdi)
 	movq	%r11, 0x8*6(%rdi)
-	movq	%r12, 0x8*7(%rdi)
+	movq	%r13, 0x8*7(%rdi)
 
 	leaq	64(%rdi), %rdi
 	leaq	64(%rsi), %rsi
 	jnz	.Loop2
 
 	movq	(%rsp), %rbx
-	movq	1*8(%rsp), %r12
+	movq	1*8(%rsp), %r13
 	addq	$2*8, %rsp
+	pax_force_retaddr
 	ret
 ENDPROC(copy_page_regs)
diff --git a/arch/x86/lib/copy_user_64.S b/arch/x86/lib/copy_user_64.S
index 2b0ef26..69c3c66 100644
--- a/arch/x86/lib/copy_user_64.S
+++ b/arch/x86/lib/copy_user_64.S
@@ -14,50 +14,7 @@
 #include <asm/alternative-asm.h>
 #include <asm/asm.h>
 #include <asm/smap.h>
-
-/* Standard copy_to_user with segment limit checking */
-ENTRY(_copy_to_user)
-	GET_THREAD_INFO(%rax)
-	movq %rdi,%rcx
-	addq %rdx,%rcx
-	jc bad_to_user
-	cmpq TI_addr_limit(%rax),%rcx
-	ja bad_to_user
-	ALTERNATIVE_2 "jmp copy_user_generic_unrolled",		\
-		      "jmp copy_user_generic_string",		\
-		      X86_FEATURE_REP_GOOD,			\
-		      "jmp copy_user_enhanced_fast_string",	\
-		      X86_FEATURE_ERMS
-ENDPROC(_copy_to_user)
-
-/* Standard copy_from_user with segment limit checking */
-ENTRY(_copy_from_user)
-	GET_THREAD_INFO(%rax)
-	movq %rsi,%rcx
-	addq %rdx,%rcx
-	jc bad_from_user
-	cmpq TI_addr_limit(%rax),%rcx
-	ja bad_from_user
-	ALTERNATIVE_2 "jmp copy_user_generic_unrolled",		\
-		      "jmp copy_user_generic_string",		\
-		      X86_FEATURE_REP_GOOD,			\
-		      "jmp copy_user_enhanced_fast_string",	\
-		      X86_FEATURE_ERMS
-ENDPROC(_copy_from_user)
-
-	.section .fixup,"ax"
-	/* must zero dest */
-ENTRY(bad_from_user)
-bad_from_user:
-	movl %edx,%ecx
-	xorl %eax,%eax
-	rep
-	stosb
-bad_to_user:
-	movl %edx,%eax
-	ret
-ENDPROC(bad_from_user)
-	.previous
+#include <asm/pgtable.h>
 
 /*
  * copy_user_generic_unrolled - memory copy with exception handling.
@@ -73,6 +30,7 @@ ENDPROC(bad_from_user)
  * eax uncopied bytes or 0 if successful.
  */
 ENTRY(copy_user_generic_unrolled)
+	ASM_PAX_OPEN_USERLAND
 	ASM_STAC
 	cmpl $8,%edx
 	jb 20f		/* less then 8 bytes, go to byte copy loop */
@@ -122,6 +80,8 @@ ENTRY(copy_user_generic_unrolled)
 	jnz 21b
 23:	xor %eax,%eax
 	ASM_CLAC
+	ASM_PAX_CLOSE_USERLAND
+	pax_force_retaddr
 	ret
 
 	.section .fixup,"ax"
@@ -175,6 +135,7 @@ ENDPROC(copy_user_generic_unrolled)
  * eax uncopied bytes or 0 if successful.
  */
 ENTRY(copy_user_generic_string)
+	ASM_PAX_OPEN_USERLAND
 	ASM_STAC
 	cmpl $8,%edx
 	jb 2f		/* less than 8 bytes, go to byte copy loop */
@@ -189,6 +150,8 @@ ENTRY(copy_user_generic_string)
 	movsb
 	xorl %eax,%eax
 	ASM_CLAC
+	ASM_PAX_CLOSE_USERLAND
+	pax_force_retaddr
 	ret
 
 	.section .fixup,"ax"
@@ -214,12 +177,15 @@ ENDPROC(copy_user_generic_string)
  * eax uncopied bytes or 0 if successful.
  */
 ENTRY(copy_user_enhanced_fast_string)
+	ASM_PAX_OPEN_USERLAND
 	ASM_STAC
 	movl %edx,%ecx
 1:	rep
 	movsb
 	xorl %eax,%eax
 	ASM_CLAC
+	ASM_PAX_CLOSE_USERLAND
+	pax_force_retaddr
 	ret
 
 	.section .fixup,"ax"
@@ -240,6 +206,16 @@ ENDPROC(copy_user_enhanced_fast_string)
  *  - Require 4-byte alignment when size is 4 bytes.
  */
 ENTRY(__copy_user_nocache)
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	mov pax_user_shadow_base,%rcx
+	cmp %rcx,%rsi
+	jae 1f
+	add %rcx,%rsi
+1:
+#endif
+
+	ASM_PAX_OPEN_USERLAND
 	ASM_STAC
 
 	/* If size is less than 8 bytes, go to 4-byte copy */
@@ -335,7 +311,9 @@ ENTRY(__copy_user_nocache)
 .L_finish_copy:
 	xorl %eax,%eax
 	ASM_CLAC
+	ASM_PAX_CLOSE_USERLAND
 	sfence
+	pax_force_retaddr
 	ret
 
 	.section .fixup,"ax"
diff --git a/arch/x86/lib/csum-copy_64.S b/arch/x86/lib/csum-copy_64.S
index 7e48807..cc966ff 100644
--- a/arch/x86/lib/csum-copy_64.S
+++ b/arch/x86/lib/csum-copy_64.S
@@ -8,6 +8,7 @@
 #include <linux/linkage.h>
 #include <asm/errno.h>
 #include <asm/asm.h>
+#include <asm/alternative-asm.h>
 
 /*
  * Checksum copy with exception handling.
@@ -52,7 +53,7 @@ ENTRY(csum_partial_copy_generic)
 .Lignore:
 	subq  $7*8, %rsp
 	movq  %rbx, 2*8(%rsp)
-	movq  %r12, 3*8(%rsp)
+	movq  %r15, 3*8(%rsp)
 	movq  %r14, 4*8(%rsp)
 	movq  %r13, 5*8(%rsp)
 	movq  %rbp, 6*8(%rsp)
@@ -64,16 +65,16 @@ ENTRY(csum_partial_copy_generic)
 	movl  %edx, %ecx
 
 	xorl  %r9d, %r9d
-	movq  %rcx, %r12
+	movq  %rcx, %r15
 
-	shrq  $6, %r12
+	shrq  $6, %r15
 	jz	.Lhandle_tail       /* < 64 */
 
 	clc
 
 	/* main loop. clear in 64 byte blocks */
 	/* r9: zero, r8: temp2, rbx: temp1, rax: sum, rcx: saved length */
-	/* r11:	temp3, rdx: temp4, r12 loopcnt */
+	/* r11:	temp3, rdx: temp4, r15 loopcnt */
 	/* r10:	temp5, rbp: temp6, r14 temp7, r13 temp8 */
 	.p2align 4
 .Lloop:
@@ -107,7 +108,7 @@ ENTRY(csum_partial_copy_generic)
 	adcq  %r14, %rax
 	adcq  %r13, %rax
 
-	decl %r12d
+	decl %r15d
 
 	dest
 	movq %rbx, (%rsi)
@@ -200,11 +201,12 @@ ENTRY(csum_partial_copy_generic)
 
 .Lende:
 	movq 2*8(%rsp), %rbx
-	movq 3*8(%rsp), %r12
+	movq 3*8(%rsp), %r15
 	movq 4*8(%rsp), %r14
 	movq 5*8(%rsp), %r13
 	movq 6*8(%rsp), %rbp
 	addq $7*8, %rsp
+	pax_force_retaddr
 	ret
 
 	/* Exception handlers. Very simple, zeroing is done in the wrappers */
diff --git a/arch/x86/lib/csum-wrappers_64.c b/arch/x86/lib/csum-wrappers_64.c
index 28a6654..e501fe8 100644
--- a/arch/x86/lib/csum-wrappers_64.c
+++ b/arch/x86/lib/csum-wrappers_64.c
@@ -52,10 +52,12 @@ csum_partial_copy_from_user(const void __user *src, void *dst,
 			len -= 2;
 		}
 	}
+	pax_open_userland();
 	stac();
-	isum = csum_partial_copy_generic((__force const void *)src,
+	isum = csum_partial_copy_generic((const void __force_kernel *)____m(src),
 				dst, len, isum, errp, NULL);
 	clac();
+	pax_close_userland();
 	if (unlikely(*errp))
 		goto out_err;
 
@@ -109,10 +111,12 @@ csum_partial_copy_to_user(const void *src, void __user *dst,
 	}
 
 	*errp = 0;
+	pax_open_userland();
 	stac();
-	ret = csum_partial_copy_generic(src, (void __force *)dst,
+	ret = csum_partial_copy_generic(src, (void __force_kernel *)____m(dst),
 					len, isum, NULL, errp);
 	clac();
+	pax_close_userland();
 	return ret;
 }
 EXPORT_SYMBOL(csum_partial_copy_to_user);
diff --git a/arch/x86/lib/getuser.S b/arch/x86/lib/getuser.S
index 46668cd..a3bdfb9 100644
--- a/arch/x86/lib/getuser.S
+++ b/arch/x86/lib/getuser.S
@@ -32,42 +32,93 @@
 #include <asm/thread_info.h>
 #include <asm/asm.h>
 #include <asm/smap.h>
+#include <asm/segment.h>
+#include <asm/pgtable.h>
+#include <asm/alternative-asm.h>
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
+#define __copyuser_seg gs;
+#else
+#define __copyuser_seg
+#endif
 
 	.text
 ENTRY(__get_user_1)
+
+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
 	GET_THREAD_INFO(%_ASM_DX)
 	cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
 	jae bad_get_user
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+	mov pax_user_shadow_base,%_ASM_DX
+	cmp %_ASM_DX,%_ASM_AX
+	jae 1234f
+	add %_ASM_DX,%_ASM_AX
+1234:
+#endif
+
+#endif
+
 	ASM_STAC
-1:	movzbl (%_ASM_AX),%edx
+1:	__copyuser_seg movzbl (%_ASM_AX),%edx
 	xor %eax,%eax
 	ASM_CLAC
+	pax_force_retaddr
 	ret
 ENDPROC(__get_user_1)
 
 ENTRY(__get_user_2)
 	add $1,%_ASM_AX
+
+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
 	jc bad_get_user
 	GET_THREAD_INFO(%_ASM_DX)
 	cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
 	jae bad_get_user
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+	mov pax_user_shadow_base,%_ASM_DX
+	cmp %_ASM_DX,%_ASM_AX
+	jae 1234f
+	add %_ASM_DX,%_ASM_AX
+1234:
+#endif
+
+#endif
+
 	ASM_STAC
-2:	movzwl -1(%_ASM_AX),%edx
+2:	__copyuser_seg movzwl -1(%_ASM_AX),%edx
 	xor %eax,%eax
 	ASM_CLAC
+	pax_force_retaddr
 	ret
 ENDPROC(__get_user_2)
 
 ENTRY(__get_user_4)
 	add $3,%_ASM_AX
+
+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
 	jc bad_get_user
 	GET_THREAD_INFO(%_ASM_DX)
 	cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
 	jae bad_get_user
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+	mov pax_user_shadow_base,%_ASM_DX
+	cmp %_ASM_DX,%_ASM_AX
+	jae 1234f
+	add %_ASM_DX,%_ASM_AX
+1234:
+#endif
+
+#endif
+
 	ASM_STAC
-3:	movl -3(%_ASM_AX),%edx
+3:	__copyuser_seg movl -3(%_ASM_AX),%edx
 	xor %eax,%eax
 	ASM_CLAC
+	pax_force_retaddr
 	ret
 ENDPROC(__get_user_4)
 
@@ -78,10 +129,20 @@ ENTRY(__get_user_8)
 	GET_THREAD_INFO(%_ASM_DX)
 	cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
 	jae bad_get_user
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+	mov pax_user_shadow_base,%_ASM_DX
+	cmp %_ASM_DX,%_ASM_AX
+	jae 1234f
+	add %_ASM_DX,%_ASM_AX
+1234:
+#endif
+
 	ASM_STAC
 4:	movq -7(%_ASM_AX),%rdx
 	xor %eax,%eax
 	ASM_CLAC
+	pax_force_retaddr
 	ret
 #else
 	add $7,%_ASM_AX
@@ -90,10 +151,11 @@ ENTRY(__get_user_8)
 	cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
 	jae bad_get_user_8
 	ASM_STAC
-4:	movl -7(%_ASM_AX),%edx
-5:	movl -3(%_ASM_AX),%ecx
+4:	__copyuser_seg movl -7(%_ASM_AX),%edx
+5:	__copyuser_seg movl -3(%_ASM_AX),%ecx
 	xor %eax,%eax
 	ASM_CLAC
+	pax_force_retaddr
 	ret
 #endif
 ENDPROC(__get_user_8)
@@ -103,6 +165,7 @@ bad_get_user:
 	xor %edx,%edx
 	mov $(-EFAULT),%_ASM_AX
 	ASM_CLAC
+	pax_force_retaddr
 	ret
 END(bad_get_user)
 
@@ -112,6 +175,7 @@ bad_get_user_8:
 	xor %ecx,%ecx
 	mov $(-EFAULT),%_ASM_AX
 	ASM_CLAC
+	pax_force_retaddr
 	ret
 END(bad_get_user_8)
 #endif
diff --git a/arch/x86/lib/insn.c b/arch/x86/lib/insn.c
index 1a41693..16eb00c 100644
--- a/arch/x86/lib/insn.c
+++ b/arch/x86/lib/insn.c
@@ -20,8 +20,10 @@
 
 #ifdef __KERNEL__
 #include <linux/string.h>
+#include <asm/pgtable_types.h>
 #else
 #include <string.h>
+#define ktla_ktva(addr) addr
 #endif
 #include <asm/inat.h>
 #include <asm/insn.h>
@@ -60,9 +62,9 @@ void insn_init(struct insn *insn, const void *kaddr, int buf_len, int x86_64)
 		buf_len = MAX_INSN_SIZE;
 
 	memset(insn, 0, sizeof(*insn));
-	insn->kaddr = kaddr;
-	insn->end_kaddr = kaddr + buf_len;
-	insn->next_byte = kaddr;
+	insn->kaddr = (void *)ktla_ktva((unsigned long)kaddr);
+	insn->end_kaddr = insn->kaddr + buf_len;
+	insn->next_byte = insn->kaddr;
 	insn->x86_64 = x86_64 ? 1 : 0;
 	insn->opnd_bytes = 4;
 	if (x86_64)
diff --git a/arch/x86/lib/iomap_copy_64.S b/arch/x86/lib/iomap_copy_64.S
index 33147fe..12a8815 100644
--- a/arch/x86/lib/iomap_copy_64.S
+++ b/arch/x86/lib/iomap_copy_64.S
@@ -16,6 +16,7 @@
  */
 
 #include <linux/linkage.h>
+#include <asm/alternative-asm.h>
 
 /*
  * override generic version in lib/iomap_copy.c
@@ -23,5 +24,6 @@
 ENTRY(__iowrite32_copy)
 	movl %edx,%ecx
 	rep movsd
+	pax_force_retaddr
 	ret
 ENDPROC(__iowrite32_copy)
diff --git a/arch/x86/lib/memcpy_64.S b/arch/x86/lib/memcpy_64.S
index 2ec0b0abb..3e02ccd 100644
--- a/arch/x86/lib/memcpy_64.S
+++ b/arch/x86/lib/memcpy_64.S
@@ -37,6 +37,7 @@ ENTRY(memcpy)
 	rep movsq
 	movl %edx, %ecx
 	rep movsb
+	pax_force_retaddr
 	ret
 ENDPROC(memcpy)
 ENDPROC(__memcpy)
@@ -49,6 +50,7 @@ ENTRY(memcpy_erms)
 	movq %rdi, %rax
 	movq %rdx, %rcx
 	rep movsb
+	pax_force_retaddr
 	ret
 ENDPROC(memcpy_erms)
 
@@ -133,6 +135,7 @@ ENTRY(memcpy_orig)
 	movq %r9,	1*8(%rdi)
 	movq %r10,	-2*8(%rdi, %rdx)
 	movq %r11,	-1*8(%rdi, %rdx)
+	pax_force_retaddr
 	retq
 	.p2align 4
 .Lless_16bytes:
@@ -145,6 +148,7 @@ ENTRY(memcpy_orig)
 	movq -1*8(%rsi, %rdx),	%r9
 	movq %r8,	0*8(%rdi)
 	movq %r9,	-1*8(%rdi, %rdx)
+	pax_force_retaddr
 	retq
 	.p2align 4
 .Lless_8bytes:
@@ -158,6 +162,7 @@ ENTRY(memcpy_orig)
 	movl -4(%rsi, %rdx), %r8d
 	movl %ecx, (%rdi)
 	movl %r8d, -4(%rdi, %rdx)
+	pax_force_retaddr
 	retq
 	.p2align 4
 .Lless_3bytes:
@@ -176,6 +181,7 @@ ENTRY(memcpy_orig)
 	movb %cl, (%rdi)
 
 .Lend:
+	pax_force_retaddr
 	retq
 ENDPROC(memcpy_orig)
 
diff --git a/arch/x86/lib/memmove_64.S b/arch/x86/lib/memmove_64.S
index 90ce01b..8817b34 100644
--- a/arch/x86/lib/memmove_64.S
+++ b/arch/x86/lib/memmove_64.S
@@ -41,7 +41,7 @@ ENTRY(__memmove)
 	jg 2f
 
 .Lmemmove_begin_forward:
-	ALTERNATIVE "", "movq %rdx, %rcx; rep movsb; retq", X86_FEATURE_ERMS
+	ALTERNATIVE "", "movq %rdx, %rcx; rep movsb; pax_force_retaddr; retq", X86_FEATURE_ERMS
 
 	/*
 	 * movsq instruction have many startup latency
@@ -204,6 +204,7 @@ ENTRY(__memmove)
 	movb (%rsi), %r11b
 	movb %r11b, (%rdi)
 13:
+	pax_force_retaddr
 	retq
 ENDPROC(__memmove)
 ENDPROC(memmove)
diff --git a/arch/x86/lib/memset_64.S b/arch/x86/lib/memset_64.S
index e1229ec..2ca5a7a 100644
--- a/arch/x86/lib/memset_64.S
+++ b/arch/x86/lib/memset_64.S
@@ -40,6 +40,7 @@ ENTRY(__memset)
 	movl %edx,%ecx
 	rep stosb
 	movq %r9,%rax
+	pax_force_retaddr
 	ret
 ENDPROC(memset)
 ENDPROC(__memset)
@@ -61,6 +62,7 @@ ENTRY(memset_erms)
 	movq %rdx,%rcx
 	rep stosb
 	movq %r9,%rax
+	pax_force_retaddr
 	ret
 ENDPROC(memset_erms)
 
@@ -123,6 +125,7 @@ ENTRY(memset_orig)
 
 .Lende:
 	movq	%r10,%rax
+	pax_force_retaddr
 	ret
 
 .Lbad_alignment:
diff --git a/arch/x86/lib/mmx_32.c b/arch/x86/lib/mmx_32.c
index e5e3ed8..d7c08c2 100644
--- a/arch/x86/lib/mmx_32.c
+++ b/arch/x86/lib/mmx_32.c
@@ -29,6 +29,7 @@ void *_mmx_memcpy(void *to, const void *from, size_t len)
 {
 	void *p;
 	int i;
+	unsigned long cr0;
 
 	if (unlikely(in_interrupt()))
 		return __memcpy(to, from, len);
@@ -39,44 +40,72 @@ void *_mmx_memcpy(void *to, const void *from, size_t len)
 	kernel_fpu_begin();
 
 	__asm__ __volatile__ (
-		"1: prefetch (%0)\n"		/* This set is 28 bytes */
-		"   prefetch 64(%0)\n"
-		"   prefetch 128(%0)\n"
-		"   prefetch 192(%0)\n"
-		"   prefetch 256(%0)\n"
+		"1: prefetch (%1)\n"		/* This set is 28 bytes */
+		"   prefetch 64(%1)\n"
+		"   prefetch 128(%1)\n"
+		"   prefetch 192(%1)\n"
+		"   prefetch 256(%1)\n"
 		"2:  \n"
 		".section .fixup, \"ax\"\n"
-		"3: movw $0x1AEB, 1b\n"	/* jmp on 26 bytes */
+		"3:  \n"
+
+#ifdef CONFIG_PAX_KERNEXEC
+		"   movl %%cr0, %0\n"
+		"   movl %0, %%eax\n"
+		"   andl $0xFFFEFFFF, %%eax\n"
+		"   movl %%eax, %%cr0\n"
+#endif
+
+		"   movw $0x1AEB, 1b\n"	/* jmp on 26 bytes */
+
+#ifdef CONFIG_PAX_KERNEXEC
+		"   movl %0, %%cr0\n"
+#endif
+
 		"   jmp 2b\n"
 		".previous\n"
 			_ASM_EXTABLE(1b, 3b)
-			: : "r" (from));
+			: "=&r" (cr0) : "r" (from) : "ax");
 
 	for ( ; i > 5; i--) {
 		__asm__ __volatile__ (
-		"1:  prefetch 320(%0)\n"
-		"2:  movq (%0), %%mm0\n"
-		"  movq 8(%0), %%mm1\n"
-		"  movq 16(%0), %%mm2\n"
-		"  movq 24(%0), %%mm3\n"
-		"  movq %%mm0, (%1)\n"
-		"  movq %%mm1, 8(%1)\n"
-		"  movq %%mm2, 16(%1)\n"
-		"  movq %%mm3, 24(%1)\n"
-		"  movq 32(%0), %%mm0\n"
-		"  movq 40(%0), %%mm1\n"
-		"  movq 48(%0), %%mm2\n"
-		"  movq 56(%0), %%mm3\n"
-		"  movq %%mm0, 32(%1)\n"
-		"  movq %%mm1, 40(%1)\n"
-		"  movq %%mm2, 48(%1)\n"
-		"  movq %%mm3, 56(%1)\n"
+		"1:  prefetch 320(%1)\n"
+		"2:  movq (%1), %%mm0\n"
+		"  movq 8(%1), %%mm1\n"
+		"  movq 16(%1), %%mm2\n"
+		"  movq 24(%1), %%mm3\n"
+		"  movq %%mm0, (%2)\n"
+		"  movq %%mm1, 8(%2)\n"
+		"  movq %%mm2, 16(%2)\n"
+		"  movq %%mm3, 24(%2)\n"
+		"  movq 32(%1), %%mm0\n"
+		"  movq 40(%1), %%mm1\n"
+		"  movq 48(%1), %%mm2\n"
+		"  movq 56(%1), %%mm3\n"
+		"  movq %%mm0, 32(%2)\n"
+		"  movq %%mm1, 40(%2)\n"
+		"  movq %%mm2, 48(%2)\n"
+		"  movq %%mm3, 56(%2)\n"
 		".section .fixup, \"ax\"\n"
-		"3: movw $0x05EB, 1b\n"	/* jmp on 5 bytes */
+		"3:\n"
+
+#ifdef CONFIG_PAX_KERNEXEC
+		"   movl %%cr0, %0\n"
+		"   movl %0, %%eax\n"
+		"   andl $0xFFFEFFFF, %%eax\n"
+		"   movl %%eax, %%cr0\n"
+#endif
+
+		"   movw $0x05EB, 1b\n"	/* jmp on 5 bytes */
+
+#ifdef CONFIG_PAX_KERNEXEC
+		"   movl %0, %%cr0\n"
+#endif
+
 		"   jmp 2b\n"
 		".previous\n"
 			_ASM_EXTABLE(1b, 3b)
-			: : "r" (from), "r" (to) : "memory");
+			: "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax");
 
 		from += 64;
 		to += 64;
@@ -158,6 +187,7 @@ static void fast_clear_page(void *page)
 static void fast_copy_page(void *to, void *from)
 {
 	int i;
+	unsigned long cr0;
 
 	kernel_fpu_begin();
 
@@ -166,42 +196,70 @@ static void fast_copy_page(void *to, void *from)
 	 * but that is for later. -AV
 	 */
 	__asm__ __volatile__(
-		"1: prefetch (%0)\n"
-		"   prefetch 64(%0)\n"
-		"   prefetch 128(%0)\n"
-		"   prefetch 192(%0)\n"
-		"   prefetch 256(%0)\n"
+		"1: prefetch (%1)\n"
+		"   prefetch 64(%1)\n"
+		"   prefetch 128(%1)\n"
+		"   prefetch 192(%1)\n"
+		"   prefetch 256(%1)\n"
 		"2:  \n"
 		".section .fixup, \"ax\"\n"
-		"3: movw $0x1AEB, 1b\n"	/* jmp on 26 bytes */
+		"3:  \n"
+
+#ifdef CONFIG_PAX_KERNEXEC
+		"   movl %%cr0, %0\n"
+		"   movl %0, %%eax\n"
+		"   andl $0xFFFEFFFF, %%eax\n"
+		"   movl %%eax, %%cr0\n"
+#endif
+
+		"   movw $0x1AEB, 1b\n"	/* jmp on 26 bytes */
+
+#ifdef CONFIG_PAX_KERNEXEC
+		"   movl %0, %%cr0\n"
+#endif
+
 		"   jmp 2b\n"
 		".previous\n"
-			_ASM_EXTABLE(1b, 3b) : : "r" (from));
+			_ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from) : "ax");
 
 	for (i = 0; i < (4096-320)/64; i++) {
 		__asm__ __volatile__ (
-		"1: prefetch 320(%0)\n"
-		"2: movq (%0), %%mm0\n"
-		"   movntq %%mm0, (%1)\n"
-		"   movq 8(%0), %%mm1\n"
-		"   movntq %%mm1, 8(%1)\n"
-		"   movq 16(%0), %%mm2\n"
-		"   movntq %%mm2, 16(%1)\n"
-		"   movq 24(%0), %%mm3\n"
-		"   movntq %%mm3, 24(%1)\n"
-		"   movq 32(%0), %%mm4\n"
-		"   movntq %%mm4, 32(%1)\n"
-		"   movq 40(%0), %%mm5\n"
-		"   movntq %%mm5, 40(%1)\n"
-		"   movq 48(%0), %%mm6\n"
-		"   movntq %%mm6, 48(%1)\n"
-		"   movq 56(%0), %%mm7\n"
-		"   movntq %%mm7, 56(%1)\n"
+		"1: prefetch 320(%1)\n"
+		"2: movq (%1), %%mm0\n"
+		"   movntq %%mm0, (%2)\n"
+		"   movq 8(%1), %%mm1\n"
+		"   movntq %%mm1, 8(%2)\n"
+		"   movq 16(%1), %%mm2\n"
+		"   movntq %%mm2, 16(%2)\n"
+		"   movq 24(%1), %%mm3\n"
+		"   movntq %%mm3, 24(%2)\n"
+		"   movq 32(%1), %%mm4\n"
+		"   movntq %%mm4, 32(%2)\n"
+		"   movq 40(%1), %%mm5\n"
+		"   movntq %%mm5, 40(%2)\n"
+		"   movq 48(%1), %%mm6\n"
+		"   movntq %%mm6, 48(%2)\n"
+		"   movq 56(%1), %%mm7\n"
+		"   movntq %%mm7, 56(%2)\n"
 		".section .fixup, \"ax\"\n"
-		"3: movw $0x05EB, 1b\n"	/* jmp on 5 bytes */
+		"3:\n"
+
+#ifdef CONFIG_PAX_KERNEXEC
+		"   movl %%cr0, %0\n"
+		"   movl %0, %%eax\n"
+		"   andl $0xFFFEFFFF, %%eax\n"
+		"   movl %%eax, %%cr0\n"
+#endif
+
+		"   movw $0x05EB, 1b\n"	/* jmp on 5 bytes */
+
+#ifdef CONFIG_PAX_KERNEXEC
+		"   movl %0, %%cr0\n"
+#endif
+
 		"   jmp 2b\n"
 		".previous\n"
-		_ASM_EXTABLE(1b, 3b) : : "r" (from), "r" (to) : "memory");
+		_ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax");
 
 		from += 64;
 		to += 64;
@@ -280,47 +338,76 @@ static void fast_clear_page(void *page)
 static void fast_copy_page(void *to, void *from)
 {
 	int i;
+	unsigned long cr0;
 
 	kernel_fpu_begin();
 
 	__asm__ __volatile__ (
-		"1: prefetch (%0)\n"
-		"   prefetch 64(%0)\n"
-		"   prefetch 128(%0)\n"
-		"   prefetch 192(%0)\n"
-		"   prefetch 256(%0)\n"
+		"1: prefetch (%1)\n"
+		"   prefetch 64(%1)\n"
+		"   prefetch 128(%1)\n"
+		"   prefetch 192(%1)\n"
+		"   prefetch 256(%1)\n"
 		"2:  \n"
 		".section .fixup, \"ax\"\n"
-		"3: movw $0x1AEB, 1b\n"	/* jmp on 26 bytes */
+		"3:  \n"
+
+#ifdef CONFIG_PAX_KERNEXEC
+		"   movl %%cr0, %0\n"
+		"   movl %0, %%eax\n"
+		"   andl $0xFFFEFFFF, %%eax\n"
+		"   movl %%eax, %%cr0\n"
+#endif
+
+		"   movw $0x1AEB, 1b\n"	/* jmp on 26 bytes */
+
+#ifdef CONFIG_PAX_KERNEXEC
+		"   movl %0, %%cr0\n"
+#endif
+
 		"   jmp 2b\n"
 		".previous\n"
-			_ASM_EXTABLE(1b, 3b) : : "r" (from));
+			_ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from) : "ax");
 
 	for (i = 0; i < 4096/64; i++) {
 		__asm__ __volatile__ (
-		"1: prefetch 320(%0)\n"
-		"2: movq (%0), %%mm0\n"
-		"   movq 8(%0), %%mm1\n"
-		"   movq 16(%0), %%mm2\n"
-		"   movq 24(%0), %%mm3\n"
-		"   movq %%mm0, (%1)\n"
-		"   movq %%mm1, 8(%1)\n"
-		"   movq %%mm2, 16(%1)\n"
-		"   movq %%mm3, 24(%1)\n"
-		"   movq 32(%0), %%mm0\n"
-		"   movq 40(%0), %%mm1\n"
-		"   movq 48(%0), %%mm2\n"
-		"   movq 56(%0), %%mm3\n"
-		"   movq %%mm0, 32(%1)\n"
-		"   movq %%mm1, 40(%1)\n"
-		"   movq %%mm2, 48(%1)\n"
-		"   movq %%mm3, 56(%1)\n"
+		"1: prefetch 320(%1)\n"
+		"2: movq (%1), %%mm0\n"
+		"   movq 8(%1), %%mm1\n"
+		"   movq 16(%1), %%mm2\n"
+		"   movq 24(%1), %%mm3\n"
+		"   movq %%mm0, (%2)\n"
+		"   movq %%mm1, 8(%2)\n"
+		"   movq %%mm2, 16(%2)\n"
+		"   movq %%mm3, 24(%2)\n"
+		"   movq 32(%1), %%mm0\n"
+		"   movq 40(%1), %%mm1\n"
+		"   movq 48(%1), %%mm2\n"
+		"   movq 56(%1), %%mm3\n"
+		"   movq %%mm0, 32(%2)\n"
+		"   movq %%mm1, 40(%2)\n"
+		"   movq %%mm2, 48(%2)\n"
+		"   movq %%mm3, 56(%2)\n"
 		".section .fixup, \"ax\"\n"
-		"3: movw $0x05EB, 1b\n"	/* jmp on 5 bytes */
+		"3:\n"
+
+#ifdef CONFIG_PAX_KERNEXEC
+		"   movl %%cr0, %0\n"
+		"   movl %0, %%eax\n"
+		"   andl $0xFFFEFFFF, %%eax\n"
+		"   movl %%eax, %%cr0\n"
+#endif
+
+		"   movw $0x05EB, 1b\n"	/* jmp on 5 bytes */
+
+#ifdef CONFIG_PAX_KERNEXEC
+		"   movl %0, %%cr0\n"
+#endif
+
 		"   jmp 2b\n"
 		".previous\n"
 			_ASM_EXTABLE(1b, 3b)
-			: : "r" (from), "r" (to) : "memory");
+			: "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax");
 
 		from += 64;
 		to += 64;
diff --git a/arch/x86/lib/msr-reg.S b/arch/x86/lib/msr-reg.S
index c815564..303dcfa 100644
--- a/arch/x86/lib/msr-reg.S
+++ b/arch/x86/lib/msr-reg.S
@@ -2,6 +2,7 @@
 #include <linux/errno.h>
 #include <asm/asm.h>
 #include <asm/msr.h>
+#include <asm/alternative-asm.h>
 
 #ifdef CONFIG_X86_64
 /*
@@ -34,6 +35,7 @@ ENTRY(\op\()_safe_regs)
 	movl    %edi, 28(%r10)
 	popq %rbp
 	popq %rbx
+	pax_force_retaddr
 	ret
 3:
 	movl    $-EIO, %r11d
diff --git a/arch/x86/lib/putuser.S b/arch/x86/lib/putuser.S
index e0817a1..bc9cf66 100644
--- a/arch/x86/lib/putuser.S
+++ b/arch/x86/lib/putuser.S
@@ -15,7 +15,9 @@
 #include <asm/errno.h>
 #include <asm/asm.h>
 #include <asm/smap.h>
-
+#include <asm/segment.h>
+#include <asm/pgtable.h>
+#include <asm/alternative-asm.h>
 
 /*
  * __put_user_X
@@ -29,55 +31,124 @@
  * as they get called from within inline assembly.
  */
 
-#define ENTER	GET_THREAD_INFO(%_ASM_BX)
-#define EXIT	ASM_CLAC ;	\
+#define ENTER
+#define EXIT	ASM_CLAC ;		\
+		pax_force_retaddr ;	\
 		ret
 
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+#define _DEST %_ASM_CX,%_ASM_BX
+#else
+#define _DEST %_ASM_CX
+#endif
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
+#define __copyuser_seg gs;
+#else
+#define __copyuser_seg
+#endif
+
 .text
 ENTRY(__put_user_1)
 	ENTER
+
+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
+	GET_THREAD_INFO(%_ASM_BX)
 	cmp TI_addr_limit(%_ASM_BX),%_ASM_CX
 	jae bad_put_user
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+	mov pax_user_shadow_base,%_ASM_BX
+	cmp %_ASM_BX,%_ASM_CX
+	jb 1234f
+	xor %ebx,%ebx
+1234:
+#endif
+
+#endif
+
 	ASM_STAC
-1:	movb %al,(%_ASM_CX)
+1:	__copyuser_seg movb %al,(_DEST)
 	xor %eax,%eax
 	EXIT
 ENDPROC(__put_user_1)
 
 ENTRY(__put_user_2)
 	ENTER
+
+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
+	GET_THREAD_INFO(%_ASM_BX)
 	mov TI_addr_limit(%_ASM_BX),%_ASM_BX
 	sub $1,%_ASM_BX
 	cmp %_ASM_BX,%_ASM_CX
 	jae bad_put_user
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+	mov pax_user_shadow_base,%_ASM_BX
+	cmp %_ASM_BX,%_ASM_CX
+	jb 1234f
+	xor %ebx,%ebx
+1234:
+#endif
+
+#endif
+
 	ASM_STAC
-2:	movw %ax,(%_ASM_CX)
+2:	__copyuser_seg movw %ax,(_DEST)
 	xor %eax,%eax
 	EXIT
 ENDPROC(__put_user_2)
 
 ENTRY(__put_user_4)
 	ENTER
+
+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
+	GET_THREAD_INFO(%_ASM_BX)
 	mov TI_addr_limit(%_ASM_BX),%_ASM_BX
 	sub $3,%_ASM_BX
 	cmp %_ASM_BX,%_ASM_CX
 	jae bad_put_user
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+	mov pax_user_shadow_base,%_ASM_BX
+	cmp %_ASM_BX,%_ASM_CX
+	jb 1234f
+	xor %ebx,%ebx
+1234:
+#endif
+
+#endif
+
 	ASM_STAC
-3:	movl %eax,(%_ASM_CX)
+3:	__copyuser_seg movl %eax,(_DEST)
 	xor %eax,%eax
 	EXIT
 ENDPROC(__put_user_4)
 
 ENTRY(__put_user_8)
 	ENTER
+
+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
+	GET_THREAD_INFO(%_ASM_BX)
 	mov TI_addr_limit(%_ASM_BX),%_ASM_BX
 	sub $7,%_ASM_BX
 	cmp %_ASM_BX,%_ASM_CX
 	jae bad_put_user
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+	mov pax_user_shadow_base,%_ASM_BX
+	cmp %_ASM_BX,%_ASM_CX
+	jb 1234f
+	xor %ebx,%ebx
+1234:
+#endif
+
+#endif
+
 	ASM_STAC
-4:	mov %_ASM_AX,(%_ASM_CX)
+4:	__copyuser_seg mov %_ASM_AX,(_DEST)
 #ifdef CONFIG_X86_32
-5:	movl %edx,4(%_ASM_CX)
+5:	__copyuser_seg movl %edx,4(_DEST)
 #endif
 	xor %eax,%eax
 	EXIT
diff --git a/arch/x86/lib/rwsem.S b/arch/x86/lib/rwsem.S
index be110ef..6728d71 100644
--- a/arch/x86/lib/rwsem.S
+++ b/arch/x86/lib/rwsem.S
@@ -93,6 +93,7 @@ ENTRY(call_rwsem_down_read_failed)
 	__ASM_SIZE(pop,) %__ASM_REG(dx)
 	restore_common_regs
 	FRAME_END
+	pax_force_retaddr
 	ret
 ENDPROC(call_rwsem_down_read_failed)
 
@@ -103,6 +104,7 @@ ENTRY(call_rwsem_down_write_failed)
 	call rwsem_down_write_failed
 	restore_common_regs
 	FRAME_END
+	pax_force_retaddr
 	ret
 ENDPROC(call_rwsem_down_write_failed)
 
@@ -116,6 +118,7 @@ ENTRY(call_rwsem_wake)
 	call rwsem_wake
 	restore_common_regs
 1:	FRAME_END
+	pax_force_retaddr
 	ret
 ENDPROC(call_rwsem_wake)
 
@@ -128,5 +131,6 @@ ENTRY(call_rwsem_downgrade_wake)
 	__ASM_SIZE(pop,) %__ASM_REG(dx)
 	restore_common_regs
 	FRAME_END
+	pax_force_retaddr
 	ret
 ENDPROC(call_rwsem_downgrade_wake)
diff --git a/arch/x86/lib/usercopy_32.c b/arch/x86/lib/usercopy_32.c
index 91d93b9..4b22130 100644
--- a/arch/x86/lib/usercopy_32.c
+++ b/arch/x86/lib/usercopy_32.c
@@ -42,11 +42,13 @@ do {									\
 	int __d0;							\
 	might_fault();							\
 	__asm__ __volatile__(						\
+		__COPYUSER_SET_ES					\
 		ASM_STAC "\n"						\
 		"0:	rep; stosl\n"					\
 		"	movl %2,%0\n"					\
 		"1:	rep; stosb\n"					\
 		"2: " ASM_CLAC "\n"					\
+		__COPYUSER_RESTORE_ES					\
 		".section .fixup,\"ax\"\n"				\
 		"3:	lea 0(%2,%0,4),%0\n"				\
 		"	jmp 2b\n"					\
@@ -98,7 +100,7 @@ EXPORT_SYMBOL(__clear_user);
 
 #ifdef CONFIG_X86_INTEL_USERCOPY
 static unsigned long
-__copy_user_intel(void __user *to, const void *from, unsigned long size)
+__generic_copy_to_user_intel(void __user *to, const void *from, unsigned long size)
 {
 	int d0, d1;
 	__asm__ __volatile__(
@@ -110,36 +112,36 @@ __copy_user_intel(void __user *to, const void *from, unsigned long size)
 		       "       .align 2,0x90\n"
 		       "3:     movl 0(%4), %%eax\n"
 		       "4:     movl 4(%4), %%edx\n"
-		       "5:     movl %%eax, 0(%3)\n"
-		       "6:     movl %%edx, 4(%3)\n"
+		       "5:     "__copyuser_seg" movl %%eax, 0(%3)\n"
+		       "6:     "__copyuser_seg" movl %%edx, 4(%3)\n"
 		       "7:     movl 8(%4), %%eax\n"
 		       "8:     movl 12(%4),%%edx\n"
-		       "9:     movl %%eax, 8(%3)\n"
-		       "10:    movl %%edx, 12(%3)\n"
+		       "9:     "__copyuser_seg" movl %%eax, 8(%3)\n"
+		       "10:    "__copyuser_seg" movl %%edx, 12(%3)\n"
 		       "11:    movl 16(%4), %%eax\n"
 		       "12:    movl 20(%4), %%edx\n"
-		       "13:    movl %%eax, 16(%3)\n"
-		       "14:    movl %%edx, 20(%3)\n"
+		       "13:    "__copyuser_seg" movl %%eax, 16(%3)\n"
+		       "14:    "__copyuser_seg" movl %%edx, 20(%3)\n"
 		       "15:    movl 24(%4), %%eax\n"
 		       "16:    movl 28(%4), %%edx\n"
-		       "17:    movl %%eax, 24(%3)\n"
-		       "18:    movl %%edx, 28(%3)\n"
+		       "17:    "__copyuser_seg" movl %%eax, 24(%3)\n"
+		       "18:    "__copyuser_seg" movl %%edx, 28(%3)\n"
 		       "19:    movl 32(%4), %%eax\n"
 		       "20:    movl 36(%4), %%edx\n"
-		       "21:    movl %%eax, 32(%3)\n"
-		       "22:    movl %%edx, 36(%3)\n"
+		       "21:    "__copyuser_seg" movl %%eax, 32(%3)\n"
+		       "22:    "__copyuser_seg" movl %%edx, 36(%3)\n"
 		       "23:    movl 40(%4), %%eax\n"
 		       "24:    movl 44(%4), %%edx\n"
-		       "25:    movl %%eax, 40(%3)\n"
-		       "26:    movl %%edx, 44(%3)\n"
+		       "25:    "__copyuser_seg" movl %%eax, 40(%3)\n"
+		       "26:    "__copyuser_seg" movl %%edx, 44(%3)\n"
 		       "27:    movl 48(%4), %%eax\n"
 		       "28:    movl 52(%4), %%edx\n"
-		       "29:    movl %%eax, 48(%3)\n"
-		       "30:    movl %%edx, 52(%3)\n"
+		       "29:    "__copyuser_seg" movl %%eax, 48(%3)\n"
+		       "30:    "__copyuser_seg" movl %%edx, 52(%3)\n"
 		       "31:    movl 56(%4), %%eax\n"
 		       "32:    movl 60(%4), %%edx\n"
-		       "33:    movl %%eax, 56(%3)\n"
-		       "34:    movl %%edx, 60(%3)\n"
+		       "33:    "__copyuser_seg" movl %%eax, 56(%3)\n"
+		       "34:    "__copyuser_seg" movl %%edx, 60(%3)\n"
 		       "       addl $-64, %0\n"
 		       "       addl $64, %4\n"
 		       "       addl $64, %3\n"
@@ -149,10 +151,116 @@ __copy_user_intel(void __user *to, const void *from, unsigned long size)
 		       "       shrl  $2, %0\n"
 		       "       andl  $3, %%eax\n"
 		       "       cld\n"
+		       __COPYUSER_SET_ES
 		       "99:    rep; movsl\n"
 		       "36:    movl %%eax, %0\n"
 		       "37:    rep; movsb\n"
 		       "100:\n"
+		       __COPYUSER_RESTORE_ES
+		       ".section .fixup,\"ax\"\n"
+		       "101:   lea 0(%%eax,%0,4),%0\n"
+		       "       jmp 100b\n"
+		       ".previous\n"
+		       _ASM_EXTABLE(1b,100b)
+		       _ASM_EXTABLE(2b,100b)
+		       _ASM_EXTABLE(3b,100b)
+		       _ASM_EXTABLE(4b,100b)
+		       _ASM_EXTABLE(5b,100b)
+		       _ASM_EXTABLE(6b,100b)
+		       _ASM_EXTABLE(7b,100b)
+		       _ASM_EXTABLE(8b,100b)
+		       _ASM_EXTABLE(9b,100b)
+		       _ASM_EXTABLE(10b,100b)
+		       _ASM_EXTABLE(11b,100b)
+		       _ASM_EXTABLE(12b,100b)
+		       _ASM_EXTABLE(13b,100b)
+		       _ASM_EXTABLE(14b,100b)
+		       _ASM_EXTABLE(15b,100b)
+		       _ASM_EXTABLE(16b,100b)
+		       _ASM_EXTABLE(17b,100b)
+		       _ASM_EXTABLE(18b,100b)
+		       _ASM_EXTABLE(19b,100b)
+		       _ASM_EXTABLE(20b,100b)
+		       _ASM_EXTABLE(21b,100b)
+		       _ASM_EXTABLE(22b,100b)
+		       _ASM_EXTABLE(23b,100b)
+		       _ASM_EXTABLE(24b,100b)
+		       _ASM_EXTABLE(25b,100b)
+		       _ASM_EXTABLE(26b,100b)
+		       _ASM_EXTABLE(27b,100b)
+		       _ASM_EXTABLE(28b,100b)
+		       _ASM_EXTABLE(29b,100b)
+		       _ASM_EXTABLE(30b,100b)
+		       _ASM_EXTABLE(31b,100b)
+		       _ASM_EXTABLE(32b,100b)
+		       _ASM_EXTABLE(33b,100b)
+		       _ASM_EXTABLE(34b,100b)
+		       _ASM_EXTABLE(35b,100b)
+		       _ASM_EXTABLE(36b,100b)
+		       _ASM_EXTABLE(37b,100b)
+		       _ASM_EXTABLE(99b,101b)
+		       : "=&c"(size), "=&D" (d0), "=&S" (d1)
+		       :  "1"(to), "2"(from), "0"(size)
+		       : "eax", "edx", "memory");
+	return size;
+}
+
+static unsigned long
+__generic_copy_from_user_intel(void *to, const void __user *from, unsigned long size)
+{
+	int d0, d1;
+	__asm__ __volatile__(
+		       "       .align 2,0x90\n"
+		       "1:     "__copyuser_seg" movl 32(%4), %%eax\n"
+		       "       cmpl $67, %0\n"
+		       "       jbe 3f\n"
+		       "2:     "__copyuser_seg" movl 64(%4), %%eax\n"
+		       "       .align 2,0x90\n"
+		       "3:     "__copyuser_seg" movl 0(%4), %%eax\n"
+		       "4:     "__copyuser_seg" movl 4(%4), %%edx\n"
+		       "5:     movl %%eax, 0(%3)\n"
+		       "6:     movl %%edx, 4(%3)\n"
+		       "7:     "__copyuser_seg" movl 8(%4), %%eax\n"
+		       "8:     "__copyuser_seg" movl 12(%4),%%edx\n"
+		       "9:     movl %%eax, 8(%3)\n"
+		       "10:    movl %%edx, 12(%3)\n"
+		       "11:    "__copyuser_seg" movl 16(%4), %%eax\n"
+		       "12:    "__copyuser_seg" movl 20(%4), %%edx\n"
+		       "13:    movl %%eax, 16(%3)\n"
+		       "14:    movl %%edx, 20(%3)\n"
+		       "15:    "__copyuser_seg" movl 24(%4), %%eax\n"
+		       "16:    "__copyuser_seg" movl 28(%4), %%edx\n"
+		       "17:    movl %%eax, 24(%3)\n"
+		       "18:    movl %%edx, 28(%3)\n"
+		       "19:    "__copyuser_seg" movl 32(%4), %%eax\n"
+		       "20:    "__copyuser_seg" movl 36(%4), %%edx\n"
+		       "21:    movl %%eax, 32(%3)\n"
+		       "22:    movl %%edx, 36(%3)\n"
+		       "23:    "__copyuser_seg" movl 40(%4), %%eax\n"
+		       "24:    "__copyuser_seg" movl 44(%4), %%edx\n"
+		       "25:    movl %%eax, 40(%3)\n"
+		       "26:    movl %%edx, 44(%3)\n"
+		       "27:    "__copyuser_seg" movl 48(%4), %%eax\n"
+		       "28:    "__copyuser_seg" movl 52(%4), %%edx\n"
+		       "29:    movl %%eax, 48(%3)\n"
+		       "30:    movl %%edx, 52(%3)\n"
+		       "31:    "__copyuser_seg" movl 56(%4), %%eax\n"
+		       "32:    "__copyuser_seg" movl 60(%4), %%edx\n"
+		       "33:    movl %%eax, 56(%3)\n"
+		       "34:    movl %%edx, 60(%3)\n"
+		       "       addl $-64, %0\n"
+		       "       addl $64, %4\n"
+		       "       addl $64, %3\n"
+		       "       cmpl $63, %0\n"
+		       "       ja  1b\n"
+		       "35:    movl  %0, %%eax\n"
+		       "       shrl  $2, %0\n"
+		       "       andl  $3, %%eax\n"
+		       "       cld\n"
+		       "99:    rep; "__copyuser_seg" movsl\n"
+		       "36:    movl %%eax, %0\n"
+		       "37:    rep; "__copyuser_seg" movsb\n"
+		       "100:\n"
 		       ".section .fixup,\"ax\"\n"
 		       "101:   lea 0(%%eax,%0,4),%0\n"
 		       "       jmp 100b\n"
@@ -207,41 +315,41 @@ __copy_user_zeroing_intel(void *to, const void __user *from, unsigned long size)
 	int d0, d1;
 	__asm__ __volatile__(
 		       "        .align 2,0x90\n"
-		       "0:      movl 32(%4), %%eax\n"
+		       "0:      "__copyuser_seg" movl 32(%4), %%eax\n"
 		       "        cmpl $67, %0\n"
 		       "        jbe 2f\n"
-		       "1:      movl 64(%4), %%eax\n"
+		       "1:      "__copyuser_seg" movl 64(%4), %%eax\n"
 		       "        .align 2,0x90\n"
-		       "2:      movl 0(%4), %%eax\n"
-		       "21:     movl 4(%4), %%edx\n"
+		       "2:      "__copyuser_seg" movl 0(%4), %%eax\n"
+		       "21:     "__copyuser_seg" movl 4(%4), %%edx\n"
 		       "        movl %%eax, 0(%3)\n"
 		       "        movl %%edx, 4(%3)\n"
-		       "3:      movl 8(%4), %%eax\n"
-		       "31:     movl 12(%4),%%edx\n"
+		       "3:      "__copyuser_seg" movl 8(%4), %%eax\n"
+		       "31:     "__copyuser_seg" movl 12(%4),%%edx\n"
 		       "        movl %%eax, 8(%3)\n"
 		       "        movl %%edx, 12(%3)\n"
-		       "4:      movl 16(%4), %%eax\n"
-		       "41:     movl 20(%4), %%edx\n"
+		       "4:      "__copyuser_seg" movl 16(%4), %%eax\n"
+		       "41:     "__copyuser_seg" movl 20(%4), %%edx\n"
 		       "        movl %%eax, 16(%3)\n"
 		       "        movl %%edx, 20(%3)\n"
-		       "10:     movl 24(%4), %%eax\n"
-		       "51:     movl 28(%4), %%edx\n"
+		       "10:     "__copyuser_seg" movl 24(%4), %%eax\n"
+		       "51:     "__copyuser_seg" movl 28(%4), %%edx\n"
 		       "        movl %%eax, 24(%3)\n"
 		       "        movl %%edx, 28(%3)\n"
-		       "11:     movl 32(%4), %%eax\n"
-		       "61:     movl 36(%4), %%edx\n"
+		       "11:     "__copyuser_seg" movl 32(%4), %%eax\n"
+		       "61:     "__copyuser_seg" movl 36(%4), %%edx\n"
 		       "        movl %%eax, 32(%3)\n"
 		       "        movl %%edx, 36(%3)\n"
-		       "12:     movl 40(%4), %%eax\n"
-		       "71:     movl 44(%4), %%edx\n"
+		       "12:     "__copyuser_seg" movl 40(%4), %%eax\n"
+		       "71:     "__copyuser_seg" movl 44(%4), %%edx\n"
 		       "        movl %%eax, 40(%3)\n"
 		       "        movl %%edx, 44(%3)\n"
-		       "13:     movl 48(%4), %%eax\n"
-		       "81:     movl 52(%4), %%edx\n"
+		       "13:     "__copyuser_seg" movl 48(%4), %%eax\n"
+		       "81:     "__copyuser_seg" movl 52(%4), %%edx\n"
 		       "        movl %%eax, 48(%3)\n"
 		       "        movl %%edx, 52(%3)\n"
-		       "14:     movl 56(%4), %%eax\n"
-		       "91:     movl 60(%4), %%edx\n"
+		       "14:     "__copyuser_seg" movl 56(%4), %%eax\n"
+		       "91:     "__copyuser_seg" movl 60(%4), %%edx\n"
 		       "        movl %%eax, 56(%3)\n"
 		       "        movl %%edx, 60(%3)\n"
 		       "        addl $-64, %0\n"
@@ -253,9 +361,9 @@ __copy_user_zeroing_intel(void *to, const void __user *from, unsigned long size)
 		       "        shrl  $2, %0\n"
 		       "        andl $3, %%eax\n"
 		       "        cld\n"
-		       "6:      rep; movsl\n"
+		       "6:      rep; "__copyuser_seg" movsl\n"
 		       "        movl %%eax,%0\n"
-		       "7:      rep; movsb\n"
+		       "7:      rep; "__copyuser_seg" movsb\n"
 		       "8:\n"
 		       ".section .fixup,\"ax\"\n"
 		       "9:      lea 0(%%eax,%0,4),%0\n"
@@ -305,41 +413,41 @@ static unsigned long __copy_user_zeroing_intel_nocache(void *to,
 
 	__asm__ __volatile__(
 	       "        .align 2,0x90\n"
-	       "0:      movl 32(%4), %%eax\n"
+	       "0:      "__copyuser_seg" movl 32(%4), %%eax\n"
 	       "        cmpl $67, %0\n"
 	       "        jbe 2f\n"
-	       "1:      movl 64(%4), %%eax\n"
+	       "1:      "__copyuser_seg" movl 64(%4), %%eax\n"
 	       "        .align 2,0x90\n"
-	       "2:      movl 0(%4), %%eax\n"
-	       "21:     movl 4(%4), %%edx\n"
+	       "2:      "__copyuser_seg" movl 0(%4), %%eax\n"
+	       "21:     "__copyuser_seg" movl 4(%4), %%edx\n"
 	       "        movnti %%eax, 0(%3)\n"
 	       "        movnti %%edx, 4(%3)\n"
-	       "3:      movl 8(%4), %%eax\n"
-	       "31:     movl 12(%4),%%edx\n"
+	       "3:      "__copyuser_seg" movl 8(%4), %%eax\n"
+	       "31:     "__copyuser_seg" movl 12(%4),%%edx\n"
 	       "        movnti %%eax, 8(%3)\n"
 	       "        movnti %%edx, 12(%3)\n"
-	       "4:      movl 16(%4), %%eax\n"
-	       "41:     movl 20(%4), %%edx\n"
+	       "4:      "__copyuser_seg" movl 16(%4), %%eax\n"
+	       "41:     "__copyuser_seg" movl 20(%4), %%edx\n"
 	       "        movnti %%eax, 16(%3)\n"
 	       "        movnti %%edx, 20(%3)\n"
-	       "10:     movl 24(%4), %%eax\n"
-	       "51:     movl 28(%4), %%edx\n"
+	       "10:     "__copyuser_seg" movl 24(%4), %%eax\n"
+	       "51:     "__copyuser_seg" movl 28(%4), %%edx\n"
 	       "        movnti %%eax, 24(%3)\n"
 	       "        movnti %%edx, 28(%3)\n"
-	       "11:     movl 32(%4), %%eax\n"
-	       "61:     movl 36(%4), %%edx\n"
+	       "11:     "__copyuser_seg" movl 32(%4), %%eax\n"
+	       "61:     "__copyuser_seg" movl 36(%4), %%edx\n"
 	       "        movnti %%eax, 32(%3)\n"
 	       "        movnti %%edx, 36(%3)\n"
-	       "12:     movl 40(%4), %%eax\n"
-	       "71:     movl 44(%4), %%edx\n"
+	       "12:     "__copyuser_seg" movl 40(%4), %%eax\n"
+	       "71:     "__copyuser_seg" movl 44(%4), %%edx\n"
 	       "        movnti %%eax, 40(%3)\n"
 	       "        movnti %%edx, 44(%3)\n"
-	       "13:     movl 48(%4), %%eax\n"
-	       "81:     movl 52(%4), %%edx\n"
+	       "13:     "__copyuser_seg" movl 48(%4), %%eax\n"
+	       "81:     "__copyuser_seg" movl 52(%4), %%edx\n"
 	       "        movnti %%eax, 48(%3)\n"
 	       "        movnti %%edx, 52(%3)\n"
-	       "14:     movl 56(%4), %%eax\n"
-	       "91:     movl 60(%4), %%edx\n"
+	       "14:     "__copyuser_seg" movl 56(%4), %%eax\n"
+	       "91:     "__copyuser_seg" movl 60(%4), %%edx\n"
 	       "        movnti %%eax, 56(%3)\n"
 	       "        movnti %%edx, 60(%3)\n"
 	       "        addl $-64, %0\n"
@@ -352,9 +460,9 @@ static unsigned long __copy_user_zeroing_intel_nocache(void *to,
 	       "        shrl  $2, %0\n"
 	       "        andl $3, %%eax\n"
 	       "        cld\n"
-	       "6:      rep; movsl\n"
+	       "6:      rep; "__copyuser_seg" movsl\n"
 	       "        movl %%eax,%0\n"
-	       "7:      rep; movsb\n"
+	       "7:      rep; "__copyuser_seg" movsb\n"
 	       "8:\n"
 	       ".section .fixup,\"ax\"\n"
 	       "9:      lea 0(%%eax,%0,4),%0\n"
@@ -399,41 +507,41 @@ static unsigned long __copy_user_intel_nocache(void *to,
 
 	__asm__ __volatile__(
 	       "        .align 2,0x90\n"
-	       "0:      movl 32(%4), %%eax\n"
+	       "0:      "__copyuser_seg" movl 32(%4), %%eax\n"
 	       "        cmpl $67, %0\n"
 	       "        jbe 2f\n"
-	       "1:      movl 64(%4), %%eax\n"
+	       "1:      "__copyuser_seg" movl 64(%4), %%eax\n"
 	       "        .align 2,0x90\n"
-	       "2:      movl 0(%4), %%eax\n"
-	       "21:     movl 4(%4), %%edx\n"
+	       "2:      "__copyuser_seg" movl 0(%4), %%eax\n"
+	       "21:     "__copyuser_seg" movl 4(%4), %%edx\n"
 	       "        movnti %%eax, 0(%3)\n"
 	       "        movnti %%edx, 4(%3)\n"
-	       "3:      movl 8(%4), %%eax\n"
-	       "31:     movl 12(%4),%%edx\n"
+	       "3:      "__copyuser_seg" movl 8(%4), %%eax\n"
+	       "31:     "__copyuser_seg" movl 12(%4),%%edx\n"
 	       "        movnti %%eax, 8(%3)\n"
 	       "        movnti %%edx, 12(%3)\n"
-	       "4:      movl 16(%4), %%eax\n"
-	       "41:     movl 20(%4), %%edx\n"
+	       "4:      "__copyuser_seg" movl 16(%4), %%eax\n"
+	       "41:     "__copyuser_seg" movl 20(%4), %%edx\n"
 	       "        movnti %%eax, 16(%3)\n"
 	       "        movnti %%edx, 20(%3)\n"
-	       "10:     movl 24(%4), %%eax\n"
-	       "51:     movl 28(%4), %%edx\n"
+	       "10:     "__copyuser_seg" movl 24(%4), %%eax\n"
+	       "51:     "__copyuser_seg" movl 28(%4), %%edx\n"
 	       "        movnti %%eax, 24(%3)\n"
 	       "        movnti %%edx, 28(%3)\n"
-	       "11:     movl 32(%4), %%eax\n"
-	       "61:     movl 36(%4), %%edx\n"
+	       "11:     "__copyuser_seg" movl 32(%4), %%eax\n"
+	       "61:     "__copyuser_seg" movl 36(%4), %%edx\n"
 	       "        movnti %%eax, 32(%3)\n"
 	       "        movnti %%edx, 36(%3)\n"
-	       "12:     movl 40(%4), %%eax\n"
-	       "71:     movl 44(%4), %%edx\n"
+	       "12:     "__copyuser_seg" movl 40(%4), %%eax\n"
+	       "71:     "__copyuser_seg" movl 44(%4), %%edx\n"
 	       "        movnti %%eax, 40(%3)\n"
 	       "        movnti %%edx, 44(%3)\n"
-	       "13:     movl 48(%4), %%eax\n"
-	       "81:     movl 52(%4), %%edx\n"
+	       "13:     "__copyuser_seg" movl 48(%4), %%eax\n"
+	       "81:     "__copyuser_seg" movl 52(%4), %%edx\n"
 	       "        movnti %%eax, 48(%3)\n"
 	       "        movnti %%edx, 52(%3)\n"
-	       "14:     movl 56(%4), %%eax\n"
-	       "91:     movl 60(%4), %%edx\n"
+	       "14:     "__copyuser_seg" movl 56(%4), %%eax\n"
+	       "91:     "__copyuser_seg" movl 60(%4), %%edx\n"
 	       "        movnti %%eax, 56(%3)\n"
 	       "        movnti %%edx, 60(%3)\n"
 	       "        addl $-64, %0\n"
@@ -446,9 +554,9 @@ static unsigned long __copy_user_intel_nocache(void *to,
 	       "        shrl  $2, %0\n"
 	       "        andl $3, %%eax\n"
 	       "        cld\n"
-	       "6:      rep; movsl\n"
+	       "6:      rep; "__copyuser_seg" movsl\n"
 	       "        movl %%eax,%0\n"
-	       "7:      rep; movsb\n"
+	       "7:      rep; "__copyuser_seg" movsb\n"
 	       "8:\n"
 	       ".section .fixup,\"ax\"\n"
 	       "9:      lea 0(%%eax,%0,4),%0\n"
@@ -488,32 +596,36 @@ static unsigned long __copy_user_intel_nocache(void *to,
  */
 unsigned long __copy_user_zeroing_intel(void *to, const void __user *from,
 					unsigned long size);
-unsigned long __copy_user_intel(void __user *to, const void *from,
+unsigned long __generic_copy_to_user_intel(void __user *to, const void *from,
+					unsigned long size);
+unsigned long __generic_copy_from_user_intel(void *to, const void __user *from,
 					unsigned long size);
 unsigned long __copy_user_zeroing_intel_nocache(void *to,
 				const void __user *from, unsigned long size);
 #endif /* CONFIG_X86_INTEL_USERCOPY */
 
 /* Generic arbitrary sized copy.  */
-#define __copy_user(to, from, size)					\
+#define __copy_user(to, from, size, prefix, set, restore)		\
 do {									\
 	int __d0, __d1, __d2;						\
 	__asm__ __volatile__(						\
+		set							\
 		"	cmp  $7,%0\n"					\
 		"	jbe  1f\n"					\
 		"	movl %1,%0\n"					\
 		"	negl %0\n"					\
 		"	andl $7,%0\n"					\
 		"	subl %0,%3\n"					\
-		"4:	rep; movsb\n"					\
+		"4:	rep; "prefix"movsb\n"				\
 		"	movl %3,%0\n"					\
 		"	shrl $2,%0\n"					\
 		"	andl $3,%3\n"					\
 		"	.align 2,0x90\n"				\
-		"0:	rep; movsl\n"					\
+		"0:	rep; "prefix"movsl\n"				\
 		"	movl %3,%0\n"					\
-		"1:	rep; movsb\n"					\
+		"1:	rep; "prefix"movsb\n"				\
 		"2:\n"							\
+		restore							\
 		".section .fixup,\"ax\"\n"				\
 		"5:	addl %3,%0\n"					\
 		"	jmp 2b\n"					\
@@ -538,14 +650,14 @@ do {									\
 		"	negl %0\n"					\
 		"	andl $7,%0\n"					\
 		"	subl %0,%3\n"					\
-		"4:	rep; movsb\n"					\
+		"4:	rep; "__copyuser_seg"movsb\n"			\
 		"	movl %3,%0\n"					\
 		"	shrl $2,%0\n"					\
 		"	andl $3,%3\n"					\
 		"	.align 2,0x90\n"				\
-		"0:	rep; movsl\n"					\
+		"0:	rep; "__copyuser_seg"movsl\n"			\
 		"	movl %3,%0\n"					\
-		"1:	rep; movsb\n"					\
+		"1:	rep; "__copyuser_seg"movsb\n"			\
 		"2:\n"							\
 		".section .fixup,\"ax\"\n"				\
 		"5:	addl %3,%0\n"					\
@@ -572,9 +684,9 @@ unsigned long __copy_to_user_ll(void __user *to, const void *from,
 {
 	stac();
 	if (movsl_is_ok(to, from, n))
-		__copy_user(to, from, n);
+		__copy_user(to, from, n, "", __COPYUSER_SET_ES, __COPYUSER_RESTORE_ES);
 	else
-		n = __copy_user_intel(to, from, n);
+		n = __generic_copy_to_user_intel(to, from, n);
 	clac();
 	return n;
 }
@@ -598,10 +710,9 @@ unsigned long __copy_from_user_ll_nozero(void *to, const void __user *from,
 {
 	stac();
 	if (movsl_is_ok(to, from, n))
-		__copy_user(to, from, n);
+		__copy_user(to, from, n, __copyuser_seg, "", "");
 	else
-		n = __copy_user_intel((void __user *)to,
-				      (const void *)from, n);
+		n = __generic_copy_from_user_intel(to, from, n);
 	clac();
 	return n;
 }
@@ -632,60 +743,38 @@ unsigned long __copy_from_user_ll_nocache_nozero(void *to, const void __user *fr
 	if (n > 64 && cpu_has_xmm2)
 		n = __copy_user_intel_nocache(to, from, n);
 	else
-		__copy_user(to, from, n);
+		__copy_user(to, from, n, __copyuser_seg, "", "");
 #else
-	__copy_user(to, from, n);
+	__copy_user(to, from, n, __copyuser_seg, "", "");
 #endif
 	clac();
 	return n;
 }
 EXPORT_SYMBOL(__copy_from_user_ll_nocache_nozero);
 
-/**
- * copy_to_user: - Copy a block of data into user space.
- * @to:   Destination address, in user space.
- * @from: Source address, in kernel space.
- * @n:    Number of bytes to copy.
- *
- * Context: User context only. This function may sleep if pagefaults are
- *          enabled.
- *
- * Copy data from kernel space to user space.
- *
- * Returns number of bytes that could not be copied.
- * On success, this will be zero.
- */
-unsigned long _copy_to_user(void __user *to, const void *from, unsigned n)
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+void __set_fs(mm_segment_t x)
 {
-	if (access_ok(VERIFY_WRITE, to, n))
-		n = __copy_to_user(to, from, n);
-	return n;
+	switch (x.seg) {
+	case 0:
+		loadsegment(gs, 0);
+		break;
+	case TASK_SIZE_MAX:
+		loadsegment(gs, __USER_DS);
+		break;
+	case -1UL:
+		loadsegment(gs, __KERNEL_DS);
+		break;
+	default:
+		BUG();
+	}
 }
-EXPORT_SYMBOL(_copy_to_user);
+EXPORT_SYMBOL(__set_fs);
 
-/**
- * copy_from_user: - Copy a block of data from user space.
- * @to:   Destination address, in kernel space.
- * @from: Source address, in user space.
- * @n:    Number of bytes to copy.
- *
- * Context: User context only. This function may sleep if pagefaults are
- *          enabled.
- *
- * Copy data from user space to kernel space.
- *
- * Returns number of bytes that could not be copied.
- * On success, this will be zero.
- *
- * If some data could not be copied, this function will pad the copied
- * data to the requested size using zero bytes.
- */
-unsigned long _copy_from_user(void *to, const void __user *from, unsigned n)
+void set_fs(mm_segment_t x)
 {
-	if (access_ok(VERIFY_READ, from, n))
-		n = __copy_from_user(to, from, n);
-	else
-		memset(to, 0, n);
-	return n;
+	current_thread_info()->addr_limit = x;
+	__set_fs(x);
 }
-EXPORT_SYMBOL(_copy_from_user);
+EXPORT_SYMBOL(set_fs);
+#endif
diff --git a/arch/x86/lib/usercopy_64.c b/arch/x86/lib/usercopy_64.c
index 0a42327..45c0063 100644
--- a/arch/x86/lib/usercopy_64.c
+++ b/arch/x86/lib/usercopy_64.c
@@ -18,6 +18,7 @@ unsigned long __clear_user(void __user *addr, unsigned long size)
 	might_fault();
 	/* no memory constraint because it doesn't change any memory gcc knows
 	   about */
+	pax_open_userland();
 	stac();
 	asm volatile(
 		"	testq  %[size8],%[size8]\n"
@@ -39,9 +40,10 @@ unsigned long __clear_user(void __user *addr, unsigned long size)
 		_ASM_EXTABLE(0b,3b)
 		_ASM_EXTABLE(1b,2b)
 		: [size8] "=&c"(size), [dst] "=&D" (__d0)
-		: [size1] "r"(size & 7), "[size8]" (size / 8), "[dst]"(addr),
+		: [size1] "r"(size & 7), "[size8]" (size / 8), "[dst]"(____m(addr)),
 		  [zero] "r" (0UL), [eight] "r" (8UL));
 	clac();
+	pax_close_userland();
 	return size;
 }
 EXPORT_SYMBOL(__clear_user);
@@ -54,12 +56,11 @@ unsigned long clear_user(void __user *to, unsigned long n)
 }
 EXPORT_SYMBOL(clear_user);
 
-unsigned long copy_in_user(void __user *to, const void __user *from, unsigned len)
+unsigned long copy_in_user(void __user *to, const void __user *from, unsigned long len)
 {
-	if (access_ok(VERIFY_WRITE, to, len) && access_ok(VERIFY_READ, from, len)) { 
-		return copy_user_generic((__force void *)to, (__force void *)from, len);
-	} 
-	return len;		
+	if (access_ok(VERIFY_WRITE, to, len) && access_ok(VERIFY_READ, from, len))
+		return copy_user_generic((void __force_kernel *)____m(to), (void __force_kernel *)____m(from), len);
+	return len;
 }
 EXPORT_SYMBOL(copy_in_user);
 
@@ -69,8 +70,10 @@ EXPORT_SYMBOL(copy_in_user);
  * it is not necessary to optimize tail handling.
  */
 __visible unsigned long
-copy_user_handle_tail(char *to, char *from, unsigned len)
+copy_user_handle_tail(char __user *to, char __user *from, unsigned long len)
 {
+	clac();
+	pax_close_userland();
 	for (; len; --len, to++) {
 		char c;
 
@@ -79,10 +82,9 @@ copy_user_handle_tail(char *to, char *from, unsigned len)
 		if (__put_user_nocheck(c, to, sizeof(char)))
 			break;
 	}
-	clac();
 
 	/* If the destination is a kernel buffer, we always clear the end */
-	if (!__addr_ok(to))
-		memset(to, 0, len);
+	if (!__addr_ok(to) && (unsigned long)to >= TASK_SIZE_MAX + pax_user_shadow_base)
+		memset((void __force_kernel *)to, 0, len);
 	return len;
 }
diff --git a/arch/x86/math-emu/fpu_aux.c b/arch/x86/math-emu/fpu_aux.c
index 024f6e9..308f1b0 100644
--- a/arch/x86/math-emu/fpu_aux.c
+++ b/arch/x86/math-emu/fpu_aux.c
@@ -52,7 +52,7 @@ void fpstate_init_soft(struct swregs_state *soft)
 
 void finit(void)
 {
-	fpstate_init_soft(&current->thread.fpu.state.soft);
+	fpstate_init_soft(&current->thread.fpu.state->soft);
 }
 
 /*
diff --git a/arch/x86/math-emu/fpu_entry.c b/arch/x86/math-emu/fpu_entry.c
index e945fed..bffe686 100644
--- a/arch/x86/math-emu/fpu_entry.c
+++ b/arch/x86/math-emu/fpu_entry.c
@@ -643,7 +643,7 @@ int fpregs_soft_set(struct task_struct *target,
 		    unsigned int pos, unsigned int count,
 		    const void *kbuf, const void __user *ubuf)
 {
-	struct swregs_state *s387 = &target->thread.fpu.state.soft;
+	struct swregs_state *s387 = &target->thread.fpu.state->soft;
 	void *space = s387->st_space;
 	int ret;
 	int offset, other, i, tags, regnr, tag, newtop;
@@ -695,7 +695,7 @@ int fpregs_soft_get(struct task_struct *target,
 		    unsigned int pos, unsigned int count,
 		    void *kbuf, void __user *ubuf)
 {
-	struct swregs_state *s387 = &target->thread.fpu.state.soft;
+	struct swregs_state *s387 = &target->thread.fpu.state->soft;
 	const void *space = s387->st_space;
 	int ret;
 	int offset = (S387->ftop & 7) * 10, other = 80 - offset;
diff --git a/arch/x86/math-emu/fpu_etc.c b/arch/x86/math-emu/fpu_etc.c
index 233e5af5..dd82ff0 100644
--- a/arch/x86/math-emu/fpu_etc.c
+++ b/arch/x86/math-emu/fpu_etc.c
@@ -119,9 +119,14 @@ static void fxam(FPU_REG *st0_ptr, u_char st0tag)
 	setcc(c);
 }
 
+static void FPU_ST0_illegal(FPU_REG *st0_ptr, u_char st0_tag)
+{
+	FPU_illegal();
+}
+
 static FUNC_ST0 const fp_etc_table[] = {
-	fchs, fabs, (FUNC_ST0) FPU_illegal, (FUNC_ST0) FPU_illegal,
-	ftst_, fxam, (FUNC_ST0) FPU_illegal, (FUNC_ST0) FPU_illegal
+	fchs, fabs, FPU_ST0_illegal, FPU_ST0_illegal,
+	ftst_, fxam, FPU_ST0_illegal, FPU_ST0_illegal
 };
 
 void FPU_etc(void)
diff --git a/arch/x86/math-emu/fpu_system.h b/arch/x86/math-emu/fpu_system.h
index 5e044d5..d342fce 100644
--- a/arch/x86/math-emu/fpu_system.h
+++ b/arch/x86/math-emu/fpu_system.h
@@ -46,7 +46,7 @@ static inline struct desc_struct FPU_get_ldt_descriptor(unsigned seg)
 #define SEG_EXPAND_DOWN(s)	(((s).b & ((1 << 11) | (1 << 10))) \
 				 == (1 << 10))
 
-#define I387			(&current->thread.fpu.state)
+#define I387			(current->thread.fpu.state)
 #define FPU_info		(I387->soft.info)
 
 #define FPU_CS			(*(unsigned short *) &(FPU_info->regs->cs))
diff --git a/arch/x86/math-emu/fpu_trig.c b/arch/x86/math-emu/fpu_trig.c
index ecd0668..4b4c664 100644
--- a/arch/x86/math-emu/fpu_trig.c
+++ b/arch/x86/math-emu/fpu_trig.c
@@ -432,13 +432,13 @@ static void fxtract(FPU_REG *st0_ptr, u_char st0_tag)
 #endif /* PARANOID */
 }
 
-static void fdecstp(void)
+static void fdecstp(FPU_REG *st0_ptr, u_char st0_tag)
 {
 	clear_C1();
 	top--;
 }
 
-static void fincstp(void)
+static void fincstp(FPU_REG *st0_ptr, u_char st0_tag)
 {
 	clear_C1();
 	top++;
@@ -607,6 +607,11 @@ static int fsin(FPU_REG *st0_ptr, u_char tag)
 	}
 }
 
+static void _fsin(FPU_REG *st0_ptr, u_char tag)
+{
+	fsin(st0_ptr, tag);
+}
+
 static int f_cos(FPU_REG *st0_ptr, u_char tag)
 {
 	u_char st0_sign;
@@ -1625,7 +1630,7 @@ static void fscale(FPU_REG *st0_ptr, u_char st0_tag)
 
 static FUNC_ST0 const trig_table_a[] = {
 	f2xm1, fyl2x, fptan, fpatan,
-	fxtract, fprem1, (FUNC_ST0) fdecstp, (FUNC_ST0) fincstp
+	fxtract, fprem1, fdecstp, fincstp
 };
 
 void FPU_triga(void)
@@ -1634,7 +1639,7 @@ void FPU_triga(void)
 }
 
 static FUNC_ST0 const trig_table_b[] = {
-	fprem, fyl2xp1, fsqrt_, fsincos, frndint_, fscale, (FUNC_ST0) fsin, fcos
+	fprem, fyl2xp1, fsqrt_, fsincos, frndint_, fscale, _fsin, fcos
 };
 
 void FPU_trigb(void)
diff --git a/arch/x86/math-emu/reg_constant.c b/arch/x86/math-emu/reg_constant.c
index 0054835..a3bd671 100644
--- a/arch/x86/math-emu/reg_constant.c
+++ b/arch/x86/math-emu/reg_constant.c
@@ -107,8 +107,13 @@ static void fldz(int rc)
 
 typedef void (*FUNC_RC) (int);
 
+static  void FPU_RC_illegal(int rc)
+{
+	FPU_illegal();
+}
+
 static FUNC_RC constants_table[] = {
-	fld1, fldl2t, fldl2e, fldpi, fldlg2, fldln2, fldz, (FUNC_RC) FPU_illegal
+	fld1, fldl2t, fldl2e, fldpi, fldlg2, fldln2, fldz, FPU_RC_illegal
 };
 
 void fconst(void)
diff --git a/arch/x86/mm/Makefile b/arch/x86/mm/Makefile
index f989132..7c590d6 100644
--- a/arch/x86/mm/Makefile
+++ b/arch/x86/mm/Makefile
@@ -39,3 +39,6 @@ obj-$(CONFIG_NUMA_EMU)		+= numa_emulation.o
 obj-$(CONFIG_X86_INTEL_MPX)	+= mpx.o
 obj-$(CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS) += pkeys.o
 
+quote:="
+obj-$(CONFIG_X86_64)		+= uderef_64.o
+CFLAGS_uderef_64.o		:= $(subst $(quote),,$(CONFIG_ARCH_HWEIGHT_CFLAGS)) -fcall-saved-rax
diff --git a/arch/x86/mm/dump_pagetables.c b/arch/x86/mm/dump_pagetables.c
index 99bfb19..237fb1d 100644
--- a/arch/x86/mm/dump_pagetables.c
+++ b/arch/x86/mm/dump_pagetables.c
@@ -27,6 +27,7 @@
 struct pg_state {
 	int level;
 	pgprot_t current_prot;
+	pgprot_t current_prots[5];
 	unsigned long start_address;
 	unsigned long current_address;
 	const struct addr_marker *marker;
@@ -184,6 +185,23 @@ static unsigned long normalize_addr(unsigned long u)
 #endif
 }
 
+static pgprot_t merge_prot(pgprot_t old_prot, pgprot_t new_prot)
+{
+	if (!(pgprot_val(new_prot) & _PAGE_PRESENT))
+		return new_prot;
+
+	if (!(pgprot_val(old_prot) & _PAGE_PRESENT))
+		return new_prot;
+
+	if (pgprot_val(old_prot) & _PAGE_NX)
+		pgprot_val(new_prot) |= _PAGE_NX;
+
+	if (!(pgprot_val(old_prot) & _PAGE_RW))
+		pgprot_val(new_prot) &= ~_PAGE_RW;
+
+	return new_prot;
+}
+
 /*
  * This function gets called on a break in a continuous series
  * of PTE entries; the next one is different so we need to
@@ -200,11 +218,13 @@ static void note_page(struct seq_file *m, struct pg_state *st,
 	 * we have now. "break" is either changing perms, levels or
 	 * address space marker.
 	 */
+	new_prot = merge_prot(st->current_prots[level - 1], new_prot);
 	prot = pgprot_val(new_prot);
 	cur = pgprot_val(st->current_prot);
 
 	if (!st->level) {
 		/* First entry */
+		st->current_prots[0] = __pgprot(_PAGE_RW);
 		st->current_prot = new_prot;
 		st->level = level;
 		st->marker = address_markers;
@@ -216,9 +236,8 @@ static void note_page(struct seq_file *m, struct pg_state *st,
 		const char *unit = units;
 		unsigned long delta;
 		int width = sizeof(unsigned long) * 2;
-		pgprotval_t pr = pgprot_val(st->current_prot);
 
-		if (st->check_wx && (pr & _PAGE_RW) && !(pr & _PAGE_NX)) {
+		if (st->check_wx && (cur & _PAGE_RW) && !(cur & _PAGE_NX)) {
 			WARN_ONCE(1,
 				  "x86/mm: Found insecure W+X mapping at address %p/%pS\n",
 				  (void *)st->start_address,
@@ -304,9 +323,10 @@ static void walk_pmd_level(struct seq_file *m, struct pg_state *st, pud_t addr,
 	start = (pmd_t *) pud_page_vaddr(addr);
 	for (i = 0; i < PTRS_PER_PMD; i++) {
 		st->current_address = normalize_addr(P + i * PMD_LEVEL_MULT);
+		prot = pmd_flags(*start);
+		st->current_prots[3] = merge_prot(st->current_prots[2], __pgprot(prot));
 		if (!pmd_none(*start)) {
 			if (pmd_large(*start) || !pmd_present(*start)) {
-				prot = pmd_flags(*start);
 				note_page(m, st, __pgprot(prot), 3);
 			} else {
 				walk_pte_level(m, st, *start,
@@ -337,9 +357,10 @@ static void walk_pud_level(struct seq_file *m, struct pg_state *st, pgd_t addr,
 
 	for (i = 0; i < PTRS_PER_PUD; i++) {
 		st->current_address = normalize_addr(P + i * PUD_LEVEL_MULT);
+		prot = pud_flags(*start);
+		st->current_prots[2] = merge_prot(st->current_prots[1], __pgprot(start->pud));
 		if (!pud_none(*start)) {
 			if (pud_large(*start) || !pud_present(*start)) {
-				prot = pud_flags(*start);
 				note_page(m, st, __pgprot(prot), 2);
 			} else {
 				walk_pmd_level(m, st, *start,
@@ -395,9 +416,10 @@ static void ptdump_walk_pgd_level_core(struct seq_file *m, pgd_t *pgd,
 
 	for (i = 0; i < PTRS_PER_PGD; i++) {
 		st.current_address = normalize_addr(i * PGD_LEVEL_MULT);
+		prot = pgd_flags(*start);
+		st.current_prots[1] = __pgprot(prot);
 		if (!pgd_none(*start) && !is_hypervisor_range(i)) {
 			if (pgd_large(*start) || !pgd_present(*start)) {
-				prot = pgd_flags(*start);
 				note_page(m, &st, __pgprot(prot), 1);
 			} else {
 				walk_pud_level(m, &st, *start,
diff --git a/arch/x86/mm/extable.c b/arch/x86/mm/extable.c
index 82447b3..95c2b03 100644
--- a/arch/x86/mm/extable.c
+++ b/arch/x86/mm/extable.c
@@ -1,5 +1,6 @@
 #include <linux/module.h>
 #include <asm/uaccess.h>
+#include <asm/boot.h>
 
 typedef bool (*ex_handler_t)(const struct exception_table_entry *,
 			    struct pt_regs *, int);
@@ -7,12 +8,25 @@ typedef bool (*ex_handler_t)(const struct exception_table_entry *,
 static inline unsigned long
 ex_fixup_addr(const struct exception_table_entry *x)
 {
-	return (unsigned long)&x->fixup + x->fixup;
+	unsigned long reloc = 0;
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+	reloc = ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
+#endif
+
+	return (unsigned long)&x->fixup + x->fixup + reloc;
 }
+
 static inline ex_handler_t
 ex_fixup_handler(const struct exception_table_entry *x)
 {
-	return (ex_handler_t)((unsigned long)&x->handler + x->handler);
+	unsigned long reloc = 0;
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+	reloc = ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
+#endif
+
+	return (ex_handler_t)((unsigned long)&x->handler + x->handler + reloc);
 }
 
 bool ex_handler_default(const struct exception_table_entry *fixup,
@@ -61,7 +75,7 @@ int fixup_exception(struct pt_regs *regs, int trapnr)
 	ex_handler_t handler;
 
 #ifdef CONFIG_PNPBIOS
-	if (unlikely(SEGMENT_IS_PNP_CODE(regs->cs))) {
+	if (unlikely(!v8086_mode(regs) && SEGMENT_IS_PNP_CODE(regs->cs))) {
 		extern u32 pnp_bios_fault_eip, pnp_bios_fault_esp;
 		extern u32 pnp_bios_is_utter_crap;
 		pnp_bios_is_utter_crap = 1;
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 5ce1ed0..f713160 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -14,6 +14,8 @@
 #include <linux/prefetch.h>		/* prefetchw			*/
 #include <linux/context_tracking.h>	/* exception_enter(), ...	*/
 #include <linux/uaccess.h>		/* faulthandler_disabled()	*/
+#include <linux/unistd.h>
+#include <linux/compiler.h>
 
 #include <asm/cpufeature.h>		/* boot_cpu_has, ...		*/
 #include <asm/traps.h>			/* dotraplinkage, ...		*/
@@ -23,6 +25,11 @@
 #include <asm/vsyscall.h>		/* emulate_vsyscall		*/
 #include <asm/vm86.h>			/* struct vm86			*/
 #include <asm/mmu_context.h>		/* vma_pkey()			*/
+#include <asm/tlbflush.h>
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+#include <asm/stacktrace.h>
+#endif
 
 #define CREATE_TRACE_POINTS
 #include <asm/trace/exceptions.h>
@@ -126,7 +133,10 @@ check_prefetch_opcode(struct pt_regs *regs, unsigned char *instr,
 		return !instr_lo || (instr_lo>>1) == 1;
 	case 0x00:
 		/* Prefetch instruction is 0x0F0D or 0x0F18 */
-		if (probe_kernel_address(instr, opcode))
+		if (user_mode(regs)) {
+			if (__copy_from_user_inatomic(&opcode, (unsigned char __force_user *)(instr), 1))
+				return 0;
+		} else if (probe_kernel_address(instr, opcode))
 			return 0;
 
 		*prefetch = (instr_lo == 0xF) &&
@@ -160,7 +170,10 @@ is_prefetch(struct pt_regs *regs, unsigned long error_code, unsigned long addr)
 	while (instr < max_instr) {
 		unsigned char opcode;
 
-		if (probe_kernel_address(instr, opcode))
+		if (user_mode(regs)) {
+			if (__copy_from_user_inatomic(&opcode, (unsigned char __force_user *)(instr), 1))
+				break;
+		} else if (probe_kernel_address(instr, opcode))
 			break;
 
 		instr++;
@@ -244,6 +257,34 @@ force_sig_info_fault(int si_signo, int si_code, unsigned long address,
 	force_sig_info(si_signo, &info, tsk);
 }
 
+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
+static bool pax_is_fetch_fault(struct pt_regs *regs, unsigned long error_code, unsigned long address);
+#endif
+
+#ifdef CONFIG_PAX_EMUTRAMP
+static int pax_handle_fetch_fault(struct pt_regs *regs);
+#endif
+
+#ifdef CONFIG_PAX_PAGEEXEC
+static inline pmd_t * pax_get_pmd(struct mm_struct *mm, unsigned long address)
+{
+	pgd_t *pgd;
+	pud_t *pud;
+	pmd_t *pmd;
+
+	pgd = pgd_offset(mm, address);
+	if (!pgd_present(*pgd))
+		return NULL;
+	pud = pud_offset(pgd, address);
+	if (!pud_present(*pud))
+		return NULL;
+	pmd = pmd_offset(pud, address);
+	if (!pmd_present(*pmd))
+		return NULL;
+	return pmd;
+}
+#endif
+
 DEFINE_SPINLOCK(pgd_lock);
 LIST_HEAD(pgd_list);
 
@@ -294,10 +335,27 @@ void vmalloc_sync_all(void)
 	for (address = VMALLOC_START & PMD_MASK;
 	     address >= TASK_SIZE && address < FIXADDR_TOP;
 	     address += PMD_SIZE) {
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+		unsigned long cpu;
+#else
 		struct page *page;
+#endif
 
 		spin_lock(&pgd_lock);
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+		for (cpu = 0; cpu < nr_cpu_ids; ++cpu) {
+			pgd_t *pgd = get_cpu_pgd(cpu, user);
+			pmd_t *ret;
+
+			ret = vmalloc_sync_one(pgd, address);
+			if (!ret)
+				break;
+			pgd = get_cpu_pgd(cpu, kernel);
+#else
 		list_for_each_entry(page, &pgd_list, lru) {
+			pgd_t *pgd;
 			spinlock_t *pgt_lock;
 			pmd_t *ret;
 
@@ -305,8 +363,14 @@ void vmalloc_sync_all(void)
 			pgt_lock = &pgd_page_get_mm(page)->page_table_lock;
 
 			spin_lock(pgt_lock);
-			ret = vmalloc_sync_one(page_address(page), address);
+			pgd = page_address(page);
+#endif
+
+			ret = vmalloc_sync_one(pgd, address);
+
+#ifndef CONFIG_PAX_PER_CPU_PGD
 			spin_unlock(pgt_lock);
+#endif
 
 			if (!ret)
 				break;
@@ -340,6 +404,12 @@ static noinline int vmalloc_fault(unsigned long address)
 	 * an interrupt in the middle of a task switch..
 	 */
 	pgd_paddr = read_cr3();
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+	BUG_ON(__pa(get_cpu_pgd(smp_processor_id(), kernel)) != (pgd_paddr & __PHYSICAL_MASK));
+	vmalloc_sync_one(__va(pgd_paddr + PTRS_PER_PGD * sizeof(pgd_t)), address);
+#endif
+
 	pmd_k = vmalloc_sync_one(__va(pgd_paddr), address);
 	if (!pmd_k)
 		return -1;
@@ -439,11 +509,25 @@ static noinline int vmalloc_fault(unsigned long address)
 	 * happen within a race in page table update. In the later
 	 * case just flush:
 	 */
-	pgd = pgd_offset(current->active_mm, address);
+
 	pgd_ref = pgd_offset_k(address);
 	if (pgd_none(*pgd_ref))
 		return -1;
 
+#ifdef CONFIG_PAX_PER_CPU_PGD
+	BUG_ON(__pa(get_cpu_pgd(smp_processor_id(), kernel)) != (read_cr3() & __PHYSICAL_MASK));
+	pgd = pgd_offset_cpu(smp_processor_id(), user, address);
+	if (pgd_none(*pgd)) {
+		set_pgd(pgd, *pgd_ref);
+		arch_flush_lazy_mmu_mode();
+	} else {
+		BUG_ON(pgd_page_vaddr(*pgd) != pgd_page_vaddr(*pgd_ref));
+	}
+	pgd = pgd_offset_cpu(smp_processor_id(), kernel, address);
+#else
+	pgd = pgd_offset(current->active_mm, address);
+#endif
+
 	if (pgd_none(*pgd)) {
 		set_pgd(pgd, *pgd_ref);
 		arch_flush_lazy_mmu_mode();
@@ -616,7 +700,7 @@ static int is_errata93(struct pt_regs *regs, unsigned long address)
 static int is_errata100(struct pt_regs *regs, unsigned long address)
 {
 #ifdef CONFIG_X86_64
-	if ((regs->cs == __USER32_CS || (regs->cs & (1<<2))) && (address >> 32))
+	if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT)) && (address >> 32))
 		return 1;
 #endif
 	return 0;
@@ -643,9 +727,9 @@ static int is_f00f_bug(struct pt_regs *regs, unsigned long address)
 }
 
 static const char nx_warning[] = KERN_CRIT
-"kernel tried to execute NX-protected page - exploit attempt? (uid: %d)\n";
+"kernel tried to execute NX-protected page - exploit attempt? (uid: %d, task: %s, pid: %d)\n";
 static const char smep_warning[] = KERN_CRIT
-"unable to execute userspace code (SMEP?) (uid: %d)\n";
+"unable to execute userspace code (SMEP?) (uid: %d, task: %s, pid: %d)\n";
 
 static void
 show_fault_oops(struct pt_regs *regs, unsigned long error_code,
@@ -654,7 +738,7 @@ show_fault_oops(struct pt_regs *regs, unsigned long error_code,
 	if (!oops_may_print())
 		return;
 
-	if (error_code & PF_INSTR) {
+	if ((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR)) {
 		unsigned int level;
 		pgd_t *pgd;
 		pte_t *pte;
@@ -665,13 +749,25 @@ show_fault_oops(struct pt_regs *regs, unsigned long error_code,
 		pte = lookup_address_in_pgd(pgd, address, &level);
 
 		if (pte && pte_present(*pte) && !pte_exec(*pte))
-			printk(nx_warning, from_kuid(&init_user_ns, current_uid()));
+			printk(nx_warning, from_kuid_munged(&init_user_ns, current_uid()), current->comm, task_pid_nr(current));
 		if (pte && pte_present(*pte) && pte_exec(*pte) &&
 				(pgd_flags(*pgd) & _PAGE_USER) &&
 				(__read_cr4() & X86_CR4_SMEP))
-			printk(smep_warning, from_kuid(&init_user_ns, current_uid()));
+			printk(smep_warning, from_kuid(&init_user_ns, current_uid()), current->comm, task_pid_nr(current));
 	}
 
+#ifdef CONFIG_PAX_KERNEXEC
+	if (init_mm.start_code <= address && address < init_mm.end_code) {
+		if (current->signal->curr_ip)
+			printk(KERN_EMERG "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n",
+					&current->signal->curr_ip, current->comm, task_pid_nr(current),
+					from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
+		else
+			printk(KERN_EMERG "PAX: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n", current->comm, task_pid_nr(current),
+					from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
+	}
+#endif
+
 	printk(KERN_ALERT "BUG: unable to handle kernel ");
 	if (address < PAGE_SIZE)
 		printk(KERN_CONT "NULL pointer dereference");
@@ -854,6 +950,22 @@ __bad_area_nosemaphore(struct pt_regs *regs, unsigned long error_code,
 				return;
 		}
 #endif
+
+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
+		if (pax_is_fetch_fault(regs, error_code, address)) {
+
+#ifdef CONFIG_PAX_EMUTRAMP
+			switch (pax_handle_fetch_fault(regs)) {
+			case 2:
+				return;
+			}
+#endif
+
+			pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp);
+			do_group_exit(SIGKILL);
+		}
+#endif
+
 		/* Kernel addresses are always protection faults: */
 		if (address >= TASK_SIZE)
 			error_code |= PF_PROT;
@@ -961,7 +1073,7 @@ do_sigbus(struct pt_regs *regs, unsigned long error_code, unsigned long address,
 	if (fault & (VM_FAULT_HWPOISON|VM_FAULT_HWPOISON_LARGE)) {
 		printk(KERN_ERR
 	"MCE: Killing %s:%d due to hardware memory corruption fault at %lx\n",
-			tsk->comm, tsk->pid, address);
+			tsk->comm, task_pid_nr(tsk), address);
 		code = BUS_MCEERR_AR;
 	}
 #endif
@@ -1020,6 +1132,109 @@ static int spurious_fault_check(unsigned long error_code, pte_t *pte)
 	return 1;
 }
 
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
+static inline unsigned long get_limit(unsigned long segment)
+{
+	unsigned long __limit;
+
+	asm("lsll %1,%0" : "=r" (__limit) : "r" (segment));
+	return __limit + 1;
+}
+
+static int pax_handle_pageexec_fault(struct pt_regs *regs, struct mm_struct *mm, unsigned long address, unsigned long error_code)
+{
+	pte_t *pte;
+	pmd_t *pmd;
+	spinlock_t *ptl;
+	unsigned char pte_mask;
+
+	if ((__supported_pte_mask & _PAGE_NX) || (error_code & (PF_PROT|PF_USER)) != (PF_PROT|PF_USER) || v8086_mode(regs) ||
+	    !(mm->pax_flags & MF_PAX_PAGEEXEC))
+		return 0;
+
+	/* PaX: it's our fault, let's handle it if we can */
+
+	/* PaX: take a look at read faults before acquiring any locks */
+	if (unlikely(!(error_code & PF_WRITE) && (regs->ip == address))) {
+		/* instruction fetch attempt from a protected page in user mode */
+		up_read(&mm->mmap_sem);
+
+#ifdef CONFIG_PAX_EMUTRAMP
+		switch (pax_handle_fetch_fault(regs)) {
+		case 2:
+			return 1;
+		}
+#endif
+
+		pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp);
+		do_group_exit(SIGKILL);
+	}
+
+	pmd = pax_get_pmd(mm, address);
+	if (unlikely(!pmd))
+		return 0;
+
+	pte = pte_offset_map_lock(mm, pmd, address, &ptl);
+	if (unlikely(!(pte_val(*pte) & _PAGE_PRESENT) || pte_user(*pte))) {
+		pte_unmap_unlock(pte, ptl);
+		return 0;
+	}
+
+	if (unlikely((error_code & PF_WRITE) && !pte_write(*pte))) {
+		/* write attempt to a protected page in user mode */
+		pte_unmap_unlock(pte, ptl);
+		return 0;
+	}
+
+#ifdef CONFIG_SMP
+	if (likely(address > get_limit(regs->cs) && cpumask_test_cpu(smp_processor_id(), &mm->context.cpu_user_cs_mask)))
+#else
+	if (likely(address > get_limit(regs->cs)))
+#endif
+	{
+		set_pte(pte, pte_mkread(*pte));
+		__flush_tlb_one(address);
+		pte_unmap_unlock(pte, ptl);
+		up_read(&mm->mmap_sem);
+		return 1;
+	}
+
+	pte_mask = _PAGE_ACCESSED | _PAGE_USER | ((error_code & PF_WRITE) << (_PAGE_BIT_DIRTY-1));
+
+	/*
+	 * PaX: fill DTLB with user rights and retry
+	 */
+	__asm__ __volatile__ (
+		"orb %2,(%1)\n"
+#if defined(CONFIG_M586) || defined(CONFIG_M586TSC)
+/*
+ * PaX: let this uncommented 'invlpg' remind us on the behaviour of Intel's
+ * (and AMD's) TLBs. namely, they do not cache PTEs that would raise *any*
+ * page fault when examined during a TLB load attempt. this is true not only
+ * for PTEs holding a non-present entry but also present entries that will
+ * raise a page fault (such as those set up by PaX, or the copy-on-write
+ * mechanism). in effect it means that we do *not* need to flush the TLBs
+ * for our target pages since their PTEs are simply not in the TLBs at all.
+
+ * the best thing in omitting it is that we gain around 15-20% speed in the
+ * fast path of the page fault handler and can get rid of tracing since we
+ * can no longer flush unintended entries.
+ */
+		"invlpg (%0)\n"
+#endif
+		ASM_STAC "\n"
+		__copyuser_seg"testb $0,(%0)\n"
+		ASM_CLAC "\n"
+		"xorb %3,(%1)\n"
+		:
+		: "r" (address), "r" (pte), "q" (pte_mask), "i" (_PAGE_USER)
+		: "memory", "cc");
+	pte_unmap_unlock(pte, ptl);
+	up_read(&mm->mmap_sem);
+	return 1;
+}
+#endif
+
 /*
  * Handle a spurious fault caused by a stale TLB entry.
  *
@@ -1107,6 +1322,10 @@ access_error(unsigned long error_code, struct vm_area_struct *vma)
 {
 	/* This is only called for the current mm, so: */
 	bool foreign = false;
+
+	if ((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR) && !(vma->vm_flags & VM_EXEC))
+		return 1;
+
 	/*
 	 * Make sure to check the VMA so that we do not perform
 	 * faults just to hit a PF_PK as soon as we fill in a
@@ -1178,6 +1397,22 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code,
 	tsk = current;
 	mm = tsk->mm;
 
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+	if (!user_mode(regs) && address < 2 * pax_user_shadow_base) {
+		if (!search_exception_tables(regs->ip)) {
+			printk(KERN_EMERG "PAX: please report this to pageexec@freemail.hu\n");
+			bad_area_nosemaphore(regs, error_code, address, NULL);
+			return;
+		}
+		if (address < pax_user_shadow_base) {
+			printk(KERN_EMERG "PAX: please report this to pageexec@freemail.hu\n");
+			printk(KERN_EMERG "PAX: faulting IP: %pS\n", (void *)regs->ip);
+			show_trace_log_lvl(NULL, NULL, (void *)regs->sp, regs->bp, KERN_EMERG);
+		} else
+			address -= pax_user_shadow_base;
+	}
+#endif
+
 	/*
 	 * Detect and handle instructions that would cause a page fault for
 	 * both a tracked kernel page and a userspace page.
@@ -1304,6 +1539,11 @@ retry:
 		might_sleep();
 	}
 
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
+	if (pax_handle_pageexec_fault(regs, mm, address, error_code))
+		return;
+#endif
+
 	vma = find_vma(mm, address);
 	if (unlikely(!vma)) {
 		bad_area(regs, error_code, address);
@@ -1315,18 +1555,24 @@ retry:
 		bad_area(regs, error_code, address);
 		return;
 	}
-	if (error_code & PF_USER) {
-		/*
-		 * Accessing the stack below %sp is always a bug.
-		 * The large cushion allows instructions like enter
-		 * and pusha to work. ("enter $65535, $31" pushes
-		 * 32 pointers and then decrements %sp by 65535.)
-		 */
-		if (unlikely(address + 65536 + 32 * sizeof(unsigned long) < regs->sp)) {
-			bad_area(regs, error_code, address);
-			return;
-		}
+	/*
+	 * Accessing the stack below %sp is always a bug.
+	 * The large cushion allows instructions like enter
+	 * and pusha to work. ("enter $65535, $31" pushes
+	 * 32 pointers and then decrements %sp by 65535.)
+	 */
+	if (unlikely(address + 65536 + 32 * sizeof(unsigned long) < task_pt_regs(tsk)->sp)) {
+		bad_area(regs, error_code, address);
+		return;
 	}
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (unlikely((mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_end - SEGMEXEC_TASK_SIZE - 1 < address - SEGMEXEC_TASK_SIZE - 1)) {
+		bad_area(regs, error_code, address);
+		return;
+	}
+#endif
+
 	if (unlikely(expand_stack(vma, address))) {
 		bad_area(regs, error_code, address);
 		return;
@@ -1446,3 +1692,292 @@ trace_do_page_fault(struct pt_regs *regs, unsigned long error_code)
 }
 NOKPROBE_SYMBOL(trace_do_page_fault);
 #endif /* CONFIG_TRACING */
+
+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
+static bool pax_is_fetch_fault(struct pt_regs *regs, unsigned long error_code, unsigned long address)
+{
+	struct mm_struct *mm = current->mm;
+	unsigned long ip = regs->ip;
+
+	if (v8086_mode(regs))
+		ip = ((regs->cs & 0xffff) << 4) + (ip & 0xffff);
+
+#ifdef CONFIG_PAX_PAGEEXEC
+	if (mm->pax_flags & MF_PAX_PAGEEXEC) {
+		if ((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR))
+			return true;
+		if (!(error_code & (PF_PROT | PF_WRITE)) && ip == address)
+			return true;
+		return false;
+	}
+#endif
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (mm->pax_flags & MF_PAX_SEGMEXEC) {
+		if (!(error_code & (PF_PROT | PF_WRITE)) && (ip + SEGMEXEC_TASK_SIZE == address))
+			return true;
+		return false;
+	}
+#endif
+
+	return false;
+}
+#endif
+
+#ifdef CONFIG_PAX_EMUTRAMP
+static int pax_handle_fetch_fault_32(struct pt_regs *regs)
+{
+	int err;
+
+	do { /* PaX: libffi trampoline emulation */
+		unsigned char mov, jmp;
+		unsigned int addr1, addr2;
+
+#ifdef CONFIG_X86_64
+		if ((regs->ip + 9) >> 32)
+			break;
+#endif
+
+		err = get_user(mov, (unsigned char __user *)regs->ip);
+		err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1));
+		err |= get_user(jmp, (unsigned char __user *)(regs->ip + 5));
+		err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6));
+
+		if (err)
+			break;
+
+		if (mov == 0xB8 && jmp == 0xE9) {
+			regs->ax = addr1;
+			regs->ip = (unsigned int)(regs->ip + addr2 + 10);
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: gcc trampoline emulation #1 */
+		unsigned char mov1, mov2;
+		unsigned short jmp;
+		unsigned int addr1, addr2;
+
+#ifdef CONFIG_X86_64
+		if ((regs->ip + 11) >> 32)
+			break;
+#endif
+
+		err = get_user(mov1, (unsigned char __user *)regs->ip);
+		err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1));
+		err |= get_user(mov2, (unsigned char __user *)(regs->ip + 5));
+		err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6));
+		err |= get_user(jmp, (unsigned short __user *)(regs->ip + 10));
+
+		if (err)
+			break;
+
+		if (mov1 == 0xB9 && mov2 == 0xB8 && jmp == 0xE0FF) {
+			regs->cx = addr1;
+			regs->ax = addr2;
+			regs->ip = addr2;
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: gcc trampoline emulation #2 */
+		unsigned char mov, jmp;
+		unsigned int addr1, addr2;
+
+#ifdef CONFIG_X86_64
+		if ((regs->ip + 9) >> 32)
+			break;
+#endif
+
+		err = get_user(mov, (unsigned char __user *)regs->ip);
+		err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1));
+		err |= get_user(jmp, (unsigned char __user *)(regs->ip + 5));
+		err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6));
+
+		if (err)
+			break;
+
+		if (mov == 0xB9 && jmp == 0xE9) {
+			regs->cx = addr1;
+			regs->ip = (unsigned int)(regs->ip + addr2 + 10);
+			return 2;
+		}
+	} while (0);
+
+	return 1; /* PaX in action */
+}
+
+#ifdef CONFIG_X86_64
+static int pax_handle_fetch_fault_64(struct pt_regs *regs)
+{
+	int err;
+
+	do { /* PaX: libffi trampoline emulation */
+		unsigned short mov1, mov2, jmp1;
+		unsigned char stcclc, jmp2;
+		unsigned long addr1, addr2;
+
+		err = get_user(mov1, (unsigned short __user *)regs->ip);
+		err |= get_user(addr1, (unsigned long __user *)(regs->ip + 2));
+		err |= get_user(mov2, (unsigned short __user *)(regs->ip + 10));
+		err |= get_user(addr2, (unsigned long __user *)(regs->ip + 12));
+		err |= get_user(stcclc, (unsigned char __user *)(regs->ip + 20));
+		err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 21));
+		err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 23));
+
+		if (err)
+			break;
+
+		if (mov1 == 0xBB49 && mov2 == 0xBA49 && (stcclc == 0xF8 || stcclc == 0xF9) && jmp1 == 0xFF49 && jmp2 == 0xE3) {
+			regs->r11 = addr1;
+			regs->r10 = addr2;
+			if (stcclc == 0xF8)
+				regs->flags &= ~X86_EFLAGS_CF;
+			else
+				regs->flags |= X86_EFLAGS_CF;
+			regs->ip = addr1;
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: gcc trampoline emulation #1 */
+		unsigned short mov1, mov2, jmp1;
+		unsigned char jmp2;
+		unsigned int addr1;
+		unsigned long addr2;
+
+		err = get_user(mov1, (unsigned short __user *)regs->ip);
+		err |= get_user(addr1, (unsigned int __user *)(regs->ip + 2));
+		err |= get_user(mov2, (unsigned short __user *)(regs->ip + 6));
+		err |= get_user(addr2, (unsigned long __user *)(regs->ip + 8));
+		err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 16));
+		err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 18));
+
+		if (err)
+			break;
+
+		if (mov1 == 0xBB41 && mov2 == 0xBA49 && jmp1 == 0xFF49 && jmp2 == 0xE3) {
+			regs->r11 = addr1;
+			regs->r10 = addr2;
+			regs->ip = addr1;
+			return 2;
+		}
+	} while (0);
+
+	do { /* PaX: gcc trampoline emulation #2 */
+		unsigned short mov1, mov2, jmp1;
+		unsigned char jmp2;
+		unsigned long addr1, addr2;
+
+		err = get_user(mov1, (unsigned short __user *)regs->ip);
+		err |= get_user(addr1, (unsigned long __user *)(regs->ip + 2));
+		err |= get_user(mov2, (unsigned short __user *)(regs->ip + 10));
+		err |= get_user(addr2, (unsigned long __user *)(regs->ip + 12));
+		err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 20));
+		err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 22));
+
+		if (err)
+			break;
+
+		if (mov1 == 0xBB49 && mov2 == 0xBA49 && jmp1 == 0xFF49 && jmp2 == 0xE3) {
+			regs->r11 = addr1;
+			regs->r10 = addr2;
+			regs->ip = addr1;
+			return 2;
+		}
+	} while (0);
+
+	return 1; /* PaX in action */
+}
+#endif
+
+/*
+ * PaX: decide what to do with offenders (regs->ip = fault address)
+ *
+ * returns 1 when task should be killed
+ *         2 when gcc trampoline was detected
+ */
+static int pax_handle_fetch_fault(struct pt_regs *regs)
+{
+	if (v8086_mode(regs))
+		return 1;
+
+	if (!(current->mm->pax_flags & MF_PAX_EMUTRAMP))
+		return 1;
+
+#ifdef CONFIG_X86_32
+	return pax_handle_fetch_fault_32(regs);
+#else
+	if (regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT))
+		return pax_handle_fetch_fault_32(regs);
+	else
+		return pax_handle_fetch_fault_64(regs);
+#endif
+}
+#endif
+
+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
+{
+	long i;
+
+	printk(KERN_ERR "PAX: bytes at PC: ");
+	for (i = 0; i < 20; i++) {
+		unsigned char c;
+		if (get_user(c, (unsigned char __force_user *)pc+i))
+			printk(KERN_CONT "?? ");
+		else
+			printk(KERN_CONT "%02x ", c);
+	}
+	printk("\n");
+
+	printk(KERN_ERR "PAX: bytes at SP-%lu: ", (unsigned long)sizeof(long));
+	for (i = -1; i < 80 / (long)sizeof(long); i++) {
+		unsigned long c;
+		if (get_user(c, (unsigned long __force_user *)sp+i)) {
+#ifdef CONFIG_X86_32
+			printk(KERN_CONT "???????? ");
+#else
+			if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT)))
+				printk(KERN_CONT "???????? ???????? ");
+			else
+				printk(KERN_CONT "???????????????? ");
+#endif
+		} else {
+#ifdef CONFIG_X86_64
+			if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT))) {
+				printk(KERN_CONT "%08x ", (unsigned int)c);
+				printk(KERN_CONT "%08x ", (unsigned int)(c >> 32));
+			} else
+#endif
+				printk(KERN_CONT "%0*lx ", 2 * (int)sizeof(long), c);
+		}
+	}
+	printk("\n");
+}
+#endif
+
+/**
+ * probe_kernel_write(): safely attempt to write to a location
+ * @dst: address to write to
+ * @src: pointer to the data that shall be written
+ * @size: size of the data chunk
+ *
+ * Safely write to address @dst from the buffer at @src.  If a kernel fault
+ * happens, handle that and return -EFAULT.
+ */
+long notrace probe_kernel_write(void *dst, const void *src, size_t size)
+{
+	long ret;
+	mm_segment_t old_fs = get_fs();
+
+	set_fs(KERNEL_DS);
+	pagefault_disable();
+	pax_open_kernel();
+	ret = __copy_to_user_inatomic((void __force_user *)dst, src, size);
+	pax_close_kernel();
+	pagefault_enable();
+	set_fs(old_fs);
+
+	return ret ? -EFAULT : 0;
+}
diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c
index b8b6a60..9193b78 100644
--- a/arch/x86/mm/gup.c
+++ b/arch/x86/mm/gup.c
@@ -313,7 +313,7 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write,
 	addr = start;
 	len = (unsigned long) nr_pages << PAGE_SHIFT;
 	end = start + len;
-	if (unlikely(!access_ok(write ? VERIFY_WRITE : VERIFY_READ,
+	if (unlikely(!access_ok_noprefault(write ? VERIFY_WRITE : VERIFY_READ,
 					(void __user *)start, len)))
 		return 0;
 
@@ -389,6 +389,10 @@ int get_user_pages_fast(unsigned long start, int nr_pages, int write,
 		goto slow_irqon;
 #endif
 
+	if (unlikely(!access_ok_noprefault(write ? VERIFY_WRITE : VERIFY_READ,
+					(void __user *)start, len)))
+		return 0;
+
 	/*
 	 * XXX: batch / limit 'nr', to avoid large irq off latency
 	 * needs some instrumenting to determine the common sizes used by
diff --git a/arch/x86/mm/highmem_32.c b/arch/x86/mm/highmem_32.c
index a6d7392..3b105a8 100644
--- a/arch/x86/mm/highmem_32.c
+++ b/arch/x86/mm/highmem_32.c
@@ -35,6 +35,8 @@ void *kmap_atomic_prot(struct page *page, pgprot_t prot)
 	unsigned long vaddr;
 	int idx, type;
 
+	BUG_ON(pgprot_val(prot) & _PAGE_USER);
+
 	preempt_disable();
 	pagefault_disable();
 
@@ -45,7 +47,11 @@ void *kmap_atomic_prot(struct page *page, pgprot_t prot)
 	idx = type + KM_TYPE_NR*smp_processor_id();
 	vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
 	BUG_ON(!pte_none(*(kmap_pte-idx)));
+
+	pax_open_kernel();
 	set_pte(kmap_pte-idx, mk_pte(page, prot));
+	pax_close_kernel();
+
 	arch_flush_lazy_mmu_mode();
 
 	return (void *)vaddr;
diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c
index 740d7ac..4091827 100644
--- a/arch/x86/mm/hugetlbpage.c
+++ b/arch/x86/mm/hugetlbpage.c
@@ -74,23 +74,24 @@ int pud_huge(pud_t pud)
 #ifdef CONFIG_HUGETLB_PAGE
 static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *file,
 		unsigned long addr, unsigned long len,
-		unsigned long pgoff, unsigned long flags)
+		unsigned long pgoff, unsigned long flags, unsigned long offset)
 {
 	struct hstate *h = hstate_file(file);
 	struct vm_unmapped_area_info info;
-
+	
 	info.flags = 0;
 	info.length = len;
 	info.low_limit = current->mm->mmap_legacy_base;
 	info.high_limit = TASK_SIZE;
 	info.align_mask = PAGE_MASK & ~huge_page_mask(h);
 	info.align_offset = 0;
+	info.threadstack_offset = offset;
 	return vm_unmapped_area(&info);
 }
 
 static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
 		unsigned long addr0, unsigned long len,
-		unsigned long pgoff, unsigned long flags)
+		unsigned long pgoff, unsigned long flags, unsigned long offset)
 {
 	struct hstate *h = hstate_file(file);
 	struct vm_unmapped_area_info info;
@@ -102,6 +103,7 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
 	info.high_limit = current->mm->mmap_base;
 	info.align_mask = PAGE_MASK & ~huge_page_mask(h);
 	info.align_offset = 0;
+	info.threadstack_offset = offset;
 	addr = vm_unmapped_area(&info);
 
 	/*
@@ -114,6 +116,12 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
 		VM_BUG_ON(addr != -ENOMEM);
 		info.flags = 0;
 		info.low_limit = TASK_UNMAPPED_BASE;
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (current->mm->pax_flags & MF_PAX_RANDMMAP)
+			info.low_limit += current->mm->delta_mmap;
+#endif
+
 		info.high_limit = TASK_SIZE;
 		addr = vm_unmapped_area(&info);
 	}
@@ -128,10 +136,20 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
 	struct hstate *h = hstate_file(file);
 	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
+	unsigned long pax_task_size = TASK_SIZE;
+	unsigned long offset = gr_rand_threadstack_offset(mm, file, flags);
 
 	if (len & ~huge_page_mask(h))
 		return -EINVAL;
-	if (len > TASK_SIZE)
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (mm->pax_flags & MF_PAX_SEGMEXEC)
+		pax_task_size = SEGMEXEC_TASK_SIZE;
+#endif
+
+	pax_task_size -= PAGE_SIZE;
+
+	if (len > pax_task_size)
 		return -ENOMEM;
 
 	if (flags & MAP_FIXED) {
@@ -140,19 +158,22 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
 		return addr;
 	}
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (addr) {
 		addr = ALIGN(addr, huge_page_size(h));
 		vma = find_vma(mm, addr);
-		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		if (pax_task_size - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
 			return addr;
 	}
 	if (mm->get_unmapped_area == arch_get_unmapped_area)
 		return hugetlb_get_unmapped_area_bottomup(file, addr, len,
-				pgoff, flags);
+				pgoff, flags, offset);
 	else
 		return hugetlb_get_unmapped_area_topdown(file, addr, len,
-				pgoff, flags);
+				pgoff, flags, offset);
 }
 #endif /* CONFIG_HUGETLB_PAGE */
 
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 9d56f27..0d15fff 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -4,6 +4,7 @@
 #include <linux/swap.h>
 #include <linux/memblock.h>
 #include <linux/bootmem.h>	/* for max_low_pfn */
+#include <linux/tboot.h>
 
 #include <asm/cacheflush.h>
 #include <asm/e820.h>
@@ -17,6 +18,7 @@
 #include <asm/proto.h>
 #include <asm/dma.h>		/* for MAX_DMA_PFN */
 #include <asm/microcode.h>
+#include <asm/bios_ebda.h>
 
 /*
  * We need to define the tracepoints somewhere, and tlb.c
@@ -619,7 +621,18 @@ void __init init_mem_mapping(void)
 	early_ioremap_page_table_range_init();
 #endif
 
+#ifdef CONFIG_PAX_PER_CPU_PGD
+	clone_pgd_range(get_cpu_pgd(0, kernel) + KERNEL_PGD_BOUNDARY,
+			swapper_pg_dir + KERNEL_PGD_BOUNDARY,
+			KERNEL_PGD_PTRS);
+	clone_pgd_range(get_cpu_pgd(0, user) + KERNEL_PGD_BOUNDARY,
+			swapper_pg_dir + KERNEL_PGD_BOUNDARY,
+			KERNEL_PGD_PTRS);
+	load_cr3(get_cpu_pgd(0, kernel));
+#else
 	load_cr3(swapper_pg_dir);
+#endif
+
 	__flush_tlb_all();
 
 	early_memtest(0, max_pfn_mapped << PAGE_SHIFT);
@@ -635,10 +648,34 @@ void __init init_mem_mapping(void)
  * Access has to be given to non-kernel-ram areas as well, these contain the PCI
  * mmio resources as well as potential bios/acpi data regions.
  */
+
+#ifdef CONFIG_GRKERNSEC_KMEM
+static unsigned int ebda_start __read_only;
+static unsigned int ebda_end __read_only;
+#endif
+
 int devmem_is_allowed(unsigned long pagenr)
 {
+#ifdef CONFIG_GRKERNSEC_KMEM
+	/* allow BDA */
+	if (!pagenr)
+		return 1;
+	/* allow EBDA */
+	if (pagenr >= ebda_start && pagenr < ebda_end)
+		return 1;
+	/* if tboot is in use, allow access to its hardcoded serial log range */
+	if (tboot_enabled() && ((0x60000 >> PAGE_SHIFT) <= pagenr) && (pagenr < (0x68000 >> PAGE_SHIFT)))
+		return 1;
+	if ((ISA_START_ADDRESS >> PAGE_SHIFT) <= pagenr && pagenr < (ISA_END_ADDRESS >> PAGE_SHIFT))
+		return 1;
+	/* throw out everything else below 1MB */
+	if (pagenr <= 256)
+		return 0;
+#else
 	if (pagenr < 256)
 		return 1;
+#endif
+
 	if (iomem_is_exclusive(pagenr << PAGE_SHIFT))
 		return 0;
 	if (!page_is_ram(pagenr))
@@ -685,8 +722,33 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end)
 	}
 }
 
+#ifdef CONFIG_GRKERNSEC_KMEM
+static inline void gr_init_ebda(void)
+{
+	unsigned int ebda_addr;
+	unsigned int ebda_size = 0;
+
+	ebda_addr = get_bios_ebda();
+	if (ebda_addr) {
+		ebda_size = *(unsigned char *)phys_to_virt(ebda_addr);
+		ebda_size <<= 10;
+	}
+	if (ebda_addr && ebda_size) {
+		ebda_start = ebda_addr >> PAGE_SHIFT;
+		ebda_end = min((unsigned int)PAGE_ALIGN(ebda_addr + ebda_size), (unsigned int)0xa0000) >> PAGE_SHIFT;
+	} else {
+		ebda_start = 0x9f000 >> PAGE_SHIFT;
+		ebda_end = 0xa0000 >> PAGE_SHIFT;
+	}
+}
+#else
+static inline void gr_init_ebda(void) { }
+#endif
+
 void free_initmem(void)
 {
+	gr_init_ebda();
+
 	free_init_pages("unused kernel",
 			(unsigned long)(&__init_begin),
 			(unsigned long)(&__init_end));
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index bd7a9b9..94d80a5 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -62,33 +62,6 @@ static noinline int do_test_wp_bit(void);
 bool __read_mostly __vmalloc_start_set = false;
 
 /*
- * Creates a middle page table and puts a pointer to it in the
- * given global directory entry. This only returns the gd entry
- * in non-PAE compilation mode, since the middle layer is folded.
- */
-static pmd_t * __init one_md_table_init(pgd_t *pgd)
-{
-	pud_t *pud;
-	pmd_t *pmd_table;
-
-#ifdef CONFIG_X86_PAE
-	if (!(pgd_val(*pgd) & _PAGE_PRESENT)) {
-		pmd_table = (pmd_t *)alloc_low_page();
-		paravirt_alloc_pmd(&init_mm, __pa(pmd_table) >> PAGE_SHIFT);
-		set_pgd(pgd, __pgd(__pa(pmd_table) | _PAGE_PRESENT));
-		pud = pud_offset(pgd, 0);
-		BUG_ON(pmd_table != pmd_offset(pud, 0));
-
-		return pmd_table;
-	}
-#endif
-	pud = pud_offset(pgd, 0);
-	pmd_table = pmd_offset(pud, 0);
-
-	return pmd_table;
-}
-
-/*
  * Create a page table and place a pointer to it in a middle page
  * directory entry:
  */
@@ -98,13 +71,28 @@ static pte_t * __init one_page_table_init(pmd_t *pmd)
 		pte_t *page_table = (pte_t *)alloc_low_page();
 
 		paravirt_alloc_pte(&init_mm, __pa(page_table) >> PAGE_SHIFT);
+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
+		set_pmd(pmd, __pmd(__pa(page_table) | _KERNPG_TABLE));
+#else
 		set_pmd(pmd, __pmd(__pa(page_table) | _PAGE_TABLE));
+#endif
 		BUG_ON(page_table != pte_offset_kernel(pmd, 0));
 	}
 
 	return pte_offset_kernel(pmd, 0);
 }
 
+static pmd_t * __init one_md_table_init(pgd_t *pgd)
+{
+	pud_t *pud;
+	pmd_t *pmd_table;
+
+	pud = pud_offset(pgd, 0);
+	pmd_table = pmd_offset(pud, 0);
+
+	return pmd_table;
+}
+
 pmd_t * __init populate_extra_pmd(unsigned long vaddr)
 {
 	int pgd_idx = pgd_index(vaddr);
@@ -209,6 +197,7 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base)
 	int pgd_idx, pmd_idx;
 	unsigned long vaddr;
 	pgd_t *pgd;
+	pud_t *pud;
 	pmd_t *pmd;
 	pte_t *pte = NULL;
 	unsigned long count = page_table_range_init_count(start, end);
@@ -223,8 +212,13 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base)
 	pgd = pgd_base + pgd_idx;
 
 	for ( ; (pgd_idx < PTRS_PER_PGD) && (vaddr != end); pgd++, pgd_idx++) {
-		pmd = one_md_table_init(pgd);
-		pmd = pmd + pmd_index(vaddr);
+		pud = pud_offset(pgd, vaddr);
+		pmd = pmd_offset(pud, vaddr);
+
+#ifdef CONFIG_X86_PAE
+		paravirt_alloc_pmd(&init_mm, __pa(pmd) >> PAGE_SHIFT);
+#endif
+
 		for (; (pmd_idx < PTRS_PER_PMD) && (vaddr != end);
 							pmd++, pmd_idx++) {
 			pte = page_table_kmap_check(one_page_table_init(pmd),
@@ -236,11 +230,20 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base)
 	}
 }
 
-static inline int is_kernel_text(unsigned long addr)
+static inline int is_kernel_text(unsigned long start, unsigned long end)
 {
-	if (addr >= (unsigned long)_text && addr <= (unsigned long)__init_end)
-		return 1;
-	return 0;
+	if ((start >= ktla_ktva((unsigned long)_etext) ||
+	     end <= ktla_ktva((unsigned long)_stext)) &&
+	    (start >= ktla_ktva((unsigned long)_einittext) ||
+	     end <= ktla_ktva((unsigned long)_sinittext)) &&
+
+#ifdef CONFIG_ACPI_SLEEP
+	    (start >= (unsigned long)__va(acpi_wakeup_address) + 0x4000 || end <= (unsigned long)__va(acpi_wakeup_address)) &&
+#endif
+
+	    (start > (unsigned long)__va(0xfffff) || end <= (unsigned long)__va(0xc0000)))
+		return 0;
+	return 1;
 }
 
 /*
@@ -257,9 +260,10 @@ kernel_physical_mapping_init(unsigned long start,
 	unsigned long last_map_addr = end;
 	unsigned long start_pfn, end_pfn;
 	pgd_t *pgd_base = swapper_pg_dir;
-	int pgd_idx, pmd_idx, pte_ofs;
+	unsigned int pgd_idx, pmd_idx, pte_ofs;
 	unsigned long pfn;
 	pgd_t *pgd;
+	pud_t *pud;
 	pmd_t *pmd;
 	pte_t *pte;
 	unsigned pages_2m, pages_4k;
@@ -292,8 +296,13 @@ repeat:
 	pfn = start_pfn;
 	pgd_idx = pgd_index((pfn<<PAGE_SHIFT) + PAGE_OFFSET);
 	pgd = pgd_base + pgd_idx;
-	for (; pgd_idx < PTRS_PER_PGD; pgd++, pgd_idx++) {
-		pmd = one_md_table_init(pgd);
+	for (; pgd_idx < PTRS_PER_PGD && pfn < max_low_pfn; pgd++, pgd_idx++) {
+		pud = pud_offset(pgd, 0);
+		pmd = pmd_offset(pud, 0);
+
+#ifdef CONFIG_X86_PAE
+		paravirt_alloc_pmd(&init_mm, __pa(pmd) >> PAGE_SHIFT);
+#endif
 
 		if (pfn >= end_pfn)
 			continue;
@@ -305,14 +314,13 @@ repeat:
 #endif
 		for (; pmd_idx < PTRS_PER_PMD && pfn < end_pfn;
 		     pmd++, pmd_idx++) {
-			unsigned int addr = pfn * PAGE_SIZE + PAGE_OFFSET;
+			unsigned long address = pfn * PAGE_SIZE + PAGE_OFFSET;
 
 			/*
 			 * Map with big pages if possible, otherwise
 			 * create normal page tables:
 			 */
 			if (use_pse) {
-				unsigned int addr2;
 				pgprot_t prot = PAGE_KERNEL_LARGE;
 				/*
 				 * first pass will use the same initial
@@ -323,11 +331,7 @@ repeat:
 						 _PAGE_PSE);
 
 				pfn &= PMD_MASK >> PAGE_SHIFT;
-				addr2 = (pfn + PTRS_PER_PTE-1) * PAGE_SIZE +
-					PAGE_OFFSET + PAGE_SIZE-1;
-
-				if (is_kernel_text(addr) ||
-				    is_kernel_text(addr2))
+				if (is_kernel_text(address, address + PMD_SIZE))
 					prot = PAGE_KERNEL_LARGE_EXEC;
 
 				pages_2m++;
@@ -344,7 +348,7 @@ repeat:
 			pte_ofs = pte_index((pfn<<PAGE_SHIFT) + PAGE_OFFSET);
 			pte += pte_ofs;
 			for (; pte_ofs < PTRS_PER_PTE && pfn < end_pfn;
-			     pte++, pfn++, pte_ofs++, addr += PAGE_SIZE) {
+			     pte++, pfn++, pte_ofs++, address += PAGE_SIZE) {
 				pgprot_t prot = PAGE_KERNEL;
 				/*
 				 * first pass will use the same initial
@@ -352,7 +356,7 @@ repeat:
 				 */
 				pgprot_t init_prot = __pgprot(PTE_IDENT_ATTR);
 
-				if (is_kernel_text(addr))
+				if (is_kernel_text(address, address + PAGE_SIZE))
 					prot = PAGE_KERNEL_EXEC;
 
 				pages_4k++;
@@ -472,7 +476,7 @@ void __init native_pagetable_init(void)
 
 		pud = pud_offset(pgd, va);
 		pmd = pmd_offset(pud, va);
-		if (!pmd_present(*pmd))
+		if (!pmd_present(*pmd)) // PAX TODO || pmd_large(*pmd))
 			break;
 
 		/* should not be large page here */
@@ -530,12 +534,10 @@ void __init early_ioremap_page_table_range_init(void)
 
 static void __init pagetable_init(void)
 {
-	pgd_t *pgd_base = swapper_pg_dir;
-
-	permanent_kmaps_init(pgd_base);
+	permanent_kmaps_init(swapper_pg_dir);
 }
 
-pteval_t __supported_pte_mask __read_mostly = ~(_PAGE_NX | _PAGE_GLOBAL);
+pteval_t __supported_pte_mask __read_only = ~(_PAGE_NX | _PAGE_GLOBAL);
 EXPORT_SYMBOL_GPL(__supported_pte_mask);
 
 /* user-defined highmem size */
@@ -785,10 +787,10 @@ void __init mem_init(void)
 		((unsigned long)&__init_end -
 		 (unsigned long)&__init_begin) >> 10,
 
-		(unsigned long)&_etext, (unsigned long)&_edata,
-		((unsigned long)&_edata - (unsigned long)&_etext) >> 10,
+		(unsigned long)&_sdata, (unsigned long)&_edata,
+		((unsigned long)&_edata - (unsigned long)&_sdata) >> 10,
 
-		(unsigned long)&_text, (unsigned long)&_etext,
+		ktla_ktva((unsigned long)&_text), ktla_ktva((unsigned long)&_etext),
 		((unsigned long)&_etext - (unsigned long)&_text) >> 10);
 
 	/*
@@ -871,7 +873,7 @@ static noinline int do_test_wp_bit(void)
 const int rodata_test_data = 0xC3;
 EXPORT_SYMBOL_GPL(rodata_test_data);
 
-int kernel_set_to_readonly __read_mostly;
+int kernel_set_to_readonly __read_only;
 
 void set_kernel_text_rw(void)
 {
@@ -881,6 +883,7 @@ void set_kernel_text_rw(void)
 	if (!kernel_set_to_readonly)
 		return;
 
+	start = ktla_ktva(start);
 	pr_debug("Set kernel text: %lx - %lx for read write\n",
 		 start, start+size);
 
@@ -895,6 +898,7 @@ void set_kernel_text_ro(void)
 	if (!kernel_set_to_readonly)
 		return;
 
+	start = ktla_ktva(start);
 	pr_debug("Set kernel text: %lx - %lx for read only\n",
 		 start, start+size);
 
@@ -907,7 +911,7 @@ static void mark_nxdata_nx(void)
 	 * When this called, init has already been executed and released,
 	 * so everything past _etext should be NX.
 	 */
-	unsigned long start = PFN_ALIGN(_etext);
+	unsigned long start = ktla_ktva(PFN_ALIGN(_etext));
 	/*
 	 * This comes from is_kernel_text upper limit. Also HPAGE where used:
 	 */
@@ -923,26 +927,52 @@ void mark_rodata_ro(void)
 	unsigned long start = PFN_ALIGN(_text);
 	unsigned long size = PFN_ALIGN(_etext) - start;
 
-	set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT);
-	printk(KERN_INFO "Write protecting the kernel text: %luk\n",
-		size >> 10);
+#ifdef CONFIG_PAX_KERNEXEC
+	/* PaX: limit KERNEL_CS to actual size */
+	unsigned long limit;
+	struct desc_struct d;
+	int cpu;
 
+	limit = paravirt_enabled() ? ktva_ktla(0xffffffff) : (unsigned long)&_etext;
+	limit = (limit - 1UL) >> PAGE_SHIFT;
+
+	memset(__LOAD_PHYSICAL_ADDR + PAGE_OFFSET, POISON_FREE_INITMEM, PAGE_SIZE);
+	for (cpu = 0; cpu < nr_cpu_ids; cpu++) {
+		pack_descriptor(&d, get_desc_base(&get_cpu_gdt_table(cpu)[GDT_ENTRY_KERNEL_CS]), limit, 0x9B, 0xC);
+		write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_KERNEL_CS, &d, DESCTYPE_S);
+		write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_KERNEXEC_KERNEL_CS, &d, DESCTYPE_S);
+	}
+
+#ifdef CONFIG_MODULES
+	set_memory_4k((unsigned long)MODULES_EXEC_VADDR, (MODULES_EXEC_END - MODULES_EXEC_VADDR) >> PAGE_SHIFT);
+#endif
+#endif
+
+	start = ktla_ktva(start);
+#ifdef CONFIG_PAX_KERNEXEC
+	/* PaX: make KERNEL_CS read-only */
+	if (!paravirt_enabled()) {
+#endif
 	kernel_set_to_readonly = 1;
 
+	set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT);
+	printk(KERN_INFO "Write protecting the kernel text: %luk\n", size >> 10);
+
 #ifdef CONFIG_CPA_DEBUG
-	printk(KERN_INFO "Testing CPA: Reverting %lx-%lx\n",
-		start, start+size);
+	printk(KERN_INFO "Testing CPA: Reverting %lx-%lx\n", start, start+size);
 	set_pages_rw(virt_to_page(start), size>>PAGE_SHIFT);
 
 	printk(KERN_INFO "Testing CPA: write protecting again\n");
 	set_pages_ro(virt_to_page(start), size>>PAGE_SHIFT);
 #endif
+#ifdef CONFIG_PAX_KERNEXEC
+	}
+#endif
 
 	start += size;
-	size = (unsigned long)__end_rodata - start;
+	size = PFN_ALIGN(_sdata) - start;
 	set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT);
-	printk(KERN_INFO "Write protecting the kernel read-only data: %luk\n",
-		size >> 10);
+	printk(KERN_INFO "Write protecting the kernel read-only data: %luk\n", size >> 10);
 	rodata_test();
 
 #ifdef CONFIG_CPA_DEBUG
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 214afda..7fd6c3f 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -138,7 +138,7 @@ int kernel_ident_mapping_init(struct x86_mapping_info *info, pgd_t *pgd_page,
  * around without checking the pgd every time.
  */
 
-pteval_t __supported_pte_mask __read_mostly = ~0;
+pteval_t __supported_pte_mask __read_only = ~_PAGE_NX;
 EXPORT_SYMBOL_GPL(__supported_pte_mask);
 
 int force_personality32;
@@ -171,7 +171,12 @@ void sync_global_pgds(unsigned long start, unsigned long end, int removed)
 
 	for (address = start; address <= end; address += PGDIR_SIZE) {
 		const pgd_t *pgd_ref = pgd_offset_k(address);
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+		unsigned long cpu;
+#else
 		struct page *page;
+#endif
 
 		/*
 		 * When it is called after memory hot remove, pgd_none()
@@ -182,6 +187,25 @@ void sync_global_pgds(unsigned long start, unsigned long end, int removed)
 			continue;
 
 		spin_lock(&pgd_lock);
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+		for (cpu = 0; cpu < nr_cpu_ids; ++cpu) {
+			pgd_t *pgd = pgd_offset_cpu(cpu, user, address);
+
+			if (!pgd_none(*pgd_ref) && !pgd_none(*pgd))
+				BUG_ON(pgd_page_vaddr(*pgd)
+				       != pgd_page_vaddr(*pgd_ref));
+
+			if (removed) {
+				if (pgd_none(*pgd_ref) && !pgd_none(*pgd))
+					pgd_clear(pgd);
+			} else {
+				if (pgd_none(*pgd))
+					set_pgd(pgd, *pgd_ref);
+			}
+
+			pgd = pgd_offset_cpu(cpu, kernel, address);
+#else
 		list_for_each_entry(page, &pgd_list, lru) {
 			pgd_t *pgd;
 			spinlock_t *pgt_lock;
@@ -190,6 +214,7 @@ void sync_global_pgds(unsigned long start, unsigned long end, int removed)
 			/* the pgt_lock only for Xen */
 			pgt_lock = &pgd_page_get_mm(page)->page_table_lock;
 			spin_lock(pgt_lock);
+#endif
 
 			if (!pgd_none(*pgd_ref) && !pgd_none(*pgd))
 				BUG_ON(pgd_page_vaddr(*pgd)
@@ -203,7 +228,10 @@ void sync_global_pgds(unsigned long start, unsigned long end, int removed)
 					set_pgd(pgd, *pgd_ref);
 			}
 
+#ifndef CONFIG_PAX_PER_CPU_PGD
 			spin_unlock(pgt_lock);
+#endif
+
 		}
 		spin_unlock(&pgd_lock);
 	}
@@ -236,7 +264,7 @@ static pud_t *fill_pud(pgd_t *pgd, unsigned long vaddr)
 {
 	if (pgd_none(*pgd)) {
 		pud_t *pud = (pud_t *)spp_getpage();
-		pgd_populate(&init_mm, pgd, pud);
+		pgd_populate_kernel(&init_mm, pgd, pud);
 		if (pud != pud_offset(pgd, 0))
 			printk(KERN_ERR "PAGETABLE BUG #00! %p <-> %p\n",
 			       pud, pud_offset(pgd, 0));
@@ -248,7 +276,7 @@ static pmd_t *fill_pmd(pud_t *pud, unsigned long vaddr)
 {
 	if (pud_none(*pud)) {
 		pmd_t *pmd = (pmd_t *) spp_getpage();
-		pud_populate(&init_mm, pud, pmd);
+		pud_populate_kernel(&init_mm, pud, pmd);
 		if (pmd != pmd_offset(pud, 0))
 			printk(KERN_ERR "PAGETABLE BUG #01! %p <-> %p\n",
 			       pmd, pmd_offset(pud, 0));
@@ -277,7 +305,9 @@ void set_pte_vaddr_pud(pud_t *pud_page, unsigned long vaddr, pte_t new_pte)
 	pmd = fill_pmd(pud, vaddr);
 	pte = fill_pte(pmd, vaddr);
 
+	pax_open_kernel();
 	set_pte(pte, new_pte);
+	pax_close_kernel();
 
 	/*
 	 * It's enough to flush this one mapping.
@@ -339,14 +369,12 @@ static void __init __init_extra_mapping(unsigned long phys, unsigned long size,
 		pgd = pgd_offset_k((unsigned long)__va(phys));
 		if (pgd_none(*pgd)) {
 			pud = (pud_t *) spp_getpage();
-			set_pgd(pgd, __pgd(__pa(pud) | _KERNPG_TABLE |
-						_PAGE_USER));
+			set_pgd(pgd, __pgd(__pa(pud) | _PAGE_TABLE));
 		}
 		pud = pud_offset(pgd, (unsigned long)__va(phys));
 		if (pud_none(*pud)) {
 			pmd = (pmd_t *) spp_getpage();
-			set_pud(pud, __pud(__pa(pmd) | _KERNPG_TABLE |
-						_PAGE_USER));
+			set_pud(pud, __pud(__pa(pmd) | _PAGE_TABLE));
 		}
 		pmd = pmd_offset(pud, phys);
 		BUG_ON(!pmd_none(*pmd));
@@ -587,7 +615,7 @@ phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end,
 					      prot);
 
 		spin_lock(&init_mm.page_table_lock);
-		pud_populate(&init_mm, pud, pmd);
+		pud_populate_kernel(&init_mm, pud, pmd);
 		spin_unlock(&init_mm.page_table_lock);
 	}
 	__flush_tlb_all();
@@ -628,7 +656,7 @@ kernel_physical_mapping_init(unsigned long start,
 						 page_size_mask);
 
 		spin_lock(&init_mm.page_table_lock);
-		pgd_populate(&init_mm, pgd, pud);
+		pgd_populate_kernel(&init_mm, pgd, pud);
 		spin_unlock(&init_mm.page_table_lock);
 		pgd_changed = true;
 	}
@@ -1078,7 +1106,7 @@ void __init mem_init(void)
 const int rodata_test_data = 0xC3;
 EXPORT_SYMBOL_GPL(rodata_test_data);
 
-int kernel_set_to_readonly;
+int kernel_set_to_readonly __read_only;
 
 void set_kernel_text_rw(void)
 {
@@ -1107,8 +1135,7 @@ void set_kernel_text_ro(void)
 	if (!kernel_set_to_readonly)
 		return;
 
-	pr_debug("Set kernel text: %lx - %lx for read only\n",
-		 start, end);
+	pr_debug("Set kernel text: %lx - %lx for read only\n", start, end);
 
 	/*
 	 * Set the kernel identity mapping for text RO.
@@ -1119,18 +1146,23 @@ void set_kernel_text_ro(void)
 void mark_rodata_ro(void)
 {
 	unsigned long start = PFN_ALIGN(_text);
+#ifdef CONFIG_PAX_KERNEXEC
+	unsigned long addr;
+	unsigned long end = PFN_ALIGN(_sdata);
+	unsigned long text_end = end;
+#else
 	unsigned long rodata_start = PFN_ALIGN(__start_rodata);
 	unsigned long end = (unsigned long) &__end_rodata_hpage_align;
 	unsigned long text_end = PFN_ALIGN(&__stop___ex_table);
 	unsigned long rodata_end = PFN_ALIGN(&__end_rodata);
+#endif
 	unsigned long all_end;
 
-	printk(KERN_INFO "Write protecting the kernel read-only data: %luk\n",
-	       (end - start) >> 10);
-	set_memory_ro(start, (end - start) >> PAGE_SHIFT);
-
 	kernel_set_to_readonly = 1;
 
+	printk(KERN_INFO "Write protecting the kernel read-only data: %luk\n", (end - start) >> 10);
+	set_memory_ro(start, (end - start) >> PAGE_SHIFT);
+
 	/*
 	 * The rodata/data/bss/brk section (but not the kernel text!)
 	 * should also be not-executable.
@@ -1156,12 +1188,54 @@ void mark_rodata_ro(void)
 	set_memory_ro(start, (end-start) >> PAGE_SHIFT);
 #endif
 
+#ifdef CONFIG_PAX_KERNEXEC
+	/* PaX: ensure that kernel code/rodata is read-only, the rest is non-executable */
+	for (addr = __START_KERNEL_map; addr < __START_KERNEL_map + KERNEL_IMAGE_SIZE; addr += PMD_SIZE) {
+		pgd_t *pgd;
+		pud_t *pud;
+		pmd_t *pmd;
+
+		pgd = pgd_offset_k(addr);
+		pud = pud_offset(pgd, addr);
+		pmd = pmd_offset(pud, addr);
+		if (!pmd_present(*pmd))
+			continue;
+		if (addr >= (unsigned long)_text)
+			BUG_ON(!pmd_large(*pmd));
+		if ((unsigned long)_text <= addr && addr < (unsigned long)_sdata)
+			BUG_ON(pmd_write(*pmd));
+//			set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW));
+		else
+			BUG_ON(!(pmd_flags(*pmd) & _PAGE_NX));
+//			set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask)));
+	}
+
+	addr = (unsigned long)__va(__pa(__START_KERNEL_map));
+	end = addr + KERNEL_IMAGE_SIZE;
+	for (; addr < end; addr += PMD_SIZE) {
+		pgd_t *pgd;
+		pud_t *pud;
+		pmd_t *pmd;
+
+		pgd = pgd_offset_k(addr);
+		pud = pud_offset(pgd, addr);
+		pmd = pmd_offset(pud, addr);
+		if (!pmd_present(*pmd))
+			continue;
+		if (addr >= (unsigned long)_text)
+			BUG_ON(!pmd_large(*pmd));
+		if ((unsigned long)__va(__pa(_text)) <= addr && addr < (unsigned long)__va(__pa(_sdata)))
+			BUG_ON(pmd_write(*pmd));
+//			set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW));
+	}
+#else
 	free_init_pages("unused kernel",
 			(unsigned long) __va(__pa_symbol(text_end)),
 			(unsigned long) __va(__pa_symbol(rodata_start)));
 	free_init_pages("unused kernel",
 			(unsigned long) __va(__pa_symbol(rodata_end)),
 			(unsigned long) __va(__pa_symbol(_sdata)));
+#endif
 
 	debug_checkwx();
 }
diff --git a/arch/x86/mm/iomap_32.c b/arch/x86/mm/iomap_32.c
index 9c0ff04..9020d5f 100644
--- a/arch/x86/mm/iomap_32.c
+++ b/arch/x86/mm/iomap_32.c
@@ -65,7 +65,11 @@ void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot)
 	type = kmap_atomic_idx_push();
 	idx = type + KM_TYPE_NR * smp_processor_id();
 	vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
+
+	pax_open_kernel();
 	set_pte(kmap_pte - idx, pfn_pte(pfn, prot));
+	pax_close_kernel();
+
 	arch_flush_lazy_mmu_mode();
 
 	return (void *)vaddr;
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 0d8d53d..74815a4 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -59,8 +59,8 @@ static int __ioremap_check_ram(unsigned long start_pfn, unsigned long nr_pages,
 	unsigned long i;
 
 	for (i = 0; i < nr_pages; ++i)
-		if (pfn_valid(start_pfn + i) &&
-		    !PageReserved(pfn_to_page(start_pfn + i)))
+		if (pfn_valid(start_pfn + i) && (start_pfn + i >= 0x100 ||
+		    !PageReserved(pfn_to_page(start_pfn + i))))
 			return 1;
 
 	return 0;
@@ -81,7 +81,7 @@ static int __ioremap_check_ram(unsigned long start_pfn, unsigned long nr_pages,
  * caller shouldn't need to know that small detail.
  */
 static void __iomem *__ioremap_caller(resource_size_t phys_addr,
-		unsigned long size, enum page_cache_mode pcm, void *caller)
+		resource_size_t size, enum page_cache_mode pcm, void *caller)
 {
 	unsigned long offset, vaddr;
 	resource_size_t pfn, last_pfn, last_addr;
@@ -332,7 +332,7 @@ EXPORT_SYMBOL(ioremap_prot);
  *
  * Caller must ensure there is only one unmapping for the same pointer.
  */
-void iounmap(volatile void __iomem *addr)
+void iounmap(const volatile void __iomem *addr)
 {
 	struct vm_struct *p, *o;
 
@@ -395,31 +395,37 @@ int __init arch_ioremap_pmd_supported(void)
  */
 void *xlate_dev_mem_ptr(phys_addr_t phys)
 {
-	unsigned long start  = phys &  PAGE_MASK;
-	unsigned long offset = phys & ~PAGE_MASK;
-	void *vaddr;
+	phys_addr_t pfn = phys >> PAGE_SHIFT;
 
-	/* If page is RAM, we can use __va. Otherwise ioremap and unmap. */
-	if (page_is_ram(start >> PAGE_SHIFT))
-		return __va(phys);
+	if (page_is_ram(pfn)) {
+#ifdef CONFIG_HIGHMEM
+		if (pfn >= max_low_pfn)
+			return kmap_high(pfn_to_page(pfn));
+		else
+#endif
+			return __va(phys);
+	}
 
-	vaddr = ioremap_cache(start, PAGE_SIZE);
-	/* Only add the offset on success and return NULL if the ioremap() failed: */
-	if (vaddr)
-		vaddr += offset;
-
-	return vaddr;
+	return (void __force *)ioremap_cache(phys, 1);
 }
 
 void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr)
 {
-	if (page_is_ram(phys >> PAGE_SHIFT))
+	phys_addr_t pfn = phys >> PAGE_SHIFT;
+
+	if (page_is_ram(pfn)) {
+#ifdef CONFIG_HIGHMEM
+		if (pfn >= max_low_pfn)
+			kunmap_high(pfn_to_page(pfn));
+#endif
 		return;
+	}
 
-	iounmap((void __iomem *)((unsigned long)addr & PAGE_MASK));
+	iounmap((void __iomem __force *)addr);
 }
 
-static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __page_aligned_bss;
+static pte_t __bm_pte[PAGE_SIZE/sizeof(pte_t)] __page_aligned_rodata;
+static pte_t *bm_pte __read_only = __bm_pte;
 
 static inline pmd_t * __init early_ioremap_pmd(unsigned long addr)
 {
@@ -455,8 +461,14 @@ void __init early_ioremap_init(void)
 	early_ioremap_setup();
 
 	pmd = early_ioremap_pmd(fix_to_virt(FIX_BTMAP_BEGIN));
-	memset(bm_pte, 0, sizeof(bm_pte));
-	pmd_populate_kernel(&init_mm, pmd, bm_pte);
+	if (pmd_none(*pmd))
+#ifdef CONFIG_COMPAT_VDSO
+		pmd_populate_user(&init_mm, pmd, __bm_pte);
+#else
+		pmd_populate_kernel(&init_mm, pmd, __bm_pte);
+#endif
+	else
+		bm_pte = (pte_t *)pmd_page_vaddr(*pmd);
 
 	/*
 	 * The boot-ioremap range spans multiple pmds, for which
diff --git a/arch/x86/mm/kmemcheck/kmemcheck.c b/arch/x86/mm/kmemcheck/kmemcheck.c
index b4f2e7e..96c9c3e 100644
--- a/arch/x86/mm/kmemcheck/kmemcheck.c
+++ b/arch/x86/mm/kmemcheck/kmemcheck.c
@@ -628,9 +628,9 @@ bool kmemcheck_fault(struct pt_regs *regs, unsigned long address,
 	 * memory (e.g. tracked pages)? For now, we need this to avoid
 	 * invoking kmemcheck for PnP BIOS calls.
 	 */
-	if (regs->flags & X86_VM_MASK)
+	if (v8086_mode(regs))
 		return false;
-	if (regs->cs != __KERNEL_CS)
+	if (regs->cs != __KERNEL_CS && regs->cs != __KERNEXEC_KERNEL_CS)
 		return false;
 
 	pte = kmemcheck_pte_lookup(address);
diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c
index d2dc043..4bc6d52 100644
--- a/arch/x86/mm/mmap.c
+++ b/arch/x86/mm/mmap.c
@@ -52,7 +52,7 @@ static unsigned long stack_maxrandom_size(void)
  * Leave an at least ~128 MB hole with possible stack randomization.
  */
 #define MIN_GAP (128*1024*1024UL + stack_maxrandom_size())
-#define MAX_GAP (TASK_SIZE/6*5)
+#define MAX_GAP (pax_task_size/6*5)
 
 static int mmap_is_legacy(void)
 {
@@ -81,16 +81,41 @@ unsigned long arch_mmap_rnd(void)
 	return rnd << PAGE_SHIFT;
 }
 
-static unsigned long mmap_base(unsigned long rnd)
+static unsigned long mmap_base(struct mm_struct *mm, unsigned long rnd)
 {
 	unsigned long gap = rlimit(RLIMIT_STACK);
+	unsigned long pax_task_size = TASK_SIZE;
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (mm->pax_flags & MF_PAX_SEGMEXEC)
+		pax_task_size = SEGMEXEC_TASK_SIZE;
+#endif
 
 	if (gap < MIN_GAP)
 		gap = MIN_GAP;
 	else if (gap > MAX_GAP)
 		gap = MAX_GAP;
 
-	return PAGE_ALIGN(TASK_SIZE - gap - rnd);
+	return PAGE_ALIGN(pax_task_size - gap - rnd);
+}
+
+/*
+ * Bottom-up (legacy) layout on X86_32 did not support randomization, X86_64
+ * does, but not when emulating X86_32
+ */
+static unsigned long mmap_legacy_base(struct mm_struct *mm, unsigned long rnd)
+{
+	if (mmap_is_ia32()) {
+
+#ifdef CONFIG_PAX_SEGMEXEC
+		if (mm->pax_flags & MF_PAX_SEGMEXEC)
+			return SEGMEXEC_TASK_UNMAPPED_BASE;
+		else
+#endif
+
+		return TASK_UNMAPPED_BASE;
+	} else
+		return TASK_UNMAPPED_BASE + rnd;
 }
 
 /*
@@ -101,18 +126,29 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 {
 	unsigned long random_factor = 0UL;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
 	if (current->flags & PF_RANDOMIZE)
 		random_factor = arch_mmap_rnd();
 
-	mm->mmap_legacy_base = TASK_UNMAPPED_BASE + random_factor;
+	mm->mmap_legacy_base = mmap_legacy_base(mm, random_factor);
 
 	if (mmap_is_legacy()) {
 		mm->mmap_base = mm->mmap_legacy_base;
 		mm->get_unmapped_area = arch_get_unmapped_area;
 	} else {
-		mm->mmap_base = mmap_base(random_factor);
+		mm->mmap_base = mmap_base(mm, random_factor);
 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
 	}
+
+#ifdef CONFIG_PAX_RANDMMAP
+	if (mm->pax_flags & MF_PAX_RANDMMAP) {
+		mm->mmap_legacy_base += mm->delta_mmap;
+		mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
+	}
+#endif
+
 }
 
 const char *arch_vma_name(struct vm_area_struct *vma)
diff --git a/arch/x86/mm/mmio-mod.c b/arch/x86/mm/mmio-mod.c
index 0057a7acc..95c7edd 100644
--- a/arch/x86/mm/mmio-mod.c
+++ b/arch/x86/mm/mmio-mod.c
@@ -194,7 +194,7 @@ static void pre(struct kmmio_probe *p, struct pt_regs *regs,
 		break;
 	default:
 		{
-			unsigned char *ip = (unsigned char *)instptr;
+			unsigned char *ip = (unsigned char *)ktla_ktva(instptr);
 			my_trace->opcode = MMIO_UNKNOWN_OP;
 			my_trace->width = 0;
 			my_trace->value = (*ip) << 16 | *(ip + 1) << 8 |
@@ -234,7 +234,7 @@ static void post(struct kmmio_probe *p, unsigned long condition,
 static void ioremap_trace_core(resource_size_t offset, unsigned long size,
 							void __iomem *addr)
 {
-	static atomic_t next_id;
+	static atomic_unchecked_t next_id;
 	struct remap_trace *trace = kmalloc(sizeof(*trace), GFP_KERNEL);
 	/* These are page-unaligned. */
 	struct mmiotrace_map map = {
@@ -258,7 +258,7 @@ static void ioremap_trace_core(resource_size_t offset, unsigned long size,
 			.private = trace
 		},
 		.phys = offset,
-		.id = atomic_inc_return(&next_id)
+		.id = atomic_inc_return_unchecked(&next_id)
 	};
 	map.map_id = trace->id;
 
@@ -290,7 +290,7 @@ void mmiotrace_ioremap(resource_size_t offset, unsigned long size,
 	ioremap_trace_core(offset, size, addr);
 }
 
-static void iounmap_trace_core(volatile void __iomem *addr)
+static void iounmap_trace_core(const volatile void __iomem *addr)
 {
 	struct mmiotrace_map map = {
 		.phys = 0,
@@ -328,7 +328,7 @@ not_enabled:
 	}
 }
 
-void mmiotrace_iounmap(volatile void __iomem *addr)
+void mmiotrace_iounmap(const volatile void __iomem *addr)
 {
 	might_sleep();
 	if (is_enabled()) /* recheck and proper locking in *_core() */
diff --git a/arch/x86/mm/mpx.c b/arch/x86/mm/mpx.c
index 8047687..6351be43 100644
--- a/arch/x86/mm/mpx.c
+++ b/arch/x86/mm/mpx.c
@@ -193,7 +193,7 @@ static int mpx_insn_decode(struct insn *insn,
 	 */
 	if (!nr_copied)
 		return -EFAULT;
-	insn_init(insn, buf, nr_copied, x86_64);
+	insn_init(insn, (void *)ktva_ktla((unsigned long)buf), nr_copied, x86_64);
 	insn_get_length(insn);
 	/*
 	 * copy_from_user() tries to get as many bytes as we could see in
@@ -293,11 +293,11 @@ siginfo_t *mpx_generate_siginfo(struct pt_regs *regs)
 	 * We were not able to extract an address from the instruction,
 	 * probably because there was something invalid in it.
 	 */
-	if (info->si_addr == (void *)-1) {
+	if (info->si_addr == (void __user *)-1) {
 		err = -EINVAL;
 		goto err_out;
 	}
-	trace_mpx_bounds_register_exception(info->si_addr, bndreg);
+	trace_mpx_bounds_register_exception((void __force_kernel *)info->si_addr, bndreg);
 	return info;
 err_out:
 	/* info might be NULL, but kfree() handles that */
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index f70c1ff..fdb449c 100644
--- a/arch/x86/mm/numa.c
+++ b/arch/x86/mm/numa.c
@@ -529,7 +529,7 @@ static void __init numa_clear_kernel_node_hotplug(void)
 	}
 }
 
-static int __init numa_register_memblks(struct numa_meminfo *mi)
+static int __init __intentional_overflow(-1) numa_register_memblks(struct numa_meminfo *mi)
 {
 	unsigned long uninitialized_var(pfn_align);
 	int i, nid;
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 01be9ec..2b8c8c7 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -258,7 +258,7 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address,
 	 */
 #ifdef CONFIG_PCI_BIOS
 	if (pcibios_enabled && within(pfn, BIOS_BEGIN >> PAGE_SHIFT, BIOS_END >> PAGE_SHIFT))
-		pgprot_val(forbidden) |= _PAGE_NX;
+		pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask;
 #endif
 
 	/*
@@ -266,14 +266,14 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address,
 	 * Does not cover __inittext since that is gone later on. On
 	 * 64bit we do not enforce !NX on the low mapping
 	 */
-	if (within(address, (unsigned long)_text, (unsigned long)_etext))
-		pgprot_val(forbidden) |= _PAGE_NX;
+	if (within(address, ktla_ktva((unsigned long)_text), ktla_ktva((unsigned long)_etext)))
+		pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask;
 
 	/*
 	 * The .rodata section needs to be read-only. Using the pfn
 	 * catches all aliases.
 	 */
-	if (within(pfn, __pa_symbol(__start_rodata) >> PAGE_SHIFT,
+	if (kernel_set_to_readonly && within(pfn, __pa_symbol(__start_rodata) >> PAGE_SHIFT,
 		   __pa_symbol(__end_rodata) >> PAGE_SHIFT))
 		pgprot_val(forbidden) |= _PAGE_RW;
 
@@ -314,6 +314,13 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address,
 	}
 #endif
 
+#ifdef CONFIG_PAX_KERNEXEC
+	if (within(pfn, __pa(ktla_ktva((unsigned long)&_text)), __pa((unsigned long)&_sdata))) {
+		pgprot_val(forbidden) |= _PAGE_RW;
+		pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask;
+	}
+#endif
+
 	prot = __pgprot(pgprot_val(prot) & ~pgprot_val(forbidden));
 
 	return prot;
@@ -450,23 +457,37 @@ EXPORT_SYMBOL_GPL(slow_virt_to_phys);
 static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
 {
 	/* change init_mm */
+	pax_open_kernel();
 	set_pte_atomic(kpte, pte);
+
 #ifdef CONFIG_X86_32
 	if (!SHARED_KERNEL_PMD) {
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+		unsigned long cpu;
+#else
 		struct page *page;
+#endif
 
+#ifdef CONFIG_PAX_PER_CPU_PGD
+		for (cpu = 0; cpu < nr_cpu_ids; ++cpu) {
+			pgd_t *pgd = get_cpu_pgd(cpu, kernel);
+#else
 		list_for_each_entry(page, &pgd_list, lru) {
-			pgd_t *pgd;
+			pgd_t *pgd = (pgd_t *)page_address(page);
+#endif
+
 			pud_t *pud;
 			pmd_t *pmd;
 
-			pgd = (pgd_t *)page_address(page) + pgd_index(address);
+			pgd += pgd_index(address);
 			pud = pud_offset(pgd, address);
 			pmd = pmd_offset(pud, address);
 			set_pte_atomic((pte_t *)pmd, pte);
 		}
 	}
 #endif
+	pax_close_kernel();
 }
 
 static int
@@ -704,6 +725,8 @@ __split_large_page(struct cpa_data *cpa, pte_t *kpte, unsigned long address,
 }
 
 static int split_large_page(struct cpa_data *cpa, pte_t *kpte,
+			    unsigned long address) __must_hold(&cpa_lock);
+static int split_large_page(struct cpa_data *cpa, pte_t *kpte,
 			    unsigned long address)
 {
 	struct page *base;
@@ -1157,6 +1180,7 @@ static int __cpa_process_fault(struct cpa_data *cpa, unsigned long vaddr,
 	}
 }
 
+static int __change_page_attr(struct cpa_data *cpa, int primary) __must_hold(&cpa_lock);
 static int __change_page_attr(struct cpa_data *cpa, int primary)
 {
 	unsigned long address;
@@ -1215,7 +1239,9 @@ repeat:
 		 * Do we really change anything ?
 		 */
 		if (pte_val(old_pte) != pte_val(new_pte)) {
+			pax_open_kernel();
 			set_pte_atomic(kpte, new_pte);
+			pax_close_kernel();
 			cpa->flags |= CPA_FLUSHTLB;
 		}
 		cpa->numpages = 1;
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index faec01e..437ec71 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -589,7 +589,7 @@ int free_memtype(u64 start, u64 end)
 
 	if (IS_ERR(entry)) {
 		pr_info("x86/PAT: %s:%d freeing invalid memtype [mem %#010Lx-%#010Lx]\n",
-			current->comm, current->pid, start, end - 1);
+			current->comm, task_pid_nr(current), start, end - 1);
 		return -EINVAL;
 	}
 
@@ -712,8 +712,8 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size)
 
 	while (cursor < to) {
 		if (!devmem_is_allowed(pfn)) {
-			pr_info("x86/PAT: Program %s tried to access /dev/mem between [mem %#010Lx-%#010Lx], PAT prevents it\n",
-				current->comm, from, to - 1);
+			pr_info("x86/PAT: Program %s tried to access /dev/mem between [mem %#010Lx-%#010Lx] (%#010Lx), PAT prevents it\n",
+				current->comm, from, to - 1, cursor);
 			return 0;
 		}
 		cursor += PAGE_SIZE;
@@ -783,7 +783,7 @@ int kernel_map_sync_memtype(u64 base, unsigned long size,
 
 	if (ioremap_change_attr((unsigned long)__va(base), id_sz, pcm) < 0) {
 		pr_info("x86/PAT: %s:%d ioremap_change_attr failed %s for [mem %#010Lx-%#010Lx]\n",
-			current->comm, current->pid,
+			current->comm, task_pid_nr(current),
 			cattr_name(pcm),
 			base, (unsigned long long)(base + size-1));
 		return -EINVAL;
@@ -818,7 +818,7 @@ static int reserve_pfn_range(u64 paddr, unsigned long size, pgprot_t *vma_prot,
 		pcm = lookup_memtype(paddr);
 		if (want_pcm != pcm) {
 			pr_warn("x86/PAT: %s:%d map pfn RAM range req %s for [mem %#010Lx-%#010Lx], got %s\n",
-				current->comm, current->pid,
+				current->comm, task_pid_nr(current),
 				cattr_name(want_pcm),
 				(unsigned long long)paddr,
 				(unsigned long long)(paddr + size - 1),
@@ -839,7 +839,7 @@ static int reserve_pfn_range(u64 paddr, unsigned long size, pgprot_t *vma_prot,
 		    !is_new_memtype_allowed(paddr, size, want_pcm, pcm)) {
 			free_memtype(paddr, paddr + size);
 			pr_err("x86/PAT: %s:%d map pfn expected mapping type %s for [mem %#010Lx-%#010Lx], got %s\n",
-			       current->comm, current->pid,
+			       current->comm, task_pid_nr(current),
 			       cattr_name(want_pcm),
 			       (unsigned long long)paddr,
 			       (unsigned long long)(paddr + size - 1),
diff --git a/arch/x86/mm/pat_rbtree.c b/arch/x86/mm/pat_rbtree.c
index 2f770225..22a4d23 100644
--- a/arch/x86/mm/pat_rbtree.c
+++ b/arch/x86/mm/pat_rbtree.c
@@ -171,7 +171,7 @@ success:
 
 failure:
 	pr_info("x86/PAT: %s:%d conflicting memory types %Lx-%Lx %s<->%s\n",
-		current->comm, current->pid, start, end,
+		current->comm, task_pid_nr(current), start, end,
 		cattr_name(found_type), cattr_name(match->type));
 	return -EBUSY;
 }
diff --git a/arch/x86/mm/pf_in.c b/arch/x86/mm/pf_in.c
index 9f0614d..92ae64a 100644
--- a/arch/x86/mm/pf_in.c
+++ b/arch/x86/mm/pf_in.c
@@ -148,7 +148,7 @@ enum reason_type get_ins_type(unsigned long ins_addr)
 	int i;
 	enum reason_type rv = OTHERS;
 
-	p = (unsigned char *)ins_addr;
+	p = (unsigned char *)ktla_ktva(ins_addr);
 	p += skip_prefix(p, &prf);
 	p += get_opcode(p, &opcode);
 
@@ -168,7 +168,7 @@ static unsigned int get_ins_reg_width(unsigned long ins_addr)
 	struct prefix_bits prf;
 	int i;
 
-	p = (unsigned char *)ins_addr;
+	p = (unsigned char *)ktla_ktva(ins_addr);
 	p += skip_prefix(p, &prf);
 	p += get_opcode(p, &opcode);
 
@@ -191,7 +191,7 @@ unsigned int get_ins_mem_width(unsigned long ins_addr)
 	struct prefix_bits prf;
 	int i;
 
-	p = (unsigned char *)ins_addr;
+	p = (unsigned char *)ktla_ktva(ins_addr);
 	p += skip_prefix(p, &prf);
 	p += get_opcode(p, &opcode);
 
@@ -415,7 +415,7 @@ unsigned long get_ins_reg_val(unsigned long ins_addr, struct pt_regs *regs)
 	struct prefix_bits prf;
 	int i;
 
-	p = (unsigned char *)ins_addr;
+	p = (unsigned char *)ktla_ktva(ins_addr);
 	p += skip_prefix(p, &prf);
 	p += get_opcode(p, &opcode);
 	for (i = 0; i < ARRAY_SIZE(reg_rop); i++)
@@ -470,7 +470,7 @@ unsigned long get_ins_imm_val(unsigned long ins_addr)
 	struct prefix_bits prf;
 	int i;
 
-	p = (unsigned char *)ins_addr;
+	p = (unsigned char *)ktla_ktva(ins_addr);
 	p += skip_prefix(p, &prf);
 	p += get_opcode(p, &opcode);
 	for (i = 0; i < ARRAY_SIZE(imm_wop); i++)
diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index 4eb287e..a021315 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -98,10 +98,75 @@ static inline void pgd_list_del(pgd_t *pgd)
 	list_del(&page->lru);
 }
 
-#define UNSHARED_PTRS_PER_PGD				\
-	(SHARED_KERNEL_PMD ? KERNEL_PGD_BOUNDARY : PTRS_PER_PGD)
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+pgdval_t clone_pgd_mask __read_only = ~_PAGE_PRESENT;
 
+void __shadow_user_pgds(pgd_t *dst, const pgd_t *src)
+{
+	unsigned int count = USER_PGD_PTRS;
 
+	if (!pax_user_shadow_base)
+		return;
+
+	while (count--)
+		*dst++ = __pgd((pgd_val(*src++) | (_PAGE_NX & __supported_pte_mask)) & ~_PAGE_USER);
+}
+#endif
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+void __clone_user_pgds(pgd_t *dst, const pgd_t *src)
+{
+	unsigned int count = USER_PGD_PTRS;
+
+	while (count--) {
+		pgd_t pgd;
+
+#ifdef CONFIG_X86_64
+		pgd = __pgd(pgd_val(*src++) | _PAGE_USER);
+#else
+		pgd = *src++;
+#endif
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
+		pgd = __pgd(pgd_val(pgd) & clone_pgd_mask);
+#endif
+
+		*dst++ = pgd;
+	}
+
+}
+#endif
+
+#ifdef CONFIG_X86_64
+#define pxd_t				pud_t
+#define pyd_t				pgd_t
+#define paravirt_release_pxd(pfn)	paravirt_release_pud(pfn)
+#define pgtable_pxd_page_ctor(page)	true
+#define pgtable_pxd_page_dtor(page)	do {} while (0)
+#define pxd_free(mm, pud)		pud_free((mm), (pud))
+#define pyd_populate(mm, pgd, pud)	pgd_populate((mm), (pgd), (pud))
+#define pyd_offset(mm, address)		pgd_offset((mm), (address))
+#define PYD_SIZE			PGDIR_SIZE
+#define mm_inc_nr_pxds(mm)		do {} while (0)
+#define mm_dec_nr_pxds(mm)		do {} while (0)
+#else
+#define pxd_t				pmd_t
+#define pyd_t				pud_t
+#define paravirt_release_pxd(pfn)	paravirt_release_pmd(pfn)
+#define pgtable_pxd_page_ctor(page)	pgtable_pmd_page_ctor(page)
+#define pgtable_pxd_page_dtor(page)	pgtable_pmd_page_dtor(page)
+#define pxd_free(mm, pud)		pmd_free((mm), (pud))
+#define pyd_populate(mm, pgd, pud)	pud_populate((mm), (pgd), (pud))
+#define pyd_offset(mm, address)		pud_offset((mm), (address))
+#define PYD_SIZE			PUD_SIZE
+#define mm_inc_nr_pxds(mm)		mm_inc_nr_pmds(mm)
+#define mm_dec_nr_pxds(mm)		mm_dec_nr_pmds(mm)
+#endif
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+static inline void pgd_ctor(struct mm_struct *mm, pgd_t *pgd) {}
+static inline void pgd_dtor(pgd_t *pgd) {}
+#else
 static void pgd_set_mm(pgd_t *pgd, struct mm_struct *mm)
 {
 	BUILD_BUG_ON(sizeof(virt_to_page(pgd)->index) < sizeof(mm));
@@ -142,6 +207,7 @@ static void pgd_dtor(pgd_t *pgd)
 	pgd_list_del(pgd);
 	spin_unlock(&pgd_lock);
 }
+#endif
 
 /*
  * List of all pgd's needed for non-PAE so it can invalidate entries
@@ -154,7 +220,7 @@ static void pgd_dtor(pgd_t *pgd)
  * -- nyc
  */
 
-#ifdef CONFIG_X86_PAE
+#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE)
 /*
  * In PAE mode, we need to do a cr3 reload (=tlb flush) when
  * updating the top-level pagetable entries to guarantee the
@@ -166,7 +232,7 @@ static void pgd_dtor(pgd_t *pgd)
  * not shared between pagetables (!SHARED_KERNEL_PMDS), we allocate
  * and initialize the kernel pmds here.
  */
-#define PREALLOCATED_PMDS	UNSHARED_PTRS_PER_PGD
+#define PREALLOCATED_PXDS	(SHARED_KERNEL_PMD ? KERNEL_PGD_BOUNDARY : PTRS_PER_PGD)
 
 void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd)
 {
@@ -184,46 +250,48 @@ void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd)
 	 */
 	flush_tlb_mm(mm);
 }
+#elif defined(CONFIG_X86_64) && defined(CONFIG_PAX_PER_CPU_PGD)
+#define PREALLOCATED_PXDS	USER_PGD_PTRS
 #else  /* !CONFIG_X86_PAE */
 
 /* No need to prepopulate any pagetable entries in non-PAE modes. */
-#define PREALLOCATED_PMDS	0
+#define PREALLOCATED_PXDS	0
 
 #endif	/* CONFIG_X86_PAE */
 
-static void free_pmds(struct mm_struct *mm, pmd_t *pmds[])
+static void free_pxds(struct mm_struct *mm, pxd_t *pxds[])
 {
 	int i;
 
-	for(i = 0; i < PREALLOCATED_PMDS; i++)
-		if (pmds[i]) {
-			pgtable_pmd_page_dtor(virt_to_page(pmds[i]));
-			free_page((unsigned long)pmds[i]);
-			mm_dec_nr_pmds(mm);
+	for(i = 0; i < PREALLOCATED_PXDS; i++)
+		if (pxds[i]) {
+			pgtable_pxd_page_dtor(virt_to_page(pxds[i]));
+			free_page((unsigned long)pxds[i]);
+			mm_dec_nr_pxds(mm);
 		}
 }
 
-static int preallocate_pmds(struct mm_struct *mm, pmd_t *pmds[])
+static int preallocate_pxds(struct mm_struct *mm, pxd_t *pxds[])
 {
 	int i;
 	bool failed = false;
 
-	for(i = 0; i < PREALLOCATED_PMDS; i++) {
-		pmd_t *pmd = (pmd_t *)__get_free_page(PGALLOC_GFP);
-		if (!pmd)
+	for(i = 0; i < PREALLOCATED_PXDS; i++) {
+		pxd_t *pxd = (pxd_t *)__get_free_page(PGALLOC_GFP);
+		if (!pxd)
 			failed = true;
-		if (pmd && !pgtable_pmd_page_ctor(virt_to_page(pmd))) {
-			free_page((unsigned long)pmd);
-			pmd = NULL;
+		if (pxd && !pgtable_pxd_page_ctor(virt_to_page(pxd))) {
+			free_page((unsigned long)pxd);
+			pxd = NULL;
 			failed = true;
 		}
-		if (pmd)
-			mm_inc_nr_pmds(mm);
-		pmds[i] = pmd;
+		if (pxd)
+			mm_inc_nr_pxds(mm);
+		pxds[i] = pxd;
 	}
 
 	if (failed) {
-		free_pmds(mm, pmds);
+		free_pxds(mm, pxds);
 		return -ENOMEM;
 	}
 
@@ -236,43 +304,47 @@ static int preallocate_pmds(struct mm_struct *mm, pmd_t *pmds[])
  * preallocate which never got a corresponding vma will need to be
  * freed manually.
  */
-static void pgd_mop_up_pmds(struct mm_struct *mm, pgd_t *pgdp)
+static void pgd_mop_up_pxds(struct mm_struct *mm, pgd_t *pgdp)
 {
 	int i;
 
-	for(i = 0; i < PREALLOCATED_PMDS; i++) {
+	for(i = 0; i < PREALLOCATED_PXDS; i++) {
 		pgd_t pgd = pgdp[i];
 
 		if (pgd_val(pgd) != 0) {
-			pmd_t *pmd = (pmd_t *)pgd_page_vaddr(pgd);
+			pxd_t *pxd = (pxd_t *)pgd_page_vaddr(pgd);
 
-			pgdp[i] = native_make_pgd(0);
+			set_pgd(pgdp + i, native_make_pgd(0));
 
-			paravirt_release_pmd(pgd_val(pgd) >> PAGE_SHIFT);
-			pmd_free(mm, pmd);
-			mm_dec_nr_pmds(mm);
+			paravirt_release_pxd(pgd_val(pgd) >> PAGE_SHIFT);
+			pxd_free(mm, pxd);
+			mm_dec_nr_pxds(mm);
 		}
 	}
 }
 
-static void pgd_prepopulate_pmd(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmds[])
+static void pgd_prepopulate_pxd(struct mm_struct *mm, pgd_t *pgd, pxd_t *pxds[])
 {
-	pud_t *pud;
+	pyd_t *pyd;
 	int i;
 
-	if (PREALLOCATED_PMDS == 0) /* Work around gcc-3.4.x bug */
+	if (PREALLOCATED_PXDS == 0) /* Work around gcc-3.4.x bug */
 		return;
 
-	pud = pud_offset(pgd, 0);
+#ifdef CONFIG_X86_64
+	pyd = pyd_offset(mm, 0L);
+#else
+	pyd = pyd_offset(pgd, 0L);
+#endif
 
-	for (i = 0; i < PREALLOCATED_PMDS; i++, pud++) {
-		pmd_t *pmd = pmds[i];
+	for (i = 0; i < PREALLOCATED_PXDS; i++, pyd++) {
+		pxd_t *pxd = pxds[i];
 
 		if (i >= KERNEL_PGD_BOUNDARY)
-			memcpy(pmd, (pmd_t *)pgd_page_vaddr(swapper_pg_dir[i]),
-			       sizeof(pmd_t) * PTRS_PER_PMD);
+			memcpy(pxd, (pxd_t *)pgd_page_vaddr(swapper_pg_dir[i]),
+			       sizeof(pxd_t) * PTRS_PER_PMD);
 
-		pud_populate(mm, pud, pmd);
+		pyd_populate(mm, pyd, pxd);
 	}
 }
 
@@ -354,7 +426,7 @@ static inline void _pgd_free(pgd_t *pgd)
 pgd_t *pgd_alloc(struct mm_struct *mm)
 {
 	pgd_t *pgd;
-	pmd_t *pmds[PREALLOCATED_PMDS];
+	pxd_t *pxds[PREALLOCATED_PXDS];
 
 	pgd = _pgd_alloc();
 
@@ -363,11 +435,11 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
 
 	mm->pgd = pgd;
 
-	if (preallocate_pmds(mm, pmds) != 0)
+	if (preallocate_pxds(mm, pxds) != 0)
 		goto out_free_pgd;
 
 	if (paravirt_pgd_alloc(mm) != 0)
-		goto out_free_pmds;
+		goto out_free_pxds;
 
 	/*
 	 * Make sure that pre-populating the pmds is atomic with
@@ -377,14 +449,14 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
 	spin_lock(&pgd_lock);
 
 	pgd_ctor(mm, pgd);
-	pgd_prepopulate_pmd(mm, pgd, pmds);
+	pgd_prepopulate_pxd(mm, pgd, pxds);
 
 	spin_unlock(&pgd_lock);
 
 	return pgd;
 
-out_free_pmds:
-	free_pmds(mm, pmds);
+out_free_pxds:
+	free_pxds(mm, pxds);
 out_free_pgd:
 	_pgd_free(pgd);
 out:
@@ -393,7 +465,7 @@ out:
 
 void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 {
-	pgd_mop_up_pmds(mm, pgd);
+	pgd_mop_up_pxds(mm, pgd);
 	pgd_dtor(pgd);
 	paravirt_pgd_free(mm, pgd);
 	_pgd_free(pgd);
@@ -526,6 +598,50 @@ void __init reserve_top_address(unsigned long reserve)
 
 int fixmaps_set;
 
+static void fix_user_fixmap(enum fixed_addresses idx, unsigned long address)
+{
+#ifdef CONFIG_X86_64
+	pgd_t *pgd;
+	pud_t *pud;
+	pmd_t *pmd;
+
+	switch (idx) {
+	default:
+		return;
+
+#ifdef CONFIG_X86_VSYSCALL_EMULATION
+	case VSYSCALL_PAGE:
+		break;
+#endif
+	}
+
+	pgd = pgd_offset_k(address);
+	if (!(pgd_val(*pgd) & _PAGE_USER)) {
+#ifdef CONFIG_PAX_PER_CPU_PGD
+		unsigned int cpu;
+		pgd_t *pgd_cpu;
+
+		for_each_possible_cpu(cpu) {
+			pgd_cpu = pgd_offset_cpu(cpu, kernel, address);
+			set_pgd(pgd_cpu, __pgd(pgd_val(*pgd_cpu) | _PAGE_USER));
+
+			pgd_cpu = pgd_offset_cpu(cpu, user, address);
+			set_pgd(pgd_cpu, __pgd(pgd_val(*pgd_cpu) | _PAGE_USER));
+		}
+#endif
+		set_pgd(pgd, __pgd(pgd_val(*pgd) | _PAGE_USER));
+	}
+
+	pud = pud_offset(pgd, address);
+	if (!(pud_val(*pud) & _PAGE_USER))
+		set_pud(pud, __pud(pud_val(*pud) | _PAGE_USER));
+
+	pmd = pmd_offset(pud, address);
+	if (!(pmd_val(*pmd) & _PAGE_USER))
+		set_pmd(pmd, __pmd(pmd_val(*pmd) | _PAGE_USER));
+#endif
+}
+
 void __native_set_fixmap(enum fixed_addresses idx, pte_t pte)
 {
 	unsigned long address = __fix_to_virt(idx);
@@ -536,9 +652,10 @@ void __native_set_fixmap(enum fixed_addresses idx, pte_t pte)
 	}
 	set_pte_vaddr(address, pte);
 	fixmaps_set++;
+	fix_user_fixmap(idx, address);
 }
 
-void native_set_fixmap(enum fixed_addresses idx, phys_addr_t phys,
+void native_set_fixmap(unsigned int idx, phys_addr_t phys,
 		       pgprot_t flags)
 {
 	__native_set_fixmap(idx, pfn_pte(phys >> PAGE_SHIFT, flags));
@@ -602,9 +719,11 @@ int pmd_set_huge(pmd_t *pmd, phys_addr_t addr, pgprot_t prot)
 
 	prot = pgprot_4k_2_large(prot);
 
+	pax_open_kernel();
 	set_pte((pte_t *)pmd, pfn_pte(
 		(u64)addr >> PAGE_SHIFT,
 		__pgprot(pgprot_val(prot) | _PAGE_PSE)));
+	pax_close_kernel();
 
 	return 1;
 }
diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c
index 75cc097..79a097f 100644
--- a/arch/x86/mm/pgtable_32.c
+++ b/arch/x86/mm/pgtable_32.c
@@ -47,10 +47,13 @@ void set_pte_vaddr(unsigned long vaddr, pte_t pteval)
 		return;
 	}
 	pte = pte_offset_kernel(pmd, vaddr);
+
+	pax_open_kernel();
 	if (pte_val(pteval))
 		set_pte_at(&init_mm, vaddr, pte, pteval);
 	else
 		pte_clear(&init_mm, vaddr, pte);
+	pax_close_kernel();
 
 	/*
 	 * It's enough to flush this one mapping.
diff --git a/arch/x86/mm/setup_nx.c b/arch/x86/mm/setup_nx.c
index f65a33f..f408a99 100644
--- a/arch/x86/mm/setup_nx.c
+++ b/arch/x86/mm/setup_nx.c
@@ -6,8 +6,10 @@
 #include <asm/proto.h>
 #include <asm/cpufeature.h>
 
+#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
 static int disable_nx;
 
+#ifndef CONFIG_PAX_PAGEEXEC
 /*
  * noexec = on|off
  *
@@ -29,12 +31,17 @@ static int __init noexec_setup(char *str)
 	return 0;
 }
 early_param("noexec", noexec_setup);
+#endif
+
+#endif
 
 void x86_configure_nx(void)
 {
+#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
 	if (boot_cpu_has(X86_FEATURE_NX) && !disable_nx)
 		__supported_pte_mask |= _PAGE_NX;
 	else
+#endif
 		__supported_pte_mask &= ~_PAGE_NX;
 }
 
diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
index fe9b9f7..35b4936e 100644
--- a/arch/x86/mm/tlb.c
+++ b/arch/x86/mm/tlb.c
@@ -45,7 +45,11 @@ void leave_mm(int cpu)
 		BUG();
 	if (cpumask_test_cpu(cpu, mm_cpumask(active_mm))) {
 		cpumask_clear_cpu(cpu, mm_cpumask(active_mm));
+
+#ifndef CONFIG_PAX_PER_CPU_PGD
 		load_cr3(swapper_pg_dir);
+#endif
+
 		/*
 		 * This gets called in the idle path where RCU
 		 * functions differently.  Tracing normally
diff --git a/arch/x86/mm/uderef_64.c b/arch/x86/mm/uderef_64.c
new file mode 100644
index 0000000..3fda3f3
--- /dev/null
+++ b/arch/x86/mm/uderef_64.c
@@ -0,0 +1,37 @@
+#include <linux/mm.h>
+#include <asm/pgtable.h>
+#include <asm/uaccess.h>
+
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+/* PaX: due to the special call convention these functions must
+ * - remain leaf functions under all configurations,
+ * - never be called directly, only dereferenced from the wrappers.
+ */
+void __used __pax_open_userland(void)
+{
+	unsigned int cpu;
+
+	if (unlikely(!segment_eq(get_fs(), USER_DS)))
+		return;
+
+	cpu = raw_get_cpu();
+	BUG_ON((read_cr3() & ~PAGE_MASK) != PCID_KERNEL);
+	write_cr3(__pa_nodebug(get_cpu_pgd(cpu, user)) | PCID_USER | PCID_NOFLUSH);
+	raw_put_cpu_no_resched();
+}
+EXPORT_SYMBOL(__pax_open_userland);
+
+void __used __pax_close_userland(void)
+{
+	unsigned int cpu;
+
+	if (unlikely(!segment_eq(get_fs(), USER_DS)))
+		return;
+
+	cpu = raw_get_cpu();
+	BUG_ON((read_cr3() & ~PAGE_MASK) != PCID_USER);
+	write_cr3(__pa_nodebug(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL | PCID_NOFLUSH);
+	raw_put_cpu_no_resched();
+}
+EXPORT_SYMBOL(__pax_close_userland);
+#endif
diff --git a/arch/x86/net/bpf_jit.S b/arch/x86/net/bpf_jit.S
index f2a7faf..b77bb6c 100644
--- a/arch/x86/net/bpf_jit.S
+++ b/arch/x86/net/bpf_jit.S
@@ -9,6 +9,7 @@
  */
 #include <linux/linkage.h>
 #include <asm/frame.h>
+#include <asm/alternative-asm.h>
 
 /*
  * Calling convention :
@@ -39,6 +40,7 @@ FUNC(sk_load_word_positive_offset)
 	jle	bpf_slow_path_word
 	mov     (SKBDATA,%rsi),%eax
 	bswap   %eax  			/* ntohl() */
+	pax_force_retaddr
 	ret
 
 FUNC(sk_load_half)
@@ -52,6 +54,7 @@ FUNC(sk_load_half_positive_offset)
 	jle	bpf_slow_path_half
 	movzwl	(SKBDATA,%rsi),%eax
 	rol	$8,%ax			# ntohs()
+	pax_force_retaddr
 	ret
 
 FUNC(sk_load_byte)
@@ -62,6 +65,7 @@ FUNC(sk_load_byte_positive_offset)
 	cmp	%esi,%r9d   /* if (offset >= hlen) goto bpf_slow_path_byte */
 	jle	bpf_slow_path_byte
 	movzbl	(SKBDATA,%rsi),%eax
+	pax_force_retaddr
 	ret
 
 /* rsi contains offset and can be scratched */
@@ -85,6 +89,7 @@ bpf_slow_path_word:
 	js	bpf_error
 	mov	- MAX_BPF_STACK + 32(%rbp),%eax
 	bswap	%eax
+	pax_force_retaddr
 	ret
 
 bpf_slow_path_half:
@@ -93,12 +98,14 @@ bpf_slow_path_half:
 	mov	- MAX_BPF_STACK + 32(%rbp),%ax
 	rol	$8,%ax
 	movzwl	%ax,%eax
+	pax_force_retaddr
 	ret
 
 bpf_slow_path_byte:
 	bpf_slow_path_common(1)
 	js	bpf_error
 	movzbl	- MAX_BPF_STACK + 32(%rbp),%eax
+	pax_force_retaddr
 	ret
 
 #define sk_negative_common(SIZE)				\
@@ -123,6 +130,7 @@ FUNC(sk_load_word_negative_offset)
 	sk_negative_common(4)
 	mov	(%rax), %eax
 	bswap	%eax
+	pax_force_retaddr
 	ret
 
 bpf_slow_path_half_neg:
@@ -134,6 +142,7 @@ FUNC(sk_load_half_negative_offset)
 	mov	(%rax),%ax
 	rol	$8,%ax
 	movzwl	%ax,%eax
+	pax_force_retaddr
 	ret
 
 bpf_slow_path_byte_neg:
@@ -143,6 +152,7 @@ bpf_slow_path_byte_neg:
 FUNC(sk_load_byte_negative_offset)
 	sk_negative_common(1)
 	movzbl	(%rax), %eax
+	pax_force_retaddr
 	ret
 
 bpf_error:
@@ -153,4 +163,5 @@ bpf_error:
 	mov	- MAX_BPF_STACK + 16(%rbp),%r14
 	mov	- MAX_BPF_STACK + 24(%rbp),%r15
 	leaveq
+	pax_force_retaddr
 	ret
diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
index 4286f36..54471fd 100644
--- a/arch/x86/net/bpf_jit_comp.c
+++ b/arch/x86/net/bpf_jit_comp.c
@@ -14,7 +14,11 @@
 #include <asm/cacheflush.h>
 #include <linux/bpf.h>
 
+#ifdef CONFIG_GRKERNSEC_BPF_HARDEN
+int bpf_jit_enable __read_only;
+#else
 int bpf_jit_enable __read_mostly;
+#endif
 
 /*
  * assembly code in arch/x86/net/bpf_jit.S
@@ -176,7 +180,9 @@ static u8 add_2reg(u8 byte, u32 dst_reg, u32 src_reg)
 static void jit_fill_hole(void *area, unsigned int size)
 {
 	/* fill whole space with int3 instructions */
+	pax_open_kernel();
 	memset(area, 0xcc, size);
+	pax_close_kernel();
 }
 
 struct jit_context {
@@ -1060,7 +1066,9 @@ common_load:
 				pr_err("bpf_jit_compile fatal error\n");
 				return -EFAULT;
 			}
+			pax_open_kernel();
 			memcpy(image + proglen, temp, ilen);
+			pax_close_kernel();
 		}
 		proglen += ilen;
 		addrs[i] = proglen;
@@ -1137,7 +1145,6 @@ void bpf_int_jit_compile(struct bpf_prog *prog)
 
 	if (image) {
 		bpf_flush_icache(header, image + proglen);
-		set_memory_ro((unsigned long)header, header->pages);
 		prog->bpf_func = (void *)image;
 		prog->jited = 1;
 	}
@@ -1150,12 +1157,8 @@ void bpf_jit_free(struct bpf_prog *fp)
 	unsigned long addr = (unsigned long)fp->bpf_func & PAGE_MASK;
 	struct bpf_binary_header *header = (void *)addr;
 
-	if (!fp->jited)
-		goto free_filter;
+	if (fp->jited)
+		bpf_jit_binary_free(header);
 
-	set_memory_rw(addr, header->pages);
-	bpf_jit_binary_free(header);
-
-free_filter:
 	bpf_prog_unlock_free(fp);
 }
diff --git a/arch/x86/oprofile/backtrace.c b/arch/x86/oprofile/backtrace.c
index cb31a44..b942435 100644
--- a/arch/x86/oprofile/backtrace.c
+++ b/arch/x86/oprofile/backtrace.c
@@ -47,11 +47,11 @@ dump_user_backtrace_32(struct stack_frame_ia32 *head)
 	struct stack_frame_ia32 *fp;
 	unsigned long bytes;
 
-	bytes = copy_from_user_nmi(bufhead, head, sizeof(bufhead));
+	bytes = copy_from_user_nmi(bufhead, (const char __force_user *)head, sizeof(bufhead));
 	if (bytes != 0)
 		return NULL;
 
-	fp = (struct stack_frame_ia32 *) compat_ptr(bufhead[0].next_frame);
+	fp = (struct stack_frame_ia32 __force_kernel *) compat_ptr(bufhead[0].next_frame);
 
 	oprofile_add_trace(bufhead[0].return_address);
 
@@ -93,7 +93,7 @@ static struct stack_frame *dump_user_backtrace(struct stack_frame *head)
 	struct stack_frame bufhead[2];
 	unsigned long bytes;
 
-	bytes = copy_from_user_nmi(bufhead, head, sizeof(bufhead));
+	bytes = copy_from_user_nmi(bufhead, (const char __force_user *)head, sizeof(bufhead));
 	if (bytes != 0)
 		return NULL;
 
diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
index 0e07e09..334d300 100644
--- a/arch/x86/oprofile/nmi_int.c
+++ b/arch/x86/oprofile/nmi_int.c
@@ -23,6 +23,7 @@
 #include <asm/nmi.h>
 #include <asm/msr.h>
 #include <asm/apic.h>
+#include <asm/pgtable.h>
 
 #include "op_counter.h"
 #include "op_x86_model.h"
@@ -615,7 +616,7 @@ enum __force_cpu_type {
 
 static int force_cpu_type;
 
-static int set_cpu_type(const char *str, struct kernel_param *kp)
+static int set_cpu_type(const char *str, const struct kernel_param *kp)
 {
 	if (!strcmp(str, "timer")) {
 		force_cpu_type = timer;
@@ -786,8 +787,11 @@ int __init op_nmi_init(struct oprofile_operations *ops)
 	if (ret)
 		return ret;
 
-	if (!model->num_virt_counters)
-		model->num_virt_counters = model->num_counters;
+	if (!model->num_virt_counters) {
+		pax_open_kernel();
+		const_cast(model->num_virt_counters) = model->num_counters;
+		pax_close_kernel();
+	}
 
 	mux_init(ops);
 
diff --git a/arch/x86/oprofile/op_model_amd.c b/arch/x86/oprofile/op_model_amd.c
index 660a83c..6ff762b 100644
--- a/arch/x86/oprofile/op_model_amd.c
+++ b/arch/x86/oprofile/op_model_amd.c
@@ -518,9 +518,11 @@ static int op_amd_init(struct oprofile_operations *ops)
 		num_counters = AMD64_NUM_COUNTERS;
 	}
 
-	op_amd_spec.num_counters = num_counters;
-	op_amd_spec.num_controls = num_counters;
-	op_amd_spec.num_virt_counters = max(num_counters, NUM_VIRT_COUNTERS);
+	pax_open_kernel();
+	const_cast(op_amd_spec.num_counters) = num_counters;
+	const_cast(op_amd_spec.num_controls) = num_counters;
+	const_cast(op_amd_spec.num_virt_counters) = max(num_counters, NUM_VIRT_COUNTERS);
+	pax_close_kernel();
 
 	return 0;
 }
diff --git a/arch/x86/oprofile/op_model_ppro.c b/arch/x86/oprofile/op_model_ppro.c
index d90528e..a44aa09 100644
--- a/arch/x86/oprofile/op_model_ppro.c
+++ b/arch/x86/oprofile/op_model_ppro.c
@@ -19,6 +19,7 @@
 #include <asm/msr.h>
 #include <asm/apic.h>
 #include <asm/nmi.h>
+#include <asm/pgtable.h>
 
 #include "op_x86_model.h"
 #include "op_counter.h"
@@ -221,8 +222,10 @@ static void arch_perfmon_setup_counters(void)
 
 	num_counters = min((int)eax.split.num_counters, OP_MAX_COUNTER);
 
-	op_arch_perfmon_spec.num_counters = num_counters;
-	op_arch_perfmon_spec.num_controls = num_counters;
+	pax_open_kernel();
+	const_cast(op_arch_perfmon_spec.num_counters) = num_counters;
+	const_cast(op_arch_perfmon_spec.num_controls) = num_counters;
+	pax_close_kernel();
 }
 
 static int arch_perfmon_init(struct oprofile_operations *ignore)
diff --git a/arch/x86/oprofile/op_x86_model.h b/arch/x86/oprofile/op_x86_model.h
index 71e8a67..6a313bb 100644
--- a/arch/x86/oprofile/op_x86_model.h
+++ b/arch/x86/oprofile/op_x86_model.h
@@ -52,7 +52,7 @@ struct op_x86_model_spec {
 	void		(*switch_ctrl)(struct op_x86_model_spec const *model,
 				       struct op_msrs const * const msrs);
 #endif
-};
+} __do_const;
 
 struct op_counter_config;
 
diff --git a/arch/x86/pci/intel_mid_pci.c b/arch/x86/pci/intel_mid_pci.c
index 8b93e63..9cf21c3 100644
--- a/arch/x86/pci/intel_mid_pci.c
+++ b/arch/x86/pci/intel_mid_pci.c
@@ -280,7 +280,7 @@ int __init intel_mid_pci_init(void)
 	pci_mmcfg_late_init();
 	pcibios_enable_irq = intel_mid_pci_irq_enable;
 	pcibios_disable_irq = intel_mid_pci_irq_disable;
-	pci_root_ops = intel_mid_pci_ops;
+	memcpy((void *)&pci_root_ops, &intel_mid_pci_ops, sizeof pci_root_ops);
 	pci_soc_mode = 1;
 	/* Continue with standard init */
 	return 1;
diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index 9bd1154..e9d4656 100644
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -51,7 +51,7 @@ struct irq_router {
 struct irq_router_handler {
 	u16 vendor;
 	int (*probe)(struct irq_router *r, struct pci_dev *router, u16 device);
-};
+} __do_const;
 
 int (*pcibios_enable_irq)(struct pci_dev *dev) = pirq_enable_irq;
 void (*pcibios_disable_irq)(struct pci_dev *dev) = pirq_disable_irq;
@@ -792,7 +792,7 @@ static __init int pico_router_probe(struct irq_router *r, struct pci_dev *router
 	return 0;
 }
 
-static __initdata struct irq_router_handler pirq_routers[] = {
+static __initconst const struct irq_router_handler pirq_routers[] = {
 	{ PCI_VENDOR_ID_INTEL, intel_router_probe },
 	{ PCI_VENDOR_ID_AL, ali_router_probe },
 	{ PCI_VENDOR_ID_ITE, ite_router_probe },
@@ -819,7 +819,7 @@ static struct pci_dev *pirq_router_dev;
 static void __init pirq_find_router(struct irq_router *r)
 {
 	struct irq_routing_table *rt = pirq_table;
-	struct irq_router_handler *h;
+	const struct irq_router_handler *h;
 
 #ifdef CONFIG_PCI_BIOS
 	if (!rt->signature) {
@@ -1092,7 +1092,7 @@ static int __init fix_acer_tm360_irqrouting(const struct dmi_system_id *d)
 	return 0;
 }
 
-static struct dmi_system_id __initdata pciirq_dmi_table[] = {
+static const struct dmi_system_id __initconst pciirq_dmi_table[] = {
 	{
 		.callback = fix_broken_hp_bios_irq9,
 		.ident = "HP Pavilion N5400 Series Laptop",
diff --git a/arch/x86/pci/pcbios.c b/arch/x86/pci/pcbios.c
index 9770e55..76067ec 100644
--- a/arch/x86/pci/pcbios.c
+++ b/arch/x86/pci/pcbios.c
@@ -79,7 +79,7 @@ union bios32 {
 static struct {
 	unsigned long address;
 	unsigned short segment;
-} bios32_indirect __initdata = { 0, __KERNEL_CS };
+} bios32_indirect __initdata = { 0, __PCIBIOS_CS };
 
 /*
  * Returns the entry point for the given service, NULL on error
@@ -92,37 +92,80 @@ static unsigned long __init bios32_service(unsigned long service)
 	unsigned long length;		/* %ecx */
 	unsigned long entry;		/* %edx */
 	unsigned long flags;
+	struct desc_struct d, *gdt;
 
 	local_irq_save(flags);
-	__asm__("lcall *(%%edi); cld"
+
+	gdt = get_cpu_gdt_table(smp_processor_id());
+
+	pack_descriptor(&d, 0UL, 0xFFFFFUL, 0x9B, 0xC);
+	write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_CS, &d, DESCTYPE_S);
+	pack_descriptor(&d, 0UL, 0xFFFFFUL, 0x93, 0xC);
+	write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_DS, &d, DESCTYPE_S);
+
+	__asm__("movw %w7, %%ds; lcall *(%%edi); push %%ss; pop %%ds; cld"
 		: "=a" (return_code),
 		  "=b" (address),
 		  "=c" (length),
 		  "=d" (entry)
 		: "0" (service),
 		  "1" (0),
-		  "D" (&bios32_indirect));
+		  "D" (&bios32_indirect),
+		  "r"(__PCIBIOS_DS)
+		: "memory");
+
+	pax_open_kernel();
+	gdt[GDT_ENTRY_PCIBIOS_CS].a = 0;
+	gdt[GDT_ENTRY_PCIBIOS_CS].b = 0;
+	gdt[GDT_ENTRY_PCIBIOS_DS].a = 0;
+	gdt[GDT_ENTRY_PCIBIOS_DS].b = 0;
+	pax_close_kernel();
+
 	local_irq_restore(flags);
 
 	switch (return_code) {
-		case 0:
-			return address + entry;
-		case 0x80:	/* Not present */
-			printk(KERN_WARNING "bios32_service(0x%lx): not present\n", service);
-			return 0;
-		default: /* Shouldn't happen */
-			printk(KERN_WARNING "bios32_service(0x%lx): returned 0x%x -- BIOS bug!\n",
-				service, return_code);
+	case 0: {
+		int cpu;
+		unsigned char flags;
+
+		printk(KERN_INFO "bios32_service: base:%08lx length:%08lx entry:%08lx\n", address, length, entry);
+		if (address >= 0xFFFF0 || length > 0x100000 - address || length <= entry) {
+			printk(KERN_WARNING "bios32_service: not valid\n");
 			return 0;
+		}
+		address = address + PAGE_OFFSET;
+		length += 16UL; /* some BIOSs underreport this... */
+		flags = 4;
+		if (length >= 64*1024*1024) {
+			length >>= PAGE_SHIFT;
+			flags |= 8;
+		}
+
+		for (cpu = 0; cpu < nr_cpu_ids; cpu++) {
+			gdt = get_cpu_gdt_table(cpu);
+			pack_descriptor(&d, address, length, 0x9b, flags);
+			write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_CS, &d, DESCTYPE_S);
+			pack_descriptor(&d, address, length, 0x93, flags);
+			write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_DS, &d, DESCTYPE_S);
+		}
+		return entry;
+	}
+	case 0x80:	/* Not present */
+		printk(KERN_WARNING "bios32_service(0x%lx): not present\n", service);
+		return 0;
+	default: /* Shouldn't happen */
+		printk(KERN_WARNING "bios32_service(0x%lx): returned 0x%x -- BIOS bug!\n",
+			service, return_code);
+		return 0;
 	}
 }
 
 static struct {
 	unsigned long address;
 	unsigned short segment;
-} pci_indirect = { 0, __KERNEL_CS };
+} pci_indirect __read_only = { 0, __PCIBIOS_CS };
 
-static int pci_bios_present;
+static int pci_bios_present __read_only;
 
 static int __init check_pcibios(void)
 {
@@ -131,11 +174,13 @@ static int __init check_pcibios(void)
 	unsigned long flags, pcibios_entry;
 
 	if ((pcibios_entry = bios32_service(PCI_SERVICE))) {
-		pci_indirect.address = pcibios_entry + PAGE_OFFSET;
+		pci_indirect.address = pcibios_entry;
 
 		local_irq_save(flags);
-		__asm__(
-			"lcall *(%%edi); cld\n\t"
+		__asm__("movw %w6, %%ds\n\t"
+			"lcall *%%ss:(%%edi); cld\n\t"
+			"push %%ss\n\t"
+			"pop %%ds\n\t"
 			"jc 1f\n\t"
 			"xor %%ah, %%ah\n"
 			"1:"
@@ -144,7 +189,8 @@ static int __init check_pcibios(void)
 			  "=b" (ebx),
 			  "=c" (ecx)
 			: "1" (PCIBIOS_PCI_BIOS_PRESENT),
-			  "D" (&pci_indirect)
+			  "D" (&pci_indirect),
+			  "r" (__PCIBIOS_DS)
 			: "memory");
 		local_irq_restore(flags);
 
@@ -202,7 +248,10 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
 		break;
 	}
 
-	__asm__("lcall *(%%esi); cld\n\t"
+	__asm__("movw %w6, %%ds\n\t"
+		"lcall *%%ss:(%%esi); cld\n\t"
+		"push %%ss\n\t"
+		"pop %%ds\n\t"
 		"jc 1f\n\t"
 		"xor %%ah, %%ah\n"
 		"1:"
@@ -211,7 +260,8 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
 		: "1" (number),
 		  "b" (bx),
 		  "D" ((long)reg),
-		  "S" (&pci_indirect));
+		  "S" (&pci_indirect),
+		  "r" (__PCIBIOS_DS));
 	/*
 	 * Zero-extend the result beyond 8 or 16 bits, do not trust the
 	 * BIOS having done it:
@@ -250,7 +300,10 @@ static int pci_bios_write(unsigned int seg, unsigned int bus,
 		break;
 	}
 
-	__asm__("lcall *(%%esi); cld\n\t"
+	__asm__("movw %w6, %%ds\n\t"
+		"lcall *%%ss:(%%esi); cld\n\t"
+		"push %%ss\n\t"
+		"pop %%ds\n\t"
 		"jc 1f\n\t"
 		"xor %%ah, %%ah\n"
 		"1:"
@@ -259,7 +312,8 @@ static int pci_bios_write(unsigned int seg, unsigned int bus,
 		  "c" (value),
 		  "b" (bx),
 		  "D" ((long)reg),
-		  "S" (&pci_indirect));
+		  "S" (&pci_indirect),
+		  "r" (__PCIBIOS_DS));
 
 	raw_spin_unlock_irqrestore(&pci_config_lock, flags);
 
@@ -362,10 +416,13 @@ struct irq_routing_table * pcibios_get_irq_routing_table(void)
 
 	DBG("PCI: Fetching IRQ routing table... ");
 	__asm__("push %%es\n\t"
+		"movw %w8, %%ds\n\t"
 		"push %%ds\n\t"
 		"pop  %%es\n\t"
-		"lcall *(%%esi); cld\n\t"
+		"lcall *%%ss:(%%esi); cld\n\t"
 		"pop %%es\n\t"
+		"push %%ss\n\t"
+		"pop %%ds\n"
 		"jc 1f\n\t"
 		"xor %%ah, %%ah\n"
 		"1:"
@@ -376,7 +433,8 @@ struct irq_routing_table * pcibios_get_irq_routing_table(void)
 		  "1" (0),
 		  "D" ((long) &opt),
 		  "S" (&pci_indirect),
-		  "m" (opt)
+		  "m" (opt),
+		  "r" (__PCIBIOS_DS)
 		: "memory");
 	DBG("OK  ret=%d, size=%d, map=%x\n", ret, opt.size, map);
 	if (ret & 0xff00)
@@ -400,7 +458,10 @@ int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq)
 {
 	int ret;
 
-	__asm__("lcall *(%%esi); cld\n\t"
+	__asm__("movw %w5, %%ds\n\t"
+		"lcall *%%ss:(%%esi); cld\n\t"
+		"push %%ss\n\t"
+		"pop %%ds\n"
 		"jc 1f\n\t"
 		"xor %%ah, %%ah\n"
 		"1:"
@@ -408,7 +469,8 @@ int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq)
 		: "0" (PCIBIOS_SET_PCI_HW_INT),
 		  "b" ((dev->bus->number << 8) | dev->devfn),
 		  "c" ((irq << 8) | (pin + 10)),
-		  "S" (&pci_indirect));
+		  "S" (&pci_indirect),
+		  "r" (__PCIBIOS_DS));
 	return !(ret & 0xff00);
 }
 EXPORT_SYMBOL(pcibios_set_irq_routing);
diff --git a/arch/x86/pci/vmd.c b/arch/x86/pci/vmd.c
index 7792aba..38faabf 100644
--- a/arch/x86/pci/vmd.c
+++ b/arch/x86/pci/vmd.c
@@ -374,7 +374,7 @@ static void vmd_teardown_dma_ops(struct vmd_dev *vmd)
 #define ASSIGN_VMD_DMA_OPS(source, dest, fn)	\
 	do {					\
 		if (source->fn)			\
-			dest->fn = vmd_##fn;	\
+			const_cast(dest->fn) = vmd_##fn;	\
 	} while (0)
 
 static void vmd_setup_dma_ops(struct vmd_dev *vmd)
@@ -388,6 +388,7 @@ static void vmd_setup_dma_ops(struct vmd_dev *vmd)
 
 	if (!source)
 		return;
+	pax_open_kernel();
 	ASSIGN_VMD_DMA_OPS(source, dest, alloc);
 	ASSIGN_VMD_DMA_OPS(source, dest, free);
 	ASSIGN_VMD_DMA_OPS(source, dest, mmap);
@@ -405,6 +406,7 @@ static void vmd_setup_dma_ops(struct vmd_dev *vmd)
 #ifdef ARCH_HAS_DMA_GET_REQUIRED_MASK
 	ASSIGN_VMD_DMA_OPS(source, dest, get_required_mask);
 #endif
+	pax_close_kernel();
 	add_dma_domain(domain);
 }
 #undef ASSIGN_VMD_DMA_OPS
diff --git a/arch/x86/platform/efi/efi_32.c b/arch/x86/platform/efi/efi_32.c
index 338402b9..29ea50ab 100644
--- a/arch/x86/platform/efi/efi_32.c
+++ b/arch/x86/platform/efi/efi_32.c
@@ -66,11 +66,27 @@ pgd_t * __init efi_call_phys_prolog(void)
 	struct desc_ptr gdt_descr;
 	pgd_t *save_pgd;
 
+#ifdef CONFIG_PAX_KERNEXEC
+	struct desc_struct d;
+#endif
+
 	/* Current pgd is swapper_pg_dir, we'll restore it later: */
+#ifdef CONFIG_PAX_PER_CPU_PGD
+	save_pgd = get_cpu_pgd(smp_processor_id(), kernel);
+#else
 	save_pgd = swapper_pg_dir;
+#endif
+
 	load_cr3(initial_page_table);
 	__flush_tlb_all();
 
+#ifdef CONFIG_PAX_KERNEXEC
+	pack_descriptor(&d, 0, 0xFFFFF, 0x9B, 0xC);
+	write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_CS, &d, DESCTYPE_S);
+	pack_descriptor(&d, 0, 0xFFFFF, 0x93, 0xC);
+	write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_DS, &d, DESCTYPE_S);
+#endif
+
 	gdt_descr.address = __pa(get_cpu_gdt_table(0));
 	gdt_descr.size = GDT_SIZE - 1;
 	load_gdt(&gdt_descr);
@@ -82,6 +98,14 @@ void __init efi_call_phys_epilog(pgd_t *save_pgd)
 {
 	struct desc_ptr gdt_descr;
 
+#ifdef CONFIG_PAX_KERNEXEC
+	struct desc_struct d;
+
+	memset(&d, 0, sizeof d);
+	write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_CS, &d, DESCTYPE_S);
+	write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_DS, &d, DESCTYPE_S);
+#endif
+
 	gdt_descr.address = (unsigned long)get_cpu_gdt_table(0);
 	gdt_descr.size = GDT_SIZE - 1;
 	load_gdt(&gdt_descr);
diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c
index 49e4dd4..d714abf 100644
--- a/arch/x86/platform/efi/efi_64.c
+++ b/arch/x86/platform/efi/efi_64.c
@@ -93,6 +93,11 @@ pgd_t * __init efi_call_phys_prolog(void)
 		vaddress = (unsigned long)__va(pgd * PGDIR_SIZE);
 		set_pgd(pgd_offset_k(pgd * PGDIR_SIZE), *pgd_offset_k(vaddress));
 	}
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+	load_cr3(swapper_pg_dir);
+#endif
+
 out:
 	__flush_tlb_all();
 
@@ -120,6 +125,10 @@ void __init efi_call_phys_epilog(pgd_t *save_pgd)
 
 	kfree(save_pgd);
 
+#ifdef CONFIG_PAX_PER_CPU_PGD
+	load_cr3(get_cpu_pgd(smp_processor_id(), kernel));
+#endif
+
 	__flush_tlb_all();
 	early_code_mapping_set_exec(0);
 }
@@ -220,8 +229,23 @@ int __init efi_setup_page_tables(unsigned long pa_memmap, unsigned num_pages)
 	unsigned npages;
 	pgd_t *pgd;
 
-	if (efi_enabled(EFI_OLD_MEMMAP))
+	if (efi_enabled(EFI_OLD_MEMMAP)) {
+		/* PaX: We need to disable the NX bit in the PGD, otherwise we won't be
+		 * able to execute the EFI services.
+		 */
+		if (__supported_pte_mask & _PAGE_NX) {
+			unsigned long addr = (unsigned long) __va(0);
+			pgd_t pe = __pgd(pgd_val(*pgd_offset_k(addr)) &  ~_PAGE_NX);
+
+			pr_alert("PAX: Disabling NX protection for low memory map. Try booting without \"efi=old_map\"\n");
+#ifdef CONFIG_PAX_PER_CPU_PGD
+			set_pgd(pgd_offset_cpu(0, kernel, addr), pe);
+#endif
+			set_pgd(pgd_offset_k(addr), pe);
+		}
+
 		return 0;
+	}
 
 	efi_scratch.efi_pgt = (pgd_t *)__pa(efi_pgd);
 	pgd = efi_pgd;
diff --git a/arch/x86/platform/efi/efi_stub_32.S b/arch/x86/platform/efi/efi_stub_32.S
index 040192b..7d3300f 100644
--- a/arch/x86/platform/efi/efi_stub_32.S
+++ b/arch/x86/platform/efi/efi_stub_32.S
@@ -6,7 +6,9 @@
  */
 
 #include <linux/linkage.h>
+#include <linux/init.h>
 #include <asm/page_types.h>
+#include <asm/segment.h>
 
 /*
  * efi_call_phys(void *, ...) is a function with variable parameters.
@@ -20,7 +22,7 @@
  * service functions will comply with gcc calling convention, too.
  */
 
-.text
+__INIT
 ENTRY(efi_call_phys)
 	/*
 	 * 0. The function can only be called in Linux kernel. So CS has been
@@ -36,10 +38,24 @@ ENTRY(efi_call_phys)
 	 * The mapping of lower virtual memory has been created in prolog and
 	 * epilog.
 	 */
-	movl	$1f, %edx
-	subl	$__PAGE_OFFSET, %edx
-	jmp	*%edx
+#ifdef CONFIG_PAX_KERNEXEC
+	movl	$(__KERNEXEC_EFI_DS), %edx
+	mov	%edx, %ds
+	mov	%edx, %es
+	mov	%edx, %ss
+	addl	$2f,(1f)
+	ljmp	*(1f)
+
+__INITDATA
+1:	.long __LOAD_PHYSICAL_ADDR, __KERNEXEC_EFI_CS
+.previous
+
+2:
+	subl	$2b,(1b)
+#else
+	jmp	1f-__PAGE_OFFSET
 1:
+#endif
 
 	/*
 	 * 2. Now on the top of stack is the return
@@ -47,14 +63,8 @@ ENTRY(efi_call_phys)
 	 * parameter 2, ..., param n. To make things easy, we save the return
 	 * address of efi_call_phys in a global variable.
 	 */
-	popl	%edx
-	movl	%edx, saved_return_addr
-	/* get the function pointer into ECX*/
-	popl	%ecx
-	movl	%ecx, efi_rt_function_ptr
-	movl	$2f, %edx
-	subl	$__PAGE_OFFSET, %edx
-	pushl	%edx
+	popl	(saved_return_addr)
+	popl	(efi_rt_function_ptr)
 
 	/*
 	 * 3. Clear PG bit in %CR0.
@@ -73,9 +83,8 @@ ENTRY(efi_call_phys)
 	/*
 	 * 5. Call the physical function.
 	 */
-	jmp	*%ecx
+	call	*(efi_rt_function_ptr-__PAGE_OFFSET)
 
-2:
 	/*
 	 * 6. After EFI runtime service returns, control will return to
 	 * following instruction. We'd better readjust stack pointer first.
@@ -88,35 +97,36 @@ ENTRY(efi_call_phys)
 	movl	%cr0, %edx
 	orl	$0x80000000, %edx
 	movl	%edx, %cr0
-	jmp	1f
-1:
+
 	/*
 	 * 8. Now restore the virtual mode from flat mode by
 	 * adding EIP with PAGE_OFFSET.
 	 */
-	movl	$1f, %edx
-	jmp	*%edx
+#ifdef CONFIG_PAX_KERNEXEC
+	movl	$(__KERNEL_DS), %edx
+	mov	%edx, %ds
+	mov	%edx, %es
+	mov	%edx, %ss
+	ljmp	$(__KERNEL_CS),$1f
+#else
+	jmp	1f+__PAGE_OFFSET
+#endif
 1:
 
 	/*
 	 * 9. Balance the stack. And because EAX contain the return value,
 	 * we'd better not clobber it.
 	 */
-	leal	efi_rt_function_ptr, %edx
-	movl	(%edx), %ecx
-	pushl	%ecx
+	pushl	(efi_rt_function_ptr)
 
 	/*
-	 * 10. Push the saved return address onto the stack and return.
+	 * 10. Return to the saved return address.
 	 */
-	leal	saved_return_addr, %edx
-	movl	(%edx), %ecx
-	pushl	%ecx
-	ret
+	jmpl	*(saved_return_addr)
 ENDPROC(efi_call_phys)
 .previous
 
-.data
+__INITDATA
 saved_return_addr:
 	.long 0
 efi_rt_function_ptr:
diff --git a/arch/x86/platform/efi/efi_stub_64.S b/arch/x86/platform/efi/efi_stub_64.S
index 92723ae..c9adfb7 100644
--- a/arch/x86/platform/efi/efi_stub_64.S
+++ b/arch/x86/platform/efi/efi_stub_64.S
@@ -12,6 +12,7 @@
 #include <asm/processor-flags.h>
 #include <asm/page_types.h>
 #include <asm/frame.h>
+#include <asm/alternative-asm.h>
 
 #define SAVE_XMM			\
 	mov %rsp, %rax;			\
@@ -54,5 +55,6 @@ ENTRY(efi_call)
 	addq $48, %rsp
 	RESTORE_XMM
 	FRAME_END
+	pax_force_retaddr 0, 1
 	ret
 ENDPROC(efi_call)
diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
index 90bb997..3cca066 100644
--- a/arch/x86/platform/intel-mid/intel-mid.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -63,7 +63,7 @@ enum intel_mid_timer_options intel_mid_timer_options;
 /* intel_mid_ops to store sub arch ops */
 static struct intel_mid_ops *intel_mid_ops;
 /* getter function for sub arch ops*/
-static void *(*get_intel_mid_ops[])(void) = INTEL_MID_OPS_INIT;
+static const void *(*get_intel_mid_ops[])(void) = INTEL_MID_OPS_INIT;
 enum intel_mid_cpu_type __intel_mid_cpu_chip;
 EXPORT_SYMBOL_GPL(__intel_mid_cpu_chip);
 
@@ -71,9 +71,10 @@ static void intel_mid_power_off(void)
 {
 };
 
-static void intel_mid_reboot(void)
+static void __noreturn intel_mid_reboot(void)
 {
 	intel_scu_ipc_simple_command(IPCMSG_COLD_BOOT, 0);
+	BUG();
 }
 
 static unsigned long __init intel_mid_calibrate_tsc(void)
diff --git a/arch/x86/platform/intel-mid/intel_mid_weak_decls.h b/arch/x86/platform/intel-mid/intel_mid_weak_decls.h
index 3c1c386..59a68ed 100644
--- a/arch/x86/platform/intel-mid/intel_mid_weak_decls.h
+++ b/arch/x86/platform/intel-mid/intel_mid_weak_decls.h
@@ -13,6 +13,6 @@
 /* For every CPU addition a new get_<cpuname>_ops interface needs
  * to be added.
  */
-extern void *get_penwell_ops(void);
-extern void *get_cloverview_ops(void);
-extern void *get_tangier_ops(void);
+extern const void *get_penwell_ops(void);
+extern const void *get_cloverview_ops(void);
+extern const void *get_tangier_ops(void);
diff --git a/arch/x86/platform/intel-mid/mfld.c b/arch/x86/platform/intel-mid/mfld.c
index 1eb47b6..dadfb57 100644
--- a/arch/x86/platform/intel-mid/mfld.c
+++ b/arch/x86/platform/intel-mid/mfld.c
@@ -61,12 +61,12 @@ static void __init penwell_arch_setup(void)
 	pm_power_off = mfld_power_off;
 }
 
-void *get_penwell_ops(void)
+const void *get_penwell_ops(void)
 {
 	return &penwell_ops;
 }
 
-void *get_cloverview_ops(void)
+const void *get_cloverview_ops(void)
 {
 	return &penwell_ops;
 }
diff --git a/arch/x86/platform/intel-mid/mrfl.c b/arch/x86/platform/intel-mid/mrfl.c
index bd1adc6..e4f8c74 100644
--- a/arch/x86/platform/intel-mid/mrfl.c
+++ b/arch/x86/platform/intel-mid/mrfl.c
@@ -94,7 +94,7 @@ static struct intel_mid_ops tangier_ops = {
 	.arch_setup = tangier_arch_setup,
 };
 
-void *get_tangier_ops(void)
+const void *get_tangier_ops(void)
 {
 	return &tangier_ops;
 }
diff --git a/arch/x86/platform/intel-quark/imr_selftest.c b/arch/x86/platform/intel-quark/imr_selftest.c
index f5bad40..da1428a 100644
--- a/arch/x86/platform/intel-quark/imr_selftest.c
+++ b/arch/x86/platform/intel-quark/imr_selftest.c
@@ -54,7 +54,7 @@ static void __init imr_self_test_result(int res, const char *fmt, ...)
  */
 static void __init imr_self_test(void)
 {
-	phys_addr_t base  = virt_to_phys(&_text);
+	phys_addr_t base  = virt_to_phys((void *)ktla_ktva((unsigned long)_text));
 	size_t size = virt_to_phys(&__end_rodata) - base;
 	const char *fmt_over = "overlapped IMR @ (0x%08lx - 0x%08lx)\n";
 	int ret;
diff --git a/arch/x86/platform/olpc/olpc_dt.c b/arch/x86/platform/olpc/olpc_dt.c
index d6ee929..3637cb5 100644
--- a/arch/x86/platform/olpc/olpc_dt.c
+++ b/arch/x86/platform/olpc/olpc_dt.c
@@ -156,7 +156,7 @@ void * __init prom_early_alloc(unsigned long size)
 	return res;
 }
 
-static struct of_pdt_ops prom_olpc_ops __initdata = {
+static struct of_pdt_ops prom_olpc_ops __initconst = {
 	.nextprop = olpc_dt_nextprop,
 	.getproplen = olpc_dt_getproplen,
 	.getproperty = olpc_dt_getproperty,
diff --git a/arch/x86/power/cpu.c b/arch/x86/power/cpu.c
index d5f6499..12939f1 100644
--- a/arch/x86/power/cpu.c
+++ b/arch/x86/power/cpu.c
@@ -159,11 +159,8 @@ static void do_fpu_end(void)
 static void fix_processor_context(void)
 {
 	int cpu = smp_processor_id();
-	struct tss_struct *t = &per_cpu(cpu_tss, cpu);
-#ifdef CONFIG_X86_64
-	struct desc_struct *desc = get_cpu_gdt_table(cpu);
-	tss_desc tss;
-#endif
+	struct tss_struct *t = cpu_tss + cpu;
+
 	set_tss_desc(cpu, t);	/*
 				 * This just modifies memory; should not be
 				 * necessary. But... This is necessary, because
@@ -172,10 +169,6 @@ static void fix_processor_context(void)
 				 */
 
 #ifdef CONFIG_X86_64
-	memcpy(&tss, &desc[GDT_ENTRY_TSS], sizeof(tss_desc));
-	tss.type = 0x9; /* The available 64-bit TSS (see AMD vol 2, pg 91 */
-	write_gdt_entry(desc, GDT_ENTRY_TSS, &tss, DESC_TSS);
-
 	syscall_init();				/* This sets MSR_*STAR and related */
 #endif
 	load_TR_desc();				/* This does ltr */
diff --git a/arch/x86/realmode/init.c b/arch/x86/realmode/init.c
index 0b7a63d..dff2199 100644
--- a/arch/x86/realmode/init.c
+++ b/arch/x86/realmode/init.c
@@ -68,7 +68,13 @@ void __init setup_real_mode(void)
 		__va(real_mode_header->trampoline_header);
 
 #ifdef CONFIG_X86_32
-	trampoline_header->start = __pa_symbol(startup_32_smp);
+	trampoline_header->start = __pa_symbol(ktla_ktva((unsigned long)startup_32_smp));
+
+#ifdef CONFIG_PAX_KERNEXEC
+	trampoline_header->start -= LOAD_PHYSICAL_ADDR;
+#endif
+
+	trampoline_header->boot_cs = __BOOT_CS;
 	trampoline_header->gdt_limit = __BOOT_DS + 7;
 	trampoline_header->gdt_base = __pa_symbol(boot_gdt);
 #else
@@ -84,7 +90,7 @@ void __init setup_real_mode(void)
 	*trampoline_cr4_features = __read_cr4();
 
 	trampoline_pgd = (u64 *) __va(real_mode_header->trampoline_pgd);
-	trampoline_pgd[0] = init_level4_pgt[pgd_index(__PAGE_OFFSET)].pgd;
+	trampoline_pgd[0] = init_level4_pgt[pgd_index(__PAGE_OFFSET)].pgd & ~_PAGE_NX;
 	trampoline_pgd[511] = init_level4_pgt[511].pgd;
 #endif
 }
diff --git a/arch/x86/realmode/rm/header.S b/arch/x86/realmode/rm/header.S
index a28221d..93c40f1 100644
--- a/arch/x86/realmode/rm/header.S
+++ b/arch/x86/realmode/rm/header.S
@@ -30,7 +30,9 @@ GLOBAL(real_mode_header)
 #endif
 	/* APM/BIOS reboot */
 	.long	pa_machine_real_restart_asm
-#ifdef CONFIG_X86_64
+#ifdef CONFIG_X86_32
+	.long	__KERNEL_CS
+#else
 	.long	__KERNEL32_CS
 #endif
 END(real_mode_header)
diff --git a/arch/x86/realmode/rm/reboot.S b/arch/x86/realmode/rm/reboot.S
index d66c607..3def845 100644
--- a/arch/x86/realmode/rm/reboot.S
+++ b/arch/x86/realmode/rm/reboot.S
@@ -27,6 +27,10 @@ ENTRY(machine_real_restart_asm)
 	lgdtl	pa_tr_gdt
 
 	/* Disable paging to drop us out of long mode */
+	movl	%cr4, %eax
+	andl	$~X86_CR4_PCIDE, %eax
+	movl	%eax, %cr4
+
 	movl	%cr0, %eax
 	andl	$~X86_CR0_PG, %eax
 	movl	%eax, %cr0
diff --git a/arch/x86/realmode/rm/trampoline_32.S b/arch/x86/realmode/rm/trampoline_32.S
index 48ddd76..c26749f 100644
--- a/arch/x86/realmode/rm/trampoline_32.S
+++ b/arch/x86/realmode/rm/trampoline_32.S
@@ -24,6 +24,12 @@
 #include <asm/page_types.h>
 #include "realmode.h"
 
+#ifdef CONFIG_PAX_KERNEXEC
+#define ta(X) (X)
+#else
+#define ta(X) (pa_ ## X)
+#endif
+
 	.text
 	.code16
 
@@ -38,8 +44,6 @@ ENTRY(trampoline_start)
 
 	cli			# We should be safe anyway
 
-	movl	tr_start, %eax	# where we need to go
-
 	movl	$0xA5A5A5A5, trampoline_status
 				# write marker for master knows we're running
 
@@ -55,7 +59,7 @@ ENTRY(trampoline_start)
 	movw	$1, %dx			# protected mode (PE) bit
 	lmsw	%dx			# into protected mode
 
-	ljmpl	$__BOOT_CS, $pa_startup_32
+	ljmpl *(trampoline_header)
 
 	.section ".text32","ax"
 	.code32
@@ -66,7 +70,7 @@ ENTRY(startup_32)			# note: also used from wakeup_asm.S
 	.balign 8
 GLOBAL(trampoline_header)
 	tr_start:		.space	4
-	tr_gdt_pad:		.space	2
+	tr_boot_cs:		.space	2
 	tr_gdt:			.space	6
 END(trampoline_header)
 	
diff --git a/arch/x86/realmode/rm/trampoline_64.S b/arch/x86/realmode/rm/trampoline_64.S
index dac7b20..72dbaca 100644
--- a/arch/x86/realmode/rm/trampoline_64.S
+++ b/arch/x86/realmode/rm/trampoline_64.S
@@ -93,6 +93,7 @@ ENTRY(startup_32)
 	movl	%edx, %gs
 
 	movl	pa_tr_cr4, %eax
+	andl	$~X86_CR4_PCIDE, %eax
 	movl	%eax, %cr4		# Enable PAE mode
 
 	# Setup trampoline 4 level pagetables
@@ -106,7 +107,7 @@ ENTRY(startup_32)
 	wrmsr
 
 	# Enable paging and in turn activate Long Mode
-	movl	$(X86_CR0_PG | X86_CR0_WP | X86_CR0_PE), %eax
+	movl	$(X86_CR0_PG | X86_CR0_PE), %eax
 	movl	%eax, %cr0
 
 	/*
diff --git a/arch/x86/realmode/rm/wakeup_asm.S b/arch/x86/realmode/rm/wakeup_asm.S
index 9e7e147..25a4158 100644
--- a/arch/x86/realmode/rm/wakeup_asm.S
+++ b/arch/x86/realmode/rm/wakeup_asm.S
@@ -126,11 +126,10 @@ ENTRY(wakeup_start)
 	lgdtl	pmode_gdt
 
 	/* This really couldn't... */
-	movl	pmode_entry, %eax
 	movl	pmode_cr0, %ecx
 	movl	%ecx, %cr0
-	ljmpl	$__KERNEL_CS, $pa_startup_32
-	/* -> jmp *%eax in trampoline_32.S */
+
+	ljmpl	*pmode_entry
 #else
 	jmp	trampoline_start
 #endif
diff --git a/arch/x86/tools/Makefile b/arch/x86/tools/Makefile
index 604a37e..e49702a 100644
--- a/arch/x86/tools/Makefile
+++ b/arch/x86/tools/Makefile
@@ -37,7 +37,7 @@ $(obj)/test_get_len.o: $(srctree)/arch/x86/lib/insn.c $(srctree)/arch/x86/lib/in
 
 $(obj)/insn_sanity.o: $(srctree)/arch/x86/lib/insn.c $(srctree)/arch/x86/lib/inat.c $(srctree)/arch/x86/include/asm/inat_types.h $(srctree)/arch/x86/include/asm/inat.h $(srctree)/arch/x86/include/asm/insn.h $(objtree)/arch/x86/lib/inat-tables.c
 
-HOST_EXTRACFLAGS += -I$(srctree)/tools/include
+HOST_EXTRACFLAGS += -I$(srctree)/tools/include -ggdb
 hostprogs-y	+= relocs
 relocs-objs     := relocs_32.o relocs_64.o relocs_common.o
 PHONY += relocs
diff --git a/arch/x86/tools/relocs.c b/arch/x86/tools/relocs.c
index 0c2fae8..1d2a079 100644
--- a/arch/x86/tools/relocs.c
+++ b/arch/x86/tools/relocs.c
@@ -1,5 +1,7 @@
 /* This is included from relocs_32/64.c */
 
+#include "../../../include/generated/autoconf.h"
+
 #define ElfW(type)		_ElfW(ELF_BITS, type)
 #define _ElfW(bits, type)	__ElfW(bits, type)
 #define __ElfW(bits, type)	Elf##bits##_##type
@@ -11,6 +13,7 @@
 #define Elf_Sym			ElfW(Sym)
 
 static Elf_Ehdr ehdr;
+static Elf_Phdr *phdr;
 
 struct relocs {
 	uint32_t	*offset;
@@ -45,6 +48,7 @@ static const char * const sym_regex_kernel[S_NSYMTYPES] = {
 	"^(xen_irq_disable_direct_reloc$|"
 	"xen_save_fl_direct_reloc$|"
 	"VDSO|"
+	"__rap_hash_|"
 	"__crc_)",
 
 /*
@@ -386,9 +390,39 @@ static void read_ehdr(FILE *fp)
 	}
 }
 
+static void read_phdrs(FILE *fp)
+{
+	unsigned int i;
+
+	phdr = calloc(ehdr.e_phnum, sizeof(Elf_Phdr));
+	if (!phdr) {
+		die("Unable to allocate %d program headers\n",
+		    ehdr.e_phnum);
+	}
+	if (fseek(fp, ehdr.e_phoff, SEEK_SET) < 0) {
+		die("Seek to %d failed: %s\n",
+			ehdr.e_phoff, strerror(errno));
+	}
+	if (fread(phdr, sizeof(*phdr), ehdr.e_phnum, fp) != ehdr.e_phnum) {
+		die("Cannot read ELF program headers: %s\n",
+			strerror(errno));
+	}
+	for(i = 0; i < ehdr.e_phnum; i++) {
+		phdr[i].p_type      = elf_word_to_cpu(phdr[i].p_type);
+		phdr[i].p_offset    = elf_off_to_cpu(phdr[i].p_offset);
+		phdr[i].p_vaddr     = elf_addr_to_cpu(phdr[i].p_vaddr);
+		phdr[i].p_paddr     = elf_addr_to_cpu(phdr[i].p_paddr);
+		phdr[i].p_filesz    = elf_word_to_cpu(phdr[i].p_filesz);
+		phdr[i].p_memsz     = elf_word_to_cpu(phdr[i].p_memsz);
+		phdr[i].p_flags     = elf_word_to_cpu(phdr[i].p_flags);
+		phdr[i].p_align     = elf_word_to_cpu(phdr[i].p_align);
+	}
+
+}
+
 static void read_shdrs(FILE *fp)
 {
-	int i;
+	unsigned int i;
 	Elf_Shdr shdr;
 
 	secs = calloc(ehdr.e_shnum, sizeof(struct section));
@@ -423,7 +457,7 @@ static void read_shdrs(FILE *fp)
 
 static void read_strtabs(FILE *fp)
 {
-	int i;
+	unsigned int i;
 	for (i = 0; i < ehdr.e_shnum; i++) {
 		struct section *sec = &secs[i];
 		if (sec->shdr.sh_type != SHT_STRTAB) {
@@ -448,7 +482,7 @@ static void read_strtabs(FILE *fp)
 
 static void read_symtabs(FILE *fp)
 {
-	int i,j;
+	unsigned int i,j;
 	for (i = 0; i < ehdr.e_shnum; i++) {
 		struct section *sec = &secs[i];
 		if (sec->shdr.sh_type != SHT_SYMTAB) {
@@ -479,9 +513,11 @@ static void read_symtabs(FILE *fp)
 }
 
 
-static void read_relocs(FILE *fp)
+static void read_relocs(FILE *fp, int use_real_mode)
 {
-	int i,j;
+	unsigned int i,j;
+	uint32_t base;
+
 	for (i = 0; i < ehdr.e_shnum; i++) {
 		struct section *sec = &secs[i];
 		if (sec->shdr.sh_type != SHT_REL_TYPE) {
@@ -501,9 +537,22 @@ static void read_relocs(FILE *fp)
 			die("Cannot read symbol table: %s\n",
 				strerror(errno));
 		}
+		base = 0;
+
+#ifdef CONFIG_X86_32
+		for (j = 0; !use_real_mode && j < ehdr.e_phnum; j++) {
+			if (phdr[j].p_type != PT_LOAD )
+				continue;
+			if (secs[sec->shdr.sh_info].shdr.sh_offset < phdr[j].p_offset || secs[sec->shdr.sh_info].shdr.sh_offset >= phdr[j].p_offset + phdr[j].p_filesz)
+				continue;
+			base = CONFIG_PAGE_OFFSET + phdr[j].p_paddr - phdr[j].p_vaddr;
+			break;
+		}
+#endif
+
 		for (j = 0; j < sec->shdr.sh_size/sizeof(Elf_Rel); j++) {
 			Elf_Rel *rel = &sec->reltab[j];
-			rel->r_offset = elf_addr_to_cpu(rel->r_offset);
+			rel->r_offset = elf_addr_to_cpu(rel->r_offset) + base;
 			rel->r_info   = elf_xword_to_cpu(rel->r_info);
 #if (SHT_REL_TYPE == SHT_RELA)
 			rel->r_addend = elf_xword_to_cpu(rel->r_addend);
@@ -515,7 +564,7 @@ static void read_relocs(FILE *fp)
 
 static void print_absolute_symbols(void)
 {
-	int i;
+	unsigned int i;
 	const char *format;
 
 	if (ELF_BITS == 64)
@@ -528,7 +577,7 @@ static void print_absolute_symbols(void)
 	for (i = 0; i < ehdr.e_shnum; i++) {
 		struct section *sec = &secs[i];
 		char *sym_strtab;
-		int j;
+		unsigned int j;
 
 		if (sec->shdr.sh_type != SHT_SYMTAB) {
 			continue;
@@ -555,7 +604,7 @@ static void print_absolute_symbols(void)
 
 static void print_absolute_relocs(void)
 {
-	int i, printed = 0;
+	unsigned int i, printed = 0;
 	const char *format;
 
 	if (ELF_BITS == 64)
@@ -568,7 +617,7 @@ static void print_absolute_relocs(void)
 		struct section *sec_applies, *sec_symtab;
 		char *sym_strtab;
 		Elf_Sym *sh_symtab;
-		int j;
+		unsigned int j;
 		if (sec->shdr.sh_type != SHT_REL_TYPE) {
 			continue;
 		}
@@ -645,13 +694,13 @@ static void add_reloc(struct relocs *r, uint32_t offset)
 static void walk_relocs(int (*process)(struct section *sec, Elf_Rel *rel,
 			Elf_Sym *sym, const char *symname))
 {
-	int i;
+	unsigned int i;
 	/* Walk through the relocations */
 	for (i = 0; i < ehdr.e_shnum; i++) {
 		char *sym_strtab;
 		Elf_Sym *sh_symtab;
 		struct section *sec_applies, *sec_symtab;
-		int j;
+		unsigned int j;
 		struct section *sec = &secs[i];
 
 		if (sec->shdr.sh_type != SHT_REL_TYPE) {
@@ -697,7 +746,7 @@ static void walk_relocs(int (*process)(struct section *sec, Elf_Rel *rel,
  * kernel data and does not require special treatment.
  *
  */
-static int per_cpu_shndx	= -1;
+static unsigned int per_cpu_shndx = ~0;
 static Elf_Addr per_cpu_load_addr;
 
 static void percpu_init(void)
@@ -830,6 +879,23 @@ static int do_reloc32(struct section *sec, Elf_Rel *rel, Elf_Sym *sym,
 {
 	unsigned r_type = ELF32_R_TYPE(rel->r_info);
 	int shn_abs = (sym->st_shndx == SHN_ABS) && !is_reloc(S_REL, symname);
+	char *sym_strtab = sec->link->link->strtab;
+
+	/* Don't relocate actual per-cpu variables, they are absolute indices, not addresses */
+	if (!strcmp(sec_name(sym->st_shndx), ".data..percpu") && strcmp(sym_name(sym_strtab, sym), "__per_cpu_load"))
+		return 0;
+
+#ifdef CONFIG_PAX_KERNEXEC
+	/* Don't relocate actual code, they are relocated implicitly by the base address of KERNEL_CS */
+	if (!strcmp(sec_name(sym->st_shndx), ".text.end") && !strcmp(sym_name(sym_strtab, sym), "_etext"))
+		return 0;
+	if (!strcmp(sec_name(sym->st_shndx), ".init.text"))
+		return 0;
+	if (!strcmp(sec_name(sym->st_shndx), ".exit.text"))
+		return 0;
+	if (!strcmp(sec_name(sym->st_shndx), ".text") && strcmp(sym_name(sym_strtab, sym), "__LOAD_PHYSICAL_ADDR"))
+		return 0;
+#endif
 
 	switch (r_type) {
 	case R_386_NONE:
@@ -968,7 +1034,7 @@ static int write32_as_text(uint32_t v, FILE *f)
 
 static void emit_relocs(int as_text, int use_real_mode)
 {
-	int i;
+	unsigned int i;
 	int (*write_reloc)(uint32_t, FILE *) = write32;
 	int (*do_reloc)(struct section *sec, Elf_Rel *rel, Elf_Sym *sym,
 			const char *symname);
@@ -1078,10 +1144,11 @@ void process(FILE *fp, int use_real_mode, int as_text,
 {
 	regex_init(use_real_mode);
 	read_ehdr(fp);
+	read_phdrs(fp);
 	read_shdrs(fp);
 	read_strtabs(fp);
 	read_symtabs(fp);
-	read_relocs(fp);
+	read_relocs(fp, use_real_mode);
 	if (ELF_BITS == 64)
 		percpu_init();
 	if (show_absolute_syms) {
diff --git a/arch/x86/um/mem_32.c b/arch/x86/um/mem_32.c
index 744afdc..a0b8a0d 100644
--- a/arch/x86/um/mem_32.c
+++ b/arch/x86/um/mem_32.c
@@ -20,7 +20,7 @@ static int __init gate_vma_init(void)
 	gate_vma.vm_start = FIXADDR_USER_START;
 	gate_vma.vm_end = FIXADDR_USER_END;
 	gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC;
-	gate_vma.vm_page_prot = __P101;
+	gate_vma.vm_page_prot = vm_get_page_prot(gate_vma.vm_flags);
 
 	return 0;
 }
diff --git a/arch/x86/um/tls_32.c b/arch/x86/um/tls_32.c
index 48e3858..ab4458c 100644
--- a/arch/x86/um/tls_32.c
+++ b/arch/x86/um/tls_32.c
@@ -261,7 +261,7 @@ out:
 	if (unlikely(task == current &&
 		     !t->arch.tls_array[idx - GDT_ENTRY_TLS_MIN].flushed)) {
 		printk(KERN_ERR "get_tls_entry: task with pid %d got here "
-				"without flushed TLS.", current->pid);
+				"without flushed TLS.", task_pid_nr(current));
 	}
 
 	return 0;
diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig
index c7b15f3..cc09a65 100644
--- a/arch/x86/xen/Kconfig
+++ b/arch/x86/xen/Kconfig
@@ -10,6 +10,7 @@ config XEN
 	select XEN_HAVE_VPMU
 	depends on X86_64 || (X86_32 && X86_PAE)
 	depends on X86_LOCAL_APIC && X86_TSC
+	depends on !GRKERNSEC_CONFIG_AUTO || GRKERNSEC_CONFIG_VIRT_XEN
 	help
 	  This is the Linux Xen port.  Enabling this will allow the
 	  kernel to boot in a paravirtualized environment under the
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 880862c..53dcb02 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -132,8 +132,6 @@ EXPORT_SYMBOL_GPL(xen_start_info);
 
 struct shared_info xen_dummy_shared_info;
 
-void *xen_initial_gdt;
-
 RESERVE_BRK(shared_info_page_brk, PAGE_SIZE);
 __read_mostly int xen_have_vector_callback;
 EXPORT_SYMBOL_GPL(xen_have_vector_callback);
@@ -591,8 +589,7 @@ static void xen_load_gdt(const struct desc_ptr *dtr)
 {
 	unsigned long va = dtr->address;
 	unsigned int size = dtr->size + 1;
-	unsigned pages = (size + PAGE_SIZE - 1) / PAGE_SIZE;
-	unsigned long frames[pages];
+	unsigned long frames[65536 / PAGE_SIZE];
 	int f;
 
 	/*
@@ -640,8 +637,7 @@ static void __init xen_load_gdt_boot(const struct desc_ptr *dtr)
 {
 	unsigned long va = dtr->address;
 	unsigned int size = dtr->size + 1;
-	unsigned pages = (size + PAGE_SIZE - 1) / PAGE_SIZE;
-	unsigned long frames[pages];
+	unsigned long frames[(GDT_SIZE + PAGE_SIZE - 1) / PAGE_SIZE];
 	int f;
 
 	/*
@@ -649,7 +645,7 @@ static void __init xen_load_gdt_boot(const struct desc_ptr *dtr)
 	 * 8-byte entries, or 16 4k pages..
 	 */
 
-	BUG_ON(size > 65536);
+	BUG_ON(size > GDT_SIZE);
 	BUG_ON(va & ~PAGE_MASK);
 
 	for (f = 0; va < dtr->address + size; va += PAGE_SIZE, f++) {
@@ -778,7 +774,7 @@ static int cvt_gate_to_trap(int vector, const gate_desc *val,
 	 * so we should never see them.  Warn if
 	 * there's an unexpected IST-using fault handler.
 	 */
-	if (addr == (unsigned long)debug)
+	if (addr == (unsigned long)int1)
 		addr = (unsigned long)xen_debug;
 	else if (addr == (unsigned long)int3)
 		addr = (unsigned long)xen_int3;
@@ -1263,7 +1259,7 @@ static const struct pv_cpu_ops xen_cpu_ops __initconst = {
 	.end_context_switch = xen_end_context_switch,
 };
 
-static void xen_reboot(int reason)
+static __noreturn void xen_reboot(int reason)
 {
 	struct sched_shutdown r = { .reason = reason };
 	int cpu;
@@ -1271,26 +1267,26 @@ static void xen_reboot(int reason)
 	for_each_online_cpu(cpu)
 		xen_pmu_finish(cpu);
 
-	if (HYPERVISOR_sched_op(SCHEDOP_shutdown, &r))
-		BUG();
+	HYPERVISOR_sched_op(SCHEDOP_shutdown, &r);
+	BUG();
 }
 
-static void xen_restart(char *msg)
+static __noreturn void xen_restart(char *msg)
 {
 	xen_reboot(SHUTDOWN_reboot);
 }
 
-static void xen_emergency_restart(void)
+static __noreturn void xen_emergency_restart(void)
 {
 	xen_reboot(SHUTDOWN_reboot);
 }
 
-static void xen_machine_halt(void)
+static __noreturn void xen_machine_halt(void)
 {
 	xen_reboot(SHUTDOWN_poweroff);
 }
 
-static void xen_machine_power_off(void)
+static __noreturn void xen_machine_power_off(void)
 {
 	if (pm_power_off)
 		pm_power_off();
@@ -1443,8 +1439,11 @@ static void __ref xen_setup_gdt(int cpu)
 	pv_cpu_ops.write_gdt_entry = xen_write_gdt_entry_boot;
 	pv_cpu_ops.load_gdt = xen_load_gdt_boot;
 
-	setup_stack_canary_segment(0);
-	switch_to_new_gdt(0);
+	setup_stack_canary_segment(cpu);
+#ifdef CONFIG_X86_64
+	load_percpu_segment(cpu);
+#endif
+	switch_to_new_gdt(cpu);
 
 	pv_cpu_ops.write_gdt_entry = xen_write_gdt_entry;
 	pv_cpu_ops.load_gdt = xen_load_gdt;
@@ -1561,7 +1560,17 @@ asmlinkage __visible void __init xen_start_kernel(void)
 	__userpte_alloc_gfp &= ~__GFP_HIGHMEM;
 
 	/* Work out if we support NX */
-	x86_configure_nx();
+#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
+	if ((cpuid_eax(0x80000000) & 0xffff0000) == 0x80000000 &&
+	    (cpuid_edx(0x80000001) & (1U << (X86_FEATURE_NX & 31)))) {
+		unsigned l, h;
+
+		__supported_pte_mask |= _PAGE_NX;
+		rdmsr(MSR_EFER, l, h);
+		l |= EFER_NX;
+		wrmsr(MSR_EFER, l, h);
+	}
+#endif
 
 	/* Get mfn list */
 	xen_build_dynamic_phys_to_machine();
@@ -1589,13 +1598,6 @@ asmlinkage __visible void __init xen_start_kernel(void)
 
 	machine_ops = xen_machine_ops;
 
-	/*
-	 * The only reliable way to retain the initial address of the
-	 * percpu gdt_page is to remember it here, so we can go and
-	 * mark it RW later, when the initial percpu area is freed.
-	 */
-	xen_initial_gdt = &per_cpu(gdt_page, 0);
-
 	xen_smp_init();
 
 #ifdef CONFIG_ACPI_NUMA
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 478a2de..4f5e7b6 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -1950,7 +1950,14 @@ void __init xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn)
 		 * L3_k[511] -> level2_fixmap_pgt */
 		convert_pfn_mfn(level3_kernel_pgt);
 
+		convert_pfn_mfn(level3_vmalloc_start_pgt[0]);
+		convert_pfn_mfn(level3_vmalloc_start_pgt[1]);
+		convert_pfn_mfn(level3_vmalloc_start_pgt[2]);
+		convert_pfn_mfn(level3_vmalloc_start_pgt[3]);
+		convert_pfn_mfn(level3_vmalloc_end_pgt);
+		convert_pfn_mfn(level3_vmemmap_pgt);
 		/* L3_k[511][506] -> level1_fixmap_pgt */
+		/* L3_k[511][507] -> level1_vsyscall_pgt */
 		convert_pfn_mfn(level2_fixmap_pgt);
 	}
 	/* We get [511][511] and have Xen's version of level2_kernel_pgt */
@@ -1980,11 +1987,25 @@ void __init xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn)
 		set_page_prot(init_level4_pgt, PAGE_KERNEL_RO);
 		set_page_prot(level3_ident_pgt, PAGE_KERNEL_RO);
 		set_page_prot(level3_kernel_pgt, PAGE_KERNEL_RO);
+		set_page_prot(level3_vmalloc_start_pgt[0], PAGE_KERNEL_RO);
+		set_page_prot(level3_vmalloc_start_pgt[1], PAGE_KERNEL_RO);
+		set_page_prot(level3_vmalloc_start_pgt[2], PAGE_KERNEL_RO);
+		set_page_prot(level3_vmalloc_start_pgt[3], PAGE_KERNEL_RO);
+		set_page_prot(level3_vmalloc_end_pgt, PAGE_KERNEL_RO);
+		set_page_prot(level3_vmemmap_pgt, PAGE_KERNEL_RO);
 		set_page_prot(level3_user_vsyscall, PAGE_KERNEL_RO);
 		set_page_prot(level2_ident_pgt, PAGE_KERNEL_RO);
+		set_page_prot(level2_vmemmap_pgt, PAGE_KERNEL_RO);
 		set_page_prot(level2_kernel_pgt, PAGE_KERNEL_RO);
 		set_page_prot(level2_fixmap_pgt, PAGE_KERNEL_RO);
-		set_page_prot(level1_fixmap_pgt, PAGE_KERNEL_RO);
+		set_page_prot(level1_modules_pgt[0], PAGE_KERNEL_RO);
+		set_page_prot(level1_modules_pgt[1], PAGE_KERNEL_RO);
+		set_page_prot(level1_modules_pgt[2], PAGE_KERNEL_RO);
+		set_page_prot(level1_modules_pgt[3], PAGE_KERNEL_RO);
+		set_page_prot(level1_fixmap_pgt[0], PAGE_KERNEL_RO);
+		set_page_prot(level1_fixmap_pgt[1], PAGE_KERNEL_RO);
+		set_page_prot(level1_fixmap_pgt[2], PAGE_KERNEL_RO);
+		set_page_prot(level1_vsyscall_pgt, PAGE_KERNEL_RO);
 
 		/* Pin down new L4 */
 		pin_pagetable_pfn(MMUEXT_PIN_L4_TABLE,
@@ -2395,6 +2416,7 @@ static void __init xen_post_allocator_init(void)
 	pv_mmu_ops.set_pud = xen_set_pud;
 #if CONFIG_PGTABLE_LEVELS == 4
 	pv_mmu_ops.set_pgd = xen_set_pgd;
+	pv_mmu_ops.set_pgd_batched = xen_set_pgd;
 #endif
 
 	/* This will work as long as patching hasn't happened yet
@@ -2423,6 +2445,10 @@ static void xen_leave_lazy_mmu(void)
 	preempt_enable();
 }
 
+static void xen_pte_update(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+{
+}
+
 static const struct pv_mmu_ops xen_mmu_ops __initconst = {
 	.read_cr2 = xen_read_cr2,
 	.write_cr2 = xen_write_cr2,
@@ -2435,7 +2461,7 @@ static const struct pv_mmu_ops xen_mmu_ops __initconst = {
 	.flush_tlb_single = xen_flush_tlb_single,
 	.flush_tlb_others = xen_flush_tlb_others,
 
-	.pte_update = paravirt_nop,
+	.pte_update = xen_pte_update,
 
 	.pgd_alloc = xen_pgd_alloc,
 	.pgd_free = xen_pgd_free,
@@ -2472,6 +2498,7 @@ static const struct pv_mmu_ops xen_mmu_ops __initconst = {
 	.pud_val = PV_CALLEE_SAVE(xen_pud_val),
 	.make_pud = PV_CALLEE_SAVE(xen_make_pud),
 	.set_pgd = xen_set_pgd_hyper,
+	.set_pgd_batched = xen_set_pgd_hyper,
 
 	.alloc_pud = xen_alloc_pmd_init,
 	.release_pud = xen_release_pmd_init,
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index 719cf29..8a13fd8 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -306,17 +306,13 @@ static void __init xen_smp_prepare_boot_cpu(void)
 
 	if (xen_pv_domain()) {
 		if (!xen_feature(XENFEAT_writable_page_tables))
-			/* We've switched to the "real" per-cpu gdt, so make
-			 * sure the old memory can be recycled. */
-			make_lowmem_page_readwrite(xen_initial_gdt);
-
 #ifdef CONFIG_X86_32
 		/*
 		 * Xen starts us with XEN_FLAT_RING1_DS, but linux code
 		 * expects __USER_DS
 		 */
-		loadsegment(ds, __USER_DS);
-		loadsegment(es, __USER_DS);
+		loadsegment(ds, __KERNEL_DS);
+		loadsegment(es, __KERNEL_DS);
 #endif
 
 		xen_filter_cpu_maps();
@@ -399,7 +395,7 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle)
 #ifdef CONFIG_X86_32
 	/* Note: PVH is not yet supported on x86_32. */
 	ctxt->user_regs.fs = __KERNEL_PERCPU;
-	ctxt->user_regs.gs = __KERNEL_STACK_CANARY;
+	savesegment(gs, ctxt->user_regs.gs);
 #endif
 	memset(&ctxt->fpu_ctxt, 0, sizeof(ctxt->fpu_ctxt));
 
@@ -407,8 +403,8 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle)
 		ctxt->user_regs.eip = (unsigned long)cpu_bringup_and_idle;
 		ctxt->flags = VGCF_IN_KERNEL;
 		ctxt->user_regs.eflags = 0x1000; /* IOPL_RING1 */
-		ctxt->user_regs.ds = __USER_DS;
-		ctxt->user_regs.es = __USER_DS;
+		ctxt->user_regs.ds = __KERNEL_DS;
+		ctxt->user_regs.es = __KERNEL_DS;
 		ctxt->user_regs.ss = __KERNEL_DS;
 
 		xen_copy_trap_info(ctxt->trap_ctxt);
@@ -749,7 +745,7 @@ static const struct smp_ops xen_smp_ops __initconst = {
 
 void __init xen_smp_init(void)
 {
-	smp_ops = xen_smp_ops;
+	memcpy((void *)&smp_ops, &xen_smp_ops, sizeof smp_ops);
 	xen_fill_possible_map();
 }
 
diff --git a/arch/x86/xen/xen-asm_32.S b/arch/x86/xen/xen-asm_32.S
index feb6d40..e59382c 100644
--- a/arch/x86/xen/xen-asm_32.S
+++ b/arch/x86/xen/xen-asm_32.S
@@ -85,7 +85,7 @@ ENTRY(xen_iret)
 	pushw %fs
 	movl $(__KERNEL_PERCPU), %eax
 	movl %eax, %fs
-	movl %fs:xen_vcpu, %eax
+	mov PER_CPU_VAR(xen_vcpu), %eax
 	POP_FS
 #else
 	movl %ss:xen_vcpu, %eax
diff --git a/arch/x86/xen/xen-head.S b/arch/x86/xen/xen-head.S
index 7f8d8ab..8ecf53e 100644
--- a/arch/x86/xen/xen-head.S
+++ b/arch/x86/xen/xen-head.S
@@ -50,6 +50,18 @@ ENTRY(startup_xen)
 	mov %_ASM_SI, xen_start_info
 	mov $init_thread_union+THREAD_SIZE, %_ASM_SP
 
+#if defined(CONFIG_X86_32) && defined(CONFIG_SMP)
+	movl $cpu_gdt_table,%edi
+	movl $__per_cpu_load,%eax
+	movw %ax,__KERNEL_PERCPU + 2(%edi)
+	rorl $16,%eax
+	movb %al,__KERNEL_PERCPU + 4(%edi)
+	movb %ah,__KERNEL_PERCPU + 7(%edi)
+	movl $__per_cpu_end - 1,%eax
+	subl $__per_cpu_start,%eax
+	movw %ax,__KERNEL_PERCPU + 0(%edi)
+#endif
+
 	jmp xen_start_kernel
 
 	__FINIT
diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h
index 4140b07..a391b69 100644
--- a/arch/x86/xen/xen-ops.h
+++ b/arch/x86/xen/xen-ops.h
@@ -16,8 +16,6 @@ void xen_syscall_target(void);
 void xen_syscall32_target(void);
 #endif
 
-extern void *xen_initial_gdt;
-
 struct trap_info;
 void xen_copy_trap_info(struct trap_info *traps);
 
diff --git a/arch/xtensa/variants/dc232b/include/variant/core.h b/arch/xtensa/variants/dc232b/include/variant/core.h
index 525bd3d..ef888b1 100644
--- a/arch/xtensa/variants/dc232b/include/variant/core.h
+++ b/arch/xtensa/variants/dc232b/include/variant/core.h
@@ -119,9 +119,9 @@
   ----------------------------------------------------------------------*/
 
 #define XCHAL_ICACHE_LINESIZE		32	/* I-cache line size in bytes */
-#define XCHAL_DCACHE_LINESIZE		32	/* D-cache line size in bytes */
 #define XCHAL_ICACHE_LINEWIDTH		5	/* log2(I line size in bytes) */
 #define XCHAL_DCACHE_LINEWIDTH		5	/* log2(D line size in bytes) */
+#define XCHAL_DCACHE_LINESIZE		(_AC(1,UL) << XCHAL_DCACHE_LINEWIDTH)	/* D-cache line size in bytes */
 
 #define XCHAL_ICACHE_SIZE		16384	/* I-cache size in bytes or 0 */
 #define XCHAL_DCACHE_SIZE		16384	/* D-cache size in bytes or 0 */
diff --git a/arch/xtensa/variants/fsf/include/variant/core.h b/arch/xtensa/variants/fsf/include/variant/core.h
index 2f33760..835e50a 100644
--- a/arch/xtensa/variants/fsf/include/variant/core.h
+++ b/arch/xtensa/variants/fsf/include/variant/core.h
@@ -11,6 +11,7 @@
 #ifndef _XTENSA_CORE_H
 #define _XTENSA_CORE_H
 
+#include <linux/const.h>
 
 /****************************************************************************
 	    Parameters Useful for Any Code, USER or PRIVILEGED
@@ -112,9 +113,9 @@
   ----------------------------------------------------------------------*/
 
 #define XCHAL_ICACHE_LINESIZE		16	/* I-cache line size in bytes */
-#define XCHAL_DCACHE_LINESIZE		16	/* D-cache line size in bytes */
 #define XCHAL_ICACHE_LINEWIDTH		4	/* log2(I line size in bytes) */
 #define XCHAL_DCACHE_LINEWIDTH		4	/* log2(D line size in bytes) */
+#define XCHAL_DCACHE_LINESIZE		(_AC(1,UL) << XCHAL_DCACHE_LINEWIDTH) /* D-cache line size in bytes */
 
 #define XCHAL_ICACHE_SIZE		8192	/* I-cache size in bytes or 0 */
 #define XCHAL_DCACHE_SIZE		8192	/* D-cache size in bytes or 0 */
diff --git a/block/bio.c b/block/bio.c
index 807d25e..ac1e9e7 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -1149,7 +1149,7 @@ struct bio *bio_copy_user_iov(struct request_queue *q,
 		/*
 		 * Overflow, abort
 		 */
-		if (end < start)
+		if (end < start || end - start > INT_MAX - nr_pages)
 			return ERR_PTR(-EINVAL);
 
 		nr_pages += end - start;
@@ -1274,7 +1274,7 @@ struct bio *bio_map_user_iov(struct request_queue *q,
 		/*
 		 * Overflow, abort
 		 */
-		if (end < start)
+		if (end < start || end - start > INT_MAX - nr_pages)
 			return ERR_PTR(-EINVAL);
 
 		nr_pages += end - start;
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 66e6f1a..8fb30f4 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -561,10 +561,10 @@ u64 __blkg_prfill_rwstat(struct seq_file *sf, struct blkg_policy_data *pd,
 
 	for (i = 0; i < BLKG_RWSTAT_NR; i++)
 		seq_printf(sf, "%s %s %llu\n", dname, rwstr[i],
-			   (unsigned long long)atomic64_read(&rwstat->aux_cnt[i]));
+			   (unsigned long long)atomic64_read_unchecked(&rwstat->aux_cnt[i]));
 
-	v = atomic64_read(&rwstat->aux_cnt[BLKG_RWSTAT_READ]) +
-		atomic64_read(&rwstat->aux_cnt[BLKG_RWSTAT_WRITE]);
+	v = atomic64_read_unchecked(&rwstat->aux_cnt[BLKG_RWSTAT_READ]) +
+		atomic64_read_unchecked(&rwstat->aux_cnt[BLKG_RWSTAT_WRITE]);
 	seq_printf(sf, "%s Total %llu\n", dname, (unsigned long long)v);
 	return v;
 }
@@ -716,7 +716,7 @@ u64 blkg_stat_recursive_sum(struct blkcg_gq *blkg,
 		else
 			stat = (void *)blkg + off;
 
-		sum += blkg_stat_read(stat) + atomic64_read(&stat->aux_cnt);
+		sum += blkg_stat_read(stat) + atomic64_read_unchecked(&stat->aux_cnt);
 	}
 	rcu_read_unlock();
 
@@ -760,7 +760,7 @@ struct blkg_rwstat blkg_rwstat_recursive_sum(struct blkcg_gq *blkg,
 			rwstat = (void *)pos_blkg + off;
 
 		for (i = 0; i < BLKG_RWSTAT_NR; i++)
-			atomic64_add(atomic64_read(&rwstat->aux_cnt[i]) +
+			atomic64_add_unchecked(atomic64_read_unchecked(&rwstat->aux_cnt[i]) +
 				percpu_counter_sum_positive(&rwstat->cpu_cnt[i]),
 				&sum.aux_cnt[i]);
 	}
@@ -886,13 +886,13 @@ static int blkcg_print_stat(struct seq_file *sf, void *v)
 
 		rwstat = blkg_rwstat_recursive_sum(blkg, NULL,
 					offsetof(struct blkcg_gq, stat_bytes));
-		rbytes = atomic64_read(&rwstat.aux_cnt[BLKG_RWSTAT_READ]);
-		wbytes = atomic64_read(&rwstat.aux_cnt[BLKG_RWSTAT_WRITE]);
+		rbytes = atomic64_read_unchecked(&rwstat.aux_cnt[BLKG_RWSTAT_READ]);
+		wbytes = atomic64_read_unchecked(&rwstat.aux_cnt[BLKG_RWSTAT_WRITE]);
 
 		rwstat = blkg_rwstat_recursive_sum(blkg, NULL,
 					offsetof(struct blkcg_gq, stat_ios));
-		rios = atomic64_read(&rwstat.aux_cnt[BLKG_RWSTAT_READ]);
-		wios = atomic64_read(&rwstat.aux_cnt[BLKG_RWSTAT_WRITE]);
+		rios = atomic64_read_unchecked(&rwstat.aux_cnt[BLKG_RWSTAT_READ]);
+		wios = atomic64_read_unchecked(&rwstat.aux_cnt[BLKG_RWSTAT_WRITE]);
 
 		spin_unlock_irq(blkg->q->queue_lock);
 
diff --git a/block/blk-map.c b/block/blk-map.c
index b9f88b7..f40e6f5 100644
--- a/block/blk-map.c
+++ b/block/blk-map.c
@@ -214,7 +214,7 @@ int blk_rq_map_kern(struct request_queue *q, struct request *rq, void *kbuf,
 	if (!len || !kbuf)
 		return -EINVAL;
 
-	do_copy = !blk_rq_aligned(q, addr, len) || object_is_on_stack(kbuf);
+	do_copy = !blk_rq_aligned(q, addr, len) || object_starts_on_stack(kbuf);
 	if (do_copy)
 		bio = bio_copy_kern(q, kbuf, len, gfp_mask, reading);
 	else
diff --git a/block/blk-softirq.c b/block/blk-softirq.c
index 53b1737..08177d2e 100644
--- a/block/blk-softirq.c
+++ b/block/blk-softirq.c
@@ -18,7 +18,7 @@ static DEFINE_PER_CPU(struct list_head, blk_cpu_done);
  * Softirq action handler - move entries to local list and loop over them
  * while passing them to the queue registered handler.
  */
-static void blk_done_softirq(struct softirq_action *h)
+static __latent_entropy void blk_done_softirq(void)
 {
 	struct list_head *cpu_list, local_list;
 
diff --git a/block/bsg.c b/block/bsg.c
index d214e92..9649863 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -140,16 +140,24 @@ static int blk_fill_sgv4_hdr_rq(struct request_queue *q, struct request *rq,
 				struct sg_io_v4 *hdr, struct bsg_device *bd,
 				fmode_t has_write_perm)
 {
+	unsigned char tmpcmd[sizeof(rq->__cmd)];
+	unsigned char *cmdptr;
+
 	if (hdr->request_len > BLK_MAX_CDB) {
 		rq->cmd = kzalloc(hdr->request_len, GFP_KERNEL);
 		if (!rq->cmd)
 			return -ENOMEM;
-	}
+		cmdptr = rq->cmd;
+	} else
+		cmdptr = tmpcmd;
 
-	if (copy_from_user(rq->cmd, (void __user *)(unsigned long)hdr->request,
+	if (copy_from_user(cmdptr, (void __user *)(unsigned long)hdr->request,
 			   hdr->request_len))
 		return -EFAULT;
 
+	if (cmdptr != rq->cmd)
+		memcpy(rq->cmd, cmdptr, hdr->request_len);
+
 	if (hdr->subprotocol == BSG_SUB_PROTOCOL_SCSI_CMD) {
 		if (blk_verify_command(rq->cmd, has_write_perm))
 			return -EPERM;
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index 4a34978..d102252 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -1953,8 +1953,8 @@ static u64 cfqg_prfill_sectors_recursive(struct seq_file *sf,
 {
 	struct blkg_rwstat tmp = blkg_rwstat_recursive_sum(pd->blkg, NULL,
 					offsetof(struct blkcg_gq, stat_bytes));
-	u64 sum = atomic64_read(&tmp.aux_cnt[BLKG_RWSTAT_READ]) +
-		atomic64_read(&tmp.aux_cnt[BLKG_RWSTAT_WRITE]);
+	u64 sum = atomic64_read_unchecked(&tmp.aux_cnt[BLKG_RWSTAT_READ]) +
+		atomic64_read_unchecked(&tmp.aux_cnt[BLKG_RWSTAT_WRITE]);
 
 	return __blkg_prfill_u64(sf, pd, sum >> 9);
 }
diff --git a/block/compat_ioctl.c b/block/compat_ioctl.c
index 556826a..4e7c5fd 100644
--- a/block/compat_ioctl.c
+++ b/block/compat_ioctl.c
@@ -156,7 +156,7 @@ static int compat_cdrom_generic_command(struct block_device *bdev, fmode_t mode,
 	cgc = compat_alloc_user_space(sizeof(*cgc));
 	cgc32 = compat_ptr(arg);
 
-	if (copy_in_user(&cgc->cmd, &cgc32->cmd, sizeof(cgc->cmd)) ||
+	if (copy_in_user(cgc->cmd, cgc32->cmd, sizeof(cgc->cmd)) ||
 	    get_user(data, &cgc32->buffer) ||
 	    put_user(compat_ptr(data), &cgc->buffer) ||
 	    copy_in_user(&cgc->buflen, &cgc32->buflen,
@@ -341,7 +341,7 @@ static int compat_fd_ioctl(struct block_device *bdev, fmode_t mode,
 		err |= __get_user(f->spec1, &uf->spec1);
 		err |= __get_user(f->fmt_gap, &uf->fmt_gap);
 		err |= __get_user(name, &uf->name);
-		f->name = compat_ptr(name);
+		f->name = (void __force_kernel *)compat_ptr(name);
 		if (err) {
 			err = -EFAULT;
 			goto out;
diff --git a/block/genhd.c b/block/genhd.c
index 9f42526..fcc8648 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -471,21 +471,24 @@ static char *bdevt_str(dev_t devt, char *buf)
 
 /*
  * Register device numbers dev..(dev+range-1)
- * range must be nonzero
+ * Noop if @range is zero.
  * The hash chain is sorted on range, so that subranges can override.
  */
 void blk_register_region(dev_t devt, unsigned long range, struct module *module,
 			 struct kobject *(*probe)(dev_t, int *, void *),
 			 int (*lock)(dev_t, void *), void *data)
 {
-	kobj_map(bdev_map, devt, range, module, probe, lock, data);
+	if (range)
+		kobj_map(bdev_map, devt, range, module, probe, lock, data);
 }
 
 EXPORT_SYMBOL(blk_register_region);
 
+/* undo blk_register_region(), noop if @range is zero */
 void blk_unregister_region(dev_t devt, unsigned long range)
 {
-	kobj_unmap(bdev_map, devt, range);
+	if (range)
+		kobj_unmap(bdev_map, devt, range);
 }
 
 EXPORT_SYMBOL(blk_unregister_region);
diff --git a/block/partitions/efi.c b/block/partitions/efi.c
index 26cb624..a49c3a5 100644
--- a/block/partitions/efi.c
+++ b/block/partitions/efi.c
@@ -293,14 +293,14 @@ static gpt_entry *alloc_read_gpt_entries(struct parsed_partitions *state,
 	if (!gpt)
 		return NULL;
 
+	if (!le32_to_cpu(gpt->num_partition_entries))
+		return NULL;
+	pte = kcalloc(le32_to_cpu(gpt->num_partition_entries), le32_to_cpu(gpt->sizeof_partition_entry), GFP_KERNEL);
+	if (!pte)
+		return NULL;
+
 	count = le32_to_cpu(gpt->num_partition_entries) *
                 le32_to_cpu(gpt->sizeof_partition_entry);
-	if (!count)
-		return NULL;
-	pte = kmalloc(count, GFP_KERNEL);
-	if (!pte)
-		return NULL;
-
 	if (read_lba(state, le64_to_cpu(gpt->partition_entry_lba),
 			(u8 *) pte, count) < count) {
 		kfree(pte);
diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
index 0774799..7afc734 100644
--- a/block/scsi_ioctl.c
+++ b/block/scsi_ioctl.c
@@ -67,7 +67,7 @@ static int scsi_get_bus(struct request_queue *q, int __user *p)
 	return put_user(0, p);
 }
 
-static int sg_get_timeout(struct request_queue *q)
+static int __intentional_overflow(-1) sg_get_timeout(struct request_queue *q)
 {
 	return jiffies_to_clock_t(q->sg_timeout);
 }
@@ -227,8 +227,20 @@ EXPORT_SYMBOL(blk_verify_command);
 static int blk_fill_sghdr_rq(struct request_queue *q, struct request *rq,
 			     struct sg_io_hdr *hdr, fmode_t mode)
 {
-	if (copy_from_user(rq->cmd, hdr->cmdp, hdr->cmd_len))
+	unsigned char tmpcmd[sizeof(rq->__cmd)];
+	unsigned char *cmdptr;
+
+	if (rq->cmd != rq->__cmd)
+		cmdptr = rq->cmd;
+	else
+		cmdptr = tmpcmd;
+
+	if (copy_from_user(cmdptr, hdr->cmdp, hdr->cmd_len))
 		return -EFAULT;
+
+	if (cmdptr != rq->cmd)
+		memcpy(rq->cmd, cmdptr, hdr->cmd_len);
+
 	if (blk_verify_command(rq->cmd, mode & FMODE_WRITE))
 		return -EPERM;
 
@@ -420,6 +432,8 @@ int sg_scsi_ioctl(struct request_queue *q, struct gendisk *disk, fmode_t mode,
 	int err;
 	unsigned int in_len, out_len, bytes, opcode, cmdlen;
 	char *buffer = NULL, sense[SCSI_SENSE_BUFFERSIZE];
+	unsigned char tmpcmd[sizeof(rq->__cmd)];
+	unsigned char *cmdptr;
 
 	if (!sic)
 		return -EINVAL;
@@ -458,9 +472,18 @@ int sg_scsi_ioctl(struct request_queue *q, struct gendisk *disk, fmode_t mode,
 	 */
 	err = -EFAULT;
 	rq->cmd_len = cmdlen;
-	if (copy_from_user(rq->cmd, sic->data, cmdlen))
+
+	if (rq->cmd != rq->__cmd)
+		cmdptr = rq->cmd;
+	else
+		cmdptr = tmpcmd;
+
+	if (copy_from_user(cmdptr, sic->data, cmdlen))
 		goto error;
 
+	if (rq->cmd != cmdptr)
+		memcpy(rq->cmd, cmdptr, cmdlen);
+
 	if (in_len && copy_from_user(buffer, sic->data + cmdlen, in_len))
 		goto error;
 
diff --git a/crypto/cast6_generic.c b/crypto/cast6_generic.c
index 058c8d7..55229dd 100644
--- a/crypto/cast6_generic.c
+++ b/crypto/cast6_generic.c
@@ -181,8 +181,9 @@ static inline void QBAR(u32 *block, u8 *Kr, u32 *Km)
 	block[2] ^= F1(block[3], Kr[0], Km[0]);
 }
 
-void __cast6_encrypt(struct cast6_ctx *c, u8 *outbuf, const u8 *inbuf)
+void __cast6_encrypt(void *_c, u8 *outbuf, const u8 *inbuf)
 {
+	struct cast6_ctx *c = _c;
 	const __be32 *src = (const __be32 *)inbuf;
 	__be32 *dst = (__be32 *)outbuf;
 	u32 block[4];
@@ -219,8 +220,9 @@ static void cast6_encrypt(struct crypto_tfm *tfm, u8 *outbuf, const u8 *inbuf)
 	__cast6_encrypt(crypto_tfm_ctx(tfm), outbuf, inbuf);
 }
 
-void __cast6_decrypt(struct cast6_ctx *c, u8 *outbuf, const u8 *inbuf)
+void __cast6_decrypt(void *_c, u8 *outbuf, const u8 *inbuf)
 {
+	struct cast6_ctx *c = _c;
 	const __be32 *src = (const __be32 *)inbuf;
 	__be32 *dst = (__be32 *)outbuf;
 	u32 block[4];
diff --git a/crypto/cryptd.c b/crypto/cryptd.c
index 7921251..ba86330 100644
--- a/crypto/cryptd.c
+++ b/crypto/cryptd.c
@@ -63,7 +63,7 @@ struct cryptd_blkcipher_ctx {
 
 struct cryptd_blkcipher_request_ctx {
 	crypto_completion_t complete;
-};
+} __no_const;
 
 struct cryptd_hash_ctx {
 	struct crypto_shash *child;
@@ -80,7 +80,7 @@ struct cryptd_aead_ctx {
 
 struct cryptd_aead_request_ctx {
 	crypto_completion_t complete;
-};
+} __no_const;
 
 static void cryptd_queue_worker(struct work_struct *work);
 
diff --git a/crypto/crypto_user.c b/crypto/crypto_user.c
index 43fe85f..215a174 100644
--- a/crypto/crypto_user.c
+++ b/crypto/crypto_user.c
@@ -504,7 +504,7 @@ static int crypto_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 			dump_alloc += CRYPTO_REPORT_MAXSIZE;
 
 		{
-			struct netlink_dump_control c = {
+			netlink_dump_control_no_const c = {
 				.dump = link->dump,
 				.done = link->done,
 				.min_dump_alloc = dump_alloc,
diff --git a/crypto/pcrypt.c b/crypto/pcrypt.c
index ee9cfb9..30b36ed 100644
--- a/crypto/pcrypt.c
+++ b/crypto/pcrypt.c
@@ -392,7 +392,7 @@ static int pcrypt_sysfs_add(struct padata_instance *pinst, const char *name)
 	int ret;
 
 	pinst->kobj.kset = pcrypt_kset;
-	ret = kobject_add(&pinst->kobj, NULL, name);
+	ret = kobject_add(&pinst->kobj, NULL, "%s", name);
 	if (!ret)
 		kobject_uevent(&pinst->kobj, KOBJ_ADD);
 
diff --git a/crypto/salsa20_generic.c b/crypto/salsa20_generic.c
index f550b5d..8488beb 100644
--- a/crypto/salsa20_generic.c
+++ b/crypto/salsa20_generic.c
@@ -104,7 +104,7 @@ static void salsa20_wordtobyte(u8 output[64], const u32 input[16])
 static const char sigma[16] = "expand 32-byte k";
 static const char tau[16] = "expand 16-byte k";
 
-static void salsa20_keysetup(struct salsa20_ctx *ctx, const u8 *k, u32 kbytes)
+static void __salsa20_keysetup(struct salsa20_ctx *ctx, const u8 *k, u32 kbytes)
 {
 	const char *constants;
 
@@ -128,7 +128,7 @@ static void salsa20_keysetup(struct salsa20_ctx *ctx, const u8 *k, u32 kbytes)
 	ctx->input[15] = U8TO32_LITTLE(constants + 12);
 }
 
-static void salsa20_ivsetup(struct salsa20_ctx *ctx, const u8 *iv)
+static void __salsa20_ivsetup(struct salsa20_ctx *ctx, const u8 *iv)
 {
 	ctx->input[6] = U8TO32_LITTLE(iv + 0);
 	ctx->input[7] = U8TO32_LITTLE(iv + 4);
@@ -136,7 +136,7 @@ static void salsa20_ivsetup(struct salsa20_ctx *ctx, const u8 *iv)
 	ctx->input[9] = 0;
 }
 
-static void salsa20_encrypt_bytes(struct salsa20_ctx *ctx, u8 *dst,
+static void __salsa20_encrypt_bytes(struct salsa20_ctx *ctx, u8 *dst,
 				  const u8 *src, unsigned int bytes)
 {
 	u8 buf[64];
@@ -170,7 +170,7 @@ static int setkey(struct crypto_tfm *tfm, const u8 *key,
 		  unsigned int keysize)
 {
 	struct salsa20_ctx *ctx = crypto_tfm_ctx(tfm);
-	salsa20_keysetup(ctx, key, keysize);
+	__salsa20_keysetup(ctx, key, keysize);
 	return 0;
 }
 
@@ -186,24 +186,24 @@ static int encrypt(struct blkcipher_desc *desc,
 	blkcipher_walk_init(&walk, dst, src, nbytes);
 	err = blkcipher_walk_virt_block(desc, &walk, 64);
 
-	salsa20_ivsetup(ctx, walk.iv);
+	__salsa20_ivsetup(ctx, walk.iv);
 
 	if (likely(walk.nbytes == nbytes))
 	{
-		salsa20_encrypt_bytes(ctx, walk.dst.virt.addr,
+		__salsa20_encrypt_bytes(ctx, walk.dst.virt.addr,
 				      walk.src.virt.addr, nbytes);
 		return blkcipher_walk_done(desc, &walk, 0);
 	}
 
 	while (walk.nbytes >= 64) {
-		salsa20_encrypt_bytes(ctx, walk.dst.virt.addr,
+		__salsa20_encrypt_bytes(ctx, walk.dst.virt.addr,
 				      walk.src.virt.addr,
 				      walk.nbytes - (walk.nbytes % 64));
 		err = blkcipher_walk_done(desc, &walk, walk.nbytes % 64);
 	}
 
 	if (walk.nbytes) {
-		salsa20_encrypt_bytes(ctx, walk.dst.virt.addr,
+		__salsa20_encrypt_bytes(ctx, walk.dst.virt.addr,
 				      walk.src.virt.addr, walk.nbytes);
 		err = blkcipher_walk_done(desc, &walk, 0);
 	}
diff --git a/crypto/scatterwalk.c b/crypto/scatterwalk.c
index ea5815c..5880da6 100644
--- a/crypto/scatterwalk.c
+++ b/crypto/scatterwalk.c
@@ -109,14 +109,20 @@ void scatterwalk_map_and_copy(void *buf, struct scatterlist *sg,
 {
 	struct scatter_walk walk;
 	struct scatterlist tmp[2];
+	void *realbuf = buf;
 
 	if (!nbytes)
 		return;
 
 	sg = scatterwalk_ffwd(tmp, sg, start);
 
-	if (sg_page(sg) == virt_to_page(buf) &&
-	    sg->offset == offset_in_page(buf))
+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
+	if (object_starts_on_stack(buf))
+		realbuf = buf - current->stack + current->lowmem_stack;
+#endif
+
+	if (sg_page(sg) == virt_to_page(realbuf) &&
+	    sg->offset == offset_in_page(realbuf))
 		return;
 
 	scatterwalk_start(&walk, sg);
diff --git a/crypto/serpent_generic.c b/crypto/serpent_generic.c
index 94970a7..f0c8d26 100644
--- a/crypto/serpent_generic.c
+++ b/crypto/serpent_generic.c
@@ -442,8 +442,9 @@ int serpent_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen)
 }
 EXPORT_SYMBOL_GPL(serpent_setkey);
 
-void __serpent_encrypt(struct serpent_ctx *ctx, u8 *dst, const u8 *src)
+void __serpent_encrypt(void *_ctx, u8 *dst, const u8 *src)
 {
+	struct serpent_ctx *ctx = _ctx;
 	const u32 *k = ctx->expkey;
 	const __le32 *s = (const __le32 *)src;
 	__le32	*d = (__le32 *)dst;
@@ -507,8 +508,9 @@ static void serpent_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
 	__serpent_encrypt(ctx, dst, src);
 }
 
-void __serpent_decrypt(struct serpent_ctx *ctx, u8 *dst, const u8 *src)
+void __serpent_decrypt(void *_ctx, u8 *dst, const u8 *src)
 {
+	struct serpent_ctx *ctx = _ctx;
 	const u32 *k = ctx->expkey;
 	const __le32 *s = (const __le32 *)src;
 	__le32	*d = (__le32 *)dst;
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index f71b756..b96847c 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -70,7 +70,7 @@ static SIMPLE_DEV_PM_OPS(acpi_ac_pm, NULL, acpi_ac_resume);
 
 #ifdef CONFIG_ACPI_PROCFS_POWER
 extern struct proc_dir_entry *acpi_lock_ac_dir(void);
-extern void *acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir);
+extern void acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir);
 static int acpi_ac_open_fs(struct inode *inode, struct file *file);
 #endif
 
diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c
index 4361bc9..5d5306e 100644
--- a/drivers/acpi/acpi_video.c
+++ b/drivers/acpi/acpi_video.c
@@ -419,7 +419,7 @@ static int video_set_report_key_events(const struct dmi_system_id *id)
 	return 0;
 }
 
-static struct dmi_system_id video_dmi_table[] = {
+static const struct dmi_system_id video_dmi_table[] = {
 	/*
 	 * Broken _BQC workaround http://bugzilla.kernel.org/show_bug.cgi?id=13121
 	 */
diff --git a/drivers/acpi/acpica/hwxfsleep.c b/drivers/acpi/acpica/hwxfsleep.c
index f76e0ea..4b83315 100644
--- a/drivers/acpi/acpica/hwxfsleep.c
+++ b/drivers/acpi/acpica/hwxfsleep.c
@@ -70,11 +70,12 @@ static acpi_status acpi_hw_sleep_dispatch(u8 sleep_state, u32 function_id);
 /* Legacy functions are optional, based upon ACPI_REDUCED_HARDWARE */
 
 static struct acpi_sleep_functions acpi_sleep_dispatch[] = {
-	{ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_sleep),
-	 acpi_hw_extended_sleep},
-	{ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake_prep),
-	 acpi_hw_extended_wake_prep},
-	{ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake), acpi_hw_extended_wake}
+	{.legacy_function = ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_sleep),
+	 .extended_function = acpi_hw_extended_sleep},
+	{.legacy_function = ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake_prep),
+	 .extended_function = acpi_hw_extended_wake_prep},
+	{.legacy_function = ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake),
+	 .extended_function = acpi_hw_extended_wake}
 };
 
 /*
diff --git a/drivers/acpi/apei/apei-internal.h b/drivers/acpi/apei/apei-internal.h
index 16129c7..8b675cd 100644
--- a/drivers/acpi/apei/apei-internal.h
+++ b/drivers/acpi/apei/apei-internal.h
@@ -19,7 +19,7 @@ typedef int (*apei_exec_ins_func_t)(struct apei_exec_context *ctx,
 struct apei_exec_ins_type {
 	u32 flags;
 	apei_exec_ins_func_t run;
-};
+} __do_const;
 
 struct apei_exec_context {
 	u32 ip;
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index 60746ef..02a1ddc 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -483,7 +483,7 @@ static void __ghes_print_estatus(const char *pfx,
 				 const struct acpi_hest_generic *generic,
 				 const struct acpi_hest_generic_status *estatus)
 {
-	static atomic_t seqno;
+	static atomic_unchecked_t seqno;
 	unsigned int curr_seqno;
 	char pfx_seq[64];
 
@@ -494,7 +494,7 @@ static void __ghes_print_estatus(const char *pfx,
 		else
 			pfx = KERN_ERR;
 	}
-	curr_seqno = atomic_inc_return(&seqno);
+	curr_seqno = atomic_inc_return_unchecked(&seqno);
 	snprintf(pfx_seq, sizeof(pfx_seq), "%s{%u}" HW_ERR, pfx, curr_seqno);
 	printk("%s""Hardware error from APEI Generic Hardware Error Source: %d\n",
 	       pfx_seq, generic->header.source_id);
@@ -544,7 +544,7 @@ static int ghes_estatus_cached(struct acpi_hest_generic_status *estatus)
 		cache_estatus = GHES_ESTATUS_FROM_CACHE(cache);
 		if (memcmp(estatus, cache_estatus, len))
 			continue;
-		atomic_inc(&cache->count);
+		atomic_inc_unchecked(&cache->count);
 		now = sched_clock();
 		if (now - cache->time_in < GHES_ESTATUS_IN_CACHE_MAX_NSEC)
 			cached = 1;
@@ -578,7 +578,7 @@ static struct ghes_estatus_cache *ghes_estatus_cache_alloc(
 	cache_estatus = GHES_ESTATUS_FROM_CACHE(cache);
 	memcpy(cache_estatus, estatus, len);
 	cache->estatus_len = len;
-	atomic_set(&cache->count, 0);
+	atomic_set_unchecked(&cache->count, 0);
 	cache->generic = generic;
 	cache->time_in = sched_clock();
 	return cache;
@@ -628,7 +628,7 @@ static void ghes_estatus_cache_add(
 			slot_cache = cache;
 			break;
 		}
-		count = atomic_read(&cache->count);
+		count = atomic_read_unchecked(&cache->count);
 		period = duration;
 		do_div(period, (count + 1));
 		if (period > max_period) {
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index b719ab3..371e2a6 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -75,7 +75,7 @@ MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
 
 #ifdef CONFIG_ACPI_PROCFS_POWER
 extern struct proc_dir_entry *acpi_lock_battery_dir(void);
-extern void *acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
+extern void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
 
 enum acpi_battery_files {
 	info_tag = 0,
diff --git a/drivers/acpi/bgrt.c b/drivers/acpi/bgrt.c
index 75f128e..72b03af 100644
--- a/drivers/acpi/bgrt.c
+++ b/drivers/acpi/bgrt.c
@@ -87,8 +87,10 @@ static int __init bgrt_init(void)
 	if (!bgrt_image)
 		return -ENODEV;
 
-	bin_attr_image.private = bgrt_image;
-	bin_attr_image.size = bgrt_image_size;
+	pax_open_kernel();
+	const_cast(bin_attr_image.private) = bgrt_image;
+	const_cast(bin_attr_image.size) = bgrt_image_size;
+	pax_close_kernel();
 
 	bgrt_kobj = kobject_create_and_add("bgrt", acpi_kobj);
 	if (!bgrt_kobj)
diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index 96809cd..6a49f979 100644
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -47,7 +47,7 @@ struct acpi_blacklist_item {
 	u32 is_critical_error;
 };
 
-static struct dmi_system_id acpi_osi_dmi_table[] __initdata;
+static const struct dmi_system_id acpi_osi_dmi_table[] __initconst;
 
 /*
  * POLICY: If *anything* doesn't work, put it on the blacklist.
@@ -168,7 +168,7 @@ static int __init dmi_enable_rev_override(const struct dmi_system_id *d)
 }
 #endif
 
-static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
+static const struct dmi_system_id acpi_osi_dmi_table[] __initconst = {
 	{
 	.callback = dmi_disable_osi_vista,
 	.ident = "Fujitsu Siemens",
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index c068c82..7611bc1 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -63,7 +63,7 @@ static int set_copy_dsdt(const struct dmi_system_id *id)
 }
 #endif
 
-static struct dmi_system_id dsdt_dmi_table[] __initdata = {
+static const struct dmi_system_id dsdt_dmi_table[] __initconst = {
 	/*
 	 * Invoke DSDT corruption work-around on all Toshiba Satellite.
 	 * https://bugzilla.kernel.org/show_bug.cgi?id=14679
@@ -79,7 +79,7 @@ static struct dmi_system_id dsdt_dmi_table[] __initdata = {
 	{}
 };
 #else
-static struct dmi_system_id dsdt_dmi_table[] __initdata = {
+static const struct dmi_system_id dsdt_dmi_table[] __initconst = {
 	{}
 };
 #endif
diff --git a/drivers/acpi/custom_method.c b/drivers/acpi/custom_method.c
index c68e724..e863008 100644
--- a/drivers/acpi/custom_method.c
+++ b/drivers/acpi/custom_method.c
@@ -29,6 +29,10 @@ static ssize_t cm_write(struct file *file, const char __user * user_buf,
 	struct acpi_table_header table;
 	acpi_status status;
 
+#ifdef CONFIG_GRKERNSEC_KMEM
+	return -EPERM;
+#endif
+
 	if (!(*ppos)) {
 		/* parse the table header to get the table length */
 		if (count <= sizeof(struct acpi_table_header))
diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index 993fd31..cc15d14 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -1026,6 +1026,8 @@ EXPORT_SYMBOL_GPL(acpi_subsys_freeze);
 
 #endif /* CONFIG_PM_SLEEP */
 
+static void acpi_dev_pm_detach(struct device *dev, bool power_off);
+
 static struct dev_pm_domain acpi_general_pm_domain = {
 	.ops = {
 		.runtime_suspend = acpi_subsys_runtime_suspend,
@@ -1042,6 +1044,7 @@ static struct dev_pm_domain acpi_general_pm_domain = {
 		.restore_early = acpi_subsys_resume_early,
 #endif
 	},
+	.detach = acpi_dev_pm_detach
 };
 
 /**
@@ -1119,7 +1122,6 @@ int acpi_dev_pm_attach(struct device *dev, bool power_on)
 		acpi_device_wakeup(adev, ACPI_STATE_S0, false);
 	}
 
-	dev->pm_domain->detach = acpi_dev_pm_detach;
 	return 0;
 }
 EXPORT_SYMBOL_GPL(acpi_dev_pm_attach);
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index b420fb4..b66c430 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -1503,7 +1503,7 @@ static int ec_clear_on_resume(const struct dmi_system_id *id)
 	return 0;
 }
 
-static struct dmi_system_id ec_dmi_table[] __initdata = {
+static const struct dmi_system_id ec_dmi_table[] __initconst = {
 	{
 	ec_skip_dsdt_scan, "Compal JFL92", {
 	DMI_MATCH(DMI_BIOS_VENDOR, "COMPAL"),
@@ -1610,7 +1610,7 @@ error:
 	return -ENODEV;
 }
 
-static int param_set_event_clearing(const char *val, struct kernel_param *kp)
+static int param_set_event_clearing(const char *val, const struct kernel_param *kp)
 {
 	int result = 0;
 
@@ -1628,7 +1628,7 @@ static int param_set_event_clearing(const char *val, struct kernel_param *kp)
 	return result;
 }
 
-static int param_get_event_clearing(char *buffer, struct kernel_param *kp)
+static int param_get_event_clearing(char *buffer, const struct kernel_param *kp)
 {
 	switch (ec_event_clearing) {
 	case ACPI_EC_EVT_TIMING_STATUS:
diff --git a/drivers/acpi/pci_slot.c b/drivers/acpi/pci_slot.c
index 7188e53..6012bc4 100644
--- a/drivers/acpi/pci_slot.c
+++ b/drivers/acpi/pci_slot.c
@@ -191,7 +191,7 @@ static int do_sta_before_sun(const struct dmi_system_id *d)
 	return 0;
 }
 
-static struct dmi_system_id acpi_pci_slot_dmi_table[] __initdata = {
+static const struct dmi_system_id acpi_pci_slot_dmi_table[] __initconst = {
 	/*
 	 * Fujitsu Primequest machines will return 1023 to indicate an
 	 * error if the _SUN method is evaluated on SxFy objects that
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 444e374..eb738f2 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -866,7 +866,7 @@ static int acpi_processor_setup_cpuidle_states(struct acpi_processor *pr)
 {
 	int i, count = CPUIDLE_DRIVER_STATE_START;
 	struct acpi_processor_cx *cx;
-	struct cpuidle_state *state;
+	cpuidle_state_no_const *state;
 	struct cpuidle_driver *drv = &acpi_idle_driver;
 
 	if (!pr->flags.power_setup_done)
diff --git a/drivers/acpi/processor_pdc.c b/drivers/acpi/processor_pdc.c
index 7cfbda4..74f738c 100644
--- a/drivers/acpi/processor_pdc.c
+++ b/drivers/acpi/processor_pdc.c
@@ -173,7 +173,7 @@ static int __init set_no_mwait(const struct dmi_system_id *id)
 	return 0;
 }
 
-static struct dmi_system_id processor_idle_dmi_table[] __initdata = {
+static const struct dmi_system_id processor_idle_dmi_table[] __initconst = {
 	{
 	set_no_mwait, "Extensa 5220", {
 	DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 2a8b596..90a329e 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -149,7 +149,7 @@ static int __init init_nvs_nosave(const struct dmi_system_id *d)
 	return 0;
 }
 
-static struct dmi_system_id acpisleep_dmi_table[] __initdata = {
+static const struct dmi_system_id acpisleep_dmi_table[] __initconst = {
 	{
 	.callback = init_old_suspend_ordering,
 	.ident = "Abit KN9 (nForce4 variant)",
diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
index 0243d37..dcf52db 100644
--- a/drivers/acpi/sysfs.c
+++ b/drivers/acpi/sysfs.c
@@ -227,7 +227,7 @@ module_param_cb(trace_method_name, &param_ops_trace_method, &trace_method_name,
 module_param_cb(trace_debug_layer, &param_ops_trace_attrib, &acpi_gbl_trace_dbg_layer, 0644);
 module_param_cb(trace_debug_level, &param_ops_trace_attrib, &acpi_gbl_trace_dbg_level, 0644);
 
-static int param_set_trace_state(const char *val, struct kernel_param *kp)
+static int param_set_trace_state(const char *val, const struct kernel_param *kp)
 {
 	acpi_status status;
 	const char *method = trace_method_name;
@@ -263,7 +263,7 @@ static int param_set_trace_state(const char *val, struct kernel_param *kp)
 	return 0;
 }
 
-static int param_get_trace_state(char *buffer, struct kernel_param *kp)
+static int param_get_trace_state(char *buffer, const struct kernel_param *kp)
 {
 	if (!(acpi_gbl_trace_flags & ACPI_TRACE_ENABLED))
 		return sprintf(buffer, "disable");
@@ -292,7 +292,7 @@ MODULE_PARM_DESC(aml_debug_output,
 		 "To enable/disable the ACPI Debug Object output.");
 
 /* /sys/module/acpi/parameters/acpica_version */
-static int param_get_acpica_version(char *buffer, struct kernel_param *kp)
+static int param_get_acpica_version(char *buffer, const struct kernel_param *kp)
 {
 	int result;
 
@@ -486,11 +486,11 @@ static u32 num_counters;
 static struct attribute **all_attrs;
 static u32 acpi_gpe_count;
 
-static struct attribute_group interrupt_stats_attr_group = {
+static attribute_group_no_const interrupt_stats_attr_group = {
 	.name = "interrupts",
 };
 
-static struct kobj_attribute *counter_attrs;
+static kobj_attribute_no_const *counter_attrs;
 
 static void delete_gpe_attr_array(void)
 {
@@ -777,13 +777,13 @@ static void __exit interrupt_stats_exit(void)
 }
 
 static ssize_t
-acpi_show_profile(struct device *dev, struct device_attribute *attr,
+acpi_show_profile(struct kobject *kobj, struct kobj_attribute *attr,
 		  char *buf)
 {
 	return sprintf(buf, "%d\n", acpi_gbl_FADT.preferred_profile);
 }
 
-static const struct device_attribute pm_profile_attr =
+static const struct kobj_attribute pm_profile_attr =
 	__ATTR(pm_profile, S_IRUGO, acpi_show_profile, NULL);
 
 static ssize_t hotplug_enabled_show(struct kobject *kobj,
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 82707f9..a6b19f5 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -1208,7 +1208,7 @@ static int thermal_psv(const struct dmi_system_id *d) {
 	return 0;
 }
 
-static struct dmi_system_id thermal_dmi_table[] __initdata = {
+static const struct dmi_system_id thermal_dmi_table[] __initconst = {
 	/*
 	 * Award BIOS on this AOpen makes thermal control almost worthless.
 	 * http://bugzilla.kernel.org/show_bug.cgi?id=8842
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 1316ddd..0f10a1d 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -41,7 +41,6 @@ ACPI_MODULE_NAME("video");
 void acpi_video_unregister_backlight(void);
 
 static bool backlight_notifier_registered;
-static struct notifier_block backlight_nb;
 static struct work_struct backlight_notify_work;
 
 static enum acpi_backlight_type acpi_backlight_cmdline = acpi_backlight_undef;
@@ -311,6 +310,10 @@ static int acpi_video_backlight_notify(struct notifier_block *nb,
 	return NOTIFY_OK;
 }
 
+static struct notifier_block backlight_nb = {
+	.notifier_call = acpi_video_backlight_notify,
+};
+
 /*
  * Determine which type of backlight interface to use on this system,
  * First check cmdline, then dmi quirks, then do autodetect.
@@ -341,8 +344,6 @@ enum acpi_backlight_type acpi_video_get_backlight_type(void)
 				    &video_caps, NULL);
 		INIT_WORK(&backlight_notify_work,
 			  acpi_video_backlight_notify_work);
-		backlight_nb.notifier_call = acpi_video_backlight_notify;
-		backlight_nb.priority = 0;
 		if (backlight_register_notifier(&backlight_nb) == 0)
 			backlight_notifier_registered = true;
 		init_done = true;
diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index 16288e7..91ab5f3 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -120,7 +120,7 @@ static DECLARE_WAIT_QUEUE_HEAD(binder_user_error_wait);
 static int binder_stop_on_user_error;
 
 static int binder_set_stop_on_user_error(const char *val,
-					 struct kernel_param *kp)
+					 const struct kernel_param *kp)
 {
 	int ret;
 
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 55e257c..554c697 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -103,7 +103,7 @@ static unsigned int ata_dev_set_xfermode(struct ata_device *dev);
 static void ata_dev_xfermask(struct ata_device *dev);
 static unsigned long ata_dev_blacklisted(const struct ata_device *dev);
 
-atomic_t ata_print_id = ATOMIC_INIT(0);
+atomic_unchecked_t ata_print_id = ATOMIC_INIT(0);
 
 struct ata_force_param {
 	const char	*name;
@@ -4804,7 +4804,7 @@ void ata_qc_free(struct ata_queued_cmd *qc)
 	struct ata_port *ap;
 	unsigned int tag;
 
-	WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
+	BUG_ON(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
 	ap = qc->ap;
 
 	qc->flags = 0;
@@ -4821,7 +4821,7 @@ void __ata_qc_complete(struct ata_queued_cmd *qc)
 	struct ata_port *ap;
 	struct ata_link *link;
 
-	WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
+	BUG_ON(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
 	WARN_ON_ONCE(!(qc->flags & ATA_QCFLAG_ACTIVE));
 	ap = qc->ap;
 	link = qc->dev->link;
@@ -5928,6 +5928,7 @@ static void ata_finalize_port_ops(struct ata_port_operations *ops)
 		return;
 
 	spin_lock(&lock);
+	pax_open_kernel();
 
 	for (cur = ops->inherits; cur; cur = cur->inherits) {
 		void **inherit = (void **)cur;
@@ -5941,8 +5942,9 @@ static void ata_finalize_port_ops(struct ata_port_operations *ops)
 		if (IS_ERR(*pp))
 			*pp = NULL;
 
-	ops->inherits = NULL;
+	const_cast(ops->inherits) = NULL;
 
+	pax_close_kernel();
 	spin_unlock(&lock);
 }
 
@@ -6138,7 +6140,7 @@ int ata_host_register(struct ata_host *host, struct scsi_host_template *sht)
 
 	/* give ports names and add SCSI hosts */
 	for (i = 0; i < host->n_ports; i++) {
-		host->ports[i]->print_id = atomic_inc_return(&ata_print_id);
+		host->ports[i]->print_id = atomic_inc_return_unchecked(&ata_print_id);
 		host->ports[i]->local_port_no = i + 1;
 	}
 
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 567859c..ffe7c75 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -4196,7 +4196,7 @@ int ata_sas_port_init(struct ata_port *ap)
 
 	if (rc)
 		return rc;
-	ap->print_id = atomic_inc_return(&ata_print_id);
+	ap->print_id = atomic_inc_return_unchecked(&ata_print_id);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(ata_sas_port_init);
diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
index f840ca1..edd6ef3 100644
--- a/drivers/ata/libata.h
+++ b/drivers/ata/libata.h
@@ -53,7 +53,7 @@ enum {
 	ATA_DNXFER_QUIET	= (1 << 31),
 };
 
-extern atomic_t ata_print_id;
+extern atomic_unchecked_t ata_print_id;
 extern int atapi_passthru16;
 extern int libata_fua;
 extern int libata_noacpi;
diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c
index 80fe0f6..d95a192 100644
--- a/drivers/ata/pata_arasan_cf.c
+++ b/drivers/ata/pata_arasan_cf.c
@@ -864,7 +864,9 @@ static int arasan_cf_probe(struct platform_device *pdev)
 	/* Handle platform specific quirks */
 	if (quirk) {
 		if (quirk & CF_BROKEN_PIO) {
-			ap->ops->set_piomode = NULL;
+			pax_open_kernel();
+			const_cast(ap->ops->set_piomode) = NULL;
+			pax_close_kernel();
 			ap->pio_mask = 0;
 		}
 		if (quirk & CF_BROKEN_MWDMA)
diff --git a/drivers/atm/adummy.c b/drivers/atm/adummy.c
index f9b983a..887b9d8 100644
--- a/drivers/atm/adummy.c
+++ b/drivers/atm/adummy.c
@@ -114,7 +114,7 @@ adummy_send(struct atm_vcc *vcc, struct sk_buff *skb)
 		vcc->pop(vcc, skb);
 	else
 		dev_kfree_skb_any(skb);
-	atomic_inc(&vcc->stats->tx);
+	atomic_inc_unchecked(&vcc->stats->tx);
 
 	return 0;
 }
diff --git a/drivers/atm/ambassador.c b/drivers/atm/ambassador.c
index f1a9198..f466a4a 100644
--- a/drivers/atm/ambassador.c
+++ b/drivers/atm/ambassador.c
@@ -454,7 +454,7 @@ static void tx_complete (amb_dev * dev, tx_out * tx) {
   PRINTD (DBG_FLOW|DBG_TX, "tx_complete %p %p", dev, tx);
   
   // VC layer stats
-  atomic_inc(&ATM_SKB(skb)->vcc->stats->tx);
+  atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx);
   
   // free the descriptor
   kfree (tx_descr);
@@ -495,7 +495,7 @@ static void rx_complete (amb_dev * dev, rx_out * rx) {
 	  dump_skb ("<<<", vc, skb);
 	  
 	  // VC layer stats
-	  atomic_inc(&atm_vcc->stats->rx);
+	  atomic_inc_unchecked(&atm_vcc->stats->rx);
 	  __net_timestamp(skb);
 	  // end of our responsibility
 	  atm_vcc->push (atm_vcc, skb);
@@ -510,7 +510,7 @@ static void rx_complete (amb_dev * dev, rx_out * rx) {
       } else {
       	PRINTK (KERN_INFO, "dropped over-size frame");
 	// should we count this?
-	atomic_inc(&atm_vcc->stats->rx_drop);
+	atomic_inc_unchecked(&atm_vcc->stats->rx_drop);
       }
       
     } else {
@@ -1338,7 +1338,7 @@ static int amb_send (struct atm_vcc * atm_vcc, struct sk_buff * skb) {
   }
   
   if (check_area (skb->data, skb->len)) {
-    atomic_inc(&atm_vcc->stats->tx_err);
+    atomic_inc_unchecked(&atm_vcc->stats->tx_err);
     return -ENOMEM; // ?
   }
   
diff --git a/drivers/atm/atmtcp.c b/drivers/atm/atmtcp.c
index 480fa6f..947067c 100644
--- a/drivers/atm/atmtcp.c
+++ b/drivers/atm/atmtcp.c
@@ -206,7 +206,7 @@ static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb)
 		if (vcc->pop) vcc->pop(vcc,skb);
 		else dev_kfree_skb(skb);
 		if (dev_data) return 0;
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		return -ENOLINK;
 	}
 	size = skb->len+sizeof(struct atmtcp_hdr);
@@ -214,7 +214,7 @@ static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb)
 	if (!new_skb) {
 		if (vcc->pop) vcc->pop(vcc,skb);
 		else dev_kfree_skb(skb);
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		return -ENOBUFS;
 	}
 	hdr = (void *) skb_put(new_skb,sizeof(struct atmtcp_hdr));
@@ -225,8 +225,8 @@ static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb)
 	if (vcc->pop) vcc->pop(vcc,skb);
 	else dev_kfree_skb(skb);
 	out_vcc->push(out_vcc,new_skb);
-	atomic_inc(&vcc->stats->tx);
-	atomic_inc(&out_vcc->stats->rx);
+	atomic_inc_unchecked(&vcc->stats->tx);
+	atomic_inc_unchecked(&out_vcc->stats->rx);
 	return 0;
 }
 
@@ -300,7 +300,7 @@ static int atmtcp_c_send(struct atm_vcc *vcc,struct sk_buff *skb)
 	read_unlock(&vcc_sklist_lock);
 	if (!out_vcc) {
 		result = -EUNATCH;
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		goto done;
 	}
 	skb_pull(skb,sizeof(struct atmtcp_hdr));
@@ -312,8 +312,8 @@ static int atmtcp_c_send(struct atm_vcc *vcc,struct sk_buff *skb)
 	__net_timestamp(new_skb);
 	skb_copy_from_linear_data(skb, skb_put(new_skb, skb->len), skb->len);
 	out_vcc->push(out_vcc,new_skb);
-	atomic_inc(&vcc->stats->tx);
-	atomic_inc(&out_vcc->stats->rx);
+	atomic_inc_unchecked(&vcc->stats->tx);
+	atomic_inc_unchecked(&out_vcc->stats->rx);
 done:
 	if (vcc->pop) vcc->pop(vcc,skb);
 	else dev_kfree_skb(skb);
diff --git a/drivers/atm/eni.c b/drivers/atm/eni.c
index 6339efd..2b441d5 100644
--- a/drivers/atm/eni.c
+++ b/drivers/atm/eni.c
@@ -525,7 +525,7 @@ static int rx_aal0(struct atm_vcc *vcc)
 		DPRINTK(DEV_LABEL "(itf %d): trashing empty cell\n",
 		    vcc->dev->number);
 		length = 0;
-		atomic_inc(&vcc->stats->rx_err);
+		atomic_inc_unchecked(&vcc->stats->rx_err);
 	}
 	else {
 		length = ATM_CELL_SIZE-1; /* no HEC */
@@ -580,7 +580,7 @@ static int rx_aal5(struct atm_vcc *vcc)
 			    size);
 		}
 		eff = length = 0;
-		atomic_inc(&vcc->stats->rx_err);
+		atomic_inc_unchecked(&vcc->stats->rx_err);
 	}
 	else {
 		size = (descr & MID_RED_COUNT)*(ATM_CELL_PAYLOAD >> 2);
@@ -597,7 +597,7 @@ static int rx_aal5(struct atm_vcc *vcc)
 			    "(VCI=%d,length=%ld,size=%ld (descr 0x%lx))\n",
 			    vcc->dev->number,vcc->vci,length,size << 2,descr);
 			length = eff = 0;
-			atomic_inc(&vcc->stats->rx_err);
+			atomic_inc_unchecked(&vcc->stats->rx_err);
 		}
 	}
 	skb = eff ? atm_alloc_charge(vcc,eff << 2,GFP_ATOMIC) : NULL;
@@ -770,7 +770,7 @@ rx_dequeued++;
 			vcc->push(vcc,skb);
 			pushed++;
 		}
-		atomic_inc(&vcc->stats->rx);
+		atomic_inc_unchecked(&vcc->stats->rx);
 	}
 	wake_up(&eni_dev->rx_wait);
 }
@@ -1230,7 +1230,7 @@ static void dequeue_tx(struct atm_dev *dev)
 				 DMA_TO_DEVICE);
 		if (vcc->pop) vcc->pop(vcc,skb);
 		else dev_kfree_skb_irq(skb);
-		atomic_inc(&vcc->stats->tx);
+		atomic_inc_unchecked(&vcc->stats->tx);
 		wake_up(&eni_dev->tx_wait);
 dma_complete++;
 	}
diff --git a/drivers/atm/firestream.c b/drivers/atm/firestream.c
index a969a7e..f5c5cd8 100644
--- a/drivers/atm/firestream.c
+++ b/drivers/atm/firestream.c
@@ -749,7 +749,7 @@ static void process_txdone_queue (struct fs_dev *dev, struct queue *q)
 				}
 			}
 
-			atomic_inc(&ATM_SKB(skb)->vcc->stats->tx);
+			atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx);
 
 			fs_dprintk (FS_DEBUG_TXMEM, "i");
 			fs_dprintk (FS_DEBUG_ALLOC, "Free t-skb: %p\n", skb);
@@ -816,7 +816,7 @@ static void process_incoming (struct fs_dev *dev, struct queue *q)
 #endif
 				skb_put (skb, qe->p1 & 0xffff); 
 				ATM_SKB(skb)->vcc = atm_vcc;
-				atomic_inc(&atm_vcc->stats->rx);
+				atomic_inc_unchecked(&atm_vcc->stats->rx);
 				__net_timestamp(skb);
 				fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p (pushed)\n", skb);
 				atm_vcc->push (atm_vcc, skb);
@@ -837,12 +837,12 @@ static void process_incoming (struct fs_dev *dev, struct queue *q)
 				kfree (pe);
 			}
 			if (atm_vcc)
-				atomic_inc(&atm_vcc->stats->rx_drop);
+				atomic_inc_unchecked(&atm_vcc->stats->rx_drop);
 			break;
 		case 0x1f: /*  Reassembly abort: no buffers. */
 			/* Silently increment error counter. */
 			if (atm_vcc)
-				atomic_inc(&atm_vcc->stats->rx_drop);
+				atomic_inc_unchecked(&atm_vcc->stats->rx_drop);
 			break;
 		default: /* Hmm. Haven't written the code to handle the others yet... -- REW */
 			printk (KERN_WARNING "Don't know what to do with RX status %x: %s.\n", 
diff --git a/drivers/atm/fore200e.c b/drivers/atm/fore200e.c
index 75dde90..4309ead 100644
--- a/drivers/atm/fore200e.c
+++ b/drivers/atm/fore200e.c
@@ -932,9 +932,9 @@ fore200e_tx_irq(struct fore200e* fore200e)
 #endif
 		/* check error condition */
 		if (*entry->status & STATUS_ERROR)
-		    atomic_inc(&vcc->stats->tx_err);
+		    atomic_inc_unchecked(&vcc->stats->tx_err);
 		else
-		    atomic_inc(&vcc->stats->tx);
+		    atomic_inc_unchecked(&vcc->stats->tx);
 	    }
 	}
 
@@ -1083,7 +1083,7 @@ fore200e_push_rpd(struct fore200e* fore200e, struct atm_vcc* vcc, struct rpd* rp
     if (skb == NULL) {
 	DPRINTK(2, "unable to alloc new skb, rx PDU length = %d\n", pdu_len);
 
-	atomic_inc(&vcc->stats->rx_drop);
+	atomic_inc_unchecked(&vcc->stats->rx_drop);
 	return -ENOMEM;
     } 
 
@@ -1126,14 +1126,14 @@ fore200e_push_rpd(struct fore200e* fore200e, struct atm_vcc* vcc, struct rpd* rp
 
 	dev_kfree_skb_any(skb);
 
-	atomic_inc(&vcc->stats->rx_drop);
+	atomic_inc_unchecked(&vcc->stats->rx_drop);
 	return -ENOMEM;
     }
 
     ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0);
 
     vcc->push(vcc, skb);
-    atomic_inc(&vcc->stats->rx);
+    atomic_inc_unchecked(&vcc->stats->rx);
 
     ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0);
 
@@ -1211,7 +1211,7 @@ fore200e_rx_irq(struct fore200e* fore200e)
 		DPRINTK(2, "damaged PDU on %d.%d.%d\n",
 			fore200e->atm_dev->number,
 			entry->rpd->atm_header.vpi, entry->rpd->atm_header.vci);
-		atomic_inc(&vcc->stats->rx_err);
+		atomic_inc_unchecked(&vcc->stats->rx_err);
 	    }
 	}
 
@@ -1656,7 +1656,7 @@ fore200e_send(struct atm_vcc *vcc, struct sk_buff *skb)
 		goto retry_here;
 	    }
 
-	    atomic_inc(&vcc->stats->tx_err);
+	    atomic_inc_unchecked(&vcc->stats->tx_err);
 
 	    fore200e->tx_sat++;
 	    DPRINTK(2, "tx queue of device %s is saturated, PDU dropped - heartbeat is %08x\n",
diff --git a/drivers/atm/he.c b/drivers/atm/he.c
index 0f5cb37..c8bcdef 100644
--- a/drivers/atm/he.c
+++ b/drivers/atm/he.c
@@ -1689,7 +1689,7 @@ he_service_rbrq(struct he_dev *he_dev, int group)
 
 		if (RBRQ_HBUF_ERR(he_dev->rbrq_head)) {
 			hprintk("HBUF_ERR!  (cid 0x%x)\n", cid);
-				atomic_inc(&vcc->stats->rx_drop);
+				atomic_inc_unchecked(&vcc->stats->rx_drop);
 			goto return_host_buffers;
 		}
 
@@ -1716,7 +1716,7 @@ he_service_rbrq(struct he_dev *he_dev, int group)
 				RBRQ_LEN_ERR(he_dev->rbrq_head)
 							? "LEN_ERR" : "",
 							vcc->vpi, vcc->vci);
-			atomic_inc(&vcc->stats->rx_err);
+			atomic_inc_unchecked(&vcc->stats->rx_err);
 			goto return_host_buffers;
 		}
 
@@ -1768,7 +1768,7 @@ he_service_rbrq(struct he_dev *he_dev, int group)
 		vcc->push(vcc, skb);
 		spin_lock(&he_dev->global_lock);
 
-		atomic_inc(&vcc->stats->rx);
+		atomic_inc_unchecked(&vcc->stats->rx);
 
 return_host_buffers:
 		++pdus_assembled;
@@ -2094,7 +2094,7 @@ __enqueue_tpd(struct he_dev *he_dev, struct he_tpd *tpd, unsigned cid)
 					tpd->vcc->pop(tpd->vcc, tpd->skb);
 				else
 					dev_kfree_skb_any(tpd->skb);
-				atomic_inc(&tpd->vcc->stats->tx_err);
+				atomic_inc_unchecked(&tpd->vcc->stats->tx_err);
 			}
 			dma_pool_free(he_dev->tpd_pool, tpd, TPD_ADDR(tpd->status));
 			return;
@@ -2506,7 +2506,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
 			vcc->pop(vcc, skb);
 		else
 			dev_kfree_skb_any(skb);
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		return -EINVAL;
 	}
 
@@ -2517,7 +2517,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
 			vcc->pop(vcc, skb);
 		else
 			dev_kfree_skb_any(skb);
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		return -EINVAL;
 	}
 #endif
@@ -2529,7 +2529,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
 			vcc->pop(vcc, skb);
 		else
 			dev_kfree_skb_any(skb);
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		spin_unlock_irqrestore(&he_dev->global_lock, flags);
 		return -ENOMEM;
 	}
@@ -2571,7 +2571,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
 					vcc->pop(vcc, skb);
 				else
 					dev_kfree_skb_any(skb);
-				atomic_inc(&vcc->stats->tx_err);
+				atomic_inc_unchecked(&vcc->stats->tx_err);
 				spin_unlock_irqrestore(&he_dev->global_lock, flags);
 				return -ENOMEM;
 			}
@@ -2602,7 +2602,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
 	__enqueue_tpd(he_dev, tpd, cid);
 	spin_unlock_irqrestore(&he_dev->global_lock, flags);
 
-	atomic_inc(&vcc->stats->tx);
+	atomic_inc_unchecked(&vcc->stats->tx);
 
 	return 0;
 }
diff --git a/drivers/atm/horizon.c b/drivers/atm/horizon.c
index 527bbd5..96570c8 100644
--- a/drivers/atm/horizon.c
+++ b/drivers/atm/horizon.c
@@ -1018,7 +1018,7 @@ static void rx_schedule (hrz_dev * dev, int irq) {
 	{
 	  struct atm_vcc * vcc = ATM_SKB(skb)->vcc;
 	  // VC layer stats
-	  atomic_inc(&vcc->stats->rx);
+	  atomic_inc_unchecked(&vcc->stats->rx);
 	  __net_timestamp(skb);
 	  // end of our responsibility
 	  vcc->push (vcc, skb);
@@ -1170,7 +1170,7 @@ static void tx_schedule (hrz_dev * const dev, int irq) {
 	dev->tx_iovec = NULL;
 	
 	// VC layer stats
-	atomic_inc(&ATM_SKB(skb)->vcc->stats->tx);
+	atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx);
 	
 	// free the skb
 	hrz_kfree_skb (skb);
diff --git a/drivers/atm/idt77252.c b/drivers/atm/idt77252.c
index 074616b..d6b3d5f 100644
--- a/drivers/atm/idt77252.c
+++ b/drivers/atm/idt77252.c
@@ -811,7 +811,7 @@ drain_scq(struct idt77252_dev *card, struct vc_map *vc)
 		else
 			dev_kfree_skb(skb);
 
-		atomic_inc(&vcc->stats->tx);
+		atomic_inc_unchecked(&vcc->stats->tx);
 	}
 
 	atomic_dec(&scq->used);
@@ -1073,13 +1073,13 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
 			if ((sb = dev_alloc_skb(64)) == NULL) {
 				printk("%s: Can't allocate buffers for aal0.\n",
 				       card->name);
-				atomic_add(i, &vcc->stats->rx_drop);
+				atomic_add_unchecked(i, &vcc->stats->rx_drop);
 				break;
 			}
 			if (!atm_charge(vcc, sb->truesize)) {
 				RXPRINTK("%s: atm_charge() dropped aal0 packets.\n",
 					 card->name);
-				atomic_add(i - 1, &vcc->stats->rx_drop);
+				atomic_add_unchecked(i - 1, &vcc->stats->rx_drop);
 				dev_kfree_skb(sb);
 				break;
 			}
@@ -1096,7 +1096,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
 			ATM_SKB(sb)->vcc = vcc;
 			__net_timestamp(sb);
 			vcc->push(vcc, sb);
-			atomic_inc(&vcc->stats->rx);
+			atomic_inc_unchecked(&vcc->stats->rx);
 
 			cell += ATM_CELL_PAYLOAD;
 		}
@@ -1133,13 +1133,13 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
 			         "(CDC: %08x)\n",
 			         card->name, len, rpp->len, readl(SAR_REG_CDC));
 			recycle_rx_pool_skb(card, rpp);
-			atomic_inc(&vcc->stats->rx_err);
+			atomic_inc_unchecked(&vcc->stats->rx_err);
 			return;
 		}
 		if (stat & SAR_RSQE_CRC) {
 			RXPRINTK("%s: AAL5 CRC error.\n", card->name);
 			recycle_rx_pool_skb(card, rpp);
-			atomic_inc(&vcc->stats->rx_err);
+			atomic_inc_unchecked(&vcc->stats->rx_err);
 			return;
 		}
 		if (skb_queue_len(&rpp->queue) > 1) {
@@ -1150,7 +1150,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
 				RXPRINTK("%s: Can't alloc RX skb.\n",
 					 card->name);
 				recycle_rx_pool_skb(card, rpp);
-				atomic_inc(&vcc->stats->rx_err);
+				atomic_inc_unchecked(&vcc->stats->rx_err);
 				return;
 			}
 			if (!atm_charge(vcc, skb->truesize)) {
@@ -1169,7 +1169,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
 			__net_timestamp(skb);
 
 			vcc->push(vcc, skb);
-			atomic_inc(&vcc->stats->rx);
+			atomic_inc_unchecked(&vcc->stats->rx);
 
 			return;
 		}
@@ -1191,7 +1191,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
 		__net_timestamp(skb);
 
 		vcc->push(vcc, skb);
-		atomic_inc(&vcc->stats->rx);
+		atomic_inc_unchecked(&vcc->stats->rx);
 
 		if (skb->truesize > SAR_FB_SIZE_3)
 			add_rx_skb(card, 3, SAR_FB_SIZE_3, 1);
@@ -1302,14 +1302,14 @@ idt77252_rx_raw(struct idt77252_dev *card)
 		if (vcc->qos.aal != ATM_AAL0) {
 			RPRINTK("%s: raw cell for non AAL0 vc %u.%u\n",
 				card->name, vpi, vci);
-			atomic_inc(&vcc->stats->rx_drop);
+			atomic_inc_unchecked(&vcc->stats->rx_drop);
 			goto drop;
 		}
 	
 		if ((sb = dev_alloc_skb(64)) == NULL) {
 			printk("%s: Can't allocate buffers for AAL0.\n",
 			       card->name);
-			atomic_inc(&vcc->stats->rx_err);
+			atomic_inc_unchecked(&vcc->stats->rx_err);
 			goto drop;
 		}
 
@@ -1328,7 +1328,7 @@ idt77252_rx_raw(struct idt77252_dev *card)
 		ATM_SKB(sb)->vcc = vcc;
 		__net_timestamp(sb);
 		vcc->push(vcc, sb);
-		atomic_inc(&vcc->stats->rx);
+		atomic_inc_unchecked(&vcc->stats->rx);
 
 drop:
 		skb_pull(queue, 64);
@@ -1953,13 +1953,13 @@ idt77252_send_skb(struct atm_vcc *vcc, struct sk_buff *skb, int oam)
 
 	if (vc == NULL) {
 		printk("%s: NULL connection in send().\n", card->name);
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		dev_kfree_skb(skb);
 		return -EINVAL;
 	}
 	if (!test_bit(VCF_TX, &vc->flags)) {
 		printk("%s: Trying to transmit on a non-tx VC.\n", card->name);
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		dev_kfree_skb(skb);
 		return -EINVAL;
 	}
@@ -1971,14 +1971,14 @@ idt77252_send_skb(struct atm_vcc *vcc, struct sk_buff *skb, int oam)
 		break;
 	default:
 		printk("%s: Unsupported AAL: %d\n", card->name, vcc->qos.aal);
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		dev_kfree_skb(skb);
 		return -EINVAL;
 	}
 
 	if (skb_shinfo(skb)->nr_frags != 0) {
 		printk("%s: No scatter-gather yet.\n", card->name);
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		dev_kfree_skb(skb);
 		return -EINVAL;
 	}
@@ -1986,7 +1986,7 @@ idt77252_send_skb(struct atm_vcc *vcc, struct sk_buff *skb, int oam)
 
 	err = queue_skb(card, vc, skb, oam);
 	if (err) {
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		dev_kfree_skb(skb);
 		return err;
 	}
@@ -2009,7 +2009,7 @@ idt77252_send_oam(struct atm_vcc *vcc, void *cell, int flags)
 	skb = dev_alloc_skb(64);
 	if (!skb) {
 		printk("%s: Out of memory in send_oam().\n", card->name);
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		return -ENOMEM;
 	}
 	atomic_add(skb->truesize, &sk_atm(vcc)->sk_wmem_alloc);
diff --git a/drivers/atm/iphase.c b/drivers/atm/iphase.c
index 7d00f29..a9a6c74 100644
--- a/drivers/atm/iphase.c
+++ b/drivers/atm/iphase.c
@@ -1146,7 +1146,7 @@ static int rx_pkt(struct atm_dev *dev)
 	status = (u_short) (buf_desc_ptr->desc_mode);  
 	if (status & (RX_CER | RX_PTE | RX_OFL))  
 	{  
-                atomic_inc(&vcc->stats->rx_err);
+                atomic_inc_unchecked(&vcc->stats->rx_err);
 		IF_ERR(printk("IA: bad packet, dropping it");)  
                 if (status & RX_CER) { 
                     IF_ERR(printk(" cause: packet CRC error\n");)
@@ -1169,7 +1169,7 @@ static int rx_pkt(struct atm_dev *dev)
 	len = dma_addr - buf_addr;  
         if (len > iadev->rx_buf_sz) {
            printk("Over %d bytes sdu received, dropped!!!\n", iadev->rx_buf_sz);
-           atomic_inc(&vcc->stats->rx_err);
+           atomic_inc_unchecked(&vcc->stats->rx_err);
 	   goto out_free_desc;
         }
 		  
@@ -1319,7 +1319,7 @@ static void rx_dle_intr(struct atm_dev *dev)
           ia_vcc = INPH_IA_VCC(vcc);
           if (ia_vcc == NULL)
           {
-             atomic_inc(&vcc->stats->rx_err);
+             atomic_inc_unchecked(&vcc->stats->rx_err);
              atm_return(vcc, skb->truesize);
              dev_kfree_skb_any(skb);
              goto INCR_DLE;
@@ -1331,7 +1331,7 @@ static void rx_dle_intr(struct atm_dev *dev)
           if ((length > iadev->rx_buf_sz) || (length > 
                               (skb->len - sizeof(struct cpcs_trailer))))
           {
-             atomic_inc(&vcc->stats->rx_err);
+             atomic_inc_unchecked(&vcc->stats->rx_err);
              IF_ERR(printk("rx_dle_intr: Bad  AAL5 trailer %d (skb len %d)", 
                                                             length, skb->len);)
              atm_return(vcc, skb->truesize);
@@ -1347,7 +1347,7 @@ static void rx_dle_intr(struct atm_dev *dev)
 
 	  IF_RX(printk("rx_dle_intr: skb push");)  
 	  vcc->push(vcc,skb);  
-	  atomic_inc(&vcc->stats->rx);
+	  atomic_inc_unchecked(&vcc->stats->rx);
           iadev->rx_pkt_cnt++;
       }  
 INCR_DLE:
@@ -2829,15 +2829,15 @@ static int ia_ioctl(struct atm_dev *dev, unsigned int cmd, void __user *arg)
          {
              struct k_sonet_stats *stats;
              stats = &PRIV(_ia_dev[board])->sonet_stats;
-             printk("section_bip: %d\n", atomic_read(&stats->section_bip));
-             printk("line_bip   : %d\n", atomic_read(&stats->line_bip));
-             printk("path_bip   : %d\n", atomic_read(&stats->path_bip));
-             printk("line_febe  : %d\n", atomic_read(&stats->line_febe));
-             printk("path_febe  : %d\n", atomic_read(&stats->path_febe));
-             printk("corr_hcs   : %d\n", atomic_read(&stats->corr_hcs));
-             printk("uncorr_hcs : %d\n", atomic_read(&stats->uncorr_hcs));
-             printk("tx_cells   : %d\n", atomic_read(&stats->tx_cells));
-             printk("rx_cells   : %d\n", atomic_read(&stats->rx_cells));
+             printk("section_bip: %d\n", atomic_read_unchecked(&stats->section_bip));
+             printk("line_bip   : %d\n", atomic_read_unchecked(&stats->line_bip));
+             printk("path_bip   : %d\n", atomic_read_unchecked(&stats->path_bip));
+             printk("line_febe  : %d\n", atomic_read_unchecked(&stats->line_febe));
+             printk("path_febe  : %d\n", atomic_read_unchecked(&stats->path_febe));
+             printk("corr_hcs   : %d\n", atomic_read_unchecked(&stats->corr_hcs));
+             printk("uncorr_hcs : %d\n", atomic_read_unchecked(&stats->uncorr_hcs));
+             printk("tx_cells   : %d\n", atomic_read_unchecked(&stats->tx_cells));
+             printk("rx_cells   : %d\n", atomic_read_unchecked(&stats->rx_cells));
          }
             ia_cmds.status = 0;
             break;
@@ -2942,7 +2942,7 @@ static int ia_pkt_tx (struct atm_vcc *vcc, struct sk_buff *skb) {
 	if ((desc == 0) || (desc > iadev->num_tx_desc))  
 	{  
 		IF_ERR(printk(DEV_LABEL "invalid desc for send: %d\n", desc);) 
-                atomic_inc(&vcc->stats->tx);
+                atomic_inc_unchecked(&vcc->stats->tx);
 		if (vcc->pop)   
 		    vcc->pop(vcc, skb);   
 		else  
@@ -3047,14 +3047,14 @@ static int ia_pkt_tx (struct atm_vcc *vcc, struct sk_buff *skb) {
         ATM_DESC(skb) = vcc->vci;
         skb_queue_tail(&iadev->tx_dma_q, skb);
 
-        atomic_inc(&vcc->stats->tx);
+        atomic_inc_unchecked(&vcc->stats->tx);
         iadev->tx_pkt_cnt++;
 	/* Increment transaction counter */  
 	writel(2, iadev->dma+IPHASE5575_TX_COUNTER);  
         
 #if 0        
         /* add flow control logic */ 
-        if (atomic_read(&vcc->stats->tx) % 20 == 0) {
+        if (atomic_read_unchecked(&vcc->stats->tx) % 20 == 0) {
           if (iavcc->vc_desc_cnt > 10) {
              vcc->tx_quota =  vcc->tx_quota * 3 / 4;
             printk("Tx1:  vcc->tx_quota = %d \n", (u32)vcc->tx_quota );
diff --git a/drivers/atm/lanai.c b/drivers/atm/lanai.c
index ce43ae3..969de38 100644
--- a/drivers/atm/lanai.c
+++ b/drivers/atm/lanai.c
@@ -1295,7 +1295,7 @@ static void lanai_send_one_aal5(struct lanai_dev *lanai,
 	vcc_tx_add_aal5_trailer(lvcc, skb->len, 0, 0);
 	lanai_endtx(lanai, lvcc);
 	lanai_free_skb(lvcc->tx.atmvcc, skb);
-	atomic_inc(&lvcc->tx.atmvcc->stats->tx);
+	atomic_inc_unchecked(&lvcc->tx.atmvcc->stats->tx);
 }
 
 /* Try to fill the buffer - don't call unless there is backlog */
@@ -1418,7 +1418,7 @@ static void vcc_rx_aal5(struct lanai_vcc *lvcc, int endptr)
 	ATM_SKB(skb)->vcc = lvcc->rx.atmvcc;
 	__net_timestamp(skb);
 	lvcc->rx.atmvcc->push(lvcc->rx.atmvcc, skb);
-	atomic_inc(&lvcc->rx.atmvcc->stats->rx);
+	atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx);
     out:
 	lvcc->rx.buf.ptr = end;
 	cardvcc_write(lvcc, endptr, vcc_rxreadptr);
@@ -1659,7 +1659,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s)
 		DPRINTK("(itf %d) got RX service entry 0x%X for non-AAL5 "
 		    "vcc %d\n", lanai->number, (unsigned int) s, vci);
 		lanai->stats.service_rxnotaal5++;
-		atomic_inc(&lvcc->rx.atmvcc->stats->rx_err);
+		atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err);
 		return 0;
 	}
 	if (likely(!(s & (SERVICE_TRASH | SERVICE_STREAM | SERVICE_CRCERR)))) {
@@ -1671,7 +1671,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s)
 		int bytes;
 		read_unlock(&vcc_sklist_lock);
 		DPRINTK("got trashed rx pdu on vci %d\n", vci);
-		atomic_inc(&lvcc->rx.atmvcc->stats->rx_err);
+		atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err);
 		lvcc->stats.x.aal5.service_trash++;
 		bytes = (SERVICE_GET_END(s) * 16) -
 		    (((unsigned long) lvcc->rx.buf.ptr) -
@@ -1683,7 +1683,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s)
 	}
 	if (s & SERVICE_STREAM) {
 		read_unlock(&vcc_sklist_lock);
-		atomic_inc(&lvcc->rx.atmvcc->stats->rx_err);
+		atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err);
 		lvcc->stats.x.aal5.service_stream++;
 		printk(KERN_ERR DEV_LABEL "(itf %d): Got AAL5 stream "
 		    "PDU on VCI %d!\n", lanai->number, vci);
@@ -1691,7 +1691,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s)
 		return 0;
 	}
 	DPRINTK("got rx crc error on vci %d\n", vci);
-	atomic_inc(&lvcc->rx.atmvcc->stats->rx_err);
+	atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err);
 	lvcc->stats.x.aal5.service_rxcrc++;
 	lvcc->rx.buf.ptr = &lvcc->rx.buf.start[SERVICE_GET_END(s) * 4];
 	cardvcc_write(lvcc, SERVICE_GET_END(s), vcc_rxreadptr);
diff --git a/drivers/atm/nicstar.c b/drivers/atm/nicstar.c
index ddc4ceb..36e29aa 100644
--- a/drivers/atm/nicstar.c
+++ b/drivers/atm/nicstar.c
@@ -1632,7 +1632,7 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb)
 	if ((vc = (vc_map *) vcc->dev_data) == NULL) {
 		printk("nicstar%d: vcc->dev_data == NULL on ns_send().\n",
 		       card->index);
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		dev_kfree_skb_any(skb);
 		return -EINVAL;
 	}
@@ -1640,7 +1640,7 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb)
 	if (!vc->tx) {
 		printk("nicstar%d: Trying to transmit on a non-tx VC.\n",
 		       card->index);
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		dev_kfree_skb_any(skb);
 		return -EINVAL;
 	}
@@ -1648,14 +1648,14 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb)
 	if (vcc->qos.aal != ATM_AAL5 && vcc->qos.aal != ATM_AAL0) {
 		printk("nicstar%d: Only AAL0 and AAL5 are supported.\n",
 		       card->index);
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		dev_kfree_skb_any(skb);
 		return -EINVAL;
 	}
 
 	if (skb_shinfo(skb)->nr_frags != 0) {
 		printk("nicstar%d: No scatter-gather yet.\n", card->index);
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		dev_kfree_skb_any(skb);
 		return -EINVAL;
 	}
@@ -1703,11 +1703,11 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb)
 	}
 
 	if (push_scqe(card, vc, scq, &scqe, skb) != 0) {
-		atomic_inc(&vcc->stats->tx_err);
+		atomic_inc_unchecked(&vcc->stats->tx_err);
 		dev_kfree_skb_any(skb);
 		return -EIO;
 	}
-	atomic_inc(&vcc->stats->tx);
+	atomic_inc_unchecked(&vcc->stats->tx);
 
 	return 0;
 }
@@ -2024,14 +2024,14 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 				printk
 				    ("nicstar%d: Can't allocate buffers for aal0.\n",
 				     card->index);
-				atomic_add(i, &vcc->stats->rx_drop);
+				atomic_add_unchecked(i, &vcc->stats->rx_drop);
 				break;
 			}
 			if (!atm_charge(vcc, sb->truesize)) {
 				RXPRINTK
 				    ("nicstar%d: atm_charge() dropped aal0 packets.\n",
 				     card->index);
-				atomic_add(i - 1, &vcc->stats->rx_drop);	/* already increased by 1 */
+				atomic_add_unchecked(i - 1, &vcc->stats->rx_drop);	/* already increased by 1 */
 				dev_kfree_skb_any(sb);
 				break;
 			}
@@ -2046,7 +2046,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 			ATM_SKB(sb)->vcc = vcc;
 			__net_timestamp(sb);
 			vcc->push(vcc, sb);
-			atomic_inc(&vcc->stats->rx);
+			atomic_inc_unchecked(&vcc->stats->rx);
 			cell += ATM_CELL_PAYLOAD;
 		}
 
@@ -2063,7 +2063,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 			if (iovb == NULL) {
 				printk("nicstar%d: Out of iovec buffers.\n",
 				       card->index);
-				atomic_inc(&vcc->stats->rx_drop);
+				atomic_inc_unchecked(&vcc->stats->rx_drop);
 				recycle_rx_buf(card, skb);
 				return;
 			}
@@ -2087,7 +2087,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 		   small or large buffer itself. */
 	} else if (NS_PRV_IOVCNT(iovb) >= NS_MAX_IOVECS) {
 		printk("nicstar%d: received too big AAL5 SDU.\n", card->index);
-		atomic_inc(&vcc->stats->rx_err);
+		atomic_inc_unchecked(&vcc->stats->rx_err);
 		recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data,
 				      NS_MAX_IOVECS);
 		NS_PRV_IOVCNT(iovb) = 0;
@@ -2107,7 +2107,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 			    ("nicstar%d: Expected a small buffer, and this is not one.\n",
 			     card->index);
 			which_list(card, skb);
-			atomic_inc(&vcc->stats->rx_err);
+			atomic_inc_unchecked(&vcc->stats->rx_err);
 			recycle_rx_buf(card, skb);
 			vc->rx_iov = NULL;
 			recycle_iov_buf(card, iovb);
@@ -2120,7 +2120,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 			    ("nicstar%d: Expected a large buffer, and this is not one.\n",
 			     card->index);
 			which_list(card, skb);
-			atomic_inc(&vcc->stats->rx_err);
+			atomic_inc_unchecked(&vcc->stats->rx_err);
 			recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data,
 					      NS_PRV_IOVCNT(iovb));
 			vc->rx_iov = NULL;
@@ -2143,7 +2143,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 				printk(" - PDU size mismatch.\n");
 			else
 				printk(".\n");
-			atomic_inc(&vcc->stats->rx_err);
+			atomic_inc_unchecked(&vcc->stats->rx_err);
 			recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data,
 					      NS_PRV_IOVCNT(iovb));
 			vc->rx_iov = NULL;
@@ -2157,14 +2157,14 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 			/* skb points to a small buffer */
 			if (!atm_charge(vcc, skb->truesize)) {
 				push_rxbufs(card, skb);
-				atomic_inc(&vcc->stats->rx_drop);
+				atomic_inc_unchecked(&vcc->stats->rx_drop);
 			} else {
 				skb_put(skb, len);
 				dequeue_sm_buf(card, skb);
 				ATM_SKB(skb)->vcc = vcc;
 				__net_timestamp(skb);
 				vcc->push(vcc, skb);
-				atomic_inc(&vcc->stats->rx);
+				atomic_inc_unchecked(&vcc->stats->rx);
 			}
 		} else if (NS_PRV_IOVCNT(iovb) == 2) {	/* One small plus one large buffer */
 			struct sk_buff *sb;
@@ -2175,14 +2175,14 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 			if (len <= NS_SMBUFSIZE) {
 				if (!atm_charge(vcc, sb->truesize)) {
 					push_rxbufs(card, sb);
-					atomic_inc(&vcc->stats->rx_drop);
+					atomic_inc_unchecked(&vcc->stats->rx_drop);
 				} else {
 					skb_put(sb, len);
 					dequeue_sm_buf(card, sb);
 					ATM_SKB(sb)->vcc = vcc;
 					__net_timestamp(sb);
 					vcc->push(vcc, sb);
-					atomic_inc(&vcc->stats->rx);
+					atomic_inc_unchecked(&vcc->stats->rx);
 				}
 
 				push_rxbufs(card, skb);
@@ -2191,7 +2191,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 
 				if (!atm_charge(vcc, skb->truesize)) {
 					push_rxbufs(card, skb);
-					atomic_inc(&vcc->stats->rx_drop);
+					atomic_inc_unchecked(&vcc->stats->rx_drop);
 				} else {
 					dequeue_lg_buf(card, skb);
 					skb_push(skb, NS_SMBUFSIZE);
@@ -2201,7 +2201,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 					ATM_SKB(skb)->vcc = vcc;
 					__net_timestamp(skb);
 					vcc->push(vcc, skb);
-					atomic_inc(&vcc->stats->rx);
+					atomic_inc_unchecked(&vcc->stats->rx);
 				}
 
 				push_rxbufs(card, sb);
@@ -2222,7 +2222,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 					printk
 					    ("nicstar%d: Out of huge buffers.\n",
 					     card->index);
-					atomic_inc(&vcc->stats->rx_drop);
+					atomic_inc_unchecked(&vcc->stats->rx_drop);
 					recycle_iovec_rx_bufs(card,
 							      (struct iovec *)
 							      iovb->data,
@@ -2273,7 +2273,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 					card->hbpool.count++;
 				} else
 					dev_kfree_skb_any(hb);
-				atomic_inc(&vcc->stats->rx_drop);
+				atomic_inc_unchecked(&vcc->stats->rx_drop);
 			} else {
 				/* Copy the small buffer to the huge buffer */
 				sb = (struct sk_buff *)iov->iov_base;
@@ -2307,7 +2307,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
 				ATM_SKB(hb)->vcc = vcc;
 				__net_timestamp(hb);
 				vcc->push(vcc, hb);
-				atomic_inc(&vcc->stats->rx);
+				atomic_inc_unchecked(&vcc->stats->rx);
 			}
 		}
 
diff --git a/drivers/atm/solos-pci.c b/drivers/atm/solos-pci.c
index 6ac2b2b..6373ebd 100644
--- a/drivers/atm/solos-pci.c
+++ b/drivers/atm/solos-pci.c
@@ -849,7 +849,7 @@ static void solos_bh(unsigned long card_arg)
 				}
 				atm_charge(vcc, skb->truesize);
 				vcc->push(vcc, skb);
-				atomic_inc(&vcc->stats->rx);
+				atomic_inc_unchecked(&vcc->stats->rx);
 				break;
 
 			case PKT_STATUS:
@@ -1130,7 +1130,7 @@ static uint32_t fpga_tx(struct solos_card *card)
 			vcc = SKB_CB(oldskb)->vcc;
 
 			if (vcc) {
-				atomic_inc(&vcc->stats->tx);
+				atomic_inc_unchecked(&vcc->stats->tx);
 				solos_pop(vcc, oldskb);
 			} else {
 				dev_kfree_skb_irq(oldskb);
diff --git a/drivers/atm/suni.c b/drivers/atm/suni.c
index 0215934..ce9f5b1 100644
--- a/drivers/atm/suni.c
+++ b/drivers/atm/suni.c
@@ -49,8 +49,8 @@ static DEFINE_SPINLOCK(sunis_lock);
 
 
 #define ADD_LIMITED(s,v) \
-    atomic_add((v),&stats->s); \
-    if (atomic_read(&stats->s) < 0) atomic_set(&stats->s,INT_MAX);
+    atomic_add_unchecked((v),&stats->s); \
+    if (atomic_read_unchecked(&stats->s) < 0) atomic_set_unchecked(&stats->s,INT_MAX);
 
 
 static void suni_hz(unsigned long from_timer)
diff --git a/drivers/atm/uPD98402.c b/drivers/atm/uPD98402.c
index 5120a96..e2572bd 100644
--- a/drivers/atm/uPD98402.c
+++ b/drivers/atm/uPD98402.c
@@ -42,7 +42,7 @@ static int fetch_stats(struct atm_dev *dev,struct sonet_stats __user *arg,int ze
 	struct sonet_stats tmp;
  	int error = 0;
 
-	atomic_add(GET(HECCT),&PRIV(dev)->sonet_stats.uncorr_hcs);
+	atomic_add_unchecked(GET(HECCT),&PRIV(dev)->sonet_stats.uncorr_hcs);
 	sonet_copy_stats(&PRIV(dev)->sonet_stats,&tmp);
 	if (arg) error = copy_to_user(arg,&tmp,sizeof(tmp));
 	if (zero && !error) {
@@ -161,9 +161,9 @@ static int uPD98402_ioctl(struct atm_dev *dev,unsigned int cmd,void __user *arg)
 
 
 #define ADD_LIMITED(s,v) \
-    { atomic_add(GET(v),&PRIV(dev)->sonet_stats.s); \
-    if (atomic_read(&PRIV(dev)->sonet_stats.s) < 0) \
-	atomic_set(&PRIV(dev)->sonet_stats.s,INT_MAX); }
+    { atomic_add_unchecked(GET(v),&PRIV(dev)->sonet_stats.s); \
+    if (atomic_read_unchecked(&PRIV(dev)->sonet_stats.s) < 0) \
+	atomic_set_unchecked(&PRIV(dev)->sonet_stats.s,INT_MAX); }
 
 
 static void stat_event(struct atm_dev *dev)
@@ -194,7 +194,7 @@ static void uPD98402_int(struct atm_dev *dev)
 		if (reason & uPD98402_INT_PFM) stat_event(dev);
 		if (reason & uPD98402_INT_PCO) {
 			(void) GET(PCOCR); /* clear interrupt cause */
-			atomic_add(GET(HECCT),
+			atomic_add_unchecked(GET(HECCT),
 			    &PRIV(dev)->sonet_stats.uncorr_hcs);
 		}
 		if ((reason & uPD98402_INT_RFO) && 
@@ -222,9 +222,9 @@ static int uPD98402_start(struct atm_dev *dev)
 	PUT(~(uPD98402_INT_PFM | uPD98402_INT_ALM | uPD98402_INT_RFO |
 	  uPD98402_INT_LOS),PIMR); /* enable them */
 	(void) fetch_stats(dev,NULL,1); /* clear kernel counters */
-	atomic_set(&PRIV(dev)->sonet_stats.corr_hcs,-1);
-	atomic_set(&PRIV(dev)->sonet_stats.tx_cells,-1);
-	atomic_set(&PRIV(dev)->sonet_stats.rx_cells,-1);
+	atomic_set_unchecked(&PRIV(dev)->sonet_stats.corr_hcs,-1);
+	atomic_set_unchecked(&PRIV(dev)->sonet_stats.tx_cells,-1);
+	atomic_set_unchecked(&PRIV(dev)->sonet_stats.rx_cells,-1);
 	return 0;
 }
 
diff --git a/drivers/atm/zatm.c b/drivers/atm/zatm.c
index cecfb94..87009ec 100644
--- a/drivers/atm/zatm.c
+++ b/drivers/atm/zatm.c
@@ -459,7 +459,7 @@ printk("dummy: 0x%08lx, 0x%08lx\n",dummy[0],dummy[1]);
 		}
 		if (!size) {
 			dev_kfree_skb_irq(skb);
-			if (vcc) atomic_inc(&vcc->stats->rx_err);
+			if (vcc) atomic_inc_unchecked(&vcc->stats->rx_err);
 			continue;
 		}
 		if (!atm_charge(vcc,skb->truesize)) {
@@ -469,7 +469,7 @@ printk("dummy: 0x%08lx, 0x%08lx\n",dummy[0],dummy[1]);
 		skb->len = size;
 		ATM_SKB(skb)->vcc = vcc;
 		vcc->push(vcc,skb);
-		atomic_inc(&vcc->stats->rx);
+		atomic_inc_unchecked(&vcc->stats->rx);
 	}
 	zout(pos & 0xffff,MTA(mbx));
 #if 0 /* probably a stupid idea */
@@ -733,7 +733,7 @@ if (*ZATM_PRV_DSC(skb) != (uPD98401_TXPD_V | uPD98401_TXPD_DP |
 			skb_queue_head(&zatm_vcc->backlog,skb);
 			break;
 		}
-	atomic_inc(&vcc->stats->tx);
+	atomic_inc_unchecked(&vcc->stats->tx);
 	wake_up(&zatm_vcc->tx_wait);
 }
 
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 6470eb8..3a7d92b 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -1136,7 +1136,7 @@ int subsys_interface_register(struct subsys_interface *sif)
 		return -EINVAL;
 
 	mutex_lock(&subsys->p->mutex);
-	list_add_tail(&sif->node, &subsys->p->interfaces);
+	pax_list_add_tail((struct list_head *)&sif->node, &subsys->p->interfaces);
 	if (sif->add_dev) {
 		subsys_dev_iter_init(&iter, subsys, NULL, NULL);
 		while ((dev = subsys_dev_iter_next(&iter)))
@@ -1161,7 +1161,7 @@ void subsys_interface_unregister(struct subsys_interface *sif)
 	subsys = sif->subsys;
 
 	mutex_lock(&subsys->p->mutex);
-	list_del_init(&sif->node);
+	pax_list_del_init((struct list_head *)&sif->node);
 	if (sif->remove_dev) {
 		subsys_dev_iter_init(&iter, subsys, NULL, NULL);
 		while ((dev = subsys_dev_iter_next(&iter)))
diff --git a/drivers/base/devres.c b/drivers/base/devres.c
index 8fc654f..36e28e9 100644
--- a/drivers/base/devres.c
+++ b/drivers/base/devres.c
@@ -476,7 +476,9 @@ static int remove_nodes(struct device *dev,
 
 static int release_nodes(struct device *dev, struct list_head *first,
 			 struct list_head *end, unsigned long flags)
-	__releases(&dev->devres_lock)
+	__releases(&dev->devres_lock);
+static int release_nodes(struct device *dev, struct list_head *first,
+			 struct list_head *end, unsigned long flags)
 {
 	LIST_HEAD(todo);
 	int cnt;
diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
index 44a74cf..a5dd826 100644
--- a/drivers/base/devtmpfs.c
+++ b/drivers/base/devtmpfs.c
@@ -354,7 +354,7 @@ int devtmpfs_mount(const char *mntdir)
 	if (!thread)
 		return 0;
 
-	err = sys_mount("devtmpfs", (char *)mntdir, "devtmpfs", MS_SILENT, NULL);
+	err = sys_mount((char __force_user *)"devtmpfs", (char __force_user *)mntdir, (char __force_user *)"devtmpfs", MS_SILENT, NULL);
 	if (err)
 		printk(KERN_INFO "devtmpfs: error mounting %i\n", err);
 	else
@@ -380,11 +380,11 @@ static int devtmpfsd(void *p)
 	*err = sys_unshare(CLONE_NEWNS);
 	if (*err)
 		goto out;
-	*err = sys_mount("devtmpfs", "/", "devtmpfs", MS_SILENT, options);
+	*err = sys_mount((char __force_user *)"devtmpfs", (char __force_user *)"/", (char __force_user *)"devtmpfs", MS_SILENT, (char __force_user *)options);
 	if (*err)
 		goto out;
-	sys_chdir("/.."); /* will traverse into overmounted root */
-	sys_chroot(".");
+	sys_chdir((char __force_user *)"/.."); /* will traverse into overmounted root */
+	sys_chroot((char __force_user *)".");
 	complete(&setup_done);
 	while (1) {
 		spin_lock(&req_lock);
diff --git a/drivers/base/node.c b/drivers/base/node.c
index 560751b..3a4847a 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -627,7 +627,7 @@ static ssize_t print_nodes_state(enum node_states state, char *buf)
 struct node_attr {
 	struct device_attribute attr;
 	enum node_states state;
-};
+} __do_const;
 
 static ssize_t show_node_state(struct device *dev,
 			       struct device_attribute *attr, char *buf)
diff --git a/drivers/base/platform-msi.c b/drivers/base/platform-msi.c
index 279e539..4c9d7fb 100644
--- a/drivers/base/platform-msi.c
+++ b/drivers/base/platform-msi.c
@@ -24,6 +24,8 @@
 #include <linux/msi.h>
 #include <linux/slab.h>
 
+#include <asm/pgtable.h>
+
 #define DEV_ID_SHIFT	21
 #define MAX_DEV_MSIS	(1 << (32 - DEV_ID_SHIFT))
 
@@ -81,10 +83,12 @@ static void platform_msi_update_dom_ops(struct msi_domain_info *info)
 
 	BUG_ON(!ops);
 
+	pax_open_kernel();
 	if (ops->msi_init == NULL)
-		ops->msi_init = platform_msi_init;
+		const_cast(ops->msi_init) = platform_msi_init;
 	if (ops->set_desc == NULL)
-		ops->set_desc = platform_msi_set_desc;
+		const_cast(ops->set_desc) = platform_msi_set_desc;
+	pax_close_kernel();
 }
 
 static void platform_msi_write_msg(struct irq_data *data, struct msi_msg *msg)
@@ -102,16 +106,18 @@ static void platform_msi_update_chip_ops(struct msi_domain_info *info)
 	struct irq_chip *chip = info->chip;
 
 	BUG_ON(!chip);
+	pax_open_kernel();
 	if (!chip->irq_mask)
-		chip->irq_mask = irq_chip_mask_parent;
+		const_cast(chip->irq_mask) = irq_chip_mask_parent;
 	if (!chip->irq_unmask)
-		chip->irq_unmask = irq_chip_unmask_parent;
+		const_cast(chip->irq_unmask) = irq_chip_unmask_parent;
 	if (!chip->irq_eoi)
-		chip->irq_eoi = irq_chip_eoi_parent;
+		const_cast(chip->irq_eoi) = irq_chip_eoi_parent;
 	if (!chip->irq_set_affinity)
-		chip->irq_set_affinity = msi_domain_set_affinity;
+		const_cast(chip->irq_set_affinity) = msi_domain_set_affinity;
 	if (!chip->irq_write_msi_msg)
-		chip->irq_write_msi_msg = platform_msi_write_msg;
+		const_cast(chip->irq_write_msi_msg) = platform_msi_write_msg;
+	pax_close_kernel();
 }
 
 static void platform_msi_free_descs(struct device *dev, int base, int nvec)
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index 56705b5..4e938f5 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -1841,8 +1841,10 @@ int genpd_dev_pm_attach(struct device *dev)
 		goto out;
 	}
 
-	dev->pm_domain->detach = genpd_dev_pm_detach;
-	dev->pm_domain->sync = genpd_dev_pm_sync;
+	pax_open_kernel();
+	const_cast(dev->pm_domain->detach) = genpd_dev_pm_detach;
+	const_cast(dev->pm_domain->sync) = genpd_dev_pm_sync;
+	pax_close_kernel();
 
 	mutex_lock(&pd->lock);
 	ret = genpd_poweron(pd, 0);
diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index b746904..10c39fe 100644
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -16,35 +16,32 @@
 
 typedef int (*pm_callback_t)(struct device *);
 
-static pm_callback_t __rpm_get_callback(struct device *dev, size_t cb_offset)
-{
-	pm_callback_t cb;
-	const struct dev_pm_ops *ops;
-
-	if (dev->pm_domain)
-		ops = &dev->pm_domain->ops;
-	else if (dev->type && dev->type->pm)
-		ops = dev->type->pm;
-	else if (dev->class && dev->class->pm)
-		ops = dev->class->pm;
-	else if (dev->bus && dev->bus->pm)
-		ops = dev->bus->pm;
-	else
-		ops = NULL;
-
-	if (ops)
-		cb = *(pm_callback_t *)((void *)ops + cb_offset);
-	else
-		cb = NULL;
-
-	if (!cb && dev->driver && dev->driver->pm)
-		cb = *(pm_callback_t *)((void *)dev->driver->pm + cb_offset);
-
-	return cb;
-}
-
-#define RPM_GET_CALLBACK(dev, callback) \
-		__rpm_get_callback(dev, offsetof(struct dev_pm_ops, callback))
+#define RPM_GET_CALLBACK(dev, callback)			\
+({							\
+	pm_callback_t cb;				\
+	const struct dev_pm_ops *ops;			\
+							\
+	if (dev->pm_domain)				\
+		ops = &dev->pm_domain->ops;		\
+	else if (dev->type && dev->type->pm)		\
+		ops = dev->type->pm;			\
+	else if (dev->class && dev->class->pm)		\
+		ops = dev->class->pm;			\
+	else if (dev->bus && dev->bus->pm)		\
+		ops = dev->bus->pm;			\
+	else						\
+		ops = NULL;				\
+							\
+	if (ops)					\
+		cb = ops->callback;			\
+	else						\
+		cb = NULL;				\
+							\
+	if (!cb && dev->driver && dev->driver->pm)	\
+		cb = dev->driver->pm->callback;		\
+							\
+	cb;						\
+})
 
 static int rpm_resume(struct device *dev, int rpmflags);
 static int rpm_suspend(struct device *dev, int rpmflags);
@@ -263,8 +260,8 @@ static int rpm_check_suspend_allowed(struct device *dev)
  * @cb: Runtime PM callback to run.
  * @dev: Device to run the callback for.
  */
+static int __rpm_callback(int (*cb)(struct device *), struct device *dev) __must_hold(&dev->power.lock);
 static int __rpm_callback(int (*cb)(struct device *), struct device *dev)
-	__releases(&dev->power.lock) __acquires(&dev->power.lock)
 {
 	int retval;
 
@@ -412,8 +409,8 @@ static int rpm_callback(int (*cb)(struct device *), struct device *dev)
  *
  * This function must be called under dev->power.lock with interrupts disabled.
  */
+static int rpm_suspend(struct device *dev, int rpmflags) __must_hold(&dev->power.lock);
 static int rpm_suspend(struct device *dev, int rpmflags)
-	__releases(&dev->power.lock) __acquires(&dev->power.lock)
 {
 	int (*callback)(struct device *);
 	struct device *parent = NULL;
@@ -594,8 +591,8 @@ static int rpm_suspend(struct device *dev, int rpmflags)
  *
  * This function must be called under dev->power.lock with interrupts disabled.
  */
+static int rpm_resume(struct device *dev, int rpmflags) __must_hold(&dev->power.lock);
 static int rpm_resume(struct device *dev, int rpmflags)
-	__releases(&dev->power.lock) __acquires(&dev->power.lock)
 {
 	int (*callback)(struct device *);
 	struct device *parent = NULL;
diff --git a/drivers/base/power/sysfs.c b/drivers/base/power/sysfs.c
index a7b4679..d302490 100644
--- a/drivers/base/power/sysfs.c
+++ b/drivers/base/power/sysfs.c
@@ -181,7 +181,7 @@ static ssize_t rtpm_status_show(struct device *dev,
 			return -EIO;
 		}
 	}
-	return sprintf(buf, p);
+	return sprintf(buf, "%s", p);
 }
 
 static DEVICE_ATTR(runtime_status, 0444, rtpm_status_show, NULL);
diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
index 5fb7718..b4b79fb 100644
--- a/drivers/base/power/wakeup.c
+++ b/drivers/base/power/wakeup.c
@@ -36,14 +36,14 @@ static bool pm_abort_suspend __read_mostly;
  * They need to be modified together atomically, so it's better to use one
  * atomic variable to hold them both.
  */
-static atomic_t combined_event_count = ATOMIC_INIT(0);
+static atomic_unchecked_t combined_event_count = ATOMIC_INIT(0);
 
 #define IN_PROGRESS_BITS	(sizeof(int) * 4)
 #define MAX_IN_PROGRESS		((1 << IN_PROGRESS_BITS) - 1)
 
 static void split_counters(unsigned int *cnt, unsigned int *inpr)
 {
-	unsigned int comb = atomic_read(&combined_event_count);
+	unsigned int comb = atomic_read_unchecked(&combined_event_count);
 
 	*cnt = (comb >> IN_PROGRESS_BITS);
 	*inpr = comb & MAX_IN_PROGRESS;
@@ -542,7 +542,7 @@ static void wakeup_source_activate(struct wakeup_source *ws)
 		ws->start_prevent_time = ws->last_time;
 
 	/* Increment the counter of events in progress. */
-	cec = atomic_inc_return(&combined_event_count);
+	cec = atomic_inc_return_unchecked(&combined_event_count);
 
 	trace_wakeup_source_activate(ws->name, cec);
 }
@@ -668,7 +668,7 @@ static void wakeup_source_deactivate(struct wakeup_source *ws)
 	 * Increment the counter of registered wakeup events and decrement the
 	 * couter of wakeup events in progress simultaneously.
 	 */
-	cec = atomic_add_return(MAX_IN_PROGRESS, &combined_event_count);
+	cec = atomic_add_return_unchecked(MAX_IN_PROGRESS, &combined_event_count);
 	trace_wakeup_source_deactivate(ws->name, cec);
 
 	split_counters(&cnt, &inpr);
diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c
index 1ee3d40..3274424 100644
--- a/drivers/base/regmap/regmap-debugfs.c
+++ b/drivers/base/regmap/regmap-debugfs.c
@@ -400,7 +400,7 @@ static const struct file_operations regmap_reg_ranges_fops = {
 static int regmap_access_show(struct seq_file *s, void *ignored)
 {
 	struct regmap *map = s->private;
-	int i, reg_len;
+	size_t i, reg_len;
 
 	reg_len = regmap_calc_reg_len(map->max_register);
 
@@ -410,7 +410,7 @@ static int regmap_access_show(struct seq_file *s, void *ignored)
 			continue;
 
 		/* Format the register */
-		seq_printf(s, "%.*x: %c %c %c %c\n", reg_len, i,
+		seq_printf(s, "%.*x: %c %c %c %c\n", (int)reg_len, i,
 			   regmap_readable(map, i) ? 'y' : 'n',
 			   regmap_writeable(map, i) ? 'y' : 'n',
 			   regmap_volatile(map, i) ? 'y' : 'n',
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index df2d2ef..f9ea3b9 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -402,8 +402,8 @@ static void regmap_unlock_mutex(void *__map)
 	mutex_unlock(&map->mutex);
 }
 
+static void regmap_lock_spinlock(void *__map) __acquires(&map->spinlock);
 static void regmap_lock_spinlock(void *__map)
-__acquires(&map->spinlock)
 {
 	struct regmap *map = __map;
 	unsigned long flags;
@@ -412,8 +412,8 @@ __acquires(&map->spinlock)
 	map->spinlock_flags = flags;
 }
 
+static void regmap_unlock_spinlock(void *__map) __releases(&map->spinlock);
 static void regmap_unlock_spinlock(void *__map)
-__releases(&map->spinlock)
 {
 	struct regmap *map = __map;
 	spin_unlock_irqrestore(&map->spinlock, map->spinlock_flags);
diff --git a/drivers/base/syscore.c b/drivers/base/syscore.c
index 8d98a32..61d3165 100644
--- a/drivers/base/syscore.c
+++ b/drivers/base/syscore.c
@@ -22,7 +22,7 @@ static DEFINE_MUTEX(syscore_ops_lock);
 void register_syscore_ops(struct syscore_ops *ops)
 {
 	mutex_lock(&syscore_ops_lock);
-	list_add_tail(&ops->node, &syscore_ops_list);
+	pax_list_add_tail((struct list_head *)&ops->node, &syscore_ops_list);
 	mutex_unlock(&syscore_ops_lock);
 }
 EXPORT_SYMBOL_GPL(register_syscore_ops);
@@ -34,7 +34,7 @@ EXPORT_SYMBOL_GPL(register_syscore_ops);
 void unregister_syscore_ops(struct syscore_ops *ops)
 {
 	mutex_lock(&syscore_ops_lock);
-	list_del(&ops->node);
+	pax_list_del((struct list_head *)&ops->node);
 	mutex_unlock(&syscore_ops_lock);
 }
 EXPORT_SYMBOL_GPL(unregister_syscore_ops);
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 63c2064..34fae98 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -3018,7 +3018,7 @@ static void start_io(ctlr_info_t *h)
 	while (!list_empty(&h->reqQ)) {
 		c = list_entry(h->reqQ.next, CommandList_struct, list);
 		/* can't do anything if fifo is full */
-		if ((h->access.fifo_full(h))) {
+		if ((h->access->fifo_full(h))) {
 			dev_warn(&h->pdev->dev, "fifo full\n");
 			break;
 		}
@@ -3028,7 +3028,7 @@ static void start_io(ctlr_info_t *h)
 		h->Qdepth--;
 
 		/* Tell the controller execute command */
-		h->access.submit_command(h, c);
+		h->access->submit_command(h, c);
 
 		/* Put job onto the completed Q */
 		addQ(&h->cmpQ, c);
@@ -3454,17 +3454,17 @@ startio:
 
 static inline unsigned long get_next_completion(ctlr_info_t *h)
 {
-	return h->access.command_completed(h);
+	return h->access->command_completed(h);
 }
 
 static inline int interrupt_pending(ctlr_info_t *h)
 {
-	return h->access.intr_pending(h);
+	return h->access->intr_pending(h);
 }
 
 static inline long interrupt_not_for_us(ctlr_info_t *h)
 {
-	return ((h->access.intr_pending(h) == 0) ||
+	return ((h->access->intr_pending(h) == 0) ||
 		(h->interrupts_enabled == 0));
 }
 
@@ -3497,7 +3497,7 @@ static inline u32 next_command(ctlr_info_t *h)
 	u32 a;
 
 	if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant)))
-		return h->access.command_completed(h);
+		return h->access->command_completed(h);
 
 	if ((*(h->reply_pool_head) & 1) == (h->reply_pool_wraparound)) {
 		a = *(h->reply_pool_head); /* Next cmd in ring buffer */
@@ -4054,7 +4054,7 @@ static void cciss_put_controller_into_performant_mode(ctlr_info_t *h)
 		trans_support & CFGTBL_Trans_use_short_tags);
 
 	/* Change the access methods to the performant access methods */
-	h->access = SA5_performant_access;
+	h->access = &SA5_performant_access;
 	h->transMethod = CFGTBL_Trans_Performant;
 
 	return;
@@ -4328,7 +4328,7 @@ static int cciss_pci_init(ctlr_info_t *h)
 	if (prod_index < 0)
 		return -ENODEV;
 	h->product_name = products[prod_index].product_name;
-	h->access = *(products[prod_index].access);
+	h->access = products[prod_index].access;
 
 	if (cciss_board_disabled(h)) {
 		dev_warn(&h->pdev->dev, "controller appears to be disabled\n");
@@ -5059,7 +5059,7 @@ reinit_after_soft_reset:
 	}
 
 	/* make sure the board interrupts are off */
-	h->access.set_intr_mask(h, CCISS_INTR_OFF);
+	h->access->set_intr_mask(h, CCISS_INTR_OFF);
 	rc = cciss_request_irq(h, do_cciss_msix_intr, do_cciss_intx);
 	if (rc)
 		goto clean2;
@@ -5109,7 +5109,7 @@ reinit_after_soft_reset:
 		 * fake ones to scoop up any residual completions.
 		 */
 		spin_lock_irqsave(&h->lock, flags);
-		h->access.set_intr_mask(h, CCISS_INTR_OFF);
+		h->access->set_intr_mask(h, CCISS_INTR_OFF);
 		spin_unlock_irqrestore(&h->lock, flags);
 		free_irq(h->intr[h->intr_mode], h);
 		rc = cciss_request_irq(h, cciss_msix_discard_completions,
@@ -5129,9 +5129,9 @@ reinit_after_soft_reset:
 		dev_info(&h->pdev->dev, "Board READY.\n");
 		dev_info(&h->pdev->dev,
 			"Waiting for stale completions to drain.\n");
-		h->access.set_intr_mask(h, CCISS_INTR_ON);
+		h->access->set_intr_mask(h, CCISS_INTR_ON);
 		msleep(10000);
-		h->access.set_intr_mask(h, CCISS_INTR_OFF);
+		h->access->set_intr_mask(h, CCISS_INTR_OFF);
 
 		rc = controller_reset_failed(h->cfgtable);
 		if (rc)
@@ -5154,7 +5154,7 @@ reinit_after_soft_reset:
 	cciss_scsi_setup(h);
 
 	/* Turn the interrupts on so we can service requests */
-	h->access.set_intr_mask(h, CCISS_INTR_ON);
+	h->access->set_intr_mask(h, CCISS_INTR_ON);
 
 	/* Get the firmware version */
 	inq_buff = kzalloc(sizeof(InquiryData_struct), GFP_KERNEL);
@@ -5226,7 +5226,7 @@ static void cciss_shutdown(struct pci_dev *pdev)
 	kfree(flush_buf);
 	if (return_code != IO_OK)
 		dev_warn(&h->pdev->dev, "Error flushing cache\n");
-	h->access.set_intr_mask(h, CCISS_INTR_OFF);
+	h->access->set_intr_mask(h, CCISS_INTR_OFF);
 	free_irq(h->intr[h->intr_mode], h);
 }
 
diff --git a/drivers/block/cciss.h b/drivers/block/cciss.h
index 7fda30e..2f27946 100644
--- a/drivers/block/cciss.h
+++ b/drivers/block/cciss.h
@@ -101,7 +101,7 @@ struct ctlr_info
 	/* information about each logical volume */
 	drive_info_struct *drv[CISS_MAX_LUN];
 
-	struct access_method access;
+	struct access_method *access;
 
 	/* queue and queue Info */ 
 	struct list_head reqQ;
@@ -402,27 +402,27 @@ static bool SA5_performant_intr_pending(ctlr_info_t *h)
 }
 
 static struct access_method SA5_access = {
-	SA5_submit_command,
-	SA5_intr_mask,
-	SA5_fifo_full,
-	SA5_intr_pending,
-	SA5_completed,
+	.submit_command = SA5_submit_command,
+	.set_intr_mask = SA5_intr_mask,
+	.fifo_full = SA5_fifo_full,
+	.intr_pending = SA5_intr_pending,
+	.command_completed = SA5_completed,
 };
 
 static struct access_method SA5B_access = {
-        SA5_submit_command,
-        SA5B_intr_mask,
-        SA5_fifo_full,
-        SA5B_intr_pending,
-        SA5_completed,
+	.submit_command = SA5_submit_command,
+	.set_intr_mask = SA5B_intr_mask,
+	.fifo_full = SA5_fifo_full,
+	.intr_pending = SA5B_intr_pending,
+	.command_completed = SA5_completed,
 };
 
 static struct access_method SA5_performant_access = {
-	SA5_submit_command,
-	SA5_performant_intr_mask,
-	SA5_fifo_full,
-	SA5_performant_intr_pending,
-	SA5_performant_completed,
+	.submit_command = SA5_submit_command,
+	.set_intr_mask = SA5_performant_intr_mask,
+	.fifo_full = SA5_fifo_full,
+	.intr_pending = SA5_performant_intr_pending,
+	.command_completed = SA5_performant_completed,
 };
 
 struct board_type {
diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c
index 92d6fc0..e4e1e27 100644
--- a/drivers/block/drbd/drbd_bitmap.c
+++ b/drivers/block/drbd/drbd_bitmap.c
@@ -1019,7 +1019,7 @@ static void bm_page_io_async(struct drbd_bm_aio_ctx *ctx, int page_nr) __must_ho
 		submit_bio(rw, bio);
 		/* this should not count as user activity and cause the
 		 * resync to throttle -- see drbd_rs_should_slow_down(). */
-		atomic_add(len >> 9, &device->rs_sect_ev);
+		atomic_add_unchecked(len >> 9, &device->rs_sect_ev);
 	}
 }
 
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index 7a1cf7e..538f666 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -382,7 +382,7 @@ struct drbd_epoch {
 	struct drbd_connection *connection;
 	struct list_head list;
 	unsigned int barrier_nr;
-	atomic_t epoch_size; /* increased on every request added. */
+	atomic_unchecked_t epoch_size; /* increased on every request added. */
 	atomic_t active;     /* increased on every req. added, and dec on every finished. */
 	unsigned long flags;
 };
@@ -951,7 +951,7 @@ struct drbd_device {
 	unsigned int al_tr_number;
 	int al_tr_cycle;
 	wait_queue_head_t seq_wait;
-	atomic_t packet_seq;
+	atomic_unchecked_t packet_seq;
 	unsigned int peer_seq;
 	spinlock_t peer_seq_lock;
 	unsigned long comm_bm_set; /* communicated number of set bits. */
@@ -960,8 +960,8 @@ struct drbd_device {
 	struct mutex own_state_mutex;
 	struct mutex *state_mutex; /* either own_state_mutex or first_peer_device(device)->connection->cstate_mutex */
 	char congestion_reason;  /* Why we where congested... */
-	atomic_t rs_sect_in; /* for incoming resync data rate, SyncTarget */
-	atomic_t rs_sect_ev; /* for submitted resync data rate, both */
+	atomic_unchecked_t rs_sect_in; /* for incoming resync data rate, SyncTarget */
+	atomic_unchecked_t rs_sect_ev; /* for submitted resync data rate, both */
 	int rs_last_sect_ev; /* counter to compare with */
 	int rs_last_events;  /* counter of read or write "events" (unit sectors)
 			      * on the lower level device when we last looked. */
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index fa20977..1285a70 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -1329,7 +1329,7 @@ static int _drbd_send_ack(struct drbd_peer_device *peer_device, enum drbd_packet
 	p->sector = sector;
 	p->block_id = block_id;
 	p->blksize = blksize;
-	p->seq_num = cpu_to_be32(atomic_inc_return(&peer_device->device->packet_seq));
+	p->seq_num = cpu_to_be32(atomic_inc_return_unchecked(&peer_device->device->packet_seq));
 	return drbd_send_command(peer_device, sock, cmd, sizeof(*p), NULL, 0);
 }
 
@@ -1635,7 +1635,7 @@ int drbd_send_dblock(struct drbd_peer_device *peer_device, struct drbd_request *
 		return -EIO;
 	p->sector = cpu_to_be64(req->i.sector);
 	p->block_id = (unsigned long)req;
-	p->seq_num = cpu_to_be32(atomic_inc_return(&device->packet_seq));
+	p->seq_num = cpu_to_be32(atomic_inc_return_unchecked(&device->packet_seq));
 	dp_flags = bio_flags_to_wire(peer_device->connection, req->master_bio->bi_rw);
 	if (device->state.conn >= C_SYNC_SOURCE &&
 	    device->state.conn <= C_PAUSED_SYNC_T)
@@ -1907,8 +1907,8 @@ void drbd_init_set_defaults(struct drbd_device *device)
 	atomic_set(&device->unacked_cnt, 0);
 	atomic_set(&device->local_cnt, 0);
 	atomic_set(&device->pp_in_use_by_net, 0);
-	atomic_set(&device->rs_sect_in, 0);
-	atomic_set(&device->rs_sect_ev, 0);
+	atomic_set_unchecked(&device->rs_sect_in, 0);
+	atomic_set_unchecked(&device->rs_sect_ev, 0);
 	atomic_set(&device->ap_in_flight, 0);
 	atomic_set(&device->md_io.in_use, 0);
 
@@ -2675,8 +2675,8 @@ void drbd_destroy_connection(struct kref *kref)
 	struct drbd_connection *connection = container_of(kref, struct drbd_connection, kref);
 	struct drbd_resource *resource = connection->resource;
 
-	if (atomic_read(&connection->current_epoch->epoch_size) !=  0)
-		drbd_err(connection, "epoch_size:%d\n", atomic_read(&connection->current_epoch->epoch_size));
+	if (atomic_read_unchecked(&connection->current_epoch->epoch_size) !=  0)
+		drbd_err(connection, "epoch_size:%d\n", atomic_read_unchecked(&connection->current_epoch->epoch_size));
 	kfree(connection->current_epoch);
 
 	idr_destroy(&connection->peer_devices);
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index 1fd1dcc..30ab091 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -89,8 +89,8 @@ int drbd_adm_get_initial_state(struct sk_buff *skb, struct netlink_callback *cb)
 #include "drbd_nla.h"
 #include <linux/genl_magic_func.h>
 
-static atomic_t drbd_genl_seq = ATOMIC_INIT(2); /* two. */
-static atomic_t notify_genl_seq = ATOMIC_INIT(2); /* two. */
+static atomic_unchecked_t drbd_genl_seq = ATOMIC_INIT(2); /* two. */
+static atomic_unchecked_t notify_genl_seq = ATOMIC_INIT(2); /* two. */
 
 DEFINE_MUTEX(notification_mutex);
 
@@ -4389,7 +4389,7 @@ void drbd_bcast_event(struct drbd_device *device, const struct sib_info *sib)
 	unsigned seq;
 	int err = -ENOMEM;
 
-	seq = atomic_inc_return(&drbd_genl_seq);
+	seq = atomic_inc_return_unchecked(&drbd_genl_seq);
 	msg = genlmsg_new(NLMSG_GOODSIZE, GFP_NOIO);
 	if (!msg)
 		goto failed;
@@ -4441,7 +4441,7 @@ void notify_resource_state(struct sk_buff *skb,
 	int err;
 
 	if (!skb) {
-		seq = atomic_inc_return(&notify_genl_seq);
+		seq = atomic_inc_return_unchecked(&notify_genl_seq);
 		skb = genlmsg_new(NLMSG_GOODSIZE, GFP_NOIO);
 		err = -ENOMEM;
 		if (!skb)
@@ -4492,7 +4492,7 @@ void notify_device_state(struct sk_buff *skb,
 	int err;
 
 	if (!skb) {
-		seq = atomic_inc_return(&notify_genl_seq);
+		seq = atomic_inc_return_unchecked(&notify_genl_seq);
 		skb = genlmsg_new(NLMSG_GOODSIZE, GFP_NOIO);
 		err = -ENOMEM;
 		if (!skb)
@@ -4541,7 +4541,7 @@ void notify_connection_state(struct sk_buff *skb,
 	int err;
 
 	if (!skb) {
-		seq = atomic_inc_return(&notify_genl_seq);
+		seq = atomic_inc_return_unchecked(&notify_genl_seq);
 		skb = genlmsg_new(NLMSG_GOODSIZE, GFP_NOIO);
 		err = -ENOMEM;
 		if (!skb)
@@ -4591,7 +4591,7 @@ void notify_peer_device_state(struct sk_buff *skb,
 	int err;
 
 	if (!skb) {
-		seq = atomic_inc_return(&notify_genl_seq);
+		seq = atomic_inc_return_unchecked(&notify_genl_seq);
 		skb = genlmsg_new(NLMSG_GOODSIZE, GFP_NOIO);
 		err = -ENOMEM;
 		if (!skb)
@@ -4634,7 +4634,7 @@ void notify_helper(enum drbd_notification_type type,
 {
 	struct drbd_resource *resource = device ? device->resource : connection->resource;
 	struct drbd_helper_info helper_info;
-	unsigned int seq = atomic_inc_return(&notify_genl_seq);
+	unsigned int seq = atomic_inc_return_unchecked(&notify_genl_seq);
 	struct sk_buff *skb = NULL;
 	struct drbd_genlmsghdr *dh;
 	int err;
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index 050aaa1..2e7013c 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -895,7 +895,7 @@ int drbd_connected(struct drbd_peer_device *peer_device)
 	struct drbd_device *device = peer_device->device;
 	int err;
 
-	atomic_set(&device->packet_seq, 0);
+	atomic_set_unchecked(&device->packet_seq, 0);
 	device->peer_seq = 0;
 
 	device->state_mutex = peer_device->connection->agreed_pro_version < 100 ?
@@ -1266,7 +1266,7 @@ static enum finish_epoch drbd_may_finish_epoch(struct drbd_connection *connectio
 	do {
 		next_epoch = NULL;
 
-		epoch_size = atomic_read(&epoch->epoch_size);
+		epoch_size = atomic_read_unchecked(&epoch->epoch_size);
 
 		switch (ev & ~EV_CLEANUP) {
 		case EV_PUT:
@@ -1306,7 +1306,7 @@ static enum finish_epoch drbd_may_finish_epoch(struct drbd_connection *connectio
 					rv = FE_DESTROYED;
 			} else {
 				epoch->flags = 0;
-				atomic_set(&epoch->epoch_size, 0);
+				atomic_set_unchecked(&epoch->epoch_size, 0);
 				/* atomic_set(&epoch->active, 0); is already zero */
 				if (rv == FE_STILL_LIVE)
 					rv = FE_RECYCLED;
@@ -1577,7 +1577,7 @@ static int receive_Barrier(struct drbd_connection *connection, struct packet_inf
 		conn_wait_active_ee_empty(connection);
 		drbd_flush(connection);
 
-		if (atomic_read(&connection->current_epoch->epoch_size)) {
+		if (atomic_read_unchecked(&connection->current_epoch->epoch_size)) {
 			epoch = kmalloc(sizeof(struct drbd_epoch), GFP_NOIO);
 			if (epoch)
 				break;
@@ -1591,11 +1591,11 @@ static int receive_Barrier(struct drbd_connection *connection, struct packet_inf
 	}
 
 	epoch->flags = 0;
-	atomic_set(&epoch->epoch_size, 0);
+	atomic_set_unchecked(&epoch->epoch_size, 0);
 	atomic_set(&epoch->active, 0);
 
 	spin_lock(&connection->epoch_lock);
-	if (atomic_read(&connection->current_epoch->epoch_size)) {
+	if (atomic_read_unchecked(&connection->current_epoch->epoch_size)) {
 		list_add(&epoch->list, &connection->current_epoch->list);
 		connection->current_epoch = epoch;
 		connection->epochs++;
@@ -1807,7 +1807,9 @@ static int e_end_resync_block(struct drbd_work *w, int unused)
 }
 
 static int recv_resync_read(struct drbd_peer_device *peer_device, sector_t sector,
-			    struct packet_info *pi) __releases(local)
+			    struct packet_info *pi) __releases(local);
+static int recv_resync_read(struct drbd_peer_device *peer_device, sector_t sector,
+			    struct packet_info *pi)
 {
 	struct drbd_device *device = peer_device->device;
 	struct drbd_peer_request *peer_req;
@@ -1829,7 +1831,7 @@ static int recv_resync_read(struct drbd_peer_device *peer_device, sector_t secto
 	list_add_tail(&peer_req->w.list, &device->sync_ee);
 	spin_unlock_irq(&device->resource->req_lock);
 
-	atomic_add(pi->size >> 9, &device->rs_sect_ev);
+	atomic_add_unchecked(pi->size >> 9, &device->rs_sect_ev);
 	if (drbd_submit_peer_request(device, peer_req, WRITE, DRBD_FAULT_RS_WR) == 0)
 		return 0;
 
@@ -1927,7 +1929,7 @@ static int receive_RSDataReply(struct drbd_connection *connection, struct packet
 		drbd_send_ack_dp(peer_device, P_NEG_ACK, p, pi->size);
 	}
 
-	atomic_add(pi->size >> 9, &device->rs_sect_in);
+	atomic_add_unchecked(pi->size >> 9, &device->rs_sect_in);
 
 	return err;
 }
@@ -2317,7 +2319,7 @@ static int receive_Data(struct drbd_connection *connection, struct packet_info *
 
 		err = wait_for_and_update_peer_seq(peer_device, peer_seq);
 		drbd_send_ack_dp(peer_device, P_NEG_ACK, p, pi->size);
-		atomic_inc(&connection->current_epoch->epoch_size);
+		atomic_inc_unchecked(&connection->current_epoch->epoch_size);
 		err2 = drbd_drain_block(peer_device, pi->size);
 		if (!err)
 			err = err2;
@@ -2361,7 +2363,7 @@ static int receive_Data(struct drbd_connection *connection, struct packet_info *
 
 	spin_lock(&connection->epoch_lock);
 	peer_req->epoch = connection->current_epoch;
-	atomic_inc(&peer_req->epoch->epoch_size);
+	atomic_inc_unchecked(&peer_req->epoch->epoch_size);
 	atomic_inc(&peer_req->epoch->active);
 	spin_unlock(&connection->epoch_lock);
 
@@ -2506,7 +2508,7 @@ bool drbd_rs_c_min_rate_throttle(struct drbd_device *device)
 
 	curr_events = (int)part_stat_read(&disk->part0, sectors[0]) +
 		      (int)part_stat_read(&disk->part0, sectors[1]) -
-			atomic_read(&device->rs_sect_ev);
+			atomic_read_unchecked(&device->rs_sect_ev);
 
 	if (atomic_read(&device->ap_actlog_cnt)
 	    || curr_events - device->rs_last_events > 64) {
@@ -2645,7 +2647,7 @@ static int receive_DataRequest(struct drbd_connection *connection, struct packet
 			device->use_csums = true;
 		} else if (pi->cmd == P_OV_REPLY) {
 			/* track progress, we may need to throttle */
-			atomic_add(size >> 9, &device->rs_sect_in);
+			atomic_add_unchecked(size >> 9, &device->rs_sect_in);
 			peer_req->w.cb = w_e_end_ov_reply;
 			dec_rs_pending(device);
 			/* drbd_rs_begin_io done when we sent this request,
@@ -2718,7 +2720,7 @@ static int receive_DataRequest(struct drbd_connection *connection, struct packet
 		goto out_free_e;
 
 submit_for_resync:
-	atomic_add(size >> 9, &device->rs_sect_ev);
+	atomic_add_unchecked(size >> 9, &device->rs_sect_ev);
 
 submit:
 	update_receiver_timing_details(connection, drbd_submit_peer_request);
@@ -4591,7 +4593,7 @@ struct data_cmd {
 	int expect_payload;
 	size_t pkt_size;
 	int (*fn)(struct drbd_connection *, struct packet_info *);
-};
+} __do_const;
 
 static struct data_cmd drbd_cmd_handler[] = {
 	[P_DATA]	    = { 1, sizeof(struct p_data), receive_Data },
@@ -4709,7 +4711,7 @@ static void conn_disconnect(struct drbd_connection *connection)
 	if (!list_empty(&connection->current_epoch->list))
 		drbd_err(connection, "ASSERTION FAILED: connection->current_epoch->list not empty\n");
 	/* ok, no more ee's on the fly, it is safe to reset the epoch_size */
-	atomic_set(&connection->current_epoch->epoch_size, 0);
+	atomic_set_unchecked(&connection->current_epoch->epoch_size, 0);
 	connection->send.seen_any_write_yet = false;
 
 	drbd_info(connection, "Connection closed\n");
@@ -5209,7 +5211,7 @@ static int got_IsInSync(struct drbd_connection *connection, struct packet_info *
 		put_ldev(device);
 	}
 	dec_rs_pending(device);
-	atomic_add(blksize >> 9, &device->rs_sect_in);
+	atomic_add_unchecked(blksize >> 9, &device->rs_sect_in);
 
 	return 0;
 }
@@ -5460,7 +5462,7 @@ static int got_skip(struct drbd_connection *connection, struct packet_info *pi)
 struct meta_sock_cmd {
 	size_t pkt_size;
 	int (*fn)(struct drbd_connection *connection, struct packet_info *);
-};
+} __do_const;
 
 static void set_rcvtimeo(struct drbd_connection *connection, bool ping_timeout)
 {
diff --git a/drivers/block/drbd/drbd_state.c b/drivers/block/drbd/drbd_state.c
index 5a7ef78..bbd058b 100644
--- a/drivers/block/drbd/drbd_state.c
+++ b/drivers/block/drbd/drbd_state.c
@@ -1497,9 +1497,10 @@ int drbd_bitmap_io_from_worker(struct drbd_device *device,
 
 void notify_resource_state_change(struct sk_buff *skb,
 				  unsigned int seq,
-				  struct drbd_resource_state_change *resource_state_change,
+				  void *_resource_state_change,
 				  enum drbd_notification_type type)
 {
+	struct drbd_resource_state_change *resource_state_change = _resource_state_change;
 	struct drbd_resource *resource = resource_state_change->resource;
 	struct resource_info resource_info = {
 		.res_role = resource_state_change->role[NEW],
@@ -1513,9 +1514,10 @@ void notify_resource_state_change(struct sk_buff *skb,
 
 void notify_connection_state_change(struct sk_buff *skb,
 				    unsigned int seq,
-				    struct drbd_connection_state_change *connection_state_change,
+				    void *_connection_state_change,
 				    enum drbd_notification_type type)
 {
+	struct drbd_connection_state_change *connection_state_change = _connection_state_change;
 	struct drbd_connection *connection = connection_state_change->connection;
 	struct connection_info connection_info = {
 		.conn_connection_state = connection_state_change->cstate[NEW],
@@ -1527,9 +1529,10 @@ void notify_connection_state_change(struct sk_buff *skb,
 
 void notify_device_state_change(struct sk_buff *skb,
 				unsigned int seq,
-				struct drbd_device_state_change *device_state_change,
+				void *_device_state_change,
 				enum drbd_notification_type type)
 {
+	struct drbd_device_state_change *device_state_change = _device_state_change;
 	struct drbd_device *device = device_state_change->device;
 	struct device_info device_info = {
 		.dev_disk_state = device_state_change->disk_state[NEW],
@@ -1540,9 +1543,10 @@ void notify_device_state_change(struct sk_buff *skb,
 
 void notify_peer_device_state_change(struct sk_buff *skb,
 				     unsigned int seq,
-				     struct drbd_peer_device_state_change *p,
+				     void *_p,
 				     enum drbd_notification_type type)
 {
+	struct drbd_peer_device_state_change *p = _p;
 	struct drbd_peer_device *peer_device = p->peer_device;
 	struct peer_device_info peer_device_info = {
 		.peer_repl_state = p->repl_state[NEW],
diff --git a/drivers/block/drbd/drbd_state.h b/drivers/block/drbd/drbd_state.h
index bd98953..488e501 100644
--- a/drivers/block/drbd/drbd_state.h
+++ b/drivers/block/drbd/drbd_state.h
@@ -126,7 +126,7 @@ extern enum drbd_state_rv _drbd_set_state(struct drbd_device *, union drbd_state
 					  enum chg_state_flags,
 					  struct completion *done);
 extern void print_st_err(struct drbd_device *, union drbd_state,
-			union drbd_state, int);
+			union drbd_state, enum drbd_state_rv);
 
 enum drbd_state_rv
 _conn_request_state(struct drbd_connection *connection, union drbd_state mask, union drbd_state val,
diff --git a/drivers/block/drbd/drbd_state_change.h b/drivers/block/drbd/drbd_state_change.h
index 9e503a1..ac60262 100644
--- a/drivers/block/drbd/drbd_state_change.h
+++ b/drivers/block/drbd/drbd_state_change.h
@@ -45,19 +45,19 @@ extern void forget_state_change(struct drbd_state_change *);
 
 extern void notify_resource_state_change(struct sk_buff *,
 					 unsigned int,
-					 struct drbd_resource_state_change *,
+					 void *,
 					 enum drbd_notification_type type);
 extern void notify_connection_state_change(struct sk_buff *,
 					   unsigned int,
-					   struct drbd_connection_state_change *,
+					   void *,
 					   enum drbd_notification_type type);
 extern void notify_device_state_change(struct sk_buff *,
 				       unsigned int,
-				       struct drbd_device_state_change *,
+				       void *,
 				       enum drbd_notification_type type);
 extern void notify_peer_device_state_change(struct sk_buff *,
 					    unsigned int,
-					    struct drbd_peer_device_state_change *,
+					    void *,
 					    enum drbd_notification_type type);
 
 #endif  /* DRBD_STATE_CHANGE_H */
diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c
index 4d87499..1e2bcce 100644
--- a/drivers/block/drbd/drbd_worker.c
+++ b/drivers/block/drbd/drbd_worker.c
@@ -87,7 +87,8 @@ void drbd_md_endio(struct bio *bio)
 /* reads on behalf of the partner,
  * "submitted" by the receiver
  */
-static void drbd_endio_read_sec_final(struct drbd_peer_request *peer_req) __releases(local)
+static void drbd_endio_read_sec_final(struct drbd_peer_request *peer_req) __releases(local);
+static void drbd_endio_read_sec_final(struct drbd_peer_request *peer_req)
 {
 	unsigned long flags = 0;
 	struct drbd_peer_device *peer_device = peer_req->peer_device;
@@ -108,7 +109,8 @@ static void drbd_endio_read_sec_final(struct drbd_peer_request *peer_req) __rele
 
 /* writes on behalf of the partner, or resync writes,
  * "submitted" by the receiver, final stage.  */
-void drbd_endio_write_sec_final(struct drbd_peer_request *peer_req) __releases(local)
+void drbd_endio_write_sec_final(struct drbd_peer_request *peer_req) __releases(local);
+void drbd_endio_write_sec_final(struct drbd_peer_request *peer_req)
 {
 	unsigned long flags = 0;
 	struct drbd_peer_device *peer_device = peer_req->peer_device;
@@ -396,7 +398,7 @@ static int read_for_csum(struct drbd_peer_device *peer_device, sector_t sector,
 	list_add_tail(&peer_req->w.list, &device->read_ee);
 	spin_unlock_irq(&device->resource->req_lock);
 
-	atomic_add(size >> 9, &device->rs_sect_ev);
+	atomic_add_unchecked(size >> 9, &device->rs_sect_ev);
 	if (drbd_submit_peer_request(device, peer_req, READ, DRBD_FAULT_RS_RD) == 0)
 		return 0;
 
@@ -541,7 +543,7 @@ static int drbd_rs_number_requests(struct drbd_device *device)
 	unsigned int sect_in;  /* Number of sectors that came in since the last turn */
 	int number, mxb;
 
-	sect_in = atomic_xchg(&device->rs_sect_in, 0);
+	sect_in = atomic_xchg_unchecked(&device->rs_sect_in, 0);
 	device->rs_in_flight -= sect_in;
 
 	rcu_read_lock();
@@ -1588,8 +1590,8 @@ void drbd_rs_controller_reset(struct drbd_device *device)
 	struct gendisk *disk = device->ldev->backing_bdev->bd_contains->bd_disk;
 	struct fifo_buffer *plan;
 
-	atomic_set(&device->rs_sect_in, 0);
-	atomic_set(&device->rs_sect_ev, 0);
+	atomic_set_unchecked(&device->rs_sect_in, 0);
+	atomic_set_unchecked(&device->rs_sect_ev, 0);
 	device->rs_in_flight = 0;
 	device->rs_last_events =
 		(int)part_stat_read(&disk->part0, sectors[0]) +
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 84708a5..95c0e55 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -961,6 +961,10 @@ static void empty(void)
 {
 }
 
+static void empty2(int i)
+{
+}
+
 static void (*floppy_work_fn)(void);
 
 static void floppy_work_workfn(struct work_struct *work)
@@ -1953,14 +1957,14 @@ static const struct cont_t wakeup_cont = {
 	.interrupt	= empty,
 	.redo		= do_wakeup,
 	.error		= empty,
-	.done		= (done_f)empty
+	.done		= empty2
 };
 
 static const struct cont_t intr_cont = {
 	.interrupt	= empty,
 	.redo		= process_fd_request,
 	.error		= empty,
-	.done		= (done_f)empty
+	.done		= empty2
 };
 
 static int wait_til_done(void (*handler)(void), bool interruptible)
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index d06c62e..cd04d96 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -109,7 +109,7 @@ static int pkt_seq_show(struct seq_file *m, void *p);
 
 static sector_t get_zone(sector_t sector, struct pktcdvd_device *pd)
 {
-	return (sector + pd->offset) & ~(sector_t)(pd->settings.size - 1);
+	return (sector + pd->offset) & ~(sector_t)(pd->settings.size - 1UL);
 }
 
 /*
@@ -1890,7 +1890,7 @@ static noinline_for_stack int pkt_probe_settings(struct pktcdvd_device *pd)
 		return -EROFS;
 	}
 	pd->settings.fp = ti.fp;
-	pd->offset = (be32_to_cpu(ti.track_start) << 2) & (pd->settings.size - 1);
+	pd->offset = (be32_to_cpu(ti.track_start) << 2) & (pd->settings.size - 1UL);
 
 	if (ti.nwa_v) {
 		pd->nwa = be32_to_cpu(ti.next_writable);
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 0ede6d7..9bc6529 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -64,7 +64,7 @@
  * If the counter is already at its maximum value returns
  * -EINVAL without updating it.
  */
-static int atomic_inc_return_safe(atomic_t *v)
+static int __intentional_overflow(-1) atomic_inc_return_safe(atomic_t *v)
 {
 	unsigned int counter;
 
diff --git a/drivers/block/smart1,2.h b/drivers/block/smart1,2.h
index e5565fb..71be10b4 100644
--- a/drivers/block/smart1,2.h
+++ b/drivers/block/smart1,2.h
@@ -108,11 +108,11 @@ static unsigned long smart4_intr_pending(ctlr_info_t *h)
 }
 
 static struct access_method smart4_access = {
-	smart4_submit_command,
-	smart4_intr_mask,
-	smart4_fifo_full,
-	smart4_intr_pending,
-	smart4_completed,
+	.submit_command = smart4_submit_command,
+	.set_intr_mask = smart4_intr_mask,
+	.fifo_full = smart4_fifo_full,
+	.intr_pending = smart4_intr_pending,
+	.command_completed = smart4_completed,
 };
 
 /*
@@ -144,11 +144,11 @@ static unsigned long smart2_intr_pending(ctlr_info_t *h)
 }
 
 static struct access_method smart2_access = {
-	smart2_submit_command,
-	smart2_intr_mask,
-	smart2_fifo_full,
-	smart2_intr_pending,
-	smart2_completed,
+	.submit_command = smart2_submit_command,
+	.set_intr_mask = smart2_intr_mask,
+	.fifo_full = smart2_fifo_full,
+	.intr_pending = smart2_intr_pending,
+	.command_completed = smart2_completed,
 };
 
 /*
@@ -180,11 +180,11 @@ static unsigned long smart2e_intr_pending(ctlr_info_t *h)
 }
 
 static struct access_method smart2e_access = {
-	smart2e_submit_command,
-	smart2e_intr_mask,
-	smart2e_fifo_full,
-	smart2e_intr_pending,
-	smart2e_completed,
+	.submit_command = smart2e_submit_command,
+	.set_intr_mask = smart2e_intr_mask,
+	.fifo_full = smart2e_fifo_full,
+	.intr_pending = smart2e_intr_pending,
+	.command_completed = smart2e_completed,
 };
 
 /*
@@ -270,9 +270,9 @@ static unsigned long smart1_intr_pending(ctlr_info_t *h)
 }
 
 static struct access_method smart1_access = {
-	smart1_submit_command,
-	smart1_intr_mask,
-	smart1_fifo_full,
-	smart1_intr_pending,
-	smart1_completed,
+	.submit_command = smart1_submit_command,
+	.set_intr_mask = smart1_intr_mask,
+	.fifo_full = smart1_fifo_full,
+	.intr_pending = smart1_intr_pending,
+	.command_completed = smart1_completed,
 };
diff --git a/drivers/bluetooth/btwilink.c b/drivers/bluetooth/btwilink.c
index 24a652f..2dffae6 100644
--- a/drivers/bluetooth/btwilink.c
+++ b/drivers/bluetooth/btwilink.c
@@ -275,7 +275,7 @@ static int ti_st_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 
 static int bt_ti_probe(struct platform_device *pdev)
 {
-	static struct ti_st *hst;
+	struct ti_st *hst;
 	struct hci_dev *hdev;
 	int err;
 
diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c
index a49b283..a3af977 100644
--- a/drivers/bus/arm-cci.c
+++ b/drivers/bus/arm-cci.c
@@ -1472,8 +1472,10 @@ static int cci_pmu_init(struct cci_pmu *cci_pmu, struct platform_device *pdev)
 	char *name = model->name;
 	u32 num_cntrs;
 
-	pmu_event_attr_group.attrs = model->event_attrs;
-	pmu_format_attr_group.attrs = model->format_attrs;
+	pax_open_kernel();
+	const_cast(pmu_event_attr_group.attrs) = model->event_attrs;
+	const_cast(pmu_format_attr_group.attrs) = model->format_attrs;
+	pax_close_kernel();
 
 	cci_pmu->pmu = (struct pmu) {
 		.name		= cci_pmu->model->name,
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
index 1b257ea..2280898 100644
--- a/drivers/cdrom/cdrom.c
+++ b/drivers/cdrom/cdrom.c
@@ -610,7 +610,6 @@ int register_cdrom(struct cdrom_device_info *cdi)
 	ENSURE(reset, CDC_RESET);
 	ENSURE(generic_packet, CDC_GENERIC_PACKET);
 	cdi->mc_flags = 0;
-	cdo->n_minors = 0;
 	cdi->options = CDO_USE_FFLAGS;
 
 	if (autoclose == 1 && CDROM_CAN(CDC_CLOSE_TRAY))
@@ -630,8 +629,11 @@ int register_cdrom(struct cdrom_device_info *cdi)
 	else
 		cdi->cdda_method = CDDA_OLD;
 
-	if (!cdo->generic_packet)
-		cdo->generic_packet = cdrom_dummy_generic_packet;
+	if (!cdo->generic_packet) {
+		pax_open_kernel();
+		const_cast(cdo->generic_packet) = cdrom_dummy_generic_packet;
+		pax_close_kernel();
+	}
 
 	cd_dbg(CD_REG_UNREG, "drive \"/dev/%s\" registered\n", cdi->name);
 	mutex_lock(&cdrom_mutex);
@@ -652,7 +654,6 @@ void unregister_cdrom(struct cdrom_device_info *cdi)
 	if (cdi->exit)
 		cdi->exit(cdi);
 
-	cdi->ops->n_minors--;
 	cd_dbg(CD_REG_UNREG, "drive \"/dev/%s\" unregistered\n", cdi->name);
 }
 
@@ -2127,7 +2128,7 @@ static int cdrom_read_cdda_old(struct cdrom_device_info *cdi, __u8 __user *ubuf,
 	 */
 	nr = nframes;
 	do {
-		cgc.buffer = kmalloc(CD_FRAMESIZE_RAW * nr, GFP_KERNEL);
+		cgc.buffer = kzalloc(CD_FRAMESIZE_RAW * nr, GFP_KERNEL);
 		if (cgc.buffer)
 			break;
 
@@ -3431,7 +3432,7 @@ static int cdrom_print_info(const char *header, int val, char *info,
 	struct cdrom_device_info *cdi;
 	int ret;
 
-	ret = scnprintf(info + *pos, max_size - *pos, header);
+	ret = scnprintf(info + *pos, max_size - *pos, "%s", header);
 	if (!ret)
 		return 1;
 
diff --git a/drivers/cdrom/gdrom.c b/drivers/cdrom/gdrom.c
index 584bc31..e64a12c 100644
--- a/drivers/cdrom/gdrom.c
+++ b/drivers/cdrom/gdrom.c
@@ -491,7 +491,6 @@ static struct cdrom_device_ops gdrom_ops = {
 	.audio_ioctl		= gdrom_audio_ioctl,
 	.capability		= CDC_MULTI_SESSION | CDC_MEDIA_CHANGED |
 				  CDC_RESET | CDC_DRIVE_STATUS | CDC_CD_R,
-	.n_minors		= 1,
 };
 
 static int gdrom_bdops_open(struct block_device *bdev, fmode_t mode)
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 3ec0766..bf9f1e9 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -17,7 +17,8 @@ config DEVMEM
 
 config DEVKMEM
 	bool "/dev/kmem virtual device support"
-	default y
+	default n
+	depends on !GRKERNSEC_KMEM
 	help
 	  Say Y here if you want to support the /dev/kmem device. The
 	  /dev/kmem device is rarely used, but can be used for certain
@@ -587,6 +588,7 @@ config DEVPORT
 	bool
 	depends on !M68K
 	depends on ISA || PCI
+	depends on !GRKERNSEC_KMEM
 	default y
 
 source "drivers/s390/char/Kconfig"
diff --git a/drivers/char/agp/compat_ioctl.c b/drivers/char/agp/compat_ioctl.c
index a48e05b..6bac831 100644
--- a/drivers/char/agp/compat_ioctl.c
+++ b/drivers/char/agp/compat_ioctl.c
@@ -108,7 +108,7 @@ static int compat_agpioc_reserve_wrap(struct agp_file_private *priv, void __user
 			return -ENOMEM;
 		}
 
-		if (copy_from_user(usegment, (void __user *) ureserve.seg_list,
+		if (copy_from_user(usegment, (void __force_user *) ureserve.seg_list,
 				   sizeof(*usegment) * ureserve.seg_count)) {
 			kfree(usegment);
 			kfree(ksegment);
diff --git a/drivers/char/agp/frontend.c b/drivers/char/agp/frontend.c
index 0f64d14..4cf4d6b 100644
--- a/drivers/char/agp/frontend.c
+++ b/drivers/char/agp/frontend.c
@@ -806,7 +806,7 @@ static int agpioc_reserve_wrap(struct agp_file_private *priv, void __user *arg)
 	if (copy_from_user(&reserve, arg, sizeof(struct agp_region)))
 		return -EFAULT;
 
-	if ((unsigned) reserve.seg_count >= ~0U/sizeof(struct agp_segment))
+	if ((unsigned) reserve.seg_count >= ~0U/sizeof(struct agp_segment_priv))
 		return -EFAULT;
 
 	client = agp_find_client_by_pid(reserve.pid);
@@ -836,7 +836,7 @@ static int agpioc_reserve_wrap(struct agp_file_private *priv, void __user *arg)
 		if (segment == NULL)
 			return -ENOMEM;
 
-		if (copy_from_user(segment, (void __user *) reserve.seg_list,
+		if (copy_from_user(segment, (void __force_user *) reserve.seg_list,
 				   sizeof(struct agp_segment) * reserve.seg_count)) {
 			kfree(segment);
 			return -EFAULT;
diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index aef87fd..c17d9bb 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -1410,8 +1410,8 @@ int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev,
 }
 EXPORT_SYMBOL(intel_gmch_probe);
 
-void intel_gtt_get(u64 *gtt_total, size_t *stolen_size,
-		   phys_addr_t *mappable_base, u64 *mappable_end)
+void intel_gtt_get(u64 *gtt_total, u64 *stolen_size,
+		   u64 *mappable_base, u64 *mappable_end)
 {
 	*gtt_total = intel_private.gtt_total_entries << PAGE_SHIFT;
 	*stolen_size = intel_private.stolen_size;
diff --git a/drivers/char/genrtc.c b/drivers/char/genrtc.c
index 4f94375..413694e 100644
--- a/drivers/char/genrtc.c
+++ b/drivers/char/genrtc.c
@@ -273,6 +273,7 @@ static int gen_rtc_ioctl(struct file *file,
 	switch (cmd) {
 
 	case RTC_PLL_GET:
+	    memset(&pll, 0, sizeof(pll));
 	    if (get_rtc_pll(&pll))
 	 	    return -EINVAL;
 	    else
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index be54e53..50272fe 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -574,7 +574,7 @@ static inline unsigned long hpet_time_div(struct hpets *hpets,
 }
 
 static int
-hpet_ioctl_common(struct hpet_dev *devp, int cmd, unsigned long arg,
+hpet_ioctl_common(struct hpet_dev *devp, unsigned int cmd, unsigned long arg,
 		  struct hpet_info *info)
 {
 	struct hpet_timer __iomem *timer;
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index 94fb407..603dd43 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -436,7 +436,7 @@ struct ipmi_smi {
 	struct proc_dir_entry *proc_dir;
 	char                  proc_dir_name[10];
 
-	atomic_t stats[IPMI_NUM_STATS];
+	atomic_unchecked_t stats[IPMI_NUM_STATS];
 
 	/*
 	 * run_to_completion duplicate of smb_info, smi_info
@@ -468,9 +468,9 @@ static LIST_HEAD(smi_watchers);
 static DEFINE_MUTEX(smi_watchers_mutex);
 
 #define ipmi_inc_stat(intf, stat) \
-	atomic_inc(&(intf)->stats[IPMI_STAT_ ## stat])
+	atomic_inc_unchecked(&(intf)->stats[IPMI_STAT_ ## stat])
 #define ipmi_get_stat(intf, stat) \
-	((unsigned int) atomic_read(&(intf)->stats[IPMI_STAT_ ## stat]))
+	((unsigned int) atomic_read_unchecked(&(intf)->stats[IPMI_STAT_ ## stat]))
 
 static const char * const addr_src_to_str[] = {
 	"invalid", "hotmod", "hardcoded", "SPMI", "ACPI", "SMBIOS", "PCI",
@@ -2835,7 +2835,7 @@ int ipmi_register_smi(const struct ipmi_smi_handlers *handlers,
 	INIT_LIST_HEAD(&intf->cmd_rcvrs);
 	init_waitqueue_head(&intf->waitq);
 	for (i = 0; i < IPMI_NUM_STATS; i++)
-		atomic_set(&intf->stats[i], 0);
+		atomic_set_unchecked(&intf->stats[i], 0);
 
 	intf->proc_dir = NULL;
 
diff --git a/drivers/char/ipmi/ipmi_poweroff.c b/drivers/char/ipmi/ipmi_poweroff.c
index 9f2e3be..676c910 100644
--- a/drivers/char/ipmi/ipmi_poweroff.c
+++ b/drivers/char/ipmi/ipmi_poweroff.c
@@ -66,7 +66,7 @@ static void (*specific_poweroff_func)(ipmi_user_t user);
 /* Holds the old poweroff function so we can restore it on removal. */
 static void (*old_poweroff_func)(void);
 
-static int set_param_ifnum(const char *val, struct kernel_param *kp)
+static int set_param_ifnum(const char *val, const struct kernel_param *kp)
 {
 	int rv = param_set_int(val, kp);
 	if (rv)
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index 1e25b52..9b8ee6a 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -302,7 +302,7 @@ struct smi_info {
 	unsigned char slave_addr;
 
 	/* Counters and things for the proc filesystem. */
-	atomic_t stats[SI_NUM_STATS];
+	atomic_unchecked_t stats[SI_NUM_STATS];
 
 	struct task_struct *thread;
 
@@ -311,9 +311,9 @@ struct smi_info {
 };
 
 #define smi_inc_stat(smi, stat) \
-	atomic_inc(&(smi)->stats[SI_STAT_ ## stat])
+	atomic_inc_unchecked(&(smi)->stats[SI_STAT_ ## stat])
 #define smi_get_stat(smi, stat) \
-	((unsigned int) atomic_read(&(smi)->stats[SI_STAT_ ## stat]))
+	((unsigned int) atomic_read_unchecked(&(smi)->stats[SI_STAT_ ## stat]))
 
 #define SI_MAX_PARMS 4
 
@@ -1345,7 +1345,7 @@ static unsigned int num_slave_addrs;
 #define IPMI_MEM_ADDR_SPACE 1
 static const char * const addr_space_to_str[] = { "i/o", "mem" };
 
-static int hotmod_handler(const char *val, struct kernel_param *kp);
+static int hotmod_handler(const char *val, const struct kernel_param *kp);
 
 module_param_call(hotmod, hotmod_handler, NULL, NULL, 0200);
 MODULE_PARM_DESC(hotmod, "Add and remove interfaces.  See"
@@ -1806,7 +1806,7 @@ static struct smi_info *smi_info_alloc(void)
 	return info;
 }
 
-static int hotmod_handler(const char *val, struct kernel_param *kp)
+static int hotmod_handler(const char *val, const struct kernel_param *kp)
 {
 	char *str = kstrdup(val, GFP_KERNEL);
 	int  rv;
@@ -3626,7 +3626,7 @@ static int try_smi_init(struct smi_info *new_smi)
 	atomic_set(&new_smi->req_events, 0);
 	new_smi->run_to_completion = false;
 	for (i = 0; i < SI_NUM_STATS; i++)
-		atomic_set(&new_smi->stats[i], 0);
+		atomic_set_unchecked(&new_smi->stats[i], 0);
 
 	new_smi->interrupt_disabled = true;
 	atomic_set(&new_smi->need_watch, 0);
diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c
index 8b3be8b..c342470 100644
--- a/drivers/char/ipmi/ipmi_ssif.c
+++ b/drivers/char/ipmi/ipmi_ssif.c
@@ -284,17 +284,17 @@ struct ssif_info {
 	unsigned int  multi_len;
 	unsigned int  multi_pos;
 
-	atomic_t stats[SSIF_NUM_STATS];
+	atomic_unchecked_t stats[SSIF_NUM_STATS];
 };
 
 #define ssif_inc_stat(ssif, stat) \
-	atomic_inc(&(ssif)->stats[SSIF_STAT_ ## stat])
+	atomic_inc_unchecked(&(ssif)->stats[SSIF_STAT_ ## stat])
 #define ssif_get_stat(ssif, stat) \
-	((unsigned int) atomic_read(&(ssif)->stats[SSIF_STAT_ ## stat]))
+	((unsigned int) atomic_read_unchecked(&(ssif)->stats[SSIF_STAT_ ## stat]))
 
 static bool initialized;
 
-static atomic_t next_intf = ATOMIC_INIT(0);
+static atomic_unchecked_t next_intf = ATOMIC_INIT(0);
 
 static void return_hosed_msg(struct ssif_info *ssif_info,
 			     struct ipmi_smi_msg *msg);
@@ -1604,7 +1604,7 @@ static int ssif_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	}
 
  found:
-	ssif_info->intf_num = atomic_inc_return(&next_intf);
+	ssif_info->intf_num = atomic_inc_return_unchecked(&next_intf);
 
 	if (ssif_dbg_probe) {
 		pr_info("ssif_probe: i2c_probe found device at i2c address %x\n",
@@ -1618,7 +1618,7 @@ static int ssif_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	ssif_info->retry_timer.function = retry_timeout;
 
 	for (i = 0; i < SSIF_NUM_STATS; i++)
-		atomic_set(&ssif_info->stats[i], 0);
+		atomic_set_unchecked(&ssif_info->stats[i], 0);
 
 	if (ssif_info->supports_pec)
 		ssif_info->client->flags |= I2C_CLIENT_PEC;
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index 71025c2..27d9797 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -18,6 +18,7 @@
 #include <linux/raw.h>
 #include <linux/tty.h>
 #include <linux/capability.h>
+#include <linux/security.h>
 #include <linux/ptrace.h>
 #include <linux/device.h>
 #include <linux/highmem.h>
@@ -36,6 +37,10 @@
 
 #define DEVPORT_MINOR	4
 
+#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC)
+extern const struct file_operations grsec_fops;
+#endif
+
 static inline unsigned long size_inside_page(unsigned long start,
 					     unsigned long size)
 {
@@ -67,9 +72,13 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size)
 
 	while (cursor < to) {
 		if (!devmem_is_allowed(pfn)) {
+#ifdef CONFIG_GRKERNSEC_KMEM
+			gr_handle_mem_readwrite(from, to);
+#else
 			printk(KERN_INFO
 		"Program %s tried to access /dev/mem between %Lx->%Lx.\n",
 				current->comm, from, to);
+#endif
 			return 0;
 		}
 		cursor += PAGE_SIZE;
@@ -77,6 +86,11 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size)
 	}
 	return 1;
 }
+#elif defined(CONFIG_GRKERNSEC_KMEM)
+static inline int range_is_allowed(unsigned long pfn, unsigned long size)
+{
+	return 0;
+}
 #else
 static inline int range_is_allowed(unsigned long pfn, unsigned long size)
 {
@@ -124,7 +138,8 @@ static ssize_t read_mem(struct file *file, char __user *buf,
 #endif
 
 	while (count > 0) {
-		unsigned long remaining;
+		unsigned long remaining = 0;
+		char *temp;
 
 		sz = size_inside_page(p, count);
 
@@ -140,7 +155,24 @@ static ssize_t read_mem(struct file *file, char __user *buf,
 		if (!ptr)
 			return -EFAULT;
 
-		remaining = copy_to_user(buf, ptr, sz);
+#ifdef CONFIG_PAX_USERCOPY
+		temp = kmalloc(sz, GFP_KERNEL|GFP_USERCOPY);
+		if (!temp) {
+			unxlate_dev_mem_ptr(p, ptr);
+			return -ENOMEM;
+		}
+		remaining = probe_kernel_read(temp, ptr, sz);
+#else
+		temp = ptr;
+#endif
+
+		if (!remaining)
+			remaining = copy_to_user(buf, temp, sz);
+
+#ifdef CONFIG_PAX_USERCOPY
+		kfree(temp);
+#endif
+
 		unxlate_dev_mem_ptr(p, ptr);
 		if (remaining)
 			return -EFAULT;
@@ -380,9 +412,8 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
 			 size_t count, loff_t *ppos)
 {
 	unsigned long p = *ppos;
-	ssize_t low_count, read, sz;
+	ssize_t low_count, read, sz, err = 0;
 	char *kbuf; /* k-addr because vread() takes vmlist_lock rwlock */
-	int err = 0;
 
 	read = 0;
 	if (p < (unsigned long) high_memory) {
@@ -404,6 +435,8 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
 		}
 #endif
 		while (low_count > 0) {
+			char *temp;
+
 			sz = size_inside_page(p, low_count);
 
 			/*
@@ -413,7 +446,23 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
 			 */
 			kbuf = xlate_dev_kmem_ptr((void *)p);
 
-			if (copy_to_user(buf, kbuf, sz))
+#ifdef CONFIG_PAX_USERCOPY
+			temp = kmalloc(sz, GFP_KERNEL|GFP_USERCOPY);
+			if (!temp)
+				return -ENOMEM;
+			err = probe_kernel_read(temp, kbuf, sz);
+#else
+			temp = kbuf;
+#endif
+
+			if (!err)
+				err = copy_to_user(buf, temp, sz);
+
+#ifdef CONFIG_PAX_USERCOPY
+			kfree(temp);
+#endif
+
+			if (err)
 				return -EFAULT;
 			buf += sz;
 			p += sz;
@@ -802,6 +851,9 @@ static const struct memdev {
 #ifdef CONFIG_PRINTK
 	[11] = { "kmsg", 0644, &kmsg_fops, 0 },
 #endif
+#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC)
+	[13] = { "grsec",S_IRUSR | S_IWUGO, &grsec_fops, 0 },
+#endif
 };
 
 static int memory_open(struct inode *inode, struct file *filp)
@@ -863,7 +915,7 @@ static int __init chr_dev_init(void)
 			continue;
 
 		device_create(mem_class, NULL, MKDEV(MEM_MAJOR, minor),
-			      NULL, devlist[minor].name);
+			      NULL, "%s", devlist[minor].name);
 	}
 
 	return tty_init();
diff --git a/drivers/char/nvram.c b/drivers/char/nvram.c
index 678fa97..5598cef 100644
--- a/drivers/char/nvram.c
+++ b/drivers/char/nvram.c
@@ -235,7 +235,7 @@ static ssize_t nvram_read(struct file *file, char __user *buf,
 
 	spin_unlock_irq(&rtc_lock);
 
-	if (copy_to_user(buf, contents, tmp - contents))
+	if (tmp - contents > sizeof(contents) || copy_to_user(buf, contents, tmp - contents))
 		return -EFAULT;
 
 	*ppos = i;
diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
index 22c2765..d92c8fa 100644
--- a/drivers/char/pcmcia/synclink_cs.c
+++ b/drivers/char/pcmcia/synclink_cs.c
@@ -2340,7 +2340,7 @@ static void mgslpc_close(struct tty_struct *tty, struct file * filp)
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):mgslpc_close(%s) entry, count=%d\n",
-			 __FILE__, __LINE__, info->device_name, port->count);
+			 __FILE__, __LINE__, info->device_name, atomic_read(&port->count));
 
 	if (tty_port_close_start(port, tty, filp) == 0)
 		goto cleanup;
@@ -2358,7 +2358,7 @@ static void mgslpc_close(struct tty_struct *tty, struct file * filp)
 cleanup:
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):mgslpc_close(%s) exit, count=%d\n", __FILE__, __LINE__,
-			tty->driver->name, port->count);
+			tty->driver->name, atomic_read(&port->count));
 }
 
 /* Wait until the transmitter is empty.
@@ -2500,7 +2500,7 @@ static int mgslpc_open(struct tty_struct *tty, struct file * filp)
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):mgslpc_open(%s), old ref count = %d\n",
-			 __FILE__, __LINE__, tty->driver->name, port->count);
+			 __FILE__, __LINE__, tty->driver->name, atomic_read(&port->count));
 
 	port->low_latency = (port->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
 
@@ -2511,11 +2511,11 @@ static int mgslpc_open(struct tty_struct *tty, struct file * filp)
 		goto cleanup;
 	}
 	spin_lock(&port->lock);
-	port->count++;
+	atomic_inc(&port->count);
 	spin_unlock(&port->lock);
 	spin_unlock_irqrestore(&info->netlock, flags);
 
-	if (port->count == 1) {
+	if (atomic_read(&port->count) == 1) {
 		/* 1st open on this device, init hardware */
 		retval = startup(info, tty);
 		if (retval < 0)
@@ -3904,7 +3904,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
 	unsigned short new_crctype;
 
 	/* return error if TTY interface open */
-	if (info->port.count)
+	if (atomic_read(&info->port.count))
 		return -EBUSY;
 
 	switch (encoding)
@@ -4008,7 +4008,7 @@ static int hdlcdev_open(struct net_device *dev)
 
 	/* arbitrate between network and tty opens */
 	spin_lock_irqsave(&info->netlock, flags);
-	if (info->port.count != 0 || info->netcount != 0) {
+	if (atomic_read(&info->port.count) != 0 || info->netcount != 0) {
 		printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
 		spin_unlock_irqrestore(&info->netlock, flags);
 		return -EBUSY;
@@ -4098,7 +4098,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 		printk("%s:hdlcdev_ioctl(%s)\n", __FILE__, dev->name);
 
 	/* return error if TTY interface open */
-	if (info->port.count)
+	if (atomic_read(&info->port.count))
 		return -EBUSY;
 
 	if (cmd != SIOCWANDEV)
diff --git a/drivers/char/random.c b/drivers/char/random.c
index b583e53..f3bb4ac 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -289,9 +289,6 @@
 /*
  * To allow fractional bits to be tracked, the entropy_count field is
  * denominated in units of 1/8th bits.
- *
- * 2*(ENTROPY_SHIFT + log2(poolbits)) must <= 31, or the multiply in
- * credit_entropy_bits() needs to be 64 bits wide.
  */
 #define ENTROPY_SHIFT 3
 #define ENTROPY_BITS(r) ((r)->entropy_count >> ENTROPY_SHIFT)
@@ -442,9 +439,9 @@ struct entropy_store {
 };
 
 static void push_to_pool(struct work_struct *work);
-static __u32 input_pool_data[INPUT_POOL_WORDS];
-static __u32 blocking_pool_data[OUTPUT_POOL_WORDS];
-static __u32 nonblocking_pool_data[OUTPUT_POOL_WORDS];
+static __u32 input_pool_data[INPUT_POOL_WORDS] __latent_entropy;
+static __u32 blocking_pool_data[OUTPUT_POOL_WORDS] __latent_entropy;
+static __u32 nonblocking_pool_data[OUTPUT_POOL_WORDS] __latent_entropy;
 
 static struct entropy_store input_pool = {
 	.poolinfo = &poolinfo_table[0],
@@ -654,7 +651,7 @@ retry:
 		/* The +2 corresponds to the /4 in the denominator */
 
 		do {
-			unsigned int anfrac = min(pnfrac, pool_size/2);
+			u64 anfrac = min(pnfrac, pool_size/2);
 			unsigned int add =
 				((pool_size - entropy_count)*anfrac*3) >> s;
 
@@ -1227,7 +1224,7 @@ static ssize_t extract_entropy_user(struct entropy_store *r, void __user *buf,
 
 		extract_buf(r, tmp);
 		i = min_t(int, nbytes, EXTRACT_SIZE);
-		if (copy_to_user(buf, tmp, i)) {
+		if (i > sizeof(tmp) || copy_to_user(buf, tmp, i)) {
 			ret = -EFAULT;
 			break;
 		}
@@ -1668,7 +1665,7 @@ static char sysctl_bootid[16];
 static int proc_do_uuid(struct ctl_table *table, int write,
 			void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	struct ctl_table fake_table;
+	ctl_table_no_const fake_table;
 	unsigned char buf[64], tmp_uuid[16], *uuid;
 
 	uuid = table->data;
@@ -1698,7 +1695,7 @@ static int proc_do_uuid(struct ctl_table *table, int write,
 static int proc_do_entropy(struct ctl_table *table, int write,
 			   void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	struct ctl_table fake_table;
+	ctl_table_no_const fake_table;
 	int entropy_count;
 
 	entropy_count = *(int *)table->data >> ENTROPY_SHIFT;
diff --git a/drivers/char/sonypi.c b/drivers/char/sonypi.c
index e496dae..3db53b6 100644
--- a/drivers/char/sonypi.c
+++ b/drivers/char/sonypi.c
@@ -54,6 +54,7 @@
 
 #include <asm/uaccess.h>
 #include <asm/io.h>
+#include <asm/local.h>
 
 #include <linux/sonypi.h>
 
@@ -490,7 +491,7 @@ static struct sonypi_device {
 	spinlock_t fifo_lock;
 	wait_queue_head_t fifo_proc_list;
 	struct fasync_struct *fifo_async;
-	int open_count;
+	local_t open_count;
 	int model;
 	struct input_dev *input_jog_dev;
 	struct input_dev *input_key_dev;
@@ -892,7 +893,7 @@ static int sonypi_misc_fasync(int fd, struct file *filp, int on)
 static int sonypi_misc_release(struct inode *inode, struct file *file)
 {
 	mutex_lock(&sonypi_device.lock);
-	sonypi_device.open_count--;
+	local_dec(&sonypi_device.open_count);
 	mutex_unlock(&sonypi_device.lock);
 	return 0;
 }
@@ -901,9 +902,9 @@ static int sonypi_misc_open(struct inode *inode, struct file *file)
 {
 	mutex_lock(&sonypi_device.lock);
 	/* Flush input queue on first open */
-	if (!sonypi_device.open_count)
+	if (!local_read(&sonypi_device.open_count))
 		kfifo_reset(&sonypi_device.fifo);
-	sonypi_device.open_count++;
+	local_inc(&sonypi_device.open_count);
 	mutex_unlock(&sonypi_device.lock);
 
 	return 0;
@@ -1491,7 +1492,7 @@ static struct platform_driver sonypi_driver = {
 
 static struct platform_device *sonypi_platform_device;
 
-static struct dmi_system_id __initdata sonypi_dmi_table[] = {
+static const struct dmi_system_id __initconst sonypi_dmi_table[] = {
 	{
 		.ident = "Sony Vaio",
 		.matches = {
diff --git a/drivers/char/tpm/tpm-chip.c b/drivers/char/tpm/tpm-chip.c
index 274dd01..ac863b7 100644
--- a/drivers/char/tpm/tpm-chip.c
+++ b/drivers/char/tpm/tpm-chip.c
@@ -74,6 +74,11 @@ static void tpm_dev_release(struct device *dev)
 	kfree(chip);
 }
 
+static void tpm_put_device(void *dev)
+{
+	put_device(dev);
+}
+
 /**
  * tpmm_chip_alloc() - allocate a new struct tpm_chip instance
  * @dev: device to which the chip is associated
@@ -137,7 +142,7 @@ struct tpm_chip *tpmm_chip_alloc(struct device *dev,
 	chip->cdev.owner = chip->pdev->driver->owner;
 	chip->cdev.kobj.parent = &chip->dev.kobj;
 
-	rc = devm_add_action(dev, (void (*)(void *)) put_device, &chip->dev);
+	rc = devm_add_action(dev, tpm_put_device, &chip->dev);
 	if (rc) {
 		put_device(&chip->dev);
 		return ERR_PTR(rc);
diff --git a/drivers/char/tpm/tpm_acpi.c b/drivers/char/tpm/tpm_acpi.c
index 565a947..dcdc06e 100644
--- a/drivers/char/tpm/tpm_acpi.c
+++ b/drivers/char/tpm/tpm_acpi.c
@@ -98,11 +98,12 @@ int read_log(struct tpm_bios_log *log)
 	virt = acpi_os_map_iomem(start, len);
 	if (!virt) {
 		kfree(log->bios_event_log);
+		log->bios_event_log = NULL;
 		printk("%s: ERROR - Unable to map memory\n", __func__);
 		return -EIO;
 	}
 
-	memcpy_fromio(log->bios_event_log, virt, len);
+	memcpy_fromio(log->bios_event_log, (const char __force_kernel *)virt, len);
 
 	acpi_os_unmap_iomem(virt, len);
 	return 0;
diff --git a/drivers/char/tpm/tpm_eventlog.c b/drivers/char/tpm/tpm_eventlog.c
index 4e6940a..fc08428 100644
--- a/drivers/char/tpm/tpm_eventlog.c
+++ b/drivers/char/tpm/tpm_eventlog.c
@@ -108,8 +108,7 @@ static void *tpm_bios_measurements_start(struct seq_file *m, loff_t *pos)
 	converted_event_type = do_endian_conversion(event->event_type);
 
 	if (((converted_event_type == 0) && (converted_event_size == 0))
-	    || ((addr + sizeof(struct tcpa_event) + converted_event_size)
-		>= limit))
+	    || (converted_event_size >= limit - addr - sizeof(struct tcpa_event)))
 		return NULL;
 
 	return addr;
@@ -138,7 +137,7 @@ static void *tpm_bios_measurements_next(struct seq_file *m, void *v,
 	converted_event_type = do_endian_conversion(event->event_type);
 
 	if (((converted_event_type == 0) && (converted_event_size == 0)) ||
-	    ((v + sizeof(struct tcpa_event) + converted_event_size) >= limit))
+	    (converted_event_size >= limit - v - sizeof(struct tcpa_event)))
 		return NULL;
 
 	(*pos)++;
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index d2406fe..473a5c0 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -685,11 +685,11 @@ static ssize_t fill_readbuf(struct port *port, char __user *out_buf,
 	if (to_user) {
 		ssize_t ret;
 
-		ret = copy_to_user(out_buf, buf->buf + buf->offset, out_count);
+		ret = copy_to_user((char __force_user *)out_buf, buf->buf + buf->offset, out_count);
 		if (ret)
 			return -EFAULT;
 	} else {
-		memcpy((__force char *)out_buf, buf->buf + buf->offset,
+		memcpy((__force_kernel char *)out_buf, buf->buf + buf->offset,
 		       out_count);
 	}
 
@@ -1164,7 +1164,7 @@ static int get_chars(u32 vtermno, char *buf, int count)
 	/* If we don't have an input queue yet, we can't get input. */
 	BUG_ON(!port->in_vq);
 
-	return fill_readbuf(port, (__force char __user *)buf, count, false);
+	return fill_readbuf(port, (char __force_user *)buf, count, false);
 }
 
 static void resize_console(struct port *port)
diff --git a/drivers/clk/clk-composite.c b/drivers/clk/clk-composite.c
index 1f903e1f8..5f1b4cb 100644
--- a/drivers/clk/clk-composite.c
+++ b/drivers/clk/clk-composite.c
@@ -194,7 +194,7 @@ struct clk *clk_register_composite(struct device *dev, const char *name,
 	struct clk *clk;
 	struct clk_init_data init;
 	struct clk_composite *composite;
-	struct clk_ops *clk_composite_ops;
+	clk_ops_no_const *clk_composite_ops;
 
 	composite = kzalloc(sizeof(*composite), GFP_KERNEL);
 	if (!composite)
diff --git a/drivers/clk/samsung/clk.h b/drivers/clk/samsung/clk.h
index aa872d2..afeae37 100644
--- a/drivers/clk/samsung/clk.h
+++ b/drivers/clk/samsung/clk.h
@@ -261,7 +261,7 @@ struct samsung_gate_clock {
 #define GATE_DA(_id, dname, cname, pname, o, b, f, gf, a)	\
 	__GATE(_id, dname, cname, pname, o, b, f, gf, a)
 
-#define PNAME(x) static const char *x[] __initdata
+#define PNAME(x) static const char * const x[] __initconst
 
 /**
  * struct samsung_clk_reg_dump: register dump of clock controller registers.
diff --git a/drivers/clk/socfpga/clk-gate-a10.c b/drivers/clk/socfpga/clk-gate-a10.c
index c2d5727..1a305db 100644
--- a/drivers/clk/socfpga/clk-gate-a10.c
+++ b/drivers/clk/socfpga/clk-gate-a10.c
@@ -19,6 +19,7 @@
 #include <linux/mfd/syscon.h>
 #include <linux/of.h>
 #include <linux/regmap.h>
+#include <asm/pgtable.h>
 
 #include "clk.h"
 
@@ -97,7 +98,7 @@ static int socfpga_clk_prepare(struct clk_hw *hwclk)
 	return 0;
 }
 
-static struct clk_ops gateclk_ops = {
+static clk_ops_no_const gateclk_ops __read_only = {
 	.prepare = socfpga_clk_prepare,
 	.recalc_rate = socfpga_gate_clk_recalc_rate,
 };
@@ -128,8 +129,10 @@ static void __init __socfpga_gate_init(struct device_node *node,
 		socfpga_clk->hw.reg = clk_mgr_a10_base_addr + clk_gate[0];
 		socfpga_clk->hw.bit_idx = clk_gate[1];
 
-		gateclk_ops.enable = clk_gate_ops.enable;
-		gateclk_ops.disable = clk_gate_ops.disable;
+		pax_open_kernel();
+		const_cast(gateclk_ops.enable) = clk_gate_ops.enable;
+		const_cast(gateclk_ops.disable) = clk_gate_ops.disable;
+		pax_close_kernel();
 	}
 
 	rc = of_property_read_u32(node, "fixed-divider", &fixed_div);
diff --git a/drivers/clk/socfpga/clk-gate.c b/drivers/clk/socfpga/clk-gate.c
index aa7a6e6..1e9b426 100644
--- a/drivers/clk/socfpga/clk-gate.c
+++ b/drivers/clk/socfpga/clk-gate.c
@@ -21,6 +21,7 @@
 #include <linux/mfd/syscon.h>
 #include <linux/of.h>
 #include <linux/regmap.h>
+#include <asm/pgtable.h>
 
 #include "clk.h"
 
@@ -169,7 +170,7 @@ static int socfpga_clk_prepare(struct clk_hw *hwclk)
 	return 0;
 }
 
-static struct clk_ops gateclk_ops = {
+static clk_ops_no_const gateclk_ops __read_only = {
 	.prepare = socfpga_clk_prepare,
 	.recalc_rate = socfpga_clk_recalc_rate,
 	.get_parent = socfpga_clk_get_parent,
@@ -202,8 +203,10 @@ static void __init __socfpga_gate_init(struct device_node *node,
 		socfpga_clk->hw.reg = clk_mgr_base_addr + clk_gate[0];
 		socfpga_clk->hw.bit_idx = clk_gate[1];
 
-		gateclk_ops.enable = clk_gate_ops.enable;
-		gateclk_ops.disable = clk_gate_ops.disable;
+		pax_open_kernel();
+		const_cast(gateclk_ops.enable) = clk_gate_ops.enable;
+		const_cast(gateclk_ops.disable) = clk_gate_ops.disable;
+		pax_close_kernel();
 	}
 
 	rc = of_property_read_u32(node, "fixed-divider", &fixed_div);
diff --git a/drivers/clk/socfpga/clk-pll-a10.c b/drivers/clk/socfpga/clk-pll-a10.c
index 35fabe1..d847c53 100644
--- a/drivers/clk/socfpga/clk-pll-a10.c
+++ b/drivers/clk/socfpga/clk-pll-a10.c
@@ -18,6 +18,7 @@
 #include <linux/io.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
+#include <asm/pgtable.h>
 
 #include "clk.h"
 
@@ -69,7 +70,7 @@ static u8 clk_pll_get_parent(struct clk_hw *hwclk)
 		CLK_MGR_PLL_CLK_SRC_MASK;
 }
 
-static struct clk_ops clk_pll_ops = {
+static clk_ops_no_const clk_pll_ops __read_only = {
 	.recalc_rate = clk_pll_recalc_rate,
 	.get_parent = clk_pll_get_parent,
 };
@@ -112,8 +113,10 @@ static struct clk * __init __socfpga_pll_init(struct device_node *node,
 	pll_clk->hw.hw.init = &init;
 
 	pll_clk->hw.bit_idx = SOCFPGA_PLL_EXT_ENA;
-	clk_pll_ops.enable = clk_gate_ops.enable;
-	clk_pll_ops.disable = clk_gate_ops.disable;
+	pax_open_kernel();
+	const_cast(clk_pll_ops.enable) = clk_gate_ops.enable;
+	const_cast(clk_pll_ops.disable) = clk_gate_ops.disable;
+	pax_close_kernel();
 
 	clk = clk_register(NULL, &pll_clk->hw.hw);
 	if (WARN_ON(IS_ERR(clk))) {
diff --git a/drivers/clk/socfpga/clk-pll.c b/drivers/clk/socfpga/clk-pll.c
index c7f4631..8d1b7d0 100644
--- a/drivers/clk/socfpga/clk-pll.c
+++ b/drivers/clk/socfpga/clk-pll.c
@@ -20,6 +20,7 @@
 #include <linux/io.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
+#include <asm/pgtable.h>
 
 #include "clk.h"
 
@@ -75,7 +76,7 @@ static u8 clk_pll_get_parent(struct clk_hw *hwclk)
 			CLK_MGR_PLL_CLK_SRC_MASK;
 }
 
-static struct clk_ops clk_pll_ops = {
+static clk_ops_no_const clk_pll_ops __read_only = {
 	.recalc_rate = clk_pll_recalc_rate,
 	.get_parent = clk_pll_get_parent,
 };
@@ -114,8 +115,10 @@ static __init struct clk *__socfpga_pll_init(struct device_node *node,
 	pll_clk->hw.hw.init = &init;
 
 	pll_clk->hw.bit_idx = SOCFPGA_PLL_EXT_ENA;
-	clk_pll_ops.enable = clk_gate_ops.enable;
-	clk_pll_ops.disable = clk_gate_ops.disable;
+	pax_open_kernel();
+	const_cast(clk_pll_ops.enable) = clk_gate_ops.enable;
+	const_cast(clk_pll_ops.disable) = clk_gate_ops.disable;
+	pax_close_kernel();
 
 	clk = clk_register(NULL, &pll_clk->hw.hw);
 	if (WARN_ON(IS_ERR(clk))) {
diff --git a/drivers/clk/ti/adpll.c b/drivers/clk/ti/adpll.c
index 255cafb..7b41c3b 100644
--- a/drivers/clk/ti/adpll.c
+++ b/drivers/clk/ti/adpll.c
@@ -589,7 +589,7 @@ static int ti_adpll_init_clkout(struct ti_adpll_data *d,
 {
 	struct ti_adpll_clkout_data *co;
 	struct clk_init_data init;
-	struct clk_ops *ops;
+	clk_ops_no_const *ops;
 	const char *parent_names[2];
 	const char *child_name;
 	struct clk *clock;
diff --git a/drivers/clk/ti/clk.c b/drivers/clk/ti/clk.c
index 5fcf247..446780a 100644
--- a/drivers/clk/ti/clk.c
+++ b/drivers/clk/ti/clk.c
@@ -25,6 +25,8 @@
 #include <linux/regmap.h>
 #include <linux/bootmem.h>
 
+#include <asm/pgtable.h>
+
 #include "clock.h"
 
 #undef pr_fmt
@@ -84,8 +86,10 @@ int ti_clk_setup_ll_ops(struct ti_clk_ll_ops *ops)
 	}
 
 	ti_clk_ll_ops = ops;
-	ops->clk_readl = clk_memmap_readl;
-	ops->clk_writel = clk_memmap_writel;
+	pax_open_kernel();
+	const_cast(ops->clk_readl) = clk_memmap_readl;
+	const_cast(ops->clk_writel) = clk_memmap_writel;
+	pax_close_kernel();
 
 	return 0;
 }
diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index fb57121..ff57f22 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -658,8 +658,11 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
 	data->acpi_perf_cpu = cpu;
 	policy->driver_data = data;
 
-	if (cpu_has(c, X86_FEATURE_CONSTANT_TSC))
-		acpi_cpufreq_driver.flags |= CPUFREQ_CONST_LOOPS;
+	if (cpu_has(c, X86_FEATURE_CONSTANT_TSC)) {
+		pax_open_kernel();
+		const_cast(acpi_cpufreq_driver.flags) |= CPUFREQ_CONST_LOOPS;
+		pax_close_kernel();
+	}
 
 	result = acpi_processor_register_performance(perf, cpu);
 	if (result)
@@ -798,7 +801,9 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
 		policy->cur = acpi_cpufreq_guess_freq(data, policy->cpu);
 		break;
 	case ACPI_ADR_SPACE_FIXED_HARDWARE:
-		acpi_cpufreq_driver.get = get_cur_freq_on_cpu;
+		pax_open_kernel();
+		const_cast(acpi_cpufreq_driver.get) = get_cur_freq_on_cpu;
+		pax_close_kernel();
 		break;
 	default:
 		break;
@@ -892,8 +897,10 @@ static void __init acpi_cpufreq_boost_init(void)
 		if (!msrs)
 			return;
 
-		acpi_cpufreq_driver.set_boost = set_boost;
-		acpi_cpufreq_driver.boost_enabled = boost_state(0);
+		pax_open_kernel();
+		const_cast(acpi_cpufreq_driver.set_boost) = set_boost;
+		const_cast(acpi_cpufreq_driver.boost_enabled) = boost_state(0);
+		pax_close_kernel();
 
 		cpu_notifier_register_begin();
 
diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
index 5f8dbe6..57754e5 100644
--- a/drivers/cpufreq/cpufreq-dt.c
+++ b/drivers/cpufreq/cpufreq-dt.c
@@ -368,7 +368,9 @@ static int dt_cpufreq_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	dt_cpufreq_driver.driver_data = dev_get_platdata(&pdev->dev);
+	pax_open_kernel();
+	const_cast(dt_cpufreq_driver.driver_data) = dev_get_platdata(&pdev->dev);
+	pax_close_kernel();
 
 	ret = cpufreq_register_driver(&dt_cpufreq_driver);
 	if (ret)
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index c4acfc5..95ed094 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -434,12 +434,12 @@ EXPORT_SYMBOL_GPL(cpufreq_freq_transition_end);
  *                          SYSFS INTERFACE                          *
  *********************************************************************/
 static ssize_t show_boost(struct kobject *kobj,
-				 struct attribute *attr, char *buf)
+				 struct kobj_attribute *attr, char *buf)
 {
 	return sprintf(buf, "%d\n", cpufreq_driver->boost_enabled);
 }
 
-static ssize_t store_boost(struct kobject *kobj, struct attribute *attr,
+static ssize_t store_boost(struct kobject *kobj, struct kobj_attribute *attr,
 				  const char *buf, size_t count)
 {
 	int ret, enable;
@@ -1999,7 +1999,7 @@ void cpufreq_unregister_governor(struct cpufreq_governor *governor)
 	read_unlock_irqrestore(&cpufreq_driver_lock, flags);
 
 	mutex_lock(&cpufreq_governor_mutex);
-	list_del(&governor->governor_list);
+	pax_list_del(&governor->governor_list);
 	mutex_unlock(&cpufreq_governor_mutex);
 	return;
 }
@@ -2207,7 +2207,7 @@ static int cpufreq_cpu_callback(struct notifier_block *nfb,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __refdata cpufreq_cpu_notifier = {
+static struct notifier_block cpufreq_cpu_notifier = {
 	.notifier_call = cpufreq_cpu_callback,
 };
 
@@ -2250,13 +2250,17 @@ int cpufreq_boost_trigger_state(int state)
 		return 0;
 
 	write_lock_irqsave(&cpufreq_driver_lock, flags);
-	cpufreq_driver->boost_enabled = state;
+	pax_open_kernel();
+	const_cast(cpufreq_driver->boost_enabled) = state;
+	pax_close_kernel();
 	write_unlock_irqrestore(&cpufreq_driver_lock, flags);
 
 	ret = cpufreq_driver->set_boost(state);
 	if (ret) {
 		write_lock_irqsave(&cpufreq_driver_lock, flags);
-		cpufreq_driver->boost_enabled = !state;
+		pax_open_kernel();
+		const_cast(cpufreq_driver->boost_enabled) = !state;
+		pax_close_kernel();
 		write_unlock_irqrestore(&cpufreq_driver_lock, flags);
 
 		pr_err("%s: Cannot %s BOOST\n",
@@ -2297,7 +2301,9 @@ int cpufreq_enable_boost_support(void)
 	if (cpufreq_boost_supported())
 		return 0;
 
-	cpufreq_driver->set_boost = cpufreq_boost_set_sw;
+	pax_open_kernel();
+	const_cast(cpufreq_driver->set_boost) = cpufreq_boost_set_sw;
+	pax_close_kernel();
 
 	/* This will get removed on driver unregister */
 	return create_boost_sysfs_file();
@@ -2354,8 +2360,11 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data)
 	cpufreq_driver = driver_data;
 	write_unlock_irqrestore(&cpufreq_driver_lock, flags);
 
-	if (driver_data->setpolicy)
-		driver_data->flags |= CPUFREQ_CONST_LOOPS;
+	if (driver_data->setpolicy) {
+		pax_open_kernel();
+		const_cast(driver_data->flags) |= CPUFREQ_CONST_LOOPS;
+		pax_close_kernel();
+	}
 
 	if (cpufreq_boost_supported()) {
 		ret = create_boost_sysfs_file();
diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h
index 61ff82f..ccc29a1 100644
--- a/drivers/cpufreq/cpufreq_governor.h
+++ b/drivers/cpufreq/cpufreq_governor.h
@@ -176,7 +176,7 @@ static inline struct dbs_governor *dbs_governor_of(struct cpufreq_policy *policy
 struct od_ops {
 	unsigned int (*powersave_bias_target)(struct cpufreq_policy *policy,
 			unsigned int freq_next, unsigned int relation);
-};
+} __no_const;
 
 unsigned int dbs_update(struct cpufreq_policy *policy);
 int cpufreq_governor_dbs(struct cpufreq_policy *policy, unsigned int event);
diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index acd8027..1d206c6 100644
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -410,7 +410,7 @@ static void od_start(struct cpufreq_policy *policy)
 	ondemand_powersave_bias_init(policy);
 }
 
-static struct od_ops od_ops = {
+static struct od_ops od_ops __read_only = {
 	.powersave_bias_target = generic_powersave_bias_target,
 };
 
@@ -471,14 +471,18 @@ void od_register_powersave_bias_handler(unsigned int (*f)
 		(struct cpufreq_policy *, unsigned int, unsigned int),
 		unsigned int powersave_bias)
 {
-	od_ops.powersave_bias_target = f;
+	pax_open_kernel();
+	const_cast(od_ops.powersave_bias_target) = f;
+	pax_close_kernel();
 	od_set_powersave_bias(powersave_bias);
 }
 EXPORT_SYMBOL_GPL(od_register_powersave_bias_handler);
 
 void od_unregister_powersave_bias_handler(void)
 {
-	od_ops.powersave_bias_target = generic_powersave_bias_target;
+	pax_open_kernel();
+	const_cast(od_ops.powersave_bias_target) = generic_powersave_bias_target;
+	pax_close_kernel();
 	od_set_powersave_bias(0);
 }
 EXPORT_SYMBOL_GPL(od_unregister_powersave_bias_handler);
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index b230eba..aeb6923 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -249,13 +249,13 @@ struct pstate_funcs {
 struct cpu_defaults {
 	struct pstate_adjust_policy pid_policy;
 	struct pstate_funcs funcs;
-};
+} __do_const;
 
 static inline int32_t get_target_pstate_use_performance(struct cpudata *cpu);
 static inline int32_t get_target_pstate_use_cpu_load(struct cpudata *cpu);
 
 static struct pstate_adjust_policy pid_params;
-static struct pstate_funcs pstate_funcs;
+static struct pstate_funcs *pstate_funcs;
 static int hwp_active;
 
 
@@ -521,13 +521,13 @@ static void __init intel_pstate_debug_expose_params(void)
 /************************** sysfs begin ************************/
 #define show_one(file_name, object)					\
 	static ssize_t show_##file_name					\
-	(struct kobject *kobj, struct attribute *attr, char *buf)	\
+	(struct kobject *kobj, struct kobj_attribute *attr, char *buf)	\
 	{								\
 		return sprintf(buf, "%u\n", limits->object);		\
 	}
 
 static ssize_t show_turbo_pct(struct kobject *kobj,
-				struct attribute *attr, char *buf)
+				struct kobj_attribute *attr, char *buf)
 {
 	struct cpudata *cpu;
 	int total, no_turbo, turbo_pct;
@@ -543,7 +543,7 @@ static ssize_t show_turbo_pct(struct kobject *kobj,
 }
 
 static ssize_t show_num_pstates(struct kobject *kobj,
-				struct attribute *attr, char *buf)
+				struct kobj_attribute *attr, char *buf)
 {
 	struct cpudata *cpu;
 	int total;
@@ -554,7 +554,7 @@ static ssize_t show_num_pstates(struct kobject *kobj,
 }
 
 static ssize_t show_no_turbo(struct kobject *kobj,
-			     struct attribute *attr, char *buf)
+			     struct kobj_attribute *attr, char *buf)
 {
 	ssize_t ret;
 
@@ -567,7 +567,7 @@ static ssize_t show_no_turbo(struct kobject *kobj,
 	return ret;
 }
 
-static ssize_t store_no_turbo(struct kobject *a, struct attribute *b,
+static ssize_t store_no_turbo(struct kobject *a, struct kobj_attribute *b,
 			      const char *buf, size_t count)
 {
 	unsigned int input;
@@ -591,7 +591,7 @@ static ssize_t store_no_turbo(struct kobject *a, struct attribute *b,
 	return count;
 }
 
-static ssize_t store_max_perf_pct(struct kobject *a, struct attribute *b,
+static ssize_t store_max_perf_pct(struct kobject *a, struct kobj_attribute *b,
 				  const char *buf, size_t count)
 {
 	unsigned int input;
@@ -616,7 +616,7 @@ static ssize_t store_max_perf_pct(struct kobject *a, struct attribute *b,
 	return count;
 }
 
-static ssize_t store_min_perf_pct(struct kobject *a, struct attribute *b,
+static ssize_t store_min_perf_pct(struct kobject *a, struct kobj_attribute *b,
 				  const char *buf, size_t count)
 {
 	unsigned int input;
@@ -1002,19 +1002,19 @@ static void intel_pstate_set_min_pstate(struct cpudata *cpu)
 	 * right CPU.
 	 */
 	wrmsrl_on_cpu(cpu->cpu, MSR_IA32_PERF_CTL,
-		      pstate_funcs.get_val(cpu, pstate));
+		      pstate_funcs->get_val(cpu, pstate));
 }
 
 static void intel_pstate_get_cpu_pstates(struct cpudata *cpu)
 {
-	cpu->pstate.min_pstate = pstate_funcs.get_min();
-	cpu->pstate.max_pstate = pstate_funcs.get_max();
-	cpu->pstate.max_pstate_physical = pstate_funcs.get_max_physical();
-	cpu->pstate.turbo_pstate = pstate_funcs.get_turbo();
-	cpu->pstate.scaling = pstate_funcs.get_scaling();
+	cpu->pstate.min_pstate = pstate_funcs->get_min();
+	cpu->pstate.max_pstate = pstate_funcs->get_max();
+	cpu->pstate.max_pstate_physical = pstate_funcs->get_max_physical();
+	cpu->pstate.turbo_pstate = pstate_funcs->get_turbo();
+	cpu->pstate.scaling = pstate_funcs->get_scaling();
 
-	if (pstate_funcs.get_vid)
-		pstate_funcs.get_vid(cpu);
+	if (pstate_funcs->get_vid)
+		pstate_funcs->get_vid(cpu);
 
 	intel_pstate_set_min_pstate(cpu);
 }
@@ -1164,7 +1164,7 @@ static inline void intel_pstate_update_pstate(struct cpudata *cpu, int pstate)
 		return;
 
 	intel_pstate_record_pstate(cpu, pstate);
-	wrmsrl(MSR_IA32_PERF_CTL, pstate_funcs.get_val(cpu, pstate));
+	wrmsrl(MSR_IA32_PERF_CTL, pstate_funcs->get_val(cpu, pstate));
 }
 
 static inline void intel_pstate_adjust_busy_pstate(struct cpudata *cpu)
@@ -1174,7 +1174,7 @@ static inline void intel_pstate_adjust_busy_pstate(struct cpudata *cpu)
 
 	from = cpu->pstate.current_pstate;
 
-	target_pstate = pstate_funcs.get_target_pstate(cpu);
+	target_pstate = pstate_funcs->get_target_pstate(cpu);
 
 	intel_pstate_update_pstate(cpu, target_pstate);
 
@@ -1434,15 +1434,15 @@ static unsigned int force_load;
 
 static int intel_pstate_msrs_not_valid(void)
 {
-	if (!pstate_funcs.get_max() ||
-	    !pstate_funcs.get_min() ||
-	    !pstate_funcs.get_turbo())
+	if (!pstate_funcs->get_max() ||
+	    !pstate_funcs->get_min() ||
+	    !pstate_funcs->get_turbo())
 		return -ENODEV;
 
 	return 0;
 }
 
-static void copy_pid_params(struct pstate_adjust_policy *policy)
+static void copy_pid_params(const struct pstate_adjust_policy *policy)
 {
 	pid_params.sample_rate_ms = policy->sample_rate_ms;
 	pid_params.sample_rate_ns = pid_params.sample_rate_ms * NSEC_PER_MSEC;
@@ -1455,15 +1455,7 @@ static void copy_pid_params(struct pstate_adjust_policy *policy)
 
 static void copy_cpu_funcs(struct pstate_funcs *funcs)
 {
-	pstate_funcs.get_max   = funcs->get_max;
-	pstate_funcs.get_max_physical = funcs->get_max_physical;
-	pstate_funcs.get_min   = funcs->get_min;
-	pstate_funcs.get_turbo = funcs->get_turbo;
-	pstate_funcs.get_scaling = funcs->get_scaling;
-	pstate_funcs.get_val   = funcs->get_val;
-	pstate_funcs.get_vid   = funcs->get_vid;
-	pstate_funcs.get_target_pstate = funcs->get_target_pstate;
-
+	pstate_funcs = funcs;
 }
 
 #if IS_ENABLED(CONFIG_ACPI)
diff --git a/drivers/cpufreq/p4-clockmod.c b/drivers/cpufreq/p4-clockmod.c
index 5dd95da..ac41e5e 100644
--- a/drivers/cpufreq/p4-clockmod.c
+++ b/drivers/cpufreq/p4-clockmod.c
@@ -134,10 +134,14 @@ static unsigned int cpufreq_p4_get_frequency(struct cpuinfo_x86 *c)
 		case 0x0F: /* Core Duo */
 		case 0x16: /* Celeron Core */
 		case 0x1C: /* Atom */
-			p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
+			pax_open_kernel();
+			const_cast(p4clockmod_driver.flags) |= CPUFREQ_CONST_LOOPS;
+			pax_close_kernel();
 			return speedstep_get_frequency(SPEEDSTEP_CPU_PCORE);
 		case 0x0D: /* Pentium M (Dothan) */
-			p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
+			pax_open_kernel();
+			const_cast(p4clockmod_driver.flags) |= CPUFREQ_CONST_LOOPS;
+			pax_close_kernel();
 			/* fall through */
 		case 0x09: /* Pentium M (Banias) */
 			return speedstep_get_frequency(SPEEDSTEP_CPU_PM);
@@ -149,7 +153,9 @@ static unsigned int cpufreq_p4_get_frequency(struct cpuinfo_x86 *c)
 
 	/* on P-4s, the TSC runs with constant frequency independent whether
 	 * throttling is active or not. */
-	p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
+	pax_open_kernel();
+	const_cast(p4clockmod_driver.flags) |= CPUFREQ_CONST_LOOPS;
+	pax_close_kernel();
 
 	if (speedstep_detect_processor() == SPEEDSTEP_CPU_P4M) {
 		printk(KERN_WARNING PFX "Warning: Pentium 4-M detected. "
diff --git a/drivers/cpufreq/sparc-us3-cpufreq.c b/drivers/cpufreq/sparc-us3-cpufreq.c
index 9bb42ba..b01b4a2 100644
--- a/drivers/cpufreq/sparc-us3-cpufreq.c
+++ b/drivers/cpufreq/sparc-us3-cpufreq.c
@@ -18,14 +18,12 @@
 #include <asm/head.h>
 #include <asm/timer.h>
 
-static struct cpufreq_driver *cpufreq_us3_driver;
-
 struct us3_freq_percpu_info {
 	struct cpufreq_frequency_table table[4];
 };
 
 /* Indexed by cpu number. */
-static struct us3_freq_percpu_info *us3_freq_table;
+static struct us3_freq_percpu_info us3_freq_table[NR_CPUS];
 
 /* UltraSPARC-III has three dividers: 1, 2, and 32.  These are controlled
  * in the Safari config register.
@@ -156,16 +154,27 @@ static int __init us3_freq_cpu_init(struct cpufreq_policy *policy)
 
 static int us3_freq_cpu_exit(struct cpufreq_policy *policy)
 {
-	if (cpufreq_us3_driver)
-		us3_freq_target(policy, 0);
+	us3_freq_target(policy, 0);
 
 	return 0;
 }
 
+static int __init us3_freq_init(void);
+static void __exit us3_freq_exit(void);
+
+static struct cpufreq_driver cpufreq_us3_driver = {
+	.init		= us3_freq_cpu_init,
+	.verify		= cpufreq_generic_frequency_table_verify,
+	.target_index	= us3_freq_target,
+	.get		= us3_freq_get,
+	.exit		= us3_freq_cpu_exit,
+	.name		= "UltraSPARC-III",
+
+};
+
 static int __init us3_freq_init(void)
 {
 	unsigned long manuf, impl, ver;
-	int ret;
 
 	if (tlb_type != cheetah && tlb_type != cheetah_plus)
 		return -ENODEV;
@@ -178,55 +187,15 @@ static int __init us3_freq_init(void)
 	    (impl == CHEETAH_IMPL ||
 	     impl == CHEETAH_PLUS_IMPL ||
 	     impl == JAGUAR_IMPL ||
-	     impl == PANTHER_IMPL)) {
-		struct cpufreq_driver *driver;
-
-		ret = -ENOMEM;
-		driver = kzalloc(sizeof(*driver), GFP_KERNEL);
-		if (!driver)
-			goto err_out;
-
-		us3_freq_table = kzalloc((NR_CPUS * sizeof(*us3_freq_table)),
-			GFP_KERNEL);
-		if (!us3_freq_table)
-			goto err_out;
-
-		driver->init = us3_freq_cpu_init;
-		driver->verify = cpufreq_generic_frequency_table_verify;
-		driver->target_index = us3_freq_target;
-		driver->get = us3_freq_get;
-		driver->exit = us3_freq_cpu_exit;
-		strcpy(driver->name, "UltraSPARC-III");
-
-		cpufreq_us3_driver = driver;
-		ret = cpufreq_register_driver(driver);
-		if (ret)
-			goto err_out;
-
-		return 0;
-
-err_out:
-		if (driver) {
-			kfree(driver);
-			cpufreq_us3_driver = NULL;
-		}
-		kfree(us3_freq_table);
-		us3_freq_table = NULL;
-		return ret;
-	}
+	     impl == PANTHER_IMPL))
+		return cpufreq_register_driver(&cpufreq_us3_driver);
 
 	return -ENODEV;
 }
 
 static void __exit us3_freq_exit(void)
 {
-	if (cpufreq_us3_driver) {
-		cpufreq_unregister_driver(cpufreq_us3_driver);
-		kfree(cpufreq_us3_driver);
-		cpufreq_us3_driver = NULL;
-		kfree(us3_freq_table);
-		us3_freq_table = NULL;
-	}
+	cpufreq_unregister_driver(&cpufreq_us3_driver);
 }
 
 MODULE_AUTHOR("David S. Miller <davem@redhat.com>");
diff --git a/drivers/cpufreq/speedstep-centrino.c b/drivers/cpufreq/speedstep-centrino.c
index 7d4a315..ce41fb3 100644
--- a/drivers/cpufreq/speedstep-centrino.c
+++ b/drivers/cpufreq/speedstep-centrino.c
@@ -351,8 +351,11 @@ static int centrino_cpu_init(struct cpufreq_policy *policy)
 	    !cpu_has(cpu, X86_FEATURE_EST))
 		return -ENODEV;
 
-	if (cpu_has(cpu, X86_FEATURE_CONSTANT_TSC))
-		centrino_driver.flags |= CPUFREQ_CONST_LOOPS;
+	if (cpu_has(cpu, X86_FEATURE_CONSTANT_TSC)) {
+		pax_open_kernel();
+		const_cast(centrino_driver.flags) |= CPUFREQ_CONST_LOOPS;
+		pax_close_kernel();
+	}
 
 	if (policy->cpu != 0)
 		return -ENODEV;
diff --git a/drivers/cpuidle/driver.c b/drivers/cpuidle/driver.c
index 389ade4..e328b5ce 100644
--- a/drivers/cpuidle/driver.c
+++ b/drivers/cpuidle/driver.c
@@ -193,7 +193,7 @@ static int poll_idle(struct cpuidle_device *dev,
 
 static void poll_idle_init(struct cpuidle_driver *drv)
 {
-	struct cpuidle_state *state = &drv->states[0];
+	cpuidle_state_no_const *state = &drv->states[0];
 
 	snprintf(state->name, CPUIDLE_NAME_LEN, "POLL");
 	snprintf(state->desc, CPUIDLE_DESC_LEN, "CPUIDLE CORE POLL IDLE");
diff --git a/drivers/cpuidle/dt_idle_states.c b/drivers/cpuidle/dt_idle_states.c
index a5c111b..1113002 100644
--- a/drivers/cpuidle/dt_idle_states.c
+++ b/drivers/cpuidle/dt_idle_states.c
@@ -21,7 +21,7 @@
 
 #include "dt_idle_states.h"
 
-static int init_state_node(struct cpuidle_state *idle_state,
+static int init_state_node(cpuidle_state_no_const *idle_state,
 			   const struct of_device_id *matches,
 			   struct device_node *state_node)
 {
diff --git a/drivers/cpuidle/governor.c b/drivers/cpuidle/governor.c
index fb9f511..213e6cc 100644
--- a/drivers/cpuidle/governor.c
+++ b/drivers/cpuidle/governor.c
@@ -87,7 +87,7 @@ int cpuidle_register_governor(struct cpuidle_governor *gov)
 	mutex_lock(&cpuidle_lock);
 	if (__cpuidle_find_governor(gov->name) == NULL) {
 		ret = 0;
-		list_add_tail(&gov->governor_list, &cpuidle_governors);
+		pax_list_add_tail((struct list_head *)&gov->governor_list, &cpuidle_governors);
 		if (!cpuidle_curr_governor ||
 		    cpuidle_curr_governor->rating < gov->rating)
 			cpuidle_switch_governor(gov);
diff --git a/drivers/cpuidle/governors/ladder.c b/drivers/cpuidle/governors/ladder.c
index 63bd5a4..eea2dff 100644
--- a/drivers/cpuidle/governors/ladder.c
+++ b/drivers/cpuidle/governors/ladder.c
@@ -173,6 +173,15 @@ static void ladder_reflect(struct cpuidle_device *dev, int index)
 
 static struct cpuidle_governor ladder_governor = {
 	.name =		"ladder",
+	.rating =	25,
+	.enable =	ladder_enable_device,
+	.select =	ladder_select_state,
+	.reflect =	ladder_reflect,
+	.owner =	THIS_MODULE,
+};
+
+static struct cpuidle_governor ladder_governor_nohz = {
+	.name =		"ladder",
 	.rating =	10,
 	.enable =	ladder_enable_device,
 	.select =	ladder_select_state,
@@ -190,10 +199,8 @@ static int __init init_ladder(void)
 	 * governor is better so give it a higher rating than the menu
 	 * governor.
 	 */
-	if (!tick_nohz_enabled)
-		ladder_governor.rating = 25;
 
-	return cpuidle_register_governor(&ladder_governor);
+	return cpuidle_register_governor(tick_nohz_enabled ? &ladder_governor_nohz : &ladder_governor);
 }
 
 postcore_initcall(init_ladder);
diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c
index 832a2c3..1794080 100644
--- a/drivers/cpuidle/sysfs.c
+++ b/drivers/cpuidle/sysfs.c
@@ -135,7 +135,7 @@ static struct attribute *cpuidle_switch_attrs[] = {
 	NULL
 };
 
-static struct attribute_group cpuidle_attr_group = {
+static attribute_group_no_const cpuidle_attr_group = {
 	.attrs = cpuidle_default_attrs,
 	.name = "cpuidle",
 };
diff --git a/drivers/crypto/hifn_795x.c b/drivers/crypto/hifn_795x.c
index eee2c7e..268aa3e 100644
--- a/drivers/crypto/hifn_795x.c
+++ b/drivers/crypto/hifn_795x.c
@@ -37,7 +37,7 @@ module_param_string(hifn_pll_ref, hifn_pll_ref, sizeof(hifn_pll_ref), 0444);
 MODULE_PARM_DESC(hifn_pll_ref,
 		 "PLL reference clock (pci[freq] or ext[freq], default ext)");
 
-static atomic_t hifn_dev_number;
+static atomic_unchecked_t hifn_dev_number;
 
 #define ACRYPTO_OP_DECRYPT	0
 #define ACRYPTO_OP_ENCRYPT	1
@@ -2483,7 +2483,7 @@ static int hifn_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		goto err_out_disable_pci_device;
 
 	snprintf(name, sizeof(name), "hifn%d",
-			atomic_inc_return(&hifn_dev_number) - 1);
+			atomic_inc_return_unchecked(&hifn_dev_number) - 1);
 
 	err = pci_request_regions(pdev, name);
 	if (err)
diff --git a/drivers/crypto/qat/qat_common/adf_aer.c b/drivers/crypto/qat/qat_common/adf_aer.c
index b40d9c8..dcbcd94 100644
--- a/drivers/crypto/qat/qat_common/adf_aer.c
+++ b/drivers/crypto/qat/qat_common/adf_aer.c
@@ -56,7 +56,7 @@
 static struct workqueue_struct *device_reset_wq;
 
 static pci_ers_result_t adf_error_detected(struct pci_dev *pdev,
-					   pci_channel_state_t state)
+					   enum pci_channel_state state)
 {
 	struct adf_accel_dev *accel_dev = adf_devmgr_pci_to_accel_dev(pdev);
 
diff --git a/drivers/crypto/qat/qat_common/adf_sriov.c b/drivers/crypto/qat/qat_common/adf_sriov.c
index 38a0415..fc27277 100644
--- a/drivers/crypto/qat/qat_common/adf_sriov.c
+++ b/drivers/crypto/qat/qat_common/adf_sriov.c
@@ -93,7 +93,7 @@ static void adf_iov_send_resp(struct work_struct *work)
 	kfree(pf2vf_resp);
 }
 
-static void adf_vf2pf_bh_handler(void *data)
+static void adf_vf2pf_bh_handler(unsigned long data)
 {
 	struct adf_accel_vf_info *vf_info = (struct adf_accel_vf_info *)data;
 	struct adf_pf2vf_resp *pf2vf_resp;
@@ -126,7 +126,7 @@ static int adf_enable_sriov(struct adf_accel_dev *accel_dev)
 		vf_info->vf_nr = i;
 
 		tasklet_init(&vf_info->vf2pf_bh_tasklet,
-			     (void *)adf_vf2pf_bh_handler,
+			     adf_vf2pf_bh_handler,
 			     (unsigned long)vf_info);
 		mutex_init(&vf_info->pf2vf_lock);
 		ratelimit_state_init(&vf_info->vf2pf_ratelimit,
diff --git a/drivers/crypto/qat/qat_common/adf_vf_isr.c b/drivers/crypto/qat/qat_common/adf_vf_isr.c
index 09427b3..50f7306 100644
--- a/drivers/crypto/qat/qat_common/adf_vf_isr.c
+++ b/drivers/crypto/qat/qat_common/adf_vf_isr.c
@@ -90,9 +90,9 @@ static void adf_disable_msi(struct adf_accel_dev *accel_dev)
 	pci_disable_msi(pdev);
 }
 
-static void adf_pf2vf_bh_handler(void *data)
+static void adf_pf2vf_bh_handler(unsigned long data)
 {
-	struct adf_accel_dev *accel_dev = data;
+	struct adf_accel_dev *accel_dev = (struct adf_accel_dev *)data;
 	struct adf_hw_device_data *hw_data = accel_dev->hw_device;
 	struct adf_bar *pmisc =
 			&GET_BARS(accel_dev)[hw_data->get_misc_bar_id(hw_data)];
@@ -143,7 +143,7 @@ err:
 static int adf_setup_pf2vf_bh(struct adf_accel_dev *accel_dev)
 {
 	tasklet_init(&accel_dev->vf.pf2vf_bh_tasklet,
-		     (void *)adf_pf2vf_bh_handler, (unsigned long)accel_dev);
+		     adf_pf2vf_bh_handler, (unsigned long)accel_dev);
 
 	mutex_init(&accel_dev->vf.vf2pf_lock);
 	return 0;
diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index 984c5e9..c873659 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -717,7 +717,7 @@ int devfreq_add_governor(struct devfreq_governor *governor)
 		goto err_out;
 	}
 
-	list_add(&governor->node, &devfreq_governor_list);
+	pax_list_add((struct list_head *)&governor->node, &devfreq_governor_list);
 
 	list_for_each_entry(devfreq, &devfreq_list, node) {
 		int ret = 0;
@@ -805,7 +805,7 @@ int devfreq_remove_governor(struct devfreq_governor *governor)
 		}
 	}
 
-	list_del(&governor->node);
+	pax_list_del((struct list_head *)&governor->node);
 err_out:
 	mutex_unlock(&devfreq_list_lock);
 
diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
index 4a2c07e..8f4b1cc 100644
--- a/drivers/dma-buf/dma-buf.c
+++ b/drivers/dma-buf/dma-buf.c
@@ -880,10 +880,9 @@ static int dma_buf_describe(struct seq_file *s)
 
 static int dma_buf_show(struct seq_file *s, void *unused)
 {
-	void (*func)(struct seq_file *) = s->private;
+	int (*func)(struct seq_file *) = s->private;
 
-	func(s);
-	return 0;
+	return func(s);
 }
 
 static int dma_buf_debug_open(struct inode *inode, struct file *file)
diff --git a/drivers/dma/qcom/hidma_mgmt_sys.c b/drivers/dma/qcom/hidma_mgmt_sys.c
index d61f106..a23baa3 100644
--- a/drivers/dma/qcom/hidma_mgmt_sys.c
+++ b/drivers/dma/qcom/hidma_mgmt_sys.c
@@ -194,7 +194,7 @@ static ssize_t set_values_channel(struct kobject *kobj,
 
 static int create_sysfs_entry(struct hidma_mgmt_dev *dev, char *name, int mode)
 {
-	struct device_attribute *attrs;
+	device_attribute_no_const *attrs;
 	char *name_copy;
 
 	attrs = devm_kmalloc(&dev->pdev->dev,
diff --git a/drivers/dma/sh/shdma-base.c b/drivers/dma/sh/shdma-base.c
index 10fcaba..326f709 100644
--- a/drivers/dma/sh/shdma-base.c
+++ b/drivers/dma/sh/shdma-base.c
@@ -227,8 +227,8 @@ static int shdma_alloc_chan_resources(struct dma_chan *chan)
 		schan->slave_id = -EINVAL;
 	}
 
-	schan->desc = kcalloc(NR_DESCS_PER_CHANNEL,
-			      sdev->desc_size, GFP_KERNEL);
+	schan->desc = kcalloc(sdev->desc_size,
+			      NR_DESCS_PER_CHANNEL, GFP_KERNEL);
 	if (!schan->desc) {
 		ret = -ENOMEM;
 		goto edescalloc;
diff --git a/drivers/dma/sh/shdmac.c b/drivers/dma/sh/shdmac.c
index 80d8640..53f0508 100644
--- a/drivers/dma/sh/shdmac.c
+++ b/drivers/dma/sh/shdmac.c
@@ -513,7 +513,7 @@ static int sh_dmae_nmi_handler(struct notifier_block *self,
 	return ret;
 }
 
-static struct notifier_block sh_dmae_nmi_notifier __read_mostly = {
+static struct notifier_block sh_dmae_nmi_notifier = {
 	.notifier_call	= sh_dmae_nmi_handler,
 
 	/* Run before NMI debug handler and KGDB */
diff --git a/drivers/edac/edac_device.c b/drivers/edac/edac_device.c
index a979003..773b7f0 100644
--- a/drivers/edac/edac_device.c
+++ b/drivers/edac/edac_device.c
@@ -468,9 +468,9 @@ void edac_device_reset_delay_period(struct edac_device_ctl_info *edac_dev,
  */
 int edac_device_alloc_index(void)
 {
-	static atomic_t device_indexes = ATOMIC_INIT(0);
+	static atomic_unchecked_t device_indexes = ATOMIC_INIT(0);
 
-	return atomic_inc_return(&device_indexes) - 1;
+	return atomic_inc_return_unchecked(&device_indexes) - 1;
 }
 EXPORT_SYMBOL_GPL(edac_device_alloc_index);
 
diff --git a/drivers/edac/edac_device_sysfs.c b/drivers/edac/edac_device_sysfs.c
index 93da1a4..5e2c149 100644
--- a/drivers/edac/edac_device_sysfs.c
+++ b/drivers/edac/edac_device_sysfs.c
@@ -749,7 +749,7 @@ static int edac_device_add_main_sysfs_attributes(
 		 */
 		while (sysfs_attrib->attr.name != NULL) {
 			err = sysfs_create_file(&edac_dev->kobj,
-				(struct attribute*) sysfs_attrib);
+				&sysfs_attrib->attr);
 			if (err)
 				goto err_out;
 
diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c
index 26e65ab..9a1e25d 100644
--- a/drivers/edac/edac_mc_sysfs.c
+++ b/drivers/edac/edac_mc_sysfs.c
@@ -50,7 +50,7 @@ int edac_mc_get_poll_msec(void)
 	return edac_mc_poll_msec;
 }
 
-static int edac_set_poll_msec(const char *val, struct kernel_param *kp)
+static int edac_set_poll_msec(const char *val, const struct kernel_param *kp)
 {
 	unsigned long l;
 	int ret;
@@ -154,7 +154,7 @@ static const char * const edac_caps[] = {
 struct dev_ch_attribute {
 	struct device_attribute attr;
 	int channel;
-};
+} __do_const;
 
 #define DEVICE_CHANNEL(_name, _mode, _show, _store, _var) \
 	static struct dev_ch_attribute dev_attr_legacy_##_name = \
diff --git a/drivers/edac/edac_module.c b/drivers/edac/edac_module.c
index 5f8543b..46aa017 100644
--- a/drivers/edac/edac_module.c
+++ b/drivers/edac/edac_module.c
@@ -19,7 +19,7 @@
 
 #ifdef CONFIG_EDAC_DEBUG
 
-static int edac_set_debug_level(const char *buf, struct kernel_param *kp)
+static int edac_set_debug_level(const char *buf, const struct kernel_param *kp)
 {
 	unsigned long val;
 	int ret;
diff --git a/drivers/edac/edac_pci.c b/drivers/edac/edac_pci.c
index 8f2f289..cbb0d7c 100644
--- a/drivers/edac/edac_pci.c
+++ b/drivers/edac/edac_pci.c
@@ -29,7 +29,7 @@
 
 static DEFINE_MUTEX(edac_pci_ctls_mutex);
 static LIST_HEAD(edac_pci_list);
-static atomic_t pci_indexes = ATOMIC_INIT(0);
+static atomic_unchecked_t pci_indexes = ATOMIC_INIT(0);
 
 /*
  * edac_pci_alloc_ctl_info
@@ -224,7 +224,7 @@ static void edac_pci_workq_function(struct work_struct *work_req)
  */
 int edac_pci_alloc_index(void)
 {
-	return atomic_inc_return(&pci_indexes) - 1;
+	return atomic_inc_return_unchecked(&pci_indexes) - 1;
 }
 EXPORT_SYMBOL_GPL(edac_pci_alloc_index);
 
diff --git a/drivers/edac/edac_pci_sysfs.c b/drivers/edac/edac_pci_sysfs.c
index 6e3428b..9bdb207 100644
--- a/drivers/edac/edac_pci_sysfs.c
+++ b/drivers/edac/edac_pci_sysfs.c
@@ -23,8 +23,8 @@ static int edac_pci_log_pe = 1;		/* log PCI parity errors */
 static int edac_pci_log_npe = 1;	/* log PCI non-parity error errors */
 static int edac_pci_poll_msec = 1000;	/* one second workq period */
 
-static atomic_t pci_parity_count = ATOMIC_INIT(0);
-static atomic_t pci_nonparity_count = ATOMIC_INIT(0);
+static atomic_unchecked_t pci_parity_count = ATOMIC_INIT(0);
+static atomic_unchecked_t pci_nonparity_count = ATOMIC_INIT(0);
 
 static struct kobject *edac_pci_top_main_kobj;
 static atomic_t edac_pci_sysfs_refcount = ATOMIC_INIT(0);
@@ -232,7 +232,7 @@ struct edac_pci_dev_attribute {
 	void *value;
 	 ssize_t(*show) (void *, char *);
 	 ssize_t(*store) (void *, const char *, size_t);
-};
+} __do_const;
 
 /* Set of show/store abstract level functions for PCI Parity object */
 static ssize_t edac_pci_dev_show(struct kobject *kobj, struct attribute *attr,
@@ -564,7 +564,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
 			edac_printk(KERN_CRIT, EDAC_PCI,
 				"Signaled System Error on %s\n",
 				pci_name(dev));
-			atomic_inc(&pci_nonparity_count);
+			atomic_inc_unchecked(&pci_nonparity_count);
 		}
 
 		if (status & (PCI_STATUS_PARITY)) {
@@ -572,7 +572,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
 				"Master Data Parity Error on %s\n",
 				pci_name(dev));
 
-			atomic_inc(&pci_parity_count);
+			atomic_inc_unchecked(&pci_parity_count);
 		}
 
 		if (status & (PCI_STATUS_DETECTED_PARITY)) {
@@ -580,7 +580,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
 				"Detected Parity Error on %s\n",
 				pci_name(dev));
 
-			atomic_inc(&pci_parity_count);
+			atomic_inc_unchecked(&pci_parity_count);
 		}
 	}
 
@@ -603,7 +603,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
 				edac_printk(KERN_CRIT, EDAC_PCI, "Bridge "
 					"Signaled System Error on %s\n",
 					pci_name(dev));
-				atomic_inc(&pci_nonparity_count);
+				atomic_inc_unchecked(&pci_nonparity_count);
 			}
 
 			if (status & (PCI_STATUS_PARITY)) {
@@ -611,7 +611,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
 					"Master Data Parity Error on "
 					"%s\n", pci_name(dev));
 
-				atomic_inc(&pci_parity_count);
+				atomic_inc_unchecked(&pci_parity_count);
 			}
 
 			if (status & (PCI_STATUS_DETECTED_PARITY)) {
@@ -619,7 +619,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
 					"Detected Parity Error on %s\n",
 					pci_name(dev));
 
-				atomic_inc(&pci_parity_count);
+				atomic_inc_unchecked(&pci_parity_count);
 			}
 		}
 	}
@@ -657,7 +657,7 @@ void edac_pci_do_parity_check(void)
 	if (!check_pci_errors)
 		return;
 
-	before_count = atomic_read(&pci_parity_count);
+	before_count = atomic_read_unchecked(&pci_parity_count);
 
 	/* scan all PCI devices looking for a Parity Error on devices and
 	 * bridges.
@@ -669,7 +669,7 @@ void edac_pci_do_parity_check(void)
 	/* Only if operator has selected panic on PCI Error */
 	if (edac_pci_get_panic_on_pe()) {
 		/* If the count is different 'after' from 'before' */
-		if (before_count != atomic_read(&pci_parity_count))
+		if (before_count != atomic_read_unchecked(&pci_parity_count))
 			panic("EDAC: PCI Parity Error");
 	}
 }
diff --git a/drivers/edac/mce_amd.h b/drivers/edac/mce_amd.h
index c2359a1..8bd119d 100644
--- a/drivers/edac/mce_amd.h
+++ b/drivers/edac/mce_amd.h
@@ -74,7 +74,7 @@ struct amd_decoder_ops {
 	bool (*mc0_mce)(u16, u8);
 	bool (*mc1_mce)(u16, u8);
 	bool (*mc2_mce)(u16, u8);
-};
+} __no_const;
 
 void amd_report_gart_errors(bool);
 void amd_register_ecc_decoder(void (*f)(int, struct mce *));
diff --git a/drivers/firewire/core-card.c b/drivers/firewire/core-card.c
index 57ea7f4..af06b76 100644
--- a/drivers/firewire/core-card.c
+++ b/drivers/firewire/core-card.c
@@ -528,9 +528,9 @@ void fw_card_initialize(struct fw_card *card,
 			const struct fw_card_driver *driver,
 			struct device *device)
 {
-	static atomic_t index = ATOMIC_INIT(-1);
+	static atomic_unchecked_t index = ATOMIC_INIT(-1);
 
-	card->index = atomic_inc_return(&index);
+	card->index = atomic_inc_return_unchecked(&index);
 	card->driver = driver;
 	card->device = device;
 	card->current_tlabel = 0;
@@ -680,7 +680,7 @@ EXPORT_SYMBOL_GPL(fw_card_release);
 
 void fw_core_remove_card(struct fw_card *card)
 {
-	struct fw_card_driver dummy_driver = dummy_driver_template;
+	fw_card_driver_no_const dummy_driver = dummy_driver_template;
 
 	card->driver->update_phy_reg(card, 4,
 				     PHY_LINK_ACTIVE | PHY_CONTENDER, 0);
diff --git a/drivers/firewire/core-cdev.c b/drivers/firewire/core-cdev.c
index aee149b..2a18960 100644
--- a/drivers/firewire/core-cdev.c
+++ b/drivers/firewire/core-cdev.c
@@ -970,7 +970,7 @@ static int ioctl_create_iso_context(struct client *client, union ioctl_arg *arg)
 {
 	struct fw_cdev_create_iso_context *a = &arg->create_iso_context;
 	struct fw_iso_context *context;
-	fw_iso_callback_t cb;
+	void *cb;
 	int ret;
 
 	BUILD_BUG_ON(FW_CDEV_ISO_CONTEXT_TRANSMIT != FW_ISO_CONTEXT_TRANSMIT ||
@@ -995,7 +995,7 @@ static int ioctl_create_iso_context(struct client *client, union ioctl_arg *arg)
 		break;
 
 	case FW_ISO_CONTEXT_RECEIVE_MULTICHANNEL:
-		cb = (fw_iso_callback_t)iso_mc_callback;
+		cb = iso_mc_callback;
 		break;
 
 	default:
diff --git a/drivers/firewire/core-device.c b/drivers/firewire/core-device.c
index f9e3aee..269dbdb 100644
--- a/drivers/firewire/core-device.c
+++ b/drivers/firewire/core-device.c
@@ -256,7 +256,7 @@ EXPORT_SYMBOL(fw_device_enable_phys_dma);
 struct config_rom_attribute {
 	struct device_attribute attr;
 	u32 key;
-};
+} __do_const;
 
 static ssize_t show_immediate(struct device *dev,
 			      struct device_attribute *dattr, char *buf)
diff --git a/drivers/firewire/core-iso.c b/drivers/firewire/core-iso.c
index 38c0aa6..95466e4 100644
--- a/drivers/firewire/core-iso.c
+++ b/drivers/firewire/core-iso.c
@@ -162,7 +162,7 @@ size_t fw_iso_buffer_lookup(struct fw_iso_buffer *buffer, dma_addr_t completed)
 
 struct fw_iso_context *fw_iso_context_create(struct fw_card *card,
 		int type, int channel, int speed, size_t header_size,
-		fw_iso_callback_t callback, void *callback_data)
+		void *callback, void *callback_data)
 {
 	struct fw_iso_context *ctx;
 
diff --git a/drivers/firewire/core-transaction.c b/drivers/firewire/core-transaction.c
index d6a09b9..18e90dd 100644
--- a/drivers/firewire/core-transaction.c
+++ b/drivers/firewire/core-transaction.c
@@ -38,6 +38,7 @@
 #include <linux/timer.h>
 #include <linux/types.h>
 #include <linux/workqueue.h>
+#include <linux/sched.h>
 
 #include <asm/byteorder.h>
 
diff --git a/drivers/firewire/core.h b/drivers/firewire/core.h
index e1480ff6..1a429bd 100644
--- a/drivers/firewire/core.h
+++ b/drivers/firewire/core.h
@@ -111,6 +111,7 @@ struct fw_card_driver {
 
 	int (*stop_iso)(struct fw_iso_context *ctx);
 };
+typedef struct fw_card_driver __no_const fw_card_driver_no_const;
 
 void fw_card_initialize(struct fw_card *card,
 		const struct fw_card_driver *driver, struct device *device);
diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c
index 8bf8926..55a4930 100644
--- a/drivers/firewire/ohci.c
+++ b/drivers/firewire/ohci.c
@@ -2049,10 +2049,12 @@ static void bus_reset_work(struct work_struct *work)
 			  be32_to_cpu(ohci->next_header));
 	}
 
+#ifndef CONFIG_GRKERNSEC
 	if (param_remote_dma) {
 		reg_write(ohci, OHCI1394_PhyReqFilterHiSet, ~0);
 		reg_write(ohci, OHCI1394_PhyReqFilterLoSet, ~0);
 	}
+#endif
 
 	spin_unlock_irq(&ohci->lock);
 
@@ -2585,8 +2587,10 @@ static int ohci_enable_phys_dma(struct fw_card *card,
 	unsigned long flags;
 	int n, ret = 0;
 
+#ifndef CONFIG_GRKERNSEC
 	if (param_remote_dma)
 		return 0;
+#endif
 
 	/*
 	 * FIXME:  Make sure this bitmask is cleared when we clear the busReset
diff --git a/drivers/firmware/dmi-id.c b/drivers/firmware/dmi-id.c
index 94a58a0..5b8dd03 100644
--- a/drivers/firmware/dmi-id.c
+++ b/drivers/firmware/dmi-id.c
@@ -16,7 +16,7 @@
 struct dmi_device_attribute{
 	struct device_attribute dev_attr;
 	int field;
-};
+} __do_const;
 #define to_dmi_dev_attr(_dev_attr) \
 	container_of(_dev_attr, struct dmi_device_attribute, dev_attr)
 
@@ -159,9 +159,14 @@ static int dmi_dev_uevent(struct device *dev, struct kobj_uevent_env *env)
 	return 0;
 }
 
+static void dmi_dev_release(struct device *dev)
+{
+	kfree(dev);
+}
+
 static struct class dmi_class = {
 	.name = "dmi",
-	.dev_release = (void(*)(struct device *)) kfree,
+	.dev_release = dmi_dev_release,
 	.dev_uevent = dmi_dev_uevent,
 };
 
diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
index 88bebe1..e599fad 100644
--- a/drivers/firmware/dmi_scan.c
+++ b/drivers/firmware/dmi_scan.c
@@ -712,14 +712,18 @@ static int __init dmi_init(void)
 	if (!dmi_table)
 		goto err_tables;
 
-	bin_attr_smbios_entry_point.size = smbios_entry_point_size;
-	bin_attr_smbios_entry_point.private = smbios_entry_point;
+	pax_open_kernel();
+	const_cast(bin_attr_smbios_entry_point.size) = smbios_entry_point_size;
+	const_cast(bin_attr_smbios_entry_point.private) = smbios_entry_point;
+	pax_close_kernel();
 	ret = sysfs_create_bin_file(tables_kobj, &bin_attr_smbios_entry_point);
 	if (ret)
 		goto err_unmap;
 
-	bin_attr_DMI.size = dmi_len;
-	bin_attr_DMI.private = dmi_table;
+	pax_open_kernel();
+	const_cast(bin_attr_DMI.size) = dmi_len;
+	const_cast(bin_attr_DMI.private) = dmi_table;
+	pax_close_kernel();
 	ret = sysfs_create_bin_file(tables_kobj, &bin_attr_DMI);
 	if (!ret)
 		return 0;
diff --git a/drivers/firmware/efi/cper.c b/drivers/firmware/efi/cper.c
index d425374..1da1716 100644
--- a/drivers/firmware/efi/cper.c
+++ b/drivers/firmware/efi/cper.c
@@ -44,12 +44,12 @@ static char rcd_decode_str[CPER_REC_LEN];
  */
 u64 cper_next_record_id(void)
 {
-	static atomic64_t seq;
+	static atomic64_unchecked_t seq;
 
-	if (!atomic64_read(&seq))
-		atomic64_set(&seq, ((u64)get_seconds()) << 32);
+	if (!atomic64_read_unchecked(&seq))
+		atomic64_set_unchecked(&seq, ((u64)get_seconds()) << 32);
 
-	return atomic64_inc_return(&seq);
+	return atomic64_inc_return_unchecked(&seq);
 }
 EXPORT_SYMBOL_GPL(cper_next_record_id);
 
diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
index 3a69ed5..0cfea9c6 100644
--- a/drivers/firmware/efi/efi.c
+++ b/drivers/firmware/efi/efi.c
@@ -176,15 +176,17 @@ static struct attribute_group efi_subsys_attr_group = {
 };
 
 static struct efivars generic_efivars;
-static struct efivar_operations generic_ops;
+static efivar_operations_no_const generic_ops __read_only;
 
 static int generic_ops_register(void)
 {
-	generic_ops.get_variable = efi.get_variable;
-	generic_ops.set_variable = efi.set_variable;
-	generic_ops.set_variable_nonblocking = efi.set_variable_nonblocking;
-	generic_ops.get_next_variable = efi.get_next_variable;
-	generic_ops.query_variable_store = efi_query_variable_store;
+	pax_open_kernel();
+	const_cast(generic_ops.get_variable) = efi.get_variable;
+	const_cast(generic_ops.set_variable) = efi.set_variable;
+	const_cast(generic_ops.set_variable_nonblocking) = efi.set_variable_nonblocking;
+	const_cast(generic_ops.get_next_variable) = efi.get_next_variable;
+	const_cast(generic_ops.query_variable_store) = efi_query_variable_store;
+	pax_close_kernel();
 
 	return efivars_register(&generic_efivars, &generic_ops, efi_kobj);
 }
diff --git a/drivers/firmware/efi/efivars.c b/drivers/firmware/efi/efivars.c
index 096adcb..0235592 100644
--- a/drivers/firmware/efi/efivars.c
+++ b/drivers/firmware/efi/efivars.c
@@ -583,7 +583,7 @@ efivar_create_sysfs_entry(struct efivar_entry *new_var)
 static int
 create_efivars_bin_attributes(void)
 {
-	struct bin_attribute *attr;
+	bin_attribute_no_const *attr;
 	int error;
 
 	/* new_var */
diff --git a/drivers/firmware/efi/runtime-map.c b/drivers/firmware/efi/runtime-map.c
index 5c55227..97f4978 100644
--- a/drivers/firmware/efi/runtime-map.c
+++ b/drivers/firmware/efi/runtime-map.c
@@ -97,7 +97,7 @@ static void map_release(struct kobject *kobj)
 	kfree(entry);
 }
 
-static struct kobj_type __refdata map_ktype = {
+static const struct kobj_type __refconst map_ktype = {
 	.sysfs_ops	= &map_attr_ops,
 	.default_attrs	= def_attrs,
 	.release	= map_release,
diff --git a/drivers/firmware/google/gsmi.c b/drivers/firmware/google/gsmi.c
index f1ab05e..ab51228 100644
--- a/drivers/firmware/google/gsmi.c
+++ b/drivers/firmware/google/gsmi.c
@@ -709,7 +709,7 @@ static u32 __init hash_oem_table_id(char s[8])
 	return local_hash_64(input, 32);
 }
 
-static struct dmi_system_id gsmi_dmi_table[] __initdata = {
+static const struct dmi_system_id gsmi_dmi_table[] __initconst = {
 	{
 		.ident = "Google Board",
 		.matches = {
diff --git a/drivers/firmware/google/memconsole.c b/drivers/firmware/google/memconsole.c
index 2f569aa..3af5497 100644
--- a/drivers/firmware/google/memconsole.c
+++ b/drivers/firmware/google/memconsole.c
@@ -136,7 +136,7 @@ static bool __init found_memconsole(void)
 	return false;
 }
 
-static struct dmi_system_id memconsole_dmi_table[] __initdata = {
+static const struct dmi_system_id memconsole_dmi_table[] __initconst = {
 	{
 		.ident = "Google Board",
 		.matches = {
@@ -155,7 +155,10 @@ static int __init memconsole_init(void)
 	if (!found_memconsole())
 		return -ENODEV;
 
-	memconsole_bin_attr.size = memconsole_length;
+	pax_open_kernel();
+	const_cast(memconsole_bin_attr.size) = memconsole_length;
+	pax_close_kernel();
+
 	return sysfs_create_bin_file(firmware_kobj, &memconsole_bin_attr);
 }
 
diff --git a/drivers/firmware/memmap.c b/drivers/firmware/memmap.c
index 5de3ed2..d839c56 100644
--- a/drivers/firmware/memmap.c
+++ b/drivers/firmware/memmap.c
@@ -124,7 +124,7 @@ static void __meminit release_firmware_map_entry(struct kobject *kobj)
 	kfree(entry);
 }
 
-static struct kobj_type __refdata memmap_ktype = {
+static const struct kobj_type __refconst memmap_ktype = {
 	.release	= release_firmware_map_entry,
 	.sysfs_ops	= &memmap_attr_ops,
 	.default_attrs	= def_attrs,
diff --git a/drivers/firmware/psci.c b/drivers/firmware/psci.c
index b5d0580..893aa47 100644
--- a/drivers/firmware/psci.c
+++ b/drivers/firmware/psci.c
@@ -58,7 +58,7 @@ bool psci_tos_resident_on(int cpu)
 	return cpu == resident_cpu;
 }
 
-struct psci_operations psci_ops;
+struct psci_operations psci_ops __read_only;
 
 typedef unsigned long (psci_fn)(unsigned long, unsigned long,
 				unsigned long, unsigned long);
diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c
index dd262f0..2834a84 100644
--- a/drivers/gpio/gpio-davinci.c
+++ b/drivers/gpio/gpio-davinci.c
@@ -440,9 +440,9 @@ static struct irq_chip *davinci_gpio_get_irq_chip(unsigned int irq)
 	return &gpio_unbanked.chip;
 };
 
-static struct irq_chip *keystone_gpio_get_irq_chip(unsigned int irq)
+static irq_chip_no_const *keystone_gpio_get_irq_chip(unsigned int irq)
 {
-	static struct irq_chip gpio_unbanked;
+	static irq_chip_no_const gpio_unbanked;
 
 	gpio_unbanked = *irq_get_chip(irq);
 	return &gpio_unbanked;
@@ -472,7 +472,7 @@ static int davinci_gpio_irq_setup(struct platform_device *pdev)
 	struct davinci_gpio_regs __iomem *g;
 	struct irq_domain	*irq_domain = NULL;
 	const struct of_device_id *match;
-	struct irq_chip *irq_chip;
+	irq_chip_no_const *irq_chip;
 	gpio_get_irq_chip_cb_t gpio_get_irq_chip;
 
 	/*
diff --git a/drivers/gpio/gpio-em.c b/drivers/gpio/gpio-em.c
index 8d32ccc..2d2ca61 100644
--- a/drivers/gpio/gpio-em.c
+++ b/drivers/gpio/gpio-em.c
@@ -274,7 +274,7 @@ static int em_gio_probe(struct platform_device *pdev)
 	struct em_gio_priv *p;
 	struct resource *io[2], *irq[2];
 	struct gpio_chip *gpio_chip;
-	struct irq_chip *irq_chip;
+	irq_chip_no_const *irq_chip;
 	const char *name = dev_name(&pdev->dev);
 	unsigned int ngpios;
 	int ret;
diff --git a/drivers/gpio/gpio-ich.c b/drivers/gpio/gpio-ich.c
index 4f6d643..eb4655c 100644
--- a/drivers/gpio/gpio-ich.c
+++ b/drivers/gpio/gpio-ich.c
@@ -95,7 +95,7 @@ struct ichx_desc {
 	 * this option allows driver caching written output values
 	 */
 	bool use_outlvl_cache;
-};
+} __do_const;
 
 static struct {
 	spinlock_t lock;
diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c
index 425501c..cad19ba 100644
--- a/drivers/gpio/gpio-mpc8xxx.c
+++ b/drivers/gpio/gpio-mpc8xxx.c
@@ -226,7 +226,7 @@ static int mpc512x_irq_set_type(struct irq_data *d, unsigned int flow_type)
 	return 0;
 }
 
-static struct irq_chip mpc8xxx_irq_chip = {
+static irq_chip_no_const mpc8xxx_irq_chip __read_only = {
 	.name		= "mpc8xxx-gpio",
 	.irq_unmask	= mpc8xxx_irq_unmask,
 	.irq_mask	= mpc8xxx_irq_mask,
@@ -337,7 +337,9 @@ static int mpc8xxx_probe(struct platform_device *pdev)
 	 * It's assumed that only a single type of gpio controller is available
 	 * on the current machine, so overwriting global data is fine.
 	 */
-	mpc8xxx_irq_chip.irq_set_type = devtype->irq_set_type;
+	pax_open_kernel();
+	const_cast(mpc8xxx_irq_chip.irq_set_type) = devtype->irq_set_type;
+	pax_close_kernel();
 
 	if (devtype->gpio_dir_out)
 		gc->direction_output = devtype->gpio_dir_out;
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index 551dfa9..fc6ca83 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -1068,7 +1068,7 @@ static void omap_gpio_mod_init(struct gpio_bank *bank)
 		writel_relaxed(0, base + bank->regs->ctrl);
 }
 
-static int omap_gpio_chip_init(struct gpio_bank *bank, struct irq_chip *irqc)
+static int omap_gpio_chip_init(struct gpio_bank *bank, irq_chip_no_const *irqc)
 {
 	static int gpio;
 	int irq_base = 0;
@@ -1158,7 +1158,7 @@ static int omap_gpio_probe(struct platform_device *pdev)
 	const struct omap_gpio_platform_data *pdata;
 	struct resource *res;
 	struct gpio_bank *bank;
-	struct irq_chip *irqc;
+	irq_chip_no_const *irqc;
 	int ret;
 
 	match = of_match_device(of_match_ptr(omap_gpio_match), dev);
diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c
index 4d9a315c..b1fed42 100644
--- a/drivers/gpio/gpio-rcar.c
+++ b/drivers/gpio/gpio-rcar.c
@@ -369,7 +369,7 @@ static int gpio_rcar_probe(struct platform_device *pdev)
 	struct gpio_rcar_priv *p;
 	struct resource *io, *irq;
 	struct gpio_chip *gpio_chip;
-	struct irq_chip *irq_chip;
+	irq_chip_no_const *irq_chip;
 	struct device *dev = &pdev->dev;
 	const char *name = dev_name(dev);
 	unsigned int npins;
diff --git a/drivers/gpio/gpio-vr41xx.c b/drivers/gpio/gpio-vr41xx.c
index ac8deb0..f3caa10 100644
--- a/drivers/gpio/gpio-vr41xx.c
+++ b/drivers/gpio/gpio-vr41xx.c
@@ -224,7 +224,7 @@ static int giu_get_irq(unsigned int irq)
 	printk(KERN_ERR "spurious GIU interrupt: %04x(%04x),%04x(%04x)\n",
 	       maskl, pendl, maskh, pendh);
 
-	atomic_inc(&irq_err_count);
+	atomic_inc_unchecked(&irq_err_count);
 
 	return -EINVAL;
 }
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index cf3e712..2d532c3 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1031,8 +1031,10 @@ static void gpiochip_irqchip_remove(struct gpio_chip *gpiochip)
 	}
 
 	if (gpiochip->irqchip) {
-		gpiochip->irqchip->irq_request_resources = NULL;
-		gpiochip->irqchip->irq_release_resources = NULL;
+		pax_open_kernel();
+		const_cast(gpiochip->irqchip->irq_request_resources) = NULL;
+		const_cast(gpiochip->irqchip->irq_release_resources) = NULL;
+		pax_close_kernel();
 		gpiochip->irqchip = NULL;
 	}
 }
@@ -1109,8 +1111,10 @@ int _gpiochip_irqchip_add(struct gpio_chip *gpiochip,
 	 */
 	if (!irqchip->irq_request_resources &&
 	    !irqchip->irq_release_resources) {
-		irqchip->irq_request_resources = gpiochip_irq_reqres;
-		irqchip->irq_release_resources = gpiochip_irq_relres;
+		pax_open_kernel();
+		const_cast(irqchip->irq_request_resources) = gpiochip_irq_reqres;
+		const_cast(irqchip->irq_release_resources) = gpiochip_irq_relres;
+		pax_close_kernel();
 	}
 
 	/*
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 1bcbade..c8d5713 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1709,7 +1709,7 @@ void amdgpu_debugfs_cleanup(struct drm_minor *minor);
  * amdgpu smumgr functions
  */
 struct amdgpu_smumgr_funcs {
-	int (*check_fw_load_finish)(struct amdgpu_device *adev, uint32_t fwtype);
+	int (*check_fw_load_finish)(struct amdgpu_device *adev, enum AMDGPU_UCODE_ID fwtype);
 	int (*request_smu_load_fw)(struct amdgpu_device *adev);
 	int (*request_smu_specific_fw)(struct amdgpu_device *adev, uint32_t fwtype);
 };
@@ -2339,7 +2339,7 @@ static inline void amdgpu_unregister_atpx_handler(void) {}
  * KMS
  */
 extern const struct drm_ioctl_desc amdgpu_ioctls_kms[];
-extern int amdgpu_max_kms_ioctl;
+extern const int amdgpu_max_kms_ioctl;
 
 int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags);
 int amdgpu_driver_unload_kms(struct drm_device *dev);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c
index 35a1248..fd2510a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c
@@ -496,7 +496,7 @@ static int amdgpu_atpx_init(void)
  * look up whether we are the integrated or discrete GPU (all asics).
  * Returns the client id.
  */
-static int amdgpu_atpx_get_client_id(struct pci_dev *pdev)
+static enum vga_switcheroo_client_id amdgpu_atpx_get_client_id(struct pci_dev *pdev)
 {
 	if (amdgpu_atpx_priv.dhandle == ACPI_HANDLE(&pdev->dev))
 		return VGA_SWITCHEROO_IGD;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
index 6043dc7..517c964 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
@@ -1076,49 +1076,49 @@ int amdgpu_cgs_call_acpi_method(void *cgs_device,
 }
 
 static const struct cgs_ops amdgpu_cgs_ops = {
-	amdgpu_cgs_gpu_mem_info,
-	amdgpu_cgs_gmap_kmem,
-	amdgpu_cgs_gunmap_kmem,
-	amdgpu_cgs_alloc_gpu_mem,
-	amdgpu_cgs_free_gpu_mem,
-	amdgpu_cgs_gmap_gpu_mem,
-	amdgpu_cgs_gunmap_gpu_mem,
-	amdgpu_cgs_kmap_gpu_mem,
-	amdgpu_cgs_kunmap_gpu_mem,
-	amdgpu_cgs_read_register,
-	amdgpu_cgs_write_register,
-	amdgpu_cgs_read_ind_register,
-	amdgpu_cgs_write_ind_register,
-	amdgpu_cgs_read_pci_config_byte,
-	amdgpu_cgs_read_pci_config_word,
-	amdgpu_cgs_read_pci_config_dword,
-	amdgpu_cgs_write_pci_config_byte,
-	amdgpu_cgs_write_pci_config_word,
-	amdgpu_cgs_write_pci_config_dword,
-	amdgpu_cgs_get_pci_resource,
-	amdgpu_cgs_atom_get_data_table,
-	amdgpu_cgs_atom_get_cmd_table_revs,
-	amdgpu_cgs_atom_exec_cmd_table,
-	amdgpu_cgs_create_pm_request,
-	amdgpu_cgs_destroy_pm_request,
-	amdgpu_cgs_set_pm_request,
-	amdgpu_cgs_pm_request_clock,
-	amdgpu_cgs_pm_request_engine,
-	amdgpu_cgs_pm_query_clock_limits,
-	amdgpu_cgs_set_camera_voltages,
-	amdgpu_cgs_get_firmware_info,
-	amdgpu_cgs_set_powergating_state,
-	amdgpu_cgs_set_clockgating_state,
-	amdgpu_cgs_get_active_displays_info,
-	amdgpu_cgs_notify_dpm_enabled,
-	amdgpu_cgs_call_acpi_method,
-	amdgpu_cgs_query_system_info,
+	.gpu_mem_info = amdgpu_cgs_gpu_mem_info,
+	.gmap_kmem = amdgpu_cgs_gmap_kmem,
+	.gunmap_kmem = amdgpu_cgs_gunmap_kmem,
+	.alloc_gpu_mem = amdgpu_cgs_alloc_gpu_mem,
+	.free_gpu_mem = amdgpu_cgs_free_gpu_mem,
+	.gmap_gpu_mem = amdgpu_cgs_gmap_gpu_mem,
+	.gunmap_gpu_mem = amdgpu_cgs_gunmap_gpu_mem,
+	.kmap_gpu_mem = amdgpu_cgs_kmap_gpu_mem,
+	.kunmap_gpu_mem = amdgpu_cgs_kunmap_gpu_mem,
+	.read_register = amdgpu_cgs_read_register,
+	.write_register = amdgpu_cgs_write_register,
+	.read_ind_register = amdgpu_cgs_read_ind_register,
+	.write_ind_register = amdgpu_cgs_write_ind_register,
+	.read_pci_config_byte = amdgpu_cgs_read_pci_config_byte,
+	.read_pci_config_word = amdgpu_cgs_read_pci_config_word,
+	.read_pci_config_dword = amdgpu_cgs_read_pci_config_dword,
+	.write_pci_config_byte = amdgpu_cgs_write_pci_config_byte,
+	.write_pci_config_word = amdgpu_cgs_write_pci_config_word,
+	.write_pci_config_dword = amdgpu_cgs_write_pci_config_dword,
+	.get_pci_resource = amdgpu_cgs_get_pci_resource,
+	.atom_get_data_table = amdgpu_cgs_atom_get_data_table,
+	.atom_get_cmd_table_revs = amdgpu_cgs_atom_get_cmd_table_revs,
+	.atom_exec_cmd_table = amdgpu_cgs_atom_exec_cmd_table,
+	.create_pm_request = amdgpu_cgs_create_pm_request,
+	.destroy_pm_request = amdgpu_cgs_destroy_pm_request,
+	.set_pm_request = amdgpu_cgs_set_pm_request,
+	.pm_request_clock = amdgpu_cgs_pm_request_clock,
+	.pm_request_engine = amdgpu_cgs_pm_request_engine,
+	.pm_query_clock_limits = amdgpu_cgs_pm_query_clock_limits,
+	.set_camera_voltages = amdgpu_cgs_set_camera_voltages,
+	.get_firmware_info = amdgpu_cgs_get_firmware_info,
+	.set_powergating_state = amdgpu_cgs_set_powergating_state,
+	.set_clockgating_state = amdgpu_cgs_set_clockgating_state,
+	.get_active_displays_info = amdgpu_cgs_get_active_displays_info,
+	.notify_dpm_enabled = amdgpu_cgs_notify_dpm_enabled,
+	.call_acpi_method = amdgpu_cgs_call_acpi_method,
+	.query_system_info = amdgpu_cgs_query_system_info
 };
 
 static const struct cgs_os_ops amdgpu_cgs_os_ops = {
-	amdgpu_cgs_add_irq_source,
-	amdgpu_cgs_irq_get,
-	amdgpu_cgs_irq_put
+	.add_irq_source = amdgpu_cgs_add_irq_source,
+	.irq_get = amdgpu_cgs_irq_get,
+	.irq_put = amdgpu_cgs_irq_put
 };
 
 void *amdgpu_cgs_create_device(struct amdgpu_device *adev)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
index 7ef2c13..dff07e5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
@@ -701,7 +701,7 @@ static int amdgpu_connector_lvds_get_modes(struct drm_connector *connector)
 	return ret;
 }
 
-static int amdgpu_connector_lvds_mode_valid(struct drm_connector *connector,
+static enum drm_mode_status amdgpu_connector_lvds_mode_valid(struct drm_connector *connector,
 					     struct drm_display_mode *mode)
 {
 	struct drm_encoder *encoder = amdgpu_connector_best_single_encoder(connector);
@@ -838,7 +838,7 @@ static int amdgpu_connector_vga_get_modes(struct drm_connector *connector)
 	return ret;
 }
 
-static int amdgpu_connector_vga_mode_valid(struct drm_connector *connector,
+static enum drm_mode_status amdgpu_connector_vga_mode_valid(struct drm_connector *connector,
 					    struct drm_display_mode *mode)
 {
 	struct drm_device *dev = connector->dev;
@@ -1158,7 +1158,7 @@ static void amdgpu_connector_dvi_force(struct drm_connector *connector)
 		amdgpu_connector->use_digital = true;
 }
 
-static int amdgpu_connector_dvi_mode_valid(struct drm_connector *connector,
+static enum drm_mode_status amdgpu_connector_dvi_mode_valid(struct drm_connector *connector,
 					    struct drm_display_mode *mode)
 {
 	struct drm_device *dev = connector->dev;
@@ -1427,7 +1427,7 @@ out:
 	return ret;
 }
 
-static int amdgpu_connector_dp_mode_valid(struct drm_connector *connector,
+static enum drm_mode_status amdgpu_connector_dp_mode_valid(struct drm_connector *connector,
 					   struct drm_display_mode *mode)
 {
 	struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 2139da7..222ef8b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -1054,7 +1054,7 @@ static bool amdgpu_switcheroo_can_switch(struct pci_dev *pdev)
 	* locking inversion with the driver load path. And the access here is
 	* completely racy anyway. So don't bother with locking for now.
 	*/
-	return dev->open_count == 0;
+	return local_read(&dev->open_count) == 0;
 }
 
 static const struct vga_switcheroo_client_ops amdgpu_switcheroo_ops = {
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index f1e17d6..e7d750a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -491,7 +491,7 @@ static struct drm_driver kms_driver = {
 	.driver_features =
 	    DRIVER_USE_AGP |
 	    DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_GEM |
-	    DRIVER_PRIME | DRIVER_RENDER,
+	    DRIVER_PRIME | DRIVER_RENDER | DRIVER_MODESET,
 	.dev_priv_size = 0,
 	.load = amdgpu_driver_load_kms,
 	.open = amdgpu_driver_open_kms,
@@ -542,9 +542,6 @@ static struct drm_driver kms_driver = {
 	.patchlevel = KMS_DRIVER_PATCHLEVEL,
 };
 
-static struct drm_driver *driver;
-static struct pci_driver *pdriver;
-
 static struct pci_driver amdgpu_kms_pci_driver = {
 	.name = DRIVER_NAME,
 	.id_table = pciidlist,
@@ -563,20 +560,21 @@ static int __init amdgpu_init(void)
 	}
 #endif
 	DRM_INFO("amdgpu kernel modesetting enabled.\n");
-	driver = &kms_driver;
-	pdriver = &amdgpu_kms_pci_driver;
-	driver->driver_features |= DRIVER_MODESET;
-	driver->num_ioctls = amdgpu_max_kms_ioctl;
+
+	pax_open_kernel();
+	const_cast(kms_driver.num_ioctls) = amdgpu_max_kms_ioctl;
+	pax_close_kernel();
+
 	amdgpu_register_atpx_handler();
 
 	/* let modprobe override vga console setting */
-	return drm_pci_init(driver, pdriver);
+	return drm_pci_init(&kms_driver, &amdgpu_kms_pci_driver);
 }
 
 static void __exit amdgpu_exit(void)
 {
 	amdgpu_amdkfd_fini();
-	drm_pci_exit(driver, pdriver);
+	drm_pci_exit(&kms_driver, &amdgpu_kms_pci_driver);
 	amdgpu_unregister_atpx_handler();
 	amdgpu_sync_fini();
 }
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index b04337d..7db2712 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -755,4 +755,4 @@ const struct drm_ioctl_desc amdgpu_ioctls_kms[] = {
 	DRM_IOCTL_DEF_DRV(AMDGPU_GEM_OP, amdgpu_gem_op_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
 	DRM_IOCTL_DEF_DRV(AMDGPU_GEM_USERPTR, amdgpu_gem_userptr_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
 };
-int amdgpu_max_kms_ioctl = ARRAY_SIZE(amdgpu_ioctls_kms);
+const int amdgpu_max_kms_ioctl = ARRAY_SIZE(amdgpu_ioctls_kms);
diff --git a/drivers/gpu/drm/amd/amdgpu/fiji_smc.c b/drivers/gpu/drm/amd/amdgpu/fiji_smc.c
index b336c91..c015ca7 100644
--- a/drivers/gpu/drm/amd/amdgpu/fiji_smc.c
+++ b/drivers/gpu/drm/amd/amdgpu/fiji_smc.c
@@ -519,7 +519,7 @@ static int fiji_smu_request_load_fw(struct amdgpu_device *adev)
 	return 0;
 }
 
-static uint32_t fiji_smu_get_mask_for_fw_type(uint32_t fw_type)
+static uint32_t fiji_smu_get_mask_for_fw_type(enum AMDGPU_UCODE_ID fw_type)
 {
 	switch (fw_type) {
 		case AMDGPU_UCODE_ID_SDMA0:
@@ -545,7 +545,7 @@ static uint32_t fiji_smu_get_mask_for_fw_type(uint32_t fw_type)
 }
 
 static int fiji_smu_check_fw_load_finish(struct amdgpu_device *adev,
-					uint32_t fw_type)
+					enum AMDGPU_UCODE_ID fw_type)
 {
 	uint32_t fw_mask = fiji_smu_get_mask_for_fw_type(fw_type);
 	int i;
diff --git a/drivers/gpu/drm/amd/amdgpu/iceland_smc.c b/drivers/gpu/drm/amd/amdgpu/iceland_smc.c
index 52ee081..fa68463 100644
--- a/drivers/gpu/drm/amd/amdgpu/iceland_smc.c
+++ b/drivers/gpu/drm/amd/amdgpu/iceland_smc.c
@@ -424,7 +424,7 @@ static enum AMDGPU_UCODE_ID iceland_convert_fw_type(uint32_t fw_type)
 	}
 }
 
-static uint32_t iceland_smu_get_mask_for_fw_type(uint32_t fw_type)
+static uint32_t iceland_smu_get_mask_for_fw_type(enum AMDGPU_UCODE_ID fw_type)
 {
 	switch (fw_type) {
 		case AMDGPU_UCODE_ID_SDMA0:
@@ -562,7 +562,7 @@ static int iceland_smu_request_load_fw(struct amdgpu_device *adev)
 }
 
 static int iceland_smu_check_fw_load_finish(struct amdgpu_device *adev,
-					    uint32_t fw_type)
+					    enum AMDGPU_UCODE_ID fw_type)
 {
 	uint32_t fw_mask = iceland_smu_get_mask_for_fw_type(fw_type);
 	int i;
diff --git a/drivers/gpu/drm/amd/amdgpu/tonga_smc.c b/drivers/gpu/drm/amd/amdgpu/tonga_smc.c
index 083893d..d4f66f5 100644
--- a/drivers/gpu/drm/amd/amdgpu/tonga_smc.c
+++ b/drivers/gpu/drm/amd/amdgpu/tonga_smc.c
@@ -521,7 +521,7 @@ static int tonga_smu_request_load_fw(struct amdgpu_device *adev)
 	return 0;
 }
 
-static uint32_t tonga_smu_get_mask_for_fw_type(uint32_t fw_type)
+static uint32_t tonga_smu_get_mask_for_fw_type(enum AMDGPU_UCODE_ID fw_type)
 {
 	switch (fw_type) {
 		case AMDGPU_UCODE_ID_SDMA0:
@@ -547,7 +547,7 @@ static uint32_t tonga_smu_get_mask_for_fw_type(uint32_t fw_type)
 }
 
 static int tonga_smu_check_fw_load_finish(struct amdgpu_device *adev,
-					uint32_t fw_type)
+					enum AMDGPU_UCODE_ID fw_type)
 {
 	uint32_t fw_mask = tonga_smu_get_mask_for_fw_type(fw_type);
 	int i;
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
index 07ac724..1c4ca38 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
@@ -419,7 +419,7 @@ static int kfd_ioctl_set_memory_policy(struct file *filep,
 		(args->alternate_policy == KFD_IOC_CACHE_POLICY_COHERENT)
 		   ? cache_policy_coherent : cache_policy_noncoherent;
 
-	if (!dev->dqm->ops.set_cache_memory_policy(dev->dqm,
+	if (!dev->dqm->ops->set_cache_memory_policy(dev->dqm,
 				&pdd->qpd,
 				default_policy,
 				alternate_policy,
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
index 3f95f7c..0a62dad 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
@@ -298,7 +298,7 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd,
 		goto device_queue_manager_error;
 	}
 
-	if (kfd->dqm->ops.start(kfd->dqm) != 0) {
+	if (kfd->dqm->ops->start(kfd->dqm) != 0) {
 		dev_err(kfd_device,
 			"Error starting queuen manager for device (%x:%x)\n",
 			kfd->pdev->vendor, kfd->pdev->device);
@@ -354,7 +354,7 @@ void kgd2kfd_suspend(struct kfd_dev *kfd)
 	BUG_ON(kfd == NULL);
 
 	if (kfd->init_complete) {
-		kfd->dqm->ops.stop(kfd->dqm);
+		kfd->dqm->ops->stop(kfd->dqm);
 		amd_iommu_set_invalidate_ctx_cb(kfd->pdev, NULL);
 		amd_iommu_set_invalid_ppr_cb(kfd->pdev, NULL);
 		amd_iommu_free_device(kfd->pdev);
@@ -377,7 +377,7 @@ int kgd2kfd_resume(struct kfd_dev *kfd)
 		amd_iommu_set_invalidate_ctx_cb(kfd->pdev,
 						iommu_pasid_shutdown_callback);
 		amd_iommu_set_invalid_ppr_cb(kfd->pdev, iommu_invalid_ppr_cb);
-		kfd->dqm->ops.start(kfd->dqm);
+		kfd->dqm->ops->start(kfd->dqm);
 	}
 
 	return 0;
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
index 4bb7f42..320fcac 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
@@ -242,7 +242,7 @@ static int create_compute_queue_nocpsch(struct device_queue_manager *dqm,
 
 	BUG_ON(!dqm || !q || !qpd);
 
-	mqd = dqm->ops.get_mqd_manager(dqm, KFD_MQD_TYPE_COMPUTE);
+	mqd = dqm->ops->get_mqd_manager(dqm, KFD_MQD_TYPE_COMPUTE);
 	if (mqd == NULL)
 		return -ENOMEM;
 
@@ -288,14 +288,14 @@ static int destroy_queue_nocpsch(struct device_queue_manager *dqm,
 	mutex_lock(&dqm->lock);
 
 	if (q->properties.type == KFD_QUEUE_TYPE_COMPUTE) {
-		mqd = dqm->ops.get_mqd_manager(dqm, KFD_MQD_TYPE_COMPUTE);
+		mqd = dqm->ops->get_mqd_manager(dqm, KFD_MQD_TYPE_COMPUTE);
 		if (mqd == NULL) {
 			retval = -ENOMEM;
 			goto out;
 		}
 		deallocate_hqd(dqm, q);
 	} else if (q->properties.type == KFD_QUEUE_TYPE_SDMA) {
-		mqd = dqm->ops.get_mqd_manager(dqm, KFD_MQD_TYPE_SDMA);
+		mqd = dqm->ops->get_mqd_manager(dqm, KFD_MQD_TYPE_SDMA);
 		if (mqd == NULL) {
 			retval = -ENOMEM;
 			goto out;
@@ -347,7 +347,7 @@ static int update_queue(struct device_queue_manager *dqm, struct queue *q)
 	BUG_ON(!dqm || !q || !q->mqd);
 
 	mutex_lock(&dqm->lock);
-	mqd = dqm->ops.get_mqd_manager(dqm,
+	mqd = dqm->ops->get_mqd_manager(dqm,
 			get_mqd_type_from_queue_type(q->properties.type));
 	if (mqd == NULL) {
 		mutex_unlock(&dqm->lock);
@@ -414,7 +414,7 @@ static int register_process_nocpsch(struct device_queue_manager *dqm,
 	mutex_lock(&dqm->lock);
 	list_add(&n->list, &dqm->queues);
 
-	retval = dqm->ops_asic_specific.register_process(dqm, qpd);
+	retval = dqm->ops_asic_specific->register_process(dqm, qpd);
 
 	dqm->processes_count++;
 
@@ -502,7 +502,7 @@ int init_pipelines(struct device_queue_manager *dqm,
 
 	memset(hpdptr, 0, CIK_HPD_EOP_BYTES * pipes_num);
 
-	mqd = dqm->ops.get_mqd_manager(dqm, KFD_MQD_TYPE_COMPUTE);
+	mqd = dqm->ops->get_mqd_manager(dqm, KFD_MQD_TYPE_COMPUTE);
 	if (mqd == NULL) {
 		kfd_gtt_sa_free(dqm->dev, dqm->pipeline_mem);
 		return -ENOMEM;
@@ -635,7 +635,7 @@ static int create_sdma_queue_nocpsch(struct device_queue_manager *dqm,
 	struct mqd_manager *mqd;
 	int retval;
 
-	mqd = dqm->ops.get_mqd_manager(dqm, KFD_MQD_TYPE_SDMA);
+	mqd = dqm->ops->get_mqd_manager(dqm, KFD_MQD_TYPE_SDMA);
 	if (!mqd)
 		return -ENOMEM;
 
@@ -650,7 +650,7 @@ static int create_sdma_queue_nocpsch(struct device_queue_manager *dqm,
 	pr_debug("     sdma queue id: %d\n", q->properties.sdma_queue_id);
 	pr_debug("     sdma engine id: %d\n", q->properties.sdma_engine_id);
 
-	dqm->ops_asic_specific.init_sdma_vm(dqm, q, qpd);
+	dqm->ops_asic_specific->init_sdma_vm(dqm, q, qpd);
 	retval = mqd->init_mqd(mqd, &q->mqd, &q->mqd_mem_obj,
 				&q->gart_mqd_addr, &q->properties);
 	if (retval != 0) {
@@ -712,7 +712,7 @@ static int initialize_cpsch(struct device_queue_manager *dqm)
 	dqm->queue_count = dqm->processes_count = 0;
 	dqm->sdma_queue_count = 0;
 	dqm->active_runlist = false;
-	retval = dqm->ops_asic_specific.initialize(dqm);
+	retval = dqm->ops_asic_specific->initialize(dqm);
 	if (retval != 0)
 		goto fail_init_pipelines;
 
@@ -879,7 +879,7 @@ static int create_queue_cpsch(struct device_queue_manager *dqm, struct queue *q,
 	if (q->properties.type == KFD_QUEUE_TYPE_SDMA)
 		select_sdma_engine_id(q);
 
-	mqd = dqm->ops.get_mqd_manager(dqm,
+	mqd = dqm->ops->get_mqd_manager(dqm,
 			get_mqd_type_from_queue_type(q->properties.type));
 
 	if (mqd == NULL) {
@@ -887,7 +887,7 @@ static int create_queue_cpsch(struct device_queue_manager *dqm, struct queue *q,
 		return -ENOMEM;
 	}
 
-	dqm->ops_asic_specific.init_sdma_vm(dqm, q, qpd);
+	dqm->ops_asic_specific->init_sdma_vm(dqm, q, qpd);
 	retval = mqd->init_mqd(mqd, &q->mqd, &q->mqd_mem_obj,
 				&q->gart_mqd_addr, &q->properties);
 	if (retval != 0)
@@ -1060,7 +1060,7 @@ static int destroy_queue_cpsch(struct device_queue_manager *dqm,
 
 	}
 
-	mqd = dqm->ops.get_mqd_manager(dqm,
+	mqd = dqm->ops->get_mqd_manager(dqm,
 			get_mqd_type_from_queue_type(q->properties.type));
 	if (!mqd) {
 		retval = -ENOMEM;
@@ -1149,7 +1149,7 @@ static bool set_cache_memory_policy(struct device_queue_manager *dqm,
 		qpd->sh_mem_ape1_limit = limit >> 16;
 	}
 
-	retval = dqm->ops_asic_specific.set_cache_memory_policy(
+	retval = dqm->ops_asic_specific->set_cache_memory_policy(
 			dqm,
 			qpd,
 			default_policy,
@@ -1172,6 +1172,36 @@ out:
 	return false;
 }
 
+static const struct device_queue_manager_ops cp_dqm_ops = {
+	.create_queue = create_queue_cpsch,
+	.initialize = initialize_cpsch,
+	.start = start_cpsch,
+	.stop = stop_cpsch,
+	.destroy_queue = destroy_queue_cpsch,
+	.update_queue = update_queue,
+	.get_mqd_manager = get_mqd_manager_nocpsch,
+	.register_process = register_process_nocpsch,
+	.unregister_process = unregister_process_nocpsch,
+	.uninitialize = uninitialize_nocpsch,
+	.create_kernel_queue = create_kernel_queue_cpsch,
+	.destroy_kernel_queue = destroy_kernel_queue_cpsch,
+	.set_cache_memory_policy = set_cache_memory_policy,
+};
+
+static const struct device_queue_manager_ops no_cp_dqm_ops = {
+	.start = start_nocpsch,
+	.stop = stop_nocpsch,
+	.create_queue = create_queue_nocpsch,
+	.destroy_queue = destroy_queue_nocpsch,
+	.update_queue = update_queue,
+	.get_mqd_manager = get_mqd_manager_nocpsch,
+	.register_process = register_process_nocpsch,
+	.unregister_process = unregister_process_nocpsch,
+	.initialize = initialize_nocpsch,
+	.uninitialize = uninitialize_nocpsch,
+	.set_cache_memory_policy = set_cache_memory_policy,
+};
+
 struct device_queue_manager *device_queue_manager_init(struct kfd_dev *dev)
 {
 	struct device_queue_manager *dqm;
@@ -1189,33 +1219,11 @@ struct device_queue_manager *device_queue_manager_init(struct kfd_dev *dev)
 	case KFD_SCHED_POLICY_HWS:
 	case KFD_SCHED_POLICY_HWS_NO_OVERSUBSCRIPTION:
 		/* initialize dqm for cp scheduling */
-		dqm->ops.create_queue = create_queue_cpsch;
-		dqm->ops.initialize = initialize_cpsch;
-		dqm->ops.start = start_cpsch;
-		dqm->ops.stop = stop_cpsch;
-		dqm->ops.destroy_queue = destroy_queue_cpsch;
-		dqm->ops.update_queue = update_queue;
-		dqm->ops.get_mqd_manager = get_mqd_manager_nocpsch;
-		dqm->ops.register_process = register_process_nocpsch;
-		dqm->ops.unregister_process = unregister_process_nocpsch;
-		dqm->ops.uninitialize = uninitialize_nocpsch;
-		dqm->ops.create_kernel_queue = create_kernel_queue_cpsch;
-		dqm->ops.destroy_kernel_queue = destroy_kernel_queue_cpsch;
-		dqm->ops.set_cache_memory_policy = set_cache_memory_policy;
+		dqm->ops = &cp_dqm_ops;
 		break;
 	case KFD_SCHED_POLICY_NO_HWS:
 		/* initialize dqm for no cp scheduling */
-		dqm->ops.start = start_nocpsch;
-		dqm->ops.stop = stop_nocpsch;
-		dqm->ops.create_queue = create_queue_nocpsch;
-		dqm->ops.destroy_queue = destroy_queue_nocpsch;
-		dqm->ops.update_queue = update_queue;
-		dqm->ops.get_mqd_manager = get_mqd_manager_nocpsch;
-		dqm->ops.register_process = register_process_nocpsch;
-		dqm->ops.unregister_process = unregister_process_nocpsch;
-		dqm->ops.initialize = initialize_nocpsch;
-		dqm->ops.uninitialize = uninitialize_nocpsch;
-		dqm->ops.set_cache_memory_policy = set_cache_memory_policy;
+		dqm->ops = &no_cp_dqm_ops;
 		break;
 	default:
 		BUG();
@@ -1224,15 +1232,15 @@ struct device_queue_manager *device_queue_manager_init(struct kfd_dev *dev)
 
 	switch (dev->device_info->asic_family) {
 	case CHIP_CARRIZO:
-		device_queue_manager_init_vi(&dqm->ops_asic_specific);
+		device_queue_manager_init_vi(dqm);
 		break;
 
 	case CHIP_KAVERI:
-		device_queue_manager_init_cik(&dqm->ops_asic_specific);
+		device_queue_manager_init_cik(dqm);
 		break;
 	}
 
-	if (dqm->ops.initialize(dqm) != 0) {
+	if (dqm->ops->initialize(dqm) != 0) {
 		kfree(dqm);
 		return NULL;
 	}
@@ -1244,6 +1252,6 @@ void device_queue_manager_uninit(struct device_queue_manager *dqm)
 {
 	BUG_ON(!dqm);
 
-	dqm->ops.uninitialize(dqm);
+	dqm->ops->uninitialize(dqm);
 	kfree(dqm);
 }
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h
index ec4036a..a7800c0 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h
@@ -154,8 +154,8 @@ struct device_queue_manager_asic_ops {
  */
 
 struct device_queue_manager {
-	struct device_queue_manager_ops ops;
-	struct device_queue_manager_asic_ops ops_asic_specific;
+	const struct device_queue_manager_ops *ops;
+	const struct device_queue_manager_asic_ops *ops_asic_specific;
 
 	struct mqd_manager	*mqds[KFD_MQD_TYPE_MAX];
 	struct packet_manager	packets;
@@ -178,8 +178,8 @@ struct device_queue_manager {
 	bool			active_runlist;
 };
 
-void device_queue_manager_init_cik(struct device_queue_manager_asic_ops *ops);
-void device_queue_manager_init_vi(struct device_queue_manager_asic_ops *ops);
+void device_queue_manager_init_cik(struct device_queue_manager *dqm);
+void device_queue_manager_init_vi(struct device_queue_manager *dqm);
 void program_sh_mem_settings(struct device_queue_manager *dqm,
 					struct qcm_process_device *qpd);
 int init_pipelines(struct device_queue_manager *dqm,
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_cik.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_cik.c
index c6f435a..34fb247 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_cik.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_cik.c
@@ -37,12 +37,16 @@ static int initialize_cpsch_cik(struct device_queue_manager *dqm);
 static void init_sdma_vm(struct device_queue_manager *dqm, struct queue *q,
 				struct qcm_process_device *qpd);
 
-void device_queue_manager_init_cik(struct device_queue_manager_asic_ops *ops)
+static const struct device_queue_manager_asic_ops cik_dqm_asic_ops = {
+	.set_cache_memory_policy = set_cache_memory_policy_cik,
+	.register_process = register_process_cik,
+	.initialize = initialize_cpsch_cik,
+	.init_sdma_vm = init_sdma_vm,
+};
+
+void device_queue_manager_init_cik(struct device_queue_manager *dqm)
 {
-	ops->set_cache_memory_policy = set_cache_memory_policy_cik;
-	ops->register_process = register_process_cik;
-	ops->initialize = initialize_cpsch_cik;
-	ops->init_sdma_vm = init_sdma_vm;
+	dqm->ops_asic_specific = &cik_dqm_asic_ops;
 }
 
 static uint32_t compute_sh_mem_bases_64bit(unsigned int top_address_nybble)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_vi.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_vi.c
index 7e9cae9..fbe7ba5 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_vi.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_vi.c
@@ -39,12 +39,16 @@ static int initialize_cpsch_vi(struct device_queue_manager *dqm);
 static void init_sdma_vm(struct device_queue_manager *dqm, struct queue *q,
 				struct qcm_process_device *qpd);
 
-void device_queue_manager_init_vi(struct device_queue_manager_asic_ops *ops)
+static const struct device_queue_manager_asic_ops vi_dqm_asic_ops = {
+	.set_cache_memory_policy = set_cache_memory_policy_vi,
+	.register_process = register_process_vi,
+	.initialize = initialize_cpsch_vi,
+	.init_sdma_vm = init_sdma_vm,
+};
+
+void device_queue_manager_init_vi(struct device_queue_manager *dqm)
 {
-	ops->set_cache_memory_policy = set_cache_memory_policy_vi;
-	ops->register_process = register_process_vi;
-	ops->initialize = initialize_cpsch_vi;
-	ops->init_sdma_vm = init_sdma_vm;
+	dqm->ops_asic_specific = &vi_dqm_asic_ops;
 }
 
 static uint32_t compute_sh_mem_bases_64bit(unsigned int top_address_nybble)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_interrupt.c b/drivers/gpu/drm/amd/amdkfd/kfd_interrupt.c
index 7f134aa..cd34d4a 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_interrupt.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_interrupt.c
@@ -50,8 +50,8 @@ static void interrupt_wq(struct work_struct *);
 
 int kfd_interrupt_init(struct kfd_dev *kfd)
 {
-	void *interrupt_ring = kmalloc_array(KFD_INTERRUPT_RING_SIZE,
-					kfd->device_info->ih_ring_entry_size,
+	void *interrupt_ring = kmalloc_array(kfd->device_info->ih_ring_entry_size,
+					KFD_INTERRUPT_RING_SIZE,
 					GFP_KERNEL);
 	if (!interrupt_ring)
 		return -ENOMEM;
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c b/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c
index 8fa8941..5ae07df 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c
@@ -56,7 +56,7 @@ static bool initialize(struct kernel_queue *kq, struct kfd_dev *dev,
 	switch (type) {
 	case KFD_QUEUE_TYPE_DIQ:
 	case KFD_QUEUE_TYPE_HIQ:
-		kq->mqd = dev->dqm->ops.get_mqd_manager(dev->dqm,
+		kq->mqd = dev->dqm->ops->get_mqd_manager(dev->dqm,
 						KFD_MQD_TYPE_HIQ);
 		break;
 	default:
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.h b/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.h
index 5940531..a75b0e5 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.h
@@ -62,7 +62,7 @@ struct kernel_queue_ops {
 
 	void	(*submit_packet)(struct kernel_queue *kq);
 	void	(*rollback_packet)(struct kernel_queue *kq);
-};
+} __no_const;
 
 struct kernel_queue {
 	struct kernel_queue_ops ops;
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
index 7b69070..d7bd78b 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
@@ -194,7 +194,7 @@ int pqm_create_queue(struct process_queue_manager *pqm,
 
 	if (list_empty(&pqm->queues)) {
 		pdd->qpd.pqm = pqm;
-		dev->dqm->ops.register_process(dev->dqm, &pdd->qpd);
+		dev->dqm->ops->register_process(dev->dqm, &pdd->qpd);
 	}
 
 	pqn = kzalloc(sizeof(struct process_queue_node), GFP_KERNEL);
@@ -220,7 +220,7 @@ int pqm_create_queue(struct process_queue_manager *pqm,
 			goto err_create_queue;
 		pqn->q = q;
 		pqn->kq = NULL;
-		retval = dev->dqm->ops.create_queue(dev->dqm, q, &pdd->qpd,
+		retval = dev->dqm->ops->create_queue(dev->dqm, q, &pdd->qpd,
 						&q->properties.vmid);
 		pr_debug("DQM returned %d for create_queue\n", retval);
 		print_queue(q);
@@ -234,7 +234,7 @@ int pqm_create_queue(struct process_queue_manager *pqm,
 		kq->queue->properties.queue_id = *qid;
 		pqn->kq = kq;
 		pqn->q = NULL;
-		retval = dev->dqm->ops.create_kernel_queue(dev->dqm,
+		retval = dev->dqm->ops->create_kernel_queue(dev->dqm,
 							kq, &pdd->qpd);
 		break;
 	default:
@@ -265,7 +265,7 @@ err_allocate_pqn:
 	/* check if queues list is empty unregister process from device */
 	clear_bit(*qid, pqm->queue_slot_bitmap);
 	if (list_empty(&pqm->queues))
-		dev->dqm->ops.unregister_process(dev->dqm, &pdd->qpd);
+		dev->dqm->ops->unregister_process(dev->dqm, &pdd->qpd);
 	return retval;
 }
 
@@ -306,13 +306,13 @@ int pqm_destroy_queue(struct process_queue_manager *pqm, unsigned int qid)
 	if (pqn->kq) {
 		/* destroy kernel queue (DIQ) */
 		dqm = pqn->kq->dev->dqm;
-		dqm->ops.destroy_kernel_queue(dqm, pqn->kq, &pdd->qpd);
+		dqm->ops->destroy_kernel_queue(dqm, pqn->kq, &pdd->qpd);
 		kernel_queue_uninit(pqn->kq);
 	}
 
 	if (pqn->q) {
 		dqm = pqn->q->device->dqm;
-		retval = dqm->ops.destroy_queue(dqm, &pdd->qpd, pqn->q);
+		retval = dqm->ops->destroy_queue(dqm, &pdd->qpd, pqn->q);
 		if (retval != 0)
 			return retval;
 
@@ -324,7 +324,7 @@ int pqm_destroy_queue(struct process_queue_manager *pqm, unsigned int qid)
 	clear_bit(qid, pqm->queue_slot_bitmap);
 
 	if (list_empty(&pqm->queues))
-		dqm->ops.unregister_process(dqm, &pdd->qpd);
+		dqm->ops->unregister_process(dqm, &pdd->qpd);
 
 	return retval;
 }
@@ -349,7 +349,7 @@ int pqm_update_queue(struct process_queue_manager *pqm, unsigned int qid,
 	pqn->q->properties.queue_percent = p->queue_percent;
 	pqn->q->properties.priority = p->priority;
 
-	retval = pqn->q->device->dqm->ops.update_queue(pqn->q->device->dqm,
+	retval = pqn->q->device->dqm->ops->update_queue(pqn->q->device->dqm,
 							pqn->q);
 	if (retval != 0)
 		return retval;
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/cz_clockpowergating.c b/drivers/gpu/drm/amd/powerplay/hwmgr/cz_clockpowergating.c
index ff08ce4..5b8758f 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/cz_clockpowergating.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/cz_clockpowergating.c
@@ -239,10 +239,16 @@ int cz_dpm_powergate_vce(struct pp_hwmgr *hwmgr, bool bgate)
 
 static struct phm_master_table_item cz_enable_clock_power_gatings_list[] = {
 	/*we don't need an exit table here, because there is only D3 cold on Kv*/
-	{ phm_cf_want_uvd_power_gating, cz_tf_uvd_power_gating_initialize },
-	{ phm_cf_want_vce_power_gating, cz_tf_vce_power_gating_initialize },
+	{
+	  .isFunctionNeededInRuntimeTable = phm_cf_want_uvd_power_gating,
+	  .tableFunction = cz_tf_uvd_power_gating_initialize
+	},
+	{
+	  .isFunctionNeededInRuntimeTable = phm_cf_want_vce_power_gating,
+	  .tableFunction = cz_tf_vce_power_gating_initialize
+	},
 	/* to do { NULL, cz_tf_xdma_power_gating_enable }, */
-	{ NULL, NULL }
+	{ }
 };
 
 struct phm_master_table_header cz_phm_enable_clock_power_gatings_master = {
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c
index 5682490..bec743b 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c
@@ -916,13 +916,13 @@ static int cz_tf_update_low_mem_pstate(struct pp_hwmgr *hwmgr,
 }
 
 static struct phm_master_table_item cz_set_power_state_list[] = {
-	{NULL, cz_tf_update_sclk_limit},
-	{NULL, cz_tf_set_deep_sleep_sclk_threshold},
-	{NULL, cz_tf_set_watermark_threshold},
-	{NULL, cz_tf_set_enabled_levels},
-	{NULL, cz_tf_enable_nb_dpm},
-	{NULL, cz_tf_update_low_mem_pstate},
-	{NULL, NULL}
+	{ .tableFunction = cz_tf_update_sclk_limit },
+	{ .tableFunction = cz_tf_set_deep_sleep_sclk_threshold },
+	{ .tableFunction = cz_tf_set_watermark_threshold },
+	{ .tableFunction = cz_tf_set_enabled_levels },
+	{ .tableFunction = cz_tf_enable_nb_dpm },
+	{ .tableFunction = cz_tf_update_low_mem_pstate },
+	{ }
 };
 
 static struct phm_master_table_header cz_set_power_state_master = {
@@ -932,15 +932,15 @@ static struct phm_master_table_header cz_set_power_state_master = {
 };
 
 static struct phm_master_table_item cz_setup_asic_list[] = {
-	{NULL, cz_tf_reset_active_process_mask},
-	{NULL, cz_tf_upload_pptable_to_smu},
-	{NULL, cz_tf_init_sclk_limit},
-	{NULL, cz_tf_init_uvd_limit},
-	{NULL, cz_tf_init_vce_limit},
-	{NULL, cz_tf_init_acp_limit},
-	{NULL, cz_tf_init_power_gate_state},
-	{NULL, cz_tf_init_sclk_threshold},
-	{NULL, NULL}
+	{ .tableFunction = cz_tf_reset_active_process_mask },
+	{ .tableFunction = cz_tf_upload_pptable_to_smu },
+	{ .tableFunction = cz_tf_init_sclk_limit },
+	{ .tableFunction = cz_tf_init_uvd_limit },
+	{ .tableFunction = cz_tf_init_vce_limit },
+	{ .tableFunction = cz_tf_init_acp_limit },
+	{ .tableFunction = cz_tf_init_power_gate_state },
+	{ .tableFunction = cz_tf_init_sclk_threshold },
+	{ }
 };
 
 static struct phm_master_table_header cz_setup_asic_master = {
@@ -985,10 +985,10 @@ static int cz_tf_reset_cc6_data(struct pp_hwmgr *hwmgr,
 }
 
 static struct phm_master_table_item cz_power_down_asic_list[] = {
-	{NULL, cz_tf_power_up_display_clock_sys_pll},
-	{NULL, cz_tf_clear_nb_dpm_flag},
-	{NULL, cz_tf_reset_cc6_data},
-	{NULL, NULL}
+	{ .tableFunction = cz_tf_power_up_display_clock_sys_pll },
+	{ .tableFunction = cz_tf_clear_nb_dpm_flag },
+	{ .tableFunction = cz_tf_reset_cc6_data },
+	{ }
 };
 
 static struct phm_master_table_header cz_power_down_asic_master = {
@@ -1096,8 +1096,8 @@ static int cz_tf_check_for_dpm_enabled(struct pp_hwmgr *hwmgr,
 }
 
 static struct phm_master_table_item cz_disable_dpm_list[] = {
-	{ NULL, cz_tf_check_for_dpm_enabled},
-	{NULL, NULL},
+	{ .tableFunction = cz_tf_check_for_dpm_enabled },
+	{ },
 };
 
 
@@ -1108,13 +1108,13 @@ static struct phm_master_table_header cz_disable_dpm_master = {
 };
 
 static struct phm_master_table_item cz_enable_dpm_list[] = {
-	{ NULL, cz_tf_check_for_dpm_disabled },
-	{ NULL, cz_tf_program_voting_clients },
-	{ NULL, cz_tf_start_dpm},
-	{ NULL, cz_tf_program_bootup_state},
-	{ NULL, cz_tf_enable_didt },
-	{ NULL, cz_tf_reset_acp_boot_level },
-	{NULL, NULL},
+	{ .tableFunction = cz_tf_check_for_dpm_disabled },
+	{ .tableFunction = cz_tf_program_voting_clients },
+	{ .tableFunction = cz_tf_start_dpm },
+	{ .tableFunction = cz_tf_program_bootup_state },
+	{ .tableFunction = cz_tf_enable_didt },
+	{ .tableFunction = cz_tf_reset_acp_boot_level },
+	{ },
 };
 
 static struct phm_master_table_header cz_enable_dpm_master = {
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/fiji_thermal.c b/drivers/gpu/drm/amd/powerplay/hwmgr/fiji_thermal.c
index e76a7de..ae5fb7e 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/fiji_thermal.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/fiji_thermal.c
@@ -617,17 +617,17 @@ static int tf_fiji_thermal_disable_alert(struct pp_hwmgr *hwmgr,
 
 static struct phm_master_table_item
 fiji_thermal_start_thermal_controller_master_list[] = {
-	{NULL, tf_fiji_thermal_initialize},
-	{NULL, tf_fiji_thermal_set_temperature_range},
-	{NULL, tf_fiji_thermal_enable_alert},
+	{ .tableFunction = tf_fiji_thermal_initialize},
+	{ .tableFunction = tf_fiji_thermal_set_temperature_range},
+	{ .tableFunction = tf_fiji_thermal_enable_alert},
 /* We should restrict performance levels to low before we halt the SMC.
  * On the other hand we are still in boot state when we do this
  * so it would be pointless.
  * If this assumption changes we have to revisit this table.
  */
-	{NULL, tf_fiji_thermal_setup_fan_table},
-	{NULL, tf_fiji_thermal_start_smc_fan_control},
-	{NULL, NULL}
+	{ .tableFunction = tf_fiji_thermal_setup_fan_table},
+	{ .tableFunction = tf_fiji_thermal_start_smc_fan_control},
+	{ }
 };
 
 static struct phm_master_table_header
@@ -639,10 +639,10 @@ fiji_thermal_start_thermal_controller_master = {
 
 static struct phm_master_table_item
 fiji_thermal_set_temperature_range_master_list[] = {
-	{NULL, tf_fiji_thermal_disable_alert},
-	{NULL, tf_fiji_thermal_set_temperature_range},
-	{NULL, tf_fiji_thermal_enable_alert},
-	{NULL, NULL}
+	{ .tableFunction = tf_fiji_thermal_disable_alert},
+	{ .tableFunction = tf_fiji_thermal_set_temperature_range},
+	{ .tableFunction = tf_fiji_thermal_enable_alert},
+	{ }
 };
 
 struct phm_master_table_header
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_thermal.c b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_thermal.c
index a188174..74acdc0 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_thermal.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_thermal.c
@@ -526,16 +526,16 @@ static int tf_tonga_thermal_disable_alert(struct pp_hwmgr *hwmgr, void *input, v
 }
 
 static struct phm_master_table_item tonga_thermal_start_thermal_controller_master_list[] = {
-	{ NULL, tf_tonga_thermal_initialize },
-	{ NULL, tf_tonga_thermal_set_temperature_range },
-	{ NULL, tf_tonga_thermal_enable_alert },
+	{ .tableFunction = tf_tonga_thermal_initialize },
+	{ .tableFunction = tf_tonga_thermal_set_temperature_range },
+	{ .tableFunction = tf_tonga_thermal_enable_alert },
 /* We should restrict performance levels to low before we halt the SMC.
  * On the other hand we are still in boot state when we do this so it would be pointless.
  * If this assumption changes we have to revisit this table.
  */
-	{ NULL, tf_tonga_thermal_setup_fan_table},
-	{ NULL, tf_tonga_thermal_start_smc_fan_control},
-	{ NULL, NULL }
+	{ .tableFunction = tf_tonga_thermal_setup_fan_table},
+	{ .tableFunction = tf_tonga_thermal_start_smc_fan_control},
+	{ }
 };
 
 static struct phm_master_table_header tonga_thermal_start_thermal_controller_master = {
@@ -545,10 +545,10 @@ static struct phm_master_table_header tonga_thermal_start_thermal_controller_mas
 };
 
 static struct phm_master_table_item tonga_thermal_set_temperature_range_master_list[] = {
-	{ NULL, tf_tonga_thermal_disable_alert},
-	{ NULL, tf_tonga_thermal_set_temperature_range},
-	{ NULL, tf_tonga_thermal_enable_alert},
-	{ NULL, NULL }
+	{ .tableFunction = tf_tonga_thermal_disable_alert},
+	{ .tableFunction = tf_tonga_thermal_set_temperature_range},
+	{ .tableFunction = tf_tonga_thermal_enable_alert},
+	{ }
 };
 
 struct phm_master_table_header tonga_thermal_set_temperature_range_master = {
diff --git a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
index a5ff945..78ff889 100644
--- a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
+++ b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
@@ -139,7 +139,7 @@ int amd_sched_entity_init(struct amd_gpu_scheduler *sched,
 	if (r)
 		return r;
 
-	atomic_set(&entity->fence_seq, 0);
+	atomic_set_unchecked(&entity->fence_seq, 0);
 	entity->fence_context = fence_context_alloc(1);
 
 	return 0;
diff --git a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h
index 9403145..b8842f1 100644
--- a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h
+++ b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h
@@ -49,7 +49,7 @@ struct amd_sched_entity {
 	spinlock_t			queue_lock;
 	struct kfifo                    job_queue;
 
-	atomic_t			fence_seq;
+	atomic_unchecked_t		fence_seq;
 	uint64_t                        fence_context;
 
 	struct fence			*dependency;
diff --git a/drivers/gpu/drm/amd/scheduler/sched_fence.c b/drivers/gpu/drm/amd/scheduler/sched_fence.c
index dc115ae..7ecd14b 100644
--- a/drivers/gpu/drm/amd/scheduler/sched_fence.c
+++ b/drivers/gpu/drm/amd/scheduler/sched_fence.c
@@ -41,7 +41,7 @@ struct amd_sched_fence *amd_sched_fence_create(struct amd_sched_entity *s_entity
 	fence->sched = s_entity->sched;
 	spin_lock_init(&fence->lock);
 
-	seq = atomic_inc_return(&s_entity->fence_seq);
+	seq = atomic_inc_return_unchecked(&s_entity->fence_seq);
 	fence_init(&fence->base, &amd_sched_fence_ops, &fence->lock,
 		   s_entity->fence_context, seq);
 
diff --git a/drivers/gpu/drm/armada/armada_drv.c b/drivers/gpu/drm/armada/armada_drv.c
index 82043c2..92ebd4e 100644
--- a/drivers/gpu/drm/armada/armada_drv.c
+++ b/drivers/gpu/drm/armada/armada_drv.c
@@ -215,6 +215,7 @@ static struct drm_driver armada_drm_driver = {
 	.driver_features	= DRIVER_GEM | DRIVER_MODESET |
 				  DRIVER_HAVE_IRQ | DRIVER_PRIME,
 	.ioctls			= armada_ioctls,
+	.num_ioctls		= ARRAY_SIZE(armada_ioctls),
 	.fops			= &armada_drm_fops,
 };
 
@@ -335,8 +336,6 @@ static int __init armada_drm_init(void)
 {
 	int ret;
 
-	armada_drm_driver.num_ioctls = ARRAY_SIZE(armada_ioctls);
-
 	ret = platform_driver_register(&armada_lcd_platform_driver);
 	if (ret)
 		return ret;
diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index a965e7e..5ba937e 100644
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -773,7 +773,7 @@ static int ast_get_modes(struct drm_connector *connector)
 	return 0;
 }
 
-static int ast_mode_valid(struct drm_connector *connector,
+static enum drm_mode_status ast_mode_valid(struct drm_connector *connector,
 			  struct drm_display_mode *mode)
 {
 	struct ast_private *ast = connector->dev->dev_private;
diff --git a/drivers/gpu/drm/bochs/bochs_kms.c b/drivers/gpu/drm/bochs/bochs_kms.c
index 96926f0..69097ba 100644
--- a/drivers/gpu/drm/bochs/bochs_kms.c
+++ b/drivers/gpu/drm/bochs/bochs_kms.c
@@ -194,7 +194,7 @@ int bochs_connector_get_modes(struct drm_connector *connector)
 	return count;
 }
 
-static int bochs_connector_mode_valid(struct drm_connector *connector,
+static enum drm_mode_status bochs_connector_mode_valid(struct drm_connector *connector,
 				      struct drm_display_mode *mode)
 {
 	struct bochs_device *bochs =
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index f30de80..7893e10 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -4258,7 +4258,7 @@ int drm_mode_getproperty_ioctl(struct drm_device *dev,
 					goto done;
 				}
 
-				if (copy_to_user(&enum_ptr[copied].name,
+				if (copy_to_user(enum_ptr[copied].name,
 						 &prop_enum->name, DRM_PROP_NAME_LEN)) {
 					ret = -EFAULT;
 					goto done;
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 167c8d3..bf13708 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -467,7 +467,7 @@ void drm_unplug_dev(struct drm_device *dev)
 
 	drm_device_set_unplugged(dev);
 
-	if (dev->open_count == 0) {
+	if (local_read(&dev->open_count) == 0) {
 		drm_put_dev(dev);
 	}
 	mutex_unlock(&drm_global_mutex);
diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index aeef58e..1594209 100644
--- a/drivers/gpu/drm/drm_fops.c
+++ b/drivers/gpu/drm/drm_fops.c
@@ -131,7 +131,7 @@ int drm_open(struct inode *inode, struct file *filp)
 		return PTR_ERR(minor);
 
 	dev = minor->dev;
-	if (!dev->open_count++)
+	if (local_inc_return(&dev->open_count) == 1)
 		need_setup = 1;
 
 	/* share address_space across all char-devs of a single device */
@@ -148,7 +148,7 @@ int drm_open(struct inode *inode, struct file *filp)
 	return 0;
 
 err_undo:
-	dev->open_count--;
+	local_dec(&dev->open_count);
 	drm_minor_release(minor);
 	return retcode;
 }
@@ -449,7 +449,7 @@ int drm_release(struct inode *inode, struct file *filp)
 
 	mutex_lock(&drm_global_mutex);
 
-	DRM_DEBUG("open_count = %d\n", dev->open_count);
+	DRM_DEBUG("open_count = %ld\n", local_read(&dev->open_count));
 
 	mutex_lock(&dev->struct_mutex);
 	list_del(&file_priv->lhead);
@@ -464,10 +464,10 @@ int drm_release(struct inode *inode, struct file *filp)
 	 * Begin inline drm_release
 	 */
 
-	DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n",
+	DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %ld\n",
 		  task_pid_nr(current),
 		  (long)old_encode_dev(file_priv->minor->kdev->devt),
-		  dev->open_count);
+		  local_read(&dev->open_count));
 
 	/* if the master has gone away we can't do anything with the lock */
 	if (file_priv->minor->master)
@@ -537,7 +537,7 @@ int drm_release(struct inode *inode, struct file *filp)
 	 * End inline drm_release
 	 */
 
-	if (!--dev->open_count) {
+	if (local_dec_and_test(&dev->open_count)) {
 		retcode = drm_lastclose(dev);
 		if (drm_device_is_unplugged(dev))
 			drm_put_dev(dev);
@@ -676,6 +676,11 @@ unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait)
 }
 EXPORT_SYMBOL(drm_poll);
 
+static void drm_pending_event_destroy(struct drm_pending_event *event)
+{
+	kfree(event);
+}
+
 /**
  * drm_event_reserve_init_locked - init a DRM event and reserve space for it
  * @dev: DRM device
@@ -715,7 +720,7 @@ int drm_event_reserve_init_locked(struct drm_device *dev,
 	p->file_priv = file_priv;
 
 	/* we *could* pass this in as arg, but everyone uses kfree: */
-	p->destroy = (void (*) (struct drm_pending_event *)) kfree;
+	p->destroy = drm_pending_event_destroy;
 
 	return 0;
 }
diff --git a/drivers/gpu/drm/drm_global.c b/drivers/gpu/drm/drm_global.c
index 3d2e91c..d31c4c9 100644
--- a/drivers/gpu/drm/drm_global.c
+++ b/drivers/gpu/drm/drm_global.c
@@ -36,7 +36,7 @@
 struct drm_global_item {
 	struct mutex mutex;
 	void *object;
-	int refcount;
+	atomic_t refcount;
 };
 
 static struct drm_global_item glob[DRM_GLOBAL_NUM];
@@ -49,7 +49,7 @@ void drm_global_init(void)
 		struct drm_global_item *item = &glob[i];
 		mutex_init(&item->mutex);
 		item->object = NULL;
-		item->refcount = 0;
+		atomic_set(&item->refcount, 0);
 	}
 }
 
@@ -59,7 +59,7 @@ void drm_global_release(void)
 	for (i = 0; i < DRM_GLOBAL_NUM; ++i) {
 		struct drm_global_item *item = &glob[i];
 		BUG_ON(item->object != NULL);
-		BUG_ON(item->refcount != 0);
+		BUG_ON(atomic_read(&item->refcount) != 0);
 	}
 }
 
@@ -69,7 +69,7 @@ int drm_global_item_ref(struct drm_global_reference *ref)
 	struct drm_global_item *item = &glob[ref->global_type];
 
 	mutex_lock(&item->mutex);
-	if (item->refcount == 0) {
+	if (atomic_read(&item->refcount) == 0) {
 		item->object = kzalloc(ref->size, GFP_KERNEL);
 		if (unlikely(item->object == NULL)) {
 			ret = -ENOMEM;
@@ -82,7 +82,7 @@ int drm_global_item_ref(struct drm_global_reference *ref)
 			goto out_err;
 
 	}
-	++item->refcount;
+	atomic_inc(&item->refcount);
 	ref->object = item->object;
 	mutex_unlock(&item->mutex);
 	return 0;
@@ -98,9 +98,9 @@ void drm_global_item_unref(struct drm_global_reference *ref)
 	struct drm_global_item *item = &glob[ref->global_type];
 
 	mutex_lock(&item->mutex);
-	BUG_ON(item->refcount == 0);
+	BUG_ON(atomic_read(&item->refcount) == 0);
 	BUG_ON(ref->object != item->object);
-	if (--item->refcount == 0) {
+	if (atomic_dec_and_test(&item->refcount)) {
 		ref->release(ref);
 		item->object = NULL;
 	}
diff --git a/drivers/gpu/drm/drm_info.c b/drivers/gpu/drm/drm_info.c
index cbb4fc0..5c756cb9 100644
--- a/drivers/gpu/drm/drm_info.c
+++ b/drivers/gpu/drm/drm_info.c
@@ -77,10 +77,13 @@ int drm_vm_info(struct seq_file *m, void *data)
 	struct drm_local_map *map;
 	struct drm_map_list *r_list;
 
-	/* Hardcoded from _DRM_FRAME_BUFFER,
-	   _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and
-	   _DRM_SCATTER_GATHER and _DRM_CONSISTENT */
-	const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" };
+	static const char * const types[] = {
+		[_DRM_FRAME_BUFFER] = "FB",
+		[_DRM_REGISTERS] = "REG",
+		[_DRM_SHM] = "SHM",
+		[_DRM_AGP] = "AGP",
+		[_DRM_SCATTER_GATHER] = "SG",
+		[_DRM_CONSISTENT] = "PCI"};
 	const char *type;
 	int i;
 
@@ -91,7 +94,7 @@ int drm_vm_info(struct seq_file *m, void *data)
 		map = r_list->map;
 		if (!map)
 			continue;
-		if (map->type < 0 || map->type > 5)
+		if (map->type >= ARRAY_SIZE(types))
 			type = "??";
 		else
 			type = types[map->type];
diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c
index 57676f8..020e7ca 100644
--- a/drivers/gpu/drm/drm_ioc32.c
+++ b/drivers/gpu/drm/drm_ioc32.c
@@ -458,7 +458,7 @@ static int compat_drm_infobufs(struct file *file, unsigned int cmd,
 	request = compat_alloc_user_space(nbytes);
 	if (!request)
 		return -EFAULT;
-	list = (struct drm_buf_desc *) (request + 1);
+	list = (struct drm_buf_desc __user *) (request + 1);
 
 	if (__put_user(count, &request->count)
 	    || __put_user(list, &request->list))
@@ -519,7 +519,7 @@ static int compat_drm_mapbufs(struct file *file, unsigned int cmd,
 	request = compat_alloc_user_space(nbytes);
 	if (!request)
 		return -EFAULT;
-	list = (struct drm_buf_pub *) (request + 1);
+	list = (struct drm_buf_pub __user *) (request + 1);
 
 	if (__put_user(count, &request->count)
 	    || __put_user(list, &request->list))
@@ -1072,7 +1072,7 @@ static int compat_drm_mode_addfb2(struct file *file, unsigned int cmd,
 	return 0;
 }
 
-static drm_ioctl_compat_t *drm_compat_ioctls[] = {
+static drm_ioctl_compat_t drm_compat_ioctls[] = {
 	[DRM_IOCTL_NR(DRM_IOCTL_VERSION32)] = compat_drm_version,
 	[DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE32)] = compat_drm_getunique,
 	[DRM_IOCTL_NR(DRM_IOCTL_GET_MAP32)] = compat_drm_getmap,
@@ -1119,7 +1119,6 @@ static drm_ioctl_compat_t *drm_compat_ioctls[] = {
 long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
 	unsigned int nr = DRM_IOCTL_NR(cmd);
-	drm_ioctl_compat_t *fn;
 	int ret;
 
 	/* Assume that ioctls without an explicit compat routine will just
@@ -1129,10 +1128,8 @@ long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 	if (nr >= ARRAY_SIZE(drm_compat_ioctls))
 		return drm_ioctl(filp, cmd, arg);
 
-	fn = drm_compat_ioctls[nr];
-
-	if (fn != NULL)
-		ret = (*fn) (filp, cmd, arg);
+	if (drm_compat_ioctls[nr] != NULL)
+		ret = (*drm_compat_ioctls[nr]) (filp, cmd, arg);
 	else
 		ret = drm_ioctl(filp, cmd, arg);
 
diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index 8ce2a0c..d09a8f6 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -685,7 +685,7 @@ long drm_ioctl(struct file *filp,
 	struct drm_file *file_priv = filp->private_data;
 	struct drm_device *dev;
 	const struct drm_ioctl_desc *ioctl = NULL;
-	drm_ioctl_t *func;
+	drm_ioctl_no_const_t func;
 	unsigned int nr = DRM_IOCTL_NR(cmd);
 	int retcode = -EINVAL;
 	char stack_kdata[128];
diff --git a/drivers/gpu/drm/drm_pci.c b/drivers/gpu/drm/drm_pci.c
index a1fff11..425c24b 100644
--- a/drivers/gpu/drm/drm_pci.c
+++ b/drivers/gpu/drm/drm_pci.c
@@ -308,7 +308,7 @@ int drm_get_pci_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
 	/* No locking needed since shadow-attach is single-threaded since it may
 	 * only be called from the per-driver module init hook. */
 	if (!drm_core_check_feature(dev, DRIVER_MODESET))
-		list_add_tail(&dev->legacy_dev_list, &driver->legacy_dev_list);
+		pax_list_add_tail(&dev->legacy_dev_list, (struct list_head *)&driver->legacy_dev_list);
 
 	return 0;
 
@@ -347,7 +347,10 @@ int drm_pci_init(struct drm_driver *driver, struct pci_driver *pdriver)
 		return pci_register_driver(pdriver);
 
 	/* If not using KMS, fall back to stealth mode manual scanning. */
-	INIT_LIST_HEAD(&driver->legacy_dev_list);
+	pax_open_kernel();
+	INIT_LIST_HEAD((struct list_head *)&driver->legacy_dev_list);
+	pax_close_kernel();
+
 	for (i = 0; pdriver->id_table[i].vendor != 0; i++) {
 		pid = &pdriver->id_table[i];
 
@@ -477,7 +480,7 @@ void drm_pci_exit(struct drm_driver *driver, struct pci_driver *pdriver)
 	} else {
 		list_for_each_entry_safe(dev, tmp, &driver->legacy_dev_list,
 					 legacy_dev_list) {
-			list_del(&dev->legacy_dev_list);
+			pax_list_del(&dev->legacy_dev_list);
 			drm_put_dev(dev);
 		}
 	}
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index 5344940..3764f99 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -605,7 +605,6 @@ static int exynos_drm_platform_probe(struct platform_device *pdev)
 	struct component_match *match;
 
 	pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
-	exynos_drm_driver.num_ioctls = ARRAY_SIZE(exynos_ioctls);
 
 	match = exynos_drm_match_add(&pdev->dev);
 	if (IS_ERR(match))
diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
index 193d360..3dd24ce 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
@@ -1057,6 +1057,11 @@ int exynos_g2d_get_ver_ioctl(struct drm_device *drm_dev, void *data,
 	return 0;
 }
 
+static void exynos_g2d_dmabuf_destroy(struct drm_pending_event *event)
+{
+	kfree(event);
+}
+
 int exynos_g2d_set_cmdlist_ioctl(struct drm_device *drm_dev, void *data,
 				 struct drm_file *file)
 {
diff --git a/drivers/gpu/drm/gma500/cdv_intel_crt.c b/drivers/gpu/drm/gma500/cdv_intel_crt.c
index b837e7a..cb5a14b 100644
--- a/drivers/gpu/drm/gma500/cdv_intel_crt.c
+++ b/drivers/gpu/drm/gma500/cdv_intel_crt.c
@@ -64,7 +64,7 @@ static void cdv_intel_crt_dpms(struct drm_encoder *encoder, int mode)
 	REG_WRITE(reg, temp);
 }
 
-static int cdv_intel_crt_mode_valid(struct drm_connector *connector,
+static enum drm_mode_status cdv_intel_crt_mode_valid(struct drm_connector *connector,
 				struct drm_display_mode *mode)
 {
 	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
diff --git a/drivers/gpu/drm/gma500/cdv_intel_dp.c b/drivers/gpu/drm/gma500/cdv_intel_dp.c
index c52f9ad..486d203 100644
--- a/drivers/gpu/drm/gma500/cdv_intel_dp.c
+++ b/drivers/gpu/drm/gma500/cdv_intel_dp.c
@@ -505,7 +505,7 @@ static void cdv_intel_edp_backlight_off (struct gma_encoder *intel_encoder)
 	msleep(intel_dp->backlight_off_delay);
 }
 
-static int
+static enum drm_mode_status
 cdv_intel_dp_mode_valid(struct drm_connector *connector,
 		    struct drm_display_mode *mode)
 {
diff --git a/drivers/gpu/drm/gma500/cdv_intel_hdmi.c b/drivers/gpu/drm/gma500/cdv_intel_hdmi.c
index 28f9d90..fbb7883 100644
--- a/drivers/gpu/drm/gma500/cdv_intel_hdmi.c
+++ b/drivers/gpu/drm/gma500/cdv_intel_hdmi.c
@@ -223,7 +223,7 @@ static int cdv_hdmi_get_modes(struct drm_connector *connector)
 	return ret;
 }
 
-static int cdv_hdmi_mode_valid(struct drm_connector *connector,
+static enum drm_mode_status cdv_hdmi_mode_valid(struct drm_connector *connector,
 				 struct drm_display_mode *mode)
 {
 	if (mode->clock > 165000)
diff --git a/drivers/gpu/drm/gma500/cdv_intel_lvds.c b/drivers/gpu/drm/gma500/cdv_intel_lvds.c
index 813ef23..17928d6 100644
--- a/drivers/gpu/drm/gma500/cdv_intel_lvds.c
+++ b/drivers/gpu/drm/gma500/cdv_intel_lvds.c
@@ -244,7 +244,7 @@ static void cdv_intel_lvds_restore(struct drm_connector *connector)
 {
 }
 
-static int cdv_intel_lvds_mode_valid(struct drm_connector *connector,
+static enum drm_mode_status cdv_intel_lvds_mode_valid(struct drm_connector *connector,
 			      struct drm_display_mode *mode)
 {
 	struct drm_device *dev = connector->dev;
diff --git a/drivers/gpu/drm/gma500/mdfld_dsi_dpi.c b/drivers/gpu/drm/gma500/mdfld_dsi_dpi.c
index 7cd87a0..9b8a71f 100644
--- a/drivers/gpu/drm/gma500/mdfld_dsi_dpi.c
+++ b/drivers/gpu/drm/gma500/mdfld_dsi_dpi.c
@@ -120,9 +120,14 @@ static void dsi_set_pipe_plane_enable_state(struct drm_device *dev,
 	u32 pipeconf_reg = PIPEACONF;
 	u32 dspcntr_reg = DSPACNTR;
 
-	u32 dspcntr = dev_priv->dspcntr[pipe];
+	u32 dspcntr;
 	u32 mipi = MIPI_PORT_EN | PASS_FROM_SPHY_TO_AFE | SEL_FLOPPED_HSTX;
 
+	if (pipe == -1)
+		return;
+
+	dspcntr = dev_priv->dspcntr[pipe];
+
 	if (pipe) {
 		pipeconf_reg = PIPECCONF;
 		dspcntr_reg = DSPCCNTR;
@@ -645,6 +650,9 @@ static void mdfld_dsi_dpi_set_power(struct drm_encoder *encoder, bool on)
 	if (!gma_power_begin(dev, true))
 		return;
 
+	if (pipe == -1)
+		return;
+
 	if (on) {
 		if (mdfld_get_panel_type(dev, pipe) == TMD_VID)
 			mdfld_dsi_dpi_turn_on(dpi_output, pipe);
diff --git a/drivers/gpu/drm/gma500/mdfld_dsi_output.c b/drivers/gpu/drm/gma500/mdfld_dsi_output.c
index 907cb51..ae6f60c 100644
--- a/drivers/gpu/drm/gma500/mdfld_dsi_output.c
+++ b/drivers/gpu/drm/gma500/mdfld_dsi_output.c
@@ -351,7 +351,7 @@ static int mdfld_dsi_connector_get_modes(struct drm_connector *connector)
 	return 0;
 }
 
-static int mdfld_dsi_connector_mode_valid(struct drm_connector *connector,
+static enum drm_mode_status mdfld_dsi_connector_mode_valid(struct drm_connector *connector,
 						struct drm_display_mode *mode)
 {
 	struct mdfld_dsi_connector *dsi_connector =
diff --git a/drivers/gpu/drm/gma500/oaktrail_hdmi.c b/drivers/gpu/drm/gma500/oaktrail_hdmi.c
index 8b2eb32..78566a8 100644
--- a/drivers/gpu/drm/gma500/oaktrail_hdmi.c
+++ b/drivers/gpu/drm/gma500/oaktrail_hdmi.c
@@ -509,7 +509,7 @@ static void oaktrail_hdmi_dpms(struct drm_encoder *encoder, int mode)
 	HDMI_WRITE(HDMI_VIDEO_REG, temp);
 }
 
-static int oaktrail_hdmi_mode_valid(struct drm_connector *connector,
+static enum drm_mode_status oaktrail_hdmi_mode_valid(struct drm_connector *connector,
 				struct drm_display_mode *mode)
 {
 	if (mode->clock > 165000)
diff --git a/drivers/gpu/drm/gma500/psb_drv.c b/drivers/gpu/drm/gma500/psb_drv.c
index 4e1c685..c67f299f 100644
--- a/drivers/gpu/drm/gma500/psb_drv.c
+++ b/drivers/gpu/drm/gma500/psb_drv.c
@@ -376,7 +376,6 @@ static int psb_driver_load(struct drm_device *dev, unsigned long flags)
 
 	dev->vblank_disable_allowed = true;
 	dev->max_vblank_count = 0xffffff; /* only 24 bits of frame count */
-	dev->driver->get_vblank_counter = psb_get_vblank_counter;
 
 	psb_modeset_init(dev);
 	psb_fbdev_init(dev);
diff --git a/drivers/gpu/drm/gma500/psb_intel_drv.h b/drivers/gpu/drm/gma500/psb_intel_drv.h
index 2a3b7c6..fbd3fa3 100644
--- a/drivers/gpu/drm/gma500/psb_intel_drv.h
+++ b/drivers/gpu/drm/gma500/psb_intel_drv.h
@@ -255,7 +255,7 @@ extern int intelfb_remove(struct drm_device *dev,
 extern bool psb_intel_lvds_mode_fixup(struct drm_encoder *encoder,
 				      const struct drm_display_mode *mode,
 				      struct drm_display_mode *adjusted_mode);
-extern int psb_intel_lvds_mode_valid(struct drm_connector *connector,
+extern enum drm_mode_status psb_intel_lvds_mode_valid(struct drm_connector *connector,
 				     struct drm_display_mode *mode);
 extern int psb_intel_lvds_set_property(struct drm_connector *connector,
 					struct drm_property *property,
diff --git a/drivers/gpu/drm/gma500/psb_intel_lvds.c b/drivers/gpu/drm/gma500/psb_intel_lvds.c
index b1b9331..6b254ef 100644
--- a/drivers/gpu/drm/gma500/psb_intel_lvds.c
+++ b/drivers/gpu/drm/gma500/psb_intel_lvds.c
@@ -343,7 +343,7 @@ static void psb_intel_lvds_restore(struct drm_connector *connector)
 	}
 }
 
-int psb_intel_lvds_mode_valid(struct drm_connector *connector,
+enum drm_mode_status psb_intel_lvds_mode_valid(struct drm_connector *connector,
 				 struct drm_display_mode *mode)
 {
 	struct drm_psb_private *dev_priv = connector->dev->dev_private;
diff --git a/drivers/gpu/drm/gma500/psb_intel_sdvo.c b/drivers/gpu/drm/gma500/psb_intel_sdvo.c
index e787d37..91622fd 100644
--- a/drivers/gpu/drm/gma500/psb_intel_sdvo.c
+++ b/drivers/gpu/drm/gma500/psb_intel_sdvo.c
@@ -1158,7 +1158,7 @@ static void psb_intel_sdvo_dpms(struct drm_encoder *encoder, int mode)
 	return;
 }
 
-static int psb_intel_sdvo_mode_valid(struct drm_connector *connector,
+static enum drm_mode_status psb_intel_sdvo_mode_valid(struct drm_connector *connector,
 				 struct drm_display_mode *mode)
 {
 	struct psb_intel_sdvo *psb_intel_sdvo = intel_attached_sdvo(connector);
diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c
index f4315bc..2048cc2 100644
--- a/drivers/gpu/drm/i2c/tda998x_drv.c
+++ b/drivers/gpu/drm/i2c/tda998x_drv.c
@@ -856,7 +856,7 @@ static void tda998x_encoder_dpms(struct drm_encoder *encoder, int mode)
 	priv->dpms = mode;
 }
 
-static int tda998x_connector_mode_valid(struct drm_connector *connector,
+static enum drm_mode_status tda998x_connector_mode_valid(struct drm_connector *connector,
 					struct drm_display_mode *mode)
 {
 	/* TDA19988 dotclock can go up to 165MHz */
diff --git a/drivers/gpu/drm/i810/i810_dma.c b/drivers/gpu/drm/i810/i810_dma.c
index d918567..6cfd904 100644
--- a/drivers/gpu/drm/i810/i810_dma.c
+++ b/drivers/gpu/drm/i810/i810_dma.c
@@ -1250,7 +1250,7 @@ const struct drm_ioctl_desc i810_ioctls[] = {
 	DRM_IOCTL_DEF_DRV(I810_FLIP, i810_flip_bufs, DRM_AUTH|DRM_UNLOCKED),
 };
 
-int i810_max_ioctl = ARRAY_SIZE(i810_ioctls);
+const int i810_max_ioctl = ARRAY_SIZE(i810_ioctls);
 
 /**
  * Determine if the device really is AGP or not.
diff --git a/drivers/gpu/drm/i810/i810_drv.c b/drivers/gpu/drm/i810/i810_drv.c
index 44f4a13..af9f6f5 100644
--- a/drivers/gpu/drm/i810/i810_drv.c
+++ b/drivers/gpu/drm/i810/i810_drv.c
@@ -87,7 +87,11 @@ static int __init i810_init(void)
 		pr_err("drm/i810 does not support SMP\n");
 		return -EINVAL;
 	}
-	driver.num_ioctls = i810_max_ioctl;
+
+	pax_open_kernel();
+	const_cast(driver.num_ioctls) = i810_max_ioctl;
+	pax_close_kernel();
+
 	return drm_pci_init(&driver, &i810_pci_driver);
 }
 
diff --git a/drivers/gpu/drm/i810/i810_drv.h b/drivers/gpu/drm/i810/i810_drv.h
index 93ec5dc..204ec92 100644
--- a/drivers/gpu/drm/i810/i810_drv.h
+++ b/drivers/gpu/drm/i810/i810_drv.h
@@ -110,8 +110,8 @@ typedef struct drm_i810_private {
 	int page_flipping;
 
 	wait_queue_head_t irq_queue;
-	atomic_t irq_received;
-	atomic_t irq_emitted;
+	atomic_unchecked_t irq_received;
+	atomic_unchecked_t irq_emitted;
 
 	int front_offset;
 } drm_i810_private_t;
@@ -128,7 +128,7 @@ extern int i810_driver_device_is_agp(struct drm_device *dev);
 
 extern long i810_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
 extern const struct drm_ioctl_desc i810_ioctls[];
-extern int i810_max_ioctl;
+extern const int i810_max_ioctl;
 
 #define I810_BASE(reg)		((unsigned long) \
 				dev_priv->mmio_map->handle)
diff --git a/drivers/gpu/drm/i915/dvo.h b/drivers/gpu/drm/i915/dvo.h
index 5e6a301..b6e143e 100644
--- a/drivers/gpu/drm/i915/dvo.h
+++ b/drivers/gpu/drm/i915/dvo.h
@@ -74,7 +74,7 @@ struct intel_dvo_dev_ops {
 	 *
 	 * \return MODE_OK if the mode is valid, or another MODE_* otherwise.
 	 */
-	int (*mode_valid)(struct intel_dvo_device *dvo,
+	enum drm_mode_status (*mode_valid)(struct intel_dvo_device *dvo,
 			  struct drm_display_mode *mode);
 
 	/*
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 1c6d227..c97b56e 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -356,7 +356,7 @@ static bool i915_switcheroo_can_switch(struct pci_dev *pdev)
 	 * locking inversion with the driver load path. And the access here is
 	 * completely racy anyway. So don't bother with locking for now.
 	 */
-	return dev->open_count == 0;
+	return local_read(&dev->open_count) == 0;
 }
 
 static const struct vga_switcheroo_client_ops i915_switcheroo_ops = {
@@ -1382,4 +1382,4 @@ const struct drm_ioctl_desc i915_ioctls[] = {
 	DRM_IOCTL_DEF_DRV(I915_GEM_CONTEXT_SETPARAM, i915_gem_context_setparam_ioctl, DRM_RENDER_ALLOW),
 };
 
-int i915_max_ioctl = ARRAY_SIZE(i915_ioctls);
+const int i915_max_ioctl = ARRAY_SIZE(i915_ioctls);
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 6d2fb3f..691eabb 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -43,7 +43,7 @@
 #include <linux/vga_switcheroo.h>
 #include <drm/drm_crtc_helper.h>
 
-static struct drm_driver driver;
+static drm_driver_no_const driver;
 
 #define GEN_DEFAULT_PIPEOFFSETS \
 	.pipe_offsets = { PIPE_A_OFFSET, PIPE_B_OFFSET, \
@@ -1711,7 +1711,7 @@ static const struct file_operations i915_driver_fops = {
 	.llseek = noop_llseek,
 };
 
-static struct drm_driver driver = {
+static drm_driver_no_const driver __read_only = {
 	/* Don't use MTRRs here; the Xserver or userspace app should
 	 * deal with them for Intel hardware.
 	 */
@@ -1761,6 +1761,7 @@ static struct pci_driver i915_pci_driver = {
 
 static int __init i915_init(void)
 {
+	pax_open_kernel();
 	driver.num_ioctls = i915_max_ioctl;
 
 	/*
@@ -1778,6 +1779,7 @@ static int __init i915_init(void)
 #endif
 
 	if (!(driver.driver_features & DRIVER_MODESET)) {
+		pax_close_kernel();
 		/* Silently fail loading to not upset userspace. */
 		DRM_DEBUG_DRIVER("KMS and UMS disabled.\n");
 		return 0;
@@ -1785,6 +1787,7 @@ static int __init i915_init(void)
 
 	if (i915.nuclear_pageflip)
 		driver.driver_features |= DRIVER_ATOMIC;
+	pax_close_kernel();
 
 	return drm_pci_init(&driver, &i915_pci_driver);
 }
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index daba7eb..a5b2287 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2721,7 +2721,7 @@ struct drm_i915_cmd_table {
 #include "i915_trace.h"
 
 extern const struct drm_ioctl_desc i915_ioctls[];
-extern int i915_max_ioctl;
+extern const int i915_max_ioctl;
 
 extern int i915_suspend_switcheroo(struct drm_device *dev, pm_message_t state);
 extern int i915_resume_switcheroo(struct drm_device *dev);
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 1328bc5..d25ea51 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -997,12 +997,12 @@ i915_gem_check_execbuffer(struct drm_i915_gem_execbuffer2 *exec)
 static int
 validate_exec_list(struct drm_device *dev,
 		   struct drm_i915_gem_exec_object2 *exec,
-		   int count)
+		   unsigned int count)
 {
 	unsigned relocs_total = 0;
 	unsigned relocs_max = UINT_MAX / sizeof(struct drm_i915_gem_relocation_entry);
 	unsigned invalid_flags;
-	int i;
+	unsigned int i;
 
 	invalid_flags = __EXEC_OBJECT_UNKNOWN_FLAGS;
 	if (USES_FULL_PPGTT(dev))
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 49e4f26..a1aceb1 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -3036,8 +3036,8 @@ static void chv_setup_private_ppat(struct drm_i915_private *dev_priv)
 
 static int gen8_gmch_probe(struct drm_device *dev,
 			   u64 *gtt_total,
-			   size_t *stolen,
-			   phys_addr_t *mappable_base,
+			   u64 *stolen,
+			   u64 *mappable_base,
 			   u64 *mappable_end)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
@@ -3087,8 +3087,8 @@ static int gen8_gmch_probe(struct drm_device *dev,
 
 static int gen6_gmch_probe(struct drm_device *dev,
 			   u64 *gtt_total,
-			   size_t *stolen,
-			   phys_addr_t *mappable_base,
+			   u64 *stolen,
+			   u64 *mappable_base,
 			   u64 *mappable_end)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
@@ -3138,8 +3138,8 @@ static void gen6_gmch_remove(struct i915_address_space *vm)
 
 static int i915_gmch_probe(struct drm_device *dev,
 			   u64 *gtt_total,
-			   size_t *stolen,
-			   phys_addr_t *mappable_base,
+			   u64 *stolen,
+			   u64 *mappable_base,
 			   u64 *mappable_end)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
@@ -3216,8 +3216,8 @@ int i915_gem_gtt_init(struct drm_device *dev)
 	/* GMADR is the PCI mmio aperture into the global GTT. */
 	DRM_INFO("Memory usable by graphics device = %lluM\n",
 		 gtt->base.total >> 20);
-	DRM_DEBUG_DRIVER("GMADR size = %lldM\n", gtt->mappable_end >> 20);
-	DRM_DEBUG_DRIVER("GTT stolen size = %zdM\n", gtt->stolen_size >> 20);
+	DRM_DEBUG_DRIVER("GMADR size = %lluM\n", gtt->mappable_end >> 20);
+	DRM_DEBUG_DRIVER("GTT stolen size = %lluM\n", gtt->stolen_size >> 20);
 #ifdef CONFIG_INTEL_IOMMU
 	if (intel_iommu_gfx_mapped)
 		DRM_INFO("VT-d active for gfx access\n");
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
index 8774f1b..4227d0b 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -345,13 +345,13 @@ struct i915_address_space {
 struct i915_gtt {
 	struct i915_address_space base;
 
-	size_t stolen_size;		/* Total size of stolen memory */
+	u64 stolen_size;		/* Total size of stolen memory */
 	size_t stolen_usable_size;	/* Total size minus BIOS reserved */
 	size_t stolen_reserved_base;
 	size_t stolen_reserved_size;
 	u64 mappable_end;		/* End offset that we can CPU map */
 	struct io_mapping *mappable;	/* Mapping to our CPU mappable region */
-	phys_addr_t mappable_base;	/* PA of our GMADR */
+	u64 mappable_base;		/* PA of our GMADR */
 
 	/** "Graphics Stolen Memory" holds the global PTEs */
 	void __iomem *gsm;
@@ -362,7 +362,7 @@ struct i915_gtt {
 
 	/* global gtt ops */
 	int (*gtt_probe)(struct drm_device *dev, u64 *gtt_total,
-			  size_t *stolen, phys_addr_t *mappable_base,
+			  u64 *stolen, u64 *mappable_base,
 			  u64 *mappable_end);
 };
 
diff --git a/drivers/gpu/drm/i915/i915_ioc32.c b/drivers/gpu/drm/i915/i915_ioc32.c
index 97f3a56..32c712e 100644
--- a/drivers/gpu/drm/i915/i915_ioc32.c
+++ b/drivers/gpu/drm/i915/i915_ioc32.c
@@ -65,7 +65,7 @@ static int compat_i915_getparam(struct file *file, unsigned int cmd,
 			 (unsigned long)request);
 }
 
-static drm_ioctl_compat_t *i915_compat_ioctls[] = {
+static drm_ioctl_compat_t i915_compat_ioctls[] = {
 	[DRM_I915_GETPARAM] = compat_i915_getparam,
 };
 
@@ -81,17 +81,13 @@ static drm_ioctl_compat_t *i915_compat_ioctls[] = {
 long i915_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
 	unsigned int nr = DRM_IOCTL_NR(cmd);
-	drm_ioctl_compat_t *fn = NULL;
 	int ret;
 
 	if (nr < DRM_COMMAND_BASE || nr >= DRM_COMMAND_END)
 		return drm_compat_ioctl(filp, cmd, arg);
 
-	if (nr < DRM_COMMAND_BASE + ARRAY_SIZE(i915_compat_ioctls))
-		fn = i915_compat_ioctls[nr - DRM_COMMAND_BASE];
-
-	if (fn != NULL)
-		ret = (*fn) (filp, cmd, arg);
+	if (nr < DRM_COMMAND_BASE + ARRAY_SIZE(i915_compat_ioctls) && i915_compat_ioctls[nr - DRM_COMMAND_BASE])
+		ret = (*i915_compat_ioctls[nr - DRM_COMMAND_BASE])(filp, cmd, arg);
 	else
 		ret = drm_ioctl(filp, cmd, arg);
 
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index d1a46ef..4999f42 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -4569,14 +4569,15 @@ void intel_irq_init(struct drm_i915_private *dev_priv)
 
 	pm_qos_add_request(&dev_priv->pm_qos, PM_QOS_CPU_DMA_LATENCY, PM_QOS_DEFAULT_VALUE);
 
+	pax_open_kernel();
 	if (IS_GEN2(dev_priv)) {
 		dev->max_vblank_count = 0;
-		dev->driver->get_vblank_counter = i8xx_get_vblank_counter;
+		const_cast(dev->driver->get_vblank_counter) = i8xx_get_vblank_counter;
 	} else if (IS_G4X(dev_priv) || INTEL_INFO(dev_priv)->gen >= 5) {
 		dev->max_vblank_count = 0xffffffff; /* full 32 bit counter */
-		dev->driver->get_vblank_counter = g4x_get_vblank_counter;
+		const_cast(dev->driver->get_vblank_counter) = g4x_get_vblank_counter;
 	} else {
-		dev->driver->get_vblank_counter = i915_get_vblank_counter;
+		const_cast(dev->driver->get_vblank_counter) = i915_get_vblank_counter;
 		dev->max_vblank_count = 0xffffff; /* only 24 bits of frame count */
 	}
 
@@ -4588,32 +4589,32 @@ void intel_irq_init(struct drm_i915_private *dev_priv)
 	if (!IS_GEN2(dev_priv))
 		dev->vblank_disable_immediate = true;
 
-	dev->driver->get_vblank_timestamp = i915_get_vblank_timestamp;
-	dev->driver->get_scanout_position = i915_get_crtc_scanoutpos;
+	const_cast(dev->driver->get_vblank_timestamp) = i915_get_vblank_timestamp;
+	const_cast(dev->driver->get_scanout_position) = i915_get_crtc_scanoutpos;
 
 	if (IS_CHERRYVIEW(dev_priv)) {
-		dev->driver->irq_handler = cherryview_irq_handler;
-		dev->driver->irq_preinstall = cherryview_irq_preinstall;
-		dev->driver->irq_postinstall = cherryview_irq_postinstall;
-		dev->driver->irq_uninstall = cherryview_irq_uninstall;
-		dev->driver->enable_vblank = valleyview_enable_vblank;
-		dev->driver->disable_vblank = valleyview_disable_vblank;
+		const_cast(dev->driver->irq_handler) = cherryview_irq_handler;
+		const_cast(dev->driver->irq_preinstall) = cherryview_irq_preinstall;
+		const_cast(dev->driver->irq_postinstall) = cherryview_irq_postinstall;
+		const_cast(dev->driver->irq_uninstall) = cherryview_irq_uninstall;
+		const_cast(dev->driver->enable_vblank) = valleyview_enable_vblank;
+		const_cast(dev->driver->disable_vblank) = valleyview_disable_vblank;
 		dev_priv->display.hpd_irq_setup = i915_hpd_irq_setup;
 	} else if (IS_VALLEYVIEW(dev_priv)) {
-		dev->driver->irq_handler = valleyview_irq_handler;
-		dev->driver->irq_preinstall = valleyview_irq_preinstall;
-		dev->driver->irq_postinstall = valleyview_irq_postinstall;
-		dev->driver->irq_uninstall = valleyview_irq_uninstall;
-		dev->driver->enable_vblank = valleyview_enable_vblank;
-		dev->driver->disable_vblank = valleyview_disable_vblank;
+		const_cast(dev->driver->irq_handler) = valleyview_irq_handler;
+		const_cast(dev->driver->irq_preinstall) = valleyview_irq_preinstall;
+		const_cast(dev->driver->irq_postinstall) = valleyview_irq_postinstall;
+		const_cast(dev->driver->irq_uninstall) = valleyview_irq_uninstall;
+		const_cast(dev->driver->enable_vblank) = valleyview_enable_vblank;
+		const_cast(dev->driver->disable_vblank) = valleyview_disable_vblank;
 		dev_priv->display.hpd_irq_setup = i915_hpd_irq_setup;
 	} else if (INTEL_INFO(dev_priv)->gen >= 8) {
-		dev->driver->irq_handler = gen8_irq_handler;
-		dev->driver->irq_preinstall = gen8_irq_reset;
-		dev->driver->irq_postinstall = gen8_irq_postinstall;
-		dev->driver->irq_uninstall = gen8_irq_uninstall;
-		dev->driver->enable_vblank = gen8_enable_vblank;
-		dev->driver->disable_vblank = gen8_disable_vblank;
+		const_cast(dev->driver->irq_handler) = gen8_irq_handler;
+		const_cast(dev->driver->irq_preinstall) = gen8_irq_reset;
+		const_cast(dev->driver->irq_postinstall) = gen8_irq_postinstall;
+		const_cast(dev->driver->irq_uninstall) = gen8_irq_uninstall;
+		const_cast(dev->driver->enable_vblank) = gen8_enable_vblank;
+		const_cast(dev->driver->disable_vblank) = gen8_disable_vblank;
 		if (IS_BROXTON(dev))
 			dev_priv->display.hpd_irq_setup = bxt_hpd_irq_setup;
 		else if (HAS_PCH_SPT(dev))
@@ -4621,35 +4622,36 @@ void intel_irq_init(struct drm_i915_private *dev_priv)
 		else
 			dev_priv->display.hpd_irq_setup = ilk_hpd_irq_setup;
 	} else if (HAS_PCH_SPLIT(dev)) {
-		dev->driver->irq_handler = ironlake_irq_handler;
-		dev->driver->irq_preinstall = ironlake_irq_reset;
-		dev->driver->irq_postinstall = ironlake_irq_postinstall;
-		dev->driver->irq_uninstall = ironlake_irq_uninstall;
-		dev->driver->enable_vblank = ironlake_enable_vblank;
-		dev->driver->disable_vblank = ironlake_disable_vblank;
+		const_cast(dev->driver->irq_handler) = ironlake_irq_handler;
+		const_cast(dev->driver->irq_preinstall) = ironlake_irq_reset;
+		const_cast(dev->driver->irq_postinstall) = ironlake_irq_postinstall;
+		const_cast(dev->driver->irq_uninstall) = ironlake_irq_uninstall;
+		const_cast(dev->driver->enable_vblank) = ironlake_enable_vblank;
+		const_cast(dev->driver->disable_vblank) = ironlake_disable_vblank;
 		dev_priv->display.hpd_irq_setup = ilk_hpd_irq_setup;
 	} else {
 		if (INTEL_INFO(dev_priv)->gen == 2) {
-			dev->driver->irq_preinstall = i8xx_irq_preinstall;
-			dev->driver->irq_postinstall = i8xx_irq_postinstall;
-			dev->driver->irq_handler = i8xx_irq_handler;
-			dev->driver->irq_uninstall = i8xx_irq_uninstall;
+			const_cast(dev->driver->irq_preinstall) = i8xx_irq_preinstall;
+			const_cast(dev->driver->irq_postinstall) = i8xx_irq_postinstall;
+			const_cast(dev->driver->irq_handler) = i8xx_irq_handler;
+			const_cast(dev->driver->irq_uninstall) = i8xx_irq_uninstall;
 		} else if (INTEL_INFO(dev_priv)->gen == 3) {
-			dev->driver->irq_preinstall = i915_irq_preinstall;
-			dev->driver->irq_postinstall = i915_irq_postinstall;
-			dev->driver->irq_uninstall = i915_irq_uninstall;
-			dev->driver->irq_handler = i915_irq_handler;
+			const_cast(dev->driver->irq_preinstall) = i915_irq_preinstall;
+			const_cast(dev->driver->irq_postinstall) = i915_irq_postinstall;
+			const_cast(dev->driver->irq_uninstall) = i915_irq_uninstall;
+			const_cast(dev->driver->irq_handler) = i915_irq_handler;
 		} else {
-			dev->driver->irq_preinstall = i965_irq_preinstall;
-			dev->driver->irq_postinstall = i965_irq_postinstall;
-			dev->driver->irq_uninstall = i965_irq_uninstall;
-			dev->driver->irq_handler = i965_irq_handler;
+			const_cast(dev->driver->irq_preinstall) = i965_irq_preinstall;
+			const_cast(dev->driver->irq_postinstall) = i965_irq_postinstall;
+			const_cast(dev->driver->irq_uninstall) = i965_irq_uninstall;
+			const_cast(dev->driver->irq_handler) = i965_irq_handler;
 		}
 		if (I915_HAS_HOTPLUG(dev_priv))
 			dev_priv->display.hpd_irq_setup = i915_hpd_irq_setup;
-		dev->driver->enable_vblank = i915_enable_vblank;
-		dev->driver->disable_vblank = i915_disable_vblank;
+		const_cast(dev->driver->enable_vblank) = i915_enable_vblank;
+		const_cast(dev->driver->disable_vblank) = i915_disable_vblank;
 	}
+	pax_close_kernel();
 }
 
 /**
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 7741efb..483be63 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -15120,13 +15120,13 @@ struct intel_quirk {
 	int subsystem_vendor;
 	int subsystem_device;
 	void (*hook)(struct drm_device *dev);
-};
+} __do_const;
 
 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
 struct intel_dmi_quirk {
 	void (*hook)(struct drm_device *dev);
-	const struct dmi_system_id (*dmi_id_list)[];
-};
+	const struct dmi_system_id *dmi_id_list;
+} __do_const;
 
 static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
 {
@@ -15134,18 +15134,20 @@ static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
 	return 1;
 }
 
-static const struct intel_dmi_quirk intel_dmi_quirks[] = {
+static const struct dmi_system_id intel_dmi_quirks_table[] = {
 	{
-		.dmi_id_list = &(const struct dmi_system_id[]) {
-			{
-				.callback = intel_dmi_reverse_brightness,
-				.ident = "NCR Corporation",
-				.matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
-					    DMI_MATCH(DMI_PRODUCT_NAME, ""),
-				},
-			},
-			{ }  /* terminating entry */
+		.callback = intel_dmi_reverse_brightness,
+		.ident = "NCR Corporation",
+		.matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
+			    DMI_MATCH(DMI_PRODUCT_NAME, ""),
 		},
+	},
+	{ }  /* terminating entry */
+};
+
+static const struct intel_dmi_quirk intel_dmi_quirks[] = {
+	{
+		.dmi_id_list = intel_dmi_quirks_table,
 		.hook = quirk_invert_brightness,
 	},
 };
@@ -15228,7 +15230,7 @@ static void intel_init_quirks(struct drm_device *dev)
 			q->hook(dev);
 	}
 	for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) {
-		if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0)
+		if (dmi_check_system(intel_dmi_quirks[i].dmi_id_list) != 0)
 			intel_dmi_quirks[i].hook(dev);
 	}
 }
diff --git a/drivers/gpu/drm/imx/imx-drm-core.c b/drivers/gpu/drm/imx/imx-drm-core.c
index 05229b9..de0cefc 100644
--- a/drivers/gpu/drm/imx/imx-drm-core.c
+++ b/drivers/gpu/drm/imx/imx-drm-core.c
@@ -335,7 +335,7 @@ int imx_drm_add_crtc(struct drm_device *drm, struct drm_crtc *crtc,
 	if (imxdrm->pipes >= MAX_CRTC)
 		return -EINVAL;
 
-	if (imxdrm->drm->open_count)
+	if (local_read(&imxdrm->drm->open_count))
 		return -EBUSY;
 
 	imx_drm_crtc = kzalloc(sizeof(*imx_drm_crtc), GFP_KERNEL);
diff --git a/drivers/gpu/drm/mga/mga_drv.c b/drivers/gpu/drm/mga/mga_drv.c
index 5e2f131..c134c7c 100644
--- a/drivers/gpu/drm/mga/mga_drv.c
+++ b/drivers/gpu/drm/mga/mga_drv.c
@@ -92,7 +92,10 @@ static struct pci_driver mga_pci_driver = {
 
 static int __init mga_init(void)
 {
-	driver.num_ioctls = mga_max_ioctl;
+	pax_open_kernel();
+	const_cast(driver.num_ioctls) = mga_max_ioctl;
+	pax_close_kernel();
+
 	return drm_pci_init(&driver, &mga_pci_driver);
 }
 
diff --git a/drivers/gpu/drm/mga/mga_drv.h b/drivers/gpu/drm/mga/mga_drv.h
index bb31233..75b39f0 100644
--- a/drivers/gpu/drm/mga/mga_drv.h
+++ b/drivers/gpu/drm/mga/mga_drv.h
@@ -122,9 +122,9 @@ typedef struct drm_mga_private {
 	u32 clear_cmd;
 	u32 maccess;
 
-	atomic_t vbl_received;          /**< Number of vblanks received. */
+	atomic_unchecked_t vbl_received;          /**< Number of vblanks received. */
 	wait_queue_head_t fence_queue;
-	atomic_t last_fence_retired;
+	atomic_unchecked_t last_fence_retired;
 	u32 next_fence_to_post;
 
 	unsigned int fb_cpp;
@@ -152,7 +152,7 @@ typedef struct drm_mga_private {
 } drm_mga_private_t;
 
 extern const struct drm_ioctl_desc mga_ioctls[];
-extern int mga_max_ioctl;
+extern const int mga_max_ioctl;
 
 				/* mga_dma.c */
 extern int mga_dma_bootstrap(struct drm_device *dev, void *data,
diff --git a/drivers/gpu/drm/mga/mga_ioc32.c b/drivers/gpu/drm/mga/mga_ioc32.c
index 729bfd5..14bae78 100644
--- a/drivers/gpu/drm/mga/mga_ioc32.c
+++ b/drivers/gpu/drm/mga/mga_ioc32.c
@@ -190,7 +190,7 @@ static int compat_mga_dma_bootstrap(struct file *file, unsigned int cmd,
 	return 0;
 }
 
-drm_ioctl_compat_t *mga_compat_ioctls[] = {
+drm_ioctl_compat_t mga_compat_ioctls[] = {
 	[DRM_MGA_INIT] = compat_mga_init,
 	[DRM_MGA_GETPARAM] = compat_mga_getparam,
 	[DRM_MGA_DMA_BOOTSTRAP] = compat_mga_dma_bootstrap,
@@ -208,17 +208,13 @@ drm_ioctl_compat_t *mga_compat_ioctls[] = {
 long mga_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
 	unsigned int nr = DRM_IOCTL_NR(cmd);
-	drm_ioctl_compat_t *fn = NULL;
 	int ret;
 
 	if (nr < DRM_COMMAND_BASE)
 		return drm_compat_ioctl(filp, cmd, arg);
 
-	if (nr < DRM_COMMAND_BASE + ARRAY_SIZE(mga_compat_ioctls))
-		fn = mga_compat_ioctls[nr - DRM_COMMAND_BASE];
-
-	if (fn != NULL)
-		ret = (*fn) (filp, cmd, arg);
+	if (nr < DRM_COMMAND_BASE + ARRAY_SIZE(mga_compat_ioctls) && mga_compat_ioctls[nr - DRM_COMMAND_BASE])
+		ret = (*mga_compat_ioctls[nr - DRM_COMMAND_BASE]) (filp, cmd, arg);
 	else
 		ret = drm_ioctl(filp, cmd, arg);
 
diff --git a/drivers/gpu/drm/mga/mga_irq.c b/drivers/gpu/drm/mga/mga_irq.c
index 693ba70..465bcfc 100644
--- a/drivers/gpu/drm/mga/mga_irq.c
+++ b/drivers/gpu/drm/mga/mga_irq.c
@@ -43,7 +43,7 @@ u32 mga_get_vblank_counter(struct drm_device *dev, unsigned int pipe)
 	if (pipe != 0)
 		return 0;
 
-	return atomic_read(&dev_priv->vbl_received);
+	return atomic_read_unchecked(&dev_priv->vbl_received);
 }
 
 
@@ -59,7 +59,7 @@ irqreturn_t mga_driver_irq_handler(int irq, void *arg)
 	/* VBLANK interrupt */
 	if (status & MGA_VLINEPEN) {
 		MGA_WRITE(MGA_ICLEAR, MGA_VLINEICLR);
-		atomic_inc(&dev_priv->vbl_received);
+		atomic_inc_unchecked(&dev_priv->vbl_received);
 		drm_handle_vblank(dev, 0);
 		handled = 1;
 	}
@@ -78,7 +78,7 @@ irqreturn_t mga_driver_irq_handler(int irq, void *arg)
 		if ((prim_start & ~0x03) != (prim_end & ~0x03))
 			MGA_WRITE(MGA_PRIMEND, prim_end);
 
-		atomic_inc(&dev_priv->last_fence_retired);
+		atomic_inc_unchecked(&dev_priv->last_fence_retired);
 		wake_up(&dev_priv->fence_queue);
 		handled = 1;
 	}
@@ -129,7 +129,7 @@ int mga_driver_fence_wait(struct drm_device *dev, unsigned int *sequence)
 	 * using fences.
 	 */
 	DRM_WAIT_ON(ret, dev_priv->fence_queue, 3 * HZ,
-		    (((cur_fence = atomic_read(&dev_priv->last_fence_retired))
+		    (((cur_fence = atomic_read_unchecked(&dev_priv->last_fence_retired))
 		      - *sequence) <= (1 << 23)));
 
 	*sequence = cur_fence;
diff --git a/drivers/gpu/drm/mga/mga_state.c b/drivers/gpu/drm/mga/mga_state.c
index 792f924..aeb1334 100644
--- a/drivers/gpu/drm/mga/mga_state.c
+++ b/drivers/gpu/drm/mga/mga_state.c
@@ -1099,4 +1099,4 @@ const struct drm_ioctl_desc mga_ioctls[] = {
 	DRM_IOCTL_DEF_DRV(MGA_DMA_BOOTSTRAP, mga_dma_bootstrap, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 };
 
-int mga_max_ioctl = ARRAY_SIZE(mga_ioctls);
+const int mga_max_ioctl = ARRAY_SIZE(mga_ioctls);
diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c
index 14e64e0..620b163 100644
--- a/drivers/gpu/drm/mgag200/mgag200_mode.c
+++ b/drivers/gpu/drm/mgag200/mgag200_mode.c
@@ -1565,7 +1565,7 @@ static uint32_t mga_vga_calculate_mode_bandwidth(struct drm_display_mode *mode,
 
 #define MODE_BANDWIDTH	MODE_BAD
 
-static int mga_vga_mode_valid(struct drm_connector *connector,
+static enum drm_mode_status mga_vga_mode_valid(struct drm_connector *connector,
 				 struct drm_display_mode *mode)
 {
 	struct drm_device *dev = connector->dev;
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
index 484b4d1..54685f2 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
@@ -747,9 +747,12 @@ struct msm_kms *mdp5_kms_init(struct drm_device *dev)
 	dev->mode_config.max_width = config->hw->lm.max_width;
 	dev->mode_config.max_height = config->hw->lm.max_height;
 
-	dev->driver->get_vblank_timestamp = mdp5_get_vblank_timestamp;
-	dev->driver->get_scanout_position = mdp5_get_scanoutpos;
-	dev->driver->get_vblank_counter = mdp5_get_vblank_counter;
+	pax_open_kernel();
+	const_cast(dev->driver->get_vblank_timestamp) = mdp5_get_vblank_timestamp;
+	const_cast(dev->driver->get_scanout_position) = mdp5_get_scanoutpos;
+	const_cast(dev->driver->get_vblank_counter) = mdp5_get_vblank_counter;
+	pax_close_kernel();
+
 	dev->max_vblank_count = 0xffffffff;
 	dev->vblank_disable_immediate = true;
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_acpi.c b/drivers/gpu/drm/nouveau/nouveau_acpi.c
index cdf5227..6b332f1 100644
--- a/drivers/gpu/drm/nouveau/nouveau_acpi.c
+++ b/drivers/gpu/drm/nouveau/nouveau_acpi.c
@@ -193,7 +193,7 @@ static int nouveau_dsm_power_state(enum vga_switcheroo_client_id id,
 	return nouveau_dsm_set_discrete_state(nouveau_dsm_priv.dhandle, state);
 }
 
-static int nouveau_dsm_get_client_id(struct pci_dev *pdev)
+static enum vga_switcheroo_client_id nouveau_dsm_get_client_id(struct pci_dev *pdev)
 {
 	/* easy option one - intel vendor ID means Integrated */
 	if (pdev->vendor == PCI_VENDOR_ID_INTEL)
diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c
index 4dca65a..3486961 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bios.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bios.c
@@ -964,7 +964,7 @@ static int parse_bit_tmds_tbl_entry(struct drm_device *dev, struct nvbios *bios,
 struct bit_table {
 	const char id;
 	int (* const parse_fn)(struct drm_device *, struct nvbios *, struct bit_entry *);
-};
+} __no_const;
 
 #define BIT_TABLE(id, funcid) ((struct bit_table){ id, parse_bit_##funcid##_tbl_entry })
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c
index e81aefe..dd2a354 100644
--- a/drivers/gpu/drm/nouveau/nouveau_connector.c
+++ b/drivers/gpu/drm/nouveau/nouveau_connector.c
@@ -862,7 +862,7 @@ get_tmds_link_bandwidth(struct drm_connector *connector, bool hdmi)
 		return 112000;
 }
 
-static int
+static enum drm_mode_status
 nouveau_connector_mode_valid(struct drm_connector *connector,
 			     struct drm_display_mode *mode)
 {
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
index d06877d..3404100 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -82,9 +82,8 @@ MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1
 int nouveau_runtime_pm = -1;
 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
 
-static struct drm_driver driver_stub;
 static struct drm_driver driver_pci;
-static struct drm_driver driver_platform;
+static drm_driver_no_const driver_platform __read_only;
 
 static u64
 nouveau_pci_name(struct pci_dev *pdev)
@@ -931,7 +930,7 @@ nouveau_driver_fops = {
 };
 
 static struct drm_driver
-driver_stub = {
+driver_pci = {
 	.driver_features =
 		DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER |
 		DRIVER_KMS_LEGACY_CONTEXT,
@@ -943,6 +942,8 @@ driver_stub = {
 	.postclose = nouveau_drm_postclose,
 	.lastclose = nouveau_vga_lastclose,
 
+	.set_busid = drm_pci_set_busid,
+
 #if defined(CONFIG_DEBUG_FS)
 	.debugfs_init = nouveau_drm_debugfs_init,
 	.debugfs_cleanup = nouveau_drm_debugfs_cleanup,
@@ -1075,10 +1076,10 @@ err_free:
 static int __init
 nouveau_drm_init(void)
 {
-	driver_pci = driver_stub;
-	driver_pci.set_busid = drm_pci_set_busid;
-	driver_platform = driver_stub;
+	pax_open_kernel();
+	driver_platform = driver_pci;
 	driver_platform.set_busid = drm_platform_set_busid;
+	pax_close_kernel();
 
 	nouveau_display_options();
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.h b/drivers/gpu/drm/nouveau/nouveau_drm.h
index 5c363ed..98fa924 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.h
@@ -124,7 +124,6 @@ struct nouveau_drm {
 		struct drm_global_reference mem_global_ref;
 		struct ttm_bo_global_ref bo_global_ref;
 		struct ttm_bo_device bdev;
-		atomic_t validate_sequence;
 		int (*move)(struct nouveau_channel *,
 			    struct ttm_buffer_object *,
 			    struct ttm_mem_reg *, struct ttm_mem_reg *);
diff --git a/drivers/gpu/drm/nouveau/nouveau_ioc32.c b/drivers/gpu/drm/nouveau/nouveau_ioc32.c
index 462679a..88e32a7 100644
--- a/drivers/gpu/drm/nouveau/nouveau_ioc32.c
+++ b/drivers/gpu/drm/nouveau/nouveau_ioc32.c
@@ -50,7 +50,7 @@ long nouveau_compat_ioctl(struct file *filp, unsigned int cmd,
 			 unsigned long arg)
 {
 	unsigned int nr = DRM_IOCTL_NR(cmd);
-	drm_ioctl_compat_t *fn = NULL;
+	drm_ioctl_compat_t fn = NULL;
 	int ret;
 
 	if (nr < DRM_COMMAND_BASE)
diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c
index d2e7d20..7bbe51f 100644
--- a/drivers/gpu/drm/nouveau/nouveau_ttm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c
@@ -107,10 +107,10 @@ nouveau_vram_manager_new(struct ttm_mem_type_manager *man,
 }
 
 const struct ttm_mem_type_manager_func nouveau_vram_manager = {
-	nouveau_vram_manager_init,
-	nouveau_vram_manager_fini,
-	nouveau_vram_manager_new,
-	nouveau_vram_manager_del,
+	.init = nouveau_vram_manager_init,
+	.takedown = nouveau_vram_manager_fini,
+	.get_node = nouveau_vram_manager_new,
+	.put_node = nouveau_vram_manager_del,
 };
 
 static int
@@ -183,11 +183,11 @@ nouveau_gart_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
 }
 
 const struct ttm_mem_type_manager_func nouveau_gart_manager = {
-	nouveau_gart_manager_init,
-	nouveau_gart_manager_fini,
-	nouveau_gart_manager_new,
-	nouveau_gart_manager_del,
-	nouveau_gart_manager_debug
+	.init = nouveau_gart_manager_init,
+	.takedown = nouveau_gart_manager_fini,
+	.get_node = nouveau_gart_manager_new,
+	.put_node = nouveau_gart_manager_del,
+	.debug = nouveau_gart_manager_debug
 };
 
 /*XXX*/
@@ -256,11 +256,11 @@ nv04_gart_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
 }
 
 const struct ttm_mem_type_manager_func nv04_gart_manager = {
-	nv04_gart_manager_init,
-	nv04_gart_manager_fini,
-	nv04_gart_manager_new,
-	nv04_gart_manager_del,
-	nv04_gart_manager_debug
+	.init = nv04_gart_manager_init,
+	.takedown = nv04_gart_manager_fini,
+	.get_node = nv04_gart_manager_new,
+	.put_node = nv04_gart_manager_del,
+	.debug = nv04_gart_manager_debug
 };
 
 int
diff --git a/drivers/gpu/drm/nouveau/nouveau_usif.c b/drivers/gpu/drm/nouveau/nouveau_usif.c
index e9f52ef..b25cd62 100644
--- a/drivers/gpu/drm/nouveau/nouveau_usif.c
+++ b/drivers/gpu/drm/nouveau/nouveau_usif.c
@@ -186,6 +186,11 @@ usif_notify_del(struct drm_file *f, void *data, u32 size, void *argv, u32 argc)
 	return ret;
 }
 
+static void usif_notify_release(struct drm_pending_event *event)
+{
+	kfree(event);
+}
+
 static int
 usif_notify_get(struct drm_file *f, void *data, u32 size, void *argv, u32 argc)
 {
@@ -212,7 +217,7 @@ usif_notify_get(struct drm_file *f, void *data, u32 size, void *argv, u32 argc)
 	ntfy->p->base.event = &ntfy->p->e.base;
 	ntfy->p->base.file_priv = f;
 	ntfy->p->base.pid = current->pid;
-	ntfy->p->base.destroy =(void(*)(struct drm_pending_event *))kfree;
+	ntfy->p->base.destroy = usif_notify_release;
 	ntfy->p->e.base.type = DRM_NOUVEAU_EVENT_NVIF;
 	ntfy->p->e.base.length = sizeof(ntfy->p->e.base) + ntfy->reply;
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_vga.c b/drivers/gpu/drm/nouveau/nouveau_vga.c
index af89c36..83ef136 100644
--- a/drivers/gpu/drm/nouveau/nouveau_vga.c
+++ b/drivers/gpu/drm/nouveau/nouveau_vga.c
@@ -73,7 +73,7 @@ nouveau_switcheroo_can_switch(struct pci_dev *pdev)
 	 * locking inversion with the driver load path. And the access here is
 	 * completely racy anyway. So don't bother with locking for now.
 	 */
-	return dev->open_count == 0;
+	return local_read(&dev->open_count) == 0;
 }
 
 static const struct vga_switcheroo_client_ops
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadow.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadow.c
index b2557e8..2d4f9f4 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadow.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadow.c
@@ -151,11 +151,16 @@ shadow_fw_init(struct nvkm_bios *bios, const char *name)
 	return (void *)fw;
 }
 
+static void shadow_fw_fini(void *fw)
+{
+	release_firmware(fw);
+}
+
 static const struct nvbios_source
 shadow_fw = {
 	.name = "firmware",
 	.init = shadow_fw_init,
-	.fini = (void(*)(void *))release_firmware,
+	.fini = shadow_fw_fini,
 	.read = shadow_fw_read,
 	.rw = false,
 };
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowpci.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowpci.c
index 9b91da0..b3fa90d 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowpci.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowpci.c
@@ -111,11 +111,16 @@ platform_init(struct nvkm_bios *bios, const char *name)
 	return ERR_PTR(ret);
 }
 
+static void platform_fini(void *data)
+{
+	kfree(data);
+}
+
 const struct nvbios_source
 nvbios_platform = {
 	.name = "PLATFORM",
 	.init = platform_init,
-	.fini = (void(*)(void *))kfree,
+	.fini = platform_fini,
 	.read = pcirom_read,
 	.rw = true,
 };
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/priv.h
index f2b09de..ccb2b83 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/priv.h
@@ -218,8 +218,8 @@ struct gm200_secboot_func {
 
 int gm200_secboot_init(struct nvkm_secboot *);
 void *gm200_secboot_dtor(struct nvkm_secboot *);
-int gm200_secboot_reset(struct nvkm_secboot *, u32);
-int gm200_secboot_start(struct nvkm_secboot *, u32);
+int gm200_secboot_reset(struct nvkm_secboot *, enum nvkm_secboot_falcon);
+int gm200_secboot_start(struct nvkm_secboot *, enum nvkm_secboot_falcon);
 
 int gm20x_secboot_prepare_blobs(struct gm200_secboot *);
 
diff --git a/drivers/gpu/drm/omapdrm/dss/display.c b/drivers/gpu/drm/omapdrm/dss/display.c
index 9f3dd09..8ccc40d 100644
--- a/drivers/gpu/drm/omapdrm/dss/display.c
+++ b/drivers/gpu/drm/omapdrm/dss/display.c
@@ -112,12 +112,14 @@ int omapdss_register_display(struct omap_dss_device *dssdev)
 	if (dssdev->name == NULL)
 		dssdev->name = dssdev->alias;
 
+	pax_open_kernel();
 	if (drv && drv->get_resolution == NULL)
-		drv->get_resolution = omapdss_default_get_resolution;
+		const_cast(drv->get_resolution) = omapdss_default_get_resolution;
 	if (drv && drv->get_recommended_bpp == NULL)
-		drv->get_recommended_bpp = omapdss_default_get_recommended_bpp;
+		const_cast(drv->get_recommended_bpp) = omapdss_default_get_recommended_bpp;
 	if (drv && drv->get_timings == NULL)
-		drv->get_timings = omapdss_default_get_timings;
+		const_cast(drv->get_timings) = omapdss_default_get_timings;
+	pax_close_kernel();
 
 	mutex_lock(&panel_list_mutex);
 	list_add_tail(&dssdev->panel_list, &panel_list);
diff --git a/drivers/gpu/drm/qxl/qxl_cmd.c b/drivers/gpu/drm/qxl/qxl_cmd.c
index fdc1833..f307630 100644
--- a/drivers/gpu/drm/qxl/qxl_cmd.c
+++ b/drivers/gpu/drm/qxl/qxl_cmd.c
@@ -285,27 +285,27 @@ static int wait_for_io_cmd_user(struct qxl_device *qdev, uint8_t val, long port,
 	int ret;
 
 	mutex_lock(&qdev->async_io_mutex);
-	irq_num = atomic_read(&qdev->irq_received_io_cmd);
+	irq_num = atomic_read_unchecked(&qdev->irq_received_io_cmd);
 	if (qdev->last_sent_io_cmd > irq_num) {
 		if (intr)
 			ret = wait_event_interruptible_timeout(qdev->io_cmd_event,
-							       atomic_read(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
+							       atomic_read_unchecked(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
 		else
 			ret = wait_event_timeout(qdev->io_cmd_event,
-						 atomic_read(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
+						 atomic_read_unchecked(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
 		/* 0 is timeout, just bail the "hw" has gone away */
 		if (ret <= 0)
 			goto out;
-		irq_num = atomic_read(&qdev->irq_received_io_cmd);
+		irq_num = atomic_read_unchecked(&qdev->irq_received_io_cmd);
 	}
 	outb(val, addr);
 	qdev->last_sent_io_cmd = irq_num + 1;
 	if (intr)
 		ret = wait_event_interruptible_timeout(qdev->io_cmd_event,
-						       atomic_read(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
+						       atomic_read_unchecked(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
 	else
 		ret = wait_event_timeout(qdev->io_cmd_event,
-					 atomic_read(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
+					 atomic_read_unchecked(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
 out:
 	if (ret > 0)
 		ret = 0;
diff --git a/drivers/gpu/drm/qxl/qxl_debugfs.c b/drivers/gpu/drm/qxl/qxl_debugfs.c
index 6911b8c..89d6867 100644
--- a/drivers/gpu/drm/qxl/qxl_debugfs.c
+++ b/drivers/gpu/drm/qxl/qxl_debugfs.c
@@ -42,10 +42,10 @@ qxl_debugfs_irq_received(struct seq_file *m, void *data)
 	struct drm_info_node *node = (struct drm_info_node *) m->private;
 	struct qxl_device *qdev = node->minor->dev->dev_private;
 
-	seq_printf(m, "%d\n", atomic_read(&qdev->irq_received));
-	seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_display));
-	seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_cursor));
-	seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_io_cmd));
+	seq_printf(m, "%d\n", atomic_read_unchecked(&qdev->irq_received));
+	seq_printf(m, "%d\n", atomic_read_unchecked(&qdev->irq_received_display));
+	seq_printf(m, "%d\n", atomic_read_unchecked(&qdev->irq_received_cursor));
+	seq_printf(m, "%d\n", atomic_read_unchecked(&qdev->irq_received_io_cmd));
 	seq_printf(m, "%d\n", qdev->irq_received_error);
 	return 0;
 }
diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
index 030409a..de26914 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -828,7 +828,7 @@ static int qxl_conn_get_modes(struct drm_connector *connector)
 	return ret;
 }
 
-static int qxl_conn_mode_valid(struct drm_connector *connector,
+static enum drm_mode_status qxl_conn_mode_valid(struct drm_connector *connector,
 			       struct drm_display_mode *mode)
 {
 	struct drm_device *ddev = connector->dev;
diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c
index 7307b07..3346540 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.c
+++ b/drivers/gpu/drm/qxl/qxl_drv.c
@@ -37,7 +37,7 @@
 #include "qxl_drv.h"
 #include "qxl_object.h"
 
-extern int qxl_max_ioctls;
+extern const int qxl_max_ioctls;
 static const struct pci_device_id pciidlist[] = {
 	{ 0x1b36, 0x100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8,
 	  0xffff00, 0 },
@@ -279,7 +279,11 @@ static int __init qxl_init(void)
 
 	if (qxl_modeset == 0)
 		return -EINVAL;
-	qxl_driver.num_ioctls = qxl_max_ioctls;
+
+	pax_open_kernel();
+	const_cast(qxl_driver.num_ioctls) = qxl_max_ioctls;
+	pax_close_kernel();
+
 	return drm_pci_init(&qxl_driver, &qxl_pci_driver);
 }
 
diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
index 3f3897e..0bc8075 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.h
+++ b/drivers/gpu/drm/qxl/qxl_drv.h
@@ -292,10 +292,10 @@ struct qxl_device {
 	unsigned int last_sent_io_cmd;
 
 	/* interrupt handling */
-	atomic_t irq_received;
-	atomic_t irq_received_display;
-	atomic_t irq_received_cursor;
-	atomic_t irq_received_io_cmd;
+	atomic_unchecked_t irq_received;
+	atomic_unchecked_t irq_received_display;
+	atomic_unchecked_t irq_received_cursor;
+	atomic_unchecked_t irq_received_io_cmd;
 	unsigned irq_received_error;
 	wait_queue_head_t display_event;
 	wait_queue_head_t cursor_event;
diff --git a/drivers/gpu/drm/qxl/qxl_ioctl.c b/drivers/gpu/drm/qxl/qxl_ioctl.c
index 7c2e782..d3ca7da 100644
--- a/drivers/gpu/drm/qxl/qxl_ioctl.c
+++ b/drivers/gpu/drm/qxl/qxl_ioctl.c
@@ -184,7 +184,7 @@ static int qxl_process_single_command(struct qxl_device *qdev,
 
 	/* TODO copy slow path code from i915 */
 	fb_cmd = qxl_bo_kmap_atomic_page(qdev, cmd_bo, (release->release_offset & PAGE_SIZE));
-	unwritten = __copy_from_user_inatomic_nocache(fb_cmd + sizeof(union qxl_release_info) + (release->release_offset & ~PAGE_SIZE), (void *)(unsigned long)cmd->command, cmd->command_size);
+	unwritten = __copy_from_user_inatomic_nocache(fb_cmd + sizeof(union qxl_release_info) + (release->release_offset & ~PAGE_SIZE), (void __force_user *)(unsigned long)cmd->command, cmd->command_size);
 
 	{
 		struct qxl_drawable *draw = fb_cmd;
@@ -204,7 +204,7 @@ static int qxl_process_single_command(struct qxl_device *qdev,
 		struct drm_qxl_reloc reloc;
 
 		if (copy_from_user(&reloc,
-				       &((struct drm_qxl_reloc *)(uintptr_t)cmd->relocs)[i],
+				       &((struct drm_qxl_reloc __force_user *)(uintptr_t)cmd->relocs)[i],
 				       sizeof(reloc))) {
 			ret = -EFAULT;
 			goto out_free_bos;
@@ -283,10 +283,10 @@ static int qxl_execbuffer_ioctl(struct drm_device *dev, void *data,
 
 	for (cmd_num = 0; cmd_num < execbuffer->commands_num; ++cmd_num) {
 
-		struct drm_qxl_command *commands =
-			(struct drm_qxl_command *)(uintptr_t)execbuffer->commands;
+		struct drm_qxl_command __user *commands =
+			(struct drm_qxl_command __user *)(uintptr_t)execbuffer->commands;
 
-		if (copy_from_user(&user_cmd, &commands[cmd_num],
+		if (copy_from_user(&user_cmd, (struct drm_qxl_command __force_user *)&commands[cmd_num],
 				       sizeof(user_cmd)))
 			return -EFAULT;
 
@@ -440,4 +440,4 @@ const struct drm_ioctl_desc qxl_ioctls[] = {
 			  DRM_AUTH),
 };
 
-int qxl_max_ioctls = ARRAY_SIZE(qxl_ioctls);
+const int qxl_max_ioctls = ARRAY_SIZE(qxl_ioctls);
diff --git a/drivers/gpu/drm/qxl/qxl_irq.c b/drivers/gpu/drm/qxl/qxl_irq.c
index 0bf1e20..42a7310 100644
--- a/drivers/gpu/drm/qxl/qxl_irq.c
+++ b/drivers/gpu/drm/qxl/qxl_irq.c
@@ -36,19 +36,19 @@ irqreturn_t qxl_irq_handler(int irq, void *arg)
 	if (!pending)
 		return IRQ_NONE;
 
-	atomic_inc(&qdev->irq_received);
+	atomic_inc_unchecked(&qdev->irq_received);
 
 	if (pending & QXL_INTERRUPT_DISPLAY) {
-		atomic_inc(&qdev->irq_received_display);
+		atomic_inc_unchecked(&qdev->irq_received_display);
 		wake_up_all(&qdev->display_event);
 		qxl_queue_garbage_collect(qdev, false);
 	}
 	if (pending & QXL_INTERRUPT_CURSOR) {
-		atomic_inc(&qdev->irq_received_cursor);
+		atomic_inc_unchecked(&qdev->irq_received_cursor);
 		wake_up_all(&qdev->cursor_event);
 	}
 	if (pending & QXL_INTERRUPT_IO_CMD) {
-		atomic_inc(&qdev->irq_received_io_cmd);
+		atomic_inc_unchecked(&qdev->irq_received_io_cmd);
 		wake_up_all(&qdev->io_cmd_event);
 	}
 	if (pending & QXL_INTERRUPT_ERROR) {
@@ -85,10 +85,10 @@ int qxl_irq_init(struct qxl_device *qdev)
 	init_waitqueue_head(&qdev->io_cmd_event);
 	INIT_WORK(&qdev->client_monitors_config_work,
 		  qxl_client_monitors_config_work_func);
-	atomic_set(&qdev->irq_received, 0);
-	atomic_set(&qdev->irq_received_display, 0);
-	atomic_set(&qdev->irq_received_cursor, 0);
-	atomic_set(&qdev->irq_received_io_cmd, 0);
+	atomic_set_unchecked(&qdev->irq_received, 0);
+	atomic_set_unchecked(&qdev->irq_received_display, 0);
+	atomic_set_unchecked(&qdev->irq_received_cursor, 0);
+	atomic_set_unchecked(&qdev->irq_received_io_cmd, 0);
 	qdev->irq_received_error = 0;
 	ret = drm_irq_install(qdev->ddev, qdev->ddev->pdev->irq);
 	qdev->ram_header->int_mask = QXL_INTERRUPT_MASK;
diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c
index 9534127..1d17b3f 100644
--- a/drivers/gpu/drm/qxl/qxl_ttm.c
+++ b/drivers/gpu/drm/qxl/qxl_ttm.c
@@ -103,7 +103,7 @@ static void qxl_ttm_global_fini(struct qxl_device *qdev)
 	}
 }
 
-static struct vm_operations_struct qxl_ttm_vm_ops;
+static vm_operations_struct_no_const qxl_ttm_vm_ops __read_only;
 static const struct vm_operations_struct *ttm_vm_ops;
 
 static int qxl_ttm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
@@ -145,8 +145,10 @@ int qxl_mmap(struct file *filp, struct vm_area_struct *vma)
 		return r;
 	if (unlikely(ttm_vm_ops == NULL)) {
 		ttm_vm_ops = vma->vm_ops;
+		pax_open_kernel();
 		qxl_ttm_vm_ops = *ttm_vm_ops;
 		qxl_ttm_vm_ops.fault = &qxl_ttm_fault;
+		pax_close_kernel();
 	}
 	vma->vm_ops = &qxl_ttm_vm_ops;
 	return 0;
@@ -464,25 +466,23 @@ static int qxl_mm_dump_table(struct seq_file *m, void *data)
 static int qxl_ttm_debugfs_init(struct qxl_device *qdev)
 {
 #if defined(CONFIG_DEBUG_FS)
-	static struct drm_info_list qxl_mem_types_list[QXL_DEBUGFS_MEM_TYPES];
-	static char qxl_mem_types_names[QXL_DEBUGFS_MEM_TYPES][32];
-	unsigned i;
+	static struct drm_info_list qxl_mem_types_list[QXL_DEBUGFS_MEM_TYPES] = {
+		{
+			.name = "qxl_mem_mm",
+			.show = &qxl_mm_dump_table,
+		},
+		{
+			.name = "qxl_surf_mm",
+			.show = &qxl_mm_dump_table,
+		}
+	};
 
-	for (i = 0; i < QXL_DEBUGFS_MEM_TYPES; i++) {
-		if (i == 0)
-			sprintf(qxl_mem_types_names[i], "qxl_mem_mm");
-		else
-			sprintf(qxl_mem_types_names[i], "qxl_surf_mm");
-		qxl_mem_types_list[i].name = qxl_mem_types_names[i];
-		qxl_mem_types_list[i].show = &qxl_mm_dump_table;
-		qxl_mem_types_list[i].driver_features = 0;
-		if (i == 0)
-			qxl_mem_types_list[i].data = qdev->mman.bdev.man[TTM_PL_VRAM].priv;
-		else
-			qxl_mem_types_list[i].data = qdev->mman.bdev.man[TTM_PL_PRIV0].priv;
+	pax_open_kernel();
+	const_cast(qxl_mem_types_list[0].data) = qdev->mman.bdev.man[TTM_PL_VRAM].priv;
+	const_cast(qxl_mem_types_list[1].data) = qdev->mman.bdev.man[TTM_PL_PRIV0].priv;
+	pax_close_kernel();
 
-	}
-	return qxl_debugfs_add_files(qdev, qxl_mem_types_list, i);
+	return qxl_debugfs_add_files(qdev, qxl_mem_types_list, QXL_DEBUGFS_MEM_TYPES);
 #else
 	return 0;
 #endif
diff --git a/drivers/gpu/drm/r128/r128_cce.c b/drivers/gpu/drm/r128/r128_cce.c
index 14fd83b5f..b2acbd19 100644
--- a/drivers/gpu/drm/r128/r128_cce.c
+++ b/drivers/gpu/drm/r128/r128_cce.c
@@ -377,7 +377,7 @@ static int r128_do_init_cce(struct drm_device *dev, drm_r128_init_t *init)
 
 	/* GH: Simple idle check.
 	 */
-	atomic_set(&dev_priv->idle_count, 0);
+	atomic_set_unchecked(&dev_priv->idle_count, 0);
 
 	/* We don't support anything other than bus-mastering ring mode,
 	 * but the ring can be in either AGP or PCI space for the ring
diff --git a/drivers/gpu/drm/r128/r128_drv.c b/drivers/gpu/drm/r128/r128_drv.c
index c57b4de..1a875fb 100644
--- a/drivers/gpu/drm/r128/r128_drv.c
+++ b/drivers/gpu/drm/r128/r128_drv.c
@@ -94,7 +94,9 @@ static struct pci_driver r128_pci_driver = {
 
 static int __init r128_init(void)
 {
-	driver.num_ioctls = r128_max_ioctl;
+	pax_open_kernel();
+	const_cast(driver.num_ioctls) = r128_max_ioctl;
+	pax_close_kernel();
 
 	return drm_pci_init(&driver, &r128_pci_driver);
 }
diff --git a/drivers/gpu/drm/r128/r128_drv.h b/drivers/gpu/drm/r128/r128_drv.h
index 09143b8..86c8394 100644
--- a/drivers/gpu/drm/r128/r128_drv.h
+++ b/drivers/gpu/drm/r128/r128_drv.h
@@ -93,14 +93,14 @@ typedef struct drm_r128_private {
 	int is_pci;
 	unsigned long cce_buffers_offset;
 
-	atomic_t idle_count;
+	atomic_unchecked_t idle_count;
 
 	int page_flipping;
 	int current_page;
 	u32 crtc_offset;
 	u32 crtc_offset_cntl;
 
-	atomic_t vbl_received;
+	atomic_unchecked_t vbl_received;
 
 	u32 color_fmt;
 	unsigned int front_offset;
@@ -135,7 +135,7 @@ typedef struct drm_r128_buf_priv {
 } drm_r128_buf_priv_t;
 
 extern const struct drm_ioctl_desc r128_ioctls[];
-extern int r128_max_ioctl;
+extern const int r128_max_ioctl;
 
 				/* r128_cce.c */
 extern int r128_cce_init(struct drm_device *dev, void *data, struct drm_file *file_priv);
diff --git a/drivers/gpu/drm/r128/r128_ioc32.c b/drivers/gpu/drm/r128/r128_ioc32.c
index 663f38c..ec159a1 100644
--- a/drivers/gpu/drm/r128/r128_ioc32.c
+++ b/drivers/gpu/drm/r128/r128_ioc32.c
@@ -178,7 +178,7 @@ static int compat_r128_getparam(struct file *file, unsigned int cmd,
 	return drm_ioctl(file, DRM_IOCTL_R128_GETPARAM, (unsigned long)getparam);
 }
 
-drm_ioctl_compat_t *r128_compat_ioctls[] = {
+drm_ioctl_compat_t r128_compat_ioctls[] = {
 	[DRM_R128_INIT] = compat_r128_init,
 	[DRM_R128_DEPTH] = compat_r128_depth,
 	[DRM_R128_STIPPLE] = compat_r128_stipple,
@@ -197,17 +197,13 @@ drm_ioctl_compat_t *r128_compat_ioctls[] = {
 long r128_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
 	unsigned int nr = DRM_IOCTL_NR(cmd);
-	drm_ioctl_compat_t *fn = NULL;
 	int ret;
 
 	if (nr < DRM_COMMAND_BASE)
 		return drm_compat_ioctl(filp, cmd, arg);
 
-	if (nr < DRM_COMMAND_BASE + ARRAY_SIZE(r128_compat_ioctls))
-		fn = r128_compat_ioctls[nr - DRM_COMMAND_BASE];
-
-	if (fn != NULL)
-		ret = (*fn) (filp, cmd, arg);
+	if (nr < DRM_COMMAND_BASE + ARRAY_SIZE(r128_compat_ioctls) && r128_compat_ioctls[nr - DRM_COMMAND_BASE])
+		ret = (*r128_compat_ioctls[nr - DRM_COMMAND_BASE]) (filp, cmd, arg);
 	else
 		ret = drm_ioctl(filp, cmd, arg);
 
diff --git a/drivers/gpu/drm/r128/r128_irq.c b/drivers/gpu/drm/r128/r128_irq.c
index 9730f49..920e9bf 100644
--- a/drivers/gpu/drm/r128/r128_irq.c
+++ b/drivers/gpu/drm/r128/r128_irq.c
@@ -41,7 +41,7 @@ u32 r128_get_vblank_counter(struct drm_device *dev, unsigned int pipe)
 	if (pipe != 0)
 		return 0;
 
-	return atomic_read(&dev_priv->vbl_received);
+	return atomic_read_unchecked(&dev_priv->vbl_received);
 }
 
 irqreturn_t r128_driver_irq_handler(int irq, void *arg)
@@ -55,7 +55,7 @@ irqreturn_t r128_driver_irq_handler(int irq, void *arg)
 	/* VBLANK interrupt */
 	if (status & R128_CRTC_VBLANK_INT) {
 		R128_WRITE(R128_GEN_INT_STATUS, R128_CRTC_VBLANK_INT_AK);
-		atomic_inc(&dev_priv->vbl_received);
+		atomic_inc_unchecked(&dev_priv->vbl_received);
 		drm_handle_vblank(dev, 0);
 		return IRQ_HANDLED;
 	}
diff --git a/drivers/gpu/drm/r128/r128_state.c b/drivers/gpu/drm/r128/r128_state.c
index 8fd2d9f..4e99166 100644
--- a/drivers/gpu/drm/r128/r128_state.c
+++ b/drivers/gpu/drm/r128/r128_state.c
@@ -320,10 +320,10 @@ static void r128_clear_box(drm_r128_private_t *dev_priv,
 
 static void r128_cce_performance_boxes(drm_r128_private_t *dev_priv)
 {
-	if (atomic_read(&dev_priv->idle_count) == 0)
+	if (atomic_read_unchecked(&dev_priv->idle_count) == 0)
 		r128_clear_box(dev_priv, 64, 4, 8, 8, 0, 255, 0);
 	else
-		atomic_set(&dev_priv->idle_count, 0);
+		atomic_set_unchecked(&dev_priv->idle_count, 0);
 }
 
 #endif
@@ -1641,4 +1641,4 @@ const struct drm_ioctl_desc r128_ioctls[] = {
 	DRM_IOCTL_DEF_DRV(R128_GETPARAM, r128_getparam, DRM_AUTH),
 };
 
-int r128_max_ioctl = ARRAY_SIZE(r128_ioctls);
+const int r128_max_ioctl = ARRAY_SIZE(r128_ioctls);
diff --git a/drivers/gpu/drm/radeon/mkregtable.c b/drivers/gpu/drm/radeon/mkregtable.c
index b928c17..e5d9400 100644
--- a/drivers/gpu/drm/radeon/mkregtable.c
+++ b/drivers/gpu/drm/radeon/mkregtable.c
@@ -624,14 +624,14 @@ static int parser_auth(struct table *t, const char *filename)
 	regex_t mask_rex;
 	regmatch_t match[4];
 	char buf[1024];
-	size_t end;
+	long end;
 	int len;
 	int done = 0;
 	int r;
 	unsigned o;
 	struct offset *offset;
 	char last_reg_s[10];
-	int last_reg;
+	unsigned long last_reg;
 
 	if (regcomp
 	    (&mask_rex, "(0x[0-9a-fA-F]*) *([_a-zA-Z0-9]*)", REG_EXTENDED)) {
diff --git a/drivers/gpu/drm/radeon/radeon_atpx_handler.c b/drivers/gpu/drm/radeon/radeon_atpx_handler.c
index 95f4fea..acecfdf 100644
--- a/drivers/gpu/drm/radeon/radeon_atpx_handler.c
+++ b/drivers/gpu/drm/radeon/radeon_atpx_handler.c
@@ -494,7 +494,7 @@ static int radeon_atpx_init(void)
  * look up whether we are the integrated or discrete GPU (all asics).
  * Returns the client id.
  */
-static int radeon_atpx_get_client_id(struct pci_dev *pdev)
+static enum vga_switcheroo_client_id radeon_atpx_get_client_id(struct pci_dev *pdev)
 {
 	if (radeon_atpx_priv.dhandle == ACPI_HANDLE(&pdev->dev))
 		return VGA_SWITCHEROO_IGD;
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 81a63d7..5c7f8e7 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -857,7 +857,7 @@ static int radeon_lvds_get_modes(struct drm_connector *connector)
 	return ret;
 }
 
-static int radeon_lvds_mode_valid(struct drm_connector *connector,
+static enum drm_mode_status radeon_lvds_mode_valid(struct drm_connector *connector,
 				  struct drm_display_mode *mode)
 {
 	struct drm_encoder *encoder = radeon_best_single_encoder(connector);
@@ -1000,7 +1000,7 @@ static int radeon_vga_get_modes(struct drm_connector *connector)
 	return ret;
 }
 
-static int radeon_vga_mode_valid(struct drm_connector *connector,
+static enum drm_mode_status radeon_vga_mode_valid(struct drm_connector *connector,
 				  struct drm_display_mode *mode)
 {
 	struct drm_device *dev = connector->dev;
@@ -1139,7 +1139,7 @@ static int radeon_tv_get_modes(struct drm_connector *connector)
 	return 1;
 }
 
-static int radeon_tv_mode_valid(struct drm_connector *connector,
+static enum drm_mode_status radeon_tv_mode_valid(struct drm_connector *connector,
 				struct drm_display_mode *mode)
 {
 	if ((mode->hdisplay > 1024) || (mode->vdisplay > 768))
@@ -1470,7 +1470,7 @@ static void radeon_dvi_force(struct drm_connector *connector)
 		radeon_connector->use_digital = true;
 }
 
-static int radeon_dvi_mode_valid(struct drm_connector *connector,
+static enum drm_mode_status radeon_dvi_mode_valid(struct drm_connector *connector,
 				  struct drm_display_mode *mode)
 {
 	struct drm_device *dev = connector->dev;
@@ -1767,7 +1767,7 @@ out:
 	return ret;
 }
 
-static int radeon_dp_mode_valid(struct drm_connector *connector,
+static enum drm_mode_status radeon_dp_mode_valid(struct drm_connector *connector,
 				  struct drm_display_mode *mode)
 {
 	struct drm_device *dev = connector->dev;
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index d0826fb..b47e793 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -1253,7 +1253,7 @@ static bool radeon_switcheroo_can_switch(struct pci_dev *pdev)
 	 * locking inversion with the driver load path. And the access here is
 	 * completely racy anyway. So don't bother with locking for now.
 	 */
-	return dev->open_count == 0;
+	return local_read(&dev->open_count) == 0;
 }
 
 static const struct vga_switcheroo_client_ops radeon_switcheroo_ops = {
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index ccd4ad4..a1ffcff 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -132,7 +132,7 @@ extern int radeon_get_crtc_scanoutpos(struct drm_device *dev, unsigned int crtc,
 				      const struct drm_display_mode *mode);
 extern bool radeon_is_px(struct drm_device *dev);
 extern const struct drm_ioctl_desc radeon_ioctls_kms[];
-extern int radeon_max_kms_ioctl;
+extern const int radeon_max_kms_ioctl;
 int radeon_mmap(struct file *filp, struct vm_area_struct *vma);
 int radeon_mode_dumb_mmap(struct drm_file *filp,
 			  struct drm_device *dev,
@@ -503,7 +503,7 @@ static struct drm_driver kms_driver = {
 	.driver_features =
 	    DRIVER_USE_AGP |
 	    DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_GEM |
-	    DRIVER_PRIME | DRIVER_RENDER,
+	    DRIVER_PRIME | DRIVER_RENDER | DRIVER_MODESET,
 	.load = radeon_driver_load_kms,
 	.open = radeon_driver_open_kms,
 	.preclose = radeon_driver_preclose_kms,
@@ -580,8 +580,11 @@ static int __init radeon_init(void)
 		DRM_INFO("radeon kernel modesetting enabled.\n");
 		driver = &kms_driver;
 		pdriver = &radeon_kms_pci_driver;
-		driver->driver_features |= DRIVER_MODESET;
-		driver->num_ioctls = radeon_max_kms_ioctl;
+
+		pax_open_kernel();
+		const_cast(driver->num_ioctls) = radeon_max_kms_ioctl;
+		pax_close_kernel();
+
 		radeon_register_atpx_handler();
 
 	} else {
diff --git a/drivers/gpu/drm/radeon/radeon_ioc32.c b/drivers/gpu/drm/radeon/radeon_ioc32.c
index 0b98ea1..a3c770f 100644
--- a/drivers/gpu/drm/radeon/radeon_ioc32.c
+++ b/drivers/gpu/drm/radeon/radeon_ioc32.c
@@ -358,7 +358,7 @@ static int compat_radeon_cp_setparam(struct file *file, unsigned int cmd,
 	request = compat_alloc_user_space(sizeof(*request));
 	if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
 	    || __put_user(req32.param, &request->param)
-	    || __put_user((void __user *)(unsigned long)req32.value,
+	    || __put_user((unsigned long)req32.value,
 			  &request->value))
 		return -EFAULT;
 
@@ -368,7 +368,7 @@ static int compat_radeon_cp_setparam(struct file *file, unsigned int cmd,
 #define compat_radeon_cp_setparam NULL
 #endif /* X86_64 || IA64 */
 
-static drm_ioctl_compat_t *radeon_compat_ioctls[] = {
+static drm_ioctl_compat_t radeon_compat_ioctls[] = {
 	[DRM_RADEON_CP_INIT] = compat_radeon_cp_init,
 	[DRM_RADEON_CLEAR] = compat_radeon_cp_clear,
 	[DRM_RADEON_STIPPLE] = compat_radeon_cp_stipple,
@@ -393,17 +393,13 @@ static drm_ioctl_compat_t *radeon_compat_ioctls[] = {
 long radeon_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
 	unsigned int nr = DRM_IOCTL_NR(cmd);
-	drm_ioctl_compat_t *fn = NULL;
 	int ret;
 
 	if (nr < DRM_COMMAND_BASE)
 		return drm_compat_ioctl(filp, cmd, arg);
 
-	if (nr < DRM_COMMAND_BASE + ARRAY_SIZE(radeon_compat_ioctls))
-		fn = radeon_compat_ioctls[nr - DRM_COMMAND_BASE];
-
-	if (fn != NULL)
-		ret = (*fn) (filp, cmd, arg);
+	if (nr < DRM_COMMAND_BASE + ARRAY_SIZE(radeon_compat_ioctls) && radeon_compat_ioctls[nr - DRM_COMMAND_BASE])
+		ret = (*radeon_compat_ioctls[nr - DRM_COMMAND_BASE]) (filp, cmd, arg);
 	else
 		ret = drm_ioctl(filp, cmd, arg);
 
diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 414953c..1b26674 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -822,7 +822,7 @@ u32 radeon_get_vblank_counter_kms(struct drm_device *dev, unsigned int pipe)
  * Enable the interrupt on the requested crtc (all asics).
  * Returns 0 on success, -EINVAL on failure.
  */
-int radeon_enable_vblank_kms(struct drm_device *dev, int crtc)
+int radeon_enable_vblank_kms(struct drm_device *dev, unsigned int crtc)
 {
 	struct radeon_device *rdev = dev->dev_private;
 	unsigned long irqflags;
@@ -848,7 +848,7 @@ int radeon_enable_vblank_kms(struct drm_device *dev, int crtc)
  *
  * Disable the interrupt on the requested crtc (all asics).
  */
-void radeon_disable_vblank_kms(struct drm_device *dev, int crtc)
+void radeon_disable_vblank_kms(struct drm_device *dev, unsigned int crtc)
 {
 	struct radeon_device *rdev = dev->dev_private;
 	unsigned long irqflags;
@@ -877,7 +877,7 @@ void radeon_disable_vblank_kms(struct drm_device *dev, int crtc)
  * scanout position.  (all asics).
  * Returns postive status flags on success, negative error on failure.
  */
-int radeon_get_vblank_timestamp_kms(struct drm_device *dev, int crtc,
+int radeon_get_vblank_timestamp_kms(struct drm_device *dev, unsigned int crtc,
 				    int *max_error,
 				    struct timeval *vblank_time,
 				    unsigned flags)
@@ -946,4 +946,4 @@ const struct drm_ioctl_desc radeon_ioctls_kms[] = {
 	DRM_IOCTL_DEF_DRV(RADEON_GEM_OP, radeon_gem_op_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
 	DRM_IOCTL_DEF_DRV(RADEON_GEM_USERPTR, radeon_gem_userptr_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
 };
-int radeon_max_kms_ioctl = ARRAY_SIZE(radeon_ioctls_kms);
+const int radeon_max_kms_ioctl = ARRAY_SIZE(radeon_ioctls_kms);
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index 90f7394..ccdec03 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -968,7 +968,7 @@ void radeon_ttm_set_active_vram_size(struct radeon_device *rdev, u64 size)
 	man->size = size >> PAGE_SHIFT;
 }
 
-static struct vm_operations_struct radeon_ttm_vm_ops;
+static vm_operations_struct_no_const radeon_ttm_vm_ops __read_only;
 static const struct vm_operations_struct *ttm_vm_ops = NULL;
 
 static int radeon_ttm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
@@ -1009,8 +1009,10 @@ int radeon_mmap(struct file *filp, struct vm_area_struct *vma)
 	}
 	if (unlikely(ttm_vm_ops == NULL)) {
 		ttm_vm_ops = vma->vm_ops;
+		pax_open_kernel();
 		radeon_ttm_vm_ops = *ttm_vm_ops;
 		radeon_ttm_vm_ops.fault = &radeon_ttm_fault;
+		pax_close_kernel();
 	}
 	vma->vm_ops = &radeon_ttm_vm_ops;
 	return 0;
diff --git a/drivers/gpu/drm/savage/savage_bci.c b/drivers/gpu/drm/savage/savage_bci.c
index d47dff9..0752202 100644
--- a/drivers/gpu/drm/savage/savage_bci.c
+++ b/drivers/gpu/drm/savage/savage_bci.c
@@ -1080,4 +1080,4 @@ const struct drm_ioctl_desc savage_ioctls[] = {
 	DRM_IOCTL_DEF_DRV(SAVAGE_BCI_EVENT_WAIT, savage_bci_event_wait, DRM_AUTH),
 };
 
-int savage_max_ioctl = ARRAY_SIZE(savage_ioctls);
+const int savage_max_ioctl = ARRAY_SIZE(savage_ioctls);
diff --git a/drivers/gpu/drm/savage/savage_drv.c b/drivers/gpu/drm/savage/savage_drv.c
index 21aed1f..85d23a0 100644
--- a/drivers/gpu/drm/savage/savage_drv.c
+++ b/drivers/gpu/drm/savage/savage_drv.c
@@ -76,7 +76,10 @@ static struct pci_driver savage_pci_driver = {
 
 static int __init savage_init(void)
 {
-	driver.num_ioctls = savage_max_ioctl;
+	pax_open_kernel();
+	const_cast(driver.num_ioctls) = savage_max_ioctl;
+	pax_close_kernel();
+
 	return drm_pci_init(&driver, &savage_pci_driver);
 }
 
diff --git a/drivers/gpu/drm/savage/savage_drv.h b/drivers/gpu/drm/savage/savage_drv.h
index 37b6995..9b31aaf 100644
--- a/drivers/gpu/drm/savage/savage_drv.h
+++ b/drivers/gpu/drm/savage/savage_drv.h
@@ -107,7 +107,7 @@ enum savage_family {
 };
 
 extern const struct drm_ioctl_desc savage_ioctls[];
-extern int savage_max_ioctl;
+extern const int savage_max_ioctl;
 
 #define S3_SAVAGE3D_SERIES(chip)  ((chip>=S3_SAVAGE3D) && (chip<=S3_SAVAGE_MX))
 
diff --git a/drivers/gpu/drm/sis/sis_drv.c b/drivers/gpu/drm/sis/sis_drv.c
index 79bce76..6c02219 100644
--- a/drivers/gpu/drm/sis/sis_drv.c
+++ b/drivers/gpu/drm/sis/sis_drv.c
@@ -128,7 +128,10 @@ static struct pci_driver sis_pci_driver = {
 
 static int __init sis_init(void)
 {
-	driver.num_ioctls = sis_max_ioctl;
+	pax_open_kernel();
+	const_cast(driver.num_ioctls) = sis_max_ioctl;
+	pax_close_kernel();
+
 	return drm_pci_init(&driver, &sis_pci_driver);
 }
 
diff --git a/drivers/gpu/drm/sis/sis_drv.h b/drivers/gpu/drm/sis/sis_drv.h
index 328f8a7..0cfcf55 100644
--- a/drivers/gpu/drm/sis/sis_drv.h
+++ b/drivers/gpu/drm/sis/sis_drv.h
@@ -77,6 +77,6 @@ extern void sis_reclaim_buffers_locked(struct drm_device *dev,
 extern void sis_lastclose(struct drm_device *dev);
 
 extern const struct drm_ioctl_desc sis_ioctls[];
-extern int sis_max_ioctl;
+extern const int sis_max_ioctl;
 
 #endif
diff --git a/drivers/gpu/drm/sis/sis_mm.c b/drivers/gpu/drm/sis/sis_mm.c
index 93ad8a5..48f0a57 100644
--- a/drivers/gpu/drm/sis/sis_mm.c
+++ b/drivers/gpu/drm/sis/sis_mm.c
@@ -359,4 +359,4 @@ const struct drm_ioctl_desc sis_ioctls[] = {
 	DRM_IOCTL_DEF_DRV(SIS_FB_INIT, sis_fb_init, DRM_AUTH | DRM_MASTER | DRM_ROOT_ONLY),
 };
 
-int sis_max_ioctl = ARRAY_SIZE(sis_ioctls);
+const int sis_max_ioctl = ARRAY_SIZE(sis_ioctls);
diff --git a/drivers/gpu/drm/sti/sti_cursor.c b/drivers/gpu/drm/sti/sti_cursor.c
index 3abb400..47ff1c9 100644
--- a/drivers/gpu/drm/sti/sti_cursor.c
+++ b/drivers/gpu/drm/sti/sti_cursor.c
@@ -131,7 +131,7 @@ static int cursor_dbg_show(struct seq_file *s, void *data)
 	return 0;
 }
 
-static struct drm_info_list cursor_debugfs_files[] = {
+static drm_info_list_no_const cursor_debugfs_files[] __read_only = {
 	{ "cursor", cursor_dbg_show, 0, NULL },
 };
 
@@ -140,8 +140,10 @@ static int cursor_debugfs_init(struct sti_cursor *cursor,
 {
 	unsigned int i;
 
+	pax_open_kernel();
 	for (i = 0; i < ARRAY_SIZE(cursor_debugfs_files); i++)
 		cursor_debugfs_files[i].data = cursor;
+	pax_close_kernel();
 
 	return drm_debugfs_create_files(cursor_debugfs_files,
 					ARRAY_SIZE(cursor_debugfs_files),
diff --git a/drivers/gpu/drm/sti/sti_dvo.c b/drivers/gpu/drm/sti/sti_dvo.c
index 25f7663..db8f927 100644
--- a/drivers/gpu/drm/sti/sti_dvo.c
+++ b/drivers/gpu/drm/sti/sti_dvo.c
@@ -197,7 +197,7 @@ static int dvo_dbg_show(struct seq_file *s, void *data)
 	return 0;
 }
 
-static struct drm_info_list dvo_debugfs_files[] = {
+static drm_info_list_no_const dvo_debugfs_files[] __read_only = {
 	{ "dvo", dvo_dbg_show, 0, NULL },
 };
 
@@ -212,8 +212,10 @@ static int dvo_debugfs_init(struct sti_dvo *dvo, struct drm_minor *minor)
 {
 	unsigned int i;
 
+	pax_open_kernel();
 	for (i = 0; i < ARRAY_SIZE(dvo_debugfs_files); i++)
 		dvo_debugfs_files[i].data = dvo;
+	pax_close_kernel();
 
 	return drm_debugfs_create_files(dvo_debugfs_files,
 					ARRAY_SIZE(dvo_debugfs_files),
diff --git a/drivers/gpu/drm/sti/sti_gdp.c b/drivers/gpu/drm/sti/sti_gdp.c
index ff3d3e7..da4db0f 100644
--- a/drivers/gpu/drm/sti/sti_gdp.c
+++ b/drivers/gpu/drm/sti/sti_gdp.c
@@ -297,22 +297,22 @@ static int gdp_node_dbg_show(struct seq_file *s, void *arg)
 	return 0;
 }
 
-static struct drm_info_list gdp0_debugfs_files[] = {
+static drm_info_list_no_const gdp0_debugfs_files[] __read_only = {
 	{ "gdp0", gdp_dbg_show, 0, NULL },
 	{ "gdp0_node", gdp_node_dbg_show, 0, NULL },
 };
 
-static struct drm_info_list gdp1_debugfs_files[] = {
+static drm_info_list_no_const gdp1_debugfs_files[] __read_only = {
 	{ "gdp1", gdp_dbg_show, 0, NULL },
 	{ "gdp1_node", gdp_node_dbg_show, 0, NULL },
 };
 
-static struct drm_info_list gdp2_debugfs_files[] = {
+static drm_info_list_no_const gdp2_debugfs_files[] __read_only = {
 	{ "gdp2", gdp_dbg_show, 0, NULL },
 	{ "gdp2_node", gdp_node_dbg_show, 0, NULL },
 };
 
-static struct drm_info_list gdp3_debugfs_files[] = {
+static drm_info_list_no_const gdp3_debugfs_files[] __read_only = {
 	{ "gdp3", gdp_dbg_show, 0, NULL },
 	{ "gdp3_node", gdp_node_dbg_show, 0, NULL },
 };
@@ -320,7 +320,7 @@ static struct drm_info_list gdp3_debugfs_files[] = {
 static int gdp_debugfs_init(struct sti_gdp *gdp, struct drm_minor *minor)
 {
 	unsigned int i;
-	struct drm_info_list *gdp_debugfs_files;
+	drm_info_list_no_const *gdp_debugfs_files;
 	int nb_files;
 
 	switch (gdp->plane.desc) {
@@ -344,8 +344,10 @@ static int gdp_debugfs_init(struct sti_gdp *gdp, struct drm_minor *minor)
 		return -EINVAL;
 	}
 
+	pax_open_kernel();
 	for (i = 0; i < nb_files; i++)
 		gdp_debugfs_files[i].data = gdp;
+	pax_close_kernel();
 
 	return drm_debugfs_create_files(gdp_debugfs_files,
 					nb_files,
diff --git a/drivers/gpu/drm/sti/sti_hda.c b/drivers/gpu/drm/sti/sti_hda.c
index ec0d017..0fe03fd 100644
--- a/drivers/gpu/drm/sti/sti_hda.c
+++ b/drivers/gpu/drm/sti/sti_hda.c
@@ -400,7 +400,7 @@ static int hda_dbg_show(struct seq_file *s, void *data)
 	return 0;
 }
 
-static struct drm_info_list hda_debugfs_files[] = {
+static drm_info_list_no_const hda_debugfs_files[] __read_only = {
 	{ "hda", hda_dbg_show, 0, NULL },
 };
 
@@ -415,8 +415,10 @@ static int hda_debugfs_init(struct sti_hda *hda, struct drm_minor *minor)
 {
 	unsigned int i;
 
+	pax_open_kernel();
 	for (i = 0; i < ARRAY_SIZE(hda_debugfs_files); i++)
-		hda_debugfs_files[i].data = hda;
+		const_cast(hda_debugfs_files[i].data) = hda;
+	pax_close_kernel();
 
 	return drm_debugfs_create_files(hda_debugfs_files,
 					ARRAY_SIZE(hda_debugfs_files),
diff --git a/drivers/gpu/drm/sti/sti_hdmi.c b/drivers/gpu/drm/sti/sti_hdmi.c
index 6ef0715..dbc27b0 100644
--- a/drivers/gpu/drm/sti/sti_hdmi.c
+++ b/drivers/gpu/drm/sti/sti_hdmi.c
@@ -694,7 +694,7 @@ static int hdmi_dbg_show(struct seq_file *s, void *data)
 	return 0;
 }
 
-static struct drm_info_list hdmi_debugfs_files[] = {
+static drm_info_list_no_const hdmi_debugfs_files[] __read_only = {
 	{ "hdmi", hdmi_dbg_show, 0, NULL },
 };
 
@@ -709,8 +709,10 @@ static int hdmi_debugfs_init(struct sti_hdmi *hdmi, struct drm_minor *minor)
 {
 	unsigned int i;
 
+	pax_open_kernel();
 	for (i = 0; i < ARRAY_SIZE(hdmi_debugfs_files); i++)
 		hdmi_debugfs_files[i].data = hdmi;
+	pax_close_kernel();
 
 	return drm_debugfs_create_files(hdmi_debugfs_files,
 					ARRAY_SIZE(hdmi_debugfs_files),
diff --git a/drivers/gpu/drm/sti/sti_hqvdp.c b/drivers/gpu/drm/sti/sti_hqvdp.c
index e05b0dc..a40a642 100644
--- a/drivers/gpu/drm/sti/sti_hqvdp.c
+++ b/drivers/gpu/drm/sti/sti_hqvdp.c
@@ -633,7 +633,7 @@ static int hqvdp_dbg_show(struct seq_file *s, void *data)
 	return 0;
 }
 
-static struct drm_info_list hqvdp_debugfs_files[] = {
+static drm_info_list_no_const hqvdp_debugfs_files[] __read_only = {
 	{ "hqvdp", hqvdp_dbg_show, 0, NULL },
 };
 
@@ -641,8 +641,10 @@ static int hqvdp_debugfs_init(struct sti_hqvdp *hqvdp, struct drm_minor *minor)
 {
 	unsigned int i;
 
+	pax_open_kernel();
 	for (i = 0; i < ARRAY_SIZE(hqvdp_debugfs_files); i++)
-		hqvdp_debugfs_files[i].data = hqvdp;
+		const_cast(hqvdp_debugfs_files[i].data) = hqvdp;
+	pax_close_kernel();
 
 	return drm_debugfs_create_files(hqvdp_debugfs_files,
 					ARRAY_SIZE(hqvdp_debugfs_files),
diff --git a/drivers/gpu/drm/sti/sti_mixer.c b/drivers/gpu/drm/sti/sti_mixer.c
index e7425c3..d53380c 100644
--- a/drivers/gpu/drm/sti/sti_mixer.c
+++ b/drivers/gpu/drm/sti/sti_mixer.c
@@ -179,18 +179,18 @@ static int mixer_dbg_show(struct seq_file *s, void *arg)
 	return 0;
 }
 
-static struct drm_info_list mixer0_debugfs_files[] = {
+static drm_info_list_no_const mixer0_debugfs_files[] __read_only = {
 	{ "mixer_main", mixer_dbg_show, 0, NULL },
 };
 
-static struct drm_info_list mixer1_debugfs_files[] = {
+static drm_info_list_no_const mixer1_debugfs_files[] __read_only = {
 	{ "mixer_aux", mixer_dbg_show, 0, NULL },
 };
 
 static int mixer_debugfs_init(struct sti_mixer *mixer, struct drm_minor *minor)
 {
 	unsigned int i;
-	struct drm_info_list *mixer_debugfs_files;
+	drm_info_list_no_const *mixer_debugfs_files;
 	int nb_files;
 
 	switch (mixer->id) {
@@ -206,8 +206,10 @@ static int mixer_debugfs_init(struct sti_mixer *mixer, struct drm_minor *minor)
 		return -EINVAL;
 	}
 
+	pax_open_kernel();
 	for (i = 0; i < nb_files; i++)
 		mixer_debugfs_files[i].data = mixer;
+	pax_close_kernel();
 
 	return drm_debugfs_create_files(mixer_debugfs_files,
 					nb_files,
diff --git a/drivers/gpu/drm/sti/sti_tvout.c b/drivers/gpu/drm/sti/sti_tvout.c
index 2c99016..62597fd 100644
--- a/drivers/gpu/drm/sti/sti_tvout.c
+++ b/drivers/gpu/drm/sti/sti_tvout.c
@@ -590,7 +590,7 @@ static int tvout_dbg_show(struct seq_file *s, void *data)
 	return 0;
 }
 
-static struct drm_info_list tvout_debugfs_files[] = {
+static drm_info_list_no_const tvout_debugfs_files[] __read_only = {
 	{ "tvout", tvout_dbg_show, 0, NULL },
 };
 
@@ -605,8 +605,10 @@ static int tvout_debugfs_init(struct sti_tvout *tvout, struct drm_minor *minor)
 {
 	unsigned int i;
 
+	pax_open_kernel();
 	for (i = 0; i < ARRAY_SIZE(tvout_debugfs_files); i++)
-		tvout_debugfs_files[i].data = tvout;
+		const_cast(tvout_debugfs_files[i].data) = tvout;
+	pax_close_kernel();
 
 	return drm_debugfs_create_files(tvout_debugfs_files,
 					ARRAY_SIZE(tvout_debugfs_files),
diff --git a/drivers/gpu/drm/sti/sti_vid.c b/drivers/gpu/drm/sti/sti_vid.c
index 5a2c5dc..c4f2be6 100644
--- a/drivers/gpu/drm/sti/sti_vid.c
+++ b/drivers/gpu/drm/sti/sti_vid.c
@@ -125,7 +125,7 @@ static int vid_dbg_show(struct seq_file *s, void *arg)
 	return 0;
 }
 
-static struct drm_info_list vid_debugfs_files[] = {
+static drm_info_list_no_const vid_debugfs_files[] __read_only = {
 	{ "vid", vid_dbg_show, 0, NULL },
 };
 
@@ -133,8 +133,10 @@ static int vid_debugfs_init(struct sti_vid *vid, struct drm_minor *minor)
 {
 	unsigned int i;
 
+	pax_open_kernel();
 	for (i = 0; i < ARRAY_SIZE(vid_debugfs_files); i++)
 		vid_debugfs_files[i].data = vid;
+	pax_close_kernel();
 
 	return drm_debugfs_create_files(vid_debugfs_files,
 					ARRAY_SIZE(vid_debugfs_files),
diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index fb2b4b0..46f430e 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -1640,7 +1640,7 @@ static int tegra_dc_debugfs_init(struct tegra_dc *dc, struct drm_minor *minor)
 	}
 
 	for (i = 0; i < ARRAY_SIZE(debugfs_files); i++)
-		dc->debugfs_files[i].data = dc;
+		const_cast(dc->debugfs_files[i].data) = dc;
 
 	err = drm_debugfs_create_files(dc->debugfs_files,
 				       ARRAY_SIZE(debugfs_files),
diff --git a/drivers/gpu/drm/tegra/dsi.c b/drivers/gpu/drm/tegra/dsi.c
index 44e1027..3548928 100644
--- a/drivers/gpu/drm/tegra/dsi.c
+++ b/drivers/gpu/drm/tegra/dsi.c
@@ -62,7 +62,7 @@ struct tegra_dsi {
 	struct clk *clk_lp;
 	struct clk *clk;
 
-	struct drm_info_list *debugfs_files;
+	drm_info_list_no_const *debugfs_files;
 	struct drm_minor *minor;
 	struct dentry *debugfs;
 
diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c
index b7ef492..8968507 100644
--- a/drivers/gpu/drm/tegra/hdmi.c
+++ b/drivers/gpu/drm/tegra/hdmi.c
@@ -64,7 +64,7 @@ struct tegra_hdmi {
 	bool stereo;
 	bool dvi;
 
-	struct drm_info_list *debugfs_files;
+	drm_info_list_no_const *debugfs_files;
 	struct drm_minor *minor;
 	struct dentry *debugfs;
 };
diff --git a/drivers/gpu/drm/tegra/sor.c b/drivers/gpu/drm/tegra/sor.c
index 757c6e8..36532d6 100644
--- a/drivers/gpu/drm/tegra/sor.c
+++ b/drivers/gpu/drm/tegra/sor.c
@@ -1003,8 +1003,11 @@ static int tegra_sor_debugfs_init(struct tegra_sor *sor,
 		goto remove;
 	}
 
-	for (i = 0; i < ARRAY_SIZE(debugfs_files); i++)
-		sor->debugfs_files[i].data = sor;
+	for (i = 0; i < ARRAY_SIZE(debugfs_files); i++) {
+		pax_open_kernel();
+		const_cast(sor->debugfs_files[i].data) = sor;
+		pax_close_kernel();
+	}
 
 	err = drm_debugfs_create_files(sor->debugfs_files,
 				       ARRAY_SIZE(debugfs_files),
diff --git a/drivers/gpu/drm/tilcdc/Makefile b/drivers/gpu/drm/tilcdc/Makefile
index deeca48..54e1b6c 100644
--- a/drivers/gpu/drm/tilcdc/Makefile
+++ b/drivers/gpu/drm/tilcdc/Makefile
@@ -1,7 +1,7 @@
 ccflags-y := -Iinclude/drm
-ifeq (, $(findstring -W,$(EXTRA_CFLAGS)))
-	ccflags-y += -Werror
-endif
+#ifeq (, $(findstring -W,$(EXTRA_CFLAGS)))
+#	ccflags-y += -Werror
+#endif
 
 obj-$(CONFIG_DRM_TILCDC_SLAVE_COMPAT) += tilcdc_slave_compat.o \
 					 tilcdc_slave_compat.dtb.o
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_external.c b/drivers/gpu/drm/tilcdc/tilcdc_external.c
index 03acb4f..84edb3a 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_external.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_external.c
@@ -56,7 +56,7 @@ static int tilcdc_add_external_encoder(struct drm_device *dev, int *bpp,
 				       struct drm_connector *connector)
 {
 	struct tilcdc_drm_private *priv = dev->dev_private;
-	struct drm_connector_helper_funcs *connector_funcs;
+	drm_connector_helper_funcs_no_const *connector_funcs;
 
 	priv->connectors[priv->num_connectors] = connector;
 	priv->encoders[priv->num_encoders++] = connector->encoder;
diff --git a/drivers/gpu/drm/ttm/ttm_bo_manager.c b/drivers/gpu/drm/ttm/ttm_bo_manager.c
index aa0bd054..aea6a01 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_manager.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_manager.c
@@ -148,10 +148,10 @@ static void ttm_bo_man_debug(struct ttm_mem_type_manager *man,
 }
 
 const struct ttm_mem_type_manager_func ttm_bo_manager_func = {
-	ttm_bo_man_init,
-	ttm_bo_man_takedown,
-	ttm_bo_man_get_node,
-	ttm_bo_man_put_node,
-	ttm_bo_man_debug
+	.init = ttm_bo_man_init,
+	.takedown = ttm_bo_man_takedown,
+	.get_node = ttm_bo_man_get_node,
+	.put_node = ttm_bo_man_put_node,
+	.debug = ttm_bo_man_debug
 };
 EXPORT_SYMBOL(ttm_bo_manager_func);
diff --git a/drivers/gpu/drm/ttm/ttm_memory.c b/drivers/gpu/drm/ttm/ttm_memory.c
index a1803fb..c53f6b0 100644
--- a/drivers/gpu/drm/ttm/ttm_memory.c
+++ b/drivers/gpu/drm/ttm/ttm_memory.c
@@ -264,7 +264,7 @@ static int ttm_mem_init_kernel_zone(struct ttm_mem_global *glob,
 	zone->glob = glob;
 	glob->zone_kernel = zone;
 	ret = kobject_init_and_add(
-		&zone->kobj, &ttm_mem_zone_kobj_type, &glob->kobj, zone->name);
+		&zone->kobj, &ttm_mem_zone_kobj_type, &glob->kobj, "%s", zone->name);
 	if (unlikely(ret != 0)) {
 		kobject_put(&zone->kobj);
 		return ret;
@@ -348,7 +348,7 @@ static int ttm_mem_init_dma32_zone(struct ttm_mem_global *glob,
 	zone->glob = glob;
 	glob->zone_dma32 = zone;
 	ret = kobject_init_and_add(
-		&zone->kobj, &ttm_mem_zone_kobj_type, &glob->kobj, zone->name);
+		&zone->kobj, &ttm_mem_zone_kobj_type, &glob->kobj, "%s", zone->name);
 	if (unlikely(ret != 0)) {
 		kobject_put(&zone->kobj);
 		return ret;
diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c
index 025c429..314062f 100644
--- a/drivers/gpu/drm/ttm/ttm_page_alloc.c
+++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c
@@ -54,7 +54,7 @@
 
 #define NUM_PAGES_TO_ALLOC		(PAGE_SIZE/sizeof(struct page *))
 #define SMALL_ALLOCATION		16
-#define FREE_ALL_PAGES			(~0U)
+#define FREE_ALL_PAGES			(~0UL)
 /* times are in msecs */
 #define PAGE_FREE_INTERVAL		1000
 
@@ -299,15 +299,14 @@ static void ttm_pool_update_free_locked(struct ttm_page_pool *pool,
  * @free_all: If set to true will free all pages in pool
  * @use_static: Safe to use static buffer
  **/
-static int ttm_page_pool_free(struct ttm_page_pool *pool, unsigned nr_free,
+static unsigned long ttm_page_pool_free(struct ttm_page_pool *pool, unsigned long nr_free,
 			      bool use_static)
 {
 	static struct page *static_buf[NUM_PAGES_TO_ALLOC];
 	unsigned long irq_flags;
 	struct page *p;
 	struct page **pages_to_free;
-	unsigned freed_pages = 0,
-		 npages_to_free = nr_free;
+	unsigned long freed_pages = 0, npages_to_free = nr_free;
 
 	if (NUM_PAGES_TO_ALLOC < nr_free)
 		npages_to_free = NUM_PAGES_TO_ALLOC;
@@ -371,7 +370,8 @@ restart:
 		__list_del(&p->lru, &pool->list);
 
 		ttm_pool_update_free_locked(pool, freed_pages);
-		nr_free -= freed_pages;
+		if (likely(nr_free != FREE_ALL_PAGES))
+			nr_free -= freed_pages;
 	}
 
 	spin_unlock_irqrestore(&pool->lock, irq_flags);
@@ -399,7 +399,7 @@ ttm_pool_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
 	unsigned i;
 	unsigned pool_offset;
 	struct ttm_page_pool *pool;
-	int shrink_pages = sc->nr_to_scan;
+	unsigned long shrink_pages = sc->nr_to_scan;
 	unsigned long freed = 0;
 
 	if (!mutex_trylock(&lock))
@@ -407,7 +407,7 @@ ttm_pool_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
 	pool_offset = ++start_pool % NUM_POOLS;
 	/* select start pool in round robin fashion */
 	for (i = 0; i < NUM_POOLS; ++i) {
-		unsigned nr_free = shrink_pages;
+		unsigned long nr_free = shrink_pages;
 		if (shrink_pages == 0)
 			break;
 		pool = &_manager->pools[(i + pool_offset)%NUM_POOLS];
@@ -673,7 +673,7 @@ out:
 }
 
 /* Put all pages in pages list to correct pool to wait for reuse */
-static void ttm_put_pages(struct page **pages, unsigned npages, int flags,
+static void ttm_put_pages(struct page **pages, unsigned long npages, int flags,
 			  enum ttm_caching_state cstate)
 {
 	unsigned long irq_flags;
@@ -728,7 +728,7 @@ static int ttm_get_pages(struct page **pages, unsigned npages, int flags,
 	struct list_head plist;
 	struct page *p = NULL;
 	gfp_t gfp_flags = GFP_USER;
-	unsigned count;
+	unsigned long count;
 	int r;
 
 	/* set zero flag for page allocation if required */
diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
index 624d941..106fa1f 100644
--- a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
+++ b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
@@ -56,7 +56,7 @@
 
 #define NUM_PAGES_TO_ALLOC		(PAGE_SIZE/sizeof(struct page *))
 #define SMALL_ALLOCATION		4
-#define FREE_ALL_PAGES			(~0U)
+#define FREE_ALL_PAGES			(~0UL)
 /* times are in msecs */
 #define IS_UNDEFINED			(0)
 #define IS_WC				(1<<1)
@@ -416,7 +416,7 @@ static void ttm_dma_page_put(struct dma_pool *pool, struct dma_page *d_page)
  * @nr_free: If set to true will free all pages in pool
  * @use_static: Safe to use static buffer
  **/
-static unsigned ttm_dma_page_pool_free(struct dma_pool *pool, unsigned nr_free,
+static unsigned long ttm_dma_page_pool_free(struct dma_pool *pool, unsigned long nr_free,
 				       bool use_static)
 {
 	static struct page *static_buf[NUM_PAGES_TO_ALLOC];
@@ -424,8 +424,7 @@ static unsigned ttm_dma_page_pool_free(struct dma_pool *pool, unsigned nr_free,
 	struct dma_page *dma_p, *tmp;
 	struct page **pages_to_free;
 	struct list_head d_pages;
-	unsigned freed_pages = 0,
-		 npages_to_free = nr_free;
+	unsigned long freed_pages = 0, npages_to_free = nr_free;
 
 	if (NUM_PAGES_TO_ALLOC < nr_free)
 		npages_to_free = NUM_PAGES_TO_ALLOC;
@@ -502,7 +501,8 @@ restart:
 	/* remove range of pages from the pool */
 	if (freed_pages) {
 		ttm_pool_update_free_locked(pool, freed_pages);
-		nr_free -= freed_pages;
+		if (likely(nr_free != FREE_ALL_PAGES))
+			nr_free -= freed_pages;
 	}
 
 	spin_unlock_irqrestore(&pool->lock, irq_flags);
@@ -939,7 +939,7 @@ void ttm_dma_unpopulate(struct ttm_dma_tt *ttm_dma, struct device *dev)
 	struct dma_page *d_page, *next;
 	enum pool_type type;
 	bool is_cached = false;
-	unsigned count = 0, i, npages = 0;
+	unsigned long count = 0, i, npages = 0;
 	unsigned long irq_flags;
 
 	type = ttm_to_type(ttm->page_flags, ttm->caching_state);
@@ -1014,7 +1014,7 @@ ttm_dma_pool_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
 	static unsigned start_pool;
 	unsigned idx = 0;
 	unsigned pool_offset;
-	unsigned shrink_pages = sc->nr_to_scan;
+	unsigned long shrink_pages = sc->nr_to_scan;
 	struct device_pools *p;
 	unsigned long freed = 0;
 
@@ -1027,7 +1027,7 @@ ttm_dma_pool_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
 		goto out;
 	pool_offset = ++start_pool % _manager->npools;
 	list_for_each_entry(p, &_manager->pools, pools) {
-		unsigned nr_free;
+		unsigned long nr_free;
 
 		if (!p->dev)
 			continue;
@@ -1041,7 +1041,7 @@ ttm_dma_pool_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
 		shrink_pages = ttm_dma_page_pool_free(p->pool, nr_free, true);
 		freed += nr_free - shrink_pages;
 
-		pr_debug("%s: (%s:%d) Asked to shrink %d, have %d more to go\n",
+		pr_debug("%s: (%s:%d) Asked to shrink %lu, have %lu more to go\n",
 			 p->pool->dev_name, p->pool->name, current->pid,
 			 nr_free, shrink_pages);
 	}
diff --git a/drivers/gpu/drm/udl/udl_connector.c b/drivers/gpu/drm/udl/udl_connector.c
index 4709b54..beb015d 100644
--- a/drivers/gpu/drm/udl/udl_connector.c
+++ b/drivers/gpu/drm/udl/udl_connector.c
@@ -80,7 +80,7 @@ static int udl_get_modes(struct drm_connector *connector)
 	return ret;
 }
 
-static int udl_mode_valid(struct drm_connector *connector,
+static enum drm_mode_status udl_mode_valid(struct drm_connector *connector,
 			  struct drm_display_mode *mode)
 {
 	struct udl_device *udl = connector->dev->dev_private;
diff --git a/drivers/gpu/drm/udl/udl_fb.c b/drivers/gpu/drm/udl/udl_fb.c
index fd1eb9d..8ef346a 100644
--- a/drivers/gpu/drm/udl/udl_fb.c
+++ b/drivers/gpu/drm/udl/udl_fb.c
@@ -366,7 +366,6 @@ static int udl_fb_release(struct fb_info *info, int user)
 		fb_deferred_io_cleanup(info);
 		kfree(info->fbdefio);
 		info->fbdefio = NULL;
-		info->fbops->fb_mmap = udl_fb_mmap;
 	}
 
 	pr_warn("released /dev/fb%d user=%d count=%d\n",
diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c
index b7d2ff0..d2e1f7b 100644
--- a/drivers/gpu/drm/vc4/vc4_drv.c
+++ b/drivers/gpu/drm/vc4/vc4_drv.c
@@ -132,6 +132,11 @@ static int compare_dev(struct device *dev, void *data)
 	return dev == data;
 }
 
+static int vc4_match(struct device *dev, void *drv)
+{
+	return platform_bus_type.match(dev, drv);
+}
+
 static void vc4_match_add_drivers(struct device *dev,
 				  struct component_match **match,
 				  struct platform_driver *const *drivers,
@@ -143,8 +148,7 @@ static void vc4_match_add_drivers(struct device *dev,
 		struct device_driver *drv = &drivers[i]->driver;
 		struct device *p = NULL, *d;
 
-		while ((d = bus_find_device(&platform_bus_type, p, drv,
-					    (void *)platform_bus_type.match))) {
+		while ((d = bus_find_device(&platform_bus_type, p, drv, vc4_match))) {
 			put_device(p);
 			component_match_add(dev, match, compare_dev, d);
 			p = d;
diff --git a/drivers/gpu/drm/via/via_dma.c b/drivers/gpu/drm/via/via_dma.c
index d17d8f2..67e8e48b 100644
--- a/drivers/gpu/drm/via/via_dma.c
+++ b/drivers/gpu/drm/via/via_dma.c
@@ -737,4 +737,4 @@ const struct drm_ioctl_desc via_ioctls[] = {
 	DRM_IOCTL_DEF_DRV(VIA_BLIT_SYNC, via_dma_blit_sync, DRM_AUTH)
 };
 
-int via_max_ioctl = ARRAY_SIZE(via_ioctls);
+const int via_max_ioctl = ARRAY_SIZE(via_ioctls);
diff --git a/drivers/gpu/drm/via/via_drv.c b/drivers/gpu/drm/via/via_drv.c
index ed8aa8f..114cc8d 100644
--- a/drivers/gpu/drm/via/via_drv.c
+++ b/drivers/gpu/drm/via/via_drv.c
@@ -107,7 +107,10 @@ static struct pci_driver via_pci_driver = {
 
 static int __init via_init(void)
 {
-	driver.num_ioctls = via_max_ioctl;
+	pax_open_kernel();
+	const_cast(driver.num_ioctls) = via_max_ioctl;
+	pax_close_kernel();
+
 	via_init_command_verifier();
 	return drm_pci_init(&driver, &via_pci_driver);
 }
diff --git a/drivers/gpu/drm/via/via_drv.h b/drivers/gpu/drm/via/via_drv.h
index 286a785..c0182616 100644
--- a/drivers/gpu/drm/via/via_drv.h
+++ b/drivers/gpu/drm/via/via_drv.h
@@ -53,7 +53,7 @@ typedef struct drm_via_ring_buffer {
 typedef uint32_t maskarray_t[5];
 
 typedef struct drm_via_irq {
-	atomic_t irq_received;
+	atomic_unchecked_t irq_received;
 	uint32_t pending_mask;
 	uint32_t enable_mask;
 	wait_queue_head_t irq_queue;
@@ -77,7 +77,7 @@ typedef struct drm_via_private {
 	struct timeval last_vblank;
 	int last_vblank_valid;
 	unsigned usec_per_vblank;
-	atomic_t vbl_received;
+	atomic_unchecked_t vbl_received;
 	drm_via_state_t hc_state;
 	char pci_buf[VIA_PCI_BUF_SIZE];
 	const uint32_t *fire_offsets[VIA_FIRE_BUF_SIZE];
@@ -121,7 +121,7 @@ enum via_family {
 #define VIA_WRITE8(reg, val)	DRM_WRITE8(VIA_BASE, reg, val)
 
 extern const struct drm_ioctl_desc via_ioctls[];
-extern int via_max_ioctl;
+extern const int via_max_ioctl;
 
 extern int via_fb_init(struct drm_device *dev, void *data, struct drm_file *file_priv);
 extern int via_mem_alloc(struct drm_device *dev, void *data, struct drm_file *file_priv);
diff --git a/drivers/gpu/drm/via/via_irq.c b/drivers/gpu/drm/via/via_irq.c
index ea8172c..6ceff63 100644
--- a/drivers/gpu/drm/via/via_irq.c
+++ b/drivers/gpu/drm/via/via_irq.c
@@ -102,7 +102,7 @@ u32 via_get_vblank_counter(struct drm_device *dev, unsigned int pipe)
 	if (pipe != 0)
 		return 0;
 
-	return atomic_read(&dev_priv->vbl_received);
+	return atomic_read_unchecked(&dev_priv->vbl_received);
 }
 
 irqreturn_t via_driver_irq_handler(int irq, void *arg)
@@ -117,8 +117,8 @@ irqreturn_t via_driver_irq_handler(int irq, void *arg)
 
 	status = VIA_READ(VIA_REG_INTERRUPT);
 	if (status & VIA_IRQ_VBLANK_PENDING) {
-		atomic_inc(&dev_priv->vbl_received);
-		if (!(atomic_read(&dev_priv->vbl_received) & 0x0F)) {
+		atomic_inc_unchecked(&dev_priv->vbl_received);
+		if (!(atomic_read_unchecked(&dev_priv->vbl_received) & 0x0F)) {
 			do_gettimeofday(&cur_vblank);
 			if (dev_priv->last_vblank_valid) {
 				dev_priv->usec_per_vblank =
@@ -128,7 +128,7 @@ irqreturn_t via_driver_irq_handler(int irq, void *arg)
 			dev_priv->last_vblank = cur_vblank;
 			dev_priv->last_vblank_valid = 1;
 		}
-		if (!(atomic_read(&dev_priv->vbl_received) & 0xFF)) {
+		if (!(atomic_read_unchecked(&dev_priv->vbl_received) & 0xFF)) {
 			DRM_DEBUG("US per vblank is: %u\n",
 				  dev_priv->usec_per_vblank);
 		}
@@ -138,7 +138,7 @@ irqreturn_t via_driver_irq_handler(int irq, void *arg)
 
 	for (i = 0; i < dev_priv->num_irqs; ++i) {
 		if (status & cur_irq->pending_mask) {
-			atomic_inc(&cur_irq->irq_received);
+			atomic_inc_unchecked(&cur_irq->irq_received);
 			wake_up(&cur_irq->irq_queue);
 			handled = 1;
 			if (dev_priv->irq_map[drm_via_irq_dma0_td] == i)
@@ -243,11 +243,11 @@ via_driver_irq_wait(struct drm_device *dev, unsigned int irq, int force_sequence
 		DRM_WAIT_ON(ret, cur_irq->irq_queue, 3 * HZ,
 			    ((VIA_READ(masks[irq][2]) & masks[irq][3]) ==
 			     masks[irq][4]));
-		cur_irq_sequence = atomic_read(&cur_irq->irq_received);
+		cur_irq_sequence = atomic_read_unchecked(&cur_irq->irq_received);
 	} else {
 		DRM_WAIT_ON(ret, cur_irq->irq_queue, 3 * HZ,
 			    (((cur_irq_sequence =
-			       atomic_read(&cur_irq->irq_received)) -
+			       atomic_read_unchecked(&cur_irq->irq_received)) -
 			      *sequence) <= (1 << 23)));
 	}
 	*sequence = cur_irq_sequence;
@@ -285,7 +285,7 @@ void via_driver_irq_preinstall(struct drm_device *dev)
 		}
 
 		for (i = 0; i < dev_priv->num_irqs; ++i) {
-			atomic_set(&cur_irq->irq_received, 0);
+			atomic_set_unchecked(&cur_irq->irq_received, 0);
 			cur_irq->enable_mask = dev_priv->irq_masks[i][0];
 			cur_irq->pending_mask = dev_priv->irq_masks[i][1];
 			init_waitqueue_head(&cur_irq->irq_queue);
@@ -367,7 +367,7 @@ int via_wait_irq(struct drm_device *dev, void *data, struct drm_file *file_priv)
 	switch (irqwait->request.type & ~VIA_IRQ_FLAGS_MASK) {
 	case VIA_IRQ_RELATIVE:
 		irqwait->request.sequence +=
-			atomic_read(&cur_irq->irq_received);
+			atomic_read_unchecked(&cur_irq->irq_received);
 		irqwait->request.type &= ~_DRM_VBLANK_RELATIVE;
 	case VIA_IRQ_ABSOLUTE:
 		break;
diff --git a/drivers/gpu/drm/virtio/virtgpu_display.c b/drivers/gpu/drm/virtio/virtgpu_display.c
index 5fd1fd0..0766d9b 100644
--- a/drivers/gpu/drm/virtio/virtgpu_display.c
+++ b/drivers/gpu/drm/virtio/virtgpu_display.c
@@ -327,7 +327,7 @@ static int virtio_gpu_conn_get_modes(struct drm_connector *connector)
 	return count;
 }
 
-static int virtio_gpu_conn_mode_valid(struct drm_connector *connector,
+static enum drm_mode_status virtio_gpu_conn_mode_valid(struct drm_connector *connector,
 				      struct drm_display_mode *mode)
 {
 	struct virtio_gpu_output *output =
diff --git a/drivers/gpu/drm/virtio/virtgpu_ttm.c b/drivers/gpu/drm/virtio/virtgpu_ttm.c
index 9fd924c..c64b065 100644
--- a/drivers/gpu/drm/virtio/virtgpu_ttm.c
+++ b/drivers/gpu/drm/virtio/virtgpu_ttm.c
@@ -198,11 +198,11 @@ static void ttm_bo_man_debug(struct ttm_mem_type_manager *man,
 }
 
 static const struct ttm_mem_type_manager_func virtio_gpu_bo_manager_func = {
-	ttm_bo_man_init,
-	ttm_bo_man_takedown,
-	ttm_bo_man_get_node,
-	ttm_bo_man_put_node,
-	ttm_bo_man_debug
+	.init = &ttm_bo_man_init,
+	.takedown = &ttm_bo_man_takedown,
+	.get_node = &ttm_bo_man_get_node,
+	.put_node = &ttm_bo_man_put_node,
+	.debug = &ttm_bo_man_debug
 };
 
 static int virtio_gpu_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
index 6db358a..6401339 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
@@ -437,7 +437,7 @@ struct vmw_private {
 	 * Fencing and IRQs.
 	 */
 
-	atomic_t marker_seq;
+	atomic_unchecked_t marker_seq;
 	wait_queue_head_t fence_queue;
 	wait_queue_head_t fifo_queue;
 	spinlock_t waiter_lock;
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
index b6a0806..9fb5479 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
@@ -156,7 +156,7 @@ int vmw_fifo_init(struct vmw_private *dev_priv, struct vmw_fifo_state *fifo)
 		 (unsigned int) min,
 		 (unsigned int) fifo->capabilities);
 
-	atomic_set(&dev_priv->marker_seq, dev_priv->last_read_seqno);
+	atomic_set_unchecked(&dev_priv->marker_seq, dev_priv->last_read_seqno);
 	vmw_mmio_write(dev_priv->last_read_seqno, fifo_mem + SVGA_FIFO_FENCE);
 	vmw_marker_queue_init(&fifo->marker_queue);
 
@@ -355,7 +355,7 @@ static void *vmw_local_fifo_reserve(struct vmw_private *dev_priv,
 				if (reserveable)
 					vmw_mmio_write(bytes, fifo_mem +
 						       SVGA_FIFO_RESERVED);
-				return (void __force *) (fifo_mem +
+				return (void __force_kernel *) (fifo_mem +
 							 (next_cmd >> 2));
 			} else {
 				need_bounce = true;
@@ -544,7 +544,7 @@ int vmw_fifo_send_fence(struct vmw_private *dev_priv, uint32_t *seqno)
 
 	fm = vmw_fifo_reserve(dev_priv, bytes);
 	if (unlikely(fm == NULL)) {
-		*seqno = atomic_read(&dev_priv->marker_seq);
+		*seqno = atomic_read_unchecked(&dev_priv->marker_seq);
 		ret = -ENOMEM;
 		(void)vmw_fallback_wait(dev_priv, false, true, *seqno,
 					false, 3*HZ);
@@ -552,7 +552,7 @@ int vmw_fifo_send_fence(struct vmw_private *dev_priv, uint32_t *seqno)
 	}
 
 	do {
-		*seqno = atomic_add_return(1, &dev_priv->marker_seq);
+		*seqno = atomic_add_return_unchecked(1, &dev_priv->marker_seq);
 	} while (*seqno == 0);
 
 	if (!(fifo_state->capabilities & SVGA_FIFO_CAP_FENCE)) {
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c b/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
index 170b61b..fec7348 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
@@ -164,9 +164,9 @@ static void vmw_gmrid_man_debug(struct ttm_mem_type_manager *man,
 }
 
 const struct ttm_mem_type_manager_func vmw_gmrid_manager_func = {
-	vmw_gmrid_man_init,
-	vmw_gmrid_man_takedown,
-	vmw_gmrid_man_get_node,
-	vmw_gmrid_man_put_node,
-	vmw_gmrid_man_debug
+	.init = vmw_gmrid_man_init,
+	.takedown = vmw_gmrid_man_takedown,
+	.get_node = vmw_gmrid_man_get_node,
+	.put_node = vmw_gmrid_man_put_node,
+	.debug = vmw_gmrid_man_debug
 };
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c b/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c
index 0c7e172..ead94fc 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c
@@ -103,7 +103,7 @@ bool vmw_seqno_passed(struct vmw_private *dev_priv,
 	 * emitted. Then the fence is stale and signaled.
 	 */
 
-	ret = ((atomic_read(&dev_priv->marker_seq) - seqno)
+	ret = ((atomic_read_unchecked(&dev_priv->marker_seq) - seqno)
 	       > VMW_FENCE_WRAP);
 
 	return ret;
@@ -142,7 +142,7 @@ int vmw_fallback_wait(struct vmw_private *dev_priv,
 		}
 	}
 
-	signal_seq = atomic_read(&dev_priv->marker_seq);
+	signal_seq = atomic_read_unchecked(&dev_priv->marker_seq);
 	ret = 0;
 
 	for (;;) {
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c b/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c
index efd1ffd..0ae13ca 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c
@@ -135,7 +135,7 @@ int vmw_wait_lag(struct vmw_private *dev_priv,
 	while (!vmw_lag_lt(queue, us)) {
 		spin_lock(&queue->lock);
 		if (list_empty(&queue->head))
-			seqno = atomic_read(&dev_priv->marker_seq);
+			seqno = atomic_read_unchecked(&dev_priv->marker_seq);
 		else {
 			marker = list_first_entry(&queue->head,
 						 struct vmw_marker, head);
diff --git a/drivers/gpu/vga/vga_switcheroo.c b/drivers/gpu/vga/vga_switcheroo.c
index cbd7c98..170a5ba 100644
--- a/drivers/gpu/vga/vga_switcheroo.c
+++ b/drivers/gpu/vga/vga_switcheroo.c
@@ -1024,7 +1024,7 @@ static int vga_switcheroo_runtime_resume(struct device *dev)
  * where the power switch is separate to the device being powered down.
  */
 int vga_switcheroo_init_domain_pm_ops(struct device *dev,
-				      struct dev_pm_domain *domain)
+				      dev_pm_domain_no_const *domain)
 {
 	/* copy over all the bus versions */
 	if (dev->bus && dev->bus->pm) {
@@ -1095,7 +1095,7 @@ static int vga_switcheroo_runtime_resume_hdmi_audio(struct device *dev)
  */
 int
 vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev,
-						 struct dev_pm_domain *domain)
+						 dev_pm_domain_no_const *domain)
 {
 	/* copy over all the bus versions */
 	if (dev->bus && dev->bus->pm) {
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 4f9c5c6..50d91fb 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -2635,7 +2635,7 @@ EXPORT_SYMBOL_GPL(hid_ignore);
 
 int hid_add_device(struct hid_device *hdev)
 {
-	static atomic_t id = ATOMIC_INIT(0);
+	static atomic_unchecked_t id = ATOMIC_INIT(0);
 	int ret;
 
 	if (WARN_ON(hdev->status & HID_STAT_ADDED))
@@ -2679,7 +2679,7 @@ int hid_add_device(struct hid_device *hdev)
 	/* XXX hack, any other cleaner solution after the driver core
 	 * is converted to allow more than 20 bytes as the device name? */
 	dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
-		     hdev->vendor, hdev->product, atomic_inc_return(&id));
+		     hdev->vendor, hdev->product, atomic_inc_return_unchecked(&id));
 
 	hid_debug_register(hdev, dev_name(&hdev->dev));
 	ret = device_add(&hdev->dev);
diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c
index d6fa496..dde31aa 100644
--- a/drivers/hid/hid-magicmouse.c
+++ b/drivers/hid/hid-magicmouse.c
@@ -34,7 +34,7 @@ module_param(emulate_scroll_wheel, bool, 0644);
 MODULE_PARM_DESC(emulate_scroll_wheel, "Emulate a scroll wheel");
 
 static unsigned int scroll_speed = 32;
-static int param_set_scroll_speed(const char *val, struct kernel_param *kp) {
+static int param_set_scroll_speed(const char *val, const struct kernel_param *kp) {
 	unsigned long speed;
 	if (!val || kstrtoul(val, 0, &speed) || speed > 63)
 		return -EINVAL;
diff --git a/drivers/hid/hid-sensor-custom.c b/drivers/hid/hid-sensor-custom.c
index 5614fee..8a6f5f6 100644
--- a/drivers/hid/hid-sensor-custom.c
+++ b/drivers/hid/hid-sensor-custom.c
@@ -590,7 +590,7 @@ static int hid_sensor_custom_add_attributes(struct hid_sensor_custom
 		j = 0;
 		while (j < HID_CUSTOM_TOTAL_ATTRS &&
 		       hid_custom_attrs[j].name) {
-			struct device_attribute *device_attr;
+			device_attribute_no_const *device_attr;
 
 			device_attr = &sensor_inst->fields[i].sd_attrs[j];
 
diff --git a/drivers/hid/hid-wiimote-debug.c b/drivers/hid/hid-wiimote-debug.c
index c13fb5b..55a3802 100644
--- a/drivers/hid/hid-wiimote-debug.c
+++ b/drivers/hid/hid-wiimote-debug.c
@@ -66,7 +66,7 @@ static ssize_t wiidebug_eeprom_read(struct file *f, char __user *u, size_t s,
 	else if (size == 0)
 		return -EIO;
 
-	if (copy_to_user(u, buf, size))
+	if (size > sizeof(buf) || copy_to_user(u, buf, size))
 		return -EFAULT;
 
 	*off += size;
diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c
index 2f1ddca..700145b 100644
--- a/drivers/hid/usbhid/hiddev.c
+++ b/drivers/hid/usbhid/hiddev.c
@@ -516,13 +516,13 @@ static noinline int hiddev_ioctl_usage(struct hiddev *hiddev, unsigned int cmd,
 					goto inval;
 			} else if (uref->usage_index >= field->report_count)
 				goto inval;
-
-			else if ((cmd == HIDIOCGUSAGES || cmd == HIDIOCSUSAGES) &&
-				 (uref_multi->num_values > HID_MAX_MULTI_USAGES ||
-				  uref->usage_index + uref_multi->num_values > field->report_count))
-				goto inval;
 		}
 
+		if ((cmd == HIDIOCGUSAGES || cmd == HIDIOCSUSAGES) &&
+		    (uref_multi->num_values > HID_MAX_MULTI_USAGES ||
+		     uref->usage_index + uref_multi->num_values > field->report_count))
+			goto inval;
+
 		switch (cmd) {
 		case HIDIOCGUSAGE:
 			uref->value = field->value[uref->usage_index];
diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index 56dd261..493d7e0 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -398,7 +398,7 @@ int vmbus_establish_gpadl(struct vmbus_channel *channel, void *kbuffer,
 	int ret = 0;
 
 	next_gpadl_handle =
-		(atomic_inc_return(&vmbus_connection.next_gpadl_handle) - 1);
+		(atomic_inc_return_unchecked(&vmbus_connection.next_gpadl_handle) - 1);
 
 	ret = create_gpadl_header(kbuffer, size, &msginfo, &msgcount);
 	if (ret)
@@ -749,9 +749,7 @@ int vmbus_sendpacket_pagebuffer_ctl(struct vmbus_channel *channel,
 	 * Adjust the size down since vmbus_channel_packet_page_buffer is the
 	 * largest size we support
 	 */
-	descsize = sizeof(struct vmbus_channel_packet_page_buffer) -
-			  ((MAX_PAGE_BUFFER_COUNT - pagecount) *
-			  sizeof(struct hv_page_buffer));
+	descsize = offsetof(struct vmbus_channel_packet_page_buffer, range[pagecount]);
 	packetlen = descsize + bufferlen;
 	packetlen_aligned = ALIGN(packetlen, sizeof(u64));
 
diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c
index a1c086b..b45a999 100644
--- a/drivers/hv/hv.c
+++ b/drivers/hv/hv.c
@@ -183,6 +183,7 @@ static struct clocksource hyperv_cs_tsc = {
 };
 #endif
 
+static char hv_hypercall_page[PAGE_SIZE] __aligned(PAGE_SIZE) __used __section(".text");
 
 /*
  * hv_init - Main initialization routine.
@@ -193,7 +194,6 @@ int hv_init(void)
 {
 	int max_leaf;
 	union hv_x64_msr_hypercall_contents hypercall_msr;
-	void *virtaddr = NULL;
 
 	memset(hv_context.synic_event_page, 0, sizeof(void *) * NR_CPUS);
 	memset(hv_context.synic_message_page, 0,
@@ -220,14 +220,9 @@ int hv_init(void)
 	/* See if the hypercall page is already set */
 	rdmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
 
-	virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_EXEC);
-
-	if (!virtaddr)
-		goto cleanup;
-
 	hypercall_msr.enable = 1;
 
-	hypercall_msr.guest_physical_address = vmalloc_to_pfn(virtaddr);
+	hypercall_msr.guest_physical_address = __phys_to_pfn(__pa(ktla_ktva((unsigned long)hv_hypercall_page)));
 	wrmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
 
 	/* Confirm that hypercall page did get setup. */
@@ -237,7 +232,7 @@ int hv_init(void)
 	if (!hypercall_msr.enable)
 		goto cleanup;
 
-	hv_context.hypercall_page = virtaddr;
+	hv_context.hypercall_page = hv_hypercall_page;
 
 #ifdef CONFIG_X86_64
 	if (ms_hyperv.features & HV_X64_MSR_REFERENCE_TSC_AVAILABLE) {
@@ -261,13 +256,9 @@ int hv_init(void)
 	return 0;
 
 cleanup:
-	if (virtaddr) {
-		if (hypercall_msr.enable) {
-			hypercall_msr.as_uint64 = 0;
-			wrmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
-		}
-
-		vfree(virtaddr);
+	if (hypercall_msr.enable) {
+		hypercall_msr.as_uint64 = 0;
+		wrmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
 	}
 
 	return -ENOTSUPP;
@@ -288,7 +279,6 @@ void hv_cleanup(void)
 	if (hv_context.hypercall_page) {
 		hypercall_msr.as_uint64 = 0;
 		wrmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
-		vfree(hv_context.hypercall_page);
 		hv_context.hypercall_page = NULL;
 	}
 
diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c
index b853b4b..3647b37 100644
--- a/drivers/hv/hv_balloon.c
+++ b/drivers/hv/hv_balloon.c
@@ -471,7 +471,7 @@ MODULE_PARM_DESC(hot_add, "If set attempt memory hot_add");
 
 module_param(pressure_report_delay, uint, (S_IRUGO | S_IWUSR));
 MODULE_PARM_DESC(pressure_report_delay, "Delay in secs in reporting pressure");
-static atomic_t trans_id = ATOMIC_INIT(0);
+static atomic_unchecked_t trans_id = ATOMIC_INIT(0);
 
 static int dm_ring_size = (5 * PAGE_SIZE);
 
@@ -945,7 +945,7 @@ static void hot_add_req(struct work_struct *dummy)
 		pr_info("Memory hot add failed\n");
 
 	dm->state = DM_INITIALIZED;
-	resp.hdr.trans_id = atomic_inc_return(&trans_id);
+	resp.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
 	vmbus_sendpacket(dm->dev->channel, &resp,
 			sizeof(struct dm_hot_add_response),
 			(unsigned long)NULL,
@@ -1026,7 +1026,7 @@ static void post_status(struct hv_dynmem_device *dm)
 	memset(&status, 0, sizeof(struct dm_status));
 	status.hdr.type = DM_STATUS_REPORT;
 	status.hdr.size = sizeof(struct dm_status);
-	status.hdr.trans_id = atomic_inc_return(&trans_id);
+	status.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
 
 	/*
 	 * The host expects the guest to report free and committed memory.
@@ -1050,7 +1050,7 @@ static void post_status(struct hv_dynmem_device *dm)
 	 * send the status. This can happen if we were interrupted
 	 * after we picked our transaction ID.
 	 */
-	if (status.hdr.trans_id != atomic_read(&trans_id))
+	if (status.hdr.trans_id != atomic_read_unchecked(&trans_id))
 		return;
 
 	/*
@@ -1195,7 +1195,7 @@ static void balloon_up(struct work_struct *dummy)
 		 */
 
 		do {
-			bl_resp->hdr.trans_id = atomic_inc_return(&trans_id);
+			bl_resp->hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
 			ret = vmbus_sendpacket(dm_device.dev->channel,
 						bl_resp,
 						bl_resp->hdr.size,
@@ -1241,7 +1241,7 @@ static void balloon_down(struct hv_dynmem_device *dm,
 
 	memset(&resp, 0, sizeof(struct dm_unballoon_response));
 	resp.hdr.type = DM_UNBALLOON_RESPONSE;
-	resp.hdr.trans_id = atomic_inc_return(&trans_id);
+	resp.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
 	resp.hdr.size = sizeof(struct dm_unballoon_response);
 
 	vmbus_sendpacket(dm_device.dev->channel, &resp,
@@ -1301,7 +1301,7 @@ static void version_resp(struct hv_dynmem_device *dm,
 	memset(&version_req, 0, sizeof(struct dm_version_request));
 	version_req.hdr.type = DM_VERSION_REQUEST;
 	version_req.hdr.size = sizeof(struct dm_version_request);
-	version_req.hdr.trans_id = atomic_inc_return(&trans_id);
+	version_req.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
 	version_req.version.version = dm->next_version;
 
 	/*
@@ -1487,7 +1487,7 @@ static int balloon_probe(struct hv_device *dev,
 	memset(&version_req, 0, sizeof(struct dm_version_request));
 	version_req.hdr.type = DM_VERSION_REQUEST;
 	version_req.hdr.size = sizeof(struct dm_version_request);
-	version_req.hdr.trans_id = atomic_inc_return(&trans_id);
+	version_req.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
 	version_req.version.version = DYNMEM_PROTOCOL_VERSION_WIN10;
 	version_req.is_last_attempt = 0;
 
@@ -1518,7 +1518,7 @@ static int balloon_probe(struct hv_device *dev,
 	memset(&cap_msg, 0, sizeof(struct dm_capabilities));
 	cap_msg.hdr.type = DM_CAPABILITIES_REPORT;
 	cap_msg.hdr.size = sizeof(struct dm_capabilities);
-	cap_msg.hdr.trans_id = atomic_inc_return(&trans_id);
+	cap_msg.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
 
 	cap_msg.caps.cap_bits.balloon = 1;
 	cap_msg.caps.cap_bits.hot_add = 1;
diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
index 12321b9..89d89f2 100644
--- a/drivers/hv/hyperv_vmbus.h
+++ b/drivers/hv/hyperv_vmbus.h
@@ -561,7 +561,7 @@ enum vmbus_connect_state {
 struct vmbus_connection {
 	enum vmbus_connect_state conn_state;
 
-	atomic_t next_gpadl_handle;
+	atomic_unchecked_t next_gpadl_handle;
 
 	struct completion  unload_event;
 	/*
diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c
index 579bdf9..0dac21d5 100644
--- a/drivers/hwmon/acpi_power_meter.c
+++ b/drivers/hwmon/acpi_power_meter.c
@@ -116,7 +116,7 @@ struct sensor_template {
 		       struct device_attribute *devattr,
 		       const char *buf, size_t count);
 	int index;
-};
+} __do_const;
 
 /* Averaging interval */
 static int update_avg_interval(struct acpi_power_meter_resource *resource)
@@ -631,7 +631,7 @@ static int register_attrs(struct acpi_power_meter_resource *resource,
 			  struct sensor_template *attrs)
 {
 	struct device *dev = &resource->acpi_dev->dev;
-	struct sensor_device_attribute *sensors =
+	sensor_device_attribute_no_const *sensors =
 		&resource->sensors[resource->num_sensors];
 	int res = 0;
 
@@ -973,7 +973,7 @@ static int __init enable_cap_knobs(const struct dmi_system_id *d)
 	return 0;
 }
 
-static struct dmi_system_id __initdata pm_dmi_table[] = {
+static const struct dmi_system_id __initconst pm_dmi_table[] = {
 	{
 		enable_cap_knobs, "IBM Active Energy Manager",
 		{
diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c
index 0af7fd3..9aade6a 100644
--- a/drivers/hwmon/applesmc.c
+++ b/drivers/hwmon/applesmc.c
@@ -1105,7 +1105,7 @@ static int applesmc_create_nodes(struct applesmc_node_group *groups, int num)
 {
 	struct applesmc_node_group *grp;
 	struct applesmc_dev_attr *node;
-	struct attribute *attr;
+	attribute_no_const *attr;
 	int ret, i;
 
 	for (grp = groups; grp->format; grp++) {
@@ -1242,7 +1242,7 @@ static int applesmc_dmi_match(const struct dmi_system_id *id)
  * Note that DMI_MATCH(...,"MacBook") will match "MacBookPro1,1".
  * So we need to put "Apple MacBook Pro" before "Apple MacBook".
  */
-static __initdata struct dmi_system_id applesmc_whitelist[] = {
+static __initconst struct dmi_system_id applesmc_whitelist[] = {
 	{ applesmc_dmi_match, "Apple MacBook Air", {
 	  DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
 	  DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir") },
diff --git a/drivers/hwmon/asus_atk0110.c b/drivers/hwmon/asus_atk0110.c
index cccef87..06ce8ec 100644
--- a/drivers/hwmon/asus_atk0110.c
+++ b/drivers/hwmon/asus_atk0110.c
@@ -147,10 +147,10 @@ MODULE_DEVICE_TABLE(acpi, atk_ids);
 struct atk_sensor_data {
 	struct list_head list;
 	struct atk_data *data;
-	struct device_attribute label_attr;
-	struct device_attribute input_attr;
-	struct device_attribute limit1_attr;
-	struct device_attribute limit2_attr;
+	device_attribute_no_const label_attr;
+	device_attribute_no_const input_attr;
+	device_attribute_no_const limit1_attr;
+	device_attribute_no_const limit2_attr;
 	char label_attr_name[ATTR_NAME_SIZE];
 	char input_attr_name[ATTR_NAME_SIZE];
 	char limit1_attr_name[ATTR_NAME_SIZE];
@@ -270,7 +270,7 @@ static ssize_t atk_name_show(struct device *dev,
 static struct device_attribute atk_name_attr =
 		__ATTR(name, 0444, atk_name_show, NULL);
 
-static void atk_init_attribute(struct device_attribute *attr, char *name,
+static void atk_init_attribute(device_attribute_no_const *attr, char *name,
 		sysfs_show_func show)
 {
 	sysfs_attr_init(&attr->attr);
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index 6a27eb2..349ed23 100644
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -783,7 +783,7 @@ static int coretemp_cpu_callback(struct notifier_block *nfb,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block coretemp_cpu_notifier __refdata = {
+static struct notifier_block coretemp_cpu_notifier = {
 	.notifier_call = coretemp_cpu_callback,
 };
 
diff --git a/drivers/hwmon/dell-smm-hwmon.c b/drivers/hwmon/dell-smm-hwmon.c
index c43318d..24bfd03 100644
--- a/drivers/hwmon/dell-smm-hwmon.c
+++ b/drivers/hwmon/dell-smm-hwmon.c
@@ -819,7 +819,7 @@ static const struct i8k_config_data i8k_config_data[] = {
 	},
 };
 
-static struct dmi_system_id i8k_dmi_table[] __initdata = {
+static const struct dmi_system_id i8k_dmi_table[] __initconst = {
 	{
 		.ident = "Dell Inspiron",
 		.matches = {
@@ -929,7 +929,7 @@ static struct dmi_system_id i8k_dmi_table[] __initdata = {
 
 MODULE_DEVICE_TABLE(dmi, i8k_dmi_table);
 
-static struct dmi_system_id i8k_blacklist_dmi_table[] __initdata = {
+static const struct dmi_system_id i8k_blacklist_dmi_table[] __initconst = {
 	{
 		/*
 		 * CPU fan speed going up and down on Dell Studio XPS 8000
diff --git a/drivers/hwmon/ibmaem.c b/drivers/hwmon/ibmaem.c
index 1f64378..2b6e615 100644
--- a/drivers/hwmon/ibmaem.c
+++ b/drivers/hwmon/ibmaem.c
@@ -924,7 +924,7 @@ static int aem_register_sensors(struct aem_data *data,
 				const struct aem_rw_sensor_template *rw)
 {
 	struct device *dev = &data->pdev->dev;
-	struct sensor_device_attribute *sensors = data->sensors;
+	sensor_device_attribute_no_const *sensors = data->sensors;
 	int err;
 
 	/* Set up read-only sensors */
diff --git a/drivers/hwmon/iio_hwmon.c b/drivers/hwmon/iio_hwmon.c
index b550ba5..684d8e3 100644
--- a/drivers/hwmon/iio_hwmon.c
+++ b/drivers/hwmon/iio_hwmon.c
@@ -61,7 +61,7 @@ static int iio_hwmon_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct iio_hwmon_state *st;
-	struct sensor_device_attribute *a;
+	sensor_device_attribute_no_const *a;
 	int ret, i;
 	int in_i = 1, temp_i = 1, curr_i = 1, humidity_i = 1;
 	enum iio_chan_type type;
diff --git a/drivers/hwmon/nct6683.c b/drivers/hwmon/nct6683.c
index 559c596..3de1a96 100644
--- a/drivers/hwmon/nct6683.c
+++ b/drivers/hwmon/nct6683.c
@@ -404,11 +404,11 @@ nct6683_create_attr_group(struct device *dev,
 			  const struct sensor_template_group *tg,
 			  int repeat)
 {
-	struct sensor_device_attribute_2 *a2;
-	struct sensor_device_attribute *a;
+	sensor_device_attribute_2_no_const *a2;
+	sensor_device_attribute_no_const *a;
 	struct sensor_device_template **t;
 	struct sensor_device_attr_u *su;
-	struct attribute_group *group;
+	attribute_group_no_const *group;
 	struct attribute **attrs;
 	int i, j, count;
 
diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
index d087a8e..54e963a 100644
--- a/drivers/hwmon/nct6775.c
+++ b/drivers/hwmon/nct6775.c
@@ -1049,10 +1049,10 @@ nct6775_create_attr_group(struct device *dev,
 			  const struct sensor_template_group *tg,
 			  int repeat)
 {
-	struct attribute_group *group;
+	attribute_group_no_const *group;
 	struct sensor_device_attr_u *su;
-	struct sensor_device_attribute *a;
-	struct sensor_device_attribute_2 *a2;
+	sensor_device_attribute_no_const *a;
+	sensor_device_attribute_2_no_const *a2;
 	struct attribute **attrs;
 	struct sensor_device_template **t;
 	int i, count;
diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c
index ba59eae..dbf694c 100644
--- a/drivers/hwmon/pmbus/pmbus_core.c
+++ b/drivers/hwmon/pmbus/pmbus_core.c
@@ -824,7 +824,7 @@ static int pmbus_add_attribute(struct pmbus_data *data, struct attribute *attr)
 	return 0;
 }
 
-static void pmbus_dev_attr_init(struct device_attribute *dev_attr,
+static void pmbus_dev_attr_init(device_attribute_no_const *dev_attr,
 				const char *name,
 				umode_t mode,
 				ssize_t (*show)(struct device *dev,
@@ -841,7 +841,7 @@ static void pmbus_dev_attr_init(struct device_attribute *dev_attr,
 	dev_attr->store = store;
 }
 
-static void pmbus_attr_init(struct sensor_device_attribute *a,
+static void pmbus_attr_init(sensor_device_attribute_no_const *a,
 			    const char *name,
 			    umode_t mode,
 			    ssize_t (*show)(struct device *dev,
@@ -863,7 +863,7 @@ static int pmbus_add_boolean(struct pmbus_data *data,
 			     u16 reg, u8 mask)
 {
 	struct pmbus_boolean *boolean;
-	struct sensor_device_attribute *a;
+	sensor_device_attribute_no_const *a;
 
 	boolean = devm_kzalloc(data->dev, sizeof(*boolean), GFP_KERNEL);
 	if (!boolean)
@@ -888,7 +888,7 @@ static struct pmbus_sensor *pmbus_add_sensor(struct pmbus_data *data,
 					     bool update, bool readonly)
 {
 	struct pmbus_sensor *sensor;
-	struct device_attribute *a;
+	device_attribute_no_const *a;
 
 	sensor = devm_kzalloc(data->dev, sizeof(*sensor), GFP_KERNEL);
 	if (!sensor)
@@ -919,7 +919,7 @@ static int pmbus_add_label(struct pmbus_data *data,
 			   const char *lstring, int index)
 {
 	struct pmbus_label *label;
-	struct device_attribute *a;
+	device_attribute_no_const *a;
 
 	label = devm_kzalloc(data->dev, sizeof(*label), GFP_KERNEL);
 	if (!label)
diff --git a/drivers/hwmon/sht15.c b/drivers/hwmon/sht15.c
index a2fdbb7..e749a3c 100644
--- a/drivers/hwmon/sht15.c
+++ b/drivers/hwmon/sht15.c
@@ -170,7 +170,7 @@ struct sht15_data {
 	int				supply_uv;
 	bool				supply_uv_valid;
 	struct work_struct		update_supply_work;
-	atomic_t			interrupt_handled;
+	atomic_unchecked_t		interrupt_handled;
 };
 
 /**
@@ -530,13 +530,13 @@ static int sht15_measurement(struct sht15_data *data,
 	ret = gpio_direction_input(data->pdata->gpio_data);
 	if (ret)
 		return ret;
-	atomic_set(&data->interrupt_handled, 0);
+	atomic_set_unchecked(&data->interrupt_handled, 0);
 
 	enable_irq(gpio_to_irq(data->pdata->gpio_data));
 	if (gpio_get_value(data->pdata->gpio_data) == 0) {
 		disable_irq_nosync(gpio_to_irq(data->pdata->gpio_data));
 		/* Only relevant if the interrupt hasn't occurred. */
-		if (!atomic_read(&data->interrupt_handled))
+		if (!atomic_read_unchecked(&data->interrupt_handled))
 			schedule_work(&data->read_work);
 	}
 	ret = wait_event_timeout(data->wait_queue,
@@ -808,7 +808,7 @@ static irqreturn_t sht15_interrupt_fired(int irq, void *d)
 
 	/* First disable the interrupt */
 	disable_irq_nosync(irq);
-	atomic_inc(&data->interrupt_handled);
+	atomic_inc_unchecked(&data->interrupt_handled);
 	/* Then schedule a reading work struct */
 	if (data->state != SHT15_READING_NOTHING)
 		schedule_work(&data->read_work);
@@ -830,11 +830,11 @@ static void sht15_bh_read_data(struct work_struct *work_s)
 		 * If not, then start the interrupt again - care here as could
 		 * have gone low in meantime so verify it hasn't!
 		 */
-		atomic_set(&data->interrupt_handled, 0);
+		atomic_set_unchecked(&data->interrupt_handled, 0);
 		enable_irq(gpio_to_irq(data->pdata->gpio_data));
 		/* If still not occurred or another handler was scheduled */
 		if (gpio_get_value(data->pdata->gpio_data)
-		    || atomic_read(&data->interrupt_handled))
+		    || atomic_read_unchecked(&data->interrupt_handled))
 			return;
 	}
 
diff --git a/drivers/hwmon/via-cputemp.c b/drivers/hwmon/via-cputemp.c
index ac91c07..8e69663 100644
--- a/drivers/hwmon/via-cputemp.c
+++ b/drivers/hwmon/via-cputemp.c
@@ -295,7 +295,7 @@ static int via_cputemp_cpu_callback(struct notifier_block *nfb,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block via_cputemp_cpu_notifier __refdata = {
+static struct notifier_block via_cputemp_cpu_notifier = {
 	.notifier_call = via_cputemp_cpu_callback,
 };
 
diff --git a/drivers/i2c/busses/i2c-amd756-s4882.c b/drivers/i2c/busses/i2c-amd756-s4882.c
index 65e3240..e6c511d 100644
--- a/drivers/i2c/busses/i2c-amd756-s4882.c
+++ b/drivers/i2c/busses/i2c-amd756-s4882.c
@@ -39,7 +39,7 @@
 extern struct i2c_adapter amd756_smbus;
 
 static struct i2c_adapter *s4882_adapter;
-static struct i2c_algorithm *s4882_algo;
+static i2c_algorithm_no_const *s4882_algo;
 
 /* Wrapper access functions for multiplexed SMBus */
 static DEFINE_MUTEX(amd756_lock);
diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c
index 7368be0..00f2259 100644
--- a/drivers/i2c/busses/i2c-designware-pcidrv.c
+++ b/drivers/i2c/busses/i2c-designware-pcidrv.c
@@ -61,7 +61,7 @@ struct dw_scl_sda_cfg {
 };
 
 struct dw_pci_controller {
-	u32 bus_num;
+	int bus_num;
 	u32 bus_cfg;
 	u32 tx_fifo_depth;
 	u32 rx_fifo_depth;
diff --git a/drivers/i2c/busses/i2c-nforce2-s4985.c b/drivers/i2c/busses/i2c-nforce2-s4985.c
index 88eda09..cf40434 100644
--- a/drivers/i2c/busses/i2c-nforce2-s4985.c
+++ b/drivers/i2c/busses/i2c-nforce2-s4985.c
@@ -37,7 +37,7 @@
 extern struct i2c_adapter *nforce2_smbus;
 
 static struct i2c_adapter *s4985_adapter;
-static struct i2c_algorithm *s4985_algo;
+static i2c_algorithm_no_const *s4985_algo;
 
 /* Wrapper access functions for multiplexed SMBus */
 static DEFINE_MUTEX(nforce2_lock);
diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c
index 0b1108d..8f253a0 100644
--- a/drivers/i2c/i2c-dev.c
+++ b/drivers/i2c/i2c-dev.c
@@ -272,7 +272,7 @@ static noinline int i2cdev_ioctl_rdwr(struct i2c_client *client,
 			break;
 		}
 
-		data_ptrs[i] = (u8 __user *)rdwr_pa[i].buf;
+		data_ptrs[i] = (u8 __force_user *)rdwr_pa[i].buf;
 		rdwr_pa[i].buf = memdup_user(data_ptrs[i], rdwr_pa[i].len);
 		if (IS_ERR(rdwr_pa[i].buf)) {
 			res = PTR_ERR(rdwr_pa[i].buf);
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index ef907fd..1b61cf2 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -768,7 +768,7 @@ static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq)
 		alignment = queue_dma_alignment(q) | q->dma_pad_mask;
 		if ((unsigned long)buf & alignment
 		    || blk_rq_bytes(rq) & q->dma_pad_mask
-		    || object_is_on_stack(buf))
+		    || object_starts_on_stack(buf))
 			drive->dma = 0;
 	}
 }
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index 37a8a90..4724cbd 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -178,7 +178,7 @@ static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
  * 1073741822 == 549756 MB or 48bit addressing fake drive
  */
 
-static ide_startstop_t ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
+static ide_startstop_t __intentional_overflow(-1) ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
 				      sector_t block)
 {
 	ide_hwif_t *hwif = drive->hwif;
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index d127ace..6ee866f 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -244,7 +244,7 @@ struct chs_geom {
 static unsigned int ide_disks;
 static struct chs_geom ide_disks_chs[MAX_HWIFS * MAX_DRIVES];
 
-static int ide_set_disk_chs(const char *str, struct kernel_param *kp)
+static int ide_set_disk_chs(const char *str, const struct kernel_param *kp)
 {
 	unsigned int a, b, c = 0, h = 0, s = 0, i, j = 1;
 
@@ -328,7 +328,7 @@ static void ide_dev_apply_params(ide_drive_t *drive, u8 unit)
 
 static unsigned int ide_ignore_cable;
 
-static int ide_set_ignore_cable(const char *s, struct kernel_param *kp)
+static int ide_set_ignore_cable(const char *s, const struct kernel_param *kp)
 {
 	int i, j = 1;
 
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index c6935de..1ecb47f 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -1114,8 +1114,10 @@ static void sklh_idle_state_table_update(void)
 			return;
 	}
 
-	skl_cstates[5].disabled = 1;	/* C8-SKL */
-	skl_cstates[6].disabled = 1;	/* C9-SKL */
+	pax_open_kernel();
+	const_cast(skl_cstates[5].disabled) = 1;	/* C8-SKL */
+	const_cast(skl_cstates[6].disabled) = 1;	/* C9-SKL */
+	pax_close_kernel();
 }
 /*
  * intel_idle_state_table_update()
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 70cb7eb..f2ee8de 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -604,7 +604,7 @@ static ssize_t iio_write_channel_info(struct device *dev,
 }
 
 static
-int __iio_device_attr_init(struct device_attribute *dev_attr,
+int __iio_device_attr_init(device_attribute_no_const *dev_attr,
 			   const char *postfix,
 			   struct iio_chan_spec const *chan,
 			   ssize_t (*readfunc)(struct device *dev,
diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c
index 0e931a9..f7cba63 100644
--- a/drivers/iio/magnetometer/ak8975.c
+++ b/drivers/iio/magnetometer/ak8975.c
@@ -776,7 +776,7 @@ static int ak8975_probe(struct i2c_client *client,
 		name = id->name;
 	} else if (ACPI_HANDLE(&client->dev))
 		name = ak8975_match_acpi_device(&client->dev, &chipset);
-	else
+	if (!name)
 		return -ENOSYS;
 
 	if (chipset >= AK_MAX_TYPE) {
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index 1d92e09..215593e 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -115,7 +115,7 @@ static char const counter_group_names[CM_COUNTER_GROUPS]
 
 struct cm_counter_group {
 	struct kobject obj;
-	atomic_long_t counter[CM_ATTR_COUNT];
+	atomic_long_unchecked_t counter[CM_ATTR_COUNT];
 };
 
 struct cm_counter_attribute {
@@ -1432,7 +1432,7 @@ static void cm_format_mra(struct cm_mra_msg *mra_msg,
 static void cm_format_rej(struct cm_rej_msg *rej_msg,
 			  struct cm_id_private *cm_id_priv,
 			  enum ib_cm_rej_reason reason,
-			  void *ari,
+			  const void *ari,
 			  u8 ari_length,
 			  const void *private_data,
 			  u8 private_data_len)
@@ -1476,7 +1476,7 @@ static void cm_dup_req_handler(struct cm_work *work,
 	struct ib_mad_send_buf *msg = NULL;
 	int ret;
 
-	atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
+	atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
 			counter[CM_REQ_COUNTER]);
 
 	/* Quick state check to discard duplicate REQs. */
@@ -1884,7 +1884,7 @@ static void cm_dup_rep_handler(struct cm_work *work)
 	if (!cm_id_priv)
 		return;
 
-	atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
+	atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
 			counter[CM_REP_COUNTER]);
 	ret = cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg);
 	if (ret)
@@ -2051,7 +2051,7 @@ static int cm_rtu_handler(struct cm_work *work)
 	if (cm_id_priv->id.state != IB_CM_REP_SENT &&
 	    cm_id_priv->id.state != IB_CM_MRA_REP_RCVD) {
 		spin_unlock_irq(&cm_id_priv->lock);
-		atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
+		atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
 				counter[CM_RTU_COUNTER]);
 		goto out;
 	}
@@ -2234,7 +2234,7 @@ static int cm_dreq_handler(struct cm_work *work)
 	cm_id_priv = cm_acquire_id(dreq_msg->remote_comm_id,
 				   dreq_msg->local_comm_id);
 	if (!cm_id_priv) {
-		atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
+		atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
 				counter[CM_DREQ_COUNTER]);
 		cm_issue_drep(work->port, work->mad_recv_wc);
 		return -EINVAL;
@@ -2259,7 +2259,7 @@ static int cm_dreq_handler(struct cm_work *work)
 	case IB_CM_MRA_REP_RCVD:
 		break;
 	case IB_CM_TIMEWAIT:
-		atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
+		atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
 				counter[CM_DREQ_COUNTER]);
 		if (cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg))
 			goto unlock;
@@ -2273,7 +2273,7 @@ static int cm_dreq_handler(struct cm_work *work)
 			cm_free_msg(msg);
 		goto deref;
 	case IB_CM_DREQ_RCVD:
-		atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
+		atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
 				counter[CM_DREQ_COUNTER]);
 		goto unlock;
 	default:
@@ -2336,12 +2336,13 @@ out:
 }
 
 int ib_send_cm_rej(struct ib_cm_id *cm_id,
-		   enum ib_cm_rej_reason reason,
-		   void *ari,
+		   int _reason,
+		   const void *ari,
 		   u8 ari_length,
 		   const void *private_data,
 		   u8 private_data_len)
 {
+	enum ib_cm_rej_reason reason = _reason;
 	struct cm_id_private *cm_id_priv;
 	struct ib_mad_send_buf *msg;
 	unsigned long flags;
@@ -2640,7 +2641,7 @@ static int cm_mra_handler(struct cm_work *work)
 		    ib_modify_mad(cm_id_priv->av.port->mad_agent,
 				  cm_id_priv->msg, timeout)) {
 			if (cm_id_priv->id.lap_state == IB_CM_MRA_LAP_RCVD)
-				atomic_long_inc(&work->port->
+				atomic_long_inc_unchecked(&work->port->
 						counter_group[CM_RECV_DUPLICATES].
 						counter[CM_MRA_COUNTER]);
 			goto out;
@@ -2649,7 +2650,7 @@ static int cm_mra_handler(struct cm_work *work)
 		break;
 	case IB_CM_MRA_REQ_RCVD:
 	case IB_CM_MRA_REP_RCVD:
-		atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
+		atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
 				counter[CM_MRA_COUNTER]);
 		/* fall through */
 	default:
@@ -2811,7 +2812,7 @@ static int cm_lap_handler(struct cm_work *work)
 	case IB_CM_LAP_IDLE:
 		break;
 	case IB_CM_MRA_LAP_SENT:
-		atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
+		atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
 				counter[CM_LAP_COUNTER]);
 		if (cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg))
 			goto unlock;
@@ -2827,7 +2828,7 @@ static int cm_lap_handler(struct cm_work *work)
 			cm_free_msg(msg);
 		goto deref;
 	case IB_CM_LAP_RCVD:
-		atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
+		atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
 				counter[CM_LAP_COUNTER]);
 		goto unlock;
 	default:
@@ -2859,7 +2860,7 @@ deref:	cm_deref_id(cm_id_priv);
 static void cm_format_apr(struct cm_apr_msg *apr_msg,
 			  struct cm_id_private *cm_id_priv,
 			  enum ib_cm_apr_status status,
-			  void *info,
+			  const void *info,
 			  u8 info_length,
 			  const void *private_data,
 			  u8 private_data_len)
@@ -2879,12 +2880,13 @@ static void cm_format_apr(struct cm_apr_msg *apr_msg,
 }
 
 int ib_send_cm_apr(struct ib_cm_id *cm_id,
-		   enum ib_cm_apr_status status,
-		   void *info,
+		   int _status,
+		   const void *info,
 		   u8 info_length,
 		   const void *private_data,
 		   u8 private_data_len)
 {
+	enum ib_cm_apr_status status = _status;
 	struct cm_id_private *cm_id_priv;
 	struct ib_mad_send_buf *msg;
 	unsigned long flags;
@@ -3113,7 +3115,7 @@ static int cm_sidr_req_handler(struct cm_work *work)
 	cur_cm_id_priv = cm_insert_remote_sidr(cm_id_priv);
 	if (cur_cm_id_priv) {
 		spin_unlock_irq(&cm.lock);
-		atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
+		atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
 				counter[CM_SIDR_REQ_COUNTER]);
 		goto out; /* Duplicate message. */
 	}
@@ -3327,10 +3329,10 @@ static void cm_send_handler(struct ib_mad_agent *mad_agent,
 	if (!msg->context[0] && (attr_index != CM_REJ_COUNTER))
 		msg->retries = 1;
 
-	atomic_long_add(1 + msg->retries,
+	atomic_long_add_unchecked(1 + msg->retries,
 			&port->counter_group[CM_XMIT].counter[attr_index]);
 	if (msg->retries)
-		atomic_long_add(msg->retries,
+		atomic_long_add_unchecked(msg->retries,
 				&port->counter_group[CM_XMIT_RETRIES].
 				counter[attr_index]);
 
@@ -3557,7 +3559,7 @@ static void cm_recv_handler(struct ib_mad_agent *mad_agent,
 	}
 
 	attr_id = be16_to_cpu(mad_recv_wc->recv_buf.mad->mad_hdr.attr_id);
-	atomic_long_inc(&port->counter_group[CM_RECV].
+	atomic_long_inc_unchecked(&port->counter_group[CM_RECV].
 			counter[attr_id - CM_ATTR_ID_OFFSET]);
 
 	work = kmalloc(sizeof *work + sizeof(struct ib_sa_path_rec) * paths,
@@ -3764,7 +3766,7 @@ static ssize_t cm_show_counter(struct kobject *obj, struct attribute *attr,
 	cm_attr = container_of(attr, struct cm_counter_attribute, attr);
 
 	return sprintf(buf, "%ld\n",
-		       atomic_long_read(&group->counter[cm_attr->index]));
+		       atomic_long_read_unchecked(&group->counter[cm_attr->index]));
 }
 
 static const struct sysfs_ops cm_counter_ops = {
diff --git a/drivers/infiniband/core/fmr_pool.c b/drivers/infiniband/core/fmr_pool.c
index cdbb1f1..7ed4277 100644
--- a/drivers/infiniband/core/fmr_pool.c
+++ b/drivers/infiniband/core/fmr_pool.c
@@ -98,8 +98,8 @@ struct ib_fmr_pool {
 
 	struct task_struct       *thread;
 
-	atomic_t                  req_ser;
-	atomic_t                  flush_ser;
+	atomic_unchecked_t        req_ser;
+	atomic_unchecked_t        flush_ser;
 
 	wait_queue_head_t         force_wait;
 };
@@ -179,10 +179,10 @@ static int ib_fmr_cleanup_thread(void *pool_ptr)
 	struct ib_fmr_pool *pool = pool_ptr;
 
 	do {
-		if (atomic_read(&pool->flush_ser) - atomic_read(&pool->req_ser) < 0) {
+		if (atomic_read_unchecked(&pool->flush_ser) - atomic_read_unchecked(&pool->req_ser) < 0) {
 			ib_fmr_batch_release(pool);
 
-			atomic_inc(&pool->flush_ser);
+			atomic_inc_unchecked(&pool->flush_ser);
 			wake_up_interruptible(&pool->force_wait);
 
 			if (pool->flush_function)
@@ -190,7 +190,7 @@ static int ib_fmr_cleanup_thread(void *pool_ptr)
 		}
 
 		set_current_state(TASK_INTERRUPTIBLE);
-		if (atomic_read(&pool->flush_ser) - atomic_read(&pool->req_ser) >= 0 &&
+		if (atomic_read_unchecked(&pool->flush_ser) - atomic_read_unchecked(&pool->req_ser) >= 0 &&
 		    !kthread_should_stop())
 			schedule();
 		__set_current_state(TASK_RUNNING);
@@ -262,8 +262,8 @@ struct ib_fmr_pool *ib_create_fmr_pool(struct ib_pd             *pd,
 	pool->dirty_watermark = params->dirty_watermark;
 	pool->dirty_len       = 0;
 	spin_lock_init(&pool->pool_lock);
-	atomic_set(&pool->req_ser,   0);
-	atomic_set(&pool->flush_ser, 0);
+	atomic_set_unchecked(&pool->req_ser,   0);
+	atomic_set_unchecked(&pool->flush_ser, 0);
 	init_waitqueue_head(&pool->force_wait);
 
 	pool->thread = kthread_run(ib_fmr_cleanup_thread,
@@ -388,11 +388,11 @@ int ib_flush_fmr_pool(struct ib_fmr_pool *pool)
 	}
 	spin_unlock_irq(&pool->pool_lock);
 
-	serial = atomic_inc_return(&pool->req_ser);
+	serial = atomic_inc_return_unchecked(&pool->req_ser);
 	wake_up_process(pool->thread);
 
 	if (wait_event_interruptible(pool->force_wait,
-				     atomic_read(&pool->flush_ser) - serial >= 0))
+				     atomic_read_unchecked(&pool->flush_ser) - serial >= 0))
 		return -EINTR;
 
 	return 0;
@@ -502,7 +502,7 @@ int ib_fmr_pool_unmap(struct ib_pool_fmr *fmr)
 		} else {
 			list_add_tail(&fmr->list, &pool->dirty_list);
 			if (++pool->dirty_len >= pool->dirty_watermark) {
-				atomic_inc(&pool->req_ser);
+				atomic_inc_unchecked(&pool->req_ser);
 				wake_up_process(pool->thread);
 			}
 		}
diff --git a/drivers/infiniband/core/netlink.c b/drivers/infiniband/core/netlink.c
index d47df93..93e4cfd 100644
--- a/drivers/infiniband/core/netlink.c
+++ b/drivers/infiniband/core/netlink.c
@@ -177,11 +177,10 @@ static int ibnl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 			}
 
 			{
-				struct netlink_dump_control c = {
+				netlink_dump_control_no_const c = {
 					.dump = client->cb_table[op].dump,
-					.module = client->cb_table[op].module,
 				};
-				return netlink_dump_start(nls, skb, nlh, &c);
+				return __netlink_dump_start(nls, skb, nlh, &c, NULL, client->cb_table[op].module);
 			}
 		}
 	}
diff --git a/drivers/infiniband/core/ucm.c b/drivers/infiniband/core/ucm.c
index 7713ef0..0bb2981 100644
--- a/drivers/infiniband/core/ucm.c
+++ b/drivers/infiniband/core/ucm.c
@@ -920,14 +920,14 @@ static ssize_t ib_ucm_send_rej(struct ib_ucm_file *file,
 			       const char __user *inbuf,
 			       int in_len, int out_len)
 {
-	return ib_ucm_send_info(file, inbuf, in_len, (void *)ib_send_cm_rej);
+	return ib_ucm_send_info(file, inbuf, in_len, ib_send_cm_rej);
 }
 
 static ssize_t ib_ucm_send_apr(struct ib_ucm_file *file,
 			       const char __user *inbuf,
 			       int in_len, int out_len)
 {
-	return ib_ucm_send_info(file, inbuf, in_len, (void *)ib_send_cm_apr);
+	return ib_ucm_send_info(file, inbuf, in_len, ib_send_cm_apr);
 }
 
 static ssize_t ib_ucm_send_mra(struct ib_ucm_file *file,
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 6fdc7ecd..ae148f7 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -949,6 +949,9 @@ ssize_t ib_uverbs_reg_mr(struct ib_uverbs_file *file,
 	if (copy_from_user(&cmd, buf, sizeof cmd))
 		return -EFAULT;
 
+	if (!access_ok_noprefault(VERIFY_READ, cmd.start, cmd.length))
+		return -EFAULT;
+
 	INIT_UDATA(&udata, buf + sizeof cmd,
 		   (unsigned long) cmd.response + sizeof resp,
 		   in_len - sizeof cmd, out_len - sizeof resp);
diff --git a/drivers/infiniband/hw/cxgb4/device.c b/drivers/infiniband/hw/cxgb4/device.c
index ae2e8b2..d5dcc7d 100644
--- a/drivers/infiniband/hw/cxgb4/device.c
+++ b/drivers/infiniband/hw/cxgb4/device.c
@@ -111,7 +111,7 @@ void c4iw_log_wr_stats(struct t4_wq *wq, struct t4_cqe *cqe)
 	if (!wq->rdev->wr_log)
 		return;
 
-	idx = (atomic_inc_return(&wq->rdev->wr_log_idx) - 1) &
+	idx = (atomic_inc_return_unchecked(&wq->rdev->wr_log_idx) - 1) &
 		(wq->rdev->wr_log_size - 1);
 	le.poll_sge_ts = cxgb4_read_sge_timestamp(wq->rdev->lldi.ports[0]);
 	getnstimeofday(&le.poll_host_ts);
@@ -143,7 +143,7 @@ static int wr_log_show(struct seq_file *seq, void *v)
 
 #define ts2ns(ts) div64_u64((ts) * dev->rdev.lldi.cclk_ps, 1000)
 
-	idx = atomic_read(&dev->rdev.wr_log_idx) &
+	idx = atomic_read_unchecked(&dev->rdev.wr_log_idx) &
 		(dev->rdev.wr_log_size - 1);
 	end = idx - 1;
 	if (end < 0)
@@ -840,7 +840,7 @@ static int c4iw_rdev_open(struct c4iw_rdev *rdev)
 				       sizeof(*rdev->wr_log), GFP_KERNEL);
 		if (rdev->wr_log) {
 			rdev->wr_log_size = 1 << c4iw_wr_log_size_order;
-			atomic_set(&rdev->wr_log_idx, 0);
+			atomic_set_unchecked(&rdev->wr_log_idx, 0);
 		} else {
 			pr_err(MOD "error allocating wr_log. Logging disabled\n");
 		}
diff --git a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
index df43f87..e08169c 100644
--- a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
+++ b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
@@ -180,7 +180,7 @@ struct c4iw_rdev {
 	struct c4iw_stats stats;
 	struct c4iw_hw_queue hw_queue;
 	struct t4_dev_status_page *status_page;
-	atomic_t wr_log_idx;
+	atomic_unchecked_t wr_log_idx;
 	struct wr_log_entry *wr_log;
 	int wr_log_size;
 };
diff --git a/drivers/infiniband/hw/cxgb4/mem.c b/drivers/infiniband/hw/cxgb4/mem.c
index 008be07..a73412de 100644
--- a/drivers/infiniband/hw/cxgb4/mem.c
+++ b/drivers/infiniband/hw/cxgb4/mem.c
@@ -257,7 +257,7 @@ static int write_tpt_entry(struct c4iw_rdev *rdev, u32 reset_tpt_entry,
 	int err;
 	struct fw_ri_tpte tpt;
 	u32 stag_idx;
-	static atomic_t key;
+	static atomic_unchecked_t key;
 
 	if (c4iw_fatal_error(rdev))
 		return -EIO;
@@ -278,7 +278,7 @@ static int write_tpt_entry(struct c4iw_rdev *rdev, u32 reset_tpt_entry,
 		if (rdev->stats.stag.cur > rdev->stats.stag.max)
 			rdev->stats.stag.max = rdev->stats.stag.cur;
 		mutex_unlock(&rdev->stats.lock);
-		*stag = (stag_idx << 8) | (atomic_inc_return(&key) & 0xff);
+		*stag = (stag_idx << 8) | (atomic_inc_return_unchecked(&key) & 0xff);
 	}
 	PDBG("%s stag_state 0x%0x type 0x%0x pdid 0x%0x, stag_idx 0x%x\n",
 	     __func__, stag_state, type, pdid, stag_idx);
diff --git a/drivers/infiniband/hw/i40iw/i40iw_ctrl.c b/drivers/infiniband/hw/i40iw/i40iw_ctrl.c
index f05802b..d0827d4 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_ctrl.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_ctrl.c
@@ -4516,118 +4516,116 @@ static void i40iw_hw_stat_refresh_all(struct i40iw_dev_pestat *devstat)
 }
 
 static struct i40iw_cqp_ops iw_cqp_ops = {
-	i40iw_sc_cqp_init,
-	i40iw_sc_cqp_create,
-	i40iw_sc_cqp_post_sq,
-	i40iw_sc_cqp_get_next_send_wqe,
-	i40iw_sc_cqp_destroy,
-	i40iw_sc_poll_for_cqp_op_done
+	.cqp_init = i40iw_sc_cqp_init,
+	.cqp_create = i40iw_sc_cqp_create,
+	.cqp_post_sq = i40iw_sc_cqp_post_sq,
+	.cqp_get_next_send_wqe = i40iw_sc_cqp_get_next_send_wqe,
+	.cqp_destroy = i40iw_sc_cqp_destroy,
+	.poll_for_cqp_op_done = i40iw_sc_poll_for_cqp_op_done
 };
 
 static struct i40iw_ccq_ops iw_ccq_ops = {
-	i40iw_sc_ccq_init,
-	i40iw_sc_ccq_create,
-	i40iw_sc_ccq_destroy,
-	i40iw_sc_ccq_create_done,
-	i40iw_sc_ccq_get_cqe_info,
-	i40iw_sc_ccq_arm
+	.ccq_init = i40iw_sc_ccq_init,
+	.ccq_create = i40iw_sc_ccq_create,
+	.ccq_destroy = i40iw_sc_ccq_destroy,
+	.ccq_create_done = i40iw_sc_ccq_create_done,
+	.ccq_get_cqe_info = i40iw_sc_ccq_get_cqe_info,
+	.ccq_arm = i40iw_sc_ccq_arm
 };
 
 static struct i40iw_ceq_ops iw_ceq_ops = {
-	i40iw_sc_ceq_init,
-	i40iw_sc_ceq_create,
-	i40iw_sc_cceq_create_done,
-	i40iw_sc_cceq_destroy_done,
-	i40iw_sc_cceq_create,
-	i40iw_sc_ceq_destroy,
-	i40iw_sc_process_ceq
+	.ceq_init = i40iw_sc_ceq_init,
+	.ceq_create = i40iw_sc_ceq_create,
+	.cceq_create_done = i40iw_sc_cceq_create_done,
+	.cceq_destroy_done = i40iw_sc_cceq_destroy_done,
+	.cceq_create = i40iw_sc_cceq_create,
+	.ceq_destroy = i40iw_sc_ceq_destroy,
+	.process_ceq = i40iw_sc_process_ceq
 };
 
 static struct i40iw_aeq_ops iw_aeq_ops = {
-	i40iw_sc_aeq_init,
-	i40iw_sc_aeq_create,
-	i40iw_sc_aeq_destroy,
-	i40iw_sc_get_next_aeqe,
-	i40iw_sc_repost_aeq_entries,
-	i40iw_sc_aeq_create_done,
-	i40iw_sc_aeq_destroy_done
+	.aeq_init = i40iw_sc_aeq_init,
+	.aeq_create = i40iw_sc_aeq_create,
+	.aeq_destroy = i40iw_sc_aeq_destroy,
+	.get_next_aeqe = i40iw_sc_get_next_aeqe,
+	.repost_aeq_entries = i40iw_sc_repost_aeq_entries,
+	.aeq_create_done = i40iw_sc_aeq_create_done,
+	.aeq_destroy_done = i40iw_sc_aeq_destroy_done
 };
 
 /* iwarp pd ops */
 static struct i40iw_pd_ops iw_pd_ops = {
-	i40iw_sc_pd_init,
+	.pd_init = i40iw_sc_pd_init,
 };
 
 static struct i40iw_priv_qp_ops iw_priv_qp_ops = {
-	i40iw_sc_qp_init,
-	i40iw_sc_qp_create,
-	i40iw_sc_qp_modify,
-	i40iw_sc_qp_destroy,
-	i40iw_sc_qp_flush_wqes,
-	i40iw_sc_qp_upload_context,
-	i40iw_sc_qp_setctx,
-	i40iw_sc_send_lsmm,
-	i40iw_sc_send_lsmm_nostag,
-	i40iw_sc_send_rtt,
-	i40iw_sc_post_wqe0,
+	.qp_init = i40iw_sc_qp_init,
+	.qp_create = i40iw_sc_qp_create,
+	.qp_modify = i40iw_sc_qp_modify,
+	.qp_destroy = i40iw_sc_qp_destroy,
+	.qp_flush_wqes = i40iw_sc_qp_flush_wqes,
+	.qp_upload_context = i40iw_sc_qp_upload_context,
+	.qp_setctx = i40iw_sc_qp_setctx,
+	.qp_send_lsmm = i40iw_sc_send_lsmm,
+	.qp_send_lsmm_nostag = i40iw_sc_send_lsmm_nostag,
+	.qp_send_rtt = i40iw_sc_send_rtt,
+	.qp_post_wqe0 = i40iw_sc_post_wqe0,
 };
 
 static struct i40iw_priv_cq_ops iw_priv_cq_ops = {
-	i40iw_sc_cq_init,
-	i40iw_sc_cq_create,
-	i40iw_sc_cq_destroy,
-	i40iw_sc_cq_modify,
+	.cq_init = i40iw_sc_cq_init,
+	.cq_create = i40iw_sc_cq_create,
+	.cq_destroy = i40iw_sc_cq_destroy,
+	.cq_modify = i40iw_sc_cq_modify,
 };
 
 static struct i40iw_mr_ops iw_mr_ops = {
-	i40iw_sc_alloc_stag,
-	i40iw_sc_mr_reg_non_shared,
-	i40iw_sc_mr_reg_shared,
-	i40iw_sc_dealloc_stag,
-	i40iw_sc_query_stag,
-	i40iw_sc_mw_alloc
+	.alloc_stag = i40iw_sc_alloc_stag,
+	.mr_reg_non_shared = i40iw_sc_mr_reg_non_shared,
+	.mr_reg_shared = i40iw_sc_mr_reg_shared,
+	.dealloc_stag = i40iw_sc_dealloc_stag,
+	.query_stag = i40iw_sc_query_stag,
+	.mw_alloc = i40iw_sc_mw_alloc
 };
 
 static struct i40iw_cqp_misc_ops iw_cqp_misc_ops = {
-	i40iw_sc_manage_push_page,
-	i40iw_sc_manage_hmc_pm_func_table,
-	i40iw_sc_set_hmc_resource_profile,
-	i40iw_sc_commit_fpm_values,
-	i40iw_sc_query_fpm_values,
-	i40iw_sc_static_hmc_pages_allocated,
-	i40iw_sc_add_arp_cache_entry,
-	i40iw_sc_del_arp_cache_entry,
-	i40iw_sc_query_arp_cache_entry,
-	i40iw_sc_manage_apbvt_entry,
-	i40iw_sc_manage_qhash_table_entry,
-	i40iw_sc_alloc_local_mac_ipaddr_entry,
-	i40iw_sc_add_local_mac_ipaddr_entry,
-	i40iw_sc_del_local_mac_ipaddr_entry,
-	i40iw_sc_cqp_nop,
-	i40iw_sc_commit_fpm_values_done,
-	i40iw_sc_query_fpm_values_done,
-	i40iw_sc_manage_hmc_pm_func_table_done,
-	i40iw_sc_suspend_qp,
-	i40iw_sc_resume_qp
+	.manage_push_page = i40iw_sc_manage_push_page,
+	.manage_hmc_pm_func_table = i40iw_sc_manage_hmc_pm_func_table,
+	.set_hmc_resource_profile = i40iw_sc_set_hmc_resource_profile,
+	.commit_fpm_values = i40iw_sc_commit_fpm_values,
+	.query_fpm_values = i40iw_sc_query_fpm_values,
+	.static_hmc_pages_allocated = i40iw_sc_static_hmc_pages_allocated,
+	.add_arp_cache_entry = i40iw_sc_add_arp_cache_entry,
+	.del_arp_cache_entry = i40iw_sc_del_arp_cache_entry,
+	.query_arp_cache_entry = i40iw_sc_query_arp_cache_entry,
+	.manage_apbvt_entry = i40iw_sc_manage_apbvt_entry,
+	.manage_qhash_table_entry = i40iw_sc_manage_qhash_table_entry,
+	.alloc_local_mac_ipaddr_table_entry = i40iw_sc_alloc_local_mac_ipaddr_entry,
+	.add_local_mac_ipaddr_entry = i40iw_sc_add_local_mac_ipaddr_entry,
+	.del_local_mac_ipaddr_entry = i40iw_sc_del_local_mac_ipaddr_entry,
+	.cqp_nop = i40iw_sc_cqp_nop,
+	.commit_fpm_values_done = i40iw_sc_commit_fpm_values_done,
+	.query_fpm_values_done = i40iw_sc_query_fpm_values_done,
+	.manage_hmc_pm_func_table_done = i40iw_sc_manage_hmc_pm_func_table_done,
+	.update_suspend_qp = i40iw_sc_suspend_qp,
+	.update_resume_qp = i40iw_sc_resume_qp
 };
 
 static struct i40iw_hmc_ops iw_hmc_ops = {
-	i40iw_sc_init_iw_hmc,
-	i40iw_sc_parse_fpm_query_buf,
-	i40iw_sc_configure_iw_fpm,
-	i40iw_sc_parse_fpm_commit_buf,
-	i40iw_sc_create_hmc_obj,
-	i40iw_sc_del_hmc_obj,
-	NULL,
-	NULL
+	.init_iw_hmc = i40iw_sc_init_iw_hmc,
+	.parse_fpm_query_buf = i40iw_sc_parse_fpm_query_buf,
+	.configure_iw_fpm = i40iw_sc_configure_iw_fpm,
+	.parse_fpm_commit_buf = i40iw_sc_parse_fpm_commit_buf,
+	.create_hmc_object = i40iw_sc_create_hmc_obj,
+	.del_hmc_object = i40iw_sc_del_hmc_obj
 };
 
 static const struct i40iw_device_pestat_ops iw_device_pestat_ops = {
-	i40iw_hw_stat_init,
-	i40iw_hw_stat_read_32,
-	i40iw_hw_stat_read_64,
-	i40iw_hw_stat_read_all,
-	i40iw_hw_stat_refresh_all
+	.iw_hw_stat_init = i40iw_hw_stat_init,
+	.iw_hw_stat_read_32 = i40iw_hw_stat_read_32,
+	.iw_hw_stat_read_64 = i40iw_hw_stat_read_64,
+	.iw_hw_stat_read_all = i40iw_hw_stat_read_all,
+	.iw_hw_stat_refresh_all = i40iw_hw_stat_refresh_all
 };
 
 /**
diff --git a/drivers/infiniband/hw/i40iw/i40iw_uk.c b/drivers/infiniband/hw/i40iw/i40iw_uk.c
index f78c3dc..f09670e 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_uk.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_uk.c
@@ -919,29 +919,29 @@ enum i40iw_status_code i40iw_get_wqe_shift(u32 wqdepth, u8 sge, u8 *shift)
 }
 
 static struct i40iw_qp_uk_ops iw_qp_uk_ops = {
-	i40iw_qp_post_wr,
-	i40iw_qp_ring_push_db,
-	i40iw_rdma_write,
-	i40iw_rdma_read,
-	i40iw_send,
-	i40iw_inline_rdma_write,
-	i40iw_inline_send,
-	i40iw_stag_local_invalidate,
-	i40iw_mw_bind,
-	i40iw_post_receive,
-	i40iw_nop
+	.iw_qp_post_wr = i40iw_qp_post_wr,
+	.iw_qp_ring_push_db = i40iw_qp_ring_push_db,
+	.iw_rdma_write = i40iw_rdma_write,
+	.iw_rdma_read = i40iw_rdma_read,
+	.iw_send = i40iw_send,
+	.iw_inline_rdma_write = i40iw_inline_rdma_write,
+	.iw_inline_send = i40iw_inline_send,
+	.iw_stag_local_invalidate = i40iw_stag_local_invalidate,
+	.iw_mw_bind = i40iw_mw_bind,
+	.iw_post_receive = i40iw_post_receive,
+	.iw_post_nop = i40iw_nop
 };
 
 static struct i40iw_cq_ops iw_cq_ops = {
-	i40iw_cq_request_notification,
-	i40iw_cq_poll_completion,
-	i40iw_cq_post_entries,
-	i40iw_clean_cq
+	.iw_cq_request_notification = i40iw_cq_request_notification,
+	.iw_cq_poll_completion = i40iw_cq_poll_completion,
+	.iw_cq_post_entries = i40iw_cq_post_entries,
+	.iw_cq_clean = i40iw_clean_cq
 };
 
 static struct i40iw_device_uk_ops iw_device_uk_ops = {
-	i40iw_cq_uk_init,
-	i40iw_qp_uk_init,
+	.iwarp_cq_uk_init = i40iw_cq_uk_init,
+	.iwarp_qp_uk_init = i40iw_qp_uk_init,
 };
 
 /**
diff --git a/drivers/infiniband/hw/i40iw/i40iw_user.h b/drivers/infiniband/hw/i40iw/i40iw_user.h
index 5cd971b..01b798c 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_user.h
+++ b/drivers/infiniband/hw/i40iw/i40iw_user.h
@@ -341,7 +341,7 @@ struct i40iw_device_uk_ops {
 
 struct i40iw_dev_uk {
 	struct i40iw_device_uk_ops ops_uk;
-};
+} __no_const;
 
 struct i40iw_sq_uk_wr_trk_info {
 	u64 wrid;
diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c
index d68f506..00ff84a 100644
--- a/drivers/infiniband/hw/mlx4/mad.c
+++ b/drivers/infiniband/hw/mlx4/mad.c
@@ -99,7 +99,7 @@ __be64 mlx4_ib_gen_node_guid(void)
 
 __be64 mlx4_ib_get_new_demux_tid(struct mlx4_ib_demux_ctx *ctx)
 {
-	return cpu_to_be64(atomic_inc_return(&ctx->tid)) |
+	return cpu_to_be64(atomic_inc_return_unchecked(&ctx->tid)) |
 		cpu_to_be64(0xff00000000000000LL);
 }
 
diff --git a/drivers/infiniband/hw/mlx4/mcg.c b/drivers/infiniband/hw/mlx4/mcg.c
index 99451d8..a9f0747 100644
--- a/drivers/infiniband/hw/mlx4/mcg.c
+++ b/drivers/infiniband/hw/mlx4/mcg.c
@@ -1046,7 +1046,7 @@ int mlx4_ib_mcg_port_init(struct mlx4_ib_demux_ctx *ctx)
 {
 	char name[20];
 
-	atomic_set(&ctx->tid, 0);
+	atomic_set_unchecked(&ctx->tid, 0);
 	sprintf(name, "mlx4_ib_mcg%d", ctx->port);
 	ctx->mcg_wq = create_singlethread_workqueue(name);
 	if (!ctx->mcg_wq)
diff --git a/drivers/infiniband/hw/mlx4/mlx4_ib.h b/drivers/infiniband/hw/mlx4/mlx4_ib.h
index 1eca01c..ed165df 100644
--- a/drivers/infiniband/hw/mlx4/mlx4_ib.h
+++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h
@@ -457,7 +457,7 @@ struct mlx4_ib_demux_ctx {
 	struct list_head	mcg_mgid0_list;
 	struct workqueue_struct	*mcg_wq;
 	struct mlx4_ib_demux_pv_ctx **tun;
-	atomic_t tid;
+	atomic_unchecked_t tid;
 	int    flushing; /* flushing the work queue */
 };
 
diff --git a/drivers/infiniband/hw/mthca/mthca_cmd.c b/drivers/infiniband/hw/mthca/mthca_cmd.c
index c7f49bb..6a021bb 100644
--- a/drivers/infiniband/hw/mthca/mthca_cmd.c
+++ b/drivers/infiniband/hw/mthca/mthca_cmd.c
@@ -772,7 +772,7 @@ static void mthca_setup_cmd_doorbells(struct mthca_dev *dev, u64 base)
 	mthca_dbg(dev, "Mapped doorbell page for posting FW commands\n");
 }
 
-int mthca_QUERY_FW(struct mthca_dev *dev)
+int __intentional_overflow(-1) mthca_QUERY_FW(struct mthca_dev *dev)
 {
 	struct mthca_mailbox *mailbox;
 	u32 *outbox;
@@ -1612,7 +1612,7 @@ int mthca_HW2SW_MPT(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
 			     CMD_TIME_CLASS_B);
 }
 
-int mthca_WRITE_MTT(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
+int __intentional_overflow(-1) mthca_WRITE_MTT(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
 		    int num_mtt)
 {
 	return mthca_cmd(dev, mailbox->dma, num_mtt, 0, CMD_WRITE_MTT,
@@ -1634,7 +1634,7 @@ int mthca_MAP_EQ(struct mthca_dev *dev, u64 event_mask, int unmap,
 			 0, CMD_MAP_EQ, CMD_TIME_CLASS_B);
 }
 
-int mthca_SW2HW_EQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
+int __intentional_overflow(-1) mthca_SW2HW_EQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
 		   int eq_num)
 {
 	return mthca_cmd(dev, mailbox->dma, eq_num, 0, CMD_SW2HW_EQ,
@@ -1857,7 +1857,7 @@ int mthca_CONF_SPECIAL_QP(struct mthca_dev *dev, int type, u32 qpn)
 			 CMD_TIME_CLASS_B);
 }
 
-int mthca_MAD_IFC(struct mthca_dev *dev, int ignore_mkey, int ignore_bkey,
+int __intentional_overflow(-1) mthca_MAD_IFC(struct mthca_dev *dev, int ignore_mkey, int ignore_bkey,
 		  int port, const struct ib_wc *in_wc, const struct ib_grh *in_grh,
 		  const void *in_mad, void *response_mad)
 {
diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c
index ded76c1..0cf0a08 100644
--- a/drivers/infiniband/hw/mthca/mthca_main.c
+++ b/drivers/infiniband/hw/mthca/mthca_main.c
@@ -692,7 +692,7 @@ err_close:
 	return err;
 }
 
-static int mthca_setup_hca(struct mthca_dev *dev)
+static int __intentional_overflow(-1) mthca_setup_hca(struct mthca_dev *dev)
 {
 	int err;
 
diff --git a/drivers/infiniband/hw/mthca/mthca_mr.c b/drivers/infiniband/hw/mthca/mthca_mr.c
index ed9a989..6aa5dc2 100644
--- a/drivers/infiniband/hw/mthca/mthca_mr.c
+++ b/drivers/infiniband/hw/mthca/mthca_mr.c
@@ -81,7 +81,7 @@ struct mthca_mpt_entry {
  * through the bitmaps)
  */
 
-static u32 mthca_buddy_alloc(struct mthca_buddy *buddy, int order)
+static u32 __intentional_overflow(-1) mthca_buddy_alloc(struct mthca_buddy *buddy, int order)
 {
 	int o;
 	int m;
@@ -426,7 +426,7 @@ static inline u32 adjust_key(struct mthca_dev *dev, u32 key)
 		return key;
 }
 
-int mthca_mr_alloc(struct mthca_dev *dev, u32 pd, int buffer_size_shift,
+int __intentional_overflow(-1) mthca_mr_alloc(struct mthca_dev *dev, u32 pd, int buffer_size_shift,
 		   u64 iova, u64 total_size, u32 access, struct mthca_mr *mr)
 {
 	struct mthca_mailbox *mailbox;
@@ -516,7 +516,7 @@ int mthca_mr_alloc_notrans(struct mthca_dev *dev, u32 pd,
 	return mthca_mr_alloc(dev, pd, 12, 0, ~0ULL, access, mr);
 }
 
-int mthca_mr_alloc_phys(struct mthca_dev *dev, u32 pd,
+int __intentional_overflow(-1) mthca_mr_alloc_phys(struct mthca_dev *dev, u32 pd,
 			u64 *buffer_list, int buffer_size_shift,
 			int list_len, u64 iova, u64 total_size,
 			u32 access, struct mthca_mr *mr)
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index 9866c35..9c627c9 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -772,7 +772,7 @@ unlock:
 	return 0;
 }
 
-static int mthca_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
+static int __intentional_overflow(-1) mthca_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
 {
 	struct mthca_dev *dev = to_mdev(ibcq->device);
 	struct mthca_cq *cq = to_mcq(ibcq);
diff --git a/drivers/infiniband/hw/nes/nes.c b/drivers/infiniband/hw/nes/nes.c
index 35cbb17..d336a68 100644
--- a/drivers/infiniband/hw/nes/nes.c
+++ b/drivers/infiniband/hw/nes/nes.c
@@ -97,7 +97,7 @@ MODULE_PARM_DESC(limit_maxrdreqsz, "Limit max read request size to 256 Bytes");
 LIST_HEAD(nes_adapter_list);
 static LIST_HEAD(nes_dev_list);
 
-atomic_t qps_destroyed;
+atomic_unchecked_t qps_destroyed;
 
 static unsigned int ee_flsh_adapter;
 static unsigned int sysfs_nonidx_addr;
@@ -268,7 +268,7 @@ static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_r
 	struct nes_qp *nesqp = cqp_request->cqp_callback_pointer;
 	struct nes_adapter *nesadapter = nesdev->nesadapter;
 
-	atomic_inc(&qps_destroyed);
+	atomic_inc_unchecked(&qps_destroyed);
 
 	/* Free the control structures */
 
diff --git a/drivers/infiniband/hw/nes/nes.h b/drivers/infiniband/hw/nes/nes.h
index bd9d132..70d84f4 100644
--- a/drivers/infiniband/hw/nes/nes.h
+++ b/drivers/infiniband/hw/nes/nes.h
@@ -180,17 +180,17 @@ extern unsigned int nes_debug_level;
 extern unsigned int wqm_quanta;
 extern struct list_head nes_adapter_list;
 
-extern atomic_t cm_connects;
-extern atomic_t cm_accepts;
-extern atomic_t cm_disconnects;
-extern atomic_t cm_closes;
-extern atomic_t cm_connecteds;
-extern atomic_t cm_connect_reqs;
-extern atomic_t cm_rejects;
-extern atomic_t mod_qp_timouts;
-extern atomic_t qps_created;
-extern atomic_t qps_destroyed;
-extern atomic_t sw_qps_destroyed;
+extern atomic_unchecked_t cm_connects;
+extern atomic_unchecked_t cm_accepts;
+extern atomic_unchecked_t cm_disconnects;
+extern atomic_unchecked_t cm_closes;
+extern atomic_unchecked_t cm_connecteds;
+extern atomic_unchecked_t cm_connect_reqs;
+extern atomic_unchecked_t cm_rejects;
+extern atomic_unchecked_t mod_qp_timouts;
+extern atomic_unchecked_t qps_created;
+extern atomic_unchecked_t qps_destroyed;
+extern atomic_unchecked_t sw_qps_destroyed;
 extern u32 mh_detected;
 extern u32 mh_pauses_sent;
 extern u32 cm_packets_sent;
@@ -199,16 +199,16 @@ extern u32 cm_packets_created;
 extern u32 cm_packets_received;
 extern u32 cm_packets_dropped;
 extern u32 cm_packets_retrans;
-extern atomic_t cm_listens_created;
-extern atomic_t cm_listens_destroyed;
+extern atomic_unchecked_t cm_listens_created;
+extern atomic_unchecked_t cm_listens_destroyed;
 extern u32 cm_backlog_drops;
-extern atomic_t cm_loopbacks;
-extern atomic_t cm_nodes_created;
-extern atomic_t cm_nodes_destroyed;
-extern atomic_t cm_accel_dropped_pkts;
-extern atomic_t cm_resets_recvd;
-extern atomic_t pau_qps_created;
-extern atomic_t pau_qps_destroyed;
+extern atomic_unchecked_t cm_loopbacks;
+extern atomic_unchecked_t cm_nodes_created;
+extern atomic_unchecked_t cm_nodes_destroyed;
+extern atomic_unchecked_t cm_accel_dropped_pkts;
+extern atomic_unchecked_t cm_resets_recvd;
+extern atomic_unchecked_t pau_qps_created;
+extern atomic_unchecked_t pau_qps_destroyed;
 
 extern u32 int_mod_timer_init;
 extern u32 int_mod_cq_depth_256;
diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
index 7f0aa23..3c20939 100644
--- a/drivers/infiniband/hw/nes/nes_cm.c
+++ b/drivers/infiniband/hw/nes/nes_cm.c
@@ -69,14 +69,14 @@ u32 cm_packets_dropped;
 u32 cm_packets_retrans;
 u32 cm_packets_created;
 u32 cm_packets_received;
-atomic_t cm_listens_created;
-atomic_t cm_listens_destroyed;
+atomic_unchecked_t cm_listens_created;
+atomic_unchecked_t cm_listens_destroyed;
 u32 cm_backlog_drops;
-atomic_t cm_loopbacks;
-atomic_t cm_nodes_created;
-atomic_t cm_nodes_destroyed;
-atomic_t cm_accel_dropped_pkts;
-atomic_t cm_resets_recvd;
+atomic_unchecked_t cm_loopbacks;
+atomic_unchecked_t cm_nodes_created;
+atomic_unchecked_t cm_nodes_destroyed;
+atomic_unchecked_t cm_accel_dropped_pkts;
+atomic_unchecked_t cm_resets_recvd;
 
 static inline int mini_cm_accelerated(struct nes_cm_core *, struct nes_cm_node *);
 static struct nes_cm_listener *mini_cm_listen(struct nes_cm_core *, struct nes_vnic *, struct nes_cm_info *);
@@ -135,28 +135,28 @@ static void record_ird_ord(struct nes_cm_node *, u16, u16);
 /* instance of function pointers for client API */
 /* set address of this instance to cm_core->cm_ops at cm_core alloc */
 static const struct nes_cm_ops nes_cm_api = {
-	mini_cm_accelerated,
-	mini_cm_listen,
-	mini_cm_del_listen,
-	mini_cm_connect,
-	mini_cm_close,
-	mini_cm_accept,
-	mini_cm_reject,
-	mini_cm_recv_pkt,
-	mini_cm_dealloc_core,
-	mini_cm_get,
-	mini_cm_set
+	.accelerated = mini_cm_accelerated,
+	.listen = mini_cm_listen,
+	.stop_listener = mini_cm_del_listen,
+	.connect = mini_cm_connect,
+	.close = mini_cm_close,
+	.accept = mini_cm_accept,
+	.reject = mini_cm_reject,
+	.recv_pkt = mini_cm_recv_pkt,
+	.destroy_cm_core = mini_cm_dealloc_core,
+	.get = mini_cm_get,
+	.set = mini_cm_set
 };
 
 static struct nes_cm_core *g_cm_core;
 
-atomic_t cm_connects;
-atomic_t cm_accepts;
-atomic_t cm_disconnects;
-atomic_t cm_closes;
-atomic_t cm_connecteds;
-atomic_t cm_connect_reqs;
-atomic_t cm_rejects;
+atomic_unchecked_t cm_connects;
+atomic_unchecked_t cm_accepts;
+atomic_unchecked_t cm_disconnects;
+atomic_unchecked_t cm_closes;
+atomic_unchecked_t cm_connecteds;
+atomic_unchecked_t cm_connect_reqs;
+atomic_unchecked_t cm_rejects;
 
 int nes_add_ref_cm_node(struct nes_cm_node *cm_node)
 {
@@ -1333,7 +1333,7 @@ static int mini_cm_dec_refcnt_listen(struct nes_cm_core *cm_core,
 		kfree(listener);
 		listener = NULL;
 		ret = 0;
-		atomic_inc(&cm_listens_destroyed);
+		atomic_inc_unchecked(&cm_listens_destroyed);
 	} else {
 		spin_unlock_irqrestore(&cm_core->listen_list_lock, flags);
 	}
@@ -1537,7 +1537,7 @@ static struct nes_cm_node *make_cm_node(struct nes_cm_core *cm_core,
 		  cm_node->rem_mac);
 
 	add_hte_node(cm_core, cm_node);
-	atomic_inc(&cm_nodes_created);
+	atomic_inc_unchecked(&cm_nodes_created);
 
 	return cm_node;
 }
@@ -1596,7 +1596,7 @@ static int rem_ref_cm_node(struct nes_cm_core *cm_core,
 	}
 
 	atomic_dec(&cm_core->node_cnt);
-	atomic_inc(&cm_nodes_destroyed);
+	atomic_inc_unchecked(&cm_nodes_destroyed);
 	nesqp = cm_node->nesqp;
 	if (nesqp) {
 		nesqp->cm_node = NULL;
@@ -1660,7 +1660,7 @@ static int process_options(struct nes_cm_node *cm_node, u8 *optionsloc,
 
 static void drop_packet(struct sk_buff *skb)
 {
-	atomic_inc(&cm_accel_dropped_pkts);
+	atomic_inc_unchecked(&cm_accel_dropped_pkts);
 	dev_kfree_skb_any(skb);
 }
 
@@ -1723,7 +1723,7 @@ static void handle_rst_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb,
 {
 
 	int	reset = 0;	/* whether to send reset in case of err.. */
-	atomic_inc(&cm_resets_recvd);
+	atomic_inc_unchecked(&cm_resets_recvd);
 	nes_debug(NES_DBG_CM, "Received Reset, cm_node = %p, state = %u."
 			" refcnt=%d\n", cm_node, cm_node->state,
 			atomic_read(&cm_node->ref_count));
@@ -2369,7 +2369,7 @@ static struct nes_cm_node *mini_cm_connect(struct nes_cm_core *cm_core,
 				rem_ref_cm_node(cm_node->cm_core, cm_node);
 				return NULL;
 			}
-			atomic_inc(&cm_loopbacks);
+			atomic_inc_unchecked(&cm_loopbacks);
 			loopbackremotenode->loopbackpartner = cm_node;
 			loopbackremotenode->tcp_cntxt.rcv_wscale =
 				NES_CM_DEFAULT_RCV_WND_SCALE;
@@ -2644,7 +2644,7 @@ static int mini_cm_recv_pkt(struct nes_cm_core *cm_core,
 				nes_queue_mgt_skbs(skb, nesvnic, cm_node->nesqp);
 			else {
 				rem_ref_cm_node(cm_core, cm_node);
-				atomic_inc(&cm_accel_dropped_pkts);
+				atomic_inc_unchecked(&cm_accel_dropped_pkts);
 				dev_kfree_skb_any(skb);
 			}
 			break;
@@ -2965,7 +2965,7 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp)
 
 	if ((cm_id) && (cm_id->event_handler)) {
 		if (issue_disconn) {
-			atomic_inc(&cm_disconnects);
+			atomic_inc_unchecked(&cm_disconnects);
 			cm_event.event = IW_CM_EVENT_DISCONNECT;
 			cm_event.status = disconn_status;
 			cm_event.local_addr = cm_id->m_local_addr;
@@ -2987,7 +2987,7 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp)
 		}
 
 		if (issue_close) {
-			atomic_inc(&cm_closes);
+			atomic_inc_unchecked(&cm_closes);
 			nes_disconnect(nesqp, 1);
 
 			cm_id->provider_data = nesqp;
@@ -3124,7 +3124,7 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
 
 	nes_debug(NES_DBG_CM, "QP%u, cm_node=%p, jiffies = %lu listener = %p\n",
 		nesqp->hwqp.qp_id, cm_node, jiffies, cm_node->listener);
-	atomic_inc(&cm_accepts);
+	atomic_inc_unchecked(&cm_accepts);
 
 	nes_debug(NES_DBG_CM, "netdev refcnt = %u.\n",
 			netdev_refcnt_read(nesvnic->netdev));
@@ -3320,7 +3320,7 @@ int nes_reject(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len)
 	struct nes_cm_core *cm_core;
 	u8 *start_buff;
 
-	atomic_inc(&cm_rejects);
+	atomic_inc_unchecked(&cm_rejects);
 	cm_node = (struct nes_cm_node *)cm_id->provider_data;
 	loopback = cm_node->loopbackpartner;
 	cm_core = cm_node->cm_core;
@@ -3382,7 +3382,7 @@ int nes_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
 		  ntohs(raddr->sin_port), ntohl(laddr->sin_addr.s_addr),
 		  ntohs(laddr->sin_port));
 
-	atomic_inc(&cm_connects);
+	atomic_inc_unchecked(&cm_connects);
 	nesqp->active_conn = 1;
 
 	/* cache the cm_id in the qp */
@@ -3496,7 +3496,7 @@ int nes_create_listen(struct iw_cm_id *cm_id, int backlog)
 			g_cm_core->api->stop_listener(g_cm_core, (void *)cm_node);
 			return err;
 		}
-		atomic_inc(&cm_listens_created);
+		atomic_inc_unchecked(&cm_listens_created);
 	}
 
 	cm_id->add_ref(cm_id);
@@ -3603,7 +3603,7 @@ static void cm_event_connected(struct nes_cm_event *event)
 
 	if (nesqp->destroyed)
 		return;
-	atomic_inc(&cm_connecteds);
+	atomic_inc_unchecked(&cm_connecteds);
 	nes_debug(NES_DBG_CM, "QP%u attempting to connect to  0x%08X:0x%04X on"
 		  " local port 0x%04X. jiffies = %lu.\n",
 		  nesqp->hwqp.qp_id, ntohl(raddr->sin_addr.s_addr),
@@ -3788,7 +3788,7 @@ static void cm_event_reset(struct nes_cm_event *event)
 
 	cm_id->add_ref(cm_id);
 	ret = cm_id->event_handler(cm_id, &cm_event);
-	atomic_inc(&cm_closes);
+	atomic_inc_unchecked(&cm_closes);
 	cm_event.event = IW_CM_EVENT_CLOSE;
 	cm_event.status = 0;
 	cm_event.provider_data = cm_id->provider_data;
@@ -3828,7 +3828,7 @@ static void cm_event_mpa_req(struct nes_cm_event *event)
 		return;
 	cm_id = cm_node->cm_id;
 
-	atomic_inc(&cm_connect_reqs);
+	atomic_inc_unchecked(&cm_connect_reqs);
 	nes_debug(NES_DBG_CM, "cm_node = %p - cm_id = %p, jiffies = %lu\n",
 		  cm_node, cm_id, jiffies);
 
@@ -3877,7 +3877,7 @@ static void cm_event_mpa_reject(struct nes_cm_event *event)
 		return;
 	cm_id = cm_node->cm_id;
 
-	atomic_inc(&cm_connect_reqs);
+	atomic_inc_unchecked(&cm_connect_reqs);
 	nes_debug(NES_DBG_CM, "cm_node = %p - cm_id = %p, jiffies = %lu\n",
 		  cm_node, cm_id, jiffies);
 
diff --git a/drivers/infiniband/hw/nes/nes_mgt.c b/drivers/infiniband/hw/nes/nes_mgt.c
index 4166452..fc952c3 100644
--- a/drivers/infiniband/hw/nes/nes_mgt.c
+++ b/drivers/infiniband/hw/nes/nes_mgt.c
@@ -40,8 +40,8 @@
 #include "nes.h"
 #include "nes_mgt.h"
 
-atomic_t pau_qps_created;
-atomic_t pau_qps_destroyed;
+atomic_unchecked_t pau_qps_created;
+atomic_unchecked_t pau_qps_destroyed;
 
 static void nes_replenish_mgt_rq(struct nes_vnic_mgt *mgtvnic)
 {
@@ -621,7 +621,7 @@ void nes_destroy_pau_qp(struct nes_device *nesdev, struct nes_qp *nesqp)
 {
 	struct sk_buff *skb;
 	unsigned long flags;
-	atomic_inc(&pau_qps_destroyed);
+	atomic_inc_unchecked(&pau_qps_destroyed);
 
 	/* Free packets that have not yet been forwarded */
 	/* Lock is acquired by skb_dequeue when removing the skb */
@@ -810,7 +810,7 @@ static void nes_mgt_ce_handler(struct nes_device *nesdev, struct nes_hw_nic_cq *
 					cq->cq_vbase[head].cqe_words[NES_NIC_CQE_HASH_RCVNXT]);
 				skb_queue_head_init(&nesqp->pau_list);
 				spin_lock_init(&nesqp->pau_lock);
-				atomic_inc(&pau_qps_created);
+				atomic_inc_unchecked(&pau_qps_created);
 				nes_change_quad_hash(nesdev, mgtvnic->nesvnic, nesqp);
 			}
 
diff --git a/drivers/infiniband/hw/nes/nes_nic.c b/drivers/infiniband/hw/nes/nes_nic.c
index 9291453..b3d0366 100644
--- a/drivers/infiniband/hw/nes/nes_nic.c
+++ b/drivers/infiniband/hw/nes/nes_nic.c
@@ -462,7 +462,7 @@ static int nes_nic_send(struct sk_buff *skb, struct net_device *netdev)
 /**
  * nes_netdev_start_xmit
  */
-static int nes_netdev_start_xmit(struct sk_buff *skb, struct net_device *netdev)
+static netdev_tx_t nes_netdev_start_xmit(struct sk_buff *skb, struct net_device *netdev)
 {
 	struct nes_vnic *nesvnic = netdev_priv(netdev);
 	struct nes_device *nesdev = nesvnic->nesdev;
@@ -1268,36 +1268,36 @@ static void nes_netdev_get_ethtool_stats(struct net_device *netdev,
 	target_stat_values[++index] = mh_detected;
 	target_stat_values[++index] = mh_pauses_sent;
 	target_stat_values[++index] = nesvnic->endnode_ipv4_tcp_retransmits;
-	target_stat_values[++index] = atomic_read(&cm_connects);
-	target_stat_values[++index] = atomic_read(&cm_accepts);
-	target_stat_values[++index] = atomic_read(&cm_disconnects);
-	target_stat_values[++index] = atomic_read(&cm_connecteds);
-	target_stat_values[++index] = atomic_read(&cm_connect_reqs);
-	target_stat_values[++index] = atomic_read(&cm_rejects);
-	target_stat_values[++index] = atomic_read(&mod_qp_timouts);
-	target_stat_values[++index] = atomic_read(&qps_created);
-	target_stat_values[++index] = atomic_read(&sw_qps_destroyed);
-	target_stat_values[++index] = atomic_read(&qps_destroyed);
-	target_stat_values[++index] = atomic_read(&cm_closes);
+	target_stat_values[++index] = atomic_read_unchecked(&cm_connects);
+	target_stat_values[++index] = atomic_read_unchecked(&cm_accepts);
+	target_stat_values[++index] = atomic_read_unchecked(&cm_disconnects);
+	target_stat_values[++index] = atomic_read_unchecked(&cm_connecteds);
+	target_stat_values[++index] = atomic_read_unchecked(&cm_connect_reqs);
+	target_stat_values[++index] = atomic_read_unchecked(&cm_rejects);
+	target_stat_values[++index] = atomic_read_unchecked(&mod_qp_timouts);
+	target_stat_values[++index] = atomic_read_unchecked(&qps_created);
+	target_stat_values[++index] = atomic_read_unchecked(&sw_qps_destroyed);
+	target_stat_values[++index] = atomic_read_unchecked(&qps_destroyed);
+	target_stat_values[++index] = atomic_read_unchecked(&cm_closes);
 	target_stat_values[++index] = cm_packets_sent;
 	target_stat_values[++index] = cm_packets_bounced;
 	target_stat_values[++index] = cm_packets_created;
 	target_stat_values[++index] = cm_packets_received;
 	target_stat_values[++index] = cm_packets_dropped;
 	target_stat_values[++index] = cm_packets_retrans;
-	target_stat_values[++index] = atomic_read(&cm_listens_created);
-	target_stat_values[++index] = atomic_read(&cm_listens_destroyed);
+	target_stat_values[++index] = atomic_read_unchecked(&cm_listens_created);
+	target_stat_values[++index] = atomic_read_unchecked(&cm_listens_destroyed);
 	target_stat_values[++index] = cm_backlog_drops;
-	target_stat_values[++index] = atomic_read(&cm_loopbacks);
-	target_stat_values[++index] = atomic_read(&cm_nodes_created);
-	target_stat_values[++index] = atomic_read(&cm_nodes_destroyed);
-	target_stat_values[++index] = atomic_read(&cm_accel_dropped_pkts);
-	target_stat_values[++index] = atomic_read(&cm_resets_recvd);
+	target_stat_values[++index] = atomic_read_unchecked(&cm_loopbacks);
+	target_stat_values[++index] = atomic_read_unchecked(&cm_nodes_created);
+	target_stat_values[++index] = atomic_read_unchecked(&cm_nodes_destroyed);
+	target_stat_values[++index] = atomic_read_unchecked(&cm_accel_dropped_pkts);
+	target_stat_values[++index] = atomic_read_unchecked(&cm_resets_recvd);
 	target_stat_values[++index] = nesadapter->free_4kpbl;
 	target_stat_values[++index] = nesadapter->free_256pbl;
 	target_stat_values[++index] = int_mod_timer_init;
-	target_stat_values[++index] = atomic_read(&pau_qps_created);
-	target_stat_values[++index] = atomic_read(&pau_qps_destroyed);
+	target_stat_values[++index] = atomic_read_unchecked(&pau_qps_created);
+	target_stat_values[++index] = atomic_read_unchecked(&pau_qps_destroyed);
 }
 
 /**
diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c
index fba69a3..ecf3aee 100644
--- a/drivers/infiniband/hw/nes/nes_verbs.c
+++ b/drivers/infiniband/hw/nes/nes_verbs.c
@@ -46,9 +46,9 @@
 
 #include <rdma/ib_umem.h>
 
-atomic_t mod_qp_timouts;
-atomic_t qps_created;
-atomic_t sw_qps_destroyed;
+atomic_unchecked_t mod_qp_timouts;
+atomic_unchecked_t qps_created;
+atomic_unchecked_t sw_qps_destroyed;
 
 static void nes_unregister_ofa_device(struct nes_ib_device *nesibdev);
 static int nes_dereg_mr(struct ib_mr *ib_mr);
@@ -1041,7 +1041,7 @@ static struct ib_qp *nes_create_qp(struct ib_pd *ibpd,
 	if (init_attr->create_flags)
 		return ERR_PTR(-EINVAL);
 
-	atomic_inc(&qps_created);
+	atomic_inc_unchecked(&qps_created);
 	switch (init_attr->qp_type) {
 		case IB_QPT_RC:
 			if (nes_drv_opt & NES_DRV_OPT_NO_INLINE_DATA) {
@@ -1375,7 +1375,7 @@ static int nes_destroy_qp(struct ib_qp *ibqp)
 	struct iw_cm_event cm_event;
 	int ret = 0;
 
-	atomic_inc(&sw_qps_destroyed);
+	atomic_inc_unchecked(&sw_qps_destroyed);
 	nesqp->destroyed = 1;
 
 	/* Blow away the connection if it exists. */
diff --git a/drivers/infiniband/hw/qib/qib_iba7322.c b/drivers/infiniband/hw/qib/qib_iba7322.c
index 82d7c4b..5da4377 100644
--- a/drivers/infiniband/hw/qib/qib_iba7322.c
+++ b/drivers/infiniband/hw/qib/qib_iba7322.c
@@ -150,7 +150,7 @@ static struct kparam_string kp_txselect = {
 	.string = txselect_list,
 	.maxlen = MAX_ATTEN_LEN
 };
-static int  setup_txselect(const char *, struct kernel_param *);
+static int  setup_txselect(const char *, const struct kernel_param *);
 module_param_call(txselect, setup_txselect, param_get_string,
 		  &kp_txselect, S_IWUSR | S_IRUGO);
 MODULE_PARM_DESC(txselect,
@@ -6192,7 +6192,7 @@ static void set_no_qsfp_atten(struct qib_devdata *dd, int change)
 }
 
 /* handle the txselect parameter changing */
-static int setup_txselect(const char *str, struct kernel_param *kp)
+static int setup_txselect(const char *str, const struct kernel_param *kp)
 {
 	struct qib_devdata *dd;
 	unsigned long val;
diff --git a/drivers/infiniband/hw/qib/qib_pcie.c b/drivers/infiniband/hw/qib/qib_pcie.c
index 4758a38..571a55f 100644
--- a/drivers/infiniband/hw/qib/qib_pcie.c
+++ b/drivers/infiniband/hw/qib/qib_pcie.c
@@ -628,7 +628,7 @@ static void qib_tune_pcie_caps(struct qib_devdata *dd)
  * PCI error infrastructure, registered via pci
  */
 static pci_ers_result_t
-qib_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
+qib_pci_error_detected(struct pci_dev *pdev, enum pci_channel_state state)
 {
 	struct qib_devdata *dd = pci_get_drvdata(pdev);
 	pci_ers_result_t ret = PCI_ERS_RESULT_RECOVERED;
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index 80807d6..a72293a 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -948,7 +948,7 @@ static void unicast_arp_send(struct sk_buff *skb, struct net_device *dev,
 	spin_unlock_irqrestore(&priv->lock, flags);
 }
 
-static int ipoib_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t ipoib_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct ipoib_dev_priv *priv = netdev_priv(dev);
 	struct ipoib_neigh *neigh;
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_netlink.c b/drivers/infiniband/ulp/ipoib/ipoib_netlink.c
index cdc7df4..a2fdfdb 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_netlink.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_netlink.c
@@ -156,7 +156,7 @@ static size_t ipoib_get_size(const struct net_device *dev)
 		nla_total_size(2);	/* IFLA_IPOIB_UMCAST */
 }
 
-static struct rtnl_link_ops ipoib_link_ops __read_mostly = {
+static struct rtnl_link_ops ipoib_link_ops = {
 	.kind		= "ipoib",
 	.maxtype	= IFLA_IPOIB_MAX,
 	.policy		= ipoib_policy,
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index 8b42401..f855977 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -80,7 +80,7 @@ module_param(srpt_srq_size, int, 0444);
 MODULE_PARM_DESC(srpt_srq_size,
 		 "Shared receive queue (SRQ) size.");
 
-static int srpt_get_u64_x(char *buffer, struct kernel_param *kp)
+static int srpt_get_u64_x(char *buffer, const struct kernel_param *kp)
 {
 	return sprintf(buffer, "0x%016llx", *(u64 *)kp->arg);
 }
@@ -196,8 +196,9 @@ static const char *get_ch_state_name(enum rdma_ch_state s)
 /**
  * srpt_qp_event() - QP event callback function.
  */
-static void srpt_qp_event(struct ib_event *event, struct srpt_rdma_ch *ch)
+static void srpt_qp_event(struct ib_event *event, void *_ch)
 {
+	struct srpt_rdma_ch *ch = _ch;
 	pr_debug("QP event %d on cm_id=%p sess_name=%s state=%d\n",
 		 event->event, ch->cm_id, ch->sess_name, ch->state);
 
@@ -1825,8 +1826,7 @@ retry:
 	}
 
 	qp_init->qp_context = (void *)ch;
-	qp_init->event_handler
-		= (void(*)(struct ib_event *, void*))srpt_qp_event;
+	qp_init->event_handler = srpt_qp_event;
 	qp_init->send_cq = ch->cq;
 	qp_init->recv_cq = ch->cq;
 	qp_init->srq = sdev->srq;
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index e9ae3d5..96e4940 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -997,7 +997,7 @@ static int evdev_set_mask(struct evdev_client *client,
 	if (!cnt)
 		return 0;
 
-	mask = kcalloc(sizeof(unsigned long), BITS_TO_LONGS(cnt), GFP_KERNEL);
+	mask = kcalloc(BITS_TO_LONGS(cnt), sizeof(unsigned long), GFP_KERNEL);
 	if (!mask)
 		return -ENOMEM;
 
diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c
index 4a2a9e3..b9261a7 100644
--- a/drivers/input/gameport/gameport.c
+++ b/drivers/input/gameport/gameport.c
@@ -527,14 +527,14 @@ EXPORT_SYMBOL(gameport_set_phys);
  */
 static void gameport_init_port(struct gameport *gameport)
 {
-	static atomic_t gameport_no = ATOMIC_INIT(-1);
+	static atomic_unchecked_t gameport_no = ATOMIC_INIT(-1);
 
 	__module_get(THIS_MODULE);
 
 	mutex_init(&gameport->drv_mutex);
 	device_initialize(&gameport->dev);
 	dev_set_name(&gameport->dev, "gameport%lu",
-			(unsigned long)atomic_inc_return(&gameport_no));
+			(unsigned long)atomic_inc_return_unchecked(&gameport_no));
 	gameport->dev.bus = &gameport_bus;
 	gameport->dev.release = gameport_release_port;
 	if (gameport->parent)
diff --git a/drivers/input/input.c b/drivers/input/input.c
index b87ffbd..6132a53 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -1781,7 +1781,7 @@ EXPORT_SYMBOL_GPL(input_class);
  */
 struct input_dev *input_allocate_device(void)
 {
-	static atomic_t input_no = ATOMIC_INIT(-1);
+	static atomic_unchecked_t input_no = ATOMIC_INIT(-1);
 	struct input_dev *dev;
 
 	dev = kzalloc(sizeof(struct input_dev), GFP_KERNEL);
@@ -1796,7 +1796,7 @@ struct input_dev *input_allocate_device(void)
 		INIT_LIST_HEAD(&dev->node);
 
 		dev_set_name(&dev->dev, "input%lu",
-			     (unsigned long)atomic_inc_return(&input_no));
+			     (unsigned long)atomic_inc_return_unchecked(&input_no));
 
 		__module_get(THIS_MODULE);
 	}
diff --git a/drivers/input/joystick/sidewinder.c b/drivers/input/joystick/sidewinder.c
index 4a95b22..874c182 100644
--- a/drivers/input/joystick/sidewinder.c
+++ b/drivers/input/joystick/sidewinder.c
@@ -30,6 +30,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/slab.h>
+#include <linux/sched.h>
 #include <linux/input.h>
 #include <linux/gameport.h>
 #include <linux/jiffies.h>
diff --git a/drivers/input/misc/ims-pcu.c b/drivers/input/misc/ims-pcu.c
index 9c0ea36..1e1a411 100644
--- a/drivers/input/misc/ims-pcu.c
+++ b/drivers/input/misc/ims-pcu.c
@@ -1855,7 +1855,7 @@ static int ims_pcu_identify_type(struct ims_pcu *pcu, u8 *device_id)
 
 static int ims_pcu_init_application_mode(struct ims_pcu *pcu)
 {
-	static atomic_t device_no = ATOMIC_INIT(-1);
+	static atomic_unchecked_t device_no = ATOMIC_INIT(-1);
 
 	const struct ims_pcu_device_info *info;
 	int error;
@@ -1886,7 +1886,7 @@ static int ims_pcu_init_application_mode(struct ims_pcu *pcu)
 	}
 
 	/* Device appears to be operable, complete initialization */
-	pcu->device_no = atomic_inc_return(&device_no);
+	pcu->device_no = atomic_inc_return_unchecked(&device_no);
 
 	/*
 	 * PCU-B devices, both GEN_1 and GEN_2 do not have OFN sensor
diff --git a/drivers/input/mouse/psmouse.h b/drivers/input/mouse/psmouse.h
index e0ca6cd..b5a2681 100644
--- a/drivers/input/mouse/psmouse.h
+++ b/drivers/input/mouse/psmouse.h
@@ -126,7 +126,7 @@ struct psmouse_attribute {
 	ssize_t (*set)(struct psmouse *psmouse, void *data,
 			const char *buf, size_t count);
 	bool protect;
-};
+} __do_const;
 #define to_psmouse_attr(a)	container_of((a), struct psmouse_attribute, dattr)
 
 ssize_t psmouse_attr_show_helper(struct device *dev, struct device_attribute *attr,
diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c
index b604564..3f14ae4 100644
--- a/drivers/input/mousedev.c
+++ b/drivers/input/mousedev.c
@@ -744,7 +744,7 @@ static ssize_t mousedev_read(struct file *file, char __user *buffer,
 
 	spin_unlock_irq(&client->packet_lock);
 
-	if (copy_to_user(buffer, data, count))
+	if (count > sizeof(data) || copy_to_user(buffer, data, count))
 		return -EFAULT;
 
 	return count;
diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
index 1ca7f55..2562607 100644
--- a/drivers/input/serio/serio.c
+++ b/drivers/input/serio/serio.c
@@ -512,7 +512,7 @@ static void serio_release_port(struct device *dev)
  */
 static void serio_init_port(struct serio *serio)
 {
-	static atomic_t serio_no = ATOMIC_INIT(-1);
+	static atomic_unchecked_t serio_no = ATOMIC_INIT(-1);
 
 	__module_get(THIS_MODULE);
 
@@ -523,7 +523,7 @@ static void serio_init_port(struct serio *serio)
 	mutex_init(&serio->drv_mutex);
 	device_initialize(&serio->dev);
 	dev_set_name(&serio->dev, "serio%lu",
-		     (unsigned long)atomic_inc_return(&serio_no));
+		     (unsigned long)atomic_inc_return_unchecked(&serio_no));
 	serio->dev.bus = &serio_bus;
 	serio->dev.release = serio_release_port;
 	serio->dev.groups = serio_device_attr_groups;
diff --git a/drivers/input/serio/serio_raw.c b/drivers/input/serio/serio_raw.c
index 71ef5d6..93380a9 100644
--- a/drivers/input/serio/serio_raw.c
+++ b/drivers/input/serio/serio_raw.c
@@ -292,7 +292,7 @@ static irqreturn_t serio_raw_interrupt(struct serio *serio, unsigned char data,
 
 static int serio_raw_connect(struct serio *serio, struct serio_driver *drv)
 {
-	static atomic_t serio_raw_no = ATOMIC_INIT(-1);
+	static atomic_unchecked_t serio_raw_no = ATOMIC_INIT(-1);
 	struct serio_raw *serio_raw;
 	int err;
 
@@ -303,7 +303,7 @@ static int serio_raw_connect(struct serio *serio, struct serio_driver *drv)
 	}
 
 	snprintf(serio_raw->name, sizeof(serio_raw->name),
-		 "serio_raw%ld", (long)atomic_inc_return(&serio_raw_no));
+		 "serio_raw%ld", (long)atomic_inc_return_unchecked(&serio_raw_no));
 	kref_init(&serio_raw->kref);
 	INIT_LIST_HEAD(&serio_raw->client_list);
 	init_waitqueue_head(&serio_raw->wait);
diff --git a/drivers/input/touchscreen/htcpen.c b/drivers/input/touchscreen/htcpen.c
index 92e2243..8fd9092 100644
--- a/drivers/input/touchscreen/htcpen.c
+++ b/drivers/input/touchscreen/htcpen.c
@@ -219,7 +219,7 @@ static struct isa_driver htcpen_isa_driver = {
 	}
 };
 
-static struct dmi_system_id htcshift_dmi_table[] __initdata = {
+static const struct dmi_system_id htcshift_dmi_table[] __initconst = {
 	{
 		.ident = "Shift",
 		.matches = {
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index dd1dc39..f595bbe 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -128,6 +128,7 @@ config AMD_IOMMU_STATS
 	bool "Export AMD IOMMU statistics to debugfs"
 	depends on AMD_IOMMU
 	select DEBUG_FS
+	depends on !GRKERNSEC_KMEM
 	---help---
 	  This option enables code in the AMD IOMMU driver to collect various
 	  statistics about whats happening in the driver and exports that
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 5efadad..d1b358e 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -804,11 +804,21 @@ static void copy_cmd_to_buffer(struct amd_iommu *iommu,
 
 static void build_completion_wait(struct iommu_cmd *cmd, u64 address)
 {
+	phys_addr_t physaddr;
 	WARN_ON(address & 0x7ULL);
 
 	memset(cmd, 0, sizeof(*cmd));
-	cmd->data[0] = lower_32_bits(__pa(address)) | CMD_COMPL_WAIT_STORE_MASK;
-	cmd->data[1] = upper_32_bits(__pa(address));
+
+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
+	if (object_starts_on_stack((void *)address)) {
+		void *adjbuf = (void *)address - current->stack + current->lowmem_stack;
+		physaddr = __pa((u64)adjbuf);
+	} else
+#endif
+	physaddr = __pa(address);
+
+	cmd->data[0] = lower_32_bits(physaddr) | CMD_COMPL_WAIT_STORE_MASK;
+	cmd->data[1] = upper_32_bits(physaddr);
 	cmd->data[2] = 1;
 	CMD_SET_TYPE(cmd, CMD_COMPL_WAIT);
 }
diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c
index 4ff73ff..6f1ffa8 100644
--- a/drivers/iommu/arm-smmu-v3.c
+++ b/drivers/iommu/arm-smmu-v3.c
@@ -1562,7 +1562,7 @@ static int arm_smmu_domain_finalise(struct iommu_domain *domain)
 		.iommu_dev	= smmu->dev,
 	};
 
-	pgtbl_ops = alloc_io_pgtable_ops(fmt, &pgtbl_cfg, smmu_domain);
+	pgtbl_ops = alloc_io_pgtable(fmt, &pgtbl_cfg, smmu_domain);
 	if (!pgtbl_ops)
 		return -ENOMEM;
 
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index 7c39ac4..c43d295 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -349,7 +349,7 @@ enum arm_smmu_domain_stage {
 
 struct arm_smmu_domain {
 	struct arm_smmu_device		*smmu;
-	struct io_pgtable_ops		*pgtbl_ops;
+	struct io_pgtable		*pgtbl;
 	spinlock_t			pgtbl_lock;
 	struct arm_smmu_cfg		cfg;
 	enum arm_smmu_domain_stage	stage;
@@ -816,7 +816,7 @@ static int arm_smmu_init_domain_context(struct iommu_domain *domain,
 {
 	int irq, start, ret = 0;
 	unsigned long ias, oas;
-	struct io_pgtable_ops *pgtbl_ops;
+	struct io_pgtable *pgtbl;
 	struct io_pgtable_cfg pgtbl_cfg;
 	enum io_pgtable_fmt fmt;
 	struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain);
@@ -908,14 +908,16 @@ static int arm_smmu_init_domain_context(struct iommu_domain *domain,
 	};
 
 	smmu_domain->smmu = smmu;
-	pgtbl_ops = alloc_io_pgtable_ops(fmt, &pgtbl_cfg, smmu_domain);
-	if (!pgtbl_ops) {
+	pgtbl = alloc_io_pgtable(fmt, &pgtbl_cfg, smmu_domain);
+	if (!pgtbl) {
 		ret = -ENOMEM;
 		goto out_clear_smmu;
 	}
 
 	/* Update our support page sizes to reflect the page table format */
-	arm_smmu_ops.pgsize_bitmap = pgtbl_cfg.pgsize_bitmap;
+	pax_open_kernel();
+	const_cast(arm_smmu_ops.pgsize_bitmap) = pgtbl_cfg.pgsize_bitmap;
+	pax_close_kernel();
 
 	/* Initialise the context bank with our page table cfg */
 	arm_smmu_init_context_bank(smmu_domain, &pgtbl_cfg);
@@ -936,7 +938,7 @@ static int arm_smmu_init_domain_context(struct iommu_domain *domain,
 	mutex_unlock(&smmu_domain->init_mutex);
 
 	/* Publish page table ops for map/unmap */
-	smmu_domain->pgtbl_ops = pgtbl_ops;
+	smmu_domain->pgtbl = pgtbl;
 	return 0;
 
 out_clear_smmu:
@@ -969,7 +971,7 @@ static void arm_smmu_destroy_domain_context(struct iommu_domain *domain)
 		free_irq(irq, domain);
 	}
 
-	free_io_pgtable_ops(smmu_domain->pgtbl_ops);
+	free_io_pgtable(smmu_domain->pgtbl);
 	__arm_smmu_free_bitmap(smmu->context_map, cfg->cbndx);
 }
 
@@ -1206,13 +1208,13 @@ static int arm_smmu_map(struct iommu_domain *domain, unsigned long iova,
 	int ret;
 	unsigned long flags;
 	struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain);
-	struct io_pgtable_ops *ops= smmu_domain->pgtbl_ops;
+	struct io_pgtable *iop = smmu_domain->pgtbl;
 
-	if (!ops)
+	if (!iop)
 		return -ENODEV;
 
 	spin_lock_irqsave(&smmu_domain->pgtbl_lock, flags);
-	ret = ops->map(ops, iova, paddr, size, prot);
+	ret = iop->ops->map(iop, iova, paddr, size, prot);
 	spin_unlock_irqrestore(&smmu_domain->pgtbl_lock, flags);
 	return ret;
 }
@@ -1223,13 +1225,13 @@ static size_t arm_smmu_unmap(struct iommu_domain *domain, unsigned long iova,
 	size_t ret;
 	unsigned long flags;
 	struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain);
-	struct io_pgtable_ops *ops= smmu_domain->pgtbl_ops;
+	struct io_pgtable *iop = smmu_domain->pgtbl;
 
-	if (!ops)
+	if (!iop)
 		return 0;
 
 	spin_lock_irqsave(&smmu_domain->pgtbl_lock, flags);
-	ret = ops->unmap(ops, iova, size);
+	ret = iop->ops->unmap(iop, iova, size);
 	spin_unlock_irqrestore(&smmu_domain->pgtbl_lock, flags);
 	return ret;
 }
@@ -1240,7 +1242,7 @@ static phys_addr_t arm_smmu_iova_to_phys_hard(struct iommu_domain *domain,
 	struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain);
 	struct arm_smmu_device *smmu = smmu_domain->smmu;
 	struct arm_smmu_cfg *cfg = &smmu_domain->cfg;
-	struct io_pgtable_ops *ops= smmu_domain->pgtbl_ops;
+	struct io_pgtable *iop = smmu_domain->pgtbl;
 	struct device *dev = smmu->dev;
 	void __iomem *cb_base;
 	u32 tmp;
@@ -1261,7 +1263,7 @@ static phys_addr_t arm_smmu_iova_to_phys_hard(struct iommu_domain *domain,
 		dev_err(dev,
 			"iova to phys timed out on %pad. Falling back to software table walk.\n",
 			&iova);
-		return ops->iova_to_phys(ops, iova);
+		return iop->ops->iova_to_phys(iop, iova);
 	}
 
 	phys = readl_relaxed(cb_base + ARM_SMMU_CB_PAR_LO);
@@ -1282,9 +1284,9 @@ static phys_addr_t arm_smmu_iova_to_phys(struct iommu_domain *domain,
 	phys_addr_t ret;
 	unsigned long flags;
 	struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain);
-	struct io_pgtable_ops *ops= smmu_domain->pgtbl_ops;
+	struct io_pgtable *iop = smmu_domain->pgtbl;
 
-	if (!ops)
+	if (!iop)
 		return 0;
 
 	spin_lock_irqsave(&smmu_domain->pgtbl_lock, flags);
@@ -1292,7 +1294,7 @@ static phys_addr_t arm_smmu_iova_to_phys(struct iommu_domain *domain,
 			smmu_domain->stage == ARM_SMMU_DOMAIN_S1) {
 		ret = arm_smmu_iova_to_phys_hard(domain, iova);
 	} else {
-		ret = ops->iova_to_phys(ops, iova);
+		ret = iop->ops->iova_to_phys(iop, iova);
 	}
 
 	spin_unlock_irqrestore(&smmu_domain->pgtbl_lock, flags);
@@ -1714,7 +1716,9 @@ static int arm_smmu_device_cfg_probe(struct arm_smmu_device *smmu)
 			size |= SZ_64K | SZ_512M;
 	}
 
-	arm_smmu_ops.pgsize_bitmap &= size;
+	pax_open_kernel();
+	const_cast(arm_smmu_ops.pgsize_bitmap) &= size;
+	pax_close_kernel();
 	dev_notice(smmu->dev, "\tSupported page sizes: 0x%08lx\n", size);
 
 	if (smmu->features & ARM_SMMU_FEAT_TRANS_S1)
diff --git a/drivers/iommu/io-pgtable-arm-v7s.c b/drivers/iommu/io-pgtable-arm-v7s.c
index 9488e3c..1411569 100644
--- a/drivers/iommu/io-pgtable-arm-v7s.c
+++ b/drivers/iommu/io-pgtable-arm-v7s.c
@@ -49,9 +49,6 @@
 #define io_pgtable_to_data(x)						\
 	container_of((x), struct arm_v7s_io_pgtable, iop)
 
-#define io_pgtable_ops_to_data(x)					\
-	io_pgtable_to_data(io_pgtable_ops_to_pgtable(x))
-
 /*
  * We have 32 bits total; 12 bits resolved at level 1, 8 bits at level 2,
  * and 12 bits in a page. With some carefully-chosen coefficients we can
@@ -413,11 +410,10 @@ static int __arm_v7s_map(struct arm_v7s_io_pgtable *data, unsigned long iova,
 	return __arm_v7s_map(data, iova, paddr, size, prot, lvl + 1, cptep);
 }
 
-static int arm_v7s_map(struct io_pgtable_ops *ops, unsigned long iova,
+static int arm_v7s_map(struct io_pgtable *iop, unsigned long iova,
 			phys_addr_t paddr, size_t size, int prot)
 {
-	struct arm_v7s_io_pgtable *data = io_pgtable_ops_to_data(ops);
-	struct io_pgtable *iop = &data->iop;
+	struct arm_v7s_io_pgtable *data = io_pgtable_to_data(iop);
 	int ret;
 
 	/* If no access, then nothing to do */
@@ -580,10 +576,10 @@ static int __arm_v7s_unmap(struct arm_v7s_io_pgtable *data,
 	return __arm_v7s_unmap(data, iova, size, lvl + 1, ptep);
 }
 
-static int arm_v7s_unmap(struct io_pgtable_ops *ops, unsigned long iova,
+static int arm_v7s_unmap(struct io_pgtable *iop, unsigned long iova,
 			 size_t size)
 {
-	struct arm_v7s_io_pgtable *data = io_pgtable_ops_to_data(ops);
+	struct arm_v7s_io_pgtable *data = io_pgtable_to_data(iop);
 	size_t unmapped;
 
 	unmapped = __arm_v7s_unmap(data, iova, size, 1, data->pgd);
@@ -593,10 +589,10 @@ static int arm_v7s_unmap(struct io_pgtable_ops *ops, unsigned long iova,
 	return unmapped;
 }
 
-static phys_addr_t arm_v7s_iova_to_phys(struct io_pgtable_ops *ops,
+static phys_addr_t arm_v7s_iova_to_phys(struct io_pgtable *iop,
 					unsigned long iova)
 {
-	struct arm_v7s_io_pgtable *data = io_pgtable_ops_to_data(ops);
+	struct arm_v7s_io_pgtable *data = io_pgtable_to_data(iop);
 	arm_v7s_iopte *ptep = data->pgd, pte;
 	int lvl = 0;
 	u32 mask;
@@ -615,6 +611,12 @@ static phys_addr_t arm_v7s_iova_to_phys(struct io_pgtable_ops *ops,
 	return (pte & mask) | (iova & ~mask);
 }
 
+static struct io_pgtable_ops arm_v7s_io_pgtable_ops = {
+	.map		= arm_v7s_map,
+	.unmap		= arm_v7s_unmap,
+	.iova_to_phys	= arm_v7s_iova_to_phys,
+};
+
 static struct io_pgtable *arm_v7s_alloc_pgtable(struct io_pgtable_cfg *cfg,
 						void *cookie)
 {
@@ -639,11 +641,7 @@ static struct io_pgtable *arm_v7s_alloc_pgtable(struct io_pgtable_cfg *cfg,
 	if (!data->l2_tables)
 		goto out_free_data;
 
-	data->iop.ops = (struct io_pgtable_ops) {
-		.map		= arm_v7s_map,
-		.unmap		= arm_v7s_unmap,
-		.iova_to_phys	= arm_v7s_iova_to_phys,
-	};
+	data->iop.ops = &arm_v7s_io_pgtable_ops;
 
 	/* We have to do this early for __arm_v7s_alloc_table to work... */
 	data->iop.cfg = *cfg;
@@ -732,7 +730,7 @@ static struct iommu_gather_ops dummy_tlb_ops = {
 
 static int __init arm_v7s_do_selftests(void)
 {
-	struct io_pgtable_ops *ops;
+	struct io_pgtable *pgtbl;
 	struct io_pgtable_cfg cfg = {
 		.tlb = &dummy_tlb_ops,
 		.oas = 32,
@@ -747,8 +745,8 @@ static int __init arm_v7s_do_selftests(void)
 
 	cfg_cookie = &cfg;
 
-	ops = alloc_io_pgtable_ops(ARM_V7S, &cfg, &cfg);
-	if (!ops) {
+	pgtbl = alloc_io_pgtable(ARM_V7S, &cfg, &cfg);
+	if (!pgtbl) {
 		pr_err("selftest: failed to allocate io pgtable ops\n");
 		return -EINVAL;
 	}
@@ -757,13 +755,13 @@ static int __init arm_v7s_do_selftests(void)
 	 * Initial sanity checks.
 	 * Empty page tables shouldn't provide any translations.
 	 */
-	if (ops->iova_to_phys(ops, 42))
+	if (pgtbl->ops->iova_to_phys(pgtbl, 42))
 		return __FAIL(ops);
 
-	if (ops->iova_to_phys(ops, SZ_1G + 42))
+	if (pgtbl->ops->iova_to_phys(pgtbl, SZ_1G + 42))
 		return __FAIL(ops);
 
-	if (ops->iova_to_phys(ops, SZ_2G + 42))
+	if (pgtbl->ops->iova_to_phys(pgtbl, SZ_2G + 42))
 		return __FAIL(ops);
 
 	/*
@@ -773,18 +771,18 @@ static int __init arm_v7s_do_selftests(void)
 	i = find_first_bit(&cfg.pgsize_bitmap, BITS_PER_LONG);
 	while (i != BITS_PER_LONG) {
 		size = 1UL << i;
-		if (ops->map(ops, iova, iova, size, IOMMU_READ |
+		if (pgtbl->ops->map(pgtbl, iova, iova, size, IOMMU_READ |
 						    IOMMU_WRITE |
 						    IOMMU_NOEXEC |
 						    IOMMU_CACHE))
 			return __FAIL(ops);
 
 		/* Overlapping mappings */
-		if (!ops->map(ops, iova, iova + size, size,
+		if (!pgtbl->ops->map(pgtbl, iova, iova + size, size,
 			      IOMMU_READ | IOMMU_NOEXEC))
 			return __FAIL(ops);
 
-		if (ops->iova_to_phys(ops, iova + 42) != (iova + 42))
+		if (pgtbl->ops->iova_to_phys(pgtbl, iova + 42) != (iova + 42))
 			return __FAIL(ops);
 
 		iova += SZ_16M;
@@ -798,14 +796,14 @@ static int __init arm_v7s_do_selftests(void)
 	size = 1UL << __ffs(cfg.pgsize_bitmap);
 	while (i < loopnr) {
 		iova_start = i * SZ_16M;
-		if (ops->unmap(ops, iova_start + size, size) != size)
+		if (pgtbl->ops->unmap(pgtbl, iova_start + size, size) != size)
 			return __FAIL(ops);
 
 		/* Remap of partial unmap */
-		if (ops->map(ops, iova_start + size, size, size, IOMMU_READ))
+		if (pgtbl->ops->map(pgtbl, iova_start + size, size, size, IOMMU_READ))
 			return __FAIL(ops);
 
-		if (ops->iova_to_phys(ops, iova_start + size + 42)
+		if (pgtbl->ops->iova_to_phys(pgtbl, iova_start + size + 42)
 		    != (size + 42))
 			return __FAIL(ops);
 		i++;
@@ -817,17 +815,17 @@ static int __init arm_v7s_do_selftests(void)
 	while (i != BITS_PER_LONG) {
 		size = 1UL << i;
 
-		if (ops->unmap(ops, iova, size) != size)
+		if (pgtbl->ops->unmap(pgtbl, iova, size) != size)
 			return __FAIL(ops);
 
-		if (ops->iova_to_phys(ops, iova + 42))
+		if (pgtbl->ops->iova_to_phys(pgtbl, iova + 42))
 			return __FAIL(ops);
 
 		/* Remap full block */
-		if (ops->map(ops, iova, iova, size, IOMMU_WRITE))
+		if (pgtbl->ops->map(pgtbl, iova, iova, size, IOMMU_WRITE))
 			return __FAIL(ops);
 
-		if (ops->iova_to_phys(ops, iova + 42) != (iova + 42))
+		if (pgtbl->ops->iova_to_phys(pgtbl, iova + 42) != (iova + 42))
 			return __FAIL(ops);
 
 		iova += SZ_16M;
@@ -835,7 +833,7 @@ static int __init arm_v7s_do_selftests(void)
 		i = find_next_bit(&cfg.pgsize_bitmap, BITS_PER_LONG, i);
 	}
 
-	free_io_pgtable_ops(ops);
+	free_io_pgtable(pgtbl);
 
 	selftest_running = false;
 
diff --git a/drivers/iommu/io-pgtable-arm.c b/drivers/iommu/io-pgtable-arm.c
index f433b51..072fc99 100644
--- a/drivers/iommu/io-pgtable-arm.c
+++ b/drivers/iommu/io-pgtable-arm.c
@@ -39,9 +39,6 @@
 #define io_pgtable_to_data(x)						\
 	container_of((x), struct arm_lpae_io_pgtable, iop)
 
-#define io_pgtable_ops_to_data(x)					\
-	io_pgtable_to_data(io_pgtable_ops_to_pgtable(x))
-
 /*
  * For consistency with the architecture, we always consider
  * ARM_LPAE_MAX_LEVELS levels, with the walk starting at level n >=0
@@ -376,10 +373,10 @@ static arm_lpae_iopte arm_lpae_prot_to_pte(struct arm_lpae_io_pgtable *data,
 	return pte;
 }
 
-static int arm_lpae_map(struct io_pgtable_ops *ops, unsigned long iova,
+static int arm_lpae_map(struct io_pgtable *iop, unsigned long iova,
 			phys_addr_t paddr, size_t size, int iommu_prot)
 {
-	struct arm_lpae_io_pgtable *data = io_pgtable_ops_to_data(ops);
+	struct arm_lpae_io_pgtable *data = io_pgtable_to_data(iop);
 	arm_lpae_iopte *ptep = data->pgd;
 	int ret, lvl = ARM_LPAE_START_LVL(data);
 	arm_lpae_iopte prot;
@@ -525,11 +522,11 @@ static int __arm_lpae_unmap(struct arm_lpae_io_pgtable *data,
 	return __arm_lpae_unmap(data, iova, size, lvl + 1, ptep);
 }
 
-static int arm_lpae_unmap(struct io_pgtable_ops *ops, unsigned long iova,
+static int arm_lpae_unmap(struct io_pgtable *iop, unsigned long iova,
 			  size_t size)
 {
 	size_t unmapped;
-	struct arm_lpae_io_pgtable *data = io_pgtable_ops_to_data(ops);
+	struct arm_lpae_io_pgtable *data = io_pgtable_to_data(iop);
 	arm_lpae_iopte *ptep = data->pgd;
 	int lvl = ARM_LPAE_START_LVL(data);
 
@@ -540,10 +537,10 @@ static int arm_lpae_unmap(struct io_pgtable_ops *ops, unsigned long iova,
 	return unmapped;
 }
 
-static phys_addr_t arm_lpae_iova_to_phys(struct io_pgtable_ops *ops,
+static phys_addr_t arm_lpae_iova_to_phys(struct io_pgtable *iop,
 					 unsigned long iova)
 {
-	struct arm_lpae_io_pgtable *data = io_pgtable_ops_to_data(ops);
+	struct arm_lpae_io_pgtable *data = io_pgtable_to_data(iop);
 	arm_lpae_iopte pte, *ptep = data->pgd;
 	int lvl = ARM_LPAE_START_LVL(data);
 
@@ -610,6 +607,12 @@ static void arm_lpae_restrict_pgsizes(struct io_pgtable_cfg *cfg)
 	}
 }
 
+static struct io_pgtable_ops arm_lpae_io_pgtable_ops = {
+	.map		= arm_lpae_map,
+	.unmap		= arm_lpae_unmap,
+	.iova_to_phys	= arm_lpae_iova_to_phys,
+};
+
 static struct arm_lpae_io_pgtable *
 arm_lpae_alloc_pgtable(struct io_pgtable_cfg *cfg)
 {
@@ -646,11 +649,7 @@ arm_lpae_alloc_pgtable(struct io_pgtable_cfg *cfg)
 	pgd_bits = va_bits - (data->bits_per_level * (data->levels - 1));
 	data->pgd_size = 1UL << (pgd_bits + ilog2(sizeof(arm_lpae_iopte)));
 
-	data->iop.ops = (struct io_pgtable_ops) {
-		.map		= arm_lpae_map,
-		.unmap		= arm_lpae_unmap,
-		.iova_to_phys	= arm_lpae_iova_to_phys,
-	};
+	data->iop.ops = &arm_lpae_io_pgtable_ops;
 
 	return data;
 }
@@ -911,15 +910,15 @@ static void dummy_tlb_sync(void *cookie)
 	WARN_ON(cookie != cfg_cookie);
 }
 
-static struct iommu_gather_ops dummy_tlb_ops __initdata = {
+static struct iommu_gather_ops dummy_tlb_ops __initconst = {
 	.tlb_flush_all	= dummy_tlb_flush_all,
 	.tlb_add_flush	= dummy_tlb_add_flush,
 	.tlb_sync	= dummy_tlb_sync,
 };
 
-static void __init arm_lpae_dump_ops(struct io_pgtable_ops *ops)
+static void __init arm_lpae_dump_ops(struct io_pgtable *iop)
 {
-	struct arm_lpae_io_pgtable *data = io_pgtable_ops_to_data(ops);
+	struct arm_lpae_io_pgtable *data = io_pgtable_to_data(iop);
 	struct io_pgtable_cfg *cfg = &data->iop.cfg;
 
 	pr_err("cfg: pgsize_bitmap 0x%lx, ias %u-bit\n",
@@ -929,9 +928,9 @@ static void __init arm_lpae_dump_ops(struct io_pgtable_ops *ops)
 		data->bits_per_level, data->pgd);
 }
 
-#define __FAIL(ops, i)	({						\
+#define __FAIL(iop, i)	({						\
 		WARN(1, "selftest: test failed for fmt idx %d\n", (i));	\
-		arm_lpae_dump_ops(ops);					\
+		arm_lpae_dump_ops(iop);					\
 		selftest_running = false;				\
 		-EFAULT;						\
 })
@@ -946,30 +945,32 @@ static int __init arm_lpae_run_tests(struct io_pgtable_cfg *cfg)
 	int i, j;
 	unsigned long iova;
 	size_t size;
-	struct io_pgtable_ops *ops;
+	struct io_pgtable *iop;
+	const struct io_pgtable_ops *ops;
 
 	selftest_running = true;
 
 	for (i = 0; i < ARRAY_SIZE(fmts); ++i) {
 		cfg_cookie = cfg;
-		ops = alloc_io_pgtable_ops(fmts[i], cfg, cfg);
-		if (!ops) {
+		iop = alloc_io_pgtable(fmts[i], cfg, cfg);
+		if (!iop) {
 			pr_err("selftest: failed to allocate io pgtable ops\n");
 			return -ENOMEM;
 		}
+		ops = iop->ops;
 
 		/*
 		 * Initial sanity checks.
 		 * Empty page tables shouldn't provide any translations.
 		 */
-		if (ops->iova_to_phys(ops, 42))
-			return __FAIL(ops, i);
+		if (ops->iova_to_phys(iop, 42))
+			return __FAIL(iop, i);
 
-		if (ops->iova_to_phys(ops, SZ_1G + 42))
-			return __FAIL(ops, i);
+		if (ops->iova_to_phys(iop, SZ_1G + 42))
+			return __FAIL(iop, i);
 
-		if (ops->iova_to_phys(ops, SZ_2G + 42))
-			return __FAIL(ops, i);
+		if (ops->iova_to_phys(iop, SZ_2G + 42))
+			return __FAIL(iop, i);
 
 		/*
 		 * Distinct mappings of different granule sizes.
@@ -979,19 +980,19 @@ static int __init arm_lpae_run_tests(struct io_pgtable_cfg *cfg)
 		while (j != BITS_PER_LONG) {
 			size = 1UL << j;
 
-			if (ops->map(ops, iova, iova, size, IOMMU_READ |
+			if (ops->map(iop, iova, iova, size, IOMMU_READ |
 							    IOMMU_WRITE |
 							    IOMMU_NOEXEC |
 							    IOMMU_CACHE))
-				return __FAIL(ops, i);
+				return __FAIL(iop, i);
 
 			/* Overlapping mappings */
-			if (!ops->map(ops, iova, iova + size, size,
+			if (!ops->map(iop, iova, iova + size, size,
 				      IOMMU_READ | IOMMU_NOEXEC))
-				return __FAIL(ops, i);
+				return __FAIL(iop, i);
 
-			if (ops->iova_to_phys(ops, iova + 42) != (iova + 42))
-				return __FAIL(ops, i);
+			if (ops->iova_to_phys(iop, iova + 42) != (iova + 42))
+				return __FAIL(iop, i);
 
 			iova += SZ_1G;
 			j++;
@@ -1000,15 +1001,15 @@ static int __init arm_lpae_run_tests(struct io_pgtable_cfg *cfg)
 
 		/* Partial unmap */
 		size = 1UL << __ffs(cfg->pgsize_bitmap);
-		if (ops->unmap(ops, SZ_1G + size, size) != size)
-			return __FAIL(ops, i);
+		if (ops->unmap(iop, SZ_1G + size, size) != size)
+			return __FAIL(iop, i);
 
 		/* Remap of partial unmap */
-		if (ops->map(ops, SZ_1G + size, size, size, IOMMU_READ))
-			return __FAIL(ops, i);
+		if (ops->map(iop, SZ_1G + size, size, size, IOMMU_READ))
+			return __FAIL(iop, i);
 
-		if (ops->iova_to_phys(ops, SZ_1G + size + 42) != (size + 42))
-			return __FAIL(ops, i);
+		if (ops->iova_to_phys(iop, SZ_1G + size + 42) != (size + 42))
+			return __FAIL(iop, i);
 
 		/* Full unmap */
 		iova = 0;
@@ -1016,25 +1017,25 @@ static int __init arm_lpae_run_tests(struct io_pgtable_cfg *cfg)
 		while (j != BITS_PER_LONG) {
 			size = 1UL << j;
 
-			if (ops->unmap(ops, iova, size) != size)
-				return __FAIL(ops, i);
+			if (ops->unmap(iop, iova, size) != size)
+				return __FAIL(iop, i);
 
-			if (ops->iova_to_phys(ops, iova + 42))
-				return __FAIL(ops, i);
+			if (ops->iova_to_phys(iop, iova + 42))
+				return __FAIL(iop, i);
 
 			/* Remap full block */
-			if (ops->map(ops, iova, iova, size, IOMMU_WRITE))
-				return __FAIL(ops, i);
+			if (ops->map(iop, iova, iova, size, IOMMU_WRITE))
+				return __FAIL(iop, i);
 
-			if (ops->iova_to_phys(ops, iova + 42) != (iova + 42))
-				return __FAIL(ops, i);
+			if (ops->iova_to_phys(iop, iova + 42) != (iova + 42))
+				return __FAIL(iop, i);
 
 			iova += SZ_1G;
 			j++;
 			j = find_next_bit(&cfg->pgsize_bitmap, BITS_PER_LONG, j);
 		}
 
-		free_io_pgtable_ops(ops);
+		free_io_pgtable(iop);
 	}
 
 	selftest_running = false;
diff --git a/drivers/iommu/io-pgtable.c b/drivers/iommu/io-pgtable.c
index 876f6a7..cb29f0f 100644
--- a/drivers/iommu/io-pgtable.c
+++ b/drivers/iommu/io-pgtable.c
@@ -38,7 +38,7 @@ io_pgtable_init_table[IO_PGTABLE_NUM_FMTS] =
 #endif
 };
 
-struct io_pgtable_ops *alloc_io_pgtable_ops(enum io_pgtable_fmt fmt,
+struct io_pgtable *alloc_io_pgtable(enum io_pgtable_fmt fmt,
 					    struct io_pgtable_cfg *cfg,
 					    void *cookie)
 {
@@ -60,21 +60,18 @@ struct io_pgtable_ops *alloc_io_pgtable_ops(enum io_pgtable_fmt fmt,
 	iop->cookie	= cookie;
 	iop->cfg	= *cfg;
 
-	return &iop->ops;
+	return iop;
 }
 
 /*
  * It is the IOMMU driver's responsibility to ensure that the page table
  * is no longer accessible to the walker by this point.
  */
-void free_io_pgtable_ops(struct io_pgtable_ops *ops)
+void free_io_pgtable(struct io_pgtable *iop)
 {
-	struct io_pgtable *iop;
-
-	if (!ops)
+	if (!iop)
 		return;
 
-	iop = container_of(ops, struct io_pgtable, ops);
 	io_pgtable_tlb_flush_all(iop);
 	io_pgtable_init_table[iop->fmt]->free(iop);
 }
diff --git a/drivers/iommu/io-pgtable.h b/drivers/iommu/io-pgtable.h
index d4f5027..0265cd8 100644
--- a/drivers/iommu/io-pgtable.h
+++ b/drivers/iommu/io-pgtable.h
@@ -103,17 +103,18 @@ struct io_pgtable_cfg {
  * These functions map directly onto the iommu_ops member functions with
  * the same names.
  */
+struct io_pgtable;
 struct io_pgtable_ops {
-	int (*map)(struct io_pgtable_ops *ops, unsigned long iova,
+	int (*map)(struct io_pgtable *iop, unsigned long iova,
 		   phys_addr_t paddr, size_t size, int prot);
-	int (*unmap)(struct io_pgtable_ops *ops, unsigned long iova,
+	int (*unmap)(struct io_pgtable *iop, unsigned long iova,
 		     size_t size);
-	phys_addr_t (*iova_to_phys)(struct io_pgtable_ops *ops,
+	phys_addr_t (*iova_to_phys)(struct io_pgtable *iop,
 				    unsigned long iova);
 };
 
 /**
- * alloc_io_pgtable_ops() - Allocate a page table allocator for use by an IOMMU.
+ * alloc_io_pgtable() - Allocate a page table allocator for use by an IOMMU.
  *
  * @fmt:    The page table format.
  * @cfg:    The page table configuration. This will be modified to represent
@@ -122,9 +123,9 @@ struct io_pgtable_ops {
  * @cookie: An opaque token provided by the IOMMU driver and passed back to
  *          the callback routines in cfg->tlb.
  */
-struct io_pgtable_ops *alloc_io_pgtable_ops(enum io_pgtable_fmt fmt,
-					    struct io_pgtable_cfg *cfg,
-					    void *cookie);
+struct io_pgtable *alloc_io_pgtable(enum io_pgtable_fmt fmt,
+				    struct io_pgtable_cfg *cfg,
+				    void *cookie);
 
 /**
  * free_io_pgtable_ops() - Free an io_pgtable_ops structure. The caller
@@ -133,7 +134,7 @@ struct io_pgtable_ops *alloc_io_pgtable_ops(enum io_pgtable_fmt fmt,
  *
  * @ops: The ops returned from alloc_io_pgtable_ops.
  */
-void free_io_pgtable_ops(struct io_pgtable_ops *ops);
+void free_io_pgtable(struct io_pgtable *iop);
 
 
 /*
@@ -155,11 +156,9 @@ struct io_pgtable {
 	void			*cookie;
 	bool			tlb_sync_pending;
 	struct io_pgtable_cfg	cfg;
-	struct io_pgtable_ops	ops;
+	const struct io_pgtable_ops	*ops;
 };
 
-#define io_pgtable_ops_to_pgtable(x) container_of((x), struct io_pgtable, ops)
-
 static inline void io_pgtable_tlb_flush_all(struct io_pgtable *iop)
 {
 	iop->cfg.tlb->tlb_flush_all(iop->cookie);
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index b9df141..7c67a2d 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -957,7 +957,7 @@ static int iommu_bus_notifier(struct notifier_block *nb,
 static int iommu_bus_init(struct bus_type *bus, const struct iommu_ops *ops)
 {
 	int err;
-	struct notifier_block *nb;
+	notifier_block_no_const *nb;
 	struct iommu_callback_data cb = {
 		.ops = ops,
 	};
diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c
index 2fdbac6..7095311 100644
--- a/drivers/iommu/ipmmu-vmsa.c
+++ b/drivers/iommu/ipmmu-vmsa.c
@@ -41,7 +41,7 @@ struct ipmmu_vmsa_domain {
 	struct iommu_domain io_domain;
 
 	struct io_pgtable_cfg cfg;
-	struct io_pgtable_ops *iop;
+	struct io_pgtable *iop;
 
 	unsigned int context_id;
 	spinlock_t lock;			/* Protects mappings */
@@ -319,8 +319,7 @@ static int ipmmu_domain_init_context(struct ipmmu_vmsa_domain *domain)
 	 */
 	domain->cfg.iommu_dev = domain->mmu->dev;
 
-	domain->iop = alloc_io_pgtable_ops(ARM_32_LPAE_S1, &domain->cfg,
-					   domain);
+	domain->iop = alloc_io_pgtable(ARM_32_LPAE_S1, &domain->cfg, domain);
 	if (!domain->iop)
 		return -EINVAL;
 
@@ -478,7 +477,7 @@ static void ipmmu_domain_free(struct iommu_domain *io_domain)
 	 * been detached.
 	 */
 	ipmmu_domain_destroy_context(domain);
-	free_io_pgtable_ops(domain->iop);
+	free_io_pgtable(domain->iop);
 	kfree(domain);
 }
 
@@ -547,7 +546,7 @@ static int ipmmu_map(struct iommu_domain *io_domain, unsigned long iova,
 	if (!domain)
 		return -ENODEV;
 
-	return domain->iop->map(domain->iop, iova, paddr, size, prot);
+	return domain->iop->ops->map(domain->iop, iova, paddr, size, prot);
 }
 
 static size_t ipmmu_unmap(struct iommu_domain *io_domain, unsigned long iova,
@@ -555,7 +554,7 @@ static size_t ipmmu_unmap(struct iommu_domain *io_domain, unsigned long iova,
 {
 	struct ipmmu_vmsa_domain *domain = to_vmsa_domain(io_domain);
 
-	return domain->iop->unmap(domain->iop, iova, size);
+	return domain->iop->ops->unmap(domain->iop, iova, size);
 }
 
 static phys_addr_t ipmmu_iova_to_phys(struct iommu_domain *io_domain,
@@ -565,7 +564,7 @@ static phys_addr_t ipmmu_iova_to_phys(struct iommu_domain *io_domain,
 
 	/* TODO: Is locking needed ? */
 
-	return domain->iop->iova_to_phys(domain->iop, iova);
+	return domain->iop->ops->iova_to_phys(domain->iop, iova);
 }
 
 static int ipmmu_find_utlbs(struct ipmmu_vmsa_device *mmu, struct device *dev,
diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c
index 8adaaea..99dab8e 100644
--- a/drivers/iommu/irq_remapping.c
+++ b/drivers/iommu/irq_remapping.c
@@ -153,7 +153,7 @@ int __init irq_remap_enable_fault_handling(void)
 void panic_if_irq_remap(const char *msg)
 {
 	if (irq_remapping_enabled)
-		panic(msg);
+		panic("%s", msg);
 }
 
 void ir_ack_apic_edge(struct irq_data *data)
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 929a66a..4e61ad0 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -110,7 +110,7 @@ struct mtk_iommu_domain {
 	spinlock_t			pgtlock; /* lock for page table */
 
 	struct io_pgtable_cfg		cfg;
-	struct io_pgtable_ops		*iop;
+	struct io_pgtable		*iop;
 
 	struct iommu_domain		domain;
 };
@@ -257,14 +257,16 @@ static int mtk_iommu_domain_finalise(struct mtk_iommu_data *data)
 		.iommu_dev = data->dev,
 	};
 
-	dom->iop = alloc_io_pgtable_ops(ARM_V7S, &dom->cfg, data);
+	dom->iop = alloc_io_pgtable(ARM_V7S, &dom->cfg, data);
 	if (!dom->iop) {
 		dev_err(data->dev, "Failed to alloc io pgtable\n");
 		return -EINVAL;
 	}
 
 	/* Update our support page sizes bitmap */
-	mtk_iommu_ops.pgsize_bitmap = dom->cfg.pgsize_bitmap;
+	pax_open_kernel();
+	const_cast(mtk_iommu_ops.pgsize_bitmap) = dom->cfg.pgsize_bitmap;
+	pax_close_kernel();
 
 	writel(data->m4u_dom->cfg.arm_v7s_cfg.ttbr[0],
 	       data->base + REG_MMU_PT_BASE_ADDR);
@@ -350,7 +352,7 @@ static int mtk_iommu_map(struct iommu_domain *domain, unsigned long iova,
 	int ret;
 
 	spin_lock_irqsave(&dom->pgtlock, flags);
-	ret = dom->iop->map(dom->iop, iova, paddr, size, prot);
+	ret = dom->iop->ops->map(dom->iop, iova, paddr, size, prot);
 	spin_unlock_irqrestore(&dom->pgtlock, flags);
 
 	return ret;
@@ -364,7 +366,7 @@ static size_t mtk_iommu_unmap(struct iommu_domain *domain,
 	size_t unmapsz;
 
 	spin_lock_irqsave(&dom->pgtlock, flags);
-	unmapsz = dom->iop->unmap(dom->iop, iova, size);
+	unmapsz = dom->iop->ops->unmap(dom->iop, iova, size);
 	spin_unlock_irqrestore(&dom->pgtlock, flags);
 
 	return unmapsz;
@@ -378,7 +380,7 @@ static phys_addr_t mtk_iommu_iova_to_phys(struct iommu_domain *domain,
 	phys_addr_t pa;
 
 	spin_lock_irqsave(&dom->pgtlock, flags);
-	pa = dom->iop->iova_to_phys(dom->iop, iova);
+	pa = dom->iop->ops->iova_to_phys(dom->iop, iova);
 	spin_unlock_irqrestore(&dom->pgtlock, flags);
 
 	return pa;
@@ -654,7 +656,7 @@ static int mtk_iommu_remove(struct platform_device *pdev)
 	if (iommu_present(&platform_bus_type))
 		bus_set_iommu(&platform_bus_type, NULL);
 
-	free_io_pgtable_ops(data->m4u_dom->iop);
+	free_io_pgtable(data->m4u_dom->iop);
 	clk_disable_unprepare(data->bclk);
 	devm_free_irq(&pdev->dev, data->irq, data);
 	component_master_del(&pdev->dev, &mtk_iommu_com_ops);
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index 5c4da58..54606f1 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -387,7 +387,7 @@ static void gic_handle_cascade_irq(struct irq_desc *desc)
 	chained_irq_exit(chip, desc);
 }
 
-static struct irq_chip gic_chip = {
+static irq_chip_no_const gic_chip __read_only = {
 	.irq_mask		= gic_mask_irq,
 	.irq_unmask		= gic_unmask_irq,
 	.irq_eoi		= gic_eoi_irq,
diff --git a/drivers/irqchip/irq-i8259.c b/drivers/irqchip/irq-i8259.c
index 6b304eb..6e3a1413 100644
--- a/drivers/irqchip/irq-i8259.c
+++ b/drivers/irqchip/irq-i8259.c
@@ -204,7 +204,7 @@ spurious_8259A_irq:
 			printk(KERN_DEBUG "spurious 8259A interrupt: IRQ%d.\n", irq);
 			spurious_irq_mask |= irqmask;
 		}
-		atomic_inc(&irq_err_count);
+		atomic_inc_unchecked(&irq_err_count);
 		/*
 		 * Theoretically we do not have to handle this IRQ,
 		 * but in Linux this does not cause problems and is
diff --git a/drivers/irqchip/irq-mmp.c b/drivers/irqchip/irq-mmp.c
index 013fc96..36a9a97 100644
--- a/drivers/irqchip/irq-mmp.c
+++ b/drivers/irqchip/irq-mmp.c
@@ -122,7 +122,7 @@ static void icu_unmask_irq(struct irq_data *d)
 	}
 }
 
-struct irq_chip icu_irq_chip = {
+irq_chip_no_const icu_irq_chip __read_only = {
 	.name		= "icu_irq",
 	.irq_mask	= icu_mask_irq,
 	.irq_mask_ack	= icu_mask_ack_irq,
diff --git a/drivers/irqchip/irq-renesas-intc-irqpin.c b/drivers/irqchip/irq-renesas-intc-irqpin.c
index 713177d..3849ddd 100644
--- a/drivers/irqchip/irq-renesas-intc-irqpin.c
+++ b/drivers/irqchip/irq-renesas-intc-irqpin.c
@@ -396,7 +396,7 @@ static int intc_irqpin_probe(struct platform_device *pdev)
 	struct intc_irqpin_iomem *i;
 	struct resource *io[INTC_IRQPIN_REG_NR];
 	struct resource *irq;
-	struct irq_chip *irq_chip;
+	irq_chip_no_const *irq_chip;
 	void (*enable_fn)(struct irq_data *d);
 	void (*disable_fn)(struct irq_data *d);
 	const char *name = dev_name(dev);
diff --git a/drivers/irqchip/irq-ts4800.c b/drivers/irqchip/irq-ts4800.c
index 2325fb3..fca7529 100644
--- a/drivers/irqchip/irq-ts4800.c
+++ b/drivers/irqchip/irq-ts4800.c
@@ -93,7 +93,7 @@ static int ts4800_ic_probe(struct platform_device *pdev)
 {
 	struct device_node *node = pdev->dev.of_node;
 	struct ts4800_irq_data *data;
-	struct irq_chip *irq_chip;
+	irq_chip_no_const *irq_chip;
 	struct resource *res;
 	int parent_irq;
 
diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c
index 6a2df32..dc962f1 100644
--- a/drivers/isdn/capi/capi.c
+++ b/drivers/isdn/capi/capi.c
@@ -81,8 +81,8 @@ struct capiminor {
 
 	struct capi20_appl	*ap;
 	u32			ncci;
-	atomic_t		datahandle;
-	atomic_t		msgid;
+	atomic_unchecked_t	datahandle;
+	atomic_unchecked_t	msgid;
 
 	struct tty_port port;
 	int                ttyinstop;
@@ -391,7 +391,7 @@ gen_data_b3_resp_for(struct capiminor *mp, struct sk_buff *skb)
 		capimsg_setu16(s, 2, mp->ap->applid);
 		capimsg_setu8 (s, 4, CAPI_DATA_B3);
 		capimsg_setu8 (s, 5, CAPI_RESP);
-		capimsg_setu16(s, 6, atomic_inc_return(&mp->msgid));
+		capimsg_setu16(s, 6, atomic_inc_return_unchecked(&mp->msgid));
 		capimsg_setu32(s, 8, mp->ncci);
 		capimsg_setu16(s, 12, datahandle);
 	}
@@ -512,14 +512,14 @@ static void handle_minor_send(struct capiminor *mp)
 		mp->outbytes -= len;
 		spin_unlock_bh(&mp->outlock);
 
-		datahandle = atomic_inc_return(&mp->datahandle);
+		datahandle = atomic_inc_return_unchecked(&mp->datahandle);
 		skb_push(skb, CAPI_DATA_B3_REQ_LEN);
 		memset(skb->data, 0, CAPI_DATA_B3_REQ_LEN);
 		capimsg_setu16(skb->data, 0, CAPI_DATA_B3_REQ_LEN);
 		capimsg_setu16(skb->data, 2, mp->ap->applid);
 		capimsg_setu8 (skb->data, 4, CAPI_DATA_B3);
 		capimsg_setu8 (skb->data, 5, CAPI_REQ);
-		capimsg_setu16(skb->data, 6, atomic_inc_return(&mp->msgid));
+		capimsg_setu16(skb->data, 6, atomic_inc_return_unchecked(&mp->msgid));
 		capimsg_setu32(skb->data, 8, mp->ncci);	/* NCCI */
 		capimsg_setu32(skb->data, 12, (u32)(long)skb->data);/* Data32 */
 		capimsg_setu16(skb->data, 16, len);	/* Data length */
diff --git a/drivers/isdn/gigaset/bas-gigaset.c b/drivers/isdn/gigaset/bas-gigaset.c
index aecec6d..11e13c5 100644
--- a/drivers/isdn/gigaset/bas-gigaset.c
+++ b/drivers/isdn/gigaset/bas-gigaset.c
@@ -2565,22 +2565,22 @@ static int gigaset_post_reset(struct usb_interface *intf)
 
 
 static const struct gigaset_ops gigops = {
-	gigaset_write_cmd,
-	gigaset_write_room,
-	gigaset_chars_in_buffer,
-	gigaset_brkchars,
-	gigaset_init_bchannel,
-	gigaset_close_bchannel,
-	gigaset_initbcshw,
-	gigaset_freebcshw,
-	gigaset_reinitbcshw,
-	gigaset_initcshw,
-	gigaset_freecshw,
-	gigaset_set_modem_ctrl,
-	gigaset_baud_rate,
-	gigaset_set_line_ctrl,
-	gigaset_isoc_send_skb,
-	gigaset_isoc_input,
+	.write_cmd = gigaset_write_cmd,
+	.write_room = gigaset_write_room,
+	.chars_in_buffer = gigaset_chars_in_buffer,
+	.brkchars = gigaset_brkchars,
+	.init_bchannel = gigaset_init_bchannel,
+	.close_bchannel = gigaset_close_bchannel,
+	.initbcshw = gigaset_initbcshw,
+	.freebcshw = gigaset_freebcshw,
+	.reinitbcshw = gigaset_reinitbcshw,
+	.initcshw = gigaset_initcshw,
+	.freecshw = gigaset_freecshw,
+	.set_modem_ctrl = gigaset_set_modem_ctrl,
+	.baud_rate = gigaset_baud_rate,
+	.set_line_ctrl = gigaset_set_line_ctrl,
+	.send_skb = gigaset_isoc_send_skb,
+	.handle_input = gigaset_isoc_input,
 };
 
 /* bas_gigaset_init
diff --git a/drivers/isdn/gigaset/interface.c b/drivers/isdn/gigaset/interface.c
index 600c79b..3752bab 100644
--- a/drivers/isdn/gigaset/interface.c
+++ b/drivers/isdn/gigaset/interface.c
@@ -130,9 +130,9 @@ static int if_open(struct tty_struct *tty, struct file *filp)
 	}
 	tty->driver_data = cs;
 
-	++cs->port.count;
+	atomic_inc(&cs->port.count);
 
-	if (cs->port.count == 1) {
+	if (atomic_read(&cs->port.count) == 1) {
 		tty_port_tty_set(&cs->port, tty);
 		cs->port.low_latency = 1;
 	}
@@ -156,9 +156,9 @@ static void if_close(struct tty_struct *tty, struct file *filp)
 
 	if (!cs->connected)
 		gig_dbg(DEBUG_IF, "not connected");	/* nothing to do */
-	else if (!cs->port.count)
+	else if (!atomic_read(&cs->port.count))
 		dev_warn(cs->dev, "%s: device not opened\n", __func__);
-	else if (!--cs->port.count)
+	else if (!atomic_dec_return(&cs->port.count))
 		tty_port_tty_set(&cs->port, NULL);
 
 	mutex_unlock(&cs->mutex);
diff --git a/drivers/isdn/gigaset/ser-gigaset.c b/drivers/isdn/gigaset/ser-gigaset.c
index d1f8ab9..c0412f2 100644
--- a/drivers/isdn/gigaset/ser-gigaset.c
+++ b/drivers/isdn/gigaset/ser-gigaset.c
@@ -445,22 +445,22 @@ static int gigaset_set_line_ctrl(struct cardstate *cs, unsigned cflag)
 }
 
 static const struct gigaset_ops ops = {
-	gigaset_write_cmd,
-	gigaset_write_room,
-	gigaset_chars_in_buffer,
-	gigaset_brkchars,
-	gigaset_init_bchannel,
-	gigaset_close_bchannel,
-	gigaset_initbcshw,
-	gigaset_freebcshw,
-	gigaset_reinitbcshw,
-	gigaset_initcshw,
-	gigaset_freecshw,
-	gigaset_set_modem_ctrl,
-	gigaset_baud_rate,
-	gigaset_set_line_ctrl,
-	gigaset_m10x_send_skb,	/* asyncdata.c */
-	gigaset_m10x_input,	/* asyncdata.c */
+	.write_cmd = gigaset_write_cmd,
+	.write_room = gigaset_write_room,
+	.chars_in_buffer = gigaset_chars_in_buffer,
+	.brkchars = gigaset_brkchars,
+	.init_bchannel = gigaset_init_bchannel,
+	.close_bchannel = gigaset_close_bchannel,
+	.initbcshw = gigaset_initbcshw,
+	.freebcshw = gigaset_freebcshw,
+	.reinitbcshw = gigaset_reinitbcshw,
+	.initcshw = gigaset_initcshw,
+	.freecshw = gigaset_freecshw,
+	.set_modem_ctrl = gigaset_set_modem_ctrl,
+	.baud_rate = gigaset_baud_rate,
+	.set_line_ctrl = gigaset_set_line_ctrl,
+	.send_skb = gigaset_m10x_send_skb,	/* asyncdata.c */
+	.handle_input = gigaset_m10x_input,	/* asyncdata.c */
 };
 
 
diff --git a/drivers/isdn/gigaset/usb-gigaset.c b/drivers/isdn/gigaset/usb-gigaset.c
index 5f306e2..ff14829 100644
--- a/drivers/isdn/gigaset/usb-gigaset.c
+++ b/drivers/isdn/gigaset/usb-gigaset.c
@@ -543,7 +543,7 @@ static int gigaset_brkchars(struct cardstate *cs, const unsigned char buf[6])
 	gigaset_dbg_buffer(DEBUG_USBREQ, "brkchars", 6, buf);
 	memcpy(cs->hw.usb->bchars, buf, 6);
 	return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x19, 0x41,
-			       0, 0, &buf, 6, 2000);
+			       0, 0, cs->hw.usb->bchars, 6, 2000);
 }
 
 static void gigaset_freebcshw(struct bc_state *bcs)
@@ -862,22 +862,22 @@ static int gigaset_pre_reset(struct usb_interface *intf)
 }
 
 static const struct gigaset_ops ops = {
-	gigaset_write_cmd,
-	gigaset_write_room,
-	gigaset_chars_in_buffer,
-	gigaset_brkchars,
-	gigaset_init_bchannel,
-	gigaset_close_bchannel,
-	gigaset_initbcshw,
-	gigaset_freebcshw,
-	gigaset_reinitbcshw,
-	gigaset_initcshw,
-	gigaset_freecshw,
-	gigaset_set_modem_ctrl,
-	gigaset_baud_rate,
-	gigaset_set_line_ctrl,
-	gigaset_m10x_send_skb,
-	gigaset_m10x_input,
+	.write_cmd = gigaset_write_cmd,
+	.write_room = gigaset_write_room,
+	.chars_in_buffer = gigaset_chars_in_buffer,
+	.brkchars = gigaset_brkchars,
+	.init_bchannel = gigaset_init_bchannel,
+	.close_bchannel = gigaset_close_bchannel,
+	.initbcshw = gigaset_initbcshw,
+	.freebcshw = gigaset_freebcshw,
+	.reinitbcshw = gigaset_reinitbcshw,
+	.initcshw = gigaset_initcshw,
+	.freecshw = gigaset_freecshw,
+	.set_modem_ctrl = gigaset_set_modem_ctrl,
+	.baud_rate = gigaset_baud_rate,
+	.set_line_ctrl = gigaset_set_line_ctrl,
+	.send_skb = gigaset_m10x_send_skb,
+	.handle_input = gigaset_m10x_input,
 };
 
 /*
diff --git a/drivers/isdn/hardware/avm/b1.c b/drivers/isdn/hardware/avm/b1.c
index 4d9b195..455075c 100644
--- a/drivers/isdn/hardware/avm/b1.c
+++ b/drivers/isdn/hardware/avm/b1.c
@@ -176,7 +176,7 @@ int b1_load_t4file(avmcard *card, capiloaddatapart *t4file)
 	}
 	if (left) {
 		if (t4file->user) {
-			if (copy_from_user(buf, dp, left))
+			if (left > sizeof buf || copy_from_user(buf, dp, left))
 				return -EFAULT;
 		} else {
 			memcpy(buf, dp, left);
@@ -224,7 +224,7 @@ int b1_load_config(avmcard *card, capiloaddatapart *config)
 	}
 	if (left) {
 		if (config->user) {
-			if (copy_from_user(buf, dp, left))
+			if (left > sizeof buf || copy_from_user(buf, dp, left))
 				return -EFAULT;
 		} else {
 			memcpy(buf, dp, left);
diff --git a/drivers/isdn/hardware/eicon/capifunc.c b/drivers/isdn/hardware/eicon/capifunc.c
index 7a0bdbd..0a7b7db 100644
--- a/drivers/isdn/hardware/eicon/capifunc.c
+++ b/drivers/isdn/hardware/eicon/capifunc.c
@@ -57,7 +57,7 @@ static u16 diva_send_message(struct capi_ctr *,
 			     diva_os_message_buffer_s *);
 extern void diva_os_set_controller_struct(struct capi_ctr *);
 
-extern void DIVA_DIDD_Read(DESCRIPTOR *, int);
+extern void DIVA_DIDD_Read(void *, int);
 
 /*
  * debug
@@ -1032,7 +1032,6 @@ static void didd_callback(void *context, DESCRIPTOR *adapter, int removal)
 			stop_dbg();
 		} else {
 			memcpy(&MAdapter, adapter, sizeof(MAdapter));
-			dprintf = (DIVA_DI_PRINTF) MAdapter.request;
 			DbgRegister("CAPI20", DRIVERRELEASE_CAPI, DBG_DEFAULT);
 		}
 	} else if ((adapter->type > 0) && (adapter->type < 16)) {	/* IDI Adapter */
@@ -1060,7 +1059,6 @@ static int divacapi_connect_didd(void)
 	for (x = 0; x < MAX_DESCRIPTORS; x++) {
 		if (DIDD_Table[x].type == IDI_DIMAINT) {	/* MAINT found */
 			memcpy(&MAdapter, &DIDD_Table[x], sizeof(DAdapter));
-			dprintf = (DIVA_DI_PRINTF) MAdapter.request;
 			DbgRegister("CAPI20", DRIVERRELEASE_CAPI, DBG_DEFAULT);
 			break;
 		}
@@ -1072,7 +1070,7 @@ static int divacapi_connect_didd(void)
 			req.didd_notify.e.Req = 0;
 			req.didd_notify.e.Rc =
 				IDI_SYNC_REQ_DIDD_REGISTER_ADAPTER_NOTIFY;
-			req.didd_notify.info.callback = (void *)didd_callback;
+			req.didd_notify.info.callback = didd_callback;
 			req.didd_notify.info.context = NULL;
 			DAdapter.request((ENTITY *)&req);
 			if (req.didd_notify.e.Rc != 0xff) {
diff --git a/drivers/isdn/hardware/eicon/dadapter.c b/drivers/isdn/hardware/eicon/dadapter.c
index 5142099..642b7de 100644
--- a/drivers/isdn/hardware/eicon/dadapter.c
+++ b/drivers/isdn/hardware/eicon/dadapter.c
@@ -63,10 +63,14 @@ static void no_printf(unsigned char *format, ...)
    ------------------------------------------------------------------------- */
 #include "debuglib.c"
 
+static void IDI_CALL_LINK_T no_request(ENTITY IDI_CALL_ENTITY_T *i)
+{
+}
+
 static DESCRIPTOR  MAdapter =  {IDI_DIMAINT, /* Adapter Type */
 				0x00,     /* Channels */
 				0x0000,    /* Features */
-				(IDI_CALL)no_printf};
+				no_request};
 /* --------------------------------------------------------------------------
    DAdapter. Only IDI clients with buffer, that is huge enough to
    get all descriptors will receive information about DAdapter
@@ -100,6 +104,11 @@ void diva_didd_load_time_init(void) {
 void diva_didd_load_time_finit(void) {
 	diva_os_destroy_spin_lock(&didd_spin, "didd");
 }
+
+static void diva_didd_no_request(ENTITY *e)
+{
+}
+
 /* --------------------------------------------------------------------------
    Called in order to register new adapter in adapter array
    return adapter handle (> 0) on success
@@ -111,13 +120,12 @@ static int diva_didd_add_descriptor(DESCRIPTOR *d) {
 	if (d->type == IDI_DIMAINT) {
 		if (d->request) {
 			MAdapter.request = d->request;
-			dprintf = (DIVA_DI_PRINTF)d->request;
 			diva_notify_adapter_change(&MAdapter, 0); /* Inserted */
 			DBG_TRC(("DIMAINT registered, dprintf=%08x", d->request))
 				} else {
 			DBG_TRC(("DIMAINT removed"))
 				diva_notify_adapter_change(&MAdapter, 1); /* About to remove */
-			MAdapter.request = (IDI_CALL)no_printf;
+			MAdapter.request = diva_didd_no_request;
 			dprintf = no_printf;
 		}
 		return (NEW_MAX_DESCRIPTORS);
@@ -149,7 +157,7 @@ static int diva_didd_remove_descriptor(IDI_CALL request) {
 		DBG_TRC(("DIMAINT removed"))
 			dprintf = no_printf;
 		diva_notify_adapter_change(&MAdapter, 1); /* About to remove */
-		MAdapter.request = (IDI_CALL)no_printf;
+		MAdapter.request = diva_didd_no_request;
 		return (0);
 	}
 	for (i = 0; (Adapters && (i < NEW_MAX_DESCRIPTORS)); i++) {
@@ -222,7 +230,7 @@ static void IDI_CALL_LINK_T diva_dadapter_request(	\
 	case IDI_SYNC_REQ_DIDD_REGISTER_ADAPTER_NOTIFY: {
 		diva_didd_adapter_notify_t *pinfo = &syncReq->didd_notify.info;
 		pinfo->handle = diva_register_adapter_callback(		\
-			(didd_adapter_change_callback_t)pinfo->callback,
+			pinfo->callback,
 			(void IDI_CALL_ENTITY_T *)pinfo->context);
 		e->Rc = 0xff;
 	} break;
diff --git a/drivers/isdn/hardware/eicon/diddfunc.c b/drivers/isdn/hardware/eicon/diddfunc.c
index b0b23ed..e3d4e18 100644
--- a/drivers/isdn/hardware/eicon/diddfunc.c
+++ b/drivers/isdn/hardware/eicon/diddfunc.c
@@ -28,12 +28,12 @@ static DESCRIPTOR _DAdapter;
 /*
  * didd callback function
  */
-static void *didd_callback(void *context, DESCRIPTOR *adapter,
+static void didd_callback(void *context, DESCRIPTOR *adapter,
 			   int removal)
 {
 	if (adapter->type == IDI_DADAPTER) {
 		DBG_ERR(("Notification about IDI_DADAPTER change ! Oops."))
-			return (NULL);
+			return;
 	} else if (adapter->type == IDI_DIMAINT) {
 		if (removal) {
 			DbgDeregister();
@@ -41,7 +41,6 @@ static void *didd_callback(void *context, DESCRIPTOR *adapter,
 			DbgRegister("DIDD", DRIVERRELEASE_DIDD, DBG_DEFAULT);
 		}
 	}
-	return (NULL);
 }
 
 /*
@@ -63,7 +62,7 @@ static int __init connect_didd(void)
 			req.didd_notify.e.Req = 0;
 			req.didd_notify.e.Rc =
 				IDI_SYNC_REQ_DIDD_REGISTER_ADAPTER_NOTIFY;
-			req.didd_notify.info.callback = (void *)didd_callback;
+			req.didd_notify.info.callback = didd_callback;
 			req.didd_notify.info.context = NULL;
 			_DAdapter.request((ENTITY *)&req);
 			if (req.didd_notify.e.Rc != 0xff)
diff --git a/drivers/isdn/hardware/eicon/divasfunc.c b/drivers/isdn/hardware/eicon/divasfunc.c
index 4be5f88..1dbd479 100644
--- a/drivers/isdn/hardware/eicon/divasfunc.c
+++ b/drivers/isdn/hardware/eicon/divasfunc.c
@@ -130,12 +130,12 @@ static void stop_dbg(void)
 /*
  * didd callback function
  */
-static void *didd_callback(void *context, DESCRIPTOR *adapter,
+static void didd_callback(void *context, DESCRIPTOR *adapter,
 			   int removal)
 {
 	if (adapter->type == IDI_DADAPTER) {
 		DBG_ERR(("Notification about IDI_DADAPTER change ! Oops."));
-		return (NULL);
+		return;
 	}
 
 	if (adapter->type == IDI_DIMAINT) {
@@ -143,11 +143,9 @@ static void *didd_callback(void *context, DESCRIPTOR *adapter,
 			stop_dbg();
 		} else {
 			memcpy(&MAdapter, adapter, sizeof(MAdapter));
-			dprintf = (DIVA_DI_PRINTF) MAdapter.request;
 			start_dbg();
 		}
 	}
-	return (NULL);
 }
 
 /*
@@ -169,7 +167,7 @@ static int __init connect_didd(void)
 			req.didd_notify.e.Req = 0;
 			req.didd_notify.e.Rc =
 				IDI_SYNC_REQ_DIDD_REGISTER_ADAPTER_NOTIFY;
-			req.didd_notify.info.callback = (void *)didd_callback;
+			req.didd_notify.info.callback = didd_callback;
 			req.didd_notify.info.context = NULL;
 			DAdapter.request((ENTITY *)&req);
 			if (req.didd_notify.e.Rc != 0xff) {
@@ -179,7 +177,6 @@ static int __init connect_didd(void)
 			notify_handle = req.didd_notify.info.handle;
 		} else if (DIDD_Table[x].type == IDI_DIMAINT) {	/* MAINT found */
 			memcpy(&MAdapter, &DIDD_Table[x], sizeof(DAdapter));
-			dprintf = (DIVA_DI_PRINTF) MAdapter.request;
 			start_dbg();
 		}
 	}
diff --git a/drivers/isdn/hardware/eicon/divasync.h b/drivers/isdn/hardware/eicon/divasync.h
index dd6b53a..42661f6 100644
--- a/drivers/isdn/hardware/eicon/divasync.h
+++ b/drivers/isdn/hardware/eicon/divasync.h
@@ -138,7 +138,7 @@ typedef struct _diva_xdi_dma_descriptor_operation {
 #define IDI_SYNC_REQ_DIDD_GET_CFG_LIB_IFC           0x10
 typedef struct _diva_didd_adapter_notify {
 	dword handle; /* Notification handle */
-	void *callback;
+	didd_adapter_change_callback_t callback;
 	void *context;
 } diva_didd_adapter_notify_t;
 typedef struct _diva_didd_add_adapter {
diff --git a/drivers/isdn/hardware/eicon/idifunc.c b/drivers/isdn/hardware/eicon/idifunc.c
index fef6586..22353ff 100644
--- a/drivers/isdn/hardware/eicon/idifunc.c
+++ b/drivers/isdn/hardware/eicon/idifunc.c
@@ -154,18 +154,17 @@ rescan:
 /*
  * DIDD notify callback
  */
-static void *didd_callback(void *context, DESCRIPTOR *adapter,
+static void didd_callback(void *context, DESCRIPTOR *adapter,
 			   int removal)
 {
 	if (adapter->type == IDI_DADAPTER) {
 		DBG_ERR(("Notification about IDI_DADAPTER change ! Oops."));
-		return (NULL);
+		return;
 	} else if (adapter->type == IDI_DIMAINT) {
 		if (removal) {
 			stop_dbg();
 		} else {
 			memcpy(&MAdapter, adapter, sizeof(MAdapter));
-			dprintf = (DIVA_DI_PRINTF) MAdapter.request;
 			DbgRegister("User IDI", DRIVERRELEASE_IDI, DBG_DEFAULT);
 		}
 	} else if ((adapter->type > 0) && (adapter->type < 16)) {	/* IDI Adapter */
@@ -175,7 +174,6 @@ static void *didd_callback(void *context, DESCRIPTOR *adapter,
 			um_new_card(adapter);
 		}
 	}
-	return (NULL);
 }
 
 /*
@@ -197,7 +195,7 @@ static int __init connect_didd(void)
 			req.didd_notify.e.Req = 0;
 			req.didd_notify.e.Rc =
 				IDI_SYNC_REQ_DIDD_REGISTER_ADAPTER_NOTIFY;
-			req.didd_notify.info.callback = (void *)didd_callback;
+			req.didd_notify.info.callback = didd_callback;
 			req.didd_notify.info.context = NULL;
 			DAdapter.request((ENTITY *)&req);
 			if (req.didd_notify.e.Rc != 0xff) {
@@ -207,7 +205,6 @@ static int __init connect_didd(void)
 			notify_handle = req.didd_notify.info.handle;
 		} else if (DIDD_Table[x].type == IDI_DIMAINT) {	/* MAINT found */
 			memcpy(&MAdapter, &DIDD_Table[x], sizeof(DAdapter));
-			dprintf = (DIVA_DI_PRINTF) MAdapter.request;
 			DbgRegister("User IDI", DRIVERRELEASE_IDI, DBG_DEFAULT);
 		} else if ((DIDD_Table[x].type > 0)
 			   && (DIDD_Table[x].type < 16)) {	/* IDI Adapter found */
diff --git a/drivers/isdn/hardware/eicon/mntfunc.c b/drivers/isdn/hardware/eicon/mntfunc.c
index 1cd9aff..3775d52 100644
--- a/drivers/isdn/hardware/eicon/mntfunc.c
+++ b/drivers/isdn/hardware/eicon/mntfunc.c
@@ -26,8 +26,13 @@ extern void DIVA_DIDD_Read(void *, int);
 static dword notify_handle;
 static DESCRIPTOR DAdapter;
 static DESCRIPTOR MAdapter;
+
+static void didd_nothing(ENTITY IDI_CALL_ENTITY_T *e)
+{
+	diva_maint_prtComp((char *)e);
+}
 static DESCRIPTOR MaintDescriptor =
-{ IDI_DIMAINT, 0, 0, (IDI_CALL) diva_maint_prtComp };
+{ IDI_DIMAINT, 0, 0, didd_nothing };
 
 extern int diva_os_copy_to_user(void *os_handle, void __user *dst,
 				const void *src, int length);
@@ -44,7 +49,7 @@ static void no_printf(unsigned char *x, ...)
 /*
  *  DIDD callback function
  */
-static void *didd_callback(void *context, DESCRIPTOR *adapter,
+static void didd_callback(void *context, DESCRIPTOR *adapter,
 			   int removal)
 {
 	if (adapter->type == IDI_DADAPTER) {
@@ -56,7 +61,6 @@ static void *didd_callback(void *context, DESCRIPTOR *adapter,
 			dprintf = no_printf;
 		} else {
 			memcpy(&MAdapter, adapter, sizeof(MAdapter));
-			dprintf = (DIVA_DI_PRINTF) MAdapter.request;
 			DbgRegister("MAINT", DRIVERRELEASE_MNT, DBG_DEFAULT);
 		}
 	} else if ((adapter->type > 0) && (adapter->type < 16)) {
@@ -66,7 +70,6 @@ static void *didd_callback(void *context, DESCRIPTOR *adapter,
 			diva_mnt_add_xdi_adapter(adapter);
 		}
 	}
-	return (NULL);
 }
 
 /*
@@ -88,7 +91,7 @@ static int __init connect_didd(void)
 			req.didd_notify.e.Req = 0;
 			req.didd_notify.e.Rc =
 				IDI_SYNC_REQ_DIDD_REGISTER_ADAPTER_NOTIFY;
-			req.didd_notify.info.callback = (void *)didd_callback;
+			req.didd_notify.info.callback = didd_callback;
 			req.didd_notify.info.context = NULL;
 			DAdapter.request((ENTITY *)&req);
 			if (req.didd_notify.e.Rc != 0xff)
diff --git a/drivers/isdn/hardware/mISDN/avmfritz.c b/drivers/isdn/hardware/mISDN/avmfritz.c
index 292991c..f36f4cb 100644
--- a/drivers/isdn/hardware/mISDN/avmfritz.c
+++ b/drivers/isdn/hardware/mISDN/avmfritz.c
@@ -156,7 +156,7 @@ _set_debug(struct fritzcard *card)
 }
 
 static int
-set_debug(const char *val, struct kernel_param *kp)
+set_debug(const char *val, const struct kernel_param *kp)
 {
 	int ret;
 	struct fritzcard *card;
diff --git a/drivers/isdn/hardware/mISDN/hfcmulti.c b/drivers/isdn/hardware/mISDN/hfcmulti.c
index 28543d7..bd8cf91 100644
--- a/drivers/isdn/hardware/mISDN/hfcmulti.c
+++ b/drivers/isdn/hardware/mISDN/hfcmulti.c
@@ -2856,8 +2856,9 @@ irq_notforus:
  */
 
 static void
-hfcmulti_dbusy_timer(struct hfc_multi *hc)
+hfcmulti_dbusy_timer(unsigned long _hc)
 {
+	//struct hfc_multi *hc = (struct hfc_multi *)_hc;
 }
 
 
@@ -3878,7 +3879,7 @@ hfcmulti_initmode(struct dchannel *dch)
 		if (hc->dnum[pt]) {
 			mode_hfcmulti(hc, dch->slot, dch->dev.D.protocol,
 				      -1, 0, -1, 0);
-			dch->timer.function = (void *) hfcmulti_dbusy_timer;
+			dch->timer.function = hfcmulti_dbusy_timer;
 			dch->timer.data = (long) dch;
 			init_timer(&dch->timer);
 		}
@@ -3986,7 +3987,7 @@ hfcmulti_initmode(struct dchannel *dch)
 		hc->chan[i].slot_rx = -1;
 		hc->chan[i].conf = -1;
 		mode_hfcmulti(hc, i, dch->dev.D.protocol, -1, 0, -1, 0);
-		dch->timer.function = (void *) hfcmulti_dbusy_timer;
+		dch->timer.function = hfcmulti_dbusy_timer;
 		dch->timer.data = (long) dch;
 		init_timer(&dch->timer);
 		hc->chan[i - 2].slot_tx = -1;
diff --git a/drivers/isdn/hardware/mISDN/hfcpci.c b/drivers/isdn/hardware/mISDN/hfcpci.c
index ff48da6..497fb7b 100644
--- a/drivers/isdn/hardware/mISDN/hfcpci.c
+++ b/drivers/isdn/hardware/mISDN/hfcpci.c
@@ -301,8 +301,9 @@ reset_hfcpci(struct hfc_pci *hc)
  * Timer function called when kernel timer expires
  */
 static void
-hfcpci_Timer(struct hfc_pci *hc)
+hfcpci_Timer(unsigned long _hc)
 {
+	struct hfc_pci *hc = (struct hfc_pci *)_hc;
 	hc->hw.timer.expires = jiffies + 75;
 	/* WD RESET */
 /*
@@ -1241,8 +1242,9 @@ hfcpci_int(int intno, void *dev_id)
  * timer callback for D-chan busy resolution. Currently no function
  */
 static void
-hfcpci_dbusy_timer(struct hfc_pci *hc)
+hfcpci_dbusy_timer(unsigned long _hc)
 {
+//	struct hfc_pci *hc = (struct hfc_pci *)_hc;
 }
 
 /*
@@ -1717,7 +1719,7 @@ static void
 inithfcpci(struct hfc_pci *hc)
 {
 	printk(KERN_DEBUG "inithfcpci: entered\n");
-	hc->dch.timer.function = (void *) hfcpci_dbusy_timer;
+	hc->dch.timer.function = hfcpci_dbusy_timer;
 	hc->dch.timer.data = (long) &hc->dch;
 	init_timer(&hc->dch.timer);
 	hc->chanlimit = 2;
@@ -2044,7 +2046,7 @@ setup_hw(struct hfc_pci *hc)
 	Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1);
 	/* At this point the needed PCI config is done */
 	/* fifos are still not enabled */
-	hc->hw.timer.function = (void *) hfcpci_Timer;
+	hc->hw.timer.function = hfcpci_Timer;
 	hc->hw.timer.data = (long) hc;
 	init_timer(&hc->hw.timer);
 	/* default PCM master */
@@ -2293,9 +2295,9 @@ _hfcpci_softirq(struct device *dev, void *arg)
 }
 
 static void
-hfcpci_softirq(void *arg)
+hfcpci_softirq(unsigned long arg)
 {
-	WARN_ON_ONCE(driver_for_each_device(&hfc_driver.driver, NULL, arg,
+	WARN_ON_ONCE(driver_for_each_device(&hfc_driver.driver, NULL, (void *)arg,
 				      _hfcpci_softirq) != 0);
 
 	/* if next event would be in the past ... */
@@ -2330,7 +2332,7 @@ HFC_init(void)
 	if (poll != HFCPCI_BTRANS_THRESHOLD) {
 		printk(KERN_INFO "%s: Using alternative poll value of %d\n",
 		       __func__, poll);
-		hfc_tl.function = (void *)hfcpci_softirq;
+		hfc_tl.function = hfcpci_softirq;
 		hfc_tl.data = 0;
 		init_timer(&hfc_tl);
 		hfc_tl.expires = jiffies + tics;
diff --git a/drivers/isdn/hardware/mISDN/mISDNinfineon.c b/drivers/isdn/hardware/mISDN/mISDNinfineon.c
index d5bdbaf..a7cdc61 100644
--- a/drivers/isdn/hardware/mISDN/mISDNinfineon.c
+++ b/drivers/isdn/hardware/mISDN/mISDNinfineon.c
@@ -244,7 +244,7 @@ _set_debug(struct inf_hw *card)
 }
 
 static int
-set_debug(const char *val, struct kernel_param *kp)
+set_debug(const char *val, const struct kernel_param *kp)
 {
 	int ret;
 	struct inf_hw *card;
@@ -586,9 +586,10 @@ reset_inf(struct inf_hw *hw)
 }
 
 static int
-inf_ctrl(struct inf_hw *hw, u32 cmd, u_long arg)
+inf_ctrl(struct ipac_hw *_hw, u32 cmd, u_long arg)
 {
 	int ret = 0;
+	struct inf_hw *hw = container_of(_hw, struct inf_hw, ipac);
 
 	switch (cmd) {
 	case HW_RESET_REQ:
@@ -915,7 +916,7 @@ setup_instance(struct inf_hw *card)
 	spin_lock_init(&card->lock);
 	card->ipac.isac.hwlock = &card->lock;
 	card->ipac.hwlock = &card->lock;
-	card->ipac.ctrl = (void *)&inf_ctrl;
+	card->ipac.ctrl = &inf_ctrl;
 
 	err = setup_io(card);
 	if (err)
diff --git a/drivers/isdn/hardware/mISDN/mISDNipac.c b/drivers/isdn/hardware/mISDN/mISDNipac.c
index aa9b6c3..ffd3257 100644
--- a/drivers/isdn/hardware/mISDN/mISDNipac.c
+++ b/drivers/isdn/hardware/mISDN/mISDNipac.c
@@ -727,8 +727,9 @@ isac_release(struct isac_hw *isac)
 }
 
 static void
-dbusy_timer_handler(struct isac_hw *isac)
+dbusy_timer_handler(unsigned long _isac)
 {
+	struct isac_hw *isac = (struct isac_hw *)_isac;
 	int rbch, star;
 	u_long flags;
 
@@ -796,7 +797,7 @@ isac_init(struct isac_hw *isac)
 	}
 	isac->mon_tx = NULL;
 	isac->mon_rx = NULL;
-	isac->dch.timer.function = (void *) dbusy_timer_handler;
+	isac->dch.timer.function = dbusy_timer_handler;
 	isac->dch.timer.data = (long)isac;
 	init_timer(&isac->dch.timer);
 	isac->mocr = 0xaa;
diff --git a/drivers/isdn/hardware/mISDN/netjet.c b/drivers/isdn/hardware/mISDN/netjet.c
index afde4ed..e9fcae4 100644
--- a/drivers/isdn/hardware/mISDN/netjet.c
+++ b/drivers/isdn/hardware/mISDN/netjet.c
@@ -111,7 +111,7 @@ _set_debug(struct tiger_hw *card)
 }
 
 static int
-set_debug(const char *val, struct kernel_param *kp)
+set_debug(const char *val, const struct kernel_param *kp)
 {
 	int ret;
 	struct tiger_hw *card;
diff --git a/drivers/isdn/hardware/mISDN/speedfax.c b/drivers/isdn/hardware/mISDN/speedfax.c
index 9815bb4..3d6181e 100644
--- a/drivers/isdn/hardware/mISDN/speedfax.c
+++ b/drivers/isdn/hardware/mISDN/speedfax.c
@@ -94,7 +94,7 @@ _set_debug(struct sfax_hw *card)
 }
 
 static int
-set_debug(const char *val, struct kernel_param *kp)
+set_debug(const char *val, const struct kernel_param *kp)
 {
 	int ret;
 	struct sfax_hw *card;
@@ -186,9 +186,10 @@ reset_speedfax(struct sfax_hw *sf)
 }
 
 static int
-sfax_ctrl(struct sfax_hw  *sf, u32 cmd, u_long arg)
+sfax_ctrl(void *_sf, u32 cmd, u_long arg)
 {
 	int ret = 0;
+	struct sfax_hw *sf = (struct sfax_hw *)_sf;
 
 	switch (cmd) {
 	case HW_RESET_REQ:
@@ -386,7 +387,7 @@ setup_instance(struct sfax_hw *card)
 	spin_lock_init(&card->lock);
 	card->isac.hwlock = &card->lock;
 	card->isar.hwlock = &card->lock;
-	card->isar.ctrl = (void *)&sfax_ctrl;
+	card->isar.ctrl = &sfax_ctrl;
 	card->isac.name = card->name;
 	card->isar.name = card->name;
 	card->isar.owner = THIS_MODULE;
diff --git a/drivers/isdn/hardware/mISDN/w6692.c b/drivers/isdn/hardware/mISDN/w6692.c
index 7416755..2914e7c 100644
--- a/drivers/isdn/hardware/mISDN/w6692.c
+++ b/drivers/isdn/hardware/mISDN/w6692.c
@@ -101,7 +101,7 @@ _set_debug(struct w6692_hw *card)
 }
 
 static int
-set_debug(const char *val, struct kernel_param *kp)
+set_debug(const char *val, const struct kernel_param *kp)
 {
 	int ret;
 	struct w6692_hw *card;
@@ -819,8 +819,9 @@ w6692_irq(int intno, void *dev_id)
 }
 
 static void
-dbusy_timer_handler(struct dchannel *dch)
+dbusy_timer_handler(unsigned long _dch)
 {
+	struct dchannel *dch = (struct dchannel *)_dch;
 	struct w6692_hw	*card = dch->hw;
 	int		rbch, star;
 	u_long		flags;
@@ -852,7 +853,7 @@ void initW6692(struct w6692_hw *card)
 {
 	u8	val;
 
-	card->dch.timer.function = (void *)dbusy_timer_handler;
+	card->dch.timer.function = dbusy_timer_handler;
 	card->dch.timer.data = (u_long)&card->dch;
 	init_timer(&card->dch.timer);
 	w6692_mode(&card->bc[0], ISDN_P_NONE);
diff --git a/drivers/isdn/hisax/amd7930_fn.c b/drivers/isdn/hisax/amd7930_fn.c
index 36817e0..b02bb98 100644
--- a/drivers/isdn/hisax/amd7930_fn.c
+++ b/drivers/isdn/hisax/amd7930_fn.c
@@ -685,8 +685,9 @@ DC_Close_Amd7930(struct IsdnCardState *cs) {
 
 
 static void
-dbusy_timer_handler(struct IsdnCardState *cs)
+dbusy_timer_handler(unsigned long _cs)
 {
+	struct IsdnCardState *cs = (struct IsdnCardState *)_cs;
 	u_long flags;
 	struct PStack *stptr;
 	WORD dtcr, der;
@@ -789,7 +790,7 @@ void Amd7930_init(struct IsdnCardState *cs)
 void setup_Amd7930(struct IsdnCardState *cs)
 {
 	INIT_WORK(&cs->tqueue, Amd7930_bh);
-	cs->dbusytimer.function = (void *) dbusy_timer_handler;
+	cs->dbusytimer.function = dbusy_timer_handler;
 	cs->dbusytimer.data = (long) cs;
 	init_timer(&cs->dbusytimer);
 }
diff --git a/drivers/isdn/hisax/arcofi.c b/drivers/isdn/hisax/arcofi.c
index 29ec2df..9c7123c 100644
--- a/drivers/isdn/hisax/arcofi.c
+++ b/drivers/isdn/hisax/arcofi.c
@@ -112,7 +112,8 @@ arcofi_fsm(struct IsdnCardState *cs, int event, void *data) {
 }
 
 static void
-arcofi_timer(struct IsdnCardState *cs) {
+arcofi_timer(unsigned long _cs) {
+	struct IsdnCardState *cs = (struct IsdnCardState *)_cs;
 	arcofi_fsm(cs, ARCOFI_TIMEOUT, NULL);
 }
 
@@ -125,7 +126,7 @@ clear_arcofi(struct IsdnCardState *cs) {
 
 void
 init_arcofi(struct IsdnCardState *cs) {
-	cs->dc.isac.arcofitimer.function = (void *) arcofi_timer;
+	cs->dc.isac.arcofitimer.function = arcofi_timer;
 	cs->dc.isac.arcofitimer.data = (long) cs;
 	init_timer(&cs->dc.isac.arcofitimer);
 	init_waitqueue_head(&cs->dc.isac.arcofi_wait);
diff --git a/drivers/isdn/hisax/diva.c b/drivers/isdn/hisax/diva.c
index 4fc90de..fda68cd 100644
--- a/drivers/isdn/hisax/diva.c
+++ b/drivers/isdn/hisax/diva.c
@@ -796,8 +796,9 @@ reset_diva(struct IsdnCardState *cs)
 #define DIVA_ASSIGN 1
 
 static void
-diva_led_handler(struct IsdnCardState *cs)
+diva_led_handler(unsigned long _cs)
 {
+	struct IsdnCardState *cs = (struct IsdnCardState *)_cs;
 	int blink = 0;
 
 	if ((cs->subtyp == DIVA_IPAC_ISA) ||
@@ -898,7 +899,7 @@ Diva_card_msg(struct IsdnCardState *cs, int mt, void *arg)
 	    (cs->subtyp != DIVA_IPAC_PCI) &&
 	    (cs->subtyp != DIVA_IPACX_PCI)) {
 		spin_lock_irqsave(&cs->lock, flags);
-		diva_led_handler(cs);
+		diva_led_handler((unsigned long)cs);
 		spin_unlock_irqrestore(&cs->lock, flags);
 	}
 	return (0);
@@ -976,7 +977,7 @@ static int setup_diva_common(struct IsdnCardState *cs)
 		printk(KERN_INFO "Diva: IPACX Design Id: %x\n",
 		       MemReadISAC_IPACX(cs, IPACX_ID) & 0x3F);
 	} else { /* DIVA 2.0 */
-		cs->hw.diva.tl.function = (void *) diva_led_handler;
+		cs->hw.diva.tl.function = diva_led_handler;
 		cs->hw.diva.tl.data = (long) cs;
 		init_timer(&cs->hw.diva.tl);
 		cs->readisac  = &ReadISAC;
diff --git a/drivers/isdn/hisax/elsa.c b/drivers/isdn/hisax/elsa.c
index d8ef64d..9c50267 100644
--- a/drivers/isdn/hisax/elsa.c
+++ b/drivers/isdn/hisax/elsa.c
@@ -606,8 +606,9 @@ check_arcofi(struct IsdnCardState *cs)
 #endif /* ARCOFI_USE */
 
 static void
-elsa_led_handler(struct IsdnCardState *cs)
+elsa_led_handler(unsigned long _cs)
 {
+	struct IsdnCardState *cs = (struct IsdnCardState *)_cs;
 	int blink = 0;
 
 	if (cs->subtyp == ELSA_PCMCIA || cs->subtyp == ELSA_PCMCIA_IPAC)
@@ -715,7 +716,7 @@ Elsa_card_msg(struct IsdnCardState *cs, int mt, void *arg)
 			init_modem(cs);
 		}
 #endif
-		elsa_led_handler(cs);
+		elsa_led_handler((unsigned long)cs);
 		return (ret);
 	case (MDL_REMOVE | REQUEST):
 		cs->hw.elsa.status &= 0;
@@ -767,7 +768,7 @@ Elsa_card_msg(struct IsdnCardState *cs, int mt, void *arg)
 		else
 			cs->hw.elsa.status &= ~ELSA_BAD_PWR;
 	}
-	elsa_led_handler(cs);
+	elsa_led_handler((unsigned long)cs);
 	return (ret);
 }
 
@@ -1147,7 +1148,7 @@ static int setup_elsa_common(struct IsdnCard *card)
 	init_arcofi(cs);
 #endif
 	setup_isac(cs);
-	cs->hw.elsa.tl.function = (void *) elsa_led_handler;
+	cs->hw.elsa.tl.function = elsa_led_handler;
 	cs->hw.elsa.tl.data = (long) cs;
 	init_timer(&cs->hw.elsa.tl);
 	/* Teste Timer */
diff --git a/drivers/isdn/hisax/fsm.c b/drivers/isdn/hisax/fsm.c
index c7a9471..5409bd3 100644
--- a/drivers/isdn/hisax/fsm.c
+++ b/drivers/isdn/hisax/fsm.c
@@ -85,8 +85,9 @@ FsmChangeState(struct FsmInst *fi, int newstate)
 }
 
 static void
-FsmExpireTimer(struct FsmTimer *ft)
+FsmExpireTimer(unsigned long _ft)
 {
+	struct FsmTimer *ft = (struct FsmTimer *)_ft;
 #if FSM_TIMER_DEBUG
 	if (ft->fi->debug)
 		ft->fi->printdebug(ft->fi, "FsmExpireTimer %lx", (long) ft);
@@ -98,7 +99,7 @@ void
 FsmInitTimer(struct FsmInst *fi, struct FsmTimer *ft)
 {
 	ft->fi = fi;
-	ft->tl.function = (void *) FsmExpireTimer;
+	ft->tl.function = FsmExpireTimer;
 	ft->tl.data = (long) ft;
 #if FSM_TIMER_DEBUG
 	if (ft->fi->debug)
diff --git a/drivers/isdn/hisax/hfc4s8s_l1.c b/drivers/isdn/hisax/hfc4s8s_l1.c
index 9600cd7..86ca5a3 100644
--- a/drivers/isdn/hisax/hfc4s8s_l1.c
+++ b/drivers/isdn/hisax/hfc4s8s_l1.c
@@ -299,8 +299,9 @@ Read_hfc16_stable(hfc4s8s_hw *hw, int reg)
 /* D-channel call from HiSax */
 /*****************************/
 static void
-dch_l2l1(struct hisax_d_if *iface, int pr, void *arg)
+dch_l2l1(struct hisax_if *_iface, int pr, void *arg)
 {
+	struct hisax_d_if *iface = container_of(_iface, struct hisax_d_if, ifc);
 	struct hfc4s8s_l1 *l1 = iface->ifc.priv;
 	struct sk_buff *skb = (struct sk_buff *) arg;
 	u_long flags;
@@ -591,8 +592,9 @@ bch_l2l1(struct hisax_if *ifc, int pr, void *arg)
 /* layer 1 timer function */
 /**************************/
 static void
-hfc_l1_timer(struct hfc4s8s_l1 *l1)
+hfc_l1_timer(unsigned long _l1)
 {
+	struct hfc4s8s_l1 *l1 = (struct hfc4s8s_l1 *)_l1;
 	u_long flags;
 
 	if (!l1->enabled)
@@ -1396,16 +1398,16 @@ setup_instance(hfc4s8s_hw *hw)
 		l1p = hw->l1 + i;
 		spin_lock_init(&l1p->lock);
 		l1p->hw = hw;
-		l1p->l1_timer.function = (void *) hfc_l1_timer;
+		l1p->l1_timer.function = hfc_l1_timer;
 		l1p->l1_timer.data = (long) (l1p);
 		init_timer(&l1p->l1_timer);
 		l1p->st_num = i;
 		skb_queue_head_init(&l1p->d_tx_queue);
 		l1p->d_if.ifc.priv = hw->l1 + i;
-		l1p->d_if.ifc.l2l1 = (void *) dch_l2l1;
+		l1p->d_if.ifc.l2l1 = dch_l2l1;
 
 		spin_lock_init(&l1p->b_ch[0].lock);
-		l1p->b_ch[0].b_if.ifc.l2l1 = (void *) bch_l2l1;
+		l1p->b_ch[0].b_if.ifc.l2l1 = bch_l2l1;
 		l1p->b_ch[0].b_if.ifc.priv = (void *) &l1p->b_ch[0];
 		l1p->b_ch[0].l1p = hw->l1 + i;
 		l1p->b_ch[0].bchan = 1;
@@ -1413,7 +1415,7 @@ setup_instance(hfc4s8s_hw *hw)
 		skb_queue_head_init(&l1p->b_ch[0].tx_queue);
 
 		spin_lock_init(&l1p->b_ch[1].lock);
-		l1p->b_ch[1].b_if.ifc.l2l1 = (void *) bch_l2l1;
+		l1p->b_ch[1].b_if.ifc.l2l1 = bch_l2l1;
 		l1p->b_ch[1].b_if.ifc.priv = (void *) &l1p->b_ch[1];
 		l1p->b_ch[1].l1p = hw->l1 + i;
 		l1p->b_ch[1].bchan = 2;
diff --git a/drivers/isdn/hisax/hfc_2bds0.c b/drivers/isdn/hisax/hfc_2bds0.c
index a756e5c..e4789ba 100644
--- a/drivers/isdn/hisax/hfc_2bds0.c
+++ b/drivers/isdn/hisax/hfc_2bds0.c
@@ -1014,7 +1014,7 @@ setstack_hfcd(struct PStack *st, struct IsdnCardState *cs)
 }
 
 static void
-hfc_dbusy_timer(struct IsdnCardState *cs)
+hfc_dbusy_timer(unsigned long _cs)
 {
 }
 
@@ -1073,7 +1073,7 @@ set_cs_func(struct IsdnCardState *cs)
 	cs->writeisacfifo = &dummyf;
 	cs->BC_Read_Reg = &ReadReg;
 	cs->BC_Write_Reg = &WriteReg;
-	cs->dbusytimer.function = (void *) hfc_dbusy_timer;
+	cs->dbusytimer.function = hfc_dbusy_timer;
 	cs->dbusytimer.data = (long) cs;
 	init_timer(&cs->dbusytimer);
 	INIT_WORK(&cs->tqueue, hfcd_bh);
diff --git a/drivers/isdn/hisax/hfc_pci.c b/drivers/isdn/hisax/hfc_pci.c
index 90449e1..9a5394c 100644
--- a/drivers/isdn/hisax/hfc_pci.c
+++ b/drivers/isdn/hisax/hfc_pci.c
@@ -165,8 +165,9 @@ reset_hfcpci(struct IsdnCardState *cs)
 /* Timer function called when kernel timer expires */
 /***************************************************/
 static void
-hfcpci_Timer(struct IsdnCardState *cs)
+hfcpci_Timer(unsigned long _cs)
 {
+	struct IsdnCardState *cs = (struct IsdnCardState *)_cs;
 	cs->hw.hfcpci.timer.expires = jiffies + 75;
 	/* WD RESET */
 /*      WriteReg(cs, HFCD_DATA, HFCD_CTMT, cs->hw.hfcpci.ctmt | 0x80);
@@ -1095,8 +1096,9 @@ hfcpci_interrupt(int intno, void *dev_id)
 /* timer callback for D-chan busy resolution. Currently no function */
 /********************************************************************/
 static void
-hfcpci_dbusy_timer(struct IsdnCardState *cs)
+hfcpci_dbusy_timer(unsigned long _cs)
 {
+	//struct IsdnCardState *cs = (struct IsdnCardState *)_cs;
 }
 
 /*************************************/
@@ -1582,7 +1584,7 @@ inithfcpci(struct IsdnCardState *cs)
 	cs->bcs[1].BC_SetStack = setstack_2b;
 	cs->bcs[0].BC_Close = close_hfcpci;
 	cs->bcs[1].BC_Close = close_hfcpci;
-	cs->dbusytimer.function = (void *) hfcpci_dbusy_timer;
+	cs->dbusytimer.function = hfcpci_dbusy_timer;
 	cs->dbusytimer.data = (long) cs;
 	init_timer(&cs->dbusytimer);
 	mode_hfcpci(cs->bcs, 0, 0);
@@ -1746,7 +1748,7 @@ setup_hfcpci(struct IsdnCard *card)
 	cs->BC_Write_Reg = NULL;
 	cs->irq_func = &hfcpci_interrupt;
 	cs->irq_flags |= IRQF_SHARED;
-	cs->hw.hfcpci.timer.function = (void *) hfcpci_Timer;
+	cs->hw.hfcpci.timer.function = hfcpci_Timer;
 	cs->hw.hfcpci.timer.data = (long) cs;
 	init_timer(&cs->hw.hfcpci.timer);
 	cs->cardmsg = &hfcpci_card_msg;
diff --git a/drivers/isdn/hisax/hfc_sx.c b/drivers/isdn/hisax/hfc_sx.c
index 13b2151..d3e0732 100644
--- a/drivers/isdn/hisax/hfc_sx.c
+++ b/drivers/isdn/hisax/hfc_sx.c
@@ -418,8 +418,9 @@ reset_hfcsx(struct IsdnCardState *cs)
 /* Timer function called when kernel timer expires */
 /***************************************************/
 static void
-hfcsx_Timer(struct IsdnCardState *cs)
+hfcsx_Timer(unsigned long _cs)
 {
+	struct IsdnCardState *cs = (struct IsdnCardState *)_cs;
 	cs->hw.hfcsx.timer.expires = jiffies + 75;
 	/* WD RESET */
 /*      WriteReg(cs, HFCD_DATA, HFCD_CTMT, cs->hw.hfcsx.ctmt | 0x80);
@@ -860,8 +861,9 @@ hfcsx_interrupt(int intno, void *dev_id)
 /* timer callback for D-chan busy resolution. Currently no function */
 /********************************************************************/
 static void
-hfcsx_dbusy_timer(struct IsdnCardState *cs)
+hfcsx_dbusy_timer(unsigned long _cs)
 {
+	//struct IsdnCardState *cs = (struct IsdnCardState *)_cs;
 }
 
 /*************************************/
@@ -1495,7 +1497,7 @@ int setup_hfcsx(struct IsdnCard *card)
 	} else
 		return (0);	/* no valid card type */
 
-	cs->dbusytimer.function = (void *) hfcsx_dbusy_timer;
+	cs->dbusytimer.function = hfcsx_dbusy_timer;
 	cs->dbusytimer.data = (long) cs;
 	init_timer(&cs->dbusytimer);
 	INIT_WORK(&cs->tqueue, hfcsx_bh);
@@ -1507,7 +1509,7 @@ int setup_hfcsx(struct IsdnCard *card)
 	cs->BC_Write_Reg = NULL;
 	cs->irq_func = &hfcsx_interrupt;
 
-	cs->hw.hfcsx.timer.function = (void *) hfcsx_Timer;
+	cs->hw.hfcsx.timer.function = hfcsx_Timer;
 	cs->hw.hfcsx.timer.data = (long) cs;
 	cs->hw.hfcsx.b_fifo_size = 0; /* fifo size still unknown */
 	cs->hw.hfcsx.cirm = ccd_sp_irqtab[cs->irq & 0xF]; /* RAM not evaluated */
diff --git a/drivers/isdn/hisax/hfc_usb.c b/drivers/isdn/hisax/hfc_usb.c
index 678bd52..1c4f12a 100644
--- a/drivers/isdn/hisax/hfc_usb.c
+++ b/drivers/isdn/hisax/hfc_usb.c
@@ -343,8 +343,10 @@ handle_led(hfcusb_data *hfc, int event)
 
 /* ISDN l1 timer T3 expires */
 static void
-l1_timer_expire_t3(hfcusb_data *hfc)
+l1_timer_expire_t3(unsigned long _hfc)
 {
+	hfcusb_data *hfc = (hfcusb_data *)_hfc;
+
 	hfc->d_if.ifc.l1l2(&hfc->d_if.ifc, PH_DEACTIVATE | INDICATION,
 			   NULL);
 
@@ -360,8 +362,10 @@ l1_timer_expire_t3(hfcusb_data *hfc)
 
 /* ISDN l1 timer T4 expires */
 static void
-l1_timer_expire_t4(hfcusb_data *hfc)
+l1_timer_expire_t4(unsigned long _hfc)
 {
+	hfcusb_data *hfc = (hfcusb_data *)_hfc;
+
 	hfc->d_if.ifc.l1l2(&hfc->d_if.ifc, PH_DEACTIVATE | INDICATION,
 			   NULL);
 
@@ -1167,12 +1171,12 @@ hfc_usb_init(hfcusb_data *hfc)
 	/* init the t3 timer */
 	init_timer(&hfc->t3_timer);
 	hfc->t3_timer.data = (long) hfc;
-	hfc->t3_timer.function = (void *) l1_timer_expire_t3;
+	hfc->t3_timer.function = l1_timer_expire_t3;
 
 	/* init the t4 timer */
 	init_timer(&hfc->t4_timer);
 	hfc->t4_timer.data = (long) hfc;
-	hfc->t4_timer.function = (void *) l1_timer_expire_t4;
+	hfc->t4_timer.function = l1_timer_expire_t4;
 
 	/* init the background machinery for control requests */
 	hfc->ctrl_read.bRequestType = 0xc0;
diff --git a/drivers/isdn/hisax/hfcscard.c b/drivers/isdn/hisax/hfcscard.c
index 394da64..85f5f63 100644
--- a/drivers/isdn/hisax/hfcscard.c
+++ b/drivers/isdn/hisax/hfcscard.c
@@ -41,8 +41,10 @@ hfcs_interrupt(int intno, void *dev_id)
 }
 
 static void
-hfcs_Timer(struct IsdnCardState *cs)
+hfcs_Timer(unsigned long _cs)
 {
+	struct IsdnCardState *cs = (struct IsdnCardState *)_cs;
+
 	cs->hw.hfcD.timer.expires = jiffies + 75;
 	/* WD RESET */
 /*	WriteReg(cs, HFCD_DATA, HFCD_CTMT, cs->hw.hfcD.ctmt | 0x80);
@@ -253,7 +255,7 @@ int setup_hfcs(struct IsdnCard *card)
 		outb(0x57, cs->hw.hfcD.addr | 1);
 	}
 	set_cs_func(cs);
-	cs->hw.hfcD.timer.function = (void *) hfcs_Timer;
+	cs->hw.hfcD.timer.function = hfcs_Timer;
 	cs->hw.hfcD.timer.data = (long) cs;
 	init_timer(&cs->hw.hfcD.timer);
 	cs->cardmsg = &hfcs_card_msg;
diff --git a/drivers/isdn/hisax/icc.c b/drivers/isdn/hisax/icc.c
index 96d1df0..77a05ee 100644
--- a/drivers/isdn/hisax/icc.c
+++ b/drivers/isdn/hisax/icc.c
@@ -580,8 +580,9 @@ DC_Close_icc(struct IsdnCardState *cs) {
 }
 
 static void
-dbusy_timer_handler(struct IsdnCardState *cs)
+dbusy_timer_handler(unsigned long _cs)
 {
+	struct IsdnCardState *cs = (struct IsdnCardState *)_cs;
 	struct PStack *stptr;
 	int	rbch, star;
 
@@ -676,7 +677,7 @@ clear_pending_icc_ints(struct IsdnCardState *cs)
 void setup_icc(struct IsdnCardState *cs)
 {
 	INIT_WORK(&cs->tqueue, icc_bh);
-	cs->dbusytimer.function = (void *) dbusy_timer_handler;
+	cs->dbusytimer.function = dbusy_timer_handler;
 	cs->dbusytimer.data = (long) cs;
 	init_timer(&cs->dbusytimer);
 }
diff --git a/drivers/isdn/hisax/ipacx.c b/drivers/isdn/hisax/ipacx.c
index 9cc26b4..d7fa044 100644
--- a/drivers/isdn/hisax/ipacx.c
+++ b/drivers/isdn/hisax/ipacx.c
@@ -35,7 +35,7 @@
 static void ph_command(struct IsdnCardState *cs, unsigned int command);
 static inline void cic_int(struct IsdnCardState *cs);
 static void dch_l2l1(struct PStack *st, int pr, void *arg);
-static void dbusy_timer_handler(struct IsdnCardState *cs);
+static void dbusy_timer_handler(unsigned long _cs);
 static void dch_empty_fifo(struct IsdnCardState *cs, int count);
 static void dch_fill_fifo(struct IsdnCardState *cs);
 static inline void dch_int(struct IsdnCardState *cs);
@@ -198,8 +198,9 @@ dch_l2l1(struct PStack *st, int pr, void *arg)
 //----------------------------------------------------------
 //----------------------------------------------------------
 static void
-dbusy_timer_handler(struct IsdnCardState *cs)
+dbusy_timer_handler(unsigned long _cs)
 {
+	struct IsdnCardState *cs = (struct IsdnCardState *)_cs;
 	struct PStack *st;
 	int	rbchd, stard;
 
@@ -424,7 +425,7 @@ dch_init(struct IsdnCardState *cs)
 
 	cs->setstack_d      = dch_setstack;
 
-	cs->dbusytimer.function = (void *) dbusy_timer_handler;
+	cs->dbusytimer.function = dbusy_timer_handler;
 	cs->dbusytimer.data = (long) cs;
 	init_timer(&cs->dbusytimer);
 
diff --git a/drivers/isdn/hisax/isac.c b/drivers/isdn/hisax/isac.c
index df7e05c..0f7dca1 100644
--- a/drivers/isdn/hisax/isac.c
+++ b/drivers/isdn/hisax/isac.c
@@ -584,8 +584,9 @@ DC_Close_isac(struct IsdnCardState *cs)
 }
 
 static void
-dbusy_timer_handler(struct IsdnCardState *cs)
+dbusy_timer_handler(unsigned long _cs)
 {
+	struct IsdnCardState *cs = (struct IsdnCardState *)_cs;
 	struct PStack *stptr;
 	int	rbch, star;
 
@@ -677,7 +678,7 @@ void clear_pending_isac_ints(struct IsdnCardState *cs)
 void setup_isac(struct IsdnCardState *cs)
 {
 	INIT_WORK(&cs->tqueue, isac_bh);
-	cs->dbusytimer.function = (void *) dbusy_timer_handler;
+	cs->dbusytimer.function = dbusy_timer_handler;
 	cs->dbusytimer.data = (long) cs;
 	init_timer(&cs->dbusytimer);
 }
diff --git a/drivers/isdn/hisax/isar.c b/drivers/isdn/hisax/isar.c
index f4956c7..122d249 100644
--- a/drivers/isdn/hisax/isar.c
+++ b/drivers/isdn/hisax/isar.c
@@ -1267,7 +1267,8 @@ isar_int_main(struct IsdnCardState *cs)
 }
 
 static void
-ftimer_handler(struct BCState *bcs) {
+ftimer_handler(unsigned long _bcs) {
+	struct BCState *bcs = (struct BCState *)_bcs;
 	if (bcs->cs->debug)
 		debugl1(bcs->cs, "ftimer flags %04lx",
 			bcs->Flag);
@@ -1902,7 +1903,7 @@ void initisar(struct IsdnCardState *cs)
 	cs->bcs[1].BC_SetStack = setstack_isar;
 	cs->bcs[0].BC_Close = close_isarstate;
 	cs->bcs[1].BC_Close = close_isarstate;
-	cs->bcs[0].hw.isar.ftimer.function = (void *) ftimer_handler;
+	cs->bcs[0].hw.isar.ftimer.function = ftimer_handler;
 	cs->bcs[0].hw.isar.ftimer.data = (long) &cs->bcs[0];
 	init_timer(&cs->bcs[0].hw.isar.ftimer);
 	cs->bcs[1].hw.isar.ftimer.function = (void *) ftimer_handler;
diff --git a/drivers/isdn/hisax/isdnl3.c b/drivers/isdn/hisax/isdnl3.c
index c754706..8b1ffd5 100644
--- a/drivers/isdn/hisax/isdnl3.c
+++ b/drivers/isdn/hisax/isdnl3.c
@@ -160,8 +160,9 @@ newl3state(struct l3_process *pc, int state)
 }
 
 static void
-L3ExpireTimer(struct L3Timer *t)
+L3ExpireTimer(unsigned long _t)
 {
+	struct L3Timer *t = (struct L3Timer *)_t;
 	t->pc->st->lli.l4l3(t->pc->st, t->event, t->pc);
 }
 
@@ -169,7 +170,7 @@ void
 L3InitTimer(struct l3_process *pc, struct L3Timer *t)
 {
 	t->pc = pc;
-	t->tl.function = (void *) L3ExpireTimer;
+	t->tl.function = L3ExpireTimer;
 	t->tl.data = (long) t;
 	init_timer(&t->tl);
 }
diff --git a/drivers/isdn/hisax/saphir.c b/drivers/isdn/hisax/saphir.c
index 6b2d0ec..4bf5a9e 100644
--- a/drivers/isdn/hisax/saphir.c
+++ b/drivers/isdn/hisax/saphir.c
@@ -159,8 +159,9 @@ Start_ISAC:
 }
 
 static void
-SaphirWatchDog(struct IsdnCardState *cs)
+SaphirWatchDog(unsigned long _cs)
 {
+	struct IsdnCardState *cs = (struct IsdnCardState *)_cs;
 	u_long flags;
 
 	spin_lock_irqsave(&cs->lock, flags);
@@ -268,7 +269,7 @@ int setup_saphir(struct IsdnCard *card)
 	       cs->irq, cs->hw.saphir.cfg_reg);
 
 	setup_isac(cs);
-	cs->hw.saphir.timer.function = (void *) SaphirWatchDog;
+	cs->hw.saphir.timer.function = SaphirWatchDog;
 	cs->hw.saphir.timer.data = (long) cs;
 	init_timer(&cs->hw.saphir.timer);
 	cs->hw.saphir.timer.expires = jiffies + 4 * HZ;
diff --git a/drivers/isdn/hisax/teleint.c b/drivers/isdn/hisax/teleint.c
index bf64754..e2a3709 100644
--- a/drivers/isdn/hisax/teleint.c
+++ b/drivers/isdn/hisax/teleint.c
@@ -179,8 +179,9 @@ Start_ISAC:
 }
 
 static void
-TeleInt_Timer(struct IsdnCardState *cs)
+TeleInt_Timer(unsigned long _cs)
 {
+	struct IsdnCardState *cs = (struct IsdnCardState *)_cs;
 	int stat = 0;
 	u_long flags;
 
@@ -278,7 +279,7 @@ int setup_TeleInt(struct IsdnCard *card)
 	cs->bcs[0].hw.hfc.send = NULL;
 	cs->bcs[1].hw.hfc.send = NULL;
 	cs->hw.hfc.fifosize = 7 * 1024 + 512;
-	cs->hw.hfc.timer.function = (void *) TeleInt_Timer;
+	cs->hw.hfc.timer.function = TeleInt_Timer;
 	cs->hw.hfc.timer.data = (long) cs;
 	init_timer(&cs->hw.hfc.timer);
 	if (!request_region(cs->hw.hfc.addr, 2, "TeleInt isdn")) {
diff --git a/drivers/isdn/hisax/w6692.c b/drivers/isdn/hisax/w6692.c
index a858955..908285b 100644
--- a/drivers/isdn/hisax/w6692.c
+++ b/drivers/isdn/hisax/w6692.c
@@ -681,8 +681,9 @@ DC_Close_W6692(struct IsdnCardState *cs)
 }
 
 static void
-dbusy_timer_handler(struct IsdnCardState *cs)
+dbusy_timer_handler(unsigned long _cs)
 {
+	struct IsdnCardState *cs = (struct IsdnCardState *)_cs;
 	struct PStack *stptr;
 	int rbch, star;
 	u_long flags;
@@ -901,7 +902,7 @@ static void initW6692(struct IsdnCardState *cs, int part)
 	if (part & 1) {
 		cs->setstack_d = setstack_W6692;
 		cs->DC_Close = DC_Close_W6692;
-		cs->dbusytimer.function = (void *) dbusy_timer_handler;
+		cs->dbusytimer.function = dbusy_timer_handler;
 		cs->dbusytimer.data = (long) cs;
 		init_timer(&cs->dbusytimer);
 		resetW6692(cs);
diff --git a/drivers/isdn/i4l/isdn_common.c b/drivers/isdn/i4l/isdn_common.c
index 9b856e1..fa03c92 100644
--- a/drivers/isdn/i4l/isdn_common.c
+++ b/drivers/isdn/i4l/isdn_common.c
@@ -1654,6 +1654,8 @@ isdn_ioctl(struct file *file, uint cmd, ulong arg)
 			} else
 				return -EINVAL;
 		case IIOCDBGVAR:
+			if (!capable(CAP_SYS_RAWIO))
+				return -EPERM;
 			if (arg) {
 				if (copy_to_user(argp, &dev, sizeof(ulong)))
 					return -EFAULT;
diff --git a/drivers/isdn/i4l/isdn_concap.c b/drivers/isdn/i4l/isdn_concap.c
index 91d5730..336523e 100644
--- a/drivers/isdn/i4l/isdn_concap.c
+++ b/drivers/isdn/i4l/isdn_concap.c
@@ -80,9 +80,9 @@ static int isdn_concap_dl_disconn_req(struct concap_proto *concap)
 }
 
 struct concap_device_ops isdn_concap_reliable_dl_dops = {
-	&isdn_concap_dl_data_req,
-	&isdn_concap_dl_connect_req,
-	&isdn_concap_dl_disconn_req
+	.data_req = &isdn_concap_dl_data_req,
+	.connect_req = &isdn_concap_dl_connect_req,
+	.disconn_req = &isdn_concap_dl_disconn_req
 };
 
 /* The following should better go into a dedicated source file such that
diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
index 947d5c9..d75f751 100644
--- a/drivers/isdn/i4l/isdn_tty.c
+++ b/drivers/isdn/i4l/isdn_tty.c
@@ -1503,9 +1503,9 @@ isdn_tty_open(struct tty_struct *tty, struct file *filp)
 
 #ifdef ISDN_DEBUG_MODEM_OPEN
 	printk(KERN_DEBUG "isdn_tty_open %s, count = %d\n", tty->name,
-	       port->count);
+	       atomic_read(&port->count));
 #endif
-	port->count++;
+	atomic_inc(&port->count);
 	port->tty = tty;
 	/*
 	 * Start up serial port
@@ -1549,7 +1549,7 @@ isdn_tty_close(struct tty_struct *tty, struct file *filp)
 #endif
 		return;
 	}
-	if ((tty->count == 1) && (port->count != 1)) {
+	if ((tty->count == 1) && (atomic_read(&port->count) != 1)) {
 		/*
 		 * Uh, oh.  tty->count is 1, which means that the tty
 		 * structure will be freed.  Info->count should always
@@ -1558,15 +1558,15 @@ isdn_tty_close(struct tty_struct *tty, struct file *filp)
 		 * serial port won't be shutdown.
 		 */
 		printk(KERN_ERR "isdn_tty_close: bad port count; tty->count is 1, "
-		       "info->count is %d\n", port->count);
-		port->count = 1;
+		       "info->count is %d\n", atomic_read(&port->count));
+		atomic_set(&port->count, 1);
 	}
-	if (--port->count < 0) {
+	if (atomic_dec_return(&port->count) < 0) {
 		printk(KERN_ERR "isdn_tty_close: bad port count for ttyi%d: %d\n",
-		       info->line, port->count);
-		port->count = 0;
+		       info->line, atomic_read(&port->count));
+		atomic_set(&port->count, 0);
 	}
-	if (port->count) {
+	if (atomic_read(&port->count)) {
 #ifdef ISDN_DEBUG_MODEM_OPEN
 		printk(KERN_DEBUG "isdn_tty_close after info->count != 0\n");
 #endif
@@ -1621,7 +1621,7 @@ isdn_tty_hangup(struct tty_struct *tty)
 	if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_hangup"))
 		return;
 	isdn_tty_shutdown(info);
-	port->count = 0;
+	atomic_set(&port->count, 0);
 	port->flags &= ~ASYNC_NORMAL_ACTIVE;
 	port->tty = NULL;
 	wake_up_interruptible(&port->open_wait);
@@ -1966,7 +1966,7 @@ isdn_tty_find_icall(int di, int ch, setup_parm *setup)
 	for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
 		modem_info *info = &dev->mdm.info[i];
 
-		if (info->port.count == 0)
+		if (atomic_read(&info->port.count) == 0)
 			continue;
 		if ((info->emu.mdmreg[REG_SI1] & si2bit[si1]) &&  /* SI1 is matching */
 		    (info->emu.mdmreg[REG_SI2] == si2))	{         /* SI2 is matching */
diff --git a/drivers/isdn/i4l/isdn_x25iface.c b/drivers/isdn/i4l/isdn_x25iface.c
index e2d4e58..40cd045 100644
--- a/drivers/isdn/i4l/isdn_x25iface.c
+++ b/drivers/isdn/i4l/isdn_x25iface.c
@@ -53,14 +53,14 @@ static int isdn_x25iface_disconn_ind(struct concap_proto *);
 
 
 static struct concap_proto_ops ix25_pops = {
-	&isdn_x25iface_proto_new,
-	&isdn_x25iface_proto_del,
-	&isdn_x25iface_proto_restart,
-	&isdn_x25iface_proto_close,
-	&isdn_x25iface_xmit,
-	&isdn_x25iface_receive,
-	&isdn_x25iface_connect_ind,
-	&isdn_x25iface_disconn_ind
+	.proto_new = &isdn_x25iface_proto_new,
+	.proto_del = &isdn_x25iface_proto_del,
+	.restart = &isdn_x25iface_proto_restart,
+	.close = &isdn_x25iface_proto_close,
+	.encap_and_xmit = &isdn_x25iface_xmit,
+	.data_ind = &isdn_x25iface_receive,
+	.connect_ind = &isdn_x25iface_connect_ind,
+	.disconn_ind = &isdn_x25iface_disconn_ind
 };
 
 /* error message helper function */
diff --git a/drivers/isdn/mISDN/dsp.h b/drivers/isdn/mISDN/dsp.h
index fc1733a..27bf261 100644
--- a/drivers/isdn/mISDN/dsp.h
+++ b/drivers/isdn/mISDN/dsp.h
@@ -247,7 +247,7 @@ extern void dsp_cmx_hardware(struct dsp_conf *conf, struct dsp *dsp);
 extern int dsp_cmx_conf(struct dsp *dsp, u32 conf_id);
 extern void dsp_cmx_receive(struct dsp *dsp, struct sk_buff *skb);
 extern void dsp_cmx_hdlc(struct dsp *dsp, struct sk_buff *skb);
-extern void dsp_cmx_send(void *arg);
+extern void dsp_cmx_send(unsigned long arg);
 extern void dsp_cmx_transmit(struct dsp *dsp, struct sk_buff *skb);
 extern int dsp_cmx_del_conf_member(struct dsp *dsp);
 extern int dsp_cmx_del_conf(struct dsp_conf *conf);
@@ -259,7 +259,7 @@ extern u8 *dsp_dtmf_goertzel_decode(struct dsp *dsp, u8 *data, int len,
 
 extern int dsp_tone(struct dsp *dsp, int tone);
 extern void dsp_tone_copy(struct dsp *dsp, u8 *data, int len);
-extern void dsp_tone_timeout(void *arg);
+extern void dsp_tone_timeout(unsigned long arg);
 
 extern void dsp_bf_encrypt(struct dsp *dsp, u8 *data, int len);
 extern void dsp_bf_decrypt(struct dsp *dsp, u8 *data, int len);
diff --git a/drivers/isdn/mISDN/dsp_cmx.c b/drivers/isdn/mISDN/dsp_cmx.c
index 8e3aa00..723faf8 100644
--- a/drivers/isdn/mISDN/dsp_cmx.c
+++ b/drivers/isdn/mISDN/dsp_cmx.c
@@ -1625,8 +1625,8 @@ unsigned long	dsp_spl_jiffies; /* calculate the next time to fire */
 static u16	dsp_count; /* last sample count */
 static int	dsp_count_valid; /* if we have last sample count */
 
-void
-dsp_cmx_send(void *arg)
+void __intentional_overflow(-1)
+dsp_cmx_send(unsigned long arg)
 {
 	struct dsp_conf *conf;
 	struct dsp_conf_member *member;
diff --git a/drivers/isdn/mISDN/dsp_core.c b/drivers/isdn/mISDN/dsp_core.c
index 0222b1a..67fb76a 100644
--- a/drivers/isdn/mISDN/dsp_core.c
+++ b/drivers/isdn/mISDN/dsp_core.c
@@ -1092,7 +1092,7 @@ dspcreate(struct channel_req *crq)
 	ndsp->pcm_bank_tx = -1;
 	ndsp->hfc_conf = -1; /* current conference number */
 	/* set tone timer */
-	ndsp->tone.tl.function = (void *)dsp_tone_timeout;
+	ndsp->tone.tl.function = dsp_tone_timeout;
 	ndsp->tone.tl.data = (long) ndsp;
 	init_timer(&ndsp->tone.tl);
 
@@ -1204,7 +1204,7 @@ static int __init dsp_init(void)
 	}
 
 	/* set sample timer */
-	dsp_spl_tl.function = (void *)dsp_cmx_send;
+	dsp_spl_tl.function = dsp_cmx_send;
 	dsp_spl_tl.data = 0;
 	init_timer(&dsp_spl_tl);
 	dsp_spl_tl.expires = jiffies + dsp_tics;
diff --git a/drivers/isdn/mISDN/dsp_tones.c b/drivers/isdn/mISDN/dsp_tones.c
index 057e0d6..ed229b5 100644
--- a/drivers/isdn/mISDN/dsp_tones.c
+++ b/drivers/isdn/mISDN/dsp_tones.c
@@ -457,9 +457,9 @@ dsp_tone_hw_message(struct dsp *dsp, u8 *sample, int len)
  * timer expires *
  *****************/
 void
-dsp_tone_timeout(void *arg)
+dsp_tone_timeout(unsigned long arg)
 {
-	struct dsp *dsp = arg;
+	struct dsp *dsp = (struct dsp *)arg;
 	struct dsp_tone *tone = &dsp->tone;
 	struct pattern *pat = (struct pattern *)tone->pattern;
 	int index = tone->index;
diff --git a/drivers/isdn/mISDN/fsm.c b/drivers/isdn/mISDN/fsm.c
index 26477d4..4fa3876 100644
--- a/drivers/isdn/mISDN/fsm.c
+++ b/drivers/isdn/mISDN/fsm.c
@@ -97,8 +97,9 @@ mISDN_FsmChangeState(struct FsmInst *fi, int newstate)
 EXPORT_SYMBOL(mISDN_FsmChangeState);
 
 static void
-FsmExpireTimer(struct FsmTimer *ft)
+FsmExpireTimer(unsigned long _ft)
 {
+	struct FsmTimer *ft = (struct FsmTimer *)_ft;
 #if FSM_TIMER_DEBUG
 	if (ft->fi->debug)
 		ft->fi->printdebug(ft->fi, "FsmExpireTimer %lx", (long) ft);
@@ -110,7 +111,7 @@ void
 mISDN_FsmInitTimer(struct FsmInst *fi, struct FsmTimer *ft)
 {
 	ft->fi = fi;
-	ft->tl.function = (void *) FsmExpireTimer;
+	ft->tl.function = FsmExpireTimer;
 	ft->tl.data = (long) ft;
 #if FSM_TIMER_DEBUG
 	if (ft->fi->debug)
diff --git a/drivers/isdn/mISDN/l1oip_core.c b/drivers/isdn/mISDN/l1oip_core.c
index 67c2187..fc71e33 100644
--- a/drivers/isdn/mISDN/l1oip_core.c
+++ b/drivers/isdn/mISDN/l1oip_core.c
@@ -840,7 +840,7 @@ l1oip_send_bh(struct work_struct *work)
  * timer stuff
  */
 static void
-l1oip_keepalive(void *data)
+l1oip_keepalive(unsigned long data)
 {
 	struct l1oip *hc = (struct l1oip *)data;
 
@@ -848,7 +848,7 @@ l1oip_keepalive(void *data)
 }
 
 static void
-l1oip_timeout(void *data)
+l1oip_timeout(unsigned long data)
 {
 	struct l1oip			*hc = (struct l1oip *)data;
 	struct dchannel		*dch = hc->chan[hc->d_idx].dch;
@@ -1435,13 +1435,13 @@ init_card(struct l1oip *hc, int pri, int bundle)
 	if (ret)
 		return ret;
 
-	hc->keep_tl.function = (void *)l1oip_keepalive;
+	hc->keep_tl.function = l1oip_keepalive;
 	hc->keep_tl.data = (ulong)hc;
 	init_timer(&hc->keep_tl);
 	hc->keep_tl.expires = jiffies + 2 * HZ; /* two seconds first time */
 	add_timer(&hc->keep_tl);
 
-	hc->timeout_tl.function = (void *)l1oip_timeout;
+	hc->timeout_tl.function = l1oip_timeout;
 	hc->timeout_tl.data = (ulong)hc;
 	init_timer(&hc->timeout_tl);
 	hc->timeout_on = 0; /* state that we have timer off */
diff --git a/drivers/leds/leds-clevo-mail.c b/drivers/leds/leds-clevo-mail.c
index 0f9ed1e..2715d6f 100644
--- a/drivers/leds/leds-clevo-mail.c
+++ b/drivers/leds/leds-clevo-mail.c
@@ -40,7 +40,7 @@ static int __init clevo_mail_led_dmi_callback(const struct dmi_system_id *id)
  * detected as working, but in reality it is not) as low as
  * possible.
  */
-static struct dmi_system_id clevo_mail_led_dmi_table[] __initdata = {
+static struct dmi_system_id clevo_mail_led_dmi_table[] __initconst = {
 	{
 		.callback = clevo_mail_led_dmi_callback,
 		.ident = "Clevo D410J",
diff --git a/drivers/leds/leds-ss4200.c b/drivers/leds/leds-ss4200.c
index 046cb70..6b20d39 100644
--- a/drivers/leds/leds-ss4200.c
+++ b/drivers/leds/leds-ss4200.c
@@ -91,7 +91,7 @@ MODULE_PARM_DESC(nodetect, "Skip DMI-based hardware detection");
  * detected as working, but in reality it is not) as low as
  * possible.
  */
-static struct dmi_system_id nas_led_whitelist[] __initdata = {
+static struct dmi_system_id nas_led_whitelist[] __initconst = {
 	{
 		.callback = ss4200_led_dmi_callback,
 		.ident = "Intel SS4200-E",
diff --git a/drivers/lguest/core.c b/drivers/lguest/core.c
index 9e385b3..7077882 100644
--- a/drivers/lguest/core.c
+++ b/drivers/lguest/core.c
@@ -87,7 +87,7 @@ static __init int map_switcher(void)
 	 * Copy in the compiled-in Switcher code (from x86/switcher_32.S).
 	 * It goes in the first page, which we map in momentarily.
 	 */
-	memcpy(kmap(lg_switcher_pages[0]), start_switcher_text,
+	memcpy(kmap(lg_switcher_pages[0]), (void *)ktla_ktva((unsigned long)start_switcher_text),
 	       end_switcher_text - start_switcher_text);
 	kunmap(lg_switcher_pages[0]);
 
@@ -106,9 +106,16 @@ static __init int map_switcher(void)
 	 * We want the switcher text to be read-only and executable, and
 	 * the stacks to be read-write and non-executable.
 	 */
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+	switcher_text_vma = __get_vm_area(PAGE_SIZE, VM_ALLOC|VM_NO_GUARD|VM_KERNEXEC,
+					  switcher_addr,
+					  switcher_addr + PAGE_SIZE);
+#else
 	switcher_text_vma = __get_vm_area(PAGE_SIZE, VM_ALLOC|VM_NO_GUARD,
 					  switcher_addr,
 					  switcher_addr + PAGE_SIZE);
+#endif
 
 	if (!switcher_text_vma) {
 		err = -ENOMEM;
diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c
index e3abebc9..6a35328 100644
--- a/drivers/lguest/page_tables.c
+++ b/drivers/lguest/page_tables.c
@@ -585,7 +585,7 @@ void pin_page(struct lg_cpu *cpu, unsigned long vaddr)
 /*:*/
 
 #ifdef CONFIG_X86_PAE
-static void release_pmd(pmd_t *spmd)
+static void __intentional_overflow(-1) release_pmd(pmd_t *spmd)
 {
 	/* If the entry's not present, there's nothing to release. */
 	if (pmd_flags(*spmd) & _PAGE_PRESENT) {
diff --git a/drivers/lguest/x86/core.c b/drivers/lguest/x86/core.c
index adc162c..5ecc00b 100644
--- a/drivers/lguest/x86/core.c
+++ b/drivers/lguest/x86/core.c
@@ -60,7 +60,7 @@ static struct {
 /* Offset from where switcher.S was compiled to where we've copied it */
 static unsigned long switcher_offset(void)
 {
-	return switcher_addr - (unsigned long)start_switcher_text;
+	return switcher_addr - ktla_ktva((unsigned long)start_switcher_text);
 }
 
 /* This cpu's struct lguest_pages (after the Switcher text page) */
@@ -100,7 +100,13 @@ static void copy_in_guest_info(struct lg_cpu *cpu, struct lguest_pages *pages)
 	 * These copies are pretty cheap, so we do them unconditionally: */
 	/* Save the current Host top-level page directory.
 	 */
+
+#ifdef CONFIG_PAX_PER_CPU_PGD
+	pages->state.host_cr3 = read_cr3();
+#else
 	pages->state.host_cr3 = __pa(current->mm->pgd);
+#endif
+
 	/*
 	 * Set up the Guest's page tables to see this CPU's pages (and no
 	 * other CPU's pages).
@@ -498,7 +504,7 @@ void __init lguest_arch_host_init(void)
 	 * compiled-in switcher code and the high-mapped copy we just made.
 	 */
 	for (i = 0; i < IDT_ENTRIES; i++)
-		default_idt_entries[i] += switcher_offset();
+		default_idt_entries[i] = ktla_ktva(default_idt_entries[i]) + switcher_offset();
 
 	/*
 	 * Set up the Switcher's per-cpu areas.
@@ -581,7 +587,7 @@ void __init lguest_arch_host_init(void)
 	 * it will be undisturbed when we switch.  To change %cs and jump we
 	 * need this structure to feed to Intel's "lcall" instruction.
 	 */
-	lguest_entry.offset = (long)switch_to_guest + switcher_offset();
+	lguest_entry.offset = ktla_ktva((unsigned long)switch_to_guest) + switcher_offset();
 	lguest_entry.segment = LGUEST_CS;
 
 	/*
diff --git a/drivers/lguest/x86/switcher_32.S b/drivers/lguest/x86/switcher_32.S
index 40634b0..4f5855e 100644
--- a/drivers/lguest/x86/switcher_32.S
+++ b/drivers/lguest/x86/switcher_32.S
@@ -87,6 +87,7 @@
 #include <asm/page.h>
 #include <asm/segment.h>
 #include <asm/lguest.h>
+#include <asm/processor-flags.h>
 
 // We mark the start of the code to copy
 // It's placed in .text tho it's never run here
@@ -149,6 +150,13 @@ ENTRY(switch_to_guest)
 	// Changes type when we load it: damn Intel!
 	// For after we switch over our page tables
 	// That entry will be read-only: we'd crash.
+
+#ifdef CONFIG_PAX_KERNEXEC
+	mov	%cr0, %edx
+	xor	$X86_CR0_WP, %edx
+	mov	%edx, %cr0
+#endif
+
 	movl	$(GDT_ENTRY_TSS*8), %edx
 	ltr	%dx
 
@@ -157,9 +165,15 @@ ENTRY(switch_to_guest)
 	// Let's clear it again for our return.
 	// The GDT descriptor of the Host
 	// Points to the table after two "size" bytes
-	movl	(LGUEST_PAGES_host_gdt_desc+2)(%eax), %edx
+	movl	(LGUEST_PAGES_host_gdt_desc+2)(%eax), %eax
 	// Clear "used" from type field (byte 5, bit 2)
-	andb	$0xFD, (GDT_ENTRY_TSS*8 + 5)(%edx)
+	andb	$0xFD, (GDT_ENTRY_TSS*8 + 5)(%eax)
+
+#ifdef CONFIG_PAX_KERNEXEC
+	mov	%cr0, %eax
+	xor	$X86_CR0_WP, %eax
+	mov	%eax, %cr0
+#endif
 
 	// Once our page table's switched, the Guest is live!
 	// The Host fades as we run this final step.
@@ -295,13 +309,12 @@ deliver_to_host:
 	// I consulted gcc, and it gave
 	// These instructions, which I gladly credit:
 	leal	(%edx,%ebx,8), %eax
-	movzwl	(%eax),%edx
-	movl	4(%eax), %eax
-	xorw	%ax, %ax
-	orl	%eax, %edx
+	movl	4(%eax), %edx
+	movw	(%eax), %dx
 	// Now the address of the handler's in %edx
 	// We call it now: its "iret" drops us home.
-	jmp	*%edx
+	ljmp	$__KERNEL_CS, $1f
+1:	jmp	*%edx
 
 // Every interrupt can come to us here
 // But we must truly tell each apart.
diff --git a/drivers/lightnvm/rrpc.c b/drivers/lightnvm/rrpc.c
index 3ab6495..457e2ea 100644
--- a/drivers/lightnvm/rrpc.c
+++ b/drivers/lightnvm/rrpc.c
@@ -241,7 +241,7 @@ static void rrpc_put_blks(struct rrpc *rrpc)
 
 static struct rrpc_lun *get_next_lun(struct rrpc *rrpc)
 {
-	int next = atomic_inc_return(&rrpc->next_lun);
+	int next = atomic_inc_return_unchecked(&rrpc->next_lun);
 
 	return &rrpc->luns[next % rrpc->nr_luns];
 }
@@ -1390,7 +1390,7 @@ static void *rrpc_init(struct nvm_dev *dev, struct gendisk *tdisk,
 	rrpc->nr_luns = lun_end - lun_begin + 1;
 
 	/* simple round-robin strategy */
-	atomic_set(&rrpc->next_lun, -1);
+	atomic_set_unchecked(&rrpc->next_lun, -1);
 
 	ret = rrpc_area_init(rrpc, &soffset);
 	if (ret < 0) {
diff --git a/drivers/lightnvm/rrpc.h b/drivers/lightnvm/rrpc.h
index 2653484..d581105 100644
--- a/drivers/lightnvm/rrpc.h
+++ b/drivers/lightnvm/rrpc.h
@@ -111,7 +111,7 @@ struct rrpc {
 	/* Write strategy variables. Move these into each for structure for each
 	 * strategy
 	 */
-	atomic_t next_lun; /* Whenever a page is written, this is updated
+	atomic_unchecked_t next_lun; /* Whenever a page is written, this is updated
 			    * to point to the next write lun
 			    */
 
diff --git a/drivers/md/bcache/Kconfig b/drivers/md/bcache/Kconfig
index 4d20088..de60cb2 100644
--- a/drivers/md/bcache/Kconfig
+++ b/drivers/md/bcache/Kconfig
@@ -20,6 +20,7 @@ config BCACHE_CLOSURES_DEBUG
 	bool "Debug closures"
 	depends on BCACHE
 	select DEBUG_FS
+	depends on !GRKERNSEC_KMEM
 	---help---
 	Keeps all active closures in a linked list and provides a debugfs
 	interface to list them, which makes it possible to see asynchronous
diff --git a/drivers/md/bcache/alloc.c b/drivers/md/bcache/alloc.c
index 8eeab72..292b65d 100644
--- a/drivers/md/bcache/alloc.c
+++ b/drivers/md/bcache/alloc.c
@@ -633,7 +633,7 @@ bool bch_alloc_sectors(struct cache_set *c, struct bkey *k, unsigned sectors,
 	for (i = 0; i < KEY_PTRS(&b->key); i++) {
 		SET_PTR_OFFSET(&b->key, i, PTR_OFFSET(&b->key, i) + sectors);
 
-		atomic_long_add(sectors,
+		atomic_long_add_unchecked(sectors,
 				&PTR_CACHE(c, &b->key, i)->sectors_written);
 	}
 
diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
index 6b420a5..d5acb8f 100644
--- a/drivers/md/bcache/bcache.h
+++ b/drivers/md/bcache/bcache.h
@@ -433,12 +433,12 @@ struct cache {
 
 	/* The rest of this all shows up in sysfs */
 #define IO_ERROR_SHIFT		20
-	atomic_t		io_errors;
-	atomic_t		io_count;
+	atomic_unchecked_t	io_errors;
+	atomic_unchecked_t	io_count;
 
-	atomic_long_t		meta_sectors_written;
-	atomic_long_t		btree_sectors_written;
-	atomic_long_t		sectors_written;
+	atomic_long_unchecked_t	meta_sectors_written;
+	atomic_long_unchecked_t	btree_sectors_written;
+	atomic_long_unchecked_t	sectors_written;
 };
 
 struct gc_stat {
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 22b9e34..d8406e7 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -337,15 +337,17 @@ static void btree_complete_write(struct btree *b, struct btree_write *w)
 	w->journal	= NULL;
 }
 
-static void btree_node_write_unlock(struct closure *cl)
+static void btree_node_write_unlock(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct btree *b = container_of(cl, struct btree, io);
 
 	up(&b->io_mutex);
 }
 
-static void __btree_node_write_done(struct closure *cl)
+static void __btree_node_write_done(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct btree *b = container_of(cl, struct btree, io);
 	struct btree_write *w = btree_prev_write(b);
 
@@ -359,8 +361,9 @@ static void __btree_node_write_done(struct closure *cl)
 	closure_return_with_destructor(cl, btree_node_write_unlock);
 }
 
-static void btree_node_write_done(struct closure *cl)
+static void btree_node_write_done(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct btree *b = container_of(cl, struct btree, io);
 	struct bio_vec *bv;
 	int n;
@@ -368,7 +371,7 @@ static void btree_node_write_done(struct closure *cl)
 	bio_for_each_segment_all(bv, b->bio, n)
 		__free_page(bv->bv_page);
 
-	__btree_node_write_done(cl);
+	__btree_node_write_done(&cl->work);
 }
 
 static void btree_node_write_endio(struct bio *bio)
@@ -468,7 +471,7 @@ void __bch_btree_node_write(struct btree *b, struct closure *parent)
 
 	do_btree_node_write(b);
 
-	atomic_long_add(set_blocks(i, block_bytes(b->c)) * b->c->sb.block_size,
+	atomic_long_add_unchecked(set_blocks(i, block_bytes(b->c)) * b->c->sb.block_size,
 			&PTR_CACHE(b->c, &b->key, 0)->btree_sectors_written);
 
 	b->written += set_blocks(i, block_bytes(b->c));
diff --git a/drivers/md/bcache/closure.c b/drivers/md/bcache/closure.c
index 9eaf1d6..86e6fa1 100644
--- a/drivers/md/bcache/closure.c
+++ b/drivers/md/bcache/closure.c
@@ -29,12 +29,12 @@ static inline void closure_put_after_sub(struct closure *cl, int flags)
 			closure_queue(cl);
 		} else {
 			struct closure *parent = cl->parent;
-			closure_fn *destructor = cl->fn;
+			work_func_t destructor = cl->fn;
 
 			closure_debug_destroy(cl);
 
 			if (destructor)
-				destructor(cl);
+				destructor(&cl->work);
 
 			if (parent)
 				closure_put(parent);
diff --git a/drivers/md/bcache/closure.h b/drivers/md/bcache/closure.h
index 782cc2c..34864f4 100644
--- a/drivers/md/bcache/closure.h
+++ b/drivers/md/bcache/closure.h
@@ -151,7 +151,7 @@ struct closure {
 			struct workqueue_struct *wq;
 			struct task_struct	*task;
 			struct llist_node	list;
-			closure_fn		*fn;
+			work_func_t		fn;
 		};
 		struct work_struct	work;
 	};
@@ -235,10 +235,10 @@ static inline void closure_set_stopped(struct closure *cl)
 	atomic_sub(CLOSURE_RUNNING, &cl->remaining);
 }
 
-static inline void set_closure_fn(struct closure *cl, closure_fn *fn,
+static inline void set_closure_fn(struct closure *cl, work_func_t fn,
 				  struct workqueue_struct *wq)
 {
-	BUG_ON(object_is_on_stack(cl));
+	BUG_ON(object_starts_on_stack(cl));
 	closure_set_ip(cl);
 	cl->fn = fn;
 	cl->wq = wq;
@@ -253,7 +253,7 @@ static inline void closure_queue(struct closure *cl)
 		INIT_WORK(&cl->work, cl->work.func);
 		BUG_ON(!queue_work(wq, &cl->work));
 	} else
-		cl->fn(cl);
+		cl->fn(&cl->work);
 }
 
 /**
@@ -372,7 +372,7 @@ do {									\
  * asynchronously out of a new closure - @parent will then wait for @cl to
  * finish.
  */
-static inline void closure_call(struct closure *cl, closure_fn fn,
+static inline void closure_call(struct closure *cl, work_func_t fn,
 				struct workqueue_struct *wq,
 				struct closure *parent)
 {
diff --git a/drivers/md/bcache/io.c b/drivers/md/bcache/io.c
index 86a0bb8..0832b32 100644
--- a/drivers/md/bcache/io.c
+++ b/drivers/md/bcache/io.c
@@ -61,7 +61,7 @@ void bch_count_io_errors(struct cache *ca, int error, const char *m)
 	 */
 
 	if (ca->set->error_decay) {
-		unsigned count = atomic_inc_return(&ca->io_count);
+		unsigned count = atomic_inc_return_unchecked(&ca->io_count);
 
 		while (count > ca->set->error_decay) {
 			unsigned errors;
@@ -73,16 +73,16 @@ void bch_count_io_errors(struct cache *ca, int error, const char *m)
 			 * succesfully do so, we rescale the errors once:
 			 */
 
-			count = atomic_cmpxchg(&ca->io_count, old, new);
+			count = atomic_cmpxchg_unchecked(&ca->io_count, old, new);
 
 			if (count == old) {
 				count = new;
 
-				errors = atomic_read(&ca->io_errors);
+				errors = atomic_read_unchecked(&ca->io_errors);
 				do {
 					old = errors;
 					new = ((uint64_t) errors * 127) / 128;
-					errors = atomic_cmpxchg(&ca->io_errors,
+					errors = atomic_cmpxchg_unchecked(&ca->io_errors,
 								old, new);
 				} while (old != errors);
 			}
@@ -91,7 +91,7 @@ void bch_count_io_errors(struct cache *ca, int error, const char *m)
 
 	if (error) {
 		char buf[BDEVNAME_SIZE];
-		unsigned errors = atomic_add_return(1 << IO_ERROR_SHIFT,
+		unsigned errors = atomic_add_return_unchecked(1 << IO_ERROR_SHIFT,
 						    &ca->io_errors);
 		errors >>= IO_ERROR_SHIFT;
 
diff --git a/drivers/md/bcache/journal.c b/drivers/md/bcache/journal.c
index 29eba72..1d0108a 100644
--- a/drivers/md/bcache/journal.c
+++ b/drivers/md/bcache/journal.c
@@ -555,10 +555,11 @@ static void journal_write_endio(struct bio *bio)
 	closure_put(&w->c->journal.io);
 }
 
-static void journal_write(struct closure *);
+static void journal_write(struct work_struct *);
 
-static void journal_write_done(struct closure *cl)
+static void journal_write_done(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct journal *j = container_of(cl, struct journal, io);
 	struct journal_write *w = (j->cur == j->w)
 		? &j->w[1]
@@ -568,17 +569,19 @@ static void journal_write_done(struct closure *cl)
 	continue_at_nobarrier(cl, journal_write, system_wq);
 }
 
-static void journal_write_unlock(struct closure *cl)
+static void journal_write_unlock(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct cache_set *c = container_of(cl, struct cache_set, journal.io);
 
 	c->journal.io_in_flight = 0;
 	spin_unlock(&c->journal.lock);
 }
 
-static void journal_write_unlocked(struct closure *cl)
+static void journal_write_unlocked(struct work_struct *work)
 	__releases(c->journal.lock)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct cache_set *c = container_of(cl, struct cache_set, journal.io);
 	struct cache *ca;
 	struct journal_write *w = c->journal.cur;
@@ -621,7 +624,7 @@ static void journal_write_unlocked(struct closure *cl)
 		ca = PTR_CACHE(c, k, i);
 		bio = &ca->journal.bio;
 
-		atomic_long_add(sectors, &ca->meta_sectors_written);
+		atomic_long_add_unchecked(sectors, &ca->meta_sectors_written);
 
 		bio_reset(bio);
 		bio->bi_iter.bi_sector	= PTR_OFFSET(k, i);
@@ -653,12 +656,13 @@ static void journal_write_unlocked(struct closure *cl)
 	continue_at(cl, journal_write_done, NULL);
 }
 
-static void journal_write(struct closure *cl)
+static void journal_write(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct cache_set *c = container_of(cl, struct cache_set, journal.io);
 
 	spin_lock(&c->journal.lock);
-	journal_write_unlocked(cl);
+	journal_write_unlocked(&cl->work);
 }
 
 static void journal_try_write(struct cache_set *c)
diff --git a/drivers/md/bcache/movinggc.c b/drivers/md/bcache/movinggc.c
index b929fc9..4557031 100644
--- a/drivers/md/bcache/movinggc.c
+++ b/drivers/md/bcache/movinggc.c
@@ -34,14 +34,16 @@ static bool moving_pred(struct keybuf *buf, struct bkey *k)
 
 /* Moving GC - IO loop */
 
-static void moving_io_destructor(struct closure *cl)
+static void moving_io_destructor(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct moving_io *io = container_of(cl, struct moving_io, cl);
 	kfree(io);
 }
 
-static void write_moving_finish(struct closure *cl)
+static void write_moving_finish(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct moving_io *io = container_of(cl, struct moving_io, cl);
 	struct bio *bio = &io->bio.bio;
 	struct bio_vec *bv;
@@ -92,8 +94,9 @@ static void moving_init(struct moving_io *io)
 	bch_bio_map(bio, NULL);
 }
 
-static void write_moving(struct closure *cl)
+static void write_moving(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct moving_io *io = container_of(cl, struct moving_io, cl);
 	struct data_insert_op *op = &io->op;
 
@@ -116,8 +119,9 @@ static void write_moving(struct closure *cl)
 	continue_at(cl, write_moving_finish, op->wq);
 }
 
-static void read_moving_submit(struct closure *cl)
+static void read_moving_submit(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct moving_io *io = container_of(cl, struct moving_io, cl);
 	struct bio *bio = &io->bio.bio;
 
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index 25fa844..8181a97 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -24,7 +24,7 @@
 
 struct kmem_cache *bch_search_cache;
 
-static void bch_data_insert_start(struct closure *);
+static void bch_data_insert_start(struct work_struct *);
 
 static unsigned cache_mode(struct cached_dev *dc, struct bio *bio)
 {
@@ -53,8 +53,9 @@ static void bio_csum(struct bio *bio, struct bkey *k)
 
 /* Insert data into cache */
 
-static void bch_data_insert_keys(struct closure *cl)
+static void bch_data_insert_keys(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct data_insert_op *op = container_of(cl, struct data_insert_op, cl);
 	atomic_t *journal_ref = NULL;
 	struct bkey *replace_key = op->replace ? &op->replace_key : NULL;
@@ -143,8 +144,9 @@ out:
 	continue_at(cl, bch_data_insert_keys, op->wq);
 }
 
-static void bch_data_insert_error(struct closure *cl)
+static void bch_data_insert_error(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct data_insert_op *op = container_of(cl, struct data_insert_op, cl);
 
 	/*
@@ -170,7 +172,7 @@ static void bch_data_insert_error(struct closure *cl)
 
 	op->insert_keys.top = dst;
 
-	bch_data_insert_keys(cl);
+	bch_data_insert_keys(&cl->work);
 }
 
 static void bch_data_insert_endio(struct bio *bio)
@@ -191,8 +193,9 @@ static void bch_data_insert_endio(struct bio *bio)
 	bch_bbio_endio(op->c, bio, bio->bi_error, "writing data to cache");
 }
 
-static void bch_data_insert_start(struct closure *cl)
+static void bch_data_insert_start(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct data_insert_op *op = container_of(cl, struct data_insert_op, cl);
 	struct bio *bio = op->bio, *n;
 
@@ -313,8 +316,9 @@ err:
  * If s->bypass is true, instead of inserting the data it invalidates the
  * region of the cache represented by s->cache_bio and op->inode.
  */
-void bch_data_insert(struct closure *cl)
+void bch_data_insert(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct data_insert_op *op = container_of(cl, struct data_insert_op, cl);
 
 	trace_bcache_write(op->c, op->inode, op->bio,
@@ -322,7 +326,7 @@ void bch_data_insert(struct closure *cl)
 
 	bch_keylist_init(&op->insert_keys);
 	bio_get(op->bio);
-	bch_data_insert_start(cl);
+	bch_data_insert_start(&cl->work);
 }
 
 /* Congested? */
@@ -570,8 +574,9 @@ static int cache_lookup_fn(struct btree_op *op, struct btree *b, struct bkey *k)
 	return n == bio ? MAP_DONE : MAP_CONTINUE;
 }
 
-static void cache_lookup(struct closure *cl)
+static void cache_lookup(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct search *s = container_of(cl, struct search, iop.cl);
 	struct bio *bio = &s->bio.bio;
 	int ret;
@@ -631,8 +636,9 @@ static void do_bio_hook(struct search *s, struct bio *orig_bio)
 	bio_cnt_set(bio, 3);
 }
 
-static void search_free(struct closure *cl)
+static void search_free(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct search *s = container_of(cl, struct search, cl);
 	bio_complete(s);
 
@@ -676,19 +682,21 @@ static inline struct search *search_alloc(struct bio *bio,
 
 /* Cached devices */
 
-static void cached_dev_bio_complete(struct closure *cl)
+static void cached_dev_bio_complete(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct search *s = container_of(cl, struct search, cl);
 	struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
 
-	search_free(cl);
+	search_free(&cl->work);
 	cached_dev_put(dc);
 }
 
 /* Process reads */
 
-static void cached_dev_cache_miss_done(struct closure *cl)
+static void cached_dev_cache_miss_done(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct search *s = container_of(cl, struct search, cl);
 
 	if (s->iop.replace_collision)
@@ -702,11 +710,12 @@ static void cached_dev_cache_miss_done(struct closure *cl)
 			__free_page(bv->bv_page);
 	}
 
-	cached_dev_bio_complete(cl);
+	cached_dev_bio_complete(&cl->work);
 }
 
-static void cached_dev_read_error(struct closure *cl)
+static void cached_dev_read_error(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct search *s = container_of(cl, struct search, cl);
 	struct bio *bio = &s->bio.bio;
 
@@ -725,8 +734,9 @@ static void cached_dev_read_error(struct closure *cl)
 	continue_at(cl, cached_dev_cache_miss_done, NULL);
 }
 
-static void cached_dev_read_done(struct closure *cl)
+static void cached_dev_read_done(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct search *s = container_of(cl, struct search, cl);
 	struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
 
@@ -765,8 +775,9 @@ static void cached_dev_read_done(struct closure *cl)
 	continue_at(cl, cached_dev_cache_miss_done, NULL);
 }
 
-static void cached_dev_read_done_bh(struct closure *cl)
+static void cached_dev_read_done_bh(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct search *s = container_of(cl, struct search, cl);
 	struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
 
@@ -864,13 +875,14 @@ static void cached_dev_read(struct cached_dev *dc, struct search *s)
 
 /* Process writes */
 
-static void cached_dev_write_complete(struct closure *cl)
+static void cached_dev_write_complete(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct search *s = container_of(cl, struct search, cl);
 	struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
 
 	up_read_non_owner(&dc->writeback_lock);
-	cached_dev_bio_complete(cl);
+	cached_dev_bio_complete(&cl->work);
 }
 
 static void cached_dev_write(struct cached_dev *dc, struct search *s)
@@ -942,8 +954,9 @@ static void cached_dev_write(struct cached_dev *dc, struct search *s)
 	continue_at(cl, cached_dev_write_complete, NULL);
 }
 
-static void cached_dev_nodata(struct closure *cl)
+static void cached_dev_nodata(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct search *s = container_of(cl, struct search, cl);
 	struct bio *bio = &s->bio.bio;
 
@@ -1063,8 +1076,9 @@ static int flash_dev_cache_miss(struct btree *b, struct search *s,
 	return MAP_CONTINUE;
 }
 
-static void flash_dev_nodata(struct closure *cl)
+static void flash_dev_nodata(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct search *s = container_of(cl, struct search, cl);
 
 	if (s->iop.flush_journal)
diff --git a/drivers/md/bcache/request.h b/drivers/md/bcache/request.h
index 1ff3687..b8f4a05 100644
--- a/drivers/md/bcache/request.h
+++ b/drivers/md/bcache/request.h
@@ -33,7 +33,7 @@ struct data_insert_op {
 };
 
 unsigned bch_get_congested(struct cache_set *);
-void bch_data_insert(struct closure *cl);
+void bch_data_insert(struct work_struct *work);
 
 void bch_cached_dev_request_init(struct cached_dev *dc);
 void bch_flash_dev_request_init(struct bcache_device *d);
diff --git a/drivers/md/bcache/stats.c b/drivers/md/bcache/stats.c
index 0ca072c..5e6e5c3 100644
--- a/drivers/md/bcache/stats.c
+++ b/drivers/md/bcache/stats.c
@@ -120,7 +120,7 @@ void bch_cache_accounting_destroy(struct cache_accounting *acc)
 	kobject_put(&acc->hour.kobj);
 	kobject_put(&acc->day.kobj);
 
-	atomic_set(&acc->closing, 1);
+	atomic_set_unchecked(&acc->closing, 1);
 	if (del_timer_sync(&acc->timer))
 		closure_return(&acc->cl);
 }
@@ -151,7 +151,7 @@ static void scale_accounting(unsigned long data)
 	struct cache_accounting *acc = (struct cache_accounting *) data;
 
 #define move_stat(name) do {						\
-	unsigned t = atomic_xchg(&acc->collector.name, 0);		\
+	unsigned t = atomic_xchg_unchecked(&acc->collector.name, 0);	\
 	t <<= 16;							\
 	acc->five_minute.name += t;					\
 	acc->hour.name += t;						\
@@ -174,7 +174,7 @@ static void scale_accounting(unsigned long data)
 
 	acc->timer.expires += accounting_delay;
 
-	if (!atomic_read(&acc->closing))
+	if (!atomic_read_unchecked(&acc->closing))
 		add_timer(&acc->timer);
 	else
 		closure_return(&acc->cl);
@@ -185,14 +185,14 @@ static void mark_cache_stats(struct cache_stat_collector *stats,
 {
 	if (!bypass)
 		if (hit)
-			atomic_inc(&stats->cache_hits);
+			atomic_inc_unchecked(&stats->cache_hits);
 		else
-			atomic_inc(&stats->cache_misses);
+			atomic_inc_unchecked(&stats->cache_misses);
 	else
 		if (hit)
-			atomic_inc(&stats->cache_bypass_hits);
+			atomic_inc_unchecked(&stats->cache_bypass_hits);
 		else
-			atomic_inc(&stats->cache_bypass_misses);
+			atomic_inc_unchecked(&stats->cache_bypass_misses);
 }
 
 void bch_mark_cache_accounting(struct cache_set *c, struct bcache_device *d,
@@ -206,22 +206,22 @@ void bch_mark_cache_accounting(struct cache_set *c, struct bcache_device *d,
 void bch_mark_cache_readahead(struct cache_set *c, struct bcache_device *d)
 {
 	struct cached_dev *dc = container_of(d, struct cached_dev, disk);
-	atomic_inc(&dc->accounting.collector.cache_readaheads);
-	atomic_inc(&c->accounting.collector.cache_readaheads);
+	atomic_inc_unchecked(&dc->accounting.collector.cache_readaheads);
+	atomic_inc_unchecked(&c->accounting.collector.cache_readaheads);
 }
 
 void bch_mark_cache_miss_collision(struct cache_set *c, struct bcache_device *d)
 {
 	struct cached_dev *dc = container_of(d, struct cached_dev, disk);
-	atomic_inc(&dc->accounting.collector.cache_miss_collisions);
-	atomic_inc(&c->accounting.collector.cache_miss_collisions);
+	atomic_inc_unchecked(&dc->accounting.collector.cache_miss_collisions);
+	atomic_inc_unchecked(&c->accounting.collector.cache_miss_collisions);
 }
 
 void bch_mark_sectors_bypassed(struct cache_set *c, struct cached_dev *dc,
 			       int sectors)
 {
-	atomic_add(sectors, &dc->accounting.collector.sectors_bypassed);
-	atomic_add(sectors, &c->accounting.collector.sectors_bypassed);
+	atomic_add_unchecked(sectors, &dc->accounting.collector.sectors_bypassed);
+	atomic_add_unchecked(sectors, &c->accounting.collector.sectors_bypassed);
 }
 
 void bch_cache_accounting_init(struct cache_accounting *acc,
diff --git a/drivers/md/bcache/stats.h b/drivers/md/bcache/stats.h
index adbff14..018c2d2 100644
--- a/drivers/md/bcache/stats.h
+++ b/drivers/md/bcache/stats.h
@@ -2,13 +2,13 @@
 #define _BCACHE_STATS_H_
 
 struct cache_stat_collector {
-	atomic_t cache_hits;
-	atomic_t cache_misses;
-	atomic_t cache_bypass_hits;
-	atomic_t cache_bypass_misses;
-	atomic_t cache_readaheads;
-	atomic_t cache_miss_collisions;
-	atomic_t sectors_bypassed;
+	atomic_unchecked_t cache_hits;
+	atomic_unchecked_t cache_misses;
+	atomic_unchecked_t cache_bypass_hits;
+	atomic_unchecked_t cache_bypass_misses;
+	atomic_unchecked_t cache_readaheads;
+	atomic_unchecked_t cache_miss_collisions;
+	atomic_unchecked_t sectors_bypassed;
 };
 
 struct cache_stats {
@@ -28,7 +28,7 @@ struct cache_stats {
 struct cache_accounting {
 	struct closure		cl;
 	struct timer_list	timer;
-	atomic_t		closing;
+	atomic_unchecked_t	closing;
 
 	struct cache_stat_collector collector;
 
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index a296425..c5d881c 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -241,8 +241,9 @@ static void __write_super(struct cache_sb *sb, struct bio *bio)
 	submit_bio(REQ_WRITE, bio);
 }
 
-static void bch_write_bdev_super_unlock(struct closure *cl)
+static void bch_write_bdev_super_unlock(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct cached_dev *dc = container_of(cl, struct cached_dev, sb_write);
 
 	up(&dc->sb_write_mutex);
@@ -275,8 +276,9 @@ static void write_super_endio(struct bio *bio)
 	closure_put(&ca->set->sb_write);
 }
 
-static void bcache_write_super_unlock(struct closure *cl)
+static void bcache_write_super_unlock(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct cache_set *c = container_of(cl, struct cache_set, sb_write);
 
 	up(&c->sb_write_mutex);
@@ -326,8 +328,9 @@ static void uuid_endio(struct bio *bio)
 	closure_put(cl);
 }
 
-static void uuid_io_unlock(struct closure *cl)
+static void uuid_io_unlock(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct cache_set *c = container_of(cl, struct cache_set, uuid_write);
 
 	up(&c->uuid_write_mutex);
@@ -530,7 +533,7 @@ void bch_prio_write(struct cache *ca)
 
 	ca->disk_buckets->seq++;
 
-	atomic_long_add(ca->sb.bucket_size * prio_buckets(ca),
+	atomic_long_add_unchecked(ca->sb.bucket_size * prio_buckets(ca),
 			&ca->meta_sectors_written);
 
 	//pr_debug("free %zu, free_inc %zu, unused %zu", fifo_used(&ca->free),
@@ -1049,8 +1052,9 @@ void bch_cached_dev_release(struct kobject *kobj)
 	module_put(THIS_MODULE);
 }
 
-static void cached_dev_free(struct closure *cl)
+static void cached_dev_free(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct cached_dev *dc = container_of(cl, struct cached_dev, disk.cl);
 
 	cancel_delayed_work_sync(&dc->writeback_rate_update);
@@ -1074,8 +1078,9 @@ static void cached_dev_free(struct closure *cl)
 	kobject_put(&dc->disk.kobj);
 }
 
-static void cached_dev_flush(struct closure *cl)
+static void cached_dev_flush(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct cached_dev *dc = container_of(cl, struct cached_dev, disk.cl);
 	struct bcache_device *d = &dc->disk;
 
@@ -1191,8 +1196,9 @@ void bch_flash_dev_release(struct kobject *kobj)
 	kfree(d);
 }
 
-static void flash_dev_free(struct closure *cl)
+static void flash_dev_free(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct bcache_device *d = container_of(cl, struct bcache_device, cl);
 	mutex_lock(&bch_register_lock);
 	bcache_device_free(d);
@@ -1200,8 +1206,9 @@ static void flash_dev_free(struct closure *cl)
 	kobject_put(&d->kobj);
 }
 
-static void flash_dev_flush(struct closure *cl)
+static void flash_dev_flush(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct bcache_device *d = container_of(cl, struct bcache_device, cl);
 
 	mutex_lock(&bch_register_lock);
@@ -1320,8 +1327,9 @@ void bch_cache_set_release(struct kobject *kobj)
 	module_put(THIS_MODULE);
 }
 
-static void cache_set_free(struct closure *cl)
+static void cache_set_free(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct cache_set *c = container_of(cl, struct cache_set, cl);
 	struct cache *ca;
 	unsigned i;
@@ -1366,8 +1374,9 @@ static void cache_set_free(struct closure *cl)
 	kobject_put(&c->kobj);
 }
 
-static void cache_set_flush(struct closure *cl)
+static void cache_set_flush(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct cache_set *c = container_of(cl, struct cache_set, caching);
 	struct cache *ca;
 	struct btree *b;
@@ -1408,8 +1417,9 @@ static void cache_set_flush(struct closure *cl)
 	closure_return(cl);
 }
 
-static void __cache_set_unregister(struct closure *cl)
+static void __cache_set_unregister(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct cache_set *c = container_of(cl, struct cache_set, caching);
 	struct cached_dev *dc;
 	size_t i;
diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c
index b3ff57d..b2e30fb 100644
--- a/drivers/md/bcache/sysfs.c
+++ b/drivers/md/bcache/sysfs.c
@@ -739,15 +739,15 @@ SHOW(__bch_cache)
 	sysfs_hprint(block_size,	block_bytes(ca));
 	sysfs_print(nbuckets,		ca->sb.nbuckets);
 	sysfs_print(discard,		ca->discard);
-	sysfs_hprint(written, atomic_long_read(&ca->sectors_written) << 9);
+	sysfs_hprint(written, atomic_long_read_unchecked(&ca->sectors_written) << 9);
 	sysfs_hprint(btree_written,
-		     atomic_long_read(&ca->btree_sectors_written) << 9);
+		     atomic_long_read_unchecked(&ca->btree_sectors_written) << 9);
 	sysfs_hprint(metadata_written,
-		     (atomic_long_read(&ca->meta_sectors_written) +
-		      atomic_long_read(&ca->btree_sectors_written)) << 9);
+		     (atomic_long_read_unchecked(&ca->meta_sectors_written) +
+		      atomic_long_read_unchecked(&ca->btree_sectors_written)) << 9);
 
 	sysfs_print(io_errors,
-		    atomic_read(&ca->io_errors) >> IO_ERROR_SHIFT);
+		    atomic_read_unchecked(&ca->io_errors) >> IO_ERROR_SHIFT);
 
 	if (attr == &sysfs_cache_replacement_policy)
 		return bch_snprint_string_list(buf, PAGE_SIZE,
@@ -870,11 +870,11 @@ STORE(__bch_cache)
 	}
 
 	if (attr == &sysfs_clear_stats) {
-		atomic_long_set(&ca->sectors_written, 0);
-		atomic_long_set(&ca->btree_sectors_written, 0);
-		atomic_long_set(&ca->meta_sectors_written, 0);
-		atomic_set(&ca->io_count, 0);
-		atomic_set(&ca->io_errors, 0);
+		atomic_long_set_unchecked(&ca->sectors_written, 0);
+		atomic_long_set_unchecked(&ca->btree_sectors_written, 0);
+		atomic_long_set_unchecked(&ca->meta_sectors_written, 0);
+		atomic_set_unchecked(&ca->io_count, 0);
+		atomic_set_unchecked(&ca->io_errors, 0);
 	}
 
 	return size;
diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c
index b9346cd..708ea8f 100644
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -118,14 +118,16 @@ static void dirty_init(struct keybuf_key *w)
 	bch_bio_map(bio, NULL);
 }
 
-static void dirty_io_destructor(struct closure *cl)
+static void dirty_io_destructor(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct dirty_io *io = container_of(cl, struct dirty_io, cl);
 	kfree(io);
 }
 
-static void write_dirty_finish(struct closure *cl)
+static void write_dirty_finish(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct dirty_io *io = container_of(cl, struct dirty_io, cl);
 	struct keybuf_key *w = io->bio.bi_private;
 	struct cached_dev *dc = io->dc;
@@ -177,8 +179,9 @@ static void dirty_endio(struct bio *bio)
 	closure_put(&io->cl);
 }
 
-static void write_dirty(struct closure *cl)
+static void write_dirty(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct dirty_io *io = container_of(cl, struct dirty_io, cl);
 	struct keybuf_key *w = io->bio.bi_private;
 
@@ -204,8 +207,9 @@ static void read_dirty_endio(struct bio *bio)
 	dirty_endio(bio);
 }
 
-static void read_dirty_submit(struct closure *cl)
+static void read_dirty_submit(struct work_struct *work)
 {
+	struct closure *cl = container_of(work, struct closure, work);
 	struct dirty_io *io = container_of(cl, struct dirty_io, cl);
 
 	closure_bio_submit(&io->bio, cl);
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index 3fe86b5..fd3b459 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -1928,7 +1928,7 @@ void bitmap_status(struct seq_file *seq, struct bitmap *bitmap)
 		   chunk_kb ? "KB" : "B");
 	if (bitmap->storage.file) {
 		seq_printf(seq, ", file: ");
-		seq_file_path(seq, bitmap->storage.file, " \t\n");
+		seq_file_path(seq, bitmap->storage.file, " \t\n\\");
 	}
 
 	seq_printf(seq, "\n");
diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index ee0510f..69457f6 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -118,7 +118,7 @@ static void iot_io_end(struct io_tracker *iot, sector_t len)
  */
 struct dm_hook_info {
 	bio_end_io_t *bi_end_io;
-};
+} __no_const;
 
 static void dm_hook_bio(struct dm_hook_info *h, struct bio *bio,
 			bio_end_io_t *bi_end_io, void *bi_private)
@@ -182,16 +182,16 @@ struct cache_features {
 };
 
 struct cache_stats {
-	atomic_t read_hit;
-	atomic_t read_miss;
-	atomic_t write_hit;
-	atomic_t write_miss;
-	atomic_t demotion;
-	atomic_t promotion;
-	atomic_t copies_avoided;
-	atomic_t cache_cell_clash;
-	atomic_t commit_count;
-	atomic_t discard_count;
+	atomic_unchecked_t read_hit;
+	atomic_unchecked_t read_miss;
+	atomic_unchecked_t write_hit;
+	atomic_unchecked_t write_miss;
+	atomic_unchecked_t demotion;
+	atomic_unchecked_t promotion;
+	atomic_unchecked_t copies_avoided;
+	atomic_unchecked_t cache_cell_clash;
+	atomic_unchecked_t commit_count;
+	atomic_unchecked_t discard_count;
 };
 
 /*
@@ -270,8 +270,8 @@ struct cache {
 	atomic_t nr_io_migrations;
 
 	wait_queue_head_t quiescing_wait;
-	atomic_t quiescing;
-	atomic_t quiescing_ack;
+	atomic_unchecked_t quiescing;
+	atomic_unchecked_t quiescing_ack;
 
 	/*
 	 * cache_size entries, dirty if set
@@ -395,8 +395,10 @@ static struct dm_bio_prison_cell *alloc_prison_cell(struct cache *cache)
 	return dm_bio_prison_alloc_cell(cache->prison, GFP_NOWAIT);
 }
 
-static void free_prison_cell(struct cache *cache, struct dm_bio_prison_cell *cell)
+static void free_prison_cell(void *_cache, struct dm_bio_prison_cell *cell)
 {
+	struct cache *cache = _cache;
+
 	dm_bio_prison_free_cell(cache->prison, cell);
 }
 
@@ -493,8 +495,10 @@ static struct dm_bio_prison_cell *prealloc_get_cell(struct prealloc *p)
  * You can't have more than two cells in a prealloc struct.  BUG() will be
  * called if you try and overfill.
  */
-static void prealloc_put_cell(struct prealloc *p, struct dm_bio_prison_cell *cell)
+static void prealloc_put_cell(void *_p, struct dm_bio_prison_cell *cell)
 {
+	struct prealloc *p = _p;
+
 	if (!p->cell2)
 		p->cell2 = cell;
 
@@ -637,7 +641,7 @@ static void set_discard(struct cache *cache, dm_dblock_t b)
 	unsigned long flags;
 
 	BUG_ON(from_dblock(b) >= from_dblock(cache->discard_nr_blocks));
-	atomic_inc(&cache->stats.discard_count);
+	atomic_inc_unchecked(&cache->stats.discard_count);
 
 	spin_lock_irqsave(&cache->lock, flags);
 	set_bit(from_dblock(b), cache->discard_bitset);
@@ -685,10 +689,10 @@ static void load_stats(struct cache *cache)
 	struct dm_cache_statistics stats;
 
 	dm_cache_metadata_get_stats(cache->cmd, &stats);
-	atomic_set(&cache->stats.read_hit, stats.read_hits);
-	atomic_set(&cache->stats.read_miss, stats.read_misses);
-	atomic_set(&cache->stats.write_hit, stats.write_hits);
-	atomic_set(&cache->stats.write_miss, stats.write_misses);
+	atomic_set_unchecked(&cache->stats.read_hit, stats.read_hits);
+	atomic_set_unchecked(&cache->stats.read_miss, stats.read_misses);
+	atomic_set_unchecked(&cache->stats.write_hit, stats.write_hits);
+	atomic_set_unchecked(&cache->stats.write_miss, stats.write_misses);
 }
 
 static void save_stats(struct cache *cache)
@@ -698,10 +702,10 @@ static void save_stats(struct cache *cache)
 	if (get_cache_mode(cache) >= CM_READ_ONLY)
 		return;
 
-	stats.read_hits = atomic_read(&cache->stats.read_hit);
-	stats.read_misses = atomic_read(&cache->stats.read_miss);
-	stats.write_hits = atomic_read(&cache->stats.write_hit);
-	stats.write_misses = atomic_read(&cache->stats.write_miss);
+	stats.read_hits = atomic_read_unchecked(&cache->stats.read_hit);
+	stats.read_misses = atomic_read_unchecked(&cache->stats.read_miss);
+	stats.write_hits = atomic_read_unchecked(&cache->stats.write_hit);
+	stats.write_misses = atomic_read_unchecked(&cache->stats.write_miss);
 
 	dm_cache_metadata_set_stats(cache->cmd, &stats);
 }
@@ -1324,7 +1328,7 @@ static bool bio_writes_complete_block(struct cache *cache, struct bio *bio)
 
 static void avoid_copy(struct dm_cache_migration *mg)
 {
-	atomic_inc(&mg->cache->stats.copies_avoided);
+	atomic_inc_unchecked(&mg->cache->stats.copies_avoided);
 	migration_success_pre_commit(mg);
 }
 
@@ -1634,7 +1638,7 @@ static void process_discard_bio(struct cache *cache, struct prealloc *structs,
 
 	cell_prealloc = prealloc_get_cell(structs);
 	r = bio_detain_range(cache, dblock_to_oblock(cache, b), dblock_to_oblock(cache, e), bio, cell_prealloc,
-			     (cell_free_fn) prealloc_put_cell,
+			     prealloc_put_cell,
 			     structs, &new_ocell);
 	if (r > 0)
 		return;
@@ -1651,13 +1655,13 @@ static bool spare_migration_bandwidth(struct cache *cache)
 
 static void inc_hit_counter(struct cache *cache, struct bio *bio)
 {
-	atomic_inc(bio_data_dir(bio) == READ ?
+	atomic_inc_unchecked(bio_data_dir(bio) == READ ?
 		   &cache->stats.read_hit : &cache->stats.write_hit);
 }
 
 static void inc_miss_counter(struct cache *cache, struct bio *bio)
 {
-	atomic_inc(bio_data_dir(bio) == READ ?
+	atomic_inc_unchecked(bio_data_dir(bio) == READ ?
 		   &cache->stats.read_miss : &cache->stats.write_miss);
 }
 
@@ -1788,7 +1792,7 @@ static int cell_locker(struct policy_locker *locker, dm_oblock_t b)
 	struct dm_bio_prison_cell *cell_prealloc = prealloc_get_cell(l->structs);
 
 	return bio_detain(l->cache, b, NULL, cell_prealloc,
-			  (cell_free_fn) prealloc_put_cell,
+			  prealloc_put_cell,
 			  l->structs, &l->cell);
 }
 
@@ -1830,7 +1834,7 @@ static void process_cell(struct cache *cache, struct prealloc *structs,
 			 */
 
 			if (bio_data_dir(bio) == WRITE) {
-				atomic_inc(&cache->stats.demotion);
+				atomic_inc_unchecked(&cache->stats.demotion);
 				invalidate(cache, structs, block, lookup_result.cblock, new_ocell);
 				release_cell = false;
 
@@ -1863,14 +1867,14 @@ static void process_cell(struct cache *cache, struct prealloc *structs,
 		break;
 
 	case POLICY_NEW:
-		atomic_inc(&cache->stats.promotion);
+		atomic_inc_unchecked(&cache->stats.promotion);
 		promote(cache, structs, block, lookup_result.cblock, new_ocell);
 		release_cell = false;
 		break;
 
 	case POLICY_REPLACE:
-		atomic_inc(&cache->stats.demotion);
-		atomic_inc(&cache->stats.promotion);
+		atomic_inc_unchecked(&cache->stats.demotion);
+		atomic_inc_unchecked(&cache->stats.promotion);
 		demote_then_promote(cache, structs, lookup_result.old_oblock,
 				    block, lookup_result.cblock,
 				    ool.cell, new_ocell);
@@ -1900,7 +1904,7 @@ static void process_bio(struct cache *cache, struct prealloc *structs,
 	 */
 	cell_prealloc = prealloc_get_cell(structs);
 	r = bio_detain(cache, block, bio, cell_prealloc,
-		       (cell_free_fn) prealloc_put_cell,
+		       prealloc_put_cell,
 		       structs, &new_ocell);
 	if (r > 0)
 		return;
@@ -1924,7 +1928,7 @@ static int commit(struct cache *cache, bool clean_shutdown)
 	if (get_cache_mode(cache) >= CM_READ_ONLY)
 		return -EINVAL;
 
-	atomic_inc(&cache->stats.commit_count);
+	atomic_inc_unchecked(&cache->stats.commit_count);
 	r = dm_cache_commit(cache->cmd, clean_shutdown);
 	if (r)
 		metadata_operation_failed(cache, "dm_cache_commit", r);
@@ -2155,32 +2159,32 @@ static void process_invalidation_requests(struct cache *cache)
  *--------------------------------------------------------------*/
 static bool is_quiescing(struct cache *cache)
 {
-	return atomic_read(&cache->quiescing);
+	return atomic_read_unchecked(&cache->quiescing);
 }
 
 static void ack_quiescing(struct cache *cache)
 {
 	if (is_quiescing(cache)) {
-		atomic_inc(&cache->quiescing_ack);
+		atomic_inc_unchecked(&cache->quiescing_ack);
 		wake_up(&cache->quiescing_wait);
 	}
 }
 
 static void wait_for_quiescing_ack(struct cache *cache)
 {
-	wait_event(cache->quiescing_wait, atomic_read(&cache->quiescing_ack));
+	wait_event(cache->quiescing_wait, atomic_read_unchecked(&cache->quiescing_ack));
 }
 
 static void start_quiescing(struct cache *cache)
 {
-	atomic_inc(&cache->quiescing);
+	atomic_inc_unchecked(&cache->quiescing);
 	wait_for_quiescing_ack(cache);
 }
 
 static void stop_quiescing(struct cache *cache)
 {
-	atomic_set(&cache->quiescing, 0);
-	atomic_set(&cache->quiescing_ack, 0);
+	atomic_set_unchecked(&cache->quiescing, 0);
+	atomic_set_unchecked(&cache->quiescing_ack, 0);
 }
 
 static void wait_for_migrations(struct cache *cache)
@@ -2867,8 +2871,8 @@ static int cache_create(struct cache_args *ca, struct cache **result)
 	init_waitqueue_head(&cache->migration_wait);
 
 	init_waitqueue_head(&cache->quiescing_wait);
-	atomic_set(&cache->quiescing, 0);
-	atomic_set(&cache->quiescing_ack, 0);
+	atomic_set_unchecked(&cache->quiescing, 0);
+	atomic_set_unchecked(&cache->quiescing_ack, 0);
 
 	r = -ENOMEM;
 	atomic_set(&cache->nr_dirty, 0);
@@ -2935,12 +2939,12 @@ static int cache_create(struct cache_args *ca, struct cache **result)
 
 	load_stats(cache);
 
-	atomic_set(&cache->stats.demotion, 0);
-	atomic_set(&cache->stats.promotion, 0);
-	atomic_set(&cache->stats.copies_avoided, 0);
-	atomic_set(&cache->stats.cache_cell_clash, 0);
-	atomic_set(&cache->stats.commit_count, 0);
-	atomic_set(&cache->stats.discard_count, 0);
+	atomic_set_unchecked(&cache->stats.demotion, 0);
+	atomic_set_unchecked(&cache->stats.promotion, 0);
+	atomic_set_unchecked(&cache->stats.copies_avoided, 0);
+	atomic_set_unchecked(&cache->stats.cache_cell_clash, 0);
+	atomic_set_unchecked(&cache->stats.commit_count, 0);
+	atomic_set_unchecked(&cache->stats.discard_count, 0);
 
 	spin_lock_init(&cache->invalidation_lock);
 	INIT_LIST_HEAD(&cache->invalidation_requests);
@@ -3057,7 +3061,7 @@ static int cache_map(struct dm_target *ti, struct bio *bio)
 	}
 
 	r = bio_detain(cache, block, bio, cell,
-		       (cell_free_fn) free_prison_cell,
+		       free_prison_cell,
 		       cache, &cell);
 	if (r) {
 		if (r < 0)
@@ -3551,12 +3555,12 @@ static void cache_status(struct dm_target *ti, status_type_t type,
 		       cache->sectors_per_block,
 		       (unsigned long long) from_cblock(residency),
 		       (unsigned long long) from_cblock(cache->cache_size),
-		       (unsigned) atomic_read(&cache->stats.read_hit),
-		       (unsigned) atomic_read(&cache->stats.read_miss),
-		       (unsigned) atomic_read(&cache->stats.write_hit),
-		       (unsigned) atomic_read(&cache->stats.write_miss),
-		       (unsigned) atomic_read(&cache->stats.demotion),
-		       (unsigned) atomic_read(&cache->stats.promotion),
+		       (unsigned) atomic_read_unchecked(&cache->stats.read_hit),
+		       (unsigned) atomic_read_unchecked(&cache->stats.read_miss),
+		       (unsigned) atomic_read_unchecked(&cache->stats.write_hit),
+		       (unsigned) atomic_read_unchecked(&cache->stats.write_miss),
+		       (unsigned) atomic_read_unchecked(&cache->stats.demotion),
+		       (unsigned) atomic_read_unchecked(&cache->stats.promotion),
 		       (unsigned long) atomic_read(&cache->nr_dirty));
 
 		if (writethrough_mode(&cache->features))
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index 2adf81d..c3e8e3c 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -1774,7 +1774,7 @@ static int validate_params(uint cmd, struct dm_ioctl *param)
 	    cmd == DM_LIST_VERSIONS_CMD)
 		return 0;
 
-	if ((cmd == DM_DEV_CREATE_CMD)) {
+	if (cmd == DM_DEV_CREATE_CMD) {
 		if (!*param->name) {
 			DMWARN("name not supplied when creating device");
 			return -EINVAL;
diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index a090121..9f14702 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -1452,7 +1452,7 @@ static void raid_status(struct dm_target *ti, status_type_t type,
 		DMEMIT(" %llu",
 		       (strcmp(rs->md.last_sync_action, "check")) ? 0 :
 		       (unsigned long long)
-		       atomic64_read(&rs->md.resync_mismatches));
+		       atomic64_read_unchecked(&rs->md.resync_mismatches));
 		break;
 	case STATUSTYPE_TABLE:
 		/* The string you would use to construct this array */
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index b3ccf1e..c3a34f3 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -42,7 +42,7 @@ enum dm_raid1_error {
 
 struct mirror {
 	struct mirror_set *ms;
-	atomic_t error_count;
+	atomic_unchecked_t error_count;
 	unsigned long error_type;
 	struct dm_dev *dev;
 	sector_t offset;
@@ -188,7 +188,7 @@ static struct mirror *get_valid_mirror(struct mirror_set *ms)
 	struct mirror *m;
 
 	for (m = ms->mirror; m < ms->mirror + ms->nr_mirrors; m++)
-		if (!atomic_read(&m->error_count))
+		if (!atomic_read_unchecked(&m->error_count))
 			return m;
 
 	return NULL;
@@ -220,7 +220,7 @@ static void fail_mirror(struct mirror *m, enum dm_raid1_error error_type)
 	 * simple way to tell if a device has encountered
 	 * errors.
 	 */
-	atomic_inc(&m->error_count);
+	atomic_inc_unchecked(&m->error_count);
 
 	if (test_and_set_bit(error_type, &m->error_type))
 		return;
@@ -378,7 +378,7 @@ static void reset_ms_flags(struct mirror_set *ms)
 
 	ms->leg_failure = 0;
 	for (m = 0; m < ms->nr_mirrors; m++) {
-		atomic_set(&(ms->mirror[m].error_count), 0);
+		atomic_set_unchecked(&(ms->mirror[m].error_count), 0);
 		ms->mirror[m].error_type = 0;
 	}
 }
@@ -423,7 +423,7 @@ static struct mirror *choose_mirror(struct mirror_set *ms, sector_t sector)
 	struct mirror *m = get_default_mirror(ms);
 
 	do {
-		if (likely(!atomic_read(&m->error_count)))
+		if (likely(!atomic_read_unchecked(&m->error_count)))
 			return m;
 
 		if (m-- == ms->mirror)
@@ -437,7 +437,7 @@ static int default_ok(struct mirror *m)
 {
 	struct mirror *default_mirror = get_default_mirror(m->ms);
 
-	return !atomic_read(&default_mirror->error_count);
+	return !atomic_read_unchecked(&default_mirror->error_count);
 }
 
 static int mirror_available(struct mirror_set *ms, struct bio *bio)
@@ -576,7 +576,7 @@ static void do_reads(struct mirror_set *ms, struct bio_list *reads)
 		 */
 		if (likely(region_in_sync(ms, region, 1)))
 			m = choose_mirror(ms, bio->bi_iter.bi_sector);
-		else if (m && atomic_read(&m->error_count))
+		else if (m && atomic_read_unchecked(&m->error_count))
 			m = NULL;
 
 		if (likely(m))
@@ -960,7 +960,7 @@ static int get_mirror(struct mirror_set *ms, struct dm_target *ti,
 	}
 
 	ms->mirror[mirror].ms = ms;
-	atomic_set(&(ms->mirror[mirror].error_count), 0);
+	atomic_set_unchecked(&(ms->mirror[mirror].error_count), 0);
 	ms->mirror[mirror].error_type = 0;
 	ms->mirror[mirror].offset = offset;
 
@@ -1384,7 +1384,7 @@ static void mirror_resume(struct dm_target *ti)
  */
 static char device_status_char(struct mirror *m)
 {
-	if (!atomic_read(&(m->error_count)))
+	if (!atomic_read_unchecked(&(m->error_count)))
 		return 'A';
 
 	return (test_bit(DM_RAID1_FLUSH_ERROR, &(m->error_type))) ? 'F' :
diff --git a/drivers/md/dm-stats.c b/drivers/md/dm-stats.c
index 8289804..12db118 100644
--- a/drivers/md/dm-stats.c
+++ b/drivers/md/dm-stats.c
@@ -435,7 +435,7 @@ do_sync_free:
 		synchronize_rcu_expedited();
 		dm_stat_free(&s->rcu_head);
 	} else {
-		ACCESS_ONCE(dm_stat_need_rcu_barrier) = 1;
+		ACCESS_ONCE_RW(dm_stat_need_rcu_barrier) = 1;
 		call_rcu(&s->rcu_head, dm_stat_free);
 	}
 	return 0;
@@ -648,8 +648,8 @@ void dm_stats_account_io(struct dm_stats *stats, unsigned long bi_rw,
 				       ((bi_rw & (REQ_WRITE | REQ_DISCARD)) ==
 					(ACCESS_ONCE(last->last_rw) & (REQ_WRITE | REQ_DISCARD)))
 				       ));
-		ACCESS_ONCE(last->last_sector) = end_sector;
-		ACCESS_ONCE(last->last_rw) = bi_rw;
+		ACCESS_ONCE_RW(last->last_sector) = end_sector;
+		ACCESS_ONCE_RW(last->last_rw) = bi_rw;
 	}
 
 	rcu_read_lock();
diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c
index 797ddb9..9595c24 100644
--- a/drivers/md/dm-stripe.c
+++ b/drivers/md/dm-stripe.c
@@ -21,7 +21,7 @@ struct stripe {
 	struct dm_dev *dev;
 	sector_t physical_start;
 
-	atomic_t error_count;
+	atomic_unchecked_t error_count;
 };
 
 struct stripe_c {
@@ -190,7 +190,7 @@ static int stripe_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 			kfree(sc);
 			return r;
 		}
-		atomic_set(&(sc->stripe[i].error_count), 0);
+		atomic_set_unchecked(&(sc->stripe[i].error_count), 0);
 	}
 
 	ti->private = sc;
@@ -334,7 +334,7 @@ static void stripe_status(struct dm_target *ti, status_type_t type,
 		DMEMIT("%d ", sc->stripes);
 		for (i = 0; i < sc->stripes; i++)  {
 			DMEMIT("%s ", sc->stripe[i].dev->name);
-			buffer[i] = atomic_read(&(sc->stripe[i].error_count)) ?
+			buffer[i] = atomic_read_unchecked(&(sc->stripe[i].error_count)) ?
 				'D' : 'A';
 		}
 		buffer[i] = '\0';
@@ -379,8 +379,8 @@ static int stripe_end_io(struct dm_target *ti, struct bio *bio, int error)
 	 */
 	for (i = 0; i < sc->stripes; i++)
 		if (!strcmp(sc->stripe[i].dev->name, major_minor)) {
-			atomic_inc(&(sc->stripe[i].error_count));
-			if (atomic_read(&(sc->stripe[i].error_count)) <
+			atomic_inc_unchecked(&(sc->stripe[i].error_count));
+			if (atomic_read_unchecked(&(sc->stripe[i].error_count)) <
 			    DM_IO_ERROR_THRESHOLD)
 				schedule_work(&sc->trigger_event);
 		}
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index f9e8f0b..a305122 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -305,7 +305,7 @@ static int device_area_is_invalid(struct dm_target *ti, struct dm_dev *dev,
 	if (!dev_size)
 		return 0;
 
-	if ((start >= dev_size) || (start + len > dev_size)) {
+	if ((start >= dev_size) || (len > dev_size - start)) {
 		DMWARN("%s: %s too small for target: "
 		       "start=%llu, len=%llu, dev_size=%llu",
 		       dm_device_name(ti->table->md), bdevname(bdev, b),
diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c
index 43824d7..fb6a7b0 100644
--- a/drivers/md/dm-thin-metadata.c
+++ b/drivers/md/dm-thin-metadata.c
@@ -405,7 +405,7 @@ static void __setup_btree_details(struct dm_pool_metadata *pmd)
 {
 	pmd->info.tm = pmd->tm;
 	pmd->info.levels = 2;
-	pmd->info.value_type.context = pmd->data_sm;
+	pmd->info.value_type.context = (dm_space_map_no_const *)pmd->data_sm;
 	pmd->info.value_type.size = sizeof(__le64);
 	pmd->info.value_type.inc = data_block_inc;
 	pmd->info.value_type.dec = data_block_dec;
@@ -424,7 +424,7 @@ static void __setup_btree_details(struct dm_pool_metadata *pmd)
 
 	pmd->bl_info.tm = pmd->tm;
 	pmd->bl_info.levels = 1;
-	pmd->bl_info.value_type.context = pmd->data_sm;
+	pmd->bl_info.value_type.context = (dm_space_map_no_const *)pmd->data_sm;
 	pmd->bl_info.value_type.size = sizeof(__le64);
 	pmd->bl_info.value_type.inc = data_block_inc;
 	pmd->bl_info.value_type.dec = data_block_dec;
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 3d3ac13..4a7d0f3 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -170,8 +170,8 @@ struct mapped_device {
 	 * Event handling.
 	 */
 	wait_queue_head_t eventq;
-	atomic_t event_nr;
-	atomic_t uevent_seq;
+	atomic_unchecked_t event_nr;
+	atomic_unchecked_t uevent_seq;
 	struct list_head uevent_list;
 	spinlock_t uevent_lock; /* Protect access to uevent_list */
 
@@ -772,14 +772,16 @@ static void queue_io(struct mapped_device *md, struct bio *bio)
  * function to access the md->map field, and make sure they call
  * dm_put_live_table() when finished.
  */
-struct dm_table *dm_get_live_table(struct mapped_device *md, int *srcu_idx) __acquires(md->io_barrier)
+struct dm_table *dm_get_live_table(struct mapped_device *md, int *srcu_idx) __acquires(&md->io_barrier);
+struct dm_table *dm_get_live_table(struct mapped_device *md, int *srcu_idx)
 {
 	*srcu_idx = srcu_read_lock(&md->io_barrier);
 
 	return srcu_dereference(md->map, &md->io_barrier);
 }
 
-void dm_put_live_table(struct mapped_device *md, int srcu_idx) __releases(md->io_barrier)
+void dm_put_live_table(struct mapped_device *md, int srcu_idx) __releases(&md->io_barrier);
+void dm_put_live_table(struct mapped_device *md, int srcu_idx)
 {
 	srcu_read_unlock(&md->io_barrier, srcu_idx);
 }
@@ -794,13 +796,15 @@ void dm_sync_table(struct mapped_device *md)
  * A fast alternative to dm_get_live_table/dm_put_live_table.
  * The caller must not block between these two functions.
  */
-static struct dm_table *dm_get_live_table_fast(struct mapped_device *md) __acquires(RCU)
+static struct dm_table *dm_get_live_table_fast(struct mapped_device *md) __acquires(RCU);
+static struct dm_table *dm_get_live_table_fast(struct mapped_device *md)
 {
 	rcu_read_lock();
 	return rcu_dereference(md->map);
 }
 
-static void dm_put_live_table_fast(struct mapped_device *md) __releases(RCU)
+static void dm_put_live_table_fast(struct mapped_device *md) __releases(RCU);
+static void dm_put_live_table_fast(struct mapped_device *md)
 {
 	rcu_read_unlock();
 }
@@ -2371,8 +2375,8 @@ static struct mapped_device *alloc_dev(int minor)
 	spin_lock_init(&md->deferred_lock);
 	atomic_set(&md->holders, 1);
 	atomic_set(&md->open_count, 0);
-	atomic_set(&md->event_nr, 0);
-	atomic_set(&md->uevent_seq, 0);
+	atomic_set_unchecked(&md->event_nr, 0);
+	atomic_set_unchecked(&md->uevent_seq, 0);
 	INIT_LIST_HEAD(&md->uevent_list);
 	INIT_LIST_HEAD(&md->table_devices);
 	spin_lock_init(&md->uevent_lock);
@@ -2515,7 +2519,7 @@ static void event_callback(void *context)
 
 	dm_send_uevents(&uevents, &disk_to_dev(md->disk)->kobj);
 
-	atomic_inc(&md->event_nr);
+	atomic_inc_unchecked(&md->event_nr);
 	wake_up(&md->eventq);
 }
 
@@ -3453,18 +3457,18 @@ int dm_kobject_uevent(struct mapped_device *md, enum kobject_action action,
 
 uint32_t dm_next_uevent_seq(struct mapped_device *md)
 {
-	return atomic_add_return(1, &md->uevent_seq);
+	return atomic_add_return_unchecked(1, &md->uevent_seq);
 }
 
 uint32_t dm_get_event_nr(struct mapped_device *md)
 {
-	return atomic_read(&md->event_nr);
+	return atomic_read_unchecked(&md->event_nr);
 }
 
 int dm_wait_event(struct mapped_device *md, int event_nr)
 {
 	return wait_event_interruptible(md->eventq,
-			(event_nr != atomic_read(&md->event_nr)));
+			(event_nr != atomic_read_unchecked(&md->event_nr)));
 }
 
 void dm_uevent_add(struct mapped_device *md, struct list_head *elist)
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 85b16aa..99b84b1 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -198,10 +198,10 @@ EXPORT_SYMBOL_GPL(bio_clone_mddev);
  *  start build, activate spare
  */
 static DECLARE_WAIT_QUEUE_HEAD(md_event_waiters);
-static atomic_t md_event_count;
+static atomic_unchecked_t md_event_count;
 void md_new_event(struct mddev *mddev)
 {
-	atomic_inc(&md_event_count);
+	atomic_inc_unchecked(&md_event_count);
 	wake_up(&md_event_waiters);
 }
 EXPORT_SYMBOL_GPL(md_new_event);
@@ -1430,7 +1430,7 @@ static int super_1_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor_
 	if ((le32_to_cpu(sb->feature_map) & MD_FEATURE_RESHAPE_ACTIVE) &&
 	    (le32_to_cpu(sb->feature_map) & MD_FEATURE_NEW_OFFSET))
 		rdev->new_data_offset += (s32)le32_to_cpu(sb->new_offset);
-	atomic_set(&rdev->corrected_errors, le32_to_cpu(sb->cnt_corrected_read));
+	atomic_set_unchecked(&rdev->corrected_errors, le32_to_cpu(sb->cnt_corrected_read));
 
 	rdev->sb_size = le32_to_cpu(sb->max_dev) * 2 + 256;
 	bmask = queue_logical_block_size(rdev->bdev->bd_disk->queue)-1;
@@ -1699,7 +1699,7 @@ static void super_1_sync(struct mddev *mddev, struct md_rdev *rdev)
 	else
 		sb->resync_offset = cpu_to_le64(0);
 
-	sb->cnt_corrected_read = cpu_to_le32(atomic_read(&rdev->corrected_errors));
+	sb->cnt_corrected_read = cpu_to_le32(atomic_read_unchecked(&rdev->corrected_errors));
 
 	sb->raid_disks = cpu_to_le32(mddev->raid_disks);
 	sb->size = cpu_to_le64(mddev->dev_sectors);
@@ -2714,7 +2714,7 @@ __ATTR_PREALLOC(state, S_IRUGO|S_IWUSR, state_show, state_store);
 static ssize_t
 errors_show(struct md_rdev *rdev, char *page)
 {
-	return sprintf(page, "%d\n", atomic_read(&rdev->corrected_errors));
+	return sprintf(page, "%d\n", atomic_read_unchecked(&rdev->corrected_errors));
 }
 
 static ssize_t
@@ -2726,7 +2726,7 @@ errors_store(struct md_rdev *rdev, const char *buf, size_t len)
 	rv = kstrtouint(buf, 10, &n);
 	if (rv < 0)
 		return rv;
-	atomic_set(&rdev->corrected_errors, n);
+	atomic_set_unchecked(&rdev->corrected_errors, n);
 	return len;
 }
 static struct rdev_sysfs_entry rdev_errors =
@@ -3176,8 +3176,8 @@ int md_rdev_init(struct md_rdev *rdev)
 	rdev->sb_loaded = 0;
 	rdev->bb_page = NULL;
 	atomic_set(&rdev->nr_pending, 0);
-	atomic_set(&rdev->read_errors, 0);
-	atomic_set(&rdev->corrected_errors, 0);
+	atomic_set_unchecked(&rdev->read_errors, 0);
+	atomic_set_unchecked(&rdev->corrected_errors, 0);
 
 	INIT_LIST_HEAD(&rdev->same_set);
 	init_waitqueue_head(&rdev->blocked_wait);
@@ -4394,7 +4394,7 @@ mismatch_cnt_show(struct mddev *mddev, char *page)
 {
 	return sprintf(page, "%llu\n",
 		       (unsigned long long)
-		       atomic64_read(&mddev->resync_mismatches));
+		       atomic64_read_unchecked(&mddev->resync_mismatches));
 }
 
 static struct md_sysfs_entry md_mismatches = __ATTR_RO(mismatch_cnt);
@@ -5082,7 +5082,7 @@ static struct kobject *md_probe(dev_t dev, int *part, void *data)
 	return NULL;
 }
 
-static int add_named_array(const char *val, struct kernel_param *kp)
+static int add_named_array(const char *val, const struct kernel_param *kp)
 {
 	/* val must be "md_*" where * is not all digits.
 	 * We allocate an array with a large free minor number, and
@@ -5432,7 +5432,7 @@ static void md_clean(struct mddev *mddev)
 	mddev->new_layout = 0;
 	mddev->new_chunk_sectors = 0;
 	mddev->curr_resync = 0;
-	atomic64_set(&mddev->resync_mismatches, 0);
+	atomic64_set_unchecked(&mddev->resync_mismatches, 0);
 	mddev->suspend_lo = mddev->suspend_hi = 0;
 	mddev->sync_speed_min = mddev->sync_speed_max = 0;
 	mddev->recovery = 0;
@@ -5846,9 +5846,10 @@ static int get_array_info(struct mddev *mddev, void __user *arg)
 	info.patch_version = MD_PATCHLEVEL_VERSION;
 	info.ctime         = clamp_t(time64_t, mddev->ctime, 0, U32_MAX);
 	info.level         = mddev->level;
-	info.size          = mddev->dev_sectors / 2;
-	if (info.size != mddev->dev_sectors / 2) /* overflow */
+	if (2 * (sector_t)INT_MAX < mddev->dev_sectors) /* overflow */
 		info.size = -1;
+	else
+		info.size = mddev->dev_sectors / 2;
 	info.nr_disks      = nr;
 	info.raid_disks    = mddev->raid_disks;
 	info.md_minor      = mddev->md_minor;
@@ -7411,7 +7412,7 @@ static int md_seq_show(struct seq_file *seq, void *v)
 
 		spin_unlock(&pers_lock);
 		seq_printf(seq, "\n");
-		seq->poll_event = atomic_read(&md_event_count);
+		seq->poll_event = atomic_read_unchecked(&md_event_count);
 		return 0;
 	}
 	if (v == (void*)2) {
@@ -7511,7 +7512,7 @@ static int md_seq_open(struct inode *inode, struct file *file)
 		return error;
 
 	seq = file->private_data;
-	seq->poll_event = atomic_read(&md_event_count);
+	seq->poll_event = atomic_read_unchecked(&md_event_count);
 	return error;
 }
 
@@ -7528,7 +7529,7 @@ static unsigned int mdstat_poll(struct file *filp, poll_table *wait)
 	/* always allow read */
 	mask = POLLIN | POLLRDNORM;
 
-	if (seq->poll_event != atomic_read(&md_event_count))
+	if (seq->poll_event != atomic_read_unchecked(&md_event_count))
 		mask |= POLLERR | POLLPRI;
 	return mask;
 }
@@ -7628,7 +7629,7 @@ static int is_mddev_idle(struct mddev *mddev, int init)
 		struct gendisk *disk = rdev->bdev->bd_contains->bd_disk;
 		curr_events = (int)part_stat_read(&disk->part0, sectors[0]) +
 			      (int)part_stat_read(&disk->part0, sectors[1]) -
-			      atomic_read(&disk->sync_io);
+			      atomic_read_unchecked(&disk->sync_io);
 		/* sync IO will cause sync_io to increase before the disk_stats
 		 * as sync_io is counted when a request starts, and
 		 * disk_stats is counted when it completes.
@@ -7879,7 +7880,7 @@ void md_do_sync(struct md_thread *thread)
 		 * which defaults to physical size, but can be virtual size
 		 */
 		max_sectors = mddev->resync_max_sectors;
-		atomic64_set(&mddev->resync_mismatches, 0);
+		atomic64_set_unchecked(&mddev->resync_mismatches, 0);
 		/* we don't use the checkpoint if there's a bitmap */
 		if (test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery))
 			j = mddev->resync_min;
@@ -8875,11 +8876,11 @@ static __exit void md_exit(void)
 subsys_initcall(md_init);
 module_exit(md_exit)
 
-static int get_ro(char *buffer, struct kernel_param *kp)
+static int get_ro(char *buffer, const struct kernel_param *kp)
 {
 	return sprintf(buffer, "%d", start_readonly);
 }
-static int set_ro(const char *val, struct kernel_param *kp)
+static int set_ro(const char *val, const struct kernel_param *kp)
 {
 	return kstrtouint(val, 10, (unsigned int *)&start_readonly);
 }
diff --git a/drivers/md/md.h b/drivers/md/md.h
index b5c4be7..d8da717 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -96,13 +96,13 @@ struct md_rdev {
 					 * only maintained for arrays that
 					 * support hot removal
 					 */
-	atomic_t	read_errors;	/* number of consecutive read errors that
+	atomic_unchecked_t	read_errors;	/* number of consecutive read errors that
 					 * we have tried to ignore.
 					 */
 	struct timespec last_read_error;	/* monotonic time since our
 						 * last read error
 						 */
-	atomic_t	corrected_errors; /* number of corrected read errors,
+	atomic_unchecked_t	corrected_errors; /* number of corrected read errors,
 					   * for reporting to userspace and storing
 					   * in superblock.
 					   */
@@ -282,7 +282,7 @@ struct mddev {
 
 	sector_t			resync_max_sectors; /* may be set by personality */
 
-	atomic64_t			resync_mismatches; /* count of sectors where
+	atomic64_unchecked_t		resync_mismatches; /* count of sectors where
 							    * parity/replica mismatch found
 							    */
 
@@ -461,7 +461,7 @@ extern void mddev_unlock(struct mddev *mddev);
 
 static inline void md_sync_acct(struct block_device *bdev, unsigned long nr_sectors)
 {
-	atomic_add(nr_sectors, &bdev->bd_contains->bd_disk->sync_io);
+	atomic_add_unchecked(nr_sectors, &bdev->bd_contains->bd_disk->sync_io);
 }
 
 struct md_personality
diff --git a/drivers/md/persistent-data/dm-space-map-metadata.c b/drivers/md/persistent-data/dm-space-map-metadata.c
index 7e44005..20e035a 100644
--- a/drivers/md/persistent-data/dm-space-map-metadata.c
+++ b/drivers/md/persistent-data/dm-space-map-metadata.c
@@ -700,7 +700,7 @@ static int sm_metadata_extend(struct dm_space_map *sm, dm_block_t extra_blocks)
 	 * Flick into a mode where all blocks get allocated in the new area.
 	 */
 	smm->begin = old_len;
-	memcpy(sm, &bootstrap_ops, sizeof(*sm));
+	memcpy((void *)sm, &bootstrap_ops, sizeof(*sm));
 
 	/*
 	 * Extend.
@@ -738,7 +738,7 @@ out:
 	/*
 	 * Switch back to normal behaviour.
 	 */
-	memcpy(sm, &ops, sizeof(*sm));
+	memcpy((void *)sm, &ops, sizeof(*sm));
 	return r;
 }
 
diff --git a/drivers/md/persistent-data/dm-space-map.h b/drivers/md/persistent-data/dm-space-map.h
index 3e6d115..ffecdeb 100644
--- a/drivers/md/persistent-data/dm-space-map.h
+++ b/drivers/md/persistent-data/dm-space-map.h
@@ -71,6 +71,7 @@ struct dm_space_map {
 					   dm_sm_threshold_fn fn,
 					   void *context);
 };
+typedef struct dm_space_map __no_const dm_space_map_no_const;
 
 /*----------------------------------------------------------------*/
 
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index a7f2b9c..38362f6 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1063,7 +1063,7 @@ static void raid1_make_request(struct mddev *mddev, struct bio * bio)
 	struct blk_plug_cb *cb;
 	struct raid1_plug_cb *plug = NULL;
 	int first_clone;
-	int sectors_handled;
+	sector_t sectors_handled;
 	int max_sectors;
 	sector_t start_next_window;
 
@@ -1897,7 +1897,7 @@ static int fix_sync_read_error(struct r1bio *r1_bio)
 			if (r1_sync_page_io(rdev, sect, s,
 					    bio->bi_io_vec[idx].bv_page,
 					    READ) != 0)
-				atomic_add(s, &rdev->corrected_errors);
+				atomic_add_unchecked(s, &rdev->corrected_errors);
 		}
 		sectors -= s;
 		sect += s;
@@ -1988,7 +1988,7 @@ static void process_checks(struct r1bio *r1_bio)
 		} else
 			j = 0;
 		if (j >= 0)
-			atomic64_add(r1_bio->sectors, &mddev->resync_mismatches);
+			atomic64_add_unchecked(r1_bio->sectors, &mddev->resync_mismatches);
 		if (j < 0 || (test_bit(MD_RECOVERY_CHECK, &mddev->recovery)
 			      && !error)) {
 			/* No need to write to this device. */
@@ -2129,7 +2129,7 @@ static void fix_read_error(struct r1conf *conf, int read_disk,
 			    !test_bit(Faulty, &rdev->flags)) {
 				if (r1_sync_page_io(rdev, sect, s,
 						    conf->tmppage, READ)) {
-					atomic_add(s, &rdev->corrected_errors);
+					atomic_add_unchecked(s, &rdev->corrected_errors);
 					printk(KERN_INFO
 					       "md/raid1:%s: read error corrected "
 					       "(%d sectors at %llu on %s)\n",
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index e3fd725..9e365b2 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1068,7 +1068,7 @@ static void __make_request(struct mddev *mddev, struct bio *bio)
 	struct md_rdev *blocked_rdev;
 	struct blk_plug_cb *cb;
 	struct raid10_plug_cb *plug = NULL;
-	int sectors_handled;
+	sector_t sectors_handled;
 	int max_sectors;
 	int sectors;
 
@@ -1829,7 +1829,7 @@ static void end_sync_read(struct bio *bio)
 		/* The write handler will notice the lack of
 		 * R10BIO_Uptodate and record any errors etc
 		 */
-		atomic_add(r10_bio->sectors,
+		atomic_add_unchecked(r10_bio->sectors,
 			   &conf->mirrors[d].rdev->corrected_errors);
 
 	/* for reconstruct, we always reschedule after a read.
@@ -1978,7 +1978,7 @@ static void sync_request_write(struct mddev *mddev, struct r10bio *r10_bio)
 			}
 			if (j == vcnt)
 				continue;
-			atomic64_add(r10_bio->sectors, &mddev->resync_mismatches);
+			atomic64_add_unchecked(r10_bio->sectors, &mddev->resync_mismatches);
 			if (test_bit(MD_RECOVERY_CHECK, &mddev->recovery))
 				/* Don't fix anything. */
 				continue;
@@ -2177,7 +2177,7 @@ static void check_decay_read_errors(struct mddev *mddev, struct md_rdev *rdev)
 {
 	struct timespec cur_time_mon;
 	unsigned long hours_since_last;
-	unsigned int read_errors = atomic_read(&rdev->read_errors);
+	unsigned int read_errors = atomic_read_unchecked(&rdev->read_errors);
 
 	ktime_get_ts(&cur_time_mon);
 
@@ -2199,9 +2199,9 @@ static void check_decay_read_errors(struct mddev *mddev, struct md_rdev *rdev)
 	 * overflowing the shift of read_errors by hours_since_last.
 	 */
 	if (hours_since_last >= 8 * sizeof(read_errors))
-		atomic_set(&rdev->read_errors, 0);
+		atomic_set_unchecked(&rdev->read_errors, 0);
 	else
-		atomic_set(&rdev->read_errors, read_errors >> hours_since_last);
+		atomic_set_unchecked(&rdev->read_errors, read_errors >> hours_since_last);
 }
 
 static int r10_sync_page_io(struct md_rdev *rdev, sector_t sector,
@@ -2255,8 +2255,8 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10
 		return;
 
 	check_decay_read_errors(mddev, rdev);
-	atomic_inc(&rdev->read_errors);
-	if (atomic_read(&rdev->read_errors) > max_read_errors) {
+	atomic_inc_unchecked(&rdev->read_errors);
+	if (atomic_read_unchecked(&rdev->read_errors) > max_read_errors) {
 		char b[BDEVNAME_SIZE];
 		bdevname(rdev->bdev, b);
 
@@ -2264,7 +2264,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10
 		       "md/raid10:%s: %s: Raid device exceeded "
 		       "read_error threshold [cur %d:max %d]\n",
 		       mdname(mddev), b,
-		       atomic_read(&rdev->read_errors), max_read_errors);
+		       atomic_read_unchecked(&rdev->read_errors), max_read_errors);
 		printk(KERN_NOTICE
 		       "md/raid10:%s: %s: Failing raid device\n",
 		       mdname(mddev), b);
@@ -2417,7 +2417,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10
 					       sect +
 					       choose_data_offset(r10_bio, rdev)),
 				       bdevname(rdev->bdev, b));
-				atomic_add(s, &rdev->corrected_errors);
+				atomic_add_unchecked(s, &rdev->corrected_errors);
 			}
 
 			rdev_dec_pending(rdev, mddev);
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index e48c262..e88ac00 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -1110,23 +1110,23 @@ async_copy_data(int frombio, struct bio *bio, struct page **page,
 	struct bio_vec bvl;
 	struct bvec_iter iter;
 	struct page *bio_page;
-	int page_offset;
+	s64 page_offset;
 	struct async_submit_ctl submit;
 	enum async_tx_flags flags = 0;
 
 	if (bio->bi_iter.bi_sector >= sector)
-		page_offset = (signed)(bio->bi_iter.bi_sector - sector) * 512;
+		page_offset = (s64)(bio->bi_iter.bi_sector - sector) * 512;
 	else
-		page_offset = (signed)(sector - bio->bi_iter.bi_sector) * -512;
+		page_offset = (s64)(sector - bio->bi_iter.bi_sector) * -512;
 
 	if (frombio)
 		flags |= ASYNC_TX_FENCE;
 	init_async_submit(&submit, flags, tx, NULL, NULL, NULL);
 
 	bio_for_each_segment(bvl, bio, iter) {
-		int len = bvl.bv_len;
-		int clen;
-		int b_offset = 0;
+		s64 len = bvl.bv_len;
+		s64 clen;
+		s64 b_offset = 0;
 
 		if (page_offset < 0) {
 			b_offset = -page_offset;
@@ -2017,6 +2017,10 @@ static int grow_one_stripe(struct r5conf *conf, gfp_t gfp)
 	return 1;
 }
 
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+static atomic_unchecked_t raid5_cache_id = ATOMIC_INIT(0);
+#endif
+
 static int grow_stripes(struct r5conf *conf, int num)
 {
 	struct kmem_cache *sc;
@@ -2027,7 +2031,11 @@ static int grow_stripes(struct r5conf *conf, int num)
 			"raid%d-%s", conf->level, mdname(conf->mddev));
 	else
 		sprintf(conf->cache_name[0],
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+			"raid%d-%08lx", conf->level, atomic_inc_return_unchecked(&raid5_cache_id));
+#else
 			"raid%d-%p", conf->level, conf->mddev);
+#endif
 	sprintf(conf->cache_name[1], "%s-alt", conf->cache_name[0]);
 
 	conf->active_name = 0;
@@ -2330,21 +2338,21 @@ static void raid5_end_read_request(struct bio * bi)
 				mdname(conf->mddev), STRIPE_SECTORS,
 				(unsigned long long)s,
 				bdevname(rdev->bdev, b));
-			atomic_add(STRIPE_SECTORS, &rdev->corrected_errors);
+			atomic_add_unchecked(STRIPE_SECTORS, &rdev->corrected_errors);
 			clear_bit(R5_ReadError, &sh->dev[i].flags);
 			clear_bit(R5_ReWrite, &sh->dev[i].flags);
 		} else if (test_bit(R5_ReadNoMerge, &sh->dev[i].flags))
 			clear_bit(R5_ReadNoMerge, &sh->dev[i].flags);
 
-		if (atomic_read(&rdev->read_errors))
-			atomic_set(&rdev->read_errors, 0);
+		if (atomic_read_unchecked(&rdev->read_errors))
+			atomic_set_unchecked(&rdev->read_errors, 0);
 	} else {
 		const char *bdn = bdevname(rdev->bdev, b);
 		int retry = 0;
 		int set_bad = 0;
 
 		clear_bit(R5_UPTODATE, &sh->dev[i].flags);
-		atomic_inc(&rdev->read_errors);
+		atomic_inc_unchecked(&rdev->read_errors);
 		if (test_bit(R5_ReadRepl, &sh->dev[i].flags))
 			printk_ratelimited(
 				KERN_WARNING
@@ -2372,7 +2380,7 @@ static void raid5_end_read_request(struct bio * bi)
 				mdname(conf->mddev),
 				(unsigned long long)s,
 				bdn);
-		} else if (atomic_read(&rdev->read_errors)
+		} else if (atomic_read_unchecked(&rdev->read_errors)
 			 > conf->max_nr_stripes)
 			printk(KERN_WARNING
 			       "md/raid:%s: Too many read errors, failing device %s.\n",
@@ -3742,7 +3750,7 @@ static void handle_parity_checks5(struct r5conf *conf, struct stripe_head *sh,
 			 */
 			set_bit(STRIPE_INSYNC, &sh->state);
 		else {
-			atomic64_add(STRIPE_SECTORS, &conf->mddev->resync_mismatches);
+			atomic64_add_unchecked(STRIPE_SECTORS, &conf->mddev->resync_mismatches);
 			if (test_bit(MD_RECOVERY_CHECK, &conf->mddev->recovery))
 				/* don't try to repair!! */
 				set_bit(STRIPE_INSYNC, &sh->state);
@@ -3894,7 +3902,7 @@ static void handle_parity_checks6(struct r5conf *conf, struct stripe_head *sh,
 				 */
 			}
 		} else {
-			atomic64_add(STRIPE_SECTORS, &conf->mddev->resync_mismatches);
+			atomic64_add_unchecked(STRIPE_SECTORS, &conf->mddev->resync_mismatches);
 			if (test_bit(MD_RECOVERY_CHECK, &conf->mddev->recovery))
 				/* don't try to repair!! */
 				set_bit(STRIPE_INSYNC, &sh->state);
diff --git a/drivers/media/dvb-core/dvb_net.c b/drivers/media/dvb-core/dvb_net.c
index ce6a711..f87ae51 100644
--- a/drivers/media/dvb-core/dvb_net.c
+++ b/drivers/media/dvb-core/dvb_net.c
@@ -882,7 +882,7 @@ static int dvb_net_sec_callback(const u8 *buffer1, size_t buffer1_len,
 	return 0;
 }
 
-static int dvb_net_tx(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t dvb_net_tx(struct sk_buff *skb, struct net_device *dev)
 {
 	dev_kfree_skb(skb);
 	return NETDEV_TX_OK;
diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c
index e1684c5..3fc5b59 100644
--- a/drivers/media/dvb-core/dvbdev.c
+++ b/drivers/media/dvb-core/dvbdev.c
@@ -428,7 +428,7 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
 			int demux_sink_pads)
 {
 	struct dvb_device *dvbdev;
-	struct file_operations *dvbdevfops;
+	file_operations_no_const *dvbdevfops;
 	struct device *clsdev;
 	int minor;
 	int id, ret;
diff --git a/drivers/media/dvb-frontends/af9033.h b/drivers/media/dvb-frontends/af9033.h
index 6ad22b6..6e90e2a 100644
--- a/drivers/media/dvb-frontends/af9033.h
+++ b/drivers/media/dvb-frontends/af9033.h
@@ -96,6 +96,6 @@ struct af9033_ops {
 	int (*pid_filter_ctrl)(struct dvb_frontend *fe, int onoff);
 	int (*pid_filter)(struct dvb_frontend *fe, int index, u16 pid,
 			  int onoff);
-};
+} __no_const;
 
 #endif /* AF9033_H */
diff --git a/drivers/media/dvb-frontends/cx24116.c b/drivers/media/dvb-frontends/cx24116.c
index 8814f36..2adf845 100644
--- a/drivers/media/dvb-frontends/cx24116.c
+++ b/drivers/media/dvb-frontends/cx24116.c
@@ -1462,7 +1462,7 @@ static int cx24116_tune(struct dvb_frontend *fe, bool re_tune,
 	return cx24116_read_status(fe, status);
 }
 
-static int cx24116_get_algo(struct dvb_frontend *fe)
+static enum dvbfe_algo cx24116_get_algo(struct dvb_frontend *fe)
 {
 	return DVBFE_ALGO_HW;
 }
diff --git a/drivers/media/dvb-frontends/cx24117.c b/drivers/media/dvb-frontends/cx24117.c
index a3f7eb4..6103a23 100644
--- a/drivers/media/dvb-frontends/cx24117.c
+++ b/drivers/media/dvb-frontends/cx24117.c
@@ -1555,7 +1555,7 @@ static int cx24117_tune(struct dvb_frontend *fe, bool re_tune,
 	return cx24117_read_status(fe, status);
 }
 
-static int cx24117_get_algo(struct dvb_frontend *fe)
+static enum dvbfe_algo cx24117_get_algo(struct dvb_frontend *fe)
 {
 	return DVBFE_ALGO_HW;
 }
diff --git a/drivers/media/dvb-frontends/cx24120.c b/drivers/media/dvb-frontends/cx24120.c
index 066ee38..193d707 100644
--- a/drivers/media/dvb-frontends/cx24120.c
+++ b/drivers/media/dvb-frontends/cx24120.c
@@ -1492,7 +1492,7 @@ static int cx24120_tune(struct dvb_frontend *fe, bool re_tune,
 	return cx24120_read_status(fe, status);
 }
 
-static int cx24120_get_algo(struct dvb_frontend *fe)
+static enum dvbfe_algo cx24120_get_algo(struct dvb_frontend *fe)
 {
 	return DVBFE_ALGO_HW;
 }
diff --git a/drivers/media/dvb-frontends/cx24123.c b/drivers/media/dvb-frontends/cx24123.c
index 113b094..c9424e6 100644
--- a/drivers/media/dvb-frontends/cx24123.c
+++ b/drivers/media/dvb-frontends/cx24123.c
@@ -1009,7 +1009,7 @@ static int cx24123_tune(struct dvb_frontend *fe,
 	return retval;
 }
 
-static int cx24123_get_algo(struct dvb_frontend *fe)
+static enum dvbfe_algo cx24123_get_algo(struct dvb_frontend *fe)
 {
 	return DVBFE_ALGO_HW;
 }
diff --git a/drivers/media/dvb-frontends/cxd2820r_core.c b/drivers/media/dvb-frontends/cxd2820r_core.c
index 314d3b8..e2257bd 100644
--- a/drivers/media/dvb-frontends/cxd2820r_core.c
+++ b/drivers/media/dvb-frontends/cxd2820r_core.c
@@ -572,7 +572,7 @@ error:
 	return DVBFE_ALGO_SEARCH_ERROR;
 }
 
-static int cxd2820r_get_frontend_algo(struct dvb_frontend *fe)
+static enum dvbfe_algo cxd2820r_get_frontend_algo(struct dvb_frontend *fe)
 {
 	return DVBFE_ALGO_CUSTOM;
 }
diff --git a/drivers/media/dvb-frontends/dib3000.h b/drivers/media/dvb-frontends/dib3000.h
index d5dfafb..b7ed9d9 100644
--- a/drivers/media/dvb-frontends/dib3000.h
+++ b/drivers/media/dvb-frontends/dib3000.h
@@ -39,7 +39,7 @@ struct dib_fe_xfer_ops
 	int (*fifo_ctrl)(struct dvb_frontend *fe, int onoff);
 	int (*pid_ctrl)(struct dvb_frontend *fe, int index, int pid, int onoff);
 	int (*tuner_pass_ctrl)(struct dvb_frontend *fe, int onoff, u8 pll_ctrl);
-};
+} __no_const;
 
 #if IS_REACHABLE(CONFIG_DVB_DIB3000MB)
 extern struct dvb_frontend* dib3000mb_attach(const struct dib3000_config* config,
diff --git a/drivers/media/dvb-frontends/dib7000p.h b/drivers/media/dvb-frontends/dib7000p.h
index baa2789..c8de7fe 100644
--- a/drivers/media/dvb-frontends/dib7000p.h
+++ b/drivers/media/dvb-frontends/dib7000p.h
@@ -64,7 +64,7 @@ struct dib7000p_ops {
 	int (*get_adc_power)(struct dvb_frontend *fe);
 	int (*slave_reset)(struct dvb_frontend *fe);
 	struct dvb_frontend *(*init)(struct i2c_adapter *i2c_adap, u8 i2c_addr, struct dib7000p_config *cfg);
-};
+} __no_const;
 
 #if IS_REACHABLE(CONFIG_DVB_DIB7000P)
 void *dib7000p_attach(struct dib7000p_ops *ops);
diff --git a/drivers/media/dvb-frontends/dib8000.h b/drivers/media/dvb-frontends/dib8000.h
index 2b8b4b1..8cef451 100644
--- a/drivers/media/dvb-frontends/dib8000.h
+++ b/drivers/media/dvb-frontends/dib8000.h
@@ -61,7 +61,7 @@ struct dib8000_ops {
 	int (*pid_filter_ctrl)(struct dvb_frontend *fe, u8 onoff);
 	int (*pid_filter)(struct dvb_frontend *fe, u8 id, u16 pid, u8 onoff);
 	struct dvb_frontend *(*init)(struct i2c_adapter *i2c_adap, u8 i2c_addr, struct dib8000_config *cfg);
-};
+} __no_const;
 
 #if IS_REACHABLE(CONFIG_DVB_DIB8000)
 void *dib8000_attach(struct dib8000_ops *ops);
diff --git a/drivers/media/dvb-frontends/hd29l2.c b/drivers/media/dvb-frontends/hd29l2.c
index 1c7eb47..c1cd6b8 100644
--- a/drivers/media/dvb-frontends/hd29l2.c
+++ b/drivers/media/dvb-frontends/hd29l2.c
@@ -555,7 +555,7 @@ err:
 	return DVBFE_ALGO_SEARCH_ERROR;
 }
 
-static int hd29l2_get_frontend_algo(struct dvb_frontend *fe)
+static enum dvbfe_algo hd29l2_get_frontend_algo(struct dvb_frontend *fe)
 {
 	return DVBFE_ALGO_CUSTOM;
 }
diff --git a/drivers/media/dvb-frontends/lgdt3306a.c b/drivers/media/dvb-frontends/lgdt3306a.c
index 179c26e..af482fe 100644
--- a/drivers/media/dvb-frontends/lgdt3306a.c
+++ b/drivers/media/dvb-frontends/lgdt3306a.c
@@ -1734,7 +1734,7 @@ static int lgdt3306a_get_tune_settings(struct dvb_frontend *fe,
 	return 0;
 }
 
-static int lgdt3306a_search(struct dvb_frontend *fe)
+static enum dvbfe_search lgdt3306a_search(struct dvb_frontend *fe)
 {
 	enum fe_status status = 0;
 	int i, ret;
diff --git a/drivers/media/dvb-frontends/mt312.c b/drivers/media/dvb-frontends/mt312.c
index fc08429..c816697 100644
--- a/drivers/media/dvb-frontends/mt312.c
+++ b/drivers/media/dvb-frontends/mt312.c
@@ -381,7 +381,7 @@ static int mt312_send_master_cmd(struct dvb_frontend *fe,
 }
 
 static int mt312_send_burst(struct dvb_frontend *fe,
-			    const enum fe_sec_mini_cmd c)
+			    enum fe_sec_mini_cmd c)
 {
 	struct mt312_state *state = fe->demodulator_priv;
 	const u8 mini_tab[2] = { 0x02, 0x03 };
@@ -405,7 +405,7 @@ static int mt312_send_burst(struct dvb_frontend *fe,
 }
 
 static int mt312_set_tone(struct dvb_frontend *fe,
-			  const enum fe_sec_tone_mode t)
+			  enum fe_sec_tone_mode t)
 {
 	struct mt312_state *state = fe->demodulator_priv;
 	const u8 tone_tab[2] = { 0x01, 0x00 };
@@ -429,7 +429,7 @@ static int mt312_set_tone(struct dvb_frontend *fe,
 }
 
 static int mt312_set_voltage(struct dvb_frontend *fe,
-			     const enum fe_sec_voltage v)
+			     enum fe_sec_voltage v)
 {
 	struct mt312_state *state = fe->demodulator_priv;
 	const u8 volt_tab[3] = { 0x00, 0x40, 0x00 };
diff --git a/drivers/media/dvb-frontends/s921.c b/drivers/media/dvb-frontends/s921.c
index b5e3d90..bd00dc6 100644
--- a/drivers/media/dvb-frontends/s921.c
+++ b/drivers/media/dvb-frontends/s921.c
@@ -464,7 +464,7 @@ static int s921_tune(struct dvb_frontend *fe,
 	return rc;
 }
 
-static int s921_get_algo(struct dvb_frontend *fe)
+static enum dvbfe_algo s921_get_algo(struct dvb_frontend *fe)
 {
 	return DVBFE_ALGO_HW;
 }
diff --git a/drivers/media/pci/bt8xx/dst.c b/drivers/media/pci/bt8xx/dst.c
index 35bc9b2..d5072b1 100644
--- a/drivers/media/pci/bt8xx/dst.c
+++ b/drivers/media/pci/bt8xx/dst.c
@@ -1683,7 +1683,7 @@ static int dst_tune_frontend(struct dvb_frontend* fe,
 	return 0;
 }
 
-static int dst_get_tuning_algo(struct dvb_frontend *fe)
+static enum dvbfe_algo dst_get_tuning_algo(struct dvb_frontend *fe)
 {
 	return dst_algo ? DVBFE_ALGO_HW : DVBFE_ALGO_SW;
 }
diff --git a/drivers/media/pci/cx88/cx88-video.c b/drivers/media/pci/cx88/cx88-video.c
index 5f331df..674b0e0 100644
--- a/drivers/media/pci/cx88/cx88-video.c
+++ b/drivers/media/pci/cx88/cx88-video.c
@@ -50,9 +50,9 @@ MODULE_VERSION(CX88_VERSION);
 
 /* ------------------------------------------------------------------ */
 
-static unsigned int video_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
-static unsigned int vbi_nr[]   = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
-static unsigned int radio_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
+static int video_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
+static int vbi_nr[]   = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
+static int radio_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
 
 module_param_array(video_nr, int, NULL, 0444);
 module_param_array(vbi_nr,   int, NULL, 0444);
diff --git a/drivers/media/pci/ivtv/ivtv-driver.c b/drivers/media/pci/ivtv/ivtv-driver.c
index 374033a..461c38c 100644
--- a/drivers/media/pci/ivtv/ivtv-driver.c
+++ b/drivers/media/pci/ivtv/ivtv-driver.c
@@ -83,7 +83,7 @@ static struct pci_device_id ivtv_pci_tbl[] = {
 MODULE_DEVICE_TABLE(pci,ivtv_pci_tbl);
 
 /* ivtv instance counter */
-static atomic_t ivtv_instance = ATOMIC_INIT(0);
+static atomic_unchecked_t ivtv_instance = ATOMIC_INIT(0);
 
 /* Parameter declarations */
 static int cardtype[IVTV_MAX_CARDS];
diff --git a/drivers/media/pci/pt1/va1j5jf8007s.c b/drivers/media/pci/pt1/va1j5jf8007s.c
index d0e70dc0..e4fee68 100644
--- a/drivers/media/pci/pt1/va1j5jf8007s.c
+++ b/drivers/media/pci/pt1/va1j5jf8007s.c
@@ -102,7 +102,7 @@ static int va1j5jf8007s_read_snr(struct dvb_frontend *fe, u16 *snr)
 	return 0;
 }
 
-static int va1j5jf8007s_get_frontend_algo(struct dvb_frontend *fe)
+static enum dvbfe_algo va1j5jf8007s_get_frontend_algo(struct dvb_frontend *fe)
 {
 	return DVBFE_ALGO_HW;
 }
diff --git a/drivers/media/pci/pt1/va1j5jf8007t.c b/drivers/media/pci/pt1/va1j5jf8007t.c
index 0268f20..de9dff7 100644
--- a/drivers/media/pci/pt1/va1j5jf8007t.c
+++ b/drivers/media/pci/pt1/va1j5jf8007t.c
@@ -92,7 +92,7 @@ static int va1j5jf8007t_read_snr(struct dvb_frontend *fe, u16 *snr)
 	return 0;
 }
 
-static int va1j5jf8007t_get_frontend_algo(struct dvb_frontend *fe)
+static enum dvbfe_algo va1j5jf8007t_get_frontend_algo(struct dvb_frontend *fe)
 {
 	return DVBFE_ALGO_HW;
 }
diff --git a/drivers/media/pci/solo6x10/solo6x10-core.c b/drivers/media/pci/solo6x10/solo6x10-core.c
index f50d072..0214f25 100644
--- a/drivers/media/pci/solo6x10/solo6x10-core.c
+++ b/drivers/media/pci/solo6x10/solo6x10-core.c
@@ -411,7 +411,7 @@ static void solo_device_release(struct device *dev)
 
 static int solo_sysfs_init(struct solo_dev *solo_dev)
 {
-	struct bin_attribute *sdram_attr = &solo_dev->sdram_attr;
+	bin_attribute_no_const *sdram_attr = &solo_dev->sdram_attr;
 	struct device *dev = &solo_dev->dev;
 	const char *driver;
 	int i;
diff --git a/drivers/media/pci/solo6x10/solo6x10-g723.c b/drivers/media/pci/solo6x10/solo6x10-g723.c
index 4a37a1c..7e82dfd 100644
--- a/drivers/media/pci/solo6x10/solo6x10-g723.c
+++ b/drivers/media/pci/solo6x10/solo6x10-g723.c
@@ -350,7 +350,7 @@ static int solo_snd_pcm_init(struct solo_dev *solo_dev)
 
 int solo_g723_init(struct solo_dev *solo_dev)
 {
-	static struct snd_device_ops ops = { NULL };
+	static struct snd_device_ops ops = { };
 	struct snd_card *card;
 	struct snd_kcontrol_new kctl;
 	char name[32];
diff --git a/drivers/media/pci/solo6x10/solo6x10-p2m.c b/drivers/media/pci/solo6x10/solo6x10-p2m.c
index 8c84846..27b4f83 100644
--- a/drivers/media/pci/solo6x10/solo6x10-p2m.c
+++ b/drivers/media/pci/solo6x10/solo6x10-p2m.c
@@ -73,7 +73,7 @@ int solo_p2m_dma_desc(struct solo_dev *solo_dev,
 
 	/* Get next ID. According to Softlogic, 6110 has problems on !=0 P2M */
 	if (solo_dev->type != SOLO_DEV_6110 && multi_p2m) {
-		p2m_id = atomic_inc_return(&solo_dev->p2m_count) % SOLO_NR_P2M;
+		p2m_id = atomic_inc_return_unchecked(&solo_dev->p2m_count) % SOLO_NR_P2M;
 		if (p2m_id < 0)
 			p2m_id = -p2m_id;
 	}
diff --git a/drivers/media/pci/solo6x10/solo6x10.h b/drivers/media/pci/solo6x10/solo6x10.h
index 4ab6586..e1c352e 100644
--- a/drivers/media/pci/solo6x10/solo6x10.h
+++ b/drivers/media/pci/solo6x10/solo6x10.h
@@ -217,7 +217,7 @@ struct solo_dev {
 
 	/* P2M DMA Engine */
 	struct solo_p2m_dev	p2m_dev[SOLO_NR_P2M];
-	atomic_t		p2m_count;
+	atomic_unchecked_t	p2m_count;
 	int			p2m_jiffies;
 	unsigned int		p2m_timeouts;
 
diff --git a/drivers/media/pci/sta2x11/sta2x11_vip.c b/drivers/media/pci/sta2x11/sta2x11_vip.c
index 753411c..e3498f8 100644
--- a/drivers/media/pci/sta2x11/sta2x11_vip.c
+++ b/drivers/media/pci/sta2x11/sta2x11_vip.c
@@ -786,8 +786,9 @@ static struct video_device video_dev_template = {
  *
  * IRQ_HANDLED, interrupt done.
  */
-static irqreturn_t vip_irq(int irq, struct sta2x11_vip *vip)
+static irqreturn_t vip_irq(int irq, void *_vip)
 {
+	struct sta2x11_vip *vip = _vip;
 	unsigned int status;
 
 	status = reg_read(vip, DVP_ITS);
@@ -1079,7 +1080,7 @@ static int sta2x11_vip_init_one(struct pci_dev *pdev,
 	spin_lock_init(&vip->slock);
 
 	ret = request_irq(pdev->irq,
-			  (irq_handler_t) vip_irq,
+			  vip_irq,
 			  IRQF_SHARED, KBUILD_MODNAME, vip);
 	if (ret) {
 		dev_err(&pdev->dev, "request_irq failed\n");
diff --git a/drivers/media/pci/tw68/tw68-core.c b/drivers/media/pci/tw68/tw68-core.c
index 4e77618..e6f33c8 100644
--- a/drivers/media/pci/tw68/tw68-core.c
+++ b/drivers/media/pci/tw68/tw68-core.c
@@ -61,7 +61,7 @@ static unsigned int card[] = {[0 ... (TW68_MAXBOARDS - 1)] = UNSET };
 module_param_array(card, int, NULL, 0444);
 MODULE_PARM_DESC(card, "card type");
 
-static atomic_t tw68_instance = ATOMIC_INIT(0);
+static atomic_unchecked_t tw68_instance = ATOMIC_INIT(0);
 
 /* ------------------------------------------------------------------ */
 
diff --git a/drivers/media/pci/zoran/zoran.h b/drivers/media/pci/zoran/zoran.h
index 4e7db89..bd7ef95 100644
--- a/drivers/media/pci/zoran/zoran.h
+++ b/drivers/media/pci/zoran/zoran.h
@@ -178,7 +178,6 @@ struct zoran_fh;
 
 struct zoran_mapping {
 	struct zoran_fh *fh;
-	atomic_t count;
 };
 
 struct zoran_buffer {
diff --git a/drivers/media/pci/zoran/zoran_card.c b/drivers/media/pci/zoran/zoran_card.c
index 9d2697f..65fb18f 100644
--- a/drivers/media/pci/zoran/zoran_card.c
+++ b/drivers/media/pci/zoran/zoran_card.c
@@ -1356,7 +1356,7 @@ static int zoran_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (zr->card.video_codec) {
 		codec_name = codecid_to_modulename(zr->card.video_codec);
 		if (codec_name) {
-			result = request_module(codec_name);
+			result = request_module("%s", codec_name);
 			if (result) {
 				dprintk(1,
 					KERN_ERR
@@ -1368,7 +1368,7 @@ static int zoran_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (zr->card.video_vfe) {
 		vfe_name = codecid_to_modulename(zr->card.video_vfe);
 		if (vfe_name) {
-			result = request_module(vfe_name);
+			result = request_module("%s", vfe_name);
 			if (result < 0) {
 				dprintk(1,
 					KERN_ERR
diff --git a/drivers/media/pci/zoran/zoran_driver.c b/drivers/media/pci/zoran/zoran_driver.c
index 80caa70..d076ecf 100644
--- a/drivers/media/pci/zoran/zoran_driver.c
+++ b/drivers/media/pci/zoran/zoran_driver.c
@@ -2607,8 +2607,6 @@ zoran_poll (struct file *file,
 static void
 zoran_vm_open (struct vm_area_struct *vma)
 {
-	struct zoran_mapping *map = vma->vm_private_data;
-	atomic_inc(&map->count);
 }
 
 static void
@@ -2736,7 +2734,6 @@ zoran_mmap (struct file           *file,
 		return res;
 	}
 	map->fh = fh;
-	atomic_set(&map->count, 1);
 
 	vma->vm_ops = &zoran_vm_ops;
 	vma->vm_flags |= VM_DONTEXPAND;
diff --git a/drivers/media/platform/am437x/am437x-vpfe.c b/drivers/media/platform/am437x/am437x-vpfe.c
index de32e3a..e6a7bff 100644
--- a/drivers/media/platform/am437x/am437x-vpfe.c
+++ b/drivers/media/platform/am437x/am437x-vpfe.c
@@ -1706,7 +1706,7 @@ static int vpfe_get_app_input_index(struct vpfe_device *vpfe,
 		sdinfo = &cfg->sub_devs[i];
 		client = v4l2_get_subdevdata(sdinfo->sd);
 		if (client->addr == curr_client->addr &&
-		    client->adapter->nr == client->adapter->nr) {
+		    client->adapter->nr == curr_client->adapter->nr) {
 			if (vpfe->current_input >= 1)
 				return -1;
 			*app_input_index = j + vpfe->current_input;
diff --git a/drivers/media/platform/omap/omap_vout.c b/drivers/media/platform/omap/omap_vout.c
index 70c28d1..ff21b13 100644
--- a/drivers/media/platform/omap/omap_vout.c
+++ b/drivers/media/platform/omap/omap_vout.c
@@ -63,7 +63,6 @@ enum omap_vout_channels {
 	OMAP_VIDEO2,
 };
 
-static struct videobuf_queue_ops video_vbq_ops;
 /* Variables configurable through module params*/
 static u32 video1_numbuffers = 3;
 static u32 video2_numbuffers = 3;
@@ -1001,6 +1000,12 @@ static int omap_vout_open(struct file *file)
 {
 	struct videobuf_queue *q;
 	struct omap_vout_device *vout = NULL;
+	static struct videobuf_queue_ops video_vbq_ops = {
+		.buf_setup = omap_vout_buffer_setup,
+		.buf_prepare = omap_vout_buffer_prepare,
+		.buf_release = omap_vout_buffer_release,
+		.buf_queue = omap_vout_buffer_queue,
+	};
 
 	vout = video_drvdata(file);
 	v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__);
@@ -1018,10 +1023,6 @@ static int omap_vout_open(struct file *file)
 	vout->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
 
 	q = &vout->vbq;
-	video_vbq_ops.buf_setup = omap_vout_buffer_setup;
-	video_vbq_ops.buf_prepare = omap_vout_buffer_prepare;
-	video_vbq_ops.buf_release = omap_vout_buffer_release;
-	video_vbq_ops.buf_queue = omap_vout_buffer_queue;
 	spin_lock_init(&vout->vbq_lock);
 
 	videobuf_queue_dma_contig_init(q, &video_vbq_ops, q->dev,
diff --git a/drivers/media/platform/s5p-tv/mixer.h b/drivers/media/platform/s5p-tv/mixer.h
index 42cd270..b8ebb97 100644
--- a/drivers/media/platform/s5p-tv/mixer.h
+++ b/drivers/media/platform/s5p-tv/mixer.h
@@ -156,7 +156,7 @@ struct mxr_layer {
 	/** layer index (unique identifier) */
 	int idx;
 	/** callbacks for layer methods */
-	struct mxr_layer_ops ops;
+	struct mxr_layer_ops *ops;
 	/** format array */
 	const struct mxr_format **fmt_array;
 	/** size of format array */
diff --git a/drivers/media/platform/s5p-tv/mixer_grp_layer.c b/drivers/media/platform/s5p-tv/mixer_grp_layer.c
index db3163b2..d7a6b4d 100644
--- a/drivers/media/platform/s5p-tv/mixer_grp_layer.c
+++ b/drivers/media/platform/s5p-tv/mixer_grp_layer.c
@@ -235,7 +235,7 @@ struct mxr_layer *mxr_graph_layer_create(struct mxr_device *mdev, int idx)
 {
 	struct mxr_layer *layer;
 	int ret;
-	struct mxr_layer_ops ops = {
+	static struct mxr_layer_ops ops = {
 		.release = mxr_graph_layer_release,
 		.buffer_set = mxr_graph_buffer_set,
 		.stream_set = mxr_graph_stream_set,
diff --git a/drivers/media/platform/s5p-tv/mixer_reg.c b/drivers/media/platform/s5p-tv/mixer_reg.c
index a0ec14a..225f4ac 100644
--- a/drivers/media/platform/s5p-tv/mixer_reg.c
+++ b/drivers/media/platform/s5p-tv/mixer_reg.c
@@ -276,7 +276,7 @@ static void mxr_irq_layer_handle(struct mxr_layer *layer)
 		layer->update_buf = next;
 	}
 
-	layer->ops.buffer_set(layer, layer->update_buf);
+	layer->ops->buffer_set(layer, layer->update_buf);
 
 	if (done && done != layer->shadow_buf)
 		vb2_buffer_done(&done->vb.vb2_buf, VB2_BUF_STATE_DONE);
diff --git a/drivers/media/platform/s5p-tv/mixer_video.c b/drivers/media/platform/s5p-tv/mixer_video.c
index d9e7f03..2732585 100644
--- a/drivers/media/platform/s5p-tv/mixer_video.c
+++ b/drivers/media/platform/s5p-tv/mixer_video.c
@@ -210,7 +210,7 @@ static void mxr_layer_default_geo(struct mxr_layer *layer)
 	layer->geo.src.height = layer->geo.src.full_height;
 
 	mxr_geometry_dump(mdev, &layer->geo);
-	layer->ops.fix_geometry(layer, MXR_GEOMETRY_SINK, 0);
+	layer->ops->fix_geometry(layer, MXR_GEOMETRY_SINK, 0);
 	mxr_geometry_dump(mdev, &layer->geo);
 }
 
@@ -228,7 +228,7 @@ static void mxr_layer_update_output(struct mxr_layer *layer)
 	layer->geo.dst.full_width = mbus_fmt.width;
 	layer->geo.dst.full_height = mbus_fmt.height;
 	layer->geo.dst.field = mbus_fmt.field;
-	layer->ops.fix_geometry(layer, MXR_GEOMETRY_SINK, 0);
+	layer->ops->fix_geometry(layer, MXR_GEOMETRY_SINK, 0);
 
 	mxr_geometry_dump(mdev, &layer->geo);
 }
@@ -334,7 +334,7 @@ static int mxr_s_fmt(struct file *file, void *priv,
 	/* set source size to highest accepted value */
 	geo->src.full_width = max(geo->dst.full_width, pix->width);
 	geo->src.full_height = max(geo->dst.full_height, pix->height);
-	layer->ops.fix_geometry(layer, MXR_GEOMETRY_SOURCE, 0);
+	layer->ops->fix_geometry(layer, MXR_GEOMETRY_SOURCE, 0);
 	mxr_geometry_dump(mdev, &layer->geo);
 	/* set cropping to total visible screen */
 	geo->src.width = pix->width;
@@ -342,12 +342,12 @@ static int mxr_s_fmt(struct file *file, void *priv,
 	geo->src.x_offset = 0;
 	geo->src.y_offset = 0;
 	/* assure consistency of geometry */
-	layer->ops.fix_geometry(layer, MXR_GEOMETRY_CROP, MXR_NO_OFFSET);
+	layer->ops->fix_geometry(layer, MXR_GEOMETRY_CROP, MXR_NO_OFFSET);
 	mxr_geometry_dump(mdev, &layer->geo);
 	/* set full size to lowest possible value */
 	geo->src.full_width = 0;
 	geo->src.full_height = 0;
-	layer->ops.fix_geometry(layer, MXR_GEOMETRY_SOURCE, 0);
+	layer->ops->fix_geometry(layer, MXR_GEOMETRY_SOURCE, 0);
 	mxr_geometry_dump(mdev, &layer->geo);
 
 	/* returning results */
@@ -474,7 +474,7 @@ static int mxr_s_selection(struct file *file, void *fh,
 		target->width = s->r.width;
 		target->height = s->r.height;
 
-		layer->ops.fix_geometry(layer, stage, s->flags);
+		layer->ops->fix_geometry(layer, stage, s->flags);
 
 		/* retrieve update selection rectangle */
 		res.left = target->x_offset;
@@ -939,13 +939,13 @@ static int start_streaming(struct vb2_queue *vq, unsigned int count)
 	mxr_output_get(mdev);
 
 	mxr_layer_update_output(layer);
-	layer->ops.format_set(layer);
+	layer->ops->format_set(layer);
 	/* enabling layer in hardware */
 	spin_lock_irqsave(&layer->enq_slock, flags);
 	layer->state = MXR_LAYER_STREAMING;
 	spin_unlock_irqrestore(&layer->enq_slock, flags);
 
-	layer->ops.stream_set(layer, MXR_ENABLE);
+	layer->ops->stream_set(layer, MXR_ENABLE);
 	mxr_streamer_get(mdev);
 
 	return 0;
@@ -1017,7 +1017,7 @@ static void stop_streaming(struct vb2_queue *vq)
 	spin_unlock_irqrestore(&layer->enq_slock, flags);
 
 	/* disabling layer in hardware */
-	layer->ops.stream_set(layer, MXR_DISABLE);
+	layer->ops->stream_set(layer, MXR_DISABLE);
 	/* remove one streamer */
 	mxr_streamer_put(mdev);
 	/* allow changes in output configuration */
@@ -1055,8 +1055,8 @@ void mxr_base_layer_unregister(struct mxr_layer *layer)
 
 void mxr_layer_release(struct mxr_layer *layer)
 {
-	if (layer->ops.release)
-		layer->ops.release(layer);
+	if (layer->ops->release)
+		layer->ops->release(layer);
 }
 
 void mxr_base_layer_release(struct mxr_layer *layer)
@@ -1082,7 +1082,7 @@ struct mxr_layer *mxr_base_layer_create(struct mxr_device *mdev,
 
 	layer->mdev = mdev;
 	layer->idx = idx;
-	layer->ops = *ops;
+	layer->ops = ops;
 
 	spin_lock_init(&layer->enq_slock);
 	INIT_LIST_HEAD(&layer->enq_list);
diff --git a/drivers/media/platform/s5p-tv/mixer_vp_layer.c b/drivers/media/platform/s5p-tv/mixer_vp_layer.c
index dd002a4..7fafd8a 100644
--- a/drivers/media/platform/s5p-tv/mixer_vp_layer.c
+++ b/drivers/media/platform/s5p-tv/mixer_vp_layer.c
@@ -207,7 +207,7 @@ struct mxr_layer *mxr_vp_layer_create(struct mxr_device *mdev, int idx)
 {
 	struct mxr_layer *layer;
 	int ret;
-	struct mxr_layer_ops ops = {
+	static struct mxr_layer_ops ops = {
 		.release = mxr_vp_layer_release,
 		.buffer_set = mxr_vp_buffer_set,
 		.stream_set = mxr_vp_stream_set,
diff --git a/drivers/media/platform/soc_camera/soc_camera.c b/drivers/media/platform/soc_camera/soc_camera.c
index 46c7186..47130c8 100644
--- a/drivers/media/platform/soc_camera/soc_camera.c
+++ b/drivers/media/platform/soc_camera/soc_camera.c
@@ -1791,7 +1791,7 @@ static int soc_camera_probe(struct soc_camera_host *ici,
 			goto eadd;
 
 		if (shd->module_name)
-			ret = request_module(shd->module_name);
+			ret = request_module("%s", shd->module_name);
 
 		ret = shd->add_device(icd);
 		if (ret < 0)
diff --git a/drivers/media/platform/sti/c8sectpfe/Kconfig b/drivers/media/platform/sti/c8sectpfe/Kconfig
index 7420a50..e6f31a0 100644
--- a/drivers/media/platform/sti/c8sectpfe/Kconfig
+++ b/drivers/media/platform/sti/c8sectpfe/Kconfig
@@ -4,6 +4,7 @@ config DVB_C8SECTPFE
 	depends on ARCH_STI || ARCH_MULTIPLATFORM || COMPILE_TEST
 	select FW_LOADER
 	select DEBUG_FS
+	depends on !GRKERNSEC_KMEM
 	select DVB_LNBP21 if MEDIA_SUBDRV_AUTOSELECT
 	select DVB_STV090x if MEDIA_SUBDRV_AUTOSELECT
 	select DVB_STB6100 if MEDIA_SUBDRV_AUTOSELECT
diff --git a/drivers/media/radio/radio-cadet.c b/drivers/media/radio/radio-cadet.c
index 82affae..42833ec 100644
--- a/drivers/media/radio/radio-cadet.c
+++ b/drivers/media/radio/radio-cadet.c
@@ -333,6 +333,8 @@ static ssize_t cadet_read(struct file *file, char __user *data, size_t count, lo
 	unsigned char readbuf[RDS_BUFFER];
 	int i = 0;
 
+	if (count > RDS_BUFFER)
+		return -EFAULT;
 	mutex_lock(&dev->lock);
 	if (dev->rdsstat == 0)
 		cadet_start_rds(dev);
@@ -349,8 +351,9 @@ static ssize_t cadet_read(struct file *file, char __user *data, size_t count, lo
 		readbuf[i++] = dev->rdsbuf[dev->rdsout++];
 	mutex_unlock(&dev->lock);
 
-	if (i && copy_to_user(data, readbuf, i))
-		return -EFAULT;
+	if (i > sizeof(readbuf) || (i && copy_to_user(data, readbuf, i)))
+		i = -EFAULT;
+
 	return i;
 }
 
diff --git a/drivers/media/radio/radio-maxiradio.c b/drivers/media/radio/radio-maxiradio.c
index 70fd8e8..0088740 100644
--- a/drivers/media/radio/radio-maxiradio.c
+++ b/drivers/media/radio/radio-maxiradio.c
@@ -61,7 +61,7 @@ MODULE_PARM_DESC(radio_nr, "Radio device number");
 /* TEA5757 pin mappings */
 static const int clk = 1, data = 2, wren = 4, mo_st = 8, power = 16;
 
-static atomic_t maxiradio_instance = ATOMIC_INIT(0);
+static atomic_unchecked_t maxiradio_instance = ATOMIC_INIT(0);
 
 #define PCI_VENDOR_ID_GUILLEMOT 0x5046
 #define PCI_DEVICE_ID_GUILLEMOT_MAXIRADIO 0x1001
diff --git a/drivers/media/radio/radio-shark.c b/drivers/media/radio/radio-shark.c
index 85667a9..ec4dc0a 100644
--- a/drivers/media/radio/radio-shark.c
+++ b/drivers/media/radio/radio-shark.c
@@ -79,7 +79,7 @@ struct shark_device {
 	u32 last_val;
 };
 
-static atomic_t shark_instance = ATOMIC_INIT(0);
+static atomic_unchecked_t shark_instance = ATOMIC_INIT(0);
 
 static void shark_write_val(struct snd_tea575x *tea, u32 val)
 {
diff --git a/drivers/media/radio/radio-shark2.c b/drivers/media/radio/radio-shark2.c
index 0e65a85..3fa6f5c 100644
--- a/drivers/media/radio/radio-shark2.c
+++ b/drivers/media/radio/radio-shark2.c
@@ -74,7 +74,7 @@ struct shark_device {
 	u8 *transfer_buffer;
 };
 
-static atomic_t shark_instance = ATOMIC_INIT(0);
+static atomic_unchecked_t shark_instance = ATOMIC_INIT(0);
 
 static int shark_write_reg(struct radio_tea5777 *tea, u64 reg)
 {
diff --git a/drivers/media/radio/radio-si476x.c b/drivers/media/radio/radio-si476x.c
index 271f725..35e8c8f 100644
--- a/drivers/media/radio/radio-si476x.c
+++ b/drivers/media/radio/radio-si476x.c
@@ -1445,7 +1445,7 @@ static int si476x_radio_probe(struct platform_device *pdev)
 	struct si476x_radio *radio;
 	struct v4l2_ctrl *ctrl;
 
-	static atomic_t instance = ATOMIC_INIT(0);
+	static atomic_unchecked_t instance = ATOMIC_INIT(0);
 
 	radio = devm_kzalloc(&pdev->dev, sizeof(*radio), GFP_KERNEL);
 	if (!radio)
diff --git a/drivers/media/radio/wl128x/fmdrv_common.c b/drivers/media/radio/wl128x/fmdrv_common.c
index 3f9e6df..e49ca28 100644
--- a/drivers/media/radio/wl128x/fmdrv_common.c
+++ b/drivers/media/radio/wl128x/fmdrv_common.c
@@ -71,7 +71,7 @@ module_param(default_rds_buf, uint, 0444);
 MODULE_PARM_DESC(default_rds_buf, "RDS buffer entries");
 
 /* Radio Nr */
-static u32 radio_nr = -1;
+static int radio_nr = -1;
 module_param(radio_nr, int, 0444);
 MODULE_PARM_DESC(radio_nr, "Radio Nr");
 
diff --git a/drivers/media/usb/dvb-usb/cinergyT2-core.c b/drivers/media/usb/dvb-usb/cinergyT2-core.c
index 9fd1527..8927230 100644
--- a/drivers/media/usb/dvb-usb/cinergyT2-core.c
+++ b/drivers/media/usb/dvb-usb/cinergyT2-core.c
@@ -50,29 +50,73 @@ static struct dvb_usb_device_properties cinergyt2_properties;
 
 static int cinergyt2_streaming_ctrl(struct dvb_usb_adapter *adap, int enable)
 {
-	char buf[] = { CINERGYT2_EP1_CONTROL_STREAM_TRANSFER, enable ? 1 : 0 };
-	char result[64];
-	return dvb_usb_generic_rw(adap->dev, buf, sizeof(buf), result,
-				sizeof(result), 0);
+	char *buf;
+	char *result;
+	int retval;
+
+	buf = kmalloc(2, GFP_KERNEL);
+	if (buf == NULL)
+		return -ENOMEM;
+	result = kmalloc(64, GFP_KERNEL);
+	if (result == NULL) {
+		kfree(buf);
+		return -ENOMEM;
+	}
+
+	buf[0] = CINERGYT2_EP1_CONTROL_STREAM_TRANSFER;
+	buf[1] = enable ? 1 : 0;
+
+	retval = dvb_usb_generic_rw(adap->dev, buf, 2, result, 64, 0);
+
+	kfree(buf);
+	kfree(result);
+	return retval;
 }
 
 static int cinergyt2_power_ctrl(struct dvb_usb_device *d, int enable)
 {
-	char buf[] = { CINERGYT2_EP1_SLEEP_MODE, enable ? 0 : 1 };
-	char state[3];
-	return dvb_usb_generic_rw(d, buf, sizeof(buf), state, sizeof(state), 0);
+	char *buf;
+	char *state;
+	int retval;
+
+	buf = kmalloc(2, GFP_KERNEL);
+	if (buf == NULL)
+		return -ENOMEM;
+	state = kmalloc(3, GFP_KERNEL);
+	if (state == NULL) {
+		kfree(buf);
+		return -ENOMEM;
+	}
+
+	buf[0] = CINERGYT2_EP1_SLEEP_MODE;
+	buf[1] = enable ? 1 : 0;
+
+	retval = dvb_usb_generic_rw(d, buf, 2, state, 3, 0);
+
+	kfree(buf);
+	kfree(state);
+	return retval;
 }
 
 static int cinergyt2_frontend_attach(struct dvb_usb_adapter *adap)
 {
-	char query[] = { CINERGYT2_EP1_GET_FIRMWARE_VERSION };
-	char state[3];
+	char *query;
+	char *state;
 	int ret;
+	query = kmalloc(1, GFP_KERNEL);
+	if (query == NULL)
+		return -ENOMEM;
+	state = kmalloc(3, GFP_KERNEL);
+	if (state == NULL) {
+		kfree(query);
+		return -ENOMEM;
+	}
+
+	query[0] = CINERGYT2_EP1_GET_FIRMWARE_VERSION;
 
 	adap->fe_adap[0].fe = cinergyt2_fe_attach(adap->dev);
 
-	ret = dvb_usb_generic_rw(adap->dev, query, sizeof(query), state,
-				sizeof(state), 0);
+	ret = dvb_usb_generic_rw(adap->dev, query, 1, state, 3, 0);
 	if (ret < 0) {
 		deb_rc("cinergyt2_power_ctrl() Failed to retrieve sleep "
 			"state info\n");
@@ -80,7 +124,8 @@ static int cinergyt2_frontend_attach(struct dvb_usb_adapter *adap)
 
 	/* Copy this pointer as we are gonna need it in the release phase */
 	cinergyt2_usb_device = adap->dev;
-
+	kfree(query);
+	kfree(state);
 	return 0;
 }
 
@@ -141,12 +186,23 @@ static int repeatable_keys[] = {
 static int cinergyt2_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
 {
 	struct cinergyt2_state *st = d->priv;
-	u8 key[5] = {0, 0, 0, 0, 0}, cmd = CINERGYT2_EP1_GET_RC_EVENTS;
+	u8 *key, *cmd;
 	int i;
 
+	cmd = kmalloc(1, GFP_KERNEL);
+	if (cmd == NULL)
+		return -EINVAL;
+	key = kzalloc(5, GFP_KERNEL);
+	if (key == NULL) {
+		kfree(cmd);
+		return -EINVAL;
+	}
+
+	cmd[0] = CINERGYT2_EP1_GET_RC_EVENTS;
+
 	*state = REMOTE_NO_KEY_PRESSED;
 
-	dvb_usb_generic_rw(d, &cmd, 1, key, sizeof(key), 0);
+	dvb_usb_generic_rw(d, cmd, 1, key, 5, 0);
 	if (key[4] == 0xff) {
 		/* key repeat */
 		st->rc_counter++;
@@ -157,12 +213,12 @@ static int cinergyt2_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
 					*event = d->last_event;
 					deb_rc("repeat key, event %x\n",
 						   *event);
-					return 0;
+					goto out;
 				}
 			}
 			deb_rc("repeated key (non repeatable)\n");
 		}
-		return 0;
+		goto out;
 	}
 
 	/* hack to pass checksum on the custom field */
@@ -174,6 +230,9 @@ static int cinergyt2_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
 
 		deb_rc("key: %*ph\n", 5, key);
 	}
+out:
+	kfree(cmd);
+	kfree(key);
 	return 0;
 }
 
diff --git a/drivers/media/usb/dvb-usb/cinergyT2-fe.c b/drivers/media/usb/dvb-usb/cinergyT2-fe.c
index b3ec743..9c0e418 100644
--- a/drivers/media/usb/dvb-usb/cinergyT2-fe.c
+++ b/drivers/media/usb/dvb-usb/cinergyT2-fe.c
@@ -145,103 +145,176 @@ static int cinergyt2_fe_read_status(struct dvb_frontend *fe,
 				    enum fe_status *status)
 {
 	struct cinergyt2_fe_state *state = fe->demodulator_priv;
-	struct dvbt_get_status_msg result;
-	u8 cmd[] = { CINERGYT2_EP1_GET_TUNER_STATUS };
+	struct dvbt_get_status_msg *result;
+	u8 *cmd;
 	int ret;
 
-	ret = dvb_usb_generic_rw(state->d, cmd, sizeof(cmd), (u8 *)&result,
-			sizeof(result), 0);
+	cmd = kmalloc(1, GFP_KERNEL);
+	if (cmd == NULL)
+		return -ENOMEM;
+	result = kmalloc(sizeof(*result), GFP_KERNEL);
+	if (result == NULL) {
+		kfree(cmd);
+		return -ENOMEM;
+	}
+
+	cmd[0] = CINERGYT2_EP1_GET_TUNER_STATUS;
+
+	ret = dvb_usb_generic_rw(state->d, cmd, 1, (u8 *)result,
+			sizeof(*result), 0);
 	if (ret < 0)
-		return ret;
+		goto out;
 
 	*status = 0;
 
-	if (0xffff - le16_to_cpu(result.gain) > 30)
+	if (0xffff - le16_to_cpu(result->gain) > 30)
 		*status |= FE_HAS_SIGNAL;
-	if (result.lock_bits & (1 << 6))
+	if (result->lock_bits & (1 << 6))
 		*status |= FE_HAS_LOCK;
-	if (result.lock_bits & (1 << 5))
+	if (result->lock_bits & (1 << 5))
 		*status |= FE_HAS_SYNC;
-	if (result.lock_bits & (1 << 4))
+	if (result->lock_bits & (1 << 4))
 		*status |= FE_HAS_CARRIER;
-	if (result.lock_bits & (1 << 1))
+	if (result->lock_bits & (1 << 1))
 		*status |= FE_HAS_VITERBI;
 
 	if ((*status & (FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC)) !=
 			(FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC))
 		*status &= ~FE_HAS_LOCK;
 
-	return 0;
+out:
+	kfree(cmd);
+	kfree(result);
+	return ret;
 }
 
 static int cinergyt2_fe_read_ber(struct dvb_frontend *fe, u32 *ber)
 {
 	struct cinergyt2_fe_state *state = fe->demodulator_priv;
-	struct dvbt_get_status_msg status;
-	char cmd[] = { CINERGYT2_EP1_GET_TUNER_STATUS };
+	struct dvbt_get_status_msg *status;
+	char *cmd;
 	int ret;
 
-	ret = dvb_usb_generic_rw(state->d, cmd, sizeof(cmd), (char *)&status,
-				sizeof(status), 0);
+	cmd = kmalloc(1, GFP_KERNEL);
+	if (cmd == NULL)
+		return -ENOMEM;
+	status = kmalloc(sizeof(*status), GFP_KERNEL);
+	if (status == NULL) {
+		kfree(cmd);
+		return -ENOMEM;
+	}
+
+	cmd[0] = CINERGYT2_EP1_GET_TUNER_STATUS;
+
+	ret = dvb_usb_generic_rw(state->d, cmd, 1, (char *)status,
+				sizeof(*status), 0);
 	if (ret < 0)
-		return ret;
+		goto out;
 
-	*ber = le32_to_cpu(status.viterbi_error_rate);
+	*ber = le32_to_cpu(status->viterbi_error_rate);
+out:
+	kfree(cmd);
+	kfree(status);
 	return 0;
 }
 
 static int cinergyt2_fe_read_unc_blocks(struct dvb_frontend *fe, u32 *unc)
 {
 	struct cinergyt2_fe_state *state = fe->demodulator_priv;
-	struct dvbt_get_status_msg status;
-	u8 cmd[] = { CINERGYT2_EP1_GET_TUNER_STATUS };
+	struct dvbt_get_status_msg *status;
+	u8 *cmd;
 	int ret;
 
-	ret = dvb_usb_generic_rw(state->d, cmd, sizeof(cmd), (u8 *)&status,
-				sizeof(status), 0);
+	cmd = kmalloc(1, GFP_KERNEL);
+	if (cmd == NULL)
+		return -ENOMEM;
+	status = kmalloc(sizeof(*status), GFP_KERNEL);
+	if (status == NULL) {
+		kfree(cmd);
+		return -ENOMEM;
+	}
+
+	cmd[0] = CINERGYT2_EP1_GET_TUNER_STATUS;
+
+	ret = dvb_usb_generic_rw(state->d, cmd, 1, (u8 *)status,
+				sizeof(*status), 0);
 	if (ret < 0) {
 		err("cinergyt2_fe_read_unc_blocks() Failed! (Error=%d)\n",
 			ret);
-		return ret;
+		goto out;
 	}
-	*unc = le32_to_cpu(status.uncorrected_block_count);
-	return 0;
+	*unc = le32_to_cpu(status->uncorrected_block_count);
+
+out:
+	kfree(cmd);
+	kfree(status);
+	return ret;
 }
 
 static int cinergyt2_fe_read_signal_strength(struct dvb_frontend *fe,
 						u16 *strength)
 {
 	struct cinergyt2_fe_state *state = fe->demodulator_priv;
-	struct dvbt_get_status_msg status;
-	char cmd[] = { CINERGYT2_EP1_GET_TUNER_STATUS };
+	struct dvbt_get_status_msg *status;
+	char *cmd;
 	int ret;
 
-	ret = dvb_usb_generic_rw(state->d, cmd, sizeof(cmd), (char *)&status,
-				sizeof(status), 0);
+	cmd = kmalloc(1, GFP_KERNEL);
+	if (cmd == NULL)
+		return -ENOMEM;
+	status = kmalloc(sizeof(*status), GFP_KERNEL);
+	if (status == NULL) {
+		kfree(cmd);
+		return -ENOMEM;
+	}
+
+	cmd[0] = CINERGYT2_EP1_GET_TUNER_STATUS;
+
+	ret = dvb_usb_generic_rw(state->d, cmd, 1, (char *)status,
+				sizeof(*status), 0);
 	if (ret < 0) {
 		err("cinergyt2_fe_read_signal_strength() Failed!"
 			" (Error=%d)\n", ret);
-		return ret;
+		goto out;
 	}
-	*strength = (0xffff - le16_to_cpu(status.gain));
+	*strength = (0xffff - le16_to_cpu(status->gain));
+
+out:
+	kfree(cmd);
+	kfree(status);
 	return 0;
 }
 
 static int cinergyt2_fe_read_snr(struct dvb_frontend *fe, u16 *snr)
 {
 	struct cinergyt2_fe_state *state = fe->demodulator_priv;
-	struct dvbt_get_status_msg status;
-	char cmd[] = { CINERGYT2_EP1_GET_TUNER_STATUS };
+	struct dvbt_get_status_msg *status;
+	char *cmd;
 	int ret;
 
-	ret = dvb_usb_generic_rw(state->d, cmd, sizeof(cmd), (char *)&status,
-				sizeof(status), 0);
+	cmd = kmalloc(1, GFP_KERNEL);
+	if (cmd == NULL)
+		return -ENOMEM;
+	status = kmalloc(sizeof(*status), GFP_KERNEL);
+	if (status == NULL) {
+		kfree(cmd);
+		return -ENOMEM;
+	}
+
+	cmd[0] = CINERGYT2_EP1_GET_TUNER_STATUS;
+
+	ret = dvb_usb_generic_rw(state->d, cmd, 1, (char *)status,
+				sizeof(*status), 0);
 	if (ret < 0) {
 		err("cinergyt2_fe_read_snr() Failed! (Error=%d)\n", ret);
-		return ret;
+		goto out;
 	}
-	*snr = (status.snr << 8) | status.snr;
-	return 0;
+	*snr = (status->snr << 8) | status->snr;
+
+out:
+	kfree(cmd);
+	kfree(status);
+	return ret;
 }
 
 static int cinergyt2_fe_init(struct dvb_frontend *fe)
@@ -266,35 +339,46 @@ static int cinergyt2_fe_set_frontend(struct dvb_frontend *fe)
 {
 	struct dtv_frontend_properties *fep = &fe->dtv_property_cache;
 	struct cinergyt2_fe_state *state = fe->demodulator_priv;
-	struct dvbt_set_parameters_msg param;
-	char result[2];
+	struct dvbt_set_parameters_msg *param;
+	char *result;
 	int err;
 
-	param.cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
-	param.tps = cpu_to_le16(compute_tps(fep));
-	param.freq = cpu_to_le32(fep->frequency / 1000);
-	param.flags = 0;
+	result = kmalloc(2, GFP_KERNEL);
+	if (result == NULL)
+		return -ENOMEM;
+	param = kmalloc(sizeof(*param), GFP_KERNEL);
+	if (param == NULL) {
+		kfree(result);
+		return -ENOMEM;
+	}
+
+	param->cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
+	param->tps = cpu_to_le16(compute_tps(fep));
+	param->freq = cpu_to_le32(fep->frequency / 1000);
+	param->flags = 0;
 
 	switch (fep->bandwidth_hz) {
 	default:
 	case 8000000:
-		param.bandwidth = 8;
+		param->bandwidth = 8;
 		break;
 	case 7000000:
-		param.bandwidth = 7;
+		param->bandwidth = 7;
 		break;
 	case 6000000:
-		param.bandwidth = 6;
+		param->bandwidth = 6;
 		break;
 	}
 
 	err = dvb_usb_generic_rw(state->d,
-			(char *)&param, sizeof(param),
-			result, sizeof(result), 0);
+			(char *)param, sizeof(*param),
+			result, 2, 0);
 	if (err < 0)
 		err("cinergyt2_fe_set_frontend() Failed! err=%d\n", err);
 
-	return (err < 0) ? err : 0;
+	kfree(result);
+	kfree(param);
+	return err;
 }
 
 static void cinergyt2_fe_release(struct dvb_frontend *fe)
diff --git a/drivers/media/usb/dvb-usb/dvb-usb-firmware.c b/drivers/media/usb/dvb-usb/dvb-usb-firmware.c
index dd048a7..717a7b2 100644
--- a/drivers/media/usb/dvb-usb/dvb-usb-firmware.c
+++ b/drivers/media/usb/dvb-usb/dvb-usb-firmware.c
@@ -35,42 +35,57 @@ static int usb_cypress_writemem(struct usb_device *udev,u16 addr,u8 *data, u8 le
 
 int usb_cypress_load_firmware(struct usb_device *udev, const struct firmware *fw, int type)
 {
-	struct hexline hx;
-	u8 reset;
+	struct hexline *hx;
+	u8 *reset;
 	int ret,pos=0;
 
+	reset = kmalloc(1, GFP_KERNEL);
+	if (reset == NULL)
+		return -ENOMEM;
+
+	hx = kmalloc(sizeof(struct hexline), GFP_KERNEL);
+	if (hx == NULL) {
+		kfree(reset);
+		return -ENOMEM;
+	}
+
 	/* stop the CPU */
-	reset = 1;
-	if ((ret = usb_cypress_writemem(udev,cypress[type].cpu_cs_register,&reset,1)) != 1)
+	reset[0] = 1;
+	if ((ret = usb_cypress_writemem(udev,cypress[type].cpu_cs_register,reset,1)) != 1)
 		err("could not stop the USB controller CPU.");
 
-	while ((ret = dvb_usb_get_hexline(fw,&hx,&pos)) > 0) {
-		deb_fw("writing to address 0x%04x (buffer: 0x%02x %02x)\n",hx.addr,hx.len,hx.chk);
-		ret = usb_cypress_writemem(udev,hx.addr,hx.data,hx.len);
+	while ((ret = dvb_usb_get_hexline(fw,hx,&pos)) > 0) {
+		deb_fw("writing to address 0x%04x (buffer: 0x%02x %02x)\n",hx->addr,hx->len,hx->chk);
+		ret = usb_cypress_writemem(udev,hx->addr,hx->data,hx->len);
 
-		if (ret != hx.len) {
+		if (ret != hx->len) {
 			err("error while transferring firmware "
 				"(transferred size: %d, block size: %d)",
-				ret,hx.len);
+				ret,hx->len);
 			ret = -EINVAL;
 			break;
 		}
 	}
 	if (ret < 0) {
 		err("firmware download failed at %d with %d",pos,ret);
+		kfree(reset);
+		kfree(hx);
 		return ret;
 	}
 
 	if (ret == 0) {
 		/* restart the CPU */
-		reset = 0;
-		if (ret || usb_cypress_writemem(udev,cypress[type].cpu_cs_register,&reset,1) != 1) {
+		reset[0] = 0;
+		if (ret || usb_cypress_writemem(udev,cypress[type].cpu_cs_register,reset,1) != 1) {
 			err("could not restart the USB controller CPU.");
 			ret = -EINVAL;
 		}
 	} else
 		ret = -EIO;
 
+	kfree(reset);
+	kfree(hx);
+
 	return ret;
 }
 EXPORT_SYMBOL(usb_cypress_load_firmware);
diff --git a/drivers/media/usb/dvb-usb/technisat-usb2.c b/drivers/media/usb/dvb-usb/technisat-usb2.c
index d9f3262..4370dbd 100644
--- a/drivers/media/usb/dvb-usb/technisat-usb2.c
+++ b/drivers/media/usb/dvb-usb/technisat-usb2.c
@@ -89,8 +89,11 @@ struct technisat_usb2_state {
 static int technisat_usb2_i2c_access(struct usb_device *udev,
 		u8 device_addr, u8 *tx, u8 txlen, u8 *rx, u8 rxlen)
 {
-	u8 b[64];
-	int ret, actual_length;
+	u8 *b = kmalloc(64, GFP_KERNEL);
+	int ret, actual_length, error = 0;
+
+	if (b == NULL)
+		return -ENOMEM;
 
 	deb_i2c("i2c-access: %02x, tx: ", device_addr);
 	debug_dump(tx, txlen, deb_i2c);
@@ -123,7 +126,8 @@ static int technisat_usb2_i2c_access(struct usb_device *udev,
 
 	if (ret < 0) {
 		err("i2c-error: out failed %02x = %d", device_addr, ret);
-		return -ENODEV;
+		error = -ENODEV;
+		goto out;
 	}
 
 	ret = usb_bulk_msg(udev,
@@ -131,7 +135,8 @@ static int technisat_usb2_i2c_access(struct usb_device *udev,
 			b, 64, &actual_length, 1000);
 	if (ret < 0) {
 		err("i2c-error: in failed %02x = %d", device_addr, ret);
-		return -ENODEV;
+		error = -ENODEV;
+		goto out;
 	}
 
 	if (b[0] != I2C_STATUS_OK) {
@@ -139,8 +144,10 @@ static int technisat_usb2_i2c_access(struct usb_device *udev,
 		/* handle tuner-i2c-nak */
 		if (!(b[0] == I2C_STATUS_NAK &&
 				device_addr == 0x60
-				/* && device_is_technisat_usb2 */))
-			return -ENODEV;
+				/* && device_is_technisat_usb2 */)) {
+			error = -ENODEV;
+			goto out;
+		}
 	}
 
 	deb_i2c("status: %d, ", b[0]);
@@ -154,7 +161,9 @@ static int technisat_usb2_i2c_access(struct usb_device *udev,
 
 	deb_i2c("\n");
 
-	return 0;
+out:
+	kfree(b);
+	return error;
 }
 
 static int technisat_usb2_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msg,
diff --git a/drivers/media/usb/pvrusb2/pvrusb2-context.c b/drivers/media/usb/pvrusb2/pvrusb2-context.c
index c45f307..7d79261 100644
--- a/drivers/media/usb/pvrusb2/pvrusb2-context.c
+++ b/drivers/media/usb/pvrusb2/pvrusb2-context.c
@@ -103,8 +103,10 @@ static void pvr2_context_destroy(struct pvr2_context *mp)
 }
 
 
-static void pvr2_context_notify(struct pvr2_context *mp)
+static void pvr2_context_notify(void *_mp)
 {
+	struct pvr2_context *mp = _mp;
+
 	pvr2_context_set_notify(mp,!0);
 }
 
@@ -119,9 +121,7 @@ static void pvr2_context_check(struct pvr2_context *mp)
 		pvr2_trace(PVR2_TRACE_CTXT,
 			   "pvr2_context %p (initialize)", mp);
 		/* Finish hardware initialization */
-		if (pvr2_hdw_initialize(mp->hdw,
-					(void (*)(void *))pvr2_context_notify,
-					mp)) {
+		if (pvr2_hdw_initialize(mp->hdw, pvr2_context_notify, mp)) {
 			mp->video_stream.stream =
 				pvr2_hdw_get_video_stream(mp->hdw);
 			/* Trigger interface initialization.  By doing this
diff --git a/drivers/media/usb/pvrusb2/pvrusb2-dvb.c b/drivers/media/usb/pvrusb2/pvrusb2-dvb.c
index 8c95793..2309b9e 100644
--- a/drivers/media/usb/pvrusb2/pvrusb2-dvb.c
+++ b/drivers/media/usb/pvrusb2/pvrusb2-dvb.c
@@ -101,8 +101,10 @@ static int pvr2_dvb_feed_thread(void *data)
 	return stat;
 }
 
-static void pvr2_dvb_notify(struct pvr2_dvb_adapter *adap)
+static void pvr2_dvb_notify(void *_adap)
 {
+	struct pvr2_dvb_adapter *adap = _adap;
+
 	wake_up(&adap->buffer_wait_data);
 }
 
@@ -161,8 +163,7 @@ static int pvr2_dvb_stream_do_start(struct pvr2_dvb_adapter *adap)
 		if (!(adap->buffer_storage[idx])) return -ENOMEM;
 	}
 
-	pvr2_stream_set_callback(pvr->video_stream.stream,
-				 (pvr2_stream_callback) pvr2_dvb_notify, adap);
+	pvr2_stream_set_callback(pvr->video_stream.stream, pvr2_dvb_notify, adap);
 
 	ret = pvr2_stream_set_buffer_count(stream, PVR2_DVB_BUFFER_COUNT);
 	if (ret < 0) return ret;
diff --git a/drivers/media/usb/pvrusb2/pvrusb2-hdw.c b/drivers/media/usb/pvrusb2/pvrusb2-hdw.c
index 1a093e5..f865fff 100644
--- a/drivers/media/usb/pvrusb2/pvrusb2-hdw.c
+++ b/drivers/media/usb/pvrusb2/pvrusb2-hdw.c
@@ -2097,7 +2097,7 @@ static void pvr2_hdw_load_modules(struct pvr2_hdw *hdw)
 
 	cm = &hdw->hdw_desc->client_modules;
 	for (idx = 0; idx < cm->cnt; idx++) {
-		request_module(cm->lst[idx]);
+		request_module("%s", cm->lst[idx]);
 	}
 
 	ct = &hdw->hdw_desc->client_table;
diff --git a/drivers/media/usb/pvrusb2/pvrusb2-std.c b/drivers/media/usb/pvrusb2/pvrusb2-std.c
index 9a596a3..38de071 100644
--- a/drivers/media/usb/pvrusb2/pvrusb2-std.c
+++ b/drivers/media/usb/pvrusb2/pvrusb2-std.c
@@ -216,7 +216,7 @@ unsigned int pvr2_std_id_to_str(char *bufPtr, unsigned int bufSize,
 			bufSize -= c2;
 			bufPtr += c2;
 			c2 = scnprintf(bufPtr,bufSize,
-				       ip->name);
+				       "%s", ip->name);
 			c1 += c2;
 			bufSize -= c2;
 			bufPtr += c2;
diff --git a/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c b/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c
index 81f788b..9619f47 100644
--- a/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c
+++ b/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c
@@ -1069,8 +1069,10 @@ static int pvr2_v4l2_open(struct file *file)
 }
 
 
-static void pvr2_v4l2_notify(struct pvr2_v4l2_fh *fhp)
+static void pvr2_v4l2_notify(void *_fhp)
 {
+	struct pvr2_v4l2_fh *fhp = _fhp;
+
 	wake_up(&fhp->wait_data);
 }
 
@@ -1103,7 +1105,7 @@ static int pvr2_v4l2_iosetup(struct pvr2_v4l2_fh *fh)
 
 	hdw = fh->channel.mc_head->hdw;
 	sp = fh->pdi->stream->stream;
-	pvr2_stream_set_callback(sp,(pvr2_stream_callback)pvr2_v4l2_notify,fh);
+	pvr2_stream_set_callback(sp,pvr2_v4l2_notify,fh);
 	pvr2_hdw_set_stream_type(hdw,fh->pdi->config);
 	if ((ret = pvr2_hdw_set_streaming(hdw,!0)) < 0) return ret;
 	return pvr2_ioread_set_enabled(fh->rhp,!0);
diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
index 451e84e9..0f7ff4f 100644
--- a/drivers/media/usb/uvc/uvc_driver.c
+++ b/drivers/media/usb/uvc/uvc_driver.c
@@ -2078,7 +2078,7 @@ static int uvc_reset_resume(struct usb_interface *intf)
  * Module parameters
  */
 
-static int uvc_clock_param_get(char *buffer, struct kernel_param *kp)
+static int uvc_clock_param_get(char *buffer, const struct kernel_param *kp)
 {
 	if (uvc_clock_param == CLOCK_MONOTONIC)
 		return sprintf(buffer, "CLOCK_MONOTONIC");
@@ -2086,7 +2086,7 @@ static int uvc_clock_param_get(char *buffer, struct kernel_param *kp)
 		return sprintf(buffer, "CLOCK_REALTIME");
 }
 
-static int uvc_clock_param_set(const char *val, struct kernel_param *kp)
+static int uvc_clock_param_set(const char *val, const struct kernel_param *kp)
 {
 	if (strncasecmp(val, "clock_", strlen("clock_")) == 0)
 		val += strlen("clock_");
diff --git a/drivers/media/v4l2-core/v4l2-common.c b/drivers/media/v4l2-core/v4l2-common.c
index 5b80850..97b8443 100644
--- a/drivers/media/v4l2-core/v4l2-common.c
+++ b/drivers/media/v4l2-core/v4l2-common.c
@@ -268,7 +268,7 @@ struct v4l2_subdev *v4l2_spi_new_subdev(struct v4l2_device *v4l2_dev,
 	BUG_ON(!v4l2_dev);
 
 	if (info->modalias[0])
-		request_module(info->modalias);
+		request_module("%s", info->modalias);
 
 	spi = spi_new_device(master, info);
 
diff --git a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
index bacecbd..277d1f8 100644
--- a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
+++ b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
@@ -449,7 +449,7 @@ static int get_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user
 		 * by passing a very big num_planes value */
 		uplane = compat_alloc_user_space(num_planes *
 						sizeof(struct v4l2_plane));
-		kp->m.planes = (__force struct v4l2_plane *)uplane;
+		kp->m.planes = (__force_kernel struct v4l2_plane *)uplane;
 
 		while (--num_planes >= 0) {
 			ret = get_v4l2_plane32(uplane, uplane32, kp->memory);
@@ -519,7 +519,7 @@ static int put_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user
 		if (num_planes == 0)
 			return 0;
 
-		uplane = (__force struct v4l2_plane __user *)kp->m.planes;
+		uplane = (struct v4l2_plane __force_user *)kp->m.planes;
 		if (get_user(p, &up->m.planes))
 			return -EFAULT;
 		uplane32 = compat_ptr(p);
@@ -581,7 +581,7 @@ static int get_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_frame
 		get_user(kp->flags, &up->flags) ||
 		copy_from_user(&kp->fmt, &up->fmt, sizeof(up->fmt)))
 			return -EFAULT;
-	kp->base = (__force void *)compat_ptr(tmp);
+	kp->base = (__force_kernel void *)compat_ptr(tmp);
 	return 0;
 }
 
@@ -687,7 +687,7 @@ static int get_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext
 			n * sizeof(struct v4l2_ext_control32)))
 		return -EFAULT;
 	kcontrols = compat_alloc_user_space(n * sizeof(struct v4l2_ext_control));
-	kp->controls = (__force struct v4l2_ext_control *)kcontrols;
+	kp->controls = (__force_kernel struct v4l2_ext_control *)kcontrols;
 	while (--n >= 0) {
 		u32 id;
 
@@ -714,7 +714,7 @@ static int put_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext
 {
 	struct v4l2_ext_control32 __user *ucontrols;
 	struct v4l2_ext_control __user *kcontrols =
-		(__force struct v4l2_ext_control __user *)kp->controls;
+		(struct v4l2_ext_control __force_user *)kp->controls;
 	int n = kp->count;
 	compat_caddr_t p;
 
@@ -799,7 +799,7 @@ static int get_v4l2_edid32(struct v4l2_edid *kp, struct v4l2_edid32 __user *up)
 		get_user(tmp, &up->edid) ||
 		copy_from_user(kp->reserved, up->reserved, sizeof(kp->reserved)))
 			return -EFAULT;
-	kp->edid = (__force u8 *)compat_ptr(tmp);
+	kp->edid = (__force_kernel u8 *)compat_ptr(tmp);
 	return 0;
 }
 
diff --git a/drivers/media/v4l2-core/v4l2-device.c b/drivers/media/v4l2-core/v4l2-device.c
index 06fa5f1..2231dda 100644
--- a/drivers/media/v4l2-core/v4l2-device.c
+++ b/drivers/media/v4l2-core/v4l2-device.c
@@ -74,9 +74,9 @@ int v4l2_device_put(struct v4l2_device *v4l2_dev)
 EXPORT_SYMBOL_GPL(v4l2_device_put);
 
 int v4l2_device_set_name(struct v4l2_device *v4l2_dev, const char *basename,
-						atomic_t *instance)
+						atomic_unchecked_t *instance)
 {
-	int num = atomic_inc_return(instance) - 1;
+	int num = atomic_inc_return_unchecked(instance) - 1;
 	int len = strlen(basename);
 
 	if (basename[len - 1] >= '0' && basename[len - 1] <= '9')
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index 170dd68..19b339d 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -2406,49 +2406,216 @@ static int v4l_enum_freq_bands(const struct v4l2_ioctl_ops *ops,
 	return -ENOTTY;
 }
 
+static int v4l_vidioc_g_fbuf(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_g_fbuf(file, fh, arg);
+}
+
+static int v4l_vidioc_s_fbuf(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_s_fbuf(file, fh, arg);
+}
+
+static int v4l_vidioc_expbuf(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_expbuf(file, fh, arg);
+}
+
+static int v4l_vidioc_g_std(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_g_std(file, fh, arg);
+}
+
+static int v4l_vidioc_g_audio(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_g_audio(file, fh, arg);
+}
+
+static int v4l_vidioc_s_audio(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_s_audio(file, fh, arg);
+}
+
+static int v4l_vidioc_g_input(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_g_input(file, fh, arg);
+}
+
+static int v4l_vidioc_g_edid(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_g_edid(file, fh, arg);
+}
+
+static int v4l_vidioc_s_edid(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_s_edid(file, fh, arg);
+}
+
+static int v4l_vidioc_g_output(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_g_output(file, fh, arg);
+}
+
+static int v4l_vidioc_g_audout(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_g_audout(file, fh, arg);
+}
+
+static int v4l_vidioc_s_audout(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_s_audout(file, fh, arg);
+}
+
+static int v4l_vidioc_g_selection(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_g_selection(file, fh, arg);
+}
+
+static int v4l_vidioc_s_selection(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_s_selection(file, fh, arg);
+}
+
+static int v4l_vidioc_g_jpegcomp(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_g_jpegcomp(file, fh, arg);
+}
+
+static int v4l_vidioc_s_jpegcomp(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_s_jpegcomp(file, fh, arg);
+}
+
+static int v4l_vidioc_enumaudio(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_enumaudio(file, fh, arg);
+}
+
+static int v4l_vidioc_enumaudout(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_enumaudout(file, fh, arg);
+}
+
+static int v4l_vidioc_enum_framesizes(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_enum_framesizes(file, fh, arg);
+}
+
+static int v4l_vidioc_enum_frameintervals(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_enum_frameintervals(file, fh, arg);
+}
+
+static int v4l_vidioc_g_enc_index(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_g_enc_index(file, fh, arg);
+}
+
+static int v4l_vidioc_encoder_cmd(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_encoder_cmd(file, fh, arg);
+}
+
+static int v4l_vidioc_try_encoder_cmd(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_try_encoder_cmd(file, fh, arg);
+}
+
+static int v4l_vidioc_decoder_cmd(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_decoder_cmd(file, fh, arg);
+}
+
+static int v4l_vidioc_try_decoder_cmd(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_try_decoder_cmd(file, fh, arg);
+}
+
+static int v4l_vidioc_s_dv_timings(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_s_dv_timings(file, fh, arg);
+}
+
+static int v4l_vidioc_g_dv_timings(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_g_dv_timings(file, fh, arg);
+}
+
+static int v4l_vidioc_enum_dv_timings(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_enum_dv_timings(file, fh, arg);
+}
+
+static int v4l_vidioc_query_dv_timings(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_query_dv_timings(file, fh, arg);
+}
+
+static int v4l_vidioc_dv_timings_cap(const struct v4l2_ioctl_ops *ops,
+				struct file *file, void *fh, void *arg)
+{
+	return ops->vidioc_dv_timings_cap(file, fh, arg);
+}
+
 struct v4l2_ioctl_info {
 	unsigned int ioctl;
 	u32 flags;
 	const char * const name;
-	union {
-		u32 offset;
-		int (*func)(const struct v4l2_ioctl_ops *ops,
-				struct file *file, void *fh, void *p);
-	} u;
+	int (*func)(const struct v4l2_ioctl_ops *ops,
+			struct file *file, void *fh, void *p);
 	void (*debug)(const void *arg, bool write_only);
-};
+} __do_const;
+typedef struct v4l2_ioctl_info __no_const v4l2_ioctl_info_no_const;
 
 /* This control needs a priority check */
 #define INFO_FL_PRIO	(1 << 0)
 /* This control can be valid if the filehandle passes a control handler. */
 #define INFO_FL_CTRL	(1 << 1)
-/* This is a standard ioctl, no need for special code */
-#define INFO_FL_STD	(1 << 2)
 /* This is ioctl has its own function */
-#define INFO_FL_FUNC	(1 << 3)
+#define INFO_FL_FUNC	(1 << 2)
 /* Queuing ioctl */
-#define INFO_FL_QUEUE	(1 << 4)
+#define INFO_FL_QUEUE	(1 << 3)
 /* Zero struct from after the field to the end */
 #define INFO_FL_CLEAR(v4l2_struct, field)			\
 	((offsetof(struct v4l2_struct, field) +			\
 	  sizeof(((struct v4l2_struct *)0)->field)) << 16)
 #define INFO_FL_CLEAR_MASK (_IOC_SIZEMASK << 16)
 
-#define IOCTL_INFO_STD(_ioctl, _vidioc, _debug, _flags)			\
-	[_IOC_NR(_ioctl)] = {						\
-		.ioctl = _ioctl,					\
-		.flags = _flags | INFO_FL_STD,				\
-		.name = #_ioctl,					\
-		.u.offset = offsetof(struct v4l2_ioctl_ops, _vidioc),	\
-		.debug = _debug,					\
-	}
-
 #define IOCTL_INFO_FNC(_ioctl, _func, _debug, _flags)			\
 	[_IOC_NR(_ioctl)] = {						\
 		.ioctl = _ioctl,					\
 		.flags = _flags | INFO_FL_FUNC,				\
 		.name = #_ioctl,					\
-		.u.func = _func,					\
+		.func = _func,						\
 		.debug = _debug,					\
 	}
 
@@ -2459,17 +2626,17 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
 	IOCTL_INFO_FNC(VIDIOC_S_FMT, v4l_s_fmt, v4l_print_format, INFO_FL_PRIO),
 	IOCTL_INFO_FNC(VIDIOC_REQBUFS, v4l_reqbufs, v4l_print_requestbuffers, INFO_FL_PRIO | INFO_FL_QUEUE),
 	IOCTL_INFO_FNC(VIDIOC_QUERYBUF, v4l_querybuf, v4l_print_buffer, INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_buffer, length)),
-	IOCTL_INFO_STD(VIDIOC_G_FBUF, vidioc_g_fbuf, v4l_print_framebuffer, 0),
-	IOCTL_INFO_STD(VIDIOC_S_FBUF, vidioc_s_fbuf, v4l_print_framebuffer, INFO_FL_PRIO),
+	IOCTL_INFO_FNC(VIDIOC_G_FBUF, v4l_vidioc_g_fbuf, v4l_print_framebuffer, 0),
+	IOCTL_INFO_FNC(VIDIOC_S_FBUF, v4l_vidioc_s_fbuf, v4l_print_framebuffer, INFO_FL_PRIO),
 	IOCTL_INFO_FNC(VIDIOC_OVERLAY, v4l_overlay, v4l_print_u32, INFO_FL_PRIO),
 	IOCTL_INFO_FNC(VIDIOC_QBUF, v4l_qbuf, v4l_print_buffer, INFO_FL_QUEUE),
-	IOCTL_INFO_STD(VIDIOC_EXPBUF, vidioc_expbuf, v4l_print_exportbuffer, INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_exportbuffer, flags)),
+	IOCTL_INFO_FNC(VIDIOC_EXPBUF, v4l_vidioc_expbuf, v4l_print_exportbuffer, INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_exportbuffer, flags)),
 	IOCTL_INFO_FNC(VIDIOC_DQBUF, v4l_dqbuf, v4l_print_buffer, INFO_FL_QUEUE),
 	IOCTL_INFO_FNC(VIDIOC_STREAMON, v4l_streamon, v4l_print_buftype, INFO_FL_PRIO | INFO_FL_QUEUE),
 	IOCTL_INFO_FNC(VIDIOC_STREAMOFF, v4l_streamoff, v4l_print_buftype, INFO_FL_PRIO | INFO_FL_QUEUE),
 	IOCTL_INFO_FNC(VIDIOC_G_PARM, v4l_g_parm, v4l_print_streamparm, INFO_FL_CLEAR(v4l2_streamparm, type)),
 	IOCTL_INFO_FNC(VIDIOC_S_PARM, v4l_s_parm, v4l_print_streamparm, INFO_FL_PRIO),
-	IOCTL_INFO_STD(VIDIOC_G_STD, vidioc_g_std, v4l_print_std, 0),
+	IOCTL_INFO_FNC(VIDIOC_G_STD, v4l_vidioc_g_std, v4l_print_std, 0),
 	IOCTL_INFO_FNC(VIDIOC_S_STD, v4l_s_std, v4l_print_std, INFO_FL_PRIO),
 	IOCTL_INFO_FNC(VIDIOC_ENUMSTD, v4l_enumstd, v4l_print_standard, INFO_FL_CLEAR(v4l2_standard, index)),
 	IOCTL_INFO_FNC(VIDIOC_ENUMINPUT, v4l_enuminput, v4l_print_enuminput, INFO_FL_CLEAR(v4l2_input, index)),
@@ -2477,19 +2644,19 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
 	IOCTL_INFO_FNC(VIDIOC_S_CTRL, v4l_s_ctrl, v4l_print_control, INFO_FL_PRIO | INFO_FL_CTRL),
 	IOCTL_INFO_FNC(VIDIOC_G_TUNER, v4l_g_tuner, v4l_print_tuner, INFO_FL_CLEAR(v4l2_tuner, index)),
 	IOCTL_INFO_FNC(VIDIOC_S_TUNER, v4l_s_tuner, v4l_print_tuner, INFO_FL_PRIO),
-	IOCTL_INFO_STD(VIDIOC_G_AUDIO, vidioc_g_audio, v4l_print_audio, 0),
-	IOCTL_INFO_STD(VIDIOC_S_AUDIO, vidioc_s_audio, v4l_print_audio, INFO_FL_PRIO),
+	IOCTL_INFO_FNC(VIDIOC_G_AUDIO, v4l_vidioc_g_audio, v4l_print_audio, 0),
+	IOCTL_INFO_FNC(VIDIOC_S_AUDIO, v4l_vidioc_s_audio, v4l_print_audio, INFO_FL_PRIO),
 	IOCTL_INFO_FNC(VIDIOC_QUERYCTRL, v4l_queryctrl, v4l_print_queryctrl, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_queryctrl, id)),
 	IOCTL_INFO_FNC(VIDIOC_QUERYMENU, v4l_querymenu, v4l_print_querymenu, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_querymenu, index)),
-	IOCTL_INFO_STD(VIDIOC_G_INPUT, vidioc_g_input, v4l_print_u32, 0),
+	IOCTL_INFO_FNC(VIDIOC_G_INPUT, v4l_vidioc_g_input, v4l_print_u32, 0),
 	IOCTL_INFO_FNC(VIDIOC_S_INPUT, v4l_s_input, v4l_print_u32, INFO_FL_PRIO),
-	IOCTL_INFO_STD(VIDIOC_G_EDID, vidioc_g_edid, v4l_print_edid, 0),
-	IOCTL_INFO_STD(VIDIOC_S_EDID, vidioc_s_edid, v4l_print_edid, INFO_FL_PRIO),
-	IOCTL_INFO_STD(VIDIOC_G_OUTPUT, vidioc_g_output, v4l_print_u32, 0),
+	IOCTL_INFO_FNC(VIDIOC_G_EDID, v4l_vidioc_g_edid, v4l_print_edid, 0),
+	IOCTL_INFO_FNC(VIDIOC_S_EDID, v4l_vidioc_s_edid, v4l_print_edid, INFO_FL_PRIO),
+	IOCTL_INFO_FNC(VIDIOC_G_OUTPUT, v4l_vidioc_g_output, v4l_print_u32, 0),
 	IOCTL_INFO_FNC(VIDIOC_S_OUTPUT, v4l_s_output, v4l_print_u32, INFO_FL_PRIO),
 	IOCTL_INFO_FNC(VIDIOC_ENUMOUTPUT, v4l_enumoutput, v4l_print_enumoutput, INFO_FL_CLEAR(v4l2_output, index)),
-	IOCTL_INFO_STD(VIDIOC_G_AUDOUT, vidioc_g_audout, v4l_print_audioout, 0),
-	IOCTL_INFO_STD(VIDIOC_S_AUDOUT, vidioc_s_audout, v4l_print_audioout, INFO_FL_PRIO),
+	IOCTL_INFO_FNC(VIDIOC_G_AUDOUT, v4l_vidioc_g_audout, v4l_print_audioout, 0),
+	IOCTL_INFO_FNC(VIDIOC_S_AUDOUT, v4l_vidioc_s_audout, v4l_print_audioout, INFO_FL_PRIO),
 	IOCTL_INFO_FNC(VIDIOC_G_MODULATOR, v4l_g_modulator, v4l_print_modulator, INFO_FL_CLEAR(v4l2_modulator, index)),
 	IOCTL_INFO_FNC(VIDIOC_S_MODULATOR, v4l_s_modulator, v4l_print_modulator, INFO_FL_PRIO),
 	IOCTL_INFO_FNC(VIDIOC_G_FREQUENCY, v4l_g_frequency, v4l_print_frequency, INFO_FL_CLEAR(v4l2_frequency, tuner)),
@@ -2497,14 +2664,14 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
 	IOCTL_INFO_FNC(VIDIOC_CROPCAP, v4l_cropcap, v4l_print_cropcap, INFO_FL_CLEAR(v4l2_cropcap, type)),
 	IOCTL_INFO_FNC(VIDIOC_G_CROP, v4l_g_crop, v4l_print_crop, INFO_FL_CLEAR(v4l2_crop, type)),
 	IOCTL_INFO_FNC(VIDIOC_S_CROP, v4l_s_crop, v4l_print_crop, INFO_FL_PRIO),
-	IOCTL_INFO_STD(VIDIOC_G_SELECTION, vidioc_g_selection, v4l_print_selection, INFO_FL_CLEAR(v4l2_selection, r)),
-	IOCTL_INFO_STD(VIDIOC_S_SELECTION, vidioc_s_selection, v4l_print_selection, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_selection, r)),
-	IOCTL_INFO_STD(VIDIOC_G_JPEGCOMP, vidioc_g_jpegcomp, v4l_print_jpegcompression, 0),
-	IOCTL_INFO_STD(VIDIOC_S_JPEGCOMP, vidioc_s_jpegcomp, v4l_print_jpegcompression, INFO_FL_PRIO),
+	IOCTL_INFO_FNC(VIDIOC_G_SELECTION, v4l_vidioc_g_selection, v4l_print_selection, INFO_FL_CLEAR(v4l2_selection, r)),
+	IOCTL_INFO_FNC(VIDIOC_S_SELECTION, v4l_vidioc_s_selection, v4l_print_selection, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_selection, r)),
+	IOCTL_INFO_FNC(VIDIOC_G_JPEGCOMP, v4l_vidioc_g_jpegcomp, v4l_print_jpegcompression, 0),
+	IOCTL_INFO_FNC(VIDIOC_S_JPEGCOMP, v4l_vidioc_s_jpegcomp, v4l_print_jpegcompression, INFO_FL_PRIO),
 	IOCTL_INFO_FNC(VIDIOC_QUERYSTD, v4l_querystd, v4l_print_std, 0),
 	IOCTL_INFO_FNC(VIDIOC_TRY_FMT, v4l_try_fmt, v4l_print_format, 0),
-	IOCTL_INFO_STD(VIDIOC_ENUMAUDIO, vidioc_enumaudio, v4l_print_audio, INFO_FL_CLEAR(v4l2_audio, index)),
-	IOCTL_INFO_STD(VIDIOC_ENUMAUDOUT, vidioc_enumaudout, v4l_print_audioout, INFO_FL_CLEAR(v4l2_audioout, index)),
+	IOCTL_INFO_FNC(VIDIOC_ENUMAUDIO, v4l_vidioc_enumaudio, v4l_print_audio, INFO_FL_CLEAR(v4l2_audio, index)),
+	IOCTL_INFO_FNC(VIDIOC_ENUMAUDOUT, v4l_vidioc_enumaudout, v4l_print_audioout, INFO_FL_CLEAR(v4l2_audioout, index)),
 	IOCTL_INFO_FNC(VIDIOC_G_PRIORITY, v4l_g_priority, v4l_print_u32, 0),
 	IOCTL_INFO_FNC(VIDIOC_S_PRIORITY, v4l_s_priority, v4l_print_u32, INFO_FL_PRIO),
 	IOCTL_INFO_FNC(VIDIOC_G_SLICED_VBI_CAP, v4l_g_sliced_vbi_cap, v4l_print_sliced_vbi_cap, INFO_FL_CLEAR(v4l2_sliced_vbi_cap, type)),
@@ -2512,26 +2679,26 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
 	IOCTL_INFO_FNC(VIDIOC_G_EXT_CTRLS, v4l_g_ext_ctrls, v4l_print_ext_controls, INFO_FL_CTRL),
 	IOCTL_INFO_FNC(VIDIOC_S_EXT_CTRLS, v4l_s_ext_ctrls, v4l_print_ext_controls, INFO_FL_PRIO | INFO_FL_CTRL),
 	IOCTL_INFO_FNC(VIDIOC_TRY_EXT_CTRLS, v4l_try_ext_ctrls, v4l_print_ext_controls, INFO_FL_CTRL),
-	IOCTL_INFO_STD(VIDIOC_ENUM_FRAMESIZES, vidioc_enum_framesizes, v4l_print_frmsizeenum, INFO_FL_CLEAR(v4l2_frmsizeenum, pixel_format)),
-	IOCTL_INFO_STD(VIDIOC_ENUM_FRAMEINTERVALS, vidioc_enum_frameintervals, v4l_print_frmivalenum, INFO_FL_CLEAR(v4l2_frmivalenum, height)),
-	IOCTL_INFO_STD(VIDIOC_G_ENC_INDEX, vidioc_g_enc_index, v4l_print_enc_idx, 0),
-	IOCTL_INFO_STD(VIDIOC_ENCODER_CMD, vidioc_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_encoder_cmd, flags)),
-	IOCTL_INFO_STD(VIDIOC_TRY_ENCODER_CMD, vidioc_try_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_CLEAR(v4l2_encoder_cmd, flags)),
-	IOCTL_INFO_STD(VIDIOC_DECODER_CMD, vidioc_decoder_cmd, v4l_print_decoder_cmd, INFO_FL_PRIO),
-	IOCTL_INFO_STD(VIDIOC_TRY_DECODER_CMD, vidioc_try_decoder_cmd, v4l_print_decoder_cmd, 0),
+	IOCTL_INFO_FNC(VIDIOC_ENUM_FRAMESIZES, v4l_vidioc_enum_framesizes, v4l_print_frmsizeenum, INFO_FL_CLEAR(v4l2_frmsizeenum, pixel_format)),
+	IOCTL_INFO_FNC(VIDIOC_ENUM_FRAMEINTERVALS, v4l_vidioc_enum_frameintervals, v4l_print_frmivalenum, INFO_FL_CLEAR(v4l2_frmivalenum, height)),
+	IOCTL_INFO_FNC(VIDIOC_G_ENC_INDEX, v4l_vidioc_g_enc_index, v4l_print_enc_idx, 0),
+	IOCTL_INFO_FNC(VIDIOC_ENCODER_CMD, v4l_vidioc_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_encoder_cmd, flags)),
+	IOCTL_INFO_FNC(VIDIOC_TRY_ENCODER_CMD, v4l_vidioc_try_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_CLEAR(v4l2_encoder_cmd, flags)),
+	IOCTL_INFO_FNC(VIDIOC_DECODER_CMD, v4l_vidioc_decoder_cmd, v4l_print_decoder_cmd, INFO_FL_PRIO),
+	IOCTL_INFO_FNC(VIDIOC_TRY_DECODER_CMD, v4l_vidioc_try_decoder_cmd, v4l_print_decoder_cmd, 0),
 	IOCTL_INFO_FNC(VIDIOC_DBG_S_REGISTER, v4l_dbg_s_register, v4l_print_dbg_register, 0),
 	IOCTL_INFO_FNC(VIDIOC_DBG_G_REGISTER, v4l_dbg_g_register, v4l_print_dbg_register, 0),
 	IOCTL_INFO_FNC(VIDIOC_S_HW_FREQ_SEEK, v4l_s_hw_freq_seek, v4l_print_hw_freq_seek, INFO_FL_PRIO),
-	IOCTL_INFO_STD(VIDIOC_S_DV_TIMINGS, vidioc_s_dv_timings, v4l_print_dv_timings, INFO_FL_PRIO),
-	IOCTL_INFO_STD(VIDIOC_G_DV_TIMINGS, vidioc_g_dv_timings, v4l_print_dv_timings, 0),
+	IOCTL_INFO_FNC(VIDIOC_S_DV_TIMINGS, v4l_vidioc_s_dv_timings, v4l_print_dv_timings, INFO_FL_PRIO),
+	IOCTL_INFO_FNC(VIDIOC_G_DV_TIMINGS, v4l_vidioc_g_dv_timings, v4l_print_dv_timings, 0),
 	IOCTL_INFO_FNC(VIDIOC_DQEVENT, v4l_dqevent, v4l_print_event, 0),
 	IOCTL_INFO_FNC(VIDIOC_SUBSCRIBE_EVENT, v4l_subscribe_event, v4l_print_event_subscription, 0),
 	IOCTL_INFO_FNC(VIDIOC_UNSUBSCRIBE_EVENT, v4l_unsubscribe_event, v4l_print_event_subscription, 0),
 	IOCTL_INFO_FNC(VIDIOC_CREATE_BUFS, v4l_create_bufs, v4l_print_create_buffers, INFO_FL_PRIO | INFO_FL_QUEUE),
 	IOCTL_INFO_FNC(VIDIOC_PREPARE_BUF, v4l_prepare_buf, v4l_print_buffer, INFO_FL_QUEUE),
-	IOCTL_INFO_STD(VIDIOC_ENUM_DV_TIMINGS, vidioc_enum_dv_timings, v4l_print_enum_dv_timings, 0),
-	IOCTL_INFO_STD(VIDIOC_QUERY_DV_TIMINGS, vidioc_query_dv_timings, v4l_print_dv_timings, 0),
-	IOCTL_INFO_STD(VIDIOC_DV_TIMINGS_CAP, vidioc_dv_timings_cap, v4l_print_dv_timings_cap, INFO_FL_CLEAR(v4l2_dv_timings_cap, type)),
+	IOCTL_INFO_FNC(VIDIOC_ENUM_DV_TIMINGS, v4l_vidioc_enum_dv_timings, v4l_print_enum_dv_timings, 0),
+	IOCTL_INFO_FNC(VIDIOC_QUERY_DV_TIMINGS, v4l_vidioc_query_dv_timings, v4l_print_dv_timings, 0),
+	IOCTL_INFO_FNC(VIDIOC_DV_TIMINGS_CAP, v4l_vidioc_dv_timings_cap, v4l_print_dv_timings_cap, INFO_FL_CLEAR(v4l2_dv_timings_cap, type)),
 	IOCTL_INFO_FNC(VIDIOC_ENUM_FREQ_BANDS, v4l_enum_freq_bands, v4l_print_freq_band, 0),
 	IOCTL_INFO_FNC(VIDIOC_DBG_G_CHIP_INFO, v4l_dbg_g_chip_info, v4l_print_dbg_chip_info, INFO_FL_CLEAR(v4l2_dbg_chip_info, match)),
 	IOCTL_INFO_FNC(VIDIOC_QUERY_EXT_CTRL, v4l_query_ext_ctrl, v4l_print_query_ext_ctrl, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_query_ext_ctrl, id)),
@@ -2600,7 +2767,7 @@ static long __video_do_ioctl(struct file *file,
 	struct video_device *vfd = video_devdata(file);
 	const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops;
 	bool write_only = false;
-	struct v4l2_ioctl_info default_info;
+	v4l2_ioctl_info_no_const default_info;
 	const struct v4l2_ioctl_info *info;
 	void *fh = file->private_data;
 	struct v4l2_fh *vfh = NULL;
@@ -2636,14 +2803,8 @@ static long __video_do_ioctl(struct file *file,
 	}
 
 	write_only = _IOC_DIR(cmd) == _IOC_WRITE;
-	if (info->flags & INFO_FL_STD) {
-		typedef int (*vidioc_op)(struct file *file, void *fh, void *p);
-		const void *p = vfd->ioctl_ops;
-		const vidioc_op *vidioc = p + info->u.offset;
-
-		ret = (*vidioc)(file, fh, arg);
-	} else if (info->flags & INFO_FL_FUNC) {
-		ret = info->u.func(ops, file, fh, arg);
+	if (info->flags & INFO_FL_FUNC) {
+		ret = info->func(ops, file, fh, arg);
 	} else if (!ops->vidioc_default) {
 		ret = -ENOTTY;
 	} else {
@@ -2691,7 +2852,7 @@ static int check_array_args(unsigned int cmd, void *parg, size_t *array_size,
 				ret = -EINVAL;
 				break;
 			}
-			*user_ptr = (void __user *)buf->m.planes;
+			*user_ptr = (void __force_user *)buf->m.planes;
 			*kernel_ptr = (void **)&buf->m.planes;
 			*array_size = sizeof(struct v4l2_plane) * buf->length;
 			ret = 1;
@@ -2708,7 +2869,7 @@ static int check_array_args(unsigned int cmd, void *parg, size_t *array_size,
 				ret = -EINVAL;
 				break;
 			}
-			*user_ptr = (void __user *)edid->edid;
+			*user_ptr = (void __force_user *)edid->edid;
 			*kernel_ptr = (void **)&edid->edid;
 			*array_size = edid->blocks * 128;
 			ret = 1;
@@ -2726,7 +2887,7 @@ static int check_array_args(unsigned int cmd, void *parg, size_t *array_size,
 				ret = -EINVAL;
 				break;
 			}
-			*user_ptr = (void __user *)ctrls->controls;
+			*user_ptr = (void __force_user *)ctrls->controls;
 			*kernel_ptr = (void **)&ctrls->controls;
 			*array_size = sizeof(struct v4l2_ext_control)
 				    * ctrls->count;
@@ -2827,7 +2988,7 @@ video_usercopy(struct file *file, unsigned int cmd, unsigned long arg,
 	}
 
 	if (has_array_args) {
-		*kernel_ptr = (void __force *)user_ptr;
+		*kernel_ptr = (void __force_kernel *)user_ptr;
 		if (copy_to_user(user_ptr, mbuf, array_size))
 			err = -EFAULT;
 		goto out_array_args;
diff --git a/drivers/memory/omap-gpmc.c b/drivers/memory/omap-gpmc.c
index 21825dd..6e29aa3 100644
--- a/drivers/memory/omap-gpmc.c
+++ b/drivers/memory/omap-gpmc.c
@@ -232,7 +232,6 @@ struct omap3_gpmc_regs {
 };
 
 static struct gpmc_client_irq gpmc_client_irq[GPMC_NR_IRQ];
-static struct irq_chip gpmc_irq_chip;
 static int gpmc_irq_start;
 
 static struct resource	gpmc_mem_root;
@@ -1165,6 +1164,17 @@ static void gpmc_irq_noop(struct irq_data *data) { }
 
 static unsigned int gpmc_irq_noop_ret(struct irq_data *data) { return 0; }
 
+static struct irq_chip gpmc_irq_chip = {
+	.name = "gpmc",
+	.irq_startup = gpmc_irq_noop_ret,
+	.irq_enable = gpmc_irq_enable,
+	.irq_disable = gpmc_irq_disable,
+	.irq_shutdown = gpmc_irq_noop,
+	.irq_ack = gpmc_irq_noop,
+	.irq_mask = gpmc_irq_noop,
+	.irq_unmask = gpmc_irq_noop,
+};
+
 static int gpmc_setup_irq(void)
 {
 	int i;
@@ -1179,15 +1189,6 @@ static int gpmc_setup_irq(void)
 		return gpmc_irq_start;
 	}
 
-	gpmc_irq_chip.name = "gpmc";
-	gpmc_irq_chip.irq_startup = gpmc_irq_noop_ret;
-	gpmc_irq_chip.irq_enable = gpmc_irq_enable;
-	gpmc_irq_chip.irq_disable = gpmc_irq_disable;
-	gpmc_irq_chip.irq_shutdown = gpmc_irq_noop;
-	gpmc_irq_chip.irq_ack = gpmc_irq_noop;
-	gpmc_irq_chip.irq_mask = gpmc_irq_noop;
-	gpmc_irq_chip.irq_unmask = gpmc_irq_noop;
-
 	gpmc_client_irq[0].bitmask = GPMC_IRQ_FIFOEVENTENABLE;
 	gpmc_client_irq[1].bitmask = GPMC_IRQ_COUNT_EVENT;
 
diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index 5537f8d..f990a1d 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -99,7 +99,7 @@ module_param(mpt_channel_mapping, int, 0);
 MODULE_PARM_DESC(mpt_channel_mapping, " Mapping id's to channels (default=0)");
 
 static int mpt_debug_level;
-static int mpt_set_debug_level(const char *val, struct kernel_param *kp);
+static int mpt_set_debug_level(const char *val, const struct kernel_param *kp);
 module_param_call(mpt_debug_level, mpt_set_debug_level, param_get_int,
 		  &mpt_debug_level, 0600);
 MODULE_PARM_DESC(mpt_debug_level,
@@ -242,7 +242,7 @@ pci_enable_io_access(struct pci_dev *pdev)
 	pci_write_config_word(pdev, PCI_COMMAND, command_reg);
 }
 
-static int mpt_set_debug_level(const char *val, struct kernel_param *kp)
+static int mpt_set_debug_level(const char *val, const struct kernel_param *kp)
 {
 	int ret = param_set_int(val, kp);
 	MPT_ADAPTER *ioc;
@@ -6748,8 +6748,13 @@ static int mpt_iocinfo_proc_show(struct seq_file *m, void *v)
 	seq_printf(m, "  MaxChainDepth = 0x%02x frames\n", ioc->facts.MaxChainDepth);
 	seq_printf(m, "  MinBlockSize = 0x%02x bytes\n", 4*ioc->facts.BlockSize);
 
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+	seq_printf(m, "  RequestFrames @ 0x%p (Dma @ 0x%p)\n", NULL, NULL);
+#else
 	seq_printf(m, "  RequestFrames @ 0x%p (Dma @ 0x%p)\n",
 					(void *)ioc->req_frames, (void *)(ulong)ioc->req_frames_dma);
+#endif
+
 	/*
 	 *  Rounding UP to nearest 4-kB boundary here...
 	 */
@@ -6762,7 +6767,11 @@ static int mpt_iocinfo_proc_show(struct seq_file *m, void *v)
 					ioc->facts.GlobalCredits);
 
 	seq_printf(m, "  Frames   @ 0x%p (Dma @ 0x%p)\n",
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+					NULL, NULL);
+#else
 					(void *)ioc->alloc, (void *)(ulong)ioc->alloc_dma);
+#endif
 	sz = (ioc->reply_sz * ioc->reply_depth) + 128;
 	seq_printf(m, "    {CurRepSz=%d} x {CurRepDepth=%d} = %d bytes ^= 0x%x\n",
 					ioc->reply_sz, ioc->reply_depth, ioc->reply_sz*ioc->reply_depth, sz);
diff --git a/drivers/message/fusion/mptlan.c b/drivers/message/fusion/mptlan.c
index cbe9607..50db310 100644
--- a/drivers/message/fusion/mptlan.c
+++ b/drivers/message/fusion/mptlan.c
@@ -680,7 +680,7 @@ out:
 }
 
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
-static int
+static netdev_tx_t
 mpt_lan_sdu_send (struct sk_buff *skb, struct net_device *dev)
 {
 	struct mpt_lan_priv *priv = netdev_priv(dev);
diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index 7ebccfa..a0cd0e6 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -446,6 +446,23 @@ mptsas_is_end_device(struct mptsas_devinfo * attached)
 		return 0;
 }
 
+static inline void
+mptsas_set_rphy(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info, struct sas_rphy *rphy)
+{
+	if (phy_info->port_details) {
+		phy_info->port_details->rphy = rphy;
+		dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sas_rphy_add: rphy=%p\n",
+		    ioc->name, rphy));
+	}
+
+	if (rphy) {
+		dsaswideprintk(ioc, dev_printk(KERN_DEBUG,
+		    &rphy->dev, MYIOC_s_FMT "add:", ioc->name));
+		dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "rphy=%p release=%p\n",
+		    ioc->name, rphy, rphy->dev.release));
+	}
+}
+
 /* no mutex */
 static void
 mptsas_port_delete(MPT_ADAPTER *ioc, struct mptsas_portinfo_details * port_details)
@@ -484,23 +501,6 @@ mptsas_get_rphy(struct mptsas_phyinfo *phy_info)
 		return NULL;
 }
 
-static inline void
-mptsas_set_rphy(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info, struct sas_rphy *rphy)
-{
-	if (phy_info->port_details) {
-		phy_info->port_details->rphy = rphy;
-		dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sas_rphy_add: rphy=%p\n",
-		    ioc->name, rphy));
-	}
-
-	if (rphy) {
-		dsaswideprintk(ioc, dev_printk(KERN_DEBUG,
-		    &rphy->dev, MYIOC_s_FMT "add:", ioc->name));
-		dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "rphy=%p release=%p\n",
-		    ioc->name, rphy, rphy->dev.release));
-	}
-}
-
 static inline struct sas_port *
 mptsas_get_port(struct mptsas_phyinfo *phy_info)
 {
diff --git a/drivers/mfd/ab8500-debugfs.c b/drivers/mfd/ab8500-debugfs.c
index 69d9fff..62cd090 100644
--- a/drivers/mfd/ab8500-debugfs.c
+++ b/drivers/mfd/ab8500-debugfs.c
@@ -100,7 +100,7 @@ static int irq_last;
 static u32 *irq_count;
 static int num_irqs;
 
-static struct device_attribute **dev_attr;
+static device_attribute_no_const **dev_attr;
 static char **event_name;
 
 static u8 avg_sample = SAMPLE_16;
diff --git a/drivers/mfd/kempld-core.c b/drivers/mfd/kempld-core.c
index 05b9245..9f05055 100644
--- a/drivers/mfd/kempld-core.c
+++ b/drivers/mfd/kempld-core.c
@@ -494,7 +494,7 @@ static struct platform_driver kempld_driver = {
 	.remove		= kempld_remove,
 };
 
-static struct dmi_system_id kempld_dmi_table[] __initdata = {
+static const struct dmi_system_id kempld_dmi_table[] __initconst = {
 	{
 		.ident = "BBL6",
 		.matches = {
diff --git a/drivers/mfd/max8925-i2c.c b/drivers/mfd/max8925-i2c.c
index 70443b1..e6da89d 100644
--- a/drivers/mfd/max8925-i2c.c
+++ b/drivers/mfd/max8925-i2c.c
@@ -152,7 +152,7 @@ static int max8925_probe(struct i2c_client *client,
 				   const struct i2c_device_id *id)
 {
 	struct max8925_platform_data *pdata = dev_get_platdata(&client->dev);
-	static struct max8925_chip *chip;
+	struct max8925_chip *chip;
 	struct device_node *node = client->dev.of_node;
 
 	if (node && !pdata) {
diff --git a/drivers/mfd/tps65910.c b/drivers/mfd/tps65910.c
index f7ab115..16b2087 100644
--- a/drivers/mfd/tps65910.c
+++ b/drivers/mfd/tps65910.c
@@ -230,7 +230,7 @@ static int tps65910_irq_init(struct tps65910 *tps65910, int irq,
 		    struct tps65910_platform_data *pdata)
 {
 	int ret = 0;
-	static struct regmap_irq_chip *tps6591x_irqs_chip;
+	struct regmap_irq_chip *tps6591x_irqs_chip;
 
 	if (!irq) {
 		dev_warn(tps65910->dev, "No interrupt support, no core IRQ\n");
diff --git a/drivers/mfd/twl4030-irq.c b/drivers/mfd/twl4030-irq.c
index 40e51b0..af35565 100644
--- a/drivers/mfd/twl4030-irq.c
+++ b/drivers/mfd/twl4030-irq.c
@@ -34,6 +34,7 @@
 #include <linux/of.h>
 #include <linux/irqdomain.h>
 #include <linux/i2c/twl.h>
+#include <asm/pgtable.h>
 
 #include "twl-core.h"
 
@@ -720,10 +721,12 @@ int twl4030_init_irq(struct device *dev, int irq_num)
 	 * Install an irq handler for each of the SIH modules;
 	 * clone dummy irq_chip since PIH can't *do* anything
 	 */
-	twl4030_irq_chip = dummy_irq_chip;
-	twl4030_irq_chip.name = "twl4030";
+	pax_open_kernel();
+	memcpy((void *)&twl4030_irq_chip, &dummy_irq_chip, sizeof twl4030_irq_chip);
+	const_cast(twl4030_irq_chip.name) = "twl4030";
 
-	twl4030_sih_irq_chip.irq_ack = dummy_irq_chip.irq_ack;
+	const_cast(twl4030_sih_irq_chip.irq_ack) = dummy_irq_chip.irq_ack;
+	pax_close_kernel();
 
 	for (i = irq_base; i < irq_end; i++) {
 		irq_set_chip_and_handler(i, &twl4030_irq_chip,
diff --git a/drivers/misc/c2port/core.c b/drivers/misc/c2port/core.c
index 1922cb8..e14fb42 100644
--- a/drivers/misc/c2port/core.c
+++ b/drivers/misc/c2port/core.c
@@ -918,7 +918,9 @@ struct c2port_device *c2port_device_register(char *name,
 		goto error_idr_alloc;
 	c2dev->id = ret;
 
-	bin_attr_flash_data.size = ops->blocks_num * ops->block_size;
+	pax_open_kernel();
+	const_cast(bin_attr_flash_data.size) = ops->blocks_num * ops->block_size;
+	pax_close_kernel();
 
 	c2dev->dev = device_create(c2port_class, NULL, 0, c2dev,
 				   "c2port%d", c2dev->id);
diff --git a/drivers/misc/kgdbts.c b/drivers/misc/kgdbts.c
index 99635dd..255bd78 100644
--- a/drivers/misc/kgdbts.c
+++ b/drivers/misc/kgdbts.c
@@ -834,7 +834,7 @@ static void run_plant_and_detach_test(int is_early)
 	char before[BREAK_INSTR_SIZE];
 	char after[BREAK_INSTR_SIZE];
 
-	probe_kernel_read(before, (char *)kgdbts_break_test,
+	probe_kernel_read(before, (void *)ktla_ktva((unsigned long)kgdbts_break_test),
 	  BREAK_INSTR_SIZE);
 	init_simple_test();
 	ts.tst = plant_and_detach_test;
@@ -842,7 +842,7 @@ static void run_plant_and_detach_test(int is_early)
 	/* Activate test with initial breakpoint */
 	if (!is_early)
 		kgdb_breakpoint();
-	probe_kernel_read(after, (char *)kgdbts_break_test,
+	probe_kernel_read(after, (void *)ktla_ktva((unsigned long)kgdbts_break_test),
 	  BREAK_INSTR_SIZE);
 	if (memcmp(before, after, BREAK_INSTR_SIZE)) {
 		printk(KERN_CRIT "kgdbts: ERROR kgdb corrupted memory\n");
@@ -1130,7 +1130,7 @@ static void kgdbts_put_char(u8 chr)
 		ts.run_test(0, chr);
 }
 
-static int param_set_kgdbts_var(const char *kmessage, struct kernel_param *kp)
+static int param_set_kgdbts_var(const char *kmessage, const struct kernel_param *kp)
 {
 	int len = strlen(kmessage);
 
diff --git a/drivers/misc/lis3lv02d/lis3lv02d.c b/drivers/misc/lis3lv02d/lis3lv02d.c
index fb8705f..dc2f679 100644
--- a/drivers/misc/lis3lv02d/lis3lv02d.c
+++ b/drivers/misc/lis3lv02d/lis3lv02d.c
@@ -497,7 +497,7 @@ static irqreturn_t lis302dl_interrupt(int irq, void *data)
 	 * the lid is closed. This leads to interrupts as soon as a little move
 	 * is done.
 	 */
-	atomic_inc(&lis3->count);
+	atomic_inc_unchecked(&lis3->count);
 
 	wake_up_interruptible(&lis3->misc_wait);
 	kill_fasync(&lis3->async_queue, SIGIO, POLL_IN);
@@ -583,7 +583,7 @@ static int lis3lv02d_misc_open(struct inode *inode, struct file *file)
 	if (lis3->pm_dev)
 		pm_runtime_get_sync(lis3->pm_dev);
 
-	atomic_set(&lis3->count, 0);
+	atomic_set_unchecked(&lis3->count, 0);
 	return 0;
 }
 
@@ -615,7 +615,7 @@ static ssize_t lis3lv02d_misc_read(struct file *file, char __user *buf,
 	add_wait_queue(&lis3->misc_wait, &wait);
 	while (true) {
 		set_current_state(TASK_INTERRUPTIBLE);
-		data = atomic_xchg(&lis3->count, 0);
+		data = atomic_xchg_unchecked(&lis3->count, 0);
 		if (data)
 			break;
 
@@ -656,7 +656,7 @@ static unsigned int lis3lv02d_misc_poll(struct file *file, poll_table *wait)
 					      struct lis3lv02d, miscdev);
 
 	poll_wait(file, &lis3->misc_wait, wait);
-	if (atomic_read(&lis3->count))
+	if (atomic_read_unchecked(&lis3->count))
 		return POLLIN | POLLRDNORM;
 	return 0;
 }
diff --git a/drivers/misc/lis3lv02d/lis3lv02d.h b/drivers/misc/lis3lv02d/lis3lv02d.h
index c439c82..1f20f57 100644
--- a/drivers/misc/lis3lv02d/lis3lv02d.h
+++ b/drivers/misc/lis3lv02d/lis3lv02d.h
@@ -297,7 +297,7 @@ struct lis3lv02d {
 	struct input_polled_dev	*idev;     /* input device */
 	struct platform_device	*pdev;     /* platform device */
 	struct regulator_bulk_data regulators[2];
-	atomic_t		count;     /* interrupt count after last read */
+	atomic_unchecked_t	count;     /* interrupt count after last read */
 	union axis_conversion	ac;        /* hw -> logical axis */
 	int			mapped_btns[3];
 
diff --git a/drivers/misc/mic/scif/scif_api.c b/drivers/misc/mic/scif/scif_api.c
index ddc9e4b..9e27f41 100644
--- a/drivers/misc/mic/scif/scif_api.c
+++ b/drivers/misc/mic/scif/scif_api.c
@@ -1486,10 +1486,12 @@ int scif_client_register(struct scif_client *client)
 {
 	struct subsys_interface *si = &client->si;
 
-	si->name = client->name;
-	si->subsys = &scif_peer_bus;
-	si->add_dev = scif_add_client_dev;
-	si->remove_dev = scif_remove_client_dev;
+	pax_open_kernel();
+	const_cast(si->name) = client->name;
+	const_cast(si->subsys) = &scif_peer_bus;
+	const_cast(si->add_dev) = scif_add_client_dev;
+	const_cast(si->remove_dev) = scif_remove_client_dev;
+	pax_close_kernel();
 
 	return subsys_interface_register(&client->si);
 }
diff --git a/drivers/misc/mic/scif/scif_rb.c b/drivers/misc/mic/scif/scif_rb.c
index 637cc46..4fb1267 100644
--- a/drivers/misc/mic/scif/scif_rb.c
+++ b/drivers/misc/mic/scif/scif_rb.c
@@ -138,7 +138,7 @@ void scif_rb_commit(struct scif_rb *rb)
 	 * the read barrier in scif_rb_count(..)
 	 */
 	wmb();
-	ACCESS_ONCE(*rb->write_ptr) = rb->current_write_offset;
+	ACCESS_ONCE_RW(*rb->write_ptr) = rb->current_write_offset;
 #ifdef CONFIG_INTEL_MIC_CARD
 	/*
 	 * X100 Si bug: For the case where a Core is performing an EXT_WR
@@ -147,7 +147,7 @@ void scif_rb_commit(struct scif_rb *rb)
 	 * This way, if ordering is violated for the Interrupt Message, it will
 	 * fall just behind the first Posted associated with the first EXT_WR.
 	 */
-	ACCESS_ONCE(*rb->write_ptr) = rb->current_write_offset;
+	ACCESS_ONCE_RW(*rb->write_ptr) = rb->current_write_offset;
 #endif
 }
 
@@ -210,7 +210,7 @@ void scif_rb_update_read_ptr(struct scif_rb *rb)
 	 * scif_rb_space(..)
 	 */
 	mb();
-	ACCESS_ONCE(*rb->read_ptr) = new_offset;
+	ACCESS_ONCE_RW(*rb->read_ptr) = new_offset;
 #ifdef CONFIG_INTEL_MIC_CARD
 	/*
 	 * X100 Si Bug: For the case where a Core is performing an EXT_WR
@@ -219,7 +219,7 @@ void scif_rb_update_read_ptr(struct scif_rb *rb)
 	 * This way, if ordering is violated for the Interrupt Message, it will
 	 * fall just behind the first Posted associated with the first EXT_WR.
 	 */
-	ACCESS_ONCE(*rb->read_ptr) = new_offset;
+	ACCESS_ONCE_RW(*rb->read_ptr) = new_offset;
 #endif
 }
 
diff --git a/drivers/misc/panel.c b/drivers/misc/panel.c
index 6030ac5..e498727 100644
--- a/drivers/misc/panel.c
+++ b/drivers/misc/panel.c
@@ -1983,7 +1983,7 @@ static void panel_process_inputs(void)
 	}
 }
 
-static void panel_scan_timer(void)
+static void panel_scan_timer(unsigned long data)
 {
 	if (keypad.enabled && keypad_initialized) {
 		if (spin_trylock_irq(&pprt_lock)) {
@@ -2019,7 +2019,7 @@ static void init_scan_timer(void)
 	if (scan_timer.function)
 		return;		/* already started */
 
-	setup_timer(&scan_timer, (void *)&panel_scan_timer, 0);
+	setup_timer(&scan_timer, &panel_scan_timer, 0);
 	scan_timer.expires = jiffies + INPUT_POLL_TIME;
 	add_timer(&scan_timer);
 }
diff --git a/drivers/misc/sgi-gru/gruhandles.c b/drivers/misc/sgi-gru/gruhandles.c
index 1ee8e82..785f528 100644
--- a/drivers/misc/sgi-gru/gruhandles.c
+++ b/drivers/misc/sgi-gru/gruhandles.c
@@ -44,8 +44,8 @@ static void update_mcs_stats(enum mcs_op op, unsigned long clks)
 	unsigned long nsec;
 
 	nsec = CLKS2NSEC(clks);
-	atomic_long_inc(&mcs_op_statistics[op].count);
-	atomic_long_add(nsec, &mcs_op_statistics[op].total);
+	atomic_long_inc_unchecked(&mcs_op_statistics[op].count);
+	atomic_long_add_unchecked(nsec, &mcs_op_statistics[op].total);
 	if (mcs_op_statistics[op].max < nsec)
 		mcs_op_statistics[op].max = nsec;
 }
diff --git a/drivers/misc/sgi-gru/gruprocfs.c b/drivers/misc/sgi-gru/gruprocfs.c
index 4f76359..cdfcb2e 100644
--- a/drivers/misc/sgi-gru/gruprocfs.c
+++ b/drivers/misc/sgi-gru/gruprocfs.c
@@ -32,9 +32,9 @@
 
 #define printstat(s, f)		printstat_val(s, &gru_stats.f, #f)
 
-static void printstat_val(struct seq_file *s, atomic_long_t *v, char *id)
+static void printstat_val(struct seq_file *s, atomic_long_unchecked_t *v, char *id)
 {
-	unsigned long val = atomic_long_read(v);
+	unsigned long val = atomic_long_read_unchecked(v);
 
 	seq_printf(s, "%16lu %s\n", val, id);
 }
@@ -134,8 +134,8 @@ static int mcs_statistics_show(struct seq_file *s, void *p)
 
 	seq_printf(s, "%-20s%12s%12s%12s\n", "#id", "count", "aver-clks", "max-clks");
 	for (op = 0; op < mcsop_last; op++) {
-		count = atomic_long_read(&mcs_op_statistics[op].count);
-		total = atomic_long_read(&mcs_op_statistics[op].total);
+		count = atomic_long_read_unchecked(&mcs_op_statistics[op].count);
+		total = atomic_long_read_unchecked(&mcs_op_statistics[op].total);
 		max = mcs_op_statistics[op].max;
 		seq_printf(s, "%-20s%12ld%12ld%12ld\n", id[op], count,
 			   count ? total / count : 0, max);
diff --git a/drivers/misc/sgi-gru/grutables.h b/drivers/misc/sgi-gru/grutables.h
index 5c3ce24..4915ccb 100644
--- a/drivers/misc/sgi-gru/grutables.h
+++ b/drivers/misc/sgi-gru/grutables.h
@@ -167,82 +167,82 @@ extern unsigned int gru_max_gids;
  * GRU statistics.
  */
 struct gru_stats_s {
-	atomic_long_t vdata_alloc;
-	atomic_long_t vdata_free;
-	atomic_long_t gts_alloc;
-	atomic_long_t gts_free;
-	atomic_long_t gms_alloc;
-	atomic_long_t gms_free;
-	atomic_long_t gts_double_allocate;
-	atomic_long_t assign_context;
-	atomic_long_t assign_context_failed;
-	atomic_long_t free_context;
-	atomic_long_t load_user_context;
-	atomic_long_t load_kernel_context;
-	atomic_long_t lock_kernel_context;
-	atomic_long_t unlock_kernel_context;
-	atomic_long_t steal_user_context;
-	atomic_long_t steal_kernel_context;
-	atomic_long_t steal_context_failed;
-	atomic_long_t nopfn;
-	atomic_long_t asid_new;
-	atomic_long_t asid_next;
-	atomic_long_t asid_wrap;
-	atomic_long_t asid_reuse;
-	atomic_long_t intr;
-	atomic_long_t intr_cbr;
-	atomic_long_t intr_tfh;
-	atomic_long_t intr_spurious;
-	atomic_long_t intr_mm_lock_failed;
-	atomic_long_t call_os;
-	atomic_long_t call_os_wait_queue;
-	atomic_long_t user_flush_tlb;
-	atomic_long_t user_unload_context;
-	atomic_long_t user_exception;
-	atomic_long_t set_context_option;
-	atomic_long_t check_context_retarget_intr;
-	atomic_long_t check_context_unload;
-	atomic_long_t tlb_dropin;
-	atomic_long_t tlb_preload_page;
-	atomic_long_t tlb_dropin_fail_no_asid;
-	atomic_long_t tlb_dropin_fail_upm;
-	atomic_long_t tlb_dropin_fail_invalid;
-	atomic_long_t tlb_dropin_fail_range_active;
-	atomic_long_t tlb_dropin_fail_idle;
-	atomic_long_t tlb_dropin_fail_fmm;
-	atomic_long_t tlb_dropin_fail_no_exception;
-	atomic_long_t tfh_stale_on_fault;
-	atomic_long_t mmu_invalidate_range;
-	atomic_long_t mmu_invalidate_page;
-	atomic_long_t flush_tlb;
-	atomic_long_t flush_tlb_gru;
-	atomic_long_t flush_tlb_gru_tgh;
-	atomic_long_t flush_tlb_gru_zero_asid;
+	atomic_long_unchecked_t vdata_alloc;
+	atomic_long_unchecked_t vdata_free;
+	atomic_long_unchecked_t gts_alloc;
+	atomic_long_unchecked_t gts_free;
+	atomic_long_unchecked_t gms_alloc;
+	atomic_long_unchecked_t gms_free;
+	atomic_long_unchecked_t gts_double_allocate;
+	atomic_long_unchecked_t assign_context;
+	atomic_long_unchecked_t assign_context_failed;
+	atomic_long_unchecked_t free_context;
+	atomic_long_unchecked_t load_user_context;
+	atomic_long_unchecked_t load_kernel_context;
+	atomic_long_unchecked_t lock_kernel_context;
+	atomic_long_unchecked_t unlock_kernel_context;
+	atomic_long_unchecked_t steal_user_context;
+	atomic_long_unchecked_t steal_kernel_context;
+	atomic_long_unchecked_t steal_context_failed;
+	atomic_long_unchecked_t nopfn;
+	atomic_long_unchecked_t asid_new;
+	atomic_long_unchecked_t asid_next;
+	atomic_long_unchecked_t asid_wrap;
+	atomic_long_unchecked_t asid_reuse;
+	atomic_long_unchecked_t intr;
+	atomic_long_unchecked_t intr_cbr;
+	atomic_long_unchecked_t intr_tfh;
+	atomic_long_unchecked_t intr_spurious;
+	atomic_long_unchecked_t intr_mm_lock_failed;
+	atomic_long_unchecked_t call_os;
+	atomic_long_unchecked_t call_os_wait_queue;
+	atomic_long_unchecked_t user_flush_tlb;
+	atomic_long_unchecked_t user_unload_context;
+	atomic_long_unchecked_t user_exception;
+	atomic_long_unchecked_t set_context_option;
+	atomic_long_unchecked_t check_context_retarget_intr;
+	atomic_long_unchecked_t check_context_unload;
+	atomic_long_unchecked_t tlb_dropin;
+	atomic_long_unchecked_t tlb_preload_page;
+	atomic_long_unchecked_t tlb_dropin_fail_no_asid;
+	atomic_long_unchecked_t tlb_dropin_fail_upm;
+	atomic_long_unchecked_t tlb_dropin_fail_invalid;
+	atomic_long_unchecked_t tlb_dropin_fail_range_active;
+	atomic_long_unchecked_t tlb_dropin_fail_idle;
+	atomic_long_unchecked_t tlb_dropin_fail_fmm;
+	atomic_long_unchecked_t tlb_dropin_fail_no_exception;
+	atomic_long_unchecked_t tfh_stale_on_fault;
+	atomic_long_unchecked_t mmu_invalidate_range;
+	atomic_long_unchecked_t mmu_invalidate_page;
+	atomic_long_unchecked_t flush_tlb;
+	atomic_long_unchecked_t flush_tlb_gru;
+	atomic_long_unchecked_t flush_tlb_gru_tgh;
+	atomic_long_unchecked_t flush_tlb_gru_zero_asid;
 
-	atomic_long_t copy_gpa;
-	atomic_long_t read_gpa;
+	atomic_long_unchecked_t copy_gpa;
+	atomic_long_unchecked_t read_gpa;
 
-	atomic_long_t mesq_receive;
-	atomic_long_t mesq_receive_none;
-	atomic_long_t mesq_send;
-	atomic_long_t mesq_send_failed;
-	atomic_long_t mesq_noop;
-	atomic_long_t mesq_send_unexpected_error;
-	atomic_long_t mesq_send_lb_overflow;
-	atomic_long_t mesq_send_qlimit_reached;
-	atomic_long_t mesq_send_amo_nacked;
-	atomic_long_t mesq_send_put_nacked;
-	atomic_long_t mesq_page_overflow;
-	atomic_long_t mesq_qf_locked;
-	atomic_long_t mesq_qf_noop_not_full;
-	atomic_long_t mesq_qf_switch_head_failed;
-	atomic_long_t mesq_qf_unexpected_error;
-	atomic_long_t mesq_noop_unexpected_error;
-	atomic_long_t mesq_noop_lb_overflow;
-	atomic_long_t mesq_noop_qlimit_reached;
-	atomic_long_t mesq_noop_amo_nacked;
-	atomic_long_t mesq_noop_put_nacked;
-	atomic_long_t mesq_noop_page_overflow;
+	atomic_long_unchecked_t mesq_receive;
+	atomic_long_unchecked_t mesq_receive_none;
+	atomic_long_unchecked_t mesq_send;
+	atomic_long_unchecked_t mesq_send_failed;
+	atomic_long_unchecked_t mesq_noop;
+	atomic_long_unchecked_t mesq_send_unexpected_error;
+	atomic_long_unchecked_t mesq_send_lb_overflow;
+	atomic_long_unchecked_t mesq_send_qlimit_reached;
+	atomic_long_unchecked_t mesq_send_amo_nacked;
+	atomic_long_unchecked_t mesq_send_put_nacked;
+	atomic_long_unchecked_t mesq_page_overflow;
+	atomic_long_unchecked_t mesq_qf_locked;
+	atomic_long_unchecked_t mesq_qf_noop_not_full;
+	atomic_long_unchecked_t mesq_qf_switch_head_failed;
+	atomic_long_unchecked_t mesq_qf_unexpected_error;
+	atomic_long_unchecked_t mesq_noop_unexpected_error;
+	atomic_long_unchecked_t mesq_noop_lb_overflow;
+	atomic_long_unchecked_t mesq_noop_qlimit_reached;
+	atomic_long_unchecked_t mesq_noop_amo_nacked;
+	atomic_long_unchecked_t mesq_noop_put_nacked;
+	atomic_long_unchecked_t mesq_noop_page_overflow;
 
 };
 
@@ -251,8 +251,8 @@ enum mcs_op {cchop_allocate, cchop_start, cchop_interrupt, cchop_interrupt_sync,
 	tghop_invalidate, mcsop_last};
 
 struct mcs_op_statistic {
-	atomic_long_t	count;
-	atomic_long_t	total;
+	atomic_long_unchecked_t	count;
+	atomic_long_unchecked_t	total;
 	unsigned long	max;
 };
 
@@ -275,7 +275,7 @@ extern struct mcs_op_statistic mcs_op_statistics[mcsop_last];
 
 #define STAT(id)	do {						\
 				if (gru_options & OPT_STATS)		\
-					atomic_long_inc(&gru_stats.id);	\
+					atomic_long_inc_unchecked(&gru_stats.id);	\
 			} while (0)
 
 #ifdef CONFIG_SGI_GRU_DEBUG
diff --git a/drivers/misc/sgi-xp/xp.h b/drivers/misc/sgi-xp/xp.h
index c862cd4..0d176fe 100644
--- a/drivers/misc/sgi-xp/xp.h
+++ b/drivers/misc/sgi-xp/xp.h
@@ -288,7 +288,7 @@ struct xpc_interface {
 					xpc_notify_func, void *);
 	void (*received) (short, int, void *);
 	enum xp_retval (*partid_to_nasids) (short, void *);
-};
+} __no_const;
 
 extern struct xpc_interface xpc_interface;
 
diff --git a/drivers/misc/sgi-xp/xp_main.c b/drivers/misc/sgi-xp/xp_main.c
index 01be66d..4a305b4 100644
--- a/drivers/misc/sgi-xp/xp_main.c
+++ b/drivers/misc/sgi-xp/xp_main.c
@@ -71,20 +71,42 @@ EXPORT_SYMBOL_GPL(xpc_registrations);
 /*
  * Initialize the XPC interface to indicate that XPC isn't loaded.
  */
-static enum xp_retval
-xpc_notloaded(void)
+static void xpc_notloaded_connect(int ch_number)
+{
+}
+
+static void xpc_notloaded_disconnect(int ch_number)
+{
+}
+
+static enum xp_retval xpc_notloaded_send(short partid, int ch_number, u32 flags, void *payload,
+					 u16 payload_size)
+{
+	return xpNotLoaded;
+}
+
+static enum xp_retval xpc_notloaded_send_notify(short partid, int ch_number, u32 flags, void *payload,
+						u16 payload_size, xpc_notify_func func, void *key)
+{
+	return xpNotLoaded;
+}
+
+static void xpc_notloaded_received(short partid, int ch_number, void *payload)
+{
+}
+
+static enum xp_retval xpc_notloaded_partid_to_nasids(short partid, void *nasid_mask)
 {
 	return xpNotLoaded;
 }
 
 struct xpc_interface xpc_interface = {
-	(void (*)(int))xpc_notloaded,
-	(void (*)(int))xpc_notloaded,
-	(enum xp_retval(*)(short, int, u32, void *, u16))xpc_notloaded,
-	(enum xp_retval(*)(short, int, u32, void *, u16, xpc_notify_func,
-			   void *))xpc_notloaded,
-	(void (*)(short, int, void *))xpc_notloaded,
-	(enum xp_retval(*)(short, void *))xpc_notloaded
+	.connect = xpc_notloaded_connect,
+	.disconnect = xpc_notloaded_disconnect,
+	.send = xpc_notloaded_send,
+	.send_notify = xpc_notloaded_send_notify,
+	.received = xpc_notloaded_received,
+	.partid_to_nasids = xpc_notloaded_partid_to_nasids
 };
 EXPORT_SYMBOL_GPL(xpc_interface);
 
@@ -115,17 +137,12 @@ EXPORT_SYMBOL_GPL(xpc_set_interface);
 void
 xpc_clear_interface(void)
 {
-	xpc_interface.connect = (void (*)(int))xpc_notloaded;
-	xpc_interface.disconnect = (void (*)(int))xpc_notloaded;
-	xpc_interface.send = (enum xp_retval(*)(short, int, u32, void *, u16))
-	    xpc_notloaded;
-	xpc_interface.send_notify = (enum xp_retval(*)(short, int, u32, void *,
-						       u16, xpc_notify_func,
-						       void *))xpc_notloaded;
-	xpc_interface.received = (void (*)(short, int, void *))
-	    xpc_notloaded;
-	xpc_interface.partid_to_nasids = (enum xp_retval(*)(short, void *))
-	    xpc_notloaded;
+	xpc_interface.connect = xpc_notloaded_connect;
+	xpc_interface.disconnect = xpc_notloaded_disconnect;
+	xpc_interface.send = xpc_notloaded_send;
+	xpc_interface.send_notify = xpc_notloaded_send_notify;
+	xpc_interface.received = xpc_notloaded_received;
+	xpc_interface.partid_to_nasids = xpc_notloaded_partid_to_nasids;
 }
 EXPORT_SYMBOL_GPL(xpc_clear_interface);
 
diff --git a/drivers/misc/sgi-xp/xpc.h b/drivers/misc/sgi-xp/xpc.h
index b94d5f7..7f494c5 100644
--- a/drivers/misc/sgi-xp/xpc.h
+++ b/drivers/misc/sgi-xp/xpc.h
@@ -835,6 +835,7 @@ struct xpc_arch_operations {
 	void (*received_payload) (struct xpc_channel *, void *);
 	void (*notify_senders_of_disconnect) (struct xpc_channel *);
 };
+typedef struct xpc_arch_operations __no_const xpc_arch_operations_no_const;
 
 /* struct xpc_partition act_state values (for XPC HB) */
 
@@ -876,7 +877,7 @@ extern struct xpc_registration xpc_registrations[];
 /* found in xpc_main.c */
 extern struct device *xpc_part;
 extern struct device *xpc_chan;
-extern struct xpc_arch_operations xpc_arch_ops;
+extern xpc_arch_operations_no_const xpc_arch_ops;
 extern int xpc_disengage_timelimit;
 extern int xpc_disengage_timedout;
 extern int xpc_activate_IRQ_rcvd;
diff --git a/drivers/misc/sgi-xp/xpc_main.c b/drivers/misc/sgi-xp/xpc_main.c
index 7f32712..8539ab2 100644
--- a/drivers/misc/sgi-xp/xpc_main.c
+++ b/drivers/misc/sgi-xp/xpc_main.c
@@ -166,7 +166,7 @@ static struct notifier_block xpc_die_notifier = {
 	.notifier_call = xpc_system_die,
 };
 
-struct xpc_arch_operations xpc_arch_ops;
+xpc_arch_operations_no_const xpc_arch_ops;
 
 /*
  * Timer function to enforce the timelimit on the partition disengage.
diff --git a/drivers/misc/sgi-xp/xpnet.c b/drivers/misc/sgi-xp/xpnet.c
index 557f978..c8ce9fb 100644
--- a/drivers/misc/sgi-xp/xpnet.c
+++ b/drivers/misc/sgi-xp/xpnet.c
@@ -421,7 +421,7 @@ xpnet_send(struct sk_buff *skb, struct xpnet_pending_msg *queued_msg,
  * destination partid.  If the destination partid octets are 0xffff,
  * this packet is to be broadcast to all connected partitions.
  */
-static int
+static netdev_tx_t
 xpnet_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct xpnet_pending_msg *queued_msg;
diff --git a/drivers/misc/ti-st/st_kim.c b/drivers/misc/ti-st/st_kim.c
index 71b6455..9cc7886 100644
--- a/drivers/misc/ti-st/st_kim.c
+++ b/drivers/misc/ti-st/st_kim.c
@@ -582,9 +582,10 @@ static int show_list(struct seq_file *s, void *unused)
 	return 0;
 }
 
-static ssize_t show_install(struct device *dev,
-		struct device_attribute *attr, char *buf)
+static ssize_t show_install(struct kobject *_dev,
+		struct kobj_attribute *attr, char *buf)
 {
+	struct device *dev = (struct device *)_dev;
 	struct kim_data_s *kim_data = dev_get_drvdata(dev);
 	return sprintf(buf, "%d\n", kim_data->ldisc_install);
 }
@@ -611,47 +612,50 @@ static ssize_t store_baud_rate(struct device *dev,
 }
 #endif	/* if DEBUG */
 
-static ssize_t show_dev_name(struct device *dev,
-		struct device_attribute *attr, char *buf)
+static ssize_t show_dev_name(struct kobject *_dev,
+		struct kobj_attribute *attr, char *buf)
 {
+	struct device *dev = (struct device *)_dev;
 	struct kim_data_s *kim_data = dev_get_drvdata(dev);
 	return sprintf(buf, "%s\n", kim_data->dev_name);
 }
 
-static ssize_t show_baud_rate(struct device *dev,
-		struct device_attribute *attr, char *buf)
+static ssize_t show_baud_rate(struct kobject *_dev,
+		struct kobj_attribute *attr, char *buf)
 {
+	struct device *dev = (struct device *)_dev;
 	struct kim_data_s *kim_data = dev_get_drvdata(dev);
 	return sprintf(buf, "%d\n", kim_data->baud_rate);
 }
 
-static ssize_t show_flow_cntrl(struct device *dev,
-		struct device_attribute *attr, char *buf)
+static ssize_t show_flow_cntrl(struct kobject *_dev,
+		struct kobj_attribute *attr, char *buf)
 {
+	struct device *dev = (struct device *)_dev;
 	struct kim_data_s *kim_data = dev_get_drvdata(dev);
 	return sprintf(buf, "%d\n", kim_data->flow_cntrl);
 }
 
 /* structures specific for sysfs entries */
 static struct kobj_attribute ldisc_install =
-__ATTR(install, 0444, (void *)show_install, NULL);
+__ATTR(install, 0444, show_install, NULL);
 
 static struct kobj_attribute uart_dev_name =
 #ifdef DEBUG	/* TODO: move this to debug-fs if possible */
-__ATTR(dev_name, 0644, (void *)show_dev_name, (void *)store_dev_name);
+__ATTR(dev_name, 0644, show_dev_name, store_dev_name);
 #else
-__ATTR(dev_name, 0444, (void *)show_dev_name, NULL);
+__ATTR(dev_name, 0444, show_dev_name, NULL);
 #endif
 
 static struct kobj_attribute uart_baud_rate =
 #ifdef DEBUG	/* TODO: move to debugfs */
-__ATTR(baud_rate, 0644, (void *)show_baud_rate, (void *)store_baud_rate);
+__ATTR(baud_rate, 0644, show_baud_rate, store_baud_rate);
 #else
-__ATTR(baud_rate, 0444, (void *)show_baud_rate, NULL);
+__ATTR(baud_rate, 0444, show_baud_rate, NULL);
 #endif
 
 static struct kobj_attribute uart_flow_cntrl =
-__ATTR(flow_cntrl, 0444, (void *)show_flow_cntrl, NULL);
+__ATTR(flow_cntrl, 0444, show_flow_cntrl, NULL);
 
 static struct attribute *uim_attrs[] = {
 	&ldisc_install.attr,
diff --git a/drivers/mmc/card/mmc_test.c b/drivers/mmc/card/mmc_test.c
index c032eef..16a2a74 100644
--- a/drivers/mmc/card/mmc_test.c
+++ b/drivers/mmc/card/mmc_test.c
@@ -2076,8 +2076,8 @@ static int mmc_test_rw_multiple_size(struct mmc_test_card *test,
 {
 	int ret = 0;
 	int i;
-	void *pre_req = test->card->host->ops->pre_req;
-	void *post_req = test->card->host->ops->post_req;
+	void (*pre_req)(struct mmc_host *, struct mmc_request *, bool) = test->card->host->ops->pre_req;
+	void (*post_req)(struct mmc_host *, struct mmc_request *, int) = test->card->host->ops->post_req;
 
 	if (rw->do_nonblock_req &&
 	    ((!pre_req && post_req) || (pre_req && !post_req))) {
diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h
index 68d5da2..7cf7308 100644
--- a/drivers/mmc/host/dw_mmc.h
+++ b/drivers/mmc/host/dw_mmc.h
@@ -297,5 +297,5 @@ struct dw_mci_drv_data {
 						struct mmc_ios *ios);
 	int		(*switch_voltage)(struct mmc_host *mmc,
 					  struct mmc_ios *ios);
-};
+} __do_const;
 #endif /* _DW_MMC_H_ */
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 2e6c968..0a99c02 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -1633,7 +1633,9 @@ static int mmci_probe(struct amba_device *dev,
 	mmc->caps |= MMC_CAP_CMD23;
 
 	if (variant->busy_detect) {
-		mmci_ops.card_busy = mmci_card_busy;
+		pax_open_kernel();
+		const_cast(mmci_ops.card_busy) = mmci_card_busy;
+		pax_close_kernel();
 		mmci_write_datactrlreg(host, MCI_ST_DPSM_BUSYMODE);
 		mmc->caps |= MMC_CAP_WAIT_WHILE_BUSY;
 		mmc->max_busy_timeout = 0;
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index f9ac3bb..4709b44 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -2091,7 +2091,9 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
 
 	if (host->pdata->controller_flags & OMAP_HSMMC_BROKEN_MULTIBLOCK_READ) {
 		dev_info(&pdev->dev, "multiblock reads disabled due to 35xx erratum 2.1.1.128; MMC read performance may suffer\n");
-		omap_hsmmc_ops.multi_io_quirk = omap_hsmmc_multi_io_quirk;
+		pax_open_kernel();
+		const_cast(omap_hsmmc_ops.multi_io_quirk) = omap_hsmmc_multi_io_quirk;
+		pax_close_kernel();
 	}
 
 	device_init_wakeup(&pdev->dev, true);
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 2d300d8..35cc03f 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -1190,9 +1190,12 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
 			host->ioaddr + 0x6c);
 	}
 
-	if (imx_data->socdata->flags & ESDHC_FLAG_MAN_TUNING)
-		sdhci_esdhc_ops.platform_execute_tuning =
+	if (imx_data->socdata->flags & ESDHC_FLAG_MAN_TUNING) {
+		pax_open_kernel();
+		const_cast(sdhci_esdhc_ops.platform_execute_tuning) =
 					esdhc_executing_tuning;
+		pax_close_kernel();
+	}
 
 	if (imx_data->socdata->flags & ESDHC_FLAG_STD_TUNING)
 		writel(readl(host->ioaddr + ESDHC_TUNING_CTRL) |
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index 70c724b..0c24beb 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -598,9 +598,11 @@ static int sdhci_s3c_probe(struct platform_device *pdev)
 	 * we can use overriding functions instead of default.
 	 */
 	if (sc->no_divider) {
-		sdhci_s3c_ops.set_clock = sdhci_cmu_set_clock;
-		sdhci_s3c_ops.get_min_clock = sdhci_cmu_get_min_clock;
-		sdhci_s3c_ops.get_max_clock = sdhci_cmu_get_max_clock;
+		pax_open_kernel();
+		const_cast(sdhci_s3c_ops.set_clock) = sdhci_cmu_set_clock;
+		const_cast(sdhci_s3c_ops.get_min_clock) = sdhci_cmu_get_min_clock;
+		const_cast(sdhci_s3c_ops.get_max_clock) = sdhci_cmu_get_max_clock;
+		pax_close_kernel();
 	}
 
 	/* It supports additional host capabilities if needed */
diff --git a/drivers/mtd/chips/cfi_cmdset_0020.c b/drivers/mtd/chips/cfi_cmdset_0020.c
index 9a1a6ff..b8f1a57 100644
--- a/drivers/mtd/chips/cfi_cmdset_0020.c
+++ b/drivers/mtd/chips/cfi_cmdset_0020.c
@@ -666,7 +666,7 @@ cfi_staa_writev(struct mtd_info *mtd, const struct kvec *vecs,
 	size_t	 totlen = 0, thislen;
 	int	 ret = 0;
 	size_t	 buflen = 0;
-	static char *buffer;
+	char *buffer;
 
 	if (!ECCBUF_SIZE) {
 		/* We should fall back to a general writev implementation.
diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c
index 7c887f1..62fd690 100644
--- a/drivers/mtd/devices/block2mtd.c
+++ b/drivers/mtd/devices/block2mtd.c
@@ -431,7 +431,7 @@ static int block2mtd_setup2(const char *val)
 }
 
 
-static int block2mtd_setup(const char *val, struct kernel_param *kp)
+static int block2mtd_setup(const char *val, const struct kernel_param *kp)
 {
 #ifdef MODULE
 	return block2mtd_setup2(val);
diff --git a/drivers/mtd/devices/phram.c b/drivers/mtd/devices/phram.c
index 8b66e52..7287696 100644
--- a/drivers/mtd/devices/phram.c
+++ b/drivers/mtd/devices/phram.c
@@ -266,7 +266,7 @@ static int phram_setup(const char *val)
 	return ret;
 }
 
-static int phram_param_call(const char *val, struct kernel_param *kp)
+static int phram_param_call(const char *val, const struct kernel_param *kp)
 {
 #ifdef MODULE
 	return phram_setup(val);
diff --git a/drivers/mtd/maps/gpio-addr-flash.c b/drivers/mtd/maps/gpio-addr-flash.c
index 385305e..8051e87 100644
--- a/drivers/mtd/maps/gpio-addr-flash.c
+++ b/drivers/mtd/maps/gpio-addr-flash.c
@@ -128,7 +128,7 @@ static void gf_copy_from(struct map_info *map, void *to, unsigned long from, ssi
  *	@map: MTD map state
  *	@ofs: desired offset to write
  */
-static void gf_write(struct map_info *map, map_word d1, unsigned long ofs)
+static void gf_write(struct map_info *map, const map_word d1, unsigned long ofs)
 {
 	struct async_state *state = gf_map_info_to_state(map);
 	uint16_t d;
diff --git a/drivers/mtd/maps/latch-addr-flash.c b/drivers/mtd/maps/latch-addr-flash.c
index 6dc97aa..c251b90 100644
--- a/drivers/mtd/maps/latch-addr-flash.c
+++ b/drivers/mtd/maps/latch-addr-flash.c
@@ -52,7 +52,7 @@ static map_word lf_read(struct map_info *map, unsigned long ofs)
 	return datum;
 }
 
-static void lf_write(struct map_info *map, map_word datum, unsigned long ofs)
+static void lf_write(struct map_info *map, const map_word datum, unsigned long ofs)
 {
 	struct latch_addr_flash_info *info;
 
diff --git a/drivers/mtd/maps/pci.c b/drivers/mtd/maps/pci.c
index eb0242e..1a4c5b9 100644
--- a/drivers/mtd/maps/pci.c
+++ b/drivers/mtd/maps/pci.c
@@ -59,13 +59,13 @@ static void mtd_pci_copyfrom(struct map_info *_map, void *to, unsigned long from
 	memcpy_fromio(to, map->base + map->translate(map, from), len);
 }
 
-static void mtd_pci_write8(struct map_info *_map, map_word val, unsigned long ofs)
+static void mtd_pci_write8(struct map_info *_map, const map_word val, unsigned long ofs)
 {
 	struct map_pci_info *map = (struct map_pci_info *)_map;
 	writeb(val.x[0], map->base + map->translate(map, ofs));
 }
 
-static void mtd_pci_write32(struct map_info *_map, map_word val, unsigned long ofs)
+static void mtd_pci_write32(struct map_info *_map, const map_word val, unsigned long ofs)
 {
 	struct map_pci_info *map = (struct map_pci_info *)_map;
 	writel(val.x[0], map->base + map->translate(map, ofs));
diff --git a/drivers/mtd/maps/pcmciamtd.c b/drivers/mtd/maps/pcmciamtd.c
index 70bb403..3ae94c6 100644
--- a/drivers/mtd/maps/pcmciamtd.c
+++ b/drivers/mtd/maps/pcmciamtd.c
@@ -161,7 +161,7 @@ static void pcmcia_copy_from_remap(struct map_info *map, void *to, unsigned long
 }
 
 
-static void pcmcia_write8_remap(struct map_info *map, map_word d, unsigned long adr)
+static void pcmcia_write8_remap(struct map_info *map, const map_word d, unsigned long adr)
 {
 	void __iomem *addr = remap_window(map, adr);
 
@@ -173,7 +173,7 @@ static void pcmcia_write8_remap(struct map_info *map, map_word d, unsigned long
 }
 
 
-static void pcmcia_write16_remap(struct map_info *map, map_word d, unsigned long adr)
+static void pcmcia_write16_remap(struct map_info *map, const map_word d, unsigned long adr)
 {
 	void __iomem *addr = remap_window(map, adr);
 	if(!addr)
@@ -256,7 +256,7 @@ static void pcmcia_copy_from(struct map_info *map, void *to, unsigned long from,
 }
 
 
-static void pcmcia_write8(struct map_info *map, map_word d, unsigned long adr)
+static void pcmcia_write8(struct map_info *map, const map_word d, unsigned long adr)
 {
 	void __iomem *win_base = (void __iomem *)map->map_priv_2;
 
@@ -269,7 +269,7 @@ static void pcmcia_write8(struct map_info *map, map_word d, unsigned long adr)
 }
 
 
-static void pcmcia_write16(struct map_info *map, map_word d, unsigned long adr)
+static void pcmcia_write16(struct map_info *map, const map_word d, unsigned long adr)
 {
 	void __iomem *win_base = (void __iomem *)map->map_priv_2;
 
diff --git a/drivers/mtd/maps/sbc_gxx.c b/drivers/mtd/maps/sbc_gxx.c
index 556a2df..e771329 100644
--- a/drivers/mtd/maps/sbc_gxx.c
+++ b/drivers/mtd/maps/sbc_gxx.c
@@ -138,7 +138,7 @@ static void sbc_gxx_copy_from(struct map_info *map, void *to, unsigned long from
 	}
 }
 
-static void sbc_gxx_write8(struct map_info *map, map_word d, unsigned long adr)
+static void sbc_gxx_write8(struct map_info *map, const map_word d, unsigned long adr)
 {
 	spin_lock(&sbc_gxx_spin);
 	sbc_gxx_page(map, adr);
diff --git a/drivers/mtd/nand/brcmnand/bcm63138_nand.c b/drivers/mtd/nand/brcmnand/bcm63138_nand.c
index 59444b3..91a9451 100644
--- a/drivers/mtd/nand/brcmnand/bcm63138_nand.c
+++ b/drivers/mtd/nand/brcmnand/bcm63138_nand.c
@@ -81,8 +81,10 @@ static int bcm63138_nand_probe(struct platform_device *pdev)
 	if (IS_ERR(priv->base))
 		return PTR_ERR(priv->base);
 
-	soc->ctlrdy_ack = bcm63138_nand_intc_ack;
-	soc->ctlrdy_set_enabled = bcm63138_nand_intc_set;
+	pax_open_kernel();
+	const_cast(soc->ctlrdy_ack) = bcm63138_nand_intc_ack;
+	const_cast(soc->ctlrdy_set_enabled) = bcm63138_nand_intc_set;
+	pax_close_kernel();
 
 	return brcmnand_probe(pdev, soc);
 }
diff --git a/drivers/mtd/nand/brcmnand/brcmnand.h b/drivers/mtd/nand/brcmnand/brcmnand.h
index ef5eabb..2b61d03 100644
--- a/drivers/mtd/nand/brcmnand/brcmnand.h
+++ b/drivers/mtd/nand/brcmnand/brcmnand.h
@@ -24,7 +24,7 @@ struct brcmnand_soc {
 	bool (*ctlrdy_ack)(struct brcmnand_soc *soc);
 	void (*ctlrdy_set_enabled)(struct brcmnand_soc *soc, bool en);
 	void (*prepare_data_bus)(struct brcmnand_soc *soc, bool prepare);
-};
+} __no_const;
 
 static inline void brcmnand_soc_data_bus_prepare(struct brcmnand_soc *soc)
 {
diff --git a/drivers/mtd/nand/brcmnand/iproc_nand.c b/drivers/mtd/nand/brcmnand/iproc_nand.c
index 585596c..41d7983 100644
--- a/drivers/mtd/nand/brcmnand/iproc_nand.c
+++ b/drivers/mtd/nand/brcmnand/iproc_nand.c
@@ -120,9 +120,11 @@ static int iproc_nand_probe(struct platform_device *pdev)
 	if (IS_ERR(priv->ext_base))
 		return PTR_ERR(priv->ext_base);
 
-	soc->ctlrdy_ack = iproc_nand_intc_ack;
-	soc->ctlrdy_set_enabled = iproc_nand_intc_set;
-	soc->prepare_data_bus = iproc_nand_apb_access;
+	pax_open_kernel();
+	const_cast(soc->ctlrdy_ack) = iproc_nand_intc_ack;
+	const_cast(soc->ctlrdy_set_enabled) = iproc_nand_intc_set;
+	const_cast(soc->prepare_data_bus) = iproc_nand_apb_access;
+	pax_close_kernel();
 
 	return brcmnand_probe(pdev, soc);
 }
diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c
index e553aff..62fc6b8 100644
--- a/drivers/mtd/nand/cafe_nand.c
+++ b/drivers/mtd/nand/cafe_nand.c
@@ -345,7 +345,17 @@ static irqreturn_t cafe_nand_interrupt(int irq, void *id)
 	return IRQ_HANDLED;
 }
 
-static void cafe_nand_bug(struct mtd_info *mtd)
+static void cafe_nand_bug_hwctl(struct mtd_info *mtd, int mode)
+{
+	BUG();
+}
+
+static int cafe_nand_bug_calculate(struct mtd_info *mtd, const uint8_t *dat, uint8_t *ecc_code)
+{
+	BUG();
+}
+
+static int cafe_nand_bug_correct(struct mtd_info *mtd, uint8_t *dat, uint8_t *read_ecc, uint8_t *calc_ecc)
 {
 	BUG();
 }
@@ -760,9 +770,9 @@ static int cafe_nand_probe(struct pci_dev *pdev,
 	cafe->nand.ecc.size = mtd->writesize;
 	cafe->nand.ecc.bytes = 14;
 	cafe->nand.ecc.strength = 4;
-	cafe->nand.ecc.hwctl  = (void *)cafe_nand_bug;
-	cafe->nand.ecc.calculate = (void *)cafe_nand_bug;
-	cafe->nand.ecc.correct  = (void *)cafe_nand_bug;
+	cafe->nand.ecc.hwctl  = cafe_nand_bug_hwctl;
+	cafe->nand.ecc.calculate = cafe_nand_bug_calculate;
+	cafe->nand.ecc.correct  = cafe_nand_bug_correct;
 	cafe->nand.ecc.write_page = cafe_nand_write_page_lowlevel;
 	cafe->nand.ecc.write_oob = cafe_nand_write_oob;
 	cafe->nand.ecc.read_page = cafe_nand_read_page;
diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c
index 30bf5f6..9bb67d1 100644
--- a/drivers/mtd/nand/denali.c
+++ b/drivers/mtd/nand/denali.c
@@ -24,6 +24,7 @@
 #include <linux/slab.h>
 #include <linux/mtd/mtd.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 
 #include "denali.h"
 
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index 8122c69..96522f2 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -388,7 +388,7 @@ void prepare_data_dma(struct gpmi_nand_data *this, enum dma_data_direction dr)
 
 	/* first try to map the upper buffer directly */
 	if (virt_addr_valid(this->upper_buf) &&
-		!object_is_on_stack(this->upper_buf)) {
+		!object_starts_on_stack(this->upper_buf)) {
 		sg_init_one(sgl, this->upper_buf, this->upper_len);
 		ret = dma_map_sg(this->dev, sgl, 1, dr);
 		if (ret == 0)
diff --git a/drivers/mtd/nftlmount.c b/drivers/mtd/nftlmount.c
index a5dfbfb..8042ab4 100644
--- a/drivers/mtd/nftlmount.c
+++ b/drivers/mtd/nftlmount.c
@@ -24,6 +24,7 @@
 #include <asm/errno.h>
 #include <linux/delay.h>
 #include <linux/slab.h>
+#include <linux/sched.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>
 #include <linux/mtd/nftl.h>
diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c
index b096f8b..727cc94 100644
--- a/drivers/mtd/sm_ftl.c
+++ b/drivers/mtd/sm_ftl.c
@@ -56,7 +56,7 @@ static ssize_t sm_attr_show(struct device *dev, struct device_attribute *attr,
 #define SM_CIS_VENDOR_OFFSET 0x59
 static struct attribute_group *sm_create_sysfs_attributes(struct sm_ftl *ftl)
 {
-	struct attribute_group *attr_group;
+	attribute_group_no_const *attr_group;
 	struct attribute **attributes;
 	struct sm_sysfs_attribute *vendor_attribute;
 	char *vendor;
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c
index 22fd19c..54e16b1 100644
--- a/drivers/mtd/ubi/build.c
+++ b/drivers/mtd/ubi/build.c
@@ -1377,7 +1377,7 @@ static int __init bytes_str_to_int(const char *str)
  * This function returns zero in case of success and a negative error code in
  * case of error.
  */
-static int __init ubi_mtd_param_parse(const char *val, struct kernel_param *kp)
+static int __init ubi_mtd_param_parse(const char *val, const struct kernel_param *kp)
 {
 	int i, len;
 	struct mtd_dev_param *p;
diff --git a/drivers/net/bonding/bond_netlink.c b/drivers/net/bonding/bond_netlink.c
index db760e8..d53ca99 100644
--- a/drivers/net/bonding/bond_netlink.c
+++ b/drivers/net/bonding/bond_netlink.c
@@ -662,7 +662,7 @@ nla_put_failure:
 	return -EMSGSIZE;
 }
 
-struct rtnl_link_ops bond_link_ops __read_mostly = {
+struct rtnl_link_ops bond_link_ops = {
 	.kind			= "bond",
 	.priv_size		= sizeof(struct bonding),
 	.setup			= bond_setup,
diff --git a/drivers/net/caif/caif_hsi.c b/drivers/net/caif/caif_hsi.c
index 615c65d..e45dc26 100644
--- a/drivers/net/caif/caif_hsi.c
+++ b/drivers/net/caif/caif_hsi.c
@@ -1011,7 +1011,7 @@ static void cfhsi_aggregation_tout(unsigned long arg)
 	cfhsi_start_tx(cfhsi);
 }
 
-static int cfhsi_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t cfhsi_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct cfhsi *cfhsi = NULL;
 	int start_xfer = 0;
@@ -1444,7 +1444,7 @@ err:
 	return -ENODEV;
 }
 
-static struct rtnl_link_ops caif_hsi_link_ops __read_mostly = {
+static struct rtnl_link_ops caif_hsi_link_ops = {
 	.kind		= "cfhsi",
 	.priv_size	= sizeof(struct cfhsi),
 	.setup		= cfhsi_setup,
diff --git a/drivers/net/caif/caif_serial.c b/drivers/net/caif/caif_serial.c
index c2dea49..4bf83b5 100644
--- a/drivers/net/caif/caif_serial.c
+++ b/drivers/net/caif/caif_serial.c
@@ -277,7 +277,7 @@ error:
 	return tty_wr;
 }
 
-static int caif_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t caif_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct ser_device *ser;
 
diff --git a/drivers/net/caif/caif_spi.c b/drivers/net/caif/caif_spi.c
index 4721948..7d77dde 100644
--- a/drivers/net/caif/caif_spi.c
+++ b/drivers/net/caif/caif_spi.c
@@ -486,7 +486,7 @@ static void cfspi_xfer_done_cb(struct cfspi_ifc *ifc)
 	complete(&cfspi->comp);
 }
 
-static int cfspi_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t cfspi_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct cfspi *cfspi = NULL;
 	unsigned long flags;
diff --git a/drivers/net/caif/caif_virtio.c b/drivers/net/caif/caif_virtio.c
index b306210..c5345de 100644
--- a/drivers/net/caif/caif_virtio.c
+++ b/drivers/net/caif/caif_virtio.c
@@ -519,7 +519,7 @@ err:
 }
 
 /* Put the CAIF packet on the virtio ring and kick the receiver */
-static int cfv_netdev_tx(struct sk_buff *skb, struct net_device *netdev)
+static netdev_tx_t cfv_netdev_tx(struct sk_buff *skb, struct net_device *netdev)
 {
 	struct cfv_info *cfv = netdev_priv(netdev);
 	struct buf_info *buf_info;
diff --git a/drivers/net/can/Kconfig b/drivers/net/can/Kconfig
index 0d40aef..e9a8d91 100644
--- a/drivers/net/can/Kconfig
+++ b/drivers/net/can/Kconfig
@@ -81,7 +81,7 @@ config CAN_BFIN
 
 config CAN_FLEXCAN
 	tristate "Support for Freescale FLEXCAN based chips"
-	depends on ARM || PPC
+	depends on (ARM && CPU_LITTLE_ENDIAN) || PPC
 	---help---
 	  Say Y here if you want to support for Freescale FlexCAN.
 
diff --git a/drivers/net/can/bfin_can.c b/drivers/net/can/bfin_can.c
index 1deb8ff..4e2b0c1 100644
--- a/drivers/net/can/bfin_can.c
+++ b/drivers/net/can/bfin_can.c
@@ -338,7 +338,7 @@ static int bfin_can_get_berr_counter(const struct net_device *dev,
 	return 0;
 }
 
-static int bfin_can_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t bfin_can_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct bfin_can_priv *priv = netdev_priv(dev);
 	struct bfin_can_regs __iomem *reg = priv->membase;
diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c
index 910c12e..b9c005d 100644
--- a/drivers/net/can/dev.c
+++ b/drivers/net/can/dev.c
@@ -1008,7 +1008,7 @@ static int can_newlink(struct net *src_net, struct net_device *dev,
 	return -EOPNOTSUPP;
 }
 
-static struct rtnl_link_ops can_link_ops __read_mostly = {
+static struct rtnl_link_ops can_link_ops = {
 	.kind		= "can",
 	.maxtype	= IFLA_CAN_MAX,
 	.policy		= can_policy,
diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index 41c0fc9..517f7e3 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -465,7 +465,7 @@ static int flexcan_get_berr_counter(const struct net_device *dev,
 	return err;
 }
 
-static int flexcan_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t flexcan_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	const struct flexcan_priv *priv = netdev_priv(dev);
 	struct flexcan_regs __iomem *regs = priv->regs;
diff --git a/drivers/net/can/janz-ican3.c b/drivers/net/can/janz-ican3.c
index 5d04f54..9586a90 100644
--- a/drivers/net/can/janz-ican3.c
+++ b/drivers/net/can/janz-ican3.c
@@ -1598,7 +1598,7 @@ static int ican3_stop(struct net_device *ndev)
 	return 0;
 }
 
-static int ican3_xmit(struct sk_buff *skb, struct net_device *ndev)
+static netdev_tx_t ican3_xmit(struct sk_buff *skb, struct net_device *ndev)
 {
 	struct ican3_dev *mod = netdev_priv(ndev);
 	struct can_frame *cf = (struct can_frame *)skb->data;
diff --git a/drivers/net/can/led.c b/drivers/net/can/led.c
index c1b6676..50a8a51 100644
--- a/drivers/net/can/led.c
+++ b/drivers/net/can/led.c
@@ -128,7 +128,7 @@ static int can_led_notifier(struct notifier_block *nb, unsigned long msg,
 }
 
 /* notifier block for netdevice event */
-static struct notifier_block can_netdev_notifier __read_mostly = {
+static struct notifier_block can_netdev_notifier = {
 	.notifier_call = can_led_notifier,
 };
 
diff --git a/drivers/net/can/sun4i_can.c b/drivers/net/can/sun4i_can.c
index 68ef0a4..9e4938b 100644
--- a/drivers/net/can/sun4i_can.c
+++ b/drivers/net/can/sun4i_can.c
@@ -409,7 +409,7 @@ static int sun4ican_set_mode(struct net_device *dev, enum can_mode mode)
  * xx xx xx xx         ff         ll 00 11 22 33 44 55 66 77
  * [ can_id ] [flags] [len] [can data (up to 8 bytes]
  */
-static int sun4ican_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t sun4ican_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct sun4ican_priv *priv = netdev_priv(dev);
 	struct can_frame *cf = (struct can_frame *)skb->data;
diff --git a/drivers/net/can/vcan.c b/drivers/net/can/vcan.c
index 674f367..ec3a31f 100644
--- a/drivers/net/can/vcan.c
+++ b/drivers/net/can/vcan.c
@@ -163,7 +163,7 @@ static void vcan_setup(struct net_device *dev)
 	dev->destructor		= free_netdev;
 }
 
-static struct rtnl_link_ops vcan_link_ops __read_mostly = {
+static struct rtnl_link_ops vcan_link_ops = {
 	.kind	= "vcan",
 	.setup	= vcan_setup,
 };
diff --git a/drivers/net/can/xilinx_can.c b/drivers/net/can/xilinx_can.c
index c71a035..08768ce 100644
--- a/drivers/net/can/xilinx_can.c
+++ b/drivers/net/can/xilinx_can.c
@@ -386,7 +386,7 @@ static int xcan_do_set_mode(struct net_device *ndev, enum can_mode mode)
  *
  * Return: 0 on success and failure value on error
  */
-static int xcan_start_xmit(struct sk_buff *skb, struct net_device *ndev)
+static netdev_tx_t xcan_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 {
 	struct xcan_priv *priv = netdev_priv(ndev);
 	struct net_device_stats *stats = &ndev->stats;
diff --git a/drivers/net/dummy.c b/drivers/net/dummy.c
index 69fc840..77a32fc 100644
--- a/drivers/net/dummy.c
+++ b/drivers/net/dummy.c
@@ -167,7 +167,7 @@ static int dummy_validate(struct nlattr *tb[], struct nlattr *data[])
 	return 0;
 }
 
-static struct rtnl_link_ops dummy_link_ops __read_mostly = {
+static struct rtnl_link_ops dummy_link_ops = {
 	.kind		= DRV_NAME,
 	.setup		= dummy_setup,
 	.validate	= dummy_validate,
diff --git a/drivers/net/ethernet/8390/ax88796.c b/drivers/net/ethernet/8390/ax88796.c
index c89b9aee..66151c0 100644
--- a/drivers/net/ethernet/8390/ax88796.c
+++ b/drivers/net/ethernet/8390/ax88796.c
@@ -834,7 +834,7 @@ static int ax_probe(struct platform_device *pdev)
 	struct ei_device *ei_local;
 	struct ax_device *ax;
 	struct resource *irq, *mem, *mem2;
-	unsigned long mem_size, mem2_size = 0;
+	resource_size_t mem_size, mem2_size = 0;
 	int ret = 0;
 
 	dev = ax__alloc_ei_netdev(sizeof(struct ax_device));
@@ -878,9 +878,11 @@ static int ax_probe(struct platform_device *pdev)
 	if (ax->plat->reg_offsets)
 		ei_local->reg_offset = ax->plat->reg_offsets;
 	else {
+		resource_size_t _mem_size = mem_size;
+		_mem_size /= 0x18;
 		ei_local->reg_offset = ax->reg_offsets;
 		for (ret = 0; ret < 0x18; ret++)
-			ax->reg_offsets[ret] = (mem_size / 0x18) * ret;
+			ax->reg_offsets[ret] = _mem_size * ret;
 	}
 
 	if (!request_mem_region(mem->start, mem_size, pdev->name)) {
diff --git a/drivers/net/ethernet/8390/axnet_cs.c b/drivers/net/ethernet/8390/axnet_cs.c
index ec6eac1..4426e27 100644
--- a/drivers/net/ethernet/8390/axnet_cs.c
+++ b/drivers/net/ethernet/8390/axnet_cs.c
@@ -96,7 +96,7 @@ static void get_8390_hdr(struct net_device *,
 static void block_input(struct net_device *dev, int count,
 			struct sk_buff *skb, int ring_offset);
 static void block_output(struct net_device *dev, int count,
-			 const u_char *buf, const int start_page);
+			 const u_char *buf, int start_page);
 
 static void axnet_detach(struct pcmcia_device *p_dev);
 
@@ -667,7 +667,7 @@ static void block_input(struct net_device *dev, int count,
 /*====================================================================*/
 
 static void block_output(struct net_device *dev, int count,
-			 const u_char *buf, const int start_page)
+			 const u_char *buf, int start_page)
 {
     unsigned int nic_base = dev->base_addr;
 
diff --git a/drivers/net/ethernet/8390/ne2k-pci.c b/drivers/net/ethernet/8390/ne2k-pci.c
index 57e9791..c93b6a0 100644
--- a/drivers/net/ethernet/8390/ne2k-pci.c
+++ b/drivers/net/ethernet/8390/ne2k-pci.c
@@ -172,8 +172,8 @@ static void ne2k_pci_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *
 			  int ring_page);
 static void ne2k_pci_block_input(struct net_device *dev, int count,
 			  struct sk_buff *skb, int ring_offset);
-static void ne2k_pci_block_output(struct net_device *dev, const int count,
-		const unsigned char *buf, const int start_page);
+static void ne2k_pci_block_output(struct net_device *dev, int count,
+		const unsigned char *buf, int start_page);
 static const struct ethtool_ops ne2k_pci_ethtool_ops;
 
 
@@ -563,7 +563,7 @@ static void ne2k_pci_block_input(struct net_device *dev, int count,
 }
 
 static void ne2k_pci_block_output(struct net_device *dev, int count,
-				  const unsigned char *buf, const int start_page)
+				  const unsigned char *buf, int start_page)
 {
 	long nic_base = NE_BASE;
 	unsigned long dma_start;
diff --git a/drivers/net/ethernet/8390/pcnet_cs.c b/drivers/net/ethernet/8390/pcnet_cs.c
index 2f79d29..ed5a64e 100644
--- a/drivers/net/ethernet/8390/pcnet_cs.c
+++ b/drivers/net/ethernet/8390/pcnet_cs.c
@@ -1208,7 +1208,7 @@ static void dma_block_input(struct net_device *dev, int count,
 /*====================================================================*/
 
 static void dma_block_output(struct net_device *dev, int count,
-			     const u_char *buf, const int start_page)
+			     const u_char *buf, int start_page)
 {
     unsigned int nic_base = dev->base_addr;
     struct pcnet_dev *info = PRIV(dev);
@@ -1387,7 +1387,7 @@ static void shmem_block_input(struct net_device *dev, int count,
 /*====================================================================*/
 
 static void shmem_block_output(struct net_device *dev, int count,
-			       const u_char *buf, const int start_page)
+			       const u_char *buf, int start_page)
 {
     void __iomem *shmem = ei_status.mem + (start_page << 8);
     shmem -= ei_status.tx_start_page << 8;
diff --git a/drivers/net/ethernet/adi/bfin_mac.c b/drivers/net/ethernet/adi/bfin_mac.c
index 74139cb..6c2a056 100644
--- a/drivers/net/ethernet/adi/bfin_mac.c
+++ b/drivers/net/ethernet/adi/bfin_mac.c
@@ -1123,7 +1123,7 @@ static void tx_reclaim_skb_timeout(unsigned long lp)
 	tx_reclaim_skb((struct bfin_mac_local *)lp);
 }
 
-static int bfin_mac_hard_start_xmit(struct sk_buff *skb,
+static netdev_tx_t bfin_mac_hard_start_xmit(struct sk_buff *skb,
 				struct net_device *dev)
 {
 	struct bfin_mac_local *lp = netdev_priv(dev);
diff --git a/drivers/net/ethernet/allwinner/sun4i-emac.c b/drivers/net/ethernet/allwinner/sun4i-emac.c
index 8d50314..df65782 100644
--- a/drivers/net/ethernet/allwinner/sun4i-emac.c
+++ b/drivers/net/ethernet/allwinner/sun4i-emac.c
@@ -438,7 +438,7 @@ static void emac_timeout(struct net_device *dev)
 /* Hardware start transmission.
  * Send a packet to media from the upper layer.
  */
-static int emac_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t emac_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct emac_board_info *db = netdev_priv(dev);
 	unsigned long channel;
diff --git a/drivers/net/ethernet/altera/altera_tse_main.c b/drivers/net/ethernet/altera/altera_tse_main.c
index f749e4d..23a27f1 100644
--- a/drivers/net/ethernet/altera/altera_tse_main.c
+++ b/drivers/net/ethernet/altera/altera_tse_main.c
@@ -551,7 +551,7 @@ static irqreturn_t altera_isr(int irq, void *dev_id)
  * physically contiguous fragment starting at
  * skb->data, for length of skb_headlen(skb).
  */
-static int tse_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t tse_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct altera_tse_private *priv = netdev_priv(dev);
 	unsigned int txsize = priv->tx_ring_size;
@@ -1243,7 +1243,7 @@ static int tse_shutdown(struct net_device *dev)
 	return 0;
 }
 
-static struct net_device_ops altera_tse_netdev_ops = {
+static net_device_ops_no_const altera_tse_netdev_ops __read_only = {
 	.ndo_open		= tse_open,
 	.ndo_stop		= tse_shutdown,
 	.ndo_start_xmit		= tse_start_xmit,
@@ -1480,11 +1480,13 @@ static int altera_tse_probe(struct platform_device *pdev)
 	ndev->netdev_ops = &altera_tse_netdev_ops;
 	altera_tse_set_ethtool_ops(ndev);
 
+	pax_open_kernel();
 	altera_tse_netdev_ops.ndo_set_rx_mode = tse_set_rx_mode;
 
 	if (priv->hash_filter)
 		altera_tse_netdev_ops.ndo_set_rx_mode =
 			tse_set_rx_mode_hashfilter;
+	pax_close_kernel();
 
 	/* Scatter/gather IO is not supported,
 	 * so it is turned off
diff --git a/drivers/net/ethernet/amd/7990.c b/drivers/net/ethernet/amd/7990.c
index 66d0b73c..5e0763f 100644
--- a/drivers/net/ethernet/amd/7990.c
+++ b/drivers/net/ethernet/amd/7990.c
@@ -535,7 +535,7 @@ void lance_tx_timeout(struct net_device *dev)
 }
 EXPORT_SYMBOL_GPL(lance_tx_timeout);
 
-int lance_start_xmit(struct sk_buff *skb, struct net_device *dev)
+netdev_tx_t lance_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct lance_private *lp = netdev_priv(dev);
 	volatile struct lance_init_block *ib = lp->init_block;
diff --git a/drivers/net/ethernet/amd/7990.h b/drivers/net/ethernet/amd/7990.h
index e9e0be3..1b8e3af 100644
--- a/drivers/net/ethernet/amd/7990.h
+++ b/drivers/net/ethernet/amd/7990.h
@@ -240,7 +240,7 @@ struct lance_private {
 /* Now the prototypes we export */
 int lance_open(struct net_device *dev);
 int lance_close(struct net_device *dev);
-int lance_start_xmit(struct sk_buff *skb, struct net_device *dev);
+netdev_tx_t lance_start_xmit(struct sk_buff *skb, struct net_device *dev);
 void lance_set_multicast(struct net_device *dev);
 void lance_tx_timeout(struct net_device *dev);
 #ifdef CONFIG_NET_POLL_CONTROLLER
diff --git a/drivers/net/ethernet/amd/amd8111e.c b/drivers/net/ethernet/amd/amd8111e.c
index 9496005..1fb7ac2 100644
--- a/drivers/net/ethernet/amd/amd8111e.c
+++ b/drivers/net/ethernet/amd/amd8111e.c
@@ -1690,8 +1690,9 @@ static int amd8111e_resume(struct pci_dev *pci_dev)
 	return 0;
 }
 
-static void amd8111e_config_ipg(struct net_device *dev)
+static void amd8111e_config_ipg(unsigned long _dev)
 {
+	struct net_device *dev = (struct net_device *)_dev;
 	struct amd8111e_priv *lp = netdev_priv(dev);
 	struct ipg_info *ipg_data = &lp->ipg_data;
 	void __iomem *mmio = lp->mmio;
@@ -1904,7 +1905,7 @@ static int amd8111e_probe_one(struct pci_dev *pdev,
 	if(lp->options & OPTION_DYN_IPG_ENABLE){
 		init_timer(&lp->ipg_data.ipg_timer);
 		lp->ipg_data.ipg_timer.data = (unsigned long) dev;
-		lp->ipg_data.ipg_timer.function = (void *)&amd8111e_config_ipg;
+		lp->ipg_data.ipg_timer.function = &amd8111e_config_ipg;
 		lp->ipg_data.ipg_timer.expires = jiffies +
 						 IPG_CONVERGE_JIFFIES;
 		lp->ipg_data.ipg = DEFAULT_IPG;
diff --git a/drivers/net/ethernet/amd/atarilance.c b/drivers/net/ethernet/amd/atarilance.c
index b10964e..93b7cb8 100644
--- a/drivers/net/ethernet/amd/atarilance.c
+++ b/drivers/net/ethernet/amd/atarilance.c
@@ -339,7 +339,7 @@ static unsigned long lance_probe1( struct net_device *dev, struct lance_addr
                                    *init_rec );
 static int lance_open( struct net_device *dev );
 static void lance_init_ring( struct net_device *dev );
-static int lance_start_xmit( struct sk_buff *skb, struct net_device *dev );
+static netdev_tx_t lance_start_xmit( struct sk_buff *skb, struct net_device *dev );
 static irqreturn_t lance_interrupt( int irq, void *dev_id );
 static int lance_rx( struct net_device *dev );
 static int lance_close( struct net_device *dev );
@@ -770,7 +770,7 @@ static void lance_tx_timeout (struct net_device *dev)
 
 /* XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX */
 
-static int lance_start_xmit( struct sk_buff *skb, struct net_device *dev )
+static netdev_tx_t lance_start_xmit( struct sk_buff *skb, struct net_device *dev )
 {
 	struct lance_private *lp = netdev_priv(dev);
 	struct lance_ioreg	 *IO = lp->iobase;
diff --git a/drivers/net/ethernet/amd/declance.c b/drivers/net/ethernet/amd/declance.c
index b584b78..5e994f9 100644
--- a/drivers/net/ethernet/amd/declance.c
+++ b/drivers/net/ethernet/amd/declance.c
@@ -893,7 +893,7 @@ static void lance_tx_timeout(struct net_device *dev)
 	netif_wake_queue(dev);
 }
 
-static int lance_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t lance_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct lance_private *lp = netdev_priv(dev);
 	volatile struct lance_regs *ll = lp->ll;
diff --git a/drivers/net/ethernet/amd/pcnet32.c b/drivers/net/ethernet/amd/pcnet32.c
index 7ccebae..237f6bb 100644
--- a/drivers/net/ethernet/amd/pcnet32.c
+++ b/drivers/net/ethernet/amd/pcnet32.c
@@ -318,7 +318,7 @@ static struct net_device_stats *pcnet32_get_stats(struct net_device *);
 static void pcnet32_load_multicast(struct net_device *dev);
 static void pcnet32_set_multicast_list(struct net_device *);
 static int pcnet32_ioctl(struct net_device *, struct ifreq *, int);
-static void pcnet32_watchdog(struct net_device *);
+static void pcnet32_watchdog(unsigned long);
 static int mdio_read(struct net_device *dev, int phy_id, int reg_num);
 static void mdio_write(struct net_device *dev, int phy_id, int reg_num,
 		       int val);
@@ -1915,7 +1915,7 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
 
 	init_timer(&lp->watchdog_timer);
 	lp->watchdog_timer.data = (unsigned long)dev;
-	lp->watchdog_timer.function = (void *)&pcnet32_watchdog;
+	lp->watchdog_timer.function = &pcnet32_watchdog;
 
 	/* The PCNET32-specific entries in the device structure. */
 	dev->netdev_ops = &pcnet32_netdev_ops;
@@ -2837,8 +2837,9 @@ static void pcnet32_check_media(struct net_device *dev, int verbose)
  * Could possibly be changed to use mii_check_media instead.
  */
 
-static void pcnet32_watchdog(struct net_device *dev)
+static void pcnet32_watchdog(unsigned long _dev)
 {
+	struct net_device *dev = (struct net_device *)_dev;
 	struct pcnet32_private *lp = netdev_priv(dev);
 	unsigned long flags;
 
diff --git a/drivers/net/ethernet/amd/sun3lance.c b/drivers/net/ethernet/amd/sun3lance.c
index 3d8c6b2..35160ad 100644
--- a/drivers/net/ethernet/amd/sun3lance.c
+++ b/drivers/net/ethernet/amd/sun3lance.c
@@ -235,7 +235,7 @@ struct lance_private {
 static int lance_probe( struct net_device *dev);
 static int lance_open( struct net_device *dev );
 static void lance_init_ring( struct net_device *dev );
-static int lance_start_xmit( struct sk_buff *skb, struct net_device *dev );
+static netdev_tx_t lance_start_xmit( struct sk_buff *skb, struct net_device *dev );
 static irqreturn_t lance_interrupt( int irq, void *dev_id);
 static int lance_rx( struct net_device *dev );
 static int lance_close( struct net_device *dev );
@@ -511,7 +511,7 @@ static void lance_init_ring( struct net_device *dev )
 }
 
 
-static int lance_start_xmit( struct sk_buff *skb, struct net_device *dev )
+static netdev_tx_t lance_start_xmit( struct sk_buff *skb, struct net_device *dev )
 {
 	struct lance_private *lp = netdev_priv(dev);
 	int entry, len;
diff --git a/drivers/net/ethernet/amd/sunlance.c b/drivers/net/ethernet/amd/sunlance.c
index 7847638..6126840 100644
--- a/drivers/net/ethernet/amd/sunlance.c
+++ b/drivers/net/ethernet/amd/sunlance.c
@@ -1106,7 +1106,7 @@ static void lance_tx_timeout(struct net_device *dev)
 	netif_wake_queue(dev);
 }
 
-static int lance_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t lance_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct lance_private *lp = netdev_priv(dev);
 	int entry, skblen, len;
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-common.h b/drivers/net/ethernet/amd/xgbe/xgbe-common.h
index bbef959..999ab1d 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-common.h
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-common.h
@@ -1283,14 +1283,14 @@ do {									\
  * operations, everything works on mask values.
  */
 #define XMDIO_READ(_pdata, _mmd, _reg)					\
-	((_pdata)->hw_if.read_mmd_regs((_pdata), 0,			\
+	((_pdata)->hw_if->read_mmd_regs((_pdata), 0,			\
 		MII_ADDR_C45 | (_mmd << 16) | ((_reg) & 0xffff)))
 
 #define XMDIO_READ_BITS(_pdata, _mmd, _reg, _mask)			\
 	(XMDIO_READ((_pdata), _mmd, _reg) & _mask)
 
 #define XMDIO_WRITE(_pdata, _mmd, _reg, _val)				\
-	((_pdata)->hw_if.write_mmd_regs((_pdata), 0,			\
+	((_pdata)->hw_if->write_mmd_regs((_pdata), 0,			\
 		MII_ADDR_C45 | (_mmd << 16) | ((_reg) & 0xffff), (_val)))
 
 #define XMDIO_WRITE_BITS(_pdata, _mmd, _reg, _mask, _val)		\
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-dcb.c b/drivers/net/ethernet/amd/xgbe/xgbe-dcb.c
index 895d356..b1c866e 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-dcb.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-dcb.c
@@ -202,7 +202,7 @@ static int xgbe_dcb_ieee_setets(struct net_device *netdev,
 	pdata->num_tcs = max_tc + 1;
 	memcpy(pdata->ets, ets, sizeof(*pdata->ets));
 
-	pdata->hw_if.config_dcb_tc(pdata);
+	pdata->hw_if->config_dcb_tc(pdata);
 
 	return 0;
 }
@@ -249,7 +249,7 @@ static int xgbe_dcb_ieee_setpfc(struct net_device *netdev,
 
 	memcpy(pdata->pfc, pfc, sizeof(*pdata->pfc));
 
-	pdata->hw_if.config_dcb_pfc(pdata);
+	pdata->hw_if->config_dcb_pfc(pdata);
 
 	return 0;
 }
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-desc.c b/drivers/net/ethernet/amd/xgbe/xgbe-desc.c
index b3bc87f..5bdfdd3 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-desc.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-desc.c
@@ -353,7 +353,7 @@ static int xgbe_map_rx_buffer(struct xgbe_prv_data *pdata,
 
 static void xgbe_wrapper_tx_descriptor_init(struct xgbe_prv_data *pdata)
 {
-	struct xgbe_hw_if *hw_if = &pdata->hw_if;
+	struct xgbe_hw_if *hw_if = pdata->hw_if;
 	struct xgbe_channel *channel;
 	struct xgbe_ring *ring;
 	struct xgbe_ring_data *rdata;
@@ -394,7 +394,7 @@ static void xgbe_wrapper_tx_descriptor_init(struct xgbe_prv_data *pdata)
 
 static void xgbe_wrapper_rx_descriptor_init(struct xgbe_prv_data *pdata)
 {
-	struct xgbe_hw_if *hw_if = &pdata->hw_if;
+	struct xgbe_hw_if *hw_if = pdata->hw_if;
 	struct xgbe_channel *channel;
 	struct xgbe_ring *ring;
 	struct xgbe_ring_desc *rdesc;
@@ -628,17 +628,12 @@ err_out:
 	return 0;
 }
 
-void xgbe_init_function_ptrs_desc(struct xgbe_desc_if *desc_if)
-{
-	DBGPR("-->xgbe_init_function_ptrs_desc\n");
-
-	desc_if->alloc_ring_resources = xgbe_alloc_ring_resources;
-	desc_if->free_ring_resources = xgbe_free_ring_resources;
-	desc_if->map_tx_skb = xgbe_map_tx_skb;
-	desc_if->map_rx_buffer = xgbe_map_rx_buffer;
-	desc_if->unmap_rdata = xgbe_unmap_rdata;
-	desc_if->wrapper_tx_desc_init = xgbe_wrapper_tx_descriptor_init;
-	desc_if->wrapper_rx_desc_init = xgbe_wrapper_rx_descriptor_init;
-
-	DBGPR("<--xgbe_init_function_ptrs_desc\n");
-}
+const struct xgbe_desc_if default_xgbe_desc_if = {
+	.alloc_ring_resources = xgbe_alloc_ring_resources,
+	.free_ring_resources = xgbe_free_ring_resources,
+	.map_tx_skb = xgbe_map_tx_skb,
+	.map_rx_buffer = xgbe_map_rx_buffer,
+	.unmap_rdata = xgbe_unmap_rdata,
+	.wrapper_tx_desc_init = xgbe_wrapper_tx_descriptor_init,
+	.wrapper_rx_desc_init = xgbe_wrapper_rx_descriptor_init,
+};
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
index 1babcc1..aa7f8f4e 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
@@ -2816,7 +2816,7 @@ static void xgbe_powerdown_rx(struct xgbe_prv_data *pdata)
 
 static int xgbe_init(struct xgbe_prv_data *pdata)
 {
-	struct xgbe_desc_if *desc_if = &pdata->desc_if;
+	struct xgbe_desc_if *desc_if = pdata->desc_if;
 	int ret;
 
 	DBGPR("-->xgbe_init\n");
@@ -2882,107 +2882,102 @@ static int xgbe_init(struct xgbe_prv_data *pdata)
 	return 0;
 }
 
-void xgbe_init_function_ptrs_dev(struct xgbe_hw_if *hw_if)
-{
-	DBGPR("-->xgbe_init_function_ptrs\n");
-
-	hw_if->tx_complete = xgbe_tx_complete;
-
-	hw_if->set_mac_address = xgbe_set_mac_address;
-	hw_if->config_rx_mode = xgbe_config_rx_mode;
-
-	hw_if->enable_rx_csum = xgbe_enable_rx_csum;
-	hw_if->disable_rx_csum = xgbe_disable_rx_csum;
-
-	hw_if->enable_rx_vlan_stripping = xgbe_enable_rx_vlan_stripping;
-	hw_if->disable_rx_vlan_stripping = xgbe_disable_rx_vlan_stripping;
-	hw_if->enable_rx_vlan_filtering = xgbe_enable_rx_vlan_filtering;
-	hw_if->disable_rx_vlan_filtering = xgbe_disable_rx_vlan_filtering;
-	hw_if->update_vlan_hash_table = xgbe_update_vlan_hash_table;
-
-	hw_if->read_mmd_regs = xgbe_read_mmd_regs;
-	hw_if->write_mmd_regs = xgbe_write_mmd_regs;
-
-	hw_if->set_gmii_speed = xgbe_set_gmii_speed;
-	hw_if->set_gmii_2500_speed = xgbe_set_gmii_2500_speed;
-	hw_if->set_xgmii_speed = xgbe_set_xgmii_speed;
-
-	hw_if->enable_tx = xgbe_enable_tx;
-	hw_if->disable_tx = xgbe_disable_tx;
-	hw_if->enable_rx = xgbe_enable_rx;
-	hw_if->disable_rx = xgbe_disable_rx;
-
-	hw_if->powerup_tx = xgbe_powerup_tx;
-	hw_if->powerdown_tx = xgbe_powerdown_tx;
-	hw_if->powerup_rx = xgbe_powerup_rx;
-	hw_if->powerdown_rx = xgbe_powerdown_rx;
-
-	hw_if->dev_xmit = xgbe_dev_xmit;
-	hw_if->dev_read = xgbe_dev_read;
-	hw_if->enable_int = xgbe_enable_int;
-	hw_if->disable_int = xgbe_disable_int;
-	hw_if->init = xgbe_init;
-	hw_if->exit = xgbe_exit;
+const struct xgbe_hw_if default_xgbe_hw_if = {
+	.tx_complete = xgbe_tx_complete,
+
+	.set_mac_address = xgbe_set_mac_address,
+	.config_rx_mode = xgbe_config_rx_mode,
+
+	.enable_rx_csum = xgbe_enable_rx_csum,
+	.disable_rx_csum = xgbe_disable_rx_csum,
+
+	.enable_rx_vlan_stripping = xgbe_enable_rx_vlan_stripping,
+	.disable_rx_vlan_stripping = xgbe_disable_rx_vlan_stripping,
+	.enable_rx_vlan_filtering = xgbe_enable_rx_vlan_filtering,
+	.disable_rx_vlan_filtering = xgbe_disable_rx_vlan_filtering,
+	.update_vlan_hash_table = xgbe_update_vlan_hash_table,
+
+	.read_mmd_regs = xgbe_read_mmd_regs,
+	.write_mmd_regs = xgbe_write_mmd_regs,
+
+	.set_gmii_speed = xgbe_set_gmii_speed,
+	.set_gmii_2500_speed = xgbe_set_gmii_2500_speed,
+	.set_xgmii_speed = xgbe_set_xgmii_speed,
+
+	.enable_tx = xgbe_enable_tx,
+	.disable_tx = xgbe_disable_tx,
+	.enable_rx = xgbe_enable_rx,
+	.disable_rx = xgbe_disable_rx,
+
+	.powerup_tx = xgbe_powerup_tx,
+	.powerdown_tx = xgbe_powerdown_tx,
+	.powerup_rx = xgbe_powerup_rx,
+	.powerdown_rx = xgbe_powerdown_rx,
+
+	.dev_xmit = xgbe_dev_xmit,
+	.dev_read = xgbe_dev_read,
+	.enable_int = xgbe_enable_int,
+	.disable_int = xgbe_disable_int,
+	.init = xgbe_init,
+	.exit = xgbe_exit,
 
 	/* Descriptor related Sequences have to be initialized here */
-	hw_if->tx_desc_init = xgbe_tx_desc_init;
-	hw_if->rx_desc_init = xgbe_rx_desc_init;
-	hw_if->tx_desc_reset = xgbe_tx_desc_reset;
-	hw_if->rx_desc_reset = xgbe_rx_desc_reset;
-	hw_if->is_last_desc = xgbe_is_last_desc;
-	hw_if->is_context_desc = xgbe_is_context_desc;
-	hw_if->tx_start_xmit = xgbe_tx_start_xmit;
+	.tx_desc_init = xgbe_tx_desc_init,
+	.rx_desc_init = xgbe_rx_desc_init,
+	.tx_desc_reset = xgbe_tx_desc_reset,
+	.rx_desc_reset = xgbe_rx_desc_reset,
+	.is_last_desc = xgbe_is_last_desc,
+	.is_context_desc = xgbe_is_context_desc,
+	.tx_start_xmit = xgbe_tx_start_xmit,
 
 	/* For FLOW ctrl */
-	hw_if->config_tx_flow_control = xgbe_config_tx_flow_control;
-	hw_if->config_rx_flow_control = xgbe_config_rx_flow_control;
+	.config_tx_flow_control = xgbe_config_tx_flow_control,
+	.config_rx_flow_control = xgbe_config_rx_flow_control,
 
 	/* For RX coalescing */
-	hw_if->config_rx_coalesce = xgbe_config_rx_coalesce;
-	hw_if->config_tx_coalesce = xgbe_config_tx_coalesce;
-	hw_if->usec_to_riwt = xgbe_usec_to_riwt;
-	hw_if->riwt_to_usec = xgbe_riwt_to_usec;
+	.config_rx_coalesce = xgbe_config_rx_coalesce,
+	.config_tx_coalesce = xgbe_config_tx_coalesce,
+	.usec_to_riwt = xgbe_usec_to_riwt,
+	.riwt_to_usec = xgbe_riwt_to_usec,
 
 	/* For RX and TX threshold config */
-	hw_if->config_rx_threshold = xgbe_config_rx_threshold;
-	hw_if->config_tx_threshold = xgbe_config_tx_threshold;
+	.config_rx_threshold = xgbe_config_rx_threshold,
+	.config_tx_threshold = xgbe_config_tx_threshold,
 
 	/* For RX and TX Store and Forward Mode config */
-	hw_if->config_rsf_mode = xgbe_config_rsf_mode;
-	hw_if->config_tsf_mode = xgbe_config_tsf_mode;
+	.config_rsf_mode = xgbe_config_rsf_mode,
+	.config_tsf_mode = xgbe_config_tsf_mode,
 
 	/* For TX DMA Operating on Second Frame config */
-	hw_if->config_osp_mode = xgbe_config_osp_mode;
+	.config_osp_mode = xgbe_config_osp_mode,
 
 	/* For RX and TX PBL config */
-	hw_if->config_rx_pbl_val = xgbe_config_rx_pbl_val;
-	hw_if->get_rx_pbl_val = xgbe_get_rx_pbl_val;
-	hw_if->config_tx_pbl_val = xgbe_config_tx_pbl_val;
-	hw_if->get_tx_pbl_val = xgbe_get_tx_pbl_val;
-	hw_if->config_pblx8 = xgbe_config_pblx8;
+	.config_rx_pbl_val = xgbe_config_rx_pbl_val,
+	.get_rx_pbl_val = xgbe_get_rx_pbl_val,
+	.config_tx_pbl_val = xgbe_config_tx_pbl_val,
+	.get_tx_pbl_val = xgbe_get_tx_pbl_val,
+	.config_pblx8 = xgbe_config_pblx8,
 
 	/* For MMC statistics support */
-	hw_if->tx_mmc_int = xgbe_tx_mmc_int;
-	hw_if->rx_mmc_int = xgbe_rx_mmc_int;
-	hw_if->read_mmc_stats = xgbe_read_mmc_stats;
+	.tx_mmc_int = xgbe_tx_mmc_int,
+	.rx_mmc_int = xgbe_rx_mmc_int,
+	.read_mmc_stats = xgbe_read_mmc_stats,
 
 	/* For PTP config */
-	hw_if->config_tstamp = xgbe_config_tstamp;
-	hw_if->update_tstamp_addend = xgbe_update_tstamp_addend;
-	hw_if->set_tstamp_time = xgbe_set_tstamp_time;
-	hw_if->get_tstamp_time = xgbe_get_tstamp_time;
-	hw_if->get_tx_tstamp = xgbe_get_tx_tstamp;
+	.config_tstamp = xgbe_config_tstamp,
+	.update_tstamp_addend = xgbe_update_tstamp_addend,
+	.set_tstamp_time = xgbe_set_tstamp_time,
+	.get_tstamp_time = xgbe_get_tstamp_time,
+	.get_tx_tstamp = xgbe_get_tx_tstamp,
 
 	/* For Data Center Bridging config */
-	hw_if->config_tc = xgbe_config_tc;
-	hw_if->config_dcb_tc = xgbe_config_dcb_tc;
-	hw_if->config_dcb_pfc = xgbe_config_dcb_pfc;
+	.config_tc = xgbe_config_tc,
+	.config_dcb_tc = xgbe_config_dcb_tc,
+	.config_dcb_pfc = xgbe_config_dcb_pfc,
 
 	/* For Receive Side Scaling */
-	hw_if->enable_rss = xgbe_enable_rss;
-	hw_if->disable_rss = xgbe_disable_rss;
-	hw_if->set_rss_hash_key = xgbe_set_rss_hash_key;
-	hw_if->set_rss_lookup_table = xgbe_set_rss_lookup_table;
-
-	DBGPR("<--xgbe_init_function_ptrs\n");
-}
+	.enable_rss = xgbe_enable_rss,
+	.disable_rss = xgbe_disable_rss,
+	.set_rss_hash_key = xgbe_set_rss_hash_key,
+	.set_rss_lookup_table = xgbe_set_rss_lookup_table,
+};
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
index ebf9224..9d6192a 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
@@ -245,7 +245,7 @@ static int xgbe_maybe_stop_tx_queue(struct xgbe_channel *channel,
 		 * support, tell it now
 		 */
 		if (ring->tx.xmit_more)
-			pdata->hw_if.tx_start_xmit(channel, ring);
+			pdata->hw_if->tx_start_xmit(channel, ring);
 
 		return NETDEV_TX_BUSY;
 	}
@@ -273,7 +273,7 @@ static int xgbe_calc_rx_buf_size(struct net_device *netdev, unsigned int mtu)
 
 static void xgbe_enable_rx_tx_ints(struct xgbe_prv_data *pdata)
 {
-	struct xgbe_hw_if *hw_if = &pdata->hw_if;
+	struct xgbe_hw_if *hw_if = pdata->hw_if;
 	struct xgbe_channel *channel;
 	enum xgbe_int int_id;
 	unsigned int i;
@@ -295,7 +295,7 @@ static void xgbe_enable_rx_tx_ints(struct xgbe_prv_data *pdata)
 
 static void xgbe_disable_rx_tx_ints(struct xgbe_prv_data *pdata)
 {
-	struct xgbe_hw_if *hw_if = &pdata->hw_if;
+	struct xgbe_hw_if *hw_if = pdata->hw_if;
 	struct xgbe_channel *channel;
 	enum xgbe_int int_id;
 	unsigned int i;
@@ -318,7 +318,7 @@ static void xgbe_disable_rx_tx_ints(struct xgbe_prv_data *pdata)
 static irqreturn_t xgbe_isr(int irq, void *data)
 {
 	struct xgbe_prv_data *pdata = data;
-	struct xgbe_hw_if *hw_if = &pdata->hw_if;
+	struct xgbe_hw_if *hw_if = pdata->hw_if;
 	struct xgbe_channel *channel;
 	unsigned int dma_isr, dma_ch_isr;
 	unsigned int mac_isr, mac_tssr;
@@ -447,7 +447,7 @@ static void xgbe_service(struct work_struct *work)
 						   struct xgbe_prv_data,
 						   service_work);
 
-	pdata->phy_if.phy_status(pdata);
+	pdata->phy_if->phy_status(pdata);
 }
 
 static void xgbe_service_timer(unsigned long data)
@@ -706,7 +706,7 @@ static void xgbe_free_irqs(struct xgbe_prv_data *pdata)
 
 void xgbe_init_tx_coalesce(struct xgbe_prv_data *pdata)
 {
-	struct xgbe_hw_if *hw_if = &pdata->hw_if;
+	struct xgbe_hw_if *hw_if = pdata->hw_if;
 
 	DBGPR("-->xgbe_init_tx_coalesce\n");
 
@@ -720,7 +720,7 @@ void xgbe_init_tx_coalesce(struct xgbe_prv_data *pdata)
 
 void xgbe_init_rx_coalesce(struct xgbe_prv_data *pdata)
 {
-	struct xgbe_hw_if *hw_if = &pdata->hw_if;
+	struct xgbe_hw_if *hw_if = pdata->hw_if;
 
 	DBGPR("-->xgbe_init_rx_coalesce\n");
 
@@ -735,7 +735,7 @@ void xgbe_init_rx_coalesce(struct xgbe_prv_data *pdata)
 
 static void xgbe_free_tx_data(struct xgbe_prv_data *pdata)
 {
-	struct xgbe_desc_if *desc_if = &pdata->desc_if;
+	struct xgbe_desc_if *desc_if = pdata->desc_if;
 	struct xgbe_channel *channel;
 	struct xgbe_ring *ring;
 	struct xgbe_ring_data *rdata;
@@ -760,7 +760,7 @@ static void xgbe_free_tx_data(struct xgbe_prv_data *pdata)
 
 static void xgbe_free_rx_data(struct xgbe_prv_data *pdata)
 {
-	struct xgbe_desc_if *desc_if = &pdata->desc_if;
+	struct xgbe_desc_if *desc_if = pdata->desc_if;
 	struct xgbe_channel *channel;
 	struct xgbe_ring *ring;
 	struct xgbe_ring_data *rdata;
@@ -788,13 +788,13 @@ static int xgbe_phy_init(struct xgbe_prv_data *pdata)
 	pdata->phy_link = -1;
 	pdata->phy_speed = SPEED_UNKNOWN;
 
-	return pdata->phy_if.phy_reset(pdata);
+	return pdata->phy_if->phy_reset(pdata);
 }
 
 int xgbe_powerdown(struct net_device *netdev, unsigned int caller)
 {
 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
-	struct xgbe_hw_if *hw_if = &pdata->hw_if;
+	struct xgbe_hw_if *hw_if = pdata->hw_if;
 	unsigned long flags;
 
 	DBGPR("-->xgbe_powerdown\n");
@@ -833,7 +833,7 @@ int xgbe_powerdown(struct net_device *netdev, unsigned int caller)
 int xgbe_powerup(struct net_device *netdev, unsigned int caller)
 {
 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
-	struct xgbe_hw_if *hw_if = &pdata->hw_if;
+	struct xgbe_hw_if *hw_if = pdata->hw_if;
 	unsigned long flags;
 
 	DBGPR("-->xgbe_powerup\n");
@@ -870,8 +870,8 @@ int xgbe_powerup(struct net_device *netdev, unsigned int caller)
 
 static int xgbe_start(struct xgbe_prv_data *pdata)
 {
-	struct xgbe_hw_if *hw_if = &pdata->hw_if;
-	struct xgbe_phy_if *phy_if = &pdata->phy_if;
+	struct xgbe_hw_if *hw_if = pdata->hw_if;
+	struct xgbe_phy_if *phy_if = pdata->phy_if;
 	struct net_device *netdev = pdata->netdev;
 	int ret;
 
@@ -914,8 +914,8 @@ err_phy:
 
 static void xgbe_stop(struct xgbe_prv_data *pdata)
 {
-	struct xgbe_hw_if *hw_if = &pdata->hw_if;
-	struct xgbe_phy_if *phy_if = &pdata->phy_if;
+	struct xgbe_hw_if *hw_if = pdata->hw_if;
+	struct xgbe_phy_if *phy_if = pdata->phy_if;
 	struct xgbe_channel *channel;
 	struct net_device *netdev = pdata->netdev;
 	struct netdev_queue *txq;
@@ -1143,7 +1143,7 @@ static int xgbe_set_hwtstamp_settings(struct xgbe_prv_data *pdata,
 		return -ERANGE;
 	}
 
-	pdata->hw_if.config_tstamp(pdata, mac_tscr);
+	pdata->hw_if->config_tstamp(pdata, mac_tscr);
 
 	memcpy(&pdata->tstamp_config, &config, sizeof(config));
 
@@ -1292,7 +1292,7 @@ static void xgbe_packet_info(struct xgbe_prv_data *pdata,
 static int xgbe_open(struct net_device *netdev)
 {
 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
-	struct xgbe_desc_if *desc_if = &pdata->desc_if;
+	struct xgbe_desc_if *desc_if = pdata->desc_if;
 	int ret;
 
 	DBGPR("-->xgbe_open\n");
@@ -1364,7 +1364,7 @@ err_sysclk:
 static int xgbe_close(struct net_device *netdev)
 {
 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
-	struct xgbe_desc_if *desc_if = &pdata->desc_if;
+	struct xgbe_desc_if *desc_if = pdata->desc_if;
 
 	DBGPR("-->xgbe_close\n");
 
@@ -1388,11 +1388,11 @@ static int xgbe_close(struct net_device *netdev)
 	return 0;
 }
 
-static int xgbe_xmit(struct sk_buff *skb, struct net_device *netdev)
+static netdev_tx_t xgbe_xmit(struct sk_buff *skb, struct net_device *netdev)
 {
 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
-	struct xgbe_hw_if *hw_if = &pdata->hw_if;
-	struct xgbe_desc_if *desc_if = &pdata->desc_if;
+	struct xgbe_hw_if *hw_if = pdata->hw_if;
+	struct xgbe_desc_if *desc_if = pdata->desc_if;
 	struct xgbe_channel *channel;
 	struct xgbe_ring *ring;
 	struct xgbe_packet_data *packet;
@@ -1461,7 +1461,7 @@ tx_netdev_return:
 static void xgbe_set_rx_mode(struct net_device *netdev)
 {
 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
-	struct xgbe_hw_if *hw_if = &pdata->hw_if;
+	struct xgbe_hw_if *hw_if = pdata->hw_if;
 
 	DBGPR("-->xgbe_set_rx_mode\n");
 
@@ -1473,7 +1473,7 @@ static void xgbe_set_rx_mode(struct net_device *netdev)
 static int xgbe_set_mac_address(struct net_device *netdev, void *addr)
 {
 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
-	struct xgbe_hw_if *hw_if = &pdata->hw_if;
+	struct xgbe_hw_if *hw_if = pdata->hw_if;
 	struct sockaddr *saddr = addr;
 
 	DBGPR("-->xgbe_set_mac_address\n");
@@ -1548,7 +1548,7 @@ static struct rtnl_link_stats64 *xgbe_get_stats64(struct net_device *netdev,
 
 	DBGPR("-->%s\n", __func__);
 
-	pdata->hw_if.read_mmc_stats(pdata);
+	pdata->hw_if->read_mmc_stats(pdata);
 
 	s->rx_packets = pstats->rxframecount_gb;
 	s->rx_bytes = pstats->rxoctetcount_gb;
@@ -1575,7 +1575,7 @@ static int xgbe_vlan_rx_add_vid(struct net_device *netdev, __be16 proto,
 				u16 vid)
 {
 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
-	struct xgbe_hw_if *hw_if = &pdata->hw_if;
+	struct xgbe_hw_if *hw_if = pdata->hw_if;
 
 	DBGPR("-->%s\n", __func__);
 
@@ -1591,7 +1591,7 @@ static int xgbe_vlan_rx_kill_vid(struct net_device *netdev, __be16 proto,
 				 u16 vid)
 {
 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
-	struct xgbe_hw_if *hw_if = &pdata->hw_if;
+	struct xgbe_hw_if *hw_if = pdata->hw_if;
 
 	DBGPR("-->%s\n", __func__);
 
@@ -1641,7 +1641,7 @@ static int xgbe_setup_tc(struct net_device *netdev, u32 handle, __be16 proto,
 		return -EINVAL;
 
 	pdata->num_tcs = tc;
-	pdata->hw_if.config_tc(pdata);
+	pdata->hw_if->config_tc(pdata);
 
 	return 0;
 }
@@ -1650,7 +1650,7 @@ static int xgbe_set_features(struct net_device *netdev,
 			     netdev_features_t features)
 {
 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
-	struct xgbe_hw_if *hw_if = &pdata->hw_if;
+	struct xgbe_hw_if *hw_if = pdata->hw_if;
 	netdev_features_t rxhash, rxcsum, rxvlan, rxvlan_filter;
 	int ret = 0;
 
@@ -1716,8 +1716,8 @@ struct net_device_ops *xgbe_get_netdev_ops(void)
 static void xgbe_rx_refresh(struct xgbe_channel *channel)
 {
 	struct xgbe_prv_data *pdata = channel->pdata;
-	struct xgbe_hw_if *hw_if = &pdata->hw_if;
-	struct xgbe_desc_if *desc_if = &pdata->desc_if;
+	struct xgbe_hw_if *hw_if = pdata->hw_if;
+	struct xgbe_desc_if *desc_if = pdata->desc_if;
 	struct xgbe_ring *ring = channel->rx_ring;
 	struct xgbe_ring_data *rdata;
 
@@ -1794,8 +1794,8 @@ static struct sk_buff *xgbe_create_skb(struct xgbe_prv_data *pdata,
 static int xgbe_tx_poll(struct xgbe_channel *channel)
 {
 	struct xgbe_prv_data *pdata = channel->pdata;
-	struct xgbe_hw_if *hw_if = &pdata->hw_if;
-	struct xgbe_desc_if *desc_if = &pdata->desc_if;
+	struct xgbe_hw_if *hw_if = pdata->hw_if;
+	struct xgbe_desc_if *desc_if = pdata->desc_if;
 	struct xgbe_ring *ring = channel->tx_ring;
 	struct xgbe_ring_data *rdata;
 	struct xgbe_ring_desc *rdesc;
@@ -1865,7 +1865,7 @@ static int xgbe_tx_poll(struct xgbe_channel *channel)
 static int xgbe_rx_poll(struct xgbe_channel *channel, int budget)
 {
 	struct xgbe_prv_data *pdata = channel->pdata;
-	struct xgbe_hw_if *hw_if = &pdata->hw_if;
+	struct xgbe_hw_if *hw_if = pdata->hw_if;
 	struct xgbe_ring *ring = channel->rx_ring;
 	struct xgbe_ring_data *rdata;
 	struct xgbe_packet_data *packet;
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c b/drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c
index 11d9f0c..78767ab 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c
@@ -206,7 +206,7 @@ static void xgbe_get_ethtool_stats(struct net_device *netdev,
 	u8 *stat;
 	int i;
 
-	pdata->hw_if.read_mmc_stats(pdata);
+	pdata->hw_if->read_mmc_stats(pdata);
 	for (i = 0; i < XGBE_STATS_COUNT; i++) {
 		stat = (u8 *)pdata + xgbe_gstring_stats[i].stat_offset;
 		*data++ = *(u64 *)stat;
@@ -267,7 +267,7 @@ static int xgbe_set_pauseparam(struct net_device *netdev,
 		pdata->phy.advertising ^= ADVERTISED_Asym_Pause;
 
 	if (netif_running(netdev))
-		ret = pdata->phy_if.phy_config_aneg(pdata);
+		ret = pdata->phy_if->phy_config_aneg(pdata);
 
 	return ret;
 }
@@ -368,7 +368,7 @@ static int xgbe_set_settings(struct net_device *netdev,
 		pdata->phy.advertising &= ~ADVERTISED_Autoneg;
 
 	if (netif_running(netdev))
-		ret = pdata->phy_if.phy_config_aneg(pdata);
+		ret = pdata->phy_if->phy_config_aneg(pdata);
 
 	return ret;
 }
@@ -422,7 +422,7 @@ static int xgbe_set_coalesce(struct net_device *netdev,
 			     struct ethtool_coalesce *ec)
 {
 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
-	struct xgbe_hw_if *hw_if = &pdata->hw_if;
+	struct xgbe_hw_if *hw_if = pdata->hw_if;
 	unsigned int rx_frames, rx_riwt, rx_usecs;
 	unsigned int tx_frames;
 
@@ -545,7 +545,7 @@ static int xgbe_set_rxfh(struct net_device *netdev, const u32 *indir,
 			 const u8 *key, const u8 hfunc)
 {
 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
-	struct xgbe_hw_if *hw_if = &pdata->hw_if;
+	struct xgbe_hw_if *hw_if = pdata->hw_if;
 	unsigned int ret;
 
 	if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) {
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-main.c b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
index 3eee320..4188681 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-main.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
@@ -202,13 +202,6 @@ static void xgbe_default_config(struct xgbe_prv_data *pdata)
 	DBGPR("<--xgbe_default_config\n");
 }
 
-static void xgbe_init_all_fptrs(struct xgbe_prv_data *pdata)
-{
-	xgbe_init_function_ptrs_dev(&pdata->hw_if);
-	xgbe_init_function_ptrs_phy(&pdata->phy_if);
-	xgbe_init_function_ptrs_desc(&pdata->desc_if);
-}
-
 #ifdef CONFIG_ACPI
 static int xgbe_acpi_support(struct xgbe_prv_data *pdata)
 {
@@ -647,10 +640,12 @@ static int xgbe_probe(struct platform_device *pdev)
 	memcpy(netdev->dev_addr, pdata->mac_addr, netdev->addr_len);
 
 	/* Set all the function pointers */
-	xgbe_init_all_fptrs(pdata);
+	pdata->hw_if = &default_xgbe_hw_if;
+	pdata->phy_if = &default_xgbe_phy_if;
+	pdata->desc_if = &default_xgbe_desc_if;
 
 	/* Issue software reset to device */
-	pdata->hw_if.exit(pdata);
+	pdata->hw_if->exit(pdata);
 
 	/* Populate the hardware features */
 	xgbe_get_all_hw_features(pdata);
@@ -704,7 +699,7 @@ static int xgbe_probe(struct platform_device *pdev)
 	XGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, UDP4TE, 1);
 
 	/* Call MDIO/PHY initialization routine */
-	pdata->phy_if.phy_init(pdata);
+	pdata->phy_if->phy_init(pdata);
 
 	/* Set device operations */
 	netdev->netdev_ops = xgbe_get_netdev_ops();
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
index 84c5d29..697b4f2 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
@@ -202,7 +202,7 @@ static void xgbe_xgmii_mode(struct xgbe_prv_data *pdata)
 	xgbe_an_enable_kr_training(pdata);
 
 	/* Set MAC to 10G speed */
-	pdata->hw_if.set_xgmii_speed(pdata);
+	pdata->hw_if->set_xgmii_speed(pdata);
 
 	/* Set PCS to KR/10G speed */
 	reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL2);
@@ -250,7 +250,7 @@ static void xgbe_gmii_2500_mode(struct xgbe_prv_data *pdata)
 	xgbe_an_disable_kr_training(pdata);
 
 	/* Set MAC to 2.5G speed */
-	pdata->hw_if.set_gmii_2500_speed(pdata);
+	pdata->hw_if->set_gmii_2500_speed(pdata);
 
 	/* Set PCS to KX/1G speed */
 	reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL2);
@@ -298,7 +298,7 @@ static void xgbe_gmii_mode(struct xgbe_prv_data *pdata)
 	xgbe_an_disable_kr_training(pdata);
 
 	/* Set MAC to 1G speed */
-	pdata->hw_if.set_gmii_speed(pdata);
+	pdata->hw_if->set_gmii_speed(pdata);
 
 	/* Set PCS to KX/1G speed */
 	reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL2);
@@ -877,13 +877,13 @@ static void xgbe_phy_adjust_link(struct xgbe_prv_data *pdata)
 
 		if (pdata->tx_pause != pdata->phy.tx_pause) {
 			new_state = 1;
-			pdata->hw_if.config_tx_flow_control(pdata);
+			pdata->hw_if->config_tx_flow_control(pdata);
 			pdata->tx_pause = pdata->phy.tx_pause;
 		}
 
 		if (pdata->rx_pause != pdata->phy.rx_pause) {
 			new_state = 1;
-			pdata->hw_if.config_rx_flow_control(pdata);
+			pdata->hw_if->config_rx_flow_control(pdata);
 			pdata->rx_pause = pdata->phy.rx_pause;
 		}
 
@@ -1348,14 +1348,13 @@ static void xgbe_phy_init(struct xgbe_prv_data *pdata)
 		xgbe_dump_phy_registers(pdata);
 }
 
-void xgbe_init_function_ptrs_phy(struct xgbe_phy_if *phy_if)
-{
-	phy_if->phy_init        = xgbe_phy_init;
+const struct xgbe_phy_if default_xgbe_phy_if = {
+	.phy_init        = xgbe_phy_init,
 
-	phy_if->phy_reset       = xgbe_phy_reset;
-	phy_if->phy_start       = xgbe_phy_start;
-	phy_if->phy_stop        = xgbe_phy_stop;
+	.phy_reset       = xgbe_phy_reset,
+	.phy_start       = xgbe_phy_start,
+	.phy_stop        = xgbe_phy_stop,
 
-	phy_if->phy_status      = xgbe_phy_status;
-	phy_if->phy_config_aneg = xgbe_phy_config_aneg;
-}
+	.phy_status      = xgbe_phy_status,
+	.phy_config_aneg = xgbe_phy_config_aneg,
+};
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-ptp.c b/drivers/net/ethernet/amd/xgbe/xgbe-ptp.c
index b03e4f5..78e4cc4 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-ptp.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-ptp.c
@@ -129,7 +129,7 @@ static cycle_t xgbe_cc_read(const struct cyclecounter *cc)
 						   tstamp_cc);
 	u64 nsec;
 
-	nsec = pdata->hw_if.get_tstamp_time(pdata);
+	nsec = pdata->hw_if->get_tstamp_time(pdata);
 
 	return nsec;
 }
@@ -158,7 +158,7 @@ static int xgbe_adjfreq(struct ptp_clock_info *info, s32 delta)
 
 	spin_lock_irqsave(&pdata->tstamp_lock, flags);
 
-	pdata->hw_if.update_tstamp_addend(pdata, addend);
+	pdata->hw_if->update_tstamp_addend(pdata, addend);
 
 	spin_unlock_irqrestore(&pdata->tstamp_lock, flags);
 
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe.h b/drivers/net/ethernet/amd/xgbe/xgbe.h
index 98d9d63..3825a58 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe.h
+++ b/drivers/net/ethernet/amd/xgbe/xgbe.h
@@ -786,9 +786,9 @@ struct xgbe_prv_data {
 	int dev_irq;
 	unsigned int per_channel_irq;
 
-	struct xgbe_hw_if hw_if;
-	struct xgbe_phy_if phy_if;
-	struct xgbe_desc_if desc_if;
+	struct xgbe_hw_if *hw_if;
+	struct xgbe_phy_if *phy_if;
+	struct xgbe_desc_if *desc_if;
 
 	/* AXI DMA settings */
 	unsigned int coherent;
@@ -951,6 +951,10 @@ struct xgbe_prv_data {
 #endif
 };
 
+extern const struct xgbe_hw_if default_xgbe_hw_if;
+extern const struct xgbe_phy_if default_xgbe_phy_if;
+extern const struct xgbe_desc_if default_xgbe_desc_if;
+
 /* Function prototypes*/
 
 void xgbe_init_function_ptrs_dev(struct xgbe_hw_if *);
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
index fd20088..2c16ef15 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
@@ -123,7 +123,7 @@ static void xgene_enet_delete_bufpool(struct xgene_enet_desc_ring *buf_pool)
 	buf_pool->tail = tail;
 }
 
-static irqreturn_t xgene_enet_rx_irq(const int irq, void *data)
+static irqreturn_t xgene_enet_rx_irq(int irq, void *data)
 {
 	struct xgene_enet_desc_ring *rx_ring = data;
 
@@ -588,7 +588,7 @@ static int xgene_enet_process_ring(struct xgene_enet_desc_ring *ring,
 	return processed;
 }
 
-static int xgene_enet_napi(struct napi_struct *napi, const int budget)
+static int xgene_enet_napi(struct napi_struct *napi, int budget)
 {
 	struct xgene_enet_desc_ring *ring;
 	int processed;
diff --git a/drivers/net/ethernet/arc/emac_main.c b/drivers/net/ethernet/arc/emac_main.c
index a3a9392..d4c1818 100644
--- a/drivers/net/ethernet/arc/emac_main.c
+++ b/drivers/net/ethernet/arc/emac_main.c
@@ -648,7 +648,7 @@ static struct net_device_stats *arc_emac_stats(struct net_device *ndev)
  *
  * This function is invoked from upper layers to initiate transmission.
  */
-static int arc_emac_tx(struct sk_buff *skb, struct net_device *ndev)
+static netdev_tx_t arc_emac_tx(struct sk_buff *skb, struct net_device *ndev)
 {
 	struct arc_emac_priv *priv = netdev_priv(ndev);
 	unsigned int len, *txbd_curr = &priv->txbd_curr;
diff --git a/drivers/net/ethernet/atheros/alx/main.c b/drivers/net/ethernet/atheros/alx/main.c
index 8611811..be1aaac 100644
--- a/drivers/net/ethernet/atheros/alx/main.c
+++ b/drivers/net/ethernet/atheros/alx/main.c
@@ -1497,7 +1497,7 @@ static SIMPLE_DEV_PM_OPS(alx_pm_ops, alx_suspend, alx_resume);
 
 
 static pci_ers_result_t alx_pci_error_detected(struct pci_dev *pdev,
-					       pci_channel_state_t state)
+					       enum pci_channel_state state)
 {
 	struct alx_priv *alx = pci_get_drvdata(pdev);
 	struct net_device *netdev = alx->dev;
diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
index d0084d4..d5d7f46 100644
--- a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
+++ b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
@@ -2715,7 +2715,7 @@ static void atl1c_remove(struct pci_dev *pdev)
  * this device has been detected.
  */
 static pci_ers_result_t atl1c_io_error_detected(struct pci_dev *pdev,
-						pci_channel_state_t state)
+						enum pci_channel_state state)
 {
 	struct net_device *netdev = pci_get_drvdata(pdev);
 	struct atl1c_adapter *adapter = netdev_priv(netdev);
diff --git a/drivers/net/ethernet/atheros/atl1e/atl1e_main.c b/drivers/net/ethernet/atheros/atl1e/atl1e_main.c
index 59a03a1..1ae287b 100644
--- a/drivers/net/ethernet/atheros/atl1e/atl1e_main.c
+++ b/drivers/net/ethernet/atheros/atl1e/atl1e_main.c
@@ -2485,7 +2485,7 @@ static void atl1e_remove(struct pci_dev *pdev)
  * this device has been detected.
  */
 static pci_ers_result_t
-atl1e_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
+atl1e_io_error_detected(struct pci_dev *pdev, enum pci_channel_state state)
 {
 	struct net_device *netdev = pci_get_drvdata(pdev);
 	struct atl1e_adapter *adapter = netdev_priv(netdev);
diff --git a/drivers/net/ethernet/aurora/nb8800.c b/drivers/net/ethernet/aurora/nb8800.c
index 08a23e6..2ffb80f 100644
--- a/drivers/net/ethernet/aurora/nb8800.c
+++ b/drivers/net/ethernet/aurora/nb8800.c
@@ -395,7 +395,7 @@ static void nb8800_tx_dma_start_irq(struct net_device *dev)
 	spin_unlock(&priv->tx_lock);
 }
 
-static int nb8800_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t nb8800_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct nb8800_priv *priv = netdev_priv(dev);
 	struct nb8800_tx_desc *txd;
diff --git a/drivers/net/ethernet/broadcom/bcm63xx_enet.c b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
index 87c6b5b..ebb3a41 100644
--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
@@ -571,7 +571,7 @@ static irqreturn_t bcm_enet_isr_dma(int irq, void *dev_id)
 /*
  * tx request callback
  */
-static int bcm_enet_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t bcm_enet_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct bcm_enet_priv *priv;
 	struct bcm_enet_desc *desc;
diff --git a/drivers/net/ethernet/broadcom/bnx2.c b/drivers/net/ethernet/broadcom/bnx2.c
index 8fc3f3c..d97e01e 100644
--- a/drivers/net/ethernet/broadcom/bnx2.c
+++ b/drivers/net/ethernet/broadcom/bnx2.c
@@ -8701,7 +8701,7 @@ static SIMPLE_DEV_PM_OPS(bnx2_pm_ops, bnx2_suspend, bnx2_resume);
  * this device has been detected.
  */
 static pci_ers_result_t bnx2_io_error_detected(struct pci_dev *pdev,
-					       pci_channel_state_t state)
+					       enum pci_channel_state state)
 {
 	struct net_device *dev = pci_get_drvdata(pdev);
 	struct bnx2 *bp = netdev_priv(dev);
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
index 0e68fad..3546d87 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
@@ -1124,7 +1124,7 @@ static inline u8 bnx2x_get_path_func_num(struct bnx2x *bp)
 static inline void bnx2x_init_bp_objs(struct bnx2x *bp)
 {
 	/* RX_MODE controlling object */
-	bnx2x_init_rx_mode_obj(bp, &bp->rx_mode_obj);
+	bnx2x_init_rx_mode_obj(bp);
 
 	/* multicast configuration controlling object */
 	bnx2x_init_mcast_obj(bp, &bp->mcast_obj, bp->fp->cl_id, bp->fp->cid,
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
index 1fb8010..0a8dc20 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
@@ -5621,7 +5621,7 @@ static int bnx2x_get_link_speed_duplex(struct bnx2x_phy *phy,
 	return 0;
 }
 
-static int bnx2x_link_settings_status(struct bnx2x_phy *phy,
+static u8 bnx2x_link_settings_status(struct bnx2x_phy *phy,
 				      struct link_params *params,
 				      struct link_vars *vars)
 {
@@ -5695,7 +5695,7 @@ static int bnx2x_link_settings_status(struct bnx2x_phy *phy,
 	return rc;
 }
 
-static int bnx2x_warpcore_read_status(struct bnx2x_phy *phy,
+static u8 bnx2x_warpcore_read_status(struct bnx2x_phy *phy,
 				     struct link_params *params,
 				     struct link_vars *vars)
 {
@@ -7436,7 +7436,7 @@ static void bnx2x_8073_specific_func(struct bnx2x_phy *phy,
 	}
 }
 
-static int bnx2x_8073_config_init(struct bnx2x_phy *phy,
+static void bnx2x_8073_config_init(struct bnx2x_phy *phy,
 				  struct link_params *params,
 				  struct link_vars *vars)
 {
@@ -7499,7 +7499,7 @@ static int bnx2x_8073_config_init(struct bnx2x_phy *phy,
 	if (params->loopback_mode == LOOPBACK_EXT) {
 		bnx2x_807x_force_10G(bp, phy);
 		DP(NETIF_MSG_LINK, "Forced speed 10G on 807X\n");
-		return 0;
+		return;
 	} else {
 		bnx2x_cl45_write(bp, phy,
 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_BCM_CTRL, 0x0002);
@@ -7581,7 +7581,6 @@ static int bnx2x_8073_config_init(struct bnx2x_phy *phy,
 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0x1200);
 	DP(NETIF_MSG_LINK, "807x Autoneg Restart: Advertise 1G=%x, 10G=%x\n",
 		   ((val & (1<<5)) > 0), ((val & (1<<7)) > 0));
-	return 0;
 }
 
 static u8 bnx2x_8073_read_status(struct bnx2x_phy *phy,
@@ -7748,7 +7747,7 @@ static void bnx2x_8073_link_reset(struct bnx2x_phy *phy,
 /******************************************************************/
 /*			BCM8705 PHY SECTION			  */
 /******************************************************************/
-static int bnx2x_8705_config_init(struct bnx2x_phy *phy,
+static void bnx2x_8705_config_init(struct bnx2x_phy *phy,
 				  struct link_params *params,
 				  struct link_vars *vars)
 {
@@ -7772,7 +7771,6 @@ static int bnx2x_8705_config_init(struct bnx2x_phy *phy,
 			 MDIO_WIS_DEVAD, MDIO_WIS_REG_LASI_CNTL, 0x1);
 	/* BCM8705 doesn't have microcode, hence the 0 */
 	bnx2x_save_spirom_version(bp, params->port, params->shmem_base, 0);
-	return 0;
 }
 
 static u8 bnx2x_8705_read_status(struct bnx2x_phy *phy,
@@ -8959,7 +8957,7 @@ static u8 bnx2x_8706_8726_read_status(struct bnx2x_phy *phy,
 /******************************************************************/
 /*			BCM8706 PHY SECTION			  */
 /******************************************************************/
-static u8 bnx2x_8706_config_init(struct bnx2x_phy *phy,
+static void bnx2x_8706_config_init(struct bnx2x_phy *phy,
 				 struct link_params *params,
 				 struct link_vars *vars)
 {
@@ -9061,11 +9059,9 @@ static u8 bnx2x_8706_config_init(struct bnx2x_phy *phy,
 		bnx2x_cl45_write(bp, phy,
 			MDIO_PMA_DEVAD, MDIO_PMA_REG_DIGITAL_CTRL, tmp1);
 	}
-
-	return 0;
 }
 
-static int bnx2x_8706_read_status(struct bnx2x_phy *phy,
+static u8 bnx2x_8706_read_status(struct bnx2x_phy *phy,
 				  struct link_params *params,
 				  struct link_vars *vars)
 {
@@ -9142,7 +9138,7 @@ static u8 bnx2x_8726_read_status(struct bnx2x_phy *phy,
 }
 
 
-static int bnx2x_8726_config_init(struct bnx2x_phy *phy,
+static void bnx2x_8726_config_init(struct bnx2x_phy *phy,
 				  struct link_params *params,
 				  struct link_vars *vars)
 {
@@ -9223,8 +9219,6 @@ static int bnx2x_8726_config_init(struct bnx2x_phy *phy,
 				 phy->tx_preemphasis[1]);
 	}
 
-	return 0;
-
 }
 
 static void bnx2x_8726_link_reset(struct bnx2x_phy *phy,
@@ -9360,7 +9354,7 @@ static void bnx2x_8727_config_speed(struct bnx2x_phy *phy,
 	}
 }
 
-static int bnx2x_8727_config_init(struct bnx2x_phy *phy,
+static void bnx2x_8727_config_init(struct bnx2x_phy *phy,
 				  struct link_params *params,
 				  struct link_vars *vars)
 {
@@ -9442,8 +9436,6 @@ static int bnx2x_8727_config_init(struct bnx2x_phy *phy,
 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER,
 				 (tmp2 & 0x7fff));
 	}
-
-	return 0;
 }
 
 static void bnx2x_8727_handle_mod_abs(struct bnx2x_phy *phy,
@@ -10018,7 +10010,7 @@ static int bnx2x_848xx_cmn_config_init(struct bnx2x_phy *phy,
 	return 0;
 }
 
-static int bnx2x_8481_config_init(struct bnx2x_phy *phy,
+static void bnx2x_8481_config_init(struct bnx2x_phy *phy,
 				  struct link_params *params,
 				  struct link_vars *vars)
 {
@@ -10032,7 +10024,7 @@ static int bnx2x_8481_config_init(struct bnx2x_phy *phy,
 	bnx2x_wait_reset_complete(bp, phy, params);
 
 	bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 1<<15);
-	return bnx2x_848xx_cmn_config_init(phy, params, vars);
+	bnx2x_848xx_cmn_config_init(phy, params, vars);
 }
 
 #define PHY848xx_CMDHDLR_WAIT 300
@@ -10282,7 +10274,7 @@ static u8 bnx2x_84833_get_reset_gpios(struct bnx2x *bp,
 	return reset_gpios;
 }
 
-static int bnx2x_84833_hw_reset_phy(struct bnx2x_phy *phy,
+static void bnx2x_84833_hw_reset_phy(struct bnx2x_phy *phy,
 				struct link_params *params)
 {
 	struct bnx2x *bp = params->bp;
@@ -10311,8 +10303,6 @@ static int bnx2x_84833_hw_reset_phy(struct bnx2x_phy *phy,
 	udelay(10);
 	DP(NETIF_MSG_LINK, "84833 hw reset on pin values 0x%x\n",
 		reset_gpios);
-
-	return 0;
 }
 
 static int bnx2x_8483x_disable_eee(struct bnx2x_phy *phy,
@@ -10355,7 +10345,7 @@ static int bnx2x_8483x_enable_eee(struct bnx2x_phy *phy,
 }
 
 #define PHY84833_CONSTANT_LATENCY 1193
-static int bnx2x_848x3_config_init(struct bnx2x_phy *phy,
+static void bnx2x_848x3_config_init(struct bnx2x_phy *phy,
 				   struct link_params *params,
 				   struct link_vars *vars)
 {
@@ -10502,7 +10492,7 @@ static int bnx2x_848x3_config_init(struct bnx2x_phy *phy,
 		if (rc) {
 			DP(NETIF_MSG_LINK, "Failed to configure EEE timers\n");
 			bnx2x_8483x_disable_eee(phy, params, vars);
-			return rc;
+			return;
 		}
 
 		if ((phy->req_duplex == DUPLEX_FULL) &&
@@ -10514,7 +10504,7 @@ static int bnx2x_848x3_config_init(struct bnx2x_phy *phy,
 			rc = bnx2x_8483x_disable_eee(phy, params, vars);
 		if (rc) {
 			DP(NETIF_MSG_LINK, "Failed to set EEE advertisement\n");
-			return rc;
+			return;
 		}
 	} else {
 		vars->eee_status &= ~SHMEM_EEE_SUPPORTED_MASK;
@@ -10553,7 +10543,6 @@ static int bnx2x_848x3_config_init(struct bnx2x_phy *phy,
 					  MDIO_84833_TOP_CFG_XGPHY_STRAP1,
 					  (u16)~MDIO_84833_SUPER_ISOLATE);
 	}
-	return rc;
 }
 
 static u8 bnx2x_848xx_read_status(struct bnx2x_phy *phy,
@@ -11113,7 +11102,7 @@ static void bnx2x_54618se_specific_func(struct bnx2x_phy *phy,
 	}
 }
 
-static int bnx2x_54618se_config_init(struct bnx2x_phy *phy,
+static void bnx2x_54618se_config_init(struct bnx2x_phy *phy,
 					       struct link_params *params,
 					       struct link_vars *vars)
 {
@@ -11315,8 +11304,6 @@ static int bnx2x_54618se_config_init(struct bnx2x_phy *phy,
 
 	bnx2x_cl22_write(bp, phy,
 			MDIO_PMA_REG_CTRL, autoneg_val);
-
-	return 0;
 }
 
 
@@ -11540,7 +11527,7 @@ static void bnx2x_7101_config_loopback(struct bnx2x_phy *phy,
 			 MDIO_XS_DEVAD, MDIO_XS_SFX7101_XGXS_TEST1, 0x100);
 }
 
-static int bnx2x_7101_config_init(struct bnx2x_phy *phy,
+static void bnx2x_7101_config_init(struct bnx2x_phy *phy,
 				  struct link_params *params,
 				  struct link_vars *vars)
 {
@@ -11577,7 +11564,6 @@ static int bnx2x_7101_config_init(struct bnx2x_phy *phy,
 			MDIO_PMA_DEVAD, MDIO_PMA_REG_7101_VER2, &fw_ver2);
 	bnx2x_save_spirom_version(bp, params->port,
 				  (u32)(fw_ver1<<16 | fw_ver2), phy->ver_addr);
-	return 0;
 }
 
 static u8 bnx2x_7101_read_status(struct bnx2x_phy *phy,
@@ -11746,9 +11732,9 @@ static const struct bnx2x_phy phy_serdes = {
 	.speed_cap_mask	= 0,
 	.req_duplex	= 0,
 	.rsrv		= 0,
-	.config_init	= (config_init_t)bnx2x_xgxs_config_init,
-	.read_status	= (read_status_t)bnx2x_link_settings_status,
-	.link_reset	= (link_reset_t)bnx2x_int_link_reset,
+	.config_init	= bnx2x_xgxs_config_init,
+	.read_status	= bnx2x_link_settings_status,
+	.link_reset	= bnx2x_int_link_reset,
 	.config_loopback = (config_loopback_t)NULL,
 	.format_fw_ver	= (format_fw_ver_t)NULL,
 	.hw_reset	= (hw_reset_t)NULL,
@@ -11782,14 +11768,14 @@ static const struct bnx2x_phy phy_xgxs = {
 	.speed_cap_mask	= 0,
 	.req_duplex	= 0,
 	.rsrv		= 0,
-	.config_init	= (config_init_t)bnx2x_xgxs_config_init,
-	.read_status	= (read_status_t)bnx2x_link_settings_status,
-	.link_reset	= (link_reset_t)bnx2x_int_link_reset,
-	.config_loopback = (config_loopback_t)bnx2x_set_xgxs_loopback,
+	.config_init	= bnx2x_xgxs_config_init,
+	.read_status	= bnx2x_link_settings_status,
+	.link_reset	= bnx2x_int_link_reset,
+	.config_loopback = bnx2x_set_xgxs_loopback,
 	.format_fw_ver	= (format_fw_ver_t)NULL,
 	.hw_reset	= (hw_reset_t)NULL,
 	.set_link_led	= (set_link_led_t)NULL,
-	.phy_specific_func = (phy_specific_func_t)bnx2x_xgxs_specific_func
+	.phy_specific_func = bnx2x_xgxs_specific_func
 };
 static const struct bnx2x_phy phy_warpcore = {
 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT,
@@ -11820,12 +11806,12 @@ static const struct bnx2x_phy phy_warpcore = {
 	.speed_cap_mask	= 0,
 	/* req_duplex = */0,
 	/* rsrv = */0,
-	.config_init	= (config_init_t)bnx2x_warpcore_config_init,
-	.read_status	= (read_status_t)bnx2x_warpcore_read_status,
-	.link_reset	= (link_reset_t)bnx2x_warpcore_link_reset,
-	.config_loopback = (config_loopback_t)bnx2x_set_warpcore_loopback,
+	.config_init	= bnx2x_warpcore_config_init,
+	.read_status	= bnx2x_warpcore_read_status,
+	.link_reset	= bnx2x_warpcore_link_reset,
+	.config_loopback = bnx2x_set_warpcore_loopback,
 	.format_fw_ver	= (format_fw_ver_t)NULL,
-	.hw_reset	= (hw_reset_t)bnx2x_warpcore_hw_reset,
+	.hw_reset	= bnx2x_warpcore_hw_reset,
 	.set_link_led	= (set_link_led_t)NULL,
 	.phy_specific_func = (phy_specific_func_t)NULL
 };
@@ -11851,13 +11837,13 @@ static const struct bnx2x_phy phy_7101 = {
 	.speed_cap_mask	= 0,
 	.req_duplex	= 0,
 	.rsrv		= 0,
-	.config_init	= (config_init_t)bnx2x_7101_config_init,
-	.read_status	= (read_status_t)bnx2x_7101_read_status,
-	.link_reset	= (link_reset_t)bnx2x_common_ext_link_reset,
-	.config_loopback = (config_loopback_t)bnx2x_7101_config_loopback,
-	.format_fw_ver	= (format_fw_ver_t)bnx2x_7101_format_ver,
-	.hw_reset	= (hw_reset_t)bnx2x_7101_hw_reset,
-	.set_link_led	= (set_link_led_t)bnx2x_7101_set_link_led,
+	.config_init	= bnx2x_7101_config_init,
+	.read_status	= bnx2x_7101_read_status,
+	.link_reset	= bnx2x_common_ext_link_reset,
+	.config_loopback = bnx2x_7101_config_loopback,
+	.format_fw_ver	= bnx2x_7101_format_ver,
+	.hw_reset	= bnx2x_7101_hw_reset,
+	.set_link_led	= bnx2x_7101_set_link_led,
 	.phy_specific_func = (phy_specific_func_t)NULL
 };
 static const struct bnx2x_phy phy_8073 = {
@@ -11882,14 +11868,14 @@ static const struct bnx2x_phy phy_8073 = {
 	.speed_cap_mask	= 0,
 	.req_duplex	= 0,
 	.rsrv		= 0,
-	.config_init	= (config_init_t)bnx2x_8073_config_init,
-	.read_status	= (read_status_t)bnx2x_8073_read_status,
-	.link_reset	= (link_reset_t)bnx2x_8073_link_reset,
+	.config_init	= bnx2x_8073_config_init,
+	.read_status	= bnx2x_8073_read_status,
+	.link_reset	= bnx2x_8073_link_reset,
 	.config_loopback = (config_loopback_t)NULL,
-	.format_fw_ver	= (format_fw_ver_t)bnx2x_format_ver,
+	.format_fw_ver	= bnx2x_format_ver,
 	.hw_reset	= (hw_reset_t)NULL,
 	.set_link_led	= (set_link_led_t)NULL,
-	.phy_specific_func = (phy_specific_func_t)bnx2x_8073_specific_func
+	.phy_specific_func = bnx2x_8073_specific_func
 };
 static const struct bnx2x_phy phy_8705 = {
 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8705,
@@ -11910,11 +11896,11 @@ static const struct bnx2x_phy phy_8705 = {
 	.speed_cap_mask	= 0,
 	.req_duplex	= 0,
 	.rsrv		= 0,
-	.config_init	= (config_init_t)bnx2x_8705_config_init,
-	.read_status	= (read_status_t)bnx2x_8705_read_status,
-	.link_reset	= (link_reset_t)bnx2x_common_ext_link_reset,
+	.config_init	= bnx2x_8705_config_init,
+	.read_status	= bnx2x_8705_read_status,
+	.link_reset	= bnx2x_common_ext_link_reset,
 	.config_loopback = (config_loopback_t)NULL,
-	.format_fw_ver	= (format_fw_ver_t)bnx2x_null_format_ver,
+	.format_fw_ver	= bnx2x_null_format_ver,
 	.hw_reset	= (hw_reset_t)NULL,
 	.set_link_led	= (set_link_led_t)NULL,
 	.phy_specific_func = (phy_specific_func_t)NULL
@@ -11939,11 +11925,11 @@ static const struct bnx2x_phy phy_8706 = {
 	.speed_cap_mask	= 0,
 	.req_duplex	= 0,
 	.rsrv		= 0,
-	.config_init	= (config_init_t)bnx2x_8706_config_init,
-	.read_status	= (read_status_t)bnx2x_8706_read_status,
-	.link_reset	= (link_reset_t)bnx2x_common_ext_link_reset,
+	.config_init	= bnx2x_8706_config_init,
+	.read_status	= bnx2x_8706_read_status,
+	.link_reset	= bnx2x_common_ext_link_reset,
 	.config_loopback = (config_loopback_t)NULL,
-	.format_fw_ver	= (format_fw_ver_t)bnx2x_format_ver,
+	.format_fw_ver	= bnx2x_format_ver,
 	.hw_reset	= (hw_reset_t)NULL,
 	.set_link_led	= (set_link_led_t)NULL,
 	.phy_specific_func = (phy_specific_func_t)NULL
@@ -11971,11 +11957,11 @@ static const struct bnx2x_phy phy_8726 = {
 	.speed_cap_mask	= 0,
 	.req_duplex	= 0,
 	.rsrv		= 0,
-	.config_init	= (config_init_t)bnx2x_8726_config_init,
-	.read_status	= (read_status_t)bnx2x_8726_read_status,
-	.link_reset	= (link_reset_t)bnx2x_8726_link_reset,
-	.config_loopback = (config_loopback_t)bnx2x_8726_config_loopback,
-	.format_fw_ver	= (format_fw_ver_t)bnx2x_format_ver,
+	.config_init	= bnx2x_8726_config_init,
+	.read_status	= bnx2x_8726_read_status,
+	.link_reset	= bnx2x_8726_link_reset,
+	.config_loopback = bnx2x_8726_config_loopback,
+	.format_fw_ver	= bnx2x_format_ver,
 	.hw_reset	= (hw_reset_t)NULL,
 	.set_link_led	= (set_link_led_t)NULL,
 	.phy_specific_func = (phy_specific_func_t)NULL
@@ -12002,14 +11988,14 @@ static const struct bnx2x_phy phy_8727 = {
 	.speed_cap_mask	= 0,
 	.req_duplex	= 0,
 	.rsrv		= 0,
-	.config_init	= (config_init_t)bnx2x_8727_config_init,
-	.read_status	= (read_status_t)bnx2x_8727_read_status,
-	.link_reset	= (link_reset_t)bnx2x_8727_link_reset,
+	.config_init	= bnx2x_8727_config_init,
+	.read_status	= bnx2x_8727_read_status,
+	.link_reset	= bnx2x_8727_link_reset,
 	.config_loopback = (config_loopback_t)NULL,
-	.format_fw_ver	= (format_fw_ver_t)bnx2x_format_ver,
-	.hw_reset	= (hw_reset_t)bnx2x_8727_hw_reset,
-	.set_link_led	= (set_link_led_t)bnx2x_8727_set_link_led,
-	.phy_specific_func = (phy_specific_func_t)bnx2x_8727_specific_func
+	.format_fw_ver	= bnx2x_format_ver,
+	.hw_reset	= bnx2x_8727_hw_reset,
+	.set_link_led	= bnx2x_8727_set_link_led,
+	.phy_specific_func = bnx2x_8727_specific_func
 };
 static const struct bnx2x_phy phy_8481 = {
 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481,
@@ -12037,13 +12023,13 @@ static const struct bnx2x_phy phy_8481 = {
 	.speed_cap_mask	= 0,
 	.req_duplex	= 0,
 	.rsrv		= 0,
-	.config_init	= (config_init_t)bnx2x_8481_config_init,
-	.read_status	= (read_status_t)bnx2x_848xx_read_status,
-	.link_reset	= (link_reset_t)bnx2x_8481_link_reset,
+	.config_init	= bnx2x_8481_config_init,
+	.read_status	= bnx2x_848xx_read_status,
+	.link_reset	= bnx2x_8481_link_reset,
 	.config_loopback = (config_loopback_t)NULL,
-	.format_fw_ver	= (format_fw_ver_t)bnx2x_848xx_format_ver,
-	.hw_reset	= (hw_reset_t)bnx2x_8481_hw_reset,
-	.set_link_led	= (set_link_led_t)bnx2x_848xx_set_link_led,
+	.format_fw_ver	= bnx2x_848xx_format_ver,
+	.hw_reset	= bnx2x_8481_hw_reset,
+	.set_link_led	= bnx2x_848xx_set_link_led,
 	.phy_specific_func = (phy_specific_func_t)NULL
 };
 
@@ -12074,14 +12060,14 @@ static const struct bnx2x_phy phy_84823 = {
 	.speed_cap_mask	= 0,
 	.req_duplex	= 0,
 	.rsrv		= 0,
-	.config_init	= (config_init_t)bnx2x_848x3_config_init,
-	.read_status	= (read_status_t)bnx2x_848xx_read_status,
-	.link_reset	= (link_reset_t)bnx2x_848x3_link_reset,
+	.config_init	= bnx2x_848x3_config_init,
+	.read_status	= bnx2x_848xx_read_status,
+	.link_reset	= bnx2x_848x3_link_reset,
 	.config_loopback = (config_loopback_t)NULL,
-	.format_fw_ver	= (format_fw_ver_t)bnx2x_848xx_format_ver,
+	.format_fw_ver	= bnx2x_848xx_format_ver,
 	.hw_reset	= (hw_reset_t)NULL,
-	.set_link_led	= (set_link_led_t)bnx2x_848xx_set_link_led,
-	.phy_specific_func = (phy_specific_func_t)bnx2x_848xx_specific_func
+	.set_link_led	= bnx2x_848xx_set_link_led,
+	.phy_specific_func = bnx2x_848xx_specific_func
 };
 
 static const struct bnx2x_phy phy_84833 = {
@@ -12109,14 +12095,14 @@ static const struct bnx2x_phy phy_84833 = {
 	.speed_cap_mask	= 0,
 	.req_duplex	= 0,
 	.rsrv		= 0,
-	.config_init	= (config_init_t)bnx2x_848x3_config_init,
-	.read_status	= (read_status_t)bnx2x_848xx_read_status,
-	.link_reset	= (link_reset_t)bnx2x_848x3_link_reset,
+	.config_init	= bnx2x_848x3_config_init,
+	.read_status	= bnx2x_848xx_read_status,
+	.link_reset	= bnx2x_848x3_link_reset,
 	.config_loopback = (config_loopback_t)NULL,
-	.format_fw_ver	= (format_fw_ver_t)bnx2x_848xx_format_ver,
-	.hw_reset	= (hw_reset_t)bnx2x_84833_hw_reset_phy,
-	.set_link_led	= (set_link_led_t)bnx2x_848xx_set_link_led,
-	.phy_specific_func = (phy_specific_func_t)bnx2x_848xx_specific_func
+	.format_fw_ver	= bnx2x_848xx_format_ver,
+	.hw_reset	= bnx2x_84833_hw_reset_phy,
+	.set_link_led	= bnx2x_848xx_set_link_led,
+	.phy_specific_func = bnx2x_848xx_specific_func
 };
 
 static const struct bnx2x_phy phy_84834 = {
@@ -12143,14 +12129,14 @@ static const struct bnx2x_phy phy_84834 = {
 	.speed_cap_mask	= 0,
 	.req_duplex	= 0,
 	.rsrv		= 0,
-	.config_init	= (config_init_t)bnx2x_848x3_config_init,
-	.read_status	= (read_status_t)bnx2x_848xx_read_status,
-	.link_reset	= (link_reset_t)bnx2x_848x3_link_reset,
+	.config_init	= bnx2x_848x3_config_init,
+	.read_status	= bnx2x_848xx_read_status,
+	.link_reset	= bnx2x_848x3_link_reset,
 	.config_loopback = (config_loopback_t)NULL,
-	.format_fw_ver	= (format_fw_ver_t)bnx2x_848xx_format_ver,
-	.hw_reset	= (hw_reset_t)bnx2x_84833_hw_reset_phy,
-	.set_link_led	= (set_link_led_t)bnx2x_848xx_set_link_led,
-	.phy_specific_func = (phy_specific_func_t)bnx2x_848xx_specific_func
+	.format_fw_ver	= bnx2x_848xx_format_ver,
+	.hw_reset	= bnx2x_84833_hw_reset_phy,
+	.set_link_led	= bnx2x_848xx_set_link_led,
+	.phy_specific_func = bnx2x_848xx_specific_func
 };
 
 static const struct bnx2x_phy phy_84858 = {
@@ -12177,14 +12163,14 @@ static const struct bnx2x_phy phy_84858 = {
 	.speed_cap_mask	= 0,
 	.req_duplex	= 0,
 	.rsrv		= 0,
-	.config_init	= (config_init_t)bnx2x_848x3_config_init,
-	.read_status	= (read_status_t)bnx2x_848xx_read_status,
-	.link_reset	= (link_reset_t)bnx2x_848x3_link_reset,
+	.config_init	= bnx2x_848x3_config_init,
+	.read_status	= bnx2x_848xx_read_status,
+	.link_reset	= bnx2x_848x3_link_reset,
 	.config_loopback = (config_loopback_t)NULL,
-	.format_fw_ver	= (format_fw_ver_t)bnx2x_8485x_format_ver,
-	.hw_reset	= (hw_reset_t)bnx2x_84833_hw_reset_phy,
-	.set_link_led	= (set_link_led_t)bnx2x_848xx_set_link_led,
-	.phy_specific_func = (phy_specific_func_t)bnx2x_848xx_specific_func
+	.format_fw_ver	= bnx2x_8485x_format_ver,
+	.hw_reset	= bnx2x_84833_hw_reset_phy,
+	.set_link_led	= bnx2x_848xx_set_link_led,
+	.phy_specific_func = bnx2x_848xx_specific_func
 };
 
 static const struct bnx2x_phy phy_54618se = {
@@ -12211,14 +12197,14 @@ static const struct bnx2x_phy phy_54618se = {
 	.speed_cap_mask	= 0,
 	/* req_duplex = */0,
 	/* rsrv = */0,
-	.config_init	= (config_init_t)bnx2x_54618se_config_init,
-	.read_status	= (read_status_t)bnx2x_54618se_read_status,
-	.link_reset	= (link_reset_t)bnx2x_54618se_link_reset,
-	.config_loopback = (config_loopback_t)bnx2x_54618se_config_loopback,
+	.config_init	= bnx2x_54618se_config_init,
+	.read_status	= bnx2x_54618se_read_status,
+	.link_reset	= bnx2x_54618se_link_reset,
+	.config_loopback = bnx2x_54618se_config_loopback,
 	.format_fw_ver	= (format_fw_ver_t)NULL,
 	.hw_reset	= (hw_reset_t)NULL,
-	.set_link_led	= (set_link_led_t)bnx2x_5461x_set_link_led,
-	.phy_specific_func = (phy_specific_func_t)bnx2x_54618se_specific_func
+	.set_link_led	= bnx2x_5461x_set_link_led,
+	.phy_specific_func = bnx2x_54618se_specific_func
 };
 /*****************************************************************/
 /*                                                               */
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h
index b7d2511..a625bae 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h
@@ -126,7 +126,7 @@ struct link_vars;
 struct link_params;
 struct bnx2x_phy;
 
-typedef u8 (*config_init_t)(struct bnx2x_phy *phy, struct link_params *params,
+typedef void (*config_init_t)(struct bnx2x_phy *phy, struct link_params *params,
 			    struct link_vars *vars);
 typedef u8 (*read_status_t)(struct bnx2x_phy *phy, struct link_params *params,
 			    struct link_vars *vars);
@@ -134,7 +134,7 @@ typedef void (*link_reset_t)(struct bnx2x_phy *phy,
 			     struct link_params *params);
 typedef void (*config_loopback_t)(struct bnx2x_phy *phy,
 				  struct link_params *params);
-typedef u8 (*format_fw_ver_t)(u32 raw, u8 *str, u16 *len);
+typedef int (*format_fw_ver_t)(u32 raw, u8 *str, u16 *len);
 typedef void (*hw_reset_t)(struct bnx2x_phy *phy, struct link_params *params);
 typedef void (*set_link_led_t)(struct bnx2x_phy *phy,
 			       struct link_params *params, u8 mode);
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index d465bd7..85bff75 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -14201,7 +14201,7 @@ static int bnx2x_eeh_nic_unload(struct bnx2x *bp)
  * this device has been detected.
  */
 static pci_ers_result_t bnx2x_io_error_detected(struct pci_dev *pdev,
-						pci_channel_state_t state)
+						enum pci_channel_state state)
 {
 	struct net_device *dev = pci_get_drvdata(pdev);
 	struct bnx2x *bp = netdev_priv(dev);
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
index ff702a7..cb3ae16 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
@@ -2576,15 +2576,14 @@ int bnx2x_config_rx_mode(struct bnx2x *bp,
 	return rc;
 }
 
-void bnx2x_init_rx_mode_obj(struct bnx2x *bp,
-			    struct bnx2x_rx_mode_obj *o)
+void bnx2x_init_rx_mode_obj(struct bnx2x *bp)
 {
 	if (CHIP_IS_E1x(bp)) {
-		o->wait_comp      = bnx2x_empty_rx_mode_wait;
-		o->config_rx_mode = bnx2x_set_rx_mode_e1x;
+		bp->rx_mode_obj.wait_comp      = bnx2x_empty_rx_mode_wait;
+		bp->rx_mode_obj.config_rx_mode = bnx2x_set_rx_mode_e1x;
 	} else {
-		o->wait_comp      = bnx2x_wait_rx_mode_comp_e2;
-		o->config_rx_mode = bnx2x_set_rx_mode_e2;
+		bp->rx_mode_obj.wait_comp      = bnx2x_wait_rx_mode_comp_e2;
+		bp->rx_mode_obj.config_rx_mode = bnx2x_set_rx_mode_e2;
 	}
 }
 
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
index 4048fc5..333809f 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
@@ -1436,8 +1436,7 @@ int bnx2x_vlan_mac_move(struct bnx2x *bp,
 
 /********************* RX MODE ****************/
 
-void bnx2x_init_rx_mode_obj(struct bnx2x *bp,
-			    struct bnx2x_rx_mode_obj *o);
+void bnx2x_init_rx_mode_obj(struct bnx2x *bp);
 
 /**
  * bnx2x_config_rx_mode - Send and RX_MODE ramrod according to the provided parameters.
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index c39a7f5..f145270 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -6149,7 +6149,7 @@ init_err_free:
  * this device has been detected.
  */
 static pci_ers_result_t bnxt_io_error_detected(struct pci_dev *pdev,
-					       pci_channel_state_t state)
+					       enum pci_channel_state state)
 {
 	struct net_device *netdev = pci_get_drvdata(pdev);
 
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 3010080..49824f1 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -18124,7 +18124,7 @@ static void tg3_shutdown(struct pci_dev *pdev)
  * this device has been detected.
  */
 static pci_ers_result_t tg3_io_error_detected(struct pci_dev *pdev,
-					      pci_channel_state_t state)
+					      enum pci_channel_state state)
 {
 	struct net_device *netdev = pci_get_drvdata(pdev);
 	struct tg3 *tp = netdev_priv(netdev);
diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h
index 3b5e98e..52b3916 100644
--- a/drivers/net/ethernet/broadcom/tg3.h
+++ b/drivers/net/ethernet/broadcom/tg3.h
@@ -150,6 +150,7 @@
 #define  CHIPREV_ID_5750_A0		 0x4000
 #define  CHIPREV_ID_5750_A1		 0x4001
 #define  CHIPREV_ID_5750_A3		 0x4003
+#define  CHIPREV_ID_5750_C1		 0x4201
 #define  CHIPREV_ID_5750_C2		 0x4202
 #define  CHIPREV_ID_5752_A0_HW		 0x5000
 #define  CHIPREV_ID_5752_A0		 0x6000
diff --git a/drivers/net/ethernet/brocade/bna/bfa_cs.h b/drivers/net/ethernet/brocade/bna/bfa_cs.h
index 1d11d66..8f7a3cb 100644
--- a/drivers/net/ethernet/brocade/bna/bfa_cs.h
+++ b/drivers/net/ethernet/brocade/bna/bfa_cs.h
@@ -34,10 +34,19 @@ struct bfa_sm_table {
 	int		state;	/*!< state machine encoding	*/
 	char		*name;	/*!< state name for display	*/
 };
-#define BFA_SM(_sm)		((bfa_sm_t)(_sm))
+#define BFA_SM(_sm)		(_sm)
+
+#define bfa_sm_set_state(_sm, _state)	((_sm)->sm = (_state))
+#define bfa_sm_cmp_state(_sm, _state)	((_sm)->sm == (_state))
 
 /* State machine with entry actions. */
-typedef void (*bfa_fsm_t)(void *fsm, int event);
+struct bfa_ioc;
+enum ioc_event;
+struct bfa_iocpf;
+enum iocpf_event;
+
+typedef void (*bfa_fsm_ioc_t)(struct bfa_ioc *fsm, enum ioc_event event);
+typedef void (*bfa_fsm_iocpf_t)(struct bfa_iocpf *fsm, enum iocpf_event event);
 
 /* oc - object class eg. bfa_ioc
  * st - state, eg. reset
@@ -49,16 +58,37 @@ typedef void (*bfa_fsm_t)(void *fsm, int event);
 	static void oc ## _sm_ ## st ## _entry(otype * fsm)
 
 #define bfa_fsm_set_state(_fsm, _state) do {				\
-	(_fsm)->fsm = (bfa_fsm_t)(_state);				\
+	(_fsm)->fsm = (_state);						\
 	_state ## _entry(_fsm);						\
 } while (0)
 
 #define bfa_fsm_send_event(_fsm, _event)	((_fsm)->fsm((_fsm), (_event)))
-#define bfa_fsm_cmp_state(_fsm, _state)					\
-	((_fsm)->fsm == (bfa_fsm_t)(_state))
+#define bfa_fsm_cmp_state(_fsm, _state)		((_fsm)->fsm == (_state))
+
+/* For converting from state machine function to state encoding. */
+struct iocpf_sm_table {
+	bfa_fsm_iocpf_t	sm;	/*!< state machine function	*/
+	int		state;	/*!< state machine encoding	*/
+	char		*name;	/*!< state name for display	*/
+};
+struct ioc_sm_table {
+	bfa_fsm_ioc_t	sm;	/*!< state machine function	*/
+	int		state;	/*!< state machine encoding	*/
+	char		*name;	/*!< state name for display	*/
+};
+
+static inline int
+iocpf_sm_to_state(const struct iocpf_sm_table *smt, bfa_fsm_iocpf_t sm)
+{
+	int	i = 0;
+
+	while (smt[i].sm && smt[i].sm != sm)
+		i++;
+	return smt[i].state;
+}
 
 static inline int
-bfa_sm_to_state(const struct bfa_sm_table *smt, bfa_sm_t sm)
+ioc_sm_to_state(const struct ioc_sm_table *smt, bfa_fsm_ioc_t sm)
 {
 	int	i = 0;
 
diff --git a/drivers/net/ethernet/brocade/bna/bfa_ioc.c b/drivers/net/ethernet/brocade/bna/bfa_ioc.c
index 9e59663..3564807 100644
--- a/drivers/net/ethernet/brocade/bna/bfa_ioc.c
+++ b/drivers/net/ethernet/brocade/bna/bfa_ioc.c
@@ -122,7 +122,7 @@ bfa_fsm_state_decl(bfa_ioc, disabling, struct bfa_ioc, enum ioc_event);
 bfa_fsm_state_decl(bfa_ioc, disabled, struct bfa_ioc, enum ioc_event);
 bfa_fsm_state_decl(bfa_ioc, hwfail, struct bfa_ioc, enum ioc_event);
 
-static struct bfa_sm_table ioc_sm_table[] = {
+static struct ioc_sm_table ioc_sm_table[] = {
 	{BFA_SM(bfa_ioc_sm_uninit), BFA_IOC_UNINIT},
 	{BFA_SM(bfa_ioc_sm_reset), BFA_IOC_RESET},
 	{BFA_SM(bfa_ioc_sm_enabling), BFA_IOC_ENABLING},
@@ -191,7 +191,7 @@ bfa_fsm_state_decl(bfa_iocpf, disabling_sync, struct bfa_iocpf,
 						enum iocpf_event);
 bfa_fsm_state_decl(bfa_iocpf, disabled, struct bfa_iocpf, enum iocpf_event);
 
-static struct bfa_sm_table iocpf_sm_table[] = {
+static struct iocpf_sm_table iocpf_sm_table[] = {
 	{BFA_SM(bfa_iocpf_sm_reset), BFA_IOCPF_RESET},
 	{BFA_SM(bfa_iocpf_sm_fwcheck), BFA_IOCPF_FWMISMATCH},
 	{BFA_SM(bfa_iocpf_sm_mismatch), BFA_IOCPF_FWMISMATCH},
@@ -2862,12 +2862,12 @@ static enum bfa_ioc_state
 bfa_ioc_get_state(struct bfa_ioc *ioc)
 {
 	enum bfa_iocpf_state iocpf_st;
-	enum bfa_ioc_state ioc_st = bfa_sm_to_state(ioc_sm_table, ioc->fsm);
+	enum bfa_ioc_state ioc_st = ioc_sm_to_state(ioc_sm_table, ioc->fsm);
 
 	if (ioc_st == BFA_IOC_ENABLING ||
 		ioc_st == BFA_IOC_FAIL || ioc_st == BFA_IOC_INITFAIL) {
 
-		iocpf_st = bfa_sm_to_state(iocpf_sm_table, ioc->iocpf.fsm);
+		iocpf_st = iocpf_sm_to_state(iocpf_sm_table, ioc->iocpf.fsm);
 
 		switch (iocpf_st) {
 		case BFA_IOCPF_SEMWAIT:
@@ -2985,7 +2985,7 @@ bfa_nw_iocpf_timeout(struct bfa_ioc *ioc)
 {
 	enum bfa_iocpf_state iocpf_st;
 
-	iocpf_st = bfa_sm_to_state(iocpf_sm_table, ioc->iocpf.fsm);
+	iocpf_st = iocpf_sm_to_state(iocpf_sm_table, ioc->iocpf.fsm);
 
 	if (iocpf_st == BFA_IOCPF_HWINIT)
 		bfa_ioc_poll_fwinit(ioc);
diff --git a/drivers/net/ethernet/brocade/bna/bfa_ioc.h b/drivers/net/ethernet/brocade/bna/bfa_ioc.h
index 2c0b4c0..97873eb 100644
--- a/drivers/net/ethernet/brocade/bna/bfa_ioc.h
+++ b/drivers/net/ethernet/brocade/bna/bfa_ioc.h
@@ -156,7 +156,7 @@ struct bfa_ioc_notify {
 } while (0)
 
 struct bfa_iocpf {
-	bfa_fsm_t		fsm;
+	bfa_fsm_iocpf_t		fsm;
 	struct bfa_ioc		*ioc;
 	bool			fw_mismatch_notified;
 	bool			auto_recover;
@@ -164,7 +164,7 @@ struct bfa_iocpf {
 };
 
 struct bfa_ioc {
-	bfa_fsm_t		fsm;
+	bfa_fsm_ioc_t		fsm;
 	struct bfa		*bfa;
 	struct bfa_pcidev	pcidev;
 	struct timer_list	ioc_timer;
diff --git a/drivers/net/ethernet/brocade/bna/bfa_msgq.h b/drivers/net/ethernet/brocade/bna/bfa_msgq.h
index 66bc8b5..bf64466 100644
--- a/drivers/net/ethernet/brocade/bna/bfa_msgq.h
+++ b/drivers/net/ethernet/brocade/bna/bfa_msgq.h
@@ -63,8 +63,10 @@ enum bfa_msgq_cmdq_flags {
 	BFA_MSGQ_CMDQ_F_DB_UPDATE	= 1,
 };
 
+enum cmdq_event;
+
 struct bfa_msgq_cmdq {
-	bfa_fsm_t			fsm;
+	void (*fsm)(struct bfa_msgq_cmdq *, enum cmdq_event);
 	enum bfa_msgq_cmdq_flags flags;
 
 	u16			producer_index;
@@ -89,8 +91,10 @@ enum bfa_msgq_rspq_flags {
 
 typedef void (*bfa_msgq_mcfunc_t)(void *cbarg, struct bfi_msgq_mhdr *mhdr);
 
+enum rspq_event;
+
 struct bfa_msgq_rspq {
-	bfa_fsm_t			fsm;
+	void (*fsm)(struct bfa_msgq_rspq *, enum rspq_event);
 	enum bfa_msgq_rspq_flags flags;
 
 	u16			producer_index;
diff --git a/drivers/net/ethernet/brocade/bna/bna_enet.c b/drivers/net/ethernet/brocade/bna/bna_enet.c
index 4e5c387..0791dab 100644
--- a/drivers/net/ethernet/brocade/bna/bna_enet.c
+++ b/drivers/net/ethernet/brocade/bna/bna_enet.c
@@ -1265,7 +1265,7 @@ bna_enet_mtu_get(struct bna_enet *enet)
 void
 bna_enet_enable(struct bna_enet *enet)
 {
-	if (enet->fsm != (bfa_sm_t)bna_enet_sm_stopped)
+	if (enet->fsm != bna_enet_sm_stopped)
 		return;
 
 	enet->flags |= BNA_ENET_F_ENABLED;
@@ -1676,10 +1676,10 @@ bna_cb_ioceth_reset(void *arg)
 }
 
 static struct bfa_ioc_cbfn bna_ioceth_cbfn = {
-	bna_cb_ioceth_enable,
-	bna_cb_ioceth_disable,
-	bna_cb_ioceth_hbfail,
-	bna_cb_ioceth_reset
+	.enable_cbfn = bna_cb_ioceth_enable,
+	.disable_cbfn = bna_cb_ioceth_disable,
+	.hbfail_cbfn = bna_cb_ioceth_hbfail,
+	.reset_cbfn = bna_cb_ioceth_reset
 };
 
 static void bna_attr_init(struct bna_ioceth *ioceth)
@@ -1759,12 +1759,12 @@ bna_ioceth_uninit(struct bna_ioceth *ioceth)
 void
 bna_ioceth_enable(struct bna_ioceth *ioceth)
 {
-	if (ioceth->fsm == (bfa_fsm_t)bna_ioceth_sm_ready) {
+	if (ioceth->fsm == bna_ioceth_sm_ready) {
 		bnad_cb_ioceth_ready(ioceth->bna->bnad);
 		return;
 	}
 
-	if (ioceth->fsm == (bfa_fsm_t)bna_ioceth_sm_stopped)
+	if (ioceth->fsm == bna_ioceth_sm_stopped)
 		bfa_fsm_send_event(ioceth, IOCETH_E_ENABLE);
 }
 
diff --git a/drivers/net/ethernet/brocade/bna/bna_tx_rx.c b/drivers/net/ethernet/brocade/bna/bna_tx_rx.c
index 95bc470..c12be9f 100644
--- a/drivers/net/ethernet/brocade/bna/bna_tx_rx.c
+++ b/drivers/net/ethernet/brocade/bna/bna_tx_rx.c
@@ -1964,7 +1964,7 @@ static void
 bna_rx_stop(struct bna_rx *rx)
 {
 	rx->rx_flags &= ~BNA_RX_F_ENET_STARTED;
-	if (rx->fsm == (bfa_fsm_t) bna_rx_sm_stopped)
+	if (rx->fsm == bna_rx_sm_stopped)
 		bna_rx_mod_cb_rx_stopped(&rx->bna->rx_mod, rx);
 	else {
 		rx->stop_cbfn = bna_rx_mod_cb_rx_stopped;
@@ -2543,7 +2543,7 @@ bna_rx_destroy(struct bna_rx *rx)
 void
 bna_rx_enable(struct bna_rx *rx)
 {
-	if (rx->fsm != (bfa_sm_t)bna_rx_sm_stopped)
+	if (rx->fsm != bna_rx_sm_stopped)
 		return;
 
 	rx->rx_flags |= BNA_RX_F_ENABLED;
@@ -3531,7 +3531,7 @@ bna_tx_destroy(struct bna_tx *tx)
 void
 bna_tx_enable(struct bna_tx *tx)
 {
-	if (tx->fsm != (bfa_sm_t)bna_tx_sm_stopped)
+	if (tx->fsm != bna_tx_sm_stopped)
 		return;
 
 	tx->flags |= BNA_TX_F_ENABLED;
diff --git a/drivers/net/ethernet/brocade/bna/bna_types.h b/drivers/net/ethernet/brocade/bna/bna_types.h
index c438d03..4653f43 100644
--- a/drivers/net/ethernet/brocade/bna/bna_types.h
+++ b/drivers/net/ethernet/brocade/bna/bna_types.h
@@ -320,8 +320,10 @@ struct bna_attr {
 
 /* IOCEth */
 
+enum bna_ioceth_event;
+
 struct bna_ioceth {
-	bfa_fsm_t		fsm;
+	void (*fsm)(struct bna_ioceth *, enum bna_ioceth_event);
 	struct bfa_ioc ioc;
 
 	struct bna_attr attr;
@@ -342,8 +344,10 @@ struct bna_pause_config {
 	enum bna_status rx_pause;
 };
 
+enum bna_enet_event;
+
 struct bna_enet {
-	bfa_fsm_t		fsm;
+	void (*fsm)(struct bna_enet *, enum bna_enet_event);
 	enum bna_enet_flags flags;
 
 	enum bna_enet_type type;
@@ -368,8 +372,10 @@ struct bna_enet {
 
 /* Ethport */
 
+enum bna_ethport_event;
+
 struct bna_ethport {
-	bfa_fsm_t		fsm;
+	void (*fsm)(struct bna_ethport *, enum bna_ethport_event);
 	enum bna_ethport_flags flags;
 
 	enum bna_link_status link_status;
@@ -462,13 +468,15 @@ struct bna_txq {
 };
 
 /* Tx object */
+enum bna_tx_event;
+
 struct bna_tx {
 	/* This should be the first one */
 	struct list_head			qe;
 	int			rid;
 	int			hw_id;
 
-	bfa_fsm_t		fsm;
+	void (*fsm)(struct bna_tx *, enum bna_tx_event);
 	enum bna_tx_flags flags;
 
 	enum bna_tx_type type;
@@ -706,8 +714,10 @@ struct bna_rxp {
 };
 
 /* RxF structure (hardware Rx Function) */
+enum bna_rxf_event;
+
 struct bna_rxf {
-	bfa_fsm_t		fsm;
+	void (*fsm)(struct bna_rxf *, enum bna_rxf_event);
 
 	struct bfa_msgq_cmd_entry msgq_cmd;
 	union {
@@ -777,13 +787,15 @@ struct bna_rxf {
 };
 
 /* Rx object */
+enum bna_rx_event;
+
 struct bna_rx {
 	/* This should be the first one */
 	struct list_head			qe;
 	int			rid;
 	int			hw_id;
 
-	bfa_fsm_t		fsm;
+	void (*fsm)(struct bna_rx *, enum bna_rx_event);
 
 	enum bna_rx_type type;
 
diff --git a/drivers/net/ethernet/brocade/bna/bnad.c b/drivers/net/ethernet/brocade/bna/bnad.c
index 771cc26..c681a90 100644
--- a/drivers/net/ethernet/brocade/bna/bnad.c
+++ b/drivers/net/ethernet/brocade/bna/bnad.c
@@ -1118,8 +1118,9 @@ bnad_cb_tx_resume(struct bnad *bnad, struct bna_tx *tx)
  * Free all TxQs buffers and then notify TX_E_CLEANUP_DONE to Tx fsm.
  */
 static void
-bnad_tx_cleanup(struct delayed_work *work)
+bnad_tx_cleanup(struct work_struct *_work)
 {
+	struct delayed_work *work = (struct delayed_work *)_work;
 	struct bnad_tx_info *tx_info =
 		container_of(work, struct bnad_tx_info, tx_cleanup_work);
 	struct bnad *bnad = NULL;
@@ -1197,7 +1198,7 @@ bnad_cb_rx_stall(struct bnad *bnad, struct bna_rx *rx)
  * Free all RxQs buffers and then notify RX_E_CLEANUP_DONE to Rx fsm.
  */
 static void
-bnad_rx_cleanup(void *work)
+bnad_rx_cleanup(struct work_struct *work)
 {
 	struct bnad_rx_info *rx_info =
 		container_of(work, struct bnad_rx_info, rx_cleanup_work);
@@ -2021,8 +2022,7 @@ bnad_setup_tx(struct bnad *bnad, u32 tx_id)
 	}
 	tx_info->tx = tx;
 
-	INIT_DELAYED_WORK(&tx_info->tx_cleanup_work,
-			(work_func_t)bnad_tx_cleanup);
+	INIT_DELAYED_WORK(&tx_info->tx_cleanup_work, bnad_tx_cleanup);
 
 	/* Register ISR for the Tx object */
 	if (intr_info->intr_type == BNA_INTR_T_MSIX) {
@@ -2278,8 +2278,7 @@ bnad_setup_rx(struct bnad *bnad, u32 rx_id)
 	rx_info->rx = rx;
 	spin_unlock_irqrestore(&bnad->bna_lock, flags);
 
-	INIT_WORK(&rx_info->rx_cleanup_work,
-			(work_func_t)(bnad_rx_cleanup));
+	INIT_WORK(&rx_info->rx_cleanup_work, bnad_rx_cleanup);
 
 	/*
 	 * Init NAPI, so that state is set to NAPI_STATE_SCHED,
diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c
index a63551d0a..f460dd6 100644
--- a/drivers/net/ethernet/cadence/macb.c
+++ b/drivers/net/ethernet/cadence/macb.c
@@ -1329,7 +1329,7 @@ dma_error:
 	return 0;
 }
 
-static int macb_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t macb_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	u16 queue_index = skb_get_queue_mapping(skb);
 	struct macb *bp = netdev_priv(dev);
@@ -2628,7 +2628,7 @@ static int at91ether_close(struct net_device *dev)
 }
 
 /* Transmit packet */
-static int at91ether_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t at91ether_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct macb *lp = netdev_priv(dev);
 
diff --git a/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c b/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c
index 245c063..74ed9c9 100644
--- a/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c
+++ b/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c
@@ -264,9 +264,9 @@ static void octnet_mdio_resp_callback(struct octeon_device *oct,
 	if (status) {
 		dev_err(&oct->pci_dev->dev, "MIDO instruction failed. Status: %llx\n",
 			CVM_CAST64(status));
-		ACCESS_ONCE(mdio_cmd_ctx->cond) = -1;
+		ACCESS_ONCE_RW(mdio_cmd_ctx->cond) = -1;
 	} else {
-		ACCESS_ONCE(mdio_cmd_ctx->cond) = 1;
+		ACCESS_ONCE_RW(mdio_cmd_ctx->cond) = 1;
 	}
 	wake_up_interruptible(&mdio_cmd_ctx->wc);
 }
@@ -297,7 +297,7 @@ octnet_mdio45_access(struct lio *lio, int op, int loc, int *value)
 	mdio_cmd_rsp = (struct oct_mdio_cmd_resp *)sc->virtrptr;
 	mdio_cmd = (struct oct_mdio_cmd *)sc->virtdptr;
 
-	ACCESS_ONCE(mdio_cmd_ctx->cond) = 0;
+	ACCESS_ONCE_RW(mdio_cmd_ctx->cond) = 0;
 	mdio_cmd_ctx->octeon_id = lio_get_device_id(oct_dev);
 	mdio_cmd->op = op;
 	mdio_cmd->mdio_addr = loc;
diff --git a/drivers/net/ethernet/cavium/liquidio/lio_main.c b/drivers/net/ethernet/cavium/liquidio/lio_main.c
index 34d269c..69e1ac2 100644
--- a/drivers/net/ethernet/cavium/liquidio/lio_main.c
+++ b/drivers/net/ethernet/cavium/liquidio/lio_main.c
@@ -475,7 +475,7 @@ static void stop_pci_io(struct octeon_device *oct)
  * this device has been detected.
  */
 static pci_ers_result_t liquidio_pcie_error_detected(struct pci_dev *pdev,
-						     pci_channel_state_t state)
+						     enum pci_channel_state state)
 {
 	struct octeon_device *oct = pci_get_drvdata(pdev);
 
@@ -1724,7 +1724,7 @@ static void if_cfg_callback(struct octeon_device *oct,
 	if (resp->status)
 		dev_err(&oct->pci_dev->dev, "nic if cfg instruction failed. Status: %llx\n",
 			CVM_CAST64(resp->status));
-	ACCESS_ONCE(ctx->cond) = 1;
+	ACCESS_ONCE_RW(ctx->cond) = 1;
 
 	/* This barrier is required to be sure that the response has been
 	 * written fully before waking up the handler
@@ -2662,7 +2662,7 @@ static inline u32 get_ipv6_5tuple_tag(struct sk_buff *skb)
  * @returns whether the packet was transmitted to the device okay or not
  *             (NETDEV_TX_OK or NETDEV_TX_BUSY)
  */
-static int liquidio_xmit(struct sk_buff *skb, struct net_device *netdev)
+static netdev_tx_t liquidio_xmit(struct sk_buff *skb, struct net_device *netdev)
 {
 	struct lio *lio;
 	struct octnet_buf_free_info *finfo;
@@ -3174,7 +3174,7 @@ static int setup_nic_devices(struct octeon_device *octeon_dev)
 		dev_dbg(&octeon_dev->pci_dev->dev,
 			"requesting config for interface %d, iqs %d, oqs %d\n",
 			i, num_iqueues, num_oqueues);
-		ACCESS_ONCE(ctx->cond) = 0;
+		ACCESS_ONCE_RW(ctx->cond) = 0;
 		ctx->octeon_id = lio_get_device_id(octeon_dev);
 		init_waitqueue_head(&ctx->wc);
 
@@ -3237,8 +3237,11 @@ static int setup_nic_devices(struct octeon_device *octeon_dev)
 		props = &octeon_dev->props[i];
 		props->netdev = netdev;
 
-		if (num_iqueues > 1)
-			lionetdevops.ndo_select_queue = select_q;
+		if (num_iqueues > 1) {
+			pax_open_kernel();
+			const_cast(lionetdevops.ndo_select_queue) = select_q;
+			pax_close_kernel();
+		}
 
 		/* Associate the routines that will handle different
 		 * netdev tasks.
diff --git a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c
index 43da891..8fbfb54 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c
@@ -2997,7 +2997,7 @@ void t3_fatal_err(struct adapter *adapter)
  * this device has been detected.
  */
 static pci_ers_result_t t3_io_error_detected(struct pci_dev *pdev,
-					     pci_channel_state_t state)
+					     enum pci_channel_state state)
 {
 	struct adapter *adapter = pci_get_drvdata(pdev);
 
diff --git a/drivers/net/ethernet/chelsio/cxgb3/l2t.h b/drivers/net/ethernet/chelsio/cxgb3/l2t.h
index 8cffcdf..aadf043 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/l2t.h
+++ b/drivers/net/ethernet/chelsio/cxgb3/l2t.h
@@ -87,7 +87,7 @@ typedef void (*arp_failure_handler_func)(struct t3cdev * dev,
  */
 struct l2t_skb_cb {
 	arp_failure_handler_func arp_failure_handler;
-};
+} __no_const;
 
 #define L2T_SKB_CB(skb) ((struct l2t_skb_cb *)(skb)->cb)
 
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index d1e3f09..23cfbef 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -4177,7 +4177,7 @@ bye:
 /* EEH callbacks */
 
 static pci_ers_result_t eeh_err_detected(struct pci_dev *pdev,
-					 pci_channel_state_t state)
+					 enum pci_channel_state state)
 {
 	int i;
 	struct adapter *adap = pci_get_drvdata(pdev);
diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/adapter.h b/drivers/net/ethernet/chelsio/cxgb4vf/adapter.h
index 4a707c3..de12401 100644
--- a/drivers/net/ethernet/chelsio/cxgb4vf/adapter.h
+++ b/drivers/net/ethernet/chelsio/cxgb4vf/adapter.h
@@ -546,7 +546,7 @@ int t4vf_sge_alloc_eth_txq(struct adapter *, struct sge_eth_txq *,
 			   unsigned int);
 void t4vf_free_sge_resources(struct adapter *);
 
-int t4vf_eth_xmit(struct sk_buff *, struct net_device *);
+netdev_tx_t t4vf_eth_xmit(struct sk_buff *, struct net_device *);
 int t4vf_ethrx_handler(struct sge_rspq *, const __be64 *,
 		       const struct pkt_gl *);
 
diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/sge.c b/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
index 1ccd282..93f6dd4 100644
--- a/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
@@ -1159,7 +1159,7 @@ static inline void txq_advance(struct sge_txq *tq, unsigned int n)
  *
  *	Add a packet to an SGE Ethernet TX queue.  Runs with softirqs disabled.
  */
-int t4vf_eth_xmit(struct sk_buff *skb, struct net_device *dev)
+netdev_tx_t t4vf_eth_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	u32 wr_mid;
 	u64 cntrl, *end;
diff --git a/drivers/net/ethernet/davicom/dm9000.c b/drivers/net/ethernet/davicom/dm9000.c
index 48d9194..68ced25 100644
--- a/drivers/net/ethernet/davicom/dm9000.c
+++ b/drivers/net/ethernet/davicom/dm9000.c
@@ -1021,7 +1021,7 @@ static void dm9000_send_packet(struct net_device *dev,
  *  Hardware start transmission.
  *  Send a packet to media from the upper layer.
  */
-static int
+static netdev_tx_t
 dm9000_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	unsigned long flags;
diff --git a/drivers/net/ethernet/dec/tulip/de4x5.c b/drivers/net/ethernet/dec/tulip/de4x5.c
index 3acde3b..284086c 100644
--- a/drivers/net/ethernet/dec/tulip/de4x5.c
+++ b/drivers/net/ethernet/dec/tulip/de4x5.c
@@ -912,7 +912,7 @@ static int     de4x5_init(struct net_device *dev);
 static int     de4x5_sw_reset(struct net_device *dev);
 static int     de4x5_rx(struct net_device *dev);
 static int     de4x5_tx(struct net_device *dev);
-static void    de4x5_ast(struct net_device *dev);
+static void    de4x5_ast(unsigned long _dev);
 static int     de4x5_txur(struct net_device *dev);
 static int     de4x5_rx_ovfc(struct net_device *dev);
 
@@ -1149,7 +1149,7 @@ de4x5_hw_init(struct net_device *dev, u_long iobase, struct device *gendev)
 	lp->gendev = gendev;
 	spin_lock_init(&lp->lock);
 	init_timer(&lp->timer);
-	lp->timer.function = (void (*)(unsigned long))de4x5_ast;
+	lp->timer.function = de4x5_ast;
 	lp->timer.data = (unsigned long)dev;
 	de4x5_parse_params(dev);
 
@@ -1740,8 +1740,9 @@ de4x5_tx(struct net_device *dev)
 }
 
 static void
-de4x5_ast(struct net_device *dev)
+de4x5_ast(unsigned long _dev)
 {
+	struct net_device *dev = (struct net_device *)_dev;
 	struct de4x5_private *lp = netdev_priv(dev);
 	int next_tick = DE4X5_AUTOSENSE_MS;
 	int dt;
@@ -2368,7 +2369,7 @@ autoconf_media(struct net_device *dev)
 	lp->media = INIT;
 	lp->tcount = 0;
 
-	de4x5_ast(dev);
+	de4x5_ast((unsigned long)dev);
 
 	return lp->media;
 }
@@ -5373,7 +5374,7 @@ de4x5_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 	for (i=0; i<ETH_ALEN; i++) {
 	    tmp.addr[i] = dev->dev_addr[i];
 	}
-	if (copy_to_user(ioc->data, tmp.addr, ioc->len)) return -EFAULT;
+	if (ioc->len > sizeof tmp.addr || copy_to_user(ioc->data, tmp.addr, ioc->len)) return -EFAULT;
 	break;
 
     case DE4X5_SET_HWADDR:           /* Set the hardware address */
@@ -5413,7 +5414,7 @@ de4x5_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 	spin_lock_irqsave(&lp->lock, flags);
 	memcpy(&statbuf, &lp->pktStats, ioc->len);
 	spin_unlock_irqrestore(&lp->lock, flags);
-	if (copy_to_user(ioc->data, &statbuf, ioc->len))
+	if (ioc->len > sizeof statbuf || copy_to_user(ioc->data, &statbuf, ioc->len))
 		return -EFAULT;
 	break;
     }
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 5366864..5aab985 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -556,7 +556,7 @@ static void accumulate_16bit_val(u32 *acc, u16 val)
 
 	if (wrapped)
 		newacc += 65536;
-	ACCESS_ONCE(*acc) = newacc;
+	ACCESS_ONCE_RW(*acc) = newacc;
 }
 
 static void populate_erx_stats(struct be_adapter *adapter,
@@ -5467,7 +5467,7 @@ static void be_shutdown(struct pci_dev *pdev)
 }
 
 static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev,
-					    pci_channel_state_t state)
+					    enum pci_channel_state state)
 {
 	struct be_adapter *adapter = pci_get_drvdata(pdev);
 
diff --git a/drivers/net/ethernet/faraday/ftgmac100.c b/drivers/net/ethernet/faraday/ftgmac100.c
index 84384e1..9643fe6 100644
--- a/drivers/net/ethernet/faraday/ftgmac100.c
+++ b/drivers/net/ethernet/faraday/ftgmac100.c
@@ -30,6 +30,8 @@
 #include <linux/netdevice.h>
 #include <linux/phy.h>
 #include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/irqreturn.h>
 #include <net/ip.h>
 
 #include "ftgmac100.h"
@@ -1120,7 +1122,7 @@ static int ftgmac100_stop(struct net_device *netdev)
 	return 0;
 }
 
-static int ftgmac100_hard_start_xmit(struct sk_buff *skb,
+static netdev_tx_t ftgmac100_hard_start_xmit(struct sk_buff *skb,
 				     struct net_device *netdev)
 {
 	struct ftgmac100 *priv = netdev_priv(netdev);
diff --git a/drivers/net/ethernet/faraday/ftmac100.c b/drivers/net/ethernet/faraday/ftmac100.c
index dce5f7b..222e709 100644
--- a/drivers/net/ethernet/faraday/ftmac100.c
+++ b/drivers/net/ethernet/faraday/ftmac100.c
@@ -31,6 +31,8 @@
 #include <linux/module.h>
 #include <linux/netdevice.h>
 #include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/irqreturn.h>
 
 #include "ftmac100.h"
 
@@ -1009,7 +1011,7 @@ static int ftmac100_stop(struct net_device *netdev)
 	return 0;
 }
 
-static int ftmac100_hard_start_xmit(struct sk_buff *skb, struct net_device *netdev)
+static netdev_tx_t ftmac100_hard_start_xmit(struct sk_buff *skb, struct net_device *netdev)
 {
 	struct ftmac100 *priv = netdev_priv(netdev);
 	dma_addr_t map;
diff --git a/drivers/net/ethernet/freescale/fec_mpc52xx.c b/drivers/net/ethernet/freescale/fec_mpc52xx.c
index 25553ee..0b3cdea 100644
--- a/drivers/net/ethernet/freescale/fec_mpc52xx.c
+++ b/drivers/net/ethernet/freescale/fec_mpc52xx.c
@@ -306,7 +306,7 @@ static int mpc52xx_fec_close(struct net_device *dev)
  * invariant will hold if you make sure that the netif_*_queue()
  * calls are done at the proper times.
  */
-static int mpc52xx_fec_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t mpc52xx_fec_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct mpc52xx_fec_priv *priv = netdev_priv(dev);
 	struct bcom_fec_bd *bd;
diff --git a/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c b/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c
index 48a9c17..0745505 100644
--- a/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c
+++ b/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c
@@ -509,7 +509,7 @@ static struct sk_buff *tx_skb_align_workaround(struct net_device *dev,
 }
 #endif
 
-static int fs_enet_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t fs_enet_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
 	cbd_t __iomem *bdp;
diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index d2f917a..ed4d7f5 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -112,7 +112,7 @@
 const char gfar_driver_version[] = "2.0";
 
 static int gfar_enet_open(struct net_device *dev);
-static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev);
+static netdev_tx_t gfar_start_xmit(struct sk_buff *skb, struct net_device *dev);
 static void gfar_reset_task(struct work_struct *work);
 static void gfar_timeout(struct net_device *dev);
 static int gfar_close(struct net_device *dev);
@@ -2315,7 +2315,7 @@ static inline bool gfar_csum_errata_76(struct gfar_private *priv,
 /* This is called by the kernel when a frame is ready for transmission.
  * It is pointed to by the dev->hard_start_xmit function pointer
  */
-static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t gfar_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct gfar_private *priv = netdev_priv(dev);
 	struct gfar_priv_tx_q *tx_queue = NULL;
diff --git a/drivers/net/ethernet/freescale/ucc_geth.c b/drivers/net/ethernet/freescale/ucc_geth.c
index 5bf1ade..4e74666 100644
--- a/drivers/net/ethernet/freescale/ucc_geth.c
+++ b/drivers/net/ethernet/freescale/ucc_geth.c
@@ -3085,7 +3085,7 @@ static int ucc_geth_startup(struct ucc_geth_private *ugeth)
 
 /* This is called by the kernel when a frame is ready for transmission. */
 /* It is pointed to by the dev->hard_start_xmit function pointer */
-static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct ucc_geth_private *ugeth = netdev_priv(dev);
 #ifdef CONFIG_UGETH_TX_ON_DEMAND
diff --git a/drivers/net/ethernet/hisilicon/hip04_eth.c b/drivers/net/ethernet/hisilicon/hip04_eth.c
index 0c4afe9..d888314 100644
--- a/drivers/net/ethernet/hisilicon/hip04_eth.c
+++ b/drivers/net/ethernet/hisilicon/hip04_eth.c
@@ -422,7 +422,7 @@ static void hip04_start_tx_timer(struct hip04_priv *priv)
 			       ns, HRTIMER_MODE_REL);
 }
 
-static int hip04_mac_start_xmit(struct sk_buff *skb, struct net_device *ndev)
+static netdev_tx_t hip04_mac_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 {
 	struct hip04_priv *priv = netdev_priv(ndev);
 	struct net_device_stats *stats = &ndev->stats;
diff --git a/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c b/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c
index e51892d..3e645f4 100644
--- a/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c
+++ b/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c
@@ -601,7 +601,7 @@ static irqreturn_t hix5hd2_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static int hix5hd2_net_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t hix5hd2_net_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct hix5hd2_priv *priv = netdev_priv(dev);
 	struct hix5hd2_desc *desc;
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c b/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
index a1cb461..05164e3 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
@@ -845,16 +845,18 @@ int hns_dsaf_ae_init(struct dsaf_device *dsaf_dev)
 	struct hnae_ae_dev *ae_dev = &dsaf_dev->ae_dev;
 	static atomic_t id = ATOMIC_INIT(-1);
 
+	pax_open_kernel();
 	switch (dsaf_dev->dsaf_ver) {
 	case AE_VERSION_1:
-		hns_dsaf_ops.toggle_ring_irq = hns_ae_toggle_ring_irq;
+		const_cast(hns_dsaf_ops.toggle_ring_irq) = hns_ae_toggle_ring_irq;
 		break;
 	case AE_VERSION_2:
-		hns_dsaf_ops.toggle_ring_irq = hns_aev2_toggle_ring_irq;
+		const_cast(hns_dsaf_ops.toggle_ring_irq) = hns_aev2_toggle_ring_irq;
 		break;
 	default:
 		break;
 	}
+	pax_close_kernel();
 
 	snprintf(ae_dev->name, AE_NAME_SIZE, "%s%d", DSAF_DEVICE_NAME,
 		 (int)atomic_inc_return(&id));
diff --git a/drivers/net/ethernet/i825xx/lib82596.c b/drivers/net/ethernet/i825xx/lib82596.c
index c984998..187fa04 100644
--- a/drivers/net/ethernet/i825xx/lib82596.c
+++ b/drivers/net/ethernet/i825xx/lib82596.c
@@ -347,7 +347,7 @@ static const char init_setup[] =
 	0x7f /*  *multi IA */ };
 
 static int i596_open(struct net_device *dev);
-static int i596_start_xmit(struct sk_buff *skb, struct net_device *dev);
+static netdev_tx_t i596_start_xmit(struct sk_buff *skb, struct net_device *dev);
 static irqreturn_t i596_interrupt(int irq, void *dev_id);
 static int i596_close(struct net_device *dev);
 static void i596_add_cmd(struct net_device *dev, struct i596_cmd *cmd);
@@ -965,7 +965,7 @@ static void i596_tx_timeout (struct net_device *dev)
 }
 
 
-static int i596_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t i596_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct i596_private *lp = netdev_priv(dev);
 	struct tx_cmd *tx_cmd;
diff --git a/drivers/net/ethernet/ibm/ehea/ehea_main.c b/drivers/net/ethernet/ibm/ehea/ehea_main.c
index 2a0dc12..d590cfd 100644
--- a/drivers/net/ethernet/ibm/ehea/ehea_main.c
+++ b/drivers/net/ethernet/ibm/ehea/ehea_main.c
@@ -2048,7 +2048,7 @@ static void ehea_xmit3(struct sk_buff *skb, struct net_device *dev,
 	dev_consume_skb_any(skb);
 }
 
-static int ehea_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t ehea_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct ehea_port *port = netdev_priv(dev);
 	struct ehea_swqe *swqe;
diff --git a/drivers/net/ethernet/ibm/emac/core.c b/drivers/net/ethernet/ibm/emac/core.c
index 5d7db6c..1592aba 100644
--- a/drivers/net/ethernet/ibm/emac/core.c
+++ b/drivers/net/ethernet/ibm/emac/core.c
@@ -1385,7 +1385,7 @@ static inline int emac_xmit_finish(struct emac_instance *dev, int len)
 }
 
 /* Tx lock BH */
-static int emac_start_xmit(struct sk_buff *skb, struct net_device *ndev)
+static netdev_tx_t emac_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 {
 	struct emac_instance *dev = netdev_priv(ndev);
 	unsigned int len = skb->len;
@@ -1443,7 +1443,7 @@ static inline int emac_xmit_split(struct emac_instance *dev, int slot,
 }
 
 /* Tx lock BH disabled (SG version for TAH equipped EMACs) */
-static int emac_start_xmit_sg(struct sk_buff *skb, struct net_device *ndev)
+static netdev_tx_t emac_start_xmit_sg(struct sk_buff *skb, struct net_device *ndev)
 {
 	struct emac_instance *dev = netdev_priv(ndev);
 	int nr_frags = skb_shinfo(skb)->nr_frags;
diff --git a/drivers/net/ethernet/intel/e100.c b/drivers/net/ethernet/intel/e100.c
index 068789e..f4928f0 100644
--- a/drivers/net/ethernet/intel/e100.c
+++ b/drivers/net/ethernet/intel/e100.c
@@ -3106,7 +3106,7 @@ static void e100_shutdown(struct pci_dev *pdev)
  * @pdev: Pointer to PCI device
  * @state: The current pci connection state
  */
-static pci_ers_result_t e100_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
+static pci_ers_result_t e100_io_error_detected(struct pci_dev *pdev, enum pci_channel_state state)
 {
 	struct net_device *netdev = pci_get_drvdata(pdev);
 	struct nic *nic = netdev_priv(netdev);
diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c
index ae90d4f..666cb68 100644
--- a/drivers/net/ethernet/intel/e1000/e1000_main.c
+++ b/drivers/net/ethernet/intel/e1000/e1000_main.c
@@ -5272,7 +5272,7 @@ static void e1000_netpoll(struct net_device *netdev)
  * this device has been detected.
  */
 static pci_ers_result_t e1000_io_error_detected(struct pci_dev *pdev,
-						pci_channel_state_t state)
+							enum pci_channel_state state)
 {
 	struct net_device *netdev = pci_get_drvdata(pdev);
 	struct e1000_adapter *adapter = netdev_priv(netdev);
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index 9b4ec13..c0cd7ab 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -6734,7 +6734,7 @@ static void e1000_netpoll(struct net_device *netdev)
  * this device has been detected.
  */
 static pci_ers_result_t e1000_io_error_detected(struct pci_dev *pdev,
-						pci_channel_state_t state)
+						enum pci_channel_state state)
 {
 	struct net_device *netdev = pci_get_drvdata(pdev);
 	struct e1000_adapter *adapter = netdev_priv(netdev);
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c
index 4eb7a6f..da3c328 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c
@@ -2249,7 +2249,7 @@ static int fm10k_suspend(struct pci_dev *pdev,
  * this device has been detected.
  */
 static pci_ers_result_t fm10k_io_error_detected(struct pci_dev *pdev,
-						pci_channel_state_t state)
+						enum pci_channel_state state)
 {
 	struct fm10k_intfc *interface = pci_get_drvdata(pdev);
 	struct net_device *netdev = interface->netdev;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_ptp.c b/drivers/net/ethernet/intel/i40e/i40e_ptp.c
index 565ca7c..dcdf764 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ptp.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ptp.c
@@ -418,7 +418,7 @@ void i40e_ptp_set_increment(struct i40e_pf *pf)
 	wr32(hw, I40E_PRTTSYN_INC_H, incval >> 32);
 
 	/* Update the base adjustement value. */
-	ACCESS_ONCE(pf->ptp_base_adj) = incval;
+	ACCESS_ONCE_RW(pf->ptp_base_adj) = incval;
 	smp_mb(); /* Force the above update. */
 }
 
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index 55a1405c..b722e63 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -7750,7 +7750,7 @@ static void igb_netpoll(struct net_device *netdev)
  *  this device has been detected.
  **/
 static pci_ers_result_t igb_io_error_detected(struct pci_dev *pdev,
-					      pci_channel_state_t state)
+					      enum pci_channel_state state)
 {
 	struct net_device *netdev = pci_get_drvdata(pdev);
 	struct igb_adapter *adapter = netdev_priv(netdev);
diff --git a/drivers/net/ethernet/intel/igbvf/netdev.c b/drivers/net/ethernet/intel/igbvf/netdev.c
index c124422..5d471ad 100644
--- a/drivers/net/ethernet/intel/igbvf/netdev.c
+++ b/drivers/net/ethernet/intel/igbvf/netdev.c
@@ -2523,7 +2523,7 @@ static void igbvf_netpoll(struct net_device *netdev)
  * this device has been detected.
  */
 static pci_ers_result_t igbvf_io_error_detected(struct pci_dev *pdev,
-						pci_channel_state_t state)
+						enum pci_channel_state state)
 {
 	struct net_device *netdev = pci_get_drvdata(pdev);
 	struct igbvf_adapter *adapter = netdev_priv(netdev);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 7df3fe2..88f9610 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -9551,7 +9551,7 @@ static void ixgbe_remove(struct pci_dev *pdev)
  * this device has been detected.
  */
 static pci_ers_result_t ixgbe_io_error_detected(struct pci_dev *pdev,
-						pci_channel_state_t state)
+						enum pci_channel_state state)
 {
 	struct ixgbe_adapter *adapter = pci_get_drvdata(pdev);
 	struct net_device *netdev = adapter->netdev;
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
index ef1504d..e1c3402 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
@@ -1119,7 +1119,7 @@ void ixgbe_ptp_start_cyclecounter(struct ixgbe_adapter *adapter)
 	}
 
 	/* update the base incval used to calculate frequency adjustment */
-	ACCESS_ONCE(adapter->base_incval) = incval;
+	ACCESS_ONCE_RW(adapter->base_incval) = incval;
 	smp_mb();
 
 	/* need lock to prevent incorrect read while modifying cyclecounter */
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index b0edae9..c068ee7 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -3607,7 +3607,7 @@ static int ixgbevf_maybe_stop_tx(struct ixgbevf_ring *tx_ring, int size)
 	return __ixgbevf_maybe_stop_tx(tx_ring, size);
 }
 
-static int ixgbevf_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
+static netdev_tx_t ixgbevf_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
 {
 	struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 	struct ixgbevf_tx_buffer *first;
@@ -4148,7 +4148,7 @@ static void ixgbevf_remove(struct pci_dev *pdev)
  * this device has been detected.
  **/
 static pci_ers_result_t ixgbevf_io_error_detected(struct pci_dev *pdev,
-						  pci_channel_state_t state)
+						  enum pci_channel_state state)
 {
 	struct net_device *netdev = pci_get_drvdata(pdev);
 	struct ixgbevf_adapter *adapter = netdev_priv(netdev);
diff --git a/drivers/net/ethernet/marvell/pxa168_eth.c b/drivers/net/ethernet/marvell/pxa168_eth.c
index c442f6a..f41971a 100644
--- a/drivers/net/ethernet/marvell/pxa168_eth.c
+++ b/drivers/net/ethernet/marvell/pxa168_eth.c
@@ -1272,7 +1272,7 @@ static int pxa168_rx_poll(struct napi_struct *napi, int budget)
 	return work_done;
 }
 
-static int pxa168_eth_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t pxa168_eth_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct pxa168_eth_private *pep = netdev_priv(dev);
 	struct net_device_stats *stats = &dev->stats;
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_tx.c b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
index a386f04..532dac2 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
@@ -482,8 +482,8 @@ static bool mlx4_en_process_tx_cq(struct net_device *dev,
 	wmb();
 
 	/* we want to dirty this cache line once */
-	ACCESS_ONCE(ring->last_nr_txbb) = last_nr_txbb;
-	ACCESS_ONCE(ring->cons) = ring_cons + txbbs_skipped;
+	ACCESS_ONCE_RW(ring->last_nr_txbb) = last_nr_txbb;
+	ACCESS_ONCE_RW(ring->cons) = ring_cons + txbbs_skipped;
 
 	netdev_tx_completed_queue(ring->tx_queue, packets, bytes);
 
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index 12c77a7..d3814dd 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -4056,7 +4056,7 @@ static const struct pci_device_id mlx4_pci_table[] = {
 MODULE_DEVICE_TABLE(pci, mlx4_pci_table);
 
 static pci_ers_result_t mlx4_pci_err_detected(struct pci_dev *pdev,
-					      pci_channel_state_t state)
+					      enum pci_channel_state state)
 {
 	struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index 6892746f..bd445ae 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -1349,7 +1349,7 @@ static void remove_one(struct pci_dev *pdev)
 }
 
 static pci_ers_result_t mlx5_pci_err_detected(struct pci_dev *pdev,
-					      pci_channel_state_t state)
+					      enum pci_channel_state state)
 {
 	struct mlx5_core_dev *dev = pci_get_drvdata(pdev);
 	struct mlx5_priv *priv = &dev->priv;
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index 668b2f4..add3ac0 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -3228,7 +3228,7 @@ static int mlxsw_sp_netdevice_event(struct notifier_block *unused,
 	return NOTIFY_DONE;
 }
 
-static struct notifier_block mlxsw_sp_netdevice_nb __read_mostly = {
+static struct notifier_block mlxsw_sp_netdevice_nb = {
 	.notifier_call = mlxsw_sp_netdevice_event,
 };
 
diff --git a/drivers/net/ethernet/micrel/ks8695net.c b/drivers/net/ethernet/micrel/ks8695net.c
index a8522d8..2126286 100644
--- a/drivers/net/ethernet/micrel/ks8695net.c
+++ b/drivers/net/ethernet/micrel/ks8695net.c
@@ -1156,7 +1156,7 @@ ks8695_timeout(struct net_device *ndev)
  *	sk_buff and adds it to the TX ring. It then kicks the TX DMA
  *	engine to ensure transmission begins.
  */
-static int
+static netdev_tx_t
 ks8695_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 {
 	struct ks8695_priv *ksp = netdev_priv(ndev);
diff --git a/drivers/net/ethernet/micrel/ks8851_mll.c b/drivers/net/ethernet/micrel/ks8851_mll.c
index 2fc5cd5..6c6108a 100644
--- a/drivers/net/ethernet/micrel/ks8851_mll.c
+++ b/drivers/net/ethernet/micrel/ks8851_mll.c
@@ -1020,7 +1020,7 @@ static void ks_write_qmu(struct ks_net *ks, u8 *pdata, u16 len)
  * spin_lock_irqsave is required because tx and rx should be mutual exclusive.
  * So while tx is in-progress, prevent IRQ interrupt from happenning.
  */
-static int ks_start_xmit(struct sk_buff *skb, struct net_device *netdev)
+static netdev_tx_t ks_start_xmit(struct sk_buff *skb, struct net_device *netdev)
 {
 	int retv = NETDEV_TX_OK;
 	struct ks_net *ks = netdev_priv(netdev);
diff --git a/drivers/net/ethernet/moxa/moxart_ether.c b/drivers/net/ethernet/moxa/moxart_ether.c
index 3e67f45..f1e1504 100644
--- a/drivers/net/ethernet/moxa/moxart_ether.c
+++ b/drivers/net/ethernet/moxa/moxart_ether.c
@@ -319,7 +319,7 @@ static irqreturn_t moxart_mac_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static int moxart_mac_start_xmit(struct sk_buff *skb, struct net_device *ndev)
+static netdev_tx_t moxart_mac_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 {
 	struct moxart_mac_priv_t *priv = netdev_priv(ndev);
 	void *desc;
diff --git a/drivers/net/ethernet/neterion/s2io.c b/drivers/net/ethernet/neterion/s2io.c
index 9ba9758..9c7c77f 100644
--- a/drivers/net/ethernet/neterion/s2io.c
+++ b/drivers/net/ethernet/neterion/s2io.c
@@ -8563,7 +8563,7 @@ static void lro_append_pkt(struct s2io_nic *sp, struct lro *lro,
  * this device has been detected.
  */
 static pci_ers_result_t s2io_io_error_detected(struct pci_dev *pdev,
-					       pci_channel_state_t state)
+					       enum pci_channel_state state)
 {
 	struct net_device *netdev = pci_get_drvdata(pdev);
 	struct s2io_nic *sp = netdev_priv(netdev);
diff --git a/drivers/net/ethernet/neterion/vxge/vxge-config.c b/drivers/net/ethernet/neterion/vxge/vxge-config.c
index 6223930..975033d 100644
--- a/drivers/net/ethernet/neterion/vxge/vxge-config.c
+++ b/drivers/net/ethernet/neterion/vxge/vxge-config.c
@@ -3457,7 +3457,10 @@ __vxge_hw_fifo_create(struct __vxge_hw_vpath_handle *vp,
 	struct __vxge_hw_fifo *fifo;
 	struct vxge_hw_fifo_config *config;
 	u32 txdl_size, txdl_per_memblock;
-	struct vxge_hw_mempool_cbs fifo_mp_callback;
+	static struct vxge_hw_mempool_cbs fifo_mp_callback = {
+		.item_func_alloc = __vxge_hw_fifo_mempool_item_alloc,
+	};
+
 	struct __vxge_hw_virtualpath *vpath;
 
 	if ((vp == NULL) || (attr == NULL)) {
@@ -3540,8 +3543,6 @@ __vxge_hw_fifo_create(struct __vxge_hw_vpath_handle *vp,
 		goto exit;
 	}
 
-	fifo_mp_callback.item_func_alloc = __vxge_hw_fifo_mempool_item_alloc;
-
 	fifo->mempool =
 		__vxge_hw_mempool_create(vpath->hldev,
 			fifo->config->memblock_size,
diff --git a/drivers/net/ethernet/neterion/vxge/vxge-main.c b/drivers/net/ethernet/neterion/vxge/vxge-main.c
index e0993eb..d8d7f50 100644
--- a/drivers/net/ethernet/neterion/vxge/vxge-main.c
+++ b/drivers/net/ethernet/neterion/vxge/vxge-main.c
@@ -4043,7 +4043,7 @@ static int vxge_pm_resume(struct pci_dev *pdev)
  * this device has been detected.
  */
 static pci_ers_result_t vxge_io_error_detected(struct pci_dev *pdev,
-						pci_channel_state_t state)
+						enum pci_channel_state state)
 {
 	struct __vxge_hw_device *hldev = pci_get_drvdata(pdev);
 	struct net_device *netdev = hldev->ndev;
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
index 43c618b..bb6e368 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
@@ -630,7 +630,7 @@ static void nfp_net_tx_csum(struct nfp_net *nn, struct nfp_net_r_vector *r_vec,
  *
  * Return: NETDEV_TX_OK on success.
  */
-static int nfp_net_tx(struct sk_buff *skb, struct net_device *netdev)
+static netdev_tx_t nfp_net_tx(struct sk_buff *skb, struct net_device *netdev)
 {
 	struct nfp_net *nn = netdev_priv(netdev);
 	const struct skb_frag_struct *frag;
diff --git a/drivers/net/ethernet/netx-eth.c b/drivers/net/ethernet/netx-eth.c
index 9fbc302..f87f84a 100644
--- a/drivers/net/ethernet/netx-eth.c
+++ b/drivers/net/ethernet/netx-eth.c
@@ -107,7 +107,7 @@ static void netx_eth_set_multicast_list(struct net_device *ndev)
 	/* implement me */
 }
 
-static int
+static netdev_tx_t
 netx_eth_hard_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 {
 	struct netx_eth_priv *priv = netdev_priv(ndev);
diff --git a/drivers/net/ethernet/nuvoton/w90p910_ether.c b/drivers/net/ethernet/nuvoton/w90p910_ether.c
index 52d9a94..cc230d4 100644
--- a/drivers/net/ethernet/nuvoton/w90p910_ether.c
+++ b/drivers/net/ethernet/nuvoton/w90p910_ether.c
@@ -633,7 +633,7 @@ static int w90p910_send_frame(struct net_device *dev,
 	return 0;
 }
 
-static int w90p910_ether_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t w90p910_ether_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct w90p910_ether *ether = netdev_priv(dev);
 
diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c
index 9b0d7f4..c29155f 100644
--- a/drivers/net/ethernet/nvidia/forcedeth.c
+++ b/drivers/net/ethernet/nvidia/forcedeth.c
@@ -357,8 +357,8 @@ struct ring_desc {
 };
 
 struct ring_desc_ex {
-	__le32 bufhigh;
-	__le32 buflow;
+	__le32 bufhigh __intentional_overflow(0);
+	__le32 buflow __intentional_overflow(0);
 	__le32 txvlan;
 	__le32 flaglen;
 };
diff --git a/drivers/net/ethernet/nxp/lpc_eth.c b/drivers/net/ethernet/nxp/lpc_eth.c
index b1ce7aa..c082651 100644
--- a/drivers/net/ethernet/nxp/lpc_eth.c
+++ b/drivers/net/ethernet/nxp/lpc_eth.c
@@ -1063,7 +1063,7 @@ static int lpc_eth_close(struct net_device *ndev)
 	return 0;
 }
 
-static int lpc_eth_hard_start_xmit(struct sk_buff *skb, struct net_device *ndev)
+static netdev_tx_t lpc_eth_hard_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 {
 	struct netdata_local *pldat = netdev_priv(ndev);
 	u32 len, txidx;
diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
index 3b98b263b..13d2129 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
@@ -2131,7 +2131,7 @@ static int pch_gbe_stop(struct net_device *netdev)
  *	- NETDEV_TX_OK:   Normal end
  *	- NETDEV_TX_BUSY: Error end
  */
-static int pch_gbe_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
+static netdev_tx_t pch_gbe_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
 {
 	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
 	struct pch_gbe_tx_ring *tx_ring = adapter->tx_ring;
@@ -2447,7 +2447,7 @@ static const struct net_device_ops pch_gbe_netdev_ops = {
 };
 
 static pci_ers_result_t pch_gbe_io_error_detected(struct pci_dev *pdev,
-						pci_channel_state_t state)
+						enum pci_channel_state state)
 {
 	struct net_device *netdev = pci_get_drvdata(pdev);
 	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
index 9c6eed9..a3ef643 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
@@ -1757,7 +1757,7 @@ err_out:
 }
 
 static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
-						pci_channel_state_t state)
+						enum pci_channel_state state)
 {
 	struct netxen_adapter *adapter = pci_get_drvdata(pdev);
 
diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.c b/drivers/net/ethernet/qlogic/qed/qed_mcp.c
index b89c9a8..06b18ff 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_mcp.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.c
@@ -938,9 +938,9 @@ qed_mcp_send_drv_version(struct qed_hwfn *p_hwfn,
 
 	p_drv_version = &union_data.drv_version;
 	p_drv_version->version = p_ver->version;
-	for (i = 0; i < MCP_DRV_VER_STR_SIZE - 1; i += 4) {
-		val = cpu_to_be32(p_ver->name[i]);
-		*(u32 *)&p_drv_version->name[i * sizeof(u32)] = val;
+	for (i = 0; i < MCP_DRV_VER_STR_SIZE - 4; i += 4) {
+		val = cpu_to_be32(*(u32 *)&p_ver->name[i]);
+		*(u32 *)&p_drv_version->name[i] = val;
 	}
 
 	memset(&mb_params, 0, sizeof(mb_params));
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
index bf89216..b08442a 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
@@ -2324,7 +2324,9 @@ int qlcnic_83xx_configure_opmode(struct qlcnic_adapter *adapter)
 		max_tx_rings = QLCNIC_MAX_VNIC_TX_RINGS;
 	} else if (ret == QLC_83XX_DEFAULT_OPMODE) {
 		ahw->nic_mode = QLCNIC_DEFAULT_MODE;
-		adapter->nic_ops->init_driver = qlcnic_83xx_init_default_driver;
+		pax_open_kernel();
+		const_cast(adapter->nic_ops->init_driver) = qlcnic_83xx_init_default_driver;
+		pax_close_kernel();
 		ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
 		max_sds_rings = QLCNIC_MAX_SDS_RINGS;
 		max_tx_rings = QLCNIC_MAX_TX_RINGS;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
index 3490675..cf148ea 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
@@ -207,17 +207,23 @@ int qlcnic_83xx_config_vnic_opmode(struct qlcnic_adapter *adapter)
 	case QLCNIC_NON_PRIV_FUNC:
 		ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
 		ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
-		nic_ops->init_driver = qlcnic_83xx_init_non_privileged_vnic;
+		pax_open_kernel();
+		const_cast(nic_ops->init_driver) = qlcnic_83xx_init_non_privileged_vnic;
+		pax_close_kernel();
 		break;
 	case QLCNIC_PRIV_FUNC:
 		ahw->op_mode = QLCNIC_PRIV_FUNC;
 		ahw->idc.state_entry = qlcnic_83xx_idc_vnic_pf_entry;
-		nic_ops->init_driver = qlcnic_83xx_init_privileged_vnic;
+		pax_open_kernel();
+		const_cast(nic_ops->init_driver) = qlcnic_83xx_init_privileged_vnic;
+		pax_close_kernel();
 		break;
 	case QLCNIC_MGMT_FUNC:
 		ahw->op_mode = QLCNIC_MGMT_FUNC;
 		ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
-		nic_ops->init_driver = qlcnic_83xx_init_mgmt_vnic;
+		pax_open_kernel();
+		const_cast(nic_ops->init_driver) = qlcnic_83xx_init_mgmt_vnic;
+		pax_close_kernel();
 		break;
 	default:
 		dev_err(&adapter->pdev->dev, "Invalid Virtual NIC opmode\n");
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index 1205f6f..4b7c75b 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -3970,7 +3970,7 @@ static void qlcnic_82xx_io_resume(struct pci_dev *pdev)
 }
 
 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
-						 pci_channel_state_t state)
+						 enum pci_channel_state state)
 {
 	struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
 	struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c
index 0844b7c..afa10a1 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c
@@ -1285,7 +1285,7 @@ flash_temp:
 int qlcnic_dump_fw(struct qlcnic_adapter *adapter)
 {
 	struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
-	static const struct qlcnic_dump_operations *fw_dump_ops;
+	const struct qlcnic_dump_operations *fw_dump_ops;
 	struct qlcnic_83xx_dump_template_hdr *hdr_83xx;
 	u32 entry_offset, dump, no_entries, buf_offset = 0;
 	int i, k, ops_cnt, ops_index, dump_size = 0;
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 94f08f1..501c50d 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -798,22 +798,22 @@ struct rtl8169_private {
 	struct mdio_ops {
 		void (*write)(struct rtl8169_private *, int, int);
 		int (*read)(struct rtl8169_private *, int);
-	} mdio_ops;
+	} __no_const mdio_ops;
 
 	struct pll_power_ops {
 		void (*down)(struct rtl8169_private *);
 		void (*up)(struct rtl8169_private *);
-	} pll_power_ops;
+	} __no_const pll_power_ops;
 
 	struct jumbo_ops {
 		void (*enable)(struct rtl8169_private *);
 		void (*disable)(struct rtl8169_private *);
-	} jumbo_ops;
+	} __no_const jumbo_ops;
 
 	struct csi_ops {
 		void (*write)(struct rtl8169_private *, int, int);
 		u32 (*read)(struct rtl8169_private *, int);
-	} csi_ops;
+	} __no_const csi_ops;
 
 	int (*set_speed)(struct net_device *, u8 aneg, u16 sp, u8 dpx, u32 adv);
 	int (*get_settings)(struct net_device *, struct ethtool_cmd *);
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index ceea74c..fa02088 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -2305,7 +2305,7 @@ static void sh_eth_tx_timeout(struct net_device *ndev)
 }
 
 /* Packet transmit function */
-static int sh_eth_start_xmit(struct sk_buff *skb, struct net_device *ndev)
+static netdev_tx_t sh_eth_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 {
 	struct sh_eth_private *mdp = netdev_priv(ndev);
 	struct sh_eth_txdesc *txdesc;
diff --git a/drivers/net/ethernet/rocker/rocker_main.c b/drivers/net/ethernet/rocker/rocker_main.c
index 28b775e..110ef62 100644
--- a/drivers/net/ethernet/rocker/rocker_main.c
+++ b/drivers/net/ethernet/rocker/rocker_main.c
@@ -2833,7 +2833,7 @@ out:
 	return NOTIFY_DONE;
 }
 
-static struct notifier_block rocker_netdevice_nb __read_mostly = {
+static struct notifier_block rocker_netdevice_nb = {
 	.notifier_call = rocker_netdevice_event,
 };
 
@@ -2867,7 +2867,7 @@ static int rocker_netevent_event(struct notifier_block *unused,
 	return NOTIFY_DONE;
 }
 
-static struct notifier_block rocker_netevent_nb __read_mostly = {
+static struct notifier_block rocker_netevent_nb = {
 	.notifier_call = rocker_netevent_event,
 };
 
diff --git a/drivers/net/ethernet/seeq/sgiseeq.c b/drivers/net/ethernet/seeq/sgiseeq.c
index ca73366..8debe39 100644
--- a/drivers/net/ethernet/seeq/sgiseeq.c
+++ b/drivers/net/ethernet/seeq/sgiseeq.c
@@ -578,7 +578,7 @@ static inline int sgiseeq_reset(struct net_device *dev)
 	return 0;
 }
 
-static int sgiseeq_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t sgiseeq_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct sgiseeq_private *sp = netdev_priv(dev);
 	struct hpc3_ethregs *hregs = sp->hregs;
diff --git a/drivers/net/ethernet/sfc/ptp.c b/drivers/net/ethernet/sfc/ptp.c
index c771e0a..bbb368d 100644
--- a/drivers/net/ethernet/sfc/ptp.c
+++ b/drivers/net/ethernet/sfc/ptp.c
@@ -832,7 +832,7 @@ static int efx_ptp_synchronize(struct efx_nic *efx, unsigned int num_readings)
 		       ptp->start.dma_addr);
 
 	/* Clear flag that signals MC ready */
-	ACCESS_ONCE(*start) = 0;
+	ACCESS_ONCE_RW(*start) = 0;
 	rc = efx_mcdi_rpc_start(efx, MC_CMD_PTP, synch_buf,
 				MC_CMD_PTP_IN_SYNCHRONIZE_LEN);
 	EFX_BUG_ON_PARANOID(rc);
diff --git a/drivers/net/ethernet/sfc/selftest.c b/drivers/net/ethernet/sfc/selftest.c
index 9d78830..74fc649 100644
--- a/drivers/net/ethernet/sfc/selftest.c
+++ b/drivers/net/ethernet/sfc/selftest.c
@@ -82,8 +82,8 @@ struct efx_loopback_state {
 	int packet_count;
 	struct sk_buff **skbs;
 	bool offload_csum;
-	atomic_t rx_good;
-	atomic_t rx_bad;
+	atomic_unchecked_t rx_good;
+	atomic_unchecked_t rx_bad;
 	struct efx_loopback_payload payload;
 };
 
@@ -349,12 +349,12 @@ void efx_loopback_rx_packet(struct efx_nic *efx,
 	netif_vdbg(efx, drv, efx->net_dev,
 		   "got loopback RX in %s loopback test\n", LOOPBACK_MODE(efx));
 
-	atomic_inc(&state->rx_good);
+	atomic_inc_unchecked(&state->rx_good);
 	return;
 
  err:
 #ifdef DEBUG
-	if (atomic_read(&state->rx_bad) == 0) {
+	if (atomic_read_unchecked(&state->rx_bad) == 0) {
 		netif_err(efx, drv, efx->net_dev, "received packet:\n");
 		print_hex_dump(KERN_ERR, "", DUMP_PREFIX_OFFSET, 0x10, 1,
 			       buf_ptr, pkt_len, 0);
@@ -363,7 +363,7 @@ void efx_loopback_rx_packet(struct efx_nic *efx,
 			       &state->payload, sizeof(state->payload), 0);
 	}
 #endif
-	atomic_inc(&state->rx_bad);
+	atomic_inc_unchecked(&state->rx_bad);
 }
 
 /* Initialise an efx_selftest_state for a new iteration */
@@ -397,8 +397,8 @@ static void efx_iterate_state(struct efx_nic *efx)
 	memcpy(&payload->msg, payload_msg, sizeof(payload_msg));
 
 	/* Fill out remaining state members */
-	atomic_set(&state->rx_good, 0);
-	atomic_set(&state->rx_bad, 0);
+	atomic_set_unchecked(&state->rx_good, 0);
+	atomic_set_unchecked(&state->rx_bad, 0);
 	smp_wmb();
 }
 
@@ -456,7 +456,7 @@ static int efx_poll_loopback(struct efx_nic *efx)
 {
 	struct efx_loopback_state *state = efx->loopback_selftest;
 
-	return atomic_read(&state->rx_good) == state->packet_count;
+	return atomic_read_unchecked(&state->rx_good) == state->packet_count;
 }
 
 static int efx_end_loopback(struct efx_tx_queue *tx_queue,
@@ -482,8 +482,8 @@ static int efx_end_loopback(struct efx_tx_queue *tx_queue,
 	netif_tx_unlock_bh(efx->net_dev);
 
 	/* Check TX completion and received packet counts */
-	rx_good = atomic_read(&state->rx_good);
-	rx_bad = atomic_read(&state->rx_bad);
+	rx_good = atomic_read_unchecked(&state->rx_good);
+	rx_bad = atomic_read_unchecked(&state->rx_bad);
 	if (tx_done != state->packet_count) {
 		/* Don't free the skbs; they will be picked up on TX
 		 * overflow or channel teardown.
diff --git a/drivers/net/ethernet/sgi/ioc3-eth.c b/drivers/net/ethernet/sgi/ioc3-eth.c
index 7a254da..0693a2b4 100644
--- a/drivers/net/ethernet/sgi/ioc3-eth.c
+++ b/drivers/net/ethernet/sgi/ioc3-eth.c
@@ -103,7 +103,7 @@ static inline struct net_device *priv_netdev(struct ioc3_private *dev)
 
 static int ioc3_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
 static void ioc3_set_multicast_list(struct net_device *dev);
-static int ioc3_start_xmit(struct sk_buff *skb, struct net_device *dev);
+static netdev_tx_t ioc3_start_xmit(struct sk_buff *skb, struct net_device *dev);
 static void ioc3_timeout(struct net_device *dev);
 static inline unsigned int ioc3_hash(const unsigned char *addr);
 static inline void ioc3_stop(struct ioc3_private *ip);
@@ -1397,7 +1397,7 @@ static struct pci_driver ioc3_driver = {
 	.remove		= ioc3_remove_one,
 };
 
-static int ioc3_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t ioc3_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	unsigned long data;
 	struct ioc3_private *ip = netdev_priv(dev);
diff --git a/drivers/net/ethernet/smsc/smc911x.c b/drivers/net/ethernet/smsc/smc911x.c
index a733868..7fc73e1 100644
--- a/drivers/net/ethernet/smsc/smc911x.c
+++ b/drivers/net/ethernet/smsc/smc911x.c
@@ -514,7 +514,7 @@ static void smc911x_hardware_send_pkt(struct net_device *dev)
  * now, or set the card to generates an interrupt when ready
  * for the packet.
  */
-static int smc911x_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t smc911x_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct smc911x_local *lp = netdev_priv(dev);
 	unsigned int free;
diff --git a/drivers/net/ethernet/smsc/smc91x.c b/drivers/net/ethernet/smsc/smc91x.c
index c5ed27c..bea1ce5 100644
--- a/drivers/net/ethernet/smsc/smc91x.c
+++ b/drivers/net/ethernet/smsc/smc91x.c
@@ -637,7 +637,7 @@ done:	if (!THROTTLE_TX_PKTS)
  * now, or set the card to generates an interrupt when ready
  * for the packet.
  */
-static int smc_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t smc_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct smc_local *lp = netdev_priv(dev);
 	void __iomem *ioaddr = lp->base;
diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/smsc/smsc911x.c
index 8af2556..6da27b9 100644
--- a/drivers/net/ethernet/smsc/smsc911x.c
+++ b/drivers/net/ethernet/smsc/smsc911x.c
@@ -1673,7 +1673,7 @@ static int smsc911x_stop(struct net_device *dev)
 }
 
 /* Entry point for transmitting a packet */
-static int smsc911x_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t smsc911x_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct smsc911x_data *pdata = netdev_priv(dev);
 	unsigned int freespace;
diff --git a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
index 3f20bb1..59add41 100644
--- a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
@@ -140,8 +140,8 @@ void dwmac_mmc_ctrl(void __iomem *ioaddr, unsigned int mode)
 
 	writel(value, ioaddr + MMC_CNTRL);
 
-	pr_debug("stmmac: MMC ctrl register (offset 0x%x): 0x%08x\n",
-		 MMC_CNTRL, value);
+//	pr_debug("stmmac: MMC ctrl register (offset 0x%x): 0x%08x\n",
+//		 MMC_CNTRL, value);
 }
 
 /* To mask all all interrupts.*/
diff --git a/drivers/net/ethernet/sun/sunbmac.c b/drivers/net/ethernet/sun/sunbmac.c
index aa4f9d2..d9ffff3 100644
--- a/drivers/net/ethernet/sun/sunbmac.c
+++ b/drivers/net/ethernet/sun/sunbmac.c
@@ -950,7 +950,7 @@ static void bigmac_tx_timeout(struct net_device *dev)
 }
 
 /* Put a packet on the wire. */
-static int bigmac_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t bigmac_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct bigmac *bp = netdev_priv(dev);
 	int len, entry;
diff --git a/drivers/net/ethernet/sun/sunqe.c b/drivers/net/ethernet/sun/sunqe.c
index 9b825780..71a2b34 100644
--- a/drivers/net/ethernet/sun/sunqe.c
+++ b/drivers/net/ethernet/sun/sunqe.c
@@ -568,7 +568,7 @@ out:
 }
 
 /* Get a packet queued to go onto the wire. */
-static int qe_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t qe_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct sunqe *qep = netdev_priv(dev);
 	struct sunqe_buffers *qbufs = qep->buffers;
diff --git a/drivers/net/ethernet/sun/sunvnet.c b/drivers/net/ethernet/sun/sunvnet.c
index a2f9b47..05a9147 100644
--- a/drivers/net/ethernet/sun/sunvnet.c
+++ b/drivers/net/ethernet/sun/sunvnet.c
@@ -131,7 +131,7 @@ static u16 vnet_select_queue(struct net_device *dev, struct sk_buff *skb,
 }
 
 /* Wrappers to common functions */
-static int vnet_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t vnet_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	return sunvnet_start_xmit_common(skb, dev, vnet_tx_port_find);
 }
diff --git a/drivers/net/ethernet/sun/sunvnet_common.c b/drivers/net/ethernet/sun/sunvnet_common.c
index 904a5a1..6ef5cff 100644
--- a/drivers/net/ethernet/sun/sunvnet_common.c
+++ b/drivers/net/ethernet/sun/sunvnet_common.c
@@ -1126,7 +1126,7 @@ static inline struct sk_buff *vnet_skb_shape(struct sk_buff *skb, int ncookies)
 	return skb;
 }
 
-static int vnet_handle_offloads(struct vnet_port *port, struct sk_buff *skb,
+static netdev_tx_t vnet_handle_offloads(struct vnet_port *port, struct sk_buff *skb,
 				struct vnet_port *(*vnet_tx_port)
 				(struct sk_buff *, struct net_device *))
 {
@@ -1134,7 +1134,7 @@ static int vnet_handle_offloads(struct vnet_port *port, struct sk_buff *skb,
 	struct vio_dring_state *dr = &port->vio.drings[VIO_DRIVER_TX_RING];
 	struct sk_buff *segs;
 	int maclen, datalen;
-	int status;
+	netdev_tx_t status;
 	int gso_size, gso_type, gso_segs;
 	int hlen = skb_transport_header(skb) - skb_mac_header(skb);
 	int proto = IPPROTO_IP;
@@ -1190,7 +1190,7 @@ static int vnet_handle_offloads(struct vnet_port *port, struct sk_buff *skb,
 	skb_push(skb, maclen);
 	skb_reset_mac_header(skb);
 
-	status = 0;
+	status = NETDEV_TX_OK;
 	while (segs) {
 		struct sk_buff *curr = segs;
 
diff --git a/drivers/net/ethernet/synopsys/dwc_eth_qos.c b/drivers/net/ethernet/synopsys/dwc_eth_qos.c
index af11ed1..21bca5f 100644
--- a/drivers/net/ethernet/synopsys/dwc_eth_qos.c
+++ b/drivers/net/ethernet/synopsys/dwc_eth_qos.c
@@ -2173,7 +2173,7 @@ static void dwceqos_tx_rollback(struct net_local *lp, struct dwceqos_tx *tx)
 	lp->gso_size = tx->prev_gso_size;
 }
 
-static int dwceqos_start_xmit(struct sk_buff *skb, struct net_device *ndev)
+static netdev_tx_t dwceqos_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 {
 	struct net_local *lp = netdev_priv(ndev);
 	struct dwceqos_tx trans;
diff --git a/drivers/net/ethernet/ti/cpmac.c b/drivers/net/ethernet/ti/cpmac.c
index 7eef45e..c813085 100644
--- a/drivers/net/ethernet/ti/cpmac.c
+++ b/drivers/net/ethernet/ti/cpmac.c
@@ -545,7 +545,7 @@ fatal_error:
 
 }
 
-static int cpmac_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t cpmac_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	int queue, len;
 	struct cpmac_desc *desc;
diff --git a/drivers/net/ethernet/ti/netcp_core.c b/drivers/net/ethernet/ti/netcp_core.c
index 1d0942c..0c473eb 100644
--- a/drivers/net/ethernet/ti/netcp_core.c
+++ b/drivers/net/ethernet/ti/netcp_core.c
@@ -1237,7 +1237,7 @@ out:
 }
 
 /* Submit the packet */
-static int netcp_ndo_start_xmit(struct sk_buff *skb, struct net_device *ndev)
+static netdev_tx_t netcp_ndo_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 {
 	struct netcp_intf *netcp = netdev_priv(ndev);
 	int subqueue = skb_get_queue_mapping(skb);
diff --git a/drivers/net/ethernet/via/via-rhine.c b/drivers/net/ethernet/via/via-rhine.c
index 2b7550c..f75bc6c 100644
--- a/drivers/net/ethernet/via/via-rhine.c
+++ b/drivers/net/ethernet/via/via-rhine.c
@@ -2600,7 +2600,7 @@ static struct platform_driver rhine_driver_platform = {
 	}
 };
 
-static struct dmi_system_id rhine_dmi_table[] __initdata = {
+static const struct dmi_system_id rhine_dmi_table[] __initconst = {
 	{
 		.ident = "EPIA-M",
 		.matches = {
diff --git a/drivers/net/ethernet/wiznet/w5100.c b/drivers/net/ethernet/wiznet/w5100.c
index 8b282d0..134ab2e 100644
--- a/drivers/net/ethernet/wiznet/w5100.c
+++ b/drivers/net/ethernet/wiznet/w5100.c
@@ -437,7 +437,7 @@ static void w5100_tx_timeout(struct net_device *ndev)
 	netif_wake_queue(ndev);
 }
 
-static int w5100_start_tx(struct sk_buff *skb, struct net_device *ndev)
+static netdev_tx_t w5100_start_tx(struct sk_buff *skb, struct net_device *ndev)
 {
 	struct w5100_priv *priv = netdev_priv(ndev);
 	u16 offset;
diff --git a/drivers/net/ethernet/wiznet/w5300.c b/drivers/net/ethernet/wiznet/w5300.c
index 8da7b93..719204a 100644
--- a/drivers/net/ethernet/wiznet/w5300.c
+++ b/drivers/net/ethernet/wiznet/w5300.c
@@ -366,7 +366,7 @@ static void w5300_tx_timeout(struct net_device *ndev)
 	netif_wake_queue(ndev);
 }
 
-static int w5300_start_tx(struct sk_buff *skb, struct net_device *ndev)
+static netdev_tx_t w5300_start_tx(struct sk_buff *skb, struct net_device *ndev)
 {
 	struct w5300_priv *priv = netdev_priv(ndev);
 
diff --git a/drivers/net/ethernet/xilinx/ll_temac_main.c b/drivers/net/ethernet/xilinx/ll_temac_main.c
index 5a1068d..6de663b 100644
--- a/drivers/net/ethernet/xilinx/ll_temac_main.c
+++ b/drivers/net/ethernet/xilinx/ll_temac_main.c
@@ -673,7 +673,7 @@ static inline int temac_check_tx_bd_space(struct temac_local *lp, int num_frag)
 	return 0;
 }
 
-static int temac_start_xmit(struct sk_buff *skb, struct net_device *ndev)
+static netdev_tx_t temac_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 {
 	struct temac_local *lp = netdev_priv(ndev);
 	struct cdmac_bd *cur_p;
diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
index 4684644..6687c7f 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
@@ -652,7 +652,7 @@ static inline int axienet_check_tx_bd_space(struct axienet_local *lp,
  * start the transmission. Additionally if checksum offloading is supported,
  * it populates AXI Stream Control fields with appropriate values.
  */
-static int axienet_start_xmit(struct sk_buff *skb, struct net_device *ndev)
+static netdev_tx_t axienet_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 {
 	u32 ii;
 	u32 num_frag;
diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c
index 9fcb489..8f58614 100644
--- a/drivers/net/geneve.c
+++ b/drivers/net/geneve.c
@@ -1508,7 +1508,7 @@ nla_put_failure:
 	return -EMSGSIZE;
 }
 
-static struct rtnl_link_ops geneve_link_ops __read_mostly = {
+static struct rtnl_link_ops geneve_link_ops = {
 	.kind		= "geneve",
 	.maxtype	= IFLA_GENEVE_MAX,
 	.policy		= geneve_policy,
diff --git a/drivers/net/hamradio/baycom_epp.c b/drivers/net/hamradio/baycom_epp.c
index 72c9f1f..98f72c8 100644
--- a/drivers/net/hamradio/baycom_epp.c
+++ b/drivers/net/hamradio/baycom_epp.c
@@ -768,7 +768,7 @@ static void epp_bh(struct work_struct *work)
  * ===================== network driver interface =========================
  */
 
-static int baycom_send_packet(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t baycom_send_packet(struct sk_buff *skb, struct net_device *dev)
 {
 	struct baycom_state *bc = netdev_priv(dev);
 
diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index 8b3bd8e..f67d832 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -162,7 +162,7 @@ struct rndis_device {
 
 	enum rndis_device_state state;
 	bool link_state;
-	atomic_t new_req_id;
+	atomic_unchecked_t new_req_id;
 
 	spinlock_t request_lock;
 	struct list_head req_list;
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index b8121eb..d17ef42 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -353,7 +353,7 @@ not_ip:
 	return ret_val;
 }
 
-static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net)
+static netdev_tx_t netvsc_start_xmit(struct sk_buff *skb, struct net_device *net)
 {
 	struct net_device_context *net_device_ctx = netdev_priv(net);
 	struct hv_netvsc_packet *packet = NULL;
diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
index c4e1e04..c1f4cba 100644
--- a/drivers/net/hyperv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -101,7 +101,7 @@ static struct rndis_request *get_rndis_request(struct rndis_device *dev,
 	 * template
 	 */
 	set = &rndis_msg->msg.set_req;
-	set->req_id = atomic_inc_return(&dev->new_req_id);
+	set->req_id = atomic_inc_return_unchecked(&dev->new_req_id);
 
 	/* Add to the request list */
 	spin_lock_irqsave(&dev->request_lock, flags);
@@ -922,7 +922,7 @@ static void rndis_filter_halt_device(struct rndis_device *dev)
 
 	/* Setup the rndis set */
 	halt = &request->request_msg.msg.halt_req;
-	halt->req_id = atomic_inc_return(&dev->new_req_id);
+	halt->req_id = atomic_inc_return_unchecked(&dev->new_req_id);
 
 	/* Ignore return since this msg is optional. */
 	rndis_filter_send_request(dev, request);
@@ -1136,8 +1136,7 @@ int rndis_filter_device_add(struct hv_device *dev,
 	if (net_device->num_chn == 1)
 		goto out;
 
-	net_device->sub_cb_buf = vzalloc((net_device->num_chn - 1) *
-					 NETVSC_PACKET_SIZE);
+	net_device->sub_cb_buf = vzalloc(net_device->num_sc_offered * NETVSC_PACKET_SIZE);
 	if (!net_device->sub_cb_buf) {
 		net_device->num_chn = 1;
 		dev_info(&dev->device, "No memory for subchannels.\n");
diff --git a/drivers/net/ifb.c b/drivers/net/ifb.c
index cc56fac..c15b884 100644
--- a/drivers/net/ifb.c
+++ b/drivers/net/ifb.c
@@ -287,7 +287,7 @@ static int ifb_validate(struct nlattr *tb[], struct nlattr *data[])
 	return 0;
 }
 
-static struct rtnl_link_ops ifb_link_ops __read_mostly = {
+static struct rtnl_link_ops ifb_link_ops = {
 	.kind		= "ifb",
 	.priv_size	= sizeof(struct ifb_dev_private),
 	.setup		= ifb_setup,
diff --git a/drivers/net/ipvlan/ipvlan_core.c b/drivers/net/ipvlan/ipvlan_core.c
index d6d0524..109f6ad 100644
--- a/drivers/net/ipvlan/ipvlan_core.c
+++ b/drivers/net/ipvlan/ipvlan_core.c
@@ -474,7 +474,7 @@ static void ipvlan_multicast_enqueue(struct ipvl_port *port,
 		schedule_work(&port->wq);
 	} else {
 		spin_unlock(&port->backlog.lock);
-		atomic_long_inc(&skb->dev->rx_dropped);
+		atomic_long_inc_unchecked(&skb->dev->rx_dropped);
 		kfree_skb(skb);
 	}
 }
diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c
index 57941d3..99d97ae 100644
--- a/drivers/net/ipvlan/ipvlan_main.c
+++ b/drivers/net/ipvlan/ipvlan_main.c
@@ -757,15 +757,15 @@ static int ipvlan_addr4_event(struct notifier_block *unused,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block ipvlan_addr4_notifier_block __read_mostly = {
+static struct notifier_block ipvlan_addr4_notifier_block = {
 	.notifier_call = ipvlan_addr4_event,
 };
 
-static struct notifier_block ipvlan_notifier_block __read_mostly = {
+static struct notifier_block ipvlan_notifier_block = {
 	.notifier_call = ipvlan_device_event,
 };
 
-static struct notifier_block ipvlan_addr6_notifier_block __read_mostly = {
+static struct notifier_block ipvlan_addr6_notifier_block = {
 	.notifier_call = ipvlan_addr6_event,
 };
 
diff --git a/drivers/net/irda/sh_irda.c b/drivers/net/irda/sh_irda.c
index c96b46b..09f0e8c 100644
--- a/drivers/net/irda/sh_irda.c
+++ b/drivers/net/irda/sh_irda.c
@@ -620,7 +620,7 @@ static int sh_irda_init_iobuf(struct sh_irda_self *self, int rxsize, int txsize)
 
 
 ************************************************************************/
-static int sh_irda_hard_xmit(struct sk_buff *skb, struct net_device *ndev)
+static netdev_tx_t sh_irda_hard_xmit(struct sk_buff *skb, struct net_device *ndev)
 {
 	struct sh_irda_self *self = netdev_priv(ndev);
 	struct device *dev = &self->ndev->dev;
diff --git a/drivers/net/irda/vlsi_ir.c b/drivers/net/irda/vlsi_ir.c
index a0849f4..147a4a6 100644
--- a/drivers/net/irda/vlsi_ir.c
+++ b/drivers/net/irda/vlsi_ir.c
@@ -142,7 +142,7 @@ static void vlsi_ring_debug(struct vlsi_ring *r)
 	printk(KERN_DEBUG "%s - ring %p / size %u / mask 0x%04x / len %u / dir %d / hw %p\n",
 		__func__, r, r->size, r->mask, r->len, r->dir, r->rd[0].hw);
 	printk(KERN_DEBUG "%s - head = %d / tail = %d\n", __func__,
-		atomic_read(&r->head) & r->mask, atomic_read(&r->tail) & r->mask);
+		atomic_read_unchecked(&r->head) & r->mask, atomic_read_unchecked(&r->tail) & r->mask);
 	for (i = 0; i < r->size; i++) {
 		rd = &r->rd[i];
 		printk(KERN_DEBUG "%s - ring descr %u: ", __func__, i);
@@ -301,8 +301,8 @@ static void vlsi_proc_ring(struct seq_file *seq, struct vlsi_ring *r)
 
 	seq_printf(seq, "size %u / mask 0x%04x / len %u / dir %d / hw %p\n",
 		r->size, r->mask, r->len, r->dir, r->rd[0].hw);
-	h = atomic_read(&r->head) & r->mask;
-	t = atomic_read(&r->tail) & r->mask;
+	h = atomic_read_unchecked(&r->head) & r->mask;
+	t = atomic_read_unchecked(&r->tail) & r->mask;
 	seq_printf(seq, "head = %d / tail = %d ", h, t);
 	if (h == t)
 		seq_printf(seq, "(empty)\n");
@@ -410,8 +410,8 @@ static struct vlsi_ring *vlsi_alloc_ring(struct pci_dev *pdev, struct ring_descr
 	r->rd = (struct ring_descr *)(r+1);
 	r->mask = size - 1;
 	r->size = size;
-	atomic_set(&r->head, 0);
-	atomic_set(&r->tail, 0);
+	atomic_set_unchecked(&r->head, 0);
+	atomic_set_unchecked(&r->tail, 0);
 
 	for (i = 0; i < size; i++) {
 		rd = r->rd + i;
@@ -1268,10 +1268,10 @@ static int vlsi_init_chip(struct pci_dev *pdev)
 		iobase+VLSI_PIO_RINGSIZE);	
 
 	ptr = inw(iobase+VLSI_PIO_RINGPTR);
-	atomic_set(&idev->rx_ring->head, RINGPTR_GET_RX(ptr));
-	atomic_set(&idev->rx_ring->tail, RINGPTR_GET_RX(ptr));
-	atomic_set(&idev->tx_ring->head, RINGPTR_GET_TX(ptr));
-	atomic_set(&idev->tx_ring->tail, RINGPTR_GET_TX(ptr));
+	atomic_set_unchecked(&idev->rx_ring->head, RINGPTR_GET_RX(ptr));
+	atomic_set_unchecked(&idev->rx_ring->tail, RINGPTR_GET_RX(ptr));
+	atomic_set_unchecked(&idev->tx_ring->head, RINGPTR_GET_TX(ptr));
+	atomic_set_unchecked(&idev->tx_ring->tail, RINGPTR_GET_TX(ptr));
 
 	vlsi_set_baud(idev, iobase);	/* idev->new_baud used as provided by caller */
 
diff --git a/drivers/net/irda/vlsi_ir.h b/drivers/net/irda/vlsi_ir.h
index f9db2ce..6cd460c 100644
--- a/drivers/net/irda/vlsi_ir.h
+++ b/drivers/net/irda/vlsi_ir.h
@@ -671,7 +671,7 @@ struct vlsi_ring {
 	unsigned		len;
 	unsigned		size;
 	unsigned		mask;
-	atomic_t		head, tail;
+	atomic_unchecked_t	head, tail;
 	struct ring_descr	*rd;
 };
 
@@ -681,13 +681,13 @@ static inline struct ring_descr *ring_last(struct vlsi_ring *r)
 {
 	int t;
 
-	t = atomic_read(&r->tail) & r->mask;
-	return (((t+1) & r->mask) == (atomic_read(&r->head) & r->mask)) ? NULL : &r->rd[t];
+	t = atomic_read_unchecked(&r->tail) & r->mask;
+	return (((t+1) & r->mask) == (atomic_read_unchecked(&r->head) & r->mask)) ? NULL : &r->rd[t];
 }
 
 static inline struct ring_descr *ring_put(struct vlsi_ring *r)
 {
-	atomic_inc(&r->tail);
+	atomic_inc_unchecked(&r->tail);
 	return ring_last(r);
 }
 
@@ -695,13 +695,13 @@ static inline struct ring_descr *ring_first(struct vlsi_ring *r)
 {
 	int h;
 
-	h = atomic_read(&r->head) & r->mask;
-	return (h == (atomic_read(&r->tail) & r->mask)) ? NULL : &r->rd[h];
+	h = atomic_read_unchecked(&r->head) & r->mask;
+	return (h == (atomic_read_unchecked(&r->tail) & r->mask)) ? NULL : &r->rd[h];
 }
 
 static inline struct ring_descr *ring_get(struct vlsi_ring *r)
 {
-	atomic_inc(&r->head);
+	atomic_inc_unchecked(&r->head);
 	return ring_first(r);
 }
 
diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c
index a400288..0c59bcd 100644
--- a/drivers/net/loopback.c
+++ b/drivers/net/loopback.c
@@ -217,6 +217,6 @@ out:
 }
 
 /* Registered in net/core/dev.c */
-struct pernet_operations __net_initdata loopback_net_ops = {
+struct pernet_operations __net_initconst loopback_net_ops = {
        .init = loopback_net_init,
 };
diff --git a/drivers/net/macsec.c b/drivers/net/macsec.c
index 9e803bb..fb251d2 100644
--- a/drivers/net/macsec.c
+++ b/drivers/net/macsec.c
@@ -3217,7 +3217,7 @@ nla_put_failure:
 	return -EMSGSIZE;
 }
 
-static struct rtnl_link_ops macsec_link_ops __read_mostly = {
+static struct rtnl_link_ops macsec_link_ops = {
 	.kind		= "macsec",
 	.priv_size	= sizeof(struct macsec_dev),
 	.maxtype	= IFLA_MACSEC_MAX,
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index 2bcf1f3..f2bef9c 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -335,7 +335,7 @@ static void macvlan_broadcast_enqueue(struct macvlan_port *port,
 free_nskb:
 	kfree_skb(nskb);
 err:
-	atomic_long_inc(&skb->dev->rx_dropped);
+	atomic_long_inc_unchecked(&skb->dev->rx_dropped);
 }
 
 static void macvlan_flush_sources(struct macvlan_port *port,
@@ -1485,13 +1485,15 @@ static const struct nla_policy macvlan_policy[IFLA_MACVLAN_MAX + 1] = {
 int macvlan_link_register(struct rtnl_link_ops *ops)
 {
 	/* common fields */
-	ops->priv_size		= sizeof(struct macvlan_dev);
-	ops->validate		= macvlan_validate;
-	ops->maxtype		= IFLA_MACVLAN_MAX;
-	ops->policy		= macvlan_policy;
-	ops->changelink		= macvlan_changelink;
-	ops->get_size		= macvlan_get_size;
-	ops->fill_info		= macvlan_fill_info;
+	pax_open_kernel();
+	const_cast(ops->priv_size)	= sizeof(struct macvlan_dev);
+	const_cast(ops->validate)	= macvlan_validate;
+	const_cast(ops->maxtype)	= IFLA_MACVLAN_MAX;
+	const_cast(ops->policy)		= macvlan_policy;
+	const_cast(ops->changelink)	= macvlan_changelink;
+	const_cast(ops->get_size)	= macvlan_get_size;
+	const_cast(ops->fill_info)	= macvlan_fill_info;
+	pax_close_kernel();
 
 	return rtnl_link_register(ops);
 };
@@ -1579,7 +1581,7 @@ static int macvlan_device_event(struct notifier_block *unused,
 	return NOTIFY_DONE;
 }
 
-static struct notifier_block macvlan_notifier_block __read_mostly = {
+static struct notifier_block macvlan_notifier_block = {
 	.notifier_call	= macvlan_device_event,
 };
 
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index 9a35aa4..ef7ef34 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -485,7 +485,7 @@ static void macvtap_setup(struct net_device *dev)
 	dev->tx_queue_len = TUN_READQ_SIZE;
 }
 
-static struct rtnl_link_ops macvtap_link_ops __read_mostly = {
+static struct rtnl_link_ops macvtap_link_ops = {
 	.kind		= "macvtap",
 	.setup		= macvtap_setup,
 	.newlink	= macvtap_newlink,
@@ -1094,7 +1094,7 @@ static long macvtap_ioctl(struct file *file, unsigned int cmd,
 
 		ret = 0;
 		u = q->flags;
-		if (copy_to_user(&ifr->ifr_name, vlan->dev->name, IFNAMSIZ) ||
+		if (copy_to_user(ifr->ifr_name, vlan->dev->name, IFNAMSIZ) ||
 		    put_user(u, &ifr->ifr_flags))
 			ret = -EFAULT;
 		macvtap_put_vlan(vlan);
@@ -1177,8 +1177,8 @@ static long macvtap_ioctl(struct file *file, unsigned int cmd,
 		}
 		ret = 0;
 		u = vlan->dev->type;
-		if (copy_to_user(&ifr->ifr_name, vlan->dev->name, IFNAMSIZ) ||
-		    copy_to_user(&ifr->ifr_hwaddr.sa_data, vlan->dev->dev_addr, ETH_ALEN) ||
+		if (copy_to_user(ifr->ifr_name, vlan->dev->name, IFNAMSIZ) ||
+		    copy_to_user(ifr->ifr_hwaddr.sa_data, vlan->dev->dev_addr, ETH_ALEN) ||
 		    put_user(u, &ifr->ifr_hwaddr.sa_family))
 			ret = -EFAULT;
 		macvtap_put_vlan(vlan);
@@ -1312,7 +1312,7 @@ static int macvtap_device_event(struct notifier_block *unused,
 	return NOTIFY_DONE;
 }
 
-static struct notifier_block macvtap_notifier_block __read_mostly = {
+static struct notifier_block macvtap_notifier_block = {
 	.notifier_call	= macvtap_device_event,
 };
 
diff --git a/drivers/net/nlmon.c b/drivers/net/nlmon.c
index 7b7c70e..a92dc83 100644
--- a/drivers/net/nlmon.c
+++ b/drivers/net/nlmon.c
@@ -154,7 +154,7 @@ static int nlmon_validate(struct nlattr *tb[], struct nlattr *data[])
 	return 0;
 }
 
-static struct rtnl_link_ops nlmon_link_ops __read_mostly = {
+static struct rtnl_link_ops nlmon_link_ops = {
 	.kind			= "nlmon",
 	.priv_size		= sizeof(struct nlmon),
 	.setup			= nlmon_setup,
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index e551f3a..e5fdf87 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -411,7 +411,7 @@ static int get_phy_c45_devs_in_pkg(struct mii_bus *bus, int addr, int dev_addr,
  *   zero on success.
  *
  */
-static int get_phy_c45_ids(struct mii_bus *bus, int addr, u32 *phy_id,
+static int get_phy_c45_ids(struct mii_bus *bus, int addr, int *phy_id,
 			   struct phy_c45_device_ids *c45_ids) {
 	int phy_reg;
 	int i, reg_addr;
@@ -482,7 +482,7 @@ static int get_phy_c45_ids(struct mii_bus *bus, int addr, u32 *phy_id,
  *   its return value is in turn returned.
  *
  */
-static int get_phy_id(struct mii_bus *bus, int addr, u32 *phy_id,
+static int get_phy_id(struct mii_bus *bus, int addr, int *phy_id,
 		      bool is_c45, struct phy_c45_device_ids *c45_ids)
 {
 	int phy_reg;
@@ -520,7 +520,7 @@ static int get_phy_id(struct mii_bus *bus, int addr, u32 *phy_id,
 struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45)
 {
 	struct phy_c45_device_ids c45_ids = {0};
-	u32 phy_id = 0;
+	int phy_id = 0;
 	int r;
 
 	r = get_phy_id(bus, addr, &phy_id, is_c45, &c45_ids);
diff --git a/drivers/net/plip/plip.c b/drivers/net/plip/plip.c
index 9c4b41a..03da80b 100644
--- a/drivers/net/plip/plip.c
+++ b/drivers/net/plip/plip.c
@@ -950,7 +950,7 @@ plip_interrupt(void *dev_id)
 	spin_unlock_irqrestore(&nl->lock, flags);
 }
 
-static int
+static netdev_tx_t
 plip_tx_packet(struct sk_buff *skb, struct net_device *dev)
 {
 	struct net_local *nl = netdev_priv(dev);
diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
index f572b31..3a19b6ff 100644
--- a/drivers/net/ppp/ppp_generic.c
+++ b/drivers/net/ppp/ppp_generic.c
@@ -1056,7 +1056,6 @@ ppp_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 	void __user *addr = (void __user *) ifr->ifr_ifru.ifru_data;
 	struct ppp_stats stats;
 	struct ppp_comp_stats cstats;
-	char *vers;
 
 	switch (cmd) {
 	case SIOCGPPPSTATS:
@@ -1078,8 +1077,7 @@ ppp_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 		break;
 
 	case SIOCGPPPVER:
-		vers = PPP_VERSION;
-		if (copy_to_user(addr, vers, strlen(vers) + 1))
+		if (copy_to_user(addr, PPP_VERSION, sizeof(PPP_VERSION)))
 			break;
 		err = 0;
 		break;
diff --git a/drivers/net/ppp/pptp.c b/drivers/net/ppp/pptp.c
index ae0905e..f22c8e9d 100644
--- a/drivers/net/ppp/pptp.c
+++ b/drivers/net/ppp/pptp.c
@@ -368,7 +368,7 @@ allow_packet:
 		}
 
 		skb->ip_summed = CHECKSUM_NONE;
-		skb_set_network_header(skb, skb->head-skb->data);
+		skb->network_header = 0;
 		ppp_input(&po->chan, skb);
 
 		return NET_RX_SUCCESS;
diff --git a/drivers/net/rionet.c b/drivers/net/rionet.c
index 9cfe6ae..3ec3a5f 100644
--- a/drivers/net/rionet.c
+++ b/drivers/net/rionet.c
@@ -170,7 +170,7 @@ static int rionet_queue_tx_msg(struct sk_buff *skb, struct net_device *ndev,
 	return 0;
 }
 
-static int rionet_start_xmit(struct sk_buff *skb, struct net_device *ndev)
+static netdev_tx_t rionet_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 {
 	int i;
 	struct rionet_private *rnet = netdev_priv(ndev);
diff --git a/drivers/net/slip/slhc.c b/drivers/net/slip/slhc.c
index 27ed252..80cffde 100644
--- a/drivers/net/slip/slhc.c
+++ b/drivers/net/slip/slhc.c
@@ -491,7 +491,7 @@ slhc_uncompress(struct slcompress *comp, unsigned char *icp, int isize)
 	register struct tcphdr *thp;
 	register struct iphdr *ip;
 	register struct cstate *cs;
-	int len, hdrlen;
+	long len, hdrlen;
 	unsigned char *cp = icp;
 
 	/* We've got a compressed packet; read the change byte */
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 2ace126..c06df62 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -2148,7 +2148,7 @@ static unsigned int team_get_num_rx_queues(void)
 	return TEAM_DEFAULT_NUM_RX_QUEUES;
 }
 
-static struct rtnl_link_ops team_link_ops __read_mostly = {
+static struct rtnl_link_ops team_link_ops = {
 	.kind			= DRV_NAME,
 	.priv_size		= sizeof(struct team),
 	.setup			= team_setup,
@@ -2943,7 +2943,7 @@ static int team_device_event(struct notifier_block *unused,
 	return NOTIFY_DONE;
 }
 
-static struct notifier_block team_notifier_block __read_mostly = {
+static struct notifier_block team_notifier_block = {
 	.notifier_call = team_device_event,
 };
 
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index dda4905..c0a1944 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1491,7 +1491,7 @@ static int tun_validate(struct nlattr *tb[], struct nlattr *data[])
 	return -EINVAL;
 }
 
-static struct rtnl_link_ops tun_link_ops __read_mostly = {
+static struct rtnl_link_ops tun_link_ops = {
 	.kind		= DRV_NAME,
 	.priv_size	= sizeof(struct tun_struct),
 	.setup		= tun_setup,
@@ -1892,7 +1892,7 @@ unlock:
 }
 
 static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
-			    unsigned long arg, int ifreq_len)
+			    unsigned long arg, size_t ifreq_len)
 {
 	struct tun_file *tfile = file->private_data;
 	struct tun_struct *tun;
@@ -1906,6 +1906,9 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
 	int le;
 	int ret;
 
+	if (ifreq_len > sizeof ifr)
+		return -EFAULT;
+
 	if (cmd == TUNSETIFF || cmd == TUNSETQUEUE || _IOC_TYPE(cmd) == 0x89) {
 		if (copy_from_user(&ifr, argp, ifreq_len))
 			return -EFAULT;
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index 111d907..1dbbd3f 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -70,7 +70,7 @@
 #include <asm/byteorder.h>
 #include <linux/serial_core.h>
 #include <linux/serial.h>
-
+#include <asm/local.h>
 
 #define MOD_AUTHOR			"Option Wireless"
 #define MOD_DESCRIPTION			"USB High Speed Option driver"
@@ -1183,7 +1183,7 @@ static void put_rxbuf_data_and_resubmit_ctrl_urb(struct hso_serial *serial)
 	struct urb *urb;
 
 	urb = serial->rx_urb[0];
-	if (serial->port.count > 0) {
+	if (atomic_read(&serial->port.count) > 0) {
 		count = put_rxbuf_data(urb, serial);
 		if (count == -1)
 			return;
@@ -1221,7 +1221,7 @@ static void hso_std_serial_read_bulk_callback(struct urb *urb)
 	DUMP1(urb->transfer_buffer, urb->actual_length);
 
 	/* Anyone listening? */
-	if (serial->port.count == 0)
+	if (atomic_read(&serial->port.count) == 0)
 		return;
 
 	if (serial->parent->port_spec & HSO_INFO_CRC_BUG)
@@ -1237,8 +1237,9 @@ static void hso_std_serial_read_bulk_callback(struct urb *urb)
  * This needs to be a tasklet otherwise we will
  * end up recursively calling this function.
  */
-static void hso_unthrottle_tasklet(struct hso_serial *serial)
+static void hso_unthrottle_tasklet(unsigned long _serial)
 {
+	struct hso_serial *serial = (struct hso_serial *)_serial;
 	unsigned long flags;
 
 	spin_lock_irqsave(&serial->serial_lock, flags);
@@ -1282,18 +1283,17 @@ static int hso_serial_open(struct tty_struct *tty, struct file *filp)
 	tty_port_tty_set(&serial->port, tty);
 
 	/* check for port already opened, if not set the termios */
-	serial->port.count++;
-	if (serial->port.count == 1) {
+	if (atomic_inc_return(&serial->port.count) == 1) {
 		serial->rx_state = RX_IDLE;
 		/* Force default termio settings */
 		_hso_serial_set_termios(tty, NULL);
 		tasklet_init(&serial->unthrottle_tasklet,
-			     (void (*)(unsigned long))hso_unthrottle_tasklet,
+			     hso_unthrottle_tasklet,
 			     (unsigned long)serial);
 		result = hso_start_serial_device(serial->parent, GFP_KERNEL);
 		if (result) {
 			hso_stop_serial_device(serial->parent);
-			serial->port.count--;
+			atomic_dec(&serial->port.count);
 		} else {
 			kref_get(&serial->parent->ref);
 		}
@@ -1331,10 +1331,10 @@ static void hso_serial_close(struct tty_struct *tty, struct file *filp)
 
 	/* reset the rts and dtr */
 	/* do the actual close */
-	serial->port.count--;
+	atomic_dec(&serial->port.count);
 
-	if (serial->port.count <= 0) {
-		serial->port.count = 0;
+	if (atomic_read(&serial->port.count) <= 0) {
+		atomic_set(&serial->port.count, 0);
 		tty_port_tty_set(&serial->port, NULL);
 		if (!usb_gone)
 			hso_stop_serial_device(serial->parent);
@@ -1417,7 +1417,7 @@ static void hso_serial_set_termios(struct tty_struct *tty, struct ktermios *old)
 
 	/* the actual setup */
 	spin_lock_irqsave(&serial->serial_lock, flags);
-	if (serial->port.count)
+	if (atomic_read(&serial->port.count))
 		_hso_serial_set_termios(tty, old);
 	else
 		tty->termios = *old;
@@ -1891,7 +1891,7 @@ static void intr_callback(struct urb *urb)
 				D1("Pending read interrupt on port %d\n", i);
 				spin_lock(&serial->serial_lock);
 				if (serial->rx_state == RX_IDLE &&
-					serial->port.count > 0) {
+					atomic_read(&serial->port.count) > 0) {
 					/* Setup and send a ctrl req read on
 					 * port i */
 					if (!serial->rx_urb_filled[0]) {
@@ -3058,7 +3058,7 @@ static int hso_resume(struct usb_interface *iface)
 	/* Start all serial ports */
 	for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) {
 		if (serial_table[i] && (serial_table[i]->interface == iface)) {
-			if (dev2ser(serial_table[i])->port.count) {
+			if (atomic_read(&dev2ser(serial_table[i])->port.count)) {
 				result =
 				    hso_start_serial_device(serial_table[i], GFP_NOIO);
 				hso_kick_transmit(dev2ser(serial_table[i]));
diff --git a/drivers/net/usb/ipheth.c b/drivers/net/usb/ipheth.c
index 76465b1..2d72355 100644
--- a/drivers/net/usb/ipheth.c
+++ b/drivers/net/usb/ipheth.c
@@ -400,7 +400,7 @@ static int ipheth_close(struct net_device *net)
 	return 0;
 }
 
-static int ipheth_tx(struct sk_buff *skb, struct net_device *net)
+static netdev_tx_t ipheth_tx(struct sk_buff *skb, struct net_device *net)
 {
 	struct ipheth_device *dev = netdev_priv(net);
 	struct usb_device *udev = dev->udev;
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index d1f78c2..5596ab1 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -619,7 +619,7 @@ struct r8152 {
 		int (*eee_get)(struct r8152 *, struct ethtool_eee *);
 		int (*eee_set)(struct r8152 *, struct ethtool_eee *);
 		bool (*in_nway)(struct r8152 *);
-	} rtl_ops;
+	} __no_const rtl_ops;
 
 	int intr_interval;
 	u32 saved_wolopts;
diff --git a/drivers/net/usb/sierra_net.c b/drivers/net/usb/sierra_net.c
index a2515887..6d13233 100644
--- a/drivers/net/usb/sierra_net.c
+++ b/drivers/net/usb/sierra_net.c
@@ -51,7 +51,7 @@ static const char driver_name[] = "sierra_net";
 /* atomic counter partially included in MAC address to make sure 2 devices
  * do not end up with the same MAC - concept breaks in case of > 255 ifaces
  */
-static	atomic_t iface_counter = ATOMIC_INIT(0);
+static	atomic_unchecked_t iface_counter = ATOMIC_INIT(0);
 
 /*
  * SYNC Timer Delay definition used to set the expiry time
@@ -697,7 +697,7 @@ static int sierra_net_bind(struct usbnet *dev, struct usb_interface *intf)
 	dev->net->netdev_ops = &sierra_net_device_ops;
 
 	/* change MAC addr to include, ifacenum, and to be unique */
-	dev->net->dev_addr[ETH_ALEN-2] = atomic_inc_return(&iface_counter);
+	dev->net->dev_addr[ETH_ALEN-2] = atomic_inc_return_unchecked(&iface_counter);
 	dev->net->dev_addr[ETH_ALEN-1] = ifacenum;
 
 	/* we will have to manufacture ethernet headers, prepare template */
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 49d84e5..2492568 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -48,7 +48,7 @@ module_param(gso, bool, 0444);
 DECLARE_EWMA(pkt_len, 1, 64)
 
 /* Minimum alignment for mergeable packet buffers. */
-#define MERGEABLE_BUFFER_ALIGN max(L1_CACHE_BYTES, 256)
+#define MERGEABLE_BUFFER_ALIGN max(L1_CACHE_BYTES, 256UL)
 
 #define VIRTNET_DRIVER_VERSION "1.0.0"
 
diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c
index 8a8f1e5..15da5ea 100644
--- a/drivers/net/vrf.c
+++ b/drivers/net/vrf.c
@@ -781,7 +781,7 @@ static const struct nla_policy vrf_nl_policy[IFLA_VRF_MAX + 1] = {
 	[IFLA_VRF_TABLE] = { .type = NLA_U32 },
 };
 
-static struct rtnl_link_ops vrf_link_ops __read_mostly = {
+static struct rtnl_link_ops vrf_link_ops = {
 	.kind		= DRV_NAME,
 	.priv_size	= sizeof(struct net_vrf),
 
@@ -818,7 +818,7 @@ out:
 	return NOTIFY_DONE;
 }
 
-static struct notifier_block vrf_notifier_block __read_mostly = {
+static struct notifier_block vrf_notifier_block = {
 	.notifier_call = vrf_device_event,
 };
 
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 7e29b55..13e9b3e 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -3119,7 +3119,7 @@ static struct net *vxlan_get_link_net(const struct net_device *dev)
 	return vxlan->net;
 }
 
-static struct rtnl_link_ops vxlan_link_ops __read_mostly = {
+static struct rtnl_link_ops vxlan_link_ops = {
 	.kind		= "vxlan",
 	.maxtype	= IFLA_VXLAN_MAX,
 	.policy		= vxlan_policy,
@@ -3167,7 +3167,7 @@ static int vxlan_lowerdev_event(struct notifier_block *unused,
 	return NOTIFY_DONE;
 }
 
-static struct notifier_block vxlan_notifier_block __read_mostly = {
+static struct notifier_block vxlan_notifier_block = {
 	.notifier_call = vxlan_lowerdev_event,
 };
 
diff --git a/drivers/net/wan/lmc/lmc_media.c b/drivers/net/wan/lmc/lmc_media.c
index 5920c99..ff2e4a5 100644
--- a/drivers/net/wan/lmc/lmc_media.c
+++ b/drivers/net/wan/lmc/lmc_media.c
@@ -95,62 +95,63 @@ static inline void write_av9110_bit (lmc_softc_t *, int);
 static void write_av9110(lmc_softc_t *, u32, u32, u32, u32, u32);
 
 lmc_media_t lmc_ds3_media = {
-  lmc_ds3_init,			/* special media init stuff */
-  lmc_ds3_default,		/* reset to default state */
-  lmc_ds3_set_status,		/* reset status to state provided */
-  lmc_dummy_set_1,		/* set clock source */
-  lmc_dummy_set2_1,		/* set line speed */
-  lmc_ds3_set_100ft,		/* set cable length */
-  lmc_ds3_set_scram,		/* set scrambler */
-  lmc_ds3_get_link_status,	/* get link status */
-  lmc_dummy_set_1,		/* set link status */
-  lmc_ds3_set_crc_length,	/* set CRC length */
-  lmc_dummy_set_1,		/* set T1 or E1 circuit type */
-  lmc_ds3_watchdog
+  .init = lmc_ds3_init,				/* special media init stuff */
+  .defaults = lmc_ds3_default,			/* reset to default state */
+  .set_status = lmc_ds3_set_status,		/* reset status to state provided */
+  .set_clock_source = lmc_dummy_set_1,		/* set clock source */
+  .set_speed = lmc_dummy_set2_1,		/* set line speed */
+  .set_cable_length = lmc_ds3_set_100ft,	/* set cable length */
+  .set_scrambler = lmc_ds3_set_scram,		/* set scrambler */
+  .get_link_status = lmc_ds3_get_link_status,	/* get link status */
+  .set_link_status = lmc_dummy_set_1,		/* set link status */
+  .set_crc_length = lmc_ds3_set_crc_length,	/* set CRC length */
+  .set_circuit_type = lmc_dummy_set_1,		/* set T1 or E1 circuit type */
+  .watchdog = lmc_ds3_watchdog
 };
 
 lmc_media_t lmc_hssi_media = {
-  lmc_hssi_init,		/* special media init stuff */
-  lmc_hssi_default,		/* reset to default state */
-  lmc_hssi_set_status,		/* reset status to state provided */
-  lmc_hssi_set_clock,		/* set clock source */
-  lmc_dummy_set2_1,		/* set line speed */
-  lmc_dummy_set_1,		/* set cable length */
-  lmc_dummy_set_1,		/* set scrambler */
-  lmc_hssi_get_link_status,	/* get link status */
-  lmc_hssi_set_link_status,	/* set link status */
-  lmc_hssi_set_crc_length,	/* set CRC length */
-  lmc_dummy_set_1,		/* set T1 or E1 circuit type */
-  lmc_hssi_watchdog
+  .init = lmc_hssi_init,			/* special media init stuff */
+  .defaults = lmc_hssi_default,			/* reset to default state */
+  .set_status = lmc_hssi_set_status,		/* reset status to state provided */
+  .set_clock_source = lmc_hssi_set_clock,	/* set clock source */
+  .set_speed = lmc_dummy_set2_1,		/* set line speed */
+  .set_cable_length = lmc_dummy_set_1,		/* set cable length */
+  .set_scrambler = lmc_dummy_set_1,		/* set scrambler */
+  .get_link_status = lmc_hssi_get_link_status,	/* get link status */
+  .set_link_status = lmc_hssi_set_link_status,	/* set link status */
+  .set_crc_length = lmc_hssi_set_crc_length,	/* set CRC length */
+  .set_circuit_type = lmc_dummy_set_1,		/* set T1 or E1 circuit type */
+  .watchdog = lmc_hssi_watchdog
 };
 
-lmc_media_t lmc_ssi_media = { lmc_ssi_init,	/* special media init stuff */
-  lmc_ssi_default,		/* reset to default state */
-  lmc_ssi_set_status,		/* reset status to state provided */
-  lmc_ssi_set_clock,		/* set clock source */
-  lmc_ssi_set_speed,		/* set line speed */
-  lmc_dummy_set_1,		/* set cable length */
-  lmc_dummy_set_1,		/* set scrambler */
-  lmc_ssi_get_link_status,	/* get link status */
-  lmc_ssi_set_link_status,	/* set link status */
-  lmc_ssi_set_crc_length,	/* set CRC length */
-  lmc_dummy_set_1,		/* set T1 or E1 circuit type */
-  lmc_ssi_watchdog
+lmc_media_t lmc_ssi_media = {
+  .init = lmc_ssi_init,				/* special media init stuff */
+  .defaults = lmc_ssi_default,			/* reset to default state */
+  .set_status = lmc_ssi_set_status,		/* reset status to state provided */
+  .set_clock_source = lmc_ssi_set_clock,	/* set clock source */
+  .set_speed = lmc_ssi_set_speed,		/* set line speed */
+  .set_cable_length = lmc_dummy_set_1,		/* set cable length */
+  .set_scrambler = lmc_dummy_set_1,		/* set scrambler */
+  .get_link_status = lmc_ssi_get_link_status,	/* get link status */
+  .set_link_status = lmc_ssi_set_link_status,	/* set link status */
+  .set_crc_length = lmc_ssi_set_crc_length,	/* set CRC length */
+  .set_circuit_type = lmc_dummy_set_1,		/* set T1 or E1 circuit type */
+  .watchdog = lmc_ssi_watchdog
 };
 
 lmc_media_t lmc_t1_media = {
-  lmc_t1_init,			/* special media init stuff */
-  lmc_t1_default,		/* reset to default state */
-  lmc_t1_set_status,		/* reset status to state provided */
-  lmc_t1_set_clock,		/* set clock source */
-  lmc_dummy_set2_1,		/* set line speed */
-  lmc_dummy_set_1,		/* set cable length */
-  lmc_dummy_set_1,		/* set scrambler */
-  lmc_t1_get_link_status,	/* get link status */
-  lmc_dummy_set_1,		/* set link status */
-  lmc_t1_set_crc_length,	/* set CRC length */
-  lmc_t1_set_circuit_type,	/* set T1 or E1 circuit type */
-  lmc_t1_watchdog
+  .init = lmc_t1_init,				/* special media init stuff */
+  .defaults = lmc_t1_default,			/* reset to default state */
+  .set_status = lmc_t1_set_status,		/* reset status to state provided */
+  .set_clock_source = lmc_t1_set_clock,		/* set clock source */
+  .set_speed = lmc_dummy_set2_1,		/* set line speed */
+  .set_cable_length = lmc_dummy_set_1,		/* set cable length */
+  .set_scrambler = lmc_dummy_set_1,		/* set scrambler */
+  .get_link_status = lmc_t1_get_link_status,	/* get link status */
+  .set_link_status = lmc_dummy_set_1,		/* set link status */
+  .set_crc_length = lmc_t1_set_crc_length,	/* set CRC length */
+  .set_circuit_type = lmc_t1_set_circuit_type,	/* set T1 or E1 circuit type */
+  .watchdog = lmc_t1_watchdog
 };
 
 static void
diff --git a/drivers/net/wan/z85230.c b/drivers/net/wan/z85230.c
index 2f0bd69..e46ed7b 100644
--- a/drivers/net/wan/z85230.c
+++ b/drivers/net/wan/z85230.c
@@ -485,9 +485,9 @@ static void z8530_status(struct z8530_channel *chan)
 
 struct z8530_irqhandler z8530_sync =
 {
-	z8530_rx,
-	z8530_tx,
-	z8530_status
+	.rx = z8530_rx,
+	.tx = z8530_tx,
+	.status = z8530_status
 };
 
 EXPORT_SYMBOL(z8530_sync);
@@ -605,15 +605,15 @@ static void z8530_dma_status(struct z8530_channel *chan)
 }
 
 static struct z8530_irqhandler z8530_dma_sync = {
-	z8530_dma_rx,
-	z8530_dma_tx,
-	z8530_dma_status
+	.rx = z8530_dma_rx,
+	.tx = z8530_dma_tx,
+	.status = z8530_dma_status
 };
 
 static struct z8530_irqhandler z8530_txdma_sync = {
-	z8530_rx,
-	z8530_dma_tx,
-	z8530_dma_status
+	.rx = z8530_rx,
+	.tx = z8530_dma_tx,
+	.status = z8530_dma_status
 };
 
 /**
@@ -680,9 +680,9 @@ static void z8530_status_clear(struct z8530_channel *chan)
 
 struct z8530_irqhandler z8530_nop=
 {
-	z8530_rx_clear,
-	z8530_tx_clear,
-	z8530_status_clear
+	.rx = z8530_rx_clear,
+	.tx = z8530_tx_clear,
+	.status = z8530_status_clear
 };
 
 
diff --git a/drivers/net/wimax/i2400m/rx.c b/drivers/net/wimax/i2400m/rx.c
index 0b60295..b8bfa5b 100644
--- a/drivers/net/wimax/i2400m/rx.c
+++ b/drivers/net/wimax/i2400m/rx.c
@@ -1359,7 +1359,7 @@ int i2400m_rx_setup(struct i2400m *i2400m)
 		if (i2400m->rx_roq == NULL)
 			goto error_roq_alloc;
 
-		rd = kcalloc(I2400M_RO_CIN + 1, sizeof(*i2400m->rx_roq[0].log),
+		rd = kcalloc(sizeof(*i2400m->rx_roq[0].log), I2400M_RO_CIN + 1,
 			     GFP_KERNEL);
 		if (rd == NULL) {
 			result = -ENOMEM;
diff --git a/drivers/net/wireless/ath/ath10k/ce.c b/drivers/net/wireless/ath/ath10k/ce.c
index edf3629..9f20ef9 100644
--- a/drivers/net/wireless/ath/ath10k/ce.c
+++ b/drivers/net/wireless/ath/ath10k/ce.c
@@ -878,12 +878,12 @@ static int ath10k_ce_init_dest_ring(struct ath10k *ar,
 	return 0;
 }
 
-static struct ath10k_ce_ring *
+static struct ath10k_ce_ring * __intentional_overflow(-1)
 ath10k_ce_alloc_src_ring(struct ath10k *ar, unsigned int ce_id,
 			 const struct ce_attr *attr)
 {
 	struct ath10k_ce_ring *src_ring;
-	u32 nentries = attr->src_nentries;
+	unsigned long nentries = attr->src_nentries;
 	dma_addr_t base_addr;
 
 	nentries = roundup_pow_of_two(nentries);
@@ -929,7 +929,7 @@ ath10k_ce_alloc_dest_ring(struct ath10k *ar, unsigned int ce_id,
 			  const struct ce_attr *attr)
 {
 	struct ath10k_ce_ring *dest_ring;
-	u32 nentries;
+	unsigned long nentries;
 	dma_addr_t base_addr;
 
 	nentries = roundup_pow_of_two(attr->dest_nentries);
diff --git a/drivers/net/wireless/ath/ath10k/htc.h b/drivers/net/wireless/ath/ath10k/htc.h
index e70aa38..2fcc407 100644
--- a/drivers/net/wireless/ath/ath10k/htc.h
+++ b/drivers/net/wireless/ath/ath10k/htc.h
@@ -270,13 +270,13 @@ enum ath10k_htc_ep_id {
 
 struct ath10k_htc_ops {
 	void (*target_send_suspend_complete)(struct ath10k *ar);
-};
+} __no_const;
 
 struct ath10k_htc_ep_ops {
 	void (*ep_tx_complete)(struct ath10k *, struct sk_buff *);
 	void (*ep_rx_complete)(struct ath10k *, struct sk_buff *);
 	void (*ep_tx_credits)(struct ath10k *);
-};
+} __no_const;
 
 /* service connection information */
 struct ath10k_htc_svc_conn_req {
diff --git a/drivers/net/wireless/ath/ath6kl/core.h b/drivers/net/wireless/ath/ath6kl/core.h
index 5f3acfe..e0d6a6b 100644
--- a/drivers/net/wireless/ath/ath6kl/core.h
+++ b/drivers/net/wireless/ath/ath6kl/core.h
@@ -914,7 +914,7 @@ void ath6kl_tx_data_cleanup(struct ath6kl *ar);
 
 struct ath6kl_cookie *ath6kl_alloc_cookie(struct ath6kl *ar);
 void ath6kl_free_cookie(struct ath6kl *ar, struct ath6kl_cookie *cookie);
-int ath6kl_data_tx(struct sk_buff *skb, struct net_device *dev);
+netdev_tx_t ath6kl_data_tx(struct sk_buff *skb, struct net_device *dev);
 
 struct aggr_info *aggr_init(struct ath6kl_vif *vif);
 void aggr_conn_init(struct ath6kl_vif *vif, struct aggr_info *aggr_info,
diff --git a/drivers/net/wireless/ath/ath6kl/txrx.c b/drivers/net/wireless/ath/ath6kl/txrx.c
index 40432fe..57d85b3 100644
--- a/drivers/net/wireless/ath/ath6kl/txrx.c
+++ b/drivers/net/wireless/ath/ath6kl/txrx.c
@@ -353,7 +353,7 @@ fail_ctrl_tx:
 	return status;
 }
 
-int ath6kl_data_tx(struct sk_buff *skb, struct net_device *dev)
+netdev_tx_t ath6kl_data_tx(struct sk_buff *skb, struct net_device *dev)
 {
 	struct ath6kl *ar = ath6kl_priv(dev);
 	struct ath6kl_cookie *cookie = NULL;
diff --git a/drivers/net/wireless/ath/ath9k/Kconfig b/drivers/net/wireless/ath/ath9k/Kconfig
index 40fa915..9e5e0c4 100644
--- a/drivers/net/wireless/ath/ath9k/Kconfig
+++ b/drivers/net/wireless/ath/ath9k/Kconfig
@@ -3,7 +3,6 @@ config ATH9K_HW
 config ATH9K_COMMON
 	tristate
 	select ATH_COMMON
-	select DEBUG_FS
 	select RELAY
 config ATH9K_DFS_DEBUGFS
 	def_bool y
diff --git a/drivers/net/wireless/ath/ath9k/ar9002_mac.c b/drivers/net/wireless/ath/ath9k/ar9002_mac.c
index f816909..e56cd8b 100644
--- a/drivers/net/wireless/ath/ath9k/ar9002_mac.c
+++ b/drivers/net/wireless/ath/ath9k/ar9002_mac.c
@@ -220,8 +220,8 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
 	ads->ds_txstatus6 = ads->ds_txstatus7 = 0;
 	ads->ds_txstatus8 = ads->ds_txstatus9 = 0;
 
-	ACCESS_ONCE(ads->ds_link) = i->link;
-	ACCESS_ONCE(ads->ds_data) = i->buf_addr[0];
+	ACCESS_ONCE_RW(ads->ds_link) = i->link;
+	ACCESS_ONCE_RW(ads->ds_data) = i->buf_addr[0];
 
 	ctl1 = i->buf_len[0] | (i->is_last ? 0 : AR_TxMore);
 	ctl6 = SM(i->keytype, AR_EncrType);
@@ -235,26 +235,26 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
 
 	if ((i->is_first || i->is_last) &&
 	    i->aggr != AGGR_BUF_MIDDLE && i->aggr != AGGR_BUF_LAST) {
-		ACCESS_ONCE(ads->ds_ctl2) = set11nTries(i->rates, 0)
+		ACCESS_ONCE_RW(ads->ds_ctl2) = set11nTries(i->rates, 0)
 			| set11nTries(i->rates, 1)
 			| set11nTries(i->rates, 2)
 			| set11nTries(i->rates, 3)
 			| (i->dur_update ? AR_DurUpdateEna : 0)
 			| SM(0, AR_BurstDur);
 
-		ACCESS_ONCE(ads->ds_ctl3) = set11nRate(i->rates, 0)
+		ACCESS_ONCE_RW(ads->ds_ctl3) = set11nRate(i->rates, 0)
 			| set11nRate(i->rates, 1)
 			| set11nRate(i->rates, 2)
 			| set11nRate(i->rates, 3);
 	} else {
-		ACCESS_ONCE(ads->ds_ctl2) = 0;
-		ACCESS_ONCE(ads->ds_ctl3) = 0;
+		ACCESS_ONCE_RW(ads->ds_ctl2) = 0;
+		ACCESS_ONCE_RW(ads->ds_ctl3) = 0;
 	}
 
 	if (!i->is_first) {
-		ACCESS_ONCE(ads->ds_ctl0) = 0;
-		ACCESS_ONCE(ads->ds_ctl1) = ctl1;
-		ACCESS_ONCE(ads->ds_ctl6) = ctl6;
+		ACCESS_ONCE_RW(ads->ds_ctl0) = 0;
+		ACCESS_ONCE_RW(ads->ds_ctl1) = ctl1;
+		ACCESS_ONCE_RW(ads->ds_ctl6) = ctl6;
 		return;
 	}
 
@@ -279,7 +279,7 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
 		break;
 	}
 
-	ACCESS_ONCE(ads->ds_ctl0) = (i->pkt_len & AR_FrameLen)
+	ACCESS_ONCE_RW(ads->ds_ctl0) = (i->pkt_len & AR_FrameLen)
 		| (i->flags & ATH9K_TXDESC_VMF ? AR_VirtMoreFrag : 0)
 		| SM(i->txpower[0], AR_XmitPower0)
 		| (i->flags & ATH9K_TXDESC_VEOL ? AR_VEOL : 0)
@@ -289,27 +289,27 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
 		| (i->flags & ATH9K_TXDESC_RTSENA ? AR_RTSEnable :
 		   (i->flags & ATH9K_TXDESC_CTSENA ? AR_CTSEnable : 0));
 
-	ACCESS_ONCE(ads->ds_ctl1) = ctl1;
-	ACCESS_ONCE(ads->ds_ctl6) = ctl6;
+	ACCESS_ONCE_RW(ads->ds_ctl1) = ctl1;
+	ACCESS_ONCE_RW(ads->ds_ctl6) = ctl6;
 
 	if (i->aggr == AGGR_BUF_MIDDLE || i->aggr == AGGR_BUF_LAST)
 		return;
 
-	ACCESS_ONCE(ads->ds_ctl4) = set11nPktDurRTSCTS(i->rates, 0)
+	ACCESS_ONCE_RW(ads->ds_ctl4) = set11nPktDurRTSCTS(i->rates, 0)
 		| set11nPktDurRTSCTS(i->rates, 1);
 
-	ACCESS_ONCE(ads->ds_ctl5) = set11nPktDurRTSCTS(i->rates, 2)
+	ACCESS_ONCE_RW(ads->ds_ctl5) = set11nPktDurRTSCTS(i->rates, 2)
 		| set11nPktDurRTSCTS(i->rates, 3);
 
-	ACCESS_ONCE(ads->ds_ctl7) = set11nRateFlags(i->rates, 0)
+	ACCESS_ONCE_RW(ads->ds_ctl7) = set11nRateFlags(i->rates, 0)
 		| set11nRateFlags(i->rates, 1)
 		| set11nRateFlags(i->rates, 2)
 		| set11nRateFlags(i->rates, 3)
 		| SM(i->rtscts_rate, AR_RTSCTSRate);
 
-	ACCESS_ONCE(ads->ds_ctl9) = SM(i->txpower[1], AR_XmitPower1);
-	ACCESS_ONCE(ads->ds_ctl10) = SM(i->txpower[2], AR_XmitPower2);
-	ACCESS_ONCE(ads->ds_ctl11) = SM(i->txpower[3], AR_XmitPower3);
+	ACCESS_ONCE_RW(ads->ds_ctl9) = SM(i->txpower[1], AR_XmitPower1);
+	ACCESS_ONCE_RW(ads->ds_ctl10) = SM(i->txpower[2], AR_XmitPower2);
+	ACCESS_ONCE_RW(ads->ds_ctl11) = SM(i->txpower[3], AR_XmitPower3);
 }
 
 static int ar9002_hw_proc_txdesc(struct ath_hw *ah, void *ds,
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.c b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
index da84b70..83e4978 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
@@ -39,47 +39,47 @@ ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
 	      (i->qcu << AR_TxQcuNum_S) | desc_len;
 
 	checksum += val;
-	ACCESS_ONCE(ads->info) = val;
+	ACCESS_ONCE_RW(ads->info) = val;
 
 	checksum += i->link;
-	ACCESS_ONCE(ads->link) = i->link;
+	ACCESS_ONCE_RW(ads->link) = i->link;
 
 	checksum += i->buf_addr[0];
-	ACCESS_ONCE(ads->data0) = i->buf_addr[0];
+	ACCESS_ONCE_RW(ads->data0) = i->buf_addr[0];
 	checksum += i->buf_addr[1];
-	ACCESS_ONCE(ads->data1) = i->buf_addr[1];
+	ACCESS_ONCE_RW(ads->data1) = i->buf_addr[1];
 	checksum += i->buf_addr[2];
-	ACCESS_ONCE(ads->data2) = i->buf_addr[2];
+	ACCESS_ONCE_RW(ads->data2) = i->buf_addr[2];
 	checksum += i->buf_addr[3];
-	ACCESS_ONCE(ads->data3) = i->buf_addr[3];
+	ACCESS_ONCE_RW(ads->data3) = i->buf_addr[3];
 
 	checksum += (val = (i->buf_len[0] << AR_BufLen_S) & AR_BufLen);
-	ACCESS_ONCE(ads->ctl3) = val;
+	ACCESS_ONCE_RW(ads->ctl3) = val;
 	checksum += (val = (i->buf_len[1] << AR_BufLen_S) & AR_BufLen);
-	ACCESS_ONCE(ads->ctl5) = val;
+	ACCESS_ONCE_RW(ads->ctl5) = val;
 	checksum += (val = (i->buf_len[2] << AR_BufLen_S) & AR_BufLen);
-	ACCESS_ONCE(ads->ctl7) = val;
+	ACCESS_ONCE_RW(ads->ctl7) = val;
 	checksum += (val = (i->buf_len[3] << AR_BufLen_S) & AR_BufLen);
-	ACCESS_ONCE(ads->ctl9) = val;
+	ACCESS_ONCE_RW(ads->ctl9) = val;
 
 	checksum = (u16) (((checksum & 0xffff) + (checksum >> 16)) & 0xffff);
-	ACCESS_ONCE(ads->ctl10) = checksum;
+	ACCESS_ONCE_RW(ads->ctl10) = checksum;
 
 	if (i->is_first || i->is_last) {
-		ACCESS_ONCE(ads->ctl13) = set11nTries(i->rates, 0)
+		ACCESS_ONCE_RW(ads->ctl13) = set11nTries(i->rates, 0)
 			| set11nTries(i->rates, 1)
 			| set11nTries(i->rates, 2)
 			| set11nTries(i->rates, 3)
 			| (i->dur_update ? AR_DurUpdateEna : 0)
 			| SM(0, AR_BurstDur);
 
-		ACCESS_ONCE(ads->ctl14) = set11nRate(i->rates, 0)
+		ACCESS_ONCE_RW(ads->ctl14) = set11nRate(i->rates, 0)
 			| set11nRate(i->rates, 1)
 			| set11nRate(i->rates, 2)
 			| set11nRate(i->rates, 3);
 	} else {
-		ACCESS_ONCE(ads->ctl13) = 0;
-		ACCESS_ONCE(ads->ctl14) = 0;
+		ACCESS_ONCE_RW(ads->ctl13) = 0;
+		ACCESS_ONCE_RW(ads->ctl14) = 0;
 	}
 
 	ads->ctl20 = 0;
@@ -89,17 +89,17 @@ ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
 
 	ctl17 = SM(i->keytype, AR_EncrType);
 	if (!i->is_first) {
-		ACCESS_ONCE(ads->ctl11) = 0;
-		ACCESS_ONCE(ads->ctl12) = i->is_last ? 0 : AR_TxMore;
-		ACCESS_ONCE(ads->ctl15) = 0;
-		ACCESS_ONCE(ads->ctl16) = 0;
-		ACCESS_ONCE(ads->ctl17) = ctl17;
-		ACCESS_ONCE(ads->ctl18) = 0;
-		ACCESS_ONCE(ads->ctl19) = 0;
+		ACCESS_ONCE_RW(ads->ctl11) = 0;
+		ACCESS_ONCE_RW(ads->ctl12) = i->is_last ? 0 : AR_TxMore;
+		ACCESS_ONCE_RW(ads->ctl15) = 0;
+		ACCESS_ONCE_RW(ads->ctl16) = 0;
+		ACCESS_ONCE_RW(ads->ctl17) = ctl17;
+		ACCESS_ONCE_RW(ads->ctl18) = 0;
+		ACCESS_ONCE_RW(ads->ctl19) = 0;
 		return;
 	}
 
-	ACCESS_ONCE(ads->ctl11) = (i->pkt_len & AR_FrameLen)
+	ACCESS_ONCE_RW(ads->ctl11) = (i->pkt_len & AR_FrameLen)
 		| (i->flags & ATH9K_TXDESC_VMF ? AR_VirtMoreFrag : 0)
 		| SM(i->txpower[0], AR_XmitPower0)
 		| (i->flags & ATH9K_TXDESC_VEOL ? AR_VEOL : 0)
@@ -135,26 +135,26 @@ ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
 	val = (i->flags & ATH9K_TXDESC_PAPRD) >> ATH9K_TXDESC_PAPRD_S;
 	ctl12 |= SM(val, AR_PAPRDChainMask);
 
-	ACCESS_ONCE(ads->ctl12) = ctl12;
-	ACCESS_ONCE(ads->ctl17) = ctl17;
+	ACCESS_ONCE_RW(ads->ctl12) = ctl12;
+	ACCESS_ONCE_RW(ads->ctl17) = ctl17;
 
-	ACCESS_ONCE(ads->ctl15) = set11nPktDurRTSCTS(i->rates, 0)
+	ACCESS_ONCE_RW(ads->ctl15) = set11nPktDurRTSCTS(i->rates, 0)
 		| set11nPktDurRTSCTS(i->rates, 1);
 
-	ACCESS_ONCE(ads->ctl16) = set11nPktDurRTSCTS(i->rates, 2)
+	ACCESS_ONCE_RW(ads->ctl16) = set11nPktDurRTSCTS(i->rates, 2)
 		| set11nPktDurRTSCTS(i->rates, 3);
 
-	ACCESS_ONCE(ads->ctl18) = set11nRateFlags(i->rates, 0)
+	ACCESS_ONCE_RW(ads->ctl18) = set11nRateFlags(i->rates, 0)
 		| set11nRateFlags(i->rates, 1)
 		| set11nRateFlags(i->rates, 2)
 		| set11nRateFlags(i->rates, 3)
 		| SM(i->rtscts_rate, AR_RTSCTSRate);
 
-	ACCESS_ONCE(ads->ctl19) = AR_Not_Sounding;
+	ACCESS_ONCE_RW(ads->ctl19) = AR_Not_Sounding;
 
-	ACCESS_ONCE(ads->ctl20) = SM(i->txpower[1], AR_XmitPower1);
-	ACCESS_ONCE(ads->ctl21) = SM(i->txpower[2], AR_XmitPower2);
-	ACCESS_ONCE(ads->ctl22) = SM(i->txpower[3], AR_XmitPower3);
+	ACCESS_ONCE_RW(ads->ctl20) = SM(i->txpower[1], AR_XmitPower1);
+	ACCESS_ONCE_RW(ads->ctl21) = SM(i->txpower[2], AR_XmitPower2);
+	ACCESS_ONCE_RW(ads->ctl22) = SM(i->txpower[3], AR_XmitPower3);
 }
 
 static u16 ar9003_calc_ptr_chksum(struct ar9003_txc *ads)
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 831a544..d846785 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -671,7 +671,7 @@ struct ath_hw_private_ops {
 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
 	bool (*is_aic_enabled)(struct ath_hw *ah);
 #endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */
-};
+} __no_const;
 
 /**
  * struct ath_spec_scan - parameters for Atheros spectral scan
@@ -747,7 +747,7 @@ struct ath_hw_ops {
 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
 	void (*set_bt_ant_diversity)(struct ath_hw *hw, bool enable);
 #endif
-};
+} __no_const;
 
 struct ath_nf_limits {
 	s16 max;
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 3aed43a..f415cc5 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -2594,16 +2594,18 @@ void ath9k_fill_chanctx_ops(void)
 	if (!ath9k_is_chanctx_enabled())
 		return;
 
-	ath9k_ops.hw_scan                  = ath9k_hw_scan;
-	ath9k_ops.cancel_hw_scan           = ath9k_cancel_hw_scan;
-	ath9k_ops.remain_on_channel        = ath9k_remain_on_channel;
-	ath9k_ops.cancel_remain_on_channel = ath9k_cancel_remain_on_channel;
-	ath9k_ops.add_chanctx              = ath9k_add_chanctx;
-	ath9k_ops.remove_chanctx           = ath9k_remove_chanctx;
-	ath9k_ops.change_chanctx           = ath9k_change_chanctx;
-	ath9k_ops.assign_vif_chanctx       = ath9k_assign_vif_chanctx;
-	ath9k_ops.unassign_vif_chanctx     = ath9k_unassign_vif_chanctx;
-	ath9k_ops.mgd_prepare_tx           = ath9k_mgd_prepare_tx;
+	pax_open_kernel();
+	const_cast(ath9k_ops.hw_scan)                  = ath9k_hw_scan;
+	const_cast(ath9k_ops.cancel_hw_scan)           = ath9k_cancel_hw_scan;
+	const_cast(ath9k_ops.remain_on_channel)        = ath9k_remain_on_channel;
+	const_cast(ath9k_ops.cancel_remain_on_channel) = ath9k_cancel_remain_on_channel;
+	const_cast(ath9k_ops.add_chanctx)              = ath9k_add_chanctx;
+	const_cast(ath9k_ops.remove_chanctx)           = ath9k_remove_chanctx;
+	const_cast(ath9k_ops.change_chanctx)           = ath9k_change_chanctx;
+	const_cast(ath9k_ops.assign_vif_chanctx)       = ath9k_assign_vif_chanctx;
+	const_cast(ath9k_ops.unassign_vif_chanctx)     = ath9k_unassign_vif_chanctx;
+	const_cast(ath9k_ops.mgd_prepare_tx)           = ath9k_mgd_prepare_tx;
+	pax_close_kernel();
 }
 
 #endif
diff --git a/drivers/net/wireless/ath/carl9170/carl9170.h b/drivers/net/wireless/ath/carl9170/carl9170.h
index 237d0cd..6c094fd 100644
--- a/drivers/net/wireless/ath/carl9170/carl9170.h
+++ b/drivers/net/wireless/ath/carl9170/carl9170.h
@@ -297,7 +297,7 @@ struct ar9170 {
 	unsigned long max_queue_stop_timeout[__AR9170_NUM_TXQ];
 	bool needs_full_reset;
 	bool force_usb_reset;
-	atomic_t pending_restarts;
+	atomic_unchecked_t pending_restarts;
 
 	/* interface mode settings */
 	struct list_head vif_list;
@@ -400,7 +400,7 @@ struct ar9170 {
 	struct carl9170_sta_tid __rcu *tx_ampdu_iter;
 	struct list_head tx_ampdu_list;
 	atomic_t tx_ampdu_upload;
-	atomic_t tx_ampdu_scheduler;
+	atomic_unchecked_t tx_ampdu_scheduler;
 	atomic_t tx_total_pending;
 	atomic_t tx_total_queued;
 	unsigned int tx_ampdu_list_len;
@@ -412,7 +412,7 @@ struct ar9170 {
 	spinlock_t mem_lock;
 	unsigned long *mem_bitmap;
 	atomic_t mem_free_blocks;
-	atomic_t mem_allocs;
+	atomic_unchecked_t mem_allocs;
 
 	/* rxstream mpdu merge */
 	struct ar9170_rx_head rx_plcp;
diff --git a/drivers/net/wireless/ath/carl9170/debug.c b/drivers/net/wireless/ath/carl9170/debug.c
index 6808db4..3a5df05 100644
--- a/drivers/net/wireless/ath/carl9170/debug.c
+++ b/drivers/net/wireless/ath/carl9170/debug.c
@@ -221,7 +221,7 @@ static char *carl9170_debugfs_mem_usage_read(struct ar9170 *ar, char *buf,
 
 	ADD(buf, *len, bufsize, "cookies: used:%3d / total:%3d, allocs:%d\n",
 	    bitmap_weight(ar->mem_bitmap, ar->fw.mem_blocks),
-	    ar->fw.mem_blocks, atomic_read(&ar->mem_allocs));
+	    ar->fw.mem_blocks, atomic_read_unchecked(&ar->mem_allocs));
 
 	ADD(buf, *len, bufsize, "memory: free:%3d (%3d KiB) / total:%3d KiB)\n",
 	    atomic_read(&ar->mem_free_blocks),
@@ -672,7 +672,7 @@ static char *carl9170_debugfs_bug_read(struct ar9170 *ar, char *buf,
 	ADD(buf, *ret, bufsize, "reported firmware BUGs:%d\n",
 		ar->fw.bug_counter);
 	ADD(buf, *ret, bufsize, "pending restart requests:%d\n",
-		atomic_read(&ar->pending_restarts));
+		atomic_read_unchecked(&ar->pending_restarts));
 	return buf;
 }
 __DEBUGFS_DECLARE_RW_FILE(bug, 400, CARL9170_STOPPED);
@@ -779,7 +779,7 @@ DEBUGFS_READONLY_FILE(usb_rx_pool_urbs, 20, "%d",
 DEBUGFS_READONLY_FILE(tx_total_queued, 20, "%d",
 		      atomic_read(&ar->tx_total_queued));
 DEBUGFS_READONLY_FILE(tx_ampdu_scheduler, 20, "%d",
-		      atomic_read(&ar->tx_ampdu_scheduler));
+		      atomic_read_unchecked(&ar->tx_ampdu_scheduler));
 
 DEBUGFS_READONLY_FILE(tx_total_pending, 20, "%d",
 		      atomic_read(&ar->tx_total_pending));
diff --git a/drivers/net/wireless/ath/carl9170/main.c b/drivers/net/wireless/ath/carl9170/main.c
index 4d1527a..4f60738 100644
--- a/drivers/net/wireless/ath/carl9170/main.c
+++ b/drivers/net/wireless/ath/carl9170/main.c
@@ -320,7 +320,7 @@ static void carl9170_zap_queues(struct ar9170 *ar)
 	rcu_read_unlock();
 
 	atomic_set(&ar->tx_ampdu_upload, 0);
-	atomic_set(&ar->tx_ampdu_scheduler, 0);
+	atomic_set_unchecked(&ar->tx_ampdu_scheduler, 0);
 	atomic_set(&ar->tx_total_pending, 0);
 	atomic_set(&ar->tx_total_queued, 0);
 	atomic_set(&ar->mem_free_blocks, ar->fw.mem_blocks);
@@ -370,7 +370,7 @@ static int carl9170_op_start(struct ieee80211_hw *hw)
 		ar->max_queue_stop_timeout[i] = 0;
 	}
 
-	atomic_set(&ar->mem_allocs, 0);
+	atomic_set_unchecked(&ar->mem_allocs, 0);
 
 	err = carl9170_usb_open(ar);
 	if (err)
@@ -490,7 +490,7 @@ static void carl9170_restart_work(struct work_struct *work)
 
 	if (!err && !ar->force_usb_reset) {
 		ar->restart_counter++;
-		atomic_set(&ar->pending_restarts, 0);
+		atomic_set_unchecked(&ar->pending_restarts, 0);
 
 		ieee80211_restart_hw(ar->hw);
 	} else {
@@ -513,7 +513,7 @@ void carl9170_restart(struct ar9170 *ar, const enum carl9170_restart_reasons r)
 	 * By ignoring these *surplus* reset events, the device won't be
 	 * killed again, right after it has recovered.
 	 */
-	if (atomic_inc_return(&ar->pending_restarts) > 1) {
+	if (atomic_inc_return_unchecked(&ar->pending_restarts) > 1) {
 		dev_dbg(&ar->udev->dev, "ignoring restart (%d)\n", r);
 		return;
 	}
@@ -1820,7 +1820,7 @@ void *carl9170_alloc(size_t priv_size)
 	spin_lock_init(&ar->tx_ampdu_list_lock);
 	spin_lock_init(&ar->mem_lock);
 	spin_lock_init(&ar->state_lock);
-	atomic_set(&ar->pending_restarts, 0);
+	atomic_set_unchecked(&ar->pending_restarts, 0);
 	ar->vifs = 0;
 	for (i = 0; i < ar->hw->queues; i++) {
 		skb_queue_head_init(&ar->tx_status[i]);
diff --git a/drivers/net/wireless/ath/carl9170/tx.c b/drivers/net/wireless/ath/carl9170/tx.c
index ae86a600..28696b2 100644
--- a/drivers/net/wireless/ath/carl9170/tx.c
+++ b/drivers/net/wireless/ath/carl9170/tx.c
@@ -193,7 +193,7 @@ static int carl9170_alloc_dev_space(struct ar9170 *ar, struct sk_buff *skb)
 	unsigned int chunks;
 	int cookie = -1;
 
-	atomic_inc(&ar->mem_allocs);
+	atomic_inc_unchecked(&ar->mem_allocs);
 
 	chunks = DIV_ROUND_UP(skb->len, ar->fw.mem_block_size);
 	if (unlikely(atomic_sub_return(chunks, &ar->mem_free_blocks) < 0)) {
@@ -1130,7 +1130,7 @@ static void carl9170_tx_ampdu(struct ar9170 *ar)
 	unsigned int i = 0, done_ampdus = 0;
 	u16 seq, queue, tmpssn;
 
-	atomic_inc(&ar->tx_ampdu_scheduler);
+	atomic_inc_unchecked(&ar->tx_ampdu_scheduler);
 	ar->tx_ampdu_schedule = false;
 
 	if (atomic_read(&ar->tx_ampdu_upload))
diff --git a/drivers/net/wireless/ath/wil6210/pcie_bus.c b/drivers/net/wireless/ath/wil6210/pcie_bus.c
index e36f2a0..462af92 100644
--- a/drivers/net/wireless/ath/wil6210/pcie_bus.c
+++ b/drivers/net/wireless/ath/wil6210/pcie_bus.c
@@ -152,7 +152,7 @@ static int wil_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	struct wil6210_priv *wil;
 	struct device *dev = &pdev->dev;
 	int rc;
-	const struct wil_platform_rops rops = {
+	static const struct wil_platform_rops rops = {
 		.ramdump = wil_platform_rop_ramdump,
 		.fw_recovery = wil_platform_rop_fw_recovery,
 	};
diff --git a/drivers/net/wireless/ath/wil6210/wil_platform.h b/drivers/net/wireless/ath/wil6210/wil_platform.h
index 9a949d9..1307d61 100644
--- a/drivers/net/wireless/ath/wil6210/wil_platform.h
+++ b/drivers/net/wireless/ath/wil6210/wil_platform.h
@@ -29,7 +29,7 @@ struct wil_platform_ops {
 	int (*resume)(void *handle);
 	void (*uninit)(void *handle);
 	int (*notify_crash)(void *handle);
-};
+} __no_const;
 
 /**
  * struct wil_platform_rops - wil platform module callbacks from
diff --git a/drivers/net/wireless/atmel/at76c50x-usb.c b/drivers/net/wireless/atmel/at76c50x-usb.c
index 1efb1d6..66134a3 100644
--- a/drivers/net/wireless/atmel/at76c50x-usb.c
+++ b/drivers/net/wireless/atmel/at76c50x-usb.c
@@ -353,7 +353,7 @@ static int at76_dfu_get_state(struct usb_device *udev, u8 *state)
 }
 
 /* Convert timeout from the DFU status to jiffies */
-static inline unsigned long at76_get_timeout(struct dfu_status *s)
+static inline unsigned long __intentional_overflow(-1) at76_get_timeout(struct dfu_status *s)
 {
 	return msecs_to_jiffies((s->poll_timeout[2] << 16)
 				| (s->poll_timeout[1] << 8)
diff --git a/drivers/net/wireless/atmel/atmel.c b/drivers/net/wireless/atmel/atmel.c
index 6a1f03c..8a14da4 100644
--- a/drivers/net/wireless/atmel/atmel.c
+++ b/drivers/net/wireless/atmel/atmel.c
@@ -1663,9 +1663,10 @@ EXPORT_SYMBOL(stop_atmel_card);
 
 static int atmel_set_essid(struct net_device *dev,
 			   struct iw_request_info *info,
-			   struct iw_point *dwrq,
+			   union iwreq_data *wrqu,
 			   char *extra)
 {
+	struct iw_point *dwrq = &wrqu->essid;
 	struct atmel_private *priv = netdev_priv(dev);
 
 	/* Check if we asked for `any' */
@@ -1691,9 +1692,10 @@ static int atmel_set_essid(struct net_device *dev,
 
 static int atmel_get_essid(struct net_device *dev,
 			   struct iw_request_info *info,
-			   struct iw_point *dwrq,
+			   union iwreq_data *wrqu,
 			   char *extra)
 {
+	struct iw_point *dwrq = &wrqu->essid;
 	struct atmel_private *priv = netdev_priv(dev);
 
 	/* Get the current SSID */
@@ -1712,9 +1714,10 @@ static int atmel_get_essid(struct net_device *dev,
 
 static int atmel_get_wap(struct net_device *dev,
 			 struct iw_request_info *info,
-			 struct sockaddr *awrq,
+			 union iwreq_data *wrqu,
 			 char *extra)
 {
+	struct sockaddr *awrq = &wrqu->ap_addr;
 	struct atmel_private *priv = netdev_priv(dev);
 	memcpy(awrq->sa_data, priv->CurrentBSSID, ETH_ALEN);
 	awrq->sa_family = ARPHRD_ETHER;
@@ -1724,9 +1727,10 @@ static int atmel_get_wap(struct net_device *dev,
 
 static int atmel_set_encode(struct net_device *dev,
 			    struct iw_request_info *info,
-			    struct iw_point *dwrq,
+			    union iwreq_data *wrqu,
 			    char *extra)
 {
+	struct iw_point *dwrq = &wrqu->encoding;
 	struct atmel_private *priv = netdev_priv(dev);
 
 	/* Basic checking: do we have a key to set ?
@@ -1813,9 +1817,10 @@ static int atmel_set_encode(struct net_device *dev,
 
 static int atmel_get_encode(struct net_device *dev,
 			    struct iw_request_info *info,
-			    struct iw_point *dwrq,
+			    union iwreq_data *wrqu,
 			    char *extra)
 {
+	struct iw_point *dwrq = &wrqu->encoding;
 	struct atmel_private *priv = netdev_priv(dev);
 	int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
 
@@ -2023,18 +2028,20 @@ static int atmel_get_auth(struct net_device *dev,
 
 static int atmel_get_name(struct net_device *dev,
 			  struct iw_request_info *info,
-			  char *cwrq,
+			  union iwreq_data *wrqu,
 			  char *extra)
 {
+	char *cwrq = wrqu->name;
 	strcpy(cwrq, "IEEE 802.11-DS");
 	return 0;
 }
 
 static int atmel_set_rate(struct net_device *dev,
 			  struct iw_request_info *info,
-			  struct iw_param *vwrq,
+			  union iwreq_data *wrqu,
 			  char *extra)
 {
+	struct iw_param *vwrq = &wrqu->bitrate;
 	struct atmel_private *priv = netdev_priv(dev);
 
 	if (vwrq->fixed == 0) {
@@ -2073,9 +2080,10 @@ static int atmel_set_rate(struct net_device *dev,
 
 static int atmel_set_mode(struct net_device *dev,
 			  struct iw_request_info *info,
-			  __u32 *uwrq,
+			  union iwreq_data *wrqu,
 			  char *extra)
 {
+	__u32 *uwrq = &wrqu->mode;
 	struct atmel_private *priv = netdev_priv(dev);
 
 	if (*uwrq != IW_MODE_ADHOC && *uwrq != IW_MODE_INFRA)
@@ -2087,9 +2095,10 @@ static int atmel_set_mode(struct net_device *dev,
 
 static int atmel_get_mode(struct net_device *dev,
 			  struct iw_request_info *info,
-			  __u32 *uwrq,
+			  union iwreq_data *wrqu,
 			  char *extra)
 {
+	__u32 *uwrq = &wrqu->mode;
 	struct atmel_private *priv = netdev_priv(dev);
 
 	*uwrq = priv->operating_mode;
@@ -2098,9 +2107,10 @@ static int atmel_get_mode(struct net_device *dev,
 
 static int atmel_get_rate(struct net_device *dev,
 			 struct iw_request_info *info,
-			 struct iw_param *vwrq,
+			 union iwreq_data *wrqu,
 			 char *extra)
 {
+	struct iw_param *vwrq = &wrqu->bitrate;
 	struct atmel_private *priv = netdev_priv(dev);
 
 	if (priv->auto_tx_rate) {
@@ -2128,9 +2138,10 @@ static int atmel_get_rate(struct net_device *dev,
 
 static int atmel_set_power(struct net_device *dev,
 			   struct iw_request_info *info,
-			   struct iw_param *vwrq,
+			   union iwreq_data *wrqu,
 			   char *extra)
 {
+	struct iw_param *vwrq = &wrqu->power;
 	struct atmel_private *priv = netdev_priv(dev);
 	priv->power_mode = vwrq->disabled ? 0 : 1;
 	return -EINPROGRESS;
@@ -2138,9 +2149,10 @@ static int atmel_set_power(struct net_device *dev,
 
 static int atmel_get_power(struct net_device *dev,
 			   struct iw_request_info *info,
-			   struct iw_param *vwrq,
+			   union iwreq_data *wrqu,
 			   char *extra)
 {
+	struct iw_param *vwrq = &wrqu->power;
 	struct atmel_private *priv = netdev_priv(dev);
 	vwrq->disabled = priv->power_mode ? 0 : 1;
 	vwrq->flags = IW_POWER_ON;
@@ -2149,9 +2161,10 @@ static int atmel_get_power(struct net_device *dev,
 
 static int atmel_set_retry(struct net_device *dev,
 			   struct iw_request_info *info,
-			   struct iw_param *vwrq,
+			   union iwreq_data *wrqu,
 			   char *extra)
 {
+	struct iw_param *vwrq = &wrqu->retry;
 	struct atmel_private *priv = netdev_priv(dev);
 
 	if (!vwrq->disabled && (vwrq->flags & IW_RETRY_LIMIT)) {
@@ -2172,9 +2185,10 @@ static int atmel_set_retry(struct net_device *dev,
 
 static int atmel_get_retry(struct net_device *dev,
 			   struct iw_request_info *info,
-			   struct iw_param *vwrq,
+			   union iwreq_data *wrqu,
 			   char *extra)
 {
+	struct iw_param *vwrq = &wrqu->retry;
 	struct atmel_private *priv = netdev_priv(dev);
 
 	vwrq->disabled = 0;      /* Can't be disabled */
@@ -2195,9 +2209,10 @@ static int atmel_get_retry(struct net_device *dev,
 
 static int atmel_set_rts(struct net_device *dev,
 			 struct iw_request_info *info,
-			 struct iw_param *vwrq,
+			 union iwreq_data *wrqu,
 			 char *extra)
 {
+	struct iw_param *vwrq = &wrqu->rts;
 	struct atmel_private *priv = netdev_priv(dev);
 	int rthr = vwrq->value;
 
@@ -2213,9 +2228,10 @@ static int atmel_set_rts(struct net_device *dev,
 
 static int atmel_get_rts(struct net_device *dev,
 			 struct iw_request_info *info,
-			 struct iw_param *vwrq,
+			 union iwreq_data *wrqu,
 			 char *extra)
 {
+	struct iw_param *vwrq = &wrqu->rts;
 	struct atmel_private *priv = netdev_priv(dev);
 
 	vwrq->value = priv->rts_threshold;
@@ -2227,9 +2243,10 @@ static int atmel_get_rts(struct net_device *dev,
 
 static int atmel_set_frag(struct net_device *dev,
 			  struct iw_request_info *info,
-			  struct iw_param *vwrq,
+			  union iwreq_data *wrqu,
 			  char *extra)
 {
+	struct iw_param *vwrq = &wrqu->frag;
 	struct atmel_private *priv = netdev_priv(dev);
 	int fthr = vwrq->value;
 
@@ -2246,9 +2263,10 @@ static int atmel_set_frag(struct net_device *dev,
 
 static int atmel_get_frag(struct net_device *dev,
 			  struct iw_request_info *info,
-			  struct iw_param *vwrq,
+			  union iwreq_data *wrqu,
 			  char *extra)
 {
+	struct iw_param *vwrq = &wrqu->frag;
 	struct atmel_private *priv = netdev_priv(dev);
 
 	vwrq->value = priv->frag_threshold;
@@ -2260,9 +2278,10 @@ static int atmel_get_frag(struct net_device *dev,
 
 static int atmel_set_freq(struct net_device *dev,
 			  struct iw_request_info *info,
-			  struct iw_freq *fwrq,
+			  union iwreq_data *wrqu,
 			  char *extra)
 {
+	struct iw_freq *fwrq = &wrqu->freq;
 	struct atmel_private *priv = netdev_priv(dev);
 	int rc = -EINPROGRESS;		/* Call commit handler */
 
@@ -2290,9 +2309,10 @@ static int atmel_set_freq(struct net_device *dev,
 
 static int atmel_get_freq(struct net_device *dev,
 			  struct iw_request_info *info,
-			  struct iw_freq *fwrq,
+			  union iwreq_data *wrqu,
 			  char *extra)
 {
+	struct iw_freq *fwrq = &wrqu->freq;
 	struct atmel_private *priv = netdev_priv(dev);
 
 	fwrq->m = priv->channel;
@@ -2302,7 +2322,7 @@ static int atmel_get_freq(struct net_device *dev,
 
 static int atmel_set_scan(struct net_device *dev,
 			  struct iw_request_info *info,
-			  struct iw_point *dwrq,
+			  union iwreq_data *dwrq,
 			  char *extra)
 {
 	struct atmel_private *priv = netdev_priv(dev);
@@ -2340,9 +2360,10 @@ static int atmel_set_scan(struct net_device *dev,
 
 static int atmel_get_scan(struct net_device *dev,
 			  struct iw_request_info *info,
-			  struct iw_point *dwrq,
+			  union iwreq_data *wrqu,
 			  char *extra)
 {
+	struct iw_point *dwrq = &wrqu->data;
 	struct atmel_private *priv = netdev_priv(dev);
 	int i;
 	char *current_ev = extra;
@@ -2411,9 +2432,10 @@ static int atmel_get_scan(struct net_device *dev,
 
 static int atmel_get_range(struct net_device *dev,
 			   struct iw_request_info *info,
-			   struct iw_point *dwrq,
+			   union iwreq_data *wrqu,
 			   char *extra)
 {
+	struct iw_point *dwrq = &wrqu->data;
 	struct atmel_private *priv = netdev_priv(dev);
 	struct iw_range *range = (struct iw_range *) extra;
 	int k, i, j;
@@ -2485,9 +2507,10 @@ static int atmel_get_range(struct net_device *dev,
 
 static int atmel_set_wap(struct net_device *dev,
 			 struct iw_request_info *info,
-			 struct sockaddr *awrq,
+			 union iwreq_data *wrqu,
 			 char *extra)
 {
+	struct sockaddr *awrq = &wrqu->ap_addr;
 	struct atmel_private *priv = netdev_priv(dev);
 	int i;
 	static const u8 any[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
@@ -2527,7 +2550,7 @@ static int atmel_set_wap(struct net_device *dev,
 
 static int atmel_config_commit(struct net_device *dev,
 			       struct iw_request_info *info,	/* NULL */
-			       void *zwrq,			/* NULL */
+			       union iwreq_data *zwrq,		/* NULL */
 			       char *extra)			/* NULL */
 {
 	return atmel_open(dev);
@@ -2535,61 +2558,61 @@ static int atmel_config_commit(struct net_device *dev,
 
 static const iw_handler atmel_handler[] =
 {
-	(iw_handler) atmel_config_commit,	/* SIOCSIWCOMMIT */
-	(iw_handler) atmel_get_name,		/* SIOCGIWNAME */
-	(iw_handler) NULL,			/* SIOCSIWNWID */
-	(iw_handler) NULL,			/* SIOCGIWNWID */
-	(iw_handler) atmel_set_freq,		/* SIOCSIWFREQ */
-	(iw_handler) atmel_get_freq,		/* SIOCGIWFREQ */
-	(iw_handler) atmel_set_mode,		/* SIOCSIWMODE */
-	(iw_handler) atmel_get_mode,		/* SIOCGIWMODE */
-	(iw_handler) NULL,			/* SIOCSIWSENS */
-	(iw_handler) NULL,			/* SIOCGIWSENS */
-	(iw_handler) NULL,			/* SIOCSIWRANGE */
-	(iw_handler) atmel_get_range,           /* SIOCGIWRANGE */
-	(iw_handler) NULL,			/* SIOCSIWPRIV */
-	(iw_handler) NULL,			/* SIOCGIWPRIV */
-	(iw_handler) NULL,			/* SIOCSIWSTATS */
-	(iw_handler) NULL,			/* SIOCGIWSTATS */
-	(iw_handler) NULL,			/* SIOCSIWSPY */
-	(iw_handler) NULL,			/* SIOCGIWSPY */
-	(iw_handler) NULL,			/* -- hole -- */
-	(iw_handler) NULL,			/* -- hole -- */
-	(iw_handler) atmel_set_wap,		/* SIOCSIWAP */
-	(iw_handler) atmel_get_wap,		/* SIOCGIWAP */
-	(iw_handler) NULL,			/* -- hole -- */
-	(iw_handler) NULL,			/* SIOCGIWAPLIST */
-	(iw_handler) atmel_set_scan,		/* SIOCSIWSCAN */
-	(iw_handler) atmel_get_scan,		/* SIOCGIWSCAN */
-	(iw_handler) atmel_set_essid,		/* SIOCSIWESSID */
-	(iw_handler) atmel_get_essid,		/* SIOCGIWESSID */
-	(iw_handler) NULL,			/* SIOCSIWNICKN */
-	(iw_handler) NULL,			/* SIOCGIWNICKN */
-	(iw_handler) NULL,			/* -- hole -- */
-	(iw_handler) NULL,			/* -- hole -- */
-	(iw_handler) atmel_set_rate,		/* SIOCSIWRATE */
-	(iw_handler) atmel_get_rate,		/* SIOCGIWRATE */
-	(iw_handler) atmel_set_rts,		/* SIOCSIWRTS */
-	(iw_handler) atmel_get_rts,		/* SIOCGIWRTS */
-	(iw_handler) atmel_set_frag,		/* SIOCSIWFRAG */
-	(iw_handler) atmel_get_frag,		/* SIOCGIWFRAG */
-	(iw_handler) NULL,			/* SIOCSIWTXPOW */
-	(iw_handler) NULL,			/* SIOCGIWTXPOW */
-	(iw_handler) atmel_set_retry,		/* SIOCSIWRETRY */
-	(iw_handler) atmel_get_retry,		/* SIOCGIWRETRY */
-	(iw_handler) atmel_set_encode,		/* SIOCSIWENCODE */
-	(iw_handler) atmel_get_encode,		/* SIOCGIWENCODE */
-	(iw_handler) atmel_set_power,		/* SIOCSIWPOWER */
-	(iw_handler) atmel_get_power,		/* SIOCGIWPOWER */
-	(iw_handler) NULL,			/* -- hole -- */
-	(iw_handler) NULL,			/* -- hole -- */
-	(iw_handler) NULL,			/* SIOCSIWGENIE */
-	(iw_handler) NULL,			/* SIOCGIWGENIE */
-	(iw_handler) atmel_set_auth,		/* SIOCSIWAUTH */
-	(iw_handler) atmel_get_auth,		/* SIOCGIWAUTH */
-	(iw_handler) atmel_set_encodeext,	/* SIOCSIWENCODEEXT */
-	(iw_handler) atmel_get_encodeext,	/* SIOCGIWENCODEEXT */
-	(iw_handler) NULL,			/* SIOCSIWPMKSA */
+	atmel_config_commit,	/* SIOCSIWCOMMIT */
+	atmel_get_name,		/* SIOCGIWNAME */
+	NULL,			/* SIOCSIWNWID */
+	NULL,			/* SIOCGIWNWID */
+	atmel_set_freq,		/* SIOCSIWFREQ */
+	atmel_get_freq,		/* SIOCGIWFREQ */
+	atmel_set_mode,		/* SIOCSIWMODE */
+	atmel_get_mode,		/* SIOCGIWMODE */
+	NULL,			/* SIOCSIWSENS */
+	NULL,			/* SIOCGIWSENS */
+	NULL,			/* SIOCSIWRANGE */
+	atmel_get_range,           /* SIOCGIWRANGE */
+	NULL,			/* SIOCSIWPRIV */
+	NULL,			/* SIOCGIWPRIV */
+	NULL,			/* SIOCSIWSTATS */
+	NULL,			/* SIOCGIWSTATS */
+	NULL,			/* SIOCSIWSPY */
+	NULL,			/* SIOCGIWSPY */
+	NULL,			/* -- hole -- */
+	NULL,			/* -- hole -- */
+	atmel_set_wap,		/* SIOCSIWAP */
+	atmel_get_wap,		/* SIOCGIWAP */
+	NULL,			/* -- hole -- */
+	NULL,			/* SIOCGIWAPLIST */
+	atmel_set_scan,		/* SIOCSIWSCAN */
+	atmel_get_scan,		/* SIOCGIWSCAN */
+	atmel_set_essid,		/* SIOCSIWESSID */
+	atmel_get_essid,		/* SIOCGIWESSID */
+	NULL,			/* SIOCSIWNICKN */
+	NULL,			/* SIOCGIWNICKN */
+	NULL,			/* -- hole -- */
+	NULL,			/* -- hole -- */
+	atmel_set_rate,		/* SIOCSIWRATE */
+	atmel_get_rate,		/* SIOCGIWRATE */
+	atmel_set_rts,		/* SIOCSIWRTS */
+	atmel_get_rts,		/* SIOCGIWRTS */
+	atmel_set_frag,		/* SIOCSIWFRAG */
+	atmel_get_frag,		/* SIOCGIWFRAG */
+	NULL,			/* SIOCSIWTXPOW */
+	NULL,			/* SIOCGIWTXPOW */
+	atmel_set_retry,		/* SIOCSIWRETRY */
+	atmel_get_retry,		/* SIOCGIWRETRY */
+	atmel_set_encode,		/* SIOCSIWENCODE */
+	atmel_get_encode,		/* SIOCGIWENCODE */
+	atmel_set_power,		/* SIOCSIWPOWER */
+	atmel_get_power,		/* SIOCGIWPOWER */
+	NULL,			/* -- hole -- */
+	NULL,			/* -- hole -- */
+	NULL,			/* SIOCSIWGENIE */
+	NULL,			/* SIOCGIWGENIE */
+	atmel_set_auth,		/* SIOCSIWAUTH */
+	atmel_get_auth,		/* SIOCGIWAUTH */
+	atmel_set_encodeext,	/* SIOCSIWENCODEEXT */
+	atmel_get_encodeext,	/* SIOCGIWENCODEEXT */
+	NULL,			/* SIOCSIWPMKSA */
 };
 
 static const iw_handler atmel_private_handler[] =
diff --git a/drivers/net/wireless/broadcom/b43/phy_lp.c b/drivers/net/wireless/broadcom/b43/phy_lp.c
index 058a9f2..d5cb1ba 100644
--- a/drivers/net/wireless/broadcom/b43/phy_lp.c
+++ b/drivers/net/wireless/broadcom/b43/phy_lp.c
@@ -2502,7 +2502,7 @@ static int lpphy_b2063_tune(struct b43_wldev *dev,
 {
 	struct ssb_bus *bus = dev->dev->sdev->bus;
 
-	static const struct b206x_channel *chandata = NULL;
+	const struct b206x_channel *chandata = NULL;
 	u32 crystal_freq = bus->chipco.pmu.crystalfreq * 1000;
 	u32 freqref, vco_freq, val1, val2, val3, timeout, timeoutref, count;
 	u16 old_comm15, scale;
diff --git a/drivers/net/wireless/broadcom/b43legacy/main.c b/drivers/net/wireless/broadcom/b43legacy/main.c
index afc1fb3..79698d1 100644
--- a/drivers/net/wireless/broadcom/b43legacy/main.c
+++ b/drivers/net/wireless/broadcom/b43legacy/main.c
@@ -1304,8 +1304,9 @@ static void handle_irq_ucode_debug(struct b43legacy_wldev *dev)
 }
 
 /* Interrupt handler bottom-half */
-static void b43legacy_interrupt_tasklet(struct b43legacy_wldev *dev)
+static void b43legacy_interrupt_tasklet(unsigned long _dev)
 {
+	struct b43legacy_wldev *dev = (struct b43legacy_wldev *)_dev;
 	u32 reason;
 	u32 dma_reason[ARRAY_SIZE(dev->dma_reason)];
 	u32 merged_dma_reason = 0;
@@ -3775,7 +3776,7 @@ static int b43legacy_one_core_attach(struct ssb_device *dev,
 	b43legacy_set_status(wldev, B43legacy_STAT_UNINIT);
 	wldev->bad_frames_preempt = modparam_bad_frames_preempt;
 	tasklet_init(&wldev->isr_tasklet,
-		     (void (*)(unsigned long))b43legacy_interrupt_tasklet,
+		     b43legacy_interrupt_tasklet,
 		     (unsigned long)wldev);
 	if (modparam_pio)
 		wldev->__using_pio = true;
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
index d5c2a27..4ed31de 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
@@ -5000,6 +5000,50 @@ static struct cfg80211_ops brcmf_cfg80211_ops = {
 	.tdls_oper = brcmf_cfg80211_tdls_oper,
 };
 
+static struct cfg80211_ops brcmf_cfg80211_ops2 = {
+	.add_virtual_intf = brcmf_cfg80211_add_iface,
+	.del_virtual_intf = brcmf_cfg80211_del_iface,
+	.change_virtual_intf = brcmf_cfg80211_change_iface,
+	.scan = brcmf_cfg80211_scan,
+	.set_wiphy_params = brcmf_cfg80211_set_wiphy_params,
+	.join_ibss = brcmf_cfg80211_join_ibss,
+	.leave_ibss = brcmf_cfg80211_leave_ibss,
+	.get_station = brcmf_cfg80211_get_station,
+	.dump_station = brcmf_cfg80211_dump_station,
+	.set_tx_power = brcmf_cfg80211_set_tx_power,
+	.get_tx_power = brcmf_cfg80211_get_tx_power,
+	.add_key = brcmf_cfg80211_add_key,
+	.del_key = brcmf_cfg80211_del_key,
+	.get_key = brcmf_cfg80211_get_key,
+	.set_default_key = brcmf_cfg80211_config_default_key,
+	.set_default_mgmt_key = brcmf_cfg80211_config_default_mgmt_key,
+	.set_power_mgmt = brcmf_cfg80211_set_power_mgmt,
+	.connect = brcmf_cfg80211_connect,
+	.disconnect = brcmf_cfg80211_disconnect,
+	.suspend = brcmf_cfg80211_suspend,
+	.resume = brcmf_cfg80211_resume,
+	.set_pmksa = brcmf_cfg80211_set_pmksa,
+	.del_pmksa = brcmf_cfg80211_del_pmksa,
+	.flush_pmksa = brcmf_cfg80211_flush_pmksa,
+	.start_ap = brcmf_cfg80211_start_ap,
+	.stop_ap = brcmf_cfg80211_stop_ap,
+	.change_beacon = brcmf_cfg80211_change_beacon,
+	.del_station = brcmf_cfg80211_del_station,
+	.change_station = brcmf_cfg80211_change_station,
+	.sched_scan_start = brcmf_cfg80211_sched_scan_start,
+	.sched_scan_stop = brcmf_cfg80211_sched_scan_stop,
+	.mgmt_frame_register = brcmf_cfg80211_mgmt_frame_register,
+	.mgmt_tx = brcmf_cfg80211_mgmt_tx,
+	.remain_on_channel = brcmf_p2p_remain_on_channel,
+	.cancel_remain_on_channel = brcmf_cfg80211_cancel_remain_on_channel,
+	.start_p2p_device = brcmf_p2p_start_device,
+	.stop_p2p_device = brcmf_p2p_stop_device,
+	.crit_proto_start = brcmf_cfg80211_crit_proto_start,
+	.crit_proto_stop = brcmf_cfg80211_crit_proto_stop,
+	.tdls_oper = brcmf_cfg80211_tdls_oper,
+	.set_rekey_data = brcmf_cfg80211_set_rekey_data,
+};
+
 struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
 					   enum nl80211_iftype type,
 					   bool pm_block)
@@ -6622,7 +6666,7 @@ struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
 	struct net_device *ndev = brcmf_get_ifp(drvr, 0)->ndev;
 	struct brcmf_cfg80211_info *cfg;
 	struct wiphy *wiphy;
-	struct cfg80211_ops *ops;
+	struct cfg80211_ops *ops = &brcmf_cfg80211_ops;
 	struct brcmf_cfg80211_vif *vif;
 	struct brcmf_if *ifp;
 	s32 err = 0;
@@ -6634,15 +6678,10 @@ struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
 		return NULL;
 	}
 
-	ops = kzalloc(sizeof(*ops), GFP_KERNEL);
-	if (!ops)
-		return NULL;
-
-	memcpy(ops, &brcmf_cfg80211_ops, sizeof(*ops));
 	ifp = netdev_priv(ndev);
 #ifdef CONFIG_PM
 	if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_GTK))
-		ops->set_rekey_data = brcmf_cfg80211_set_rekey_data;
+		ops = &brcmf_cfg80211_ops2;
 #endif
 	wiphy = wiphy_new(ops, sizeof(struct brcmf_cfg80211_info));
 	if (!wiphy) {
@@ -6781,7 +6820,6 @@ priv_out:
 	ifp->vif = NULL;
 wiphy_out:
 	brcmf_free_wiphy(wiphy);
-	kfree(ops);
 	return NULL;
 }
 
@@ -6792,7 +6830,6 @@ void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg)
 
 	brcmf_btcoex_detach(cfg);
 	wiphy_unregister(cfg->wiphy);
-	kfree(cfg->ops);
 	wl_deinit_priv(cfg);
 	brcmf_free_wiphy(cfg->wiphy);
 }
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_cmn.c b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_cmn.c
index 1c4e9dd..a6388e7 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_cmn.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_cmn.c
@@ -394,8 +394,9 @@ struct shared_phy *wlc_phy_shared_attach(struct shared_phy_params *shp)
 	return sh;
 }
 
-static void wlc_phy_timercb_phycal(struct brcms_phy *pi)
+static void wlc_phy_timercb_phycal(void *_pi)
 {
+	struct brcms_phy *pi = _pi;
 	uint delay = 5;
 
 	if (PHY_PERICAL_MPHASE_PENDING(pi)) {
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy_shim.c b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy_shim.c
index a0de5db..b723817 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy_shim.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy_shim.c
@@ -57,12 +57,11 @@ void wlc_phy_shim_detach(struct phy_shim_info *physhim)
 }
 
 struct wlapi_timer *wlapi_init_timer(struct phy_shim_info *physhim,
-				     void (*fn)(struct brcms_phy *pi),
+				     void (*fn)(void *pi),
 				     void *arg, const char *name)
 {
 	return (struct wlapi_timer *)
-			brcms_init_timer(physhim->wl, (void (*)(void *))fn,
-					 arg, name);
+			brcms_init_timer(physhim->wl, fn, arg, name);
 }
 
 void wlapi_free_timer(struct wlapi_timer *t)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy_shim.h b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy_shim.h
index dd87747..27d0934 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy_shim.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy_shim.h
@@ -131,7 +131,7 @@ void wlc_phy_shim_detach(struct phy_shim_info *physhim);
 
 /* PHY to WL utility functions */
 struct wlapi_timer *wlapi_init_timer(struct phy_shim_info *physhim,
-				     void (*fn)(struct brcms_phy *pi),
+				     void (*fn)(void *pi),
 				     void *arg, const char *name);
 void wlapi_free_timer(struct wlapi_timer *t);
 void wlapi_add_timer(struct wlapi_timer *t, uint ms, int periodic);
diff --git a/drivers/net/wireless/cisco/airo.c b/drivers/net/wireless/cisco/airo.c
index d2353f6..03379d9 100644
--- a/drivers/net/wireless/cisco/airo.c
+++ b/drivers/net/wireless/cisco/airo.c
@@ -4779,7 +4779,7 @@ static int get_dec_u16( char *buffer, int *start, int limit ) {
 }
 
 static int airo_config_commit(struct net_device *dev,
-			      struct iw_request_info *info, void *zwrq,
+			      struct iw_request_info *info, union iwreq_data *zwrq,
 			      char *extra);
 
 static inline int sniffing_mode(struct airo_info *ai)
@@ -5766,9 +5766,11 @@ static int airo_get_quality (StatusRid *status_rid, CapabilityRid *cap_rid)
  */
 static int airo_get_name(struct net_device *dev,
 			 struct iw_request_info *info,
-			 char *cwrq,
+			 union iwreq_data *wrqu,
 			 char *extra)
 {
+	char *cwrq = wrqu->name;
+
 	strcpy(cwrq, "IEEE 802.11-DS");
 	return 0;
 }
@@ -5779,9 +5781,10 @@ static int airo_get_name(struct net_device *dev,
  */
 static int airo_set_freq(struct net_device *dev,
 			 struct iw_request_info *info,
-			 struct iw_freq *fwrq,
+			 union iwreq_data *wrqu,
 			 char *extra)
 {
+	struct iw_freq *fwrq = &wrqu->freq;
 	struct airo_info *local = dev->ml_priv;
 	int rc = -EINPROGRESS;		/* Call commit handler */
 
@@ -5820,9 +5823,10 @@ static int airo_set_freq(struct net_device *dev,
  */
 static int airo_get_freq(struct net_device *dev,
 			 struct iw_request_info *info,
-			 struct iw_freq *fwrq,
+			 union iwreq_data *wrqu,
 			 char *extra)
 {
+	struct iw_freq *fwrq = &wrqu->freq;
 	struct airo_info *local = dev->ml_priv;
 	StatusRid status_rid;		/* Card status info */
 	int ch;
@@ -5852,9 +5856,10 @@ static int airo_get_freq(struct net_device *dev,
  */
 static int airo_set_essid(struct net_device *dev,
 			  struct iw_request_info *info,
-			  struct iw_point *dwrq,
+			  union iwreq_data *wrqu,
 			  char *extra)
 {
+	struct iw_point *dwrq = &wrqu->essid;
 	struct airo_info *local = dev->ml_priv;
 	SsidRid SSID_rid;		/* SSIDs */
 
@@ -5897,9 +5902,10 @@ static int airo_set_essid(struct net_device *dev,
  */
 static int airo_get_essid(struct net_device *dev,
 			  struct iw_request_info *info,
-			  struct iw_point *dwrq,
+			  union iwreq_data *wrqu,
 			  char *extra)
 {
+	struct iw_point *dwrq = &wrqu->essid;
 	struct airo_info *local = dev->ml_priv;
 	StatusRid status_rid;		/* Card status info */
 
@@ -5925,9 +5931,10 @@ static int airo_get_essid(struct net_device *dev,
  */
 static int airo_set_wap(struct net_device *dev,
 			struct iw_request_info *info,
-			struct sockaddr *awrq,
+			union iwreq_data *wrqu,
 			char *extra)
 {
+	struct sockaddr *awrq = &wrqu->ap_addr;
 	struct airo_info *local = dev->ml_priv;
 	Cmd cmd;
 	Resp rsp;
@@ -5960,9 +5967,10 @@ static int airo_set_wap(struct net_device *dev,
  */
 static int airo_get_wap(struct net_device *dev,
 			struct iw_request_info *info,
-			struct sockaddr *awrq,
+			union iwreq_data *wrqu,
 			char *extra)
 {
+	struct sockaddr *awrq = &wrqu->ap_addr;
 	struct airo_info *local = dev->ml_priv;
 	StatusRid status_rid;		/* Card status info */
 
@@ -5981,9 +5989,10 @@ static int airo_get_wap(struct net_device *dev,
  */
 static int airo_set_nick(struct net_device *dev,
 			 struct iw_request_info *info,
-			 struct iw_point *dwrq,
+			 union iwreq_data *wrqu,
 			 char *extra)
 {
+	struct iw_point *dwrq = &wrqu->data;
 	struct airo_info *local = dev->ml_priv;
 
 	/* Check the size of the string */
@@ -6004,9 +6013,10 @@ static int airo_set_nick(struct net_device *dev,
  */
 static int airo_get_nick(struct net_device *dev,
 			 struct iw_request_info *info,
-			 struct iw_point *dwrq,
+			 union iwreq_data *wrqu,
 			 char *extra)
 {
+	struct iw_point *dwrq = &wrqu->data;
 	struct airo_info *local = dev->ml_priv;
 
 	readConfigRid(local, 1);
@@ -6023,9 +6033,10 @@ static int airo_get_nick(struct net_device *dev,
  */
 static int airo_set_rate(struct net_device *dev,
 			 struct iw_request_info *info,
-			 struct iw_param *vwrq,
+			 union iwreq_data *wrqu,
 			 char *extra)
 {
+	struct iw_param *vwrq = &wrqu->bitrate;
 	struct airo_info *local = dev->ml_priv;
 	CapabilityRid cap_rid;		/* Card capability info */
 	u8	brate = 0;
@@ -6093,9 +6104,10 @@ static int airo_set_rate(struct net_device *dev,
  */
 static int airo_get_rate(struct net_device *dev,
 			 struct iw_request_info *info,
-			 struct iw_param *vwrq,
+			 union iwreq_data *wrqu,
 			 char *extra)
 {
+	struct iw_param *vwrq = &wrqu->bitrate;
 	struct airo_info *local = dev->ml_priv;
 	StatusRid status_rid;		/* Card status info */
 
@@ -6115,9 +6127,10 @@ static int airo_get_rate(struct net_device *dev,
  */
 static int airo_set_rts(struct net_device *dev,
 			struct iw_request_info *info,
-			struct iw_param *vwrq,
+			union iwreq_data *wrqu,
 			char *extra)
 {
+	struct iw_param *vwrq = &wrqu->rts;
 	struct airo_info *local = dev->ml_priv;
 	int rthr = vwrq->value;
 
@@ -6139,9 +6152,10 @@ static int airo_set_rts(struct net_device *dev,
  */
 static int airo_get_rts(struct net_device *dev,
 			struct iw_request_info *info,
-			struct iw_param *vwrq,
+			union iwreq_data *wrqu,
 			char *extra)
 {
+	struct iw_param *vwrq = &wrqu->rts;
 	struct airo_info *local = dev->ml_priv;
 
 	readConfigRid(local, 1);
@@ -6158,9 +6172,10 @@ static int airo_get_rts(struct net_device *dev,
  */
 static int airo_set_frag(struct net_device *dev,
 			 struct iw_request_info *info,
-			 struct iw_param *vwrq,
+			 union iwreq_data *wrqu,
 			 char *extra)
 {
+	struct iw_param *vwrq = &wrqu->frag;
 	struct airo_info *local = dev->ml_priv;
 	int fthr = vwrq->value;
 
@@ -6183,9 +6198,10 @@ static int airo_set_frag(struct net_device *dev,
  */
 static int airo_get_frag(struct net_device *dev,
 			 struct iw_request_info *info,
-			 struct iw_param *vwrq,
+			 union iwreq_data *wrqu,
 			 char *extra)
 {
+	struct iw_param *vwrq = &wrqu->frag;
 	struct airo_info *local = dev->ml_priv;
 
 	readConfigRid(local, 1);
@@ -6202,9 +6218,10 @@ static int airo_get_frag(struct net_device *dev,
  */
 static int airo_set_mode(struct net_device *dev,
 			 struct iw_request_info *info,
-			 __u32 *uwrq,
+			 union iwreq_data *wrqu,
 			 char *extra)
 {
+	__u32 *uwrq = &wrqu->mode;
 	struct airo_info *local = dev->ml_priv;
 	int reset = 0;
 
@@ -6265,9 +6282,10 @@ static int airo_set_mode(struct net_device *dev,
  */
 static int airo_get_mode(struct net_device *dev,
 			 struct iw_request_info *info,
-			 __u32 *uwrq,
+			 union iwreq_data *wrqu,
 			 char *extra)
 {
+	__u32 *uwrq = &wrqu->mode;
 	struct airo_info *local = dev->ml_priv;
 
 	readConfigRid(local, 1);
@@ -6300,9 +6318,10 @@ static inline int valid_index(struct airo_info *ai, int index)
  */
 static int airo_set_encode(struct net_device *dev,
 			   struct iw_request_info *info,
-			   struct iw_point *dwrq,
+			   union iwreq_data *wrqu,
 			   char *extra)
 {
+	struct iw_point *dwrq = &wrqu->encoding;
 	struct airo_info *local = dev->ml_priv;
 	int perm = (dwrq->flags & IW_ENCODE_TEMP ? 0 : 1);
 	__le16 currentAuthType = local->config.authType;
@@ -6399,9 +6418,10 @@ static int airo_set_encode(struct net_device *dev,
  */
 static int airo_get_encode(struct net_device *dev,
 			   struct iw_request_info *info,
-			   struct iw_point *dwrq,
+			   union iwreq_data *wrqu,
 			   char *extra)
 {
+	struct iw_point *dwrq = &wrqu->encoding;
 	struct airo_info *local = dev->ml_priv;
 	int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
 	int wep_key_len;
@@ -6746,9 +6766,10 @@ static int airo_get_auth(struct net_device *dev,
  */
 static int airo_set_txpow(struct net_device *dev,
 			  struct iw_request_info *info,
-			  struct iw_param *vwrq,
+			  union iwreq_data *wrqu,
 			  char *extra)
 {
+	struct iw_param *vwrq = &wrqu->txpower;
 	struct airo_info *local = dev->ml_priv;
 	CapabilityRid cap_rid;		/* Card capability info */
 	int i;
@@ -6783,9 +6804,10 @@ static int airo_set_txpow(struct net_device *dev,
  */
 static int airo_get_txpow(struct net_device *dev,
 			  struct iw_request_info *info,
-			  struct iw_param *vwrq,
+			  union iwreq_data *wrqu,
 			  char *extra)
 {
+	struct iw_param *vwrq = &wrqu->txpower;
 	struct airo_info *local = dev->ml_priv;
 
 	readConfigRid(local, 1);
@@ -6803,9 +6825,10 @@ static int airo_get_txpow(struct net_device *dev,
  */
 static int airo_set_retry(struct net_device *dev,
 			  struct iw_request_info *info,
-			  struct iw_param *vwrq,
+			  union iwreq_data *wrqu,
 			  char *extra)
 {
+	struct iw_param *vwrq = &wrqu->retry;
 	struct airo_info *local = dev->ml_priv;
 	int rc = -EINVAL;
 
@@ -6841,9 +6864,10 @@ static int airo_set_retry(struct net_device *dev,
  */
 static int airo_get_retry(struct net_device *dev,
 			  struct iw_request_info *info,
-			  struct iw_param *vwrq,
+			  union iwreq_data *wrqu,
 			  char *extra)
 {
+	struct iw_param *vwrq = &wrqu->retry;
 	struct airo_info *local = dev->ml_priv;
 
 	vwrq->disabled = 0;      /* Can't be disabled */
@@ -6872,9 +6896,10 @@ static int airo_get_retry(struct net_device *dev,
  */
 static int airo_get_range(struct net_device *dev,
 			  struct iw_request_info *info,
-			  struct iw_point *dwrq,
+			  union iwreq_data *wrqu,
 			  char *extra)
 {
+	struct iw_point *dwrq = &wrqu->data;
 	struct airo_info *local = dev->ml_priv;
 	struct iw_range *range = (struct iw_range *) extra;
 	CapabilityRid cap_rid;		/* Card capability info */
@@ -6998,9 +7023,10 @@ static int airo_get_range(struct net_device *dev,
  */
 static int airo_set_power(struct net_device *dev,
 			  struct iw_request_info *info,
-			  struct iw_param *vwrq,
+			  union iwreq_data *wrqu,
 			  char *extra)
 {
+	struct iw_param *vwrq = &wrqu->power;
 	struct airo_info *local = dev->ml_priv;
 
 	readConfigRid(local, 1);
@@ -7055,9 +7081,10 @@ static int airo_set_power(struct net_device *dev,
  */
 static int airo_get_power(struct net_device *dev,
 			  struct iw_request_info *info,
-			  struct iw_param *vwrq,
+			  union iwreq_data *wrqu,
 			  char *extra)
 {
+	struct iw_param *vwrq = &wrqu->power;
 	struct airo_info *local = dev->ml_priv;
 	__le16 mode;
 
@@ -7086,9 +7113,10 @@ static int airo_get_power(struct net_device *dev,
  */
 static int airo_set_sens(struct net_device *dev,
 			 struct iw_request_info *info,
-			 struct iw_param *vwrq,
+			 union iwreq_data *wrqu,
 			 char *extra)
 {
+	struct iw_param *vwrq = &wrqu->sens;
 	struct airo_info *local = dev->ml_priv;
 
 	readConfigRid(local, 1);
@@ -7105,9 +7133,10 @@ static int airo_set_sens(struct net_device *dev,
  */
 static int airo_get_sens(struct net_device *dev,
 			 struct iw_request_info *info,
-			 struct iw_param *vwrq,
+			 union iwreq_data *wrqu,
 			 char *extra)
 {
+	struct iw_param *vwrq = &wrqu->sens;
 	struct airo_info *local = dev->ml_priv;
 
 	readConfigRid(local, 1);
@@ -7125,9 +7154,10 @@ static int airo_get_sens(struct net_device *dev,
  */
 static int airo_get_aplist(struct net_device *dev,
 			   struct iw_request_info *info,
-			   struct iw_point *dwrq,
+			   union iwreq_data *wrqu,
 			   char *extra)
 {
+	struct iw_point *dwrq = &wrqu->data;
 	struct airo_info *local = dev->ml_priv;
 	struct sockaddr *address = (struct sockaddr *) extra;
 	struct iw_quality *qual;
@@ -7203,7 +7233,7 @@ static int airo_get_aplist(struct net_device *dev,
  */
 static int airo_set_scan(struct net_device *dev,
 			 struct iw_request_info *info,
-			 struct iw_point *dwrq,
+			 union iwreq_data *dwrq,
 			 char *extra)
 {
 	struct airo_info *ai = dev->ml_priv;
@@ -7434,9 +7464,10 @@ static inline char *airo_translate_scan(struct net_device *dev,
  */
 static int airo_get_scan(struct net_device *dev,
 			 struct iw_request_info *info,
-			 struct iw_point *dwrq,
+			 union iwreq_data *wrqu,
 			 char *extra)
 {
+	struct iw_point *dwrq = &wrqu->data;
 	struct airo_info *ai = dev->ml_priv;
 	BSSListElement *net;
 	int err = 0;
@@ -7478,7 +7509,7 @@ out:
  */
 static int airo_config_commit(struct net_device *dev,
 			      struct iw_request_info *info,	/* NULL */
-			      void *zwrq,			/* NULL */
+			      union iwreq_data *zwrq,		/* NULL */
 			      char *extra)			/* NULL */
 {
 	struct airo_info *local = dev->ml_priv;
@@ -7528,61 +7559,61 @@ static const struct iw_priv_args airo_private_args[] = {
 
 static const iw_handler		airo_handler[] =
 {
-	(iw_handler) airo_config_commit,	/* SIOCSIWCOMMIT */
-	(iw_handler) airo_get_name,		/* SIOCGIWNAME */
-	(iw_handler) NULL,			/* SIOCSIWNWID */
-	(iw_handler) NULL,			/* SIOCGIWNWID */
-	(iw_handler) airo_set_freq,		/* SIOCSIWFREQ */
-	(iw_handler) airo_get_freq,		/* SIOCGIWFREQ */
-	(iw_handler) airo_set_mode,		/* SIOCSIWMODE */
-	(iw_handler) airo_get_mode,		/* SIOCGIWMODE */
-	(iw_handler) airo_set_sens,		/* SIOCSIWSENS */
-	(iw_handler) airo_get_sens,		/* SIOCGIWSENS */
-	(iw_handler) NULL,			/* SIOCSIWRANGE */
-	(iw_handler) airo_get_range,		/* SIOCGIWRANGE */
-	(iw_handler) NULL,			/* SIOCSIWPRIV */
-	(iw_handler) NULL,			/* SIOCGIWPRIV */
-	(iw_handler) NULL,			/* SIOCSIWSTATS */
-	(iw_handler) NULL,			/* SIOCGIWSTATS */
+	airo_config_commit,	/* SIOCSIWCOMMIT */
+	airo_get_name,		/* SIOCGIWNAME */
+	NULL,			/* SIOCSIWNWID */
+	NULL,			/* SIOCGIWNWID */
+	airo_set_freq,		/* SIOCSIWFREQ */
+	airo_get_freq,		/* SIOCGIWFREQ */
+	airo_set_mode,		/* SIOCSIWMODE */
+	airo_get_mode,		/* SIOCGIWMODE */
+	airo_set_sens,		/* SIOCSIWSENS */
+	airo_get_sens,		/* SIOCGIWSENS */
+	NULL,			/* SIOCSIWRANGE */
+	airo_get_range,		/* SIOCGIWRANGE */
+	NULL,			/* SIOCSIWPRIV */
+	NULL,			/* SIOCGIWPRIV */
+	NULL,			/* SIOCSIWSTATS */
+	NULL,			/* SIOCGIWSTATS */
 	iw_handler_set_spy,			/* SIOCSIWSPY */
 	iw_handler_get_spy,			/* SIOCGIWSPY */
 	iw_handler_set_thrspy,			/* SIOCSIWTHRSPY */
 	iw_handler_get_thrspy,			/* SIOCGIWTHRSPY */
-	(iw_handler) airo_set_wap,		/* SIOCSIWAP */
-	(iw_handler) airo_get_wap,		/* SIOCGIWAP */
-	(iw_handler) NULL,			/* -- hole -- */
-	(iw_handler) airo_get_aplist,		/* SIOCGIWAPLIST */
-	(iw_handler) airo_set_scan,		/* SIOCSIWSCAN */
-	(iw_handler) airo_get_scan,		/* SIOCGIWSCAN */
-	(iw_handler) airo_set_essid,		/* SIOCSIWESSID */
-	(iw_handler) airo_get_essid,		/* SIOCGIWESSID */
-	(iw_handler) airo_set_nick,		/* SIOCSIWNICKN */
-	(iw_handler) airo_get_nick,		/* SIOCGIWNICKN */
-	(iw_handler) NULL,			/* -- hole -- */
-	(iw_handler) NULL,			/* -- hole -- */
-	(iw_handler) airo_set_rate,		/* SIOCSIWRATE */
-	(iw_handler) airo_get_rate,		/* SIOCGIWRATE */
-	(iw_handler) airo_set_rts,		/* SIOCSIWRTS */
-	(iw_handler) airo_get_rts,		/* SIOCGIWRTS */
-	(iw_handler) airo_set_frag,		/* SIOCSIWFRAG */
-	(iw_handler) airo_get_frag,		/* SIOCGIWFRAG */
-	(iw_handler) airo_set_txpow,		/* SIOCSIWTXPOW */
-	(iw_handler) airo_get_txpow,		/* SIOCGIWTXPOW */
-	(iw_handler) airo_set_retry,		/* SIOCSIWRETRY */
-	(iw_handler) airo_get_retry,		/* SIOCGIWRETRY */
-	(iw_handler) airo_set_encode,		/* SIOCSIWENCODE */
-	(iw_handler) airo_get_encode,		/* SIOCGIWENCODE */
-	(iw_handler) airo_set_power,		/* SIOCSIWPOWER */
-	(iw_handler) airo_get_power,		/* SIOCGIWPOWER */
-	(iw_handler) NULL,			/* -- hole -- */
-	(iw_handler) NULL,			/* -- hole -- */
-	(iw_handler) NULL,			/* SIOCSIWGENIE */
-	(iw_handler) NULL,			/* SIOCGIWGENIE */
-	(iw_handler) airo_set_auth,		/* SIOCSIWAUTH */
-	(iw_handler) airo_get_auth,		/* SIOCGIWAUTH */
-	(iw_handler) airo_set_encodeext,	/* SIOCSIWENCODEEXT */
-	(iw_handler) airo_get_encodeext,	/* SIOCGIWENCODEEXT */
-	(iw_handler) NULL,			/* SIOCSIWPMKSA */
+	airo_set_wap,		/* SIOCSIWAP */
+	airo_get_wap,		/* SIOCGIWAP */
+	NULL,			/* -- hole -- */
+	airo_get_aplist,		/* SIOCGIWAPLIST */
+	airo_set_scan,		/* SIOCSIWSCAN */
+	airo_get_scan,		/* SIOCGIWSCAN */
+	airo_set_essid,		/* SIOCSIWESSID */
+	airo_get_essid,		/* SIOCGIWESSID */
+	airo_set_nick,		/* SIOCSIWNICKN */
+	airo_get_nick,		/* SIOCGIWNICKN */
+	NULL,			/* -- hole -- */
+	NULL,			/* -- hole -- */
+	airo_set_rate,		/* SIOCSIWRATE */
+	airo_get_rate,		/* SIOCGIWRATE */
+	airo_set_rts,		/* SIOCSIWRTS */
+	airo_get_rts,		/* SIOCGIWRTS */
+	airo_set_frag,		/* SIOCSIWFRAG */
+	airo_get_frag,		/* SIOCGIWFRAG */
+	airo_set_txpow,		/* SIOCSIWTXPOW */
+	airo_get_txpow,		/* SIOCGIWTXPOW */
+	airo_set_retry,		/* SIOCSIWRETRY */
+	airo_get_retry,		/* SIOCGIWRETRY */
+	airo_set_encode,		/* SIOCSIWENCODE */
+	airo_get_encode,		/* SIOCGIWENCODE */
+	airo_set_power,		/* SIOCSIWPOWER */
+	airo_get_power,		/* SIOCGIWPOWER */
+	NULL,			/* -- hole -- */
+	NULL,			/* -- hole -- */
+	NULL,			/* SIOCSIWGENIE */
+	NULL,			/* SIOCGIWGENIE */
+	airo_set_auth,		/* SIOCSIWAUTH */
+	airo_get_auth,		/* SIOCGIWAUTH */
+	airo_set_encodeext,	/* SIOCSIWENCODEEXT */
+	airo_get_encodeext,	/* SIOCGIWENCODEEXT */
+	NULL,			/* SIOCSIWPMKSA */
 };
 
 /* Note : don't describe AIROIDIFC and AIROOLDIDIFC in here.
@@ -7845,7 +7876,7 @@ static int writerids(struct net_device *dev, aironet_ioctl *comp) {
 	struct airo_info *ai = dev->ml_priv;
 	int  ridcode;
         int  enabled;
-	static int (* writer)(struct airo_info *, u16 rid, const void *, int, int);
+	int (* writer)(struct airo_info *, u16 rid, const void *, int, int);
 	unsigned char *iobuf;
 
 	/* Only super-user can write RIDs */
diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2100.c b/drivers/net/wireless/intel/ipw2x00/ipw2100.c
index f93a7f7..eb25e2b 100644
--- a/drivers/net/wireless/intel/ipw2x00/ipw2100.c
+++ b/drivers/net/wireless/intel/ipw2x00/ipw2100.c
@@ -3220,8 +3220,9 @@ static void ipw2100_tx_send_data(struct ipw2100_priv *priv)
 	}
 }
 
-static void ipw2100_irq_tasklet(struct ipw2100_priv *priv)
+static void ipw2100_irq_tasklet(unsigned long _priv)
 {
+	struct ipw2100_priv *priv = (struct ipw2100_priv *)_priv;
 	struct net_device *dev = priv->net_dev;
 	unsigned long flags;
 	u32 inta, tmp;
@@ -6029,7 +6030,7 @@ static void ipw2100_rf_kill(struct work_struct *work)
 	spin_unlock_irqrestore(&priv->low_lock, flags);
 }
 
-static void ipw2100_irq_tasklet(struct ipw2100_priv *priv);
+static void ipw2100_irq_tasklet(unsigned long _priv);
 
 static const struct net_device_ops ipw2100_netdev_ops = {
 	.ndo_open		= ipw2100_open,
@@ -6158,8 +6159,7 @@ static struct net_device *ipw2100_alloc_device(struct pci_dev *pci_dev,
 	INIT_DELAYED_WORK(&priv->rf_kill, ipw2100_rf_kill);
 	INIT_DELAYED_WORK(&priv->scan_event, ipw2100_scan_event);
 
-	tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
-		     ipw2100_irq_tasklet, (unsigned long)priv);
+	tasklet_init(&priv->irq_tasklet, ipw2100_irq_tasklet, (unsigned long)priv);
 
 	/* NOTE:  We do not start the deferred work for status checks yet */
 	priv->stop_rf_kill = 1;
diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2200.c b/drivers/net/wireless/intel/ipw2x00/ipw2200.c
index ed0adaf..4bb4f53 100644
--- a/drivers/net/wireless/intel/ipw2x00/ipw2200.c
+++ b/drivers/net/wireless/intel/ipw2x00/ipw2200.c
@@ -1968,8 +1968,9 @@ static void notify_wx_assoc_event(struct ipw_priv *priv)
 	wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
 }
 
-static void ipw_irq_tasklet(struct ipw_priv *priv)
+static void ipw_irq_tasklet(unsigned long _priv)
 {
+	struct ipw_priv *priv = (struct ipw_priv *)_priv;
 	u32 inta, inta_mask, handled = 0;
 	unsigned long flags;
 	int rc = 0;
@@ -10705,8 +10706,7 @@ static int ipw_setup_deferred_work(struct ipw_priv *priv)
 	INIT_WORK(&priv->qos_activate, ipw_bg_qos_activate);
 #endif				/* CONFIG_IPW2200_QOS */
 
-	tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
-		     ipw_irq_tasklet, (unsigned long)priv);
+	tasklet_init(&priv->irq_tasklet, ipw_irq_tasklet, (unsigned long)priv);
 
 	return ret;
 }
diff --git a/drivers/net/wireless/intel/iwlegacy/3945-mac.c b/drivers/net/wireless/intel/iwlegacy/3945-mac.c
index af1b3e6..c014779 100644
--- a/drivers/net/wireless/intel/iwlegacy/3945-mac.c
+++ b/drivers/net/wireless/intel/iwlegacy/3945-mac.c
@@ -1399,8 +1399,9 @@ il3945_dump_nic_error_log(struct il_priv *il)
 }
 
 static void
-il3945_irq_tasklet(struct il_priv *il)
+il3945_irq_tasklet(unsigned long _il)
 {
+	struct il_priv *il = (struct il_priv *)_il;
 	u32 inta, handled = 0;
 	u32 inta_fh;
 	unsigned long flags;
@@ -3432,7 +3433,7 @@ il3945_setup_deferred_work(struct il_priv *il)
 	setup_timer(&il->watchdog, il_bg_watchdog, (unsigned long)il);
 
 	tasklet_init(&il->irq_tasklet,
-		     (void (*)(unsigned long))il3945_irq_tasklet,
+		     il3945_irq_tasklet,
 		     (unsigned long)il);
 }
 
@@ -3469,7 +3470,7 @@ static struct attribute_group il3945_attribute_group = {
 	.attrs = il3945_sysfs_entries,
 };
 
-static struct ieee80211_ops il3945_mac_ops __read_mostly = {
+static struct ieee80211_ops il3945_mac_ops = {
 	.tx = il3945_mac_tx,
 	.start = il3945_mac_start,
 	.stop = il3945_mac_stop,
@@ -3633,7 +3634,9 @@ il3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	 */
 	if (il3945_mod_params.disable_hw_scan) {
 		D_INFO("Disabling hw_scan\n");
-		il3945_mac_ops.hw_scan = NULL;
+		pax_open_kernel();
+		const_cast(il3945_mac_ops.hw_scan) = NULL;
+		pax_close_kernel();
 	}
 
 	D_INFO("*** LOAD DRIVER ***\n");
diff --git a/drivers/net/wireless/intel/iwlegacy/4965-mac.c b/drivers/net/wireless/intel/iwlegacy/4965-mac.c
index b75f4ef..8fe465b 100644
--- a/drivers/net/wireless/intel/iwlegacy/4965-mac.c
+++ b/drivers/net/wireless/intel/iwlegacy/4965-mac.c
@@ -4361,8 +4361,9 @@ il4965_synchronize_irq(struct il_priv *il)
 }
 
 static void
-il4965_irq_tasklet(struct il_priv *il)
+il4965_irq_tasklet(unsigned long _il)
 {
+	struct il_priv *il = (struct il_priv *)_il;
 	u32 inta, handled = 0;
 	u32 inta_fh;
 	unsigned long flags;
@@ -6256,9 +6257,7 @@ il4965_setup_deferred_work(struct il_priv *il)
 
 	setup_timer(&il->watchdog, il_bg_watchdog, (unsigned long)il);
 
-	tasklet_init(&il->irq_tasklet,
-		     (void (*)(unsigned long))il4965_irq_tasklet,
-		     (unsigned long)il);
+	tasklet_init(&il->irq_tasklet, il4965_irq_tasklet, (unsigned long)il);
 }
 
 static void
diff --git a/drivers/net/wireless/intel/iwlwifi/dvm/debugfs.c b/drivers/net/wireless/intel/iwlwifi/dvm/debugfs.c
index 74c5161..f0a52a5 100644
--- a/drivers/net/wireless/intel/iwlwifi/dvm/debugfs.c
+++ b/drivers/net/wireless/intel/iwlwifi/dvm/debugfs.c
@@ -190,7 +190,7 @@ static ssize_t iwl_dbgfs_sram_write(struct file *file,
 {
 	struct iwl_priv *priv = file->private_data;
 	char buf[64];
-	int buf_size;
+	size_t buf_size;
 	u32 offset, len;
 
 	memset(buf, 0, sizeof(buf));
@@ -456,7 +456,7 @@ static ssize_t iwl_dbgfs_rx_handlers_write(struct file *file,
 	struct iwl_priv *priv = file->private_data;
 
 	char buf[8];
-	int buf_size;
+	size_t buf_size;
 	u32 reset_flag;
 
 	memset(buf, 0, sizeof(buf));
@@ -537,7 +537,7 @@ static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
 {
 	struct iwl_priv *priv = file->private_data;
 	char buf[8];
-	int buf_size;
+	size_t buf_size;
 	int ht40;
 
 	memset(buf, 0, sizeof(buf));
@@ -589,7 +589,7 @@ static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
 {
 	struct iwl_priv *priv = file->private_data;
 	char buf[8];
-	int buf_size;
+	size_t buf_size;
 	int value;
 
 	memset(buf, 0, sizeof(buf));
@@ -681,10 +681,10 @@ DEBUGFS_READ_FILE_OPS(temperature);
 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
 DEBUGFS_READ_FILE_OPS(current_sleep_command);
 
-static const char *fmt_value = "  %-30s %10u\n";
-static const char *fmt_hex   = "  %-30s       0x%02X\n";
-static const char *fmt_table = "  %-30s %10u  %10u  %10u  %10u\n";
-static const char *fmt_header =
+static const char fmt_value[] = "  %-30s %10u\n";
+static const char fmt_hex[]   = "  %-30s       0x%02X\n";
+static const char fmt_table[] = "  %-30s %10u  %10u  %10u  %10u\n";
+static const char fmt_header[] =
 	"%-32s    current  cumulative       delta         max\n";
 
 static int iwl_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
@@ -1854,7 +1854,7 @@ static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
 {
 	struct iwl_priv *priv = file->private_data;
 	char buf[8];
-	int buf_size;
+	size_t buf_size;
 	int clear;
 
 	memset(buf, 0, sizeof(buf));
@@ -1899,7 +1899,7 @@ static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
 {
 	struct iwl_priv *priv = file->private_data;
 	char buf[8];
-	int buf_size;
+	size_t buf_size;
 	int trace;
 
 	memset(buf, 0, sizeof(buf));
@@ -1970,7 +1970,7 @@ static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
 {
 	struct iwl_priv *priv = file->private_data;
 	char buf[8];
-	int buf_size;
+	size_t buf_size;
 	int missed;
 
 	memset(buf, 0, sizeof(buf));
@@ -2011,7 +2011,7 @@ static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
 
 	struct iwl_priv *priv = file->private_data;
 	char buf[8];
-	int buf_size;
+	size_t buf_size;
 	int plcp;
 
 	memset(buf, 0, sizeof(buf));
@@ -2071,7 +2071,7 @@ static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file,
 
 	struct iwl_priv *priv = file->private_data;
 	char buf[8];
-	int buf_size;
+	size_t buf_size;
 	int flush;
 
 	memset(buf, 0, sizeof(buf));
@@ -2161,7 +2161,7 @@ static ssize_t iwl_dbgfs_protection_mode_write(struct file *file,
 
 	struct iwl_priv *priv = file->private_data;
 	char buf[8];
-	int buf_size;
+	size_t buf_size;
 	int rts;
 
 	if (!priv->cfg->ht_params)
@@ -2202,7 +2202,7 @@ static ssize_t iwl_dbgfs_echo_test_write(struct file *file,
 {
 	struct iwl_priv *priv = file->private_data;
 	char buf[8];
-	int buf_size;
+	size_t buf_size;
 
 	memset(buf, 0, sizeof(buf));
 	buf_size = min(count, sizeof(buf) -  1);
@@ -2236,7 +2236,7 @@ static ssize_t iwl_dbgfs_log_event_write(struct file *file,
 	struct iwl_priv *priv = file->private_data;
 	u32 event_log_flag;
 	char buf[8];
-	int buf_size;
+	size_t buf_size;
 
 	/* check that the interface is up */
 	if (!iwl_is_ready(priv))
@@ -2290,7 +2290,7 @@ static ssize_t iwl_dbgfs_calib_disabled_write(struct file *file,
 	struct iwl_priv *priv = file->private_data;
 	char buf[8];
 	u32 calib_disabled;
-	int buf_size;
+	size_t buf_size;
 
 	memset(buf, 0, sizeof(buf));
 	buf_size = min(count, sizeof(buf) - 1);
diff --git a/drivers/net/wireless/intel/iwlwifi/dvm/lib.c b/drivers/net/wireless/intel/iwlwifi/dvm/lib.c
index 1799469..f0c488d 100644
--- a/drivers/net/wireless/intel/iwlwifi/dvm/lib.c
+++ b/drivers/net/wireless/intel/iwlwifi/dvm/lib.c
@@ -950,7 +950,7 @@ static void iwlagn_wowlan_program_keys(struct ieee80211_hw *hw,
 
 			rx_p1ks = data->tkip->rx_uni;
 
-			pn64 = atomic64_read(&key->tx_pn);
+			pn64 = atomic64_read_unchecked(&key->tx_pn);
 			tkip_tx_sc->iv16 = cpu_to_le16(TKIP_PN_TO_IV16(pn64));
 			tkip_tx_sc->iv32 = cpu_to_le32(TKIP_PN_TO_IV32(pn64));
 
@@ -1003,7 +1003,7 @@ static void iwlagn_wowlan_program_keys(struct ieee80211_hw *hw,
 			aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc;
 			aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc;
 
-			pn64 = atomic64_read(&key->tx_pn);
+			pn64 = atomic64_read_unchecked(&key->tx_pn);
 			aes_tx_sc->pn = cpu_to_le64(pn64);
 		} else
 			aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc;
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
index c1a3131..2592a24 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
@@ -258,7 +258,7 @@ static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw *hw,
 
 			rx_p1ks = data->tkip->rx_uni;
 
-			pn64 = atomic64_read(&key->tx_pn);
+			pn64 = atomic64_read_unchecked(&key->tx_pn);
 			tkip_tx_sc->iv16 = cpu_to_le16(TKIP_PN_TO_IV16(pn64));
 			tkip_tx_sc->iv32 = cpu_to_le32(TKIP_PN_TO_IV32(pn64));
 
@@ -313,7 +313,7 @@ static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw *hw,
 			aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc;
 			aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc;
 
-			pn64 = atomic64_read(&key->tx_pn);
+			pn64 = atomic64_read_unchecked(&key->tx_pn);
 			aes_tx_sc->pn = cpu_to_le64(pn64);
 		} else {
 			aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc;
@@ -1610,12 +1610,12 @@ static void iwl_mvm_d3_update_keys(struct ieee80211_hw *hw,
 		case WLAN_CIPHER_SUITE_CCMP:
 			iwl_mvm_set_aes_rx_seq(data->mvm, sc->aes.unicast_rsc,
 					       sta, key);
-			atomic64_set(&key->tx_pn, le64_to_cpu(sc->aes.tsc.pn));
+			atomic64_set_unchecked(&key->tx_pn, le64_to_cpu(sc->aes.tsc.pn));
 			break;
 		case WLAN_CIPHER_SUITE_TKIP:
 			iwl_mvm_tkip_sc_to_seq(&sc->tkip.tsc, &seq);
 			iwl_mvm_set_tkip_rx_seq(sc->tkip.unicast_rsc, key);
-			atomic64_set(&key->tx_pn,
+			atomic64_set_unchecked(&key->tx_pn,
 				     (u64)seq.tkip.iv16 |
 				     ((u64)seq.tkip.iv32 << 16));
 			break;
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
index 34731e2..9bd389b 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
@@ -290,7 +290,7 @@ static void iwl_mvm_set_tx_cmd_crypto(struct iwl_mvm *mvm,
 	case WLAN_CIPHER_SUITE_CCMP:
 	case WLAN_CIPHER_SUITE_CCMP_256:
 		iwl_mvm_set_tx_cmd_ccmp(info, tx_cmd);
-		pn = atomic64_inc_return(&keyconf->tx_pn);
+		pn = atomic64_inc_return_unchecked(&keyconf->tx_pn);
 		crypto_hdr[0] = pn;
 		crypto_hdr[2] = 0;
 		crypto_hdr[3] = 0x20 | (keyconf->keyidx << 6);
@@ -303,7 +303,7 @@ static void iwl_mvm_set_tx_cmd_crypto(struct iwl_mvm *mvm,
 
 	case WLAN_CIPHER_SUITE_TKIP:
 		tx_cmd->sec_ctl = TX_CMD_SEC_TKIP;
-		pn = atomic64_inc_return(&keyconf->tx_pn);
+		pn = atomic64_inc_return_unchecked(&keyconf->tx_pn);
 		ieee80211_tkip_add_iv(crypto_hdr, keyconf, pn);
 		ieee80211_get_tkip_p2k(keyconf, skb_frag, tx_cmd->key);
 		break;
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
index b2b7935..cc6abc7 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
@@ -2308,7 +2308,7 @@ static ssize_t iwl_dbgfs_interrupt_write(struct file *file,
 	struct isr_statistics *isr_stats = &trans_pcie->isr_stats;
 
 	char buf[8];
-	int buf_size;
+	size_t buf_size;
 	u32 reset_flag;
 
 	memset(buf, 0, sizeof(buf));
@@ -2329,7 +2329,7 @@ static ssize_t iwl_dbgfs_csr_write(struct file *file,
 {
 	struct iwl_trans *trans = file->private_data;
 	char buf[8];
-	int buf_size;
+	size_t buf_size;
 	int csr;
 
 	memset(buf, 0, sizeof(buf));
diff --git a/drivers/net/wireless/intersil/hostap/hostap_ioctl.c b/drivers/net/wireless/intersil/hostap/hostap_ioctl.c
index 3e5fa78..ca2e051 100644
--- a/drivers/net/wireless/intersil/hostap/hostap_ioctl.c
+++ b/drivers/net/wireless/intersil/hostap/hostap_ioctl.c
@@ -101,8 +101,9 @@ static int prism2_get_datarates(struct net_device *dev, u8 *rates)
 
 static int prism2_get_name(struct net_device *dev,
 			   struct iw_request_info *info,
-			   char *name, char *extra)
+			   union iwreq_data *wrqu, char *extra)
 {
+	char *name = wrqu->name;
 	u8 rates[10];
 	int len, i, over2 = 0;
 
@@ -123,8 +124,9 @@ static int prism2_get_name(struct net_device *dev,
 
 static int prism2_ioctl_siwencode(struct net_device *dev,
 				  struct iw_request_info *info,
-				  struct iw_point *erq, char *keybuf)
+				  union iwreq_data *wrqu, char *keybuf)
 {
+	struct iw_point *erq = &wrqu->encoding;
 	struct hostap_interface *iface;
 	local_info_t *local;
 	int i;
@@ -225,8 +227,9 @@ static int prism2_ioctl_siwencode(struct net_device *dev,
 
 static int prism2_ioctl_giwencode(struct net_device *dev,
 				  struct iw_request_info *info,
-				  struct iw_point *erq, char *key)
+				  union iwreq_data *wrqu, char *key)
 {
+	struct iw_point *erq = &wrqu->encoding;
 	struct hostap_interface *iface;
 	local_info_t *local;
 	int i, len;
@@ -331,8 +334,9 @@ static int hostap_set_rate(struct net_device *dev)
 
 static int prism2_ioctl_siwrate(struct net_device *dev,
 				struct iw_request_info *info,
-				struct iw_param *rrq, char *extra)
+				union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *rrq = &wrqu->bitrate;
 	struct hostap_interface *iface;
 	local_info_t *local;
 
@@ -391,8 +395,9 @@ static int prism2_ioctl_siwrate(struct net_device *dev,
 
 static int prism2_ioctl_giwrate(struct net_device *dev,
 				struct iw_request_info *info,
-				struct iw_param *rrq, char *extra)
+				union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *rrq = &wrqu->bitrate;
 	u16 val;
 	struct hostap_interface *iface;
 	local_info_t *local;
@@ -450,8 +455,9 @@ static int prism2_ioctl_giwrate(struct net_device *dev,
 
 static int prism2_ioctl_siwsens(struct net_device *dev,
 				struct iw_request_info *info,
-				struct iw_param *sens, char *extra)
+				union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *sens = &wrqu->sens;
 	struct hostap_interface *iface;
 	local_info_t *local;
 
@@ -471,8 +477,9 @@ static int prism2_ioctl_siwsens(struct net_device *dev,
 
 static int prism2_ioctl_giwsens(struct net_device *dev,
 				struct iw_request_info *info,
-				struct iw_param *sens, char *extra)
+				union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *sens = &wrqu->sens;
 	struct hostap_interface *iface;
 	local_info_t *local;
 	__le16 val;
@@ -495,8 +502,9 @@ static int prism2_ioctl_giwsens(struct net_device *dev,
 /* Deprecated in new wireless extension API */
 static int prism2_ioctl_giwaplist(struct net_device *dev,
 				  struct iw_request_info *info,
-				  struct iw_point *data, char *extra)
+				  union iwreq_data *wrqu, char *extra)
 {
+	struct iw_point *data = &wrqu->data;
 	struct hostap_interface *iface;
 	local_info_t *local;
 	struct sockaddr *addr;
@@ -536,8 +544,9 @@ static int prism2_ioctl_giwaplist(struct net_device *dev,
 
 static int prism2_ioctl_siwrts(struct net_device *dev,
 			       struct iw_request_info *info,
-			       struct iw_param *rts, char *extra)
+			       union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *rts = &wrqu->rts;
 	struct hostap_interface *iface;
 	local_info_t *local;
 	__le16 val;
@@ -563,8 +572,9 @@ static int prism2_ioctl_siwrts(struct net_device *dev,
 
 static int prism2_ioctl_giwrts(struct net_device *dev,
 			       struct iw_request_info *info,
-			       struct iw_param *rts, char *extra)
+			       union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *rts = &wrqu->rts;
 	struct hostap_interface *iface;
 	local_info_t *local;
 	__le16 val;
@@ -586,8 +596,9 @@ static int prism2_ioctl_giwrts(struct net_device *dev,
 
 static int prism2_ioctl_siwfrag(struct net_device *dev,
 				struct iw_request_info *info,
-				struct iw_param *rts, char *extra)
+				union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *rts = &wrqu->rts;
 	struct hostap_interface *iface;
 	local_info_t *local;
 	__le16 val;
@@ -613,8 +624,9 @@ static int prism2_ioctl_siwfrag(struct net_device *dev,
 
 static int prism2_ioctl_giwfrag(struct net_device *dev,
 				struct iw_request_info *info,
-				struct iw_param *rts, char *extra)
+				union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *rts = &wrqu->rts;
 	struct hostap_interface *iface;
 	local_info_t *local;
 	__le16 val;
@@ -679,11 +691,12 @@ static int hostap_join_ap(struct net_device *dev)
 
 static int prism2_ioctl_siwap(struct net_device *dev,
 			      struct iw_request_info *info,
-			      struct sockaddr *ap_addr, char *extra)
+			      union iwreq_data *wrqu, char *extra)
 {
 #ifdef PRISM2_NO_STATION_MODES
 	return -EOPNOTSUPP;
 #else /* PRISM2_NO_STATION_MODES */
+	struct sockaddr *ap_addr = &wrqu->ap_addr;
 	struct hostap_interface *iface;
 	local_info_t *local;
 
@@ -719,8 +732,9 @@ static int prism2_ioctl_siwap(struct net_device *dev,
 
 static int prism2_ioctl_giwap(struct net_device *dev,
 			      struct iw_request_info *info,
-			      struct sockaddr *ap_addr, char *extra)
+			      union iwreq_data *wrqu, char *extra)
 {
+	struct sockaddr *ap_addr = &wrqu->ap_addr;
 	struct hostap_interface *iface;
 	local_info_t *local;
 
@@ -755,8 +769,9 @@ static int prism2_ioctl_giwap(struct net_device *dev,
 
 static int prism2_ioctl_siwnickn(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_point *data, char *nickname)
+				 union iwreq_data *wrqu, char *nickname)
 {
+	struct iw_point *data = &wrqu->data;
 	struct hostap_interface *iface;
 	local_info_t *local;
 
@@ -776,8 +791,9 @@ static int prism2_ioctl_siwnickn(struct net_device *dev,
 
 static int prism2_ioctl_giwnickn(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_point *data, char *nickname)
+				 union iwreq_data *wrqu, char *nickname)
 {
+	struct iw_point *data = &wrqu->data;
 	struct hostap_interface *iface;
 	local_info_t *local;
 	int len;
@@ -803,8 +819,9 @@ static int prism2_ioctl_giwnickn(struct net_device *dev,
 
 static int prism2_ioctl_siwfreq(struct net_device *dev,
 				struct iw_request_info *info,
-				struct iw_freq *freq, char *extra)
+				union iwreq_data *wrqu, char *extra)
 {
+	struct iw_freq *freq = &wrqu->freq;
 	struct hostap_interface *iface;
 	local_info_t *local;
 
@@ -840,8 +857,9 @@ static int prism2_ioctl_siwfreq(struct net_device *dev,
 
 static int prism2_ioctl_giwfreq(struct net_device *dev,
 				struct iw_request_info *info,
-				struct iw_freq *freq, char *extra)
+				union iwreq_data *wrqu, char *extra)
 {
+	struct iw_freq *freq = &wrqu->freq;
 	struct hostap_interface *iface;
 	local_info_t *local;
 	u16 val;
@@ -884,8 +902,9 @@ static void hostap_monitor_set_type(local_info_t *local)
 
 static int prism2_ioctl_siwessid(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_point *data, char *ssid)
+				 union iwreq_data *wrqu, char *ssid)
 {
+	struct iw_point *data = &wrqu->data;
 	struct hostap_interface *iface;
 	local_info_t *local;
 
@@ -920,8 +939,9 @@ static int prism2_ioctl_siwessid(struct net_device *dev,
 
 static int prism2_ioctl_giwessid(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_point *data, char *essid)
+				 union iwreq_data *wrqu, char *essid)
 {
+	struct iw_point *data = &wrqu->data;
 	struct hostap_interface *iface;
 	local_info_t *local;
 	u16 val;
@@ -956,8 +976,9 @@ static int prism2_ioctl_giwessid(struct net_device *dev,
 
 static int prism2_ioctl_giwrange(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_point *data, char *extra)
+				 union iwreq_data *wrqu, char *extra)
 {
+	struct iw_point *data = &wrqu->data;
 	struct hostap_interface *iface;
 	local_info_t *local;
 	struct iw_range *range = (struct iw_range *) extra;
@@ -1131,8 +1152,9 @@ static int hostap_monitor_mode_disable(local_info_t *local)
 
 static int prism2_ioctl_siwmode(struct net_device *dev,
 				struct iw_request_info *info,
-				__u32 *mode, char *extra)
+				union iwreq_data *wrqu, char *extra)
 {
+	__u32 *mode = &wrqu->mode;
 	struct hostap_interface *iface;
 	local_info_t *local;
 	int double_reset = 0;
@@ -1207,8 +1229,9 @@ static int prism2_ioctl_siwmode(struct net_device *dev,
 
 static int prism2_ioctl_giwmode(struct net_device *dev,
 				struct iw_request_info *info,
-				__u32 *mode, char *extra)
+				union iwreq_data *wrqu, char *extra)
 {
+	__u32 *mode = &wrqu->mode;
 	struct hostap_interface *iface;
 	local_info_t *local;
 
@@ -1232,11 +1255,12 @@ static int prism2_ioctl_giwmode(struct net_device *dev,
 
 static int prism2_ioctl_siwpower(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_param *wrq, char *extra)
+				 union iwreq_data *wrqu, char *extra)
 {
 #ifdef PRISM2_NO_STATION_MODES
 	return -EOPNOTSUPP;
 #else /* PRISM2_NO_STATION_MODES */
+	struct iw_param *wrq = &wrqu->power;
 	int ret = 0;
 
 	if (wrq->disabled)
@@ -1291,11 +1315,12 @@ static int prism2_ioctl_siwpower(struct net_device *dev,
 
 static int prism2_ioctl_giwpower(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_param *rrq, char *extra)
+				 union iwreq_data *wrqu, char *extra)
 {
 #ifdef PRISM2_NO_STATION_MODES
 	return -EOPNOTSUPP;
 #else /* PRISM2_NO_STATION_MODES */
+	struct iw_param *rrq = &wrqu->power;
 	struct hostap_interface *iface;
 	local_info_t *local;
 	__le16 enable, mcast;
@@ -1349,8 +1374,9 @@ static int prism2_ioctl_giwpower(struct net_device *dev,
 
 static int prism2_ioctl_siwretry(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_param *rrq, char *extra)
+				 union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *rrq = &wrqu->bitrate;
 	struct hostap_interface *iface;
 	local_info_t *local;
 
@@ -1410,8 +1436,9 @@ static int prism2_ioctl_siwretry(struct net_device *dev,
 
 static int prism2_ioctl_giwretry(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_param *rrq, char *extra)
+				 union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *rrq = &wrqu->bitrate;
 	struct hostap_interface *iface;
 	local_info_t *local;
 	__le16 shortretry, longretry, lifetime, altretry;
@@ -1504,8 +1531,9 @@ static u16 prism2_txpower_dBm_to_hfa386x(int val)
 
 static int prism2_ioctl_siwtxpow(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_param *rrq, char *extra)
+				 union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *rrq = &wrqu->bitrate;
 	struct hostap_interface *iface;
 	local_info_t *local;
 #ifdef RAW_TXPOWER_SETTING
@@ -1585,9 +1613,10 @@ static int prism2_ioctl_siwtxpow(struct net_device *dev,
 
 static int prism2_ioctl_giwtxpow(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_param *rrq, char *extra)
+				 union iwreq_data *wrqu, char *extra)
 {
 #ifdef RAW_TXPOWER_SETTING
+	struct iw_param *rrq = &wrqu->bitrate;
 	struct hostap_interface *iface;
 	local_info_t *local;
 	u16 resp0;
@@ -1720,8 +1749,9 @@ static inline int prism2_request_scan(struct net_device *dev)
 
 static int prism2_ioctl_siwscan(struct net_device *dev,
 				struct iw_request_info *info,
-				struct iw_point *data, char *extra)
+				union iwreq_data *wrqu, char *extra)
 {
+	struct iw_point *data = &wrqu->data;
 	struct hostap_interface *iface;
 	local_info_t *local;
 	int ret;
@@ -2068,8 +2098,9 @@ static inline int prism2_ioctl_giwscan_sta(struct net_device *dev,
 
 static int prism2_ioctl_giwscan(struct net_device *dev,
 				struct iw_request_info *info,
-				struct iw_point *data, char *extra)
+				union iwreq_data *wrqu, char *extra)
 {
+	struct iw_point *data = &wrqu->data;
 	struct hostap_interface *iface;
 	local_info_t *local;
 	int res;
@@ -2314,7 +2345,7 @@ static int prism2_ioctl_priv_inquire(struct net_device *dev, int *i)
 
 static int prism2_ioctl_priv_prism2_param(struct net_device *dev,
 					  struct iw_request_info *info,
-					  void *wrqu, char *extra)
+					  union iwreq_data *wrqu, char *extra)
 {
 	struct hostap_interface *iface;
 	local_info_t *local;
@@ -2665,7 +2696,7 @@ static int prism2_ioctl_priv_prism2_param(struct net_device *dev,
 
 static int prism2_ioctl_priv_get_prism2_param(struct net_device *dev,
 					      struct iw_request_info *info,
-					      void *wrqu, char *extra)
+					      union iwreq_data *wrqu, char *extra)
 {
 	struct hostap_interface *iface;
 	local_info_t *local;
@@ -2852,7 +2883,7 @@ static int prism2_ioctl_priv_get_prism2_param(struct net_device *dev,
 
 static int prism2_ioctl_priv_readmif(struct net_device *dev,
 				     struct iw_request_info *info,
-				     void *wrqu, char *extra)
+				     union iwreq_data *wrqu, char *extra)
 {
 	struct hostap_interface *iface;
 	local_info_t *local;
@@ -2873,7 +2904,7 @@ static int prism2_ioctl_priv_readmif(struct net_device *dev,
 
 static int prism2_ioctl_priv_writemif(struct net_device *dev,
 				      struct iw_request_info *info,
-				      void *wrqu, char *extra)
+				      union iwreq_data *wrqu, char *extra)
 {
 	struct hostap_interface *iface;
 	local_info_t *local;
@@ -2911,7 +2942,7 @@ static int prism2_ioctl_priv_monitor(struct net_device *dev, int *i)
 		/* Disable monitor mode - old mode was not saved, so go to
 		 * Master mode */
 		mode = IW_MODE_MASTER;
-		ret = prism2_ioctl_siwmode(dev, NULL, &mode, NULL);
+		ret = prism2_ioctl_siwmode(dev, NULL, (union iwreq_data *)&mode, NULL);
 	} else if (*i == 1) {
 		/* netlink socket mode is not supported anymore since it did
 		 * not separate different devices from each other and was not
@@ -2928,7 +2959,7 @@ static int prism2_ioctl_priv_monitor(struct net_device *dev, int *i)
 			break;
 		}
 		mode = IW_MODE_MONITOR;
-		ret = prism2_ioctl_siwmode(dev, NULL, &mode, NULL);
+		ret = prism2_ioctl_siwmode(dev, NULL, (union iwreq_data *)&mode, NULL);
 		hostap_monitor_mode_enable(local);
 	} else
 		ret = -EINVAL;
@@ -3094,8 +3125,9 @@ static int prism2_set_genericelement(struct net_device *dev, u8 *elem,
 
 static int prism2_ioctl_siwauth(struct net_device *dev,
 				struct iw_request_info *info,
-				struct iw_param *data, char *extra)
+				union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *data = &wrqu->param;
 	struct hostap_interface *iface = netdev_priv(dev);
 	local_info_t *local = iface->local;
 
@@ -3160,8 +3192,9 @@ static int prism2_ioctl_siwauth(struct net_device *dev,
 
 static int prism2_ioctl_giwauth(struct net_device *dev,
 				struct iw_request_info *info,
-				struct iw_param *data, char *extra)
+				union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *data = &wrqu->param;
 	struct hostap_interface *iface = netdev_priv(dev);
 	local_info_t *local = iface->local;
 
@@ -3199,8 +3232,9 @@ static int prism2_ioctl_giwauth(struct net_device *dev,
 
 static int prism2_ioctl_siwencodeext(struct net_device *dev,
 				     struct iw_request_info *info,
-				     struct iw_point *erq, char *extra)
+				     union iwreq_data *wrqu, char *extra)
 {
+	struct iw_point *erq = &wrqu->encoding;
 	struct hostap_interface *iface = netdev_priv(dev);
 	local_info_t *local = iface->local;
 	struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
@@ -3373,8 +3407,9 @@ static int prism2_ioctl_siwencodeext(struct net_device *dev,
 
 static int prism2_ioctl_giwencodeext(struct net_device *dev,
 				     struct iw_request_info *info,
-				     struct iw_point *erq, char *extra)
+				     union iwreq_data *wrqu, char *extra)
 {
+	struct iw_point *erq = &wrqu->encoding;
 	struct hostap_interface *iface = netdev_priv(dev);
 	local_info_t *local = iface->local;
 	struct lib80211_crypt_data **crypt;
@@ -3681,16 +3716,19 @@ static int prism2_ioctl_set_assoc_ap_addr(local_info_t *local,
 
 static int prism2_ioctl_siwgenie(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_point *data, char *extra)
+				 union iwreq_data *wrqu, char *extra)
 {
+	struct iw_point *data = &wrqu->data;
+
 	return prism2_set_genericelement(dev, extra, data->length);
 }
 
 
 static int prism2_ioctl_giwgenie(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_point *data, char *extra)
+				 union iwreq_data *wrqu, char *extra)
 {
+	struct iw_point *data = &wrqu->data;
 	struct hostap_interface *iface = netdev_priv(dev);
 	local_info_t *local = iface->local;
 	int len = local->generic_elem_len - 2;
@@ -3728,7 +3766,7 @@ static int prism2_ioctl_set_generic_element(local_info_t *local,
 
 static int prism2_ioctl_siwmlme(struct net_device *dev,
 				struct iw_request_info *info,
-				struct iw_point *data, char *extra)
+				union iwreq_data *data, char *extra)
 {
 	struct hostap_interface *iface = netdev_priv(dev);
 	local_info_t *local = iface->local;
@@ -3943,10 +3981,10 @@ static const iw_handler prism2_handler[] =
 
 static const iw_handler prism2_private_handler[] =
 {							/* SIOCIWFIRSTPRIV + */
-	(iw_handler) prism2_ioctl_priv_prism2_param,	/* 0 */
-	(iw_handler) prism2_ioctl_priv_get_prism2_param, /* 1 */
-	(iw_handler) prism2_ioctl_priv_writemif,	/* 2 */
-	(iw_handler) prism2_ioctl_priv_readmif,		/* 3 */
+	prism2_ioctl_priv_prism2_param,	/* 0 */
+	prism2_ioctl_priv_get_prism2_param, /* 1 */
+	prism2_ioctl_priv_writemif,	/* 2 */
+	prism2_ioctl_priv_readmif,		/* 3 */
 };
 
 const struct iw_handler_def hostap_iw_handler_def =
diff --git a/drivers/net/wireless/intersil/orinoco/wext.c b/drivers/net/wireless/intersil/orinoco/wext.c
index 1d4dae4..0508fc1 100644
--- a/drivers/net/wireless/intersil/orinoco/wext.c
+++ b/drivers/net/wireless/intersil/orinoco/wext.c
@@ -154,9 +154,10 @@ static struct iw_statistics *orinoco_get_wireless_stats(struct net_device *dev)
 
 static int orinoco_ioctl_setwap(struct net_device *dev,
 				struct iw_request_info *info,
-				struct sockaddr *ap_addr,
+				union iwreq_data *wrqu,
 				char *extra)
 {
+	struct sockaddr *ap_addr = &wrqu->ap_addr;
 	struct orinoco_private *priv = ndev_priv(dev);
 	int err = -EINPROGRESS;		/* Call commit handler */
 	unsigned long flags;
@@ -213,9 +214,10 @@ static int orinoco_ioctl_setwap(struct net_device *dev,
 
 static int orinoco_ioctl_getwap(struct net_device *dev,
 				struct iw_request_info *info,
-				struct sockaddr *ap_addr,
+				union iwreq_data *wrqu,
 				char *extra)
 {
+	struct sockaddr *ap_addr = &wrqu->ap_addr;
 	struct orinoco_private *priv = ndev_priv(dev);
 
 	int err = 0;
@@ -234,9 +236,10 @@ static int orinoco_ioctl_getwap(struct net_device *dev,
 
 static int orinoco_ioctl_setiwencode(struct net_device *dev,
 				     struct iw_request_info *info,
-				     struct iw_point *erq,
+				     union iwreq_data *wrqu,
 				     char *keybuf)
 {
+	struct iw_point *erq = &wrqu->encoding;
 	struct orinoco_private *priv = ndev_priv(dev);
 	int index = (erq->flags & IW_ENCODE_INDEX) - 1;
 	int setindex = priv->tx_key;
@@ -325,9 +328,10 @@ static int orinoco_ioctl_setiwencode(struct net_device *dev,
 
 static int orinoco_ioctl_getiwencode(struct net_device *dev,
 				     struct iw_request_info *info,
-				     struct iw_point *erq,
+				     union iwreq_data *wrqu,
 				     char *keybuf)
 {
+	struct iw_point *erq = &wrqu->encoding;
 	struct orinoco_private *priv = ndev_priv(dev);
 	int index = (erq->flags & IW_ENCODE_INDEX) - 1;
 	unsigned long flags;
@@ -361,9 +365,10 @@ static int orinoco_ioctl_getiwencode(struct net_device *dev,
 
 static int orinoco_ioctl_setessid(struct net_device *dev,
 				  struct iw_request_info *info,
-				  struct iw_point *erq,
+				  union iwreq_data *wrqu,
 				  char *essidbuf)
 {
+	struct iw_point *erq = &wrqu->essid;
 	struct orinoco_private *priv = ndev_priv(dev);
 	unsigned long flags;
 
@@ -392,9 +397,10 @@ static int orinoco_ioctl_setessid(struct net_device *dev,
 
 static int orinoco_ioctl_getessid(struct net_device *dev,
 				  struct iw_request_info *info,
-				  struct iw_point *erq,
+				  union iwreq_data *wrqu,
 				  char *essidbuf)
 {
+	struct iw_point *erq = &wrqu->essid;
 	struct orinoco_private *priv = ndev_priv(dev);
 	int active;
 	int err = 0;
@@ -420,9 +426,10 @@ static int orinoco_ioctl_getessid(struct net_device *dev,
 
 static int orinoco_ioctl_setfreq(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_freq *frq,
+				 union iwreq_data *wrqu,
 				 char *extra)
 {
+	struct iw_freq *frq = &wrqu->freq;
 	struct orinoco_private *priv = ndev_priv(dev);
 	int chan = -1;
 	unsigned long flags;
@@ -469,9 +476,10 @@ static int orinoco_ioctl_setfreq(struct net_device *dev,
 
 static int orinoco_ioctl_getfreq(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_freq *frq,
+				 union iwreq_data *wrqu,
 				 char *extra)
 {
+	struct iw_freq *frq = &wrqu->freq;
 	struct orinoco_private *priv = ndev_priv(dev);
 	int tmp;
 
@@ -488,9 +496,10 @@ static int orinoco_ioctl_getfreq(struct net_device *dev,
 
 static int orinoco_ioctl_getsens(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_param *srq,
+				 union iwreq_data *wrqu,
 				 char *extra)
 {
+	struct iw_param *srq = &wrqu->sens;
 	struct orinoco_private *priv = ndev_priv(dev);
 	struct hermes *hw = &priv->hw;
 	u16 val;
@@ -517,9 +526,10 @@ static int orinoco_ioctl_getsens(struct net_device *dev,
 
 static int orinoco_ioctl_setsens(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_param *srq,
+				 union iwreq_data *wrqu,
 				 char *extra)
 {
+	struct iw_param *srq = &wrqu->sens;
 	struct orinoco_private *priv = ndev_priv(dev);
 	int val = srq->value;
 	unsigned long flags;
@@ -540,9 +550,10 @@ static int orinoco_ioctl_setsens(struct net_device *dev,
 
 static int orinoco_ioctl_setrate(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_param *rrq,
+				 union iwreq_data *wrqu,
 				 char *extra)
 {
+	struct iw_param *rrq = &wrqu->bitrate;
 	struct orinoco_private *priv = ndev_priv(dev);
 	int ratemode;
 	int bitrate; /* 100s of kilobits */
@@ -574,9 +585,10 @@ static int orinoco_ioctl_setrate(struct net_device *dev,
 
 static int orinoco_ioctl_getrate(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_param *rrq,
+				 union iwreq_data *wrqu,
 				 char *extra)
 {
+	struct iw_param *rrq = &wrqu->bitrate;
 	struct orinoco_private *priv = ndev_priv(dev);
 	int err = 0;
 	int bitrate, automatic;
@@ -610,9 +622,10 @@ static int orinoco_ioctl_getrate(struct net_device *dev,
 
 static int orinoco_ioctl_setpower(struct net_device *dev,
 				  struct iw_request_info *info,
-				  struct iw_param *prq,
+				  union iwreq_data *wrqu,
 				  char *extra)
 {
+	struct iw_param *prq = &wrqu->power;
 	struct orinoco_private *priv = ndev_priv(dev);
 	int err = -EINPROGRESS;		/* Call commit handler */
 	unsigned long flags;
@@ -664,9 +677,10 @@ static int orinoco_ioctl_setpower(struct net_device *dev,
 
 static int orinoco_ioctl_getpower(struct net_device *dev,
 				  struct iw_request_info *info,
-				  struct iw_param *prq,
+				  union iwreq_data *wrqu,
 				  char *extra)
 {
+	struct iw_param *prq = &wrqu->power;
 	struct orinoco_private *priv = ndev_priv(dev);
 	struct hermes *hw = &priv->hw;
 	int err = 0;
@@ -1097,7 +1111,7 @@ static int orinoco_ioctl_set_mlme(struct net_device *dev,
 
 static int orinoco_ioctl_reset(struct net_device *dev,
 			       struct iw_request_info *info,
-			       void *wrqu,
+			       union iwreq_data *wrqu,
 			       char *extra)
 {
 	struct orinoco_private *priv = ndev_priv(dev);
@@ -1121,7 +1135,7 @@ static int orinoco_ioctl_reset(struct net_device *dev,
 
 static int orinoco_ioctl_setibssport(struct net_device *dev,
 				     struct iw_request_info *info,
-				     void *wrqu,
+				     union iwreq_data *wrqu,
 				     char *extra)
 
 {
@@ -1143,7 +1157,7 @@ static int orinoco_ioctl_setibssport(struct net_device *dev,
 
 static int orinoco_ioctl_getibssport(struct net_device *dev,
 				     struct iw_request_info *info,
-				     void *wrqu,
+				     union iwreq_data *wrqu,
 				     char *extra)
 {
 	struct orinoco_private *priv = ndev_priv(dev);
@@ -1155,7 +1169,7 @@ static int orinoco_ioctl_getibssport(struct net_device *dev,
 
 static int orinoco_ioctl_setport3(struct net_device *dev,
 				  struct iw_request_info *info,
-				  void *wrqu,
+				  union iwreq_data *wrqu,
 				  char *extra)
 {
 	struct orinoco_private *priv = ndev_priv(dev);
@@ -1201,7 +1215,7 @@ static int orinoco_ioctl_setport3(struct net_device *dev,
 
 static int orinoco_ioctl_getport3(struct net_device *dev,
 				  struct iw_request_info *info,
-				  void *wrqu,
+				  union iwreq_data *wrqu,
 				  char *extra)
 {
 	struct orinoco_private *priv = ndev_priv(dev);
@@ -1213,7 +1227,7 @@ static int orinoco_ioctl_getport3(struct net_device *dev,
 
 static int orinoco_ioctl_setpreamble(struct net_device *dev,
 				     struct iw_request_info *info,
-				     void *wrqu,
+				     union iwreq_data *wrqu,
 				     char *extra)
 {
 	struct orinoco_private *priv = ndev_priv(dev);
@@ -1245,7 +1259,7 @@ static int orinoco_ioctl_setpreamble(struct net_device *dev,
 
 static int orinoco_ioctl_getpreamble(struct net_device *dev,
 				     struct iw_request_info *info,
-				     void *wrqu,
+				     union iwreq_data *wrqu,
 				     char *extra)
 {
 	struct orinoco_private *priv = ndev_priv(dev);
@@ -1265,9 +1279,10 @@ static int orinoco_ioctl_getpreamble(struct net_device *dev,
  * For Wireless Tools 25 and 26 append "dummy" are the end. */
 static int orinoco_ioctl_getrid(struct net_device *dev,
 				struct iw_request_info *info,
-				struct iw_point *data,
+				union iwreq_data *wrqu,
 				char *extra)
 {
+	struct iw_point *data = &wrqu->data;
 	struct orinoco_private *priv = ndev_priv(dev);
 	struct hermes *hw = &priv->hw;
 	int rid = data->flags;
@@ -1303,7 +1318,7 @@ static int orinoco_ioctl_getrid(struct net_device *dev,
 /* Commit handler, called after set operations */
 static int orinoco_ioctl_commit(struct net_device *dev,
 				struct iw_request_info *info,
-				void *wrqu,
+				union iwreq_data *wrqu,
 				char *extra)
 {
 	struct orinoco_private *priv = ndev_priv(dev);
@@ -1347,36 +1362,36 @@ static const struct iw_priv_args orinoco_privtab[] = {
  */
 
 static const iw_handler	orinoco_handler[] = {
-	IW_HANDLER(SIOCSIWCOMMIT,	(iw_handler)orinoco_ioctl_commit),
-	IW_HANDLER(SIOCGIWNAME,		(iw_handler)cfg80211_wext_giwname),
-	IW_HANDLER(SIOCSIWFREQ,		(iw_handler)orinoco_ioctl_setfreq),
-	IW_HANDLER(SIOCGIWFREQ,		(iw_handler)orinoco_ioctl_getfreq),
-	IW_HANDLER(SIOCSIWMODE,		(iw_handler)cfg80211_wext_siwmode),
-	IW_HANDLER(SIOCGIWMODE,		(iw_handler)cfg80211_wext_giwmode),
-	IW_HANDLER(SIOCSIWSENS,		(iw_handler)orinoco_ioctl_setsens),
-	IW_HANDLER(SIOCGIWSENS,		(iw_handler)orinoco_ioctl_getsens),
-	IW_HANDLER(SIOCGIWRANGE,	(iw_handler)cfg80211_wext_giwrange),
+	IW_HANDLER(SIOCSIWCOMMIT,	orinoco_ioctl_commit),
+	IW_HANDLER(SIOCGIWNAME,		cfg80211_wext_giwname),
+	IW_HANDLER(SIOCSIWFREQ,		orinoco_ioctl_setfreq),
+	IW_HANDLER(SIOCGIWFREQ,		orinoco_ioctl_getfreq),
+	IW_HANDLER(SIOCSIWMODE,		cfg80211_wext_siwmode),
+	IW_HANDLER(SIOCGIWMODE,		cfg80211_wext_giwmode),
+	IW_HANDLER(SIOCSIWSENS,		orinoco_ioctl_setsens),
+	IW_HANDLER(SIOCGIWSENS,		orinoco_ioctl_getsens),
+	IW_HANDLER(SIOCGIWRANGE,	cfg80211_wext_giwrange),
 	IW_HANDLER(SIOCSIWSPY,		iw_handler_set_spy),
 	IW_HANDLER(SIOCGIWSPY,		iw_handler_get_spy),
 	IW_HANDLER(SIOCSIWTHRSPY,	iw_handler_set_thrspy),
 	IW_HANDLER(SIOCGIWTHRSPY,	iw_handler_get_thrspy),
-	IW_HANDLER(SIOCSIWAP,		(iw_handler)orinoco_ioctl_setwap),
-	IW_HANDLER(SIOCGIWAP,		(iw_handler)orinoco_ioctl_getwap),
-	IW_HANDLER(SIOCSIWSCAN,		(iw_handler)cfg80211_wext_siwscan),
-	IW_HANDLER(SIOCGIWSCAN,		(iw_handler)cfg80211_wext_giwscan),
-	IW_HANDLER(SIOCSIWESSID,	(iw_handler)orinoco_ioctl_setessid),
-	IW_HANDLER(SIOCGIWESSID,	(iw_handler)orinoco_ioctl_getessid),
-	IW_HANDLER(SIOCSIWRATE,		(iw_handler)orinoco_ioctl_setrate),
-	IW_HANDLER(SIOCGIWRATE,		(iw_handler)orinoco_ioctl_getrate),
-	IW_HANDLER(SIOCSIWRTS,		(iw_handler)cfg80211_wext_siwrts),
-	IW_HANDLER(SIOCGIWRTS,		(iw_handler)cfg80211_wext_giwrts),
-	IW_HANDLER(SIOCSIWFRAG,		(iw_handler)cfg80211_wext_siwfrag),
-	IW_HANDLER(SIOCGIWFRAG,		(iw_handler)cfg80211_wext_giwfrag),
-	IW_HANDLER(SIOCGIWRETRY,	(iw_handler)cfg80211_wext_giwretry),
-	IW_HANDLER(SIOCSIWENCODE,	(iw_handler)orinoco_ioctl_setiwencode),
-	IW_HANDLER(SIOCGIWENCODE,	(iw_handler)orinoco_ioctl_getiwencode),
-	IW_HANDLER(SIOCSIWPOWER,	(iw_handler)orinoco_ioctl_setpower),
-	IW_HANDLER(SIOCGIWPOWER,	(iw_handler)orinoco_ioctl_getpower),
+	IW_HANDLER(SIOCSIWAP,		orinoco_ioctl_setwap),
+	IW_HANDLER(SIOCGIWAP,		orinoco_ioctl_getwap),
+	IW_HANDLER(SIOCSIWSCAN,		cfg80211_wext_siwscan),
+	IW_HANDLER(SIOCGIWSCAN,		cfg80211_wext_giwscan),
+	IW_HANDLER(SIOCSIWESSID,	orinoco_ioctl_setessid),
+	IW_HANDLER(SIOCGIWESSID,	orinoco_ioctl_getessid),
+	IW_HANDLER(SIOCSIWRATE,		orinoco_ioctl_setrate),
+	IW_HANDLER(SIOCGIWRATE,		orinoco_ioctl_getrate),
+	IW_HANDLER(SIOCSIWRTS,		cfg80211_wext_siwrts),
+	IW_HANDLER(SIOCGIWRTS,		cfg80211_wext_giwrts),
+	IW_HANDLER(SIOCSIWFRAG,		cfg80211_wext_siwfrag),
+	IW_HANDLER(SIOCGIWFRAG,		cfg80211_wext_giwfrag),
+	IW_HANDLER(SIOCGIWRETRY,	cfg80211_wext_giwretry),
+	IW_HANDLER(SIOCSIWENCODE,	orinoco_ioctl_setiwencode),
+	IW_HANDLER(SIOCGIWENCODE,	orinoco_ioctl_getiwencode),
+	IW_HANDLER(SIOCSIWPOWER,	orinoco_ioctl_setpower),
+	IW_HANDLER(SIOCGIWPOWER,	orinoco_ioctl_getpower),
 	IW_HANDLER(SIOCSIWGENIE,	orinoco_ioctl_set_genie),
 	IW_HANDLER(SIOCGIWGENIE,	orinoco_ioctl_get_genie),
 	IW_HANDLER(SIOCSIWMLME,		orinoco_ioctl_set_mlme),
@@ -1391,15 +1406,15 @@ static const iw_handler	orinoco_handler[] = {
   Added typecasting since we no longer use iwreq_data -- Moustafa
  */
 static const iw_handler	orinoco_private_handler[] = {
-	[0] = (iw_handler)orinoco_ioctl_reset,
-	[1] = (iw_handler)orinoco_ioctl_reset,
-	[2] = (iw_handler)orinoco_ioctl_setport3,
-	[3] = (iw_handler)orinoco_ioctl_getport3,
-	[4] = (iw_handler)orinoco_ioctl_setpreamble,
-	[5] = (iw_handler)orinoco_ioctl_getpreamble,
-	[6] = (iw_handler)orinoco_ioctl_setibssport,
-	[7] = (iw_handler)orinoco_ioctl_getibssport,
-	[9] = (iw_handler)orinoco_ioctl_getrid,
+	[0] = orinoco_ioctl_reset,
+	[1] = orinoco_ioctl_reset,
+	[2] = orinoco_ioctl_setport3,
+	[3] = orinoco_ioctl_getport3,
+	[4] = orinoco_ioctl_setpreamble,
+	[5] = orinoco_ioctl_getpreamble,
+	[6] = orinoco_ioctl_setibssport,
+	[7] = orinoco_ioctl_getibssport,
+	[9] = orinoco_ioctl_getrid,
 };
 
 const struct iw_handler_def orinoco_handler_def = {
diff --git a/drivers/net/wireless/intersil/prism54/isl_ioctl.c b/drivers/net/wireless/intersil/prism54/isl_ioctl.c
index 48e8a97..3499ec8 100644
--- a/drivers/net/wireless/intersil/prism54/isl_ioctl.c
+++ b/drivers/net/wireless/intersil/prism54/isl_ioctl.c
@@ -45,7 +45,7 @@ static void prism54_wpa_bss_ie_add(islpci_private *priv, u8 *bssid,
 				u8 *wpa_ie, size_t wpa_ie_len);
 static size_t prism54_wpa_bss_ie_get(islpci_private *priv, u8 *bssid, u8 *wpa_ie);
 static int prism54_set_wpa(struct net_device *, struct iw_request_info *,
-				__u32 *, char *);
+				union iwreq_data *, char *);
 
 /* In 500 kbps */
 static const unsigned char scan_rate_list[] = { 2, 4, 11, 22,
@@ -240,7 +240,7 @@ prism54_get_wireless_stats(struct net_device *ndev)
 
 static int
 prism54_commit(struct net_device *ndev, struct iw_request_info *info,
-	       char *cwrq, char *extra)
+	       union iwreq_data *cwrq, char *extra)
 {
 	islpci_private *priv = netdev_priv(ndev);
 
@@ -256,8 +256,9 @@ prism54_commit(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_get_name(struct net_device *ndev, struct iw_request_info *info,
-		 char *cwrq, char *extra)
+		 union iwreq_data *wrqu, char *extra)
 {
+	char *cwrq = wrqu->name;
 	islpci_private *priv = netdev_priv(ndev);
 	char *capabilities;
 	union oid_res_t r;
@@ -287,8 +288,9 @@ prism54_get_name(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_set_freq(struct net_device *ndev, struct iw_request_info *info,
-		 struct iw_freq *fwrq, char *extra)
+		 union iwreq_data *wrqu, char *extra)
 {
+	struct iw_freq *fwrq = &wrqu->freq;
 	islpci_private *priv = netdev_priv(ndev);
 	int rvalue;
 	u32 c;
@@ -307,8 +309,9 @@ prism54_set_freq(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_get_freq(struct net_device *ndev, struct iw_request_info *info,
-		 struct iw_freq *fwrq, char *extra)
+		 union iwreq_data *wrqu, char *extra)
 {
+	struct iw_freq *fwrq = &wrqu->freq;
 	islpci_private *priv = netdev_priv(ndev);
 	union oid_res_t r;
 	int rvalue;
@@ -324,8 +327,9 @@ prism54_get_freq(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_set_mode(struct net_device *ndev, struct iw_request_info *info,
-		 __u32 * uwrq, char *extra)
+		 union iwreq_data *wrqu, char *extra)
 {
+	__u32 *uwrq = &wrqu->mode;
 	islpci_private *priv = netdev_priv(ndev);
 	u32 mlmeautolevel = CARD_DEFAULT_MLME_MODE;
 
@@ -368,8 +372,9 @@ prism54_set_mode(struct net_device *ndev, struct iw_request_info *info,
 /* Use mib cache */
 static int
 prism54_get_mode(struct net_device *ndev, struct iw_request_info *info,
-		 __u32 * uwrq, char *extra)
+		 union iwreq_data *wrqu, char *extra)
 {
+	__u32 *uwrq = &wrqu->mode;
 	islpci_private *priv = netdev_priv(ndev);
 
 	BUG_ON((priv->iw_mode < IW_MODE_AUTO) || (priv->iw_mode >
@@ -386,8 +391,9 @@ prism54_get_mode(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_set_sens(struct net_device *ndev, struct iw_request_info *info,
-		 struct iw_param *vwrq, char *extra)
+		 union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *vwrq = &wrqu->sens;
 	islpci_private *priv = netdev_priv(ndev);
 	u32 sens;
 
@@ -399,8 +405,9 @@ prism54_set_sens(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_get_sens(struct net_device *ndev, struct iw_request_info *info,
-		 struct iw_param *vwrq, char *extra)
+		 union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *vwrq = &wrqu->sens;
 	islpci_private *priv = netdev_priv(ndev);
 	union oid_res_t r;
 	int rvalue;
@@ -416,8 +423,9 @@ prism54_get_sens(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_get_range(struct net_device *ndev, struct iw_request_info *info,
-		  struct iw_point *dwrq, char *extra)
+		  union iwreq_data *wrqu, char *extra)
 {
+	struct iw_point *dwrq = &wrqu->data;
 	struct iw_range *range = (struct iw_range *) extra;
 	islpci_private *priv = netdev_priv(ndev);
 	u8 *data;
@@ -521,8 +529,9 @@ prism54_get_range(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_set_wap(struct net_device *ndev, struct iw_request_info *info,
-		struct sockaddr *awrq, char *extra)
+		union iwreq_data *wrqu, char *extra)
 {
+	struct sockaddr *awrq = &wrqu->ap_addr;
 	islpci_private *priv = netdev_priv(ndev);
 	char bssid[6];
 	int rvalue;
@@ -543,8 +552,9 @@ prism54_set_wap(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_get_wap(struct net_device *ndev, struct iw_request_info *info,
-		struct sockaddr *awrq, char *extra)
+		union iwreq_data *wrqu, char *extra)
 {
+	struct sockaddr *awrq = &wrqu->ap_addr;
 	islpci_private *priv = netdev_priv(ndev);
 	union oid_res_t r;
 	int rvalue;
@@ -559,7 +569,7 @@ prism54_get_wap(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_set_scan(struct net_device *dev, struct iw_request_info *info,
-		 struct iw_param *vwrq, char *extra)
+		 union iwreq_data *vwrq, char *extra)
 {
 	/* hehe the device does this automagicaly */
 	return 0;
@@ -679,8 +689,9 @@ prism54_translate_bss(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_get_scan(struct net_device *ndev, struct iw_request_info *info,
-		 struct iw_point *dwrq, char *extra)
+		 union iwreq_data *wrqu, char *extra)
 {
+	struct iw_point *dwrq = &wrqu->data;
 	islpci_private *priv = netdev_priv(ndev);
 	int i, rvalue;
 	struct obj_bsslist *bsslist;
@@ -733,8 +744,9 @@ prism54_get_scan(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_set_essid(struct net_device *ndev, struct iw_request_info *info,
-		  struct iw_point *dwrq, char *extra)
+		  union iwreq_data *wrqu, char *extra)
 {
+	struct iw_point *dwrq = &wrqu->data;
 	islpci_private *priv = netdev_priv(ndev);
 	struct obj_ssid essid;
 
@@ -760,8 +772,9 @@ prism54_set_essid(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_get_essid(struct net_device *ndev, struct iw_request_info *info,
-		  struct iw_point *dwrq, char *extra)
+		  union iwreq_data *wrqu, char *extra)
 {
+	struct iw_point *dwrq = &wrqu->data;
 	islpci_private *priv = netdev_priv(ndev);
 	struct obj_ssid *essid;
 	union oid_res_t r;
@@ -790,8 +803,9 @@ prism54_get_essid(struct net_device *ndev, struct iw_request_info *info,
  */
 static int
 prism54_set_nick(struct net_device *ndev, struct iw_request_info *info,
-		 struct iw_point *dwrq, char *extra)
+		 union iwreq_data *wrqu, char *extra)
 {
+	struct iw_point *dwrq = &wrqu->data;
 	islpci_private *priv = netdev_priv(ndev);
 
 	if (dwrq->length > IW_ESSID_MAX_SIZE)
@@ -807,8 +821,9 @@ prism54_set_nick(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_get_nick(struct net_device *ndev, struct iw_request_info *info,
-		 struct iw_point *dwrq, char *extra)
+		 union iwreq_data *wrqu, char *extra)
 {
+	struct iw_point *dwrq = &wrqu->data;
 	islpci_private *priv = netdev_priv(ndev);
 
 	dwrq->length = 0;
@@ -826,9 +841,9 @@ prism54_get_nick(struct net_device *ndev, struct iw_request_info *info,
 static int
 prism54_set_rate(struct net_device *ndev,
 		 struct iw_request_info *info,
-		 struct iw_param *vwrq, char *extra)
+		 union iwreq_data *wrqu, char *extra)
 {
-
+	struct iw_param *vwrq = &wrqu->bitrate;
 	islpci_private *priv = netdev_priv(ndev);
 	u32 rate, profile;
 	char *data;
@@ -899,8 +914,9 @@ prism54_set_rate(struct net_device *ndev,
 static int
 prism54_get_rate(struct net_device *ndev,
 		 struct iw_request_info *info,
-		 struct iw_param *vwrq, char *extra)
+		 union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *vwrq = &wrqu->bitrate;
 	islpci_private *priv = netdev_priv(ndev);
 	int rvalue;
 	char *data;
@@ -926,8 +942,9 @@ prism54_get_rate(struct net_device *ndev,
 
 static int
 prism54_set_rts(struct net_device *ndev, struct iw_request_info *info,
-		struct iw_param *vwrq, char *extra)
+		union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *vwrq = &wrqu->rts;
 	islpci_private *priv = netdev_priv(ndev);
 
 	return mgt_set_request(priv, DOT11_OID_RTSTHRESH, 0, &vwrq->value);
@@ -935,8 +952,9 @@ prism54_set_rts(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_get_rts(struct net_device *ndev, struct iw_request_info *info,
-		struct iw_param *vwrq, char *extra)
+		union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *vwrq = &wrqu->rts;
 	islpci_private *priv = netdev_priv(ndev);
 	union oid_res_t r;
 	int rvalue;
@@ -950,8 +968,9 @@ prism54_get_rts(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_set_frag(struct net_device *ndev, struct iw_request_info *info,
-		 struct iw_param *vwrq, char *extra)
+		 union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *vwrq = &wrqu->frag;
 	islpci_private *priv = netdev_priv(ndev);
 
 	return mgt_set_request(priv, DOT11_OID_FRAGTHRESH, 0, &vwrq->value);
@@ -959,8 +978,9 @@ prism54_set_frag(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_get_frag(struct net_device *ndev, struct iw_request_info *info,
-		 struct iw_param *vwrq, char *extra)
+		 union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *vwrq = &wrqu->frag;
 	islpci_private *priv = netdev_priv(ndev);
 	union oid_res_t r;
 	int rvalue;
@@ -980,8 +1000,9 @@ prism54_get_frag(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_set_retry(struct net_device *ndev, struct iw_request_info *info,
-		  struct iw_param *vwrq, char *extra)
+		  union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *vwrq = &wrqu->retry;
 	islpci_private *priv = netdev_priv(ndev);
 	u32 slimit = 0, llimit = 0;	/* short and long limit */
 	u32 lifetime = 0;
@@ -1022,8 +1043,9 @@ prism54_set_retry(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_get_retry(struct net_device *ndev, struct iw_request_info *info,
-		  struct iw_param *vwrq, char *extra)
+		  union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *vwrq = &wrqu->retry;
 	islpci_private *priv = netdev_priv(ndev);
 	union oid_res_t r;
 	int rvalue = 0;
@@ -1054,8 +1076,9 @@ prism54_get_retry(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_set_encode(struct net_device *ndev, struct iw_request_info *info,
-		   struct iw_point *dwrq, char *extra)
+		   union iwreq_data *wrqu, char *extra)
 {
+	struct iw_point *dwrq = &wrqu->data;
 	islpci_private *priv = netdev_priv(ndev);
 	int rvalue = 0, force = 0;
 	int authen = DOT11_AUTH_OS, invoke = 0, exunencrypt = 0;
@@ -1155,8 +1178,9 @@ prism54_set_encode(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_get_encode(struct net_device *ndev, struct iw_request_info *info,
-		   struct iw_point *dwrq, char *extra)
+		   union iwreq_data *wrqu, char *extra)
 {
+	struct iw_point *dwrq = &wrqu->data;
 	islpci_private *priv = netdev_priv(ndev);
 	struct obj_key *key;
 	u32 devindex, index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
@@ -1203,8 +1227,9 @@ prism54_get_encode(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_get_txpower(struct net_device *ndev, struct iw_request_info *info,
-		    struct iw_param *vwrq, char *extra)
+		    union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *vwrq = &wrqu->txpower;
 	islpci_private *priv = netdev_priv(ndev);
 	union oid_res_t r;
 	int rvalue;
@@ -1223,8 +1248,9 @@ prism54_get_txpower(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_set_txpower(struct net_device *ndev, struct iw_request_info *info,
-		    struct iw_param *vwrq, char *extra)
+		    union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *vwrq = &wrqu->txpower;
 	islpci_private *priv = netdev_priv(ndev);
 	s32 u = vwrq->value;
 
@@ -1249,8 +1275,9 @@ prism54_set_txpower(struct net_device *ndev, struct iw_request_info *info,
 
 static int prism54_set_genie(struct net_device *ndev,
 			     struct iw_request_info *info,
-			     struct iw_point *data, char *extra)
+			     union iwreq_data *wrqu, char *extra)
 {
+	struct iw_point *data = &wrqu->data;
 	islpci_private *priv = netdev_priv(ndev);
 	int alen, ret = 0;
 	struct obj_attachment *attach;
@@ -1298,8 +1325,9 @@ static int prism54_set_genie(struct net_device *ndev,
 
 static int prism54_get_genie(struct net_device *ndev,
 			     struct iw_request_info *info,
-			     struct iw_point *data, char *extra)
+			     union iwreq_data *wrqu, char *extra)
 {
+	struct iw_point *data = &wrqu->data;
 	islpci_private *priv = netdev_priv(ndev);
 	int len = priv->wpa_ie_len;
 
@@ -1739,7 +1767,7 @@ out:
 
 static int
 prism54_reset(struct net_device *ndev, struct iw_request_info *info,
-	      __u32 * uwrq, char *extra)
+	      union iwreq_data * uwrq, char *extra)
 {
 	islpci_reset(netdev_priv(ndev), 0);
 
@@ -1748,8 +1776,9 @@ prism54_reset(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_get_oid(struct net_device *ndev, struct iw_request_info *info,
-		struct iw_point *dwrq, char *extra)
+		union iwreq_data *wrqu, char *extra)
 {
+	struct iw_point *dwrq = &wrqu->data;
 	union oid_res_t r;
 	int rvalue;
 	enum oid_num_t n = dwrq->flags;
@@ -1763,8 +1792,9 @@ prism54_get_oid(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_set_u32(struct net_device *ndev, struct iw_request_info *info,
-		__u32 * uwrq, char *extra)
+		union iwreq_data *wrqu, char *extra)
 {
+	__u32 * uwrq = &wrqu->mode;
 	u32 oid = uwrq[0], u = uwrq[1];
 
 	return mgt_set_request(netdev_priv(ndev), oid, 0, &u);
@@ -1772,8 +1802,9 @@ prism54_set_u32(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_set_raw(struct net_device *ndev, struct iw_request_info *info,
-		struct iw_point *dwrq, char *extra)
+		union iwreq_data *wrqu, char *extra)
 {
+	struct iw_point *dwrq = &wrqu->data;
 	u32 oid = dwrq->flags;
 
 	return mgt_set_request(netdev_priv(ndev), oid, 0, extra);
@@ -1819,7 +1850,7 @@ prism54_acl_clean(struct islpci_acl *acl)
 
 static int
 prism54_add_mac(struct net_device *ndev, struct iw_request_info *info,
-		struct sockaddr *awrq, char *extra)
+		union iwreq_data *awrq, char *extra)
 {
 	islpci_private *priv = netdev_priv(ndev);
 	struct islpci_acl *acl = &priv->acl;
@@ -1848,7 +1879,7 @@ prism54_add_mac(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_del_mac(struct net_device *ndev, struct iw_request_info *info,
-		struct sockaddr *awrq, char *extra)
+		union iwreq_data *awrq, char *extra)
 {
 	islpci_private *priv = netdev_priv(ndev);
 	struct islpci_acl *acl = &priv->acl;
@@ -1875,8 +1906,9 @@ prism54_del_mac(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_get_mac(struct net_device *ndev, struct iw_request_info *info,
-		struct iw_point *dwrq, char *extra)
+		union iwreq_data *wrqu, char *extra)
 {
+	struct iw_point *dwrq = &wrqu->data;
 	islpci_private *priv = netdev_priv(ndev);
 	struct islpci_acl *acl = &priv->acl;
 	struct mac_entry *entry;
@@ -1903,8 +1935,9 @@ prism54_get_mac(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_set_policy(struct net_device *ndev, struct iw_request_info *info,
-		   __u32 * uwrq, char *extra)
+		   union iwreq_data *wrqu, char *extra)
 {
+	__u32 * uwrq = &wrqu->mode;
 	islpci_private *priv = netdev_priv(ndev);
 	struct islpci_acl *acl = &priv->acl;
 	u32 mlmeautolevel;
@@ -1939,8 +1972,9 @@ prism54_set_policy(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_get_policy(struct net_device *ndev, struct iw_request_info *info,
-		   __u32 * uwrq, char *extra)
+		   union iwreq_data *wrqu, char *extra)
 {
+	__u32 * uwrq = &wrqu->mode;
 	islpci_private *priv = netdev_priv(ndev);
 	struct islpci_acl *acl = &priv->acl;
 
@@ -1979,7 +2013,7 @@ prism54_mac_accept(struct islpci_acl *acl, char *mac)
 
 static int
 prism54_kick_all(struct net_device *ndev, struct iw_request_info *info,
-		 struct iw_point *dwrq, char *extra)
+		 union iwreq_data *dwrq, char *extra)
 {
 	struct obj_mlme *mlme;
 	int rvalue;
@@ -1999,7 +2033,7 @@ prism54_kick_all(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_kick_mac(struct net_device *ndev, struct iw_request_info *info,
-		 struct sockaddr *awrq, char *extra)
+		 union iwreq_data *awrq, char *extra)
 {
 	struct obj_mlme *mlme;
 	struct sockaddr *addr = (struct sockaddr *) extra;
@@ -2085,8 +2119,7 @@ link_changed(struct net_device *ndev, u32 bitrate)
 		netif_carrier_on(ndev);
 		if (priv->iw_mode == IW_MODE_INFRA) {
 			union iwreq_data uwrq;
-			prism54_get_wap(ndev, NULL, (struct sockaddr *) &uwrq,
-					NULL);
+			prism54_get_wap(ndev, NULL, &uwrq, NULL);
 			wireless_send_event(ndev, SIOCGIWAP, &uwrq, NULL);
 		} else
 			send_simple_event(netdev_priv(ndev),
@@ -2498,8 +2531,9 @@ prism54_set_mac_address(struct net_device *ndev, void *addr)
 
 static int
 prism54_set_wpa(struct net_device *ndev, struct iw_request_info *info,
-		__u32 * uwrq, char *extra)
+		union iwreq_data *wrqu, char *extra)
 {
+	__u32 * uwrq = &wrqu->mode;
 	islpci_private *priv = netdev_priv(ndev);
 	u32 mlme, authen, dot1x, filter, wep;
 
@@ -2542,8 +2576,9 @@ prism54_set_wpa(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_get_wpa(struct net_device *ndev, struct iw_request_info *info,
-		__u32 * uwrq, char *extra)
+		union iwreq_data *wrqu, char *extra)
 {
+	__u32 * uwrq = &wrqu->mode;
 	islpci_private *priv = netdev_priv(ndev);
 	*uwrq = priv->wpa;
 	return 0;
@@ -2551,8 +2586,9 @@ prism54_get_wpa(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_set_prismhdr(struct net_device *ndev, struct iw_request_info *info,
-		     __u32 * uwrq, char *extra)
+		    union iwreq_data *wrqu, char *extra)
 {
+	__u32 * uwrq = &wrqu->mode;
 	islpci_private *priv = netdev_priv(ndev);
 	priv->monitor_type =
 	    (*uwrq ? ARPHRD_IEEE80211_PRISM : ARPHRD_IEEE80211);
@@ -2564,8 +2600,9 @@ prism54_set_prismhdr(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_get_prismhdr(struct net_device *ndev, struct iw_request_info *info,
-		     __u32 * uwrq, char *extra)
+		    union iwreq_data *wrqu, char *extra)
 {
+	__u32 * uwrq = &wrqu->mode;
 	islpci_private *priv = netdev_priv(ndev);
 	*uwrq = (priv->monitor_type == ARPHRD_IEEE80211_PRISM);
 	return 0;
@@ -2573,8 +2610,9 @@ prism54_get_prismhdr(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_debug_oid(struct net_device *ndev, struct iw_request_info *info,
-		  __u32 * uwrq, char *extra)
+		  union iwreq_data *wrqu, char *extra)
 {
+	__u32 * uwrq = &wrqu->mode;
 	islpci_private *priv = netdev_priv(ndev);
 
 	priv->priv_oid = *uwrq;
@@ -2585,8 +2623,9 @@ prism54_debug_oid(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_debug_get_oid(struct net_device *ndev, struct iw_request_info *info,
-		      struct iw_point *data, char *extra)
+		      union iwreq_data *wrqu, char *extra)
 {
+	struct iw_point *data = &wrqu->data;
 	islpci_private *priv = netdev_priv(ndev);
 	struct islpci_mgmtframe *response;
 	int ret = -EIO;
@@ -2621,8 +2660,9 @@ prism54_debug_get_oid(struct net_device *ndev, struct iw_request_info *info,
 
 static int
 prism54_debug_set_oid(struct net_device *ndev, struct iw_request_info *info,
-		      struct iw_point *data, char *extra)
+		      union iwreq_data *wrqu, char *extra)
 {
+	struct iw_point *data = &wrqu->data;
 	islpci_private *priv = netdev_priv(ndev);
 	struct islpci_mgmtframe *response;
 	int ret = 0, response_op = PIMFOR_OP_ERROR;
@@ -2682,60 +2722,60 @@ prism54_set_spy(struct net_device *ndev,
 }
 
 static const iw_handler prism54_handler[] = {
-	(iw_handler) prism54_commit,	/* SIOCSIWCOMMIT */
-	(iw_handler) prism54_get_name,	/* SIOCGIWNAME */
-	(iw_handler) NULL,	/* SIOCSIWNWID */
-	(iw_handler) NULL,	/* SIOCGIWNWID */
-	(iw_handler) prism54_set_freq,	/* SIOCSIWFREQ */
-	(iw_handler) prism54_get_freq,	/* SIOCGIWFREQ */
-	(iw_handler) prism54_set_mode,	/* SIOCSIWMODE */
-	(iw_handler) prism54_get_mode,	/* SIOCGIWMODE */
-	(iw_handler) prism54_set_sens,	/* SIOCSIWSENS */
-	(iw_handler) prism54_get_sens,	/* SIOCGIWSENS */
-	(iw_handler) NULL,	/* SIOCSIWRANGE */
-	(iw_handler) prism54_get_range,	/* SIOCGIWRANGE */
-	(iw_handler) NULL,	/* SIOCSIWPRIV */
-	(iw_handler) NULL,	/* SIOCGIWPRIV */
-	(iw_handler) NULL,	/* SIOCSIWSTATS */
-	(iw_handler) NULL,	/* SIOCGIWSTATS */
+	prism54_commit,	/* SIOCSIWCOMMIT */
+	prism54_get_name,	/* SIOCGIWNAME */
+	NULL,	/* SIOCSIWNWID */
+	NULL,	/* SIOCGIWNWID */
+	prism54_set_freq,	/* SIOCSIWFREQ */
+	prism54_get_freq,	/* SIOCGIWFREQ */
+	prism54_set_mode,	/* SIOCSIWMODE */
+	prism54_get_mode,	/* SIOCGIWMODE */
+	prism54_set_sens,	/* SIOCSIWSENS */
+	prism54_get_sens,	/* SIOCGIWSENS */
+	NULL,	/* SIOCSIWRANGE */
+	prism54_get_range,	/* SIOCGIWRANGE */
+	NULL,	/* SIOCSIWPRIV */
+	NULL,	/* SIOCGIWPRIV */
+	NULL,	/* SIOCSIWSTATS */
+	NULL,	/* SIOCGIWSTATS */
 	prism54_set_spy,	/* SIOCSIWSPY */
 	iw_handler_get_spy,	/* SIOCGIWSPY */
 	iw_handler_set_thrspy,	/* SIOCSIWTHRSPY */
 	iw_handler_get_thrspy,	/* SIOCGIWTHRSPY */
-	(iw_handler) prism54_set_wap,	/* SIOCSIWAP */
-	(iw_handler) prism54_get_wap,	/* SIOCGIWAP */
-	(iw_handler) NULL,	/* -- hole -- */
-	(iw_handler) NULL,	/* SIOCGIWAPLIST deprecated */
-	(iw_handler) prism54_set_scan,	/* SIOCSIWSCAN */
-	(iw_handler) prism54_get_scan,	/* SIOCGIWSCAN */
-	(iw_handler) prism54_set_essid,	/* SIOCSIWESSID */
-	(iw_handler) prism54_get_essid,	/* SIOCGIWESSID */
-	(iw_handler) prism54_set_nick,	/* SIOCSIWNICKN */
-	(iw_handler) prism54_get_nick,	/* SIOCGIWNICKN */
-	(iw_handler) NULL,	/* -- hole -- */
-	(iw_handler) NULL,	/* -- hole -- */
-	(iw_handler) prism54_set_rate,	/* SIOCSIWRATE */
-	(iw_handler) prism54_get_rate,	/* SIOCGIWRATE */
-	(iw_handler) prism54_set_rts,	/* SIOCSIWRTS */
-	(iw_handler) prism54_get_rts,	/* SIOCGIWRTS */
-	(iw_handler) prism54_set_frag,	/* SIOCSIWFRAG */
-	(iw_handler) prism54_get_frag,	/* SIOCGIWFRAG */
-	(iw_handler) prism54_set_txpower,	/* SIOCSIWTXPOW */
-	(iw_handler) prism54_get_txpower,	/* SIOCGIWTXPOW */
-	(iw_handler) prism54_set_retry,	/* SIOCSIWRETRY */
-	(iw_handler) prism54_get_retry,	/* SIOCGIWRETRY */
-	(iw_handler) prism54_set_encode,	/* SIOCSIWENCODE */
-	(iw_handler) prism54_get_encode,	/* SIOCGIWENCODE */
-	(iw_handler) NULL,	/* SIOCSIWPOWER */
-	(iw_handler) NULL,	/* SIOCGIWPOWER */
+	prism54_set_wap,	/* SIOCSIWAP */
+	prism54_get_wap,	/* SIOCGIWAP */
+	NULL,	/* -- hole -- */
+	NULL,	/* SIOCGIWAPLIST deprecated */
+	prism54_set_scan,	/* SIOCSIWSCAN */
+	prism54_get_scan,	/* SIOCGIWSCAN */
+	prism54_set_essid,	/* SIOCSIWESSID */
+	prism54_get_essid,	/* SIOCGIWESSID */
+	prism54_set_nick,	/* SIOCSIWNICKN */
+	prism54_get_nick,	/* SIOCGIWNICKN */
+	NULL,	/* -- hole -- */
+	NULL,	/* -- hole -- */
+	prism54_set_rate,	/* SIOCSIWRATE */
+	prism54_get_rate,	/* SIOCGIWRATE */
+	prism54_set_rts,	/* SIOCSIWRTS */
+	prism54_get_rts,	/* SIOCGIWRTS */
+	prism54_set_frag,	/* SIOCSIWFRAG */
+	prism54_get_frag,	/* SIOCGIWFRAG */
+	prism54_set_txpower,	/* SIOCSIWTXPOW */
+	prism54_get_txpower,	/* SIOCGIWTXPOW */
+	prism54_set_retry,	/* SIOCSIWRETRY */
+	prism54_get_retry,	/* SIOCGIWRETRY */
+	prism54_set_encode,	/* SIOCSIWENCODE */
+	prism54_get_encode,	/* SIOCGIWENCODE */
+	NULL,	/* SIOCSIWPOWER */
+	NULL,	/* SIOCGIWPOWER */
 	NULL,			/* -- hole -- */
 	NULL,			/* -- hole -- */
-	(iw_handler) prism54_set_genie,	/* SIOCSIWGENIE */
-	(iw_handler) prism54_get_genie,	/* SIOCGIWGENIE */
-	(iw_handler) prism54_set_auth,	/* SIOCSIWAUTH */
-	(iw_handler) prism54_get_auth,	/* SIOCGIWAUTH */
-	(iw_handler) prism54_set_encodeext, /* SIOCSIWENCODEEXT */
-	(iw_handler) prism54_get_encodeext, /* SIOCGIWENCODEEXT */
+	prism54_set_genie,	/* SIOCSIWGENIE */
+	prism54_get_genie,	/* SIOCGIWGENIE */
+	prism54_set_auth,	/* SIOCSIWAUTH */
+	prism54_get_auth,	/* SIOCGIWAUTH */
+	prism54_set_encodeext, /* SIOCSIWENCODEEXT */
+	prism54_get_encodeext, /* SIOCGIWENCODEEXT */
 	NULL,			/* SIOCSIWPMKSA */
 };
 
@@ -2872,31 +2912,31 @@ static const struct iw_priv_args prism54_private_args[] = {
 };
 
 static const iw_handler prism54_private_handler[] = {
-	(iw_handler) prism54_reset,
-	(iw_handler) prism54_get_policy,
-	(iw_handler) prism54_set_policy,
-	(iw_handler) prism54_get_mac,
-	(iw_handler) prism54_add_mac,
-	(iw_handler) NULL,
-	(iw_handler) prism54_del_mac,
-	(iw_handler) NULL,
-	(iw_handler) prism54_kick_mac,
-	(iw_handler) NULL,
-	(iw_handler) prism54_kick_all,
-	(iw_handler) prism54_get_wpa,
-	(iw_handler) prism54_set_wpa,
-	(iw_handler) NULL,
-	(iw_handler) prism54_debug_oid,
-	(iw_handler) prism54_debug_get_oid,
-	(iw_handler) prism54_debug_set_oid,
-	(iw_handler) prism54_get_oid,
-	(iw_handler) prism54_set_u32,
-	(iw_handler) NULL,
-	(iw_handler) prism54_set_raw,
-	(iw_handler) NULL,
-	(iw_handler) prism54_set_raw,
-	(iw_handler) prism54_get_prismhdr,
-	(iw_handler) prism54_set_prismhdr,
+	prism54_reset,
+	prism54_get_policy,
+	prism54_set_policy,
+	prism54_get_mac,
+	prism54_add_mac,
+	NULL,
+	prism54_del_mac,
+	NULL,
+	prism54_kick_mac,
+	NULL,
+	prism54_kick_all,
+	prism54_get_wpa,
+	prism54_set_wpa,
+	NULL,
+	prism54_debug_oid,
+	prism54_debug_get_oid,
+	prism54_debug_set_oid,
+	prism54_get_oid,
+	prism54_set_u32,
+	NULL,
+	prism54_set_raw,
+	NULL,
+	prism54_set_raw,
+	prism54_get_prismhdr,
+	prism54_set_prismhdr,
 };
 
 const struct iw_handler_def prism54_handler_def = {
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index e85e073..5242113 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -3218,20 +3218,20 @@ static int __init init_mac80211_hwsim(void)
 	if (channels < 1)
 		return -EINVAL;
 
-	mac80211_hwsim_mchan_ops = mac80211_hwsim_ops;
-	mac80211_hwsim_mchan_ops.hw_scan = mac80211_hwsim_hw_scan;
-	mac80211_hwsim_mchan_ops.cancel_hw_scan = mac80211_hwsim_cancel_hw_scan;
-	mac80211_hwsim_mchan_ops.sw_scan_start = NULL;
-	mac80211_hwsim_mchan_ops.sw_scan_complete = NULL;
-	mac80211_hwsim_mchan_ops.remain_on_channel = mac80211_hwsim_roc;
-	mac80211_hwsim_mchan_ops.cancel_remain_on_channel = mac80211_hwsim_croc;
-	mac80211_hwsim_mchan_ops.add_chanctx = mac80211_hwsim_add_chanctx;
-	mac80211_hwsim_mchan_ops.remove_chanctx = mac80211_hwsim_remove_chanctx;
-	mac80211_hwsim_mchan_ops.change_chanctx = mac80211_hwsim_change_chanctx;
-	mac80211_hwsim_mchan_ops.assign_vif_chanctx =
-		mac80211_hwsim_assign_vif_chanctx;
-	mac80211_hwsim_mchan_ops.unassign_vif_chanctx =
-		mac80211_hwsim_unassign_vif_chanctx;
+	pax_open_kernel();
+	memcpy((void *)&mac80211_hwsim_mchan_ops, &mac80211_hwsim_ops, sizeof mac80211_hwsim_mchan_ops);
+	const_cast(mac80211_hwsim_mchan_ops.hw_scan) = mac80211_hwsim_hw_scan;
+	const_cast(mac80211_hwsim_mchan_ops.cancel_hw_scan) = mac80211_hwsim_cancel_hw_scan;
+	const_cast(mac80211_hwsim_mchan_ops.sw_scan_start) = NULL;
+	const_cast(mac80211_hwsim_mchan_ops.sw_scan_complete) = NULL;
+	const_cast(mac80211_hwsim_mchan_ops.remain_on_channel) = mac80211_hwsim_roc;
+	const_cast(mac80211_hwsim_mchan_ops.cancel_remain_on_channel) = mac80211_hwsim_croc;
+	const_cast(mac80211_hwsim_mchan_ops.add_chanctx) = mac80211_hwsim_add_chanctx;
+	const_cast(mac80211_hwsim_mchan_ops.remove_chanctx) = mac80211_hwsim_remove_chanctx;
+	const_cast(mac80211_hwsim_mchan_ops.change_chanctx) = mac80211_hwsim_change_chanctx;
+	const_cast(mac80211_hwsim_mchan_ops.assign_vif_chanctx) = mac80211_hwsim_assign_vif_chanctx;
+	const_cast(mac80211_hwsim_mchan_ops.unassign_vif_chanctx) = mac80211_hwsim_unassign_vif_chanctx;
+	pax_close_kernel();
 
 	spin_lock_init(&hwsim_radio_lock);
 	INIT_LIST_HEAD(&hwsim_radios);
diff --git a/drivers/net/wireless/marvell/mwifiex/11n_aggr.c b/drivers/net/wireless/marvell/mwifiex/11n_aggr.c
index 1efef3b..dc49c3d 100644
--- a/drivers/net/wireless/marvell/mwifiex/11n_aggr.c
+++ b/drivers/net/wireless/marvell/mwifiex/11n_aggr.c
@@ -184,7 +184,7 @@ mwifiex_11n_aggregate_pkt(struct mwifiex_private *priv,
 
 	tx_info_src = MWIFIEX_SKB_TXCB(skb_src);
 	skb_aggr = mwifiex_alloc_dma_align_buf(adapter->tx_buf_size,
-					       GFP_ATOMIC | GFP_DMA);
+					       GFP_ATOMIC);
 	if (!skb_aggr) {
 		spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock,
 				       ra_list_flags);
diff --git a/drivers/net/wireless/marvell/mwifiex/main.c b/drivers/net/wireless/marvell/mwifiex/main.c
index 3cfa946..101832c 100644
--- a/drivers/net/wireless/marvell/mwifiex/main.c
+++ b/drivers/net/wireless/marvell/mwifiex/main.c
@@ -808,7 +808,7 @@ mwifiex_clone_skb_for_tx_status(struct mwifiex_private *priv,
 /*
  * CFG802.11 network device handler for data transmission.
  */
-static int
+static netdev_tx_t
 mwifiex_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
diff --git a/drivers/net/wireless/marvell/mwifiex/pcie.c b/drivers/net/wireless/marvell/mwifiex/pcie.c
index de36438..ac74367 100644
--- a/drivers/net/wireless/marvell/mwifiex/pcie.c
+++ b/drivers/net/wireless/marvell/mwifiex/pcie.c
@@ -503,7 +503,7 @@ static int mwifiex_init_rxq_ring(struct mwifiex_adapter *adapter)
 	for (i = 0; i < MWIFIEX_MAX_TXRX_BD; i++) {
 		/* Allocate skb here so that firmware can DMA data from it */
 		skb = mwifiex_alloc_dma_align_buf(MWIFIEX_RX_DATA_BUF_SIZE,
-						  GFP_KERNEL | GFP_DMA);
+						  GFP_KERNEL);
 		if (!skb) {
 			mwifiex_dbg(adapter, ERROR,
 				    "Unable to allocate skb for RX ring.\n");
@@ -1315,7 +1315,7 @@ static int mwifiex_pcie_process_recv_data(struct mwifiex_adapter *adapter)
 		}
 
 		skb_tmp = mwifiex_alloc_dma_align_buf(MWIFIEX_RX_DATA_BUF_SIZE,
-						      GFP_KERNEL | GFP_DMA);
+						      GFP_KERNEL);
 		if (!skb_tmp) {
 			mwifiex_dbg(adapter, ERROR,
 				    "Unable to allocate skb.\n");
diff --git a/drivers/net/wireless/marvell/mwifiex/sdio.c b/drivers/net/wireless/marvell/mwifiex/sdio.c
index b2c839a..5647267 100644
--- a/drivers/net/wireless/marvell/mwifiex/sdio.c
+++ b/drivers/net/wireless/marvell/mwifiex/sdio.c
@@ -1123,8 +1123,7 @@ static void mwifiex_deaggr_sdio_pkt(struct mwifiex_adapter *adapter,
 				    __func__, pkt_len, blk_size);
 			break;
 		}
-		skb_deaggr = mwifiex_alloc_dma_align_buf(pkt_len,
-							 GFP_KERNEL | GFP_DMA);
+		skb_deaggr = mwifiex_alloc_dma_align_buf(pkt_len, GFP_KERNEL);
 		if (!skb_deaggr)
 			break;
 		skb_put(skb_deaggr, pkt_len);
@@ -1373,8 +1372,7 @@ static int mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter *adapter,
 
 			/* copy pkt to deaggr buf */
 			skb_deaggr = mwifiex_alloc_dma_align_buf(len_arr[pind],
-								 GFP_KERNEL |
-								 GFP_DMA);
+								 GFP_KERNEL);
 			if (!skb_deaggr) {
 				mwifiex_dbg(adapter, ERROR, "skb allocation failure\t"
 					    "drop pkt len=%d type=%d\n",
@@ -1416,7 +1414,7 @@ rx_curr_single:
 		mwifiex_dbg(adapter, INFO, "info: RX: port: %d, rx_len: %d\n",
 			    port, rx_len);
 
-		skb = mwifiex_alloc_dma_align_buf(rx_len, GFP_KERNEL | GFP_DMA);
+		skb = mwifiex_alloc_dma_align_buf(rx_len, GFP_KERNEL);
 		if (!skb) {
 			mwifiex_dbg(adapter, ERROR,
 				    "single skb allocated fail,\t"
@@ -1521,7 +1519,7 @@ static int mwifiex_process_int_status(struct mwifiex_adapter *adapter)
 		rx_len = (u16) (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE);
 		mwifiex_dbg(adapter, INFO, "info: rx_len = %d\n", rx_len);
 
-		skb = mwifiex_alloc_dma_align_buf(rx_len, GFP_KERNEL | GFP_DMA);
+		skb = mwifiex_alloc_dma_align_buf(rx_len, GFP_KERNEL);
 		if (!skb)
 			return -1;
 
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2400pci.c b/drivers/net/wireless/ralink/rt2x00/rt2400pci.c
index 155f343..5db43e7 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2400pci.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2400pci.c
@@ -54,7 +54,7 @@
 	rt2x00mmio_regbusy_read((__dev), RFCSR, RFCSR_BUSY, (__reg))
 
 static void rt2400pci_bbp_write(struct rt2x00_dev *rt2x00dev,
-				const unsigned int word, const u8 value)
+				const unsigned int word, u8 value)
 {
 	u32 reg;
 
@@ -109,7 +109,7 @@ static void rt2400pci_bbp_read(struct rt2x00_dev *rt2x00dev,
 }
 
 static void rt2400pci_rf_write(struct rt2x00_dev *rt2x00dev,
-			       const unsigned int word, const u32 value)
+			       const unsigned int word, u32 value)
 {
 	u32 reg;
 
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2500pci.c b/drivers/net/wireless/ralink/rt2x00/rt2500pci.c
index 2553cdd..6a60ef9 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2500pci.c
@@ -54,7 +54,7 @@
 	rt2x00mmio_regbusy_read((__dev), RFCSR, RFCSR_BUSY, (__reg))
 
 static void rt2500pci_bbp_write(struct rt2x00_dev *rt2x00dev,
-				const unsigned int word, const u8 value)
+				const unsigned int word, u8 value)
 {
 	u32 reg;
 
@@ -109,7 +109,7 @@ static void rt2500pci_bbp_read(struct rt2x00_dev *rt2x00dev,
 }
 
 static void rt2500pci_rf_write(struct rt2x00_dev *rt2x00dev,
-			       const unsigned int word, const u32 value)
+			       const unsigned int word, u32 value)
 {
 	u32 reg;
 
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2500usb.c b/drivers/net/wireless/ralink/rt2x00/rt2500usb.c
index 2d64611..66754f4 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2500usb.c
@@ -142,7 +142,7 @@ static int rt2500usb_regbusy_read(struct rt2x00_dev *rt2x00dev,
 	rt2500usb_regbusy_read((__dev), PHY_CSR10, PHY_CSR10_RF_BUSY, (__reg))
 
 static void rt2500usb_bbp_write(struct rt2x00_dev *rt2x00dev,
-				const unsigned int word, const u8 value)
+				const unsigned int word, u8 value)
 {
 	u16 reg;
 
@@ -196,7 +196,7 @@ static void rt2500usb_bbp_read(struct rt2x00_dev *rt2x00dev,
 }
 
 static void rt2500usb_rf_write(struct rt2x00_dev *rt2x00dev,
-			       const unsigned int word, const u32 value)
+			       const unsigned int word, u32 value)
 {
 	u16 reg;
 
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
index 7fa0128..8b7e948 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
@@ -83,7 +83,7 @@ static inline bool rt2800_is_305x_soc(struct rt2x00_dev *rt2x00dev)
 }
 
 static void rt2800_bbp_write(struct rt2x00_dev *rt2x00dev,
-			     const unsigned int word, const u8 value)
+			     const unsigned int word, u8 value)
 {
 	u32 reg;
 
@@ -140,7 +140,7 @@ static void rt2800_bbp_read(struct rt2x00_dev *rt2x00dev,
 }
 
 static void rt2800_rfcsr_write(struct rt2x00_dev *rt2x00dev,
-			       const unsigned int word, const u8 value)
+			       const unsigned int word, u8 value)
 {
 	u32 reg;
 
@@ -195,7 +195,7 @@ static void rt2800_rfcsr_read(struct rt2x00_dev *rt2x00dev,
 }
 
 static void rt2800_rf_write(struct rt2x00_dev *rt2x00dev,
-			    const unsigned int word, const u32 value)
+			    const unsigned int word, u32 value)
 {
 	u32 reg;
 
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00.h b/drivers/net/wireless/ralink/rt2x00/rt2x00.h
index 6418620..31729cf 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00.h
@@ -377,7 +377,7 @@ struct rt2x00_intf {
 	 * for hardware which doesn't support hardware
 	 * sequence counting.
 	 */
-	atomic_t seqno;
+	atomic_unchecked_t seqno;
 };
 
 static inline struct rt2x00_intf* vif_to_intf(struct ieee80211_vif *vif)
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c b/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
index 68b620b..92ecd9e 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
@@ -224,9 +224,9 @@ static void rt2x00queue_create_tx_descriptor_seq(struct rt2x00_dev *rt2x00dev,
 	 * sequence counter given by mac80211.
 	 */
 	if (test_bit(ENTRY_TXD_FIRST_FRAGMENT, &txdesc->flags))
-		seqno = atomic_add_return(0x10, &intf->seqno);
+		seqno = atomic_add_return_unchecked(0x10, &intf->seqno);
 	else
-		seqno = atomic_read(&intf->seqno);
+		seqno = atomic_read_unchecked(&intf->seqno);
 
 	hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
 	hdr->seq_ctrl |= cpu_to_le16(seqno);
diff --git a/drivers/net/wireless/ralink/rt2x00/rt61pci.c b/drivers/net/wireless/ralink/rt2x00/rt61pci.c
index 24a3436..b74d6b7 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt61pci.c
@@ -63,7 +63,7 @@ MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
 				H2M_MAILBOX_CSR_OWNER, (__reg))
 
 static void rt61pci_bbp_write(struct rt2x00_dev *rt2x00dev,
-			      const unsigned int word, const u8 value)
+			      const unsigned int word, u8 value)
 {
 	u32 reg;
 
@@ -118,7 +118,7 @@ static void rt61pci_bbp_read(struct rt2x00_dev *rt2x00dev,
 }
 
 static void rt61pci_rf_write(struct rt2x00_dev *rt2x00dev,
-			     const unsigned int word, const u32 value)
+			     const unsigned int word, u32 value)
 {
 	u32 reg;
 
diff --git a/drivers/net/wireless/ralink/rt2x00/rt73usb.c b/drivers/net/wireless/ralink/rt2x00/rt73usb.c
index 7bbc869..d69e243 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt73usb.c
@@ -61,7 +61,7 @@ MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
 	rt2x00usb_regbusy_read((__dev), PHY_CSR4, PHY_CSR4_BUSY, (__reg))
 
 static void rt73usb_bbp_write(struct rt2x00_dev *rt2x00dev,
-			      const unsigned int word, const u8 value)
+			      const unsigned int word, u8 value)
 {
 	u32 reg;
 
@@ -116,7 +116,7 @@ static void rt73usb_bbp_read(struct rt2x00_dev *rt2x00dev,
 }
 
 static void rt73usb_rf_write(struct rt2x00_dev *rt2x00dev,
-			     const unsigned int word, const u32 value)
+			     const unsigned int word, u32 value)
 {
 	u32 reg;
 
diff --git a/drivers/net/wireless/realtek/rtlwifi/base.c b/drivers/net/wireless/realtek/rtlwifi/base.c
index 7a40d8d..09b0e06 100644
--- a/drivers/net/wireless/realtek/rtlwifi/base.c
+++ b/drivers/net/wireless/realtek/rtlwifi/base.c
@@ -467,15 +467,15 @@ static void _rtl_init_deferred_work(struct ieee80211_hw *hw)
 	rtlpriv->works.hw = hw;
 	rtlpriv->works.rtl_wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name);
 	INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
-			  (void *)rtl_watchdog_wq_callback);
+			  rtl_watchdog_wq_callback);
 	INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,
-			  (void *)rtl_ips_nic_off_wq_callback);
+			  rtl_ips_nic_off_wq_callback);
 	INIT_DELAYED_WORK(&rtlpriv->works.ps_work,
-			  (void *)rtl_swlps_wq_callback);
+			  rtl_swlps_wq_callback);
 	INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq,
-			  (void *)rtl_swlps_rfon_wq_callback);
+			  rtl_swlps_rfon_wq_callback);
 	INIT_DELAYED_WORK(&rtlpriv->works.fwevt_wq,
-			  (void *)rtl_fwevt_wq_callback);
+			  rtl_fwevt_wq_callback);
 
 }
 
@@ -1559,7 +1559,7 @@ void rtl_beacon_statistic(struct ieee80211_hw *hw, struct sk_buff *skb)
 }
 EXPORT_SYMBOL_GPL(rtl_beacon_statistic);
 
-void rtl_watchdog_wq_callback(void *data)
+void rtl_watchdog_wq_callback(struct work_struct *data)
 {
 	struct rtl_works *rtlworks = container_of_dwork_rtl(data,
 							    struct rtl_works,
@@ -1722,7 +1722,7 @@ void rtl_watch_dog_timer_callback(unsigned long data)
 	mod_timer(&rtlpriv->works.watchdog_timer,
 		  jiffies + MSECS(RTL_WATCH_DOG_TIME));
 }
-void rtl_fwevt_wq_callback(void *data)
+void rtl_fwevt_wq_callback(struct work_struct *data)
 {
 	struct rtl_works *rtlworks =
 		container_of_dwork_rtl(data, struct rtl_works, fwevt_wq);
diff --git a/drivers/net/wireless/realtek/rtlwifi/base.h b/drivers/net/wireless/realtek/rtlwifi/base.h
index 74233d6..482e495 100644
--- a/drivers/net/wireless/realtek/rtlwifi/base.h
+++ b/drivers/net/wireless/realtek/rtlwifi/base.h
@@ -134,8 +134,8 @@ int rtl_rx_agg_start(struct ieee80211_hw *hw,
 		     struct ieee80211_sta *sta, u16 tid);
 int rtl_rx_agg_stop(struct ieee80211_hw *hw,
 		    struct ieee80211_sta *sta, u16 tid);
-void rtl_watchdog_wq_callback(void *data);
-void rtl_fwevt_wq_callback(void *data);
+void rtl_watchdog_wq_callback(struct work_struct *data);
+void rtl_fwevt_wq_callback(struct work_struct *data);
 
 void rtl_get_tcb_desc(struct ieee80211_hw *hw,
 		      struct ieee80211_tx_info *info,
diff --git a/drivers/net/wireless/realtek/rtlwifi/pci.c b/drivers/net/wireless/realtek/rtlwifi/pci.c
index e5037d1..ce357fe 100644
--- a/drivers/net/wireless/realtek/rtlwifi/pci.c
+++ b/drivers/net/wireless/realtek/rtlwifi/pci.c
@@ -1100,13 +1100,16 @@ done:
 	return ret;
 }
 
-static void _rtl_pci_irq_tasklet(struct ieee80211_hw *hw)
+static void _rtl_pci_irq_tasklet(unsigned long _hw)
 {
+	struct ieee80211_hw *hw = (struct ieee80211_hw *)_hw;
+
 	_rtl_pci_tx_chk_waitq(hw);
 }
 
-static void _rtl_pci_prepare_bcn_tasklet(struct ieee80211_hw *hw)
+static void _rtl_pci_prepare_bcn_tasklet(unsigned long _hw)
 {
+	struct ieee80211_hw *hw = (struct ieee80211_hw *)_hw;
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
@@ -1226,12 +1229,8 @@ static void _rtl_pci_init_struct(struct ieee80211_hw *hw,
 	rtlpci->acm_method = EACMWAY2_SW;
 
 	/*task */
-	tasklet_init(&rtlpriv->works.irq_tasklet,
-		     (void (*)(unsigned long))_rtl_pci_irq_tasklet,
-		     (unsigned long)hw);
-	tasklet_init(&rtlpriv->works.irq_prepare_bcn_tasklet,
-		     (void (*)(unsigned long))_rtl_pci_prepare_bcn_tasklet,
-		     (unsigned long)hw);
+	tasklet_init(&rtlpriv->works.irq_tasklet, _rtl_pci_irq_tasklet, (unsigned long)hw);
+	tasklet_init(&rtlpriv->works.irq_prepare_bcn_tasklet, _rtl_pci_prepare_bcn_tasklet, (unsigned long)hw);
 	INIT_WORK(&rtlpriv->works.lps_change_work,
 		  rtl_lps_change_work_callback);
 }
diff --git a/drivers/net/wireless/realtek/rtlwifi/ps.c b/drivers/net/wireless/realtek/rtlwifi/ps.c
index b69321d..ee3a01c 100644
--- a/drivers/net/wireless/realtek/rtlwifi/ps.c
+++ b/drivers/net/wireless/realtek/rtlwifi/ps.c
@@ -205,7 +205,7 @@ static void _rtl_ps_inactive_ps(struct ieee80211_hw *hw)
 	ppsc->swrf_processing = false;
 }
 
-void rtl_ips_nic_off_wq_callback(void *data)
+void rtl_ips_nic_off_wq_callback(struct work_struct *data)
 {
 	struct rtl_works *rtlworks =
 	    container_of_dwork_rtl(data, struct rtl_works, ips_nic_off_wq);
@@ -595,7 +595,7 @@ void rtl_swlps_rf_awake(struct ieee80211_hw *hw)
 	spin_unlock_irqrestore(&rtlpriv->locks.lps_lock, flag);
 }
 
-void rtl_swlps_rfon_wq_callback(void *data)
+void rtl_swlps_rfon_wq_callback(struct work_struct *data)
 {
 	struct rtl_works *rtlworks =
 	    container_of_dwork_rtl(data, struct rtl_works, ps_rfon_wq);
@@ -687,7 +687,7 @@ void rtl_lps_change_work_callback(struct work_struct *work)
 }
 EXPORT_SYMBOL_GPL(rtl_lps_change_work_callback);
 
-void rtl_swlps_wq_callback(void *data)
+void rtl_swlps_wq_callback(struct work_struct *data)
 {
 	struct rtl_works *rtlworks = container_of_dwork_rtl(data,
 				     struct rtl_works,
diff --git a/drivers/net/wireless/realtek/rtlwifi/ps.h b/drivers/net/wireless/realtek/rtlwifi/ps.h
index 29dfc51..8297755 100644
--- a/drivers/net/wireless/realtek/rtlwifi/ps.h
+++ b/drivers/net/wireless/realtek/rtlwifi/ps.h
@@ -35,15 +35,15 @@ bool rtl_ps_enable_nic(struct ieee80211_hw *hw);
 bool rtl_ps_disable_nic(struct ieee80211_hw *hw);
 void rtl_ips_nic_off(struct ieee80211_hw *hw);
 void rtl_ips_nic_on(struct ieee80211_hw *hw);
-void rtl_ips_nic_off_wq_callback(void *data);
+void rtl_ips_nic_off_wq_callback(struct work_struct *data);
 void rtl_lps_enter(struct ieee80211_hw *hw);
 void rtl_lps_leave(struct ieee80211_hw *hw);
 
 void rtl_lps_set_psmode(struct ieee80211_hw *hw, u8 rt_psmode);
 
 void rtl_swlps_beacon(struct ieee80211_hw *hw, void *data, unsigned int len);
-void rtl_swlps_wq_callback(void *data);
-void rtl_swlps_rfon_wq_callback(void *data);
+void rtl_swlps_wq_callback(struct work_struct *data);
+void rtl_swlps_rfon_wq_callback(struct work_struct *data);
 void rtl_swlps_rf_awake(struct ieee80211_hw *hw);
 void rtl_swlps_rf_sleep(struct ieee80211_hw *hw);
 void rtl_p2p_ps_cmd(struct ieee80211_hw *hw , u8 p2p_ps_state);
diff --git a/drivers/net/wireless/ti/wl1251/sdio.c b/drivers/net/wireless/ti/wl1251/sdio.c
index b661f896..ebea675 100644
--- a/drivers/net/wireless/ti/wl1251/sdio.c
+++ b/drivers/net/wireless/ti/wl1251/sdio.c
@@ -282,13 +282,17 @@ static int wl1251_sdio_probe(struct sdio_func *func,
 
 		irq_set_irq_type(wl->irq, IRQ_TYPE_EDGE_RISING);
 
-		wl1251_sdio_ops.enable_irq = wl1251_enable_line_irq;
-		wl1251_sdio_ops.disable_irq = wl1251_disable_line_irq;
+		pax_open_kernel();
+		const_cast(wl1251_sdio_ops.enable_irq) = wl1251_enable_line_irq;
+		const_cast(wl1251_sdio_ops.disable_irq) = wl1251_disable_line_irq;
+		pax_close_kernel();
 
 		wl1251_info("using dedicated interrupt line");
 	} else {
-		wl1251_sdio_ops.enable_irq = wl1251_sdio_enable_irq;
-		wl1251_sdio_ops.disable_irq = wl1251_sdio_disable_irq;
+		pax_open_kernel();
+		const_cast(wl1251_sdio_ops.enable_irq) = wl1251_sdio_enable_irq;
+		const_cast(wl1251_sdio_ops.disable_irq) = wl1251_sdio_disable_irq;
+		pax_close_kernel();
 
 		wl1251_info("using SDIO interrupt");
 	}
diff --git a/drivers/net/wireless/ti/wl12xx/main.c b/drivers/net/wireless/ti/wl12xx/main.c
index a0d6ccc..36e1ae3 100644
--- a/drivers/net/wireless/ti/wl12xx/main.c
+++ b/drivers/net/wireless/ti/wl12xx/main.c
@@ -656,7 +656,9 @@ static int wl12xx_identify_chip(struct wl1271 *wl)
 		       sizeof(wl->conf.mem));
 
 		/* read data preparation is only needed by wl127x */
-		wl->ops->prepare_read = wl127x_prepare_read;
+		pax_open_kernel();
+		const_cast(wl->ops->prepare_read) = wl127x_prepare_read;
+		pax_close_kernel();
 
 		wlcore_set_min_fw_ver(wl, WL127X_CHIP_VER,
 			      WL127X_IFTYPE_SR_VER,  WL127X_MAJOR_SR_VER,
@@ -681,7 +683,9 @@ static int wl12xx_identify_chip(struct wl1271 *wl)
 		       sizeof(wl->conf.mem));
 
 		/* read data preparation is only needed by wl127x */
-		wl->ops->prepare_read = wl127x_prepare_read;
+		pax_open_kernel();
+		const_cast(wl->ops->prepare_read) = wl127x_prepare_read;
+		pax_close_kernel();
 
 		wlcore_set_min_fw_ver(wl, WL127X_CHIP_VER,
 			      WL127X_IFTYPE_SR_VER,  WL127X_MAJOR_SR_VER,
diff --git a/drivers/net/wireless/ti/wl18xx/main.c b/drivers/net/wireless/ti/wl18xx/main.c
index 1bf26cc..7dd1267 100644
--- a/drivers/net/wireless/ti/wl18xx/main.c
+++ b/drivers/net/wireless/ti/wl18xx/main.c
@@ -2018,8 +2018,10 @@ static int wl18xx_setup(struct wl1271 *wl)
 	}
 
 	if (!checksum_param) {
-		wl18xx_ops.set_rx_csum = NULL;
-		wl18xx_ops.init_vif = NULL;
+		pax_open_kernel();
+		const_cast(wl18xx_ops.set_rx_csum) = NULL;
+		const_cast(wl18xx_ops.init_vif) = NULL;
+		pax_close_kernel();
 	}
 
 	/* Enable 11a Band only if we have 5G antennas */
diff --git a/drivers/net/wireless/zydas/zd1201.c b/drivers/net/wireless/zydas/zd1201.c
index 6f5c793..42f0dde 100644
--- a/drivers/net/wireless/zydas/zd1201.c
+++ b/drivers/net/wireless/zydas/zd1201.c
@@ -891,7 +891,7 @@ static void zd1201_set_multicast(struct net_device *dev)
 }
 
 static int zd1201_config_commit(struct net_device *dev, 
-    struct iw_request_info *info, struct iw_point *data, char *essid)
+    struct iw_request_info *info, union iwreq_data *data, char *essid)
 {
 	struct zd1201 *zd = netdev_priv(dev);
 
@@ -899,15 +899,18 @@ static int zd1201_config_commit(struct net_device *dev,
 }
 
 static int zd1201_get_name(struct net_device *dev,
-    struct iw_request_info *info, char *name, char *extra)
+    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
 {
+	char *name = wrqu->name;
+
 	strcpy(name, "IEEE 802.11b");
 	return 0;
 }
 
 static int zd1201_set_freq(struct net_device *dev,
-    struct iw_request_info *info, struct iw_freq *freq, char *extra)
+    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
 {
+	struct iw_freq *freq = &wrqu->freq;
 	struct zd1201 *zd = netdev_priv(dev);
 	short channel = 0;
 	int err;
@@ -927,8 +930,9 @@ static int zd1201_set_freq(struct net_device *dev,
 }
 
 static int zd1201_get_freq(struct net_device *dev,
-    struct iw_request_info *info, struct iw_freq *freq, char *extra)
+    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
 {
+	struct iw_freq *freq = &wrqu->freq;
 	struct zd1201 *zd = netdev_priv(dev);
 	short channel;
 	int err;
@@ -943,8 +947,9 @@ static int zd1201_get_freq(struct net_device *dev,
 }
 
 static int zd1201_set_mode(struct net_device *dev,
-    struct iw_request_info *info, __u32 *mode, char *extra)
+    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
 {
+	__u32 *mode = &wrqu->mode;
 	struct zd1201 *zd = netdev_priv(dev);
 	short porttype, monitor = 0;
 	unsigned char buffer[IW_ESSID_MAX_SIZE+2];
@@ -1005,8 +1010,9 @@ static int zd1201_set_mode(struct net_device *dev,
 }
 
 static int zd1201_get_mode(struct net_device *dev,
-    struct iw_request_info *info, __u32 *mode, char *extra)
+    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
 {
+	__u32 *mode = &wrqu->mode;
 	struct zd1201 *zd = netdev_priv(dev);
 	short porttype;
 	int err;
@@ -1042,8 +1048,9 @@ static int zd1201_get_mode(struct net_device *dev,
 }
 
 static int zd1201_get_range(struct net_device *dev,
-    struct iw_request_info *info, struct iw_point *wrq, char *extra)
+    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
 {
+	struct iw_point *wrq = &wrqu->data;
 	struct iw_range *range = (struct iw_range *)extra;
 
 	wrq->length = sizeof(struct iw_range);
@@ -1081,8 +1088,9 @@ static int zd1201_get_range(struct net_device *dev,
  *	the stats after asking the bssid.
  */
 static int zd1201_get_wap(struct net_device *dev,
-    struct iw_request_info *info, struct sockaddr *ap_addr, char *extra)
+    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
 {
+	struct sockaddr *ap_addr = &wrqu->ap_addr;
 	struct zd1201 *zd = netdev_priv(dev);
 	unsigned char buffer[6];
 
@@ -1102,15 +1110,16 @@ static int zd1201_get_wap(struct net_device *dev,
 }
 
 static int zd1201_set_scan(struct net_device *dev,
-    struct iw_request_info *info, struct iw_point *srq, char *extra)
+    struct iw_request_info *info, union iwreq_data *srq, char *extra)
 {
 	/* We do everything in get_scan */
 	return 0;
 }
 
 static int zd1201_get_scan(struct net_device *dev,
-    struct iw_request_info *info, struct iw_point *srq, char *extra)
+    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
 {
+	struct iw_point *srq = &wrqu->data;
 	struct zd1201 *zd = netdev_priv(dev);
 	int err, i, j, enabled_save;
 	struct iw_event iwe;
@@ -1201,8 +1210,9 @@ static int zd1201_get_scan(struct net_device *dev,
 }
 
 static int zd1201_set_essid(struct net_device *dev,
-    struct iw_request_info *info, struct iw_point *data, char *essid)
+    struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
 {
+	struct iw_point *data = &wrqu->essid;
 	struct zd1201 *zd = netdev_priv(dev);
 
 	if (data->length > IW_ESSID_MAX_SIZE)
@@ -1216,8 +1226,9 @@ static int zd1201_set_essid(struct net_device *dev,
 }
 
 static int zd1201_get_essid(struct net_device *dev,
-    struct iw_request_info *info, struct iw_point *data, char *essid)
+    struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
 {
+	struct iw_point *data = &wrqu->essid;
 	struct zd1201 *zd = netdev_priv(dev);
 
 	memcpy(essid, zd->essid, zd->essidlen);
@@ -1228,8 +1239,10 @@ static int zd1201_get_essid(struct net_device *dev,
 }
 
 static int zd1201_get_nick(struct net_device *dev, struct iw_request_info *info,
-    struct iw_point *data, char *nick)
+    union iwreq_data *wrqu, char *nick)
 {
+	struct iw_point *data = &wrqu->data;
+
 	strcpy(nick, "zd1201");
 	data->flags = 1;
 	data->length = strlen(nick);
@@ -1237,8 +1250,9 @@ static int zd1201_get_nick(struct net_device *dev, struct iw_request_info *info,
 }
 
 static int zd1201_set_rate(struct net_device *dev,
-    struct iw_request_info *info, struct iw_param *rrq, char *extra)
+    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *rrq = &wrqu->bitrate;
 	struct zd1201 *zd = netdev_priv(dev);
 	short rate;
 	int err;
@@ -1270,8 +1284,9 @@ static int zd1201_set_rate(struct net_device *dev,
 }
 
 static int zd1201_get_rate(struct net_device *dev,
-    struct iw_request_info *info, struct iw_param *rrq, char *extra)
+    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *rrq = &wrqu->bitrate;
 	struct zd1201 *zd = netdev_priv(dev);
 	short rate;
 	int err;
@@ -1303,8 +1318,9 @@ static int zd1201_get_rate(struct net_device *dev,
 }
 
 static int zd1201_set_rts(struct net_device *dev, struct iw_request_info *info,
-    struct iw_param *rts, char *extra)
+    union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *rts = &wrqu->rts;
 	struct zd1201 *zd = netdev_priv(dev);
 	int err;
 	short val = rts->value;
@@ -1323,8 +1339,9 @@ static int zd1201_set_rts(struct net_device *dev, struct iw_request_info *info,
 }
 
 static int zd1201_get_rts(struct net_device *dev, struct iw_request_info *info,
-    struct iw_param *rts, char *extra)
+    union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *rts = &wrqu->rts;
 	struct zd1201 *zd = netdev_priv(dev);
 	short rtst;
 	int err;
@@ -1340,8 +1357,9 @@ static int zd1201_get_rts(struct net_device *dev, struct iw_request_info *info,
 }
 
 static int zd1201_set_frag(struct net_device *dev, struct iw_request_info *info,
-    struct iw_param *frag, char *extra)
+    union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *frag = &wrqu->frag;
 	struct zd1201 *zd = netdev_priv(dev);
 	int err;
 	short val = frag->value;
@@ -1361,8 +1379,9 @@ static int zd1201_set_frag(struct net_device *dev, struct iw_request_info *info,
 }
 
 static int zd1201_get_frag(struct net_device *dev, struct iw_request_info *info,
-    struct iw_param *frag, char *extra)
+    union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *frag = &wrqu->frag;
 	struct zd1201 *zd = netdev_priv(dev);
 	short fragt;
 	int err;
@@ -1378,20 +1397,21 @@ static int zd1201_get_frag(struct net_device *dev, struct iw_request_info *info,
 }
 
 static int zd1201_set_retry(struct net_device *dev,
-    struct iw_request_info *info, struct iw_param *rrq, char *extra)
+    struct iw_request_info *info, union iwreq_data *rrq, char *extra)
 {
 	return 0;
 }
 
 static int zd1201_get_retry(struct net_device *dev,
-    struct iw_request_info *info, struct iw_param *rrq, char *extra)
+    struct iw_request_info *info, union iwreq_data *rrq, char *extra)
 {
 	return 0;
 }
 
 static int zd1201_set_encode(struct net_device *dev,
-    struct iw_request_info *info, struct iw_point *erq, char *key)
+    struct iw_request_info *info, union iwreq_data *wrqu, char *key)
 {
+	struct iw_point *erq = &wrqu->encoding;
 	struct zd1201 *zd = netdev_priv(dev);
 	short i;
 	int err, rid;
@@ -1447,8 +1467,9 @@ static int zd1201_set_encode(struct net_device *dev,
 }
 
 static int zd1201_get_encode(struct net_device *dev,
-    struct iw_request_info *info, struct iw_point *erq, char *key)
+    struct iw_request_info *info, union iwreq_data *wrqu, char *key)
 {
+	struct iw_point *erq = &wrqu->encoding;
 	struct zd1201 *zd = netdev_priv(dev);
 	short i;
 	int err;
@@ -1480,8 +1501,9 @@ static int zd1201_get_encode(struct net_device *dev,
 }
 
 static int zd1201_set_power(struct net_device *dev, 
-    struct iw_request_info *info, struct iw_param *vwrq, char *extra)
+    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *vwrq = &wrqu->power;
 	struct zd1201 *zd = netdev_priv(dev);
 	short enabled, duration, level;
 	int err;
@@ -1519,8 +1541,9 @@ out:
 }
 
 static int zd1201_get_power(struct net_device *dev,
-    struct iw_request_info *info, struct iw_param *vwrq, char *extra)
+    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *vwrq = &wrqu->power;
 	struct zd1201 *zd = netdev_priv(dev);
 	short enabled, level, duration;
 	int err;
@@ -1557,57 +1580,58 @@ static int zd1201_get_power(struct net_device *dev,
 
 static const iw_handler zd1201_iw_handler[] =
 {
-	(iw_handler) zd1201_config_commit,	/* SIOCSIWCOMMIT */
-	(iw_handler) zd1201_get_name,    	/* SIOCGIWNAME */
-	(iw_handler) NULL,			/* SIOCSIWNWID */
-	(iw_handler) NULL,			/* SIOCGIWNWID */
-	(iw_handler) zd1201_set_freq,		/* SIOCSIWFREQ */
-	(iw_handler) zd1201_get_freq,		/* SIOCGIWFREQ */
-	(iw_handler) zd1201_set_mode,		/* SIOCSIWMODE */
-	(iw_handler) zd1201_get_mode,		/* SIOCGIWMODE */
-	(iw_handler) NULL,                  	/* SIOCSIWSENS */
-	(iw_handler) NULL,           		/* SIOCGIWSENS */
-	(iw_handler) NULL,			/* SIOCSIWRANGE */
-	(iw_handler) zd1201_get_range,           /* SIOCGIWRANGE */
-	(iw_handler) NULL,			/* SIOCSIWPRIV */
-	(iw_handler) NULL,			/* SIOCGIWPRIV */
-	(iw_handler) NULL,			/* SIOCSIWSTATS */
-	(iw_handler) NULL,			/* SIOCGIWSTATS */
-	(iw_handler) NULL,			/* SIOCSIWSPY */
-	(iw_handler) NULL,			/* SIOCGIWSPY */
-	(iw_handler) NULL,			/* -- hole -- */
-	(iw_handler) NULL,			/* -- hole -- */
-	(iw_handler) NULL/*zd1201_set_wap*/,		/* SIOCSIWAP */
-	(iw_handler) zd1201_get_wap,		/* SIOCGIWAP */
-	(iw_handler) NULL,			/* -- hole -- */
-	(iw_handler) NULL,       		/* SIOCGIWAPLIST */
-	(iw_handler) zd1201_set_scan,		/* SIOCSIWSCAN */
-	(iw_handler) zd1201_get_scan,		/* SIOCGIWSCAN */
-	(iw_handler) zd1201_set_essid,		/* SIOCSIWESSID */
-	(iw_handler) zd1201_get_essid,		/* SIOCGIWESSID */
-	(iw_handler) NULL,         		/* SIOCSIWNICKN */
-	(iw_handler) zd1201_get_nick, 		/* SIOCGIWNICKN */
-	(iw_handler) NULL,			/* -- hole -- */
-	(iw_handler) NULL,			/* -- hole -- */
-	(iw_handler) zd1201_set_rate,		/* SIOCSIWRATE */
-	(iw_handler) zd1201_get_rate,		/* SIOCGIWRATE */
-	(iw_handler) zd1201_set_rts,		/* SIOCSIWRTS */
-	(iw_handler) zd1201_get_rts,		/* SIOCGIWRTS */
-	(iw_handler) zd1201_set_frag,		/* SIOCSIWFRAG */
-	(iw_handler) zd1201_get_frag,		/* SIOCGIWFRAG */
-	(iw_handler) NULL,         		/* SIOCSIWTXPOW */
-	(iw_handler) NULL,          		/* SIOCGIWTXPOW */
-	(iw_handler) zd1201_set_retry,		/* SIOCSIWRETRY */
-	(iw_handler) zd1201_get_retry,		/* SIOCGIWRETRY */
-	(iw_handler) zd1201_set_encode,		/* SIOCSIWENCODE */
-	(iw_handler) zd1201_get_encode,		/* SIOCGIWENCODE */
-	(iw_handler) zd1201_set_power,		/* SIOCSIWPOWER */
-	(iw_handler) zd1201_get_power,		/* SIOCGIWPOWER */
+	zd1201_config_commit,	/* SIOCSIWCOMMIT */
+	zd1201_get_name,    	/* SIOCGIWNAME */
+	NULL,			/* SIOCSIWNWID */
+	NULL,			/* SIOCGIWNWID */
+	zd1201_set_freq,	/* SIOCSIWFREQ */
+	zd1201_get_freq,	/* SIOCGIWFREQ */
+	zd1201_set_mode,	/* SIOCSIWMODE */
+	zd1201_get_mode,	/* SIOCGIWMODE */
+	NULL,                  	/* SIOCSIWSENS */
+	NULL,           	/* SIOCGIWSENS */
+	NULL,			/* SIOCSIWRANGE */
+	zd1201_get_range,	/* SIOCGIWRANGE */
+	NULL,			/* SIOCSIWPRIV */
+	NULL,			/* SIOCGIWPRIV */
+	NULL,			/* SIOCSIWSTATS */
+	NULL,			/* SIOCGIWSTATS */
+	NULL,			/* SIOCSIWSPY */
+	NULL,			/* SIOCGIWSPY */
+	NULL,			/* -- hole -- */
+	NULL,			/* -- hole -- */
+	NULL/*zd1201_set_wap*/,	/* SIOCSIWAP */
+	zd1201_get_wap,		/* SIOCGIWAP */
+	NULL,			/* -- hole -- */
+	NULL,       		/* SIOCGIWAPLIST */
+	zd1201_set_scan,	/* SIOCSIWSCAN */
+	zd1201_get_scan,	/* SIOCGIWSCAN */
+	zd1201_set_essid,	/* SIOCSIWESSID */
+	zd1201_get_essid,	/* SIOCGIWESSID */
+	NULL,         		/* SIOCSIWNICKN */
+	zd1201_get_nick, 	/* SIOCGIWNICKN */
+	NULL,			/* -- hole -- */
+	NULL,			/* -- hole -- */
+	zd1201_set_rate,	/* SIOCSIWRATE */
+	zd1201_get_rate,	/* SIOCGIWRATE */
+	zd1201_set_rts,		/* SIOCSIWRTS */
+	zd1201_get_rts,		/* SIOCGIWRTS */
+	zd1201_set_frag,	/* SIOCSIWFRAG */
+	zd1201_get_frag,	/* SIOCGIWFRAG */
+	NULL,         		/* SIOCSIWTXPOW */
+	NULL,          		/* SIOCGIWTXPOW */
+	zd1201_set_retry,	/* SIOCSIWRETRY */
+	zd1201_get_retry,	/* SIOCGIWRETRY */
+	zd1201_set_encode,	/* SIOCSIWENCODE */
+	zd1201_get_encode,	/* SIOCGIWENCODE */
+	zd1201_set_power,	/* SIOCSIWPOWER */
+	zd1201_get_power,	/* SIOCGIWPOWER */
 };
 
 static int zd1201_set_hostauth(struct net_device *dev,
-    struct iw_request_info *info, struct iw_param *rrq, char *extra)
+    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *rrq = &wrqu->param;
 	struct zd1201 *zd = netdev_priv(dev);
 
 	if (!zd->ap)
@@ -1617,8 +1641,9 @@ static int zd1201_set_hostauth(struct net_device *dev,
 }
 
 static int zd1201_get_hostauth(struct net_device *dev,
-    struct iw_request_info *info, struct iw_param *rrq, char *extra)
+    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *rrq = &wrqu->param;
 	struct zd1201 *zd = netdev_priv(dev);
 	short hostauth;
 	int err;
@@ -1636,8 +1661,9 @@ static int zd1201_get_hostauth(struct net_device *dev,
 }
 
 static int zd1201_auth_sta(struct net_device *dev,
-    struct iw_request_info *info, struct sockaddr *sta, char *extra)
+    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
 {
+	struct sockaddr *sta = &wrqu->addr;
 	struct zd1201 *zd = netdev_priv(dev);
 	unsigned char buffer[10];
 
@@ -1652,8 +1678,9 @@ static int zd1201_auth_sta(struct net_device *dev,
 }
 
 static int zd1201_set_maxassoc(struct net_device *dev,
-    struct iw_request_info *info, struct iw_param *rrq, char *extra)
+    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *rrq = &wrqu->param;
 	struct zd1201 *zd = netdev_priv(dev);
 	int err;
 
@@ -1667,8 +1694,9 @@ static int zd1201_set_maxassoc(struct net_device *dev,
 }
 
 static int zd1201_get_maxassoc(struct net_device *dev,
-    struct iw_request_info *info, struct iw_param *rrq, char *extra)
+    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *rrq = &wrqu->param;
 	struct zd1201 *zd = netdev_priv(dev);
 	short maxassoc;
 	int err;
@@ -1686,12 +1714,12 @@ static int zd1201_get_maxassoc(struct net_device *dev,
 }
 
 static const iw_handler zd1201_private_handler[] = {
-	(iw_handler) zd1201_set_hostauth,	/* ZD1201SIWHOSTAUTH */
-	(iw_handler) zd1201_get_hostauth,	/* ZD1201GIWHOSTAUTH */
-	(iw_handler) zd1201_auth_sta,		/* ZD1201SIWAUTHSTA */
-	(iw_handler) NULL,			/* nothing to get */
-	(iw_handler) zd1201_set_maxassoc,	/* ZD1201SIMAXASSOC */
-	(iw_handler) zd1201_get_maxassoc,	/* ZD1201GIMAXASSOC */
+	zd1201_set_hostauth,	/* ZD1201SIWHOSTAUTH */
+	zd1201_get_hostauth,	/* ZD1201GIWHOSTAUTH */
+	zd1201_auth_sta,	/* ZD1201SIWAUTHSTA */
+	NULL,			/* nothing to get */
+	zd1201_set_maxassoc,	/* ZD1201SIMAXASSOC */
+	zd1201_get_maxassoc,	/* ZD1201GIMAXASSOC */
 };
 
 static const struct iw_priv_args zd1201_private_args[] = {
diff --git a/drivers/net/wireless/zydas/zd1211rw/zd_usb.c b/drivers/net/wireless/zydas/zd1211rw/zd_usb.c
index a912dc0..a8225ba 100644
--- a/drivers/net/wireless/zydas/zd1211rw/zd_usb.c
+++ b/drivers/net/wireless/zydas/zd1211rw/zd_usb.c
@@ -385,7 +385,7 @@ static inline void handle_regs_int(struct urb *urb)
 {
 	struct zd_usb *usb = urb->context;
 	struct zd_usb_interrupt *intr = &usb->intr;
-	int len;
+	unsigned int len;
 	u16 int_num;
 
 	ZD_ASSERT(in_interrupt());
diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c
index f5231a2..966574d 100644
--- a/drivers/net/xen-netback/interface.c
+++ b/drivers/net/xen-netback/interface.c
@@ -142,7 +142,7 @@ void xenvif_wake_queue(struct xenvif_queue *queue)
 	netif_tx_wake_queue(netdev_get_tx_queue(dev, id));
 }
 
-static int xenvif_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t xenvif_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct xenvif *vif = netdev_priv(dev);
 	struct xenvif_queue *queue = NULL;
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 96ccd4e..8e1c6b7 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -550,7 +550,7 @@ static u16 xennet_select_queue(struct net_device *dev, struct sk_buff *skb,
 
 #define MAX_XEN_SKB_FRAGS (65536 / XEN_PAGE_SIZE + 1)
 
-static int xennet_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t xennet_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct netfront_info *np = netdev_priv(dev);
 	struct netfront_stats *tx_stats = this_cpu_ptr(np->tx_stats);
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 4fd733f..9240d85 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -2126,7 +2126,7 @@ static int nvme_resume(struct device *dev)
 static SIMPLE_DEV_PM_OPS(nvme_dev_pm_ops, nvme_suspend, nvme_resume);
 
 static pci_ers_result_t nvme_error_detected(struct pci_dev *pdev,
-						pci_channel_state_t state)
+						enum pci_channel_state state)
 {
 	struct nvme_dev *dev = pci_get_drvdata(pdev);
 
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 3349d2a..226e4df 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -1179,7 +1179,9 @@ static int __init of_fdt_raw_init(void)
 		pr_warn("fdt: not creating '/sys/firmware/fdt': CRC check failed\n");
 		return 0;
 	}
-	of_fdt_raw_attr.size = fdt_totalsize(initial_boot_params);
+	pax_open_kernel();
+	const_cast(of_fdt_raw_attr.size) = fdt_totalsize(initial_boot_params);
+	pax_close_kernel();
 	return sysfs_create_bin_file(firmware_kobj, &of_fdt_raw_attr);
 }
 late_initcall(of_fdt_raw_init);
diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c
index 82f7000..d6d0447 100644
--- a/drivers/oprofile/buffer_sync.c
+++ b/drivers/oprofile/buffer_sync.c
@@ -345,7 +345,7 @@ static void add_data(struct op_entry *entry, struct mm_struct *mm)
 		if (cookie == NO_COOKIE)
 			offset = pc;
 		if (cookie == INVALID_COOKIE) {
-			atomic_inc(&oprofile_stats.sample_lost_no_mapping);
+			atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mapping);
 			offset = pc;
 		}
 		if (cookie != last_cookie) {
@@ -389,14 +389,14 @@ add_sample(struct mm_struct *mm, struct op_sample *s, int in_kernel)
 	/* add userspace sample */
 
 	if (!mm) {
-		atomic_inc(&oprofile_stats.sample_lost_no_mm);
+		atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mm);
 		return 0;
 	}
 
 	cookie = lookup_dcookie(mm, s->eip, &offset);
 
 	if (cookie == INVALID_COOKIE) {
-		atomic_inc(&oprofile_stats.sample_lost_no_mapping);
+		atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mapping);
 		return 0;
 	}
 
@@ -554,7 +554,7 @@ void sync_buffer(int cpu)
 		/* ignore backtraces if failed to add a sample */
 		if (state == sb_bt_start) {
 			state = sb_bt_ignore;
-			atomic_inc(&oprofile_stats.bt_lost_no_mapping);
+			atomic_inc_unchecked(&oprofile_stats.bt_lost_no_mapping);
 		}
 	}
 	release_mm(mm);
diff --git a/drivers/oprofile/event_buffer.c b/drivers/oprofile/event_buffer.c
index c0cc4e7..44d4e54 100644
--- a/drivers/oprofile/event_buffer.c
+++ b/drivers/oprofile/event_buffer.c
@@ -53,7 +53,7 @@ void add_event_entry(unsigned long value)
 	}
 
 	if (buffer_pos == buffer_size) {
-		atomic_inc(&oprofile_stats.event_lost_overflow);
+		atomic_inc_unchecked(&oprofile_stats.event_lost_overflow);
 		return;
 	}
 
diff --git a/drivers/oprofile/oprof.c b/drivers/oprofile/oprof.c
index ed2c3ec..deda85a 100644
--- a/drivers/oprofile/oprof.c
+++ b/drivers/oprofile/oprof.c
@@ -110,7 +110,7 @@ static void switch_worker(struct work_struct *work)
 	if (oprofile_ops.switch_events())
 		return;
 
-	atomic_inc(&oprofile_stats.multiplex_counter);
+	atomic_inc_unchecked(&oprofile_stats.multiplex_counter);
 	start_switch_worker();
 }
 
diff --git a/drivers/oprofile/oprofile_stats.c b/drivers/oprofile/oprofile_stats.c
index 59659ce..6c860a0 100644
--- a/drivers/oprofile/oprofile_stats.c
+++ b/drivers/oprofile/oprofile_stats.c
@@ -30,11 +30,11 @@ void oprofile_reset_stats(void)
 		cpu_buf->sample_invalid_eip = 0;
 	}
 
-	atomic_set(&oprofile_stats.sample_lost_no_mm, 0);
-	atomic_set(&oprofile_stats.sample_lost_no_mapping, 0);
-	atomic_set(&oprofile_stats.event_lost_overflow, 0);
-	atomic_set(&oprofile_stats.bt_lost_no_mapping, 0);
-	atomic_set(&oprofile_stats.multiplex_counter, 0);
+	atomic_set_unchecked(&oprofile_stats.sample_lost_no_mm, 0);
+	atomic_set_unchecked(&oprofile_stats.sample_lost_no_mapping, 0);
+	atomic_set_unchecked(&oprofile_stats.event_lost_overflow, 0);
+	atomic_set_unchecked(&oprofile_stats.bt_lost_no_mapping, 0);
+	atomic_set_unchecked(&oprofile_stats.multiplex_counter, 0);
 }
 
 
diff --git a/drivers/oprofile/oprofile_stats.h b/drivers/oprofile/oprofile_stats.h
index 1fc622b..8c48fc3 100644
--- a/drivers/oprofile/oprofile_stats.h
+++ b/drivers/oprofile/oprofile_stats.h
@@ -13,11 +13,11 @@
 #include <linux/atomic.h>
 
 struct oprofile_stat_struct {
-	atomic_t sample_lost_no_mm;
-	atomic_t sample_lost_no_mapping;
-	atomic_t bt_lost_no_mapping;
-	atomic_t event_lost_overflow;
-	atomic_t multiplex_counter;
+	atomic_unchecked_t sample_lost_no_mm;
+	atomic_unchecked_t sample_lost_no_mapping;
+	atomic_unchecked_t bt_lost_no_mapping;
+	atomic_unchecked_t event_lost_overflow;
+	atomic_unchecked_t multiplex_counter;
 };
 
 extern struct oprofile_stat_struct oprofile_stats;
diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c
index a0e5260..a6d7637 100644
--- a/drivers/oprofile/oprofilefs.c
+++ b/drivers/oprofile/oprofilefs.c
@@ -176,8 +176,8 @@ int oprofilefs_create_ro_ulong(struct dentry *root,
 
 static ssize_t atomic_read_file(struct file *file, char __user *buf, size_t count, loff_t *offset)
 {
-	atomic_t *val = file->private_data;
-	return oprofilefs_ulong_to_user(atomic_read(val), buf, count, offset);
+	atomic_unchecked_t *val = file->private_data;
+	return oprofilefs_ulong_to_user(atomic_read_unchecked(val), buf, count, offset);
 }
 
 
@@ -189,7 +189,7 @@ static const struct file_operations atomic_ro_fops = {
 
 
 int oprofilefs_create_ro_atomic(struct dentry *root,
-	char const *name, atomic_t *val)
+	char const *name, atomic_unchecked_t *val)
 {
 	return __oprofilefs_create_file(root, name,
 					&atomic_ro_fops, 0444, val);
diff --git a/drivers/oprofile/timer_int.c b/drivers/oprofile/timer_int.c
index bdef916..88c7dee 100644
--- a/drivers/oprofile/timer_int.c
+++ b/drivers/oprofile/timer_int.c
@@ -93,7 +93,7 @@ static int oprofile_cpu_notify(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __refdata oprofile_cpu_notifier = {
+static struct notifier_block oprofile_cpu_notifier = {
 	.notifier_call = oprofile_cpu_notify,
 };
 
diff --git a/drivers/parport/procfs.c b/drivers/parport/procfs.c
index c776333..aa6b325 100644
--- a/drivers/parport/procfs.c
+++ b/drivers/parport/procfs.c
@@ -65,7 +65,7 @@ static int do_active_device(struct ctl_table *table, int write,
 
 	*ppos += len;
 
-	return copy_to_user(result, buffer, len) ? -EFAULT : 0;
+	return (len > sizeof buffer || copy_to_user(result, buffer, len)) ? -EFAULT : 0;
 }
 
 #ifdef CONFIG_PARPORT_1284
@@ -107,7 +107,7 @@ static int do_autoprobe(struct ctl_table *table, int write,
 
 	*ppos += len;
 
-	return copy_to_user (result, buffer, len) ? -EFAULT : 0;
+	return (len > sizeof buffer || copy_to_user (result, buffer, len)) ? -EFAULT : 0;
 }
 #endif /* IEEE1284.3 support. */
 
diff --git a/drivers/pci/host/pci-host-common.h b/drivers/pci/host/pci-host-common.h
index 09f3fa0..af67bc0 100644
--- a/drivers/pci/host/pci-host-common.h
+++ b/drivers/pci/host/pci-host-common.h
@@ -25,7 +25,7 @@
 struct gen_pci_cfg_bus_ops {
 	u32 bus_shift;
 	struct pci_ops ops;
-};
+} __do_const;
 
 struct gen_pci_cfg_windows {
 	struct resource				res;
diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c
index 2f6d3a1..cb43cfc 100644
--- a/drivers/pci/hotplug/acpiphp_ibm.c
+++ b/drivers/pci/hotplug/acpiphp_ibm.c
@@ -463,7 +463,9 @@ static int __init ibm_acpiphp_init(void)
 		goto init_cleanup;
 	}
 
-	ibm_apci_table_attr.size = ibm_get_table_from_acpi(NULL);
+	pax_open_kernel();
+	const_cast(ibm_apci_table_attr.size) = ibm_get_table_from_acpi(NULL);
+	pax_close_kernel();
 	retval = sysfs_create_bin_file(sysdir, &ibm_apci_table_attr);
 
 	return retval;
diff --git a/drivers/pci/hotplug/cpcihp_generic.c b/drivers/pci/hotplug/cpcihp_generic.c
index 88a44a7..de358ce 100644
--- a/drivers/pci/hotplug/cpcihp_generic.c
+++ b/drivers/pci/hotplug/cpcihp_generic.c
@@ -73,7 +73,6 @@ static u16 port;
 static unsigned int enum_bit;
 static u8 enum_mask;
 
-static struct cpci_hp_controller_ops generic_hpc_ops;
 static struct cpci_hp_controller generic_hpc;
 
 static int __init validate_parameters(void)
@@ -139,6 +138,10 @@ static int query_enum(void)
 	return ((value & enum_mask) == enum_mask);
 }
 
+static struct cpci_hp_controller_ops generic_hpc_ops = {
+	.query_enum = query_enum,
+};
+
 static int __init cpcihp_generic_init(void)
 {
 	int status;
@@ -165,7 +168,6 @@ static int __init cpcihp_generic_init(void)
 	pci_dev_put(dev);
 
 	memset(&generic_hpc, 0, sizeof(struct cpci_hp_controller));
-	generic_hpc_ops.query_enum = query_enum;
 	generic_hpc.ops = &generic_hpc_ops;
 
 	status = cpci_hp_register_controller(&generic_hpc);
diff --git a/drivers/pci/hotplug/cpcihp_zt5550.c b/drivers/pci/hotplug/cpcihp_zt5550.c
index 5f49c3f..438f019 100644
--- a/drivers/pci/hotplug/cpcihp_zt5550.c
+++ b/drivers/pci/hotplug/cpcihp_zt5550.c
@@ -59,7 +59,6 @@
 /* local variables */
 static bool debug;
 static bool poll;
-static struct cpci_hp_controller_ops zt5550_hpc_ops;
 static struct cpci_hp_controller zt5550_hpc;
 
 /* Primary cPCI bus bridge device */
@@ -204,6 +203,10 @@ static int zt5550_hc_disable_irq(void)
 	return 0;
 }
 
+static struct cpci_hp_controller_ops zt5550_hpc_ops = {
+	.query_enum = zt5550_hc_query_enum,
+};
+
 static int zt5550_hc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
 	int status;
@@ -215,16 +218,17 @@ static int zt5550_hc_init_one(struct pci_dev *pdev, const struct pci_device_id *
 	dbg("returned from zt5550_hc_config");
 
 	memset(&zt5550_hpc, 0, sizeof(struct cpci_hp_controller));
-	zt5550_hpc_ops.query_enum = zt5550_hc_query_enum;
 	zt5550_hpc.ops = &zt5550_hpc_ops;
 	if (!poll) {
 		zt5550_hpc.irq = hc_dev->irq;
 		zt5550_hpc.irq_flags = IRQF_SHARED;
 		zt5550_hpc.dev_id = hc_dev;
 
-		zt5550_hpc_ops.enable_irq = zt5550_hc_enable_irq;
-		zt5550_hpc_ops.disable_irq = zt5550_hc_disable_irq;
-		zt5550_hpc_ops.check_irq = zt5550_hc_check_irq;
+		pax_open_kernel();
+		const_cast(zt5550_hpc_ops.enable_irq) = zt5550_hc_enable_irq;
+		const_cast(zt5550_hpc_ops.disable_irq) = zt5550_hc_disable_irq;
+		const_cast(zt5550_hpc_ops.check_irq) = zt5550_hc_check_irq;
+		pax_open_kernel();
 	} else {
 		info("using ENUM# polling mode");
 	}
diff --git a/drivers/pci/hotplug/cpqphp_nvram.c b/drivers/pci/hotplug/cpqphp_nvram.c
index c25fc90..b054774 100644
--- a/drivers/pci/hotplug/cpqphp_nvram.c
+++ b/drivers/pci/hotplug/cpqphp_nvram.c
@@ -425,8 +425,10 @@ static u32 store_HRT(void __iomem *rom_start)
 
 void compaq_nvram_init(void __iomem *rom_start)
 {
+#ifndef CONFIG_PAX_KERNEXEC
 	if (rom_start)
 		compaq_int15_entry_point = (rom_start + ROM_INT15_PHY_ADDR - ROM_PHY_ADDR);
+#endif
 
 	dbg("int15 entry  = %p\n", compaq_int15_entry_point);
 
diff --git a/drivers/pci/hotplug/pci_hotplug_core.c b/drivers/pci/hotplug/pci_hotplug_core.c
index 9acd199..1b19f5b 100644
--- a/drivers/pci/hotplug/pci_hotplug_core.c
+++ b/drivers/pci/hotplug/pci_hotplug_core.c
@@ -434,8 +434,10 @@ int __pci_hp_register(struct hotplug_slot *slot, struct pci_bus *bus,
 		return -EINVAL;
 	}
 
-	slot->ops->owner = owner;
-	slot->ops->mod_name = mod_name;
+	pax_open_kernel();
+	const_cast(slot->ops->owner) = owner;
+	const_cast(slot->ops->mod_name) = mod_name;
+	pax_close_kernel();
 
 	mutex_lock(&pci_hp_mutex);
 	/*
diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c
index ac531e6..716d058 100644
--- a/drivers/pci/hotplug/pciehp_core.c
+++ b/drivers/pci/hotplug/pciehp_core.c
@@ -87,7 +87,7 @@ static int init_slot(struct controller *ctrl)
 	struct slot *slot = ctrl->slot;
 	struct hotplug_slot *hotplug = NULL;
 	struct hotplug_slot_info *info = NULL;
-	struct hotplug_slot_ops *ops = NULL;
+	hotplug_slot_ops_no_const *ops = NULL;
 	char name[SLOT_NAME_SIZE];
 	int retval = -ENOMEM;
 
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index a080f44..24ad26c 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -474,8 +474,8 @@ static int populate_msi_sysfs(struct pci_dev *pdev)
 {
 	struct attribute **msi_attrs;
 	struct attribute *msi_attr;
-	struct device_attribute *msi_dev_attr;
-	struct attribute_group *msi_irq_group;
+	device_attribute_no_const *msi_dev_attr;
+	attribute_group_no_const *msi_irq_group;
 	const struct attribute_group **msi_irq_groups;
 	struct msi_desc *entry;
 	int ret = -ENOMEM;
@@ -537,7 +537,7 @@ error_attrs:
 	count = 0;
 	msi_attr = msi_attrs[count];
 	while (msi_attr) {
-		msi_dev_attr = container_of(msi_attr, struct device_attribute, attr);
+		msi_dev_attr = container_of(msi_attr, device_attribute_no_const, attr);
 		kfree(msi_attr->name);
 		kfree(msi_dev_attr);
 		++count;
@@ -1233,12 +1233,14 @@ static void pci_msi_domain_update_dom_ops(struct msi_domain_info *info)
 	if (ops == NULL) {
 		info->ops = &pci_msi_domain_ops_default;
 	} else {
+		pax_open_kernel();
 		if (ops->set_desc == NULL)
-			ops->set_desc = pci_msi_domain_set_desc;
+			const_cast(ops->set_desc) = pci_msi_domain_set_desc;
 		if (ops->msi_check == NULL)
-			ops->msi_check = pci_msi_domain_check_cap;
+			const_cast(ops->msi_check) = pci_msi_domain_check_cap;
 		if (ops->handle_error == NULL)
-			ops->handle_error = pci_msi_domain_handle_error;
+			const_cast(ops->handle_error) = pci_msi_domain_handle_error;
+		pax_close_kernel();
 	}
 }
 
@@ -1247,12 +1249,14 @@ static void pci_msi_domain_update_chip_ops(struct msi_domain_info *info)
 	struct irq_chip *chip = info->chip;
 
 	BUG_ON(!chip);
+	pax_open_kernel();
 	if (!chip->irq_write_msi_msg)
-		chip->irq_write_msi_msg = pci_msi_domain_write_msg;
+		const_cast(chip->irq_write_msi_msg) = pci_msi_domain_write_msg;
 	if (!chip->irq_mask)
-		chip->irq_mask = pci_msi_mask_irq;
+		const_cast(chip->irq_mask) = pci_msi_mask_irq;
 	if (!chip->irq_unmask)
-		chip->irq_unmask = pci_msi_unmask_irq;
+		const_cast(chip->irq_unmask) = pci_msi_unmask_irq;
+	pax_close_kernel();
 }
 
 /**
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 342b691..aede3f4 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -1137,7 +1137,7 @@ static int pci_create_attr(struct pci_dev *pdev, int num, int write_combine)
 {
 	/* allocate attribute structure, piggyback attribute name */
 	int name_len = write_combine ? 13 : 10;
-	struct bin_attribute *res_attr;
+	bin_attribute_no_const *res_attr;
 	char *res_attr_name;
 	int retval;
 
@@ -1317,7 +1317,7 @@ static struct device_attribute reset_attr = __ATTR(reset, 0200, NULL, reset_stor
 static int pci_create_capabilities_sysfs(struct pci_dev *dev)
 {
 	int retval;
-	struct bin_attribute *attr;
+	bin_attribute_no_const *attr;
 
 	/* If the device has VPD, try to expose it in sysfs. */
 	if (dev->vpd) {
@@ -1364,7 +1364,7 @@ int __must_check pci_create_sysfs_dev_files(struct pci_dev *pdev)
 {
 	int retval;
 	int rom_size;
-	struct bin_attribute *attr;
+	bin_attribute_no_const *attr;
 
 	if (!sysfs_initialized)
 		return -EACCES;
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index a814bbb..ff02c2c 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -102,7 +102,7 @@ struct pci_vpd_ops {
 
 struct pci_vpd {
 	const struct pci_vpd_ops *ops;
-	struct bin_attribute *attr; /* descriptor for sysfs VPD entry */
+	bin_attribute_no_const *attr; /* descriptor for sysfs VPD entry */
 	struct mutex	lock;
 	unsigned int	len;
 	u16		flag;
@@ -303,7 +303,7 @@ static inline int pci_iov_bus_range(struct pci_bus *bus)
 
 #endif /* CONFIG_PCI_IOV */
 
-unsigned long pci_cardbus_resource_alignment(struct resource *);
+unsigned long pci_cardbus_resource_alignment(const struct resource *);
 
 static inline resource_size_t pci_resource_alignment(struct pci_dev *dev,
 						     struct resource *res)
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
index 2dfe7fd..61f8677 100644
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@@ -27,9 +27,9 @@
 #define MODULE_PARAM_PREFIX "pcie_aspm."
 
 /* Note: those are not register definitions */
-#define ASPM_STATE_L0S_UP	(1)	/* Upstream direction L0s state */
-#define ASPM_STATE_L0S_DW	(2)	/* Downstream direction L0s state */
-#define ASPM_STATE_L1		(4)	/* L1 state */
+#define ASPM_STATE_L0S_UP	(1U)	/* Upstream direction L0s state */
+#define ASPM_STATE_L0S_DW	(2U)	/* Downstream direction L0s state */
+#define ASPM_STATE_L1		(4U)	/* L1 state */
 #define ASPM_STATE_L0S		(ASPM_STATE_L0S_UP | ASPM_STATE_L0S_DW)
 #define ASPM_STATE_ALL		(ASPM_STATE_L0S | ASPM_STATE_L1)
 
@@ -775,7 +775,7 @@ void pci_disable_link_state(struct pci_dev *pdev, int state)
 }
 EXPORT_SYMBOL(pci_disable_link_state);
 
-static int pcie_aspm_set_policy(const char *val, struct kernel_param *kp)
+static int pcie_aspm_set_policy(const char *val, const struct kernel_param *kp)
 {
 	int i;
 	struct pcie_link_state *link;
@@ -802,7 +802,7 @@ static int pcie_aspm_set_policy(const char *val, struct kernel_param *kp)
 	return 0;
 }
 
-static int pcie_aspm_get_policy(char *buffer, struct kernel_param *kp)
+static int pcie_aspm_get_policy(char *buffer, const struct kernel_param *kp)
 {
 	int i, cnt = 0;
 	for (i = 0; i < ARRAY_SIZE(policy_str); i++)
diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
index be35da2..ec16cdb 100644
--- a/drivers/pci/pcie/portdrv_pci.c
+++ b/drivers/pci/pcie/portdrv_pci.c
@@ -324,7 +324,7 @@ static int __init dmi_pcie_pme_disable_msi(const struct dmi_system_id *d)
 	return 0;
 }
 
-static struct dmi_system_id __initdata pcie_portdrv_dmi_table[] = {
+static const struct dmi_system_id __initconst pcie_portdrv_dmi_table[] = {
 	/*
 	 * Boxes that should not use MSI for PCIe PME signaling.
 	 */
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index bf8405f..80490e5 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -179,7 +179,7 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
 	u16 orig_cmd;
 	struct pci_bus_region region, inverted_region;
 
-	mask = type ? PCI_ROM_ADDRESS_MASK : ~0;
+	mask = type ? (u32)PCI_ROM_ADDRESS_MASK : ~0;
 
 	/* No printks while decoding is disabled! */
 	if (!dev->mmio_always_on) {
diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
index 3f155e7..0f4b1f0 100644
--- a/drivers/pci/proc.c
+++ b/drivers/pci/proc.c
@@ -434,7 +434,16 @@ static const struct file_operations proc_bus_pci_dev_operations = {
 static int __init pci_proc_init(void)
 {
 	struct pci_dev *dev = NULL;
+
+#ifdef CONFIG_GRKERNSEC_PROC_ADD
+#ifdef CONFIG_GRKERNSEC_PROC_USER
+	proc_bus_pci_dir = proc_mkdir_mode("bus/pci", S_IRUSR | S_IXUSR, NULL);
+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+	proc_bus_pci_dir = proc_mkdir_mode("bus/pci", S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP, NULL);
+#endif
+#else
 	proc_bus_pci_dir = proc_mkdir("bus/pci", NULL);
+#endif
 	proc_create("devices", 0, proc_bus_pci_dir,
 		    &proc_bus_pci_dev_operations);
 	proc_initialized = 1;
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 55641a3..ff9c8dc 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -405,8 +405,12 @@ static void __assign_resources_sorted(struct list_head *head,
 
 	/* Update res in head list with add_size in realloc_head list */
 	list_for_each_entry_safe(dev_res, tmp_res, head, list) {
-		dev_res->res->end += get_res_add_size(realloc_head,
-							dev_res->res);
+		resource_size_t add_size = get_res_add_size(realloc_head, dev_res->res);
+
+		if (dev_res->res->start == 0 && dev_res->res->end == RESOURCE_SIZE_MAX)
+			dev_res->res->end = add_size - 1;
+		else
+			dev_res->res->end += get_res_add_size(realloc_head, dev_res->res);
 
 		/*
 		 * There are two kinds of additional resources in the list:
@@ -1114,7 +1118,7 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask,
 	return 0;
 }
 
-unsigned long pci_cardbus_resource_alignment(struct resource *res)
+unsigned long pci_cardbus_resource_alignment(const struct resource *res)
 {
 	if (res->flags & IORESOURCE_IO)
 		return pci_cardbus_io_size;
diff --git a/drivers/pinctrl/nomadik/pinctrl-nomadik.c b/drivers/pinctrl/nomadik/pinctrl-nomadik.c
index c8969dd..4764267 100644
--- a/drivers/pinctrl/nomadik/pinctrl-nomadik.c
+++ b/drivers/pinctrl/nomadik/pinctrl-nomadik.c
@@ -1207,7 +1207,7 @@ static int nmk_gpio_probe(struct platform_device *dev)
 	struct device_node *np = dev->dev.of_node;
 	struct nmk_gpio_chip *nmk_chip;
 	struct gpio_chip *chip;
-	struct irq_chip *irqchip;
+	irq_chip_no_const *irqchip;
 	int latent_irq;
 	bool supports_sleepmode;
 	int irq;
diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index 523b6b7..eb4c74d 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -24,6 +24,7 @@
 #include <linux/pinctrl/pinmux.h>
 /* Since we request GPIOs from ourself */
 #include <linux/pinctrl/consumer.h>
+#include <asm/pgtable.h>
 
 #include "pinctrl-at91.h"
 #include "core.h"
@@ -1609,7 +1610,9 @@ static int at91_gpio_of_irq_setup(struct platform_device *pdev,
 	at91_gpio->pioc_hwirq = irqd_to_hwirq(d);
 
 	/* Setup proper .irq_set_type function */
-	gpio_irqchip.irq_set_type = at91_gpio->ops->irq_type;
+	pax_open_kernel();
+	const_cast(gpio_irqchip.irq_set_type) = at91_gpio->ops->irq_type;
+	pax_close_kernel();
 
 	/* Disable irqs of this PIO controller */
 	writel_relaxed(~0, at91_gpio->regbase + PIO_IDR);
diff --git a/drivers/platform/chrome/chromeos_laptop.c b/drivers/platform/chrome/chromeos_laptop.c
index 2b441e9..855d867 100644
--- a/drivers/platform/chrome/chromeos_laptop.c
+++ b/drivers/platform/chrome/chromeos_laptop.c
@@ -498,7 +498,7 @@ static struct chromeos_laptop cr48 = {
 	.callback = chromeos_laptop_dmi_matched, \
 	.driver_data = (void *)&board_
 
-static struct dmi_system_id chromeos_laptop_dmi_table[] __initdata = {
+static struct dmi_system_id chromeos_laptop_dmi_table[] __initconst = {
 	{
 		.ident = "Samsung Series 5 550",
 		.matches = {
diff --git a/drivers/platform/chrome/chromeos_pstore.c b/drivers/platform/chrome/chromeos_pstore.c
index 3474920..acc9581 100644
--- a/drivers/platform/chrome/chromeos_pstore.c
+++ b/drivers/platform/chrome/chromeos_pstore.c
@@ -13,7 +13,7 @@
 #include <linux/platform_device.h>
 #include <linux/pstore_ram.h>
 
-static struct dmi_system_id chromeos_pstore_dmi_table[] __initdata = {
+static const struct dmi_system_id chromeos_pstore_dmi_table[] __initconst = {
 	{
 		/*
 		 * Today all Chromebooks/boxes ship with Google_* as version and
diff --git a/drivers/platform/chrome/cros_ec_lpc.c b/drivers/platform/chrome/cros_ec_lpc.c
index f9a2454..03f513c 100644
--- a/drivers/platform/chrome/cros_ec_lpc.c
+++ b/drivers/platform/chrome/cros_ec_lpc.c
@@ -300,7 +300,7 @@ static int cros_ec_lpc_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static struct dmi_system_id cros_ec_lpc_dmi_table[] __initdata = {
+static struct dmi_system_id cros_ec_lpc_dmi_table[] __initconst = {
 	{
 		/*
 		 * Today all Chromebooks/boxes ship with Google_* as version and
diff --git a/drivers/platform/x86/alienware-wmi.c b/drivers/platform/x86/alienware-wmi.c
index 0056294..8f8c2d5 100644
--- a/drivers/platform/x86/alienware-wmi.c
+++ b/drivers/platform/x86/alienware-wmi.c
@@ -209,7 +209,7 @@ struct wmax_led_args {
 } __packed;
 
 static struct platform_device *platform_device;
-static struct device_attribute *zone_dev_attrs;
+static device_attribute_no_const *zone_dev_attrs;
 static struct attribute **zone_attrs;
 static struct platform_zone *zone_data;
 
@@ -219,7 +219,7 @@ static struct platform_driver platform_driver = {
 		   }
 };
 
-static struct attribute_group zone_attribute_group = {
+static attribute_group_no_const zone_attribute_group = {
 	.name = "rgb_zones",
 };
 
diff --git a/drivers/platform/x86/apple-gmux.c b/drivers/platform/x86/apple-gmux.c
index 4034d2d..53ed0bd 100644
--- a/drivers/platform/x86/apple-gmux.c
+++ b/drivers/platform/x86/apple-gmux.c
@@ -479,7 +479,7 @@ static int gmux_set_power_state(enum vga_switcheroo_client_id id,
 	return gmux_set_discrete_state(apple_gmux_data, state);
 }
 
-static int gmux_get_client_id(struct pci_dev *pdev)
+static enum vga_switcheroo_client_id gmux_get_client_id(struct pci_dev *pdev)
 {
 	/*
 	 * Early Macbook Pros with switchable graphics use nvidia
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index a96630d..0fe8410 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -1867,6 +1867,10 @@ static int show_dsts(struct seq_file *m, void *data)
 	int err;
 	u32 retval = -1;
 
+#ifdef CONFIG_GRKERNSEC_KMEM
+	return -EPERM;
+#endif
+
 	err = asus_wmi_get_devstate(asus, asus->debug.dev_id, &retval);
 
 	if (err < 0)
@@ -1883,6 +1887,10 @@ static int show_devs(struct seq_file *m, void *data)
 	int err;
 	u32 retval = -1;
 
+#ifdef CONFIG_GRKERNSEC_KMEM
+	return -EPERM;
+#endif
+
 	err = asus_wmi_set_devstate(asus->debug.dev_id, asus->debug.ctrl_param,
 				    &retval);
 
@@ -1907,6 +1915,10 @@ static int show_call(struct seq_file *m, void *data)
 	union acpi_object *obj;
 	acpi_status status;
 
+#ifdef CONFIG_GRKERNSEC_KMEM
+	return -EPERM;
+#endif
+
 	status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID,
 				     1, asus->debug.method_id,
 				     &input, &output);
diff --git a/drivers/platform/x86/compal-laptop.c b/drivers/platform/x86/compal-laptop.c
index e1c2b6d..8f25439 100644
--- a/drivers/platform/x86/compal-laptop.c
+++ b/drivers/platform/x86/compal-laptop.c
@@ -805,7 +805,7 @@ static int dmi_check_cb_extra(const struct dmi_system_id *id)
 	return 1;
 }
 
-static struct dmi_system_id __initdata compal_dmi_table[] = {
+static const struct dmi_system_id __initconst compal_dmi_table[] = {
 	{
 		.ident = "FL90/IFL90",
 		.matches = {
diff --git a/drivers/platform/x86/hdaps.c b/drivers/platform/x86/hdaps.c
index 458e6c9..089aee7 100644
--- a/drivers/platform/x86/hdaps.c
+++ b/drivers/platform/x86/hdaps.c
@@ -514,7 +514,7 @@ static int __init hdaps_dmi_match_invert(const struct dmi_system_id *id)
    "ThinkPad T42p", so the order of the entries matters.
    If your ThinkPad is not recognized, please update to latest
    BIOS. This is especially the case for some R52 ThinkPads. */
-static struct dmi_system_id __initdata hdaps_whitelist[] = {
+static const struct dmi_system_id __initconst hdaps_whitelist[] = {
 	HDAPS_DMI_MATCH_INVERT("IBM", "ThinkPad R50p", HDAPS_BOTH_AXES),
 	HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad R50"),
 	HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad R51"),
diff --git a/drivers/platform/x86/ibm_rtl.c b/drivers/platform/x86/ibm_rtl.c
index c62e5e1..854b418 100644
--- a/drivers/platform/x86/ibm_rtl.c
+++ b/drivers/platform/x86/ibm_rtl.c
@@ -227,7 +227,7 @@ static void rtl_teardown_sysfs(void) {
 }
 
 
-static struct dmi_system_id __initdata ibm_rtl_dmi_table[] = {
+static const struct dmi_system_id __initconst ibm_rtl_dmi_table[] = {
 	{                                                  \
 		.matches = {                               \
 			DMI_MATCH(DMI_SYS_VENDOR, "IBM"),  \
diff --git a/drivers/platform/x86/intel_oaktrail.c b/drivers/platform/x86/intel_oaktrail.c
index 6aa33c4..cfb5425 100644
--- a/drivers/platform/x86/intel_oaktrail.c
+++ b/drivers/platform/x86/intel_oaktrail.c
@@ -299,7 +299,7 @@ static int dmi_check_cb(const struct dmi_system_id *id)
 	return 0;
 }
 
-static struct dmi_system_id __initdata oaktrail_dmi_table[] = {
+static const struct dmi_system_id __initconst oaktrail_dmi_table[] = {
 	{
 		.ident = "OakTrail platform",
 		.matches = {
diff --git a/drivers/platform/x86/msi-laptop.c b/drivers/platform/x86/msi-laptop.c
index 4231770..cbf93a6 100644
--- a/drivers/platform/x86/msi-laptop.c
+++ b/drivers/platform/x86/msi-laptop.c
@@ -605,7 +605,7 @@ static int dmi_check_cb(const struct dmi_system_id *dmi)
 	return 1;
 }
 
-static struct dmi_system_id __initdata msi_dmi_table[] = {
+static const struct dmi_system_id __initconst msi_dmi_table[] = {
 	{
 		.ident = "MSI S270",
 		.matches = {
@@ -1000,12 +1000,14 @@ static int __init load_scm_model_init(struct platform_device *sdev)
 
 	if (!quirks->ec_read_only) {
 		/* allow userland write sysfs file  */
-		dev_attr_bluetooth.store = store_bluetooth;
-		dev_attr_wlan.store = store_wlan;
-		dev_attr_threeg.store = store_threeg;
-		dev_attr_bluetooth.attr.mode |= S_IWUSR;
-		dev_attr_wlan.attr.mode |= S_IWUSR;
-		dev_attr_threeg.attr.mode |= S_IWUSR;
+		pax_open_kernel();
+		const_cast(dev_attr_bluetooth.store) = store_bluetooth;
+		const_cast(dev_attr_wlan.store) = store_wlan;
+		const_cast(dev_attr_threeg.store) = store_threeg;
+		const_cast(dev_attr_bluetooth.attr.mode) |= S_IWUSR;
+		const_cast(dev_attr_wlan.attr.mode) |= S_IWUSR;
+		const_cast(dev_attr_threeg.attr.mode) |= S_IWUSR;
+		pax_close_kernel();
 	}
 
 	/* disable hardware control by fn key */
diff --git a/drivers/platform/x86/msi-wmi.c b/drivers/platform/x86/msi-wmi.c
index 978e6d6..1f0b37d 100644
--- a/drivers/platform/x86/msi-wmi.c
+++ b/drivers/platform/x86/msi-wmi.c
@@ -184,7 +184,7 @@ static const struct backlight_ops msi_backlight_ops = {
 static void msi_wmi_notify(u32 value, void *context)
 {
 	struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
-	static struct key_entry *key;
+	struct key_entry *key;
 	union acpi_object *obj;
 	acpi_status status;
 
diff --git a/drivers/platform/x86/samsung-laptop.c b/drivers/platform/x86/samsung-laptop.c
index 8c146e2..356c62e 100644
--- a/drivers/platform/x86/samsung-laptop.c
+++ b/drivers/platform/x86/samsung-laptop.c
@@ -1567,7 +1567,7 @@ static int __init samsung_dmi_matched(const struct dmi_system_id *d)
 	return 0;
 }
 
-static struct dmi_system_id __initdata samsung_dmi_table[] = {
+static const struct dmi_system_id __initconst samsung_dmi_table[] = {
 	{
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR,
diff --git a/drivers/platform/x86/samsung-q10.c b/drivers/platform/x86/samsung-q10.c
index e6aac72..e11ff24 100644
--- a/drivers/platform/x86/samsung-q10.c
+++ b/drivers/platform/x86/samsung-q10.c
@@ -95,7 +95,7 @@ static int __init dmi_check_callback(const struct dmi_system_id *id)
 	return 1;
 }
 
-static struct dmi_system_id __initdata samsungq10_dmi_table[] = {
+static const struct dmi_system_id __initconst samsungq10_dmi_table[] = {
 	{
 		.ident = "Samsung Q10",
 		.matches = {
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index e9caa34..72ed655 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -2553,7 +2553,7 @@ static void sony_nc_gfx_switch_cleanup(struct platform_device *pd)
 }
 
 /* High speed charging function */
-static struct device_attribute *hsc_handle;
+static device_attribute_no_const *hsc_handle;
 
 static ssize_t sony_nc_highspeed_charging_store(struct device *dev,
 		struct device_attribute *attr,
@@ -2627,7 +2627,7 @@ static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd)
 }
 
 /* low battery function */
-static struct device_attribute *lowbatt_handle;
+static device_attribute_no_const *lowbatt_handle;
 
 static ssize_t sony_nc_lowbatt_store(struct device *dev,
 		struct device_attribute *attr,
@@ -2693,7 +2693,7 @@ static void sony_nc_lowbatt_cleanup(struct platform_device *pd)
 }
 
 /* fan speed function */
-static struct device_attribute *fan_handle, *hsf_handle;
+static device_attribute_no_const *fan_handle, *hsf_handle;
 
 static ssize_t sony_nc_hsfan_store(struct device *dev,
 		struct device_attribute *attr,
@@ -2800,7 +2800,7 @@ static void sony_nc_fanspeed_cleanup(struct platform_device *pd)
 }
 
 /* USB charge function */
-static struct device_attribute *uc_handle;
+static device_attribute_no_const *uc_handle;
 
 static ssize_t sony_nc_usb_charge_store(struct device *dev,
 		struct device_attribute *attr,
@@ -2874,7 +2874,7 @@ static void sony_nc_usb_charge_cleanup(struct platform_device *pd)
 }
 
 /* Panel ID function */
-static struct device_attribute *panel_handle;
+static device_attribute_no_const *panel_handle;
 
 static ssize_t sony_nc_panelid_show(struct device *dev,
 		struct device_attribute *attr, char *buffer)
@@ -2921,7 +2921,7 @@ static void sony_nc_panelid_cleanup(struct platform_device *pd)
 }
 
 /* smart connect function */
-static struct device_attribute *sc_handle;
+static device_attribute_no_const *sc_handle;
 
 static ssize_t sony_nc_smart_conn_store(struct device *dev,
 		struct device_attribute *attr,
@@ -4877,7 +4877,7 @@ static struct acpi_driver sony_pic_driver = {
 	.drv.pm = &sony_pic_pm,
 };
 
-static struct dmi_system_id __initdata sonypi_dmi_table[] = {
+static const struct dmi_system_id __initconst sonypi_dmi_table[] = {
 	{
 		.ident = "Sony Vaio",
 		.matches = {
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 9255ff3..b38a0d9 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -2461,10 +2461,10 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
 				&& !tp_features.bright_unkfw)
 			TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME);
 	}
+}
 
 #undef TPACPI_COMPARE_KEY
 #undef TPACPI_MAY_SEND_KEY
-}
 
 /*
  * Polling driver
@@ -4164,7 +4164,7 @@ static int bluetooth_get_status(void)
 			TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF;
 }
 
-static int bluetooth_set_status(enum tpacpi_rfkill_state state)
+static int bluetooth_set_status(const enum tpacpi_rfkill_state state)
 {
 	int status;
 
@@ -4352,7 +4352,7 @@ static int wan_get_status(void)
 			TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF;
 }
 
-static int wan_set_status(enum tpacpi_rfkill_state state)
+static int wan_set_status(const enum tpacpi_rfkill_state state)
 {
 	int status;
 
@@ -4538,7 +4538,7 @@ static int uwb_get_status(void)
 			TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF;
 }
 
-static int uwb_set_status(enum tpacpi_rfkill_state state)
+static int uwb_set_status(const enum tpacpi_rfkill_state state)
 {
 	int status;
 
@@ -9450,7 +9450,7 @@ static struct ibm_init_struct ibms_init[] __initdata = {
 	},
 };
 
-static int __init set_ibm_param(const char *val, struct kernel_param *kp)
+static int __init set_ibm_param(const char *val, const struct kernel_param *kp)
 {
 	unsigned int i;
 	struct ibm_struct *ibm;
diff --git a/drivers/pnp/pnpbios/bioscalls.c b/drivers/pnp/pnpbios/bioscalls.c
index 438d4c7..ca8a2fb 100644
--- a/drivers/pnp/pnpbios/bioscalls.c
+++ b/drivers/pnp/pnpbios/bioscalls.c
@@ -59,7 +59,7 @@ do { \
 	set_desc_limit(&gdt[(selname) >> 3], (size) - 1); \
 } while(0)
 
-static struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4092,
+static const struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4093,
 			(unsigned long)__va(0x400UL), PAGE_SIZE - 0x400 - 1);
 
 /*
@@ -96,7 +96,10 @@ static inline u16 call_pnp_bios(u16 func, u16 arg1, u16 arg2, u16 arg3,
 
 	cpu = get_cpu();
 	save_desc_40 = get_cpu_gdt_table(cpu)[0x40 / 8];
+
+	pax_open_kernel();
 	get_cpu_gdt_table(cpu)[0x40 / 8] = bad_bios_desc;
+	pax_close_kernel();
 
 	/* On some boxes IRQ's during PnP BIOS calls are deadly.  */
 	spin_lock_irqsave(&pnp_bios_lock, flags);
@@ -134,7 +137,10 @@ static inline u16 call_pnp_bios(u16 func, u16 arg1, u16 arg2, u16 arg3,
 			     :"memory");
 	spin_unlock_irqrestore(&pnp_bios_lock, flags);
 
+	pax_open_kernel();
 	get_cpu_gdt_table(cpu)[0x40 / 8] = save_desc_40;
+	pax_close_kernel();
+
 	put_cpu();
 
 	/* If we get here and this is set then the PnP BIOS faulted on us. */
@@ -468,7 +474,7 @@ int pnp_bios_read_escd(char *data, u32 nvram_base)
 	return status;
 }
 
-void pnpbios_calls_init(union pnp_bios_install_struct *header)
+void __init pnpbios_calls_init(union pnp_bios_install_struct *header)
 {
 	int i;
 
@@ -476,6 +482,8 @@ void pnpbios_calls_init(union pnp_bios_install_struct *header)
 	pnp_bios_callpoint.offset = header->fields.pm16offset;
 	pnp_bios_callpoint.segment = PNP_CS16;
 
+	pax_open_kernel();
+
 	for_each_possible_cpu(i) {
 		struct desc_struct *gdt = get_cpu_gdt_table(i);
 		if (!gdt)
@@ -487,4 +495,6 @@ void pnpbios_calls_init(union pnp_bios_install_struct *header)
 		set_desc_base(&gdt[GDT_ENTRY_PNPBIOS_DS],
 			 (unsigned long)__va(header->fields.pm16dseg));
 	}
+
+	pax_close_kernel();
 }
diff --git a/drivers/pnp/pnpbios/core.c b/drivers/pnp/pnpbios/core.c
index facd43b..b291260 100644
--- a/drivers/pnp/pnpbios/core.c
+++ b/drivers/pnp/pnpbios/core.c
@@ -494,7 +494,7 @@ static int __init exploding_pnp_bios(const struct dmi_system_id *d)
 	return 0;
 }
 
-static struct dmi_system_id pnpbios_dmi_table[] __initdata = {
+static const struct dmi_system_id pnpbios_dmi_table[] __initconst = {
 	{			/* PnPBIOS GPF on boot */
 	 .callback = exploding_pnp_bios,
 	 .ident = "Higraded P14H",
diff --git a/drivers/power/pda_power.c b/drivers/power/pda_power.c
index dfe1ee8..67e820c 100644
--- a/drivers/power/pda_power.c
+++ b/drivers/power/pda_power.c
@@ -38,7 +38,11 @@ static struct power_supply *pda_psy_ac, *pda_psy_usb;
 
 #if IS_ENABLED(CONFIG_USB_PHY)
 static struct usb_phy *transceiver;
-static struct notifier_block otg_nb;
+static int otg_handle_notification(struct notifier_block *nb,
+		unsigned long event, void *unused);
+static struct notifier_block otg_nb = {
+	.notifier_call = otg_handle_notification
+};
 #endif
 
 static struct regulator *ac_draw;
@@ -373,7 +377,6 @@ static int pda_power_probe(struct platform_device *pdev)
 
 #if IS_ENABLED(CONFIG_USB_PHY)
 	if (!IS_ERR_OR_NULL(transceiver) && pdata->use_otg_notifier) {
-		otg_nb.notifier_call = otg_handle_notification;
 		ret = usb_register_notifier(transceiver, &otg_nb);
 		if (ret) {
 			dev_err(dev, "failure to register otg notifier\n");
diff --git a/drivers/power/power_supply.h b/drivers/power/power_supply.h
index cc439fd..8fa30df 100644
--- a/drivers/power/power_supply.h
+++ b/drivers/power/power_supply.h
@@ -16,12 +16,12 @@ struct power_supply;
 
 #ifdef CONFIG_SYSFS
 
-extern void power_supply_init_attrs(struct device_type *dev_type);
+extern void power_supply_init_attrs(void);
 extern int power_supply_uevent(struct device *dev, struct kobj_uevent_env *env);
 
 #else
 
-static inline void power_supply_init_attrs(struct device_type *dev_type) {}
+static inline void power_supply_init_attrs(void) {}
 #define power_supply_uevent NULL
 
 #endif /* CONFIG_SYSFS */
diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c
index 456987c..45396a3 100644
--- a/drivers/power/power_supply_core.c
+++ b/drivers/power/power_supply_core.c
@@ -28,7 +28,10 @@ EXPORT_SYMBOL_GPL(power_supply_class);
 ATOMIC_NOTIFIER_HEAD(power_supply_notifier);
 EXPORT_SYMBOL_GPL(power_supply_notifier);
 
-static struct device_type power_supply_dev_type;
+extern const struct attribute_group *power_supply_attr_groups[];
+static struct device_type power_supply_dev_type = {
+	.groups = power_supply_attr_groups,
+};
 
 #define POWER_SUPPLY_DEFERRED_REGISTER_TIME	msecs_to_jiffies(10)
 
@@ -960,7 +963,7 @@ static int __init power_supply_class_init(void)
 		return PTR_ERR(power_supply_class);
 
 	power_supply_class->dev_uevent = power_supply_uevent;
-	power_supply_init_attrs(&power_supply_dev_type);
+	power_supply_init_attrs();
 
 	return 0;
 }
diff --git a/drivers/power/power_supply_sysfs.c b/drivers/power/power_supply_sysfs.c
index 80fed98..2fe1ff6 100644
--- a/drivers/power/power_supply_sysfs.c
+++ b/drivers/power/power_supply_sysfs.c
@@ -239,17 +239,15 @@ static struct attribute_group power_supply_attr_group = {
 	.is_visible = power_supply_attr_is_visible,
 };
 
-static const struct attribute_group *power_supply_attr_groups[] = {
+const struct attribute_group *power_supply_attr_groups[] = {
 	&power_supply_attr_group,
 	NULL,
 };
 
-void power_supply_init_attrs(struct device_type *dev_type)
+void power_supply_init_attrs(void)
 {
 	int i;
 
-	dev_type->groups = power_supply_attr_groups;
-
 	for (i = 0; i < ARRAY_SIZE(power_supply_attrs); i++)
 		__power_supply_attrs[i] = &power_supply_attrs[i].attr;
 }
diff --git a/drivers/power/reset/at91-reset.c b/drivers/power/reset/at91-reset.c
index 1b5d450..b6042f8 100644
--- a/drivers/power/reset/at91-reset.c
+++ b/drivers/power/reset/at91-reset.c
@@ -17,6 +17,7 @@
 #include <linux/of_address.h>
 #include <linux/platform_device.h>
 #include <linux/reboot.h>
+#include <asm/pgtable.h>
 
 #include <soc/at91/at91sam9_ddrsdr.h>
 #include <soc/at91/at91sam9_sdramc.h>
@@ -206,7 +207,9 @@ static int __init at91_reset_probe(struct platform_device *pdev)
 	}
 
 	match = of_match_node(at91_reset_of_match, pdev->dev.of_node);
-	at91_restart_nb.notifier_call = match->data;
+	pax_open_kernel();
+	const_cast(at91_restart_nb.notifier_call) = match->data;
+	pax_close_kernel();
 
 	sclk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(sclk))
diff --git a/drivers/powercap/powercap_sys.c b/drivers/powercap/powercap_sys.c
index 14bde0d..9391277 100644
--- a/drivers/powercap/powercap_sys.c
+++ b/drivers/powercap/powercap_sys.c
@@ -154,8 +154,77 @@ struct powercap_constraint_attr {
 	struct device_attribute name_attr;
 };
 
+static ssize_t show_constraint_name(struct device *dev,
+				struct device_attribute *dev_attr,
+				char *buf);
+
 static struct powercap_constraint_attr
-				constraint_attrs[MAX_CONSTRAINTS_PER_ZONE];
+				constraint_attrs[MAX_CONSTRAINTS_PER_ZONE] = {
+	[0 ... MAX_CONSTRAINTS_PER_ZONE - 1] = {
+		.power_limit_attr = {
+			.attr = {
+				.name	= NULL,
+				.mode	= S_IWUSR | S_IRUGO
+			},
+			.show	= show_constraint_power_limit_uw,
+			.store	= store_constraint_power_limit_uw
+		},
+
+		.time_window_attr = {
+			.attr = {
+				.name	= NULL,
+				.mode	= S_IWUSR | S_IRUGO
+			},
+			.show	= show_constraint_time_window_us,
+			.store	= store_constraint_time_window_us
+		},
+
+		.max_power_attr = {
+			.attr = {
+				.name	= NULL,
+				.mode	= S_IRUGO
+			},
+			.show	= show_constraint_max_power_uw,
+			.store	= NULL
+		},
+
+		.min_power_attr = {
+			.attr = {
+				.name	= NULL,
+				.mode	= S_IRUGO
+			},
+			.show	= show_constraint_min_power_uw,
+			.store	= NULL
+		},
+
+		.max_time_window_attr = {
+			.attr = {
+				.name	= NULL,
+				.mode	= S_IRUGO
+			},
+			.show	= show_constraint_max_time_window_us,
+			.store	= NULL
+		},
+
+		.min_time_window_attr = {
+			.attr = {
+				.name	= NULL,
+				.mode	= S_IRUGO
+			},
+			.show	= show_constraint_min_time_window_us,
+			.store	= NULL
+		},
+
+		.name_attr = {
+			.attr = {
+				.name	= NULL,
+				.mode	= S_IRUGO
+			},
+			.show	= show_constraint_name,
+			.store	= NULL
+		}
+	}
+};
 
 /* A list of powercap control_types */
 static LIST_HEAD(powercap_cntrl_list);
@@ -193,23 +262,16 @@ static ssize_t show_constraint_name(struct device *dev,
 }
 
 static int create_constraint_attribute(int id, const char *name,
-				int mode,
-				struct device_attribute *dev_attr,
-				ssize_t (*show)(struct device *,
-					struct device_attribute *, char *),
-				ssize_t (*store)(struct device *,
-					struct device_attribute *,
-				const char *, size_t)
-				)
+				struct device_attribute *dev_attr)
 {
+	name = kasprintf(GFP_KERNEL, "constraint_%d_%s", id, name);
 
-	dev_attr->attr.name = kasprintf(GFP_KERNEL, "constraint_%d_%s",
-								id, name);
-	if (!dev_attr->attr.name)
+	if (!name)
 		return -ENOMEM;
-	dev_attr->attr.mode = mode;
-	dev_attr->show = show;
-	dev_attr->store = store;
+
+	pax_open_kernel();
+	const_cast(dev_attr->attr.name) = name;
+	pax_close_kernel();
 
 	return 0;
 }
@@ -236,49 +298,31 @@ static int seed_constraint_attributes(void)
 
 	for (i = 0; i < MAX_CONSTRAINTS_PER_ZONE; ++i) {
 		ret = create_constraint_attribute(i, "power_limit_uw",
-					S_IWUSR | S_IRUGO,
-					&constraint_attrs[i].power_limit_attr,
-					show_constraint_power_limit_uw,
-					store_constraint_power_limit_uw);
+					&constraint_attrs[i].power_limit_attr);
 		if (ret)
 			goto err_alloc;
 		ret = create_constraint_attribute(i, "time_window_us",
-					S_IWUSR | S_IRUGO,
-					&constraint_attrs[i].time_window_attr,
-					show_constraint_time_window_us,
-					store_constraint_time_window_us);
+					&constraint_attrs[i].time_window_attr);
 		if (ret)
 			goto err_alloc;
-		ret = create_constraint_attribute(i, "name", S_IRUGO,
-				&constraint_attrs[i].name_attr,
-				show_constraint_name,
-				NULL);
+		ret = create_constraint_attribute(i, "name",
+				&constraint_attrs[i].name_attr);
 		if (ret)
 			goto err_alloc;
-		ret = create_constraint_attribute(i, "max_power_uw", S_IRUGO,
-				&constraint_attrs[i].max_power_attr,
-				show_constraint_max_power_uw,
-				NULL);
+		ret = create_constraint_attribute(i, "max_power_uw",
+				&constraint_attrs[i].max_power_attr);
 		if (ret)
 			goto err_alloc;
-		ret = create_constraint_attribute(i, "min_power_uw", S_IRUGO,
-				&constraint_attrs[i].min_power_attr,
-				show_constraint_min_power_uw,
-				NULL);
+		ret = create_constraint_attribute(i, "min_power_uw",
+				&constraint_attrs[i].min_power_attr);
 		if (ret)
 			goto err_alloc;
 		ret = create_constraint_attribute(i, "max_time_window_us",
-				S_IRUGO,
-				&constraint_attrs[i].max_time_window_attr,
-				show_constraint_max_time_window_us,
-				NULL);
+				&constraint_attrs[i].max_time_window_attr);
 		if (ret)
 			goto err_alloc;
 		ret = create_constraint_attribute(i, "min_time_window_us",
-				S_IRUGO,
-				&constraint_attrs[i].min_time_window_attr,
-				show_constraint_min_time_window_us,
-				NULL);
+				&constraint_attrs[i].min_time_window_attr);
 		if (ret)
 			goto err_alloc;
 
@@ -378,10 +422,12 @@ static void create_power_zone_common_attributes(
 		power_zone->zone_dev_attrs[count++] =
 					&dev_attr_max_energy_range_uj.attr;
 	if (power_zone->ops->get_energy_uj) {
+		pax_open_kernel();
 		if (power_zone->ops->reset_energy_uj)
-			dev_attr_energy_uj.attr.mode = S_IWUSR | S_IRUGO;
+			const_cast(dev_attr_energy_uj.attr.mode) = S_IWUSR | S_IRUGO;
 		else
-			dev_attr_energy_uj.attr.mode = S_IRUGO;
+			const_cast(dev_attr_energy_uj.attr.mode) = S_IRUGO;
+		pax_close_kernel();
 		power_zone->zone_dev_attrs[count++] =
 					&dev_attr_energy_uj.attr;
 	}
diff --git a/drivers/ptp/ptp_private.h b/drivers/ptp/ptp_private.h
index 9c5d414..c7900ce 100644
--- a/drivers/ptp/ptp_private.h
+++ b/drivers/ptp/ptp_private.h
@@ -51,7 +51,7 @@ struct ptp_clock {
 	struct mutex pincfg_mux; /* protect concurrent info->pin_config access */
 	wait_queue_head_t tsev_wq;
 	int defunct; /* tells readers to go away when clock is being removed */
-	struct device_attribute *pin_dev_attr;
+	device_attribute_no_const *pin_dev_attr;
 	struct attribute **pin_attr;
 	struct attribute_group pin_attr_group;
 };
diff --git a/drivers/ptp/ptp_sysfs.c b/drivers/ptp/ptp_sysfs.c
index 302e626..12579af 100644
--- a/drivers/ptp/ptp_sysfs.c
+++ b/drivers/ptp/ptp_sysfs.c
@@ -280,7 +280,7 @@ static int ptp_populate_pins(struct ptp_clock *ptp)
 		goto no_pin_attr;
 
 	for (i = 0; i < n_pins; i++) {
-		struct device_attribute *da = &ptp->pin_dev_attr[i];
+		device_attribute_no_const *da = &ptp->pin_dev_attr[i];
 		sysfs_attr_init(&da->attr);
 		da->attr.name = info->pin_config[i].name;
 		da->attr.mode = 0644;
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index fd0e4e3..2f2eba9 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -3861,7 +3861,7 @@ regulator_register(const struct regulator_desc *regulator_desc,
 	const struct regulation_constraints *constraints = NULL;
 	const struct regulator_init_data *init_data;
 	struct regulator_config *config = NULL;
-	static atomic_t regulator_no = ATOMIC_INIT(-1);
+	static atomic_unchecked_t regulator_no = ATOMIC_INIT(-1);
 	struct regulator_dev *rdev;
 	struct device *dev;
 	int ret, i;
@@ -3954,7 +3954,7 @@ regulator_register(const struct regulator_desc *regulator_desc,
 	rdev->dev.class = &regulator_class;
 	rdev->dev.parent = dev;
 	dev_set_name(&rdev->dev, "regulator.%lu",
-		    (unsigned long) atomic_inc_return(&regulator_no));
+		    (unsigned long) atomic_inc_return_unchecked(&regulator_no));
 	ret = device_register(&rdev->dev);
 	if (ret != 0) {
 		put_device(&rdev->dev);
diff --git a/drivers/regulator/max8660.c b/drivers/regulator/max8660.c
index b87f62d..34f1cdf 100644
--- a/drivers/regulator/max8660.c
+++ b/drivers/regulator/max8660.c
@@ -423,8 +423,10 @@ static int max8660_probe(struct i2c_client *client,
 		max8660->shadow_regs[MAX8660_OVER1] = 5;
 	} else {
 		/* Otherwise devices can be toggled via software */
-		max8660_dcdc_ops.enable = max8660_dcdc_enable;
-		max8660_dcdc_ops.disable = max8660_dcdc_disable;
+		pax_open_kernel();
+		const_cast(max8660_dcdc_ops.enable) = max8660_dcdc_enable;
+		const_cast(max8660_dcdc_ops.disable) = max8660_dcdc_disable;
+		pax_close_kernel();
 	}
 
 	/*
diff --git a/drivers/regulator/max8973-regulator.c b/drivers/regulator/max8973-regulator.c
index 5b75b7c..8b1bb06 100644
--- a/drivers/regulator/max8973-regulator.c
+++ b/drivers/regulator/max8973-regulator.c
@@ -658,9 +658,11 @@ static int max8973_probe(struct i2c_client *client,
 		if (!pdata->enable_ext_control) {
 			max->desc.enable_reg = MAX8973_VOUT;
 			max->desc.enable_mask = MAX8973_VOUT_ENABLE;
-			max->ops.enable = regulator_enable_regmap;
-			max->ops.disable = regulator_disable_regmap;
-			max->ops.is_enabled = regulator_is_enabled_regmap;
+			pax_open_kernel();
+			const_cast(max->ops.enable) = regulator_enable_regmap;
+			const_cast(max->ops.disable) = regulator_disable_regmap;
+			const_cast(max->ops.is_enabled) = regulator_is_enabled_regmap;
+			pax_close_kernel();
 			break;
 		}
 
@@ -688,9 +690,11 @@ static int max8973_probe(struct i2c_client *client,
 
 		max->desc.enable_reg = MAX8973_VOUT;
 		max->desc.enable_mask = MAX8973_VOUT_ENABLE;
-		max->ops.enable = regulator_enable_regmap;
-		max->ops.disable = regulator_disable_regmap;
-		max->ops.is_enabled = regulator_is_enabled_regmap;
+		pax_open_kernel();
+		const_cast(max->ops.enable) = regulator_enable_regmap;
+		const_cast(max->ops.disable) = regulator_disable_regmap;
+		const_cast(max->ops.is_enabled) = regulator_is_enabled_regmap;
+		pax_close_kernel();
 		max->ops.set_current_limit = max8973_set_current_limit;
 		max->ops.get_current_limit = max8973_get_current_limit;
 		break;
diff --git a/drivers/regulator/mc13892-regulator.c b/drivers/regulator/mc13892-regulator.c
index 0d17c92..ce5897e 100644
--- a/drivers/regulator/mc13892-regulator.c
+++ b/drivers/regulator/mc13892-regulator.c
@@ -584,10 +584,12 @@ static int mc13892_regulator_probe(struct platform_device *pdev)
 	mc13xxx_unlock(mc13892);
 
 	/* update mc13892_vcam ops */
-	memcpy(&mc13892_vcam_ops, mc13892_regulators[MC13892_VCAM].desc.ops,
+	pax_open_kernel();
+	memcpy((void *)&mc13892_vcam_ops, mc13892_regulators[MC13892_VCAM].desc.ops,
 						sizeof(struct regulator_ops));
-	mc13892_vcam_ops.set_mode = mc13892_vcam_set_mode,
-	mc13892_vcam_ops.get_mode = mc13892_vcam_get_mode,
+	const_cast(mc13892_vcam_ops.set_mode) = mc13892_vcam_set_mode,
+	const_cast(mc13892_vcam_ops.get_mode) = mc13892_vcam_get_mode,
+	pax_close_kernel();
 	mc13892_regulators[MC13892_VCAM].desc.ops = &mc13892_vcam_ops;
 
 	mc13xxx_data = mc13xxx_parse_regulators_dt(pdev, mc13892_regulators,
diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index 3d7d58a..308df86 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -327,9 +327,10 @@ void rproc_free_vring(struct rproc_vring *rvring)
  *
  * Returns 0 on success, or an appropriate error code otherwise
  */
-static int rproc_handle_vdev(struct rproc *rproc, struct fw_rsc_vdev *rsc,
+static int rproc_handle_vdev(struct rproc *rproc, void *_rsc,
 							int offset, int avail)
 {
+	struct fw_rsc_vdev *rsc = _rsc;
 	struct device *dev = &rproc->dev;
 	struct rproc_vdev *rvdev;
 	int i, ret;
@@ -404,9 +405,10 @@ free_rvdev:
  *
  * Returns 0 on success, or an appropriate error code otherwise
  */
-static int rproc_handle_trace(struct rproc *rproc, struct fw_rsc_trace *rsc,
+static int rproc_handle_trace(struct rproc *rproc, void *_rsc,
 							int offset, int avail)
 {
+	struct fw_rsc_trace *rsc = _rsc;
 	struct rproc_mem_entry *trace;
 	struct device *dev = &rproc->dev;
 	void *ptr;
@@ -484,9 +486,10 @@ static int rproc_handle_trace(struct rproc *rproc, struct fw_rsc_trace *rsc,
  * and not allow firmwares to request access to physical addresses that
  * are outside those ranges.
  */
-static int rproc_handle_devmem(struct rproc *rproc, struct fw_rsc_devmem *rsc,
+static int rproc_handle_devmem(struct rproc *rproc, void *_rsc,
 							int offset, int avail)
 {
+	struct fw_rsc_devmem *rsc = _rsc;
 	struct rproc_mem_entry *mapping;
 	struct device *dev = &rproc->dev;
 	int ret;
@@ -556,10 +559,11 @@ out:
  * pressure is important; it may have a substantial impact on performance.
  */
 static int rproc_handle_carveout(struct rproc *rproc,
-						struct fw_rsc_carveout *rsc,
+						void *_rsc,
 						int offset, int avail)
 
 {
+	struct fw_rsc_carveout *rsc = _rsc;
 	struct rproc_mem_entry *carveout, *mapping;
 	struct device *dev = &rproc->dev;
 	dma_addr_t dma;
@@ -678,9 +682,11 @@ free_carv:
 	return ret;
 }
 
-static int rproc_count_vrings(struct rproc *rproc, struct fw_rsc_vdev *rsc,
+static int rproc_count_vrings(struct rproc *rproc, void *_rsc,
 			      int offset, int avail)
 {
+	struct fw_rsc_vdev *rsc = _rsc;
+
 	/* Summarize the number of notification IDs */
 	rproc->max_notifyid += rsc->num_of_vrings;
 
@@ -692,18 +698,18 @@ static int rproc_count_vrings(struct rproc *rproc, struct fw_rsc_vdev *rsc,
  * enum fw_resource_type.
  */
 static rproc_handle_resource_t rproc_loading_handlers[RSC_LAST] = {
-	[RSC_CARVEOUT] = (rproc_handle_resource_t)rproc_handle_carveout,
-	[RSC_DEVMEM] = (rproc_handle_resource_t)rproc_handle_devmem,
-	[RSC_TRACE] = (rproc_handle_resource_t)rproc_handle_trace,
+	[RSC_CARVEOUT] = rproc_handle_carveout,
+	[RSC_DEVMEM] = rproc_handle_devmem,
+	[RSC_TRACE] = rproc_handle_trace,
 	[RSC_VDEV] = NULL, /* VDEVs were handled upon registrarion */
 };
 
 static rproc_handle_resource_t rproc_vdev_handler[RSC_LAST] = {
-	[RSC_VDEV] = (rproc_handle_resource_t)rproc_handle_vdev,
+	[RSC_VDEV] = rproc_handle_vdev,
 };
 
 static rproc_handle_resource_t rproc_count_vrings_handler[RSC_LAST] = {
-	[RSC_VDEV] = (rproc_handle_resource_t)rproc_count_vrings,
+	[RSC_VDEV] = rproc_count_vrings,
 };
 
 /* handle firmware resource entries before booting the remote processor */
diff --git a/drivers/rtc/rtc-armada38x.c b/drivers/rtc/rtc-armada38x.c
index 9a3f2a6..c19b00a 100644
--- a/drivers/rtc/rtc-armada38x.c
+++ b/drivers/rtc/rtc-armada38x.c
@@ -18,6 +18,7 @@
 #include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/rtc.h>
+#include <asm/pgtable.h>
 
 #define RTC_STATUS	    0x0
 #define RTC_STATUS_ALARM1	    BIT(0)
@@ -246,8 +247,10 @@ static __init int armada38x_rtc_probe(struct platform_device *pdev)
 		 * If there is no interrupt available then we can't
 		 * use the alarm
 		 */
-		armada38x_rtc_ops.set_alarm = NULL;
-		armada38x_rtc_ops.alarm_irq_enable = NULL;
+		pax_open_kernel();
+		const_cast(armada38x_rtc_ops.set_alarm) = NULL;
+		const_cast(armada38x_rtc_ops.alarm_irq_enable) = NULL;
+		pax_close_kernel();
 	}
 	platform_set_drvdata(pdev, rtc);
 	if (rtc->irq != -1)
diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index 84fb541..a526dd0 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -735,7 +735,9 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq)
 	hpet_rtc_timer_init();
 
 	/* export at least the first block of NVRAM */
-	nvram.size = address_space - NVRAM_OFFSET;
+	pax_open_kernel();
+	const_cast(nvram.size) = address_space - NVRAM_OFFSET;
+	pax_close_kernel();
 	retval = sysfs_create_bin_file(&dev->kobj, &nvram);
 	if (retval < 0) {
 		dev_dbg(dev, "can't create nvram file? %d\n", retval);
diff --git a/drivers/rtc/rtc-dev.c b/drivers/rtc/rtc-dev.c
index a6d9434..dc26b71 100644
--- a/drivers/rtc/rtc-dev.c
+++ b/drivers/rtc/rtc-dev.c
@@ -16,6 +16,7 @@
 #include <linux/module.h>
 #include <linux/rtc.h>
 #include <linux/sched.h>
+#include <linux/grsecurity.h>
 #include "rtc-core.h"
 
 static dev_t rtc_devt;
@@ -347,6 +348,8 @@ static long rtc_dev_ioctl(struct file *file,
 		if (copy_from_user(&tm, uarg, sizeof(tm)))
 			return -EFAULT;
 
+		gr_log_timechange();
+
 		return rtc_set_time(rtc, &tm);
 
 	case RTC_PIE_ON:
diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
index ecb7dba..d2ea086 100644
--- a/drivers/rtc/rtc-ds1307.c
+++ b/drivers/rtc/rtc-ds1307.c
@@ -111,7 +111,7 @@ struct ds1307 {
 	u8			offset; /* register's offset */
 	u8			regs[11];
 	u16			nvram_offset;
-	struct bin_attribute	*nvram;
+	bin_attribute_no_const	*nvram;
 	enum ds_type		type;
 	unsigned long		flags;
 #define HAS_NVRAM	0		/* bit 0 == sysfs file active */
diff --git a/drivers/rtc/rtc-m48t59.c b/drivers/rtc/rtc-m48t59.c
index d99a705..99654e7 100644
--- a/drivers/rtc/rtc-m48t59.c
+++ b/drivers/rtc/rtc-m48t59.c
@@ -485,7 +485,9 @@ static int m48t59_rtc_probe(struct platform_device *pdev)
 	if (IS_ERR(m48t59->rtc))
 		return PTR_ERR(m48t59->rtc);
 
-	m48t59_nvram_attr.size = pdata->offset;
+	pax_open_kernel();
+	const_cast(m48t59_nvram_attr.size) = pdata->offset;
+	pax_close_kernel();
 
 	ret = sysfs_create_bin_file(&pdev->dev.kobj, &m48t59_nvram_attr);
 	if (ret)
diff --git a/drivers/rtc/rtc-rv8803.c b/drivers/rtc/rtc-rv8803.c
index f623038..c22e72a 100644
--- a/drivers/rtc/rtc-rv8803.c
+++ b/drivers/rtc/rtc-rv8803.c
@@ -422,6 +422,15 @@ static struct rtc_class_ops rv8803_rtc_ops = {
 	.ioctl = rv8803_ioctl,
 };
 
+static struct rtc_class_ops rv8803_rtc_alarm_ops = {
+	.read_time = rv8803_get_time,
+	.set_time = rv8803_set_time,
+	.ioctl = rv8803_ioctl,
+	.read_alarm = rv8803_get_alarm,
+	.set_alarm = rv8803_set_alarm,
+	.alarm_irq_enable = rv8803_alarm_irq_enable,
+};
+
 static int rv8803_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
@@ -474,15 +483,11 @@ static int rv8803_probe(struct i2c_client *client,
 		if (err) {
 			dev_warn(&client->dev, "unable to request IRQ, alarms disabled\n");
 			client->irq = 0;
-		} else {
-			rv8803_rtc_ops.read_alarm = rv8803_get_alarm;
-			rv8803_rtc_ops.set_alarm = rv8803_set_alarm;
-			rv8803_rtc_ops.alarm_irq_enable = rv8803_alarm_irq_enable;
 		}
 	}
 
 	rv8803->rtc = devm_rtc_device_register(&client->dev, client->name,
-					       &rv8803_rtc_ops, THIS_MODULE);
+					       client->irq > 0 ? &rv8803_rtc_alarm_ops : &rv8803_rtc_ops, THIS_MODULE);
 	if (IS_ERR(rv8803->rtc)) {
 		dev_err(&client->dev, "unable to register the class device\n");
 		return PTR_ERR(rv8803->rtc);
diff --git a/drivers/rtc/rtc-rx8010.c b/drivers/rtc/rtc-rx8010.c
index 772d221..3a56e42 100644
--- a/drivers/rtc/rtc-rx8010.c
+++ b/drivers/rtc/rtc-rx8010.c
@@ -489,9 +489,11 @@ static int rx8010_probe(struct i2c_client *client,
 			dev_err(&client->dev, "unable to request IRQ\n");
 			client->irq = 0;
 		} else {
-			rx8010_rtc_ops.read_alarm = rx8010_read_alarm;
-			rx8010_rtc_ops.set_alarm = rx8010_set_alarm;
-			rx8010_rtc_ops.alarm_irq_enable = rx8010_alarm_irq_enable;
+			pax_open_kernel();
+			const_cast(rx8010_rtc_ops.read_alarm) = rx8010_read_alarm;
+			const_cast(rx8010_rtc_ops.set_alarm) = rx8010_set_alarm;
+			const_cast(rx8010_rtc_ops.alarm_irq_enable) = rx8010_alarm_irq_enable;
+			pax_close_kernel();
 		}
 	}
 
diff --git a/drivers/rtc/rtc-test.c b/drivers/rtc/rtc-test.c
index 3a2da4c..1d1d4b1 100644
--- a/drivers/rtc/rtc-test.c
+++ b/drivers/rtc/rtc-test.c
@@ -112,8 +112,10 @@ static int test_probe(struct platform_device *plat_dev)
 	struct rtc_device *rtc;
 
 	if (test_mmss64) {
-		test_rtc_ops.set_mmss64 = test_rtc_set_mmss64;
-		test_rtc_ops.set_mmss = NULL;
+		pax_open_kernel();
+		const_cast(test_rtc_ops.set_mmss64) = test_rtc_set_mmss64;
+		const_cast(test_rtc_ops.set_mmss) = NULL;
+		pax_close_kernel();
 	}
 
 	rtc = devm_rtc_device_register(&plat_dev->dev, "test",
diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index 7dfd0fa..5535b6b 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -772,6 +772,11 @@ static int aac_probe_container_callback1(struct scsi_cmnd * scsicmd)
 	return 0;
 }
 
+static void aac_probe_container_scsi_done(struct scsi_cmnd * scsicmd)
+{
+	scsicmd->device = NULL;
+}
+
 int aac_probe_container(struct aac_dev *dev, int cid)
 {
 	struct scsi_cmnd *scsicmd = kmalloc(sizeof(*scsicmd), GFP_KERNEL);
@@ -784,7 +789,7 @@ int aac_probe_container(struct aac_dev *dev, int cid)
 		return -ENOMEM;
 	}
 	scsicmd->list.next = NULL;
-	scsicmd->scsi_done = (void (*)(struct scsi_cmnd*))aac_probe_container_callback1;
+	scsicmd->scsi_done = aac_probe_container_scsi_done;
 
 	scsicmd->device = scsidev;
 	scsidev->sdev_state = 0;
diff --git a/drivers/scsi/aic7xxx/aic79xx.h b/drivers/scsi/aic7xxx/aic79xx.h
index d47b527..f2c4a89 100644
--- a/drivers/scsi/aic7xxx/aic79xx.h
+++ b/drivers/scsi/aic7xxx/aic79xx.h
@@ -1046,7 +1046,7 @@ typedef enum {
 
 typedef uint8_t ahd_mode_state;
 
-typedef void ahd_callback_t (void *);
+typedef void ahd_linux_callback_t (u_long);
 
 struct ahd_completion
 {
diff --git a/drivers/scsi/aic7xxx/aic79xx_core.c b/drivers/scsi/aic7xxx/aic79xx_core.c
index 109e2c9..7d3c9b5 100644
--- a/drivers/scsi/aic7xxx/aic79xx_core.c
+++ b/drivers/scsi/aic7xxx/aic79xx_core.c
@@ -207,7 +207,7 @@ static void		ahd_add_scb_to_free_list(struct ahd_softc *ahd,
 static u_int		ahd_rem_wscb(struct ahd_softc *ahd, u_int scbid,
 				     u_int prev, u_int next, u_int tid);
 static void		ahd_reset_current_bus(struct ahd_softc *ahd);
-static ahd_callback_t	ahd_stat_timer;
+static ahd_linux_callback_t	ahd_stat_timer;
 #ifdef AHD_DUMP_SEQ
 static void		ahd_dumpseq(struct ahd_softc *ahd);
 #endif
@@ -7041,10 +7041,9 @@ static const char *termstat_strings[] = {
 /***************************** Timer Facilities *******************************/
 #define ahd_timer_init init_timer
 #define ahd_timer_stop del_timer_sync
-typedef void ahd_linux_callback_t (u_long);
 
 static void
-ahd_timer_reset(ahd_timer_t *timer, int usec, ahd_callback_t *func, void *arg)
+ahd_timer_reset(ahd_timer_t *timer, int usec, ahd_linux_callback_t *func, void *arg)
 {
 	struct ahd_softc *ahd;
 
@@ -7052,7 +7051,7 @@ ahd_timer_reset(ahd_timer_t *timer, int usec, ahd_callback_t *func, void *arg)
 	del_timer(timer);
 	timer->data = (u_long)arg;
 	timer->expires = jiffies + (usec * HZ)/1000000;
-	timer->function = (ahd_linux_callback_t*)func;
+	timer->function = func;
 	add_timer(timer);
 }
 
@@ -8878,9 +8877,9 @@ ahd_reset_channel(struct ahd_softc *ahd, char channel, int initiate_reset)
 
 /**************************** Statistics Processing ***************************/
 static void
-ahd_stat_timer(void *arg)
+ahd_stat_timer(unsigned long arg)
 {
-	struct	ahd_softc *ahd = arg;
+	struct	ahd_softc *ahd = (struct ahd_softc *)arg;
 	u_long	s;
 	int	enint_coal;
 	
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index f05e773..b48c418 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -5465,7 +5465,7 @@ beiscsi_hw_health_check(struct work_struct *work)
 
 
 static pci_ers_result_t beiscsi_eeh_err_detected(struct pci_dev *pdev,
-		pci_channel_state_t state)
+		enum pci_channel_state state)
 {
 	struct beiscsi_hba *phba = NULL;
 
diff --git a/drivers/scsi/bfa/bfa.h b/drivers/scsi/bfa/bfa.h
index 0e119d8..1bf8a49 100644
--- a/drivers/scsi/bfa/bfa.h
+++ b/drivers/scsi/bfa/bfa.h
@@ -225,8 +225,10 @@ struct bfa_faa_args_s {
 	bfa_boolean_t		busy;
 };
 
+enum iocfc_event;
+
 struct bfa_iocfc_s {
-	bfa_fsm_t		fsm;
+	void (*fsm)(struct bfa_iocfc_s *, enum iocfc_event);
 	struct bfa_s		*bfa;
 	struct bfa_iocfc_cfg_s	cfg;
 	u32		req_cq_pi[BFI_IOC_MAX_CQS];
diff --git a/drivers/scsi/bfa/bfa_core.c b/drivers/scsi/bfa/bfa_core.c
index 7209afa..2450c125 100644
--- a/drivers/scsi/bfa/bfa_core.c
+++ b/drivers/scsi/bfa/bfa_core.c
@@ -1919,15 +1919,13 @@ bfa_comp_process(struct bfa_s *bfa, struct list_head *comp_q)
 	struct list_head		*qe;
 	struct list_head		*qen;
 	struct bfa_cb_qe_s	*hcb_qe;
-	bfa_cb_cbfn_status_t	cbfn;
 
 	list_for_each_safe(qe, qen, comp_q) {
 		hcb_qe = (struct bfa_cb_qe_s *) qe;
 		if (hcb_qe->pre_rmv) {
 			/* qe is invalid after return, dequeue before cbfn() */
 			list_del(qe);
-			cbfn = (bfa_cb_cbfn_status_t)(hcb_qe->cbfn);
-			cbfn(hcb_qe->cbarg, hcb_qe->fw_status);
+			hcb_qe->cbfn(hcb_qe->cbarg, hcb_qe->fw_status);
 		} else
 			hcb_qe->cbfn(hcb_qe->cbarg, BFA_TRUE);
 	}
diff --git a/drivers/scsi/bfa/bfa_cs.h b/drivers/scsi/bfa/bfa_cs.h
index df6760c..3b22f4d 100644
--- a/drivers/scsi/bfa/bfa_cs.h
+++ b/drivers/scsi/bfa/bfa_cs.h
@@ -184,8 +184,6 @@ bfa_q_is_on_q_func(struct list_head *q, struct list_head *qe)
  * @ BFA state machine interfaces
  */
 
-typedef void (*bfa_sm_t)(void *sm, int event);
-
 /*
  * oc - object class eg. bfa_ioc
  * st - state, eg. reset
@@ -195,20 +193,75 @@ typedef void (*bfa_sm_t)(void *sm, int event);
 #define bfa_sm_state_decl(oc, st, otype, etype)		\
 	static void oc ## _sm_ ## st(otype * fsm, etype event)
 
-#define bfa_sm_set_state(_sm, _state)	((_sm)->sm = (bfa_sm_t)(_state))
+#define bfa_sm_set_state(_sm, _state)	((_sm)->sm = (_state))
 #define bfa_sm_send_event(_sm, _event)	((_sm)->sm((_sm), (_event)))
 #define bfa_sm_get_state(_sm)		((_sm)->sm)
-#define bfa_sm_cmp_state(_sm, _state)	((_sm)->sm == (bfa_sm_t)(_state))
+#define bfa_sm_cmp_state(_sm, _state)	((_sm)->sm == (_state))
 
 /*
  * For converting from state machine function to state encoding.
  */
-struct bfa_sm_table_s {
-	bfa_sm_t	sm;	/*  state machine function	*/
+struct bfa_iocpf_s;
+enum iocpf_event;
+typedef void (*bfa_fsm_iocpf_t)(struct bfa_iocpf_s *, enum iocpf_event);
+
+struct iocpf_sm_table_s {
+	bfa_fsm_iocpf_t sm;	/*  state machine function	*/
 	int		state;	/*  state machine encoding	*/
 	char		*name;	/*  state name for display	*/
 };
-#define BFA_SM(_sm)	((bfa_sm_t)(_sm))
+
+struct bfa_ioc_s;
+enum ioc_event;
+typedef void (*bfa_fsm_ioc_t)(struct bfa_ioc_s *, enum ioc_event);
+
+struct ioc_sm_table_s {
+	bfa_fsm_ioc_t sm;	/*  state machine function	*/
+	int		state;	/*  state machine encoding	*/
+	char		*name;	/*  state name for display	*/
+};
+
+struct bfa_fcs_rport_s;
+enum rport_event;
+typedef void(*bfa_fcs_rport_t)(struct bfa_fcs_rport_s *, enum rport_event);
+
+struct rport_sm_table_s {
+	bfa_fcs_rport_t sm;	/*  state machine function	*/
+	int		state;	/*  state machine encoding	*/
+	char		*name;	/*  state name for display	*/
+};
+
+struct bfa_fcs_vport_s;
+enum bfa_fcs_vport_event;
+typedef void(*bfa_fcs_vport_t)(struct bfa_fcs_vport_s *, enum bfa_fcs_vport_event);
+
+struct vport_sm_table_s {
+	bfa_fcs_vport_t sm;	/*  state machine function	*/
+	int		state;	/*  state machine encoding	*/
+	char		*name;	/*  state name for display	*/
+};
+
+struct bfa_fcs_itnim_s;
+enum bfa_fcs_itnim_event;
+typedef void(*bfa_fcs_itnim_t)(struct bfa_fcs_itnim_s *, enum bfa_fcs_itnim_event);
+
+struct itnim_sm_table_s {
+	bfa_fcs_itnim_t sm;	/*  state machine function	*/
+	int		state;	/*  state machine encoding	*/
+	char		*name;	/*  state name for display	*/
+};
+
+struct bfa_fcport_s;
+enum bfa_fcport_sm_event;
+typedef void(*bfa_fcport_t)(struct bfa_fcport_s *, enum bfa_fcport_sm_event);
+
+struct fcport_sm_table_s {
+	bfa_fcport_t sm;	/*  state machine function	*/
+	int		state;	/*  state machine encoding	*/
+	char		*name;	/*  state name for display	*/
+};
+
+#define BFA_SM(_sm)	(_sm)
 
 /*
  * State machine with entry actions.
@@ -226,17 +279,66 @@ typedef void (*bfa_fsm_t)(void *fsm, int event);
 	static void oc ## _sm_ ## st ## _entry(otype * fsm)
 
 #define bfa_fsm_set_state(_fsm, _state) do {	\
-	(_fsm)->fsm = (bfa_fsm_t)(_state);      \
+	(_fsm)->fsm = (_state);      \
 	_state ## _entry(_fsm);      \
 } while (0)
 
 #define bfa_fsm_send_event(_fsm, _event)	((_fsm)->fsm((_fsm), (_event)))
 #define bfa_fsm_get_state(_fsm)			((_fsm)->fsm)
-#define bfa_fsm_cmp_state(_fsm, _state)		\
-	((_fsm)->fsm == (bfa_fsm_t)(_state))
+#define bfa_fsm_cmp_state(_fsm, _state)		((_fsm)->fsm == (_state))
 
 static inline int
-bfa_sm_to_state(struct bfa_sm_table_s *smt, bfa_sm_t sm)
+iocpf_sm_to_state(struct iocpf_sm_table_s *smt, bfa_fsm_iocpf_t sm)
+{
+	int	i = 0;
+
+	while (smt[i].sm && smt[i].sm != sm)
+		i++;
+	return smt[i].state;
+}
+
+static inline int
+ioc_sm_to_state(struct ioc_sm_table_s *smt, bfa_fsm_ioc_t sm)
+{
+	int	i = 0;
+
+	while (smt[i].sm && smt[i].sm != sm)
+		i++;
+	return smt[i].state;
+}
+
+static inline int
+rport_sm_to_state(struct rport_sm_table_s *smt, bfa_fcs_rport_t sm)
+{
+	int	i = 0;
+
+	while (smt[i].sm && smt[i].sm != sm)
+		i++;
+	return smt[i].state;
+}
+
+static inline int
+vport_sm_to_state(struct vport_sm_table_s *smt, bfa_fcs_vport_t sm)
+{
+	int	i = 0;
+
+	while (smt[i].sm && smt[i].sm != sm)
+		i++;
+	return smt[i].state;
+}
+
+static inline int
+itnim_sm_to_state(struct itnim_sm_table_s *smt, bfa_fcs_itnim_t sm)
+{
+	int	i = 0;
+
+	while (smt[i].sm && smt[i].sm != sm)
+		i++;
+	return smt[i].state;
+}
+
+static inline int
+fcport_sm_to_state(struct fcport_sm_table_s *smt, bfa_fcport_t sm)
 {
 	int	i = 0;
 
diff --git a/drivers/scsi/bfa/bfa_fcpim.h b/drivers/scsi/bfa/bfa_fcpim.h
index e93921d..ee6b4c0 100644
--- a/drivers/scsi/bfa/bfa_fcpim.h
+++ b/drivers/scsi/bfa/bfa_fcpim.h
@@ -37,7 +37,7 @@ struct bfa_iotag_s {
 
 struct bfa_itn_s {
 	bfa_isr_func_t isr;
-};
+} __no_const;
 
 void bfa_itn_create(struct bfa_s *bfa, struct bfa_rport_s *rport,
 		void (*isr)(struct bfa_s *bfa, struct bfi_msg_s *m));
@@ -165,9 +165,11 @@ struct bfa_fcp_mod_s {
 /*
  * BFA IO (initiator mode)
  */
+enum bfa_ioim_event;
+
 struct bfa_ioim_s {
 	struct list_head	qe;		/*  queue elememt	*/
-	bfa_sm_t		sm;		/*  BFA ioim state machine */
+	void (*sm)(struct bfa_ioim_s *, enum bfa_ioim_event);/*  BFA ioim state machine */
 	struct bfa_s		*bfa;		/*  BFA module	*/
 	struct bfa_fcpim_s	*fcpim;		/*  parent fcpim module */
 	struct bfa_itnim_s	*itnim;		/*  i-t-n nexus for this IO  */
@@ -197,9 +199,11 @@ struct bfa_ioim_sp_s {
 /*
  * BFA Task management command (initiator mode)
  */
+enum bfa_tskim_event;
+
 struct bfa_tskim_s {
 	struct list_head	qe;
-	bfa_sm_t		sm;
+	void (*sm)(struct bfa_tskim_s *, enum bfa_tskim_event);
 	struct bfa_s		*bfa;	/*  BFA module  */
 	struct bfa_fcpim_s	*fcpim;	/*  parent fcpim module	*/
 	struct bfa_itnim_s	*itnim;	/*  i-t-n nexus for this IO  */
@@ -219,9 +223,11 @@ struct bfa_tskim_s {
 /*
  * BFA i-t-n (initiator mode)
  */
+enum bfa_itnim_event;
+
 struct bfa_itnim_s {
 	struct list_head	qe;	/*  queue element	*/
-	bfa_sm_t		sm;	/*  i-t-n im BFA state machine  */
+	void (*sm)(struct bfa_itnim_s *, enum bfa_itnim_event);/*  i-t-n im BFA state machine  */
 	struct bfa_s		*bfa;	/*  bfa instance	*/
 	struct bfa_rport_s	*rport;	/*  bfa rport	*/
 	void			*ditn;	/*  driver i-t-n structure	*/
diff --git a/drivers/scsi/bfa/bfa_fcs.c b/drivers/scsi/bfa/bfa_fcs.c
index 1e7e139..c2031dd 100644
--- a/drivers/scsi/bfa/bfa_fcs.c
+++ b/drivers/scsi/bfa/bfa_fcs.c
@@ -39,10 +39,21 @@ struct bfa_fcs_mod_s {
 #define BFA_FCS_MODULE(_mod) { _mod ## _modinit, _mod ## _modexit }
 
 static struct bfa_fcs_mod_s fcs_modules[] = {
-	{ bfa_fcs_port_attach, NULL, NULL },
-	{ bfa_fcs_uf_attach, NULL, NULL },
-	{ bfa_fcs_fabric_attach, bfa_fcs_fabric_modinit,
-	  bfa_fcs_fabric_modexit },
+	{
+		.attach = bfa_fcs_port_attach,
+		.modinit = NULL,
+		.modexit = NULL
+	},
+	{
+		.attach = bfa_fcs_uf_attach,
+		.modinit = NULL,
+		.modexit = NULL
+	},
+	{
+		.attach = bfa_fcs_fabric_attach,
+		.modinit = bfa_fcs_fabric_modinit,
+		.modexit = bfa_fcs_fabric_modexit
+	},
 };
 
 /*
diff --git a/drivers/scsi/bfa/bfa_fcs.h b/drivers/scsi/bfa/bfa_fcs.h
index 06dc215..543c5aa 100644
--- a/drivers/scsi/bfa/bfa_fcs.h
+++ b/drivers/scsi/bfa/bfa_fcs.h
@@ -67,8 +67,10 @@ struct bfa_fcs_s;
 #define BFA_FCS_PID_IS_WKA(pid)  ((bfa_ntoh3b(pid) > 0xFFF000) ?  1 : 0)
 #define BFA_FCS_MAX_RPORT_LOGINS 1024
 
+enum vport_ns_event;
+
 struct bfa_fcs_lport_ns_s {
-	bfa_sm_t        sm;		/*  state machine */
+	void (*sm)(struct bfa_fcs_lport_ns_s *, enum vport_ns_event);/*  state machine */
 	struct bfa_timer_s timer;
 	struct bfa_fcs_lport_s *port;	/*  parent port */
 	struct bfa_fcxp_s *fcxp;
@@ -77,18 +79,20 @@ struct bfa_fcs_lport_ns_s {
 	u8	num_rsnn_nn_retries;
 };
 
+enum port_scn_event;
 
 struct bfa_fcs_lport_scn_s {
-	bfa_sm_t        sm;		/*  state machine */
+	void (*sm)(struct bfa_fcs_lport_scn_s *, enum port_scn_event);/*  state machine */
 	struct bfa_timer_s timer;
 	struct bfa_fcs_lport_s *port;	/*  parent port */
 	struct bfa_fcxp_s *fcxp;
 	struct bfa_fcxp_wqe_s fcxp_wqe;
 };
 
+enum port_fdmi_event;
 
 struct bfa_fcs_lport_fdmi_s {
-	bfa_sm_t        sm;		/*  state machine */
+	void (*sm)(struct bfa_fcs_lport_fdmi_s *, enum port_fdmi_event);/*  state machine */
 	struct bfa_timer_s timer;
 	struct bfa_fcs_lport_ms_s *ms;	/*  parent ms */
 	struct bfa_fcxp_s *fcxp;
@@ -97,9 +101,10 @@ struct bfa_fcs_lport_fdmi_s {
 	u8	rsvd[3];
 };
 
+enum port_ms_event;
 
 struct bfa_fcs_lport_ms_s {
-	bfa_sm_t        sm;		/*  state machine */
+	void (*sm)(struct bfa_fcs_lport_ms_s *, enum port_ms_event);/*  state machine */
 	struct bfa_timer_s timer;
 	struct bfa_fcs_lport_s *port;	/*  parent port */
 	struct bfa_fcxp_s *fcxp;
@@ -139,10 +144,11 @@ union bfa_fcs_lport_topo_u {
 	struct bfa_fcs_lport_n2n_s pn2n;
 };
 
+enum bfa_fcs_lport_event;
 
 struct bfa_fcs_lport_s {
 	struct list_head         qe;	/*  used by port/vport */
-	bfa_sm_t               sm;	/*  state machine */
+	void (*sm)(struct bfa_fcs_lport_s *, enum bfa_fcs_lport_event);	/*  state machine */
 	struct bfa_fcs_fabric_s *fabric;	/*  parent fabric */
 	struct bfa_lport_cfg_s  port_cfg;	/*  port configuration */
 	struct bfa_timer_s link_timer;	/*  timer for link offline */
@@ -179,10 +185,11 @@ enum bfa_fcs_fabric_type {
 	BFA_FCS_FABRIC_LOOP = 3,
 };
 
+enum bfa_fcs_fabric_event;
 
 struct bfa_fcs_fabric_s {
 	struct list_head   qe;		/*  queue element */
-	bfa_sm_t	 sm;		/*  state machine */
+	void (*sm)(struct bfa_fcs_fabric_s *, enum bfa_fcs_fabric_event); /*  state machine */
 	struct bfa_fcs_s *fcs;		/*  FCS instance */
 	struct bfa_fcs_lport_s  bport;	/*  base logical port */
 	enum bfa_fcs_fabric_type fab_type; /*  fabric type */
@@ -355,9 +362,11 @@ void            bfa_fcs_lport_scn_process_rscn(struct bfa_fcs_lport_s *port,
 					      struct fchs_s *rx_frame, u32 len);
 void		bfa_fcs_lport_lip_scn_online(bfa_fcs_lport_t *port);
 
+enum bfa_fcs_vport_event;
+
 struct bfa_fcs_vport_s {
 	struct list_head		qe;		/*  queue elem	*/
-	bfa_sm_t		sm;		/*  state machine	*/
+	void (*sm)(struct bfa_fcs_vport_s *, enum bfa_fcs_vport_event);/*  state machine	*/
 	bfa_fcs_lport_t		lport;		/*  logical port	*/
 	struct bfa_timer_s	timer;
 	struct bfad_vport_s	*vport_drv;	/*  Driver private	*/
@@ -409,8 +418,10 @@ struct bfa_fcs_tin_s;
 struct bfa_fcs_iprp_s;
 
 /* Rport Features (RPF) */
+enum rpf_event;
+
 struct bfa_fcs_rpf_s {
-	bfa_sm_t	sm;	/*  state machine */
+	void (*sm)(struct bfa_fcs_rpf_s *, enum rpf_event); /*  state machine */
 	struct bfa_fcs_rport_s *rport;	/*  parent rport */
 	struct bfa_timer_s	timer;	/*  general purpose timer */
 	struct bfa_fcxp_s	*fcxp;	/*  FCXP needed for discarding */
@@ -425,6 +436,8 @@ struct bfa_fcs_rpf_s {
 	 */
 };
 
+enum rport_event;
+
 struct bfa_fcs_rport_s {
 	struct list_head	qe;	/*  used by port/vport */
 	struct bfa_fcs_lport_s *port;	/*  parent FCS port */
@@ -441,7 +454,7 @@ struct bfa_fcs_rport_s {
 	wwn_t	pwwn;	/*  port wwn of rport */
 	wwn_t	nwwn;	/*  node wwn of rport */
 	struct bfa_rport_symname_s psym_name; /*  port symbolic name  */
-	bfa_sm_t	sm;		/*  state machine */
+	void (*sm)(struct bfa_fcs_rport_s *, enum rport_event); /*  state machine */
 	struct bfa_timer_s timer;	/*  general purpose timer */
 	struct bfa_fcs_itnim_s *itnim;	/*  ITN initiator mode role */
 	struct bfa_fcs_tin_s *tin;	/*  ITN initiator mode role */
@@ -502,9 +515,10 @@ void  bfa_fcs_rpf_rport_offline(struct bfa_fcs_rport_s *rport);
  * forward declarations
  */
 struct bfad_itnim_s;
+enum bfa_fcs_itnim_event;
 
 struct bfa_fcs_itnim_s {
-	bfa_sm_t		sm;		/*  state machine */
+	void (*sm)(struct bfa_fcs_itnim_s *, enum bfa_fcs_itnim_event);/*  state machine */
 	struct bfa_fcs_rport_s	*rport;		/*  parent remote rport  */
 	struct bfad_itnim_s	*itnim_drv;	/*  driver peer instance */
 	struct bfa_fcs_s	*fcs;		/*  fcs instance	*/
diff --git a/drivers/scsi/bfa/bfa_fcs_fcpim.c b/drivers/scsi/bfa/bfa_fcs_fcpim.c
index 4f089d7..89b3d8e 100644
--- a/drivers/scsi/bfa/bfa_fcs_fcpim.c
+++ b/drivers/scsi/bfa/bfa_fcs_fcpim.c
@@ -60,7 +60,7 @@ static void	bfa_fcs_itnim_sm_hcb_offline(struct bfa_fcs_itnim_s *itnim,
 static void	bfa_fcs_itnim_sm_initiator(struct bfa_fcs_itnim_s *itnim,
 					   enum bfa_fcs_itnim_event event);
 
-static struct bfa_sm_table_s itnim_sm_table[] = {
+static struct itnim_sm_table_s itnim_sm_table[] = {
 	{BFA_SM(bfa_fcs_itnim_sm_offline), BFA_ITNIM_OFFLINE},
 	{BFA_SM(bfa_fcs_itnim_sm_prli_send), BFA_ITNIM_PRLI_SEND},
 	{BFA_SM(bfa_fcs_itnim_sm_prli), BFA_ITNIM_PRLI_SENT},
@@ -672,7 +672,7 @@ bfa_status_t
 bfa_fcs_itnim_get_online_state(struct bfa_fcs_itnim_s *itnim)
 {
 	bfa_trc(itnim->fcs, itnim->rport->pid);
-	switch (bfa_sm_to_state(itnim_sm_table, itnim->sm)) {
+	switch (itnim_sm_to_state(itnim_sm_table, itnim->sm)) {
 	case BFA_ITNIM_ONLINE:
 	case BFA_ITNIM_INITIATIOR:
 		return BFA_STATUS_OK;
@@ -772,7 +772,7 @@ bfa_fcs_itnim_attr_get(struct bfa_fcs_lport_s *port, wwn_t rpwwn,
 	if (itnim == NULL)
 		return BFA_STATUS_NO_FCPIM_NEXUS;
 
-	attr->state	    = bfa_sm_to_state(itnim_sm_table, itnim->sm);
+	attr->state	    = itnim_sm_to_state(itnim_sm_table, itnim->sm);
 	attr->retry	    = itnim->seq_rec;
 	attr->rec_support   = itnim->rec_support;
 	attr->conf_comp	    = itnim->conf_comp;
diff --git a/drivers/scsi/bfa/bfa_fcs_lport.c b/drivers/scsi/bfa/bfa_fcs_lport.c
index 7733ad5..11f32d1 100644
--- a/drivers/scsi/bfa/bfa_fcs_lport.c
+++ b/drivers/scsi/bfa/bfa_fcs_lport.c
@@ -90,15 +90,26 @@ static struct {
 	void		(*offline) (struct bfa_fcs_lport_s *port);
 } __port_action[] = {
 	{
-	bfa_fcs_lport_unknown_init, bfa_fcs_lport_unknown_online,
-			bfa_fcs_lport_unknown_offline}, {
-	bfa_fcs_lport_fab_init, bfa_fcs_lport_fab_online,
-			bfa_fcs_lport_fab_offline}, {
-	bfa_fcs_lport_n2n_init, bfa_fcs_lport_n2n_online,
-			bfa_fcs_lport_n2n_offline}, {
-	bfa_fcs_lport_loop_init, bfa_fcs_lport_loop_online,
-			bfa_fcs_lport_loop_offline},
-	};
+		.init = bfa_fcs_lport_unknown_init,
+		.online = bfa_fcs_lport_unknown_online,
+		.offline = bfa_fcs_lport_unknown_offline
+	},
+	{
+		.init = bfa_fcs_lport_fab_init,
+		.online = bfa_fcs_lport_fab_online,
+		.offline = bfa_fcs_lport_fab_offline
+	},
+	{
+		.init = bfa_fcs_lport_n2n_init,
+		.online = bfa_fcs_lport_n2n_online,
+		.offline = bfa_fcs_lport_n2n_offline
+	},
+	{
+		.init = bfa_fcs_lport_loop_init,
+		.online = bfa_fcs_lport_loop_online,
+		.offline = bfa_fcs_lport_loop_offline
+	},
+};
 
 /*
  *  fcs_port_sm FCS logical port state machine
@@ -6040,7 +6051,7 @@ static void	bfa_fcs_vport_sm_stopping(struct bfa_fcs_vport_s *vport,
 static void	bfa_fcs_vport_sm_logo_for_stop(struct bfa_fcs_vport_s *vport,
 					enum bfa_fcs_vport_event event);
 
-static struct bfa_sm_table_s  vport_sm_table[] = {
+static struct vport_sm_table_s vport_sm_table[] = {
 	{BFA_SM(bfa_fcs_vport_sm_uninit), BFA_FCS_VPORT_UNINIT},
 	{BFA_SM(bfa_fcs_vport_sm_created), BFA_FCS_VPORT_CREATED},
 	{BFA_SM(bfa_fcs_vport_sm_offline), BFA_FCS_VPORT_OFFLINE},
@@ -6871,7 +6882,7 @@ bfa_fcs_vport_get_attr(struct bfa_fcs_vport_s *vport,
 	memset(attr, 0, sizeof(struct bfa_vport_attr_s));
 
 	bfa_fcs_lport_get_attr(&vport->lport, &attr->port_attr);
-	attr->vport_state = bfa_sm_to_state(vport_sm_table, vport->sm);
+	attr->vport_state = vport_sm_to_state(vport_sm_table, vport->sm);
 }
 
 
diff --git a/drivers/scsi/bfa/bfa_fcs_rport.c b/drivers/scsi/bfa/bfa_fcs_rport.c
index de50349..6d676be 100644
--- a/drivers/scsi/bfa/bfa_fcs_rport.c
+++ b/drivers/scsi/bfa/bfa_fcs_rport.c
@@ -144,7 +144,7 @@ static void	bfa_fcs_rport_sm_fc4_off_delete(struct bfa_fcs_rport_s *rport,
 static void	bfa_fcs_rport_sm_delete_pending(struct bfa_fcs_rport_s *rport,
 						enum rport_event event);
 
-static struct bfa_sm_table_s rport_sm_table[] = {
+static struct rport_sm_table_s rport_sm_table[] = {
 	{BFA_SM(bfa_fcs_rport_sm_uninit), BFA_RPORT_UNINIT},
 	{BFA_SM(bfa_fcs_rport_sm_plogi_sending), BFA_RPORT_PLOGI},
 	{BFA_SM(bfa_fcs_rport_sm_plogiacc_sending), BFA_RPORT_ONLINE},
@@ -2980,7 +2980,7 @@ bfa_fcs_rport_send_ls_rjt(struct bfa_fcs_rport_s *rport, struct fchs_s *rx_fchs,
 int
 bfa_fcs_rport_get_state(struct bfa_fcs_rport_s *rport)
 {
-	return bfa_sm_to_state(rport_sm_table, rport->sm);
+	return rport_sm_to_state(rport_sm_table, rport->sm);
 }
 
 
diff --git a/drivers/scsi/bfa/bfa_ioc.c b/drivers/scsi/bfa/bfa_ioc.c
index a1ada4a..6ed9ba2 100644
--- a/drivers/scsi/bfa/bfa_ioc.c
+++ b/drivers/scsi/bfa/bfa_ioc.c
@@ -148,7 +148,7 @@ bfa_fsm_state_decl(bfa_ioc, disabling, struct bfa_ioc_s, enum ioc_event);
 bfa_fsm_state_decl(bfa_ioc, disabled, struct bfa_ioc_s, enum ioc_event);
 bfa_fsm_state_decl(bfa_ioc, hwfail, struct bfa_ioc_s, enum ioc_event);
 
-static struct bfa_sm_table_s ioc_sm_table[] = {
+static struct ioc_sm_table_s ioc_sm_table[] = {
 	{BFA_SM(bfa_ioc_sm_uninit), BFA_IOC_UNINIT},
 	{BFA_SM(bfa_ioc_sm_reset), BFA_IOC_RESET},
 	{BFA_SM(bfa_ioc_sm_enabling), BFA_IOC_ENABLING},
@@ -236,7 +236,7 @@ bfa_fsm_state_decl(bfa_iocpf, disabling_sync, struct bfa_iocpf_s,
 						enum iocpf_event);
 bfa_fsm_state_decl(bfa_iocpf, disabled, struct bfa_iocpf_s, enum iocpf_event);
 
-static struct bfa_sm_table_s iocpf_sm_table[] = {
+static struct iocpf_sm_table_s iocpf_sm_table[] = {
 	{BFA_SM(bfa_iocpf_sm_reset), BFA_IOCPF_RESET},
 	{BFA_SM(bfa_iocpf_sm_fwcheck), BFA_IOCPF_FWMISMATCH},
 	{BFA_SM(bfa_iocpf_sm_mismatch), BFA_IOCPF_FWMISMATCH},
@@ -2830,12 +2830,12 @@ enum bfa_ioc_state
 bfa_ioc_get_state(struct bfa_ioc_s *ioc)
 {
 	enum bfa_iocpf_state iocpf_st;
-	enum bfa_ioc_state ioc_st = bfa_sm_to_state(ioc_sm_table, ioc->fsm);
+	enum bfa_ioc_state ioc_st = ioc_sm_to_state(ioc_sm_table, ioc->fsm);
 
 	if (ioc_st == BFA_IOC_ENABLING ||
 		ioc_st == BFA_IOC_FAIL || ioc_st == BFA_IOC_INITFAIL) {
 
-		iocpf_st = bfa_sm_to_state(iocpf_sm_table, ioc->iocpf.fsm);
+		iocpf_st = iocpf_sm_to_state(iocpf_sm_table, ioc->iocpf.fsm);
 
 		switch (iocpf_st) {
 		case BFA_IOCPF_SEMWAIT:
diff --git a/drivers/scsi/bfa/bfa_ioc.h b/drivers/scsi/bfa/bfa_ioc.h
index 713745d..78b9671 100644
--- a/drivers/scsi/bfa/bfa_ioc.h
+++ b/drivers/scsi/bfa/bfa_ioc.h
@@ -259,7 +259,7 @@ struct bfa_ioc_cbfn_s {
 	bfa_ioc_disable_cbfn_t	disable_cbfn;
 	bfa_ioc_hbfail_cbfn_t	hbfail_cbfn;
 	bfa_ioc_reset_cbfn_t	reset_cbfn;
-};
+} __no_const;
 
 /*
  * IOC event notification mechanism.
@@ -286,16 +286,20 @@ struct bfa_ioc_notify_s {
 	(__notify)->cbarg = (__cbarg);      \
 } while (0)
 
+enum iocpf_event;
+
 struct bfa_iocpf_s {
-	bfa_fsm_t		fsm;
+	void (*fsm)(struct bfa_iocpf_s *, enum iocpf_event);
 	struct bfa_ioc_s	*ioc;
 	bfa_boolean_t		fw_mismatch_notified;
 	bfa_boolean_t		auto_recover;
 	u32			poll_time;
 };
 
+enum ioc_event;
+
 struct bfa_ioc_s {
-	bfa_fsm_t		fsm;
+	void (*fsm)(struct bfa_ioc_s *, enum ioc_event);
 	struct bfa_s		*bfa;
 	struct bfa_pcidev_s	pcidev;
 	struct bfa_timer_mod_s	*timer_mod;
@@ -353,7 +357,7 @@ struct bfa_ioc_hwif_s {
 	void		(*ioc_set_alt_fwstate)	(struct bfa_ioc_s *ioc,
 					enum bfi_ioc_state fwstate);
 	enum bfi_ioc_state	(*ioc_get_alt_fwstate)	(struct bfa_ioc_s *ioc);
-};
+} __no_const;
 
 /*
  * Queue element to wait for room in request queue. FIFO order is
@@ -779,8 +783,10 @@ struct bfa_dconf_s {
 };
 #pragma pack()
 
+enum bfa_dconf_event;
+
 struct bfa_dconf_mod_s {
-	bfa_sm_t		sm;
+	void (*sm)(struct bfa_dconf_mod_s *, enum bfa_dconf_event);
 	u8			instance;
 	bfa_boolean_t		read_data_valid;
 	bfa_boolean_t		min_cfg;
diff --git a/drivers/scsi/bfa/bfa_modules.h b/drivers/scsi/bfa/bfa_modules.h
index 53135f2..640621b 100644
--- a/drivers/scsi/bfa/bfa_modules.h
+++ b/drivers/scsi/bfa/bfa_modules.h
@@ -79,12 +79,12 @@ enum {
 									\
 	extern struct bfa_module_s hal_mod_ ## __mod;			\
 	struct bfa_module_s hal_mod_ ## __mod = {			\
-		bfa_ ## __mod ## _meminfo,				\
-		bfa_ ## __mod ## _attach,				\
-		bfa_ ## __mod ## _detach,				\
-		bfa_ ## __mod ## _start,				\
-		bfa_ ## __mod ## _stop,					\
-		bfa_ ## __mod ## _iocdisable,				\
+		.meminfo = bfa_ ## __mod ## _meminfo,			\
+		.attach = bfa_ ## __mod ## _attach,			\
+		.detach = bfa_ ## __mod ## _detach,			\
+		.start = bfa_ ## __mod ## _start,			\
+		.stop = bfa_ ## __mod ## _stop,				\
+		.iocdisable = bfa_ ## __mod ## _iocdisable,		\
 	}
 
 #define BFA_CACHELINE_SZ	(256)
diff --git a/drivers/scsi/bfa/bfa_svc.c b/drivers/scsi/bfa/bfa_svc.c
index 12de292..ec9f0ab 100644
--- a/drivers/scsi/bfa/bfa_svc.c
+++ b/drivers/scsi/bfa/bfa_svc.c
@@ -225,7 +225,7 @@ static void     bfa_fcport_ln_sm_up_dn_nf(struct bfa_fcport_ln_s *ln,
 static void     bfa_fcport_ln_sm_up_dn_up_nf(struct bfa_fcport_ln_s *ln,
 					enum bfa_fcport_ln_sm_event event);
 
-static struct bfa_sm_table_s hal_port_sm_table[] = {
+static struct fcport_sm_table_s hal_port_sm_table[] = {
 	{BFA_SM(bfa_fcport_sm_uninit), BFA_PORT_ST_UNINIT},
 	{BFA_SM(bfa_fcport_sm_enabling_qwait), BFA_PORT_ST_ENABLING_QWAIT},
 	{BFA_SM(bfa_fcport_sm_enabling), BFA_PORT_ST_ENABLING},
@@ -3642,7 +3642,7 @@ bfa_fcport_isr(struct bfa_s *bfa, struct bfi_msg_s *msg)
 	fcport->event_arg.i2hmsg = i2hmsg;
 
 	bfa_trc(bfa, msg->mhdr.msg_id);
-	bfa_trc(bfa, bfa_sm_to_state(hal_port_sm_table, fcport->sm));
+	bfa_trc(bfa, fcport_sm_to_state(hal_port_sm_table, fcport->sm));
 
 	switch (msg->mhdr.msg_id) {
 	case BFI_FCPORT_I2H_ENABLE_RSP:
@@ -4077,7 +4077,7 @@ bfa_fcport_get_attr(struct bfa_s *bfa, struct bfa_port_attr_s *attr)
 
 	attr->pport_cfg.path_tov  = bfa_fcpim_path_tov_get(bfa);
 	attr->pport_cfg.q_depth  = bfa_fcpim_qdepth_get(bfa);
-	attr->port_state = bfa_sm_to_state(hal_port_sm_table, fcport->sm);
+	attr->port_state = fcport_sm_to_state(hal_port_sm_table, fcport->sm);
 
 	attr->fec_state = fcport->fec_state;
 
@@ -4159,7 +4159,7 @@ bfa_fcport_is_disabled(struct bfa_s *bfa)
 {
 	struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
 
-	return bfa_sm_to_state(hal_port_sm_table, fcport->sm) ==
+	return fcport_sm_to_state(hal_port_sm_table, fcport->sm) ==
 		BFA_PORT_ST_DISABLED;
 
 }
@@ -4169,7 +4169,7 @@ bfa_fcport_is_dport(struct bfa_s *bfa)
 {
 	struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
 
-	return (bfa_sm_to_state(hal_port_sm_table, fcport->sm) ==
+	return (fcport_sm_to_state(hal_port_sm_table, fcport->sm) ==
 		BFA_PORT_ST_DPORT);
 }
 
@@ -4178,7 +4178,7 @@ bfa_fcport_is_ddport(struct bfa_s *bfa)
 {
 	struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
 
-	return (bfa_sm_to_state(hal_port_sm_table, fcport->sm) ==
+	return (fcport_sm_to_state(hal_port_sm_table, fcport->sm) ==
 		BFA_PORT_ST_DDPORT);
 }
 
diff --git a/drivers/scsi/bfa/bfa_svc.h b/drivers/scsi/bfa/bfa_svc.h
index ea2278b..6f51a73 100644
--- a/drivers/scsi/bfa/bfa_svc.h
+++ b/drivers/scsi/bfa/bfa_svc.h
@@ -160,6 +160,8 @@ struct bfa_fcxp_rsp_info_s {
 	u32	rsp_maxlen;	/*  max response length expected */
 };
 
+typedef void (*bfa_sm_t)(void *sm, int event);
+
 struct bfa_fcxp_s {
 	struct list_head	qe;		/*  fcxp queue element */
 	bfa_sm_t	sm;		/*  state machine */
@@ -295,9 +297,11 @@ struct bfa_rport_info_s {
 /*
  * BFA rport data structure
  */
+enum bfa_rport_event;
+
 struct bfa_rport_s {
 	struct list_head	qe;	/*  queue element		    */
-	bfa_sm_t	sm;		/*  state machine		    */
+	void (*sm)(struct bfa_rport_s *, enum bfa_rport_event);/*  state machine		    */
 	struct bfa_s	*bfa;		/*  backpointer to BFA		    */
 	void		*rport_drv;	/*  fcs/driver rport object	    */
 	u16	fw_handle;	/*  firmware rport handle	    */
@@ -388,10 +392,12 @@ void	bfa_uf_res_recfg(struct bfa_s *bfa, u16 num_uf_fw);
 /*
  * LPS - bfa lport login/logout service interface
  */
+enum bfa_lps_event;
+
 struct bfa_lps_s {
 	struct list_head	qe;	/*  queue element		*/
 	struct bfa_s	*bfa;		/*  parent bfa instance	*/
-	bfa_sm_t	sm;		/*  finite state machine	*/
+	void (*sm)(struct bfa_lps_s *, enum bfa_lps_event);/*  finite state machine	*/
 	u8		bfa_tag;	/*  lport tag		*/
 	u8		fw_tag;		/*  lport fw tag                */
 	u8		reqq;		/*  lport request queue	*/
@@ -450,9 +456,11 @@ void	bfa_lps_isr(struct bfa_s *bfa, struct bfi_msg_s *msg);
 /*
  * Link notification data structure
  */
+enum bfa_fcport_ln_sm_event;
+
 struct bfa_fcport_ln_s {
 	struct bfa_fcport_s	*fcport;
-	bfa_sm_t		sm;
+	void (*sm)(struct bfa_fcport_ln_s *, enum bfa_fcport_ln_sm_event);
 	struct bfa_cb_qe_s	ln_qe;	/*  BFA callback queue elem for ln */
 	enum bfa_port_linkstate ln_event; /*  ln event for callback */
 };
@@ -466,7 +474,7 @@ struct bfa_fcport_trunk_s {
  */
 struct bfa_fcport_s {
 	struct bfa_s		*bfa;	/*  parent BFA instance */
-	bfa_sm_t		sm;	/*  port state machine */
+	void (*sm)(struct bfa_fcport_s *, enum bfa_fcport_sm_event);	/*  port state machine */
 	wwn_t			nwwn;	/*  node wwn of physical port */
 	wwn_t			pwwn;	/*  port wwn of physical oprt */
 	enum bfa_port_speed speed_sup;
@@ -714,9 +722,11 @@ struct bfa_fcdiag_lb_s {
 	u32        status;
 };
 
+enum bfa_dport_sm_event;
+
 struct bfa_dport_s {
 	struct bfa_s	*bfa;		/* Back pointer to BFA	*/
-	bfa_sm_t	sm;		/* finite state machine */
+	void (*sm)(struct bfa_dport_s *, enum bfa_dport_sm_event);/* finite state machine */
 	struct bfa_reqq_wait_s reqq_wait;
 	bfa_cb_diag_t	cbfn;
 	void		*cbarg;
diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c
index 9d253cb..bb533ea 100644
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -408,6 +408,16 @@ bfad_hcb_comp(void *arg, bfa_status_t status)
 	complete(&fcomp->comp);
 }
 
+void
+bfad_stats_comp(void *arg, bfa_boolean_t _status)
+{
+	struct bfad_hal_comp *fcomp = (struct bfad_hal_comp *)arg;
+	bfa_status_t status = (bfa_status_t)_status;
+
+	fcomp->status = status;
+	complete(&fcomp->comp);
+}
+
 /*
  * bfa_init callback
  */
@@ -1442,7 +1452,7 @@ bfad_pci_remove(struct pci_dev *pdev)
  * PCI Error Recovery entry, error detected.
  */
 static pci_ers_result_t
-bfad_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
+bfad_pci_error_detected(struct pci_dev *pdev, enum pci_channel_state state)
 {
 	struct bfad_s *bfad = pci_get_drvdata(pdev);
 	unsigned long	flags;
diff --git a/drivers/scsi/bfa/bfad_bsg.c b/drivers/scsi/bfa/bfad_bsg.c
index d1ad020..661c0f9 100644
--- a/drivers/scsi/bfa/bfad_bsg.c
+++ b/drivers/scsi/bfa/bfad_bsg.c
@@ -2145,7 +2145,7 @@ bfad_iocmd_fcport_get_stats(struct bfad_s *bfad, void *cmd)
 	struct bfa_cb_pending_q_s cb_qe;
 
 	init_completion(&fcomp.comp);
-	bfa_pending_q_init(&cb_qe, (bfa_cb_cbfn_t)bfad_hcb_comp,
+	bfa_pending_q_init(&cb_qe, bfad_stats_comp,
 			   &fcomp, &iocmd->stats);
 	spin_lock_irqsave(&bfad->bfad_lock, flags);
 	iocmd->status = bfa_fcport_get_stats(&bfad->bfa, &cb_qe);
@@ -2169,7 +2169,7 @@ bfad_iocmd_fcport_reset_stats(struct bfad_s *bfad, void *cmd)
 	struct bfa_cb_pending_q_s cb_qe;
 
 	init_completion(&fcomp.comp);
-	bfa_pending_q_init(&cb_qe, (bfa_cb_cbfn_t)bfad_hcb_comp, &fcomp, NULL);
+	bfa_pending_q_init(&cb_qe, bfad_stats_comp, &fcomp, NULL);
 
 	spin_lock_irqsave(&bfad->bfad_lock, flags);
 	iocmd->status = bfa_fcport_clear_stats(&bfad->bfa, &cb_qe);
@@ -2453,7 +2453,7 @@ bfad_iocmd_qos_get_stats(struct bfad_s *bfad, void *cmd)
 	struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(&bfad->bfa);
 
 	init_completion(&fcomp.comp);
-	bfa_pending_q_init(&cb_qe, (bfa_cb_cbfn_t)bfad_hcb_comp,
+	bfa_pending_q_init(&cb_qe, bfad_stats_comp,
 			   &fcomp, &iocmd->stats);
 
 	spin_lock_irqsave(&bfad->bfad_lock, flags);
@@ -2484,7 +2484,7 @@ bfad_iocmd_qos_reset_stats(struct bfad_s *bfad, void *cmd)
 	struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(&bfad->bfa);
 
 	init_completion(&fcomp.comp);
-	bfa_pending_q_init(&cb_qe, (bfa_cb_cbfn_t)bfad_hcb_comp,
+	bfa_pending_q_init(&cb_qe, bfad_stats_comp,
 			   &fcomp, NULL);
 
 	spin_lock_irqsave(&bfad->bfad_lock, flags);
diff --git a/drivers/scsi/bfa/bfad_drv.h b/drivers/scsi/bfa/bfad_drv.h
index f9e8620..807a983 100644
--- a/drivers/scsi/bfa/bfad_drv.h
+++ b/drivers/scsi/bfa/bfad_drv.h
@@ -187,8 +187,10 @@ union bfad_tmp_buf {
 /*
  * BFAD (PCI function) data structure
  */
+enum bfad_sm_event;
+
 struct bfad_s {
-	bfa_sm_t	sm;	/* state machine */
+	void (*sm)(struct bfad_s *, enum bfad_sm_event); /* state machine */
 	struct list_head list_entry;
 	struct bfa_s	bfa;
 	struct bfa_fcs_s bfa_fcs;
@@ -309,6 +311,7 @@ void		bfad_fcs_stop(struct bfad_s *bfad);
 void		bfad_remove_intr(struct bfad_s *bfad);
 void		bfad_hal_mem_release(struct bfad_s *bfad);
 void		bfad_hcb_comp(void *arg, bfa_status_t status);
+void		bfad_stats_comp(void *arg, bfa_boolean_t _status);
 
 int		bfad_setup_intr(struct bfad_s *bfad);
 void		bfad_remove_intr(struct bfad_s *bfad);
diff --git a/drivers/scsi/csiostor/csio_defs.h b/drivers/scsi/csiostor/csio_defs.h
index c38017b..3268e62 100644
--- a/drivers/scsi/csiostor/csio_defs.h
+++ b/drivers/scsi/csiostor/csio_defs.h
@@ -73,7 +73,8 @@ csio_list_deleted(struct list_head *list)
 #define csio_list_prev(elem)	(((struct list_head *)(elem))->prev)
 
 /* State machine */
-typedef void (*csio_sm_state_t)(void *, uint32_t);
+struct csio_sm;
+typedef void (*csio_sm_state_t)(struct csio_sm *, uint32_t);
 
 struct csio_sm {
 	struct list_head	sm_list;
@@ -81,9 +82,9 @@ struct csio_sm {
 };
 
 static inline void
-csio_set_state(void *smp, void *state)
+csio_set_state(struct csio_sm *smp, csio_sm_state_t state)
 {
-	((struct csio_sm *)smp)->sm_state = (csio_sm_state_t)state;
+	smp->sm_state = state;
 }
 
 static inline void
@@ -93,21 +94,21 @@ csio_init_state(struct csio_sm *smp, void *state)
 }
 
 static inline void
-csio_post_event(void *smp, uint32_t evt)
+csio_post_event(struct csio_sm *smp, uint32_t evt)
 {
-	((struct csio_sm *)smp)->sm_state(smp, evt);
+	smp->sm_state(smp, evt);
 }
 
 static inline csio_sm_state_t
-csio_get_state(void *smp)
+csio_get_state(struct csio_sm *smp)
 {
-	return ((struct csio_sm *)smp)->sm_state;
+	return smp->sm_state;
 }
 
 static inline bool
-csio_match_state(void *smp, void *state)
+csio_match_state(struct csio_sm *smp, csio_sm_state_t state)
 {
-	return (csio_get_state(smp) == (csio_sm_state_t)state);
+	return (csio_get_state(smp) == state);
 }
 
 #define	CSIO_ASSERT(cond)		BUG_ON(!(cond))
diff --git a/drivers/scsi/csiostor/csio_hw.c b/drivers/scsi/csiostor/csio_hw.c
index 622bdab..1a31d41 100644
--- a/drivers/scsi/csiostor/csio_hw.c
+++ b/drivers/scsi/csiostor/csio_hw.c
@@ -89,15 +89,15 @@ static void csio_mgmtm_cleanup(struct csio_mgmtm *);
 static void csio_hw_mbm_cleanup(struct csio_hw *);
 
 /* State machine forward declarations */
-static void csio_hws_uninit(struct csio_hw *, enum csio_hw_ev);
-static void csio_hws_configuring(struct csio_hw *, enum csio_hw_ev);
-static void csio_hws_initializing(struct csio_hw *, enum csio_hw_ev);
-static void csio_hws_ready(struct csio_hw *, enum csio_hw_ev);
-static void csio_hws_quiescing(struct csio_hw *, enum csio_hw_ev);
-static void csio_hws_quiesced(struct csio_hw *, enum csio_hw_ev);
-static void csio_hws_resetting(struct csio_hw *, enum csio_hw_ev);
-static void csio_hws_removing(struct csio_hw *, enum csio_hw_ev);
-static void csio_hws_pcierr(struct csio_hw *, enum csio_hw_ev);
+static void csio_hws_uninit(struct csio_sm *, uint32_t);
+static void csio_hws_configuring(struct csio_sm *, uint32_t);
+static void csio_hws_initializing(struct csio_sm *, uint32_t);
+static void csio_hws_ready(struct csio_sm *, uint32_t);
+static void csio_hws_quiescing(struct csio_sm *, uint32_t);
+static void csio_hws_quiesced(struct csio_sm *, uint32_t);
+static void csio_hws_resetting(struct csio_sm *, uint32_t);
+static void csio_hws_removing(struct csio_sm *, uint32_t);
+static void csio_hws_pcierr(struct csio_sm *, uint32_t);
 
 static void csio_hw_initialize(struct csio_hw *hw);
 static void csio_evtq_stop(struct csio_hw *hw);
@@ -105,12 +105,12 @@ static void csio_evtq_start(struct csio_hw *hw);
 
 int csio_is_hw_ready(struct csio_hw *hw)
 {
-	return csio_match_state(hw, csio_hws_ready);
+	return csio_match_state(&hw->sm, csio_hws_ready);
 }
 
 int csio_is_hw_removing(struct csio_hw *hw)
 {
-	return csio_match_state(hw, csio_hws_removing);
+	return csio_match_state(&hw->sm, csio_hws_removing);
 }
 
 
@@ -2326,8 +2326,11 @@ csio_hw_fatal_err(struct csio_hw *hw)
  *
  */
 static void
-csio_hws_uninit(struct csio_hw *hw, enum csio_hw_ev evt)
+csio_hws_uninit(struct csio_sm *_hw, uint32_t _evt)
 {
+	struct csio_hw *hw = container_of(_hw, struct csio_hw, sm);
+	enum csio_hw_ev evt = _evt;
+
 	hw->prev_evt = hw->cur_evt;
 	hw->cur_evt = evt;
 	CSIO_INC_STATS(hw, n_evt_sm[evt]);
@@ -2351,8 +2354,11 @@ csio_hws_uninit(struct csio_hw *hw, enum csio_hw_ev evt)
  *
  */
 static void
-csio_hws_configuring(struct csio_hw *hw, enum csio_hw_ev evt)
+csio_hws_configuring(struct csio_sm *_hw, uint32_t _evt)
 {
+	struct csio_hw *hw = container_of(_hw, struct csio_hw, sm);
+	enum csio_hw_ev evt = _evt;
+
 	hw->prev_evt = hw->cur_evt;
 	hw->cur_evt = evt;
 	CSIO_INC_STATS(hw, n_evt_sm[evt]);
@@ -2389,8 +2395,11 @@ csio_hws_configuring(struct csio_hw *hw, enum csio_hw_ev evt)
  *
  */
 static void
-csio_hws_initializing(struct csio_hw *hw, enum csio_hw_ev evt)
+csio_hws_initializing(struct csio_sm *_hw, uint32_t _evt)
 {
+	struct csio_hw *hw = container_of(_hw, struct csio_hw, sm);
+	enum csio_hw_ev evt = _evt;
+
 	hw->prev_evt = hw->cur_evt;
 	hw->cur_evt = evt;
 	CSIO_INC_STATS(hw, n_evt_sm[evt]);
@@ -2427,8 +2436,11 @@ csio_hws_initializing(struct csio_hw *hw, enum csio_hw_ev evt)
  *
  */
 static void
-csio_hws_ready(struct csio_hw *hw, enum csio_hw_ev evt)
+csio_hws_ready(struct csio_sm *_hw, uint32_t _evt)
 {
+	struct csio_hw *hw = container_of(_hw, struct csio_hw, sm);
+	enum csio_hw_ev evt = _evt;
+
 	/* Remember the event */
 	hw->evtflag = evt;
 
@@ -2476,8 +2488,11 @@ csio_hws_ready(struct csio_hw *hw, enum csio_hw_ev evt)
  *
  */
 static void
-csio_hws_quiescing(struct csio_hw *hw, enum csio_hw_ev evt)
+csio_hws_quiescing(struct csio_sm *_hw, uint32_t _evt)
 {
+	struct csio_hw *hw = container_of(_hw, struct csio_hw, sm);
+	enum csio_hw_ev evt = _evt;
+
 	hw->prev_evt = hw->cur_evt;
 	hw->cur_evt = evt;
 	CSIO_INC_STATS(hw, n_evt_sm[evt]);
@@ -2536,8 +2551,11 @@ csio_hws_quiescing(struct csio_hw *hw, enum csio_hw_ev evt)
  *
  */
 static void
-csio_hws_quiesced(struct csio_hw *hw, enum csio_hw_ev evt)
+csio_hws_quiesced(struct csio_sm *_hw, uint32_t _evt)
 {
+	struct csio_hw *hw = container_of(_hw, struct csio_hw, sm);
+	enum csio_hw_ev evt = _evt;
+
 	hw->prev_evt = hw->cur_evt;
 	hw->cur_evt = evt;
 	CSIO_INC_STATS(hw, n_evt_sm[evt]);
@@ -2561,8 +2579,11 @@ csio_hws_quiesced(struct csio_hw *hw, enum csio_hw_ev evt)
  *
  */
 static void
-csio_hws_resetting(struct csio_hw *hw, enum csio_hw_ev evt)
+csio_hws_resetting(struct csio_sm *_hw, uint32_t _evt)
 {
+	struct csio_hw *hw = container_of(_hw, struct csio_hw, sm);
+	enum csio_hw_ev evt = _evt;
+
 	hw->prev_evt = hw->cur_evt;
 	hw->cur_evt = evt;
 	CSIO_INC_STATS(hw, n_evt_sm[evt]);
@@ -2587,8 +2608,11 @@ csio_hws_resetting(struct csio_hw *hw, enum csio_hw_ev evt)
  *
  */
 static void
-csio_hws_removing(struct csio_hw *hw, enum csio_hw_ev evt)
+csio_hws_removing(struct csio_sm *_hw, uint32_t _evt)
 {
+	struct csio_hw *hw = container_of(_hw, struct csio_hw, sm);
+	enum csio_hw_ev evt = _evt;
+
 	hw->prev_evt = hw->cur_evt;
 	hw->cur_evt = evt;
 	CSIO_INC_STATS(hw, n_evt_sm[evt]);
@@ -2622,8 +2646,11 @@ csio_hws_removing(struct csio_hw *hw, enum csio_hw_ev evt)
  *
  */
 static void
-csio_hws_pcierr(struct csio_hw *hw, enum csio_hw_ev evt)
+csio_hws_pcierr(struct csio_sm *_hw, uint32_t _evt)
 {
+	struct csio_hw *hw = container_of(_hw, struct csio_hw, sm);
+	enum csio_hw_ev evt = _evt;
+
 	hw->prev_evt = hw->cur_evt;
 	hw->cur_evt = evt;
 	CSIO_INC_STATS(hw, n_evt_sm[evt]);
diff --git a/drivers/scsi/csiostor/csio_init.c b/drivers/scsi/csiostor/csio_init.c
index dbe416f..25a9a5b 100644
--- a/drivers/scsi/csiostor/csio_init.c
+++ b/drivers/scsi/csiostor/csio_init.c
@@ -1053,7 +1053,7 @@ static void csio_remove_one(struct pci_dev *pdev)
  *
  */
 static pci_ers_result_t
-csio_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
+csio_pci_error_detected(struct pci_dev *pdev, enum pci_channel_state state)
 {
 	struct csio_hw *hw = pci_get_drvdata(pdev);
 
diff --git a/drivers/scsi/csiostor/csio_lnode.c b/drivers/scsi/csiostor/csio_lnode.c
index c00b2ff..da72dbc 100644
--- a/drivers/scsi/csiostor/csio_lnode.c
+++ b/drivers/scsi/csiostor/csio_lnode.c
@@ -55,10 +55,10 @@ int csio_fdmi_enable = 1;
 #define PORT_ID_PTR(_x)         ((uint8_t *)(&_x) + 1)
 
 /* Lnode SM declarations */
-static void csio_lns_uninit(struct csio_lnode *, enum csio_ln_ev);
-static void csio_lns_online(struct csio_lnode *, enum csio_ln_ev);
-static void csio_lns_ready(struct csio_lnode *, enum csio_ln_ev);
-static void csio_lns_offline(struct csio_lnode *, enum csio_ln_ev);
+static void csio_lns_uninit(struct csio_sm *, uint32_t);
+static void csio_lns_online(struct csio_sm *, uint32_t);
+static void csio_lns_ready(struct csio_sm *, uint32_t);
+static void csio_lns_offline(struct csio_sm *, uint32_t);
 
 static int csio_ln_mgmt_submit_req(struct csio_ioreq *,
 		void (*io_cbfn) (struct csio_hw *, struct csio_ioreq *),
@@ -1077,7 +1077,7 @@ csio_handle_link_down(struct csio_hw *hw, uint8_t portid, uint32_t fcfi,
 int
 csio_is_lnode_ready(struct csio_lnode *ln)
 {
-	return (csio_get_state(ln) == ((csio_sm_state_t)csio_lns_ready));
+	return (csio_get_state(&ln->sm) == csio_lns_ready);
 }
 
 /*****************************************************************************/
@@ -1093,8 +1093,10 @@ csio_is_lnode_ready(struct csio_lnode *ln)
  * Return - none.
  */
 static void
-csio_lns_uninit(struct csio_lnode *ln, enum csio_ln_ev evt)
+csio_lns_uninit(struct csio_sm *_ln, uint32_t _evt)
 {
+	struct csio_lnode *ln = container_of(_ln, struct csio_lnode, sm);
+	enum csio_ln_ev evt = _evt;
 	struct csio_hw *hw = csio_lnode_to_hw(ln);
 	struct csio_lnode *rln = hw->rln;
 	int rv;
@@ -1146,8 +1148,10 @@ csio_lns_uninit(struct csio_lnode *ln, enum csio_ln_ev evt)
  * Return - none.
  */
 static void
-csio_lns_online(struct csio_lnode *ln, enum csio_ln_ev evt)
+csio_lns_online(struct csio_sm *_ln, uint32_t _evt)
 {
+	struct csio_lnode *ln = container_of(_ln, struct csio_lnode, sm);
+	enum csio_ln_ev evt = _evt;
 	struct csio_hw *hw = csio_lnode_to_hw(ln);
 
 	CSIO_INC_STATS(ln, n_evt_sm[evt]);
@@ -1198,8 +1202,10 @@ csio_lns_online(struct csio_lnode *ln, enum csio_ln_ev evt)
  * Return - none.
  */
 static void
-csio_lns_ready(struct csio_lnode *ln, enum csio_ln_ev evt)
+csio_lns_ready(struct csio_sm *_ln, uint32_t _evt)
 {
+	struct csio_lnode *ln = container_of(_ln, struct csio_lnode, sm);
+	enum csio_ln_ev evt = _evt;
 	struct csio_hw *hw = csio_lnode_to_hw(ln);
 
 	CSIO_INC_STATS(ln, n_evt_sm[evt]);
@@ -1272,8 +1278,10 @@ csio_lns_ready(struct csio_lnode *ln, enum csio_ln_ev evt)
  * Return - none.
  */
 static void
-csio_lns_offline(struct csio_lnode *ln, enum csio_ln_ev evt)
+csio_lns_offline(struct csio_sm *_ln, uint32_t _evt)
 {
+	struct csio_lnode *ln = container_of(_ln, struct csio_lnode, sm);
+	enum csio_ln_ev evt = _evt;
 	struct csio_hw *hw = csio_lnode_to_hw(ln);
 	struct csio_lnode *rln = hw->rln;
 	int rv;
@@ -1349,15 +1357,15 @@ csio_free_fcfinfo(struct kref *kref)
 void
 csio_lnode_state_to_str(struct csio_lnode *ln, int8_t *str)
 {
-	if (csio_get_state(ln) == ((csio_sm_state_t)csio_lns_uninit)) {
+	if (csio_get_state(&ln->sm) == csio_lns_uninit) {
 		strcpy(str, "UNINIT");
 		return;
 	}
-	if (csio_get_state(ln) == ((csio_sm_state_t)csio_lns_ready)) {
+	if (csio_get_state(&ln->sm) == csio_lns_ready) {
 		strcpy(str, "READY");
 		return;
 	}
-	if (csio_get_state(ln) == ((csio_sm_state_t)csio_lns_offline)) {
+	if (csio_get_state(&ln->sm) == csio_lns_offline) {
 		strcpy(str, "OFFLINE");
 		return;
 	}
diff --git a/drivers/scsi/csiostor/csio_rnode.c b/drivers/scsi/csiostor/csio_rnode.c
index e9c3b04..4ba3a59 100644
--- a/drivers/scsi/csiostor/csio_rnode.c
+++ b/drivers/scsi/csiostor/csio_rnode.c
@@ -46,10 +46,10 @@ static int csio_rnode_init(struct csio_rnode *, struct csio_lnode *);
 static void csio_rnode_exit(struct csio_rnode *);
 
 /* Static machine forward declarations */
-static void csio_rns_uninit(struct csio_rnode *, enum csio_rn_ev);
-static void csio_rns_ready(struct csio_rnode *, enum csio_rn_ev);
-static void csio_rns_offline(struct csio_rnode *, enum csio_rn_ev);
-static void csio_rns_disappeared(struct csio_rnode *, enum csio_rn_ev);
+static void csio_rns_uninit(struct csio_sm *, uint32_t);
+static void csio_rns_ready(struct csio_sm *, uint32_t);
+static void csio_rns_offline(struct csio_sm *, uint32_t);
+static void csio_rns_disappeared(struct csio_sm *, uint32_t);
 
 /* RNF event mapping */
 static enum csio_rn_ev fwevt_to_rnevt[] = {
@@ -88,13 +88,13 @@ static enum csio_rn_ev fwevt_to_rnevt[] = {
 int
 csio_is_rnode_ready(struct csio_rnode *rn)
 {
-	return csio_match_state(rn, csio_rns_ready);
+	return csio_match_state(&rn->sm, csio_rns_ready);
 }
 
 static int
 csio_is_rnode_uninit(struct csio_rnode *rn)
 {
-	return csio_match_state(rn, csio_rns_uninit);
+	return csio_match_state(&rn->sm, csio_rns_uninit);
 }
 
 static int
@@ -601,8 +601,10 @@ __csio_unreg_rnode(struct csio_rnode *rn)
  *
  */
 static void
-csio_rns_uninit(struct csio_rnode *rn, enum csio_rn_ev evt)
+csio_rns_uninit(struct csio_sm *_rn, uint32_t _evt)
 {
+	struct csio_rnode *rn = container_of(_rn, struct csio_rnode, sm);
+	enum csio_rn_ev evt = _evt;
 	struct csio_lnode *ln = csio_rnode_to_lnode(rn);
 	int ret = 0;
 
@@ -641,8 +643,10 @@ csio_rns_uninit(struct csio_rnode *rn, enum csio_rn_ev evt)
  *
  */
 static void
-csio_rns_ready(struct csio_rnode *rn, enum csio_rn_ev evt)
+csio_rns_ready(struct csio_sm *_rn, uint32_t _evt)
 {
+	struct csio_rnode *rn = container_of(_rn, struct csio_rnode, sm);
+	enum csio_rn_ev evt = _evt;
 	struct csio_lnode *ln = csio_rnode_to_lnode(rn);
 	int ret = 0;
 
@@ -726,8 +730,10 @@ csio_rns_ready(struct csio_rnode *rn, enum csio_rn_ev evt)
  *
  */
 static void
-csio_rns_offline(struct csio_rnode *rn, enum csio_rn_ev evt)
+csio_rns_offline(struct csio_sm *_rn, uint32_t _evt)
 {
+	struct csio_rnode *rn = container_of(_rn, struct csio_rnode, sm);
+	enum csio_rn_ev evt = _evt;
 	struct csio_lnode *ln = csio_rnode_to_lnode(rn);
 	int ret = 0;
 
@@ -785,8 +791,10 @@ csio_rns_offline(struct csio_rnode *rn, enum csio_rn_ev evt)
  *
  */
 static void
-csio_rns_disappeared(struct csio_rnode *rn, enum csio_rn_ev evt)
+csio_rns_disappeared(struct csio_sm *_rn, uint32_t _evt)
 {
+	struct csio_rnode *rn = container_of(_rn, struct csio_rnode, sm);
+	enum csio_rn_ev evt = _evt;
 	struct csio_lnode *ln = csio_rnode_to_lnode(rn);
 	int ret = 0;
 
diff --git a/drivers/scsi/csiostor/csio_scsi.c b/drivers/scsi/csiostor/csio_scsi.c
index c2a6f9f..5a37cc4 100644
--- a/drivers/scsi/csiostor/csio_scsi.c
+++ b/drivers/scsi/csiostor/csio_scsi.c
@@ -65,12 +65,12 @@ static int csio_ddp_descs = 128;
 static int csio_do_abrt_cls(struct csio_hw *,
 				      struct csio_ioreq *, bool);
 
-static void csio_scsis_uninit(struct csio_ioreq *, enum csio_scsi_ev);
-static void csio_scsis_io_active(struct csio_ioreq *, enum csio_scsi_ev);
-static void csio_scsis_tm_active(struct csio_ioreq *, enum csio_scsi_ev);
-static void csio_scsis_aborting(struct csio_ioreq *, enum csio_scsi_ev);
-static void csio_scsis_closing(struct csio_ioreq *, enum csio_scsi_ev);
-static void csio_scsis_shost_cmpl_await(struct csio_ioreq *, enum csio_scsi_ev);
+static void csio_scsis_uninit(struct csio_sm *, uint32_t);
+static void csio_scsis_io_active(struct csio_sm *, uint32_t);
+static void csio_scsis_tm_active(struct csio_sm *, uint32_t);
+static void csio_scsis_aborting(struct csio_sm *, uint32_t);
+static void csio_scsis_closing(struct csio_sm *, uint32_t);
+static void csio_scsis_shost_cmpl_await(struct csio_sm *, uint32_t);
 
 /*
  * csio_scsi_match_io - Match an ioreq with the given SCSI level data.
@@ -700,8 +700,10 @@ csio_scsi_abrt_cls(struct csio_ioreq *req, bool abort)
 /* START: SCSI SM                                                            */
 /*****************************************************************************/
 static void
-csio_scsis_uninit(struct csio_ioreq *req, enum csio_scsi_ev evt)
+csio_scsis_uninit(struct csio_sm *_req, uint32_t _evt)
 {
+	struct csio_ioreq *req = container_of(_req, struct csio_ioreq, sm);
+	enum csio_scsi_ev evt = _evt;
 	struct csio_hw *hw = req->lnode->hwp;
 	struct csio_scsim *scsim = csio_hw_to_scsim(hw);
 
@@ -770,8 +772,10 @@ csio_scsis_uninit(struct csio_ioreq *req, enum csio_scsi_ev evt)
 }
 
 static void
-csio_scsis_io_active(struct csio_ioreq *req, enum csio_scsi_ev evt)
+csio_scsis_io_active(struct csio_sm *_req, uint32_t _evt)
 {
+	struct csio_ioreq *req = container_of(_req, struct csio_ioreq, sm);
+	enum csio_scsi_ev evt = _evt;
 	struct csio_hw *hw = req->lnode->hwp;
 	struct csio_scsim *scm = csio_hw_to_scsim(hw);
 	struct csio_rnode *rn;
@@ -842,8 +846,10 @@ csio_scsis_io_active(struct csio_ioreq *req, enum csio_scsi_ev evt)
 }
 
 static void
-csio_scsis_tm_active(struct csio_ioreq *req, enum csio_scsi_ev evt)
+csio_scsis_tm_active(struct csio_sm *_req, uint32_t _evt)
 {
+	struct csio_ioreq *req = container_of(_req, struct csio_ioreq, sm);
+	enum csio_scsi_ev evt = _evt;
 	struct csio_hw *hw = req->lnode->hwp;
 	struct csio_scsim *scm = csio_hw_to_scsim(hw);
 
@@ -885,8 +891,10 @@ csio_scsis_tm_active(struct csio_ioreq *req, enum csio_scsi_ev evt)
 }
 
 static void
-csio_scsis_aborting(struct csio_ioreq *req, enum csio_scsi_ev evt)
+csio_scsis_aborting(struct csio_sm *_req, uint32_t _evt)
 {
+	struct csio_ioreq *req = container_of(_req, struct csio_ioreq, sm);
+	enum csio_scsi_ev evt = _evt;
 	struct csio_hw *hw = req->lnode->hwp;
 	struct csio_scsim *scm = csio_hw_to_scsim(hw);
 
@@ -982,8 +990,10 @@ csio_scsis_aborting(struct csio_ioreq *req, enum csio_scsi_ev evt)
 }
 
 static void
-csio_scsis_closing(struct csio_ioreq *req, enum csio_scsi_ev evt)
+csio_scsis_closing(struct csio_sm *_req, uint32_t _evt)
 {
+	struct csio_ioreq *req = container_of(_req, struct csio_ioreq, sm);
+	enum csio_scsi_ev evt = _evt;
 	struct csio_hw *hw = req->lnode->hwp;
 	struct csio_scsim *scm = csio_hw_to_scsim(hw);
 
@@ -1046,8 +1056,11 @@ csio_scsis_closing(struct csio_ioreq *req, enum csio_scsi_ev evt)
 }
 
 static void
-csio_scsis_shost_cmpl_await(struct csio_ioreq *req, enum csio_scsi_ev evt)
+csio_scsis_shost_cmpl_await(struct csio_sm *_req, uint32_t _evt)
 {
+	struct csio_ioreq *req = container_of(_req, struct csio_ioreq, sm);
+	enum csio_scsi_ev evt = _evt;
+
 	switch (evt) {
 	case CSIO_SCSIE_ABORT:
 	case CSIO_SCSIE_CLOSE:
diff --git a/drivers/scsi/fcoe/fcoe_sysfs.c b/drivers/scsi/fcoe/fcoe_sysfs.c
index 045c4e1..13de803 100644
--- a/drivers/scsi/fcoe/fcoe_sysfs.c
+++ b/drivers/scsi/fcoe/fcoe_sysfs.c
@@ -33,8 +33,8 @@
  */
 #include "libfcoe.h"
 
-static atomic_t ctlr_num;
-static atomic_t fcf_num;
+static atomic_unchecked_t ctlr_num;
+static atomic_unchecked_t fcf_num;
 
 /*
  * fcoe_fcf_dev_loss_tmo: the default number of seconds that fcoe sysfs
@@ -685,7 +685,7 @@ struct fcoe_ctlr_device *fcoe_ctlr_device_add(struct device *parent,
 	if (!ctlr)
 		goto out;
 
-	ctlr->id = atomic_inc_return(&ctlr_num) - 1;
+	ctlr->id = atomic_inc_return_unchecked(&ctlr_num) - 1;
 	ctlr->f = f;
 	ctlr->mode = FIP_CONN_TYPE_FABRIC;
 	INIT_LIST_HEAD(&ctlr->fcfs);
@@ -902,7 +902,7 @@ struct fcoe_fcf_device *fcoe_fcf_device_add(struct fcoe_ctlr_device *ctlr,
 	fcf->dev.parent = &ctlr->dev;
 	fcf->dev.bus = &fcoe_bus_type;
 	fcf->dev.type = &fcoe_fcf_device_type;
-	fcf->id = atomic_inc_return(&fcf_num) - 1;
+	fcf->id = atomic_inc_return_unchecked(&fcf_num) - 1;
 	fcf->state = FCOE_FCF_STATE_UNKNOWN;
 
 	fcf->dev_loss_tmo = ctlr->fcf_dev_loss_tmo;
@@ -938,8 +938,8 @@ int __init fcoe_sysfs_setup(void)
 {
 	int error;
 
-	atomic_set(&ctlr_num, 0);
-	atomic_set(&fcf_num, 0);
+	atomic_set_unchecked(&ctlr_num, 0);
+	atomic_set_unchecked(&fcf_num, 0);
 
 	error = bus_register(&fcoe_bus_type);
 	if (error)
diff --git a/drivers/scsi/fcoe/fcoe_transport.c b/drivers/scsi/fcoe/fcoe_transport.c
index 641c60e..5bfb1f1 100644
--- a/drivers/scsi/fcoe/fcoe_transport.c
+++ b/drivers/scsi/fcoe/fcoe_transport.c
@@ -32,13 +32,13 @@ MODULE_AUTHOR("Open-FCoE.org");
 MODULE_DESCRIPTION("FIP discovery protocol and FCoE transport for FCoE HBAs");
 MODULE_LICENSE("GPL v2");
 
-static int fcoe_transport_create(const char *, struct kernel_param *);
-static int fcoe_transport_destroy(const char *, struct kernel_param *);
+static int fcoe_transport_create(const char *, const struct kernel_param *);
+static int fcoe_transport_destroy(const char *, const struct kernel_param *);
 static int fcoe_transport_show(char *buffer, const struct kernel_param *kp);
 static struct fcoe_transport *fcoe_transport_lookup(struct net_device *device);
 static struct fcoe_transport *fcoe_netdev_map_lookup(struct net_device *device);
-static int fcoe_transport_enable(const char *, struct kernel_param *);
-static int fcoe_transport_disable(const char *, struct kernel_param *);
+static int fcoe_transport_enable(const char *, const struct kernel_param *);
+static int fcoe_transport_disable(const char *, const struct kernel_param *);
 static int libfcoe_device_notification(struct notifier_block *notifier,
 				    ulong event, void *ptr);
 
@@ -846,7 +846,7 @@ EXPORT_SYMBOL(fcoe_ctlr_destroy_store);
  *
  * Returns: 0 for success
  */
-static int fcoe_transport_create(const char *buffer, struct kernel_param *kp)
+static int fcoe_transport_create(const char *buffer, const struct kernel_param *kp)
 {
 	int rc = -ENODEV;
 	struct net_device *netdev = NULL;
@@ -911,7 +911,7 @@ out_nodev:
  *
  * Returns: 0 for success
  */
-static int fcoe_transport_destroy(const char *buffer, struct kernel_param *kp)
+static int fcoe_transport_destroy(const char *buffer, const struct kernel_param *kp)
 {
 	int rc = -ENODEV;
 	struct net_device *netdev = NULL;
@@ -955,7 +955,7 @@ out_nodev:
  *
  * Returns: 0 for success
  */
-static int fcoe_transport_disable(const char *buffer, struct kernel_param *kp)
+static int fcoe_transport_disable(const char *buffer, const struct kernel_param *kp)
 {
 	int rc = -ENODEV;
 	struct net_device *netdev = NULL;
@@ -989,7 +989,7 @@ out_nodev:
  *
  * Returns: 0 for success
  */
-static int fcoe_transport_enable(const char *buffer, struct kernel_param *kp)
+static int fcoe_transport_enable(const char *buffer, const struct kernel_param *kp)
 {
 	int rc = -ENODEV;
 	struct net_device *netdev = NULL;
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 5be944c..4a7936d 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -914,10 +914,10 @@ static inline u32 next_command(struct ctlr_info *h, u8 q)
 	struct reply_queue_buffer *rq = &h->reply_queue[q];
 
 	if (h->transMethod & CFGTBL_Trans_io_accel1)
-		return h->access.command_completed(h, q);
+		return h->access->command_completed(h, q);
 
 	if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant)))
-		return h->access.command_completed(h, q);
+		return h->access->command_completed(h, q);
 
 	if ((rq->head[rq->current_entry] & 1) == rq->wraparound) {
 		a = rq->head[rq->current_entry];
@@ -1099,7 +1099,7 @@ static void __enqueue_cmd_and_start_io(struct ctlr_info *h,
 		break;
 	default:
 		set_performant_mode(h, c, reply_queue);
-		h->access.submit_command(h, c);
+		h->access->submit_command(h, c);
 	}
 }
 
@@ -6843,17 +6843,17 @@ static void __iomem *remap_pci_mem(ulong base, ulong size)
 
 static inline unsigned long get_next_completion(struct ctlr_info *h, u8 q)
 {
-	return h->access.command_completed(h, q);
+	return h->access->command_completed(h, q);
 }
 
 static inline bool interrupt_pending(struct ctlr_info *h)
 {
-	return h->access.intr_pending(h);
+	return h->access->intr_pending(h);
 }
 
 static inline long interrupt_not_for_us(struct ctlr_info *h)
 {
-	return (h->access.intr_pending(h) == 0) ||
+	return (h->access->intr_pending(h) == 0) ||
 		(h->interrupts_enabled == 0);
 }
 
@@ -7781,7 +7781,7 @@ static int hpsa_pci_init(struct ctlr_info *h)
 	if (prod_index < 0)
 		return prod_index;
 	h->product_name = products[prod_index].product_name;
-	h->access = *(products[prod_index].access);
+	h->access = products[prod_index].access;
 
 	h->needs_abort_tags_swizzled =
 		ctlr_needs_abort_tags_swizzled(h->board_id);
@@ -8180,7 +8180,7 @@ static void controller_lockup_detected(struct ctlr_info *h)
 	unsigned long flags;
 	u32 lockup_detected;
 
-	h->access.set_intr_mask(h, HPSA_INTR_OFF);
+	h->access->set_intr_mask(h, HPSA_INTR_OFF);
 	spin_lock_irqsave(&h->lock, flags);
 	lockup_detected = readl(h->vaddr + SA5_SCRATCHPAD_OFFSET);
 	if (!lockup_detected) {
@@ -8516,7 +8516,7 @@ reinit_after_soft_reset:
 	}
 
 	/* make sure the board interrupts are off */
-	h->access.set_intr_mask(h, HPSA_INTR_OFF);
+	h->access->set_intr_mask(h, HPSA_INTR_OFF);
 
 	rc = hpsa_request_irqs(h, do_hpsa_intr_msi, do_hpsa_intr_intx);
 	if (rc)
@@ -8574,7 +8574,7 @@ reinit_after_soft_reset:
 		 * fake ones to scoop up any residual completions.
 		 */
 		spin_lock_irqsave(&h->lock, flags);
-		h->access.set_intr_mask(h, HPSA_INTR_OFF);
+		h->access->set_intr_mask(h, HPSA_INTR_OFF);
 		spin_unlock_irqrestore(&h->lock, flags);
 		hpsa_free_irqs(h);
 		rc = hpsa_request_irqs(h, hpsa_msix_discard_completions,
@@ -8604,9 +8604,9 @@ reinit_after_soft_reset:
 		dev_info(&h->pdev->dev, "Board READY.\n");
 		dev_info(&h->pdev->dev,
 			"Waiting for stale completions to drain.\n");
-		h->access.set_intr_mask(h, HPSA_INTR_ON);
+		h->access->set_intr_mask(h, HPSA_INTR_ON);
 		msleep(10000);
-		h->access.set_intr_mask(h, HPSA_INTR_OFF);
+		h->access->set_intr_mask(h, HPSA_INTR_OFF);
 
 		rc = controller_reset_failed(h->cfgtable);
 		if (rc)
@@ -8633,7 +8633,7 @@ reinit_after_soft_reset:
 
 
 	/* Turn the interrupts on so we can service requests */
-	h->access.set_intr_mask(h, HPSA_INTR_ON);
+	h->access->set_intr_mask(h, HPSA_INTR_ON);
 
 	hpsa_hba_inquiry(h);
 
@@ -8654,7 +8654,7 @@ reinit_after_soft_reset:
 
 clean7: /* perf, sg, cmd, irq, shost, pci, lu, aer/h */
 	hpsa_free_performant_mode(h);
-	h->access.set_intr_mask(h, HPSA_INTR_OFF);
+	h->access->set_intr_mask(h, HPSA_INTR_OFF);
 clean6: /* sg, cmd, irq, pci, lockup, wq/aer/h */
 	hpsa_free_sg_chain_blocks(h);
 clean5: /* cmd, irq, shost, pci, lu, aer/h */
@@ -8789,7 +8789,7 @@ static void hpsa_shutdown(struct pci_dev *pdev)
 	 * To write all data in the battery backed cache to disks
 	 */
 	hpsa_flush_cache(h);
-	h->access.set_intr_mask(h, HPSA_INTR_OFF);
+	h->access->set_intr_mask(h, HPSA_INTR_OFF);
 	hpsa_free_irqs(h);			/* init_one 4 */
 	hpsa_disable_interrupt_mode(h);		/* pci_init 2 */
 }
@@ -8931,7 +8931,7 @@ static int hpsa_enter_performant_mode(struct ctlr_info *h, u32 trans_support)
 				CFGTBL_Trans_enable_directed_msix |
 			(trans_support & (CFGTBL_Trans_io_accel1 |
 				CFGTBL_Trans_io_accel2));
-	struct access_method access = SA5_performant_access;
+	struct access_method *access = &SA5_performant_access;
 
 	/* This is a bit complicated.  There are 8 registers on
 	 * the controller which we write to to tell it 8 different
@@ -8973,7 +8973,7 @@ static int hpsa_enter_performant_mode(struct ctlr_info *h, u32 trans_support)
 	 * perform the superfluous readl() after each command submission.
 	 */
 	if (trans_support & (CFGTBL_Trans_io_accel1 | CFGTBL_Trans_io_accel2))
-		access = SA5_performant_access_no_read;
+		access = &SA5_performant_access_no_read;
 
 	/* Controller spec: zero out this buffer. */
 	for (i = 0; i < h->nreply_queues; i++)
@@ -9003,12 +9003,12 @@ static int hpsa_enter_performant_mode(struct ctlr_info *h, u32 trans_support)
 	 * enable outbound interrupt coalescing in accelerator mode;
 	 */
 	if (trans_support & CFGTBL_Trans_io_accel1) {
-		access = SA5_ioaccel_mode1_access;
+		access = &SA5_ioaccel_mode1_access;
 		writel(10, &h->cfgtable->HostWrite.CoalIntDelay);
 		writel(4, &h->cfgtable->HostWrite.CoalIntCount);
 	} else {
 		if (trans_support & CFGTBL_Trans_io_accel2) {
-			access = SA5_ioaccel_mode2_access;
+			access = &SA5_ioaccel_mode2_access;
 			writel(10, &h->cfgtable->HostWrite.CoalIntDelay);
 			writel(4, &h->cfgtable->HostWrite.CoalIntCount);
 		}
diff --git a/drivers/scsi/hpsa.h b/drivers/scsi/hpsa.h
index d06bb74..8650763 100644
--- a/drivers/scsi/hpsa.h
+++ b/drivers/scsi/hpsa.h
@@ -178,7 +178,7 @@ struct ctlr_info {
 	unsigned int msix_vector;
 	unsigned int msi_vector;
 	int intr_mode; /* either PERF_MODE_INT or SIMPLE_MODE_INT */
-	struct access_method access;
+	struct access_method *access;
 
 	/* queue and queue Info */
 	unsigned int Qdepth;
@@ -578,38 +578,38 @@ static unsigned long SA5_ioaccel_mode1_completed(struct ctlr_info *h, u8 q)
 }
 
 static struct access_method SA5_access = {
-	SA5_submit_command,
-	SA5_intr_mask,
-	SA5_intr_pending,
-	SA5_completed,
+	.submit_command = SA5_submit_command,
+	.set_intr_mask = SA5_intr_mask,
+	.intr_pending = SA5_intr_pending,
+	.command_completed = SA5_completed,
 };
 
 static struct access_method SA5_ioaccel_mode1_access = {
-	SA5_submit_command,
-	SA5_performant_intr_mask,
-	SA5_ioaccel_mode1_intr_pending,
-	SA5_ioaccel_mode1_completed,
+	.submit_command = SA5_submit_command,
+	.set_intr_mask = SA5_performant_intr_mask,
+	.intr_pending = SA5_ioaccel_mode1_intr_pending,
+	.command_completed = SA5_ioaccel_mode1_completed,
 };
 
 static struct access_method SA5_ioaccel_mode2_access = {
-	SA5_submit_command_ioaccel2,
-	SA5_performant_intr_mask,
-	SA5_performant_intr_pending,
-	SA5_performant_completed,
+	.submit_command = SA5_submit_command_ioaccel2,
+	.set_intr_mask = SA5_performant_intr_mask,
+	.intr_pending = SA5_performant_intr_pending,
+	.command_completed = SA5_performant_completed,
 };
 
 static struct access_method SA5_performant_access = {
-	SA5_submit_command,
-	SA5_performant_intr_mask,
-	SA5_performant_intr_pending,
-	SA5_performant_completed,
+	.submit_command = SA5_submit_command,
+	.set_intr_mask = SA5_performant_intr_mask,
+	.intr_pending = SA5_performant_intr_pending,
+	.command_completed = SA5_performant_completed,
 };
 
 static struct access_method SA5_performant_access_no_read = {
-	SA5_submit_command_no_read,
-	SA5_performant_intr_mask,
-	SA5_performant_intr_pending,
-	SA5_performant_completed,
+	.submit_command = SA5_submit_command_no_read,
+	.set_intr_mask = SA5_performant_intr_mask,
+	.intr_pending = SA5_performant_intr_pending,
+	.command_completed = SA5_performant_completed,
 };
 
 struct board_type {
diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c
index a83f705..b40c5e6 100644
--- a/drivers/scsi/hptiop.c
+++ b/drivers/scsi/hptiop.c
@@ -1082,7 +1082,6 @@ static const char *hptiop_info(struct Scsi_Host *host)
 static int hptiop_reset_hba(struct hptiop_hba *hba)
 {
 	if (atomic_xchg(&hba->resetting, 1) == 0) {
-		atomic_inc(&hba->reset_count);
 		hba->ops->post_msg(hba, IOPMU_INBOUND_MSG0_RESET);
 	}
 
@@ -1340,7 +1339,6 @@ static int hptiop_probe(struct pci_dev *pcidev, const struct pci_device_id *id)
 	hba->iopintf_v2 = 0;
 
 	atomic_set(&hba->resetting, 0);
-	atomic_set(&hba->reset_count, 0);
 
 	init_waitqueue_head(&hba->reset_wq);
 	init_waitqueue_head(&hba->ioctl_wq);
diff --git a/drivers/scsi/hptiop.h b/drivers/scsi/hptiop.h
index 4d1c511..d5744cb 100644
--- a/drivers/scsi/hptiop.h
+++ b/drivers/scsi/hptiop.h
@@ -330,7 +330,6 @@ struct hptiop_hba {
 	void        *dma_coherent[HPTIOP_MAX_REQUESTS];
 	dma_addr_t  dma_coherent_handle[HPTIOP_MAX_REQUESTS];
 
-	atomic_t    reset_count;
 	atomic_t    resetting;
 
 	wait_queue_head_t reset_wq;
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index d6a691e..59e3128 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -947,7 +947,7 @@ static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
  **/
 static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
 		       void (*done) (struct ipr_cmnd *),
-		       void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
+		       void (*timeout_func) (unsigned long), u32 timeout)
 {
 	list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
 
@@ -955,7 +955,7 @@ static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
 
 	ipr_cmd->timer.data = (unsigned long) ipr_cmd;
 	ipr_cmd->timer.expires = jiffies + timeout;
-	ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
+	ipr_cmd->timer.function = timeout_func;
 
 	add_timer(&ipr_cmd->timer);
 
@@ -1037,7 +1037,7 @@ static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
  * 	none
  **/
 static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
-				  void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
+				  void (*timeout_func) (unsigned long ipr_cmd),
 				  u32 timeout)
 {
 	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
@@ -1057,7 +1057,7 @@ static int ipr_get_hrrq_index(struct ipr_ioa_cfg *ioa_cfg)
 	if (ioa_cfg->hrrq_num == 1)
 		hrrq = 0;
 	else {
-		hrrq = atomic_add_return(1, &ioa_cfg->hrrq_index);
+		hrrq = atomic_add_return_unchecked(1, &ioa_cfg->hrrq_index);
 		hrrq = (hrrq % (ioa_cfg->hrrq_num - 1)) + 1;
 	}
 	return hrrq;
@@ -2600,8 +2600,9 @@ static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
  * Return value:
  * 	none
  **/
-static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
+static void ipr_timeout(unsigned long _ipr_cmd)
 {
+	struct ipr_cmnd *ipr_cmd = (struct ipr_cmnd *)_ipr_cmd;
 	unsigned long lock_flags = 0;
 	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
 
@@ -2632,8 +2633,9 @@ static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
  * Return value:
  * 	none
  **/
-static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
+static void ipr_oper_timeout(unsigned long _ipr_cmd)
 {
+	struct ipr_cmnd *ipr_cmd = (struct ipr_cmnd *)_ipr_cmd;
 	unsigned long lock_flags = 0;
 	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
 
@@ -5263,8 +5265,9 @@ static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
  * Return value:
  *	none
  **/
-static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
+static void ipr_abort_timeout(unsigned long _ipr_cmd)
 {
+	struct ipr_cmnd *ipr_cmd = (struct ipr_cmnd *)_ipr_cmd;
 	struct ipr_cmnd *reset_cmd;
 	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
 	struct ipr_cmd_pkt *cmd_pkt;
@@ -8036,8 +8039,9 @@ static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
  * Return value:
  * 	none
  **/
-static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
+static void ipr_reset_timer_done(unsigned long _ipr_cmd)
 {
+	struct ipr_cmnd *ipr_cmd = (struct ipr_cmnd *)_ipr_cmd;
 	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
 	unsigned long lock_flags = 0;
 
@@ -8075,7 +8079,7 @@ static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
 
 	ipr_cmd->timer.data = (unsigned long) ipr_cmd;
 	ipr_cmd->timer.expires = jiffies + timeout;
-	ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
+	ipr_cmd->timer.function = ipr_reset_timer_done;
 	add_timer(&ipr_cmd->timer);
 }
 
@@ -8105,9 +8109,9 @@ static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
 
 	ioa_cfg->identify_hrrq_index = 0;
 	if (ioa_cfg->hrrq_num == 1)
-		atomic_set(&ioa_cfg->hrrq_index, 0);
+		atomic_set_unchecked(&ioa_cfg->hrrq_index, 0);
 	else
-		atomic_set(&ioa_cfg->hrrq_index, 1);
+		atomic_set_unchecked(&ioa_cfg->hrrq_index, 1);
 
 	/* Zero out config table */
 	memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
@@ -8161,7 +8165,7 @@ static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
 
 	ipr_cmd->timer.data = (unsigned long) ipr_cmd;
 	ipr_cmd->timer.expires = jiffies + stage_time * HZ;
-	ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
+	ipr_cmd->timer.function = ipr_oper_timeout;
 	ipr_cmd->done = ipr_reset_ioa_job;
 	add_timer(&ipr_cmd->timer);
 
@@ -8233,7 +8237,7 @@ static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
 
 	ipr_cmd->timer.data = (unsigned long) ipr_cmd;
 	ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
-	ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
+	ipr_cmd->timer.function = ipr_oper_timeout;
 	ipr_cmd->done = ipr_reset_ioa_job;
 	add_timer(&ipr_cmd->timer);
 	list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
@@ -9221,7 +9225,7 @@ static void ipr_pci_perm_failure(struct pci_dev *pdev)
  * 	PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
  */
 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
-					       pci_channel_state_t state)
+					       enum pci_channel_state state)
 {
 	switch (state) {
 	case pci_channel_io_frozen:
diff --git a/drivers/scsi/ipr.h b/drivers/scsi/ipr.h
index 56c5706..209ec50 100644
--- a/drivers/scsi/ipr.h
+++ b/drivers/scsi/ipr.h
@@ -1535,7 +1535,7 @@ struct ipr_ioa_cfg {
 
 	struct ipr_hrr_queue hrrq[IPR_MAX_HRRQ_NUM];
 	u32 hrrq_num;
-	atomic_t  hrrq_index;
+	atomic_unchecked_t  hrrq_index;
 	u16 identify_hrrq_index;
 
 	struct ipr_bus_attributes bus_attr[IPR_MAX_NUM_BUSES];
diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
index 30f9ef0..a1e29ac 100644
--- a/drivers/scsi/libfc/fc_exch.c
+++ b/drivers/scsi/libfc/fc_exch.c
@@ -101,12 +101,12 @@ struct fc_exch_mgr {
 	u16		pool_max_index;
 
 	struct {
-		atomic_t no_free_exch;
-		atomic_t no_free_exch_xid;
-		atomic_t xid_not_found;
-		atomic_t xid_busy;
-		atomic_t seq_not_found;
-		atomic_t non_bls_resp;
+		atomic_unchecked_t no_free_exch;
+		atomic_unchecked_t no_free_exch_xid;
+		atomic_unchecked_t xid_not_found;
+		atomic_unchecked_t xid_busy;
+		atomic_unchecked_t seq_not_found;
+		atomic_unchecked_t non_bls_resp;
 	} stats;
 };
 
@@ -809,7 +809,7 @@ static struct fc_exch *fc_exch_em_alloc(struct fc_lport *lport,
 	/* allocate memory for exchange */
 	ep = mempool_alloc(mp->ep_pool, GFP_ATOMIC);
 	if (!ep) {
-		atomic_inc(&mp->stats.no_free_exch);
+		atomic_inc_unchecked(&mp->stats.no_free_exch);
 		goto out;
 	}
 	memset(ep, 0, sizeof(*ep));
@@ -872,7 +872,7 @@ out:
 	return ep;
 err:
 	spin_unlock_bh(&pool->lock);
-	atomic_inc(&mp->stats.no_free_exch_xid);
+	atomic_inc_unchecked(&mp->stats.no_free_exch_xid);
 	mempool_free(ep, mp->ep_pool);
 	return NULL;
 }
@@ -1021,7 +1021,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
 		xid = ntohs(fh->fh_ox_id);	/* we originated exch */
 		ep = fc_exch_find(mp, xid);
 		if (!ep) {
-			atomic_inc(&mp->stats.xid_not_found);
+			atomic_inc_unchecked(&mp->stats.xid_not_found);
 			reject = FC_RJT_OX_ID;
 			goto out;
 		}
@@ -1051,7 +1051,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
 		ep = fc_exch_find(mp, xid);
 		if ((f_ctl & FC_FC_FIRST_SEQ) && fc_sof_is_init(fr_sof(fp))) {
 			if (ep) {
-				atomic_inc(&mp->stats.xid_busy);
+				atomic_inc_unchecked(&mp->stats.xid_busy);
 				reject = FC_RJT_RX_ID;
 				goto rel;
 			}
@@ -1062,7 +1062,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
 			}
 			xid = ep->xid;	/* get our XID */
 		} else if (!ep) {
-			atomic_inc(&mp->stats.xid_not_found);
+			atomic_inc_unchecked(&mp->stats.xid_not_found);
 			reject = FC_RJT_RX_ID;	/* XID not found */
 			goto out;
 		}
@@ -1080,7 +1080,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
 	} else {
 		sp = &ep->seq;
 		if (sp->id != fh->fh_seq_id) {
-			atomic_inc(&mp->stats.seq_not_found);
+			atomic_inc_unchecked(&mp->stats.seq_not_found);
 			if (f_ctl & FC_FC_END_SEQ) {
 				/*
 				 * Update sequence_id based on incoming last
@@ -1531,22 +1531,22 @@ static void fc_exch_recv_seq_resp(struct fc_exch_mgr *mp, struct fc_frame *fp)
 
 	ep = fc_exch_find(mp, ntohs(fh->fh_ox_id));
 	if (!ep) {
-		atomic_inc(&mp->stats.xid_not_found);
+		atomic_inc_unchecked(&mp->stats.xid_not_found);
 		goto out;
 	}
 	if (ep->esb_stat & ESB_ST_COMPLETE) {
-		atomic_inc(&mp->stats.xid_not_found);
+		atomic_inc_unchecked(&mp->stats.xid_not_found);
 		goto rel;
 	}
 	if (ep->rxid == FC_XID_UNKNOWN)
 		ep->rxid = ntohs(fh->fh_rx_id);
 	if (ep->sid != 0 && ep->sid != ntoh24(fh->fh_d_id)) {
-		atomic_inc(&mp->stats.xid_not_found);
+		atomic_inc_unchecked(&mp->stats.xid_not_found);
 		goto rel;
 	}
 	if (ep->did != ntoh24(fh->fh_s_id) &&
 	    ep->did != FC_FID_FLOGI) {
-		atomic_inc(&mp->stats.xid_not_found);
+		atomic_inc_unchecked(&mp->stats.xid_not_found);
 		goto rel;
 	}
 	sof = fr_sof(fp);
@@ -1555,7 +1555,7 @@ static void fc_exch_recv_seq_resp(struct fc_exch_mgr *mp, struct fc_frame *fp)
 		sp->ssb_stat |= SSB_ST_RESP;
 		sp->id = fh->fh_seq_id;
 	} else if (sp->id != fh->fh_seq_id) {
-		atomic_inc(&mp->stats.seq_not_found);
+		atomic_inc_unchecked(&mp->stats.seq_not_found);
 		goto rel;
 	}
 
@@ -1618,9 +1618,9 @@ static void fc_exch_recv_resp(struct fc_exch_mgr *mp, struct fc_frame *fp)
 	sp = fc_seq_lookup_orig(mp, fp);	/* doesn't hold sequence */
 
 	if (!sp)
-		atomic_inc(&mp->stats.xid_not_found);
+		atomic_inc_unchecked(&mp->stats.xid_not_found);
 	else
-		atomic_inc(&mp->stats.non_bls_resp);
+		atomic_inc_unchecked(&mp->stats.non_bls_resp);
 
 	fc_frame_free(fp);
 }
@@ -2261,13 +2261,13 @@ void fc_exch_update_stats(struct fc_lport *lport)
 
 	list_for_each_entry(ema, &lport->ema_list, ema_list) {
 		mp = ema->mp;
-		st->fc_no_free_exch += atomic_read(&mp->stats.no_free_exch);
+		st->fc_no_free_exch += atomic_read_unchecked(&mp->stats.no_free_exch);
 		st->fc_no_free_exch_xid +=
-				atomic_read(&mp->stats.no_free_exch_xid);
-		st->fc_xid_not_found += atomic_read(&mp->stats.xid_not_found);
-		st->fc_xid_busy += atomic_read(&mp->stats.xid_busy);
-		st->fc_seq_not_found += atomic_read(&mp->stats.seq_not_found);
-		st->fc_non_bls_resp += atomic_read(&mp->stats.non_bls_resp);
+				atomic_read_unchecked(&mp->stats.no_free_exch_xid);
+		st->fc_xid_not_found += atomic_read_unchecked(&mp->stats.xid_not_found);
+		st->fc_xid_busy += atomic_read_unchecked(&mp->stats.xid_busy);
+		st->fc_seq_not_found += atomic_read_unchecked(&mp->stats.seq_not_found);
+		st->fc_non_bls_resp += atomic_read_unchecked(&mp->stats.non_bls_resp);
 	}
 }
 EXPORT_SYMBOL(fc_exch_update_stats);
diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c
index 9c706d8..d3e3ed2 100644
--- a/drivers/scsi/libsas/sas_ata.c
+++ b/drivers/scsi/libsas/sas_ata.c
@@ -535,7 +535,7 @@ static struct ata_port_operations sas_sata_ops = {
 	.postreset		= ata_std_postreset,
 	.error_handler		= ata_std_error_handler,
 	.post_internal_cmd	= sas_ata_post_internal,
-	.qc_defer               = ata_std_qc_defer,
+	.qc_defer		= ata_std_qc_defer,
 	.qc_prep		= ata_noop_qc_prep,
 	.qc_issue		= sas_ata_qc_issue,
 	.qc_fill_rtf		= sas_ata_qc_fill_rtf,
diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index 90a3ca5..a68c8cd 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -430,7 +430,7 @@ struct lpfc_vport {
 	struct dentry *debug_nodelist;
 	struct dentry *vport_debugfs_root;
 	struct lpfc_debugfs_trc *disc_trc;
-	atomic_t disc_trc_cnt;
+	atomic_unchecked_t disc_trc_cnt;
 #endif
 	uint8_t stat_data_enabled;
 	uint8_t stat_data_blocked;
@@ -891,8 +891,8 @@ struct lpfc_hba {
 	struct timer_list fabric_block_timer;
 	unsigned long bit_flags;
 #define	FABRIC_COMANDS_BLOCKED	0
-	atomic_t num_rsrc_err;
-	atomic_t num_cmd_success;
+	atomic_unchecked_t num_rsrc_err;
+	atomic_unchecked_t num_cmd_success;
 	unsigned long last_rsrc_error_time;
 	unsigned long last_ramp_down_time;
 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
@@ -927,7 +927,7 @@ struct lpfc_hba {
 
 	struct dentry *debug_slow_ring_trc;
 	struct lpfc_debugfs_trc *slow_ring_trc;
-	atomic_t slow_ring_trc_cnt;
+	atomic_unchecked_t slow_ring_trc_cnt;
 	/* iDiag debugfs sub-directory */
 	struct dentry *idiag_root;
 	struct dentry *idiag_pci_cfg;
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
index a63542b..80692ee 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.c
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -106,7 +106,7 @@ MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc,
 
 #include <linux/debugfs.h>
 
-static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0);
+static atomic_unchecked_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0);
 static unsigned long lpfc_debugfs_start_time = 0L;
 
 /* iDiag */
@@ -147,7 +147,7 @@ lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size)
 	lpfc_debugfs_enable = 0;
 
 	len = 0;
-	index = (atomic_read(&vport->disc_trc_cnt) + 1) &
+	index = (atomic_read_unchecked(&vport->disc_trc_cnt) + 1) &
 		(lpfc_debugfs_max_disc_trc - 1);
 	for (i = index; i < lpfc_debugfs_max_disc_trc; i++) {
 		dtp = vport->disc_trc + i;
@@ -213,7 +213,7 @@ lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size)
 	lpfc_debugfs_enable = 0;
 
 	len = 0;
-	index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) &
+	index = (atomic_read_unchecked(&phba->slow_ring_trc_cnt) + 1) &
 		(lpfc_debugfs_max_slow_ring_trc - 1);
 	for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) {
 		dtp = phba->slow_ring_trc + i;
@@ -646,14 +646,14 @@ lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt,
 		!vport || !vport->disc_trc)
 		return;
 
-	index = atomic_inc_return(&vport->disc_trc_cnt) &
+	index = atomic_inc_return_unchecked(&vport->disc_trc_cnt) &
 		(lpfc_debugfs_max_disc_trc - 1);
 	dtp = vport->disc_trc + index;
 	dtp->fmt = fmt;
 	dtp->data1 = data1;
 	dtp->data2 = data2;
 	dtp->data3 = data3;
-	dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
+	dtp->seq_cnt = atomic_inc_return_unchecked(&lpfc_debugfs_seq_trc_cnt);
 	dtp->jif = jiffies;
 #endif
 	return;
@@ -684,14 +684,14 @@ lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt,
 		!phba || !phba->slow_ring_trc)
 		return;
 
-	index = atomic_inc_return(&phba->slow_ring_trc_cnt) &
+	index = atomic_inc_return_unchecked(&phba->slow_ring_trc_cnt) &
 		(lpfc_debugfs_max_slow_ring_trc - 1);
 	dtp = phba->slow_ring_trc + index;
 	dtp->fmt = fmt;
 	dtp->data1 = data1;
 	dtp->data2 = data2;
 	dtp->data3 = data3;
-	dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
+	dtp->seq_cnt = atomic_inc_return_unchecked(&lpfc_debugfs_seq_trc_cnt);
 	dtp->jif = jiffies;
 #endif
 	return;
@@ -4268,7 +4268,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
 						 "slow_ring buffer\n");
 				goto debug_failed;
 			}
-			atomic_set(&phba->slow_ring_trc_cnt, 0);
+			atomic_set_unchecked(&phba->slow_ring_trc_cnt, 0);
 			memset(phba->slow_ring_trc, 0,
 				(sizeof(struct lpfc_debugfs_trc) *
 				lpfc_debugfs_max_slow_ring_trc));
@@ -4314,7 +4314,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
 				 "buffer\n");
 		goto debug_failed;
 	}
-	atomic_set(&vport->disc_trc_cnt, 0);
+	atomic_set_unchecked(&vport->disc_trc_cnt, 0);
 
 	snprintf(name, sizeof(name), "discovery_trace");
 	vport->debug_disc_trc =
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index f57d02c..6ba534b 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -11028,7 +11028,7 @@ lpfc_pci_resume_one(struct pci_dev *pdev)
  * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
  **/
 static pci_ers_result_t
-lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
+lpfc_io_error_detected(struct pci_dev *pdev, enum pci_channel_state state)
 {
 	struct Scsi_Host *shost = pci_get_drvdata(pdev);
 	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
@@ -11436,8 +11436,10 @@ lpfc_init(void)
 			"misc_register returned with status %d", error);
 
 	if (lpfc_enable_npiv) {
-		lpfc_transport_functions.vport_create = lpfc_vport_create;
-		lpfc_transport_functions.vport_delete = lpfc_vport_delete;
+		pax_open_kernel();
+		const_cast(lpfc_transport_functions.vport_create) = lpfc_vport_create;
+		const_cast(lpfc_transport_functions.vport_delete) = lpfc_vport_delete;
+		pax_close_kernel();
 	}
 	lpfc_transport_template =
 				fc_attach_transport(&lpfc_transport_functions);
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 3bd0be6..f9b0725e 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -261,7 +261,7 @@ lpfc_rampdown_queue_depth(struct lpfc_hba *phba)
 	unsigned long expires;
 
 	spin_lock_irqsave(&phba->hbalock, flags);
-	atomic_inc(&phba->num_rsrc_err);
+	atomic_inc_unchecked(&phba->num_rsrc_err);
 	phba->last_rsrc_error_time = jiffies;
 
 	expires = phba->last_ramp_down_time + QUEUE_RAMP_DOWN_INTERVAL;
@@ -303,8 +303,8 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba)
 	unsigned long num_rsrc_err, num_cmd_success;
 	int i;
 
-	num_rsrc_err = atomic_read(&phba->num_rsrc_err);
-	num_cmd_success = atomic_read(&phba->num_cmd_success);
+	num_rsrc_err = atomic_read_unchecked(&phba->num_rsrc_err);
+	num_cmd_success = atomic_read_unchecked(&phba->num_cmd_success);
 
 	/*
 	 * The error and success command counters are global per
@@ -331,8 +331,8 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba)
 			}
 		}
 	lpfc_destroy_vport_work_array(phba, vports);
-	atomic_set(&phba->num_rsrc_err, 0);
-	atomic_set(&phba->num_cmd_success, 0);
+	atomic_set_unchecked(&phba->num_rsrc_err, 0);
+	atomic_set_unchecked(&phba->num_cmd_success, 0);
 }
 
 /**
diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h
index fce414a..3c5884e 100644
--- a/drivers/scsi/megaraid/megaraid_sas.h
+++ b/drivers/scsi/megaraid/megaraid_sas.h
@@ -2046,7 +2046,7 @@ struct megasas_instance {
 	s8 init_id;
 
 	u16 max_num_sge;
-	u16 max_fw_cmds;
+	u16 max_fw_cmds __intentional_overflow(-1);
 	u16 max_mfi_cmds;
 	u16 max_scsi_cmds;
 	u16 ldio_threshold;
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
index 8c44b9c..a55ec7f 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -104,7 +104,7 @@ _base_get_ioc_facts(struct MPT3SAS_ADAPTER *ioc, int sleep_flag);
  *
  */
 static int
-_scsih_set_fwfault_debug(const char *val, struct kernel_param *kp)
+_scsih_set_fwfault_debug(const char *val, const struct kernel_param *kp)
 {
 	int ret = param_set_int(val, kp);
 	struct MPT3SAS_ADAPTER *ioc;
diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
index e0e4920..62b1b8e1 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -282,7 +282,7 @@ struct _scsi_io_transfer {
  * Note: The logging levels are defined in mpt3sas_debug.h.
  */
 static int
-_scsih_set_debug_level(const char *val, struct kernel_param *kp)
+_scsih_set_debug_level(const char *val, const struct kernel_param *kp)
 {
 	int ret = param_set_int(val, kp);
 	struct MPT3SAS_ADAPTER *ioc;
@@ -8910,7 +8910,7 @@ scsih_resume(struct pci_dev *pdev)
  *      PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
  */
 pci_ers_result_t
-scsih_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
+scsih_pci_error_detected(struct pci_dev *pdev, enum pci_channel_state state)
 {
 	struct Scsi_Host *shost = pci_get_drvdata(pdev);
 	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index b2a88200..d66f0cc 100644
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -201,8 +201,8 @@ static int pmcraid_slave_alloc(struct scsi_device *scsi_dev)
 		res->scsi_dev = scsi_dev;
 		scsi_dev->hostdata = res;
 		res->change_detected = 0;
-		atomic_set(&res->read_failures, 0);
-		atomic_set(&res->write_failures, 0);
+		atomic_set_unchecked(&res->read_failures, 0);
+		atomic_set_unchecked(&res->write_failures, 0);
 		rc = 0;
 	}
 	spin_unlock_irqrestore(&pinstance->resource_lock, lock_flags);
@@ -557,8 +557,9 @@ static void pmcraid_reset_type(struct pmcraid_instance *pinstance)
 
 static void pmcraid_ioa_reset(struct pmcraid_cmd *);
 
-static void pmcraid_bist_done(struct pmcraid_cmd *cmd)
+static void pmcraid_bist_done(unsigned long _cmd)
 {
+	struct pmcraid_cmd *cmd = (struct pmcraid_cmd *)_cmd;
 	struct pmcraid_instance *pinstance = cmd->drv_inst;
 	unsigned long lock_flags;
 	int rc;
@@ -573,8 +574,7 @@ static void pmcraid_bist_done(struct pmcraid_cmd *cmd)
 		cmd->timer.expires = jiffies + cmd->time_left;
 		cmd->time_left = 0;
 		cmd->timer.data = (unsigned long)cmd;
-		cmd->timer.function =
-			(void (*)(unsigned long))pmcraid_bist_done;
+		cmd->timer.function = pmcraid_bist_done;
 		add_timer(&cmd->timer);
 	} else {
 		cmd->time_left = 0;
@@ -607,7 +607,7 @@ static void pmcraid_start_bist(struct pmcraid_cmd *cmd)
 	cmd->time_left = msecs_to_jiffies(PMCRAID_BIST_TIMEOUT);
 	cmd->timer.data = (unsigned long)cmd;
 	cmd->timer.expires = jiffies + msecs_to_jiffies(PMCRAID_BIST_TIMEOUT);
-	cmd->timer.function = (void (*)(unsigned long))pmcraid_bist_done;
+	cmd->timer.function = pmcraid_bist_done;
 	add_timer(&cmd->timer);
 }
 
@@ -617,8 +617,9 @@ static void pmcraid_start_bist(struct pmcraid_cmd *cmd)
  * Return value
  *  None
  */
-static void pmcraid_reset_alert_done(struct pmcraid_cmd *cmd)
+static void pmcraid_reset_alert_done(unsigned long _cmd)
 {
+	struct pmcraid_cmd *cmd = (struct pmcraid_cmd *)_cmd;
 	struct pmcraid_instance *pinstance = cmd->drv_inst;
 	u32 status = ioread32(pinstance->ioa_status);
 	unsigned long lock_flags;
@@ -639,8 +640,7 @@ static void pmcraid_reset_alert_done(struct pmcraid_cmd *cmd)
 		cmd->time_left -= PMCRAID_CHECK_FOR_RESET_TIMEOUT;
 		cmd->timer.data = (unsigned long)cmd;
 		cmd->timer.expires = jiffies + PMCRAID_CHECK_FOR_RESET_TIMEOUT;
-		cmd->timer.function =
-			(void (*)(unsigned long))pmcraid_reset_alert_done;
+		cmd->timer.function = pmcraid_reset_alert_done;
 		add_timer(&cmd->timer);
 	}
 }
@@ -678,8 +678,7 @@ static void pmcraid_reset_alert(struct pmcraid_cmd *cmd)
 		cmd->time_left = PMCRAID_RESET_TIMEOUT;
 		cmd->timer.data = (unsigned long)cmd;
 		cmd->timer.expires = jiffies + PMCRAID_CHECK_FOR_RESET_TIMEOUT;
-		cmd->timer.function =
-			(void (*)(unsigned long))pmcraid_reset_alert_done;
+		cmd->timer.function = pmcraid_reset_alert_done;
 		add_timer(&cmd->timer);
 
 		iowrite32(DOORBELL_IOA_RESET_ALERT,
@@ -704,8 +703,9 @@ static void pmcraid_reset_alert(struct pmcraid_cmd *cmd)
  * Return value:
  *   None
  */
-static void pmcraid_timeout_handler(struct pmcraid_cmd *cmd)
+static void pmcraid_timeout_handler(unsigned long _cmd)
 {
+	struct pmcraid_cmd *cmd = (struct pmcraid_cmd *)_cmd;
 	struct pmcraid_instance *pinstance = cmd->drv_inst;
 	unsigned long lock_flags;
 
@@ -920,7 +920,7 @@ static void pmcraid_send_cmd(
 	struct pmcraid_cmd *cmd,
 	void (*cmd_done) (struct pmcraid_cmd *),
 	unsigned long timeout,
-	void (*timeout_func) (struct pmcraid_cmd *)
+	void (*timeout_func) (unsigned long)
 )
 {
 	/* initialize done function */
@@ -930,7 +930,7 @@ static void pmcraid_send_cmd(
 		/* setup timeout handler */
 		cmd->timer.data = (unsigned long)cmd;
 		cmd->timer.expires = jiffies + timeout;
-		cmd->timer.function = (void (*)(unsigned long))timeout_func;
+		cmd->timer.function = timeout_func;
 		add_timer(&cmd->timer);
 	}
 
@@ -1968,7 +1968,7 @@ static void pmcraid_soft_reset(struct pmcraid_cmd *cmd)
 	cmd->timer.data = (unsigned long)cmd;
 	cmd->timer.expires = jiffies +
 			     msecs_to_jiffies(PMCRAID_TRANSOP_TIMEOUT);
-	cmd->timer.function = (void (*)(unsigned long))pmcraid_timeout_handler;
+	cmd->timer.function = pmcraid_timeout_handler;
 
 	if (!timer_pending(&cmd->timer))
 		add_timer(&cmd->timer);
@@ -2641,9 +2641,9 @@ static int pmcraid_error_handler(struct pmcraid_cmd *cmd)
 
 	/* If this was a SCSI read/write command keep count of errors */
 	if (SCSI_CMD_TYPE(scsi_cmd->cmnd[0]) == SCSI_READ_CMD)
-		atomic_inc(&res->read_failures);
+		atomic_inc_unchecked(&res->read_failures);
 	else if (SCSI_CMD_TYPE(scsi_cmd->cmnd[0]) == SCSI_WRITE_CMD)
-		atomic_inc(&res->write_failures);
+		atomic_inc_unchecked(&res->write_failures);
 
 	if (!RES_IS_GSCSI(res->cfg_entry) &&
 		masked_ioasc != PMCRAID_IOASC_HW_DEVICE_BUS_STATUS_ERROR) {
@@ -3469,7 +3469,7 @@ static int pmcraid_queuecommand_lck(
 	 * block of scsi_cmd which is re-used (e.g. cancel/abort), which uses
 	 * hrrq_id assigned here in queuecommand
 	 */
-	ioarcb->hrrq_id = atomic_add_return(1, &(pinstance->last_message_id)) %
+	ioarcb->hrrq_id = atomic_add_return_unchecked(1, &(pinstance->last_message_id)) %
 			  pinstance->num_hrrq;
 	cmd->cmd_done = pmcraid_io_done;
 
@@ -3783,7 +3783,7 @@ static long pmcraid_ioctl_passthrough(
 	 * block of scsi_cmd which is re-used (e.g. cancel/abort), which uses
 	 * hrrq_id assigned here in queuecommand
 	 */
-	ioarcb->hrrq_id = atomic_add_return(1, &(pinstance->last_message_id)) %
+	ioarcb->hrrq_id = atomic_add_return_unchecked(1, &(pinstance->last_message_id)) %
 			  pinstance->num_hrrq;
 
 	if (request_size) {
@@ -4420,7 +4420,7 @@ static void pmcraid_worker_function(struct work_struct *workp)
 
 	pinstance = container_of(workp, struct pmcraid_instance, worker_q);
 	/* add resources only after host is added into system */
-	if (!atomic_read(&pinstance->expose_resources))
+	if (!atomic_read_unchecked(&pinstance->expose_resources))
 		return;
 
 	fw_version = be16_to_cpu(pinstance->inq_data->fw_version);
@@ -5237,8 +5237,8 @@ static int pmcraid_init_instance(struct pci_dev *pdev, struct Scsi_Host *host,
 	init_waitqueue_head(&pinstance->reset_wait_q);
 
 	atomic_set(&pinstance->outstanding_cmds, 0);
-	atomic_set(&pinstance->last_message_id, 0);
-	atomic_set(&pinstance->expose_resources, 0);
+	atomic_set_unchecked(&pinstance->last_message_id, 0);
+	atomic_set_unchecked(&pinstance->expose_resources, 0);
 
 	INIT_LIST_HEAD(&pinstance->free_res_q);
 	INIT_LIST_HEAD(&pinstance->used_res_q);
@@ -5949,7 +5949,7 @@ static int pmcraid_probe(struct pci_dev *pdev,
 	/* Schedule worker thread to handle CCN and take care of adding and
 	 * removing devices to OS
 	 */
-	atomic_set(&pinstance->expose_resources, 1);
+	atomic_set_unchecked(&pinstance->expose_resources, 1);
 	schedule_work(&pinstance->worker_q);
 	return rc;
 
diff --git a/drivers/scsi/pmcraid.h b/drivers/scsi/pmcraid.h
index e1d150f..6c6df44 100644
--- a/drivers/scsi/pmcraid.h
+++ b/drivers/scsi/pmcraid.h
@@ -748,7 +748,7 @@ struct pmcraid_instance {
 	struct pmcraid_isr_param hrrq_vector[PMCRAID_NUM_MSIX_VECTORS];
 
 	/* Message id as filled in last fired IOARCB, used to identify HRRQ */
-	atomic_t last_message_id;
+	atomic_unchecked_t last_message_id;
 
 	/* configuration table */
 	struct pmcraid_config_table *cfg_table;
@@ -777,7 +777,7 @@ struct pmcraid_instance {
 	atomic_t outstanding_cmds;
 
 	/* should add/delete resources to mid-layer now ?*/
-	atomic_t expose_resources;
+	atomic_unchecked_t expose_resources;
 
 
 
@@ -813,8 +813,8 @@ struct pmcraid_resource_entry {
 		struct pmcraid_config_table_entry_ext cfg_entry_ext;
 	};
 	struct scsi_device *scsi_dev;	/* Link scsi_device structure */
-	atomic_t read_failures;		/* count of failed READ commands */
-	atomic_t write_failures;	/* count of failed WRITE commands */
+	atomic_unchecked_t read_failures;	/* count of failed READ commands */
+	atomic_unchecked_t write_failures;	/* count of failed WRITE commands */
 
 	/* To indicate add/delete/modify during CCN */
 	u8 change_detected;
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 4dc06a13..5d012f6 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -2252,7 +2252,7 @@ qla24xx_vport_disable(struct fc_vport *fc_vport, bool disable)
 	return 0;
 }
 
-struct fc_function_template qla2xxx_transport_functions = {
+fc_function_template_no_const qla2xxx_transport_functions = {
 
 	.show_host_node_name = 1,
 	.show_host_port_name = 1,
@@ -2300,7 +2300,7 @@ struct fc_function_template qla2xxx_transport_functions = {
 	.bsg_timeout = qla24xx_bsg_timeout,
 };
 
-struct fc_function_template qla2xxx_transport_vport_functions = {
+fc_function_template_no_const qla2xxx_transport_vport_functions = {
 
 	.show_host_node_name = 1,
 	.show_host_port_name = 1,
diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index fe94377..625fa13 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -178,8 +178,8 @@ extern void qla2x00_disable_board_on_pci_error(struct work_struct *);
  */
 extern struct scsi_host_template qla2xxx_driver_template;
 extern struct scsi_transport_template *qla2xxx_transport_vport_template;
-extern void qla2x00_timer(scsi_qla_host_t *);
-extern void qla2x00_start_timer(scsi_qla_host_t *, void *, unsigned long);
+extern void qla2x00_timer(unsigned long);
+extern void qla2x00_start_timer(scsi_qla_host_t *, void (*)(unsigned long), unsigned long);
 extern void qla24xx_deallocate_vp_id(scsi_qla_host_t *);
 extern int qla24xx_disable_vp (scsi_qla_host_t *);
 extern int qla24xx_enable_vp (scsi_qla_host_t *);
@@ -580,8 +580,8 @@ extern void qla2x00_get_sym_node_name(scsi_qla_host_t *, uint8_t *, size_t);
 struct device_attribute;
 extern struct device_attribute *qla2x00_host_attrs[];
 struct fc_function_template;
-extern struct fc_function_template qla2xxx_transport_functions;
-extern struct fc_function_template qla2xxx_transport_vport_functions;
+extern fc_function_template_no_const qla2xxx_transport_functions;
+extern fc_function_template_no_const qla2xxx_transport_vport_functions;
 extern void qla2x00_alloc_sysfs_attr(scsi_qla_host_t *);
 extern void qla2x00_free_sysfs_attr(scsi_qla_host_t *, bool);
 extern void qla2x00_init_host_attr(scsi_qla_host_t *);
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 7c0b60c..0c2c9de 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -298,12 +298,12 @@ struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
  */
 
 __inline__ void
-qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval)
+qla2x00_start_timer(scsi_qla_host_t *vha, void (*func)(unsigned long), unsigned long interval)
 {
 	init_timer(&vha->timer);
 	vha->timer.expires = jiffies + interval * HZ;
 	vha->timer.data = (unsigned long)vha;
-	vha->timer.function = (void (*)(unsigned long))func;
+	vha->timer.function = func;
 	add_timer(&vha->timer);
 	vha->timer_active = 1;
 }
@@ -1448,8 +1448,10 @@ qla2x00_config_dma_addressing(struct qla_hw_data *ha)
 		    !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
 			/* Ok, a 64bit DMA mask is applicable. */
 			ha->flags.enable_64bit_addressing = 1;
-			ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
-			ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
+			pax_open_kernel();
+			const_cast(ha->isp_ops->calc_req_entries) = qla2x00_calc_iocbs_64;
+			const_cast(ha->isp_ops->build_iocbs) = qla2x00_build_scsi_iocbs_64;
+			pax_close_kernel();
 			return;
 		}
 	}
@@ -5300,8 +5302,9 @@ qla2x00_rst_aen(scsi_qla_host_t *vha)
 * Context: Interrupt
 ***************************************************************************/
 void
-qla2x00_timer(scsi_qla_host_t *vha)
+qla2x00_timer(unsigned long _vha)
 {
+	scsi_qla_host_t *vha = (scsi_qla_host_t *)_vha;
 	unsigned long	cpu_flags = 0;
 	int		start_dpc = 0;
 	int		index;
@@ -5563,7 +5566,7 @@ qla2x00_release_firmware(void)
 }
 
 static pci_ers_result_t
-qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
+qla2xxx_pci_error_detected(struct pci_dev *pdev, enum pci_channel_state state)
 {
 	scsi_qla_host_t *vha = pci_get_drvdata(pdev);
 	struct qla_hw_data *ha = vha->hw;
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index 8a44d15..a3a925a 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -668,7 +668,7 @@ static int qlt_reset(struct scsi_qla_host *vha, void *iocb, int mcmd)
 	loop_id = le16_to_cpu(n->u.isp24.nport_handle);
 	if (loop_id == 0xFFFF) {
 		/* Global event */
-		atomic_inc(&vha->vha_tgt.qla_tgt->tgt_global_resets_count);
+		atomic_inc_unchecked(&vha->vha_tgt.qla_tgt->tgt_global_resets_count);
 		spin_lock_irqsave(&ha->tgt.sess_lock, flags);
 		qlt_clear_tgt_db(vha->vha_tgt.qla_tgt);
 		spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
@@ -835,8 +835,9 @@ static void qlt_undelete_sess(struct qla_tgt_sess *sess)
 	sess->deleted = 0;
 }
 
-static void qlt_del_sess_work_fn(struct delayed_work *work)
+static void qlt_del_sess_work_fn(struct work_struct *_work)
 {
+	struct delayed_work *work = container_of(_work, struct delayed_work, work);
 	struct qla_tgt *tgt = container_of(work, struct qla_tgt,
 	    sess_del_work);
 	struct scsi_qla_host *vha = tgt->vha;
@@ -5817,7 +5818,7 @@ static struct qla_tgt_sess *qlt_make_local_sess(struct scsi_qla_host *vha,
 
 retry:
 	global_resets =
-	    atomic_read(&vha->vha_tgt.qla_tgt->tgt_global_resets_count);
+	    atomic_read_unchecked(&vha->vha_tgt.qla_tgt->tgt_global_resets_count);
 
 	rc = qla24xx_get_loop_id(vha, s_id, &loop_id);
 	if (rc != 0) {
@@ -5856,12 +5857,12 @@ retry:
 	}
 
 	if (global_resets !=
-	    atomic_read(&vha->vha_tgt.qla_tgt->tgt_global_resets_count)) {
+	    atomic_read_unchecked(&vha->vha_tgt.qla_tgt->tgt_global_resets_count)) {
 		ql_dbg(ql_dbg_tgt_mgt, vha, 0xf043,
 		    "qla_target(%d): global reset during session discovery "
 		    "(counter was %d, new %d), retrying", vha->vp_idx,
 		    global_resets,
-		    atomic_read(&vha->vha_tgt.
+		    atomic_read_unchecked(&vha->vha_tgt.
 			qla_tgt->tgt_global_resets_count));
 		goto retry;
 	}
@@ -6074,8 +6075,7 @@ int qlt_add_target(struct qla_hw_data *ha, struct scsi_qla_host *base_vha)
 	init_waitqueue_head(&tgt->waitQ);
 	INIT_LIST_HEAD(&tgt->sess_list);
 	INIT_LIST_HEAD(&tgt->del_sess_list);
-	INIT_DELAYED_WORK(&tgt->sess_del_work,
-		(void (*)(struct work_struct *))qlt_del_sess_work_fn);
+	INIT_DELAYED_WORK(&tgt->sess_del_work, qlt_del_sess_work_fn);
 	spin_lock_init(&tgt->sess_work_lock);
 	INIT_WORK(&tgt->sess_work, qlt_sess_work_fn);
 	INIT_LIST_HEAD(&tgt->sess_works_list);
@@ -6083,7 +6083,7 @@ int qlt_add_target(struct qla_hw_data *ha, struct scsi_qla_host *base_vha)
 	INIT_LIST_HEAD(&tgt->srr_ctio_list);
 	INIT_LIST_HEAD(&tgt->srr_imm_list);
 	INIT_WORK(&tgt->srr_work, qlt_handle_srr_work);
-	atomic_set(&tgt->tgt_global_resets_count, 0);
+	atomic_set_unchecked(&tgt->tgt_global_resets_count, 0);
 
 	base_vha->vha_tgt.qla_tgt = tgt;
 
diff --git a/drivers/scsi/qla2xxx/qla_target.h b/drivers/scsi/qla2xxx/qla_target.h
index d857fee..01fc070 100644
--- a/drivers/scsi/qla2xxx/qla_target.h
+++ b/drivers/scsi/qla2xxx/qla_target.h
@@ -877,7 +877,7 @@ struct qla_tgt {
 	struct list_head srr_imm_list;
 	struct work_struct srr_work;
 
-	atomic_t tgt_global_resets_count;
+	atomic_unchecked_t tgt_global_resets_count;
 
 	struct list_head tgt_list_entry;
 };
diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h
index a7cfc27..151f483 100644
--- a/drivers/scsi/qla4xxx/ql4_def.h
+++ b/drivers/scsi/qla4xxx/ql4_def.h
@@ -306,7 +306,7 @@ struct ddb_entry {
 					   * (4000 only) */
 	atomic_t relogin_timer;		  /* Max Time to wait for
 					   * relogin to complete */
-	atomic_t relogin_retry_count;	  /* Num of times relogin has been
+	atomic_unchecked_t relogin_retry_count;	  /* Num of times relogin has been
 					   * retried */
 	uint32_t default_time2wait;	  /* Default Min time between
 					   * relogins (+aens) */
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 01c3610..f287da9 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -3956,7 +3956,7 @@ exit_session_conn_param:
  * Timer routines
  */
 
-static void qla4xxx_start_timer(struct scsi_qla_host *ha, void *func,
+static void qla4xxx_start_timer(struct scsi_qla_host *ha, void (*func)(unsigned long),
 				unsigned long interval)
 {
 	DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n",
@@ -3964,7 +3964,7 @@ static void qla4xxx_start_timer(struct scsi_qla_host *ha, void *func,
 	init_timer(&ha->timer);
 	ha->timer.expires = jiffies + interval * HZ;
 	ha->timer.data = (unsigned long)ha;
-	ha->timer.function = (void (*)(unsigned long))func;
+	ha->timer.function = func;
 	add_timer(&ha->timer);
 	ha->timer_active = 1;
 }
@@ -4490,12 +4490,12 @@ static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
 		 */
 		if (!iscsi_is_session_online(cls_sess)) {
 			/* Reset retry relogin timer */
-			atomic_inc(&ddb_entry->relogin_retry_count);
+			atomic_inc_unchecked(&ddb_entry->relogin_retry_count);
 			DEBUG2(ql4_printk(KERN_INFO, ha,
 				"%s: index[%d] relogin timed out-retrying"
 				" relogin (%d), retry (%d)\n", __func__,
 				ddb_entry->fw_ddb_index,
-				atomic_read(&ddb_entry->relogin_retry_count),
+				atomic_read_unchecked(&ddb_entry->relogin_retry_count),
 				ddb_entry->default_time2wait + 4));
 			set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
 			atomic_set(&ddb_entry->retry_relogin_timer,
@@ -4508,8 +4508,9 @@ static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
  * qla4xxx_timer - checks every second for work to do.
  * @ha: Pointer to host adapter structure.
  **/
-static void qla4xxx_timer(struct scsi_qla_host *ha)
+static void qla4xxx_timer(unsigned long _ha)
 {
+	struct scsi_qla_host *ha = (struct scsi_qla_host *)_ha;
 	int start_dpc = 0;
 	uint16_t w;
 
@@ -6603,7 +6604,7 @@ static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha,
 
 	atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
 	atomic_set(&ddb_entry->relogin_timer, 0);
-	atomic_set(&ddb_entry->relogin_retry_count, 0);
+	atomic_set_unchecked(&ddb_entry->relogin_retry_count, 0);
 	def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout);
 	ddb_entry->default_relogin_timeout =
 		(def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ?
@@ -9557,7 +9558,7 @@ exit_host_reset:
  * RECOVERED - driver's pci_resume()
  */
 static pci_ers_result_t
-qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
+qla4xxx_pci_error_detected(struct pci_dev *pdev, enum pci_channel_state state)
 {
 	struct scsi_qla_host *ha = pci_get_drvdata(pdev);
 
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index 1deb6ad..3057db5 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -591,7 +591,7 @@ void scsi_finish_command(struct scsi_cmnd *cmd)
 
 	good_bytes = scsi_bufflen(cmd);
         if (cmd->request->cmd_type != REQ_TYPE_BLOCK_PC) {
-		int old_good_bytes = good_bytes;
+		unsigned int old_good_bytes = good_bytes;
 		drv = scsi_cmd_to_driver(cmd);
 		if (drv->done)
 			good_bytes = drv->done(cmd);
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index f704d02..18cad07 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1602,7 +1602,7 @@ static void scsi_kill_request(struct request *req, struct request_queue *q)
 	shost = sdev->host;
 	scsi_init_cmd_errh(cmd);
 	cmd->result = DID_NO_CONNECT << 16;
-	atomic_inc(&cmd->device->iorequest_cnt);
+	atomic_inc_unchecked(&cmd->device->iorequest_cnt);
 
 	/*
 	 * SCSI request completion path will do scsi_device_unbusy(),
@@ -1625,9 +1625,9 @@ static void scsi_softirq_done(struct request *rq)
 
 	INIT_LIST_HEAD(&cmd->eh_entry);
 
-	atomic_inc(&cmd->device->iodone_cnt);
+	atomic_inc_unchecked(&cmd->device->iodone_cnt);
 	if (cmd->result)
-		atomic_inc(&cmd->device->ioerr_cnt);
+		atomic_inc_unchecked(&cmd->device->ioerr_cnt);
 
 	disposition = scsi_decide_disposition(cmd);
 	if (disposition != SUCCESS &&
@@ -1668,7 +1668,7 @@ static int scsi_dispatch_cmd(struct scsi_cmnd *cmd)
 	struct Scsi_Host *host = cmd->device->host;
 	int rtn = 0;
 
-	atomic_inc(&cmd->device->iorequest_cnt);
+	atomic_inc_unchecked(&cmd->device->iorequest_cnt);
 
 	/* check if the device is still usable */
 	if (unlikely(cmd->device->sdev_state == SDEV_DEL)) {
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index c7e4b5e..ee7495b 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -847,7 +847,7 @@ show_iostat_##field(struct device *dev, struct device_attribute *attr,	\
 		    char *buf)						\
 {									\
 	struct scsi_device *sdev = to_scsi_device(dev);			\
-	unsigned long long count = atomic_read(&sdev->field);		\
+	unsigned long long count = atomic_read_unchecked(&sdev->field);	\
 	return snprintf(buf, 20, "0x%llx\n", count);			\
 }									\
 static DEVICE_ATTR(field, S_IRUGO, show_iostat_##field, NULL)
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
index 8a88226..0d26fd1 100644
--- a/drivers/scsi/scsi_transport_fc.c
+++ b/drivers/scsi/scsi_transport_fc.c
@@ -502,7 +502,7 @@ static DECLARE_TRANSPORT_CLASS(fc_vport_class,
  * Netlink Infrastructure
  */
 
-static atomic_t fc_event_seq;
+static atomic_unchecked_t fc_event_seq;
 
 /**
  * fc_get_event_number - Obtain the next sequential FC event number
@@ -515,7 +515,7 @@ static atomic_t fc_event_seq;
 u32
 fc_get_event_number(void)
 {
-	return atomic_add_return(1, &fc_event_seq);
+	return atomic_add_return_unchecked(1, &fc_event_seq);
 }
 EXPORT_SYMBOL(fc_get_event_number);
 
@@ -659,7 +659,7 @@ static __init int fc_transport_init(void)
 {
 	int error;
 
-	atomic_set(&fc_event_seq, 0);
+	atomic_set_unchecked(&fc_event_seq, 0);
 
 	error = transport_class_register(&fc_host_class);
 	if (error)
@@ -849,7 +849,7 @@ static int fc_str_to_dev_loss(const char *buf, unsigned long *val)
 	char *cp;
 
 	*val = simple_strtoul(buf, &cp, 0);
-	if ((*cp && (*cp != '\n')) || (*val < 0))
+	if (*cp && (*cp != '\n'))
 		return -EINVAL;
 	/*
 	 * Check for overflow; dev_loss_tmo is u32
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 4414816..95c7991 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -79,7 +79,7 @@ struct iscsi_internal {
 	struct transport_container session_cont;
 };
 
-static atomic_t iscsi_session_nr; /* sysfs session id for next new session */
+static atomic_unchecked_t iscsi_session_nr; /* sysfs session id for next new session */
 static struct workqueue_struct *iscsi_eh_timer_workq;
 
 static DEFINE_IDA(iscsi_sess_ida);
@@ -2074,7 +2074,7 @@ int iscsi_add_session(struct iscsi_cls_session *session, unsigned int target_id)
 	int err;
 
 	ihost = shost->shost_data;
-	session->sid = atomic_add_return(1, &iscsi_session_nr);
+	session->sid = atomic_add_return_unchecked(1, &iscsi_session_nr);
 
 	if (target_id == ISCSI_MAX_TARGET) {
 		id = ida_simple_get(&iscsi_sess_ida, 0, 0, GFP_KERNEL);
@@ -4524,7 +4524,7 @@ static __init int iscsi_transport_init(void)
 	printk(KERN_INFO "Loading iSCSI transport class v%s.\n",
 		ISCSI_TRANSPORT_VERSION);
 
-	atomic_set(&iscsi_session_nr, 0);
+	atomic_set_unchecked(&iscsi_session_nr, 0);
 
 	err = class_register(&iscsi_transport_class);
 	if (err)
diff --git a/drivers/scsi/scsi_transport_spi.c b/drivers/scsi/scsi_transport_spi.c
index 319868f..a00cda5 100644
--- a/drivers/scsi/scsi_transport_spi.c
+++ b/drivers/scsi/scsi_transport_spi.c
@@ -758,7 +758,7 @@ spi_dv_device_compare_inquiry(struct scsi_device *sdev, u8 *buffer,
 static enum spi_compare_returns
 spi_dv_retrain(struct scsi_device *sdev, u8 *buffer, u8 *ptr,
 	       enum spi_compare_returns 
-	       (*compare_fn)(struct scsi_device *, u8 *, u8 *, int))
+	       (*compare_fn)(struct scsi_device *, u8 *, u8 *, const int))
 {
 	struct spi_internal *i = to_spi_internal(sdev->host->transportt);
 	struct scsi_target *starget = sdev->sdev_target;
diff --git a/drivers/scsi/scsi_transport_srp.c b/drivers/scsi/scsi_transport_srp.c
index e3cd3ec..97ab643 100644
--- a/drivers/scsi/scsi_transport_srp.c
+++ b/drivers/scsi/scsi_transport_srp.c
@@ -35,7 +35,7 @@
 #include "scsi_priv.h"
 
 struct srp_host_attrs {
-	atomic_t next_port_id;
+	atomic_unchecked_t next_port_id;
 };
 #define to_srp_host_attrs(host)	((struct srp_host_attrs *)(host)->shost_data)
 
@@ -105,7 +105,7 @@ static int srp_host_setup(struct transport_container *tc, struct device *dev,
 	struct Scsi_Host *shost = dev_to_shost(dev);
 	struct srp_host_attrs *srp_host = to_srp_host_attrs(shost);
 
-	atomic_set(&srp_host->next_port_id, 0);
+	atomic_set_unchecked(&srp_host->next_port_id, 0);
 	return 0;
 }
 
@@ -226,7 +226,7 @@ static ssize_t show_reconnect_delay(struct device *dev,
 
 static ssize_t store_reconnect_delay(struct device *dev,
 				     struct device_attribute *attr,
-				     const char *buf, const size_t count)
+				     const char *buf, size_t count)
 {
 	struct srp_rport *rport = transport_class_to_srp_rport(dev);
 	int res, delay;
@@ -752,7 +752,7 @@ struct srp_rport *srp_rport_add(struct Scsi_Host *shost,
 			  rport_fast_io_fail_timedout);
 	INIT_DELAYED_WORK(&rport->dev_loss_work, rport_dev_loss_timedout);
 
-	id = atomic_inc_return(&to_srp_host_attrs(shost)->next_port_id);
+	id = atomic_inc_return_unchecked(&to_srp_host_attrs(shost)->next_port_id);
 	dev_set_name(&rport->dev, "port-%d:%d", shost->host_no, id);
 
 	transport_setup_device(&rport->dev);
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index f52b74c..527a5d7 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -112,7 +112,7 @@ static int sd_resume(struct device *);
 static void sd_rescan(struct device *);
 static int sd_init_command(struct scsi_cmnd *SCpnt);
 static void sd_uninit_command(struct scsi_cmnd *SCpnt);
-static int sd_done(struct scsi_cmnd *);
+static unsigned int sd_done(struct scsi_cmnd *);
 static int sd_eh_action(struct scsi_cmnd *, int);
 static void sd_read_capacity(struct scsi_disk *sdkp, unsigned char *buffer);
 static void scsi_disk_release(struct device *cdev);
@@ -1757,7 +1757,7 @@ static unsigned int sd_completed_bytes(struct scsi_cmnd *scmd)
  *
  *	Note: potentially run from within an ISR. Must not block.
  **/
-static int sd_done(struct scsi_cmnd *SCpnt)
+static unsigned int sd_done(struct scsi_cmnd *SCpnt)
 {
 	int result = SCpnt->result;
 	unsigned int good_bytes = result ? 0 : scsi_bufflen(SCpnt);
@@ -3071,7 +3071,7 @@ static int sd_probe(struct device *dev)
 	sdkp->disk = gd;
 	sdkp->index = index;
 	atomic_set(&sdkp->openers, 0);
-	atomic_set(&sdkp->device->ioerr_cnt, 0);
+	atomic_set_unchecked(&sdkp->device->ioerr_cnt, 0);
 
 	if (!sdp->request_queue->rq_timeout) {
 		if (sdp->type != TYPE_MOD)
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index ae7d9bd..77e1f04 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -1090,7 +1090,7 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg)
 				       sdp->disk->disk_name,
 				       MKDEV(SCSI_GENERIC_MAJOR, sdp->index),
 				       NULL,
-				       (char *)arg);
+				       (char __user *)arg);
 	case BLKTRACESTART:
 		return blk_trace_startstop(sdp->device->request_queue, 1);
 	case BLKTRACESTOP:
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index 64c8674..0c13069 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -80,7 +80,7 @@ static DEFINE_MUTEX(sr_mutex);
 static int sr_probe(struct device *);
 static int sr_remove(struct device *);
 static int sr_init_command(struct scsi_cmnd *SCpnt);
-static int sr_done(struct scsi_cmnd *);
+static unsigned int sr_done(struct scsi_cmnd *);
 static int sr_runtime_suspend(struct device *dev);
 
 static struct dev_pm_ops sr_pm_ops = {
@@ -315,13 +315,13 @@ do_tur:
  * It will be notified on the end of a SCSI read / write, and will take one
  * of several actions based on success or failure.
  */
-static int sr_done(struct scsi_cmnd *SCpnt)
+static unsigned int sr_done(struct scsi_cmnd *SCpnt)
 {
 	int result = SCpnt->result;
-	int this_count = scsi_bufflen(SCpnt);
-	int good_bytes = (result == 0 ? this_count : 0);
-	int block_sectors = 0;
-	long error_sector;
+	unsigned int this_count = scsi_bufflen(SCpnt);
+	unsigned int good_bytes = (result == 0 ? this_count : 0);
+	unsigned int block_sectors = 0;
+	sector_t error_sector;
 	struct scsi_cd *cd = scsi_cd(SCpnt->request->rq_disk);
 
 #ifdef DEBUG
@@ -354,9 +354,12 @@ static int sr_done(struct scsi_cmnd *SCpnt)
 			if (cd->device->sector_size == 2048)
 				error_sector <<= 2;
 			error_sector &= ~(block_sectors - 1);
-			good_bytes = (error_sector -
-				      blk_rq_pos(SCpnt->request)) << 9;
-			if (good_bytes < 0 || good_bytes >= this_count)
+			if (error_sector >= blk_rq_pos(SCpnt->request)) {
+				good_bytes = (error_sector -
+					      blk_rq_pos(SCpnt->request)) << 9;
+				if (good_bytes >= this_count)
+					good_bytes = 0;
+			} else
 				good_bytes = 0;
 			/*
 			 * The SCSI specification allows for the value
diff --git a/drivers/soc/tegra/fuse/fuse-tegra.c b/drivers/soc/tegra/fuse/fuse-tegra.c
index de2c1bf..60b8563 100644
--- a/drivers/soc/tegra/fuse/fuse-tegra.c
+++ b/drivers/soc/tegra/fuse/fuse-tegra.c
@@ -72,7 +72,7 @@ static ssize_t fuse_read(struct file *fd, struct kobject *kobj,
 	return i;
 }
 
-static struct bin_attribute fuse_bin_attr = {
+static bin_attribute_no_const fuse_bin_attr = {
 	.attr = { .name = "fuse", .mode = S_IRUGO, },
 	.read = fuse_read,
 };
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 0239b45..b196163 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -2934,7 +2934,7 @@ int spi_bus_unlock(struct spi_master *master)
 EXPORT_SYMBOL_GPL(spi_bus_unlock);
 
 /* portable code must never pass more than 32 bytes */
-#define	SPI_BUFSIZ	max(32, SMP_CACHE_BYTES)
+#define	SPI_BUFSIZ	max(32UL, SMP_CACHE_BYTES)
 
 static u8	*buf;
 
diff --git a/drivers/staging/android/timed_output.c b/drivers/staging/android/timed_output.c
index aff9cdb..a2f1a81 100644
--- a/drivers/staging/android/timed_output.c
+++ b/drivers/staging/android/timed_output.c
@@ -26,7 +26,7 @@
 #include "timed_output.h"
 
 static struct class *timed_output_class;
-static atomic_t device_count;
+static atomic_unchecked_t device_count;
 
 static ssize_t enable_show(struct device *dev, struct device_attribute *attr,
 			   char *buf)
@@ -66,7 +66,7 @@ static int create_timed_output_class(void)
 		timed_output_class = class_create(THIS_MODULE, "timed_output");
 		if (IS_ERR(timed_output_class))
 			return PTR_ERR(timed_output_class);
-		atomic_set(&device_count, 0);
+		atomic_set_unchecked(&device_count, 0);
 		timed_output_class->dev_groups = timed_output_groups;
 	}
 
@@ -84,7 +84,7 @@ int timed_output_dev_register(struct timed_output_dev *tdev)
 	if (ret < 0)
 		return ret;
 
-	tdev->index = atomic_inc_return(&device_count);
+	tdev->index = atomic_inc_return_unchecked(&device_count);
 	tdev->dev = device_create(timed_output_class, NULL,
 		MKDEV(0, tdev->index), NULL, "%s", tdev->name);
 	if (IS_ERR(tdev->dev))
diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index 7c7b477..8f133af 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -311,8 +311,8 @@ static void comedi_file_reset(struct file *file)
 	}
 	cfp->last_attached = dev->attached;
 	cfp->last_detach_count = dev->detach_count;
-	ACCESS_ONCE(cfp->read_subdev) = read_s;
-	ACCESS_ONCE(cfp->write_subdev) = write_s;
+	ACCESS_ONCE_RW(cfp->read_subdev) = read_s;
+	ACCESS_ONCE_RW(cfp->write_subdev) = write_s;
 }
 
 static void comedi_file_check(struct file *file)
@@ -1989,7 +1989,7 @@ static int do_setrsubd_ioctl(struct comedi_device *dev, unsigned long arg,
 	    !(s_old->async->cmd.flags & CMDF_WRITE))
 		return -EBUSY;
 
-	ACCESS_ONCE(cfp->read_subdev) = s_new;
+	ACCESS_ONCE_RW(cfp->read_subdev) = s_new;
 	return 0;
 }
 
@@ -2031,7 +2031,7 @@ static int do_setwsubd_ioctl(struct comedi_device *dev, unsigned long arg,
 	    (s_old->async->cmd.flags & CMDF_WRITE))
 		return -EBUSY;
 
-	ACCESS_ONCE(cfp->write_subdev) = s_new;
+	ACCESS_ONCE_RW(cfp->write_subdev) = s_new;
 	return 0;
 }
 
diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c
index 0c1a77c..c25bf97 100644
--- a/drivers/staging/fbtft/fbtft-core.c
+++ b/drivers/staging/fbtft/fbtft-core.c
@@ -649,7 +649,7 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display,
 {
 	struct fb_info *info;
 	struct fbtft_par *par;
-	struct fb_ops *fbops = NULL;
+	fb_ops_no_const *fbops = NULL;
 	struct fb_deferred_io *fbdefio = NULL;
 	u8 *vmem = NULL;
 	void *txbuf = NULL;
diff --git a/drivers/staging/fbtft/fbtft.h b/drivers/staging/fbtft/fbtft.h
index d3bc394..7fa336d 100644
--- a/drivers/staging/fbtft/fbtft.h
+++ b/drivers/staging/fbtft/fbtft.h
@@ -93,7 +93,7 @@ struct fbtft_ops {
 
 	int (*set_var)(struct fbtft_par *par);
 	int (*set_gamma)(struct fbtft_par *par, unsigned long *curves);
-};
+} __no_const;
 
 /**
  * struct fbtft_display - Describes the display properties
diff --git a/drivers/staging/gdm724x/gdm_lte.c b/drivers/staging/gdm724x/gdm_lte.c
index bb55219..789b758 100644
--- a/drivers/staging/gdm724x/gdm_lte.c
+++ b/drivers/staging/gdm724x/gdm_lte.c
@@ -410,7 +410,7 @@ static s32 gdm_lte_tx_nic_type(struct net_device *dev, struct sk_buff *skb)
 	return nic_type;
 }
 
-static int gdm_lte_tx(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t gdm_lte_tx(struct sk_buff *skb, struct net_device *dev)
 {
 	struct nic *nic = netdev_priv(dev);
 	u32 nic_type;
diff --git a/drivers/staging/gdm724x/gdm_tty.c b/drivers/staging/gdm724x/gdm_tty.c
index eb7e252..b7bd5e5 100644
--- a/drivers/staging/gdm724x/gdm_tty.c
+++ b/drivers/staging/gdm724x/gdm_tty.c
@@ -44,7 +44,7 @@
 #define gdm_tty_send_control(n, r, v, d, l) (\
 	n->tty_dev->send_control(n->tty_dev->priv_dev, r, v, d, l))
 
-#define GDM_TTY_READY(gdm) (gdm && gdm->tty_dev && gdm->port.count)
+#define GDM_TTY_READY(gdm) (gdm && gdm->tty_dev && atomic_read(&gdm->port.count))
 
 static struct tty_driver *gdm_driver[TTY_MAX_COUNT];
 static struct gdm *gdm_table[TTY_MAX_COUNT][GDM_TTY_MINOR];
diff --git a/drivers/staging/i4l/icn/icn.c b/drivers/staging/i4l/icn/icn.c
index 46d957c..d590c95 100644
--- a/drivers/staging/i4l/icn/icn.c
+++ b/drivers/staging/i4l/icn/icn.c
@@ -1045,7 +1045,7 @@ icn_writecmd(const u_char *buf, int len, int user, icn_card *card)
 		if (count > len)
 			count = len;
 		if (user) {
-			if (copy_from_user(msg, buf, count))
+			if (count > sizeof msg || copy_from_user(msg, buf, count))
 				return -EFAULT;
 		} else
 			memcpy(msg, buf, count);
diff --git a/drivers/staging/iio/accel/lis3l02dq_ring.c b/drivers/staging/iio/accel/lis3l02dq_ring.c
index 50c162e..b5d8b7e 100644
--- a/drivers/staging/iio/accel/lis3l02dq_ring.c
+++ b/drivers/staging/iio/accel/lis3l02dq_ring.c
@@ -118,7 +118,7 @@ static int lis3l02dq_get_buffer_element(struct iio_dev *indio_dev,
 	int scan_count = bitmap_weight(indio_dev->active_scan_mask,
 				       indio_dev->masklength);
 
-	rx_array = kcalloc(4, scan_count, GFP_KERNEL);
+	rx_array = kcalloc(scan_count, 4, GFP_KERNEL);
 	if (!rx_array)
 		return -ENOMEM;
 	ret = lis3l02dq_read_all(indio_dev, rx_array);
diff --git a/drivers/staging/iio/adc/ad7280a.c b/drivers/staging/iio/adc/ad7280a.c
index 62e5eca..fbd4927 100644
--- a/drivers/staging/iio/adc/ad7280a.c
+++ b/drivers/staging/iio/adc/ad7280a.c
@@ -547,8 +547,8 @@ static int ad7280_attr_init(struct ad7280_state *st)
 {
 	int dev, ch, cnt;
 
-	st->iio_attr = kcalloc(2, sizeof(*st->iio_attr) *
-			       (st->slave_num + 1) * AD7280A_CELLS_PER_DEV,
+	st->iio_attr = kcalloc(sizeof(*st->iio_attr) *
+			       (st->slave_num + 1) * AD7280A_CELLS_PER_DEV, 2,
 			       GFP_KERNEL);
 	if (!st->iio_attr)
 		return -ENOMEM;
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h
index a60d72f..ef54d2f 100644
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h
+++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h
@@ -308,10 +308,8 @@ typedef struct ksock_conn {
 	struct ksock_route *ksnc_route;       /* owning route */
 	struct list_head   ksnc_list;         /* stash on peer's conn list */
 	struct socket      *ksnc_sock;        /* actual socket */
-	void               *ksnc_saved_data_ready;  /* socket's original
-						     * data_ready() callback */
-	void               *ksnc_saved_write_space; /* socket's original
-						     * write_space() callback */
+	void		   (*ksnc_saved_data_ready)(struct sock *sk); /* socket's original data_ready() callback */
+	void		   (*ksnc_saved_write_space)(struct sock *sk); /* socket's original write_space() callback */
 	atomic_t           ksnc_conn_refcount;/* conn refcount */
 	atomic_t           ksnc_sock_refcount;/* sock refcount */
 	ksock_sched_t      *ksnc_scheduler;   /* who schedules this connection
diff --git a/drivers/staging/lustre/lnet/libcfs/module.c b/drivers/staging/lustre/lnet/libcfs/module.c
index cdc640b..b5d7a2b 100644
--- a/drivers/staging/lustre/lnet/libcfs/module.c
+++ b/drivers/staging/lustre/lnet/libcfs/module.c
@@ -210,11 +210,11 @@ out:
 }
 
 struct cfs_psdev_ops libcfs_psdev_ops = {
-	libcfs_psdev_open,
-	libcfs_psdev_release,
-	NULL,
-	NULL,
-	libcfs_ioctl
+	.p_open = libcfs_psdev_open,
+	.p_close = libcfs_psdev_release,
+	.p_read = NULL,
+	.p_write = NULL,
+	.p_ioctl = libcfs_ioctl
 };
 
 int lprocfs_call_handler(void *data, int write, loff_t *ppos,
diff --git a/drivers/staging/lustre/lnet/selftest/brw_test.c b/drivers/staging/lustre/lnet/selftest/brw_test.c
index dcb6e50..6d3b10f 100644
--- a/drivers/staging/lustre/lnet/selftest/brw_test.c
+++ b/drivers/staging/lustre/lnet/selftest/brw_test.c
@@ -490,13 +490,11 @@ brw_server_handle(struct srpc_server_rpc *rpc)
 	return 0;
 }
 
-sfw_test_client_ops_t brw_test_client;
-void brw_init_test_client(void)
-{
-	brw_test_client.tso_init = brw_client_init;
-	brw_test_client.tso_fini = brw_client_fini;
-	brw_test_client.tso_prep_rpc = brw_client_prep_rpc;
-	brw_test_client.tso_done_rpc = brw_client_done_rpc;
+sfw_test_client_ops_t brw_test_client = {
+	.tso_init = brw_client_init,
+	.tso_fini = brw_client_fini,
+	.tso_prep_rpc = brw_client_prep_rpc,
+	.tso_done_rpc = brw_client_done_rpc,
 };
 
 srpc_service_t brw_test_service;
diff --git a/drivers/staging/lustre/lnet/selftest/framework.c b/drivers/staging/lustre/lnet/selftest/framework.c
index e2c5323..403c917 100644
--- a/drivers/staging/lustre/lnet/selftest/framework.c
+++ b/drivers/staging/lustre/lnet/selftest/framework.c
@@ -1659,12 +1659,10 @@ sfw_startup(void)
 	INIT_LIST_HEAD(&sfw_data.fw_zombie_rpcs);
 	INIT_LIST_HEAD(&sfw_data.fw_zombie_sessions);
 
-	brw_init_test_client();
 	brw_init_test_service();
 	rc = sfw_register_test(&brw_test_service, &brw_test_client);
 	LASSERT(!rc);
 
-	ping_init_test_client();
 	ping_init_test_service();
 	rc = sfw_register_test(&ping_test_service, &ping_test_client);
 	LASSERT(!rc);
diff --git a/drivers/staging/lustre/lnet/selftest/ping_test.c b/drivers/staging/lustre/lnet/selftest/ping_test.c
index 81a4504..507a945 100644
--- a/drivers/staging/lustre/lnet/selftest/ping_test.c
+++ b/drivers/staging/lustre/lnet/selftest/ping_test.c
@@ -210,14 +210,12 @@ ping_server_handle(struct srpc_server_rpc *rpc)
 	return 0;
 }
 
-sfw_test_client_ops_t ping_test_client;
-void ping_init_test_client(void)
-{
-	ping_test_client.tso_init = ping_client_init;
-	ping_test_client.tso_fini = ping_client_fini;
-	ping_test_client.tso_prep_rpc = ping_client_prep_rpc;
-	ping_test_client.tso_done_rpc = ping_client_done_rpc;
-}
+sfw_test_client_ops_t ping_test_client = {
+	.tso_init = ping_client_init,
+	.tso_fini = ping_client_fini,
+	.tso_prep_rpc = ping_client_prep_rpc,
+	.tso_done_rpc = ping_client_done_rpc,
+};
 
 srpc_service_t ping_test_service;
 void ping_init_test_service(void)
diff --git a/drivers/staging/lustre/lnet/selftest/selftest.h b/drivers/staging/lustre/lnet/selftest/selftest.h
index e689ca1..b7555bb 100644
--- a/drivers/staging/lustre/lnet/selftest/selftest.h
+++ b/drivers/staging/lustre/lnet/selftest/selftest.h
@@ -608,13 +608,11 @@ srpc_wait_service_shutdown(srpc_service_t *sv)
 }
 
 extern sfw_test_client_ops_t brw_test_client;
-void brw_init_test_client(void);
 
 extern srpc_service_t brw_test_service;
 void brw_init_test_service(void);
 
 extern sfw_test_client_ops_t ping_test_client;
-void ping_init_test_client(void);
 
 extern srpc_service_t ping_test_service;
 void ping_init_test_service(void);
diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
index 5aae1d0..75f31ca 100644
--- a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
+++ b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
@@ -759,7 +759,7 @@ static inline ino_t lu_igif_ino(const struct lu_fid *fid)
 	return fid_seq(fid);
 }
 
-void lustre_swab_ost_id(struct ost_id *oid);
+void lustre_swab_ost_id(void *oid);
 
 /**
  * Get inode generation from a igif.
@@ -826,8 +826,8 @@ static inline int fid_is_zero(const struct lu_fid *fid)
 	return fid_seq(fid) == 0 && fid_oid(fid) == 0;
 }
 
-void lustre_swab_lu_fid(struct lu_fid *fid);
-void lustre_swab_lu_seq_range(struct lu_seq_range *range);
+void lustre_swab_lu_fid(void *fid);
+void lustre_swab_lu_seq_range(void *range);
 
 static inline int lu_fid_eq(const struct lu_fid *f0, const struct lu_fid *f1)
 {
@@ -1131,7 +1131,7 @@ struct ptlrpc_body_v2 {
 	__u64 pb_padding[4];
 };
 
-void lustre_swab_ptlrpc_body(struct ptlrpc_body *pb);
+void lustre_swab_ptlrpc_body(void *pb);
 
 /* message body offset for lustre_msg_v2 */
 /* ptlrpc body offset in all request/reply messages */
@@ -1361,7 +1361,7 @@ struct obd_connect_data {
  * reserve the flag for future use.
  */
 
-void lustre_swab_connect(struct obd_connect_data *ocd);
+void lustre_swab_connect(void *ocd);
 
 /*
  * Supported checksum algorithms. Up to 32 checksum types are supported.
@@ -1708,10 +1708,10 @@ struct hsm_state_set {
 	__u64	hss_clearmask;
 };
 
-void lustre_swab_hsm_user_state(struct hsm_user_state *hus);
-void lustre_swab_hsm_state_set(struct hsm_state_set *hss);
+void lustre_swab_hsm_user_state(void *hus);
+void lustre_swab_hsm_state_set(void *hss);
 
-void lustre_swab_obd_statfs(struct obd_statfs *os);
+void lustre_swab_obd_statfs(void *os);
 
 /* ost_body.data values for OST_BRW */
 
@@ -1753,7 +1753,7 @@ struct obd_ioobj {
 #define ioobj_max_brw_set(ioo, num)					\
 do { (ioo)->ioo_max_brw = ((num) - 1) << IOOBJ_MAX_BRW_BITS; } while (0)
 
-void lustre_swab_obd_ioobj(struct obd_ioobj *ioo);
+void lustre_swab_obd_ioobj(void *ioo);
 
 /* multiple of 8 bytes => can array */
 struct niobuf_remote {
@@ -1762,7 +1762,7 @@ struct niobuf_remote {
 	__u32 flags;
 };
 
-void lustre_swab_niobuf_remote(struct niobuf_remote *nbr);
+void lustre_swab_niobuf_remote(void *nbr);
 
 /* lock value block communicated between the filter and llite */
 
@@ -1827,7 +1827,7 @@ struct obd_quotactl {
 	struct obd_dqblk	qc_dqblk;
 };
 
-void lustre_swab_obd_quotactl(struct obd_quotactl *q);
+void lustre_swab_obd_quotactl(void *q);
 
 #define Q_QUOTACHECK	0x800100 /* deprecated as of 2.4 */
 #define Q_INITQUOTA	0x800101 /* deprecated as of 2.4  */
@@ -1939,7 +1939,7 @@ enum mdt_reint_cmd {
 	REINT_MAX
 };
 
-void lustre_swab_generic_32s(__u32 *val);
+void lustre_swab_generic_32s(void *val);
 
 /* the disposition of the intent outlines what was executed */
 #define DISP_IT_EXECD	0x00000001
@@ -2098,7 +2098,7 @@ struct mdt_body {
 	__u64	  padding_10;
 }; /* 216 */
 
-void lustre_swab_mdt_body(struct mdt_body *b);
+void lustre_swab_mdt_body(void *b);
 
 struct mdt_ioepoch {
 	struct lustre_handle handle;
@@ -2107,7 +2107,7 @@ struct mdt_ioepoch {
 	__u32  padding;
 };
 
-void lustre_swab_mdt_ioepoch(struct mdt_ioepoch *b);
+void lustre_swab_mdt_ioepoch(void *b);
 
 /* permissions for md_perm.mp_perm */
 enum {
@@ -2434,7 +2434,7 @@ struct mdt_rec_reint {
 	__u32	   rr_padding_4; /* also fix lustre_swab_mdt_rec_reint */
 };
 
-void lustre_swab_mdt_rec_reint(struct mdt_rec_reint *rr);
+void lustre_swab_mdt_rec_reint(void *rr);
 
 struct lmv_desc {
 	__u32 ld_tgt_count;		/* how many MDS's */
@@ -2624,13 +2624,13 @@ union ldlm_gl_desc {
 	struct ldlm_gl_lquota_desc	lquota_desc;
 };
 
-void lustre_swab_gl_desc(union ldlm_gl_desc *);
+void lustre_swab_gl_desc(void *);
 
 struct ldlm_intent {
 	__u64 opc;
 };
 
-void lustre_swab_ldlm_intent(struct ldlm_intent *i);
+void lustre_swab_ldlm_intent(void *i);
 
 struct ldlm_resource_desc {
 	enum ldlm_type lr_type;
@@ -2655,7 +2655,7 @@ struct ldlm_request {
 	struct lustre_handle lock_handle[LDLM_LOCKREQ_HANDLES];
 };
 
-void lustre_swab_ldlm_request(struct ldlm_request *rq);
+void lustre_swab_ldlm_request(void *rq);
 
 /* If LDLM_ENQUEUE, 1 slot is already occupied, 1 is available.
  * Otherwise, 2 are available.
@@ -2678,7 +2678,7 @@ struct ldlm_reply {
 	__u64  lock_policy_res2;
 };
 
-void lustre_swab_ldlm_reply(struct ldlm_reply *r);
+void lustre_swab_ldlm_reply(void *r);
 
 #define ldlm_flags_to_wire(flags)    ((__u32)(flags))
 #define ldlm_flags_from_wire(flags)  ((__u64)(flags))
@@ -2723,7 +2723,7 @@ struct mgs_target_info {
 	char	     mti_params[MTI_PARAM_MAXLEN];
 };
 
-void lustre_swab_mgs_target_info(struct mgs_target_info *oinfo);
+void lustre_swab_mgs_target_info(void *oinfo);
 
 struct mgs_nidtbl_entry {
 	__u64	   mne_version;    /* table version of this entry */
@@ -2750,14 +2750,14 @@ struct mgs_config_body {
 	__u32    mcb_units;     /* # of units for bulk transfer */
 };
 
-void lustre_swab_mgs_config_body(struct mgs_config_body *body);
+void lustre_swab_mgs_config_body(void *body);
 
 struct mgs_config_res {
 	__u64    mcr_offset;    /* index of last config log */
 	__u64    mcr_size;      /* size of the log */
 };
 
-void lustre_swab_mgs_config_res(struct mgs_config_res *body);
+void lustre_swab_mgs_config_res(void *body);
 
 /* Config marker flags (in config log) */
 #define CM_START       0x01
@@ -3184,9 +3184,9 @@ struct ll_fiemap_info_key {
 	struct  ll_user_fiemap fiemap;
 };
 
-void lustre_swab_ost_body(struct ost_body *b);
-void lustre_swab_ost_last_id(__u64 *id);
-void lustre_swab_fiemap(struct ll_user_fiemap *fiemap);
+void lustre_swab_ost_body(void *b);
+void lustre_swab_ost_last_id(void *id);
+void lustre_swab_fiemap(void *fiemap);
 
 void lustre_swab_lov_user_md_v1(struct lov_user_md_v1 *lum);
 void lustre_swab_lov_user_md_v3(struct lov_user_md_v3 *lum);
@@ -3195,19 +3195,19 @@ void lustre_swab_lov_user_md_objects(struct lov_user_ost_data *lod,
 void lustre_swab_lov_mds_md(struct lov_mds_md *lmm);
 
 /* llog_swab.c */
-void lustre_swab_llogd_body(struct llogd_body *d);
-void lustre_swab_llog_hdr(struct llog_log_hdr *h);
-void lustre_swab_llogd_conn_body(struct llogd_conn_body *d);
+void lustre_swab_llogd_body(void *d);
+void lustre_swab_llog_hdr(void *h);
+void lustre_swab_llogd_conn_body(void *d);
 void lustre_swab_llog_rec(struct llog_rec_hdr *rec);
 
 struct lustre_cfg;
 void lustre_swab_lustre_cfg(struct lustre_cfg *lcfg);
 
 /* Functions for dumping PTLRPC fields */
-void dump_rniobuf(struct niobuf_remote *rnb);
-void dump_ioo(struct obd_ioobj *nb);
-void dump_ost_body(struct ost_body *ob);
-void dump_rcs(__u32 *rc);
+void dump_rniobuf(void *rnb);
+void dump_ioo(void *nb);
+void dump_ost_body(void *ob);
+void dump_rcs(void *rc);
 
 /* security opcodes */
 enum sec_cmd {
@@ -3240,7 +3240,7 @@ struct lustre_capa {
 	__u8	    lc_hmac[CAPA_HMAC_MAX_LEN];   /** HMAC */
 } __packed;
 
-void lustre_swab_lustre_capa(struct lustre_capa *c);
+void lustre_swab_lustre_capa(void *c);
 
 /** lustre_capa::lc_opc */
 enum {
@@ -3324,7 +3324,7 @@ struct layout_intent {
 	__u64 li_end;
 };
 
-void lustre_swab_layout_intent(struct layout_intent *li);
+void lustre_swab_layout_intent(void *li);
 
 /**
  * On the wire version of hsm_progress structure.
@@ -3344,12 +3344,10 @@ struct hsm_progress_kernel {
 	__u64			hpk_padding2;
 } __packed;
 
-void lustre_swab_hsm_user_state(struct hsm_user_state *hus);
-void lustre_swab_hsm_current_action(struct hsm_current_action *action);
-void lustre_swab_hsm_progress_kernel(struct hsm_progress_kernel *hpk);
-void lustre_swab_hsm_user_state(struct hsm_user_state *hus);
-void lustre_swab_hsm_user_item(struct hsm_user_item *hui);
-void lustre_swab_hsm_request(struct hsm_request *hr);
+void lustre_swab_hsm_current_action(void *action);
+void lustre_swab_hsm_progress_kernel(void *hpk);
+void lustre_swab_hsm_user_item(void *hui);
+void lustre_swab_hsm_request(void *hr);
 
 /** layout swap request structure
  * fid1 and fid2 are in mdt_body
@@ -3358,7 +3356,7 @@ struct mdc_swap_layouts {
 	__u64	   msl_flags;
 } __packed;
 
-void lustre_swab_swap_layouts(struct mdc_swap_layouts *msl);
+void lustre_swab_swap_layouts(void *msl);
 
 struct close_data {
 	struct lustre_handle	cd_handle;
@@ -3367,7 +3365,7 @@ struct close_data {
 	__u64			cd_reserved[8];
 };
 
-void lustre_swab_close_data(struct close_data *data);
+void lustre_swab_close_data(void *data);
 
 #endif
 /** @} lustreidl */
diff --git a/drivers/staging/lustre/lustre/include/lustre_dlm.h b/drivers/staging/lustre/lustre/include/lustre_dlm.h
index 8b0364f..66ddfbf 100644
--- a/drivers/staging/lustre/lustre/include/lustre_dlm.h
+++ b/drivers/staging/lustre/lustre/include/lustre_dlm.h
@@ -964,9 +964,9 @@ struct ldlm_ast_work {
 struct ldlm_enqueue_info {
 	__u32 ei_type;   /** Type of the lock being enqueued. */
 	__u32 ei_mode;   /** Mode of the lock being enqueued. */
-	void *ei_cb_bl;  /** blocking lock callback */
-	void *ei_cb_cp;  /** lock completion callback */
-	void *ei_cb_gl;  /** lock glimpse callback */
+	ldlm_blocking_callback ei_cb_bl;  /** blocking lock callback */
+	ldlm_completion_callback ei_cb_cp;  /** lock completion callback */
+	ldlm_glimpse_callback ei_cb_gl;  /** lock glimpse callback */
 	void *ei_cbdata; /** Data to be passed into callbacks. */
 };
 
@@ -1060,7 +1060,7 @@ struct ldlm_callback_suite {
 	ldlm_completion_callback lcs_completion;
 	ldlm_blocking_callback   lcs_blocking;
 	ldlm_glimpse_callback    lcs_glimpse;
-};
+} __no_const;
 
 /* ldlm_lockd.c */
 int ldlm_get_ref(void);
diff --git a/drivers/staging/lustre/lustre/include/lustre_net.h b/drivers/staging/lustre/lustre/include/lustre_net.h
index 69586a52..e4a2921 100644
--- a/drivers/staging/lustre/lustre/include/lustre_net.h
+++ b/drivers/staging/lustre/lustre/include/lustre_net.h
@@ -2571,7 +2571,7 @@ void *lustre_msg_buf_v2(struct lustre_msg_v2 *m, int n, int min_size);
 void *lustre_msg_buf(struct lustre_msg *m, int n, int minlen);
 int lustre_msg_buflen(struct lustre_msg *m, int n);
 int lustre_msg_bufcount(struct lustre_msg *m);
-char *lustre_msg_string(struct lustre_msg *m, int n, int max_len);
+void *lustre_msg_string(struct lustre_msg *m, int n, int max_len);
 __u32 lustre_msghdr_get_flags(struct lustre_msg *msg);
 void lustre_msghdr_set_flags(struct lustre_msg *msg, __u32 flags);
 __u32 lustre_msg_get_flags(struct lustre_msg *msg);
diff --git a/drivers/staging/lustre/lustre/include/obd.h b/drivers/staging/lustre/lustre/include/obd.h
index 4264d97..038b93f 100644
--- a/drivers/staging/lustre/lustre/include/obd.h
+++ b/drivers/staging/lustre/lustre/include/obd.h
@@ -1195,7 +1195,7 @@ struct md_ops {
 	 * lprocfs_alloc_md_stats() in obdclass/lprocfs_status.c. Also, add a
 	 * wrapper function in include/linux/obd_class.h.
 	 */
-};
+} __no_const;
 
 struct lsm_operations {
 	void (*lsm_free)(struct lov_stripe_md *);
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c b/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c
index b88b786..645197d 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c
@@ -148,7 +148,7 @@ static int ldlm_process_flock_lock(struct ldlm_lock *req, __u64 *flags,
 	int added = (mode == LCK_NL);
 	int overlaps = 0;
 	int splitted = 0;
-	const struct ldlm_callback_suite null_cbs = { NULL };
+	const struct ldlm_callback_suite null_cbs = { };
 
 	CDEBUG(D_DLMTRACE,
 	       "flags %#llx owner %llu pid %u mode %u start %llu end %llu\n",
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c
index 74e193e..c23cd85 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c
@@ -1828,8 +1828,9 @@ static int ldlm_chain_lock_for_replay(struct ldlm_lock *lock, void *closure)
 
 static int replay_lock_interpret(const struct lu_env *env,
 				 struct ptlrpc_request *req,
-				 struct ldlm_async_args *aa, int rc)
+				 void *_aa, int rc)
 {
+	struct ldlm_async_args *aa = _aa;
 	struct ldlm_lock     *lock;
 	struct ldlm_reply    *reply;
 	struct obd_export    *exp;
@@ -1956,7 +1957,7 @@ static int replay_one_lock(struct obd_import *imp, struct ldlm_lock *lock)
 	CLASSERT(sizeof(*aa) <= sizeof(req->rq_async_args));
 	aa = ptlrpc_req_async_args(req);
 	aa->lock_handle = body->lock_handle[0];
-	req->rq_interpret_reply = (ptlrpc_interpterer_t)replay_lock_interpret;
+	req->rq_interpret_reply = replay_lock_interpret;
 	ptlrpcd_add_req(req);
 
 	return 0;
diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c
index e4c8288..7e9ed16 100644
--- a/drivers/staging/lustre/lustre/llite/dir.c
+++ b/drivers/staging/lustre/lustre/llite/dir.c
@@ -140,7 +140,7 @@
  */
 
 /* returns the page unlocked, but with a reference */
-static int ll_dir_filler(void *_hash, struct page *page0)
+static int ll_dir_filler(struct file *_hash, struct page *page0)
 {
 	struct inode *inode = page0->mapping->host;
 	int hash64 = ll_i2sbi(inode)->ll_flags & LL_SBI_64BIT_HASH;
diff --git a/drivers/staging/lustre/lustre/lov/lov_io.c b/drivers/staging/lustre/lustre/lov/lov_io.c
index 4296aac..c485767 100644
--- a/drivers/staging/lustre/lustre/lov/lov_io.c
+++ b/drivers/staging/lustre/lustre/lov/lov_io.c
@@ -831,12 +831,32 @@ static void lov_empty_io_fini(const struct lu_env *env,
 }
 
 static void lov_empty_impossible(const struct lu_env *env,
-				 struct cl_io_slice *ios)
+				 const struct cl_io_slice *ios)
 {
 	LBUG();
 }
 
-#define LOV_EMPTY_IMPOSSIBLE ((void *)lov_empty_impossible)
+static int lov_empty_impossible2(const struct lu_env *env,
+				 const struct cl_io_slice *ios)
+{
+	LBUG();
+}
+
+static int lov_empty_impossible3(const struct lu_env *env,
+				 const struct cl_io_slice *slice,
+				 enum cl_req_type crt,
+				 struct cl_2queue *queue)
+{
+	LBUG();
+}
+
+static int lov_empty_impossible4(const struct lu_env *env,
+				 const struct cl_io_slice *slice,
+				 const struct cl_page_slice *page,
+				 unsigned from, unsigned to)
+{
+	LBUG();
+}
 
 /**
  * An io operation vector for files without stripes.
@@ -846,32 +866,32 @@ static const struct cl_io_operations lov_empty_io_ops = {
 		[CIT_READ] = {
 			.cio_fini       = lov_empty_io_fini,
 #if 0
-			.cio_iter_init  = LOV_EMPTY_IMPOSSIBLE,
-			.cio_lock       = LOV_EMPTY_IMPOSSIBLE,
-			.cio_start      = LOV_EMPTY_IMPOSSIBLE,
-			.cio_end	= LOV_EMPTY_IMPOSSIBLE
+			.cio_iter_init  = lov_empty_impossible2,
+			.cio_lock       = lov_empty_impossible2,
+			.cio_start      = lov_empty_impossible2,
+			.cio_end	= lov_empty_impossible
 #endif
 		},
 		[CIT_WRITE] = {
 			.cio_fini      = lov_empty_io_fini,
-			.cio_iter_init = LOV_EMPTY_IMPOSSIBLE,
-			.cio_lock      = LOV_EMPTY_IMPOSSIBLE,
-			.cio_start     = LOV_EMPTY_IMPOSSIBLE,
-			.cio_end       = LOV_EMPTY_IMPOSSIBLE
+			.cio_iter_init = lov_empty_impossible2,
+			.cio_lock      = lov_empty_impossible2,
+			.cio_start     = lov_empty_impossible2,
+			.cio_end       = lov_empty_impossible
 		},
 		[CIT_SETATTR] = {
 			.cio_fini      = lov_empty_io_fini,
-			.cio_iter_init = LOV_EMPTY_IMPOSSIBLE,
-			.cio_lock      = LOV_EMPTY_IMPOSSIBLE,
-			.cio_start     = LOV_EMPTY_IMPOSSIBLE,
-			.cio_end       = LOV_EMPTY_IMPOSSIBLE
+			.cio_iter_init = lov_empty_impossible2,
+			.cio_lock      = lov_empty_impossible2,
+			.cio_start     = lov_empty_impossible2,
+			.cio_end       = lov_empty_impossible
 		},
 		[CIT_FAULT] = {
 			.cio_fini      = lov_empty_io_fini,
-			.cio_iter_init = LOV_EMPTY_IMPOSSIBLE,
-			.cio_lock      = LOV_EMPTY_IMPOSSIBLE,
-			.cio_start     = LOV_EMPTY_IMPOSSIBLE,
-			.cio_end       = LOV_EMPTY_IMPOSSIBLE
+			.cio_iter_init = lov_empty_impossible2,
+			.cio_lock      = lov_empty_impossible2,
+			.cio_start     = lov_empty_impossible2,
+			.cio_end       = lov_empty_impossible
 		},
 		[CIT_FSYNC] = {
 			.cio_fini   = lov_empty_io_fini
@@ -882,13 +902,13 @@ static const struct cl_io_operations lov_empty_io_ops = {
 	},
 	.req_op = {
 		 [CRT_READ] = {
-			 .cio_submit    = LOV_EMPTY_IMPOSSIBLE
+			 .cio_submit    = lov_empty_impossible3
 		 },
 		 [CRT_WRITE] = {
-			 .cio_submit    = LOV_EMPTY_IMPOSSIBLE
+			 .cio_submit    = lov_empty_impossible3
 		 }
 	 },
-	.cio_commit_write = LOV_EMPTY_IMPOSSIBLE
+	.cio_commit_write = lov_empty_impossible4
 };
 
 int lov_io_init_raid0(const struct lu_env *env, struct cl_object *obj,
diff --git a/drivers/staging/lustre/lustre/obdclass/llog_swab.c b/drivers/staging/lustre/lustre/obdclass/llog_swab.c
index 967ba2e..6f341521 100644
--- a/drivers/staging/lustre/lustre/obdclass/llog_swab.c
+++ b/drivers/staging/lustre/lustre/obdclass/llog_swab.c
@@ -58,16 +58,20 @@ static void print_llogd_body(struct llogd_body *d)
 	CDEBUG(D_OTHER, "\tlgd_cur_offset: %#llx\n", d->lgd_cur_offset);
 }
 
-void lustre_swab_lu_fid(struct lu_fid *fid)
+void lustre_swab_lu_fid(void *_fid)
 {
+	struct lu_fid *fid = _fid;
+
 	__swab64s(&fid->f_seq);
 	__swab32s(&fid->f_oid);
 	__swab32s(&fid->f_ver);
 }
 EXPORT_SYMBOL(lustre_swab_lu_fid);
 
-void lustre_swab_ost_id(struct ost_id *oid)
+void lustre_swab_ost_id(void *_oid)
 {
+	struct ost_id *oid = _oid;
+
 	if (fid_seq_is_mdt0(oid->oi.oi_seq)) {
 		__swab64s(&oid->oi.oi_id);
 		__swab64s(&oid->oi.oi_seq);
@@ -84,8 +88,10 @@ static void lustre_swab_llog_id(struct llog_logid *log_id)
 	__swab32s(&log_id->lgl_ogen);
 }
 
-void lustre_swab_llogd_body(struct llogd_body *d)
+void lustre_swab_llogd_body(void *_d)
 {
+	struct llogd_body *d = _d;
+
 	print_llogd_body(d);
 	lustre_swab_llog_id(&d->lgd_logid);
 	__swab32s(&d->lgd_ctxt_idx);
@@ -98,8 +104,10 @@ void lustre_swab_llogd_body(struct llogd_body *d)
 }
 EXPORT_SYMBOL(lustre_swab_llogd_body);
 
-void lustre_swab_llogd_conn_body(struct llogd_conn_body *d)
+void lustre_swab_llogd_conn_body(void *_d)
 {
+	struct llogd_conn_body *d = _d;
+
 	__swab64s(&d->lgdc_gen.mnt_cnt);
 	__swab64s(&d->lgdc_gen.conn_cnt);
 	lustre_swab_llog_id(&d->lgdc_logid);
@@ -114,8 +122,10 @@ static void lustre_swab_ll_fid(struct ll_fid *fid)
 	__swab32s(&fid->f_type);
 }
 
-void lustre_swab_lu_seq_range(struct lu_seq_range *range)
+void lustre_swab_lu_seq_range(void *_range)
 {
+	struct lu_seq_range *range = _range;
+
 	__swab64s(&range->lsr_start);
 	__swab64s(&range->lsr_end);
 	__swab32s(&range->lsr_index);
@@ -294,8 +304,10 @@ static void print_llog_hdr(struct llog_log_hdr *h)
 	CDEBUG(D_OTHER, "\tllh_tail.lrt_len: %#x\n", h->llh_tail.lrt_len);
 }
 
-void lustre_swab_llog_hdr(struct llog_log_hdr *h)
+void lustre_swab_llog_hdr(void *_h)
 {
+	struct llog_log_hdr *h = _h;
+
 	print_llog_hdr(h);
 
 	lustre_swab_llog_rec(&h->llh_hdr);
diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c b/drivers/staging/lustre/lustre/osc/osc_request.c
index 30526eb..7cfe274 100644
--- a/drivers/staging/lustre/lustre/osc/osc_request.c
+++ b/drivers/staging/lustre/lustre/osc/osc_request.c
@@ -211,8 +211,9 @@ static inline void osc_pack_req_body(struct ptlrpc_request *req,
 
 static int osc_getattr_interpret(const struct lu_env *env,
 				 struct ptlrpc_request *req,
-				 struct osc_async_args *aa, int rc)
+				 void *_aa, int rc)
 {
+	struct osc_async_args *aa = _aa;
 	struct ost_body *body;
 
 	if (rc != 0)
@@ -257,7 +258,7 @@ static int osc_getattr_async(struct obd_export *exp, struct obd_info *oinfo,
 	osc_pack_req_body(req, oinfo);
 
 	ptlrpc_request_set_replen(req);
-	req->rq_interpret_reply = (ptlrpc_interpterer_t)osc_getattr_interpret;
+	req->rq_interpret_reply = osc_getattr_interpret;
 
 	CLASSERT(sizeof(*aa) <= sizeof(req->rq_async_args));
 	aa = ptlrpc_req_async_args(req);
@@ -353,8 +354,9 @@ out:
 
 static int osc_setattr_interpret(const struct lu_env *env,
 				 struct ptlrpc_request *req,
-				 struct osc_setattr_args *sa, int rc)
+				 void *_sa, int rc)
 {
+	struct osc_setattr_args *sa = _sa;
 	struct ost_body *body;
 
 	if (rc != 0)
@@ -404,8 +406,7 @@ int osc_setattr_async_base(struct obd_export *exp, struct obd_info *oinfo,
 		/* Do not wait for response. */
 		ptlrpcd_add_req(req);
 	} else {
-		req->rq_interpret_reply =
-			(ptlrpc_interpterer_t)osc_setattr_interpret;
+		req->rq_interpret_reply = osc_setattr_interpret;
 
 		CLASSERT(sizeof(*sa) <= sizeof(req->rq_async_args));
 		sa = ptlrpc_req_async_args(req);
@@ -547,7 +548,7 @@ int osc_punch_base(struct obd_export *exp, struct obd_info *oinfo,
 
 	ptlrpc_request_set_replen(req);
 
-	req->rq_interpret_reply = (ptlrpc_interpterer_t)osc_setattr_interpret;
+	req->rq_interpret_reply = osc_setattr_interpret;
 	CLASSERT(sizeof(*sa) <= sizeof(req->rq_async_args));
 	sa = ptlrpc_req_async_args(req);
 	sa->sa_oa = oinfo->oi_oa;
@@ -2139,8 +2140,9 @@ static int osc_enqueue_fini(struct ptlrpc_request *req, struct ost_lvb *lvb,
 
 static int osc_enqueue_interpret(const struct lu_env *env,
 				 struct ptlrpc_request *req,
-				 struct osc_enqueue_args *aa, int rc)
+				 void *_aa, int rc)
 {
+	struct osc_enqueue_args *aa = _aa;
 	struct ldlm_lock *lock;
 	struct lustre_handle handle;
 	__u32 mode;
@@ -2347,8 +2349,7 @@ int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id,
 			aa->oa_lockh  = lockh;
 			aa->oa_agl    = !!agl;
 
-			req->rq_interpret_reply =
-				(ptlrpc_interpterer_t)osc_enqueue_interpret;
+			req->rq_interpret_reply = osc_enqueue_interpret;
 			if (rqset == PTLRPCD_SET)
 				ptlrpcd_add_req(req);
 			else
@@ -2423,8 +2424,9 @@ int osc_cancel_base(struct lustre_handle *lockh, __u32 mode)
 
 static int osc_statfs_interpret(const struct lu_env *env,
 				struct ptlrpc_request *req,
-				struct osc_async_args *aa, int rc)
+				void *_aa, int rc)
 {
+	struct osc_async_args *aa = _aa;
 	struct obd_statfs *msfs;
 
 	if (rc == -EBADR)
@@ -2492,7 +2494,7 @@ static int osc_statfs_async(struct obd_export *exp,
 		req->rq_no_delay = 1;
 	}
 
-	req->rq_interpret_reply = (ptlrpc_interpterer_t)osc_statfs_interpret;
+	req->rq_interpret_reply = osc_statfs_interpret;
 	CLASSERT (sizeof(*aa) <= sizeof(req->rq_async_args));
 	aa = ptlrpc_req_async_args(req);
 	aa->aa_oi = oinfo;
diff --git a/drivers/staging/lustre/lustre/ptlrpc/layout.c b/drivers/staging/lustre/lustre/ptlrpc/layout.c
index 5b06901..e27766d 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/layout.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/layout.c
@@ -768,8 +768,8 @@ struct req_capsule;
 	.rmf_name    = (name),					\
 	.rmf_flags   = (flags),					\
 	.rmf_size    = (size),					\
-	.rmf_swabber = (void (*)(void *))(swabber),		\
-	.rmf_dumper  = (void (*)(void *))(dumper)		\
+	.rmf_swabber = (swabber),				\
+	.rmf_dumper  = (dumper)					\
 }
 
 struct req_msg_field RMF_GENERIC_DATA =
@@ -1872,8 +1872,7 @@ static void *__req_capsule_get(struct req_capsule *pill,
 	msg = __req_msg(pill, loc);
 	LASSERT(msg);
 
-	getter = (field->rmf_flags & RMF_F_STRING) ?
-		(typeof(getter))lustre_msg_string : lustre_msg_buf;
+	getter = (field->rmf_flags & RMF_F_STRING) ?  lustre_msg_string : lustre_msg_buf;
 
 	if (field->rmf_flags & RMF_F_STRUCT_ARRAY) {
 		/*
diff --git a/drivers/staging/lustre/lustre/ptlrpc/pack_generic.c b/drivers/staging/lustre/lustre/ptlrpc/pack_generic.c
index 492d63f..a8a4f76 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/pack_generic.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/pack_generic.c
@@ -693,7 +693,7 @@ int lustre_msg_bufcount(struct lustre_msg *m)
 }
 EXPORT_SYMBOL(lustre_msg_bufcount);
 
-char *lustre_msg_string(struct lustre_msg *m, int index, int max_len)
+void *lustre_msg_string(struct lustre_msg *m, int index, int max_len)
 {
 	/* max_len == 0 means the string should fill the buffer */
 	char *str;
@@ -1467,8 +1467,10 @@ EXPORT_SYMBOL(do_set_info_async);
 /* byte flipping routines for all wire types declared in
  * lustre_idl.h implemented here.
  */
-void lustre_swab_ptlrpc_body(struct ptlrpc_body *b)
+void lustre_swab_ptlrpc_body(void *_b)
 {
+	struct ptlrpc_body *b = _b;
+
 	__swab32s(&b->pb_type);
 	__swab32s(&b->pb_version);
 	__swab32s(&b->pb_opc);
@@ -1499,8 +1501,10 @@ void lustre_swab_ptlrpc_body(struct ptlrpc_body *b)
 }
 EXPORT_SYMBOL(lustre_swab_ptlrpc_body);
 
-void lustre_swab_connect(struct obd_connect_data *ocd)
+void lustre_swab_connect(void *_ocd)
 {
+	struct obd_connect_data *ocd = _ocd;
+
 	__swab64s(&ocd->ocd_connect_flags);
 	__swab32s(&ocd->ocd_version);
 	__swab32s(&ocd->ocd_grant);
@@ -1575,8 +1579,10 @@ static void lustre_swab_obdo(struct obdo *o)
 
 }
 
-void lustre_swab_obd_statfs(struct obd_statfs *os)
+void lustre_swab_obd_statfs(void *_os)
 {
+	struct obd_statfs *os = _os;
+
 	__swab64s(&os->os_type);
 	__swab64s(&os->os_blocks);
 	__swab64s(&os->os_bfree);
@@ -1600,42 +1606,54 @@ void lustre_swab_obd_statfs(struct obd_statfs *os)
 }
 EXPORT_SYMBOL(lustre_swab_obd_statfs);
 
-void lustre_swab_obd_ioobj(struct obd_ioobj *ioo)
+void lustre_swab_obd_ioobj(void *_ioo)
 {
+	struct obd_ioobj *ioo = _ioo;
+
 	lustre_swab_ost_id(&ioo->ioo_oid);
 	__swab32s(&ioo->ioo_max_brw);
 	__swab32s(&ioo->ioo_bufcnt);
 }
 EXPORT_SYMBOL(lustre_swab_obd_ioobj);
 
-void lustre_swab_niobuf_remote(struct niobuf_remote *nbr)
+void lustre_swab_niobuf_remote(void *_nbr)
 {
+	struct niobuf_remote *nbr = _nbr;
+
 	__swab64s(&nbr->offset);
 	__swab32s(&nbr->len);
 	__swab32s(&nbr->flags);
 }
 EXPORT_SYMBOL(lustre_swab_niobuf_remote);
 
-void lustre_swab_ost_body(struct ost_body *b)
+void lustre_swab_ost_body(void *_b)
 {
+	struct ost_body *b = _b;
+
 	lustre_swab_obdo(&b->oa);
 }
 EXPORT_SYMBOL(lustre_swab_ost_body);
 
-void lustre_swab_ost_last_id(u64 *id)
+void lustre_swab_ost_last_id(void *_id)
 {
+	u64 *id = _id;
+
 	__swab64s(id);
 }
 EXPORT_SYMBOL(lustre_swab_ost_last_id);
 
-void lustre_swab_generic_32s(__u32 *val)
+void lustre_swab_generic_32s(void *_val)
 {
+	__u32 *val = _val;
+
 	__swab32s(val);
 }
 EXPORT_SYMBOL(lustre_swab_generic_32s);
 
-void lustre_swab_gl_desc(union ldlm_gl_desc *desc)
+void lustre_swab_gl_desc(void *_desc)
 {
+	union ldlm_gl_desc *desc = _desc;
+
 	lustre_swab_lu_fid(&desc->lquota_desc.gl_id.qid_fid);
 	__swab64s(&desc->lquota_desc.gl_flags);
 	__swab64s(&desc->lquota_desc.gl_ver);
@@ -1679,8 +1697,10 @@ void lustre_swab_lquota_lvb(struct lquota_lvb *lvb)
 }
 EXPORT_SYMBOL(lustre_swab_lquota_lvb);
 
-void lustre_swab_mdt_body(struct mdt_body *b)
+void lustre_swab_mdt_body(void *_b)
 {
+	struct mdt_body *b = _b;
+
 	lustre_swab_lu_fid(&b->fid1);
 	lustre_swab_lu_fid(&b->fid2);
 	/* handle is opaque */
@@ -1713,8 +1733,10 @@ void lustre_swab_mdt_body(struct mdt_body *b)
 }
 EXPORT_SYMBOL(lustre_swab_mdt_body);
 
-void lustre_swab_mdt_ioepoch(struct mdt_ioepoch *b)
+void lustre_swab_mdt_ioepoch(void *_b)
 {
+	struct mdt_ioepoch *b = _b;
+
 	/* handle is opaque */
 	 __swab64s(&b->ioepoch);
 	 __swab32s(&b->flags);
@@ -1722,8 +1744,9 @@ void lustre_swab_mdt_ioepoch(struct mdt_ioepoch *b)
 }
 EXPORT_SYMBOL(lustre_swab_mdt_ioepoch);
 
-void lustre_swab_mgs_target_info(struct mgs_target_info *mti)
+void lustre_swab_mgs_target_info(void *_mti)
 {
+	struct mgs_target_info *mti = _mti;
 	int i;
 
 	__swab32s(&mti->mti_lustre_ver);
@@ -1761,16 +1784,20 @@ void lustre_swab_mgs_nidtbl_entry(struct mgs_nidtbl_entry *entry)
 }
 EXPORT_SYMBOL(lustre_swab_mgs_nidtbl_entry);
 
-void lustre_swab_mgs_config_body(struct mgs_config_body *body)
+void lustre_swab_mgs_config_body(void *_body)
 {
+	struct mgs_config_body *body = _body;
+
 	__swab64s(&body->mcb_offset);
 	__swab32s(&body->mcb_units);
 	__swab16s(&body->mcb_type);
 }
 EXPORT_SYMBOL(lustre_swab_mgs_config_body);
 
-void lustre_swab_mgs_config_res(struct mgs_config_res *body)
+void lustre_swab_mgs_config_res(void *_body)
 {
+	struct mgs_config_res *body = _body;
+
 	__swab64s(&body->mcr_offset);
 	__swab64s(&body->mcr_size);
 }
@@ -1798,8 +1825,10 @@ static void lustre_swab_obd_dqblk(struct obd_dqblk *b)
 	CLASSERT(offsetof(typeof(*b), dqb_padding) != 0);
 }
 
-void lustre_swab_obd_quotactl(struct obd_quotactl *q)
+void lustre_swab_obd_quotactl(void *_q)
 {
+	struct obd_quotactl *q = _q;
+
 	__swab32s(&q->qc_cmd);
 	__swab32s(&q->qc_type);
 	__swab32s(&q->qc_id);
@@ -1840,8 +1869,9 @@ static void lustre_swab_fiemap_extent(struct ll_fiemap_extent *fm_extent)
 	__swab32s(&fm_extent->fe_device);
 }
 
-void lustre_swab_fiemap(struct ll_user_fiemap *fiemap)
+void lustre_swab_fiemap(void *_fiemap)
 {
+	struct ll_user_fiemap *fiemap = _fiemap;
 	int i;
 
 	__swab64s(&fiemap->fm_start);
@@ -1856,8 +1886,10 @@ void lustre_swab_fiemap(struct ll_user_fiemap *fiemap)
 }
 EXPORT_SYMBOL(lustre_swab_fiemap);
 
-void lustre_swab_mdt_rec_reint (struct mdt_rec_reint *rr)
+void lustre_swab_mdt_rec_reint (void *_rr)
 {
+	struct mdt_rec_reint *rr = _rr;
+
 	__swab32s(&rr->rr_opcode);
 	__swab32s(&rr->rr_cap);
 	__swab32s(&rr->rr_fsuid);
@@ -1989,8 +2021,10 @@ static void lustre_swab_ldlm_policy_data(ldlm_wire_policy_data_t *d)
 	__swab32s(&d->l_flock.lfw_pid);
 }
 
-void lustre_swab_ldlm_intent(struct ldlm_intent *i)
+void lustre_swab_ldlm_intent(void *_i)
 {
+	struct ldlm_intent *i = _i;
+
 	__swab64s(&i->opc);
 }
 EXPORT_SYMBOL(lustre_swab_ldlm_intent);
@@ -2010,8 +2044,10 @@ static void lustre_swab_ldlm_lock_desc(struct ldlm_lock_desc *l)
 	lustre_swab_ldlm_policy_data(&l->l_policy_data);
 }
 
-void lustre_swab_ldlm_request(struct ldlm_request *rq)
+void lustre_swab_ldlm_request(void *_rq)
 {
+	struct ldlm_request *rq = _rq;
+
 	__swab32s(&rq->lock_flags);
 	lustre_swab_ldlm_lock_desc(&rq->lock_desc);
 	__swab32s(&rq->lock_count);
@@ -2019,8 +2055,10 @@ void lustre_swab_ldlm_request(struct ldlm_request *rq)
 }
 EXPORT_SYMBOL(lustre_swab_ldlm_request);
 
-void lustre_swab_ldlm_reply(struct ldlm_reply *r)
+void lustre_swab_ldlm_reply(void *_r)
 {
+	struct ldlm_reply *r = _r;
+
 	__swab32s(&r->lock_flags);
 	CLASSERT(offsetof(typeof(*r), lock_padding) != 0);
 	lustre_swab_ldlm_lock_desc(&r->lock_desc);
@@ -2031,8 +2069,10 @@ void lustre_swab_ldlm_reply(struct ldlm_reply *r)
 EXPORT_SYMBOL(lustre_swab_ldlm_reply);
 
 /* Dump functions */
-void dump_ioo(struct obd_ioobj *ioo)
+void dump_ioo(void *_ioo)
 {
+	struct obd_ioobj *ioo = _ioo;
+
 	CDEBUG(D_RPCTRACE,
 	       "obd_ioobj: ioo_oid=" DOSTID ", ioo_max_brw=%#x, ioo_bufct=%d\n",
 	       POSTID(&ioo->ioo_oid), ioo->ioo_max_brw,
@@ -2040,8 +2080,10 @@ void dump_ioo(struct obd_ioobj *ioo)
 }
 EXPORT_SYMBOL(dump_ioo);
 
-void dump_rniobuf(struct niobuf_remote *nb)
+void dump_rniobuf(void *_nb)
 {
+	struct niobuf_remote *nb = _nb;
+
 	CDEBUG(D_RPCTRACE, "niobuf_remote: offset=%llu, len=%d, flags=%x\n",
 	       nb->offset, nb->len, nb->flags);
 }
@@ -2109,14 +2151,18 @@ static void dump_obdo(struct obdo *oa)
 		CDEBUG(D_RPCTRACE, "obdo: o_lcookie = (llog_cookie dumping not yet implemented)\n");
 }
 
-void dump_ost_body(struct ost_body *ob)
+void dump_ost_body(void *_ob)
 {
+	struct ost_body *ob = _ob;
+
 	dump_obdo(&ob->oa);
 }
 EXPORT_SYMBOL(dump_ost_body);
 
-void dump_rcs(__u32 *rc)
+void dump_rcs(void *_rc)
 {
+	__u32 *rc = _rc;
+
 	CDEBUG(D_RPCTRACE, "rmf_rcs: %d\n", *rc);
 }
 EXPORT_SYMBOL(dump_rcs);
@@ -2193,8 +2239,10 @@ void _debug_req(struct ptlrpc_request *req,
 }
 EXPORT_SYMBOL(_debug_req);
 
-void lustre_swab_lustre_capa(struct lustre_capa *c)
+void lustre_swab_lustre_capa(void *_c)
 {
+	struct lustre_capa *c = _c;
+
 	lustre_swab_lu_fid(&c->lc_fid);
 	__swab64s(&c->lc_opc);
 	__swab64s(&c->lc_uid);
@@ -2206,15 +2254,19 @@ void lustre_swab_lustre_capa(struct lustre_capa *c)
 }
 EXPORT_SYMBOL(lustre_swab_lustre_capa);
 
-void lustre_swab_hsm_user_state(struct hsm_user_state *state)
+void lustre_swab_hsm_user_state(void *_state)
 {
+	struct hsm_user_state *state = _state;
+
 	__swab32s(&state->hus_states);
 	__swab32s(&state->hus_archive_id);
 }
 EXPORT_SYMBOL(lustre_swab_hsm_user_state);
 
-void lustre_swab_hsm_state_set(struct hsm_state_set *hss)
+void lustre_swab_hsm_state_set(void *_hss)
 {
+	struct hsm_state_set *hss = _hss;
+
 	__swab32s(&hss->hss_valid);
 	__swab64s(&hss->hss_setmask);
 	__swab64s(&hss->hss_clearmask);
@@ -2228,23 +2280,29 @@ static void lustre_swab_hsm_extent(struct hsm_extent *extent)
 	__swab64s(&extent->length);
 }
 
-void lustre_swab_hsm_current_action(struct hsm_current_action *action)
+void lustre_swab_hsm_current_action(void *_action)
 {
+	struct hsm_current_action *action = _action;
+
 	__swab32s(&action->hca_state);
 	__swab32s(&action->hca_action);
 	lustre_swab_hsm_extent(&action->hca_location);
 }
 EXPORT_SYMBOL(lustre_swab_hsm_current_action);
 
-void lustre_swab_hsm_user_item(struct hsm_user_item *hui)
+void lustre_swab_hsm_user_item(void *_hui)
 {
+	struct hsm_user_item *hui = _hui;
+
 	lustre_swab_lu_fid(&hui->hui_fid);
 	lustre_swab_hsm_extent(&hui->hui_extent);
 }
 EXPORT_SYMBOL(lustre_swab_hsm_user_item);
 
-void lustre_swab_layout_intent(struct layout_intent *li)
+void lustre_swab_layout_intent(void *_li)
 {
+	struct layout_intent *li = _li;
+
 	__swab32s(&li->li_opc);
 	__swab32s(&li->li_flags);
 	__swab64s(&li->li_start);
@@ -2252,8 +2310,10 @@ void lustre_swab_layout_intent(struct layout_intent *li)
 }
 EXPORT_SYMBOL(lustre_swab_layout_intent);
 
-void lustre_swab_hsm_progress_kernel(struct hsm_progress_kernel *hpk)
+void lustre_swab_hsm_progress_kernel(void *_hpk)
 {
+	struct hsm_progress_kernel *hpk = _hpk;
+
 	lustre_swab_lu_fid(&hpk->hpk_fid);
 	__swab64s(&hpk->hpk_cookie);
 	__swab64s(&hpk->hpk_extent.offset);
@@ -2263,8 +2323,10 @@ void lustre_swab_hsm_progress_kernel(struct hsm_progress_kernel *hpk)
 }
 EXPORT_SYMBOL(lustre_swab_hsm_progress_kernel);
 
-void lustre_swab_hsm_request(struct hsm_request *hr)
+void lustre_swab_hsm_request(void *_hr)
 {
+	struct hsm_request *hr = _hr;
+
 	__swab32s(&hr->hr_action);
 	__swab32s(&hr->hr_archive_id);
 	__swab64s(&hr->hr_flags);
@@ -2273,14 +2335,18 @@ void lustre_swab_hsm_request(struct hsm_request *hr)
 }
 EXPORT_SYMBOL(lustre_swab_hsm_request);
 
-void lustre_swab_swap_layouts(struct mdc_swap_layouts *msl)
+void lustre_swab_swap_layouts(void *_msl)
 {
+	struct mdc_swap_layouts *msl = _msl;
+
 	__swab64s(&msl->msl_flags);
 }
 EXPORT_SYMBOL(lustre_swab_swap_layouts);
 
-void lustre_swab_close_data(struct close_data *cd)
+void lustre_swab_close_data(void *_cd)
 {
+	struct close_data *cd = _cd;
+
 	lustre_swab_lu_fid(&cd->cd_fid);
 	__swab64s(&cd->cd_data_version);
 }
diff --git a/drivers/staging/rdma/hfi1/pcie.c b/drivers/staging/rdma/hfi1/pcie.c
index 0bac21e..2b9ef9c 100644
--- a/drivers/staging/rdma/hfi1/pcie.c
+++ b/drivers/staging/rdma/hfi1/pcie.c
@@ -537,7 +537,7 @@ static void tune_pcie_caps(struct hfi1_devdata *dd)
  * PCI error infrastructure, registered via pci
  */
 static pci_ers_result_t
-pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
+pci_error_detected(struct pci_dev *pdev, enum pci_channel_state state)
 {
 	struct hfi1_devdata *dd = pci_get_drvdata(pdev);
 	pci_ers_result_t ret = PCI_ERS_RESULT_RECOVERED;
diff --git a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
index 591a912..484a285 100644
--- a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
+++ b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
@@ -3990,7 +3990,7 @@ static void init_mlme_ext_priv_value(struct adapter *padapter)
 		_12M_RATE_, _24M_RATE_, 0xff,
 	};
 
-	atomic_set(&pmlmeext->event_seq, 0);
+	atomic_set_unchecked(&pmlmeext->event_seq, 0);
 	pmlmeext->mgnt_seq = 0;/* reset to zero when disconnect at client mode */
 
 	pmlmeext->cur_channel = padapter->registrypriv.channel;
@@ -4183,7 +4183,7 @@ void free_mlme_ext_priv(struct mlme_ext_priv *pmlmeext)
 
 static void _mgt_dispatcher(struct adapter *padapter, struct mlme_handler *ptable, struct recv_frame *precv_frame)
 {
-	u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+	static const u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 	u8 *pframe = precv_frame->rx_data;
 
 	if (ptable->func) {
@@ -4202,7 +4202,7 @@ void mgt_dispatcher(struct adapter *padapter, struct recv_frame *precv_frame)
 #ifdef CONFIG_88EU_AP_MODE
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 #endif /* CONFIG_88EU_AP_MODE */
-	u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+	static const u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 	u8 *pframe = precv_frame->rx_data;
 	struct sta_info *psta = rtw_get_stainfo(&padapter->stapriv, GetAddr2Ptr(pframe));
 
@@ -4227,7 +4227,7 @@ void mgt_dispatcher(struct adapter *padapter, struct recv_frame *precv_frame)
 
 	index = GetFrameSubType(pframe) >> 4;
 
-	if (index > 13) {
+	if (index > ARRAY_SIZE(mlme_sta_tbl)) {
 		RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Currently we do not support reserved sub-fr-type=%d\n", index));
 		return;
 	}
@@ -4317,7 +4317,7 @@ void report_survey_event(struct adapter *padapter,
 	pc2h_evt_hdr = (struct C2HEvent_Header *)(pevtcmd);
 	pc2h_evt_hdr->len = sizeof(struct survey_event);
 	pc2h_evt_hdr->ID = GEN_EVT_CODE(_Survey);
-	pc2h_evt_hdr->seq = atomic_inc_return(&pmlmeext->event_seq);
+	pc2h_evt_hdr->seq = atomic_inc_return_unchecked(&pmlmeext->event_seq);
 
 	psurvey_evt = (struct survey_event *)(pevtcmd + sizeof(struct C2HEvent_Header));
 
@@ -4369,7 +4369,7 @@ void report_surveydone_event(struct adapter *padapter)
 	pc2h_evt_hdr = (struct C2HEvent_Header *)(pevtcmd);
 	pc2h_evt_hdr->len = sizeof(struct surveydone_event);
 	pc2h_evt_hdr->ID = GEN_EVT_CODE(_SurveyDone);
-	pc2h_evt_hdr->seq = atomic_inc_return(&pmlmeext->event_seq);
+	pc2h_evt_hdr->seq = atomic_inc_return_unchecked(&pmlmeext->event_seq);
 
 	psurveydone_evt = (struct surveydone_event *)(pevtcmd + sizeof(struct C2HEvent_Header));
 	psurveydone_evt->bss_cnt = pmlmeext->sitesurvey_res.bss_cnt;
@@ -4415,7 +4415,7 @@ void report_join_res(struct adapter *padapter, int res)
 	pc2h_evt_hdr = (struct C2HEvent_Header *)(pevtcmd);
 	pc2h_evt_hdr->len = sizeof(struct joinbss_event);
 	pc2h_evt_hdr->ID = GEN_EVT_CODE(_JoinBss);
-	pc2h_evt_hdr->seq = atomic_inc_return(&pmlmeext->event_seq);
+	pc2h_evt_hdr->seq = atomic_inc_return_unchecked(&pmlmeext->event_seq);
 
 	pjoinbss_evt = (struct joinbss_event *)(pevtcmd + sizeof(struct C2HEvent_Header));
 	memcpy((unsigned char *)(&(pjoinbss_evt->network.network)), &(pmlmeinfo->network), sizeof(struct wlan_bssid_ex));
@@ -4468,7 +4468,7 @@ void report_del_sta_event(struct adapter *padapter, unsigned char *MacAddr, unsi
 	pc2h_evt_hdr = (struct C2HEvent_Header *)(pevtcmd);
 	pc2h_evt_hdr->len = sizeof(struct stadel_event);
 	pc2h_evt_hdr->ID = GEN_EVT_CODE(_DelSTA);
-	pc2h_evt_hdr->seq = atomic_inc_return(&pmlmeext->event_seq);
+	pc2h_evt_hdr->seq = atomic_inc_return_unchecked(&pmlmeext->event_seq);
 
 	pdel_sta_evt = (struct stadel_event *)(pevtcmd + sizeof(struct C2HEvent_Header));
 	memcpy((unsigned char *)(&(pdel_sta_evt->macaddr)), MacAddr, ETH_ALEN);
@@ -4523,7 +4523,7 @@ void report_add_sta_event(struct adapter *padapter, unsigned char *MacAddr, int
 	pc2h_evt_hdr = (struct C2HEvent_Header *)(pevtcmd);
 	pc2h_evt_hdr->len = sizeof(struct stassoc_event);
 	pc2h_evt_hdr->ID = GEN_EVT_CODE(_AddSTA);
-	pc2h_evt_hdr->seq = atomic_inc_return(&pmlmeext->event_seq);
+	pc2h_evt_hdr->seq = atomic_inc_return_unchecked(&pmlmeext->event_seq);
 
 	padd_sta_evt = (struct stassoc_event *)(pevtcmd + sizeof(struct C2HEvent_Header));
 	memcpy((unsigned char *)(&(padd_sta_evt->macaddr)), MacAddr, ETH_ALEN);
diff --git a/drivers/staging/rtl8188eu/hal/rtl8188eu_recv.c b/drivers/staging/rtl8188eu/hal/rtl8188eu_recv.c
index d6d009a..c21609e 100644
--- a/drivers/staging/rtl8188eu/hal/rtl8188eu_recv.c
+++ b/drivers/staging/rtl8188eu/hal/rtl8188eu_recv.c
@@ -35,7 +35,7 @@ int	rtl8188eu_init_recv_priv(struct adapter *padapter)
 	struct recv_buf *precvbuf;
 
 	tasklet_init(&precvpriv->recv_tasklet,
-		     (void(*)(unsigned long))rtl8188eu_recv_tasklet,
+		     rtl8188eu_recv_tasklet,
 		     (unsigned long)padapter);
 
 	/* init recv_buf */
diff --git a/drivers/staging/rtl8188eu/hal/rtl8188eu_xmit.c b/drivers/staging/rtl8188eu/hal/rtl8188eu_xmit.c
index c96d804..76d5771 100644
--- a/drivers/staging/rtl8188eu/hal/rtl8188eu_xmit.c
+++ b/drivers/staging/rtl8188eu/hal/rtl8188eu_xmit.c
@@ -31,7 +31,7 @@ s32	rtl8188eu_init_xmit_priv(struct adapter *adapt)
 	struct xmit_priv	*pxmitpriv = &adapt->xmitpriv;
 
 	tasklet_init(&pxmitpriv->xmit_tasklet,
-		     (void(*)(unsigned long))rtl8188eu_xmit_tasklet,
+		     rtl8188eu_xmit_tasklet,
 		     (unsigned long)adapt);
 	return _SUCCESS;
 }
diff --git a/drivers/staging/rtl8188eu/include/Hal8188EPhyCfg.h b/drivers/staging/rtl8188eu/include/Hal8188EPhyCfg.h
index 2670d6b..b9a6852 100644
--- a/drivers/staging/rtl8188eu/include/Hal8188EPhyCfg.h
+++ b/drivers/staging/rtl8188eu/include/Hal8188EPhyCfg.h
@@ -205,17 +205,9 @@ void PHY_GetTxPowerLevel8188E(struct adapter *adapter, u32 *powerlevel);
 
 void PHY_ScanOperationBackup8188E(struct adapter *Adapter, u8 Operation);
 
-/*  Call after initialization */
-void ChkFwCmdIoDone(struct adapter *adapter);
-
 /*  BB/MAC/RF other monitor API */
 void PHY_SetRFPathSwitch_8188E(struct adapter *adapter,	bool main);
 
-void PHY_SwitchEphyParameter(struct adapter *adapter);
-
-void PHY_EnableHostClkReq(struct adapter *adapter);
-
-bool SetAntennaConfig92C(struct adapter *adapter, u8 defaultant);
 
 /*--------------------------Exported Function prototype---------------------*/
 
diff --git a/drivers/staging/rtl8188eu/include/hal_intf.h b/drivers/staging/rtl8188eu/include/hal_intf.h
index 1b1c102..4f76875 100644
--- a/drivers/staging/rtl8188eu/include/hal_intf.h
+++ b/drivers/staging/rtl8188eu/include/hal_intf.h
@@ -217,7 +217,7 @@ struct hal_ops {
 
 	void (*hal_notch_filter)(struct adapter *adapter, bool enable);
 	void (*hal_reset_security_engine)(struct adapter *adapter);
-};
+} __no_const;
 
 enum rt_eeprom_type {
 	EEPROM_93C46,
@@ -251,7 +251,6 @@ void rtw_hal_sw_led_deinit(struct adapter *padapter);
 u32 rtw_hal_power_on(struct adapter *padapter);
 uint rtw_hal_init(struct adapter *padapter);
 uint rtw_hal_deinit(struct adapter *padapter);
-void rtw_hal_stop(struct adapter *padapter);
 void rtw_hal_set_hwreg(struct adapter *padapter, u8 variable, u8 *val);
 void rtw_hal_get_hwreg(struct adapter *padapter, u8 variable, u8 *val);
 
@@ -280,8 +279,6 @@ void	rtw_hal_free_recv_priv(struct adapter *padapter);
 
 void rtw_hal_update_ra_mask(struct adapter *padapter, u32 mac_id, u8 level);
 void	rtw_hal_add_ra_tid(struct adapter *adapt, u32 bitmap, u8 arg, u8 level);
-void	rtw_hal_clone_data(struct adapter *dst_adapt,
-			   struct adapter *src_adapt);
 
 void rtw_hal_bcn_related_reg_setting(struct adapter *padapter);
 
diff --git a/drivers/staging/rtl8188eu/include/odm_precomp.h b/drivers/staging/rtl8188eu/include/odm_precomp.h
index 0f236da..d2507aa 100644
--- a/drivers/staging/rtl8188eu/include/odm_precomp.h
+++ b/drivers/staging/rtl8188eu/include/odm_precomp.h
@@ -75,7 +75,7 @@ void odm_RSSIMonitorCheckCE(struct odm_dm_struct *pDM_Odm);
 void odm_TXPowerTrackingThermalMeterInit(struct odm_dm_struct *pDM_Odm);
 void odm_EdcaTurboCheckCE(struct odm_dm_struct *pDM_Odm);
 void odm_TXPowerTrackingCheckCE(struct odm_dm_struct *pDM_Odm);
-void odm_SwAntDivChkAntSwitchCallback(void *FunctionContext);
+void odm_SwAntDivChkAntSwitchCallback(unsigned long FunctionContext);
 void odm_InitHybridAntDiv(struct odm_dm_struct *pDM_Odm);
 void odm_HwAntDiv(struct odm_dm_struct *pDM_Odm);
 
diff --git a/drivers/staging/rtl8188eu/include/recv_osdep.h b/drivers/staging/rtl8188eu/include/recv_osdep.h
index fdeb603..3db91e6 100644
--- a/drivers/staging/rtl8188eu/include/recv_osdep.h
+++ b/drivers/staging/rtl8188eu/include/recv_osdep.h
@@ -35,7 +35,6 @@ void rtw_recv_returnpacket(struct  net_device *cnxt, struct sk_buff *retpkt);
 
 void rtw_handle_tkip_mic_err(struct adapter *padapter, u8 bgroup);
 
-int rtw_init_recv_priv(struct recv_priv *precvpriv, struct adapter *padapter);
 void rtw_free_recv_priv(struct recv_priv *precvpriv);
 
 void rtw_os_recv_resource_alloc(struct recv_frame *recvfr);
diff --git a/drivers/staging/rtl8188eu/include/rtl8188e_recv.h b/drivers/staging/rtl8188eu/include/rtl8188e_recv.h
index 5fed30d..efd81d5 100644
--- a/drivers/staging/rtl8188eu/include/rtl8188e_recv.h
+++ b/drivers/staging/rtl8188eu/include/rtl8188e_recv.h
@@ -59,7 +59,7 @@ enum rx_packet_type {
 s32 rtl8188eu_init_recv_priv(struct adapter *padapter);
 void rtl8188eu_free_recv_priv(struct adapter *padapter);
 void rtl8188eu_recv_hdl(struct adapter *padapter, struct recv_buf *precvbuf);
-void rtl8188eu_recv_tasklet(void *priv);
+void rtl8188eu_recv_tasklet(unsigned long _priv);
 void rtl8188e_query_rx_phy_status(struct recv_frame *fr, struct phy_stat *phy);
 void rtl8188e_process_phy_info(struct adapter *padapter, void *prframe);
 void update_recvframe_phyinfo_88e(struct recv_frame *fra, struct phy_stat *phy);
diff --git a/drivers/staging/rtl8188eu/include/rtl8188e_xmit.h b/drivers/staging/rtl8188eu/include/rtl8188e_xmit.h
index 0b96d42..117d0b5 100644
--- a/drivers/staging/rtl8188eu/include/rtl8188e_xmit.h
+++ b/drivers/staging/rtl8188eu/include/rtl8188e_xmit.h
@@ -163,7 +163,7 @@ s32 rtl8188eu_hal_xmit(struct adapter *padapter, struct xmit_frame *frame);
 s32 rtl8188eu_mgnt_xmit(struct adapter *padapter, struct xmit_frame *frame);
 s32 rtl8188eu_xmit_buf_handler(struct adapter *padapter);
 #define hal_xmit_handler rtl8188eu_xmit_buf_handler
-void rtl8188eu_xmit_tasklet(void *priv);
+void rtl8188eu_xmit_tasklet(unsigned long _priv);
 s32 rtl8188eu_xmitframe_complete(struct adapter *padapter,
 				 struct xmit_priv *pxmitpriv,
 				 struct xmit_buf *pxmitbuf);
diff --git a/drivers/staging/rtl8188eu/include/rtw_cmd.h b/drivers/staging/rtl8188eu/include/rtw_cmd.h
index 9e9f5f4..eff152f 100644
--- a/drivers/staging/rtl8188eu/include/rtw_cmd.h
+++ b/drivers/staging/rtl8188eu/include/rtw_cmd.h
@@ -373,7 +373,6 @@ void rtw_readtssi_cmdrsp_callback(struct adapter *adapt, struct cmd_obj *cmd);
 
 void rtw_setstaKey_cmdrsp_callback(struct adapter *adapt, struct cmd_obj *cmd);
 void rtw_setassocsta_cmdrsp_callback(struct adapter *adapt, struct cmd_obj *cm);
-void rtw_getrttbl_cmdrsp_callback(struct adapter *adapt, struct cmd_obj *cmd);
 
 struct _cmd_callback {
 	u32	cmd_code;
diff --git a/drivers/staging/rtl8188eu/include/rtw_eeprom.h b/drivers/staging/rtl8188eu/include/rtw_eeprom.h
index 904fea1..008aa74 100644
--- a/drivers/staging/rtl8188eu/include/rtw_eeprom.h
+++ b/drivers/staging/rtl8188eu/include/rtw_eeprom.h
@@ -121,10 +121,4 @@ struct eeprom_priv {
 	u8		efuse_eeprom_data[HWSET_MAX_SIZE_512];
 };
 
-void eeprom_write16(struct adapter *padapter, u16 reg, u16 data);
-u16 eeprom_read16(struct adapter *padapter, u16 reg);
-void read_eeprom_content(struct adapter *padapter);
-void eeprom_read_sz(struct adapter *adapt, u16 reg, u8 *data, u32 sz);
-void read_eeprom_content_by_attrib(struct adapter *padapter);
-
 #endif  /* __RTL871X_EEPROM_H__ */
diff --git a/drivers/staging/rtl8188eu/include/rtw_ioctl.h b/drivers/staging/rtl8188eu/include/rtw_ioctl.h
index ee2cb54..03dc80b 100644
--- a/drivers/staging/rtl8188eu/include/rtw_ioctl.h
+++ b/drivers/staging/rtl8188eu/include/rtw_ioctl.h
@@ -108,13 +108,4 @@ static int oid_null_function(struct oid_par_priv *poid_par_priv) {
 
 extern struct iw_handler_def  rtw_handlers_def;
 
-int drv_query_info(struct  net_device *miniportadaptercontext, NDIS_OID oid,
-		   void *informationbuffer, u32 informationbufferlength,
-		   u32 *byteswritten, u32 *bytesneeded);
-
-int drv_set_info(struct  net_device *MiniportAdapterContext,
-		 NDIS_OID oid, void *informationbuffer,
-		 u32 informationbufferlength, u32 *bytesread,
-		 u32 *bytesneeded);
-
 #endif /*  #ifndef __INC_CEINFO_ */
diff --git a/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h b/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h
index 4471133..a1522eb 100644
--- a/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h
+++ b/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h
@@ -409,7 +409,7 @@ struct p2p_oper_class_map {
 struct mlme_ext_priv {
 	struct adapter	*padapter;
 	u8	mlmeext_init;
-	atomic_t	event_seq;
+	atomic_unchecked_t	event_seq;
 	u16	mgnt_seq;
 
 	unsigned char	cur_channel;
@@ -555,8 +555,6 @@ void report_add_sta_event(struct adapter *padapter, unsigned char *addr,
 
 void beacon_timing_control(struct adapter *padapter);
 u8 set_tx_beacon_cmd(struct adapter *padapter);
-unsigned int setup_beacon_frame(struct adapter *padapter,
-				unsigned char *beacon_frame);
 void update_mgnt_tx_rate(struct adapter *padapter, u8 rate);
 void update_mgntframe_attrib(struct adapter *padapter,
 			     struct pkt_attrib *pattrib);
@@ -604,12 +602,6 @@ struct cmd_hdl {
 	u8 (*h2cfuns)(struct adapter  *padapter, u8 *pbuf);
 };
 
-u8 read_macreg_hdl(struct adapter *padapter, u8 *pbuf);
-u8 write_macreg_hdl(struct adapter *padapter, u8 *pbuf);
-u8 read_bbreg_hdl(struct adapter *padapter, u8 *pbuf);
-u8 write_bbreg_hdl(struct adapter *padapter, u8 *pbuf);
-u8 read_rfreg_hdl(struct adapter *padapter, u8 *pbuf);
-u8 write_rfreg_hdl(struct adapter *padapter, u8 *pbuf);
 u8 join_cmd_hdl(struct adapter *padapter, u8 *pbuf);
 u8 disconnect_hdl(struct adapter *padapter, u8 *pbuf);
 u8 createbss_hdl(struct adapter *padapter, u8 *pbuf);
@@ -618,8 +610,6 @@ u8 sitesurvey_cmd_hdl(struct adapter *padapter, u8 *pbuf);
 u8 setauth_hdl(struct adapter *padapter, u8 *pbuf);
 u8 setkey_hdl(struct adapter *padapter, u8 *pbuf);
 u8 set_stakey_hdl(struct adapter *padapter, u8 *pbuf);
-u8 set_assocsta_hdl(struct adapter *padapter, u8 *pbuf);
-u8 del_assocsta_hdl(struct adapter *padapter, u8 *pbuf);
 u8 add_ba_hdl(struct adapter *padapter, unsigned char *pbuf);
 
 u8 mlme_evt_hdl(struct adapter *padapter, unsigned char *pbuf);
diff --git a/drivers/staging/rtl8188eu/include/xmit_osdep.h b/drivers/staging/rtl8188eu/include/xmit_osdep.h
index 13965f2..0ea64d0 100644
--- a/drivers/staging/rtl8188eu/include/xmit_osdep.h
+++ b/drivers/staging/rtl8188eu/include/xmit_osdep.h
@@ -40,7 +40,7 @@ struct sta_xmit_priv;
 struct xmit_frame;
 struct xmit_buf;
 
-int rtw_xmit_entry(struct sk_buff *pkt, struct  net_device *pnetdev);
+netdev_tx_t rtw_xmit_entry(struct sk_buff *pkt, struct  net_device *pnetdev);
 
 void rtw_os_xmit_schedule(struct adapter *padapter);
 
diff --git a/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c b/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c
index 0fea338..e6f2263 100644
--- a/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c
+++ b/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c
@@ -814,7 +814,7 @@ void usb_write_port_cancel(struct adapter *padapter)
 	}
 }
 
-void rtl8188eu_recv_tasklet(void *priv)
+void rtl8188eu_recv_tasklet(unsigned long priv)
 {
 	struct sk_buff *pskb;
 	struct adapter *adapt = priv;
@@ -833,7 +833,7 @@ void rtl8188eu_recv_tasklet(void *priv)
 	}
 }
 
-void rtl8188eu_xmit_tasklet(void *priv)
+void rtl8188eu_xmit_tasklet(unsigned long priv)
 {
 	int ret = false;
 	struct adapter *adapt = priv;
diff --git a/drivers/staging/rtl8188eu/os_dep/xmit_linux.c b/drivers/staging/rtl8188eu/os_dep/xmit_linux.c
index 1593e28..a4345f9 100644
--- a/drivers/staging/rtl8188eu/os_dep/xmit_linux.c
+++ b/drivers/staging/rtl8188eu/os_dep/xmit_linux.c
@@ -213,7 +213,7 @@ static int rtw_mlcst2unicst(struct adapter *padapter, struct sk_buff *skb)
 }
 
 
-int rtw_xmit_entry(struct sk_buff *pkt, struct  net_device *pnetdev)
+netdev_tx_t rtw_xmit_entry(struct sk_buff *pkt, struct  net_device *pnetdev)
 {
 	struct adapter *padapter = (struct adapter *)rtw_netdev_priv(pnetdev);
 	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
index 9b7cc7d..527055c 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
@@ -84,7 +84,7 @@ static struct pci_driver rtl8192_pci_driver = {
 };
 
 static short _rtl92e_is_tx_queue_empty(struct net_device *dev);
-static void _rtl92e_watchdog_wq_cb(void *data);
+static void _rtl92e_watchdog_wq_cb(struct work_struct *data);
 static void _rtl92e_watchdog_timer_cb(unsigned long data);
 static void _rtl92e_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
 				   int rate);
@@ -92,13 +92,13 @@ static int _rtl92e_hard_start_xmit(struct sk_buff *skb, struct net_device *dev);
 static void _rtl92e_tx_cmd(struct net_device *dev, struct sk_buff *skb);
 static short _rtl92e_tx(struct net_device *dev, struct sk_buff *skb);
 static short _rtl92e_pci_initdescring(struct net_device *dev);
-static void _rtl92e_irq_tx_tasklet(struct r8192_priv *priv);
-static void _rtl92e_irq_rx_tasklet(struct r8192_priv *priv);
+static void _rtl92e_irq_tx_tasklet(unsigned long priv);
+static void _rtl92e_irq_rx_tasklet(unsigned long priv);
 static void _rtl92e_cancel_deferred_work(struct r8192_priv *priv);
 static int _rtl92e_up(struct net_device *dev, bool is_silent_reset);
 static int _rtl92e_try_up(struct net_device *dev);
 static int _rtl92e_down(struct net_device *dev, bool shutdownrf);
-static void _rtl92e_restart(void *data);
+static void _rtl92e_restart(struct work_struct *data);
 
 /****************************************************************************
    -----------------------------IO STUFF-------------------------
@@ -375,7 +375,7 @@ static struct rtllib_qos_parameters def_qos_parameters = {
 	{0, 0, 0, 0}
 };
 
-static void _rtl92e_update_beacon(void *data)
+static void _rtl92e_update_beacon(struct work_struct *data)
 {
 	struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
 				  update_beacon_wq.work);
@@ -391,7 +391,7 @@ static void _rtl92e_update_beacon(void *data)
 	_rtl92e_update_cap(dev, net->capability);
 }
 
-static void _rtl92e_qos_activate(void *data)
+static void _rtl92e_qos_activate(struct work_struct *data)
 {
 	struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
 				  qos_activate);
@@ -527,8 +527,9 @@ static int _rtl92e_handle_assoc_response(struct net_device *dev,
 	return 0;
 }
 
-static void _rtl92e_prepare_beacon(struct r8192_priv *priv)
+static void _rtl92e_prepare_beacon(unsigned long _priv)
 {
+	struct r8192_priv *priv = (struct r8192_priv *)_priv;
 	struct net_device *dev = priv->rtllib->dev;
 	struct sk_buff *pskb = NULL, *pnewskb = NULL;
 	struct cb_desc *tcb_desc = NULL;
@@ -1002,30 +1003,30 @@ static void _rtl92e_init_priv_task(struct net_device *dev)
 {
 	struct r8192_priv *priv = rtllib_priv(dev);
 
-	INIT_WORK_RSL(&priv->reset_wq, (void *)_rtl92e_restart, dev);
-	INIT_WORK_RSL(&priv->rtllib->ips_leave_wq, (void *)rtl92e_ips_leave_wq,
+	INIT_WORK_RSL(&priv->reset_wq, _rtl92e_restart, dev);
+	INIT_WORK_RSL(&priv->rtllib->ips_leave_wq, rtl92e_ips_leave_wq,
 		      dev);
 	INIT_DELAYED_WORK_RSL(&priv->watch_dog_wq,
-			      (void *)_rtl92e_watchdog_wq_cb, dev);
+			      _rtl92e_watchdog_wq_cb, dev);
 	INIT_DELAYED_WORK_RSL(&priv->txpower_tracking_wq,
-			      (void *)rtl92e_dm_txpower_tracking_wq, dev);
+			      rtl92e_dm_txpower_tracking_wq, dev);
 	INIT_DELAYED_WORK_RSL(&priv->rfpath_check_wq,
-			      (void *)rtl92e_dm_rf_pathcheck_wq, dev);
+			      rtl92e_dm_rf_pathcheck_wq, dev);
 	INIT_DELAYED_WORK_RSL(&priv->update_beacon_wq,
-			      (void *)_rtl92e_update_beacon, dev);
-	INIT_WORK_RSL(&priv->qos_activate, (void *)_rtl92e_qos_activate, dev);
+			      _rtl92e_update_beacon, dev);
+	INIT_WORK_RSL(&priv->qos_activate, _rtl92e_qos_activate, dev);
 	INIT_DELAYED_WORK_RSL(&priv->rtllib->hw_wakeup_wq,
-			      (void *) rtl92e_hw_wakeup_wq, dev);
+			      rtl92e_hw_wakeup_wq, dev);
 	INIT_DELAYED_WORK_RSL(&priv->rtllib->hw_sleep_wq,
-			      (void *) rtl92e_hw_sleep_wq, dev);
+			      rtl92e_hw_sleep_wq, dev);
 	tasklet_init(&priv->irq_rx_tasklet,
-		     (void(*)(unsigned long))_rtl92e_irq_rx_tasklet,
+		     _rtl92e_irq_rx_tasklet,
 		     (unsigned long)priv);
 	tasklet_init(&priv->irq_tx_tasklet,
-		     (void(*)(unsigned long))_rtl92e_irq_tx_tasklet,
+		     _rtl92e_irq_tx_tasklet,
 		     (unsigned long)priv);
 	tasklet_init(&priv->irq_prepare_beacon_tasklet,
-		     (void(*)(unsigned long))_rtl92e_prepare_beacon,
+		     _rtl92e_prepare_beacon,
 		     (unsigned long)priv);
 }
 
@@ -1377,7 +1378,7 @@ static void _rtl92e_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum,
 	}
 }
 
-static void _rtl92e_watchdog_wq_cb(void *data)
+static void _rtl92e_watchdog_wq_cb(struct work_struct *data)
 {
 	struct r8192_priv *priv = container_of_dwork_rsl(data,
 				  struct r8192_priv, watch_dog_wq);
@@ -2142,13 +2143,15 @@ static void _rtl92e_tx_resume(struct net_device *dev)
 	}
 }
 
-static void _rtl92e_irq_tx_tasklet(struct r8192_priv *priv)
+static void _rtl92e_irq_tx_tasklet(unsigned long _priv)
 {
+	struct r8192_priv *priv = (struct r8192_priv *)_priv;
 	_rtl92e_tx_resume(priv->rtllib->dev);
 }
 
-static void _rtl92e_irq_rx_tasklet(struct r8192_priv *priv)
+static void _rtl92e_irq_rx_tasklet(unsigned long _priv)
 {
+	struct r8192_priv *priv= (struct r8192_priv *)_priv;
 	_rtl92e_rx_normal(priv->rtllib->dev);
 
 	rtl92e_writel(priv->rtllib->dev, INTA_MASK,
@@ -2236,7 +2239,7 @@ void rtl92e_commit(struct net_device *dev)
 	_rtl92e_up(dev, false);
 }
 
-static void _rtl92e_restart(void *data)
+static void _rtl92e_restart(struct work_struct *data)
 {
 	struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
 				  reset_wq);
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_core.h b/drivers/staging/rtl8192e/rtl8192e/rtl_core.h
index f627fdc..3ad70fb 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.h
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.h
@@ -586,12 +586,12 @@ void force_pci_posting(struct net_device *dev);
 void rtl92e_rx_enable(struct net_device *);
 void rtl92e_tx_enable(struct net_device *);
 
-void rtl92e_hw_sleep_wq(void *data);
+void rtl92e_hw_sleep_wq(struct work_struct *data);
 void rtl92e_commit(struct net_device *dev);
 
 void rtl92e_check_rfctrl_gpio_timer(unsigned long data);
 
-void rtl92e_hw_wakeup_wq(void *data);
+void rtl92e_hw_wakeup_wq(struct work_struct *data);
 
 void rtl92e_reset_desc_ring(struct net_device *dev);
 void rtl92e_set_wireless_mode(struct net_device *dev, u8 wireless_mode);
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c
index 9bc2848..17ccbf7 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c
@@ -195,7 +195,7 @@ static void _rtl92e_dm_deinit_fsync(struct net_device *dev);
 static	void _rtl92e_dm_check_txrateandretrycount(struct net_device *dev);
 static  void _rtl92e_dm_check_ac_dc_power(struct net_device *dev);
 static void _rtl92e_dm_check_fsync(struct net_device *dev);
-static void _rtl92e_dm_check_rf_ctrl_gpio(void *data);
+static void _rtl92e_dm_check_rf_ctrl_gpio(struct work_struct *data);
 static void _rtl92e_dm_fsync_timer_callback(unsigned long data);
 
 /*---------------------Define local function prototype-----------------------*/
@@ -229,7 +229,7 @@ void rtl92e_dm_init(struct net_device *dev)
 		_rtl92e_dm_init_wa_broadcom_iot(dev);
 
 	INIT_DELAYED_WORK_RSL(&priv->gpio_change_rf_wq,
-			      (void *)_rtl92e_dm_check_rf_ctrl_gpio, dev);
+			      _rtl92e_dm_check_rf_ctrl_gpio, dev);
 }
 
 void rtl92e_dm_deinit(struct net_device *dev)
@@ -932,7 +932,7 @@ static void _rtl92e_dm_tx_power_tracking_cb_thermal(struct net_device *dev)
 	priv->txpower_count = 0;
 }
 
-void rtl92e_dm_txpower_tracking_wq(void *data)
+void rtl92e_dm_txpower_tracking_wq(struct work_struct *data)
 {
 	struct r8192_priv *priv = container_of_dwork_rsl(data,
 				  struct r8192_priv, txpower_tracking_wq);
@@ -1814,7 +1814,7 @@ static void _rtl92e_dm_init_wa_broadcom_iot(struct net_device *dev)
 	pHTInfo->WAIotTH = WAIotTHVal;
 }
 
-static void _rtl92e_dm_check_rf_ctrl_gpio(void *data)
+static void _rtl92e_dm_check_rf_ctrl_gpio(struct work_struct *data)
 {
 	struct r8192_priv *priv = container_of_dwork_rsl(data,
 				  struct r8192_priv, gpio_change_rf_wq);
@@ -1868,7 +1868,7 @@ static void _rtl92e_dm_check_rf_ctrl_gpio(void *data)
 	}
 }
 
-void rtl92e_dm_rf_pathcheck_wq(void *data)
+void rtl92e_dm_rf_pathcheck_wq(struct work_struct *data)
 {
 	struct r8192_priv *priv = container_of_dwork_rsl(data,
 				  struct r8192_priv,
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_dm.h b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.h
index 756a0dd..d2de5e8 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_dm.h
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.h
@@ -191,13 +191,13 @@ void rtl92e_dm_watchdog(struct net_device *dev);
 
 
 void    rtl92e_init_adaptive_rate(struct net_device *dev);
-void    rtl92e_dm_txpower_tracking_wq(void *data);
+void    rtl92e_dm_txpower_tracking_wq(struct work_struct *data);
 
 void rtl92e_dm_cck_txpower_adjust(struct net_device *dev, bool binch14);
 
 void    rtl92e_dm_restore_state(struct net_device *dev);
 void    rtl92e_dm_backup_state(struct net_device *dev);
 void    rtl92e_dm_init_edca_turbo(struct net_device *dev);
-void    rtl92e_dm_rf_pathcheck_wq(void *data);
+void    rtl92e_dm_rf_pathcheck_wq(struct work_struct *data);
 void rtl92e_dm_init_txpower_tracking(struct net_device *dev);
 #endif	/*__R8192UDM_H__ */
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_ps.c b/drivers/staging/rtl8192e/rtl8192e/rtl_ps.c
index 98e4d88..5216a5f 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_ps.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_ps.c
@@ -44,7 +44,7 @@ static void _rtl92e_hw_sleep(struct net_device *dev)
 	rtl92e_set_rf_state(dev, eRfSleep, RF_CHANGE_BY_PS);
 }
 
-void rtl92e_hw_sleep_wq(void *data)
+void rtl92e_hw_sleep_wq(struct work_struct *data)
 {
 	struct rtllib_device *ieee = container_of_dwork_rsl(data,
 				     struct rtllib_device, hw_sleep_wq);
@@ -72,7 +72,7 @@ void rtl92e_hw_wakeup(struct net_device *dev)
 	rtl92e_set_rf_state(dev, eRfOn, RF_CHANGE_BY_PS);
 }
 
-void rtl92e_hw_wakeup_wq(void *data)
+void rtl92e_hw_wakeup_wq(struct work_struct *data)
 {
 	struct rtllib_device *ieee = container_of_dwork_rsl(data,
 				     struct rtllib_device, hw_wakeup_wq);
@@ -172,7 +172,7 @@ void rtl92e_ips_leave(struct net_device *dev)
 	}
 }
 
-void rtl92e_ips_leave_wq(void *data)
+void rtl92e_ips_leave_wq(struct work_struct *data)
 {
 	struct rtllib_device *ieee = container_of_work_rsl(data,
 				     struct rtllib_device, ips_leave_wq);
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_ps.h b/drivers/staging/rtl8192e/rtl8192e/rtl_ps.h
index a46f4cf..8f46fda 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_ps.h
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_ps.h
@@ -24,6 +24,7 @@
 #include <linux/types.h>
 
 struct net_device;
+struct work_struct;
 
 #define RT_CHECK_FOR_HANG_PERIOD 2
 
@@ -31,7 +32,7 @@ void rtl92e_hw_wakeup(struct net_device *dev);
 void rtl92e_enter_sleep(struct net_device *dev, u64 time);
 void rtl92e_rtllib_ips_leave_wq(struct net_device *dev);
 void rtl92e_rtllib_ips_leave(struct net_device *dev);
-void rtl92e_ips_leave_wq(void *data);
+void rtl92e_ips_leave_wq(struct work_struct *data);
 
 void rtl92e_ips_enter(struct net_device *dev);
 void rtl92e_ips_leave(struct net_device *dev);
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_wx.c b/drivers/staging/rtl8192e/rtl8192e/rtl_wx.c
index 70df6a1..21c9f2e 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_wx.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_wx.c
@@ -1187,30 +1187,30 @@ static const struct iw_priv_args r8192_private_args[] = {
 };
 
 static iw_handler r8192_private_handler[] = {
-	(iw_handler)_rtl92e_wx_set_debug,   /*SIOCIWSECONDPRIV*/
-	(iw_handler)_rtl92e_wx_set_scan_type,
-	(iw_handler)_rtl92e_wx_set_rawtx,
-	(iw_handler)_rtl92e_wx_force_reset,
-	(iw_handler)NULL,
-	(iw_handler)NULL,
-	(iw_handler)_rtl92e_wx_adapter_power_status,
-	(iw_handler)NULL,
-	(iw_handler)NULL,
-	(iw_handler)NULL,
-	(iw_handler)_rtl92e_wx_set_lps_awake_interval,
-	(iw_handler)_rtl92e_wx_set_force_lps,
-	(iw_handler)NULL,
-	(iw_handler)NULL,
-	(iw_handler)NULL,
-	(iw_handler)NULL,
-	(iw_handler)NULL,
-	(iw_handler)NULL,
-	(iw_handler)NULL,
-	(iw_handler)NULL,
-	(iw_handler)NULL,
-	(iw_handler)NULL,
-	(iw_handler)_rtl92e_wx_set_promisc_mode,
-	(iw_handler)_rtl92e_wx_get_promisc_mode,
+	_rtl92e_wx_set_debug,   /*SIOCIWSECONDPRIV*/
+	_rtl92e_wx_set_scan_type,
+	_rtl92e_wx_set_rawtx,
+	_rtl92e_wx_force_reset,
+	NULL,
+	NULL,
+	_rtl92e_wx_adapter_power_status,
+	NULL,
+	NULL,
+	NULL,
+	_rtl92e_wx_set_lps_awake_interval,
+	_rtl92e_wx_set_force_lps,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	_rtl92e_wx_set_promisc_mode,
+	_rtl92e_wx_get_promisc_mode,
 };
 
 static struct iw_statistics *_rtl92e_get_wireless_stats(struct net_device *dev)
diff --git a/drivers/staging/rtl8192e/rtllib.h b/drivers/staging/rtl8192e/rtllib.h
index 776e179..5a021e6 100644
--- a/drivers/staging/rtl8192e/rtllib.h
+++ b/drivers/staging/rtl8192e/rtllib.h
@@ -1993,7 +1993,7 @@ int rtllib_encrypt_fragment(
 	struct sk_buff *frag,
 	int hdr_len);
 
-int rtllib_xmit(struct sk_buff *skb,  struct net_device *dev);
+netdev_tx_t rtllib_xmit(struct sk_buff *skb,  struct net_device *dev);
 void rtllib_txb_free(struct rtllib_txb *);
 
 /* rtllib_rx.c */
@@ -2107,7 +2107,7 @@ int rtllib_wx_set_freq(struct rtllib_device *ieee, struct iw_request_info *a,
 
 int rtllib_wx_get_freq(struct rtllib_device *ieee, struct iw_request_info *a,
 		       union iwreq_data *wrqu, char *b);
-void rtllib_wx_sync_scan_wq(void *data);
+void rtllib_wx_sync_scan_wq(struct work_struct *data);
 
 int rtllib_wx_set_rawtx(struct rtllib_device *ieee,
 			struct iw_request_info *info,
diff --git a/drivers/staging/rtl8192e/rtllib_softmac.c b/drivers/staging/rtl8192e/rtllib_softmac.c
index cfab715..07c64b3 100644
--- a/drivers/staging/rtl8192e/rtllib_softmac.c
+++ b/drivers/staging/rtl8192e/rtllib_softmac.c
@@ -574,7 +574,7 @@ out:
 	wireless_send_event(ieee->dev, SIOCGIWSCAN, &wrqu, NULL);
 }
 
-static void rtllib_softmac_scan_wq(void *data)
+static void rtllib_softmac_scan_wq(struct work_struct *data)
 {
 	struct rtllib_device *ieee = container_of_dwork_rsl(data,
 				     struct rtllib_device, softmac_scan_wq);
@@ -1513,7 +1513,7 @@ static void rtllib_associate_step2(struct rtllib_device *ieee)
 	}
 }
 
-static void rtllib_associate_complete_wq(void *data)
+static void rtllib_associate_complete_wq(struct work_struct *data)
 {
 	struct rtllib_device *ieee = (struct rtllib_device *)
 				     container_of_work_rsl(data,
@@ -1582,7 +1582,7 @@ static void rtllib_associate_complete(struct rtllib_device *ieee)
 	schedule_work(&ieee->associate_complete_wq);
 }
 
-static void rtllib_associate_procedure_wq(void *data)
+static void rtllib_associate_procedure_wq(struct work_struct *data)
 {
 	struct rtllib_device *ieee = container_of_dwork_rsl(data,
 				     struct rtllib_device,
@@ -2054,8 +2054,9 @@ static short rtllib_sta_ps_sleep(struct rtllib_device *ieee, u64 *time)
 
 }
 
-static inline void rtllib_sta_ps(struct rtllib_device *ieee)
+static inline void rtllib_sta_ps(unsigned long _ieee)
 {
+	struct rtllib_device *ieee = (struct rtllib_device *)_ieee;
 	u64 time;
 	short sleep;
 	unsigned long flags, flags2;
@@ -2576,7 +2577,7 @@ static void rtllib_start_monitor_mode(struct rtllib_device *ieee)
 	}
 }
 
-static void rtllib_start_ibss_wq(void *data)
+static void rtllib_start_ibss_wq(struct work_struct *data)
 {
 	struct rtllib_device *ieee = container_of_dwork_rsl(data,
 				     struct rtllib_device, start_ibss_wq);
@@ -2741,7 +2742,7 @@ static void rtllib_start_bss(struct rtllib_device *ieee)
 	spin_unlock_irqrestore(&ieee->lock, flags);
 }
 
-static void rtllib_link_change_wq(void *data)
+static void rtllib_link_change_wq(struct work_struct *data)
 {
 	struct rtllib_device *ieee = container_of_dwork_rsl(data,
 				     struct rtllib_device, link_change_wq);
@@ -2767,7 +2768,7 @@ void rtllib_disassociate(struct rtllib_device *ieee)
 	notify_wx_assoc_event(ieee);
 }
 
-static void rtllib_associate_retry_wq(void *data)
+static void rtllib_associate_retry_wq(struct work_struct *data)
 {
 	struct rtllib_device *ieee = container_of_dwork_rsl(data,
 				     struct rtllib_device, associate_retry_wq);
@@ -3020,19 +3021,18 @@ void rtllib_softmac_init(struct rtllib_device *ieee)
 		    (unsigned long) ieee);
 
 	INIT_DELAYED_WORK_RSL(&ieee->link_change_wq,
-			      (void *)rtllib_link_change_wq, ieee);
+			      rtllib_link_change_wq, ieee);
 	INIT_DELAYED_WORK_RSL(&ieee->start_ibss_wq,
-			      (void *)rtllib_start_ibss_wq, ieee);
+			      rtllib_start_ibss_wq, ieee);
 	INIT_WORK_RSL(&ieee->associate_complete_wq,
-		      (void *)rtllib_associate_complete_wq, ieee);
+			      rtllib_associate_complete_wq, ieee);
 	INIT_DELAYED_WORK_RSL(&ieee->associate_procedure_wq,
-			      (void *)rtllib_associate_procedure_wq, ieee);
+			      rtllib_associate_procedure_wq, ieee);
 	INIT_DELAYED_WORK_RSL(&ieee->softmac_scan_wq,
-			      (void *)rtllib_softmac_scan_wq, ieee);
+			      rtllib_softmac_scan_wq, ieee);
 	INIT_DELAYED_WORK_RSL(&ieee->associate_retry_wq,
-			      (void *)rtllib_associate_retry_wq, ieee);
-	INIT_WORK_RSL(&ieee->wx_sync_scan_wq, (void *)rtllib_wx_sync_scan_wq,
-		      ieee);
+			      rtllib_associate_retry_wq, ieee);
+	INIT_WORK_RSL(&ieee->wx_sync_scan_wq, rtllib_wx_sync_scan_wq, ieee);
 
 	sema_init(&ieee->wx_sem, 1);
 	sema_init(&ieee->scan_sem, 1);
@@ -3042,7 +3042,7 @@ void rtllib_softmac_init(struct rtllib_device *ieee)
 	spin_lock_init(&ieee->beacon_lock);
 
 	tasklet_init(&ieee->ps_task,
-	     (void(*)(unsigned long)) rtllib_sta_ps,
+	     rtllib_sta_ps,
 	     (unsigned long)ieee);
 
 }
diff --git a/drivers/staging/rtl8192e/rtllib_softmac_wx.c b/drivers/staging/rtl8192e/rtllib_softmac_wx.c
index 61ed8b0..a8b7d01 100644
--- a/drivers/staging/rtl8192e/rtllib_softmac_wx.c
+++ b/drivers/staging/rtl8192e/rtllib_softmac_wx.c
@@ -327,7 +327,7 @@ out:
 }
 EXPORT_SYMBOL(rtllib_wx_set_mode);
 
-void rtllib_wx_sync_scan_wq(void *data)
+void rtllib_wx_sync_scan_wq(struct work_struct *data)
 {
 	struct rtllib_device *ieee = container_of_work_rsl(data,
 				     struct rtllib_device, wx_sync_scan_wq);
diff --git a/drivers/staging/rtl8192e/rtllib_tx.c b/drivers/staging/rtl8192e/rtllib_tx.c
index 58fc70e..3fe041e 100644
--- a/drivers/staging/rtl8192e/rtllib_tx.c
+++ b/drivers/staging/rtl8192e/rtllib_tx.c
@@ -981,7 +981,7 @@ static int rtllib_xmit_inter(struct sk_buff *skb, struct net_device *dev)
 	return 1;
 
 }
-int rtllib_xmit(struct sk_buff *skb, struct net_device *dev)
+netdev_tx_t rtllib_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	memset(skb->cb, 0, sizeof(skb->cb));
 	return rtllib_xmit_inter(skb, dev);
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211.h b/drivers/staging/rtl8192u/ieee80211/ieee80211.h
index 68931e5..2d98eb2 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211.h
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211.h
@@ -2174,7 +2174,7 @@ int ieee80211_set_encryption(struct ieee80211_device *ieee);
 int ieee80211_encrypt_fragment(struct ieee80211_device *ieee,
 			       struct sk_buff *frag, int hdr_len);
 
-int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev);
+netdev_tx_t ieee80211_xmit(struct sk_buff *skb, struct net_device *dev);
 void ieee80211_txb_free(struct ieee80211_txb *);
 
 
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
index ae1274c..febf7fa 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
@@ -1765,9 +1765,9 @@ static short ieee80211_sta_ps_sleep(struct ieee80211_device *ieee, u32 *time_h,
 
 }
 
-static inline void ieee80211_sta_ps(struct ieee80211_device *ieee)
+static inline void ieee80211_sta_ps(unsigned long _ieee)
 {
-
+	struct ieee80211_device *ieee = (struct ieee80211_device *)_ieee;
 	u32 th, tl;
 	short sleep;
 
@@ -2735,7 +2735,7 @@ void ieee80211_softmac_init(struct ieee80211_device *ieee)
 	spin_lock_init(&ieee->beacon_lock);
 
 	tasklet_init(&ieee->ps_task,
-	     (void(*)(unsigned long)) ieee80211_sta_ps,
+	     ieee80211_sta_ps,
 	     (unsigned long)ieee);
 
 }
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c
index 1ab0aea..41de55c 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c
@@ -594,7 +594,7 @@ static void ieee80211_query_seqnum(struct ieee80211_device *ieee,
 	}
 }
 
-int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
+netdev_tx_t ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct ieee80211_device *ieee = netdev_priv(dev);
 	struct ieee80211_txb *txb = NULL;
diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c
index 849a95e..debfb75 100644
--- a/drivers/staging/rtl8192u/r8192U_core.c
+++ b/drivers/staging/rtl8192u/r8192U_core.c
@@ -2380,7 +2380,7 @@ static void rtl8192_init_priv_lock(struct r8192_priv *priv)
 
 static void rtl819x_watchdog_wqcallback(struct work_struct *work);
 
-static void rtl8192_irq_rx_tasklet(struct r8192_priv *priv);
+static void rtl8192_irq_rx_tasklet(unsigned long priv);
 /* init tasklet and wait_queue here. only 2.6 above kernel is considered */
 #define DRV_NAME "wlan0"
 static void rtl8192_init_priv_task(struct net_device *dev)
@@ -2403,7 +2403,7 @@ static void rtl8192_init_priv_task(struct net_device *dev)
 	INIT_WORK(&priv->qos_activate, rtl8192_qos_activate);
 
 	tasklet_init(&priv->irq_rx_tasklet,
-		     (void(*)(unsigned long))rtl8192_irq_rx_tasklet,
+		     rtl8192_irq_rx_tasklet,
 		     (unsigned long)priv);
 }
 
@@ -4910,8 +4910,9 @@ static void rtl8192_rx_cmd(struct sk_buff *skb)
 	}
 }
 
-static void rtl8192_irq_rx_tasklet(struct r8192_priv *priv)
+static void rtl8192_irq_rx_tasklet(unsigned long _priv)
 {
+	struct r8192_priv *priv = (struct r8192_priv *)_priv;
 	struct sk_buff *skb;
 	struct rtl8192_rx_info *info;
 
diff --git a/drivers/staging/rtl8712/rtl8712_recv.c b/drivers/staging/rtl8712/rtl8712_recv.c
index d187508..a2e3800 100644
--- a/drivers/staging/rtl8712/rtl8712_recv.c
+++ b/drivers/staging/rtl8712/rtl8712_recv.c
@@ -45,7 +45,7 @@ static u8 bridge_tunnel_header[] = {0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8};
 /* Ethernet-II snap header (RFC1042 for most EtherTypes) */
 static u8 rfc1042_header[] = {0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00};
 
-static void recv_tasklet(void *priv);
+static void recv_tasklet(unsigned long _priv);
 
 int r8712_init_recv_priv(struct recv_priv *precvpriv, struct _adapter *padapter)
 {
@@ -79,7 +79,7 @@ int r8712_init_recv_priv(struct recv_priv *precvpriv, struct _adapter *padapter)
 	}
 	precvpriv->free_recv_buf_queue_cnt = NR_RECVBUFF;
 	tasklet_init(&precvpriv->recv_tasklet,
-	     (void(*)(unsigned long))recv_tasklet,
+	     recv_tasklet,
 	     (unsigned long)padapter);
 	skb_queue_head_init(&precvpriv->rx_skb_queue);
 
@@ -1103,7 +1103,7 @@ _exit_recvbuf2recvframe:
 	return _SUCCESS;
 }
 
-static void recv_tasklet(void *priv)
+static void recv_tasklet(unsigned long priv)
 {
 	struct sk_buff *pskb;
 	struct _adapter *padapter = (struct _adapter *)priv;
diff --git a/drivers/staging/rtl8712/rtl871x_io.h b/drivers/staging/rtl8712/rtl871x_io.h
index 26dd24c..2eb37c9 100644
--- a/drivers/staging/rtl8712/rtl871x_io.h
+++ b/drivers/staging/rtl8712/rtl871x_io.h
@@ -108,7 +108,7 @@ struct	_io_ops {
 			  u8 *pmem);
 	u32 (*_write_port)(struct intf_hdl *pintfhdl, u32 addr, u32 cnt,
 			   u8 *pmem);
-};
+} __no_const;
 
 struct io_req {
 	struct list_head list;
diff --git a/drivers/staging/rtl8712/rtl871x_ioctl.h b/drivers/staging/rtl8712/rtl871x_ioctl.h
index c9218be..ecda3f6 100644
--- a/drivers/staging/rtl8712/rtl871x_ioctl.h
+++ b/drivers/staging/rtl8712/rtl871x_ioctl.h
@@ -76,18 +76,4 @@ uint oid_null_function(struct oid_par_priv *poid_par_priv);
 
 extern struct iw_handler_def  r871x_handlers_def;
 
-uint drv_query_info(struct net_device *MiniportAdapterContext,
-		    uint Oid,
-		    void *InformationBuffer,
-		    u32 InformationBufferLength,
-		    u32 *BytesWritten,
-		    u32 *BytesNeeded);
-
-uint drv_set_info(struct net_device *MiniportAdapterContext,
-		  uint Oid,
-		  void *InformationBuffer,
-		  u32 InformationBufferLength,
-		  u32 *BytesRead,
-		  u32 *BytesNeeded);
-
 #endif
diff --git a/drivers/staging/rtl8712/rtl871x_xmit.c b/drivers/staging/rtl8712/rtl871x_xmit.c
index c6d952f..69cfa68 100644
--- a/drivers/staging/rtl8712/rtl871x_xmit.c
+++ b/drivers/staging/rtl8712/rtl871x_xmit.c
@@ -152,7 +152,7 @@ sint _r8712_init_xmit_priv(struct xmit_priv *pxmitpriv,
 	alloc_hwxmits(padapter);
 	init_hwxmits(pxmitpriv->hwxmits, pxmitpriv->hwxmit_entry);
 	tasklet_init(&pxmitpriv->xmit_tasklet,
-		(void(*)(unsigned long))r8712_xmit_bh,
+		r8712_xmit_bh,
 		(unsigned long)padapter);
 	return _SUCCESS;
 }
diff --git a/drivers/staging/rtl8712/rtl871x_xmit.h b/drivers/staging/rtl8712/rtl871x_xmit.h
index a9633c3..77b0c85 100644
--- a/drivers/staging/rtl8712/rtl871x_xmit.h
+++ b/drivers/staging/rtl8712/rtl871x_xmit.h
@@ -291,7 +291,7 @@ int r8712_pre_xmit(struct _adapter *padapter, struct xmit_frame *pxmitframe);
 int r8712_xmit_enqueue(struct _adapter *padapter,
 		       struct xmit_frame *pxmitframe);
 int r8712_xmit_direct(struct _adapter *padapter, struct xmit_frame *pxmitframe);
-void r8712_xmit_bh(void *priv);
+void r8712_xmit_bh(unsigned long priv);
 
 void xmitframe_xmitbuf_attach(struct xmit_frame *pxmitframe,
 			struct xmit_buf *pxmitbuf);
diff --git a/drivers/staging/rtl8712/usb_ops_linux.c b/drivers/staging/rtl8712/usb_ops_linux.c
index 454cdf6..e0a1337 100644
--- a/drivers/staging/rtl8712/usb_ops_linux.c
+++ b/drivers/staging/rtl8712/usb_ops_linux.c
@@ -331,10 +331,10 @@ void r8712_usb_read_port_cancel(struct _adapter *padapter)
 	}
 }
 
-void r8712_xmit_bh(void *priv)
+void r8712_xmit_bh(unsigned long priv)
 {
 	int ret = false;
-	struct _adapter *padapter = priv;
+	struct _adapter *padapter = (struct _adapter *)priv;
 	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
 
 	if (padapter->bDriverStopped ||
diff --git a/drivers/staging/rtl8712/xmit_linux.c b/drivers/staging/rtl8712/xmit_linux.c
index 695f9b9..5f8019a 100644
--- a/drivers/staging/rtl8712/xmit_linux.c
+++ b/drivers/staging/rtl8712/xmit_linux.c
@@ -156,7 +156,7 @@ void r8712_xmit_complete(struct _adapter *padapter, struct xmit_frame *pxframe)
 	pxframe->pkt = NULL;
 }
 
-int r8712_xmit_entry(_pkt *pkt, struct  net_device *pnetdev)
+netdev_tx_t r8712_xmit_entry(_pkt *pkt, struct  net_device *pnetdev)
 {
 	struct xmit_frame *pxmitframe = NULL;
 	struct _adapter *padapter = netdev_priv(pnetdev);
diff --git a/drivers/staging/rtl8712/xmit_osdep.h b/drivers/staging/rtl8712/xmit_osdep.h
index 8eba7ca..6c4ce81 100644
--- a/drivers/staging/rtl8712/xmit_osdep.h
+++ b/drivers/staging/rtl8712/xmit_osdep.h
@@ -46,7 +46,7 @@ struct sta_xmit_priv;
 struct xmit_frame;
 struct xmit_buf;
 
-int r8712_xmit_entry(_pkt *pkt, struct  net_device *pnetdev);
+netdev_tx_t r8712_xmit_entry(_pkt *pkt, struct  net_device *pnetdev);
 void r8712_SetFilter(struct work_struct *work);
 int r8712_xmit_resource_alloc(struct _adapter *padapter,
 			   struct xmit_buf *pxmitbuf);
diff --git a/drivers/staging/rtl8723au/core/rtw_mlme_ext.c b/drivers/staging/rtl8723au/core/rtw_mlme_ext.c
index f4fff38..c8c4865 100644
--- a/drivers/staging/rtl8723au/core/rtw_mlme_ext.c
+++ b/drivers/staging/rtl8723au/core/rtw_mlme_ext.c
@@ -368,7 +368,7 @@ static void init_mlme_ext_priv23a_value(struct rtw_adapter *padapter)
 		_1M_RATE_, _2M_RATE_, _5M_RATE_, _11M_RATE_, _6M_RATE_,
 		_12M_RATE_, _24M_RATE_, 0xff,};
 
-	atomic_set(&pmlmeext->event_seq, 0);
+	atomic_set_unchecked(&pmlmeext->event_seq, 0);
 	/* reset to zero when disconnect at client mode */
 	pmlmeext->mgnt_seq = 0;
 
@@ -4734,7 +4734,7 @@ void report_survey_event23a(struct rtw_adapter *padapter,
 	pc2h_evt_hdr = (struct C2HEvent_Header *)(pevtcmd);
 	pc2h_evt_hdr->len = sizeof(struct survey_event);
 	pc2h_evt_hdr->ID = GEN_EVT_CODE(_Survey);
-	pc2h_evt_hdr->seq = atomic_inc_return(&pmlmeext->event_seq);
+	pc2h_evt_hdr->seq = atomic_inc_return_unchecked(&pmlmeext->event_seq);
 
 	psurvey_evt = (struct survey_event*)(pevtcmd + sizeof(struct C2HEvent_Header));
 
@@ -4783,7 +4783,7 @@ void report_surveydone_event23a(struct rtw_adapter *padapter)
 	pc2h_evt_hdr = (struct C2HEvent_Header *)(pevtcmd);
 	pc2h_evt_hdr->len = sizeof(struct surveydone_event);
 	pc2h_evt_hdr->ID = GEN_EVT_CODE(_SurveyDone);
-	pc2h_evt_hdr->seq = atomic_inc_return(&pmlmeext->event_seq);
+	pc2h_evt_hdr->seq = atomic_inc_return_unchecked(&pmlmeext->event_seq);
 
 	psurveydone_evt = (struct surveydone_event*)(pevtcmd + sizeof(struct C2HEvent_Header));
 	psurveydone_evt->bss_cnt = pmlmeext->sitesurvey_res.bss_cnt;
@@ -4825,7 +4825,7 @@ void report_join_res23a(struct rtw_adapter *padapter, int res)
 	pc2h_evt_hdr = (struct C2HEvent_Header *)(pevtcmd);
 	pc2h_evt_hdr->len = sizeof(struct joinbss_event);
 	pc2h_evt_hdr->ID = GEN_EVT_CODE(_JoinBss);
-	pc2h_evt_hdr->seq = atomic_inc_return(&pmlmeext->event_seq);
+	pc2h_evt_hdr->seq = atomic_inc_return_unchecked(&pmlmeext->event_seq);
 
 	pjoinbss_evt = (struct joinbss_event*)(pevtcmd + sizeof(struct C2HEvent_Header));
 	memcpy((unsigned char *)&pjoinbss_evt->network.network,
@@ -4873,7 +4873,7 @@ void report_del_sta_event23a(struct rtw_adapter *padapter,
 	pc2h_evt_hdr = (struct C2HEvent_Header *)(pevtcmd);
 	pc2h_evt_hdr->len = sizeof(struct stadel_event);
 	pc2h_evt_hdr->ID = GEN_EVT_CODE(_DelSTA);
-	pc2h_evt_hdr->seq = atomic_inc_return(&pmlmeext->event_seq);
+	pc2h_evt_hdr->seq = atomic_inc_return_unchecked(&pmlmeext->event_seq);
 
 	pdel_sta_evt = (struct stadel_event*)(pevtcmd + sizeof(struct C2HEvent_Header));
 	ether_addr_copy((unsigned char *)&pdel_sta_evt->macaddr, MacAddr);
@@ -4925,7 +4925,7 @@ void report_add_sta_event23a(struct rtw_adapter *padapter,
 	pc2h_evt_hdr = (struct C2HEvent_Header *)(pevtcmd);
 	pc2h_evt_hdr->len = sizeof(struct stassoc_event);
 	pc2h_evt_hdr->ID = GEN_EVT_CODE(_AddSTA);
-	pc2h_evt_hdr->seq = atomic_inc_return(&pmlmeext->event_seq);
+	pc2h_evt_hdr->seq = atomic_inc_return_unchecked(&pmlmeext->event_seq);
 
 	padd_sta_evt = (struct stassoc_event*)(pevtcmd + sizeof(struct C2HEvent_Header));
 	ether_addr_copy((unsigned char *)&padd_sta_evt->macaddr, MacAddr);
diff --git a/drivers/staging/rtl8723au/core/rtw_xmit.c b/drivers/staging/rtl8723au/core/rtw_xmit.c
index 3de40cf..8213068 100644
--- a/drivers/staging/rtl8723au/core/rtw_xmit.c
+++ b/drivers/staging/rtl8723au/core/rtw_xmit.c
@@ -183,7 +183,7 @@ int _rtw_init_xmit_priv23a(struct xmit_priv *pxmitpriv,
 	mutex_init(&pxmitpriv->ack_tx_mutex);
 	rtw_sctx_init23a(&pxmitpriv->ack_tx_ops, 0);
 	tasklet_init(&padapter->xmitpriv.xmit_tasklet,
-		     (void(*)(unsigned long))rtl8723au_xmit_tasklet,
+		     rtl8723au_xmit_tasklet,
 		     (unsigned long)padapter);
 
 exit:
diff --git a/drivers/staging/rtl8723au/hal/rtl8723au_recv.c b/drivers/staging/rtl8723au/hal/rtl8723au_recv.c
index 0fec84b..298d283 100644
--- a/drivers/staging/rtl8723au/hal/rtl8723au_recv.c
+++ b/drivers/staging/rtl8723au/hal/rtl8723au_recv.c
@@ -33,7 +33,7 @@ int rtl8723au_init_recv_priv(struct rtw_adapter *padapter)
 	struct sk_buff *pskb;
 
 	tasklet_init(&precvpriv->recv_tasklet,
-		     (void(*)(unsigned long))rtl8723au_recv_tasklet,
+		     rtl8723au_recv_tasklet,
 		     (unsigned long)padapter);
 
 	precvpriv->int_in_urb = usb_alloc_urb(0, GFP_KERNEL);
diff --git a/drivers/staging/rtl8723au/hal/usb_ops_linux.c b/drivers/staging/rtl8723au/hal/usb_ops_linux.c
index 5c81ff4..b4c2601 100644
--- a/drivers/staging/rtl8723au/hal/usb_ops_linux.c
+++ b/drivers/staging/rtl8723au/hal/usb_ops_linux.c
@@ -483,7 +483,7 @@ _exit_recvbuf2recvframe:
 	return _SUCCESS;
 }
 
-void rtl8723au_recv_tasklet(void *priv)
+void rtl8723au_recv_tasklet(unsigned long priv)
 {
 	struct sk_buff *pskb;
 	struct rtw_adapter *padapter = (struct rtw_adapter *)priv;
@@ -658,7 +658,7 @@ int rtl8723au_read_port(struct rtw_adapter *adapter, u32 cnt,
 	return ret;
 }
 
-void rtl8723au_xmit_tasklet(void *priv)
+void rtl8723au_xmit_tasklet(unsigned long priv)
 {
 	int ret;
 	struct rtw_adapter *padapter = (struct rtw_adapter *)priv;
diff --git a/drivers/staging/rtl8723au/include/Hal8723APhyCfg.h b/drivers/staging/rtl8723au/include/Hal8723APhyCfg.h
index bcf3657..74d4742 100644
--- a/drivers/staging/rtl8723au/include/Hal8723APhyCfg.h
+++ b/drivers/staging/rtl8723au/include/Hal8723APhyCfg.h
@@ -135,7 +135,6 @@ void	PHY_SetBWMode23a8723A(struct rtw_adapter *pAdapter,
 /*  */
 void	PHY_SwChnl8723A(struct rtw_adapter *pAdapter, u8 channel);
 				/*  Call after initialization */
-void ChkFwCmdIoDone(struct rtw_adapter *Adapter);
 
 /*  */
 /*  Modify the value of the hw register when beacon interval be changed. */
@@ -144,13 +143,6 @@ void
 rtl8192c_PHY_SetBeaconHwReg(struct rtw_adapter *Adapter, u16 BeaconInterval);
 
 
-void PHY_SwitchEphyParameter(struct rtw_adapter *Adapter);
-
-void PHY_EnableHostClkReq(struct rtw_adapter *Adapter);
-
-bool
-SetAntennaConfig92C(struct rtw_adapter *Adapter, u8 DefaultAnt);
-
 /*--------------------------Exported Function prototype---------------------*/
 
 #define PHY_SetMacReg	PHY_SetBBReg
diff --git a/drivers/staging/rtl8723au/include/drv_types.h b/drivers/staging/rtl8723au/include/drv_types.h
index e83463a..84230f3 100644
--- a/drivers/staging/rtl8723au/include/drv_types.h
+++ b/drivers/staging/rtl8723au/include/drv_types.h
@@ -185,7 +185,7 @@ struct dvobj_priv {
 
 	struct usb_interface *pusbintf;
 	struct usb_device *pusbdev;
-	atomic_t continual_urb_error;
+	atomic_unchecked_t continual_urb_error;
 
 /*-------- below is for PCIE INTERFACE --------*/
 
diff --git a/drivers/staging/rtl8723au/include/hal_intf.h b/drivers/staging/rtl8723au/include/hal_intf.h
index b924d47..1e3e51c 100644
--- a/drivers/staging/rtl8723au/include/hal_intf.h
+++ b/drivers/staging/rtl8723au/include/hal_intf.h
@@ -97,10 +97,8 @@ int pm_netdev_open23a(struct net_device *pnetdev, u8 bnormal);
 
 int rtl8723au_hal_init(struct rtw_adapter *padapter);
 int rtl8723au_hal_deinit(struct rtw_adapter *padapter);
-void rtw_hal_stop(struct rtw_adapter *padapter);
 
 void rtw_hal_update_ra_mask23a(struct sta_info *psta, u8 rssi_level);
-void	rtw_hal_clone_data(struct rtw_adapter *dst_padapter, struct rtw_adapter *src_padapter);
 
 void hw_var_set_correct_tsf(struct rtw_adapter *padapter);
 void hw_var_set_mlme_disconnect(struct rtw_adapter *padapter);
diff --git a/drivers/staging/rtl8723au/include/recv_osdep.h b/drivers/staging/rtl8723au/include/recv_osdep.h
index c2d3f1b..bb0dc02 100644
--- a/drivers/staging/rtl8723au/include/recv_osdep.h
+++ b/drivers/staging/rtl8723au/include/recv_osdep.h
@@ -26,7 +26,6 @@ int rtw_recv_indicatepkt23a(struct rtw_adapter *adapter, struct recv_frame *prec
 
 void rtw_handle_tkip_mic_err23a(struct rtw_adapter *padapter, u8 bgroup);
 
-int	rtw_init_recv_priv(struct recv_priv *precvpriv, struct rtw_adapter *padapter);
 void rtw_free_recv_priv (struct recv_priv *precvpriv);
 
 int rtw_os_recv_resource_init(struct recv_priv *precvpriv, struct rtw_adapter *padapter);
diff --git a/drivers/staging/rtl8723au/include/rtw_ap.h b/drivers/staging/rtl8723au/include/rtw_ap.h
index 55a708f..2f111af 100644
--- a/drivers/staging/rtl8723au/include/rtw_ap.h
+++ b/drivers/staging/rtl8723au/include/rtw_ap.h
@@ -26,8 +26,6 @@
 void init_mlme_ap_info23a(struct rtw_adapter *padapter);
 void free_mlme_ap_info23a(struct rtw_adapter *padapter);
 /* void update_BCNTIM(struct rtw_adapter *padapter); */
-void rtw_add_bcn_ie(struct rtw_adapter *padapter, struct wlan_bssid_ex *pnetwork, u8 index, u8 *data, u8 len);
-void rtw_remove_bcn_ie(struct rtw_adapter *padapter, struct wlan_bssid_ex *pnetwork, u8 index);
 void update_beacon23a(struct rtw_adapter *padapter, u8 ie_id, u8 *oui, u8 tx);
 void add_RATid23a(struct rtw_adapter *padapter, struct sta_info *psta, u8 rssi_level);
 void expire_timeout_chk23a(struct rtw_adapter *padapter);
diff --git a/drivers/staging/rtl8723au/include/rtw_cmd.h b/drivers/staging/rtl8723au/include/rtw_cmd.h
index d1fa95d..338b933 100644
--- a/drivers/staging/rtl8723au/include/rtw_cmd.h
+++ b/drivers/staging/rtl8723au/include/rtw_cmd.h
@@ -712,7 +712,6 @@ int rtw_ps_cmd23a(struct rtw_adapter*padapter);
 int rtw_chk_hi_queue_cmd23a(struct rtw_adapter*padapter);
 #endif
 
-int rtw_set_chplan_cmd(struct rtw_adapter*padapter, u8 chplan, u8 enqueue);
 int rtw_led_blink_cmd(struct rtw_adapter*padapter, struct led_8723a *pLed);
 int rtw_set_csa_cmd(struct rtw_adapter*padapter, u8 new_ch_no);
 
diff --git a/drivers/staging/rtl8723au/include/rtw_eeprom.h b/drivers/staging/rtl8723au/include/rtw_eeprom.h
index a86f36e..8addfe7 100644
--- a/drivers/staging/rtl8723au/include/rtw_eeprom.h
+++ b/drivers/staging/rtl8723au/include/rtw_eeprom.h
@@ -125,11 +125,4 @@ struct eeprom_priv {
 	u8		efuse_eeprom_data[HWSET_MAX_SIZE_512]; /* 92C:256bytes, 88E:512bytes, we use union set (512bytes) */
 };
 
-void eeprom_write16(struct rtw_adapter *padapter, u16 reg, u16 data);
-u16 eeprom_read16(struct rtw_adapter *padapter, u16 reg);
-void read_eeprom_content(struct rtw_adapter *padapter);
-void eeprom_read_sz(struct rtw_adapter *padapter, u16 reg, u8 *data, u32 sz);
-
-void read_eeprom_content_by_attrib(struct rtw_adapter *padapter);
-
 #endif  /* __RTL871X_EEPROM_H__ */
diff --git a/drivers/staging/rtl8723au/include/rtw_mlme_ext.h b/drivers/staging/rtl8723au/include/rtw_mlme_ext.h
index ea2a6c9..7348e18 100644
--- a/drivers/staging/rtl8723au/include/rtw_mlme_ext.h
+++ b/drivers/staging/rtl8723au/include/rtw_mlme_ext.h
@@ -406,7 +406,7 @@ struct p2p_oper_class_map {
 struct mlme_ext_priv {
 	struct rtw_adapter	*padapter;
 	u8	mlmeext_init;
-	atomic_t		event_seq;
+	atomic_unchecked_t	event_seq;
 	u16	mgnt_seq;
 
 	/* struct fw_priv	fwpriv; */
@@ -543,8 +543,6 @@ void report_add_sta_event23a(struct rtw_adapter *padapter,
 			  unsigned char *MacAddr, int cam_idx);
 
 int set_tx_beacon_cmd23a(struct rtw_adapter*padapter);
-unsigned int setup_beacon_frame(struct rtw_adapter *padapter,
-				unsigned char *beacon_frame);
 void update_mgnt_tx_rate23a(struct rtw_adapter *padapter, u8 rate);
 void update_mgntframe_attrib23a(struct rtw_adapter *padapter,
 			     struct pkt_attrib *pattrib);
@@ -597,14 +595,6 @@ struct cmd_hdl {
 };
 
 
-int read_macreg_hdl(struct rtw_adapter *padapter, u8 *pbuf);
-int write_macreg_hdl(struct rtw_adapter *padapter, u8 *pbuf);
-int read_bbreg_hdl(struct rtw_adapter *padapter, u8 *pbuf);
-int write_bbreg_hdl(struct rtw_adapter *padapter, u8 *pbuf);
-int read_rfreg_hdl(struct rtw_adapter *padapter, u8 *pbuf);
-int write_rfreg_hdl(struct rtw_adapter *padapter, u8 *pbuf);
-
-
 int NULL_hdl23a(struct rtw_adapter *padapter, const u8 *pbuf);
 int join_cmd_hdl23a(struct rtw_adapter *padapter, const u8 *pbuf);
 int disconnect_hdl23a(struct rtw_adapter *padapter, const u8 *pbuf);
@@ -614,8 +604,6 @@ int sitesurvey_cmd_hdl23a(struct rtw_adapter *padapter, const u8 *pbuf);
 int setauth_hdl23a(struct rtw_adapter *padapter, const u8 *pbuf);
 int setkey_hdl23a(struct rtw_adapter *padapter, const u8 *pbuf);
 int set_stakey_hdl23a(struct rtw_adapter *padapter, const u8 *pbuf);
-int set_assocsta_hdl(struct rtw_adapter *padapter, const u8 *pbuf);
-int del_assocsta_hdl(struct rtw_adapter *padapter, const u8 *pbuf);
 int add_ba_hdl23a(struct rtw_adapter *padapter, const u8 *pbuf);
 
 int mlme_evt_hdl23a(struct rtw_adapter *padapter, const u8 *pbuf);
diff --git a/drivers/staging/rtl8723au/include/usb_ops.h b/drivers/staging/rtl8723au/include/usb_ops.h
index ff11e13..22a13ac 100644
--- a/drivers/staging/rtl8723au/include/usb_ops.h
+++ b/drivers/staging/rtl8723au/include/usb_ops.h
@@ -36,9 +36,9 @@ enum {
 
 void rtl8723au_set_hw_type(struct rtw_adapter *padapter);
 
-void rtl8723au_recv_tasklet(void *priv);
+void rtl8723au_recv_tasklet(unsigned long priv);
 
-void rtl8723au_xmit_tasklet(void *priv);
+void rtl8723au_xmit_tasklet(unsigned long priv);
 
 /* Increase and check if the continual_urb_error of this @param dvobjprive is
  * larger than MAX_CONTINUAL_URB_ERR. Return result
@@ -48,7 +48,7 @@ static inline int rtw_inc_and_chk_continual_urb_error(struct dvobj_priv *dvobj)
 	int ret = false;
 	int value;
 
-	value = atomic_inc_return(&dvobj->continual_urb_error);
+	value = atomic_inc_return_unchecked(&dvobj->continual_urb_error);
 	if (value > MAX_CONTINUAL_URB_ERR) {
 		DBG_8723A("[dvobj:%p][ERROR] continual_urb_error:%d > %d\n",
 			  dvobj, value, MAX_CONTINUAL_URB_ERR);
@@ -60,7 +60,7 @@ static inline int rtw_inc_and_chk_continual_urb_error(struct dvobj_priv *dvobj)
 /* Set the continual_urb_error of this @param dvobjprive to 0 */
 static inline void rtw_reset_continual_urb_error(struct dvobj_priv *dvobj)
 {
-	atomic_set(&dvobj->continual_urb_error, 0);
+	atomic_set_unchecked(&dvobj->continual_urb_error, 0);
 }
 
 bool rtl8723au_chip_configure(struct rtw_adapter *padapter);
diff --git a/drivers/staging/rtl8723au/include/xmit_osdep.h b/drivers/staging/rtl8723au/include/xmit_osdep.h
index 2be04c48..a494e09 100644
--- a/drivers/staging/rtl8723au/include/xmit_osdep.h
+++ b/drivers/staging/rtl8723au/include/xmit_osdep.h
@@ -21,7 +21,7 @@
 
 #define NR_XMITFRAME	256
 
-int rtw_xmit23a_entry23a(struct sk_buff *pkt, struct net_device *pnetdev);
+netdev_tx_t rtw_xmit23a_entry23a(struct sk_buff *pkt, struct net_device *pnetdev);
 
 void rtw_os_xmit_schedule23a(struct rtw_adapter *padapter);
 
diff --git a/drivers/staging/rtl8723au/os_dep/ioctl_cfg80211.c b/drivers/staging/rtl8723au/os_dep/ioctl_cfg80211.c
index 12d1844..46d0889 100644
--- a/drivers/staging/rtl8723au/os_dep/ioctl_cfg80211.c
+++ b/drivers/staging/rtl8723au/os_dep/ioctl_cfg80211.c
@@ -2430,7 +2430,7 @@ static int rtw_cfg80211_monitor_if_close(struct net_device *ndev)
 	return 0;
 }
 
-static int rtw_cfg80211_monitor_if_xmit_entry(struct sk_buff *skb,
+static netdev_tx_t rtw_cfg80211_monitor_if_xmit_entry(struct sk_buff *skb,
 					      struct net_device *ndev)
 {
 	int ret = 0;
diff --git a/drivers/staging/rtl8723au/os_dep/xmit_linux.c b/drivers/staging/rtl8723au/os_dep/xmit_linux.c
index 64be72a..d0d2f81 100644
--- a/drivers/staging/rtl8723au/os_dep/xmit_linux.c
+++ b/drivers/staging/rtl8723au/os_dep/xmit_linux.c
@@ -117,7 +117,7 @@ static void rtw_check_xmit_resource(struct rtw_adapter *padapter,
 	}
 }
 
-int rtw_xmit23a_entry23a(struct sk_buff *skb, struct net_device *pnetdev)
+netdev_tx_t rtw_xmit23a_entry23a(struct sk_buff *skb, struct net_device *pnetdev)
 {
 	struct rtw_adapter *padapter = netdev_priv(pnetdev);
 	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
diff --git a/drivers/staging/sm750fb/sm750.c b/drivers/staging/sm750fb/sm750.c
index 6ed004e..f8ebf08 100644
--- a/drivers/staging/sm750fb/sm750.c
+++ b/drivers/staging/sm750fb/sm750.c
@@ -725,6 +725,7 @@ static struct fb_ops lynxfb_ops = {
 	.fb_set_par = lynxfb_ops_set_par,
 	.fb_setcolreg = lynxfb_ops_setcolreg,
 	.fb_blank = lynxfb_ops_blank,
+	.fb_pan_display = lynxfb_ops_pan_display,
 	.fb_fillrect = cfb_fillrect,
 	.fb_imageblit = cfb_imageblit,
 	.fb_copyarea = cfb_copyarea,
@@ -770,7 +771,6 @@ static int lynxfb_set_fbinfo(struct fb_info *info, int index)
 	par->index = index;
 	output->channel = &crtc->channel;
 	sm750fb_set_drv(par);
-	lynxfb_ops.fb_pan_display = lynxfb_ops_pan_display;
 
 	/*
 	 * set current cursor variable and proc pointer,
@@ -787,16 +787,20 @@ static int lynxfb_set_fbinfo(struct fb_info *info, int index)
 
 	memset_io(crtc->cursor.vstart, 0, crtc->cursor.size);
 	if (!g_hwcursor) {
-		lynxfb_ops.fb_cursor = NULL;
+		pax_open_kernel();
+		const_cast(lynxfb_ops.fb_cursor) = NULL;
+		pax_close_kernel();
 		hw_cursor_disable(&crtc->cursor);
 	}
 
 	/* set info->fbops, must be set before fb_find_mode */
 	if (!sm750_dev->accel_off) {
 		/* use 2d acceleration */
-		lynxfb_ops.fb_fillrect = lynxfb_ops_fillrect;
-		lynxfb_ops.fb_copyarea = lynxfb_ops_copyarea;
-		lynxfb_ops.fb_imageblit = lynxfb_ops_imageblit;
+		pax_open_kernel();
+		const_cast(lynxfb_ops.fb_fillrect) = lynxfb_ops_fillrect;
+		const_cast(lynxfb_ops.fb_copyarea) = lynxfb_ops_copyarea;
+		const_cast(lynxfb_ops.fb_imageblit) = lynxfb_ops_imageblit;
+		pax_close_kernel();
 	}
 	info->fbops = &lynxfb_ops;
 
diff --git a/drivers/staging/unisys/visorbus/visorbus_private.h b/drivers/staging/unisys/visorbus/visorbus_private.h
index 39edd20..d860d0c 100644
--- a/drivers/staging/unisys/visorbus/visorbus_private.h
+++ b/drivers/staging/unisys/visorbus/visorbus_private.h
@@ -34,7 +34,7 @@ struct visorchipset_busdev_notifiers {
 	void (*device_destroy)(struct visor_device *bus_info);
 	void (*device_pause)(struct visor_device *bus_info);
 	void (*device_resume)(struct visor_device *bus_info);
-};
+} __no_const;
 
 /*  These functions live inside visorchipset, and will be called to indicate
  *  responses to specific events (by code outside of visorchipset).
@@ -49,7 +49,7 @@ struct visorchipset_busdev_responders {
 	void (*device_destroy)(struct visor_device *p, int response);
 	void (*device_pause)(struct visor_device *p, int response);
 	void (*device_resume)(struct visor_device *p, int response);
-};
+} __no_const;
 
 /** Register functions (in the bus driver) to get called by visorchipset
  *  whenever a bus or device appears for which this guest is to be the
diff --git a/drivers/staging/unisys/visornic/visornic_main.c b/drivers/staging/unisys/visornic/visornic_main.c
index be0d057..9f34086 100644
--- a/drivers/staging/unisys/visornic/visornic_main.c
+++ b/drivers/staging/unisys/visornic/visornic_main.c
@@ -807,7 +807,7 @@ static inline bool vnic_hit_low_watermark(struct visornic_devdata *devdata,
  *	can be called again.
  *	Returns NETDEV_TX_OK.
  */
-static int
+static netdev_tx_t
 visornic_xmit(struct sk_buff *skb, struct net_device *netdev)
 {
 	struct visornic_devdata *devdata;
diff --git a/drivers/staging/vt6655/rxtx.c b/drivers/staging/vt6655/rxtx.c
index 1a2dda0..f1cb7d1 100644
--- a/drivers/staging/vt6655/rxtx.c
+++ b/drivers/staging/vt6655/rxtx.c
@@ -1243,7 +1243,7 @@ static void vnt_fill_txkey(struct ieee80211_hdr *hdr, u8 *key_buffer,
 		mic_hdr->payload_len = cpu_to_be16(payload_len);
 		ether_addr_copy(mic_hdr->mic_addr2, hdr->addr2);
 
-		pn64 = atomic64_read(&tx_key->tx_pn);
+		pn64 = atomic64_read_unchecked(&tx_key->tx_pn);
 		mic_hdr->ccmp_pn[5] = pn64;
 		mic_hdr->ccmp_pn[4] = pn64 >> 8;
 		mic_hdr->ccmp_pn[3] = pn64 >> 16;
diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index b74e320..bd00d63 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -749,7 +749,7 @@ static void vnt_fill_txkey(struct vnt_usb_send_context *tx_context,
 		mic_hdr->payload_len = cpu_to_be16(payload_len);
 		ether_addr_copy(mic_hdr->mic_addr2, hdr->addr2);
 
-		pn64 = atomic64_read(&tx_key->tx_pn);
+		pn64 = atomic64_read_unchecked(&tx_key->tx_pn);
 		mic_hdr->ccmp_pn[5] = pn64;
 		mic_hdr->ccmp_pn[4] = pn64 >> 8;
 		mic_hdr->ccmp_pn[3] = pn64 >> 16;
diff --git a/drivers/staging/wilc1000/host_interface.h b/drivers/staging/wilc1000/host_interface.h
index 01f3222..81ea93a 100644
--- a/drivers/staging/wilc1000/host_interface.h
+++ b/drivers/staging/wilc1000/host_interface.h
@@ -1,6 +1,7 @@
 #ifndef HOST_INT_H
 #define HOST_INT_H
 
+#include <linux/netdevice.h>
 #include "coreconfigurator.h"
 
 #define IP_ALEN  4
diff --git a/drivers/staging/wilc1000/linux_wlan.c b/drivers/staging/wilc1000/linux_wlan.c
index bfa754b..4c98e72 100644
--- a/drivers/staging/wilc1000/linux_wlan.c
+++ b/drivers/staging/wilc1000/linux_wlan.c
@@ -1037,7 +1037,7 @@ static void linux_wlan_tx_complete(void *priv, int status)
 	kfree(pv_data);
 }
 
-int wilc_mac_xmit(struct sk_buff *skb, struct net_device *ndev)
+netdev_tx_t wilc_mac_xmit(struct sk_buff *skb, struct net_device *ndev)
 {
 	struct wilc_vif *vif;
 	struct tx_complete_data *tx_data = NULL;
diff --git a/drivers/staging/wilc1000/wilc_spi.c b/drivers/staging/wilc1000/wilc_spi.c
index d41b8b6..2099b97 100644
--- a/drivers/staging/wilc1000/wilc_spi.c
+++ b/drivers/staging/wilc1000/wilc_spi.c
@@ -19,6 +19,7 @@
 #include <linux/of_gpio.h>
 
 #include <linux/string.h>
+#include <linux/netdevice.h>
 #include "wilc_wlan_if.h"
 #include "wilc_wlan.h"
 #include "wilc_wfi_netdevice.h"
diff --git a/drivers/staging/wilc1000/wilc_wlan.h b/drivers/staging/wilc1000/wilc_wlan.h
index bcd4bfa..41bfba0 100644
--- a/drivers/staging/wilc1000/wilc_wlan.h
+++ b/drivers/staging/wilc1000/wilc_wlan.h
@@ -295,7 +295,7 @@ void wilc_chip_sleep_manually(struct wilc *wilc);
 
 void wilc_enable_tcp_ack_filter(bool value);
 int wilc_wlan_get_num_conn_ifcs(struct wilc *);
-int wilc_mac_xmit(struct sk_buff *skb, struct net_device *dev);
+netdev_tx_t wilc_mac_xmit(struct sk_buff *skb, struct net_device *dev);
 
 int wilc_mac_open(struct net_device *ndev);
 int wilc_mac_close(struct net_device *ndev);
diff --git a/drivers/staging/wlan-ng/p80211netdev.c b/drivers/staging/wlan-ng/p80211netdev.c
index 88255ce..aab2121 100644
--- a/drivers/staging/wlan-ng/p80211netdev.c
+++ b/drivers/staging/wlan-ng/p80211netdev.c
@@ -317,7 +317,7 @@ static void p80211netdev_rx_bh(unsigned long arg)
 * Returns:
 *	zero on success, non-zero on failure.
 ----------------------------------------------------------------*/
-static int p80211knetdev_hard_start_xmit(struct sk_buff *skb,
+static netdev_tx_t p80211knetdev_hard_start_xmit(struct sk_buff *skb,
 					 netdevice_t *netdev)
 {
 	int result = 0;
diff --git a/drivers/target/sbp/sbp_target.c b/drivers/target/sbp/sbp_target.c
index c57e788..24d15dd 100644
--- a/drivers/target/sbp/sbp_target.c
+++ b/drivers/target/sbp/sbp_target.c
@@ -56,7 +56,7 @@ static const u32 sbp_unit_directory_template[] = {
 
 #define SESSION_MAINTENANCE_INTERVAL HZ
 
-static atomic_t login_id = ATOMIC_INIT(0);
+static atomic_unchecked_t login_id = ATOMIC_INIT(0);
 
 static void session_maintenance_work(struct work_struct *);
 static int sbp_run_transaction(struct fw_card *, int, int, int, int,
@@ -422,7 +422,7 @@ static void sbp_management_request_login(
 	login->login_lun = unpacked_lun;
 	login->status_fifo_addr = sbp2_pointer_to_addr(&req->orb.status_fifo);
 	login->exclusive = LOGIN_ORB_EXCLUSIVE(be32_to_cpu(req->orb.misc));
-	login->login_id = atomic_inc_return(&login_id);
+	login->login_id = atomic_inc_return_unchecked(&login_id);
 
 	login->tgt_agt = sbp_target_agent_register(login);
 	if (IS_ERR(login->tgt_agt)) {
diff --git a/drivers/thermal/cpu_cooling.c b/drivers/thermal/cpu_cooling.c
index 6ceac4f..f8059ccd 100644
--- a/drivers/thermal/cpu_cooling.c
+++ b/drivers/thermal/cpu_cooling.c
@@ -838,10 +838,11 @@ __cpufreq_cooling_register(struct device_node *np,
 	cpumask_copy(&cpufreq_dev->allowed_cpus, clip_cpus);
 
 	if (capacitance) {
-		cpufreq_cooling_ops.get_requested_power =
-			cpufreq_get_requested_power;
-		cpufreq_cooling_ops.state2power = cpufreq_state2power;
-		cpufreq_cooling_ops.power2state = cpufreq_power2state;
+		pax_open_kernel();
+		const_cast(cpufreq_cooling_ops.get_requested_power) = cpufreq_get_requested_power;
+		const_cast(cpufreq_cooling_ops.state2power) = cpufreq_state2power;
+		const_cast(cpufreq_cooling_ops.power2state) = cpufreq_power2state;
+		pax_close_kernel();
 		cpufreq_dev->plat_get_static_power = plat_static_func;
 
 		ret = build_dyn_power_table(cpufreq_dev, capacitance);
diff --git a/drivers/thermal/devfreq_cooling.c b/drivers/thermal/devfreq_cooling.c
index 01f0015..aa56551 100644
--- a/drivers/thermal/devfreq_cooling.c
+++ b/drivers/thermal/devfreq_cooling.c
@@ -363,6 +363,15 @@ static struct thermal_cooling_device_ops devfreq_cooling_ops = {
 	.set_cur_state = devfreq_cooling_set_cur_state,
 };
 
+static struct thermal_cooling_device_ops devfreq_cooling_power_ops = {
+	.get_max_state = devfreq_cooling_get_max_state,
+	.get_cur_state = devfreq_cooling_get_cur_state,
+	.set_cur_state = devfreq_cooling_set_cur_state,
+	.get_requested_power = devfreq_cooling_get_requested_power,
+	.state2power = devfreq_cooling_state2power,
+	.power2state = devfreq_cooling_power2state,
+};
+
 /**
  * devfreq_cooling_gen_tables() - Generate power and freq tables.
  * @dfc: Pointer to devfreq cooling device.
@@ -482,15 +491,9 @@ of_devfreq_cooling_register_power(struct device_node *np, struct devfreq *df,
 
 	dfc->devfreq = df;
 
-	if (dfc_power) {
+	if (dfc_power)
 		dfc->power_ops = dfc_power;
 
-		devfreq_cooling_ops.get_requested_power =
-			devfreq_cooling_get_requested_power;
-		devfreq_cooling_ops.state2power = devfreq_cooling_state2power;
-		devfreq_cooling_ops.power2state = devfreq_cooling_power2state;
-	}
-
 	err = devfreq_cooling_gen_tables(dfc);
 	if (err)
 		goto free_dfc;
@@ -502,7 +505,7 @@ of_devfreq_cooling_register_power(struct device_node *np, struct devfreq *df,
 	snprintf(dev_name, sizeof(dev_name), "thermal-devfreq-%d", dfc->id);
 
 	cdev = thermal_of_cooling_device_register(np, dev_name, dfc,
-						  &devfreq_cooling_ops);
+						  dfc_power ? &devfreq_cooling_power_ops : &devfreq_cooling_ops);
 	if (IS_ERR(cdev)) {
 		err = PTR_ERR(cdev);
 		dev_err(df->dev.parent,
diff --git a/drivers/thermal/int340x_thermal/int3400_thermal.c b/drivers/thermal/int340x_thermal/int3400_thermal.c
index 5836e55..708bbd6 100644
--- a/drivers/thermal/int340x_thermal/int3400_thermal.c
+++ b/drivers/thermal/int340x_thermal/int3400_thermal.c
@@ -272,8 +272,10 @@ static int int3400_thermal_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, priv);
 
 	if (priv->uuid_bitmap & 1 << INT3400_THERMAL_PASSIVE_1) {
-		int3400_thermal_ops.get_mode = int3400_thermal_get_mode;
-		int3400_thermal_ops.set_mode = int3400_thermal_set_mode;
+		pax_open_kernel();
+		const_cast(int3400_thermal_ops.get_mode) = int3400_thermal_get_mode;
+		const_cast(int3400_thermal_ops.set_mode) = int3400_thermal_set_mode;
+		pax_close_kernel();
 	}
 	priv->thermal = thermal_zone_device_register("INT3400 Thermal", 0, 0,
 						priv, &int3400_thermal_ops,
diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
index d8ec44b..08609d8 100644
--- a/drivers/thermal/of-thermal.c
+++ b/drivers/thermal/of-thermal.c
@@ -31,6 +31,7 @@
 #include <linux/export.h>
 #include <linux/string.h>
 #include <linux/thermal.h>
+#include <linux/mm.h>
 
 #include "thermal_core.h"
 
@@ -417,9 +418,11 @@ thermal_zone_of_add_sensor(struct device_node *zone,
 	tz->ops = ops;
 	tz->sensor_data = data;
 
-	tzd->ops->get_temp = of_thermal_get_temp;
-	tzd->ops->get_trend = of_thermal_get_trend;
-	tzd->ops->set_emul_temp = of_thermal_set_emul_temp;
+	pax_open_kernel();
+	const_cast(tzd->ops->get_temp) = of_thermal_get_temp;
+	const_cast(tzd->ops->get_trend) = of_thermal_get_trend;
+	const_cast(tzd->ops->set_emul_temp) = of_thermal_set_emul_temp;
+	pax_close_kernel();
 	mutex_unlock(&tzd->lock);
 
 	return tzd;
@@ -545,9 +548,11 @@ void thermal_zone_of_sensor_unregister(struct device *dev,
 		return;
 
 	mutex_lock(&tzd->lock);
-	tzd->ops->get_temp = NULL;
-	tzd->ops->get_trend = NULL;
-	tzd->ops->set_emul_temp = NULL;
+	pax_open_kernel();
+	const_cast(tzd->ops->get_temp) = NULL;
+	const_cast(tzd->ops->get_trend) = NULL;
+	const_cast(tzd->ops->set_emul_temp) = NULL;
+	pax_close_kernel();
 
 	tz->ops = NULL;
 	tz->sensor_data = NULL;
diff --git a/drivers/thermal/x86_pkg_temp_thermal.c b/drivers/thermal/x86_pkg_temp_thermal.c
index 7fc919f..5521ec1 100644
--- a/drivers/thermal/x86_pkg_temp_thermal.c
+++ b/drivers/thermal/x86_pkg_temp_thermal.c
@@ -567,7 +567,7 @@ static int pkg_temp_thermal_cpu_callback(struct notifier_block *nfb,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block pkg_temp_thermal_notifier __refdata = {
+static struct notifier_block pkg_temp_thermal_notifier = {
 	.notifier_call = pkg_temp_thermal_cpu_callback,
 };
 
diff --git a/drivers/tty/cyclades.c b/drivers/tty/cyclades.c
index d67e542..dc84c3d 100644
--- a/drivers/tty/cyclades.c
+++ b/drivers/tty/cyclades.c
@@ -1570,10 +1570,10 @@ static int cy_open(struct tty_struct *tty, struct file *filp)
 	printk(KERN_DEBUG "cyc:cy_open ttyC%d, count = %d\n", info->line,
 			info->port.count);
 #endif
-	info->port.count++;
+	atomic_inc(&info->port.count);
 #ifdef CY_DEBUG_COUNT
 	printk(KERN_DEBUG "cyc:cy_open (%d): incrementing count to %d\n",
-		current->pid, info->port.count);
+		current->pid, atomic_read(&info->port.count));
 #endif
 
 	/*
@@ -3959,7 +3959,7 @@ static int cyclades_proc_show(struct seq_file *m, void *v)
 		for (j = 0; j < cy_card[i].nports; j++) {
 			info = &cy_card[i].ports[j];
 
-			if (info->port.count) {
+			if (atomic_read(&info->port.count)) {
 				/* XXX is the ldisc num worth this? */
 				struct tty_struct *tty;
 				struct tty_ldisc *ld;
diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c
index e46d628..d826fa1 100644
--- a/drivers/tty/hvc/hvc_console.c
+++ b/drivers/tty/hvc/hvc_console.c
@@ -343,7 +343,7 @@ static int hvc_open(struct tty_struct *tty, struct file * filp)
 
 	spin_lock_irqsave(&hp->port.lock, flags);
 	/* Check and then increment for fast path open. */
-	if (hp->port.count++ > 0) {
+	if (atomic_inc_return(&hp->port.count) > 1) {
 		spin_unlock_irqrestore(&hp->port.lock, flags);
 		hvc_kick();
 		return 0;
@@ -398,7 +398,7 @@ static void hvc_close(struct tty_struct *tty, struct file * filp)
 
 	spin_lock_irqsave(&hp->port.lock, flags);
 
-	if (--hp->port.count == 0) {
+	if (atomic_dec_return(&hp->port.count) == 0) {
 		spin_unlock_irqrestore(&hp->port.lock, flags);
 		/* We are done with the tty pointer now. */
 		tty_port_tty_set(&hp->port, NULL);
@@ -420,9 +420,9 @@ static void hvc_close(struct tty_struct *tty, struct file * filp)
 		 */
 		tty_wait_until_sent(tty, HVC_CLOSE_WAIT);
 	} else {
-		if (hp->port.count < 0)
+		if (atomic_read(&hp->port.count) < 0)
 			printk(KERN_ERR "hvc_close %X: oops, count is %d\n",
-				hp->vtermno, hp->port.count);
+				hp->vtermno, atomic_read(&hp->port.count));
 		spin_unlock_irqrestore(&hp->port.lock, flags);
 	}
 }
@@ -452,12 +452,12 @@ static void hvc_hangup(struct tty_struct *tty)
 	 * open->hangup case this can be called after the final close so prevent
 	 * that from happening for now.
 	 */
-	if (hp->port.count <= 0) {
+	if (atomic_read(&hp->port.count) <= 0) {
 		spin_unlock_irqrestore(&hp->port.lock, flags);
 		return;
 	}
 
-	hp->port.count = 0;
+	atomic_set(&hp->port.count, 0);
 	spin_unlock_irqrestore(&hp->port.lock, flags);
 	tty_port_tty_set(&hp->port, NULL);
 
@@ -505,7 +505,7 @@ static int hvc_write(struct tty_struct *tty, const unsigned char *buf, int count
 		return -EPIPE;
 
 	/* FIXME what's this (unprotected) check for? */
-	if (hp->port.count <= 0)
+	if (atomic_read(&hp->port.count) <= 0)
 		return -EIO;
 
 	spin_lock_irqsave(&hp->lock, flags);
diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c
index 5997b17..6851dbc 100644
--- a/drivers/tty/hvc/hvcs.c
+++ b/drivers/tty/hvc/hvcs.c
@@ -83,6 +83,7 @@
 #include <asm/hvcserver.h>
 #include <asm/uaccess.h>
 #include <asm/vio.h>
+#include <asm/local.h>
 
 /*
  * 1.3.0 -> 1.3.1 In hvcs_open memset(..,0x00,..) instead of memset(..,0x3F,00).
@@ -416,7 +417,7 @@ static ssize_t hvcs_vterm_state_store(struct device *dev, struct device_attribut
 
 	spin_lock_irqsave(&hvcsd->lock, flags);
 
-	if (hvcsd->port.count > 0) {
+	if (atomic_read(&hvcsd->port.count) > 0) {
 		spin_unlock_irqrestore(&hvcsd->lock, flags);
 		printk(KERN_INFO "HVCS: vterm state unchanged.  "
 				"The hvcs device node is still in use.\n");
@@ -1127,7 +1128,7 @@ static int hvcs_install(struct tty_driver *driver, struct tty_struct *tty)
 		}
 	}
 
-	hvcsd->port.count = 0;
+	atomic_set(&hvcsd->port.count, 0);
 	hvcsd->port.tty = tty;
 	tty->driver_data = hvcsd;
 
@@ -1180,7 +1181,7 @@ static int hvcs_open(struct tty_struct *tty, struct file *filp)
 	unsigned long flags;
 
 	spin_lock_irqsave(&hvcsd->lock, flags);
-	hvcsd->port.count++;
+	atomic_inc(&hvcsd->port.count);
 	hvcsd->todo_mask |= HVCS_SCHED_READ;
 	spin_unlock_irqrestore(&hvcsd->lock, flags);
 
@@ -1216,7 +1217,7 @@ static void hvcs_close(struct tty_struct *tty, struct file *filp)
 	hvcsd = tty->driver_data;
 
 	spin_lock_irqsave(&hvcsd->lock, flags);
-	if (--hvcsd->port.count == 0) {
+	if (atomic_dec_and_test(&hvcsd->port.count)) {
 
 		vio_disable_interrupts(hvcsd->vdev);
 
@@ -1241,10 +1242,10 @@ static void hvcs_close(struct tty_struct *tty, struct file *filp)
 
 		free_irq(irq, hvcsd);
 		return;
-	} else if (hvcsd->port.count < 0) {
+	} else if (atomic_read(&hvcsd->port.count) < 0) {
 		printk(KERN_ERR "HVCS: vty-server@%X open_count: %d"
 				" is missmanaged.\n",
-		hvcsd->vdev->unit_address, hvcsd->port.count);
+		hvcsd->vdev->unit_address, atomic_read(&hvcsd->port.count));
 	}
 
 	spin_unlock_irqrestore(&hvcsd->lock, flags);
@@ -1266,7 +1267,7 @@ static void hvcs_hangup(struct tty_struct * tty)
 
 	spin_lock_irqsave(&hvcsd->lock, flags);
 	/* Preserve this so that we know how many kref refs to put */
-	temp_open_count = hvcsd->port.count;
+	temp_open_count = atomic_read(&hvcsd->port.count);
 
 	/*
 	 * Don't kref put inside the spinlock because the destruction
@@ -1281,7 +1282,7 @@ static void hvcs_hangup(struct tty_struct * tty)
 	tty->driver_data = NULL;
 	hvcsd->port.tty = NULL;
 
-	hvcsd->port.count = 0;
+	atomic_set(&hvcsd->port.count, 0);
 
 	/* This will drop any buffered data on the floor which is OK in a hangup
 	 * scenario. */
@@ -1352,7 +1353,7 @@ static int hvcs_write(struct tty_struct *tty,
 	 * the middle of a write operation?  This is a crummy place to do this
 	 * but we want to keep it all in the spinlock.
 	 */
-	if (hvcsd->port.count <= 0) {
+	if (atomic_read(&hvcsd->port.count) <= 0) {
 		spin_unlock_irqrestore(&hvcsd->lock, flags);
 		return -ENODEV;
 	}
@@ -1426,7 +1427,7 @@ static int hvcs_write_room(struct tty_struct *tty)
 {
 	struct hvcs_struct *hvcsd = tty->driver_data;
 
-	if (!hvcsd || hvcsd->port.count <= 0)
+	if (!hvcsd || atomic_read(&hvcsd->port.count) <= 0)
 		return 0;
 
 	return HVCS_BUFF_LEN - hvcsd->chars_in_buffer;
diff --git a/drivers/tty/hvc/hvsi.c b/drivers/tty/hvc/hvsi.c
index a75146f..a52c717 100644
--- a/drivers/tty/hvc/hvsi.c
+++ b/drivers/tty/hvc/hvsi.c
@@ -85,7 +85,7 @@ struct hvsi_struct {
 	int n_outbuf;
 	uint32_t vtermno;
 	uint32_t virq;
-	atomic_t seqno; /* HVSI packet sequence number */
+	atomic_unchecked_t seqno; /* HVSI packet sequence number */
 	uint16_t mctrl;
 	uint8_t state;  /* HVSI protocol state */
 	uint8_t flags;
@@ -297,7 +297,7 @@ static int hvsi_version_respond(struct hvsi_struct *hp, uint16_t query_seqno)
 
 	packet.hdr.type = VS_QUERY_RESPONSE_PACKET_HEADER;
 	packet.hdr.len = sizeof(struct hvsi_query_response);
-	packet.hdr.seqno = cpu_to_be16(atomic_inc_return(&hp->seqno));
+	packet.hdr.seqno = cpu_to_be16(atomic_inc_return_unchecked(&hp->seqno));
 	packet.verb = cpu_to_be16(VSV_SEND_VERSION_NUMBER);
 	packet.u.version = HVSI_VERSION;
 	packet.query_seqno = cpu_to_be16(query_seqno+1);
@@ -557,7 +557,7 @@ static int hvsi_query(struct hvsi_struct *hp, uint16_t verb)
 
 	packet.hdr.type = VS_QUERY_PACKET_HEADER;
 	packet.hdr.len = sizeof(struct hvsi_query);
-	packet.hdr.seqno = cpu_to_be16(atomic_inc_return(&hp->seqno));
+	packet.hdr.seqno = cpu_to_be16(atomic_inc_return_unchecked(&hp->seqno));
 	packet.verb = cpu_to_be16(verb);
 
 	pr_debug("%s: sending %i bytes\n", __func__, packet.hdr.len);
@@ -599,7 +599,7 @@ static int hvsi_set_mctrl(struct hvsi_struct *hp, uint16_t mctrl)
 	int wrote;
 
 	packet.hdr.type = VS_CONTROL_PACKET_HEADER;
-	packet.hdr.seqno = cpu_to_be16(atomic_inc_return(&hp->seqno));
+	packet.hdr.seqno = cpu_to_be16(atomic_inc_return_unchecked(&hp->seqno));
 	packet.hdr.len = sizeof(struct hvsi_control);
 	packet.verb = cpu_to_be16(VSV_SET_MODEM_CTL);
 	packet.mask = cpu_to_be32(HVSI_TSDTR);
@@ -682,7 +682,7 @@ static int hvsi_put_chars(struct hvsi_struct *hp, const char *buf, int count)
 	BUG_ON(count > HVSI_MAX_OUTGOING_DATA);
 
 	packet.hdr.type = VS_DATA_PACKET_HEADER;
-	packet.hdr.seqno = cpu_to_be16(atomic_inc_return(&hp->seqno));
+	packet.hdr.seqno = cpu_to_be16(atomic_inc_return_unchecked(&hp->seqno));
 	packet.hdr.len = count + sizeof(struct hvsi_header);
 	memcpy(&packet.data, buf, count);
 
@@ -699,7 +699,7 @@ static void hvsi_close_protocol(struct hvsi_struct *hp)
 	struct hvsi_control packet __ALIGNED__;
 
 	packet.hdr.type = VS_CONTROL_PACKET_HEADER;
-	packet.hdr.seqno = cpu_to_be16(atomic_inc_return(&hp->seqno));
+	packet.hdr.seqno = cpu_to_be16(atomic_inc_return_unchecked(&hp->seqno));
 	packet.hdr.len = 6;
 	packet.verb = cpu_to_be16(VSV_CLOSE_PROTOCOL);
 
@@ -727,7 +727,7 @@ static int hvsi_open(struct tty_struct *tty, struct file *filp)
 
 	tty_port_tty_set(&hp->port, tty);
 	spin_lock_irqsave(&hp->lock, flags);
-	hp->port.count++;
+	atomic_inc(&hp->port.count);
 	atomic_set(&hp->seqno, 0);
 	h_vio_signal(hp->vtermno, VIO_IRQ_ENABLE);
 	spin_unlock_irqrestore(&hp->lock, flags);
@@ -784,7 +784,7 @@ static void hvsi_close(struct tty_struct *tty, struct file *filp)
 
 	spin_lock_irqsave(&hp->lock, flags);
 
-	if (--hp->port.count == 0) {
+	if (atomic_dec_return(&hp->port.count) == 0) {
 		tty_port_tty_set(&hp->port, NULL);
 		hp->inbuf_end = hp->inbuf; /* discard remaining partial packets */
 
@@ -817,9 +817,9 @@ static void hvsi_close(struct tty_struct *tty, struct file *filp)
 
 			spin_lock_irqsave(&hp->lock, flags);
 		}
-	} else if (hp->port.count < 0)
+	} else if (atomic_read(&hp->port.count) < 0)
 		printk(KERN_ERR "hvsi_close %lu: oops, count is %d\n",
-		       hp - hvsi_ports, hp->port.count);
+		       hp - hvsi_ports, atomic_read(&hp->port.count));
 
 	spin_unlock_irqrestore(&hp->lock, flags);
 }
@@ -834,7 +834,7 @@ static void hvsi_hangup(struct tty_struct *tty)
 	tty_port_tty_set(&hp->port, NULL);
 
 	spin_lock_irqsave(&hp->lock, flags);
-	hp->port.count = 0;
+	atomic_set(&hp->port.count, 0);
 	hp->n_outbuf = 0;
 	spin_unlock_irqrestore(&hp->lock, flags);
 }
diff --git a/drivers/tty/hvc/hvsi_lib.c b/drivers/tty/hvc/hvsi_lib.c
index a270f04..7c77b5d 100644
--- a/drivers/tty/hvc/hvsi_lib.c
+++ b/drivers/tty/hvc/hvsi_lib.c
@@ -8,7 +8,7 @@
 
 static int hvsi_send_packet(struct hvsi_priv *pv, struct hvsi_header *packet)
 {
-	packet->seqno = cpu_to_be16(atomic_inc_return(&pv->seqno));
+	packet->seqno = cpu_to_be16(atomic_inc_return_unchecked(&pv->seqno));
 
 	/* Assumes that always succeeds, works in practice */
 	return pv->put_chars(pv->termno, (char *)packet, packet->len);
@@ -20,7 +20,7 @@ static void hvsi_start_handshake(struct hvsi_priv *pv)
 
 	/* Reset state */
 	pv->established = 0;
-	atomic_set(&pv->seqno, 0);
+	atomic_set_unchecked(&pv->seqno, 0);
 
 	pr_devel("HVSI@%x: Handshaking started\n", pv->termno);
 
diff --git a/drivers/tty/ipwireless/tty.c b/drivers/tty/ipwireless/tty.c
index 345cebb..d5a1e9e 100644
--- a/drivers/tty/ipwireless/tty.c
+++ b/drivers/tty/ipwireless/tty.c
@@ -28,6 +28,7 @@
 #include <linux/tty_driver.h>
 #include <linux/tty_flip.h>
 #include <linux/uaccess.h>
+#include <asm/local.h>
 
 #include "tty.h"
 #include "network.h"
@@ -93,10 +94,10 @@ static int ipw_open(struct tty_struct *linux_tty, struct file *filp)
 		return -ENODEV;
 
 	mutex_lock(&tty->ipw_tty_mutex);
-	if (tty->port.count == 0)
+	if (atomic_read(&tty->port.count) == 0)
 		tty->tx_bytes_queued = 0;
 
-	tty->port.count++;
+	atomic_inc(&tty->port.count);
 
 	tty->port.tty = linux_tty;
 	linux_tty->driver_data = tty;
@@ -112,9 +113,7 @@ static int ipw_open(struct tty_struct *linux_tty, struct file *filp)
 
 static void do_ipw_close(struct ipw_tty *tty)
 {
-	tty->port.count--;
-
-	if (tty->port.count == 0) {
+	if (atomic_dec_return(&tty->port.count) == 0) {
 		struct tty_struct *linux_tty = tty->port.tty;
 
 		if (linux_tty != NULL) {
@@ -135,7 +134,7 @@ static void ipw_hangup(struct tty_struct *linux_tty)
 		return;
 
 	mutex_lock(&tty->ipw_tty_mutex);
-	if (tty->port.count == 0) {
+	if (atomic_read(&tty->port.count) == 0) {
 		mutex_unlock(&tty->ipw_tty_mutex);
 		return;
 	}
@@ -158,7 +157,7 @@ void ipwireless_tty_received(struct ipw_tty *tty, unsigned char *data,
 
 	mutex_lock(&tty->ipw_tty_mutex);
 
-	if (!tty->port.count) {
+	if (!atomic_read(&tty->port.count)) {
 		mutex_unlock(&tty->ipw_tty_mutex);
 		return;
 	}
@@ -197,7 +196,7 @@ static int ipw_write(struct tty_struct *linux_tty,
 		return -ENODEV;
 
 	mutex_lock(&tty->ipw_tty_mutex);
-	if (!tty->port.count) {
+	if (!atomic_read(&tty->port.count)) {
 		mutex_unlock(&tty->ipw_tty_mutex);
 		return -EINVAL;
 	}
@@ -237,7 +236,7 @@ static int ipw_write_room(struct tty_struct *linux_tty)
 	if (!tty)
 		return -ENODEV;
 
-	if (!tty->port.count)
+	if (!atomic_read(&tty->port.count))
 		return -EINVAL;
 
 	room = IPWIRELESS_TX_QUEUE_SIZE - tty->tx_bytes_queued;
@@ -279,7 +278,7 @@ static int ipw_chars_in_buffer(struct tty_struct *linux_tty)
 	if (!tty)
 		return 0;
 
-	if (!tty->port.count)
+	if (!atomic_read(&tty->port.count))
 		return 0;
 
 	return tty->tx_bytes_queued;
@@ -360,7 +359,7 @@ static int ipw_tiocmget(struct tty_struct *linux_tty)
 	if (!tty)
 		return -ENODEV;
 
-	if (!tty->port.count)
+	if (!atomic_read(&tty->port.count))
 		return -EINVAL;
 
 	return get_control_lines(tty);
@@ -376,7 +375,7 @@ ipw_tiocmset(struct tty_struct *linux_tty,
 	if (!tty)
 		return -ENODEV;
 
-	if (!tty->port.count)
+	if (!atomic_read(&tty->port.count))
 		return -EINVAL;
 
 	return set_control_lines(tty, set, clear);
@@ -390,7 +389,7 @@ static int ipw_ioctl(struct tty_struct *linux_tty,
 	if (!tty)
 		return -ENODEV;
 
-	if (!tty->port.count)
+	if (!atomic_read(&tty->port.count))
 		return -EINVAL;
 
 	/* FIXME: Exactly how is the tty object locked here .. */
@@ -546,7 +545,7 @@ void ipwireless_tty_free(struct ipw_tty *tty)
 				 * are gone */
 				mutex_lock(&ttyj->ipw_tty_mutex);
 			}
-			while (ttyj->port.count)
+			while (atomic_read(&ttyj->port.count))
 				do_ipw_close(ttyj);
 			ipwireless_disassociate_network_ttys(network,
 							     ttyj->channel_idx);
diff --git a/drivers/tty/moxa.c b/drivers/tty/moxa.c
index 92982d7..758ecfe 100644
--- a/drivers/tty/moxa.c
+++ b/drivers/tty/moxa.c
@@ -1188,7 +1188,7 @@ static int moxa_open(struct tty_struct *tty, struct file *filp)
 	}
 
 	ch = &brd->ports[port % MAX_PORTS_PER_BOARD];
-	ch->port.count++;
+	atomic_inc(&ch->port.count);
 	tty->driver_data = ch;
 	tty_port_tty_set(&ch->port, tty);
 	mutex_lock(&ch->port.mutex);
diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index 365dfd8..7b7d867 100644
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -1644,7 +1644,7 @@ static struct gsm_dlci *gsm_dlci_alloc(struct gsm_mux *gsm, int addr)
 	spin_lock_init(&dlci->lock);
 	mutex_init(&dlci->mutex);
 	dlci->fifo = &dlci->_fifo;
-	if (kfifo_alloc(&dlci->_fifo, 4096, GFP_KERNEL) < 0) {
+	if (kfifo_alloc(&dlci->_fifo, 4096, GFP_KERNEL)) {
 		kfree(dlci);
 		return NULL;
 	}
@@ -2652,7 +2652,7 @@ static inline void muxnet_put(struct gsm_mux_net *mux_net)
 	kref_put(&mux_net->ref, net_free);
 }
 
-static int gsm_mux_net_start_xmit(struct sk_buff *skb,
+static netdev_tx_t gsm_mux_net_start_xmit(struct sk_buff *skb,
 				      struct net_device *net)
 {
 	struct gsm_mux_net *mux_net = netdev_priv(net);
@@ -2943,7 +2943,7 @@ static int gsmtty_open(struct tty_struct *tty, struct file *filp)
 	struct gsm_dlci *dlci = tty->driver_data;
 	struct tty_port *port = &dlci->port;
 
-	port->count++;
+	atomic_inc(&port->count);
 	tty_port_tty_set(port, tty);
 
 	dlci->modem_rx = 0;
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index bdf0e6e..ea92f7e 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -1478,7 +1478,7 @@ n_tty_receive_char_lnext(struct tty_struct *tty, unsigned char c, char flag)
 
 static void
 n_tty_receive_buf_real_raw(struct tty_struct *tty, const unsigned char *cp,
-			   char *fp, int count)
+			   char *fp, size_t count)
 {
 	struct n_tty_data *ldata = tty->disc_data;
 	size_t n, head;
@@ -1498,7 +1498,7 @@ n_tty_receive_buf_real_raw(struct tty_struct *tty, const unsigned char *cp,
 
 static void
 n_tty_receive_buf_raw(struct tty_struct *tty, const unsigned char *cp,
-		      char *fp, int count)
+		      char *fp, size_t count)
 {
 	struct n_tty_data *ldata = tty->disc_data;
 	char flag = TTY_NORMAL;
@@ -1515,7 +1515,7 @@ n_tty_receive_buf_raw(struct tty_struct *tty, const unsigned char *cp,
 
 static void
 n_tty_receive_buf_closing(struct tty_struct *tty, const unsigned char *cp,
-			  char *fp, int count)
+			  char *fp, size_t count)
 {
 	char flag = TTY_NORMAL;
 
@@ -1529,7 +1529,7 @@ n_tty_receive_buf_closing(struct tty_struct *tty, const unsigned char *cp,
 
 static void
 n_tty_receive_buf_standard(struct tty_struct *tty, const unsigned char *cp,
-			  char *fp, int count)
+			  char *fp, size_t count)
 {
 	struct n_tty_data *ldata = tty->disc_data;
 	char flag = TTY_NORMAL;
@@ -1563,7 +1563,7 @@ n_tty_receive_buf_standard(struct tty_struct *tty, const unsigned char *cp,
 
 static void
 n_tty_receive_buf_fast(struct tty_struct *tty, const unsigned char *cp,
-		       char *fp, int count)
+		       char *fp, size_t count)
 {
 	struct n_tty_data *ldata = tty->disc_data;
 	char flag = TTY_NORMAL;
@@ -1588,7 +1588,7 @@ n_tty_receive_buf_fast(struct tty_struct *tty, const unsigned char *cp,
 }
 
 static void __receive_buf(struct tty_struct *tty, const unsigned char *cp,
-			  char *fp, int count)
+			  char *fp, size_t count)
 {
 	struct n_tty_data *ldata = tty->disc_data;
 	bool preops = I_ISTRIP(tty) || (I_IUCLC(tty) && L_IEXTEN(tty));
@@ -1666,10 +1666,10 @@ static void __receive_buf(struct tty_struct *tty, const unsigned char *cp,
  */
 static int
 n_tty_receive_buf_common(struct tty_struct *tty, const unsigned char *cp,
-			 char *fp, int count, int flow)
+			 char *fp, size_t count, int flow)
 {
 	struct n_tty_data *ldata = tty->disc_data;
-	int room, n, rcvd = 0, overflow;
+	size_t room, n, rcvd = 0, overflow;
 
 	down_read(&tty->termios_rwsem);
 
@@ -1692,15 +1692,16 @@ n_tty_receive_buf_common(struct tty_struct *tty, const unsigned char *cp,
 		room = N_TTY_BUF_SIZE - (ldata->read_head - tail);
 		if (I_PARMRK(tty))
 			room = (room + 2) / 3;
-		room--;
-		if (room <= 0) {
+		if (room <= 1) {
 			overflow = ldata->icanon && ldata->canon_head == tail;
-			if (overflow && room < 0)
+			if (overflow && room == 0)
 				ldata->read_head--;
 			room = overflow;
 			ldata->no_room = flow && !room;
-		} else
+		} else {
+			room--;
 			overflow = 0;
+		}
 
 		n = min(count, room);
 		if (!n)
@@ -2465,7 +2466,8 @@ void n_tty_inherit_ops(struct tty_ldisc_ops *ops)
 {
 	*ops = n_tty_ops;
 	ops->owner = NULL;
-	ops->refcount = ops->flags = 0;
+	atomic_set(&ops->refcount, 0);
+	ops->flags = 0;
 }
 EXPORT_SYMBOL_GPL(n_tty_inherit_ops);
 
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index e198996..f2b79a2 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -852,8 +852,10 @@ static void __init unix98_pty_init(void)
 		panic("Couldn't register Unix98 pts driver");
 
 	/* Now create the /dev/ptmx special device */
+	pax_open_kernel();
 	tty_default_fops(&ptmx_fops);
-	ptmx_fops.open = ptmx_open;
+	const_cast(ptmx_fops.open) = ptmx_open;
+	pax_close_kernel();
 
 	cdev_init(&ptmx_cdev, &ptmx_fops);
 	if (cdev_add(&ptmx_cdev, MKDEV(TTYAUX_MAJOR, 2), 1) ||
diff --git a/drivers/tty/rocket.c b/drivers/tty/rocket.c
index 0b802cd..70afed6 100644
--- a/drivers/tty/rocket.c
+++ b/drivers/tty/rocket.c
@@ -905,7 +905,7 @@ static int rp_open(struct tty_struct *tty, struct file *filp)
 	tty->driver_data = info;
 	tty_port_tty_set(port, tty);
 
-	if (port->count++ == 0) {
+	if (atomic_inc_return(&port->count) == 1) {
 		atomic_inc(&rp_num_ports_open);
 
 #ifdef ROCKET_DEBUG_OPEN
@@ -914,7 +914,7 @@ static int rp_open(struct tty_struct *tty, struct file *filp)
 #endif
 	}
 #ifdef ROCKET_DEBUG_OPEN
-	printk(KERN_INFO "rp_open ttyR%d, count=%d\n", info->line, info->port.count);
+	printk(KERN_INFO "rp_open ttyR%d, count=%d\n", info->line, atomic-read(&info->port.count));
 #endif
 
 	/*
@@ -1498,7 +1498,7 @@ static void rp_hangup(struct tty_struct *tty)
 #endif
 	rp_flush_buffer(tty);
 	spin_lock_irqsave(&info->port.lock, flags);
-	if (info->port.count)
+	if (atomic_read(&info->port.count))
 		atomic_dec(&rp_num_ports_open);
 	clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
 	spin_unlock_irqrestore(&info->port.lock, flags);
diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
index 2f4f5ee..fed5cc6 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -488,9 +488,9 @@ static void univ8250_release_port(struct uart_port *port)
 
 static void univ8250_rsa_support(struct uart_ops *ops)
 {
-	ops->config_port  = univ8250_config_port;
-	ops->request_port = univ8250_request_port;
-	ops->release_port = univ8250_release_port;
+	const_cast(ops->config_port)  = univ8250_config_port;
+	const_cast(ops->request_port) = univ8250_request_port;
+	const_cast(ops->release_port) = univ8250_release_port;
 }
 
 #else
@@ -533,8 +533,10 @@ static void __init serial8250_isa_init_ports(void)
 	}
 
 	/* chain base port ops to support Remote Supervisor Adapter */
-	univ8250_port_ops = *base_ops;
+	pax_open_kernel();
+	memcpy((void *)&univ8250_port_ops, base_ops, sizeof univ8250_port_ops);
 	univ8250_rsa_support(&univ8250_port_ops);
+	pax_close_kernel();
 
 	if (share_irqs)
 		irqflag = IRQF_SHARED;
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index 4eedd1d..4868f61 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -5620,7 +5620,7 @@ static struct pci_device_id serial_pci_tbl[] = {
 };
 
 static pci_ers_result_t serial8250_io_error_detected(struct pci_dev *dev,
-						pci_channel_state_t state)
+						enum pci_channel_state state)
 {
 	struct serial_private *priv = pci_get_drvdata(dev);
 
diff --git a/drivers/tty/serial/ifx6x60.c b/drivers/tty/serial/ifx6x60.c
index 2085a6c..d386346 100644
--- a/drivers/tty/serial/ifx6x60.c
+++ b/drivers/tty/serial/ifx6x60.c
@@ -651,7 +651,7 @@ static void ifx_spi_complete(void *ctx)
 	struct ifx_spi_device *ifx_dev = ctx;
 	int length;
 	int actual_length;
-	unsigned char more;
+	unsigned char more = 0;
 	unsigned char cts;
 	int local_write_pending = 0;
 	int queue_length;
diff --git a/drivers/tty/serial/ioc4_serial.c b/drivers/tty/serial/ioc4_serial.c
index e5c42fe..f091b02 100644
--- a/drivers/tty/serial/ioc4_serial.c
+++ b/drivers/tty/serial/ioc4_serial.c
@@ -437,7 +437,7 @@ struct ioc4_soft {
 		} is_intr_info[MAX_IOC4_INTR_ENTS];
 
 		/* Number of entries active in the above array */
-		atomic_t is_num_intrs;
+		atomic_unchecked_t is_num_intrs;
 	} is_intr_type[IOC4_NUM_INTR_TYPES];
 
 	/* is_ir_lock must be held while
@@ -974,7 +974,7 @@ intr_connect(struct ioc4_soft *soft, int type,
 	BUG_ON(!((type == IOC4_SIO_INTR_TYPE)
 	       || (type == IOC4_OTHER_INTR_TYPE)));
 
-	i = atomic_inc_return(&soft-> is_intr_type[type].is_num_intrs) - 1;
+	i = atomic_inc_return_unchecked(&soft-> is_intr_type[type].is_num_intrs) - 1;
 	BUG_ON(!(i < MAX_IOC4_INTR_ENTS || (printk("i %d\n", i), 0)));
 
 	/* Save off the lower level interrupt handler */
@@ -1001,7 +1001,7 @@ static irqreturn_t ioc4_intr(int irq, void *arg)
 
 	soft = arg;
 	for (intr_type = 0; intr_type < IOC4_NUM_INTR_TYPES; intr_type++) {
-		num_intrs = (int)atomic_read(
+		num_intrs = (int)atomic_read_unchecked(
 				&soft->is_intr_type[intr_type].is_num_intrs);
 
 		this_mir = this_ir = pending_intrs(soft, intr_type);
diff --git a/drivers/tty/serial/jsm/jsm_driver.c b/drivers/tty/serial/jsm/jsm_driver.c
index a119f11..120444e 100644
--- a/drivers/tty/serial/jsm/jsm_driver.c
+++ b/drivers/tty/serial/jsm/jsm_driver.c
@@ -336,7 +336,7 @@ static struct pci_driver jsm_driver = {
 };
 
 static pci_ers_result_t jsm_io_error_detected(struct pci_dev *pdev,
-					pci_channel_state_t state)
+					enum pci_channel_state state)
 {
 	struct jsm_board *brd = pci_get_drvdata(pdev);
 
diff --git a/drivers/tty/serial/kgdb_nmi.c b/drivers/tty/serial/kgdb_nmi.c
index 117df15..8f7486f 100644
--- a/drivers/tty/serial/kgdb_nmi.c
+++ b/drivers/tty/serial/kgdb_nmi.c
@@ -53,7 +53,9 @@ static int kgdb_nmi_console_setup(struct console *co, char *options)
 	 * I/O utilities that messages sent to the console will automatically
 	 * be displayed on the dbg_io.
 	 */
-	dbg_io_ops->is_console = true;
+	pax_open_kernel();
+	const_cast(dbg_io_ops->is_console) = true;
+	pax_close_kernel();
 
 	return 0;
 }
diff --git a/drivers/tty/serial/kgdboc.c b/drivers/tty/serial/kgdboc.c
index a260cde..604fce9 100644
--- a/drivers/tty/serial/kgdboc.c
+++ b/drivers/tty/serial/kgdboc.c
@@ -24,8 +24,9 @@
 #define MAX_CONFIG_LEN		40
 
 static struct kgdb_io		kgdboc_io_ops;
+static struct kgdb_io		kgdboc_io_ops_console;
 
-/* -1 = init not run yet, 0 = unconfigured, 1 = configured. */
+/* -1 = init not run yet, 0 = unconfigured, 1/2 = configured. */
 static int configured		= -1;
 
 static char config[MAX_CONFIG_LEN];
@@ -151,6 +152,8 @@ static void cleanup_kgdboc(void)
 	kgdboc_unregister_kbd();
 	if (configured == 1)
 		kgdb_unregister_io_module(&kgdboc_io_ops);
+	else if (configured == 2)
+		kgdb_unregister_io_module(&kgdboc_io_ops_console);
 }
 
 static int configure_kgdboc(void)
@@ -160,13 +163,13 @@ static int configure_kgdboc(void)
 	int err;
 	char *cptr = config;
 	struct console *cons;
+	int is_console = 0;
 
 	err = kgdboc_option_setup(config);
 	if (err || !strlen(config) || isspace(config[0]))
 		goto noconfig;
 
 	err = -ENODEV;
-	kgdboc_io_ops.is_console = 0;
 	kgdb_tty_driver = NULL;
 
 	kgdboc_use_kms = 0;
@@ -187,7 +190,7 @@ static int configure_kgdboc(void)
 		int idx;
 		if (cons->device && cons->device(cons, &idx) == p &&
 		    idx == tty_line) {
-			kgdboc_io_ops.is_console = 1;
+			is_console = 1;
 			break;
 		}
 		cons = cons->next;
@@ -197,7 +200,13 @@ static int configure_kgdboc(void)
 	kgdb_tty_line = tty_line;
 
 do_register:
-	err = kgdb_register_io_module(&kgdboc_io_ops);
+	if (is_console) {
+		err = kgdb_register_io_module(&kgdboc_io_ops_console);
+		configured = 2;
+	} else {
+		err = kgdb_register_io_module(&kgdboc_io_ops);
+		configured = 1;
+	}
 	if (err)
 		goto noconfig;
 
@@ -205,8 +214,6 @@ do_register:
 	if (err)
 		goto nmi_con_failed;
 
-	configured = 1;
-
 	return 0;
 
 nmi_con_failed:
@@ -223,7 +230,7 @@ noconfig:
 static int __init init_kgdboc(void)
 {
 	/* Already configured? */
-	if (configured == 1)
+	if (configured >= 1)
 		return 0;
 
 	return configure_kgdboc();
@@ -245,7 +252,7 @@ static void kgdboc_put_char(u8 chr)
 					kgdb_tty_line, chr);
 }
 
-static int param_set_kgdboc_var(const char *kmessage, struct kernel_param *kp)
+static int param_set_kgdboc_var(const char *kmessage, const struct kernel_param *kp)
 {
 	int len = strlen(kmessage);
 
@@ -272,7 +279,7 @@ static int param_set_kgdboc_var(const char *kmessage, struct kernel_param *kp)
 	if (config[len - 1] == '\n')
 		config[len - 1] = '\0';
 
-	if (configured == 1)
+	if (configured >= 1)
 		cleanup_kgdboc();
 
 	/* Go and configure with the new params. */
@@ -312,6 +319,15 @@ static struct kgdb_io kgdboc_io_ops = {
 	.post_exception		= kgdboc_post_exp_handler,
 };
 
+static struct kgdb_io kgdboc_io_ops_console = {
+	.name			= "kgdboc",
+	.read_char		= kgdboc_get_char,
+	.write_char		= kgdboc_put_char,
+	.pre_exception		= kgdboc_pre_exp_handler,
+	.post_exception		= kgdboc_post_exp_handler,
+	.is_console		= 1
+};
+
 #ifdef CONFIG_KGDB_SERIAL_CONSOLE
 /* This is only available if kgdboc is a built in for early debugging */
 static int __init kgdboc_early_init(char *opt)
diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
index 96d3ce8..112fce3 100644
--- a/drivers/tty/serial/msm_serial.c
+++ b/drivers/tty/serial/msm_serial.c
@@ -1528,7 +1528,7 @@ static struct uart_driver msm_uart_driver = {
 	.cons = MSM_CONSOLE,
 };
 
-static atomic_t msm_uart_next_id = ATOMIC_INIT(0);
+static atomic_unchecked_t msm_uart_next_id = ATOMIC_INIT(0);
 
 static const struct of_device_id msm_uartdm_table[] = {
 	{ .compatible = "qcom,msm-uartdm-v1.1", .data = (void *)UARTDM_1P1 },
@@ -1552,7 +1552,7 @@ static int msm_serial_probe(struct platform_device *pdev)
 		line = pdev->id;
 
 	if (line < 0)
-		line = atomic_inc_return(&msm_uart_next_id) - 1;
+		line = atomic_inc_return_unchecked(&msm_uart_next_id) - 1;
 
 	if (unlikely(line < 0 || line >= UART_NR))
 		return -ENXIO;
diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
index 99bb231..ba80b07 100644
--- a/drivers/tty/serial/samsung.c
+++ b/drivers/tty/serial/samsung.c
@@ -978,11 +978,16 @@ static void s3c24xx_serial_shutdown(struct uart_port *port)
 	ourport->tx_in_progress = 0;
 }
 
+static int s3c64xx_serial_startup(struct uart_port *port);
 static int s3c24xx_serial_startup(struct uart_port *port)
 {
 	struct s3c24xx_uart_port *ourport = to_ourport(port);
 	int ret;
 
+	/* Startup sequence is different for s3c64xx and higher SoC's */
+	if (s3c24xx_serial_has_interrupt_mask(port))
+		return s3c64xx_serial_startup(port);
+
 	dbg("s3c24xx_serial_startup: port=%p (%08llx,%p)\n",
 	    port, (unsigned long long)port->mapbase, port->membase);
 
@@ -1689,10 +1694,6 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport,
 	/* setup info for port */
 	port->dev	= &platdev->dev;
 
-	/* Startup sequence is different for s3c64xx and higher SoC's */
-	if (s3c24xx_serial_has_interrupt_mask(port))
-		s3c24xx_serial_ops.startup = s3c64xx_serial_startup;
-
 	port->uartclk = 1;
 
 	if (cfg->uart_flags & UPF_CONS_FLOW) {
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index a126a60..b68a648 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -1374,7 +1374,7 @@ static void uart_close(struct tty_struct *tty, struct file *filp)
 		state = drv->state + tty->index;
 		port = &state->port;
 		spin_lock_irq(&port->lock);
-		--port->count;
+		atomic_dec(&port->count);
 		spin_unlock_irq(&port->lock);
 		return;
 	}
@@ -1383,7 +1383,7 @@ static void uart_close(struct tty_struct *tty, struct file *filp)
 	port = &state->port;
 	pr_debug("uart_close(%d) called\n", tty->index);
 
-	if (!port->count || tty_port_close_start(port, tty, filp) == 0)
+	if (!atomic_read(&port->count) || tty_port_close_start(port, tty, filp) == 0)
 		return;
 
 	/*
@@ -1505,7 +1505,7 @@ static void uart_hangup(struct tty_struct *tty)
 		uart_flush_buffer(tty);
 		uart_shutdown(tty, state);
 		spin_lock_irqsave(&port->lock, flags);
-		port->count = 0;
+		atomic_set(&port->count, 0);
 		clear_bit(ASYNCB_NORMAL_ACTIVE, &port->flags);
 		spin_unlock_irqrestore(&port->lock, flags);
 		tty_port_tty_set(port, NULL);
@@ -1587,7 +1587,7 @@ static int uart_open(struct tty_struct *tty, struct file *filp)
 	pr_debug("uart_open(%d) called\n", line);
 
 	spin_lock_irq(&port->lock);
-	++port->count;
+	atomic_inc(&port->count);
 	spin_unlock_irq(&port->lock);
 
 	/*
diff --git a/drivers/tty/serial/uartlite.c b/drivers/tty/serial/uartlite.c
index d08baa6..4bb0007 100644
--- a/drivers/tty/serial/uartlite.c
+++ b/drivers/tty/serial/uartlite.c
@@ -345,13 +345,13 @@ static int ulite_request_port(struct uart_port *port)
 		return -EBUSY;
 	}
 
-	port->private_data = &uartlite_be;
+	port->private_data = (void *)&uartlite_be;
 	ret = uart_in32(ULITE_CONTROL, port);
 	uart_out32(ULITE_CONTROL_RST_TX, ULITE_CONTROL, port);
 	ret = uart_in32(ULITE_STATUS, port);
 	/* Endianess detection */
 	if ((ret & ULITE_STATUS_TXEMPTY) != ULITE_STATUS_TXEMPTY)
-		port->private_data = &uartlite_le;
+		port->private_data = (void *)&uartlite_le;
 
 	return 0;
 }
diff --git a/drivers/tty/synclink.c b/drivers/tty/synclink.c
index f5476e2..78f1fb9 100644
--- a/drivers/tty/synclink.c
+++ b/drivers/tty/synclink.c
@@ -3085,7 +3085,7 @@ static void mgsl_close(struct tty_struct *tty, struct file * filp)
 	
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):mgsl_close(%s) entry, count=%d\n",
-			 __FILE__,__LINE__, info->device_name, info->port.count);
+			 __FILE__,__LINE__, info->device_name, atomic_read(&info->port.count));
 
 	if (tty_port_close_start(&info->port, tty, filp) == 0)
 		goto cleanup;
@@ -3103,7 +3103,7 @@ static void mgsl_close(struct tty_struct *tty, struct file * filp)
 cleanup:			
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):mgsl_close(%s) exit, count=%d\n", __FILE__,__LINE__,
-			tty->driver->name, info->port.count);
+			tty->driver->name, atomic_read(&info->port.count));
 			
 }	/* end of mgsl_close() */
 
@@ -3202,8 +3202,8 @@ static void mgsl_hangup(struct tty_struct *tty)
 
 	mgsl_flush_buffer(tty);
 	shutdown(info);
-	
-	info->port.count = 0;	
+
+	atomic_set(&info->port.count, 0);
 	info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
 	info->port.tty = NULL;
 
@@ -3291,10 +3291,10 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
 	
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):block_til_ready before block on %s count=%d\n",
-			 __FILE__,__LINE__, tty->driver->name, port->count );
+			 __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
 
 	spin_lock_irqsave(&info->irq_spinlock, flags);
-	port->count--;
+	atomic_dec(&port->count);
 	spin_unlock_irqrestore(&info->irq_spinlock, flags);
 	port->blocked_open++;
 	
@@ -3321,7 +3321,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
 		
 		if (debug_level >= DEBUG_LEVEL_INFO)
 			printk("%s(%d):block_til_ready blocking on %s count=%d\n",
-				 __FILE__,__LINE__, tty->driver->name, port->count );
+				 __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
 				 
 		tty_unlock(tty);
 		schedule();
@@ -3333,12 +3333,12 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
 	
 	/* FIXME: Racy on hangup during close wait */
 	if (!tty_hung_up_p(filp))
-		port->count++;
+		atomic_inc(&port->count);
 	port->blocked_open--;
 	
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):block_til_ready after blocking on %s count=%d\n",
-			 __FILE__,__LINE__, tty->driver->name, port->count );
+			 __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
 			 
 	if (!retval)
 		port->flags |= ASYNC_NORMAL_ACTIVE;
@@ -3390,7 +3390,7 @@ static int mgsl_open(struct tty_struct *tty, struct file * filp)
 		
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):mgsl_open(%s), old ref count = %d\n",
-			 __FILE__,__LINE__,tty->driver->name, info->port.count);
+			 __FILE__,__LINE__,tty->driver->name, atomic_read(&info->port.count));
 
 	info->port.low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
 
@@ -3400,10 +3400,10 @@ static int mgsl_open(struct tty_struct *tty, struct file * filp)
 		spin_unlock_irqrestore(&info->netlock, flags);
 		goto cleanup;
 	}
-	info->port.count++;
+	atomic_inc(&info->port.count);
 	spin_unlock_irqrestore(&info->netlock, flags);
 
-	if (info->port.count == 1) {
+	if (atomic_read(&info->port.count) == 1) {
 		/* 1st open on this device, init hardware */
 		retval = startup(info);
 		if (retval < 0)
@@ -3427,8 +3427,8 @@ cleanup:
 	if (retval) {
 		if (tty->count == 1)
 			info->port.tty = NULL; /* tty layer will release tty struct */
-		if(info->port.count)
-			info->port.count--;
+		if (atomic_read(&info->port.count))
+			atomic_dec(&info->port.count);
 	}
 	
 	return retval;
@@ -7647,7 +7647,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
 	unsigned short new_crctype;
 
 	/* return error if TTY interface open */
-	if (info->port.count)
+	if (atomic_read(&info->port.count))
 		return -EBUSY;
 
 	switch (encoding)
@@ -7743,7 +7743,7 @@ static int hdlcdev_open(struct net_device *dev)
 
 	/* arbitrate between network and tty opens */
 	spin_lock_irqsave(&info->netlock, flags);
-	if (info->port.count != 0 || info->netcount != 0) {
+	if (atomic_read(&info->port.count) != 0 || info->netcount != 0) {
 		printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
 		spin_unlock_irqrestore(&info->netlock, flags);
 		return -EBUSY;
@@ -7829,7 +7829,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 		printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name);
 
 	/* return error if TTY interface open */
-	if (info->port.count)
+	if (atomic_read(&info->port.count))
 		return -EBUSY;
 
 	if (cmd != SIOCWANDEV)
diff --git a/drivers/tty/synclink_gt.c b/drivers/tty/synclink_gt.c
index c0a2f5a..a621130 100644
--- a/drivers/tty/synclink_gt.c
+++ b/drivers/tty/synclink_gt.c
@@ -670,7 +670,7 @@ static int open(struct tty_struct *tty, struct file *filp)
 	tty->driver_data = info;
 	info->port.tty = tty;
 
-	DBGINFO(("%s open, old ref count = %d\n", info->device_name, info->port.count));
+	DBGINFO(("%s open, old ref count = %d\n", info->device_name, atomic_read(&info->port.count)));
 
 	mutex_lock(&info->port.mutex);
 	info->port.low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
@@ -682,10 +682,10 @@ static int open(struct tty_struct *tty, struct file *filp)
 		mutex_unlock(&info->port.mutex);
 		goto cleanup;
 	}
-	info->port.count++;
+	atomic_inc(&info->port.count);
 	spin_unlock_irqrestore(&info->netlock, flags);
 
-	if (info->port.count == 1) {
+	if (atomic_read(&info->port.count) == 1) {
 		/* 1st open on this device, init hardware */
 		retval = startup(info);
 		if (retval < 0) {
@@ -706,8 +706,8 @@ cleanup:
 	if (retval) {
 		if (tty->count == 1)
 			info->port.tty = NULL; /* tty layer will release tty struct */
-		if(info->port.count)
-			info->port.count--;
+		if(atomic_read(&info->port.count))
+			atomic_dec(&info->port.count);
 	}
 
 	DBGINFO(("%s open rc=%d\n", info->device_name, retval));
@@ -720,7 +720,7 @@ static void close(struct tty_struct *tty, struct file *filp)
 
 	if (sanity_check(info, tty->name, "close"))
 		return;
-	DBGINFO(("%s close entry, count=%d\n", info->device_name, info->port.count));
+	DBGINFO(("%s close entry, count=%d\n", info->device_name, atomic_read(&info->port.count)));
 
 	if (tty_port_close_start(&info->port, tty, filp) == 0)
 		goto cleanup;
@@ -737,7 +737,7 @@ static void close(struct tty_struct *tty, struct file *filp)
 	tty_port_close_end(&info->port, tty);
 	info->port.tty = NULL;
 cleanup:
-	DBGINFO(("%s close exit, count=%d\n", tty->driver->name, info->port.count));
+	DBGINFO(("%s close exit, count=%d\n", tty->driver->name, atomic_read(&info->port.count)));
 }
 
 static void hangup(struct tty_struct *tty)
@@ -755,7 +755,7 @@ static void hangup(struct tty_struct *tty)
 	shutdown(info);
 
 	spin_lock_irqsave(&info->port.lock, flags);
-	info->port.count = 0;
+	atomic_set(&info->port.count, 0);
 	info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
 	info->port.tty = NULL;
 	spin_unlock_irqrestore(&info->port.lock, flags);
@@ -1435,7 +1435,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
 	unsigned short new_crctype;
 
 	/* return error if TTY interface open */
-	if (info->port.count)
+	if (atomic_read(&info->port.count))
 		return -EBUSY;
 
 	DBGINFO(("%s hdlcdev_attach\n", info->device_name));
@@ -1531,7 +1531,7 @@ static int hdlcdev_open(struct net_device *dev)
 
 	/* arbitrate between network and tty opens */
 	spin_lock_irqsave(&info->netlock, flags);
-	if (info->port.count != 0 || info->netcount != 0) {
+	if (atomic_read(&info->port.count) != 0 || info->netcount != 0) {
 		DBGINFO(("%s hdlc_open busy\n", dev->name));
 		spin_unlock_irqrestore(&info->netlock, flags);
 		return -EBUSY;
@@ -1616,7 +1616,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 	DBGINFO(("%s hdlcdev_ioctl\n", dev->name));
 
 	/* return error if TTY interface open */
-	if (info->port.count)
+	if (atomic_read(&info->port.count))
 		return -EBUSY;
 
 	if (cmd != SIOCWANDEV)
@@ -2403,7 +2403,7 @@ static irqreturn_t slgt_interrupt(int dummy, void *dev_id)
 		if (port == NULL)
 			continue;
 		spin_lock(&port->lock);
-		if ((port->port.count || port->netcount) &&
+		if ((atomic_read(&port->port.count) || port->netcount) &&
 		    port->pending_bh && !port->bh_running &&
 		    !port->bh_requested) {
 			DBGISR(("%s bh queued\n", port->device_name));
@@ -3289,7 +3289,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 	add_wait_queue(&port->open_wait, &wait);
 
 	spin_lock_irqsave(&info->lock, flags);
-	port->count--;
+	atomic_dec(&port->count);
 	spin_unlock_irqrestore(&info->lock, flags);
 	port->blocked_open++;
 
@@ -3324,7 +3324,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 	remove_wait_queue(&port->open_wait, &wait);
 
 	if (!tty_hung_up_p(filp))
-		port->count++;
+		atomic_inc(&port->count);
 	port->blocked_open--;
 
 	if (!retval)
diff --git a/drivers/tty/synclinkmp.c b/drivers/tty/synclinkmp.c
index 90da0c7..05a09c0 100644
--- a/drivers/tty/synclinkmp.c
+++ b/drivers/tty/synclinkmp.c
@@ -750,7 +750,7 @@ static int open(struct tty_struct *tty, struct file *filp)
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):%s open(), old ref count = %d\n",
-			 __FILE__,__LINE__,tty->driver->name, info->port.count);
+			 __FILE__,__LINE__,tty->driver->name, atomic_read(&info->port.count));
 
 	info->port.low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
 
@@ -760,10 +760,10 @@ static int open(struct tty_struct *tty, struct file *filp)
 		spin_unlock_irqrestore(&info->netlock, flags);
 		goto cleanup;
 	}
-	info->port.count++;
+	atomic_inc(&info->port.count);
 	spin_unlock_irqrestore(&info->netlock, flags);
 
-	if (info->port.count == 1) {
+	if (atomic_read(&info->port.count) == 1) {
 		/* 1st open on this device, init hardware */
 		retval = startup(info);
 		if (retval < 0)
@@ -787,8 +787,8 @@ cleanup:
 	if (retval) {
 		if (tty->count == 1)
 			info->port.tty = NULL; /* tty layer will release tty struct */
-		if(info->port.count)
-			info->port.count--;
+		if(atomic_read(&info->port.count))
+			atomic_dec(&info->port.count);
 	}
 
 	return retval;
@@ -806,7 +806,7 @@ static void close(struct tty_struct *tty, struct file *filp)
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):%s close() entry, count=%d\n",
-			 __FILE__,__LINE__, info->device_name, info->port.count);
+			 __FILE__,__LINE__, info->device_name, atomic_read(&info->port.count));
 
 	if (tty_port_close_start(&info->port, tty, filp) == 0)
 		goto cleanup;
@@ -825,7 +825,7 @@ static void close(struct tty_struct *tty, struct file *filp)
 cleanup:
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):%s close() exit, count=%d\n", __FILE__,__LINE__,
-			tty->driver->name, info->port.count);
+			tty->driver->name, atomic_read(&info->port.count));
 }
 
 /* Called by tty_hangup() when a hangup is signaled.
@@ -848,7 +848,7 @@ static void hangup(struct tty_struct *tty)
 	shutdown(info);
 
 	spin_lock_irqsave(&info->port.lock, flags);
-	info->port.count = 0;
+	atomic_set(&info->port.count, 0);
 	info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
 	info->port.tty = NULL;
 	spin_unlock_irqrestore(&info->port.lock, flags);
@@ -1551,7 +1551,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
 	unsigned short new_crctype;
 
 	/* return error if TTY interface open */
-	if (info->port.count)
+	if (atomic_read(&info->port.count))
 		return -EBUSY;
 
 	switch (encoding)
@@ -1647,7 +1647,7 @@ static int hdlcdev_open(struct net_device *dev)
 
 	/* arbitrate between network and tty opens */
 	spin_lock_irqsave(&info->netlock, flags);
-	if (info->port.count != 0 || info->netcount != 0) {
+	if (atomic_read(&info->port.count) != 0 || info->netcount != 0) {
 		printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
 		spin_unlock_irqrestore(&info->netlock, flags);
 		return -EBUSY;
@@ -1733,7 +1733,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 		printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name);
 
 	/* return error if TTY interface open */
-	if (info->port.count)
+	if (atomic_read(&info->port.count))
 		return -EBUSY;
 
 	if (cmd != SIOCWANDEV)
@@ -2610,7 +2610,7 @@ static irqreturn_t synclinkmp_interrupt(int dummy, void *dev_id)
 		 * do not request bottom half processing if the
 		 * device is not open in a normal mode.
 		 */
-		if ( port && (port->port.count || port->netcount) &&
+		if ( port && (atomic_read(&port->port.count) || port->netcount) &&
 		     port->pending_bh && !port->bh_running &&
 		     !port->bh_requested ) {
 			if ( debug_level >= DEBUG_LEVEL_ISR )
@@ -3307,10 +3307,10 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):%s block_til_ready() before block, count=%d\n",
-			 __FILE__,__LINE__, tty->driver->name, port->count );
+			 __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
 
 	spin_lock_irqsave(&info->lock, flags);
-	port->count--;
+	atomic_dec(&port->count);
 	spin_unlock_irqrestore(&info->lock, flags);
 	port->blocked_open++;
 
@@ -3337,7 +3337,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 
 		if (debug_level >= DEBUG_LEVEL_INFO)
 			printk("%s(%d):%s block_til_ready() count=%d\n",
-				 __FILE__,__LINE__, tty->driver->name, port->count );
+				 __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
 
 		tty_unlock(tty);
 		schedule();
@@ -3347,12 +3347,12 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 	set_current_state(TASK_RUNNING);
 	remove_wait_queue(&port->open_wait, &wait);
 	if (!tty_hung_up_p(filp))
-		port->count++;
+		atomic_inc(&port->count);
 	port->blocked_open--;
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):%s block_til_ready() after, count=%d\n",
-			 __FILE__,__LINE__, tty->driver->name, port->count );
+			 __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
 
 	if (!retval)
 		port->flags |= ASYNC_NORMAL_ACTIVE;
diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index e513940..fb19436 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -1089,7 +1089,7 @@ EXPORT_SYMBOL(unregister_sysrq_key);
 static ssize_t write_sysrq_trigger(struct file *file, const char __user *buf,
 				   size_t count, loff_t *ppos)
 {
-	if (count) {
+	if (count && capable(CAP_SYS_ADMIN)) {
 		char c;
 
 		if (get_user(c, buf))
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 24d5491..a74f792 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -105,6 +105,8 @@
 #include <linux/kmod.h>
 #include <linux/nsproxy.h>
 
+#include <linux/grsecurity.h>
+
 #undef TTY_DEBUG_HANGUP
 #ifdef TTY_DEBUG_HANGUP
 # define tty_debug_hangup(tty, f, args...)	tty_debug(tty, f, ##args)
@@ -2291,6 +2293,8 @@ static int tiocsti(struct tty_struct *tty, char __user *p)
 	char ch, mbz = 0;
 	struct tty_ldisc *ld;
 
+	if (gr_handle_tiocsti(tty))
+		return -EPERM;
 	if ((current->signal->tty != tty) && !capable(CAP_SYS_ADMIN))
 		return -EPERM;
 	if (get_user(ch, p))
@@ -3565,7 +3569,7 @@ EXPORT_SYMBOL(tty_devnum);
 
 void tty_default_fops(struct file_operations *fops)
 {
-	*fops = tty_fops;
+	memcpy((void *)fops, &tty_fops, sizeof(tty_fops));
 }
 
 /*
diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c
index 68947f6..1f85fef2 100644
--- a/drivers/tty/tty_ldisc.c
+++ b/drivers/tty/tty_ldisc.c
@@ -68,7 +68,7 @@ int tty_register_ldisc(int disc, struct tty_ldisc_ops *new_ldisc)
 	raw_spin_lock_irqsave(&tty_ldiscs_lock, flags);
 	tty_ldiscs[disc] = new_ldisc;
 	new_ldisc->num = disc;
-	new_ldisc->refcount = 0;
+	atomic_set(&new_ldisc->refcount, 0);
 	raw_spin_unlock_irqrestore(&tty_ldiscs_lock, flags);
 
 	return ret;
@@ -96,7 +96,7 @@ int tty_unregister_ldisc(int disc)
 		return -EINVAL;
 
 	raw_spin_lock_irqsave(&tty_ldiscs_lock, flags);
-	if (tty_ldiscs[disc]->refcount)
+	if (atomic_read(&tty_ldiscs[disc]->refcount))
 		ret = -EBUSY;
 	else
 		tty_ldiscs[disc] = NULL;
@@ -117,7 +117,7 @@ static struct tty_ldisc_ops *get_ldops(int disc)
 	if (ldops) {
 		ret = ERR_PTR(-EAGAIN);
 		if (try_module_get(ldops->owner)) {
-			ldops->refcount++;
+			atomic_inc(&ldops->refcount);
 			ret = ldops;
 		}
 	}
@@ -130,7 +130,7 @@ static void put_ldops(struct tty_ldisc_ops *ldops)
 	unsigned long flags;
 
 	raw_spin_lock_irqsave(&tty_ldiscs_lock, flags);
-	ldops->refcount--;
+	atomic_dec(&ldops->refcount);
 	module_put(ldops->owner);
 	raw_spin_unlock_irqrestore(&tty_ldiscs_lock, flags);
 }
diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c
index dbcca30..7549b6f 100644
--- a/drivers/tty/tty_port.c
+++ b/drivers/tty/tty_port.c
@@ -235,7 +235,7 @@ void tty_port_hangup(struct tty_port *port)
 	unsigned long flags;
 
 	spin_lock_irqsave(&port->lock, flags);
-	port->count = 0;
+	atomic_set(&port->count, 0);
 	port->flags &= ~ASYNC_NORMAL_ACTIVE;
 	tty = port->tty;
 	if (tty)
@@ -387,7 +387,7 @@ int tty_port_block_til_ready(struct tty_port *port,
 
 	/* The port lock protects the port counts */
 	spin_lock_irqsave(&port->lock, flags);
-	port->count--;
+	atomic_dec(&port->count);
 	port->blocked_open++;
 	spin_unlock_irqrestore(&port->lock, flags);
 
@@ -428,7 +428,7 @@ int tty_port_block_til_ready(struct tty_port *port,
 	   we must not mess that up further */
 	spin_lock_irqsave(&port->lock, flags);
 	if (!tty_hung_up_p(filp))
-		port->count++;
+		atomic_inc(&port->count);
 	port->blocked_open--;
 	if (retval == 0)
 		port->flags |= ASYNC_NORMAL_ACTIVE;
@@ -461,18 +461,18 @@ int tty_port_close_start(struct tty_port *port,
 		return 0;
 
 	spin_lock_irqsave(&port->lock, flags);
-	if (tty->count == 1 && port->count != 1) {
+	if (tty->count == 1 && atomic_read(&port->count) != 1) {
 		tty_warn(tty, "%s: tty->count = 1 port count = %d\n", __func__,
-			 port->count);
-		port->count = 1;
+			 atomic_read(&port->count));
+		atomic_set(&port->count, 1);
 	}
-	if (--port->count < 0) {
+	if (atomic_dec_return(&port->count) < 0) {
 		tty_warn(tty, "%s: bad port count (%d)\n", __func__,
-			 port->count);
-		port->count = 0;
+			 atomic_read(&port->count));
+		atomic_set(&port->count, 0);
 	}
 
-	if (port->count) {
+	if (atomic_read(&port->count)) {
 		spin_unlock_irqrestore(&port->lock, flags);
 		return 0;
 	}
@@ -566,7 +566,7 @@ int tty_port_open(struct tty_port *port, struct tty_struct *tty,
 							struct file *filp)
 {
 	spin_lock_irq(&port->lock);
-	++port->count;
+	atomic_inc(&port->count);
 	spin_unlock_irq(&port->lock);
 	tty_port_tty_set(port, tty);
 
diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
index f973bfc..cc47958 100644
--- a/drivers/tty/vt/keyboard.c
+++ b/drivers/tty/vt/keyboard.c
@@ -642,6 +642,16 @@ static void k_spec(struct vc_data *vc, unsigned char value, char up_flag)
 	     kbd->kbdmode == VC_OFF) &&
 	     value != KVAL(K_SAK))
 		return;		/* SAK is allowed even in raw mode */
+
+#if defined(CONFIG_GRKERNSEC_PROC) || defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
+	{
+		void *func = fn_handler[value];
+		if (func == fn_show_state || func == fn_show_ptregs ||
+		    func == fn_show_mem)
+			return;
+	}
+#endif
+
 	fn_handler[value](vc);
 }
 
@@ -1876,9 +1886,6 @@ int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm,
 	if (copy_from_user(&tmp, user_kbe, sizeof(struct kbentry)))
 		return -EFAULT;
 
-	if (!capable(CAP_SYS_TTY_CONFIG))
-		perm = 0;
-
 	switch (cmd) {
 	case KDGKBENT:
 		/* Ensure another thread doesn't free it under us */
@@ -1893,6 +1900,9 @@ int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm,
 		spin_unlock_irqrestore(&kbd_event_lock, flags);
 		return put_user(val, &user_kbe->kb_value);
 	case KDSKBENT:
+		if (!capable(CAP_SYS_TTY_CONFIG))
+			perm = 0;
+
 		if (!perm)
 			return -EPERM;
 		if (!i && v == K_NOSUCHMAP) {
@@ -1983,9 +1993,6 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm)
 	int i, j, k;
 	int ret;
 
-	if (!capable(CAP_SYS_TTY_CONFIG))
-		perm = 0;
-
 	kbs = kmalloc(sizeof(*kbs), GFP_KERNEL);
 	if (!kbs) {
 		ret = -ENOMEM;
@@ -2019,6 +2026,9 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm)
 		kfree(kbs);
 		return ((p && *p) ? -EOVERFLOW : 0);
 	case KDSKBSENT:
+		if (!capable(CAP_SYS_TTY_CONFIG))
+			perm = 0;
+
 		if (!perm) {
 			ret = -EPERM;
 			goto reterr;
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index bcc1fc0..0d989a9 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -25,6 +25,7 @@
 #include <linux/kobject.h>
 #include <linux/cdev.h>
 #include <linux/uio_driver.h>
+#include <asm/local.h>
 
 #define UIO_MAX_DEVICES		(1U << MINORBITS)
 
@@ -231,7 +232,7 @@ static ssize_t event_show(struct device *dev,
 			  struct device_attribute *attr, char *buf)
 {
 	struct uio_device *idev = dev_get_drvdata(dev);
-	return sprintf(buf, "%u\n", (unsigned int)atomic_read(&idev->event));
+	return sprintf(buf, "%u\n", (unsigned int)atomic_read_unchecked(&idev->event));
 }
 static DEVICE_ATTR_RO(event);
 
@@ -393,7 +394,7 @@ void uio_event_notify(struct uio_info *info)
 {
 	struct uio_device *idev = info->uio_dev;
 
-	atomic_inc(&idev->event);
+	atomic_inc_unchecked(&idev->event);
 	wake_up_interruptible(&idev->wait);
 	kill_fasync(&idev->async_queue, SIGIO, POLL_IN);
 }
@@ -446,7 +447,7 @@ static int uio_open(struct inode *inode, struct file *filep)
 	}
 
 	listener->dev = idev;
-	listener->event_count = atomic_read(&idev->event);
+	listener->event_count = atomic_read_unchecked(&idev->event);
 	filep->private_data = listener;
 
 	if (idev->info->open) {
@@ -497,7 +498,7 @@ static unsigned int uio_poll(struct file *filep, poll_table *wait)
 		return -EIO;
 
 	poll_wait(filep, &idev->wait, wait);
-	if (listener->event_count != atomic_read(&idev->event))
+	if (listener->event_count != atomic_read_unchecked(&idev->event))
 		return POLLIN | POLLRDNORM;
 	return 0;
 }
@@ -522,7 +523,7 @@ static ssize_t uio_read(struct file *filep, char __user *buf,
 	do {
 		set_current_state(TASK_INTERRUPTIBLE);
 
-		event_count = atomic_read(&idev->event);
+		event_count = atomic_read_unchecked(&idev->event);
 		if (event_count != listener->event_count) {
 			__set_current_state(TASK_RUNNING);
 			if (copy_to_user(buf, &event_count, count))
@@ -580,9 +581,13 @@ static ssize_t uio_write(struct file *filep, const char __user *buf,
 static int uio_find_mem_index(struct vm_area_struct *vma)
 {
 	struct uio_device *idev = vma->vm_private_data;
+	unsigned long size;
 
 	if (vma->vm_pgoff < MAX_UIO_MAPS) {
-		if (idev->info->mem[vma->vm_pgoff].size == 0)
+		size = idev->info->mem[vma->vm_pgoff].size;
+		if (size == 0)
+			return -1;
+		if (vma->vm_end - vma->vm_start > size)
 			return -1;
 		return (int)vma->vm_pgoff;
 	}
@@ -814,7 +819,7 @@ int __uio_register_device(struct module *owner,
 	idev->owner = owner;
 	idev->info = info;
 	init_waitqueue_head(&idev->wait);
-	atomic_set(&idev->event, 0);
+	atomic_set_unchecked(&idev->event, 0);
 
 	ret = uio_get_minor(idev);
 	if (ret)
diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c
index 0a866e9..e0c35aa 100644
--- a/drivers/usb/atm/cxacru.c
+++ b/drivers/usb/atm/cxacru.c
@@ -474,7 +474,7 @@ static ssize_t cxacru_sysfs_store_adsl_config(struct device *dev,
 		ret = sscanf(buf + pos, "%x=%x%n", &index, &value, &tmp);
 		if (ret < 2)
 			return -EINVAL;
-		if (index < 0 || index > 0x7f)
+		if (index > 0x7f)
 			return -EINVAL;
 		if (tmp < 0 || tmp > len - pos)
 			return -EINVAL;
diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c
index db322d9..f0f4bc1 100644
--- a/drivers/usb/atm/usbatm.c
+++ b/drivers/usb/atm/usbatm.c
@@ -331,7 +331,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
 		if (printk_ratelimit())
 			atm_warn(instance, "%s: OAM not supported (vpi %d, vci %d)!\n",
 				__func__, vpi, vci);
-		atomic_inc(&vcc->stats->rx_err);
+		atomic_inc_unchecked(&vcc->stats->rx_err);
 		return;
 	}
 
@@ -358,7 +358,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
 		if (length > ATM_MAX_AAL5_PDU) {
 			atm_rldbg(instance, "%s: bogus length %u (vcc: 0x%p)!\n",
 				  __func__, length, vcc);
-			atomic_inc(&vcc->stats->rx_err);
+			atomic_inc_unchecked(&vcc->stats->rx_err);
 			goto out;
 		}
 
@@ -367,14 +367,14 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
 		if (sarb->len < pdu_length) {
 			atm_rldbg(instance, "%s: bogus pdu_length %u (sarb->len: %u, vcc: 0x%p)!\n",
 				  __func__, pdu_length, sarb->len, vcc);
-			atomic_inc(&vcc->stats->rx_err);
+			atomic_inc_unchecked(&vcc->stats->rx_err);
 			goto out;
 		}
 
 		if (crc32_be(~0, skb_tail_pointer(sarb) - pdu_length, pdu_length) != 0xc704dd7b) {
 			atm_rldbg(instance, "%s: packet failed crc check (vcc: 0x%p)!\n",
 				  __func__, vcc);
-			atomic_inc(&vcc->stats->rx_err);
+			atomic_inc_unchecked(&vcc->stats->rx_err);
 			goto out;
 		}
 
@@ -387,7 +387,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
 			if (printk_ratelimit())
 				atm_err(instance, "%s: no memory for skb (length: %u)!\n",
 					__func__, length);
-			atomic_inc(&vcc->stats->rx_drop);
+			atomic_inc_unchecked(&vcc->stats->rx_drop);
 			goto out;
 		}
 
@@ -415,7 +415,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
 
 		vcc->push(vcc, skb);
 
-		atomic_inc(&vcc->stats->rx);
+		atomic_inc_unchecked(&vcc->stats->rx);
 	out:
 		skb_trim(sarb, 0);
 	}
@@ -613,7 +613,7 @@ static void usbatm_tx_process(unsigned long data)
 			struct atm_vcc *vcc = UDSL_SKB(skb)->atm.vcc;
 
 			usbatm_pop(vcc, skb);
-			atomic_inc(&vcc->stats->tx);
+			atomic_inc_unchecked(&vcc->stats->tx);
 
 			skb = skb_dequeue(&instance->sndqueue);
 		}
@@ -757,11 +757,11 @@ static int usbatm_atm_proc_read(struct atm_dev *atm_dev, loff_t *pos, char *page
 	if (!left--)
 		return sprintf(page,
 			       "AAL5: tx %d ( %d err ), rx %d ( %d err, %d drop )\n",
-			       atomic_read(&atm_dev->stats.aal5.tx),
-			       atomic_read(&atm_dev->stats.aal5.tx_err),
-			       atomic_read(&atm_dev->stats.aal5.rx),
-			       atomic_read(&atm_dev->stats.aal5.rx_err),
-			       atomic_read(&atm_dev->stats.aal5.rx_drop));
+			       atomic_read_unchecked(&atm_dev->stats.aal5.tx),
+			       atomic_read_unchecked(&atm_dev->stats.aal5.tx_err),
+			       atomic_read_unchecked(&atm_dev->stats.aal5.rx),
+			       atomic_read_unchecked(&atm_dev->stats.aal5.rx_err),
+			       atomic_read_unchecked(&atm_dev->stats.aal5.rx_drop));
 
 	if (!left--) {
 		if (instance->disconnected)
diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h
index 05ce308..702aded 100644
--- a/drivers/usb/class/cdc-acm.h
+++ b/drivers/usb/class/cdc-acm.h
@@ -96,7 +96,7 @@ struct acm {
 	struct acm_rb read_buffers[ACM_NR];
 	struct acm_wb *putbuffer;			/* for acm_tty_put_char() */
 	int rx_buflimit;
-	int rx_endpoint;
+	unsigned int rx_endpoint;
 	spinlock_t read_lock;
 	int write_used;					/* number of non-empty write buffers */
 	int transmitting;
diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c
index ef04b50..7582d99 100644
--- a/drivers/usb/core/devices.c
+++ b/drivers/usb/core/devices.c
@@ -119,7 +119,7 @@ static const char format_endpt[] =
  * time it gets called.
  */
 static struct device_connect_event {
-	atomic_t count;
+	atomic_unchecked_t count;
 	wait_queue_head_t wait;
 } device_event = {
 	.count = ATOMIC_INIT(1),
@@ -157,7 +157,7 @@ static const struct class_info clas_info[] = {
 
 void usbfs_conn_disc_event(void)
 {
-	atomic_add(2, &device_event.count);
+	atomic_add_unchecked(2, &device_event.count);
 	wake_up(&device_event.wait);
 }
 
@@ -648,7 +648,7 @@ static unsigned int usb_device_poll(struct file *file,
 
 	poll_wait(file, &device_event.wait, wait);
 
-	event_count = atomic_read(&device_event.count);
+	event_count = atomic_read_unchecked(&device_event.count);
 	if (file->f_version != event_count) {
 		file->f_version = event_count;
 		return POLLIN | POLLRDNORM;
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 52c4461..adf74f5 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -289,7 +289,7 @@ static ssize_t usbdev_read(struct file *file, char __user *buf, size_t nbytes,
 	struct usb_dev_state *ps = file->private_data;
 	struct usb_device *dev = ps->dev;
 	ssize_t ret = 0;
-	unsigned len;
+	size_t len;
 	loff_t pos;
 	int i;
 
@@ -331,22 +331,22 @@ static ssize_t usbdev_read(struct file *file, char __user *buf, size_t nbytes,
 	for (i = 0; nbytes && i < dev->descriptor.bNumConfigurations; i++) {
 		struct usb_config_descriptor *config =
 			(struct usb_config_descriptor *)dev->rawdescriptors[i];
-		unsigned int length = le16_to_cpu(config->wTotalLength);
+		size_t length = le16_to_cpu(config->wTotalLength);
 
 		if (*ppos < pos + length) {
 
 			/* The descriptor may claim to be longer than it
 			 * really is.  Here is the actual allocated length. */
-			unsigned alloclen =
+			size_t alloclen =
 				le16_to_cpu(dev->config[i].desc.wTotalLength);
 
-			len = length - (*ppos - pos);
+			len = length + pos - *ppos;
 			if (len > nbytes)
 				len = nbytes;
 
 			/* Simply don't write (skip over) unallocated parts */
 			if (alloclen > (*ppos - pos)) {
-				alloclen -= (*ppos - pos);
+				alloclen = alloclen + pos - *ppos;
 				if (copy_to_user(buf,
 				    dev->rawdescriptors[i] + (*ppos - pos),
 				    min(len, alloclen))) {
@@ -1316,10 +1316,11 @@ static int proc_getdriver(struct usb_dev_state *ps, void __user *arg)
 
 static int proc_connectinfo(struct usb_dev_state *ps, void __user *arg)
 {
-	struct usbdevfs_connectinfo ci = {
-		.devnum = ps->dev->devnum,
-		.slow = ps->dev->speed == USB_SPEED_LOW
-	};
+	struct usbdevfs_connectinfo ci;
+
+	memset(&ci, 0, sizeof(ci));
+	ci.devnum = ps->dev->devnum;
+	ci.slow = ps->dev->speed == USB_SPEED_LOW;
 
 	if (copy_to_user(arg, &ci, sizeof(ci)))
 		return -EFAULT;
@@ -1680,7 +1681,7 @@ static int proc_do_submiturb(struct usb_dev_state *ps, struct usbdevfs_urb *uurb
 		}
 	}
 	as->urb->dev = ps->dev;
-	as->urb->pipe = (uurb->type << 30) |
+	as->urb->pipe = ((unsigned int)uurb->type << 30) |
 			__create_pipe(ps->dev, uurb->endpoint & 0xf) |
 			(uurb->endpoint & USB_DIR_IN);
 
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 980fc57..e36e99a 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -1629,7 +1629,7 @@ int usb_hcd_submit_urb (struct urb *urb, gfp_t mem_flags)
 	 */
 	usb_get_urb(urb);
 	atomic_inc(&urb->use_count);
-	atomic_inc(&urb->dev->urbnum);
+	atomic_inc_unchecked(&urb->dev->urbnum);
 	usbmon_urb_submit(&hcd->self, urb);
 
 	/* NOTE requirements on root-hub callers (usbfs and the hub
@@ -1656,7 +1656,7 @@ int usb_hcd_submit_urb (struct urb *urb, gfp_t mem_flags)
 		urb->hcpriv = NULL;
 		INIT_LIST_HEAD(&urb->urb_list);
 		atomic_dec(&urb->use_count);
-		atomic_dec(&urb->dev->urbnum);
+		atomic_dec_unchecked(&urb->dev->urbnum);
 		if (atomic_read(&urb->reject))
 			wake_up(&usb_kill_urb_queue);
 		usb_put_urb(urb);
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 1ab42bf..0b2f334 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -26,6 +26,7 @@
 #include <linux/mutex.h>
 #include <linux/random.h>
 #include <linux/pm_qos.h>
+#include <linux/grsecurity.h>
 
 #include <asm/uaccess.h>
 #include <asm/byteorder.h>
@@ -4788,6 +4789,10 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
 			goto done;
 		return;
 	}
+
+	if (gr_handle_new_usb())
+		goto done;
+
 	if (hub_is_superspeed(hub->hdev))
 		unit_load = 150;
 	else
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
index c953a0f..54c64f4 100644
--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -259,7 +259,7 @@ static ssize_t urbnum_show(struct device *dev, struct device_attribute *attr,
 	struct usb_device *udev;
 
 	udev = to_usb_device(dev);
-	return sprintf(buf, "%d\n", atomic_read(&udev->urbnum));
+	return sprintf(buf, "%d\n", atomic_read_unchecked(&udev->urbnum));
 }
 static DEVICE_ATTR_RO(urbnum);
 
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index 479187c3..55625b2a 100644
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -444,7 +444,7 @@ struct usb_device *usb_alloc_dev(struct usb_device *parent,
 	set_dev_node(&dev->dev, dev_to_node(bus->controller));
 	dev->state = USB_STATE_ATTACHED;
 	dev->lpm_disable_count = 1;
-	atomic_set(&dev->urbnum, 0);
+	atomic_set_unchecked(&dev->urbnum, 0);
 
 	INIT_LIST_HEAD(&dev->ep0.urb_list);
 	dev->ep0.desc.bLength = USB_DT_ENDPOINT_SIZE;
diff --git a/drivers/usb/early/ehci-dbgp.c b/drivers/usb/early/ehci-dbgp.c
index 8cfc319..4868255 100644
--- a/drivers/usb/early/ehci-dbgp.c
+++ b/drivers/usb/early/ehci-dbgp.c
@@ -98,7 +98,8 @@ static inline u32 dbgp_len_update(u32 x, u32 len)
 
 #ifdef CONFIG_KGDB
 static struct kgdb_io kgdbdbgp_io_ops;
-#define dbgp_kgdb_mode (dbg_io_ops == &kgdbdbgp_io_ops)
+static struct kgdb_io kgdbdbgp_io_ops_console;
+#define dbgp_kgdb_mode (dbg_io_ops == &kgdbdbgp_io_ops || dbg_io_ops == &kgdbdbgp_io_ops_console)
 #else
 #define dbgp_kgdb_mode (0)
 #endif
@@ -1043,6 +1044,13 @@ static struct kgdb_io kgdbdbgp_io_ops = {
 	.write_char = kgdbdbgp_write_char,
 };
 
+static struct kgdb_io kgdbdbgp_io_ops_console = {
+	.name = "kgdbdbgp",
+	.read_char = kgdbdbgp_read_char,
+	.write_char = kgdbdbgp_write_char,
+	.is_console = 1
+};
+
 static int kgdbdbgp_wait_time;
 
 static int __init kgdbdbgp_parse_config(char *str)
@@ -1058,8 +1066,10 @@ static int __init kgdbdbgp_parse_config(char *str)
 		ptr++;
 		kgdbdbgp_wait_time = simple_strtoul(ptr, &ptr, 10);
 	}
-	kgdb_register_io_module(&kgdbdbgp_io_ops);
-	kgdbdbgp_io_ops.is_console = early_dbgp_console.index != -1;
+	if (early_dbgp_console.index != -1)
+		kgdb_register_io_module(&kgdbdbgp_io_ops_console);
+	else
+		kgdb_register_io_module(&kgdbdbgp_io_ops);
 
 	return 0;
 }
diff --git a/drivers/usb/gadget/function/f_phonet.c b/drivers/usb/gadget/function/f_phonet.c
index 0473d61..5e9caa5 100644
--- a/drivers/usb/gadget/function/f_phonet.c
+++ b/drivers/usb/gadget/function/f_phonet.c
@@ -223,7 +223,7 @@ static void pn_tx_complete(struct usb_ep *ep, struct usb_request *req)
 	netif_wake_queue(dev);
 }
 
-static int pn_net_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t pn_net_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct phonet_port *port = netdev_priv(dev);
 	struct f_phonet *fp;
diff --git a/drivers/usb/gadget/function/f_uac1.c b/drivers/usb/gadget/function/f_uac1.c
index f2ac0cb..4038262 100644
--- a/drivers/usb/gadget/function/f_uac1.c
+++ b/drivers/usb/gadget/function/f_uac1.c
@@ -14,6 +14,7 @@
 #include <linux/module.h>
 #include <linux/device.h>
 #include <linux/atomic.h>
+#include <linux/module.h>
 
 #include "u_uac1.h"
 
diff --git a/drivers/usb/gadget/function/u_serial.c b/drivers/usb/gadget/function/u_serial.c
index 6af145f..17d4bf2 100644
--- a/drivers/usb/gadget/function/u_serial.c
+++ b/drivers/usb/gadget/function/u_serial.c
@@ -747,9 +747,9 @@ static int gs_open(struct tty_struct *tty, struct file *file)
 			spin_lock_irq(&port->port_lock);
 
 			/* already open?  Great. */
-			if (port->port.count) {
+			if (atomic_read(&port->port.count)) {
 				status = 0;
-				port->port.count++;
+				atomic_inc(&port->port.count);
 
 			/* currently opening/closing? wait ... */
 			} else if (port->openclose) {
@@ -808,7 +808,7 @@ static int gs_open(struct tty_struct *tty, struct file *file)
 	tty->driver_data = port;
 	port->port.tty = tty;
 
-	port->port.count = 1;
+	atomic_set(&port->port.count, 1);
 	port->openclose = false;
 
 	/* if connected, start the I/O stream */
@@ -850,11 +850,11 @@ static void gs_close(struct tty_struct *tty, struct file *file)
 
 	spin_lock_irq(&port->port_lock);
 
-	if (port->port.count != 1) {
-		if (port->port.count == 0)
+	if (atomic_read(&port->port.count) != 1) {
+		if (atomic_read(&port->port.count) == 0)
 			WARN_ON(1);
 		else
-			--port->port.count;
+			atomic_dec(&port->port.count);
 		goto exit;
 	}
 
@@ -864,7 +864,7 @@ static void gs_close(struct tty_struct *tty, struct file *file)
 	 * and sleep if necessary
 	 */
 	port->openclose = true;
-	port->port.count = 0;
+	atomic_set(&port->port.count, 0);
 
 	gser = port->port_usb;
 	if (gser && gser->disconnect)
@@ -1320,7 +1320,7 @@ static int gs_closed(struct gs_port *port)
 	int cond;
 
 	spin_lock_irq(&port->port_lock);
-	cond = (port->port.count == 0) && !port->openclose;
+	cond = (atomic_read(&port->port.count) == 0) && !port->openclose;
 	spin_unlock_irq(&port->port_lock);
 	return cond;
 }
@@ -1465,7 +1465,7 @@ int gserial_connect(struct gserial *gser, u8 port_num)
 	/* if it's already open, start I/O ... and notify the serial
 	 * protocol about open/close status (connect/disconnect).
 	 */
-	if (port->port.count) {
+	if (atomic_read(&port->port.count)) {
 		pr_debug("gserial_connect: start ttyGS%d\n", port->port_num);
 		gs_start_io(port);
 		if (gser->connect)
@@ -1512,7 +1512,7 @@ void gserial_disconnect(struct gserial *gser)
 
 	port->port_usb = NULL;
 	gser->ioport = NULL;
-	if (port->port.count > 0 || port->openclose) {
+	if (atomic_read(&port->port.count) > 0 || port->openclose) {
 		wake_up_interruptible(&port->drain_wait);
 		if (port->port.tty)
 			tty_hangup(port->port.tty);
@@ -1525,7 +1525,7 @@ void gserial_disconnect(struct gserial *gser)
 
 	/* finally, free any unused/unusable I/O buffers */
 	spin_lock_irqsave(&port->port_lock, flags);
-	if (port->port.count == 0 && !port->openclose)
+	if (atomic_read(&port->port.count) == 0 && !port->openclose)
 		gs_buf_free(&port->port_write_buf);
 	gs_free_requests(gser->out, &port->read_pool, NULL);
 	gs_free_requests(gser->out, &port->read_queue, NULL);
diff --git a/drivers/usb/gadget/function/u_uac1.c b/drivers/usb/gadget/function/u_uac1.c
index c78c841..48fd281 100644
--- a/drivers/usb/gadget/function/u_uac1.c
+++ b/drivers/usb/gadget/function/u_uac1.c
@@ -17,6 +17,7 @@
 #include <linux/ctype.h>
 #include <linux/random.h>
 #include <linux/syscalls.h>
+#include <linux/module.h>
 
 #include "u_uac1.h"
 
diff --git a/drivers/usb/gadget/udc/dummy_hcd.c b/drivers/usb/gadget/udc/dummy_hcd.c
index dde4445..f51cd5a 100644
--- a/drivers/usb/gadget/udc/dummy_hcd.c
+++ b/drivers/usb/gadget/udc/dummy_hcd.c
@@ -2463,7 +2463,7 @@ static int dummy_setup(struct usb_hcd *hcd)
 	struct dummy *dum;
 
 	dum = *((void **)dev_get_platdata(hcd->self.controller));
-	hcd->self.sg_tablesize = ~0;
+	hcd->self.sg_tablesize = SG_ALL;
 	if (usb_hcd_is_primary_hcd(hcd)) {
 		dum->hs_hcd = hcd_to_dummy_hcd(hcd);
 		dum->hs_hcd->dum = dum;
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index ae1b6e6..2aa775a 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -564,7 +564,7 @@ static int ehci_init(struct usb_hcd *hcd)
 
 	/* Accept arbitrarily long scatter-gather lists */
 	if (!(hcd->driver->flags & HCD_LOCAL_MEM))
-		hcd->self.sg_tablesize = ~0;
+		hcd->self.sg_tablesize = SG_ALL;
 
 	/* Prepare for unlinking active QHs */
 	ehci->old_current = ~0;
diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
index ffc9029..46f0741 100644
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -777,7 +777,7 @@ static struct urb *request_single_step_set_feature_urb(
 	urb->transfer_flags = URB_DIR_IN;
 	usb_get_urb(urb);
 	atomic_inc(&urb->use_count);
-	atomic_inc(&urb->dev->urbnum);
+	atomic_inc_unchecked(&urb->dev->urbnum);
 	urb->setup_dma = dma_map_single(
 			hcd->self.controller,
 			urb->setup_packet,
@@ -844,7 +844,7 @@ static int ehset_single_step_set_feature(struct usb_hcd *hcd, int port)
 	urb->status = -EINPROGRESS;
 	usb_get_urb(urb);
 	atomic_inc(&urb->use_count);
-	atomic_inc(&urb->dev->urbnum);
+	atomic_inc_unchecked(&urb->dev->urbnum);
 	retval = submit_single_step_set_feature(hcd, urb, 0);
 	if (!retval && !wait_for_completion_timeout(&done,
 						msecs_to_jiffies(2000))) {
diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c
index eca3710..eca7127 100644
--- a/drivers/usb/host/ehci-q.c
+++ b/drivers/usb/host/ehci-q.c
@@ -44,9 +44,9 @@
 
 static int
 qtd_fill(struct ehci_hcd *ehci, struct ehci_qtd *qtd, dma_addr_t buf,
-		  size_t len, int token, int maxpacket)
+		  size_t len, u32 token, int maxpacket)
 {
-	int	i, count;
+	u32	i, count;
 	u64	addr = buf;
 
 	/* one buffer entry per 4K ... first might be short or unaligned */
diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c
index 360a5e9..ff82e6c 100644
--- a/drivers/usb/host/fotg210-hcd.c
+++ b/drivers/usb/host/fotg210-hcd.c
@@ -5031,7 +5031,7 @@ static int hcd_fotg210_init(struct usb_hcd *hcd)
 
 	/* Accept arbitrarily long scatter-gather lists */
 	if (!(hcd->driver->flags & HCD_LOCAL_MEM))
-		hcd->self.sg_tablesize = ~0;
+		hcd->self.sg_tablesize = SG_ALL;
 	return 0;
 }
 
diff --git a/drivers/usb/host/hwa-hc.c b/drivers/usb/host/hwa-hc.c
index 1db0626..2e9f5ea 100644
--- a/drivers/usb/host/hwa-hc.c
+++ b/drivers/usb/host/hwa-hc.c
@@ -337,7 +337,10 @@ static int __hwahc_op_bwa_set(struct wusbhc *wusbhc, s8 stream_index,
 	struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc);
 	struct wahc *wa = &hwahc->wa;
 	struct device *dev = &wa->usb_iface->dev;
-	u8 mas_le[UWB_NUM_MAS/8];
+	u8 *mas_le = kmalloc(UWB_NUM_MAS/8, GFP_KERNEL);
+
+	if (mas_le == NULL)
+		return -ENOMEM;
 
 	/* Set the stream index */
 	result = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0),
@@ -356,10 +359,12 @@ static int __hwahc_op_bwa_set(struct wusbhc *wusbhc, s8 stream_index,
 			WUSB_REQ_SET_WUSB_MAS,
 			USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
 			0, wa->usb_iface->cur_altsetting->desc.bInterfaceNumber,
-			mas_le, 32, USB_CTRL_SET_TIMEOUT);
+			mas_le, UWB_NUM_MAS/8, USB_CTRL_SET_TIMEOUT);
 	if (result < 0)
 		dev_err(dev, "Cannot set WUSB MAS allocation: %d\n", result);
 out:
+	kfree(mas_le);
+
 	return result;
 }
 
@@ -812,7 +817,7 @@ static int hwahc_probe(struct usb_interface *usb_iface,
 		goto error_alloc;
 	}
 	usb_hcd->wireless = 1;
-	usb_hcd->self.sg_tablesize = ~0;
+	usb_hcd->self.sg_tablesize = SG_ALL;
 	wusbhc = usb_hcd_to_wusbhc(usb_hcd);
 	hwahc = container_of(wusbhc, struct hwahc, wusbhc);
 	hwahc_init(hwahc);
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 04dcedf..de1615b 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -444,7 +444,7 @@ static int ohci_init (struct ohci_hcd *ohci)
 	struct usb_hcd *hcd = ohci_to_hcd(ohci);
 
 	/* Accept arbitrarily long scatter-gather lists */
-	hcd->self.sg_tablesize = ~0;
+	hcd->self.sg_tablesize = SG_ALL;
 
 	if (distrust_firmware)
 		ohci->flags |= OHCI_QUIRK_HUB_POWER;
diff --git a/drivers/usb/host/r8a66597.h b/drivers/usb/host/r8a66597.h
index 672cea3..31a730db 100644
--- a/drivers/usb/host/r8a66597.h
+++ b/drivers/usb/host/r8a66597.h
@@ -125,7 +125,7 @@ struct r8a66597 {
 	unsigned short interval_map;
 	unsigned char pipe_cnt[R8A66597_MAX_NUM_PIPE];
 	unsigned char dma_map;
-	unsigned int max_root_hub;
+	unsigned char max_root_hub;
 
 	struct list_head child_device;
 	unsigned long child_connect_map[4];
diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c
index a7de8e8..e1ef134 100644
--- a/drivers/usb/host/uhci-hcd.c
+++ b/drivers/usb/host/uhci-hcd.c
@@ -570,7 +570,7 @@ static int uhci_start(struct usb_hcd *hcd)
 	hcd->uses_new_polling = 1;
 	/* Accept arbitrarily long scatter-gather lists */
 	if (!(hcd->driver->flags & HCD_LOCAL_MEM))
-		hcd->self.sg_tablesize = ~0;
+		hcd->self.sg_tablesize = SG_ALL;
 
 	spin_lock_init(&uhci->lock);
 	setup_timer(&uhci->fsbr_timer, uhci_fsbr_timeout,
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 48672fa..9245081 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -32,7 +32,7 @@
 #define SSIC_PORT_CFG2		0x880c
 #define SSIC_PORT_CFG2_OFFSET	0x30
 #define PROG_DONE		(1 << 30)
-#define SSIC_PORT_UNUSED	(1 << 31)
+#define SSIC_PORT_UNUSED	(1U << 31)
 
 /* Device for a quirk */
 #define PCI_VENDOR_ID_FRESCO_LOGIC	0x1b73
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 99b4ff4..83b36b4 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1861,9 +1861,9 @@ td_cleanup:
 	 * unsigned).  Play it safe and say we didn't transfer anything.
 	 */
 	if (urb->actual_length > urb->transfer_buffer_length) {
-		xhci_warn(xhci, "URB transfer length is wrong, xHC issue? req. len = %u, act. len = %u\n",
+		xhci_warn(xhci, "URB transfer length is wrong, xHC issue? req. len = %u, trans. len = %u\n",
 			urb->transfer_buffer_length,
-			urb->actual_length);
+			EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)));
 		urb->actual_length = 0;
 		if (td->urb->transfer_flags & URB_SHORT_NOT_OK)
 			*status = -EREMOTEIO;
@@ -1942,10 +1942,15 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_td *td,
 		return finish_td(xhci, td, event_trb, event, ep, status, false);
 	case COMP_STOP:
 		/* Did we stop at data stage? */
-		if (event_trb != ep_ring->dequeue && event_trb != td->last_trb)
-			td->urb->actual_length =
-				td->urb->transfer_buffer_length -
-				EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
+		if (event_trb != ep_ring->dequeue && event_trb != td->last_trb) {
+			if (td->urb->transfer_buffer_length >= EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)))
+				td->urb->actual_length =
+					td->urb->transfer_buffer_length -
+					EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
+			else
+				td->urb->actual_length =
+					td->urb->transfer_buffer_length + 1;
+		}
 		/* fall through */
 	case COMP_STOP_INVAL:
 		return finish_td(xhci, td, event_trb, event, ep, status, false);
@@ -1959,12 +1964,15 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_td *td,
 		/* else fall through */
 	case COMP_STALL:
 		/* Did we transfer part of the data (middle) phase? */
-		if (event_trb != ep_ring->dequeue &&
-				event_trb != td->last_trb)
-			td->urb->actual_length =
-				td->urb->transfer_buffer_length -
-				EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
-		else if (!td->urb_length_set)
+		if (event_trb != ep_ring->dequeue && event_trb != td->last_trb) {
+			if (td->urb->transfer_buffer_length >= EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)))
+				td->urb->actual_length =
+					td->urb->transfer_buffer_length -
+					EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
+			else
+				td->urb->actual_length =
+					td->urb->transfer_buffer_length + 1;
+		} else if (!td->urb_length_set)
 			td->urb->actual_length = 0;
 
 		return finish_td(xhci, td, event_trb, event, ep, status, false);
@@ -1997,9 +2005,12 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_td *td,
 			 * the last TRB.
 			 */
 			td->urb_length_set = true;
-			td->urb->actual_length =
-				td->urb->transfer_buffer_length -
-				EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
+			if (td->urb->transfer_buffer_length >= EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)))
+				td->urb->actual_length =
+					td->urb->transfer_buffer_length -
+					EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
+			else
+				BUG();
 			xhci_dbg(xhci, "Waiting for status "
 					"stage event\n");
 			return 0;
@@ -2194,11 +2205,7 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_td *td,
 	/* Fast path - was this the last TRB in the TD for this URB? */
 	} else if (event_trb == td->last_trb) {
 		if (EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)) != 0) {
-			td->urb->actual_length =
-				td->urb->transfer_buffer_length -
-				EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
-			if (td->urb->transfer_buffer_length <
-					td->urb->actual_length) {
+			if (td->urb->transfer_buffer_length < EVENT_TRB_LEN(le32_to_cpu(event->transfer_len))) {
 				xhci_warn(xhci, "HC gave bad length "
 						"of %d bytes left\n",
 					  EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)));
@@ -2207,7 +2214,10 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_td *td,
 					*status = -EREMOTEIO;
 				else
 					*status = 0;
-			}
+			} else
+				td->urb->actual_length =
+					td->urb->transfer_buffer_length -
+					EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
 			/* Don't overwrite a previously set error code */
 			if (*status == -EINPROGRESS) {
 				if (td->urb->transfer_flags & URB_SHORT_NOT_OK)
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 9e71c96..f9b2333 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -4875,7 +4875,7 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks)
 	int			retval;
 
 	/* Accept arbitrarily long scatter-gather lists */
-	hcd->self.sg_tablesize = ~0;
+	hcd->self.sg_tablesize = SG_ALL;
 
 	/* support to build packet from discontinuous buffers */
 	hcd->self.no_sg_constraint = 1;
diff --git a/drivers/usb/misc/appledisplay.c b/drivers/usb/misc/appledisplay.c
index a0a3827..d7ec10b 100644
--- a/drivers/usb/misc/appledisplay.c
+++ b/drivers/usb/misc/appledisplay.c
@@ -84,7 +84,7 @@ struct appledisplay {
 	struct mutex sysfslock;		/* concurrent read and write */
 };
 
-static atomic_t count_displays = ATOMIC_INIT(0);
+static atomic_unchecked_t count_displays = ATOMIC_INIT(0);
 static struct workqueue_struct *wq;
 
 static void appledisplay_complete(struct urb *urb)
@@ -288,7 +288,7 @@ static int appledisplay_probe(struct usb_interface *iface,
 
 	/* Register backlight device */
 	snprintf(bl_name, sizeof(bl_name), "appledisplay%d",
-		atomic_inc_return(&count_displays) - 1);
+		atomic_inc_return_unchecked(&count_displays) - 1);
 	memset(&props, 0, sizeof(struct backlight_properties));
 	props.type = BACKLIGHT_RAW;
 	props.max_brightness = 0xff;
diff --git a/drivers/usb/misc/sisusbvga/sisusb_con.c b/drivers/usb/misc/sisusbvga/sisusb_con.c
index ace3430..7536bac 100644
--- a/drivers/usb/misc/sisusbvga/sisusb_con.c
+++ b/drivers/usb/misc/sisusbvga/sisusb_con.c
@@ -1416,32 +1416,94 @@ static void sisusbdummycon_init(struct vc_data *vc, int init)
 	vc_resize(vc, 80, 25);
 }
 
-static int sisusbdummycon_dummy(void)
+static void sisusb_con_deinit(struct vc_data *a)
 {
-    return 0;
 }
 
-#define SISUSBCONDUMMY	(void *)sisusbdummycon_dummy
+static void sisusb_con_clear(struct vc_data *a, int b, int c, int d, int e)
+{
+}
+
+static void sisusb_con_putc(struct vc_data *a, int b, int c, int d)
+{
+}
+
+static void sisusb_con_putcs(struct vc_data *a, const unsigned short *b, int c, int d, int e)
+{
+}
+
+static void sisusb_con_cursor(struct vc_data *a, int b)
+{
+}
+
+static int sisusb_con_scroll(struct vc_data *a, int b, int c, int d, int e)
+{
+	return 0;
+}
+
+static void sisusb_con_bmove(struct vc_data *a, int b, int c, int d, int e, int f, int g)
+{
+}
+
+static int sisusb_con_switch(struct vc_data *a)
+{
+	return 0;
+}
+
+static int sisusb_con_blank(struct vc_data *a, int b, int c)
+{
+	return 0;
+}
+
+static int sisusb_con_font_set(struct vc_data *a, struct console_font *b, unsigned c)
+{
+	return 0;
+}
+
+static int sisusb_con_font_get(struct vc_data *a, struct console_font *b)
+{
+	return 0;
+}
+
+static int sisusb_con_font_default(struct vc_data *a, struct console_font *b, char *c)
+{
+	return 0;
+}
+
+static int sisusb_con_font_copy(struct vc_data *a, int b)
+{
+	return 0;
+}
+
+static int sisusb_con_set_palette(struct vc_data *a, unsigned char *b)
+{
+	return 0;
+}
+
+static int sisusb_con_scrolldelta(struct vc_data *a, int b)
+{
+	return 0;
+}
 
 static const struct consw sisusb_dummy_con = {
 	.owner =		THIS_MODULE,
 	.con_startup =		sisusbdummycon_startup,
 	.con_init =		sisusbdummycon_init,
-	.con_deinit =		SISUSBCONDUMMY,
-	.con_clear =		SISUSBCONDUMMY,
-	.con_putc =		SISUSBCONDUMMY,
-	.con_putcs =		SISUSBCONDUMMY,
-	.con_cursor =		SISUSBCONDUMMY,
-	.con_scroll =		SISUSBCONDUMMY,
-	.con_bmove =		SISUSBCONDUMMY,
-	.con_switch =		SISUSBCONDUMMY,
-	.con_blank =		SISUSBCONDUMMY,
-	.con_font_set =		SISUSBCONDUMMY,
-	.con_font_get =		SISUSBCONDUMMY,
-	.con_font_default =	SISUSBCONDUMMY,
-	.con_font_copy =	SISUSBCONDUMMY,
-	.con_set_palette =	SISUSBCONDUMMY,
-	.con_scrolldelta =	SISUSBCONDUMMY,
+	.con_deinit =		sisusb_con_deinit,
+	.con_clear =		sisusb_con_clear,
+	.con_putc =		sisusb_con_putc,
+	.con_putcs =		sisusb_con_putcs,
+	.con_cursor =		sisusb_con_cursor,
+	.con_scroll =		sisusb_con_scroll,
+	.con_bmove =		sisusb_con_bmove,
+	.con_switch =		sisusb_con_switch,
+	.con_blank =		sisusb_con_blank,
+	.con_font_set =		sisusb_con_font_set,
+	.con_font_get =		sisusb_con_font_get,
+	.con_font_default =	sisusb_con_font_default,
+	.con_font_copy =	sisusb_con_font_copy,
+	.con_set_palette =	sisusb_con_set_palette,
+	.con_scrolldelta =	sisusb_con_scrolldelta,
 };
 
 int
diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c
index a66b01b..95a41b4 100644
--- a/drivers/usb/serial/console.c
+++ b/drivers/usb/serial/console.c
@@ -126,7 +126,7 @@ static int usb_console_setup(struct console *co, char *options)
 
 	info->port = port;
 
-	++port->port.count;
+	atomic_inc(&port->port.count);
 	if (!test_bit(ASYNCB_INITIALIZED, &port->port.flags)) {
 		if (serial->type->set_termios) {
 			/*
@@ -172,7 +172,7 @@ static int usb_console_setup(struct console *co, char *options)
 	}
 	/* Now that any required fake tty operations are completed restore
 	 * the tty port count */
-	--port->port.count;
+	atomic_dec(&port->port.count);
 	/* The console is special in terms of closing the device so
 	 * indicate this port is now acting as a system console. */
 	port->port.console = 1;
@@ -184,7 +184,7 @@ static int usb_console_setup(struct console *co, char *options)
 	tty_port_tty_set(&port->port, NULL);
 	tty_kref_put(tty);
  reset_open_count:
-	port->port.count = 0;
+	atomic_set(&port->port.count, 0);
 	usb_autopm_put_interface(serial->interface);
  error_get_interface:
 	usb_serial_put(serial);
@@ -195,7 +195,7 @@ static int usb_console_setup(struct console *co, char *options)
 static void usb_console_write(struct console *co,
 					const char *buf, unsigned count)
 {
-	static struct usbcons_info *info = &usbcons_info;
+	struct usbcons_info *info = &usbcons_info;
 	struct usb_serial_port *port = info->port;
 	struct usb_serial *serial;
 	int retval = -ENODEV;
diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c
index 5e67f63..2ef08d6 100644
--- a/drivers/usb/storage/transport.c
+++ b/drivers/usb/storage/transport.c
@@ -689,7 +689,7 @@ void usb_stor_invoke_transport(struct scsi_cmnd *srb, struct us_data *us)
 	if (need_auto_sense) {
 		int temp_result;
 		struct scsi_eh_save ses;
-		int sense_size = US_SENSE_SIZE;
+		unsigned int sense_size = US_SENSE_SIZE;
 		struct scsi_sense_hdr sshdr;
 		const u8 *scdd;
 		u8 fm_ili;
diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c
index 9de988a..4a45fdc 100644
--- a/drivers/usb/storage/usb.c
+++ b/drivers/usb/storage/usb.c
@@ -915,7 +915,7 @@ static void usb_stor_scan_dwork(struct work_struct *work)
 	clear_bit(US_FLIDX_SCAN_PENDING, &us->dflags);
 }
 
-static unsigned int usb_stor_sg_tablesize(struct usb_interface *intf)
+static unsigned short usb_stor_sg_tablesize(struct usb_interface *intf)
 {
 	struct usb_device *usb_dev = interface_to_usbdev(intf);
 
diff --git a/drivers/usb/storage/usb.h b/drivers/usb/storage/usb.h
index da0ad32..50b5bbe 100644
--- a/drivers/usb/storage/usb.h
+++ b/drivers/usb/storage/usb.h
@@ -63,7 +63,7 @@ struct us_unusual_dev {
 	__u8  useProtocol;
 	__u8  useTransport;
 	int (*initFunction)(struct us_data *);
-};
+} __do_const;
 
 
 /* Dynamic bitflag definitions (us->dflags): used in set_bit() etc. */
diff --git a/drivers/usb/usbip/vhci.h b/drivers/usb/usbip/vhci.h
index a863a98..d272795 100644
--- a/drivers/usb/usbip/vhci.h
+++ b/drivers/usb/usbip/vhci.h
@@ -83,7 +83,7 @@ struct vhci_hcd {
 	unsigned resuming:1;
 	unsigned long re_timeout;
 
-	atomic_t seqnum;
+	atomic_unchecked_t seqnum;
 
 	/*
 	 * NOTE:
diff --git a/drivers/usb/usbip/vhci_hcd.c b/drivers/usb/usbip/vhci_hcd.c
index fca5110..60c91ba 100644
--- a/drivers/usb/usbip/vhci_hcd.c
+++ b/drivers/usb/usbip/vhci_hcd.c
@@ -447,7 +447,7 @@ static void vhci_tx_urb(struct urb *urb)
 
 	spin_lock_irqsave(&vdev->priv_lock, flags);
 
-	priv->seqnum = atomic_inc_return(&the_controller->seqnum);
+	priv->seqnum = atomic_inc_return_unchecked(&the_controller->seqnum);
 	if (priv->seqnum == 0xffff)
 		dev_info(&urb->dev->dev, "seqnum max\n");
 
@@ -696,7 +696,7 @@ static int vhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
 			return -ENOMEM;
 		}
 
-		unlink->seqnum = atomic_inc_return(&the_controller->seqnum);
+		unlink->seqnum = atomic_inc_return_unchecked(&the_controller->seqnum);
 		if (unlink->seqnum == 0xffff)
 			pr_info("seqnum max\n");
 
@@ -904,7 +904,7 @@ static int vhci_start(struct usb_hcd *hcd)
 		vdev->rhport = rhport;
 	}
 
-	atomic_set(&vhci->seqnum, 0);
+	atomic_set_unchecked(&vhci->seqnum, 0);
 	spin_lock_init(&vhci->lock);
 
 	hcd->power_budget = 0; /* no limit */
diff --git a/drivers/usb/usbip/vhci_rx.c b/drivers/usb/usbip/vhci_rx.c
index d656e0e..466853e 100644
--- a/drivers/usb/usbip/vhci_rx.c
+++ b/drivers/usb/usbip/vhci_rx.c
@@ -81,7 +81,7 @@ static void vhci_recv_ret_submit(struct vhci_device *vdev,
 	if (!urb) {
 		pr_err("cannot find a urb of seqnum %u\n", pdu->base.seqnum);
 		pr_info("max seqnum %d\n",
-			atomic_read(&the_controller->seqnum));
+			atomic_read_unchecked(&the_controller->seqnum));
 		usbip_event_add(ud, VDEV_EVENT_ERROR_TCP);
 		return;
 	}
diff --git a/drivers/usb/usbip/vhci_sysfs.c b/drivers/usb/usbip/vhci_sysfs.c
index 5b5462e..fac23a0 100644
--- a/drivers/usb/usbip/vhci_sysfs.c
+++ b/drivers/usb/usbip/vhci_sysfs.c
@@ -60,7 +60,7 @@ static ssize_t status_show(struct device *dev, struct device_attribute *attr,
 		if (vdev->ud.status == VDEV_ST_USED) {
 			out += sprintf(out, "%03u %08x ",
 				       vdev->speed, vdev->devid);
-			out += sprintf(out, "%16p ", vdev->ud.tcp_socket);
+			out += sprintf(out, "%16pK ", vdev->ud.tcp_socket);
 			out += sprintf(out, "%s", dev_name(&vdev->udev->dev));
 
 		} else {
diff --git a/drivers/usb/wusbcore/wa-hc.h b/drivers/usb/wusbcore/wa-hc.h
index edc7267..9f65ce2 100644
--- a/drivers/usb/wusbcore/wa-hc.h
+++ b/drivers/usb/wusbcore/wa-hc.h
@@ -240,7 +240,7 @@ struct wahc {
 	spinlock_t xfer_list_lock;
 	struct work_struct xfer_enqueue_work;
 	struct work_struct xfer_error_work;
-	atomic_t xfer_id_count;
+	atomic_unchecked_t xfer_id_count;
 
 	kernel_ulong_t	quirks;
 };
@@ -305,7 +305,7 @@ static inline void wa_init(struct wahc *wa)
 	INIT_WORK(&wa->xfer_enqueue_work, wa_urb_enqueue_run);
 	INIT_WORK(&wa->xfer_error_work, wa_process_errored_transfers_run);
 	wa->dto_in_use = 0;
-	atomic_set(&wa->xfer_id_count, 1);
+	atomic_set_unchecked(&wa->xfer_id_count, 1);
 	/* init the buf in URBs */
 	for (index = 0; index < WA_MAX_BUF_IN_URBS; ++index)
 		usb_init_urb(&(wa->buf_in_urbs[index]));
diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
index 69af4fd..da390d7 100644
--- a/drivers/usb/wusbcore/wa-xfer.c
+++ b/drivers/usb/wusbcore/wa-xfer.c
@@ -314,7 +314,7 @@ static void wa_xfer_completion(struct wa_xfer *xfer)
  */
 static void wa_xfer_id_init(struct wa_xfer *xfer)
 {
-	xfer->id = atomic_add_return(1, &xfer->wa->xfer_id_count);
+	xfer->id = atomic_add_return_unchecked(1, &xfer->wa->xfer_id_count);
 }
 
 /* Return the xfer's ID. */
diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c
index 712a849..c3ecd41 100644
--- a/drivers/vfio/pci/vfio_pci.c
+++ b/drivers/vfio/pci/vfio_pci.c
@@ -1172,7 +1172,7 @@ static void vfio_pci_remove(struct pci_dev *pdev)
 }
 
 static pci_ers_result_t vfio_pci_aer_err_detected(struct pci_dev *pdev,
-						  pci_channel_state_t state)
+						  enum pci_channel_state state)
 {
 	struct vfio_pci_device *vdev;
 	struct vfio_device *device;
diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c
index 3bb02c6..a01ff38 100644
--- a/drivers/vhost/vringh.c
+++ b/drivers/vhost/vringh.c
@@ -551,7 +551,7 @@ static inline void __vringh_notify_disable(struct vringh *vrh,
 static inline int getu16_user(const struct vringh *vrh, u16 *val, const __virtio16 *p)
 {
 	__virtio16 v = 0;
-	int rc = get_user(v, (__force __virtio16 __user *)p);
+	int rc = get_user(v, (__force_user __virtio16 *)p);
 	*val = vringh16_to_cpu(vrh, v);
 	return rc;
 }
@@ -559,12 +559,12 @@ static inline int getu16_user(const struct vringh *vrh, u16 *val, const __virtio
 static inline int putu16_user(const struct vringh *vrh, __virtio16 *p, u16 val)
 {
 	__virtio16 v = cpu_to_vringh16(vrh, val);
-	return put_user(v, (__force __virtio16 __user *)p);
+	return put_user(v, (__force_user __virtio16 *)p);
 }
 
 static inline int copydesc_user(void *dst, const void *src, size_t len)
 {
-	return copy_from_user(dst, (__force void __user *)src, len) ?
+	return copy_from_user(dst, (void __force_user *)src, len) ?
 		-EFAULT : 0;
 }
 
@@ -572,19 +572,19 @@ static inline int putused_user(struct vring_used_elem *dst,
 			       const struct vring_used_elem *src,
 			       unsigned int num)
 {
-	return copy_to_user((__force void __user *)dst, src,
+	return copy_to_user((void __force_user *)dst, src,
 			    sizeof(*dst) * num) ? -EFAULT : 0;
 }
 
 static inline int xfer_from_user(void *src, void *dst, size_t len)
 {
-	return copy_from_user(dst, (__force void __user *)src, len) ?
+	return copy_from_user(dst, (void __force_user *)src, len) ?
 		-EFAULT : 0;
 }
 
 static inline int xfer_to_user(void *dst, void *src, size_t len)
 {
-	return copy_to_user((__force void __user *)dst, src, len) ?
+	return copy_to_user((void __force_user *)dst, src, len) ?
 		-EFAULT : 0;
 }
 
@@ -621,9 +621,9 @@ int vringh_init_user(struct vringh *vrh, u64 features,
 	vrh->last_used_idx = 0;
 	vrh->vring.num = num;
 	/* vring expects kernel addresses, but only used via accessors. */
-	vrh->vring.desc = (__force struct vring_desc *)desc;
-	vrh->vring.avail = (__force struct vring_avail *)avail;
-	vrh->vring.used = (__force struct vring_used *)used;
+	vrh->vring.desc = (__force_kernel struct vring_desc *)desc;
+	vrh->vring.avail = (__force_kernel struct vring_avail *)avail;
+	vrh->vring.used = (__force_kernel struct vring_used *)used;
 	return 0;
 }
 EXPORT_SYMBOL(vringh_init_user);
@@ -826,7 +826,7 @@ static inline int getu16_kern(const struct vringh *vrh,
 
 static inline int putu16_kern(const struct vringh *vrh, __virtio16 *p, u16 val)
 {
-	ACCESS_ONCE(*p) = cpu_to_vringh16(vrh, val);
+	ACCESS_ONCE_RW(*p) = cpu_to_vringh16(vrh, val);
 	return 0;
 }
 
diff --git a/drivers/video/backlight/kb3886_bl.c b/drivers/video/backlight/kb3886_bl.c
index 84a110a..96312c3 100644
--- a/drivers/video/backlight/kb3886_bl.c
+++ b/drivers/video/backlight/kb3886_bl.c
@@ -78,7 +78,7 @@ static struct kb3886bl_machinfo *bl_machinfo;
 static unsigned long kb3886bl_flags;
 #define KB3886BL_SUSPENDED     0x01
 
-static struct dmi_system_id kb3886bl_device_table[] __initdata = {
+static const struct dmi_system_id kb3886bl_device_table[] __initconst = {
 	{
 		.ident = "Sahara Touch-iT",
 		.matches = {
diff --git a/drivers/video/console/dummycon.c b/drivers/video/console/dummycon.c
index 0efc52f..4e72706 100644
--- a/drivers/video/console/dummycon.c
+++ b/drivers/video/console/dummycon.c
@@ -41,12 +41,74 @@ static void dummycon_init(struct vc_data *vc, int init)
 	vc_resize(vc, DUMMY_COLUMNS, DUMMY_ROWS);
 }
 
-static int dummycon_dummy(void)
+static void dummycon_deinit(struct vc_data *a)
+{
+}
+
+static void dummycon_clear(struct vc_data *a, int b, int c, int d, int e)
+{
+}
+
+static void dummycon_putc(struct vc_data *a, int b, int c, int d)
+{
+}
+
+static void dummycon_putcs(struct vc_data *a, const unsigned short *b, int c, int d, int e)
+{
+}
+
+static void dummycon_cursor(struct vc_data *a, int b)
+{
+}
+
+static int dummycon_scroll(struct vc_data *a, int b, int c, int d, int e)
+{
+    return 0;
+}
+
+static void dummycon_bmove(struct vc_data *a, int b, int c, int d, int e, int f, int g)
+{
+}
+
+static int dummycon_switch(struct vc_data *a)
 {
     return 0;
 }
 
-#define DUMMY	(void *)dummycon_dummy
+static int dummycon_blank(struct vc_data *a, int b, int c)
+{
+    return 0;
+}
+
+static int dummycon_font_set(struct vc_data *a, struct console_font *b, unsigned c)
+{
+    return 0;
+}
+
+static int dummycon_font_get(struct vc_data *a, struct console_font *b)
+{
+    return 0;
+}
+
+static int dummycon_font_default(struct vc_data *a, struct console_font *b , char *c)
+{
+    return 0;
+}
+
+static int dummycon_font_copy(struct vc_data *a, int b)
+{
+    return 0;
+}
+
+static int dummycon_set_palette(struct vc_data *a, unsigned char *b)
+{
+    return 0;
+}
+
+static int dummycon_scrolldelta(struct vc_data *a, int b)
+{
+    return 0;
+}
 
 /*
  *  The console `switch' structure for the dummy console
@@ -58,20 +120,20 @@ const struct consw dummy_con = {
     .owner =		THIS_MODULE,
     .con_startup =	dummycon_startup,
     .con_init =		dummycon_init,
-    .con_deinit =	DUMMY,
-    .con_clear =	DUMMY,
-    .con_putc =		DUMMY,
-    .con_putcs =	DUMMY,
-    .con_cursor =	DUMMY,
-    .con_scroll =	DUMMY,
-    .con_bmove =	DUMMY,
-    .con_switch =	DUMMY,
-    .con_blank =	DUMMY,
-    .con_font_set =	DUMMY,
-    .con_font_get =	DUMMY,
-    .con_font_default =	DUMMY,
-    .con_font_copy =	DUMMY,
-    .con_set_palette =	DUMMY,
-    .con_scrolldelta =	DUMMY,
+    .con_deinit =	dummycon_deinit,
+    .con_clear =	dummycon_clear,
+    .con_putc =		dummycon_putc,
+    .con_putcs =	dummycon_putcs,
+    .con_cursor =	dummycon_cursor,
+    .con_scroll =	dummycon_scroll,
+    .con_bmove =	dummycon_bmove,
+    .con_switch =	dummycon_switch,
+    .con_blank =	dummycon_blank,
+    .con_font_set =	dummycon_font_set,
+    .con_font_get =	dummycon_font_get,
+    .con_font_default =	dummycon_font_default,
+    .con_font_copy =	dummycon_font_copy,
+    .con_set_palette =	dummycon_set_palette,
+    .con_scrolldelta =	dummycon_scrolldelta,
 };
 EXPORT_SYMBOL_GPL(dummy_con);
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index 6e92917..2f3dbad 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -106,7 +106,7 @@ static int fbcon_softback_size = 32768;
 static unsigned long softback_buf, softback_curr;
 static unsigned long softback_in;
 static unsigned long softback_top, softback_end;
-static int softback_lines;
+static long softback_lines;
 /* console mappings */
 static int first_fb_vc;
 static int last_fb_vc = MAX_NR_CONSOLES - 1;
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index 517f565..a0a8f49 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -1411,24 +1411,33 @@ static int vgacon_scroll(struct vc_data *c, int t, int b, int dir,
  *  The console `switch' structure for the VGA based console
  */
 
-static int vgacon_dummy(struct vc_data *c)
+static void vgacon_clear(struct vc_data *vc, int a, int b, int c, int d)
 {
-	return 0;
 }
 
-#define DUMMY (void *) vgacon_dummy
+static void vgacon_putc(struct vc_data *vc, int a, int b, int c)
+{
+}
+
+static void vgacon_putcs(struct vc_data *vc, const unsigned short *a, int b, int c, int d)
+{
+}
+
+static void vgacon_bmove(struct vc_data *vc, int a, int b, int c, int d, int e, int f)
+{
+}
 
 const struct consw vga_con = {
 	.owner = THIS_MODULE,
 	.con_startup = vgacon_startup,
 	.con_init = vgacon_init,
 	.con_deinit = vgacon_deinit,
-	.con_clear = DUMMY,
-	.con_putc = DUMMY,
-	.con_putcs = DUMMY,
+	.con_clear = vgacon_clear,
+	.con_putc = vgacon_putc,
+	.con_putcs = vgacon_putcs,
 	.con_cursor = vgacon_cursor,
 	.con_scroll = vgacon_scroll,
-	.con_bmove = DUMMY,
+	.con_bmove = vgacon_bmove,
 	.con_switch = vgacon_switch,
 	.con_blank = vgacon_blank,
 	.con_font_set = vgacon_font_set,
diff --git a/drivers/video/fbdev/arcfb.c b/drivers/video/fbdev/arcfb.c
index 1b0b233..6f34c2c 100644
--- a/drivers/video/fbdev/arcfb.c
+++ b/drivers/video/fbdev/arcfb.c
@@ -458,7 +458,7 @@ static ssize_t arcfb_write(struct fb_info *info, const char __user *buf,
 		return -ENOSPC;
 
 	err = 0;
-	if ((count + p) > fbmemlength) {
+	if (count > (fbmemlength - p)) {
 		count = fbmemlength - p;
 		err = -ENOSPC;
 	}
diff --git a/drivers/video/fbdev/aty/aty128fb.c b/drivers/video/fbdev/aty/aty128fb.c
index 0a46268..e55dcb5 100644
--- a/drivers/video/fbdev/aty/aty128fb.c
+++ b/drivers/video/fbdev/aty/aty128fb.c
@@ -144,7 +144,7 @@ enum {
 };
 
 /* Must match above enum */
-static char * const r128_family[] = {
+static const char * const r128_family[] = {
 	"AGP",
 	"PCI",
 	"PRO AGP",
diff --git a/drivers/video/fbdev/aty/atyfb_base.c b/drivers/video/fbdev/aty/atyfb_base.c
index f34ed47f..7283c9f 100644
--- a/drivers/video/fbdev/aty/atyfb_base.c
+++ b/drivers/video/fbdev/aty/atyfb_base.c
@@ -1335,10 +1335,14 @@ static int atyfb_set_par(struct fb_info *info)
 	par->accel_flags = var->accel_flags; /* hack */
 
 	if (var->accel_flags) {
-		info->fbops->fb_sync = atyfb_sync;
+		pax_open_kernel();
+		const_cast(info->fbops->fb_sync) = atyfb_sync;
+		pax_close_kernel();
 		info->flags &= ~FBINFO_HWACCEL_DISABLED;
 	} else {
-		info->fbops->fb_sync = NULL;
+		pax_open_kernel();
+		const_cast(info->fbops->fb_sync) = NULL;
+		pax_close_kernel();
 		info->flags |= FBINFO_HWACCEL_DISABLED;
 	}
 
diff --git a/drivers/video/fbdev/aty/mach64_ct.c b/drivers/video/fbdev/aty/mach64_ct.c
index 51f29d6..2c15339 100644
--- a/drivers/video/fbdev/aty/mach64_ct.c
+++ b/drivers/video/fbdev/aty/mach64_ct.c
@@ -630,13 +630,14 @@ static void aty_resume_pll_ct(const struct fb_info *info,
 	aty_st_pll_ct(EXT_VPLL_CNTL, pll->ct.ext_vpll_cntl, par);
 }
 
-static int dummy(void)
+static int aty_set_dac(const struct fb_info * info,
+		const union aty_pll * pll, u32 bpp, u32 accel)
 {
 	return 0;
 }
 
 const struct aty_dac_ops aty_dac_ct = {
-	.set_dac	= (void *) dummy,
+	.set_dac	= aty_set_dac
 };
 
 const struct aty_pll_ops aty_pll_ct = {
diff --git a/drivers/video/fbdev/aty/mach64_cursor.c b/drivers/video/fbdev/aty/mach64_cursor.c
index 2fa0317..d687dab 100644
--- a/drivers/video/fbdev/aty/mach64_cursor.c
+++ b/drivers/video/fbdev/aty/mach64_cursor.c
@@ -8,6 +8,7 @@
 #include "../core/fb_draw.h"
 
 #include <asm/io.h>
+#include <asm/pgtable.h>
 
 #ifdef __sparc__
 #include <asm/fbio.h>
@@ -218,7 +219,9 @@ int aty_init_cursor(struct fb_info *info)
 	info->sprite.buf_align = 16; 	/* and 64 lines tall. */
 	info->sprite.flags = FB_PIXMAP_IO;
 
-	info->fbops->fb_cursor = atyfb_cursor;
+	pax_open_kernel();
+	const_cast(info->fbops->fb_cursor) = atyfb_cursor;
+	pax_close_kernel();
 
 	return 0;
 }
diff --git a/drivers/video/fbdev/aty/mach64_gx.c b/drivers/video/fbdev/aty/mach64_gx.c
index 10c988a..f7d9299 100644
--- a/drivers/video/fbdev/aty/mach64_gx.c
+++ b/drivers/video/fbdev/aty/mach64_gx.c
@@ -894,17 +894,26 @@ static int aty_set_dac_unsupported(const struct fb_info *info,
 	return 0;
 }
 
-static int dummy(void)
+static int aty_var_to_pll(const struct fb_info * info, u32 vclk_per, u32 bpp, union aty_pll * pll)
 {
 	return 0;
 }
 
+static u32 aty_pll_to_var(const struct fb_info * info, const union aty_pll * pll)
+{
+	return 0;
+}
+
+static void aty_set_pll(const struct fb_info * info, const union aty_pll * pll)
+{
+}
+
 const struct aty_dac_ops aty_dac_unsupported = {
 	.set_dac	= aty_set_dac_unsupported,
 };
 
 const struct aty_pll_ops aty_pll_unsupported = {
-	.var_to_pll	= (void *) dummy,
-	.pll_to_var	= (void *) dummy,
-	.set_pll	= (void *) dummy,
+	.var_to_pll	= aty_var_to_pll,
+	.pll_to_var	= aty_pll_to_var,
+	.set_pll	= aty_set_pll,
 };
diff --git a/drivers/video/fbdev/core/fb_defio.c b/drivers/video/fbdev/core/fb_defio.c
index 57721c7..332b94b 100644
--- a/drivers/video/fbdev/core/fb_defio.c
+++ b/drivers/video/fbdev/core/fb_defio.c
@@ -207,7 +207,9 @@ void fb_deferred_io_init(struct fb_info *info)
 
 	BUG_ON(!fbdefio);
 	mutex_init(&fbdefio->lock);
-	info->fbops->fb_mmap = fb_deferred_io_mmap;
+	pax_open_kernel();
+	const_cast(info->fbops->fb_mmap) = fb_deferred_io_mmap;
+	pax_close_kernel();
 	INIT_DELAYED_WORK(&info->deferred_work, fb_deferred_io_work);
 	INIT_LIST_HEAD(&fbdefio->pagelist);
 	if (fbdefio->delay == 0) /* set a default of 1 s */
@@ -238,7 +240,9 @@ void fb_deferred_io_cleanup(struct fb_info *info)
 		page->mapping = NULL;
 	}
 
-	info->fbops->fb_mmap = NULL;
+	pax_open_kernel();
+	const_cast(info->fbops->fb_mmap) = NULL;
+	pax_close_kernel();
 	mutex_destroy(&fbdefio->lock);
 }
 EXPORT_SYMBOL_GPL(fb_deferred_io_cleanup);
diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 4e73b6f..69a6b87 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1301,7 +1301,7 @@ static int do_fscreeninfo_to_user(struct fb_fix_screeninfo *fix,
 	__u32 data;
 	int err;
 
-	err = copy_to_user(&fix32->id, &fix->id, sizeof(fix32->id));
+	err = copy_to_user(fix32->id, &fix->id, sizeof(fix32->id));
 
 	data = (__u32) (unsigned long) fix->smem_start;
 	err |= put_user(data, &fix32->smem_start);
@@ -1435,10 +1435,7 @@ fb_mmap(struct file *file, struct vm_area_struct * vma)
 	return vm_iomap_memory(vma, start, len);
 }
 
-static int
-fb_open(struct inode *inode, struct file *file)
-__acquires(&info->lock)
-__releases(&info->lock)
+static int fb_open(struct inode *inode, struct file *file)
 {
 	int fbidx = iminor(inode);
 	struct fb_info *info;
@@ -1476,10 +1473,7 @@ out:
 	return res;
 }
 
-static int 
-fb_release(struct inode *inode, struct file *file)
-__acquires(&info->lock)
-__releases(&info->lock)
+static int fb_release(struct inode *inode, struct file *file)
 {
 	struct fb_info * const info = file->private_data;
 
diff --git a/drivers/video/fbdev/hyperv_fb.c b/drivers/video/fbdev/hyperv_fb.c
index e2451bd..ab7ccd1 100644
--- a/drivers/video/fbdev/hyperv_fb.c
+++ b/drivers/video/fbdev/hyperv_fb.c
@@ -240,7 +240,7 @@ static uint screen_fb_size;
 static inline int synthvid_send(struct hv_device *hdev,
 				struct synthvid_msg *msg)
 {
-	static atomic64_t request_id = ATOMIC64_INIT(0);
+	static atomic64_unchecked_t request_id = ATOMIC64_INIT(0);
 	int ret;
 
 	msg->pipe_hdr.type = PIPE_MSG_DATA;
@@ -248,7 +248,7 @@ static inline int synthvid_send(struct hv_device *hdev,
 
 	ret = vmbus_sendpacket(hdev->channel, msg,
 			       msg->vid_hdr.size + sizeof(struct pipe_msg_hdr),
-			       atomic64_inc_return(&request_id),
+			       atomic64_inc_return_unchecked(&request_id),
 			       VM_PKT_DATA_INBAND, 0);
 
 	if (ret)
diff --git a/drivers/video/fbdev/i810/i810_accel.c b/drivers/video/fbdev/i810/i810_accel.c
index 7672d2e..b56437f 100644
--- a/drivers/video/fbdev/i810/i810_accel.c
+++ b/drivers/video/fbdev/i810/i810_accel.c
@@ -73,6 +73,7 @@ static inline int wait_for_space(struct fb_info *info, u32 space)
 		}
 	}
 	printk("ringbuffer lockup!!!\n");
+	printk("head:%u tail:%u iring.size:%u space:%u\n", head, tail, par->iring.size, space);
 	i810_report_error(mmio); 
 	par->dev_flags |= LOCKUP;
 	info->pixmap.scan_align = 1;
diff --git a/drivers/video/fbdev/matrox/matroxfb_DAC1064.c b/drivers/video/fbdev/matrox/matroxfb_DAC1064.c
index a01147f..5d896f8 100644
--- a/drivers/video/fbdev/matrox/matroxfb_DAC1064.c
+++ b/drivers/video/fbdev/matrox/matroxfb_DAC1064.c
@@ -1088,14 +1088,20 @@ static void MGAG100_restore(struct matrox_fb_info *minfo)
 
 #ifdef CONFIG_FB_MATROX_MYSTIQUE
 struct matrox_switch matrox_mystique = {
-	MGA1064_preinit, MGA1064_reset, MGA1064_init, MGA1064_restore,
+	.preinit = MGA1064_preinit,
+	.reset = MGA1064_reset,
+	.init = MGA1064_init,
+	.restore = MGA1064_restore,
 };
 EXPORT_SYMBOL(matrox_mystique);
 #endif
 
 #ifdef CONFIG_FB_MATROX_G
 struct matrox_switch matrox_G100 = {
-	MGAG100_preinit, MGAG100_reset, MGAG100_init, MGAG100_restore,
+	.preinit = MGAG100_preinit,
+	.reset = MGAG100_reset,
+	.init = MGAG100_init,
+	.restore = MGAG100_restore,
 };
 EXPORT_SYMBOL(matrox_G100);
 #endif
diff --git a/drivers/video/fbdev/matrox/matroxfb_Ti3026.c b/drivers/video/fbdev/matrox/matroxfb_Ti3026.c
index 195ad7c..09743fc 100644
--- a/drivers/video/fbdev/matrox/matroxfb_Ti3026.c
+++ b/drivers/video/fbdev/matrox/matroxfb_Ti3026.c
@@ -738,7 +738,10 @@ static int Ti3026_preinit(struct matrox_fb_info *minfo)
 }
 
 struct matrox_switch matrox_millennium = {
-	Ti3026_preinit, Ti3026_reset, Ti3026_init, Ti3026_restore
+	.preinit = Ti3026_preinit,
+	.reset = Ti3026_reset,
+	.init = Ti3026_init,
+	.restore = Ti3026_restore
 };
 EXPORT_SYMBOL(matrox_millennium);
 #endif
diff --git a/drivers/video/fbdev/matrox/matroxfb_base.c b/drivers/video/fbdev/matrox/matroxfb_base.c
index 11eb094..622ee31 100644
--- a/drivers/video/fbdev/matrox/matroxfb_base.c
+++ b/drivers/video/fbdev/matrox/matroxfb_base.c
@@ -2176,7 +2176,7 @@ static struct pci_driver matroxfb_driver = {
 #define RS1056x480	14	/* 132 x 60 text */
 #define RSNoxNo		15
 /* 10-FF */
-static struct { int xres, yres, left, right, upper, lower, hslen, vslen, vfreq; } timmings[] __initdata = {
+static struct { unsigned int xres, yres, left, right, upper, lower, hslen, vslen, vfreq; } timmings[] __initdata = {
 	{  640,  400,  48, 16, 39,  8,  96, 2, 70 },
 	{  640,  480,  48, 16, 33, 10,  96, 2, 60 },
 	{  800,  600, 144, 24, 28,  8, 112, 6, 60 },
diff --git a/drivers/video/fbdev/mb862xx/mb862xxfb_accel.c b/drivers/video/fbdev/mb862xx/mb862xxfb_accel.c
index fe92eed..239e386 100644
--- a/drivers/video/fbdev/mb862xx/mb862xxfb_accel.c
+++ b/drivers/video/fbdev/mb862xx/mb862xxfb_accel.c
@@ -312,14 +312,18 @@ void mb862xxfb_init_accel(struct fb_info *info, int xres)
 	struct mb862xxfb_par *par = info->par;
 
 	if (info->var.bits_per_pixel == 32) {
-		info->fbops->fb_fillrect = cfb_fillrect;
-		info->fbops->fb_copyarea = cfb_copyarea;
-		info->fbops->fb_imageblit = cfb_imageblit;
+		pax_open_kernel();
+		const_cast(info->fbops->fb_fillrect) = cfb_fillrect;
+		const_cast(info->fbops->fb_copyarea) = cfb_copyarea;
+		const_cast(info->fbops->fb_imageblit) = cfb_imageblit;
+		pax_close_kernel();
 	} else {
 		outreg(disp, GC_L0EM, 3);
-		info->fbops->fb_fillrect = mb86290fb_fillrect;
-		info->fbops->fb_copyarea = mb86290fb_copyarea;
-		info->fbops->fb_imageblit = mb86290fb_imageblit;
+		pax_open_kernel();
+		const_cast(info->fbops->fb_fillrect) = mb86290fb_fillrect;
+		const_cast(info->fbops->fb_copyarea) = mb86290fb_copyarea;
+		const_cast(info->fbops->fb_imageblit) = mb86290fb_imageblit;
+		pax_close_kernel();
 	}
 	outreg(draw, GDC_REG_DRAW_BASE, 0);
 	outreg(draw, GDC_REG_MODE_MISC, 0x8000);
diff --git a/drivers/video/fbdev/nvidia/nvidia.c b/drivers/video/fbdev/nvidia/nvidia.c
index ce7dab7..89d6521 100644
--- a/drivers/video/fbdev/nvidia/nvidia.c
+++ b/drivers/video/fbdev/nvidia/nvidia.c
@@ -660,19 +660,23 @@ static int nvidiafb_set_par(struct fb_info *info)
 	info->fix.line_length = (info->var.xres_virtual *
 				 info->var.bits_per_pixel) >> 3;
 	if (info->var.accel_flags) {
-		info->fbops->fb_imageblit = nvidiafb_imageblit;
-		info->fbops->fb_fillrect = nvidiafb_fillrect;
-		info->fbops->fb_copyarea = nvidiafb_copyarea;
-		info->fbops->fb_sync = nvidiafb_sync;
+		pax_open_kernel();
+		const_cast(info->fbops->fb_imageblit) = nvidiafb_imageblit;
+		const_cast(info->fbops->fb_fillrect) = nvidiafb_fillrect;
+		const_cast(info->fbops->fb_copyarea) = nvidiafb_copyarea;
+		const_cast(info->fbops->fb_sync) = nvidiafb_sync;
+		pax_close_kernel();
 		info->pixmap.scan_align = 4;
 		info->flags &= ~FBINFO_HWACCEL_DISABLED;
 		info->flags |= FBINFO_READS_FAST;
 		NVResetGraphics(info);
 	} else {
-		info->fbops->fb_imageblit = cfb_imageblit;
-		info->fbops->fb_fillrect = cfb_fillrect;
-		info->fbops->fb_copyarea = cfb_copyarea;
-		info->fbops->fb_sync = NULL;
+		pax_open_kernel();
+		const_cast(info->fbops->fb_imageblit) = cfb_imageblit;
+		const_cast(info->fbops->fb_fillrect) = cfb_fillrect;
+		const_cast(info->fbops->fb_copyarea) = cfb_copyarea;
+		const_cast(info->fbops->fb_sync) = NULL;
+		pax_close_kernel();
 		info->pixmap.scan_align = 1;
 		info->flags |= FBINFO_HWACCEL_DISABLED;
 		info->flags &= ~FBINFO_READS_FAST;
@@ -1164,8 +1168,11 @@ static int nvidia_set_fbinfo(struct fb_info *info)
 	info->pixmap.size = 8 * 1024;
 	info->pixmap.flags = FB_PIXMAP_SYSTEM;
 
-	if (!hwcur)
-	    info->fbops->fb_cursor = NULL;
+	if (!hwcur) {
+		pax_open_kernel();
+		const_cast(info->fbops->fb_cursor) = NULL;
+		pax_close_kernel();
+	}
 
 	info->var.accel_flags = (!noaccel);
 
diff --git a/drivers/video/fbdev/omap2/omapfb/dss/display.c b/drivers/video/fbdev/omap2/omapfb/dss/display.c
index ef5b902..2ae011b 100644
--- a/drivers/video/fbdev/omap2/omapfb/dss/display.c
+++ b/drivers/video/fbdev/omap2/omapfb/dss/display.c
@@ -161,12 +161,14 @@ int omapdss_register_display(struct omap_dss_device *dssdev)
 	if (dssdev->name == NULL)
 		dssdev->name = dssdev->alias;
 
+	pax_open_kernel();
 	if (drv && drv->get_resolution == NULL)
-		drv->get_resolution = omapdss_default_get_resolution;
+		const_cast(drv->get_resolution) = omapdss_default_get_resolution;
 	if (drv && drv->get_recommended_bpp == NULL)
-		drv->get_recommended_bpp = omapdss_default_get_recommended_bpp;
+		const_cast(drv->get_recommended_bpp) = omapdss_default_get_recommended_bpp;
 	if (drv && drv->get_timings == NULL)
-		drv->get_timings = omapdss_default_get_timings;
+		const_cast(drv->get_timings) = omapdss_default_get_timings;
+	pax_close_kernel();
 
 	mutex_lock(&panel_list_mutex);
 	list_add_tail(&dssdev->panel_list, &panel_list);
diff --git a/drivers/video/fbdev/s1d13xxxfb.c b/drivers/video/fbdev/s1d13xxxfb.c
index 96aa46d..65e2554 100644
--- a/drivers/video/fbdev/s1d13xxxfb.c
+++ b/drivers/video/fbdev/s1d13xxxfb.c
@@ -880,8 +880,10 @@ static int s1d13xxxfb_probe(struct platform_device *pdev)
 
 	switch(prod_id) {
 	case S1D13506_PROD_ID:	/* activate acceleration */
-		s1d13xxxfb_fbops.fb_fillrect = s1d13xxxfb_bitblt_solidfill;
-		s1d13xxxfb_fbops.fb_copyarea = s1d13xxxfb_bitblt_copyarea;
+		pax_open_kernel();
+		const_cast(s1d13xxxfb_fbops.fb_fillrect) = s1d13xxxfb_bitblt_solidfill;
+		const_cast(s1d13xxxfb_fbops.fb_copyarea) = s1d13xxxfb_bitblt_copyarea;
+		pax_close_kernel();
 		info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN |
 			FBINFO_HWACCEL_FILLRECT | FBINFO_HWACCEL_COPYAREA;
 		break;
diff --git a/drivers/video/fbdev/sh_mobile_lcdcfb.c b/drivers/video/fbdev/sh_mobile_lcdcfb.c
index 82c0a8c..42499a1 100644
--- a/drivers/video/fbdev/sh_mobile_lcdcfb.c
+++ b/drivers/video/fbdev/sh_mobile_lcdcfb.c
@@ -439,9 +439,9 @@ static unsigned long lcdc_sys_read_data(void *handle)
 }
 
 static struct sh_mobile_lcdc_sys_bus_ops sh_mobile_lcdc_sys_bus_ops = {
-	lcdc_sys_write_index,
-	lcdc_sys_write_data,
-	lcdc_sys_read_data,
+	.write_index = lcdc_sys_write_index,
+	.write_data = lcdc_sys_write_data,
+	.read_data = lcdc_sys_read_data,
 };
 
 static int sh_mobile_lcdc_sginit(struct fb_info *info,
diff --git a/drivers/video/fbdev/sis/sis_main.h b/drivers/video/fbdev/sis/sis_main.h
index 32e23c2..7b73082 100644
--- a/drivers/video/fbdev/sis/sis_main.h
+++ b/drivers/video/fbdev/sis/sis_main.h
@@ -763,7 +763,7 @@ extern void		SiS_SetCH700x(struct SiS_Private *SiS_Pr, unsigned short reg, unsig
 extern unsigned short	SiS_GetCH701x(struct SiS_Private *SiS_Pr, unsigned short reg);
 extern void		SiS_SetCH701x(struct SiS_Private *SiS_Pr, unsigned short reg, unsigned char val);
 extern void		SiS_SetCH70xxANDOR(struct SiS_Private *SiS_Pr, unsigned short reg,
-				unsigned char myor, unsigned char myand);
+				unsigned char myor, unsigned short myand);
 extern void		SiS_DDC2Delay(struct SiS_Private *SiS_Pr, unsigned int delaytime);
 extern void		SiS_SetChrontelGPIO(struct SiS_Private *SiS_Pr, unsigned short myvbinfo);
 extern unsigned short	SiS_HandleDDC(struct SiS_Private *SiS_Pr, unsigned int VBFlags, int VGAEngine,
diff --git a/drivers/video/fbdev/smscufx.c b/drivers/video/fbdev/smscufx.c
index 9279e5f..d9fb0bd 100644
--- a/drivers/video/fbdev/smscufx.c
+++ b/drivers/video/fbdev/smscufx.c
@@ -1174,7 +1174,9 @@ static int ufx_ops_release(struct fb_info *info, int user)
 		fb_deferred_io_cleanup(info);
 		kfree(info->fbdefio);
 		info->fbdefio = NULL;
-		info->fbops->fb_mmap = ufx_ops_mmap;
+		pax_open_kernel();
+		const_cast(info->fbops->fb_mmap) = ufx_ops_mmap;
+		pax_close_kernel();
 	}
 
 	pr_debug("released /dev/fb%d user=%d count=%d",
diff --git a/drivers/video/fbdev/udlfb.c b/drivers/video/fbdev/udlfb.c
index e9c2f7b..87506f4 100644
--- a/drivers/video/fbdev/udlfb.c
+++ b/drivers/video/fbdev/udlfb.c
@@ -623,11 +623,11 @@ static int dlfb_handle_damage(struct dlfb_data *dev, int x, int y,
 		dlfb_urb_completion(urb);
 
 error:
-	atomic_add(bytes_sent, &dev->bytes_sent);
-	atomic_add(bytes_identical, &dev->bytes_identical);
-	atomic_add(width*height*2, &dev->bytes_rendered);
+	atomic_add_unchecked(bytes_sent, &dev->bytes_sent);
+	atomic_add_unchecked(bytes_identical, &dev->bytes_identical);
+	atomic_add_unchecked(width*height*2, &dev->bytes_rendered);
 	end_cycles = get_cycles();
-	atomic_add(((unsigned int) ((end_cycles - start_cycles)
+	atomic_add_unchecked(((unsigned int) ((end_cycles - start_cycles)
 		    >> 10)), /* Kcycles */
 		   &dev->cpu_kcycles_used);
 
@@ -748,11 +748,11 @@ static void dlfb_dpy_deferred_io(struct fb_info *info,
 		dlfb_urb_completion(urb);
 
 error:
-	atomic_add(bytes_sent, &dev->bytes_sent);
-	atomic_add(bytes_identical, &dev->bytes_identical);
-	atomic_add(bytes_rendered, &dev->bytes_rendered);
+	atomic_add_unchecked(bytes_sent, &dev->bytes_sent);
+	atomic_add_unchecked(bytes_identical, &dev->bytes_identical);
+	atomic_add_unchecked(bytes_rendered, &dev->bytes_rendered);
 	end_cycles = get_cycles();
-	atomic_add(((unsigned int) ((end_cycles - start_cycles)
+	atomic_add_unchecked(((unsigned int) ((end_cycles - start_cycles)
 		    >> 10)), /* Kcycles */
 		   &dev->cpu_kcycles_used);
 }
@@ -991,7 +991,9 @@ static int dlfb_ops_release(struct fb_info *info, int user)
 		fb_deferred_io_cleanup(info);
 		kfree(info->fbdefio);
 		info->fbdefio = NULL;
-		info->fbops->fb_mmap = dlfb_ops_mmap;
+		pax_open_kernel();
+		const_cast(info->fbops->fb_mmap) = dlfb_ops_mmap;
+		pax_close_kernel();
 	}
 
 	pr_warn("released /dev/fb%d user=%d count=%d\n",
@@ -1373,7 +1375,7 @@ static ssize_t metrics_bytes_rendered_show(struct device *fbdev,
 	struct fb_info *fb_info = dev_get_drvdata(fbdev);
 	struct dlfb_data *dev = fb_info->par;
 	return snprintf(buf, PAGE_SIZE, "%u\n",
-			atomic_read(&dev->bytes_rendered));
+			atomic_read_unchecked(&dev->bytes_rendered));
 }
 
 static ssize_t metrics_bytes_identical_show(struct device *fbdev,
@@ -1381,7 +1383,7 @@ static ssize_t metrics_bytes_identical_show(struct device *fbdev,
 	struct fb_info *fb_info = dev_get_drvdata(fbdev);
 	struct dlfb_data *dev = fb_info->par;
 	return snprintf(buf, PAGE_SIZE, "%u\n",
-			atomic_read(&dev->bytes_identical));
+			atomic_read_unchecked(&dev->bytes_identical));
 }
 
 static ssize_t metrics_bytes_sent_show(struct device *fbdev,
@@ -1389,7 +1391,7 @@ static ssize_t metrics_bytes_sent_show(struct device *fbdev,
 	struct fb_info *fb_info = dev_get_drvdata(fbdev);
 	struct dlfb_data *dev = fb_info->par;
 	return snprintf(buf, PAGE_SIZE, "%u\n",
-			atomic_read(&dev->bytes_sent));
+			atomic_read_unchecked(&dev->bytes_sent));
 }
 
 static ssize_t metrics_cpu_kcycles_used_show(struct device *fbdev,
@@ -1397,7 +1399,7 @@ static ssize_t metrics_cpu_kcycles_used_show(struct device *fbdev,
 	struct fb_info *fb_info = dev_get_drvdata(fbdev);
 	struct dlfb_data *dev = fb_info->par;
 	return snprintf(buf, PAGE_SIZE, "%u\n",
-			atomic_read(&dev->cpu_kcycles_used));
+			atomic_read_unchecked(&dev->cpu_kcycles_used));
 }
 
 static ssize_t edid_show(
@@ -1457,10 +1459,10 @@ static ssize_t metrics_reset_store(struct device *fbdev,
 	struct fb_info *fb_info = dev_get_drvdata(fbdev);
 	struct dlfb_data *dev = fb_info->par;
 
-	atomic_set(&dev->bytes_rendered, 0);
-	atomic_set(&dev->bytes_identical, 0);
-	atomic_set(&dev->bytes_sent, 0);
-	atomic_set(&dev->cpu_kcycles_used, 0);
+	atomic_set_unchecked(&dev->bytes_rendered, 0);
+	atomic_set_unchecked(&dev->bytes_identical, 0);
+	atomic_set_unchecked(&dev->bytes_sent, 0);
+	atomic_set_unchecked(&dev->cpu_kcycles_used, 0);
 
 	return count;
 }
diff --git a/drivers/video/fbdev/uvesafb.c b/drivers/video/fbdev/uvesafb.c
index 178ae93..043ddca 100644
--- a/drivers/video/fbdev/uvesafb.c
+++ b/drivers/video/fbdev/uvesafb.c
@@ -19,6 +19,7 @@
 #include <linux/io.h>
 #include <linux/mutex.h>
 #include <linux/slab.h>
+#include <linux/moduleloader.h>
 #include <video/edid.h>
 #include <video/uvesafb.h>
 #ifdef CONFIG_X86
@@ -565,10 +566,32 @@ static int uvesafb_vbe_getpmi(struct uvesafb_ktask *task,
 	if ((task->t.regs.eax & 0xffff) != 0x4f || task->t.regs.es < 0xc000) {
 		par->pmi_setpal = par->ypan = 0;
 	} else {
+
+#ifdef CONFIG_PAX_KERNEXEC
+#ifdef CONFIG_MODULES
+		par->pmi_code = module_alloc_exec((u16)task->t.regs.ecx);
+#endif
+		if (!par->pmi_code) {
+			par->pmi_setpal = par->ypan = 0;
+			return 0;
+		}
+#endif
+
 		par->pmi_base = (u16 *)phys_to_virt(((u32)task->t.regs.es << 4)
 						+ task->t.regs.edi);
+
+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
+		pax_open_kernel();
+		memcpy(par->pmi_code, par->pmi_base, (u16)task->t.regs.ecx);
+		pax_close_kernel();
+
+		par->pmi_start = (void *)ktva_ktla((unsigned long)(par->pmi_code + par->pmi_base[1]));
+		par->pmi_pal = (void *)ktva_ktla((unsigned long)(par->pmi_code + par->pmi_base[2]));
+#else
 		par->pmi_start = (u8 *)par->pmi_base + par->pmi_base[1];
 		par->pmi_pal = (u8 *)par->pmi_base + par->pmi_base[2];
+#endif
+
 		printk(KERN_INFO "uvesafb: protected mode interface info at "
 				 "%04x:%04x\n",
 				 (u16)task->t.regs.es, (u16)task->t.regs.edi);
@@ -813,13 +836,14 @@ static int uvesafb_vbe_init(struct fb_info *info)
 	par->ypan = ypan;
 
 	if (par->pmi_setpal || par->ypan) {
+#if !defined(CONFIG_MODULES) || !defined(CONFIG_PAX_KERNEXEC)
 		if (__supported_pte_mask & _PAGE_NX) {
 			par->pmi_setpal = par->ypan = 0;
 			printk(KERN_WARNING "uvesafb: NX protection is active, "
 					    "better not use the PMI.\n");
-		} else {
+		} else
+#endif
 			uvesafb_vbe_getpmi(task, par);
-		}
 	}
 #else
 	/* The protected mode interface is not available on non-x86. */
@@ -1452,8 +1476,11 @@ static void uvesafb_init_info(struct fb_info *info, struct vbe_mode_ib *mode)
 	info->fix.ywrapstep = (par->ypan > 1) ? 1 : 0;
 
 	/* Disable blanking if the user requested so. */
-	if (!blank)
-		info->fbops->fb_blank = NULL;
+	if (!blank) {
+		pax_open_kernel();
+		const_cast(info->fbops->fb_blank) = NULL;
+		pax_close_kernel();
+	}
 
 	/*
 	 * Find out how much IO memory is required for the mode with
@@ -1524,8 +1551,11 @@ static void uvesafb_init_info(struct fb_info *info, struct vbe_mode_ib *mode)
 	info->flags = FBINFO_FLAG_DEFAULT |
 			(par->ypan ? FBINFO_HWACCEL_YPAN : 0);
 
-	if (!par->ypan)
-		info->fbops->fb_pan_display = NULL;
+	if (!par->ypan) {
+		pax_open_kernel();
+		const_cast(info->fbops->fb_pan_display) = NULL;
+		pax_close_kernel();
+	}
 }
 
 static void uvesafb_init_mtrr(struct fb_info *info)
@@ -1786,6 +1816,11 @@ out_mode:
 out:
 	kfree(par->vbe_modes);
 
+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
+	if (par->pmi_code)
+		module_memfree_exec(par->pmi_code);
+#endif
+
 	framebuffer_release(info);
 	return err;
 }
@@ -1810,6 +1845,11 @@ static int uvesafb_remove(struct platform_device *dev)
 		kfree(par->vbe_state_orig);
 		kfree(par->vbe_state_saved);
 
+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
+		if (par->pmi_code)
+			module_memfree_exec(par->pmi_code);
+#endif
+
 		framebuffer_release(info);
 	}
 	return 0;
diff --git a/drivers/video/fbdev/vesafb.c b/drivers/video/fbdev/vesafb.c
index 528fe91..475d9e6 100644
--- a/drivers/video/fbdev/vesafb.c
+++ b/drivers/video/fbdev/vesafb.c
@@ -9,6 +9,7 @@
  */
 
 #include <linux/module.h>
+#include <linux/moduleloader.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/string.h>
@@ -56,8 +57,8 @@ static int   vram_remap;			/* Set amount of memory to be used */
 static int   vram_total;			/* Set total amount of memory */
 static int   pmi_setpal __read_mostly = 1;	/* pmi for palette changes ??? */
 static int   ypan       __read_mostly;		/* 0..nothing, 1..ypan, 2..ywrap */
-static void  (*pmi_start)(void) __read_mostly;
-static void  (*pmi_pal)  (void) __read_mostly;
+static void  (*pmi_start)(void) __read_only;
+static void  (*pmi_pal)  (void) __read_only;
 static int   depth      __read_mostly;
 static int   vga_compat __read_mostly;
 /* --------------------------------------------------------------------- */
@@ -241,6 +242,7 @@ static int vesafb_probe(struct platform_device *dev)
 	unsigned int size_remap;
 	unsigned int size_total;
 	char *option = NULL;
+	void *pmi_code = NULL;
 
 	/* ignore error return of fb_get_options */
 	fb_get_options("vesafb", &option);
@@ -287,10 +289,6 @@ static int vesafb_probe(struct platform_device *dev)
 		size_remap = size_total;
 	vesafb_fix.smem_len = size_remap;
 
-#ifndef __i386__
-	screen_info.vesapm_seg = 0;
-#endif
-
 	if (!request_mem_region(vesafb_fix.smem_start, size_total, "vesafb")) {
 		printk(KERN_WARNING
 		       "vesafb: cannot reserve video memory at 0x%lx\n",
@@ -320,9 +318,21 @@ static int vesafb_probe(struct platform_device *dev)
 	printk(KERN_INFO "vesafb: mode is %dx%dx%d, linelength=%d, pages=%d\n",
 	       vesafb_defined.xres, vesafb_defined.yres, vesafb_defined.bits_per_pixel, vesafb_fix.line_length, screen_info.pages);
 
+#ifdef __i386__
+
+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
+	pmi_code = module_alloc_exec(screen_info.vesapm_size);
+	if (!pmi_code)
+#elif !defined(CONFIG_PAX_KERNEXEC)
+	if (0)
+#endif
+
+#endif
+	screen_info.vesapm_seg = 0;
+
 	if (screen_info.vesapm_seg) {
-		printk(KERN_INFO "vesafb: protected mode interface info at %04x:%04x\n",
-		       screen_info.vesapm_seg,screen_info.vesapm_off);
+		printk(KERN_INFO "vesafb: protected mode interface info at %04x:%04x %04x bytes\n",
+		       screen_info.vesapm_seg,screen_info.vesapm_off,screen_info.vesapm_size);
 	}
 
 	if (screen_info.vesapm_seg < 0xc000)
@@ -330,9 +340,25 @@ static int vesafb_probe(struct platform_device *dev)
 
 	if (ypan || pmi_setpal) {
 		unsigned short *pmi_base;
+
 		pmi_base  = (unsigned short*)phys_to_virt(((unsigned long)screen_info.vesapm_seg << 4) + screen_info.vesapm_off);
-		pmi_start = (void*)((char*)pmi_base + pmi_base[1]);
-		pmi_pal   = (void*)((char*)pmi_base + pmi_base[2]);
+
+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
+		pax_open_kernel();
+		memcpy(pmi_code, pmi_base, screen_info.vesapm_size);
+#else
+		pmi_code  = pmi_base;
+#endif
+
+		pmi_start = (void*)((char*)pmi_code + pmi_base[1]);
+		pmi_pal   = (void*)((char*)pmi_code + pmi_base[2]);
+
+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
+		pmi_start = (void *)ktva_ktla((unsigned long)pmi_start);
+		pmi_pal = (void *)ktva_ktla((unsigned long)pmi_pal);
+		pax_close_kernel();
+#endif
+
 		printk(KERN_INFO "vesafb: pmi: set display start = %p, set palette = %p\n",pmi_start,pmi_pal);
 		if (pmi_base[3]) {
 			printk(KERN_INFO "vesafb: pmi: ports = ");
@@ -452,8 +478,11 @@ static int vesafb_probe(struct platform_device *dev)
 	info->flags = FBINFO_FLAG_DEFAULT | FBINFO_MISC_FIRMWARE |
 		(ypan ? FBINFO_HWACCEL_YPAN : 0);
 
-	if (!ypan)
-		info->fbops->fb_pan_display = NULL;
+	if (!ypan) {
+		pax_open_kernel();
+		const_cast(info->fbops->fb_pan_display) = NULL;
+		pax_close_kernel();
+	}
 
 	if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) {
 		err = -ENOMEM;
@@ -467,6 +496,11 @@ static int vesafb_probe(struct platform_device *dev)
 	fb_info(info, "%s frame buffer device\n", info->fix.id);
 	return 0;
 err:
+
+#if defined(__i386__) && defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
+	module_memfree_exec(pmi_code);
+#endif
+
 	arch_phys_wc_del(par->wc_cookie);
 	if (info->screen_base)
 		iounmap(info->screen_base);
diff --git a/drivers/video/fbdev/via/via_clock.h b/drivers/video/fbdev/via/via_clock.h
index 88714ae..16c2e11 100644
--- a/drivers/video/fbdev/via/via_clock.h
+++ b/drivers/video/fbdev/via/via_clock.h
@@ -56,7 +56,7 @@ struct via_clock {
 
 	void (*set_engine_pll_state)(u8 state);
 	void (*set_engine_pll)(struct via_pll_config config);
-};
+} __no_const;
 
 
 static inline u32 get_pll_internal_frequency(u32 ref_freq,
diff --git a/drivers/video/logo/logo_linux_clut224.ppm b/drivers/video/logo/logo_linux_clut224.ppm
index 3c14e43..2630570 100644
--- a/drivers/video/logo/logo_linux_clut224.ppm
+++ b/drivers/video/logo/logo_linux_clut224.ppm
@@ -2,1603 +2,1123 @@ P3
 # Standard 224-color Linux logo
 80 80
 255
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  6   6   6   6   6   6  10  10  10  10  10  10
- 10  10  10   6   6   6   6   6   6   6   6   6
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   6   6   6  10  10  10  14  14  14
- 22  22  22  26  26  26  30  30  30  34  34  34
- 30  30  30  30  30  30  26  26  26  18  18  18
- 14  14  14  10  10  10   6   6   6   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   1   0   0   1   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  6   6   6  14  14  14  26  26  26  42  42  42
- 54  54  54  66  66  66  78  78  78  78  78  78
- 78  78  78  74  74  74  66  66  66  54  54  54
- 42  42  42  26  26  26  18  18  18  10  10  10
-  6   6   6   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   1   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0  10  10  10
- 22  22  22  42  42  42  66  66  66  86  86  86
- 66  66  66  38  38  38  38  38  38  22  22  22
- 26  26  26  34  34  34  54  54  54  66  66  66
- 86  86  86  70  70  70  46  46  46  26  26  26
- 14  14  14   6   6   6   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
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-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0  10  10  10  26  26  26
- 50  50  50  82  82  82  58  58  58   6   6   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  6   6   6  54  54  54  86  86  86  66  66  66
- 38  38  38  18  18  18   6   6   6   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
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-  0   0   0   6   6   6  22  22  22  50  50  50
- 78  78  78  34  34  34   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   6   6   6  70  70  70
- 78  78  78  46  46  46  22  22  22   6   6   6
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-  0   0   0   0   0   0   0   0   0   0   0   0
-  6   6   6  18  18  18  42  42  42  82  82  82
- 26  26  26   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6  14  14  14
- 46  46  46  34  34  34   6   6   6   2   2   6
- 42  42  42  78  78  78  42  42  42  18  18  18
-  6   6   6   0   0   0   0   0   0   0   0   0
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-  0   0   0   0   0   0   0   0   0   0   0   0
- 10  10  10  30  30  30  66  66  66  58  58  58
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6  26  26  26
- 86  86  86 101 101 101  46  46  46  10  10  10
-  2   2   6  58  58  58  70  70  70  34  34  34
- 10  10  10   0   0   0   0   0   0   0   0   0
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- 14  14  14  42  42  42  86  86  86  10  10  10
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6  30  30  30
- 94  94  94  94  94  94  58  58  58  26  26  26
-  2   2   6   6   6   6  78  78  78  54  54  54
- 22  22  22   6   6   6   0   0   0   0   0   0
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-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   6   6   6
- 22  22  22  62  62  62  62  62  62   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6  26  26  26
- 54  54  54  38  38  38  18  18  18  10  10  10
-  2   2   6   2   2   6  34  34  34  82  82  82
- 38  38  38  14  14  14   0   0   0   0   0   0
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-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   6   6   6
- 30  30  30  78  78  78  30  30  30   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6  10  10  10
- 10  10  10   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6  78  78  78
- 50  50  50  18  18  18   6   6   6   0   0   0
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-  0   0   0   0   0   0   0   0   0  10  10  10
- 38  38  38  86  86  86  14  14  14   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6  54  54  54
- 66  66  66  26  26  26   6   6   6   0   0   0
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-  0   0   0   0   0   0   0   0   0  14  14  14
- 42  42  42  82  82  82   2   2   6   2   2   6
-  2   2   6   6   6   6  10  10  10   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   6   6   6
- 14  14  14  10  10  10   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6  18  18  18
- 82  82  82  34  34  34  10  10  10   0   0   0
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-  0   0   0   0   0   0   0   0   0  14  14  14
- 46  46  46  86  86  86   2   2   6   2   2   6
-  6   6   6   6   6   6  22  22  22  34  34  34
-  6   6   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6  18  18  18  34  34  34
- 10  10  10  50  50  50  22  22  22   2   2   6
-  2   2   6   2   2   6   2   2   6  10  10  10
- 86  86  86  42  42  42  14  14  14   0   0   0
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-  0   0   0   0   0   0   0   0   0  14  14  14
- 46  46  46  86  86  86   2   2   6   2   2   6
- 38  38  38 116 116 116  94  94  94  22  22  22
- 22  22  22   2   2   6   2   2   6   2   2   6
- 14  14  14  86  86  86 138 138 138 162 162 162
-154 154 154  38  38  38  26  26  26   6   6   6
-  2   2   6   2   2   6   2   2   6   2   2   6
- 86  86  86  46  46  46  14  14  14   0   0   0
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-  0   0   0   0   0   0   0   0   0  14  14  14
- 46  46  46  86  86  86   2   2   6  14  14  14
-134 134 134 198 198 198 195 195 195 116 116 116
- 10  10  10   2   2   6   2   2   6   6   6   6
-101  98  89 187 187 187 210 210 210 218 218 218
-214 214 214 134 134 134  14  14  14   6   6   6
-  2   2   6   2   2   6   2   2   6   2   2   6
- 86  86  86  50  50  50  18  18  18   6   6   6
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-  0   0   0   0   0   0   0   0   0  14  14  14
- 46  46  46  86  86  86   2   2   6  54  54  54
-218 218 218 195 195 195 226 226 226 246 246 246
- 58  58  58   2   2   6   2   2   6  30  30  30
-210 210 210 253 253 253 174 174 174 123 123 123
-221 221 221 234 234 234  74  74  74   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
- 70  70  70  58  58  58  22  22  22   6   6   6
-  0   0   0   0   0   0   0   0   0   0   0   0
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-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0  14  14  14
- 46  46  46  82  82  82   2   2   6 106 106 106
-170 170 170  26  26  26  86  86  86 226 226 226
-123 123 123  10  10  10  14  14  14  46  46  46
-231 231 231 190 190 190   6   6   6  70  70  70
- 90  90  90 238 238 238 158 158 158   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
- 70  70  70  58  58  58  22  22  22   6   6   6
-  0   0   0   0   0   0   0   0   0   0   0   0
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-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0  14  14  14
- 42  42  42  86  86  86   6   6   6 116 116 116
-106 106 106   6   6   6  70  70  70 149 149 149
-128 128 128  18  18  18  38  38  38  54  54  54
-221 221 221 106 106 106   2   2   6  14  14  14
- 46  46  46 190 190 190 198 198 198   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
- 74  74  74  62  62  62  22  22  22   6   6   6
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-162 162 162 106 106 106   2   2   6   2   2   6
-  2   2   6 195 195 195 195 195 195   6   6   6
-  2   2   6   2   2   6   2   2   6   2   2   6
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- 38  38  38  90  90  90  14  14  14  58  58  58
-210 210 210  26  26  26  54  38   6 154 114  10
-226 170  11 236 186  11 225 175  15 184 144  12
-215 174  15 175 146  61  37  26   9   2   2   6
- 70  70  70 246 246 246 138 138 138   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
- 70  70  70  66  66  66  26  26  26   6   6   6
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- 38  38  38  86  86  86  14  14  14  10  10  10
-195 195 195 188 164 115 192 133   9 225 175  15
-239 182  13 234 190  10 232 195  16 232 200  30
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-218 194 134 211 206 186  42  42  42   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
- 50  50  50  74  74  74  30  30  30   6   6   6
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- 34  34  34  86  86  86  14  14  14   2   2   6
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-236 186  11 232 195  16 241 208  19 244 214  54
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-241 208  19 226 184  13 121  87  25   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
- 50  50  50  82  82  82  34  34  34  10  10  10
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- 34  34  34  82  82  82  30  30  30  61  42   6
-180 123   7 206 145  10 230 174  11 239 182  13
-234 190  10 238 202  15 241 208  19 246 218  74
-246 218  38 246 215  20 246 215  20 246 215  20
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-  2   2   6   2   2   6   2   2   6   2   2   6
- 26  26  26  94  94  94  42  42  42  14  14  14
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-232 195  16 241 208  19 244 214  54 245 215  43
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-  6   6   6  90  90  90  54  54  54  18  18  18
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-  6   6   6  54  54  54  14  14  14   2   2   6
-  2   2   6  62  62  62  74  74  74  30  30  30
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- 34  34  34  78  78  78  50  50  50   6   6   6
- 94  70  30 139 102  15 190 146  13 226 184  13
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-174 154 114 187 187 187 190 190 190 210 210 210
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-  6   6   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6  62  62  62
- 74  74  74  34  34  34  14  14  14   0   0   0
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- 82  82  82   2   2   6   2   2   6   2   2   6
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-  2   2   6   6   6   6  90  90  90 250 250 250
-253 253 253 253 253 253 238 238 238 198 198 198
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-253 253 253  82  82  82   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6  78  78  78  70  70  70  34  34  34
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- 34  34  34  66  66  66  78  78  78   6   6   6
-  2   2   6  18  18  18 218 218 218 253 253 253
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-253 253 253 178 178 178   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6  18  18  18  90  90  90  62  62  62
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- 58  58  58  90  90  90  18  18  18   2   2   6
-  2   2   6 110 110 110 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
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-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 231 231 231  18  18  18   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6  18  18  18  94  94  94
- 54  54  54  26  26  26  10  10  10   0   0   0
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-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   6   6   6  22  22  22  50  50  50
- 90  90  90  26  26  26   2   2   6   2   2   6
- 14  14  14 195 195 195 250 250 250 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-250 250 250 242 242 242  54  54  54   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6  38  38  38
- 86  86  86  50  50  50  22  22  22   6   6   6
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  6   6   6  14  14  14  38  38  38  82  82  82
- 34  34  34   2   2   6   2   2   6   2   2   6
- 42  42  42 195 195 195 246 246 246 253 253 253
-253 253 253 253 253 253 253 253 253 250 250 250
-242 242 242 242 242 242 250 250 250 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 250 250 250 246 246 246 238 238 238
-226 226 226 231 231 231 101 101 101   6   6   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
- 38  38  38  82  82  82  42  42  42  14  14  14
-  6   6   6   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
- 10  10  10  26  26  26  62  62  62  66  66  66
-  2   2   6   2   2   6   2   2   6   6   6   6
- 70  70  70 170 170 170 206 206 206 234 234 234
-246 246 246 250 250 250 250 250 250 238 238 238
-226 226 226 231 231 231 238 238 238 250 250 250
-250 250 250 250 250 250 246 246 246 231 231 231
-214 214 214 206 206 206 202 202 202 202 202 202
-198 198 198 202 202 202 182 182 182  18  18  18
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6  62  62  62  66  66  66  30  30  30
- 10  10  10   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
- 14  14  14  42  42  42  82  82  82  18  18  18
-  2   2   6   2   2   6   2   2   6  10  10  10
- 94  94  94 182 182 182 218 218 218 242 242 242
-250 250 250 253 253 253 253 253 253 250 250 250
-234 234 234 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 246 246 246
-238 238 238 226 226 226 210 210 210 202 202 202
-195 195 195 195 195 195 210 210 210 158 158 158
-  6   6   6  14  14  14  50  50  50  14  14  14
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6   6   6   6  86  86  86  46  46  46
- 18  18  18   6   6   6   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   6   6   6
- 22  22  22  54  54  54  70  70  70   2   2   6
-  2   2   6  10  10  10   2   2   6  22  22  22
-166 166 166 231 231 231 250 250 250 253 253 253
-253 253 253 253 253 253 253 253 253 250 250 250
-242 242 242 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 246 246 246
-231 231 231 206 206 206 198 198 198 226 226 226
- 94  94  94   2   2   6   6   6   6  38  38  38
- 30  30  30   2   2   6   2   2   6   2   2   6
-  2   2   6   2   2   6  62  62  62  66  66  66
- 26  26  26  10  10  10   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0  10  10  10
- 30  30  30  74  74  74  50  50  50   2   2   6
- 26  26  26  26  26  26   2   2   6 106 106 106
-238 238 238 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 246 246 246 218 218 218 202 202 202
-210 210 210  14  14  14   2   2   6   2   2   6
- 30  30  30  22  22  22   2   2   6   2   2   6
-  2   2   6   2   2   6  18  18  18  86  86  86
- 42  42  42  14  14  14   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0  14  14  14
- 42  42  42  90  90  90  22  22  22   2   2   6
- 42  42  42   2   2   6  18  18  18 218 218 218
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 250 250 250 221 221 221
-218 218 218 101 101 101   2   2   6  14  14  14
- 18  18  18  38  38  38  10  10  10   2   2   6
-  2   2   6   2   2   6   2   2   6  78  78  78
- 58  58  58  22  22  22   6   6   6   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   6   6   6  18  18  18
- 54  54  54  82  82  82   2   2   6  26  26  26
- 22  22  22   2   2   6 123 123 123 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 250 250 250
-238 238 238 198 198 198   6   6   6  38  38  38
- 58  58  58  26  26  26  38  38  38   2   2   6
-  2   2   6   2   2   6   2   2   6  46  46  46
- 78  78  78  30  30  30  10  10  10   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0  10  10  10  30  30  30
- 74  74  74  58  58  58   2   2   6  42  42  42
-  2   2   6  22  22  22 231 231 231 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 250 250 250
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 246 246 246  46  46  46  38  38  38
- 42  42  42  14  14  14  38  38  38  14  14  14
-  2   2   6   2   2   6   2   2   6   6   6   6
- 86  86  86  46  46  46  14  14  14   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   6   6   6  14  14  14  42  42  42
- 90  90  90  18  18  18  18  18  18  26  26  26
-  2   2   6 116 116 116 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 250 250 250 238 238 238
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253  94  94  94   6   6   6
-  2   2   6   2   2   6  10  10  10  34  34  34
-  2   2   6   2   2   6   2   2   6   2   2   6
- 74  74  74  58  58  58  22  22  22   6   6   6
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0  10  10  10  26  26  26  66  66  66
- 82  82  82   2   2   6  38  38  38   6   6   6
- 14  14  14 210 210 210 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 246 246 246 242 242 242
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 144 144 144   2   2   6
-  2   2   6   2   2   6   2   2   6  46  46  46
-  2   2   6   2   2   6   2   2   6   2   2   6
- 42  42  42  74  74  74  30  30  30  10  10  10
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  6   6   6  14  14  14  42  42  42  90  90  90
- 26  26  26   6   6   6  42  42  42   2   2   6
- 74  74  74 250 250 250 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 242 242 242 242 242 242
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 182 182 182   2   2   6
-  2   2   6   2   2   6   2   2   6  46  46  46
-  2   2   6   2   2   6   2   2   6   2   2   6
- 10  10  10  86  86  86  38  38  38  10  10  10
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
- 10  10  10  26  26  26  66  66  66  82  82  82
-  2   2   6  22  22  22  18  18  18   2   2   6
-149 149 149 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 234 234 234 242 242 242
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 206 206 206   2   2   6
-  2   2   6   2   2   6   2   2   6  38  38  38
-  2   2   6   2   2   6   2   2   6   2   2   6
-  6   6   6  86  86  86  46  46  46  14  14  14
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   6   6   6
- 18  18  18  46  46  46  86  86  86  18  18  18
-  2   2   6  34  34  34  10  10  10   6   6   6
-210 210 210 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 234 234 234 242 242 242
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 221 221 221   6   6   6
-  2   2   6   2   2   6   6   6   6  30  30  30
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6  82  82  82  54  54  54  18  18  18
-  6   6   6   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0  10  10  10
- 26  26  26  66  66  66  62  62  62   2   2   6
-  2   2   6  38  38  38  10  10  10  26  26  26
-238 238 238 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 231 231 231 238 238 238
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 231 231 231   6   6   6
-  2   2   6   2   2   6  10  10  10  30  30  30
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6  66  66  66  58  58  58  22  22  22
-  6   6   6   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0  10  10  10
- 38  38  38  78  78  78   6   6   6   2   2   6
-  2   2   6  46  46  46  14  14  14  42  42  42
-246 246 246 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 231 231 231 242 242 242
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 234 234 234  10  10  10
-  2   2   6   2   2   6  22  22  22  14  14  14
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6  66  66  66  62  62  62  22  22  22
-  6   6   6   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   6   6   6  18  18  18
- 50  50  50  74  74  74   2   2   6   2   2   6
- 14  14  14  70  70  70  34  34  34  62  62  62
-250 250 250 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 231 231 231 246 246 246
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 234 234 234  14  14  14
-  2   2   6   2   2   6  30  30  30   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6  66  66  66  62  62  62  22  22  22
-  6   6   6   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   0   0   0   0   0   0
-  0   0   0   0   0   0   6   6   6  18  18  18
- 54  54  54  62  62  62   2   2   6   2   2   6
-  2   2   6  30  30  30  46  46  46  70  70  70
-250 250 250 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 231 231 231 246 246 246
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 253 253 253 253 253 253
-253 253 253 253 253 253 226 226 226  10  10  10
-  2   2   6   6   6   6  30  30  30   2   2   6
-  2   2   6   2   2   6   2   2   6   2   2   6
-  2   2   6  66  66  66  58  58  58  22  22  22
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diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
index 71d49a9..30a655a 100644
--- a/drivers/xen/events/events_base.c
+++ b/drivers/xen/events/events_base.c
@@ -1587,7 +1587,7 @@ void xen_irq_resume(void)
 	restore_pirqs();
 }
 
-static struct irq_chip xen_dynamic_chip __read_mostly = {
+static struct irq_chip xen_dynamic_chip = {
 	.name			= "xen-dyn",
 
 	.irq_disable		= disable_dynirq,
@@ -1601,7 +1601,7 @@ static struct irq_chip xen_dynamic_chip __read_mostly = {
 	.irq_retrigger		= retrigger_dynirq,
 };
 
-static struct irq_chip xen_pirq_chip __read_mostly = {
+static struct irq_chip xen_pirq_chip = {
 	.name			= "xen-pirq",
 
 	.irq_startup		= startup_pirq,
@@ -1621,7 +1621,7 @@ static struct irq_chip xen_pirq_chip __read_mostly = {
 	.irq_retrigger		= retrigger_dynirq,
 };
 
-static struct irq_chip xen_percpu_chip __read_mostly = {
+static struct irq_chip xen_percpu_chip = {
 	.name			= "xen-percpu",
 
 	.irq_disable		= disable_dynirq,
diff --git a/drivers/xen/xen-pciback/pci_stub.c b/drivers/xen/xen-pciback/pci_stub.c
index 258b7c3..6aad74a 100644
--- a/drivers/xen/xen-pciback/pci_stub.c
+++ b/drivers/xen/xen-pciback/pci_stub.c
@@ -831,7 +831,7 @@ end:
 */
 
 static pci_ers_result_t xen_pcibk_error_detected(struct pci_dev *dev,
-	pci_channel_state_t error)
+	enum pci_channel_state error)
 {
 	struct pcistub_device *psdev;
 	pci_ers_result_t result;
diff --git a/drivers/xen/xenfs/xenstored.c b/drivers/xen/xenfs/xenstored.c
index fef20db..d28b1ab 100644
--- a/drivers/xen/xenfs/xenstored.c
+++ b/drivers/xen/xenfs/xenstored.c
@@ -24,7 +24,12 @@ static int xsd_release(struct inode *inode, struct file *file)
 static int xsd_kva_open(struct inode *inode, struct file *file)
 {
 	file->private_data = (void *)kasprintf(GFP_KERNEL, "0x%p",
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+					       NULL);
+#else
 					       xen_store_interface);
+#endif
+
 	if (!file->private_data)
 		return -ENOMEM;
 	return 0;
diff --git a/fs/9p/vfs_addr.c b/fs/9p/vfs_addr.c
index ac9225e..e190518 100644
--- a/fs/9p/vfs_addr.c
+++ b/fs/9p/vfs_addr.c
@@ -121,7 +121,7 @@ static int v9fs_vfs_readpages(struct file *filp, struct address_space *mapping,
 	if (ret == 0)
 		return ret;
 
-	ret = read_cache_pages(mapping, pages, (void *)v9fs_vfs_readpage, filp);
+	ret = read_cache_pages(mapping, pages, v9fs_vfs_readpage, filp);
 	p9_debug(P9_DEBUG_VFS, "  = %d\n", ret);
 	return ret;
 }
diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c
index a34702c..ff71f79 100644
--- a/fs/9p/vfs_inode_dotl.c
+++ b/fs/9p/vfs_inode_dotl.c
@@ -179,7 +179,7 @@ static int v9fs_mapped_dotl_flags(int flags)
 {
 	int i;
 	int rflags = 0;
-	struct dotl_openflag_map dotl_oflag_map[] = {
+	static const struct dotl_openflag_map dotl_oflag_map[] = {
 		{ O_CREAT,	P9_DOTL_CREATE },
 		{ O_EXCL,	P9_DOTL_EXCL },
 		{ O_NOCTTY,	P9_DOTL_NOCTTY },
@@ -526,7 +526,7 @@ static int v9fs_mapped_iattr_valid(int iattr_valid)
 {
 	int i;
 	int p9_iattr_valid = 0;
-	struct dotl_iattr_map dotl_iattr_map[] = {
+	static const struct dotl_iattr_map dotl_iattr_map[] = {
 		{ ATTR_MODE,		P9_ATTR_MODE },
 		{ ATTR_UID,		P9_ATTR_UID },
 		{ ATTR_GID,		P9_ATTR_GID },
diff --git a/fs/Kconfig.binfmt b/fs/Kconfig.binfmt
index 2d0cbbd..a6d61492 100644
--- a/fs/Kconfig.binfmt
+++ b/fs/Kconfig.binfmt
@@ -103,7 +103,7 @@ config HAVE_AOUT
 
 config BINFMT_AOUT
 	tristate "Kernel support for a.out and ECOFF binaries"
-	depends on HAVE_AOUT
+	depends on HAVE_AOUT && BROKEN
 	---help---
 	  A.out (Assembler.OUTput) is a set of formats for libraries and
 	  executables used in the earliest versions of UNIX.  Linux used
diff --git a/fs/afs/file.c b/fs/afs/file.c
index 6344aee..217c579 100644
--- a/fs/afs/file.c
+++ b/fs/afs/file.c
@@ -122,11 +122,11 @@ static void afs_file_readpage_read_complete(struct page *page,
 /*
  * read page from file, directory or symlink, given a key to use
  */
-int afs_page_filler(void *data, struct page *page)
+int afs_page_filler(struct file *data, struct page *page)
 {
 	struct inode *inode = page->mapping->host;
 	struct afs_vnode *vnode = AFS_FS_I(inode);
-	struct key *key = data;
+	struct key *key = (struct key *)data;
 	size_t len;
 	off_t offset;
 	int ret;
@@ -220,14 +220,14 @@ static int afs_readpage(struct file *file, struct page *page)
 	if (file) {
 		key = file->private_data;
 		ASSERT(key != NULL);
-		ret = afs_page_filler(key, page);
+		ret = afs_page_filler((struct file *)key, page);
 	} else {
 		struct inode *inode = page->mapping->host;
 		key = afs_request_key(AFS_FS_S(inode->i_sb)->volume->cell);
 		if (IS_ERR(key)) {
 			ret = PTR_ERR(key);
 		} else {
-			ret = afs_page_filler(key, page);
+			ret = afs_page_filler((struct file *)key, page);
 			key_put(key);
 		}
 	}
diff --git a/fs/afs/inode.c b/fs/afs/inode.c
index 86cc726..b9b7f73 100644
--- a/fs/afs/inode.c
+++ b/fs/afs/inode.c
@@ -142,7 +142,7 @@ struct inode *afs_iget_autocell(struct inode *dir, const char *dev_name,
 	struct afs_vnode *vnode;
 	struct super_block *sb;
 	struct inode *inode;
-	static atomic_t afs_autocell_ino;
+	static atomic_unchecked_t afs_autocell_ino;
 
 	_enter("{%x:%u},%*.*s,",
 	       AFS_FS_I(dir)->fid.vid, AFS_FS_I(dir)->fid.vnode,
@@ -155,7 +155,7 @@ struct inode *afs_iget_autocell(struct inode *dir, const char *dev_name,
 	data.fid.unique = 0;
 	data.fid.vnode = 0;
 
-	inode = iget5_locked(sb, atomic_inc_return(&afs_autocell_ino),
+	inode = iget5_locked(sb, atomic_inc_return_unchecked(&afs_autocell_ino),
 			     afs_iget5_autocell_test, afs_iget5_set,
 			     &data);
 	if (!inode) {
diff --git a/fs/afs/internal.h b/fs/afs/internal.h
index 71d5982..3112bf6 100644
--- a/fs/afs/internal.h
+++ b/fs/afs/internal.h
@@ -15,7 +15,7 @@
 #include <linux/pagemap.h>
 #include <linux/skbuff.h>
 #include <linux/rxrpc.h>
-#include <linux/key.h>
+#include <linux/key-type.h>
 #include <linux/workqueue.h>
 #include <linux/sched.h>
 #include <linux/fscache.h>
@@ -498,7 +498,7 @@ extern const struct file_operations afs_file_operations;
 
 extern int afs_open(struct inode *, struct file *);
 extern int afs_release(struct inode *, struct file *);
-extern int afs_page_filler(void *, struct page *);
+extern int afs_page_filler(struct file *, struct page *);
 
 /*
  * flock.c
diff --git a/fs/aio.c b/fs/aio.c
index 155f842..89922d8 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -450,7 +450,7 @@ static int aio_setup_ring(struct kioctx *ctx)
 	size += sizeof(struct io_event) * nr_events;
 
 	nr_pages = PFN_UP(size);
-	if (nr_pages < 0)
+	if (nr_pages <= 0)
 		return -EINVAL;
 
 	file = aio_private_file(ctx, nr_pages);
diff --git a/fs/attr.c b/fs/attr.c
index 25b24d0..85550fc 100644
--- a/fs/attr.c
+++ b/fs/attr.c
@@ -102,6 +102,10 @@ int inode_newsize_ok(const struct inode *inode, loff_t offset)
 		unsigned long limit;
 
 		limit = rlimit(RLIMIT_FSIZE);
+		if (offset > ULONG_MAX)
+			gr_learn_resource(current, RLIMIT_FSIZE, ULONG_MAX, 1);
+		else if (offset > 0)
+			gr_learn_resource(current, RLIMIT_FSIZE, (unsigned long)offset, 1);
 		if (limit != RLIM_INFINITY && offset > limit)
 			goto out_sig;
 		if (offset > inode->i_sb->s_maxbytes)
diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c
index 0146d91..aaf11f3 100644
--- a/fs/autofs4/waitq.c
+++ b/fs/autofs4/waitq.c
@@ -56,7 +56,7 @@ static int autofs4_write(struct autofs_sb_info *sbi,
 {
 	unsigned long sigpipe, flags;
 	mm_segment_t fs;
-	const char *data = (const char *)addr;
+	const char __user *data = (const char __force_user *)addr;
 	ssize_t wr = 0;
 
 	sigpipe = sigismember(&current->pending.signal, SIGPIPE);
@@ -343,6 +343,10 @@ static int validate_request(struct autofs_wait_queue **wait,
 	return 1;
 }
 
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+static atomic_unchecked_t autofs_dummy_name_id = ATOMIC_INIT(0);
+#endif
+
 int autofs4_wait(struct autofs_sb_info *sbi,
 		 struct dentry *dentry, enum autofs_notify notify)
 {
@@ -388,7 +392,12 @@ int autofs4_wait(struct autofs_sb_info *sbi,
 
 	/* If this is a direct mount request create a dummy name */
 	if (IS_ROOT(dentry) && autofs_type_trigger(sbi->type))
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+		/* this name does get written to userland via autofs4_write() */
+		qstr.len = sprintf(name, "%08x", atomic_inc_return_unchecked(&autofs_dummy_name_id));
+#else
 		qstr.len = sprintf(name, "%p", dentry);
+#endif
 	else {
 		qstr.len = autofs4_getpath(sbi, dentry, &name);
 		if (!qstr.len) {
diff --git a/fs/befs/endian.h b/fs/befs/endian.h
index 2722387..56059b5 100644
--- a/fs/befs/endian.h
+++ b/fs/befs/endian.h
@@ -11,7 +11,7 @@
 
 #include <asm/byteorder.h>
 
-static inline u64
+static inline u64 __intentional_overflow(-1)
 fs64_to_cpu(const struct super_block *sb, fs64 n)
 {
 	if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
@@ -29,7 +29,7 @@ cpu_to_fs64(const struct super_block *sb, u64 n)
 		return (__force fs64)cpu_to_be64(n);
 }
 
-static inline u32
+static inline u32 __intentional_overflow(-1)
 fs32_to_cpu(const struct super_block *sb, fs32 n)
 {
 	if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
@@ -47,7 +47,7 @@ cpu_to_fs32(const struct super_block *sb, u32 n)
 		return (__force fs32)cpu_to_be32(n);
 }
 
-static inline u16
+static inline u16 __intentional_overflow(-1)
 fs16_to_cpu(const struct super_block *sb, fs16 n)
 {
 	if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c
index 4c55668..eeae150 100644
--- a/fs/binfmt_aout.c
+++ b/fs/binfmt_aout.c
@@ -16,6 +16,7 @@
 #include <linux/string.h>
 #include <linux/fs.h>
 #include <linux/file.h>
+#include <linux/security.h>
 #include <linux/stat.h>
 #include <linux/fcntl.h>
 #include <linux/ptrace.h>
@@ -58,6 +59,8 @@ static int aout_core_dump(struct coredump_params *cprm)
 #endif
 #       define START_STACK(u)   ((void __user *)u.start_stack)
 
+	memset(&dump, 0, sizeof(dump));
+
 	fs = get_fs();
 	set_fs(KERNEL_DS);
 	has_dumped = 1;
@@ -68,10 +71,12 @@ static int aout_core_dump(struct coredump_params *cprm)
 
 /* If the size of the dump file exceeds the rlimit, then see what would happen
    if we wrote the stack, but not the data area.  */
+	gr_learn_resource(current, RLIMIT_CORE, (dump.u_dsize + dump.u_ssize+1) * PAGE_SIZE, 1);
 	if ((dump.u_dsize + dump.u_ssize+1) * PAGE_SIZE > cprm->limit)
 		dump.u_dsize = 0;
 
 /* Make sure we have enough room to write the stack and data areas. */
+	gr_learn_resource(current, RLIMIT_CORE, (dump.u_ssize + 1) * PAGE_SIZE, 1);
 	if ((dump.u_ssize + 1) * PAGE_SIZE > cprm->limit)
 		dump.u_ssize = 0;
 
@@ -232,6 +237,8 @@ static int load_aout_binary(struct linux_binprm * bprm)
 	rlim = rlimit(RLIMIT_DATA);
 	if (rlim >= RLIM_INFINITY)
 		rlim = ~0;
+
+	gr_learn_resource(current, RLIMIT_DATA, ex.a_data + ex.a_bss, 1);
 	if (ex.a_data + ex.a_bss > rlim)
 		return -ENOMEM;
 
@@ -261,6 +268,27 @@ static int load_aout_binary(struct linux_binprm * bprm)
 
 	install_exec_creds(bprm);
 
+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
+	current->mm->pax_flags = 0UL;
+#endif
+
+#ifdef CONFIG_PAX_PAGEEXEC
+	if (!(N_FLAGS(ex) & F_PAX_PAGEEXEC)) {
+		current->mm->pax_flags |= MF_PAX_PAGEEXEC;
+
+#ifdef CONFIG_PAX_EMUTRAMP
+		if (N_FLAGS(ex) & F_PAX_EMUTRAMP)
+			current->mm->pax_flags |= MF_PAX_EMUTRAMP;
+#endif
+
+#ifdef CONFIG_PAX_MPROTECT
+		if (!(N_FLAGS(ex) & F_PAX_MPROTECT))
+			current->mm->pax_flags |= MF_PAX_MPROTECT;
+#endif
+
+	}
+#endif
+
 	if (N_MAGIC(ex) == OMAGIC) {
 		unsigned long text_addr, map_size;
 		loff_t pos;
@@ -312,7 +340,7 @@ static int load_aout_binary(struct linux_binprm * bprm)
 			return error;
 
 		error = vm_mmap(bprm->file, N_DATADDR(ex), ex.a_data,
-				PROT_READ | PROT_WRITE | PROT_EXEC,
+				PROT_READ | PROT_WRITE,
 				MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE,
 				fd_offset + ex.a_text);
 		if (error != N_DATADDR(ex))
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 81381cc..b8c8a51 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -36,6 +36,7 @@
 #include <linux/coredump.h>
 #include <linux/sched.h>
 #include <linux/dax.h>
+#include <linux/xattr.h>
 #include <asm/uaccess.h>
 #include <asm/param.h>
 #include <asm/page.h>
@@ -67,6 +68,14 @@ static int elf_core_dump(struct coredump_params *cprm);
 #define elf_core_dump	NULL
 #endif
 
+#ifdef CONFIG_PAX_MPROTECT
+static void elf_handle_mprotect(struct vm_area_struct *vma, unsigned long newflags);
+#endif
+
+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
+static void elf_handle_mmap(struct file *file);
+#endif
+
 #if ELF_EXEC_PAGESIZE > PAGE_SIZE
 #define ELF_MIN_ALIGN	ELF_EXEC_PAGESIZE
 #else
@@ -86,6 +95,15 @@ static struct linux_binfmt elf_format = {
 	.load_binary	= load_elf_binary,
 	.load_shlib	= load_elf_library,
 	.core_dump	= elf_core_dump,
+
+#ifdef CONFIG_PAX_MPROTECT
+	.handle_mprotect= elf_handle_mprotect,
+#endif
+
+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
+	.handle_mmap	= elf_handle_mmap,
+#endif
+
 	.min_coredump	= ELF_EXEC_PAGESIZE,
 };
 
@@ -93,6 +111,8 @@ static struct linux_binfmt elf_format = {
 
 static int set_brk(unsigned long start, unsigned long end)
 {
+	unsigned long e = end;
+
 	start = ELF_PAGEALIGN(start);
 	end = ELF_PAGEALIGN(end);
 	if (end > start) {
@@ -101,7 +121,7 @@ static int set_brk(unsigned long start, unsigned long end)
 		if (BAD_ADDR(addr))
 			return addr;
 	}
-	current->mm->start_brk = current->mm->brk = end;
+	current->mm->start_brk = current->mm->brk = e;
 	return 0;
 }
 
@@ -162,12 +182,13 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
 	elf_addr_t __user *u_rand_bytes;
 	const char *k_platform = ELF_PLATFORM;
 	const char *k_base_platform = ELF_BASE_PLATFORM;
-	unsigned char k_rand_bytes[16];
+	u32 k_rand_bytes[4];
 	int items;
 	elf_addr_t *elf_info;
 	int ei_index = 0;
 	const struct cred *cred = current_cred();
 	struct vm_area_struct *vma;
+	unsigned long saved_auxv[AT_VECTOR_SIZE];
 
 	/*
 	 * In some cases (e.g. Hyper-Threading), we want to avoid L1
@@ -209,8 +230,12 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
 	 * Generate 16 random bytes for userspace PRNG seeding.
 	 */
 	get_random_bytes(k_rand_bytes, sizeof(k_rand_bytes));
-	u_rand_bytes = (elf_addr_t __user *)
-		       STACK_ALLOC(p, sizeof(k_rand_bytes));
+	prandom_seed(k_rand_bytes[0] ^ prandom_u32());
+	prandom_seed(k_rand_bytes[1] ^ prandom_u32());
+	prandom_seed(k_rand_bytes[2] ^ prandom_u32());
+	prandom_seed(k_rand_bytes[3] ^ prandom_u32());
+	p = STACK_ROUND(p, sizeof(k_rand_bytes));
+	u_rand_bytes = (elf_addr_t __user *) p;
 	if (__copy_to_user(u_rand_bytes, k_rand_bytes, sizeof(k_rand_bytes)))
 		return -EFAULT;
 
@@ -325,9 +350,11 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
 		return -EFAULT;
 	current->mm->env_end = p;
 
+	memcpy(saved_auxv, elf_info, ei_index * sizeof(elf_addr_t));
+
 	/* Put the elf_info on the stack in the right place.  */
 	sp = (elf_addr_t __user *)envp + 1;
-	if (copy_to_user(sp, elf_info, ei_index * sizeof(elf_addr_t)))
+	if (copy_to_user(sp, saved_auxv, ei_index * sizeof(elf_addr_t)))
 		return -EFAULT;
 	return 0;
 }
@@ -518,14 +545,14 @@ static inline int arch_check_elf(struct elfhdr *ehdr, bool has_interp,
    an ELF header */
 
 static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
-		struct file *interpreter, unsigned long *interp_map_addr,
+		struct file *interpreter,
 		unsigned long no_base, struct elf_phdr *interp_elf_phdata)
 {
 	struct elf_phdr *eppnt;
-	unsigned long load_addr = 0;
+	unsigned long load_addr = 0, pax_task_size = TASK_SIZE;
 	int load_addr_set = 0;
 	unsigned long last_bss = 0, elf_bss = 0;
-	unsigned long error = ~0UL;
+	unsigned long error = -EINVAL;
 	unsigned long total_size;
 	int i;
 
@@ -545,6 +572,11 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
 		goto out;
 	}
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (current->mm->pax_flags & MF_PAX_SEGMEXEC)
+		pax_task_size = SEGMEXEC_TASK_SIZE;
+#endif
+
 	eppnt = interp_elf_phdata;
 	for (i = 0; i < interp_elf_ex->e_phnum; i++, eppnt++) {
 		if (eppnt->p_type == PT_LOAD) {
@@ -568,8 +600,6 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
 			map_addr = elf_map(interpreter, load_addr + vaddr,
 					eppnt, elf_prot, elf_type, total_size);
 			total_size = 0;
-			if (!*interp_map_addr)
-				*interp_map_addr = map_addr;
 			error = map_addr;
 			if (BAD_ADDR(map_addr))
 				goto out;
@@ -588,8 +618,8 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
 			k = load_addr + eppnt->p_vaddr;
 			if (BAD_ADDR(k) ||
 			    eppnt->p_filesz > eppnt->p_memsz ||
-			    eppnt->p_memsz > TASK_SIZE ||
-			    TASK_SIZE - eppnt->p_memsz < k) {
+			    eppnt->p_memsz > pax_task_size ||
+			    pax_task_size - eppnt->p_memsz < k) {
 				error = -ENOMEM;
 				goto out;
 			}
@@ -628,9 +658,11 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
 		elf_bss = ELF_PAGESTART(elf_bss + ELF_MIN_ALIGN - 1);
 
 		/* Map the last of the bss segment */
-		error = vm_brk(elf_bss, last_bss - elf_bss);
-		if (BAD_ADDR(error))
-			goto out;
+		if (last_bss > elf_bss) {
+			error = vm_brk(elf_bss, last_bss - elf_bss);
+			if (BAD_ADDR(error))
+				goto out;
+		}
 	}
 
 	error = load_addr;
@@ -638,6 +670,336 @@ out:
 	return error;
 }
 
+#ifdef CONFIG_PAX_PT_PAX_FLAGS
+#ifdef CONFIG_PAX_SOFTMODE
+static unsigned long pax_parse_pt_pax_softmode(const struct elf_phdr * const elf_phdata)
+{
+	unsigned long pax_flags = 0UL;
+
+#ifdef CONFIG_PAX_PAGEEXEC
+	if (elf_phdata->p_flags & PF_PAGEEXEC)
+		pax_flags |= MF_PAX_PAGEEXEC;
+#endif
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (elf_phdata->p_flags & PF_SEGMEXEC)
+		pax_flags |= MF_PAX_SEGMEXEC;
+#endif
+
+#ifdef CONFIG_PAX_EMUTRAMP
+	if ((elf_phdata->p_flags & PF_EMUTRAMP) && (pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)))
+		pax_flags |= MF_PAX_EMUTRAMP;
+#endif
+
+#ifdef CONFIG_PAX_MPROTECT
+	if (elf_phdata->p_flags & PF_MPROTECT)
+		pax_flags |= MF_PAX_MPROTECT;
+#endif
+
+#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
+	if (randomize_va_space && (elf_phdata->p_flags & PF_RANDMMAP))
+		pax_flags |= MF_PAX_RANDMMAP;
+#endif
+
+	return pax_flags;
+}
+#endif
+
+static unsigned long pax_parse_pt_pax_hardmode(const struct elf_phdr * const elf_phdata)
+{
+	unsigned long pax_flags = 0UL;
+
+#ifdef CONFIG_PAX_PAGEEXEC
+	if (!(elf_phdata->p_flags & PF_NOPAGEEXEC))
+		pax_flags |= MF_PAX_PAGEEXEC;
+#endif
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (!(elf_phdata->p_flags & PF_NOSEGMEXEC))
+		pax_flags |= MF_PAX_SEGMEXEC;
+#endif
+
+#ifdef CONFIG_PAX_EMUTRAMP
+	if (!(elf_phdata->p_flags & PF_NOEMUTRAMP))
+		pax_flags |= MF_PAX_EMUTRAMP;
+#endif
+
+#ifdef CONFIG_PAX_MPROTECT
+	if (!(elf_phdata->p_flags & PF_NOMPROTECT))
+		pax_flags |= MF_PAX_MPROTECT;
+#endif
+
+#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
+	if (randomize_va_space && !(elf_phdata->p_flags & PF_NORANDMMAP))
+		pax_flags |= MF_PAX_RANDMMAP;
+#endif
+
+	return pax_flags;
+}
+#endif
+
+#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
+#ifdef CONFIG_PAX_SOFTMODE
+static unsigned long pax_parse_xattr_pax_softmode(unsigned long pax_flags_softmode)
+{
+	unsigned long pax_flags = 0UL;
+
+#ifdef CONFIG_PAX_PAGEEXEC
+	if (pax_flags_softmode & MF_PAX_PAGEEXEC)
+		pax_flags |= MF_PAX_PAGEEXEC;
+#endif
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (pax_flags_softmode & MF_PAX_SEGMEXEC)
+		pax_flags |= MF_PAX_SEGMEXEC;
+#endif
+
+#ifdef CONFIG_PAX_EMUTRAMP
+	if ((pax_flags_softmode & MF_PAX_EMUTRAMP) && (pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)))
+		pax_flags |= MF_PAX_EMUTRAMP;
+#endif
+
+#ifdef CONFIG_PAX_MPROTECT
+	if (pax_flags_softmode & MF_PAX_MPROTECT)
+		pax_flags |= MF_PAX_MPROTECT;
+#endif
+
+#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
+	if (randomize_va_space && (pax_flags_softmode & MF_PAX_RANDMMAP))
+		pax_flags |= MF_PAX_RANDMMAP;
+#endif
+
+	return pax_flags;
+}
+#endif
+
+static unsigned long pax_parse_xattr_pax_hardmode(unsigned long pax_flags_hardmode)
+{
+	unsigned long pax_flags = 0UL;
+
+#ifdef CONFIG_PAX_PAGEEXEC
+	if (!(pax_flags_hardmode & MF_PAX_PAGEEXEC))
+		pax_flags |= MF_PAX_PAGEEXEC;
+#endif
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (!(pax_flags_hardmode & MF_PAX_SEGMEXEC))
+		pax_flags |= MF_PAX_SEGMEXEC;
+#endif
+
+#ifdef CONFIG_PAX_EMUTRAMP
+	if (!(pax_flags_hardmode & MF_PAX_EMUTRAMP))
+		pax_flags |= MF_PAX_EMUTRAMP;
+#endif
+
+#ifdef CONFIG_PAX_MPROTECT
+	if (!(pax_flags_hardmode & MF_PAX_MPROTECT))
+		pax_flags |= MF_PAX_MPROTECT;
+#endif
+
+#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
+	if (randomize_va_space && !(pax_flags_hardmode & MF_PAX_RANDMMAP))
+		pax_flags |= MF_PAX_RANDMMAP;
+#endif
+
+	return pax_flags;
+}
+#endif
+
+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
+static unsigned long pax_parse_defaults(void)
+{
+	unsigned long pax_flags = 0UL;
+
+#ifdef CONFIG_PAX_SOFTMODE
+	if (pax_softmode)
+		return pax_flags;
+#endif
+
+#ifdef CONFIG_PAX_PAGEEXEC
+	pax_flags |= MF_PAX_PAGEEXEC;
+#endif
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	pax_flags |= MF_PAX_SEGMEXEC;
+#endif
+
+#ifdef CONFIG_PAX_MPROTECT
+	pax_flags |= MF_PAX_MPROTECT;
+#endif
+
+#ifdef CONFIG_PAX_RANDMMAP
+	if (randomize_va_space)
+		pax_flags |= MF_PAX_RANDMMAP;
+#endif
+
+	return pax_flags;
+}
+
+static unsigned long pax_parse_ei_pax(const struct elfhdr * const elf_ex)
+{
+	unsigned long pax_flags = PAX_PARSE_FLAGS_FALLBACK;
+
+#ifdef CONFIG_PAX_EI_PAX
+
+#ifdef CONFIG_PAX_SOFTMODE
+	if (pax_softmode)
+		return pax_flags;
+#endif
+
+	pax_flags = 0UL;
+
+#ifdef CONFIG_PAX_PAGEEXEC
+	if (!(elf_ex->e_ident[EI_PAX] & EF_PAX_PAGEEXEC))
+		pax_flags |= MF_PAX_PAGEEXEC;
+#endif
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (!(elf_ex->e_ident[EI_PAX] & EF_PAX_SEGMEXEC))
+		pax_flags |= MF_PAX_SEGMEXEC;
+#endif
+
+#ifdef CONFIG_PAX_EMUTRAMP
+	if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) && (elf_ex->e_ident[EI_PAX] & EF_PAX_EMUTRAMP))
+		pax_flags |= MF_PAX_EMUTRAMP;
+#endif
+
+#ifdef CONFIG_PAX_MPROTECT
+	if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) && !(elf_ex->e_ident[EI_PAX] & EF_PAX_MPROTECT))
+		pax_flags |= MF_PAX_MPROTECT;
+#endif
+
+#ifdef CONFIG_PAX_ASLR
+	if (randomize_va_space && !(elf_ex->e_ident[EI_PAX] & EF_PAX_RANDMMAP))
+		pax_flags |= MF_PAX_RANDMMAP;
+#endif
+
+#endif
+
+	return pax_flags;
+
+}
+
+static unsigned long pax_parse_pt_pax(const struct elfhdr * const elf_ex, const struct elf_phdr * const elf_phdata)
+{
+
+#ifdef CONFIG_PAX_PT_PAX_FLAGS
+	unsigned long i;
+
+	for (i = 0UL; i < elf_ex->e_phnum; i++)
+		if (elf_phdata[i].p_type == PT_PAX_FLAGS) {
+			if (((elf_phdata[i].p_flags & PF_PAGEEXEC) && (elf_phdata[i].p_flags & PF_NOPAGEEXEC)) ||
+			    ((elf_phdata[i].p_flags & PF_SEGMEXEC) && (elf_phdata[i].p_flags & PF_NOSEGMEXEC)) ||
+			    ((elf_phdata[i].p_flags & PF_EMUTRAMP) && (elf_phdata[i].p_flags & PF_NOEMUTRAMP)) ||
+			    ((elf_phdata[i].p_flags & PF_MPROTECT) && (elf_phdata[i].p_flags & PF_NOMPROTECT)) ||
+			    ((elf_phdata[i].p_flags & PF_RANDMMAP) && (elf_phdata[i].p_flags & PF_NORANDMMAP)))
+				return PAX_PARSE_FLAGS_FALLBACK;
+
+#ifdef CONFIG_PAX_SOFTMODE
+			if (pax_softmode)
+				return pax_parse_pt_pax_softmode(&elf_phdata[i]);
+			else
+#endif
+
+				return pax_parse_pt_pax_hardmode(&elf_phdata[i]);
+			break;
+		}
+#endif
+
+	return PAX_PARSE_FLAGS_FALLBACK;
+}
+
+static unsigned long pax_parse_xattr_pax(struct file * const file)
+{
+
+#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
+	ssize_t xattr_size, i;
+	unsigned char xattr_value[sizeof("pemrs") - 1];
+	unsigned long pax_flags_hardmode = 0UL, pax_flags_softmode = 0UL;
+
+	xattr_size = pax_getxattr(file->f_path.dentry, xattr_value, sizeof xattr_value);
+	if (xattr_size < 0 || xattr_size > sizeof xattr_value)
+		return PAX_PARSE_FLAGS_FALLBACK;
+
+	for (i = 0; i < xattr_size; i++)
+		switch (xattr_value[i]) {
+		default:
+			return PAX_PARSE_FLAGS_FALLBACK;
+
+#define parse_flag(option1, option2, flag)			\
+		case option1:					\
+			if (pax_flags_hardmode & MF_PAX_##flag)	\
+				return PAX_PARSE_FLAGS_FALLBACK;\
+			pax_flags_hardmode |= MF_PAX_##flag;	\
+			break;					\
+		case option2:					\
+			if (pax_flags_softmode & MF_PAX_##flag)	\
+				return PAX_PARSE_FLAGS_FALLBACK;\
+			pax_flags_softmode |= MF_PAX_##flag;	\
+			break;
+
+		parse_flag('p', 'P', PAGEEXEC);
+		parse_flag('e', 'E', EMUTRAMP);
+		parse_flag('m', 'M', MPROTECT);
+		parse_flag('r', 'R', RANDMMAP);
+		parse_flag('s', 'S', SEGMEXEC);
+
+#undef parse_flag
+		}
+
+	if (pax_flags_hardmode & pax_flags_softmode)
+		return PAX_PARSE_FLAGS_FALLBACK;
+
+#ifdef CONFIG_PAX_SOFTMODE
+	if (pax_softmode)
+		return pax_parse_xattr_pax_softmode(pax_flags_softmode);
+	else
+#endif
+
+		return pax_parse_xattr_pax_hardmode(pax_flags_hardmode);
+#else
+	return PAX_PARSE_FLAGS_FALLBACK;
+#endif
+
+}
+
+static long pax_parse_pax_flags(const struct elfhdr * const elf_ex, const struct elf_phdr * const elf_phdata, struct file * const file)
+{
+	unsigned long pax_flags, ei_pax_flags,  pt_pax_flags, xattr_pax_flags;
+
+	pax_flags = pax_parse_defaults();
+	ei_pax_flags = pax_parse_ei_pax(elf_ex);
+	pt_pax_flags = pax_parse_pt_pax(elf_ex, elf_phdata);
+	xattr_pax_flags = pax_parse_xattr_pax(file);
+
+	if (pt_pax_flags != PAX_PARSE_FLAGS_FALLBACK &&
+	    xattr_pax_flags != PAX_PARSE_FLAGS_FALLBACK &&
+	    pt_pax_flags != xattr_pax_flags)
+		return -EINVAL;
+	if (xattr_pax_flags != PAX_PARSE_FLAGS_FALLBACK)
+		pax_flags = xattr_pax_flags;
+	else if (pt_pax_flags != PAX_PARSE_FLAGS_FALLBACK)
+		pax_flags = pt_pax_flags;
+	else if (ei_pax_flags != PAX_PARSE_FLAGS_FALLBACK)
+		pax_flags = ei_pax_flags;
+
+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_PAX_SEGMEXEC)
+	if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) == (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
+		if ((__supported_pte_mask & _PAGE_NX))
+			pax_flags &= ~MF_PAX_SEGMEXEC;
+		else
+			pax_flags &= ~MF_PAX_PAGEEXEC;
+	}
+#endif
+
+	if (0 > pax_check_flags(&pax_flags))
+		return -EINVAL;
+
+	current->mm->pax_flags = pax_flags;
+	return 0;
+}
+#endif
+
 /*
  * These are the functions used to load ELF style executables and shared
  * libraries.  There is no binary dependent code anywhere else.
@@ -651,6 +1013,11 @@ static unsigned long randomize_stack_top(unsigned long stack_top)
 {
 	unsigned long random_variable = 0;
 
+#ifdef CONFIG_PAX_RANDUSTACK
+	if (current->mm->pax_flags & MF_PAX_RANDMMAP)
+		return stack_top - current->mm->delta_stack;
+#endif
+
 	if ((current->flags & PF_RANDOMIZE) &&
 		!(current->personality & ADDR_NO_RANDOMIZE)) {
 		random_variable = get_random_long();
@@ -670,7 +1037,7 @@ static int load_elf_binary(struct linux_binprm *bprm)
  	unsigned long load_addr = 0, load_bias = 0;
 	int load_addr_set = 0;
 	char * elf_interpreter = NULL;
-	unsigned long error;
+	unsigned long error = 0;
 	struct elf_phdr *elf_ppnt, *elf_phdata, *interp_elf_phdata = NULL;
 	unsigned long elf_bss, elf_brk;
 	int retval, i;
@@ -685,6 +1052,7 @@ static int load_elf_binary(struct linux_binprm *bprm)
 		struct elfhdr interp_elf_ex;
 	} *loc;
 	struct arch_elf_state arch_state = INIT_ARCH_ELF_STATE;
+	unsigned long pax_task_size;
 
 	loc = kmalloc(sizeof(*loc), GFP_KERNEL);
 	if (!loc) {
@@ -845,6 +1213,77 @@ static int load_elf_binary(struct linux_binprm *bprm)
 	/* Do this immediately, since STACK_TOP as used in setup_arg_pages
 	   may depend on the personality.  */
 	SET_PERSONALITY2(loc->elf_ex, &arch_state);
+
+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
+	current->mm->pax_flags = 0UL;
+#endif
+
+#ifdef CONFIG_PAX_DLRESOLVE
+	current->mm->call_dl_resolve = 0UL;
+#endif
+
+#if defined(CONFIG_PPC32) && defined(CONFIG_PAX_EMUSIGRT)
+	current->mm->call_syscall = 0UL;
+#endif
+
+#ifdef CONFIG_PAX_ASLR
+	current->mm->delta_mmap = 0UL;
+	current->mm->delta_stack = 0UL;
+#endif
+
+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
+	if (0 > pax_parse_pax_flags(&loc->elf_ex, elf_phdata, bprm->file)) {
+		retval = -EINVAL;
+		goto out_free_dentry;
+	}
+#endif
+
+#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
+	pax_set_initial_flags(bprm);
+#elif defined(CONFIG_PAX_HOOK_ACL_FLAGS)
+	if (pax_set_initial_flags_func)
+		(pax_set_initial_flags_func)(bprm);
+#endif
+
+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
+	if ((current->mm->pax_flags & MF_PAX_PAGEEXEC) && !(__supported_pte_mask & _PAGE_NX)) {
+		current->mm->context.user_cs_limit = PAGE_SIZE;
+		current->mm->def_flags |= VM_PAGEEXEC | VM_NOHUGEPAGE;
+	}
+#endif
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (current->mm->pax_flags & MF_PAX_SEGMEXEC) {
+		current->mm->context.user_cs_base = SEGMEXEC_TASK_SIZE;
+		current->mm->context.user_cs_limit = TASK_SIZE-SEGMEXEC_TASK_SIZE;
+		pax_task_size = SEGMEXEC_TASK_SIZE;
+		current->mm->def_flags |= VM_NOHUGEPAGE;
+	} else
+#endif
+
+	pax_task_size = TASK_SIZE;
+
+#if defined(CONFIG_ARCH_TRACK_EXEC_LIMIT) || defined(CONFIG_PAX_SEGMEXEC)
+	if (current->mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
+		set_user_cs(current->mm->context.user_cs_base, current->mm->context.user_cs_limit, get_cpu());
+		put_cpu();
+	}
+#endif
+
+#ifdef CONFIG_PAX_ASLR
+	if (current->mm->pax_flags & MF_PAX_RANDMMAP) {
+		current->mm->delta_mmap = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN)-1)) << PAGE_SHIFT;
+		current->mm->delta_stack = (pax_get_random_long() & ((1UL << PAX_DELTA_STACK_LEN)-1)) << PAGE_SHIFT;
+	}
+#endif
+
+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
+	if (current->mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
+		executable_stack = EXSTACK_DISABLE_X;
+		current->personality &= ~READ_IMPLIES_EXEC;
+	} else
+#endif
+
 	if (elf_read_implies_exec(loc->elf_ex, executable_stack))
 		current->personality |= READ_IMPLIES_EXEC;
 
@@ -920,8 +1359,21 @@ static int load_elf_binary(struct linux_binprm *bprm)
 			if (current->flags & PF_RANDOMIZE)
 				load_bias += arch_mmap_rnd();
 			load_bias = ELF_PAGESTART(load_bias);
-			total_size = total_mapping_size(elf_phdata,
-							loc->elf_ex.e_phnum);
+
+#ifdef CONFIG_PAX_RANDMMAP
+			/* PaX: randomize base address at the default exe base if requested */
+			if ((current->mm->pax_flags & MF_PAX_RANDMMAP) && elf_interpreter) {
+#ifdef CONFIG_SPARC64
+				load_bias = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN) - 1)) << (PAGE_SHIFT+1);
+#else
+				load_bias = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN) - 1)) << PAGE_SHIFT;
+#endif
+				load_bias = ELF_PAGESTART(PAX_ELF_ET_DYN_BASE - vaddr + load_bias);
+				elf_flags |= MAP_FIXED;
+			}
+#endif
+
+			total_size = total_mapping_size(elf_phdata, loc->elf_ex.e_phnum);
 			if (!total_size) {
 				retval = -EINVAL;
 				goto out_free_dentry;
@@ -957,9 +1409,9 @@ static int load_elf_binary(struct linux_binprm *bprm)
 		 * allowed task size. Note that p_filesz must always be
 		 * <= p_memsz so it is only necessary to check p_memsz.
 		 */
-		if (BAD_ADDR(k) || elf_ppnt->p_filesz > elf_ppnt->p_memsz ||
-		    elf_ppnt->p_memsz > TASK_SIZE ||
-		    TASK_SIZE - elf_ppnt->p_memsz < k) {
+		if (k >= pax_task_size || elf_ppnt->p_filesz > elf_ppnt->p_memsz ||
+		    elf_ppnt->p_memsz > pax_task_size ||
+		    pax_task_size - elf_ppnt->p_memsz < k) {
 			/* set_brk can never work. Avoid overflows. */
 			retval = -EINVAL;
 			goto out_free_dentry;
@@ -995,16 +1447,43 @@ static int load_elf_binary(struct linux_binprm *bprm)
 	if (retval)
 		goto out_free_dentry;
 	if (likely(elf_bss != elf_brk) && unlikely(padzero(elf_bss))) {
-		retval = -EFAULT; /* Nobody gets to see this, but.. */
-		goto out_free_dentry;
+		/*
+		 * This bss-zeroing can fail if the ELF
+		 * file specifies odd protections. So
+		 * we don't check the return value
+		 */
 	}
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (current->mm->pax_flags & MF_PAX_RANDMMAP) {
+		unsigned long start, size, flags;
+		vm_flags_t vm_flags;
+
+		start = ELF_PAGEALIGN(elf_brk);
+		size = PAGE_SIZE + ((pax_get_random_long() & ((1UL << 22) - 1UL)) << 4);
+		flags = MAP_FIXED | MAP_PRIVATE;
+		vm_flags = VM_DONTEXPAND | VM_DONTDUMP;
+
+		down_write(&current->mm->mmap_sem);
+		start = get_unmapped_area(NULL, start, PAGE_ALIGN(size), 0, flags);
+		retval = -ENOMEM;
+		if (!IS_ERR_VALUE(start) && !find_vma_intersection(current->mm, start, start + size + PAGE_SIZE)) {
+//			if (current->personality & ADDR_NO_RANDOMIZE)
+//				vm_flags |= VM_READ | VM_MAYREAD;
+			start = mmap_region(NULL, start, PAGE_ALIGN(size), vm_flags, 0);
+			retval = IS_ERR_VALUE(start) ? start : 0;
+		}
+		up_write(&current->mm->mmap_sem);
+		if (retval == 0)
+			retval = set_brk(start + size, start + size + PAGE_SIZE);
+		if (retval < 0)
+			goto out_free_dentry;
+	}
+#endif
+
 	if (elf_interpreter) {
-		unsigned long interp_map_addr = 0;
-
 		elf_entry = load_elf_interp(&loc->interp_elf_ex,
 					    interpreter,
-					    &interp_map_addr,
 					    load_bias, interp_elf_phdata);
 		if (!IS_ERR((void *)elf_entry)) {
 			/*
@@ -1055,6 +1534,7 @@ static int load_elf_binary(struct linux_binprm *bprm)
 	current->mm->end_data = end_data;
 	current->mm->start_stack = bprm->p;
 
+#ifndef CONFIG_PAX_RANDMMAP
 	if ((current->flags & PF_RANDOMIZE) && (randomize_va_space > 1)) {
 		current->mm->brk = current->mm->start_brk =
 			arch_randomize_brk(current->mm);
@@ -1062,6 +1542,7 @@ static int load_elf_binary(struct linux_binprm *bprm)
 		current->brk_randomized = 1;
 #endif
 	}
+#endif
 
 	if (current->personality & MMAP_PAGE_ZERO) {
 		/* Why this, you ask???  Well SVr4 maps page 0 as read-only,
@@ -1230,7 +1711,7 @@ static bool always_dump_vma(struct vm_area_struct *vma)
  * Decide what to dump of a segment, part, all or none.
  */
 static unsigned long vma_dump_size(struct vm_area_struct *vma,
-				   unsigned long mm_flags)
+				   unsigned long mm_flags, long signr)
 {
 #define FILTER(type)	(mm_flags & (1UL << MMF_DUMP_##type))
 
@@ -1277,7 +1758,7 @@ static unsigned long vma_dump_size(struct vm_area_struct *vma,
 	if (vma->vm_file == NULL)
 		return 0;
 
-	if (FILTER(MAPPED_PRIVATE))
+	if (signr == SIGKILL || FILTER(MAPPED_PRIVATE))
 		goto whole;
 
 	/*
@@ -1377,7 +1858,7 @@ static void fill_elf_header(struct elfhdr *elf, int segs,
 	return;
 }
 
-static void fill_elf_note_phdr(struct elf_phdr *phdr, int sz, loff_t offset)
+static void fill_elf_note_phdr(struct elf_phdr *phdr, size_t sz, loff_t offset)
 {
 	phdr->p_type = PT_NOTE;
 	phdr->p_offset = offset;
@@ -1484,9 +1965,9 @@ static void fill_auxv_note(struct memelfnote *note, struct mm_struct *mm)
 {
 	elf_addr_t *auxv = (elf_addr_t *) mm->saved_auxv;
 	int i = 0;
-	do
+	do {
 		i += 2;
-	while (auxv[i - 2] != AT_NULL);
+	} while (auxv[i - 2] != AT_NULL);
 	fill_note(note, "CORE", NT_AUXV, i * sizeof(elf_addr_t), auxv);
 }
 
@@ -1495,7 +1976,7 @@ static void fill_siginfo_note(struct memelfnote *note, user_siginfo_t *csigdata,
 {
 	mm_segment_t old_fs = get_fs();
 	set_fs(KERNEL_DS);
-	copy_siginfo_to_user((user_siginfo_t __user *) csigdata, siginfo);
+	copy_siginfo_to_user((user_siginfo_t __force_user *) csigdata, siginfo);
 	set_fs(old_fs);
 	fill_note(note, "CORE", NT_SIGINFO, sizeof(*csigdata), csigdata);
 }
@@ -2215,7 +2696,7 @@ static int elf_core_dump(struct coredump_params *cprm)
 			vma = next_vma(vma, gate_vma)) {
 		unsigned long dump_size;
 
-		dump_size = vma_dump_size(vma, cprm->mm_flags);
+		dump_size = vma_dump_size(vma, cprm->mm_flags, cprm->siginfo->si_signo);
 		vma_filesz[i++] = dump_size;
 		vma_data_size += dump_size;
 	}
@@ -2323,6 +2804,167 @@ out:
 
 #endif		/* CONFIG_ELF_CORE */
 
+#ifdef CONFIG_PAX_MPROTECT
+/* PaX: non-PIC ELF libraries need relocations on their executable segments
+ * therefore we'll grant them VM_MAYWRITE once during their life. Similarly
+ * we'll remove VM_MAYWRITE for good on RELRO segments.
+ *
+ * The checks favour ld-linux.so behaviour which operates on a per ELF segment
+ * basis because we want to allow the common case and not the special ones.
+ */
+static void elf_handle_mprotect(struct vm_area_struct *vma, unsigned long newflags)
+{
+	struct elfhdr elf_h;
+	struct elf_phdr elf_p;
+	unsigned long i;
+	unsigned long oldflags;
+	bool is_textrel_rw, is_textrel_rx, is_relro;
+
+	if (!(vma->vm_mm->pax_flags & MF_PAX_MPROTECT) || !vma->vm_file)
+		return;
+
+	oldflags = vma->vm_flags & (VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_EXEC | VM_WRITE | VM_READ);
+	newflags &= VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_EXEC | VM_WRITE | VM_READ;
+
+#ifdef CONFIG_PAX_ELFRELOCS
+	/* possible TEXTREL */
+	is_textrel_rw = !vma->anon_vma && oldflags == (VM_MAYEXEC | VM_MAYREAD | VM_EXEC | VM_READ) && newflags == (VM_WRITE | VM_READ);
+	is_textrel_rx = vma->anon_vma && oldflags == (VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_WRITE | VM_READ) && newflags == (VM_EXEC | VM_READ);
+#else
+	is_textrel_rw = false;
+	is_textrel_rx = false;
+#endif
+
+	/* possible RELRO */
+	is_relro = vma->anon_vma && oldflags == (VM_MAYWRITE | VM_MAYREAD | VM_READ) && newflags == (VM_MAYWRITE | VM_MAYREAD | VM_READ);
+
+	if (!is_textrel_rw && !is_textrel_rx && !is_relro)
+		return;
+
+	if (sizeof(elf_h) != kernel_read(vma->vm_file, 0UL, (char *)&elf_h, sizeof(elf_h)) ||
+	    memcmp(elf_h.e_ident, ELFMAG, SELFMAG) ||
+
+#ifdef CONFIG_PAX_ETEXECRELOCS
+	    ((is_textrel_rw || is_textrel_rx) && (elf_h.e_type != ET_DYN && elf_h.e_type != ET_EXEC)) ||
+#else
+	    ((is_textrel_rw || is_textrel_rx) && elf_h.e_type != ET_DYN) ||
+#endif
+
+	    (is_relro && (elf_h.e_type != ET_DYN && elf_h.e_type != ET_EXEC)) ||
+	    !elf_check_arch(&elf_h) ||
+	    elf_h.e_phentsize != sizeof(struct elf_phdr) ||
+	    elf_h.e_phnum > 65536UL / sizeof(struct elf_phdr))
+		return;
+
+	for (i = 0UL; i < elf_h.e_phnum; i++) {
+		if (sizeof(elf_p) != kernel_read(vma->vm_file, elf_h.e_phoff + i*sizeof(elf_p), (char *)&elf_p, sizeof(elf_p)))
+			return;
+		switch (elf_p.p_type) {
+		case PT_DYNAMIC:
+			if (!is_textrel_rw && !is_textrel_rx)
+				continue;
+			i = 0UL;
+			while ((i+1) * sizeof(elf_dyn) <= elf_p.p_filesz) {
+				elf_dyn dyn;
+
+				if (sizeof(dyn) != kernel_read(vma->vm_file, elf_p.p_offset + i*sizeof(dyn), (char *)&dyn, sizeof(dyn)))
+					break;
+				if (dyn.d_tag == DT_NULL)
+					break;
+				if (dyn.d_tag == DT_TEXTREL || (dyn.d_tag == DT_FLAGS && (dyn.d_un.d_val & DF_TEXTREL))) {
+					gr_log_textrel(vma, is_textrel_rw);
+					if (is_textrel_rw)
+						vma->vm_flags |= VM_MAYWRITE;
+					else
+						/* PaX: disallow write access after relocs are done, hopefully noone else needs it... */
+						vma->vm_flags &= ~VM_MAYWRITE;
+					break;
+				}
+				i++;
+			}
+			is_textrel_rw = false;
+			is_textrel_rx = false;
+			continue;
+
+		case PT_GNU_RELRO:
+			if (!is_relro)
+				continue;
+			if ((elf_p.p_offset >> PAGE_SHIFT) == vma->vm_pgoff && ELF_PAGEALIGN(elf_p.p_memsz) == vma->vm_end - vma->vm_start)
+				vma->vm_flags &= ~VM_MAYWRITE;
+			is_relro = false;
+			continue;
+
+#ifdef CONFIG_PAX_PT_PAX_FLAGS
+		case PT_PAX_FLAGS: {
+			const char *msg_mprotect = "", *msg_emutramp = "";
+			char *buffer_lib, *buffer_exe;
+
+			if (elf_p.p_flags & PF_NOMPROTECT)
+				msg_mprotect = "MPROTECT disabled";
+
+#ifdef CONFIG_PAX_EMUTRAMP
+			if (!(vma->vm_mm->pax_flags & MF_PAX_EMUTRAMP) && !(elf_p.p_flags & PF_NOEMUTRAMP))
+				msg_emutramp = "EMUTRAMP enabled";
+#endif
+
+			if (!msg_mprotect[0] && !msg_emutramp[0])
+				continue;
+
+			if (!printk_ratelimit())
+				continue;
+
+			buffer_lib = (char *)__get_free_page(GFP_KERNEL);
+			buffer_exe = (char *)__get_free_page(GFP_KERNEL);
+			if (buffer_lib && buffer_exe) {
+				char *path_lib, *path_exe;
+
+				path_lib = pax_get_path(&vma->vm_file->f_path, buffer_lib, PAGE_SIZE);
+				path_exe = pax_get_path(&vma->vm_mm->exe_file->f_path, buffer_exe, PAGE_SIZE);
+
+				pr_info("PAX: %s wants %s%s%s on %s\n", path_lib, msg_mprotect,
+					(msg_mprotect[0] && msg_emutramp[0] ? " and " : ""), msg_emutramp, path_exe);
+
+			}
+			free_page((unsigned long)buffer_exe);
+			free_page((unsigned long)buffer_lib);
+			continue;
+		}
+#endif
+
+		}
+	}
+}
+#endif
+
+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
+
+extern int grsec_enable_log_rwxmaps;
+
+static void elf_handle_mmap(struct file *file)
+{
+	struct elfhdr elf_h;
+	struct elf_phdr elf_p;
+	unsigned long i;
+
+	if (!grsec_enable_log_rwxmaps)
+		return;
+
+	if (sizeof(elf_h) != kernel_read(file, 0UL, (char *)&elf_h, sizeof(elf_h)) ||
+	    memcmp(elf_h.e_ident, ELFMAG, SELFMAG) ||
+	    (elf_h.e_type != ET_DYN && elf_h.e_type != ET_EXEC) || !elf_check_arch(&elf_h) ||
+	    elf_h.e_phentsize != sizeof(struct elf_phdr) ||
+	    elf_h.e_phnum > 65536UL / sizeof(struct elf_phdr))
+		return;
+
+	for (i = 0UL; i < elf_h.e_phnum; i++) {
+		if (sizeof(elf_p) != kernel_read(file, elf_h.e_phoff + i*sizeof(elf_p), (char *)&elf_p, sizeof(elf_p)))
+			return;
+		if (elf_p.p_type == PT_GNU_STACK && (elf_p.p_flags & PF_X))
+			gr_log_ptgnustack(file);
+	}
+}
+#endif
+
 static int __init init_elf_binfmt(void)
 {
 	register_binfmt(&elf_format);
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index 083ea2bc..46a3cd3 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -1336,7 +1336,7 @@ static inline void fill_elf_fdpic_header(struct elfhdr *elf, int segs)
 	return;
 }
 
-static inline void fill_elf_note_phdr(struct elf_phdr *phdr, int sz, loff_t offset)
+static inline void fill_elf_note_phdr(struct elf_phdr *phdr, size_t sz, loff_t offset)
 {
 	phdr->p_type = PT_NOTE;
 	phdr->p_offset = offset;
@@ -1707,7 +1707,7 @@ static int elf_fdpic_core_dump(struct coredump_params *cprm)
 
 	/* Write notes phdr entry */
 	{
-		int sz = 0;
+		size_t sz = 0;
 
 		for (i = 0; i < numnote; i++)
 			sz += notesize(notes + i);
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 20a2c02..5daa230 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -770,7 +770,7 @@ static bool bd_may_claim(struct block_device *bdev, struct block_device *whole,
 	else if (bdev->bd_contains == bdev)
 		return true;  	 /* is a whole device which isn't held */
 
-	else if (whole->bd_holder == bd_may_claim)
+	else if (whole->bd_holder == (void *)bd_may_claim)
 		return true; 	 /* is a partition of a device that is being partitioned */
 	else if (whole->bd_holder != NULL)
 		return false;	 /* is a partition of a held device */
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index ec7928a..89f482a 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -358,7 +358,7 @@ static inline void tree_mod_log_write_unlock(struct btrfs_fs_info *fs_info)
  */
 static inline u64 btrfs_inc_tree_mod_seq(struct btrfs_fs_info *fs_info)
 {
-	return atomic64_inc_return(&fs_info->tree_mod_seq);
+	return atomic64_inc_return_unchecked(&fs_info->tree_mod_seq);
 }
 
 /*
@@ -1182,9 +1182,12 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans,
 		free_extent_buffer(buf);
 		add_root_to_dirty_list(root);
 	} else {
-		if (root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID)
-			parent_start = parent->start;
-		else
+		if (root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID) {
+			if (parent)
+				parent_start = parent->start;
+			else
+				parent_start = 0;
+		} else
 			parent_start = 0;
 
 		WARN_ON(trans->transid != btrfs_header_generation(parent));
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 208d199..0a5afe1 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1615,7 +1615,7 @@ struct btrfs_fs_info {
 
 	/* this protects tree_mod_seq_list */
 	spinlock_t tree_mod_seq_lock;
-	atomic64_t tree_mod_seq;
+	atomic64_unchecked_t tree_mod_seq;
 	struct list_head tree_mod_seq_list;
 
 	/* this protects tree_mod_log */
@@ -1925,7 +1925,7 @@ struct btrfs_root {
 	struct list_head log_ctxs[2];
 	atomic_t log_writers;
 	atomic_t log_commit[2];
-	atomic_t log_batch;
+	atomic_unchecked_t log_batch;
 	int log_transid;
 	/* No matter the commit succeeds or not*/
 	int log_transid_committed;
diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
index 6cef006..48c10a6 100644
--- a/fs/btrfs/delayed-inode.c
+++ b/fs/btrfs/delayed-inode.c
@@ -456,7 +456,7 @@ static int __btrfs_add_delayed_deletion_item(struct btrfs_delayed_node *node,
 
 static void finish_one_item(struct btrfs_delayed_root *delayed_root)
 {
-	int seq = atomic_inc_return(&delayed_root->items_seq);
+	int seq = atomic_inc_return_unchecked(&delayed_root->items_seq);
 
 	/*
 	 * atomic_dec_return implies a barrier for waitqueue_active
@@ -1415,7 +1415,7 @@ void btrfs_assert_delayed_root_empty(struct btrfs_root *root)
 
 static int could_end_wait(struct btrfs_delayed_root *delayed_root, int seq)
 {
-	int val = atomic_read(&delayed_root->items_seq);
+	int val = atomic_read_unchecked(&delayed_root->items_seq);
 
 	if (val < seq || val >= seq + BTRFS_DELAYED_BATCH)
 		return 1;
@@ -1440,7 +1440,7 @@ void btrfs_balance_delayed_items(struct btrfs_root *root)
 		int seq;
 		int ret;
 
-		seq = atomic_read(&delayed_root->items_seq);
+		seq = atomic_read_unchecked(&delayed_root->items_seq);
 
 		ret = btrfs_wq_run_delayed_node(delayed_root, fs_info, 0);
 		if (ret)
diff --git a/fs/btrfs/delayed-inode.h b/fs/btrfs/delayed-inode.h
index 0167853c..b7d2bb4 100644
--- a/fs/btrfs/delayed-inode.h
+++ b/fs/btrfs/delayed-inode.h
@@ -43,7 +43,7 @@ struct btrfs_delayed_root {
 	 */
 	struct list_head prepare_list;
 	atomic_t items;		/* for delayed items */
-	atomic_t items_seq;	/* for delayed items */
+	atomic_unchecked_t items_seq;	/* for delayed items */
 	int nodes;		/* for delayed nodes */
 	wait_queue_head_t wait;
 };
@@ -90,7 +90,7 @@ static inline void btrfs_init_delayed_root(
 				struct btrfs_delayed_root *delayed_root)
 {
 	atomic_set(&delayed_root->items, 0);
-	atomic_set(&delayed_root->items_seq, 0);
+	atomic_set_unchecked(&delayed_root->items_seq, 0);
 	delayed_root->nodes = 0;
 	spin_lock_init(&delayed_root->lock);
 	init_waitqueue_head(&delayed_root->wait);
diff --git a/fs/btrfs/delayed-ref.c b/fs/btrfs/delayed-ref.c
index 430b368..85f12e1 100644
--- a/fs/btrfs/delayed-ref.c
+++ b/fs/btrfs/delayed-ref.c
@@ -660,7 +660,7 @@ add_delayed_tree_ref(struct btrfs_fs_info *fs_info,
 		action = BTRFS_ADD_DELAYED_REF;
 
 	if (is_fstree(ref_root))
-		seq = atomic64_read(&fs_info->tree_mod_seq);
+		seq = atomic64_read_unchecked(&fs_info->tree_mod_seq);
 	delayed_refs = &trans->transaction->delayed_refs;
 
 	/* first set the basic ref node struct up */
@@ -716,7 +716,7 @@ add_delayed_data_ref(struct btrfs_fs_info *fs_info,
 	delayed_refs = &trans->transaction->delayed_refs;
 
 	if (is_fstree(ref_root))
-		seq = atomic64_read(&fs_info->tree_mod_seq);
+		seq = atomic64_read_unchecked(&fs_info->tree_mod_seq);
 
 	/* first set the basic ref node struct up */
 	atomic_set(&ref->refs, 1);
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 4e47849..d0d47dc 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1278,7 +1278,7 @@ static void __setup_root(u32 nodesize, u32 sectorsize, u32 stripesize,
 	atomic_set(&root->log_commit[0], 0);
 	atomic_set(&root->log_commit[1], 0);
 	atomic_set(&root->log_writers, 0);
-	atomic_set(&root->log_batch, 0);
+	atomic_set_unchecked(&root->log_batch, 0);
 	atomic_set(&root->orphan_inodes, 0);
 	atomic_set(&root->refs, 1);
 	atomic_set(&root->will_be_snapshoted, 0);
@@ -2612,7 +2612,7 @@ int open_ctree(struct super_block *sb,
 	atomic_set(&fs_info->defrag_running, 0);
 	atomic_set(&fs_info->qgroup_op_seq, 0);
 	atomic_set(&fs_info->reada_works_cnt, 0);
-	atomic64_set(&fs_info->tree_mod_seq, 0);
+	atomic64_set_unchecked(&fs_info->tree_mod_seq, 0);
 	fs_info->sb = sb;
 	fs_info->max_inline = BTRFS_DEFAULT_MAX_INLINE;
 	fs_info->metadata_ratio = 0;
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c
index 318b048..d91951ea 100644
--- a/fs/btrfs/extent_map.c
+++ b/fs/btrfs/extent_map.c
@@ -235,7 +235,9 @@ static void try_merge_map(struct extent_map_tree *tree, struct extent_map *em)
 			em->start = merge->start;
 			em->orig_start = merge->orig_start;
 			em->len += merge->len;
-			em->block_len += merge->block_len;
+			if (em->block_start != EXTENT_MAP_HOLE &&
+			    em->block_start != EXTENT_MAP_INLINE)
+				em->block_len += merge->block_len;
 			em->block_start = merge->block_start;
 			em->mod_len = (em->mod_len + em->mod_start) - merge->mod_start;
 			em->mod_start = merge->mod_start;
@@ -252,7 +254,9 @@ static void try_merge_map(struct extent_map_tree *tree, struct extent_map *em)
 		merge = rb_entry(rb, struct extent_map, rb_node);
 	if (rb && mergable_maps(em, merge)) {
 		em->len += merge->len;
-		em->block_len += merge->block_len;
+		if (em->block_start != EXTENT_MAP_HOLE &&
+		    em->block_start != EXTENT_MAP_INLINE)
+			em->block_len += merge->block_len;
 		rb_erase(&merge->rb_node, &tree->map);
 		RB_CLEAR_NODE(&merge->rb_node);
 		em->mod_len = (merge->mod_start + merge->mod_len) - em->mod_start;
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index af5c7fa..64568af 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1939,7 +1939,7 @@ int btrfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
 		return ret;
 
 	inode_lock(inode);
-	atomic_inc(&root->log_batch);
+	atomic_inc_unchecked(&root->log_batch);
 	full_sync = test_bit(BTRFS_INODE_NEEDS_FULL_SYNC,
 			     &BTRFS_I(inode)->runtime_flags);
 	/*
@@ -1993,7 +1993,7 @@ int btrfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
 		inode_unlock(inode);
 		goto out;
 	}
-	atomic_inc(&root->log_batch);
+	atomic_inc_unchecked(&root->log_batch);
 
 	/*
 	 * If the last transaction that changed this file was before the current
diff --git a/fs/btrfs/free-space-cache.h b/fs/btrfs/free-space-cache.h
index 33178c4..ff2e4ad 100644
--- a/fs/btrfs/free-space-cache.h
+++ b/fs/btrfs/free-space-cache.h
@@ -48,6 +48,7 @@ struct btrfs_free_space_op {
 	bool (*use_bitmap)(struct btrfs_free_space_ctl *ctl,
 			   struct btrfs_free_space *info);
 };
+typedef struct btrfs_free_space_op __no_const btrfs_free_space_op_no_const;
 
 struct btrfs_io_ctl;
 
diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c
index 0b7792e..be2ccab17 100644
--- a/fs/btrfs/raid56.c
+++ b/fs/btrfs/raid56.c
@@ -153,7 +153,7 @@ struct btrfs_raid_bio {
 
 	atomic_t stripes_pending;
 
-	atomic_t error;
+	atomic_unchecked_t error;
 	/*
 	 * these are two arrays of pointers.  We allocate the
 	 * rbio big enough to hold them both and setup their
@@ -916,7 +916,7 @@ static void raid_write_end_io(struct bio *bio)
 	/* OK, we have read all the stripes we need to. */
 	max_errors = (rbio->operation == BTRFS_RBIO_PARITY_SCRUB) ?
 		     0 : rbio->bbio->max_errors;
-	if (atomic_read(&rbio->error) > max_errors)
+	if (atomic_read_unchecked(&rbio->error) > max_errors)
 		err = -EIO;
 
 	rbio_orig_end_io(rbio, err);
@@ -999,7 +999,7 @@ static struct btrfs_raid_bio *alloc_rbio(struct btrfs_root *root,
 	rbio->faila = -1;
 	rbio->failb = -1;
 	atomic_set(&rbio->refs, 1);
-	atomic_set(&rbio->error, 0);
+	atomic_set_unchecked(&rbio->error, 0);
 	atomic_set(&rbio->stripes_pending, 0);
 
 	/*
@@ -1208,7 +1208,7 @@ static noinline void finish_rmw(struct btrfs_raid_bio *rbio)
 	set_bit(RBIO_RMW_LOCKED_BIT, &rbio->flags);
 	spin_unlock_irq(&rbio->bio_list_lock);
 
-	atomic_set(&rbio->error, 0);
+	atomic_set_unchecked(&rbio->error, 0);
 
 	/*
 	 * now that we've set rmw_locked, run through the
@@ -1396,11 +1396,11 @@ static int fail_rbio_index(struct btrfs_raid_bio *rbio, int failed)
 	if (rbio->faila == -1) {
 		/* first failure on this rbio */
 		rbio->faila = failed;
-		atomic_inc(&rbio->error);
+		atomic_inc_unchecked(&rbio->error);
 	} else if (rbio->failb == -1) {
 		/* second failure on this rbio */
 		rbio->failb = failed;
-		atomic_inc(&rbio->error);
+		atomic_inc_unchecked(&rbio->error);
 	} else {
 		ret = -EIO;
 	}
@@ -1462,7 +1462,7 @@ static void raid_rmw_end_io(struct bio *bio)
 	if (!atomic_dec_and_test(&rbio->stripes_pending))
 		return;
 
-	if (atomic_read(&rbio->error) > rbio->bbio->max_errors)
+	if (atomic_read_unchecked(&rbio->error) > rbio->bbio->max_errors)
 		goto cleanup;
 
 	/*
@@ -1517,7 +1517,7 @@ static int raid56_rmw_stripe(struct btrfs_raid_bio *rbio)
 
 	index_rbio_pages(rbio);
 
-	atomic_set(&rbio->error, 0);
+	atomic_set_unchecked(&rbio->error, 0);
 	/*
 	 * build a list of bios to read all the missing parts of this
 	 * stripe
@@ -2009,7 +2009,7 @@ static void raid_recover_end_io(struct bio *bio)
 	if (!atomic_dec_and_test(&rbio->stripes_pending))
 		return;
 
-	if (atomic_read(&rbio->error) > rbio->bbio->max_errors)
+	if (atomic_read_unchecked(&rbio->error) > rbio->bbio->max_errors)
 		rbio_orig_end_io(rbio, -EIO);
 	else
 		__raid_recover_end_io(rbio);
@@ -2038,7 +2038,7 @@ static int __raid56_parity_recover(struct btrfs_raid_bio *rbio)
 	if (ret)
 		goto cleanup;
 
-	atomic_set(&rbio->error, 0);
+	atomic_set_unchecked(&rbio->error, 0);
 
 	/*
 	 * read everything that hasn't failed.  Thanks to the
@@ -2047,7 +2047,7 @@ static int __raid56_parity_recover(struct btrfs_raid_bio *rbio)
 	 */
 	for (stripe = 0; stripe < rbio->real_stripes; stripe++) {
 		if (rbio->faila == stripe || rbio->failb == stripe) {
-			atomic_inc(&rbio->error);
+			atomic_inc_unchecked(&rbio->error);
 			continue;
 		}
 
@@ -2077,7 +2077,7 @@ static int __raid56_parity_recover(struct btrfs_raid_bio *rbio)
 		 * were up to date, or we might have no bios to read because
 		 * the devices were gone.
 		 */
-		if (atomic_read(&rbio->error) <= rbio->bbio->max_errors) {
+		if (atomic_read_unchecked(&rbio->error) <= rbio->bbio->max_errors) {
 			__raid_recover_end_io(rbio);
 			goto out;
 		} else {
@@ -2338,7 +2338,7 @@ static noinline void finish_parity_scrub(struct btrfs_raid_bio *rbio,
 		SetPageUptodate(q_page);
 	}
 
-	atomic_set(&rbio->error, 0);
+	atomic_set_unchecked(&rbio->error, 0);
 
 	for_each_set_bit(pagenr, rbio->dbitmap, rbio->stripe_npages) {
 		struct page *p;
@@ -2457,7 +2457,7 @@ static inline int is_data_stripe(struct btrfs_raid_bio *rbio, int stripe)
  */
 static void validate_rbio_for_parity_scrub(struct btrfs_raid_bio *rbio)
 {
-	if (atomic_read(&rbio->error) > rbio->bbio->max_errors)
+	if (atomic_read_unchecked(&rbio->error) > rbio->bbio->max_errors)
 		goto cleanup;
 
 	if (rbio->faila >= 0 || rbio->failb >= 0) {
@@ -2554,7 +2554,7 @@ static void raid56_parity_scrub_stripe(struct btrfs_raid_bio *rbio)
 
 	bio_list_init(&bio_list);
 
-	atomic_set(&rbio->error, 0);
+	atomic_set_unchecked(&rbio->error, 0);
 	/*
 	 * build a list of bios to read all the missing parts of this
 	 * stripe
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 00b8f37..c5e191f 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -248,7 +248,7 @@ void __btrfs_abort_transaction(struct btrfs_trans_handle *trans,
 		           function, line, errstr);
 		return;
 	}
-	ACCESS_ONCE(trans->transaction->aborted) = errno;
+	ACCESS_ONCE_RW(trans->transaction->aborted) = errno;
 	/* Wake up anybody who may be waiting on this transaction */
 	wake_up(&root->fs_info->transaction_wait);
 	wake_up(&root->fs_info->transaction_blocked_wait);
diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c
index 539e7b5..9de4167 100644
--- a/fs/btrfs/sysfs.c
+++ b/fs/btrfs/sysfs.c
@@ -483,7 +483,7 @@ static int addrm_unknown_feature_attrs(struct btrfs_fs_info *fs_info, bool add)
 	for (set = 0; set < FEAT_MAX; set++) {
 		int i;
 		struct attribute *attrs[2];
-		struct attribute_group agroup = {
+		attribute_group_no_const agroup = {
 			.name = "features",
 			.attrs = attrs,
 		};
diff --git a/fs/btrfs/tests/btrfs-tests.c b/fs/btrfs/tests/btrfs-tests.c
index f54bf45..6a69b0b 100644
--- a/fs/btrfs/tests/btrfs-tests.c
+++ b/fs/btrfs/tests/btrfs-tests.c
@@ -119,7 +119,7 @@ struct btrfs_fs_info *btrfs_alloc_dummy_fs_info(void)
 	fs_info->running_transaction = NULL;
 	fs_info->qgroup_tree = RB_ROOT;
 	fs_info->qgroup_ulist = NULL;
-	atomic64_set(&fs_info->tree_mod_seq, 0);
+	atomic64_set_unchecked(&fs_info->tree_mod_seq, 0);
 	INIT_LIST_HEAD(&fs_info->dirty_qgroups);
 	INIT_LIST_HEAD(&fs_info->dead_roots);
 	INIT_LIST_HEAD(&fs_info->tree_mod_seq_list);
diff --git a/fs/btrfs/tests/free-space-tests.c b/fs/btrfs/tests/free-space-tests.c
index 5142475..b290272 100644
--- a/fs/btrfs/tests/free-space-tests.c
+++ b/fs/btrfs/tests/free-space-tests.c
@@ -405,7 +405,7 @@ test_steal_space_from_bitmap_to_extent(struct btrfs_block_group_cache *cache)
 	int ret;
 	u64 offset;
 	u64 max_extent_size;
-	const struct btrfs_free_space_op test_free_space_ops = {
+	const btrfs_free_space_op_no_const test_free_space_ops = {
 		.recalc_thresholds = cache->free_space_ctl->op->recalc_thresholds,
 		.use_bitmap = test_use_bitmap,
 	};
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 43885e5..21cba1c 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -277,7 +277,7 @@ loop:
 	if (!RB_EMPTY_ROOT(&fs_info->tree_mod_log))
 		WARN(1, KERN_ERR "BTRFS: tree_mod_log rb tree not empty when "
 			"creating a fresh transaction\n");
-	atomic64_set(&fs_info->tree_mod_seq, 0);
+	atomic64_set_unchecked(&fs_info->tree_mod_seq, 0);
 
 	spin_lock_init(&cur_trans->delayed_refs.lock);
 
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 517d0cc..a22c356 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -173,7 +173,7 @@ static int start_log_trans(struct btrfs_trans_handle *trans,
 		root->log_start_pid = current->pid;
 	}
 
-	atomic_inc(&root->log_batch);
+	atomic_inc_unchecked(&root->log_batch);
 	atomic_inc(&root->log_writers);
 	if (ctx) {
 		int index = root->log_transid % 2;
@@ -2755,7 +2755,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
 		wait_log_commit(root, log_transid - 1);
 
 	while (1) {
-		int batch = atomic_read(&root->log_batch);
+		int batch = atomic_read_unchecked(&root->log_batch);
 		/* when we're on an ssd, just kick the log commit out */
 		if (!btrfs_test_opt(root, SSD) &&
 		    test_bit(BTRFS_ROOT_MULTI_LOG_TASKS, &root->state)) {
@@ -2764,7 +2764,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
 			mutex_lock(&root->log_mutex);
 		}
 		wait_for_writer(root);
-		if (batch == atomic_read(&root->log_batch))
+		if (batch == atomic_read_unchecked(&root->log_batch))
 			break;
 	}
 
@@ -2810,7 +2810,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
 	btrfs_init_log_ctx(&root_log_ctx);
 
 	mutex_lock(&log_root_tree->log_mutex);
-	atomic_inc(&log_root_tree->log_batch);
+	atomic_inc_unchecked(&log_root_tree->log_batch);
 	atomic_inc(&log_root_tree->log_writers);
 
 	index2 = log_root_tree->log_transid % 2;
diff --git a/fs/btrfs/tree-log.h b/fs/btrfs/tree-log.h
index a9f1b75..0df211d 100644
--- a/fs/btrfs/tree-log.h
+++ b/fs/btrfs/tree-log.h
@@ -45,7 +45,7 @@ static inline void btrfs_init_log_ctx(struct btrfs_log_ctx *ctx)
 static inline void btrfs_set_log_full_commit(struct btrfs_fs_info *fs_info,
 					     struct btrfs_trans_handle *trans)
 {
-	ACCESS_ONCE(fs_info->last_trans_log_full_commit) = trans->transid;
+	ACCESS_ONCE_RW(fs_info->last_trans_log_full_commit) = trans->transid;
 }
 
 static inline int btrfs_need_log_full_commit(struct btrfs_fs_info *fs_info,
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index bd0f45f..d28e89b 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -232,7 +232,7 @@ static struct btrfs_device *__alloc_device(void)
 
 	spin_lock_init(&dev->reada_lock);
 	atomic_set(&dev->reada_in_flight, 0);
-	atomic_set(&dev->dev_stats_ccnt, 0);
+	atomic_set_unchecked(&dev->dev_stats_ccnt, 0);
 	btrfs_device_data_ordered_init(dev);
 	INIT_RADIX_TREE(&dev->reada_zones, GFP_NOFS & ~__GFP_DIRECT_RECLAIM);
 	INIT_RADIX_TREE(&dev->reada_extents, GFP_NOFS & ~__GFP_DIRECT_RECLAIM);
@@ -5198,7 +5198,7 @@ static struct btrfs_bio *alloc_btrfs_bio(int total_stripes, int real_stripes)
 		sizeof(u64) * (total_stripes),
 		GFP_NOFS|__GFP_NOFAIL);
 
-	atomic_set(&bbio->error, 0);
+	atomic_set_unchecked(&bbio->error, 0);
 	atomic_set(&bbio->refs, 1);
 
 	return bbio;
@@ -5881,7 +5881,7 @@ static void btrfs_end_bio(struct bio *bio)
 	int is_orig_bio = 0;
 
 	if (bio->bi_error) {
-		atomic_inc(&bbio->error);
+		atomic_inc_unchecked(&bbio->error);
 		if (bio->bi_error == -EIO || bio->bi_error == -EREMOTEIO) {
 			unsigned int stripe_index =
 				btrfs_io_bio(bio)->stripe_index;
@@ -5919,7 +5919,7 @@ static void btrfs_end_bio(struct bio *bio)
 		/* only send an error to the higher layers if it is
 		 * beyond the tolerance of the btrfs bio
 		 */
-		if (atomic_read(&bbio->error) > bbio->max_errors) {
+		if (atomic_read_unchecked(&bbio->error) > bbio->max_errors) {
 			bio->bi_error = -EIO;
 		} else {
 			/*
@@ -6030,7 +6030,7 @@ static void submit_stripe_bio(struct btrfs_root *root, struct btrfs_bio *bbio,
 
 static void bbio_error(struct btrfs_bio *bbio, struct bio *bio, u64 logical)
 {
-	atomic_inc(&bbio->error);
+	atomic_inc_unchecked(&bbio->error);
 	if (atomic_dec_and_test(&bbio->stripes_pending)) {
 		/* Shoud be the original bio. */
 		WARN_ON(bio != bbio->orig_bio);
@@ -6827,10 +6827,10 @@ int btrfs_run_dev_stats(struct btrfs_trans_handle *trans,
 		if (!device->dev_stats_valid || !btrfs_dev_stats_dirty(device))
 			continue;
 
-		stats_cnt = atomic_read(&device->dev_stats_ccnt);
+		stats_cnt = atomic_read_unchecked(&device->dev_stats_ccnt);
 		ret = update_dev_stat_item(trans, dev_root, device);
 		if (!ret)
-			atomic_sub(stats_cnt, &device->dev_stats_ccnt);
+			atomic_sub_unchecked(stats_cnt, &device->dev_stats_ccnt);
 	}
 	mutex_unlock(&fs_devices->device_list_mutex);
 
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 1939ebd..2330751 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -148,8 +148,8 @@ struct btrfs_device {
 	int dev_stats_valid;
 
 	/* Counter to record the change of device stats */
-	atomic_t dev_stats_ccnt;
-	atomic_t dev_stat_values[BTRFS_DEV_STAT_VALUES_MAX];
+	atomic_unchecked_t dev_stats_ccnt;
+	atomic_unchecked_t dev_stat_values[BTRFS_DEV_STAT_VALUES_MAX];
 };
 
 /*
@@ -307,7 +307,7 @@ struct btrfs_bio {
 	struct bio *orig_bio;
 	unsigned long flags;
 	void *private;
-	atomic_t error;
+	atomic_unchecked_t error;
 	int max_errors;
 	int num_stripes;
 	int mirror_num;
@@ -507,21 +507,21 @@ int btrfs_remove_chunk(struct btrfs_trans_handle *trans,
 
 static inline int btrfs_dev_stats_dirty(struct btrfs_device *dev)
 {
-	return atomic_read(&dev->dev_stats_ccnt);
+	return atomic_read_unchecked(&dev->dev_stats_ccnt);
 }
 
 static inline void btrfs_dev_stat_inc(struct btrfs_device *dev,
 				      int index)
 {
-	atomic_inc(dev->dev_stat_values + index);
+	atomic_inc_unchecked(dev->dev_stat_values + index);
 	smp_mb__before_atomic();
-	atomic_inc(&dev->dev_stats_ccnt);
+	atomic_inc_unchecked(&dev->dev_stats_ccnt);
 }
 
 static inline int btrfs_dev_stat_read(struct btrfs_device *dev,
 				      int index)
 {
-	return atomic_read(dev->dev_stat_values + index);
+	return atomic_read_unchecked(dev->dev_stat_values + index);
 }
 
 static inline int btrfs_dev_stat_read_and_reset(struct btrfs_device *dev,
@@ -529,18 +529,18 @@ static inline int btrfs_dev_stat_read_and_reset(struct btrfs_device *dev,
 {
 	int ret;
 
-	ret = atomic_xchg(dev->dev_stat_values + index, 0);
+	ret = atomic_xchg_unchecked(dev->dev_stat_values + index, 0);
 	smp_mb__before_atomic();
-	atomic_inc(&dev->dev_stats_ccnt);
+	atomic_inc_unchecked(&dev->dev_stats_ccnt);
 	return ret;
 }
 
 static inline void btrfs_dev_stat_set(struct btrfs_device *dev,
 				      int index, unsigned long val)
 {
-	atomic_set(dev->dev_stat_values + index, val);
+	atomic_set_unchecked(dev->dev_stat_values + index, val);
 	smp_mb__before_atomic();
-	atomic_inc(&dev->dev_stats_ccnt);
+	atomic_inc_unchecked(&dev->dev_stats_ccnt);
 }
 
 static inline void btrfs_dev_stat_reset(struct btrfs_device *dev,
diff --git a/fs/buffer.c b/fs/buffer.c
index af0d9a8..2437a67 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -3406,7 +3406,7 @@ void __init buffer_init(void)
 	bh_cachep = kmem_cache_create("buffer_head",
 			sizeof(struct buffer_head), 0,
 				(SLAB_RECLAIM_ACCOUNT|SLAB_PANIC|
-				SLAB_MEM_SPREAD),
+				SLAB_MEM_SPREAD|SLAB_NO_SANITIZE),
 				NULL);
 
 	/*
diff --git a/fs/cachefiles/bind.c b/fs/cachefiles/bind.c
index 6af790f..ec4c1e6 100644
--- a/fs/cachefiles/bind.c
+++ b/fs/cachefiles/bind.c
@@ -39,13 +39,11 @@ int cachefiles_daemon_bind(struct cachefiles_cache *cache, char *args)
 	       args);
 
 	/* start by checking things over */
-	ASSERT(cache->fstop_percent >= 0 &&
-	       cache->fstop_percent < cache->fcull_percent &&
+	ASSERT(cache->fstop_percent < cache->fcull_percent &&
 	       cache->fcull_percent < cache->frun_percent &&
 	       cache->frun_percent  < 100);
 
-	ASSERT(cache->bstop_percent >= 0 &&
-	       cache->bstop_percent < cache->bcull_percent &&
+	ASSERT(cache->bstop_percent < cache->bcull_percent &&
 	       cache->bcull_percent < cache->brun_percent &&
 	       cache->brun_percent  < 100);
 
diff --git a/fs/cachefiles/daemon.c b/fs/cachefiles/daemon.c
index 1ee54ff..ba89748 100644
--- a/fs/cachefiles/daemon.c
+++ b/fs/cachefiles/daemon.c
@@ -176,8 +176,8 @@ static ssize_t cachefiles_daemon_read(struct file *file, char __user *_buffer,
 	cachefiles_has_space(cache, 0, 0);
 
 	/* summarise */
-	f_released = atomic_xchg(&cache->f_released, 0);
-	b_released = atomic_long_xchg(&cache->b_released, 0);
+	f_released = atomic_xchg_unchecked(&cache->f_released, 0);
+	b_released = atomic_long_xchg_unchecked(&cache->b_released, 0);
 	clear_bit(CACHEFILES_STATE_CHANGED, &cache->flags);
 
 	n = snprintf(buffer, sizeof(buffer),
@@ -203,7 +203,7 @@ static ssize_t cachefiles_daemon_read(struct file *file, char __user *_buffer,
 	if (n > buflen)
 		return -EMSGSIZE;
 
-	if (copy_to_user(_buffer, buffer, n) != 0)
+	if (n > sizeof(buffer) || copy_to_user(_buffer, buffer, n) != 0)
 		return -EFAULT;
 
 	return n;
@@ -229,7 +229,7 @@ static ssize_t cachefiles_daemon_write(struct file *file,
 	if (test_bit(CACHEFILES_DEAD, &cache->flags))
 		return -EIO;
 
-	if (datalen < 0 || datalen > PAGE_SIZE - 1)
+	if (datalen > PAGE_SIZE - 1)
 		return -EOPNOTSUPP;
 
 	/* drag the command string into the kernel so we can parse it */
@@ -386,7 +386,7 @@ static int cachefiles_daemon_fstop(struct cachefiles_cache *cache, char *args)
 	if (args[0] != '%' || args[1] != '\0')
 		return -EINVAL;
 
-	if (fstop < 0 || fstop >= cache->fcull_percent)
+	if (fstop >= cache->fcull_percent)
 		return cachefiles_daemon_range_error(cache, args);
 
 	cache->fstop_percent = fstop;
@@ -458,7 +458,7 @@ static int cachefiles_daemon_bstop(struct cachefiles_cache *cache, char *args)
 	if (args[0] != '%' || args[1] != '\0')
 		return -EINVAL;
 
-	if (bstop < 0 || bstop >= cache->bcull_percent)
+	if (bstop >= cache->bcull_percent)
 		return cachefiles_daemon_range_error(cache, args);
 
 	cache->bstop_percent = bstop;
diff --git a/fs/cachefiles/internal.h b/fs/cachefiles/internal.h
index 2fcde1a..5986a27 100644
--- a/fs/cachefiles/internal.h
+++ b/fs/cachefiles/internal.h
@@ -65,9 +65,9 @@ struct cachefiles_cache {
 	wait_queue_head_t		daemon_pollwq;	/* poll waitqueue for daemon */
 	struct rb_root			active_nodes;	/* active nodes (can't be culled) */
 	rwlock_t			active_lock;	/* lock for active_nodes */
-	atomic_t			gravecounter;	/* graveyard uniquifier */
-	atomic_t			f_released;	/* number of objects released lately */
-	atomic_long_t			b_released;	/* number of blocks released lately */
+	atomic_unchecked_t		gravecounter;	/* graveyard uniquifier */
+	atomic_unchecked_t		f_released;	/* number of objects released lately */
+	atomic_long_unchecked_t		b_released;	/* number of blocks released lately */
 	unsigned			frun_percent;	/* when to stop culling (% files) */
 	unsigned			fcull_percent;	/* when to start culling (% files) */
 	unsigned			fstop_percent;	/* when to stop allocating (% files) */
@@ -181,19 +181,19 @@ extern int cachefiles_check_in_use(struct cachefiles_cache *cache,
  * proc.c
  */
 #ifdef CONFIG_CACHEFILES_HISTOGRAM
-extern atomic_t cachefiles_lookup_histogram[HZ];
-extern atomic_t cachefiles_mkdir_histogram[HZ];
-extern atomic_t cachefiles_create_histogram[HZ];
+extern atomic_unchecked_t cachefiles_lookup_histogram[HZ];
+extern atomic_unchecked_t cachefiles_mkdir_histogram[HZ];
+extern atomic_unchecked_t cachefiles_create_histogram[HZ];
 
 extern int __init cachefiles_proc_init(void);
 extern void cachefiles_proc_cleanup(void);
 static inline
-void cachefiles_hist(atomic_t histogram[], unsigned long start_jif)
+void cachefiles_hist(atomic_unchecked_t histogram[], unsigned long start_jif)
 {
 	unsigned long jif = jiffies - start_jif;
 	if (jif >= HZ)
 		jif = HZ - 1;
-	atomic_inc(&histogram[jif]);
+	atomic_inc_unchecked(&histogram[jif]);
 }
 
 #else
diff --git a/fs/cachefiles/namei.c b/fs/cachefiles/namei.c
index 4ae7500..fef2d10 100644
--- a/fs/cachefiles/namei.c
+++ b/fs/cachefiles/namei.c
@@ -273,9 +273,9 @@ void cachefiles_mark_object_inactive(struct cachefiles_cache *cache,
 	/* This object can now be culled, so we need to let the daemon know
 	 * that there is something it can remove if it needs to.
 	 */
-	atomic_long_add(d_backing_inode(object->dentry)->i_blocks,
+	atomic_long_add_unchecked(d_backing_inode(object->dentry)->i_blocks,
 			&cache->b_released);
-	if (atomic_inc_return(&cache->f_released))
+	if (atomic_inc_return_unchecked(&cache->f_released))
 		cachefiles_state_changed(cache);
 }
 
@@ -334,7 +334,7 @@ try_again:
 	/* first step is to make up a grave dentry in the graveyard */
 	sprintf(nbuffer, "%08x%08x",
 		(uint32_t) get_seconds(),
-		(uint32_t) atomic_inc_return(&cache->gravecounter));
+		(uint32_t) atomic_inc_return_unchecked(&cache->gravecounter));
 
 	/* do the multiway lock magic */
 	trap = lock_rename(cache->graveyard, dir);
diff --git a/fs/cachefiles/proc.c b/fs/cachefiles/proc.c
index eccd339..4c1d995 100644
--- a/fs/cachefiles/proc.c
+++ b/fs/cachefiles/proc.c
@@ -14,9 +14,9 @@
 #include <linux/seq_file.h>
 #include "internal.h"
 
-atomic_t cachefiles_lookup_histogram[HZ];
-atomic_t cachefiles_mkdir_histogram[HZ];
-atomic_t cachefiles_create_histogram[HZ];
+atomic_unchecked_t cachefiles_lookup_histogram[HZ];
+atomic_unchecked_t cachefiles_mkdir_histogram[HZ];
+atomic_unchecked_t cachefiles_create_histogram[HZ];
 
 /*
  * display the latency histogram
@@ -35,9 +35,9 @@ static int cachefiles_histogram_show(struct seq_file *m, void *v)
 		return 0;
 	default:
 		index = (unsigned long) v - 3;
-		x = atomic_read(&cachefiles_lookup_histogram[index]);
-		y = atomic_read(&cachefiles_mkdir_histogram[index]);
-		z = atomic_read(&cachefiles_create_histogram[index]);
+		x = atomic_read_unchecked(&cachefiles_lookup_histogram[index]);
+		y = atomic_read_unchecked(&cachefiles_mkdir_histogram[index]);
+		z = atomic_read_unchecked(&cachefiles_create_histogram[index]);
 		if (x == 0 && y == 0 && z == 0)
 			return 0;
 
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index 4fb2bbc..2f8aa11 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -197,10 +197,18 @@ static int __dcache_readdir(struct file *file,  struct dir_context *ctx,
 		spin_unlock(&dentry->d_lock);
 
 		if (emit_dentry) {
+			char d_name[DNAME_INLINE_LEN];
+			const unsigned char *name;
+
 			dout(" %llu (%llu) dentry %p %pd %p\n", di->offset, ctx->pos,
 			     dentry, dentry, d_inode(dentry));
 			ctx->pos = di->offset;
-			if (!dir_emit(ctx, dentry->d_name.name,
+			name = dentry->d_name.name;
+			if (name == dentry->d_iname) {
+				memcpy(d_name, name, dentry->d_name.len);
+				name = d_name;
+			}
+			if (!dir_emit(ctx, name,
 				      dentry->d_name.len,
 				      ceph_translate_ino(dentry->d_sb,
 							 d_inode(dentry)->i_ino),
@@ -242,7 +250,7 @@ static int ceph_readdir(struct file *file, struct dir_context *ctx)
 	struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
 	struct ceph_mds_client *mdsc = fsc->mdsc;
 	unsigned frag = fpos_frag(ctx->pos);
-	int off = fpos_off(ctx->pos);
+	unsigned int off = fpos_off(ctx->pos);
 	int err;
 	u32 ftype;
 	struct ceph_mds_reply_info_parsed *rinfo;
diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index f12d5e2..4d49bf1 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -904,7 +904,7 @@ static int ceph_compare_super(struct super_block *sb, void *data)
 /*
  * construct our own bdi so we can control readahead, etc.
  */
-static atomic_long_t bdi_seq = ATOMIC_LONG_INIT(0);
+static atomic_long_unchecked_t bdi_seq = ATOMIC_LONG_INIT(0);
 
 static int ceph_register_bdi(struct super_block *sb,
 			     struct ceph_fs_client *fsc)
@@ -921,7 +921,7 @@ static int ceph_register_bdi(struct super_block *sb,
 			VM_MAX_READAHEAD * 1024 / PAGE_SIZE;
 
 	err = bdi_register(&fsc->backing_dev_info, NULL, "ceph-%ld",
-			   atomic_long_inc_return(&bdi_seq));
+			   atomic_long_inc_return_unchecked(&bdi_seq));
 	if (!err)
 		sb->s_bdi = &fsc->backing_dev_info;
 	return err;
diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index 788e191..ca209d6 100644
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -265,8 +265,8 @@ static ssize_t cifs_stats_proc_write(struct file *file,
 	rc = kstrtobool_from_user(buffer, count, &bv);
 	if (rc == 0) {
 #ifdef CONFIG_CIFS_STATS2
-		atomic_set(&totBufAllocCount, 0);
-		atomic_set(&totSmBufAllocCount, 0);
+		atomic_set_unchecked(&totBufAllocCount, 0);
+		atomic_set_unchecked(&totSmBufAllocCount, 0);
 #endif /* CONFIG_CIFS_STATS2 */
 		spin_lock(&cifs_tcp_ses_lock);
 		list_for_each(tmp1, &cifs_tcp_ses_list) {
@@ -279,7 +279,7 @@ static ssize_t cifs_stats_proc_write(struct file *file,
 					tcon = list_entry(tmp3,
 							  struct cifs_tcon,
 							  tcon_list);
-					atomic_set(&tcon->num_smbs_sent, 0);
+					atomic_set_unchecked(&tcon->num_smbs_sent, 0);
 					if (server->ops->clear_stats)
 						server->ops->clear_stats(tcon);
 				}
@@ -313,8 +313,8 @@ static int cifs_stats_proc_show(struct seq_file *m, void *v)
 			smBufAllocCount.counter, cifs_min_small);
 #ifdef CONFIG_CIFS_STATS2
 	seq_printf(m, "Total Large %d Small %d Allocations\n",
-				atomic_read(&totBufAllocCount),
-				atomic_read(&totSmBufAllocCount));
+				atomic_read_unchecked(&totBufAllocCount),
+				atomic_read_unchecked(&totSmBufAllocCount));
 #endif /* CONFIG_CIFS_STATS2 */
 
 	seq_printf(m, "Operations (MIDs): %d\n", atomic_read(&midCount));
@@ -343,7 +343,7 @@ static int cifs_stats_proc_show(struct seq_file *m, void *v)
 				if (tcon->need_reconnect)
 					seq_puts(m, "\tDISCONNECTED ");
 				seq_printf(m, "\nSMBs: %d",
-					   atomic_read(&tcon->num_smbs_sent));
+					   atomic_read_unchecked(&tcon->num_smbs_sent));
 				if (server->ops->print_stats)
 					server->ops->print_stats(m, tcon);
 			}
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 89201564..eafd380 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -1151,7 +1151,7 @@ cifs_init_request_bufs(void)
 */
 	cifs_req_cachep = kmem_cache_create("cifs_request",
 					    CIFSMaxBufSize + max_hdr_size, 0,
-					    SLAB_HWCACHE_ALIGN, NULL);
+					    SLAB_HWCACHE_ALIGN | SLAB_USERCOPY, NULL);
 	if (cifs_req_cachep == NULL)
 		return -ENOMEM;
 
@@ -1178,7 +1178,7 @@ cifs_init_request_bufs(void)
 	efficient to alloc 1 per page off the slab compared to 17K (5page)
 	alloc of large cifs buffers even when page debugging is on */
 	cifs_sm_req_cachep = kmem_cache_create("cifs_small_rq",
-			MAX_CIFS_SMALL_BUFFER_SIZE, 0, SLAB_HWCACHE_ALIGN,
+			MAX_CIFS_SMALL_BUFFER_SIZE, 0, SLAB_HWCACHE_ALIGN | SLAB_USERCOPY,
 			NULL);
 	if (cifs_sm_req_cachep == NULL) {
 		mempool_destroy(cifs_req_poolp);
@@ -1263,8 +1263,8 @@ init_cifs(void)
 	atomic_set(&bufAllocCount, 0);
 	atomic_set(&smBufAllocCount, 0);
 #ifdef CONFIG_CIFS_STATS2
-	atomic_set(&totBufAllocCount, 0);
-	atomic_set(&totSmBufAllocCount, 0);
+	atomic_set_unchecked(&totBufAllocCount, 0);
+	atomic_set_unchecked(&totSmBufAllocCount, 0);
 #endif /* CONFIG_CIFS_STATS2 */
 
 	atomic_set(&midCount, 0);
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index f2cc0b3..f5168a7 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -843,35 +843,35 @@ struct cifs_tcon {
 	__u16 Flags;		/* optional support bits */
 	enum statusEnum tidStatus;
 #ifdef CONFIG_CIFS_STATS
-	atomic_t num_smbs_sent;
+	atomic_unchecked_t num_smbs_sent;
 	union {
 		struct {
-			atomic_t num_writes;
-			atomic_t num_reads;
-			atomic_t num_flushes;
-			atomic_t num_oplock_brks;
-			atomic_t num_opens;
-			atomic_t num_closes;
-			atomic_t num_deletes;
-			atomic_t num_mkdirs;
-			atomic_t num_posixopens;
-			atomic_t num_posixmkdirs;
-			atomic_t num_rmdirs;
-			atomic_t num_renames;
-			atomic_t num_t2renames;
-			atomic_t num_ffirst;
-			atomic_t num_fnext;
-			atomic_t num_fclose;
-			atomic_t num_hardlinks;
-			atomic_t num_symlinks;
-			atomic_t num_locks;
-			atomic_t num_acl_get;
-			atomic_t num_acl_set;
+			atomic_unchecked_t num_writes;
+			atomic_unchecked_t num_reads;
+			atomic_unchecked_t num_flushes;
+			atomic_unchecked_t num_oplock_brks;
+			atomic_unchecked_t num_opens;
+			atomic_unchecked_t num_closes;
+			atomic_unchecked_t num_deletes;
+			atomic_unchecked_t num_mkdirs;
+			atomic_unchecked_t num_posixopens;
+			atomic_unchecked_t num_posixmkdirs;
+			atomic_unchecked_t num_rmdirs;
+			atomic_unchecked_t num_renames;
+			atomic_unchecked_t num_t2renames;
+			atomic_unchecked_t num_ffirst;
+			atomic_unchecked_t num_fnext;
+			atomic_unchecked_t num_fclose;
+			atomic_unchecked_t num_hardlinks;
+			atomic_unchecked_t num_symlinks;
+			atomic_unchecked_t num_locks;
+			atomic_unchecked_t num_acl_get;
+			atomic_unchecked_t num_acl_set;
 		} cifs_stats;
 #ifdef CONFIG_CIFS_SMB2
 		struct {
-			atomic_t smb2_com_sent[NUMBER_OF_SMB2_COMMANDS];
-			atomic_t smb2_com_failed[NUMBER_OF_SMB2_COMMANDS];
+			atomic_unchecked_t smb2_com_sent[NUMBER_OF_SMB2_COMMANDS];
+			atomic_unchecked_t smb2_com_failed[NUMBER_OF_SMB2_COMMANDS];
 		} smb2_stats;
 #endif /* CONFIG_CIFS_SMB2 */
 	} stats;
@@ -1221,7 +1221,7 @@ convert_delimiter(char *path, char delim)
 }
 
 #ifdef CONFIG_CIFS_STATS
-#define cifs_stats_inc atomic_inc
+#define cifs_stats_inc atomic_inc_unchecked
 
 static inline void cifs_stats_bytes_written(struct cifs_tcon *tcon,
 					    unsigned int bytes)
@@ -1588,8 +1588,8 @@ GLOBAL_EXTERN atomic_t tconInfoReconnectCount;
 /* Various Debug counters */
 GLOBAL_EXTERN atomic_t bufAllocCount;    /* current number allocated  */
 #ifdef CONFIG_CIFS_STATS2
-GLOBAL_EXTERN atomic_t totBufAllocCount; /* total allocated over all time */
-GLOBAL_EXTERN atomic_t totSmBufAllocCount;
+GLOBAL_EXTERN atomic_unchecked_t totBufAllocCount; /* total allocated over all time */
+GLOBAL_EXTERN atomic_unchecked_t totSmBufAllocCount;
 #endif
 GLOBAL_EXTERN atomic_t smBufAllocCount;
 GLOBAL_EXTERN atomic_t midCount;
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index c03d074..0465e40 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -1372,7 +1372,7 @@ cifs_free_llist(struct list_head *llist)
 
 int
 cifs_unlock_range(struct cifsFileInfo *cfile, struct file_lock *flock,
-		  unsigned int xid)
+		  const unsigned int xid)
 {
 	int rc = 0, stored_rc;
 	int types[] = {LOCKING_ANDX_LARGE_FILES,
@@ -2054,10 +2054,14 @@ static int cifs_writepages(struct address_space *mapping,
 		index = mapping->writeback_index; /* Start from prev offset */
 		end = -1;
 	} else {
-		index = wbc->range_start >> PAGE_SHIFT;
-		end = wbc->range_end >> PAGE_SHIFT;
-		if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX)
+		if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX) {
 			range_whole = true;
+			index = 0;
+			end = ULONG_MAX;
+		} else {
+			index = wbc->range_start >> PAGE_SHIFT;
+			end = wbc->range_end >> PAGE_SHIFT;
+		}
 		scanned = true;
 	}
 	server = cifs_sb_master_tcon(cifs_sb)->ses->server;
@@ -2531,7 +2535,7 @@ cifs_write_from_iter(loff_t offset, size_t len, struct iov_iter *from,
 		wdata->pid = pid;
 		wdata->bytes = cur_len;
 		wdata->pagesz = PAGE_SIZE;
-		wdata->tailsz = cur_len - ((nr_pages - 1) * PAGE_SIZE);
+		wdata->tailsz = cur_len - nr_pages * PAGE_SIZE + PAGE_SIZE;
 		wdata->credits = credits;
 
 		if (!wdata->cfile->invalidHandle ||
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index 813fe13..eac10c6 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -170,7 +170,7 @@ cifs_buf_get(void)
 		memset(ret_buf, 0, buf_size + 3);
 		atomic_inc(&bufAllocCount);
 #ifdef CONFIG_CIFS_STATS2
-		atomic_inc(&totBufAllocCount);
+		atomic_inc_unchecked(&totBufAllocCount);
 #endif /* CONFIG_CIFS_STATS2 */
 	}
 
@@ -205,7 +205,7 @@ cifs_small_buf_get(void)
 	/*	memset(ret_buf, 0, sizeof(struct smb_hdr) + 27);*/
 		atomic_inc(&smBufAllocCount);
 #ifdef CONFIG_CIFS_STATS2
-		atomic_inc(&totSmBufAllocCount);
+		atomic_inc_unchecked(&totSmBufAllocCount);
 #endif /* CONFIG_CIFS_STATS2 */
 
 	}
diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
index fc537c2..47d654c 100644
--- a/fs/cifs/smb1ops.c
+++ b/fs/cifs/smb1ops.c
@@ -622,27 +622,27 @@ static void
 cifs_clear_stats(struct cifs_tcon *tcon)
 {
 #ifdef CONFIG_CIFS_STATS
-	atomic_set(&tcon->stats.cifs_stats.num_writes, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_reads, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_flushes, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_oplock_brks, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_opens, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_posixopens, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_posixmkdirs, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_closes, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_deletes, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_mkdirs, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_rmdirs, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_renames, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_t2renames, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_ffirst, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_fnext, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_fclose, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_hardlinks, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_symlinks, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_locks, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_acl_get, 0);
-	atomic_set(&tcon->stats.cifs_stats.num_acl_set, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_writes, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_reads, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_flushes, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_oplock_brks, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_opens, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_posixopens, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_posixmkdirs, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_closes, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_deletes, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_mkdirs, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_rmdirs, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_renames, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_t2renames, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_ffirst, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_fnext, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_fclose, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_hardlinks, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_symlinks, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_locks, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_acl_get, 0);
+	atomic_set_unchecked(&tcon->stats.cifs_stats.num_acl_set, 0);
 #endif
 }
 
@@ -651,36 +651,36 @@ cifs_print_stats(struct seq_file *m, struct cifs_tcon *tcon)
 {
 #ifdef CONFIG_CIFS_STATS
 	seq_printf(m, " Oplocks breaks: %d",
-		   atomic_read(&tcon->stats.cifs_stats.num_oplock_brks));
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_oplock_brks));
 	seq_printf(m, "\nReads:  %d Bytes: %llu",
-		   atomic_read(&tcon->stats.cifs_stats.num_reads),
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_reads),
 		   (long long)(tcon->bytes_read));
 	seq_printf(m, "\nWrites: %d Bytes: %llu",
-		   atomic_read(&tcon->stats.cifs_stats.num_writes),
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_writes),
 		   (long long)(tcon->bytes_written));
 	seq_printf(m, "\nFlushes: %d",
-		   atomic_read(&tcon->stats.cifs_stats.num_flushes));
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_flushes));
 	seq_printf(m, "\nLocks: %d HardLinks: %d Symlinks: %d",
-		   atomic_read(&tcon->stats.cifs_stats.num_locks),
-		   atomic_read(&tcon->stats.cifs_stats.num_hardlinks),
-		   atomic_read(&tcon->stats.cifs_stats.num_symlinks));
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_locks),
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_hardlinks),
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_symlinks));
 	seq_printf(m, "\nOpens: %d Closes: %d Deletes: %d",
-		   atomic_read(&tcon->stats.cifs_stats.num_opens),
-		   atomic_read(&tcon->stats.cifs_stats.num_closes),
-		   atomic_read(&tcon->stats.cifs_stats.num_deletes));
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_opens),
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_closes),
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_deletes));
 	seq_printf(m, "\nPosix Opens: %d Posix Mkdirs: %d",
-		   atomic_read(&tcon->stats.cifs_stats.num_posixopens),
-		   atomic_read(&tcon->stats.cifs_stats.num_posixmkdirs));
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_posixopens),
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_posixmkdirs));
 	seq_printf(m, "\nMkdirs: %d Rmdirs: %d",
-		   atomic_read(&tcon->stats.cifs_stats.num_mkdirs),
-		   atomic_read(&tcon->stats.cifs_stats.num_rmdirs));
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_mkdirs),
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_rmdirs));
 	seq_printf(m, "\nRenames: %d T2 Renames %d",
-		   atomic_read(&tcon->stats.cifs_stats.num_renames),
-		   atomic_read(&tcon->stats.cifs_stats.num_t2renames));
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_renames),
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_t2renames));
 	seq_printf(m, "\nFindFirst: %d FNext %d FClose %d",
-		   atomic_read(&tcon->stats.cifs_stats.num_ffirst),
-		   atomic_read(&tcon->stats.cifs_stats.num_fnext),
-		   atomic_read(&tcon->stats.cifs_stats.num_fclose));
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_ffirst),
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_fnext),
+		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_fclose));
 #endif
 }
 
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 3525ed7..ac8afb7 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -427,8 +427,8 @@ smb2_clear_stats(struct cifs_tcon *tcon)
 #ifdef CONFIG_CIFS_STATS
 	int i;
 	for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) {
-		atomic_set(&tcon->stats.smb2_stats.smb2_com_sent[i], 0);
-		atomic_set(&tcon->stats.smb2_stats.smb2_com_failed[i], 0);
+		atomic_set_unchecked(&tcon->stats.smb2_stats.smb2_com_sent[i], 0);
+		atomic_set_unchecked(&tcon->stats.smb2_stats.smb2_com_failed[i], 0);
 	}
 #endif
 }
@@ -468,65 +468,65 @@ static void
 smb2_print_stats(struct seq_file *m, struct cifs_tcon *tcon)
 {
 #ifdef CONFIG_CIFS_STATS
-	atomic_t *sent = tcon->stats.smb2_stats.smb2_com_sent;
-	atomic_t *failed = tcon->stats.smb2_stats.smb2_com_failed;
+	atomic_unchecked_t *sent = tcon->stats.smb2_stats.smb2_com_sent;
+	atomic_unchecked_t *failed = tcon->stats.smb2_stats.smb2_com_failed;
 	seq_printf(m, "\nNegotiates: %d sent %d failed",
-		   atomic_read(&sent[SMB2_NEGOTIATE_HE]),
-		   atomic_read(&failed[SMB2_NEGOTIATE_HE]));
+		   atomic_read_unchecked(&sent[SMB2_NEGOTIATE_HE]),
+		   atomic_read_unchecked(&failed[SMB2_NEGOTIATE_HE]));
 	seq_printf(m, "\nSessionSetups: %d sent %d failed",
-		   atomic_read(&sent[SMB2_SESSION_SETUP_HE]),
-		   atomic_read(&failed[SMB2_SESSION_SETUP_HE]));
+		   atomic_read_unchecked(&sent[SMB2_SESSION_SETUP_HE]),
+		   atomic_read_unchecked(&failed[SMB2_SESSION_SETUP_HE]));
 	seq_printf(m, "\nLogoffs: %d sent %d failed",
-		   atomic_read(&sent[SMB2_LOGOFF_HE]),
-		   atomic_read(&failed[SMB2_LOGOFF_HE]));
+		   atomic_read_unchecked(&sent[SMB2_LOGOFF_HE]),
+		   atomic_read_unchecked(&failed[SMB2_LOGOFF_HE]));
 	seq_printf(m, "\nTreeConnects: %d sent %d failed",
-		   atomic_read(&sent[SMB2_TREE_CONNECT_HE]),
-		   atomic_read(&failed[SMB2_TREE_CONNECT_HE]));
+		   atomic_read_unchecked(&sent[SMB2_TREE_CONNECT_HE]),
+		   atomic_read_unchecked(&failed[SMB2_TREE_CONNECT_HE]));
 	seq_printf(m, "\nTreeDisconnects: %d sent %d failed",
-		   atomic_read(&sent[SMB2_TREE_DISCONNECT_HE]),
-		   atomic_read(&failed[SMB2_TREE_DISCONNECT_HE]));
+		   atomic_read_unchecked(&sent[SMB2_TREE_DISCONNECT_HE]),
+		   atomic_read_unchecked(&failed[SMB2_TREE_DISCONNECT_HE]));
 	seq_printf(m, "\nCreates: %d sent %d failed",
-		   atomic_read(&sent[SMB2_CREATE_HE]),
-		   atomic_read(&failed[SMB2_CREATE_HE]));
+		   atomic_read_unchecked(&sent[SMB2_CREATE_HE]),
+		   atomic_read_unchecked(&failed[SMB2_CREATE_HE]));
 	seq_printf(m, "\nCloses: %d sent %d failed",
-		   atomic_read(&sent[SMB2_CLOSE_HE]),
-		   atomic_read(&failed[SMB2_CLOSE_HE]));
+		   atomic_read_unchecked(&sent[SMB2_CLOSE_HE]),
+		   atomic_read_unchecked(&failed[SMB2_CLOSE_HE]));
 	seq_printf(m, "\nFlushes: %d sent %d failed",
-		   atomic_read(&sent[SMB2_FLUSH_HE]),
-		   atomic_read(&failed[SMB2_FLUSH_HE]));
+		   atomic_read_unchecked(&sent[SMB2_FLUSH_HE]),
+		   atomic_read_unchecked(&failed[SMB2_FLUSH_HE]));
 	seq_printf(m, "\nReads: %d sent %d failed",
-		   atomic_read(&sent[SMB2_READ_HE]),
-		   atomic_read(&failed[SMB2_READ_HE]));
+		   atomic_read_unchecked(&sent[SMB2_READ_HE]),
+		   atomic_read_unchecked(&failed[SMB2_READ_HE]));
 	seq_printf(m, "\nWrites: %d sent %d failed",
-		   atomic_read(&sent[SMB2_WRITE_HE]),
-		   atomic_read(&failed[SMB2_WRITE_HE]));
+		   atomic_read_unchecked(&sent[SMB2_WRITE_HE]),
+		   atomic_read_unchecked(&failed[SMB2_WRITE_HE]));
 	seq_printf(m, "\nLocks: %d sent %d failed",
-		   atomic_read(&sent[SMB2_LOCK_HE]),
-		   atomic_read(&failed[SMB2_LOCK_HE]));
+		   atomic_read_unchecked(&sent[SMB2_LOCK_HE]),
+		   atomic_read_unchecked(&failed[SMB2_LOCK_HE]));
 	seq_printf(m, "\nIOCTLs: %d sent %d failed",
-		   atomic_read(&sent[SMB2_IOCTL_HE]),
-		   atomic_read(&failed[SMB2_IOCTL_HE]));
+		   atomic_read_unchecked(&sent[SMB2_IOCTL_HE]),
+		   atomic_read_unchecked(&failed[SMB2_IOCTL_HE]));
 	seq_printf(m, "\nCancels: %d sent %d failed",
-		   atomic_read(&sent[SMB2_CANCEL_HE]),
-		   atomic_read(&failed[SMB2_CANCEL_HE]));
+		   atomic_read_unchecked(&sent[SMB2_CANCEL_HE]),
+		   atomic_read_unchecked(&failed[SMB2_CANCEL_HE]));
 	seq_printf(m, "\nEchos: %d sent %d failed",
-		   atomic_read(&sent[SMB2_ECHO_HE]),
-		   atomic_read(&failed[SMB2_ECHO_HE]));
+		   atomic_read_unchecked(&sent[SMB2_ECHO_HE]),
+		   atomic_read_unchecked(&failed[SMB2_ECHO_HE]));
 	seq_printf(m, "\nQueryDirectories: %d sent %d failed",
-		   atomic_read(&sent[SMB2_QUERY_DIRECTORY_HE]),
-		   atomic_read(&failed[SMB2_QUERY_DIRECTORY_HE]));
+		   atomic_read_unchecked(&sent[SMB2_QUERY_DIRECTORY_HE]),
+		   atomic_read_unchecked(&failed[SMB2_QUERY_DIRECTORY_HE]));
 	seq_printf(m, "\nChangeNotifies: %d sent %d failed",
-		   atomic_read(&sent[SMB2_CHANGE_NOTIFY_HE]),
-		   atomic_read(&failed[SMB2_CHANGE_NOTIFY_HE]));
+		   atomic_read_unchecked(&sent[SMB2_CHANGE_NOTIFY_HE]),
+		   atomic_read_unchecked(&failed[SMB2_CHANGE_NOTIFY_HE]));
 	seq_printf(m, "\nQueryInfos: %d sent %d failed",
-		   atomic_read(&sent[SMB2_QUERY_INFO_HE]),
-		   atomic_read(&failed[SMB2_QUERY_INFO_HE]));
+		   atomic_read_unchecked(&sent[SMB2_QUERY_INFO_HE]),
+		   atomic_read_unchecked(&failed[SMB2_QUERY_INFO_HE]));
 	seq_printf(m, "\nSetInfos: %d sent %d failed",
-		   atomic_read(&sent[SMB2_SET_INFO_HE]),
-		   atomic_read(&failed[SMB2_SET_INFO_HE]));
+		   atomic_read_unchecked(&sent[SMB2_SET_INFO_HE]),
+		   atomic_read_unchecked(&failed[SMB2_SET_INFO_HE]));
 	seq_printf(m, "\nOplockBreaks: %d sent %d failed",
-		   atomic_read(&sent[SMB2_OPLOCK_BREAK_HE]),
-		   atomic_read(&failed[SMB2_OPLOCK_BREAK_HE]));
+		   atomic_read_unchecked(&sent[SMB2_OPLOCK_BREAK_HE]),
+		   atomic_read_unchecked(&failed[SMB2_OPLOCK_BREAK_HE]));
 #endif
 }
 
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 8f38e33..90f716a 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -2388,8 +2388,7 @@ SMB2_query_directory(const unsigned int xid, struct cifs_tcon *tcon,
 	default:
 		cifs_dbg(VFS, "info level %u isn't supported\n",
 			 srch_inf->info_level);
-		rc = -EINVAL;
-		goto qdir_exit;
+		return -EINVAL;
 	}
 
 	req->FileIndex = cpu_to_le32(index);
diff --git a/fs/coda/cache.c b/fs/coda/cache.c
index 5bb630a..043dc70 100644
--- a/fs/coda/cache.c
+++ b/fs/coda/cache.c
@@ -24,7 +24,7 @@
 #include "coda_linux.h"
 #include "coda_cache.h"
 
-static atomic_t permission_epoch = ATOMIC_INIT(0);
+static atomic_unchecked_t permission_epoch = ATOMIC_INIT(0);
 
 /* replace or extend an acl cache hit */
 void coda_cache_enter(struct inode *inode, int mask)
@@ -32,7 +32,7 @@ void coda_cache_enter(struct inode *inode, int mask)
 	struct coda_inode_info *cii = ITOC(inode);
 
 	spin_lock(&cii->c_lock);
-	cii->c_cached_epoch = atomic_read(&permission_epoch);
+	cii->c_cached_epoch = atomic_read_unchecked(&permission_epoch);
 	if (!uid_eq(cii->c_uid, current_fsuid())) {
 		cii->c_uid = current_fsuid();
                 cii->c_cached_perm = mask;
@@ -46,14 +46,14 @@ void coda_cache_clear_inode(struct inode *inode)
 {
 	struct coda_inode_info *cii = ITOC(inode);
 	spin_lock(&cii->c_lock);
-	cii->c_cached_epoch = atomic_read(&permission_epoch) - 1;
+	cii->c_cached_epoch = atomic_read_unchecked(&permission_epoch) - 1;
 	spin_unlock(&cii->c_lock);
 }
 
 /* remove all acl caches */
 void coda_cache_clear_all(struct super_block *sb)
 {
-	atomic_inc(&permission_epoch);
+	atomic_inc_unchecked(&permission_epoch);
 }
 
 
@@ -66,7 +66,7 @@ int coda_cache_check(struct inode *inode, int mask)
 	spin_lock(&cii->c_lock);
 	hit = (mask & cii->c_cached_perm) == mask &&
 	    uid_eq(cii->c_uid, current_fsuid()) &&
-	    cii->c_cached_epoch == atomic_read(&permission_epoch);
+	    cii->c_cached_epoch == atomic_read_unchecked(&permission_epoch);
 	spin_unlock(&cii->c_lock);
 
 	return hit;
diff --git a/fs/coda/dir.c b/fs/coda/dir.c
index 42e731b..2f87bc5 100644
--- a/fs/coda/dir.c
+++ b/fs/coda/dir.c
@@ -29,11 +29,10 @@
 #include "coda_int.h"
 
 /* same as fs/bad_inode.c */
-static int coda_return_EIO(void)
+static int coda_mknod(struct inode *inode, struct dentry *dentry, umode_t mode, dev_t dev)
 {
 	return -EIO;
 }
-#define CODA_EIO_ERROR ((void *) (coda_return_EIO))
 
 /* inode operations for directories */
 /* access routines: lookup, readlink, permission */
@@ -562,7 +561,7 @@ const struct inode_operations coda_dir_inode_operations = {
 	.symlink	= coda_symlink,
 	.mkdir		= coda_mkdir,
 	.rmdir		= coda_rmdir,
-	.mknod		= CODA_EIO_ERROR,
+	.mknod		= coda_mknod,
 	.rename		= coda_rename,
 	.permission	= coda_permission,
 	.getattr	= coda_getattr,
diff --git a/fs/compat.c b/fs/compat.c
index a71936a..1659c19 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -54,7 +54,7 @@
 #include <asm/ioctls.h>
 #include "internal.h"
 
-int compat_log = 1;
+int compat_log = 0;
 
 int compat_printk(const char *fmt, ...)
 {
@@ -512,7 +512,7 @@ COMPAT_SYSCALL_DEFINE2(io_setup, unsigned, nr_reqs, u32 __user *, ctx32p)
 
 	set_fs(KERNEL_DS);
 	/* The __user pointer cast is valid because of the set_fs() */
-	ret = sys_io_setup(nr_reqs, (aio_context_t __user *) &ctx64);
+	ret = sys_io_setup(nr_reqs, (aio_context_t __force_user *) &ctx64);
 	set_fs(oldfs);
 	/* truncating is ok because it's a user address */
 	if (!ret)
@@ -562,7 +562,7 @@ ssize_t compat_rw_copy_check_uvector(int type,
 		goto out;
 
 	ret = -EINVAL;
-	if (nr_segs > UIO_MAXIOV || nr_segs < 0)
+	if (nr_segs > UIO_MAXIOV)
 		goto out;
 	if (nr_segs > fast_segs) {
 		ret = -ENOMEM;
@@ -843,6 +843,7 @@ struct compat_old_linux_dirent {
 struct compat_readdir_callback {
 	struct dir_context ctx;
 	struct compat_old_linux_dirent __user *dirent;
+	struct file * file;
 	int result;
 };
 
@@ -862,6 +863,10 @@ static int compat_fillonedir(struct dir_context *ctx, const char *name,
 		buf->result = -EOVERFLOW;
 		return -EOVERFLOW;
 	}
+
+	if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
+		return 0;
+
 	buf->result++;
 	dirent = buf->dirent;
 	if (!access_ok(VERIFY_WRITE, dirent,
@@ -893,6 +898,7 @@ COMPAT_SYSCALL_DEFINE3(old_readdir, unsigned int, fd,
 	if (!f.file)
 		return -EBADF;
 
+	buf.file = f.file;
 	error = iterate_dir(f.file, &buf.ctx);
 	if (buf.result)
 		error = buf.result;
@@ -912,6 +918,7 @@ struct compat_getdents_callback {
 	struct dir_context ctx;
 	struct compat_linux_dirent __user *current_dir;
 	struct compat_linux_dirent __user *previous;
+	struct file * file;
 	int count;
 	int error;
 };
@@ -934,6 +941,10 @@ static int compat_filldir(struct dir_context *ctx, const char *name, int namlen,
 		buf->error = -EOVERFLOW;
 		return -EOVERFLOW;
 	}
+
+	if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
+		return 0;
+
 	dirent = buf->previous;
 	if (dirent) {
 		if (__put_user(offset, &dirent->d_off))
@@ -979,6 +990,7 @@ COMPAT_SYSCALL_DEFINE3(getdents, unsigned int, fd,
 	if (!f.file)
 		return -EBADF;
 
+	buf.file = f.file;
 	error = iterate_dir(f.file, &buf.ctx);
 	if (error >= 0)
 		error = buf.error;
@@ -999,6 +1011,7 @@ struct compat_getdents_callback64 {
 	struct dir_context ctx;
 	struct linux_dirent64 __user *current_dir;
 	struct linux_dirent64 __user *previous;
+	struct file * file;
 	int count;
 	int error;
 };
@@ -1017,6 +1030,10 @@ static int compat_filldir64(struct dir_context *ctx, const char *name,
 	buf->error = -EINVAL;	/* only used if we fail.. */
 	if (reclen > buf->count)
 		return -EINVAL;
+
+	if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
+		return 0;
+
 	dirent = buf->previous;
 
 	if (dirent) {
@@ -1066,13 +1083,13 @@ COMPAT_SYSCALL_DEFINE3(getdents64, unsigned int, fd,
 	if (!f.file)
 		return -EBADF;
 
+	buf.file = f.file;
 	error = iterate_dir(f.file, &buf.ctx);
 	if (error >= 0)
 		error = buf.error;
 	lastdirent = buf.previous;
 	if (lastdirent) {
-		typeof(lastdirent->d_off) d_off = buf.ctx.pos;
-		if (__put_user_unaligned(d_off, &lastdirent->d_off))
+		if (__put_user_unaligned(buf.ctx.pos, &lastdirent->d_off))
 			error = -EFAULT;
 		else
 			error = count - buf.count;
@@ -1327,7 +1344,7 @@ COMPAT_SYSCALL_DEFINE5(select, int, n, compat_ulong_t __user *, inp,
 }
 
 struct compat_sel_arg_struct {
-	compat_ulong_t n;
+	compat_long_t n;
 	compat_uptr_t inp;
 	compat_uptr_t outp;
 	compat_uptr_t exp;
diff --git a/fs/compat_binfmt_elf.c b/fs/compat_binfmt_elf.c
index 4d24d17..4f8c09e 100644
--- a/fs/compat_binfmt_elf.c
+++ b/fs/compat_binfmt_elf.c
@@ -30,11 +30,13 @@
 #undef	elf_phdr
 #undef	elf_shdr
 #undef	elf_note
+#undef	elf_dyn
 #undef	elf_addr_t
 #define elfhdr		elf32_hdr
 #define elf_phdr	elf32_phdr
 #define elf_shdr	elf32_shdr
 #define elf_note	elf32_note
+#define elf_dyn		Elf32_Dyn
 #define elf_addr_t	Elf32_Addr
 
 /*
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index bd01b92..f6fcace 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -645,7 +645,7 @@ static int serial_struct_ioctl(struct file *file,
 		if (copy_in_user(ss, ss32, offsetof(SS32, iomem_base)) ||
 		    get_user(udata, &ss32->iomem_base))
 			return -EFAULT;
-		iomem_base = compat_ptr(udata);
+		iomem_base = (unsigned char __force_kernel *)compat_ptr(udata);
 		if (put_user(iomem_base, &ss->iomem_base) ||
 		    convert_in_user(&ss32->iomem_reg_shift,
 		      &ss->iomem_reg_shift) ||
@@ -727,8 +727,8 @@ static int do_i2c_rdwr_ioctl(struct file *file,
 	for (i = 0; i < nmsgs; i++) {
 		if (copy_in_user(&tmsgs[i].addr, &umsgs[i].addr, 3*sizeof(u16)))
 			return -EFAULT;
-		if (get_user(datap, &umsgs[i].buf) ||
-		    put_user(compat_ptr(datap), &tmsgs[i].buf))
+		if (get_user(datap, (compat_caddr_t __user *)&umsgs[i].buf) ||
+		    put_user(compat_ptr(datap), (u8 __user * __user *)&tmsgs[i].buf))
 			return -EFAULT;
 	}
 	return do_ioctl(file, cmd, (unsigned long)tdata);
@@ -819,7 +819,7 @@ static int compat_ioctl_preallocate(struct file *file,
 	    copy_in_user(&p->l_len,	&p32->l_len,	sizeof(s64)) ||
 	    copy_in_user(&p->l_sysid,	&p32->l_sysid,	sizeof(s32)) ||
 	    copy_in_user(&p->l_pid,	&p32->l_pid,	sizeof(u32)) ||
-	    copy_in_user(&p->l_pad,	&p32->l_pad,	4*sizeof(u32)))
+	    copy_in_user(p->l_pad,	p32->l_pad,	4*sizeof(u32)))
 		return -EFAULT;
 
 	return ioctl_preallocate(file, p);
@@ -1617,8 +1617,8 @@ COMPAT_SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd,
 static int __init init_sys32_ioctl_cmp(const void *p, const void *q)
 {
 	unsigned int a, b;
-	a = *(unsigned int *)p;
-	b = *(unsigned int *)q;
+	a = *(const unsigned int *)p;
+	b = *(const unsigned int *)q;
 	if (a > b)
 		return 1;
 	if (a < b)
diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
index ea59c89..568f279 100644
--- a/fs/configfs/dir.c
+++ b/fs/configfs/dir.c
@@ -1639,7 +1639,8 @@ static int configfs_readdir(struct file *file, struct dir_context *ctx)
 	}
 	for (p = q->next; p != &parent_sd->s_children; p = p->next) {
 		struct configfs_dirent *next;
-		const char *name;
+		const unsigned char * name;
+		char d_name[sizeof(next->s_dentry->d_iname)];
 		int len;
 		struct inode *inode = NULL;
 
@@ -1648,7 +1649,12 @@ static int configfs_readdir(struct file *file, struct dir_context *ctx)
 			continue;
 
 		name = configfs_get_name(next);
-		len = strlen(name);
+		if (next->s_dentry && name == next->s_dentry->d_iname) {
+			len =  next->s_dentry->d_name.len;
+			memcpy(d_name, name, len);
+			name = d_name;
+		} else
+			len = strlen(name);
 
 		/*
 		 * We'll have a dentry and an inode for
diff --git a/fs/coredump.c b/fs/coredump.c
index 47c32c3..dc0e594 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -481,8 +481,8 @@ static void wait_for_dump_helpers(struct file *file)
 	struct pipe_inode_info *pipe = file->private_data;
 
 	pipe_lock(pipe);
-	pipe->readers++;
-	pipe->writers--;
+	atomic_inc(&pipe->readers);
+	atomic_dec(&pipe->writers);
 	wake_up_interruptible_sync(&pipe->wait);
 	kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
 	pipe_unlock(pipe);
@@ -491,11 +491,11 @@ static void wait_for_dump_helpers(struct file *file)
 	 * We actually want wait_event_freezable() but then we need
 	 * to clear TIF_SIGPENDING and improve dump_interrupted().
 	 */
-	wait_event_interruptible(pipe->wait, pipe->readers == 1);
+	wait_event_interruptible(pipe->wait, atomic_read(&pipe->readers) == 1);
 
 	pipe_lock(pipe);
-	pipe->readers--;
-	pipe->writers++;
+	atomic_dec(&pipe->readers);
+	atomic_inc(&pipe->writers);
 	pipe_unlock(pipe);
 }
 
@@ -542,7 +542,9 @@ void do_coredump(const siginfo_t *siginfo)
 	/* require nonrelative corefile path and be extra careful */
 	bool need_suid_safe = false;
 	bool core_dumped = false;
-	static atomic_t core_dump_count = ATOMIC_INIT(0);
+	static atomic_unchecked_t core_dump_count = ATOMIC_INIT(0);
+	long signr = siginfo->si_signo;
+	int dumpable;
 	struct coredump_params cprm = {
 		.siginfo = siginfo,
 		.regs = signal_pt_regs(),
@@ -555,12 +557,17 @@ void do_coredump(const siginfo_t *siginfo)
 		.mm_flags = mm->flags,
 	};
 
-	audit_core_dumps(siginfo->si_signo);
+	audit_core_dumps(signr);
+
+	dumpable = __get_dumpable(cprm.mm_flags);
+
+	if (signr == SIGSEGV || signr == SIGBUS || signr == SIGKILL || signr == SIGILL)
+		gr_handle_brute_attach(dumpable);
 
 	binfmt = mm->binfmt;
 	if (!binfmt || !binfmt->core_dump)
 		goto fail;
-	if (!__get_dumpable(cprm.mm_flags))
+	if (!dumpable)
 		goto fail;
 
 	cred = prepare_creds();
@@ -578,7 +585,7 @@ void do_coredump(const siginfo_t *siginfo)
 		need_suid_safe = true;
 	}
 
-	retval = coredump_wait(siginfo->si_signo, &core_state);
+	retval = coredump_wait(signr, &core_state);
 	if (retval < 0)
 		goto fail_creds;
 
@@ -621,7 +628,7 @@ void do_coredump(const siginfo_t *siginfo)
 		}
 		cprm.limit = RLIM_INFINITY;
 
-		dump_count = atomic_inc_return(&core_dump_count);
+		dump_count = atomic_inc_return_unchecked(&core_dump_count);
 		if (core_pipe_limit && (core_pipe_limit < dump_count)) {
 			printk(KERN_WARNING "Pid %d(%s) over core_pipe_limit\n",
 			       task_tgid_vnr(current), current->comm);
@@ -655,6 +662,8 @@ void do_coredump(const siginfo_t *siginfo)
 		int open_flags = O_CREAT | O_RDWR | O_NOFOLLOW |
 				 O_LARGEFILE | O_EXCL;
 
+		gr_learn_resource(current, RLIMIT_CORE, binfmt->min_coredump, 1);
+
 		if (cprm.limit < binfmt->min_coredump)
 			goto fail_unlock;
 
@@ -680,7 +689,7 @@ void do_coredump(const siginfo_t *siginfo)
 			 * If it doesn't exist, that's fine. If there's some
 			 * other problem, we'll catch it at the filp_open().
 			 */
-			(void) sys_unlink((const char __user *)cn.corename);
+			(void) sys_unlink((const char __force_user *)cn.corename);
 			set_fs(old_fs);
 		}
 
@@ -761,7 +770,7 @@ close_fail:
 		filp_close(cprm.file, NULL);
 fail_dropcount:
 	if (ispipe)
-		atomic_dec(&core_dump_count);
+		atomic_dec_unchecked(&core_dump_count);
 fail_unlock:
 	kfree(cn.corename);
 	coredump_finish(mm, core_dumped);
@@ -782,6 +791,8 @@ int dump_emit(struct coredump_params *cprm, const void *addr, int nr)
 	struct file *file = cprm->file;
 	loff_t pos = file->f_pos;
 	ssize_t n;
+
+	gr_learn_resource(current, RLIMIT_CORE, cprm->written + nr, 1);
 	if (cprm->written + nr > cprm->limit)
 		return 0;
 	while (nr) {
diff --git a/fs/dcache.c b/fs/dcache.c
index 44008e3..c6ec6f3 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -328,8 +328,9 @@ static inline void dentry_rcuwalk_invalidate(struct dentry *dentry)
  * and is unhashed.
  */
 static void dentry_iput(struct dentry * dentry)
-	__releases(dentry->d_lock)
-	__releases(dentry->d_inode->i_lock)
+	__releases(&dentry->d_lock)
+	__releases(&dentry->d_inode->i_lock);
+static void dentry_iput(struct dentry * dentry)
 {
 	struct inode *inode = dentry->d_inode;
 	if (inode) {
@@ -353,8 +354,9 @@ static void dentry_iput(struct dentry * dentry)
  * d_iput() operation if defined. dentry remains in-use.
  */
 static void dentry_unlink_inode(struct dentry * dentry)
-	__releases(dentry->d_lock)
-	__releases(dentry->d_inode->i_lock)
+	__releases(&dentry->d_lock)
+	__releases(&dentry->d_inode->i_lock);
+static void dentry_unlink_inode(struct dentry * dentry)
 {
 	struct inode *inode = dentry->d_inode;
 
@@ -534,7 +536,7 @@ static void __dentry_kill(struct dentry *dentry)
 	 * dentry_iput drops the locks, at which point nobody (except
 	 * transient RCU lookups) can reach this dentry.
 	 */
-	BUG_ON(dentry->d_lockref.count > 0);
+	BUG_ON(__lockref_read(&dentry->d_lockref) > 0);
 	this_cpu_dec(nr_dentry);
 	if (dentry->d_op && dentry->d_op->d_release)
 		dentry->d_op->d_release(dentry);
@@ -556,7 +558,8 @@ static void __dentry_kill(struct dentry *dentry)
  * Returns dentry requiring refcount drop, or NULL if we're done.
  */
 static struct dentry *dentry_kill(struct dentry *dentry)
-	__releases(dentry->d_lock)
+	__releases(&dentry->d_lock);
+static struct dentry *dentry_kill(struct dentry *dentry)
 {
 	struct inode *inode = dentry->d_inode;
 	struct dentry *parent = NULL;
@@ -587,7 +590,7 @@ static inline struct dentry *lock_parent(struct dentry *dentry)
 	struct dentry *parent = dentry->d_parent;
 	if (IS_ROOT(dentry))
 		return NULL;
-	if (unlikely(dentry->d_lockref.count < 0))
+	if (unlikely(__lockref_read(&dentry->d_lockref) < 0))
 		return NULL;
 	if (likely(spin_trylock(&parent->d_lock)))
 		return parent;
@@ -649,8 +652,8 @@ static inline bool fast_dput(struct dentry *dentry)
 	 */
 	if (unlikely(ret < 0)) {
 		spin_lock(&dentry->d_lock);
-		if (dentry->d_lockref.count > 1) {
-			dentry->d_lockref.count--;
+		if (__lockref_read(&dentry->d_lockref) > 1) {
+			__lockref_dec(&dentry->d_lockref);
 			spin_unlock(&dentry->d_lock);
 			return 1;
 		}
@@ -705,7 +708,7 @@ static inline bool fast_dput(struct dentry *dentry)
 	 * else could have killed it and marked it dead. Either way, we
 	 * don't need to do anything else.
 	 */
-	if (dentry->d_lockref.count) {
+	if (__lockref_read(&dentry->d_lockref)) {
 		spin_unlock(&dentry->d_lock);
 		return 1;
 	}
@@ -715,7 +718,7 @@ static inline bool fast_dput(struct dentry *dentry)
 	 * lock, and we just tested that it was zero, so we can just
 	 * set it to 1.
 	 */
-	dentry->d_lockref.count = 1;
+	__lockref_set(&dentry->d_lockref, 1);
 	return 0;
 }
 
@@ -777,7 +780,7 @@ repeat:
 		dentry->d_flags |= DCACHE_REFERENCED;
 	dentry_lru_add(dentry);
 
-	dentry->d_lockref.count--;
+	__lockref_dec(&dentry->d_lockref);
 	spin_unlock(&dentry->d_lock);
 	return;
 
@@ -792,7 +795,7 @@ EXPORT_SYMBOL(dput);
 /* This must be called with d_lock held */
 static inline void __dget_dlock(struct dentry *dentry)
 {
-	dentry->d_lockref.count++;
+	__lockref_inc(&dentry->d_lockref);
 }
 
 static inline void __dget(struct dentry *dentry)
@@ -833,8 +836,8 @@ repeat:
 		goto repeat;
 	}
 	rcu_read_unlock();
-	BUG_ON(!ret->d_lockref.count);
-	ret->d_lockref.count++;
+	BUG_ON(!__lockref_read(&ret->d_lockref));
+	__lockref_inc(&ret->d_lockref);
 	spin_unlock(&ret->d_lock);
 	return ret;
 }
@@ -912,9 +915,9 @@ restart:
 	spin_lock(&inode->i_lock);
 	hlist_for_each_entry(dentry, &inode->i_dentry, d_u.d_alias) {
 		spin_lock(&dentry->d_lock);
-		if (!dentry->d_lockref.count) {
+		if (!__lockref_read(&dentry->d_lockref)) {
 			struct dentry *parent = lock_parent(dentry);
-			if (likely(!dentry->d_lockref.count)) {
+			if (likely(!__lockref_read(&dentry->d_lockref))) {
 				__dentry_kill(dentry);
 				dput(parent);
 				goto restart;
@@ -949,7 +952,7 @@ static void shrink_dentry_list(struct list_head *list)
 		 * We found an inuse dentry which was not removed from
 		 * the LRU because of laziness during lookup. Do not free it.
 		 */
-		if (dentry->d_lockref.count > 0) {
+		if (__lockref_read(&dentry->d_lockref) > 0) {
 			spin_unlock(&dentry->d_lock);
 			if (parent)
 				spin_unlock(&parent->d_lock);
@@ -987,8 +990,8 @@ static void shrink_dentry_list(struct list_head *list)
 		dentry = parent;
 		while (dentry && !lockref_put_or_lock(&dentry->d_lockref)) {
 			parent = lock_parent(dentry);
-			if (dentry->d_lockref.count != 1) {
-				dentry->d_lockref.count--;
+			if (__lockref_read(&dentry->d_lockref) != 1) {
+				__lockref_inc(&dentry->d_lockref);
 				spin_unlock(&dentry->d_lock);
 				if (parent)
 					spin_unlock(&parent->d_lock);
@@ -1028,7 +1031,7 @@ static enum lru_status dentry_lru_isolate(struct list_head *item,
 	 * counts, just remove them from the LRU. Otherwise give them
 	 * another pass through the LRU.
 	 */
-	if (dentry->d_lockref.count) {
+	if (__lockref_read(&dentry->d_lockref)) {
 		d_lru_isolate(lru, dentry);
 		spin_unlock(&dentry->d_lock);
 		return LRU_REMOVED;
@@ -1362,7 +1365,7 @@ static enum d_walk_ret select_collect(void *_data, struct dentry *dentry)
 	} else {
 		if (dentry->d_flags & DCACHE_LRU_LIST)
 			d_lru_del(dentry);
-		if (!dentry->d_lockref.count) {
+		if (!__lockref_read(&dentry->d_lockref)) {
 			d_shrink_add(dentry, &data->dispose);
 			data->found++;
 		}
@@ -1410,7 +1413,7 @@ static enum d_walk_ret umount_check(void *_data, struct dentry *dentry)
 		return D_WALK_CONTINUE;
 
 	/* root with refcount 1 is fine */
-	if (dentry == _data && dentry->d_lockref.count == 1)
+	if (dentry == _data && __lockref_read(&dentry->d_lockref) == 1)
 		return D_WALK_CONTINUE;
 
 	printk(KERN_ERR "BUG: Dentry %p{i=%lx,n=%pd} "
@@ -1419,7 +1422,7 @@ static enum d_walk_ret umount_check(void *_data, struct dentry *dentry)
 		       dentry->d_inode ?
 		       dentry->d_inode->i_ino : 0UL,
 		       dentry,
-		       dentry->d_lockref.count,
+		       __lockref_read(&dentry->d_lockref),
 		       dentry->d_sb->s_type->name,
 		       dentry->d_sb->s_id);
 	WARN_ON(1);
@@ -1560,7 +1563,7 @@ struct dentry *__d_alloc(struct super_block *sb, const struct qstr *name)
 	dentry->d_iname[DNAME_INLINE_LEN-1] = 0;
 	if (name->len > DNAME_INLINE_LEN-1) {
 		size_t size = offsetof(struct external_name, name[1]);
-		struct external_name *p = kmalloc(size + name->len,
+		struct external_name *p = kmalloc(round_up(size + name->len, sizeof(unsigned long)),
 						  GFP_KERNEL_ACCOUNT);
 		if (!p) {
 			kmem_cache_free(dentry_cache, dentry); 
@@ -1584,7 +1587,7 @@ struct dentry *__d_alloc(struct super_block *sb, const struct qstr *name)
 	smp_wmb();
 	dentry->d_name.name = dname;
 
-	dentry->d_lockref.count = 1;
+	__lockref_set(&dentry->d_lockref, 1);
 	dentry->d_flags = 0;
 	spin_lock_init(&dentry->d_lock);
 	seqcount_init(&dentry->d_seq);
@@ -1593,6 +1596,9 @@ struct dentry *__d_alloc(struct super_block *sb, const struct qstr *name)
 	dentry->d_sb = sb;
 	dentry->d_op = NULL;
 	dentry->d_fsdata = NULL;
+#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
+	atomic_set(&dentry->chroot_refcnt, 0);
+#endif
 	INIT_HLIST_BL_NODE(&dentry->d_hash);
 	INIT_LIST_HEAD(&dentry->d_lru);
 	INIT_LIST_HEAD(&dentry->d_subdirs);
@@ -2245,7 +2251,7 @@ struct dentry *__d_lookup(const struct dentry *parent, const struct qstr *name)
 				goto next;
 		}
 
-		dentry->d_lockref.count++;
+		__lockref_inc(&dentry->d_lockref);
 		found = dentry;
 		spin_unlock(&dentry->d_lock);
 		break;
@@ -2313,7 +2319,7 @@ again:
 	spin_lock(&dentry->d_lock);
 	inode = dentry->d_inode;
 	isdir = S_ISDIR(inode->i_mode);
-	if (dentry->d_lockref.count == 1) {
+	if (__lockref_read(&dentry->d_lockref) == 1) {
 		if (!spin_trylock(&inode->i_lock)) {
 			spin_unlock(&dentry->d_lock);
 			cpu_relax();
@@ -3336,7 +3342,7 @@ static enum d_walk_ret d_genocide_kill(void *data, struct dentry *dentry)
 
 		if (!(dentry->d_flags & DCACHE_GENOCIDE)) {
 			dentry->d_flags |= DCACHE_GENOCIDE;
-			dentry->d_lockref.count--;
+			__lockref_dec(&dentry->d_lockref);
 		}
 	}
 	return D_WALK_CONTINUE;
@@ -3444,7 +3450,8 @@ void __init vfs_caches_init_early(void)
 void __init vfs_caches_init(void)
 {
 	names_cachep = kmem_cache_create("names_cache", PATH_MAX, 0,
-			SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL);
+			SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_USERCOPY|
+			SLAB_NO_SANITIZE, NULL);
 
 	dcache_init();
 	inode_init();
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index 8580831..36166e5 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -247,6 +247,10 @@ static struct dentry *start_creating(const char *name, struct dentry *parent)
 	struct dentry *dentry;
 	int error;
 
+#ifdef CONFIG_GRKERNSEC_KMEM
+	return ERR_PTR(-ENODEV);
+#endif
+
 	pr_debug("debugfs: creating file '%s'\n",name);
 
 	if (IS_ERR(parent))
@@ -406,6 +410,10 @@ EXPORT_SYMBOL_GPL(debugfs_create_file_size);
  * If debugfs is not enabled in the kernel, the value -%ENODEV will be
  * returned.
  */
+#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
+extern int grsec_enable_sysfs_restrict;
+#endif
+
 struct dentry *debugfs_create_dir(const char *name, struct dentry *parent)
 {
 	struct dentry *dentry = start_creating(name, parent);
@@ -418,7 +426,12 @@ struct dentry *debugfs_create_dir(const char *name, struct dentry *parent)
 	if (unlikely(!inode))
 		return failed_creating(dentry);
 
-	inode->i_mode = S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO;
+#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
+	if (grsec_enable_sysfs_restrict)
+		inode->i_mode = S_IFDIR | S_IRWXU;
+	else
+#endif
+		inode->i_mode = S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO;
 	inode->i_op = &simple_dir_inode_operations;
 	inode->i_fop = &simple_dir_operations;
 
@@ -721,6 +734,10 @@ static int __init debugfs_init(void)
 {
 	int retval;
 
+#ifdef CONFIG_GRKERNSEC_KMEM
+	return -ENOSYS;
+#endif
+
 	retval = sysfs_create_mount_point(kernel_kobj, "debug");
 	if (retval)
 		return retval;
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 224b49e..980370c 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -654,7 +654,7 @@ static char *ecryptfs_readlink_lower(struct dentry *dentry, size_t *bufsiz)
 	old_fs = get_fs();
 	set_fs(get_ds());
 	rc = d_inode(lower_dentry)->i_op->readlink(lower_dentry,
-						   (char __user *)lower_buf,
+						   (char __force_user *)lower_buf,
 						   PATH_MAX);
 	set_fs(old_fs);
 	if (rc < 0)
diff --git a/fs/ecryptfs/miscdev.c b/fs/ecryptfs/miscdev.c
index e4141f2..d8263e8 100644
--- a/fs/ecryptfs/miscdev.c
+++ b/fs/ecryptfs/miscdev.c
@@ -304,7 +304,7 @@ check_list:
 		goto out_unlock_msg_ctx;
 	i = PKT_TYPE_SIZE + PKT_CTR_SIZE;
 	if (msg_ctx->msg) {
-		if (copy_to_user(&buf[i], packet_length, packet_length_size))
+		if (packet_length_size > sizeof(packet_length) || copy_to_user(&buf[i], packet_length, packet_length_size))
 			goto out_unlock_msg_ctx;
 		i += packet_length_size;
 		if (copy_to_user(&buf[i], msg_ctx->msg, msg_ctx->msg_size))
diff --git a/fs/exec.c b/fs/exec.c
index c4010b8..07a2672 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -57,8 +57,20 @@
 #include <linux/oom.h>
 #include <linux/compat.h>
 #include <linux/vmalloc.h>
+#include <linux/random.h>
+#include <linux/seq_file.h>
+#include <linux/coredump.h>
+#include <linux/mman.h>
+
+#ifdef CONFIG_PAX_REFCOUNT
+#include <linux/kallsyms.h>
+#include <linux/kdebug.h>
+#endif
+
+#include <trace/events/fs.h>
 
 #include <asm/uaccess.h>
+#include <asm/sections.h>
 #include <asm/mmu_context.h>
 #include <asm/tlb.h>
 
@@ -67,19 +79,34 @@
 
 #include <trace/events/sched.h>
 
+#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
+void __weak pax_set_initial_flags(struct linux_binprm *bprm)
+{
+	pr_warn_once("PAX: PAX_HAVE_ACL_FLAGS was enabled without providing the pax_set_initial_flags callback, this is probably not what you wanted.\n");
+}
+#endif
+
+#ifdef CONFIG_PAX_HOOK_ACL_FLAGS
+void (*pax_set_initial_flags_func)(struct linux_binprm *bprm);
+EXPORT_SYMBOL(pax_set_initial_flags_func);
+#endif
+
 int suid_dumpable = 0;
 
 static LIST_HEAD(formats);
 static DEFINE_RWLOCK(binfmt_lock);
 
+extern int gr_process_kernel_exec_ban(void);
+extern int gr_process_sugid_exec_ban(const struct linux_binprm *bprm);
+
 void __register_binfmt(struct linux_binfmt * fmt, int insert)
 {
 	BUG_ON(!fmt);
 	if (WARN_ON(!fmt->load_binary))
 		return;
 	write_lock(&binfmt_lock);
-	insert ? list_add(&fmt->lh, &formats) :
-		 list_add_tail(&fmt->lh, &formats);
+	insert ? pax_list_add((struct list_head *)&fmt->lh, &formats) :
+		 pax_list_add_tail((struct list_head *)&fmt->lh, &formats);
 	write_unlock(&binfmt_lock);
 }
 
@@ -88,7 +115,7 @@ EXPORT_SYMBOL(__register_binfmt);
 void unregister_binfmt(struct linux_binfmt * fmt)
 {
 	write_lock(&binfmt_lock);
-	list_del(&fmt->lh);
+	pax_list_del((struct list_head *)&fmt->lh);
 	write_unlock(&binfmt_lock);
 }
 
@@ -190,22 +217,15 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
 		int write)
 {
 	struct page *page;
-	int ret;
 
-#ifdef CONFIG_STACK_GROWSUP
-	if (write) {
-		ret = expand_downwards(bprm->vma, pos);
-		if (ret < 0)
-			return NULL;
-	}
-#endif
+	if (0 > expand_downwards(bprm->vma, pos))
+		return NULL;
 	/*
 	 * We are doing an exec().  'current' is the process
 	 * doing the exec and bprm->mm is the new process's mm.
 	 */
-	ret = get_user_pages_remote(current, bprm->mm, pos, 1, write,
-			1, &page, NULL);
-	if (ret <= 0)
+	if (0 >= get_user_pages_remote(current, bprm->mm, pos, 1, write,
+			1, &page, NULL))
 		return NULL;
 
 	if (write) {
@@ -221,6 +241,17 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
 		if (size <= ARG_MAX)
 			return page;
 
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+		// only allow 512KB for argv+env on suid/sgid binaries
+		// to prevent easy ASLR exhaustion
+		if (((!uid_eq(bprm->cred->euid, current_euid())) ||
+		     (!gid_eq(bprm->cred->egid, current_egid()))) &&
+		    (size > (512 * 1024))) {
+			put_page(page);
+			return NULL;
+		}
+#endif
+
 		/*
 		 * Limit to 1/4-th the stack size for the argv+env strings.
 		 * This ensures that:
@@ -280,6 +311,11 @@ static int __bprm_mm_init(struct linux_binprm *bprm)
 	vma->vm_end = STACK_TOP_MAX;
 	vma->vm_start = vma->vm_end - PAGE_SIZE;
 	vma->vm_flags = VM_SOFTDIRTY | VM_STACK_FLAGS | VM_STACK_INCOMPLETE_SETUP;
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	vma->vm_flags &= ~(VM_EXEC | VM_MAYEXEC);
+#endif
+
 	vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
 	INIT_LIST_HEAD(&vma->anon_vma_chain);
 
@@ -291,6 +327,12 @@ static int __bprm_mm_init(struct linux_binprm *bprm)
 	arch_bprm_mm_init(mm, vma);
 	up_write(&mm->mmap_sem);
 	bprm->p = vma->vm_end - sizeof(void *);
+
+#ifdef CONFIG_PAX_RANDUSTACK
+	if (randomize_va_space)
+		bprm->p ^= prandom_u32() & ~PAGE_MASK;
+#endif
+
 	return 0;
 err:
 	up_write(&mm->mmap_sem);
@@ -407,7 +449,7 @@ struct user_arg_ptr {
 	} ptr;
 };
 
-static const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr)
+const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr)
 {
 	const char __user *native;
 
@@ -416,14 +458,14 @@ static const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr)
 		compat_uptr_t compat;
 
 		if (get_user(compat, argv.ptr.compat + nr))
-			return ERR_PTR(-EFAULT);
+			return (const char __force_user *)ERR_PTR(-EFAULT);
 
 		return compat_ptr(compat);
 	}
 #endif
 
 	if (get_user(native, argv.ptr.native + nr))
-		return ERR_PTR(-EFAULT);
+		return (const char __force_user *)ERR_PTR(-EFAULT);
 
 	return native;
 }
@@ -442,7 +484,7 @@ static int count(struct user_arg_ptr argv, int max)
 			if (!p)
 				break;
 
-			if (IS_ERR(p))
+			if (IS_ERR((const char __force_kernel *)p))
 				return -EFAULT;
 
 			if (i >= max)
@@ -477,7 +519,7 @@ static int copy_strings(int argc, struct user_arg_ptr argv,
 
 		ret = -EFAULT;
 		str = get_user_arg_ptr(argv, argc);
-		if (IS_ERR(str))
+		if (IS_ERR((const char __force_kernel *)str))
 			goto out;
 
 		len = strnlen_user(str, MAX_ARG_STRLEN);
@@ -559,7 +601,7 @@ int copy_strings_kernel(int argc, const char *const *__argv,
 	int r;
 	mm_segment_t oldfs = get_fs();
 	struct user_arg_ptr argv = {
-		.ptr.native = (const char __user *const  __user *)__argv,
+		.ptr.native = (const char __user * const __force_user *)__argv,
 	};
 
 	set_fs(KERNEL_DS);
@@ -594,7 +636,8 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
 	unsigned long new_end = old_end - shift;
 	struct mmu_gather tlb;
 
-	BUG_ON(new_start > new_end);
+	if (new_start >= new_end || new_start < mmap_min_addr)
+		return -ENOMEM;
 
 	/*
 	 * ensure there are no vmas between where we want to go
@@ -603,6 +646,10 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
 	if (vma != find_vma(mm, new_start))
 		return -EFAULT;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	BUG_ON(pax_find_mirror_vma(vma));
+#endif
+
 	/*
 	 * cover the whole range: [new_start, old_end)
 	 */
@@ -680,20 +727,16 @@ int setup_arg_pages(struct linux_binprm *bprm,
 	stack_base = PAGE_ALIGN(stack_top - stack_base);
 
 	stack_shift = vma->vm_start - stack_base;
-	mm->arg_start = bprm->p - stack_shift;
+	mm->arg_end = mm->arg_start = bprm->p - stack_shift;
 	bprm->p = vma->vm_end - stack_shift;
 #else
 	stack_top = arch_align_stack(stack_top);
 	stack_top = PAGE_ALIGN(stack_top);
 
-	if (unlikely(stack_top < mmap_min_addr) ||
-	    unlikely(vma->vm_end - vma->vm_start >= stack_top - mmap_min_addr))
-		return -ENOMEM;
-
 	stack_shift = vma->vm_end - stack_top;
 
 	bprm->p -= stack_shift;
-	mm->arg_start = bprm->p;
+	mm->arg_end = mm->arg_start = bprm->p;
 #endif
 
 	if (bprm->loader)
@@ -701,8 +744,28 @@ int setup_arg_pages(struct linux_binprm *bprm,
 	bprm->exec -= stack_shift;
 
 	down_write(&mm->mmap_sem);
+
+	/* Move stack pages down in memory. */
+	if (stack_shift) {
+		ret = shift_arg_pages(vma, stack_shift);
+		if (ret)
+			goto out_unlock;
+	}
+
 	vm_flags = VM_STACK_FLAGS;
 
+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
+	if (mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
+		vm_flags &= ~VM_EXEC;
+
+#ifdef CONFIG_PAX_MPROTECT
+		if (mm->pax_flags & MF_PAX_MPROTECT)
+			vm_flags &= ~VM_MAYEXEC;
+#endif
+
+	}
+#endif
+
 	/*
 	 * Adjust stack execute permissions; explicitly enable for
 	 * EXSTACK_ENABLE_X, disable for EXSTACK_DISABLE_X and leave alone
@@ -721,13 +784,6 @@ int setup_arg_pages(struct linux_binprm *bprm,
 		goto out_unlock;
 	BUG_ON(prev != vma);
 
-	/* Move stack pages down in memory. */
-	if (stack_shift) {
-		ret = shift_arg_pages(vma, stack_shift);
-		if (ret)
-			goto out_unlock;
-	}
-
 	/* mprotect_fixup is overkill to remove the temporary stack flags */
 	vma->vm_flags &= ~VM_STACK_INCOMPLETE_SETUP;
 
@@ -751,6 +807,27 @@ int setup_arg_pages(struct linux_binprm *bprm,
 #endif
 	current->mm->start_stack = bprm->p;
 	ret = expand_stack(vma, stack_base);
+
+#if !defined(CONFIG_STACK_GROWSUP) && defined(CONFIG_PAX_RANDMMAP)
+	if (!ret && (mm->pax_flags & MF_PAX_RANDMMAP) && STACK_TOP <= 0xFFFFFFFFU && STACK_TOP > vma->vm_end) {
+		unsigned long size;
+		vm_flags_t vm_flags;
+
+		size = STACK_TOP - vma->vm_end;
+		vm_flags = VM_NONE | VM_DONTEXPAND | VM_DONTDUMP;
+
+		ret = vma->vm_end != mmap_region(NULL, vma->vm_end, size, vm_flags, 0);
+
+#ifdef CONFIG_X86
+		if (!ret) {
+			size = PAGE_SIZE + mmap_min_addr + ((mm->delta_mmap ^ mm->delta_stack) & (0xFFUL << PAGE_SHIFT));
+			ret = 0 != mmap_region(NULL, 0, PAGE_ALIGN(size), vm_flags, 0);
+		}
+#endif
+
+	}
+#endif
+
 	if (ret)
 		ret = -EFAULT;
 
@@ -766,6 +843,7 @@ static struct file *do_open_execat(int fd, struct filename *name, int flags)
 {
 	struct file *file;
 	int err;
+	int unsafe_flags = 0;
 	struct open_flags open_exec_flags = {
 		.open_flag = O_LARGEFILE | O_RDONLY | __FMODE_EXEC,
 		.acc_mode = MAY_EXEC,
@@ -791,12 +869,22 @@ static struct file *do_open_execat(int fd, struct filename *name, int flags)
 	if (path_noexec(&file->f_path))
 		goto exit;
 
+	if (current->ptrace && !(current->ptrace & PT_PTRACE_CAP))
+		unsafe_flags = LSM_UNSAFE_PTRACE;
+
+	if (gr_ptrace_readexec(file, unsafe_flags)) {
+		err = -EPERM;
+		goto exit;
+	}
+
 	err = deny_write_access(file);
 	if (err)
 		goto exit;
 
-	if (name->name[0] != '\0')
+	if (name->name[0] != '\0') {
 		fsnotify_open(file);
+		trace_open_exec(name->name);
+	}
 
 out:
 	return file;
@@ -826,10 +914,13 @@ int kernel_read(struct file *file, loff_t offset,
 	loff_t pos = offset;
 	int result;
 
+	if (count > INT_MAX)
+		return -EINVAL;
+
 	old_fs = get_fs();
 	set_fs(get_ds());
 	/* The cast to a user pointer is valid due to the set_fs() */
-	result = vfs_read(file, (void __user *)addr, count, &pos);
+	result = vfs_read(file, (void __force_user *)addr, count, &pos);
 	set_fs(old_fs);
 	return result;
 }
@@ -1373,7 +1464,7 @@ static void check_unsafe_exec(struct linux_binprm *bprm)
 	}
 	rcu_read_unlock();
 
-	if (p->fs->users > n_fs)
+	if (atomic_read(&p->fs->users) > n_fs)
 		bprm->unsafe |= LSM_UNSAFE_SHARE;
 	else
 		p->fs->in_exec = 1;
@@ -1574,6 +1665,31 @@ static int exec_binprm(struct linux_binprm *bprm)
 	return ret;
 }
 
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+static DEFINE_PER_CPU(u64, exec_counter);
+static int __init init_exec_counters(void)
+{
+	unsigned int cpu;
+
+	for_each_possible_cpu(cpu) {
+		per_cpu(exec_counter, cpu) = (u64)cpu;
+	}
+
+	return 0;
+}
+early_initcall(init_exec_counters);
+static inline void increment_exec_counter(void)
+{
+	BUILD_BUG_ON(NR_CPUS > (1 << 16));
+	current->exec_id = this_cpu_add_return(exec_counter, 1 << 16);
+}
+#else
+static inline void increment_exec_counter(void) {}
+#endif
+
+extern void gr_handle_exec_args(struct linux_binprm *bprm,
+				struct user_arg_ptr argv);
+
 /*
  * sys_execve() executes a new program.
  */
@@ -1582,6 +1698,11 @@ static int do_execveat_common(int fd, struct filename *filename,
 			      struct user_arg_ptr envp,
 			      int flags)
 {
+#ifdef CONFIG_GRKERNSEC
+	struct file *old_exec_file;
+	struct acl_subject_label *old_acl;
+	struct rlimit old_rlim[RLIM_NLIMITS];
+#endif
 	char *pathbuf = NULL;
 	struct linux_binprm *bprm;
 	struct file *file;
@@ -1591,6 +1712,8 @@ static int do_execveat_common(int fd, struct filename *filename,
 	if (IS_ERR(filename))
 		return PTR_ERR(filename);
 
+	gr_learn_resource(current, RLIMIT_NPROC, atomic_read(&current_user()->processes), 1);
+
 	/*
 	 * We move the actual failure in case of RLIMIT_NPROC excess from
 	 * set*uid() to execve() because too many poorly written programs
@@ -1654,6 +1777,11 @@ static int do_execveat_common(int fd, struct filename *filename,
 	}
 	bprm->interp = bprm->filename;
 
+	if (!gr_acl_handle_execve(file->f_path.dentry, file->f_path.mnt)) {
+		retval = -EACCES;
+		goto out_unmark;
+	}
+
 	retval = bprm_mm_init(bprm);
 	if (retval)
 		goto out_unmark;
@@ -1670,24 +1798,70 @@ static int do_execveat_common(int fd, struct filename *filename,
 	if (retval < 0)
 		goto out;
 
+#ifdef CONFIG_GRKERNSEC
+	old_acl = current->acl;
+	memcpy(old_rlim, current->signal->rlim, sizeof(old_rlim));
+	old_exec_file = current->exec_file;
+	get_file(file);
+	current->exec_file = file;
+#endif
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	/* limit suid stack to 8MB
+	 * we saved the old limits above and will restore them if this exec fails
+	 */
+	if (((!uid_eq(bprm->cred->euid, current_euid())) || (!gid_eq(bprm->cred->egid, current_egid()))) &&
+	    (old_rlim[RLIMIT_STACK].rlim_cur > (8 * 1024 * 1024)))
+		current->signal->rlim[RLIMIT_STACK].rlim_cur = 8 * 1024 * 1024;
+#endif
+
+	if (gr_process_kernel_exec_ban() || gr_process_sugid_exec_ban(bprm)) {
+		retval = -EPERM;
+		goto out_fail;
+	}
+
+	if (!gr_tpe_allow(file)) {
+		retval = -EACCES;
+		goto out_fail;
+	}
+
+	if (gr_check_crash_exec(file)) {
+		retval = -EACCES;
+		goto out_fail;
+	}
+
+	retval = gr_set_proc_label(file->f_path.dentry, file->f_path.mnt,
+					bprm->unsafe);
+	if (retval < 0)
+		goto out_fail;
+
 	retval = copy_strings_kernel(1, &bprm->filename, bprm);
 	if (retval < 0)
-		goto out;
+		goto out_fail;
 
 	bprm->exec = bprm->p;
 	retval = copy_strings(bprm->envc, envp, bprm);
 	if (retval < 0)
-		goto out;
+		goto out_fail;
 
 	retval = copy_strings(bprm->argc, argv, bprm);
 	if (retval < 0)
-		goto out;
+		goto out_fail;
+
+	gr_log_chroot_exec(file->f_path.dentry, file->f_path.mnt);
+
+	gr_handle_exec_args(bprm, argv);
 
 	retval = exec_binprm(bprm);
 	if (retval < 0)
-		goto out;
+		goto out_fail;
+#ifdef CONFIG_GRKERNSEC
+	if (old_exec_file)
+		fput(old_exec_file);
+#endif
 
 	/* execve succeeded */
+
+	increment_exec_counter();
 	current->fs->in_exec = 0;
 	current->in_execve = 0;
 	acct_update_integrals(current);
@@ -1699,6 +1873,14 @@ static int do_execveat_common(int fd, struct filename *filename,
 		put_files_struct(displaced);
 	return retval;
 
+out_fail:
+#ifdef CONFIG_GRKERNSEC
+	current->acl = old_acl;
+	memcpy(current->signal->rlim, old_rlim, sizeof(old_rlim));
+	fput(current->exec_file);
+	current->exec_file = old_exec_file;
+#endif
+
 out:
 	if (bprm->mm) {
 		acct_arg_size(bprm, 0);
@@ -1845,3 +2027,316 @@ COMPAT_SYSCALL_DEFINE5(execveat, int, fd,
 				  argv, envp, flags);
 }
 #endif
+
+int pax_check_flags(unsigned long *flags)
+{
+	int retval = 0;
+
+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_SEGMEXEC)
+	if (*flags & MF_PAX_SEGMEXEC)
+	{
+		*flags &= ~MF_PAX_SEGMEXEC;
+		retval = -EINVAL;
+	}
+#endif
+
+	if ((*flags & MF_PAX_PAGEEXEC)
+
+#ifdef CONFIG_PAX_PAGEEXEC
+	    &&  (*flags & MF_PAX_SEGMEXEC)
+#endif
+
+	   )
+	{
+		*flags &= ~MF_PAX_PAGEEXEC;
+		retval = -EINVAL;
+	}
+
+	if ((*flags & MF_PAX_MPROTECT)
+
+#ifdef CONFIG_PAX_MPROTECT
+	    && !(*flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC))
+#endif
+
+	   )
+	{
+		*flags &= ~MF_PAX_MPROTECT;
+		retval = -EINVAL;
+	}
+
+	if ((*flags & MF_PAX_EMUTRAMP)
+
+#ifdef CONFIG_PAX_EMUTRAMP
+	    && !(*flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC))
+#endif
+
+	   )
+	{
+		*flags &= ~MF_PAX_EMUTRAMP;
+		retval = -EINVAL;
+	}
+
+	return retval;
+}
+
+EXPORT_SYMBOL(pax_check_flags);
+
+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
+char *pax_get_path(const struct path *path, char *buf, int buflen)
+{
+	char *pathname = d_path(path, buf, buflen);
+
+	if (IS_ERR(pathname))
+		goto toolong;
+
+	pathname = mangle_path(buf, pathname, "\t\n\\");
+	if (!pathname)
+		goto toolong;
+
+	*pathname = 0;
+	return buf;
+
+toolong:
+	return "<path too long>";
+}
+EXPORT_SYMBOL(pax_get_path);
+
+void pax_report_fault(struct pt_regs *regs, void *pc, void *sp)
+{
+	struct task_struct *tsk = current;
+	struct mm_struct *mm = current->mm;
+	char *buffer_exec = (char *)__get_free_page(GFP_KERNEL);
+	char *buffer_fault = (char *)__get_free_page(GFP_KERNEL);
+	char *path_exec = NULL;
+	char *path_fault = NULL;
+	unsigned long start = 0UL, end = 0UL, offset = 0UL;
+	siginfo_t info = { };
+
+	if (buffer_exec && buffer_fault) {
+		struct vm_area_struct *vma, *vma_exec = NULL, *vma_fault = NULL;
+
+		down_read(&mm->mmap_sem);
+		vma = mm->mmap;
+		while (vma && (!vma_exec || !vma_fault)) {
+			if (vma->vm_file && mm->exe_file == vma->vm_file && (vma->vm_flags & VM_EXEC))
+				vma_exec = vma;
+			if (vma->vm_start <= (unsigned long)pc && (unsigned long)pc < vma->vm_end)
+				vma_fault = vma;
+			vma = vma->vm_next;
+		}
+		if (vma_exec)
+			path_exec = pax_get_path(&vma_exec->vm_file->f_path, buffer_exec, PAGE_SIZE);
+		if (vma_fault) {
+			start = vma_fault->vm_start;
+			end = vma_fault->vm_end;
+			offset = vma_fault->vm_pgoff << PAGE_SHIFT;
+			if (vma_fault->vm_file)
+				path_fault = pax_get_path(&vma_fault->vm_file->f_path, buffer_fault, PAGE_SIZE);
+			else if ((unsigned long)pc >= mm->start_brk && (unsigned long)pc < mm->brk)
+				path_fault = "<heap>";
+			else if (vma_fault->vm_flags & (VM_GROWSDOWN | VM_GROWSUP))
+				path_fault = "<stack>";
+			else
+				path_fault = "<anonymous mapping>";
+		}
+		up_read(&mm->mmap_sem);
+	}
+	if (tsk->signal->curr_ip)
+		printk(KERN_ERR "PAX: From %pI4: execution attempt in: %s, %08lx-%08lx %08lx\n", &tsk->signal->curr_ip, path_fault, start, end, offset);
+	else
+		printk(KERN_ERR "PAX: execution attempt in: %s, %08lx-%08lx %08lx\n", path_fault, start, end, offset);
+	printk(KERN_ERR "PAX: terminating task: %s(%s):%d, uid/euid: %u/%u, PC: %p, SP: %p\n", path_exec, tsk->comm, task_pid_nr(tsk),
+			from_kuid_munged(&init_user_ns, task_uid(tsk)), from_kuid_munged(&init_user_ns, task_euid(tsk)), pc, sp);
+	free_page((unsigned long)buffer_exec);
+	free_page((unsigned long)buffer_fault);
+	pax_report_insns(regs, pc, sp);
+	info.si_signo = SIGKILL;
+	info.si_errno = 0;
+	info.si_code = SI_KERNEL;
+	info.si_pid = 0;
+	info.si_uid = 0;
+	do_coredump(&info);
+}
+#endif
+
+#ifdef CONFIG_PAX_REFCOUNT
+void pax_report_refcount_overflow(struct pt_regs *regs)
+{
+	if (current->signal->curr_ip)
+		printk(KERN_EMERG "PAX: From %pI4: refcount overflow detected in: %s:%d, uid/euid: %u/%u\n",
+				&current->signal->curr_ip, current->comm, task_pid_nr(current),
+				from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
+	else
+		printk(KERN_EMERG "PAX: refcount overflow detected in: %s:%d, uid/euid: %u/%u\n", current->comm, task_pid_nr(current),
+				from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
+	print_symbol(KERN_EMERG "PAX: refcount overflow occured at: %s\n", instruction_pointer(regs));
+	BUG();
+}
+#endif
+
+#ifdef CONFIG_PAX_USERCOPY
+/* 0: not at all, 1: fully, 2: fully inside frame, -1: partially (implies an error) */
+static noinline int check_stack_object(unsigned long obj, unsigned long len)
+{
+	const void * const stack = task_stack_page(current);
+	const void * const stackend = stack + THREAD_SIZE;
+
+#if defined(CONFIG_FRAME_POINTER) && defined(CONFIG_X86)
+	const void *frame = NULL;
+	const void *oldframe;
+#endif
+
+	if (obj + len < obj)
+		return -1;
+
+	if (obj + len <= (unsigned long)stack || (unsigned long)stackend <= obj)
+		return 0;
+
+	if (obj < (unsigned long)stack || (unsigned long)stackend < obj + len)
+		return -1;
+
+#if defined(CONFIG_FRAME_POINTER) && defined(CONFIG_X86)
+	oldframe = __builtin_frame_address(1);
+	if (oldframe)
+		frame = __builtin_frame_address(2);
+	/*
+	  low ----------------------------------------------> high
+	  [saved bp][saved ip][args][local vars][saved bp][saved ip]
+			      ^----------------^
+			  allow copies only within here
+	*/
+	while (stack <= frame && frame < stackend) {
+		/* if obj + len extends past the last frame, this
+		   check won't pass and the next frame will be 0,
+		   causing us to bail out and correctly report
+		   the copy as invalid
+		*/
+		if (obj + len <= (unsigned long)frame)
+			return obj >= (unsigned long)oldframe + 2 * sizeof(void *) ? 2 : -1;
+		oldframe = frame;
+		frame = *(const void * const *)frame;
+	}
+	return -1;
+#else
+	return 1;
+#endif
+}
+
+static __noreturn void pax_report_usercopy(const void *ptr, unsigned long len, bool to_user, const char *type)
+{
+	if (current->signal->curr_ip)
+		printk(KERN_EMERG "PAX: From %pI4: kernel memory %s attempt detected %s %p (%s) (%lu bytes)\n",
+			&current->signal->curr_ip, to_user ? "leak" : "overwrite", to_user ? "from" : "to", ptr, type ? : "unknown", len);
+	else
+		printk(KERN_EMERG "PAX: kernel memory %s attempt detected %s %p (%s) (%lu bytes)\n",
+			to_user ? "leak" : "overwrite", to_user ? "from" : "to", ptr, type ? : "unknown", len);
+	dump_stack();
+	gr_handle_kernel_exploit();
+	do_group_exit(SIGKILL);
+}
+#endif
+
+#ifdef CONFIG_PAX_USERCOPY
+
+static inline bool check_kernel_text_object(unsigned long low, unsigned long high)
+{
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+	unsigned long textlow = ktla_ktva((unsigned long)_stext);
+#ifdef CONFIG_MODULES
+	unsigned long texthigh = (unsigned long)MODULES_EXEC_VADDR;
+#else
+	unsigned long texthigh = ktla_ktva((unsigned long)_etext);
+#endif
+
+#else
+	unsigned long textlow = (unsigned long)_stext;
+	unsigned long texthigh = (unsigned long)_etext;
+
+#ifdef CONFIG_X86_64
+	/* check against linear mapping as well */
+	if (high > (unsigned long)__va(__pa(textlow)) &&
+	    low < (unsigned long)__va(__pa(texthigh)))
+		return true;
+#endif
+
+#endif
+
+	if (high <= textlow || low >= texthigh)
+		return false;
+	else
+		return true;
+}
+#endif
+
+void __check_object_size(const void *ptr, unsigned long n, bool to_user, bool const_size)
+{
+#ifdef CONFIG_PAX_USERCOPY
+	const char *type;
+#endif
+
+#if !defined(CONFIG_STACK_GROWSUP) && !defined(CONFIG_X86_64)
+	unsigned long stackstart = (unsigned long)task_stack_page(current);
+	unsigned long currentsp = (unsigned long)&stackstart;
+	if (unlikely((currentsp < stackstart + 512 ||
+		     currentsp >= stackstart + THREAD_SIZE) && !in_interrupt()))
+		BUG();
+#endif
+
+#ifndef CONFIG_PAX_USERCOPY_DEBUG
+	if (const_size)
+		return;
+#endif
+
+#ifdef CONFIG_PAX_USERCOPY
+	if (!n)
+		return;
+
+	type = check_heap_object(ptr, n);
+	if (!type) {
+		int ret = check_stack_object((unsigned long)ptr, n);
+		if (ret == 1 || ret == 2)
+			return;
+		if (ret == 0) {
+			if (check_kernel_text_object((unsigned long)ptr, (unsigned long)ptr + n))
+				type = "<kernel text>";
+			else
+				return;
+		} else
+			type = "<process stack>";
+	}
+
+	pax_report_usercopy(ptr, n, to_user, type);
+#endif
+
+}
+EXPORT_SYMBOL(__check_object_size);
+
+#ifdef CONFIG_PAX_MEMORY_STACKLEAK
+void __used pax_track_stack(void)
+{
+	unsigned long sp = (unsigned long)&sp;
+	if (sp < current_thread_info()->lowest_stack &&
+	    sp >= (unsigned long)task_stack_page(current) + 2 * sizeof(unsigned long))
+		current_thread_info()->lowest_stack = sp;
+	if (unlikely((sp & ~(THREAD_SIZE - 1)) < (THREAD_SIZE/16)))
+		BUG();
+}
+EXPORT_SYMBOL(pax_track_stack);
+#endif
+
+#ifdef CONFIG_PAX_SIZE_OVERFLOW
+
+static DEFINE_RATELIMIT_STATE(size_overflow_ratelimit, 15 * HZ, 3);
+extern bool pax_size_overflow_report_only;
+
+void __nocapture(1, 3, 4) __used report_size_overflow(const char *file, unsigned int line, const char *func, const char *ssa_name)
+{
+	if (!pax_size_overflow_report_only || __ratelimit(&size_overflow_ratelimit)) {
+		printk(KERN_EMERG "PAX: size overflow detected in function %s %s:%u %s", func, file, line, ssa_name);
+		dump_stack();
+	}
+	if (!pax_size_overflow_report_only)
+		do_group_exit(SIGKILL);
+}
+EXPORT_SYMBOL(report_size_overflow);
+#endif
diff --git a/fs/exofs/inode.c b/fs/exofs/inode.c
index 49e1bd0..41978bb 100644
--- a/fs/exofs/inode.c
+++ b/fs/exofs/inode.c
@@ -470,6 +470,11 @@ fail:
 	return ret;
 }
 
+static int readpage_filler(struct file *data, struct page *page)
+{
+	return readpage_strip(data, page);
+}
+
 static int exofs_readpages(struct file *file, struct address_space *mapping,
 			   struct list_head *pages, unsigned nr_pages)
 {
@@ -478,7 +483,7 @@ static int exofs_readpages(struct file *file, struct address_space *mapping,
 
 	_pcol_init(&pcol, nr_pages, mapping->host);
 
-	ret = read_cache_pages(mapping, pages, readpage_strip, &pcol);
+	ret = read_cache_pages(mapping, pages, readpage_filler, &pcol);
 	if (ret) {
 		EXOFS_ERR("read_cache_pages => %d\n", ret);
 		return ret;
diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c
index 9f9992b..8b59411 100644
--- a/fs/ext2/balloc.c
+++ b/fs/ext2/balloc.c
@@ -1184,10 +1184,10 @@ static int ext2_has_free_blocks(struct ext2_sb_info *sbi)
 
 	free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
 	root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count);
-	if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) &&
+	if (free_blocks < root_blocks + 1 &&
 		!uid_eq(sbi->s_resuid, current_fsuid()) &&
 		(gid_eq(sbi->s_resgid, GLOBAL_ROOT_GID) ||
-		 !in_group_p (sbi->s_resgid))) {
+		 !in_group_p (sbi->s_resgid)) && !capable_nolog(CAP_SYS_RESOURCE)) {
 		return 0;
 	}
 	return 1;
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index b78caf2..b568bde 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -273,10 +273,8 @@ static int ext2_show_options(struct seq_file *seq, struct dentry *root)
 #ifdef CONFIG_EXT2_FS_XATTR
 	if (test_opt(sb, XATTR_USER))
 		seq_puts(seq, ",user_xattr");
-	if (!test_opt(sb, XATTR_USER) &&
-	    (def_mount_opts & EXT2_DEFM_XATTR_USER)) {
+	if (!test_opt(sb, XATTR_USER))
 		seq_puts(seq, ",nouser_xattr");
-	}
 #endif
 
 #ifdef CONFIG_EXT2_FS_POSIX_ACL
@@ -864,8 +862,8 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
 	if (def_mount_opts & EXT2_DEFM_UID16)
 		set_opt(sbi->s_mount_opt, NO_UID32);
 #ifdef CONFIG_EXT2_FS_XATTR
-	if (def_mount_opts & EXT2_DEFM_XATTR_USER)
-		set_opt(sbi->s_mount_opt, XATTR_USER);
+	/* always enable user xattrs */
+	set_opt(sbi->s_mount_opt, XATTR_USER);
 #endif
 #ifdef CONFIG_EXT2_FS_POSIX_ACL
 	if (def_mount_opts & EXT2_DEFM_ACL)
diff --git a/fs/ext2/xattr.c b/fs/ext2/xattr.c
index 1a5e3bf..3229306 100644
--- a/fs/ext2/xattr.c
+++ b/fs/ext2/xattr.c
@@ -244,7 +244,7 @@ ext2_xattr_list(struct dentry *dentry, char *buffer, size_t buffer_size)
 	struct buffer_head *bh = NULL;
 	struct ext2_xattr_entry *entry;
 	char *end;
-	size_t rest = buffer_size;
+	size_t rest = buffer_size, total_size = 0;
 	int error;
 	struct mb_cache *ext2_mb_cache = EXT2_SB(inode->i_sb)->s_mb_cache;
 
@@ -307,9 +307,10 @@ bad_block:	ext2_error(inode->i_sb, "ext2_xattr_list",
 				*buffer++ = 0;
 			}
 			rest -= size;
+			total_size += size;
 		}
 	}
-	error = buffer_size - rest;  /* total size */
+	error = total_size;
 
 cleanup:
 	brelse(bh);
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index fe1f50f..3f4c870 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -563,8 +563,8 @@ static int ext4_has_free_clusters(struct ext4_sb_info *sbi,
 	/* Hm, nope.  Are (enough) root reserved clusters available? */
 	if (uid_eq(sbi->s_resuid, current_fsuid()) ||
 	    (!gid_eq(sbi->s_resgid, GLOBAL_ROOT_GID) && in_group_p(sbi->s_resgid)) ||
-	    capable(CAP_SYS_RESOURCE) ||
-	    (flags & EXT4_MB_USE_ROOT_BLOCKS)) {
+	    (flags & EXT4_MB_USE_ROOT_BLOCKS) ||
+	    capable_nolog(CAP_SYS_RESOURCE)) {
 
 		if (free_clusters >= (nclusters + dirty_clusters +
 				      resv_clusters))
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 349afeb..904541a 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1441,19 +1441,19 @@ struct ext4_sb_info {
 	unsigned long s_mb_last_start;
 
 	/* stats for buddy allocator */
-	atomic_t s_bal_reqs;	/* number of reqs with len > 1 */
-	atomic_t s_bal_success;	/* we found long enough chunks */
-	atomic_t s_bal_allocated;	/* in blocks */
-	atomic_t s_bal_ex_scanned;	/* total extents scanned */
-	atomic_t s_bal_goals;	/* goal hits */
-	atomic_t s_bal_breaks;	/* too long searches */
-	atomic_t s_bal_2orders;	/* 2^order hits */
+	atomic_unchecked_t s_bal_reqs;	/* number of reqs with len > 1 */
+	atomic_unchecked_t s_bal_success;	/* we found long enough chunks */
+	atomic_unchecked_t s_bal_allocated;	/* in blocks */
+	atomic_unchecked_t s_bal_ex_scanned;	/* total extents scanned */
+	atomic_unchecked_t s_bal_goals;	/* goal hits */
+	atomic_unchecked_t s_bal_breaks;	/* too long searches */
+	atomic_unchecked_t s_bal_2orders;	/* 2^order hits */
 	spinlock_t s_bal_lock;
 	unsigned long s_mb_buddies_generated;
 	unsigned long long s_mb_generation_time;
-	atomic_t s_mb_lost_chunks;
-	atomic_t s_mb_preallocated;
-	atomic_t s_mb_discarded;
+	atomic_unchecked_t s_mb_lost_chunks;
+	atomic_unchecked_t s_mb_preallocated;
+	atomic_unchecked_t s_mb_discarded;
 	atomic_t s_lock_busy;
 
 	/* locality groups */
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 95bf467..d9294fc 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -863,7 +863,7 @@ ext4_find_extent(struct inode *inode, ext4_lblk_t block,
 	struct ext4_extent_header *eh;
 	struct buffer_head *bh;
 	struct ext4_ext_path *path = orig_path ? *orig_path : NULL;
-	short int depth, i, ppos = 0;
+	int depth, i, ppos = 0;
 	int ret;
 
 	eh = ext_inode_hdr(inode);
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 9d26fa2..169a7b1 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -1921,7 +1921,7 @@ void ext4_mb_simple_scan_group(struct ext4_allocation_context *ac,
 		BUG_ON(ac->ac_b_ex.fe_len != ac->ac_g_ex.fe_len);
 
 		if (EXT4_SB(sb)->s_mb_stats)
-			atomic_inc(&EXT4_SB(sb)->s_bal_2orders);
+			atomic_inc_unchecked(&EXT4_SB(sb)->s_bal_2orders);
 
 		break;
 	}
@@ -2244,7 +2244,7 @@ repeat:
 			ac->ac_status = AC_STATUS_CONTINUE;
 			ac->ac_flags |= EXT4_MB_HINT_FIRST;
 			cr = 3;
-			atomic_inc(&sbi->s_mb_lost_chunks);
+			atomic_inc_unchecked(&sbi->s_mb_lost_chunks);
 			goto repeat;
 		}
 	}
@@ -2743,25 +2743,25 @@ int ext4_mb_release(struct super_block *sb)
 	if (sbi->s_mb_stats) {
 		ext4_msg(sb, KERN_INFO,
 		       "mballoc: %u blocks %u reqs (%u success)",
-				atomic_read(&sbi->s_bal_allocated),
-				atomic_read(&sbi->s_bal_reqs),
-				atomic_read(&sbi->s_bal_success));
+				atomic_read_unchecked(&sbi->s_bal_allocated),
+				atomic_read_unchecked(&sbi->s_bal_reqs),
+				atomic_read_unchecked(&sbi->s_bal_success));
 		ext4_msg(sb, KERN_INFO,
 		      "mballoc: %u extents scanned, %u goal hits, "
 				"%u 2^N hits, %u breaks, %u lost",
-				atomic_read(&sbi->s_bal_ex_scanned),
-				atomic_read(&sbi->s_bal_goals),
-				atomic_read(&sbi->s_bal_2orders),
-				atomic_read(&sbi->s_bal_breaks),
-				atomic_read(&sbi->s_mb_lost_chunks));
+				atomic_read_unchecked(&sbi->s_bal_ex_scanned),
+				atomic_read_unchecked(&sbi->s_bal_goals),
+				atomic_read_unchecked(&sbi->s_bal_2orders),
+				atomic_read_unchecked(&sbi->s_bal_breaks),
+				atomic_read_unchecked(&sbi->s_mb_lost_chunks));
 		ext4_msg(sb, KERN_INFO,
 		       "mballoc: %lu generated and it took %Lu",
 				sbi->s_mb_buddies_generated,
 				sbi->s_mb_generation_time);
 		ext4_msg(sb, KERN_INFO,
 		       "mballoc: %u preallocated, %u discarded",
-				atomic_read(&sbi->s_mb_preallocated),
-				atomic_read(&sbi->s_mb_discarded));
+				atomic_read_unchecked(&sbi->s_mb_preallocated),
+				atomic_read_unchecked(&sbi->s_mb_discarded));
 	}
 
 	free_percpu(sbi->s_locality_groups);
@@ -3219,16 +3219,16 @@ static void ext4_mb_collect_stats(struct ext4_allocation_context *ac)
 	struct ext4_sb_info *sbi = EXT4_SB(ac->ac_sb);
 
 	if (sbi->s_mb_stats && ac->ac_g_ex.fe_len > 1) {
-		atomic_inc(&sbi->s_bal_reqs);
-		atomic_add(ac->ac_b_ex.fe_len, &sbi->s_bal_allocated);
+		atomic_inc_unchecked(&sbi->s_bal_reqs);
+		atomic_add_unchecked(ac->ac_b_ex.fe_len, &sbi->s_bal_allocated);
 		if (ac->ac_b_ex.fe_len >= ac->ac_o_ex.fe_len)
-			atomic_inc(&sbi->s_bal_success);
-		atomic_add(ac->ac_found, &sbi->s_bal_ex_scanned);
+			atomic_inc_unchecked(&sbi->s_bal_success);
+		atomic_add_unchecked(ac->ac_found, &sbi->s_bal_ex_scanned);
 		if (ac->ac_g_ex.fe_start == ac->ac_b_ex.fe_start &&
 				ac->ac_g_ex.fe_group == ac->ac_b_ex.fe_group)
-			atomic_inc(&sbi->s_bal_goals);
+			atomic_inc_unchecked(&sbi->s_bal_goals);
 		if (ac->ac_found > sbi->s_mb_max_to_scan)
-			atomic_inc(&sbi->s_bal_breaks);
+			atomic_inc_unchecked(&sbi->s_bal_breaks);
 	}
 
 	if (ac->ac_op == EXT4_MB_HISTORY_ALLOC)
@@ -3655,7 +3655,7 @@ ext4_mb_new_inode_pa(struct ext4_allocation_context *ac)
 	trace_ext4_mb_new_inode_pa(ac, pa);
 
 	ext4_mb_use_inode_pa(ac, pa);
-	atomic_add(pa->pa_free, &sbi->s_mb_preallocated);
+	atomic_add_unchecked(pa->pa_free, &sbi->s_mb_preallocated);
 
 	ei = EXT4_I(ac->ac_inode);
 	grp = ext4_get_group_info(sb, ac->ac_b_ex.fe_group);
@@ -3715,7 +3715,7 @@ ext4_mb_new_group_pa(struct ext4_allocation_context *ac)
 	trace_ext4_mb_new_group_pa(ac, pa);
 
 	ext4_mb_use_group_pa(ac, pa);
-	atomic_add(pa->pa_free, &EXT4_SB(sb)->s_mb_preallocated);
+	atomic_add_unchecked(pa->pa_free, &EXT4_SB(sb)->s_mb_preallocated);
 
 	grp = ext4_get_group_info(sb, ac->ac_b_ex.fe_group);
 	lg = ac->ac_lg;
@@ -3804,7 +3804,7 @@ ext4_mb_release_inode_pa(struct ext4_buddy *e4b, struct buffer_head *bitmap_bh,
 		 * from the bitmap and continue.
 		 */
 	}
-	atomic_add(free, &sbi->s_mb_discarded);
+	atomic_add_unchecked(free, &sbi->s_mb_discarded);
 
 	return err;
 }
@@ -3822,7 +3822,7 @@ ext4_mb_release_group_pa(struct ext4_buddy *e4b,
 	ext4_get_group_no_and_offset(sb, pa->pa_pstart, &group, &bit);
 	BUG_ON(group != e4b->bd_group && pa->pa_len != 0);
 	mb_free_blocks(pa->pa_inode, e4b, bit, pa->pa_len);
-	atomic_add(pa->pa_len, &EXT4_SB(sb)->s_mb_discarded);
+	atomic_add_unchecked(pa->pa_len, &EXT4_SB(sb)->s_mb_discarded);
 	trace_ext4_mballoc_discard(sb, NULL, group, bit, pa->pa_len);
 
 	return 0;
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 34038e3..322fe62 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -413,7 +413,7 @@ static int set_flexbg_block_bitmap(struct super_block *sb, handle_t *handle,
 
 	ext4_debug("mark blocks [%llu/%u] used\n", block, count);
 	for (count2 = count; count > 0; count -= count2, block += count2) {
-		ext4_fsblk_t start;
+		ext4_fsblk_t start, diff;
 		struct buffer_head *bh;
 		ext4_group_t group;
 		int err;
@@ -422,10 +422,6 @@ static int set_flexbg_block_bitmap(struct super_block *sb, handle_t *handle,
 		start = ext4_group_first_block_no(sb, group);
 		group -= flex_gd->groups[0].group;
 
-		count2 = EXT4_BLOCKS_PER_GROUP(sb) - (block - start);
-		if (count2 > count)
-			count2 = count;
-
 		if (flex_gd->bg_flags[group] & EXT4_BG_BLOCK_UNINIT) {
 			BUG_ON(flex_gd->count > 1);
 			continue;
@@ -443,9 +439,15 @@ static int set_flexbg_block_bitmap(struct super_block *sb, handle_t *handle,
 		err = ext4_journal_get_write_access(handle, bh);
 		if (err)
 			return err;
+
+		diff = block - start;
+		count2 = EXT4_BLOCKS_PER_GROUP(sb) - diff;
+		if (count2 > count)
+			count2 = count;
+
 		ext4_debug("mark block bitmap %#04llx (+%llu/%u)\n", block,
-			   block - start, count2);
-		ext4_set_bits(bh->b_data, block - start, count2);
+			   diff, count2);
+		ext4_set_bits(bh->b_data, diff, count2);
 
 		err = ext4_handle_dirty_metadata(handle, NULL, bh);
 		if (unlikely(err))
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 304c712..2c8f9bd 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1306,7 +1306,7 @@ static ext4_fsblk_t get_sb_block(void **data)
 }
 
 #define DEFAULT_JOURNAL_IOPRIO (IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 3))
-static char deprecated_msg[] = "Mount option \"%s\" will be removed by %s\n"
+static const char deprecated_msg[] = "Mount option \"%s\" will be removed by %s\n"
 	"Contact linux-ext4@vger.kernel.org if you think we should keep it.\n";
 
 #ifdef CONFIG_QUOTA
diff --git a/fs/ext4/sysfs.c b/fs/ext4/sysfs.c
index 1420a3c..e87523c 100644
--- a/fs/ext4/sysfs.c
+++ b/fs/ext4/sysfs.c
@@ -45,7 +45,7 @@ struct ext4_attr {
 		int offset;
 		void *explicit_ptr;
 	} u;
-};
+} __do_const;
 
 static ssize_t session_write_kbytes_show(struct ext4_attr *a,
 					 struct ext4_sb_info *sbi, char *buf)
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index e79bd32..769b6b3 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -417,7 +417,7 @@ static int
 ext4_xattr_list_entries(struct dentry *dentry, struct ext4_xattr_entry *entry,
 			char *buffer, size_t buffer_size)
 {
-	size_t rest = buffer_size;
+	size_t rest = buffer_size, total_size = 0;
 
 	for (; !IS_LAST_ENTRY(entry); entry = EXT4_XATTR_NEXT(entry)) {
 		const struct xattr_handler *handler =
@@ -438,9 +438,10 @@ ext4_xattr_list_entries(struct dentry *dentry, struct ext4_xattr_entry *entry,
 				*buffer++ = 0;
 			}
 			rest -= size;
+			total_size += size;
 		}
 	}
-	return buffer_size - rest;  /* total size */
+	return total_size;
 }
 
 static int
diff --git a/fs/fcntl.c b/fs/fcntl.c
index 350a2c8..9fb9bf7 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
@@ -103,6 +103,10 @@ void __f_setown(struct file *filp, struct pid *pid, enum pid_type type,
 		int force)
 {
 	security_file_set_fowner(filp);
+	if (gr_handle_chroot_fowner(pid, type))
+		return;
+	if (gr_check_protected_task_fowner(pid, type))
+		return;
 	f_modown(filp, pid, type, force);
 }
 EXPORT_SYMBOL(__f_setown);
diff --git a/fs/fhandle.c b/fs/fhandle.c
index ca3c3dd..0c5456e 100644
--- a/fs/fhandle.c
+++ b/fs/fhandle.c
@@ -8,6 +8,7 @@
 #include <linux/fs_struct.h>
 #include <linux/fsnotify.h>
 #include <linux/personality.h>
+#include <linux/grsecurity.h>
 #include <asm/uaccess.h>
 #include "internal.h"
 #include "mount.h"
@@ -67,8 +68,7 @@ static long do_sys_name_to_handle(struct path *path,
 	} else
 		retval = 0;
 	/* copy the mount id */
-	if (copy_to_user(mnt_id, &real_mount(path->mnt)->mnt_id,
-			 sizeof(*mnt_id)) ||
+	if (put_user(real_mount(path->mnt)->mnt_id, mnt_id) ||
 	    copy_to_user(ufh, handle,
 			 sizeof(struct file_handle) + handle_bytes))
 		retval = -EFAULT;
@@ -175,7 +175,7 @@ static int handle_to_path(int mountdirfd, struct file_handle __user *ufh,
 	 * the directory. Ideally we would like CAP_DAC_SEARCH.
 	 * But we don't have that
 	 */
-	if (!capable(CAP_DAC_READ_SEARCH)) {
+	if (!capable(CAP_DAC_READ_SEARCH) || !gr_chroot_fhandle()) {
 		retval = -EPERM;
 		goto out_err;
 	}
@@ -197,7 +197,7 @@ static int handle_to_path(int mountdirfd, struct file_handle __user *ufh,
 	/* copy the full handle */
 	*handle = f_handle;
 	if (copy_from_user(&handle->f_handle,
-			   &ufh->f_handle,
+			   ufh->f_handle,
 			   f_handle.handle_bytes)) {
 		retval = -EFAULT;
 		goto out_handle;
diff --git a/fs/file.c b/fs/file.c
index 1fbc5c0..7cfb36d 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -16,6 +16,7 @@
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
 #include <linux/file.h>
+#include <linux/security.h>
 #include <linux/fdtable.h>
 #include <linux/bitops.h>
 #include <linux/interrupt.h>
@@ -163,9 +164,10 @@ out:
  * Return <0 error code on error; 1 on successful completion.
  * The files->file_lock should be held on entry, and will be held on exit.
  */
-static int expand_fdtable(struct files_struct *files, int nr)
-	__releases(files->file_lock)
-	__acquires(files->file_lock)
+static int expand_fdtable(struct files_struct *files, unsigned int nr)
+	__releases(&files->file_lock)
+	__acquires(&files->file_lock);
+static int expand_fdtable(struct files_struct *files, unsigned int nr)
 {
 	struct fdtable *new_fdt, *cur_fdt;
 
@@ -208,9 +210,10 @@ static int expand_fdtable(struct files_struct *files, int nr)
  * expanded and execution may have blocked.
  * The files->file_lock should be held on entry, and will be held on exit.
  */
-static int expand_files(struct files_struct *files, int nr)
-	__releases(files->file_lock)
-	__acquires(files->file_lock)
+static int expand_files(struct files_struct *files, unsigned int nr)
+	__releases(&files->file_lock)
+	__acquires(&files->file_lock);
+static int expand_files(struct files_struct *files, unsigned int nr)
 {
 	struct fdtable *fdt;
 	int expanded = 0;
@@ -817,7 +820,9 @@ bool get_close_on_exec(unsigned int fd)
 
 static int do_dup2(struct files_struct *files,
 	struct file *file, unsigned fd, unsigned flags)
-__releases(&files->file_lock)
+__releases(&files->file_lock);
+static int do_dup2(struct files_struct *files,
+	struct file *file, unsigned fd, unsigned flags)
 {
 	struct file *tofree;
 	struct fdtable *fdt;
@@ -867,6 +872,7 @@ int replace_fd(unsigned fd, struct file *file, unsigned flags)
 	if (!file)
 		return __close_fd(files, fd);
 
+	gr_learn_resource(current, RLIMIT_NOFILE, fd, 0);
 	if (fd >= rlimit(RLIMIT_NOFILE))
 		return -EBADF;
 
@@ -893,6 +899,7 @@ SYSCALL_DEFINE3(dup3, unsigned int, oldfd, unsigned int, newfd, int, flags)
 	if (unlikely(oldfd == newfd))
 		return -EINVAL;
 
+	gr_learn_resource(current, RLIMIT_NOFILE, newfd, 0);
 	if (newfd >= rlimit(RLIMIT_NOFILE))
 		return -EBADF;
 
@@ -948,6 +955,7 @@ SYSCALL_DEFINE1(dup, unsigned int, fildes)
 int f_dupfd(unsigned int from, struct file *file, unsigned flags)
 {
 	int err;
+	gr_learn_resource(current, RLIMIT_NOFILE, from, 0);
 	if (from >= rlimit(RLIMIT_NOFILE))
 		return -EINVAL;
 	err = alloc_fd(from, flags);
diff --git a/fs/filesystems.c b/fs/filesystems.c
index c5618db..50c38f4 100644
--- a/fs/filesystems.c
+++ b/fs/filesystems.c
@@ -275,7 +275,11 @@ struct file_system_type *get_fs_type(const char *name)
 	int len = dot ? dot - name : strlen(name);
 
 	fs = __get_fs_type(name, len);
+#ifdef CONFIG_GRKERNSEC_MODHARDEN
+	if (!fs && (___request_module(true, "grsec_modharden_fs", "fs-%.*s", len, name) == 0))
+#else
 	if (!fs && (request_module("fs-%.*s", len, name) == 0))
+#endif
 		fs = __get_fs_type(name, len);
 
 	if (dot && fs && !(fs->fs_flags & FS_HAS_SUBTYPE)) {
diff --git a/fs/freevxfs/vxfs_inode.c b/fs/freevxfs/vxfs_inode.c
index 3e2ccad..9d5d23e 100644
--- a/fs/freevxfs/vxfs_inode.c
+++ b/fs/freevxfs/vxfs_inode.c
@@ -97,11 +97,11 @@ vxfs_blkiget(struct super_block *sbp, u_long extent, ino_t ino)
 
 	if (bp && buffer_mapped(bp)) {
 		struct vxfs_inode_info	*vip;
-		struct vxfs_dinode	*dip;
+		struct vxfs_inode_info	*dip;
 
 		if (!(vip = kmem_cache_alloc(vxfs_inode_cachep, GFP_KERNEL)))
 			goto fail;
-		dip = (struct vxfs_dinode *)(bp->b_data + offset);
+		dip = (struct vxfs_inode_info *)(bp->b_data + offset);
 		memcpy(vip, dip, sizeof(*vip));
 #ifdef DIAGNOSTIC
 		vxfs_dumpi(vip, ino);
@@ -138,12 +138,12 @@ __vxfs_iget(ino_t ino, struct inode *ilistp)
 
 	if (!IS_ERR(pp)) {
 		struct vxfs_inode_info	*vip;
-		struct vxfs_dinode	*dip;
+		struct vxfs_inode_info	*dip;
 		caddr_t			kaddr = (char *)page_address(pp);
 
 		if (!(vip = kmem_cache_alloc(vxfs_inode_cachep, GFP_KERNEL)))
 			goto fail;
-		dip = (struct vxfs_dinode *)(kaddr + offset);
+		dip = (struct vxfs_inode_info *)(kaddr + offset);
 		memcpy(vip, dip, sizeof(*vip));
 #ifdef DIAGNOSTIC
 		vxfs_dumpi(vip, ino);
diff --git a/fs/freevxfs/vxfs_inode.h b/fs/freevxfs/vxfs_inode.h
index 240aeb1..b7dad4f 100644
--- a/fs/freevxfs/vxfs_inode.h
+++ b/fs/freevxfs/vxfs_inode.h
@@ -96,7 +96,7 @@ struct vxfs_typed_dev4 {
 /*
  * The inode as contained on the physical device.
  */
-struct vxfs_dinode {
+struct vxfs_inode_info {
 	int32_t		vdi_mode;
 	u_int32_t	vdi_nlink;	/* Link count */
 	u_int32_t	vdi_uid;	/* UID */
@@ -152,7 +152,7 @@ struct vxfs_dinode {
  *
  * TBD: This should become a separate structure...
  */
-#define vxfs_inode_info	vxfs_dinode
+//#define vxfs_inode_info	vxfs_dinode
 
 #define vii_mode	vdi_mode
 #define vii_uid		vdi_uid
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 592cea5..a93fb5c 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -880,9 +880,9 @@ fs_initcall(cgroup_writeback_init);
 #else	/* CONFIG_CGROUP_WRITEBACK */
 
 static struct bdi_writeback *
+locked_inode_to_wb_and_lock_list(struct inode *inode) __releases(&inode->i_lock) __acquires(&wb->list_lock);
+static struct bdi_writeback *
 locked_inode_to_wb_and_lock_list(struct inode *inode)
-	__releases(&inode->i_lock)
-	__acquires(&wb->list_lock)
 {
 	struct bdi_writeback *wb = inode_to_wb(inode);
 
@@ -891,8 +891,8 @@ locked_inode_to_wb_and_lock_list(struct inode *inode)
 	return wb;
 }
 
+static struct bdi_writeback *inode_to_wb_and_lock_list(struct inode *inode) __acquires(&wb->list_lock);
 static struct bdi_writeback *inode_to_wb_and_lock_list(struct inode *inode)
-	__acquires(&wb->list_lock)
 {
 	struct bdi_writeback *wb = inode_to_wb(inode);
 
@@ -1136,9 +1136,8 @@ static int write_inode(struct inode *inode, struct writeback_control *wbc)
  * Wait for writeback on an inode to complete. Called with i_lock held.
  * Caller must make sure inode cannot go away when we drop i_lock.
  */
+static void __inode_wait_for_writeback(struct inode *inode) __must_hold(&inode->i_lock);
 static void __inode_wait_for_writeback(struct inode *inode)
-	__releases(inode->i_lock)
-	__acquires(inode->i_lock)
 {
 	DEFINE_WAIT_BIT(wq, &inode->i_state, __I_SYNC);
 	wait_queue_head_t *wqh;
@@ -1167,8 +1166,8 @@ void inode_wait_for_writeback(struct inode *inode)
  * held and drops it. It is aimed for callers not holding any inode reference
  * so once i_lock is dropped, inode can go away.
  */
+static void inode_sleep_on_writeback(struct inode *inode) __releases(&inode->i_lock);
 static void inode_sleep_on_writeback(struct inode *inode)
-	__releases(inode->i_lock)
 {
 	DEFINE_WAIT(wait);
 	wait_queue_head_t *wqh = bit_waitqueue(&inode->i_state, __I_SYNC);
diff --git a/fs/fs_struct.c b/fs/fs_struct.c
index 7dca743..1ff87ae 100644
--- a/fs/fs_struct.c
+++ b/fs/fs_struct.c
@@ -4,6 +4,7 @@
 #include <linux/path.h>
 #include <linux/slab.h>
 #include <linux/fs_struct.h>
+#include <linux/grsecurity.h>
 #include "internal.h"
 
 /*
@@ -15,14 +16,18 @@ void set_fs_root(struct fs_struct *fs, const struct path *path)
 	struct path old_root;
 
 	path_get(path);
+	gr_inc_chroot_refcnts(path->dentry, path->mnt);
 	spin_lock(&fs->lock);
 	write_seqcount_begin(&fs->seq);
 	old_root = fs->root;
 	fs->root = *path;
+	gr_set_chroot_entries(current, path);
 	write_seqcount_end(&fs->seq);
 	spin_unlock(&fs->lock);
-	if (old_root.dentry)
+	if (old_root.dentry) {
+		gr_dec_chroot_refcnts(old_root.dentry, old_root.mnt);
 		path_put(&old_root);
+	}
 }
 
 /*
@@ -67,6 +72,10 @@ void chroot_fs_refs(const struct path *old_root, const struct path *new_root)
 			int hits = 0;
 			spin_lock(&fs->lock);
 			write_seqcount_begin(&fs->seq);
+			/* this root replacement is only done by pivot_root,
+			   leave grsec's chroot tagging alone for this task
+			   so that a pivoted root isn't treated as a chroot
+			*/
 			hits += replace_path(&fs->root, old_root, new_root);
 			hits += replace_path(&fs->pwd, old_root, new_root);
 			write_seqcount_end(&fs->seq);
@@ -85,6 +94,7 @@ void chroot_fs_refs(const struct path *old_root, const struct path *new_root)
 
 void free_fs_struct(struct fs_struct *fs)
 {
+	gr_dec_chroot_refcnts(fs->root.dentry, fs->root.mnt);
 	path_put(&fs->root);
 	path_put(&fs->pwd);
 	kmem_cache_free(fs_cachep, fs);
@@ -99,7 +109,8 @@ void exit_fs(struct task_struct *tsk)
 		task_lock(tsk);
 		spin_lock(&fs->lock);
 		tsk->fs = NULL;
-		kill = !--fs->users;
+		gr_clear_chroot_entries(tsk);
+		kill = !atomic_dec_return(&fs->users);
 		spin_unlock(&fs->lock);
 		task_unlock(tsk);
 		if (kill)
@@ -112,7 +123,7 @@ struct fs_struct *copy_fs_struct(struct fs_struct *old)
 	struct fs_struct *fs = kmem_cache_alloc(fs_cachep, GFP_KERNEL);
 	/* We don't need to lock fs - think why ;-) */
 	if (fs) {
-		fs->users = 1;
+		atomic_set(&fs->users, 1);
 		fs->in_exec = 0;
 		spin_lock_init(&fs->lock);
 		seqcount_init(&fs->seq);
@@ -121,9 +132,13 @@ struct fs_struct *copy_fs_struct(struct fs_struct *old)
 		spin_lock(&old->lock);
 		fs->root = old->root;
 		path_get(&fs->root);
+		/* instead of calling gr_set_chroot_entries here,
+		   we call it from every caller of this function
+		*/
 		fs->pwd = old->pwd;
 		path_get(&fs->pwd);
 		spin_unlock(&old->lock);
+		gr_inc_chroot_refcnts(fs->root.dentry, fs->root.mnt);
 	}
 	return fs;
 }
@@ -139,8 +154,9 @@ int unshare_fs_struct(void)
 
 	task_lock(current);
 	spin_lock(&fs->lock);
-	kill = !--fs->users;
+	kill = !atomic_dec_return(&fs->users);
 	current->fs = new_fs;
+	gr_set_chroot_entries(current, &new_fs->root);
 	spin_unlock(&fs->lock);
 	task_unlock(current);
 
@@ -153,13 +169,13 @@ EXPORT_SYMBOL_GPL(unshare_fs_struct);
 
 int current_umask(void)
 {
-	return current->fs->umask;
+	return current->fs->umask | gr_acl_umask();
 }
 EXPORT_SYMBOL(current_umask);
 
 /* to be mentioned only in INIT_TASK */
 struct fs_struct init_fs = {
-	.users		= 1,
+	.users		= ATOMIC_INIT(1),
 	.lock		= __SPIN_LOCK_UNLOCKED(init_fs.lock),
 	.seq		= SEQCNT_ZERO(init_fs.seq),
 	.umask		= 0022,
diff --git a/fs/fscache/cookie.c b/fs/fscache/cookie.c
index 43040721..2780191 100644
--- a/fs/fscache/cookie.c
+++ b/fs/fscache/cookie.c
@@ -19,7 +19,7 @@
 
 struct kmem_cache *fscache_cookie_jar;
 
-static atomic_t fscache_object_debug_id = ATOMIC_INIT(0);
+static atomic_unchecked_t fscache_object_debug_id = ATOMIC_INIT(0);
 
 static int fscache_acquire_non_index_cookie(struct fscache_cookie *cookie);
 static int fscache_alloc_object(struct fscache_cache *cache,
@@ -69,11 +69,11 @@ struct fscache_cookie *__fscache_acquire_cookie(
 	       parent ? (char *) parent->def->name : "<no-parent>",
 	       def->name, netfs_data, enable);
 
-	fscache_stat(&fscache_n_acquires);
+	fscache_stat_unchecked(&fscache_n_acquires);
 
 	/* if there's no parent cookie, then we don't create one here either */
 	if (!parent) {
-		fscache_stat(&fscache_n_acquires_null);
+		fscache_stat_unchecked(&fscache_n_acquires_null);
 		_leave(" [no parent]");
 		return NULL;
 	}
@@ -88,7 +88,7 @@ struct fscache_cookie *__fscache_acquire_cookie(
 	/* allocate and initialise a cookie */
 	cookie = kmem_cache_alloc(fscache_cookie_jar, GFP_KERNEL);
 	if (!cookie) {
-		fscache_stat(&fscache_n_acquires_oom);
+		fscache_stat_unchecked(&fscache_n_acquires_oom);
 		_leave(" [ENOMEM]");
 		return NULL;
 	}
@@ -115,13 +115,13 @@ struct fscache_cookie *__fscache_acquire_cookie(
 
 	switch (cookie->def->type) {
 	case FSCACHE_COOKIE_TYPE_INDEX:
-		fscache_stat(&fscache_n_cookie_index);
+		fscache_stat_unchecked(&fscache_n_cookie_index);
 		break;
 	case FSCACHE_COOKIE_TYPE_DATAFILE:
-		fscache_stat(&fscache_n_cookie_data);
+		fscache_stat_unchecked(&fscache_n_cookie_data);
 		break;
 	default:
-		fscache_stat(&fscache_n_cookie_special);
+		fscache_stat_unchecked(&fscache_n_cookie_special);
 		break;
 	}
 
@@ -135,7 +135,7 @@ struct fscache_cookie *__fscache_acquire_cookie(
 			} else {
 				atomic_dec(&parent->n_children);
 				__fscache_cookie_put(cookie);
-				fscache_stat(&fscache_n_acquires_nobufs);
+				fscache_stat_unchecked(&fscache_n_acquires_nobufs);
 				_leave(" = NULL");
 				return NULL;
 			}
@@ -144,7 +144,7 @@ struct fscache_cookie *__fscache_acquire_cookie(
 		}
 	}
 
-	fscache_stat(&fscache_n_acquires_ok);
+	fscache_stat_unchecked(&fscache_n_acquires_ok);
 	_leave(" = %p", cookie);
 	return cookie;
 }
@@ -213,7 +213,7 @@ static int fscache_acquire_non_index_cookie(struct fscache_cookie *cookie)
 	cache = fscache_select_cache_for_object(cookie->parent);
 	if (!cache) {
 		up_read(&fscache_addremove_sem);
-		fscache_stat(&fscache_n_acquires_no_cache);
+		fscache_stat_unchecked(&fscache_n_acquires_no_cache);
 		_leave(" = -ENOMEDIUM [no cache]");
 		return -ENOMEDIUM;
 	}
@@ -297,14 +297,14 @@ static int fscache_alloc_object(struct fscache_cache *cache,
 	object = cache->ops->alloc_object(cache, cookie);
 	fscache_stat_d(&fscache_n_cop_alloc_object);
 	if (IS_ERR(object)) {
-		fscache_stat(&fscache_n_object_no_alloc);
+		fscache_stat_unchecked(&fscache_n_object_no_alloc);
 		ret = PTR_ERR(object);
 		goto error;
 	}
 
-	fscache_stat(&fscache_n_object_alloc);
+	fscache_stat_unchecked(&fscache_n_object_alloc);
 
-	object->debug_id = atomic_inc_return(&fscache_object_debug_id);
+	object->debug_id = atomic_inc_return_unchecked(&fscache_object_debug_id);
 
 	_debug("ALLOC OBJ%x: %s {%lx}",
 	       object->debug_id, cookie->def->name, object->events);
@@ -419,7 +419,7 @@ void __fscache_invalidate(struct fscache_cookie *cookie)
 
 	_enter("{%s}", cookie->def->name);
 
-	fscache_stat(&fscache_n_invalidates);
+	fscache_stat_unchecked(&fscache_n_invalidates);
 
 	/* Only permit invalidation of data files.  Invalidating an index will
 	 * require the caller to release all its attachments to the tree rooted
@@ -477,10 +477,10 @@ void __fscache_update_cookie(struct fscache_cookie *cookie)
 {
 	struct fscache_object *object;
 
-	fscache_stat(&fscache_n_updates);
+	fscache_stat_unchecked(&fscache_n_updates);
 
 	if (!cookie) {
-		fscache_stat(&fscache_n_updates_null);
+		fscache_stat_unchecked(&fscache_n_updates_null);
 		_leave(" [no cookie]");
 		return;
 	}
@@ -581,12 +581,12 @@ EXPORT_SYMBOL(__fscache_disable_cookie);
  */
 void __fscache_relinquish_cookie(struct fscache_cookie *cookie, bool retire)
 {
-	fscache_stat(&fscache_n_relinquishes);
+	fscache_stat_unchecked(&fscache_n_relinquishes);
 	if (retire)
-		fscache_stat(&fscache_n_relinquishes_retire);
+		fscache_stat_unchecked(&fscache_n_relinquishes_retire);
 
 	if (!cookie) {
-		fscache_stat(&fscache_n_relinquishes_null);
+		fscache_stat_unchecked(&fscache_n_relinquishes_null);
 		_leave(" [no cookie]");
 		return;
 	}
@@ -687,7 +687,7 @@ int __fscache_check_consistency(struct fscache_cookie *cookie)
 	if (test_bit(FSCACHE_IOERROR, &object->cache->flags))
 		goto inconsistent;
 
-	op->debug_id = atomic_inc_return(&fscache_op_debug_id);
+	op->debug_id = atomic_inc_return_unchecked(&fscache_op_debug_id);
 
 	__fscache_use_cookie(cookie);
 	if (fscache_submit_op(object, op) < 0)
diff --git a/fs/fscache/internal.h b/fs/fscache/internal.h
index 97ec451..f722cee 100644
--- a/fs/fscache/internal.h
+++ b/fs/fscache/internal.h
@@ -136,8 +136,8 @@ extern void fscache_operation_gc(struct work_struct *);
 extern int fscache_wait_for_deferred_lookup(struct fscache_cookie *);
 extern int fscache_wait_for_operation_activation(struct fscache_object *,
 						 struct fscache_operation *,
-						 atomic_t *,
-						 atomic_t *);
+						 atomic_unchecked_t *,
+						 atomic_unchecked_t *);
 extern void fscache_invalidate_writes(struct fscache_cookie *);
 
 /*
@@ -155,102 +155,102 @@ extern void fscache_proc_cleanup(void);
  * stats.c
  */
 #ifdef CONFIG_FSCACHE_STATS
-extern atomic_t fscache_n_ops_processed[FSCACHE_MAX_THREADS];
-extern atomic_t fscache_n_objs_processed[FSCACHE_MAX_THREADS];
+extern atomic_unchecked_t fscache_n_ops_processed[FSCACHE_MAX_THREADS];
+extern atomic_unchecked_t fscache_n_objs_processed[FSCACHE_MAX_THREADS];
 
-extern atomic_t fscache_n_op_pend;
-extern atomic_t fscache_n_op_run;
-extern atomic_t fscache_n_op_enqueue;
-extern atomic_t fscache_n_op_deferred_release;
-extern atomic_t fscache_n_op_initialised;
-extern atomic_t fscache_n_op_release;
-extern atomic_t fscache_n_op_gc;
-extern atomic_t fscache_n_op_cancelled;
-extern atomic_t fscache_n_op_rejected;
+extern atomic_unchecked_t fscache_n_op_pend;
+extern atomic_unchecked_t fscache_n_op_run;
+extern atomic_unchecked_t fscache_n_op_enqueue;
+extern atomic_unchecked_t fscache_n_op_deferred_release;
+extern atomic_unchecked_t fscache_n_op_initialised;
+extern atomic_unchecked_t fscache_n_op_release;
+extern atomic_unchecked_t fscache_n_op_gc;
+extern atomic_unchecked_t fscache_n_op_cancelled;
+extern atomic_unchecked_t fscache_n_op_rejected;
 
-extern atomic_t fscache_n_attr_changed;
-extern atomic_t fscache_n_attr_changed_ok;
-extern atomic_t fscache_n_attr_changed_nobufs;
-extern atomic_t fscache_n_attr_changed_nomem;
-extern atomic_t fscache_n_attr_changed_calls;
+extern atomic_unchecked_t fscache_n_attr_changed;
+extern atomic_unchecked_t fscache_n_attr_changed_ok;
+extern atomic_unchecked_t fscache_n_attr_changed_nobufs;
+extern atomic_unchecked_t fscache_n_attr_changed_nomem;
+extern atomic_unchecked_t fscache_n_attr_changed_calls;
 
-extern atomic_t fscache_n_allocs;
-extern atomic_t fscache_n_allocs_ok;
-extern atomic_t fscache_n_allocs_wait;
-extern atomic_t fscache_n_allocs_nobufs;
-extern atomic_t fscache_n_allocs_intr;
-extern atomic_t fscache_n_allocs_object_dead;
-extern atomic_t fscache_n_alloc_ops;
-extern atomic_t fscache_n_alloc_op_waits;
+extern atomic_unchecked_t fscache_n_allocs;
+extern atomic_unchecked_t fscache_n_allocs_ok;
+extern atomic_unchecked_t fscache_n_allocs_wait;
+extern atomic_unchecked_t fscache_n_allocs_nobufs;
+extern atomic_unchecked_t fscache_n_allocs_intr;
+extern atomic_unchecked_t fscache_n_allocs_object_dead;
+extern atomic_unchecked_t fscache_n_alloc_ops;
+extern atomic_unchecked_t fscache_n_alloc_op_waits;
 
-extern atomic_t fscache_n_retrievals;
-extern atomic_t fscache_n_retrievals_ok;
-extern atomic_t fscache_n_retrievals_wait;
-extern atomic_t fscache_n_retrievals_nodata;
-extern atomic_t fscache_n_retrievals_nobufs;
-extern atomic_t fscache_n_retrievals_intr;
-extern atomic_t fscache_n_retrievals_nomem;
-extern atomic_t fscache_n_retrievals_object_dead;
-extern atomic_t fscache_n_retrieval_ops;
-extern atomic_t fscache_n_retrieval_op_waits;
+extern atomic_unchecked_t fscache_n_retrievals;
+extern atomic_unchecked_t fscache_n_retrievals_ok;
+extern atomic_unchecked_t fscache_n_retrievals_wait;
+extern atomic_unchecked_t fscache_n_retrievals_nodata;
+extern atomic_unchecked_t fscache_n_retrievals_nobufs;
+extern atomic_unchecked_t fscache_n_retrievals_intr;
+extern atomic_unchecked_t fscache_n_retrievals_nomem;
+extern atomic_unchecked_t fscache_n_retrievals_object_dead;
+extern atomic_unchecked_t fscache_n_retrieval_ops;
+extern atomic_unchecked_t fscache_n_retrieval_op_waits;
 
-extern atomic_t fscache_n_stores;
-extern atomic_t fscache_n_stores_ok;
-extern atomic_t fscache_n_stores_again;
-extern atomic_t fscache_n_stores_nobufs;
-extern atomic_t fscache_n_stores_oom;
-extern atomic_t fscache_n_store_ops;
-extern atomic_t fscache_n_store_calls;
-extern atomic_t fscache_n_store_pages;
-extern atomic_t fscache_n_store_radix_deletes;
-extern atomic_t fscache_n_store_pages_over_limit;
+extern atomic_unchecked_t fscache_n_stores;
+extern atomic_unchecked_t fscache_n_stores_ok;
+extern atomic_unchecked_t fscache_n_stores_again;
+extern atomic_unchecked_t fscache_n_stores_nobufs;
+extern atomic_unchecked_t fscache_n_stores_oom;
+extern atomic_unchecked_t fscache_n_store_ops;
+extern atomic_unchecked_t fscache_n_store_calls;
+extern atomic_unchecked_t fscache_n_store_pages;
+extern atomic_unchecked_t fscache_n_store_radix_deletes;
+extern atomic_unchecked_t fscache_n_store_pages_over_limit;
 
-extern atomic_t fscache_n_store_vmscan_not_storing;
-extern atomic_t fscache_n_store_vmscan_gone;
-extern atomic_t fscache_n_store_vmscan_busy;
-extern atomic_t fscache_n_store_vmscan_cancelled;
-extern atomic_t fscache_n_store_vmscan_wait;
+extern atomic_unchecked_t fscache_n_store_vmscan_not_storing;
+extern atomic_unchecked_t fscache_n_store_vmscan_gone;
+extern atomic_unchecked_t fscache_n_store_vmscan_busy;
+extern atomic_unchecked_t fscache_n_store_vmscan_cancelled;
+extern atomic_unchecked_t fscache_n_store_vmscan_wait;
 
-extern atomic_t fscache_n_marks;
-extern atomic_t fscache_n_uncaches;
+extern atomic_unchecked_t fscache_n_marks;
+extern atomic_unchecked_t fscache_n_uncaches;
 
-extern atomic_t fscache_n_acquires;
-extern atomic_t fscache_n_acquires_null;
-extern atomic_t fscache_n_acquires_no_cache;
-extern atomic_t fscache_n_acquires_ok;
-extern atomic_t fscache_n_acquires_nobufs;
-extern atomic_t fscache_n_acquires_oom;
+extern atomic_unchecked_t fscache_n_acquires;
+extern atomic_unchecked_t fscache_n_acquires_null;
+extern atomic_unchecked_t fscache_n_acquires_no_cache;
+extern atomic_unchecked_t fscache_n_acquires_ok;
+extern atomic_unchecked_t fscache_n_acquires_nobufs;
+extern atomic_unchecked_t fscache_n_acquires_oom;
 
-extern atomic_t fscache_n_invalidates;
-extern atomic_t fscache_n_invalidates_run;
+extern atomic_unchecked_t fscache_n_invalidates;
+extern atomic_unchecked_t fscache_n_invalidates_run;
 
-extern atomic_t fscache_n_updates;
-extern atomic_t fscache_n_updates_null;
-extern atomic_t fscache_n_updates_run;
+extern atomic_unchecked_t fscache_n_updates;
+extern atomic_unchecked_t fscache_n_updates_null;
+extern atomic_unchecked_t fscache_n_updates_run;
 
-extern atomic_t fscache_n_relinquishes;
-extern atomic_t fscache_n_relinquishes_null;
-extern atomic_t fscache_n_relinquishes_waitcrt;
-extern atomic_t fscache_n_relinquishes_retire;
+extern atomic_unchecked_t fscache_n_relinquishes;
+extern atomic_unchecked_t fscache_n_relinquishes_null;
+extern atomic_unchecked_t fscache_n_relinquishes_waitcrt;
+extern atomic_unchecked_t fscache_n_relinquishes_retire;
 
-extern atomic_t fscache_n_cookie_index;
-extern atomic_t fscache_n_cookie_data;
-extern atomic_t fscache_n_cookie_special;
+extern atomic_unchecked_t fscache_n_cookie_index;
+extern atomic_unchecked_t fscache_n_cookie_data;
+extern atomic_unchecked_t fscache_n_cookie_special;
 
-extern atomic_t fscache_n_object_alloc;
-extern atomic_t fscache_n_object_no_alloc;
-extern atomic_t fscache_n_object_lookups;
-extern atomic_t fscache_n_object_lookups_negative;
-extern atomic_t fscache_n_object_lookups_positive;
-extern atomic_t fscache_n_object_lookups_timed_out;
-extern atomic_t fscache_n_object_created;
-extern atomic_t fscache_n_object_avail;
-extern atomic_t fscache_n_object_dead;
+extern atomic_unchecked_t fscache_n_object_alloc;
+extern atomic_unchecked_t fscache_n_object_no_alloc;
+extern atomic_unchecked_t fscache_n_object_lookups;
+extern atomic_unchecked_t fscache_n_object_lookups_negative;
+extern atomic_unchecked_t fscache_n_object_lookups_positive;
+extern atomic_unchecked_t fscache_n_object_lookups_timed_out;
+extern atomic_unchecked_t fscache_n_object_created;
+extern atomic_unchecked_t fscache_n_object_avail;
+extern atomic_unchecked_t fscache_n_object_dead;
 
-extern atomic_t fscache_n_checkaux_none;
-extern atomic_t fscache_n_checkaux_okay;
-extern atomic_t fscache_n_checkaux_update;
-extern atomic_t fscache_n_checkaux_obsolete;
+extern atomic_unchecked_t fscache_n_checkaux_none;
+extern atomic_unchecked_t fscache_n_checkaux_okay;
+extern atomic_unchecked_t fscache_n_checkaux_update;
+extern atomic_unchecked_t fscache_n_checkaux_obsolete;
 
 extern atomic_t fscache_n_cop_alloc_object;
 extern atomic_t fscache_n_cop_lookup_object;
@@ -280,6 +280,11 @@ static inline void fscache_stat(atomic_t *stat)
 	atomic_inc(stat);
 }
 
+static inline void fscache_stat_unchecked(atomic_unchecked_t *stat)
+{
+	atomic_inc_unchecked(stat);
+}
+
 static inline void fscache_stat_d(atomic_t *stat)
 {
 	atomic_dec(stat);
@@ -292,6 +297,7 @@ extern const struct file_operations fscache_stats_fops;
 
 #define __fscache_stat(stat) (NULL)
 #define fscache_stat(stat) do {} while (0)
+#define fscache_stat_unchecked(stat) do {} while (0)
 #define fscache_stat_d(stat) do {} while (0)
 #endif
 
diff --git a/fs/fscache/object.c b/fs/fscache/object.c
index 9e792e3..6b2affb 100644
--- a/fs/fscache/object.c
+++ b/fs/fscache/object.c
@@ -465,7 +465,7 @@ static const struct fscache_state *fscache_look_up_object(struct fscache_object
 	_debug("LOOKUP \"%s\" in \"%s\"",
 	       cookie->def->name, object->cache->tag->name);
 
-	fscache_stat(&fscache_n_object_lookups);
+	fscache_stat_unchecked(&fscache_n_object_lookups);
 	fscache_stat(&fscache_n_cop_lookup_object);
 	ret = object->cache->ops->lookup_object(object);
 	fscache_stat_d(&fscache_n_cop_lookup_object);
@@ -475,7 +475,7 @@ static const struct fscache_state *fscache_look_up_object(struct fscache_object
 	if (ret == -ETIMEDOUT) {
 		/* probably stuck behind another object, so move this one to
 		 * the back of the queue */
-		fscache_stat(&fscache_n_object_lookups_timed_out);
+		fscache_stat_unchecked(&fscache_n_object_lookups_timed_out);
 		_leave(" [timeout]");
 		return NO_TRANSIT;
 	}
@@ -503,7 +503,7 @@ void fscache_object_lookup_negative(struct fscache_object *object)
 	_enter("{OBJ%x,%s}", object->debug_id, object->state->name);
 
 	if (!test_and_set_bit(FSCACHE_OBJECT_IS_LOOKED_UP, &object->flags)) {
-		fscache_stat(&fscache_n_object_lookups_negative);
+		fscache_stat_unchecked(&fscache_n_object_lookups_negative);
 
 		/* Allow write requests to begin stacking up and read requests to begin
 		 * returning ENODATA.
@@ -538,7 +538,7 @@ void fscache_obtained_object(struct fscache_object *object)
 	/* if we were still looking up, then we must have a positive lookup
 	 * result, in which case there may be data available */
 	if (!test_and_set_bit(FSCACHE_OBJECT_IS_LOOKED_UP, &object->flags)) {
-		fscache_stat(&fscache_n_object_lookups_positive);
+		fscache_stat_unchecked(&fscache_n_object_lookups_positive);
 
 		/* We do (presumably) have data */
 		clear_bit_unlock(FSCACHE_COOKIE_NO_DATA_YET, &cookie->flags);
@@ -550,7 +550,7 @@ void fscache_obtained_object(struct fscache_object *object)
 		clear_bit_unlock(FSCACHE_COOKIE_LOOKING_UP, &cookie->flags);
 		wake_up_bit(&cookie->flags, FSCACHE_COOKIE_LOOKING_UP);
 	} else {
-		fscache_stat(&fscache_n_object_created);
+		fscache_stat_unchecked(&fscache_n_object_created);
 	}
 
 	set_bit(FSCACHE_OBJECT_IS_AVAILABLE, &object->flags);
@@ -586,7 +586,7 @@ static const struct fscache_state *fscache_object_available(struct fscache_objec
 	fscache_stat_d(&fscache_n_cop_lookup_complete);
 
 	fscache_hist(fscache_obj_instantiate_histogram, object->lookup_jif);
-	fscache_stat(&fscache_n_object_avail);
+	fscache_stat_unchecked(&fscache_n_object_avail);
 
 	_leave("");
 	return transit_to(JUMPSTART_DEPS);
@@ -735,7 +735,7 @@ static const struct fscache_state *fscache_drop_object(struct fscache_object *ob
 
 	/* this just shifts the object release to the work processor */
 	fscache_put_object(object);
-	fscache_stat(&fscache_n_object_dead);
+	fscache_stat_unchecked(&fscache_n_object_dead);
 
 	_leave("");
 	return transit_to(OBJECT_DEAD);
@@ -900,7 +900,7 @@ enum fscache_checkaux fscache_check_aux(struct fscache_object *object,
 	enum fscache_checkaux result;
 
 	if (!object->cookie->def->check_aux) {
-		fscache_stat(&fscache_n_checkaux_none);
+		fscache_stat_unchecked(&fscache_n_checkaux_none);
 		return FSCACHE_CHECKAUX_OKAY;
 	}
 
@@ -909,17 +909,17 @@ enum fscache_checkaux fscache_check_aux(struct fscache_object *object,
 	switch (result) {
 		/* entry okay as is */
 	case FSCACHE_CHECKAUX_OKAY:
-		fscache_stat(&fscache_n_checkaux_okay);
+		fscache_stat_unchecked(&fscache_n_checkaux_okay);
 		break;
 
 		/* entry requires update */
 	case FSCACHE_CHECKAUX_NEEDS_UPDATE:
-		fscache_stat(&fscache_n_checkaux_update);
+		fscache_stat_unchecked(&fscache_n_checkaux_update);
 		break;
 
 		/* entry requires deletion */
 	case FSCACHE_CHECKAUX_OBSOLETE:
-		fscache_stat(&fscache_n_checkaux_obsolete);
+		fscache_stat_unchecked(&fscache_n_checkaux_obsolete);
 		break;
 
 	default:
@@ -1007,7 +1007,7 @@ static const struct fscache_state *fscache_invalidate_object(struct fscache_obje
 {
 	const struct fscache_state *s;
 
-	fscache_stat(&fscache_n_invalidates_run);
+	fscache_stat_unchecked(&fscache_n_invalidates_run);
 	fscache_stat(&fscache_n_cop_invalidate_object);
 	s = _fscache_invalidate_object(object, event);
 	fscache_stat_d(&fscache_n_cop_invalidate_object);
@@ -1022,7 +1022,7 @@ static const struct fscache_state *fscache_update_object(struct fscache_object *
 {
 	_enter("{OBJ%x},%d", object->debug_id, event);
 
-	fscache_stat(&fscache_n_updates_run);
+	fscache_stat_unchecked(&fscache_n_updates_run);
 	fscache_stat(&fscache_n_cop_update_object);
 	object->cache->ops->update_object(object);
 	fscache_stat_d(&fscache_n_cop_update_object);
diff --git a/fs/fscache/operation.c b/fs/fscache/operation.c
index de67745..6a3a9b6 100644
--- a/fs/fscache/operation.c
+++ b/fs/fscache/operation.c
@@ -17,7 +17,7 @@
 #include <linux/slab.h>
 #include "internal.h"
 
-atomic_t fscache_op_debug_id;
+atomic_unchecked_t fscache_op_debug_id;
 EXPORT_SYMBOL(fscache_op_debug_id);
 
 static void fscache_operation_dummy_cancel(struct fscache_operation *op)
@@ -40,12 +40,12 @@ void fscache_operation_init(struct fscache_operation *op,
 	INIT_WORK(&op->work, fscache_op_work_func);
 	atomic_set(&op->usage, 1);
 	op->state = FSCACHE_OP_ST_INITIALISED;
-	op->debug_id = atomic_inc_return(&fscache_op_debug_id);
+	op->debug_id = atomic_inc_return_unchecked(&fscache_op_debug_id);
 	op->processor = processor;
 	op->cancel = cancel ?: fscache_operation_dummy_cancel;
 	op->release = release;
 	INIT_LIST_HEAD(&op->pend_link);
-	fscache_stat(&fscache_n_op_initialised);
+	fscache_stat_unchecked(&fscache_n_op_initialised);
 }
 EXPORT_SYMBOL(fscache_operation_init);
 
@@ -68,7 +68,7 @@ void fscache_enqueue_operation(struct fscache_operation *op)
 	ASSERTCMP(atomic_read(&op->usage), >, 0);
 	ASSERTCMP(op->state, ==, FSCACHE_OP_ST_IN_PROGRESS);
 
-	fscache_stat(&fscache_n_op_enqueue);
+	fscache_stat_unchecked(&fscache_n_op_enqueue);
 	switch (op->flags & FSCACHE_OP_TYPE) {
 	case FSCACHE_OP_ASYNC:
 		_debug("queue async");
@@ -101,7 +101,7 @@ static void fscache_run_op(struct fscache_object *object,
 		wake_up_bit(&op->flags, FSCACHE_OP_WAITING);
 	if (op->processor)
 		fscache_enqueue_operation(op);
-	fscache_stat(&fscache_n_op_run);
+	fscache_stat_unchecked(&fscache_n_op_run);
 }
 
 /*
@@ -169,7 +169,7 @@ int fscache_submit_exclusive_op(struct fscache_object *object,
 	op->state = FSCACHE_OP_ST_PENDING;
 	flags = READ_ONCE(object->flags);
 	if (unlikely(!(flags & BIT(FSCACHE_OBJECT_IS_LIVE)))) {
-		fscache_stat(&fscache_n_op_rejected);
+		fscache_stat_unchecked(&fscache_n_op_rejected);
 		op->cancel(op);
 		op->state = FSCACHE_OP_ST_CANCELLED;
 		ret = -ENOBUFS;
@@ -185,11 +185,11 @@ int fscache_submit_exclusive_op(struct fscache_object *object,
 		if (object->n_in_progress > 0) {
 			atomic_inc(&op->usage);
 			list_add_tail(&op->pend_link, &object->pending_ops);
-			fscache_stat(&fscache_n_op_pend);
+			fscache_stat_unchecked(&fscache_n_op_pend);
 		} else if (!list_empty(&object->pending_ops)) {
 			atomic_inc(&op->usage);
 			list_add_tail(&op->pend_link, &object->pending_ops);
-			fscache_stat(&fscache_n_op_pend);
+			fscache_stat_unchecked(&fscache_n_op_pend);
 			fscache_start_operations(object);
 		} else {
 			ASSERTCMP(object->n_in_progress, ==, 0);
@@ -205,7 +205,7 @@ int fscache_submit_exclusive_op(struct fscache_object *object,
 		object->n_exclusive++;	/* reads and writes must wait */
 		atomic_inc(&op->usage);
 		list_add_tail(&op->pend_link, &object->pending_ops);
-		fscache_stat(&fscache_n_op_pend);
+		fscache_stat_unchecked(&fscache_n_op_pend);
 		ret = 0;
 	} else if (flags & BIT(FSCACHE_OBJECT_KILLED_BY_CACHE)) {
 		op->cancel(op);
@@ -254,7 +254,7 @@ int fscache_submit_op(struct fscache_object *object,
 	op->state = FSCACHE_OP_ST_PENDING;
 	flags = READ_ONCE(object->flags);
 	if (unlikely(!(flags & BIT(FSCACHE_OBJECT_IS_LIVE)))) {
-		fscache_stat(&fscache_n_op_rejected);
+		fscache_stat_unchecked(&fscache_n_op_rejected);
 		op->cancel(op);
 		op->state = FSCACHE_OP_ST_CANCELLED;
 		ret = -ENOBUFS;
@@ -269,11 +269,11 @@ int fscache_submit_op(struct fscache_object *object,
 		if (object->n_exclusive > 0) {
 			atomic_inc(&op->usage);
 			list_add_tail(&op->pend_link, &object->pending_ops);
-			fscache_stat(&fscache_n_op_pend);
+			fscache_stat_unchecked(&fscache_n_op_pend);
 		} else if (!list_empty(&object->pending_ops)) {
 			atomic_inc(&op->usage);
 			list_add_tail(&op->pend_link, &object->pending_ops);
-			fscache_stat(&fscache_n_op_pend);
+			fscache_stat_unchecked(&fscache_n_op_pend);
 			fscache_start_operations(object);
 		} else {
 			ASSERTCMP(object->n_exclusive, ==, 0);
@@ -285,7 +285,7 @@ int fscache_submit_op(struct fscache_object *object,
 		object->n_ops++;
 		atomic_inc(&op->usage);
 		list_add_tail(&op->pend_link, &object->pending_ops);
-		fscache_stat(&fscache_n_op_pend);
+		fscache_stat_unchecked(&fscache_n_op_pend);
 		ret = 0;
 	} else if (flags & BIT(FSCACHE_OBJECT_KILLED_BY_CACHE)) {
 		op->cancel(op);
@@ -369,7 +369,7 @@ int fscache_cancel_op(struct fscache_operation *op,
 		list_del_init(&op->pend_link);
 		put = true;
 
-		fscache_stat(&fscache_n_op_cancelled);
+		fscache_stat_unchecked(&fscache_n_op_cancelled);
 		op->cancel(op);
 		op->state = FSCACHE_OP_ST_CANCELLED;
 		if (test_bit(FSCACHE_OP_EXCLUSIVE, &op->flags))
@@ -385,7 +385,7 @@ int fscache_cancel_op(struct fscache_operation *op,
 		if (object->n_in_progress == 0)
 			fscache_start_operations(object);
 
-		fscache_stat(&fscache_n_op_cancelled);
+		fscache_stat_unchecked(&fscache_n_op_cancelled);
 		op->cancel(op);
 		op->state = FSCACHE_OP_ST_CANCELLED;
 		if (test_bit(FSCACHE_OP_EXCLUSIVE, &op->flags))
@@ -416,7 +416,7 @@ void fscache_cancel_all_ops(struct fscache_object *object)
 	while (!list_empty(&object->pending_ops)) {
 		op = list_entry(object->pending_ops.next,
 				struct fscache_operation, pend_link);
-		fscache_stat(&fscache_n_op_cancelled);
+		fscache_stat_unchecked(&fscache_n_op_cancelled);
 		list_del_init(&op->pend_link);
 
 		ASSERTCMP(op->state, ==, FSCACHE_OP_ST_PENDING);
@@ -493,7 +493,7 @@ void fscache_put_operation(struct fscache_operation *op)
 		    op->state != FSCACHE_OP_ST_COMPLETE,
 		    op->state, ==, FSCACHE_OP_ST_CANCELLED);
 
-	fscache_stat(&fscache_n_op_release);
+	fscache_stat_unchecked(&fscache_n_op_release);
 
 	if (op->release) {
 		op->release(op);
@@ -513,7 +513,7 @@ void fscache_put_operation(struct fscache_operation *op)
 		 * lock, and defer it otherwise */
 		if (!spin_trylock(&object->lock)) {
 			_debug("defer put");
-			fscache_stat(&fscache_n_op_deferred_release);
+			fscache_stat_unchecked(&fscache_n_op_deferred_release);
 
 			cache = object->cache;
 			spin_lock(&cache->op_gc_list_lock);
@@ -567,7 +567,7 @@ void fscache_operation_gc(struct work_struct *work)
 
 		_debug("GC DEFERRED REL OBJ%x OP%x",
 		       object->debug_id, op->debug_id);
-		fscache_stat(&fscache_n_op_gc);
+		fscache_stat_unchecked(&fscache_n_op_gc);
 
 		ASSERTCMP(atomic_read(&op->usage), ==, 0);
 		ASSERTCMP(op->state, ==, FSCACHE_OP_ST_DEAD);
diff --git a/fs/fscache/page.c b/fs/fscache/page.c
index 3078b67..0c0e3c6 100644
--- a/fs/fscache/page.c
+++ b/fs/fscache/page.c
@@ -74,7 +74,7 @@ try_again:
 	val = radix_tree_lookup(&cookie->stores, page->index);
 	if (!val) {
 		rcu_read_unlock();
-		fscache_stat(&fscache_n_store_vmscan_not_storing);
+		fscache_stat_unchecked(&fscache_n_store_vmscan_not_storing);
 		__fscache_uncache_page(cookie, page);
 		return true;
 	}
@@ -104,11 +104,11 @@ try_again:
 	spin_unlock(&cookie->stores_lock);
 
 	if (xpage) {
-		fscache_stat(&fscache_n_store_vmscan_cancelled);
-		fscache_stat(&fscache_n_store_radix_deletes);
+		fscache_stat_unchecked(&fscache_n_store_vmscan_cancelled);
+		fscache_stat_unchecked(&fscache_n_store_radix_deletes);
 		ASSERTCMP(xpage, ==, page);
 	} else {
-		fscache_stat(&fscache_n_store_vmscan_gone);
+		fscache_stat_unchecked(&fscache_n_store_vmscan_gone);
 	}
 
 	wake_up_bit(&cookie->flags, 0);
@@ -123,11 +123,11 @@ page_busy:
 	 * sleeping on memory allocation, so we may need to impose a timeout
 	 * too. */
 	if (!(gfp & __GFP_DIRECT_RECLAIM) || !(gfp & __GFP_FS)) {
-		fscache_stat(&fscache_n_store_vmscan_busy);
+		fscache_stat_unchecked(&fscache_n_store_vmscan_busy);
 		return false;
 	}
 
-	fscache_stat(&fscache_n_store_vmscan_wait);
+	fscache_stat_unchecked(&fscache_n_store_vmscan_wait);
 	if (!release_page_wait_timeout(cookie, page))
 		_debug("fscache writeout timeout page: %p{%lx}",
 			page, page->index);
@@ -156,7 +156,7 @@ static void fscache_end_page_write(struct fscache_object *object,
 				     FSCACHE_COOKIE_STORING_TAG);
 		if (!radix_tree_tag_get(&cookie->stores, page->index,
 					FSCACHE_COOKIE_PENDING_TAG)) {
-			fscache_stat(&fscache_n_store_radix_deletes);
+			fscache_stat_unchecked(&fscache_n_store_radix_deletes);
 			xpage = radix_tree_delete(&cookie->stores, page->index);
 		}
 		spin_unlock(&cookie->stores_lock);
@@ -177,7 +177,7 @@ static void fscache_attr_changed_op(struct fscache_operation *op)
 
 	_enter("{OBJ%x OP%x}", object->debug_id, op->debug_id);
 
-	fscache_stat(&fscache_n_attr_changed_calls);
+	fscache_stat_unchecked(&fscache_n_attr_changed_calls);
 
 	if (fscache_object_is_active(object)) {
 		fscache_stat(&fscache_n_cop_attr_changed);
@@ -204,11 +204,11 @@ int __fscache_attr_changed(struct fscache_cookie *cookie)
 
 	ASSERTCMP(cookie->def->type, !=, FSCACHE_COOKIE_TYPE_INDEX);
 
-	fscache_stat(&fscache_n_attr_changed);
+	fscache_stat_unchecked(&fscache_n_attr_changed);
 
 	op = kzalloc(sizeof(*op), GFP_KERNEL);
 	if (!op) {
-		fscache_stat(&fscache_n_attr_changed_nomem);
+		fscache_stat_unchecked(&fscache_n_attr_changed_nomem);
 		_leave(" = -ENOMEM");
 		return -ENOMEM;
 	}
@@ -230,7 +230,7 @@ int __fscache_attr_changed(struct fscache_cookie *cookie)
 	if (fscache_submit_exclusive_op(object, op) < 0)
 		goto nobufs_dec;
 	spin_unlock(&cookie->lock);
-	fscache_stat(&fscache_n_attr_changed_ok);
+	fscache_stat_unchecked(&fscache_n_attr_changed_ok);
 	fscache_put_operation(op);
 	_leave(" = 0");
 	return 0;
@@ -242,7 +242,7 @@ nobufs:
 	fscache_put_operation(op);
 	if (wake_cookie)
 		__fscache_wake_unused_cookie(cookie);
-	fscache_stat(&fscache_n_attr_changed_nobufs);
+	fscache_stat_unchecked(&fscache_n_attr_changed_nobufs);
 	_leave(" = %d", -ENOBUFS);
 	return -ENOBUFS;
 }
@@ -293,7 +293,7 @@ static struct fscache_retrieval *fscache_alloc_retrieval(
 	/* allocate a retrieval operation and attempt to submit it */
 	op = kzalloc(sizeof(*op), GFP_NOIO);
 	if (!op) {
-		fscache_stat(&fscache_n_retrievals_nomem);
+		fscache_stat_unchecked(&fscache_n_retrievals_nomem);
 		return NULL;
 	}
 
@@ -332,12 +332,12 @@ int fscache_wait_for_deferred_lookup(struct fscache_cookie *cookie)
 		return 0;
 	}
 
-	fscache_stat(&fscache_n_retrievals_wait);
+	fscache_stat_unchecked(&fscache_n_retrievals_wait);
 
 	jif = jiffies;
 	if (wait_on_bit(&cookie->flags, FSCACHE_COOKIE_LOOKING_UP,
 			TASK_INTERRUPTIBLE) != 0) {
-		fscache_stat(&fscache_n_retrievals_intr);
+		fscache_stat_unchecked(&fscache_n_retrievals_intr);
 		_leave(" = -ERESTARTSYS");
 		return -ERESTARTSYS;
 	}
@@ -355,8 +355,8 @@ int fscache_wait_for_deferred_lookup(struct fscache_cookie *cookie)
  */
 int fscache_wait_for_operation_activation(struct fscache_object *object,
 					  struct fscache_operation *op,
-					  atomic_t *stat_op_waits,
-					  atomic_t *stat_object_dead)
+					  atomic_unchecked_t *stat_op_waits,
+					  atomic_unchecked_t *stat_object_dead)
 {
 	int ret;
 
@@ -365,7 +365,7 @@ int fscache_wait_for_operation_activation(struct fscache_object *object,
 
 	_debug(">>> WT");
 	if (stat_op_waits)
-		fscache_stat(stat_op_waits);
+		fscache_stat_unchecked(stat_op_waits);
 	if (wait_on_bit(&op->flags, FSCACHE_OP_WAITING,
 			TASK_INTERRUPTIBLE) != 0) {
 		ret = fscache_cancel_op(op, false);
@@ -382,7 +382,7 @@ int fscache_wait_for_operation_activation(struct fscache_object *object,
 check_if_dead:
 	if (op->state == FSCACHE_OP_ST_CANCELLED) {
 		if (stat_object_dead)
-			fscache_stat(stat_object_dead);
+			fscache_stat_unchecked(stat_object_dead);
 		_leave(" = -ENOBUFS [cancelled]");
 		return -ENOBUFS;
 	}
@@ -391,7 +391,7 @@ check_if_dead:
 		enum fscache_operation_state state = op->state;
 		fscache_cancel_op(op, true);
 		if (stat_object_dead)
-			fscache_stat(stat_object_dead);
+			fscache_stat_unchecked(stat_object_dead);
 		_leave(" = -ENOBUFS [obj dead %d]", state);
 		return -ENOBUFS;
 	}
@@ -420,7 +420,7 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie,
 
 	_enter("%p,%p,,,", cookie, page);
 
-	fscache_stat(&fscache_n_retrievals);
+	fscache_stat_unchecked(&fscache_n_retrievals);
 
 	if (hlist_empty(&cookie->backing_objects))
 		goto nobufs;
@@ -462,7 +462,7 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie,
 		goto nobufs_unlock_dec;
 	spin_unlock(&cookie->lock);
 
-	fscache_stat(&fscache_n_retrieval_ops);
+	fscache_stat_unchecked(&fscache_n_retrieval_ops);
 
 	/* we wait for the operation to become active, and then process it
 	 * *here*, in this thread, and not in the thread pool */
@@ -488,15 +488,15 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie,
 
 error:
 	if (ret == -ENOMEM)
-		fscache_stat(&fscache_n_retrievals_nomem);
+		fscache_stat_unchecked(&fscache_n_retrievals_nomem);
 	else if (ret == -ERESTARTSYS)
-		fscache_stat(&fscache_n_retrievals_intr);
+		fscache_stat_unchecked(&fscache_n_retrievals_intr);
 	else if (ret == -ENODATA)
-		fscache_stat(&fscache_n_retrievals_nodata);
+		fscache_stat_unchecked(&fscache_n_retrievals_nodata);
 	else if (ret < 0)
-		fscache_stat(&fscache_n_retrievals_nobufs);
+		fscache_stat_unchecked(&fscache_n_retrievals_nobufs);
 	else
-		fscache_stat(&fscache_n_retrievals_ok);
+		fscache_stat_unchecked(&fscache_n_retrievals_ok);
 
 	fscache_put_retrieval(op);
 	_leave(" = %d", ret);
@@ -511,7 +511,7 @@ nobufs_unlock:
 		__fscache_wake_unused_cookie(cookie);
 	fscache_put_retrieval(op);
 nobufs:
-	fscache_stat(&fscache_n_retrievals_nobufs);
+	fscache_stat_unchecked(&fscache_n_retrievals_nobufs);
 	_leave(" = -ENOBUFS");
 	return -ENOBUFS;
 }
@@ -550,7 +550,7 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie,
 
 	_enter("%p,,%d,,,", cookie, *nr_pages);
 
-	fscache_stat(&fscache_n_retrievals);
+	fscache_stat_unchecked(&fscache_n_retrievals);
 
 	if (hlist_empty(&cookie->backing_objects))
 		goto nobufs;
@@ -588,7 +588,7 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie,
 		goto nobufs_unlock_dec;
 	spin_unlock(&cookie->lock);
 
-	fscache_stat(&fscache_n_retrieval_ops);
+	fscache_stat_unchecked(&fscache_n_retrieval_ops);
 
 	/* we wait for the operation to become active, and then process it
 	 * *here*, in this thread, and not in the thread pool */
@@ -614,15 +614,15 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie,
 
 error:
 	if (ret == -ENOMEM)
-		fscache_stat(&fscache_n_retrievals_nomem);
+		fscache_stat_unchecked(&fscache_n_retrievals_nomem);
 	else if (ret == -ERESTARTSYS)
-		fscache_stat(&fscache_n_retrievals_intr);
+		fscache_stat_unchecked(&fscache_n_retrievals_intr);
 	else if (ret == -ENODATA)
-		fscache_stat(&fscache_n_retrievals_nodata);
+		fscache_stat_unchecked(&fscache_n_retrievals_nodata);
 	else if (ret < 0)
-		fscache_stat(&fscache_n_retrievals_nobufs);
+		fscache_stat_unchecked(&fscache_n_retrievals_nobufs);
 	else
-		fscache_stat(&fscache_n_retrievals_ok);
+		fscache_stat_unchecked(&fscache_n_retrievals_ok);
 
 	fscache_put_retrieval(op);
 	_leave(" = %d", ret);
@@ -637,7 +637,7 @@ nobufs_unlock:
 	if (wake_cookie)
 		__fscache_wake_unused_cookie(cookie);
 nobufs:
-	fscache_stat(&fscache_n_retrievals_nobufs);
+	fscache_stat_unchecked(&fscache_n_retrievals_nobufs);
 	_leave(" = -ENOBUFS");
 	return -ENOBUFS;
 }
@@ -662,7 +662,7 @@ int __fscache_alloc_page(struct fscache_cookie *cookie,
 
 	_enter("%p,%p,,,", cookie, page);
 
-	fscache_stat(&fscache_n_allocs);
+	fscache_stat_unchecked(&fscache_n_allocs);
 
 	if (hlist_empty(&cookie->backing_objects))
 		goto nobufs;
@@ -696,7 +696,7 @@ int __fscache_alloc_page(struct fscache_cookie *cookie,
 		goto nobufs_unlock_dec;
 	spin_unlock(&cookie->lock);
 
-	fscache_stat(&fscache_n_alloc_ops);
+	fscache_stat_unchecked(&fscache_n_alloc_ops);
 
 	ret = fscache_wait_for_operation_activation(
 		object, &op->op,
@@ -712,11 +712,11 @@ int __fscache_alloc_page(struct fscache_cookie *cookie,
 
 error:
 	if (ret == -ERESTARTSYS)
-		fscache_stat(&fscache_n_allocs_intr);
+		fscache_stat_unchecked(&fscache_n_allocs_intr);
 	else if (ret < 0)
-		fscache_stat(&fscache_n_allocs_nobufs);
+		fscache_stat_unchecked(&fscache_n_allocs_nobufs);
 	else
-		fscache_stat(&fscache_n_allocs_ok);
+		fscache_stat_unchecked(&fscache_n_allocs_ok);
 
 	fscache_put_retrieval(op);
 	_leave(" = %d", ret);
@@ -730,7 +730,7 @@ nobufs_unlock:
 	if (wake_cookie)
 		__fscache_wake_unused_cookie(cookie);
 nobufs:
-	fscache_stat(&fscache_n_allocs_nobufs);
+	fscache_stat_unchecked(&fscache_n_allocs_nobufs);
 	_leave(" = -ENOBUFS");
 	return -ENOBUFS;
 }
@@ -806,7 +806,7 @@ static void fscache_write_op(struct fscache_operation *_op)
 
 	spin_lock(&cookie->stores_lock);
 
-	fscache_stat(&fscache_n_store_calls);
+	fscache_stat_unchecked(&fscache_n_store_calls);
 
 	/* find a page to store */
 	page = NULL;
@@ -817,7 +817,7 @@ static void fscache_write_op(struct fscache_operation *_op)
 	page = results[0];
 	_debug("gang %d [%lx]", n, page->index);
 	if (page->index >= op->store_limit) {
-		fscache_stat(&fscache_n_store_pages_over_limit);
+		fscache_stat_unchecked(&fscache_n_store_pages_over_limit);
 		goto superseded;
 	}
 
@@ -829,7 +829,7 @@ static void fscache_write_op(struct fscache_operation *_op)
 	spin_unlock(&cookie->stores_lock);
 	spin_unlock(&object->lock);
 
-	fscache_stat(&fscache_n_store_pages);
+	fscache_stat_unchecked(&fscache_n_store_pages);
 	fscache_stat(&fscache_n_cop_write_page);
 	ret = object->cache->ops->write_page(op, page);
 	fscache_stat_d(&fscache_n_cop_write_page);
@@ -933,7 +933,7 @@ int __fscache_write_page(struct fscache_cookie *cookie,
 	ASSERTCMP(cookie->def->type, !=, FSCACHE_COOKIE_TYPE_INDEX);
 	ASSERT(PageFsCache(page));
 
-	fscache_stat(&fscache_n_stores);
+	fscache_stat_unchecked(&fscache_n_stores);
 
 	if (test_bit(FSCACHE_COOKIE_INVALIDATING, &cookie->flags)) {
 		_leave(" = -ENOBUFS [invalidating]");
@@ -992,7 +992,7 @@ int __fscache_write_page(struct fscache_cookie *cookie,
 	spin_unlock(&cookie->stores_lock);
 	spin_unlock(&object->lock);
 
-	op->op.debug_id	= atomic_inc_return(&fscache_op_debug_id);
+	op->op.debug_id	= atomic_inc_return_unchecked(&fscache_op_debug_id);
 	op->store_limit = object->store_limit;
 
 	__fscache_use_cookie(cookie);
@@ -1001,8 +1001,8 @@ int __fscache_write_page(struct fscache_cookie *cookie,
 
 	spin_unlock(&cookie->lock);
 	radix_tree_preload_end();
-	fscache_stat(&fscache_n_store_ops);
-	fscache_stat(&fscache_n_stores_ok);
+	fscache_stat_unchecked(&fscache_n_store_ops);
+	fscache_stat_unchecked(&fscache_n_stores_ok);
 
 	/* the work queue now carries its own ref on the object */
 	fscache_put_operation(&op->op);
@@ -1010,14 +1010,14 @@ int __fscache_write_page(struct fscache_cookie *cookie,
 	return 0;
 
 already_queued:
-	fscache_stat(&fscache_n_stores_again);
+	fscache_stat_unchecked(&fscache_n_stores_again);
 already_pending:
 	spin_unlock(&cookie->stores_lock);
 	spin_unlock(&object->lock);
 	spin_unlock(&cookie->lock);
 	radix_tree_preload_end();
 	fscache_put_operation(&op->op);
-	fscache_stat(&fscache_n_stores_ok);
+	fscache_stat_unchecked(&fscache_n_stores_ok);
 	_leave(" = 0");
 	return 0;
 
@@ -1039,14 +1039,14 @@ nobufs:
 	fscache_put_operation(&op->op);
 	if (wake_cookie)
 		__fscache_wake_unused_cookie(cookie);
-	fscache_stat(&fscache_n_stores_nobufs);
+	fscache_stat_unchecked(&fscache_n_stores_nobufs);
 	_leave(" = -ENOBUFS");
 	return -ENOBUFS;
 
 nomem_free:
 	fscache_put_operation(&op->op);
 nomem:
-	fscache_stat(&fscache_n_stores_oom);
+	fscache_stat_unchecked(&fscache_n_stores_oom);
 	_leave(" = -ENOMEM");
 	return -ENOMEM;
 }
@@ -1064,7 +1064,7 @@ void __fscache_uncache_page(struct fscache_cookie *cookie, struct page *page)
 	ASSERTCMP(cookie->def->type, !=, FSCACHE_COOKIE_TYPE_INDEX);
 	ASSERTCMP(page, !=, NULL);
 
-	fscache_stat(&fscache_n_uncaches);
+	fscache_stat_unchecked(&fscache_n_uncaches);
 
 	/* cache withdrawal may beat us to it */
 	if (!PageFsCache(page))
@@ -1115,7 +1115,7 @@ void fscache_mark_page_cached(struct fscache_retrieval *op, struct page *page)
 	struct fscache_cookie *cookie = op->op.object->cookie;
 
 #ifdef CONFIG_FSCACHE_STATS
-	atomic_inc(&fscache_n_marks);
+	atomic_inc_unchecked(&fscache_n_marks);
 #endif
 
 	_debug("- mark %p{%lx}", page, page->index);
diff --git a/fs/fscache/stats.c b/fs/fscache/stats.c
index 7cfa0aa..d5ef97b7 100644
--- a/fs/fscache/stats.c
+++ b/fs/fscache/stats.c
@@ -18,100 +18,100 @@
 /*
  * operation counters
  */
-atomic_t fscache_n_op_pend;
-atomic_t fscache_n_op_run;
-atomic_t fscache_n_op_enqueue;
-atomic_t fscache_n_op_requeue;
-atomic_t fscache_n_op_deferred_release;
-atomic_t fscache_n_op_initialised;
-atomic_t fscache_n_op_release;
-atomic_t fscache_n_op_gc;
-atomic_t fscache_n_op_cancelled;
-atomic_t fscache_n_op_rejected;
+atomic_unchecked_t fscache_n_op_pend;
+atomic_unchecked_t fscache_n_op_run;
+atomic_unchecked_t fscache_n_op_enqueue;
+atomic_unchecked_t fscache_n_op_requeue;
+atomic_unchecked_t fscache_n_op_deferred_release;
+atomic_unchecked_t fscache_n_op_initialised;
+atomic_unchecked_t fscache_n_op_release;
+atomic_unchecked_t fscache_n_op_gc;
+atomic_unchecked_t fscache_n_op_cancelled;
+atomic_unchecked_t fscache_n_op_rejected;
 
-atomic_t fscache_n_attr_changed;
-atomic_t fscache_n_attr_changed_ok;
-atomic_t fscache_n_attr_changed_nobufs;
-atomic_t fscache_n_attr_changed_nomem;
-atomic_t fscache_n_attr_changed_calls;
+atomic_unchecked_t fscache_n_attr_changed;
+atomic_unchecked_t fscache_n_attr_changed_ok;
+atomic_unchecked_t fscache_n_attr_changed_nobufs;
+atomic_unchecked_t fscache_n_attr_changed_nomem;
+atomic_unchecked_t fscache_n_attr_changed_calls;
 
-atomic_t fscache_n_allocs;
-atomic_t fscache_n_allocs_ok;
-atomic_t fscache_n_allocs_wait;
-atomic_t fscache_n_allocs_nobufs;
-atomic_t fscache_n_allocs_intr;
-atomic_t fscache_n_allocs_object_dead;
-atomic_t fscache_n_alloc_ops;
-atomic_t fscache_n_alloc_op_waits;
+atomic_unchecked_t fscache_n_allocs;
+atomic_unchecked_t fscache_n_allocs_ok;
+atomic_unchecked_t fscache_n_allocs_wait;
+atomic_unchecked_t fscache_n_allocs_nobufs;
+atomic_unchecked_t fscache_n_allocs_intr;
+atomic_unchecked_t fscache_n_allocs_object_dead;
+atomic_unchecked_t fscache_n_alloc_ops;
+atomic_unchecked_t fscache_n_alloc_op_waits;
 
-atomic_t fscache_n_retrievals;
-atomic_t fscache_n_retrievals_ok;
-atomic_t fscache_n_retrievals_wait;
-atomic_t fscache_n_retrievals_nodata;
-atomic_t fscache_n_retrievals_nobufs;
-atomic_t fscache_n_retrievals_intr;
-atomic_t fscache_n_retrievals_nomem;
-atomic_t fscache_n_retrievals_object_dead;
-atomic_t fscache_n_retrieval_ops;
-atomic_t fscache_n_retrieval_op_waits;
+atomic_unchecked_t fscache_n_retrievals;
+atomic_unchecked_t fscache_n_retrievals_ok;
+atomic_unchecked_t fscache_n_retrievals_wait;
+atomic_unchecked_t fscache_n_retrievals_nodata;
+atomic_unchecked_t fscache_n_retrievals_nobufs;
+atomic_unchecked_t fscache_n_retrievals_intr;
+atomic_unchecked_t fscache_n_retrievals_nomem;
+atomic_unchecked_t fscache_n_retrievals_object_dead;
+atomic_unchecked_t fscache_n_retrieval_ops;
+atomic_unchecked_t fscache_n_retrieval_op_waits;
 
-atomic_t fscache_n_stores;
-atomic_t fscache_n_stores_ok;
-atomic_t fscache_n_stores_again;
-atomic_t fscache_n_stores_nobufs;
-atomic_t fscache_n_stores_oom;
-atomic_t fscache_n_store_ops;
-atomic_t fscache_n_store_calls;
-atomic_t fscache_n_store_pages;
-atomic_t fscache_n_store_radix_deletes;
-atomic_t fscache_n_store_pages_over_limit;
+atomic_unchecked_t fscache_n_stores;
+atomic_unchecked_t fscache_n_stores_ok;
+atomic_unchecked_t fscache_n_stores_again;
+atomic_unchecked_t fscache_n_stores_nobufs;
+atomic_unchecked_t fscache_n_stores_oom;
+atomic_unchecked_t fscache_n_store_ops;
+atomic_unchecked_t fscache_n_store_calls;
+atomic_unchecked_t fscache_n_store_pages;
+atomic_unchecked_t fscache_n_store_radix_deletes;
+atomic_unchecked_t fscache_n_store_pages_over_limit;
 
-atomic_t fscache_n_store_vmscan_not_storing;
-atomic_t fscache_n_store_vmscan_gone;
-atomic_t fscache_n_store_vmscan_busy;
-atomic_t fscache_n_store_vmscan_cancelled;
-atomic_t fscache_n_store_vmscan_wait;
+atomic_unchecked_t fscache_n_store_vmscan_not_storing;
+atomic_unchecked_t fscache_n_store_vmscan_gone;
+atomic_unchecked_t fscache_n_store_vmscan_busy;
+atomic_unchecked_t fscache_n_store_vmscan_cancelled;
+atomic_unchecked_t fscache_n_store_vmscan_wait;
 
-atomic_t fscache_n_marks;
-atomic_t fscache_n_uncaches;
+atomic_unchecked_t fscache_n_marks;
+atomic_unchecked_t fscache_n_uncaches;
 
-atomic_t fscache_n_acquires;
-atomic_t fscache_n_acquires_null;
-atomic_t fscache_n_acquires_no_cache;
-atomic_t fscache_n_acquires_ok;
-atomic_t fscache_n_acquires_nobufs;
-atomic_t fscache_n_acquires_oom;
+atomic_unchecked_t fscache_n_acquires;
+atomic_unchecked_t fscache_n_acquires_null;
+atomic_unchecked_t fscache_n_acquires_no_cache;
+atomic_unchecked_t fscache_n_acquires_ok;
+atomic_unchecked_t fscache_n_acquires_nobufs;
+atomic_unchecked_t fscache_n_acquires_oom;
 
-atomic_t fscache_n_invalidates;
-atomic_t fscache_n_invalidates_run;
+atomic_unchecked_t fscache_n_invalidates;
+atomic_unchecked_t fscache_n_invalidates_run;
 
-atomic_t fscache_n_updates;
-atomic_t fscache_n_updates_null;
-atomic_t fscache_n_updates_run;
+atomic_unchecked_t fscache_n_updates;
+atomic_unchecked_t fscache_n_updates_null;
+atomic_unchecked_t fscache_n_updates_run;
 
-atomic_t fscache_n_relinquishes;
-atomic_t fscache_n_relinquishes_null;
-atomic_t fscache_n_relinquishes_waitcrt;
-atomic_t fscache_n_relinquishes_retire;
+atomic_unchecked_t fscache_n_relinquishes;
+atomic_unchecked_t fscache_n_relinquishes_null;
+atomic_unchecked_t fscache_n_relinquishes_waitcrt;
+atomic_unchecked_t fscache_n_relinquishes_retire;
 
-atomic_t fscache_n_cookie_index;
-atomic_t fscache_n_cookie_data;
-atomic_t fscache_n_cookie_special;
+atomic_unchecked_t fscache_n_cookie_index;
+atomic_unchecked_t fscache_n_cookie_data;
+atomic_unchecked_t fscache_n_cookie_special;
 
-atomic_t fscache_n_object_alloc;
-atomic_t fscache_n_object_no_alloc;
-atomic_t fscache_n_object_lookups;
-atomic_t fscache_n_object_lookups_negative;
-atomic_t fscache_n_object_lookups_positive;
-atomic_t fscache_n_object_lookups_timed_out;
-atomic_t fscache_n_object_created;
-atomic_t fscache_n_object_avail;
-atomic_t fscache_n_object_dead;
+atomic_unchecked_t fscache_n_object_alloc;
+atomic_unchecked_t fscache_n_object_no_alloc;
+atomic_unchecked_t fscache_n_object_lookups;
+atomic_unchecked_t fscache_n_object_lookups_negative;
+atomic_unchecked_t fscache_n_object_lookups_positive;
+atomic_unchecked_t fscache_n_object_lookups_timed_out;
+atomic_unchecked_t fscache_n_object_created;
+atomic_unchecked_t fscache_n_object_avail;
+atomic_unchecked_t fscache_n_object_dead;
 
-atomic_t fscache_n_checkaux_none;
-atomic_t fscache_n_checkaux_okay;
-atomic_t fscache_n_checkaux_update;
-atomic_t fscache_n_checkaux_obsolete;
+atomic_unchecked_t fscache_n_checkaux_none;
+atomic_unchecked_t fscache_n_checkaux_okay;
+atomic_unchecked_t fscache_n_checkaux_update;
+atomic_unchecked_t fscache_n_checkaux_obsolete;
 
 atomic_t fscache_n_cop_alloc_object;
 atomic_t fscache_n_cop_lookup_object;
@@ -144,119 +144,119 @@ static int fscache_stats_show(struct seq_file *m, void *v)
 	seq_puts(m, "FS-Cache statistics\n");
 
 	seq_printf(m, "Cookies: idx=%u dat=%u spc=%u\n",
-		   atomic_read(&fscache_n_cookie_index),
-		   atomic_read(&fscache_n_cookie_data),
-		   atomic_read(&fscache_n_cookie_special));
+		   atomic_read_unchecked(&fscache_n_cookie_index),
+		   atomic_read_unchecked(&fscache_n_cookie_data),
+		   atomic_read_unchecked(&fscache_n_cookie_special));
 
 	seq_printf(m, "Objects: alc=%u nal=%u avl=%u ded=%u\n",
-		   atomic_read(&fscache_n_object_alloc),
-		   atomic_read(&fscache_n_object_no_alloc),
-		   atomic_read(&fscache_n_object_avail),
-		   atomic_read(&fscache_n_object_dead));
+		   atomic_read_unchecked(&fscache_n_object_alloc),
+		   atomic_read_unchecked(&fscache_n_object_no_alloc),
+		   atomic_read_unchecked(&fscache_n_object_avail),
+		   atomic_read_unchecked(&fscache_n_object_dead));
 	seq_printf(m, "ChkAux : non=%u ok=%u upd=%u obs=%u\n",
-		   atomic_read(&fscache_n_checkaux_none),
-		   atomic_read(&fscache_n_checkaux_okay),
-		   atomic_read(&fscache_n_checkaux_update),
-		   atomic_read(&fscache_n_checkaux_obsolete));
+		   atomic_read_unchecked(&fscache_n_checkaux_none),
+		   atomic_read_unchecked(&fscache_n_checkaux_okay),
+		   atomic_read_unchecked(&fscache_n_checkaux_update),
+		   atomic_read_unchecked(&fscache_n_checkaux_obsolete));
 
 	seq_printf(m, "Pages  : mrk=%u unc=%u\n",
-		   atomic_read(&fscache_n_marks),
-		   atomic_read(&fscache_n_uncaches));
+		   atomic_read_unchecked(&fscache_n_marks),
+		   atomic_read_unchecked(&fscache_n_uncaches));
 
 	seq_printf(m, "Acquire: n=%u nul=%u noc=%u ok=%u nbf=%u"
 		   " oom=%u\n",
-		   atomic_read(&fscache_n_acquires),
-		   atomic_read(&fscache_n_acquires_null),
-		   atomic_read(&fscache_n_acquires_no_cache),
-		   atomic_read(&fscache_n_acquires_ok),
-		   atomic_read(&fscache_n_acquires_nobufs),
-		   atomic_read(&fscache_n_acquires_oom));
+		   atomic_read_unchecked(&fscache_n_acquires),
+		   atomic_read_unchecked(&fscache_n_acquires_null),
+		   atomic_read_unchecked(&fscache_n_acquires_no_cache),
+		   atomic_read_unchecked(&fscache_n_acquires_ok),
+		   atomic_read_unchecked(&fscache_n_acquires_nobufs),
+		   atomic_read_unchecked(&fscache_n_acquires_oom));
 
 	seq_printf(m, "Lookups: n=%u neg=%u pos=%u crt=%u tmo=%u\n",
-		   atomic_read(&fscache_n_object_lookups),
-		   atomic_read(&fscache_n_object_lookups_negative),
-		   atomic_read(&fscache_n_object_lookups_positive),
-		   atomic_read(&fscache_n_object_created),
-		   atomic_read(&fscache_n_object_lookups_timed_out));
+		   atomic_read_unchecked(&fscache_n_object_lookups),
+		   atomic_read_unchecked(&fscache_n_object_lookups_negative),
+		   atomic_read_unchecked(&fscache_n_object_lookups_positive),
+		   atomic_read_unchecked(&fscache_n_object_created),
+		   atomic_read_unchecked(&fscache_n_object_lookups_timed_out));
 
 	seq_printf(m, "Invals : n=%u run=%u\n",
-		   atomic_read(&fscache_n_invalidates),
-		   atomic_read(&fscache_n_invalidates_run));
+		   atomic_read_unchecked(&fscache_n_invalidates),
+		   atomic_read_unchecked(&fscache_n_invalidates_run));
 
 	seq_printf(m, "Updates: n=%u nul=%u run=%u\n",
-		   atomic_read(&fscache_n_updates),
-		   atomic_read(&fscache_n_updates_null),
-		   atomic_read(&fscache_n_updates_run));
+		   atomic_read_unchecked(&fscache_n_updates),
+		   atomic_read_unchecked(&fscache_n_updates_null),
+		   atomic_read_unchecked(&fscache_n_updates_run));
 
 	seq_printf(m, "Relinqs: n=%u nul=%u wcr=%u rtr=%u\n",
-		   atomic_read(&fscache_n_relinquishes),
-		   atomic_read(&fscache_n_relinquishes_null),
-		   atomic_read(&fscache_n_relinquishes_waitcrt),
-		   atomic_read(&fscache_n_relinquishes_retire));
+		   atomic_read_unchecked(&fscache_n_relinquishes),
+		   atomic_read_unchecked(&fscache_n_relinquishes_null),
+		   atomic_read_unchecked(&fscache_n_relinquishes_waitcrt),
+		   atomic_read_unchecked(&fscache_n_relinquishes_retire));
 
 	seq_printf(m, "AttrChg: n=%u ok=%u nbf=%u oom=%u run=%u\n",
-		   atomic_read(&fscache_n_attr_changed),
-		   atomic_read(&fscache_n_attr_changed_ok),
-		   atomic_read(&fscache_n_attr_changed_nobufs),
-		   atomic_read(&fscache_n_attr_changed_nomem),
-		   atomic_read(&fscache_n_attr_changed_calls));
+		   atomic_read_unchecked(&fscache_n_attr_changed),
+		   atomic_read_unchecked(&fscache_n_attr_changed_ok),
+		   atomic_read_unchecked(&fscache_n_attr_changed_nobufs),
+		   atomic_read_unchecked(&fscache_n_attr_changed_nomem),
+		   atomic_read_unchecked(&fscache_n_attr_changed_calls));
 
 	seq_printf(m, "Allocs : n=%u ok=%u wt=%u nbf=%u int=%u\n",
-		   atomic_read(&fscache_n_allocs),
-		   atomic_read(&fscache_n_allocs_ok),
-		   atomic_read(&fscache_n_allocs_wait),
-		   atomic_read(&fscache_n_allocs_nobufs),
-		   atomic_read(&fscache_n_allocs_intr));
+		   atomic_read_unchecked(&fscache_n_allocs),
+		   atomic_read_unchecked(&fscache_n_allocs_ok),
+		   atomic_read_unchecked(&fscache_n_allocs_wait),
+		   atomic_read_unchecked(&fscache_n_allocs_nobufs),
+		   atomic_read_unchecked(&fscache_n_allocs_intr));
 	seq_printf(m, "Allocs : ops=%u owt=%u abt=%u\n",
-		   atomic_read(&fscache_n_alloc_ops),
-		   atomic_read(&fscache_n_alloc_op_waits),
-		   atomic_read(&fscache_n_allocs_object_dead));
+		   atomic_read_unchecked(&fscache_n_alloc_ops),
+		   atomic_read_unchecked(&fscache_n_alloc_op_waits),
+		   atomic_read_unchecked(&fscache_n_allocs_object_dead));
 
 	seq_printf(m, "Retrvls: n=%u ok=%u wt=%u nod=%u nbf=%u"
 		   " int=%u oom=%u\n",
-		   atomic_read(&fscache_n_retrievals),
-		   atomic_read(&fscache_n_retrievals_ok),
-		   atomic_read(&fscache_n_retrievals_wait),
-		   atomic_read(&fscache_n_retrievals_nodata),
-		   atomic_read(&fscache_n_retrievals_nobufs),
-		   atomic_read(&fscache_n_retrievals_intr),
-		   atomic_read(&fscache_n_retrievals_nomem));
+		   atomic_read_unchecked(&fscache_n_retrievals),
+		   atomic_read_unchecked(&fscache_n_retrievals_ok),
+		   atomic_read_unchecked(&fscache_n_retrievals_wait),
+		   atomic_read_unchecked(&fscache_n_retrievals_nodata),
+		   atomic_read_unchecked(&fscache_n_retrievals_nobufs),
+		   atomic_read_unchecked(&fscache_n_retrievals_intr),
+		   atomic_read_unchecked(&fscache_n_retrievals_nomem));
 	seq_printf(m, "Retrvls: ops=%u owt=%u abt=%u\n",
-		   atomic_read(&fscache_n_retrieval_ops),
-		   atomic_read(&fscache_n_retrieval_op_waits),
-		   atomic_read(&fscache_n_retrievals_object_dead));
+		   atomic_read_unchecked(&fscache_n_retrieval_ops),
+		   atomic_read_unchecked(&fscache_n_retrieval_op_waits),
+		   atomic_read_unchecked(&fscache_n_retrievals_object_dead));
 
 	seq_printf(m, "Stores : n=%u ok=%u agn=%u nbf=%u oom=%u\n",
-		   atomic_read(&fscache_n_stores),
-		   atomic_read(&fscache_n_stores_ok),
-		   atomic_read(&fscache_n_stores_again),
-		   atomic_read(&fscache_n_stores_nobufs),
-		   atomic_read(&fscache_n_stores_oom));
+		   atomic_read_unchecked(&fscache_n_stores),
+		   atomic_read_unchecked(&fscache_n_stores_ok),
+		   atomic_read_unchecked(&fscache_n_stores_again),
+		   atomic_read_unchecked(&fscache_n_stores_nobufs),
+		   atomic_read_unchecked(&fscache_n_stores_oom));
 	seq_printf(m, "Stores : ops=%u run=%u pgs=%u rxd=%u olm=%u\n",
-		   atomic_read(&fscache_n_store_ops),
-		   atomic_read(&fscache_n_store_calls),
-		   atomic_read(&fscache_n_store_pages),
-		   atomic_read(&fscache_n_store_radix_deletes),
-		   atomic_read(&fscache_n_store_pages_over_limit));
+		   atomic_read_unchecked(&fscache_n_store_ops),
+		   atomic_read_unchecked(&fscache_n_store_calls),
+		   atomic_read_unchecked(&fscache_n_store_pages),
+		   atomic_read_unchecked(&fscache_n_store_radix_deletes),
+		   atomic_read_unchecked(&fscache_n_store_pages_over_limit));
 
 	seq_printf(m, "VmScan : nos=%u gon=%u bsy=%u can=%u wt=%u\n",
-		   atomic_read(&fscache_n_store_vmscan_not_storing),
-		   atomic_read(&fscache_n_store_vmscan_gone),
-		   atomic_read(&fscache_n_store_vmscan_busy),
-		   atomic_read(&fscache_n_store_vmscan_cancelled),
-		   atomic_read(&fscache_n_store_vmscan_wait));
+		   atomic_read_unchecked(&fscache_n_store_vmscan_not_storing),
+		   atomic_read_unchecked(&fscache_n_store_vmscan_gone),
+		   atomic_read_unchecked(&fscache_n_store_vmscan_busy),
+		   atomic_read_unchecked(&fscache_n_store_vmscan_cancelled),
+		   atomic_read_unchecked(&fscache_n_store_vmscan_wait));
 
 	seq_printf(m, "Ops    : pend=%u run=%u enq=%u can=%u rej=%u\n",
-		   atomic_read(&fscache_n_op_pend),
-		   atomic_read(&fscache_n_op_run),
-		   atomic_read(&fscache_n_op_enqueue),
-		   atomic_read(&fscache_n_op_cancelled),
-		   atomic_read(&fscache_n_op_rejected));
+		   atomic_read_unchecked(&fscache_n_op_pend),
+		   atomic_read_unchecked(&fscache_n_op_run),
+		   atomic_read_unchecked(&fscache_n_op_enqueue),
+		   atomic_read_unchecked(&fscache_n_op_cancelled),
+		   atomic_read_unchecked(&fscache_n_op_rejected));
 	seq_printf(m, "Ops    : ini=%u dfr=%u rel=%u gc=%u\n",
-		   atomic_read(&fscache_n_op_initialised),
-		   atomic_read(&fscache_n_op_deferred_release),
-		   atomic_read(&fscache_n_op_release),
-		   atomic_read(&fscache_n_op_gc));
+		   atomic_read_unchecked(&fscache_n_op_initialised),
+		   atomic_read_unchecked(&fscache_n_op_deferred_release),
+		   atomic_read_unchecked(&fscache_n_op_release),
+		   atomic_read_unchecked(&fscache_n_op_gc));
 
 	seq_printf(m, "CacheOp: alo=%d luo=%d luc=%d gro=%d\n",
 		   atomic_read(&fscache_n_cop_alloc_object),
diff --git a/fs/fuse/cuse.c b/fs/fuse/cuse.c
index c5b6b71..527e347 100644
--- a/fs/fuse/cuse.c
+++ b/fs/fuse/cuse.c
@@ -611,10 +611,12 @@ static int __init cuse_init(void)
 		INIT_LIST_HEAD(&cuse_conntbl[i]);
 
 	/* inherit and extend fuse_dev_operations */
-	cuse_channel_fops		= fuse_dev_operations;
-	cuse_channel_fops.owner		= THIS_MODULE;
-	cuse_channel_fops.open		= cuse_channel_open;
-	cuse_channel_fops.release	= cuse_channel_release;
+	pax_open_kernel();
+	memcpy((void *)&cuse_channel_fops, &fuse_dev_operations, sizeof(fuse_dev_operations));
+	const_cast(cuse_channel_fops.owner)	= THIS_MODULE;
+	const_cast(cuse_channel_fops.open)	= cuse_channel_open;
+	const_cast(cuse_channel_fops.release)	= cuse_channel_release;
+	pax_close_kernel();
 
 	cuse_class = class_create(THIS_MODULE, "cuse");
 	if (IS_ERR(cuse_class))
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index cbece12..9b01171 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -1390,7 +1390,7 @@ static ssize_t fuse_dev_splice_read(struct file *in, loff_t *ppos,
 	ret = 0;
 	pipe_lock(pipe);
 
-	if (!pipe->readers) {
+	if (!atomic_read(&pipe->readers)) {
 		send_sig(SIGPIPE, current, 0);
 		if (!ret)
 			ret = -EPIPE;
@@ -1419,7 +1419,7 @@ static ssize_t fuse_dev_splice_read(struct file *in, loff_t *ppos,
 		page_nr++;
 		ret += buf->len;
 
-		if (pipe->files)
+		if (atomic_read(&pipe->files))
 			do_wakeup = 1;
 	}
 
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index dcad5e2..562be95 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -825,9 +825,9 @@ struct fuse_fill_data {
 	unsigned nr_pages;
 };
 
-static int fuse_readpages_fill(void *_data, struct page *page)
+static int fuse_readpages_fill(struct file *_data, struct page *page)
 {
-	struct fuse_fill_data *data = _data;
+	struct fuse_fill_data *data = (struct fuse_fill_data *)_data;
 	struct fuse_req *req = data->req;
 	struct inode *inode = data->inode;
 	struct fuse_conn *fc = get_fuse_conn(inode);
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 1ce6766..16c31cb 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -29,7 +29,7 @@ static struct kmem_cache *fuse_inode_cachep;
 struct list_head fuse_conn_list;
 DEFINE_MUTEX(fuse_mutex);
 
-static int set_global_limit(const char *val, struct kernel_param *kp);
+static int set_global_limit(const char *val, const struct kernel_param *kp);
 
 unsigned max_user_bgreq;
 module_param_call(max_user_bgreq, set_global_limit, param_get_uint,
@@ -814,7 +814,7 @@ static void sanitize_global_limit(unsigned *limit)
 		*limit = (1 << 16) - 1;
 }
 
-static int set_global_limit(const char *val, struct kernel_param *kp)
+static int set_global_limit(const char *val, const struct kernel_param *kp)
 {
 	int rv;
 
diff --git a/fs/gfs2/aops.c b/fs/gfs2/aops.c
index 1bbbee9..d085f3f 100644
--- a/fs/gfs2/aops.c
+++ b/fs/gfs2/aops.c
@@ -492,7 +492,7 @@ static int stuffed_readpage(struct gfs2_inode *ip, struct page *page)
  *
  */
 
-static int __gfs2_readpage(void *file, struct page *page)
+static int __gfs2_readpage(struct file *file, struct page *page)
 {
 	struct gfs2_inode *ip = GFS2_I(page->mapping->host);
 	struct gfs2_sbd *sdp = GFS2_SB(page->mapping->host);
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index 208efc7..a6de70f 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -775,7 +775,7 @@ static void calc_max_reserv(struct gfs2_inode *ip, loff_t *len,
 {
 	loff_t max = *len;
 	const struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
-	unsigned int tmp, max_data = max_blocks - 3 * (sdp->sd_max_height - 1);
+	unsigned int tmp, max_data = max_blocks - 3 * sdp->sd_max_height + 3;
 
 	for (tmp = max_data; tmp > sdp->sd_diptrs;) {
 		tmp = DIV_ROUND_UP(tmp, sdp->sd_inptrs);
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index 6539131..09e2dce 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -324,9 +324,9 @@ static void state_change(struct gfs2_glock *gl, unsigned int new_state)
 	if (held1 != held2) {
 		GLOCK_BUG_ON(gl, __lockref_is_dead(&gl->gl_lockref));
 		if (held2)
-			gl->gl_lockref.count++;
+			__lockref_inc(&gl->gl_lockref);
 		else
-			gl->gl_lockref.count--;
+			__lockref_dec(&gl->gl_lockref);
 	}
 	if (held1 && held2 && list_empty(&gl->gl_holders))
 		clear_bit(GLF_QUEUED, &gl->gl_flags);
@@ -553,9 +553,9 @@ out:
 out_sched:
 	clear_bit(GLF_LOCK, &gl->gl_flags);
 	smp_mb__after_atomic();
-	gl->gl_lockref.count++;
+	__lockref_inc(&gl->gl_lockref);
 	if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
-		gl->gl_lockref.count--;
+		__lockref_dec(&gl->gl_lockref);
 	return;
 
 out_unlock:
@@ -690,7 +690,7 @@ int gfs2_glock_get(struct gfs2_sbd *sdp, u64 number,
 	gl->gl_node.next = NULL;
 	gl->gl_flags = 0;
 	gl->gl_name = name;
-	gl->gl_lockref.count = 1;
+	__lockref_set(&gl->gl_lockref, 1);
 	gl->gl_state = LM_ST_UNLOCKED;
 	gl->gl_target = LM_ST_UNLOCKED;
 	gl->gl_demote_state = LM_ST_EXCLUSIVE;
@@ -979,9 +979,9 @@ int gfs2_glock_nq(struct gfs2_holder *gh)
 	if (unlikely((LM_FLAG_NOEXP & gh->gh_flags) &&
 		     test_and_clear_bit(GLF_FROZEN, &gl->gl_flags))) {
 		set_bit(GLF_REPLY_PENDING, &gl->gl_flags);
-		gl->gl_lockref.count++;
+		__lockref_inc(&gl->gl_lockref);
 		if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
-			gl->gl_lockref.count--;
+			__lockref_dec(&gl->gl_lockref);
 	}
 	run_queue(gl, 1);
 	spin_unlock(&gl->gl_lockref.lock);
@@ -1286,7 +1286,7 @@ void gfs2_glock_complete(struct gfs2_glock *gl, int ret)
 		}
 	}
 
-	gl->gl_lockref.count++;
+	__lockref_inc(&gl->gl_lockref);
 	set_bit(GLF_REPLY_PENDING, &gl->gl_flags);
 	spin_unlock(&gl->gl_lockref.lock);
 
@@ -1345,12 +1345,12 @@ add_back_to_lru:
 			goto add_back_to_lru;
 		}
 		clear_bit(GLF_LRU, &gl->gl_flags);
-		gl->gl_lockref.count++;
+		__lockref_inc(&gl->gl_lockref);
 		if (demote_ok(gl))
 			handle_callback(gl, LM_ST_UNLOCKED, 0, false);
 		WARN_ON(!test_and_clear_bit(GLF_LOCK, &gl->gl_flags));
 		if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
-			gl->gl_lockref.count--;
+			__lockref_dec(&gl->gl_lockref);
 		spin_unlock(&gl->gl_lockref.lock);
 		cond_resched_lock(&lru_lock);
 	}
@@ -1677,7 +1677,7 @@ void gfs2_dump_glock(struct seq_file *seq, const struct gfs2_glock *gl)
 		  state2str(gl->gl_demote_state), dtime,
 		  atomic_read(&gl->gl_ail_count),
 		  atomic_read(&gl->gl_revokes),
-		  (int)gl->gl_lockref.count, gl->gl_hold_time);
+		  __lockref_read(&gl->gl_lockref), gl->gl_hold_time);
 
 	list_for_each_entry(gh, &gl->gl_holders, gh_list)
 		dump_holder(seq, gh);
diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c
index 437fd73..4f85148 100644
--- a/fs/gfs2/glops.c
+++ b/fs/gfs2/glops.c
@@ -556,9 +556,9 @@ static void iopen_go_callback(struct gfs2_glock *gl, bool remote)
 
 	if (gl->gl_demote_state == LM_ST_UNLOCKED &&
 	    gl->gl_state == LM_ST_SHARED && ip) {
-		gl->gl_lockref.count++;
+		__lockref_inc(&gl->gl_lockref);
 		if (queue_work(gfs2_delete_workqueue, &gl->gl_delete) == 0)
-			gl->gl_lockref.count--;
+			__lockref_dec(&gl->gl_lockref);
 	}
 }
 
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index ce7d69a..0d6bf38 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -154,7 +154,7 @@ static enum lru_status gfs2_qd_isolate(struct list_head *item,
 	if (!spin_trylock(&qd->qd_lockref.lock))
 		return LRU_SKIP;
 
-	if (qd->qd_lockref.count == 0) {
+	if (__lockref_read(&qd->qd_lockref) == 0) {
 		lockref_mark_dead(&qd->qd_lockref);
 		list_lru_isolate_move(lru, &qd->qd_lru, dispose);
 	}
@@ -221,7 +221,7 @@ static struct gfs2_quota_data *qd_alloc(unsigned hash, struct gfs2_sbd *sdp, str
 		return NULL;
 
 	qd->qd_sbd = sdp;
-	qd->qd_lockref.count = 1;
+	__lockref_set(&qd->qd_lockref, 1);
 	spin_lock_init(&qd->qd_lockref.lock);
 	qd->qd_id = qid;
 	qd->qd_slot = -1;
@@ -312,7 +312,7 @@ static void qd_put(struct gfs2_quota_data *qd)
 	if (lockref_put_or_lock(&qd->qd_lockref))
 		return;
 
-	qd->qd_lockref.count = 0;
+	__lockref_set(&qd->qd_lockref, 0);
 	list_lru_add(&gfs2_qd_lru, &qd->qd_lru);
 	spin_unlock(&qd->qd_lockref.lock);
 
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 4ea71eb..19effa7 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -174,6 +174,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
 	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 	struct hstate *h = hstate_file(file);
+	unsigned long offset = gr_rand_threadstack_offset(mm, file, flags);
 	struct vm_unmapped_area_info info;
 
 	if (len & ~huge_page_mask(h))
@@ -187,17 +188,26 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
 		return addr;
 	}
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (addr) {
 		addr = ALIGN(addr, huge_page_size(h));
 		vma = find_vma(mm, addr);
-		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
 			return addr;
 	}
 
 	info.flags = 0;
 	info.length = len;
 	info.low_limit = TASK_UNMAPPED_BASE;
+
+#ifdef CONFIG_PAX_RANDMMAP
+	if (mm->pax_flags & MF_PAX_RANDMMAP)
+		info.low_limit += mm->delta_mmap;
+#endif
+
 	info.high_limit = TASK_SIZE;
 	info.align_mask = PAGE_MASK & ~huge_page_mask(h);
 	info.align_offset = 0;
@@ -1212,7 +1222,7 @@ static struct file_system_type hugetlbfs_fs_type = {
 	.kill_sb	= kill_litter_super,
 };
 
-static struct vfsmount *hugetlbfs_vfsmount[HUGE_MAX_HSTATE];
+struct vfsmount *hugetlbfs_vfsmount[HUGE_MAX_HSTATE];
 
 static int can_do_hugetlb_shm(void)
 {
diff --git a/fs/inode.c b/fs/inode.c
index 69b8b52..9b58c2d 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -850,19 +850,19 @@ unsigned int get_next_ino(void)
 	unsigned int *p = &get_cpu_var(last_ino);
 	unsigned int res = *p;
 
+start:
+
 #ifdef CONFIG_SMP
 	if (unlikely((res & (LAST_INO_BATCH-1)) == 0)) {
-		static atomic_t shared_last_ino;
-		int next = atomic_add_return(LAST_INO_BATCH, &shared_last_ino);
+		static atomic_unchecked_t shared_last_ino;
+		int next = atomic_add_return_unchecked(LAST_INO_BATCH, &shared_last_ino);
 
 		res = next - LAST_INO_BATCH;
 	}
 #endif
 
-	res++;
-	/* get_next_ino should not provide a 0 inode number */
-	if (unlikely(!res))
-		res++;
+	if (unlikely(!++res))
+		goto start;	/* never zero */
 	*p = res;
 	put_cpu_var(last_ino);
 	return res;
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index 2ad98d6..00f8858 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -1073,7 +1073,7 @@ restart_loop:
 	 */
 	stats.ts_tid = commit_transaction->t_tid;
 	stats.run.rs_handle_count =
-		atomic_read(&commit_transaction->t_handle_count);
+		atomic_read_unchecked(&commit_transaction->t_handle_count);
 	trace_jbd2_run_stats(journal->j_fs_dev->bd_dev,
 			     commit_transaction->t_tid, &stats.run);
 	stats.ts_requested = (commit_transaction->t_requested) ? 1 : 0;
diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index 67c1038..adcb8e3 100644
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -91,7 +91,7 @@ jbd2_get_transaction(journal_t *journal, transaction_t *transaction)
 	atomic_set(&transaction->t_updates, 0);
 	atomic_set(&transaction->t_outstanding_credits,
 		   atomic_read(&journal->j_reserved_credits));
-	atomic_set(&transaction->t_handle_count, 0);
+	atomic_set_unchecked(&transaction->t_handle_count, 0);
 	INIT_LIST_HEAD(&transaction->t_inode_list);
 	INIT_LIST_HEAD(&transaction->t_private_list);
 
@@ -374,7 +374,7 @@ repeat:
 	handle->h_requested_credits = blocks;
 	handle->h_start_jiffies = jiffies;
 	atomic_inc(&transaction->t_updates);
-	atomic_inc(&transaction->t_handle_count);
+	atomic_inc_unchecked(&transaction->t_handle_count);
 	jbd_debug(4, "Handle %p given %d credits (total %d, free %lu)\n",
 		  handle, blocks,
 		  atomic_read(&transaction->t_outstanding_credits),
diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c
index 4a6cf28..d3a29d3 100644
--- a/fs/jffs2/erase.c
+++ b/fs/jffs2/erase.c
@@ -452,7 +452,8 @@ static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseb
 		struct jffs2_unknown_node marker = {
 			.magic =	cpu_to_je16(JFFS2_MAGIC_BITMASK),
 			.nodetype =	cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER),
-			.totlen =	cpu_to_je32(c->cleanmarker_size)
+			.totlen =	cpu_to_je32(c->cleanmarker_size),
+			.hdr_crc =	cpu_to_je32(0)
 		};
 
 		jffs2_prealloc_raw_node_refs(c, jeb, 1);
diff --git a/fs/jffs2/file.c b/fs/jffs2/file.c
index 0e62dec..2beac6f 100644
--- a/fs/jffs2/file.c
+++ b/fs/jffs2/file.c
@@ -112,8 +112,9 @@ static int jffs2_do_readpage_nolock (struct inode *inode, struct page *pg)
 	return ret;
 }
 
-int jffs2_do_readpage_unlock(struct inode *inode, struct page *pg)
+int jffs2_do_readpage_unlock(struct file *_inode, struct page *pg)
 {
+	struct inode *inode = (struct inode *)_inode;
 	int ret = jffs2_do_readpage_nolock(inode, pg);
 	unlock_page(pg);
 	return ret;
@@ -126,7 +127,7 @@ static int jffs2_readpage (struct file *filp, struct page *pg)
 	int ret;
 
 	mutex_lock(&f->sem);
-	ret = jffs2_do_readpage_unlock(pg->mapping->host, pg);
+	ret = jffs2_do_readpage_unlock((struct file *)pg->mapping->host, pg);
 	mutex_unlock(&f->sem);
 	return ret;
 }
diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c
index ae2ebb2..39becae 100644
--- a/fs/jffs2/fs.c
+++ b/fs/jffs2/fs.c
@@ -686,7 +686,7 @@ unsigned char *jffs2_gc_fetch_page(struct jffs2_sb_info *c,
 	struct page *pg;
 
 	pg = read_cache_page(inode->i_mapping, offset >> PAGE_SHIFT,
-			     (void *)jffs2_do_readpage_unlock, inode);
+			     jffs2_do_readpage_unlock, inode);
 	if (IS_ERR(pg))
 		return (void *)pg;
 
diff --git a/fs/jffs2/os-linux.h b/fs/jffs2/os-linux.h
index 824e61e..2d686a6 100644
--- a/fs/jffs2/os-linux.h
+++ b/fs/jffs2/os-linux.h
@@ -154,7 +154,7 @@ extern const struct file_operations jffs2_file_operations;
 extern const struct inode_operations jffs2_file_inode_operations;
 extern const struct address_space_operations jffs2_file_address_operations;
 int jffs2_fsync(struct file *, loff_t, loff_t, int);
-int jffs2_do_readpage_unlock (struct inode *inode, struct page *pg);
+int jffs2_do_readpage_unlock (struct file *_inode, struct page *pg);
 
 /* ioctl.c */
 long jffs2_ioctl(struct file *, unsigned int, unsigned long);
diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c
index b25d28a..7934a69 100644
--- a/fs/jffs2/wbuf.c
+++ b/fs/jffs2/wbuf.c
@@ -1023,7 +1023,8 @@ static const struct jffs2_unknown_node oob_cleanmarker =
 {
 	.magic = constant_cpu_to_je16(JFFS2_MAGIC_BITMASK),
 	.nodetype = constant_cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER),
-	.totlen = constant_cpu_to_je32(8)
+	.totlen = constant_cpu_to_je32(8),
+	.hdr_crc = constant_cpu_to_je32(0)
 };
 
 /*
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index 78d5991..73ba3e4 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -898,7 +898,7 @@ static int __init init_jfs_fs(void)
 
 	jfs_inode_cachep =
 	    kmem_cache_create("jfs_ip", sizeof(struct jfs_inode_info), 0,
-			    SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD|SLAB_ACCOUNT,
+			    SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD|SLAB_ACCOUNT|SLAB_USERCOPY,
 			    init_once);
 	if (jfs_inode_cachep == NULL)
 		return -ENOMEM;
diff --git a/fs/kernfs/dir.c b/fs/kernfs/dir.c
index 37f9678..e2528dc 100644
--- a/fs/kernfs/dir.c
+++ b/fs/kernfs/dir.c
@@ -334,7 +334,7 @@ struct kernfs_node *kernfs_get_parent(struct kernfs_node *kn)
  *
  *	Returns 31 bit hash of ns + name (so it fits in an off_t )
  */
-static unsigned int kernfs_name_hash(const char *name, const void *ns)
+static unsigned int kernfs_name_hash(const unsigned char *name, const void *ns)
 {
 	unsigned long hash = init_name_hash();
 	unsigned int len = strlen(name);
@@ -1073,6 +1073,12 @@ static int kernfs_iop_mkdir(struct inode *dir, struct dentry *dentry,
 	ret = scops->mkdir(parent, dentry->d_name.name, mode);
 
 	kernfs_put_active(parent);
+
+	if (!ret) {
+		struct dentry *dentry_ret = kernfs_iop_lookup(dir, dentry, 0);
+		ret = PTR_ERR_OR_ZERO(dentry_ret);
+	}
+
 	return ret;
 }
 
diff --git a/fs/kernfs/file.c b/fs/kernfs/file.c
index 7247252..c73808e 100644
--- a/fs/kernfs/file.c
+++ b/fs/kernfs/file.c
@@ -34,7 +34,7 @@ static DEFINE_MUTEX(kernfs_open_file_mutex);
 
 struct kernfs_open_node {
 	atomic_t		refcnt;
-	atomic_t		event;
+	atomic_unchecked_t	event;
 	wait_queue_head_t	poll;
 	struct list_head	files; /* goes through kernfs_open_file.list */
 };
@@ -163,7 +163,7 @@ static int kernfs_seq_show(struct seq_file *sf, void *v)
 {
 	struct kernfs_open_file *of = sf->private;
 
-	of->event = atomic_read(&of->kn->attr.open->event);
+	of->event = atomic_read_unchecked(&of->kn->attr.open->event);
 
 	return of->kn->attr.ops->seq_show(sf, v);
 }
@@ -207,7 +207,7 @@ static ssize_t kernfs_file_direct_read(struct kernfs_open_file *of,
 		goto out_free;
 	}
 
-	of->event = atomic_read(&of->kn->attr.open->event);
+	of->event = atomic_read_unchecked(&of->kn->attr.open->event);
 	ops = kernfs_ops(of->kn);
 	if (ops->read)
 		len = ops->read(of, buf, len, *ppos);
@@ -272,7 +272,7 @@ static ssize_t kernfs_fop_write(struct file *file, const char __user *user_buf,
 {
 	struct kernfs_open_file *of = kernfs_of(file);
 	const struct kernfs_ops *ops;
-	size_t len;
+	ssize_t len;
 	char *buf;
 
 	if (of->atomic_write_len) {
@@ -385,12 +385,12 @@ static int kernfs_vma_page_mkwrite(struct vm_area_struct *vma,
 	return ret;
 }
 
-static int kernfs_vma_access(struct vm_area_struct *vma, unsigned long addr,
-			     void *buf, int len, int write)
+static ssize_t kernfs_vma_access(struct vm_area_struct *vma, unsigned long addr,
+			     void *buf, size_t len, int write)
 {
 	struct file *file = vma->vm_file;
 	struct kernfs_open_file *of = kernfs_of(file);
-	int ret;
+	ssize_t ret;
 
 	if (!of->vm_ops)
 		return -EINVAL;
@@ -569,7 +569,7 @@ static int kernfs_get_open_node(struct kernfs_node *kn,
 		return -ENOMEM;
 
 	atomic_set(&new_on->refcnt, 0);
-	atomic_set(&new_on->event, 1);
+	atomic_set_unchecked(&new_on->event, 1);
 	init_waitqueue_head(&new_on->poll);
 	INIT_LIST_HEAD(&new_on->files);
 	goto retry;
@@ -792,7 +792,7 @@ static unsigned int kernfs_fop_poll(struct file *filp, poll_table *wait)
 
 	kernfs_put_active(kn);
 
-	if (of->event != atomic_read(&on->event))
+	if (of->event != atomic_read_unchecked(&on->event))
 		goto trigger;
 
 	return DEFAULT_POLLMASK;
@@ -823,7 +823,7 @@ repeat:
 
 	on = kn->attr.open;
 	if (on) {
-		atomic_inc(&on->event);
+		atomic_inc_unchecked(&on->event);
 		wake_up_interruptible(&on->poll);
 	}
 
diff --git a/fs/libfs.c b/fs/libfs.c
index f3fa82c..b316fbf 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -155,6 +155,9 @@ int dcache_readdir(struct file *file, struct dir_context *ctx)
 
 	for (p = q->next; p != &dentry->d_subdirs; p = p->next) {
 		struct dentry *next = list_entry(p, struct dentry, d_child);
+		char d_name[sizeof(next->d_iname)];
+		const unsigned char *name;
+
 		spin_lock_nested(&next->d_lock, DENTRY_D_LOCK_NESTED);
 		if (!simple_positive(next)) {
 			spin_unlock(&next->d_lock);
@@ -163,7 +166,12 @@ int dcache_readdir(struct file *file, struct dir_context *ctx)
 
 		spin_unlock(&next->d_lock);
 		spin_unlock(&dentry->d_lock);
-		if (!dir_emit(ctx, next->d_name.name, next->d_name.len,
+		name = next->d_name.name;
+		if (name == next->d_iname) {
+			memcpy(d_name, name, next->d_name.len);
+			name = d_name;
+		}
+		if (!dir_emit(ctx, name, next->d_name.len,
 			      d_inode(next)->i_ino, dt_type(d_inode(next))))
 			return 0;
 		spin_lock(&dentry->d_lock);
diff --git a/fs/lockd/clnt4xdr.c b/fs/lockd/clnt4xdr.c
index d3e40db..a300f9c 100644
--- a/fs/lockd/clnt4xdr.c
+++ b/fs/lockd/clnt4xdr.c
@@ -379,10 +379,11 @@ static void encode_nlm4_lock(struct xdr_stream *xdr,
  *		struct nlm4_lock alock;
  *	};
  */
-static void nlm4_xdr_enc_testargs(struct rpc_rqst *req,
+static void nlm4_xdr_enc_testargs(void *req,
 				  struct xdr_stream *xdr,
-				  const struct nlm_args *args)
+				  void *_args)
 {
+	const struct nlm_args *args = _args;
 	const struct nlm_lock *lock = &args->lock;
 
 	encode_cookie(xdr, &args->cookie);
@@ -400,10 +401,11 @@ static void nlm4_xdr_enc_testargs(struct rpc_rqst *req,
  *		int state;
  *	};
  */
-static void nlm4_xdr_enc_lockargs(struct rpc_rqst *req,
+static void nlm4_xdr_enc_lockargs(void *req,
 				  struct xdr_stream *xdr,
-				  const struct nlm_args *args)
+				  void *_args)
 {
+	const struct nlm_args *args = _args;
 	const struct nlm_lock *lock = &args->lock;
 
 	encode_cookie(xdr, &args->cookie);
@@ -422,10 +424,11 @@ static void nlm4_xdr_enc_lockargs(struct rpc_rqst *req,
  *		struct nlm4_lock alock;
  *	};
  */
-static void nlm4_xdr_enc_cancargs(struct rpc_rqst *req,
+static void nlm4_xdr_enc_cancargs(void *req,
 				  struct xdr_stream *xdr,
-				  const struct nlm_args *args)
+				  void *_args)
 {
+	const struct nlm_args *args = _args;
 	const struct nlm_lock *lock = &args->lock;
 
 	encode_cookie(xdr, &args->cookie);
@@ -440,10 +443,11 @@ static void nlm4_xdr_enc_cancargs(struct rpc_rqst *req,
  *		struct nlm4_lock alock;
  *	};
  */
-static void nlm4_xdr_enc_unlockargs(struct rpc_rqst *req,
+static void nlm4_xdr_enc_unlockargs(void *req,
 				    struct xdr_stream *xdr,
-				    const struct nlm_args *args)
+				    void *_args)
 {
+	const struct nlm_args *args = _args;
 	const struct nlm_lock *lock = &args->lock;
 
 	encode_cookie(xdr, &args->cookie);
@@ -456,10 +460,12 @@ static void nlm4_xdr_enc_unlockargs(struct rpc_rqst *req,
  *		nlm4_stat stat;
  *	};
  */
-static void nlm4_xdr_enc_res(struct rpc_rqst *req,
+static void nlm4_xdr_enc_res(void *req,
 			     struct xdr_stream *xdr,
-			     const struct nlm_res *result)
+			     void *_result)
 {
+	const struct nlm_res *result = _result;
+
 	encode_cookie(xdr, &result->cookie);
 	encode_nlm4_stat(xdr, result->status);
 }
@@ -477,10 +483,12 @@ static void nlm4_xdr_enc_res(struct rpc_rqst *req,
  *		nlm4_testrply test_stat;
  *	};
  */
-static void nlm4_xdr_enc_testres(struct rpc_rqst *req,
+static void nlm4_xdr_enc_testres(void *req,
 				 struct xdr_stream *xdr,
-				 const struct nlm_res *result)
+				 void *_result)
 {
+	const struct nlm_res *result = _result;
+
 	encode_cookie(xdr, &result->cookie);
 	encode_nlm4_stat(xdr, result->status);
 	if (result->status == nlm_lck_denied)
@@ -523,10 +531,11 @@ out:
 	return error;
 }
 
-static int nlm4_xdr_dec_testres(struct rpc_rqst *req,
+static int nlm4_xdr_dec_testres(void *req,
 				struct xdr_stream *xdr,
-				struct nlm_res *result)
+				void *_result)
 {
+	struct nlm_res *result = _result;
 	int error;
 
 	error = decode_cookie(xdr, &result->cookie);
@@ -543,10 +552,11 @@ out:
  *		nlm4_stat stat;
  *	};
  */
-static int nlm4_xdr_dec_res(struct rpc_rqst *req,
+static int nlm4_xdr_dec_res(void *req,
 			    struct xdr_stream *xdr,
-			    struct nlm_res *result)
+			    void *_result)
 {
+	struct nlm_res *result = _result;
 	int error;
 
 	error = decode_cookie(xdr, &result->cookie);
@@ -566,8 +576,8 @@ out:
 #define PROC(proc, argtype, restype)					\
 [NLMPROC_##proc] = {							\
 	.p_proc      = NLMPROC_##proc,					\
-	.p_encode    = (kxdreproc_t)nlm4_xdr_enc_##argtype,		\
-	.p_decode    = (kxdrdproc_t)nlm4_xdr_dec_##restype,		\
+	.p_encode    = nlm4_xdr_enc_##argtype,				\
+	.p_decode    = nlm4_xdr_dec_##restype,				\
 	.p_arglen    = NLM4_##argtype##_sz,				\
 	.p_replen    = NLM4_##restype##_sz,				\
 	.p_statidx   = NLMPROC_##proc,					\
diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c
index 1129520..356aeca 100644
--- a/fs/lockd/clntproc.c
+++ b/fs/lockd/clntproc.c
@@ -36,11 +36,11 @@ static const struct rpc_call_ops nlmclnt_cancel_ops;
 /*
  * Cookie counter for NLM requests
  */
-static atomic_t	nlm_cookie = ATOMIC_INIT(0x1234);
+static atomic_unchecked_t	nlm_cookie = ATOMIC_INIT(0x1234);
 
 void nlmclnt_next_cookie(struct nlm_cookie *c)
 {
-	u32	cookie = atomic_inc_return(&nlm_cookie);
+	u32	cookie = atomic_inc_return_unchecked(&nlm_cookie);
 
 	memcpy(c->data, &cookie, 4);
 	c->len=4;
diff --git a/fs/lockd/clntxdr.c b/fs/lockd/clntxdr.c
index 3e9f787..c2177b8 100644
--- a/fs/lockd/clntxdr.c
+++ b/fs/lockd/clntxdr.c
@@ -372,10 +372,11 @@ static void encode_nlm_lock(struct xdr_stream *xdr,
  *		struct nlm_lock alock;
  *	};
  */
-static void nlm_xdr_enc_testargs(struct rpc_rqst *req,
+static void nlm_xdr_enc_testargs(void *req,
 				 struct xdr_stream *xdr,
-				 const struct nlm_args *args)
+				 void *_args)
 {
+	const struct nlm_args *args = _args;
 	const struct nlm_lock *lock = &args->lock;
 
 	encode_cookie(xdr, &args->cookie);
@@ -393,10 +394,11 @@ static void nlm_xdr_enc_testargs(struct rpc_rqst *req,
  *		int state;
  *	};
  */
-static void nlm_xdr_enc_lockargs(struct rpc_rqst *req,
+static void nlm_xdr_enc_lockargs(void *req,
 				 struct xdr_stream *xdr,
-				 const struct nlm_args *args)
+				 void *_args)
 {
+	const struct nlm_args *args = _args;
 	const struct nlm_lock *lock = &args->lock;
 
 	encode_cookie(xdr, &args->cookie);
@@ -415,10 +417,11 @@ static void nlm_xdr_enc_lockargs(struct rpc_rqst *req,
  *		struct nlm_lock alock;
  *	};
  */
-static void nlm_xdr_enc_cancargs(struct rpc_rqst *req,
+static void nlm_xdr_enc_cancargs(void *req,
 				 struct xdr_stream *xdr,
-				 const struct nlm_args *args)
+				 void *_args)
 {
+	const struct nlm_args *args = _args;
 	const struct nlm_lock *lock = &args->lock;
 
 	encode_cookie(xdr, &args->cookie);
@@ -433,10 +436,11 @@ static void nlm_xdr_enc_cancargs(struct rpc_rqst *req,
  *		struct nlm_lock alock;
  *	};
  */
-static void nlm_xdr_enc_unlockargs(struct rpc_rqst *req,
+static void nlm_xdr_enc_unlockargs(void *req,
 				   struct xdr_stream *xdr,
-				   const struct nlm_args *args)
+				   void *_args)
 {
+	const struct nlm_args *args = _args;
 	const struct nlm_lock *lock = &args->lock;
 
 	encode_cookie(xdr, &args->cookie);
@@ -449,10 +453,11 @@ static void nlm_xdr_enc_unlockargs(struct rpc_rqst *req,
  *		nlm_stat stat;
  *	};
  */
-static void nlm_xdr_enc_res(struct rpc_rqst *req,
+static void nlm_xdr_enc_res(void *req,
 			    struct xdr_stream *xdr,
-			    const struct nlm_res *result)
+			    void *_result)
 {
+	const struct nlm_res *result = _result;
 	encode_cookie(xdr, &result->cookie);
 	encode_nlm_stat(xdr, result->status);
 }
@@ -477,10 +482,11 @@ static void encode_nlm_testrply(struct xdr_stream *xdr,
 		encode_nlm_holder(xdr, result);
 }
 
-static void nlm_xdr_enc_testres(struct rpc_rqst *req,
+static void nlm_xdr_enc_testres(void *req,
 				struct xdr_stream *xdr,
-				const struct nlm_res *result)
+				void *_result)
 {
+	const struct nlm_res *result = _result;
 	encode_cookie(xdr, &result->cookie);
 	encode_nlm_stat(xdr, result->status);
 	encode_nlm_testrply(xdr, result);
@@ -521,11 +527,12 @@ out:
 	return error;
 }
 
-static int nlm_xdr_dec_testres(struct rpc_rqst *req,
+static int nlm_xdr_dec_testres(void *req,
 			       struct xdr_stream *xdr,
-			       struct nlm_res *result)
+			       void *_result)
 {
 	int error;
+	struct nlm_res *result = _result;
 
 	error = decode_cookie(xdr, &result->cookie);
 	if (unlikely(error))
@@ -541,11 +548,12 @@ out:
  *		nlm_stat stat;
  *	};
  */
-static int nlm_xdr_dec_res(struct rpc_rqst *req,
+static int nlm_xdr_dec_res(void *req,
 			   struct xdr_stream *xdr,
-			   struct nlm_res *result)
+			   void *_result)
 {
 	int error;
+	struct nlm_res *result = _result;
 
 	error = decode_cookie(xdr, &result->cookie);
 	if (unlikely(error))
@@ -564,8 +572,8 @@ out:
 #define PROC(proc, argtype, restype)	\
 [NLMPROC_##proc] = {							\
 	.p_proc      = NLMPROC_##proc,					\
-	.p_encode    = (kxdreproc_t)nlm_xdr_enc_##argtype,		\
-	.p_decode    = (kxdrdproc_t)nlm_xdr_dec_##restype,		\
+	.p_encode    = nlm_xdr_enc_##argtype,				\
+	.p_decode    = nlm_xdr_dec_##restype,				\
 	.p_arglen    = NLM_##argtype##_sz,				\
 	.p_replen    = NLM_##restype##_sz,				\
 	.p_statidx   = NLMPROC_##proc,					\
diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c
index 19166d4..c841d52 100644
--- a/fs/lockd/mon.c
+++ b/fs/lockd/mon.c
@@ -475,23 +475,22 @@ static void encode_priv(struct xdr_stream *xdr, const struct nsm_args *argp)
 	xdr_encode_opaque_fixed(p, argp->priv->data, SM_PRIV_SIZE);
 }
 
-static void nsm_xdr_enc_mon(struct rpc_rqst *req, struct xdr_stream *xdr,
-			    const struct nsm_args *argp)
+static void nsm_xdr_enc_mon(void *req, struct xdr_stream *xdr, void *argp)
 {
 	encode_mon_id(xdr, argp);
 	encode_priv(xdr, argp);
 }
 
-static void nsm_xdr_enc_unmon(struct rpc_rqst *req, struct xdr_stream *xdr,
-			      const struct nsm_args *argp)
+static void nsm_xdr_enc_unmon(void *req, struct xdr_stream *xdr, void *argp)
 {
 	encode_mon_id(xdr, argp);
 }
 
-static int nsm_xdr_dec_stat_res(struct rpc_rqst *rqstp,
+static int nsm_xdr_dec_stat_res(void *rqstp,
 				struct xdr_stream *xdr,
-				struct nsm_res *resp)
+				void *_resp)
 {
+	struct nsm_res *resp = _resp;
 	__be32 *p;
 
 	p = xdr_inline_decode(xdr, 4 + 4);
@@ -505,10 +504,11 @@ static int nsm_xdr_dec_stat_res(struct rpc_rqst *rqstp,
 	return 0;
 }
 
-static int nsm_xdr_dec_stat(struct rpc_rqst *rqstp,
+static int nsm_xdr_dec_stat(void *rqstp,
 			    struct xdr_stream *xdr,
-			    struct nsm_res *resp)
+			    void *_resp)
 {
+	struct nsm_res *resp = _resp;
 	__be32 *p;
 
 	p = xdr_inline_decode(xdr, 4);
@@ -532,8 +532,8 @@ static int nsm_xdr_dec_stat(struct rpc_rqst *rqstp,
 static struct rpc_procinfo	nsm_procedures[] = {
 [NSMPROC_MON] = {
 		.p_proc		= NSMPROC_MON,
-		.p_encode	= (kxdreproc_t)nsm_xdr_enc_mon,
-		.p_decode	= (kxdrdproc_t)nsm_xdr_dec_stat_res,
+		.p_encode	= nsm_xdr_enc_mon,
+		.p_decode	= nsm_xdr_dec_stat_res,
 		.p_arglen	= SM_mon_sz,
 		.p_replen	= SM_monres_sz,
 		.p_statidx	= NSMPROC_MON,
@@ -541,8 +541,8 @@ static struct rpc_procinfo	nsm_procedures[] = {
 	},
 [NSMPROC_UNMON] = {
 		.p_proc		= NSMPROC_UNMON,
-		.p_encode	= (kxdreproc_t)nsm_xdr_enc_unmon,
-		.p_decode	= (kxdrdproc_t)nsm_xdr_dec_stat,
+		.p_encode	= nsm_xdr_enc_unmon,
+		.p_decode	= nsm_xdr_dec_stat,
 		.p_arglen	= SM_mon_id_sz,
 		.p_replen	= SM_unmonres_sz,
 		.p_statidx	= NSMPROC_UNMON,
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 154a107..7b77da4 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -591,7 +591,7 @@ static struct ctl_table nlm_sysctl_root[] = {
  */
 
 #define param_set_min_max(name, type, which_strtol, min, max)		\
-static int param_set_##name(const char *val, struct kernel_param *kp)	\
+static int param_set_##name(const char *val, const struct kernel_param *kp)\
 {									\
 	char *endp;							\
 	__typeof__(type) num = which_strtol(val, &endp, 0);		\
diff --git a/fs/lockd/svc4proc.c b/fs/lockd/svc4proc.c
index 09c576f..89b4d3d 100644
--- a/fs/lockd/svc4proc.c
+++ b/fs/lockd/svc4proc.c
@@ -72,9 +72,10 @@ nlm4svc_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
  * TEST: Check for conflicting lock
  */
 static __be32
-nlm4svc_proc_test(struct svc_rqst *rqstp, struct nlm_args *argp,
-				         struct nlm_res  *resp)
+nlm4svc_proc_test(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nlm_args *argp = _argp;
+	struct nlm_res  *resp = _resp;
 	struct nlm_host	*host;
 	struct nlm_file	*file;
 	__be32 rc = rpc_success;
@@ -99,9 +100,10 @@ nlm4svc_proc_test(struct svc_rqst *rqstp, struct nlm_args *argp,
 }
 
 static __be32
-nlm4svc_proc_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
-				         struct nlm_res  *resp)
+nlm4svc_proc_lock(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nlm_args *argp = _argp;
+	struct nlm_res  *resp = _resp;
 	struct nlm_host	*host;
 	struct nlm_file	*file;
 	__be32 rc = rpc_success;
@@ -141,9 +143,10 @@ nlm4svc_proc_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
 }
 
 static __be32
-nlm4svc_proc_cancel(struct svc_rqst *rqstp, struct nlm_args *argp,
-				           struct nlm_res  *resp)
+nlm4svc_proc_cancel(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nlm_args *argp = _argp;
+	struct nlm_res  *resp = _resp;
 	struct nlm_host	*host;
 	struct nlm_file	*file;
 
@@ -174,9 +177,10 @@ nlm4svc_proc_cancel(struct svc_rqst *rqstp, struct nlm_args *argp,
  * UNLOCK: release a lock
  */
 static __be32
-nlm4svc_proc_unlock(struct svc_rqst *rqstp, struct nlm_args *argp,
-				           struct nlm_res  *resp)
+nlm4svc_proc_unlock(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nlm_args *argp = _argp;
+	struct nlm_res  *resp = _resp;
 	struct nlm_host	*host;
 	struct nlm_file	*file;
 
@@ -208,9 +212,11 @@ nlm4svc_proc_unlock(struct svc_rqst *rqstp, struct nlm_args *argp,
  * was granted
  */
 static __be32
-nlm4svc_proc_granted(struct svc_rqst *rqstp, struct nlm_args *argp,
-				            struct nlm_res  *resp)
+nlm4svc_proc_granted(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nlm_args *argp = _argp;
+	struct nlm_res  *resp = _resp;
+
 	resp->cookie = argp->cookie;
 
 	dprintk("lockd: GRANTED       called\n");
@@ -244,7 +250,7 @@ static const struct rpc_call_ops nlm4svc_callback_ops = {
  * doesn't break any clients.
  */
 static __be32 nlm4svc_callback(struct svc_rqst *rqstp, u32 proc, struct nlm_args *argp,
-		__be32 (*func)(struct svc_rqst *, struct nlm_args *, struct nlm_res  *))
+		__be32 (*func)(struct svc_rqst *, void *, void *))
 {
 	struct nlm_host	*host;
 	struct nlm_rqst	*call;
@@ -273,35 +279,35 @@ static __be32 nlm4svc_callback(struct svc_rqst *rqstp, u32 proc, struct nlm_args
 	return rpc_success;
 }
 
-static __be32 nlm4svc_proc_test_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
+static __be32 nlm4svc_proc_test_msg(struct svc_rqst *rqstp, void *argp,
 					     void	     *resp)
 {
 	dprintk("lockd: TEST_MSG      called\n");
 	return nlm4svc_callback(rqstp, NLMPROC_TEST_RES, argp, nlm4svc_proc_test);
 }
 
-static __be32 nlm4svc_proc_lock_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
+static __be32 nlm4svc_proc_lock_msg(struct svc_rqst *rqstp, void *argp,
 					     void	     *resp)
 {
 	dprintk("lockd: LOCK_MSG      called\n");
 	return nlm4svc_callback(rqstp, NLMPROC_LOCK_RES, argp, nlm4svc_proc_lock);
 }
 
-static __be32 nlm4svc_proc_cancel_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
+static __be32 nlm4svc_proc_cancel_msg(struct svc_rqst *rqstp, void *argp,
 					       void	       *resp)
 {
 	dprintk("lockd: CANCEL_MSG    called\n");
 	return nlm4svc_callback(rqstp, NLMPROC_CANCEL_RES, argp, nlm4svc_proc_cancel);
 }
 
-static __be32 nlm4svc_proc_unlock_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
+static __be32 nlm4svc_proc_unlock_msg(struct svc_rqst *rqstp, void *argp,
                                                void            *resp)
 {
 	dprintk("lockd: UNLOCK_MSG    called\n");
 	return nlm4svc_callback(rqstp, NLMPROC_UNLOCK_RES, argp, nlm4svc_proc_unlock);
 }
 
-static __be32 nlm4svc_proc_granted_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
+static __be32 nlm4svc_proc_granted_msg(struct svc_rqst *rqstp, void *argp,
                                                 void            *resp)
 {
 	dprintk("lockd: GRANTED_MSG   called\n");
@@ -312,9 +318,10 @@ static __be32 nlm4svc_proc_granted_msg(struct svc_rqst *rqstp, struct nlm_args *
  * SHARE: create a DOS share or alter existing share.
  */
 static __be32
-nlm4svc_proc_share(struct svc_rqst *rqstp, struct nlm_args *argp,
-				          struct nlm_res  *resp)
+nlm4svc_proc_share(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nlm_args *argp = _argp;
+	struct nlm_res  *resp = _resp;
 	struct nlm_host	*host;
 	struct nlm_file	*file;
 
@@ -345,9 +352,10 @@ nlm4svc_proc_share(struct svc_rqst *rqstp, struct nlm_args *argp,
  * UNSHARE: Release a DOS share.
  */
 static __be32
-nlm4svc_proc_unshare(struct svc_rqst *rqstp, struct nlm_args *argp,
-				            struct nlm_res  *resp)
+nlm4svc_proc_unshare(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nlm_args *argp = _argp;
+	struct nlm_res  *resp = _resp;
 	struct nlm_host	*host;
 	struct nlm_file	*file;
 
@@ -378,9 +386,10 @@ nlm4svc_proc_unshare(struct svc_rqst *rqstp, struct nlm_args *argp,
  * NM_LOCK: Create an unmonitored lock
  */
 static __be32
-nlm4svc_proc_nm_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
-				            struct nlm_res  *resp)
+nlm4svc_proc_nm_lock(struct svc_rqst *rqstp, void *_argp, void *resp)
 {
+	struct nlm_args *argp = _argp;
+
 	dprintk("lockd: NM_LOCK       called\n");
 
 	argp->monitor = 0;		/* just clean the monitor flag */
@@ -391,8 +400,7 @@ nlm4svc_proc_nm_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
  * FREE_ALL: Release all locks and shares held by client
  */
 static __be32
-nlm4svc_proc_free_all(struct svc_rqst *rqstp, struct nlm_args *argp,
-					     void            *resp)
+nlm4svc_proc_free_all(struct svc_rqst *rqstp, void *argp, void *resp)
 {
 	struct nlm_host	*host;
 
@@ -409,7 +417,7 @@ nlm4svc_proc_free_all(struct svc_rqst *rqstp, struct nlm_args *argp,
  * SM_NOTIFY: private callback from statd (not part of official NLM proto)
  */
 static __be32
-nlm4svc_proc_sm_notify(struct svc_rqst *rqstp, struct nlm_reboot *argp,
+nlm4svc_proc_sm_notify(struct svc_rqst *rqstp, void *argp,
 					      void	        *resp)
 {
 	dprintk("lockd: SM_NOTIFY     called\n");
@@ -429,9 +437,10 @@ nlm4svc_proc_sm_notify(struct svc_rqst *rqstp, struct nlm_reboot *argp,
  * client sent a GRANTED_RES, let's remove the associated block
  */
 static __be32
-nlm4svc_proc_granted_res(struct svc_rqst *rqstp, struct nlm_res  *argp,
-                                                void            *resp)
+nlm4svc_proc_granted_res(struct svc_rqst *rqstp, void *_argp, void *resp)
 {
+	struct nlm_res *argp = _argp;
+
         if (!nlmsvc_ops)
                 return rpc_success;
 
@@ -463,9 +472,9 @@ nlm4svc_proc_granted_res(struct svc_rqst *rqstp, struct nlm_res  *argp,
 struct nlm_void			{ int dummy; };
 
 #define PROC(name, xargt, xrest, argt, rest, respsize)	\
- { .pc_func	= (svc_procfunc) nlm4svc_proc_##name,	\
-   .pc_decode	= (kxdrproc_t) nlm4svc_decode_##xargt,	\
-   .pc_encode	= (kxdrproc_t) nlm4svc_encode_##xrest,	\
+ { .pc_func	= nlm4svc_proc_##name,			\
+   .pc_decode	= nlm4svc_decode_##xargt,		\
+   .pc_encode	= nlm4svc_encode_##xrest,		\
    .pc_release	= NULL,					\
    .pc_argsize	= sizeof(struct nlm_##argt),		\
    .pc_ressize	= sizeof(struct nlm_##rest),		\
diff --git a/fs/lockd/svcproc.c b/fs/lockd/svcproc.c
index fb26b9f..a6d5582 100644
--- a/fs/lockd/svcproc.c
+++ b/fs/lockd/svcproc.c
@@ -102,9 +102,10 @@ nlmsvc_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
  * TEST: Check for conflicting lock
  */
 static __be32
-nlmsvc_proc_test(struct svc_rqst *rqstp, struct nlm_args *argp,
-				         struct nlm_res  *resp)
+nlmsvc_proc_test(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nlm_args *argp = _argp;
+	struct nlm_res *resp = _resp;
 	struct nlm_host	*host;
 	struct nlm_file	*file;
 	__be32 rc = rpc_success;
@@ -130,9 +131,10 @@ nlmsvc_proc_test(struct svc_rqst *rqstp, struct nlm_args *argp,
 }
 
 static __be32
-nlmsvc_proc_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
-				         struct nlm_res  *resp)
+nlmsvc_proc_lock(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nlm_args *argp = _argp;
+	struct nlm_res *resp = _resp;
 	struct nlm_host	*host;
 	struct nlm_file	*file;
 	__be32 rc = rpc_success;
@@ -172,9 +174,10 @@ nlmsvc_proc_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
 }
 
 static __be32
-nlmsvc_proc_cancel(struct svc_rqst *rqstp, struct nlm_args *argp,
-				           struct nlm_res  *resp)
+nlmsvc_proc_cancel(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nlm_args *argp = _argp;
+	struct nlm_res *resp = _resp;
 	struct nlm_host	*host;
 	struct nlm_file	*file;
 	struct net *net = SVC_NET(rqstp);
@@ -206,9 +209,10 @@ nlmsvc_proc_cancel(struct svc_rqst *rqstp, struct nlm_args *argp,
  * UNLOCK: release a lock
  */
 static __be32
-nlmsvc_proc_unlock(struct svc_rqst *rqstp, struct nlm_args *argp,
-				           struct nlm_res  *resp)
+nlmsvc_proc_unlock(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nlm_args *argp = _argp;
+	struct nlm_res *resp = _resp;
 	struct nlm_host	*host;
 	struct nlm_file	*file;
 	struct net *net = SVC_NET(rqstp);
@@ -241,9 +245,11 @@ nlmsvc_proc_unlock(struct svc_rqst *rqstp, struct nlm_args *argp,
  * was granted
  */
 static __be32
-nlmsvc_proc_granted(struct svc_rqst *rqstp, struct nlm_args *argp,
-				            struct nlm_res  *resp)
+nlmsvc_proc_granted(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nlm_args *argp = _argp;
+	struct nlm_res *resp = _resp;
+
 	resp->cookie = argp->cookie;
 
 	dprintk("lockd: GRANTED       called\n");
@@ -285,7 +291,7 @@ static const struct rpc_call_ops nlmsvc_callback_ops = {
  * doesn't break any clients.
  */
 static __be32 nlmsvc_callback(struct svc_rqst *rqstp, u32 proc, struct nlm_args *argp,
-		__be32 (*func)(struct svc_rqst *, struct nlm_args *, struct nlm_res  *))
+		__be32 (*func)(struct svc_rqst *, void *, void *))
 {
 	struct nlm_host	*host;
 	struct nlm_rqst	*call;
@@ -314,38 +320,33 @@ static __be32 nlmsvc_callback(struct svc_rqst *rqstp, u32 proc, struct nlm_args
 	return rpc_success;
 }
 
-static __be32 nlmsvc_proc_test_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
-					     void	     *resp)
+static __be32 nlmsvc_proc_test_msg(struct svc_rqst *rqstp,void *argp, void *resp)
 {
 	dprintk("lockd: TEST_MSG      called\n");
 	return nlmsvc_callback(rqstp, NLMPROC_TEST_RES, argp, nlmsvc_proc_test);
 }
 
-static __be32 nlmsvc_proc_lock_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
-					     void	     *resp)
+static __be32 nlmsvc_proc_lock_msg(struct svc_rqst *rqstp, void *argp, void *resp)
 {
 	dprintk("lockd: LOCK_MSG      called\n");
 	return nlmsvc_callback(rqstp, NLMPROC_LOCK_RES, argp, nlmsvc_proc_lock);
 }
 
-static __be32 nlmsvc_proc_cancel_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
-					       void	       *resp)
+static __be32 nlmsvc_proc_cancel_msg(struct svc_rqst *rqstp, void *argp, void *resp)
 {
 	dprintk("lockd: CANCEL_MSG    called\n");
 	return nlmsvc_callback(rqstp, NLMPROC_CANCEL_RES, argp, nlmsvc_proc_cancel);
 }
 
 static __be32
-nlmsvc_proc_unlock_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
-                                               void            *resp)
+nlmsvc_proc_unlock_msg(struct svc_rqst *rqstp, void *argp, void *resp)
 {
 	dprintk("lockd: UNLOCK_MSG    called\n");
 	return nlmsvc_callback(rqstp, NLMPROC_UNLOCK_RES, argp, nlmsvc_proc_unlock);
 }
 
 static __be32
-nlmsvc_proc_granted_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
-                                                void            *resp)
+nlmsvc_proc_granted_msg(struct svc_rqst *rqstp, void *argp, void *resp)
 {
 	dprintk("lockd: GRANTED_MSG   called\n");
 	return nlmsvc_callback(rqstp, NLMPROC_GRANTED_RES, argp, nlmsvc_proc_granted);
@@ -355,9 +356,10 @@ nlmsvc_proc_granted_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
  * SHARE: create a DOS share or alter existing share.
  */
 static __be32
-nlmsvc_proc_share(struct svc_rqst *rqstp, struct nlm_args *argp,
-				          struct nlm_res  *resp)
+nlmsvc_proc_share(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nlm_args *argp = _argp;
+	struct nlm_res *resp = _resp;
 	struct nlm_host	*host;
 	struct nlm_file	*file;
 
@@ -388,9 +390,10 @@ nlmsvc_proc_share(struct svc_rqst *rqstp, struct nlm_args *argp,
  * UNSHARE: Release a DOS share.
  */
 static __be32
-nlmsvc_proc_unshare(struct svc_rqst *rqstp, struct nlm_args *argp,
-				            struct nlm_res  *resp)
+nlmsvc_proc_unshare(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nlm_args *argp = _argp;
+	struct nlm_res *resp = _resp;
 	struct nlm_host	*host;
 	struct nlm_file	*file;
 
@@ -421,9 +424,10 @@ nlmsvc_proc_unshare(struct svc_rqst *rqstp, struct nlm_args *argp,
  * NM_LOCK: Create an unmonitored lock
  */
 static __be32
-nlmsvc_proc_nm_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
-				            struct nlm_res  *resp)
+nlmsvc_proc_nm_lock(struct svc_rqst *rqstp, void *_argp, void *resp)
 {
+	struct nlm_args *argp = _argp;
+
 	dprintk("lockd: NM_LOCK       called\n");
 
 	argp->monitor = 0;		/* just clean the monitor flag */
@@ -434,8 +438,7 @@ nlmsvc_proc_nm_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
  * FREE_ALL: Release all locks and shares held by client
  */
 static __be32
-nlmsvc_proc_free_all(struct svc_rqst *rqstp, struct nlm_args *argp,
-					     void            *resp)
+nlmsvc_proc_free_all(struct svc_rqst *rqstp, void *argp, void *resp)
 {
 	struct nlm_host	*host;
 
@@ -452,8 +455,7 @@ nlmsvc_proc_free_all(struct svc_rqst *rqstp, struct nlm_args *argp,
  * SM_NOTIFY: private callback from statd (not part of official NLM proto)
  */
 static __be32
-nlmsvc_proc_sm_notify(struct svc_rqst *rqstp, struct nlm_reboot *argp,
-					      void	        *resp)
+nlmsvc_proc_sm_notify(struct svc_rqst *rqstp, void *argp, void *resp)
 {
 	dprintk("lockd: SM_NOTIFY     called\n");
 
@@ -472,9 +474,10 @@ nlmsvc_proc_sm_notify(struct svc_rqst *rqstp, struct nlm_reboot *argp,
  * client sent a GRANTED_RES, let's remove the associated block
  */
 static __be32
-nlmsvc_proc_granted_res(struct svc_rqst *rqstp, struct nlm_res  *argp,
-                                                void            *resp)
+nlmsvc_proc_granted_res(struct svc_rqst *rqstp, void *_argp, void *resp)
 {
+	struct nlm_res *argp = _argp;
+
 	if (!nlmsvc_ops)
 		return rpc_success;
 
@@ -505,9 +508,9 @@ nlmsvc_proc_granted_res(struct svc_rqst *rqstp, struct nlm_res  *argp,
 struct nlm_void			{ int dummy; };
 
 #define PROC(name, xargt, xrest, argt, rest, respsize)	\
- { .pc_func	= (svc_procfunc) nlmsvc_proc_##name,	\
-   .pc_decode	= (kxdrproc_t) nlmsvc_decode_##xargt,	\
-   .pc_encode	= (kxdrproc_t) nlmsvc_encode_##xrest,	\
+ { .pc_func	= nlmsvc_proc_##name,			\
+   .pc_decode	= nlmsvc_decode_##xargt,		\
+   .pc_encode	= nlmsvc_encode_##xrest,		\
    .pc_release	= NULL,					\
    .pc_argsize	= sizeof(struct nlm_##argt),		\
    .pc_ressize	= sizeof(struct nlm_##rest),		\
diff --git a/fs/lockd/xdr.c b/fs/lockd/xdr.c
index 5b651da..cfe0944 100644
--- a/fs/lockd/xdr.c
+++ b/fs/lockd/xdr.c
@@ -182,8 +182,9 @@ nlm_encode_testres(__be32 *p, struct nlm_res *resp)
  * First, the server side XDR functions
  */
 int
-nlmsvc_decode_testargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
+nlmsvc_decode_testargs(void *rqstp, __be32 *p, void *_argp)
 {
+	nlm_args *argp = _argp;
 	u32	exclusive;
 
 	if (!(p = nlm_decode_cookie(p, &argp->cookie)))
@@ -199,16 +200,19 @@ nlmsvc_decode_testargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
 }
 
 int
-nlmsvc_encode_testres(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
+nlmsvc_encode_testres(void *rqstp, __be32 *p, void *_resp)
 {
+	struct nlm_res *resp = _resp;
+
 	if (!(p = nlm_encode_testres(p, resp)))
 		return 0;
 	return xdr_ressize_check(rqstp, p);
 }
 
 int
-nlmsvc_decode_lockargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
+nlmsvc_decode_lockargs(void *rqstp, __be32 *p, void *_argp)
 {
+	nlm_args *argp = _argp;
 	u32	exclusive;
 
 	if (!(p = nlm_decode_cookie(p, &argp->cookie)))
@@ -227,8 +231,9 @@ nlmsvc_decode_lockargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
 }
 
 int
-nlmsvc_decode_cancargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
+nlmsvc_decode_cancargs(void *rqstp, __be32 *p, void *_argp)
 {
+	nlm_args *argp = _argp;
 	u32	exclusive;
 
 	if (!(p = nlm_decode_cookie(p, &argp->cookie)))
@@ -243,8 +248,10 @@ nlmsvc_decode_cancargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
 }
 
 int
-nlmsvc_decode_unlockargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
+nlmsvc_decode_unlockargs(void *rqstp, __be32 *p, void *_argp)
 {
+	nlm_args *argp = _argp;
+
 	if (!(p = nlm_decode_cookie(p, &argp->cookie))
 	 || !(p = nlm_decode_lock(p, &argp->lock)))
 		return 0;
@@ -253,8 +260,10 @@ nlmsvc_decode_unlockargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
 }
 
 int
-nlmsvc_decode_shareargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
+nlmsvc_decode_shareargs(void *rqstp, __be32 *p, void *_argp)
 {
+	nlm_args *argp = _argp;
+
 	struct nlm_lock	*lock = &argp->lock;
 
 	memset(lock, 0, sizeof(*lock));
@@ -274,8 +283,10 @@ nlmsvc_decode_shareargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
 }
 
 int
-nlmsvc_encode_shareres(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
+nlmsvc_encode_shareres(void *rqstp, __be32 *p, void *_resp)
 {
+	struct nlm_res *resp = _resp;
+
 	if (!(p = nlm_encode_cookie(p, &resp->cookie)))
 		return 0;
 	*p++ = resp->status;
@@ -284,8 +295,10 @@ nlmsvc_encode_shareres(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
 }
 
 int
-nlmsvc_encode_res(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
+nlmsvc_encode_res(void *rqstp, __be32 *p, void *_resp)
 {
+	struct nlm_res *resp = _resp;
+
 	if (!(p = nlm_encode_cookie(p, &resp->cookie)))
 		return 0;
 	*p++ = resp->status;
@@ -293,8 +306,9 @@ nlmsvc_encode_res(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
 }
 
 int
-nlmsvc_decode_notify(struct svc_rqst *rqstp, __be32 *p, struct nlm_args *argp)
+nlmsvc_decode_notify(void *rqstp, __be32 *p, void *_argp)
 {
+	struct nlm_args *argp = _argp;
 	struct nlm_lock	*lock = &argp->lock;
 
 	if (!(p = xdr_decode_string_inplace(p, &lock->caller,
@@ -305,8 +319,10 @@ nlmsvc_decode_notify(struct svc_rqst *rqstp, __be32 *p, struct nlm_args *argp)
 }
 
 int
-nlmsvc_decode_reboot(struct svc_rqst *rqstp, __be32 *p, struct nlm_reboot *argp)
+nlmsvc_decode_reboot(void *rqstp, __be32 *p, void *_argp)
 {
+	struct nlm_reboot *argp = _argp;
+
 	if (!(p = xdr_decode_string_inplace(p, &argp->mon, &argp->len, SM_MAXSTRLEN)))
 		return 0;
 	argp->state = ntohl(*p++);
@@ -316,8 +332,10 @@ nlmsvc_decode_reboot(struct svc_rqst *rqstp, __be32 *p, struct nlm_reboot *argp)
 }
 
 int
-nlmsvc_decode_res(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
+nlmsvc_decode_res(void *rqstp, __be32 *p, void *_resp)
 {
+	struct nlm_res *resp = _resp;
+
 	if (!(p = nlm_decode_cookie(p, &resp->cookie)))
 		return 0;
 	resp->status = *p++;
@@ -325,13 +343,13 @@ nlmsvc_decode_res(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
 }
 
 int
-nlmsvc_decode_void(struct svc_rqst *rqstp, __be32 *p, void *dummy)
+nlmsvc_decode_void(void *rqstp, __be32 *p, void *dummy)
 {
 	return xdr_argsize_check(rqstp, p);
 }
 
 int
-nlmsvc_encode_void(struct svc_rqst *rqstp, __be32 *p, void *dummy)
+nlmsvc_encode_void(void *rqstp, __be32 *p, void *dummy)
 {
 	return xdr_ressize_check(rqstp, p);
 }
diff --git a/fs/lockd/xdr4.c b/fs/lockd/xdr4.c
index dfa4789..be443bd 100644
--- a/fs/lockd/xdr4.c
+++ b/fs/lockd/xdr4.c
@@ -179,8 +179,9 @@ nlm4_encode_testres(__be32 *p, struct nlm_res *resp)
  * First, the server side XDR functions
  */
 int
-nlm4svc_decode_testargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
+nlm4svc_decode_testargs(void *rqstp, __be32 *p, void *_argp)
 {
+	nlm_args *argp = _argp;
 	u32	exclusive;
 
 	if (!(p = nlm4_decode_cookie(p, &argp->cookie)))
@@ -196,7 +197,7 @@ nlm4svc_decode_testargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
 }
 
 int
-nlm4svc_encode_testres(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
+nlm4svc_encode_testres(void *rqstp, __be32 *p, void *resp)
 {
 	if (!(p = nlm4_encode_testres(p, resp)))
 		return 0;
@@ -204,8 +205,9 @@ nlm4svc_encode_testres(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
 }
 
 int
-nlm4svc_decode_lockargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
+nlm4svc_decode_lockargs(void *rqstp, __be32 *p, void *_argp)
 {
+	nlm_args *argp = _argp;
 	u32	exclusive;
 
 	if (!(p = nlm4_decode_cookie(p, &argp->cookie)))
@@ -224,8 +226,9 @@ nlm4svc_decode_lockargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
 }
 
 int
-nlm4svc_decode_cancargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
+nlm4svc_decode_cancargs(void *rqstp, __be32 *p, void *_argp)
 {
+	nlm_args *argp = _argp;
 	u32	exclusive;
 
 	if (!(p = nlm4_decode_cookie(p, &argp->cookie)))
@@ -240,8 +243,10 @@ nlm4svc_decode_cancargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
 }
 
 int
-nlm4svc_decode_unlockargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
+nlm4svc_decode_unlockargs(void *rqstp, __be32 *p, void *_argp)
 {
+	nlm_args *argp = _argp;
+
 	if (!(p = nlm4_decode_cookie(p, &argp->cookie))
 	 || !(p = nlm4_decode_lock(p, &argp->lock)))
 		return 0;
@@ -250,8 +255,9 @@ nlm4svc_decode_unlockargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
 }
 
 int
-nlm4svc_decode_shareargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
+nlm4svc_decode_shareargs(void *rqstp, __be32 *p, void *_argp)
 {
+	nlm_args *argp = _argp;
 	struct nlm_lock	*lock = &argp->lock;
 
 	memset(lock, 0, sizeof(*lock));
@@ -271,8 +277,10 @@ nlm4svc_decode_shareargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
 }
 
 int
-nlm4svc_encode_shareres(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
+nlm4svc_encode_shareres(void *rqstp, __be32 *p, void *_resp)
 {
+	struct nlm_res *resp = _resp;
+
 	if (!(p = nlm4_encode_cookie(p, &resp->cookie)))
 		return 0;
 	*p++ = resp->status;
@@ -281,8 +289,10 @@ nlm4svc_encode_shareres(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
 }
 
 int
-nlm4svc_encode_res(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
+nlm4svc_encode_res(void *rqstp, __be32 *p, void *_resp)
 {
+	struct nlm_res *resp = _resp;
+
 	if (!(p = nlm4_encode_cookie(p, &resp->cookie)))
 		return 0;
 	*p++ = resp->status;
@@ -290,8 +300,9 @@ nlm4svc_encode_res(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
 }
 
 int
-nlm4svc_decode_notify(struct svc_rqst *rqstp, __be32 *p, struct nlm_args *argp)
+nlm4svc_decode_notify(void *rqstp, __be32 *p, void *_argp)
 {
+	struct nlm_args *argp = _argp;
 	struct nlm_lock	*lock = &argp->lock;
 
 	if (!(p = xdr_decode_string_inplace(p, &lock->caller,
@@ -302,8 +313,10 @@ nlm4svc_decode_notify(struct svc_rqst *rqstp, __be32 *p, struct nlm_args *argp)
 }
 
 int
-nlm4svc_decode_reboot(struct svc_rqst *rqstp, __be32 *p, struct nlm_reboot *argp)
+nlm4svc_decode_reboot(void *rqstp, __be32 *p, void *_argp)
 {
+	struct nlm_reboot *argp = _argp;
+
 	if (!(p = xdr_decode_string_inplace(p, &argp->mon, &argp->len, SM_MAXSTRLEN)))
 		return 0;
 	argp->state = ntohl(*p++);
@@ -313,8 +326,10 @@ nlm4svc_decode_reboot(struct svc_rqst *rqstp, __be32 *p, struct nlm_reboot *argp
 }
 
 int
-nlm4svc_decode_res(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
+nlm4svc_decode_res(void *rqstp, __be32 *p, void *_resp)
 {
+	struct nlm_res *resp = _resp;
+
 	if (!(p = nlm4_decode_cookie(p, &resp->cookie)))
 		return 0;
 	resp->status = *p++;
@@ -322,13 +337,13 @@ nlm4svc_decode_res(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
 }
 
 int
-nlm4svc_decode_void(struct svc_rqst *rqstp, __be32 *p, void *dummy)
+nlm4svc_decode_void(void *rqstp, __be32 *p, void *dummy)
 {
 	return xdr_argsize_check(rqstp, p);
 }
 
 int
-nlm4svc_encode_void(struct svc_rqst *rqstp, __be32 *p, void *dummy)
+nlm4svc_encode_void(void *rqstp, __be32 *p, void *dummy)
 {
 	return xdr_ressize_check(rqstp, p);
 }
diff --git a/fs/logfs/dev_bdev.c b/fs/logfs/dev_bdev.c
index cc26f8f..0adc94f 100644
--- a/fs/logfs/dev_bdev.c
+++ b/fs/logfs/dev_bdev.c
@@ -33,9 +33,8 @@ static int sync_request(struct page *page, struct block_device *bdev, int rw)
 	return submit_bio_wait(rw, &bio);
 }
 
-static int bdev_readpage(void *_sb, struct page *page)
+static int bdev_readpage(struct super_block *sb, struct page *page)
 {
-	struct super_block *sb = _sb;
 	struct block_device *bdev = logfs_super(sb)->s_bdev;
 	int err;
 
@@ -51,6 +50,11 @@ static int bdev_readpage(void *_sb, struct page *page)
 	return err;
 }
 
+static int bdev_filler(struct file *file, struct page *page)
+{
+	return bdev_readpage((struct super_block *)file, page);
+}
+
 static DECLARE_WAIT_QUEUE_HEAD(wq);
 
 static void writeseg_end_io(struct bio *bio)
@@ -246,7 +250,7 @@ static struct page *bdev_find_first_sb(struct super_block *sb, u64 *ofs)
 {
 	struct logfs_super *super = logfs_super(sb);
 	struct address_space *mapping = super->s_mapping_inode->i_mapping;
-	filler_t *filler = bdev_readpage;
+	filler_t *filler = bdev_filler;
 
 	*ofs = 0;
 	return read_cache_page(mapping, 0, filler, sb);
@@ -256,7 +260,7 @@ static struct page *bdev_find_last_sb(struct super_block *sb, u64 *ofs)
 {
 	struct logfs_super *super = logfs_super(sb);
 	struct address_space *mapping = super->s_mapping_inode->i_mapping;
-	filler_t *filler = bdev_readpage;
+	filler_t *filler = bdev_filler;
 	u64 pos = (super->s_bdev->bd_inode->i_size & ~0xfffULL) - 0x1000;
 	pgoff_t index = pos >> PAGE_SHIFT;
 
@@ -287,6 +291,7 @@ static const struct logfs_device_ops bd_devops = {
 	.find_last_sb	= bdev_find_last_sb,
 	.write_sb	= bdev_write_sb,
 	.readpage	= bdev_readpage,
+	.filler		= bdev_filler,
 	.writeseg	= bdev_writeseg,
 	.erase		= bdev_erase,
 	.can_write_buf	= bdev_can_write_buf,
diff --git a/fs/logfs/dev_mtd.c b/fs/logfs/dev_mtd.c
index b76a62b..317c6ff 100644
--- a/fs/logfs/dev_mtd.c
+++ b/fs/logfs/dev_mtd.c
@@ -122,9 +122,8 @@ static void logfs_mtd_sync(struct super_block *sb)
 	mtd_sync(mtd);
 }
 
-static int logfs_mtd_readpage(void *_sb, struct page *page)
+static int logfs_mtd_readpage(struct super_block *sb, struct page *page)
 {
-	struct super_block *sb = _sb;
 	int err;
 
 	err = logfs_mtd_read(sb, page->index << PAGE_SHIFT, PAGE_SIZE,
@@ -145,11 +144,16 @@ static int logfs_mtd_readpage(void *_sb, struct page *page)
 	return err;
 }
 
+static int logfs_mtd_filler(struct file *file, struct page *page)
+{
+	return logfs_mtd_readpage((struct super_block *)file, page);
+}
+
 static struct page *logfs_mtd_find_first_sb(struct super_block *sb, u64 *ofs)
 {
 	struct logfs_super *super = logfs_super(sb);
 	struct address_space *mapping = super->s_mapping_inode->i_mapping;
-	filler_t *filler = logfs_mtd_readpage;
+	filler_t *filler = logfs_mtd_filler;
 	struct mtd_info *mtd = super->s_mtd;
 
 	*ofs = 0;
@@ -166,7 +170,7 @@ static struct page *logfs_mtd_find_last_sb(struct super_block *sb, u64 *ofs)
 {
 	struct logfs_super *super = logfs_super(sb);
 	struct address_space *mapping = super->s_mapping_inode->i_mapping;
-	filler_t *filler = logfs_mtd_readpage;
+	filler_t *filler = logfs_mtd_filler;
 	struct mtd_info *mtd = super->s_mtd;
 
 	*ofs = mtd->size - mtd->erasesize;
@@ -254,6 +258,7 @@ static const struct logfs_device_ops mtd_devops = {
 	.find_first_sb	= logfs_mtd_find_first_sb,
 	.find_last_sb	= logfs_mtd_find_last_sb,
 	.readpage	= logfs_mtd_readpage,
+	.filler		= logfs_mtd_filler,
 	.writeseg	= logfs_mtd_writeseg,
 	.erase		= logfs_mtd_erase,
 	.can_write_buf	= logfs_mtd_can_write_buf,
diff --git a/fs/logfs/dir.c b/fs/logfs/dir.c
index ddbed2b..4267e7c 100644
--- a/fs/logfs/dir.c
+++ b/fs/logfs/dir.c
@@ -174,7 +174,7 @@ static struct page *logfs_get_dd_page(struct inode *dir, struct dentry *dentry)
 		if (!logfs_exist_block(dir, index))
 			continue;
 		page = read_cache_page(dir->i_mapping, index,
-				(filler_t *)logfs_readpage, NULL);
+				logfs_readpage, NULL);
 		if (IS_ERR(page))
 			return page;
 		dd = kmap_atomic(page);
@@ -306,7 +306,7 @@ static int logfs_readdir(struct file *file, struct dir_context *ctx)
 			continue;
 		}
 		page = read_cache_page(dir->i_mapping, pos,
-				(filler_t *)logfs_readpage, NULL);
+				logfs_readpage, NULL);
 		if (IS_ERR(page))
 			return PTR_ERR(page);
 		dd = kmap(page);
diff --git a/fs/logfs/logfs.h b/fs/logfs/logfs.h
index 27d040e..8959149 100644
--- a/fs/logfs/logfs.h
+++ b/fs/logfs/logfs.h
@@ -151,7 +151,8 @@ struct logfs_device_ops {
 	struct page *(*find_first_sb)(struct super_block *sb, u64 *ofs);
 	struct page *(*find_last_sb)(struct super_block *sb, u64 *ofs);
 	int (*write_sb)(struct super_block *sb, struct page *page);
-	int (*readpage)(void *_sb, struct page *page);
+	int (*readpage)(struct super_block *sb, struct page *page);
+	int (*filler)(struct file *file, struct page *page);
 	void (*writeseg)(struct super_block *sb, u64 ofs, size_t len);
 	int (*erase)(struct super_block *sb, loff_t ofs, size_t len,
 			int ensure_write);
@@ -617,8 +618,6 @@ static inline int logfs_buf_recover(struct logfs_area *area, u64 ofs,
 }
 
 /* super.c */
-struct page *emergency_read_begin(struct address_space *mapping, pgoff_t index);
-void emergency_read_end(struct page *page);
 void logfs_crash_dump(struct super_block *sb);
 int logfs_statfs(struct dentry *dentry, struct kstatfs *stats);
 int logfs_check_ds(struct logfs_disk_super *ds);
diff --git a/fs/logfs/readwrite.c b/fs/logfs/readwrite.c
index 3fb8c6d..83a5133 100644
--- a/fs/logfs/readwrite.c
+++ b/fs/logfs/readwrite.c
@@ -1963,7 +1963,7 @@ int logfs_read_inode(struct inode *inode)
 		return -ENODATA;
 
 	page = read_cache_page(master_inode->i_mapping, ino,
-			(filler_t *)logfs_readpage, NULL);
+			logfs_readpage, NULL);
 	if (IS_ERR(page))
 		return PTR_ERR(page);
 
diff --git a/fs/logfs/segment.c b/fs/logfs/segment.c
index 1efd605..d712407b 100644
--- a/fs/logfs/segment.c
+++ b/fs/logfs/segment.c
@@ -54,7 +54,7 @@ static struct page *get_mapping_page(struct super_block *sb, pgoff_t index,
 {
 	struct logfs_super *super = logfs_super(sb);
 	struct address_space *mapping = super->s_mapping_inode->i_mapping;
-	filler_t *filler = super->s_devops->readpage;
+	filler_t *filler = super->s_devops->filler;
 	struct page *page;
 
 	BUG_ON(mapping_gfp_constraint(mapping, __GFP_FS));
diff --git a/fs/logfs/super.c b/fs/logfs/super.c
index 5751082..7619dac 100644
--- a/fs/logfs/super.c
+++ b/fs/logfs/super.c
@@ -18,39 +18,6 @@
 #include <linux/statfs.h>
 #include <linux/buffer_head.h>
 
-static DEFINE_MUTEX(emergency_mutex);
-static struct page *emergency_page;
-
-struct page *emergency_read_begin(struct address_space *mapping, pgoff_t index)
-{
-	filler_t *filler = (filler_t *)mapping->a_ops->readpage;
-	struct page *page;
-	int err;
-
-	page = read_cache_page(mapping, index, filler, NULL);
-	if (page)
-		return page;
-
-	/* No more pages available, switch to emergency page */
-	printk(KERN_INFO"Logfs: Using emergency page\n");
-	mutex_lock(&emergency_mutex);
-	err = filler(NULL, emergency_page);
-	if (err) {
-		mutex_unlock(&emergency_mutex);
-		printk(KERN_EMERG"Logfs: Error reading emergency page\n");
-		return ERR_PTR(err);
-	}
-	return emergency_page;
-}
-
-void emergency_read_end(struct page *page)
-{
-	if (page == emergency_page)
-		mutex_unlock(&emergency_mutex);
-	else
-		put_page(page);
-}
-
 static void dump_segfile(struct super_block *sb)
 {
 	struct logfs_super *super = logfs_super(sb);
@@ -614,10 +581,6 @@ static int __init logfs_init(void)
 {
 	int ret;
 
-	emergency_page = alloc_pages(GFP_KERNEL, 0);
-	if (!emergency_page)
-		return -ENOMEM;
-
 	ret = logfs_compr_init();
 	if (ret)
 		goto out1;
@@ -633,7 +596,6 @@ static int __init logfs_init(void)
 out2:
 	logfs_compr_exit();
 out1:
-	__free_pages(emergency_page, 0);
 	return ret;
 }
 
@@ -642,7 +604,6 @@ static void __exit logfs_exit(void)
 	unregister_filesystem(&logfs_fs_type);
 	logfs_destroy_inode_cache();
 	logfs_compr_exit();
-	__free_pages(emergency_page, 0);
 }
 
 module_init(logfs_init);
diff --git a/fs/mount.h b/fs/mount.h
index 14db05d..687f6d8 100644
--- a/fs/mount.h
+++ b/fs/mount.h
@@ -13,7 +13,7 @@ struct mnt_namespace {
 	u64			seq;	/* Sequence number to prevent loops */
 	wait_queue_head_t poll;
 	u64 event;
-};
+} __randomize_layout;
 
 struct mnt_pcp {
 	int mnt_count;
@@ -65,7 +65,7 @@ struct mount {
 	struct hlist_head mnt_pins;
 	struct fs_pin mnt_umount;
 	struct dentry *mnt_ex_mountpoint;
-};
+} __randomize_layout;
 
 #define MNT_NS_INTERNAL ERR_PTR(-EINVAL) /* distinct from any mnt_namespace */
 
diff --git a/fs/namei.c b/fs/namei.c
index 30145f8..ddb7af4 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -336,17 +336,32 @@ int generic_permission(struct inode *inode, int mask)
 	if (ret != -EACCES)
 		return ret;
 
+#ifdef CONFIG_GRKERNSEC
+	/* we'll block if we have to log due to a denied capability use */
+	if (mask & MAY_NOT_BLOCK)
+		return -ECHILD;
+#endif
+
 	if (S_ISDIR(inode->i_mode)) {
 		/* DACs are overridable for directories */
-		if (capable_wrt_inode_uidgid(inode, CAP_DAC_OVERRIDE))
-			return 0;
 		if (!(mask & MAY_WRITE))
-			if (capable_wrt_inode_uidgid(inode,
-						     CAP_DAC_READ_SEARCH))
+			if (capable_wrt_inode_uidgid_nolog(inode, CAP_DAC_OVERRIDE) ||
+			    capable_wrt_inode_uidgid(inode, CAP_DAC_READ_SEARCH))
 				return 0;
+		if (capable_wrt_inode_uidgid(inode, CAP_DAC_OVERRIDE))
+			return 0;
 		return -EACCES;
 	}
 	/*
+	 * Searching includes executable on directories, else just read.
+	 */
+	mask &= MAY_READ | MAY_WRITE | MAY_EXEC;
+	if (mask == MAY_READ)
+		if (capable_wrt_inode_uidgid_nolog(inode, CAP_DAC_OVERRIDE) ||
+		    capable_wrt_inode_uidgid(inode, CAP_DAC_READ_SEARCH))
+			return 0;
+
+	/*
 	 * Read/write DACs are always overridable.
 	 * Executable DACs are overridable when there is
 	 * at least one exec bit set.
@@ -355,14 +370,6 @@ int generic_permission(struct inode *inode, int mask)
 		if (capable_wrt_inode_uidgid(inode, CAP_DAC_OVERRIDE))
 			return 0;
 
-	/*
-	 * Searching includes executable on directories, else just read.
-	 */
-	mask &= MAY_READ | MAY_WRITE | MAY_EXEC;
-	if (mask == MAY_READ)
-		if (capable_wrt_inode_uidgid(inode, CAP_DAC_READ_SEARCH))
-			return 0;
-
 	return -EACCES;
 }
 EXPORT_SYMBOL(generic_permission);
@@ -514,12 +521,35 @@ struct nameidata {
 	struct inode	*link_inode;
 	unsigned	root_seq;
 	int		dfd;
-};
+#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
+	struct path	*symlinkown_stack;
+	struct path 	symlinkown_internal[EMBEDDED_LEVELS];
+	unsigned	symlinkown_depth;
+	int		symlinkown_enabled;
+#endif
+} __randomize_layout;
+
+static int gr_handle_nameidata_symlinkowner(const struct nameidata *nd, const struct inode *target)
+{
+#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
+	int i;
+
+	for (i = 0; i < nd->symlinkown_depth; i++) {
+		if (gr_handle_symlink_owner(&nd->symlinkown_stack[i], target))
+			return -EACCES;
+	}
+#endif
+	return 0;
+}
 
 static void set_nameidata(struct nameidata *p, int dfd, struct filename *name)
 {
 	struct nameidata *old = current->nameidata;
 	p->stack = p->internal;
+#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
+	p->symlinkown_stack = p->symlinkown_internal;
+	p->symlinkown_enabled = -1;
+#endif
 	p->dfd = dfd;
 	p->name = name;
 	p->total_link_count = old ? old->total_link_count : 0;
@@ -536,6 +566,10 @@ static void restore_nameidata(void)
 		old->total_link_count = now->total_link_count;
 	if (now->stack != now->internal)
 		kfree(now->stack);
+#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
+	if (now->symlinkown_stack != now->symlinkown_internal)
+		kfree(now->symlinkown_stack);
+#endif
 }
 
 static int __nd_alloc_stack(struct nameidata *nd)
@@ -555,6 +589,7 @@ static int __nd_alloc_stack(struct nameidata *nd)
 	}
 	memcpy(p, nd->internal, sizeof(nd->internal));
 	nd->stack = p;
+
 	return 0;
 }
 
@@ -576,8 +611,32 @@ static bool path_connected(const struct path *path)
 	return is_subdir(path->dentry, mnt->mnt_root);
 }
 
+#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
+static int nd_alloc_symlinkown_stack(struct nameidata *nd)
+{
+	struct path *p;
+
+	if (likely(nd->symlinkown_depth != EMBEDDED_LEVELS))
+		return 0;
+	if (nd->symlinkown_stack != nd->symlinkown_internal)
+		return 0;
+
+	p = kmalloc(MAXSYMLINKS * sizeof(struct path), GFP_KERNEL);
+	if (unlikely(!p))
+		return -ENOMEM;
+	memcpy(p, nd->symlinkown_internal, sizeof(nd->symlinkown_internal));
+	nd->symlinkown_stack = p;
+	return 0;
+}
+#endif
+
 static inline int nd_alloc_stack(struct nameidata *nd)
 {
+#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
+	if (nd->flags & LOOKUP_RCU)
+		return -ECHILD;
+#endif
+
 	if (likely(nd->depth != EMBEDDED_LEVELS))
 		return 0;
 	if (likely(nd->stack != nd->internal))
@@ -603,6 +662,14 @@ static void terminate_walk(struct nameidata *nd)
 		path_put(&nd->path);
 		for (i = 0; i < nd->depth; i++)
 			path_put(&nd->stack[i].link);
+
+#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
+	/* we'll only ever set our values in ref-walk mode */
+		for (i = 0; i < nd->symlinkown_depth; i++)
+			path_put(&nd->symlinkown_stack[i]);
+		nd->symlinkown_depth = 0;
+#endif
+
 		if (nd->root.mnt && !(nd->flags & LOOKUP_ROOT)) {
 			path_put(&nd->root);
 			nd->root.mnt = NULL;
@@ -1014,6 +1081,9 @@ const char *get_link(struct nameidata *nd)
 	if (unlikely(error))
 		return ERR_PTR(error);
 
+	if (gr_handle_follow_link(dentry, last->link.mnt))
+		return ERR_PTR(-EACCES);
+
 	nd->last_type = LAST_BIND;
 	res = inode->i_link;
 	if (!res) {
@@ -1683,6 +1753,23 @@ static int pick_link(struct nameidata *nd, struct path *link,
 		}
 	}
 
+#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
+	if (unlikely(nd->symlinkown_enabled == -1))
+		nd->symlinkown_enabled = gr_get_symlinkown_enabled();
+	if (nd->symlinkown_enabled && gr_is_global_nonroot(inode->i_uid)) {
+		struct path *symlinkownlast;
+		error = nd_alloc_symlinkown_stack(nd);
+		if (unlikely(error)) {
+			path_put(link);
+			return error;
+		}
+		symlinkownlast = nd->symlinkown_stack + nd->symlinkown_depth++;
+		symlinkownlast->dentry = link->dentry;
+		symlinkownlast->mnt = link->mnt;
+		path_get(symlinkownlast);
+	}
+#endif
+
 	last = nd->stack + nd->depth++;
 	last->link = *link;
 	clear_delayed_call(&last->done);
@@ -1830,7 +1917,7 @@ EXPORT_SYMBOL(full_name_hash);
 static inline u64 hash_name(const char *name)
 {
 	unsigned long a, b, adata, bdata, mask, hash, len;
-	const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
+	static const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
 
 	hash = a = 0;
 	len = -sizeof(unsigned long);
@@ -1998,6 +2085,10 @@ static const char *path_init(struct nameidata *nd, unsigned flags)
 	nd->last_type = LAST_ROOT; /* if there are only slashes... */
 	nd->flags = flags | LOOKUP_JUMPED | LOOKUP_PARENT;
 	nd->depth = 0;
+#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
+	nd->symlinkown_depth = 0;
+#endif
+
 	if (flags & LOOKUP_ROOT) {
 		struct dentry *root = nd->root.dentry;
 		struct inode *inode = root->d_inode;
@@ -2129,6 +2220,14 @@ static int path_lookupat(struct nameidata *nd, unsigned flags, struct path *path
 	if (!err)
 		err = complete_walk(nd);
 
+	if (!err && !(nd->flags & LOOKUP_PARENT)) {
+		if (!gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt))
+			err = -ENOENT;
+		if (!err)
+			err = gr_chroot_pathat(nd->dfd, nd->path.dentry,
+						nd->path.mnt, nd->flags);
+	}
+
 	if (!err && nd->flags & LOOKUP_DIRECTORY)
 		if (!d_can_lookup(nd->path.dentry))
 			err = -ENOTDIR;
@@ -2177,6 +2276,14 @@ static int path_parentat(struct nameidata *nd, unsigned flags,
 	err = link_path_walk(s, nd);
 	if (!err)
 		err = complete_walk(nd);
+
+	if (!err && gr_handle_nameidata_symlinkowner(nd, nd->inode))
+		err = -EACCES;
+
+	if (!err)
+		err = gr_chroot_pathat(nd->dfd, nd->path.dentry,
+					nd->path.mnt, nd->flags);
+
 	if (!err) {
 		*parent = nd->path;
 		nd->path.mnt = NULL;
@@ -2776,6 +2883,13 @@ static int may_open(struct path *path, int acc_mode, int flag)
 	if (flag & O_NOATIME && !inode_owner_or_capable(inode))
 		return -EPERM;
 
+	if (gr_handle_rofs_blockwrite(dentry, path->mnt, acc_mode))
+		return -EPERM;
+	if (gr_handle_rawio(inode))
+		return -EPERM;
+	if (!gr_acl_handle_open(dentry, path->mnt, acc_mode))
+		return -EACCES;
+
 	return 0;
 }
 
@@ -3036,6 +3150,21 @@ static int lookup_open(struct nameidata *nd, struct path *path,
 	/* Negative dentry, just create the file */
 	if (!dentry->d_inode && (op->open_flag & O_CREAT)) {
 		umode_t mode = op->mode;
+
+		error = gr_chroot_pathat(nd->dfd, dentry, nd->path.mnt, nd->flags);
+		if (error)
+			goto out_dput;
+
+		if (gr_handle_nameidata_symlinkowner(nd, dir_inode)) {
+			error = -EACCES;
+			goto out_dput;
+		}
+
+		if (!gr_acl_handle_creat(dentry, dir, nd->path.mnt, op->open_flag, op->acc_mode, mode)) {
+			error = -EACCES;
+			goto out_dput;
+		}
+
 		if (!IS_POSIXACL(dir->d_inode))
 			mode &= ~current_umask();
 		/*
@@ -3057,6 +3186,8 @@ static int lookup_open(struct nameidata *nd, struct path *path,
 				   nd->flags & LOOKUP_EXCL);
 		if (error)
 			goto out_dput;
+		else
+			gr_handle_create(dentry, nd->path.mnt);
 	}
 out_no_open:
 	path->dentry = dentry;
@@ -3163,6 +3294,11 @@ retry_lookup:
 		goto finish_open_created;
 	}
 
+	if (!gr_acl_handle_hidden_file(path.dentry, nd->path.mnt)) {
+		path_to_nameidata(&path, nd);
+		return -ENOENT;
+	}
+
 	/*
 	 * If atomic_open() acquired write access it is dropped now due to
 	 * possible mount and symlink following (this might be optimized away if
@@ -3178,6 +3314,13 @@ retry_lookup:
 		return -ENOENT;
 	}
 
+	/* only check if O_CREAT is specified, all other checks need to go
+	   into may_open */
+	if (gr_handle_fifo(path.dentry, path.mnt, dir, open_flag, acc_mode)) {
+		path_to_nameidata(&path, nd);
+		return -EACCES;
+	}
+
 	/*
 	 * create/update audit record if it already exists.
 	 */
@@ -3219,6 +3362,21 @@ finish_open:
 		path_put(&save_parent);
 		return error;
 	}
+
+	if (!gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt)) {
+		error = -ENOENT;
+		goto out;
+	}
+
+	error = gr_chroot_pathat(nd->dfd, nd->path.dentry, nd->path.mnt, nd->flags);
+	if (error)
+		goto out;
+
+	if (gr_handle_nameidata_symlinkowner(nd, nd->inode)) {
+		error = -EACCES;
+		goto out;
+	}
+
 	audit_inode(nd->name, nd->path.dentry, 0);
 	if (unlikely(d_is_symlink(nd->path.dentry)) && !(open_flag & O_PATH)) {
 		error = -ELOOP;
@@ -3494,9 +3652,11 @@ static struct dentry *filename_create(int dfd, struct filename *name,
 		goto unlock;
 
 	error = -EEXIST;
-	if (d_is_positive(dentry))
+	if (d_is_positive(dentry)) {
+		if (!gr_acl_handle_hidden_file(dentry, path->mnt))
+			error = -ENOENT;
 		goto fail;
-
+	}
 	/*
 	 * Special case - lookup gave negative, but... we had foo/bar/
 	 * From the vfs_mknod() POV we just have a negative dentry -
@@ -3550,6 +3710,20 @@ inline struct dentry *user_path_create(int dfd, const char __user *pathname,
 }
 EXPORT_SYMBOL(user_path_create);
 
+static struct dentry *user_path_create_with_name(int dfd, const char __user *pathname, struct path *path, struct filename **to, unsigned int lookup_flags)
+{
+	struct filename *tmp = getname(pathname);
+	struct dentry *res;
+	if (IS_ERR(tmp))
+		return ERR_CAST(tmp);
+	res = kern_path_create(dfd, tmp->name, path, lookup_flags);
+	if (IS_ERR(res))
+		putname(tmp);
+	else
+		*to = tmp;
+	return res;
+}
+
 int vfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
 {
 	int error = may_create(dir, dentry);
@@ -3613,6 +3787,17 @@ retry:
 
 	if (!IS_POSIXACL(path.dentry->d_inode))
 		mode &= ~current_umask();
+
+	if (gr_handle_chroot_mknod(dentry, path.mnt, mode)) {
+		error = -EPERM;
+		goto out;
+	}
+
+	if (!gr_acl_handle_mknod(dentry, path.dentry, path.mnt, mode)) {
+		error = -EACCES;
+		goto out;
+	}
+
 	error = security_path_mknod(&path, dentry, mode, dev);
 	if (error)
 		goto out;
@@ -3628,6 +3813,8 @@ retry:
 			error = vfs_mknod(path.dentry->d_inode,dentry,mode,0);
 			break;
 	}
+	if (!error)
+		gr_handle_create(dentry, path.mnt);
 out:
 	done_path_create(&path, dentry);
 	if (retry_estale(error, lookup_flags)) {
@@ -3682,9 +3869,16 @@ retry:
 
 	if (!IS_POSIXACL(path.dentry->d_inode))
 		mode &= ~current_umask();
+	if (!gr_acl_handle_mkdir(dentry, path.dentry, path.mnt)) {
+		error = -EACCES;
+		goto out;
+	}
 	error = security_path_mkdir(&path, dentry, mode);
 	if (!error)
 		error = vfs_mkdir(path.dentry->d_inode, dentry, mode);
+	if (!error)
+		gr_handle_create(dentry, path.mnt);
+out:
 	done_path_create(&path, dentry);
 	if (retry_estale(error, lookup_flags)) {
 		lookup_flags |= LOOKUP_REVAL;
@@ -3745,6 +3939,8 @@ static long do_rmdir(int dfd, const char __user *pathname)
 	struct path path;
 	struct qstr last;
 	int type;
+	u64 saved_ino = 0;
+	dev_t saved_dev = 0;
 	unsigned int lookup_flags = 0;
 retry:
 	name = user_path_parent(dfd, pathname,
@@ -3777,10 +3973,20 @@ retry:
 		error = -ENOENT;
 		goto exit3;
 	}
+	saved_ino = gr_get_ino_from_dentry(dentry);
+	saved_dev = gr_get_dev_from_dentry(dentry);
+
+	if (!gr_acl_handle_rmdir(dentry, path.mnt)) {
+		error = -EACCES;
+		goto exit3;
+	}
+
 	error = security_path_rmdir(&path, dentry);
 	if (error)
 		goto exit3;
 	error = vfs_rmdir(path.dentry->d_inode, dentry);
+	if (!error && (saved_dev || saved_ino))
+		gr_handle_delete(saved_ino, saved_dev);
 exit3:
 	dput(dentry);
 exit2:
@@ -3875,6 +4081,8 @@ static long do_unlinkat(int dfd, const char __user *pathname)
 	int type;
 	struct inode *inode = NULL;
 	struct inode *delegated_inode = NULL;
+	u64 saved_ino = 0;
+	dev_t saved_dev = 0;
 	unsigned int lookup_flags = 0;
 retry:
 	name = user_path_parent(dfd, pathname,
@@ -3901,10 +4109,21 @@ retry_deleg:
 		if (d_is_negative(dentry))
 			goto slashes;
 		ihold(inode);
+		if (inode->i_nlink <= 1) {
+			saved_ino = gr_get_ino_from_dentry(dentry);
+			saved_dev = gr_get_dev_from_dentry(dentry);
+		}
+		if (!gr_acl_handle_unlink(dentry, path.mnt)) {
+			error = -EACCES;
+			goto exit2;
+		}
+
 		error = security_path_unlink(&path, dentry);
 		if (error)
 			goto exit2;
 		error = vfs_unlink(path.dentry->d_inode, dentry, &delegated_inode);
+		if (!error && (saved_ino || saved_dev))
+			gr_handle_delete(saved_ino, saved_dev);
 exit2:
 		dput(dentry);
 	}
@@ -3993,9 +4212,17 @@ retry:
 	if (IS_ERR(dentry))
 		goto out_putname;
 
+	if (!gr_acl_handle_symlink(dentry, path.dentry, path.mnt, from)) {
+		error = -EACCES;
+		goto out;
+	}
+
 	error = security_path_symlink(&path, dentry, from->name);
 	if (!error)
 		error = vfs_symlink(path.dentry->d_inode, dentry, from->name);
+	if (!error)
+		gr_handle_create(dentry, path.mnt);
+out:
 	done_path_create(&path, dentry);
 	if (retry_estale(error, lookup_flags)) {
 		lookup_flags |= LOOKUP_REVAL;
@@ -4099,6 +4326,7 @@ SYSCALL_DEFINE5(linkat, int, olddfd, const char __user *, oldname,
 	struct dentry *new_dentry;
 	struct path old_path, new_path;
 	struct inode *delegated_inode = NULL;
+	struct filename *to = NULL;
 	int how = 0;
 	int error;
 
@@ -4122,7 +4350,7 @@ retry:
 	if (error)
 		return error;
 
-	new_dentry = user_path_create(newdfd, newname, &new_path,
+	new_dentry = user_path_create_with_name(newdfd, newname, &new_path, &to,
 					(how & LOOKUP_REVAL));
 	error = PTR_ERR(new_dentry);
 	if (IS_ERR(new_dentry))
@@ -4134,11 +4362,26 @@ retry:
 	error = may_linkat(&old_path);
 	if (unlikely(error))
 		goto out_dput;
+
+	if (gr_handle_hardlink(old_path.dentry, old_path.mnt, to)) {
+		error = -EACCES;
+		goto out_dput;
+	}
+
+	if (!gr_acl_handle_link(new_dentry, new_path.dentry, new_path.mnt,
+				old_path.dentry, old_path.mnt, to)) {
+		error = -EACCES;
+		goto out_dput;
+	}
+
 	error = security_path_link(old_path.dentry, &new_path, new_dentry);
 	if (error)
 		goto out_dput;
 	error = vfs_link(old_path.dentry, new_path.dentry->d_inode, new_dentry, &delegated_inode);
+	if (!error)
+		gr_handle_create(new_dentry, new_path.mnt);
 out_dput:
+	putname(to);
 	done_path_create(&new_path, new_dentry);
 	if (delegated_inode) {
 		error = break_deleg_wait(&delegated_inode);
@@ -4457,6 +4700,20 @@ retry_deleg:
 	if (new_dentry == trap)
 		goto exit5;
 
+	if (gr_bad_chroot_rename(old_dentry, old_path.mnt, new_dentry, new_path.mnt)) {
+		/* use EXDEV error to cause 'mv' to switch to an alternative
+		 * method for usability
+		 */
+		error = -EXDEV;
+		goto exit5;
+	}
+
+	error = gr_acl_handle_rename(new_dentry, new_path.dentry, new_path.mnt,
+				     old_dentry, d_backing_inode(old_path.dentry), old_path.mnt,
+				     to, flags);
+	if (error)
+		goto exit5;
+
 	error = security_path_rename(&old_path, old_dentry,
 				     &new_path, new_dentry, flags);
 	if (error)
@@ -4464,6 +4721,9 @@ retry_deleg:
 	error = vfs_rename(old_path.dentry->d_inode, old_dentry,
 			   new_path.dentry->d_inode, new_dentry,
 			   &delegated_inode, flags);
+	if (!error)
+		gr_handle_rename(d_backing_inode(old_path.dentry), d_backing_inode(new_path.dentry), old_dentry,
+				 new_dentry, old_path.mnt, d_is_positive(new_dentry) ? 1 : 0, flags);
 exit5:
 	dput(new_dentry);
 exit4:
@@ -4520,14 +4780,24 @@ EXPORT_SYMBOL(vfs_whiteout);
 
 int readlink_copy(char __user *buffer, int buflen, const char *link)
 {
+	char tmpbuf[64];
+	const char *newlink;
 	int len = PTR_ERR(link);
+
 	if (IS_ERR(link))
 		goto out;
 
 	len = strlen(link);
 	if (len > (unsigned) buflen)
 		len = buflen;
-	if (copy_to_user(buffer, link, len))
+
+	if (len < sizeof(tmpbuf)) {
+		memcpy(tmpbuf, link, len);
+		newlink = tmpbuf;
+	} else
+		newlink = link;
+
+	if (copy_to_user(buffer, newlink, len))
 		len = -EFAULT;
 out:
 	return len;
diff --git a/fs/namespace.c b/fs/namespace.c
index 4fb1691..3077a5c 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1516,6 +1516,9 @@ static int do_umount(struct mount *mnt, int flags)
 		if (!(sb->s_flags & MS_RDONLY))
 			retval = do_remount_sb(sb, MS_RDONLY, NULL, 0);
 		up_write(&sb->s_umount);
+
+		gr_log_remount(mnt->mnt_devname, retval);
+
 		return retval;
 	}
 
@@ -1538,6 +1541,9 @@ static int do_umount(struct mount *mnt, int flags)
 	}
 	unlock_mount_hash();
 	namespace_unlock();
+
+	gr_log_unmount(mnt->mnt_devname, retval);
+
 	return retval;
 }
 
@@ -1600,7 +1606,7 @@ static inline bool may_mandlock(void)
  * unixes. Our API is identical to OSF/1 to avoid making a mess of AMD
  */
 
-SYSCALL_DEFINE2(umount, char __user *, name, int, flags)
+SYSCALL_DEFINE2(umount, const char __user *, name, int, flags)
 {
 	struct path path;
 	struct mount *mnt;
@@ -1645,7 +1651,7 @@ out:
 /*
  *	The 2.0 compatible umount. No flags.
  */
-SYSCALL_DEFINE1(oldumount, char __user *, name)
+SYSCALL_DEFINE1(oldumount, const char __user *, name)
 {
 	return sys_umount(name, 0);
 }
@@ -2721,6 +2727,16 @@ long do_mount(const char *dev_name, const char __user *dir_name,
 		   MS_NOATIME | MS_NODIRATIME | MS_RELATIME| MS_KERNMOUNT |
 		   MS_STRICTATIME);
 
+	if (gr_handle_rofs_mount(path.dentry, path.mnt, mnt_flags)) {
+		retval = -EPERM;
+		goto dput_out;
+	}
+
+	if (gr_handle_chroot_mount(path.dentry, path.mnt, dev_name)) {
+		retval = -EPERM;
+		goto dput_out;
+	}
+
 	if (flags & MS_REMOUNT)
 		retval = do_remount(&path, flags & ~MS_REMOUNT, mnt_flags,
 				    data_page);
@@ -2734,7 +2750,10 @@ long do_mount(const char *dev_name, const char __user *dir_name,
 		retval = do_new_mount(&path, type_page, flags, mnt_flags,
 				      dev_name, data_page);
 dput_out:
+	gr_log_mount(dev_name, &path, retval);
+
 	path_put(&path);
+
 	return retval;
 }
 
@@ -2752,7 +2771,7 @@ static void free_mnt_ns(struct mnt_namespace *ns)
  * number incrementing at 10Ghz will take 12,427 years to wrap which
  * is effectively never, so we can ignore the possibility.
  */
-static atomic64_t mnt_ns_seq = ATOMIC64_INIT(1);
+static atomic64_unchecked_t mnt_ns_seq = ATOMIC64_INIT(1);
 
 static struct mnt_namespace *alloc_mnt_ns(struct user_namespace *user_ns)
 {
@@ -2768,7 +2787,7 @@ static struct mnt_namespace *alloc_mnt_ns(struct user_namespace *user_ns)
 		return ERR_PTR(ret);
 	}
 	new_ns->ns.ops = &mntns_operations;
-	new_ns->seq = atomic64_add_return(1, &mnt_ns_seq);
+	new_ns->seq = atomic64_add_return_unchecked(1, &mnt_ns_seq);
 	atomic_set(&new_ns->count, 1);
 	new_ns->root = NULL;
 	INIT_LIST_HEAD(&new_ns->list);
@@ -2778,6 +2797,7 @@ static struct mnt_namespace *alloc_mnt_ns(struct user_namespace *user_ns)
 	return new_ns;
 }
 
+__latent_entropy
 struct mnt_namespace *copy_mnt_ns(unsigned long flags, struct mnt_namespace *ns,
 		struct user_namespace *user_ns, struct fs_struct *new_fs)
 {
@@ -2899,8 +2919,8 @@ struct dentry *mount_subtree(struct vfsmount *mnt, const char *name)
 }
 EXPORT_SYMBOL(mount_subtree);
 
-SYSCALL_DEFINE5(mount, char __user *, dev_name, char __user *, dir_name,
-		char __user *, type, unsigned long, flags, void __user *, data)
+SYSCALL_DEFINE5(mount, const char __user *, dev_name, const char __user *, dir_name,
+		const char __user *, type, unsigned long, flags, void __user *, data)
 {
 	int ret;
 	char *kernel_type;
@@ -3006,6 +3026,11 @@ SYSCALL_DEFINE2(pivot_root, const char __user *, new_root,
 	if (error)
 		goto out2;
 
+	if (gr_handle_chroot_pivot()) {
+		error = -EPERM;
+		goto out2;
+	}
+
 	get_fs_root(current->fs, &root);
 	old_mp = lock_mount(&old);
 	error = PTR_ERR(old_mp);
@@ -3324,7 +3349,7 @@ static int mntns_install(struct nsproxy *nsproxy, struct ns_common *ns)
 	    !ns_capable(current_user_ns(), CAP_SYS_ADMIN))
 		return -EPERM;
 
-	if (fs->users != 1)
+	if (atomic_read(&fs->users) != 1)
 		return -EINVAL;
 
 	get_mnt_ns(mnt_ns);
diff --git a/fs/nfs/callback.h b/fs/nfs/callback.h
index 5fe1cec..d0f4ac0 100644
--- a/fs/nfs/callback.h
+++ b/fs/nfs/callback.h
@@ -114,8 +114,8 @@ struct cb_sequenceres {
 	uint32_t			csr_target_highestslotid;
 };
 
-extern __be32 nfs4_callback_sequence(struct cb_sequenceargs *args,
-				       struct cb_sequenceres *res,
+extern __be32 nfs4_callback_sequence(void *_args,
+				       void *_res,
 				       struct cb_process_state *cps);
 
 #define RCA4_TYPE_MASK_RDATA_DLG	0
@@ -134,14 +134,14 @@ struct cb_recallanyargs {
 	uint32_t	craa_type_mask;
 };
 
-extern __be32 nfs4_callback_recallany(struct cb_recallanyargs *args,
+extern __be32 nfs4_callback_recallany(void *_args,
 					void *dummy,
 					struct cb_process_state *cps);
 
 struct cb_recallslotargs {
 	uint32_t	crsa_target_highest_slotid;
 };
-extern __be32 nfs4_callback_recallslot(struct cb_recallslotargs *args,
+extern __be32 nfs4_callback_recallslot(void *_args,
 					 void *dummy,
 					 struct cb_process_state *cps);
 
@@ -160,7 +160,7 @@ struct cb_layoutrecallargs {
 };
 
 extern __be32 nfs4_callback_layoutrecall(
-	struct cb_layoutrecallargs *args,
+	void *_args,
 	void *dummy, struct cb_process_state *cps);
 
 struct cb_devicenotifyitem {
@@ -176,15 +176,15 @@ struct cb_devicenotifyargs {
 };
 
 extern __be32 nfs4_callback_devicenotify(
-	struct cb_devicenotifyargs *args,
+	void *_args,
 	void *dummy, struct cb_process_state *cps);
 
 #endif /* CONFIG_NFS_V4_1 */
 extern int check_gss_callback_principal(struct nfs_client *, struct svc_rqst *);
-extern __be32 nfs4_callback_getattr(struct cb_getattrargs *args,
-				    struct cb_getattrres *res,
+extern __be32 nfs4_callback_getattr(void *args,
+				    void *res,
 				    struct cb_process_state *cps);
-extern __be32 nfs4_callback_recall(struct cb_recallargs *args, void *dummy,
+extern __be32 nfs4_callback_recall(void *args, void *dummy,
 				   struct cb_process_state *cps);
 #if IS_ENABLED(CONFIG_NFS_V4)
 extern int nfs_callback_up(u32 minorversion, struct rpc_xprt *xprt);
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
index 7c9fbf5..8c165b9 100644
--- a/fs/nfs/callback_proc.c
+++ b/fs/nfs/callback_proc.c
@@ -19,10 +19,12 @@
 
 #define NFSDBG_FACILITY NFSDBG_CALLBACK
 
-__be32 nfs4_callback_getattr(struct cb_getattrargs *args,
-			     struct cb_getattrres *res,
+__be32 nfs4_callback_getattr(void *_args,
+			     void *_res,
 			     struct cb_process_state *cps)
 {
+	struct cb_getattrargs *args = _args;
+	struct cb_getattrres *res = _res;
 	struct nfs_delegation *delegation;
 	struct nfs_inode *nfsi;
 	struct inode *inode;
@@ -68,9 +70,10 @@ out:
 	return res->status;
 }
 
-__be32 nfs4_callback_recall(struct cb_recallargs *args, void *dummy,
+__be32 nfs4_callback_recall(void *_args, void *dummy,
 			    struct cb_process_state *cps)
 {
+	struct cb_recallargs *args =  _args;
 	struct inode *inode;
 	__be32 res;
 	
@@ -269,7 +272,7 @@ static u32 do_callback_layoutrecall(struct nfs_client *clp,
 
 }
 
-__be32 nfs4_callback_layoutrecall(struct cb_layoutrecallargs *args,
+__be32 nfs4_callback_layoutrecall(void *args,
 				  void *dummy, struct cb_process_state *cps)
 {
 	u32 res;
@@ -296,9 +299,10 @@ static void pnfs_recall_all_layouts(struct nfs_client *clp)
 	do_callback_layoutrecall(clp, &args);
 }
 
-__be32 nfs4_callback_devicenotify(struct cb_devicenotifyargs *args,
+__be32 nfs4_callback_devicenotify(void *_args,
 				  void *dummy, struct cb_process_state *cps)
 {
+	struct cb_devicenotifyargs *args = _args;
 	int i;
 	__be32 res = 0;
 	struct nfs_client *clp = cps->clp;
@@ -443,10 +447,12 @@ out:
 	return status;
 }
 
-__be32 nfs4_callback_sequence(struct cb_sequenceargs *args,
-			      struct cb_sequenceres *res,
+__be32 nfs4_callback_sequence(void *_args,
+			      void *_res,
 			      struct cb_process_state *cps)
 {
+	struct cb_sequenceargs *args = _args;
+	struct cb_sequenceres *res = _res;
 	struct nfs4_slot_table *tbl;
 	struct nfs4_slot *slot;
 	struct nfs_client *clp;
@@ -548,9 +554,10 @@ validate_bitmap_values(unsigned long mask)
 	return (mask & ~RCA4_TYPE_MASK_ALL) == 0;
 }
 
-__be32 nfs4_callback_recallany(struct cb_recallanyargs *args, void *dummy,
+__be32 nfs4_callback_recallany(void *_args, void *dummy,
 			       struct cb_process_state *cps)
 {
+	struct cb_recallanyargs *args = _args;
 	__be32 status;
 	fmode_t flags = 0;
 
@@ -583,9 +590,10 @@ out:
 }
 
 /* Reduce the fore channel's max_slots to the target value */
-__be32 nfs4_callback_recallslot(struct cb_recallslotargs *args, void *dummy,
+__be32 nfs4_callback_recallslot(void *_args, void *dummy,
 				struct cb_process_state *cps)
 {
+	struct cb_recallslotargs *args = _args;
 	struct nfs4_slot_table *fc_tbl;
 	__be32 status;
 
diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
index 976c906..16b86ac 100644
--- a/fs/nfs/callback_xdr.c
+++ b/fs/nfs/callback_xdr.c
@@ -53,7 +53,7 @@ struct callback_op {
 	callback_decode_arg_t decode_args;
 	callback_encode_res_t encode_res;
 	long res_maxsize;
-};
+} __do_const;
 
 static struct callback_op callback_ops[];
 
@@ -62,12 +62,12 @@ static __be32 nfs4_callback_null(struct svc_rqst *rqstp, void *argp, void *resp)
 	return htonl(NFS4_OK);
 }
 
-static int nfs4_decode_void(struct svc_rqst *rqstp, __be32 *p, void *dummy)
+static int nfs4_decode_void(void *rqstp, __be32 *p, void *dummy)
 {
 	return xdr_argsize_check(rqstp, p);
 }
 
-static int nfs4_encode_void(struct svc_rqst *rqstp, __be32 *p, void *dummy)
+static int nfs4_encode_void(void *rqstp, __be32 *p, void *dummy)
 {
 	return xdr_ressize_check(rqstp, p);
 }
@@ -193,8 +193,9 @@ static __be32 decode_op_hdr(struct xdr_stream *xdr, unsigned int *op)
 	return 0;
 }
 
-static __be32 decode_getattr_args(struct svc_rqst *rqstp, struct xdr_stream *xdr, struct cb_getattrargs *args)
+static __be32 decode_getattr_args(struct svc_rqst *rqstp, struct xdr_stream *xdr, void *_args)
 {
+	struct cb_getattrargs *args = _args;
 	__be32 status;
 
 	status = decode_fh(xdr, &args->fh);
@@ -206,8 +207,9 @@ out:
 	return status;
 }
 
-static __be32 decode_recall_args(struct svc_rqst *rqstp, struct xdr_stream *xdr, struct cb_recallargs *args)
+static __be32 decode_recall_args(struct svc_rqst *rqstp, struct xdr_stream *xdr, void *_args)
 {
+	struct cb_recallargs *args = _args;
 	__be32 *p;
 	__be32 status;
 
@@ -230,8 +232,9 @@ out:
 
 static __be32 decode_layoutrecall_args(struct svc_rqst *rqstp,
 				       struct xdr_stream *xdr,
-				       struct cb_layoutrecallargs *args)
+				       void *_args)
 {
+	struct cb_layoutrecallargs *args = _args;
 	__be32 *p;
 	__be32 status = 0;
 	uint32_t iomode;
@@ -290,8 +293,9 @@ out:
 static
 __be32 decode_devicenotify_args(struct svc_rqst *rqstp,
 				struct xdr_stream *xdr,
-				struct cb_devicenotifyargs *args)
+				void *_args)
 {
+	struct cb_devicenotifyargs *args = _args;
 	__be32 *p;
 	__be32 status = 0;
 	u32 tmp;
@@ -431,8 +435,9 @@ out:
 
 static __be32 decode_cb_sequence_args(struct svc_rqst *rqstp,
 					struct xdr_stream *xdr,
-					struct cb_sequenceargs *args)
+					void *_args)
 {
+	struct cb_sequenceargs *args = _args;
 	__be32 *p;
 	int i;
 	__be32 status;
@@ -493,8 +498,9 @@ out_free:
 
 static __be32 decode_recallany_args(struct svc_rqst *rqstp,
 				      struct xdr_stream *xdr,
-				      struct cb_recallanyargs *args)
+				      void *_args)
 {
+	struct cb_recallanyargs *args = _args;
 	uint32_t bitmap[2];
 	__be32 *p, status;
 
@@ -512,8 +518,9 @@ static __be32 decode_recallany_args(struct svc_rqst *rqstp,
 
 static __be32 decode_recallslot_args(struct svc_rqst *rqstp,
 					struct xdr_stream *xdr,
-					struct cb_recallslotargs *args)
+					void *_args)
 {
+	struct cb_recallslotargs *args = _args;
 	__be32 *p;
 
 	p = read_buf(xdr, 4);
@@ -648,8 +655,9 @@ static __be32 encode_op_hdr(struct xdr_stream *xdr, uint32_t op, __be32 res)
 	return 0;
 }
 
-static __be32 encode_getattr_res(struct svc_rqst *rqstp, struct xdr_stream *xdr, const struct cb_getattrres *res)
+static __be32 encode_getattr_res(struct svc_rqst *rqstp, struct xdr_stream *xdr, void *_res)
 {
+	const struct cb_getattrres *res = _res;
 	__be32 *savep = NULL;
 	__be32 status = res->status;
 	
@@ -691,8 +699,9 @@ static __be32 encode_sessionid(struct xdr_stream *xdr,
 
 static __be32 encode_cb_sequence_res(struct svc_rqst *rqstp,
 				       struct xdr_stream *xdr,
-				       const struct cb_sequenceres *res)
+				       void *_res)
 {
+	const struct cb_sequenceres *res = _res;
 	__be32 *p;
 	__be32 status = res->csr_status;
 
@@ -952,43 +961,41 @@ static struct callback_op callback_ops[] = {
 		.res_maxsize = CB_OP_HDR_RES_MAXSZ,
 	},
 	[OP_CB_GETATTR] = {
-		.process_op = (callback_process_op_t)nfs4_callback_getattr,
-		.decode_args = (callback_decode_arg_t)decode_getattr_args,
-		.encode_res = (callback_encode_res_t)encode_getattr_res,
+		.process_op = nfs4_callback_getattr,
+		.decode_args = decode_getattr_args,
+		.encode_res = encode_getattr_res,
 		.res_maxsize = CB_OP_GETATTR_RES_MAXSZ,
 	},
 	[OP_CB_RECALL] = {
-		.process_op = (callback_process_op_t)nfs4_callback_recall,
-		.decode_args = (callback_decode_arg_t)decode_recall_args,
+		.process_op = nfs4_callback_recall,
+		.decode_args = decode_recall_args,
 		.res_maxsize = CB_OP_RECALL_RES_MAXSZ,
 	},
 #if defined(CONFIG_NFS_V4_1)
 	[OP_CB_LAYOUTRECALL] = {
-		.process_op = (callback_process_op_t)nfs4_callback_layoutrecall,
-		.decode_args =
-			(callback_decode_arg_t)decode_layoutrecall_args,
+		.process_op = nfs4_callback_layoutrecall,
+		.decode_args = decode_layoutrecall_args,
 		.res_maxsize = CB_OP_LAYOUTRECALL_RES_MAXSZ,
 	},
 	[OP_CB_NOTIFY_DEVICEID] = {
-		.process_op = (callback_process_op_t)nfs4_callback_devicenotify,
-		.decode_args =
-			(callback_decode_arg_t)decode_devicenotify_args,
+		.process_op = nfs4_callback_devicenotify,
+		.decode_args = decode_devicenotify_args,
 		.res_maxsize = CB_OP_DEVICENOTIFY_RES_MAXSZ,
 	},
 	[OP_CB_SEQUENCE] = {
-		.process_op = (callback_process_op_t)nfs4_callback_sequence,
-		.decode_args = (callback_decode_arg_t)decode_cb_sequence_args,
-		.encode_res = (callback_encode_res_t)encode_cb_sequence_res,
+		.process_op = nfs4_callback_sequence,
+		.decode_args = decode_cb_sequence_args,
+		.encode_res = encode_cb_sequence_res,
 		.res_maxsize = CB_OP_SEQUENCE_RES_MAXSZ,
 	},
 	[OP_CB_RECALL_ANY] = {
-		.process_op = (callback_process_op_t)nfs4_callback_recallany,
-		.decode_args = (callback_decode_arg_t)decode_recallany_args,
+		.process_op = nfs4_callback_recallany,
+		.decode_args = decode_recallany_args,
 		.res_maxsize = CB_OP_RECALLANY_RES_MAXSZ,
 	},
 	[OP_CB_RECALL_SLOT] = {
-		.process_op = (callback_process_op_t)nfs4_callback_recallslot,
-		.decode_args = (callback_decode_arg_t)decode_recallslot_args,
+		.process_op = nfs4_callback_recallslot,
+		.decode_args = decode_recallslot_args,
 		.res_maxsize = CB_OP_RECALLSLOT_RES_MAXSZ,
 	},
 #endif /* CONFIG_NFS_V4_1 */
@@ -1000,13 +1007,13 @@ static struct callback_op callback_ops[] = {
 static struct svc_procedure nfs4_callback_procedures1[] = {
 	[CB_NULL] = {
 		.pc_func = nfs4_callback_null,
-		.pc_decode = (kxdrproc_t)nfs4_decode_void,
-		.pc_encode = (kxdrproc_t)nfs4_encode_void,
+		.pc_decode = nfs4_decode_void,
+		.pc_encode = nfs4_encode_void,
 		.pc_xdrressize = 1,
 	},
 	[CB_COMPOUND] = {
 		.pc_func = nfs4_callback_compound,
-		.pc_encode = (kxdrproc_t)nfs4_encode_void,
+		.pc_encode = nfs4_encode_void,
 		.pc_argsize = 256,
 		.pc_ressize = 256,
 		.pc_xdrressize = NFS4_CALLBACK_BUFSIZE,
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 33eb817..e72c6b7 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -681,8 +681,9 @@ out:
  * We only need to convert from xdr once so future lookups are much simpler
  */
 static
-int nfs_readdir_filler(nfs_readdir_descriptor_t *desc, struct page* page)
+int nfs_readdir_filler(struct file *_desc, struct page* page)
 {
+	nfs_readdir_descriptor_t *desc = (nfs_readdir_descriptor_t *)_desc;
 	struct inode	*inode = file_inode(desc->file);
 	int ret;
 
@@ -715,7 +716,7 @@ static
 struct page *get_cache_page(nfs_readdir_descriptor_t *desc)
 {
 	return read_cache_page(file_inode(desc->file)->i_mapping,
-			desc->page_index, (filler_t *)nfs_readdir_filler, desc);
+			desc->page_index, nfs_readdir_filler, desc);
 }
 
 /*
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 738c84a..fd9100f 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1318,16 +1318,16 @@ static int nfs_check_inode_attributes(struct inode *inode, struct nfs_fattr *fat
 	return 0;
 }
 
-static atomic_long_t nfs_attr_generation_counter;
+static atomic_long_unchecked_t nfs_attr_generation_counter;
 
 static unsigned long nfs_read_attr_generation_counter(void)
 {
-	return atomic_long_read(&nfs_attr_generation_counter);
+	return atomic_long_read_unchecked(&nfs_attr_generation_counter);
 }
 
 unsigned long nfs_inc_attr_generation_counter(void)
 {
-	return atomic_long_inc_return(&nfs_attr_generation_counter);
+	return atomic_long_inc_return_unchecked(&nfs_attr_generation_counter);
 }
 EXPORT_SYMBOL_GPL(nfs_inc_attr_generation_counter);
 
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index f1d1d2c..d4a961d 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -608,9 +608,10 @@ unsigned long nfs_block_size(unsigned long bsize, unsigned char *nrbitsp)
 static inline
 void nfs_super_set_maxbytes(struct super_block *sb, __u64 maxfilesize)
 {
-	sb->s_maxbytes = (loff_t)maxfilesize;
-	if (sb->s_maxbytes > MAX_LFS_FILESIZE || sb->s_maxbytes <= 0)
+	if (maxfilesize > MAX_LFS_FILESIZE || maxfilesize == 0)
 		sb->s_maxbytes = MAX_LFS_FILESIZE;
+	else
+		sb->s_maxbytes = (loff_t)maxfilesize;
 }
 
 /*
diff --git a/fs/nfs/mount_clnt.c b/fs/nfs/mount_clnt.c
index 09b1900..344f4c2 100644
--- a/fs/nfs/mount_clnt.c
+++ b/fs/nfs/mount_clnt.c
@@ -303,8 +303,8 @@ static void encode_mntdirpath(struct xdr_stream *xdr, const char *pathname)
 	xdr_encode_opaque(p, pathname, pathname_len);
 }
 
-static void mnt_xdr_enc_dirpath(struct rpc_rqst *req, struct xdr_stream *xdr,
-				const char *dirpath)
+static void mnt_xdr_enc_dirpath(void *req, struct xdr_stream *xdr,
+				void *dirpath)
 {
 	encode_mntdirpath(xdr, dirpath);
 }
@@ -355,10 +355,11 @@ static int decode_fhandle(struct xdr_stream *xdr, struct mountres *res)
 	return 0;
 }
 
-static int mnt_xdr_dec_mountres(struct rpc_rqst *req,
+static int mnt_xdr_dec_mountres(void *req,
 				struct xdr_stream *xdr,
-				struct mountres *res)
+				void *_res)
 {
+	struct mountres *res = _res;
 	int status;
 
 	status = decode_status(xdr, res);
@@ -447,10 +448,11 @@ static int decode_auth_flavors(struct xdr_stream *xdr, struct mountres *res)
 	return 0;
 }
 
-static int mnt_xdr_dec_mountres3(struct rpc_rqst *req,
+static int mnt_xdr_dec_mountres3(void *req,
 				 struct xdr_stream *xdr,
-				 struct mountres *res)
+				 void *_res)
 {
+	struct mountres *res = _res;
 	int status;
 
 	status = decode_fhs_status(xdr, res);
@@ -467,8 +469,8 @@ static int mnt_xdr_dec_mountres3(struct rpc_rqst *req,
 static struct rpc_procinfo mnt_procedures[] = {
 	[MOUNTPROC_MNT] = {
 		.p_proc		= MOUNTPROC_MNT,
-		.p_encode	= (kxdreproc_t)mnt_xdr_enc_dirpath,
-		.p_decode	= (kxdrdproc_t)mnt_xdr_dec_mountres,
+		.p_encode	= mnt_xdr_enc_dirpath,
+		.p_decode	= mnt_xdr_dec_mountres,
 		.p_arglen	= MNT_enc_dirpath_sz,
 		.p_replen	= MNT_dec_mountres_sz,
 		.p_statidx	= MOUNTPROC_MNT,
@@ -476,7 +478,7 @@ static struct rpc_procinfo mnt_procedures[] = {
 	},
 	[MOUNTPROC_UMNT] = {
 		.p_proc		= MOUNTPROC_UMNT,
-		.p_encode	= (kxdreproc_t)mnt_xdr_enc_dirpath,
+		.p_encode	= mnt_xdr_enc_dirpath,
 		.p_arglen	= MNT_enc_dirpath_sz,
 		.p_statidx	= MOUNTPROC_UMNT,
 		.p_name		= "UMOUNT",
@@ -486,8 +488,8 @@ static struct rpc_procinfo mnt_procedures[] = {
 static struct rpc_procinfo mnt3_procedures[] = {
 	[MOUNTPROC3_MNT] = {
 		.p_proc		= MOUNTPROC3_MNT,
-		.p_encode	= (kxdreproc_t)mnt_xdr_enc_dirpath,
-		.p_decode	= (kxdrdproc_t)mnt_xdr_dec_mountres3,
+		.p_encode	= mnt_xdr_enc_dirpath,
+		.p_decode	= mnt_xdr_dec_mountres3,
 		.p_arglen	= MNT_enc_dirpath_sz,
 		.p_replen	= MNT_dec_mountres3_sz,
 		.p_statidx	= MOUNTPROC3_MNT,
@@ -495,7 +497,7 @@ static struct rpc_procinfo mnt3_procedures[] = {
 	},
 	[MOUNTPROC3_UMNT] = {
 		.p_proc		= MOUNTPROC3_UMNT,
-		.p_encode	= (kxdreproc_t)mnt_xdr_enc_dirpath,
+		.p_encode	= mnt_xdr_enc_dirpath,
 		.p_arglen	= MNT_enc_dirpath_sz,
 		.p_statidx	= MOUNTPROC3_UMNT,
 		.p_name		= "UMOUNT",
diff --git a/fs/nfs/nfs2xdr.c b/fs/nfs/nfs2xdr.c
index b4e03ed..6907eb4 100644
--- a/fs/nfs/nfs2xdr.c
+++ b/fs/nfs/nfs2xdr.c
@@ -566,9 +566,9 @@ out_default:
  * "NFS: Network File System Protocol Specification".
  */
 
-static void nfs2_xdr_enc_fhandle(struct rpc_rqst *req,
+static void nfs2_xdr_enc_fhandle(void *req,
 				 struct xdr_stream *xdr,
-				 const struct nfs_fh *fh)
+				 void *fh)
 {
 	encode_fhandle(xdr, fh);
 }
@@ -581,25 +581,31 @@ static void nfs2_xdr_enc_fhandle(struct rpc_rqst *req,
  *		sattr attributes;
  *	};
  */
-static void nfs2_xdr_enc_sattrargs(struct rpc_rqst *req,
+static void nfs2_xdr_enc_sattrargs(void *req,
 				   struct xdr_stream *xdr,
-				   const struct nfs_sattrargs *args)
+				   void *_args)
 {
+	const struct nfs_sattrargs *args = _args;
+
 	encode_fhandle(xdr, args->fh);
 	encode_sattr(xdr, args->sattr);
 }
 
-static void nfs2_xdr_enc_diropargs(struct rpc_rqst *req,
+static void nfs2_xdr_enc_diropargs(void *req,
 				   struct xdr_stream *xdr,
-				   const struct nfs_diropargs *args)
+				   void *_args)
 {
+	const struct nfs_diropargs *args = _args;
+
 	encode_diropargs(xdr, args->fh, args->name, args->len);
 }
 
-static void nfs2_xdr_enc_readlinkargs(struct rpc_rqst *req,
+static void nfs2_xdr_enc_readlinkargs(void *req,
 				      struct xdr_stream *xdr,
-				      const struct nfs_readlinkargs *args)
+				      void *_args)
 {
+	const struct nfs_readlinkargs *args = _args;
+
 	encode_fhandle(xdr, args->fh);
 	prepare_reply_buffer(req, args->pages, args->pgbase,
 					args->pglen, NFS_readlinkres_sz);
@@ -630,10 +636,13 @@ static void encode_readargs(struct xdr_stream *xdr,
 	*p = cpu_to_be32(count);
 }
 
-static void nfs2_xdr_enc_readargs(struct rpc_rqst *req,
+static void nfs2_xdr_enc_readargs(void *_req,
 				  struct xdr_stream *xdr,
-				  const struct nfs_pgio_args *args)
+				  void *_args)
 {
+	struct rpc_rqst *req = _req;
+	const struct nfs_pgio_args *args = _args;
+
 	encode_readargs(xdr, args);
 	prepare_reply_buffer(req, args->pages, args->pgbase,
 					args->count, NFS_readres_sz);
@@ -670,9 +679,9 @@ static void encode_writeargs(struct xdr_stream *xdr,
 	xdr_write_pages(xdr, args->pages, args->pgbase, count);
 }
 
-static void nfs2_xdr_enc_writeargs(struct rpc_rqst *req,
+static void nfs2_xdr_enc_writeargs(void *req,
 				   struct xdr_stream *xdr,
-				   const struct nfs_pgio_args *args)
+				   void *args)
 {
 	encode_writeargs(xdr, args);
 	xdr->buf->flags |= XDRBUF_WRITE;
@@ -686,18 +695,22 @@ static void nfs2_xdr_enc_writeargs(struct rpc_rqst *req,
  *		sattr attributes;
  *	};
  */
-static void nfs2_xdr_enc_createargs(struct rpc_rqst *req,
+static void nfs2_xdr_enc_createargs(void *req,
 				    struct xdr_stream *xdr,
-				    const struct nfs_createargs *args)
+				    void *_args)
 {
+	const struct nfs_createargs *args = _args;
+
 	encode_diropargs(xdr, args->fh, args->name, args->len);
 	encode_sattr(xdr, args->sattr);
 }
 
-static void nfs2_xdr_enc_removeargs(struct rpc_rqst *req,
+static void nfs2_xdr_enc_removeargs(void *req,
 				    struct xdr_stream *xdr,
-				    const struct nfs_removeargs *args)
+				    void *_args)
 {
+	const struct nfs_removeargs *args = _args;
+
 	encode_diropargs(xdr, args->fh, args->name.name, args->name.len);
 }
 
@@ -709,10 +722,11 @@ static void nfs2_xdr_enc_removeargs(struct rpc_rqst *req,
  *		diropargs to;
  *	};
  */
-static void nfs2_xdr_enc_renameargs(struct rpc_rqst *req,
+static void nfs2_xdr_enc_renameargs(void *req,
 				    struct xdr_stream *xdr,
-				    const struct nfs_renameargs *args)
+				    void *_args)
 {
+	const struct nfs_renameargs *args = _args;
 	const struct qstr *old = args->old_name;
 	const struct qstr *new = args->new_name;
 
@@ -728,10 +742,12 @@ static void nfs2_xdr_enc_renameargs(struct rpc_rqst *req,
  *		diropargs to;
  *	};
  */
-static void nfs2_xdr_enc_linkargs(struct rpc_rqst *req,
+static void nfs2_xdr_enc_linkargs(void *req,
 				  struct xdr_stream *xdr,
-				  const struct nfs_linkargs *args)
+				  void *_args)
 {
+	const struct nfs_linkargs *args = _args;
+
 	encode_fhandle(xdr, args->fromfh);
 	encode_diropargs(xdr, args->tofh, args->toname, args->tolen);
 }
@@ -745,10 +761,12 @@ static void nfs2_xdr_enc_linkargs(struct rpc_rqst *req,
  *		sattr attributes;
  *	};
  */
-static void nfs2_xdr_enc_symlinkargs(struct rpc_rqst *req,
+static void nfs2_xdr_enc_symlinkargs(void *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs_symlinkargs *args)
+				     void *_args)
 {
+	const struct nfs_symlinkargs *args = _args;
+
 	encode_diropargs(xdr, args->fromfh, args->fromname, args->fromlen);
 	encode_path(xdr, args->pages, args->pathlen);
 	encode_sattr(xdr, args->sattr);
@@ -775,10 +793,12 @@ static void encode_readdirargs(struct xdr_stream *xdr,
 	*p = cpu_to_be32(args->count);
 }
 
-static void nfs2_xdr_enc_readdirargs(struct rpc_rqst *req,
+static void nfs2_xdr_enc_readdirargs(void *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs_readdirargs *args)
+				     void *_args)
 {
+	const struct nfs_readdirargs *args = _args;
+
 	encode_readdirargs(xdr, args);
 	prepare_reply_buffer(req, args->pages, 0,
 					args->count, NFS_readdirres_sz);
@@ -791,7 +811,7 @@ static void nfs2_xdr_enc_readdirargs(struct rpc_rqst *req,
  * "NFS: Network File System Protocol Specification".
  */
 
-static int nfs2_xdr_dec_stat(struct rpc_rqst *req, struct xdr_stream *xdr,
+static int nfs2_xdr_dec_stat(void *req, struct xdr_stream *xdr,
 			     void *__unused)
 {
 	enum nfs_stat status;
@@ -808,14 +828,14 @@ out_default:
 	return nfs_stat_to_errno(status);
 }
 
-static int nfs2_xdr_dec_attrstat(struct rpc_rqst *req, struct xdr_stream *xdr,
-				 struct nfs_fattr *result)
+static int nfs2_xdr_dec_attrstat(void *req, struct xdr_stream *xdr,
+				 void *result)
 {
 	return decode_attrstat(xdr, result, NULL);
 }
 
-static int nfs2_xdr_dec_diropres(struct rpc_rqst *req, struct xdr_stream *xdr,
-				 struct nfs_diropok *result)
+static int nfs2_xdr_dec_diropres(void *req, struct xdr_stream *xdr,
+				 void *result)
 {
 	return decode_diropres(xdr, result);
 }
@@ -830,7 +850,7 @@ static int nfs2_xdr_dec_diropres(struct rpc_rqst *req, struct xdr_stream *xdr,
  *		void;
  *	};
  */
-static int nfs2_xdr_dec_readlinkres(struct rpc_rqst *req,
+static int nfs2_xdr_dec_readlinkres(void *req,
 				    struct xdr_stream *xdr, void *__unused)
 {
 	enum nfs_stat status;
@@ -859,9 +879,10 @@ out_default:
  *		void;
  *	};
  */
-static int nfs2_xdr_dec_readres(struct rpc_rqst *req, struct xdr_stream *xdr,
-				struct nfs_pgio_res *result)
+static int nfs2_xdr_dec_readres(void *req, struct xdr_stream *xdr,
+				void *_result)
 {
+	struct nfs_pgio_res *result = _result;
 	enum nfs_stat status;
 	int error;
 
@@ -881,9 +902,11 @@ out_default:
 	return nfs_stat_to_errno(status);
 }
 
-static int nfs2_xdr_dec_writeres(struct rpc_rqst *req, struct xdr_stream *xdr,
-				 struct nfs_pgio_res *result)
+static int nfs2_xdr_dec_writeres(void *req, struct xdr_stream *xdr,
+				 void *_result)
 {
+	struct nfs_pgio_res *result = _result;
+
 	/* All NFSv2 writes are "file sync" writes */
 	result->verf->committed = NFS_FILE_SYNC;
 	return decode_attrstat(xdr, result->fattr, &result->op_status);
@@ -981,7 +1004,7 @@ static int decode_readdirok(struct xdr_stream *xdr)
 	return xdr_read_pages(xdr, xdr->buf->page_len);
 }
 
-static int nfs2_xdr_dec_readdirres(struct rpc_rqst *req,
+static int nfs2_xdr_dec_readdirres(void *req,
 				   struct xdr_stream *xdr, void *__unused)
 {
 	enum nfs_stat status;
@@ -1033,8 +1056,8 @@ out_overflow:
 	return -EIO;
 }
 
-static int nfs2_xdr_dec_statfsres(struct rpc_rqst *req, struct xdr_stream *xdr,
-				  struct nfs2_fsstat *result)
+static int nfs2_xdr_dec_statfsres(void *req, struct xdr_stream *xdr,
+				  void *result)
 {
 	enum nfs_stat status;
 	int error;
@@ -1118,8 +1141,8 @@ static int nfs_stat_to_errno(enum nfs_stat status)
 #define PROC(proc, argtype, restype, timer)				\
 [NFSPROC_##proc] = {							\
 	.p_proc	    =  NFSPROC_##proc,					\
-	.p_encode   =  (kxdreproc_t)nfs2_xdr_enc_##argtype,		\
-	.p_decode   =  (kxdrdproc_t)nfs2_xdr_dec_##restype,		\
+	.p_encode   =  nfs2_xdr_enc_##argtype,				\
+	.p_decode   =  nfs2_xdr_dec_##restype,				\
 	.p_arglen   =  NFS_##argtype##_sz,				\
 	.p_replen   =  NFS_##restype##_sz,				\
 	.p_timer    =  timer,						\
diff --git a/fs/nfs/nfs3xdr.c b/fs/nfs/nfs3xdr.c
index 267126d..19c97b8 100644
--- a/fs/nfs/nfs3xdr.c
+++ b/fs/nfs/nfs3xdr.c
@@ -844,9 +844,9 @@ static void encode_diropargs3(struct xdr_stream *xdr, const struct nfs_fh *fh,
  *		nfs_fh3  object;
  *	};
  */
-static void nfs3_xdr_enc_getattr3args(struct rpc_rqst *req,
+static void nfs3_xdr_enc_getattr3args(void *req,
 				      struct xdr_stream *xdr,
-				      const struct nfs_fh *fh)
+				      void *fh)
 {
 	encode_nfs_fh3(xdr, fh);
 }
@@ -882,10 +882,12 @@ static void encode_sattrguard3(struct xdr_stream *xdr,
 	}
 }
 
-static void nfs3_xdr_enc_setattr3args(struct rpc_rqst *req,
+static void nfs3_xdr_enc_setattr3args(void *req,
 				      struct xdr_stream *xdr,
-				      const struct nfs3_sattrargs *args)
+				      void *_args)
 {
+	const struct nfs3_sattrargs *args = _args;
+
 	encode_nfs_fh3(xdr, args->fh);
 	encode_sattr3(xdr, args->sattr);
 	encode_sattrguard3(xdr, args);
@@ -898,10 +900,12 @@ static void nfs3_xdr_enc_setattr3args(struct rpc_rqst *req,
  *		diropargs3  what;
  *	};
  */
-static void nfs3_xdr_enc_lookup3args(struct rpc_rqst *req,
+static void nfs3_xdr_enc_lookup3args(void *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs3_diropargs *args)
+				     void *_args)
 {
+	const struct nfs3_diropargs *args = _args;
+
 	encode_diropargs3(xdr, args->fh, args->name, args->len);
 }
 
@@ -920,9 +924,9 @@ static void encode_access3args(struct xdr_stream *xdr,
 	encode_uint32(xdr, args->access);
 }
 
-static void nfs3_xdr_enc_access3args(struct rpc_rqst *req,
+static void nfs3_xdr_enc_access3args(void *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs3_accessargs *args)
+				     void *args)
 {
 	encode_access3args(xdr, args);
 }
@@ -934,10 +938,11 @@ static void nfs3_xdr_enc_access3args(struct rpc_rqst *req,
  *		nfs_fh3	symlink;
  *	};
  */
-static void nfs3_xdr_enc_readlink3args(struct rpc_rqst *req,
+static void nfs3_xdr_enc_readlink3args(void *req,
 				       struct xdr_stream *xdr,
-				       const struct nfs3_readlinkargs *args)
+				       void *_args)
 {
+	const struct nfs3_readlinkargs *args = _args;
 	encode_nfs_fh3(xdr, args->fh);
 	prepare_reply_buffer(req, args->pages, args->pgbase,
 					args->pglen, NFS3_readlinkres_sz);
@@ -964,10 +969,12 @@ static void encode_read3args(struct xdr_stream *xdr,
 	*p = cpu_to_be32(args->count);
 }
 
-static void nfs3_xdr_enc_read3args(struct rpc_rqst *req,
+static void nfs3_xdr_enc_read3args(void *_req,
 				   struct xdr_stream *xdr,
-				   const struct nfs_pgio_args *args)
+				   void *_args)
 {
+	struct rpc_rqst *req = _req;
+	const struct nfs_pgio_args *args = _args;
 	encode_read3args(xdr, args);
 	prepare_reply_buffer(req, args->pages, args->pgbase,
 					args->count, NFS3_readres_sz);
@@ -1006,9 +1013,9 @@ static void encode_write3args(struct xdr_stream *xdr,
 	xdr_write_pages(xdr, args->pages, args->pgbase, args->count);
 }
 
-static void nfs3_xdr_enc_write3args(struct rpc_rqst *req,
+static void nfs3_xdr_enc_write3args(void *req,
 				    struct xdr_stream *xdr,
-				    const struct nfs_pgio_args *args)
+				    void *args)
 {
 	encode_write3args(xdr, args);
 	xdr->buf->flags |= XDRBUF_WRITE;
@@ -1053,10 +1060,12 @@ static void encode_createhow3(struct xdr_stream *xdr,
 	}
 }
 
-static void nfs3_xdr_enc_create3args(struct rpc_rqst *req,
+static void nfs3_xdr_enc_create3args(void *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs3_createargs *args)
+				     void *_args)
 {
+	const struct nfs3_createargs *args = _args;
+
 	encode_diropargs3(xdr, args->fh, args->name, args->len);
 	encode_createhow3(xdr, args);
 }
@@ -1069,10 +1078,12 @@ static void nfs3_xdr_enc_create3args(struct rpc_rqst *req,
  *		sattr3		attributes;
  *	};
  */
-static void nfs3_xdr_enc_mkdir3args(struct rpc_rqst *req,
+static void nfs3_xdr_enc_mkdir3args(void *req,
 				    struct xdr_stream *xdr,
-				    const struct nfs3_mkdirargs *args)
+				    void *_args)
 {
+	const struct nfs3_mkdirargs *args = _args;
+
 	encode_diropargs3(xdr, args->fh, args->name, args->len);
 	encode_sattr3(xdr, args->sattr);
 }
@@ -1097,10 +1108,12 @@ static void encode_symlinkdata3(struct xdr_stream *xdr,
 	encode_nfspath3(xdr, args->pages, args->pathlen);
 }
 
-static void nfs3_xdr_enc_symlink3args(struct rpc_rqst *req,
+static void nfs3_xdr_enc_symlink3args(void *req,
 				      struct xdr_stream *xdr,
-				      const struct nfs3_symlinkargs *args)
+				      void *_args)
 {
+	const struct nfs3_symlinkargs *args = _args;
+
 	encode_diropargs3(xdr, args->fromfh, args->fromname, args->fromlen);
 	encode_symlinkdata3(xdr, args);
 	xdr->buf->flags |= XDRBUF_WRITE;
@@ -1158,10 +1171,12 @@ static void encode_mknoddata3(struct xdr_stream *xdr,
 	}
 }
 
-static void nfs3_xdr_enc_mknod3args(struct rpc_rqst *req,
+static void nfs3_xdr_enc_mknod3args(void *req,
 				    struct xdr_stream *xdr,
-				    const struct nfs3_mknodargs *args)
+				    void *_args)
 {
+	const struct nfs3_mknodargs *args = _args;
+
 	encode_diropargs3(xdr, args->fh, args->name, args->len);
 	encode_mknoddata3(xdr, args);
 }
@@ -1173,10 +1188,12 @@ static void nfs3_xdr_enc_mknod3args(struct rpc_rqst *req,
  *		diropargs3  object;
  *	};
  */
-static void nfs3_xdr_enc_remove3args(struct rpc_rqst *req,
+static void nfs3_xdr_enc_remove3args(void *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs_removeargs *args)
+				     void *_args)
 {
+	const struct nfs_removeargs *args = _args;
+
 	encode_diropargs3(xdr, args->fh, args->name.name, args->name.len);
 }
 
@@ -1188,10 +1205,11 @@ static void nfs3_xdr_enc_remove3args(struct rpc_rqst *req,
  *		diropargs3	to;
  *	};
  */
-static void nfs3_xdr_enc_rename3args(struct rpc_rqst *req,
+static void nfs3_xdr_enc_rename3args(void *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs_renameargs *args)
+				     void *_args)
 {
+	const struct nfs_renameargs *args = _args;
 	const struct qstr *old = args->old_name;
 	const struct qstr *new = args->new_name;
 
@@ -1207,10 +1225,12 @@ static void nfs3_xdr_enc_rename3args(struct rpc_rqst *req,
  *		diropargs3	link;
  *	};
  */
-static void nfs3_xdr_enc_link3args(struct rpc_rqst *req,
+static void nfs3_xdr_enc_link3args(void *req,
 				   struct xdr_stream *xdr,
-				   const struct nfs3_linkargs *args)
+				   void *_args)
 {
+	const struct nfs3_linkargs *args = _args;
+
 	encode_nfs_fh3(xdr, args->fromfh);
 	encode_diropargs3(xdr, args->tofh, args->toname, args->tolen);
 }
@@ -1238,10 +1258,12 @@ static void encode_readdir3args(struct xdr_stream *xdr,
 	*p = cpu_to_be32(args->count);
 }
 
-static void nfs3_xdr_enc_readdir3args(struct rpc_rqst *req,
+static void nfs3_xdr_enc_readdir3args(void *req,
 				      struct xdr_stream *xdr,
-				      const struct nfs3_readdirargs *args)
+				      void *_args)
 {
+	const struct nfs3_readdirargs *args = _args;
+
 	encode_readdir3args(xdr, args);
 	prepare_reply_buffer(req, args->pages, 0,
 				args->count, NFS3_readdirres_sz);
@@ -1278,10 +1300,12 @@ static void encode_readdirplus3args(struct xdr_stream *xdr,
 	*p = cpu_to_be32(args->count);
 }
 
-static void nfs3_xdr_enc_readdirplus3args(struct rpc_rqst *req,
+static void nfs3_xdr_enc_readdirplus3args(void *req,
 					  struct xdr_stream *xdr,
-					  const struct nfs3_readdirargs *args)
+					  void *_args)
 {
+	const struct nfs3_readdirargs *args = _args;
+
 	encode_readdirplus3args(xdr, args);
 	prepare_reply_buffer(req, args->pages, 0,
 				args->count, NFS3_readdirres_sz);
@@ -1308,19 +1332,21 @@ static void encode_commit3args(struct xdr_stream *xdr,
 	*p = cpu_to_be32(args->count);
 }
 
-static void nfs3_xdr_enc_commit3args(struct rpc_rqst *req,
+static void nfs3_xdr_enc_commit3args(void *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs_commitargs *args)
+				     void *args)
 {
 	encode_commit3args(xdr, args);
 }
 
 #ifdef CONFIG_NFS_V3_ACL
 
-static void nfs3_xdr_enc_getacl3args(struct rpc_rqst *req,
+static void nfs3_xdr_enc_getacl3args(void *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs3_getaclargs *args)
+				     void *_args)
 {
+	const struct nfs3_getaclargs *args = _args;
+
 	encode_nfs_fh3(xdr, args->fh);
 	encode_uint32(xdr, args->mask);
 	if (args->mask & (NFS_ACL | NFS_DFACL))
@@ -1329,10 +1355,12 @@ static void nfs3_xdr_enc_getacl3args(struct rpc_rqst *req,
 					ACL3_getaclres_sz);
 }
 
-static void nfs3_xdr_enc_setacl3args(struct rpc_rqst *req,
+static void nfs3_xdr_enc_setacl3args(void *_req,
 				     struct xdr_stream *xdr,
-				     const struct nfs3_setaclargs *args)
+				     void *_args)
 {
+	struct rpc_rqst *req = _req;
+	const struct nfs3_setaclargs *args = _args;
 	unsigned int base;
 	int error;
 
@@ -1380,9 +1408,9 @@ static void nfs3_xdr_enc_setacl3args(struct rpc_rqst *req,
  *		void;
  *	};
  */
-static int nfs3_xdr_dec_getattr3res(struct rpc_rqst *req,
+static int nfs3_xdr_dec_getattr3res(void *req,
 				    struct xdr_stream *xdr,
-				    struct nfs_fattr *result)
+				    void *result)
 {
 	enum nfs_stat status;
 	int error;
@@ -1417,9 +1445,9 @@ out_default:
  *		SETATTR3resfail resfail;
  *	};
  */
-static int nfs3_xdr_dec_setattr3res(struct rpc_rqst *req,
+static int nfs3_xdr_dec_setattr3res(void *req,
 				    struct xdr_stream *xdr,
-				    struct nfs_fattr *result)
+				    void *result)
 {
 	enum nfs_stat status;
 	int error;
@@ -1458,10 +1486,11 @@ out_status:
  *		LOOKUP3resfail	resfail;
  *	};
  */
-static int nfs3_xdr_dec_lookup3res(struct rpc_rqst *req,
+static int nfs3_xdr_dec_lookup3res(void *req,
 				   struct xdr_stream *xdr,
-				   struct nfs3_diropres *result)
+				   void *_result)
 {
+	struct nfs3_diropres *result = _result;
 	enum nfs_stat status;
 	int error;
 
@@ -1505,10 +1534,11 @@ out_default:
  *		ACCESS3resfail	resfail;
  *	};
  */
-static int nfs3_xdr_dec_access3res(struct rpc_rqst *req,
+static int nfs3_xdr_dec_access3res(void *req,
 				   struct xdr_stream *xdr,
-				   struct nfs3_accessres *result)
+				   void *_result)
 {
+	struct nfs3_accessres *result = _result;
 	enum nfs_stat status;
 	int error;
 
@@ -1546,9 +1576,9 @@ out_default:
  *		READLINK3resfail resfail;
  *	};
  */
-static int nfs3_xdr_dec_readlink3res(struct rpc_rqst *req,
+static int nfs3_xdr_dec_readlink3res(void *req,
 				     struct xdr_stream *xdr,
-				     struct nfs_fattr *result)
+				     void *result)
 {
 	enum nfs_stat status;
 	int error;
@@ -1625,9 +1655,10 @@ out_overflow:
 	return -EIO;
 }
 
-static int nfs3_xdr_dec_read3res(struct rpc_rqst *req, struct xdr_stream *xdr,
-				 struct nfs_pgio_res *result)
+static int nfs3_xdr_dec_read3res(void *req, struct xdr_stream *xdr,
+				 void *_result)
 {
+	struct nfs_pgio_res *result = _result;
 	enum nfs_stat status;
 	int error;
 
@@ -1698,9 +1729,10 @@ out_eio:
 	return -EIO;
 }
 
-static int nfs3_xdr_dec_write3res(struct rpc_rqst *req, struct xdr_stream *xdr,
-				  struct nfs_pgio_res *result)
+static int nfs3_xdr_dec_write3res(void *req, struct xdr_stream *xdr,
+				  void *_result)
 {
+	struct nfs_pgio_res *result = _result;
 	enum nfs_stat status;
 	int error;
 
@@ -1762,10 +1794,11 @@ out:
 	return error;
 }
 
-static int nfs3_xdr_dec_create3res(struct rpc_rqst *req,
+static int nfs3_xdr_dec_create3res(void *req,
 				   struct xdr_stream *xdr,
-				   struct nfs3_diropres *result)
+				   void *_result)
 {
+	struct nfs3_diropres *result = _result;
 	enum nfs_stat status;
 	int error;
 
@@ -1802,10 +1835,11 @@ out_default:
  *		REMOVE3resfail resfail;
  *	};
  */
-static int nfs3_xdr_dec_remove3res(struct rpc_rqst *req,
+static int nfs3_xdr_dec_remove3res(void *req,
 				   struct xdr_stream *xdr,
-				   struct nfs_removeres *result)
+				   void *_result)
 {
+	struct nfs_removeres *result = _result;
 	enum nfs_stat status;
 	int error;
 
@@ -1843,10 +1877,11 @@ out_status:
  *		RENAME3resfail resfail;
  *	};
  */
-static int nfs3_xdr_dec_rename3res(struct rpc_rqst *req,
+static int nfs3_xdr_dec_rename3res(void *req,
 				   struct xdr_stream *xdr,
-				   struct nfs_renameres *result)
+				   void *_result)
 {
+	struct nfs_renameres *result = _result;
 	enum nfs_stat status;
 	int error;
 
@@ -1887,9 +1922,10 @@ out_status:
  *		LINK3resfail	resfail;
  *	};
  */
-static int nfs3_xdr_dec_link3res(struct rpc_rqst *req, struct xdr_stream *xdr,
-				 struct nfs3_linkres *result)
+static int nfs3_xdr_dec_link3res(void *req, struct xdr_stream *xdr,
+				 void *_result)
 {
+	struct nfs3_linkres *result = _result;
 	enum nfs_stat status;
 	int error;
 
@@ -2070,10 +2106,11 @@ out:
 	return error;
 }
 
-static int nfs3_xdr_dec_readdir3res(struct rpc_rqst *req,
+static int nfs3_xdr_dec_readdir3res(void *req,
 				    struct xdr_stream *xdr,
-				    struct nfs3_readdirres *result)
+				    void *_result)
 {
+	struct nfs3_readdirres *result = _result;
 	enum nfs_stat status;
 	int error;
 
@@ -2138,10 +2175,11 @@ out_overflow:
 	return -EIO;
 }
 
-static int nfs3_xdr_dec_fsstat3res(struct rpc_rqst *req,
+static int nfs3_xdr_dec_fsstat3res(void *req,
 				   struct xdr_stream *xdr,
-				   struct nfs_fsstat *result)
+				   void *_result)
 {
+	struct nfs_fsstat *result = _result;
 	enum nfs_stat status;
 	int error;
 
@@ -2214,10 +2252,11 @@ out_overflow:
 	return -EIO;
 }
 
-static int nfs3_xdr_dec_fsinfo3res(struct rpc_rqst *req,
+static int nfs3_xdr_dec_fsinfo3res(void *req,
 				   struct xdr_stream *xdr,
-				   struct nfs_fsinfo *result)
+				   void *_result)
 {
+	struct nfs_fsinfo *result = _result;
 	enum nfs_stat status;
 	int error;
 
@@ -2277,10 +2316,11 @@ out_overflow:
 	return -EIO;
 }
 
-static int nfs3_xdr_dec_pathconf3res(struct rpc_rqst *req,
+static int nfs3_xdr_dec_pathconf3res(void *req,
 				     struct xdr_stream *xdr,
-				     struct nfs_pathconf *result)
+				     void *_result)
 {
+	struct nfs_pathconf *result = _result;
 	enum nfs_stat status;
 	int error;
 
@@ -2318,10 +2358,11 @@ out_status:
  *		COMMIT3resfail	resfail;
  *	};
  */
-static int nfs3_xdr_dec_commit3res(struct rpc_rqst *req,
+static int nfs3_xdr_dec_commit3res(void *req,
 				   struct xdr_stream *xdr,
-				   struct nfs_commitres *result)
+				   void *_result)
 {
+	struct nfs_commitres *result = _result;
 	enum nfs_stat status;
 	int error;
 
@@ -2387,9 +2428,9 @@ out:
 	return error;
 }
 
-static int nfs3_xdr_dec_getacl3res(struct rpc_rqst *req,
+static int nfs3_xdr_dec_getacl3res(void *req,
 				   struct xdr_stream *xdr,
-				   struct nfs3_getaclres *result)
+				   void *result)
 {
 	enum nfs_stat status;
 	int error;
@@ -2406,9 +2447,9 @@ out_default:
 	return nfs3_stat_to_errno(status);
 }
 
-static int nfs3_xdr_dec_setacl3res(struct rpc_rqst *req,
+static int nfs3_xdr_dec_setacl3res(void *req,
 				   struct xdr_stream *xdr,
-				   struct nfs_fattr *result)
+				   void *result)
 {
 	enum nfs_stat status;
 	int error;
@@ -2495,8 +2536,8 @@ static int nfs3_stat_to_errno(enum nfs_stat status)
 #define PROC(proc, argtype, restype, timer)				\
 [NFS3PROC_##proc] = {							\
 	.p_proc      = NFS3PROC_##proc,					\
-	.p_encode    = (kxdreproc_t)nfs3_xdr_enc_##argtype##3args,	\
-	.p_decode    = (kxdrdproc_t)nfs3_xdr_dec_##restype##3res,	\
+	.p_encode    = nfs3_xdr_enc_##argtype##3args,			\
+	.p_decode    = nfs3_xdr_dec_##restype##3res,			\
 	.p_arglen    = NFS3_##argtype##args_sz,				\
 	.p_replen    = NFS3_##restype##res_sz,				\
 	.p_timer     = timer,						\
@@ -2538,8 +2579,8 @@ const struct rpc_version nfs_version3 = {
 static struct rpc_procinfo	nfs3_acl_procedures[] = {
 	[ACLPROC3_GETACL] = {
 		.p_proc = ACLPROC3_GETACL,
-		.p_encode = (kxdreproc_t)nfs3_xdr_enc_getacl3args,
-		.p_decode = (kxdrdproc_t)nfs3_xdr_dec_getacl3res,
+		.p_encode = nfs3_xdr_enc_getacl3args,
+		.p_decode = nfs3_xdr_dec_getacl3res,
 		.p_arglen = ACL3_getaclargs_sz,
 		.p_replen = ACL3_getaclres_sz,
 		.p_timer = 1,
@@ -2547,8 +2588,8 @@ static struct rpc_procinfo	nfs3_acl_procedures[] = {
 	},
 	[ACLPROC3_SETACL] = {
 		.p_proc = ACLPROC3_SETACL,
-		.p_encode = (kxdreproc_t)nfs3_xdr_enc_setacl3args,
-		.p_decode = (kxdrdproc_t)nfs3_xdr_dec_setacl3res,
+		.p_encode = nfs3_xdr_enc_setacl3args,
+		.p_decode = nfs3_xdr_dec_setacl3res,
 		.p_arglen = ACL3_setaclargs_sz,
 		.p_replen = ACL3_setaclres_sz,
 		.p_timer = 0,
diff --git a/fs/nfs/nfs42xdr.c b/fs/nfs/nfs42xdr.c
index 0ca482a..5df90f3 100644
--- a/fs/nfs/nfs42xdr.c
+++ b/fs/nfs/nfs42xdr.c
@@ -165,10 +165,12 @@ static void encode_clone(struct xdr_stream *xdr,
 /*
  * Encode ALLOCATE request
  */
-static void nfs4_xdr_enc_allocate(struct rpc_rqst *req,
+static void nfs4_xdr_enc_allocate(void *_req,
 				  struct xdr_stream *xdr,
-				  struct nfs42_falloc_args *args)
+				  void *_args)
 {
+	struct rpc_rqst *req = _req;
+	struct nfs42_falloc_args *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -184,10 +186,12 @@ static void nfs4_xdr_enc_allocate(struct rpc_rqst *req,
 /*
  * Encode DEALLOCATE request
  */
-static void nfs4_xdr_enc_deallocate(struct rpc_rqst *req,
+static void nfs4_xdr_enc_deallocate(void *_req,
 				    struct xdr_stream *xdr,
-				    struct nfs42_falloc_args *args)
+				    void *_args)
 {
+	struct rpc_rqst *req = _req;
+	struct nfs42_falloc_args *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -203,10 +207,12 @@ static void nfs4_xdr_enc_deallocate(struct rpc_rqst *req,
 /*
  * Encode SEEK request
  */
-static void nfs4_xdr_enc_seek(struct rpc_rqst *req,
+static void nfs4_xdr_enc_seek(void *_req,
 			      struct xdr_stream *xdr,
-			      struct nfs42_seek_args *args)
+			      void *_args)
 {
+	struct rpc_rqst *req = _req;
+	struct nfs42_seek_args *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -221,10 +227,12 @@ static void nfs4_xdr_enc_seek(struct rpc_rqst *req,
 /*
  * Encode LAYOUTSTATS request
  */
-static void nfs4_xdr_enc_layoutstats(struct rpc_rqst *req,
+static void nfs4_xdr_enc_layoutstats(void *_req,
 				     struct xdr_stream *xdr,
-				     struct nfs42_layoutstat_args *args)
+				     void *_args)
 {
+	struct rpc_rqst *req = _req;
+	struct nfs42_layoutstat_args *args = _args;
 	int i;
 
 	struct compound_hdr hdr = {
@@ -243,10 +251,12 @@ static void nfs4_xdr_enc_layoutstats(struct rpc_rqst *req,
 /*
  * Encode CLONE request
  */
-static void nfs4_xdr_enc_clone(struct rpc_rqst *req,
+static void nfs4_xdr_enc_clone(void *_req,
 			       struct xdr_stream *xdr,
-			       struct nfs42_clone_args *args)
+			       void *_args)
 {
+	struct rpc_rqst *req = _req;
+	struct nfs42_clone_args *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -306,10 +316,12 @@ static int decode_clone(struct xdr_stream *xdr)
 /*
  * Decode ALLOCATE request
  */
-static int nfs4_xdr_dec_allocate(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_allocate(void *_rqstp,
 				 struct xdr_stream *xdr,
-				 struct nfs42_falloc_res *res)
+				 void *_res)
 {
+	struct rpc_rqst *rqstp = _rqstp;
+	struct nfs42_falloc_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -333,10 +345,12 @@ out:
 /*
  * Decode DEALLOCATE request
  */
-static int nfs4_xdr_dec_deallocate(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_deallocate(void *_rqstp,
 				   struct xdr_stream *xdr,
-				   struct nfs42_falloc_res *res)
+				   void *_res)
 {
+	struct rpc_rqst *rqstp = _rqstp;
+	struct nfs42_falloc_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -360,10 +374,12 @@ out:
 /*
  * Decode SEEK request
  */
-static int nfs4_xdr_dec_seek(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_seek(void *_rqstp,
 			     struct xdr_stream *xdr,
-			     struct nfs42_seek_res *res)
+			     void *_res)
 {
+	struct rpc_rqst *rqstp = _rqstp;
+	struct nfs42_seek_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -384,10 +400,12 @@ out:
 /*
  * Decode LAYOUTSTATS request
  */
-static int nfs4_xdr_dec_layoutstats(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_layoutstats(void *_rqstp,
 				    struct xdr_stream *xdr,
-				    struct nfs42_layoutstat_res *res)
+				    void *_res)
 {
+	struct rpc_rqst *rqstp = _rqstp;
+	struct nfs42_layoutstat_res *res = _res;
 	struct compound_hdr hdr;
 	int status, i;
 
@@ -414,10 +432,12 @@ out:
 /*
  * Decode CLONE request
  */
-static int nfs4_xdr_dec_clone(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_clone(void *_rqstp,
 			      struct xdr_stream *xdr,
-			      struct nfs42_clone_res *res)
+			      void *_res)
 {
+	struct rpc_rqst *rqstp = _rqstp;
+	struct nfs42_clone_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 88474a4..55ee771 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -2076,9 +2076,10 @@ static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args)
 /*
  * Encode an ACCESS request
  */
-static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr,
-				const struct nfs4_accessargs *args)
+static void nfs4_xdr_enc_access(void *req, struct xdr_stream *xdr,
+				void *_args)
 {
+	const struct nfs4_accessargs *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2094,9 +2095,10 @@ static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr,
 /*
  * Encode LOOKUP request
  */
-static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr,
-				const struct nfs4_lookup_arg *args)
+static void nfs4_xdr_enc_lookup(void *req, struct xdr_stream *xdr,
+				void *_args)
 {
+	const struct nfs4_lookup_arg *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2113,10 +2115,11 @@ static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr,
 /*
  * Encode LOOKUP_ROOT request
  */
-static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req,
+static void nfs4_xdr_enc_lookup_root(void *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs4_lookup_root_arg *args)
+				     void *_args)
 {
+	const struct nfs4_lookup_root_arg *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2132,9 +2135,10 @@ static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req,
 /*
  * Encode REMOVE request
  */
-static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr,
-				const struct nfs_removeargs *args)
+static void nfs4_xdr_enc_remove(void *req, struct xdr_stream *xdr,
+				void *_args)
 {
+	const struct nfs_removeargs *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2149,9 +2153,10 @@ static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr,
 /*
  * Encode RENAME request
  */
-static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr,
-				const struct nfs_renameargs *args)
+static void nfs4_xdr_enc_rename(void *req, struct xdr_stream *xdr,
+				void *_args)
 {
+	const struct nfs_renameargs *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2168,9 +2173,10 @@ static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr,
 /*
  * Encode LINK request
  */
-static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr,
-			     const struct nfs4_link_arg *args)
+static void nfs4_xdr_enc_link(void *req, struct xdr_stream *xdr,
+			     void *_args)
 {
+	const struct nfs4_link_arg *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2189,9 +2195,10 @@ static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr,
 /*
  * Encode CREATE request
  */
-static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr,
-				const struct nfs4_create_arg *args)
+static void nfs4_xdr_enc_create(void *req, struct xdr_stream *xdr,
+				void *_args)
 {
+	const struct nfs4_create_arg *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2208,8 +2215,8 @@ static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr,
 /*
  * Encode SYMLINK request
  */
-static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr,
-				 const struct nfs4_create_arg *args)
+static void nfs4_xdr_enc_symlink(void *req, struct xdr_stream *xdr,
+				 void *args)
 {
 	nfs4_xdr_enc_create(req, xdr, args);
 }
@@ -2217,9 +2224,10 @@ static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr,
 /*
  * Encode GETATTR request
  */
-static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr,
-				 const struct nfs4_getattr_arg *args)
+static void nfs4_xdr_enc_getattr(void *req, struct xdr_stream *xdr,
+				 void *_args)
 {
+	const struct nfs4_getattr_arg *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2234,9 +2242,10 @@ static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr,
 /*
  * Encode a CLOSE request
  */
-static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr,
-			       struct nfs_closeargs *args)
+static void nfs4_xdr_enc_close(void *req, struct xdr_stream *xdr,
+			       void *_args)
 {
+	struct nfs_closeargs *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2252,9 +2261,10 @@ static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr,
 /*
  * Encode an OPEN request
  */
-static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr,
-			      struct nfs_openargs *args)
+static void nfs4_xdr_enc_open(void *req, struct xdr_stream *xdr,
+			      void *_args)
 {
+	struct nfs_openargs *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2273,10 +2283,11 @@ static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr,
 /*
  * Encode an OPEN_CONFIRM request
  */
-static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req,
+static void nfs4_xdr_enc_open_confirm(void *req,
 				      struct xdr_stream *xdr,
-				      struct nfs_open_confirmargs *args)
+				      void *_args)
 {
+	struct nfs_open_confirmargs *args = _args;
 	struct compound_hdr hdr = {
 		.nops   = 0,
 	};
@@ -2290,10 +2301,11 @@ static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req,
 /*
  * Encode an OPEN request with no attributes.
  */
-static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req,
+static void nfs4_xdr_enc_open_noattr(void *req,
 				     struct xdr_stream *xdr,
-				     struct nfs_openargs *args)
+				     void *_args)
 {
+	struct nfs_openargs *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2311,10 +2323,11 @@ static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req,
 /*
  * Encode an OPEN_DOWNGRADE request
  */
-static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req,
+static void nfs4_xdr_enc_open_downgrade(void *req,
 					struct xdr_stream *xdr,
-					struct nfs_closeargs *args)
+					void *_args)
 {
+	struct nfs_closeargs *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2330,9 +2343,10 @@ static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req,
 /*
  * Encode a LOCK request
  */
-static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr,
-			      struct nfs_lock_args *args)
+static void nfs4_xdr_enc_lock(void *req, struct xdr_stream *xdr,
+			      void *_args)
 {
+	struct nfs_lock_args *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2347,9 +2361,10 @@ static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr,
 /*
  * Encode a LOCKT request
  */
-static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr,
-			       struct nfs_lockt_args *args)
+static void nfs4_xdr_enc_lockt(void *req, struct xdr_stream *xdr,
+			       void *_args)
 {
+	struct nfs_lockt_args *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2364,9 +2379,10 @@ static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr,
 /*
  * Encode a LOCKU request
  */
-static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr,
-			       struct nfs_locku_args *args)
+static void nfs4_xdr_enc_locku(void *req, struct xdr_stream *xdr,
+			       void *_args)
 {
+	struct nfs_locku_args *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2378,10 +2394,11 @@ static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr,
 	encode_nops(&hdr);
 }
 
-static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req,
+static void nfs4_xdr_enc_release_lockowner(void *req,
 					   struct xdr_stream *xdr,
-					struct nfs_release_lockowner_args *args)
+					void *_args)
 {
+	struct nfs_release_lockowner_args *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = 0,
 	};
@@ -2394,9 +2411,11 @@ static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req,
 /*
  * Encode a READLINK request
  */
-static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr,
-				  const struct nfs4_readlink *args)
+static void nfs4_xdr_enc_readlink(void *_req, struct xdr_stream *xdr,
+				  void *_args)
 {
+	struct rpc_rqst *req = _req;
+	const struct nfs4_readlink *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2414,9 +2433,11 @@ static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr,
 /*
  * Encode a READDIR request
  */
-static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr,
-				 const struct nfs4_readdir_arg *args)
+static void nfs4_xdr_enc_readdir(void *_req, struct xdr_stream *xdr,
+				 void *_args)
 {
+	struct rpc_rqst *req = _req;
+	const struct nfs4_readdir_arg *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2437,9 +2458,11 @@ static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr,
 /*
  * Encode a READ request
  */
-static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr,
-			      struct nfs_pgio_args *args)
+static void nfs4_xdr_enc_read(void *_req, struct xdr_stream *xdr,
+			      void *_args)
 {
+	struct rpc_rqst *req = _req;
+	struct nfs_pgio_args *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2458,9 +2481,11 @@ static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr,
 /*
  * Encode an SETATTR request
  */
-static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr,
-				 struct nfs_setattrargs *args)
+static void nfs4_xdr_enc_setattr(void *_req, struct xdr_stream *xdr,
+				 void *_args)
 {
+	struct rpc_rqst *req = _req;
+	struct nfs_setattrargs *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2476,9 +2501,11 @@ static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr,
 /*
  * Encode a GETACL request
  */
-static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr,
-				struct nfs_getaclargs *args)
+static void nfs4_xdr_enc_getacl(void *_req, struct xdr_stream *xdr,
+				void *_args)
 {
+	struct rpc_rqst *req = _req;
+	struct nfs_getaclargs *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2499,9 +2526,11 @@ static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr,
 /*
  * Encode a WRITE request
  */
-static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr,
-			       struct nfs_pgio_args *args)
+static void nfs4_xdr_enc_write(void *_req, struct xdr_stream *xdr,
+			       void *_args)
 {
+	struct rpc_rqst *req = _req;
+	struct nfs_pgio_args *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2519,9 +2548,10 @@ static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr,
 /*
  *  a COMMIT request
  */
-static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr,
-				struct nfs_commitargs *args)
+static void nfs4_xdr_enc_commit(void *req, struct xdr_stream *xdr,
+				void *_args)
 {
+	struct nfs_commitargs *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2536,9 +2566,10 @@ static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr,
 /*
  * FSINFO request
  */
-static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
-				struct nfs4_fsinfo_arg *args)
+static void nfs4_xdr_enc_fsinfo(void *req, struct xdr_stream *xdr,
+				void *_args)
 {
+	struct nfs4_fsinfo_arg *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2553,9 +2584,10 @@ static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
 /*
  * a PATHCONF request
  */
-static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
-				  const struct nfs4_pathconf_arg *args)
+static void nfs4_xdr_enc_pathconf(void *req, struct xdr_stream *xdr,
+				  void *_args)
 {
+	const struct nfs4_pathconf_arg *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2571,9 +2603,10 @@ static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
 /*
  * a STATFS request
  */
-static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
-				const struct nfs4_statfs_arg *args)
+static void nfs4_xdr_enc_statfs(void *req, struct xdr_stream *xdr,
+				void *_args)
 {
+	const struct nfs4_statfs_arg *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2589,10 +2622,11 @@ static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
 /*
  * GETATTR_BITMAP request
  */
-static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req,
+static void nfs4_xdr_enc_server_caps(void *req,
 				     struct xdr_stream *xdr,
-				     struct nfs4_server_caps_arg *args)
+				     void *_args)
 {
+	struct nfs4_server_caps_arg *args = _args;
 	const u32 *bitmask = args->bitmask;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
@@ -2608,9 +2642,10 @@ static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req,
 /*
  * a RENEW request
  */
-static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr,
-			       struct nfs_client *clp)
+static void nfs4_xdr_enc_renew(void *req, struct xdr_stream *xdr,
+			       void *_clp)
 {
+	struct nfs_client *clp = _clp;
 	struct compound_hdr hdr = {
 		.nops	= 0,
 	};
@@ -2623,9 +2658,9 @@ static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr,
 /*
  * a SETCLIENTID request
  */
-static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req,
+static void nfs4_xdr_enc_setclientid(void *req,
 				     struct xdr_stream *xdr,
-				     struct nfs4_setclientid *sc)
+				     void *sc)
 {
 	struct compound_hdr hdr = {
 		.nops	= 0,
@@ -2639,9 +2674,9 @@ static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req,
 /*
  * a SETCLIENTID_CONFIRM request
  */
-static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req,
+static void nfs4_xdr_enc_setclientid_confirm(void *req,
 					     struct xdr_stream *xdr,
-					     struct nfs4_setclientid_res *arg)
+					     void *arg)
 {
 	struct compound_hdr hdr = {
 		.nops	= 0,
@@ -2655,10 +2690,11 @@ static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req,
 /*
  * DELEGRETURN request
  */
-static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req,
+static void nfs4_xdr_enc_delegreturn(void *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs4_delegreturnargs *args)
+				     void *_args)
 {
+	const struct nfs4_delegreturnargs *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2674,10 +2710,12 @@ static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req,
 /*
  * Encode FS_LOCATIONS request
  */
-static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req,
+static void nfs4_xdr_enc_fs_locations(void *_req,
 				      struct xdr_stream *xdr,
-				      struct nfs4_fs_locations_arg *args)
+				      void *_args)
 {
+	struct rpc_rqst *req = _req;
+	struct nfs4_fs_locations_arg *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2707,10 +2745,11 @@ static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req,
 /*
  * Encode SECINFO request
  */
-static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req,
+static void nfs4_xdr_enc_secinfo(void *req,
 				struct xdr_stream *xdr,
-				struct nfs4_secinfo_arg *args)
+				void *_args)
 {
+	struct nfs4_secinfo_arg *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2725,10 +2764,11 @@ static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req,
 /*
  * Encode FSID_PRESENT request
  */
-static void nfs4_xdr_enc_fsid_present(struct rpc_rqst *req,
+static void nfs4_xdr_enc_fsid_present(void *req,
 				      struct xdr_stream *xdr,
-				      struct nfs4_fsid_present_arg *args)
+				      void *_args)
 {
+	struct nfs4_fsid_present_arg *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2746,10 +2786,11 @@ static void nfs4_xdr_enc_fsid_present(struct rpc_rqst *req,
 /*
  * BIND_CONN_TO_SESSION request
  */
-static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst *req,
+static void nfs4_xdr_enc_bind_conn_to_session(void *req,
 				struct xdr_stream *xdr,
-				struct nfs41_bind_conn_to_session_args *args)
+				void *_args)
 {
+	struct nfs41_bind_conn_to_session_args *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = args->client->cl_mvops->minor_version,
 	};
@@ -2762,10 +2803,11 @@ static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst *req,
 /*
  * EXCHANGE_ID request
  */
-static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req,
+static void nfs4_xdr_enc_exchange_id(void *req,
 				     struct xdr_stream *xdr,
-				     struct nfs41_exchange_id_args *args)
+				     void *_args)
 {
+	struct nfs41_exchange_id_args *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = args->client->cl_mvops->minor_version,
 	};
@@ -2778,10 +2820,11 @@ static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req,
 /*
  * a CREATE_SESSION request
  */
-static void nfs4_xdr_enc_create_session(struct rpc_rqst *req,
+static void nfs4_xdr_enc_create_session(void *req,
 					struct xdr_stream *xdr,
-					struct nfs41_create_session_args *args)
+					void *_args)
 {
+	struct nfs41_create_session_args *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = args->client->cl_mvops->minor_version,
 	};
@@ -2794,10 +2837,11 @@ static void nfs4_xdr_enc_create_session(struct rpc_rqst *req,
 /*
  * a DESTROY_SESSION request
  */
-static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req,
+static void nfs4_xdr_enc_destroy_session(void *req,
 					 struct xdr_stream *xdr,
-					 struct nfs4_session *session)
+					 void *_session)
 {
+	struct nfs4_session *session = _session;
 	struct compound_hdr hdr = {
 		.minorversion = session->clp->cl_mvops->minor_version,
 	};
@@ -2810,10 +2854,11 @@ static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req,
 /*
  * a DESTROY_CLIENTID request
  */
-static void nfs4_xdr_enc_destroy_clientid(struct rpc_rqst *req,
+static void nfs4_xdr_enc_destroy_clientid(void *req,
 					 struct xdr_stream *xdr,
-					 struct nfs_client *clp)
+					 void *_clp)
 {
+	struct nfs_client *clp = _clp;
 	struct compound_hdr hdr = {
 		.minorversion = clp->cl_mvops->minor_version,
 	};
@@ -2826,8 +2871,8 @@ static void nfs4_xdr_enc_destroy_clientid(struct rpc_rqst *req,
 /*
  * a SEQUENCE request
  */
-static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr,
-				  struct nfs4_sequence_args *args)
+static void nfs4_xdr_enc_sequence(void *req, struct xdr_stream *xdr,
+				  void *args)
 {
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(args),
@@ -2841,10 +2886,11 @@ static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr,
 /*
  * a GET_LEASE_TIME request
  */
-static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req,
+static void nfs4_xdr_enc_get_lease_time(void *req,
 					struct xdr_stream *xdr,
-					struct nfs4_get_lease_time_args *args)
+					void *_args)
 {
+	struct nfs4_get_lease_time_args *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->la_seq_args),
 	};
@@ -2860,10 +2906,11 @@ static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req,
 /*
  * a RECLAIM_COMPLETE request
  */
-static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req,
+static void nfs4_xdr_enc_reclaim_complete(void *req,
 					  struct xdr_stream *xdr,
-				struct nfs41_reclaim_complete_args *args)
+					  void *_args)
 {
+	struct nfs41_reclaim_complete_args *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args)
 	};
@@ -2877,10 +2924,12 @@ static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req,
 /*
  * Encode GETDEVICEINFO request
  */
-static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req,
+static void nfs4_xdr_enc_getdeviceinfo(void *_req,
 				       struct xdr_stream *xdr,
-				       struct nfs4_getdeviceinfo_args *args)
+				       void *_args)
 {
+	struct rpc_rqst *req = _req;
+	struct nfs4_getdeviceinfo_args *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2901,10 +2950,12 @@ static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req,
 /*
  *  Encode LAYOUTGET request
  */
-static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req,
+static void nfs4_xdr_enc_layoutget(void *_req,
 				   struct xdr_stream *xdr,
-				   struct nfs4_layoutget_args *args)
+				   void *_args)
 {
+	struct rpc_rqst *req = _req;
+	struct nfs4_layoutget_args *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2923,10 +2974,11 @@ static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req,
 /*
  *  Encode LAYOUTCOMMIT request
  */
-static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req,
+static void nfs4_xdr_enc_layoutcommit(void *req,
 				      struct xdr_stream *xdr,
-				      struct nfs4_layoutcommit_args *args)
+				      void *_args)
 {
+	struct nfs4_layoutcommit_args *args = _args;
 	struct nfs4_layoutcommit_data *data =
 		container_of(args, struct nfs4_layoutcommit_data, args);
 	struct compound_hdr hdr = {
@@ -2944,10 +2996,11 @@ static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req,
 /*
  * Encode LAYOUTRETURN request
  */
-static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req,
+static void nfs4_xdr_enc_layoutreturn(void *req,
 				      struct xdr_stream *xdr,
-				      struct nfs4_layoutreturn_args *args)
+				      void *_args)
 {
+	struct nfs4_layoutreturn_args *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2962,10 +3015,11 @@ static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req,
 /*
  * Encode SECINFO_NO_NAME request
  */
-static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req,
+static void nfs4_xdr_enc_secinfo_no_name(void *req,
 					struct xdr_stream *xdr,
-					struct nfs41_secinfo_no_name_args *args)
+					void *_args)
 {
+	struct nfs41_secinfo_no_name_args *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2975,16 +3029,16 @@ static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req,
 	encode_putrootfh(xdr, &hdr);
 	encode_secinfo_no_name(xdr, args, &hdr);
 	encode_nops(&hdr);
-	return 0;
 }
 
 /*
  *  Encode TEST_STATEID request
  */
-static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req,
+static void nfs4_xdr_enc_test_stateid(void *req,
 				      struct xdr_stream *xdr,
-				      struct nfs41_test_stateid_args *args)
+				      void *_args)
 {
+	struct nfs41_test_stateid_args *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2998,10 +3052,11 @@ static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req,
 /*
  *  Encode FREE_STATEID request
  */
-static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req,
+static void nfs4_xdr_enc_free_stateid(void *req,
 				     struct xdr_stream *xdr,
-				     struct nfs41_free_stateid_args *args)
+				     void *_args)
 {
+	struct nfs41_free_stateid_args *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -6067,10 +6122,11 @@ static int decode_free_stateid(struct xdr_stream *xdr,
 /*
  * Decode OPEN_DOWNGRADE response
  */
-static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_open_downgrade(void *rqstp,
 				       struct xdr_stream *xdr,
-				       struct nfs_closeres *res)
+				       void *_res)
 {
+	struct nfs_closeres *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6094,9 +6150,10 @@ out:
 /*
  * Decode ACCESS response
  */
-static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-			       struct nfs4_accessres *res)
+static int nfs4_xdr_dec_access(void *rqstp, struct xdr_stream *xdr,
+			       void *_res)
 {
+	struct nfs4_accessres *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6120,9 +6177,10 @@ out:
 /*
  * Decode LOOKUP response
  */
-static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-			       struct nfs4_lookup_res *res)
+static int nfs4_xdr_dec_lookup(void *rqstp, struct xdr_stream *xdr,
+			       void *_res)
 {
+	struct nfs4_lookup_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6149,10 +6207,11 @@ out:
 /*
  * Decode LOOKUP_ROOT response
  */
-static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_lookup_root(void *rqstp,
 				    struct xdr_stream *xdr,
-				    struct nfs4_lookup_res *res)
+				    void *_res)
 {
+	struct nfs4_lookup_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6176,9 +6235,10 @@ out:
 /*
  * Decode REMOVE response
  */
-static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-			       struct nfs_removeres *res)
+static int nfs4_xdr_dec_remove(void *rqstp, struct xdr_stream *xdr,
+			       void *_res)
 {
+	struct nfs_removeres *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6199,9 +6259,10 @@ out:
 /*
  * Decode RENAME response
  */
-static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-			       struct nfs_renameres *res)
+static int nfs4_xdr_dec_rename(void *rqstp, struct xdr_stream *xdr,
+			       void *_res)
 {
+	struct nfs_renameres *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6228,9 +6289,10 @@ out:
 /*
  * Decode LINK response
  */
-static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-			     struct nfs4_link_res *res)
+static int nfs4_xdr_dec_link(void *rqstp, struct xdr_stream *xdr,
+			     void *_res)
 {
+	struct nfs4_link_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6267,9 +6329,10 @@ out:
 /*
  * Decode CREATE response
  */
-static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-			       struct nfs4_create_res *res)
+static int nfs4_xdr_dec_create(void *rqstp, struct xdr_stream *xdr,
+			       void *_res)
 {
+	struct nfs4_create_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6296,8 +6359,8 @@ out:
 /*
  * Decode SYMLINK response
  */
-static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-				struct nfs4_create_res *res)
+static int nfs4_xdr_dec_symlink(void *rqstp, struct xdr_stream *xdr,
+				void *res)
 {
 	return nfs4_xdr_dec_create(rqstp, xdr, res);
 }
@@ -6305,9 +6368,10 @@ static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
 /*
  * Decode GETATTR response
  */
-static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-				struct nfs4_getattr_res *res)
+static int nfs4_xdr_dec_getattr(void *rqstp, struct xdr_stream *xdr,
+				void *_res)
 {
+	struct nfs4_getattr_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6328,9 +6392,10 @@ out:
 /*
  * Encode an SETACL request
  */
-static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr,
-				struct nfs_setaclargs *args)
+static void nfs4_xdr_enc_setacl(void *req, struct xdr_stream *xdr,
+				void *_args)
 {
+	struct nfs_setaclargs *args = _args;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -6346,9 +6411,10 @@ static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr,
  * Decode SETACL response
  */
 static int
-nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-		    struct nfs_setaclres *res)
+nfs4_xdr_dec_setacl(void *rqstp, struct xdr_stream *xdr,
+		    void *_res)
 {
+	struct nfs_setaclres *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6370,9 +6436,10 @@ out:
  * Decode GETACL response
  */
 static int
-nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-		    struct nfs_getaclres *res)
+nfs4_xdr_dec_getacl(void *rqstp, struct xdr_stream *xdr,
+		    void *_res)
 {
+	struct nfs_getaclres *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6398,9 +6465,10 @@ out:
 /*
  * Decode CLOSE response
  */
-static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-			      struct nfs_closeres *res)
+static int nfs4_xdr_dec_close(void *rqstp, struct xdr_stream *xdr,
+			      void *_res)
 {
+	struct nfs_closeres *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6430,9 +6498,10 @@ out:
 /*
  * Decode OPEN response
  */
-static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-			     struct nfs_openres *res)
+static int nfs4_xdr_dec_open(void *rqstp, struct xdr_stream *xdr,
+			     void *_res)
 {
+	struct nfs_openres *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6461,9 +6530,9 @@ out:
 /*
  * Decode OPEN_CONFIRM response
  */
-static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_open_confirm(void *rqstp,
 				     struct xdr_stream *xdr,
-				     struct nfs_open_confirmres *res)
+				     void *res)
 {
 	struct compound_hdr hdr;
 	int status;
@@ -6482,10 +6551,11 @@ out:
 /*
  * Decode OPEN response
  */
-static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_open_noattr(void *rqstp,
 				    struct xdr_stream *xdr,
-				    struct nfs_openres *res)
+				    void *_res)
 {
+	struct nfs_openres *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6511,10 +6581,11 @@ out:
 /*
  * Decode SETATTR response
  */
-static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_setattr(void *rqstp,
 				struct xdr_stream *xdr,
-				struct nfs_setattrres *res)
+				void *_res)
 {
+	struct nfs_setattrres *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6538,9 +6609,10 @@ out:
 /*
  * Decode LOCK response
  */
-static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-			     struct nfs_lock_res *res)
+static int nfs4_xdr_dec_lock(void *rqstp, struct xdr_stream *xdr,
+			     void *_res)
 {
+	struct nfs_lock_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6561,9 +6633,10 @@ out:
 /*
  * Decode LOCKT response
  */
-static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-			      struct nfs_lockt_res *res)
+static int nfs4_xdr_dec_lockt(void *rqstp, struct xdr_stream *xdr,
+			      void *_res)
 {
+	struct nfs_lockt_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6584,9 +6657,10 @@ out:
 /*
  * Decode LOCKU response
  */
-static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-			      struct nfs_locku_res *res)
+static int nfs4_xdr_dec_locku(void *rqstp, struct xdr_stream *xdr,
+			      void *_res)
 {
+	struct nfs_locku_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6604,7 +6678,7 @@ out:
 	return status;
 }
 
-static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_release_lockowner(void *rqstp,
 					  struct xdr_stream *xdr, void *dummy)
 {
 	struct compound_hdr hdr;
@@ -6619,10 +6693,11 @@ static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp,
 /*
  * Decode READLINK response
  */
-static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_readlink(void *rqstp,
 				 struct xdr_stream *xdr,
-				 struct nfs4_readlink_res *res)
+				 void *_res)
 {
+	struct nfs4_readlink_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6643,9 +6718,10 @@ out:
 /*
  * Decode READDIR response
  */
-static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-				struct nfs4_readdir_res *res)
+static int nfs4_xdr_dec_readdir(void *rqstp, struct xdr_stream *xdr,
+				void *_res)
 {
+	struct nfs4_readdir_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6666,9 +6742,10 @@ out:
 /*
  * Decode Read response
  */
-static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-			     struct nfs_pgio_res *res)
+static int nfs4_xdr_dec_read(void *rqstp, struct xdr_stream *xdr,
+			     void *_res)
 {
+	struct nfs_pgio_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6692,9 +6769,10 @@ out:
 /*
  * Decode WRITE response
  */
-static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-			      struct nfs_pgio_res *res)
+static int nfs4_xdr_dec_write(void *rqstp, struct xdr_stream *xdr,
+			      void *_res)
 {
+	struct nfs_pgio_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6722,9 +6800,10 @@ out:
 /*
  * Decode COMMIT response
  */
-static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-			       struct nfs_commitres *res)
+static int nfs4_xdr_dec_commit(void *rqstp, struct xdr_stream *xdr,
+			       void *_res)
 {
+	struct nfs_commitres *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6746,9 +6825,10 @@ out:
 /*
  * Decode FSINFO response
  */
-static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
-			       struct nfs4_fsinfo_res *res)
+static int nfs4_xdr_dec_fsinfo(void *req, struct xdr_stream *xdr,
+			       void *_res)
 {
+	struct nfs4_fsinfo_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6765,9 +6845,10 @@ static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
 /*
  * Decode PATHCONF response
  */
-static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
-				 struct nfs4_pathconf_res *res)
+static int nfs4_xdr_dec_pathconf(void *req, struct xdr_stream *xdr,
+				 void *_res)
 {
+	struct nfs4_pathconf_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6784,9 +6865,10 @@ static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
 /*
  * Decode STATFS response
  */
-static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
-			       struct nfs4_statfs_res *res)
+static int nfs4_xdr_dec_statfs(void *req, struct xdr_stream *xdr,
+			       void *_res)
 {
+	struct nfs4_statfs_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6803,10 +6885,11 @@ static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
 /*
  * Decode GETATTR_BITMAP response
  */
-static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req,
+static int nfs4_xdr_dec_server_caps(void *req,
 				    struct xdr_stream *xdr,
-				    struct nfs4_server_caps_res *res)
+				    void *_res)
 {
+	struct nfs4_server_caps_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6827,7 +6910,7 @@ out:
 /*
  * Decode RENEW response
  */
-static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
+static int nfs4_xdr_dec_renew(void *rqstp, struct xdr_stream *xdr,
 			      void *__unused)
 {
 	struct compound_hdr hdr;
@@ -6842,9 +6925,9 @@ static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
 /*
  * Decode SETCLIENTID response
  */
-static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req,
+static int nfs4_xdr_dec_setclientid(void *req,
 				    struct xdr_stream *xdr,
-				    struct nfs4_setclientid_res *res)
+				    void *res)
 {
 	struct compound_hdr hdr;
 	int status;
@@ -6858,8 +6941,9 @@ static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req,
 /*
  * Decode SETCLIENTID_CONFIRM response
  */
-static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req,
-					    struct xdr_stream *xdr)
+static int nfs4_xdr_dec_setclientid_confirm(void *req,
+					    struct xdr_stream *xdr,
+					    void *res)
 {
 	struct compound_hdr hdr;
 	int status;
@@ -6873,10 +6957,11 @@ static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req,
 /*
  * Decode DELEGRETURN response
  */
-static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_delegreturn(void *rqstp,
 				    struct xdr_stream *xdr,
-				    struct nfs4_delegreturnres *res)
+				    void *_res)
 {
+	struct nfs4_delegreturnres *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6900,10 +6985,11 @@ out:
 /*
  * Decode FS_LOCATIONS response
  */
-static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req,
+static int nfs4_xdr_dec_fs_locations(void *req,
 				     struct xdr_stream *xdr,
-				     struct nfs4_fs_locations_res *res)
+				     void *_res)
 {
+	struct nfs4_fs_locations_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6943,10 +7029,11 @@ out:
 /*
  * Decode SECINFO response
  */
-static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_secinfo(void *rqstp,
 				struct xdr_stream *xdr,
-				struct nfs4_secinfo_res *res)
+				void *_res)
 {
+	struct nfs4_secinfo_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6967,10 +7054,11 @@ out:
 /*
  * Decode FSID_PRESENT response
  */
-static int nfs4_xdr_dec_fsid_present(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_fsid_present(void *rqstp,
 				     struct xdr_stream *xdr,
-				     struct nfs4_fsid_present_res *res)
+				     void *_res)
 {
+	struct nfs4_fsid_present_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6996,7 +7084,7 @@ out:
 /*
  * Decode BIND_CONN_TO_SESSION response
  */
-static int nfs4_xdr_dec_bind_conn_to_session(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_bind_conn_to_session(void *rqstp,
 					struct xdr_stream *xdr,
 					void *res)
 {
@@ -7012,7 +7100,7 @@ static int nfs4_xdr_dec_bind_conn_to_session(struct rpc_rqst *rqstp,
 /*
  * Decode EXCHANGE_ID response
  */
-static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_exchange_id(void *rqstp,
 				    struct xdr_stream *xdr,
 				    void *res)
 {
@@ -7028,9 +7116,9 @@ static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp,
 /*
  * Decode CREATE_SESSION response
  */
-static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_create_session(void *rqstp,
 				       struct xdr_stream *xdr,
-				       struct nfs41_create_session_res *res)
+				       void *res)
 {
 	struct compound_hdr hdr;
 	int status;
@@ -7044,7 +7132,7 @@ static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp,
 /*
  * Decode DESTROY_SESSION response
  */
-static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_destroy_session(void *rqstp,
 					struct xdr_stream *xdr,
 					void *res)
 {
@@ -7060,7 +7148,7 @@ static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp,
 /*
  * Decode DESTROY_CLIENTID response
  */
-static int nfs4_xdr_dec_destroy_clientid(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_destroy_clientid(void *rqstp,
 					struct xdr_stream *xdr,
 					void *res)
 {
@@ -7076,9 +7164,9 @@ static int nfs4_xdr_dec_destroy_clientid(struct rpc_rqst *rqstp,
 /*
  * Decode SEQUENCE response
  */
-static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_sequence(void *rqstp,
 				 struct xdr_stream *xdr,
-				 struct nfs4_sequence_res *res)
+				 void *res)
 {
 	struct compound_hdr hdr;
 	int status;
@@ -7092,10 +7180,11 @@ static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp,
 /*
  * Decode GET_LEASE_TIME response
  */
-static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_get_lease_time(void *rqstp,
 				       struct xdr_stream *xdr,
-				       struct nfs4_get_lease_time_res *res)
+				       void *_res)
 {
+	struct nfs4_get_lease_time_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -7112,10 +7201,11 @@ static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp,
 /*
  * Decode RECLAIM_COMPLETE response
  */
-static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_reclaim_complete(void *rqstp,
 					 struct xdr_stream *xdr,
-					 struct nfs41_reclaim_complete_res *res)
+					 void *_res)
 {
+	struct nfs41_reclaim_complete_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -7130,10 +7220,11 @@ static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp,
 /*
  * Decode GETDEVINFO response
  */
-static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_getdeviceinfo(void *rqstp,
 				      struct xdr_stream *xdr,
-				      struct nfs4_getdeviceinfo_res *res)
+				      void *_res)
 {
+	struct nfs4_getdeviceinfo_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -7151,10 +7242,11 @@ out:
 /*
  * Decode LAYOUTGET response
  */
-static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_layoutget(void *rqstp,
 				  struct xdr_stream *xdr,
-				  struct nfs4_layoutget_res *res)
+				  void *_res)
 {
+	struct nfs4_layoutget_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -7175,10 +7267,11 @@ out:
 /*
  * Decode LAYOUTRETURN response
  */
-static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_layoutreturn(void *rqstp,
 				     struct xdr_stream *xdr,
-				     struct nfs4_layoutreturn_res *res)
+				     void *_res)
 {
+	struct nfs4_layoutreturn_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -7199,10 +7292,11 @@ out:
 /*
  * Decode LAYOUTCOMMIT response
  */
-static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_layoutcommit(void *rqstp,
 				     struct xdr_stream *xdr,
-				     struct nfs4_layoutcommit_res *res)
+				     void *_res)
 {
+	struct nfs4_layoutcommit_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -7226,10 +7320,11 @@ out:
 /*
  * Decode SECINFO_NO_NAME response
  */
-static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_secinfo_no_name(void *rqstp,
 					struct xdr_stream *xdr,
-					struct nfs4_secinfo_res *res)
+					void *_res)
 {
+	struct nfs4_secinfo_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -7250,10 +7345,11 @@ out:
 /*
  * Decode TEST_STATEID response
  */
-static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_test_stateid(void *rqstp,
 				     struct xdr_stream *xdr,
-				     struct nfs41_test_stateid_res *res)
+				     void *_res)
 {
+	struct nfs41_test_stateid_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -7271,10 +7367,11 @@ out:
 /*
  * Decode FREE_STATEID response
  */
-static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_free_stateid(void *rqstp,
 				     struct xdr_stream *xdr,
-				     struct nfs41_free_stateid_res *res)
+				     void *_res)
 {
+	struct nfs41_free_stateid_res *res = _res;
 	struct compound_hdr hdr;
 	int status;
 
@@ -7439,8 +7536,8 @@ nfs4_stat_to_errno(int stat)
 #define PROC(proc, argtype, restype)				\
 [NFSPROC4_CLNT_##proc] = {					\
 	.p_proc   = NFSPROC4_COMPOUND,				\
-	.p_encode = (kxdreproc_t)nfs4_xdr_##argtype,		\
-	.p_decode = (kxdrdproc_t)nfs4_xdr_##restype,		\
+	.p_encode = nfs4_xdr_##argtype,				\
+	.p_decode = nfs4_xdr_##restype,				\
 	.p_arglen = NFS4_##argtype##_sz,			\
 	.p_replen = NFS4_##restype##_sz,			\
 	.p_statidx = NFSPROC4_CLNT_##proc,			\
diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index 6776d7a..f018f72 100644
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -346,7 +346,7 @@ struct nfs_readdesc {
 };
 
 static int
-readpage_async_filler(void *data, struct page *page)
+readpage_async_filler(struct file *data, struct page *page)
 {
 	struct nfs_readdesc *desc = (struct nfs_readdesc *)data;
 	struct nfs_page *new;
diff --git a/fs/nfs/symlink.c b/fs/nfs/symlink.c
index 4fe3eea..8922b2b 100644
--- a/fs/nfs/symlink.c
+++ b/fs/nfs/symlink.c
@@ -25,9 +25,10 @@
  * and straight-forward than readdir caching.
  */
 
-static int nfs_symlink_filler(struct inode *inode, struct page *page)
+static int nfs_symlink_filler(struct file *_inode, struct page *page)
 {
 	int error;
+	struct inode *inode = (struct inode *)_inode;
 
 	error = NFS_PROTO(inode)->readlink(inode, page, 0, PAGE_SIZE);
 	if (error < 0)
@@ -64,8 +65,7 @@ static const char *nfs_get_link(struct dentry *dentry,
 		err = ERR_PTR(nfs_revalidate_mapping(inode, inode->i_mapping));
 		if (err)
 			return err;
-		page = read_cache_page(&inode->i_data, 0,
-					(filler_t *)nfs_symlink_filler, inode);
+		page = read_cache_page(&inode->i_data, 0, nfs_symlink_filler, inode);
 		if (IS_ERR(page))
 			return ERR_CAST(page);
 	}
diff --git a/fs/nfsd/current_stateid.h b/fs/nfsd/current_stateid.h
index 4123551..813b403 100644
--- a/fs/nfsd/current_stateid.h
+++ b/fs/nfsd/current_stateid.h
@@ -8,21 +8,21 @@ extern void clear_current_stateid(struct nfsd4_compound_state *cstate);
 /*
  * functions to set current state id
  */
-extern void nfsd4_set_opendowngradestateid(struct nfsd4_compound_state *cstate, struct nfsd4_open_downgrade *);
-extern void nfsd4_set_openstateid(struct nfsd4_compound_state *, struct nfsd4_open *);
-extern void nfsd4_set_lockstateid(struct nfsd4_compound_state *, struct nfsd4_lock *);
-extern void nfsd4_set_closestateid(struct nfsd4_compound_state *, struct nfsd4_close *);
+extern void nfsd4_set_opendowngradestateid(struct nfsd4_compound_state *cstate, void *);
+extern void nfsd4_set_openstateid(struct nfsd4_compound_state *, void *);
+extern void nfsd4_set_lockstateid(struct nfsd4_compound_state *, void *);
+extern void nfsd4_set_closestateid(struct nfsd4_compound_state *, void *);
 
 /*
  * functions to consume current state id
  */
-extern void nfsd4_get_opendowngradestateid(struct nfsd4_compound_state *cstate, struct nfsd4_open_downgrade *);
-extern void nfsd4_get_delegreturnstateid(struct nfsd4_compound_state *, struct nfsd4_delegreturn *);
-extern void nfsd4_get_freestateid(struct nfsd4_compound_state *, struct nfsd4_free_stateid *);
-extern void nfsd4_get_setattrstateid(struct nfsd4_compound_state *, struct nfsd4_setattr *);
-extern void nfsd4_get_closestateid(struct nfsd4_compound_state *, struct nfsd4_close *);
-extern void nfsd4_get_lockustateid(struct nfsd4_compound_state *, struct nfsd4_locku *);
-extern void nfsd4_get_readstateid(struct nfsd4_compound_state *, struct nfsd4_read *);
-extern void nfsd4_get_writestateid(struct nfsd4_compound_state *, struct nfsd4_write *);
+extern void nfsd4_get_opendowngradestateid(struct nfsd4_compound_state *cstate, void *);
+extern void nfsd4_get_delegreturnstateid(struct nfsd4_compound_state *, void *);
+extern void nfsd4_get_freestateid(struct nfsd4_compound_state *, void *);
+extern void nfsd4_get_setattrstateid(struct nfsd4_compound_state *, void *);
+extern void nfsd4_get_closestateid(struct nfsd4_compound_state *, void *);
+extern void nfsd4_get_lockustateid(struct nfsd4_compound_state *, void *);
+extern void nfsd4_get_readstateid(struct nfsd4_compound_state *, void *);
+extern void nfsd4_get_writestateid(struct nfsd4_compound_state *, void *);
 
 #endif   /* _NFSD4_CURRENT_STATE_H */
diff --git a/fs/nfsd/nfs2acl.c b/fs/nfsd/nfs2acl.c
index 1580ea6..5d74e50 100644
--- a/fs/nfsd/nfs2acl.c
+++ b/fs/nfsd/nfs2acl.c
@@ -27,9 +27,10 @@ nfsacld_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
 /*
  * Get the Access and/or Default ACL of a file.
  */
-static __be32 nfsacld_proc_getacl(struct svc_rqst * rqstp,
-		struct nfsd3_getaclargs *argp, struct nfsd3_getaclres *resp)
+static __be32 nfsacld_proc_getacl(struct svc_rqst * rqstp, void *_argp, void *_resp)
 {
+	struct nfsd3_getaclargs *argp = _argp;
+	struct nfsd3_getaclres *resp = _resp;
 	struct posix_acl *acl;
 	struct inode *inode;
 	svc_fh *fh;
@@ -87,10 +88,10 @@ fail:
 /*
  * Set the Access and/or Default ACL of a file.
  */
-static __be32 nfsacld_proc_setacl(struct svc_rqst * rqstp,
-		struct nfsd3_setaclargs *argp,
-		struct nfsd_attrstat *resp)
+static __be32 nfsacld_proc_setacl(struct svc_rqst * rqstp, void *_argp, void *_resp)
 {
+	struct nfsd3_setaclargs *argp = _argp;
+	struct nfsd_attrstat *resp = _resp;
 	struct inode *inode;
 	svc_fh *fh;
 	__be32 nfserr = 0;
@@ -104,22 +105,21 @@ static __be32 nfsacld_proc_setacl(struct svc_rqst * rqstp,
 		goto out;
 
 	inode = d_inode(fh->fh_dentry);
-	if (!IS_POSIXACL(inode) || !inode->i_op->set_acl) {
-		error = -EOPNOTSUPP;
-		goto out_errno;
-	}
 
 	error = fh_want_write(fh);
 	if (error)
 		goto out_errno;
 
-	error = inode->i_op->set_acl(inode, argp->acl_access, ACL_TYPE_ACCESS);
+	fh_lock(fh);
+
+	error = set_posix_acl(inode, ACL_TYPE_ACCESS, argp->acl_access);
 	if (error)
-		goto out_drop_write;
-	error = inode->i_op->set_acl(inode, argp->acl_default,
-				     ACL_TYPE_DEFAULT);
+		goto out_drop_lock;
+	error = set_posix_acl(inode, ACL_TYPE_DEFAULT, argp->acl_default);
 	if (error)
-		goto out_drop_write;
+		goto out_drop_lock;
+
+	fh_unlock(fh);
 
 	fh_drop_write(fh);
 
@@ -131,7 +131,8 @@ out:
 	posix_acl_release(argp->acl_access);
 	posix_acl_release(argp->acl_default);
 	return nfserr;
-out_drop_write:
+out_drop_lock:
+	fh_unlock(fh);
 	fh_drop_write(fh);
 out_errno:
 	nfserr = nfserrno(error);
@@ -141,9 +142,10 @@ out_errno:
 /*
  * Check file attributes
  */
-static __be32 nfsacld_proc_getattr(struct svc_rqst * rqstp,
-		struct nfsd_fhandle *argp, struct nfsd_attrstat *resp)
+static __be32 nfsacld_proc_getattr(struct svc_rqst * rqstp, void *_argp, void *_resp)
 {
+	struct nfsd_fhandle *argp = _argp;
+	struct nfsd_attrstat *resp = _resp;
 	__be32 nfserr;
 	dprintk("nfsd: GETATTR  %s\n", SVCFH_fmt(&argp->fh));
 
@@ -158,9 +160,10 @@ static __be32 nfsacld_proc_getattr(struct svc_rqst * rqstp,
 /*
  * Check file access
  */
-static __be32 nfsacld_proc_access(struct svc_rqst *rqstp, struct nfsd3_accessargs *argp,
-		struct nfsd3_accessres *resp)
+static __be32 nfsacld_proc_access(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nfsd3_accessargs *argp = _argp;
+	struct nfsd3_accessres *resp = _resp;
 	__be32 nfserr;
 
 	dprintk("nfsd: ACCESS(2acl)   %s 0x%x\n",
@@ -179,9 +182,10 @@ static __be32 nfsacld_proc_access(struct svc_rqst *rqstp, struct nfsd3_accessarg
 /*
  * XDR decode functions
  */
-static int nfsaclsvc_decode_getaclargs(struct svc_rqst *rqstp, __be32 *p,
-		struct nfsd3_getaclargs *argp)
+static int nfsaclsvc_decode_getaclargs(void *rqstp, __be32 *p, void *_argp)
 {
+	struct nfsd3_getaclargs *argp = _argp;
+
 	p = nfs2svc_decode_fh(p, &argp->fh);
 	if (!p)
 		return 0;
@@ -191,9 +195,10 @@ static int nfsaclsvc_decode_getaclargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 
-static int nfsaclsvc_decode_setaclargs(struct svc_rqst *rqstp, __be32 *p,
-		struct nfsd3_setaclargs *argp)
+static int nfsaclsvc_decode_setaclargs(void *_rqstp, __be32 *p, void *_argp)
 {
+	struct svc_rqst *rqstp = _rqstp;
+	struct nfsd3_setaclargs *argp = _argp;
 	struct kvec *head = rqstp->rq_arg.head;
 	unsigned int base;
 	int n;
@@ -217,18 +222,20 @@ static int nfsaclsvc_decode_setaclargs(struct svc_rqst *rqstp, __be32 *p,
 	return (n > 0);
 }
 
-static int nfsaclsvc_decode_fhandleargs(struct svc_rqst *rqstp, __be32 *p,
-		struct nfsd_fhandle *argp)
+static int nfsaclsvc_decode_fhandleargs(void *rqstp, __be32 *p, void *_argp)
 {
+	struct nfsd_fhandle *argp = _argp;
+
 	p = nfs2svc_decode_fh(p, &argp->fh);
 	if (!p)
 		return 0;
 	return xdr_argsize_check(rqstp, p);
 }
 
-static int nfsaclsvc_decode_accessargs(struct svc_rqst *rqstp, __be32 *p,
-		struct nfsd3_accessargs *argp)
+static int nfsaclsvc_decode_accessargs(void *rqstp, __be32 *p, void *_argp)
 {
+	struct nfsd3_accessargs *argp = _argp;
+
 	p = nfs2svc_decode_fh(p, &argp->fh);
 	if (!p)
 		return 0;
@@ -245,15 +252,16 @@ static int nfsaclsvc_decode_accessargs(struct svc_rqst *rqstp, __be32 *p,
  * There must be an encoding function for void results so svc_process
  * will work properly.
  */
-static int nfsaclsvc_encode_voidres(struct svc_rqst *rqstp, __be32 *p, void *dummy)
+static int nfsaclsvc_encode_voidres(void *rqstp, __be32 *p, void *dummy)
 {
 	return xdr_ressize_check(rqstp, p);
 }
 
 /* GETACL */
-static int nfsaclsvc_encode_getaclres(struct svc_rqst *rqstp, __be32 *p,
-		struct nfsd3_getaclres *resp)
+static int nfsaclsvc_encode_getaclres(void *_rqstp, __be32 *p, void *_resp)
 {
+	struct svc_rqst *rqstp = _rqstp;
+	struct nfsd3_getaclres *resp = _resp;
 	struct dentry *dentry = resp->fh.fh_dentry;
 	struct inode *inode;
 	struct kvec *head = rqstp->rq_res.head;
@@ -296,17 +304,19 @@ static int nfsaclsvc_encode_getaclres(struct svc_rqst *rqstp, __be32 *p,
 	return (n > 0);
 }
 
-static int nfsaclsvc_encode_attrstatres(struct svc_rqst *rqstp, __be32 *p,
-		struct nfsd_attrstat *resp)
+static int nfsaclsvc_encode_attrstatres(void *rqstp, __be32 *p, void *_resp)
 {
+	struct nfsd_attrstat *resp = _resp;
+
 	p = nfs2svc_encode_fattr(rqstp, p, &resp->fh, &resp->stat);
 	return xdr_ressize_check(rqstp, p);
 }
 
 /* ACCESS */
-static int nfsaclsvc_encode_accessres(struct svc_rqst *rqstp, __be32 *p,
-		struct nfsd3_accessres *resp)
+static int nfsaclsvc_encode_accessres(void *rqstp, __be32 *p, void *_resp)
 {
+	struct nfsd3_accessres *resp = _resp;
+
 	p = nfs2svc_encode_fattr(rqstp, p, &resp->fh, &resp->stat);
 	*p++ = htonl(resp->access);
 	return xdr_ressize_check(rqstp, p);
@@ -315,27 +325,30 @@ static int nfsaclsvc_encode_accessres(struct svc_rqst *rqstp, __be32 *p,
 /*
  * XDR release functions
  */
-static int nfsaclsvc_release_getacl(struct svc_rqst *rqstp, __be32 *p,
-		struct nfsd3_getaclres *resp)
+static int nfsaclsvc_release_getacl(void *rqstp, __be32 *p, void *_resp)
 {
+	struct nfsd3_getaclres *resp = _resp;
+
 	fh_put(&resp->fh);
 	posix_acl_release(resp->acl_access);
 	posix_acl_release(resp->acl_default);
 	return 1;
 }
 
-static int nfsaclsvc_release_attrstat(struct svc_rqst *rqstp, __be32 *p,
-		struct nfsd_attrstat *resp)
+static int nfsaclsvc_release_attrstat(void *rqstp, __be32 *p, void *_resp)
 {
+	struct nfsd_attrstat *resp = _resp;
+
 	fh_put(&resp->fh);
 	return 1;
 }
 
-static int nfsaclsvc_release_access(struct svc_rqst *rqstp, __be32 *p,
-               struct nfsd3_accessres *resp)
+static int nfsaclsvc_release_access(void *rqstp, __be32 *p, void *_resp)
 {
-       fh_put(&resp->fh);
-       return 1;
+	struct nfsd3_accessres *resp = _resp;
+
+	fh_put(&resp->fh);
+	return 1;
 }
 
 #define nfsaclsvc_decode_voidargs	NULL
@@ -346,10 +359,10 @@ static int nfsaclsvc_release_access(struct svc_rqst *rqstp, __be32 *p,
 struct nfsd3_voidargs { int dummy; };
 
 #define PROC(name, argt, rest, relt, cache, respsize)	\
- { (svc_procfunc) nfsacld_proc_##name,		\
-   (kxdrproc_t) nfsaclsvc_decode_##argt##args,	\
-   (kxdrproc_t) nfsaclsvc_encode_##rest##res,	\
-   (kxdrproc_t) nfsaclsvc_release_##relt,		\
+ { nfsacld_proc_##name,				\
+   nfsaclsvc_decode_##argt##args,		\
+   nfsaclsvc_encode_##rest##res,		\
+   nfsaclsvc_release_##relt,			\
    sizeof(struct nfsd3_##argt##args),		\
    sizeof(struct nfsd3_##rest##res),		\
    0,						\
diff --git a/fs/nfsd/nfs3acl.c b/fs/nfsd/nfs3acl.c
index 01df4cd..36a8d76 100644
--- a/fs/nfsd/nfs3acl.c
+++ b/fs/nfsd/nfs3acl.c
@@ -26,9 +26,10 @@ nfsd3_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
 /*
  * Get the Access and/or Default ACL of a file.
  */
-static __be32 nfsd3_proc_getacl(struct svc_rqst * rqstp,
-		struct nfsd3_getaclargs *argp, struct nfsd3_getaclres *resp)
+static __be32 nfsd3_proc_getacl(struct svc_rqst * rqstp, void *_argp, void *_resp)
 {
+	struct nfsd3_getaclargs *argp = _argp;
+	struct nfsd3_getaclres *resp = _resp;
 	struct posix_acl *acl;
 	struct inode *inode;
 	svc_fh *fh;
@@ -80,10 +81,10 @@ fail:
 /*
  * Set the Access and/or Default ACL of a file.
  */
-static __be32 nfsd3_proc_setacl(struct svc_rqst * rqstp,
-		struct nfsd3_setaclargs *argp,
-		struct nfsd3_attrstat *resp)
+static __be32 nfsd3_proc_setacl(struct svc_rqst * rqstp, void *_argp, void *_resp)
 {
+	struct nfsd3_setaclargs *argp = _argp;
+	struct nfsd3_attrstat *resp = _resp;
 	struct inode *inode;
 	svc_fh *fh;
 	__be32 nfserr = 0;
@@ -95,22 +96,20 @@ static __be32 nfsd3_proc_setacl(struct svc_rqst * rqstp,
 		goto out;
 
 	inode = d_inode(fh->fh_dentry);
-	if (!IS_POSIXACL(inode) || !inode->i_op->set_acl) {
-		error = -EOPNOTSUPP;
-		goto out_errno;
-	}
 
 	error = fh_want_write(fh);
 	if (error)
 		goto out_errno;
 
-	error = inode->i_op->set_acl(inode, argp->acl_access, ACL_TYPE_ACCESS);
+	fh_lock(fh);
+
+	error = set_posix_acl(inode, ACL_TYPE_ACCESS, argp->acl_access);
 	if (error)
-		goto out_drop_write;
-	error = inode->i_op->set_acl(inode, argp->acl_default,
-				     ACL_TYPE_DEFAULT);
+		goto out_drop_lock;
+	error = set_posix_acl(inode, ACL_TYPE_DEFAULT, argp->acl_default);
 
-out_drop_write:
+out_drop_lock:
+	fh_unlock(fh);
 	fh_drop_write(fh);
 out_errno:
 	nfserr = nfserrno(error);
@@ -125,9 +124,10 @@ out:
 /*
  * XDR decode functions
  */
-static int nfs3svc_decode_getaclargs(struct svc_rqst *rqstp, __be32 *p,
-		struct nfsd3_getaclargs *args)
+static int nfs3svc_decode_getaclargs(void *rqstp, __be32 *p, void *_args)
 {
+	struct nfsd3_getaclargs *args = _args;
+
 	p = nfs3svc_decode_fh(p, &args->fh);
 	if (!p)
 		return 0;
@@ -137,9 +137,10 @@ static int nfs3svc_decode_getaclargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 
-static int nfs3svc_decode_setaclargs(struct svc_rqst *rqstp, __be32 *p,
-		struct nfsd3_setaclargs *args)
+static int nfs3svc_decode_setaclargs(void *_rqstp, __be32 *p, void *_args)
 {
+	struct svc_rqst *rqstp = _rqstp;
+	struct nfsd3_setaclargs *args = _args;
 	struct kvec *head = rqstp->rq_arg.head;
 	unsigned int base;
 	int n;
@@ -168,9 +169,10 @@ static int nfs3svc_decode_setaclargs(struct svc_rqst *rqstp, __be32 *p,
  */
 
 /* GETACL */
-static int nfs3svc_encode_getaclres(struct svc_rqst *rqstp, __be32 *p,
-		struct nfsd3_getaclres *resp)
+static int nfs3svc_encode_getaclres(void *_rqstp, __be32 *p, void *_resp)
 {
+	struct svc_rqst *rqstp = _rqstp;
+	struct nfsd3_getaclres *resp = _resp;
 	struct dentry *dentry = resp->fh.fh_dentry;
 
 	p = nfs3svc_encode_post_op_attr(rqstp, p, &resp->fh);
@@ -213,9 +215,10 @@ static int nfs3svc_encode_getaclres(struct svc_rqst *rqstp, __be32 *p,
 }
 
 /* SETACL */
-static int nfs3svc_encode_setaclres(struct svc_rqst *rqstp, __be32 *p,
-		struct nfsd3_attrstat *resp)
+static int nfs3svc_encode_setaclres(void *rqstp, __be32 *p, void *_resp)
 {
+	struct nfsd3_attrstat *resp = _resp;
+
 	p = nfs3svc_encode_post_op_attr(rqstp, p, &resp->fh);
 
 	return xdr_ressize_check(rqstp, p);
@@ -224,9 +227,10 @@ static int nfs3svc_encode_setaclres(struct svc_rqst *rqstp, __be32 *p,
 /*
  * XDR release functions
  */
-static int nfs3svc_release_getacl(struct svc_rqst *rqstp, __be32 *p,
-		struct nfsd3_getaclres *resp)
+static int nfs3svc_release_getacl(void *rqstp, __be32 *p, void *_resp)
 {
+	struct nfsd3_getaclres *resp = _resp;
+
 	fh_put(&resp->fh);
 	posix_acl_release(resp->acl_access);
 	posix_acl_release(resp->acl_default);
@@ -240,10 +244,10 @@ static int nfs3svc_release_getacl(struct svc_rqst *rqstp, __be32 *p,
 struct nfsd3_voidargs { int dummy; };
 
 #define PROC(name, argt, rest, relt, cache, respsize)	\
- { (svc_procfunc) nfsd3_proc_##name,		\
-   (kxdrproc_t) nfs3svc_decode_##argt##args,	\
-   (kxdrproc_t) nfs3svc_encode_##rest##res,	\
-   (kxdrproc_t) nfs3svc_release_##relt,		\
+ { nfsd3_proc_##name,				\
+   nfs3svc_decode_##argt##args,			\
+   nfs3svc_encode_##rest##res,			\
+   nfs3svc_release_##relt,			\
    sizeof(struct nfsd3_##argt##args),		\
    sizeof(struct nfsd3_##rest##res),		\
    0,						\
diff --git a/fs/nfsd/nfs3proc.c b/fs/nfsd/nfs3proc.c
index 51c3b06..aa8fcebc 100644
--- a/fs/nfsd/nfs3proc.c
+++ b/fs/nfsd/nfs3proc.c
@@ -40,9 +40,10 @@ nfsd3_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
  * Get a file's attributes
  */
 static __be32
-nfsd3_proc_getattr(struct svc_rqst *rqstp, struct nfsd_fhandle  *argp,
-					   struct nfsd3_attrstat *resp)
+nfsd3_proc_getattr(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nfsd_fhandle *argp = _argp;
+	struct nfsd3_attrstat *resp = _resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: GETATTR(3)  %s\n",
@@ -63,9 +64,10 @@ nfsd3_proc_getattr(struct svc_rqst *rqstp, struct nfsd_fhandle  *argp,
  * Set a file's attributes
  */
 static __be32
-nfsd3_proc_setattr(struct svc_rqst *rqstp, struct nfsd3_sattrargs *argp,
-					   struct nfsd3_attrstat  *resp)
+nfsd3_proc_setattr(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nfsd3_sattrargs *argp = _argp;
+	struct nfsd3_attrstat *resp = _resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: SETATTR(3)  %s\n",
@@ -81,9 +83,10 @@ nfsd3_proc_setattr(struct svc_rqst *rqstp, struct nfsd3_sattrargs *argp,
  * Look up a path name component
  */
 static __be32
-nfsd3_proc_lookup(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
-					  struct nfsd3_diropres  *resp)
+nfsd3_proc_lookup(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nfsd3_diropargs *argp = _argp;
+	struct nfsd3_diropres *resp = _resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: LOOKUP(3)   %s %.*s\n",
@@ -105,9 +108,10 @@ nfsd3_proc_lookup(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
  * Check file access
  */
 static __be32
-nfsd3_proc_access(struct svc_rqst *rqstp, struct nfsd3_accessargs *argp,
-					  struct nfsd3_accessres *resp)
+nfsd3_proc_access(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nfsd3_accessargs *argp = _argp;
+	struct nfsd3_accessres *resp = _resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: ACCESS(3)   %s 0x%x\n",
@@ -124,9 +128,10 @@ nfsd3_proc_access(struct svc_rqst *rqstp, struct nfsd3_accessargs *argp,
  * Read a symlink.
  */
 static __be32
-nfsd3_proc_readlink(struct svc_rqst *rqstp, struct nfsd3_readlinkargs *argp,
-					   struct nfsd3_readlinkres *resp)
+nfsd3_proc_readlink(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nfsd3_readlinkargs *argp = _argp;
+	struct nfsd3_readlinkres *resp = _resp;
 	__be32 nfserr;
 
 	dprintk("nfsd: READLINK(3) %s\n", SVCFH_fmt(&argp->fh));
@@ -142,9 +147,10 @@ nfsd3_proc_readlink(struct svc_rqst *rqstp, struct nfsd3_readlinkargs *argp,
  * Read a portion of a file.
  */
 static __be32
-nfsd3_proc_read(struct svc_rqst *rqstp, struct nfsd3_readargs *argp,
-				        struct nfsd3_readres  *resp)
+nfsd3_proc_read(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nfsd3_readargs *argp = _argp;
+	struct nfsd3_readres  *resp = _resp;
 	__be32	nfserr;
 	u32	max_blocksize = svc_max_payload(rqstp);
 	unsigned long cnt = min(argp->count, max_blocksize);
@@ -179,9 +185,10 @@ nfsd3_proc_read(struct svc_rqst *rqstp, struct nfsd3_readargs *argp,
  * Write data to a file
  */
 static __be32
-nfsd3_proc_write(struct svc_rqst *rqstp, struct nfsd3_writeargs *argp,
-					 struct nfsd3_writeres  *resp)
+nfsd3_proc_write(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nfsd3_writeargs *argp = _argp;
+	struct nfsd3_writeres *resp = _resp;
 	__be32	nfserr;
 	unsigned long cnt = argp->len;
 
@@ -208,9 +215,10 @@ nfsd3_proc_write(struct svc_rqst *rqstp, struct nfsd3_writeargs *argp,
  * first reports about SunOS compatibility problems start to pour in...
  */
 static __be32
-nfsd3_proc_create(struct svc_rqst *rqstp, struct nfsd3_createargs *argp,
-					  struct nfsd3_diropres   *resp)
+nfsd3_proc_create(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nfsd3_createargs *argp = _argp;
+	struct nfsd3_diropres *resp = _resp;
 	svc_fh		*dirfhp, *newfhp = NULL;
 	struct iattr	*attr;
 	__be32		nfserr;
@@ -245,9 +253,10 @@ nfsd3_proc_create(struct svc_rqst *rqstp, struct nfsd3_createargs *argp,
  * Make directory. This operation is not idempotent.
  */
 static __be32
-nfsd3_proc_mkdir(struct svc_rqst *rqstp, struct nfsd3_createargs *argp,
-					 struct nfsd3_diropres   *resp)
+nfsd3_proc_mkdir(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nfsd3_createargs *argp = _argp;
+	struct nfsd3_diropres *resp = _resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: MKDIR(3)    %s %.*s\n",
@@ -265,9 +274,10 @@ nfsd3_proc_mkdir(struct svc_rqst *rqstp, struct nfsd3_createargs *argp,
 }
 
 static __be32
-nfsd3_proc_symlink(struct svc_rqst *rqstp, struct nfsd3_symlinkargs *argp,
-					   struct nfsd3_diropres    *resp)
+nfsd3_proc_symlink(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nfsd3_symlinkargs *argp = _argp;
+	struct nfsd3_diropres *resp = _resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: SYMLINK(3)  %s %.*s -> %.*s\n",
@@ -286,9 +296,10 @@ nfsd3_proc_symlink(struct svc_rqst *rqstp, struct nfsd3_symlinkargs *argp,
  * Make socket/fifo/device.
  */
 static __be32
-nfsd3_proc_mknod(struct svc_rqst *rqstp, struct nfsd3_mknodargs *argp,
-					 struct nfsd3_diropres  *resp)
+nfsd3_proc_mknod(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nfsd3_mknodargs *argp = _argp;
+	struct nfsd3_diropres *resp = _resp;
 	__be32	nfserr;
 	int type;
 	dev_t	rdev = 0;
@@ -323,9 +334,10 @@ nfsd3_proc_mknod(struct svc_rqst *rqstp, struct nfsd3_mknodargs *argp,
  * Remove file/fifo/socket etc.
  */
 static __be32
-nfsd3_proc_remove(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
-					  struct nfsd3_attrstat  *resp)
+nfsd3_proc_remove(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nfsd3_diropargs *argp = _argp;
+	struct nfsd3_attrstat *resp = _resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: REMOVE(3)   %s %.*s\n",
@@ -344,9 +356,10 @@ nfsd3_proc_remove(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
  * Remove a directory
  */
 static __be32
-nfsd3_proc_rmdir(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
-					 struct nfsd3_attrstat  *resp)
+nfsd3_proc_rmdir(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nfsd3_diropargs *argp = _argp;
+	struct nfsd3_attrstat *resp = _resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: RMDIR(3)    %s %.*s\n",
@@ -361,9 +374,10 @@ nfsd3_proc_rmdir(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
 }
 
 static __be32
-nfsd3_proc_rename(struct svc_rqst *rqstp, struct nfsd3_renameargs *argp,
-					  struct nfsd3_renameres  *resp)
+nfsd3_proc_rename(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nfsd3_renameargs *argp = _argp;
+	struct nfsd3_renameres *resp = _resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: RENAME(3)   %s %.*s ->\n",
@@ -383,9 +397,10 @@ nfsd3_proc_rename(struct svc_rqst *rqstp, struct nfsd3_renameargs *argp,
 }
 
 static __be32
-nfsd3_proc_link(struct svc_rqst *rqstp, struct nfsd3_linkargs *argp,
-					struct nfsd3_linkres  *resp)
+nfsd3_proc_link(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nfsd3_linkargs *argp = _argp;
+	struct nfsd3_linkres *resp = _resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: LINK(3)     %s ->\n",
@@ -406,9 +421,10 @@ nfsd3_proc_link(struct svc_rqst *rqstp, struct nfsd3_linkargs *argp,
  * Read a portion of a directory.
  */
 static __be32
-nfsd3_proc_readdir(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp,
-					   struct nfsd3_readdirres  *resp)
+nfsd3_proc_readdir(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nfsd3_readdirargs *argp = _argp;
+	struct nfsd3_readdirres  *resp = _resp;
 	__be32		nfserr;
 	int		count;
 
@@ -442,9 +458,10 @@ nfsd3_proc_readdir(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp,
  * For now, we choose to ignore the dircount parameter.
  */
 static __be32
-nfsd3_proc_readdirplus(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp,
-					       struct nfsd3_readdirres  *resp)
+nfsd3_proc_readdirplus(struct svc_rqst *rqstp, void *_argp, void *_resp)
 {
+	struct nfsd3_readdirargs *argp = _argp;
+	struct nfsd3_readdirres  *resp = _resp;
 	__be32	nfserr;
 	int	count = 0;
 	loff_t	offset;
@@ -509,9 +526,10 @@ nfsd3_proc_readdirplus(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp,
  * Get file system stats
  */
 static __be32
-nfsd3_proc_fsstat(struct svc_rqst * rqstp, struct nfsd_fhandle    *argp,
-					   struct nfsd3_fsstatres *resp)
+nfsd3_proc_fsstat(struct svc_rqst * rqstp, void *_argp, void *_resp)
 {
+	struct nfsd_fhandle *argp = _argp;
+	struct nfsd3_fsstatres *resp = _resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: FSSTAT(3)   %s\n",
@@ -526,9 +544,10 @@ nfsd3_proc_fsstat(struct svc_rqst * rqstp, struct nfsd_fhandle    *argp,
  * Get file system info
  */
 static __be32
-nfsd3_proc_fsinfo(struct svc_rqst * rqstp, struct nfsd_fhandle    *argp,
-					   struct nfsd3_fsinfores *resp)
+nfsd3_proc_fsinfo(struct svc_rqst * rqstp, void *_argp, void *_resp)
 {
+	struct nfsd_fhandle *argp = _argp;
+	struct nfsd3_fsinfores *resp = _resp;
 	__be32	nfserr;
 	u32	max_blocksize = svc_max_payload(rqstp);
 
@@ -569,9 +588,10 @@ nfsd3_proc_fsinfo(struct svc_rqst * rqstp, struct nfsd_fhandle    *argp,
  * Get pathconf info for the specified file
  */
 static __be32
-nfsd3_proc_pathconf(struct svc_rqst * rqstp, struct nfsd_fhandle      *argp,
-					     struct nfsd3_pathconfres *resp)
+nfsd3_proc_pathconf(struct svc_rqst * rqstp, void *_argp, void *_resp)
 {
+	struct nfsd_fhandle *argp =  _argp;
+	struct nfsd3_pathconfres *resp = _resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: PATHCONF(3) %s\n",
@@ -612,9 +632,10 @@ nfsd3_proc_pathconf(struct svc_rqst * rqstp, struct nfsd_fhandle      *argp,
  * Commit a file (range) to stable storage.
  */
 static __be32
-nfsd3_proc_commit(struct svc_rqst * rqstp, struct nfsd3_commitargs *argp,
-					   struct nfsd3_commitres  *resp)
+nfsd3_proc_commit(struct svc_rqst * rqstp, void *_argp, void *_resp)
 {
+	struct nfsd3_commitargs *argp = _argp;
+	struct nfsd3_commitres *resp = _resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: COMMIT(3)   %s %u@%Lu\n",
@@ -669,213 +690,213 @@ struct nfsd3_voidargs { int dummy; };
 
 static struct svc_procedure		nfsd_procedures3[22] = {
 	[NFS3PROC_NULL] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_null,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_voidres,
+		.pc_func = nfsd3_proc_null,
+		.pc_encode = nfs3svc_encode_voidres,
 		.pc_argsize = sizeof(struct nfsd3_voidargs),
 		.pc_ressize = sizeof(struct nfsd3_voidres),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST,
 	},
 	[NFS3PROC_GETATTR] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_getattr,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_attrstatres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
+		.pc_func = nfsd3_proc_getattr,
+		.pc_decode = nfs3svc_decode_fhandleargs,
+		.pc_encode = nfs3svc_encode_attrstatres,
+		.pc_release = nfs3svc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd3_fhandleargs),
 		.pc_ressize = sizeof(struct nfsd3_attrstatres),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST+AT,
 	},
 	[NFS3PROC_SETATTR] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_setattr,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_sattrargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
+		.pc_func = nfsd3_proc_setattr,
+		.pc_decode = nfs3svc_decode_sattrargs,
+		.pc_encode = nfs3svc_encode_wccstatres,
+		.pc_release = nfs3svc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd3_sattrargs),
 		.pc_ressize = sizeof(struct nfsd3_wccstatres),
 		.pc_cachetype = RC_REPLBUFF,
 		.pc_xdrressize = ST+WC,
 	},
 	[NFS3PROC_LOOKUP] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_lookup,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_diropres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
+		.pc_func = nfsd3_proc_lookup,
+		.pc_decode = nfs3svc_decode_diropargs,
+		.pc_encode = nfs3svc_encode_diropres,
+		.pc_release = nfs3svc_release_fhandle2,
 		.pc_argsize = sizeof(struct nfsd3_diropargs),
 		.pc_ressize = sizeof(struct nfsd3_diropres),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST+FH+pAT+pAT,
 	},
 	[NFS3PROC_ACCESS] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_access,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_accessargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_accessres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
+		.pc_func = nfsd3_proc_access,
+		.pc_decode = nfs3svc_decode_accessargs,
+		.pc_encode = nfs3svc_encode_accessres,
+		.pc_release = nfs3svc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd3_accessargs),
 		.pc_ressize = sizeof(struct nfsd3_accessres),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST+pAT+1,
 	},
 	[NFS3PROC_READLINK] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_readlink,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_readlinkargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_readlinkres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
+		.pc_func = nfsd3_proc_readlink,
+		.pc_decode = nfs3svc_decode_readlinkargs,
+		.pc_encode = nfs3svc_encode_readlinkres,
+		.pc_release = nfs3svc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd3_readlinkargs),
 		.pc_ressize = sizeof(struct nfsd3_readlinkres),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST+pAT+1+NFS3_MAXPATHLEN/4,
 	},
 	[NFS3PROC_READ] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_read,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_readargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_readres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
+		.pc_func = nfsd3_proc_read,
+		.pc_decode = nfs3svc_decode_readargs,
+		.pc_encode = nfs3svc_encode_readres,
+		.pc_release = nfs3svc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd3_readargs),
 		.pc_ressize = sizeof(struct nfsd3_readres),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST+pAT+4+NFSSVC_MAXBLKSIZE/4,
 	},
 	[NFS3PROC_WRITE] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_write,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_writeargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_writeres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
+		.pc_func = nfsd3_proc_write,
+		.pc_decode = nfs3svc_decode_writeargs,
+		.pc_encode = nfs3svc_encode_writeres,
+		.pc_release = nfs3svc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd3_writeargs),
 		.pc_ressize = sizeof(struct nfsd3_writeres),
 		.pc_cachetype = RC_REPLBUFF,
 		.pc_xdrressize = ST+WC+4,
 	},
 	[NFS3PROC_CREATE] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_create,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_createargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
+		.pc_func = nfsd3_proc_create,
+		.pc_decode = nfs3svc_decode_createargs,
+		.pc_encode = nfs3svc_encode_createres,
+		.pc_release = nfs3svc_release_fhandle2,
 		.pc_argsize = sizeof(struct nfsd3_createargs),
 		.pc_ressize = sizeof(struct nfsd3_createres),
 		.pc_cachetype = RC_REPLBUFF,
 		.pc_xdrressize = ST+(1+FH+pAT)+WC,
 	},
 	[NFS3PROC_MKDIR] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_mkdir,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_mkdirargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
+		.pc_func = nfsd3_proc_mkdir,
+		.pc_decode = nfs3svc_decode_mkdirargs,
+		.pc_encode = nfs3svc_encode_createres,
+		.pc_release = nfs3svc_release_fhandle2,
 		.pc_argsize = sizeof(struct nfsd3_mkdirargs),
 		.pc_ressize = sizeof(struct nfsd3_createres),
 		.pc_cachetype = RC_REPLBUFF,
 		.pc_xdrressize = ST+(1+FH+pAT)+WC,
 	},
 	[NFS3PROC_SYMLINK] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_symlink,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_symlinkargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
+		.pc_func = nfsd3_proc_symlink,
+		.pc_decode = nfs3svc_decode_symlinkargs,
+		.pc_encode = nfs3svc_encode_createres,
+		.pc_release = nfs3svc_release_fhandle2,
 		.pc_argsize = sizeof(struct nfsd3_symlinkargs),
 		.pc_ressize = sizeof(struct nfsd3_createres),
 		.pc_cachetype = RC_REPLBUFF,
 		.pc_xdrressize = ST+(1+FH+pAT)+WC,
 	},
 	[NFS3PROC_MKNOD] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_mknod,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_mknodargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
+		.pc_func = nfsd3_proc_mknod,
+		.pc_decode = nfs3svc_decode_mknodargs,
+		.pc_encode = nfs3svc_encode_createres,
+		.pc_release = nfs3svc_release_fhandle2,
 		.pc_argsize = sizeof(struct nfsd3_mknodargs),
 		.pc_ressize = sizeof(struct nfsd3_createres),
 		.pc_cachetype = RC_REPLBUFF,
 		.pc_xdrressize = ST+(1+FH+pAT)+WC,
 	},
 	[NFS3PROC_REMOVE] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_remove,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
+		.pc_func = nfsd3_proc_remove,
+		.pc_decode = nfs3svc_decode_diropargs,
+		.pc_encode = nfs3svc_encode_wccstatres,
+		.pc_release = nfs3svc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd3_diropargs),
 		.pc_ressize = sizeof(struct nfsd3_wccstatres),
 		.pc_cachetype = RC_REPLBUFF,
 		.pc_xdrressize = ST+WC,
 	},
 	[NFS3PROC_RMDIR] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_rmdir,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
+		.pc_func = nfsd3_proc_rmdir,
+		.pc_decode = nfs3svc_decode_diropargs,
+		.pc_encode = nfs3svc_encode_wccstatres,
+		.pc_release = nfs3svc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd3_diropargs),
 		.pc_ressize = sizeof(struct nfsd3_wccstatres),
 		.pc_cachetype = RC_REPLBUFF,
 		.pc_xdrressize = ST+WC,
 	},
 	[NFS3PROC_RENAME] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_rename,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_renameargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_renameres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
+		.pc_func = nfsd3_proc_rename,
+		.pc_decode = nfs3svc_decode_renameargs,
+		.pc_encode = nfs3svc_encode_renameres,
+		.pc_release = nfs3svc_release_fhandle2,
 		.pc_argsize = sizeof(struct nfsd3_renameargs),
 		.pc_ressize = sizeof(struct nfsd3_renameres),
 		.pc_cachetype = RC_REPLBUFF,
 		.pc_xdrressize = ST+WC+WC,
 	},
 	[NFS3PROC_LINK] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_link,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_linkargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_linkres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
+		.pc_func = nfsd3_proc_link,
+		.pc_decode = nfs3svc_decode_linkargs,
+		.pc_encode = nfs3svc_encode_linkres,
+		.pc_release = nfs3svc_release_fhandle2,
 		.pc_argsize = sizeof(struct nfsd3_linkargs),
 		.pc_ressize = sizeof(struct nfsd3_linkres),
 		.pc_cachetype = RC_REPLBUFF,
 		.pc_xdrressize = ST+pAT+WC,
 	},
 	[NFS3PROC_READDIR] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_readdir,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_readdirargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_readdirres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
+		.pc_func = nfsd3_proc_readdir,
+		.pc_decode = nfs3svc_decode_readdirargs,
+		.pc_encode = nfs3svc_encode_readdirres,
+		.pc_release = nfs3svc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd3_readdirargs),
 		.pc_ressize = sizeof(struct nfsd3_readdirres),
 		.pc_cachetype = RC_NOCACHE,
 	},
 	[NFS3PROC_READDIRPLUS] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_readdirplus,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_readdirplusargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_readdirres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
+		.pc_func = nfsd3_proc_readdirplus,
+		.pc_decode = nfs3svc_decode_readdirplusargs,
+		.pc_encode = nfs3svc_encode_readdirres,
+		.pc_release = nfs3svc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd3_readdirplusargs),
 		.pc_ressize = sizeof(struct nfsd3_readdirres),
 		.pc_cachetype = RC_NOCACHE,
 	},
 	[NFS3PROC_FSSTAT] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_fsstat,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_fsstatres,
+		.pc_func = nfsd3_proc_fsstat,
+		.pc_decode = nfs3svc_decode_fhandleargs,
+		.pc_encode = nfs3svc_encode_fsstatres,
 		.pc_argsize = sizeof(struct nfsd3_fhandleargs),
 		.pc_ressize = sizeof(struct nfsd3_fsstatres),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST+pAT+2*6+1,
 	},
 	[NFS3PROC_FSINFO] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_fsinfo,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_fsinfores,
+		.pc_func = nfsd3_proc_fsinfo,
+		.pc_decode = nfs3svc_decode_fhandleargs,
+		.pc_encode = nfs3svc_encode_fsinfores,
 		.pc_argsize = sizeof(struct nfsd3_fhandleargs),
 		.pc_ressize = sizeof(struct nfsd3_fsinfores),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST+pAT+12,
 	},
 	[NFS3PROC_PATHCONF] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_pathconf,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_pathconfres,
+		.pc_func = nfsd3_proc_pathconf,
+		.pc_decode = nfs3svc_decode_fhandleargs,
+		.pc_encode = nfs3svc_encode_pathconfres,
 		.pc_argsize = sizeof(struct nfsd3_fhandleargs),
 		.pc_ressize = sizeof(struct nfsd3_pathconfres),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST+pAT+6,
 	},
 	[NFS3PROC_COMMIT] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_commit,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_commitargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_commitres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
+		.pc_func = nfsd3_proc_commit,
+		.pc_decode = nfs3svc_decode_commitargs,
+		.pc_encode = nfs3svc_encode_commitres,
+		.pc_release = nfs3svc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd3_commitargs),
 		.pc_ressize = sizeof(struct nfsd3_commitres),
 		.pc_cachetype = RC_NOCACHE,
diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c
index 2246454..b866de8 100644
--- a/fs/nfsd/nfs3xdr.c
+++ b/fs/nfsd/nfs3xdr.c
@@ -273,8 +273,10 @@ void fill_post_wcc(struct svc_fh *fhp)
  * XDR decode functions
  */
 int
-nfs3svc_decode_fhandle(struct svc_rqst *rqstp, __be32 *p, struct nfsd_fhandle *args)
+nfs3svc_decode_fhandle(void *rqstp, __be32 *p, void *_args)
 {
+	struct nfsd_fhandle *args = _args;
+
 	p = decode_fh(p, &args->fh);
 	if (!p)
 		return 0;
@@ -282,9 +284,10 @@ nfs3svc_decode_fhandle(struct svc_rqst *rqstp, __be32 *p, struct nfsd_fhandle *a
 }
 
 int
-nfs3svc_decode_sattrargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_sattrargs *args)
+nfs3svc_decode_sattrargs(void *rqstp, __be32 *p, void *_args)
 {
+	struct nfsd3_sattrargs *args = _args;
+
 	p = decode_fh(p, &args->fh);
 	if (!p)
 		return 0;
@@ -300,9 +303,10 @@ nfs3svc_decode_sattrargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfs3svc_decode_diropargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_diropargs *args)
+nfs3svc_decode_diropargs(void *rqstp, __be32 *p, void *_args)
 {
+	struct nfsd3_diropargs *args = _args;
+
 	if (!(p = decode_fh(p, &args->fh))
 	 || !(p = decode_filename(p, &args->name, &args->len)))
 		return 0;
@@ -311,9 +315,10 @@ nfs3svc_decode_diropargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfs3svc_decode_accessargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_accessargs *args)
+nfs3svc_decode_accessargs(void *rqstp, __be32 *p, void *_args)
 {
+	struct nfsd3_accessargs *args = _args;
+
 	p = decode_fh(p, &args->fh);
 	if (!p)
 		return 0;
@@ -323,9 +328,10 @@ nfs3svc_decode_accessargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfs3svc_decode_readargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_readargs *args)
+nfs3svc_decode_readargs(void *_rqstp, __be32 *p, void *_args)
 {
+	struct svc_rqst *rqstp = _rqstp;
+	struct nfsd3_readargs *args = _args;
 	unsigned int len;
 	int v;
 	u32 max_blocksize = svc_max_payload(rqstp);
@@ -353,9 +359,10 @@ nfs3svc_decode_readargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfs3svc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_writeargs *args)
+nfs3svc_decode_writeargs(void *_rqstp, __be32 *p, void *_args)
 {
+	struct svc_rqst *rqstp = _rqstp;
+	struct nfsd3_writeargs *args = _args;
 	unsigned int len, v, hdr, dlen;
 	u32 max_blocksize = svc_max_payload(rqstp);
 
@@ -410,9 +417,11 @@ nfs3svc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfs3svc_decode_createargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_createargs *args)
+nfs3svc_decode_createargs(void *_rqstp, __be32 *p, void *_args)
 {
+	struct svc_rqst *rqstp = _rqstp;
+	struct nfsd3_createargs *args = _args;
+
 	if (!(p = decode_fh(p, &args->fh))
 	 || !(p = decode_filename(p, &args->name, &args->len)))
 		return 0;
@@ -433,9 +442,10 @@ nfs3svc_decode_createargs(struct svc_rqst *rqstp, __be32 *p,
 	return xdr_argsize_check(rqstp, p);
 }
 int
-nfs3svc_decode_mkdirargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_createargs *args)
+nfs3svc_decode_mkdirargs(void *rqstp, __be32 *p, void *_args)
 {
+	struct nfsd3_createargs *args = _args;
+
 	if (!(p = decode_fh(p, &args->fh)) ||
 	    !(p = decode_filename(p, &args->name, &args->len)))
 		return 0;
@@ -445,9 +455,10 @@ nfs3svc_decode_mkdirargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfs3svc_decode_symlinkargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_symlinkargs *args)
+nfs3svc_decode_symlinkargs(void *_rqstp, __be32 *p, void *_args)
 {
+	struct svc_rqst *rqstp = _rqstp;
+	struct nfsd3_symlinkargs *args = _args;
 	unsigned int len, avail;
 	char *old, *new;
 	struct kvec *vec;
@@ -495,9 +506,10 @@ nfs3svc_decode_symlinkargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfs3svc_decode_mknodargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_mknodargs *args)
+nfs3svc_decode_mknodargs(void *rqstp, __be32 *p, void *_args)
 {
+	struct nfsd3_mknodargs *args = _args;
+
 	if (!(p = decode_fh(p, &args->fh))
 	 || !(p = decode_filename(p, &args->name, &args->len)))
 		return 0;
@@ -517,9 +529,10 @@ nfs3svc_decode_mknodargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfs3svc_decode_renameargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_renameargs *args)
+nfs3svc_decode_renameargs(void *rqstp, __be32 *p, void *_args)
 {
+	struct nfsd3_renameargs *args = _args;
+
 	if (!(p = decode_fh(p, &args->ffh))
 	 || !(p = decode_filename(p, &args->fname, &args->flen))
 	 || !(p = decode_fh(p, &args->tfh))
@@ -530,9 +543,11 @@ nfs3svc_decode_renameargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfs3svc_decode_readlinkargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_readlinkargs *args)
+nfs3svc_decode_readlinkargs(void *_rqstp, __be32 *p, void *_args)
 {
+	struct svc_rqst *rqstp = _rqstp;
+	struct nfsd3_readlinkargs *args = _args;
+
 	p = decode_fh(p, &args->fh);
 	if (!p)
 		return 0;
@@ -542,9 +557,10 @@ nfs3svc_decode_readlinkargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfs3svc_decode_linkargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_linkargs *args)
+nfs3svc_decode_linkargs(void *rqstp, __be32 *p, void *_args)
 {
+	struct nfsd3_linkargs *args = _args;
+
 	if (!(p = decode_fh(p, &args->ffh))
 	 || !(p = decode_fh(p, &args->tfh))
 	 || !(p = decode_filename(p, &args->tname, &args->tlen)))
@@ -554,9 +570,11 @@ nfs3svc_decode_linkargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfs3svc_decode_readdirargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_readdirargs *args)
+nfs3svc_decode_readdirargs(void *_rqstp, __be32 *p, void *_args)
 {
+	struct svc_rqst *rqstp = _rqstp;
+	struct nfsd3_readdirargs *args = _args;
+
 	p = decode_fh(p, &args->fh);
 	if (!p)
 		return 0;
@@ -571,9 +589,10 @@ nfs3svc_decode_readdirargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfs3svc_decode_readdirplusargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_readdirargs *args)
+nfs3svc_decode_readdirplusargs(void *_rqstp, __be32 *p, void *_args)
 {
+	struct svc_rqst *rqstp = _rqstp;
+	struct nfsd3_readdirargs *args = _args;
 	int len;
 	u32 max_blocksize = svc_max_payload(rqstp);
 
@@ -597,9 +616,10 @@ nfs3svc_decode_readdirplusargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfs3svc_decode_commitargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_commitargs *args)
+nfs3svc_decode_commitargs(void *rqstp, __be32 *p, void *_args)
 {
+	struct nfsd3_commitargs *args = _args;
+
 	p = decode_fh(p, &args->fh);
 	if (!p)
 		return 0;
@@ -617,16 +637,17 @@ nfs3svc_decode_commitargs(struct svc_rqst *rqstp, __be32 *p,
  * will work properly.
  */
 int
-nfs3svc_encode_voidres(struct svc_rqst *rqstp, __be32 *p, void *dummy)
+nfs3svc_encode_voidres(void *rqstp, __be32 *p, void *dummy)
 {
 	return xdr_ressize_check(rqstp, p);
 }
 
 /* GETATTR */
 int
-nfs3svc_encode_attrstat(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_attrstat *resp)
+nfs3svc_encode_attrstat(void *rqstp, __be32 *p, void *_resp)
 {
+	struct nfsd3_attrstat *resp = _resp;
+
 	if (resp->status == 0) {
 		lease_get_mtime(d_inode(resp->fh.fh_dentry),
 				&resp->stat.mtime);
@@ -637,18 +658,20 @@ nfs3svc_encode_attrstat(struct svc_rqst *rqstp, __be32 *p,
 
 /* SETATTR, REMOVE, RMDIR */
 int
-nfs3svc_encode_wccstat(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_attrstat *resp)
+nfs3svc_encode_wccstat(void *rqstp, __be32 *p, void *_resp)
 {
+	struct nfsd3_attrstat *resp = _resp;
+
 	p = encode_wcc_data(rqstp, p, &resp->fh);
 	return xdr_ressize_check(rqstp, p);
 }
 
 /* LOOKUP */
 int
-nfs3svc_encode_diropres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_diropres *resp)
+nfs3svc_encode_diropres(void *rqstp, __be32 *p, void *_resp)
 {
+	struct nfsd3_diropres *resp = _resp;
+
 	if (resp->status == 0) {
 		p = encode_fh(p, &resp->fh);
 		p = encode_post_op_attr(rqstp, p, &resp->fh);
@@ -659,9 +682,10 @@ nfs3svc_encode_diropres(struct svc_rqst *rqstp, __be32 *p,
 
 /* ACCESS */
 int
-nfs3svc_encode_accessres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_accessres *resp)
+nfs3svc_encode_accessres(void *rqstp, __be32 *p, void *_resp)
 {
+	struct nfsd3_accessres *resp = _resp;
+
 	p = encode_post_op_attr(rqstp, p, &resp->fh);
 	if (resp->status == 0)
 		*p++ = htonl(resp->access);
@@ -670,9 +694,11 @@ nfs3svc_encode_accessres(struct svc_rqst *rqstp, __be32 *p,
 
 /* READLINK */
 int
-nfs3svc_encode_readlinkres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_readlinkres *resp)
+nfs3svc_encode_readlinkres(void *_rqstp, __be32 *p, void *_resp)
 {
+	struct svc_rqst *rqstp = _rqstp;
+	struct nfsd3_readlinkres *resp = _resp;
+
 	p = encode_post_op_attr(rqstp, p, &resp->fh);
 	if (resp->status == 0) {
 		*p++ = htonl(resp->len);
@@ -691,9 +717,11 @@ nfs3svc_encode_readlinkres(struct svc_rqst *rqstp, __be32 *p,
 
 /* READ */
 int
-nfs3svc_encode_readres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_readres *resp)
+nfs3svc_encode_readres(void *_rqstp, __be32 *p, void *_resp)
 {
+	struct svc_rqst *rqstp = _rqstp;
+	struct nfsd3_readres *resp = _resp;
+
 	p = encode_post_op_attr(rqstp, p, &resp->fh);
 	if (resp->status == 0) {
 		*p++ = htonl(resp->count);
@@ -715,9 +743,10 @@ nfs3svc_encode_readres(struct svc_rqst *rqstp, __be32 *p,
 
 /* WRITE */
 int
-nfs3svc_encode_writeres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_writeres *resp)
+nfs3svc_encode_writeres(void *_rqstp, __be32 *p, void *_resp)
 {
+	struct svc_rqst *rqstp = _rqstp;
+	struct nfsd3_writeres *resp = _resp;
 	struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
 
 	p = encode_wcc_data(rqstp, p, &resp->fh);
@@ -732,9 +761,10 @@ nfs3svc_encode_writeres(struct svc_rqst *rqstp, __be32 *p,
 
 /* CREATE, MKDIR, SYMLINK, MKNOD */
 int
-nfs3svc_encode_createres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_diropres *resp)
+nfs3svc_encode_createres(void *rqstp, __be32 *p, void *_resp)
 {
+	struct nfsd3_diropres *resp = _resp;
+
 	if (resp->status == 0) {
 		*p++ = xdr_one;
 		p = encode_fh(p, &resp->fh);
@@ -746,9 +776,10 @@ nfs3svc_encode_createres(struct svc_rqst *rqstp, __be32 *p,
 
 /* RENAME */
 int
-nfs3svc_encode_renameres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_renameres *resp)
+nfs3svc_encode_renameres(void *rqstp, __be32 *p, void *_resp)
 {
+	struct nfsd3_renameres *resp = _resp;
+
 	p = encode_wcc_data(rqstp, p, &resp->ffh);
 	p = encode_wcc_data(rqstp, p, &resp->tfh);
 	return xdr_ressize_check(rqstp, p);
@@ -756,9 +787,10 @@ nfs3svc_encode_renameres(struct svc_rqst *rqstp, __be32 *p,
 
 /* LINK */
 int
-nfs3svc_encode_linkres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_linkres *resp)
+nfs3svc_encode_linkres(void *rqstp, __be32 *p, void *_resp)
 {
+	struct nfsd3_linkres *resp = _resp;
+
 	p = encode_post_op_attr(rqstp, p, &resp->fh);
 	p = encode_wcc_data(rqstp, p, &resp->tfh);
 	return xdr_ressize_check(rqstp, p);
@@ -766,9 +798,11 @@ nfs3svc_encode_linkres(struct svc_rqst *rqstp, __be32 *p,
 
 /* READDIR */
 int
-nfs3svc_encode_readdirres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_readdirres *resp)
+nfs3svc_encode_readdirres(void *_rqstp, __be32 *p, void *_resp)
 {
+	struct svc_rqst *rqstp = _rqstp;
+	struct nfsd3_readdirres *resp = _resp;
+
 	p = encode_post_op_attr(rqstp, p, &resp->fh);
 
 	if (resp->status == 0) {
@@ -1016,9 +1050,9 @@ nfs3svc_encode_entry_plus(void *cd, const char *name,
 
 /* FSSTAT */
 int
-nfs3svc_encode_fsstatres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_fsstatres *resp)
+nfs3svc_encode_fsstatres(void *rqstp, __be32 *p, void *_resp)
 {
+	struct nfsd3_fsstatres *resp = _resp;
 	struct kstatfs	*s = &resp->stats;
 	u64		bs = s->f_bsize;
 
@@ -1038,9 +1072,10 @@ nfs3svc_encode_fsstatres(struct svc_rqst *rqstp, __be32 *p,
 
 /* FSINFO */
 int
-nfs3svc_encode_fsinfores(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_fsinfores *resp)
+nfs3svc_encode_fsinfores(void *rqstp, __be32 *p, void *_resp)
 {
+	struct nfsd3_fsinfores *resp = _resp;
+
 	*p++ = xdr_zero;	/* no post_op_attr */
 
 	if (resp->status == 0) {
@@ -1062,9 +1097,10 @@ nfs3svc_encode_fsinfores(struct svc_rqst *rqstp, __be32 *p,
 
 /* PATHCONF */
 int
-nfs3svc_encode_pathconfres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_pathconfres *resp)
+nfs3svc_encode_pathconfres(void *rqstp, __be32 *p, void *_resp)
 {
+	struct nfsd3_pathconfres *resp = _resp;
+
 	*p++ = xdr_zero;	/* no post_op_attr */
 
 	if (resp->status == 0) {
@@ -1081,9 +1117,10 @@ nfs3svc_encode_pathconfres(struct svc_rqst *rqstp, __be32 *p,
 
 /* COMMIT */
 int
-nfs3svc_encode_commitres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_commitres *resp)
+nfs3svc_encode_commitres(void *_rqstp, __be32 *p, void *_resp)
 {
+	struct svc_rqst *rqstp = _rqstp;
+	struct nfsd3_commitres *resp = _resp;
 	struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
 
 	p = encode_wcc_data(rqstp, p, &resp->fh);
@@ -1099,17 +1136,19 @@ nfs3svc_encode_commitres(struct svc_rqst *rqstp, __be32 *p,
  * XDR release functions
  */
 int
-nfs3svc_release_fhandle(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_attrstat *resp)
+nfs3svc_release_fhandle(void *rqstp, __be32 *p, void *_resp)
 {
+	struct nfsd3_attrstat *resp = _resp;
+
 	fh_put(&resp->fh);
 	return 1;
 }
 
 int
-nfs3svc_release_fhandle2(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_fhandle_pair *resp)
+nfs3svc_release_fhandle2(void *rqstp, __be32 *p, void *_resp)
 {
+	struct nfsd3_fhandle_pair *resp = _resp;
+
 	fh_put(&resp->fh1);
 	fh_put(&resp->fh2);
 	return 1;
diff --git a/fs/nfsd/nfs4acl.c b/fs/nfsd/nfs4acl.c
index 6adabd6..71292a0 100644
--- a/fs/nfsd/nfs4acl.c
+++ b/fs/nfsd/nfs4acl.c
@@ -770,9 +770,6 @@ nfsd4_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp,
 	dentry = fhp->fh_dentry;
 	inode = d_inode(dentry);
 
-	if (!inode->i_op->set_acl || !IS_POSIXACL(inode))
-		return nfserr_attrnotsupp;
-
 	if (S_ISDIR(inode->i_mode))
 		flags = NFS4_ACL_DIR;
 
@@ -782,16 +779,19 @@ nfsd4_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp,
 	if (host_error < 0)
 		goto out_nfserr;
 
-	host_error = inode->i_op->set_acl(inode, pacl, ACL_TYPE_ACCESS);
+	fh_lock(fhp);
+
+	host_error = set_posix_acl(inode, ACL_TYPE_ACCESS, pacl);
 	if (host_error < 0)
-		goto out_release;
+		goto out_drop_lock;
 
 	if (S_ISDIR(inode->i_mode)) {
-		host_error = inode->i_op->set_acl(inode, dpacl,
-						  ACL_TYPE_DEFAULT);
+		host_error = set_posix_acl(inode, ACL_TYPE_DEFAULT, dpacl);
 	}
 
-out_release:
+out_drop_lock:
+	fh_unlock(fhp);
+
 	posix_acl_release(pacl);
 	posix_acl_release(dpacl);
 out_nfserr:
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index 7389cb1..e031e30d 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -470,8 +470,7 @@ static int decode_cb_sequence4res(struct xdr_stream *xdr,
 /*
  * NB: Without this zero space reservation, callbacks over krb5p fail
  */
-static void nfs4_xdr_enc_cb_null(struct rpc_rqst *req, struct xdr_stream *xdr,
-				 void *__unused)
+static void nfs4_xdr_enc_cb_null(void *req, struct xdr_stream *xdr, void *__unused)
 {
 	xdr_reserve_space(xdr, 0);
 }
@@ -479,9 +478,9 @@ static void nfs4_xdr_enc_cb_null(struct rpc_rqst *req, struct xdr_stream *xdr,
 /*
  * 20.2. Operation 4: CB_RECALL - Recall a Delegation
  */
-static void nfs4_xdr_enc_cb_recall(struct rpc_rqst *req, struct xdr_stream *xdr,
-				   const struct nfsd4_callback *cb)
+static void nfs4_xdr_enc_cb_recall(void *req, struct xdr_stream *xdr, void *_cb)
 {
+	const struct nfsd4_callback *cb = _cb;
 	const struct nfs4_delegation *dp = cb_to_delegation(cb);
 	struct nfs4_cb_compound_hdr hdr = {
 		.ident = cb->cb_clp->cl_cb_ident,
@@ -504,8 +503,7 @@ static void nfs4_xdr_enc_cb_recall(struct rpc_rqst *req, struct xdr_stream *xdr,
  * Protocol".
  */
 
-static int nfs4_xdr_dec_cb_null(struct rpc_rqst *req, struct xdr_stream *xdr,
-				void *__unused)
+static int nfs4_xdr_dec_cb_null(void *req, struct xdr_stream *xdr, void *__unused)
 {
 	return 0;
 }
@@ -513,10 +511,11 @@ static int nfs4_xdr_dec_cb_null(struct rpc_rqst *req, struct xdr_stream *xdr,
 /*
  * 20.2. Operation 4: CB_RECALL - Recall a Delegation
  */
-static int nfs4_xdr_dec_cb_recall(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_cb_recall(void *rqstp,
 				  struct xdr_stream *xdr,
-				  struct nfsd4_callback *cb)
+				  void *_cb)
 {
+	struct nfsd4_callback *cb = _cb;
 	struct nfs4_cb_compound_hdr hdr;
 	int status;
 
@@ -586,10 +585,12 @@ static void encode_cb_layout4args(struct xdr_stream *xdr,
 	hdr->nops++;
 }
 
-static void nfs4_xdr_enc_cb_layout(struct rpc_rqst *req,
+static void nfs4_xdr_enc_cb_layout(void *_req,
 				   struct xdr_stream *xdr,
-				   const struct nfsd4_callback *cb)
+				   void *_cb)
 {
+	struct rpc_rqst *req = _req;
+	const struct nfsd4_callback *cb = _cb;
 	const struct nfs4_layout_stateid *ls =
 		container_of(cb, struct nfs4_layout_stateid, ls_recall);
 	struct nfs4_cb_compound_hdr hdr = {
@@ -603,10 +604,12 @@ static void nfs4_xdr_enc_cb_layout(struct rpc_rqst *req,
 	encode_cb_nops(&hdr);
 }
 
-static int nfs4_xdr_dec_cb_layout(struct rpc_rqst *rqstp,
+static int nfs4_xdr_dec_cb_layout(void *_rqstp,
 				  struct xdr_stream *xdr,
-				  struct nfsd4_callback *cb)
+				  void *_cb)
 {
+	struct rpc_rqst *rqstp = _rqstp;
+	struct nfsd4_callback *cb = _cb;
 	struct nfs4_cb_compound_hdr hdr;
 	int status;
 
@@ -629,8 +632,8 @@ static int nfs4_xdr_dec_cb_layout(struct rpc_rqst *rqstp,
 #define PROC(proc, call, argtype, restype)				\
 [NFSPROC4_CLNT_##proc] = {						\
 	.p_proc    = NFSPROC4_CB_##call,				\
-	.p_encode  = (kxdreproc_t)nfs4_xdr_enc_##argtype,		\
-	.p_decode  = (kxdrdproc_t)nfs4_xdr_dec_##restype,		\
+	.p_encode  = nfs4_xdr_enc_##argtype,			\
+	.p_decode  = nfs4_xdr_dec_##restype,			\
 	.p_arglen  = NFS4_enc_##argtype##_sz,				\
 	.p_replen  = NFS4_dec_##restype##_sz,				\
 	.p_statidx = NFSPROC4_CB_##call,				\
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index de1ff1d..bd4c347 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -358,8 +358,9 @@ copy_clientid(clientid_t *clid, struct nfsd4_session *session)
 
 static __be32
 nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	   struct nfsd4_open *open)
+	   void *_open)
 {
+	struct nfsd4_open *open = _open;
 	__be32 status;
 	struct svc_fh *resfh = NULL;
 	struct net *net = SVC_NET(rqstp);
@@ -496,8 +497,10 @@ static __be32 nfsd4_open_omfg(struct svc_rqst *rqstp, struct nfsd4_compound_stat
  */
 static __be32
 nfsd4_getfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	    struct svc_fh **getfh)
+	    void *_getfh)
 {
+	struct svc_fh **getfh = (struct svc_fh **)_getfh;
+
 	if (!cstate->current_fh.fh_dentry)
 		return nfserr_nofilehandle;
 
@@ -507,8 +510,10 @@ nfsd4_getfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 
 static __be32
 nfsd4_putfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	    struct nfsd4_putfh *putfh)
+	    void *_putfh)
 {
+	struct nfsd4_putfh *putfh = _putfh;
+
 	fh_put(&cstate->current_fh);
 	cstate->current_fh.fh_handle.fh_size = putfh->pf_fhlen;
 	memcpy(&cstate->current_fh.fh_handle.fh_base, putfh->pf_fhval,
@@ -562,8 +567,10 @@ nfsd4_savefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
  */
 static __be32
 nfsd4_access(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	     struct nfsd4_access *access)
+	     void *_access)
 {
+	struct nfsd4_access *access = _access;
+
 	if (access->ac_req_access & ~NFS3_ACCESS_FULL)
 		return nfserr_inval;
 
@@ -588,8 +595,10 @@ static void gen_boot_verifier(nfs4_verifier *verifier, struct net *net)
 
 static __be32
 nfsd4_commit(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	     struct nfsd4_commit *commit)
+	     void *_commit)
 {
+	struct nfsd4_commit *commit = _commit;
+
 	gen_boot_verifier(&commit->co_verf, SVC_NET(rqstp));
 	return nfsd_commit(rqstp, &cstate->current_fh, commit->co_offset,
 			     commit->co_count);
@@ -597,8 +606,9 @@ nfsd4_commit(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 
 static __be32
 nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	     struct nfsd4_create *create)
+	     void *_create)
 {
+	struct nfsd4_create *create = _create;
 	struct svc_fh resfh;
 	__be32 status;
 	dev_t rdev;
@@ -685,8 +695,9 @@ out:
 
 static __be32
 nfsd4_getattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	      struct nfsd4_getattr *getattr)
+	      void *_getattr)
 {
+	struct nfsd4_getattr *getattr = _getattr;
 	__be32 status;
 
 	status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP);
@@ -706,8 +717,9 @@ nfsd4_getattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 
 static __be32
 nfsd4_link(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	   struct nfsd4_link *link)
+	   void *_link)
 {
+	struct nfsd4_link *link = _link;
 	__be32 status = nfserr_nofilehandle;
 
 	if (!cstate->save_fh.fh_dentry)
@@ -745,8 +757,9 @@ nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 
 static __be32
 nfsd4_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	     struct nfsd4_lookup *lookup)
+	     void *_lookup)
 {
+	struct nfsd4_lookup *lookup = _lookup;
 	return nfsd_lookup(rqstp, &cstate->current_fh,
 			   lookup->lo_name, lookup->lo_len,
 			   &cstate->current_fh);
@@ -754,8 +767,9 @@ nfsd4_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 
 static __be32
 nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	   struct nfsd4_read *read)
+	   void *_read)
 {
+	struct nfsd4_read *read = _read;
 	__be32 status;
 
 	read->rd_filp = NULL;
@@ -790,8 +804,9 @@ out:
 
 static __be32
 nfsd4_readdir(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	      struct nfsd4_readdir *readdir)
+	      void *_readdir)
 {
+	struct nfsd4_readdir *readdir = _readdir;
 	u64 cookie = readdir->rd_cookie;
 	static const nfs4_verifier zeroverf;
 
@@ -815,8 +830,10 @@ nfsd4_readdir(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 
 static __be32
 nfsd4_readlink(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	       struct nfsd4_readlink *readlink)
+	       void *_readlink)
 {
+	struct nfsd4_readlink *readlink = _readlink;
+
 	readlink->rl_rqstp = rqstp;
 	readlink->rl_fhp = &cstate->current_fh;
 	return nfs_ok;
@@ -824,8 +841,9 @@ nfsd4_readlink(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 
 static __be32
 nfsd4_remove(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	     struct nfsd4_remove *remove)
+	     void *_remove)
 {
+	struct nfsd4_remove *remove = _remove;
 	__be32 status;
 
 	if (opens_in_grace(SVC_NET(rqstp)))
@@ -841,8 +859,9 @@ nfsd4_remove(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 
 static __be32
 nfsd4_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	     struct nfsd4_rename *rename)
+	     void *_rename)
 {
+	struct nfsd4_rename *rename = _rename;
 	__be32 status = nfserr_nofilehandle;
 
 	if (!cstate->save_fh.fh_dentry)
@@ -862,8 +881,9 @@ nfsd4_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 
 static __be32
 nfsd4_secinfo(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	      struct nfsd4_secinfo *secinfo)
+	      void *_secinfo)
 {
+	struct nfsd4_secinfo *secinfo = _secinfo;
 	struct svc_export *exp;
 	struct dentry *dentry;
 	__be32 err;
@@ -891,8 +911,9 @@ nfsd4_secinfo(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 
 static __be32
 nfsd4_secinfo_no_name(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	      struct nfsd4_secinfo_no_name *sin)
+	      void *_sin)
 {
+	struct nfsd4_secinfo_no_name *sin = _sin;
 	__be32 err;
 
 	switch (sin->sin_style) {
@@ -914,8 +935,9 @@ nfsd4_secinfo_no_name(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstat
 
 static __be32
 nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	      struct nfsd4_setattr *setattr)
+	      void *_setattr)
 {
+	struct nfsd4_setattr *setattr = _setattr;
 	__be32 status = nfs_ok;
 	int err;
 
@@ -975,8 +997,9 @@ static int fill_in_write_vector(struct kvec *vec, struct nfsd4_write *write)
 
 static __be32
 nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	    struct nfsd4_write *write)
+	    void *_write)
 {
+	struct nfsd4_write *write = _write;
 	stateid_t *stateid = &write->wr_stateid;
 	struct file *filp = NULL;
 	__be32 status = nfs_ok;
@@ -1012,8 +1035,9 @@ nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 
 static __be32
 nfsd4_clone(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-		struct nfsd4_clone *clone)
+		void *_clone)
 {
+	struct nfsd4_clone *clone = _clone;
 	struct file *src, *dst;
 	__be32 status;
 
@@ -1076,23 +1100,28 @@ nfsd4_fallocate(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 
 static __be32
 nfsd4_allocate(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	       struct nfsd4_fallocate *fallocate)
+	       void *_fallocate)
 {
+	struct nfsd4_fallocate *fallocate = _fallocate;
+
 	return nfsd4_fallocate(rqstp, cstate, fallocate, 0);
 }
 
 static __be32
 nfsd4_deallocate(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-		 struct nfsd4_fallocate *fallocate)
+		 void *_fallocate)
 {
+	struct nfsd4_fallocate *fallocate = _fallocate;
+
 	return nfsd4_fallocate(rqstp, cstate, fallocate,
 			       FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE);
 }
 
 static __be32
 nfsd4_seek(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-		struct nfsd4_seek *seek)
+		void *_seek)
 {
+	struct nfsd4_seek *seek = (struct nfsd4_seek *)_seek;
 	int whence;
 	__be32 status;
 	struct file *file;
@@ -1139,8 +1168,9 @@ out:
  */
 static __be32
 _nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	     struct nfsd4_verify *verify)
+	     void *_verify)
 {
+	struct nfsd4_verify *verify = _verify;
 	__be32 *buf, *p;
 	int count;
 	__be32 status;
@@ -1197,8 +1227,9 @@ out_kfree:
 
 static __be32
 nfsd4_nverify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	      struct nfsd4_verify *verify)
+	      void *_verify)
 {
+	struct nfsd4_verify *verify = _verify;
 	__be32 status;
 
 	status = _nfsd4_verify(rqstp, cstate, verify);
@@ -1207,8 +1238,9 @@ nfsd4_nverify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 
 static __be32
 nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	     struct nfsd4_verify *verify)
+	     void *_verify)
 {
+	struct nfsd4_verify *verify = _verify;
 	__be32 status;
 
 	status = _nfsd4_verify(rqstp, cstate, verify);
@@ -1236,8 +1268,9 @@ nfsd4_layout_verify(struct svc_export *exp, unsigned int layout_type)
 static __be32
 nfsd4_getdeviceinfo(struct svc_rqst *rqstp,
 		struct nfsd4_compound_state *cstate,
-		struct nfsd4_getdeviceinfo *gdp)
+		void *_gdp)
 {
+	struct nfsd4_getdeviceinfo *gdp = _gdp;
 	const struct nfsd4_layout_ops *ops;
 	struct nfsd4_deviceid_map *map;
 	struct svc_export *exp;
@@ -1282,8 +1315,9 @@ out:
 static __be32
 nfsd4_layoutget(struct svc_rqst *rqstp,
 		struct nfsd4_compound_state *cstate,
-		struct nfsd4_layoutget *lgp)
+		void *_lgp)
 {
+	struct nfsd4_layoutget *lgp = _lgp;
 	struct svc_fh *current_fh = &cstate->current_fh;
 	const struct nfsd4_layout_ops *ops;
 	struct nfs4_layout_stateid *ls;
@@ -1362,8 +1396,9 @@ out:
 static __be32
 nfsd4_layoutcommit(struct svc_rqst *rqstp,
 		struct nfsd4_compound_state *cstate,
-		struct nfsd4_layoutcommit *lcp)
+		void *_lcp)
 {
+	struct nfsd4_layoutcommit *lcp = _lcp;
 	const struct nfsd4_layout_seg *seg = &lcp->lc_seg;
 	struct svc_fh *current_fh = &cstate->current_fh;
 	const struct nfsd4_layout_ops *ops;
@@ -1426,8 +1461,9 @@ out:
 static __be32
 nfsd4_layoutreturn(struct svc_rqst *rqstp,
 		struct nfsd4_compound_state *cstate,
-		struct nfsd4_layoutreturn *lrp)
+		void *_lrp)
 {
+	struct nfsd4_layoutreturn *lrp = _lrp;
 	struct svc_fh *current_fh = &cstate->current_fh;
 	__be32 nfserr;
 
@@ -1529,7 +1565,7 @@ struct nfsd4_operation {
 	nfsd4op_rsize op_rsize_bop;
 	stateid_getter op_get_currentstateid;
 	stateid_setter op_set_currentstateid;
-};
+} __do_const;
 
 static struct nfsd4_operation nfsd4_ops[];
 
@@ -1637,10 +1673,10 @@ static void svcxdr_init_encode(struct svc_rqst *rqstp,
  * COMPOUND call.
  */
 static __be32
-nfsd4_proc_compound(struct svc_rqst *rqstp,
-		    struct nfsd4_compoundargs *args,
-		    struct nfsd4_compoundres *resp)
+nfsd4_proc_compound(struct svc_rqst *rqstp, void *_args, void *_resp)
 {
+	struct nfsd4_compoundargs *args = _args;
+	struct nfsd4_compoundres *resp = _resp;
 	struct nfsd4_op	*op;
 	struct nfsd4_operation *opdesc;
 	struct nfsd4_compound_state *cstate = &resp->cstate;
@@ -1999,338 +2035,338 @@ static inline u32 nfsd4_layoutreturn_rsize(struct svc_rqst *rqstp, struct nfsd4_
 
 static struct nfsd4_operation nfsd4_ops[] = {
 	[OP_ACCESS] = {
-		.op_func = (nfsd4op_func)nfsd4_access,
+		.op_func = nfsd4_access,
 		.op_name = "OP_ACCESS",
 	},
 	[OP_CLOSE] = {
-		.op_func = (nfsd4op_func)nfsd4_close,
+		.op_func = nfsd4_close,
 		.op_flags = OP_MODIFIES_SOMETHING,
 		.op_name = "OP_CLOSE",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
-		.op_get_currentstateid = (stateid_getter)nfsd4_get_closestateid,
-		.op_set_currentstateid = (stateid_setter)nfsd4_set_closestateid,
+		.op_rsize_bop = nfsd4_status_stateid_rsize,
+		.op_get_currentstateid = nfsd4_get_closestateid,
+		.op_set_currentstateid = nfsd4_set_closestateid,
 	},
 	[OP_COMMIT] = {
-		.op_func = (nfsd4op_func)nfsd4_commit,
+		.op_func = nfsd4_commit,
 		.op_flags = OP_MODIFIES_SOMETHING,
 		.op_name = "OP_COMMIT",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_commit_rsize,
+		.op_rsize_bop = nfsd4_commit_rsize,
 	},
 	[OP_CREATE] = {
-		.op_func = (nfsd4op_func)nfsd4_create,
+		.op_func = nfsd4_create,
 		.op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME | OP_CLEAR_STATEID,
 		.op_name = "OP_CREATE",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_create_rsize,
+		.op_rsize_bop = nfsd4_create_rsize,
 	},
 	[OP_DELEGRETURN] = {
-		.op_func = (nfsd4op_func)nfsd4_delegreturn,
+		.op_func = nfsd4_delegreturn,
 		.op_flags = OP_MODIFIES_SOMETHING,
 		.op_name = "OP_DELEGRETURN",
 		.op_rsize_bop = nfsd4_only_status_rsize,
-		.op_get_currentstateid = (stateid_getter)nfsd4_get_delegreturnstateid,
+		.op_get_currentstateid = nfsd4_get_delegreturnstateid,
 	},
 	[OP_GETATTR] = {
-		.op_func = (nfsd4op_func)nfsd4_getattr,
+		.op_func = nfsd4_getattr,
 		.op_flags = ALLOWED_ON_ABSENT_FS,
 		.op_rsize_bop = nfsd4_getattr_rsize,
 		.op_name = "OP_GETATTR",
 	},
 	[OP_GETFH] = {
-		.op_func = (nfsd4op_func)nfsd4_getfh,
+		.op_func = nfsd4_getfh,
 		.op_name = "OP_GETFH",
 	},
 	[OP_LINK] = {
-		.op_func = (nfsd4op_func)nfsd4_link,
+		.op_func = nfsd4_link,
 		.op_flags = ALLOWED_ON_ABSENT_FS | OP_MODIFIES_SOMETHING
 				| OP_CACHEME,
 		.op_name = "OP_LINK",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_link_rsize,
+		.op_rsize_bop = nfsd4_link_rsize,
 	},
 	[OP_LOCK] = {
-		.op_func = (nfsd4op_func)nfsd4_lock,
+		.op_func = nfsd4_lock,
 		.op_flags = OP_MODIFIES_SOMETHING,
 		.op_name = "OP_LOCK",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_lock_rsize,
-		.op_set_currentstateid = (stateid_setter)nfsd4_set_lockstateid,
+		.op_rsize_bop = nfsd4_lock_rsize,
+		.op_set_currentstateid = nfsd4_set_lockstateid,
 	},
 	[OP_LOCKT] = {
-		.op_func = (nfsd4op_func)nfsd4_lockt,
+		.op_func = nfsd4_lockt,
 		.op_name = "OP_LOCKT",
 	},
 	[OP_LOCKU] = {
-		.op_func = (nfsd4op_func)nfsd4_locku,
+		.op_func = nfsd4_locku,
 		.op_flags = OP_MODIFIES_SOMETHING,
 		.op_name = "OP_LOCKU",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
-		.op_get_currentstateid = (stateid_getter)nfsd4_get_lockustateid,
+		.op_rsize_bop = nfsd4_status_stateid_rsize,
+		.op_get_currentstateid = nfsd4_get_lockustateid,
 	},
 	[OP_LOOKUP] = {
-		.op_func = (nfsd4op_func)nfsd4_lookup,
+		.op_func = nfsd4_lookup,
 		.op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID,
 		.op_name = "OP_LOOKUP",
 	},
 	[OP_LOOKUPP] = {
-		.op_func = (nfsd4op_func)nfsd4_lookupp,
+		.op_func = nfsd4_lookupp,
 		.op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID,
 		.op_name = "OP_LOOKUPP",
 	},
 	[OP_NVERIFY] = {
-		.op_func = (nfsd4op_func)nfsd4_nverify,
+		.op_func = nfsd4_nverify,
 		.op_name = "OP_NVERIFY",
 	},
 	[OP_OPEN] = {
-		.op_func = (nfsd4op_func)nfsd4_open,
+		.op_func = nfsd4_open,
 		.op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING,
 		.op_name = "OP_OPEN",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_open_rsize,
-		.op_set_currentstateid = (stateid_setter)nfsd4_set_openstateid,
+		.op_rsize_bop = nfsd4_open_rsize,
+		.op_set_currentstateid = nfsd4_set_openstateid,
 	},
 	[OP_OPEN_CONFIRM] = {
-		.op_func = (nfsd4op_func)nfsd4_open_confirm,
+		.op_func = nfsd4_open_confirm,
 		.op_flags = OP_MODIFIES_SOMETHING,
 		.op_name = "OP_OPEN_CONFIRM",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
+		.op_rsize_bop = nfsd4_status_stateid_rsize,
 	},
 	[OP_OPEN_DOWNGRADE] = {
-		.op_func = (nfsd4op_func)nfsd4_open_downgrade,
+		.op_func = nfsd4_open_downgrade,
 		.op_flags = OP_MODIFIES_SOMETHING,
 		.op_name = "OP_OPEN_DOWNGRADE",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
-		.op_get_currentstateid = (stateid_getter)nfsd4_get_opendowngradestateid,
-		.op_set_currentstateid = (stateid_setter)nfsd4_set_opendowngradestateid,
+		.op_rsize_bop = nfsd4_status_stateid_rsize,
+		.op_get_currentstateid = nfsd4_get_opendowngradestateid,
+		.op_set_currentstateid = nfsd4_set_opendowngradestateid,
 	},
 	[OP_PUTFH] = {
-		.op_func = (nfsd4op_func)nfsd4_putfh,
+		.op_func = nfsd4_putfh,
 		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
 				| OP_IS_PUTFH_LIKE | OP_CLEAR_STATEID,
 		.op_name = "OP_PUTFH",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_PUTPUBFH] = {
-		.op_func = (nfsd4op_func)nfsd4_putrootfh,
+		.op_func = nfsd4_putrootfh,
 		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
 				| OP_IS_PUTFH_LIKE | OP_CLEAR_STATEID,
 		.op_name = "OP_PUTPUBFH",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_PUTROOTFH] = {
-		.op_func = (nfsd4op_func)nfsd4_putrootfh,
+		.op_func = nfsd4_putrootfh,
 		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
 				| OP_IS_PUTFH_LIKE | OP_CLEAR_STATEID,
 		.op_name = "OP_PUTROOTFH",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_READ] = {
-		.op_func = (nfsd4op_func)nfsd4_read,
+		.op_func = nfsd4_read,
 		.op_name = "OP_READ",
 		.op_rsize_bop = (nfsd4op_rsize)nfsd4_read_rsize,
-		.op_get_currentstateid = (stateid_getter)nfsd4_get_readstateid,
+		.op_get_currentstateid = nfsd4_get_readstateid,
 	},
 	[OP_READDIR] = {
-		.op_func = (nfsd4op_func)nfsd4_readdir,
+		.op_func = nfsd4_readdir,
 		.op_name = "OP_READDIR",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_readdir_rsize,
+		.op_rsize_bop = nfsd4_readdir_rsize,
 	},
 	[OP_READLINK] = {
-		.op_func = (nfsd4op_func)nfsd4_readlink,
+		.op_func = nfsd4_readlink,
 		.op_name = "OP_READLINK",
 	},
 	[OP_REMOVE] = {
-		.op_func = (nfsd4op_func)nfsd4_remove,
+		.op_func = nfsd4_remove,
 		.op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
 		.op_name = "OP_REMOVE",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_remove_rsize,
+		.op_rsize_bop = nfsd4_remove_rsize,
 	},
 	[OP_RENAME] = {
-		.op_func = (nfsd4op_func)nfsd4_rename,
+		.op_func = nfsd4_rename,
 		.op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
 		.op_name = "OP_RENAME",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_rename_rsize,
+		.op_rsize_bop = nfsd4_rename_rsize,
 	},
 	[OP_RENEW] = {
-		.op_func = (nfsd4op_func)nfsd4_renew,
+		.op_func = nfsd4_renew,
 		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
 				| OP_MODIFIES_SOMETHING,
 		.op_name = "OP_RENEW",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 
 	},
 	[OP_RESTOREFH] = {
-		.op_func = (nfsd4op_func)nfsd4_restorefh,
+		.op_func = nfsd4_restorefh,
 		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
 				| OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING,
 		.op_name = "OP_RESTOREFH",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_SAVEFH] = {
-		.op_func = (nfsd4op_func)nfsd4_savefh,
+		.op_func = nfsd4_savefh,
 		.op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING,
 		.op_name = "OP_SAVEFH",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_SECINFO] = {
-		.op_func = (nfsd4op_func)nfsd4_secinfo,
+		.op_func = nfsd4_secinfo,
 		.op_flags = OP_HANDLES_WRONGSEC,
 		.op_name = "OP_SECINFO",
 	},
 	[OP_SETATTR] = {
-		.op_func = (nfsd4op_func)nfsd4_setattr,
+		.op_func = nfsd4_setattr,
 		.op_name = "OP_SETATTR",
 		.op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_setattr_rsize,
-		.op_get_currentstateid = (stateid_getter)nfsd4_get_setattrstateid,
+		.op_rsize_bop = nfsd4_setattr_rsize,
+		.op_get_currentstateid = nfsd4_get_setattrstateid,
 	},
 	[OP_SETCLIENTID] = {
-		.op_func = (nfsd4op_func)nfsd4_setclientid,
+		.op_func = nfsd4_setclientid,
 		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
 				| OP_MODIFIES_SOMETHING | OP_CACHEME,
 		.op_name = "OP_SETCLIENTID",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_setclientid_rsize,
+		.op_rsize_bop = nfsd4_setclientid_rsize,
 	},
 	[OP_SETCLIENTID_CONFIRM] = {
-		.op_func = (nfsd4op_func)nfsd4_setclientid_confirm,
+		.op_func = nfsd4_setclientid_confirm,
 		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
 				| OP_MODIFIES_SOMETHING | OP_CACHEME,
 		.op_name = "OP_SETCLIENTID_CONFIRM",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_VERIFY] = {
-		.op_func = (nfsd4op_func)nfsd4_verify,
+		.op_func = nfsd4_verify,
 		.op_name = "OP_VERIFY",
 	},
 	[OP_WRITE] = {
-		.op_func = (nfsd4op_func)nfsd4_write,
+		.op_func = nfsd4_write,
 		.op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
 		.op_name = "OP_WRITE",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_write_rsize,
-		.op_get_currentstateid = (stateid_getter)nfsd4_get_writestateid,
+		.op_rsize_bop = nfsd4_write_rsize,
+		.op_get_currentstateid = nfsd4_get_writestateid,
 	},
 	[OP_RELEASE_LOCKOWNER] = {
-		.op_func = (nfsd4op_func)nfsd4_release_lockowner,
+		.op_func = nfsd4_release_lockowner,
 		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
 				| OP_MODIFIES_SOMETHING,
 		.op_name = "OP_RELEASE_LOCKOWNER",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 
 	/* NFSv4.1 operations */
 	[OP_EXCHANGE_ID] = {
-		.op_func = (nfsd4op_func)nfsd4_exchange_id,
+		.op_func = nfsd4_exchange_id,
 		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
 				| OP_MODIFIES_SOMETHING,
 		.op_name = "OP_EXCHANGE_ID",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_exchange_id_rsize,
+		.op_rsize_bop = nfsd4_exchange_id_rsize,
 	},
 	[OP_BACKCHANNEL_CTL] = {
-		.op_func = (nfsd4op_func)nfsd4_backchannel_ctl,
+		.op_func = nfsd4_backchannel_ctl,
 		.op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING,
 		.op_name = "OP_BACKCHANNEL_CTL",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_BIND_CONN_TO_SESSION] = {
-		.op_func = (nfsd4op_func)nfsd4_bind_conn_to_session,
+		.op_func = nfsd4_bind_conn_to_session,
 		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
 				| OP_MODIFIES_SOMETHING,
 		.op_name = "OP_BIND_CONN_TO_SESSION",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_bind_conn_to_session_rsize,
+		.op_rsize_bop = nfsd4_bind_conn_to_session_rsize,
 	},
 	[OP_CREATE_SESSION] = {
-		.op_func = (nfsd4op_func)nfsd4_create_session,
+		.op_func = nfsd4_create_session,
 		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
 				| OP_MODIFIES_SOMETHING,
 		.op_name = "OP_CREATE_SESSION",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_create_session_rsize,
+		.op_rsize_bop = nfsd4_create_session_rsize,
 	},
 	[OP_DESTROY_SESSION] = {
-		.op_func = (nfsd4op_func)nfsd4_destroy_session,
+		.op_func = nfsd4_destroy_session,
 		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
 				| OP_MODIFIES_SOMETHING,
 		.op_name = "OP_DESTROY_SESSION",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_SEQUENCE] = {
-		.op_func = (nfsd4op_func)nfsd4_sequence,
+		.op_func = nfsd4_sequence,
 		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP,
 		.op_name = "OP_SEQUENCE",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_sequence_rsize,
+		.op_rsize_bop = nfsd4_sequence_rsize,
 	},
 	[OP_DESTROY_CLIENTID] = {
-		.op_func = (nfsd4op_func)nfsd4_destroy_clientid,
+		.op_func = nfsd4_destroy_clientid,
 		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
 				| OP_MODIFIES_SOMETHING,
 		.op_name = "OP_DESTROY_CLIENTID",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_RECLAIM_COMPLETE] = {
-		.op_func = (nfsd4op_func)nfsd4_reclaim_complete,
+		.op_func = nfsd4_reclaim_complete,
 		.op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING,
 		.op_name = "OP_RECLAIM_COMPLETE",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_SECINFO_NO_NAME] = {
-		.op_func = (nfsd4op_func)nfsd4_secinfo_no_name,
+		.op_func = nfsd4_secinfo_no_name,
 		.op_flags = OP_HANDLES_WRONGSEC,
 		.op_name = "OP_SECINFO_NO_NAME",
 	},
 	[OP_TEST_STATEID] = {
-		.op_func = (nfsd4op_func)nfsd4_test_stateid,
+		.op_func = nfsd4_test_stateid,
 		.op_flags = ALLOWED_WITHOUT_FH,
 		.op_name = "OP_TEST_STATEID",
 	},
 	[OP_FREE_STATEID] = {
-		.op_func = (nfsd4op_func)nfsd4_free_stateid,
+		.op_func = nfsd4_free_stateid,
 		.op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING,
 		.op_name = "OP_FREE_STATEID",
-		.op_get_currentstateid = (stateid_getter)nfsd4_get_freestateid,
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_get_currentstateid = nfsd4_get_freestateid,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 #ifdef CONFIG_NFSD_PNFS
 	[OP_GETDEVICEINFO] = {
-		.op_func = (nfsd4op_func)nfsd4_getdeviceinfo,
+		.op_func = nfsd4_getdeviceinfo,
 		.op_flags = ALLOWED_WITHOUT_FH,
 		.op_name = "OP_GETDEVICEINFO",
 	},
 	[OP_LAYOUTGET] = {
-		.op_func = (nfsd4op_func)nfsd4_layoutget,
+		.op_func = nfsd4_layoutget,
 		.op_flags = OP_MODIFIES_SOMETHING,
 		.op_name = "OP_LAYOUTGET",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_layoutget_rsize,
+		.op_rsize_bop = nfsd4_layoutget_rsize,
 	},
 	[OP_LAYOUTCOMMIT] = {
-		.op_func = (nfsd4op_func)nfsd4_layoutcommit,
+		.op_func = nfsd4_layoutcommit,
 		.op_flags = OP_MODIFIES_SOMETHING,
 		.op_name = "OP_LAYOUTCOMMIT",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_layoutcommit_rsize,
+		.op_rsize_bop = nfsd4_layoutcommit_rsize,
 	},
 	[OP_LAYOUTRETURN] = {
-		.op_func = (nfsd4op_func)nfsd4_layoutreturn,
+		.op_func = nfsd4_layoutreturn,
 		.op_flags = OP_MODIFIES_SOMETHING,
 		.op_name = "OP_LAYOUTRETURN",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_layoutreturn_rsize,
+		.op_rsize_bop = nfsd4_layoutreturn_rsize,
 	},
 #endif /* CONFIG_NFSD_PNFS */
 
 	/* NFSv4.2 operations */
 	[OP_ALLOCATE] = {
-		.op_func = (nfsd4op_func)nfsd4_allocate,
+		.op_func = nfsd4_allocate,
 		.op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
 		.op_name = "OP_ALLOCATE",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_DEALLOCATE] = {
-		.op_func = (nfsd4op_func)nfsd4_deallocate,
+		.op_func = nfsd4_deallocate,
 		.op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
 		.op_name = "OP_DEALLOCATE",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_CLONE] = {
-		.op_func = (nfsd4op_func)nfsd4_clone,
+		.op_func = nfsd4_clone,
 		.op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
 		.op_name = "OP_CLONE",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_SEEK] = {
-		.op_func = (nfsd4op_func)nfsd4_seek,
+		.op_func = nfsd4_seek,
 		.op_name = "OP_SEEK",
 	},
 };
@@ -2368,17 +2404,17 @@ struct nfsd4_voidargs { int dummy; };
 
 static struct svc_procedure		nfsd_procedures4[2] = {
 	[NFSPROC4_NULL] = {
-		.pc_func = (svc_procfunc) nfsd4_proc_null,
-		.pc_encode = (kxdrproc_t) nfs4svc_encode_voidres,
+		.pc_func = nfsd4_proc_null,
+		.pc_encode = nfs4svc_encode_voidres,
 		.pc_argsize = sizeof(struct nfsd4_voidargs),
 		.pc_ressize = sizeof(struct nfsd4_voidres),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = 1,
 	},
 	[NFSPROC4_COMPOUND] = {
-		.pc_func = (svc_procfunc) nfsd4_proc_compound,
-		.pc_decode = (kxdrproc_t) nfs4svc_decode_compoundargs,
-		.pc_encode = (kxdrproc_t) nfs4svc_encode_compoundres,
+		.pc_func = nfsd4_proc_compound,
+		.pc_decode = nfs4svc_decode_compoundargs,
+		.pc_encode = nfs4svc_encode_compoundres,
 		.pc_argsize = sizeof(struct nfsd4_compoundargs),
 		.pc_ressize = sizeof(struct nfsd4_compoundres),
 		.pc_release = nfsd4_release_compoundargs,
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 0462eed..7709d1d 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -2362,8 +2362,9 @@ static bool client_has_state(struct nfs4_client *clp)
 __be32
 nfsd4_exchange_id(struct svc_rqst *rqstp,
 		  struct nfsd4_compound_state *cstate,
-		  struct nfsd4_exchange_id *exid)
+		  void *_exid)
 {
+	struct nfsd4_exchange_id *exid = _exid;
 	struct nfs4_client *conf, *new;
 	struct nfs4_client *unconf = NULL;
 	__be32 status;
@@ -2639,8 +2640,9 @@ static __be32 nfsd4_check_cb_sec(struct nfsd4_cb_sec *cbs)
 __be32
 nfsd4_create_session(struct svc_rqst *rqstp,
 		     struct nfsd4_compound_state *cstate,
-		     struct nfsd4_create_session *cr_ses)
+		     void *_cr_ses)
 {
+	struct nfsd4_create_session *cr_ses = _cr_ses;
 	struct sockaddr *sa = svc_addr(rqstp);
 	struct nfs4_client *conf, *unconf;
 	struct nfs4_client *old = NULL;
@@ -2764,8 +2766,9 @@ static __be32 nfsd4_map_bcts_dir(u32 *dir)
 	return nfserr_inval;
 }
 
-__be32 nfsd4_backchannel_ctl(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_backchannel_ctl *bc)
+__be32 nfsd4_backchannel_ctl(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, void *_bc)
 {
+	struct nfsd4_backchannel_ctl *bc = _bc;
 	struct nfsd4_session *session = cstate->session;
 	struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
 	__be32 status;
@@ -2785,8 +2788,9 @@ __be32 nfsd4_backchannel_ctl(struct svc_rqst *rqstp, struct nfsd4_compound_state
 
 __be32 nfsd4_bind_conn_to_session(struct svc_rqst *rqstp,
 		     struct nfsd4_compound_state *cstate,
-		     struct nfsd4_bind_conn_to_session *bcts)
+		     void *_bcts)
 {
+	struct nfsd4_bind_conn_to_session *bcts = _bcts;
 	__be32 status;
 	struct nfsd4_conn *conn;
 	struct nfsd4_session *session;
@@ -2828,8 +2832,9 @@ static bool nfsd4_compound_in_session(struct nfsd4_session *session, struct nfs4
 __be32
 nfsd4_destroy_session(struct svc_rqst *r,
 		      struct nfsd4_compound_state *cstate,
-		      struct nfsd4_destroy_session *sessionid)
+		      void *_sessionid)
 {
+	struct nfsd4_destroy_session *sessionid = _sessionid;
 	struct nfsd4_session *ses;
 	__be32 status;
 	int ref_held_by_me = 0;
@@ -2925,8 +2930,9 @@ static bool nfsd4_request_too_big(struct svc_rqst *rqstp,
 __be32
 nfsd4_sequence(struct svc_rqst *rqstp,
 	       struct nfsd4_compound_state *cstate,
-	       struct nfsd4_sequence *seq)
+	       void *_seq)
 {
+	struct nfsd4_sequence *seq = _seq;
 	struct nfsd4_compoundres *resp = rqstp->rq_resp;
 	struct xdr_stream *xdr = &resp->xdr;
 	struct nfsd4_session *session;
@@ -3060,8 +3066,9 @@ nfsd4_sequence_done(struct nfsd4_compoundres *resp)
 }
 
 __be32
-nfsd4_destroy_clientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_destroy_clientid *dc)
+nfsd4_destroy_clientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, void *_dc)
 {
+	struct nfsd4_destroy_clientid *dc = _dc;
 	struct nfs4_client *conf, *unconf;
 	struct nfs4_client *clp = NULL;
 	__be32 status = 0;
@@ -3101,8 +3108,9 @@ out:
 }
 
 __be32
-nfsd4_reclaim_complete(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_reclaim_complete *rc)
+nfsd4_reclaim_complete(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, void *_rc)
 {
+	struct nfsd4_reclaim_complete *rc = _rc;
 	__be32 status = 0;
 
 	if (rc->rca_one_fs) {
@@ -3139,8 +3147,9 @@ out:
 
 __be32
 nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-		  struct nfsd4_setclientid *setclid)
+		  void *_setclid)
 {
+	struct nfsd4_setclientid *setclid = _setclid;
 	struct xdr_netobj 	clname = setclid->se_name;
 	nfs4_verifier		clverifier = setclid->se_verf;
 	struct nfs4_client	*conf, *new;
@@ -3198,8 +3207,9 @@ out:
 __be32
 nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
 			 struct nfsd4_compound_state *cstate,
-			 struct nfsd4_setclientid_confirm *setclientid_confirm)
+			 void *_setclientid_confirm)
 {
+	struct nfsd4_setclientid_confirm *setclientid_confirm = _setclientid_confirm;
 	struct nfs4_client *conf, *unconf;
 	struct nfs4_client *old = NULL;
 	nfs4_verifier confirm = setclientid_confirm->sc_confirm; 
@@ -4436,8 +4446,9 @@ void nfsd4_cleanup_open_state(struct nfsd4_compound_state *cstate,
 
 __be32
 nfsd4_renew(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	    clientid_t *clid)
+	    void *_clid)
 {
+	clientid_t *clid = _clid;
 	struct nfs4_client *clp;
 	__be32 status;
 	struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
@@ -4893,8 +4904,9 @@ out:
  */
 __be32
 nfsd4_test_stateid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-		   struct nfsd4_test_stateid *test_stateid)
+		   void *_test_stateid)
 {
+	struct nfsd4_test_stateid *test_stateid = _test_stateid;
 	struct nfsd4_test_stateid_id *stateid;
 	struct nfs4_client *cl = cstate->session->se_client;
 
@@ -4907,8 +4919,9 @@ nfsd4_test_stateid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 
 __be32
 nfsd4_free_stateid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-		   struct nfsd4_free_stateid *free_stateid)
+		   void *_free_stateid)
 {
+	struct nfsd4_free_stateid *free_stateid = _free_stateid;
 	stateid_t *stateid = &free_stateid->fr_stateid;
 	struct nfs4_stid *s;
 	struct nfs4_delegation *dp;
@@ -5046,8 +5059,9 @@ static __be32 nfs4_preprocess_confirmed_seqid_op(struct nfsd4_compound_state *cs
 
 __be32
 nfsd4_open_confirm(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-		   struct nfsd4_open_confirm *oc)
+		   void *_oc)
 {
+	struct nfsd4_open_confirm *oc = _oc;
 	__be32 status;
 	struct nfs4_openowner *oo;
 	struct nfs4_ol_stateid *stp;
@@ -5115,8 +5129,9 @@ static inline void nfs4_stateid_downgrade(struct nfs4_ol_stateid *stp, u32 to_ac
 __be32
 nfsd4_open_downgrade(struct svc_rqst *rqstp,
 		     struct nfsd4_compound_state *cstate,
-		     struct nfsd4_open_downgrade *od)
+		     void *_od)
 {
+	struct nfsd4_open_downgrade *od = _od;
 	__be32 status;
 	struct nfs4_ol_stateid *stp;
 	struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
@@ -5184,8 +5199,9 @@ static void nfsd4_close_open_stateid(struct nfs4_ol_stateid *s)
  */
 __be32
 nfsd4_close(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	    struct nfsd4_close *close)
+	    void *_close)
 {
+	struct nfsd4_close *close = _close;
 	__be32 status;
 	struct nfs4_ol_stateid *stp;
 	struct net *net = SVC_NET(rqstp);
@@ -5214,8 +5230,9 @@ out:
 
 __be32
 nfsd4_delegreturn(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-		  struct nfsd4_delegreturn *dr)
+		  void *_dr)
 {
+	struct nfsd4_delegreturn *dr = _dr;
 	struct nfs4_delegation *dp;
 	stateid_t *stateid = &dr->dr_stateid;
 	struct nfs4_stid *s;
@@ -5549,8 +5566,9 @@ out:
  */
 __be32
 nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	   struct nfsd4_lock *lock)
+	   void *_lock)
 {
+	struct nfsd4_lock *lock = _lock;
 	struct nfs4_openowner *open_sop = NULL;
 	struct nfs4_lockowner *lock_sop = NULL;
 	struct nfs4_ol_stateid *lock_stp = NULL;
@@ -5753,8 +5771,9 @@ static __be32 nfsd_test_lock(struct svc_rqst *rqstp, struct svc_fh *fhp, struct
  */
 __be32
 nfsd4_lockt(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	    struct nfsd4_lockt *lockt)
+	    void *_lockt)
 {
+	struct nfsd4_lockt *lockt = _lockt;
 	struct file_lock *file_lock = NULL;
 	struct nfs4_lockowner *lo = NULL;
 	__be32 status;
@@ -5826,8 +5845,9 @@ out:
 
 __be32
 nfsd4_locku(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	    struct nfsd4_locku *locku)
+	    void *_locku)
 {
+	struct nfsd4_locku *locku = _locku;
 	struct nfs4_ol_stateid *stp;
 	struct file *filp = NULL;
 	struct file_lock *file_lock = NULL;
@@ -5933,8 +5953,9 @@ check_for_locks(struct nfs4_file *fp, struct nfs4_lockowner *lowner)
 __be32
 nfsd4_release_lockowner(struct svc_rqst *rqstp,
 			struct nfsd4_compound_state *cstate,
-			struct nfsd4_release_lockowner *rlockowner)
+			void *_rlockowner)
 {
+	struct nfsd4_release_lockowner *rlockowner = _rlockowner;
 	clientid_t *clid = &rlockowner->rl_clientid;
 	struct nfs4_stateowner *sop;
 	struct nfs4_lockowner *lo = NULL;
@@ -6878,26 +6899,34 @@ clear_current_stateid(struct nfsd4_compound_state *cstate)
  * functions to set current state id
  */
 void
-nfsd4_set_opendowngradestateid(struct nfsd4_compound_state *cstate, struct nfsd4_open_downgrade *odp)
+nfsd4_set_opendowngradestateid(struct nfsd4_compound_state *cstate, void *_odp)
 {
+	struct nfsd4_open_downgrade *odp = _odp;
+
 	put_stateid(cstate, &odp->od_stateid);
 }
 
 void
-nfsd4_set_openstateid(struct nfsd4_compound_state *cstate, struct nfsd4_open *open)
+nfsd4_set_openstateid(struct nfsd4_compound_state *cstate, void *_open)
 {
+	struct nfsd4_open *open = _open;
+
 	put_stateid(cstate, &open->op_stateid);
 }
 
 void
-nfsd4_set_closestateid(struct nfsd4_compound_state *cstate, struct nfsd4_close *close)
+nfsd4_set_closestateid(struct nfsd4_compound_state *cstate, void *_close)
 {
+	struct nfsd4_close *close = _close;
+
 	put_stateid(cstate, &close->cl_stateid);
 }
 
 void
-nfsd4_set_lockstateid(struct nfsd4_compound_state *cstate, struct nfsd4_lock *lock)
+nfsd4_set_lockstateid(struct nfsd4_compound_state *cstate, void *_lock)
 {
+	struct nfsd4_lock *lock = _lock;
+
 	put_stateid(cstate, &lock->lk_resp_stateid);
 }
 
@@ -6906,49 +6935,65 @@ nfsd4_set_lockstateid(struct nfsd4_compound_state *cstate, struct nfsd4_lock *lo
  */
 
 void
-nfsd4_get_opendowngradestateid(struct nfsd4_compound_state *cstate, struct nfsd4_open_downgrade *odp)
+nfsd4_get_opendowngradestateid(struct nfsd4_compound_state *cstate, void *_odp)
 {
+	struct nfsd4_open_downgrade *odp = _odp;
+
 	get_stateid(cstate, &odp->od_stateid);
 }
 
 void
-nfsd4_get_delegreturnstateid(struct nfsd4_compound_state *cstate, struct nfsd4_delegreturn *drp)
+nfsd4_get_delegreturnstateid(struct nfsd4_compound_state *cstate, void *_drp)
 {
+	struct nfsd4_delegreturn *drp = _drp;
+
 	get_stateid(cstate, &drp->dr_stateid);
 }
 
 void
-nfsd4_get_freestateid(struct nfsd4_compound_state *cstate, struct nfsd4_free_stateid *fsp)
+nfsd4_get_freestateid(struct nfsd4_compound_state *cstate, void *_fsp)
 {
+	struct nfsd4_free_stateid *fsp = _fsp;
+
 	get_stateid(cstate, &fsp->fr_stateid);
 }
 
 void
-nfsd4_get_setattrstateid(struct nfsd4_compound_state *cstate, struct nfsd4_setattr *setattr)
+nfsd4_get_setattrstateid(struct nfsd4_compound_state *cstate, void *_setattr)
 {
+	struct nfsd4_setattr *setattr = _setattr;
+
 	get_stateid(cstate, &setattr->sa_stateid);
 }
 
 void
-nfsd4_get_closestateid(struct nfsd4_compound_state *cstate, struct nfsd4_close *close)
+nfsd4_get_closestateid(struct nfsd4_compound_state *cstate, void *_close)
 {
+	struct nfsd4_close *close = _close;
+
 	get_stateid(cstate, &close->cl_stateid);
 }
 
 void
-nfsd4_get_lockustateid(struct nfsd4_compound_state *cstate, struct nfsd4_locku *locku)
+nfsd4_get_lockustateid(struct nfsd4_compound_state *cstate, void *_locku)
 {
+	struct nfsd4_locku *locku = _locku;
+
 	get_stateid(cstate, &locku->lu_stateid);
 }
 
 void
-nfsd4_get_readstateid(struct nfsd4_compound_state *cstate, struct nfsd4_read *read)
+nfsd4_get_readstateid(struct nfsd4_compound_state *cstate, void *_read)
 {
+	struct nfsd4_read *read = _read;
+
 	get_stateid(cstate, &read->rd_stateid);
 }
 
 void
-nfsd4_get_writestateid(struct nfsd4_compound_state *cstate, struct nfsd4_write *write)
+nfsd4_get_writestateid(struct nfsd4_compound_state *cstate, void *_write)
 {
+	struct nfsd4_write *write = _write;
+
 	get_stateid(cstate, &write->wr_stateid);
 }
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 9df898b..574f91e 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -447,8 +447,9 @@ nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval,
 }
 
 static __be32
-nfsd4_decode_stateid(struct nfsd4_compoundargs *argp, stateid_t *sid)
+nfsd4_decode_stateid(struct nfsd4_compoundargs *argp, void *_sid)
 {
+	stateid_t *sid = _sid;
 	DECODE_HEAD;
 
 	READ_BUF(sizeof(stateid_t));
@@ -459,8 +460,9 @@ nfsd4_decode_stateid(struct nfsd4_compoundargs *argp, stateid_t *sid)
 }
 
 static __be32
-nfsd4_decode_access(struct nfsd4_compoundargs *argp, struct nfsd4_access *access)
+nfsd4_decode_access(struct nfsd4_compoundargs *argp, void *_access)
 {
+	struct nfsd4_access *access = _access;
 	DECODE_HEAD;
 
 	READ_BUF(4);
@@ -469,8 +471,9 @@ nfsd4_decode_access(struct nfsd4_compoundargs *argp, struct nfsd4_access *access
 	DECODE_TAIL;
 }
 
-static __be32 nfsd4_decode_cb_sec(struct nfsd4_compoundargs *argp, struct nfsd4_cb_sec *cbs)
+static __be32 nfsd4_decode_cb_sec(struct nfsd4_compoundargs *argp, void *_cbs)
 {
+	struct nfsd4_cb_sec *cbs = _cbs;
 	DECODE_HEAD;
 	u32 dummy, uid, gid;
 	char *machine_name;
@@ -549,8 +552,9 @@ static __be32 nfsd4_decode_cb_sec(struct nfsd4_compoundargs *argp, struct nfsd4_
 	DECODE_TAIL;
 }
 
-static __be32 nfsd4_decode_backchannel_ctl(struct nfsd4_compoundargs *argp, struct nfsd4_backchannel_ctl *bc)
+static __be32 nfsd4_decode_backchannel_ctl(struct nfsd4_compoundargs *argp, void *_bc)
 {
+	struct nfsd4_backchannel_ctl *bc = _bc;
 	DECODE_HEAD;
 
 	READ_BUF(4);
@@ -560,8 +564,9 @@ static __be32 nfsd4_decode_backchannel_ctl(struct nfsd4_compoundargs *argp, stru
 	DECODE_TAIL;
 }
 
-static __be32 nfsd4_decode_bind_conn_to_session(struct nfsd4_compoundargs *argp, struct nfsd4_bind_conn_to_session *bcts)
+static __be32 nfsd4_decode_bind_conn_to_session(struct nfsd4_compoundargs *argp, void *_bcts)
 {
+	struct nfsd4_bind_conn_to_session *bcts = _bcts;
 	DECODE_HEAD;
 
 	READ_BUF(NFS4_MAX_SESSIONID_LEN + 8);
@@ -573,8 +578,9 @@ static __be32 nfsd4_decode_bind_conn_to_session(struct nfsd4_compoundargs *argp,
 }
 
 static __be32
-nfsd4_decode_close(struct nfsd4_compoundargs *argp, struct nfsd4_close *close)
+nfsd4_decode_close(struct nfsd4_compoundargs *argp, void *_close)
 {
+	struct nfsd4_close *close = _close;
 	DECODE_HEAD;
 
 	READ_BUF(4);
@@ -586,8 +592,9 @@ nfsd4_decode_close(struct nfsd4_compoundargs *argp, struct nfsd4_close *close)
 
 
 static __be32
-nfsd4_decode_commit(struct nfsd4_compoundargs *argp, struct nfsd4_commit *commit)
+nfsd4_decode_commit(struct nfsd4_compoundargs *argp, void *_commit)
 {
+	struct nfsd4_commit *commit = _commit;
 	DECODE_HEAD;
 
 	READ_BUF(12);
@@ -598,8 +605,9 @@ nfsd4_decode_commit(struct nfsd4_compoundargs *argp, struct nfsd4_commit *commit
 }
 
 static __be32
-nfsd4_decode_create(struct nfsd4_compoundargs *argp, struct nfsd4_create *create)
+nfsd4_decode_create(struct nfsd4_compoundargs *argp, void *_create)
 {
+	struct nfsd4_create *create = _create;
 	DECODE_HEAD;
 
 	READ_BUF(4);
@@ -642,20 +650,25 @@ nfsd4_decode_create(struct nfsd4_compoundargs *argp, struct nfsd4_create *create
 }
 
 static inline __be32
-nfsd4_decode_delegreturn(struct nfsd4_compoundargs *argp, struct nfsd4_delegreturn *dr)
+nfsd4_decode_delegreturn(struct nfsd4_compoundargs *argp, void *_dr)
 {
+	struct nfsd4_delegreturn *dr = _dr;
+
 	return nfsd4_decode_stateid(argp, &dr->dr_stateid);
 }
 
 static inline __be32
-nfsd4_decode_getattr(struct nfsd4_compoundargs *argp, struct nfsd4_getattr *getattr)
+nfsd4_decode_getattr(struct nfsd4_compoundargs *argp, void *_getattr)
 {
+	struct nfsd4_getattr *getattr = _getattr;
+
 	return nfsd4_decode_bitmap(argp, getattr->ga_bmval);
 }
 
 static __be32
-nfsd4_decode_link(struct nfsd4_compoundargs *argp, struct nfsd4_link *link)
+nfsd4_decode_link(struct nfsd4_compoundargs *argp, void *_link)
 {
+	struct nfsd4_link *link = _link;
 	DECODE_HEAD;
 
 	READ_BUF(4);
@@ -669,8 +682,9 @@ nfsd4_decode_link(struct nfsd4_compoundargs *argp, struct nfsd4_link *link)
 }
 
 static __be32
-nfsd4_decode_lock(struct nfsd4_compoundargs *argp, struct nfsd4_lock *lock)
+nfsd4_decode_lock(struct nfsd4_compoundargs *argp, void *_lock)
 {
+	struct nfsd4_lock *lock = _lock;
 	DECODE_HEAD;
 
 	/*
@@ -709,8 +723,9 @@ nfsd4_decode_lock(struct nfsd4_compoundargs *argp, struct nfsd4_lock *lock)
 }
 
 static __be32
-nfsd4_decode_lockt(struct nfsd4_compoundargs *argp, struct nfsd4_lockt *lockt)
+nfsd4_decode_lockt(struct nfsd4_compoundargs *argp, void *_lockt)
 {
+	struct nfsd4_lockt *lockt = _lockt;
 	DECODE_HEAD;
 		        
 	READ_BUF(32);
@@ -728,8 +743,9 @@ nfsd4_decode_lockt(struct nfsd4_compoundargs *argp, struct nfsd4_lockt *lockt)
 }
 
 static __be32
-nfsd4_decode_locku(struct nfsd4_compoundargs *argp, struct nfsd4_locku *locku)
+nfsd4_decode_locku(struct nfsd4_compoundargs *argp, void *_locku)
 {
+	struct nfsd4_locku *locku = _locku;
 	DECODE_HEAD;
 
 	READ_BUF(8);
@@ -748,8 +764,9 @@ nfsd4_decode_locku(struct nfsd4_compoundargs *argp, struct nfsd4_locku *locku)
 }
 
 static __be32
-nfsd4_decode_lookup(struct nfsd4_compoundargs *argp, struct nfsd4_lookup *lookup)
+nfsd4_decode_lookup(struct nfsd4_compoundargs *argp, void *_lookup)
 {
+	struct nfsd4_lookup *lookup = _lookup;
 	DECODE_HEAD;
 
 	READ_BUF(4);
@@ -847,8 +864,9 @@ xdr_error:
 }
 
 static __be32
-nfsd4_decode_open(struct nfsd4_compoundargs *argp, struct nfsd4_open *open)
+nfsd4_decode_open(struct nfsd4_compoundargs *argp, void *_open)
 {
+	struct nfsd4_open *open = _open;
 	DECODE_HEAD;
 	u32 dummy;
 
@@ -960,8 +978,9 @@ nfsd4_decode_open(struct nfsd4_compoundargs *argp, struct nfsd4_open *open)
 }
 
 static __be32
-nfsd4_decode_open_confirm(struct nfsd4_compoundargs *argp, struct nfsd4_open_confirm *open_conf)
+nfsd4_decode_open_confirm(struct nfsd4_compoundargs *argp, void *_open_conf)
 {
+	struct nfsd4_open_confirm *open_conf = _open_conf;
 	DECODE_HEAD;
 
 	if (argp->minorversion >= 1)
@@ -977,8 +996,9 @@ nfsd4_decode_open_confirm(struct nfsd4_compoundargs *argp, struct nfsd4_open_con
 }
 
 static __be32
-nfsd4_decode_open_downgrade(struct nfsd4_compoundargs *argp, struct nfsd4_open_downgrade *open_down)
+nfsd4_decode_open_downgrade(struct nfsd4_compoundargs *argp, void *_open_down)
 {
+	struct nfsd4_open_downgrade *open_down = _open_down;
 	DECODE_HEAD;
 		    
 	status = nfsd4_decode_stateid(argp, &open_down->od_stateid);
@@ -997,8 +1017,9 @@ nfsd4_decode_open_downgrade(struct nfsd4_compoundargs *argp, struct nfsd4_open_d
 }
 
 static __be32
-nfsd4_decode_putfh(struct nfsd4_compoundargs *argp, struct nfsd4_putfh *putfh)
+nfsd4_decode_putfh(struct nfsd4_compoundargs *argp, void *_putfh)
 {
+	struct nfsd4_putfh *putfh = _putfh;
 	DECODE_HEAD;
 
 	READ_BUF(4);
@@ -1020,8 +1041,9 @@ nfsd4_decode_putpubfh(struct nfsd4_compoundargs *argp, void *p)
 }
 
 static __be32
-nfsd4_decode_read(struct nfsd4_compoundargs *argp, struct nfsd4_read *read)
+nfsd4_decode_read(struct nfsd4_compoundargs *argp, void *_read)
 {
+	struct nfsd4_read *read = _read;
 	DECODE_HEAD;
 
 	status = nfsd4_decode_stateid(argp, &read->rd_stateid);
@@ -1035,8 +1057,9 @@ nfsd4_decode_read(struct nfsd4_compoundargs *argp, struct nfsd4_read *read)
 }
 
 static __be32
-nfsd4_decode_readdir(struct nfsd4_compoundargs *argp, struct nfsd4_readdir *readdir)
+nfsd4_decode_readdir(struct nfsd4_compoundargs *argp, void *_readdir)
 {
+	struct nfsd4_readdir *readdir = _readdir;
 	DECODE_HEAD;
 
 	READ_BUF(24);
@@ -1051,8 +1074,9 @@ nfsd4_decode_readdir(struct nfsd4_compoundargs *argp, struct nfsd4_readdir *read
 }
 
 static __be32
-nfsd4_decode_remove(struct nfsd4_compoundargs *argp, struct nfsd4_remove *remove)
+nfsd4_decode_remove(struct nfsd4_compoundargs *argp, void *_remove)
 {
+	struct nfsd4_remove *remove = _remove;
 	DECODE_HEAD;
 
 	READ_BUF(4);
@@ -1066,8 +1090,9 @@ nfsd4_decode_remove(struct nfsd4_compoundargs *argp, struct nfsd4_remove *remove
 }
 
 static __be32
-nfsd4_decode_rename(struct nfsd4_compoundargs *argp, struct nfsd4_rename *rename)
+nfsd4_decode_rename(struct nfsd4_compoundargs *argp, void *_rename)
 {
+	struct nfsd4_rename *rename = _rename;
 	DECODE_HEAD;
 
 	READ_BUF(4);
@@ -1087,7 +1112,7 @@ nfsd4_decode_rename(struct nfsd4_compoundargs *argp, struct nfsd4_rename *rename
 }
 
 static __be32
-nfsd4_decode_renew(struct nfsd4_compoundargs *argp, clientid_t *clientid)
+nfsd4_decode_renew(struct nfsd4_compoundargs *argp, void *clientid)
 {
 	DECODE_HEAD;
 
@@ -1102,8 +1127,9 @@ nfsd4_decode_renew(struct nfsd4_compoundargs *argp, clientid_t *clientid)
 
 static __be32
 nfsd4_decode_secinfo(struct nfsd4_compoundargs *argp,
-		     struct nfsd4_secinfo *secinfo)
+		     void *_secinfo)
 {
+	struct nfsd4_secinfo *secinfo = _secinfo;
 	DECODE_HEAD;
 
 	READ_BUF(4);
@@ -1118,8 +1144,9 @@ nfsd4_decode_secinfo(struct nfsd4_compoundargs *argp,
 
 static __be32
 nfsd4_decode_secinfo_no_name(struct nfsd4_compoundargs *argp,
-		     struct nfsd4_secinfo_no_name *sin)
+		     void *_sin)
 {
+	struct nfsd4_secinfo_no_name *sin = _sin;
 	DECODE_HEAD;
 
 	READ_BUF(4);
@@ -1128,8 +1155,9 @@ nfsd4_decode_secinfo_no_name(struct nfsd4_compoundargs *argp,
 }
 
 static __be32
-nfsd4_decode_setattr(struct nfsd4_compoundargs *argp, struct nfsd4_setattr *setattr)
+nfsd4_decode_setattr(struct nfsd4_compoundargs *argp, void *_setattr)
 {
+	struct nfsd4_setattr *setattr = _setattr;
 	__be32 status;
 
 	status = nfsd4_decode_stateid(argp, &setattr->sa_stateid);
@@ -1140,8 +1168,9 @@ nfsd4_decode_setattr(struct nfsd4_compoundargs *argp, struct nfsd4_setattr *seta
 }
 
 static __be32
-nfsd4_decode_setclientid(struct nfsd4_compoundargs *argp, struct nfsd4_setclientid *setclientid)
+nfsd4_decode_setclientid(struct nfsd4_compoundargs *argp, void *_setclientid)
 {
+	struct nfsd4_setclientid *setclientid = _setclientid;
 	DECODE_HEAD;
 
 	if (argp->minorversion >= 1)
@@ -1170,8 +1199,9 @@ nfsd4_decode_setclientid(struct nfsd4_compoundargs *argp, struct nfsd4_setclient
 }
 
 static __be32
-nfsd4_decode_setclientid_confirm(struct nfsd4_compoundargs *argp, struct nfsd4_setclientid_confirm *scd_c)
+nfsd4_decode_setclientid_confirm(struct nfsd4_compoundargs *argp, void *_scd_c)
 {
+	struct nfsd4_setclientid_confirm *scd_c = _scd_c;
 	DECODE_HEAD;
 
 	if (argp->minorversion >= 1)
@@ -1186,8 +1216,9 @@ nfsd4_decode_setclientid_confirm(struct nfsd4_compoundargs *argp, struct nfsd4_s
 
 /* Also used for NVERIFY */
 static __be32
-nfsd4_decode_verify(struct nfsd4_compoundargs *argp, struct nfsd4_verify *verify)
+nfsd4_decode_verify(struct nfsd4_compoundargs *argp, void *_verify)
 {
+	struct nfsd4_verify *verify = _verify;
 	DECODE_HEAD;
 
 	if ((status = nfsd4_decode_bitmap(argp, verify->ve_bmval)))
@@ -1205,8 +1236,9 @@ nfsd4_decode_verify(struct nfsd4_compoundargs *argp, struct nfsd4_verify *verify
 }
 
 static __be32
-nfsd4_decode_write(struct nfsd4_compoundargs *argp, struct nfsd4_write *write)
+nfsd4_decode_write(struct nfsd4_compoundargs *argp, void *_write)
 {
+	struct nfsd4_write *write = _write;
 	int avail;
 	int len;
 	DECODE_HEAD;
@@ -1256,8 +1288,9 @@ nfsd4_decode_write(struct nfsd4_compoundargs *argp, struct nfsd4_write *write)
 }
 
 static __be32
-nfsd4_decode_release_lockowner(struct nfsd4_compoundargs *argp, struct nfsd4_release_lockowner *rlockowner)
+nfsd4_decode_release_lockowner(struct nfsd4_compoundargs *argp, void *_rlockowner)
 {
+	struct nfsd4_release_lockowner *rlockowner = _rlockowner;
 	DECODE_HEAD;
 
 	if (argp->minorversion >= 1)
@@ -1276,8 +1309,9 @@ nfsd4_decode_release_lockowner(struct nfsd4_compoundargs *argp, struct nfsd4_rel
 
 static __be32
 nfsd4_decode_exchange_id(struct nfsd4_compoundargs *argp,
-			 struct nfsd4_exchange_id *exid)
+			 void *_exid)
 {
+	struct nfsd4_exchange_id *exid = _exid;
 	int dummy, tmp;
 	DECODE_HEAD;
 
@@ -1380,8 +1414,9 @@ nfsd4_decode_exchange_id(struct nfsd4_compoundargs *argp,
 
 static __be32
 nfsd4_decode_create_session(struct nfsd4_compoundargs *argp,
-			    struct nfsd4_create_session *sess)
+			    void *_sess)
 {
+	struct nfsd4_create_session *sess = _sess;
 	DECODE_HEAD;
 	u32 dummy;
 
@@ -1432,8 +1467,9 @@ nfsd4_decode_create_session(struct nfsd4_compoundargs *argp,
 
 static __be32
 nfsd4_decode_destroy_session(struct nfsd4_compoundargs *argp,
-			     struct nfsd4_destroy_session *destroy_session)
+			     void *_destroy_session)
 {
+	struct nfsd4_destroy_session *destroy_session = _destroy_session;
 	DECODE_HEAD;
 	READ_BUF(NFS4_MAX_SESSIONID_LEN);
 	COPYMEM(destroy_session->sessionid.data, NFS4_MAX_SESSIONID_LEN);
@@ -1443,8 +1479,9 @@ nfsd4_decode_destroy_session(struct nfsd4_compoundargs *argp,
 
 static __be32
 nfsd4_decode_free_stateid(struct nfsd4_compoundargs *argp,
-			  struct nfsd4_free_stateid *free_stateid)
+			  void *_free_stateid)
 {
+	struct nfsd4_free_stateid *free_stateid = _free_stateid;
 	DECODE_HEAD;
 
 	READ_BUF(sizeof(stateid_t));
@@ -1456,8 +1493,9 @@ nfsd4_decode_free_stateid(struct nfsd4_compoundargs *argp,
 
 static __be32
 nfsd4_decode_sequence(struct nfsd4_compoundargs *argp,
-		      struct nfsd4_sequence *seq)
+		      void *_seq)
 {
+	struct nfsd4_sequence *seq = _seq;
 	DECODE_HEAD;
 
 	READ_BUF(NFS4_MAX_SESSIONID_LEN + 16);
@@ -1471,8 +1509,9 @@ nfsd4_decode_sequence(struct nfsd4_compoundargs *argp,
 }
 
 static __be32
-nfsd4_decode_test_stateid(struct nfsd4_compoundargs *argp, struct nfsd4_test_stateid *test_stateid)
+nfsd4_decode_test_stateid(struct nfsd4_compoundargs *argp, void *_test_stateid)
 {
+	struct nfsd4_test_stateid *test_stateid = _test_stateid;
 	int i;
 	__be32 *p, status;
 	struct nfsd4_test_stateid_id *stateid;
@@ -1506,8 +1545,9 @@ xdr_error:
 	goto out;
 }
 
-static __be32 nfsd4_decode_destroy_clientid(struct nfsd4_compoundargs *argp, struct nfsd4_destroy_clientid *dc)
+static __be32 nfsd4_decode_destroy_clientid(struct nfsd4_compoundargs *argp, void *_dc)
 {
+	struct nfsd4_destroy_clientid *dc = _dc;
 	DECODE_HEAD;
 
 	READ_BUF(8);
@@ -1516,8 +1556,9 @@ static __be32 nfsd4_decode_destroy_clientid(struct nfsd4_compoundargs *argp, str
 	DECODE_TAIL;
 }
 
-static __be32 nfsd4_decode_reclaim_complete(struct nfsd4_compoundargs *argp, struct nfsd4_reclaim_complete *rc)
+static __be32 nfsd4_decode_reclaim_complete(struct nfsd4_compoundargs *argp, void *_rc)
 {
+	struct nfsd4_reclaim_complete *rc = _rc;
 	DECODE_HEAD;
 
 	READ_BUF(4);
@@ -1529,8 +1570,9 @@ static __be32 nfsd4_decode_reclaim_complete(struct nfsd4_compoundargs *argp, str
 #ifdef CONFIG_NFSD_PNFS
 static __be32
 nfsd4_decode_getdeviceinfo(struct nfsd4_compoundargs *argp,
-		struct nfsd4_getdeviceinfo *gdev)
+		void *_gdev)
 {
+	struct nfsd4_getdeviceinfo *gdev = _gdev;
 	DECODE_HEAD;
 	u32 num, i;
 
@@ -1554,8 +1596,9 @@ nfsd4_decode_getdeviceinfo(struct nfsd4_compoundargs *argp,
 
 static __be32
 nfsd4_decode_layoutget(struct nfsd4_compoundargs *argp,
-		struct nfsd4_layoutget *lgp)
+		void *_lgp)
 {
+	struct nfsd4_layoutget *lgp = _lgp;
 	DECODE_HEAD;
 
 	READ_BUF(36);
@@ -1578,8 +1621,9 @@ nfsd4_decode_layoutget(struct nfsd4_compoundargs *argp,
 
 static __be32
 nfsd4_decode_layoutcommit(struct nfsd4_compoundargs *argp,
-		struct nfsd4_layoutcommit *lcp)
+		void *_lcp)
 {
+	struct nfsd4_layoutcommit *lcp = _lcp;
 	DECODE_HEAD;
 	u32 timechange;
 
@@ -1626,8 +1670,9 @@ nfsd4_decode_layoutcommit(struct nfsd4_compoundargs *argp,
 
 static __be32
 nfsd4_decode_layoutreturn(struct nfsd4_compoundargs *argp,
-		struct nfsd4_layoutreturn *lrp)
+		void *_lrp)
 {
+	struct nfsd4_layoutreturn *lrp = _lrp;
 	DECODE_HEAD;
 
 	READ_BUF(16);
@@ -1661,8 +1706,9 @@ nfsd4_decode_layoutreturn(struct nfsd4_compoundargs *argp,
 
 static __be32
 nfsd4_decode_fallocate(struct nfsd4_compoundargs *argp,
-		       struct nfsd4_fallocate *fallocate)
+		       void *_fallocate)
 {
+	struct nfsd4_fallocate *fallocate = _fallocate;
 	DECODE_HEAD;
 
 	status = nfsd4_decode_stateid(argp, &fallocate->falloc_stateid);
@@ -1677,8 +1723,9 @@ nfsd4_decode_fallocate(struct nfsd4_compoundargs *argp,
 }
 
 static __be32
-nfsd4_decode_clone(struct nfsd4_compoundargs *argp, struct nfsd4_clone *clone)
+nfsd4_decode_clone(struct nfsd4_compoundargs *argp, void *_clone)
 {
+	struct nfsd4_clone *clone = _clone;
 	DECODE_HEAD;
 
 	status = nfsd4_decode_stateid(argp, &clone->cl_src_stateid);
@@ -1696,8 +1743,9 @@ nfsd4_decode_clone(struct nfsd4_compoundargs *argp, struct nfsd4_clone *clone)
 }
 
 static __be32
-nfsd4_decode_seek(struct nfsd4_compoundargs *argp, struct nfsd4_seek *seek)
+nfsd4_decode_seek(struct nfsd4_compoundargs *argp, void *_seek)
 {
+	struct nfsd4_seek *seek = _seek;
 	DECODE_HEAD;
 
 	status = nfsd4_decode_stateid(argp, &seek->seek_stateid);
@@ -1725,88 +1773,88 @@ nfsd4_decode_notsupp(struct nfsd4_compoundargs *argp, void *p)
 
 typedef __be32(*nfsd4_dec)(struct nfsd4_compoundargs *argp, void *);
 
-static nfsd4_dec nfsd4_dec_ops[] = {
-	[OP_ACCESS]		= (nfsd4_dec)nfsd4_decode_access,
-	[OP_CLOSE]		= (nfsd4_dec)nfsd4_decode_close,
-	[OP_COMMIT]		= (nfsd4_dec)nfsd4_decode_commit,
-	[OP_CREATE]		= (nfsd4_dec)nfsd4_decode_create,
-	[OP_DELEGPURGE]		= (nfsd4_dec)nfsd4_decode_notsupp,
-	[OP_DELEGRETURN]	= (nfsd4_dec)nfsd4_decode_delegreturn,
-	[OP_GETATTR]		= (nfsd4_dec)nfsd4_decode_getattr,
-	[OP_GETFH]		= (nfsd4_dec)nfsd4_decode_noop,
-	[OP_LINK]		= (nfsd4_dec)nfsd4_decode_link,
-	[OP_LOCK]		= (nfsd4_dec)nfsd4_decode_lock,
-	[OP_LOCKT]		= (nfsd4_dec)nfsd4_decode_lockt,
-	[OP_LOCKU]		= (nfsd4_dec)nfsd4_decode_locku,
-	[OP_LOOKUP]		= (nfsd4_dec)nfsd4_decode_lookup,
-	[OP_LOOKUPP]		= (nfsd4_dec)nfsd4_decode_noop,
-	[OP_NVERIFY]		= (nfsd4_dec)nfsd4_decode_verify,
-	[OP_OPEN]		= (nfsd4_dec)nfsd4_decode_open,
-	[OP_OPENATTR]		= (nfsd4_dec)nfsd4_decode_notsupp,
-	[OP_OPEN_CONFIRM]	= (nfsd4_dec)nfsd4_decode_open_confirm,
-	[OP_OPEN_DOWNGRADE]	= (nfsd4_dec)nfsd4_decode_open_downgrade,
-	[OP_PUTFH]		= (nfsd4_dec)nfsd4_decode_putfh,
-	[OP_PUTPUBFH]		= (nfsd4_dec)nfsd4_decode_putpubfh,
-	[OP_PUTROOTFH]		= (nfsd4_dec)nfsd4_decode_noop,
-	[OP_READ]		= (nfsd4_dec)nfsd4_decode_read,
-	[OP_READDIR]		= (nfsd4_dec)nfsd4_decode_readdir,
-	[OP_READLINK]		= (nfsd4_dec)nfsd4_decode_noop,
-	[OP_REMOVE]		= (nfsd4_dec)nfsd4_decode_remove,
-	[OP_RENAME]		= (nfsd4_dec)nfsd4_decode_rename,
-	[OP_RENEW]		= (nfsd4_dec)nfsd4_decode_renew,
-	[OP_RESTOREFH]		= (nfsd4_dec)nfsd4_decode_noop,
-	[OP_SAVEFH]		= (nfsd4_dec)nfsd4_decode_noop,
-	[OP_SECINFO]		= (nfsd4_dec)nfsd4_decode_secinfo,
-	[OP_SETATTR]		= (nfsd4_dec)nfsd4_decode_setattr,
-	[OP_SETCLIENTID]	= (nfsd4_dec)nfsd4_decode_setclientid,
-	[OP_SETCLIENTID_CONFIRM] = (nfsd4_dec)nfsd4_decode_setclientid_confirm,
-	[OP_VERIFY]		= (nfsd4_dec)nfsd4_decode_verify,
-	[OP_WRITE]		= (nfsd4_dec)nfsd4_decode_write,
-	[OP_RELEASE_LOCKOWNER]	= (nfsd4_dec)nfsd4_decode_release_lockowner,
+static const nfsd4_dec nfsd4_dec_ops[] = {
+	[OP_ACCESS]		= nfsd4_decode_access,
+	[OP_CLOSE]		= nfsd4_decode_close,
+	[OP_COMMIT]		= nfsd4_decode_commit,
+	[OP_CREATE]		= nfsd4_decode_create,
+	[OP_DELEGPURGE]		= nfsd4_decode_notsupp,
+	[OP_DELEGRETURN]	= nfsd4_decode_delegreturn,
+	[OP_GETATTR]		= nfsd4_decode_getattr,
+	[OP_GETFH]		= nfsd4_decode_noop,
+	[OP_LINK]		= nfsd4_decode_link,
+	[OP_LOCK]		= nfsd4_decode_lock,
+	[OP_LOCKT]		= nfsd4_decode_lockt,
+	[OP_LOCKU]		= nfsd4_decode_locku,
+	[OP_LOOKUP]		= nfsd4_decode_lookup,
+	[OP_LOOKUPP]		= nfsd4_decode_noop,
+	[OP_NVERIFY]		= nfsd4_decode_verify,
+	[OP_OPEN]		= nfsd4_decode_open,
+	[OP_OPENATTR]		= nfsd4_decode_notsupp,
+	[OP_OPEN_CONFIRM]	= nfsd4_decode_open_confirm,
+	[OP_OPEN_DOWNGRADE]	= nfsd4_decode_open_downgrade,
+	[OP_PUTFH]		= nfsd4_decode_putfh,
+	[OP_PUTPUBFH]		= nfsd4_decode_putpubfh,
+	[OP_PUTROOTFH]		= nfsd4_decode_noop,
+	[OP_READ]		= nfsd4_decode_read,
+	[OP_READDIR]		= nfsd4_decode_readdir,
+	[OP_READLINK]		= nfsd4_decode_noop,
+	[OP_REMOVE]		= nfsd4_decode_remove,
+	[OP_RENAME]		= nfsd4_decode_rename,
+	[OP_RENEW]		= nfsd4_decode_renew,
+	[OP_RESTOREFH]		= nfsd4_decode_noop,
+	[OP_SAVEFH]		= nfsd4_decode_noop,
+	[OP_SECINFO]		= nfsd4_decode_secinfo,
+	[OP_SETATTR]		= nfsd4_decode_setattr,
+	[OP_SETCLIENTID]	= nfsd4_decode_setclientid,
+	[OP_SETCLIENTID_CONFIRM] = nfsd4_decode_setclientid_confirm,
+	[OP_VERIFY]		= nfsd4_decode_verify,
+	[OP_WRITE]		= nfsd4_decode_write,
+	[OP_RELEASE_LOCKOWNER]	= nfsd4_decode_release_lockowner,
 
 	/* new operations for NFSv4.1 */
-	[OP_BACKCHANNEL_CTL]	= (nfsd4_dec)nfsd4_decode_backchannel_ctl,
-	[OP_BIND_CONN_TO_SESSION]= (nfsd4_dec)nfsd4_decode_bind_conn_to_session,
-	[OP_EXCHANGE_ID]	= (nfsd4_dec)nfsd4_decode_exchange_id,
-	[OP_CREATE_SESSION]	= (nfsd4_dec)nfsd4_decode_create_session,
-	[OP_DESTROY_SESSION]	= (nfsd4_dec)nfsd4_decode_destroy_session,
-	[OP_FREE_STATEID]	= (nfsd4_dec)nfsd4_decode_free_stateid,
-	[OP_GET_DIR_DELEGATION]	= (nfsd4_dec)nfsd4_decode_notsupp,
+	[OP_BACKCHANNEL_CTL]	= nfsd4_decode_backchannel_ctl,
+	[OP_BIND_CONN_TO_SESSION]= nfsd4_decode_bind_conn_to_session,
+	[OP_EXCHANGE_ID]	= nfsd4_decode_exchange_id,
+	[OP_CREATE_SESSION]	= nfsd4_decode_create_session,
+	[OP_DESTROY_SESSION]	= nfsd4_decode_destroy_session,
+	[OP_FREE_STATEID]	= nfsd4_decode_free_stateid,
+	[OP_GET_DIR_DELEGATION]	= nfsd4_decode_notsupp,
 #ifdef CONFIG_NFSD_PNFS
-	[OP_GETDEVICEINFO]	= (nfsd4_dec)nfsd4_decode_getdeviceinfo,
-	[OP_GETDEVICELIST]	= (nfsd4_dec)nfsd4_decode_notsupp,
-	[OP_LAYOUTCOMMIT]	= (nfsd4_dec)nfsd4_decode_layoutcommit,
-	[OP_LAYOUTGET]		= (nfsd4_dec)nfsd4_decode_layoutget,
-	[OP_LAYOUTRETURN]	= (nfsd4_dec)nfsd4_decode_layoutreturn,
+	[OP_GETDEVICEINFO]	= nfsd4_decode_getdeviceinfo,
+	[OP_GETDEVICELIST]	= nfsd4_decode_notsupp,
+	[OP_LAYOUTCOMMIT]	= nfsd4_decode_layoutcommit,
+	[OP_LAYOUTGET]		= nfsd4_decode_layoutget,
+	[OP_LAYOUTRETURN]	= nfsd4_decode_layoutreturn,
 #else
-	[OP_GETDEVICEINFO]	= (nfsd4_dec)nfsd4_decode_notsupp,
-	[OP_GETDEVICELIST]	= (nfsd4_dec)nfsd4_decode_notsupp,
-	[OP_LAYOUTCOMMIT]	= (nfsd4_dec)nfsd4_decode_notsupp,
-	[OP_LAYOUTGET]		= (nfsd4_dec)nfsd4_decode_notsupp,
-	[OP_LAYOUTRETURN]	= (nfsd4_dec)nfsd4_decode_notsupp,
+	[OP_GETDEVICEINFO]	= nfsd4_decode_notsupp,
+	[OP_GETDEVICELIST]	= nfsd4_decode_notsupp,
+	[OP_LAYOUTCOMMIT]	= nfsd4_decode_notsupp,
+	[OP_LAYOUTGET]		= nfsd4_decode_notsupp,
+	[OP_LAYOUTRETURN]	= nfsd4_decode_notsupp,
 #endif
-	[OP_SECINFO_NO_NAME]	= (nfsd4_dec)nfsd4_decode_secinfo_no_name,
-	[OP_SEQUENCE]		= (nfsd4_dec)nfsd4_decode_sequence,
-	[OP_SET_SSV]		= (nfsd4_dec)nfsd4_decode_notsupp,
-	[OP_TEST_STATEID]	= (nfsd4_dec)nfsd4_decode_test_stateid,
-	[OP_WANT_DELEGATION]	= (nfsd4_dec)nfsd4_decode_notsupp,
-	[OP_DESTROY_CLIENTID]	= (nfsd4_dec)nfsd4_decode_destroy_clientid,
-	[OP_RECLAIM_COMPLETE]	= (nfsd4_dec)nfsd4_decode_reclaim_complete,
+	[OP_SECINFO_NO_NAME]	= nfsd4_decode_secinfo_no_name,
+	[OP_SEQUENCE]		= nfsd4_decode_sequence,
+	[OP_SET_SSV]		= nfsd4_decode_notsupp,
+	[OP_TEST_STATEID]	= nfsd4_decode_test_stateid,
+	[OP_WANT_DELEGATION]	= nfsd4_decode_notsupp,
+	[OP_DESTROY_CLIENTID]	= nfsd4_decode_destroy_clientid,
+	[OP_RECLAIM_COMPLETE]	= nfsd4_decode_reclaim_complete,
 
 	/* new operations for NFSv4.2 */
-	[OP_ALLOCATE]		= (nfsd4_dec)nfsd4_decode_fallocate,
-	[OP_COPY]		= (nfsd4_dec)nfsd4_decode_notsupp,
-	[OP_COPY_NOTIFY]	= (nfsd4_dec)nfsd4_decode_notsupp,
-	[OP_DEALLOCATE]		= (nfsd4_dec)nfsd4_decode_fallocate,
-	[OP_IO_ADVISE]		= (nfsd4_dec)nfsd4_decode_notsupp,
-	[OP_LAYOUTERROR]	= (nfsd4_dec)nfsd4_decode_notsupp,
-	[OP_LAYOUTSTATS]	= (nfsd4_dec)nfsd4_decode_notsupp,
-	[OP_OFFLOAD_CANCEL]	= (nfsd4_dec)nfsd4_decode_notsupp,
-	[OP_OFFLOAD_STATUS]	= (nfsd4_dec)nfsd4_decode_notsupp,
-	[OP_READ_PLUS]		= (nfsd4_dec)nfsd4_decode_notsupp,
-	[OP_SEEK]		= (nfsd4_dec)nfsd4_decode_seek,
-	[OP_WRITE_SAME]		= (nfsd4_dec)nfsd4_decode_notsupp,
-	[OP_CLONE]		= (nfsd4_dec)nfsd4_decode_clone,
+	[OP_ALLOCATE]		= nfsd4_decode_fallocate,
+	[OP_COPY]		= nfsd4_decode_notsupp,
+	[OP_COPY_NOTIFY]	= nfsd4_decode_notsupp,
+	[OP_DEALLOCATE]		= nfsd4_decode_fallocate,
+	[OP_IO_ADVISE]		= nfsd4_decode_notsupp,
+	[OP_LAYOUTERROR]	= nfsd4_decode_notsupp,
+	[OP_LAYOUTSTATS]	= nfsd4_decode_notsupp,
+	[OP_OFFLOAD_CANCEL]	= nfsd4_decode_notsupp,
+	[OP_OFFLOAD_STATUS]	= nfsd4_decode_notsupp,
+	[OP_READ_PLUS]		= nfsd4_decode_notsupp,
+	[OP_SEEK]		= nfsd4_decode_seek,
+	[OP_WRITE_SAME]		= nfsd4_decode_notsupp,
+	[OP_CLONE]		= nfsd4_decode_clone,
 };
 
 static inline bool
@@ -3036,8 +3084,9 @@ nfsd4_encode_stateid(struct xdr_stream *xdr, stateid_t *sid)
 }
 
 static __be32
-nfsd4_encode_access(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_access *access)
+nfsd4_encode_access(struct nfsd4_compoundres *resp, __be32 nfserr, void *_access)
 {
+	struct nfsd4_access *access = _access;
 	struct xdr_stream *xdr = &resp->xdr;
 	__be32 *p;
 
@@ -3051,8 +3100,9 @@ nfsd4_encode_access(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_
 	return nfserr;
 }
 
-static __be32 nfsd4_encode_bind_conn_to_session(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_bind_conn_to_session *bcts)
+static __be32 nfsd4_encode_bind_conn_to_session(struct nfsd4_compoundres *resp, __be32 nfserr, void *_bcts)
 {
+	struct nfsd4_bind_conn_to_session *bcts = _bcts;
 	struct xdr_stream *xdr = &resp->xdr;
 	__be32 *p;
 
@@ -3070,8 +3120,10 @@ static __be32 nfsd4_encode_bind_conn_to_session(struct nfsd4_compoundres *resp,
 }
 
 static __be32
-nfsd4_encode_close(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_close *close)
+nfsd4_encode_close(struct nfsd4_compoundres *resp, __be32 nfserr, void *_close)
 {
+	struct nfsd4_close *close = _close;
+
 	struct xdr_stream *xdr = &resp->xdr;
 
 	if (!nfserr)
@@ -3082,8 +3134,9 @@ nfsd4_encode_close(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_c
 
 
 static __be32
-nfsd4_encode_commit(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_commit *commit)
+nfsd4_encode_commit(struct nfsd4_compoundres *resp, __be32 nfserr, void *_commit)
 {
+	struct nfsd4_commit *commit = _commit;
 	struct xdr_stream *xdr = &resp->xdr;
 	__be32 *p;
 
@@ -3098,8 +3151,9 @@ nfsd4_encode_commit(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_
 }
 
 static __be32
-nfsd4_encode_create(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_create *create)
+nfsd4_encode_create(struct nfsd4_compoundres *resp, __be32 nfserr, void *_create)
 {
+	struct nfsd4_create *create = _create;
 	struct xdr_stream *xdr = &resp->xdr;
 	__be32 *p;
 
@@ -3115,8 +3169,9 @@ nfsd4_encode_create(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_
 }
 
 static __be32
-nfsd4_encode_getattr(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_getattr *getattr)
+nfsd4_encode_getattr(struct nfsd4_compoundres *resp, __be32 nfserr, void *_getattr)
 {
+	struct nfsd4_getattr *getattr = _getattr;
 	struct svc_fh *fhp = getattr->ga_fhp;
 	struct xdr_stream *xdr = &resp->xdr;
 
@@ -3130,8 +3185,9 @@ nfsd4_encode_getattr(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4
 }
 
 static __be32
-nfsd4_encode_getfh(struct nfsd4_compoundres *resp, __be32 nfserr, struct svc_fh **fhpp)
+nfsd4_encode_getfh(struct nfsd4_compoundres *resp, __be32 nfserr, void *_fhpp)
 {
+	struct svc_fh **fhpp = (struct svc_fh **)_fhpp;
 	struct xdr_stream *xdr = &resp->xdr;
 	struct svc_fh *fhp = *fhpp;
 	unsigned int len;
@@ -3187,8 +3243,10 @@ again:
 }
 
 static __be32
-nfsd4_encode_lock(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_lock *lock)
+nfsd4_encode_lock(struct nfsd4_compoundres *resp, __be32 nfserr, void *_lock)
 {
+	struct nfsd4_lock *lock = _lock;
+
 	struct xdr_stream *xdr = &resp->xdr;
 
 	if (!nfserr)
@@ -3200,8 +3258,9 @@ nfsd4_encode_lock(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_lo
 }
 
 static __be32
-nfsd4_encode_lockt(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_lockt *lockt)
+nfsd4_encode_lockt(struct nfsd4_compoundres *resp, __be32 nfserr, void *_lockt)
 {
+	struct nfsd4_lockt *lockt = _lockt;
 	struct xdr_stream *xdr = &resp->xdr;
 
 	if (nfserr == nfserr_denied)
@@ -3210,8 +3269,9 @@ nfsd4_encode_lockt(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_l
 }
 
 static __be32
-nfsd4_encode_locku(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_locku *locku)
+nfsd4_encode_locku(struct nfsd4_compoundres *resp, __be32 nfserr, void *_locku)
 {
+	struct nfsd4_locku *locku = _locku;
 	struct xdr_stream *xdr = &resp->xdr;
 
 	if (!nfserr)
@@ -3222,8 +3282,9 @@ nfsd4_encode_locku(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_l
 
 
 static __be32
-nfsd4_encode_link(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_link *link)
+nfsd4_encode_link(struct nfsd4_compoundres *resp, __be32 nfserr, void *_link)
 {
+	struct nfsd4_link *link = _link;
 	struct xdr_stream *xdr = &resp->xdr;
 	__be32 *p;
 
@@ -3238,8 +3299,9 @@ nfsd4_encode_link(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_li
 
 
 static __be32
-nfsd4_encode_open(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_open *open)
+nfsd4_encode_open(struct nfsd4_compoundres *resp, __be32 nfserr, void *_open)
 {
+	struct nfsd4_open *open = _open;
 	struct xdr_stream *xdr = &resp->xdr;
 	__be32 *p;
 
@@ -3336,8 +3398,10 @@ out:
 }
 
 static __be32
-nfsd4_encode_open_confirm(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_open_confirm *oc)
+nfsd4_encode_open_confirm(struct nfsd4_compoundres *resp, __be32 nfserr, void *_oc)
 {
+	struct nfsd4_open_confirm *oc = _oc;
+
 	struct xdr_stream *xdr = &resp->xdr;
 
 	if (!nfserr)
@@ -3347,8 +3411,10 @@ nfsd4_encode_open_confirm(struct nfsd4_compoundres *resp, __be32 nfserr, struct
 }
 
 static __be32
-nfsd4_encode_open_downgrade(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_open_downgrade *od)
+nfsd4_encode_open_downgrade(struct nfsd4_compoundres *resp, __be32 nfserr, void *_od)
 {
+	struct nfsd4_open_downgrade *od = _od;
+
 	struct xdr_stream *xdr = &resp->xdr;
 
 	if (!nfserr)
@@ -3481,9 +3547,9 @@ static __be32 nfsd4_encode_readv(struct nfsd4_compoundres *resp,
 }
 
 static __be32
-nfsd4_encode_read(struct nfsd4_compoundres *resp, __be32 nfserr,
-		  struct nfsd4_read *read)
+nfsd4_encode_read(struct nfsd4_compoundres *resp, __be32 nfserr, void *_read)
 {
+	struct nfsd4_read *read = _read;
 	unsigned long maxcount;
 	struct xdr_stream *xdr = &resp->xdr;
 	struct file *file = read->rd_filp;
@@ -3535,8 +3601,9 @@ out:
 }
 
 static __be32
-nfsd4_encode_readlink(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_readlink *readlink)
+nfsd4_encode_readlink(struct nfsd4_compoundres *resp, __be32 nfserr, void *_readlink)
 {
+	struct nfsd4_readlink *readlink = _readlink;
 	int maxcount;
 	__be32 wire_count;
 	int zero = 0;
@@ -3580,8 +3647,9 @@ nfsd4_encode_readlink(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd
 }
 
 static __be32
-nfsd4_encode_readdir(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_readdir *readdir)
+nfsd4_encode_readdir(struct nfsd4_compoundres *resp, __be32 nfserr, void *_readdir)
 {
+	struct nfsd4_readdir *readdir = _readdir;
 	int maxcount;
 	int bytes_left;
 	loff_t offset;
@@ -3673,8 +3741,9 @@ err_no_verf:
 }
 
 static __be32
-nfsd4_encode_remove(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_remove *remove)
+nfsd4_encode_remove(struct nfsd4_compoundres *resp, __be32 nfserr, void *_remove)
 {
+	struct nfsd4_remove *remove = _remove;
 	struct xdr_stream *xdr = &resp->xdr;
 	__be32 *p;
 
@@ -3688,8 +3757,9 @@ nfsd4_encode_remove(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_
 }
 
 static __be32
-nfsd4_encode_rename(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_rename *rename)
+nfsd4_encode_rename(struct nfsd4_compoundres *resp, __be32 nfserr, void *_rename)
 {
+	struct nfsd4_rename *rename = _rename;
 	struct xdr_stream *xdr = &resp->xdr;
 	__be32 *p;
 
@@ -3705,8 +3775,9 @@ nfsd4_encode_rename(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_
 
 static __be32
 nfsd4_do_encode_secinfo(struct xdr_stream *xdr,
-			 __be32 nfserr, struct svc_export *exp)
+			 __be32 nfserr, void *_exp)
 {
+	struct svc_export *exp = _exp;
 	u32 i, nflavs, supported;
 	struct exp_flavor_info *flavs;
 	struct exp_flavor_info def_flavs[2];
@@ -3781,8 +3852,9 @@ out:
 
 static __be32
 nfsd4_encode_secinfo(struct nfsd4_compoundres *resp, __be32 nfserr,
-		     struct nfsd4_secinfo *secinfo)
+		     void *_secinfo)
 {
+	struct nfsd4_secinfo *secinfo = _secinfo;
 	struct xdr_stream *xdr = &resp->xdr;
 
 	return nfsd4_do_encode_secinfo(xdr, nfserr, secinfo->si_exp);
@@ -3790,8 +3862,9 @@ nfsd4_encode_secinfo(struct nfsd4_compoundres *resp, __be32 nfserr,
 
 static __be32
 nfsd4_encode_secinfo_no_name(struct nfsd4_compoundres *resp, __be32 nfserr,
-		     struct nfsd4_secinfo_no_name *secinfo)
+		     void *_secinfo)
 {
+	struct nfsd4_secinfo_no_name *secinfo = _secinfo;
 	struct xdr_stream *xdr = &resp->xdr;
 
 	return nfsd4_do_encode_secinfo(xdr, nfserr, secinfo->sin_exp);
@@ -3802,8 +3875,9 @@ nfsd4_encode_secinfo_no_name(struct nfsd4_compoundres *resp, __be32 nfserr,
  * regardless of the error status.
  */
 static __be32
-nfsd4_encode_setattr(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_setattr *setattr)
+nfsd4_encode_setattr(struct nfsd4_compoundres *resp, __be32 nfserr, void *_setattr)
 {
+	struct nfsd4_setattr *setattr = _setattr;
 	struct xdr_stream *xdr = &resp->xdr;
 	__be32 *p;
 
@@ -3826,8 +3900,9 @@ nfsd4_encode_setattr(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4
 }
 
 static __be32
-nfsd4_encode_setclientid(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_setclientid *scd)
+nfsd4_encode_setclientid(struct nfsd4_compoundres *resp, __be32 nfserr, void *_scd)
 {
+	struct nfsd4_setclientid *scd = _scd;
 	struct xdr_stream *xdr = &resp->xdr;
 	__be32 *p;
 
@@ -3850,8 +3925,9 @@ nfsd4_encode_setclientid(struct nfsd4_compoundres *resp, __be32 nfserr, struct n
 }
 
 static __be32
-nfsd4_encode_write(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_write *write)
+nfsd4_encode_write(struct nfsd4_compoundres *resp, __be32 nfserr, void *_write)
 {
+	struct nfsd4_write *write = _write;
 	struct xdr_stream *xdr = &resp->xdr;
 	__be32 *p;
 
@@ -3877,8 +3953,9 @@ static const u32 nfs4_minimal_spo_must_enforce[2] = {
 
 static __be32
 nfsd4_encode_exchange_id(struct nfsd4_compoundres *resp, __be32 nfserr,
-			 struct nfsd4_exchange_id *exid)
+			 void *_exid)
 {
+	struct nfsd4_exchange_id *exid = _exid;
 	struct xdr_stream *xdr = &resp->xdr;
 	__be32 *p;
 	char *major_id;
@@ -3955,8 +4032,9 @@ nfsd4_encode_exchange_id(struct nfsd4_compoundres *resp, __be32 nfserr,
 
 static __be32
 nfsd4_encode_create_session(struct nfsd4_compoundres *resp, __be32 nfserr,
-			    struct nfsd4_create_session *sess)
+			    void *_sess)
 {
+	struct nfsd4_create_session *sess = _sess;
 	struct xdr_stream *xdr = &resp->xdr;
 	__be32 *p;
 
@@ -4011,8 +4089,9 @@ nfsd4_encode_create_session(struct nfsd4_compoundres *resp, __be32 nfserr,
 
 static __be32
 nfsd4_encode_sequence(struct nfsd4_compoundres *resp, __be32 nfserr,
-		      struct nfsd4_sequence *seq)
+		      void *_seq)
 {
+	struct nfsd4_sequence *seq = _seq;
 	struct xdr_stream *xdr = &resp->xdr;
 	__be32 *p;
 
@@ -4037,8 +4116,9 @@ nfsd4_encode_sequence(struct nfsd4_compoundres *resp, __be32 nfserr,
 
 static __be32
 nfsd4_encode_test_stateid(struct nfsd4_compoundres *resp, __be32 nfserr,
-			  struct nfsd4_test_stateid *test_stateid)
+			  void *_test_stateid)
 {
+	struct nfsd4_test_stateid *test_stateid = _test_stateid;
 	struct xdr_stream *xdr = &resp->xdr;
 	struct nfsd4_test_stateid_id *stateid, *next;
 	__be32 *p;
@@ -4060,9 +4140,9 @@ nfsd4_encode_test_stateid(struct nfsd4_compoundres *resp, __be32 nfserr,
 
 #ifdef CONFIG_NFSD_PNFS
 static __be32
-nfsd4_encode_getdeviceinfo(struct nfsd4_compoundres *resp, __be32 nfserr,
-		struct nfsd4_getdeviceinfo *gdev)
+nfsd4_encode_getdeviceinfo(struct nfsd4_compoundres *resp, __be32 nfserr, void *_gdev)
 {
+	struct nfsd4_getdeviceinfo *gdev = _gdev;
 	struct xdr_stream *xdr = &resp->xdr;
 	const struct nfsd4_layout_ops *ops =
 		nfsd4_layout_ops[gdev->gd_layout_type];
@@ -4130,9 +4210,9 @@ toosmall:
 }
 
 static __be32
-nfsd4_encode_layoutget(struct nfsd4_compoundres *resp, __be32 nfserr,
-		struct nfsd4_layoutget *lgp)
+nfsd4_encode_layoutget(struct nfsd4_compoundres *resp, __be32 nfserr, void *_lgp)
 {
+	struct nfsd4_layoutget *lgp = _lgp;
 	struct xdr_stream *xdr = &resp->xdr;
 	const struct nfsd4_layout_ops *ops =
 		nfsd4_layout_ops[lgp->lg_layout_type];
@@ -4165,9 +4245,9 @@ out:
 }
 
 static __be32
-nfsd4_encode_layoutcommit(struct nfsd4_compoundres *resp, __be32 nfserr,
-			  struct nfsd4_layoutcommit *lcp)
+nfsd4_encode_layoutcommit(struct nfsd4_compoundres *resp, __be32 nfserr, void *_lcp)
 {
+	struct nfsd4_layoutcommit *lcp = _lcp;
 	struct xdr_stream *xdr = &resp->xdr;
 	__be32 *p;
 
@@ -4189,9 +4269,9 @@ nfsd4_encode_layoutcommit(struct nfsd4_compoundres *resp, __be32 nfserr,
 }
 
 static __be32
-nfsd4_encode_layoutreturn(struct nfsd4_compoundres *resp, __be32 nfserr,
-		struct nfsd4_layoutreturn *lrp)
+nfsd4_encode_layoutreturn(struct nfsd4_compoundres *resp, __be32 nfserr, void *_lrp)
 {
+	struct nfsd4_layoutreturn *lrp = _lrp;
 	struct xdr_stream *xdr = &resp->xdr;
 	__be32 *p;
 
@@ -4210,8 +4290,9 @@ nfsd4_encode_layoutreturn(struct nfsd4_compoundres *resp, __be32 nfserr,
 
 static __be32
 nfsd4_encode_seek(struct nfsd4_compoundres *resp, __be32 nfserr,
-		  struct nfsd4_seek *seek)
+		  void *_seek)
 {
+	struct nfsd4_seek *seek= (struct nfsd4_seek *)_seek;
 	__be32 *p;
 
 	if (nfserr)
@@ -4238,87 +4319,87 @@ typedef __be32(* nfsd4_enc)(struct nfsd4_compoundres *, __be32, void *);
  * done in the decoding phase.
  */
 static nfsd4_enc nfsd4_enc_ops[] = {
-	[OP_ACCESS]		= (nfsd4_enc)nfsd4_encode_access,
-	[OP_CLOSE]		= (nfsd4_enc)nfsd4_encode_close,
-	[OP_COMMIT]		= (nfsd4_enc)nfsd4_encode_commit,
-	[OP_CREATE]		= (nfsd4_enc)nfsd4_encode_create,
-	[OP_DELEGPURGE]		= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_DELEGRETURN]	= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_GETATTR]		= (nfsd4_enc)nfsd4_encode_getattr,
-	[OP_GETFH]		= (nfsd4_enc)nfsd4_encode_getfh,
-	[OP_LINK]		= (nfsd4_enc)nfsd4_encode_link,
-	[OP_LOCK]		= (nfsd4_enc)nfsd4_encode_lock,
-	[OP_LOCKT]		= (nfsd4_enc)nfsd4_encode_lockt,
-	[OP_LOCKU]		= (nfsd4_enc)nfsd4_encode_locku,
-	[OP_LOOKUP]		= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_LOOKUPP]		= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_NVERIFY]		= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_OPEN]		= (nfsd4_enc)nfsd4_encode_open,
-	[OP_OPENATTR]		= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_OPEN_CONFIRM]	= (nfsd4_enc)nfsd4_encode_open_confirm,
-	[OP_OPEN_DOWNGRADE]	= (nfsd4_enc)nfsd4_encode_open_downgrade,
-	[OP_PUTFH]		= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_PUTPUBFH]		= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_PUTROOTFH]		= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_READ]		= (nfsd4_enc)nfsd4_encode_read,
-	[OP_READDIR]		= (nfsd4_enc)nfsd4_encode_readdir,
-	[OP_READLINK]		= (nfsd4_enc)nfsd4_encode_readlink,
-	[OP_REMOVE]		= (nfsd4_enc)nfsd4_encode_remove,
-	[OP_RENAME]		= (nfsd4_enc)nfsd4_encode_rename,
-	[OP_RENEW]		= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_RESTOREFH]		= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_SAVEFH]		= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_SECINFO]		= (nfsd4_enc)nfsd4_encode_secinfo,
-	[OP_SETATTR]		= (nfsd4_enc)nfsd4_encode_setattr,
-	[OP_SETCLIENTID]	= (nfsd4_enc)nfsd4_encode_setclientid,
-	[OP_SETCLIENTID_CONFIRM] = (nfsd4_enc)nfsd4_encode_noop,
-	[OP_VERIFY]		= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_WRITE]		= (nfsd4_enc)nfsd4_encode_write,
-	[OP_RELEASE_LOCKOWNER]	= (nfsd4_enc)nfsd4_encode_noop,
+	[OP_ACCESS]		= nfsd4_encode_access,
+	[OP_CLOSE]		= nfsd4_encode_close,
+	[OP_COMMIT]		= nfsd4_encode_commit,
+	[OP_CREATE]		= nfsd4_encode_create,
+	[OP_DELEGPURGE]		= nfsd4_encode_noop,
+	[OP_DELEGRETURN]	= nfsd4_encode_noop,
+	[OP_GETATTR]		= nfsd4_encode_getattr,
+	[OP_GETFH]		= nfsd4_encode_getfh,
+	[OP_LINK]		= nfsd4_encode_link,
+	[OP_LOCK]		= nfsd4_encode_lock,
+	[OP_LOCKT]		= nfsd4_encode_lockt,
+	[OP_LOCKU]		= nfsd4_encode_locku,
+	[OP_LOOKUP]		= nfsd4_encode_noop,
+	[OP_LOOKUPP]		= nfsd4_encode_noop,
+	[OP_NVERIFY]		= nfsd4_encode_noop,
+	[OP_OPEN]		= nfsd4_encode_open,
+	[OP_OPENATTR]		= nfsd4_encode_noop,
+	[OP_OPEN_CONFIRM]	= nfsd4_encode_open_confirm,
+	[OP_OPEN_DOWNGRADE]	= nfsd4_encode_open_downgrade,
+	[OP_PUTFH]		= nfsd4_encode_noop,
+	[OP_PUTPUBFH]		= nfsd4_encode_noop,
+	[OP_PUTROOTFH]		= nfsd4_encode_noop,
+	[OP_READ]		= nfsd4_encode_read,
+	[OP_READDIR]		= nfsd4_encode_readdir,
+	[OP_READLINK]		= nfsd4_encode_readlink,
+	[OP_REMOVE]		= nfsd4_encode_remove,
+	[OP_RENAME]		= nfsd4_encode_rename,
+	[OP_RENEW]		= nfsd4_encode_noop,
+	[OP_RESTOREFH]		= nfsd4_encode_noop,
+	[OP_SAVEFH]		= nfsd4_encode_noop,
+	[OP_SECINFO]		= nfsd4_encode_secinfo,
+	[OP_SETATTR]		= nfsd4_encode_setattr,
+	[OP_SETCLIENTID]	= nfsd4_encode_setclientid,
+	[OP_SETCLIENTID_CONFIRM] = nfsd4_encode_noop,
+	[OP_VERIFY]		= nfsd4_encode_noop,
+	[OP_WRITE]		= nfsd4_encode_write,
+	[OP_RELEASE_LOCKOWNER]	= nfsd4_encode_noop,
 
 	/* NFSv4.1 operations */
-	[OP_BACKCHANNEL_CTL]	= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_BIND_CONN_TO_SESSION] = (nfsd4_enc)nfsd4_encode_bind_conn_to_session,
-	[OP_EXCHANGE_ID]	= (nfsd4_enc)nfsd4_encode_exchange_id,
-	[OP_CREATE_SESSION]	= (nfsd4_enc)nfsd4_encode_create_session,
-	[OP_DESTROY_SESSION]	= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_FREE_STATEID]	= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_GET_DIR_DELEGATION]	= (nfsd4_enc)nfsd4_encode_noop,
+	[OP_BACKCHANNEL_CTL]	= nfsd4_encode_noop,
+	[OP_BIND_CONN_TO_SESSION] = nfsd4_encode_bind_conn_to_session,
+	[OP_EXCHANGE_ID]	= nfsd4_encode_exchange_id,
+	[OP_CREATE_SESSION]	= nfsd4_encode_create_session,
+	[OP_DESTROY_SESSION]	= nfsd4_encode_noop,
+	[OP_FREE_STATEID]	= nfsd4_encode_noop,
+	[OP_GET_DIR_DELEGATION]	= nfsd4_encode_noop,
 #ifdef CONFIG_NFSD_PNFS
-	[OP_GETDEVICEINFO]	= (nfsd4_enc)nfsd4_encode_getdeviceinfo,
-	[OP_GETDEVICELIST]	= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_LAYOUTCOMMIT]	= (nfsd4_enc)nfsd4_encode_layoutcommit,
-	[OP_LAYOUTGET]		= (nfsd4_enc)nfsd4_encode_layoutget,
-	[OP_LAYOUTRETURN]	= (nfsd4_enc)nfsd4_encode_layoutreturn,
+	[OP_GETDEVICEINFO]	= nfsd4_encode_getdeviceinfo,
+	[OP_GETDEVICELIST]	= nfsd4_encode_noop,
+	[OP_LAYOUTCOMMIT]	= nfsd4_encode_layoutcommit,
+	[OP_LAYOUTGET]		= nfsd4_encode_layoutget,
+	[OP_LAYOUTRETURN]	= nfsd4_encode_layoutreturn,
 #else
-	[OP_GETDEVICEINFO]	= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_GETDEVICELIST]	= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_LAYOUTCOMMIT]	= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_LAYOUTGET]		= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_LAYOUTRETURN]	= (nfsd4_enc)nfsd4_encode_noop,
+	[OP_GETDEVICEINFO]	= nfsd4_encode_noop,
+	[OP_GETDEVICELIST]	= nfsd4_encode_noop,
+	[OP_LAYOUTCOMMIT]	= nfsd4_encode_noop,
+	[OP_LAYOUTGET]		= nfsd4_encode_noop,
+	[OP_LAYOUTRETURN]	= nfsd4_encode_noop,
 #endif
-	[OP_SECINFO_NO_NAME]	= (nfsd4_enc)nfsd4_encode_secinfo_no_name,
-	[OP_SEQUENCE]		= (nfsd4_enc)nfsd4_encode_sequence,
-	[OP_SET_SSV]		= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_TEST_STATEID]	= (nfsd4_enc)nfsd4_encode_test_stateid,
-	[OP_WANT_DELEGATION]	= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_DESTROY_CLIENTID]	= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_RECLAIM_COMPLETE]	= (nfsd4_enc)nfsd4_encode_noop,
+	[OP_SECINFO_NO_NAME]	= nfsd4_encode_secinfo_no_name,
+	[OP_SEQUENCE]		= nfsd4_encode_sequence,
+	[OP_SET_SSV]		= nfsd4_encode_noop,
+	[OP_TEST_STATEID]	= nfsd4_encode_test_stateid,
+	[OP_WANT_DELEGATION]	= nfsd4_encode_noop,
+	[OP_DESTROY_CLIENTID]	= nfsd4_encode_noop,
+	[OP_RECLAIM_COMPLETE]	= nfsd4_encode_noop,
 
 	/* NFSv4.2 operations */
-	[OP_ALLOCATE]		= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_COPY]		= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_COPY_NOTIFY]	= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_DEALLOCATE]		= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_IO_ADVISE]		= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_LAYOUTERROR]	= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_LAYOUTSTATS]	= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_OFFLOAD_CANCEL]	= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_OFFLOAD_STATUS]	= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_READ_PLUS]		= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_SEEK]		= (nfsd4_enc)nfsd4_encode_seek,
-	[OP_WRITE_SAME]		= (nfsd4_enc)nfsd4_encode_noop,
-	[OP_CLONE]		= (nfsd4_enc)nfsd4_encode_noop,
+	[OP_ALLOCATE]		= nfsd4_encode_noop,
+	[OP_COPY]		= nfsd4_encode_noop,
+	[OP_COPY_NOTIFY]	= nfsd4_encode_noop,
+	[OP_DEALLOCATE]		= nfsd4_encode_noop,
+	[OP_IO_ADVISE]		= nfsd4_encode_noop,
+	[OP_LAYOUTERROR]	= nfsd4_encode_noop,
+	[OP_LAYOUTSTATS]	= nfsd4_encode_noop,
+	[OP_OFFLOAD_CANCEL]	= nfsd4_encode_noop,
+	[OP_OFFLOAD_STATUS]	= nfsd4_encode_noop,
+	[OP_READ_PLUS]		= nfsd4_encode_noop,
+	[OP_SEEK]		= nfsd4_encode_seek,
+	[OP_WRITE_SAME]		= nfsd4_encode_noop,
+	[OP_CLONE]		= nfsd4_encode_noop,
 };
 
 /*
@@ -4443,9 +4524,9 @@ nfsd4_encode_replay(struct xdr_stream *xdr, struct nfsd4_op *op)
 }
 
 int
-nfs4svc_encode_voidres(struct svc_rqst *rqstp, __be32 *p, void *dummy)
+nfs4svc_encode_voidres(void *rqstp, __be32 *p, void *dummy)
 {
-        return xdr_ressize_check(rqstp, p);
+	return xdr_ressize_check(rqstp, p);
 }
 
 int nfsd4_release_compoundargs(void *rq, __be32 *p, void *resp)
@@ -4468,8 +4549,11 @@ int nfsd4_release_compoundargs(void *rq, __be32 *p, void *resp)
 }
 
 int
-nfs4svc_decode_compoundargs(struct svc_rqst *rqstp, __be32 *p, struct nfsd4_compoundargs *args)
+nfs4svc_decode_compoundargs(void *_rqstp, __be32 *p, void *_args)
 {
+	struct svc_rqst *rqstp = _rqstp;
+	struct nfsd4_compoundargs *args = _args;
+
 	if (rqstp->rq_arg.head[0].iov_len % 4) {
 		/* client is nuts */
 		dprintk("%s: compound not properly padded! (peeraddr=%pISc xid=0x%x)",
@@ -4489,11 +4573,13 @@ nfs4svc_decode_compoundargs(struct svc_rqst *rqstp, __be32 *p, struct nfsd4_comp
 }
 
 int
-nfs4svc_encode_compoundres(struct svc_rqst *rqstp, __be32 *p, struct nfsd4_compoundres *resp)
+nfs4svc_encode_compoundres(void *_rqstp, __be32 *p, void *_resp)
 {
 	/*
 	 * All that remains is to write the tag and operation count...
 	 */
+	struct svc_rqst *rqstp = _rqstp;
+	struct nfsd4_compoundres *resp = _resp;
 	struct xdr_buf *buf = resp->xdr.buf;
 
 	WARN_ON_ONCE(buf->len != buf->head[0].iov_len + buf->page_len +
diff --git a/fs/nfsd/nfscache.c b/fs/nfsd/nfscache.c
index 54cde9a..ff5756c 100644
--- a/fs/nfsd/nfscache.c
+++ b/fs/nfsd/nfscache.c
@@ -513,7 +513,7 @@ nfsd_cache_update(struct svc_rqst *rqstp, int cachetype, __be32 *statp)
 	struct kvec	*resv = &rqstp->rq_res.head[0], *cachv;
 	u32		hash;
 	struct nfsd_drc_bucket *b;
-	int		len;
+	long		len;
 	size_t		bufsize = 0;
 
 	if (!rp)
@@ -522,11 +522,14 @@ nfsd_cache_update(struct svc_rqst *rqstp, int cachetype, __be32 *statp)
 	hash = nfsd_cache_hash(rp->c_xid);
 	b = &drc_hashtbl[hash];
 
-	len = resv->iov_len - ((char*)statp - (char*)resv->iov_base);
-	len >>= 2;
+	if (statp) {
+		len = (char*)statp - (char*)resv->iov_base;
+		len = resv->iov_len - len;
+		len >>= 2;
+	}
 
 	/* Don't cache excessive amounts of data and XDR failures */
-	if (!statp || len > (256 >> 2)) {
+	if (!statp || len > (256 >> 2) || len < 0) {
 		nfsd_reply_cache_free(b, rp);
 		return;
 	}
@@ -534,7 +537,7 @@ nfsd_cache_update(struct svc_rqst *rqstp, int cachetype, __be32 *statp)
 	switch (cachetype) {
 	case RC_REPLSTAT:
 		if (len != 1)
-			printk("nfsd: RC_REPLSTAT/reply len %d!\n",len);
+			printk("nfsd: RC_REPLSTAT/reply len %ld!\n",len);
 		rp->c_replstat = *statp;
 		break;
 	case RC_REPLBUFF:
diff --git a/fs/nfsd/nfsproc.c b/fs/nfsd/nfsproc.c
index 4cd78ef..353e084 100644
--- a/fs/nfsd/nfsproc.c
+++ b/fs/nfsd/nfsproc.c
@@ -39,9 +39,11 @@ nfsd_return_dirop(__be32 err, struct nfsd_diropres *resp)
  * N.B. After this call resp->fh needs an fh_put
  */
 static __be32
-nfsd_proc_getattr(struct svc_rqst *rqstp, struct nfsd_fhandle  *argp,
-					  struct nfsd_attrstat *resp)
+nfsd_proc_getattr(struct svc_rqst *rqstp, void *_argp,
+					  void *_resp)
 {
+	struct nfsd_fhandle *argp = _argp;
+	struct nfsd_attrstat *resp = _resp;
 	__be32 nfserr;
 	dprintk("nfsd: GETATTR  %s\n", SVCFH_fmt(&argp->fh));
 
@@ -56,9 +58,11 @@ nfsd_proc_getattr(struct svc_rqst *rqstp, struct nfsd_fhandle  *argp,
  * N.B. After this call resp->fh needs an fh_put
  */
 static __be32
-nfsd_proc_setattr(struct svc_rqst *rqstp, struct nfsd_sattrargs *argp,
-					  struct nfsd_attrstat  *resp)
+nfsd_proc_setattr(struct svc_rqst *rqstp, void *_argp,
+					  void *_resp)
 {
+	struct nfsd_sattrargs *argp = _argp;
+	struct nfsd_attrstat *resp = _resp;
 	struct iattr *iap = &argp->attrs;
 	struct svc_fh *fhp;
 	__be32 nfserr;
@@ -124,9 +128,11 @@ done:
  * N.B. After this call resp->fh needs an fh_put
  */
 static __be32
-nfsd_proc_lookup(struct svc_rqst *rqstp, struct nfsd_diropargs *argp,
-					 struct nfsd_diropres  *resp)
+nfsd_proc_lookup(struct svc_rqst *rqstp, void *_argp,
+					 void *_resp)
 {
+	struct nfsd_diropargs *argp = _argp;
+	struct nfsd_diropres *resp = _resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: LOOKUP   %s %.*s\n",
@@ -144,9 +150,11 @@ nfsd_proc_lookup(struct svc_rqst *rqstp, struct nfsd_diropargs *argp,
  * Read a symlink.
  */
 static __be32
-nfsd_proc_readlink(struct svc_rqst *rqstp, struct nfsd_readlinkargs *argp,
-					   struct nfsd_readlinkres *resp)
+nfsd_proc_readlink(struct svc_rqst *rqstp, void *_argp,
+					   void *_resp)
 {
+	struct nfsd_readlinkargs *argp = _argp;
+	struct nfsd_readlinkres *resp = _resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: READLINK %s\n", SVCFH_fmt(&argp->fh));
@@ -164,9 +172,11 @@ nfsd_proc_readlink(struct svc_rqst *rqstp, struct nfsd_readlinkargs *argp,
  * N.B. After this call resp->fh needs an fh_put
  */
 static __be32
-nfsd_proc_read(struct svc_rqst *rqstp, struct nfsd_readargs *argp,
-				       struct nfsd_readres  *resp)
+nfsd_proc_read(struct svc_rqst *rqstp, void *_argp,
+				       void *_resp)
 {
+	struct nfsd_readargs *argp = _argp;
+	struct nfsd_readres *resp = _resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: READ    %s %d bytes at %d\n",
@@ -202,9 +212,11 @@ nfsd_proc_read(struct svc_rqst *rqstp, struct nfsd_readargs *argp,
  * N.B. After this call resp->fh needs an fh_put
  */
 static __be32
-nfsd_proc_write(struct svc_rqst *rqstp, struct nfsd_writeargs *argp,
-					struct nfsd_attrstat  *resp)
+nfsd_proc_write(struct svc_rqst *rqstp, void *_argp,
+					void *_resp)
 {
+	struct nfsd_writeargs *argp = _argp;
+	struct nfsd_attrstat *resp = _resp;
 	__be32	nfserr;
 	int	stable = 1;
 	unsigned long cnt = argp->len;
@@ -228,9 +240,11 @@ nfsd_proc_write(struct svc_rqst *rqstp, struct nfsd_writeargs *argp,
  * N.B. After this call _both_ argp->fh and resp->fh need an fh_put
  */
 static __be32
-nfsd_proc_create(struct svc_rqst *rqstp, struct nfsd_createargs *argp,
-					 struct nfsd_diropres   *resp)
+nfsd_proc_create(struct svc_rqst *rqstp, void *_argp,
+					 void *_resp)
 {
+	struct nfsd_createargs *argp = _argp;
+	struct nfsd_diropres  *resp = _resp;
 	svc_fh		*dirfhp = &argp->fh;
 	svc_fh		*newfhp = &resp->fh;
 	struct iattr	*attr = &argp->attrs;
@@ -386,9 +400,10 @@ done:
 }
 
 static __be32
-nfsd_proc_remove(struct svc_rqst *rqstp, struct nfsd_diropargs *argp,
+nfsd_proc_remove(struct svc_rqst *rqstp, void *_argp,
 					 void		       *resp)
 {
+	struct nfsd_diropargs *argp = _argp;
 	__be32	nfserr;
 
 	dprintk("nfsd: REMOVE   %s %.*s\n", SVCFH_fmt(&argp->fh),
@@ -401,9 +416,10 @@ nfsd_proc_remove(struct svc_rqst *rqstp, struct nfsd_diropargs *argp,
 }
 
 static __be32
-nfsd_proc_rename(struct svc_rqst *rqstp, struct nfsd_renameargs *argp,
+nfsd_proc_rename(struct svc_rqst *rqstp, void *_argp,
 				  	 void		        *resp)
 {
+	struct nfsd_renameargs *argp = _argp;
 	__be32	nfserr;
 
 	dprintk("nfsd: RENAME   %s %.*s -> \n",
@@ -419,9 +435,10 @@ nfsd_proc_rename(struct svc_rqst *rqstp, struct nfsd_renameargs *argp,
 }
 
 static __be32
-nfsd_proc_link(struct svc_rqst *rqstp, struct nfsd_linkargs *argp,
+nfsd_proc_link(struct svc_rqst *rqstp, void *_argp,
 				void			    *resp)
 {
+	struct nfsd_linkargs *argp = _argp;
 	__be32	nfserr;
 
 	dprintk("nfsd: LINK     %s ->\n",
@@ -439,9 +456,10 @@ nfsd_proc_link(struct svc_rqst *rqstp, struct nfsd_linkargs *argp,
 }
 
 static __be32
-nfsd_proc_symlink(struct svc_rqst *rqstp, struct nfsd_symlinkargs *argp,
+nfsd_proc_symlink(struct svc_rqst *rqstp, void *_argp,
 				          void			  *resp)
 {
+	struct nfsd_symlinkargs *argp = _argp;
 	struct svc_fh	newfh;
 	__be32		nfserr;
 
@@ -469,9 +487,11 @@ nfsd_proc_symlink(struct svc_rqst *rqstp, struct nfsd_symlinkargs *argp,
  * N.B. After this call resp->fh needs an fh_put
  */
 static __be32
-nfsd_proc_mkdir(struct svc_rqst *rqstp, struct nfsd_createargs *argp,
-					struct nfsd_diropres   *resp)
+nfsd_proc_mkdir(struct svc_rqst *rqstp, void *_argp,
+					void *_resp)
 {
+	struct nfsd_createargs *argp = _argp;
+	struct nfsd_diropres *resp = _resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: MKDIR    %s %.*s\n", SVCFH_fmt(&argp->fh), argp->len, argp->name);
@@ -493,9 +513,10 @@ nfsd_proc_mkdir(struct svc_rqst *rqstp, struct nfsd_createargs *argp,
  * Remove a directory
  */
 static __be32
-nfsd_proc_rmdir(struct svc_rqst *rqstp, struct nfsd_diropargs *argp,
+nfsd_proc_rmdir(struct svc_rqst *rqstp, void *_argp,
 				 	void		      *resp)
 {
+	struct nfsd_diropargs *argp = _argp;
 	__be32	nfserr;
 
 	dprintk("nfsd: RMDIR    %s %.*s\n", SVCFH_fmt(&argp->fh), argp->len, argp->name);
@@ -509,9 +530,11 @@ nfsd_proc_rmdir(struct svc_rqst *rqstp, struct nfsd_diropargs *argp,
  * Read a portion of a directory.
  */
 static __be32
-nfsd_proc_readdir(struct svc_rqst *rqstp, struct nfsd_readdirargs *argp,
-					  struct nfsd_readdirres  *resp)
+nfsd_proc_readdir(struct svc_rqst *rqstp, void *_argp,
+					  void *_resp)
 {
+	struct nfsd_readdirargs *argp = _argp;
+	struct nfsd_readdirres  *resp = _resp;
 	int		count;
 	__be32		nfserr;
 	loff_t		offset;
@@ -549,9 +572,11 @@ nfsd_proc_readdir(struct svc_rqst *rqstp, struct nfsd_readdirargs *argp,
  * Get file system info
  */
 static __be32
-nfsd_proc_statfs(struct svc_rqst * rqstp, struct nfsd_fhandle   *argp,
-					  struct nfsd_statfsres *resp)
+nfsd_proc_statfs(struct svc_rqst * rqstp, void *_argp,
+					  void *_resp)
 {
+	struct nfsd_fhandle *argp = _argp;
+	struct nfsd_statfsres *resp = _resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: STATFS   %s\n", SVCFH_fmt(&argp->fh));
@@ -574,166 +599,166 @@ struct nfsd_void { int dummy; };
 
 static struct svc_procedure		nfsd_procedures2[18] = {
 	[NFSPROC_NULL] = {
-		.pc_func = (svc_procfunc) nfsd_proc_null,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_void,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_void,
+		.pc_func = nfsd_proc_null,
+		.pc_decode = nfssvc_decode_void,
+		.pc_encode = nfssvc_encode_void,
 		.pc_argsize = sizeof(struct nfsd_void),
 		.pc_ressize = sizeof(struct nfsd_void),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST,
 	},
 	[NFSPROC_GETATTR] = {
-		.pc_func = (svc_procfunc) nfsd_proc_getattr,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_fhandle,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_attrstat,
-		.pc_release = (kxdrproc_t) nfssvc_release_fhandle,
+		.pc_func = nfsd_proc_getattr,
+		.pc_decode = nfssvc_decode_fhandle,
+		.pc_encode = nfssvc_encode_attrstat,
+		.pc_release = nfssvc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd_fhandle),
 		.pc_ressize = sizeof(struct nfsd_attrstat),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST+AT,
 	},
 	[NFSPROC_SETATTR] = {
-		.pc_func = (svc_procfunc) nfsd_proc_setattr,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_sattrargs,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_attrstat,
-		.pc_release = (kxdrproc_t) nfssvc_release_fhandle,
+		.pc_func = nfsd_proc_setattr,
+		.pc_decode = nfssvc_decode_sattrargs,
+		.pc_encode = nfssvc_encode_attrstat,
+		.pc_release = nfssvc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd_sattrargs),
 		.pc_ressize = sizeof(struct nfsd_attrstat),
 		.pc_cachetype = RC_REPLBUFF,
 		.pc_xdrressize = ST+AT,
 	},
 	[NFSPROC_ROOT] = {
-		.pc_decode = (kxdrproc_t) nfssvc_decode_void,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_void,
+		.pc_decode = nfssvc_decode_void,
+		.pc_encode = nfssvc_encode_void,
 		.pc_argsize = sizeof(struct nfsd_void),
 		.pc_ressize = sizeof(struct nfsd_void),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST,
 	},
 	[NFSPROC_LOOKUP] = {
-		.pc_func = (svc_procfunc) nfsd_proc_lookup,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_diropargs,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_diropres,
-		.pc_release = (kxdrproc_t) nfssvc_release_fhandle,
+		.pc_func = nfsd_proc_lookup,
+		.pc_decode = nfssvc_decode_diropargs,
+		.pc_encode = nfssvc_encode_diropres,
+		.pc_release = nfssvc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd_diropargs),
 		.pc_ressize = sizeof(struct nfsd_diropres),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST+FH+AT,
 	},
 	[NFSPROC_READLINK] = {
-		.pc_func = (svc_procfunc) nfsd_proc_readlink,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_readlinkargs,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_readlinkres,
+		.pc_func = nfsd_proc_readlink,
+		.pc_decode = nfssvc_decode_readlinkargs,
+		.pc_encode = nfssvc_encode_readlinkres,
 		.pc_argsize = sizeof(struct nfsd_readlinkargs),
 		.pc_ressize = sizeof(struct nfsd_readlinkres),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST+1+NFS_MAXPATHLEN/4,
 	},
 	[NFSPROC_READ] = {
-		.pc_func = (svc_procfunc) nfsd_proc_read,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_readargs,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_readres,
-		.pc_release = (kxdrproc_t) nfssvc_release_fhandle,
+		.pc_func = nfsd_proc_read,
+		.pc_decode = nfssvc_decode_readargs,
+		.pc_encode = nfssvc_encode_readres,
+		.pc_release = nfssvc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd_readargs),
 		.pc_ressize = sizeof(struct nfsd_readres),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST+AT+1+NFSSVC_MAXBLKSIZE_V2/4,
 	},
 	[NFSPROC_WRITECACHE] = {
-		.pc_decode = (kxdrproc_t) nfssvc_decode_void,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_void,
+		.pc_decode = nfssvc_decode_void,
+		.pc_encode = nfssvc_encode_void,
 		.pc_argsize = sizeof(struct nfsd_void),
 		.pc_ressize = sizeof(struct nfsd_void),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST,
 	},
 	[NFSPROC_WRITE] = {
-		.pc_func = (svc_procfunc) nfsd_proc_write,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_writeargs,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_attrstat,
-		.pc_release = (kxdrproc_t) nfssvc_release_fhandle,
+		.pc_func = nfsd_proc_write,
+		.pc_decode = nfssvc_decode_writeargs,
+		.pc_encode = nfssvc_encode_attrstat,
+		.pc_release = nfssvc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd_writeargs),
 		.pc_ressize = sizeof(struct nfsd_attrstat),
 		.pc_cachetype = RC_REPLBUFF,
 		.pc_xdrressize = ST+AT,
 	},
 	[NFSPROC_CREATE] = {
-		.pc_func = (svc_procfunc) nfsd_proc_create,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_createargs,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_diropres,
-		.pc_release = (kxdrproc_t) nfssvc_release_fhandle,
+		.pc_func = nfsd_proc_create,
+		.pc_decode = nfssvc_decode_createargs,
+		.pc_encode = nfssvc_encode_diropres,
+		.pc_release = nfssvc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd_createargs),
 		.pc_ressize = sizeof(struct nfsd_diropres),
 		.pc_cachetype = RC_REPLBUFF,
 		.pc_xdrressize = ST+FH+AT,
 	},
 	[NFSPROC_REMOVE] = {
-		.pc_func = (svc_procfunc) nfsd_proc_remove,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_diropargs,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_void,
+		.pc_func = nfsd_proc_remove,
+		.pc_decode = nfssvc_decode_diropargs,
+		.pc_encode = nfssvc_encode_void,
 		.pc_argsize = sizeof(struct nfsd_diropargs),
 		.pc_ressize = sizeof(struct nfsd_void),
 		.pc_cachetype = RC_REPLSTAT,
 		.pc_xdrressize = ST,
 	},
 	[NFSPROC_RENAME] = {
-		.pc_func = (svc_procfunc) nfsd_proc_rename,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_renameargs,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_void,
+		.pc_func = nfsd_proc_rename,
+		.pc_decode = nfssvc_decode_renameargs,
+		.pc_encode = nfssvc_encode_void,
 		.pc_argsize = sizeof(struct nfsd_renameargs),
 		.pc_ressize = sizeof(struct nfsd_void),
 		.pc_cachetype = RC_REPLSTAT,
 		.pc_xdrressize = ST,
 	},
 	[NFSPROC_LINK] = {
-		.pc_func = (svc_procfunc) nfsd_proc_link,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_linkargs,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_void,
+		.pc_func = nfsd_proc_link,
+		.pc_decode = nfssvc_decode_linkargs,
+		.pc_encode = nfssvc_encode_void,
 		.pc_argsize = sizeof(struct nfsd_linkargs),
 		.pc_ressize = sizeof(struct nfsd_void),
 		.pc_cachetype = RC_REPLSTAT,
 		.pc_xdrressize = ST,
 	},
 	[NFSPROC_SYMLINK] = {
-		.pc_func = (svc_procfunc) nfsd_proc_symlink,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_symlinkargs,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_void,
+		.pc_func = nfsd_proc_symlink,
+		.pc_decode = nfssvc_decode_symlinkargs,
+		.pc_encode = nfssvc_encode_void,
 		.pc_argsize = sizeof(struct nfsd_symlinkargs),
 		.pc_ressize = sizeof(struct nfsd_void),
 		.pc_cachetype = RC_REPLSTAT,
 		.pc_xdrressize = ST,
 	},
 	[NFSPROC_MKDIR] = {
-		.pc_func = (svc_procfunc) nfsd_proc_mkdir,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_createargs,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_diropres,
-		.pc_release = (kxdrproc_t) nfssvc_release_fhandle,
+		.pc_func = nfsd_proc_mkdir,
+		.pc_decode = nfssvc_decode_createargs,
+		.pc_encode = nfssvc_encode_diropres,
+		.pc_release = nfssvc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd_createargs),
 		.pc_ressize = sizeof(struct nfsd_diropres),
 		.pc_cachetype = RC_REPLBUFF,
 		.pc_xdrressize = ST+FH+AT,
 	},
 	[NFSPROC_RMDIR] = {
-		.pc_func = (svc_procfunc) nfsd_proc_rmdir,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_diropargs,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_void,
+		.pc_func = nfsd_proc_rmdir,
+		.pc_decode = nfssvc_decode_diropargs,
+		.pc_encode = nfssvc_encode_void,
 		.pc_argsize = sizeof(struct nfsd_diropargs),
 		.pc_ressize = sizeof(struct nfsd_void),
 		.pc_cachetype = RC_REPLSTAT,
 		.pc_xdrressize = ST,
 	},
 	[NFSPROC_READDIR] = {
-		.pc_func = (svc_procfunc) nfsd_proc_readdir,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_readdirargs,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_readdirres,
+		.pc_func = nfsd_proc_readdir,
+		.pc_decode = nfssvc_decode_readdirargs,
+		.pc_encode = nfssvc_encode_readdirres,
 		.pc_argsize = sizeof(struct nfsd_readdirargs),
 		.pc_ressize = sizeof(struct nfsd_readdirres),
 		.pc_cachetype = RC_NOCACHE,
 	},
 	[NFSPROC_STATFS] = {
-		.pc_func = (svc_procfunc) nfsd_proc_statfs,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_fhandle,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_statfsres,
+		.pc_func = nfsd_proc_statfs,
+		.pc_decode = nfssvc_decode_fhandle,
+		.pc_encode = nfssvc_encode_statfsres,
 		.pc_argsize = sizeof(struct nfsd_fhandle),
 		.pc_ressize = sizeof(struct nfsd_statfsres),
 		.pc_cachetype = RC_NOCACHE,
diff --git a/fs/nfsd/nfsxdr.c b/fs/nfsd/nfsxdr.c
index 79d964a..bbf050b 100644
--- a/fs/nfsd/nfsxdr.c
+++ b/fs/nfsd/nfsxdr.c
@@ -206,14 +206,16 @@ __be32 *nfs2svc_encode_fattr(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *f
  * XDR decode functions
  */
 int
-nfssvc_decode_void(struct svc_rqst *rqstp, __be32 *p, void *dummy)
+nfssvc_decode_void(void *rqstp, __be32 *p, void *dummy)
 {
 	return xdr_argsize_check(rqstp, p);
 }
 
 int
-nfssvc_decode_fhandle(struct svc_rqst *rqstp, __be32 *p, struct nfsd_fhandle *args)
+nfssvc_decode_fhandle(void *rqstp, __be32 *p, void *_args)
 {
+	struct nfsd_fhandle *args = _args;
+
 	p = decode_fh(p, &args->fh);
 	if (!p)
 		return 0;
@@ -221,9 +223,10 @@ nfssvc_decode_fhandle(struct svc_rqst *rqstp, __be32 *p, struct nfsd_fhandle *ar
 }
 
 int
-nfssvc_decode_sattrargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_sattrargs *args)
+nfssvc_decode_sattrargs(void *rqstp, __be32 *p, void *_args)
 {
+	struct nfsd_sattrargs *args = _args;
+
 	p = decode_fh(p, &args->fh);
 	if (!p)
 		return 0;
@@ -233,9 +236,10 @@ nfssvc_decode_sattrargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfssvc_decode_diropargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_diropargs *args)
+nfssvc_decode_diropargs(void *rqstp, __be32 *p, void *_args)
 {
+	struct nfsd_diropargs *args = _args;
+
 	if (!(p = decode_fh(p, &args->fh))
 	 || !(p = decode_filename(p, &args->name, &args->len)))
 		return 0;
@@ -244,9 +248,10 @@ nfssvc_decode_diropargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfssvc_decode_readargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_readargs *args)
+nfssvc_decode_readargs(void *_rqstp, __be32 *p, void *_args)
 {
+	struct svc_rqst *rqstp = _rqstp;
+	struct nfsd_readargs *args = _args;
 	unsigned int len;
 	int v;
 	p = decode_fh(p, &args->fh);
@@ -276,9 +281,10 @@ nfssvc_decode_readargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfssvc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_writeargs *args)
+nfssvc_decode_writeargs(void *_rqstp, __be32 *p, void *_args)
 {
+	struct svc_rqst *rqstp = _rqstp;
+	struct nfsd_writeargs *args = _args;
 	unsigned int len, hdr, dlen;
 	int v;
 
@@ -330,9 +336,10 @@ nfssvc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfssvc_decode_createargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_createargs *args)
+nfssvc_decode_createargs(void *rqstp, __be32 *p, void *_args)
 {
+	struct nfsd_createargs *args = _args;
+
 	if (   !(p = decode_fh(p, &args->fh))
 	    || !(p = decode_filename(p, &args->name, &args->len)))
 		return 0;
@@ -342,9 +349,10 @@ nfssvc_decode_createargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfssvc_decode_renameargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_renameargs *args)
+nfssvc_decode_renameargs(void *rqstp, __be32 *p, void *_args)
 {
+	struct nfsd_renameargs *args = _args;
+
 	if (!(p = decode_fh(p, &args->ffh))
 	 || !(p = decode_filename(p, &args->fname, &args->flen))
 	 || !(p = decode_fh(p, &args->tfh))
@@ -355,8 +363,11 @@ nfssvc_decode_renameargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfssvc_decode_readlinkargs(struct svc_rqst *rqstp, __be32 *p, struct nfsd_readlinkargs *args)
+nfssvc_decode_readlinkargs(void *_rqstp, __be32 *p, void *_args)
 {
+	struct svc_rqst *rqstp = _rqstp;
+	struct nfsd_readlinkargs *args = _args;
+
 	p = decode_fh(p, &args->fh);
 	if (!p)
 		return 0;
@@ -366,9 +377,10 @@ nfssvc_decode_readlinkargs(struct svc_rqst *rqstp, __be32 *p, struct nfsd_readli
 }
 
 int
-nfssvc_decode_linkargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_linkargs *args)
+nfssvc_decode_linkargs(void *rqstp, __be32 *p, void *_args)
 {
+	struct nfsd_linkargs *args = _args;
+
 	if (!(p = decode_fh(p, &args->ffh))
 	 || !(p = decode_fh(p, &args->tfh))
 	 || !(p = decode_filename(p, &args->tname, &args->tlen)))
@@ -378,9 +390,10 @@ nfssvc_decode_linkargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfssvc_decode_symlinkargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_symlinkargs *args)
+nfssvc_decode_symlinkargs(void *rqstp, __be32 *p, void *_args)
 {
+	struct nfsd_symlinkargs *args = _args;
+
 	if (   !(p = decode_fh(p, &args->ffh))
 	    || !(p = decode_filename(p, &args->fname, &args->flen))
 	    || !(p = decode_pathname(p, &args->tname, &args->tlen)))
@@ -391,9 +404,11 @@ nfssvc_decode_symlinkargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfssvc_decode_readdirargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_readdirargs *args)
+nfssvc_decode_readdirargs(void *_rqstp, __be32 *p, void *_args)
 {
+	struct svc_rqst *rqstp = _rqstp;
+	struct nfsd_readdirargs *args = _args;
+
 	p = decode_fh(p, &args->fh);
 	if (!p)
 		return 0;
@@ -409,32 +424,36 @@ nfssvc_decode_readdirargs(struct svc_rqst *rqstp, __be32 *p,
  * XDR encode functions
  */
 int
-nfssvc_encode_void(struct svc_rqst *rqstp, __be32 *p, void *dummy)
+nfssvc_encode_void(void *rqstp, __be32 *p, void *dummy)
 {
 	return xdr_ressize_check(rqstp, p);
 }
 
 int
-nfssvc_encode_attrstat(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_attrstat *resp)
+nfssvc_encode_attrstat(void *rqstp, __be32 *p, void *_resp)
 {
+	struct nfsd_diropres *resp = _resp;
+
 	p = encode_fattr(rqstp, p, &resp->fh, &resp->stat);
 	return xdr_ressize_check(rqstp, p);
 }
 
 int
-nfssvc_encode_diropres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_diropres *resp)
+nfssvc_encode_diropres(void *rqstp, __be32 *p, void *_resp)
 {
+	struct nfsd_diropres *resp = _resp;
+
 	p = encode_fh(p, &resp->fh);
 	p = encode_fattr(rqstp, p, &resp->fh, &resp->stat);
 	return xdr_ressize_check(rqstp, p);
 }
 
 int
-nfssvc_encode_readlinkres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_readlinkres *resp)
+nfssvc_encode_readlinkres(void *_rqstp, __be32 *p, void *_resp)
 {
+	struct svc_rqst *rqstp= _rqstp;
+	struct nfsd_readlinkres *resp = _resp;
+
 	*p++ = htonl(resp->len);
 	xdr_ressize_check(rqstp, p);
 	rqstp->rq_res.page_len = resp->len;
@@ -448,9 +467,11 @@ nfssvc_encode_readlinkres(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfssvc_encode_readres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_readres *resp)
+nfssvc_encode_readres(void *_rqstp, __be32 *p, void *_resp)
 {
+	struct svc_rqst *rqstp = _rqstp;
+	struct nfsd_readres *resp = _resp;
+
 	p = encode_fattr(rqstp, p, &resp->fh, &resp->stat);
 	*p++ = htonl(resp->count);
 	xdr_ressize_check(rqstp, p);
@@ -467,9 +488,11 @@ nfssvc_encode_readres(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfssvc_encode_readdirres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_readdirres *resp)
+nfssvc_encode_readdirres(void *_rqstp, __be32 *p, void *_resp)
 {
+	struct svc_rqst *rqstp = _rqstp;
+	struct nfsd_readdirres *resp = _resp;
+
 	xdr_ressize_check(rqstp, p);
 	p = resp->buffer;
 	*p++ = 0;			/* no more entries */
@@ -480,9 +503,9 @@ nfssvc_encode_readdirres(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfssvc_encode_statfsres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_statfsres *resp)
+nfssvc_encode_statfsres(void *rqstp, __be32 *p, void *_resp)
 {
+	struct nfsd_statfsres *resp = _resp;
 	struct kstatfs	*stat = &resp->stats;
 
 	*p++ = htonl(NFSSVC_MAXBLKSIZE_V2);	/* max transfer size */
@@ -542,9 +565,10 @@ nfssvc_encode_entry(void *ccdv, const char *name,
  * XDR release functions
  */
 int
-nfssvc_release_fhandle(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_fhandle *resp)
+nfssvc_release_fhandle(void *rqstp, __be32 *p, void *_resp)
 {
+	struct nfsd_fhandle *resp = _resp;
+
 	fh_put(&resp->fh);
 	return 1;
 }
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index d40010e..0a2bdf7 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -870,7 +870,7 @@ __be32 nfsd_readv(struct file *file, loff_t offset, struct kvec *vec, int vlen,
 
 	oldfs = get_fs();
 	set_fs(KERNEL_DS);
-	host_err = vfs_readv(file, (struct iovec __user *)vec, vlen, &offset, 0);
+	host_err = vfs_readv(file, (struct iovec __force_user *)vec, vlen, &offset, 0);
 	set_fs(oldfs);
 	return nfsd_finish_read(file, count, host_err);
 }
@@ -957,7 +957,7 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
 
 	/* Write the data. */
 	oldfs = get_fs(); set_fs(KERNEL_DS);
-	host_err = vfs_writev(file, (struct iovec __user *)vec, vlen, &pos, 0);
+	host_err = vfs_writev(file, (struct iovec __force_user *)vec, vlen, &pos, 0);
 	set_fs(oldfs);
 	if (host_err < 0)
 		goto out_nfserr;
@@ -1478,7 +1478,7 @@ nfsd_readlink(struct svc_rqst *rqstp, struct svc_fh *fhp, char *buf, int *lenp)
 	 */
 
 	oldfs = get_fs(); set_fs(KERNEL_DS);
-	host_err = inode->i_op->readlink(path.dentry, (char __user *)buf, *lenp);
+	host_err = inode->i_op->readlink(path.dentry, (char __force_user *)buf, *lenp);
 	set_fs(oldfs);
 
 	if (host_err < 0)
diff --git a/fs/nfsd/xdr.h b/fs/nfsd/xdr.h
index 4f0481d..193c8e7 100644
--- a/fs/nfsd/xdr.h
+++ b/fs/nfsd/xdr.h
@@ -131,40 +131,30 @@ union nfsd_xdrstore {
 #define NFS2_SVC_XDRSIZE	sizeof(union nfsd_xdrstore)
 
 
-int nfssvc_decode_void(struct svc_rqst *, __be32 *, void *);
-int nfssvc_decode_fhandle(struct svc_rqst *, __be32 *, struct nfsd_fhandle *);
-int nfssvc_decode_sattrargs(struct svc_rqst *, __be32 *,
-				struct nfsd_sattrargs *);
-int nfssvc_decode_diropargs(struct svc_rqst *, __be32 *,
-				struct nfsd_diropargs *);
-int nfssvc_decode_readargs(struct svc_rqst *, __be32 *,
-				struct nfsd_readargs *);
-int nfssvc_decode_writeargs(struct svc_rqst *, __be32 *,
-				struct nfsd_writeargs *);
-int nfssvc_decode_createargs(struct svc_rqst *, __be32 *,
-				struct nfsd_createargs *);
-int nfssvc_decode_renameargs(struct svc_rqst *, __be32 *,
-				struct nfsd_renameargs *);
-int nfssvc_decode_readlinkargs(struct svc_rqst *, __be32 *,
-				struct nfsd_readlinkargs *);
-int nfssvc_decode_linkargs(struct svc_rqst *, __be32 *,
-				struct nfsd_linkargs *);
-int nfssvc_decode_symlinkargs(struct svc_rqst *, __be32 *,
-				struct nfsd_symlinkargs *);
-int nfssvc_decode_readdirargs(struct svc_rqst *, __be32 *,
-				struct nfsd_readdirargs *);
-int nfssvc_encode_void(struct svc_rqst *, __be32 *, void *);
-int nfssvc_encode_attrstat(struct svc_rqst *, __be32 *, struct nfsd_attrstat *);
-int nfssvc_encode_diropres(struct svc_rqst *, __be32 *, struct nfsd_diropres *);
-int nfssvc_encode_readlinkres(struct svc_rqst *, __be32 *, struct nfsd_readlinkres *);
-int nfssvc_encode_readres(struct svc_rqst *, __be32 *, struct nfsd_readres *);
-int nfssvc_encode_statfsres(struct svc_rqst *, __be32 *, struct nfsd_statfsres *);
-int nfssvc_encode_readdirres(struct svc_rqst *, __be32 *, struct nfsd_readdirres *);
+int nfssvc_decode_void(void *, __be32 *, void *);
+int nfssvc_decode_fhandle(void *, __be32 *, void *);
+int nfssvc_decode_sattrargs(void *, __be32 *, void *);
+int nfssvc_decode_diropargs(void *, __be32 *, void *);
+int nfssvc_decode_readargs(void *, __be32 *, void *);
+int nfssvc_decode_writeargs(void *, __be32 *, void *);
+int nfssvc_decode_createargs(void *, __be32 *, void *);
+int nfssvc_decode_renameargs(void *, __be32 *, void *);
+int nfssvc_decode_readlinkargs(void *, __be32 *, void *);
+int nfssvc_decode_linkargs(void *, __be32 *, void *);
+int nfssvc_decode_symlinkargs(void *, __be32 *, void *);
+int nfssvc_decode_readdirargs(void *, __be32 *, void *);
+int nfssvc_encode_void(void *, __be32 *, void *);
+int nfssvc_encode_attrstat(void *, __be32 *, void *);
+int nfssvc_encode_diropres(void *, __be32 *, void *);
+int nfssvc_encode_readlinkres(void *, __be32 *, void *);
+int nfssvc_encode_readres(void *, __be32 *, void *);
+int nfssvc_encode_statfsres(void *, __be32 *, void *);
+int nfssvc_encode_readdirres(void *, __be32 *, void *);
 
 int nfssvc_encode_entry(void *, const char *name,
 			int namlen, loff_t offset, u64 ino, unsigned int);
 
-int nfssvc_release_fhandle(struct svc_rqst *, __be32 *, struct nfsd_fhandle *);
+int nfssvc_release_fhandle(void *, __be32 *, void *);
 
 /* Helper functions for NFSv2 ACL code */
 __be32 *nfs2svc_encode_fattr(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp, struct kstat *stat);
diff --git a/fs/nfsd/xdr3.h b/fs/nfsd/xdr3.h
index 335e04a..d77a9c9 100644
--- a/fs/nfsd/xdr3.h
+++ b/fs/nfsd/xdr3.h
@@ -269,71 +269,41 @@ union nfsd3_xdrstore {
 
 #define NFS3_SVC_XDRSIZE		sizeof(union nfsd3_xdrstore)
 
-int nfs3svc_decode_fhandle(struct svc_rqst *, __be32 *, struct nfsd_fhandle *);
-int nfs3svc_decode_sattrargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_sattrargs *);
-int nfs3svc_decode_diropargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_diropargs *);
-int nfs3svc_decode_accessargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_accessargs *);
-int nfs3svc_decode_readargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_readargs *);
-int nfs3svc_decode_writeargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_writeargs *);
-int nfs3svc_decode_createargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_createargs *);
-int nfs3svc_decode_mkdirargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_createargs *);
-int nfs3svc_decode_mknodargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_mknodargs *);
-int nfs3svc_decode_renameargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_renameargs *);
-int nfs3svc_decode_readlinkargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_readlinkargs *);
-int nfs3svc_decode_linkargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_linkargs *);
-int nfs3svc_decode_symlinkargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_symlinkargs *);
-int nfs3svc_decode_readdirargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_readdirargs *);
-int nfs3svc_decode_readdirplusargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_readdirargs *);
-int nfs3svc_decode_commitargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_commitargs *);
-int nfs3svc_encode_voidres(struct svc_rqst *, __be32 *, void *);
-int nfs3svc_encode_attrstat(struct svc_rqst *, __be32 *,
-				struct nfsd3_attrstat *);
-int nfs3svc_encode_wccstat(struct svc_rqst *, __be32 *,
-				struct nfsd3_attrstat *);
-int nfs3svc_encode_diropres(struct svc_rqst *, __be32 *,
-				struct nfsd3_diropres *);
-int nfs3svc_encode_accessres(struct svc_rqst *, __be32 *,
-				struct nfsd3_accessres *);
-int nfs3svc_encode_readlinkres(struct svc_rqst *, __be32 *,
-				struct nfsd3_readlinkres *);
-int nfs3svc_encode_readres(struct svc_rqst *, __be32 *, struct nfsd3_readres *);
-int nfs3svc_encode_writeres(struct svc_rqst *, __be32 *, struct nfsd3_writeres *);
-int nfs3svc_encode_createres(struct svc_rqst *, __be32 *,
-				struct nfsd3_diropres *);
-int nfs3svc_encode_renameres(struct svc_rqst *, __be32 *,
-				struct nfsd3_renameres *);
-int nfs3svc_encode_linkres(struct svc_rqst *, __be32 *,
-				struct nfsd3_linkres *);
-int nfs3svc_encode_readdirres(struct svc_rqst *, __be32 *,
-				struct nfsd3_readdirres *);
-int nfs3svc_encode_fsstatres(struct svc_rqst *, __be32 *,
-				struct nfsd3_fsstatres *);
-int nfs3svc_encode_fsinfores(struct svc_rqst *, __be32 *,
-				struct nfsd3_fsinfores *);
-int nfs3svc_encode_pathconfres(struct svc_rqst *, __be32 *,
-				struct nfsd3_pathconfres *);
-int nfs3svc_encode_commitres(struct svc_rqst *, __be32 *,
-				struct nfsd3_commitres *);
+int nfs3svc_decode_fhandle(void *, __be32 *, void *);
+int nfs3svc_decode_sattrargs(void *, __be32 *, void *);
+int nfs3svc_decode_diropargs(void *, __be32 *, void *);
+int nfs3svc_decode_accessargs(void *, __be32 *, void *);
+int nfs3svc_decode_readargs(void *, __be32 *, void *);
+int nfs3svc_decode_writeargs(void *, __be32 *, void *);
+int nfs3svc_decode_createargs(void *, __be32 *, void *);
+int nfs3svc_decode_mkdirargs(void *, __be32 *, void *);
+int nfs3svc_decode_mknodargs(void *, __be32 *, void *);
+int nfs3svc_decode_renameargs(void *, __be32 *, void *);
+int nfs3svc_decode_readlinkargs(void *, __be32 *, void *);
+int nfs3svc_decode_linkargs(void *, __be32 *, void *);
+int nfs3svc_decode_symlinkargs(void *, __be32 *, void *);
+int nfs3svc_decode_readdirargs(void *, __be32 *, void *);
+int nfs3svc_decode_readdirplusargs(void *, __be32 *, void *);
+int nfs3svc_decode_commitargs(void *, __be32 *, void *);
+int nfs3svc_encode_voidres(void *, __be32 *, void *);
+int nfs3svc_encode_attrstat(void *, __be32 *, void *);
+int nfs3svc_encode_wccstat(void *, __be32 *, void *);
+int nfs3svc_encode_diropres(void *, __be32 *, void *);
+int nfs3svc_encode_accessres(void *, __be32 *, void *);
+int nfs3svc_encode_readlinkres(void *, __be32 *, void *);
+int nfs3svc_encode_readres(void *, __be32 *, void *);
+int nfs3svc_encode_writeres(void *, __be32 *, void *);
+int nfs3svc_encode_createres(void *, __be32 *, void *);
+int nfs3svc_encode_renameres(void *, __be32 *, void *);
+int nfs3svc_encode_linkres(void *, __be32 *, void *);
+int nfs3svc_encode_readdirres(void *, __be32 *, void *);
+int nfs3svc_encode_fsstatres(void *, __be32 *, void *);
+int nfs3svc_encode_fsinfores(void *, __be32 *, void *);
+int nfs3svc_encode_pathconfres(void *, __be32 *, void *);
+int nfs3svc_encode_commitres(void *, __be32 *, void *);
 
-int nfs3svc_release_fhandle(struct svc_rqst *, __be32 *,
-				struct nfsd3_attrstat *);
-int nfs3svc_release_fhandle2(struct svc_rqst *, __be32 *,
-				struct nfsd3_fhandle_pair *);
+int nfs3svc_release_fhandle(void *, __be32 *, void *);
+int nfs3svc_release_fhandle2(void *, __be32 *, void *);
 int nfs3svc_encode_entry(void *, const char *name,
 				int namlen, loff_t offset, u64 ino,
 				unsigned int);
diff --git a/fs/nfsd/xdr4.h b/fs/nfsd/xdr4.h
index d955481..a985dc41 100644
--- a/fs/nfsd/xdr4.h
+++ b/fs/nfsd/xdr4.h
@@ -654,11 +654,9 @@ set_change_info(struct nfsd4_change_info *cinfo, struct svc_fh *fhp)
 
 }
 
-int nfs4svc_encode_voidres(struct svc_rqst *, __be32 *, void *);
-int nfs4svc_decode_compoundargs(struct svc_rqst *, __be32 *,
-		struct nfsd4_compoundargs *);
-int nfs4svc_encode_compoundres(struct svc_rqst *, __be32 *,
-		struct nfsd4_compoundres *);
+int nfs4svc_encode_voidres(void *, __be32 *, void *);
+int nfs4svc_decode_compoundargs(void *, __be32 *, void *);
+int nfs4svc_encode_compoundres(void *, __be32 *, void *);
 __be32 nfsd4_check_resp_size(struct nfsd4_compoundres *, u32);
 void nfsd4_encode_operation(struct nfsd4_compoundres *, struct nfsd4_op *);
 void nfsd4_encode_replay(struct xdr_stream *xdr, struct nfsd4_op *op);
@@ -668,26 +666,26 @@ __be32 nfsd4_encode_fattr_to_buf(__be32 **p, int words,
 		u32 *bmval, struct svc_rqst *, int ignore_crossmnt);
 extern __be32 nfsd4_setclientid(struct svc_rqst *rqstp,
 		struct nfsd4_compound_state *,
-		struct nfsd4_setclientid *setclid);
+		void *setclid);
 extern __be32 nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
 		struct nfsd4_compound_state *,
-		struct nfsd4_setclientid_confirm *setclientid_confirm);
+		void *setclientid_confirm);
 extern __be32 nfsd4_exchange_id(struct svc_rqst *rqstp,
-		struct nfsd4_compound_state *, struct nfsd4_exchange_id *);
-extern __be32 nfsd4_backchannel_ctl(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_backchannel_ctl *);
-extern __be32 nfsd4_bind_conn_to_session(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_bind_conn_to_session *);
+		struct nfsd4_compound_state *, void *);
+extern __be32 nfsd4_backchannel_ctl(struct svc_rqst *, struct nfsd4_compound_state *, void *);
+extern __be32 nfsd4_bind_conn_to_session(struct svc_rqst *, struct nfsd4_compound_state *, void *);
 extern __be32 nfsd4_create_session(struct svc_rqst *,
 		struct nfsd4_compound_state *,
-		struct nfsd4_create_session *);
+		void *);
 extern __be32 nfsd4_sequence(struct svc_rqst *,
 		struct nfsd4_compound_state *,
-		struct nfsd4_sequence *);
+		void *);
 extern void nfsd4_sequence_done(struct nfsd4_compoundres *resp);
 extern __be32 nfsd4_destroy_session(struct svc_rqst *,
 		struct nfsd4_compound_state *,
-		struct nfsd4_destroy_session *);
-extern __be32 nfsd4_destroy_clientid(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_destroy_clientid *);
-__be32 nfsd4_reclaim_complete(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_reclaim_complete *);
+		void *);
+extern __be32 nfsd4_destroy_clientid(struct svc_rqst *, struct nfsd4_compound_state *, void *);
+__be32 nfsd4_reclaim_complete(struct svc_rqst *, struct nfsd4_compound_state *, void *);
 extern __be32 nfsd4_process_open1(struct nfsd4_compound_state *,
 		struct nfsd4_open *open, struct nfsd_net *nn);
 extern __be32 nfsd4_process_open2(struct svc_rqst *rqstp,
@@ -696,34 +694,34 @@ extern void nfsd4_cstate_clear_replay(struct nfsd4_compound_state *cstate);
 extern void nfsd4_cleanup_open_state(struct nfsd4_compound_state *cstate,
 		struct nfsd4_open *open);
 extern __be32 nfsd4_open_confirm(struct svc_rqst *rqstp,
-		struct nfsd4_compound_state *, struct nfsd4_open_confirm *oc);
+		struct nfsd4_compound_state *, void *oc);
 extern __be32 nfsd4_close(struct svc_rqst *rqstp,
 		struct nfsd4_compound_state *,
-		struct nfsd4_close *close);
+		void *close);
 extern __be32 nfsd4_open_downgrade(struct svc_rqst *rqstp,
 		struct nfsd4_compound_state *,
-		struct nfsd4_open_downgrade *od);
+		void *od);
 extern __be32 nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
-		struct nfsd4_lock *lock);
+		void *lock);
 extern __be32 nfsd4_lockt(struct svc_rqst *rqstp,
 		struct nfsd4_compound_state *,
-		struct nfsd4_lockt *lockt);
+		void *lockt);
 extern __be32 nfsd4_locku(struct svc_rqst *rqstp,
 		struct nfsd4_compound_state *,
-		struct nfsd4_locku *locku);
+		void *locku);
 extern __be32
 nfsd4_release_lockowner(struct svc_rqst *rqstp,
 		struct nfsd4_compound_state *,
-		struct nfsd4_release_lockowner *rlockowner);
+		void *rlockowner);
 extern int nfsd4_release_compoundargs(void *rq, __be32 *p, void *resp);
 extern __be32 nfsd4_delegreturn(struct svc_rqst *rqstp,
-		struct nfsd4_compound_state *, struct nfsd4_delegreturn *dr);
+		struct nfsd4_compound_state *, void *dr);
 extern __be32 nfsd4_renew(struct svc_rqst *rqstp,
-			  struct nfsd4_compound_state *, clientid_t *clid);
+			  struct nfsd4_compound_state *, void *clid);
 extern __be32 nfsd4_test_stateid(struct svc_rqst *rqstp,
-		struct nfsd4_compound_state *, struct nfsd4_test_stateid *test_stateid);
+		struct nfsd4_compound_state *, void *test_stateid);
 extern __be32 nfsd4_free_stateid(struct svc_rqst *rqstp,
-		struct nfsd4_compound_state *, struct nfsd4_free_stateid *free_stateid);
+		struct nfsd4_compound_state *, void *free_stateid);
 extern void nfsd4_bump_seqid(struct nfsd4_compound_state *, __be32 nfserr);
 
 #endif
diff --git a/fs/nls/nls_base.c b/fs/nls/nls_base.c
index 52ccd34..a166501 100644
--- a/fs/nls/nls_base.c
+++ b/fs/nls/nls_base.c
@@ -234,21 +234,25 @@ EXPORT_SYMBOL(utf16s_to_utf8s);
 
 int __register_nls(struct nls_table *nls, struct module *owner)
 {
-	struct nls_table ** tmp = &tables;
+	struct nls_table *tmp = tables;
 
 	if (nls->next)
 		return -EBUSY;
 
-	nls->owner = owner;
+	pax_open_kernel();
+	const_cast(nls->owner) = owner;
+	pax_close_kernel();
 	spin_lock(&nls_lock);
-	while (*tmp) {
-		if (nls == *tmp) {
+	while (tmp) {
+		if (nls == tmp) {
 			spin_unlock(&nls_lock);
 			return -EBUSY;
 		}
-		tmp = &(*tmp)->next;
+		tmp = tmp->next;
 	}
-	nls->next = tables;
+	pax_open_kernel();
+	const_cast(nls->next) = tables;
+	pax_close_kernel();
 	tables = nls;
 	spin_unlock(&nls_lock);
 	return 0;	
@@ -257,12 +261,14 @@ EXPORT_SYMBOL(__register_nls);
 
 int unregister_nls(struct nls_table * nls)
 {
-	struct nls_table ** tmp = &tables;
+	struct nls_table * const * tmp = &tables;
 
 	spin_lock(&nls_lock);
 	while (*tmp) {
 		if (nls == *tmp) {
-			*tmp = nls->next;
+			pax_open_kernel();
+			*(struct nls_table **)tmp = nls->next;
+			pax_close_kernel();
 			spin_unlock(&nls_lock);
 			return 0;
 		}
@@ -272,7 +278,7 @@ int unregister_nls(struct nls_table * nls)
 	return -EINVAL;
 }
 
-static struct nls_table *find_nls(char *charset)
+static struct nls_table *find_nls(const char *charset)
 {
 	struct nls_table *nls;
 	spin_lock(&nls_lock);
@@ -288,7 +294,7 @@ static struct nls_table *find_nls(char *charset)
 	return nls;
 }
 
-struct nls_table *load_nls(char *charset)
+struct nls_table *load_nls(const char *charset)
 {
 	return try_then_request_module(find_nls(charset), "nls_%s", charset);
 }
diff --git a/fs/nls/nls_cp932.c b/fs/nls/nls_cp932.c
index 67b7398..38622e8 100644
--- a/fs/nls/nls_cp932.c
+++ b/fs/nls/nls_cp932.c
@@ -7834,7 +7834,7 @@ static const unsigned char charset2upper[256] = {
 	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
 };
 
-static int uni2char(const wchar_t uni,
+static int uni2char(wchar_t uni,
 		    unsigned char *out, int boundlen)
 {
 	const unsigned char *uni2charset;
diff --git a/fs/nls/nls_cp936.c b/fs/nls/nls_cp936.c
index c96546c..d5dfe94 100644
--- a/fs/nls/nls_cp936.c
+++ b/fs/nls/nls_cp936.c
@@ -10997,7 +10997,7 @@ static const unsigned char charset2upper[256] = {
 	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
 };
 
-static int uni2char(const wchar_t uni,
+static int uni2char(wchar_t uni,
 			unsigned char *out, int boundlen)
 {
 	const unsigned char *uni2charset;
diff --git a/fs/nls/nls_cp949.c b/fs/nls/nls_cp949.c
index 199171e..709af9a 100644
--- a/fs/nls/nls_cp949.c
+++ b/fs/nls/nls_cp949.c
@@ -13858,7 +13858,7 @@ static const unsigned char charset2upper[256] = {
 	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
 };
 
-static int uni2char(const wchar_t uni,
+static int uni2char(wchar_t uni,
 			unsigned char *out, int boundlen)
 {
 	const unsigned char *uni2charset;
diff --git a/fs/nls/nls_cp950.c b/fs/nls/nls_cp950.c
index 8e14187..d9cec2f 100644
--- a/fs/nls/nls_cp950.c
+++ b/fs/nls/nls_cp950.c
@@ -9394,7 +9394,7 @@ static const unsigned char charset2upper[256] = {
 	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
 };
 
-static int uni2char(const wchar_t uni,
+static int uni2char(wchar_t uni,
 			unsigned char *out, int boundlen)
 {
 	const unsigned char *uni2charset;
diff --git a/fs/nls/nls_euc-jp.c b/fs/nls/nls_euc-jp.c
index 162b3f1..b9121f8 100644
--- a/fs/nls/nls_euc-jp.c
+++ b/fs/nls/nls_euc-jp.c
@@ -406,7 +406,7 @@ static inline int sjisnec2sjisibm(unsigned char *sjisibm,
 	return 2;
 }
 
-static int uni2char(const wchar_t uni,
+static int uni2char(wchar_t uni,
 		    unsigned char *out, int boundlen)
 {
 	int n;
@@ -560,8 +560,10 @@ static int __init init_nls_euc_jp(void)
 	p_nls = load_nls("cp932");
 
 	if (p_nls) {
-		table.charset2upper = p_nls->charset2upper;
-		table.charset2lower = p_nls->charset2lower;
+		pax_open_kernel();
+		const_cast(table.charset2upper) = p_nls->charset2upper;
+		const_cast(table.charset2lower) = p_nls->charset2lower;
+		pax_close_kernel();
 		return register_nls(&table);
 	}
 
diff --git a/fs/nls/nls_koi8-ru.c b/fs/nls/nls_koi8-ru.c
index a80a741..f28c9c9 100644
--- a/fs/nls/nls_koi8-ru.c
+++ b/fs/nls/nls_koi8-ru.c
@@ -13,7 +13,7 @@
 
 static struct nls_table *p_nls;
 
-static int uni2char(const wchar_t uni,
+static int uni2char(wchar_t uni,
 		    unsigned char *out, int boundlen)
 {
 	if (boundlen <= 0)
@@ -62,8 +62,10 @@ static int __init init_nls_koi8_ru(void)
 	p_nls = load_nls("koi8-u");
 
 	if (p_nls) {
-		table.charset2upper = p_nls->charset2upper;
-		table.charset2lower = p_nls->charset2lower;
+		pax_open_kernel();
+		const_cast(table.charset2upper) = p_nls->charset2upper;
+		const_cast(table.charset2lower) = p_nls->charset2lower;
+		pax_close_kernel();
 		return register_nls(&table);
 	}
 
diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
index 8e8e6bc..211eeca 100644
--- a/fs/notify/fanotify/fanotify_user.c
+++ b/fs/notify/fanotify/fanotify_user.c
@@ -216,8 +216,8 @@ static ssize_t copy_event_to_user(struct fsnotify_group *group,
 
 	fd = fanotify_event_metadata.fd;
 	ret = -EFAULT;
-	if (copy_to_user(buf, &fanotify_event_metadata,
-			 fanotify_event_metadata.event_len))
+	if (fanotify_event_metadata.event_len > sizeof fanotify_event_metadata ||
+	    copy_to_user(buf, &fanotify_event_metadata, fanotify_event_metadata.event_len))
 		goto out_close_fd;
 
 #ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
diff --git a/fs/notify/notification.c b/fs/notify/notification.c
index a95d8e0..a91a5fd 100644
--- a/fs/notify/notification.c
+++ b/fs/notify/notification.c
@@ -48,7 +48,7 @@
 #include <linux/fsnotify_backend.h>
 #include "fsnotify.h"
 
-static atomic_t fsnotify_sync_cookie = ATOMIC_INIT(0);
+static atomic_unchecked_t fsnotify_sync_cookie = ATOMIC_INIT(0);
 
 /**
  * fsnotify_get_cookie - return a unique cookie for use in synchronizing events.
@@ -56,7 +56,7 @@ static atomic_t fsnotify_sync_cookie = ATOMIC_INIT(0);
  */
 u32 fsnotify_get_cookie(void)
 {
-	return atomic_inc_return(&fsnotify_sync_cookie);
+	return atomic_inc_return_unchecked(&fsnotify_sync_cookie);
 }
 EXPORT_SYMBOL_GPL(fsnotify_get_cookie);
 
diff --git a/fs/ntfs/dir.c b/fs/ntfs/dir.c
index a186135..31eb358 100644
--- a/fs/ntfs/dir.c
+++ b/fs/ntfs/dir.c
@@ -1310,7 +1310,7 @@ find_next_index_buffer:
 	ia = (INDEX_ALLOCATION*)(kaddr + (ia_pos & ~PAGE_MASK &
 					  ~(s64)(ndir->itype.index.block_size - 1)));
 	/* Bounds checks. */
-	if (unlikely((u8*)ia < kaddr || (u8*)ia > kaddr + PAGE_SIZE)) {
+	if (unlikely(!kaddr || (u8*)ia < kaddr || (u8*)ia > kaddr + PAGE_SIZE)) {
 		ntfs_error(sb, "Out of bounds check failed. Corrupt directory "
 				"inode 0x%lx or driver bug.", vdir->i_ino);
 		goto err_out;
@@ -1517,7 +1517,7 @@ static int ntfs_dir_fsync(struct file *filp, loff_t start, loff_t end,
 	na.type = AT_BITMAP;
 	na.name = I30;
 	na.name_len = 4;
-	bmp_vi = ilookup5(vi->i_sb, vi->i_ino, (test_t)ntfs_test_inode, &na);
+	bmp_vi = ilookup5(vi->i_sb, vi->i_ino, ntfs_test_inode, &na);
 	if (bmp_vi) {
  		write_inode_now(bmp_vi, !datasync);
 		iput(bmp_vi);
diff --git a/fs/ntfs/inode.c b/fs/ntfs/inode.c
index f40972d..a2d48ab 100644
--- a/fs/ntfs/inode.c
+++ b/fs/ntfs/inode.c
@@ -57,8 +57,9 @@
  * NOTE: This function runs with the inode_hash_lock spin lock held so it is not
  * allowed to sleep.
  */
-int ntfs_test_inode(struct inode *vi, ntfs_attr *na)
+int ntfs_test_inode(struct inode *vi, void *_na)
 {
+	ntfs_attr *na = _na;
 	ntfs_inode *ni;
 
 	if (vi->i_ino != na->mft_no)
@@ -101,8 +102,9 @@ int ntfs_test_inode(struct inode *vi, ntfs_attr *na)
  * NOTE: This function runs with the inode->i_lock spin lock held so it is not
  * allowed to sleep. (Hence the GFP_ATOMIC allocation.)
  */
-static int ntfs_init_locked_inode(struct inode *vi, ntfs_attr *na)
+static int ntfs_init_locked_inode(struct inode *vi, void *_na)
 {
+	ntfs_attr *na = _na;
 	ntfs_inode *ni = NTFS_I(vi);
 
 	vi->i_ino = na->mft_no;
@@ -145,7 +147,6 @@ static int ntfs_init_locked_inode(struct inode *vi, ntfs_attr *na)
 	return 0;
 }
 
-typedef int (*set_t)(struct inode *, void *);
 static int ntfs_read_locked_inode(struct inode *vi);
 static int ntfs_read_locked_attr_inode(struct inode *base_vi, struct inode *vi);
 static int ntfs_read_locked_index_inode(struct inode *base_vi,
@@ -178,8 +179,8 @@ struct inode *ntfs_iget(struct super_block *sb, unsigned long mft_no)
 	na.name = NULL;
 	na.name_len = 0;
 
-	vi = iget5_locked(sb, mft_no, (test_t)ntfs_test_inode,
-			(set_t)ntfs_init_locked_inode, &na);
+	vi = iget5_locked(sb, mft_no, ntfs_test_inode,
+			ntfs_init_locked_inode, &na);
 	if (unlikely(!vi))
 		return ERR_PTR(-ENOMEM);
 
@@ -239,8 +240,8 @@ struct inode *ntfs_attr_iget(struct inode *base_vi, ATTR_TYPE type,
 	na.name = name;
 	na.name_len = name_len;
 
-	vi = iget5_locked(base_vi->i_sb, na.mft_no, (test_t)ntfs_test_inode,
-			(set_t)ntfs_init_locked_inode, &na);
+	vi = iget5_locked(base_vi->i_sb, na.mft_no, ntfs_test_inode,
+			ntfs_init_locked_inode, &na);
 	if (unlikely(!vi))
 		return ERR_PTR(-ENOMEM);
 
@@ -294,8 +295,8 @@ struct inode *ntfs_index_iget(struct inode *base_vi, ntfschar *name,
 	na.name = name;
 	na.name_len = name_len;
 
-	vi = iget5_locked(base_vi->i_sb, na.mft_no, (test_t)ntfs_test_inode,
-			(set_t)ntfs_init_locked_inode, &na);
+	vi = iget5_locked(base_vi->i_sb, na.mft_no, ntfs_test_inode,
+			ntfs_init_locked_inode, &na);
 	if (unlikely(!vi))
 		return ERR_PTR(-ENOMEM);
 
diff --git a/fs/ntfs/inode.h b/fs/ntfs/inode.h
index b3c3469..17208ad 100644
--- a/fs/ntfs/inode.h
+++ b/fs/ntfs/inode.h
@@ -267,9 +267,7 @@ typedef struct {
 	ATTR_TYPE type;
 } ntfs_attr;
 
-typedef int (*test_t)(struct inode *, void *);
-
-extern int ntfs_test_inode(struct inode *vi, ntfs_attr *na);
+extern int ntfs_test_inode(struct inode *vi, void *_na);
 
 extern struct inode *ntfs_iget(struct super_block *sb, unsigned long mft_no);
 extern struct inode *ntfs_attr_iget(struct inode *base_vi, ATTR_TYPE type,
diff --git a/fs/ntfs/mft.c b/fs/ntfs/mft.c
index 37b2501..bedd6ed 100644
--- a/fs/ntfs/mft.c
+++ b/fs/ntfs/mft.c
@@ -963,7 +963,7 @@ bool ntfs_may_write_mft_record(ntfs_volume *vol, const unsigned long mft_no,
 		 * dirty code path of the inode dirty code path when writing
 		 * $MFT occurs.
 		 */
-		vi = ilookup5_nowait(sb, mft_no, (test_t)ntfs_test_inode, &na);
+		vi = ilookup5_nowait(sb, mft_no, ntfs_test_inode, &na);
 	}
 	if (vi) {
 		ntfs_debug("Base inode 0x%lx is in icache.", mft_no);
@@ -1024,7 +1024,7 @@ bool ntfs_may_write_mft_record(ntfs_volume *vol, const unsigned long mft_no,
 		vi = igrab(mft_vi);
 		BUG_ON(vi != mft_vi);
 	} else
-		vi = ilookup5_nowait(sb, na.mft_no, (test_t)ntfs_test_inode,
+		vi = ilookup5_nowait(sb, na.mft_no, ntfs_test_inode,
 				&na);
 	if (!vi) {
 		/*
diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c
index ecb4987..c723ded 100644
--- a/fs/ntfs/super.c
+++ b/fs/ntfs/super.c
@@ -688,7 +688,7 @@ static struct buffer_head *read_ntfs_boot_sector(struct super_block *sb,
 		if (!silent)
 			ntfs_error(sb, "Primary boot sector is invalid.");
 	} else if (!silent)
-		ntfs_error(sb, read_err_str, "primary");
+		ntfs_error(sb, read_err_str, "%s", "primary");
 	if (!(NTFS_SB(sb)->on_errors & ON_ERRORS_RECOVER)) {
 		if (bh_primary)
 			brelse(bh_primary);
@@ -704,7 +704,7 @@ static struct buffer_head *read_ntfs_boot_sector(struct super_block *sb,
 			goto hotfix_primary_boot_sector;
 		brelse(bh_backup);
 	} else if (!silent)
-		ntfs_error(sb, read_err_str, "backup");
+		ntfs_error(sb, read_err_str, "%s", "backup");
 	/* Try to read NT3.51- backup boot sector. */
 	if ((bh_backup = sb_bread(sb, nr_blocks >> 1))) {
 		if (is_boot_sector_ntfs(sb, (NTFS_BOOT_SECTOR*)
@@ -715,7 +715,7 @@ static struct buffer_head *read_ntfs_boot_sector(struct super_block *sb,
 					"sector.");
 		brelse(bh_backup);
 	} else if (!silent)
-		ntfs_error(sb, read_err_str, "backup");
+		ntfs_error(sb, read_err_str, "%s", "backup");
 	/* We failed. Cleanup and return. */
 	if (bh_primary)
 		brelse(bh_primary);
@@ -2711,7 +2711,7 @@ static const struct super_operations ntfs_sops = {
  *
  * NOTE: @sb->s_flags contains the mount options flags.
  */
-static int ntfs_fill_super(struct super_block *sb, void *opt, const int silent)
+static int ntfs_fill_super(struct super_block *sb, void *opt, int silent)
 {
 	ntfs_volume *vol;
 	struct buffer_head *bh;
diff --git a/fs/ocfs2/dlm/dlmcommon.h b/fs/ocfs2/dlm/dlmcommon.h
index 004f2cb..238f6fe 100644
--- a/fs/ocfs2/dlm/dlmcommon.h
+++ b/fs/ocfs2/dlm/dlmcommon.h
@@ -151,9 +151,9 @@ struct dlm_ctxt
 	struct list_head mle_hb_events;
 
 	/* these give a really vague idea of the system load */
-	atomic_t mle_tot_count[DLM_MLE_NUM_TYPES];
+	atomic_unchecked_t mle_tot_count[DLM_MLE_NUM_TYPES];
 	atomic_t mle_cur_count[DLM_MLE_NUM_TYPES];
-	atomic_t res_tot_count;
+	atomic_unchecked_t res_tot_count;
 	atomic_t res_cur_count;
 
 	struct dlm_debug_ctxt *dlm_debug_ctxt;
diff --git a/fs/ocfs2/dlm/dlmdebug.c b/fs/ocfs2/dlm/dlmdebug.c
index 8251360..9c7513a 100644
--- a/fs/ocfs2/dlm/dlmdebug.c
+++ b/fs/ocfs2/dlm/dlmdebug.c
@@ -755,10 +755,10 @@ static int debug_state_print(struct dlm_ctxt *dlm, char *buf, int len)
 	out += snprintf(buf + out, len - out,
 			"Lock Resources: %d (%d)\n",
 			atomic_read(&dlm->res_cur_count),
-			atomic_read(&dlm->res_tot_count));
+			atomic_read_unchecked(&dlm->res_tot_count));
 
 	for (i = 0; i < DLM_MLE_NUM_TYPES; ++i)
-		tot_mles += atomic_read(&dlm->mle_tot_count[i]);
+		tot_mles += atomic_read_unchecked(&dlm->mle_tot_count[i]);
 
 	for (i = 0; i < DLM_MLE_NUM_TYPES; ++i)
 		cur_mles += atomic_read(&dlm->mle_cur_count[i]);
@@ -771,19 +771,19 @@ static int debug_state_print(struct dlm_ctxt *dlm, char *buf, int len)
 	out += snprintf(buf + out, len - out,
 			"  Blocking: %d (%d)\n",
 			atomic_read(&dlm->mle_cur_count[DLM_MLE_BLOCK]),
-			atomic_read(&dlm->mle_tot_count[DLM_MLE_BLOCK]));
+			atomic_read_unchecked(&dlm->mle_tot_count[DLM_MLE_BLOCK]));
 
 	/*  Mastery: xxx (xxx) */
 	out += snprintf(buf + out, len - out,
 			"  Mastery: %d (%d)\n",
 			atomic_read(&dlm->mle_cur_count[DLM_MLE_MASTER]),
-			atomic_read(&dlm->mle_tot_count[DLM_MLE_MASTER]));
+			atomic_read_unchecked(&dlm->mle_tot_count[DLM_MLE_MASTER]));
 
 	/*  Migration: xxx (xxx) */
 	out += snprintf(buf + out, len - out,
 			"  Migration: %d (%d)\n",
 			atomic_read(&dlm->mle_cur_count[DLM_MLE_MIGRATION]),
-			atomic_read(&dlm->mle_tot_count[DLM_MLE_MIGRATION]));
+			atomic_read_unchecked(&dlm->mle_tot_count[DLM_MLE_MIGRATION]));
 
 	/* Lists: Dirty=Empty  Purge=InUse  PendingASTs=Empty  ... */
 	out += snprintf(buf + out, len - out,
diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c
index 12e064b..cd40d8e 100644
--- a/fs/ocfs2/dlm/dlmdomain.c
+++ b/fs/ocfs2/dlm/dlmdomain.c
@@ -2057,10 +2057,10 @@ static struct dlm_ctxt *dlm_alloc_ctxt(const char *domain,
 	dlm->reco.new_master = O2NM_INVALID_NODE_NUM;
 	dlm->reco.dead_node = O2NM_INVALID_NODE_NUM;
 
-	atomic_set(&dlm->res_tot_count, 0);
+	atomic_set_unchecked(&dlm->res_tot_count, 0);
 	atomic_set(&dlm->res_cur_count, 0);
 	for (i = 0; i < DLM_MLE_NUM_TYPES; ++i) {
-		atomic_set(&dlm->mle_tot_count[i], 0);
+		atomic_set_unchecked(&dlm->mle_tot_count[i], 0);
 		atomic_set(&dlm->mle_cur_count[i], 0);
 	}
 
diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index 13719d3..593bf65 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -303,7 +303,7 @@ static void dlm_init_mle(struct dlm_master_list_entry *mle,
 		mle->mnamehash = dlm_lockid_hash(name, namelen);
 	}
 
-	atomic_inc(&dlm->mle_tot_count[mle->type]);
+	atomic_inc_unchecked(&dlm->mle_tot_count[mle->type]);
 	atomic_inc(&dlm->mle_cur_count[mle->type]);
 
 	/* copy off the node_map and register hb callbacks on our copy */
@@ -577,7 +577,7 @@ static void dlm_init_lockres(struct dlm_ctxt *dlm,
 
 	kref_init(&res->refs);
 
-	atomic_inc(&dlm->res_tot_count);
+	atomic_inc_unchecked(&dlm->res_tot_count);
 	atomic_inc(&dlm->res_cur_count);
 
 	/* just for consistency */
diff --git a/fs/ocfs2/dlmfs/dlmfs.c b/fs/ocfs2/dlmfs/dlmfs.c
index 47b3b2d..26bae2c 100644
--- a/fs/ocfs2/dlmfs/dlmfs.c
+++ b/fs/ocfs2/dlmfs/dlmfs.c
@@ -88,13 +88,13 @@ struct workqueue_struct *user_dlm_worker;
  */
 #define DLMFS_CAPABILITIES "bast stackglue"
 static int param_set_dlmfs_capabilities(const char *val,
-					struct kernel_param *kp)
+					const struct kernel_param *kp)
 {
 	printk(KERN_ERR "%s: readonly parameter\n", kp->name);
 	return -EINVAL;
 }
 static int param_get_dlmfs_capabilities(char *buffer,
-					struct kernel_param *kp)
+					const struct kernel_param *kp)
 {
 	return strlcpy(buffer, DLMFS_CAPABILITIES,
 		       strlen(DLMFS_CAPABILITIES) + 1);
diff --git a/fs/ocfs2/filecheck.c b/fs/ocfs2/filecheck.c
index 2cabbcf..93edf33 100644
--- a/fs/ocfs2/filecheck.c
+++ b/fs/ocfs2/filecheck.c
@@ -217,7 +217,7 @@ int ocfs2_filecheck_create_sysfs(struct super_block *sb)
 	struct ocfs2_filecheck *fcheck = NULL;
 	struct ocfs2_filecheck_sysfs_entry *entry = NULL;
 	struct attribute **attrs = NULL;
-	struct attribute_group attrgp;
+	attribute_group_no_const attrgp;
 
 	if (!ocfs2_kset)
 		return -ENOMEM;
diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c
index fe0d1f9..7ec8659 100644
--- a/fs/ocfs2/localalloc.c
+++ b/fs/ocfs2/localalloc.c
@@ -1317,7 +1317,7 @@ static int ocfs2_local_alloc_slide_window(struct ocfs2_super *osb,
 		goto bail;
 	}
 
-	atomic_inc(&osb->alloc_stats.moves);
+	atomic_inc_unchecked(&osb->alloc_stats.moves);
 
 bail:
 	if (handle)
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index e63af7d..2a8a83a 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -247,11 +247,11 @@ enum ocfs2_vol_state
 
 struct ocfs2_alloc_stats
 {
-	atomic_t moves;
-	atomic_t local_data;
-	atomic_t bitmap_data;
-	atomic_t bg_allocs;
-	atomic_t bg_extends;
+	atomic_unchecked_t moves;
+	atomic_unchecked_t local_data;
+	atomic_unchecked_t bitmap_data;
+	atomic_unchecked_t bg_allocs;
+	atomic_unchecked_t bg_extends;
 };
 
 enum ocfs2_local_alloc_state
diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
index 2f19aee..26ac57f 100644
--- a/fs/ocfs2/suballoc.c
+++ b/fs/ocfs2/suballoc.c
@@ -851,7 +851,7 @@ static int ocfs2_reserve_suballoc_bits(struct ocfs2_super *osb,
 				mlog_errno(status);
 			goto bail;
 		}
-		atomic_inc(&osb->alloc_stats.bg_extends);
+		atomic_inc_unchecked(&osb->alloc_stats.bg_extends);
 
 		/* You should never ask for this much metadata */
 		BUG_ON(bits_wanted >
@@ -1998,7 +1998,7 @@ int ocfs2_claim_metadata(handle_t *handle,
 		mlog_errno(status);
 		goto bail;
 	}
-	atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
+	atomic_inc_unchecked(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
 
 	*suballoc_loc = res.sr_bg_blkno;
 	*suballoc_bit_start = res.sr_bit_offset;
@@ -2164,7 +2164,7 @@ int ocfs2_claim_new_inode_at_loc(handle_t *handle,
 	trace_ocfs2_claim_new_inode_at_loc((unsigned long long)di_blkno,
 					   res->sr_bits);
 
-	atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
+	atomic_inc_unchecked(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
 
 	BUG_ON(res->sr_bits != 1);
 
@@ -2206,7 +2206,7 @@ int ocfs2_claim_new_inode(handle_t *handle,
 		mlog_errno(status);
 		goto bail;
 	}
-	atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
+	atomic_inc_unchecked(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
 
 	BUG_ON(res.sr_bits != 1);
 
@@ -2310,7 +2310,7 @@ int __ocfs2_claim_clusters(handle_t *handle,
 						      cluster_start,
 						      num_clusters);
 		if (!status)
-			atomic_inc(&osb->alloc_stats.local_data);
+			atomic_inc_unchecked(&osb->alloc_stats.local_data);
 	} else {
 		if (min_clusters > (osb->bitmap_cpg - 1)) {
 			/* The only paths asking for contiguousness
@@ -2336,7 +2336,7 @@ int __ocfs2_claim_clusters(handle_t *handle,
 				ocfs2_desc_bitmap_to_cluster_off(ac->ac_inode,
 								 res.sr_bg_blkno,
 								 res.sr_bit_offset);
-			atomic_inc(&osb->alloc_stats.bitmap_data);
+			atomic_inc_unchecked(&osb->alloc_stats.bitmap_data);
 			*num_clusters = res.sr_bits;
 		}
 	}
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index d7cae33..2d29660 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -306,11 +306,11 @@ static int ocfs2_osb_dump(struct ocfs2_super *osb, char *buf, int len)
 			"%10s => GlobalAllocs: %d  LocalAllocs: %d  "
 			"SubAllocs: %d  LAWinMoves: %d  SAExtends: %d\n",
 			"Stats",
-			atomic_read(&osb->alloc_stats.bitmap_data),
-			atomic_read(&osb->alloc_stats.local_data),
-			atomic_read(&osb->alloc_stats.bg_allocs),
-			atomic_read(&osb->alloc_stats.moves),
-			atomic_read(&osb->alloc_stats.bg_extends));
+			atomic_read_unchecked(&osb->alloc_stats.bitmap_data),
+			atomic_read_unchecked(&osb->alloc_stats.local_data),
+			atomic_read_unchecked(&osb->alloc_stats.bg_allocs),
+			atomic_read_unchecked(&osb->alloc_stats.moves),
+			atomic_read_unchecked(&osb->alloc_stats.bg_extends));
 
 	out += snprintf(buf + out, len - out,
 			"%10s => State: %u  Descriptor: %llu  Size: %u bits  "
@@ -2088,11 +2088,11 @@ static int ocfs2_initialize_super(struct super_block *sb,
 
 	mutex_init(&osb->system_file_mutex);
 
-	atomic_set(&osb->alloc_stats.moves, 0);
-	atomic_set(&osb->alloc_stats.local_data, 0);
-	atomic_set(&osb->alloc_stats.bitmap_data, 0);
-	atomic_set(&osb->alloc_stats.bg_allocs, 0);
-	atomic_set(&osb->alloc_stats.bg_extends, 0);
+	atomic_set_unchecked(&osb->alloc_stats.moves, 0);
+	atomic_set_unchecked(&osb->alloc_stats.local_data, 0);
+	atomic_set_unchecked(&osb->alloc_stats.bitmap_data, 0);
+	atomic_set_unchecked(&osb->alloc_stats.bg_allocs, 0);
+	atomic_set_unchecked(&osb->alloc_stats.bg_extends, 0);
 
 	/* Copy the blockcheck stats from the superblock probe */
 	osb->osb_ecc_stats = *stats;
diff --git a/fs/open.c b/fs/open.c
index 081d3d6..c1b8284a 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -32,6 +32,8 @@
 #include <linux/dnotify.h>
 #include <linux/compat.h>
 
+#define CREATE_TRACE_POINTS
+#include <trace/events/fs.h>
 #include "internal.h"
 
 int do_truncate(struct dentry *dentry, loff_t length, unsigned int time_attrs,
@@ -105,6 +107,8 @@ long vfs_truncate(struct path *path, loff_t length)
 	error = locks_verify_truncate(inode, NULL, length);
 	if (!error)
 		error = security_path_truncate(path);
+	if (!error && !gr_acl_handle_truncate(path->dentry, path->mnt))
+		error = -EACCES;
 	if (!error)
 		error = do_truncate(path->dentry, length, 0, NULL);
 
@@ -189,6 +193,8 @@ static long do_sys_ftruncate(unsigned int fd, loff_t length, int small)
 	error = locks_verify_truncate(inode, f.file, length);
 	if (!error)
 		error = security_path_truncate(&f.file->f_path);
+	if (!error && !gr_acl_handle_truncate(f.file->f_path.dentry, f.file->f_path.mnt))
+		error = -EACCES;
 	if (!error)
 		error = do_truncate(dentry, length, ATTR_MTIME|ATTR_CTIME, f.file);
 	sb_end_write(inode->i_sb);
@@ -398,6 +404,9 @@ retry:
 	if (__mnt_is_readonly(path.mnt))
 		res = -EROFS;
 
+	if (!res && !gr_acl_handle_access(path.dentry, path.mnt, mode))
+		res = -EACCES;
+
 out_path_release:
 	path_put(&path);
 	if (retry_estale(res, lookup_flags)) {
@@ -429,6 +438,8 @@ retry:
 	if (error)
 		goto dput_and_out;
 
+	gr_log_chdir(path.dentry, path.mnt);
+
 	set_fs_pwd(current->fs, &path);
 
 dput_and_out:
@@ -458,6 +469,13 @@ SYSCALL_DEFINE1(fchdir, unsigned int, fd)
 		goto out_putf;
 
 	error = inode_permission(inode, MAY_EXEC | MAY_CHDIR);
+
+	if (!error && !gr_chroot_fchdir(f.file->f_path.dentry, f.file->f_path.mnt))
+		error = -EPERM;
+
+	if (!error)
+		gr_log_chdir(f.file->f_path.dentry, f.file->f_path.mnt);
+
 	if (!error)
 		set_fs_pwd(current->fs, &f.file->f_path);
 out_putf:
@@ -487,7 +505,13 @@ retry:
 	if (error)
 		goto dput_and_out;
 
+	if (gr_handle_chroot_chroot(path.dentry, path.mnt))
+		goto dput_and_out;
+
 	set_fs_root(current->fs, &path);
+
+	gr_handle_chroot_chdir(&path);
+
 	error = 0;
 dput_and_out:
 	path_put(&path);
@@ -511,6 +535,16 @@ static int chmod_common(struct path *path, umode_t mode)
 		return error;
 retry_deleg:
 	inode_lock(inode);
+
+	if (!gr_acl_handle_chmod(path->dentry, path->mnt, &mode)) {
+		error = -EACCES;
+		goto out_unlock;
+	}
+	if (gr_handle_chroot_chmod(path->dentry, path->mnt, mode)) {
+		error = -EACCES;
+		goto out_unlock;
+	}
+
 	error = security_path_chmod(path, mode);
 	if (error)
 		goto out_unlock;
@@ -576,6 +610,9 @@ static int chown_common(struct path *path, uid_t user, gid_t group)
 	uid = make_kuid(current_user_ns(), user);
 	gid = make_kgid(current_user_ns(), group);
 
+	if (!gr_acl_handle_chown(path->dentry, path->mnt))
+		return -EACCES;
+
 retry_deleg:
 	newattrs.ia_valid =  ATTR_CTIME;
 	if (user != (uid_t) -1) {
@@ -1020,6 +1057,7 @@ long do_sys_open(int dfd, const char __user *filename, int flags, umode_t mode)
 		} else {
 			fsnotify_open(f);
 			fd_install(fd, f);
+			trace_do_sys_open(tmp->name, flags, mode);
 		}
 	}
 	putname(tmp);
diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c
index cc514da..2895466 100644
--- a/fs/overlayfs/copy_up.c
+++ b/fs/overlayfs/copy_up.c
@@ -185,7 +185,7 @@ static char *ovl_read_symlink(struct dentry *realdentry)
 	set_fs(get_ds());
 	/* The cast to a user pointer is valid due to the set_fs() */
 	res = inode->i_op->readlink(realdentry,
-				    (char __user *)buf, PAGE_SIZE - 1);
+				    (char __force_user *)buf, PAGE_SIZE - 1);
 	set_fs(old_fs);
 	if (res < 0) {
 		free_page((unsigned long) buf);
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index a4ff5d0..43d5748 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -59,16 +59,37 @@ int ovl_setattr(struct dentry *dentry, struct iattr *attr)
 	if (err)
 		goto out;
 
+	if (attr->ia_valid & ATTR_SIZE) {
+		struct inode *realinode = d_inode(ovl_dentry_real(dentry));
+
+		err = -ETXTBSY;
+		if (atomic_read(&realinode->i_writecount) < 0)
+			goto out_drop_write;
+	}
+
 	err = ovl_copy_up(dentry);
 	if (!err) {
+		struct inode *winode = NULL;
+
 		upperdentry = ovl_dentry_upper(dentry);
 
+		if (attr->ia_valid & ATTR_SIZE) {
+			winode = d_inode(upperdentry);
+			err = get_write_access(winode);
+			if (err)
+				goto out_drop_write;
+		}
+
 		inode_lock(upperdentry->d_inode);
 		err = notify_change(upperdentry, attr, NULL);
 		if (!err)
 			ovl_copyattr(upperdentry->d_inode, dentry->d_inode);
 		inode_unlock(upperdentry->d_inode);
+
+		if (winode)
+			put_write_access(winode);
 	}
+out_drop_write:
 	ovl_drop_write(dentry);
 out:
 	return err;
@@ -347,6 +368,9 @@ struct inode *ovl_d_select_inode(struct dentry *dentry, unsigned file_flags)
 	if (d_is_dir(dentry))
 		return d_backing_inode(dentry);
 
+	if (d_is_dir(dentry))
+		return d_backing_inode(dentry);
+
 	type = ovl_path_real(dentry, &realpath);
 	if (ovl_open_need_copy_up(file_flags, type, realpath.dentry)) {
 		err = ovl_want_write(dentry);
diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
index 791235e..f6aecf4 100644
--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -194,7 +194,7 @@ void ovl_path_lower(struct dentry *dentry, struct path *path)
 {
 	struct ovl_entry *oe = dentry->d_fsdata;
 
-	*path = oe->numlower ? oe->lowerstack[0] : (struct path) { NULL, NULL };
+	*path = oe->numlower ? oe->lowerstack[0] : (struct path) { .dentry = NULL, .mnt = NULL };
 }
 
 int ovl_want_write(struct dentry *dentry)
@@ -942,8 +942,8 @@ static unsigned int ovl_split_lowerdirs(char *str)
 
 static int ovl_fill_super(struct super_block *sb, void *data, int silent)
 {
-	struct path upperpath = { NULL, NULL };
-	struct path workpath = { NULL, NULL };
+	struct path upperpath = { .dentry = NULL, .mnt = NULL };
+	struct path workpath = { .dentry = NULL, .mnt = NULL };
 	struct dentry *root_dentry;
 	struct ovl_entry *oe;
 	struct ovl_fs *ufs;
@@ -1070,11 +1070,13 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
 		if (err < 0)
 			goto out_put_workdir;
 
-		if (!err) {
-			pr_err("overlayfs: upper fs needs to support d_type.\n");
-			err = -EINVAL;
-			goto out_put_workdir;
-		}
+		/*
+		 * We allowed this configuration and don't want to
+		 * break users over kernel upgrade. So warn instead
+		 * of erroring out.
+		 */
+		if (!err)
+			pr_warn("overlayfs: upper fs needs to support d_type.\n");
 	}
 
 	err = -ENOMEM;
diff --git a/fs/pipe.c b/fs/pipe.c
index 0d3f516..91735ad 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -36,7 +36,7 @@ unsigned int pipe_max_size = 1048576;
 /*
  * Minimum pipe size, as required by POSIX
  */
-unsigned int pipe_min_size = PAGE_SIZE;
+unsigned int pipe_min_size __read_only = PAGE_SIZE;
 
 /* Maximum allocatable pages per user. Hard limit is unset by default, soft
  * matches default values.
@@ -61,7 +61,7 @@ unsigned long pipe_user_pages_soft = PIPE_DEF_BUFFERS * INR_OPEN_CUR;
 
 static void pipe_lock_nested(struct pipe_inode_info *pipe, int subclass)
 {
-	if (pipe->files)
+	if (atomic_read(&pipe->files))
 		mutex_lock_nested(&pipe->mutex, subclass);
 }
 
@@ -76,7 +76,7 @@ EXPORT_SYMBOL(pipe_lock);
 
 void pipe_unlock(struct pipe_inode_info *pipe)
 {
-	if (pipe->files)
+	if (atomic_read(&pipe->files))
 		mutex_unlock(&pipe->mutex);
 }
 EXPORT_SYMBOL(pipe_unlock);
@@ -297,9 +297,9 @@ pipe_read(struct kiocb *iocb, struct iov_iter *to)
 		}
 		if (bufs)	/* More to do? */
 			continue;
-		if (!pipe->writers)
+		if (!atomic_read(&pipe->writers))
 			break;
-		if (!pipe->waiting_writers) {
+		if (!atomic_read(&pipe->waiting_writers)) {
 			/* syscall merging: Usually we must not sleep
 			 * if O_NONBLOCK is set, or if we got some data.
 			 * But if a writer sleeps in kernel space, then
@@ -356,7 +356,7 @@ pipe_write(struct kiocb *iocb, struct iov_iter *from)
 
 	__pipe_lock(pipe);
 
-	if (!pipe->readers) {
+	if (!atomic_read(&pipe->readers)) {
 		send_sig(SIGPIPE, current, 0);
 		ret = -EPIPE;
 		goto out;
@@ -391,7 +391,7 @@ pipe_write(struct kiocb *iocb, struct iov_iter *from)
 	for (;;) {
 		int bufs;
 
-		if (!pipe->readers) {
+		if (!atomic_read(&pipe->readers)) {
 			send_sig(SIGPIPE, current, 0);
 			if (!ret)
 				ret = -EPIPE;
@@ -459,9 +459,9 @@ pipe_write(struct kiocb *iocb, struct iov_iter *from)
 			kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
 			do_wakeup = 0;
 		}
-		pipe->waiting_writers++;
+		atomic_inc(&pipe->waiting_writers);
 		pipe_wait(pipe);
-		pipe->waiting_writers--;
+		atomic_dec(&pipe->waiting_writers);
 	}
 out:
 	__pipe_unlock(pipe);
@@ -516,7 +516,7 @@ pipe_poll(struct file *filp, poll_table *wait)
 	mask = 0;
 	if (filp->f_mode & FMODE_READ) {
 		mask = (nrbufs > 0) ? POLLIN | POLLRDNORM : 0;
-		if (!pipe->writers && filp->f_version != pipe->w_counter)
+		if (!atomic_read(&pipe->writers) && filp->f_version != pipe->w_counter)
 			mask |= POLLHUP;
 	}
 
@@ -526,7 +526,7 @@ pipe_poll(struct file *filp, poll_table *wait)
 		 * Most Unices do not set POLLERR for FIFOs but on Linux they
 		 * behave exactly like pipes for poll().
 		 */
-		if (!pipe->readers)
+		if (!atomic_read(&pipe->readers))
 			mask |= POLLERR;
 	}
 
@@ -538,7 +538,7 @@ static void put_pipe_info(struct inode *inode, struct pipe_inode_info *pipe)
 	int kill = 0;
 
 	spin_lock(&inode->i_lock);
-	if (!--pipe->files) {
+	if (atomic_dec_and_test(&pipe->files)) {
 		inode->i_pipe = NULL;
 		kill = 1;
 	}
@@ -555,11 +555,11 @@ pipe_release(struct inode *inode, struct file *file)
 
 	__pipe_lock(pipe);
 	if (file->f_mode & FMODE_READ)
-		pipe->readers--;
+		atomic_dec(&pipe->readers);
 	if (file->f_mode & FMODE_WRITE)
-		pipe->writers--;
+		atomic_dec(&pipe->writers);
 
-	if (pipe->readers || pipe->writers) {
+	if (atomic_read(&pipe->readers) || atomic_read(&pipe->writers)) {
 		wake_up_interruptible_sync_poll(&pipe->wait, POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM | POLLERR | POLLHUP);
 		kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
 		kill_fasync(&pipe->fasync_writers, SIGIO, POLL_OUT);
@@ -655,7 +655,7 @@ void free_pipe_info(struct pipe_inode_info *pipe)
 	kfree(pipe);
 }
 
-static struct vfsmount *pipe_mnt __read_mostly;
+struct vfsmount *pipe_mnt __read_mostly;
 
 /*
  * pipefs_dname() is called from d_path().
@@ -685,8 +685,9 @@ static struct inode * get_pipe_inode(void)
 		goto fail_iput;
 
 	inode->i_pipe = pipe;
-	pipe->files = 2;
-	pipe->readers = pipe->writers = 1;
+	atomic_set(&pipe->files, 2);
+	atomic_set(&pipe->readers, 1);
+	atomic_set(&pipe->writers, 1);
 	inode->i_fop = &pipefifo_fops;
 
 	/*
@@ -868,17 +869,17 @@ static int fifo_open(struct inode *inode, struct file *filp)
 	spin_lock(&inode->i_lock);
 	if (inode->i_pipe) {
 		pipe = inode->i_pipe;
-		pipe->files++;
+		atomic_inc(&pipe->files);
 		spin_unlock(&inode->i_lock);
 	} else {
 		spin_unlock(&inode->i_lock);
 		pipe = alloc_pipe_info();
 		if (!pipe)
 			return -ENOMEM;
-		pipe->files = 1;
+		atomic_set(&pipe->files, 1);
 		spin_lock(&inode->i_lock);
 		if (unlikely(inode->i_pipe)) {
-			inode->i_pipe->files++;
+			atomic_inc(&inode->i_pipe->files);
 			spin_unlock(&inode->i_lock);
 			free_pipe_info(pipe);
 			pipe = inode->i_pipe;
@@ -903,10 +904,10 @@ static int fifo_open(struct inode *inode, struct file *filp)
 	 *  opened, even when there is no process writing the FIFO.
 	 */
 		pipe->r_counter++;
-		if (pipe->readers++ == 0)
+		if (atomic_inc_return(&pipe->readers) == 1)
 			wake_up_partner(pipe);
 
-		if (!is_pipe && !pipe->writers) {
+		if (!is_pipe && !atomic_read(&pipe->writers)) {
 			if ((filp->f_flags & O_NONBLOCK)) {
 				/* suppress POLLHUP until we have
 				 * seen a writer */
@@ -925,14 +926,14 @@ static int fifo_open(struct inode *inode, struct file *filp)
 	 *  errno=ENXIO when there is no process reading the FIFO.
 	 */
 		ret = -ENXIO;
-		if (!is_pipe && (filp->f_flags & O_NONBLOCK) && !pipe->readers)
+		if (!is_pipe && (filp->f_flags & O_NONBLOCK) && !atomic_read(&pipe->readers))
 			goto err;
 
 		pipe->w_counter++;
-		if (!pipe->writers++)
+		if (atomic_inc_return(&pipe->writers) == 1)
 			wake_up_partner(pipe);
 
-		if (!is_pipe && !pipe->readers) {
+		if (!is_pipe && !atomic_read(&pipe->readers)) {
 			if (wait_for_partner(pipe, &pipe->r_counter))
 				goto err_wr;
 		}
@@ -946,11 +947,11 @@ static int fifo_open(struct inode *inode, struct file *filp)
 	 *  the process can at least talk to itself.
 	 */
 
-		pipe->readers++;
-		pipe->writers++;
+		atomic_inc(&pipe->readers);
+		atomic_inc(&pipe->writers);
 		pipe->r_counter++;
 		pipe->w_counter++;
-		if (pipe->readers == 1 || pipe->writers == 1)
+		if (atomic_read(&pipe->readers) == 1 || atomic_read(&pipe->writers) == 1)
 			wake_up_partner(pipe);
 		break;
 
@@ -964,13 +965,13 @@ static int fifo_open(struct inode *inode, struct file *filp)
 	return 0;
 
 err_rd:
-	if (!--pipe->readers)
+	if (atomic_dec_and_test(&pipe->readers))
 		wake_up_interruptible(&pipe->wait);
 	ret = -ERESTARTSYS;
 	goto err;
 
 err_wr:
-	if (!--pipe->writers)
+	if (atomic_dec_and_test(&pipe->writers))
 		wake_up_interruptible(&pipe->wait);
 	ret = -ERESTARTSYS;
 	goto err;
@@ -1047,7 +1048,7 @@ static long pipe_set_size(struct pipe_inode_info *pipe, unsigned long nr_pages)
  * Currently we rely on the pipe array holding a power-of-2 number
  * of pages.
  */
-static inline unsigned int round_pipe_size(unsigned int size)
+static inline unsigned long round_pipe_size(unsigned long size)
 {
 	unsigned long nr_pages;
 
@@ -1095,13 +1096,16 @@ long pipe_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
 
 	switch (cmd) {
 	case F_SETPIPE_SZ: {
-		unsigned int size, nr_pages;
+		unsigned long size, nr_pages;
+
+		ret = -EINVAL;
+		if (arg < pipe_min_size)
+			goto out;
 
 		size = round_pipe_size(arg);
 		nr_pages = size >> PAGE_SHIFT;
 
-		ret = -EINVAL;
-		if (!nr_pages)
+		if (size < pipe_min_size)
 			goto out;
 
 		if (!capable(CAP_SYS_RESOURCE) && size > pipe_max_size) {
diff --git a/fs/posix_acl.c b/fs/posix_acl.c
index 711dd51..afa7a82 100644
--- a/fs/posix_acl.c
+++ b/fs/posix_acl.c
@@ -20,6 +20,7 @@
 #include <linux/xattr.h>
 #include <linux/export.h>
 #include <linux/user_namespace.h>
+#include <linux/grsecurity.h>
 
 struct posix_acl **acl_by_type(struct inode *inode, int type)
 {
@@ -277,7 +278,7 @@ posix_acl_equiv_mode(const struct posix_acl *acl, umode_t *mode_p)
 		}
 	}
         if (mode_p)
-                *mode_p = (*mode_p & ~S_IRWXUGO) | mode;
+                *mode_p = ((*mode_p & ~S_IRWXUGO) | mode) & ~gr_acl_umask();
         return not_equiv;
 }
 EXPORT_SYMBOL(posix_acl_equiv_mode);
@@ -427,7 +428,7 @@ static int posix_acl_create_masq(struct posix_acl *acl, umode_t *mode_p)
 		mode &= (group_obj->e_perm << 3) | ~S_IRWXG;
 	}
 
-	*mode_p = (*mode_p & ~S_IRWXUGO) | mode;
+	*mode_p = ((*mode_p & ~S_IRWXUGO) | mode) & ~gr_acl_umask();
         return not_equiv;
 }
 
@@ -485,6 +486,8 @@ __posix_acl_create(struct posix_acl **acl, gfp_t gfp, umode_t *mode_p)
 	struct posix_acl *clone = posix_acl_clone(*acl, gfp);
 	int err = -ENOMEM;
 	if (clone) {
+		*mode_p &= ~gr_acl_umask();
+
 		err = posix_acl_create_masq(clone, mode_p);
 		if (err < 0) {
 			posix_acl_release(clone);
@@ -657,11 +660,12 @@ struct posix_acl *
 posix_acl_from_xattr(struct user_namespace *user_ns,
 		     const void *value, size_t size)
 {
-	posix_acl_xattr_header *header = (posix_acl_xattr_header *)value;
-	posix_acl_xattr_entry *entry = (posix_acl_xattr_entry *)(header+1), *end;
+	const posix_acl_xattr_header *header = (const posix_acl_xattr_header *)value;
+	const posix_acl_xattr_entry *entry = (const posix_acl_xattr_entry *)(header+1), *end;
 	int count;
 	struct posix_acl *acl;
 	struct posix_acl_entry *acl_e;
+	umode_t umask = gr_acl_umask();
 
 	if (!value)
 		return NULL;
@@ -687,12 +691,18 @@ posix_acl_from_xattr(struct user_namespace *user_ns,
 
 		switch(acl_e->e_tag) {
 			case ACL_USER_OBJ:
+				acl_e->e_perm &= ~((umask & S_IRWXU) >> 6);
+				break;
 			case ACL_GROUP_OBJ:
 			case ACL_MASK:
+				acl_e->e_perm &= ~((umask & S_IRWXG) >> 3);
+				break;
 			case ACL_OTHER:
+				acl_e->e_perm &= ~(umask & S_IRWXO);
 				break;
 
 			case ACL_USER:
+				acl_e->e_perm &= ~((umask & S_IRWXU) >> 6);
 				acl_e->e_uid =
 					make_kuid(user_ns,
 						  le32_to_cpu(entry->e_id));
@@ -700,6 +710,7 @@ posix_acl_from_xattr(struct user_namespace *user_ns,
 					goto fail;
 				break;
 			case ACL_GROUP:
+				acl_e->e_perm &= ~((umask & S_IRWXG) >> 3);
 				acl_e->e_gid =
 					make_kgid(user_ns,
 						  le32_to_cpu(entry->e_id));
@@ -786,39 +797,47 @@ posix_acl_xattr_get(const struct xattr_handler *handler,
 	return error;
 }
 
+int
+set_posix_acl(struct inode *inode, int type, struct posix_acl *acl)
+{
+	if (!IS_POSIXACL(inode))
+		return -EOPNOTSUPP;
+	if (!inode->i_op->set_acl)
+		return -EOPNOTSUPP;
+
+	if (type == ACL_TYPE_DEFAULT && !S_ISDIR(inode->i_mode))
+		return acl ? -EACCES : 0;
+	if (!inode_owner_or_capable(inode))
+		return -EPERM;
+
+	if (acl) {
+		int ret = posix_acl_valid(acl);
+		if (ret)
+			return ret;
+	}
+	return inode->i_op->set_acl(inode, acl, type);
+}
+EXPORT_SYMBOL(set_posix_acl);
+
 static int
 posix_acl_xattr_set(const struct xattr_handler *handler,
-		    struct dentry *dentry, const char *name,
-		    const void *value, size_t size, int flags)
+		    struct dentry *dentry,
+		    const char *name, const void *value,
+		    size_t size, int flags)
 {
 	struct inode *inode = d_backing_inode(dentry);
 	struct posix_acl *acl = NULL;
 	int ret;
 
-	if (!IS_POSIXACL(inode))
-		return -EOPNOTSUPP;
-	if (!inode->i_op->set_acl)
-		return -EOPNOTSUPP;
-
-	if (handler->flags == ACL_TYPE_DEFAULT && !S_ISDIR(inode->i_mode))
-		return value ? -EACCES : 0;
-	if (!inode_owner_or_capable(inode))
-		return -EPERM;
+	if (strcmp(name, "") != 0)
+		return -EINVAL;
 
 	if (value) {
 		acl = posix_acl_from_xattr(&init_user_ns, value, size);
 		if (IS_ERR(acl))
 			return PTR_ERR(acl);
-
-		if (acl) {
-			ret = posix_acl_valid(acl);
-			if (ret)
-				goto out;
-		}
 	}
-
-	ret = inode->i_op->set_acl(inode, acl, handler->flags);
-out:
+	ret = set_posix_acl(inode, handler->flags, acl);
 	posix_acl_release(acl);
 	return ret;
 }
diff --git a/fs/proc/Kconfig b/fs/proc/Kconfig
index 1ade120..a86f1a2 100644
--- a/fs/proc/Kconfig
+++ b/fs/proc/Kconfig
@@ -30,7 +30,7 @@ config PROC_FS
 
 config PROC_KCORE
 	bool "/proc/kcore support" if !ARM
-	depends on PROC_FS && MMU
+	depends on PROC_FS && MMU && !GRKERNSEC_PROC_ADD
 	help
 	  Provides a virtual ELF core file of the live kernel.  This can
 	  be read with gdb and other ELF tools.  No modifications can be
@@ -38,8 +38,8 @@ config PROC_KCORE
 
 config PROC_VMCORE
 	bool "/proc/vmcore support"
-	depends on PROC_FS && CRASH_DUMP
-	default y
+	depends on PROC_FS && CRASH_DUMP && !GRKERNSEC
+	default n
         help
         Exports the dump image of crashed kernel in ELF format.
 
@@ -63,8 +63,8 @@ config PROC_SYSCTL
 	  limited in memory.
 
 config PROC_PAGE_MONITOR
- 	default y
-	depends on PROC_FS && MMU
+ 	default n
+	depends on PROC_FS && MMU && !GRKERNSEC
 	bool "Enable /proc page monitoring" if EXPERT
  	help
 	  Various /proc files exist to monitor process memory utilization:
diff --git a/fs/proc/array.c b/fs/proc/array.c
index b6c00ce..ab37ad1 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -60,6 +60,7 @@
 #include <linux/tty.h>
 #include <linux/string.h>
 #include <linux/mman.h>
+#include <linux/grsecurity.h>
 #include <linux/proc_fs.h>
 #include <linux/ioport.h>
 #include <linux/uaccess.h>
@@ -351,6 +352,21 @@ static void task_cpus_allowed(struct seq_file *m, struct task_struct *task)
 		   cpumask_pr_args(&task->cpus_allowed));
 }
 
+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
+static inline void task_pax(struct seq_file *m, struct task_struct *p)
+{
+	if (p->mm)
+		seq_printf(m, "PaX:\t%c%c%c%c%c\n",
+			   p->mm->pax_flags & MF_PAX_PAGEEXEC ? 'P' : 'p',
+			   p->mm->pax_flags & MF_PAX_EMUTRAMP ? 'E' : 'e',
+			   p->mm->pax_flags & MF_PAX_MPROTECT ? 'M' : 'm',
+			   p->mm->pax_flags & MF_PAX_RANDMMAP ? 'R' : 'r',
+			   p->mm->pax_flags & MF_PAX_SEGMEXEC ? 'S' : 's');
+	else
+		seq_printf(m, "PaX:\t-----\n");
+}
+#endif
+
 int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
 			struct pid *pid, struct task_struct *task)
 {
@@ -369,9 +385,24 @@ int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
 	task_cpus_allowed(m, task);
 	cpuset_task_status_allowed(m, task);
 	task_context_switch_counts(m, task);
+
+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
+	task_pax(m, task);
+#endif
+
+#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC)
+	task_grsec_rbac(m, task);
+#endif
+
 	return 0;
 }
 
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \
+			     (_mm->pax_flags & MF_PAX_RANDMMAP || \
+			      _mm->pax_flags & MF_PAX_SEGMEXEC))
+#endif
+
 static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
 			struct pid *pid, struct task_struct *task, int whole)
 {
@@ -393,6 +424,13 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
 	char tcomm[sizeof(task->comm)];
 	unsigned long flags;
 
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	if (current->exec_id != m->exec_id) {
+		gr_log_badprocpid("stat");
+		return 0;
+	}
+#endif
+
 	state = *get_task_state(task);
 	vsize = eip = esp = 0;
 	permitted = ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS | PTRACE_MODE_NOAUDIT);
@@ -463,6 +501,19 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
 		gtime = task_gtime(task);
 	}
 
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	if (PAX_RAND_FLAGS(mm)) {
+		eip = 0;
+		esp = 0;
+		wchan = 0;
+	}
+#endif
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+	wchan = 0;
+	eip =0;
+	esp =0;
+#endif
+
 	/* scale priority and nice values from timeslices to -20..20 */
 	/* to make it look like a "normal" Unix priority/nice value  */
 	priority = task_prio(task);
@@ -494,9 +545,15 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
 	seq_put_decimal_ull(m, ' ', vsize);
 	seq_put_decimal_ull(m, ' ', mm ? get_mm_rss(mm) : 0);
 	seq_put_decimal_ull(m, ' ', rsslim);
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 1 : (mm ? (permitted ? mm->start_code : 1) : 0));
+	seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 1 : (mm ? (permitted ? mm->end_code : 1) : 0));
+	seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 0 : ((permitted && mm) ? mm->start_stack : 0));
+#else
 	seq_put_decimal_ull(m, ' ', mm ? (permitted ? mm->start_code : 1) : 0);
 	seq_put_decimal_ull(m, ' ', mm ? (permitted ? mm->end_code : 1) : 0);
 	seq_put_decimal_ull(m, ' ', (permitted && mm) ? mm->start_stack : 0);
+#endif
 	seq_put_decimal_ull(m, ' ', esp);
 	seq_put_decimal_ull(m, ' ', eip);
 	/* The signal information here is obsolete.
@@ -530,7 +587,11 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
 	seq_put_decimal_ull(m, ' ', cputime_to_clock_t(gtime));
 	seq_put_decimal_ll(m, ' ', cputime_to_clock_t(cgtime));
 
-	if (mm && permitted) {
+	if (mm && permitted
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+		&& !PAX_RAND_FLAGS(mm)
+#endif
+	   ) {
 		seq_put_decimal_ull(m, ' ', mm->start_data);
 		seq_put_decimal_ull(m, ' ', mm->end_data);
 		seq_put_decimal_ull(m, ' ', mm->start_brk);
@@ -568,8 +629,15 @@ int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns,
 			struct pid *pid, struct task_struct *task)
 {
 	unsigned long size = 0, resident = 0, shared = 0, text = 0, data = 0;
-	struct mm_struct *mm = get_task_mm(task);
+	struct mm_struct *mm;
 
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	if (current->exec_id != m->exec_id) {
+		gr_log_badprocpid("statm");
+		return 0;
+	}
+#endif
+	mm = get_task_mm(task);
 	if (mm) {
 		size = task_statm(mm, &shared, &text, &data, &resident);
 		mmput(mm);
@@ -592,6 +660,21 @@ int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns,
 	return 0;
 }
 
+#ifdef CONFIG_GRKERNSEC_PROC_IPADDR
+int proc_pid_ipaddr(struct seq_file *m, struct pid_namespace *ns, struct pid *pid, struct task_struct *task)
+{
+	unsigned long flags;
+	u32 curr_ip = 0;
+
+	if (lock_task_sighand(task, &flags)) {
+		curr_ip = task->signal->curr_ip;
+		unlock_task_sighand(task, &flags);
+	}
+	seq_printf(m, "%pI4\n", &curr_ip);
+	return 0;
+}
+#endif
+
 #ifdef CONFIG_PROC_CHILDREN
 static struct pid *
 get_children_pid(struct inode *inode, struct pid *pid_prev, loff_t pos)
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 0d163a8..8af6140 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -113,6 +113,14 @@ struct pid_entry {
 	union proc_op op;
 };
 
+struct getdents_callback {
+	struct linux_dirent __user * current_dir;
+	struct linux_dirent __user * previous;
+	struct file * file;
+	int count;
+	int error;
+};
+
 #define NOD(NAME, MODE, IOP, FOP, OP) {			\
 	.name = (NAME),					\
 	.len  = sizeof(NAME) - 1,			\
@@ -224,6 +232,11 @@ static ssize_t proc_pid_cmdline_read(struct file *file, char __user *buf,
 		goto out_mmput;
 	}
 
+	if (gr_acl_handle_procpidmem(tsk)) {
+		rv = 0;
+		goto out_mmput;
+	}
+
 	page = (char *)__get_free_page(GFP_TEMPORARY);
 	if (!page) {
 		rv = -ENOMEM;
@@ -400,12 +413,28 @@ static const struct file_operations proc_pid_cmdline_ops = {
 	.llseek	= generic_file_llseek,
 };
 
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \
+			     (_mm->pax_flags & MF_PAX_RANDMMAP || \
+			      _mm->pax_flags & MF_PAX_SEGMEXEC))
+#endif
+
 static int proc_pid_auxv(struct seq_file *m, struct pid_namespace *ns,
 			 struct pid *pid, struct task_struct *task)
 {
 	struct mm_struct *mm = mm_access(task, PTRACE_MODE_READ_FSCREDS);
 	if (mm && !IS_ERR(mm)) {
 		unsigned int nwords = 0;
+
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+		/* allow if we're currently ptracing this task */
+		if (PAX_RAND_FLAGS(mm) &&
+		    (!(task->ptrace & PT_PTRACED) || (task->parent != current))) {
+			mmput(mm);
+			return 0;
+		}
+#endif
+
 		do {
 			nwords += 2;
 		} while (mm->saved_auxv[nwords - 2] != 0); /* AT_NULL */
@@ -417,7 +446,7 @@ static int proc_pid_auxv(struct seq_file *m, struct pid_namespace *ns,
 }
 
 
-#ifdef CONFIG_KALLSYMS
+#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
 /*
  * Provides a wchan file via kallsyms in a proper one-value-per-file format.
  * Returns the resolved symbol.  If that fails, simply return the address.
@@ -430,8 +459,8 @@ static int proc_pid_wchan(struct seq_file *m, struct pid_namespace *ns,
 
 	wchan = get_wchan(task);
 
-	if (wchan && ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS)
-			&& !lookup_symbol_name(wchan, symname))
+	if (wchan && !lookup_symbol_name(wchan, symname)
+	    		&& ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS))
 		seq_printf(m, "%s", symname);
 	else
 		seq_putc(m, '0');
@@ -457,7 +486,7 @@ static void unlock_trace(struct task_struct *task)
 	mutex_unlock(&task->signal->cred_guard_mutex);
 }
 
-#ifdef CONFIG_STACKTRACE
+#if defined(CONFIG_STACKTRACE) && !defined(CONFIG_GRKERNSEC_HIDESYM)
 
 #define MAX_STACK_TRACE_DEPTH	64
 
@@ -655,7 +684,7 @@ static int proc_pid_limits(struct seq_file *m, struct pid_namespace *ns,
 	return 0;
 }
 
-#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
+#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
 static int proc_pid_syscall(struct seq_file *m, struct pid_namespace *ns,
 			    struct pid *pid, struct task_struct *task)
 {
@@ -688,7 +717,7 @@ static int proc_pid_syscall(struct seq_file *m, struct pid_namespace *ns,
 /************************************************************************/
 
 /* permission checks */
-static int proc_fd_access_allowed(struct inode *inode)
+static int proc_fd_access_allowed(struct inode *inode, unsigned int log)
 {
 	struct task_struct *task;
 	int allowed = 0;
@@ -698,7 +727,10 @@ static int proc_fd_access_allowed(struct inode *inode)
 	 */
 	task = get_proc_task(inode);
 	if (task) {
-		allowed = ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS);
+		if (log)
+			allowed = ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS);
+		else
+			allowed = ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS | PTRACE_MODE_NOAUDIT);
 		put_task_struct(task);
 	}
 	return allowed;
@@ -729,6 +761,30 @@ static bool has_pid_permissions(struct pid_namespace *pid,
 				 struct task_struct *task,
 				 int hide_pid_min)
 {
+	if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
+		return false;
+
+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+	rcu_read_lock();
+	{
+		const struct cred *tmpcred = current_cred();
+		const struct cred *cred = __task_cred(task);
+
+		if (uid_eq(tmpcred->uid, GLOBAL_ROOT_UID) || uid_eq(tmpcred->uid, cred->uid)
+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
+			|| in_group_p(grsec_proc_gid)
+#endif
+		) {
+			rcu_read_unlock();
+			return true;
+		}
+	}
+	rcu_read_unlock();
+
+	if (!pid->hide_pid)
+		return ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS | PTRACE_MODE_NOAUDIT);
+#endif
+
 	if (pid->hide_pid < hide_pid_min)
 		return true;
 	if (in_group_p(pid->pid_gid))
@@ -750,7 +806,11 @@ static int proc_pid_permission(struct inode *inode, int mask)
 	put_task_struct(task);
 
 	if (!has_perms) {
+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+		{
+#else
 		if (pid->hide_pid == 2) {
+#endif
 			/*
 			 * Let's make getdents(), stat(), and open()
 			 * consistent with each other.  If a process
@@ -804,13 +864,24 @@ static const struct file_operations proc_single_file_operations = {
 };
 
 
-struct mm_struct *proc_mem_open(struct inode *inode, unsigned int mode)
+struct mm_struct *proc_mem_open(struct inode *inode, unsigned int mode, u64 *ptracer_exec_id)
 {
 	struct task_struct *task = get_proc_task(inode);
 	struct mm_struct *mm = ERR_PTR(-ESRCH);
 
+	if (ptracer_exec_id)
+		*ptracer_exec_id = 0;
+
 	if (task) {
 		mm = mm_access(task, mode | PTRACE_MODE_FSCREDS);
+		if (!IS_ERR_OR_NULL(mm) && gr_acl_handle_procpidmem(task)) {
+			mmput(mm);
+			mm = ERR_PTR(-EPERM);
+		}
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+		if (ptracer_exec_id)
+			current_is_ptracer(task, ptracer_exec_id);
+#endif
 		put_task_struct(task);
 
 		if (!IS_ERR_OR_NULL(mm)) {
@@ -826,12 +897,17 @@ struct mm_struct *proc_mem_open(struct inode *inode, unsigned int mode)
 
 static int __mem_open(struct inode *inode, struct file *file, unsigned int mode)
 {
-	struct mm_struct *mm = proc_mem_open(inode, mode);
+	struct mm_struct *mm = proc_mem_open(inode, mode, NULL);
 
 	if (IS_ERR(mm))
 		return PTR_ERR(mm);
 
 	file->private_data = mm;
+
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	file->f_version = current->exec_id;
+#endif
+
 	return 0;
 }
 
@@ -853,6 +929,26 @@ static ssize_t mem_rw(struct file *file, char __user *buf,
 	ssize_t copied;
 	char *page;
 
+#ifdef CONFIG_GRKERNSEC
+	struct task_struct *task = get_proc_task(file_inode(file));
+	bool is_by_ptracer = false;
+
+	if (task) {
+		is_by_ptracer = current_is_ptracer(task, NULL);
+		put_task_struct(task);
+	}
+
+	if (write && !is_by_ptracer)
+		return -EPERM;
+
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	if (file->f_version != current->exec_id && !is_by_ptracer) {
+		gr_log_badprocpid("mem");
+		return 0;
+	}
+#endif
+#endif
+
 	if (!mm)
 		return 0;
 
@@ -865,7 +961,7 @@ static ssize_t mem_rw(struct file *file, char __user *buf,
 		goto free;
 
 	while (count > 0) {
-		int this_len = min_t(int, count, PAGE_SIZE);
+		ssize_t this_len = min_t(ssize_t, count, PAGE_SIZE);
 
 		if (write && copy_from_user(page, buf, this_len)) {
 			copied = -EFAULT;
@@ -959,6 +1055,13 @@ static ssize_t environ_read(struct file *file, char __user *buf,
 	if (!mm || !mm->env_end)
 		return 0;
 
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	if (file->f_version != current->exec_id) {
+		gr_log_badprocpid("environ");
+		return 0;
+	}
+#endif
+
 	page = (char *)__get_free_page(GFP_TEMPORARY);
 	if (!page)
 		return -ENOMEM;
@@ -972,9 +1075,12 @@ static ssize_t environ_read(struct file *file, char __user *buf,
 	env_end = mm->env_end;
 	up_read(&mm->mmap_sem);
 
+	if (!env_end)
+		goto free;
+
 	while (count > 0) {
 		size_t this_len, max_len;
-		int retval;
+		ssize_t retval;
 
 		if (src >= (env_end - env_start))
 			break;
@@ -1584,7 +1690,7 @@ static const char *proc_pid_get_link(struct dentry *dentry,
 		return ERR_PTR(-ECHILD);
 
 	/* Are we allowed to snoop on the tasks file descriptors? */
-	if (!proc_fd_access_allowed(inode))
+	if (!proc_fd_access_allowed(inode, 0))
 		goto out;
 
 	error = PROC_I(inode)->op.proc_get_link(dentry, &path);
@@ -1628,8 +1734,18 @@ static int proc_pid_readlink(struct dentry * dentry, char __user * buffer, int b
 	struct path path;
 
 	/* Are we allowed to snoop on the tasks file descriptors? */
-	if (!proc_fd_access_allowed(inode))
-		goto out;
+	/* logging this is needed for learning on chromium to work properly,
+	   but we don't want to flood the logs from 'ps' which does a readlink
+	   on /proc/fd/2 of tasks in the listing, nor do we want 'ps' to learn
+	   CAP_SYS_PTRACE as it's not necessary for its basic functionality
+	 */
+	if (dentry->d_name.name[0] == '2' && dentry->d_name.name[1] == '\0') {
+		if (!proc_fd_access_allowed(inode,0))
+			goto out;
+	} else {
+		if (!proc_fd_access_allowed(inode,1))
+			goto out;
+	}
 
 	error = PROC_I(inode)->op.proc_get_link(dentry, &path);
 	if (error)
@@ -1679,7 +1795,11 @@ struct inode *proc_pid_make_inode(struct super_block * sb, struct task_struct *t
 		rcu_read_lock();
 		cred = __task_cred(task);
 		inode->i_uid = cred->euid;
+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
+		inode->i_gid = grsec_proc_gid;
+#else
 		inode->i_gid = cred->egid;
+#endif
 		rcu_read_unlock();
 	}
 	security_task_to_inode(task, inode);
@@ -1715,10 +1835,19 @@ int pid_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
 			return -ENOENT;
 		}
 		if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) ||
+#ifdef CONFIG_GRKERNSEC_PROC_USER
+		    (inode->i_mode == (S_IFDIR|S_IRUSR|S_IXUSR)) ||
+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+		    (inode->i_mode == (S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP)) ||
+#endif
 		    task_dumpable(task)) {
 			cred = __task_cred(task);
 			stat->uid = cred->euid;
+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
+			stat->gid = grsec_proc_gid;
+#else
 			stat->gid = cred->egid;
+#endif
 		}
 	}
 	rcu_read_unlock();
@@ -1756,11 +1885,20 @@ int pid_revalidate(struct dentry *dentry, unsigned int flags)
 
 	if (task) {
 		if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) ||
+#ifdef CONFIG_GRKERNSEC_PROC_USER
+		    (inode->i_mode == (S_IFDIR|S_IRUSR|S_IXUSR)) ||
+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+		    (inode->i_mode == (S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP)) ||
+#endif
 		    task_dumpable(task)) {
 			rcu_read_lock();
 			cred = __task_cred(task);
 			inode->i_uid = cred->euid;
+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
+			inode->i_gid = grsec_proc_gid;
+#else
 			inode->i_gid = cred->egid;
+#endif
 			rcu_read_unlock();
 		} else {
 			inode->i_uid = GLOBAL_ROOT_UID;
@@ -2369,6 +2507,9 @@ static struct dentry *proc_pident_lookup(struct inode *dir,
 	if (!task)
 		goto out_no_task;
 
+	if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
+		goto out;
+
 	/*
 	 * Yes, it does not scale. And it should not. Don't add
 	 * new entries into /proc/<tgid>/ without very good reasons.
@@ -2399,6 +2540,9 @@ static int proc_pident_readdir(struct file *file, struct dir_context *ctx,
 	if (!task)
 		return -ENOENT;
 
+	if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
+		goto out;
+
 	if (!dir_emit_dots(file, ctx))
 		goto out;
 
@@ -2811,7 +2955,9 @@ static const struct inode_operations proc_task_inode_operations;
 static const struct pid_entry tgid_base_stuff[] = {
 	DIR("task",       S_IRUGO|S_IXUGO, proc_task_inode_operations, proc_task_operations),
 	DIR("fd",         S_IRUSR|S_IXUSR, proc_fd_inode_operations, proc_fd_operations),
+#ifndef CONFIG_GRKERNSEC
 	DIR("map_files",  S_IRUSR|S_IXUSR, proc_map_files_inode_operations, proc_map_files_operations),
+#endif
 	DIR("fdinfo",     S_IRUSR|S_IXUSR, proc_fdinfo_inode_operations, proc_fdinfo_operations),
 	DIR("ns",	  S_IRUSR|S_IXUGO, proc_ns_dir_inode_operations, proc_ns_dir_operations),
 #ifdef CONFIG_NET
@@ -2829,7 +2975,7 @@ static const struct pid_entry tgid_base_stuff[] = {
 	REG("autogroup",  S_IRUGO|S_IWUSR, proc_pid_sched_autogroup_operations),
 #endif
 	REG("comm",      S_IRUGO|S_IWUSR, proc_pid_set_comm_operations),
-#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
+#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
 	ONE("syscall",    S_IRUSR, proc_pid_syscall),
 #endif
 	REG("cmdline",    S_IRUGO, proc_pid_cmdline_ops),
@@ -2854,10 +3000,10 @@ static const struct pid_entry tgid_base_stuff[] = {
 #ifdef CONFIG_SECURITY
 	DIR("attr",       S_IRUGO|S_IXUGO, proc_attr_dir_inode_operations, proc_attr_dir_operations),
 #endif
-#ifdef CONFIG_KALLSYMS
+#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
 	ONE("wchan",      S_IRUGO, proc_pid_wchan),
 #endif
-#ifdef CONFIG_STACKTRACE
+#if defined(CONFIG_STACKTRACE) && !defined(CONFIG_GRKERNSEC_HIDESYM)
 	ONE("stack",      S_IRUSR, proc_pid_stack),
 #endif
 #ifdef CONFIG_SCHED_INFO
@@ -2891,6 +3037,9 @@ static const struct pid_entry tgid_base_stuff[] = {
 #ifdef CONFIG_HARDWALL
 	ONE("hardwall",   S_IRUGO, proc_pid_hardwall),
 #endif
+#ifdef CONFIG_GRKERNSEC_PROC_IPADDR
+	ONE("ipaddr",     S_IRUSR, proc_pid_ipaddr),
+#endif
 #ifdef CONFIG_USER_NS
 	REG("uid_map",    S_IRUGO|S_IWUSR, proc_uid_map_operations),
 	REG("gid_map",    S_IRUGO|S_IWUSR, proc_gid_map_operations),
@@ -3024,7 +3173,14 @@ static int proc_pid_instantiate(struct inode *dir,
 	if (!inode)
 		goto out;
 
+#ifdef CONFIG_GRKERNSEC_PROC_USER
+	inode->i_mode = S_IFDIR|S_IRUSR|S_IXUSR;
+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+	inode->i_gid = grsec_proc_gid;
+	inode->i_mode = S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP;
+#else
 	inode->i_mode = S_IFDIR|S_IRUGO|S_IXUGO;
+#endif
 	inode->i_op = &proc_tgid_base_inode_operations;
 	inode->i_fop = &proc_tgid_base_operations;
 	inode->i_flags|=S_IMMUTABLE;
@@ -3062,7 +3218,11 @@ struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, unsign
 	if (!task)
 		goto out;
 
+	if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
+		goto out_put_task;
+
 	result = proc_pid_instantiate(dir, dentry, task, NULL);
+out_put_task:
 	put_task_struct(task);
 out:
 	return ERR_PTR(result);
@@ -3176,7 +3336,7 @@ static const struct pid_entry tid_base_stuff[] = {
 	REG("sched",     S_IRUGO|S_IWUSR, proc_pid_sched_operations),
 #endif
 	REG("comm",      S_IRUGO|S_IWUSR, proc_pid_set_comm_operations),
-#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
+#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
 	ONE("syscall",   S_IRUSR, proc_pid_syscall),
 #endif
 	REG("cmdline",   S_IRUGO, proc_pid_cmdline_ops),
@@ -3203,10 +3363,10 @@ static const struct pid_entry tid_base_stuff[] = {
 #ifdef CONFIG_SECURITY
 	DIR("attr",      S_IRUGO|S_IXUGO, proc_attr_dir_inode_operations, proc_attr_dir_operations),
 #endif
-#ifdef CONFIG_KALLSYMS
+#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
 	ONE("wchan",     S_IRUGO, proc_pid_wchan),
 #endif
-#ifdef CONFIG_STACKTRACE
+#if defined(CONFIG_STACKTRACE) && !defined(CONFIG_GRKERNSEC_HIDESYM)
 	ONE("stack",      S_IRUSR, proc_pid_stack),
 #endif
 #ifdef CONFIG_SCHED_INFO
diff --git a/fs/proc/cmdline.c b/fs/proc/cmdline.c
index cbd82df..c0407d2 100644
--- a/fs/proc/cmdline.c
+++ b/fs/proc/cmdline.c
@@ -23,7 +23,11 @@ static const struct file_operations cmdline_proc_fops = {
 
 static int __init proc_cmdline_init(void)
 {
+#ifdef CONFIG_GRKERNSEC_PROC_ADD
+	proc_create_grsec("cmdline", 0, NULL, &cmdline_proc_fops);
+#else
 	proc_create("cmdline", 0, NULL, &cmdline_proc_fops);
+#endif
 	return 0;
 }
 fs_initcall(proc_cmdline_init);
diff --git a/fs/proc/devices.c b/fs/proc/devices.c
index 50493ed..248166b 100644
--- a/fs/proc/devices.c
+++ b/fs/proc/devices.c
@@ -64,7 +64,11 @@ static const struct file_operations proc_devinfo_operations = {
 
 static int __init proc_devices_init(void)
 {
+#ifdef CONFIG_GRKERNSEC_PROC_ADD
+	proc_create_grsec("devices", 0, NULL, &proc_devinfo_operations);
+#else
 	proc_create("devices", 0, NULL, &proc_devinfo_operations);
+#endif
 	return 0;
 }
 fs_initcall(proc_devices_init);
diff --git a/fs/proc/fd.c b/fs/proc/fd.c
index 56afa5e..cb7934e 100644
--- a/fs/proc/fd.c
+++ b/fs/proc/fd.c
@@ -27,7 +27,8 @@ static int seq_show(struct seq_file *m, void *v)
 	if (!task)
 		return -ENOENT;
 
-	files = get_files_struct(task);
+	if (!gr_acl_handle_procpidmem(task))
+		files = get_files_struct(task);
 	put_task_struct(task);
 
 	if (files) {
@@ -296,13 +297,15 @@ int proc_fd_permission(struct inode *inode, int mask)
 	int rv;
 
 	rv = generic_permission(inode, mask);
-	if (rv == 0)
-		return rv;
 
 	rcu_read_lock();
 	p = pid_task(proc_pid(inode), PIDTYPE_PID);
-	if (p && same_thread_group(p, current))
-		rv = 0;
+	if (p) {
+		if (same_thread_group(p, current))
+			rv = 0;
+		if (gr_acl_handle_procpidmem(p))
+			rv = -EACCES;
+	}
 	rcu_read_unlock();
 
 	return rv;
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index ff3ffc7..1aec0a3 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -22,6 +22,7 @@
 #include <linux/bitops.h>
 #include <linux/spinlock.h>
 #include <linux/completion.h>
+#include <linux/grsecurity.h>
 #include <asm/uaccess.h>
 
 #include "internal.h"
@@ -253,6 +254,15 @@ struct dentry *proc_lookup(struct inode *dir, struct dentry *dentry,
 	return proc_lookup_de(PDE(dir), dir, dentry);
 }
 
+struct dentry *proc_lookup_restrict(struct inode *dir, struct dentry *dentry,
+		unsigned int flags)
+{
+	if (gr_proc_is_restricted())
+		return ERR_PTR(-EACCES);
+
+	return proc_lookup_de(PDE(dir), dir, dentry);
+}
+
 /*
  * This returns non-zero if at EOF, so that the /proc
  * root directory can use this and check if it should
@@ -310,6 +320,16 @@ int proc_readdir(struct file *file, struct dir_context *ctx)
 	return proc_readdir_de(PDE(inode), file, ctx);
 }
 
+int proc_readdir_restrict(struct file *file, struct dir_context *ctx)
+{
+	struct inode *inode = file_inode(file);
+
+	if (gr_proc_is_restricted())
+		return -EACCES;
+
+	return proc_readdir_de(PDE(inode), file, ctx);
+}
+
 /*
  * These are the generic /proc directory operations. They
  * use the in-memory "struct proc_dir_entry" tree to parse
@@ -321,6 +341,12 @@ static const struct file_operations proc_dir_operations = {
 	.iterate		= proc_readdir,
 };
 
+static const struct file_operations proc_dir_restricted_operations = {
+	.llseek			= generic_file_llseek,
+	.read			= generic_read_dir,
+	.iterate		= proc_readdir_restrict,
+};
+
 /*
  * proc directories can do almost nothing..
  */
@@ -330,6 +356,12 @@ static const struct inode_operations proc_dir_inode_operations = {
 	.setattr	= proc_notify_change,
 };
 
+static const struct inode_operations proc_dir_restricted_inode_operations = {
+	.lookup		= proc_lookup_restrict,
+	.getattr	= proc_getattr,
+	.setattr	= proc_notify_change,
+};
+
 static int proc_register(struct proc_dir_entry * dir, struct proc_dir_entry * dp)
 {
 	int ret;
@@ -445,6 +477,31 @@ struct proc_dir_entry *proc_mkdir_data(const char *name, umode_t mode,
 }
 EXPORT_SYMBOL_GPL(proc_mkdir_data);
 
+struct proc_dir_entry *proc_mkdir_data_restrict(const char *name, umode_t mode,
+		struct proc_dir_entry *parent, void *data)
+{
+	struct proc_dir_entry *ent;
+
+	if (mode == 0)
+		mode = S_IRUGO | S_IXUGO;
+
+	ent = __proc_create(&parent, name, S_IFDIR | mode, 2);
+	if (ent) {
+		ent->data = data;
+		ent->restricted = 1;
+		ent->proc_fops = &proc_dir_restricted_operations;
+		ent->proc_iops = &proc_dir_restricted_inode_operations;
+		parent->nlink++;
+		if (proc_register(parent, ent) < 0) {
+			kfree(ent);
+			parent->nlink--;
+			ent = NULL;
+		}
+	}
+	return ent;
+}
+EXPORT_SYMBOL_GPL(proc_mkdir_data_restrict);
+
 struct proc_dir_entry *proc_mkdir_mode(const char *name, umode_t mode,
 				       struct proc_dir_entry *parent)
 {
@@ -459,6 +516,13 @@ struct proc_dir_entry *proc_mkdir(const char *name,
 }
 EXPORT_SYMBOL(proc_mkdir);
 
+struct proc_dir_entry *proc_mkdir_restrict(const char *name,
+		struct proc_dir_entry *parent)
+{
+	return proc_mkdir_data_restrict(name, 0, parent, NULL);
+}
+EXPORT_SYMBOL(proc_mkdir_restrict);
+
 struct proc_dir_entry *proc_create_mount_point(const char *name)
 {
 	umode_t mode = S_IFDIR | S_IRUGO | S_IXUGO;
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index 42305dd..968caba 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -23,11 +23,17 @@
 #include <linux/slab.h>
 #include <linux/mount.h>
 #include <linux/magic.h>
+#include <linux/grsecurity.h>
 
 #include <asm/uaccess.h>
 
 #include "internal.h"
 
+#ifdef CONFIG_PROC_SYSCTL
+extern const struct inode_operations proc_sys_inode_operations;
+extern const struct inode_operations proc_sys_dir_operations;
+#endif
+
 static void proc_evict_inode(struct inode *inode)
 {
 	struct proc_dir_entry *de;
@@ -48,6 +54,13 @@ static void proc_evict_inode(struct inode *inode)
 		RCU_INIT_POINTER(PROC_I(inode)->sysctl, NULL);
 		sysctl_head_put(head);
 	}
+
+#ifdef CONFIG_PROC_SYSCTL
+	if (inode->i_op == &proc_sys_inode_operations ||
+	    inode->i_op == &proc_sys_dir_operations)
+		gr_handle_delete(inode->i_ino, inode->i_sb->s_dev);
+#endif
+
 }
 
 static struct kmem_cache * proc_inode_cachep;
@@ -431,7 +444,11 @@ struct inode *proc_get_inode(struct super_block *sb, struct proc_dir_entry *de)
 		if (de->mode) {
 			inode->i_mode = de->mode;
 			inode->i_uid = de->uid;
+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
+			inode->i_gid = grsec_proc_gid;
+#else
 			inode->i_gid = de->gid;
+#endif
 		}
 		if (de->size)
 			inode->i_size = de->size;
diff --git a/fs/proc/internal.h b/fs/proc/internal.h
index aa27810..d1e37fa 100644
--- a/fs/proc/internal.h
+++ b/fs/proc/internal.h
@@ -47,9 +47,10 @@ struct proc_dir_entry {
 	struct completion *pde_unload_completion;
 	struct list_head pde_openers;	/* who did ->open, but not ->release */
 	spinlock_t pde_unload_lock; /* proc_fops checks and pde_users bumps */
+	u8 restricted; /* a directory in /proc/net that should be restricted via GRKERNSEC_PROC */
 	u8 namelen;
 	char name[];
-};
+} __randomize_layout;
 
 union proc_op {
 	int (*proc_get_link)(struct dentry *, struct path *);
@@ -67,7 +68,7 @@ struct proc_inode {
 	struct ctl_table *sysctl_entry;
 	const struct proc_ns_operations *ns_ops;
 	struct inode vfs_inode;
-};
+} __randomize_layout;
 
 /*
  * General functions
@@ -155,6 +156,10 @@ extern int proc_pid_status(struct seq_file *, struct pid_namespace *,
 			   struct pid *, struct task_struct *);
 extern int proc_pid_statm(struct seq_file *, struct pid_namespace *,
 			  struct pid *, struct task_struct *);
+#ifdef CONFIG_GRKERNSEC_PROC_IPADDR
+extern int proc_pid_ipaddr(struct seq_file *, struct pid_namespace *,
+			  struct pid *, struct task_struct *);
+#endif
 
 /*
  * base.c
@@ -179,9 +184,11 @@ extern bool proc_fill_cache(struct file *, struct dir_context *, const char *, i
  * generic.c
  */
 extern struct dentry *proc_lookup(struct inode *, struct dentry *, unsigned int);
+extern struct dentry *proc_lookup_restrict(struct inode *, struct dentry *, unsigned int);
 extern struct dentry *proc_lookup_de(struct proc_dir_entry *, struct inode *,
 				     struct dentry *);
 extern int proc_readdir(struct file *, struct dir_context *);
+extern int proc_readdir_restrict(struct file *, struct dir_context *);
 extern int proc_readdir_de(struct proc_dir_entry *, struct file *, struct dir_context *);
 
 static inline struct proc_dir_entry *pde_get(struct proc_dir_entry *pde)
@@ -285,9 +292,12 @@ struct proc_maps_private {
 #ifdef CONFIG_NUMA
 	struct mempolicy *task_mempolicy;
 #endif
-};
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	u64 ptracer_exec_id;
+#endif
+} __randomize_layout;
 
-struct mm_struct *proc_mem_open(struct inode *inode, unsigned int mode);
+struct mm_struct *proc_mem_open(struct inode *inode, unsigned int mode, u64 *ptracer_exec_id);
 
 extern const struct file_operations proc_pid_maps_operations;
 extern const struct file_operations proc_tid_maps_operations;
diff --git a/fs/proc/interrupts.c b/fs/proc/interrupts.c
index a352d57..cb94a5c 100644
--- a/fs/proc/interrupts.c
+++ b/fs/proc/interrupts.c
@@ -47,7 +47,11 @@ static const struct file_operations proc_interrupts_operations = {
 
 static int __init proc_interrupts_init(void)
 {
+#ifdef CONFIG_GRKERNSEC_PROC_ADD
+	proc_create_grsec("interrupts", 0, NULL, &proc_interrupts_operations);
+#else
 	proc_create("interrupts", 0, NULL, &proc_interrupts_operations);
+#endif
 	return 0;
 }
 fs_initcall(proc_interrupts_init);
diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c
index a939f5e..0de6e70 100644
--- a/fs/proc/kcore.c
+++ b/fs/proc/kcore.c
@@ -316,7 +316,7 @@ static char *storenote(struct memelfnote *men, char *bufp)
  * store an ELF coredump header in the supplied buffer
  * nphdr is the number of elf_phdr to insert
  */
-static void elf_kcore_store_hdr(char *bufp, int nphdr, int dataoff)
+static void elf_kcore_store_hdr(char *bufp, int nphdr, size_t dataoff)
 {
 	struct elf_prstatus prstatus;	/* NT_PRSTATUS */
 	struct elf_prpsinfo prpsinfo;	/* NT_PRPSINFO */
@@ -483,9 +483,10 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos)
 	 * the addresses in the elf_phdr on our list.
 	 */
 	start = kc_offset_to_vaddr(*fpos - elf_buflen);
-	if ((tsz = (PAGE_SIZE - (start & ~PAGE_MASK))) > buflen)
+	tsz = PAGE_SIZE - (start & ~PAGE_MASK);
+	if (tsz > buflen)
 		tsz = buflen;
-		
+
 	while (buflen) {
 		struct kcore_list *m;
 
@@ -515,19 +516,20 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos)
 		} else {
 			if (kern_addr_valid(start)) {
 				unsigned long n;
+				char *elf_buf;
+				mm_segment_t oldfs;
 
-				n = copy_to_user(buffer, (char *)start, tsz);
-				/*
-				 * We cannot distinguish between fault on source
-				 * and fault on destination. When this happens
-				 * we clear too and hope it will trigger the
-				 * EFAULT again.
-				 */
-				if (n) { 
-					if (clear_user(buffer + tsz - n,
-								n))
-						return -EFAULT;
-				}
+				elf_buf = kzalloc(tsz, GFP_KERNEL);
+				if (!elf_buf)
+					return -ENOMEM;
+				oldfs = get_fs();
+				set_fs(KERNEL_DS);
+				n = __copy_from_user(elf_buf, (const void __user *)start, tsz);
+				set_fs(oldfs);
+				n = copy_to_user(buffer, elf_buf, tsz);
+				kfree(elf_buf);
+				if (n)
+					return -EFAULT;
 			} else {
 				if (clear_user(buffer, tsz))
 					return -EFAULT;
@@ -547,6 +549,9 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos)
 
 static int open_kcore(struct inode *inode, struct file *filp)
 {
+#if defined(CONFIG_GRKERNSEC_PROC_ADD) || defined(CONFIG_GRKERNSEC_HIDESYM)
+	return -EPERM;
+#endif
 	if (!capable(CAP_SYS_RAWIO))
 		return -EPERM;
 	if (kcore_need_update)
@@ -580,7 +585,7 @@ static int __meminit kcore_callback(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block kcore_callback_nb __meminitdata = {
+static struct notifier_block kcore_callback_nb = {
 	.notifier_call = kcore_callback,
 	.priority = 0,
 };
diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
index 8372046..c8b72a8 100644
--- a/fs/proc/meminfo.c
+++ b/fs/proc/meminfo.c
@@ -159,7 +159,7 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
 		0ul, // used to be vmalloc 'used'
 		0ul  // used to be vmalloc 'largest_chunk'
 #ifdef CONFIG_MEMORY_FAILURE
-		, atomic_long_read(&num_poisoned_pages) << (PAGE_SHIFT - 10)
+		, atomic_long_read_unchecked(&num_poisoned_pages) << (PAGE_SHIFT - 10)
 #endif
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 		, K(global_page_state(NR_ANON_TRANSPARENT_HUGEPAGES) *
diff --git a/fs/proc/nommu.c b/fs/proc/nommu.c
index f8595e8..e0d13cbd 100644
--- a/fs/proc/nommu.c
+++ b/fs/proc/nommu.c
@@ -64,7 +64,7 @@ static int nommu_region_show(struct seq_file *m, struct vm_region *region)
 
 	if (file) {
 		seq_pad(m, ' ');
-		seq_file_path(m, file, "");
+		seq_file_path(m, file, "\n\\");
 	}
 
 	seq_putc(m, '\n');
diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c
index 350984a..a78a18c 100644
--- a/fs/proc/proc_net.c
+++ b/fs/proc/proc_net.c
@@ -23,9 +23,27 @@
 #include <linux/nsproxy.h>
 #include <net/net_namespace.h>
 #include <linux/seq_file.h>
+#include <linux/grsecurity.h>
 
 #include "internal.h"
 
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+static struct seq_operations *ipv6_seq_ops_addr;
+
+void register_ipv6_seq_ops_addr(struct seq_operations *addr)
+{
+	ipv6_seq_ops_addr = addr;
+}
+
+void unregister_ipv6_seq_ops_addr(void)
+{
+	ipv6_seq_ops_addr = NULL;
+}
+
+EXPORT_SYMBOL_GPL(register_ipv6_seq_ops_addr);
+EXPORT_SYMBOL_GPL(unregister_ipv6_seq_ops_addr);
+#endif
+
 static inline struct net *PDE_NET(struct proc_dir_entry *pde)
 {
 	return pde->parent->data;
@@ -36,6 +54,8 @@ static struct net *get_proc_net(const struct inode *inode)
 	return maybe_get_net(PDE_NET(PDE(inode)));
 }
 
+extern const struct seq_operations dev_seq_ops;
+
 int seq_open_net(struct inode *ino, struct file *f,
 		 const struct seq_operations *ops, int size)
 {
@@ -44,6 +64,14 @@ int seq_open_net(struct inode *ino, struct file *f,
 
 	BUG_ON(size < sizeof(*p));
 
+	/* only permit access to /proc/net/dev */
+	if (
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+	    ops != ipv6_seq_ops_addr && 
+#endif
+	    ops != &dev_seq_ops && gr_proc_is_restricted())
+		return -EACCES;
+
 	net = get_proc_net(ino);
 	if (net == NULL)
 		return -ENXIO;
@@ -66,6 +94,9 @@ int single_open_net(struct inode *inode, struct file *file,
 	int err;
 	struct net *net;
 
+	if (gr_proc_is_restricted())
+		return -EACCES;
+
 	err = -ENXIO;
 	net = get_proc_net(inode);
 	if (net == NULL)
@@ -220,7 +251,7 @@ static __net_exit void proc_net_ns_exit(struct net *net)
 	kfree(net->proc_net);
 }
 
-static struct pernet_operations __net_initdata proc_net_ns_ops = {
+static struct pernet_operations __net_initconst proc_net_ns_ops = {
 	.init = proc_net_ns_init,
 	.exit = proc_net_ns_exit,
 };
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index fe5b6e6..cd2913c 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -11,13 +11,21 @@
 #include <linux/namei.h>
 #include <linux/mm.h>
 #include <linux/module.h>
+#include <linux/nsproxy.h>
+#ifdef CONFIG_GRKERNSEC
+#include <net/net_namespace.h>
+#endif
 #include "internal.h"
 
+extern int gr_handle_chroot_sysctl(const int op);
+extern int gr_handle_sysctl_mod(const char *dirname, const char *name,
+				const int op);
+
 static const struct dentry_operations proc_sys_dentry_operations;
 static const struct file_operations proc_sys_file_operations;
-static const struct inode_operations proc_sys_inode_operations;
+const struct inode_operations proc_sys_inode_operations;
 static const struct file_operations proc_sys_dir_file_operations;
-static const struct inode_operations proc_sys_dir_operations;
+const struct inode_operations proc_sys_dir_operations;
 
 /* Support for permanently empty directories */
 
@@ -32,13 +40,17 @@ static bool is_empty_dir(struct ctl_table_header *head)
 
 static void set_empty_dir(struct ctl_dir *dir)
 {
-	dir->header.ctl_table[0].child = sysctl_mount_point;
+	pax_open_kernel();
+	const_cast(dir->header.ctl_table[0].child) = sysctl_mount_point;
+	pax_close_kernel();
 }
 
 static void clear_empty_dir(struct ctl_dir *dir)
 
 {
-	dir->header.ctl_table[0].child = NULL;
+	pax_open_kernel();
+	const_cast(dir->header.ctl_table[0].child) = NULL;
+	pax_close_kernel();
 }
 
 void proc_sys_poll_notify(struct ctl_table_poll *poll)
@@ -504,6 +516,9 @@ static struct dentry *proc_sys_lookup(struct inode *dir, struct dentry *dentry,
 
 	err = NULL;
 	d_set_d_op(dentry, &proc_sys_dentry_operations);
+
+	gr_handle_proc_create(dentry, inode);
+
 	d_add(dentry, inode);
 
 out:
@@ -519,6 +534,7 @@ static ssize_t proc_sys_call_handler(struct file *filp, void __user *buf,
 	struct inode *inode = file_inode(filp);
 	struct ctl_table_header *head = grab_header(inode);
 	struct ctl_table *table = PROC_I(inode)->sysctl_entry;
+	int op = write ? MAY_WRITE : MAY_READ;
 	ssize_t error;
 	size_t res;
 
@@ -530,7 +546,7 @@ static ssize_t proc_sys_call_handler(struct file *filp, void __user *buf,
 	 * and won't be until we finish.
 	 */
 	error = -EPERM;
-	if (sysctl_perm(head, table, write ? MAY_WRITE : MAY_READ))
+	if (sysctl_perm(head, table, op))
 		goto out;
 
 	/* if that can happen at all, it should be -EINVAL, not -EISDIR */
@@ -538,6 +554,27 @@ static ssize_t proc_sys_call_handler(struct file *filp, void __user *buf,
 	if (!table->proc_handler)
 		goto out;
 
+#ifdef CONFIG_GRKERNSEC
+	error = -EPERM;
+	if (gr_handle_chroot_sysctl(op))
+		goto out;
+	dget(filp->f_path.dentry);
+	if (gr_handle_sysctl_mod((const char *)filp->f_path.dentry->d_parent->d_name.name, table->procname, op)) {
+		dput(filp->f_path.dentry);
+		goto out;
+	}
+	dput(filp->f_path.dentry);
+	if (!gr_acl_handle_open(filp->f_path.dentry, filp->f_path.mnt, op))
+		goto out;
+	if (write) {
+		if (current->nsproxy->net_ns != table->extra2) {
+			if (!capable(CAP_SYS_ADMIN))
+				goto out;
+		} else if (!ns_capable(current->nsproxy->net_ns->user_ns, CAP_NET_ADMIN))
+			goto out;
+	}
+#endif
+
 	/* careful: calling conventions are nasty here */
 	res = count;
 	error = table->proc_handler(table, write, buf, &res, ppos);
@@ -635,6 +672,9 @@ static bool proc_sys_fill_cache(struct file *file,
 				return false;
 			} else {
 				d_set_d_op(child, &proc_sys_dentry_operations);
+
+				gr_handle_proc_create(child, inode);
+
 				d_add(child, inode);
 			}
 		} else {
@@ -678,6 +718,9 @@ static int scan(struct ctl_table_header *head, struct ctl_table *table,
 	if ((*pos)++ < ctx->pos)
 		return true;
 
+	if (!gr_acl_handle_hidden_file(file->f_path.dentry, file->f_path.mnt))
+		return 0;
+
 	if (unlikely(S_ISLNK(table->mode)))
 		res = proc_sys_link_fill_cache(file, ctx, head, table);
 	else
@@ -771,6 +814,9 @@ static int proc_sys_getattr(struct vfsmount *mnt, struct dentry *dentry, struct
 	if (IS_ERR(head))
 		return PTR_ERR(head);
 
+	if (table && !gr_acl_handle_hidden_file(dentry, mnt))
+		return -ENOENT;
+
 	generic_fillattr(inode, stat);
 	if (table)
 		stat->mode = (stat->mode & S_IFMT) | table->mode;
@@ -793,13 +839,13 @@ static const struct file_operations proc_sys_dir_file_operations = {
 	.llseek		= generic_file_llseek,
 };
 
-static const struct inode_operations proc_sys_inode_operations = {
+const struct inode_operations proc_sys_inode_operations = {
 	.permission	= proc_sys_permission,
 	.setattr	= proc_sys_setattr,
 	.getattr	= proc_sys_getattr,
 };
 
-static const struct inode_operations proc_sys_dir_operations = {
+const struct inode_operations proc_sys_dir_operations = {
 	.lookup		= proc_sys_lookup,
 	.permission	= proc_sys_permission,
 	.setattr	= proc_sys_setattr,
@@ -876,7 +922,7 @@ static struct ctl_dir *find_subdir(struct ctl_dir *dir,
 static struct ctl_dir *new_dir(struct ctl_table_set *set,
 			       const char *name, int namelen)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table;
 	struct ctl_dir *new;
 	struct ctl_node *node;
 	char *new_name;
@@ -888,7 +934,7 @@ static struct ctl_dir *new_dir(struct ctl_table_set *set,
 		return NULL;
 
 	node = (struct ctl_node *)(new + 1);
-	table = (struct ctl_table *)(node + 1);
+	table = (ctl_table_no_const *)(node + 1);
 	new_name = (char *)(table + 2);
 	memcpy(new_name, name, namelen);
 	new_name[namelen] = '\0';
@@ -1057,7 +1103,8 @@ static int sysctl_check_table(const char *path, struct ctl_table *table)
 static struct ctl_table_header *new_links(struct ctl_dir *dir, struct ctl_table *table,
 	struct ctl_table_root *link_root)
 {
-	struct ctl_table *link_table, *entry, *link;
+	ctl_table_no_const *link_table, *link;
+	struct ctl_table *entry;
 	struct ctl_table_header *links;
 	struct ctl_node *node;
 	char *link_name;
@@ -1080,7 +1127,7 @@ static struct ctl_table_header *new_links(struct ctl_dir *dir, struct ctl_table
 		return NULL;
 
 	node = (struct ctl_node *)(links + 1);
-	link_table = (struct ctl_table *)(node + nr_entries);
+	link_table = (ctl_table_no_const *)(node + nr_entries);
 	link_name = (char *)&link_table[nr_entries + 1];
 
 	for (link = link_table, entry = table; entry->procname; link++, entry++) {
@@ -1328,8 +1375,8 @@ static int register_leaf_sysctl_tables(const char *path, char *pos,
 	struct ctl_table_header ***subheader, struct ctl_table_set *set,
 	struct ctl_table *table)
 {
-	struct ctl_table *ctl_table_arg = NULL;
-	struct ctl_table *entry, *files;
+	ctl_table_no_const *ctl_table_arg = NULL, *files = NULL;
+	struct ctl_table *entry;
 	int nr_files = 0;
 	int nr_dirs = 0;
 	int err = -ENOMEM;
@@ -1341,10 +1388,9 @@ static int register_leaf_sysctl_tables(const char *path, char *pos,
 			nr_files++;
 	}
 
-	files = table;
 	/* If there are mixed files and directories we need a new table */
 	if (nr_dirs && nr_files) {
-		struct ctl_table *new;
+		ctl_table_no_const *new;
 		files = kzalloc(sizeof(struct ctl_table) * (nr_files + 1),
 				GFP_KERNEL);
 		if (!files)
@@ -1362,7 +1408,7 @@ static int register_leaf_sysctl_tables(const char *path, char *pos,
 	/* Register everything except a directory full of subdirectories */
 	if (nr_files || !nr_dirs) {
 		struct ctl_table_header *header;
-		header = __register_sysctl_table(set, path, files);
+		header = __register_sysctl_table(set, path, files ? files : table);
 		if (!header) {
 			kfree(ctl_table_arg);
 			goto out;
diff --git a/fs/proc/root.c b/fs/proc/root.c
index ec649c9..55e45e9 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -194,7 +194,15 @@ void __init proc_root_init(void)
 	proc_create_mount_point("openprom");
 #endif
 	proc_tty_init();
+#ifdef CONFIG_GRKERNSEC_PROC_ADD
+#ifdef CONFIG_GRKERNSEC_PROC_USER
+	proc_mkdir_mode("bus", S_IRUSR | S_IXUSR, NULL);
+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+	proc_mkdir_mode("bus", S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP, NULL);
+#endif
+#else
 	proc_mkdir("bus", NULL);
+#endif
 	proc_sys_init();
 }
 
diff --git a/fs/proc/stat.c b/fs/proc/stat.c
index 510413eb..34d9a8c 100644
--- a/fs/proc/stat.c
+++ b/fs/proc/stat.c
@@ -11,6 +11,7 @@
 #include <linux/irqnr.h>
 #include <linux/cputime.h>
 #include <linux/tick.h>
+#include <linux/grsecurity.h>
 
 #ifndef arch_irq_stat_cpu
 #define arch_irq_stat_cpu(cpu) 0
@@ -87,6 +88,18 @@ static int show_stat(struct seq_file *p, void *v)
 	u64 sum_softirq = 0;
 	unsigned int per_softirq_sums[NR_SOFTIRQS] = {0};
 	struct timespec boottime;
+	int unrestricted = 1;
+
+#ifdef CONFIG_GRKERNSEC_PROC_ADD
+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+	if (!uid_eq(current_uid(), GLOBAL_ROOT_UID)
+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
+		&& !in_group_p(grsec_proc_gid)
+#endif
+	)
+		unrestricted = 0;
+#endif
+#endif
 
 	user = nice = system = idle = iowait =
 		irq = softirq = steal = 0;
@@ -99,23 +112,25 @@ static int show_stat(struct seq_file *p, void *v)
 		nice += kcpustat_cpu(i).cpustat[CPUTIME_NICE];
 		system += kcpustat_cpu(i).cpustat[CPUTIME_SYSTEM];
 		idle += get_idle_time(i);
-		iowait += get_iowait_time(i);
-		irq += kcpustat_cpu(i).cpustat[CPUTIME_IRQ];
-		softirq += kcpustat_cpu(i).cpustat[CPUTIME_SOFTIRQ];
-		steal += kcpustat_cpu(i).cpustat[CPUTIME_STEAL];
-		guest += kcpustat_cpu(i).cpustat[CPUTIME_GUEST];
-		guest_nice += kcpustat_cpu(i).cpustat[CPUTIME_GUEST_NICE];
-		sum += kstat_cpu_irqs_sum(i);
-		sum += arch_irq_stat_cpu(i);
+		if (unrestricted) {
+			iowait += get_iowait_time(i);
+			irq += kcpustat_cpu(i).cpustat[CPUTIME_IRQ];
+			softirq += kcpustat_cpu(i).cpustat[CPUTIME_SOFTIRQ];
+			steal += kcpustat_cpu(i).cpustat[CPUTIME_STEAL];
+			guest += kcpustat_cpu(i).cpustat[CPUTIME_GUEST];
+			guest_nice += kcpustat_cpu(i).cpustat[CPUTIME_GUEST_NICE];
+			sum += kstat_cpu_irqs_sum(i);
+			sum += arch_irq_stat_cpu(i);
+			for (j = 0; j < NR_SOFTIRQS; j++) {
+				unsigned int softirq_stat = kstat_softirqs_cpu(j, i);
 
-		for (j = 0; j < NR_SOFTIRQS; j++) {
-			unsigned int softirq_stat = kstat_softirqs_cpu(j, i);
-
-			per_softirq_sums[j] += softirq_stat;
-			sum_softirq += softirq_stat;
+				per_softirq_sums[j] += softirq_stat;
+				sum_softirq += softirq_stat;
+			}
 		}
 	}
-	sum += arch_irq_stat();
+	if (unrestricted)
+		sum += arch_irq_stat();
 
 	seq_puts(p, "cpu ");
 	seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(user));
@@ -136,12 +151,14 @@ static int show_stat(struct seq_file *p, void *v)
 		nice = kcpustat_cpu(i).cpustat[CPUTIME_NICE];
 		system = kcpustat_cpu(i).cpustat[CPUTIME_SYSTEM];
 		idle = get_idle_time(i);
-		iowait = get_iowait_time(i);
-		irq = kcpustat_cpu(i).cpustat[CPUTIME_IRQ];
-		softirq = kcpustat_cpu(i).cpustat[CPUTIME_SOFTIRQ];
-		steal = kcpustat_cpu(i).cpustat[CPUTIME_STEAL];
-		guest = kcpustat_cpu(i).cpustat[CPUTIME_GUEST];
-		guest_nice = kcpustat_cpu(i).cpustat[CPUTIME_GUEST_NICE];
+		if (unrestricted) {
+			iowait = get_iowait_time(i);
+			irq = kcpustat_cpu(i).cpustat[CPUTIME_IRQ];
+			softirq = kcpustat_cpu(i).cpustat[CPUTIME_SOFTIRQ];
+			steal = kcpustat_cpu(i).cpustat[CPUTIME_STEAL];
+			guest = kcpustat_cpu(i).cpustat[CPUTIME_GUEST];
+			guest_nice = kcpustat_cpu(i).cpustat[CPUTIME_GUEST_NICE];
+		}
 		seq_printf(p, "cpu%d", i);
 		seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(user));
 		seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(nice));
@@ -159,7 +176,7 @@ static int show_stat(struct seq_file *p, void *v)
 
 	/* sum again ? it could be updated? */
 	for_each_irq_nr(j)
-		seq_put_decimal_ull(p, ' ', kstat_irqs_usr(j));
+		seq_put_decimal_ull(p, ' ', unrestricted ? kstat_irqs_usr(j) : 0ULL);
 
 	seq_printf(p,
 		"\nctxt %llu\n"
@@ -167,11 +184,11 @@ static int show_stat(struct seq_file *p, void *v)
 		"processes %lu\n"
 		"procs_running %lu\n"
 		"procs_blocked %lu\n",
-		nr_context_switches(),
+		unrestricted ? nr_context_switches() : 0ULL,
 		(unsigned long)jif,
-		total_forks,
-		nr_running(),
-		nr_iowait());
+		unrestricted ? total_forks : 0UL,
+		unrestricted ? nr_running() : 0UL,
+		unrestricted ? nr_iowait() : 0UL);
 
 	seq_printf(p, "softirq %llu", (unsigned long long)sum_softirq);
 
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 5415835..0095e58 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -15,12 +15,19 @@
 #include <linux/mmu_notifier.h>
 #include <linux/page_idle.h>
 #include <linux/shmem_fs.h>
+#include <linux/grsecurity.h>
 
 #include <asm/elf.h>
 #include <asm/uaccess.h>
 #include <asm/tlbflush.h>
 #include "internal.h"
 
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \
+			     (_mm->pax_flags & MF_PAX_RANDMMAP || \
+			      _mm->pax_flags & MF_PAX_SEGMEXEC))
+#endif
+
 void task_mem(struct seq_file *m, struct mm_struct *mm)
 {
 	unsigned long text, lib, swap, ptes, pmds, anon, file, shmem;
@@ -65,8 +72,13 @@ void task_mem(struct seq_file *m, struct mm_struct *mm)
 		"VmLib:\t%8lu kB\n"
 		"VmPTE:\t%8lu kB\n"
 		"VmPMD:\t%8lu kB\n"
-		"VmSwap:\t%8lu kB\n",
-		hiwater_vm << (PAGE_SHIFT-10),
+		"VmSwap:\t%8lu kB\n"
+
+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
+		"CsBase:\t%8lx\nCsLim:\t%8lx\n"
+#endif
+
+		,hiwater_vm << (PAGE_SHIFT-10),
 		total_vm << (PAGE_SHIFT-10),
 		mm->locked_vm << (PAGE_SHIFT-10),
 		mm->pinned_vm << (PAGE_SHIFT-10),
@@ -79,7 +91,19 @@ void task_mem(struct seq_file *m, struct mm_struct *mm)
 		mm->stack_vm << (PAGE_SHIFT-10), text, lib,
 		ptes >> 10,
 		pmds >> 10,
-		swap << (PAGE_SHIFT-10));
+		swap << (PAGE_SHIFT-10)
+
+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+		, PAX_RAND_FLAGS(mm) ? 0 : mm->context.user_cs_base
+		, PAX_RAND_FLAGS(mm) ? 0 : mm->context.user_cs_limit
+#else
+		, mm->context.user_cs_base
+		, mm->context.user_cs_limit
+#endif
+#endif
+
+	);
 	hugetlb_report_usage(m, mm);
 }
 
@@ -230,7 +254,11 @@ static int proc_maps_open(struct inode *inode, struct file *file,
 		return -ENOMEM;
 
 	priv->inode = inode;
-	priv->mm = proc_mem_open(inode, PTRACE_MODE_READ);
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	priv->mm = proc_mem_open(inode, PTRACE_MODE_READ, &priv->ptracer_exec_id);
+#else
+	priv->mm = proc_mem_open(inode, PTRACE_MODE_READ, NULL);
+#endif
 	if (IS_ERR(priv->mm)) {
 		int err = PTR_ERR(priv->mm);
 
@@ -281,11 +309,11 @@ static int is_stack(struct proc_maps_private *priv,
 			stack = vma_is_stack_for_task(vma, task);
 		rcu_read_unlock();
 	}
-	return stack;
+	return stack || (vma->vm_flags & (VM_GROWSDOWN | VM_GROWSUP));
 }
 
 static void
-show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
+show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid, bool restrict)
 {
 	struct mm_struct *mm = vma->vm_mm;
 	struct file *file = vma->vm_file;
@@ -304,13 +332,8 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
 		pgoff = ((loff_t)vma->vm_pgoff) << PAGE_SHIFT;
 	}
 
-	/* We don't show the stack guard page in /proc/maps */
-	start = vma->vm_start;
-	if (stack_guard_page_start(vma, start))
-		start += PAGE_SIZE;
-	end = vma->vm_end;
-	if (stack_guard_page_end(vma, end))
-		end -= PAGE_SIZE;
+	start = restrict ? 0UL : vma->vm_start;
+	end = restrict ? 0UL : vma->vm_end;
 
 	seq_setwidth(m, 25 + sizeof(void *) * 6 - 1);
 	seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu ",
@@ -320,7 +343,7 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
 			flags & VM_WRITE ? 'w' : '-',
 			flags & VM_EXEC ? 'x' : '-',
 			flags & VM_MAYSHARE ? 's' : 'p',
-			pgoff,
+			restrict ? 0UL : pgoff,
 			MAJOR(dev), MINOR(dev), ino);
 
 	/*
@@ -329,7 +352,7 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
 	 */
 	if (file) {
 		seq_pad(m, ' ');
-		seq_file_path(m, file, "\n");
+		seq_file_path(m, file, "\n\\");
 		goto done;
 	}
 
@@ -366,7 +389,20 @@ done:
 
 static int show_map(struct seq_file *m, void *v, int is_pid)
 {
-	show_map_vma(m, v, is_pid);
+	bool restrict = false;
+
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	struct vm_area_struct *vma = (struct vm_area_struct *)v;
+	struct proc_maps_private *priv = m->private;
+	restrict = current->exec_id != priv->ptracer_exec_id;
+	if (current->exec_id != m->exec_id && restrict) {
+		gr_log_badprocpid("maps");
+		return 0;
+	}
+	if (restrict)
+		restrict = PAX_RAND_FLAGS(vma->vm_mm);
+#endif
+	show_map_vma(m, v, is_pid, restrict);
 	m_cache_vma(m, v);
 	return 0;
 }
@@ -646,6 +682,9 @@ static void show_smap_vma_flags(struct seq_file *m, struct vm_area_struct *vma)
 		[ilog2(VM_RAND_READ)]	= "rr",
 		[ilog2(VM_DONTCOPY)]	= "dc",
 		[ilog2(VM_DONTEXPAND)]	= "de",
+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
+		[ilog2(VM_PAGEEXEC)]	= "px",
+#endif
 		[ilog2(VM_ACCOUNT)]	= "ac",
 		[ilog2(VM_NORESERVE)]	= "nr",
 		[ilog2(VM_HUGETLB)]	= "ht",
@@ -727,7 +766,14 @@ static int show_smap(struct seq_file *m, void *v, int is_pid)
 		.mm = vma->vm_mm,
 		.private = &mss,
 	};
+	bool restrict = false;
 
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	if (current->exec_id != m->exec_id) {
+		gr_log_badprocpid("smaps");
+		return 0;
+	}
+#endif
 	memset(&mss, 0, sizeof mss);
 
 #ifdef CONFIG_SHMEM
@@ -754,10 +800,15 @@ static int show_smap(struct seq_file *m, void *v, int is_pid)
 	}
 #endif
 
-	/* mmap_sem is held in m_start */
-	walk_page_vma(vma, &smaps_walk);
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	if (PAX_RAND_FLAGS(vma->vm_mm))
+		restrict = true;
+	else
+#endif
+		/* mmap_sem is held in m_start */
+		walk_page_vma(vma, &smaps_walk);
 
-	show_map_vma(m, vma, is_pid);
+	show_map_vma(m, vma, is_pid, restrict);
 
 	seq_printf(m,
 		   "Size:           %8lu kB\n"
@@ -777,7 +828,7 @@ static int show_smap(struct seq_file *m, void *v, int is_pid)
 		   "KernelPageSize: %8lu kB\n"
 		   "MMUPageSize:    %8lu kB\n"
 		   "Locked:         %8lu kB\n",
-		   (vma->vm_end - vma->vm_start) >> 10,
+		   restrict ? 0UL : (vma->vm_end - vma->vm_start) >> 10,
 		   mss.resident >> 10,
 		   (unsigned long)(mss.pss >> (10 + PSS_SHIFT)),
 		   mss.shared_clean  >> 10,
@@ -1426,7 +1477,7 @@ static int pagemap_open(struct inode *inode, struct file *file)
 {
 	struct mm_struct *mm;
 
-	mm = proc_mem_open(inode, PTRACE_MODE_READ);
+	mm = proc_mem_open(inode, PTRACE_MODE_READ, NULL);
 	if (IS_ERR(mm))
 		return PTR_ERR(mm);
 	file->private_data = mm;
@@ -1629,6 +1680,13 @@ static int show_numa_map(struct seq_file *m, void *v, int is_pid)
 	char buffer[64];
 	int nid;
 
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	if (current->exec_id != m->exec_id) {
+		gr_log_badprocpid("numa_maps");
+		return 0;
+	}
+#endif
+
 	if (!mm)
 		return 0;
 
@@ -1643,11 +1701,15 @@ static int show_numa_map(struct seq_file *m, void *v, int is_pid)
 		mpol_to_str(buffer, sizeof(buffer), proc_priv->task_mempolicy);
 	}
 
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	seq_printf(m, "%08lx %s", PAX_RAND_FLAGS(vma->vm_mm) ? 0UL : vma->vm_start, buffer);
+#else
 	seq_printf(m, "%08lx %s", vma->vm_start, buffer);
+#endif
 
 	if (file) {
 		seq_puts(m, " file=");
-		seq_file_path(m, file, "\n\t= ");
+		seq_file_path(m, file, "\n\t\\= ");
 	} else if (vma->vm_start <= mm->brk && vma->vm_end >= mm->start_brk) {
 		seq_puts(m, " heap");
 	} else if (is_stack(proc_priv, vma, is_pid)) {
diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c
index faacb0c..b185575 100644
--- a/fs/proc/task_nommu.c
+++ b/fs/proc/task_nommu.c
@@ -51,7 +51,7 @@ void task_mem(struct seq_file *m, struct mm_struct *mm)
 	else
 		bytes += kobjsize(mm);
 	
-	if (current->fs && current->fs->users > 1)
+	if (current->fs && atomic_read(&current->fs->users) > 1)
 		sbytes += kobjsize(current->fs);
 	else
 		bytes += kobjsize(current->fs);
@@ -142,7 +142,7 @@ static int is_stack(struct proc_maps_private *priv,
 			stack = vma_is_stack_for_task(vma, task);
 		rcu_read_unlock();
 	}
-	return stack;
+	return stack || (vma->vm_flags & (VM_GROWSDOWN | VM_GROWSUP));
 }
 
 /*
@@ -183,7 +183,7 @@ static int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma,
 
 	if (file) {
 		seq_pad(m, ' ');
-		seq_file_path(m, file, "");
+		seq_file_path(m, file, "\n\\");
 	} else if (mm && is_stack(priv, vma, is_pid)) {
 		seq_pad(m, ' ');
 		seq_printf(m, "[stack]");
@@ -287,7 +287,7 @@ static int maps_open(struct inode *inode, struct file *file,
 		return -ENOMEM;
 
 	priv->inode = inode;
-	priv->mm = proc_mem_open(inode, PTRACE_MODE_READ);
+	priv->mm = proc_mem_open(inode, PTRACE_MODE_READ, NULL);
 	if (IS_ERR(priv->mm)) {
 		int err = PTR_ERR(priv->mm);
 
diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index 8afe10c..61d505b 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -105,9 +105,13 @@ static ssize_t read_from_oldmem(char *buf, size_t count,
 			nr_bytes = count;
 
 		/* If pfn is not ram, return zeros for sparse dump files */
-		if (pfn_is_ram(pfn) == 0)
-			memset(buf, 0, nr_bytes);
-		else {
+		if (pfn_is_ram(pfn) == 0) {
+			if (userbuf) {
+				if (clear_user((char __force_user *)buf, nr_bytes))
+					return -EFAULT;
+			} else
+				memset(buf, 0, nr_bytes);
+		} else {
 			tmp = copy_oldmem_page(pfn, buf, nr_bytes,
 						offset, userbuf);
 			if (tmp < 0)
@@ -170,7 +174,7 @@ int __weak remap_oldmem_pfn_range(struct vm_area_struct *vma,
 static int copy_to(void *target, void *src, size_t size, int userbuf)
 {
 	if (userbuf) {
-		if (copy_to_user((char __user *) target, src, size))
+		if (copy_to_user((char __force_user *) target, src, size))
 			return -EFAULT;
 	} else {
 		memcpy(target, src, size);
@@ -235,7 +239,7 @@ static ssize_t __read_vmcore(char *buffer, size_t buflen, loff_t *fpos,
 					    m->offset + m->size - *fpos,
 					    buflen);
 			start = m->paddr + *fpos - m->offset;
-			tmp = read_from_oldmem(buffer, tsz, &start, userbuf);
+			tmp = read_from_oldmem((char __force_kernel *)buffer, tsz, &start, userbuf);
 			if (tmp < 0)
 				return tmp;
 			buflen -= tsz;
@@ -255,7 +259,7 @@ static ssize_t __read_vmcore(char *buffer, size_t buflen, loff_t *fpos,
 static ssize_t read_vmcore(struct file *file, char __user *buffer,
 			   size_t buflen, loff_t *fpos)
 {
-	return __read_vmcore((__force char *) buffer, buflen, fpos, 1);
+	return __read_vmcore((__force_kernel char *) buffer, buflen, fpos, 1);
 }
 
 /*
diff --git a/fs/qnx6/qnx6.h b/fs/qnx6/qnx6.h
index f23b5c4..da5d2f3 100644
--- a/fs/qnx6/qnx6.h
+++ b/fs/qnx6/qnx6.h
@@ -74,7 +74,7 @@ enum {
 	BYTESEX_BE,
 };
 
-static inline __u64 fs64_to_cpu(struct qnx6_sb_info *sbi, __fs64 n)
+static inline __u64 __intentional_overflow(-1) fs64_to_cpu(struct qnx6_sb_info *sbi, __fs64 n)
 {
 	if (sbi->s_bytesex == BYTESEX_LE)
 		return le64_to_cpu((__force __le64)n);
@@ -90,7 +90,7 @@ static inline __fs64 cpu_to_fs64(struct qnx6_sb_info *sbi, __u64 n)
 		return (__force __fs64)cpu_to_be64(n);
 }
 
-static inline __u32 fs32_to_cpu(struct qnx6_sb_info *sbi, __fs32 n)
+static inline __u32 __intentional_overflow(-1) fs32_to_cpu(struct qnx6_sb_info *sbi, __fs32 n)
 {
 	if (sbi->s_bytesex == BYTESEX_LE)
 		return le32_to_cpu((__force __le32)n);
diff --git a/fs/quota/netlink.c b/fs/quota/netlink.c
index d07a2f9..380906a 100644
--- a/fs/quota/netlink.c
+++ b/fs/quota/netlink.c
@@ -42,7 +42,7 @@ static struct genl_family quota_genl_family = {
 void quota_send_warning(struct kqid qid, dev_t dev,
 			const char warntype)
 {
-	static atomic_t seq;
+	static atomic_unchecked_t seq;
 	struct sk_buff *skb;
 	void *msg_head;
 	int ret;
@@ -58,7 +58,7 @@ void quota_send_warning(struct kqid qid, dev_t dev,
 		  "VFS: Not enough memory to send quota warning.\n");
 		return;
 	}
-	msg_head = genlmsg_put(skb, 0, atomic_add_return(1, &seq),
+	msg_head = genlmsg_put(skb, 0, atomic_add_return_unchecked(1, &seq),
 			&quota_genl_family, 0, QUOTA_NL_C_WARNING);
 	if (!msg_head) {
 		printk(KERN_ERR
diff --git a/fs/read_write.c b/fs/read_write.c
index cf377cf..86fd2b6 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -23,7 +23,8 @@
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
 
-typedef ssize_t (*io_fn_t)(struct file *, char __user *, size_t, loff_t *);
+typedef ssize_t (*io_fnr_t)(struct file *, char __user *, size_t, loff_t *);
+typedef ssize_t (*io_fnw_t)(struct file *, const char __user *, size_t, loff_t *);
 typedef ssize_t (*iter_fn_t)(struct kiocb *, struct iov_iter *);
 
 const struct file_operations generic_ro_fops = {
@@ -545,7 +546,7 @@ ssize_t __kernel_write(struct file *file, const char *buf, size_t count, loff_t
 
 	old_fs = get_fs();
 	set_fs(get_ds());
-	p = (__force const char __user *)buf;
+	p = (const char __force_user *)buf;
 	if (count > MAX_RW_COUNT)
 		count =  MAX_RW_COUNT;
 	ret = __vfs_write(file, p, count, pos);
@@ -714,7 +715,7 @@ static ssize_t do_iter_readv_writev(struct file *filp, struct iov_iter *iter,
 
 /* Do it by hand, with file-ops */
 static ssize_t do_loop_readv_writev(struct file *filp, struct iov_iter *iter,
-		loff_t *ppos, io_fn_t fn, int flags)
+		loff_t *ppos, io_fnr_t fnr, io_fnw_t fnw, int flags)
 {
 	ssize_t ret = 0;
 
@@ -725,7 +726,10 @@ static ssize_t do_loop_readv_writev(struct file *filp, struct iov_iter *iter,
 		struct iovec iovec = iov_iter_iovec(iter);
 		ssize_t nr;
 
-		nr = fn(filp, iovec.iov_base, iovec.iov_len, ppos);
+		if (fnr)
+			nr = fnr(filp, iovec.iov_base, iovec.iov_len, ppos);
+		else
+			nr = fnw(filp, iovec.iov_base, iovec.iov_len, ppos);
 
 		if (nr < 0) {
 			if (!ret)
@@ -829,7 +833,8 @@ static ssize_t do_readv_writev(int type, struct file *file,
 	struct iovec *iov = iovstack;
 	struct iov_iter iter;
 	ssize_t ret;
-	io_fn_t fn;
+	io_fnr_t fnr;
+	io_fnw_t fnw;
 	iter_fn_t iter_fn;
 
 	ret = import_iovec(type, uvector, nr_segs,
@@ -845,10 +850,12 @@ static ssize_t do_readv_writev(int type, struct file *file,
 		goto out;
 
 	if (type == READ) {
-		fn = file->f_op->read;
+		fnr = file->f_op->read;
+		fnw = NULL;
 		iter_fn = file->f_op->read_iter;
 	} else {
-		fn = (io_fn_t)file->f_op->write;
+		fnr = NULL;
+		fnw = file->f_op->write;
 		iter_fn = file->f_op->write_iter;
 		file_start_write(file);
 	}
@@ -856,7 +863,7 @@ static ssize_t do_readv_writev(int type, struct file *file,
 	if (iter_fn)
 		ret = do_iter_readv_writev(file, &iter, pos, iter_fn, flags);
 	else
-		ret = do_loop_readv_writev(file, &iter, pos, fn, flags);
+		ret = do_loop_readv_writev(file, &iter, pos, fnr, fnw, flags);
 
 	if (type != READ)
 		file_end_write(file);
@@ -1054,7 +1061,8 @@ static ssize_t compat_do_readv_writev(int type, struct file *file,
 	struct iovec *iov = iovstack;
 	struct iov_iter iter;
 	ssize_t ret;
-	io_fn_t fn;
+	io_fnr_t fnr;
+	io_fnw_t fnw;
 	iter_fn_t iter_fn;
 
 	ret = compat_import_iovec(type, uvector, nr_segs,
@@ -1070,10 +1078,12 @@ static ssize_t compat_do_readv_writev(int type, struct file *file,
 		goto out;
 
 	if (type == READ) {
-		fn = file->f_op->read;
+		fnr = file->f_op->read;
+		fnw = NULL;
 		iter_fn = file->f_op->read_iter;
 	} else {
-		fn = (io_fn_t)file->f_op->write;
+		fnr = NULL;
+		fnw = file->f_op->write;
 		iter_fn = file->f_op->write_iter;
 		file_start_write(file);
 	}
@@ -1081,7 +1091,7 @@ static ssize_t compat_do_readv_writev(int type, struct file *file,
 	if (iter_fn)
 		ret = do_iter_readv_writev(file, &iter, pos, iter_fn, flags);
 	else
-		ret = do_loop_readv_writev(file, &iter, pos, fn, flags);
+		ret = do_loop_readv_writev(file, &iter, pos, fnr, fnw, flags);
 
 	if (type != READ)
 		file_end_write(file);
diff --git a/fs/readdir.c b/fs/readdir.c
index e69ef3b..ffb5456 100644
--- a/fs/readdir.c
+++ b/fs/readdir.c
@@ -18,6 +18,7 @@
 #include <linux/security.h>
 #include <linux/syscalls.h>
 #include <linux/unistd.h>
+#include <linux/namei.h>
 
 #include <asm/uaccess.h>
 
@@ -71,6 +72,7 @@ struct old_linux_dirent {
 struct readdir_callback {
 	struct dir_context ctx;
 	struct old_linux_dirent __user * dirent;
+	struct file * file;
 	int result;
 };
 
@@ -89,6 +91,10 @@ static int fillonedir(struct dir_context *ctx, const char *name, int namlen,
 		buf->result = -EOVERFLOW;
 		return -EOVERFLOW;
 	}
+
+	if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
+		return 0;
+
 	buf->result++;
 	dirent = buf->dirent;
 	if (!access_ok(VERIFY_WRITE, dirent,
@@ -120,6 +126,7 @@ SYSCALL_DEFINE3(old_readdir, unsigned int, fd,
 	if (!f.file)
 		return -EBADF;
 
+	buf.file = f.file;
 	error = iterate_dir(f.file, &buf.ctx);
 	if (buf.result)
 		error = buf.result;
@@ -145,6 +152,7 @@ struct getdents_callback {
 	struct dir_context ctx;
 	struct linux_dirent __user * current_dir;
 	struct linux_dirent __user * previous;
+	struct file * file;
 	int count;
 	int error;
 };
@@ -167,6 +175,10 @@ static int filldir(struct dir_context *ctx, const char *name, int namlen,
 		buf->error = -EOVERFLOW;
 		return -EOVERFLOW;
 	}
+
+	if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
+		return 0;
+
 	dirent = buf->previous;
 	if (dirent) {
 		if (__put_user(offset, &dirent->d_off))
@@ -212,6 +224,7 @@ SYSCALL_DEFINE3(getdents, unsigned int, fd,
 	if (!f.file)
 		return -EBADF;
 
+	buf.file = f.file;
 	error = iterate_dir(f.file, &buf.ctx);
 	if (error >= 0)
 		error = buf.error;
@@ -230,6 +243,7 @@ struct getdents_callback64 {
 	struct dir_context ctx;
 	struct linux_dirent64 __user * current_dir;
 	struct linux_dirent64 __user * previous;
+	struct file *file;
 	int count;
 	int error;
 };
@@ -246,6 +260,10 @@ static int filldir64(struct dir_context *ctx, const char *name, int namlen,
 	buf->error = -EINVAL;	/* only used if we fail.. */
 	if (reclen > buf->count)
 		return -EINVAL;
+
+	if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
+		return 0;
+
 	dirent = buf->previous;
 	if (dirent) {
 		if (__put_user(offset, &dirent->d_off))
@@ -293,13 +311,13 @@ SYSCALL_DEFINE3(getdents64, unsigned int, fd,
 	if (!f.file)
 		return -EBADF;
 
+	buf.file = f.file;
 	error = iterate_dir(f.file, &buf.ctx);
 	if (error >= 0)
 		error = buf.error;
 	lastdirent = buf.previous;
 	if (lastdirent) {
-		typeof(lastdirent->d_off) d_off = buf.ctx.pos;
-		if (__put_user(d_off, &lastdirent->d_off))
+		if (__put_user(buf.ctx.pos, &lastdirent->d_off))
 			error = -EFAULT;
 		else
 			error = count - buf.count;
diff --git a/fs/reiserfs/do_balan.c b/fs/reiserfs/do_balan.c
index 9c02d96..6562c10 100644
--- a/fs/reiserfs/do_balan.c
+++ b/fs/reiserfs/do_balan.c
@@ -1887,7 +1887,7 @@ void do_balance(struct tree_balance *tb, struct item_head *ih,
 		return;
 	}
 
-	atomic_inc(&fs_generation(tb->tb_sb));
+	atomic_inc_unchecked(&fs_generation(tb->tb_sb));
 	do_balance_starts(tb);
 
 	/*
diff --git a/fs/reiserfs/item_ops.c b/fs/reiserfs/item_ops.c
index aca73dd..e3c558d 100644
--- a/fs/reiserfs/item_ops.c
+++ b/fs/reiserfs/item_ops.c
@@ -724,18 +724,18 @@ static void errcatch_print_vi(struct virtual_item *vi)
 }
 
 static struct item_operations errcatch_ops = {
-	errcatch_bytes_number,
-	errcatch_decrement_key,
-	errcatch_is_left_mergeable,
-	errcatch_print_item,
-	errcatch_check_item,
+	.bytes_number = errcatch_bytes_number,
+	.decrement_key = errcatch_decrement_key,
+	.is_left_mergeable = errcatch_is_left_mergeable,
+	.print_item = errcatch_print_item,
+	.check_item = errcatch_check_item,
 
-	errcatch_create_vi,
-	errcatch_check_left,
-	errcatch_check_right,
-	errcatch_part_size,
-	errcatch_unit_num,
-	errcatch_print_vi
+	.create_vi = errcatch_create_vi,
+	.check_left = errcatch_check_left,
+	.check_right = errcatch_check_right,
+	.part_size = errcatch_part_size,
+	.unit_num = errcatch_unit_num,
+	.print_vi = errcatch_print_vi
 };
 
 #if ! (TYPE_STAT_DATA == 0 && TYPE_INDIRECT == 1 && TYPE_DIRECT == 2 && TYPE_DIRENTRY == 3)
diff --git a/fs/reiserfs/procfs.c b/fs/reiserfs/procfs.c
index fe99915..24fd9bd 100644
--- a/fs/reiserfs/procfs.c
+++ b/fs/reiserfs/procfs.c
@@ -114,7 +114,7 @@ static int show_super(struct seq_file *m, void *unused)
 		   "SMALL_TAILS " : "NO_TAILS ",
 		   replay_only(sb) ? "REPLAY_ONLY " : "",
 		   convert_reiserfs(sb) ? "CONV " : "",
-		   atomic_read(&r->s_generation_counter),
+		   atomic_read_unchecked(&r->s_generation_counter),
 		   SF(s_disk_reads), SF(s_disk_writes), SF(s_fix_nodes),
 		   SF(s_do_balance), SF(s_unneeded_left_neighbor),
 		   SF(s_good_search_by_key_reada), SF(s_bmaps),
diff --git a/fs/reiserfs/reiserfs.h b/fs/reiserfs/reiserfs.h
index 2adcde1..7d27bc8 100644
--- a/fs/reiserfs/reiserfs.h
+++ b/fs/reiserfs/reiserfs.h
@@ -580,7 +580,7 @@ struct reiserfs_sb_info {
 	/* Comment? -Hans */
 	wait_queue_head_t s_wait;
 	/* increased by one every time the  tree gets re-balanced */
-	atomic_t s_generation_counter;
+	atomic_unchecked_t s_generation_counter;
 
 	/* File system properties. Currently holds on-disk FS format */
 	unsigned long s_properties;
@@ -2300,7 +2300,7 @@ static inline loff_t max_reiserfs_offset(struct inode *inode)
 #define REISERFS_USER_MEM		1	/* user memory mode */
 
 #define fs_generation(s) (REISERFS_SB(s)->s_generation_counter)
-#define get_generation(s) atomic_read (&fs_generation(s))
+#define get_generation(s) atomic_read_unchecked (&fs_generation(s))
 #define FILESYSTEM_CHANGED_TB(tb)  (get_generation((tb)->tb_sb) != (tb)->fs_gen)
 #define __fs_changed(gen,s) (gen != get_generation (s))
 #define fs_changed(gen,s)		\
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index b8f2d1e..5922f16 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -1872,6 +1872,10 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
 	sbi->s_mount_opt |= (1 << REISERFS_SMALLTAIL);
 	sbi->s_mount_opt |= (1 << REISERFS_ERROR_RO);
 	sbi->s_mount_opt |= (1 << REISERFS_BARRIER_FLUSH);
+#ifdef CONFIG_REISERFS_FS_XATTR
+	/* turn on user xattrs by default */
+	sbi->s_mount_opt |= (1 << REISERFS_XATTRS_USER);
+#endif
 	/* no preallocation minimum, be smart in reiserfs_file_write instead */
 	sbi->s_alloc_options.preallocmin = 0;
 	/* Preallocate by 16 blocks (17-1) at once */
diff --git a/fs/select.c b/fs/select.c
index 8692939..44f4aa3 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -20,6 +20,7 @@
 #include <linux/export.h>
 #include <linux/slab.h>
 #include <linux/poll.h>
+#include <linux/security.h>
 #include <linux/personality.h> /* for STICKY_TIMEOUTS */
 #include <linux/file.h>
 #include <linux/fdtable.h>
@@ -717,7 +718,7 @@ SYSCALL_DEFINE6(pselect6, int, n, fd_set __user *, inp, fd_set __user *, outp,
 
 #ifdef __ARCH_WANT_SYS_OLD_SELECT
 struct sel_arg_struct {
-	unsigned long n;
+	long n;
 	fd_set __user *inp, *outp, *exp;
 	struct timeval __user *tvp;
 };
@@ -880,6 +881,7 @@ int do_sys_poll(struct pollfd __user *ufds, unsigned int nfds,
  	struct poll_list *walk = head;
  	unsigned long todo = nfds;
 
+	gr_learn_resource(current, RLIMIT_NOFILE, nfds, 1);
 	if (nfds > rlimit(RLIMIT_NOFILE))
 		return -EINVAL;
 
diff --git a/fs/seq_file.c b/fs/seq_file.c
index 19f532e..b1e12af 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -14,6 +14,8 @@
 #include <linux/mm.h>
 #include <linux/printk.h>
 #include <linux/string_helpers.h>
+#include <linux/sched.h>
+#include <linux/grsecurity.h>
 
 #include <asm/uaccess.h>
 #include <asm/page.h>
@@ -26,7 +28,7 @@ static void seq_set_overflow(struct seq_file *m)
 static void *seq_buf_alloc(unsigned long size)
 {
 	void *buf;
-	gfp_t gfp = GFP_KERNEL;
+	gfp_t gfp = GFP_KERNEL | GFP_USERCOPY;
 
 	/*
 	 * For high order allocations, use __GFP_NORETRY to avoid oom-killing -
@@ -38,7 +40,7 @@ static void *seq_buf_alloc(unsigned long size)
 		gfp |= __GFP_NORETRY | __GFP_NOWARN;
 	buf = kmalloc(size, gfp);
 	if (!buf && size > PAGE_SIZE)
-		buf = vmalloc(size);
+		buf = vmalloc_usercopy(size);
 	return buf;
 }
 
@@ -77,6 +79,10 @@ int seq_open(struct file *file, const struct seq_operations *op)
 	// to the lifetime of the file.
 	p->file = file;
 
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	p->exec_id = current->exec_id;
+#endif
+
 	/*
 	 * Wrappers around seq_open(e.g. swaps_open) need to be
 	 * aware of this. If they set f_version themselves, they
@@ -98,6 +104,16 @@ int seq_open(struct file *file, const struct seq_operations *op)
 }
 EXPORT_SYMBOL(seq_open);
 
+
+int seq_open_restrict(struct file *file, const struct seq_operations *op)
+{
+	if (gr_proc_is_restricted())
+		return -EACCES;
+
+	return seq_open(file, op);
+}
+EXPORT_SYMBOL(seq_open_restrict);
+
 static int traverse(struct seq_file *m, loff_t offset)
 {
 	loff_t pos = 0, index;
@@ -169,7 +185,7 @@ Eoverflow:
 ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
 {
 	struct seq_file *m = file->private_data;
-	size_t copied = 0;
+	ssize_t copied = 0;
 	loff_t pos;
 	size_t n;
 	void *p;
@@ -564,7 +580,7 @@ static void single_stop(struct seq_file *p, void *v)
 int single_open(struct file *file, int (*show)(struct seq_file *, void *),
 		void *data)
 {
-	struct seq_operations *op = kmalloc(sizeof(*op), GFP_KERNEL);
+	seq_operations_no_const *op = kzalloc(sizeof(*op), GFP_KERNEL);
 	int res = -ENOMEM;
 
 	if (op) {
@@ -600,6 +616,17 @@ int single_open_size(struct file *file, int (*show)(struct seq_file *, void *),
 }
 EXPORT_SYMBOL(single_open_size);
 
+int single_open_restrict(struct file *file, int (*show)(struct seq_file *, void *),
+		void *data)
+{
+	if (gr_proc_is_restricted())
+		return -EACCES;
+
+	return single_open(file, show, data);
+}
+EXPORT_SYMBOL(single_open_restrict);
+
+
 int single_release(struct inode *inode, struct file *file)
 {
 	const struct seq_operations *op = ((struct seq_file *)file->private_data)->op;
diff --git a/fs/splice.c b/fs/splice.c
index dd9bf7e..3d55c3e 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -195,7 +195,7 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe,
 	pipe_lock(pipe);
 
 	for (;;) {
-		if (!pipe->readers) {
+		if (!atomic_read(&pipe->readers)) {
 			send_sig(SIGPIPE, current, 0);
 			if (!ret)
 				ret = -EPIPE;
@@ -218,7 +218,7 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe,
 			page_nr++;
 			ret += buf->len;
 
-			if (pipe->files)
+			if (atomic_read(&pipe->files))
 				do_wakeup = 1;
 
 			if (!--spd->nr_pages)
@@ -249,9 +249,9 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe,
 			do_wakeup = 0;
 		}
 
-		pipe->waiting_writers++;
+		atomic_inc(&pipe->waiting_writers);
 		pipe_wait(pipe);
-		pipe->waiting_writers--;
+		atomic_dec(&pipe->waiting_writers);
 	}
 
 	pipe_unlock(pipe);
@@ -580,7 +580,7 @@ static ssize_t kernel_readv(struct file *file, const struct iovec *vec,
 	old_fs = get_fs();
 	set_fs(get_ds());
 	/* The cast to a user pointer is valid due to the set_fs() */
-	res = vfs_readv(file, (const struct iovec __user *)vec, vlen, &pos, 0);
+	res = vfs_readv(file, (const struct iovec __force_user *)vec, vlen, &pos, 0);
 	set_fs(old_fs);
 
 	return res;
@@ -595,7 +595,7 @@ ssize_t kernel_write(struct file *file, const char *buf, size_t count,
 	old_fs = get_fs();
 	set_fs(get_ds());
 	/* The cast to a user pointer is valid due to the set_fs() */
-	res = vfs_write(file, (__force const char __user *)buf, count, &pos);
+	res = vfs_write(file, (const char __force_user *)buf, count, &pos);
 	set_fs(old_fs);
 
 	return res;
@@ -648,7 +648,7 @@ ssize_t default_file_splice_read(struct file *in, loff_t *ppos,
 			goto err;
 
 		this_len = min_t(size_t, len, PAGE_SIZE - offset);
-		vec[i].iov_base = (void __user *) page_address(page);
+		vec[i].iov_base = (void __force_user *) page_address(page);
 		vec[i].iov_len = this_len;
 		spd.pages[i] = page;
 		spd.nr_pages++;
@@ -787,7 +787,7 @@ static int splice_from_pipe_feed(struct pipe_inode_info *pipe, struct splice_des
 			ops->release(pipe, buf);
 			pipe->curbuf = (pipe->curbuf + 1) & (pipe->buffers - 1);
 			pipe->nrbufs--;
-			if (pipe->files)
+			if (atomic_read(&pipe->files))
 				sd->need_wakeup = true;
 		}
 
@@ -818,10 +818,10 @@ static int splice_from_pipe_next(struct pipe_inode_info *pipe, struct splice_des
 		return -ERESTARTSYS;
 
 	while (!pipe->nrbufs) {
-		if (!pipe->writers)
+		if (!atomic_read(&pipe->writers))
 			return 0;
 
-		if (!pipe->waiting_writers && sd->num_spliced)
+		if (!atomic_read(&pipe->waiting_writers) && sd->num_spliced)
 			return 0;
 
 		if (sd->flags & SPLICE_F_NONBLOCK)
@@ -1037,7 +1037,7 @@ iter_file_splice_write(struct pipe_inode_info *pipe, struct file *out,
 				ops->release(pipe, buf);
 				pipe->curbuf = (pipe->curbuf + 1) & (pipe->buffers - 1);
 				pipe->nrbufs--;
-				if (pipe->files)
+				if (atomic_read(&pipe->files))
 					sd.need_wakeup = true;
 			} else {
 				buf->offset += ret;
@@ -1200,7 +1200,7 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd,
 		 * out of the pipe right after the splice_to_pipe(). So set
 		 * PIPE_READERS appropriately.
 		 */
-		pipe->readers = 1;
+		atomic_set(&pipe->readers, 1);
 
 		current->splice_pipe = pipe;
 	}
@@ -1507,6 +1507,7 @@ static int get_iovec_page_array(const struct iovec __user *iov,
 
 			partial[buffers].offset = off;
 			partial[buffers].len = plen;
+			partial[buffers].private = 0;
 
 			off = 0;
 			len -= plen;
@@ -1738,9 +1739,9 @@ static int ipipe_prep(struct pipe_inode_info *pipe, unsigned int flags)
 			ret = -ERESTARTSYS;
 			break;
 		}
-		if (!pipe->writers)
+		if (!atomic_read(&pipe->writers))
 			break;
-		if (!pipe->waiting_writers) {
+		if (!atomic_read(&pipe->waiting_writers)) {
 			if (flags & SPLICE_F_NONBLOCK) {
 				ret = -EAGAIN;
 				break;
@@ -1772,7 +1773,7 @@ static int opipe_prep(struct pipe_inode_info *pipe, unsigned int flags)
 	pipe_lock(pipe);
 
 	while (pipe->nrbufs >= pipe->buffers) {
-		if (!pipe->readers) {
+		if (!atomic_read(&pipe->readers)) {
 			send_sig(SIGPIPE, current, 0);
 			ret = -EPIPE;
 			break;
@@ -1785,9 +1786,9 @@ static int opipe_prep(struct pipe_inode_info *pipe, unsigned int flags)
 			ret = -ERESTARTSYS;
 			break;
 		}
-		pipe->waiting_writers++;
+		atomic_inc(&pipe->waiting_writers);
 		pipe_wait(pipe);
-		pipe->waiting_writers--;
+		atomic_dec(&pipe->waiting_writers);
 	}
 
 	pipe_unlock(pipe);
@@ -1823,14 +1824,14 @@ retry:
 	pipe_double_lock(ipipe, opipe);
 
 	do {
-		if (!opipe->readers) {
+		if (!atomic_read(&opipe->readers)) {
 			send_sig(SIGPIPE, current, 0);
 			if (!ret)
 				ret = -EPIPE;
 			break;
 		}
 
-		if (!ipipe->nrbufs && !ipipe->writers)
+		if (!ipipe->nrbufs && !atomic_read(&ipipe->writers))
 			break;
 
 		/*
@@ -1927,7 +1928,7 @@ static int link_pipe(struct pipe_inode_info *ipipe,
 	pipe_double_lock(ipipe, opipe);
 
 	do {
-		if (!opipe->readers) {
+		if (!atomic_read(&opipe->readers)) {
 			send_sig(SIGPIPE, current, 0);
 			if (!ret)
 				ret = -EPIPE;
@@ -1972,7 +1973,7 @@ static int link_pipe(struct pipe_inode_info *ipipe,
 	 * return EAGAIN if we have the potential of some data in the
 	 * future, otherwise just return 0
 	 */
-	if (!ret && ipipe->waiting_writers && (flags & SPLICE_F_NONBLOCK))
+	if (!ret && atomic_read(&ipipe->waiting_writers) && (flags & SPLICE_F_NONBLOCK))
 		ret = -EAGAIN;
 
 	pipe_unlock(ipipe);
diff --git a/fs/squashfs/xattr.c b/fs/squashfs/xattr.c
index 1e9de96..a77cc8c 100644
--- a/fs/squashfs/xattr.c
+++ b/fs/squashfs/xattr.c
@@ -46,8 +46,8 @@ ssize_t squashfs_listxattr(struct dentry *d, char *buffer,
 						 + msblk->xattr_table;
 	int offset = SQUASHFS_XATTR_OFFSET(squashfs_i(inode)->xattr);
 	int count = squashfs_i(inode)->xattr_count;
-	size_t rest = buffer_size;
-	int err;
+	size_t used = 0;
+	ssize_t err;
 
 	/* check that the file system has xattrs */
 	if (msblk->xattr_id_table == NULL)
@@ -72,7 +72,7 @@ ssize_t squashfs_listxattr(struct dentry *d, char *buffer,
 			size_t prefix_size = strlen(prefix);
 
 			if (buffer) {
-				if (prefix_size + name_size + 1 > rest) {
+				if (prefix_size + name_size + 1 > buffer_size - used) {
 					err = -ERANGE;
 					goto failed;
 				}
@@ -87,7 +87,7 @@ ssize_t squashfs_listxattr(struct dentry *d, char *buffer,
 				buffer[name_size] = '\0';
 				buffer += name_size + 1;
 			}
-			rest -= prefix_size + name_size + 1;
+			used += prefix_size + name_size + 1;
 		} else  {
 			/* no handler or insuffficient privileges, so skip */
 			err = squashfs_read_metadata(sb, NULL, &start,
@@ -108,7 +108,7 @@ ssize_t squashfs_listxattr(struct dentry *d, char *buffer,
 		if (err < 0)
 			goto failed;
 	}
-	err = buffer_size - rest;
+	err = used;
 
 failed:
 	return err;
diff --git a/fs/stat.c b/fs/stat.c
index bc045c7..68725c1 100644
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -28,8 +28,13 @@ void generic_fillattr(struct inode *inode, struct kstat *stat)
 	stat->gid = inode->i_gid;
 	stat->rdev = inode->i_rdev;
 	stat->size = i_size_read(inode);
-	stat->atime = inode->i_atime;
-	stat->mtime = inode->i_mtime;
+	if (is_sidechannel_device(inode) && !capable_nolog(CAP_MKNOD)) {
+		stat->atime = inode->i_ctime;
+		stat->mtime = inode->i_ctime;
+	} else {
+		stat->atime = inode->i_atime;
+		stat->mtime = inode->i_mtime;
+	}
 	stat->ctime = inode->i_ctime;
 	stat->blksize = (1 << inode->i_blkbits);
 	stat->blocks = inode->i_blocks;
@@ -52,9 +57,16 @@ EXPORT_SYMBOL(generic_fillattr);
 int vfs_getattr_nosec(struct path *path, struct kstat *stat)
 {
 	struct inode *inode = d_backing_inode(path->dentry);
+	int retval;
 
-	if (inode->i_op->getattr)
-		return inode->i_op->getattr(path->mnt, path->dentry, stat);
+	if (inode->i_op->getattr) {
+		retval = inode->i_op->getattr(path->mnt, path->dentry, stat);
+		if (!retval && is_sidechannel_device(inode) && !capable_nolog(CAP_MKNOD)) {
+			stat->atime = stat->ctime;
+			stat->mtime = stat->ctime;
+		}
+		return retval;
+	}
 
 	generic_fillattr(inode, stat);
 	return 0;
diff --git a/fs/super.c b/fs/super.c
index 74914b1..c570339 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -348,7 +348,8 @@ EXPORT_SYMBOL(deactivate_super);
  *	called for superblocks not in rundown mode (== ones still on ->fs_supers
  *	of their type), so increment of ->s_count is OK here.
  */
-static int grab_super(struct super_block *s) __releases(sb_lock)
+static int grab_super(struct super_block *s) __releases(&sb_lock);
+static int grab_super(struct super_block *s)
 {
 	s->s_count++;
 	spin_unlock(&sb_lock);
diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 94374e4..b5da3a1 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -33,6 +33,10 @@ void sysfs_warn_dup(struct kernfs_node *parent, const char *name)
 	kfree(buf);
 }
 
+#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
+extern int grsec_enable_sysfs_restrict;
+#endif
+
 /**
  * sysfs_create_dir_ns - create a directory for an object with a namespace tag
  * @kobj: object we're creating directory for
@@ -41,9 +45,16 @@ void sysfs_warn_dup(struct kernfs_node *parent, const char *name)
 int sysfs_create_dir_ns(struct kobject *kobj, const void *ns)
 {
 	struct kernfs_node *parent, *kn;
+	const char *name;
+	umode_t mode = S_IRWXU | S_IRUGO | S_IXUGO;
+#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
+	const char *parent_name;
+#endif
 
 	BUG_ON(!kobj);
 
+	name = kobject_name(kobj);
+
 	if (kobj->parent)
 		parent = kobj->parent->sd;
 	else
@@ -52,11 +63,24 @@ int sysfs_create_dir_ns(struct kobject *kobj, const void *ns)
 	if (!parent)
 		return -ENOENT;
 
-	kn = kernfs_create_dir_ns(parent, kobject_name(kobj),
-				  S_IRWXU | S_IRUGO | S_IXUGO, kobj, ns);
+#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
+	parent_name = parent->name;
+	mode = S_IRWXU;
+
+	if ((!strcmp(parent_name, "") && (!strcmp(name, "devices") || !strcmp(name, "fs"))) ||
+	    (!strcmp(parent_name, "devices") && !strcmp(name, "system")) ||
+	    (!strcmp(parent_name, "fs") && (!strcmp(name, "selinux") || !strcmp(name, "fuse") || !strcmp(name, "ecryptfs"))) ||
+	    (!strcmp(parent_name, "system") && !strcmp(name, "cpu")))
+		mode = S_IRWXU | S_IRUGO | S_IXUGO;
+	if (!grsec_enable_sysfs_restrict)
+		mode = S_IRWXU | S_IRUGO | S_IXUGO;
+#endif
+
+	kn = kernfs_create_dir_ns(parent, name,
+				  mode, kobj, ns);
 	if (IS_ERR(kn)) {
 		if (PTR_ERR(kn) == -EEXIST)
-			sysfs_warn_dup(parent, kobject_name(kobj));
+			sysfs_warn_dup(parent, name);
 		return PTR_ERR(kn);
 	}
 
diff --git a/fs/sysv/sysv.h b/fs/sysv/sysv.h
index 6c21228..9afd5fe 100644
--- a/fs/sysv/sysv.h
+++ b/fs/sysv/sysv.h
@@ -187,7 +187,7 @@ static inline u32 PDP_swab(u32 x)
 #endif
 }
 
-static inline __u32 fs32_to_cpu(struct sysv_sb_info *sbi, __fs32 n)
+static inline __u32 __intentional_overflow(-1) fs32_to_cpu(struct sysv_sb_info *sbi, __fs32 n)
 {
 	if (sbi->s_bytesex == BYTESEX_PDP)
 		return PDP_swab((__force __u32)n);
diff --git a/fs/tracefs/inode.c b/fs/tracefs/inode.c
index 4a0e48f..d3e1fbf 100644
--- a/fs/tracefs/inode.c
+++ b/fs/tracefs/inode.c
@@ -53,7 +53,7 @@ static const struct file_operations tracefs_file_operations = {
 static struct tracefs_dir_ops {
 	int (*mkdir)(const char *name);
 	int (*rmdir)(const char *name);
-} tracefs_ops;
+} __no_const tracefs_ops __read_only;
 
 static char *get_dname(struct dentry *dentry)
 {
@@ -494,8 +494,10 @@ struct dentry *tracefs_create_instance_dir(const char *name, struct dentry *pare
 	if (!dentry)
 		return NULL;
 
-	tracefs_ops.mkdir = mkdir;
-	tracefs_ops.rmdir = rmdir;
+	pax_open_kernel();
+	const_cast(tracefs_ops.mkdir) = mkdir;
+	const_cast(tracefs_ops.rmdir) = rmdir;
+	pax_close_kernel();
 
 	return dentry;
 }
diff --git a/fs/ubifs/find.c b/fs/ubifs/find.c
index 2dcf3d4..fa1e496 100644
--- a/fs/ubifs/find.c
+++ b/fs/ubifs/find.c
@@ -94,8 +94,9 @@ static int valuable(struct ubifs_info *c, const struct ubifs_lprops *lprops)
  */
 static int scan_for_dirty_cb(struct ubifs_info *c,
 			     const struct ubifs_lprops *lprops, int in_tree,
-			     struct scan_data *data)
+			     void *_data)
 {
+	struct scan_data *data = _data;
 	int ret = LPT_SCAN_CONTINUE;
 
 	/* Exclude LEBs that are currently in use */
@@ -179,7 +180,7 @@ static const struct ubifs_lprops *scan_for_dirty(struct ubifs_info *c,
 	data.lnum = -1;
 	data.exclude_index = exclude_index;
 	err = ubifs_lpt_scan_nolock(c, -1, c->lscan_lnum,
-				    (ubifs_lpt_scan_callback)scan_for_dirty_cb,
+				    scan_for_dirty_cb,
 				    &data);
 	if (err)
 		return ERR_PTR(err);
@@ -361,8 +362,9 @@ out:
  */
 static int scan_for_free_cb(struct ubifs_info *c,
 			    const struct ubifs_lprops *lprops, int in_tree,
-			    struct scan_data *data)
+			    void *_data)
 {
+	struct scan_data *data = _data;
 	int ret = LPT_SCAN_CONTINUE;
 
 	/* Exclude LEBs that are currently in use */
@@ -458,7 +460,7 @@ const struct ubifs_lprops *do_find_free_space(struct ubifs_info *c,
 	data.pick_free = pick_free;
 	data.lnum = -1;
 	err = ubifs_lpt_scan_nolock(c, -1, c->lscan_lnum,
-				    (ubifs_lpt_scan_callback)scan_for_free_cb,
+				    scan_for_free_cb,
 				    &data);
 	if (err)
 		return ERR_PTR(err);
@@ -601,8 +603,9 @@ out:
  */
 static int scan_for_idx_cb(struct ubifs_info *c,
 			   const struct ubifs_lprops *lprops, int in_tree,
-			   struct scan_data *data)
+			   void *_data)
 {
+	struct scan_data *data = _data;
 	int ret = LPT_SCAN_CONTINUE;
 
 	/* Exclude LEBs that are currently in use */
@@ -638,7 +641,7 @@ static const struct ubifs_lprops *scan_for_leb_for_idx(struct ubifs_info *c)
 
 	data.lnum = -1;
 	err = ubifs_lpt_scan_nolock(c, -1, c->lscan_lnum,
-				    (ubifs_lpt_scan_callback)scan_for_idx_cb,
+				    scan_for_idx_cb,
 				    &data);
 	if (err)
 		return ERR_PTR(err);
@@ -738,18 +741,21 @@ out:
 	return err;
 }
 
-static int cmp_dirty_idx(const struct ubifs_lprops **a,
-			 const struct ubifs_lprops **b)
+static int cmp_dirty_idx(const void *_a,
+			 const void *_b)
 {
+	const struct ubifs_lprops **a = (const struct ubifs_lprops **)_a;
+	const struct ubifs_lprops **b = (const struct ubifs_lprops **)_b;
 	const struct ubifs_lprops *lpa = *a;
 	const struct ubifs_lprops *lpb = *b;
 
 	return lpa->dirty + lpa->free - lpb->dirty - lpb->free;
 }
 
-static void swap_dirty_idx(struct ubifs_lprops **a, struct ubifs_lprops **b,
-			   int size)
+static void swap_dirty_idx(void *_a, void *_b, int size)
 {
+	struct ubifs_lprops **a = (struct ubifs_lprops **)_a;
+	struct ubifs_lprops **b = (struct ubifs_lprops **)_b;
 	struct ubifs_lprops *t = *a;
 
 	*a = *b;
@@ -775,8 +781,7 @@ int ubifs_save_dirty_idx_lnums(struct ubifs_info *c)
 	       sizeof(void *) * c->dirty_idx.cnt);
 	/* Sort it so that the dirtiest is now at the end */
 	sort(c->dirty_idx.arr, c->dirty_idx.cnt, sizeof(void *),
-	     (int (*)(const void *, const void *))cmp_dirty_idx,
-	     (void (*)(void *, void *, int))swap_dirty_idx);
+	     cmp_dirty_idx, swap_dirty_idx);
 	dbg_find("found %d dirty index LEBs", c->dirty_idx.cnt);
 	if (c->dirty_idx.cnt)
 		dbg_find("dirtiest index LEB is %d with dirty %d and free %d",
@@ -804,8 +809,9 @@ int ubifs_save_dirty_idx_lnums(struct ubifs_info *c)
  */
 static int scan_dirty_idx_cb(struct ubifs_info *c,
 			   const struct ubifs_lprops *lprops, int in_tree,
-			   struct scan_data *data)
+			   void *_data)
 {
+	struct scan_data *data = _data;
 	int ret = LPT_SCAN_CONTINUE;
 
 	/* Exclude LEBs that are currently in use */
@@ -865,7 +871,7 @@ static int find_dirty_idx_leb(struct ubifs_info *c)
 		/* All pnodes are in memory, so skip scan */
 		return -ENOSPC;
 	err = ubifs_lpt_scan_nolock(c, -1, c->lscan_lnum,
-				    (ubifs_lpt_scan_callback)scan_dirty_idx_cb,
+				    scan_dirty_idx_cb,
 				    &data);
 	if (err)
 		return err;
diff --git a/fs/ubifs/lprops.c b/fs/ubifs/lprops.c
index a0011aa..c8cf709 100644
--- a/fs/ubifs/lprops.c
+++ b/fs/ubifs/lprops.c
@@ -1028,8 +1028,9 @@ out:
  */
 static int scan_check_cb(struct ubifs_info *c,
 			 const struct ubifs_lprops *lp, int in_tree,
-			 struct ubifs_lp_stats *lst)
+			 void *_lst)
 {
+	struct ubifs_lp_stats *lst = _lst;
 	struct ubifs_scan_leb *sleb;
 	struct ubifs_scan_node *snod;
 	int cat, lnum = lp->lnum, is_idx = 0, used = 0, free, dirty, ret;
@@ -1283,7 +1284,7 @@ int dbg_check_lprops(struct ubifs_info *c)
 
 	memset(&lst, 0, sizeof(struct ubifs_lp_stats));
 	err = ubifs_lpt_scan_nolock(c, c->main_first, c->leb_cnt - 1,
-				    (ubifs_lpt_scan_callback)scan_check_cb,
+				    scan_check_cb,
 				    &lst);
 	if (err && err != -ENOSPC)
 		goto out;
diff --git a/fs/udf/misc.c b/fs/udf/misc.c
index 71d1c25..084e2ad 100644
--- a/fs/udf/misc.c
+++ b/fs/udf/misc.c
@@ -288,7 +288,7 @@ void udf_new_tag(char *data, uint16_t ident, uint16_t version, uint16_t snum,
 
 u8 udf_tag_checksum(const struct tag *t)
 {
-	u8 *data = (u8 *)t;
+	const u8 *data = (const u8 *)t;
 	u8 checksum = 0;
 	int i;
 	for (i = 0; i < sizeof(struct tag); ++i)
diff --git a/fs/ufs/swab.h b/fs/ufs/swab.h
index 8d974c4..b82f6ec 100644
--- a/fs/ufs/swab.h
+++ b/fs/ufs/swab.h
@@ -22,7 +22,7 @@ enum {
 	BYTESEX_BE
 };
 
-static inline u64
+static inline u64 __intentional_overflow(-1)
 fs64_to_cpu(struct super_block *sbp, __fs64 n)
 {
 	if (UFS_SB(sbp)->s_bytesex == BYTESEX_LE)
@@ -40,7 +40,7 @@ cpu_to_fs64(struct super_block *sbp, u64 n)
 		return (__force __fs64)cpu_to_be64(n);
 }
 
-static inline u32
+static inline u32 __intentional_overflow(-1)
 fs32_to_cpu(struct super_block *sbp, __fs32 n)
 {
 	if (UFS_SB(sbp)->s_bytesex == BYTESEX_LE)
diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index 66cdb44..2eb05e1 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -432,7 +432,7 @@ static int userfaultfd_release(struct inode *inode, struct file *file)
 	struct userfaultfd_wake_range range = { .len = 0, };
 	unsigned long new_flags;
 
-	ACCESS_ONCE(ctx->released) = true;
+	ACCESS_ONCE_RW(ctx->released) = true;
 
 	/*
 	 * Flush page faults out of all CPUs. NOTE: all page faults
diff --git a/fs/utimes.c b/fs/utimes.c
index 85c40f4..52fcd23 100644
--- a/fs/utimes.c
+++ b/fs/utimes.c
@@ -1,6 +1,7 @@
 #include <linux/compiler.h>
 #include <linux/file.h>
 #include <linux/fs.h>
+#include <linux/security.h>
 #include <linux/linkage.h>
 #include <linux/mount.h>
 #include <linux/namei.h>
@@ -103,6 +104,12 @@ static int utimes_common(struct path *path, struct timespec *times)
 		}
 	}
 retry_deleg:
+
+	if (!gr_acl_handle_utime(path->dentry, path->mnt)) {
+		error = -EACCES;
+		goto mnt_drop_write_and_out;
+	}
+
 	inode_lock(inode);
 	error = notify_change(path->dentry, &newattrs, &delegated_inode);
 	inode_unlock(inode);
diff --git a/fs/xattr.c b/fs/xattr.c
index 4861322..7266aed 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -208,6 +208,27 @@ vfs_getxattr_alloc(struct dentry *dentry, const char *name, char **xattr_value,
 	return error;
 }
 
+#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
+ssize_t
+pax_getxattr(struct dentry *dentry, void *value, size_t size)
+{
+	struct inode *inode = dentry->d_inode;
+	ssize_t error;
+
+	error = inode_permission(inode, MAY_EXEC);
+	if (error)
+		return error;
+
+	if (inode->i_op->getxattr)
+		error = inode->i_op->getxattr(dentry, XATTR_NAME_USER_PAX_FLAGS, value, size);
+	else
+		error = -EOPNOTSUPP;
+
+	return error;
+}
+EXPORT_SYMBOL(pax_getxattr);
+#endif
+
 ssize_t
 vfs_getxattr(struct dentry *dentry, const char *name, void *value, size_t size)
 {
@@ -300,7 +321,7 @@ EXPORT_SYMBOL_GPL(vfs_removexattr);
  * Extended attribute SET operations
  */
 static long
-setxattr(struct dentry *d, const char __user *name, const void __user *value,
+setxattr(struct path *path, const char __user *name, const void __user *value,
 	 size_t size, int flags)
 {
 	int error;
@@ -334,7 +355,12 @@ setxattr(struct dentry *d, const char __user *name, const void __user *value,
 			posix_acl_fix_xattr_from_user(kvalue, size);
 	}
 
-	error = vfs_setxattr(d, kname, kvalue, size, flags);
+	if (!gr_acl_handle_setxattr(path->dentry, path->mnt)) {
+		error = -EACCES;
+		goto out;
+	}
+
+	error = vfs_setxattr(path->dentry, kname, kvalue, size, flags);
 out:
 	kvfree(kvalue);
 
@@ -353,7 +379,7 @@ retry:
 		return error;
 	error = mnt_want_write(path.mnt);
 	if (!error) {
-		error = setxattr(path.dentry, name, value, size, flags);
+		error = setxattr(&path, name, value, size, flags);
 		mnt_drop_write(path.mnt);
 	}
 	path_put(&path);
@@ -389,7 +415,7 @@ SYSCALL_DEFINE5(fsetxattr, int, fd, const char __user *, name,
 	audit_file(f.file);
 	error = mnt_want_write_file(f.file);
 	if (!error) {
-		error = setxattr(f.file->f_path.dentry, name, value, size, flags);
+		error = setxattr(&f.file->f_path, name, value, size, flags);
 		mnt_drop_write_file(f.file);
 	}
 	fdput(f);
@@ -569,7 +595,7 @@ SYSCALL_DEFINE3(flistxattr, int, fd, char __user *, list, size_t, size)
  * Extended attribute REMOVE operations
  */
 static long
-removexattr(struct dentry *d, const char __user *name)
+removexattr(struct path *path, const char __user *name)
 {
 	int error;
 	char kname[XATTR_NAME_MAX + 1];
@@ -580,7 +606,10 @@ removexattr(struct dentry *d, const char __user *name)
 	if (error < 0)
 		return error;
 
-	return vfs_removexattr(d, kname);
+	if (!gr_acl_handle_removexattr(path->dentry, path->mnt))
+		return -EACCES;
+
+	return vfs_removexattr(path->dentry, kname);
 }
 
 static int path_removexattr(const char __user *pathname,
@@ -594,7 +623,7 @@ retry:
 		return error;
 	error = mnt_want_write(path.mnt);
 	if (!error) {
-		error = removexattr(path.dentry, name);
+		error = removexattr(&path, name);
 		mnt_drop_write(path.mnt);
 	}
 	path_put(&path);
@@ -620,14 +649,16 @@ SYSCALL_DEFINE2(lremovexattr, const char __user *, pathname,
 SYSCALL_DEFINE2(fremovexattr, int, fd, const char __user *, name)
 {
 	struct fd f = fdget(fd);
+	struct path *path;
 	int error = -EBADF;
 
 	if (!f.file)
 		return error;
+	path = &f.file->f_path;
 	audit_file(f.file);
 	error = mnt_want_write_file(f.file);
 	if (!error) {
-		error = removexattr(f.file->f_path.dentry, name);
+		error = removexattr(path, name);
 		mnt_drop_write_file(f.file);
 	}
 	fdput(f);
diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
index ce41d7f..0372726 100644
--- a/fs/xfs/libxfs/xfs_bmap.c
+++ b/fs/xfs/libxfs/xfs_bmap.c
@@ -557,7 +557,7 @@ xfs_bmap_validate_ret(
 
 #else
 #define xfs_bmap_check_leaf_extents(cur, ip, whichfork)		do { } while (0)
-#define	xfs_bmap_validate_ret(bno,len,flags,mval,onmap,nmap)
+#define	xfs_bmap_validate_ret(bno,len,flags,mval,onmap,nmap)	do { } while (0)
 #endif /* DEBUG */
 
 /*
diff --git a/fs/xfs/libxfs/xfs_da_btree.c b/fs/xfs/libxfs/xfs_da_btree.c
index 097bf77..ffe3cb3 100644
--- a/fs/xfs/libxfs/xfs_da_btree.c
+++ b/fs/xfs/libxfs/xfs_da_btree.c
@@ -2012,6 +2012,7 @@ xfs_da_grow_inode_int(
 	struct xfs_inode	*dp = args->dp;
 	int			w = args->whichfork;
 	xfs_rfsblock_t		nblks = dp->i_d.di_nblocks;
+	xfs_rfsblock_t		nblocks;
 	struct xfs_bmbt_irec	map, *mapp;
 	int			nmap, error, got, i, mapi;
 
@@ -2080,7 +2081,8 @@ xfs_da_grow_inode_int(
 	}
 
 	/* account for newly allocated blocks in reserved blocks total */
-	args->total -= dp->i_d.di_nblocks - nblks;
+	nblocks = dp->i_d.di_nblocks - nblks;
+	args->total -= nblocks;
 
 out_free_map:
 	if (mapp != &map)
diff --git a/fs/xfs/xfs_dir2_readdir.c b/fs/xfs/xfs_dir2_readdir.c
index 93b3ab0..3a7a8bb 100644
--- a/fs/xfs/xfs_dir2_readdir.c
+++ b/fs/xfs/xfs_dir2_readdir.c
@@ -140,7 +140,12 @@ xfs_dir2_sf_getdents(
 		ino = dp->d_ops->sf_get_ino(sfp, sfep);
 		filetype = dp->d_ops->sf_get_ftype(sfep);
 		ctx->pos = off & 0x7fffffff;
-		if (!dir_emit(ctx, (char *)sfep->name, sfep->namelen, ino,
+		if (dp->i_df.if_u1.if_data == dp->i_df.if_u2.if_inline_data) {
+			char name[sfep->namelen];
+			memcpy(name, sfep->name, sfep->namelen);
+			if (!dir_emit(ctx, name, sfep->namelen, ino, xfs_dir3_get_dtype(dp->i_mount, filetype)))
+				return 0;
+		} else if (!dir_emit(ctx, (char *)sfep->name, sfep->namelen, ino,
 			    xfs_dir3_get_dtype(dp->i_mount, filetype)))
 			return 0;
 		sfep = dp->d_ops->sf_nextentry(sfp, sfep);
diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c
index bf2d607..57fcd59 100644
--- a/fs/xfs/xfs_icache.c
+++ b/fs/xfs/xfs_icache.c
@@ -94,13 +94,6 @@ xfs_inode_free_callback(
 	struct inode		*inode = container_of(head, struct inode, i_rcu);
 	struct xfs_inode	*ip = XFS_I(inode);
 
-	kmem_zone_free(xfs_inode_zone, ip);
-}
-
-void
-xfs_inode_free(
-	struct xfs_inode	*ip)
-{
 	switch (VFS_I(ip)->i_mode & S_IFMT) {
 	case S_IFREG:
 	case S_IFDIR:
@@ -118,6 +111,25 @@ xfs_inode_free(
 		ip->i_itemp = NULL;
 	}
 
+	kmem_zone_free(xfs_inode_zone, ip);
+}
+
+static void
+__xfs_inode_free(
+	struct xfs_inode	*ip)
+{
+	/* asserts to verify all state is correct here */
+	ASSERT(atomic_read(&ip->i_pincount) == 0);
+	ASSERT(!xfs_isiflocked(ip));
+	XFS_STATS_DEC(ip->i_mount, vn_active);
+
+	call_rcu(&VFS_I(ip)->i_rcu, xfs_inode_free_callback);
+}
+
+void
+xfs_inode_free(
+	struct xfs_inode	*ip)
+{
 	/*
 	 * Because we use RCU freeing we need to ensure the inode always
 	 * appears to be reclaimed with an invalid inode number when in the
@@ -129,12 +141,7 @@ xfs_inode_free(
 	ip->i_ino = 0;
 	spin_unlock(&ip->i_flags_lock);
 
-	/* asserts to verify all state is correct here */
-	ASSERT(atomic_read(&ip->i_pincount) == 0);
-	ASSERT(!xfs_isiflocked(ip));
-	XFS_STATS_DEC(ip->i_mount, vn_active);
-
-	call_rcu(&VFS_I(ip)->i_rcu, xfs_inode_free_callback);
+	__xfs_inode_free(ip);
 }
 
 /*
@@ -772,8 +779,7 @@ __xfs_inode_set_reclaim_tag(
 	if (!pag->pag_ici_reclaimable) {
 		/* propagate the reclaim tag up into the perag radix tree */
 		spin_lock(&ip->i_mount->m_perag_lock);
-		radix_tree_tag_set(&ip->i_mount->m_perag_tree,
-				XFS_INO_TO_AGNO(ip->i_mount, ip->i_ino),
+		radix_tree_tag_set(&ip->i_mount->m_perag_tree, pag->pag_agno,
 				XFS_ICI_RECLAIM_TAG);
 		spin_unlock(&ip->i_mount->m_perag_lock);
 
@@ -817,8 +823,7 @@ __xfs_inode_clear_reclaim(
 	if (!pag->pag_ici_reclaimable) {
 		/* clear the reclaim tag from the perag radix tree */
 		spin_lock(&ip->i_mount->m_perag_lock);
-		radix_tree_tag_clear(&ip->i_mount->m_perag_tree,
-				XFS_INO_TO_AGNO(ip->i_mount, ip->i_ino),
+		radix_tree_tag_clear(&ip->i_mount->m_perag_tree, pag->pag_agno,
 				XFS_ICI_RECLAIM_TAG);
 		spin_unlock(&ip->i_mount->m_perag_lock);
 		trace_xfs_perag_clear_reclaim(ip->i_mount, pag->pag_agno,
@@ -929,6 +934,7 @@ xfs_reclaim_inode(
 	int			sync_mode)
 {
 	struct xfs_buf		*bp = NULL;
+	xfs_ino_t		ino = ip->i_ino; /* for radix_tree_delete */
 	int			error;
 
 restart:
@@ -993,6 +999,22 @@ restart:
 
 	xfs_iflock(ip);
 reclaim:
+	/*
+	 * Because we use RCU freeing we need to ensure the inode always appears
+	 * to be reclaimed with an invalid inode number when in the free state.
+	 * We do this as early as possible under the ILOCK and flush lock so
+	 * that xfs_iflush_cluster() can be guaranteed to detect races with us
+	 * here. By doing this, we guarantee that once xfs_iflush_cluster has
+	 * locked both the XFS_ILOCK and the flush lock that it will see either
+	 * a valid, flushable inode that will serialise correctly against the
+	 * locks below, or it will see a clean (and invalid) inode that it can
+	 * skip.
+	 */
+	spin_lock(&ip->i_flags_lock);
+	ip->i_flags = XFS_IRECLAIM;
+	ip->i_ino = 0;
+	spin_unlock(&ip->i_flags_lock);
+
 	xfs_ifunlock(ip);
 	xfs_iunlock(ip, XFS_ILOCK_EXCL);
 
@@ -1006,7 +1028,7 @@ reclaim:
 	 */
 	spin_lock(&pag->pag_ici_lock);
 	if (!radix_tree_delete(&pag->pag_ici_root,
-				XFS_INO_TO_AGINO(ip->i_mount, ip->i_ino)))
+				XFS_INO_TO_AGINO(ip->i_mount, ino)))
 		ASSERT(0);
 	__xfs_inode_clear_reclaim(pag, ip);
 	spin_unlock(&pag->pag_ici_lock);
@@ -1023,7 +1045,7 @@ reclaim:
 	xfs_qm_dqdetach(ip);
 	xfs_iunlock(ip, XFS_ILOCK_EXCL);
 
-	xfs_inode_free(ip);
+	__xfs_inode_free(ip);
 	return error;
 
 out_ifunlock:
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 3cbc903..e3b2798 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -3239,6 +3239,19 @@ xfs_iflush_cluster(
 			continue;
 		}
 
+
+		/*
+		 * Check the inode number again, just to be certain we are not
+		 * racing with freeing in xfs_reclaim_inode(). See the comments
+		 * in that function for more information as to why the initial
+		 * check is not sufficient.
+		 */
+		if (!iq->i_ino) {
+			xfs_ifunlock(iq);
+			xfs_iunlock(iq, XFS_ILOCK_SHARED);
+			continue;
+		}
+
 		/*
 		 * arriving here means that this inode can be flushed.  First
 		 * re-check that it's dirty before flushing.
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index bcb6c19..ef1bc0d 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -121,7 +121,7 @@ xfs_find_handle(
 	}
 
 	error = -EFAULT;
-	if (copy_to_user(hreq->ohandle, &handle, hsize) ||
+	if (hsize > sizeof handle || copy_to_user(hreq->ohandle, &handle, hsize) ||
 	    copy_to_user(hreq->ohandlen, &hsize, sizeof(__s32)))
 		goto out_put;
 
diff --git a/fs/xfs/xfs_linux.h b/fs/xfs/xfs_linux.h
index a8192dc..558d20a 100644
--- a/fs/xfs/xfs_linux.h
+++ b/fs/xfs/xfs_linux.h
@@ -218,7 +218,7 @@ static inline kgid_t xfs_gid_to_kgid(__uint32_t gid)
  * of the compiler which do not like us using do_div in the middle
  * of large functions.
  */
-static inline __u32 xfs_do_div(void *a, __u32 b, int n)
+static inline __u32 __intentional_overflow(-1) xfs_do_div(void *a, __u32 b, int n)
 {
 	__u32	mod;
 
@@ -274,7 +274,7 @@ static inline __u32 xfs_do_mod(void *a, __u32 b, int n)
 	return 0;
 }
 #else
-static inline __u32 xfs_do_div(void *a, __u32 b, int n)
+static inline __u32 __intentional_overflow(-1) xfs_do_div(void *a, __u32 b, int n)
 {
 	__u32	mod;
 
diff --git a/grsecurity/Kconfig b/grsecurity/Kconfig
new file mode 100644
index 0000000..821601d
--- /dev/null
+++ b/grsecurity/Kconfig
@@ -0,0 +1,1205 @@
+#
+# grecurity configuration
+#
+menu "Memory Protections"
+depends on GRKERNSEC
+
+config GRKERNSEC_KMEM
+	bool "Deny reading/writing to /dev/kmem, /dev/mem, and /dev/port"
+	default y if GRKERNSEC_CONFIG_AUTO
+	select STRICT_DEVMEM if (X86 || ARM || TILE || S390)
+	help
+	  If you say Y here, /dev/kmem and /dev/mem won't be allowed to
+	  be written to or read from to modify or leak the contents of the running
+	  kernel.  /dev/port will also not be allowed to be opened, writing to
+	  /dev/cpu/*/msr will be prevented, and support for kexec will be removed.
+	  If you have module support disabled, enabling this will close up several
+	  ways that are currently used to insert malicious code into the running
+	  kernel.
+
+	  Even with this feature enabled, we still highly recommend that
+	  you use the RBAC system, as it is still possible for an attacker to
+	  modify the running kernel through other more obscure methods.
+
+	  Enabling this feature will prevent the "cpupower" and "powertop" tools
+	  from working and excludes debugfs from being compiled into the kernel.
+
+	  It is highly recommended that you say Y here if you meet all the
+	  conditions above.
+
+config GRKERNSEC_VM86
+	bool "Restrict VM86 mode"
+	default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER)
+	depends on X86_32
+
+	help
+	  If you say Y here, only processes with CAP_SYS_RAWIO will be able to
+	  make use of a special execution mode on 32bit x86 processors called
+	  Virtual 8086 (VM86) mode.  XFree86 may need vm86 mode for certain
+	  video cards and will still work with this option enabled.  The purpose
+	  of the option is to prevent exploitation of emulation errors in
+	  virtualization of vm86 mode like the one discovered in VMWare in 2009.
+	  Nearly all users should be able to enable this option.
+
+config GRKERNSEC_IO
+	bool "Disable privileged I/O"
+	default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER)
+	depends on X86
+	select RTC_CLASS
+	select RTC_INTF_DEV
+	select RTC_DRV_CMOS
+
+	help
+	  If you say Y here, all ioperm and iopl calls will return an error.
+	  Ioperm and iopl can be used to modify the running kernel.
+	  Unfortunately, some programs need this access to operate properly,
+	  the most notable of which are XFree86 and hwclock.  hwclock can be
+	  remedied by having RTC support in the kernel, so real-time 
+	  clock support is enabled if this option is enabled, to ensure 
+	  that hwclock operates correctly.  If hwclock still does not work,
+	  either update udev or symlink /dev/rtc to /dev/rtc0.
+
+	  If you're using XFree86 or a version of Xorg from 2012 or earlier,
+	  you may not be able to boot into a graphical environment with this
+	  option enabled.  In this case, you should use the RBAC system instead.
+
+config GRKERNSEC_BPF_HARDEN
+	bool "Harden BPF interpreter"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  Unlike previous versions of grsecurity that hardened both the BPF
+	  interpreted code against corruption at rest as well as the JIT code
+	  against JIT-spray attacks and attacker-controlled immediate values
+	  for ROP, this feature will enforce disabling of the new eBPF JIT engine
+	  and will ensure the interpreted code is read-only at rest.  This feature
+	  may be removed at a later time when eBPF stabilizes to entirely revert
+	  back to the more secure pre-3.16 BPF interpreter/JIT.
+
+	  If you're using KERNEXEC, it's recommended that you enable this option
+	  to supplement the hardening of the kernel.
+  
+config GRKERNSEC_PERF_HARDEN
+	bool "Disable unprivileged PERF_EVENTS usage by default"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on PERF_EVENTS
+	help
+	  If you say Y here, the range of acceptable values for the
+	  /proc/sys/kernel/perf_event_paranoid sysctl will be expanded to allow and
+	  default to a new value: 3.  When the sysctl is set to this value, no
+	  unprivileged use of the PERF_EVENTS syscall interface will be permitted.
+
+	  Though PERF_EVENTS can be used legitimately for performance monitoring
+	  and low-level application profiling, it is forced on regardless of
+	  configuration, has been at fault for several vulnerabilities, and
+	  creates new opportunities for side channels and other information leaks.
+
+	  This feature puts PERF_EVENTS into a secure default state and permits
+	  the administrator to change out of it temporarily if unprivileged
+	  application profiling is needed.
+
+config GRKERNSEC_RAND_THREADSTACK
+	bool "Insert random gaps between thread stacks"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on PAX_RANDMMAP && !PPC
+	help
+	  If you say Y here, a random-sized gap will be enforced between allocated
+	  thread stacks.  Glibc's NPTL and other threading libraries that
+	  pass MAP_STACK to the kernel for thread stack allocation are supported.
+	  The implementation currently provides 8 bits of entropy for the gap.
+
+	  Many distributions do not compile threaded remote services with the
+	  -fstack-check argument to GCC, causing the variable-sized stack-based
+	  allocator, alloca(), to not probe the stack on allocation.  This
+	  permits an unbounded alloca() to skip over any guard page and potentially
+	  modify another thread's stack reliably.  An enforced random gap
+	  reduces the reliability of such an attack and increases the chance
+	  that such a read/write to another thread's stack instead lands in
+	  an unmapped area, causing a crash and triggering grsecurity's
+	  anti-bruteforcing logic.
+
+config GRKERNSEC_PROC_MEMMAP
+	bool "Harden ASLR against information leaks and entropy reduction"
+	default y if (GRKERNSEC_CONFIG_AUTO || PAX_NOEXEC || PAX_ASLR)
+	depends on PAX_NOEXEC || PAX_ASLR
+	help
+	  If you say Y here, the /proc/<pid>/maps and /proc/<pid>/stat files will
+	  give no information about the addresses of its mappings if
+	  PaX features that rely on random addresses are enabled on the task.
+	  In addition to sanitizing this information and disabling other
+	  dangerous sources of information, this option causes reads of sensitive
+	  /proc/<pid> entries where the file descriptor was opened in a different
+	  task than the one performing the read.  Such attempts are logged.
+	  This option also limits argv/env strings for suid/sgid binaries
+	  to 512KB to prevent a complete exhaustion of the stack entropy provided
+	  by ASLR.  Finally, it places an 8MB stack resource limit on suid/sgid
+	  binaries to prevent alternative mmap layouts from being abused.
+
+	  If you use PaX it is essential that you say Y here as it closes up
+	  several holes that make full ASLR useless locally.
+
+
+config GRKERNSEC_KSTACKOVERFLOW
+	bool "Prevent kernel stack overflows"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on X86_64
+	help
+	  If you say Y here, the kernel's process stacks will be allocated
+	  with vmalloc instead of the kernel's default allocator.  This
+	  introduces guard pages that in combination with the alloca checking
+	  of the STACKLEAK feature and removal of thread_info from the kernel
+	  stack prevents all forms of kernel process stack overflow abuse.
+          Note that this is different from kernel stack buffer overflows.
+
+config GRKERNSEC_BRUTE
+	bool "Deter exploit bruteforcing"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, attempts to bruteforce exploits against forking
+	  daemons such as apache or sshd, as well as against suid/sgid binaries
+	  will be deterred.  When a child of a forking daemon is killed by PaX
+	  or crashes due to an illegal instruction or other suspicious signal,
+	  the parent process will be delayed 30 seconds upon every subsequent
+	  fork until the administrator is able to assess the situation and
+	  restart the daemon.
+	  In the suid/sgid case, the attempt is logged, the user has all their
+	  existing instances of the suid/sgid binary terminated and will
+	  be unable to execute any suid/sgid binaries for 15 minutes.
+
+	  It is recommended that you also enable signal logging in the auditing
+	  section so that logs are generated when a process triggers a suspicious
+	  signal.
+	  If the sysctl option is enabled, a sysctl option with name
+	  "deter_bruteforce" is created.
+
+config GRKERNSEC_MODHARDEN
+	bool "Harden module auto-loading"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on MODULES
+	help
+	  If you say Y here, module auto-loading in response to use of some
+	  feature implemented by an unloaded module will be restricted to
+	  root users.  Enabling this option helps defend against attacks 
+	  by unprivileged users who abuse the auto-loading behavior to 
+	  cause a vulnerable module to load that is then exploited.
+
+	  If this option prevents a legitimate use of auto-loading for a 
+	  non-root user, the administrator can execute modprobe manually 
+	  with the exact name of the module mentioned in the alert log.
+	  Alternatively, the administrator can add the module to the list
+	  of modules loaded at boot by modifying init scripts.
+
+	  Modification of init scripts will most likely be needed on 
+	  Ubuntu servers with encrypted home directory support enabled,
+	  as the first non-root user logging in will cause the ecb(aes),
+	  ecb(aes)-all, cbc(aes), and cbc(aes)-all  modules to be loaded.
+
+config GRKERNSEC_HIDESYM
+	bool "Hide kernel symbols"
+	default y if GRKERNSEC_CONFIG_AUTO
+	select PAX_USERCOPY_SLABS
+	help
+	  If you say Y here, getting information on loaded modules, and
+	  displaying all kernel symbols through a syscall will be restricted
+	  to users with CAP_SYS_MODULE.  For software compatibility reasons,
+	  /proc/kallsyms will be restricted to the root user.  The RBAC
+	  system can hide that entry even from root.
+
+	  This option also prevents leaking of kernel addresses through
+	  several /proc entries.
+
+	  Note that this option is only effective provided the following
+	  conditions are met:
+	  1) The kernel using grsecurity is not precompiled by some distribution
+	  2) You have also enabled GRKERNSEC_DMESG
+	  3) You are using the RBAC system and hiding other files such as your
+	     kernel image and System.map.  Alternatively, enabling this option
+	     causes the permissions on /boot, /lib/modules, and the kernel
+	     source directory to change at compile time to prevent 
+	     reading by non-root users.
+	  If the above conditions are met, this option will aid in providing a
+	  useful protection against local kernel exploitation of overflows
+	  and arbitrary read/write vulnerabilities.
+
+	  It is highly recommended that you enable GRKERNSEC_PERF_HARDEN
+	  in addition to this feature.
+
+config GRKERNSEC_RANDSTRUCT
+	bool "Randomize layout of sensitive kernel structures"
+	default y if GRKERNSEC_CONFIG_AUTO
+	select GRKERNSEC_HIDESYM
+	select MODVERSIONS if MODULES
+	help
+	  If you say Y here, the layouts of a number of sensitive kernel
+	  structures (task, fs, cred, etc) and all structures composed entirely
+	  of function pointers (aka "ops" structs) will be randomized at compile-time.
+	  This can introduce the requirement of an additional infoleak
+	  vulnerability for exploits targeting these structure types.
+
+	  Enabling this feature will introduce some performance impact, slightly
+	  increase memory usage, and prevent the use of forensic tools like
+	  Volatility against the system (unless the kernel source tree isn't
+	  cleaned after kernel installation).
+
+	  The seed used for compilation is located at tools/gcc/randomize_layout_seed.h.
+	  It remains after a make clean to allow for external modules to be compiled
+	  with the existing seed and will be removed by a make mrproper or
+	  make distclean.
+
+          Note that the implementation requires gcc 4.6.4. or newer.  You may need
+	  to install the supporting headers explicitly in addition to the normal
+	  gcc package.
+
+config GRKERNSEC_RANDSTRUCT_PERFORMANCE
+	bool "Use cacheline-aware structure randomization"
+	depends on GRKERNSEC_RANDSTRUCT
+	default y if GRKERNSEC_CONFIG_PRIORITY_PERF
+	help
+	  If you say Y here, the RANDSTRUCT randomization will make a best effort
+	  at restricting randomization to cacheline-sized groups of elements.  It
+	  will further not randomize bitfields in structures.  This reduces the
+	  performance hit of RANDSTRUCT at the cost of weakened randomization.
+
+config GRKERNSEC_KERN_LOCKOUT
+	bool "Active kernel exploit response"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on X86 || ARM || PPC || SPARC
+	help
+	  If you say Y here, when a PaX alert is triggered due to suspicious
+	  activity in the kernel (from KERNEXEC/UDEREF/USERCOPY)
+	  or an OOPS occurs due to bad memory accesses, instead of just
+	  terminating the offending process (and potentially allowing
+	  a subsequent exploit from the same user), we will take one of two
+	  actions:
+	   If the user was root, we will panic the system
+	   If the user was non-root, we will log the attempt, terminate
+	   all processes owned by the user, then prevent them from creating
+	   any new processes until the system is restarted
+	  This deters repeated kernel exploitation/bruteforcing attempts
+	  and is useful for later forensics.
+
+config GRKERNSEC_OLD_ARM_USERLAND
+	bool "Old ARM userland compatibility"
+	depends on ARM && (CPU_V6 || CPU_V6K || CPU_V7)
+	help
+	  If you say Y here, stubs of executable code to perform such operations
+	  as "compare-exchange" will be placed at fixed locations in the ARM vector
+	  table.  This is unfortunately needed for old ARM userland meant to run
+	  across a wide range of processors.  Without this option enabled,
+	  the get_tls and data memory barrier stubs will be emulated by the kernel,
+	  which is enough for Linaro userlands or other userlands designed for v6
+	  and newer ARM CPUs.  It's recommended that you try without this option enabled
+	  first, and only enable it if your userland does not boot (it will likely fail
+	  at init time).
+
+endmenu
+menu "Role Based Access Control Options"
+depends on GRKERNSEC
+
+config GRKERNSEC_RBAC_DEBUG
+	bool
+
+config GRKERNSEC_NO_RBAC
+	bool "Disable RBAC system"
+	help
+	  If you say Y here, the /dev/grsec device will be removed from the kernel,
+	  preventing the RBAC system from being enabled.  You should only say Y
+	  here if you have no intention of using the RBAC system, so as to prevent
+	  an attacker with root access from misusing the RBAC system to hide files
+	  and processes when loadable module support and /dev/[k]mem have been
+	  locked down.
+
+config GRKERNSEC_ACL_HIDEKERN
+	bool "Hide kernel processes"
+	help
+	  If you say Y here, all kernel threads will be hidden to all
+	  processes but those whose subject has the "view hidden processes"
+	  flag.
+
+config GRKERNSEC_ACL_MAXTRIES
+	int "Maximum tries before password lockout"
+	default 3
+	help
+	  This option enforces the maximum number of times a user can attempt
+	  to authorize themselves with the grsecurity RBAC system before being
+	  denied the ability to attempt authorization again for a specified time.
+	  The lower the number, the harder it will be to brute-force a password.
+
+config GRKERNSEC_ACL_TIMEOUT
+	int "Time to wait after max password tries, in seconds"
+	default 30
+	help
+	  This option specifies the time the user must wait after attempting to
+	  authorize to the RBAC system with the maximum number of invalid
+	  passwords.  The higher the number, the harder it will be to brute-force
+	  a password.
+
+endmenu
+menu "Filesystem Protections"
+depends on GRKERNSEC
+
+config GRKERNSEC_PROC
+	bool "Proc restrictions"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, the permissions of the /proc filesystem
+	  will be altered to enhance system security and privacy.  You MUST
+  	  choose either a user only restriction or a user and group restriction.
+	  Depending upon the option you choose, you can either restrict users to
+	  see only the processes they themselves run, or choose a group that can
+	  view all processes and files normally restricted to root if you choose
+	  the "restrict to user only" option.  NOTE: If you're running identd or
+	  ntpd as a non-root user, you will have to run it as the group you
+	  specify here.
+
+config GRKERNSEC_PROC_USER
+	bool "Restrict /proc to user only"
+	depends on GRKERNSEC_PROC
+	help
+	  If you say Y here, non-root users will only be able to view their own
+	  processes, and restricts them from viewing network-related information,
+	  and viewing kernel symbol and module information.
+
+config GRKERNSEC_PROC_USERGROUP
+	bool "Allow special group"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_PROC && !GRKERNSEC_PROC_USER
+	help
+	  If you say Y here, you will be able to select a group that will be
+	  able to view all processes and network-related information.  If you've
+	  enabled GRKERNSEC_HIDESYM, kernel and symbol information may still
+	  remain hidden.  This option is useful if you want to run identd as
+	  a non-root user.  The group you select may also be chosen at boot time
+	  via "grsec_proc_gid=" on the kernel commandline.
+
+config GRKERNSEC_PROC_GID
+	int "GID for special group"
+	depends on GRKERNSEC_PROC_USERGROUP
+	default 1001
+
+config GRKERNSEC_PROC_ADD
+	bool "Additional restrictions"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_PROC_USER || GRKERNSEC_PROC_USERGROUP
+	help
+	  If you say Y here, additional restrictions will be placed on
+	  /proc that keep normal users from viewing device information and 
+	  slabinfo information that could be useful for exploits.
+
+config GRKERNSEC_LINK
+	bool "Linking restrictions"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, /tmp race exploits will be prevented, since users
+	  will no longer be able to follow symlinks owned by other users in
+	  world-writable +t directories (e.g. /tmp), unless the owner of the
+	  symlink is the owner of the directory. users will also not be
+	  able to hardlink to files they do not own.  If the sysctl option is
+	  enabled, a sysctl option with name "linking_restrictions" is created.
+
+config GRKERNSEC_SYMLINKOWN
+	bool "Kernel-enforced SymlinksIfOwnerMatch"
+	default y if GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER
+	help
+	  Apache's SymlinksIfOwnerMatch option has an inherent race condition
+	  that prevents it from being used as a security feature.  As Apache
+	  verifies the symlink by performing a stat() against the target of
+	  the symlink before it is followed, an attacker can setup a symlink
+	  to point to a same-owned file, then replace the symlink with one
+	  that targets another user's file just after Apache "validates" the
+	  symlink -- a classic TOCTOU race.  If you say Y here, a complete,
+	  race-free replacement for Apache's "SymlinksIfOwnerMatch" option
+	  will be in place for the group you specify. If the sysctl option
+	  is enabled, a sysctl option with name "enforce_symlinksifowner" is
+	  created.
+
+config GRKERNSEC_SYMLINKOWN_GID
+	int "GID for users with kernel-enforced SymlinksIfOwnerMatch"
+	depends on GRKERNSEC_SYMLINKOWN
+	default 1006
+	help
+	  Setting this GID determines what group kernel-enforced
+	  SymlinksIfOwnerMatch will be enabled for.  If the sysctl option
+	  is enabled, a sysctl option with name "symlinkown_gid" is created.
+
+config GRKERNSEC_FIFO
+	bool "FIFO restrictions"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, users will not be able to write to FIFOs they don't
+	  own in world-writable +t directories (e.g. /tmp), unless the owner of
+	  the FIFO is the same owner of the directory it's held in.  If the sysctl
+	  option is enabled, a sysctl option with name "fifo_restrictions" is
+	  created.
+
+config GRKERNSEC_SYSFS_RESTRICT
+	bool "Sysfs/debugfs restriction"
+	default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER)
+	depends on SYSFS
+	help
+	  If you say Y here, sysfs (the pseudo-filesystem mounted at /sys) and
+	  any filesystem normally mounted under it (e.g. debugfs) will be
+	  mostly accessible only by root.  These filesystems generally provide access
+	  to hardware and debug information that isn't appropriate for unprivileged
+	  users of the system.  Sysfs and debugfs have also become a large source
+	  of new vulnerabilities, ranging from infoleaks to local compromise.
+	  There has been very little oversight with an eye toward security involved
+	  in adding new exporters of information to these filesystems, so their
+	  use is discouraged.
+	  For reasons of compatibility, a few directories have been whitelisted
+	  for access by non-root users:
+	  /sys/fs/selinux
+	  /sys/fs/fuse
+	  /sys/devices/system/cpu
+
+config GRKERNSEC_ROFS
+	bool "Runtime read-only mount protection"
+	depends on SYSCTL
+	help
+	  If you say Y here, a sysctl option with name "romount_protect" will
+	  be created.  By setting this option to 1 at runtime, filesystems
+	  will be protected in the following ways:
+	  * No new writable mounts will be allowed
+	  * Existing read-only mounts won't be able to be remounted read/write
+	  * Write operations will be denied on all block devices
+	  This option acts independently of grsec_lock: once it is set to 1,
+	  it cannot be turned off.  Therefore, please be mindful of the resulting
+	  behavior if this option is enabled in an init script on a read-only
+	  filesystem.
+	  Also be aware that as with other root-focused features, GRKERNSEC_KMEM
+	  and GRKERNSEC_IO should be enabled and module loading disabled via
+	  config or at runtime.
+	  This feature is mainly intended for secure embedded systems.
+	  
+
+config GRKERNSEC_DEVICE_SIDECHANNEL
+	bool "Eliminate stat/notify-based device sidechannels"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, timing analyses on block or character
+	  devices like /dev/ptmx using stat or inotify/dnotify/fanotify
+	  will be thwarted for unprivileged users.  If a process without
+	  CAP_MKNOD stats such a device, the last access and last modify times
+	  will match the device's create time.  No access or modify events
+	  will be triggered through inotify/dnotify/fanotify for such devices.
+	  This feature will prevent attacks that may at a minimum
+	  allow an attacker to determine the administrator's password length.
+
+config GRKERNSEC_CHROOT
+	bool "Chroot jail restrictions"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, you will be able to choose several options that will
+	  make breaking out of a chrooted jail much more difficult.  If you
+	  encounter no software incompatibilities with the following options, it
+	  is recommended that you enable each one.
+
+	  Note that the chroot restrictions are not intended to apply to "chroots"
+	  to directories that are simple bind mounts of the global root filesystem.
+	  For several other reasons, a user shouldn't expect any significant
+	  security by performing such a chroot.
+
+config GRKERNSEC_CHROOT_MOUNT
+	bool "Deny mounts"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_CHROOT
+	help
+	  If you say Y here, processes inside a chroot will not be able to
+	  mount or remount filesystems.  If the sysctl option is enabled, a
+	  sysctl option with name "chroot_deny_mount" is created.
+
+config GRKERNSEC_CHROOT_DOUBLE
+	bool "Deny double-chroots"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_CHROOT
+	help
+	  If you say Y here, processes inside a chroot will not be able to chroot
+	  again outside the chroot.  This is a widely used method of breaking
+	  out of a chroot jail and should not be allowed.  If the sysctl 
+	  option is enabled, a sysctl option with name 
+	  "chroot_deny_chroot" is created.
+
+config GRKERNSEC_CHROOT_PIVOT
+	bool "Deny pivot_root in chroot"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_CHROOT
+	help
+	  If you say Y here, processes inside a chroot will not be able to use
+	  a function called pivot_root() that was introduced in Linux 2.3.41.  It
+	  works similar to chroot in that it changes the root filesystem.  This
+	  function could be misused in a chrooted process to attempt to break out
+	  of the chroot, and therefore should not be allowed.  If the sysctl
+	  option is enabled, a sysctl option with name "chroot_deny_pivot" is
+	  created.
+
+config GRKERNSEC_CHROOT_CHDIR
+	bool "Enforce chdir(\"/\") on all chroots"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_CHROOT
+	help
+	  If you say Y here, the current working directory of all newly-chrooted
+	  applications will be set to the the root directory of the chroot.
+	  The man page on chroot(2) states:
+	  Note that this call does not change  the  current  working
+	  directory,  so  that `.' can be outside the tree rooted at
+	  `/'.  In particular, the  super-user  can  escape  from  a
+	  `chroot jail' by doing `mkdir foo; chroot foo; cd ..'.
+
+	  It is recommended that you say Y here, since it's not known to break
+	  any software.  If the sysctl option is enabled, a sysctl option with
+	  name "chroot_enforce_chdir" is created.
+
+config GRKERNSEC_CHROOT_CHMOD
+	bool "Deny (f)chmod +s"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_CHROOT
+	help
+	  If you say Y here, processes inside a chroot will not be able to chmod
+	  or fchmod files to make them have suid or sgid bits.  This protects
+	  against another published method of breaking a chroot.  If the sysctl
+	  option is enabled, a sysctl option with name "chroot_deny_chmod" is
+	  created.
+
+config GRKERNSEC_CHROOT_FCHDIR
+	bool "Deny fchdir and fhandle out of chroot"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_CHROOT
+	help
+	  If you say Y here, a well-known method of breaking chroots by fchdir'ing
+	  to a file descriptor of the chrooting process that points to a directory
+	  outside the filesystem will be stopped.  This option also prevents use of
+	  the recently-created syscall for opening files by a guessable "file handle"
+	  inside a chroot, as well as accessing relative paths outside of a
+	  directory passed in via file descriptor with openat and similar syscalls.
+	  If the sysctl option is enabled, a sysctl option with name "chroot_deny_fchdir"
+	  is created.
+
+config GRKERNSEC_CHROOT_MKNOD
+	bool "Deny mknod"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_CHROOT
+	help
+	  If you say Y here, processes inside a chroot will not be allowed to
+	  mknod.  The problem with using mknod inside a chroot is that it
+	  would allow an attacker to create a device entry that is the same
+	  as one on the physical root of your system, which could range from
+	  anything from the console device to a device for your harddrive (which
+	  they could then use to wipe the drive or steal data).  It is recommended
+	  that you say Y here, unless you run into software incompatibilities.
+	  If the sysctl option is enabled, a sysctl option with name
+	  "chroot_deny_mknod" is created.
+
+config GRKERNSEC_CHROOT_SHMAT
+	bool "Deny shmat() out of chroot"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_CHROOT
+	help
+	  If you say Y here, processes inside a chroot will not be able to attach
+	  to shared memory segments that were created outside of the chroot jail.
+	  It is recommended that you say Y here.  If the sysctl option is enabled,
+	  a sysctl option with name "chroot_deny_shmat" is created.
+
+config GRKERNSEC_CHROOT_UNIX
+	bool "Deny access to abstract AF_UNIX sockets out of chroot"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_CHROOT
+	help
+	  If you say Y here, processes inside a chroot will not be able to
+	  connect to abstract (meaning not belonging to a filesystem) Unix
+	  domain sockets that were bound outside of a chroot.  It is recommended
+	  that you say Y here.  If the sysctl option is enabled, a sysctl option
+	  with name "chroot_deny_unix" is created.
+
+config GRKERNSEC_CHROOT_FINDTASK
+	bool "Protect outside processes"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_CHROOT
+	help
+	  If you say Y here, processes inside a chroot will not be able to
+	  kill, send signals with fcntl, ptrace, capget, getpgid, setpgid, 
+	  getsid, or view any process outside of the chroot.  If the sysctl
+	  option is enabled, a sysctl option with name "chroot_findtask" is
+	  created.
+
+config GRKERNSEC_CHROOT_NICE
+	bool "Restrict priority changes"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_CHROOT
+	help
+	  If you say Y here, processes inside a chroot will not be able to raise
+	  the priority of processes in the chroot, or alter the priority of
+	  processes outside the chroot.  This provides more security than simply
+	  removing CAP_SYS_NICE from the process' capability set.  If the
+	  sysctl option is enabled, a sysctl option with name "chroot_restrict_nice"
+	  is created.
+
+config GRKERNSEC_CHROOT_SYSCTL
+	bool "Deny sysctl writes"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_CHROOT
+	help
+	  If you say Y here, an attacker in a chroot will not be able to
+	  write to sysctl entries, either by sysctl(2) or through a /proc
+	  interface.  It is strongly recommended that you say Y here. If the
+	  sysctl option is enabled, a sysctl option with name
+	  "chroot_deny_sysctl" is created.
+
+config GRKERNSEC_CHROOT_RENAME
+	bool "Deny bad renames"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_CHROOT
+	help
+	  If you say Y here, an attacker in a chroot will not be able to
+	  abuse the ability to create double chroots to break out of the
+	  chroot by exploiting a race condition between a rename of a directory
+	  within a chroot against an open of a symlink with relative path
+	  components.  This feature will likewise prevent an accomplice outside
+	  a chroot from enabling a user inside the chroot to break out and make
+	  use of their credentials on the global filesystem.  Enabling this
+	  feature is essential to prevent root users from breaking out of a
+	  chroot. If the sysctl option is enabled, a sysctl option with name
+	  "chroot_deny_bad_rename" is created.
+
+config GRKERNSEC_CHROOT_CAPS
+	bool "Capability restrictions"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_CHROOT
+	help
+	  If you say Y here, the capabilities on all processes within a
+	  chroot jail will be lowered to stop module insertion, raw i/o,
+	  system and net admin tasks, rebooting the system, modifying immutable
+	  files, modifying IPC owned by another, and changing the system time.
+	  This is left an option because it can break some apps.  Disable this
+	  if your chrooted apps are having problems performing those kinds of
+	  tasks.  If the sysctl option is enabled, a sysctl option with
+	  name "chroot_caps" is created.
+
+config GRKERNSEC_CHROOT_INITRD
+	bool "Exempt initrd tasks from restrictions"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_CHROOT && BLK_DEV_INITRD
+	help
+	  If you say Y here, tasks started prior to init will be exempted from
+	  grsecurity's chroot restrictions.  This option is mainly meant to
+	  resolve Plymouth's performing privileged operations unnecessarily
+	  in a chroot.
+
+endmenu
+menu "Kernel Auditing"
+depends on GRKERNSEC
+
+config GRKERNSEC_AUDIT_GROUP
+	bool "Single group for auditing"
+	help
+	  If you say Y here, the exec and chdir logging features will only operate
+	  on a group you specify.  This option is recommended if you only want to
+	  watch certain users instead of having a large amount of logs from the
+	  entire system.  If the sysctl option is enabled, a sysctl option with
+	  name "audit_group" is created.
+
+config GRKERNSEC_AUDIT_GID
+	int "GID for auditing"
+	depends on GRKERNSEC_AUDIT_GROUP
+	default 1007
+
+config GRKERNSEC_EXECLOG
+	bool "Exec logging"
+	help
+	  If you say Y here, all execve() calls will be logged (since the
+	  other exec*() calls are frontends to execve(), all execution
+	  will be logged).  Useful for shell-servers that like to keep track
+	  of their users.  If the sysctl option is enabled, a sysctl option with
+	  name "exec_logging" is created.
+	  WARNING: This option when enabled will produce a LOT of logs, especially
+	  on an active system.
+
+config GRKERNSEC_RESLOG
+	bool "Resource logging"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, all attempts to overstep resource limits will
+	  be logged with the resource name, the requested size, and the current
+	  limit.  It is highly recommended that you say Y here.  If the sysctl
+	  option is enabled, a sysctl option with name "resource_logging" is
+	  created.  If the RBAC system is enabled, the sysctl value is ignored.
+
+config GRKERNSEC_CHROOT_EXECLOG
+	bool "Log execs within chroot"
+	help
+	  If you say Y here, all executions inside a chroot jail will be logged
+	  to syslog.  This can cause a large amount of logs if certain
+	  applications (eg. djb's daemontools) are installed on the system, and
+	  is therefore left as an option.  If the sysctl option is enabled, a
+	  sysctl option with name "chroot_execlog" is created.
+
+config GRKERNSEC_AUDIT_PTRACE
+	bool "Ptrace logging"
+	help
+	  If you say Y here, all attempts to attach to a process via ptrace
+	  will be logged.  If the sysctl option is enabled, a sysctl option
+	  with name "audit_ptrace" is created.
+
+config GRKERNSEC_AUDIT_CHDIR
+	bool "Chdir logging"
+	help
+	  If you say Y here, all chdir() calls will be logged.  If the sysctl
+ 	  option is enabled, a sysctl option with name "audit_chdir" is created.
+
+config GRKERNSEC_AUDIT_MOUNT
+	bool "(Un)Mount logging"
+	help
+	  If you say Y here, all mounts and unmounts will be logged.  If the
+	  sysctl option is enabled, a sysctl option with name "audit_mount" is
+	  created.
+
+config GRKERNSEC_SIGNAL
+	bool "Signal logging"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, certain important signals will be logged, such as
+	  SIGSEGV, which will as a result inform you of when a error in a program
+	  occurred, which in some cases could mean a possible exploit attempt.
+	  If the sysctl option is enabled, a sysctl option with name
+	  "signal_logging" is created.
+
+config GRKERNSEC_FORKFAIL
+	bool "Fork failure logging"
+	help
+	  If you say Y here, all failed fork() attempts will be logged.
+	  This could suggest a fork bomb, or someone attempting to overstep
+	  their process limit.  If the sysctl option is enabled, a sysctl option
+	  with name "forkfail_logging" is created.
+
+config GRKERNSEC_TIME
+	bool "Time change logging"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, any changes of the system clock will be logged.
+	  If the sysctl option is enabled, a sysctl option with name
+	  "timechange_logging" is created.
+
+config GRKERNSEC_PROC_IPADDR
+	bool "/proc/<pid>/ipaddr support"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, a new entry will be added to each /proc/<pid>
+	  directory that contains the IP address of the person using the task.
+	  The IP is carried across local TCP and AF_UNIX stream sockets.
+	  This information can be useful for IDS/IPSes to perform remote response
+	  to a local attack.  The entry is readable by only the owner of the
+	  process (and root if he has CAP_DAC_OVERRIDE, which can be removed via
+	  the RBAC system), and thus does not create privacy concerns.
+
+config GRKERNSEC_RWXMAP_LOG
+	bool 'Denied RWX mmap/mprotect logging'
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on PAX_MPROTECT && !PAX_EMUPLT && !PAX_EMUSIGRT
+	help
+	  If you say Y here, calls to mmap() and mprotect() with explicit
+	  usage of PROT_WRITE and PROT_EXEC together will be logged when
+	  denied by the PAX_MPROTECT feature.  This feature will also
+	  log other problematic scenarios that can occur when PAX_MPROTECT
+	  is enabled on a binary, like textrels and PT_GNU_STACK.  If the 
+          sysctl option is enabled, a sysctl option with name "rwxmap_logging"
+	  is created.
+
+endmenu
+
+menu "Executable Protections"
+depends on GRKERNSEC
+
+config GRKERNSEC_DMESG
+	bool "Dmesg(8) restriction"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, non-root users will not be able to use dmesg(8)
+	  to view the contents of the kernel's circular log buffer.
+	  The kernel's log buffer often contains kernel addresses and other
+	  identifying information useful to an attacker in fingerprinting a
+	  system for a targeted exploit.
+	  If the sysctl option is enabled, a sysctl option with name "dmesg" is
+	  created.
+
+config GRKERNSEC_HARDEN_PTRACE
+	bool "Deter ptrace-based process snooping"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, TTY sniffers and other malicious monitoring
+	  programs implemented through ptrace will be defeated.  If you
+	  have been using the RBAC system, this option has already been
+	  enabled for several years for all users, with the ability to make
+	  fine-grained exceptions.
+
+	  This option only affects the ability of non-root users to ptrace
+	  processes that are not a descendent of the ptracing process.
+	  This means that strace ./binary and gdb ./binary will still work,
+	  but attaching to arbitrary processes will not.  If the sysctl
+	  option is enabled, a sysctl option with name "harden_ptrace" is
+	  created.
+
+config GRKERNSEC_PTRACE_READEXEC
+	bool "Require read access to ptrace sensitive binaries"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, unprivileged users will not be able to ptrace unreadable
+	  binaries.  This option is useful in environments that
+	  remove the read bits (e.g. file mode 4711) from suid binaries to
+	  prevent infoleaking of their contents.  This option adds
+	  consistency to the use of that file mode, as the binary could normally
+	  be read out when run without privileges while ptracing.
+
+	  If the sysctl option is enabled, a sysctl option with name "ptrace_readexec"
+	  is created.
+
+config GRKERNSEC_SETXID
+	bool "Enforce consistent multithreaded privileges"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on (X86 || SPARC64 || PPC || ARM || MIPS)
+	help
+	  If you say Y here, a change from a root uid to a non-root uid
+	  in a multithreaded application will cause the resulting uids,
+	  gids, supplementary groups, and capabilities in that thread
+	  to be propagated to the other threads of the process.  In most
+	  cases this is unnecessary, as glibc will emulate this behavior
+	  on behalf of the application.  Other libcs do not act in the
+	  same way, allowing the other threads of the process to continue
+	  running with root privileges.  If the sysctl option is enabled,
+	  a sysctl option with name "consistent_setxid" is created.
+
+config GRKERNSEC_HARDEN_IPC
+	bool "Disallow access to overly-permissive IPC objects"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on SYSVIPC
+	help
+	  If you say Y here, access to overly-permissive IPC objects (shared
+	  memory, message queues, and semaphores) will be denied for processes
+	  given the following criteria beyond normal permission checks:
+	  1) If the IPC object is world-accessible and the euid doesn't match
+	     that of the creator or current uid for the IPC object
+	  2) If the IPC object is group-accessible and the egid doesn't
+	     match that of the creator or current gid for the IPC object
+	  It's a common error to grant too much permission to these objects,
+	  with impact ranging from denial of service and information leaking to
+	  privilege escalation.  This feature was developed in response to
+	  research by Tim Brown:
+	  http://labs.portcullis.co.uk/whitepapers/memory-squatting-attacks-on-system-v-shared-memory/
+	  who found hundreds of such insecure usages.  Processes with
+	  CAP_IPC_OWNER are still permitted to access these IPC objects.
+	  If the sysctl option is enabled, a sysctl option with name
+	  "harden_ipc" is created.
+
+config GRKERNSEC_HARDEN_TTY
+	bool "Disallow unprivileged use of command injection"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, the ability to use the TIOCSTI ioctl for
+	  terminal command injection will be denied for unprivileged users.
+	  There are very few legitimate uses for this functionality and it
+	  has made vulnerabilities in several 'su'-like programs possible in
+	  the past.  Even without these vulnerabilities, it provides an
+	  attacker with an easy mechanism to move laterally among other
+	  processes within the same user's compromised session.
+	  By default, Linux allows unprivileged use of command injection as
+	  long as the injection is being performed into the same tty session.
+	  This feature makes that case the same as attempting to inject into
+	  another session, making any TIOCSTI use require CAP_SYS_ADMIN.
+	  If the sysctl option is enabled, a sysctl option with name
+	  "harden_tty" is created.
+
+config GRKERNSEC_TPE
+	bool "Trusted Path Execution (TPE)"
+	default y if GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER
+	help
+	  If you say Y here, you will be able to choose a gid to add to the
+	  supplementary groups of users you want to mark as "untrusted."
+	  These users will not be able to execute any files that are not in
+	  root-owned directories writable only by root.  If the sysctl option
+	  is enabled, a sysctl option with name "tpe" is created.
+
+config GRKERNSEC_TPE_ALL
+	bool "Partially restrict all non-root users"
+	depends on GRKERNSEC_TPE
+	help
+	  If you say Y here, all non-root users will be covered under
+	  a weaker TPE restriction.  This is separate from, and in addition to,
+	  the main TPE options that you have selected elsewhere.  Thus, if a
+	  "trusted" GID is chosen, this restriction applies to even that GID.
+	  Under this restriction, all non-root users will only be allowed to
+	  execute files in directories they own that are not group or
+	  world-writable, or in directories owned by root and writable only by
+	  root.  If the sysctl option is enabled, a sysctl option with name
+	  "tpe_restrict_all" is created.
+
+config GRKERNSEC_TPE_INVERT
+	bool "Invert GID option"
+	depends on GRKERNSEC_TPE
+	help
+	  If you say Y here, the group you specify in the TPE configuration will
+	  decide what group TPE restrictions will be *disabled* for.  This
+	  option is useful if you want TPE restrictions to be applied to most
+	  users on the system.  If the sysctl option is enabled, a sysctl option
+	  with name "tpe_invert" is created.  Unlike other sysctl options, this
+	  entry will default to on for backward-compatibility.
+
+config GRKERNSEC_TPE_GID
+	int
+	default GRKERNSEC_TPE_UNTRUSTED_GID if (GRKERNSEC_TPE && !GRKERNSEC_TPE_INVERT)
+	default GRKERNSEC_TPE_TRUSTED_GID if (GRKERNSEC_TPE && GRKERNSEC_TPE_INVERT)
+	
+config GRKERNSEC_TPE_UNTRUSTED_GID
+	int "GID for TPE-untrusted users"
+	depends on GRKERNSEC_TPE && !GRKERNSEC_TPE_INVERT
+	default 1005
+	help
+	  Setting this GID determines what group TPE restrictions will be
+	  *enabled* for.  If the sysctl option is enabled, a sysctl option
+	  with name "tpe_gid" is created.
+
+config GRKERNSEC_TPE_TRUSTED_GID
+	int "GID for TPE-trusted users"
+	depends on GRKERNSEC_TPE && GRKERNSEC_TPE_INVERT
+	default 1005
+	help
+	  Setting this GID determines what group TPE restrictions will be
+	  *disabled* for.  If the sysctl option is enabled, a sysctl option
+	  with name "tpe_gid" is created.
+
+endmenu
+menu "Network Protections"
+depends on GRKERNSEC
+
+config GRKERNSEC_BLACKHOLE
+	bool "TCP/UDP blackhole and LAST_ACK DoS prevention"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on NET
+	help
+	  If you say Y here, neither TCP resets nor ICMP
+	  destination-unreachable packets will be sent in response to packets
+	  sent to ports for which no associated listening process exists.
+	  It will also prevent the sending of ICMP protocol unreachable packets
+	  in response to packets with unknown protocols.
+	  This feature supports both IPV4 and IPV6 and exempts the 
+	  loopback interface from blackholing.  Enabling this feature 
+	  makes a host more resilient to DoS attacks and reduces network
+	  visibility against scanners.
+
+	  The blackhole feature as-implemented is equivalent to the FreeBSD
+	  blackhole feature, as it prevents RST responses to all packets, not
+	  just SYNs.  Under most application behavior this causes no
+	  problems, but applications (like haproxy) may not close certain
+	  connections in a way that cleanly terminates them on the remote
+	  end, leaving the remote host in LAST_ACK state.  Because of this
+	  side-effect and to prevent intentional LAST_ACK DoSes, this
+	  feature also adds automatic mitigation against such attacks.
+	  The mitigation drastically reduces the amount of time a socket
+	  can spend in LAST_ACK state.  If you're using haproxy and not
+	  all servers it connects to have this option enabled, consider
+	  disabling this feature on the haproxy host.
+
+	  If the sysctl option is enabled, two sysctl options with names
+	  "ip_blackhole" and "lastack_retries" will be created.
+	  While "ip_blackhole" takes the standard zero/non-zero on/off
+	  toggle, "lastack_retries" uses the same kinds of values as
+	  "tcp_retries1" and "tcp_retries2".  The default value of 4
+	  prevents a socket from lasting more than 45 seconds in LAST_ACK
+	  state.
+
+config GRKERNSEC_NO_SIMULT_CONNECT
+	bool "Disable TCP Simultaneous Connect"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on NET
+	help
+	  If you say Y here, a feature by Willy Tarreau will be enabled that
+	  removes a weakness in Linux's strict implementation of TCP that
+	  allows two clients to connect to each other without either entering
+	  a listening state.  The weakness allows an attacker to easily prevent
+	  a client from connecting to a known server provided the source port
+	  for the connection is guessed correctly.
+
+	  As the weakness could be used to prevent an antivirus or IPS from
+	  fetching updates, or prevent an SSL gateway from fetching a CRL,
+	  it should be eliminated by enabling this option.  Though Linux is
+	  one of few operating systems supporting simultaneous connect, it
+	  has no legitimate use in practice and is rarely supported by firewalls.
+	
+config GRKERNSEC_SOCKET
+	bool "Socket restrictions"
+	depends on NET
+	help
+	  If you say Y here, you will be able to choose from several options.
+	  If you assign a GID on your system and add it to the supplementary
+	  groups of users you want to restrict socket access to, this patch
+	  will perform up to three things, based on the option(s) you choose.
+
+config GRKERNSEC_SOCKET_ALL
+	bool "Deny any sockets to group"
+	depends on GRKERNSEC_SOCKET
+	help
+	  If you say Y here, you will be able to choose a GID of whose users will
+	  be unable to connect to other hosts from your machine or run server
+	  applications from your machine.  If the sysctl option is enabled, a
+	  sysctl option with name "socket_all" is created.
+
+config GRKERNSEC_SOCKET_ALL_GID
+	int "GID to deny all sockets for"
+	depends on GRKERNSEC_SOCKET_ALL
+	default 1004
+	help
+	  Here you can choose the GID to disable socket access for. Remember to
+	  add the users you want socket access disabled for to the GID
+	  specified here.  If the sysctl option is enabled, a sysctl option
+	  with name "socket_all_gid" is created.
+
+config GRKERNSEC_SOCKET_CLIENT
+	bool "Deny client sockets to group"
+	depends on GRKERNSEC_SOCKET
+	help
+	  If you say Y here, you will be able to choose a GID of whose users will
+	  be unable to connect to other hosts from your machine, but will be
+	  able to run servers.  If this option is enabled, all users in the group
+	  you specify will have to use passive mode when initiating ftp transfers
+	  from the shell on your machine.  If the sysctl option is enabled, a
+	  sysctl option with name "socket_client" is created.
+
+config GRKERNSEC_SOCKET_CLIENT_GID
+	int "GID to deny client sockets for"
+	depends on GRKERNSEC_SOCKET_CLIENT
+	default 1003
+	help
+	  Here you can choose the GID to disable client socket access for.
+	  Remember to add the users you want client socket access disabled for to
+	  the GID specified here.  If the sysctl option is enabled, a sysctl
+	  option with name "socket_client_gid" is created.
+
+config GRKERNSEC_SOCKET_SERVER
+	bool "Deny server sockets to group"
+	depends on GRKERNSEC_SOCKET
+	help
+	  If you say Y here, you will be able to choose a GID of whose users will
+	  be unable to run server applications from your machine.  If the sysctl
+	  option is enabled, a sysctl option with name "socket_server" is created.
+
+config GRKERNSEC_SOCKET_SERVER_GID
+	int "GID to deny server sockets for"
+	depends on GRKERNSEC_SOCKET_SERVER
+	default 1002
+	help
+	  Here you can choose the GID to disable server socket access for.
+	  Remember to add the users you want server socket access disabled for to
+	  the GID specified here.  If the sysctl option is enabled, a sysctl
+	  option with name "socket_server_gid" is created.
+
+endmenu
+
+menu "Physical Protections"
+depends on GRKERNSEC
+
+config GRKERNSEC_DENYUSB
+	bool "Deny new USB connections after toggle"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on SYSCTL && USB_SUPPORT
+	help
+	  If you say Y here, a new sysctl option with name "deny_new_usb"
+	  will be created.  Setting its value to 1 will prevent any new
+	  USB devices from being recognized by the OS.  Any attempted USB
+	  device insertion will be logged.  This option is intended to be
+	  used against custom USB devices designed to exploit vulnerabilities
+	  in various USB device drivers.
+
+	  For greatest effectiveness, this sysctl should be set after any
+	  relevant init scripts.  This option is safe to enable in distros
+	  as each user can choose whether or not to toggle the sysctl.
+
+config GRKERNSEC_DENYUSB_FORCE
+	bool "Reject all USB devices not connected at boot"
+	select USB
+	depends on GRKERNSEC_DENYUSB
+	help
+	  If you say Y here, a variant of GRKERNSEC_DENYUSB will be enabled
+	  that doesn't involve a sysctl entry.  This option should only be
+	  enabled if you're sure you want to deny all new USB connections
+	  at runtime and don't want to modify init scripts.  This should not
+	  be enabled by distros.  It forces the core USB code to be built
+	  into the kernel image so that all devices connected at boot time
+	  can be recognized and new USB device connections can be prevented
+	  prior to init running.
+
+endmenu
+
+menu "Sysctl Support"
+depends on GRKERNSEC && SYSCTL
+
+config GRKERNSEC_SYSCTL
+	bool "Sysctl support"
+	default y if GRKERNSEC_CONFIG_AUTO
+	help
+	  If you say Y here, you will be able to change the options that
+	  grsecurity runs with at bootup, without having to recompile your
+	  kernel.  You can echo values to files in /proc/sys/kernel/grsecurity
+	  to enable (1) or disable (0) various features.  All the sysctl entries
+	  are mutable until the "grsec_lock" entry is set to a non-zero value.
+	  All features enabled in the kernel configuration are disabled at boot
+	  if you do not say Y to the "Turn on features by default" option.
+	  All options should be set at startup, and the grsec_lock entry should
+	  be set to a non-zero value after all the options are set.
+	  *THIS IS EXTREMELY IMPORTANT*
+
+config GRKERNSEC_SYSCTL_DISTRO
+	bool "Extra sysctl support for distro makers (READ HELP)"
+	depends on GRKERNSEC_SYSCTL && GRKERNSEC_IO
+	help
+	  If you say Y here, additional sysctl options will be created
+	  for features that affect processes running as root.  Therefore,
+	  it is critical when using this option that the grsec_lock entry be
+	  enabled after boot.  Only distros with prebuilt kernel packages
+	  with this option enabled that can ensure grsec_lock is enabled
+	  after boot should use this option.
+	  *Failure to set grsec_lock after boot makes all grsec features
+	  this option covers useless*
+
+	  Currently this option creates the following sysctl entries:
+	  "Disable Privileged I/O": "disable_priv_io"	
+
+config GRKERNSEC_SYSCTL_ON
+	bool "Turn on features by default"
+	default y if GRKERNSEC_CONFIG_AUTO
+	depends on GRKERNSEC_SYSCTL
+	help
+	  If you say Y here, instead of having all features enabled in the
+	  kernel configuration disabled at boot time, the features will be
+	  enabled at boot time.  It is recommended you say Y here unless
+	  there is some reason you would want all sysctl-tunable features to
+	  be disabled by default.  As mentioned elsewhere, it is important
+	  to enable the grsec_lock entry once you have finished modifying
+	  the sysctl entries.
+
+endmenu
+menu "Logging Options"
+depends on GRKERNSEC
+
+config GRKERNSEC_FLOODTIME
+	int "Seconds in between log messages (minimum)"
+	default 10
+	help
+	  This option allows you to enforce the number of seconds between
+	  grsecurity log messages.  The default should be suitable for most
+	  people, however, if you choose to change it, choose a value small enough
+	  to allow informative logs to be produced, but large enough to
+	  prevent flooding.
+
+	  Setting both this value and GRKERNSEC_FLOODBURST to 0 will disable
+	  any rate limiting on grsecurity log messages.
+
+config GRKERNSEC_FLOODBURST
+	int "Number of messages in a burst (maximum)"
+	default 6
+	help
+	  This option allows you to choose the maximum number of messages allowed
+	  within the flood time interval you chose in a separate option.  The
+	  default should be suitable for most people, however if you find that
+	  many of your logs are being interpreted as flooding, you may want to
+	  raise this value.
+
+	  Setting both this value and GRKERNSEC_FLOODTIME to 0 will disable
+	  any rate limiting on grsecurity log messages.
+
+endmenu
diff --git a/grsecurity/Makefile b/grsecurity/Makefile
new file mode 100644
index 0000000..e136e5f
--- /dev/null
+++ b/grsecurity/Makefile
@@ -0,0 +1,54 @@
+# grsecurity - access control and security hardening for Linux
+# All code in this directory and various hooks located throughout the Linux kernel are
+# Copyright (C) 2001-2014 Bradley Spengler, Open Source Security, Inc.
+# http://www.grsecurity.net spender@grsecurity.net
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License version 2
+# as published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+KBUILD_CFLAGS += -Werror
+
+obj-y = grsec_chdir.o grsec_chroot.o grsec_exec.o grsec_fifo.o grsec_fork.o \
+	grsec_mount.o grsec_sig.o grsec_sysctl.o \
+	grsec_time.o grsec_tpe.o grsec_link.o grsec_pax.o grsec_ptrace.o \
+	grsec_usb.o grsec_ipc.o grsec_proc.o grsec_tty.o
+
+obj-$(CONFIG_GRKERNSEC) += grsec_init.o grsum.o gracl.o gracl_segv.o \
+	gracl_cap.o gracl_alloc.o gracl_shm.o grsec_mem.o gracl_fs.o \
+	gracl_learn.o grsec_log.o gracl_policy.o
+ifdef CONFIG_COMPAT
+obj-$(CONFIG_GRKERNSEC) += gracl_compat.o
+endif
+
+obj-$(CONFIG_GRKERNSEC_RESLOG) += gracl_res.o
+
+ifdef CONFIG_NET
+obj-y += grsec_sock.o
+obj-$(CONFIG_GRKERNSEC) += gracl_ip.o
+endif
+
+ifndef CONFIG_GRKERNSEC
+obj-y += grsec_disabled.o
+endif
+
+ifdef CONFIG_GRKERNSEC_HIDESYM
+extra-y := grsec_hidesym.o
+$(obj)/grsec_hidesym.o:
+	@-chmod -f 500 /boot
+	@-chmod -f 500 /lib/modules
+	@-chmod -f 500 /lib64/modules
+	@-chmod -f 500 /lib32/modules
+	@-chmod -f 700 .
+	@-chmod -f 700 $(objtree)
+	@echo '  grsec: protected kernel image paths'
+endif
diff --git a/grsecurity/gracl.c b/grsecurity/gracl.c
new file mode 100644
index 0000000..3c66319
--- /dev/null
+++ b/grsecurity/gracl.c
@@ -0,0 +1,2757 @@
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/file.h>
+#include <linux/fs.h>
+#include <linux/namei.h>
+#include <linux/mount.h>
+#include <linux/tty.h>
+#include <linux/proc_fs.h>
+#include <linux/lglock.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/types.h>
+#include <linux/sysctl.h>
+#include <linux/netdevice.h>
+#include <linux/ptrace.h>
+#include <linux/gracl.h>
+#include <linux/gralloc.h>
+#include <linux/security.h>
+#include <linux/grinternal.h>
+#include <linux/pid_namespace.h>
+#include <linux/stop_machine.h>
+#include <linux/fdtable.h>
+#include <linux/percpu.h>
+#include <linux/lglock.h>
+#include <linux/hugetlb.h>
+#include <linux/posix-timers.h>
+#include <linux/prefetch.h>
+#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
+#include <linux/magic.h>
+#include <linux/pagemap.h>
+#include "../fs/btrfs/async-thread.h"
+#include "../fs/btrfs/ctree.h"
+#include "../fs/btrfs/btrfs_inode.h"
+#endif
+#include "../fs/mount.h"
+
+#include <asm/uaccess.h>
+#include <asm/errno.h>
+#include <asm/mman.h>
+
+#define FOR_EACH_ROLE_START(role) \
+	role = running_polstate.role_list; \
+	while (role) {
+
+#define FOR_EACH_ROLE_END(role) \
+		role = role->prev; \
+	}
+
+extern struct path gr_real_root;
+
+static struct gr_policy_state running_polstate;
+struct gr_policy_state *polstate = &running_polstate;
+extern struct gr_alloc_state *current_alloc_state;
+
+extern char *gr_shared_page[4];
+DEFINE_RWLOCK(gr_inode_lock);
+
+static unsigned int gr_status __read_only = GR_STATUS_INIT;
+
+#ifdef CONFIG_NET
+extern struct vfsmount *sock_mnt;
+#endif
+
+extern struct vfsmount *pipe_mnt;
+extern struct vfsmount *shm_mnt;
+
+#ifdef CONFIG_HUGETLBFS
+extern struct vfsmount *hugetlbfs_vfsmount[HUGE_MAX_HSTATE];
+#endif
+
+extern u16 acl_sp_role_value;
+extern struct acl_object_label *fakefs_obj_rw;
+extern struct acl_object_label *fakefs_obj_rwx;
+
+int gr_acl_is_enabled(void)
+{
+	return (gr_status & GR_READY);
+}
+
+void gr_enable_rbac_system(void)
+{
+	pax_open_kernel();
+	gr_status |= GR_READY;
+	pax_close_kernel();
+}
+
+int gr_rbac_disable(void *unused)
+{
+	pax_open_kernel();
+	gr_status &= ~GR_READY;
+	pax_close_kernel();
+
+	return 0;
+}
+
+static inline dev_t __get_dev(const struct dentry *dentry)
+{
+	struct dentry *ldentry = d_backing_dentry((struct dentry *)dentry);
+
+#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
+	if (ldentry->d_sb->s_magic == BTRFS_SUPER_MAGIC)
+		return BTRFS_I(d_inode(ldentry))->root->anon_dev;
+	else
+#endif
+		return d_inode(ldentry)->i_sb->s_dev;
+}
+
+static inline u64 __get_ino(const struct dentry *dentry)
+{
+	struct dentry *ldentry = d_backing_dentry((struct dentry *)dentry);
+
+#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
+	if (ldentry->d_sb->s_magic == BTRFS_SUPER_MAGIC)
+		return btrfs_ino(d_inode(dentry));
+	else
+#endif
+		return d_inode(ldentry)->i_ino;
+}
+
+dev_t gr_get_dev_from_dentry(struct dentry *dentry)
+{
+	return __get_dev(dentry);
+}
+
+u64 gr_get_ino_from_dentry(struct dentry *dentry)
+{
+	return __get_ino(dentry);
+}
+
+static char gr_task_roletype_to_char(struct task_struct *task)
+{
+	switch (task->role->roletype &
+		(GR_ROLE_DEFAULT | GR_ROLE_USER | GR_ROLE_GROUP |
+		 GR_ROLE_SPECIAL)) {
+	case GR_ROLE_DEFAULT:
+		return 'D';
+	case GR_ROLE_USER:
+		return 'U';
+	case GR_ROLE_GROUP:
+		return 'G';
+	case GR_ROLE_SPECIAL:
+		return 'S';
+	}
+
+	return 'X';
+}
+
+char gr_roletype_to_char(void)
+{
+	return gr_task_roletype_to_char(current);
+}
+
+int
+gr_acl_tpe_check(void)
+{
+	if (unlikely(!(gr_status & GR_READY)))
+		return 0;
+	if (current->role->roletype & GR_ROLE_TPE)
+		return 1;
+	else
+		return 0;
+}
+
+int
+gr_handle_rawio(const struct inode *inode)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
+	if (inode && (S_ISBLK(inode->i_mode) || (S_ISCHR(inode->i_mode) && imajor(inode) == RAW_MAJOR)) &&
+	    grsec_enable_chroot_caps && proc_is_chrooted(current) &&
+	    !capable(CAP_SYS_RAWIO))
+		return 1;
+#endif
+	return 0;
+}
+
+int
+gr_streq(const char *a, const char *b, const unsigned int lena, const unsigned int lenb)
+{
+	if (likely(lena != lenb))
+		return 0;
+
+	return !memcmp(a, b, lena);
+}
+
+static int prepend(char **buffer, int *buflen, const char *str, int namelen)
+{
+	*buflen -= namelen;
+	if (*buflen < 0)
+		return -ENAMETOOLONG;
+	*buffer -= namelen;
+	memcpy(*buffer, str, namelen);
+	return 0;
+}
+
+static int prepend_name(char **buffer, int *buflen, struct qstr *name)
+{
+	return prepend(buffer, buflen, (const char *)name->name, name->len);
+}
+
+static int prepend_path(const struct path *path, struct path *root,
+			char **buffer, int *buflen)
+{
+	struct dentry *dentry = path->dentry;
+	struct vfsmount *vfsmnt = path->mnt;
+	struct mount *mnt = real_mount(vfsmnt);
+	bool slash = false;
+	int error = 0;
+
+	while (dentry != root->dentry || vfsmnt != root->mnt) {
+		struct dentry * parent;
+
+		if (dentry == vfsmnt->mnt_root || IS_ROOT(dentry)) {
+			/* Global root? */
+			if (!mnt_has_parent(mnt)) {
+				goto out;
+			}
+			dentry = mnt->mnt_mountpoint;
+			mnt = mnt->mnt_parent;
+			vfsmnt = &mnt->mnt;
+			continue;
+		}
+		parent = dentry->d_parent;
+		prefetch(parent);
+		spin_lock(&dentry->d_lock);
+		error = prepend_name(buffer, buflen, &dentry->d_name);
+		spin_unlock(&dentry->d_lock);
+		if (!error)
+			error = prepend(buffer, buflen, "/", 1);
+		if (error)
+			break;
+
+		slash = true;
+		dentry = parent;
+	}
+
+out:
+	if (!error && !slash)
+		error = prepend(buffer, buflen, "/", 1);
+
+	return error;
+}
+
+/* this must be called with mount_lock and rename_lock held */
+
+static char *__our_d_path(const struct path *path, struct path *root,
+			char *buf, int buflen)
+{
+	char *res = buf + buflen;
+	int error;
+
+	prepend(&res, &buflen, "\0", 1);
+	error = prepend_path(path, root, &res, &buflen);
+	if (error)
+		return ERR_PTR(error);
+
+	return res;
+}
+
+static char *
+gen_full_path(struct path *path, struct path *root, char *buf, int buflen)
+{
+	char *retval;
+
+	retval = __our_d_path(path, root, buf, buflen);
+	if (unlikely(IS_ERR(retval)))
+		retval = strcpy(buf, "<path too long>");
+	else if (unlikely(retval[1] == '/' && retval[2] == '\0'))
+		retval[1] = '\0';
+
+	return retval;
+}
+
+static char *
+__d_real_path(const struct dentry *dentry, const struct vfsmount *vfsmnt,
+		char *buf, int buflen)
+{
+	struct path path;
+	char *res;
+
+	path.dentry = (struct dentry *)dentry;
+	path.mnt = (struct vfsmount *)vfsmnt;
+
+	/* we can use gr_real_root.dentry, gr_real_root.mnt, because this is only called
+	   by the RBAC system */
+	res = gen_full_path(&path, &gr_real_root, buf, buflen);
+
+	return res;
+}
+
+static char *
+d_real_path(const struct dentry *dentry, const struct vfsmount *vfsmnt,
+	    char *buf, int buflen)
+{
+	char *res;
+	struct path path;
+	struct path root;
+	struct task_struct *reaper = init_pid_ns.child_reaper;
+
+	path.dentry = (struct dentry *)dentry;
+	path.mnt = (struct vfsmount *)vfsmnt;
+
+	/* we can't use gr_real_root.dentry, gr_real_root.mnt, because they belong only to the RBAC system */
+	get_fs_root(reaper->fs, &root);
+
+	read_seqlock_excl(&mount_lock);
+	write_seqlock(&rename_lock);
+	res = gen_full_path(&path, &root, buf, buflen);
+	write_sequnlock(&rename_lock);
+	read_sequnlock_excl(&mount_lock);
+
+	path_put(&root);
+	return res;
+}
+
+char *
+gr_to_filename_rbac(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	char *ret;
+	read_seqlock_excl(&mount_lock);
+	write_seqlock(&rename_lock);
+	ret = __d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0],smp_processor_id()),
+			     PAGE_SIZE);
+	write_sequnlock(&rename_lock);
+	read_sequnlock_excl(&mount_lock);
+	return ret;
+}
+
+static char *
+gr_to_proc_filename_rbac(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	char *ret;
+	char *buf;
+	int buflen;
+
+	read_seqlock_excl(&mount_lock);
+	write_seqlock(&rename_lock);
+	buf = per_cpu_ptr(gr_shared_page[0], smp_processor_id());
+	ret = __d_real_path(dentry, mnt, buf, PAGE_SIZE - 6);
+	buflen = (int)(ret - buf);
+	if (buflen >= 5)
+		prepend(&ret, &buflen, "/proc", 5);
+	else
+		ret = strcpy(buf, "<path too long>");
+	write_sequnlock(&rename_lock);
+	read_sequnlock_excl(&mount_lock);
+	return ret;
+}
+
+char *
+gr_to_filename_nolock(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	return __d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0],smp_processor_id()),
+			     PAGE_SIZE);
+}
+
+char *
+gr_to_filename(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0], smp_processor_id()),
+			   PAGE_SIZE);
+}
+
+char *
+gr_to_filename1(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[1], smp_processor_id()),
+			   PAGE_SIZE);
+}
+
+char *
+gr_to_filename2(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[2], smp_processor_id()),
+			   PAGE_SIZE);
+}
+
+char *
+gr_to_filename3(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[3], smp_processor_id()),
+			   PAGE_SIZE);
+}
+
+__u32
+to_gr_audit(const __u32 reqmode)
+{
+	/* masks off auditable permission flags, then shifts them to create
+	   auditing flags, and adds the special case of append auditing if
+	   we're requesting write */
+	return (((reqmode & ~GR_AUDITS) << 10) | ((reqmode & GR_WRITE) ? GR_AUDIT_APPEND : 0));
+}
+
+struct acl_role_label *
+__lookup_acl_role_label(const struct gr_policy_state *state, const struct task_struct *task, const uid_t uid,
+		      const gid_t gid)
+{
+	unsigned int index = gr_rhash(uid, GR_ROLE_USER, state->acl_role_set.r_size);
+	struct acl_role_label *match;
+	struct role_allowed_ip *ipp;
+	unsigned int x;
+	u32 curr_ip = task->signal->saved_ip;
+
+	match = state->acl_role_set.r_hash[index];
+
+	while (match) {
+		if ((match->roletype & (GR_ROLE_DOMAIN | GR_ROLE_USER)) == (GR_ROLE_DOMAIN | GR_ROLE_USER)) {
+			for (x = 0; x < match->domain_child_num; x++) {
+				if (match->domain_children[x] == uid)
+					goto found;
+			}
+		} else if (match->uidgid == uid && match->roletype & GR_ROLE_USER)
+			break;
+		match = match->next;
+	}
+found:
+	if (match == NULL) {
+	      try_group:
+		index = gr_rhash(gid, GR_ROLE_GROUP, state->acl_role_set.r_size);
+		match = state->acl_role_set.r_hash[index];
+
+		while (match) {
+			if ((match->roletype & (GR_ROLE_DOMAIN | GR_ROLE_GROUP)) == (GR_ROLE_DOMAIN | GR_ROLE_GROUP)) {
+				for (x = 0; x < match->domain_child_num; x++) {
+					if (match->domain_children[x] == gid)
+						goto found2;
+				}
+			} else if (match->uidgid == gid && match->roletype & GR_ROLE_GROUP)
+				break;
+			match = match->next;
+		}
+found2:
+		if (match == NULL)
+			match = state->default_role;
+		if (match->allowed_ips == NULL)
+			return match;
+		else {
+			for (ipp = match->allowed_ips; ipp; ipp = ipp->next) {
+				if (likely
+				    ((ntohl(curr_ip) & ipp->netmask) ==
+				     (ntohl(ipp->addr) & ipp->netmask)))
+					return match;
+			}
+			match = state->default_role;
+		}
+	} else if (match->allowed_ips == NULL) {
+		return match;
+	} else {
+		for (ipp = match->allowed_ips; ipp; ipp = ipp->next) {
+			if (likely
+			    ((ntohl(curr_ip) & ipp->netmask) ==
+			     (ntohl(ipp->addr) & ipp->netmask)))
+				return match;
+		}
+		goto try_group;
+	}
+
+	return match;
+}
+
+static struct acl_role_label *
+lookup_acl_role_label(const struct task_struct *task, const uid_t uid,
+		      const gid_t gid)
+{
+	return __lookup_acl_role_label(&running_polstate, task, uid, gid);
+}
+
+struct acl_subject_label *
+lookup_acl_subj_label(const u64 ino, const dev_t dev,
+		      const struct acl_role_label *role)
+{
+	unsigned int index = gr_fhash(ino, dev, role->subj_hash_size);
+	struct acl_subject_label *match;
+
+	match = role->subj_hash[index];
+
+	while (match && (match->inode != ino || match->device != dev ||
+	       (match->mode & GR_DELETED))) {
+		match = match->next;
+	}
+
+	if (match && !(match->mode & GR_DELETED))
+		return match;
+	else
+		return NULL;
+}
+
+struct acl_subject_label *
+lookup_acl_subj_label_deleted(const u64 ino, const dev_t dev,
+			  const struct acl_role_label *role)
+{
+	unsigned int index = gr_fhash(ino, dev, role->subj_hash_size);
+	struct acl_subject_label *match;
+
+	match = role->subj_hash[index];
+
+	while (match && (match->inode != ino || match->device != dev ||
+	       !(match->mode & GR_DELETED))) {
+		match = match->next;
+	}
+
+	if (match && (match->mode & GR_DELETED))
+		return match;
+	else
+		return NULL;
+}
+
+static struct acl_object_label *
+lookup_acl_obj_label(const u64 ino, const dev_t dev,
+		     const struct acl_subject_label *subj)
+{
+	unsigned int index = gr_fhash(ino, dev, subj->obj_hash_size);
+	struct acl_object_label *match;
+
+	match = subj->obj_hash[index];
+
+	while (match && (match->inode != ino || match->device != dev ||
+	       (match->mode & GR_DELETED))) {
+		match = match->next;
+	}
+
+	if (match && !(match->mode & GR_DELETED))
+		return match;
+	else
+		return NULL;
+}
+
+static struct acl_object_label *
+lookup_acl_obj_label_create(const u64 ino, const dev_t dev,
+		     const struct acl_subject_label *subj)
+{
+	unsigned int index = gr_fhash(ino, dev, subj->obj_hash_size);
+	struct acl_object_label *match;
+
+	match = subj->obj_hash[index];
+
+	while (match && (match->inode != ino || match->device != dev ||
+	       !(match->mode & GR_DELETED))) {
+		match = match->next;
+	}
+
+	if (match && (match->mode & GR_DELETED))
+		return match;
+
+	match = subj->obj_hash[index];
+
+	while (match && (match->inode != ino || match->device != dev ||
+	       (match->mode & GR_DELETED))) {
+		match = match->next;
+	}
+
+	if (match && !(match->mode & GR_DELETED))
+		return match;
+	else
+		return NULL;
+}
+
+struct name_entry *
+__lookup_name_entry(const struct gr_policy_state *state, const char *name)
+{
+	unsigned int len = strlen(name);
+	unsigned int key = full_name_hash((const unsigned char *)name, len);
+	unsigned int index = key % state->name_set.n_size;
+	struct name_entry *match;
+
+	match = state->name_set.n_hash[index];
+
+	while (match && (match->key != key || !gr_streq(match->name, name, match->len, len)))
+		match = match->next;
+
+	return match;
+}
+
+static struct name_entry *
+lookup_name_entry(const char *name)
+{
+	return __lookup_name_entry(&running_polstate, name);
+}
+
+static struct name_entry *
+lookup_name_entry_create(const char *name)
+{
+	unsigned int len = strlen(name);
+	unsigned int key = full_name_hash((const unsigned char *)name, len);
+	unsigned int index = key % running_polstate.name_set.n_size;
+	struct name_entry *match;
+
+	match = running_polstate.name_set.n_hash[index];
+
+	while (match && (match->key != key || !gr_streq(match->name, name, match->len, len) ||
+			 !match->deleted))
+		match = match->next;
+
+	if (match && match->deleted)
+		return match;
+
+	match = running_polstate.name_set.n_hash[index];
+
+	while (match && (match->key != key || !gr_streq(match->name, name, match->len, len) ||
+			 match->deleted))
+		match = match->next;
+
+	if (match && !match->deleted)
+		return match;
+	else
+		return NULL;
+}
+
+static struct inodev_entry *
+lookup_inodev_entry(const u64 ino, const dev_t dev)
+{
+	unsigned int index = gr_fhash(ino, dev, running_polstate.inodev_set.i_size);
+	struct inodev_entry *match;
+
+	match = running_polstate.inodev_set.i_hash[index];
+
+	while (match && (match->nentry->inode != ino || match->nentry->device != dev))
+		match = match->next;
+
+	return match;
+}
+
+void
+__insert_inodev_entry(const struct gr_policy_state *state, struct inodev_entry *entry)
+{
+	unsigned int index = gr_fhash(entry->nentry->inode, entry->nentry->device,
+				    state->inodev_set.i_size);
+	struct inodev_entry **curr;
+
+	entry->prev = NULL;
+
+	curr = &state->inodev_set.i_hash[index];
+	if (*curr != NULL)
+		(*curr)->prev = entry;
+	
+	entry->next = *curr;
+	*curr = entry;
+
+	return;
+}
+
+static void
+insert_inodev_entry(struct inodev_entry *entry)
+{
+	__insert_inodev_entry(&running_polstate, entry);
+}
+
+void
+insert_acl_obj_label(struct acl_object_label *obj,
+		     struct acl_subject_label *subj)
+{
+	unsigned int index =
+	    gr_fhash(obj->inode, obj->device, subj->obj_hash_size);
+	struct acl_object_label **curr;
+
+	obj->prev = NULL;
+
+	curr = &subj->obj_hash[index];
+	if (*curr != NULL)
+		(*curr)->prev = obj;
+
+	obj->next = *curr;
+	*curr = obj;
+
+	return;
+}
+
+void
+insert_acl_subj_label(struct acl_subject_label *obj,
+		      struct acl_role_label *role)
+{
+	unsigned int index = gr_fhash(obj->inode, obj->device, role->subj_hash_size);
+	struct acl_subject_label **curr;
+
+	obj->prev = NULL;
+
+	curr = &role->subj_hash[index];
+	if (*curr != NULL)
+		(*curr)->prev = obj;
+
+	obj->next = *curr;
+	*curr = obj;
+
+	return;
+}
+
+/* derived from glibc fnmatch() 0: match, 1: no match*/
+
+static int
+glob_match(const char *p, const char *n)
+{
+	char c;
+
+	while ((c = *p++) != '\0') {
+	switch (c) {
+		case '?':
+			if (*n == '\0')
+				return 1;
+			else if (*n == '/')
+				return 1;
+			break;
+		case '\\':
+			if (*n != c)
+				return 1;
+			break;
+		case '*':
+			for (c = *p++; c == '?' || c == '*'; c = *p++) {
+				if (*n == '/')
+					return 1;
+				else if (c == '?') {
+					if (*n == '\0')
+						return 1;
+					else
+						++n;
+				}
+			}
+			if (c == '\0') {
+				return 0;
+			} else {
+				const char *endp;
+
+				if ((endp = strchr(n, '/')) == NULL)
+					endp = n + strlen(n);
+
+				if (c == '[') {
+					for (--p; n < endp; ++n)
+						if (!glob_match(p, n))
+							return 0;
+				} else if (c == '/') {
+					while (*n != '\0' && *n != '/')
+						++n;
+					if (*n == '/' && !glob_match(p, n + 1))
+						return 0;
+				} else {
+					for (--p; n < endp; ++n)
+						if (*n == c && !glob_match(p, n))
+							return 0;
+				}
+
+				return 1;
+			}
+		case '[':
+			{
+			int not;
+			char cold;
+
+			if (*n == '\0' || *n == '/')
+				return 1;
+
+			not = (*p == '!' || *p == '^');
+			if (not)
+				++p;
+
+			c = *p++;
+			for (;;) {
+				unsigned char fn = (unsigned char)*n;
+
+				if (c == '\0')
+					return 1;
+				else {
+					if (c == fn)
+						goto matched;
+					cold = c;
+					c = *p++;
+
+					if (c == '-' && *p != ']') {
+						unsigned char cend = *p++;
+
+						if (cend == '\0')
+							return 1;
+
+						if (cold <= fn && fn <= cend)
+							goto matched;
+
+						c = *p++;
+					}
+				}
+
+				if (c == ']')
+					break;
+			}
+			if (!not)
+				return 1;
+			break;
+		matched:
+			while (c != ']') {
+				if (c == '\0')
+					return 1;
+
+				c = *p++;
+			}
+			if (not)
+				return 1;
+		}
+		break;
+	default:
+		if (c != *n)
+			return 1;
+	}
+
+	++n;
+	}
+
+	if (*n == '\0')
+		return 0;
+
+	if (*n == '/')
+		return 0;
+
+	return 1;
+}
+
+static struct acl_object_label *
+chk_glob_label(struct acl_object_label *globbed,
+	const struct dentry *dentry, const struct vfsmount *mnt, char **path)
+{
+	struct acl_object_label *tmp;
+
+	if (*path == NULL)
+		*path = gr_to_filename_nolock(dentry, mnt);
+
+	tmp = globbed;
+
+	while (tmp) {
+		if (!glob_match(tmp->filename, *path))
+			return tmp;
+		tmp = tmp->next;
+	}
+
+	return NULL;
+}
+
+static struct acl_object_label *
+__full_lookup(const struct dentry *orig_dentry, const struct vfsmount *orig_mnt,
+	    const u64 curr_ino, const dev_t curr_dev,
+	    const struct acl_subject_label *subj, char **path, const int checkglob)
+{
+	struct acl_subject_label *tmpsubj;
+	struct acl_object_label *retval;
+	struct acl_object_label *retval2;
+
+	tmpsubj = (struct acl_subject_label *) subj;
+	read_lock(&gr_inode_lock);
+	do {
+		retval = lookup_acl_obj_label(curr_ino, curr_dev, tmpsubj);
+		if (retval) {
+			if (checkglob && retval->globbed) {
+				retval2 = chk_glob_label(retval->globbed, orig_dentry, orig_mnt, path);
+				if (retval2)
+					retval = retval2;
+			}
+			break;
+		}
+	} while ((tmpsubj = tmpsubj->parent_subject));
+	read_unlock(&gr_inode_lock);
+
+	return retval;
+}
+
+static struct acl_object_label *
+full_lookup(const struct dentry *orig_dentry, const struct vfsmount *orig_mnt,
+	    struct dentry *curr_dentry,
+	    const struct acl_subject_label *subj, char **path, const int checkglob)
+{
+	int newglob = checkglob;
+	u64 inode;
+	dev_t device;
+
+	/* if we aren't checking a subdirectory of the original path yet, don't do glob checking
+	   as we don't want a / * rule to match instead of the / object
+	   don't do this for create lookups that call this function though, since they're looking up
+	   on the parent and thus need globbing checks on all paths
+	*/
+	if (orig_dentry == curr_dentry && newglob != GR_CREATE_GLOB)
+		newglob = GR_NO_GLOB;
+
+	spin_lock(&curr_dentry->d_lock);
+	inode = __get_ino(curr_dentry);
+	device = __get_dev(curr_dentry);
+	spin_unlock(&curr_dentry->d_lock);
+
+	return __full_lookup(orig_dentry, orig_mnt, inode, device, subj, path, newglob);
+}
+
+#ifdef CONFIG_HUGETLBFS
+static inline bool
+is_hugetlbfs_mnt(const struct vfsmount *mnt)
+{
+	int i;
+	for (i = 0; i < HUGE_MAX_HSTATE; i++) {
+		if (unlikely(hugetlbfs_vfsmount[i] == mnt))
+			return true;
+	}
+
+	return false;
+}
+#endif
+
+static struct acl_object_label *
+__chk_obj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
+	      const struct acl_subject_label *subj, char *path, const int checkglob)
+{
+	struct dentry *dentry = (struct dentry *) l_dentry;
+	struct vfsmount *mnt = (struct vfsmount *) l_mnt;
+	struct inode * inode = d_backing_inode(dentry);
+	struct mount *real_mnt = real_mount(mnt);
+	struct acl_object_label *retval;
+	struct dentry *parent;
+
+	read_seqlock_excl(&mount_lock);
+	write_seqlock(&rename_lock);
+
+	if (unlikely((mnt == shm_mnt && inode->i_nlink == 0) || mnt == pipe_mnt ||
+#ifdef CONFIG_NET
+	    mnt == sock_mnt ||
+#endif
+#ifdef CONFIG_HUGETLBFS
+	    (is_hugetlbfs_mnt(mnt) && inode->i_nlink == 0) ||
+#endif
+		/* ignore Eric Biederman */
+	    IS_PRIVATE(inode))) {
+		retval = (subj->mode & GR_SHMEXEC) ? fakefs_obj_rwx : fakefs_obj_rw;
+		goto out;
+	}
+
+	for (;;) {
+		if (dentry == gr_real_root.dentry && mnt == gr_real_root.mnt)
+			break;
+
+		if (dentry == mnt->mnt_root || IS_ROOT(dentry)) {
+			if (!mnt_has_parent(real_mnt))
+				break;
+
+			retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path, checkglob);
+			if (retval != NULL)
+				goto out;
+
+			dentry = real_mnt->mnt_mountpoint;
+			real_mnt = real_mnt->mnt_parent;
+			mnt = &real_mnt->mnt;
+			continue;
+		}
+
+		parent = dentry->d_parent;
+		retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path, checkglob);
+		if (retval != NULL)
+			goto out;
+
+		dentry = parent;
+	}
+
+	retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path, checkglob);
+
+	/* gr_real_root is pinned so we don't have to hold a reference */
+	if (retval == NULL)
+		retval = full_lookup(l_dentry, l_mnt, gr_real_root.dentry, subj, &path, checkglob);
+out:
+	write_sequnlock(&rename_lock);
+	read_sequnlock_excl(&mount_lock);
+
+	BUG_ON(retval == NULL);
+
+	return retval;
+}
+
+static struct acl_object_label *
+chk_obj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
+	      const struct acl_subject_label *subj)
+{
+	char *path = NULL;
+	return __chk_obj_label(l_dentry, l_mnt, subj, path, GR_REG_GLOB);
+}
+
+static struct acl_object_label *
+chk_obj_label_noglob(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
+	      const struct acl_subject_label *subj)
+{
+	char *path = NULL;
+	return __chk_obj_label(l_dentry, l_mnt, subj, path, GR_NO_GLOB);
+}
+
+static struct acl_object_label *
+chk_obj_create_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
+		     const struct acl_subject_label *subj, char *path)
+{
+	return __chk_obj_label(l_dentry, l_mnt, subj, path, GR_CREATE_GLOB);
+}
+
+struct acl_subject_label *
+chk_subj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
+	       const struct acl_role_label *role)
+{
+	struct dentry *dentry = (struct dentry *) l_dentry;
+	struct vfsmount *mnt = (struct vfsmount *) l_mnt;
+	struct mount *real_mnt = real_mount(mnt);
+	struct acl_subject_label *retval;
+	struct dentry *parent;
+
+	read_seqlock_excl(&mount_lock);
+	write_seqlock(&rename_lock);
+
+	for (;;) {
+		if (dentry == gr_real_root.dentry && mnt == gr_real_root.mnt)
+			break;
+		if (dentry == mnt->mnt_root || IS_ROOT(dentry)) {
+			if (!mnt_has_parent(real_mnt))
+				break;
+
+			spin_lock(&dentry->d_lock);
+			read_lock(&gr_inode_lock);
+			retval =
+				lookup_acl_subj_label(__get_ino(dentry),
+						__get_dev(dentry), role);
+			read_unlock(&gr_inode_lock);
+			spin_unlock(&dentry->d_lock);
+			if (retval != NULL)
+				goto out;
+
+			dentry = real_mnt->mnt_mountpoint;
+			real_mnt = real_mnt->mnt_parent;
+			mnt = &real_mnt->mnt;
+			continue;
+		}
+
+		spin_lock(&dentry->d_lock);
+		read_lock(&gr_inode_lock);
+		retval = lookup_acl_subj_label(__get_ino(dentry),
+					  __get_dev(dentry), role);
+		read_unlock(&gr_inode_lock);
+		parent = dentry->d_parent;
+		spin_unlock(&dentry->d_lock);
+
+		if (retval != NULL)
+			goto out;
+
+		dentry = parent;
+	}
+
+	spin_lock(&dentry->d_lock);
+	read_lock(&gr_inode_lock);
+	retval = lookup_acl_subj_label(__get_ino(dentry),
+				  __get_dev(dentry), role);
+	read_unlock(&gr_inode_lock);
+	spin_unlock(&dentry->d_lock);
+
+	if (unlikely(retval == NULL)) {
+		/* gr_real_root is pinned, we don't need to hold a reference */
+		read_lock(&gr_inode_lock);
+		retval = lookup_acl_subj_label(__get_ino(gr_real_root.dentry),
+					  __get_dev(gr_real_root.dentry), role);
+		read_unlock(&gr_inode_lock);
+	}
+out:
+	write_sequnlock(&rename_lock);
+	read_sequnlock_excl(&mount_lock);
+
+	BUG_ON(retval == NULL);
+
+	return retval;
+}
+
+void
+assign_special_role(const char *rolename)
+{
+	struct acl_object_label *obj;
+	struct acl_role_label *r;
+	struct acl_role_label *assigned = NULL;
+	struct task_struct *tsk;
+	struct file *filp;
+
+	FOR_EACH_ROLE_START(r)
+		if (!strcmp(rolename, r->rolename) &&
+		    (r->roletype & GR_ROLE_SPECIAL)) {
+			assigned = r;
+			break;
+		}
+	FOR_EACH_ROLE_END(r)
+
+	if (!assigned)
+		return;
+
+	read_lock(&tasklist_lock);
+	read_lock(&grsec_exec_file_lock);
+
+	tsk = current->real_parent;
+	if (tsk == NULL)
+		goto out_unlock;
+
+	filp = tsk->exec_file;
+	if (filp == NULL)
+		goto out_unlock;
+
+	tsk->is_writable = 0;
+	tsk->inherited = 0;
+
+	tsk->acl_sp_role = 1;
+	tsk->acl_role_id = ++acl_sp_role_value;
+	tsk->role = assigned;
+	tsk->acl = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, tsk->role);
+
+	/* ignore additional mmap checks for processes that are writable
+	   by the default ACL */
+	obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, running_polstate.default_role->root_label);
+	if (unlikely(obj->mode & GR_WRITE))
+		tsk->is_writable = 1;
+	obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, tsk->role->root_label);
+	if (unlikely(obj->mode & GR_WRITE))
+		tsk->is_writable = 1;
+
+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
+	printk(KERN_ALERT "Assigning special role:%s subject:%s to process (%s:%d)\n", tsk->role->rolename,
+			tsk->acl->filename, tsk->comm, task_pid_nr(tsk));
+#endif
+
+out_unlock:
+	read_unlock(&grsec_exec_file_lock);
+	read_unlock(&tasklist_lock);
+	return;
+}
+
+
+static void
+gr_log_learn(const struct dentry *dentry, const struct vfsmount *mnt, const __u32 mode)
+{
+	struct task_struct *task = current;
+	const struct cred *cred = current_cred();
+
+	security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename, task->role->roletype,
+		       GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid), task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry,
+		       task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename,
+		       1UL, 1UL, gr_to_filename(dentry, mnt), (unsigned long) mode, &task->signal->saved_ip);
+
+	return;
+}
+
+static void
+gr_log_learn_uid_change(const kuid_t real, const kuid_t effective, const kuid_t fs)
+{
+	struct task_struct *task = current;
+	const struct cred *cred = current_cred();
+
+	security_learn(GR_ID_LEARN_MSG, task->role->rolename, task->role->roletype,
+		       GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid), task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry,
+		       task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename,
+		       'u', GR_GLOBAL_UID(real), GR_GLOBAL_UID(effective), GR_GLOBAL_UID(fs), &task->signal->saved_ip);
+
+	return;
+}
+
+static void
+gr_log_learn_gid_change(const kgid_t real, const kgid_t effective, const kgid_t fs)
+{
+	struct task_struct *task = current;
+	const struct cred *cred = current_cred();
+
+	security_learn(GR_ID_LEARN_MSG, task->role->rolename, task->role->roletype,
+		       GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid), task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry,
+		       task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename,
+		       'g', GR_GLOBAL_GID(real), GR_GLOBAL_GID(effective), GR_GLOBAL_GID(fs), &task->signal->saved_ip);
+
+	return;
+}
+
+static void
+gr_set_proc_res(struct task_struct *task)
+{
+	struct acl_subject_label *proc;
+	unsigned short i;
+
+	proc = task->acl;
+
+	if (proc->mode & (GR_LEARN | GR_INHERITLEARN))
+		return;
+
+	for (i = 0; i < RLIM_NLIMITS; i++) {
+		unsigned long rlim_cur, rlim_max;
+
+		if (!(proc->resmask & (1U << i)))
+			continue;
+
+		rlim_cur = proc->res[i].rlim_cur;
+		rlim_max = proc->res[i].rlim_max;
+
+		if (i == RLIMIT_NOFILE) {
+			unsigned long saved_sysctl_nr_open = sysctl_nr_open;
+			if (rlim_cur > saved_sysctl_nr_open)
+				rlim_cur = saved_sysctl_nr_open;
+			if (rlim_max > saved_sysctl_nr_open)
+				rlim_max = saved_sysctl_nr_open;
+		}
+
+		task->signal->rlim[i].rlim_cur = rlim_cur;
+		task->signal->rlim[i].rlim_max = rlim_max;
+
+		if (i == RLIMIT_CPU)
+			update_rlimit_cpu(task, rlim_cur);
+	}
+
+	return;
+}
+
+/* both of the below must be called with
+	rcu_read_lock();
+	read_lock(&tasklist_lock);
+	read_lock(&grsec_exec_file_lock);
+   except in the case of gr_set_role_label() (for __gr_get_subject_for_task)
+*/
+
+struct acl_subject_label *__gr_get_subject_for_task(const struct gr_policy_state *state, struct task_struct *task, const char *filename, int fallback)
+{
+	char *tmpname;
+	struct acl_subject_label *tmpsubj;
+	struct file *filp;
+	struct name_entry *nmatch;
+
+	filp = task->exec_file;
+	if (filp == NULL)
+		return NULL;
+
+	/* the following is to apply the correct subject
+	   on binaries running when the RBAC system
+	   is enabled, when the binaries have been
+	   replaced or deleted since their execution
+	   -----
+	   when the RBAC system starts, the inode/dev
+	   from exec_file will be one the RBAC system
+	   is unaware of.  It only knows the inode/dev
+	   of the present file on disk, or the absence
+	   of it.
+	*/
+
+	if (filename)
+		nmatch = __lookup_name_entry(state, filename);
+	else {
+		preempt_disable();
+		tmpname = gr_to_filename_rbac(filp->f_path.dentry, filp->f_path.mnt);
+
+		nmatch = __lookup_name_entry(state, tmpname);
+		preempt_enable();
+	}
+	tmpsubj = NULL;
+	if (nmatch) {
+		if (nmatch->deleted)
+			tmpsubj = lookup_acl_subj_label_deleted(nmatch->inode, nmatch->device, task->role);
+		else
+			tmpsubj = lookup_acl_subj_label(nmatch->inode, nmatch->device, task->role);
+	}
+	/* this also works for the reload case -- if we don't match a potentially inherited subject
+	   then we fall back to a normal lookup based on the binary's ino/dev
+	*/
+	if (tmpsubj == NULL && fallback)
+		tmpsubj = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, task->role);
+
+	return tmpsubj;
+}
+
+static struct acl_subject_label *gr_get_subject_for_task(struct task_struct *task, const char *filename, int fallback)
+{
+	return __gr_get_subject_for_task(&running_polstate, task, filename, fallback);
+}
+
+void __gr_apply_subject_to_task(const struct gr_policy_state *state, struct task_struct *task, struct acl_subject_label *subj)
+{
+	struct acl_object_label *obj;
+	struct file *filp;
+
+	filp = task->exec_file;
+
+	task->acl = subj;
+	task->is_writable = 0;
+	/* ignore additional mmap checks for processes that are writable 
+	   by the default ACL */
+	obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, state->default_role->root_label);
+	if (unlikely(obj->mode & GR_WRITE))
+		task->is_writable = 1;
+	obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, task->role->root_label);
+	if (unlikely(obj->mode & GR_WRITE))
+		task->is_writable = 1;
+
+	gr_set_proc_res(task);
+
+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
+	printk(KERN_ALERT "gr_set_acls for (%s:%d): role:%s, subject:%s\n", task->comm, task_pid_nr(task), task->role->rolename, task->acl->filename);
+#endif
+}
+
+static void gr_apply_subject_to_task(struct task_struct *task, struct acl_subject_label *subj)
+{
+	__gr_apply_subject_to_task(&running_polstate, task, subj);
+}
+
+__u32
+gr_search_file(const struct dentry * dentry, const __u32 mode,
+	       const struct vfsmount * mnt)
+{
+	__u32 retval = mode;
+	struct acl_subject_label *curracl;
+	struct acl_object_label *currobj;
+
+	if (unlikely(!(gr_status & GR_READY)))
+		return (mode & ~GR_AUDITS);
+
+	curracl = current->acl;
+
+	currobj = chk_obj_label(dentry, mnt, curracl);
+	retval = currobj->mode & mode;
+
+	/* if we're opening a specified transfer file for writing
+	   (e.g. /dev/initctl), then transfer our role to init
+	*/
+	if (unlikely(currobj->mode & GR_INIT_TRANSFER && retval & GR_WRITE &&
+		     current->role->roletype & GR_ROLE_PERSIST)) {
+		struct task_struct *task = init_pid_ns.child_reaper;
+
+		if (task->role != current->role) {
+			struct acl_subject_label *subj;
+
+			task->acl_sp_role = 0;
+			task->acl_role_id = current->acl_role_id;
+			task->role = current->role;
+			rcu_read_lock();
+			read_lock(&grsec_exec_file_lock);
+			subj = gr_get_subject_for_task(task, NULL, 1);
+			gr_apply_subject_to_task(task, subj);
+			read_unlock(&grsec_exec_file_lock);
+			rcu_read_unlock();
+			gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_INIT_TRANSFER_MSG);
+		}
+	}
+
+	if (unlikely
+	    ((curracl->mode & (GR_LEARN | GR_INHERITLEARN)) && !(mode & GR_NOPTRACE)
+	     && (retval != (mode & ~(GR_AUDITS | GR_SUPPRESS))))) {
+		__u32 new_mode = mode;
+
+		new_mode &= ~(GR_AUDITS | GR_SUPPRESS);
+
+		retval = new_mode;
+
+		if (new_mode & GR_EXEC && curracl->mode & GR_INHERITLEARN)
+			new_mode |= GR_INHERIT;
+
+		if (!(mode & GR_NOLEARN))
+			gr_log_learn(dentry, mnt, new_mode);
+	}
+
+	return retval;
+}
+
+struct acl_object_label *gr_get_create_object(const struct dentry *new_dentry,
+					      const struct dentry *parent,
+					      const struct vfsmount *mnt)
+{
+	struct name_entry *match;
+	struct acl_object_label *matchpo;
+	struct acl_subject_label *curracl;
+	char *path;
+
+	if (unlikely(!(gr_status & GR_READY)))
+		return NULL;
+
+	preempt_disable();
+	path = gr_to_filename_rbac(new_dentry, mnt);
+	match = lookup_name_entry_create(path);
+
+	curracl = current->acl;
+
+	if (match) {
+		read_lock(&gr_inode_lock);
+		matchpo = lookup_acl_obj_label_create(match->inode, match->device, curracl);
+		read_unlock(&gr_inode_lock);
+
+		if (matchpo) {
+			preempt_enable();
+			return matchpo;
+		}
+	}
+
+	// lookup parent
+
+	matchpo = chk_obj_create_label(parent, mnt, curracl, path);
+
+	preempt_enable();
+	return matchpo;
+}
+
+__u32
+gr_check_create(const struct dentry * new_dentry, const struct dentry * parent,
+		const struct vfsmount * mnt, const __u32 mode)
+{
+	struct acl_object_label *matchpo;
+	__u32 retval;
+
+	if (unlikely(!(gr_status & GR_READY)))
+		return (mode & ~GR_AUDITS);
+
+	matchpo = gr_get_create_object(new_dentry, parent, mnt);
+
+	retval = matchpo->mode & mode;
+
+	if ((retval != (mode & ~(GR_AUDITS | GR_SUPPRESS)))
+	    && (current->acl->mode & (GR_LEARN | GR_INHERITLEARN))) {
+		__u32 new_mode = mode;
+
+		new_mode &= ~(GR_AUDITS | GR_SUPPRESS);
+
+		gr_log_learn(new_dentry, mnt, new_mode);
+		return new_mode;
+	}
+
+	return retval;
+}
+
+__u32
+gr_check_link(const struct dentry * new_dentry,
+	      const struct dentry * parent_dentry,
+	      const struct vfsmount * parent_mnt,
+	      const struct dentry * old_dentry, const struct vfsmount * old_mnt)
+{
+	struct acl_object_label *obj;
+	__u32 oldmode, newmode;
+	__u32 needmode;
+	__u32 checkmodes = GR_FIND | GR_APPEND | GR_WRITE | GR_EXEC | GR_SETID | GR_READ |
+			   GR_DELETE | GR_INHERIT;
+
+	if (unlikely(!(gr_status & GR_READY)))
+		return (GR_CREATE | GR_LINK);
+
+	obj = chk_obj_label(old_dentry, old_mnt, current->acl);
+	oldmode = obj->mode;
+
+	obj = gr_get_create_object(new_dentry, parent_dentry, parent_mnt);
+	newmode = obj->mode;
+
+	needmode = newmode & checkmodes;
+
+	// old name for hardlink must have at least the permissions of the new name
+	if ((oldmode & needmode) != needmode)
+		goto bad;
+
+	// if old name had restrictions/auditing, make sure the new name does as well
+	needmode = oldmode & (GR_NOPTRACE | GR_PTRACERD | GR_INHERIT | GR_AUDITS);
+
+	// don't allow hardlinking of suid/sgid/fcapped files without permission
+	if (is_privileged_binary(old_dentry))
+		needmode |= GR_SETID;
+
+	if ((newmode & needmode) != needmode)
+		goto bad;
+
+	// enforce minimum permissions
+	if ((newmode & (GR_CREATE | GR_LINK)) == (GR_CREATE | GR_LINK))
+		return newmode;
+bad:
+	needmode = oldmode;
+	if (is_privileged_binary(old_dentry))
+		needmode |= GR_SETID;
+	
+	if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN)) {
+		gr_log_learn(old_dentry, old_mnt, needmode | GR_CREATE | GR_LINK);
+		return (GR_CREATE | GR_LINK);
+	} else if (newmode & GR_SUPPRESS)
+		return GR_SUPPRESS;
+	else
+		return 0;
+}
+
+int
+gr_check_hidden_task(const struct task_struct *task)
+{
+	if (unlikely(!(gr_status & GR_READY)))
+		return 0;
+
+	if (!(task->acl->mode & GR_PROCFIND) && !(current->acl->mode & GR_VIEW))
+		return 1;
+
+	return 0;
+}
+
+int
+gr_check_protected_task(const struct task_struct *task)
+{
+	if (unlikely(!(gr_status & GR_READY) || !task))
+		return 0;
+
+	if ((task->acl->mode & GR_PROTECTED) && !(current->acl->mode & GR_KILL) &&
+	    task->acl != current->acl)
+		return 1;
+
+	return 0;
+}
+
+int
+gr_check_protected_task_fowner(struct pid *pid, enum pid_type type)
+{
+	struct task_struct *p;
+	int ret = 0;
+
+	if (unlikely(!(gr_status & GR_READY) || !pid))
+		return ret;
+
+	read_lock(&tasklist_lock);
+	do_each_pid_task(pid, type, p) {
+		if ((p->acl->mode & GR_PROTECTED) && !(current->acl->mode & GR_KILL) &&
+		    p->acl != current->acl) {
+			ret = 1;
+			goto out;
+		}
+	} while_each_pid_task(pid, type, p);
+out:
+	read_unlock(&tasklist_lock);
+
+	return ret;
+}
+
+void
+gr_copy_label(struct task_struct *tsk)
+{
+	struct task_struct *p = current;
+
+	tsk->inherited = p->inherited;
+	tsk->acl_sp_role = 0;
+	tsk->acl_role_id = p->acl_role_id;
+	tsk->acl = p->acl;
+	tsk->role = p->role;
+	tsk->signal->used_accept = 0;
+	tsk->signal->curr_ip = p->signal->curr_ip;
+	tsk->signal->saved_ip = p->signal->saved_ip;
+	if (p->exec_file)
+		get_file(p->exec_file);
+	tsk->exec_file = p->exec_file;
+	tsk->is_writable = p->is_writable;
+	if (unlikely(p->signal->used_accept)) {
+		p->signal->curr_ip = 0;
+		p->signal->saved_ip = 0;
+	}
+
+	return;
+}
+
+extern int gr_process_kernel_setuid_ban(struct user_struct *user);
+
+int
+gr_check_user_change(kuid_t real, kuid_t effective, kuid_t fs)
+{
+	unsigned int i;
+	__u16 num;
+	uid_t *uidlist;
+	uid_t curuid;
+	int realok = 0;
+	int effectiveok = 0;
+	int fsok = 0;
+	uid_t globalreal, globaleffective, globalfs;
+
+#if defined(CONFIG_GRKERNSEC_KERN_LOCKOUT)
+	struct user_struct *user;
+
+	if (!uid_valid(real))
+		goto skipit;
+
+	/* find user based on global namespace */
+
+	globalreal = GR_GLOBAL_UID(real);
+
+	user = find_user(make_kuid(&init_user_ns, globalreal));
+	if (user == NULL)
+		goto skipit;
+
+	if (gr_process_kernel_setuid_ban(user)) {
+		/* for find_user */
+		free_uid(user);
+		return 1;
+	}
+
+	/* for find_user */
+	free_uid(user);
+
+skipit:
+#endif
+
+	if (unlikely(!(gr_status & GR_READY)))
+		return 0;
+
+	if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN))
+		gr_log_learn_uid_change(real, effective, fs);
+
+	num = current->acl->user_trans_num;
+	uidlist = current->acl->user_transitions;
+
+	if (uidlist == NULL)
+		return 0;
+
+	if (!uid_valid(real)) {
+		realok = 1;
+		globalreal = (uid_t)-1;		
+	} else {
+		globalreal = GR_GLOBAL_UID(real);		
+	}
+	if (!uid_valid(effective)) {
+		effectiveok = 1;
+		globaleffective = (uid_t)-1;
+	} else {
+		globaleffective = GR_GLOBAL_UID(effective);
+	}
+	if (!uid_valid(fs)) {
+		fsok = 1;
+		globalfs = (uid_t)-1;
+	} else {
+		globalfs = GR_GLOBAL_UID(fs);
+	}
+
+	if (current->acl->user_trans_type & GR_ID_ALLOW) {
+		for (i = 0; i < num; i++) {
+			curuid = uidlist[i];
+			if (globalreal == curuid)
+				realok = 1;
+			if (globaleffective == curuid)
+				effectiveok = 1;
+			if (globalfs == curuid)
+				fsok = 1;
+		}
+	} else if (current->acl->user_trans_type & GR_ID_DENY) {
+		for (i = 0; i < num; i++) {
+			curuid = uidlist[i];
+			if (globalreal == curuid)
+				break;
+			if (globaleffective == curuid)
+				break;
+			if (globalfs == curuid)
+				break;
+		}
+		/* not in deny list */
+		if (i == num) {
+			realok = 1;
+			effectiveok = 1;
+			fsok = 1;
+		}
+	}
+
+	if (realok && effectiveok && fsok)
+		return 0;
+	else {
+		gr_log_int(GR_DONT_AUDIT, GR_USRCHANGE_ACL_MSG, realok ? (effectiveok ? (fsok ? 0 : globalfs) : globaleffective) : globalreal);
+		return 1;
+	}
+}
+
+int
+gr_check_group_change(kgid_t real, kgid_t effective, kgid_t fs)
+{
+	unsigned int i;
+	__u16 num;
+	gid_t *gidlist;
+	gid_t curgid;
+	int realok = 0;
+	int effectiveok = 0;
+	int fsok = 0;
+	gid_t globalreal, globaleffective, globalfs;
+
+	if (unlikely(!(gr_status & GR_READY)))
+		return 0;
+
+	if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN))
+		gr_log_learn_gid_change(real, effective, fs);
+
+	num = current->acl->group_trans_num;
+	gidlist = current->acl->group_transitions;
+
+	if (gidlist == NULL)
+		return 0;
+
+	if (!gid_valid(real)) {
+		realok = 1;
+		globalreal = (gid_t)-1;		
+	} else {
+		globalreal = GR_GLOBAL_GID(real);
+	}
+	if (!gid_valid(effective)) {
+		effectiveok = 1;
+		globaleffective = (gid_t)-1;		
+	} else {
+		globaleffective = GR_GLOBAL_GID(effective);
+	}
+	if (!gid_valid(fs)) {
+		fsok = 1;
+		globalfs = (gid_t)-1;		
+	} else {
+		globalfs = GR_GLOBAL_GID(fs);
+	}
+
+	if (current->acl->group_trans_type & GR_ID_ALLOW) {
+		for (i = 0; i < num; i++) {
+			curgid = gidlist[i];
+			if (globalreal == curgid)
+				realok = 1;
+			if (globaleffective == curgid)
+				effectiveok = 1;
+			if (globalfs == curgid)
+				fsok = 1;
+		}
+	} else if (current->acl->group_trans_type & GR_ID_DENY) {
+		for (i = 0; i < num; i++) {
+			curgid = gidlist[i];
+			if (globalreal == curgid)
+				break;
+			if (globaleffective == curgid)
+				break;
+			if (globalfs == curgid)
+				break;
+		}
+		/* not in deny list */
+		if (i == num) {
+			realok = 1;
+			effectiveok = 1;
+			fsok = 1;
+		}
+	}
+
+	if (realok && effectiveok && fsok)
+		return 0;
+	else {
+		gr_log_int(GR_DONT_AUDIT, GR_GRPCHANGE_ACL_MSG, realok ? (effectiveok ? (fsok ? 0 : globalfs) : globaleffective) : globalreal);
+		return 1;
+	}
+}
+
+extern int gr_acl_is_capable(const int cap);
+
+void
+gr_set_role_label(struct task_struct *task, const kuid_t kuid, const kgid_t kgid)
+{
+	struct acl_role_label *role = task->role;
+	struct acl_role_label *origrole = role;
+	struct acl_subject_label *subj = NULL;
+	struct acl_object_label *obj;
+	struct file *filp;
+	uid_t uid;
+	gid_t gid;
+
+	if (unlikely(!(gr_status & GR_READY)))
+		return;
+
+	uid = GR_GLOBAL_UID(kuid);
+	gid = GR_GLOBAL_GID(kgid);
+
+	filp = task->exec_file;
+
+	/* kernel process, we'll give them the kernel role */
+	if (unlikely(!filp)) {
+		task->role = running_polstate.kernel_role;
+		task->acl = running_polstate.kernel_role->root_label;
+		return;
+	} else if (!task->role || !(task->role->roletype & GR_ROLE_SPECIAL)) {
+		/* save the current ip at time of role lookup so that the proper
+		   IP will be learned for role_allowed_ip */
+		task->signal->saved_ip = task->signal->curr_ip;
+		role = lookup_acl_role_label(task, uid, gid);
+	}
+
+	/* don't change the role if we're not a privileged process */
+	if (role && task->role != role &&
+	    (((role->roletype & GR_ROLE_USER) && !gr_acl_is_capable(CAP_SETUID)) ||
+	     ((role->roletype & GR_ROLE_GROUP) && !gr_acl_is_capable(CAP_SETGID))))
+		return;
+
+	task->role = role;
+
+	if (task->inherited) {
+		/* if we reached our subject through inheritance, then first see
+		   if there's a subject of the same name in the new role that has
+		   an object that would result in the same inherited subject
+		*/
+		subj = gr_get_subject_for_task(task, task->acl->filename, 0);
+		if (subj) {
+			obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, subj);
+			if (!(obj->mode & GR_INHERIT))
+				subj = NULL;
+		}
+		
+	}
+	if (subj == NULL) {
+		/* otherwise:
+		   perform subject lookup in possibly new role
+		   we can use this result below in the case where role == task->role
+		*/
+		subj = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, role);
+	}
+
+	/* if we changed uid/gid, but result in the same role
+	   and are using inheritance, don't lose the inherited subject
+	   if current subject is other than what normal lookup
+	   would result in, we arrived via inheritance, don't
+	   lose subject
+	*/
+	if (role != origrole || (!(task->acl->mode & GR_INHERITLEARN) &&
+				   (subj == task->acl)))
+		task->acl = subj;
+
+	/* leave task->inherited unaffected */
+
+	task->is_writable = 0;
+
+	/* ignore additional mmap checks for processes that are writable 
+	   by the default ACL */
+	obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, running_polstate.default_role->root_label);
+	if (unlikely(obj->mode & GR_WRITE))
+		task->is_writable = 1;
+	obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, task->role->root_label);
+	if (unlikely(obj->mode & GR_WRITE))
+		task->is_writable = 1;
+
+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
+	printk(KERN_ALERT "Set role label for (%s:%d): role:%s, subject:%s\n", task->comm, task_pid_nr(task), task->role->rolename, task->acl->filename);
+#endif
+
+	gr_set_proc_res(task);
+
+	return;
+}
+
+int
+gr_set_proc_label(const struct dentry *dentry, const struct vfsmount *mnt,
+		  const int unsafe_flags)
+{
+	struct task_struct *task = current;
+	struct acl_subject_label *newacl;
+	struct acl_object_label *obj;
+	__u32 retmode;
+
+	if (unlikely(!(gr_status & GR_READY)))
+		return 0;
+
+	newacl = chk_subj_label(dentry, mnt, task->role);
+
+	/* special handling for if we did an strace -f -p <pid> from an admin role, where pid then
+	   did an exec
+	*/
+	rcu_read_lock();
+	read_lock(&tasklist_lock);
+	if (task->ptrace && task->parent && ((task->parent->role->roletype & GR_ROLE_GOD) ||
+	    (task->parent->acl->mode & GR_POVERRIDE))) {
+		read_unlock(&tasklist_lock);
+		rcu_read_unlock();
+		goto skip_check;
+	}
+	read_unlock(&tasklist_lock);
+	rcu_read_unlock();
+
+	if (unsafe_flags && !(task->acl->mode & GR_POVERRIDE) && (task->acl != newacl) &&
+	     !(task->role->roletype & GR_ROLE_GOD) &&
+	     !gr_search_file(dentry, GR_PTRACERD, mnt) &&
+	     !(task->acl->mode & (GR_LEARN | GR_INHERITLEARN))) {
+		if (unsafe_flags & LSM_UNSAFE_SHARE)
+			gr_log_fs_generic(GR_DONT_AUDIT, GR_UNSAFESHARE_EXEC_ACL_MSG, dentry, mnt);
+		else
+			gr_log_fs_generic(GR_DONT_AUDIT, GR_PTRACE_EXEC_ACL_MSG, dentry, mnt);
+		return -EACCES;
+	}
+
+skip_check:
+
+	obj = chk_obj_label(dentry, mnt, task->acl);
+	retmode = obj->mode & (GR_INHERIT | GR_AUDIT_INHERIT);
+
+	if (!(task->acl->mode & GR_INHERITLEARN) &&
+	    ((newacl->mode & GR_LEARN) || !(retmode & GR_INHERIT))) {
+		if (obj->nested)
+			task->acl = obj->nested;
+		else
+			task->acl = newacl;
+		task->inherited = 0;
+	} else {
+		task->inherited = 1;
+		if (retmode & GR_INHERIT && retmode & GR_AUDIT_INHERIT)
+			gr_log_str_fs(GR_DO_AUDIT, GR_INHERIT_ACL_MSG, task->acl->filename, dentry, mnt);
+	}
+
+	task->is_writable = 0;
+
+	/* ignore additional mmap checks for processes that are writable 
+	   by the default ACL */
+	obj = chk_obj_label(dentry, mnt, running_polstate.default_role->root_label);
+	if (unlikely(obj->mode & GR_WRITE))
+		task->is_writable = 1;
+	obj = chk_obj_label(dentry, mnt, task->role->root_label);
+	if (unlikely(obj->mode & GR_WRITE))
+		task->is_writable = 1;
+
+	gr_set_proc_res(task);
+
+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
+	printk(KERN_ALERT "Set subject label for (%s:%d): role:%s, subject:%s\n", task->comm, task_pid_nr(task), task->role->rolename, task->acl->filename);
+#endif
+	return 0;
+}
+
+/* always called with valid inodev ptr */
+static void
+do_handle_delete(struct inodev_entry *inodev, const u64 ino, const dev_t dev)
+{
+	struct acl_object_label *matchpo;
+	struct acl_subject_label *matchps;
+	struct acl_subject_label *subj;
+	struct acl_role_label *role;
+	unsigned int x;
+
+	FOR_EACH_ROLE_START(role)
+		FOR_EACH_SUBJECT_START(role, subj, x)
+			if ((matchpo = lookup_acl_obj_label(ino, dev, subj)) != NULL)
+				matchpo->mode |= GR_DELETED;
+		FOR_EACH_SUBJECT_END(subj,x)
+		FOR_EACH_NESTED_SUBJECT_START(role, subj)
+			/* nested subjects aren't in the role's subj_hash table */
+			if ((matchpo = lookup_acl_obj_label(ino, dev, subj)) != NULL)
+				matchpo->mode |= GR_DELETED;
+		FOR_EACH_NESTED_SUBJECT_END(subj)
+		if ((matchps = lookup_acl_subj_label(ino, dev, role)) != NULL)
+			matchps->mode |= GR_DELETED;
+	FOR_EACH_ROLE_END(role)
+
+	inodev->nentry->deleted = 1;
+
+	return;
+}
+
+void
+gr_handle_delete(const u64 ino, const dev_t dev)
+{
+	struct inodev_entry *inodev;
+
+	if (unlikely(!(gr_status & GR_READY)))
+		return;
+
+	write_lock(&gr_inode_lock);
+	inodev = lookup_inodev_entry(ino, dev);
+	if (inodev != NULL)
+		do_handle_delete(inodev, ino, dev);
+	write_unlock(&gr_inode_lock);
+
+	return;
+}
+
+static void
+update_acl_obj_label(const u64 oldinode, const dev_t olddevice,
+		     const u64 newinode, const dev_t newdevice,
+		     struct acl_subject_label *subj)
+{
+	unsigned int index = gr_fhash(oldinode, olddevice, subj->obj_hash_size);
+	struct acl_object_label *match;
+
+	match = subj->obj_hash[index];
+
+	while (match && (match->inode != oldinode ||
+	       match->device != olddevice ||
+	       !(match->mode & GR_DELETED)))
+		match = match->next;
+
+	if (match && (match->inode == oldinode)
+	    && (match->device == olddevice)
+	    && (match->mode & GR_DELETED)) {
+		if (match->prev == NULL) {
+			subj->obj_hash[index] = match->next;
+			if (match->next != NULL)
+				match->next->prev = NULL;
+		} else {
+			match->prev->next = match->next;
+			if (match->next != NULL)
+				match->next->prev = match->prev;
+		}
+		match->prev = NULL;
+		match->next = NULL;
+		match->inode = newinode;
+		match->device = newdevice;
+		match->mode &= ~GR_DELETED;
+
+		insert_acl_obj_label(match, subj);
+	}
+
+	return;
+}
+
+static void
+update_acl_subj_label(const u64 oldinode, const dev_t olddevice,
+		      const u64 newinode, const dev_t newdevice,
+		      struct acl_role_label *role)
+{
+	unsigned int index = gr_fhash(oldinode, olddevice, role->subj_hash_size);
+	struct acl_subject_label *match;
+
+	match = role->subj_hash[index];
+
+	while (match && (match->inode != oldinode ||
+	       match->device != olddevice ||
+	       !(match->mode & GR_DELETED)))
+		match = match->next;
+
+	if (match && (match->inode == oldinode)
+	    && (match->device == olddevice)
+	    && (match->mode & GR_DELETED)) {
+		if (match->prev == NULL) {
+			role->subj_hash[index] = match->next;
+			if (match->next != NULL)
+				match->next->prev = NULL;
+		} else {
+			match->prev->next = match->next;
+			if (match->next != NULL)
+				match->next->prev = match->prev;
+		}
+		match->prev = NULL;
+		match->next = NULL;
+		match->inode = newinode;
+		match->device = newdevice;
+		match->mode &= ~GR_DELETED;
+
+		insert_acl_subj_label(match, role);
+	}
+
+	return;
+}
+
+static void
+update_inodev_entry(const u64 oldinode, const dev_t olddevice,
+		    const u64 newinode, const dev_t newdevice)
+{
+	unsigned int index = gr_fhash(oldinode, olddevice, running_polstate.inodev_set.i_size);
+	struct inodev_entry *match;
+
+	match = running_polstate.inodev_set.i_hash[index];
+
+	while (match && (match->nentry->inode != oldinode ||
+	       match->nentry->device != olddevice || !match->nentry->deleted))
+		match = match->next;
+
+	if (match && (match->nentry->inode == oldinode)
+	    && (match->nentry->device == olddevice) &&
+	    match->nentry->deleted) {
+		if (match->prev == NULL) {
+			running_polstate.inodev_set.i_hash[index] = match->next;
+			if (match->next != NULL)
+				match->next->prev = NULL;
+		} else {
+			match->prev->next = match->next;
+			if (match->next != NULL)
+				match->next->prev = match->prev;
+		}
+		match->prev = NULL;
+		match->next = NULL;
+		match->nentry->inode = newinode;
+		match->nentry->device = newdevice;
+		match->nentry->deleted = 0;
+
+		insert_inodev_entry(match);
+	}
+
+	return;
+}
+
+static void
+__do_handle_create(const struct name_entry *matchn, u64 ino, dev_t dev)
+{
+	struct acl_subject_label *subj;
+	struct acl_role_label *role;
+	unsigned int x;
+
+	FOR_EACH_ROLE_START(role)
+		update_acl_subj_label(matchn->inode, matchn->device, ino, dev, role);
+
+		FOR_EACH_NESTED_SUBJECT_START(role, subj)
+			if ((subj->inode == ino) && (subj->device == dev)) {
+				subj->inode = ino;
+				subj->device = dev;
+			}
+			/* nested subjects aren't in the role's subj_hash table */
+			update_acl_obj_label(matchn->inode, matchn->device,
+					     ino, dev, subj);
+		FOR_EACH_NESTED_SUBJECT_END(subj)
+		FOR_EACH_SUBJECT_START(role, subj, x)
+			update_acl_obj_label(matchn->inode, matchn->device,
+					     ino, dev, subj);
+		FOR_EACH_SUBJECT_END(subj,x)
+	FOR_EACH_ROLE_END(role)
+
+	update_inodev_entry(matchn->inode, matchn->device, ino, dev);
+
+	return;
+}
+
+static void
+do_handle_create(const struct name_entry *matchn, const struct dentry *dentry,
+		 const struct vfsmount *mnt)
+{
+	u64 ino = __get_ino(dentry);
+	dev_t dev = __get_dev(dentry);
+
+	__do_handle_create(matchn, ino, dev);	
+
+	return;
+}
+
+void
+gr_handle_create(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	struct name_entry *matchn;
+
+	if (unlikely(!(gr_status & GR_READY)))
+		return;
+
+	preempt_disable();
+	matchn = lookup_name_entry(gr_to_filename_rbac(dentry, mnt));
+
+	if (unlikely((unsigned long)matchn)) {
+		write_lock(&gr_inode_lock);
+		do_handle_create(matchn, dentry, mnt);
+		write_unlock(&gr_inode_lock);
+	}
+	preempt_enable();
+
+	return;
+}
+
+void
+gr_handle_proc_create(const struct dentry *dentry, const struct inode *inode)
+{
+	struct name_entry *matchn;
+
+	if (unlikely(!(gr_status & GR_READY)))
+		return;
+
+	preempt_disable();
+	matchn = lookup_name_entry(gr_to_proc_filename_rbac(dentry, init_pid_ns.proc_mnt));
+
+	if (unlikely((unsigned long)matchn)) {
+		write_lock(&gr_inode_lock);
+		__do_handle_create(matchn, inode->i_ino, inode->i_sb->s_dev);
+		write_unlock(&gr_inode_lock);
+	}
+	preempt_enable();
+
+	return;
+}
+
+void
+gr_handle_rename(struct inode *old_dir, struct inode *new_dir,
+		 struct dentry *old_dentry,
+		 struct dentry *new_dentry,
+		 struct vfsmount *mnt, const __u8 replace, unsigned int flags)
+{
+	struct name_entry *matchn;
+	struct name_entry *matchn2 = NULL;
+	struct inodev_entry *inodev;
+	struct inode *inode = d_backing_inode(new_dentry);
+	struct inode *old_inode = d_backing_inode(old_dentry);
+	u64 old_ino = __get_ino(old_dentry);
+	dev_t old_dev = __get_dev(old_dentry);
+	unsigned int exchange = flags & RENAME_EXCHANGE;
+
+	/* vfs_rename swaps the name and parent link for old_dentry and
+	   new_dentry
+	   at this point, old_dentry has the new name, parent link, and inode
+	   for the renamed file
+	   if a file is being replaced by a rename, new_dentry has the inode
+	   and name for the replaced file
+	*/
+
+	if (unlikely(!(gr_status & GR_READY)))
+		return;
+
+	preempt_disable();
+	matchn = lookup_name_entry(gr_to_filename_rbac(old_dentry, mnt));
+
+	/* exchange cases:
+	   a filename exists for the source, but not dest
+		do a recreate on source
+	   a filename exists for the dest, but not source
+		do a recreate on dest
+	   a filename exists for both source and dest
+		delete source and dest, then create source and dest
+	   a filename exists for neither source nor dest
+		no updates needed
+
+	   the name entry lookups get us the old inode/dev associated with
+	   each name, so do the deletes first (if possible) so that when
+	   we do the create, we pick up on the right entries
+	*/
+
+	if (exchange)
+		matchn2 = lookup_name_entry(gr_to_filename_rbac(new_dentry, mnt));
+
+	/* we wouldn't have to check d_inode if it weren't for
+	   NFS silly-renaming
+	 */
+
+	write_lock(&gr_inode_lock);
+	if (unlikely((replace || exchange) && inode)) {
+		u64 new_ino = __get_ino(new_dentry);
+		dev_t new_dev = __get_dev(new_dentry);
+
+		inodev = lookup_inodev_entry(new_ino, new_dev);
+		if (inodev != NULL && ((inode->i_nlink <= 1) || d_is_dir(new_dentry)))
+			do_handle_delete(inodev, new_ino, new_dev);
+	}
+
+	inodev = lookup_inodev_entry(old_ino, old_dev);
+	if (inodev != NULL && ((old_inode->i_nlink <= 1) || d_is_dir(old_dentry)))
+		do_handle_delete(inodev, old_ino, old_dev);
+
+	if (unlikely(matchn != NULL))
+		do_handle_create(matchn, old_dentry, mnt);
+
+	if (unlikely(matchn2 != NULL))
+		do_handle_create(matchn2, new_dentry, mnt);
+
+	write_unlock(&gr_inode_lock);
+	preempt_enable();
+
+	return;
+}
+
+#if defined(CONFIG_GRKERNSEC_RESLOG) || !defined(CONFIG_GRKERNSEC_NO_RBAC)
+static const unsigned long res_learn_bumps[GR_NLIMITS] = {
+	[RLIMIT_CPU] = GR_RLIM_CPU_BUMP,
+	[RLIMIT_FSIZE] = GR_RLIM_FSIZE_BUMP,
+	[RLIMIT_DATA] = GR_RLIM_DATA_BUMP,
+	[RLIMIT_STACK] = GR_RLIM_STACK_BUMP,
+	[RLIMIT_CORE] = GR_RLIM_CORE_BUMP,
+	[RLIMIT_RSS] = GR_RLIM_RSS_BUMP,
+	[RLIMIT_NPROC] = GR_RLIM_NPROC_BUMP,
+	[RLIMIT_NOFILE] = GR_RLIM_NOFILE_BUMP,
+	[RLIMIT_MEMLOCK] = GR_RLIM_MEMLOCK_BUMP,
+	[RLIMIT_AS] = GR_RLIM_AS_BUMP,
+	[RLIMIT_LOCKS] = GR_RLIM_LOCKS_BUMP,
+	[RLIMIT_SIGPENDING] = GR_RLIM_SIGPENDING_BUMP,
+	[RLIMIT_MSGQUEUE] = GR_RLIM_MSGQUEUE_BUMP,
+	[RLIMIT_NICE] = GR_RLIM_NICE_BUMP,
+	[RLIMIT_RTPRIO] = GR_RLIM_RTPRIO_BUMP,
+	[RLIMIT_RTTIME] = GR_RLIM_RTTIME_BUMP
+};
+
+void
+gr_learn_resource(const struct task_struct *task,
+		  const int res, const unsigned long wanted, const int gt)
+{
+	struct acl_subject_label *acl;
+	const struct cred *cred;
+
+	if (unlikely((gr_status & GR_READY) &&
+		     task->acl && (task->acl->mode & (GR_LEARN | GR_INHERITLEARN))))
+		goto skip_reslog;
+
+	gr_log_resource(task, res, wanted, gt);
+skip_reslog:
+
+	if (unlikely(!(gr_status & GR_READY) || !wanted || res >= GR_NLIMITS))
+		return;
+
+	acl = task->acl;
+
+	if (likely(!acl || !(acl->mode & (GR_LEARN | GR_INHERITLEARN)) ||
+		   !(acl->resmask & (1U << (unsigned short) res))))
+		return;
+
+	if (wanted >= acl->res[res].rlim_cur) {
+		unsigned long res_add;
+
+		res_add = wanted + res_learn_bumps[res];
+
+		acl->res[res].rlim_cur = res_add;
+
+		if (wanted > acl->res[res].rlim_max)
+			acl->res[res].rlim_max = res_add;
+
+		/* only log the subject filename, since resource logging is supported for
+		   single-subject learning only */
+		rcu_read_lock();
+		cred = __task_cred(task);
+		security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename,
+			       task->role->roletype, GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid), acl->filename,
+			       acl->filename, acl->res[res].rlim_cur, acl->res[res].rlim_max,
+			       "", (unsigned long) res, &task->signal->saved_ip);
+		rcu_read_unlock();
+	}
+
+	return;
+}
+EXPORT_SYMBOL_GPL(gr_learn_resource);
+#endif
+
+#if defined(CONFIG_PAX_HAVE_ACL_FLAGS) && (defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR))
+void
+pax_set_initial_flags(struct linux_binprm *bprm)
+{
+	struct task_struct *task = current;
+        struct acl_subject_label *proc;
+	unsigned long flags;
+
+        if (unlikely(!(gr_status & GR_READY)))
+                return;
+
+	flags = pax_get_flags(task);
+
+        proc = task->acl;
+
+	if (proc->pax_flags & GR_PAX_DISABLE_PAGEEXEC)
+		flags &= ~MF_PAX_PAGEEXEC;
+	if (proc->pax_flags & GR_PAX_DISABLE_SEGMEXEC)
+		flags &= ~MF_PAX_SEGMEXEC;
+	if (proc->pax_flags & GR_PAX_DISABLE_RANDMMAP)
+		flags &= ~MF_PAX_RANDMMAP;
+	if (proc->pax_flags & GR_PAX_DISABLE_EMUTRAMP)
+		flags &= ~MF_PAX_EMUTRAMP;
+	if (proc->pax_flags & GR_PAX_DISABLE_MPROTECT)
+		flags &= ~MF_PAX_MPROTECT;
+
+	if (proc->pax_flags & GR_PAX_ENABLE_PAGEEXEC)
+		flags |= MF_PAX_PAGEEXEC;
+	if (proc->pax_flags & GR_PAX_ENABLE_SEGMEXEC)
+		flags |= MF_PAX_SEGMEXEC;
+	if (proc->pax_flags & GR_PAX_ENABLE_RANDMMAP)
+		flags |= MF_PAX_RANDMMAP;
+	if (proc->pax_flags & GR_PAX_ENABLE_EMUTRAMP)
+		flags |= MF_PAX_EMUTRAMP;
+	if (proc->pax_flags & GR_PAX_ENABLE_MPROTECT)
+		flags |= MF_PAX_MPROTECT;
+
+	pax_set_flags(task, flags);
+
+        return;
+}
+#endif
+
+int
+gr_handle_proc_ptrace(struct task_struct *task)
+{
+	struct file *filp;
+	struct task_struct *tmp = task;
+	struct task_struct *curtemp = current;
+	__u32 retmode;
+
+#ifndef CONFIG_GRKERNSEC_HARDEN_PTRACE
+	if (unlikely(!(gr_status & GR_READY)))
+		return 0;
+#endif
+
+	read_lock(&tasklist_lock);
+	read_lock(&grsec_exec_file_lock);
+	filp = task->exec_file;
+
+	while (task_pid_nr(tmp) > 0) {
+		if (tmp == curtemp)
+			break;
+		tmp = tmp->real_parent;
+	}
+
+	if (!filp || (task_pid_nr(tmp) == 0 && ((grsec_enable_harden_ptrace && gr_is_global_nonroot(current_uid()) && !(gr_status & GR_READY)) ||
+				((gr_status & GR_READY)	&& !(current->acl->mode & GR_RELAXPTRACE))))) {
+		read_unlock(&grsec_exec_file_lock);
+		read_unlock(&tasklist_lock);
+		return 1;
+	}
+
+#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE
+	if (!(gr_status & GR_READY)) {
+		read_unlock(&grsec_exec_file_lock);
+		read_unlock(&tasklist_lock);
+		return 0;
+	}
+#endif
+
+	retmode = gr_search_file(filp->f_path.dentry, GR_NOPTRACE, filp->f_path.mnt);
+	read_unlock(&grsec_exec_file_lock);
+	read_unlock(&tasklist_lock);
+
+	if (retmode & GR_NOPTRACE)
+		return 1;
+
+	if (!(current->acl->mode & GR_POVERRIDE) && !(current->role->roletype & GR_ROLE_GOD)
+	    && (current->acl != task->acl || (current->acl != current->role->root_label
+	    && task_pid_nr(current) != task_pid_nr(task))))
+		return 1;
+
+	return 0;
+}
+
+void task_grsec_rbac(struct seq_file *m, struct task_struct *p)
+{
+	if (unlikely(!(gr_status & GR_READY)))
+		return;
+
+	if (!(current->role->roletype & GR_ROLE_GOD))
+		return;
+
+	seq_printf(m, "RBAC:\t%.64s:%c:%.950s\n",
+			p->role->rolename, gr_task_roletype_to_char(p),
+			p->acl->filename);
+}
+
+int
+gr_handle_ptrace(struct task_struct *task, const long request)
+{
+	struct task_struct *tmp = task;
+	struct task_struct *curtemp = current;
+	__u32 retmode;
+
+#ifndef CONFIG_GRKERNSEC_HARDEN_PTRACE
+	if (unlikely(!(gr_status & GR_READY)))
+		return 0;
+#endif
+	if (request == PTRACE_ATTACH || request == PTRACE_SEIZE) {
+		read_lock(&tasklist_lock);
+		while (task_pid_nr(tmp) > 0) {
+			if (tmp == curtemp)
+				break;
+			tmp = tmp->real_parent;
+		}
+
+		if (task_pid_nr(tmp) == 0 && ((grsec_enable_harden_ptrace && gr_is_global_nonroot(current_uid()) && !(gr_status & GR_READY)) ||
+					((gr_status & GR_READY)	&& !(current->acl->mode & GR_RELAXPTRACE)))) {
+			read_unlock(&tasklist_lock);
+			gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task);
+			return 1;
+		}
+		read_unlock(&tasklist_lock);
+	}
+
+#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE
+	if (!(gr_status & GR_READY))
+		return 0;
+#endif
+
+	read_lock(&grsec_exec_file_lock);
+	if (unlikely(!task->exec_file)) {
+		read_unlock(&grsec_exec_file_lock);
+		return 0;
+	}
+
+	retmode = gr_search_file(task->exec_file->f_path.dentry, GR_PTRACERD | GR_NOPTRACE, task->exec_file->f_path.mnt);
+	read_unlock(&grsec_exec_file_lock);
+
+	if (retmode & GR_NOPTRACE) {
+		gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task);
+		return 1;
+	}
+		
+	if (retmode & GR_PTRACERD) {
+		switch (request) {
+		case PTRACE_SEIZE:
+		case PTRACE_POKETEXT:
+		case PTRACE_POKEDATA:
+		case PTRACE_POKEUSR:
+#if !defined(CONFIG_PPC32) && !defined(CONFIG_PPC64) && !defined(CONFIG_PARISC) && !defined(CONFIG_ALPHA) && !defined(CONFIG_IA64)
+		case PTRACE_SETREGS:
+		case PTRACE_SETFPREGS:
+#endif
+#ifdef CONFIG_X86
+		case PTRACE_SETFPXREGS:
+#endif
+#ifdef CONFIG_ALTIVEC
+		case PTRACE_SETVRREGS:
+#endif
+			return 1;
+		default:
+			return 0;
+		}
+	} else if (!(current->acl->mode & GR_POVERRIDE) &&
+		   !(current->role->roletype & GR_ROLE_GOD) &&
+		   (current->acl != task->acl)) {
+		gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task);
+		return 1;
+	}
+
+	return 0;
+}
+
+static int is_writable_mmap(const struct file *filp)
+{
+	struct task_struct *task = current;
+	struct acl_object_label *obj, *obj2;
+	struct dentry *dentry = filp->f_path.dentry;
+	struct vfsmount *mnt = filp->f_path.mnt;
+	struct inode *inode = d_backing_inode(dentry);
+
+	if (gr_status & GR_READY && !(task->acl->mode & GR_OVERRIDE) &&
+	    !task->is_writable && d_is_reg(dentry) && (mnt != shm_mnt || (inode->i_nlink > 0))) {
+		obj = chk_obj_label(dentry, mnt, running_polstate.default_role->root_label);
+		obj2 = chk_obj_label(dentry, mnt, task->role->root_label);
+		if (unlikely((obj->mode & GR_WRITE) || (obj2->mode & GR_WRITE))) {
+			gr_log_fs_generic(GR_DONT_AUDIT, GR_WRITLIB_ACL_MSG, dentry, mnt);
+			return 1;
+		}
+	}
+	return 0;
+}
+
+int
+gr_acl_handle_mmap(const struct file *file, const unsigned long prot)
+{
+	__u32 mode;
+
+	if (unlikely(!file || !(prot & PROT_EXEC)))
+		return 1;
+
+	if (is_writable_mmap(file))
+		return 0;
+
+	mode =
+	    gr_search_file(file->f_path.dentry,
+			   GR_EXEC | GR_AUDIT_EXEC | GR_SUPPRESS,
+			   file->f_path.mnt);
+
+	if (!gr_tpe_allow(file))
+		return 0;
+
+	if (unlikely(!(mode & GR_EXEC) && !(mode & GR_SUPPRESS))) {
+		gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_MMAP_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
+		return 0;
+	} else if (unlikely(!(mode & GR_EXEC))) {
+		return 0;
+	} else if (unlikely(mode & GR_EXEC && mode & GR_AUDIT_EXEC)) {
+		gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_MMAP_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
+		return 1;
+	}
+
+	return 1;
+}
+
+int
+gr_acl_handle_mprotect(const struct file *file, const unsigned long prot)
+{
+	__u32 mode;
+
+	if (unlikely(!file || !(prot & PROT_EXEC)))
+		return 1;
+
+	if (is_writable_mmap(file))
+		return 0;
+
+	mode =
+	    gr_search_file(file->f_path.dentry,
+			   GR_EXEC | GR_AUDIT_EXEC | GR_SUPPRESS,
+			   file->f_path.mnt);
+
+	if (!gr_tpe_allow(file))
+		return 0;
+
+	if (unlikely(!(mode & GR_EXEC) && !(mode & GR_SUPPRESS))) {
+		gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_MPROTECT_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
+		return 0;
+	} else if (unlikely(!(mode & GR_EXEC))) {
+		return 0;
+	} else if (unlikely(mode & GR_EXEC && mode & GR_AUDIT_EXEC)) {
+		gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_MPROTECT_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
+		return 1;
+	}
+
+	return 1;
+}
+
+void
+gr_acl_handle_psacct(struct task_struct *task, const long code)
+{
+	unsigned long runtime, cputime;
+	cputime_t utime, stime;
+	unsigned int wday, cday;
+	__u8 whr, chr;
+	__u8 wmin, cmin;
+	__u8 wsec, csec;
+	struct timespec curtime, starttime;
+
+	if (unlikely(!(gr_status & GR_READY) || !task->acl ||
+		     !(task->acl->mode & GR_PROCACCT)))
+		return;
+	
+	curtime = ns_to_timespec(ktime_get_ns());
+	starttime = ns_to_timespec(task->start_time);
+	runtime = curtime.tv_sec - starttime.tv_sec;
+	wday = runtime / (60 * 60 * 24);
+	runtime -= wday * (60 * 60 * 24);
+	whr = runtime / (60 * 60);
+	runtime -= whr * (60 * 60);
+	wmin = runtime / 60;
+	runtime -= wmin * 60;
+	wsec = runtime;
+
+	task_cputime(task, &utime, &stime);
+	cputime = cputime_to_secs(utime + stime);
+	cday = cputime / (60 * 60 * 24);
+	cputime -= cday * (60 * 60 * 24);
+	chr = cputime / (60 * 60);
+	cputime -= chr * (60 * 60);
+	cmin = cputime / 60;
+	cputime -= cmin * 60;
+	csec = cputime;
+
+	gr_log_procacct(GR_DO_AUDIT, GR_ACL_PROCACCT_MSG, task, wday, whr, wmin, wsec, cday, chr, cmin, csec, code);
+
+	return;
+}
+
+#ifdef CONFIG_TASKSTATS
+int gr_is_taskstats_denied(int pid)
+{
+	struct task_struct *task;
+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+	const struct cred *cred;
+#endif
+	int ret = 0;
+
+	/* restrict taskstats viewing to un-chrooted root users
+	   who have the 'view' subject flag if the RBAC system is enabled
+	*/
+
+	rcu_read_lock();
+	read_lock(&tasklist_lock);
+	task = find_task_by_vpid(pid);
+	if (task) {
+#ifdef CONFIG_GRKERNSEC_CHROOT
+		if (proc_is_chrooted(task))
+			ret = -EACCES;
+#endif
+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+		cred = __task_cred(task);
+#ifdef CONFIG_GRKERNSEC_PROC_USER
+		if (gr_is_global_nonroot(cred->uid))
+			ret = -EACCES;
+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+		if (gr_is_global_nonroot(cred->uid) && !groups_search(cred->group_info, grsec_proc_gid))
+			ret = -EACCES;
+#endif
+#endif
+		if (gr_status & GR_READY) {
+			if (!(task->acl->mode & GR_VIEW))
+				ret = -EACCES;
+		}
+	} else
+		ret = -ENOENT;
+
+	read_unlock(&tasklist_lock);
+	rcu_read_unlock();
+
+	return ret;
+}
+#endif
+
+/* AUXV entries are filled via a descendant of search_binary_handler
+   after we've already applied the subject for the target
+*/
+int gr_acl_enable_at_secure(void)
+{
+	if (unlikely(!(gr_status & GR_READY)))
+		return 0;
+
+	if (current->acl->mode & GR_ATSECURE)
+		return 1;
+
+	return 0;
+}
+	
+int gr_acl_handle_filldir(const struct file *file, const char *name, const unsigned int namelen, const u64 ino)
+{
+	struct task_struct *task = current;
+	struct dentry *dentry = file->f_path.dentry;
+	struct vfsmount *mnt = file->f_path.mnt;
+	struct acl_object_label *obj, *tmp;
+	struct acl_subject_label *subj;
+	unsigned int bufsize;
+	int is_not_root;
+	char *path;
+	dev_t dev = __get_dev(dentry);
+
+	if (unlikely(!(gr_status & GR_READY)))
+		return 1;
+
+	if (task->acl->mode & (GR_LEARN | GR_INHERITLEARN))
+		return 1;
+
+	/* ignore Eric Biederman */
+	if (IS_PRIVATE(d_backing_inode(dentry)))
+		return 1;
+
+	subj = task->acl;
+	read_lock(&gr_inode_lock);
+	do {
+		obj = lookup_acl_obj_label(ino, dev, subj);
+		if (obj != NULL) {
+			read_unlock(&gr_inode_lock);
+			return (obj->mode & GR_FIND) ? 1 : 0;
+		}
+	} while ((subj = subj->parent_subject));
+	read_unlock(&gr_inode_lock);
+	
+	/* this is purely an optimization since we're looking for an object
+	   for the directory we're doing a readdir on
+	   if it's possible for any globbed object to match the entry we're
+	   filling into the directory, then the object we find here will be
+	   an anchor point with attached globbed objects
+	*/
+	obj = chk_obj_label_noglob(dentry, mnt, task->acl);
+	if (obj->globbed == NULL)
+		return (obj->mode & GR_FIND) ? 1 : 0;
+
+	is_not_root = ((obj->filename[0] == '/') &&
+		   (obj->filename[1] == '\0')) ? 0 : 1;
+	bufsize = PAGE_SIZE - namelen - is_not_root;
+
+	/* check bufsize > PAGE_SIZE || bufsize == 0 */
+	if (unlikely((bufsize - 1) > (PAGE_SIZE - 1)))
+		return 1;
+
+	preempt_disable();
+	path = d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0], smp_processor_id()),
+			   bufsize);
+
+	bufsize = strlen(path);
+
+	/* if base is "/", don't append an additional slash */
+	if (is_not_root)
+		*(path + bufsize) = '/';
+	memcpy(path + bufsize + is_not_root, name, namelen);
+	*(path + bufsize + namelen + is_not_root) = '\0';
+
+	tmp = obj->globbed;
+	while (tmp) {
+		if (!glob_match(tmp->filename, path)) {
+			preempt_enable();
+			return (tmp->mode & GR_FIND) ? 1 : 0;
+		}
+		tmp = tmp->next;
+	}
+	preempt_enable();
+	return (obj->mode & GR_FIND) ? 1 : 0;
+}
+
+void gr_put_exec_file(struct task_struct *task)
+{
+	struct file *filp;  
+
+	write_lock(&grsec_exec_file_lock);
+	filp = task->exec_file;   
+	task->exec_file = NULL;
+	write_unlock(&grsec_exec_file_lock);
+
+	if (filp)
+		fput(filp);
+
+	return;
+}
+
+
+#ifdef CONFIG_NETFILTER_XT_MATCH_GRADM_MODULE
+EXPORT_SYMBOL_GPL(gr_acl_is_enabled);
+#endif
+#ifdef CONFIG_SECURITY
+EXPORT_SYMBOL_GPL(gr_check_user_change);
+EXPORT_SYMBOL_GPL(gr_check_group_change);
+#endif
+
diff --git a/grsecurity/gracl_alloc.c b/grsecurity/gracl_alloc.c
new file mode 100644
index 0000000..9adc75c
--- /dev/null
+++ b/grsecurity/gracl_alloc.c
@@ -0,0 +1,105 @@
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/gracl.h>
+#include <linux/grsecurity.h>
+
+static struct gr_alloc_state __current_alloc_state = { 1, 1, NULL };
+struct gr_alloc_state *current_alloc_state = &__current_alloc_state;
+
+static int
+alloc_pop(void)
+{
+	if (current_alloc_state->alloc_stack_next == 1)
+		return 0;
+
+	kfree(current_alloc_state->alloc_stack[current_alloc_state->alloc_stack_next - 2]);
+
+	current_alloc_state->alloc_stack_next--;
+
+	return 1;
+}
+
+static int
+alloc_push(void *buf)
+{
+	if (current_alloc_state->alloc_stack_next >= current_alloc_state->alloc_stack_size)
+		return 1;
+
+	current_alloc_state->alloc_stack[current_alloc_state->alloc_stack_next - 1] = buf;
+
+	current_alloc_state->alloc_stack_next++;
+
+	return 0;
+}
+
+void *
+acl_alloc(unsigned long len)
+{
+	void *ret = NULL;
+
+	if (!len || len > PAGE_SIZE)
+		goto out;
+
+	ret = kmalloc(len, GFP_KERNEL);
+
+	if (ret) {
+		if (alloc_push(ret)) {
+			kfree(ret);
+			ret = NULL;
+		}
+	}
+
+out:
+	return ret;
+}
+
+void *
+acl_alloc_num(unsigned long num, unsigned long len)
+{
+	if (!len || (num > (PAGE_SIZE / len)))
+		return NULL;
+
+	return acl_alloc(num * len);
+}
+
+void
+acl_free_all(void)
+{
+	if (!current_alloc_state->alloc_stack)
+		return;
+
+	while (alloc_pop()) ;
+
+	if (current_alloc_state->alloc_stack) {
+		if ((current_alloc_state->alloc_stack_size * sizeof (void *)) <= PAGE_SIZE)
+			kfree(current_alloc_state->alloc_stack);
+		else
+			vfree(current_alloc_state->alloc_stack);
+	}
+
+	current_alloc_state->alloc_stack = NULL;
+	current_alloc_state->alloc_stack_size = 1;
+	current_alloc_state->alloc_stack_next = 1;
+
+	return;
+}
+
+int
+acl_alloc_stack_init(unsigned long size)
+{
+	if ((size * sizeof (void *)) <= PAGE_SIZE)
+		current_alloc_state->alloc_stack =
+		    (void **) kmalloc(size * sizeof (void *), GFP_KERNEL);
+	else
+		current_alloc_state->alloc_stack = (void **) vmalloc(size * sizeof (void *));
+
+	current_alloc_state->alloc_stack_size = size;
+	current_alloc_state->alloc_stack_next = 1;
+
+	if (!current_alloc_state->alloc_stack)
+		return 0;
+	else
+		return 1;
+}
diff --git a/grsecurity/gracl_cap.c b/grsecurity/gracl_cap.c
new file mode 100644
index 0000000..8747091
--- /dev/null
+++ b/grsecurity/gracl_cap.c
@@ -0,0 +1,96 @@
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/gracl.h>
+#include <linux/grsecurity.h>
+#include <linux/grinternal.h>
+
+extern const char *captab_log[];
+extern int captab_log_entries;
+
+int gr_learn_cap(const struct task_struct *task, const struct cred *cred, const int cap, bool log)
+{
+	struct acl_subject_label *curracl;
+
+	if (!gr_acl_is_enabled())
+		return 1;
+
+	curracl = task->acl;
+
+	if (curracl->mode & (GR_LEARN | GR_INHERITLEARN)) {
+		if (log)
+			security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename,
+			       task->role->roletype, GR_GLOBAL_UID(cred->uid),
+			       GR_GLOBAL_GID(cred->gid), task->exec_file ?
+			       gr_to_filename(task->exec_file->f_path.dentry,
+			       task->exec_file->f_path.mnt) : curracl->filename,
+			       curracl->filename, 0UL,
+			       0UL, "", (unsigned long) cap, &task->signal->saved_ip);
+		return 1;
+	}
+
+	return 0;
+}
+
+int gr_task_acl_is_capable(const struct task_struct *task, const struct cred *cred, const int cap, bool log)
+{
+	struct acl_subject_label *curracl;
+	kernel_cap_t cap_drop = __cap_empty_set, cap_mask = __cap_empty_set;
+	kernel_cap_t cap_audit = __cap_empty_set;
+
+	if (!gr_acl_is_enabled())
+		return 1;
+
+	curracl = task->acl;
+
+	cap_drop = curracl->cap_lower;
+	cap_mask = curracl->cap_mask;
+	cap_audit = curracl->cap_invert_audit;
+
+	while ((curracl = curracl->parent_subject)) {
+		/* if the cap isn't specified in the current computed mask but is specified in the
+		   current level subject, and is lowered in the current level subject, then add
+		   it to the set of dropped capabilities
+		   otherwise, add the current level subject's mask to the current computed mask
+		 */
+		if (!cap_raised(cap_mask, cap) && cap_raised(curracl->cap_mask, cap)) {
+			cap_raise(cap_mask, cap);
+			if (cap_raised(curracl->cap_lower, cap))
+				cap_raise(cap_drop, cap);
+			if (cap_raised(curracl->cap_invert_audit, cap))
+				cap_raise(cap_audit, cap);
+		}
+	}
+
+	if (!cap_raised(cap_drop, cap)) {
+		if (log && cap_raised(cap_audit, cap))
+			gr_log_cap(GR_DO_AUDIT, GR_CAP_ACL_MSG2, task, captab_log[cap]);
+		return 1;
+	}
+
+	/* only learn the capability use if the process has the capability in the
+	   general case, the two uses in sys.c of gr_learn_cap are an exception
+	   to this rule to ensure any role transition involves what the full-learned
+	   policy believes in a privileged process
+	*/
+	if (cap_raised(cred->cap_effective, cap) && gr_learn_cap(task, cred, cap, log))
+		return 1;
+
+	if (log && (cap >= 0) && (cap < captab_log_entries) && cap_raised(cred->cap_effective, cap) && !cap_raised(cap_audit, cap))
+		gr_log_cap(GR_DONT_AUDIT, GR_CAP_ACL_MSG, task, captab_log[cap]);
+
+	return 0;
+}
+
+int
+gr_acl_is_capable(const int cap)
+{
+	return gr_task_acl_is_capable(current, current_cred(), cap, true);
+}
+
+int
+gr_acl_is_capable_nolog(const int cap)
+{
+	return gr_task_acl_is_capable(current, current_cred(), cap, false);
+}
+
diff --git a/grsecurity/gracl_compat.c b/grsecurity/gracl_compat.c
new file mode 100644
index 0000000..a43dd06
--- /dev/null
+++ b/grsecurity/gracl_compat.c
@@ -0,0 +1,269 @@
+#include <linux/kernel.h>
+#include <linux/gracl.h>
+#include <linux/compat.h>
+#include <linux/gracl_compat.h>
+
+#include <asm/uaccess.h>
+
+int copy_gr_arg_wrapper_compat(const char *buf, struct gr_arg_wrapper *uwrap)
+{
+	struct gr_arg_wrapper_compat uwrapcompat;
+
+        if (copy_from_user(&uwrapcompat, buf, sizeof(uwrapcompat)))
+                return -EFAULT;
+
+        if ((uwrapcompat.version != GRSECURITY_VERSION) ||
+	    (uwrapcompat.size != sizeof(struct gr_arg_compat)))  
+                return -EINVAL;
+
+	uwrap->arg = compat_ptr(uwrapcompat.arg);
+	uwrap->version = uwrapcompat.version;
+	uwrap->size = sizeof(struct gr_arg);
+
+        return 0;
+}
+
+int copy_gr_arg_compat(const struct gr_arg __user *buf, struct gr_arg *arg)
+{
+	struct gr_arg_compat argcompat;
+
+        if (copy_from_user(&argcompat, buf, sizeof(argcompat)))
+                return -EFAULT;
+
+	arg->role_db.r_table = compat_ptr(argcompat.role_db.r_table);
+	arg->role_db.num_pointers = argcompat.role_db.num_pointers;
+	arg->role_db.num_roles = argcompat.role_db.num_roles;
+	arg->role_db.num_domain_children = argcompat.role_db.num_domain_children;
+	arg->role_db.num_subjects = argcompat.role_db.num_subjects;
+	arg->role_db.num_objects = argcompat.role_db.num_objects;
+
+	memcpy(&arg->pw, &argcompat.pw, sizeof(arg->pw));
+	memcpy(&arg->salt, &argcompat.salt, sizeof(arg->salt));
+	memcpy(&arg->sum, &argcompat.sum, sizeof(arg->sum));
+	memcpy(&arg->sp_role, &argcompat.sp_role, sizeof(arg->sp_role));
+	arg->sprole_pws = compat_ptr(argcompat.sprole_pws);
+	arg->segv_device = argcompat.segv_device;
+	arg->segv_inode = argcompat.segv_inode;
+	arg->segv_uid = argcompat.segv_uid;
+	arg->num_sprole_pws = argcompat.num_sprole_pws;
+	arg->mode = argcompat.mode;
+
+	return 0;
+}
+
+int copy_acl_object_label_compat(struct acl_object_label *obj, const struct acl_object_label *userp)
+{
+	struct acl_object_label_compat objcompat;
+
+	if (copy_from_user(&objcompat, userp, sizeof(objcompat)))
+                return -EFAULT;
+
+	obj->filename = compat_ptr(objcompat.filename);
+	obj->inode = objcompat.inode;
+	obj->device = objcompat.device;
+	obj->mode = objcompat.mode;
+
+	obj->nested = compat_ptr(objcompat.nested);
+	obj->globbed = compat_ptr(objcompat.globbed);
+
+	obj->prev = compat_ptr(objcompat.prev);
+	obj->next = compat_ptr(objcompat.next);
+
+	return 0;
+}
+
+int copy_acl_subject_label_compat(struct acl_subject_label *subj, const struct acl_subject_label *userp)
+{
+	unsigned int i;
+	struct acl_subject_label_compat subjcompat;
+
+	if (copy_from_user(&subjcompat, userp, sizeof(subjcompat)))
+                return -EFAULT;
+
+	subj->filename = compat_ptr(subjcompat.filename);
+	subj->inode = subjcompat.inode;
+	subj->device = subjcompat.device;
+	subj->mode = subjcompat.mode;
+	subj->cap_mask = subjcompat.cap_mask;
+	subj->cap_lower = subjcompat.cap_lower;
+	subj->cap_invert_audit = subjcompat.cap_invert_audit;
+
+	for (i = 0; i < GR_NLIMITS; i++) {
+		if (subjcompat.res[i].rlim_cur == COMPAT_RLIM_INFINITY)
+			subj->res[i].rlim_cur = RLIM_INFINITY;
+		else
+			subj->res[i].rlim_cur = subjcompat.res[i].rlim_cur;
+		if (subjcompat.res[i].rlim_max == COMPAT_RLIM_INFINITY)
+			subj->res[i].rlim_max = RLIM_INFINITY;
+		else
+			subj->res[i].rlim_max = subjcompat.res[i].rlim_max;
+	}
+	subj->resmask = subjcompat.resmask;
+
+	subj->user_trans_type = subjcompat.user_trans_type;
+	subj->group_trans_type = subjcompat.group_trans_type;
+	subj->user_transitions = compat_ptr(subjcompat.user_transitions);
+	subj->group_transitions = compat_ptr(subjcompat.group_transitions);
+	subj->user_trans_num = subjcompat.user_trans_num;
+	subj->group_trans_num = subjcompat.group_trans_num;
+
+	memcpy(&subj->sock_families, &subjcompat.sock_families, sizeof(subj->sock_families));
+	memcpy(&subj->ip_proto, &subjcompat.ip_proto, sizeof(subj->ip_proto));
+	subj->ip_type = subjcompat.ip_type;
+	subj->ips = compat_ptr(subjcompat.ips);
+	subj->ip_num = subjcompat.ip_num;
+	subj->inaddr_any_override = subjcompat.inaddr_any_override;
+
+	subj->crashes = subjcompat.crashes;
+	subj->expires = subjcompat.expires;
+
+	subj->parent_subject = compat_ptr(subjcompat.parent_subject);
+	subj->hash = compat_ptr(subjcompat.hash);
+	subj->prev = compat_ptr(subjcompat.prev);
+	subj->next = compat_ptr(subjcompat.next);
+
+	subj->obj_hash = compat_ptr(subjcompat.obj_hash);
+	subj->obj_hash_size = subjcompat.obj_hash_size;
+	subj->pax_flags = subjcompat.pax_flags;
+
+	return 0;
+}
+
+int copy_acl_role_label_compat(struct acl_role_label *role, const struct acl_role_label *userp)
+{
+	struct acl_role_label_compat rolecompat;
+
+	if (copy_from_user(&rolecompat, userp, sizeof(rolecompat)))
+                return -EFAULT;
+
+	role->rolename = compat_ptr(rolecompat.rolename);
+	role->uidgid = rolecompat.uidgid;
+	role->roletype = rolecompat.roletype;
+
+	role->auth_attempts = rolecompat.auth_attempts;
+	role->expires = rolecompat.expires;
+
+	role->root_label = compat_ptr(rolecompat.root_label);
+	role->hash = compat_ptr(rolecompat.hash);
+
+	role->prev = compat_ptr(rolecompat.prev);
+	role->next = compat_ptr(rolecompat.next);
+
+	role->transitions = compat_ptr(rolecompat.transitions);
+	role->allowed_ips = compat_ptr(rolecompat.allowed_ips);
+	role->domain_children = compat_ptr(rolecompat.domain_children);
+	role->domain_child_num = rolecompat.domain_child_num;
+
+	role->umask = rolecompat.umask;
+
+	role->subj_hash = compat_ptr(rolecompat.subj_hash);
+	role->subj_hash_size = rolecompat.subj_hash_size;
+
+	return 0;
+}
+
+int copy_role_allowed_ip_compat(struct role_allowed_ip *roleip, const struct role_allowed_ip *userp)
+{
+	struct role_allowed_ip_compat roleip_compat;
+
+	if (copy_from_user(&roleip_compat, userp, sizeof(roleip_compat)))
+                return -EFAULT;
+
+	roleip->addr = roleip_compat.addr;
+	roleip->netmask = roleip_compat.netmask;
+
+	roleip->prev = compat_ptr(roleip_compat.prev);
+	roleip->next = compat_ptr(roleip_compat.next);
+
+	return 0;
+}
+
+int copy_role_transition_compat(struct role_transition *trans, const struct role_transition *userp)
+{
+	struct role_transition_compat trans_compat;
+
+	if (copy_from_user(&trans_compat, userp, sizeof(trans_compat)))
+                return -EFAULT;
+
+	trans->rolename = compat_ptr(trans_compat.rolename);
+
+	trans->prev = compat_ptr(trans_compat.prev);
+	trans->next = compat_ptr(trans_compat.next);
+
+	return 0;
+
+}
+
+int copy_gr_hash_struct_compat(struct gr_hash_struct *hash, const struct gr_hash_struct *userp)
+{
+	struct gr_hash_struct_compat hash_compat;
+
+	if (copy_from_user(&hash_compat, userp, sizeof(hash_compat)))
+                return -EFAULT;
+
+	hash->table = compat_ptr(hash_compat.table);
+	hash->nametable = compat_ptr(hash_compat.nametable);
+	hash->first = compat_ptr(hash_compat.first);
+
+	hash->table_size = hash_compat.table_size;
+	hash->used_size = hash_compat.used_size;
+
+	hash->type = hash_compat.type;
+
+	return 0;
+}
+
+int copy_pointer_from_array_compat(void *ptr, unsigned long idx, const void *userp)
+{
+	compat_uptr_t ptrcompat;
+
+	if (copy_from_user(&ptrcompat, userp + (idx * sizeof(ptrcompat)), sizeof(ptrcompat)))
+                return -EFAULT;
+
+	*(void **)ptr = compat_ptr(ptrcompat);
+
+	return 0;
+}
+
+int copy_acl_ip_label_compat(struct acl_ip_label *ip, const struct acl_ip_label *userp)
+{
+	struct acl_ip_label_compat ip_compat;
+
+	if (copy_from_user(&ip_compat, userp, sizeof(ip_compat)))
+                return -EFAULT;
+
+	ip->iface = compat_ptr(ip_compat.iface);
+	ip->addr = ip_compat.addr;
+	ip->netmask = ip_compat.netmask;
+	ip->low = ip_compat.low;
+	ip->high = ip_compat.high;
+	ip->mode = ip_compat.mode;
+	ip->type = ip_compat.type;
+
+	memcpy(&ip->proto, &ip_compat.proto, sizeof(ip->proto));
+
+	ip->prev = compat_ptr(ip_compat.prev);
+	ip->next = compat_ptr(ip_compat.next);
+
+	return 0;
+}
+
+int copy_sprole_pw_compat(struct sprole_pw *pw, unsigned long idx, const struct sprole_pw *userp)
+{
+	struct sprole_pw_compat pw_compat;
+
+	if (copy_from_user(&pw_compat, (const void *)userp + (sizeof(pw_compat) * idx), sizeof(pw_compat)))
+                return -EFAULT;
+
+	pw->rolename = compat_ptr(pw_compat.rolename);
+	memcpy(&pw->salt, pw_compat.salt, sizeof(pw->salt));
+	memcpy(&pw->sum, pw_compat.sum, sizeof(pw->sum));
+
+	return 0;
+}
+
+size_t get_gr_arg_wrapper_size_compat(void)
+{
+	return sizeof(struct gr_arg_wrapper_compat);
+}
+
diff --git a/grsecurity/gracl_fs.c b/grsecurity/gracl_fs.c
new file mode 100644
index 0000000..fce7f71
--- /dev/null
+++ b/grsecurity/gracl_fs.c
@@ -0,0 +1,448 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/stat.h>
+#include <linux/grsecurity.h>
+#include <linux/grinternal.h>
+#include <linux/gracl.h>
+
+umode_t
+gr_acl_umask(void)
+{
+	if (unlikely(!gr_acl_is_enabled()))
+		return 0;
+
+	return current->role->umask;
+}
+
+__u32
+gr_acl_handle_hidden_file(const struct dentry * dentry,
+			  const struct vfsmount * mnt)
+{
+	__u32 mode;
+
+	if (unlikely(d_is_negative(dentry)))
+		return GR_FIND;
+
+	mode =
+	    gr_search_file(dentry, GR_FIND | GR_AUDIT_FIND | GR_SUPPRESS, mnt);
+
+	if (unlikely(mode & GR_FIND && mode & GR_AUDIT_FIND)) {
+		gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_HIDDEN_ACL_MSG, dentry, mnt);
+		return mode;
+	} else if (unlikely(!(mode & GR_FIND) && !(mode & GR_SUPPRESS))) {
+		gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_HIDDEN_ACL_MSG, dentry, mnt);
+		return 0;
+	} else if (unlikely(!(mode & GR_FIND)))
+		return 0;
+
+	return GR_FIND;
+}
+
+__u32
+gr_acl_handle_open(const struct dentry * dentry, const struct vfsmount * mnt,
+		   int acc_mode)
+{
+	__u32 reqmode = GR_FIND;
+	__u32 mode;
+
+	if (unlikely(d_is_negative(dentry)))
+		return reqmode;
+
+	if (acc_mode & MAY_APPEND)
+		reqmode |= GR_APPEND;
+	else if (acc_mode & MAY_WRITE)
+		reqmode |= GR_WRITE;
+	if ((acc_mode & MAY_READ) && !d_is_dir(dentry))
+		reqmode |= GR_READ;
+
+	mode =
+	    gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS,
+			   mnt);
+
+	if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) {
+		gr_log_fs_rbac_mode2(GR_DO_AUDIT, GR_OPEN_ACL_MSG, dentry, mnt,
+			       reqmode & GR_READ ? " reading" : "",
+			       reqmode & GR_WRITE ? " writing" : reqmode &
+			       GR_APPEND ? " appending" : "");
+		return reqmode;
+	} else
+	    if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS)))
+	{
+		gr_log_fs_rbac_mode2(GR_DONT_AUDIT, GR_OPEN_ACL_MSG, dentry, mnt,
+			       reqmode & GR_READ ? " reading" : "",
+			       reqmode & GR_WRITE ? " writing" : reqmode &
+			       GR_APPEND ? " appending" : "");
+		return 0;
+	} else if (unlikely((mode & reqmode) != reqmode))
+		return 0;
+
+	return reqmode;
+}
+
+__u32
+gr_acl_handle_creat(const struct dentry * dentry,
+		    const struct dentry * p_dentry,
+		    const struct vfsmount * p_mnt, int open_flags, int acc_mode,
+		    const int imode)
+{
+	__u32 reqmode = GR_WRITE | GR_CREATE;
+	__u32 mode;
+
+	if (acc_mode & MAY_APPEND)
+		reqmode |= GR_APPEND;
+	// if a directory was required or the directory already exists, then
+	// don't count this open as a read
+	if ((acc_mode & MAY_READ) &&
+	    !((open_flags & O_DIRECTORY) || d_is_dir(dentry)))
+		reqmode |= GR_READ;
+	if ((open_flags & O_CREAT) &&
+	    ((imode & S_ISUID) || ((imode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))))
+		reqmode |= GR_SETID;
+
+	mode =
+	    gr_check_create(dentry, p_dentry, p_mnt,
+			    reqmode | to_gr_audit(reqmode) | GR_SUPPRESS);
+
+	if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) {
+		gr_log_fs_rbac_mode2(GR_DO_AUDIT, GR_CREATE_ACL_MSG, dentry, p_mnt,
+			       reqmode & GR_READ ? " reading" : "",
+			       reqmode & GR_WRITE ? " writing" : reqmode &
+			       GR_APPEND ? " appending" : "");
+		return reqmode;
+	} else
+	    if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS)))
+	{
+		gr_log_fs_rbac_mode2(GR_DONT_AUDIT, GR_CREATE_ACL_MSG, dentry, p_mnt,
+			       reqmode & GR_READ ? " reading" : "",
+			       reqmode & GR_WRITE ? " writing" : reqmode &
+			       GR_APPEND ? " appending" : "");
+		return 0;
+	} else if (unlikely((mode & reqmode) != reqmode))
+		return 0;
+
+	return reqmode;
+}
+
+__u32
+gr_acl_handle_access(const struct dentry * dentry, const struct vfsmount * mnt,
+		     const int fmode)
+{
+	__u32 mode, reqmode = GR_FIND;
+
+	if ((fmode & S_IXOTH) && !d_is_dir(dentry))
+		reqmode |= GR_EXEC;
+	if (fmode & S_IWOTH)
+		reqmode |= GR_WRITE;
+	if (fmode & S_IROTH)
+		reqmode |= GR_READ;
+
+	mode =
+	    gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS,
+			   mnt);
+
+	if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) {
+		gr_log_fs_rbac_mode3(GR_DO_AUDIT, GR_ACCESS_ACL_MSG, dentry, mnt,
+			       reqmode & GR_READ ? " reading" : "",
+			       reqmode & GR_WRITE ? " writing" : "",
+			       reqmode & GR_EXEC ? " executing" : "");
+		return reqmode;
+	} else
+	    if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS)))
+	{
+		gr_log_fs_rbac_mode3(GR_DONT_AUDIT, GR_ACCESS_ACL_MSG, dentry, mnt,
+			       reqmode & GR_READ ? " reading" : "",
+			       reqmode & GR_WRITE ? " writing" : "",
+			       reqmode & GR_EXEC ? " executing" : "");
+		return 0;
+	} else if (unlikely((mode & reqmode) != reqmode))
+		return 0;
+
+	return reqmode;
+}
+
+static __u32 generic_fs_handler(const struct dentry *dentry, const struct vfsmount *mnt, __u32 reqmode, const char *fmt)
+{
+	__u32 mode;
+
+	mode = gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS, mnt);
+
+	if (unlikely(((mode & (reqmode)) == (reqmode)) && mode & GR_AUDITS)) {
+		gr_log_fs_rbac_generic(GR_DO_AUDIT, fmt, dentry, mnt);
+		return mode;
+	} else if (unlikely((mode & (reqmode)) != (reqmode) && !(mode & GR_SUPPRESS))) {
+		gr_log_fs_rbac_generic(GR_DONT_AUDIT, fmt, dentry, mnt);
+		return 0;
+	} else if (unlikely((mode & (reqmode)) != (reqmode)))
+		return 0;
+
+	return (reqmode);
+}
+
+__u32
+gr_acl_handle_rmdir(const struct dentry * dentry, const struct vfsmount * mnt)
+{
+	return generic_fs_handler(dentry, mnt, GR_WRITE | GR_DELETE , GR_RMDIR_ACL_MSG);
+}
+
+__u32
+gr_acl_handle_unlink(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	return generic_fs_handler(dentry, mnt, GR_WRITE | GR_DELETE , GR_UNLINK_ACL_MSG);
+}
+
+__u32
+gr_acl_handle_truncate(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	return generic_fs_handler(dentry, mnt, GR_WRITE, GR_TRUNCATE_ACL_MSG);
+}
+
+__u32
+gr_acl_handle_utime(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	return generic_fs_handler(dentry, mnt, GR_WRITE, GR_ATIME_ACL_MSG);
+}
+
+__u32
+gr_acl_handle_chmod(const struct dentry *dentry, const struct vfsmount *mnt,
+		     umode_t *modeptr)
+{
+	umode_t mode;
+	struct inode *inode = d_backing_inode(dentry);
+
+	*modeptr &= ~gr_acl_umask();
+	mode = *modeptr;
+
+	if (unlikely(inode && S_ISSOCK(inode->i_mode)))
+		return 1;
+
+	if (unlikely(!d_is_dir(dentry) &&
+		     ((mode & S_ISUID) || ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))))) {
+		return generic_fs_handler(dentry, mnt, GR_WRITE | GR_SETID,
+				   GR_CHMOD_ACL_MSG);
+	} else {
+		return generic_fs_handler(dentry, mnt, GR_WRITE, GR_CHMOD_ACL_MSG);
+	}
+}
+
+__u32
+gr_acl_handle_chown(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	return generic_fs_handler(dentry, mnt, GR_WRITE, GR_CHOWN_ACL_MSG);
+}
+
+__u32
+gr_acl_handle_setxattr(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	return generic_fs_handler(dentry, mnt, GR_WRITE, GR_SETXATTR_ACL_MSG);
+}
+
+__u32
+gr_acl_handle_removexattr(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	return generic_fs_handler(dentry, mnt, GR_WRITE, GR_REMOVEXATTR_ACL_MSG);
+}
+
+__u32
+gr_acl_handle_execve(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	return generic_fs_handler(dentry, mnt, GR_EXEC, GR_EXEC_ACL_MSG);
+}
+
+__u32
+gr_acl_handle_unix(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	return generic_fs_handler(dentry, mnt, GR_READ | GR_WRITE,
+			   GR_UNIXCONNECT_ACL_MSG);
+}
+
+/* hardlinks require at minimum create and link permission,
+   any additional privilege required is based on the
+   privilege of the file being linked to
+*/
+__u32
+gr_acl_handle_link(const struct dentry * new_dentry,
+		   const struct dentry * parent_dentry,
+		   const struct vfsmount * parent_mnt,
+		   const struct dentry * old_dentry,
+		   const struct vfsmount * old_mnt, const struct filename *to)
+{
+	__u32 mode;
+	__u32 needmode = GR_CREATE | GR_LINK;
+	__u32 needaudit = GR_AUDIT_CREATE | GR_AUDIT_LINK;
+
+	mode =
+	    gr_check_link(new_dentry, parent_dentry, parent_mnt, old_dentry,
+			  old_mnt);
+
+	if (unlikely(((mode & needmode) == needmode) && (mode & needaudit))) {
+		gr_log_fs_rbac_str(GR_DO_AUDIT, GR_LINK_ACL_MSG, old_dentry, old_mnt, to->name);
+		return mode;
+	} else if (unlikely(((mode & needmode) != needmode) && !(mode & GR_SUPPRESS))) {
+		gr_log_fs_rbac_str(GR_DONT_AUDIT, GR_LINK_ACL_MSG, old_dentry, old_mnt, to->name);
+		return 0;
+	} else if (unlikely((mode & needmode) != needmode))
+		return 0;
+
+	return 1;
+}
+
+__u32
+gr_acl_handle_symlink(const struct dentry * new_dentry,
+		      const struct dentry * parent_dentry,
+		      const struct vfsmount * parent_mnt, const struct filename *from)
+{
+	__u32 needmode = GR_WRITE | GR_CREATE;
+	__u32 mode;
+
+	mode =
+	    gr_check_create(new_dentry, parent_dentry, parent_mnt,
+			    GR_CREATE | GR_AUDIT_CREATE |
+			    GR_WRITE | GR_AUDIT_WRITE | GR_SUPPRESS);
+
+	if (unlikely(mode & GR_WRITE && mode & GR_AUDITS)) {
+		gr_log_fs_str_rbac(GR_DO_AUDIT, GR_SYMLINK_ACL_MSG, from->name, new_dentry, parent_mnt);
+		return mode;
+	} else if (unlikely(((mode & needmode) != needmode) && !(mode & GR_SUPPRESS))) {
+		gr_log_fs_str_rbac(GR_DONT_AUDIT, GR_SYMLINK_ACL_MSG, from->name, new_dentry, parent_mnt);
+		return 0;
+	} else if (unlikely((mode & needmode) != needmode))
+		return 0;
+
+	return (GR_WRITE | GR_CREATE);
+}
+
+static __u32 generic_fs_create_handler(const struct dentry *new_dentry, const struct dentry *parent_dentry, const struct vfsmount *parent_mnt, __u32 reqmode, const char *fmt)
+{
+	__u32 mode;
+
+	mode = gr_check_create(new_dentry, parent_dentry, parent_mnt, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS);
+
+	if (unlikely(((mode & (reqmode)) == (reqmode)) && mode & GR_AUDITS)) {
+		gr_log_fs_rbac_generic(GR_DO_AUDIT, fmt, new_dentry, parent_mnt);
+		return mode;
+	} else if (unlikely((mode & (reqmode)) != (reqmode) && !(mode & GR_SUPPRESS))) {
+		gr_log_fs_rbac_generic(GR_DONT_AUDIT, fmt, new_dentry, parent_mnt);
+		return 0;
+	} else if (unlikely((mode & (reqmode)) != (reqmode)))
+		return 0;
+
+	return (reqmode);
+}
+
+__u32
+gr_acl_handle_mknod(const struct dentry * new_dentry,
+		    const struct dentry * parent_dentry,
+		    const struct vfsmount * parent_mnt,
+		    const int mode)
+{
+	__u32 reqmode = GR_WRITE | GR_CREATE;
+	if (unlikely((mode & S_ISUID) || ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))))
+		reqmode |= GR_SETID;
+
+	return generic_fs_create_handler(new_dentry, parent_dentry, parent_mnt,
+				  reqmode, GR_MKNOD_ACL_MSG);
+}
+
+__u32
+gr_acl_handle_mkdir(const struct dentry *new_dentry,
+		    const struct dentry *parent_dentry,
+		    const struct vfsmount *parent_mnt)
+{
+	return generic_fs_create_handler(new_dentry, parent_dentry, parent_mnt,
+				  GR_WRITE | GR_CREATE, GR_MKDIR_ACL_MSG);
+}
+
+#define RENAME_CHECK_SUCCESS(old, new) \
+	(((old & (GR_WRITE | GR_READ)) == (GR_WRITE | GR_READ)) && \
+	 ((new & (GR_WRITE | GR_READ)) == (GR_WRITE | GR_READ)))
+
+int
+gr_acl_handle_rename(struct dentry *new_dentry,
+		     struct dentry *parent_dentry,
+		     const struct vfsmount *parent_mnt,
+		     struct dentry *old_dentry,
+		     struct inode *old_parent_inode,
+		     struct vfsmount *old_mnt, const struct filename *newname, unsigned int flags)
+{
+	__u32 comp1, comp2;
+	int error = 0;
+
+	if (unlikely(!gr_acl_is_enabled()))
+		return 0;
+
+	if (flags & RENAME_EXCHANGE) {
+		comp1 = gr_search_file(new_dentry, GR_READ | GR_WRITE |
+				       GR_AUDIT_READ | GR_AUDIT_WRITE |
+				       GR_SUPPRESS, parent_mnt);
+		comp2 =
+		    gr_search_file(old_dentry,
+				   GR_READ | GR_WRITE | GR_AUDIT_READ |
+				   GR_AUDIT_WRITE | GR_SUPPRESS, old_mnt);
+	} else if (d_is_negative(new_dentry)) {
+		comp1 = gr_check_create(new_dentry, parent_dentry, parent_mnt,
+					GR_READ | GR_WRITE | GR_CREATE | GR_AUDIT_READ |
+					GR_AUDIT_WRITE | GR_AUDIT_CREATE | GR_SUPPRESS);
+		comp2 = gr_search_file(old_dentry, GR_READ | GR_WRITE |
+				       GR_DELETE | GR_AUDIT_DELETE |
+				       GR_AUDIT_READ | GR_AUDIT_WRITE |
+				       GR_SUPPRESS, old_mnt);
+	} else {
+		comp1 = gr_search_file(new_dentry, GR_READ | GR_WRITE |
+				       GR_CREATE | GR_DELETE |
+				       GR_AUDIT_CREATE | GR_AUDIT_DELETE |
+				       GR_AUDIT_READ | GR_AUDIT_WRITE |
+				       GR_SUPPRESS, parent_mnt);
+		comp2 =
+		    gr_search_file(old_dentry,
+				   GR_READ | GR_WRITE | GR_AUDIT_READ |
+				   GR_DELETE | GR_AUDIT_DELETE |
+				   GR_AUDIT_WRITE | GR_SUPPRESS, old_mnt);
+	}
+
+	if (RENAME_CHECK_SUCCESS(comp1, comp2) &&
+	    ((comp1 & GR_AUDITS) || (comp2 & GR_AUDITS)))
+		gr_log_fs_rbac_str(GR_DO_AUDIT, GR_RENAME_ACL_MSG, old_dentry, old_mnt, newname->name);
+	else if (!RENAME_CHECK_SUCCESS(comp1, comp2) && !(comp1 & GR_SUPPRESS)
+		 && !(comp2 & GR_SUPPRESS)) {
+		gr_log_fs_rbac_str(GR_DONT_AUDIT, GR_RENAME_ACL_MSG, old_dentry, old_mnt, newname->name);
+		error = -EACCES;
+	} else if (unlikely(!RENAME_CHECK_SUCCESS(comp1, comp2)))
+		error = -EACCES;
+
+	return error;
+}
+
+void
+gr_acl_handle_exit(void)
+{
+	u16 id;
+	char *rolename;
+
+	if (unlikely(current->acl_sp_role && gr_acl_is_enabled() &&
+	    !(current->role->roletype & GR_ROLE_PERSIST))) {
+		id = current->acl_role_id;
+		rolename = current->role->rolename;
+		gr_set_acls(1);
+		gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_SPROLEL_ACL_MSG, rolename, id);
+	}
+
+	gr_put_exec_file(current);
+	return;
+}
+
+int
+gr_acl_handle_procpidmem(const struct task_struct *task)
+{
+	if (unlikely(!gr_acl_is_enabled()))
+		return 0;
+
+	if (task != current && (task->acl->mode & GR_PROTPROCFD) &&
+	    !(current->acl->mode & GR_POVERRIDE) &&
+	    !(current->role->roletype & GR_ROLE_GOD))
+		return -EACCES;
+
+	return 0;
+}
diff --git a/grsecurity/gracl_ip.c b/grsecurity/gracl_ip.c
new file mode 100644
index 0000000..950647c
--- /dev/null
+++ b/grsecurity/gracl_ip.c
@@ -0,0 +1,387 @@
+#include <linux/kernel.h>
+#include <asm/uaccess.h>
+#include <asm/errno.h>
+#include <net/sock.h>
+#include <linux/file.h>
+#include <linux/fs.h>
+#include <linux/net.h>
+#include <linux/in.h>
+#include <linux/skbuff.h>
+#include <linux/ip.h>
+#include <linux/udp.h>
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/netdevice.h>
+#include <linux/inetdevice.h>
+#include <linux/gracl.h>
+#include <linux/grsecurity.h>
+#include <linux/grinternal.h>
+
+#define GR_BIND			0x01
+#define GR_CONNECT		0x02
+#define GR_INVERT		0x04
+#define GR_BINDOVERRIDE		0x08
+#define GR_CONNECTOVERRIDE	0x10
+#define GR_SOCK_FAMILY		0x20
+
+static const char * gr_protocols[IPPROTO_MAX] = {
+	"ip", "icmp", "igmp", "ggp", "ipencap", "st", "tcp", "cbt",
+	"egp", "igp", "bbn-rcc", "nvp", "pup", "argus", "emcon", "xnet",
+	"chaos", "udp", "mux", "dcn", "hmp", "prm", "xns-idp", "trunk-1",
+	"trunk-2", "leaf-1", "leaf-2", "rdp", "irtp", "iso-tp4", "netblt", "mfe-nsp",
+	"merit-inp", "sep", "3pc", "idpr", "xtp", "ddp", "idpr-cmtp", "tp++",
+	"il", "ipv6", "sdrp", "ipv6-route", "ipv6-frag", "idrp", "rsvp", "gre",
+	"mhrp", "bna", "ipv6-crypt", "ipv6-auth", "i-nlsp", "swipe", "narp", "mobile",
+	"tlsp", "skip", "ipv6-icmp", "ipv6-nonxt", "ipv6-opts", "unknown:61", "cftp", "unknown:63",
+	"sat-expak", "kryptolan", "rvd", "ippc", "unknown:68", "sat-mon", "visa", "ipcv",
+	"cpnx", "cphb", "wsn", "pvp", "br-sat-mon", "sun-nd", "wb-mon", "wb-expak", 
+	"iso-ip", "vmtp", "secure-vmtp", "vines", "ttp", "nfsnet-igp", "dgp", "tcf", 
+	"eigrp", "ospf", "sprite-rpc", "larp", "mtp", "ax.25", "ipip", "micp",
+	"scc-sp", "etherip", "encap", "unknown:99", "gmtp", "ifmp", "pnni", "pim",
+	"aris", "scps", "qnx", "a/n", "ipcomp", "snp", "compaq-peer", "ipx-in-ip",
+	"vrrp", "pgm", "unknown:114", "l2tp", "ddx", "iatp", "stp", "srp",
+	"uti", "smp", "sm", "ptp", "isis", "fire", "crtp", "crdup",
+	"sscopmce", "iplt", "sps", "pipe", "sctp", "fc", "unkown:134", "unknown:135",
+	"unknown:136", "unknown:137", "unknown:138", "unknown:139", "unknown:140", "unknown:141", "unknown:142", "unknown:143",
+	"unknown:144", "unknown:145", "unknown:146", "unknown:147", "unknown:148", "unknown:149", "unknown:150", "unknown:151",
+	"unknown:152", "unknown:153", "unknown:154", "unknown:155", "unknown:156", "unknown:157", "unknown:158", "unknown:159",
+	"unknown:160", "unknown:161", "unknown:162", "unknown:163", "unknown:164", "unknown:165", "unknown:166", "unknown:167",
+	"unknown:168", "unknown:169", "unknown:170", "unknown:171", "unknown:172", "unknown:173", "unknown:174", "unknown:175",
+	"unknown:176", "unknown:177", "unknown:178", "unknown:179", "unknown:180", "unknown:181", "unknown:182", "unknown:183",
+	"unknown:184", "unknown:185", "unknown:186", "unknown:187", "unknown:188", "unknown:189", "unknown:190", "unknown:191",
+	"unknown:192", "unknown:193", "unknown:194", "unknown:195", "unknown:196", "unknown:197", "unknown:198", "unknown:199",
+	"unknown:200", "unknown:201", "unknown:202", "unknown:203", "unknown:204", "unknown:205", "unknown:206", "unknown:207",
+	"unknown:208", "unknown:209", "unknown:210", "unknown:211", "unknown:212", "unknown:213", "unknown:214", "unknown:215",
+	"unknown:216", "unknown:217", "unknown:218", "unknown:219", "unknown:220", "unknown:221", "unknown:222", "unknown:223",
+	"unknown:224", "unknown:225", "unknown:226", "unknown:227", "unknown:228", "unknown:229", "unknown:230", "unknown:231",
+	"unknown:232", "unknown:233", "unknown:234", "unknown:235", "unknown:236", "unknown:237", "unknown:238", "unknown:239",
+	"unknown:240", "unknown:241", "unknown:242", "unknown:243", "unknown:244", "unknown:245", "unknown:246", "unknown:247",
+	"unknown:248", "unknown:249", "unknown:250", "unknown:251", "unknown:252", "unknown:253", "unknown:254", "unknown:255",
+	};
+
+static const char * gr_socktypes[SOCK_MAX] = {
+	"unknown:0", "stream", "dgram", "raw", "rdm", "seqpacket", "unknown:6", 
+	"unknown:7", "unknown:8", "unknown:9", "packet"
+	};
+
+static const char * gr_sockfamilies[AF_MAX] = {
+	"unspec", "unix", "inet", "ax25", "ipx", "appletalk", "netrom", "bridge", "atmpvc", "x25",
+	"inet6", "rose", "decnet", "netbeui", "security", "key", "netlink", "packet", "ash",
+	"econet", "atmsvc", "rds", "sna", "irda", "ppox", "wanpipe", "llc", "fam_27", "fam_28",
+	"tipc", "bluetooth", "iucv", "rxrpc", "isdn", "phonet", "ieee802154", "ciaf", "alg",
+	"nfc", "vsock", "kcm"
+	};
+
+const char *
+gr_proto_to_name(unsigned char proto)
+{
+	return gr_protocols[proto];
+}
+
+const char *
+gr_socktype_to_name(unsigned char type)
+{
+	return gr_socktypes[type];
+}
+
+const char *
+gr_sockfamily_to_name(unsigned char family)
+{
+	return gr_sockfamilies[family];
+}
+
+extern const struct net_proto_family __rcu *net_families[NPROTO] __read_mostly;
+
+int
+gr_search_socket(const int domain, const int type, const int protocol)
+{
+	struct acl_subject_label *curr;
+	const struct cred *cred = current_cred();
+
+	if (unlikely(!gr_acl_is_enabled()))
+		goto exit;
+
+	if ((domain < 0) || (type < 0) || (protocol < 0) ||
+	    (domain >= AF_MAX) || (type >= SOCK_MAX) || (protocol >= IPPROTO_MAX))
+		goto exit;	// let the kernel handle it
+
+	curr = current->acl;
+
+	if (curr->sock_families[domain / 32] & (1U << (domain % 32))) {
+		/* the family is allowed, if this is PF_INET allow it only if
+		   the extra sock type/protocol checks pass */
+		if (domain == PF_INET)
+			goto inet_check;
+		goto exit;
+	} else {
+		if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) {
+			__u32 fakeip = 0;
+			security_learn(GR_IP_LEARN_MSG, current->role->rolename,
+				       current->role->roletype, GR_GLOBAL_UID(cred->uid),
+				       GR_GLOBAL_GID(cred->gid), current->exec_file ?
+				       gr_to_filename(current->exec_file->f_path.dentry,
+				       current->exec_file->f_path.mnt) :
+				       curr->filename, curr->filename,
+				       &fakeip, domain, 0, 0, GR_SOCK_FAMILY,
+				       &current->signal->saved_ip);
+			goto exit;
+		}
+		goto exit_fail;
+	}
+
+inet_check:
+	/* the rest of this checking is for IPv4 only */
+	if (!curr->ips)
+		goto exit;
+
+	if ((curr->ip_type & (1U << type)) &&
+	    (curr->ip_proto[protocol / 32] & (1U << (protocol % 32))))
+		goto exit;
+
+	if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) {
+		/* we don't place acls on raw sockets , and sometimes
+		   dgram/ip sockets are opened for ioctl and not
+		   bind/connect, so we'll fake a bind learn log */
+		if (type == SOCK_RAW || type == SOCK_PACKET) {
+			__u32 fakeip = 0;
+			security_learn(GR_IP_LEARN_MSG, current->role->rolename,
+				       current->role->roletype, GR_GLOBAL_UID(cred->uid),
+				       GR_GLOBAL_GID(cred->gid), current->exec_file ?
+				       gr_to_filename(current->exec_file->f_path.dentry,
+				       current->exec_file->f_path.mnt) :
+				       curr->filename, curr->filename,
+				       &fakeip, 0, type,
+				       protocol, GR_CONNECT, &current->signal->saved_ip);
+		} else if ((type == SOCK_DGRAM) && (protocol == IPPROTO_IP)) {
+			__u32 fakeip = 0;
+			security_learn(GR_IP_LEARN_MSG, current->role->rolename,
+				       current->role->roletype, GR_GLOBAL_UID(cred->uid),
+				       GR_GLOBAL_GID(cred->gid), current->exec_file ?
+				       gr_to_filename(current->exec_file->f_path.dentry,
+				       current->exec_file->f_path.mnt) :
+				       curr->filename, curr->filename,
+				       &fakeip, 0, type,
+				       protocol, GR_BIND, &current->signal->saved_ip);
+		}
+		/* we'll log when they use connect or bind */
+		goto exit;
+	}
+
+exit_fail:
+	if (domain == PF_INET)
+		gr_log_str3(GR_DONT_AUDIT, GR_SOCK_MSG, gr_sockfamily_to_name(domain), 
+			    gr_socktype_to_name(type), gr_proto_to_name(protocol));
+	else if (rcu_access_pointer(net_families[domain]) != NULL)
+		gr_log_str2_int(GR_DONT_AUDIT, GR_SOCK_NOINET_MSG, gr_sockfamily_to_name(domain), 
+			    gr_socktype_to_name(type), protocol);
+
+	return 0;
+exit:
+	return 1;
+}
+
+int check_ip_policy(struct acl_ip_label *ip, __u32 ip_addr, __u16 ip_port, __u8 protocol, const int mode, const int type, __u32 our_addr, __u32 our_netmask)
+{
+	if ((ip->mode & mode) &&
+	    (ip_port >= ip->low) &&
+	    (ip_port <= ip->high) &&
+	    ((ntohl(ip_addr) & our_netmask) ==
+	     (ntohl(our_addr) & our_netmask))
+	    && (ip->proto[protocol / 32] & (1U << (protocol % 32)))
+	    && (ip->type & (1U << type))) {
+		if (ip->mode & GR_INVERT)
+			return 2; // specifically denied
+		else
+			return 1; // allowed
+	}
+
+	return 0; // not specifically allowed, may continue parsing
+}
+
+static int
+gr_search_connectbind(const int full_mode, struct sock *sk,
+		      struct sockaddr_in *addr, const int type)
+{
+	char iface[IFNAMSIZ] = {0};
+	struct acl_subject_label *curr;
+	struct acl_ip_label *ip;
+	struct inet_sock *isk;
+	struct net_device *dev;
+	struct in_device *idev;
+	unsigned long i;
+	int ret;
+	int mode = full_mode & (GR_BIND | GR_CONNECT);
+	__u32 ip_addr = 0;
+	__u32 our_addr;
+	__u32 our_netmask;
+	char *p;
+	__u16 ip_port = 0;
+	const struct cred *cred = current_cred();
+
+	if (unlikely(!gr_acl_is_enabled() || sk->sk_family != PF_INET))
+		return 0;
+
+	curr = current->acl;
+	isk = inet_sk(sk);
+
+	/* INADDR_ANY overriding for binds, inaddr_any_override is already in network order */
+	if ((full_mode & GR_BINDOVERRIDE) && addr->sin_addr.s_addr == htonl(INADDR_ANY) && curr->inaddr_any_override != 0)
+		addr->sin_addr.s_addr = curr->inaddr_any_override;
+	if ((full_mode & GR_CONNECT) && isk->inet_saddr == htonl(INADDR_ANY) && curr->inaddr_any_override != 0) {
+		struct sockaddr_in saddr;
+		int err;
+
+		saddr.sin_family = AF_INET;
+		saddr.sin_addr.s_addr = curr->inaddr_any_override;
+		saddr.sin_port = isk->inet_sport;
+
+		err = security_socket_bind(sk->sk_socket, (struct sockaddr *)&saddr, sizeof(struct sockaddr_in));
+		if (err)
+			return err;
+
+		err = sk->sk_socket->ops->bind(sk->sk_socket, (struct sockaddr *)&saddr, sizeof(struct sockaddr_in));
+		if (err)
+			return err;
+	}
+
+	if (!curr->ips)
+		return 0;
+
+	ip_addr = addr->sin_addr.s_addr;
+	ip_port = ntohs(addr->sin_port);
+
+	if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) {
+		security_learn(GR_IP_LEARN_MSG, current->role->rolename,
+			       current->role->roletype, GR_GLOBAL_UID(cred->uid),
+			       GR_GLOBAL_GID(cred->gid), current->exec_file ?
+			       gr_to_filename(current->exec_file->f_path.dentry,
+			       current->exec_file->f_path.mnt) :
+			       curr->filename, curr->filename,
+			       &ip_addr, ip_port, type,
+			       sk->sk_protocol, mode, &current->signal->saved_ip);
+		return 0;
+	}
+
+	for (i = 0; i < curr->ip_num; i++) {
+		ip = *(curr->ips + i);
+		if (ip->iface != NULL) {
+			strncpy(iface, ip->iface, IFNAMSIZ - 1);
+			p = strchr(iface, ':');
+			if (p != NULL)
+				*p = '\0';
+			dev = dev_get_by_name(sock_net(sk), iface);
+			if (dev == NULL)
+				continue;
+			idev = in_dev_get(dev);
+			if (idev == NULL) {
+				dev_put(dev);
+				continue;
+			}
+			rcu_read_lock();
+			for_ifa(idev) {
+				if (!strcmp(ip->iface, ifa->ifa_label)) {
+					our_addr = ifa->ifa_address;
+					our_netmask = 0xffffffff;
+					ret = check_ip_policy(ip, ip_addr, ip_port, sk->sk_protocol, mode, type, our_addr, our_netmask);
+					if (ret == 1) {
+						rcu_read_unlock();
+						in_dev_put(idev);
+						dev_put(dev);
+						return 0;
+					} else if (ret == 2) {
+						rcu_read_unlock();
+						in_dev_put(idev);
+						dev_put(dev);
+						goto denied;
+					}
+				}
+			} endfor_ifa(idev);
+			rcu_read_unlock();
+			in_dev_put(idev);
+			dev_put(dev);
+		} else {
+			our_addr = ip->addr;
+			our_netmask = ip->netmask;
+			ret = check_ip_policy(ip, ip_addr, ip_port, sk->sk_protocol, mode, type, our_addr, our_netmask);
+			if (ret == 1)
+				return 0;
+			else if (ret == 2)
+				goto denied;
+		}
+	}
+
+denied:
+	if (mode == GR_BIND)
+		gr_log_int5_str2(GR_DONT_AUDIT, GR_BIND_ACL_MSG, &ip_addr, ip_port, gr_socktype_to_name(type), gr_proto_to_name(sk->sk_protocol));
+	else if (mode == GR_CONNECT)
+		gr_log_int5_str2(GR_DONT_AUDIT, GR_CONNECT_ACL_MSG, &ip_addr, ip_port, gr_socktype_to_name(type), gr_proto_to_name(sk->sk_protocol));
+
+	return -EACCES;
+}
+
+int
+gr_search_connect(struct socket *sock, struct sockaddr_in *addr)
+{
+	/* always allow disconnection of dgram sockets with connect */
+	if (addr->sin_family == AF_UNSPEC)
+		return 0;
+	return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sock->sk, addr, sock->type);
+}
+
+int
+gr_search_bind(struct socket *sock, struct sockaddr_in *addr)
+{
+	return gr_search_connectbind(GR_BIND | GR_BINDOVERRIDE, sock->sk, addr, sock->type);
+}
+
+int gr_search_listen(struct socket *sock)
+{
+	struct sock *sk = sock->sk;
+	struct sockaddr_in addr;
+
+	addr.sin_addr.s_addr = inet_sk(sk)->inet_saddr;
+	addr.sin_port = inet_sk(sk)->inet_sport;
+
+	return gr_search_connectbind(GR_BIND | GR_CONNECTOVERRIDE, sock->sk, &addr, sock->type);
+}
+
+int gr_search_accept(struct socket *sock)
+{
+	struct sock *sk = sock->sk;
+	struct sockaddr_in addr;
+
+	addr.sin_addr.s_addr = inet_sk(sk)->inet_saddr;
+	addr.sin_port = inet_sk(sk)->inet_sport;
+
+	return gr_search_connectbind(GR_BIND | GR_CONNECTOVERRIDE, sock->sk, &addr, sock->type);
+}
+
+int
+gr_search_udp_sendmsg(struct sock *sk, struct sockaddr_in *addr)
+{
+	if (addr)
+		return gr_search_connectbind(GR_CONNECT, sk, addr, SOCK_DGRAM);
+	else {
+		struct sockaddr_in sin;
+		const struct inet_sock *inet = inet_sk(sk);
+
+		sin.sin_addr.s_addr = inet->inet_daddr;
+		sin.sin_port = inet->inet_dport;
+
+		return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sk, &sin, SOCK_DGRAM);
+	}
+}
+
+int
+gr_search_udp_recvmsg(struct sock *sk, const struct sk_buff *skb)
+{
+	struct sockaddr_in sin;
+
+	if (unlikely(skb->len < sizeof (struct udphdr)))
+		return 0;	// skip this packet
+
+	sin.sin_addr.s_addr = ip_hdr(skb)->saddr;
+	sin.sin_port = udp_hdr(skb)->source;
+
+	return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sk, &sin, SOCK_DGRAM);
+}
diff --git a/grsecurity/gracl_learn.c b/grsecurity/gracl_learn.c
new file mode 100644
index 0000000..25f54ef
--- /dev/null
+++ b/grsecurity/gracl_learn.c
@@ -0,0 +1,207 @@
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/poll.h>
+#include <linux/string.h>
+#include <linux/file.h>
+#include <linux/types.h>
+#include <linux/vmalloc.h>
+#include <linux/grinternal.h>
+
+extern ssize_t write_grsec_handler(struct file * file, const char __user * buf,
+				   size_t count, loff_t *ppos);
+extern int gr_acl_is_enabled(void);
+
+static DECLARE_WAIT_QUEUE_HEAD(learn_wait);
+static int gr_learn_attached;
+
+/* use a 512k buffer */
+#define LEARN_BUFFER_SIZE (512 * 1024)
+
+static DEFINE_SPINLOCK(gr_learn_lock);
+static DEFINE_MUTEX(gr_learn_user_mutex);
+
+/* we need to maintain two buffers, so that the kernel context of grlearn
+   uses a semaphore around the userspace copying, and the other kernel contexts
+   use a spinlock when copying into the buffer, since they cannot sleep
+*/
+static char *learn_buffer;
+static char *learn_buffer_user;
+static int learn_buffer_len;
+static int learn_buffer_user_len;
+
+static ssize_t
+read_learn(struct file *file, char __user * buf, size_t count, loff_t * ppos)
+{
+	DECLARE_WAITQUEUE(wait, current);
+	ssize_t retval = 0;
+
+	add_wait_queue(&learn_wait, &wait);
+	set_current_state(TASK_INTERRUPTIBLE);
+	do {
+		mutex_lock(&gr_learn_user_mutex);
+		spin_lock(&gr_learn_lock);
+		if (learn_buffer_len)
+			break;
+		spin_unlock(&gr_learn_lock);
+		mutex_unlock(&gr_learn_user_mutex);
+		if (file->f_flags & O_NONBLOCK) {
+			retval = -EAGAIN;
+			goto out;
+		}
+		if (signal_pending(current)) {
+			retval = -ERESTARTSYS;
+			goto out;
+		}
+
+		schedule();
+	} while (1);
+
+	memcpy(learn_buffer_user, learn_buffer, learn_buffer_len);
+	learn_buffer_user_len = learn_buffer_len;
+	retval = learn_buffer_len;
+	learn_buffer_len = 0;
+
+	spin_unlock(&gr_learn_lock);
+
+	if (copy_to_user(buf, learn_buffer_user, learn_buffer_user_len))
+		retval = -EFAULT;
+
+	mutex_unlock(&gr_learn_user_mutex);
+out:
+	set_current_state(TASK_RUNNING);
+	remove_wait_queue(&learn_wait, &wait);
+	return retval;
+}
+
+static unsigned int
+poll_learn(struct file * file, poll_table * wait)
+{
+	poll_wait(file, &learn_wait, wait);
+
+	if (learn_buffer_len)
+		return (POLLIN | POLLRDNORM);
+
+	return 0;
+}
+
+void
+gr_clear_learn_entries(void)
+{
+	char *tmp;
+
+	mutex_lock(&gr_learn_user_mutex);
+	spin_lock(&gr_learn_lock);
+	tmp = learn_buffer;
+	learn_buffer = NULL;
+	spin_unlock(&gr_learn_lock);
+	if (tmp)
+		vfree(tmp);
+	if (learn_buffer_user != NULL) {
+		vfree(learn_buffer_user);
+		learn_buffer_user = NULL;
+	}
+	learn_buffer_len = 0;
+	mutex_unlock(&gr_learn_user_mutex);
+
+	return;
+}
+
+void
+gr_add_learn_entry(const char *fmt, ...)
+{
+	va_list args;
+	unsigned int len;
+
+	if (!gr_learn_attached)
+		return;
+
+	spin_lock(&gr_learn_lock);
+
+	/* leave a gap at the end so we know when it's "full" but don't have to
+	   compute the exact length of the string we're trying to append
+	*/
+	if (learn_buffer_len > LEARN_BUFFER_SIZE - 16384) {
+		spin_unlock(&gr_learn_lock);
+		wake_up_interruptible(&learn_wait);
+		return;
+	}
+	if (learn_buffer == NULL) {
+		spin_unlock(&gr_learn_lock);
+		return;
+	}
+
+	va_start(args, fmt);
+	len = vsnprintf(learn_buffer + learn_buffer_len, LEARN_BUFFER_SIZE - learn_buffer_len, fmt, args);
+	va_end(args);
+
+	learn_buffer_len += len + 1;
+
+	spin_unlock(&gr_learn_lock);
+	wake_up_interruptible(&learn_wait);
+
+	return;
+}
+
+static int
+open_learn(struct inode *inode, struct file *file)
+{
+	if (file->f_mode & FMODE_READ && gr_learn_attached)
+		return -EBUSY;
+	if (file->f_mode & FMODE_READ) {
+		int retval = 0;
+		mutex_lock(&gr_learn_user_mutex);
+		if (learn_buffer == NULL)
+			learn_buffer = vmalloc(LEARN_BUFFER_SIZE);
+		if (learn_buffer_user == NULL)
+			learn_buffer_user = vmalloc(LEARN_BUFFER_SIZE);
+		if (learn_buffer == NULL) {
+			retval = -ENOMEM;
+			goto out_error;
+		}
+		if (learn_buffer_user == NULL) {
+			retval = -ENOMEM;
+			goto out_error;
+		}
+		learn_buffer_len = 0;
+		learn_buffer_user_len = 0;
+		gr_learn_attached = 1;
+out_error:
+		mutex_unlock(&gr_learn_user_mutex);
+		return retval;
+	}
+	return 0;
+}
+
+static int
+close_learn(struct inode *inode, struct file *file)
+{
+	if (file->f_mode & FMODE_READ) {
+		char *tmp = NULL;
+		mutex_lock(&gr_learn_user_mutex);
+		spin_lock(&gr_learn_lock);
+		tmp = learn_buffer;
+		learn_buffer = NULL;
+		spin_unlock(&gr_learn_lock);
+		if (tmp)
+			vfree(tmp);
+		if (learn_buffer_user != NULL) {
+			vfree(learn_buffer_user);
+			learn_buffer_user = NULL;
+		}
+		learn_buffer_len = 0;
+		learn_buffer_user_len = 0;
+		gr_learn_attached = 0;
+		mutex_unlock(&gr_learn_user_mutex);
+	}
+
+	return 0;
+}
+		
+const struct file_operations grsec_fops = {
+	.read		= read_learn,
+	.write		= write_grsec_handler,
+	.open		= open_learn,
+	.release	= close_learn,
+	.poll		= poll_learn,
+};
diff --git a/grsecurity/gracl_policy.c b/grsecurity/gracl_policy.c
new file mode 100644
index 0000000..696d76d
--- /dev/null
+++ b/grsecurity/gracl_policy.c
@@ -0,0 +1,1784 @@
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/file.h>
+#include <linux/fs.h>
+#include <linux/namei.h>
+#include <linux/mount.h>
+#include <linux/tty.h>
+#include <linux/proc_fs.h>
+#include <linux/lglock.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/types.h>
+#include <linux/sysctl.h>
+#include <linux/netdevice.h>
+#include <linux/ptrace.h>
+#include <linux/gracl.h>
+#include <linux/gralloc.h>
+#include <linux/security.h>
+#include <linux/grinternal.h>
+#include <linux/pid_namespace.h>
+#include <linux/stop_machine.h>
+#include <linux/fdtable.h>
+#include <linux/percpu.h>
+#include <linux/lglock.h>
+#include <linux/hugetlb.h>
+#include <linux/posix-timers.h>
+#include "../fs/mount.h"
+
+#include <asm/uaccess.h>
+#include <asm/errno.h>
+#include <asm/mman.h>
+
+extern struct gr_policy_state *polstate;
+
+#define FOR_EACH_ROLE_START(role) \
+	role = polstate->role_list; \
+	while (role) {
+
+#define FOR_EACH_ROLE_END(role) \
+		role = role->prev; \
+	}
+
+struct path gr_real_root;
+
+extern struct gr_alloc_state *current_alloc_state;
+
+u16 acl_sp_role_value;
+
+static DEFINE_MUTEX(gr_dev_mutex);
+
+extern int chkpw(struct gr_arg *entry, unsigned char *salt, unsigned char *sum);
+extern void gr_clear_learn_entries(void);
+
+struct gr_arg *gr_usermode __read_only;
+unsigned char *gr_system_salt __read_only;
+unsigned char *gr_system_sum __read_only;
+
+static unsigned int gr_auth_attempts = 0;
+static unsigned long gr_auth_expires = 0UL;
+
+struct acl_object_label *fakefs_obj_rw;
+struct acl_object_label *fakefs_obj_rwx;
+
+extern int gr_init_uidset(void);
+extern void gr_free_uidset(void);
+extern int gr_find_and_remove_uid(uid_t uid);
+
+extern struct acl_subject_label *__gr_get_subject_for_task(const struct gr_policy_state *state, struct task_struct *task, const char *filename, int fallback);
+extern void __gr_apply_subject_to_task(const struct gr_policy_state *state, struct task_struct *task, struct acl_subject_label *subj);
+extern int gr_streq(const char *a, const char *b, const unsigned int lena, const unsigned int lenb);
+extern void __insert_inodev_entry(const struct gr_policy_state *state, struct inodev_entry *entry);
+extern struct acl_role_label *__lookup_acl_role_label(const struct gr_policy_state *state, const struct task_struct *task, const uid_t uid, const gid_t gid);
+extern void insert_acl_obj_label(struct acl_object_label *obj, struct acl_subject_label *subj);
+extern void insert_acl_subj_label(struct acl_subject_label *obj, struct acl_role_label *role);
+extern struct name_entry * __lookup_name_entry(const struct gr_policy_state *state, const char *name);
+extern char *gr_to_filename_rbac(const struct dentry *dentry, const struct vfsmount *mnt);
+extern struct acl_subject_label *lookup_acl_subj_label(const u64 ino, const dev_t dev, const struct acl_role_label *role);
+extern struct acl_subject_label *lookup_acl_subj_label_deleted(const u64 ino, const dev_t dev, const struct acl_role_label *role);
+extern void assign_special_role(const char *rolename);
+extern struct acl_subject_label *chk_subj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt, const struct acl_role_label *role);
+extern int gr_rbac_disable(void *unused);
+extern void gr_enable_rbac_system(void);
+
+static int copy_acl_object_label_normal(struct acl_object_label *obj, const struct acl_object_label *userp)
+{
+	if (copy_from_user(obj, userp, sizeof(struct acl_object_label)))
+		return -EFAULT;
+
+	return 0;
+}
+
+static int copy_acl_ip_label_normal(struct acl_ip_label *ip, const struct acl_ip_label *userp)
+{
+	if (copy_from_user(ip, userp, sizeof(struct acl_ip_label)))
+		return -EFAULT;
+
+	return 0;
+}
+
+static int copy_acl_subject_label_normal(struct acl_subject_label *subj, const struct acl_subject_label *userp)
+{
+	if (copy_from_user(subj, userp, sizeof(struct acl_subject_label)))
+		return -EFAULT;
+
+	return 0;
+}
+
+static int copy_acl_role_label_normal(struct acl_role_label *role, const struct acl_role_label *userp)
+{
+	if (copy_from_user(role, userp, sizeof(struct acl_role_label)))
+		return -EFAULT;
+
+	return 0;
+}
+
+static int copy_role_allowed_ip_normal(struct role_allowed_ip *roleip, const struct role_allowed_ip *userp)
+{
+	if (copy_from_user(roleip, userp, sizeof(struct role_allowed_ip)))
+		return -EFAULT;
+
+	return 0;
+}
+
+static int copy_sprole_pw_normal(struct sprole_pw *pw, unsigned long idx, const struct sprole_pw *userp)
+{
+	if (copy_from_user(pw, userp + idx, sizeof(struct sprole_pw)))
+		return -EFAULT;
+
+	return 0;
+}
+
+static int copy_gr_hash_struct_normal(struct gr_hash_struct *hash, const struct gr_hash_struct *userp)
+{
+	if (copy_from_user(hash, userp, sizeof(struct gr_hash_struct)))
+		return -EFAULT;
+
+	return 0;
+}
+
+static int copy_role_transition_normal(struct role_transition *trans, const struct role_transition *userp)
+{
+	if (copy_from_user(trans, userp, sizeof(struct role_transition)))
+		return -EFAULT;
+
+	return 0;
+}
+
+int copy_pointer_from_array_normal(void *ptr, unsigned long idx, const void *userp)
+{
+	if (copy_from_user(ptr, userp + (idx * sizeof(void *)), sizeof(void *)))
+		return -EFAULT;
+
+	return 0;
+}
+
+static int copy_gr_arg_wrapper_normal(const char __user *buf, struct gr_arg_wrapper *uwrap)
+{
+	if (copy_from_user(uwrap, buf, sizeof (struct gr_arg_wrapper)))
+		return -EFAULT;
+
+	if ((uwrap->version != GRSECURITY_VERSION) ||
+	    (uwrap->size != sizeof(struct gr_arg)))
+		return -EINVAL;
+
+	return 0;
+}
+
+static int copy_gr_arg_normal(const struct gr_arg __user *buf, struct gr_arg *arg)
+{
+	if (copy_from_user(arg, buf, sizeof (struct gr_arg)))
+		return -EFAULT;
+
+	return 0;
+}
+
+static size_t get_gr_arg_wrapper_size_normal(void)
+{
+	return sizeof(struct gr_arg_wrapper);
+}
+
+#ifdef CONFIG_COMPAT
+extern int copy_gr_arg_wrapper_compat(const char *buf, struct gr_arg_wrapper *uwrap);
+extern int copy_gr_arg_compat(const struct gr_arg __user *buf, struct gr_arg *arg);
+extern int copy_acl_object_label_compat(struct acl_object_label *obj, const struct acl_object_label *userp);
+extern int copy_acl_subject_label_compat(struct acl_subject_label *subj, const struct acl_subject_label *userp);
+extern int copy_acl_role_label_compat(struct acl_role_label *role, const struct acl_role_label *userp);
+extern int copy_role_allowed_ip_compat(struct role_allowed_ip *roleip, const struct role_allowed_ip *userp);
+extern int copy_role_transition_compat(struct role_transition *trans, const struct role_transition *userp);
+extern int copy_gr_hash_struct_compat(struct gr_hash_struct *hash, const struct gr_hash_struct *userp);
+extern int copy_pointer_from_array_compat(void *ptr, unsigned long idx, const void *userp);
+extern int copy_acl_ip_label_compat(struct acl_ip_label *ip, const struct acl_ip_label *userp);
+extern int copy_sprole_pw_compat(struct sprole_pw *pw, unsigned long idx, const struct sprole_pw *userp);
+extern size_t get_gr_arg_wrapper_size_compat(void);
+
+int (* copy_gr_arg_wrapper)(const char *buf, struct gr_arg_wrapper *uwrap) __read_only;
+int (* copy_gr_arg)(const struct gr_arg *buf, struct gr_arg *arg) __read_only;
+int (* copy_acl_object_label)(struct acl_object_label *obj, const struct acl_object_label *userp) __read_only;
+int (* copy_acl_subject_label)(struct acl_subject_label *subj, const struct acl_subject_label *userp) __read_only;
+int (* copy_acl_role_label)(struct acl_role_label *role, const struct acl_role_label *userp) __read_only;
+int (* copy_acl_ip_label)(struct acl_ip_label *ip, const struct acl_ip_label *userp) __read_only;
+int (* copy_pointer_from_array)(void *ptr, unsigned long idx, const void *userp) __read_only;
+int (* copy_sprole_pw)(struct sprole_pw *pw, unsigned long idx, const struct sprole_pw *userp) __read_only;
+int (* copy_gr_hash_struct)(struct gr_hash_struct *hash, const struct gr_hash_struct *userp) __read_only;
+int (* copy_role_transition)(struct role_transition *trans, const struct role_transition *userp) __read_only;
+int (* copy_role_allowed_ip)(struct role_allowed_ip *roleip, const struct role_allowed_ip *userp) __read_only;
+size_t (* get_gr_arg_wrapper_size)(void) __read_only;
+
+#else
+#define copy_gr_arg_wrapper copy_gr_arg_wrapper_normal
+#define copy_gr_arg copy_gr_arg_normal
+#define copy_gr_hash_struct copy_gr_hash_struct_normal
+#define copy_acl_object_label copy_acl_object_label_normal
+#define copy_acl_subject_label copy_acl_subject_label_normal
+#define copy_acl_role_label copy_acl_role_label_normal
+#define copy_acl_ip_label copy_acl_ip_label_normal
+#define copy_pointer_from_array copy_pointer_from_array_normal
+#define copy_sprole_pw copy_sprole_pw_normal
+#define copy_role_transition copy_role_transition_normal
+#define copy_role_allowed_ip copy_role_allowed_ip_normal
+#define get_gr_arg_wrapper_size get_gr_arg_wrapper_size_normal
+#endif
+
+static struct acl_subject_label *
+lookup_subject_map(const struct acl_subject_label *userp)
+{
+	unsigned int index = gr_shash(userp, polstate->subj_map_set.s_size);
+	struct subject_map *match;
+
+	match = polstate->subj_map_set.s_hash[index];
+
+	while (match && match->user != userp)
+		match = match->next;
+
+	if (match != NULL)
+		return match->kernel;
+	else
+		return NULL;
+}
+
+static void
+insert_subj_map_entry(struct subject_map *subjmap)
+{
+	unsigned int index = gr_shash(subjmap->user, polstate->subj_map_set.s_size);
+	struct subject_map **curr;
+
+	subjmap->prev = NULL;
+
+	curr = &polstate->subj_map_set.s_hash[index];
+	if (*curr != NULL)
+		(*curr)->prev = subjmap;
+
+	subjmap->next = *curr;
+	*curr = subjmap;
+
+	return;
+}
+
+static void
+__insert_acl_role_label(struct acl_role_label *role, uid_t uidgid)
+{
+	unsigned int index =
+	    gr_rhash(uidgid, role->roletype & (GR_ROLE_USER | GR_ROLE_GROUP), polstate->acl_role_set.r_size);
+	struct acl_role_label **curr;
+	struct acl_role_label *tmp, *tmp2;
+
+	curr = &polstate->acl_role_set.r_hash[index];
+
+	/* simple case, slot is empty, just set it to our role */
+	if (*curr == NULL) {
+		*curr = role;
+	} else {
+		/* example:
+		   1 -> 2 -> 3 (adding 2 -> 3 to here)
+		   2 -> 3
+		*/
+		/* first check to see if we can already be reached via this slot */
+		tmp = *curr;
+		while (tmp && tmp != role)
+			tmp = tmp->next;
+		if (tmp == role) {
+			/* we don't need to add ourselves to this slot's chain */
+			return;
+		}
+		/* we need to add ourselves to this chain, two cases */
+		if (role->next == NULL) {
+			/* simple case, append the current chain to our role */
+			role->next = *curr;
+			*curr = role;
+		} else {
+			/* 1 -> 2 -> 3 -> 4
+			   2 -> 3 -> 4
+			   3 -> 4 (adding 1 -> 2 -> 3 -> 4 to here)
+			*/			   
+			/* trickier case: walk our role's chain until we find
+			   the role for the start of the current slot's chain */
+			tmp = role;
+			tmp2 = *curr;
+			while (tmp->next && tmp->next != tmp2)
+				tmp = tmp->next;
+			if (tmp->next == tmp2) {
+				/* from example above, we found 3, so just
+				   replace this slot's chain with ours */
+				*curr = role;
+			} else {
+				/* we didn't find a subset of our role's chain
+				   in the current slot's chain, so append their
+				   chain to ours, and set us as the first role in
+				   the slot's chain
+
+				   we could fold this case with the case above,
+				   but making it explicit for clarity
+				*/
+				tmp->next = tmp2;
+				*curr = role;
+			}
+		}
+	}
+
+	return;
+}
+
+static void
+insert_acl_role_label(struct acl_role_label *role)
+{
+	int i;
+
+	if (polstate->role_list == NULL) {
+		polstate->role_list = role;
+		role->prev = NULL;
+	} else {
+		role->prev = polstate->role_list;
+		polstate->role_list = role;
+	}
+	
+	/* used for hash chains */
+	role->next = NULL;
+
+	if (role->roletype & GR_ROLE_DOMAIN) {
+		for (i = 0; i < role->domain_child_num; i++)
+			__insert_acl_role_label(role, role->domain_children[i]);
+	} else
+		__insert_acl_role_label(role, role->uidgid);
+}
+					
+static int
+insert_name_entry(char *name, const u64 inode, const dev_t device, __u8 deleted)
+{
+	struct name_entry **curr, *nentry;
+	struct inodev_entry *ientry;
+	unsigned int len = strlen(name);
+	unsigned int key = full_name_hash((const unsigned char *)name, len);
+	unsigned int index = key % polstate->name_set.n_size;
+
+	curr = &polstate->name_set.n_hash[index];
+
+	while (*curr && ((*curr)->key != key || !gr_streq((*curr)->name, name, (*curr)->len, len)))
+		curr = &((*curr)->next);
+
+	if (*curr != NULL)
+		return 1;
+
+	nentry = acl_alloc(sizeof (struct name_entry));
+	if (nentry == NULL)
+		return 0;
+	ientry = acl_alloc(sizeof (struct inodev_entry));
+	if (ientry == NULL)
+		return 0;
+	ientry->nentry = nentry;
+
+	nentry->key = key;
+	nentry->name = name;
+	nentry->inode = inode;
+	nentry->device = device;
+	nentry->len = len;
+	nentry->deleted = deleted;
+
+	nentry->prev = NULL;
+	curr = &polstate->name_set.n_hash[index];
+	if (*curr != NULL)
+		(*curr)->prev = nentry;
+	nentry->next = *curr;
+	*curr = nentry;
+
+	/* insert us into the table searchable by inode/dev */
+	__insert_inodev_entry(polstate, ientry);
+
+	return 1;
+}
+
+/* allocating chained hash tables, so optimal size is where lambda ~ 1 */
+
+static void *
+create_table(__u32 * len, int elementsize)
+{
+	unsigned int table_sizes[] = {
+		7, 13, 31, 61, 127, 251, 509, 1021, 2039, 4093, 8191, 16381,
+		32749, 65521, 131071, 262139, 524287, 1048573, 2097143,
+		4194301, 8388593, 16777213, 33554393, 67108859
+	};
+	void *newtable = NULL;
+	unsigned int pwr = 0;
+
+	while ((pwr < ((sizeof (table_sizes) / sizeof (table_sizes[0])) - 1)) &&
+	       table_sizes[pwr] <= *len)
+		pwr++;
+
+	if (table_sizes[pwr] <= *len || (table_sizes[pwr] > ULONG_MAX / elementsize))
+		return newtable;
+
+	if ((table_sizes[pwr] * elementsize) <= PAGE_SIZE)
+		newtable =
+		    kmalloc(table_sizes[pwr] * elementsize, GFP_KERNEL);
+	else
+		newtable = vmalloc(table_sizes[pwr] * elementsize);
+
+	*len = table_sizes[pwr];
+
+	return newtable;
+}
+
+static int
+init_variables(const struct gr_arg *arg, bool reload)
+{
+	struct task_struct *reaper = init_pid_ns.child_reaper;
+	unsigned int stacksize;
+
+	polstate->subj_map_set.s_size = arg->role_db.num_subjects;
+	polstate->acl_role_set.r_size = arg->role_db.num_roles + arg->role_db.num_domain_children;
+	polstate->name_set.n_size = arg->role_db.num_objects;
+	polstate->inodev_set.i_size = arg->role_db.num_objects;
+
+	if (!polstate->subj_map_set.s_size || !polstate->acl_role_set.r_size ||
+	    !polstate->name_set.n_size || !polstate->inodev_set.i_size)
+		return 1;
+
+	if (!reload) {
+		if (!gr_init_uidset())
+			return 1;
+	}
+
+	/* set up the stack that holds allocation info */
+
+	stacksize = arg->role_db.num_pointers + 5;
+
+	if (!acl_alloc_stack_init(stacksize))
+		return 1;
+
+	if (!reload) {
+		/* grab reference for the real root dentry and vfsmount */
+		get_fs_root(reaper->fs, &gr_real_root);
+	
+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
+	printk(KERN_ALERT "Obtained real root device=%d, inode=%lu\n", gr_get_dev_from_dentry(gr_real_root.dentry), gr_get_ino_from_dentry(gr_real_root.dentry));
+#endif
+
+		fakefs_obj_rw = kzalloc(sizeof(struct acl_object_label), GFP_KERNEL);
+		if (fakefs_obj_rw == NULL)
+			return 1;
+		fakefs_obj_rw->mode = GR_FIND | GR_READ | GR_WRITE;
+	
+		fakefs_obj_rwx = kzalloc(sizeof(struct acl_object_label), GFP_KERNEL);
+		if (fakefs_obj_rwx == NULL)
+			return 1;
+		fakefs_obj_rwx->mode = GR_FIND | GR_READ | GR_WRITE | GR_EXEC;
+	}
+
+	polstate->subj_map_set.s_hash =
+	    (struct subject_map **) create_table(&polstate->subj_map_set.s_size, sizeof(void *));
+	polstate->acl_role_set.r_hash =
+	    (struct acl_role_label **) create_table(&polstate->acl_role_set.r_size, sizeof(void *));
+	polstate->name_set.n_hash = (struct name_entry **) create_table(&polstate->name_set.n_size, sizeof(void *));
+	polstate->inodev_set.i_hash =
+	    (struct inodev_entry **) create_table(&polstate->inodev_set.i_size, sizeof(void *));
+
+	if (!polstate->subj_map_set.s_hash || !polstate->acl_role_set.r_hash ||
+	    !polstate->name_set.n_hash || !polstate->inodev_set.i_hash)
+		return 1;
+
+	memset(polstate->subj_map_set.s_hash, 0,
+	       sizeof(struct subject_map *) * polstate->subj_map_set.s_size);
+	memset(polstate->acl_role_set.r_hash, 0,
+	       sizeof (struct acl_role_label *) * polstate->acl_role_set.r_size);
+	memset(polstate->name_set.n_hash, 0,
+	       sizeof (struct name_entry *) * polstate->name_set.n_size);
+	memset(polstate->inodev_set.i_hash, 0,
+	       sizeof (struct inodev_entry *) * polstate->inodev_set.i_size);
+
+	return 0;
+}
+
+/* free information not needed after startup
+   currently contains user->kernel pointer mappings for subjects
+*/
+
+static void
+free_init_variables(void)
+{
+	__u32 i;
+
+	if (polstate->subj_map_set.s_hash) {
+		for (i = 0; i < polstate->subj_map_set.s_size; i++) {
+			if (polstate->subj_map_set.s_hash[i]) {
+				kfree(polstate->subj_map_set.s_hash[i]);
+				polstate->subj_map_set.s_hash[i] = NULL;
+			}
+		}
+
+		if ((polstate->subj_map_set.s_size * sizeof (struct subject_map *)) <=
+		    PAGE_SIZE)
+			kfree(polstate->subj_map_set.s_hash);
+		else
+			vfree(polstate->subj_map_set.s_hash);
+	}
+
+	return;
+}
+
+static void
+free_variables(bool reload)
+{
+	struct acl_subject_label *s;
+	struct acl_role_label *r;
+	struct task_struct *task, *task2;
+	unsigned int x;
+
+	if (!reload) {
+		gr_clear_learn_entries();
+
+		read_lock(&tasklist_lock);
+		do_each_thread(task2, task) {
+			task->acl_sp_role = 0;
+			task->acl_role_id = 0;
+			task->inherited = 0;
+			task->acl = NULL;
+			task->role = NULL;
+		} while_each_thread(task2, task);
+		read_unlock(&tasklist_lock);
+
+		kfree(fakefs_obj_rw);
+		fakefs_obj_rw = NULL;
+		kfree(fakefs_obj_rwx);
+		fakefs_obj_rwx = NULL;
+
+		/* release the reference to the real root dentry and vfsmount */
+		path_put(&gr_real_root);
+		memset(&gr_real_root, 0, sizeof(gr_real_root));
+	}
+
+	/* free all object hash tables */
+
+	FOR_EACH_ROLE_START(r)
+		if (r->subj_hash == NULL)
+			goto next_role;
+		FOR_EACH_SUBJECT_START(r, s, x)
+			if (s->obj_hash == NULL)
+				break;
+			if ((s->obj_hash_size * sizeof (struct acl_object_label *)) <= PAGE_SIZE)
+				kfree(s->obj_hash);
+			else
+				vfree(s->obj_hash);
+		FOR_EACH_SUBJECT_END(s, x)
+		FOR_EACH_NESTED_SUBJECT_START(r, s)
+			if (s->obj_hash == NULL)
+				break;
+			if ((s->obj_hash_size * sizeof (struct acl_object_label *)) <= PAGE_SIZE)
+				kfree(s->obj_hash);
+			else
+				vfree(s->obj_hash);
+		FOR_EACH_NESTED_SUBJECT_END(s)
+		if ((r->subj_hash_size * sizeof (struct acl_subject_label *)) <= PAGE_SIZE)
+			kfree(r->subj_hash);
+		else
+			vfree(r->subj_hash);
+		r->subj_hash = NULL;
+next_role:
+	FOR_EACH_ROLE_END(r)
+
+	acl_free_all();
+
+	if (polstate->acl_role_set.r_hash) {
+		if ((polstate->acl_role_set.r_size * sizeof (struct acl_role_label *)) <=
+		    PAGE_SIZE)
+			kfree(polstate->acl_role_set.r_hash);
+		else
+			vfree(polstate->acl_role_set.r_hash);
+	}
+	if (polstate->name_set.n_hash) {
+		if ((polstate->name_set.n_size * sizeof (struct name_entry *)) <=
+		    PAGE_SIZE)
+			kfree(polstate->name_set.n_hash);
+		else
+			vfree(polstate->name_set.n_hash);
+	}
+
+	if (polstate->inodev_set.i_hash) {
+		if ((polstate->inodev_set.i_size * sizeof (struct inodev_entry *)) <=
+		    PAGE_SIZE)
+			kfree(polstate->inodev_set.i_hash);
+		else
+			vfree(polstate->inodev_set.i_hash);
+	}
+
+	if (!reload)
+		gr_free_uidset();
+
+	memset(&polstate->name_set, 0, sizeof (struct name_db));
+	memset(&polstate->inodev_set, 0, sizeof (struct inodev_db));
+	memset(&polstate->acl_role_set, 0, sizeof (struct acl_role_db));
+	memset(&polstate->subj_map_set, 0, sizeof (struct acl_subj_map_db));
+
+	polstate->default_role = NULL;
+	polstate->kernel_role = NULL;
+	polstate->role_list = NULL;
+
+	return;
+}
+
+static struct acl_subject_label *
+do_copy_user_subj(struct acl_subject_label *userp, struct acl_role_label *role, int *already_copied);
+
+static int alloc_and_copy_string(char **name, unsigned int maxlen)
+{
+	unsigned int len = strnlen_user(*name, maxlen);
+	char *tmp;
+
+	if (!len || len >= maxlen)
+		return -EINVAL;
+
+	if ((tmp = (char *) acl_alloc(len)) == NULL)
+		return -ENOMEM;
+
+	if (copy_from_user(tmp, *name, len))
+		return -EFAULT;
+
+	tmp[len-1] = '\0';
+	*name = tmp;
+
+	return 0;
+}
+
+static int
+copy_user_glob(struct acl_object_label *obj)
+{
+	struct acl_object_label *g_tmp, **guser;
+	int error;
+
+	if (obj->globbed == NULL)
+		return 0;
+
+	guser = &obj->globbed;
+	while (*guser) {
+		g_tmp = (struct acl_object_label *)
+			acl_alloc(sizeof (struct acl_object_label));
+		if (g_tmp == NULL)
+			return -ENOMEM;
+
+		if (copy_acl_object_label(g_tmp, *guser))
+			return -EFAULT;
+
+		error = alloc_and_copy_string(&g_tmp->filename, PATH_MAX);
+		if (error)
+			return error;
+
+		*guser = g_tmp;
+		guser = &(g_tmp->next);
+	}
+
+	return 0;
+}
+
+static int
+copy_user_objs(struct acl_object_label *userp, struct acl_subject_label *subj,
+	       struct acl_role_label *role)
+{
+	struct acl_object_label *o_tmp;
+	int ret;
+
+	while (userp) {
+		if ((o_tmp = (struct acl_object_label *)
+		     acl_alloc(sizeof (struct acl_object_label))) == NULL)
+			return -ENOMEM;
+
+		if (copy_acl_object_label(o_tmp, userp))
+			return -EFAULT;
+
+		userp = o_tmp->prev;
+
+		ret = alloc_and_copy_string(&o_tmp->filename, PATH_MAX);
+		if (ret)
+			return ret;
+
+		insert_acl_obj_label(o_tmp, subj);
+		if (!insert_name_entry(o_tmp->filename, o_tmp->inode,
+				       o_tmp->device, (o_tmp->mode & GR_DELETED) ? 1 : 0))
+			return -ENOMEM;
+
+		ret = copy_user_glob(o_tmp);
+		if (ret)
+			return ret;
+
+		if (o_tmp->nested) {
+			int already_copied;
+
+			o_tmp->nested = do_copy_user_subj(o_tmp->nested, role, &already_copied);
+			if (IS_ERR(o_tmp->nested))
+				return PTR_ERR(o_tmp->nested);
+
+			/* insert into nested subject list if we haven't copied this one yet
+			   to prevent duplicate entries */
+			if (!already_copied) {
+				o_tmp->nested->next = role->hash->first;
+				role->hash->first = o_tmp->nested;
+			}
+		}
+	}
+
+	return 0;
+}
+
+static __u32
+count_user_subjs(struct acl_subject_label *userp)
+{
+	struct acl_subject_label s_tmp;
+	__u32 num = 0;
+
+	while (userp) {
+		if (copy_acl_subject_label(&s_tmp, userp))
+			break;
+
+		userp = s_tmp.prev;
+	}
+
+	return num;
+}
+
+static int
+copy_user_allowedips(struct acl_role_label *rolep)
+{
+	struct role_allowed_ip *ruserip, *rtmp = NULL, *rlast;
+
+	ruserip = rolep->allowed_ips;
+
+	while (ruserip) {
+		rlast = rtmp;
+
+		if ((rtmp = (struct role_allowed_ip *)
+		     acl_alloc(sizeof (struct role_allowed_ip))) == NULL)
+			return -ENOMEM;
+
+		if (copy_role_allowed_ip(rtmp, ruserip))
+			return -EFAULT;
+
+		ruserip = rtmp->prev;
+
+		if (!rlast) {
+			rtmp->prev = NULL;
+			rolep->allowed_ips = rtmp;
+		} else {
+			rlast->next = rtmp;
+			rtmp->prev = rlast;
+		}
+
+		if (!ruserip)
+			rtmp->next = NULL;
+	}
+
+	return 0;
+}
+
+static int
+copy_user_transitions(struct acl_role_label *rolep)
+{
+	struct role_transition *rusertp, *rtmp = NULL, *rlast;
+	int error;
+
+	rusertp = rolep->transitions;
+
+	while (rusertp) {
+		rlast = rtmp;
+
+		if ((rtmp = (struct role_transition *)
+		     acl_alloc(sizeof (struct role_transition))) == NULL)
+			return -ENOMEM;
+
+		if (copy_role_transition(rtmp, rusertp))
+			return -EFAULT;
+
+		rusertp = rtmp->prev;
+
+		error = alloc_and_copy_string(&rtmp->rolename, GR_SPROLE_LEN);
+		if (error)
+			return error;
+
+		if (!rlast) {
+			rtmp->prev = NULL;
+			rolep->transitions = rtmp;
+		} else {
+			rlast->next = rtmp;
+			rtmp->prev = rlast;
+		}
+
+		if (!rusertp)
+			rtmp->next = NULL;
+	}
+
+	return 0;
+}
+
+static __u32 count_user_objs(const struct acl_object_label __user *userp)
+{
+	struct acl_object_label o_tmp;
+	__u32 num = 0;
+
+	while (userp) {
+		if (copy_acl_object_label(&o_tmp, userp))
+			break;
+
+		userp = o_tmp.prev;
+		num++;
+	}
+
+	return num;
+}
+
+static struct acl_subject_label *
+do_copy_user_subj(struct acl_subject_label *userp, struct acl_role_label *role, int *already_copied)
+{
+	struct acl_subject_label *s_tmp = NULL, *s_tmp2;
+	__u32 num_objs;
+	struct acl_ip_label **i_tmp, *i_utmp2;
+	struct gr_hash_struct ghash;
+	struct subject_map *subjmap;
+	unsigned int i_num;
+	int err;
+
+	if (already_copied != NULL)
+		*already_copied = 0;
+
+	s_tmp = lookup_subject_map(userp);
+
+	/* we've already copied this subject into the kernel, just return
+	   the reference to it, and don't copy it over again
+	*/
+	if (s_tmp) {
+		if (already_copied != NULL)
+			*already_copied = 1;
+		return(s_tmp);
+	}
+
+	if ((s_tmp = (struct acl_subject_label *)
+	    acl_alloc(sizeof (struct acl_subject_label))) == NULL)
+		return ERR_PTR(-ENOMEM);
+
+	subjmap = (struct subject_map *)kmalloc(sizeof (struct subject_map), GFP_KERNEL);
+	if (subjmap == NULL)
+		return ERR_PTR(-ENOMEM);
+
+	subjmap->user = userp;
+	subjmap->kernel = s_tmp;
+	insert_subj_map_entry(subjmap);
+
+	if (copy_acl_subject_label(s_tmp, userp))
+		return ERR_PTR(-EFAULT);
+
+	err = alloc_and_copy_string(&s_tmp->filename, PATH_MAX);
+	if (err)
+		return ERR_PTR(err);
+
+	if (!strcmp(s_tmp->filename, "/"))
+		role->root_label = s_tmp;
+
+	if (copy_gr_hash_struct(&ghash, s_tmp->hash))
+		return ERR_PTR(-EFAULT);
+
+	/* copy user and group transition tables */
+
+	if (s_tmp->user_trans_num) {
+		uid_t *uidlist;
+
+		uidlist = (uid_t *)acl_alloc_num(s_tmp->user_trans_num, sizeof(uid_t));
+		if (uidlist == NULL)
+			return ERR_PTR(-ENOMEM);
+		if (copy_from_user(uidlist, s_tmp->user_transitions, s_tmp->user_trans_num * sizeof(uid_t)))
+			return ERR_PTR(-EFAULT);
+
+		s_tmp->user_transitions = uidlist;
+	}
+
+	if (s_tmp->group_trans_num) {
+		gid_t *gidlist;
+
+		gidlist = (gid_t *)acl_alloc_num(s_tmp->group_trans_num, sizeof(gid_t));
+		if (gidlist == NULL)
+			return ERR_PTR(-ENOMEM);
+		if (copy_from_user(gidlist, s_tmp->group_transitions, s_tmp->group_trans_num * sizeof(gid_t)))
+			return ERR_PTR(-EFAULT);
+
+		s_tmp->group_transitions = gidlist;
+	}
+
+	/* set up object hash table */
+	num_objs = count_user_objs(ghash.first);
+
+	s_tmp->obj_hash_size = num_objs;
+	s_tmp->obj_hash =
+	    (struct acl_object_label **)
+	    create_table(&(s_tmp->obj_hash_size), sizeof(void *));
+
+	if (!s_tmp->obj_hash)
+		return ERR_PTR(-ENOMEM);
+
+	memset(s_tmp->obj_hash, 0,
+	       s_tmp->obj_hash_size *
+	       sizeof (struct acl_object_label *));
+
+	/* add in objects */
+	err = copy_user_objs(ghash.first, s_tmp, role);
+
+	if (err)
+		return ERR_PTR(err);
+
+	/* set pointer for parent subject */
+	if (s_tmp->parent_subject) {
+		s_tmp2 = do_copy_user_subj(s_tmp->parent_subject, role, NULL);
+
+		if (IS_ERR(s_tmp2))
+			return s_tmp2;
+
+		s_tmp->parent_subject = s_tmp2;
+	}
+
+	/* add in ip acls */
+
+	if (!s_tmp->ip_num) {
+		s_tmp->ips = NULL;
+		goto insert;
+	}
+
+	i_tmp =
+	    (struct acl_ip_label **) acl_alloc_num(s_tmp->ip_num,
+					       sizeof (struct acl_ip_label *));
+
+	if (!i_tmp)
+		return ERR_PTR(-ENOMEM);
+
+	for (i_num = 0; i_num < s_tmp->ip_num; i_num++) {
+		*(i_tmp + i_num) =
+		    (struct acl_ip_label *)
+		    acl_alloc(sizeof (struct acl_ip_label));
+		if (!*(i_tmp + i_num))
+			return ERR_PTR(-ENOMEM);
+
+		if (copy_pointer_from_array(&i_utmp2, i_num, s_tmp->ips))
+			return ERR_PTR(-EFAULT);
+
+		if (copy_acl_ip_label(*(i_tmp + i_num), i_utmp2))
+			return ERR_PTR(-EFAULT);
+		
+		if ((*(i_tmp + i_num))->iface == NULL)
+			continue;
+
+		err = alloc_and_copy_string(&(*(i_tmp + i_num))->iface, IFNAMSIZ);
+		if (err)
+			return ERR_PTR(err);
+	}
+
+	s_tmp->ips = i_tmp;
+
+insert:
+	if (!insert_name_entry(s_tmp->filename, s_tmp->inode,
+			       s_tmp->device, (s_tmp->mode & GR_DELETED) ? 1 : 0))
+		return ERR_PTR(-ENOMEM);
+
+	return s_tmp;
+}
+
+static int
+copy_user_subjs(struct acl_subject_label *userp, struct acl_role_label *role)
+{
+	struct acl_subject_label s_pre;
+	struct acl_subject_label * ret;
+	int err;
+
+	while (userp) {
+		if (copy_acl_subject_label(&s_pre, userp))
+			return -EFAULT;
+		
+		ret = do_copy_user_subj(userp, role, NULL);
+
+		err = PTR_ERR(ret);
+		if (IS_ERR(ret))
+			return err;
+
+		insert_acl_subj_label(ret, role);
+
+		userp = s_pre.prev;
+	}
+
+	return 0;
+}
+
+static int
+copy_user_acl(struct gr_arg *arg)
+{
+	struct acl_role_label *r_tmp = NULL, **r_utmp, *r_utmp2;
+	struct acl_subject_label *subj_list;
+	struct sprole_pw *sptmp;
+	struct gr_hash_struct *ghash;
+	uid_t *domainlist;
+	unsigned int r_num;
+	int err = 0;
+	__u16 i;
+	__u32 num_subjs;
+
+	/* we need a default and kernel role */
+	if (arg->role_db.num_roles < 2)
+		return -EINVAL;
+
+	/* copy special role authentication info from userspace */
+
+	polstate->num_sprole_pws = arg->num_sprole_pws;
+	polstate->acl_special_roles = (struct sprole_pw **) acl_alloc_num(polstate->num_sprole_pws, sizeof(struct sprole_pw *));
+
+	if (!polstate->acl_special_roles && polstate->num_sprole_pws)
+		return -ENOMEM;
+
+	for (i = 0; i < polstate->num_sprole_pws; i++) {
+		sptmp = (struct sprole_pw *) acl_alloc(sizeof(struct sprole_pw));
+		if (!sptmp)
+			return -ENOMEM;
+		if (copy_sprole_pw(sptmp, i, arg->sprole_pws))
+			return -EFAULT;
+
+		err = alloc_and_copy_string((char **)&sptmp->rolename, GR_SPROLE_LEN);
+		if (err)
+			return err;
+
+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
+		printk(KERN_ALERT "Copying special role %s\n", sptmp->rolename);
+#endif
+
+		polstate->acl_special_roles[i] = sptmp;
+	}
+
+	r_utmp = (struct acl_role_label **) arg->role_db.r_table;
+
+	for (r_num = 0; r_num < arg->role_db.num_roles; r_num++) {
+		r_tmp = acl_alloc(sizeof (struct acl_role_label));
+
+		if (!r_tmp)
+			return -ENOMEM;
+
+		if (copy_pointer_from_array(&r_utmp2, r_num, r_utmp))
+			return -EFAULT;
+
+		if (copy_acl_role_label(r_tmp, r_utmp2))
+			return -EFAULT;
+
+		err = alloc_and_copy_string(&r_tmp->rolename, GR_SPROLE_LEN);
+		if (err)
+			return err;
+
+		if (!strcmp(r_tmp->rolename, "default")
+		    && (r_tmp->roletype & GR_ROLE_DEFAULT)) {
+			polstate->default_role = r_tmp;
+		} else if (!strcmp(r_tmp->rolename, ":::kernel:::")) {
+			polstate->kernel_role = r_tmp;
+		}
+
+		if ((ghash = (struct gr_hash_struct *) acl_alloc(sizeof(struct gr_hash_struct))) == NULL)
+			return -ENOMEM;
+
+		if (copy_gr_hash_struct(ghash, r_tmp->hash))
+			return -EFAULT;
+
+		r_tmp->hash = ghash;
+
+		num_subjs = count_user_subjs(r_tmp->hash->first);
+
+		r_tmp->subj_hash_size = num_subjs;
+		r_tmp->subj_hash =
+		    (struct acl_subject_label **)
+		    create_table(&(r_tmp->subj_hash_size), sizeof(void *));
+
+		if (!r_tmp->subj_hash)
+			return -ENOMEM;
+
+		err = copy_user_allowedips(r_tmp);
+		if (err)
+			return err;
+
+		/* copy domain info */
+		if (r_tmp->domain_children != NULL) {
+			domainlist = acl_alloc_num(r_tmp->domain_child_num, sizeof(uid_t));
+			if (domainlist == NULL)
+				return -ENOMEM;
+
+			if (copy_from_user(domainlist, r_tmp->domain_children, r_tmp->domain_child_num * sizeof(uid_t)))
+				return -EFAULT;
+
+			r_tmp->domain_children = domainlist;
+		}
+
+		err = copy_user_transitions(r_tmp);
+		if (err)
+			return err;
+
+		memset(r_tmp->subj_hash, 0,
+		       r_tmp->subj_hash_size *
+		       sizeof (struct acl_subject_label *));
+
+		/* acquire the list of subjects, then NULL out
+		   the list prior to parsing the subjects for this role,
+		   as during this parsing the list is replaced with a list
+		   of *nested* subjects for the role
+		*/
+		subj_list = r_tmp->hash->first;
+
+		/* set nested subject list to null */
+		r_tmp->hash->first = NULL;
+
+		err = copy_user_subjs(subj_list, r_tmp);
+
+		if (err)
+			return err;
+
+		insert_acl_role_label(r_tmp);
+	}
+
+	if (polstate->default_role == NULL || polstate->kernel_role == NULL)
+		return -EINVAL;
+
+	return err;
+}
+
+static int gracl_reload_apply_policies(void *reload)
+{
+	struct gr_reload_state *reload_state = (struct gr_reload_state *)reload;
+	struct task_struct *task, *task2;
+	struct acl_role_label *role, *rtmp;
+	struct acl_subject_label *subj;
+	const struct cred *cred;
+	int role_applied;
+	int ret = 0;
+
+	memcpy(&reload_state->oldpolicy, reload_state->oldpolicy_ptr, sizeof(struct gr_policy_state));
+	memcpy(&reload_state->oldalloc, reload_state->oldalloc_ptr, sizeof(struct gr_alloc_state));
+
+	/* first make sure we'll be able to apply the new policy cleanly */
+	do_each_thread(task2, task) {
+		if (task->exec_file == NULL)
+			continue;
+		role_applied = 0;
+		if (!reload_state->oldmode && task->role->roletype & GR_ROLE_SPECIAL) {
+			/* preserve special roles */
+			FOR_EACH_ROLE_START(role)
+				if ((role->roletype & GR_ROLE_SPECIAL) && !strcmp(task->role->rolename, role->rolename)) {
+					rtmp = task->role;
+					task->role = role;
+					role_applied = 1;
+					break;
+				}
+			FOR_EACH_ROLE_END(role)
+		}
+		if (!role_applied) {
+			cred = __task_cred(task);
+			rtmp = task->role;
+			task->role = __lookup_acl_role_label(polstate, task, GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid));
+		}
+		/* this handles non-nested inherited subjects, nested subjects will still
+		   be dropped currently */
+		subj = __gr_get_subject_for_task(polstate, task, task->acl->filename, 1);
+		task->tmpacl = __gr_get_subject_for_task(polstate, task, NULL, 1);
+		/* change the role back so that we've made no modifications to the policy */
+		task->role = rtmp;
+
+		if (subj == NULL || task->tmpacl == NULL) {
+			ret = -EINVAL;
+			goto out;
+		}
+	} while_each_thread(task2, task);
+
+	/* now actually apply the policy */
+
+	do_each_thread(task2, task) {
+		if (task->exec_file) {
+			role_applied = 0;
+			if (!reload_state->oldmode && task->role->roletype & GR_ROLE_SPECIAL) {
+				/* preserve special roles */
+				FOR_EACH_ROLE_START(role)
+					if ((role->roletype & GR_ROLE_SPECIAL) && !strcmp(task->role->rolename, role->rolename)) {
+						task->role = role;
+						role_applied = 1;
+						break;
+					}
+				FOR_EACH_ROLE_END(role)
+			}
+			if (!role_applied) {
+				cred = __task_cred(task);
+				task->role = __lookup_acl_role_label(polstate, task, GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid));
+			}
+			/* this handles non-nested inherited subjects, nested subjects will still
+			   be dropped currently */
+			if (!reload_state->oldmode && task->inherited)
+				subj = __gr_get_subject_for_task(polstate, task, task->acl->filename, 1);
+			else {
+				/* looked up and tagged to the task previously */
+				subj = task->tmpacl;
+			}
+			/* subj will be non-null */
+			__gr_apply_subject_to_task(polstate, task, subj);
+			if (reload_state->oldmode) {
+				task->acl_role_id = 0;
+				task->acl_sp_role = 0;
+				task->inherited = 0;
+			}
+		} else {
+			// it's a kernel process
+			task->role = polstate->kernel_role;
+			task->acl = polstate->kernel_role->root_label;
+#ifdef CONFIG_GRKERNSEC_ACL_HIDEKERN
+			task->acl->mode &= ~GR_PROCFIND;
+#endif
+		}
+	} while_each_thread(task2, task);
+
+	memcpy(reload_state->oldpolicy_ptr, &reload_state->newpolicy, sizeof(struct gr_policy_state));
+	memcpy(reload_state->oldalloc_ptr, &reload_state->newalloc, sizeof(struct gr_alloc_state));
+
+out:
+
+	return ret;
+}
+
+static int gracl_reload(struct gr_arg *args, unsigned char oldmode)
+{
+	struct gr_reload_state new_reload_state = { };
+	int err;
+
+	new_reload_state.oldpolicy_ptr = polstate;
+	new_reload_state.oldalloc_ptr = current_alloc_state;
+	new_reload_state.oldmode = oldmode;
+
+	current_alloc_state = &new_reload_state.newalloc;
+	polstate = &new_reload_state.newpolicy;
+
+	/* everything relevant is now saved off, copy in the new policy */
+	if (init_variables(args, true)) {
+		gr_log_str(GR_DONT_AUDIT_GOOD, GR_INITF_ACL_MSG, GR_VERSION);
+		err = -ENOMEM;
+		goto error;
+	}
+
+	err = copy_user_acl(args);
+	free_init_variables();
+	if (err)
+		goto error;
+	/* the new policy is copied in, with the old policy available via saved_state
+	   first go through applying roles, making sure to preserve special roles
+	   then apply new subjects, making sure to preserve inherited and nested subjects,
+	   though currently only inherited subjects will be preserved
+	*/
+	err = stop_machine(gracl_reload_apply_policies, &new_reload_state, NULL);
+	if (err)
+		goto error;
+
+	/* we've now applied the new policy, so restore the old policy state to free it */
+	polstate = &new_reload_state.oldpolicy;
+	current_alloc_state = &new_reload_state.oldalloc;
+	free_variables(true);
+
+	/* oldpolicy/oldalloc_ptr point to the new policy/alloc states as they were copied
+	   to running_polstate/current_alloc_state inside stop_machine
+	*/
+	err = 0;
+	goto out;
+error:
+	/* on error of loading the new policy, we'll just keep the previous
+	   policy set around
+	*/
+	free_variables(true);
+
+	/* doesn't affect runtime, but maintains consistent state */
+out:
+	polstate = new_reload_state.oldpolicy_ptr;
+	current_alloc_state = new_reload_state.oldalloc_ptr;
+
+	return err;
+}
+
+static int
+gracl_init(struct gr_arg *args)
+{
+	int error = 0;
+
+	memcpy(gr_system_salt, args->salt, GR_SALT_LEN);
+	memcpy(gr_system_sum, args->sum, GR_SHA_LEN);
+
+	if (init_variables(args, false)) {
+		gr_log_str(GR_DONT_AUDIT_GOOD, GR_INITF_ACL_MSG, GR_VERSION);
+		error = -ENOMEM;
+		goto out;
+	}
+
+	error = copy_user_acl(args);
+	free_init_variables();
+	if (error)
+		goto out;
+
+	error = gr_set_acls(0);
+	if (error)
+		goto out;
+
+	gr_enable_rbac_system();
+
+	return 0;
+
+out:
+	free_variables(false);
+	return error;
+}
+
+static int
+lookup_special_role_auth(__u16 mode, const char *rolename, unsigned char **salt,
+			 unsigned char **sum)
+{
+	struct acl_role_label *r;
+	struct role_allowed_ip *ipp;
+	struct role_transition *trans;
+	unsigned int i;
+	int found = 0;
+	u32 curr_ip = current->signal->curr_ip;
+
+	current->signal->saved_ip = curr_ip;
+
+	/* check transition table */
+
+	for (trans = current->role->transitions; trans; trans = trans->next) {
+		if (!strcmp(rolename, trans->rolename)) {
+			found = 1;
+			break;
+		}
+	}
+
+	if (!found)
+		return 0;
+
+	/* handle special roles that do not require authentication
+	   and check ip */
+
+	FOR_EACH_ROLE_START(r)
+		if (!strcmp(rolename, r->rolename) &&
+		    (r->roletype & GR_ROLE_SPECIAL)) {
+			found = 0;
+			if (r->allowed_ips != NULL) {
+				for (ipp = r->allowed_ips; ipp; ipp = ipp->next) {
+					if ((ntohl(curr_ip) & ipp->netmask) ==
+					     (ntohl(ipp->addr) & ipp->netmask))
+						found = 1;
+				}
+			} else
+				found = 2;
+			if (!found)
+				return 0;
+
+			if (((mode == GR_SPROLE) && (r->roletype & GR_ROLE_NOPW)) ||
+			    ((mode == GR_SPROLEPAM) && (r->roletype & GR_ROLE_PAM))) {
+				*salt = NULL;
+				*sum = NULL;
+				return 1;
+			}
+		}
+	FOR_EACH_ROLE_END(r)
+
+	for (i = 0; i < polstate->num_sprole_pws; i++) {
+		if (!strcmp(rolename, (const char *)polstate->acl_special_roles[i]->rolename)) {
+			*salt = polstate->acl_special_roles[i]->salt;
+			*sum = polstate->acl_special_roles[i]->sum;
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
+int gr_check_secure_terminal(struct task_struct *task)
+{
+	struct task_struct *p, *p2, *p3;
+	struct files_struct *files;
+	struct fdtable *fdt;
+	struct file *our_file = NULL, *file;
+	struct inode *our_inode = NULL;
+	int i;
+
+	if (task->signal->tty == NULL)
+		return 1;
+
+	files = get_files_struct(task);
+	if (files != NULL) {
+		rcu_read_lock();
+		fdt = files_fdtable(files);
+		for (i=0; i < fdt->max_fds; i++) {
+			file = fcheck_files(files, i);
+			if (file && (our_file == NULL) && (file->private_data == task->signal->tty)) {
+				get_file(file);
+				our_file = file;
+			}
+		}
+		rcu_read_unlock();
+		put_files_struct(files);
+	}
+
+	if (our_file == NULL)
+		return 1;
+
+	our_inode = d_backing_inode(our_file->f_path.dentry);
+
+	read_lock(&tasklist_lock);
+	do_each_thread(p2, p) {
+		files = get_files_struct(p);
+		if (files == NULL ||
+		    (p->signal && p->signal->tty == task->signal->tty)) {
+			if (files != NULL)
+				put_files_struct(files);
+			continue;
+		}
+		rcu_read_lock();
+		fdt = files_fdtable(files);
+		for (i=0; i < fdt->max_fds; i++) {
+			struct inode *inode = NULL;
+			file = fcheck_files(files, i);
+			if (file)
+				inode = d_backing_inode(file->f_path.dentry);
+			if (inode && S_ISCHR(inode->i_mode) && inode->i_rdev == our_inode->i_rdev) {
+				p3 = task;
+				while (task_pid_nr(p3) > 0) {
+					if (p3 == p)
+						break;
+					p3 = p3->real_parent;
+				}
+				if (p3 == p)
+					break;
+				gr_log_ttysniff(GR_DONT_AUDIT_GOOD, GR_TTYSNIFF_ACL_MSG, p);
+				gr_handle_alertkill(p);
+				rcu_read_unlock();
+				put_files_struct(files);
+				read_unlock(&tasklist_lock);
+				fput(our_file);
+				return 0;
+			}
+		}
+		rcu_read_unlock();
+		put_files_struct(files);
+	} while_each_thread(p2, p);
+	read_unlock(&tasklist_lock);
+
+	fput(our_file);
+	return 1;
+}
+
+ssize_t
+write_grsec_handler(struct file *file, const char __user * buf, size_t count, loff_t *ppos)
+{
+	struct gr_arg_wrapper uwrap;
+	unsigned char *sprole_salt = NULL;
+	unsigned char *sprole_sum = NULL;
+	int error = 0;
+	int error2 = 0;
+	size_t req_count = 0;
+	unsigned char oldmode = 0;
+
+	mutex_lock(&gr_dev_mutex);
+
+	if (gr_acl_is_enabled() && !(current->acl->mode & GR_KERNELAUTH)) {
+		error = -EPERM;
+		goto out;
+	}
+
+#ifdef CONFIG_COMPAT
+	pax_open_kernel();
+	if (in_compat_syscall()) {
+		copy_gr_arg_wrapper = &copy_gr_arg_wrapper_compat;
+		copy_gr_arg = &copy_gr_arg_compat;
+		copy_acl_object_label = &copy_acl_object_label_compat;
+		copy_acl_subject_label = &copy_acl_subject_label_compat;
+		copy_acl_role_label = &copy_acl_role_label_compat;
+		copy_acl_ip_label = &copy_acl_ip_label_compat;
+		copy_role_allowed_ip = &copy_role_allowed_ip_compat;
+		copy_role_transition = &copy_role_transition_compat;
+		copy_sprole_pw = &copy_sprole_pw_compat;
+		copy_gr_hash_struct = &copy_gr_hash_struct_compat;
+		copy_pointer_from_array = &copy_pointer_from_array_compat;
+		get_gr_arg_wrapper_size = &get_gr_arg_wrapper_size_compat;
+	} else {
+		copy_gr_arg_wrapper = &copy_gr_arg_wrapper_normal;
+		copy_gr_arg = &copy_gr_arg_normal;
+		copy_acl_object_label = &copy_acl_object_label_normal;
+		copy_acl_subject_label = &copy_acl_subject_label_normal;
+		copy_acl_role_label = &copy_acl_role_label_normal;
+		copy_acl_ip_label = &copy_acl_ip_label_normal;
+		copy_role_allowed_ip = &copy_role_allowed_ip_normal;
+		copy_role_transition = &copy_role_transition_normal;
+		copy_sprole_pw = &copy_sprole_pw_normal;
+		copy_gr_hash_struct = &copy_gr_hash_struct_normal;
+		copy_pointer_from_array = &copy_pointer_from_array_normal;
+		get_gr_arg_wrapper_size = &get_gr_arg_wrapper_size_normal;
+	}
+	pax_close_kernel();
+#endif
+
+	req_count = get_gr_arg_wrapper_size();
+
+	if (count != req_count) {
+		gr_log_int_int(GR_DONT_AUDIT_GOOD, GR_DEV_ACL_MSG, (int)count, (int)req_count);
+		error = -EINVAL;
+		goto out;
+	}
+
+	
+	if (gr_auth_expires && time_after_eq(get_seconds(), gr_auth_expires)) {
+		gr_auth_expires = 0;
+		gr_auth_attempts = 0;
+	}
+
+	error = copy_gr_arg_wrapper(buf, &uwrap);
+	if (error)
+		goto out;
+
+	error = copy_gr_arg(uwrap.arg, gr_usermode);
+	if (error)
+		goto out;
+
+	if (gr_usermode->mode != GR_SPROLE && gr_usermode->mode != GR_SPROLEPAM &&
+	    gr_auth_attempts >= CONFIG_GRKERNSEC_ACL_MAXTRIES &&
+	    time_after(gr_auth_expires, get_seconds())) {
+		error = -EBUSY;
+		goto out;
+	}
+
+	/* if non-root trying to do anything other than use a special role,
+	   do not attempt authentication, do not count towards authentication
+	   locking
+	 */
+
+	if (gr_usermode->mode != GR_SPROLE && gr_usermode->mode != GR_STATUS &&
+	    gr_usermode->mode != GR_UNSPROLE && gr_usermode->mode != GR_SPROLEPAM &&
+	    gr_is_global_nonroot(current_uid())) {
+		error = -EPERM;
+		goto out;
+	}
+
+	/* ensure pw and special role name are null terminated */
+
+	gr_usermode->pw[GR_PW_LEN - 1] = '\0';
+	gr_usermode->sp_role[GR_SPROLE_LEN - 1] = '\0';
+
+	/* Okay. 
+	 * We have our enough of the argument structure..(we have yet
+	 * to copy_from_user the tables themselves) . Copy the tables
+	 * only if we need them, i.e. for loading operations. */
+
+	switch (gr_usermode->mode) {
+	case GR_STATUS:
+			if (gr_acl_is_enabled()) {
+				error = 1;
+				if (!gr_check_secure_terminal(current))
+					error = 3;
+			} else
+				error = 2;
+			goto out;
+	case GR_SHUTDOWN:
+		if (gr_acl_is_enabled() && !(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) {
+			stop_machine(gr_rbac_disable, NULL, NULL);
+			free_variables(false);
+			memset(gr_usermode, 0, sizeof(struct gr_arg));
+			memset(gr_system_salt, 0, GR_SALT_LEN);
+			memset(gr_system_sum, 0, GR_SHA_LEN);
+			gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SHUTS_ACL_MSG);
+		} else if (gr_acl_is_enabled()) {
+			gr_log_noargs(GR_DONT_AUDIT, GR_SHUTF_ACL_MSG);
+			error = -EPERM;
+		} else {
+			gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SHUTI_ACL_MSG);
+			error = -EAGAIN;
+		}
+		break;
+	case GR_ENABLE:
+		if (!gr_acl_is_enabled() && !(error2 = gracl_init(gr_usermode)))
+			gr_log_str(GR_DONT_AUDIT_GOOD, GR_ENABLE_ACL_MSG, GR_VERSION);
+		else {
+			if (gr_acl_is_enabled())
+				error = -EAGAIN;
+			else
+				error = error2;
+			gr_log_str(GR_DONT_AUDIT, GR_ENABLEF_ACL_MSG, GR_VERSION);
+		}
+		break;
+	case GR_OLDRELOAD:
+		oldmode = 1;
+	case GR_RELOAD:
+		if (!gr_acl_is_enabled()) {
+			gr_log_str(GR_DONT_AUDIT_GOOD, GR_RELOADI_ACL_MSG, GR_VERSION);
+			error = -EAGAIN;
+		} else if (!(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) {
+			error2 = gracl_reload(gr_usermode, oldmode);
+			if (!error2)
+				gr_log_str(GR_DONT_AUDIT_GOOD, GR_RELOAD_ACL_MSG, GR_VERSION);
+			else {
+				gr_log_str(GR_DONT_AUDIT, GR_RELOADF_ACL_MSG, GR_VERSION);
+				error = error2;
+			}
+		} else {
+			gr_log_str(GR_DONT_AUDIT, GR_RELOADF_ACL_MSG, GR_VERSION);
+			error = -EPERM;
+		}
+		break;
+	case GR_SEGVMOD:
+		if (unlikely(!gr_acl_is_enabled())) {
+			gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SEGVMODI_ACL_MSG);
+			error = -EAGAIN;
+			break;
+		}
+
+		if (!(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) {
+			gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SEGVMODS_ACL_MSG);
+			if (gr_usermode->segv_device && gr_usermode->segv_inode) {
+				struct acl_subject_label *segvacl;
+				segvacl =
+				    lookup_acl_subj_label(gr_usermode->segv_inode,
+							  gr_usermode->segv_device,
+							  current->role);
+				if (segvacl) {
+					segvacl->crashes = 0;
+					segvacl->expires = 0;
+				}
+			} else
+				gr_find_and_remove_uid(gr_usermode->segv_uid);
+		} else {
+			gr_log_noargs(GR_DONT_AUDIT, GR_SEGVMODF_ACL_MSG);
+			error = -EPERM;
+		}
+		break;
+	case GR_SPROLE:
+	case GR_SPROLEPAM:
+		if (unlikely(!gr_acl_is_enabled())) {
+			gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SPROLEI_ACL_MSG);
+			error = -EAGAIN;
+			break;
+		}
+
+		if (current->role->expires && time_after_eq(get_seconds(), current->role->expires)) {
+			current->role->expires = 0;
+			current->role->auth_attempts = 0;
+		}
+
+		if (current->role->auth_attempts >= CONFIG_GRKERNSEC_ACL_MAXTRIES &&
+		    time_after(current->role->expires, get_seconds())) {
+			error = -EBUSY;
+			goto out;
+		}
+
+		if (lookup_special_role_auth
+		    (gr_usermode->mode, (const char *)gr_usermode->sp_role, &sprole_salt, &sprole_sum)
+		    && ((!sprole_salt && !sprole_sum)
+			|| !(chkpw(gr_usermode, sprole_salt, sprole_sum)))) {
+			char *p = "";
+			assign_special_role((const char *)gr_usermode->sp_role);
+			read_lock(&tasklist_lock);
+			if (current->real_parent)
+				p = current->real_parent->role->rolename;
+			read_unlock(&tasklist_lock);
+			gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_SPROLES_ACL_MSG,
+					p, acl_sp_role_value);
+		} else {
+			gr_log_str(GR_DONT_AUDIT, GR_SPROLEF_ACL_MSG, gr_usermode->sp_role);
+			error = -EPERM;
+			if(!(current->role->auth_attempts++))
+				current->role->expires = get_seconds() + CONFIG_GRKERNSEC_ACL_TIMEOUT;
+
+			goto out;
+		}
+		break;
+	case GR_UNSPROLE:
+		if (unlikely(!gr_acl_is_enabled())) {
+			gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_UNSPROLEI_ACL_MSG);
+			error = -EAGAIN;
+			break;
+		}
+
+		if (current->role->roletype & GR_ROLE_SPECIAL) {
+			char *p = "";
+			int i = 0;
+
+			read_lock(&tasklist_lock);
+			if (current->real_parent) {
+				p = current->real_parent->role->rolename;
+				i = current->real_parent->acl_role_id;
+			}
+			read_unlock(&tasklist_lock);
+
+			gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_UNSPROLES_ACL_MSG, p, i);
+			gr_set_acls(1);
+		} else {
+			error = -EPERM;
+			goto out;
+		}
+		break;
+	default:
+		gr_log_int(GR_DONT_AUDIT, GR_INVMODE_ACL_MSG, gr_usermode->mode);
+		error = -EINVAL;
+		break;
+	}
+
+	if (error != -EPERM)
+		goto out;
+
+	if(!(gr_auth_attempts++))
+		gr_auth_expires = get_seconds() + CONFIG_GRKERNSEC_ACL_TIMEOUT;
+
+      out:
+	mutex_unlock(&gr_dev_mutex);
+
+	if (!error)
+		error = req_count;
+
+	return error;
+}
+
+int
+gr_set_acls(const int type)
+{
+	struct task_struct *task, *task2;
+	struct acl_role_label *role = current->role;
+	struct acl_subject_label *subj;
+	__u16 acl_role_id = current->acl_role_id;
+	const struct cred *cred;
+	int ret;
+
+	rcu_read_lock();
+	read_lock(&tasklist_lock);
+	read_lock(&grsec_exec_file_lock);
+	do_each_thread(task2, task) {
+		/* check to see if we're called from the exit handler,
+		   if so, only replace ACLs that have inherited the admin
+		   ACL */
+
+		if (type && (task->role != role ||
+			     task->acl_role_id != acl_role_id))
+			continue;
+
+		task->acl_role_id = 0;
+		task->acl_sp_role = 0;
+		task->inherited = 0;
+
+		if (task->exec_file) {
+			cred = __task_cred(task);
+			task->role = __lookup_acl_role_label(polstate, task, GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid));
+			subj = __gr_get_subject_for_task(polstate, task, NULL, 1);
+			if (subj == NULL) {
+				ret = -EINVAL;
+				read_unlock(&grsec_exec_file_lock);
+				read_unlock(&tasklist_lock);
+				rcu_read_unlock();
+				gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_DEFACL_MSG, task->comm, task_pid_nr(task));
+				return ret;
+			}
+			__gr_apply_subject_to_task(polstate, task, subj);
+		} else {
+			// it's a kernel process
+			task->role = polstate->kernel_role;
+			task->acl = polstate->kernel_role->root_label;
+#ifdef CONFIG_GRKERNSEC_ACL_HIDEKERN
+			task->acl->mode &= ~GR_PROCFIND;
+#endif
+		}
+	} while_each_thread(task2, task);
+	read_unlock(&grsec_exec_file_lock);
+	read_unlock(&tasklist_lock);
+	rcu_read_unlock();
+
+	return 0;
+}
diff --git a/grsecurity/gracl_res.c b/grsecurity/gracl_res.c
new file mode 100644
index 0000000..39645c9
--- /dev/null
+++ b/grsecurity/gracl_res.c
@@ -0,0 +1,68 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/gracl.h>
+#include <linux/grinternal.h>
+
+static const char *restab_log[] = {
+	[RLIMIT_CPU] = "RLIMIT_CPU",
+	[RLIMIT_FSIZE] = "RLIMIT_FSIZE",
+	[RLIMIT_DATA] = "RLIMIT_DATA",
+	[RLIMIT_STACK] = "RLIMIT_STACK",
+	[RLIMIT_CORE] = "RLIMIT_CORE",
+	[RLIMIT_RSS] = "RLIMIT_RSS",
+	[RLIMIT_NPROC] = "RLIMIT_NPROC",
+	[RLIMIT_NOFILE] = "RLIMIT_NOFILE",
+	[RLIMIT_MEMLOCK] = "RLIMIT_MEMLOCK",
+	[RLIMIT_AS] = "RLIMIT_AS",
+	[RLIMIT_LOCKS] = "RLIMIT_LOCKS",
+	[RLIMIT_SIGPENDING] = "RLIMIT_SIGPENDING",
+	[RLIMIT_MSGQUEUE] = "RLIMIT_MSGQUEUE",
+	[RLIMIT_NICE] = "RLIMIT_NICE",
+	[RLIMIT_RTPRIO] = "RLIMIT_RTPRIO",
+	[RLIMIT_RTTIME] = "RLIMIT_RTTIME",
+	[GR_CRASH_RES] = "RLIMIT_CRASH"
+};
+
+void
+gr_log_resource(const struct task_struct *task,
+		const int res, const unsigned long wanted, const int gt)
+{
+	const struct cred *cred;
+	unsigned long rlim;
+
+	if (!gr_acl_is_enabled() && !grsec_resource_logging)
+		return;
+
+	// not yet supported resource
+	if (unlikely(!restab_log[res]))
+		return;
+
+	if (res == RLIMIT_CPU || res == RLIMIT_RTTIME)
+		rlim = task_rlimit_max(task, res);
+	else
+		rlim = task_rlimit(task, res);
+
+	if (likely((rlim == RLIM_INFINITY) || (gt && wanted <= rlim) || (!gt && wanted < rlim)))
+		return;
+
+	rcu_read_lock();
+	cred = __task_cred(task);
+
+	if (res == RLIMIT_NPROC && 
+	    (cap_raised(cred->cap_effective, CAP_SYS_ADMIN) || 
+	     cap_raised(cred->cap_effective, CAP_SYS_RESOURCE)))
+		goto out_rcu_unlock;
+	else if (res == RLIMIT_MEMLOCK &&
+		 cap_raised(cred->cap_effective, CAP_IPC_LOCK))
+		goto out_rcu_unlock;
+	else if (res == RLIMIT_NICE && cap_raised(cred->cap_effective, CAP_SYS_NICE))
+		goto out_rcu_unlock;
+	rcu_read_unlock();
+
+	gr_log_res_ulong2_str(GR_DONT_AUDIT, GR_RESOURCE_MSG, task, wanted, restab_log[res], rlim);
+
+	return;
+out_rcu_unlock:
+	rcu_read_unlock();
+	return;
+}
diff --git a/grsecurity/gracl_segv.c b/grsecurity/gracl_segv.c
new file mode 100644
index 0000000..02c5a2b
--- /dev/null
+++ b/grsecurity/gracl_segv.c
@@ -0,0 +1,306 @@
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <asm/uaccess.h>
+#include <asm/errno.h>
+#include <asm/mman.h>
+#include <net/sock.h>
+#include <linux/file.h>
+#include <linux/fs.h>
+#include <linux/net.h>
+#include <linux/in.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/timer.h>
+#include <linux/gracl.h>
+#include <linux/grsecurity.h>
+#include <linux/grinternal.h>
+#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
+#include <linux/magic.h>
+#include <linux/pagemap.h>
+#include "../fs/btrfs/async-thread.h"
+#include "../fs/btrfs/ctree.h"
+#include "../fs/btrfs/btrfs_inode.h"
+#endif
+
+static struct crash_uid *uid_set;
+static unsigned short uid_used;
+static DEFINE_SPINLOCK(gr_uid_lock);
+extern rwlock_t gr_inode_lock;
+extern struct acl_subject_label *
+	lookup_acl_subj_label(const u64 inode, const dev_t dev,
+			      const struct acl_role_label *role);
+
+int
+gr_init_uidset(void)
+{
+	uid_set =
+	    kmalloc(GR_UIDTABLE_MAX * sizeof (struct crash_uid), GFP_KERNEL);
+	uid_used = 0;
+
+	return uid_set ? 1 : 0;
+}
+
+void
+gr_free_uidset(void)
+{
+	if (uid_set) {
+		struct crash_uid *tmpset;
+		spin_lock(&gr_uid_lock);
+		tmpset = uid_set;
+		uid_set = NULL;
+		uid_used = 0;
+		spin_unlock(&gr_uid_lock);
+		if (tmpset)
+			kfree(tmpset);
+	}
+
+	return;
+}
+
+int
+gr_find_uid(const uid_t uid)
+{
+	struct crash_uid *tmp = uid_set;
+	uid_t buid;
+	int low = 0, high = uid_used - 1, mid;
+
+	while (high >= low) {
+		mid = (low + high) >> 1;
+		buid = tmp[mid].uid;
+		if (buid == uid)
+			return mid;
+		if (buid > uid)
+			high = mid - 1;
+		if (buid < uid)
+			low = mid + 1;
+	}
+
+	return -1;
+}
+
+static void
+gr_insertsort(void)
+{
+	unsigned short i, j;
+	struct crash_uid index;
+
+	for (i = 1; i < uid_used; i++) {
+		index = uid_set[i];
+		j = i;
+		while ((j > 0) && uid_set[j - 1].uid > index.uid) {
+			uid_set[j] = uid_set[j - 1];
+			j--;
+		}
+		uid_set[j] = index;
+	}
+
+	return;
+}
+
+static void
+gr_insert_uid(const kuid_t kuid, const unsigned long expires)
+{
+	int loc;
+	uid_t uid = GR_GLOBAL_UID(kuid);
+
+	if (uid_used == GR_UIDTABLE_MAX)
+		return;
+
+	loc = gr_find_uid(uid);
+
+	if (loc >= 0) {
+		uid_set[loc].expires = expires;
+		return;
+	}
+
+	uid_set[uid_used].uid = uid;
+	uid_set[uid_used].expires = expires;
+	uid_used++;
+
+	gr_insertsort();
+
+	return;
+}
+
+void
+gr_remove_uid(const unsigned short loc)
+{
+	unsigned short i;
+
+	for (i = loc + 1; i < uid_used; i++)
+		uid_set[i - 1] = uid_set[i];
+
+	uid_used--;
+
+	return;
+}
+
+int gr_find_and_remove_uid(uid_t uid)
+{
+	int loc;
+
+	spin_lock(&gr_uid_lock);
+	loc = gr_find_uid(uid);
+	if (loc >= 0)
+		gr_remove_uid(loc);
+	spin_unlock(&gr_uid_lock);
+
+	return loc >= 0 ? 1 : 0;
+}
+
+int
+gr_check_crash_uid(const kuid_t kuid)
+{
+	int loc;
+	int ret = 0;
+	uid_t uid;
+
+	if (unlikely(!gr_acl_is_enabled()))
+		return 0;
+
+	uid = GR_GLOBAL_UID(kuid);
+
+	spin_lock(&gr_uid_lock);
+	loc = gr_find_uid(uid);
+
+	if (loc < 0)
+		goto out_unlock;
+
+	if (time_before_eq(uid_set[loc].expires, get_seconds()))
+		gr_remove_uid(loc);
+	else
+		ret = 1;
+
+out_unlock:
+	spin_unlock(&gr_uid_lock);
+	return ret;
+}
+
+extern int gr_fake_force_sig(int sig, struct task_struct *t);
+
+void
+gr_handle_crash(struct task_struct *task, const int sig)
+{
+	struct acl_subject_label *curr;
+	struct task_struct *tsk, *tsk2;
+	const struct cred *cred;
+	const struct cred *cred2;
+
+	if (sig != SIGSEGV && sig != SIGKILL && sig != SIGBUS && sig != SIGILL)
+		return;
+
+	if (unlikely(!gr_acl_is_enabled()))
+		return;
+
+	curr = task->acl;
+
+	if (!(curr->resmask & (1U << GR_CRASH_RES)))
+		return;
+
+	if (time_before_eq(curr->expires, get_seconds())) {
+		curr->expires = 0;
+		curr->crashes = 0;
+	}
+
+	curr->crashes++;
+
+	if (!curr->expires)
+		curr->expires = get_seconds() + curr->res[GR_CRASH_RES].rlim_max;
+
+	if ((curr->crashes >= curr->res[GR_CRASH_RES].rlim_cur) &&
+	    time_after(curr->expires, get_seconds())) {
+		int is_priv = is_privileged_binary(task->mm->exe_file->f_path.dentry);
+
+		rcu_read_lock();
+		cred = __task_cred(task);
+		if (gr_is_global_nonroot(cred->uid) && is_priv) {
+			gr_log_crash1(GR_DONT_AUDIT, GR_SEGVSTART_ACL_MSG, task, curr->res[GR_CRASH_RES].rlim_max);
+			spin_lock(&gr_uid_lock);
+			gr_insert_uid(cred->uid, curr->expires);
+			spin_unlock(&gr_uid_lock);
+			curr->expires = 0;
+			curr->crashes = 0;
+			read_lock(&tasklist_lock);
+			do_each_thread(tsk2, tsk) {
+				cred2 = __task_cred(tsk);
+				if (tsk != task && uid_eq(cred2->uid, cred->uid))
+					gr_fake_force_sig(SIGKILL, tsk);
+			} while_each_thread(tsk2, tsk);
+			read_unlock(&tasklist_lock);
+		} else {
+			gr_log_crash2(GR_DONT_AUDIT, GR_SEGVNOSUID_ACL_MSG, task, curr->res[GR_CRASH_RES].rlim_max);
+			read_lock(&tasklist_lock);
+			read_lock(&grsec_exec_file_lock);
+			do_each_thread(tsk2, tsk) {
+				if (likely(tsk != task)) {
+					// if this thread has the same subject as the one that triggered
+					// RES_CRASH and it's the same binary, kill it
+					if (tsk->acl == task->acl && gr_is_same_file(tsk->exec_file, task->exec_file))
+						gr_fake_force_sig(SIGKILL, tsk);
+				}
+			} while_each_thread(tsk2, tsk);
+			read_unlock(&grsec_exec_file_lock);
+			read_unlock(&tasklist_lock);
+		}
+		rcu_read_unlock();
+	}
+
+	return;
+}
+
+int
+gr_check_crash_exec(const struct file *filp)
+{
+	struct acl_subject_label *curr;
+	struct dentry *dentry;
+
+	if (unlikely(!gr_acl_is_enabled()))
+		return 0;
+
+	read_lock(&gr_inode_lock);
+	dentry = filp->f_path.dentry;
+	curr = lookup_acl_subj_label(gr_get_ino_from_dentry(dentry), gr_get_dev_from_dentry(dentry),
+				     current->role);
+	read_unlock(&gr_inode_lock);
+
+	if (!curr || !(curr->resmask & (1U << GR_CRASH_RES)) ||
+	    (!curr->crashes && !curr->expires))
+		return 0;
+
+	if ((curr->crashes >= curr->res[GR_CRASH_RES].rlim_cur) &&
+	    time_after(curr->expires, get_seconds()))
+		return 1;
+	else if (time_before_eq(curr->expires, get_seconds())) {
+		curr->crashes = 0;
+		curr->expires = 0;
+	}
+
+	return 0;
+}
+
+void
+gr_handle_alertkill(struct task_struct *task)
+{
+	struct acl_subject_label *curracl;
+	__u32 curr_ip;
+	struct task_struct *p, *p2;
+
+	if (unlikely(!gr_acl_is_enabled()))
+		return;
+
+	curracl = task->acl;
+	curr_ip = task->signal->curr_ip;
+
+	if ((curracl->mode & GR_KILLIPPROC) && curr_ip) {
+		read_lock(&tasklist_lock);
+		do_each_thread(p2, p) {
+			if (p->signal->curr_ip == curr_ip)
+				gr_fake_force_sig(SIGKILL, p);
+		} while_each_thread(p2, p);
+		read_unlock(&tasklist_lock);
+	} else if (curracl->mode & GR_KILLPROC)
+		gr_fake_force_sig(SIGKILL, task);
+
+	return;
+}
diff --git a/grsecurity/gracl_shm.c b/grsecurity/gracl_shm.c
new file mode 100644
index 0000000..6b0c9cc
--- /dev/null
+++ b/grsecurity/gracl_shm.c
@@ -0,0 +1,40 @@
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/file.h>
+#include <linux/ipc.h>
+#include <linux/gracl.h>
+#include <linux/grsecurity.h>
+#include <linux/grinternal.h>
+
+int
+gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
+		const u64 shm_createtime, const kuid_t cuid, const int shmid)
+{
+	struct task_struct *task;
+
+	if (!gr_acl_is_enabled())
+		return 1;
+
+	rcu_read_lock();
+	read_lock(&tasklist_lock);
+
+	task = find_task_by_vpid(shm_cprid);
+
+	if (unlikely(!task))
+		task = find_task_by_vpid(shm_lapid);
+
+	if (unlikely(task && (time_before_eq64(task->start_time, shm_createtime) ||
+			      (task_pid_nr(task) == shm_lapid)) &&
+		     (task->acl->mode & GR_PROTSHM) &&
+		     (task->acl != current->acl))) {
+		read_unlock(&tasklist_lock);
+		rcu_read_unlock();
+		gr_log_int3(GR_DONT_AUDIT, GR_SHMAT_ACL_MSG, GR_GLOBAL_UID(cuid), shm_cprid, shmid);
+		return 0;
+	}
+	read_unlock(&tasklist_lock);
+	rcu_read_unlock();
+
+	return 1;
+}
diff --git a/grsecurity/grsec_chdir.c b/grsecurity/grsec_chdir.c
new file mode 100644
index 0000000..bc0be01
--- /dev/null
+++ b/grsecurity/grsec_chdir.c
@@ -0,0 +1,19 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/grsecurity.h>
+#include <linux/grinternal.h>
+
+void
+gr_log_chdir(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR
+	if ((grsec_enable_chdir && grsec_enable_group &&
+	     in_group_p(grsec_audit_gid)) || (grsec_enable_chdir &&
+					      !grsec_enable_group)) {
+		gr_log_fs_generic(GR_DO_AUDIT, GR_CHDIR_AUDIT_MSG, dentry, mnt);
+	}
+#endif
+	return;
+}
diff --git a/grsecurity/grsec_chroot.c b/grsecurity/grsec_chroot.c
new file mode 100644
index 0000000..1964ab1c
--- /dev/null
+++ b/grsecurity/grsec_chroot.c
@@ -0,0 +1,506 @@
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/file.h>
+#include <linux/fs.h>
+#include <linux/mount.h>
+#include <linux/types.h>
+#include <linux/namei.h>
+#include "../fs/mount.h"
+#include <linux/grsecurity.h>
+#include <linux/grinternal.h>
+
+#ifdef CONFIG_GRKERNSEC_CHROOT_INITRD
+int gr_init_ran;
+#endif
+
+void gr_inc_chroot_refcnts(struct dentry *dentry, struct vfsmount *mnt)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
+	struct dentry *tmpd = dentry;
+
+	read_seqlock_excl(&mount_lock);
+	write_seqlock(&rename_lock);
+
+	while (tmpd != mnt->mnt_root) {
+		atomic_inc(&tmpd->chroot_refcnt);
+		tmpd = tmpd->d_parent;
+	}
+	atomic_inc(&tmpd->chroot_refcnt);
+
+	write_sequnlock(&rename_lock);
+	read_sequnlock_excl(&mount_lock);
+#endif
+}
+
+void gr_dec_chroot_refcnts(struct dentry *dentry, struct vfsmount *mnt)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
+	struct dentry *tmpd = dentry;
+
+	read_seqlock_excl(&mount_lock);
+	write_seqlock(&rename_lock);
+
+	while (tmpd != mnt->mnt_root) {
+		atomic_dec(&tmpd->chroot_refcnt);
+		tmpd = tmpd->d_parent;
+	}
+	atomic_dec(&tmpd->chroot_refcnt);
+
+	write_sequnlock(&rename_lock);
+	read_sequnlock_excl(&mount_lock);
+#endif
+}
+
+#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
+static struct dentry *get_closest_chroot(struct dentry *dentry)
+{
+	write_seqlock(&rename_lock);
+	do {
+		if (atomic_read(&dentry->chroot_refcnt)) {
+			write_sequnlock(&rename_lock);
+			return dentry;
+		}
+		dentry = dentry->d_parent;
+	} while (!IS_ROOT(dentry));
+	write_sequnlock(&rename_lock);
+	return NULL;
+}
+#endif
+
+int gr_bad_chroot_rename(struct dentry *olddentry, struct vfsmount *oldmnt,
+			 struct dentry *newdentry, struct vfsmount *newmnt)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
+	struct dentry *chroot;
+
+	if (unlikely(!grsec_enable_chroot_rename))
+		return 0;
+
+	if (likely(!proc_is_chrooted(current) && gr_is_global_root(current_uid())))
+		return 0;
+
+	chroot = get_closest_chroot(olddentry);
+
+	if (chroot == NULL)
+		return 0;
+
+	if (is_subdir(newdentry, chroot))
+		return 0;
+
+	gr_log_fs_generic(GR_DONT_AUDIT, GR_CHROOT_RENAME_MSG, olddentry, oldmnt);
+
+	return 1;
+#else
+	return 0;
+#endif
+}
+
+void gr_set_chroot_entries(struct task_struct *task, const struct path *path)
+{
+#ifdef CONFIG_GRKERNSEC
+	if (task_pid_nr(task) > 1 && path->dentry != init_task.fs->root.dentry &&
+	    		     path->dentry != task->nsproxy->mnt_ns->root->mnt.mnt_root
+#ifdef CONFIG_GRKERNSEC_CHROOT_INITRD
+			     && gr_init_ran
+#endif
+	   )
+		task->gr_is_chrooted = 1;
+	else {
+#ifdef CONFIG_GRKERNSEC_CHROOT_INITRD
+		if (task_pid_nr(task) == 1 && !gr_init_ran)
+			gr_init_ran = 1;
+#endif
+		task->gr_is_chrooted = 0;
+	}
+
+	task->gr_chroot_dentry = path->dentry;
+#endif
+	return;
+}
+
+void gr_clear_chroot_entries(struct task_struct *task)
+{
+#ifdef CONFIG_GRKERNSEC
+	task->gr_is_chrooted = 0;
+	task->gr_chroot_dentry = NULL;
+#endif
+	return;
+}	
+
+int
+gr_handle_chroot_unix(const pid_t pid)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX
+	struct task_struct *p;
+
+	if (unlikely(!grsec_enable_chroot_unix))
+		return 1;
+
+	if (likely(!proc_is_chrooted(current)))
+		return 1;
+
+	rcu_read_lock();
+	read_lock(&tasklist_lock);
+	p = find_task_by_vpid_unrestricted(pid);
+	if (unlikely(p && !have_same_root(current, p))) {
+		read_unlock(&tasklist_lock);
+		rcu_read_unlock();
+		gr_log_noargs(GR_DONT_AUDIT, GR_UNIX_CHROOT_MSG);
+		return 0;
+	}
+	read_unlock(&tasklist_lock);
+	rcu_read_unlock();
+#endif
+	return 1;
+}
+
+int
+gr_handle_chroot_nice(void)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
+	if (grsec_enable_chroot_nice && proc_is_chrooted(current)) {
+		gr_log_noargs(GR_DONT_AUDIT, GR_NICE_CHROOT_MSG);
+		return -EPERM;
+	}
+#endif
+	return 0;
+}
+
+int
+gr_handle_chroot_setpriority(struct task_struct *p, const int niceval)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
+	if (grsec_enable_chroot_nice && (niceval < task_nice(p))
+			&& proc_is_chrooted(current)) {
+		gr_log_str_int(GR_DONT_AUDIT, GR_PRIORITY_CHROOT_MSG, p->comm, task_pid_nr(p));
+		return -EACCES;
+	}
+#endif
+	return 0;
+}
+
+int
+gr_handle_chroot_fowner(struct pid *pid, enum pid_type type)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
+	struct task_struct *p;
+	int ret = 0;
+	if (!grsec_enable_chroot_findtask || !proc_is_chrooted(current) || !pid)
+		return ret;
+
+	read_lock(&tasklist_lock);
+	do_each_pid_task(pid, type, p) {
+		if (!have_same_root(current, p)) {
+			ret = 1;
+			goto out;
+		}
+	} while_each_pid_task(pid, type, p);
+out:
+	read_unlock(&tasklist_lock);
+	return ret;
+#endif
+	return 0;
+}
+
+int
+gr_pid_is_chrooted(struct task_struct *p)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
+	if (!grsec_enable_chroot_findtask || !proc_is_chrooted(current) || p == NULL)
+		return 0;
+
+	if ((p->exit_state & (EXIT_ZOMBIE | EXIT_DEAD)) ||
+	    !have_same_root(current, p)) {
+		return 1;
+	}
+#endif
+	return 0;
+}
+
+EXPORT_SYMBOL_GPL(gr_pid_is_chrooted);
+
+#if defined(CONFIG_GRKERNSEC_CHROOT_DOUBLE) || defined(CONFIG_GRKERNSEC_CHROOT_FCHDIR)
+int gr_is_outside_chroot(const struct dentry *u_dentry, const struct vfsmount *u_mnt)
+{
+	struct path path, currentroot;
+	int ret = 0;
+
+	path.dentry = (struct dentry *)u_dentry;
+	path.mnt = (struct vfsmount *)u_mnt;
+	get_fs_root(current->fs, &currentroot);
+	if (path_is_under(&path, &currentroot))
+		ret = 1;
+	path_put(&currentroot);
+
+	return ret;
+}
+#endif
+
+int
+gr_chroot_fchdir(struct dentry *u_dentry, struct vfsmount *u_mnt)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
+	if (!grsec_enable_chroot_fchdir)
+		return 1;
+
+	if (!proc_is_chrooted(current))
+		return 1;
+	else if (!gr_is_outside_chroot(u_dentry, u_mnt)) {
+		gr_log_fs_generic(GR_DONT_AUDIT, GR_CHROOT_FCHDIR_MSG, u_dentry, u_mnt);
+		return 0;
+	}
+#endif
+	return 1;
+}
+
+int
+gr_chroot_pathat(int dfd, struct dentry *u_dentry, struct vfsmount *u_mnt, unsigned flags)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
+	struct fd f;
+	struct path fd_path;
+	struct path file_path;
+
+	if (!grsec_enable_chroot_fchdir)
+		return 0;
+
+	if (!proc_is_chrooted(current) || dfd == -1 || dfd == AT_FDCWD)
+		return 0;
+
+	if (flags & LOOKUP_RCU)
+		return -ECHILD;
+
+	f = fdget_raw(dfd);
+	if (!f.file)
+		return 0;
+
+	fd_path = f.file->f_path;
+	path_get(&fd_path);
+	fdput(f);
+
+	file_path.dentry = u_dentry;
+	file_path.mnt = u_mnt;
+
+	if (!gr_is_outside_chroot(u_dentry, u_mnt) && !path_is_under(&file_path, &fd_path)) {
+		path_put(&fd_path);
+		gr_log_fs_generic(GR_DONT_AUDIT, GR_CHROOT_PATHAT_MSG, u_dentry, u_mnt);
+		return -ENOENT;
+	}
+	path_put(&fd_path);
+#endif
+	return 0;
+}
+
+int
+gr_chroot_fhandle(void)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
+	if (!grsec_enable_chroot_fchdir)
+		return 1;
+
+	if (!proc_is_chrooted(current))
+		return 1;
+	else {
+		gr_log_noargs(GR_DONT_AUDIT, GR_CHROOT_FHANDLE_MSG);
+		return 0;
+	}
+#endif
+	return 1;
+}
+
+int
+gr_chroot_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
+		const u64 shm_createtime)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT
+	struct task_struct *p;
+
+	if (unlikely(!grsec_enable_chroot_shmat))
+		return 1;
+
+	if (likely(!proc_is_chrooted(current)))
+		return 1;
+
+	rcu_read_lock();
+	read_lock(&tasklist_lock);
+
+	if ((p = find_task_by_vpid_unrestricted(shm_cprid))) {
+		if (time_before_eq64(p->start_time, shm_createtime)) {
+			if (have_same_root(current, p)) {
+				goto allow;
+			} else {
+				read_unlock(&tasklist_lock);
+				rcu_read_unlock();
+				gr_log_noargs(GR_DONT_AUDIT, GR_SHMAT_CHROOT_MSG);
+				return 0;
+			}
+		}
+		/* creator exited, pid reuse, fall through to next check */
+	}
+	if ((p = find_task_by_vpid_unrestricted(shm_lapid))) {
+		if (unlikely(!have_same_root(current, p))) {
+			read_unlock(&tasklist_lock);
+			rcu_read_unlock();
+			gr_log_noargs(GR_DONT_AUDIT, GR_SHMAT_CHROOT_MSG);
+			return 0;
+		}
+	}
+
+allow:
+	read_unlock(&tasklist_lock);
+	rcu_read_unlock();
+#endif
+	return 1;
+}
+
+void
+gr_log_chroot_exec(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG
+	if (grsec_enable_chroot_execlog && proc_is_chrooted(current))
+		gr_log_fs_generic(GR_DO_AUDIT, GR_EXEC_CHROOT_MSG, dentry, mnt);
+#endif
+	return;
+}
+
+int
+gr_handle_chroot_mknod(const struct dentry *dentry,
+		       const struct vfsmount *mnt, const int mode)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD
+	if (grsec_enable_chroot_mknod && !S_ISFIFO(mode) && !S_ISREG(mode) && 
+	    proc_is_chrooted(current)) {
+		gr_log_fs_generic(GR_DONT_AUDIT, GR_MKNOD_CHROOT_MSG, dentry, mnt);
+		return -EPERM;
+	}
+#endif
+	return 0;
+}
+
+int
+gr_handle_chroot_mount(const struct dentry *dentry,
+		       const struct vfsmount *mnt, const char *dev_name)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT
+	if (grsec_enable_chroot_mount && proc_is_chrooted(current)) {
+		gr_log_str_fs(GR_DONT_AUDIT, GR_MOUNT_CHROOT_MSG, dev_name ? dev_name : "none", dentry, mnt);
+		return -EPERM;
+	}
+#endif
+	return 0;
+}
+
+int
+gr_handle_chroot_pivot(void)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT
+	if (grsec_enable_chroot_pivot && proc_is_chrooted(current)) {
+		gr_log_noargs(GR_DONT_AUDIT, GR_PIVOT_CHROOT_MSG);
+		return -EPERM;
+	}
+#endif
+	return 0;
+}
+
+int
+gr_handle_chroot_chroot(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE
+	if (grsec_enable_chroot_double && proc_is_chrooted(current) &&
+	    !gr_is_outside_chroot(dentry, mnt)) {
+		gr_log_fs_generic(GR_DONT_AUDIT, GR_CHROOT_CHROOT_MSG, dentry, mnt);
+		return -EPERM;
+	}
+#endif
+	return 0;
+}
+
+extern const char *captab_log[];
+extern int captab_log_entries;
+
+int
+gr_task_chroot_is_capable(const struct task_struct *task, const struct cred *cred, const int cap)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
+	if (grsec_enable_chroot_caps && proc_is_chrooted(task)) {
+		kernel_cap_t chroot_caps = GR_CHROOT_CAPS;
+		if (cap_raised(chroot_caps, cap)) {
+			if (cap_raised(cred->cap_effective, cap) && cap < captab_log_entries) {
+				gr_log_cap(GR_DONT_AUDIT, GR_CAP_CHROOT_MSG, task, captab_log[cap]);
+			}
+			return 0;
+		}
+	}
+#endif
+	return 1;
+}
+
+int
+gr_chroot_is_capable(const int cap)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
+	return gr_task_chroot_is_capable(current, current_cred(), cap);
+#endif
+	return 1;
+}
+
+int
+gr_task_chroot_is_capable_nolog(const struct task_struct *task, const int cap)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
+	if (grsec_enable_chroot_caps && proc_is_chrooted(task)) {
+		kernel_cap_t chroot_caps = GR_CHROOT_CAPS;
+		if (cap_raised(chroot_caps, cap)) {
+			return 0;
+		}
+	}
+#endif
+	return 1;
+}
+
+int
+gr_chroot_is_capable_nolog(const int cap)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
+	return gr_task_chroot_is_capable_nolog(current, cap);
+#endif
+	return 1;
+}
+
+int
+gr_handle_chroot_sysctl(const int op)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL
+	if (grsec_enable_chroot_sysctl && (op & MAY_WRITE) &&
+	    proc_is_chrooted(current))
+		return -EACCES;
+#endif
+	return 0;
+}
+
+void
+gr_handle_chroot_chdir(const struct path *path)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR
+	if (grsec_enable_chroot_chdir)
+		set_fs_pwd(current->fs, path);
+#endif
+	return;
+}
+
+int
+gr_handle_chroot_chmod(const struct dentry *dentry,
+		       const struct vfsmount *mnt, const int mode)
+{
+#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD
+	/* allow chmod +s on directories, but not files */
+	if (grsec_enable_chroot_chmod && !d_is_dir(dentry) &&
+	    ((mode & S_ISUID) || ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))) &&
+	    proc_is_chrooted(current)) {
+		gr_log_fs_generic(GR_DONT_AUDIT, GR_CHMOD_CHROOT_MSG, dentry, mnt);
+		return -EPERM;
+	}
+#endif
+	return 0;
+}
diff --git a/grsecurity/grsec_disabled.c b/grsecurity/grsec_disabled.c
new file mode 100644
index 0000000..ba8d997
--- /dev/null
+++ b/grsecurity/grsec_disabled.c
@@ -0,0 +1,445 @@
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/file.h>
+#include <linux/fs.h>
+#include <linux/kdev_t.h>
+#include <linux/net.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/skbuff.h>
+#include <linux/sysctl.h>
+
+#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
+void
+pax_set_initial_flags(struct linux_binprm *bprm)
+{
+	return;
+}
+#endif
+
+#ifdef CONFIG_SYSCTL
+__u32
+gr_handle_sysctl(const struct ctl_table * table, const int op)
+{
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_TASKSTATS
+int gr_is_taskstats_denied(int pid)
+{
+	return 0;
+}
+#endif
+
+int
+gr_acl_is_enabled(void)
+{
+	return 0;
+}
+
+int
+gr_learn_cap(const struct task_struct *task, const struct cred *cred, const int cap, bool log)
+{
+	return 0;
+}
+
+void
+gr_handle_proc_create(const struct dentry *dentry, const struct inode *inode) 
+{
+	return;
+}
+
+int
+gr_handle_rawio(const struct inode *inode)
+{
+	return 0;
+}
+
+void
+gr_acl_handle_psacct(struct task_struct *task, const long code)
+{
+	return;
+}
+
+int
+gr_handle_ptrace(struct task_struct *task, const long request)
+{
+	return 0;
+}
+
+int
+gr_handle_proc_ptrace(struct task_struct *task)
+{
+	return 0;
+}
+
+int
+gr_set_acls(const int type)
+{
+	return 0;
+}
+
+int
+gr_check_hidden_task(const struct task_struct *tsk)
+{
+	return 0;
+}
+
+int
+gr_check_protected_task(const struct task_struct *task)
+{
+	return 0;
+}
+
+int
+gr_check_protected_task_fowner(struct pid *pid, enum pid_type type)
+{
+	return 0;
+}
+
+void
+gr_copy_label(struct task_struct *tsk)
+{
+	return;
+}
+
+void
+gr_set_pax_flags(struct task_struct *task)
+{
+	return;
+}
+
+int
+gr_set_proc_label(const struct dentry *dentry, const struct vfsmount *mnt,
+		  const int unsafe_share)
+{
+	return 0;
+}
+
+void
+gr_handle_delete(const u64 ino, const dev_t dev)
+{
+	return;
+}
+
+void
+gr_handle_create(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+	return;
+}
+
+void
+gr_handle_crash(struct task_struct *task, const int sig)
+{
+	return;
+}
+
+int
+gr_check_crash_exec(const struct file *filp)
+{
+	return 0;
+}
+
+int
+gr_check_crash_uid(const kuid_t uid)
+{
+	return 0;
+}
+
+void
+gr_handle_rename(struct inode *old_dir, struct inode *new_dir,
+		 struct dentry *old_dentry,
+		 struct dentry *new_dentry,
+		 struct vfsmount *mnt, const __u8 replace, unsigned int flags)
+{
+	return;
+}
+
+int
+gr_search_socket(const int family, const int type, const int protocol)
+{
+	return 1;
+}
+
+int
+gr_search_connectbind(const int mode, const struct socket *sock,
+		      const struct sockaddr_in *addr)
+{
+	return 0;
+}
+
+void
+gr_handle_alertkill(struct task_struct *task)
+{
+	return;
+}
+
+__u32
+gr_acl_handle_execve(const struct dentry * dentry, const struct vfsmount * mnt)
+{
+	return 1;
+}
+
+__u32
+gr_acl_handle_hidden_file(const struct dentry * dentry,
+			  const struct vfsmount * mnt)
+{
+	return 1;
+}
+
+__u32
+gr_acl_handle_open(const struct dentry * dentry, const struct vfsmount * mnt,
+		   int acc_mode)
+{
+	return 1;
+}
+
+__u32
+gr_acl_handle_rmdir(const struct dentry * dentry, const struct vfsmount * mnt)
+{
+	return 1;
+}
+
+__u32
+gr_acl_handle_unlink(const struct dentry * dentry, const struct vfsmount * mnt)
+{
+	return 1;
+}
+
+int
+gr_acl_handle_mmap(const struct file *file, const unsigned long prot,
+		   unsigned int *vm_flags)
+{
+	return 1;
+}
+
+__u32
+gr_acl_handle_truncate(const struct dentry * dentry,
+		       const struct vfsmount * mnt)
+{
+	return 1;
+}
+
+__u32
+gr_acl_handle_utime(const struct dentry * dentry, const struct vfsmount * mnt)
+{
+	return 1;
+}
+
+__u32
+gr_acl_handle_access(const struct dentry * dentry,
+		     const struct vfsmount * mnt, const int fmode)
+{
+	return 1;
+}
+
+__u32
+gr_acl_handle_chmod(const struct dentry * dentry, const struct vfsmount * mnt,
+		    umode_t *mode)
+{
+	return 1;
+}
+
+__u32
+gr_acl_handle_chown(const struct dentry * dentry, const struct vfsmount * mnt)
+{
+	return 1;
+}
+
+__u32
+gr_acl_handle_setxattr(const struct dentry * dentry, const struct vfsmount * mnt)
+{
+	return 1;
+}
+
+__u32
+gr_acl_handle_removexattr(const struct dentry * dentry, const struct vfsmount * mnt)
+{
+	return 1;
+}
+
+void
+grsecurity_init(void)
+{
+	return;
+}
+
+umode_t gr_acl_umask(void)
+{
+	return 0;
+}
+
+__u32
+gr_acl_handle_mknod(const struct dentry * new_dentry,
+		    const struct dentry * parent_dentry,
+		    const struct vfsmount * parent_mnt,
+		    const int mode)
+{
+	return 1;
+}
+
+__u32
+gr_acl_handle_mkdir(const struct dentry * new_dentry,
+		    const struct dentry * parent_dentry,
+		    const struct vfsmount * parent_mnt)
+{
+	return 1;
+}
+
+__u32
+gr_acl_handle_symlink(const struct dentry * new_dentry,
+		      const struct dentry * parent_dentry,
+		      const struct vfsmount * parent_mnt, const struct filename *from)
+{
+	return 1;
+}
+
+__u32
+gr_acl_handle_link(const struct dentry * new_dentry,
+		   const struct dentry * parent_dentry,
+		   const struct vfsmount * parent_mnt,
+		   const struct dentry * old_dentry,
+		   const struct vfsmount * old_mnt, const struct filename *to)
+{
+	return 1;
+}
+
+int
+gr_acl_handle_rename(const struct dentry *new_dentry,
+		     const struct dentry *parent_dentry,
+		     const struct vfsmount *parent_mnt,
+		     const struct dentry *old_dentry,
+		     const struct inode *old_parent_inode,
+		     const struct vfsmount *old_mnt, const struct filename *newname,
+		     unsigned int flags)
+{
+	return 0;
+}
+
+int
+gr_acl_handle_filldir(const struct file *file, const char *name,
+		      const int namelen, const u64 ino)
+{
+	return 1;
+}
+
+int
+gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
+		const u64 shm_createtime, const kuid_t cuid, const int shmid)
+{
+	return 1;
+}
+
+int
+gr_search_bind(const struct socket *sock, const struct sockaddr_in *addr)
+{
+	return 0;
+}
+
+int
+gr_search_accept(const struct socket *sock)
+{
+	return 0;
+}
+
+int
+gr_search_listen(const struct socket *sock)
+{
+	return 0;
+}
+
+int
+gr_search_connect(const struct socket *sock, const struct sockaddr_in *addr)
+{
+	return 0;
+}
+
+__u32
+gr_acl_handle_unix(const struct dentry * dentry, const struct vfsmount * mnt)
+{
+	return 1;
+}
+
+__u32
+gr_acl_handle_creat(const struct dentry * dentry,
+		    const struct dentry * p_dentry,
+		    const struct vfsmount * p_mnt, int open_flags, int acc_mode,
+		    const int imode)
+{
+	return 1;
+}
+
+void
+gr_acl_handle_exit(void)
+{
+	return;
+}
+
+int
+gr_acl_handle_mprotect(const struct file *file, const unsigned long prot)
+{
+	return 1;
+}
+
+void
+gr_set_role_label(const kuid_t uid, const kgid_t gid)
+{
+	return;
+}
+
+int
+gr_acl_handle_procpidmem(const struct task_struct *task)
+{
+	return 0;
+}
+
+int
+gr_search_udp_recvmsg(struct sock *sk, const struct sk_buff *skb)
+{
+	return 0;
+}
+
+int
+gr_search_udp_sendmsg(struct sock *sk, struct sockaddr_in *addr)
+{
+	return 0;
+}
+
+int
+gr_check_user_change(kuid_t real, kuid_t effective, kuid_t fs)
+{
+	return 0;
+}
+
+int
+gr_check_group_change(kgid_t real, kgid_t effective, kgid_t fs)
+{
+	return 0;
+}
+
+int gr_acl_enable_at_secure(void)
+{
+	return 0;
+}
+
+dev_t gr_get_dev_from_dentry(struct dentry *dentry)
+{
+	return d_backing_inode(dentry)->i_sb->s_dev;
+}
+
+u64 gr_get_ino_from_dentry(struct dentry *dentry)
+{
+	return d_backing_inode(dentry)->i_ino;
+}
+
+void gr_put_exec_file(struct task_struct *task)
+{
+	return;
+}
+
+#ifdef CONFIG_SECURITY
+EXPORT_SYMBOL_GPL(gr_check_user_change);
+EXPORT_SYMBOL_GPL(gr_check_group_change);
+#endif
diff --git a/grsecurity/grsec_exec.c b/grsecurity/grsec_exec.c
new file mode 100644
index 0000000..808006e
--- /dev/null
+++ b/grsecurity/grsec_exec.c
@@ -0,0 +1,188 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/file.h>
+#include <linux/binfmts.h>
+#include <linux/fs.h>
+#include <linux/types.h>
+#include <linux/grdefs.h>
+#include <linux/grsecurity.h>
+#include <linux/grinternal.h>
+#include <linux/capability.h>
+#include <linux/module.h>
+#include <linux/compat.h>
+
+#include <asm/uaccess.h>
+
+#ifdef CONFIG_GRKERNSEC_EXECLOG
+static char gr_exec_arg_buf[132];
+static DEFINE_MUTEX(gr_exec_arg_mutex);
+#endif
+
+struct user_arg_ptr {
+#ifdef CONFIG_COMPAT
+	bool is_compat;
+#endif
+	union {
+		const char __user *const __user *native;
+#ifdef CONFIG_COMPAT
+		const compat_uptr_t __user *compat;
+#endif
+	} ptr;
+};
+
+extern const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr);
+
+void
+gr_handle_exec_args(struct linux_binprm *bprm, struct user_arg_ptr argv)
+{
+#ifdef CONFIG_GRKERNSEC_EXECLOG
+	char *grarg = gr_exec_arg_buf;
+	unsigned int i, x, execlen = 0;
+	char c;
+
+	if (!((grsec_enable_execlog && grsec_enable_group &&
+	       in_group_p(grsec_audit_gid))
+	      || (grsec_enable_execlog && !grsec_enable_group)))
+		return;
+
+	mutex_lock(&gr_exec_arg_mutex);
+	memset(grarg, 0, sizeof(gr_exec_arg_buf));
+
+	for (i = 0; i < bprm->argc && execlen < 128; i++) {
+		const char __user *p;
+		unsigned int len;
+
+		p = get_user_arg_ptr(argv, i);
+		if (IS_ERR(p))
+			goto log;
+
+		len = strnlen_user(p, 128 - execlen);
+		if (len > 128 - execlen)
+			len = 128 - execlen;
+		else if (len > 0)
+			len--;
+		if (copy_from_user(grarg + execlen, p, len))
+			goto log;
+
+		/* rewrite unprintable characters */
+		for (x = 0; x < len; x++) {
+			c = *(grarg + execlen + x);
+			if (c < 32 || c > 126)
+				*(grarg + execlen + x) = ' ';
+		}
+
+		execlen += len;
+		*(grarg + execlen) = ' ';
+		*(grarg + execlen + 1) = '\0';
+		execlen++;
+	}
+
+      log:
+	gr_log_fs_str(GR_DO_AUDIT, GR_EXEC_AUDIT_MSG, bprm->file->f_path.dentry,
+			bprm->file->f_path.mnt, grarg);
+	mutex_unlock(&gr_exec_arg_mutex);
+#endif
+	return;
+}
+
+#ifdef CONFIG_GRKERNSEC
+extern int gr_acl_is_capable(const int cap);
+extern int gr_acl_is_capable_nolog(const int cap);
+extern int gr_task_acl_is_capable(const struct task_struct *task, const struct cred *cred, const int cap, bool log);
+extern int gr_chroot_is_capable(const int cap);
+extern int gr_chroot_is_capable_nolog(const int cap);
+extern int gr_task_chroot_is_capable(const struct task_struct *task, const struct cred *cred, const int cap);
+extern int gr_task_chroot_is_capable_nolog(const struct task_struct *task, const int cap);
+#endif
+
+const char *captab_log[] = {
+	"CAP_CHOWN",
+	"CAP_DAC_OVERRIDE",
+	"CAP_DAC_READ_SEARCH",
+	"CAP_FOWNER",
+	"CAP_FSETID",
+	"CAP_KILL",
+	"CAP_SETGID",
+	"CAP_SETUID",
+	"CAP_SETPCAP",
+	"CAP_LINUX_IMMUTABLE",
+	"CAP_NET_BIND_SERVICE",
+	"CAP_NET_BROADCAST",
+	"CAP_NET_ADMIN",
+	"CAP_NET_RAW",
+	"CAP_IPC_LOCK",
+	"CAP_IPC_OWNER",
+	"CAP_SYS_MODULE",
+	"CAP_SYS_RAWIO",
+	"CAP_SYS_CHROOT",
+	"CAP_SYS_PTRACE",
+	"CAP_SYS_PACCT",
+	"CAP_SYS_ADMIN",
+	"CAP_SYS_BOOT",
+	"CAP_SYS_NICE",
+	"CAP_SYS_RESOURCE",
+	"CAP_SYS_TIME",
+	"CAP_SYS_TTY_CONFIG",
+	"CAP_MKNOD",
+	"CAP_LEASE",
+	"CAP_AUDIT_WRITE",
+	"CAP_AUDIT_CONTROL",
+	"CAP_SETFCAP",
+	"CAP_MAC_OVERRIDE",
+	"CAP_MAC_ADMIN",
+	"CAP_SYSLOG",
+	"CAP_WAKE_ALARM",
+	"CAP_BLOCK_SUSPEND",
+	"CAP_AUDIT_READ"
+};
+
+int captab_log_entries = sizeof(captab_log)/sizeof(captab_log[0]);
+
+int gr_is_capable(const int cap)
+{
+#ifdef CONFIG_GRKERNSEC
+	if (gr_acl_is_capable(cap) && gr_chroot_is_capable(cap))
+		return 1;
+	return 0;
+#else
+	return 1;
+#endif
+}
+
+int gr_task_is_capable(const struct task_struct *task, const struct cred *cred, const int cap)
+{
+#ifdef CONFIG_GRKERNSEC
+	if (gr_task_acl_is_capable(task, cred, cap, true) && gr_task_chroot_is_capable(task, cred, cap))
+		return 1;
+	return 0;
+#else
+	return 1;
+#endif
+}
+
+int gr_is_capable_nolog(const int cap)
+{
+#ifdef CONFIG_GRKERNSEC
+	if (gr_acl_is_capable_nolog(cap) && gr_chroot_is_capable_nolog(cap))
+		return 1;
+	return 0;
+#else
+	return 1;
+#endif
+}
+
+int gr_task_is_capable_nolog(const struct task_struct *task, const struct cred *cred, const int cap)
+{
+#ifdef CONFIG_GRKERNSEC
+	if (gr_task_acl_is_capable(task, cred, cap, false) && gr_task_chroot_is_capable_nolog(task, cap))
+		return 1;
+	return 0;
+#else
+	return 1;
+#endif
+}
+
+EXPORT_SYMBOL_GPL(gr_is_capable);
+EXPORT_SYMBOL_GPL(gr_is_capable_nolog);
+EXPORT_SYMBOL_GPL(gr_task_is_capable);
+EXPORT_SYMBOL_GPL(gr_task_is_capable_nolog);
diff --git a/grsecurity/grsec_fifo.c b/grsecurity/grsec_fifo.c
new file mode 100644
index 0000000..cdec49b
--- /dev/null
+++ b/grsecurity/grsec_fifo.c
@@ -0,0 +1,26 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/grinternal.h>
+
+int
+gr_handle_fifo(const struct dentry *dentry, const struct vfsmount *mnt,
+	       const struct dentry *dir, const int flag, const int acc_mode)
+{
+#ifdef CONFIG_GRKERNSEC_FIFO
+	const struct cred *cred = current_cred();
+	struct inode *inode = d_backing_inode(dentry);
+	struct inode *dir_inode = d_backing_inode(dir);
+
+	if (grsec_enable_fifo && S_ISFIFO(inode->i_mode) &&
+	    !(flag & O_EXCL) && (dir_inode->i_mode & S_ISVTX) &&
+	    !uid_eq(inode->i_uid, dir_inode->i_uid) &&
+	    !uid_eq(cred->fsuid, inode->i_uid)) {
+		if (!inode_permission(inode, acc_mode))
+			gr_log_fs_int2(GR_DONT_AUDIT, GR_FIFO_MSG, dentry, mnt, GR_GLOBAL_UID(inode->i_uid), GR_GLOBAL_GID(inode->i_gid));
+		return -EACCES;
+	}
+#endif
+	return 0;
+}
diff --git a/grsecurity/grsec_fork.c b/grsecurity/grsec_fork.c
new file mode 100644
index 0000000..8ca18bf
--- /dev/null
+++ b/grsecurity/grsec_fork.c
@@ -0,0 +1,23 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/grsecurity.h>
+#include <linux/grinternal.h>
+#include <linux/errno.h>
+
+void
+gr_log_forkfail(const int retval)
+{
+#ifdef CONFIG_GRKERNSEC_FORKFAIL
+	if (grsec_enable_forkfail && (retval == -EAGAIN || retval == -ENOMEM)) {
+		switch (retval) {
+			case -EAGAIN:
+				gr_log_str(GR_DONT_AUDIT, GR_FAILFORK_MSG, "EAGAIN");
+				break;
+			case -ENOMEM:
+				gr_log_str(GR_DONT_AUDIT, GR_FAILFORK_MSG, "ENOMEM");
+				break;
+		}
+	}
+#endif
+	return;
+}
diff --git a/grsecurity/grsec_init.c b/grsecurity/grsec_init.c
new file mode 100644
index 0000000..6822208
--- /dev/null
+++ b/grsecurity/grsec_init.c
@@ -0,0 +1,294 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/gracl.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/percpu.h>
+#include <linux/module.h>
+
+int grsec_enable_ptrace_readexec __read_only;
+int grsec_enable_setxid __read_only;
+int grsec_enable_symlinkown __read_only;
+kgid_t grsec_symlinkown_gid __read_only;
+int grsec_enable_brute __read_only;
+int grsec_enable_link __read_only;
+int grsec_enable_dmesg __read_only;
+int grsec_enable_harden_ptrace __read_only;
+int grsec_enable_harden_ipc __read_only;
+int grsec_enable_fifo __read_only;
+int grsec_enable_execlog __read_only;
+int grsec_enable_signal __read_only;
+int grsec_enable_forkfail __read_only;
+int grsec_enable_audit_ptrace __read_only;
+int grsec_enable_time __read_only;
+int grsec_enable_group __read_only;
+kgid_t grsec_audit_gid __read_only;
+int grsec_enable_chdir __read_only;
+int grsec_enable_mount __read_only;
+int grsec_enable_rofs __read_only;
+int grsec_deny_new_usb __read_only;
+int grsec_enable_chroot_findtask __read_only;
+int grsec_enable_chroot_mount __read_only;
+int grsec_enable_chroot_shmat __read_only;
+int grsec_enable_chroot_fchdir __read_only;
+int grsec_enable_chroot_double __read_only;
+int grsec_enable_chroot_pivot __read_only;
+int grsec_enable_chroot_chdir __read_only;
+int grsec_enable_chroot_chmod __read_only;
+int grsec_enable_chroot_mknod __read_only;
+int grsec_enable_chroot_nice __read_only;
+int grsec_enable_chroot_execlog __read_only;
+int grsec_enable_chroot_caps __read_only;
+int grsec_enable_chroot_rename __read_only;
+int grsec_enable_chroot_sysctl __read_only;
+int grsec_enable_chroot_unix __read_only;
+int grsec_enable_tpe __read_only;
+kgid_t grsec_tpe_gid __read_only;
+int grsec_enable_blackhole __read_only;
+#ifdef CONFIG_IPV6_MODULE
+EXPORT_SYMBOL_GPL(grsec_enable_blackhole);
+#endif
+int grsec_lastack_retries __read_only;
+int grsec_enable_tpe_all __read_only;
+int grsec_enable_tpe_invert __read_only;
+int grsec_enable_socket_all __read_only;
+kgid_t grsec_socket_all_gid __read_only;
+int grsec_enable_socket_client __read_only;
+kgid_t grsec_socket_client_gid __read_only;
+int grsec_enable_socket_server __read_only;
+kgid_t grsec_socket_server_gid __read_only;
+int grsec_resource_logging __read_only;
+int grsec_disable_privio __read_only;
+int grsec_enable_log_rwxmaps __read_only;
+int grsec_enable_harden_tty __read_only;
+int grsec_lock __read_only;
+
+DEFINE_SPINLOCK(grsec_alert_lock);
+unsigned long grsec_alert_wtime = 0;
+unsigned long grsec_alert_fyet = 0;
+
+DEFINE_SPINLOCK(grsec_audit_lock);
+
+DEFINE_RWLOCK(grsec_exec_file_lock);
+
+char *gr_shared_page[4];
+
+char *gr_alert_log_fmt;
+char *gr_audit_log_fmt;
+char *gr_alert_log_buf;
+char *gr_audit_log_buf;
+
+extern struct gr_arg *gr_usermode;
+extern unsigned char *gr_system_salt;
+extern unsigned char *gr_system_sum;
+
+void __init
+grsecurity_init(void)
+{
+	int j;
+	/* create the per-cpu shared pages */
+
+#ifdef CONFIG_X86
+	memset((char *)(0x41a + PAGE_OFFSET), 0, 36);
+#endif
+
+	for (j = 0; j < 4; j++) {
+		gr_shared_page[j] = (char *)__alloc_percpu(PAGE_SIZE, __alignof__(unsigned long long));
+		if (gr_shared_page[j] == NULL) {
+			panic("Unable to allocate grsecurity shared page");
+			return;
+		}
+	}
+
+	/* allocate log buffers */
+	gr_alert_log_fmt = kmalloc(512, GFP_KERNEL);
+	if (!gr_alert_log_fmt) {
+		panic("Unable to allocate grsecurity alert log format buffer");
+		return;
+	}
+	gr_audit_log_fmt = kmalloc(512, GFP_KERNEL);
+	if (!gr_audit_log_fmt) {
+		panic("Unable to allocate grsecurity audit log format buffer");
+		return;
+	}
+	gr_alert_log_buf = (char *) get_zeroed_page(GFP_KERNEL);
+	if (!gr_alert_log_buf) {
+		panic("Unable to allocate grsecurity alert log buffer");
+		return;
+	}
+	gr_audit_log_buf = (char *) get_zeroed_page(GFP_KERNEL);
+	if (!gr_audit_log_buf) {
+		panic("Unable to allocate grsecurity audit log buffer");
+		return;
+	}
+
+	/* allocate memory for authentication structure */
+	gr_usermode = kmalloc(sizeof(struct gr_arg), GFP_KERNEL);
+	gr_system_salt = kmalloc(GR_SALT_LEN, GFP_KERNEL);
+	gr_system_sum = kmalloc(GR_SHA_LEN, GFP_KERNEL);
+
+	if (!gr_usermode || !gr_system_salt || !gr_system_sum) {
+		panic("Unable to allocate grsecurity authentication structure");
+		return;
+	}
+
+#ifdef CONFIG_GRKERNSEC_IO
+#if !defined(CONFIG_GRKERNSEC_SYSCTL_DISTRO)
+	grsec_disable_privio = 1;
+#elif defined(CONFIG_GRKERNSEC_SYSCTL_ON)
+	grsec_disable_privio = 1;
+#else
+	grsec_disable_privio = 0;
+#endif
+#endif
+
+#ifdef CONFIG_GRKERNSEC_TPE_INVERT
+	/* for backward compatibility, tpe_invert always defaults to on if
+	   enabled in the kernel
+	*/
+	grsec_enable_tpe_invert = 1;
+#endif
+
+#if !defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_SYSCTL_ON)
+#ifndef CONFIG_GRKERNSEC_SYSCTL
+	grsec_lock = 1;
+#endif
+
+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
+	grsec_enable_log_rwxmaps = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_AUDIT_GROUP
+	grsec_enable_group = 1;
+	grsec_audit_gid = KGIDT_INIT(CONFIG_GRKERNSEC_AUDIT_GID);
+#endif
+#ifdef CONFIG_GRKERNSEC_PTRACE_READEXEC
+	grsec_enable_ptrace_readexec = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR
+	grsec_enable_chdir = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE
+	grsec_enable_harden_ptrace = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_HARDEN_IPC
+	grsec_enable_harden_ipc = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_HARDEN_TTY
+	grsec_enable_harden_tty = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
+	grsec_enable_mount = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_LINK
+	grsec_enable_link = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_BRUTE
+	grsec_enable_brute = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_DMESG
+	grsec_enable_dmesg = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+	grsec_enable_blackhole = 1;
+	grsec_lastack_retries = 4;
+#endif
+#ifdef CONFIG_GRKERNSEC_FIFO
+	grsec_enable_fifo = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_EXECLOG
+	grsec_enable_execlog = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_SETXID
+	grsec_enable_setxid = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_SIGNAL
+	grsec_enable_signal = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_FORKFAIL
+	grsec_enable_forkfail = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_TIME
+	grsec_enable_time = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_RESLOG
+	grsec_resource_logging = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
+	grsec_enable_chroot_findtask = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX
+	grsec_enable_chroot_unix = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT
+	grsec_enable_chroot_mount = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
+	grsec_enable_chroot_fchdir = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT
+	grsec_enable_chroot_shmat = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_AUDIT_PTRACE
+	grsec_enable_audit_ptrace = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE
+	grsec_enable_chroot_double = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT
+	grsec_enable_chroot_pivot = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR
+	grsec_enable_chroot_chdir = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD
+	grsec_enable_chroot_chmod = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD
+	grsec_enable_chroot_mknod = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
+	grsec_enable_chroot_nice = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG
+	grsec_enable_chroot_execlog = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
+	grsec_enable_chroot_caps = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
+	grsec_enable_chroot_rename = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL
+	grsec_enable_chroot_sysctl = 1;
+#endif
+#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
+	grsec_enable_symlinkown = 1;
+	grsec_symlinkown_gid = KGIDT_INIT(CONFIG_GRKERNSEC_SYMLINKOWN_GID);
+#endif
+#ifdef CONFIG_GRKERNSEC_TPE
+	grsec_enable_tpe = 1;
+	grsec_tpe_gid = KGIDT_INIT(CONFIG_GRKERNSEC_TPE_GID);
+#ifdef CONFIG_GRKERNSEC_TPE_ALL
+	grsec_enable_tpe_all = 1;
+#endif
+#endif
+#ifdef CONFIG_GRKERNSEC_SOCKET_ALL
+	grsec_enable_socket_all = 1;
+	grsec_socket_all_gid = KGIDT_INIT(CONFIG_GRKERNSEC_SOCKET_ALL_GID);
+#endif
+#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT
+	grsec_enable_socket_client = 1;
+	grsec_socket_client_gid = KGIDT_INIT(CONFIG_GRKERNSEC_SOCKET_CLIENT_GID);
+#endif
+#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
+	grsec_enable_socket_server = 1;
+	grsec_socket_server_gid = KGIDT_INIT(CONFIG_GRKERNSEC_SOCKET_SERVER_GID);
+#endif
+#endif
+#ifdef CONFIG_GRKERNSEC_DENYUSB_FORCE
+	grsec_deny_new_usb = 1;
+#endif
+
+	return;
+}
diff --git a/grsecurity/grsec_ipc.c b/grsecurity/grsec_ipc.c
new file mode 100644
index 0000000..1773300
--- /dev/null
+++ b/grsecurity/grsec_ipc.c
@@ -0,0 +1,48 @@
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/file.h>
+#include <linux/ipc.h>
+#include <linux/ipc_namespace.h>
+#include <linux/grsecurity.h>
+#include <linux/grinternal.h>
+
+int
+gr_ipc_permitted(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp, int requested_mode, int granted_mode)
+{
+#ifdef CONFIG_GRKERNSEC_HARDEN_IPC
+	int write;
+	int orig_granted_mode;
+	kuid_t euid;
+	kgid_t egid;
+
+	if (!grsec_enable_harden_ipc)
+		return 1;
+
+	euid = current_euid();
+	egid = current_egid();
+
+	write = requested_mode & 00002;
+	orig_granted_mode = ipcp->mode;
+
+	if (uid_eq(euid, ipcp->cuid) || uid_eq(euid, ipcp->uid))
+		orig_granted_mode >>= 6;
+	else {
+		/* if likely wrong permissions, lock to user */
+		if (orig_granted_mode & 0007)
+			orig_granted_mode = 0;
+		/* otherwise do a egid-only check */
+		else if (gid_eq(egid, ipcp->cgid) || gid_eq(egid, ipcp->gid))
+			orig_granted_mode >>= 3;
+		/* otherwise, no access */
+		else
+			orig_granted_mode = 0;
+	}
+	if (!(requested_mode & ~granted_mode & 0007) && (requested_mode & ~orig_granted_mode & 0007) &&
+	    !ns_capable_nolog(ns->user_ns, CAP_IPC_OWNER)) {
+		gr_log_str_int(GR_DONT_AUDIT, GR_IPC_DENIED_MSG, write ? "write" : "read", GR_GLOBAL_UID(ipcp->cuid));
+		return 0;
+	}
+#endif
+	return 1;
+}
diff --git a/grsecurity/grsec_link.c b/grsecurity/grsec_link.c
new file mode 100644
index 0000000..84c44a0
--- /dev/null
+++ b/grsecurity/grsec_link.c
@@ -0,0 +1,65 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/grinternal.h>
+
+int gr_get_symlinkown_enabled(void)
+{
+#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
+	if (grsec_enable_symlinkown && in_group_p(grsec_symlinkown_gid))
+		return 1;
+#endif
+	return 0;
+}
+
+int gr_handle_symlink_owner(const struct path *link, const struct inode *target)
+{
+#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
+	const struct inode *link_inode = d_backing_inode(link->dentry);
+
+	if (target && !uid_eq(link_inode->i_uid, target->i_uid)) {
+		gr_log_fs_int2(GR_DONT_AUDIT, GR_SYMLINKOWNER_MSG, link->dentry, link->mnt, GR_GLOBAL_UID(link_inode->i_uid), GR_GLOBAL_UID(target->i_uid));
+		return 1;
+	}
+#endif
+	return 0;
+}
+
+int
+gr_handle_follow_link(const struct dentry *dentry, const struct vfsmount *mnt)
+{
+#ifdef CONFIG_GRKERNSEC_LINK
+	struct inode *inode = d_backing_inode(dentry);
+	struct inode *parent = d_backing_inode(dentry->d_parent);
+	const struct cred *cred = current_cred();
+
+	if (grsec_enable_link && d_is_symlink(dentry) &&
+	    (parent->i_mode & S_ISVTX) && !uid_eq(parent->i_uid, inode->i_uid) &&
+	    (parent->i_mode & S_IWOTH) && !uid_eq(cred->fsuid, inode->i_uid)) {
+		gr_log_fs_int2(GR_DONT_AUDIT, GR_SYMLINK_MSG, dentry, mnt, GR_GLOBAL_UID(inode->i_uid), GR_GLOBAL_GID(inode->i_gid));
+		return -EACCES;
+	}
+#endif
+	return 0;
+}
+
+int
+gr_handle_hardlink(const struct dentry *dentry,
+		   const struct vfsmount *mnt,
+		   const struct filename *to)
+{
+#ifdef CONFIG_GRKERNSEC_LINK
+	struct inode *inode = d_backing_inode(dentry);
+	const struct cred *cred = current_cred();
+
+	if (grsec_enable_link && !uid_eq(cred->fsuid, inode->i_uid) &&
+	    (!d_is_reg(dentry) || is_privileged_binary(dentry) || 
+	     (inode_permission(inode, MAY_READ | MAY_WRITE))) &&
+	    !capable(CAP_FOWNER) && gr_is_global_nonroot(cred->uid)) {
+		gr_log_fs_int2_str(GR_DONT_AUDIT, GR_HARDLINK_MSG, dentry, mnt, GR_GLOBAL_UID(inode->i_uid), GR_GLOBAL_GID(inode->i_gid), to->name);
+		return -EPERM;
+	}
+#endif
+	return 0;
+}
diff --git a/grsecurity/grsec_log.c b/grsecurity/grsec_log.c
new file mode 100644
index 0000000..a24b338
--- /dev/null
+++ b/grsecurity/grsec_log.c
@@ -0,0 +1,340 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/file.h>
+#include <linux/tty.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/grinternal.h>
+
+#ifdef CONFIG_TREE_PREEMPT_RCU
+#define DISABLE_PREEMPT() preempt_disable()
+#define ENABLE_PREEMPT() preempt_enable()
+#else
+#define DISABLE_PREEMPT()
+#define ENABLE_PREEMPT()
+#endif
+
+#define BEGIN_LOCKS(x) \
+	DISABLE_PREEMPT(); \
+	rcu_read_lock(); \
+	read_lock(&tasklist_lock); \
+	read_lock(&grsec_exec_file_lock); \
+	if (x != GR_DO_AUDIT) \
+		spin_lock(&grsec_alert_lock); \
+	else \
+		spin_lock(&grsec_audit_lock)
+
+#define END_LOCKS(x) \
+	if (x != GR_DO_AUDIT) \
+		spin_unlock(&grsec_alert_lock); \
+	else \
+		spin_unlock(&grsec_audit_lock); \
+	read_unlock(&grsec_exec_file_lock); \
+	read_unlock(&tasklist_lock); \
+	rcu_read_unlock(); \
+	ENABLE_PREEMPT(); \
+	if (x == GR_DONT_AUDIT) \
+		gr_handle_alertkill(current)
+
+enum {
+	FLOODING,
+	NO_FLOODING
+};
+
+extern char *gr_alert_log_fmt;
+extern char *gr_audit_log_fmt;
+extern char *gr_alert_log_buf;
+extern char *gr_audit_log_buf;
+
+static int gr_log_start(int audit)
+{
+	char *loglevel = (audit == GR_DO_AUDIT) ? KERN_INFO : KERN_ALERT;
+	char *fmt = (audit == GR_DO_AUDIT) ? gr_audit_log_fmt : gr_alert_log_fmt;
+	char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
+#if (CONFIG_GRKERNSEC_FLOODTIME > 0 && CONFIG_GRKERNSEC_FLOODBURST > 0)
+	unsigned long curr_secs = get_seconds();
+
+	if (audit == GR_DO_AUDIT)
+		goto set_fmt;
+
+	if (!grsec_alert_wtime || time_after(curr_secs, grsec_alert_wtime + CONFIG_GRKERNSEC_FLOODTIME)) {
+		grsec_alert_wtime = curr_secs;
+		grsec_alert_fyet = 0;
+	} else if (time_before_eq(curr_secs, grsec_alert_wtime + CONFIG_GRKERNSEC_FLOODTIME)
+		    && (grsec_alert_fyet < CONFIG_GRKERNSEC_FLOODBURST)) {
+		grsec_alert_fyet++;
+	} else if (grsec_alert_fyet == CONFIG_GRKERNSEC_FLOODBURST) {
+		grsec_alert_wtime = curr_secs;
+		grsec_alert_fyet++;
+		printk(KERN_ALERT "grsec: more alerts, logging disabled for %d seconds\n", CONFIG_GRKERNSEC_FLOODTIME);
+		return FLOODING;
+	}
+	else return FLOODING;
+
+set_fmt:
+#endif
+	memset(buf, 0, PAGE_SIZE);
+	if (current->signal->curr_ip && gr_acl_is_enabled()) {
+		sprintf(fmt, "%s%s", loglevel, "grsec: From %pI4: (%.64s:%c:%.950s) ");
+		snprintf(buf, PAGE_SIZE - 1, fmt, &current->signal->curr_ip, current->role->rolename, gr_roletype_to_char(), current->acl->filename);
+	} else if (current->signal->curr_ip) {
+		sprintf(fmt, "%s%s", loglevel, "grsec: From %pI4: ");
+		snprintf(buf, PAGE_SIZE - 1, fmt, &current->signal->curr_ip);
+	} else if (gr_acl_is_enabled()) {
+		sprintf(fmt, "%s%s", loglevel, "grsec: (%.64s:%c:%.950s) ");
+		snprintf(buf, PAGE_SIZE - 1, fmt, current->role->rolename, gr_roletype_to_char(), current->acl->filename);
+	} else {
+		sprintf(fmt, "%s%s", loglevel, "grsec: ");
+		strcpy(buf, fmt);
+	}
+
+	return NO_FLOODING;
+}
+
+static void gr_log_middle(int audit, const char *msg, va_list ap)
+	__attribute__ ((format (printf, 2, 0)));
+
+static void gr_log_middle(int audit, const char *msg, va_list ap)
+{
+	char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
+	unsigned int len = strlen(buf);
+
+	vsnprintf(buf + len, PAGE_SIZE - len - 1, msg, ap);
+
+	return;
+}
+
+static void gr_log_middle_varargs(int audit, const char *msg, ...)
+	__attribute__ ((format (printf, 2, 3)));
+
+static void gr_log_middle_varargs(int audit, const char *msg, ...)
+{
+	char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
+	unsigned int len = strlen(buf);
+	va_list ap;
+
+	va_start(ap, msg);
+	vsnprintf(buf + len, PAGE_SIZE - len - 1, msg, ap);
+	va_end(ap);
+
+	return;
+}
+
+static void gr_log_end(int audit, int append_default)
+{
+	char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
+	if (append_default) {
+		struct task_struct *task = current;
+		struct task_struct *parent = task->real_parent;
+		const struct cred *cred = __task_cred(task);
+		const struct cred *pcred = __task_cred(parent);
+		unsigned int len = strlen(buf);
+
+		snprintf(buf + len, PAGE_SIZE - len - 1, DEFAULTSECMSG, gr_task_fullpath(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath(task), parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid));
+	}
+
+	printk("%s\n", buf);
+
+	return;
+}
+
+void gr_log_varargs(int audit, const char *msg, int argtypes, ...)
+{
+	int logtype;
+	char *result = (audit == GR_DO_AUDIT) ? "successful" : "denied";
+	char *str1 = NULL, *str2 = NULL, *str3 = NULL;
+	void *voidptr = NULL;
+	int num1 = 0, num2 = 0;
+	unsigned long ulong1 = 0, ulong2 = 0;
+	struct dentry *dentry = NULL;
+	struct vfsmount *mnt = NULL;
+	struct file *file = NULL;
+	struct task_struct *task = NULL;
+	struct vm_area_struct *vma = NULL;
+	const struct cred *cred, *pcred;
+	va_list ap;
+
+	BEGIN_LOCKS(audit);
+	logtype = gr_log_start(audit);
+	if (logtype == FLOODING) {
+		END_LOCKS(audit);
+		return;
+	}
+	va_start(ap, argtypes);
+	switch (argtypes) {
+	case GR_TTYSNIFF:
+		task = va_arg(ap, struct task_struct *);
+		gr_log_middle_varargs(audit, msg, &task->signal->curr_ip, gr_task_fullpath0(task), task->comm, task_pid_nr(task), gr_parent_task_fullpath0(task), task->real_parent->comm, task_pid_nr(task->real_parent));
+		break;
+	case GR_SYSCTL_HIDDEN:
+		str1 = va_arg(ap, char *);
+		gr_log_middle_varargs(audit, msg, result, str1);
+		break;
+	case GR_RBAC:
+		dentry = va_arg(ap, struct dentry *);
+		mnt = va_arg(ap, struct vfsmount *);
+		gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt));
+		break;
+	case GR_RBAC_STR:
+		dentry = va_arg(ap, struct dentry *);
+		mnt = va_arg(ap, struct vfsmount *);
+		str1 = va_arg(ap, char *);
+		gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1);
+		break;
+	case GR_STR_RBAC:
+		str1 = va_arg(ap, char *);
+		dentry = va_arg(ap, struct dentry *);
+		mnt = va_arg(ap, struct vfsmount *);
+		gr_log_middle_varargs(audit, msg, result, str1, gr_to_filename(dentry, mnt));
+		break;
+	case GR_RBAC_MODE2:
+		dentry = va_arg(ap, struct dentry *);
+		mnt = va_arg(ap, struct vfsmount *);
+		str1 = va_arg(ap, char *);
+		str2 = va_arg(ap, char *);
+		gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1, str2);
+		break;
+	case GR_RBAC_MODE3:
+		dentry = va_arg(ap, struct dentry *);
+		mnt = va_arg(ap, struct vfsmount *);
+		str1 = va_arg(ap, char *);
+		str2 = va_arg(ap, char *);
+		str3 = va_arg(ap, char *);
+		gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1, str2, str3);
+		break;
+	case GR_FILENAME:
+		dentry = va_arg(ap, struct dentry *);
+		mnt = va_arg(ap, struct vfsmount *);
+		gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt));
+		break;
+	case GR_STR_FILENAME:
+		str1 = va_arg(ap, char *);
+		dentry = va_arg(ap, struct dentry *);
+		mnt = va_arg(ap, struct vfsmount *);
+		gr_log_middle_varargs(audit, msg, str1, gr_to_filename(dentry, mnt));
+		break;
+	case GR_FILENAME_STR:
+		dentry = va_arg(ap, struct dentry *);
+		mnt = va_arg(ap, struct vfsmount *);
+		str1 = va_arg(ap, char *);
+		gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), str1);
+		break;
+	case GR_FILENAME_TWO_INT:
+		dentry = va_arg(ap, struct dentry *);
+		mnt = va_arg(ap, struct vfsmount *);
+		num1 = va_arg(ap, int);
+		num2 = va_arg(ap, int);
+		gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), num1, num2);
+		break;
+	case GR_FILENAME_TWO_INT_STR:
+		dentry = va_arg(ap, struct dentry *);
+		mnt = va_arg(ap, struct vfsmount *);
+		num1 = va_arg(ap, int);
+		num2 = va_arg(ap, int);
+		str1 = va_arg(ap, char *);
+		gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), num1, num2, str1);
+		break;
+	case GR_TEXTREL:
+		str1 = va_arg(ap, char *);
+		file = va_arg(ap, struct file *);
+		ulong1 = va_arg(ap, unsigned long);
+		ulong2 = va_arg(ap, unsigned long);
+		gr_log_middle_varargs(audit, msg, str1, file ? gr_to_filename(file->f_path.dentry, file->f_path.mnt) : "<anonymous mapping>", ulong1, ulong2);
+		break;
+	case GR_PTRACE:
+		task = va_arg(ap, struct task_struct *);
+		gr_log_middle_varargs(audit, msg, task->exec_file ? gr_to_filename(task->exec_file->f_path.dentry, task->exec_file->f_path.mnt) : "(none)", task->comm, task_pid_nr(task));
+		break;
+	case GR_RESOURCE:
+		task = va_arg(ap, struct task_struct *);
+		cred = __task_cred(task);
+		pcred = __task_cred(task->real_parent);
+		ulong1 = va_arg(ap, unsigned long);
+		str1 = va_arg(ap, char *);
+		ulong2 = va_arg(ap, unsigned long);
+		gr_log_middle_varargs(audit, msg, ulong1, str1, ulong2, gr_task_fullpath(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath(task), task->real_parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid));
+		break;
+	case GR_CAP:
+		task = va_arg(ap, struct task_struct *);
+		cred = __task_cred(task);
+		pcred = __task_cred(task->real_parent);
+		str1 = va_arg(ap, char *);
+		gr_log_middle_varargs(audit, msg, str1, gr_task_fullpath(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath(task), task->real_parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid));
+		break;
+	case GR_SIG:
+		str1 = va_arg(ap, char *);
+		voidptr = va_arg(ap, void *);
+		gr_log_middle_varargs(audit, msg, str1, voidptr);
+		break;
+	case GR_SIG2:
+		task = va_arg(ap, struct task_struct *);
+		cred = __task_cred(task);
+		pcred = __task_cred(task->real_parent);
+		num1 = va_arg(ap, int);
+		gr_log_middle_varargs(audit, msg, num1, gr_task_fullpath0(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath0(task), task->real_parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid));
+		break;
+	case GR_CRASH1:
+		task = va_arg(ap, struct task_struct *);
+		cred = __task_cred(task);
+		pcred = __task_cred(task->real_parent);
+		ulong1 = va_arg(ap, unsigned long);
+		gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath(task), task->real_parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid), GR_GLOBAL_UID(cred->uid), ulong1);
+		break;
+	case GR_CRASH2:
+		task = va_arg(ap, struct task_struct *);
+		cred = __task_cred(task);
+		pcred = __task_cred(task->real_parent);
+		ulong1 = va_arg(ap, unsigned long);
+		gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath(task), task->real_parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid), ulong1);
+		break;
+	case GR_RWXMAP:
+		file = va_arg(ap, struct file *);
+		gr_log_middle_varargs(audit, msg, file ? gr_to_filename(file->f_path.dentry, file->f_path.mnt) : "<anonymous mapping>");
+		break;
+	case GR_RWXMAPVMA:
+		vma = va_arg(ap, struct vm_area_struct *);
+		if (vma->vm_file)
+			str1 = gr_to_filename(vma->vm_file->f_path.dentry, vma->vm_file->f_path.mnt);
+		else if (vma->vm_flags & (VM_GROWSDOWN | VM_GROWSUP))
+			str1 = "<stack>";
+		else if (vma->vm_start <= current->mm->brk &&
+			 vma->vm_end >= current->mm->start_brk)
+			str1 = "<heap>";
+		else
+			str1 = "<anonymous mapping>";
+		gr_log_middle_varargs(audit, msg, str1);
+		break;
+	case GR_PSACCT:
+		{
+			unsigned int wday, cday;
+			__u8 whr, chr;
+			__u8 wmin, cmin;
+			__u8 wsec, csec;
+
+			task = va_arg(ap, struct task_struct *);
+			wday = va_arg(ap, unsigned int);
+			cday = va_arg(ap, unsigned int);
+			whr = va_arg(ap, int);
+			chr = va_arg(ap, int);
+			wmin = va_arg(ap, int);
+			cmin = va_arg(ap, int);
+			wsec = va_arg(ap, int);
+			csec = va_arg(ap, int);
+			ulong1 = va_arg(ap, unsigned long);
+			cred = __task_cred(task);
+			pcred = __task_cred(task->real_parent);
+
+			gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task_pid_nr(task), &task->signal->curr_ip, tty_name(task->signal->tty), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), wday, whr, wmin, wsec, cday, chr, cmin, csec, (task->flags & PF_SIGNALED) ? "killed by signal" : "exited", ulong1, gr_parent_task_fullpath(task), task->real_parent->comm, task_pid_nr(task->real_parent), &task->real_parent->signal->curr_ip, tty_name(task->real_parent->signal->tty), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid));
+		}
+		break;
+	default:
+		gr_log_middle(audit, msg, ap);
+	}
+	va_end(ap);
+	// these don't need DEFAULTSECARGS printed on the end
+	if (argtypes == GR_CRASH1 || argtypes == GR_CRASH2)
+		gr_log_end(audit, 0);
+	else
+		gr_log_end(audit, 1);
+	END_LOCKS(audit);
+}
diff --git a/grsecurity/grsec_mem.c b/grsecurity/grsec_mem.c
new file mode 100644
index 0000000..0e39d8c
--- /dev/null
+++ b/grsecurity/grsec_mem.c
@@ -0,0 +1,48 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/mman.h>
+#include <linux/module.h>
+#include <linux/grinternal.h>
+
+void gr_handle_msr_write(void)
+{
+	gr_log_noargs(GR_DONT_AUDIT, GR_MSRWRITE_MSG);
+	return;
+}
+EXPORT_SYMBOL_GPL(gr_handle_msr_write);
+
+void
+gr_handle_ioperm(void)
+{
+	gr_log_noargs(GR_DONT_AUDIT, GR_IOPERM_MSG);
+	return;
+}
+
+void
+gr_handle_iopl(void)
+{
+	gr_log_noargs(GR_DONT_AUDIT, GR_IOPL_MSG);
+	return;
+}
+
+void
+gr_handle_mem_readwrite(u64 from, u64 to)
+{
+	gr_log_two_u64(GR_DONT_AUDIT, GR_MEM_READWRITE_MSG, from, to);
+	return;
+}
+
+void
+gr_handle_vm86(void)
+{
+	gr_log_noargs(GR_DONT_AUDIT, GR_VM86_MSG);
+	return;
+}
+
+void
+gr_log_badprocpid(const char *entry)
+{
+	gr_log_str(GR_DONT_AUDIT, GR_BADPROCPID_MSG, entry);
+	return;
+}
diff --git a/grsecurity/grsec_mount.c b/grsecurity/grsec_mount.c
new file mode 100644
index 0000000..fe02bf4
--- /dev/null
+++ b/grsecurity/grsec_mount.c
@@ -0,0 +1,65 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/mount.h>
+#include <linux/major.h>
+#include <linux/grsecurity.h>
+#include <linux/grinternal.h>
+
+void
+gr_log_remount(const char *devname, const int retval)
+{
+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
+	if (grsec_enable_mount && (retval >= 0))
+		gr_log_str(GR_DO_AUDIT, GR_REMOUNT_AUDIT_MSG, devname ? devname : "none");
+#endif
+	return;
+}
+
+void
+gr_log_unmount(const char *devname, const int retval)
+{
+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
+	if (grsec_enable_mount && (retval >= 0))
+		gr_log_str(GR_DO_AUDIT, GR_UNMOUNT_AUDIT_MSG, devname ? devname : "none");
+#endif
+	return;
+}
+
+void
+gr_log_mount(const char *from, struct path *to, const int retval)
+{
+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
+	if (grsec_enable_mount && (retval >= 0))
+		gr_log_str_fs(GR_DO_AUDIT, GR_MOUNT_AUDIT_MSG, from ? from : "none", to->dentry, to->mnt);
+#endif
+	return;
+}
+
+int
+gr_handle_rofs_mount(struct dentry *dentry, struct vfsmount *mnt, int mnt_flags)
+{
+#ifdef CONFIG_GRKERNSEC_ROFS
+	if (grsec_enable_rofs && !(mnt_flags & MNT_READONLY)) {
+		gr_log_fs_generic(GR_DO_AUDIT, GR_ROFS_MOUNT_MSG, dentry, mnt);
+		return -EPERM;
+	} else
+		return 0;
+#endif
+	return 0;
+}
+
+int
+gr_handle_rofs_blockwrite(struct dentry *dentry, struct vfsmount *mnt, int acc_mode)
+{
+#ifdef CONFIG_GRKERNSEC_ROFS
+	struct inode *inode = d_backing_inode(dentry);
+
+	if (grsec_enable_rofs && (acc_mode & MAY_WRITE) &&
+	    inode && (S_ISBLK(inode->i_mode) || (S_ISCHR(inode->i_mode) && imajor(inode) == RAW_MAJOR))) {
+		gr_log_fs_generic(GR_DO_AUDIT, GR_ROFS_BLOCKWRITE_MSG, dentry, mnt);
+		return -EPERM;
+	} else
+		return 0;
+#endif
+	return 0;
+}
diff --git a/grsecurity/grsec_pax.c b/grsecurity/grsec_pax.c
new file mode 100644
index 0000000..2ad7b96
--- /dev/null
+++ b/grsecurity/grsec_pax.c
@@ -0,0 +1,47 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/file.h>
+#include <linux/grinternal.h>
+#include <linux/grsecurity.h>
+
+void
+gr_log_textrel(struct vm_area_struct * vma, bool is_textrel_rw)
+{
+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
+	if (grsec_enable_log_rwxmaps)
+		gr_log_textrel_ulong_ulong(GR_DONT_AUDIT, GR_TEXTREL_AUDIT_MSG,
+			is_textrel_rw ? "executable to writable" : "writable to executable",
+			vma->vm_file, vma->vm_start, vma->vm_pgoff);
+#endif
+	return;
+}
+
+void gr_log_ptgnustack(struct file *file)
+{
+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
+	if (grsec_enable_log_rwxmaps)
+		gr_log_rwxmap(GR_DONT_AUDIT, GR_PTGNUSTACK_MSG, file);
+#endif
+	return;
+}
+
+void
+gr_log_rwxmmap(struct file *file)
+{
+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
+	if (grsec_enable_log_rwxmaps)
+		gr_log_rwxmap(GR_DONT_AUDIT, GR_RWXMMAP_MSG, file);
+#endif
+	return;
+}
+
+void
+gr_log_rwxmprotect(struct vm_area_struct *vma)
+{
+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
+	if (grsec_enable_log_rwxmaps)
+		gr_log_rwxmap_vma(GR_DONT_AUDIT, GR_RWXMPROTECT_MSG, vma);
+#endif
+	return;
+}
diff --git a/grsecurity/grsec_proc.c b/grsecurity/grsec_proc.c
new file mode 100644
index 0000000..2005a3a
--- /dev/null
+++ b/grsecurity/grsec_proc.c
@@ -0,0 +1,20 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/grsecurity.h>
+#include <linux/grinternal.h>
+
+int gr_proc_is_restricted(void)
+{
+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+	const struct cred *cred = current_cred();
+#endif
+
+#ifdef CONFIG_GRKERNSEC_PROC_USER
+	if (!uid_eq(cred->fsuid, GLOBAL_ROOT_UID))
+		return -EACCES;
+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+	if (!uid_eq(cred->fsuid, GLOBAL_ROOT_UID) && !in_group_p(grsec_proc_gid))
+		return -EACCES;
+#endif
+	return 0;
+}
diff --git a/grsecurity/grsec_ptrace.c b/grsecurity/grsec_ptrace.c
new file mode 100644
index 0000000..304c518
--- /dev/null
+++ b/grsecurity/grsec_ptrace.c
@@ -0,0 +1,30 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/grinternal.h>
+#include <linux/security.h>
+
+void
+gr_audit_ptrace(struct task_struct *task)
+{
+#ifdef CONFIG_GRKERNSEC_AUDIT_PTRACE
+	if (grsec_enable_audit_ptrace)
+		gr_log_ptrace(GR_DO_AUDIT, GR_PTRACE_AUDIT_MSG, task);
+#endif
+	return;
+}
+
+int
+gr_ptrace_readexec(struct file *file, int unsafe_flags)
+{
+#ifdef CONFIG_GRKERNSEC_PTRACE_READEXEC
+	const struct dentry *dentry = file->f_path.dentry;
+	const struct vfsmount *mnt = file->f_path.mnt;
+
+	if (grsec_enable_ptrace_readexec && (unsafe_flags & LSM_UNSAFE_PTRACE) && 
+	    (inode_permission(d_backing_inode(dentry), MAY_READ) || !gr_acl_handle_open(dentry, mnt, MAY_READ))) {
+		gr_log_fs_generic(GR_DONT_AUDIT, GR_PTRACE_READEXEC_MSG, dentry, mnt);
+		return -EACCES;
+	}
+#endif
+	return 0;
+}
diff --git a/grsecurity/grsec_sig.c b/grsecurity/grsec_sig.c
new file mode 100644
index 0000000..f072c9d
--- /dev/null
+++ b/grsecurity/grsec_sig.c
@@ -0,0 +1,248 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/delay.h>
+#include <linux/grsecurity.h>
+#include <linux/grinternal.h>
+#include <linux/hardirq.h>
+#include <asm/pgtable.h>
+
+char *signames[] = {
+	[SIGSEGV] = "Segmentation fault",
+	[SIGILL] = "Illegal instruction",
+	[SIGABRT] = "Abort",
+	[SIGBUS] = "Invalid alignment/Bus error"
+};
+
+void
+gr_log_signal(const int sig, const void *addr, const struct task_struct *t)
+{
+#ifdef CONFIG_GRKERNSEC_SIGNAL
+	if (grsec_enable_signal && ((sig == SIGSEGV) || (sig == SIGILL) ||
+				    (sig == SIGABRT) || (sig == SIGBUS))) {
+		if (task_pid_nr(t) == task_pid_nr(current)) {
+			gr_log_sig_addr(GR_DONT_AUDIT_GOOD, GR_UNISIGLOG_MSG, signames[sig], addr);
+		} else {
+			gr_log_sig_task(GR_DONT_AUDIT_GOOD, GR_DUALSIGLOG_MSG, t, sig);
+		}
+	}
+#endif
+	return;
+}
+
+int
+gr_handle_signal(const struct task_struct *p, const int sig)
+{
+#ifdef CONFIG_GRKERNSEC
+	/* ignore the 0 signal for protected task checks */
+	if (task_pid_nr(current) > 1 && sig && gr_check_protected_task(p)) {
+		gr_log_sig_task(GR_DONT_AUDIT, GR_SIG_ACL_MSG, p, sig);
+		return -EPERM;
+	} else if (gr_pid_is_chrooted((struct task_struct *)p)) {
+		return -EPERM;
+	}
+#endif
+	return 0;
+}
+
+#ifdef CONFIG_GRKERNSEC
+extern int specific_send_sig_info(int sig, struct siginfo *info, struct task_struct *t);
+
+int gr_fake_force_sig(int sig, struct task_struct *t)
+{
+	unsigned long int flags;
+	int ret, blocked, ignored;
+	struct k_sigaction *action;
+
+	spin_lock_irqsave(&t->sighand->siglock, flags);
+	action = &t->sighand->action[sig-1];
+	ignored = action->sa.sa_handler == SIG_IGN;
+	blocked = sigismember(&t->blocked, sig);
+	if (blocked || ignored) {
+		action->sa.sa_handler = SIG_DFL;
+		if (blocked) {
+			sigdelset(&t->blocked, sig);
+			recalc_sigpending_and_wake(t);
+		}
+	}
+	if (action->sa.sa_handler == SIG_DFL)
+		t->signal->flags &= ~SIGNAL_UNKILLABLE;
+	ret = specific_send_sig_info(sig, SEND_SIG_PRIV, t);
+
+	spin_unlock_irqrestore(&t->sighand->siglock, flags);
+
+	return ret;
+}
+#endif
+
+#define GR_USER_BAN_TIME (15 * 60)
+#define GR_DAEMON_BRUTE_TIME (30 * 60)
+
+void gr_handle_brute_attach(int dumpable)
+{
+#ifdef CONFIG_GRKERNSEC_BRUTE
+	struct task_struct *p = current;
+	kuid_t uid = GLOBAL_ROOT_UID;
+	int is_priv = 0;
+	int daemon = 0;
+
+	if (!grsec_enable_brute)
+		return;
+
+	if (is_privileged_binary(p->mm->exe_file->f_path.dentry))
+		is_priv = 1;
+
+	rcu_read_lock();
+	read_lock(&tasklist_lock);
+	read_lock(&grsec_exec_file_lock);
+	if (!is_priv && p->real_parent && gr_is_same_file(p->real_parent->exec_file, p->exec_file)) {
+		p->real_parent->brute_expires = get_seconds() + GR_DAEMON_BRUTE_TIME;
+		p->real_parent->brute = 1;
+		daemon = 1;
+	} else {
+		const struct cred *cred = __task_cred(p), *cred2;
+		struct task_struct *tsk, *tsk2;
+
+		if (dumpable != SUID_DUMP_USER && gr_is_global_nonroot(cred->uid)) {
+			struct user_struct *user;
+
+			uid = cred->uid;
+
+			/* this is put upon execution past expiration */
+			user = find_user(uid);
+			if (user == NULL)
+				goto unlock;
+			user->sugid_banned = 1;
+			user->sugid_ban_expires = get_seconds() + GR_USER_BAN_TIME;
+			if (user->sugid_ban_expires == ~0UL)
+				user->sugid_ban_expires--;
+
+			/* only kill other threads of the same binary, from the same user */
+			do_each_thread(tsk2, tsk) {
+				cred2 = __task_cred(tsk);
+				if (tsk != p && uid_eq(cred2->uid, uid) && gr_is_same_file(tsk->exec_file, p->exec_file))
+					gr_fake_force_sig(SIGKILL, tsk);
+			} while_each_thread(tsk2, tsk);
+		}
+	}
+unlock:
+	read_unlock(&grsec_exec_file_lock);
+	read_unlock(&tasklist_lock);
+	rcu_read_unlock();
+
+	if (gr_is_global_nonroot(uid))
+		gr_log_fs_int2(GR_DONT_AUDIT, GR_BRUTE_SUID_MSG, p->exec_file->f_path.dentry, p->exec_file->f_path.mnt, GR_GLOBAL_UID(uid), GR_USER_BAN_TIME / 60);
+	else if (daemon)
+		gr_log_noargs(GR_DONT_AUDIT, GR_BRUTE_DAEMON_MSG);
+
+#endif
+	return;
+}
+
+void gr_handle_brute_check(void)
+{
+#ifdef CONFIG_GRKERNSEC_BRUTE
+	struct task_struct *p = current;
+
+	if (unlikely(p->brute)) {
+		if (!grsec_enable_brute)
+			p->brute = 0;
+		else if (time_before(get_seconds(), p->brute_expires))
+			msleep(30 * 1000);
+	}
+#endif
+	return;
+}
+
+void gr_handle_kernel_exploit(void)
+{
+#ifdef CONFIG_GRKERNSEC_KERN_LOCKOUT
+	static unsigned int num_banned_users __read_only;
+	const struct cred *cred;
+	struct task_struct *tsk, *tsk2;
+	struct user_struct *user;
+	kuid_t uid;
+
+	if (in_irq() || in_serving_softirq() || in_nmi())
+		panic("grsec: halting the system due to suspicious kernel crash caused in interrupt context");
+
+	uid = current_uid();
+
+	if (gr_is_global_root(uid))
+		panic("grsec: halting the system due to suspicious kernel crash caused by root");
+	else {
+		pax_open_kernel();
+		num_banned_users++;
+		pax_close_kernel();
+		if (num_banned_users > 8)
+			panic("grsec: halting the system due to suspicious kernel crash caused by a large number of different users");
+
+		/* kill all the processes of this user, hold a reference
+		   to their creds struct, and prevent them from creating
+		   another process until system reset
+		*/
+		printk(KERN_ALERT "grsec: banning user with uid %u until system restart for suspicious kernel crash\n",
+			GR_GLOBAL_UID(uid));
+		/* we intentionally leak this ref */
+		user = get_uid(current->cred->user);
+		if (user)
+			user->kernel_banned = 1;
+
+		/* kill all processes of this user */
+		read_lock(&tasklist_lock);
+		do_each_thread(tsk2, tsk) {
+			cred = __task_cred(tsk);
+			if (uid_eq(cred->uid, uid))
+				gr_fake_force_sig(SIGKILL, tsk);
+		} while_each_thread(tsk2, tsk);
+		read_unlock(&tasklist_lock); 
+	}
+#endif
+}
+
+#ifdef CONFIG_GRKERNSEC_BRUTE
+static bool sugid_ban_expired(struct user_struct *user)
+{
+	if (user->sugid_ban_expires != ~0UL && time_after_eq(get_seconds(), user->sugid_ban_expires)) {
+		user->sugid_banned = 0;
+		user->sugid_ban_expires = 0;
+		free_uid(user);
+		return true;
+	}
+
+	return false;
+}
+#endif
+
+int gr_process_kernel_exec_ban(void)
+{
+#ifdef CONFIG_GRKERNSEC_KERN_LOCKOUT
+	if (unlikely(current->cred->user->kernel_banned))
+		return -EPERM;
+#endif
+	return 0;
+}
+
+int gr_process_kernel_setuid_ban(struct user_struct *user)
+{
+#ifdef CONFIG_GRKERNSEC_KERN_LOCKOUT
+	if (unlikely(user->kernel_banned))
+		gr_fake_force_sig(SIGKILL, current);
+#endif
+	return 0;
+}
+
+int gr_process_sugid_exec_ban(const struct linux_binprm *bprm)
+{
+#ifdef CONFIG_GRKERNSEC_BRUTE
+	struct user_struct *user = current->cred->user;
+	if (unlikely(user->sugid_banned)) {
+		if (sugid_ban_expired(user))
+			return 0;
+		/* disallow execution of suid/sgid binaries only */
+		else if (is_privileged_binary(bprm->file->f_path.dentry))
+			return -EPERM;
+	}
+#endif
+	return 0;
+}
diff --git a/grsecurity/grsec_sock.c b/grsecurity/grsec_sock.c
new file mode 100644
index 0000000..3cdd946
--- /dev/null
+++ b/grsecurity/grsec_sock.c
@@ -0,0 +1,244 @@
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/file.h>
+#include <linux/net.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <net/sock.h>
+#include <net/inet_sock.h>
+#include <linux/grsecurity.h>
+#include <linux/grinternal.h>
+#include <linux/gracl.h>
+
+extern int gr_search_udp_recvmsg(struct sock *sk, const struct sk_buff *skb);
+extern int gr_search_udp_sendmsg(struct sock *sk, struct sockaddr_in *addr);
+
+EXPORT_SYMBOL_GPL(gr_search_udp_recvmsg);
+EXPORT_SYMBOL_GPL(gr_search_udp_sendmsg);
+
+#ifdef CONFIG_UNIX_MODULE
+EXPORT_SYMBOL_GPL(gr_acl_handle_unix);
+EXPORT_SYMBOL_GPL(gr_acl_handle_mknod);
+EXPORT_SYMBOL_GPL(gr_handle_chroot_unix);
+EXPORT_SYMBOL_GPL(gr_handle_create);
+#endif
+
+#ifdef CONFIG_GRKERNSEC
+#define gr_conn_table_size 32749
+struct conn_table_entry {
+	struct conn_table_entry *next;
+	struct signal_struct *sig;
+};
+
+struct conn_table_entry *gr_conn_table[gr_conn_table_size];
+DEFINE_SPINLOCK(gr_conn_table_lock);
+
+extern const char * gr_socktype_to_name(unsigned char type);
+extern const char * gr_proto_to_name(unsigned char proto);
+extern const char * gr_sockfamily_to_name(unsigned char family);
+
+static int 
+conn_hash(__u32 saddr, __u32 daddr, __u16 sport, __u16 dport, unsigned int size)
+{
+	return ((daddr + saddr + (sport << 8) + (dport << 16)) % size);
+}
+
+static int
+conn_match(const struct signal_struct *sig, __u32 saddr, __u32 daddr, 
+	   __u16 sport, __u16 dport)
+{
+	if (unlikely(sig->gr_saddr == saddr && sig->gr_daddr == daddr &&
+		     sig->gr_sport == sport && sig->gr_dport == dport))
+		return 1;
+	else
+		return 0;
+}
+
+static void gr_add_to_task_ip_table_nolock(struct signal_struct *sig, struct conn_table_entry *newent)
+{
+	struct conn_table_entry **match;
+	unsigned int index;
+
+	index = conn_hash(sig->gr_saddr, sig->gr_daddr, 
+			  sig->gr_sport, sig->gr_dport, 
+			  gr_conn_table_size);
+
+	newent->sig = sig;
+	
+	match = &gr_conn_table[index];
+	newent->next = *match;
+	*match = newent;
+
+	return;
+}
+
+static void gr_del_task_from_ip_table_nolock(struct signal_struct *sig)
+{
+	struct conn_table_entry *match, *last = NULL;
+	unsigned int index;
+
+	index = conn_hash(sig->gr_saddr, sig->gr_daddr, 
+			  sig->gr_sport, sig->gr_dport, 
+			  gr_conn_table_size);
+
+	match = gr_conn_table[index];
+	while (match && !conn_match(match->sig, 
+		sig->gr_saddr, sig->gr_daddr, sig->gr_sport, 
+		sig->gr_dport)) {
+		last = match;
+		match = match->next;
+	}
+
+	if (match) {
+		if (last)
+			last->next = match->next;
+		else
+			gr_conn_table[index] = NULL;
+		kfree(match);
+	}
+
+	return;
+}
+
+static struct signal_struct * gr_lookup_task_ip_table(__u32 saddr, __u32 daddr,
+					     __u16 sport, __u16 dport)
+{
+	struct conn_table_entry *match;
+	unsigned int index;
+
+	index = conn_hash(saddr, daddr, sport, dport, gr_conn_table_size);
+
+	match = gr_conn_table[index];
+	while (match && !conn_match(match->sig, saddr, daddr, sport, dport))
+		match = match->next;
+
+	if (match)
+		return match->sig;
+	else
+		return NULL;
+}
+
+#endif
+
+void gr_update_task_in_ip_table(const struct inet_sock *inet)
+{
+#ifdef CONFIG_GRKERNSEC
+	struct signal_struct *sig = current->signal;
+	struct conn_table_entry *newent;
+
+	newent = kmalloc(sizeof(struct conn_table_entry), GFP_ATOMIC);
+	if (newent == NULL)
+		return;
+	/* no bh lock needed since we are called with bh disabled */
+	spin_lock(&gr_conn_table_lock);
+	gr_del_task_from_ip_table_nolock(sig);
+	sig->gr_saddr = inet->inet_rcv_saddr;
+	sig->gr_daddr = inet->inet_daddr;
+	sig->gr_sport = inet->inet_sport;
+	sig->gr_dport = inet->inet_dport;
+	gr_add_to_task_ip_table_nolock(sig, newent);
+	spin_unlock(&gr_conn_table_lock);
+#endif
+	return;
+}
+
+void gr_del_task_from_ip_table(struct task_struct *task)
+{
+#ifdef CONFIG_GRKERNSEC
+	spin_lock_bh(&gr_conn_table_lock);
+	gr_del_task_from_ip_table_nolock(task->signal);
+	spin_unlock_bh(&gr_conn_table_lock);
+#endif
+	return;
+}
+
+void
+gr_attach_curr_ip(const struct sock *sk)
+{
+#ifdef CONFIG_GRKERNSEC
+	struct signal_struct *p, *set;
+	const struct inet_sock *inet = inet_sk(sk);	
+
+	if (unlikely(sk->sk_protocol != IPPROTO_TCP))
+		return;
+
+	set = current->signal;
+
+	spin_lock_bh(&gr_conn_table_lock);
+	p = gr_lookup_task_ip_table(inet->inet_daddr, inet->inet_rcv_saddr,
+				    inet->inet_dport, inet->inet_sport);
+	if (unlikely(p != NULL)) {
+		set->curr_ip = p->curr_ip;
+		set->used_accept = 1;
+		gr_del_task_from_ip_table_nolock(p);
+		spin_unlock_bh(&gr_conn_table_lock);
+		return;
+	}
+	spin_unlock_bh(&gr_conn_table_lock);
+
+	set->curr_ip = inet->inet_daddr;
+	set->used_accept = 1;
+#endif
+	return;
+}
+
+int
+gr_handle_sock_all(const int family, const int type, const int protocol)
+{
+#ifdef CONFIG_GRKERNSEC_SOCKET_ALL
+	if (grsec_enable_socket_all && in_group_p(grsec_socket_all_gid) &&
+	    (family != AF_UNIX)) {
+		if (family == AF_INET)
+			gr_log_str3(GR_DONT_AUDIT, GR_SOCK_MSG, gr_sockfamily_to_name(family), gr_socktype_to_name(type), gr_proto_to_name(protocol));
+		else
+			gr_log_str2_int(GR_DONT_AUDIT, GR_SOCK_NOINET_MSG, gr_sockfamily_to_name(family), gr_socktype_to_name(type), protocol);
+		return -EACCES;
+	}
+#endif
+	return 0;
+}
+
+int
+gr_handle_sock_server(const struct sockaddr *sck)
+{
+#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
+	if (grsec_enable_socket_server &&
+	    in_group_p(grsec_socket_server_gid) &&
+	    sck && (sck->sa_family != AF_UNIX) &&
+	    (sck->sa_family != AF_LOCAL)) {
+		gr_log_noargs(GR_DONT_AUDIT, GR_BIND_MSG);
+		return -EACCES;
+	}
+#endif
+	return 0;
+}
+
+int
+gr_handle_sock_server_other(const struct sock *sck)
+{
+#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
+	if (grsec_enable_socket_server &&
+	    in_group_p(grsec_socket_server_gid) &&
+	    sck && (sck->sk_family != AF_UNIX) &&
+	    (sck->sk_family != AF_LOCAL)) {
+		gr_log_noargs(GR_DONT_AUDIT, GR_BIND_MSG);
+		return -EACCES;
+	}
+#endif
+	return 0;
+}
+
+int
+gr_handle_sock_client(const struct sockaddr *sck)
+{
+#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT
+	if (grsec_enable_socket_client && in_group_p(grsec_socket_client_gid) &&
+	    sck && (sck->sa_family != AF_UNIX) &&
+	    (sck->sa_family != AF_LOCAL)) {
+		gr_log_noargs(GR_DONT_AUDIT, GR_CONNECT_MSG);
+		return -EACCES;
+	}
+#endif
+	return 0;
+}
diff --git a/grsecurity/grsec_sysctl.c b/grsecurity/grsec_sysctl.c
new file mode 100644
index 0000000..4f673f8
--- /dev/null
+++ b/grsecurity/grsec_sysctl.c
@@ -0,0 +1,497 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/sysctl.h>
+#include <linux/grsecurity.h>
+#include <linux/grinternal.h>
+
+int
+gr_handle_sysctl_mod(const char *dirname, const char *name, const int op)
+{
+#ifdef CONFIG_GRKERNSEC_SYSCTL
+	if (dirname == NULL || name == NULL)
+		return 0;
+	if (!strcmp(dirname, "grsecurity") && grsec_lock && (op & MAY_WRITE)) {
+		gr_log_str(GR_DONT_AUDIT, GR_SYSCTL_MSG, name);
+		return -EACCES;
+	}
+#endif
+	return 0;
+}
+
+#if defined(CONFIG_GRKERNSEC_ROFS) || defined(CONFIG_GRKERNSEC_DENYUSB)
+static int __maybe_unused __read_only one = 1;
+#endif
+
+#if defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_ROFS) || \
+	defined(CONFIG_GRKERNSEC_DENYUSB)
+struct ctl_table grsecurity_table[] = {
+#ifdef CONFIG_GRKERNSEC_SYSCTL
+#ifdef CONFIG_GRKERNSEC_SYSCTL_DISTRO
+#ifdef CONFIG_GRKERNSEC_IO
+	{
+		.procname	= "disable_priv_io",
+		.data		= &grsec_disable_privio,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#endif
+#ifdef CONFIG_GRKERNSEC_LINK
+	{
+		.procname	= "linking_restrictions",
+		.data		= &grsec_enable_link,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
+	{
+		.procname	= "enforce_symlinksifowner",
+		.data		= &grsec_enable_symlinkown,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+	{
+		.procname	= "symlinkown_gid",
+		.data		= &grsec_symlinkown_gid,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_BRUTE
+	{
+		.procname	= "deter_bruteforce",
+		.data		= &grsec_enable_brute,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_FIFO
+	{
+		.procname	= "fifo_restrictions",
+		.data		= &grsec_enable_fifo,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_PTRACE_READEXEC
+	{
+		.procname	= "ptrace_readexec",
+		.data		= &grsec_enable_ptrace_readexec,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_SETXID
+	{
+		.procname	= "consistent_setxid",
+		.data		= &grsec_enable_setxid,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+	{
+		.procname	= "ip_blackhole",
+		.data		= &grsec_enable_blackhole,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+	{
+		.procname	= "lastack_retries",
+		.data		= &grsec_lastack_retries,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_EXECLOG
+	{
+		.procname	= "exec_logging",
+		.data		= &grsec_enable_execlog,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
+	{
+		.procname	= "rwxmap_logging",
+		.data		= &grsec_enable_log_rwxmaps,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_SIGNAL
+	{
+		.procname	= "signal_logging",
+		.data		= &grsec_enable_signal,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_FORKFAIL
+	{
+		.procname	= "forkfail_logging",
+		.data		= &grsec_enable_forkfail,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_TIME
+	{
+		.procname	= "timechange_logging",
+		.data		= &grsec_enable_time,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT
+	{
+		.procname	= "chroot_deny_shmat",
+		.data		= &grsec_enable_chroot_shmat,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX
+	{
+		.procname	= "chroot_deny_unix",
+		.data		= &grsec_enable_chroot_unix,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT
+	{
+		.procname	= "chroot_deny_mount",
+		.data		= &grsec_enable_chroot_mount,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
+	{
+		.procname	= "chroot_deny_fchdir",
+		.data		= &grsec_enable_chroot_fchdir,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE
+	{
+		.procname	= "chroot_deny_chroot",
+		.data		= &grsec_enable_chroot_double,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT
+	{
+		.procname	= "chroot_deny_pivot",
+		.data		= &grsec_enable_chroot_pivot,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR
+	{
+		.procname	= "chroot_enforce_chdir",
+		.data		= &grsec_enable_chroot_chdir,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD
+	{
+		.procname	= "chroot_deny_chmod",
+		.data		= &grsec_enable_chroot_chmod,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD
+	{
+		.procname	= "chroot_deny_mknod",
+		.data		= &grsec_enable_chroot_mknod,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
+	{
+		.procname	= "chroot_restrict_nice",
+		.data		= &grsec_enable_chroot_nice,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG
+	{
+		.procname	= "chroot_execlog",
+		.data		= &grsec_enable_chroot_execlog,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
+	{
+		.procname	= "chroot_caps",
+		.data		= &grsec_enable_chroot_caps,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
+	{
+		.procname	= "chroot_deny_bad_rename",
+		.data		= &grsec_enable_chroot_rename,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL
+	{
+		.procname	= "chroot_deny_sysctl",
+		.data		= &grsec_enable_chroot_sysctl,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_TPE
+	{
+		.procname	= "tpe",
+		.data		= &grsec_enable_tpe,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+	{
+		.procname	= "tpe_gid",
+		.data		= &grsec_tpe_gid,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_TPE_INVERT
+	{
+		.procname	= "tpe_invert",
+		.data		= &grsec_enable_tpe_invert,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_TPE_ALL
+	{
+		.procname	= "tpe_restrict_all",
+		.data		= &grsec_enable_tpe_all,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_SOCKET_ALL
+	{
+		.procname	= "socket_all",
+		.data		= &grsec_enable_socket_all,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+	{
+		.procname	= "socket_all_gid",
+		.data		= &grsec_socket_all_gid,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT
+	{
+		.procname	= "socket_client",
+		.data		= &grsec_enable_socket_client,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+	{
+		.procname	= "socket_client_gid",
+		.data		= &grsec_socket_client_gid,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
+	{
+		.procname	= "socket_server",
+		.data		= &grsec_enable_socket_server,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+	{
+		.procname	= "socket_server_gid",
+		.data		= &grsec_socket_server_gid,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_AUDIT_GROUP
+	{
+		.procname	= "audit_group",
+		.data		= &grsec_enable_group,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+	{
+		.procname	= "audit_gid",
+		.data		= &grsec_audit_gid,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR
+	{
+		.procname	= "audit_chdir",
+		.data		= &grsec_enable_chdir,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
+	{
+		.procname	= "audit_mount",
+		.data		= &grsec_enable_mount,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_DMESG
+	{
+		.procname	= "dmesg",
+		.data		= &grsec_enable_dmesg,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
+	{
+		.procname	= "chroot_findtask",
+		.data		= &grsec_enable_chroot_findtask,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_RESLOG
+	{
+		.procname	= "resource_logging",
+		.data		= &grsec_resource_logging,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_AUDIT_PTRACE
+	{
+		.procname	= "audit_ptrace",
+		.data		= &grsec_enable_audit_ptrace,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE
+	{
+		.procname	= "harden_ptrace",
+		.data		= &grsec_enable_harden_ptrace,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_HARDEN_IPC
+	{
+		.procname	= "harden_ipc",
+		.data		= &grsec_enable_harden_ipc,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_HARDEN_TTY
+	{
+		.procname	= "harden_tty",
+		.data		= &grsec_enable_harden_tty,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+	{
+		.procname	= "grsec_lock",
+		.data		= &grsec_lock,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+#ifdef CONFIG_GRKERNSEC_ROFS
+	{
+		.procname	= "romount_protect",
+		.data		= &grsec_enable_rofs,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_minmax_secure,
+		.extra1		= &one,
+		.extra2		= &one,
+	},
+#endif
+#if defined(CONFIG_GRKERNSEC_DENYUSB) && !defined(CONFIG_GRKERNSEC_DENYUSB_FORCE)
+	{
+		.procname	= "deny_new_usb",
+		.data		= &grsec_deny_new_usb,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_secure,
+	},
+#endif
+	{ }
+};
+#endif
diff --git a/grsecurity/grsec_time.c b/grsecurity/grsec_time.c
new file mode 100644
index 0000000..61b514e
--- /dev/null
+++ b/grsecurity/grsec_time.c
@@ -0,0 +1,16 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/grinternal.h>
+#include <linux/module.h>
+
+void
+gr_log_timechange(void)
+{
+#ifdef CONFIG_GRKERNSEC_TIME
+	if (grsec_enable_time)
+		gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_TIME_MSG);
+#endif
+	return;
+}
+
+EXPORT_SYMBOL_GPL(gr_log_timechange);
diff --git a/grsecurity/grsec_tpe.c b/grsecurity/grsec_tpe.c
new file mode 100644
index 0000000..cbd2776
--- /dev/null
+++ b/grsecurity/grsec_tpe.c
@@ -0,0 +1,78 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/file.h>
+#include <linux/fs.h>
+#include <linux/grinternal.h>
+
+extern int gr_acl_tpe_check(void);
+
+int
+gr_tpe_allow(const struct file *file)
+{
+#ifdef CONFIG_GRKERNSEC
+	struct inode *inode = d_backing_inode(file->f_path.dentry->d_parent);
+	struct inode *file_inode = d_backing_inode(file->f_path.dentry);
+	const struct cred *cred = current_cred();
+	char *msg = NULL;
+	char *msg2 = NULL;
+
+	// never restrict root
+	if (gr_is_global_root(cred->uid))
+		return 1;
+
+	if (grsec_enable_tpe) {
+#ifdef CONFIG_GRKERNSEC_TPE_INVERT
+		if (grsec_enable_tpe_invert && !in_group_p(grsec_tpe_gid))
+			msg = "not being in trusted group";
+		else if (!grsec_enable_tpe_invert && in_group_p(grsec_tpe_gid))
+			msg = "being in untrusted group";
+#else
+		if (in_group_p(grsec_tpe_gid))
+			msg = "being in untrusted group";
+#endif
+	}
+	if (!msg && gr_acl_tpe_check())
+		msg = "being in untrusted role";
+
+	// not in any affected group/role
+	if (!msg)
+		goto next_check;
+
+	if (gr_is_global_nonroot(inode->i_uid))
+		msg2 = "file in non-root-owned directory";
+	else if (inode->i_mode & S_IWOTH)
+		msg2 = "file in world-writable directory";
+	else if ((inode->i_mode & S_IWGRP) && gr_is_global_nonroot_gid(inode->i_gid))
+		msg2 = "file in group-writable directory";
+	else if (file_inode->i_mode & S_IWOTH)
+		msg2 = "file is world-writable";
+
+	if (msg && msg2) {
+		char fullmsg[70] = {0};
+		snprintf(fullmsg, sizeof(fullmsg)-1, "%s and %s", msg, msg2);
+		gr_log_str_fs(GR_DONT_AUDIT, GR_EXEC_TPE_MSG, fullmsg, file->f_path.dentry, file->f_path.mnt);
+		return 0;
+	}
+	msg = NULL;
+next_check:
+#ifdef CONFIG_GRKERNSEC_TPE_ALL
+	if (!grsec_enable_tpe || !grsec_enable_tpe_all)
+		return 1;
+
+	if (gr_is_global_nonroot(inode->i_uid) && !uid_eq(inode->i_uid, cred->uid))
+		msg = "directory not owned by user";
+	else if (inode->i_mode & S_IWOTH)
+		msg = "file in world-writable directory";
+	else if ((inode->i_mode & S_IWGRP) && gr_is_global_nonroot_gid(inode->i_gid))
+		msg = "file in group-writable directory";
+	else if (file_inode->i_mode & S_IWOTH)
+		msg = "file is world-writable";
+
+	if (msg) {
+		gr_log_str_fs(GR_DONT_AUDIT, GR_EXEC_TPE_MSG, msg, file->f_path.dentry, file->f_path.mnt);
+		return 0;
+	}
+#endif
+#endif
+	return 1;
+}
diff --git a/grsecurity/grsec_tty.c b/grsecurity/grsec_tty.c
new file mode 100644
index 0000000..ad8b9c5
--- /dev/null
+++ b/grsecurity/grsec_tty.c
@@ -0,0 +1,18 @@
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/grsecurity.h>
+#include <linux/grinternal.h>
+#include <linux/capability.h>
+#include <linux/tty.h>
+
+int gr_handle_tiocsti(struct tty_struct *tty)
+{
+#ifdef CONFIG_GRKERNSEC_HARDEN_TTY
+	if (grsec_enable_harden_tty && (current->signal->tty == tty) &&
+	    !capable(CAP_SYS_ADMIN)) {
+		gr_log_noargs(GR_DONT_AUDIT, GR_TIOCSTI_MSG);
+		return 1;
+	}
+#endif
+	return 0;
+}
diff --git a/grsecurity/grsec_usb.c b/grsecurity/grsec_usb.c
new file mode 100644
index 0000000..ae02d8e
--- /dev/null
+++ b/grsecurity/grsec_usb.c
@@ -0,0 +1,15 @@
+#include <linux/kernel.h>
+#include <linux/grinternal.h>
+#include <linux/module.h>
+
+int gr_handle_new_usb(void)
+{
+#ifdef CONFIG_GRKERNSEC_DENYUSB
+	if (grsec_deny_new_usb) {
+		printk(KERN_ALERT "grsec: denied insert of new USB device\n");
+		return 1;
+	}
+#endif
+	return 0;
+}
+EXPORT_SYMBOL_GPL(gr_handle_new_usb);
diff --git a/grsecurity/grsum.c b/grsecurity/grsum.c
new file mode 100644
index 0000000..1af1e63
--- /dev/null
+++ b/grsecurity/grsum.c
@@ -0,0 +1,56 @@
+#include <linux/err.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/scatterlist.h>
+#include <linux/crypto.h>
+#include <linux/gracl.h>
+#include <crypto/algapi.h>
+#include <crypto/hash.h>
+
+#if !defined(CONFIG_CRYPTO) || defined(CONFIG_CRYPTO_MODULE) || !defined(CONFIG_CRYPTO_SHA256) || defined(CONFIG_CRYPTO_SHA256_MODULE)
+#error "crypto and sha256 must be built into the kernel"
+#endif
+
+int
+chkpw(struct gr_arg *entry, unsigned char *salt, unsigned char *sum)
+{
+	struct crypto_ahash *tfm;
+	struct ahash_request *req;
+	struct scatterlist sg[2];
+	unsigned char temp_sum[GR_SHA_LEN];
+	unsigned long *tmpsumptr = (unsigned long *)temp_sum;
+	unsigned long *sumptr = (unsigned long *)sum;
+	int retval = 1;
+
+	tfm = crypto_alloc_ahash("sha256", 0, CRYPTO_ALG_ASYNC);
+	if (IS_ERR(tfm))
+		goto out_wipe;
+
+	sg_init_table(sg, 2);
+	sg_set_buf(&sg[0], salt, GR_SALT_LEN);
+	sg_set_buf(&sg[1], entry->pw, strlen((const char *)entry->pw));
+
+	req = ahash_request_alloc(tfm, GFP_KERNEL);
+	if (!req) {
+		crypto_free_ahash(tfm);
+		goto out_wipe;
+	}
+
+	ahash_request_set_callback(req, 0, NULL, NULL);
+	ahash_request_set_crypt(req, sg, temp_sum, GR_SALT_LEN + strlen((const char *)entry->pw));
+
+	if (crypto_ahash_digest(req))
+		goto out_free;
+
+	if (!crypto_memneq(sumptr, tmpsumptr, GR_SHA_LEN))
+		retval = 0;
+
+out_free:
+	ahash_request_free(req);
+	crypto_free_ahash(tfm);
+out_wipe:
+	memset(entry->pw, 0, GR_PW_LEN);
+
+	return retval;
+}
diff --git a/include/acpi/ghes.h b/include/acpi/ghes.h
index 720446c..f32baee 100644
--- a/include/acpi/ghes.h
+++ b/include/acpi/ghes.h
@@ -32,7 +32,7 @@ struct ghes_estatus_node {
 
 struct ghes_estatus_cache {
 	u32 estatus_len;
-	atomic_t count;
+	atomic_unchecked_t count;
 	struct acpi_hest_generic *generic;
 	unsigned long long time_in;
 	struct rcu_head rcu;
diff --git a/include/asm-generic/4level-fixup.h b/include/asm-generic/4level-fixup.h
index 5bdab6b..9ae82fe 100644
--- a/include/asm-generic/4level-fixup.h
+++ b/include/asm-generic/4level-fixup.h
@@ -14,8 +14,10 @@
 #define pmd_alloc(mm, pud, address) \
 	((unlikely(pgd_none(*(pud))) && __pmd_alloc(mm, pud, address))? \
  		NULL: pmd_offset(pud, address))
+#define pmd_alloc_kernel(mm, pud, address) pmd_alloc((mm), (pud), (address))
 
 #define pud_alloc(mm, pgd, address)	(pgd)
+#define pud_alloc_kernel(mm, pgd, address)	pud_alloc((mm), (pgd), (address))
 #define pud_offset(pgd, start)		(pgd)
 #define pud_none(pud)			0
 #define pud_bad(pud)			0
diff --git a/include/asm-generic/atomic-long.h b/include/asm-generic/atomic-long.h
index 5e1f345..e7a174a 100644
--- a/include/asm-generic/atomic-long.h
+++ b/include/asm-generic/atomic-long.h
@@ -22,6 +22,12 @@
 
 typedef atomic64_t atomic_long_t;
 
+#ifdef CONFIG_PAX_REFCOUNT
+typedef atomic64_unchecked_t atomic_long_unchecked_t;
+#else
+typedef atomic64_t atomic_long_unchecked_t;
+#endif
+
 #define ATOMIC_LONG_INIT(i)	ATOMIC64_INIT(i)
 #define ATOMIC_LONG_PFX(x)	atomic64 ## x
 
@@ -29,51 +35,61 @@ typedef atomic64_t atomic_long_t;
 
 typedef atomic_t atomic_long_t;
 
+#ifdef CONFIG_PAX_REFCOUNT
+typedef atomic_unchecked_t atomic_long_unchecked_t;
+#else
+typedef atomic_t atomic_long_unchecked_t;
+#endif
+
 #define ATOMIC_LONG_INIT(i)	ATOMIC_INIT(i)
 #define ATOMIC_LONG_PFX(x)	atomic ## x
 
 #endif
 
-#define ATOMIC_LONG_READ_OP(mo)						\
-static inline long atomic_long_read##mo(const atomic_long_t *l)		\
+#define ATOMIC_LONG_READ_OP(mo, suffix)					\
+static inline long atomic_long_read##mo##suffix(const atomic_long##suffix##_t *l)\
 {									\
-	ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l;		\
+	ATOMIC_LONG_PFX(suffix##_t) *v = (ATOMIC_LONG_PFX(suffix##_t) *)l;\
 									\
-	return (long)ATOMIC_LONG_PFX(_read##mo)(v);			\
+	return (long)ATOMIC_LONG_PFX(_read##mo##suffix)(v);		\
 }
-ATOMIC_LONG_READ_OP()
-ATOMIC_LONG_READ_OP(_acquire)
+ATOMIC_LONG_READ_OP(,)
+ATOMIC_LONG_READ_OP(,_unchecked)
+ATOMIC_LONG_READ_OP(_acquire,)
 
 #undef ATOMIC_LONG_READ_OP
 
-#define ATOMIC_LONG_SET_OP(mo)						\
-static inline void atomic_long_set##mo(atomic_long_t *l, long i)	\
+#define ATOMIC_LONG_SET_OP(mo, suffix)					\
+static inline void atomic_long_set##mo##suffix(atomic_long##suffix##_t *l, long i)\
 {									\
-	ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l;		\
+	ATOMIC_LONG_PFX(suffix##_t) *v = (ATOMIC_LONG_PFX(suffix##_t) *)l;\
 									\
-	ATOMIC_LONG_PFX(_set##mo)(v, i);				\
+	ATOMIC_LONG_PFX(_set##mo##suffix)(v, i);			\
 }
-ATOMIC_LONG_SET_OP()
-ATOMIC_LONG_SET_OP(_release)
+ATOMIC_LONG_SET_OP(,)
+ATOMIC_LONG_SET_OP(,_unchecked)
+ATOMIC_LONG_SET_OP(_release,)
 
 #undef ATOMIC_LONG_SET_OP
 
-#define ATOMIC_LONG_ADD_SUB_OP(op, mo)					\
+#define ATOMIC_LONG_ADD_SUB_OP(op, mo, suffix)				\
 static inline long							\
-atomic_long_##op##_return##mo(long i, atomic_long_t *l)			\
+atomic_long_##op##_return##mo##suffix(long i, atomic_long##suffix##_t *l)\
 {									\
-	ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l;		\
+	ATOMIC_LONG_PFX(suffix##_t) *v = (ATOMIC_LONG_PFX(suffix##_t) *)l;\
 									\
-	return (long)ATOMIC_LONG_PFX(_##op##_return##mo)(i, v);		\
+	return (long)ATOMIC_LONG_PFX(_##op##_return##mo##suffix)(i, v);	\
 }
-ATOMIC_LONG_ADD_SUB_OP(add,)
-ATOMIC_LONG_ADD_SUB_OP(add, _relaxed)
-ATOMIC_LONG_ADD_SUB_OP(add, _acquire)
-ATOMIC_LONG_ADD_SUB_OP(add, _release)
-ATOMIC_LONG_ADD_SUB_OP(sub,)
-ATOMIC_LONG_ADD_SUB_OP(sub, _relaxed)
-ATOMIC_LONG_ADD_SUB_OP(sub, _acquire)
-ATOMIC_LONG_ADD_SUB_OP(sub, _release)
+ATOMIC_LONG_ADD_SUB_OP(add,,)
+ATOMIC_LONG_ADD_SUB_OP(add,,_unchecked)
+ATOMIC_LONG_ADD_SUB_OP(add, _relaxed,)
+ATOMIC_LONG_ADD_SUB_OP(add, _acquire,)
+ATOMIC_LONG_ADD_SUB_OP(add, _release,)
+ATOMIC_LONG_ADD_SUB_OP(sub,,)
+//ATOMIC_LONG_ADD_SUB_OP(sub,,_unchecked)
+ATOMIC_LONG_ADD_SUB_OP(sub, _relaxed,)
+ATOMIC_LONG_ADD_SUB_OP(sub, _acquire,)
+ATOMIC_LONG_ADD_SUB_OP(sub, _release,)
 
 #undef ATOMIC_LONG_ADD_SUB_OP
 
@@ -98,6 +114,11 @@ ATOMIC_LONG_ADD_SUB_OP(sub, _release)
 #define atomic_long_xchg(v, new) \
 	(ATOMIC_LONG_PFX(_xchg)((ATOMIC_LONG_PFX(_t) *)(v), (new)))
 
+#ifdef CONFIG_PAX_REFCOUNT
+#define atomic_long_xchg_unchecked(v, new) \
+	(ATOMIC_LONG_PFX(_xchg_unchecked)((ATOMIC_LONG_PFX(_unchecked_t) *)(v), (new)))
+#endif
+
 static __always_inline void atomic_long_inc(atomic_long_t *l)
 {
 	ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l;
@@ -105,6 +126,15 @@ static __always_inline void atomic_long_inc(atomic_long_t *l)
 	ATOMIC_LONG_PFX(_inc)(v);
 }
 
+#ifdef CONFIG_PAX_REFCOUNT
+static __always_inline void atomic_long_inc_unchecked(atomic_long_unchecked_t *l)
+{
+	ATOMIC_LONG_PFX(_unchecked_t) *v = (ATOMIC_LONG_PFX(_unchecked_t) *)l;
+
+	ATOMIC_LONG_PFX(_inc_unchecked)(v);
+}
+#endif
+
 static __always_inline void atomic_long_dec(atomic_long_t *l)
 {
 	ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l;
@@ -112,21 +142,32 @@ static __always_inline void atomic_long_dec(atomic_long_t *l)
 	ATOMIC_LONG_PFX(_dec)(v);
 }
 
-#define ATOMIC_LONG_OP(op)						\
+#ifdef CONFIG_PAX_REFCOUNT
+static __always_inline void atomic_long_dec_unchecked(atomic_long_unchecked_t *l)
+{
+	ATOMIC_LONG_PFX(_unchecked_t) *v = (ATOMIC_LONG_PFX(_unchecked_t) *)l;
+
+	ATOMIC_LONG_PFX(_dec_unchecked)(v);
+}
+#endif
+
+#define ATOMIC_LONG_OP(op, suffix)					\
 static __always_inline void						\
-atomic_long_##op(long i, atomic_long_t *l)				\
+atomic_long_##op##suffix(long i, atomic_long##suffix##_t *l)		\
 {									\
-	ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l;		\
+	ATOMIC_LONG_PFX(suffix##_t) *v = (ATOMIC_LONG_PFX(suffix##_t) *)l;\
 									\
-	ATOMIC_LONG_PFX(_##op)(i, v);					\
+	ATOMIC_LONG_PFX(_##op##suffix)(i, v);				\
 }
 
-ATOMIC_LONG_OP(add)
-ATOMIC_LONG_OP(sub)
-ATOMIC_LONG_OP(and)
-ATOMIC_LONG_OP(or)
-ATOMIC_LONG_OP(xor)
-ATOMIC_LONG_OP(andnot)
+ATOMIC_LONG_OP(add,)
+ATOMIC_LONG_OP(add,_unchecked)
+ATOMIC_LONG_OP(sub,)
+ATOMIC_LONG_OP(sub,_unchecked)
+ATOMIC_LONG_OP(and,)
+ATOMIC_LONG_OP(or,)
+ATOMIC_LONG_OP(xor,)
+ATOMIC_LONG_OP(andnot,)
 
 #undef ATOMIC_LONG_OP
 
@@ -158,22 +199,23 @@ static inline int atomic_long_add_negative(long i, atomic_long_t *l)
 	return ATOMIC_LONG_PFX(_add_negative)(i, v);
 }
 
-#define ATOMIC_LONG_INC_DEC_OP(op, mo)					\
+#define ATOMIC_LONG_INC_DEC_OP(op, mo, suffix)				\
 static inline long							\
-atomic_long_##op##_return##mo(atomic_long_t *l)				\
+atomic_long_##op##_return##mo##suffix(atomic_long##suffix##_t *l)	\
 {									\
-	ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l;		\
+	ATOMIC_LONG_PFX(suffix##_t) *v = (ATOMIC_LONG_PFX(suffix##_t) *)l;\
 									\
-	return (long)ATOMIC_LONG_PFX(_##op##_return##mo)(v);		\
+	return (long)ATOMIC_LONG_PFX(_##op##_return##mo##suffix)(v);	\
 }
-ATOMIC_LONG_INC_DEC_OP(inc,)
-ATOMIC_LONG_INC_DEC_OP(inc, _relaxed)
-ATOMIC_LONG_INC_DEC_OP(inc, _acquire)
-ATOMIC_LONG_INC_DEC_OP(inc, _release)
-ATOMIC_LONG_INC_DEC_OP(dec,)
-ATOMIC_LONG_INC_DEC_OP(dec, _relaxed)
-ATOMIC_LONG_INC_DEC_OP(dec, _acquire)
-ATOMIC_LONG_INC_DEC_OP(dec, _release)
+ATOMIC_LONG_INC_DEC_OP(inc,,)
+ATOMIC_LONG_INC_DEC_OP(inc,,_unchecked)
+ATOMIC_LONG_INC_DEC_OP(inc, _relaxed,)
+ATOMIC_LONG_INC_DEC_OP(inc, _acquire,)
+ATOMIC_LONG_INC_DEC_OP(inc, _release,)
+ATOMIC_LONG_INC_DEC_OP(dec,,)
+ATOMIC_LONG_INC_DEC_OP(dec, _relaxed,)
+ATOMIC_LONG_INC_DEC_OP(dec, _acquire,)
+ATOMIC_LONG_INC_DEC_OP(dec, _release,)
 
 #undef ATOMIC_LONG_INC_DEC_OP
 
@@ -187,4 +229,56 @@ static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u)
 #define atomic_long_inc_not_zero(l) \
 	ATOMIC_LONG_PFX(_inc_not_zero)((ATOMIC_LONG_PFX(_t) *)(l))
 
+#ifdef CONFIG_PAX_REFCOUNT
+static inline void pax_refcount_needs_these_functions(void)
+{
+	atomic_read_unchecked((atomic_unchecked_t *)NULL);
+	atomic_set_unchecked((atomic_unchecked_t *)NULL, 0);
+	atomic_add_unchecked(0, (atomic_unchecked_t *)NULL);
+	atomic_sub_unchecked(0, (atomic_unchecked_t *)NULL);
+	atomic_inc_unchecked((atomic_unchecked_t *)NULL);
+	(void)atomic_inc_and_test_unchecked((atomic_unchecked_t *)NULL);
+	atomic_inc_return_unchecked((atomic_unchecked_t *)NULL);
+	atomic_add_return_unchecked(0, (atomic_unchecked_t *)NULL);
+	atomic_dec_unchecked((atomic_unchecked_t *)NULL);
+	atomic_cmpxchg_unchecked((atomic_unchecked_t *)NULL, 0, 0);
+	(void)atomic_xchg_unchecked((atomic_unchecked_t *)NULL, 0);
+
+	atomic_long_read_unchecked((atomic_long_unchecked_t *)NULL);
+	atomic_long_set_unchecked((atomic_long_unchecked_t *)NULL, 0);
+	atomic_long_add_unchecked(0, (atomic_long_unchecked_t *)NULL);
+	atomic_long_sub_unchecked(0, (atomic_long_unchecked_t *)NULL);
+	atomic_long_inc_unchecked((atomic_long_unchecked_t *)NULL);
+	atomic_long_add_return_unchecked(0, (atomic_long_unchecked_t *)NULL);
+	atomic_long_inc_return_unchecked((atomic_long_unchecked_t *)NULL);
+	atomic_long_dec_unchecked((atomic_long_unchecked_t *)NULL);
+}
+#else
+#define atomic_read_unchecked(v) atomic_read(v)
+#define atomic_set_unchecked(v, i) atomic_set((v), (i))
+#define atomic_add_unchecked(i, v) atomic_add((i), (v))
+#define atomic_sub_unchecked(i, v) atomic_sub((i), (v))
+#define atomic_inc_unchecked(v) atomic_inc(v)
+#define atomic_inc_and_test_unchecked(v) atomic_inc_and_test(v)
+#ifndef atomic_inc_return_unchecked
+#define atomic_inc_return_unchecked(v) atomic_inc_return(v)
+#endif
+#ifndef atomic_add_return_unchecked
+#define atomic_add_return_unchecked(i, v) atomic_add_return((i), (v))
+#endif
+#define atomic_dec_unchecked(v) atomic_dec(v)
+#define atomic_cmpxchg_unchecked(v, o, n) atomic_cmpxchg((v), (o), (n))
+#define atomic_xchg_unchecked(v, i) atomic_xchg((v), (i))
+
+#define atomic_long_read_unchecked(v) atomic_long_read(v)
+#define atomic_long_set_unchecked(v, i) atomic_long_set((v), (i))
+#define atomic_long_add_unchecked(i, v) atomic_long_add((i), (v))
+#define atomic_long_sub_unchecked(i, v) atomic_long_sub((i), (v))
+#define atomic_long_inc_unchecked(v) atomic_long_inc(v)
+#define atomic_long_add_return_unchecked(i, v) atomic_long_add_return((i), (v))
+#define atomic_long_inc_return_unchecked(v) atomic_long_inc_return(v)
+#define atomic_long_dec_unchecked(v) atomic_long_dec(v)
+#define atomic_long_xchg_unchecked(v, i) atomic_long_xchg((v), (i))
+#endif
+
 #endif  /*  _ASM_GENERIC_ATOMIC_LONG_H  */
diff --git a/include/asm-generic/atomic64.h b/include/asm-generic/atomic64.h
index d48e78c..d29d3a3 100644
--- a/include/asm-generic/atomic64.h
+++ b/include/asm-generic/atomic64.h
@@ -16,6 +16,8 @@ typedef struct {
 	long long counter;
 } atomic64_t;
 
+typedef atomic64_t atomic64_unchecked_t;
+
 #define ATOMIC64_INIT(i)	{ (i) }
 
 extern long long atomic64_read(const atomic64_t *v);
@@ -55,4 +57,14 @@ extern int	 atomic64_add_unless(atomic64_t *v, long long a, long long u);
 #define atomic64_dec_and_test(v)	(atomic64_dec_return((v)) == 0)
 #define atomic64_inc_not_zero(v) 	atomic64_add_unless((v), 1LL, 0LL)
 
+#define atomic64_read_unchecked(v) atomic64_read(v)
+#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
+#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
+#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
+#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
+#define atomic64_inc_unchecked(v) atomic64_inc(v)
+#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
+#define atomic64_dec_unchecked(v) atomic64_dec(v)
+#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
+
 #endif  /*  _ASM_GENERIC_ATOMIC64_H  */
diff --git a/include/asm-generic/bitops/__fls.h b/include/asm-generic/bitops/__fls.h
index a60a7cc..0fe12f2 100644
--- a/include/asm-generic/bitops/__fls.h
+++ b/include/asm-generic/bitops/__fls.h
@@ -9,7 +9,7 @@
  *
  * Undefined if no set bit exists, so code should check against 0 first.
  */
-static __always_inline unsigned long __fls(unsigned long word)
+static __always_inline unsigned long __intentional_overflow(-1) __fls(unsigned long word)
 {
 	int num = BITS_PER_LONG - 1;
 
diff --git a/include/asm-generic/bitops/fls.h b/include/asm-generic/bitops/fls.h
index 0576d1f..dad6c71 100644
--- a/include/asm-generic/bitops/fls.h
+++ b/include/asm-generic/bitops/fls.h
@@ -9,7 +9,7 @@
  * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
  */
 
-static __always_inline int fls(int x)
+static __always_inline int __intentional_overflow(-1) fls(int x)
 {
 	int r = 32;
 
diff --git a/include/asm-generic/bitops/fls64.h b/include/asm-generic/bitops/fls64.h
index b097cf8..3d40e14 100644
--- a/include/asm-generic/bitops/fls64.h
+++ b/include/asm-generic/bitops/fls64.h
@@ -15,7 +15,7 @@
  * at position 64.
  */
 #if BITS_PER_LONG == 32
-static __always_inline int fls64(__u64 x)
+static __always_inline int __intentional_overflow(-1) fls64(__u64 x)
 {
 	__u32 h = x >> 32;
 	if (h)
@@ -23,7 +23,7 @@ static __always_inline int fls64(__u64 x)
 	return fls(x);
 }
 #elif BITS_PER_LONG == 64
-static __always_inline int fls64(__u64 x)
+static __always_inline int __intentional_overflow(-1) fls64(__u64 x)
 {
 	if (x == 0)
 		return 0;
diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
index 6f96247..4cdf266 100644
--- a/include/asm-generic/bug.h
+++ b/include/asm-generic/bug.h
@@ -62,13 +62,13 @@ struct bug_entry {
  * to provide better diagnostics.
  */
 #ifndef __WARN_TAINT
-extern __printf(3, 4)
+extern __printf(3, 4) __nocapture(1, 3, 4)
 void warn_slowpath_fmt(const char *file, const int line,
 		       const char *fmt, ...);
-extern __printf(4, 5)
+extern __printf(4, 5) __nocapture(1, 4, 5)
 void warn_slowpath_fmt_taint(const char *file, const int line, unsigned taint,
 			     const char *fmt, ...);
-extern void warn_slowpath_null(const char *file, const int line);
+extern __nocapture(1) void warn_slowpath_null(const char *file, const int line);
 #define WANT_WARN_ON_SLOWPATH
 #define __WARN()		warn_slowpath_null(__FILE__, __LINE__)
 #define __WARN_printf(arg...)	warn_slowpath_fmt(__FILE__, __LINE__, arg)
diff --git a/include/asm-generic/cache.h b/include/asm-generic/cache.h
index 1bfcfe5..e04c5c9 100644
--- a/include/asm-generic/cache.h
+++ b/include/asm-generic/cache.h
@@ -6,7 +6,7 @@
  * cache lines need to provide their own cache.h.
  */
 
-#define L1_CACHE_SHIFT		5
-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
+#define L1_CACHE_SHIFT		5UL
+#define L1_CACHE_BYTES		(1UL << L1_CACHE_SHIFT)
 
 #endif /* __ASM_GENERIC_CACHE_H */
diff --git a/include/asm-generic/emergency-restart.h b/include/asm-generic/emergency-restart.h
index 0d68a1e..b74a761 100644
--- a/include/asm-generic/emergency-restart.h
+++ b/include/asm-generic/emergency-restart.h
@@ -1,7 +1,7 @@
 #ifndef _ASM_GENERIC_EMERGENCY_RESTART_H
 #define _ASM_GENERIC_EMERGENCY_RESTART_H
 
-static inline void machine_emergency_restart(void)
+static inline __noreturn void machine_emergency_restart(void)
 {
 	machine_restart(NULL);
 }
diff --git a/include/asm-generic/kmap_types.h b/include/asm-generic/kmap_types.h
index 90f99c7..00ce236 100644
--- a/include/asm-generic/kmap_types.h
+++ b/include/asm-generic/kmap_types.h
@@ -2,9 +2,9 @@
 #define _ASM_GENERIC_KMAP_TYPES_H
 
 #ifdef __WITH_KM_FENCE
-# define KM_TYPE_NR 41
+# define KM_TYPE_NR 42
 #else
-# define KM_TYPE_NR 20
+# define KM_TYPE_NR 21
 #endif
 
 #endif
diff --git a/include/asm-generic/local.h b/include/asm-generic/local.h
index 9ceb03b..62b0b8f 100644
--- a/include/asm-generic/local.h
+++ b/include/asm-generic/local.h
@@ -23,24 +23,37 @@ typedef struct
 	atomic_long_t a;
 } local_t;
 
+typedef struct {
+	atomic_long_unchecked_t a;
+} local_unchecked_t;
+
 #define LOCAL_INIT(i)	{ ATOMIC_LONG_INIT(i) }
 
 #define local_read(l)	atomic_long_read(&(l)->a)
+#define local_read_unchecked(l)	atomic_long_read_unchecked(&(l)->a)
 #define local_set(l,i)	atomic_long_set((&(l)->a),(i))
+#define local_set_unchecked(l,i)	atomic_long_set_unchecked((&(l)->a),(i))
 #define local_inc(l)	atomic_long_inc(&(l)->a)
+#define local_inc_unchecked(l)	atomic_long_inc_unchecked(&(l)->a)
 #define local_dec(l)	atomic_long_dec(&(l)->a)
+#define local_dec_unchecked(l)	atomic_long_dec_unchecked(&(l)->a)
 #define local_add(i,l)	atomic_long_add((i),(&(l)->a))
+#define local_add_unchecked(i,l)	atomic_long_add_unchecked((i),(&(l)->a))
 #define local_sub(i,l)	atomic_long_sub((i),(&(l)->a))
+#define local_sub_unchecked(i,l)	atomic_long_sub_unchecked((i),(&(l)->a))
 
 #define local_sub_and_test(i, l) atomic_long_sub_and_test((i), (&(l)->a))
 #define local_dec_and_test(l) atomic_long_dec_and_test(&(l)->a)
 #define local_inc_and_test(l) atomic_long_inc_and_test(&(l)->a)
 #define local_add_negative(i, l) atomic_long_add_negative((i), (&(l)->a))
 #define local_add_return(i, l) atomic_long_add_return((i), (&(l)->a))
+#define local_add_return_unchecked(i, l) atomic_long_add_return_unchecked((i), (&(l)->a))
 #define local_sub_return(i, l) atomic_long_sub_return((i), (&(l)->a))
 #define local_inc_return(l) atomic_long_inc_return(&(l)->a)
+#define local_dec_return(l) atomic_long_dec_return(&(l)->a)
 
 #define local_cmpxchg(l, o, n) atomic_long_cmpxchg((&(l)->a), (o), (n))
+#define local_cmpxchg_unchecked(l, o, n) atomic_long_cmpxchg((&(l)->a), (o), (n))
 #define local_xchg(l, n) atomic_long_xchg((&(l)->a), (n))
 #define local_add_unless(l, _a, u) atomic_long_add_unless((&(l)->a), (_a), (u))
 #define local_inc_not_zero(l) atomic_long_inc_not_zero(&(l)->a)
diff --git a/include/asm-generic/pgtable-nopmd.h b/include/asm-generic/pgtable-nopmd.h
index 725612b..9cc513a 100644
--- a/include/asm-generic/pgtable-nopmd.h
+++ b/include/asm-generic/pgtable-nopmd.h
@@ -1,14 +1,19 @@
 #ifndef _PGTABLE_NOPMD_H
 #define _PGTABLE_NOPMD_H
 
-#ifndef __ASSEMBLY__
-
 #include <asm-generic/pgtable-nopud.h>
 
-struct mm_struct;
-
 #define __PAGETABLE_PMD_FOLDED
 
+#define PMD_SHIFT	PUD_SHIFT
+#define PTRS_PER_PMD	1
+#define PMD_SIZE  	(_AC(1,UL) << PMD_SHIFT)
+#define PMD_MASK  	(~(PMD_SIZE-1))
+
+#ifndef __ASSEMBLY__
+
+struct mm_struct;
+
 /*
  * Having the pmd type consist of a pud gets the size right, and allows
  * us to conceptually access the pud entry that this pmd is folded into
@@ -16,11 +21,6 @@ struct mm_struct;
  */
 typedef struct { pud_t pud; } pmd_t;
 
-#define PMD_SHIFT	PUD_SHIFT
-#define PTRS_PER_PMD	1
-#define PMD_SIZE  	(1UL << PMD_SHIFT)
-#define PMD_MASK  	(~(PMD_SIZE-1))
-
 /*
  * The "pud_xxx()" functions here are trivial for a folded two-level
  * setup: the pmd is never bad, and a pmd always exists (as it's folded
diff --git a/include/asm-generic/pgtable-nopud.h b/include/asm-generic/pgtable-nopud.h
index 810431d..0ec4804f 100644
--- a/include/asm-generic/pgtable-nopud.h
+++ b/include/asm-generic/pgtable-nopud.h
@@ -1,10 +1,15 @@
 #ifndef _PGTABLE_NOPUD_H
 #define _PGTABLE_NOPUD_H
 
-#ifndef __ASSEMBLY__
-
 #define __PAGETABLE_PUD_FOLDED
 
+#define PUD_SHIFT	PGDIR_SHIFT
+#define PTRS_PER_PUD	1
+#define PUD_SIZE  	(_AC(1,UL) << PUD_SHIFT)
+#define PUD_MASK  	(~(PUD_SIZE-1))
+
+#ifndef __ASSEMBLY__
+
 /*
  * Having the pud type consist of a pgd gets the size right, and allows
  * us to conceptually access the pgd entry that this pud is folded into
@@ -12,11 +17,6 @@
  */
 typedef struct { pgd_t pgd; } pud_t;
 
-#define PUD_SHIFT	PGDIR_SHIFT
-#define PTRS_PER_PUD	1
-#define PUD_SIZE  	(1UL << PUD_SHIFT)
-#define PUD_MASK  	(~(PUD_SIZE-1))
-
 /*
  * The "pgd_xxx()" functions here are trivial for a folded two-level
  * setup: the pud is never bad, and a pud always exists (as it's folded
@@ -29,6 +29,7 @@ static inline void pgd_clear(pgd_t *pgd)	{ }
 #define pud_ERROR(pud)				(pgd_ERROR((pud).pgd))
 
 #define pgd_populate(mm, pgd, pud)		do { } while (0)
+#define pgd_populate_kernel(mm, pgd, pud)	do { } while (0)
 /*
  * (puds are folded into pgds so this doesn't get actually called,
  * but the define is needed for a generic inline function.)
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index 9401f48..7e86f97 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -757,6 +757,22 @@ static inline int pmd_protnone(pmd_t pmd)
 }
 #endif /* CONFIG_NUMA_BALANCING */
 
+#ifndef __HAVE_ARCH_PAX_OPEN_KERNEL
+#ifdef CONFIG_PAX_KERNEXEC
+#error KERNEXEC requires pax_open_kernel
+#else
+static inline unsigned long pax_open_kernel(void) { return 0; }
+#endif
+#endif
+
+#ifndef __HAVE_ARCH_PAX_CLOSE_KERNEL
+#ifdef CONFIG_PAX_KERNEXEC
+#error KERNEXEC requires pax_close_kernel
+#else
+static inline unsigned long pax_close_kernel(void) { return 0; }
+#endif
+#endif
+
 #endif /* CONFIG_MMU */
 
 #ifdef CONFIG_HAVE_ARCH_HUGE_VMAP
diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h
index af0254c..a4e4da3 100644
--- a/include/asm-generic/sections.h
+++ b/include/asm-generic/sections.h
@@ -31,6 +31,7 @@ extern char _data[], _sdata[], _edata[];
 extern char __bss_start[], __bss_stop[];
 extern char __init_begin[], __init_end[];
 extern char _sinittext[], _einittext[];
+extern char _sinitdata[], _einitdata[];
 extern char _end[];
 extern char __per_cpu_load[], __per_cpu_start[], __per_cpu_end[];
 extern char __kprobes_text_start[], __kprobes_text_end[];
diff --git a/include/asm-generic/uaccess.h b/include/asm-generic/uaccess.h
index 1bfa602..aab89b1 100644
--- a/include/asm-generic/uaccess.h
+++ b/include/asm-generic/uaccess.h
@@ -345,4 +345,20 @@ clear_user(void __user *to, unsigned long n)
 	return __clear_user(to, n);
 }
 
+#ifndef __HAVE_ARCH_PAX_OPEN_USERLAND
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+#error UDEREF requires pax_open_userland
+#else
+static inline unsigned long pax_open_userland(void) { return 0; }
+#endif
+#endif
+
+#ifndef __HAVE_ARCH_PAX_CLOSE_USERLAND
+#ifdef CONFIG_PAX_MEMORY_UDEREF
+#error UDEREF requires pax_close_userland
+#else
+static inline unsigned long pax_close_userland(void) { return 0; }
+#endif
+#endif
+
 #endif /* __ASM_GENERIC_UACCESS_H */
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 339125b..903c9bf 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -256,6 +256,7 @@
 		VMLINUX_SYMBOL(__start_rodata) = .;			\
 		*(.rodata) *(.rodata.*)					\
 		*(.data..ro_after_init)	/* Read only after init */	\
+		*(.data..read_only)					\
 		*(__vermagic)		/* Kernel version magic */	\
 		. = ALIGN(8);						\
 		VMLINUX_SYMBOL(__start___tracepoints_ptrs) = .;		\
@@ -522,6 +523,7 @@
 	KERNEL_CTORS()							\
 	MCOUNT_REC()							\
 	*(.init.rodata)							\
+	*(.init.rodata.*)						\
 	FTRACE_EVENTS()							\
 	TRACE_SYSCALLS()						\
 	KPROBE_BLACKLIST()						\
@@ -544,6 +546,8 @@
 
 #define EXIT_DATA							\
 	*(.exit.data)							\
+	*(.exit.rodata)							\
+	*(.exit.rodata.*)						\
 	MEM_DISCARD(exit.data)						\
 	MEM_DISCARD(exit.rodata)
 
@@ -760,17 +764,18 @@
  * section in the linker script will go there too.  @phdr should have
  * a leading colon.
  *
- * Note that this macros defines __per_cpu_load as an absolute symbol.
+ * Note that this macros defines per_cpu_load as an absolute symbol.
  * If there is no need to put the percpu section at a predetermined
  * address, use PERCPU_SECTION.
  */
 #define PERCPU_VADDR(cacheline, vaddr, phdr)				\
-	VMLINUX_SYMBOL(__per_cpu_load) = .;				\
-	.data..percpu vaddr : AT(VMLINUX_SYMBOL(__per_cpu_load)		\
+	per_cpu_load = .;						\
+	.data..percpu vaddr : AT(VMLINUX_SYMBOL(per_cpu_load)		\
 				- LOAD_OFFSET) {			\
+		VMLINUX_SYMBOL(__per_cpu_load) = . + per_cpu_load;	\
 		PERCPU_INPUT(cacheline)					\
 	} phdr								\
-	. = VMLINUX_SYMBOL(__per_cpu_load) + SIZEOF(.data..percpu);
+	. = VMLINUX_SYMBOL(per_cpu_load) + SIZEOF(.data..percpu);
 
 /**
  * PERCPU_SECTION - define output section for percpu area, simple version
@@ -832,12 +837,14 @@
 
 #define INIT_DATA_SECTION(initsetup_align)				\
 	.init.data : AT(ADDR(.init.data) - LOAD_OFFSET) {		\
+		VMLINUX_SYMBOL(_sinitdata) = .;				\
 		INIT_DATA						\
 		INIT_SETUP(initsetup_align)				\
 		INIT_CALLS						\
 		CON_INITCALL						\
 		SECURITY_INITCALL					\
 		INIT_RAM_FS						\
+		VMLINUX_SYMBOL(_einitdata) = .;				\
 	}
 
 #define BSS_SECTION(sbss_align, bss_align, stop_align)			\
diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index eeafd21..9fdfff1 100644
--- a/include/crypto/algapi.h
+++ b/include/crypto/algapi.h
@@ -38,7 +38,7 @@ struct crypto_type {
 	unsigned int maskclear;
 	unsigned int maskset;
 	unsigned int tfmsize;
-};
+} __do_const;
 
 struct crypto_instance {
 	struct crypto_alg alg;
diff --git a/include/crypto/cast6.h b/include/crypto/cast6.h
index 32b60eb..1a592df 100644
--- a/include/crypto/cast6.h
+++ b/include/crypto/cast6.h
@@ -18,7 +18,7 @@ int __cast6_setkey(struct cast6_ctx *ctx, const u8 *key,
 		   unsigned int keylen, u32 *flags);
 int cast6_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen);
 
-void __cast6_encrypt(struct cast6_ctx *ctx, u8 *dst, const u8 *src);
-void __cast6_decrypt(struct cast6_ctx *ctx, u8 *dst, const u8 *src);
+void __cast6_encrypt(void *ctx, u8 *dst, const u8 *src);
+void __cast6_decrypt(void *ctx, u8 *dst, const u8 *src);
 
 #endif
diff --git a/include/crypto/serpent.h b/include/crypto/serpent.h
index b7e0941..1a1f67f 100644
--- a/include/crypto/serpent.h
+++ b/include/crypto/serpent.h
@@ -21,7 +21,7 @@ int __serpent_setkey(struct serpent_ctx *ctx, const u8 *key,
 		     unsigned int keylen);
 int serpent_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen);
 
-void __serpent_encrypt(struct serpent_ctx *ctx, u8 *dst, const u8 *src);
-void __serpent_decrypt(struct serpent_ctx *ctx, u8 *dst, const u8 *src);
+void __serpent_encrypt(void *ctx, u8 *dst, const u8 *src);
+void __serpent_decrypt(void *ctx, u8 *dst, const u8 *src);
 
 #endif
diff --git a/include/crypto/xts.h b/include/crypto/xts.h
index ede6b97..1f5b11f 100644
--- a/include/crypto/xts.h
+++ b/include/crypto/xts.h
@@ -21,7 +21,7 @@ struct xts_crypt_req {
 	void (*crypt_fn)(void *ctx, u8 *blks, unsigned int nbytes);
 };
 
-#define XTS_TWEAK_CAST(x) ((void (*)(void *, u8*, const u8*))(x))
+#define XTS_TWEAK_CAST(x) (x)
 
 int xts_crypt(struct blkcipher_desc *desc, struct scatterlist *dst,
 	      struct scatterlist *src, unsigned int nbytes,
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 3c8422c..251247f 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -59,6 +59,7 @@
 
 #include <asm/mman.h>
 #include <asm/pgalloc.h>
+#include <asm/local.h>
 #include <asm/uaccess.h>
 
 #include <uapi/drm/drm.h>
@@ -243,10 +244,12 @@ void drm_err(const char *format, ...);
  * \param cmd command.
  * \param arg argument.
  */
-typedef int drm_ioctl_t(struct drm_device *dev, void *data,
+typedef int (* const drm_ioctl_t)(struct drm_device *dev, void *data,
+			struct drm_file *file_priv);
+typedef int (* drm_ioctl_no_const_t)(struct drm_device *dev, void *data,
 			struct drm_file *file_priv);
 
-typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
+typedef int (* const drm_ioctl_compat_t)(struct file *filp, unsigned int cmd,
 			       unsigned long arg);
 
 #define DRM_IOCTL_NR(n)                _IOC_NR(n)
@@ -262,9 +265,9 @@ typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
 struct drm_ioctl_desc {
 	unsigned int cmd;
 	int flags;
-	drm_ioctl_t *func;
+	drm_ioctl_t func;
 	const char *name;
-};
+} __do_const;
 
 /**
  * Creates a driver or general drm_ioctl_desc array entry for the given
@@ -656,7 +659,8 @@ struct drm_driver {
 
 	/* List of devices hanging off this driver with stealth attach. */
 	struct list_head legacy_dev_list;
-};
+} __do_const;
+typedef struct drm_driver __no_const drm_driver_no_const;
 
 enum drm_minor_type {
 	DRM_MINOR_LEGACY,
@@ -674,7 +678,8 @@ struct drm_info_list {
 	int (*show)(struct seq_file*, void*); /** show callback */
 	u32 driver_features; /**< Required driver features for this entry */
 	void *data;
-};
+} __do_const;
+typedef struct drm_info_list __no_const drm_info_list_no_const;
 
 /**
  * debugfs node structure. This structure represents a debugfs file.
@@ -763,7 +768,7 @@ struct drm_device {
 
 	/** \name Usage Counters */
 	/*@{ */
-	int open_count;			/**< Outstanding files open, protected by drm_global_mutex. */
+	local_t open_count;		/**< Outstanding files open, protected by drm_global_mutex. */
 	spinlock_t buf_lock;		/**< For drm_device::buf_use and a few other things. */
 	int buf_use;			/**< Buffers in use -- cannot alloc */
 	atomic_t buf_alloc;		/**< Buffer allocation in progress */
diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h
index fc65118..7d80068 100644
--- a/include/drm/drm_mm.h
+++ b/include/drm/drm_mm.h
@@ -291,7 +291,7 @@ void drm_mm_remove_node(struct drm_mm_node *node);
 void drm_mm_replace_node(struct drm_mm_node *old, struct drm_mm_node *new);
 void drm_mm_init(struct drm_mm *mm,
 		 u64 start,
-		 u64 size);
+		 u64 size) __intentional_overflow(3);
 void drm_mm_takedown(struct drm_mm *mm);
 bool drm_mm_clean(struct drm_mm *mm);
 
diff --git a/include/drm/drm_modeset_helper_vtables.h b/include/drm/drm_modeset_helper_vtables.h
index b61c2d4..7b8686d 100644
--- a/include/drm/drm_modeset_helper_vtables.h
+++ b/include/drm/drm_modeset_helper_vtables.h
@@ -638,7 +638,7 @@ struct drm_encoder_helper_funcs {
 	int (*atomic_check)(struct drm_encoder *encoder,
 			    struct drm_crtc_state *crtc_state,
 			    struct drm_connector_state *conn_state);
-};
+} __no_const;
 
 /**
  * drm_encoder_helper_add - sets the helper vtable for an encoder
@@ -772,6 +772,7 @@ struct drm_connector_helper_funcs {
 	struct drm_encoder *(*atomic_best_encoder)(struct drm_connector *connector,
 						   struct drm_connector_state *connector_state);
 };
+typedef struct drm_connector_helper_funcs __no_const drm_connector_helper_funcs_no_const;
 
 /**
  * drm_connector_helper_add - sets the helper vtable for a connector
diff --git a/include/drm/i915_pciids.h b/include/drm/i915_pciids.h
index 9094599..19d0c344 100644
--- a/include/drm/i915_pciids.h
+++ b/include/drm/i915_pciids.h
@@ -37,7 +37,7 @@
  */
 #define INTEL_VGA_DEVICE(id, info) {		\
 	0x8086,	id,				\
-	~0, ~0,					\
+	PCI_ANY_ID, PCI_ANY_ID,			\
 	0x030000, 0xff0000,			\
 	(unsigned long) info }
 
diff --git a/include/drm/intel-gtt.h b/include/drm/intel-gtt.h
index 9e9bddaa5..ce73c69 100644
--- a/include/drm/intel-gtt.h
+++ b/include/drm/intel-gtt.h
@@ -3,8 +3,8 @@
 #ifndef _DRM_INTEL_GTT_H
 #define	_DRM_INTEL_GTT_H
 
-void intel_gtt_get(u64 *gtt_total, size_t *stolen_size,
-		   phys_addr_t *mappable_base, u64 *mappable_end);
+void intel_gtt_get(u64 *gtt_total, u64 *stolen_size,
+		   u64 *mappable_base, u64 *mappable_end);
 
 int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev,
 		     struct agp_bridge_data *bridge);
diff --git a/include/drm/ttm/ttm_memory.h b/include/drm/ttm/ttm_memory.h
index 72dcbe8..8db58d7 100644
--- a/include/drm/ttm/ttm_memory.h
+++ b/include/drm/ttm/ttm_memory.h
@@ -48,7 +48,7 @@
 
 struct ttm_mem_shrink {
 	int (*do_shrink) (struct ttm_mem_shrink *);
-};
+} __no_const;
 
 /**
  * struct ttm_mem_global - Global memory accounting structure.
diff --git a/include/drm/ttm/ttm_page_alloc.h b/include/drm/ttm/ttm_page_alloc.h
index 49a8284..9643967 100644
--- a/include/drm/ttm/ttm_page_alloc.h
+++ b/include/drm/ttm/ttm_page_alloc.h
@@ -80,6 +80,7 @@ void ttm_dma_page_alloc_fini(void);
  */
 extern int ttm_dma_page_alloc_debugfs(struct seq_file *m, void *data);
 
+struct device;
 extern int ttm_dma_populate(struct ttm_dma_tt *ttm_dma, struct device *dev);
 extern void ttm_dma_unpopulate(struct ttm_dma_tt *ttm_dma, struct device *dev);
 
diff --git a/include/keys/asymmetric-subtype.h b/include/keys/asymmetric-subtype.h
index 4915d40..8b913c0 100644
--- a/include/keys/asymmetric-subtype.h
+++ b/include/keys/asymmetric-subtype.h
@@ -37,7 +37,7 @@ struct asymmetric_key_subtype {
 	/* Verify the signature on a key of this subtype (optional) */
 	int (*verify_signature)(const struct key *key,
 				const struct public_key_signature *sig);
-};
+} __do_const;
 
 /**
  * asymmetric_key_subtype - Get the subtype from an asymmetric key
diff --git a/include/keys/encrypted-type.h b/include/keys/encrypted-type.h
index 1d45413..377bc27 100644
--- a/include/keys/encrypted-type.h
+++ b/include/keys/encrypted-type.h
@@ -15,7 +15,7 @@
 #ifndef _KEYS_ENCRYPTED_TYPE_H
 #define _KEYS_ENCRYPTED_TYPE_H
 
-#include <linux/key.h>
+#include <linux/key-type.h>
 #include <linux/rcupdate.h>
 
 struct encrypted_key_payload {
diff --git a/include/keys/rxrpc-type.h b/include/keys/rxrpc-type.h
index fc48754..ea15d5c 100644
--- a/include/keys/rxrpc-type.h
+++ b/include/keys/rxrpc-type.h
@@ -12,7 +12,7 @@
 #ifndef _KEYS_RXRPC_TYPE_H
 #define _KEYS_RXRPC_TYPE_H
 
-#include <linux/key.h>
+#include <linux/key-type.h>
 
 /*
  * key type for AF_RXRPC keys
diff --git a/include/keys/user-type.h b/include/keys/user-type.h
index c56fef4..c9ebdc7 100644
--- a/include/keys/user-type.h
+++ b/include/keys/user-type.h
@@ -12,7 +12,7 @@
 #ifndef _KEYS_USER_TYPE_H
 #define _KEYS_USER_TYPE_H
 
-#include <linux/key.h>
+#include <linux/key-type.h>
 #include <linux/rcupdate.h>
 
 #ifdef CONFIG_KEYS
diff --git a/include/linux/atmdev.h b/include/linux/atmdev.h
index c1da539..1dcec55 100644
--- a/include/linux/atmdev.h
+++ b/include/linux/atmdev.h
@@ -28,7 +28,7 @@ struct compat_atm_iobuf {
 #endif
 
 struct k_atm_aal_stats {
-#define __HANDLE_ITEM(i) atomic_t i
+#define __HANDLE_ITEM(i) atomic_unchecked_t i
 	__AAL_STAT_ITEMS
 #undef __HANDLE_ITEM
 };
@@ -200,7 +200,7 @@ struct atmdev_ops { /* only send is required */
 	int (*change_qos)(struct atm_vcc *vcc,struct atm_qos *qos,int flags);
 	int (*proc_read)(struct atm_dev *dev,loff_t *pos,char *page);
 	struct module *owner;
-};
+} __do_const ;
 
 struct atmphy_ops {
 	int (*start)(struct atm_dev *dev);
diff --git a/include/linux/atomic.h b/include/linux/atomic.h
index 506c353..414ddeb 100644
--- a/include/linux/atomic.h
+++ b/include/linux/atomic.h
@@ -113,6 +113,11 @@
 #define  atomic_inc_return(...)						\
 	__atomic_op_fence(atomic_inc_return, __VA_ARGS__)
 #endif
+
+#ifndef atomic_inc_return_unchecked
+#define  atomic_inc_return_unchecked(...)				\
+	__atomic_op_fence(atomic_inc_return_unchecked, __VA_ARGS__)
+#endif
 #endif /* atomic_inc_return_relaxed */
 
 /* atomic_sub_return_relaxed */
@@ -265,6 +270,11 @@
 #define  atomic64_inc_return(...)					\
 	__atomic_op_fence(atomic64_inc_return, __VA_ARGS__)
 #endif
+
+#ifndef atomic64_inc_return_unchecked
+#define  atomic64_inc_return_unchecked(...)				\
+	__atomic_op_fence(atomic64_inc_return_unchecked, __VA_ARGS__)
+#endif
 #endif /* atomic64_inc_return_relaxed */
 
 
@@ -442,7 +452,7 @@
  * Atomically adds @a to @v, so long as @v was not already @u.
  * Returns non-zero if @v was not @u, and zero otherwise.
  */
-static inline int atomic_add_unless(atomic_t *v, int a, int u)
+static inline int __intentional_overflow(-1) atomic_add_unless(atomic_t *v, int a, int u)
 {
 	return __atomic_add_unless(v, a, u) != u;
 }
diff --git a/include/linux/audit.h b/include/linux/audit.h
index e38e3fc..f426dd5 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -335,7 +335,7 @@ static inline void audit_ptrace(struct task_struct *t)
 extern unsigned int audit_serial(void);
 extern int auditsc_get_stamp(struct audit_context *ctx,
 			      struct timespec *t, unsigned int *serial);
-extern int audit_set_loginuid(kuid_t loginuid);
+extern int __intentional_overflow(-1) audit_set_loginuid(kuid_t loginuid);
 
 static inline kuid_t audit_get_loginuid(struct task_struct *tsk)
 {
diff --git a/include/linux/average.h b/include/linux/average.h
index d04aa58..3de0da8 100644
--- a/include/linux/average.h
+++ b/include/linux/average.h
@@ -36,7 +36,7 @@
 		BUILD_BUG_ON_NOT_POWER_OF_2(_factor);			\
 		BUILD_BUG_ON_NOT_POWER_OF_2(_weight);			\
 									\
-		ACCESS_ONCE(e->internal) = internal ?			\
+		ACCESS_ONCE_RW(e->internal) = internal ?		\
 			(((internal << weight) - internal) +		\
 				(val << factor)) >> weight :		\
 			(val << factor);				\
diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h
index 576e463..28fd926 100644
--- a/include/linux/binfmts.h
+++ b/include/linux/binfmts.h
@@ -44,7 +44,7 @@ struct linux_binprm {
 	unsigned interp_flags;
 	unsigned interp_data;
 	unsigned long loader, exec;
-};
+} __randomize_layout;
 
 #define BINPRM_FLAGS_ENFORCE_NONDUMP_BIT 0
 #define BINPRM_FLAGS_ENFORCE_NONDUMP (1 << BINPRM_FLAGS_ENFORCE_NONDUMP_BIT)
@@ -77,8 +77,10 @@ struct linux_binfmt {
 	int (*load_binary)(struct linux_binprm *);
 	int (*load_shlib)(struct file *);
 	int (*core_dump)(struct coredump_params *cprm);
+	void (*handle_mprotect)(struct vm_area_struct *vma, unsigned long newflags);
+	void (*handle_mmap)(struct file *);
 	unsigned long min_coredump;	/* minimal dump size */
-};
+} __do_const __randomize_layout;
 
 extern void __register_binfmt(struct linux_binfmt *fmt, int insert);
 
diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
index e9b0b9a..4fc3241 100644
--- a/include/linux/bitmap.h
+++ b/include/linux/bitmap.h
@@ -305,7 +305,7 @@ static inline int bitmap_full(const unsigned long *src, unsigned int nbits)
 	return find_first_zero_bit(src, nbits) == nbits;
 }
 
-static __always_inline int bitmap_weight(const unsigned long *src, unsigned int nbits)
+static __always_inline int __intentional_overflow(-1) bitmap_weight(const unsigned long *src, unsigned int nbits)
 {
 	if (small_const_nbits(nbits))
 		return hweight_long(*src & BITMAP_LAST_WORD_MASK(nbits));
diff --git a/include/linux/bitops.h b/include/linux/bitops.h
index defeaac..856d23d 100644
--- a/include/linux/bitops.h
+++ b/include/linux/bitops.h
@@ -75,7 +75,7 @@ static inline int get_count_order(unsigned int count)
 	return order;
 }
 
-static __always_inline unsigned long hweight_long(unsigned long w)
+static __always_inline unsigned long __intentional_overflow(-1) hweight_long(unsigned long w)
 {
 	return sizeof(w) == 4 ? hweight32(w) : hweight64(w);
 }
@@ -105,7 +105,7 @@ static inline __u64 ror64(__u64 word, unsigned int shift)
  * @word: value to rotate
  * @shift: bits to roll
  */
-static inline __u32 rol32(__u32 word, unsigned int shift)
+static inline __u32 __intentional_overflow(-1) rol32(__u32 word, unsigned int shift)
 {
 	return (word << shift) | (word >> ((-shift) & 31));
 }
@@ -115,7 +115,7 @@ static inline __u32 rol32(__u32 word, unsigned int shift)
  * @word: value to rotate
  * @shift: bits to roll
  */
-static inline __u32 ror32(__u32 word, unsigned int shift)
+static inline __u32 __intentional_overflow(-1) ror32(__u32 word, unsigned int shift)
 {
 	return (word >> shift) | (word << (32 - shift));
 }
@@ -184,7 +184,7 @@ static inline __s64 sign_extend64(__u64 value, int index)
 	return (__s64)(value << shift) >> shift;
 }
 
-static inline unsigned fls_long(unsigned long l)
+static inline unsigned __intentional_overflow(-1) fls_long(unsigned long l)
 {
 	if (sizeof(l) == 4)
 		return fls(l);
diff --git a/include/linux/blk-cgroup.h b/include/linux/blk-cgroup.h
index c02e669..439bd4b 100644
--- a/include/linux/blk-cgroup.h
+++ b/include/linux/blk-cgroup.h
@@ -63,12 +63,12 @@ struct blkcg {
  */
 struct blkg_stat {
 	struct percpu_counter		cpu_cnt;
-	atomic64_t			aux_cnt;
+	atomic64_unchecked_t		aux_cnt;
 };
 
 struct blkg_rwstat {
 	struct percpu_counter		cpu_cnt[BLKG_RWSTAT_NR];
-	atomic64_t			aux_cnt[BLKG_RWSTAT_NR];
+	atomic64_unchecked_t		aux_cnt[BLKG_RWSTAT_NR];
 };
 
 /*
@@ -508,7 +508,7 @@ static inline int blkg_stat_init(struct blkg_stat *stat, gfp_t gfp)
 	if (ret)
 		return ret;
 
-	atomic64_set(&stat->aux_cnt, 0);
+	atomic64_set_unchecked(&stat->aux_cnt, 0);
 	return 0;
 }
 
@@ -546,7 +546,7 @@ static inline uint64_t blkg_stat_read(struct blkg_stat *stat)
 static inline void blkg_stat_reset(struct blkg_stat *stat)
 {
 	percpu_counter_set(&stat->cpu_cnt, 0);
-	atomic64_set(&stat->aux_cnt, 0);
+	atomic64_set_unchecked(&stat->aux_cnt, 0);
 }
 
 /**
@@ -559,7 +559,7 @@ static inline void blkg_stat_reset(struct blkg_stat *stat)
 static inline void blkg_stat_add_aux(struct blkg_stat *to,
 				     struct blkg_stat *from)
 {
-	atomic64_add(blkg_stat_read(from) + atomic64_read(&from->aux_cnt),
+	atomic64_add_unchecked(blkg_stat_read(from) + atomic64_read_unchecked(&from->aux_cnt),
 		     &to->aux_cnt);
 }
 
@@ -574,7 +574,7 @@ static inline int blkg_rwstat_init(struct blkg_rwstat *rwstat, gfp_t gfp)
 				percpu_counter_destroy(&rwstat->cpu_cnt[i]);
 			return ret;
 		}
-		atomic64_set(&rwstat->aux_cnt[i], 0);
+		atomic64_set_unchecked(&rwstat->aux_cnt[i], 0);
 	}
 	return 0;
 }
@@ -628,7 +628,7 @@ static inline struct blkg_rwstat blkg_rwstat_read(struct blkg_rwstat *rwstat)
 	int i;
 
 	for (i = 0; i < BLKG_RWSTAT_NR; i++)
-		atomic64_set(&result.aux_cnt[i],
+		atomic64_set_unchecked(&result.aux_cnt[i],
 			     percpu_counter_sum_positive(&rwstat->cpu_cnt[i]));
 	return result;
 }
@@ -645,8 +645,8 @@ static inline uint64_t blkg_rwstat_total(struct blkg_rwstat *rwstat)
 {
 	struct blkg_rwstat tmp = blkg_rwstat_read(rwstat);
 
-	return atomic64_read(&tmp.aux_cnt[BLKG_RWSTAT_READ]) +
-		atomic64_read(&tmp.aux_cnt[BLKG_RWSTAT_WRITE]);
+	return atomic64_read_unchecked(&tmp.aux_cnt[BLKG_RWSTAT_READ]) +
+		atomic64_read_unchecked(&tmp.aux_cnt[BLKG_RWSTAT_WRITE]);
 }
 
 /**
@@ -659,7 +659,7 @@ static inline void blkg_rwstat_reset(struct blkg_rwstat *rwstat)
 
 	for (i = 0; i < BLKG_RWSTAT_NR; i++) {
 		percpu_counter_set(&rwstat->cpu_cnt[i], 0);
-		atomic64_set(&rwstat->aux_cnt[i], 0);
+		atomic64_set_unchecked(&rwstat->aux_cnt[i], 0);
 	}
 }
 
@@ -677,8 +677,8 @@ static inline void blkg_rwstat_add_aux(struct blkg_rwstat *to,
 	int i;
 
 	for (i = 0; i < BLKG_RWSTAT_NR; i++)
-		atomic64_add(atomic64_read(&v.aux_cnt[i]) +
-			     atomic64_read(&from->aux_cnt[i]),
+		atomic64_add_unchecked(atomic64_read_unchecked(&v.aux_cnt[i]) +
+			     atomic64_read_unchecked(&from->aux_cnt[i]),
 			     &to->aux_cnt[i]);
 }
 
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 669e419..3cacec8 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1669,7 +1669,7 @@ struct block_device_operations {
 	void (*swap_slot_free_notify) (struct block_device *, unsigned long);
 	struct module *owner;
 	const struct pr_ops *pr_ops;
-};
+} __do_const;
 
 extern int __blkdev_driver_ioctl(struct block_device *, fmode_t, unsigned int,
 				 unsigned long);
diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h
index afc1343..9735539 100644
--- a/include/linux/blktrace_api.h
+++ b/include/linux/blktrace_api.h
@@ -25,7 +25,7 @@ struct blk_trace {
 	struct dentry *dropped_file;
 	struct dentry *msg_file;
 	struct list_head running_list;
-	atomic_t dropped;
+	atomic_unchecked_t dropped;
 };
 
 extern int blk_trace_ioctl(struct block_device *, unsigned, char __user *);
diff --git a/include/linux/cache.h b/include/linux/cache.h
index 1be04f8..9c2d3e2 100644
--- a/include/linux/cache.h
+++ b/include/linux/cache.h
@@ -26,6 +26,15 @@
  * after mark_rodata_ro() has been called). These are effectively read-only,
  * but may get written to during init, so can't live in .rodata (via "const").
  */
+#ifdef CONFIG_PAX_KERNEXEC
+# ifdef __ro_after_init
+#  error KERNEXEC requires __read_only
+# endif
+# define __read_only __attribute__((__section__(".data..read_only")))
+#else
+# define __read_only __read_mostly
+#endif
+
 #ifndef __ro_after_init
 #define __ro_after_init __attribute__((__section__(".data..ro_after_init")))
 #endif
diff --git a/include/linux/capability.h b/include/linux/capability.h
index 00690ff..b9c971b 100644
--- a/include/linux/capability.h
+++ b/include/linux/capability.h
@@ -229,15 +229,28 @@ static inline bool capable(int cap)
 {
 	return true;
 }
+static inline bool capable_nolog(int cap)
+{
+	return true;
+}
 static inline bool ns_capable(struct user_namespace *ns, int cap)
 {
 	return true;
 }
+static inline bool ns_capable_nolog(struct user_namespace *ns, int cap)
+{
+	return true;
+}
 #endif /* CONFIG_MULTIUSER */
 extern bool capable_wrt_inode_uidgid(const struct inode *inode, int cap);
+extern bool capable_wrt_inode_uidgid_nolog(const struct inode *inode, int cap);
 extern bool file_ns_capable(const struct file *file, struct user_namespace *ns, int cap);
+extern bool capable_nolog(int cap);
+extern bool ns_capable_nolog(struct user_namespace *ns, int cap);
 
 /* audit system wants to get cap info from files as well */
 extern int get_vfs_caps_from_disk(const struct dentry *dentry, struct cpu_vfs_cap_data *cpu_caps);
 
+extern int is_privileged_binary(const struct dentry *dentry);
+
 #endif /* !_LINUX_CAPABILITY_H */
diff --git a/include/linux/cdrom.h b/include/linux/cdrom.h
index 8609d57..86e4d79 100644
--- a/include/linux/cdrom.h
+++ b/include/linux/cdrom.h
@@ -87,7 +87,6 @@ struct cdrom_device_ops {
 
 /* driver specifications */
 	const int capability;   /* capability flags */
-	int n_minors;           /* number of active minor devices */
 	/* handle uniform packets for scsi type devices (scsi,atapi) */
 	int (*generic_packet) (struct cdrom_device_info *,
 			       struct packet_command *);
diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h
index 5b17de6..d75785b 100644
--- a/include/linux/cgroup-defs.h
+++ b/include/linux/cgroup-defs.h
@@ -427,7 +427,7 @@ struct cftype {
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
 	struct lock_class_key	lockdep_key;
 #endif
-};
+} __do_const;
 
 /*
  * Control Group subsystem type.
diff --git a/include/linux/cleancache.h b/include/linux/cleancache.h
index fccf7f4..1d5925e 100644
--- a/include/linux/cleancache.h
+++ b/include/linux/cleancache.h
@@ -35,7 +35,7 @@ struct cleancache_ops {
 	void (*invalidate_page)(int, struct cleancache_filekey, pgoff_t);
 	void (*invalidate_inode)(int, struct cleancache_filekey);
 	void (*invalidate_fs)(int);
-};
+} __no_const;
 
 extern int cleancache_register_ops(const struct cleancache_ops *ops);
 extern void __cleancache_init_fs(struct super_block *);
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index da95258..2d00aec 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -215,6 +215,7 @@ struct clk_ops {
 	void		(*init)(struct clk_hw *hw);
 	int		(*debug_init)(struct clk_hw *hw, struct dentry *dentry);
 };
+typedef struct clk_ops __no_const clk_ops_no_const;
 
 /**
  * struct clk_init_data - holds init data that's common to all clocks and is
diff --git a/include/linux/compat.h b/include/linux/compat.h
index f964ef7..0679632 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -47,14 +47,15 @@
 	COMPAT_SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
 
 #define COMPAT_SYSCALL_DEFINEx(x, name, ...)				\
-	asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))\
-		__attribute__((alias(__stringify(compat_SyS##name))));  \
 	static inline long C_SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
-	asmlinkage long compat_SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__));\
-	asmlinkage long compat_SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__))\
+	static inline asmlinkage long compat_SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__))\
 	{								\
 		return C_SYSC##name(__MAP(x,__SC_DELOUSE,__VA_ARGS__));	\
 	}								\
+	asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))\
+	{								\
+		return compat_SyS##name(__MAP(x,__SC_ARGS,__VA_ARGS__));\
+	}								\
 	static inline long C_SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__))
 
 #ifndef compat_user_stack_pointer
@@ -318,7 +319,7 @@ compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
 			   compat_size_t __user *len_ptr);
 
 asmlinkage long compat_sys_ipc(u32, int, int, u32, compat_uptr_t, u32);
-asmlinkage long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg);
+asmlinkage long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg) __intentional_overflow(0);
 asmlinkage long compat_sys_semctl(int semid, int semnum, int cmd, int arg);
 asmlinkage long compat_sys_msgsnd(int msqid, compat_uptr_t msgp,
 		compat_ssize_t msgsz, int msgflg);
@@ -327,7 +328,7 @@ asmlinkage long compat_sys_msgrcv(int msqid, compat_uptr_t msgp,
 long compat_sys_msgctl(int first, int second, void __user *uptr);
 long compat_sys_shmctl(int first, int second, void __user *uptr);
 long compat_sys_semtimedop(int semid, struct sembuf __user *tsems,
-		unsigned nsems, const struct compat_timespec __user *timeout);
+		compat_long_t nsems, const struct compat_timespec __user *timeout);
 asmlinkage long compat_sys_keyctl(u32 option,
 			      u32 arg2, u32 arg3, u32 arg4, u32 arg5);
 asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32);
@@ -447,7 +448,7 @@ extern int compat_ptrace_request(struct task_struct *child,
 extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 			       compat_ulong_t addr, compat_ulong_t data);
 asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
-				  compat_long_t addr, compat_long_t data);
+				  compat_ulong_t addr, compat_ulong_t data);
 
 asmlinkage long compat_sys_lookup_dcookie(u32, u32, char __user *, compat_size_t);
 /*
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index 3d5202e..d1f59fe 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -116,9 +116,9 @@
  */
 #define __pure			__attribute__((pure))
 #define __aligned(x)		__attribute__((aligned(x)))
-#define __printf(a, b)		__attribute__((format(printf, a, b)))
-#define __scanf(a, b)		__attribute__((format(scanf, a, b)))
-#define __attribute_const__	__attribute__((__const__))
+#define __printf(a, b)		__attribute__((format(printf, a, b))) __nocapture(a, b)
+#define __scanf(a, b)		__attribute__((format(scanf, a, b))) __nocapture(a, b)
+#define __attribute_const__	__attribute__((const))
 #define __maybe_unused		__attribute__((unused))
 #define __always_unused		__attribute__((unused))
 
@@ -184,9 +184,41 @@
 # define __compiletime_warning(message) __attribute__((warning(message)))
 # define __compiletime_error(message) __attribute__((error(message)))
 #endif /* __CHECKER__ */
+
+#define __alloc_size(...)	__attribute((alloc_size(__VA_ARGS__)))
+#define __bos(ptr, arg)		__builtin_object_size((ptr), (arg))
+#define __bos0(ptr)		__bos((ptr), 0)
+#define __bos1(ptr)		__bos((ptr), 1)
 #endif /* GCC_VERSION >= 40300 */
 
 #if GCC_VERSION >= 40500
+
+#ifdef RANDSTRUCT_PLUGIN
+#define __randomize_layout __attribute__((randomize_layout))
+#define __no_randomize_layout __attribute__((no_randomize_layout))
+#endif
+
+#ifdef CONSTIFY_PLUGIN
+#define __no_const __attribute__((no_const))
+#define __do_const __attribute__((do_const))
+#define const_cast(x) (*(typeof((typeof(x))0) *)&(x))
+#endif
+
+#ifdef SIZE_OVERFLOW_PLUGIN
+#define __size_overflow(...) __attribute__((size_overflow(__VA_ARGS__)))
+#define __intentional_overflow(...) __attribute__((intentional_overflow(__VA_ARGS__)))
+#endif
+
+#ifndef __CHECKER__
+#ifdef LATENT_ENTROPY_PLUGIN
+#define __latent_entropy __attribute__((latent_entropy))
+#endif
+#endif
+
+#ifdef INITIFY_PLUGIN
+#define __nocapture(...) __attribute__((nocapture(__VA_ARGS__)))
+#endif
+
 /*
  * Mark a position in code as unreachable.  This can be used to
  * suppress control flow warnings after asm blocks that transfer
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index b5ff988..c71686f 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -5,11 +5,14 @@
 
 #ifdef __CHECKER__
 # define __user		__attribute__((noderef, address_space(1)))
+# define __force_user	__force __user
 # define __kernel	__attribute__((address_space(0)))
+# define __force_kernel	__force __kernel
 # define __safe		__attribute__((safe))
 # define __force	__attribute__((force))
 # define __nocast	__attribute__((nocast))
 # define __iomem	__attribute__((noderef, address_space(2)))
+# define __force_iomem	__force __iomem
 # define __must_hold(x)	__attribute__((context(x,1,1)))
 # define __acquires(x)	__attribute__((context(x,0,1)))
 # define __releases(x)	__attribute__((context(x,1,0)))
@@ -17,35 +20,80 @@
 # define __release(x)	__context__(x,-1)
 # define __cond_lock(x,c)	((c) ? ({ __acquire(x); 1; }) : 0)
 # define __percpu	__attribute__((noderef, address_space(3)))
+# define __force_percpu	__force __percpu
 # define __pmem		__attribute__((noderef, address_space(5)))
+# define __force_pmem	__force __pmem
 #ifdef CONFIG_SPARSE_RCU_POINTER
 # define __rcu		__attribute__((noderef, address_space(4)))
+# define __force_rcu	__force __rcu
 #else /* CONFIG_SPARSE_RCU_POINTER */
 # define __rcu
+# define __force_rcu
 #endif /* CONFIG_SPARSE_RCU_POINTER */
 # define __private	__attribute__((noderef))
 extern void __chk_user_ptr(const volatile void __user *);
 extern void __chk_io_ptr(const volatile void __iomem *);
 # define ACCESS_PRIVATE(p, member) (*((typeof((p)->member) __force *) &(p)->member))
 #else /* __CHECKER__ */
-# define __user
-# define __kernel
+# ifdef CHECKER_PLUGIN
+#  ifdef CHECKER_PLUGIN_USER
+//#  define __user
+//#  define __force_user
+//#  define __kernel
+//#  define __force_kernel
+#  else
+#  define __user
+#  define __force_user
+#  define __kernel
+#  define __force_kernel
+#  endif
+#  ifdef CHECKER_PLUGIN_CONTEXT
+#  define __must_hold(x)	__attribute__((context(#x,1,1)))
+#  define __acquires(x)	__attribute__((context(#x,0,1)))
+#  define __releases(x)	__attribute__((context(#x,1,0)))
+#  define __acquire(x)	__context__(#x,1)
+#  define __release(x)	__context__(#x,-1)
+#  define __cond_lock(x,c)	((c) ? ({ __acquire(x); 1; }) : 0)
+#  define __cond_unlock(x,c)	((c) ? ({ __release(x); 1; }) : 0)
+#  else
+#  define __must_hold(x)
+#  define __acquires(x)
+#  define __releases(x)
+#  define __acquire(x) (void)0
+#  define __release(x) (void)0
+#  define __cond_lock(x,c) (c)
+#  define __cond_unlock(x,c) (c)
+#  endif
+# else
+#  ifdef STRUCTLEAK_PLUGIN
+#   define __user __attribute__((user))
+#  else
+#   define __user
+#  endif
+#  define __force_user
+#  define __kernel
+#  define __force_kernel
+#  define __must_hold(x)
+#  define __acquires(x)
+#  define __releases(x)
+#  define __acquire(x) (void)0
+#  define __release(x) (void)0
+#  define __cond_lock(x,c) (c)
+# endif
 # define __safe
 # define __force
 # define __nocast
 # define __iomem
+# define __force_iomem
 # define __chk_user_ptr(x) (void)0
 # define __chk_io_ptr(x) (void)0
 # define __builtin_warning(x, y...) (1)
-# define __must_hold(x)
-# define __acquires(x)
-# define __releases(x)
-# define __acquire(x) (void)0
-# define __release(x) (void)0
-# define __cond_lock(x,c) (c)
 # define __percpu
+# define __force_percpu
 # define __rcu
+# define __force_rcu
 # define __pmem
+# define __force_pmem
 # define __private
 # define ACCESS_PRIVATE(p, member) ((p)->member)
 #endif /* __CHECKER__ */
@@ -202,29 +250,20 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
 
 #include <uapi/linux/types.h>
 
-#define __READ_ONCE_SIZE						\
-({									\
-	switch (size) {							\
-	case 1: *(__u8 *)res = *(volatile __u8 *)p; break;		\
-	case 2: *(__u16 *)res = *(volatile __u16 *)p; break;		\
-	case 4: *(__u32 *)res = *(volatile __u32 *)p; break;		\
-	case 8: *(__u64 *)res = *(volatile __u64 *)p; break;		\
-	default:							\
-		barrier();						\
-		__builtin_memcpy((void *)res, (const void *)p, size);	\
-		barrier();						\
-	}								\
-})
-
-static __always_inline
-void __read_once_size(const volatile void *p, void *res, int size)
-{
-	__READ_ONCE_SIZE;
-}
-
 #ifdef CONFIG_KASAN
 /*
- * This function is not 'inline' because __no_sanitize_address confilcts
+ * Use READ_ONCE_NOCHECK() instead of READ_ONCE() if you need
+ * to hide memory access from KASAN.
+ */
+#define READ_ONCE_NOCHECK(x)					\
+({								\
+	union { typeof(x) __val; char __c[sizeof(x)]; } __u;	\
+	__read_once_size_nocheck(&(x), __u.__c, sizeof(x));	\
+	__u.__val;						\
+})
+
+/*
+ * This function is not 'inline' because __no_sanitize_address conflicts
  * with inlining. Attempt to inline it may cause a build failure.
  * 	https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67368
  * '__maybe_unused' allows us to avoid defined-but-not-used warnings.
@@ -232,29 +271,20 @@ void __read_once_size(const volatile void *p, void *res, int size)
 static __no_sanitize_address __maybe_unused
 void __read_once_size_nocheck(const volatile void *p, void *res, int size)
 {
-	__READ_ONCE_SIZE;
-}
-#else
-static __always_inline
-void __read_once_size_nocheck(const volatile void *p, void *res, int size)
-{
-	__READ_ONCE_SIZE;
-}
-#endif
-
-static __always_inline void __write_once_size(volatile void *p, void *res, int size)
-{
 	switch (size) {
-	case 1: *(volatile __u8 *)p = *(__u8 *)res; break;
-	case 2: *(volatile __u16 *)p = *(__u16 *)res; break;
-	case 4: *(volatile __u32 *)p = *(__u32 *)res; break;
-	case 8: *(volatile __u64 *)p = *(__u64 *)res; break;
+	case 1: *(__u8 *)res = *(const volatile __u8 *)p; break;
+	case 2: *(__u16 *)res = *(const volatile __u16 *)p; break;
+	case 4: *(__u32 *)res = *(const volatile __u32 *)p; break;
+	case 8: *(__u64 *)res = *(const volatile __u64 *)p; break;
 	default:
 		barrier();
-		__builtin_memcpy((void *)p, (const void *)res, size);
+		__builtin_memcpy(res, (const void *)p, size);
 		barrier();
 	}
 }
+#else
+#define READ_ONCE_NOCHECK(x) READ_ONCE(x)
+#endif
 
 /*
  * Prevent the compiler from merging or refetching reads or writes. The
@@ -279,29 +309,15 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s
  * required ordering.
  */
 
-#define __READ_ONCE(x, check)						\
-({									\
-	union { typeof(x) __val; char __c[1]; } __u;			\
-	if (check)							\
-		__read_once_size(&(x), __u.__c, sizeof(x));		\
-	else								\
-		__read_once_size_nocheck(&(x), __u.__c, sizeof(x));	\
-	__u.__val;							\
+#define READ_ONCE(x) ({					\
+	typeof(x) __val = *(volatile typeof(x) *)&(x);	\
+	__val;						\
 })
-#define READ_ONCE(x) __READ_ONCE(x, 1)
 
-/*
- * Use READ_ONCE_NOCHECK() instead of READ_ONCE() if you need
- * to hide memory access from KASAN.
- */
-#define READ_ONCE_NOCHECK(x) __READ_ONCE(x, 0)
-
-#define WRITE_ONCE(x, val) \
-({							\
-	union { typeof(x) __val; char __c[1]; } __u =	\
-		{ .__val = (__force typeof(x)) (val) }; \
-	__write_once_size(&(x), __u.__c, sizeof(x));	\
-	__u.__val;					\
+#define WRITE_ONCE(x, val) ({				\
+	typeof(x) __val = (val);			\
+	(x) = *(volatile typeof(x) *)&__val;		\
+	__val;						\
 })
 
 /**
@@ -421,6 +437,42 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s
 # define __attribute_const__	/* unimplemented */
 #endif
 
+#ifndef __randomize_layout
+# define __randomize_layout
+#endif
+
+#ifndef __no_randomize_layout
+# define __no_randomize_layout
+#endif
+
+#ifndef __no_const
+# define __no_const
+#endif
+
+#ifndef __do_const
+# define __do_const
+#endif
+
+#ifndef __size_overflow
+# define __size_overflow(...)
+#endif
+
+#ifndef __intentional_overflow
+# define __intentional_overflow(...)
+#endif
+
+#ifndef __latent_entropy
+# define __latent_entropy
+#endif
+
+#ifndef __nocapture
+# define __nocapture(...)
+#endif
+
+#ifndef const_cast
+# define const_cast(x)	(x)
+#endif
+
 /*
  * Tell gcc if a function is cold. The compiler will assume any path
  * directly leading to the call is unlikely.
@@ -430,6 +482,22 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s
 #define __cold
 #endif
 
+#ifndef __alloc_size
+#define __alloc_size(...)
+#endif
+
+#ifndef __bos
+#define __bos(ptr, arg)
+#endif
+
+#ifndef __bos0
+#define __bos0(ptr)
+#endif
+
+#ifndef __bos1
+#define __bos1(ptr)
+#endif
+
 /* Simple shorthand for a section definition */
 #ifndef __section
 # define __section(S) __attribute__ ((__section__(#S)))
@@ -452,6 +520,8 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s
 # define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b))
 #endif
 
+#define __type_is_unsigned(t) (__same_type((t)0, 0UL) || __same_type((t)0, 0U) || __same_type((t)0, (unsigned short)0) || __same_type((t)0, (unsigned char)0))
+
 /* Is this type a native word size -- useful for atomic operations */
 #ifndef __native_word
 # define __native_word(t) (sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || sizeof(t) == sizeof(int) || sizeof(t) == sizeof(long))
@@ -531,8 +601,9 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s
  */
 #define __ACCESS_ONCE(x) ({ \
 	 __maybe_unused typeof(x) __var = (__force typeof(x)) 0; \
-	(volatile typeof(x) *)&(x); })
+	(volatile const typeof(x) *)&(x); })
 #define ACCESS_ONCE(x) (*__ACCESS_ONCE(x))
+#define ACCESS_ONCE_RW(x) (*(volatile typeof(x) *)&(x))
 
 /**
  * lockless_dereference() - safely load a pointer for later dereference
diff --git a/include/linux/configfs.h b/include/linux/configfs.h
index d9d6a9d..489772c 100644
--- a/include/linux/configfs.h
+++ b/include/linux/configfs.h
@@ -136,7 +136,7 @@ struct configfs_attribute {
 	umode_t			ca_mode;
 	ssize_t (*show)(struct config_item *, char *);
 	ssize_t (*store)(struct config_item *, const char *, size_t);
-};
+} __do_const;
 
 #define CONFIGFS_ATTR(_pfx, _name)			\
 static struct configfs_attribute _pfx##attr_##_name = {	\
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 718e872..e16712a 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -201,10 +201,11 @@ __ATTR(_name, 0644, show_##_name, store_##_name)
 struct global_attr {
 	struct attribute attr;
 	ssize_t (*show)(struct kobject *kobj,
-			struct attribute *attr, char *buf);
-	ssize_t (*store)(struct kobject *a, struct attribute *b,
+			struct kobj_attribute *attr, char *buf);
+	ssize_t (*store)(struct kobject *a, struct kobj_attribute *b,
 			 const char *c, size_t count);
 };
+typedef struct global_attr __no_const global_attr_no_const;
 
 #define define_one_global_ro(_name)		\
 static struct global_attr _name =		\
@@ -275,7 +276,7 @@ struct cpufreq_driver {
 	/* platform specific boost support code */
 	bool		boost_enabled;
 	int		(*set_boost)(int state);
-};
+} __do_const;
 
 /* flags */
 #define CPUFREQ_STICKY		(1 << 0)	/* driver isn't removed even if
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index 786ad32..09d1fb1 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -59,7 +59,8 @@ struct cpuidle_state {
 	void (*enter_freeze) (struct cpuidle_device *dev,
 			      struct cpuidle_driver *drv,
 			      int index);
-};
+} __do_const;
+typedef struct cpuidle_state __no_const cpuidle_state_no_const;
 
 /* Idle State Flags */
 #define CPUIDLE_FLAG_COUPLED	(0x02) /* state applies to multiple cpus */
@@ -234,7 +235,7 @@ struct cpuidle_governor {
 	void (*reflect)		(struct cpuidle_device *dev, int index);
 
 	struct module 		*owner;
-};
+} __do_const;
 
 #ifdef CONFIG_CPU_IDLE
 extern int cpuidle_register_governor(struct cpuidle_governor *gov);
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index 40cee6b..daa215f 100644
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -131,17 +131,17 @@ static inline unsigned int cpumask_first(const struct cpumask *srcp)
 }
 
 /* Valid inputs for n are -1 and 0. */
-static inline unsigned int cpumask_next(int n, const struct cpumask *srcp)
+static inline unsigned int __intentional_overflow(-1) cpumask_next(int n, const struct cpumask *srcp)
 {
 	return n+1;
 }
 
-static inline unsigned int cpumask_next_zero(int n, const struct cpumask *srcp)
+static inline unsigned int __intentional_overflow(-1) cpumask_next_zero(int n, const struct cpumask *srcp)
 {
 	return n+1;
 }
 
-static inline unsigned int cpumask_next_and(int n,
+static inline unsigned int __intentional_overflow(-1) cpumask_next_and(int n,
 					    const struct cpumask *srcp,
 					    const struct cpumask *andp)
 {
@@ -185,7 +185,7 @@ static inline unsigned int cpumask_first(const struct cpumask *srcp)
  *
  * Returns >= nr_cpu_ids if no further cpus set.
  */
-static inline unsigned int cpumask_next(int n, const struct cpumask *srcp)
+static inline unsigned int __intentional_overflow(-1) cpumask_next(int n, const struct cpumask *srcp)
 {
 	/* -1 is a legal arg here. */
 	if (n != -1)
@@ -200,7 +200,7 @@ static inline unsigned int cpumask_next(int n, const struct cpumask *srcp)
  *
  * Returns >= nr_cpu_ids if no further cpus unset.
  */
-static inline unsigned int cpumask_next_zero(int n, const struct cpumask *srcp)
+static inline unsigned int __intentional_overflow(-1) cpumask_next_zero(int n, const struct cpumask *srcp)
 {
 	/* -1 is a legal arg here. */
 	if (n != -1)
@@ -208,7 +208,7 @@ static inline unsigned int cpumask_next_zero(int n, const struct cpumask *srcp)
 	return find_next_zero_bit(cpumask_bits(srcp), nr_cpumask_bits, n+1);
 }
 
-int cpumask_next_and(int n, const struct cpumask *, const struct cpumask *);
+int cpumask_next_and(int n, const struct cpumask *, const struct cpumask *) __intentional_overflow(-1);
 int cpumask_any_but(const struct cpumask *mask, unsigned int cpu);
 unsigned int cpumask_local_spread(unsigned int i, int node);
 
@@ -475,7 +475,7 @@ static inline bool cpumask_full(const struct cpumask *srcp)
  * cpumask_weight - Count of bits in *srcp
  * @srcp: the cpumask to count bits (< nr_cpu_ids) in.
  */
-static inline unsigned int cpumask_weight(const struct cpumask *srcp)
+static inline unsigned int __intentional_overflow(-1) cpumask_weight(const struct cpumask *srcp)
 {
 	return bitmap_weight(cpumask_bits(srcp), nr_cpumask_bits);
 }
diff --git a/include/linux/cred.h b/include/linux/cred.h
index 257db64..a73cf86 100644
--- a/include/linux/cred.h
+++ b/include/linux/cred.h
@@ -35,7 +35,7 @@ struct group_info {
 	int		nblocks;
 	kgid_t		small_block[NGROUPS_SMALL];
 	kgid_t		*blocks[0];
-};
+} __randomize_layout;
 
 /**
  * get_group_info - Get a reference to a group info structure
@@ -153,7 +153,7 @@ struct cred {
 	struct user_namespace *user_ns; /* user_ns the caps and keyrings are relative to. */
 	struct group_info *group_info;	/* supplementary groups for euid/fsgid */
 	struct rcu_head	rcu;		/* RCU deletion hook */
-};
+} __randomize_layout;
 
 extern void __put_cred(struct cred *);
 extern void exit_creds(struct task_struct *);
@@ -211,6 +211,9 @@ static inline void validate_creds_for_do_exit(struct task_struct *tsk)
 static inline void validate_process_creds(void)
 {
 }
+static inline void validate_task_creds(struct task_struct *task)
+{
+}
 #endif
 
 static inline bool cap_ambient_invariant_ok(const struct cred *cred)
@@ -355,6 +358,7 @@ static inline void put_cred(const struct cred *_cred)
 
 #define task_uid(task)		(task_cred_xxx((task), uid))
 #define task_euid(task)		(task_cred_xxx((task), euid))
+#define task_securebits(task)	(task_cred_xxx((task), securebits))
 
 #define current_cred_xxx(xxx)			\
 ({						\
diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index 99c9489..55a6de8 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -510,7 +510,7 @@ struct cipher_tfm {
 	                  const u8 *key, unsigned int keylen);
 	void (*cit_encrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
 	void (*cit_decrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
-};
+} __no_const;
 
 struct compress_tfm {
 	int (*cot_compress)(struct crypto_tfm *tfm,
@@ -519,7 +519,7 @@ struct compress_tfm {
 	int (*cot_decompress)(struct crypto_tfm *tfm,
 	                      const u8 *src, unsigned int slen,
 	                      u8 *dst, unsigned int *dlen);
-};
+} __no_const;
 
 #define crt_ablkcipher	crt_u.ablkcipher
 #define crt_blkcipher	crt_u.blkcipher
diff --git a/include/linux/ctype.h b/include/linux/ctype.h
index 653589e..4ef254a 100644
--- a/include/linux/ctype.h
+++ b/include/linux/ctype.h
@@ -56,7 +56,7 @@ static inline unsigned char __toupper(unsigned char c)
  * Fast implementation of tolower() for internal usage. Do not use in your
  * code.
  */
-static inline char _tolower(const char c)
+static inline unsigned char _tolower(const unsigned char c)
 {
 	return c | 0x20;
 }
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 7e9422c..a1181c6 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -123,6 +123,9 @@ struct dentry {
 	unsigned long d_time;		/* used by d_revalidate */
 	void *d_fsdata;			/* fs-specific data */
 
+#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
+	atomic_t chroot_refcnt;		/* tracks use of directory in chroot */
+#endif
 	struct list_head d_lru;		/* LRU list */
 	struct list_head d_child;	/* child of parent list */
 	struct list_head d_subdirs;	/* our children */
@@ -133,7 +136,7 @@ struct dentry {
 		struct hlist_node d_alias;	/* inode alias list */
 	 	struct rcu_head d_rcu;
 	} d_u;
-};
+} __randomize_layout;
 
 /*
  * dentry->d_lock spinlock nesting subclasses:
@@ -296,7 +299,7 @@ extern struct dentry *__d_lookup_rcu(const struct dentry *parent,
 
 static inline unsigned d_count(const struct dentry *dentry)
 {
-	return dentry->d_lockref.count;
+	return __lockref_read(&dentry->d_lockref);
 }
 
 /*
@@ -325,7 +328,7 @@ extern char *dentry_path(struct dentry *, char *, int);
 static inline struct dentry *dget_dlock(struct dentry *dentry)
 {
 	if (dentry)
-		dentry->d_lockref.count++;
+		__lockref_inc(&dentry->d_lockref);
 	return dentry;
 }
 
diff --git a/include/linux/decompress/mm.h b/include/linux/decompress/mm.h
index 7925bf0..d5143d2 100644
--- a/include/linux/decompress/mm.h
+++ b/include/linux/decompress/mm.h
@@ -77,7 +77,7 @@ static void free(void *where)
  * warnings when not needed (indeed large_malloc / large_free are not
  * needed by inflate */
 
-#define malloc(a) kmalloc(a, GFP_KERNEL)
+#define malloc(a) kmalloc((a), GFP_KERNEL)
 #define free(a) kfree(a)
 
 #define large_malloc(a) vmalloc(a)
diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h
index 6fa02a2..aac3093 100644
--- a/include/linux/devfreq.h
+++ b/include/linux/devfreq.h
@@ -117,7 +117,7 @@ struct devfreq_governor {
 	int (*get_target_freq)(struct devfreq *this, unsigned long *freq);
 	int (*event_handler)(struct devfreq *devfreq,
 				unsigned int event, void *data);
-};
+} __do_const;
 
 /**
  * struct devfreq - Device devfreq structure
diff --git a/include/linux/device.h b/include/linux/device.h
index 002c597..b8d6f1a 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -346,7 +346,7 @@ struct subsys_interface {
 	struct list_head node;
 	int (*add_dev)(struct device *dev, struct subsys_interface *sif);
 	void (*remove_dev)(struct device *dev, struct subsys_interface *sif);
-};
+} __do_const;
 
 int subsys_interface_register(struct subsys_interface *sif);
 void subsys_interface_unregister(struct subsys_interface *sif);
@@ -542,7 +542,7 @@ struct device_type {
 	void (*release)(struct device *dev);
 
 	const struct dev_pm_ops *pm;
-};
+} __do_const;
 
 /* interface for exporting device attributes */
 struct device_attribute {
@@ -552,11 +552,12 @@ struct device_attribute {
 	ssize_t (*store)(struct device *dev, struct device_attribute *attr,
 			 const char *buf, size_t count);
 };
+typedef struct device_attribute __no_const device_attribute_no_const;
 
 struct dev_ext_attribute {
 	struct device_attribute attr;
 	void *var;
-};
+} __do_const;
 
 ssize_t device_show_ulong(struct device *dev, struct device_attribute *attr,
 			  char *buf);
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 9ea9aba..16b56d0 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -68,7 +68,7 @@ struct dma_map_ops {
 	u64 (*get_required_mask)(struct device *dev);
 #endif
 	int is_phys;
-};
+} __do_const;
 
 extern struct dma_map_ops dma_noop_ops;
 
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 1626474..5a604e6 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -1123,6 +1123,7 @@ struct efivar_operations {
 	efi_set_variable_t *set_variable_nonblocking;
 	efi_query_variable_store_t *query_variable_store;
 };
+typedef struct efivar_operations __no_const efivar_operations_no_const;
 
 struct efivars {
 	/*
diff --git a/include/linux/elf.h b/include/linux/elf.h
index 20fa8d8..3d0dd18 100644
--- a/include/linux/elf.h
+++ b/include/linux/elf.h
@@ -29,6 +29,7 @@ extern Elf32_Dyn _DYNAMIC [];
 #define elf_note	elf32_note
 #define elf_addr_t	Elf32_Off
 #define Elf_Half	Elf32_Half
+#define elf_dyn		Elf32_Dyn
 
 #else
 
@@ -39,6 +40,7 @@ extern Elf64_Dyn _DYNAMIC [];
 #define elf_note	elf64_note
 #define elf_addr_t	Elf64_Off
 #define Elf_Half	Elf64_Half
+#define elf_dyn		Elf64_Dyn
 
 #endif
 
diff --git a/include/linux/err.h b/include/linux/err.h
index 56762ab..bc4a3e3 100644
--- a/include/linux/err.h
+++ b/include/linux/err.h
@@ -20,12 +20,12 @@
 
 #define IS_ERR_VALUE(x) unlikely((x) >= (unsigned long)-MAX_ERRNO)
 
-static inline void * __must_check ERR_PTR(long error)
+static inline void * __must_check __intentional_overflow(-1) ERR_PTR(long error)
 {
 	return (void *) error;
 }
 
-static inline long __must_check PTR_ERR(__force const void *ptr)
+static inline long __must_check __intentional_overflow(-1) PTR_ERR(__force const void *ptr)
 {
 	return (long) ptr;
 }
diff --git a/include/linux/extcon.h b/include/linux/extcon.h
index 7abf674..c0a73a0 100644
--- a/include/linux/extcon.h
+++ b/include/linux/extcon.h
@@ -123,7 +123,7 @@ struct extcon_dev {
 	/* /sys/class/extcon/.../mutually_exclusive/... */
 	struct attribute_group attr_g_muex;
 	struct attribute **attrs_muex;
-	struct device_attribute *d_attrs_muex;
+	device_attribute_no_const *d_attrs_muex;
 };
 
 /**
diff --git a/include/linux/fb.h b/include/linux/fb.h
index dfe8835..4e9e29a 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -320,7 +320,8 @@ struct fb_ops {
 	/* called at KDB enter and leave time to prepare the console */
 	int (*fb_debug_enter)(struct fb_info *info);
 	int (*fb_debug_leave)(struct fb_info *info);
-};
+} __do_const;
+typedef struct fb_ops __no_const fb_ops_no_const;
 
 #ifdef CONFIG_FB_TILEBLITTING
 #define FB_TILE_CURSOR_NONE        0
diff --git a/include/linux/fdtable.h b/include/linux/fdtable.h
index 5295535..9852c7e 100644
--- a/include/linux/fdtable.h
+++ b/include/linux/fdtable.h
@@ -105,7 +105,7 @@ struct files_struct *get_files_struct(struct task_struct *);
 void put_files_struct(struct files_struct *fs);
 void reset_files_struct(struct files_struct *);
 int unshare_files(struct files_struct **);
-struct files_struct *dup_fd(struct files_struct *, int *);
+struct files_struct *dup_fd(struct files_struct *, int *) __latent_entropy;
 void do_close_on_exec(struct files_struct *);
 int iterate_fd(struct files_struct *, unsigned,
 		int (*)(const void *, struct file *, unsigned),
diff --git a/include/linux/firewire.h b/include/linux/firewire.h
index d4b7683..9feb066 100644
--- a/include/linux/firewire.h
+++ b/include/linux/firewire.h
@@ -451,7 +451,7 @@ struct fw_iso_context {
 
 struct fw_iso_context *fw_iso_context_create(struct fw_card *card,
 		int type, int channel, int speed, size_t header_size,
-		fw_iso_callback_t callback, void *callback_data);
+		void *callback, void *callback_data);
 int fw_iso_context_set_channels(struct fw_iso_context *ctx, u64 *channels);
 int fw_iso_context_queue(struct fw_iso_context *ctx,
 			 struct fw_iso_packet *packet,
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 70e61b5..facf0ed 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -444,7 +444,7 @@ struct address_space {
 	spinlock_t		private_lock;	/* for use by the address_space */
 	struct list_head	private_list;	/* ditto */
 	void			*private_data;	/* ditto */
-} __attribute__((aligned(sizeof(long))));
+} __attribute__((aligned(sizeof(long)))) __randomize_layout;
 	/*
 	 * On most architectures that alignment is already the case; but
 	 * must be enforced here for CRIS, to let the least significant bit
@@ -487,7 +487,7 @@ struct block_device {
 	int			bd_fsfreeze_count;
 	/* Mutex for freeze */
 	struct mutex		bd_fsfreeze_mutex;
-};
+} __randomize_layout;
 
 /*
  * Radix-tree tags, for tagging dirty and writeback pages within the pagecache
@@ -686,7 +686,7 @@ struct inode {
 #endif
 
 	void			*i_private; /* fs or device private pointer */
-};
+} __randomize_layout;
 
 static inline int inode_unhashed(struct inode *inode)
 {
@@ -906,7 +906,7 @@ struct file {
 	struct list_head	f_tfile_llink;
 #endif /* #ifdef CONFIG_EPOLL */
 	struct address_space	*f_mapping;
-} __attribute__((aligned(4)));	/* lest something weird decides that 2 is OK */
+} __attribute__((aligned(4))) __randomize_layout;	/* lest something weird decides that 2 is OK */
 
 struct file_handle {
 	__u32 handle_bytes;
@@ -1041,7 +1041,7 @@ struct file_lock {
 			int state;		/* state of grant or error if -ve */
 		} afs;
 	} fl_u;
-};
+} __randomize_layout;
 
 struct file_lock_context {
 	spinlock_t		flc_lock;
@@ -1419,7 +1419,7 @@ struct super_block {
 	/* s_inode_list_lock protects s_inodes */
 	spinlock_t		s_inode_list_lock ____cacheline_aligned_in_smp;
 	struct list_head	s_inodes;	/* all inodes */
-};
+} __randomize_layout;
 
 extern struct timespec current_fs_time(struct super_block *sb);
 
@@ -1676,7 +1676,8 @@ struct file_operations {
 			u64);
 	ssize_t (*dedupe_file_range)(struct file *, u64, u64, struct file *,
 			u64);
-};
+} __do_const __randomize_layout;
+typedef struct file_operations __no_const file_operations_no_const;
 
 struct inode_operations {
 	struct dentry * (*lookup) (struct inode *,struct dentry *, unsigned int);
@@ -2400,7 +2401,7 @@ extern int register_chrdev_region(dev_t, unsigned, const char *);
 extern int __register_chrdev(unsigned int major, unsigned int baseminor,
 			     unsigned int count, const char *name,
 			     const struct file_operations *fops);
-extern void __unregister_chrdev(unsigned int major, unsigned int baseminor,
+extern __nocapture(4) void __unregister_chrdev(unsigned int major, unsigned int baseminor,
 				unsigned int count, const char *name);
 extern void unregister_chrdev_region(dev_t, unsigned);
 extern void chrdev_show(struct seq_file *,off_t);
@@ -3107,4 +3108,14 @@ static inline bool dir_relax(struct inode *inode)
 extern bool path_noexec(const struct path *path);
 extern void inode_nohighmem(struct inode *inode);
 
+static inline bool is_sidechannel_device(const struct inode *inode)
+{
+#ifdef CONFIG_GRKERNSEC_DEVICE_SIDECHANNEL
+	umode_t mode = inode->i_mode;
+	return ((S_ISCHR(mode) || S_ISBLK(mode)) && (mode & (S_IROTH | S_IWOTH)));
+#else
+	return false;
+#endif
+}
+
 #endif /* _LINUX_FS_H */
diff --git a/include/linux/fs_struct.h b/include/linux/fs_struct.h
index 0efc3e6..fd23610 100644
--- a/include/linux/fs_struct.h
+++ b/include/linux/fs_struct.h
@@ -6,13 +6,13 @@
 #include <linux/seqlock.h>
 
 struct fs_struct {
-	int users;
+	atomic_t users;
 	spinlock_t lock;
 	seqcount_t seq;
 	int umask;
 	int in_exec;
 	struct path root, pwd;
-};
+} __randomize_layout;
 
 extern struct kmem_cache *fs_cachep;
 
diff --git a/include/linux/fscache-cache.h b/include/linux/fscache-cache.h
index 604e152..5954d0d 100644
--- a/include/linux/fscache-cache.h
+++ b/include/linux/fscache-cache.h
@@ -117,7 +117,7 @@ struct fscache_operation {
 	fscache_operation_release_t release;
 };
 
-extern atomic_t fscache_op_debug_id;
+extern atomic_unchecked_t fscache_op_debug_id;
 extern void fscache_op_work_func(struct work_struct *work);
 
 extern void fscache_enqueue_operation(struct fscache_operation *);
diff --git a/include/linux/fscache.h b/include/linux/fscache.h
index 115bb81..e7b812b 100644
--- a/include/linux/fscache.h
+++ b/include/linux/fscache.h
@@ -152,7 +152,7 @@ struct fscache_cookie_def {
 	 * - this is mandatory for any object that may have data
 	 */
 	void (*now_uncached)(void *cookie_netfs_data);
-};
+} __do_const;
 
 /*
  * fscache cached network filesystem type
diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h
index 0141f25..eb29c30 100644
--- a/include/linux/fsnotify.h
+++ b/include/linux/fsnotify.h
@@ -188,6 +188,9 @@ static inline void fsnotify_access(struct file *file)
 	struct inode *inode = file_inode(file);
 	__u32 mask = FS_ACCESS;
 
+	if (is_sidechannel_device(inode))
+		return;
+
 	if (S_ISDIR(inode->i_mode))
 		mask |= FS_ISDIR;
 
@@ -206,6 +209,9 @@ static inline void fsnotify_modify(struct file *file)
 	struct inode *inode = file_inode(file);
 	__u32 mask = FS_MODIFY;
 
+	if (is_sidechannel_device(inode))
+		return;
+
 	if (S_ISDIR(inode->i_mode))
 		mask |= FS_ISDIR;
 
@@ -308,7 +314,7 @@ static inline void fsnotify_change(struct dentry *dentry, unsigned int ia_valid)
  */
 static inline const unsigned char *fsnotify_oldname_init(const unsigned char *name)
 {
-	return kstrdup(name, GFP_KERNEL);
+	return (const unsigned char *)kstrdup((const char *)name, GFP_KERNEL);
 }
 
 /*
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index 5c70676..0109dd5 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -208,7 +208,7 @@ struct gendisk {
 	struct kobject *slave_dir;
 
 	struct timer_rand_state *random;
-	atomic_t sync_io;		/* RAID */
+	atomic_unchecked_t sync_io;	/* RAID */
 	struct disk_events *ev;
 #ifdef  CONFIG_BLK_DEV_INTEGRITY
 	struct kobject integrity_kobj;
@@ -450,7 +450,7 @@ extern void disk_flush_events(struct gendisk *disk, unsigned int mask);
 extern unsigned int disk_clear_events(struct gendisk *disk, unsigned int mask);
 
 /* drivers/char/random.c */
-extern void add_disk_randomness(struct gendisk *disk);
+extern void add_disk_randomness(struct gendisk *disk) __latent_entropy;
 extern void rand_initialize_disk(struct gendisk *disk);
 
 static inline sector_t get_start_sect(struct block_device *bdev)
diff --git a/include/linux/genl_magic_func.h b/include/linux/genl_magic_func.h
index 667c311..abac2a7 100644
--- a/include/linux/genl_magic_func.h
+++ b/include/linux/genl_magic_func.h
@@ -246,7 +246,7 @@ const char *CONCAT_(GENL_MAGIC_FAMILY, _genl_cmd_to_str)(__u8 cmd)
 },
 
 #define ZZZ_genl_ops		CONCAT_(GENL_MAGIC_FAMILY, _genl_ops)
-static struct genl_ops ZZZ_genl_ops[] __read_mostly = {
+static struct genl_ops ZZZ_genl_ops[] = {
 #include GENL_MAGIC_INCLUDE_FILE
 };
 
diff --git a/include/linux/genl_magic_struct.h b/include/linux/genl_magic_struct.h
index eecd19b..391d1957 100644
--- a/include/linux/genl_magic_struct.h
+++ b/include/linux/genl_magic_struct.h
@@ -76,8 +76,8 @@ extern void CONCAT_(GENL_MAGIC_FAMILY, _genl_unregister)(void);
 	__field(attr_nr, attr_flag, name, NLA_U32, __u32, \
 			nla_get_u32, nla_put_u32, false)
 #define __s32_field(attr_nr, attr_flag, name)	\
-	__field(attr_nr, attr_flag, name, NLA_U32, __s32, \
-			nla_get_u32, nla_put_u32, true)
+	__field(attr_nr, attr_flag, name, NLA_S32, __s32, \
+			nla_get_s32, nla_put_s32, true)
 #define __u64_field(attr_nr, attr_flag, name)	\
 	__field(attr_nr, attr_flag, name, NLA_U64, __u64, \
 			nla_get_u64, nla_put_u64, false)
diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index 570383a..8fb6742b 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -41,6 +41,13 @@ struct vm_area_struct;
 #define ___GFP_OTHER_NODE	0x800000u
 #define ___GFP_WRITE		0x1000000u
 #define ___GFP_KSWAPD_RECLAIM	0x2000000u
+
+#ifdef CONFIG_PAX_USERCOPY_SLABS
+#define ___GFP_USERCOPY		0x4000000u
+#else
+#define ___GFP_USERCOPY		0
+#endif
+
 /* If the above are modified, __GFP_BITS_SHIFT may need updating */
 
 /*
@@ -86,6 +93,7 @@ struct vm_area_struct;
 #define __GFP_HARDWALL   ((__force gfp_t)___GFP_HARDWALL)
 #define __GFP_THISNODE	((__force gfp_t)___GFP_THISNODE)
 #define __GFP_ACCOUNT	((__force gfp_t)___GFP_ACCOUNT)
+#define __GFP_USERCOPY	((__force gfp_t)___GFP_USERCOPY)/* Allocator intends to copy page to/from userland */
 
 /*
  * Watermark modifiers -- controls access to emergency reserves
@@ -188,7 +196,7 @@ struct vm_area_struct;
 #define __GFP_OTHER_NODE ((__force gfp_t)___GFP_OTHER_NODE)
 
 /* Room for N __GFP_FOO bits */
-#define __GFP_BITS_SHIFT 26
+#define __GFP_BITS_SHIFT 27
 #define __GFP_BITS_MASK ((__force gfp_t)((1 << __GFP_BITS_SHIFT) - 1))
 
 /*
@@ -259,6 +267,8 @@ struct vm_area_struct;
 			 __GFP_NOMEMALLOC | __GFP_NORETRY | __GFP_NOWARN) & \
 			 ~__GFP_RECLAIM)
 
+#define GFP_USERCOPY	__GFP_USERCOPY
+
 /* Convert GFP flags to their corresponding migrate type */
 #define GFP_MOVABLE_MASK (__GFP_RECLAIMABLE|__GFP_MOVABLE)
 #define GFP_MOVABLE_SHIFT 3
@@ -522,7 +532,7 @@ extern void free_kmem_pages(unsigned long addr, unsigned int order);
 void page_alloc_init(void);
 void drain_zone_pages(struct zone *zone, struct per_cpu_pages *pcp);
 void drain_all_pages(struct zone *zone);
-void drain_local_pages(struct zone *zone);
+void drain_local_pages(void *zone);
 
 void page_alloc_init_late(void);
 
diff --git a/include/linux/gracl.h b/include/linux/gracl.h
new file mode 100644
index 0000000..91858e4
--- /dev/null
+++ b/include/linux/gracl.h
@@ -0,0 +1,342 @@
+#ifndef GR_ACL_H
+#define GR_ACL_H
+
+#include <linux/grdefs.h>
+#include <linux/resource.h>
+#include <linux/capability.h>
+#include <linux/dcache.h>
+#include <asm/resource.h>
+
+/* Major status information */
+
+#define GR_VERSION  "grsecurity 3.1"
+#define GRSECURITY_VERSION 0x3100
+
+enum {
+	GR_SHUTDOWN = 0,
+	GR_ENABLE = 1,
+	GR_SPROLE = 2,
+	GR_OLDRELOAD = 3,
+	GR_SEGVMOD = 4,
+	GR_STATUS = 5,
+	GR_UNSPROLE = 6,
+	GR_PASSSET = 7,
+	GR_SPROLEPAM = 8,
+	GR_RELOAD = 9,
+};
+
+/* Password setup definitions
+ * kernel/grhash.c */
+enum {
+	GR_PW_LEN = 128,
+	GR_SALT_LEN = 16,
+	GR_SHA_LEN = 32,
+};
+
+enum {
+	GR_SPROLE_LEN = 64,
+};
+
+enum {
+	GR_NO_GLOB = 0,
+	GR_REG_GLOB,
+	GR_CREATE_GLOB
+};
+
+#define GR_NLIMITS 32
+
+/* Begin Data Structures */
+
+struct sprole_pw {
+	unsigned char *rolename;
+	unsigned char salt[GR_SALT_LEN];
+	unsigned char sum[GR_SHA_LEN];	/* 256-bit SHA hash of the password */
+};
+
+struct name_entry {
+	__u32 key;
+	u64 inode;
+	dev_t device;
+	char *name;
+	__u16 len;
+	__u8 deleted;
+	struct name_entry *prev;
+	struct name_entry *next;
+};
+
+struct inodev_entry {
+	struct name_entry *nentry;
+	struct inodev_entry *prev;
+	struct inodev_entry *next;
+};
+
+struct acl_role_db {
+	struct acl_role_label **r_hash;
+	__u32 r_size;
+};
+
+struct inodev_db {
+	struct inodev_entry **i_hash;
+	__u32 i_size;
+};
+
+struct name_db {
+	struct name_entry **n_hash;
+	__u32 n_size;
+};
+
+struct crash_uid {
+	uid_t uid;
+	unsigned long expires;
+};
+
+struct gr_hash_struct {
+	void **table;
+	void **nametable;
+	void *first;
+	__u32 table_size;
+	__u32 used_size;
+	int type;
+};
+
+/* Userspace Grsecurity ACL data structures */
+
+struct acl_subject_label {
+	char *filename;
+	u64 inode;
+	dev_t device;
+	__u32 mode;
+	kernel_cap_t cap_mask;
+	kernel_cap_t cap_lower;
+	kernel_cap_t cap_invert_audit;
+
+	struct rlimit res[GR_NLIMITS];
+	__u32 resmask;
+
+	__u8 user_trans_type;
+	__u8 group_trans_type;
+	uid_t *user_transitions;
+	gid_t *group_transitions;
+	__u16 user_trans_num;
+	__u16 group_trans_num;
+
+	__u32 sock_families[2];
+	__u32 ip_proto[8];
+	__u32 ip_type;
+	struct acl_ip_label **ips;
+	__u32 ip_num;
+	__u32 inaddr_any_override;
+
+	__u32 crashes;
+	unsigned long expires;
+
+	struct acl_subject_label *parent_subject;
+	struct gr_hash_struct *hash;
+	struct acl_subject_label *prev;
+	struct acl_subject_label *next;
+
+	struct acl_object_label **obj_hash;
+	__u32 obj_hash_size;
+	__u16 pax_flags;
+};
+
+struct role_allowed_ip {
+	__u32 addr;
+	__u32 netmask;
+
+	struct role_allowed_ip *prev;
+	struct role_allowed_ip *next;
+};
+
+struct role_transition {
+	char *rolename;
+
+	struct role_transition *prev;
+	struct role_transition *next;
+};
+
+struct acl_role_label {
+	char *rolename;
+	uid_t uidgid;
+	__u16 roletype;
+
+	__u16 auth_attempts;
+	unsigned long expires;
+
+	struct acl_subject_label *root_label;
+	struct gr_hash_struct *hash;
+
+	struct acl_role_label *prev;
+	struct acl_role_label *next;
+
+	struct role_transition *transitions;
+	struct role_allowed_ip *allowed_ips;
+	uid_t *domain_children;
+	__u16 domain_child_num;
+
+	umode_t umask;
+
+	struct acl_subject_label **subj_hash;
+	__u32 subj_hash_size;
+};
+
+struct user_acl_role_db {
+	struct acl_role_label **r_table;
+	__u32 num_pointers;		/* Number of allocations to track */
+	__u32 num_roles;		/* Number of roles */
+	__u32 num_domain_children;	/* Number of domain children */
+	__u32 num_subjects;		/* Number of subjects */
+	__u32 num_objects;		/* Number of objects */
+};
+
+struct acl_object_label {
+	char *filename;
+	u64 inode;
+	dev_t device;
+	__u32 mode;
+
+	struct acl_subject_label *nested;
+	struct acl_object_label *globbed;
+
+	/* next two structures not used */
+
+	struct acl_object_label *prev;
+	struct acl_object_label *next;
+};
+
+struct acl_ip_label {
+	char *iface;
+	__u32 addr;
+	__u32 netmask;
+	__u16 low, high;
+	__u8 mode;
+	__u32 type;
+	__u32 proto[8];
+
+	/* next two structures not used */
+
+	struct acl_ip_label *prev;
+	struct acl_ip_label *next;
+};
+
+struct gr_arg {
+	struct user_acl_role_db role_db;
+	unsigned char pw[GR_PW_LEN];
+	unsigned char salt[GR_SALT_LEN];
+	unsigned char sum[GR_SHA_LEN];
+	unsigned char sp_role[GR_SPROLE_LEN];
+	struct sprole_pw *sprole_pws;
+	dev_t segv_device;
+	u64 segv_inode;
+	uid_t segv_uid;
+	__u16 num_sprole_pws;
+	__u16 mode;
+};
+
+struct gr_arg_wrapper {
+	struct gr_arg *arg;
+	__u32 version;
+	__u32 size;
+};
+
+struct subject_map {
+	struct acl_subject_label *user;
+	struct acl_subject_label *kernel;
+	struct subject_map *prev;
+	struct subject_map *next;
+};
+
+struct acl_subj_map_db {
+	struct subject_map **s_hash;
+	__u32 s_size;
+};
+
+struct gr_policy_state {
+	struct sprole_pw **acl_special_roles;
+	__u16 num_sprole_pws;
+	struct acl_role_label *kernel_role;
+	struct acl_role_label *role_list;
+	struct acl_role_label *default_role;
+	struct acl_role_db acl_role_set;
+	struct acl_subj_map_db subj_map_set;
+	struct name_db name_set;
+	struct inodev_db inodev_set;
+};
+
+struct gr_alloc_state {
+	unsigned long alloc_stack_next;
+	unsigned long alloc_stack_size;
+	void **alloc_stack;
+};
+
+struct gr_reload_state {
+	struct gr_policy_state oldpolicy;
+	struct gr_alloc_state oldalloc;
+	struct gr_policy_state newpolicy;
+	struct gr_alloc_state newalloc;
+	struct gr_policy_state *oldpolicy_ptr;
+	struct gr_alloc_state *oldalloc_ptr;
+	unsigned char oldmode;
+};
+
+/* End Data Structures Section */
+
+/* Hash functions generated by empirical testing by Brad Spengler
+   Makes good use of the low bits of the inode.  Generally 0-1 times
+   in loop for successful match.  0-3 for unsuccessful match.
+   Shift/add algorithm with modulus of table size and an XOR*/
+
+static __inline__ unsigned int
+gr_rhash(const uid_t uid, const __u16 type, const unsigned int sz)
+{
+	return ((((uid + type) << (16 + type)) ^ uid) % sz);
+}
+
+ static __inline__ unsigned int
+gr_shash(const struct acl_subject_label *userp, const unsigned int sz)
+{
+	return ((const unsigned long)userp % sz);
+}
+
+static __inline__ unsigned int
+gr_fhash(const u64 ino, const dev_t dev, const unsigned int sz)
+{
+	unsigned int rem;
+	div_u64_rem((ino + dev) ^ ((ino << 13) + (ino << 23) + (dev << 9)), sz, &rem);
+	return rem;
+}
+
+static __inline__ unsigned int
+gr_nhash(const char *name, const __u16 len, const unsigned int sz)
+{
+	return full_name_hash((const unsigned char *)name, len) % sz;
+}
+
+#define FOR_EACH_SUBJECT_START(role,subj,iter) \
+	subj = NULL; \
+	iter = 0; \
+	while (iter < role->subj_hash_size) { \
+		if (subj == NULL) \
+			subj = role->subj_hash[iter]; \
+		if (subj == NULL) { \
+			iter++; \
+			continue; \
+		}
+
+#define FOR_EACH_SUBJECT_END(subj,iter) \
+		subj = subj->next; \
+		if (subj == NULL) \
+			iter++; \
+	}
+
+
+#define FOR_EACH_NESTED_SUBJECT_START(role,subj) \
+	subj = role->hash->first; \
+	while (subj != NULL) {
+
+#define FOR_EACH_NESTED_SUBJECT_END(subj) \
+		subj = subj->next; \
+	}
+
+#endif
+
diff --git a/include/linux/gracl_compat.h b/include/linux/gracl_compat.h
new file mode 100644
index 0000000..af64092
--- /dev/null
+++ b/include/linux/gracl_compat.h
@@ -0,0 +1,156 @@
+#ifndef GR_ACL_COMPAT_H
+#define GR_ACL_COMPAT_H
+
+#include <linux/resource.h>
+#include <asm/resource.h>
+
+struct sprole_pw_compat {
+	compat_uptr_t rolename;
+	unsigned char salt[GR_SALT_LEN];
+	unsigned char sum[GR_SHA_LEN];
+};
+
+struct gr_hash_struct_compat {
+	compat_uptr_t table;
+	compat_uptr_t nametable;
+	compat_uptr_t first;
+	__u32 table_size;
+	__u32 used_size;
+	int type;
+};
+
+struct acl_subject_label_compat {
+	compat_uptr_t filename;
+	compat_u64 inode;
+	__u32 device;
+	__u32 mode;
+	kernel_cap_t cap_mask;
+	kernel_cap_t cap_lower;
+	kernel_cap_t cap_invert_audit;
+
+	struct compat_rlimit res[GR_NLIMITS];
+	__u32 resmask;
+
+	__u8 user_trans_type;
+	__u8 group_trans_type;
+	compat_uptr_t user_transitions;
+	compat_uptr_t group_transitions;
+	__u16 user_trans_num;
+	__u16 group_trans_num;
+
+	__u32 sock_families[2];
+	__u32 ip_proto[8];
+	__u32 ip_type;
+	compat_uptr_t ips;
+	__u32 ip_num;
+	__u32 inaddr_any_override;
+
+	__u32 crashes;
+	compat_ulong_t expires;
+
+	compat_uptr_t parent_subject;
+	compat_uptr_t hash;
+	compat_uptr_t prev;
+	compat_uptr_t next;
+
+	compat_uptr_t obj_hash;
+	__u32 obj_hash_size;
+	__u16 pax_flags;
+};
+
+struct role_allowed_ip_compat {
+	__u32 addr;
+	__u32 netmask;
+
+	compat_uptr_t prev;
+	compat_uptr_t next;
+};
+
+struct role_transition_compat {
+	compat_uptr_t rolename;
+
+	compat_uptr_t prev;
+	compat_uptr_t next;
+};
+
+struct acl_role_label_compat {
+	compat_uptr_t rolename;
+	uid_t uidgid;
+	__u16 roletype;
+
+	__u16 auth_attempts;
+	compat_ulong_t expires;
+
+	compat_uptr_t root_label;
+	compat_uptr_t hash;
+
+	compat_uptr_t prev;
+	compat_uptr_t next;
+
+	compat_uptr_t transitions;
+	compat_uptr_t allowed_ips;
+	compat_uptr_t domain_children;
+	__u16 domain_child_num;
+
+	umode_t umask;
+
+	compat_uptr_t subj_hash;
+	__u32 subj_hash_size;
+};
+
+struct user_acl_role_db_compat {
+	compat_uptr_t r_table;
+	__u32 num_pointers;
+	__u32 num_roles;
+	__u32 num_domain_children;
+	__u32 num_subjects;
+	__u32 num_objects;
+};
+
+struct acl_object_label_compat {
+	compat_uptr_t filename;
+	compat_u64 inode;
+	__u32 device;
+	__u32 mode;
+
+	compat_uptr_t nested;
+	compat_uptr_t globbed;
+
+	compat_uptr_t prev;
+	compat_uptr_t next;
+};
+
+struct acl_ip_label_compat {
+	compat_uptr_t iface;
+	__u32 addr;
+	__u32 netmask;
+	__u16 low, high;
+	__u8 mode;
+	__u32 type;
+	__u32 proto[8];
+
+	compat_uptr_t prev;
+	compat_uptr_t next;
+};
+
+struct gr_arg_compat {
+	struct user_acl_role_db_compat role_db;
+	unsigned char pw[GR_PW_LEN];
+	unsigned char salt[GR_SALT_LEN];
+	unsigned char sum[GR_SHA_LEN];
+	unsigned char sp_role[GR_SPROLE_LEN];
+	compat_uptr_t sprole_pws;
+	__u32 segv_device;
+	compat_u64 segv_inode;
+	uid_t segv_uid;
+	__u16 num_sprole_pws;
+	__u16 mode;
+};
+
+struct gr_arg_wrapper_compat {
+	compat_uptr_t arg;
+	__u32 version;
+	__u32 size;
+};
+
+#endif
diff --git a/include/linux/gralloc.h b/include/linux/gralloc.h
new file mode 100644
index 0000000..323ecf2
--- /dev/null
+++ b/include/linux/gralloc.h
@@ -0,0 +1,9 @@
+#ifndef __GRALLOC_H
+#define __GRALLOC_H
+
+void acl_free_all(void);
+int acl_alloc_stack_init(unsigned long size);
+void *acl_alloc(unsigned long len);
+void *acl_alloc_num(unsigned long num, unsigned long len);
+
+#endif
diff --git a/include/linux/grdefs.h b/include/linux/grdefs.h
new file mode 100644
index 0000000..be66033
--- /dev/null
+++ b/include/linux/grdefs.h
@@ -0,0 +1,140 @@
+#ifndef GRDEFS_H
+#define GRDEFS_H
+
+/* Begin grsecurity status declarations */
+
+enum {
+	GR_READY = 0x01,
+	GR_STATUS_INIT = 0x00	// disabled state
+};
+
+/* Begin  ACL declarations */
+
+/* Role flags */
+
+enum {
+	GR_ROLE_USER = 0x0001,
+	GR_ROLE_GROUP = 0x0002,
+	GR_ROLE_DEFAULT = 0x0004,
+	GR_ROLE_SPECIAL = 0x0008,
+	GR_ROLE_AUTH = 0x0010,
+	GR_ROLE_NOPW = 0x0020,
+	GR_ROLE_GOD = 0x0040,
+	GR_ROLE_LEARN = 0x0080,
+	GR_ROLE_TPE = 0x0100,
+	GR_ROLE_DOMAIN = 0x0200,
+	GR_ROLE_PAM = 0x0400,
+	GR_ROLE_PERSIST = 0x0800
+};
+
+/* ACL Subject and Object mode flags */
+enum {
+	GR_DELETED = 0x80000000
+};
+
+/* ACL Object-only mode flags */
+enum {
+	GR_READ 	= 0x00000001,
+	GR_APPEND 	= 0x00000002,
+	GR_WRITE 	= 0x00000004,
+	GR_EXEC 	= 0x00000008,
+	GR_FIND 	= 0x00000010,
+	GR_INHERIT 	= 0x00000020,
+	GR_SETID 	= 0x00000040,
+	GR_CREATE 	= 0x00000080,
+	GR_DELETE 	= 0x00000100,
+	GR_LINK		= 0x00000200,
+	GR_AUDIT_READ 	= 0x00000400,
+	GR_AUDIT_APPEND = 0x00000800,
+	GR_AUDIT_WRITE 	= 0x00001000,
+	GR_AUDIT_EXEC 	= 0x00002000,
+	GR_AUDIT_FIND 	= 0x00004000,
+	GR_AUDIT_INHERIT= 0x00008000,
+	GR_AUDIT_SETID 	= 0x00010000,
+	GR_AUDIT_CREATE = 0x00020000,
+	GR_AUDIT_DELETE = 0x00040000,
+	GR_AUDIT_LINK	= 0x00080000,
+	GR_PTRACERD 	= 0x00100000,
+	GR_NOPTRACE	= 0x00200000,
+	GR_SUPPRESS 	= 0x00400000,
+	GR_NOLEARN 	= 0x00800000,
+	GR_INIT_TRANSFER= 0x01000000
+};
+
+#define GR_AUDITS (GR_AUDIT_READ | GR_AUDIT_WRITE | GR_AUDIT_APPEND | GR_AUDIT_EXEC | \
+		   GR_AUDIT_FIND | GR_AUDIT_INHERIT | GR_AUDIT_SETID | \
+		   GR_AUDIT_CREATE | GR_AUDIT_DELETE | GR_AUDIT_LINK)
+
+/* ACL subject-only mode flags */
+enum {
+	GR_KILL 	= 0x00000001,
+	GR_VIEW 	= 0x00000002,
+	GR_PROTECTED 	= 0x00000004,
+	GR_LEARN 	= 0x00000008,
+	GR_OVERRIDE 	= 0x00000010,
+	/* just a placeholder, this mode is only used in userspace */
+	GR_DUMMY 	= 0x00000020,
+	GR_PROTSHM	= 0x00000040,
+	GR_KILLPROC	= 0x00000080,
+	GR_KILLIPPROC	= 0x00000100,
+	/* just a placeholder, this mode is only used in userspace */
+	GR_NOTROJAN	= 0x00000200,
+	GR_PROTPROCFD	= 0x00000400,
+	GR_PROCACCT	= 0x00000800,
+	GR_RELAXPTRACE	= 0x00001000,
+	//GR_NESTED	= 0x00002000,
+	GR_INHERITLEARN	= 0x00004000,
+	GR_PROCFIND	= 0x00008000,
+	GR_POVERRIDE	= 0x00010000,
+	GR_KERNELAUTH	= 0x00020000,
+	GR_ATSECURE	= 0x00040000,
+	GR_SHMEXEC	= 0x00080000
+};
+
+enum {
+	GR_PAX_ENABLE_SEGMEXEC	= 0x0001,
+	GR_PAX_ENABLE_PAGEEXEC	= 0x0002,
+	GR_PAX_ENABLE_MPROTECT	= 0x0004,
+	GR_PAX_ENABLE_RANDMMAP	= 0x0008,
+	GR_PAX_ENABLE_EMUTRAMP	= 0x0010,
+	GR_PAX_DISABLE_SEGMEXEC	= 0x0100,
+	GR_PAX_DISABLE_PAGEEXEC	= 0x0200,
+	GR_PAX_DISABLE_MPROTECT	= 0x0400,
+	GR_PAX_DISABLE_RANDMMAP	= 0x0800,
+	GR_PAX_DISABLE_EMUTRAMP	= 0x1000,
+};
+
+enum {
+	GR_ID_USER	= 0x01,
+	GR_ID_GROUP	= 0x02,
+};
+
+enum {
+	GR_ID_ALLOW	= 0x01,
+	GR_ID_DENY	= 0x02,
+};
+
+#define GR_CRASH_RES	31
+#define GR_UIDTABLE_MAX 500
+
+/* begin resource learning section */
+enum {
+	GR_RLIM_CPU_BUMP = 60,
+	GR_RLIM_FSIZE_BUMP = 50000,
+	GR_RLIM_DATA_BUMP = 10000,
+	GR_RLIM_STACK_BUMP = 1000,
+	GR_RLIM_CORE_BUMP = 10000,
+	GR_RLIM_RSS_BUMP = 500000,
+	GR_RLIM_NPROC_BUMP = 1,
+	GR_RLIM_NOFILE_BUMP = 5,
+	GR_RLIM_MEMLOCK_BUMP = 50000,
+	GR_RLIM_AS_BUMP = 500000,
+	GR_RLIM_LOCKS_BUMP = 2,
+	GR_RLIM_SIGPENDING_BUMP = 5,
+	GR_RLIM_MSGQUEUE_BUMP = 10000,
+	GR_RLIM_NICE_BUMP = 1,
+	GR_RLIM_RTPRIO_BUMP = 1,
+	GR_RLIM_RTTIME_BUMP = 1000000
+};
+
+#endif
diff --git a/include/linux/grinternal.h b/include/linux/grinternal.h
new file mode 100644
index 0000000..1dbf9c8
--- /dev/null
+++ b/include/linux/grinternal.h
@@ -0,0 +1,231 @@
+#ifndef __GRINTERNAL_H
+#define __GRINTERNAL_H
+
+#ifdef CONFIG_GRKERNSEC
+
+#include <linux/fs.h>
+#include <linux/mnt_namespace.h>
+#include <linux/nsproxy.h>
+#include <linux/gracl.h>
+#include <linux/grdefs.h>
+#include <linux/grmsg.h>
+
+void gr_add_learn_entry(const char *fmt, ...)
+	__attribute__ ((format (printf, 1, 2)));
+__u32 gr_search_file(const struct dentry *dentry, const __u32 mode,
+			    const struct vfsmount *mnt);
+__u32 gr_check_create(const struct dentry *new_dentry,
+			     const struct dentry *parent,
+			     const struct vfsmount *mnt, const __u32 mode);
+int gr_check_protected_task(const struct task_struct *task);
+__u32 to_gr_audit(const __u32 reqmode);
+int gr_set_acls(const int type);
+int gr_acl_is_enabled(void);
+char gr_roletype_to_char(void);
+
+void gr_handle_alertkill(struct task_struct *task);
+char *gr_to_filename(const struct dentry *dentry,
+			    const struct vfsmount *mnt);
+char *gr_to_filename1(const struct dentry *dentry,
+			    const struct vfsmount *mnt);
+char *gr_to_filename2(const struct dentry *dentry,
+			    const struct vfsmount *mnt);
+char *gr_to_filename3(const struct dentry *dentry,
+			    const struct vfsmount *mnt);
+
+extern int grsec_enable_ptrace_readexec;
+extern int grsec_enable_harden_ptrace;
+extern int grsec_enable_link;
+extern int grsec_enable_fifo;
+extern int grsec_enable_execve;
+extern int grsec_enable_shm;
+extern int grsec_enable_execlog;
+extern int grsec_enable_signal;
+extern int grsec_enable_audit_ptrace;
+extern int grsec_enable_forkfail;
+extern int grsec_enable_time;
+extern int grsec_enable_rofs;
+extern int grsec_deny_new_usb;
+extern int grsec_enable_chroot_shmat;
+extern int grsec_enable_chroot_mount;
+extern int grsec_enable_chroot_double;
+extern int grsec_enable_chroot_pivot;
+extern int grsec_enable_chroot_chdir;
+extern int grsec_enable_chroot_chmod;
+extern int grsec_enable_chroot_mknod;
+extern int grsec_enable_chroot_fchdir;
+extern int grsec_enable_chroot_nice;
+extern int grsec_enable_chroot_execlog;
+extern int grsec_enable_chroot_caps;
+extern int grsec_enable_chroot_rename;
+extern int grsec_enable_chroot_sysctl;
+extern int grsec_enable_chroot_unix;
+extern int grsec_enable_symlinkown;
+extern kgid_t grsec_symlinkown_gid;
+extern int grsec_enable_tpe;
+extern kgid_t grsec_tpe_gid;
+extern int grsec_enable_tpe_all;
+extern int grsec_enable_tpe_invert;
+extern int grsec_enable_socket_all;
+extern kgid_t grsec_socket_all_gid;
+extern int grsec_enable_socket_client;
+extern kgid_t grsec_socket_client_gid;
+extern int grsec_enable_socket_server;
+extern kgid_t grsec_socket_server_gid;
+extern kgid_t grsec_audit_gid;
+extern int grsec_enable_group;
+extern int grsec_enable_log_rwxmaps;
+extern int grsec_enable_mount;
+extern int grsec_enable_chdir;
+extern int grsec_resource_logging;
+extern int grsec_enable_blackhole;
+extern int grsec_lastack_retries;
+extern int grsec_enable_brute;
+extern int grsec_enable_harden_ipc;
+extern int grsec_enable_harden_tty;
+extern int grsec_lock;
+
+extern spinlock_t grsec_alert_lock;
+extern unsigned long grsec_alert_wtime;
+extern unsigned long grsec_alert_fyet;
+
+extern spinlock_t grsec_audit_lock;
+
+extern rwlock_t grsec_exec_file_lock;
+
+#define gr_task_fullpath(tsk) ((tsk)->exec_file ? \
+			gr_to_filename2((tsk)->exec_file->f_path.dentry, \
+			(tsk)->exec_file->f_path.mnt) : "/")
+
+#define gr_parent_task_fullpath(tsk) ((tsk)->real_parent->exec_file ? \
+			gr_to_filename3((tsk)->real_parent->exec_file->f_path.dentry, \
+			(tsk)->real_parent->exec_file->f_path.mnt) : "/")
+
+#define gr_task_fullpath0(tsk) ((tsk)->exec_file ? \
+			gr_to_filename((tsk)->exec_file->f_path.dentry, \
+			(tsk)->exec_file->f_path.mnt) : "/")
+
+#define gr_parent_task_fullpath0(tsk) ((tsk)->real_parent->exec_file ? \
+			gr_to_filename1((tsk)->real_parent->exec_file->f_path.dentry, \
+			(tsk)->real_parent->exec_file->f_path.mnt) : "/")
+
+#define proc_is_chrooted(tsk_a)  ((tsk_a)->gr_is_chrooted)
+
+#define have_same_root(tsk_a,tsk_b) ((tsk_a)->gr_chroot_dentry == (tsk_b)->gr_chroot_dentry)
+
+static inline bool gr_is_same_file(const struct file *file1, const struct file *file2)
+{
+	if (file1 && file2) {
+		const struct inode *inode1 = file1->f_path.dentry->d_inode;
+		const struct inode *inode2 = file2->f_path.dentry->d_inode;
+		if (inode1->i_ino == inode2->i_ino && inode1->i_sb->s_dev == inode2->i_sb->s_dev)
+			return true;
+	}
+
+	return false;
+}
+
+#define GR_CHROOT_CAPS {{ \
+	CAP_TO_MASK(CAP_LINUX_IMMUTABLE) | CAP_TO_MASK(CAP_NET_ADMIN) | \
+	CAP_TO_MASK(CAP_SYS_MODULE) | CAP_TO_MASK(CAP_SYS_RAWIO) | \
+	CAP_TO_MASK(CAP_SYS_PACCT) | CAP_TO_MASK(CAP_SYS_ADMIN) | \
+	CAP_TO_MASK(CAP_SYS_BOOT) | CAP_TO_MASK(CAP_SYS_TIME) | \
+	CAP_TO_MASK(CAP_NET_RAW) | CAP_TO_MASK(CAP_SYS_TTY_CONFIG) | \
+	CAP_TO_MASK(CAP_IPC_OWNER) | CAP_TO_MASK(CAP_SETFCAP), \
+	CAP_TO_MASK(CAP_SYSLOG) | CAP_TO_MASK(CAP_MAC_ADMIN) }}
+
+#define security_learn(normal_msg,args...) \
+({ \
+	read_lock(&grsec_exec_file_lock); \
+	gr_add_learn_entry(normal_msg "\n", ## args); \
+	read_unlock(&grsec_exec_file_lock); \
+})
+
+enum {
+	GR_DO_AUDIT,
+	GR_DONT_AUDIT,
+	/* used for non-audit messages that we shouldn't kill the task on */
+	GR_DONT_AUDIT_GOOD
+};
+
+enum {
+	GR_TTYSNIFF,
+	GR_RBAC,
+	GR_RBAC_STR,
+	GR_STR_RBAC,
+	GR_RBAC_MODE2,
+	GR_RBAC_MODE3,
+	GR_FILENAME,
+	GR_SYSCTL_HIDDEN,
+	GR_NOARGS,
+	GR_ONE_INT,
+	GR_ONE_INT_TWO_STR,
+	GR_ONE_STR,
+	GR_STR_INT,
+	GR_TWO_STR_INT,
+	GR_TWO_INT,
+	GR_TWO_U64,
+	GR_THREE_INT,
+	GR_FIVE_INT_TWO_STR,
+	GR_TWO_STR,
+	GR_THREE_STR,
+	GR_FOUR_STR,
+	GR_STR_FILENAME,
+	GR_FILENAME_STR,
+	GR_FILENAME_TWO_INT,
+	GR_FILENAME_TWO_INT_STR,
+	GR_TEXTREL,
+	GR_PTRACE,
+	GR_RESOURCE,
+	GR_CAP,
+	GR_SIG,
+	GR_SIG2,
+	GR_CRASH1,
+	GR_CRASH2,
+	GR_PSACCT,
+	GR_RWXMAP,
+	GR_RWXMAPVMA
+};
+
+#define gr_log_hidden_sysctl(audit, msg, str) gr_log_varargs(audit, msg, GR_SYSCTL_HIDDEN, str)
+#define gr_log_ttysniff(audit, msg, task) gr_log_varargs(audit, msg, GR_TTYSNIFF, task)
+#define gr_log_fs_rbac_generic(audit, msg, dentry, mnt) gr_log_varargs(audit, msg, GR_RBAC, dentry, mnt)
+#define gr_log_fs_rbac_str(audit, msg, dentry, mnt, str) gr_log_varargs(audit, msg, GR_RBAC_STR, dentry, mnt, str)
+#define gr_log_fs_str_rbac(audit, msg, str, dentry, mnt) gr_log_varargs(audit, msg, GR_STR_RBAC, str, dentry, mnt)
+#define gr_log_fs_rbac_mode2(audit, msg, dentry, mnt, str1, str2) gr_log_varargs(audit, msg, GR_RBAC_MODE2, dentry, mnt, str1, str2)
+#define gr_log_fs_rbac_mode3(audit, msg, dentry, mnt, str1, str2, str3) gr_log_varargs(audit, msg, GR_RBAC_MODE3, dentry, mnt, str1, str2, str3)
+#define gr_log_fs_generic(audit, msg, dentry, mnt) gr_log_varargs(audit, msg, GR_FILENAME, dentry, mnt)
+#define gr_log_noargs(audit, msg) gr_log_varargs(audit, msg, GR_NOARGS)
+#define gr_log_int(audit, msg, num) gr_log_varargs(audit, msg, GR_ONE_INT, num)
+#define gr_log_int_str2(audit, msg, num, str1, str2) gr_log_varargs(audit, msg, GR_ONE_INT_TWO_STR, num, str1, str2)
+#define gr_log_str(audit, msg, str) gr_log_varargs(audit, msg, GR_ONE_STR, str)
+#define gr_log_str_int(audit, msg, str, num) gr_log_varargs(audit, msg, GR_STR_INT, str, num)
+#define gr_log_int_int(audit, msg, num1, num2) gr_log_varargs(audit, msg, GR_TWO_INT, num1, num2)
+#define gr_log_two_u64(audit, msg, num1, num2) gr_log_varargs(audit, msg, GR_TWO_U64, num1, num2)
+#define gr_log_int3(audit, msg, num1, num2, num3) gr_log_varargs(audit, msg, GR_THREE_INT, num1, num2, num3)
+#define gr_log_int5_str2(audit, msg, num1, num2, str1, str2) gr_log_varargs(audit, msg, GR_FIVE_INT_TWO_STR, num1, num2, str1, str2)
+#define gr_log_str_str(audit, msg, str1, str2) gr_log_varargs(audit, msg, GR_TWO_STR, str1, str2)
+#define gr_log_str2_int(audit, msg, str1, str2, num) gr_log_varargs(audit, msg, GR_TWO_STR_INT, str1, str2, num)
+#define gr_log_str3(audit, msg, str1, str2, str3) gr_log_varargs(audit, msg, GR_THREE_STR, str1, str2, str3)
+#define gr_log_str4(audit, msg, str1, str2, str3, str4) gr_log_varargs(audit, msg, GR_FOUR_STR, str1, str2, str3, str4)
+#define gr_log_str_fs(audit, msg, str, dentry, mnt) gr_log_varargs(audit, msg, GR_STR_FILENAME, str, dentry, mnt)
+#define gr_log_fs_str(audit, msg, dentry, mnt, str) gr_log_varargs(audit, msg, GR_FILENAME_STR, dentry, mnt, str)
+#define gr_log_fs_int2(audit, msg, dentry, mnt, num1, num2) gr_log_varargs(audit, msg, GR_FILENAME_TWO_INT, dentry, mnt, num1, num2)
+#define gr_log_fs_int2_str(audit, msg, dentry, mnt, num1, num2, str) gr_log_varargs(audit, msg, GR_FILENAME_TWO_INT_STR, dentry, mnt, num1, num2, str)
+#define gr_log_textrel_ulong_ulong(audit, msg, str, file, ulong1, ulong2) gr_log_varargs(audit, msg, GR_TEXTREL, str, file, ulong1, ulong2)
+#define gr_log_ptrace(audit, msg, task) gr_log_varargs(audit, msg, GR_PTRACE, task)
+#define gr_log_res_ulong2_str(audit, msg, task, ulong1, str, ulong2) gr_log_varargs(audit, msg, GR_RESOURCE, task, ulong1, str, ulong2)
+#define gr_log_cap(audit, msg, task, str) gr_log_varargs(audit, msg, GR_CAP, task, str)
+#define gr_log_sig_addr(audit, msg, str, addr) gr_log_varargs(audit, msg, GR_SIG, str, addr)
+#define gr_log_sig_task(audit, msg, task, num) gr_log_varargs(audit, msg, GR_SIG2, task, num)
+#define gr_log_crash1(audit, msg, task, ulong) gr_log_varargs(audit, msg, GR_CRASH1, task, ulong)
+#define gr_log_crash2(audit, msg, task, ulong1) gr_log_varargs(audit, msg, GR_CRASH2, task, ulong1)
+#define gr_log_procacct(audit, msg, task, num1, num2, num3, num4, num5, num6, num7, num8, num9) gr_log_varargs(audit, msg, GR_PSACCT, task, num1, num2, num3, num4, num5, num6, num7, num8, num9)
+#define gr_log_rwxmap(audit, msg, str) gr_log_varargs(audit, msg, GR_RWXMAP, str)
+#define gr_log_rwxmap_vma(audit, msg, str) gr_log_varargs(audit, msg, GR_RWXMAPVMA, str)
+
+void gr_log_varargs(int audit, const char *msg, int argtypes, ...);
+
+#endif
+
+#endif
diff --git a/include/linux/grmsg.h b/include/linux/grmsg.h
new file mode 100644
index 0000000..94ac4d2
--- /dev/null
+++ b/include/linux/grmsg.h
@@ -0,0 +1,120 @@
+#define DEFAULTSECMSG "%.256s[%.16s:%d] uid/euid:%u/%u gid/egid:%u/%u, parent %.256s[%.16s:%d] uid/euid:%u/%u gid/egid:%u/%u"
+#define GR_ACL_PROCACCT_MSG "%.256s[%.16s:%d] IP:%pI4 TTY:%.64s uid/euid:%u/%u gid/egid:%u/%u run time:[%ud %uh %um %us] cpu time:[%ud %uh %um %us] %s with exit code %ld, parent %.256s[%.16s:%d] IP:%pI4 TTY:%.64s uid/euid:%u/%u gid/egid:%u/%u"
+#define GR_PTRACE_ACL_MSG "denied ptrace of %.950s(%.16s:%d) by "
+#define GR_STOPMOD_MSG "denied modification of module state by "
+#define GR_ROFS_BLOCKWRITE_MSG "denied write to block device %.950s by "
+#define GR_ROFS_MOUNT_MSG "denied writable mount of %.950s by "
+#define GR_IOPERM_MSG "denied use of ioperm() by "
+#define GR_IOPL_MSG "denied use of iopl() by "
+#define GR_SHMAT_ACL_MSG "denied attach of shared memory of UID %u, PID %d, ID %u by "
+#define GR_UNIX_CHROOT_MSG "denied connect() to abstract AF_UNIX socket outside of chroot by "
+#define GR_SHMAT_CHROOT_MSG "denied attach of shared memory outside of chroot by "
+#define GR_MEM_READWRITE_MSG "denied access of range %Lx -> %Lx in /dev/mem by "
+#define GR_SYMLINK_MSG "not following symlink %.950s owned by %d.%d by "
+#define GR_LEARN_AUDIT_MSG "%s\t%u\t%u\t%u\t%.4095s\t%.4095s\t%lu\t%lu\t%.4095s\t%lu\t%pI4"
+#define GR_ID_LEARN_MSG "%s\t%u\t%u\t%u\t%.4095s\t%.4095s\t%c\t%d\t%d\t%d\t%pI4"
+#define GR_HIDDEN_ACL_MSG "%s access to hidden file %.950s by "
+#define GR_OPEN_ACL_MSG "%s open of %.950s for%s%s by "
+#define GR_CREATE_ACL_MSG "%s create of %.950s for%s%s by "
+#define GR_FIFO_MSG "denied writing FIFO %.950s of %d.%d by "
+#define GR_MKNOD_CHROOT_MSG "denied mknod of %.950s from chroot by "
+#define GR_MKNOD_ACL_MSG "%s mknod of %.950s by "
+#define GR_UNIXCONNECT_ACL_MSG "%s connect() to the unix domain socket %.950s by "
+#define GR_TTYSNIFF_ACL_MSG "terminal being sniffed by IP:%pI4 %.480s[%.16s:%d], parent %.480s[%.16s:%d] against "
+#define GR_MKDIR_ACL_MSG "%s mkdir of %.950s by "
+#define GR_RMDIR_ACL_MSG "%s rmdir of %.950s by "
+#define GR_UNLINK_ACL_MSG "%s unlink of %.950s by "
+#define GR_SYMLINK_ACL_MSG "%s symlink from %.480s to %.480s by "
+#define GR_HARDLINK_MSG "denied hardlink of %.930s (owned by %d.%d) to %.30s for "
+#define GR_LINK_ACL_MSG "%s link of %.480s to %.480s by "
+#define GR_INHERIT_ACL_MSG "successful inherit of %.480s's ACL for %.480s by "
+#define GR_RENAME_ACL_MSG "%s rename of %.480s to %.480s by "
+#define GR_UNSAFESHARE_EXEC_ACL_MSG "denied exec with cloned fs of %.950s by "
+#define GR_PTRACE_EXEC_ACL_MSG "denied ptrace of %.950s by "
+#define GR_EXEC_ACL_MSG "%s execution of %.950s by "
+#define GR_EXEC_TPE_MSG "denied untrusted exec (due to %.70s) of %.950s by "
+#define GR_SEGVSTART_ACL_MSG "possible exploit bruteforcing on " DEFAULTSECMSG " banning uid %u from login for %lu seconds"
+#define GR_SEGVNOSUID_ACL_MSG "possible exploit bruteforcing on " DEFAULTSECMSG " banning execution for %lu seconds"
+#define GR_MOUNT_CHROOT_MSG "denied mount of %.256s as %.930s from chroot by "
+#define GR_PIVOT_CHROOT_MSG "denied pivot_root from chroot by "
+#define GR_TRUNCATE_ACL_MSG "%s truncate of %.950s by "
+#define GR_ATIME_ACL_MSG "%s access time change of %.950s by "
+#define GR_ACCESS_ACL_MSG "%s access of %.950s for%s%s%s by "
+#define GR_CHROOT_CHROOT_MSG "denied double chroot to %.950s by "
+#define GR_CHROOT_RENAME_MSG "denied bad rename of %.950s out of a chroot by "
+#define GR_CHMOD_CHROOT_MSG "denied chmod +s of %.950s by "
+#define GR_CHMOD_ACL_MSG "%s chmod of %.950s by "
+#define GR_CHROOT_FCHDIR_MSG "denied fchdir outside of chroot to %.950s by "
+#define GR_CHROOT_PATHAT_MSG "denied relative path access outside of chroot to %.950s by "
+#define GR_CHROOT_FHANDLE_MSG "denied use of file handles inside chroot by "
+#define GR_CHOWN_ACL_MSG "%s chown of %.950s by "
+#define GR_SETXATTR_ACL_MSG "%s setting extended attribute of %.950s by "
+#define GR_REMOVEXATTR_ACL_MSG "%s removing extended attribute of %.950s by "
+#define GR_WRITLIB_ACL_MSG "denied load of writable library %.950s by "
+#define GR_INITF_ACL_MSG "init_variables() failed %s by "
+#define GR_DISABLED_ACL_MSG "Error loading %s, trying to run kernel with acls disabled. To disable acls at startup use <kernel image name> gracl=off from your boot loader"
+#define GR_DEV_ACL_MSG "/dev/grsec: %d bytes sent %d required, being fed garbage by "
+#define GR_SHUTS_ACL_MSG "shutdown auth success for "
+#define GR_SHUTF_ACL_MSG "shutdown auth failure for "
+#define GR_SHUTI_ACL_MSG "ignoring shutdown for disabled RBAC system for "
+#define GR_SEGVMODS_ACL_MSG "segvmod auth success for "
+#define GR_SEGVMODF_ACL_MSG "segvmod auth failure for "
+#define GR_SEGVMODI_ACL_MSG "ignoring segvmod for disabled RBAC system for "
+#define GR_ENABLE_ACL_MSG "%s RBAC system loaded by "
+#define GR_ENABLEF_ACL_MSG "unable to load %s for "
+#define GR_RELOADI_ACL_MSG "ignoring reload request for disabled RBAC system"
+#define GR_RELOAD_ACL_MSG "%s RBAC system reloaded by "
+#define GR_RELOADF_ACL_MSG "failed reload of %s for "
+#define GR_SPROLEI_ACL_MSG "ignoring change to special role for disabled RBAC system for "
+#define GR_SPROLES_ACL_MSG "successful change to special role %s (id %d) by "
+#define GR_SPROLEL_ACL_MSG "special role %s (id %d) exited by "
+#define GR_SPROLEF_ACL_MSG "special role %s failure for "
+#define GR_UNSPROLEI_ACL_MSG "ignoring unauth of special role for disabled RBAC system for "
+#define GR_UNSPROLES_ACL_MSG "successful unauth of special role %s (id %d) by "
+#define GR_INVMODE_ACL_MSG "invalid mode %d by "
+#define GR_PRIORITY_CHROOT_MSG "denied priority change of process (%.16s:%d) by "
+#define GR_FAILFORK_MSG "failed fork with errno %s by "
+#define GR_NICE_CHROOT_MSG "denied priority change by "
+#define GR_UNISIGLOG_MSG "%.32s occurred at %p in "
+#define GR_DUALSIGLOG_MSG "signal %d sent to " DEFAULTSECMSG " by "
+#define GR_SIG_ACL_MSG "denied send of signal %d to protected task " DEFAULTSECMSG " by "
+#define GR_SYSCTL_MSG "denied modification of grsecurity sysctl value : %.32s by "
+#define GR_SYSCTL_ACL_MSG "%s sysctl of %.950s for%s%s by "
+#define GR_TIME_MSG "time set by "
+#define GR_DEFACL_MSG "fatal: unable to find subject for (%.16s:%d), loaded by "
+#define GR_MMAP_ACL_MSG "%s executable mmap of %.950s by "
+#define GR_MPROTECT_ACL_MSG "%s executable mprotect of %.950s by "
+#define GR_SOCK_MSG "denied socket(%.16s,%.16s,%.16s) by "
+#define GR_SOCK_NOINET_MSG "denied socket(%.16s,%.16s,%d) by "
+#define GR_BIND_MSG "denied bind() by "
+#define GR_CONNECT_MSG "denied connect() by "
+#define GR_BIND_ACL_MSG "denied bind() to %pI4 port %u sock type %.16s protocol %.16s by "
+#define GR_CONNECT_ACL_MSG "denied connect() to %pI4 port %u sock type %.16s protocol %.16s by "
+#define GR_IP_LEARN_MSG "%s\t%u\t%u\t%u\t%.4095s\t%.4095s\t%pI4\t%u\t%u\t%u\t%u\t%pI4"
+#define GR_EXEC_CHROOT_MSG "exec of %.980s within chroot by process "
+#define GR_CAP_ACL_MSG "use of %s denied for "
+#define GR_CAP_CHROOT_MSG "use of %s in chroot denied for "
+#define GR_CAP_ACL_MSG2 "use of %s permitted for "
+#define GR_USRCHANGE_ACL_MSG "change to uid %u denied for "
+#define GR_GRPCHANGE_ACL_MSG "change to gid %u denied for "
+#define GR_REMOUNT_AUDIT_MSG "remount of %.256s by "
+#define GR_UNMOUNT_AUDIT_MSG "unmount of %.256s by "
+#define GR_MOUNT_AUDIT_MSG "mount of %.256s to %.256s by "
+#define GR_CHDIR_AUDIT_MSG "chdir to %.980s by "
+#define GR_EXEC_AUDIT_MSG "exec of %.930s (%.128s) by "
+#define GR_RESOURCE_MSG "denied resource overstep by requesting %lu for %.16s against limit %lu for "
+#define GR_RWXMMAP_MSG "denied RWX mmap of %.950s by "
+#define GR_RWXMPROTECT_MSG "denied RWX mprotect of %.950s by "
+#define GR_TEXTREL_AUDIT_MSG "allowed %s text relocation transition in %.950s, VMA:0x%08lx 0x%08lx by "
+#define GR_PTGNUSTACK_MSG "denied marking stack executable as requested by PT_GNU_STACK marking in %.950s by "
+#define GR_VM86_MSG "denied use of vm86 by "
+#define GR_PTRACE_AUDIT_MSG "process %.950s(%.16s:%d) attached to via ptrace by "
+#define GR_PTRACE_READEXEC_MSG "denied ptrace of unreadable binary %.950s by "
+#define GR_INIT_TRANSFER_MSG "persistent special role transferred privilege to init by "
+#define GR_BADPROCPID_MSG "denied read of sensitive /proc/pid/%s entry via fd passed across exec by "
+#define GR_SYMLINKOWNER_MSG "denied following symlink %.950s since symlink owner %u does not match target owner %u, by "
+#define GR_BRUTE_DAEMON_MSG "bruteforce prevention initiated for the next 30 minutes or until service restarted, stalling each fork 30 seconds.  Please investigate the crash report for "
+#define GR_BRUTE_SUID_MSG "bruteforce prevention initiated due to crash of %.950s against uid %u, banning suid/sgid execs for %u minutes.  Please investigate the crash report for "
+#define GR_IPC_DENIED_MSG "denied %s of overly-permissive IPC object with creator uid %u by "
+#define GR_TIOCSTI_MSG "denied unprivileged use of TIOCSTI by "
+#define GR_MSRWRITE_MSG "denied write to CPU MSR by "
diff --git a/include/linux/grsecurity.h b/include/linux/grsecurity.h
new file mode 100644
index 0000000..749b915
--- /dev/null
+++ b/include/linux/grsecurity.h
@@ -0,0 +1,259 @@
+#ifndef GR_SECURITY_H
+#define GR_SECURITY_H
+#include <linux/fs.h>
+#include <linux/fs_struct.h>
+#include <linux/binfmts.h>
+#include <linux/tty.h>
+#include <linux/gracl.h>
+
+/* notify of brain-dead configs */
+#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_GRKERNSEC_KMEM)
+#error "CONFIG_DEBUG_FS being enabled is a security risk when CONFIG_GRKERNSEC_KMEM is enabled"
+#endif
+#if defined(CONFIG_PROC_PAGE_MONITOR) && defined(CONFIG_GRKERNSEC)
+#error "CONFIG_PROC_PAGE_MONITOR is a security risk"
+#endif
+#if defined(CONFIG_GRKERNSEC_PROC_USER) && defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+#error "CONFIG_GRKERNSEC_PROC_USER and CONFIG_GRKERNSEC_PROC_USERGROUP cannot both be enabled."
+#endif
+#if defined(CONFIG_GRKERNSEC_PROC) && !defined(CONFIG_GRKERNSEC_PROC_USER) && !defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+#error "CONFIG_GRKERNSEC_PROC enabled, but neither CONFIG_GRKERNSEC_PROC_USER nor CONFIG_GRKERNSEC_PROC_USERGROUP enabled"
+#endif
+#if defined(CONFIG_PAX_NOEXEC) && !defined(CONFIG_PAX_PAGEEXEC) && !defined(CONFIG_PAX_SEGMEXEC) && !defined(CONFIG_PAX_KERNEXEC)
+#error "CONFIG_PAX_NOEXEC enabled, but PAGEEXEC, SEGMEXEC, and KERNEXEC are disabled."
+#endif
+#if defined(CONFIG_PAX_ASLR) && !defined(CONFIG_PAX_RANDKSTACK) && !defined(CONFIG_PAX_RANDUSTACK) && !defined(CONFIG_PAX_RANDMMAP)
+#error "CONFIG_PAX_ASLR enabled, but RANDKSTACK, RANDUSTACK, and RANDMMAP are disabled."
+#endif
+#if defined(CONFIG_PAX) && !defined(CONFIG_PAX_NOEXEC) && !defined(CONFIG_PAX_ASLR)
+#error "CONFIG_PAX enabled, but no PaX options are enabled."
+#endif
+
+int gr_handle_new_usb(void);
+
+void gr_handle_brute_attach(int dumpable);
+void gr_handle_brute_check(void);
+void gr_handle_kernel_exploit(void);
+
+char gr_roletype_to_char(void);
+
+int gr_proc_is_restricted(void);
+
+int gr_acl_enable_at_secure(void);
+
+int gr_check_user_change(kuid_t real, kuid_t effective, kuid_t fs);
+int gr_check_group_change(kgid_t real, kgid_t effective, kgid_t fs);
+
+int gr_learn_cap(const struct task_struct *task, const struct cred *cred, const int cap, bool log);
+
+void gr_del_task_from_ip_table(struct task_struct *p);
+
+int gr_pid_is_chrooted(struct task_struct *p);
+int gr_handle_chroot_fowner(struct pid *pid, enum pid_type type);
+int gr_handle_chroot_nice(void);
+int gr_handle_chroot_sysctl(const int op);
+int gr_handle_chroot_setpriority(struct task_struct *p,
+					const int niceval);
+int gr_chroot_fchdir(struct dentry *u_dentry, struct vfsmount *u_mnt);
+int gr_chroot_pathat(int dfd, struct dentry *u_dentry, struct vfsmount *u_mnt, unsigned flags);
+int gr_chroot_fhandle(void);
+int gr_handle_chroot_chroot(const struct dentry *dentry,
+				   const struct vfsmount *mnt);
+void gr_handle_chroot_chdir(const struct path *path);
+int gr_handle_chroot_chmod(const struct dentry *dentry,
+				  const struct vfsmount *mnt, const int mode);
+int gr_handle_chroot_mknod(const struct dentry *dentry,
+				  const struct vfsmount *mnt, const int mode);
+int gr_handle_chroot_mount(const struct dentry *dentry,
+				  const struct vfsmount *mnt,
+				  const char *dev_name);
+int gr_handle_chroot_pivot(void);
+int gr_handle_chroot_unix(const pid_t pid);
+
+int gr_handle_rawio(const struct inode *inode);
+
+void gr_handle_ioperm(void);
+void gr_handle_iopl(void);
+void gr_handle_msr_write(void);
+
+umode_t gr_acl_umask(void);
+
+int gr_tpe_allow(const struct file *file);
+
+void gr_set_chroot_entries(struct task_struct *task, const struct path *path);
+void gr_clear_chroot_entries(struct task_struct *task);
+
+void gr_log_forkfail(const int retval);
+void gr_log_timechange(void);
+void gr_log_signal(const int sig, const void *addr, const struct task_struct *t);
+void gr_log_chdir(const struct dentry *dentry,
+			 const struct vfsmount *mnt);
+void gr_log_chroot_exec(const struct dentry *dentry,
+			       const struct vfsmount *mnt);
+void gr_log_remount(const char *devname, const int retval);
+void gr_log_unmount(const char *devname, const int retval);
+void gr_log_mount(const char *from, struct path *to, const int retval);
+void gr_log_textrel(struct vm_area_struct *vma, bool is_textrel_rw);
+void gr_log_ptgnustack(struct file *file);
+void gr_log_rwxmmap(struct file *file);
+void gr_log_rwxmprotect(struct vm_area_struct *vma);
+
+int gr_handle_follow_link(const struct dentry *dentry,
+				 const struct vfsmount *mnt);
+int gr_handle_fifo(const struct dentry *dentry,
+			  const struct vfsmount *mnt,
+			  const struct dentry *dir, const int flag,
+			  const int acc_mode);
+int gr_handle_hardlink(const struct dentry *dentry,
+			      const struct vfsmount *mnt,
+			      const struct filename *to);
+
+int gr_is_capable(const int cap);
+int gr_is_capable_nolog(const int cap);
+int gr_task_is_capable(const struct task_struct *task, const struct cred *cred, const int cap);
+int gr_task_is_capable_nolog(const struct task_struct *task, const struct cred *cred, const int cap);
+
+void gr_copy_label(struct task_struct *tsk);
+void gr_handle_crash(struct task_struct *task, const int sig);
+int gr_handle_signal(const struct task_struct *p, const int sig);
+int gr_check_crash_uid(const kuid_t uid);
+int gr_check_protected_task(const struct task_struct *task);
+int gr_check_protected_task_fowner(struct pid *pid, enum pid_type type);
+int gr_acl_handle_mmap(const struct file *file,
+			      const unsigned long prot);
+int gr_acl_handle_mprotect(const struct file *file,
+				  const unsigned long prot);
+int gr_check_hidden_task(const struct task_struct *tsk);
+__u32 gr_acl_handle_truncate(const struct dentry *dentry,
+				    const struct vfsmount *mnt);
+__u32 gr_acl_handle_utime(const struct dentry *dentry,
+				 const struct vfsmount *mnt);
+__u32 gr_acl_handle_access(const struct dentry *dentry,
+				  const struct vfsmount *mnt, const int fmode);
+__u32 gr_acl_handle_chmod(const struct dentry *dentry,
+				 const struct vfsmount *mnt, umode_t *mode);
+__u32 gr_acl_handle_chown(const struct dentry *dentry,
+				 const struct vfsmount *mnt);
+__u32 gr_acl_handle_setxattr(const struct dentry *dentry,
+				 const struct vfsmount *mnt);
+__u32 gr_acl_handle_removexattr(const struct dentry *dentry,
+				 const struct vfsmount *mnt);
+int gr_handle_ptrace(struct task_struct *task, const long request);
+int gr_handle_proc_ptrace(struct task_struct *task);
+__u32 gr_acl_handle_execve(const struct dentry *dentry,
+				  const struct vfsmount *mnt);
+int gr_check_crash_exec(const struct file *filp);
+int gr_acl_is_enabled(void);
+void gr_set_role_label(struct task_struct *task, const kuid_t uid,
+			      const kgid_t gid);
+int gr_set_proc_label(const struct dentry *dentry,
+			const struct vfsmount *mnt,
+			const int unsafe_flags);
+__u32 gr_acl_handle_hidden_file(const struct dentry *dentry,
+				const struct vfsmount *mnt);
+__u32 gr_acl_handle_open(const struct dentry *dentry,
+				const struct vfsmount *mnt, int acc_mode);
+__u32 gr_acl_handle_creat(const struct dentry *dentry,
+				 const struct dentry *p_dentry,
+				 const struct vfsmount *p_mnt,
+				 int open_flags, int acc_mode, const int imode);
+void gr_handle_create(const struct dentry *dentry,
+			     const struct vfsmount *mnt);
+void gr_handle_proc_create(const struct dentry *dentry,
+			   const struct inode *inode);
+__u32 gr_acl_handle_mknod(const struct dentry *new_dentry,
+				 const struct dentry *parent_dentry,
+				 const struct vfsmount *parent_mnt,
+				 const int mode);
+__u32 gr_acl_handle_mkdir(const struct dentry *new_dentry,
+				 const struct dentry *parent_dentry,
+				 const struct vfsmount *parent_mnt);
+__u32 gr_acl_handle_rmdir(const struct dentry *dentry,
+				 const struct vfsmount *mnt);
+void gr_handle_delete(const u64 ino, const dev_t dev);
+__u32 gr_acl_handle_unlink(const struct dentry *dentry,
+				  const struct vfsmount *mnt);
+__u32 gr_acl_handle_symlink(const struct dentry *new_dentry,
+				   const struct dentry *parent_dentry,
+				   const struct vfsmount *parent_mnt,
+				   const struct filename *from);
+__u32 gr_acl_handle_link(const struct dentry *new_dentry,
+				const struct dentry *parent_dentry,
+				const struct vfsmount *parent_mnt,
+				const struct dentry *old_dentry,
+				const struct vfsmount *old_mnt, const struct filename *to);
+int gr_handle_symlink_owner(const struct path *link, const struct inode *target);
+int gr_acl_handle_rename(struct dentry *new_dentry,
+				struct dentry *parent_dentry,
+				const struct vfsmount *parent_mnt,
+				struct dentry *old_dentry,
+				struct inode *old_parent_inode,
+				struct vfsmount *old_mnt, const struct filename *newname, unsigned int flags);
+void gr_handle_rename(struct inode *old_dir, struct inode *new_dir,
+				struct dentry *old_dentry,
+				struct dentry *new_dentry,
+				struct vfsmount *mnt, const __u8 replace, unsigned int flags);
+__u32 gr_check_link(const struct dentry *new_dentry,
+			   const struct dentry *parent_dentry,
+			   const struct vfsmount *parent_mnt,
+			   const struct dentry *old_dentry,
+			   const struct vfsmount *old_mnt);
+int gr_acl_handle_filldir(const struct file *file, const char *name,
+				 const unsigned int namelen, const u64 ino);
+
+__u32 gr_acl_handle_unix(const struct dentry *dentry,
+				const struct vfsmount *mnt);
+void gr_acl_handle_exit(void);
+void gr_acl_handle_psacct(struct task_struct *task, const long code);
+int gr_acl_handle_procpidmem(const struct task_struct *task);
+int gr_handle_rofs_mount(struct dentry *dentry, struct vfsmount *mnt, int mnt_flags);
+int gr_handle_rofs_blockwrite(struct dentry *dentry, struct vfsmount *mnt, int acc_mode);
+void gr_audit_ptrace(struct task_struct *task);
+dev_t gr_get_dev_from_dentry(struct dentry *dentry);
+u64 gr_get_ino_from_dentry(struct dentry *dentry);
+void gr_put_exec_file(struct task_struct *task);
+
+int gr_get_symlinkown_enabled(void);
+
+int gr_ptrace_readexec(struct file *file, int unsafe_flags);
+
+int gr_handle_tiocsti(struct tty_struct *tty);
+
+void gr_inc_chroot_refcnts(struct dentry *dentry, struct vfsmount *mnt);
+void gr_dec_chroot_refcnts(struct dentry *dentry, struct vfsmount *mnt);
+int gr_bad_chroot_rename(struct dentry *olddentry, struct vfsmount *oldmnt,
+			 struct dentry *newdentry, struct vfsmount *newmnt);
+
+#ifdef CONFIG_GRKERNSEC_RESLOG
+extern void gr_log_resource(const struct task_struct *task, const int res,
+				   const unsigned long wanted, const int gt);
+#else
+static inline void gr_log_resource(const struct task_struct *task, const int res,
+				   const unsigned long wanted, const int gt)
+{
+}
+#endif
+
+#ifdef CONFIG_GRKERNSEC
+void task_grsec_rbac(struct seq_file *m, struct task_struct *p);
+void gr_handle_vm86(void);
+void gr_handle_mem_readwrite(u64 from, u64 to);
+
+void gr_log_badprocpid(const char *entry);
+
+extern int grsec_enable_dmesg;
+extern int grsec_disable_privio;
+
+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
+extern kgid_t grsec_proc_gid;
+#endif
+
+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
+extern int grsec_enable_chroot_findtask;
+#endif
+#ifdef CONFIG_GRKERNSEC_SETXID
+extern int grsec_enable_setxid;
+#endif
+#endif
+
+#endif
diff --git a/include/linux/grsock.h b/include/linux/grsock.h
new file mode 100644
index 0000000..e7ffaaf
--- /dev/null
+++ b/include/linux/grsock.h
@@ -0,0 +1,19 @@
+#ifndef __GRSOCK_H
+#define __GRSOCK_H
+
+extern void gr_attach_curr_ip(const struct sock *sk);
+extern int gr_handle_sock_all(const int family, const int type,
+			      const int protocol);
+extern int gr_handle_sock_server(const struct sockaddr *sck);
+extern int gr_handle_sock_server_other(const struct sock *sck);
+extern int gr_handle_sock_client(const struct sockaddr *sck);
+extern int gr_search_connect(struct socket * sock,
+			     struct sockaddr_in * addr);
+extern int gr_search_bind(struct socket * sock,
+			  struct sockaddr_in * addr);
+extern int gr_search_listen(struct socket * sock);
+extern int gr_search_accept(struct socket * sock);
+extern int gr_search_socket(const int domain, const int type,
+			    const int protocol);
+
+#endif
diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index bb3f329..9daed55 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -190,6 +190,18 @@ static inline void clear_highpage(struct page *page)
 	kunmap_atomic(kaddr);
 }
 
+static inline void sanitize_highpage(struct page *page)
+{
+	void *kaddr;
+	unsigned long flags;
+
+	local_irq_save(flags);
+	kaddr = kmap_atomic(page);
+	clear_page(kaddr);
+	kunmap_atomic(kaddr);
+	local_irq_restore(flags);
+}
+
 static inline void zero_user_segments(struct page *page,
 	unsigned start1, unsigned end1,
 	unsigned start2, unsigned end2)
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 7d953c2..f511887 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -314,7 +314,7 @@ struct hstate {
 	unsigned int surplus_huge_pages_node[MAX_NUMNODES];
 #ifdef CONFIG_CGROUP_HUGETLB
 	/* cgroup control files */
-	struct cftype cgroup_files[5];
+	struct cftype (*cgroup_files)[5];
 #endif
 	char name[HSTATE_NAME_LEN];
 };
diff --git a/include/linux/hugetlb_cgroup.h b/include/linux/hugetlb_cgroup.h
index 24154c2..43ac947 100644
--- a/include/linux/hugetlb_cgroup.h
+++ b/include/linux/hugetlb_cgroup.h
@@ -26,6 +26,13 @@ struct hugetlb_cgroup;
 
 #ifdef CONFIG_CGROUP_HUGETLB
 
+enum {
+	RES_USAGE,
+	RES_LIMIT,
+	RES_MAX_USAGE,
+	RES_FAILCNT,
+};
+
 static inline struct hugetlb_cgroup *hugetlb_cgroup_from_page(struct page *page)
 {
 	VM_BUG_ON_PAGE(!PageHuge(page), page);
@@ -64,6 +71,10 @@ extern void hugetlb_cgroup_file_init(void) __init;
 extern void hugetlb_cgroup_migrate(struct page *oldhpage,
 				   struct page *newhpage);
 
+ssize_t hugetlb_cgroup_reset(struct kernfs_open_file *of, char *buf, size_t nbytes, loff_t off);
+ssize_t hugetlb_cgroup_write(struct kernfs_open_file *of, char *buf, size_t nbytes, loff_t off);
+u64 hugetlb_cgroup_read_u64(struct cgroup_subsys_state *css, struct cftype *cft);
+
 #else
 static inline struct hugetlb_cgroup *hugetlb_cgroup_from_page(struct page *page)
 {
diff --git a/include/linux/hwmon-sysfs.h b/include/linux/hwmon-sysfs.h
index 1c7b89a..7dda400 100644
--- a/include/linux/hwmon-sysfs.h
+++ b/include/linux/hwmon-sysfs.h
@@ -25,7 +25,8 @@
 struct sensor_device_attribute{
 	struct device_attribute dev_attr;
 	int index;
-};
+} __do_const;
+typedef struct sensor_device_attribute __no_const sensor_device_attribute_no_const;
 #define to_sensor_dev_attr(_dev_attr) \
 	container_of(_dev_attr, struct sensor_device_attribute, dev_attr)
 
@@ -41,7 +42,8 @@ struct sensor_device_attribute_2 {
 	struct device_attribute dev_attr;
 	u8 index;
 	u8 nr;
-};
+} __do_const;
+typedef struct sensor_device_attribute_2 __no_const sensor_device_attribute_2_no_const;
 #define to_sensor_dev_attr_2(_dev_attr) \
 	container_of(_dev_attr, struct sensor_device_attribute_2, dev_attr)
 
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 200cf13b..2a82cb4 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -412,6 +412,7 @@ struct i2c_algorithm {
 	int (*unreg_slave)(struct i2c_client *client);
 #endif
 };
+typedef struct i2c_algorithm __no_const i2c_algorithm_no_const;
 
 /**
  * struct i2c_timings - I2C timing information
diff --git a/include/linux/if_pppox.h b/include/linux/if_pppox.h
index ba7a9b0..33a0237 100644
--- a/include/linux/if_pppox.h
+++ b/include/linux/if_pppox.h
@@ -78,7 +78,7 @@ struct pppox_proto {
 	int		(*ioctl)(struct socket *sock, unsigned int cmd,
 				 unsigned long arg);
 	struct module	*owner;
-};
+} __do_const;
 
 extern int register_pppox_proto(int proto_num, const struct pppox_proto *pp);
 extern void unregister_pppox_proto(int proto_num);
diff --git a/include/linux/init.h b/include/linux/init.h
index aedb254..71b67e5 100644
--- a/include/linux/init.h
+++ b/include/linux/init.h
@@ -39,7 +39,7 @@
 
 /* These are for everybody (although not all archs will actually
    discard it in modules) */
-#define __init		__section(.init.text) __cold notrace
+#define __init		__section(.init.text) __cold notrace __latent_entropy
 #define __initdata	__section(.init.data)
 #define __initconst	__constsection(.init.rodata)
 #define __exitdata	__section(.exit.data)
@@ -92,7 +92,7 @@
 #define __exit          __section(.exit.text) __exitused __cold notrace
 
 /* Used for MEMORY_HOTPLUG */
-#define __meminit        __section(.meminit.text) __cold notrace
+#define __meminit        __section(.meminit.text) __cold notrace __latent_entropy
 #define __meminitdata    __section(.meminit.data)
 #define __meminitconst   __constsection(.meminit.rodata)
 #define __memexit        __section(.memexit.text) __exitused __cold notrace
@@ -117,6 +117,12 @@
 #define __REFDATA        .section       ".ref.data", "aw"
 #define __REFCONST       .section       ".ref.rodata", "a"
 
+#ifdef CONFIG_PAX_KERNEXEC
+#define __READ_ONLY	.section	".data..read_only","a",%progbits
+#else
+#define __READ_ONLY	.section	".data..mostly","aw",%progbits
+#endif
+
 #ifndef __ASSEMBLY__
 /*
  * Used for initialization calls..
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index f2cb8d4..2f0363e 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -159,6 +159,12 @@ extern struct task_group root_task_group;
 
 #define INIT_TASK_COMM "swapper"
 
+#ifdef CONFIG_X86
+#define INIT_TASK_THREAD_INFO .tinfo = INIT_THREAD_INFO,
+#else
+#define INIT_TASK_THREAD_INFO
+#endif
+
 #ifdef CONFIG_RT_MUTEXES
 # define INIT_RT_MUTEXES(tsk)						\
 	.pi_waiters = RB_ROOT,						\
@@ -225,6 +231,7 @@ extern struct task_group root_task_group;
 	RCU_POINTER_INITIALIZER(cred, &init_cred),			\
 	.comm		= INIT_TASK_COMM,				\
 	.thread		= INIT_THREAD,					\
+	INIT_TASK_THREAD_INFO						\
 	.fs		= &init_fs,					\
 	.files		= &init_files,					\
 	.signal		= &init_signals,				\
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 9fcabeb..8f78b99 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -446,8 +446,8 @@ extern const char * const softirq_to_name[NR_SOFTIRQS];
 
 struct softirq_action
 {
-	void	(*action)(struct softirq_action *);
-};
+	void	(*action)(void);
+} __no_const;
 
 asmlinkage void do_softirq(void);
 asmlinkage void __do_softirq(void);
@@ -461,7 +461,7 @@ static inline void do_softirq_own_stack(void)
 }
 #endif
 
-extern void open_softirq(int nr, void (*action)(struct softirq_action *));
+extern void open_softirq(int nr, void (*action)(void));
 extern void softirq_init(void);
 extern void __raise_softirq_irqoff(unsigned int nr);
 
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index ef7a6ec..2b963bb 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -199,7 +199,7 @@ struct iommu_ops {
 
 	unsigned long pgsize_bitmap;
 	void *priv;
-};
+} __do_const;
 
 #define IOMMU_GROUP_NOTIFY_ADD_DEVICE		1 /* Device added */
 #define IOMMU_GROUP_NOTIFY_DEL_DEVICE		2 /* Pre Device removed */
diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index 0b65543..c396f13 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -186,7 +186,7 @@ struct resource *lookup_resource(struct resource *root, resource_size_t start);
 int adjust_resource(struct resource *res, resource_size_t start,
 		    resource_size_t size);
 resource_size_t resource_alignment(struct resource *res);
-static inline resource_size_t resource_size(const struct resource *res)
+static inline resource_size_t __intentional_overflow(-1) resource_size(const struct resource *res)
 {
 	return res->end - res->start + 1;
 }
diff --git a/include/linux/ipc.h b/include/linux/ipc.h
index 9d84942..12d5bdf 100644
--- a/include/linux/ipc.h
+++ b/include/linux/ipc.h
@@ -19,8 +19,8 @@ struct kern_ipc_perm
 	kuid_t		cuid;
 	kgid_t		cgid;
 	umode_t		mode; 
-	unsigned long	seq;
+	unsigned long	seq __intentional_overflow(-1);
 	void		*security;
-};
+} __randomize_layout;
 
 #endif /* _LINUX_IPC_H */
diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h
index 1eee6bc..9cf4912 100644
--- a/include/linux/ipc_namespace.h
+++ b/include/linux/ipc_namespace.h
@@ -60,7 +60,7 @@ struct ipc_namespace {
 	struct user_namespace *user_ns;
 
 	struct ns_common ns;
-};
+} __randomize_layout;
 
 extern struct ipc_namespace init_ipc_ns;
 extern atomic_t nr_ipc_ns;
diff --git a/include/linux/irq.h b/include/linux/irq.h
index c4de623..8f0044f 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -399,7 +399,10 @@ struct irq_chip {
 	void		(*ipi_send_mask)(struct irq_data *data, const struct cpumask *dest);
 
 	unsigned long	flags;
-};
+} __do_const;
+#ifndef _LINUX_IRQDOMAIN_H
+typedef struct irq_chip __no_const irq_chip_no_const;
+#endif
 
 /*
  * irq_chip specific flags
diff --git a/include/linux/irqchip/mmp.h b/include/linux/irqchip/mmp.h
index c78a892..124e0b7 100644
--- a/include/linux/irqchip/mmp.h
+++ b/include/linux/irqchip/mmp.h
@@ -1,6 +1,6 @@
 #ifndef	__IRQCHIP_MMP_H
 #define	__IRQCHIP_MMP_H
 
-extern struct irq_chip icu_irq_chip;
+extern irq_chip_no_const icu_irq_chip;
 
 #endif	/* __IRQCHIP_MMP_H */
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h
index dcca77c..8503b4f 100644
--- a/include/linux/irqdesc.h
+++ b/include/linux/irqdesc.h
@@ -62,7 +62,7 @@ struct irq_desc {
 	unsigned int		irq_count;	/* For detecting broken IRQs */
 	unsigned long		last_unhandled;	/* Aging timer for unhandled count */
 	unsigned int		irqs_unhandled;
-	atomic_t		threads_handled;
+	atomic_unchecked_t	threads_handled;
 	int			threads_handled_last;
 	raw_spinlock_t		lock;
 	struct cpumask		*percpu_enabled;
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index 2aed043..30ad77f 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -38,6 +38,9 @@ struct device_node;
 struct irq_domain;
 struct of_device_id;
 struct irq_chip;
+#ifndef _LINUX_IRQ_H
+typedef struct irq_chip __no_const irq_chip_no_const;
+#endif
 struct irq_data;
 
 /* Number of irqs reserved for a legacy isa controller */
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index fd1083c..be9252b 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -672,7 +672,7 @@ struct transaction_s
 	/*
 	 * How many handles used this transaction? [t_handle_lock]
 	 */
-	atomic_t		t_handle_count;
+	atomic_unchecked_t	t_handle_count;
 
 	/*
 	 * This transaction is being forced and some process is
diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h
index 5fdc553..766e169 100644
--- a/include/linux/jiffies.h
+++ b/include/linux/jiffies.h
@@ -284,19 +284,19 @@ extern unsigned long preset_lpj;
 extern unsigned int jiffies_to_msecs(const unsigned long j);
 extern unsigned int jiffies_to_usecs(const unsigned long j);
 
-static inline u64 jiffies_to_nsecs(const unsigned long j)
+static inline u64 __intentional_overflow(-1) jiffies_to_nsecs(const unsigned long j)
 {
 	return (u64)jiffies_to_usecs(j) * NSEC_PER_USEC;
 }
 
-extern unsigned long __msecs_to_jiffies(const unsigned int m);
+extern unsigned long __msecs_to_jiffies(const unsigned int m) __intentional_overflow(-1);
 #if HZ <= MSEC_PER_SEC && !(MSEC_PER_SEC % HZ)
 /*
  * HZ is equal to or smaller than 1000, and 1000 is a nice round
  * multiple of HZ, divide with the factor between them, but round
  * upwards:
  */
-static inline unsigned long _msecs_to_jiffies(const unsigned int m)
+static inline unsigned long __intentional_overflow(-1) _msecs_to_jiffies(const unsigned int m)
 {
 	return (m + (MSEC_PER_SEC / HZ) - 1) / (MSEC_PER_SEC / HZ);
 }
@@ -307,7 +307,7 @@ static inline unsigned long _msecs_to_jiffies(const unsigned int m)
  *
  * But first make sure the multiplication result cannot overflow:
  */
-static inline unsigned long _msecs_to_jiffies(const unsigned int m)
+static inline unsigned long __intentional_overflow(-1) _msecs_to_jiffies(const unsigned int m)
 {
 	if (m > jiffies_to_msecs(MAX_JIFFY_OFFSET))
 		return MAX_JIFFY_OFFSET;
@@ -318,7 +318,7 @@ static inline unsigned long _msecs_to_jiffies(const unsigned int m)
  * Generic case - multiply, round and divide. But first check that if
  * we are doing a net multiplication, that we wouldn't overflow:
  */
-static inline unsigned long _msecs_to_jiffies(const unsigned int m)
+static inline unsigned long __intentional_overflow(-1) _msecs_to_jiffies(const unsigned int m)
 {
 	if (HZ > MSEC_PER_SEC && m > jiffies_to_msecs(MAX_JIFFY_OFFSET))
 		return MAX_JIFFY_OFFSET;
@@ -362,14 +362,14 @@ static __always_inline unsigned long msecs_to_jiffies(const unsigned int m)
 	}
 }
 
-extern unsigned long __usecs_to_jiffies(const unsigned int u);
+extern unsigned long __usecs_to_jiffies(const unsigned int u) __intentional_overflow(-1);
 #if !(USEC_PER_SEC % HZ)
-static inline unsigned long _usecs_to_jiffies(const unsigned int u)
+static inline unsigned long __intentional_overflow(-1) _usecs_to_jiffies(const unsigned int u)
 {
 	return (u + (USEC_PER_SEC / HZ) - 1) / (USEC_PER_SEC / HZ);
 }
 #else
-static inline unsigned long _usecs_to_jiffies(const unsigned int u)
+static inline unsigned long __intentional_overflow(-1) _usecs_to_jiffies(const unsigned int u)
 {
 	return (USEC_TO_HZ_MUL32 * u + USEC_TO_HZ_ADJ32)
 		>> USEC_TO_HZ_SHR32;
diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
index 6883e19..d2c7746 100644
--- a/include/linux/kallsyms.h
+++ b/include/linux/kallsyms.h
@@ -15,7 +15,8 @@
 
 struct module;
 
-#ifdef CONFIG_KALLSYMS
+#if !defined(__INCLUDED_BY_HIDESYM) || !defined(CONFIG_KALLSYMS)
+#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
 /* Lookup the address for a symbol. Returns 0 if not found. */
 unsigned long kallsyms_lookup_name(const char *name);
 
@@ -40,7 +41,7 @@ extern int sprint_symbol_no_offset(char *buffer, unsigned long address);
 extern int sprint_backtrace(char *buffer, unsigned long address);
 
 /* Look up a kernel symbol and print it to the kernel messages. */
-extern void __print_symbol(const char *fmt, unsigned long address);
+extern __printf(1, 3) void __print_symbol(const char *fmt, unsigned long address, ...);
 
 int lookup_symbol_name(unsigned long addr, char *symname);
 int lookup_symbol_attrs(unsigned long addr, unsigned long *size, unsigned long *offset, char *modname, char *name);
@@ -104,21 +105,26 @@ static inline int lookup_symbol_attrs(unsigned long addr, unsigned long *size, u
 }
 
 /* Stupid that this does nothing, but I didn't create this mess. */
-#define __print_symbol(fmt, addr)
+#define __print_symbol(fmt, addr, args...)
 #endif /*CONFIG_KALLSYMS*/
+#else /* when included by kallsyms.c, vsnprintf.c, kprobes.c, or
+	arch/x86/kernel/dumpstack.c, with HIDESYM enabled */
+extern unsigned long kallsyms_lookup_name(const char *name);
+extern __printf(1, 3) void __print_symbol(const char *fmt, unsigned long address, ...);
+extern int sprint_backtrace(char *buffer, unsigned long address);
+extern int sprint_symbol(char *buffer, unsigned long address);
+extern int sprint_symbol_no_offset(char *buffer, unsigned long address);
+const char *kallsyms_lookup(unsigned long addr,
+			    unsigned long *symbolsize,
+			    unsigned long *offset,
+			    char **modname, char *namebuf);
+extern int kallsyms_lookup_size_offset(unsigned long addr,
+				  unsigned long *symbolsize,
+				  unsigned long *offset);
+#endif
 
-/* This macro allows us to keep printk typechecking */
-static __printf(1, 2)
-void __check_printsym_format(const char *fmt, ...)
-{
-}
-
-static inline void print_symbol(const char *fmt, unsigned long addr)
-{
-	__check_printsym_format(fmt, "");
-	__print_symbol(fmt, (unsigned long)
-		       __builtin_extract_return_addr((void *)addr));
-}
+#define print_symbol(fmt, addr) \
+	__print_symbol(fmt, addr, "")
 
 static inline void print_ip_sym(unsigned long ip)
 {
diff --git a/include/linux/key-type.h b/include/linux/key-type.h
index 7463355..30de32e 100644
--- a/include/linux/key-type.h
+++ b/include/linux/key-type.h
@@ -46,7 +46,7 @@ struct key_preparsed_payload {
 	size_t		quotalen;	/* Quota length for proposed payload */
 	time_t		expiry;		/* Expiry time of key */
 	bool		trusted;	/* True if key is trusted */
-};
+} __randomize_layout;
 
 typedef int (*request_key_actor_t)(struct key_construction *key,
 				   const char *op, void *aux);
@@ -151,7 +151,7 @@ struct key_type {
 	/* internal fields */
 	struct list_head	link;		/* link in types list */
 	struct lock_class_key	lock_class;	/* key->sem lock class */
-};
+} __do_const __randomize_layout;
 
 extern struct key_type key_type_keyring;
 
diff --git a/include/linux/kgdb.h b/include/linux/kgdb.h
index e465bb1..19f605fd 100644
--- a/include/linux/kgdb.h
+++ b/include/linux/kgdb.h
@@ -52,7 +52,7 @@ extern int kgdb_connected;
 extern int kgdb_io_module_registered;
 
 extern atomic_t			kgdb_setting_breakpoint;
-extern atomic_t			kgdb_cpu_doing_single_step;
+extern atomic_unchecked_t	kgdb_cpu_doing_single_step;
 
 extern struct task_struct	*kgdb_usethread;
 extern struct task_struct	*kgdb_contthread;
@@ -254,7 +254,7 @@ struct kgdb_arch {
 	void	(*correct_hw_break)(void);
 
 	void	(*enable_nmi)(bool on);
-};
+} __do_const;
 
 /**
  * struct kgdb_io - Describe the interface for an I/O driver to talk with KGDB.
@@ -279,7 +279,7 @@ struct kgdb_io {
 	void			(*pre_exception) (void);
 	void			(*post_exception) (void);
 	int			is_console;
-};
+} __do_const;
 
 extern struct kgdb_arch		arch_kgdb_ops;
 
diff --git a/include/linux/kmemleak.h b/include/linux/kmemleak.h
index 4894c68..7824e6a 100644
--- a/include/linux/kmemleak.h
+++ b/include/linux/kmemleak.h
@@ -27,7 +27,7 @@
 
 extern void kmemleak_init(void) __init;
 extern void kmemleak_alloc(const void *ptr, size_t size, int min_count,
-			   gfp_t gfp) __ref;
+			   gfp_t gfp) __ref __size_overflow(2);
 extern void kmemleak_alloc_percpu(const void __percpu *ptr, size_t size,
 				  gfp_t gfp) __ref;
 extern void kmemleak_free(const void *ptr) __ref;
@@ -63,7 +63,7 @@ static inline void kmemleak_erase(void **ptr)
 static inline void kmemleak_init(void)
 {
 }
-static inline void kmemleak_alloc(const void *ptr, size_t size, int min_count,
+static inline void __size_overflow(2) kmemleak_alloc(const void *ptr, size_t size, int min_count,
 				  gfp_t gfp)
 {
 }
diff --git a/include/linux/kmod.h b/include/linux/kmod.h
index fcfd2bf..bc6316e 100644
--- a/include/linux/kmod.h
+++ b/include/linux/kmod.h
@@ -34,6 +34,8 @@ extern char modprobe_path[]; /* for sysctl */
  * usually useless though. */
 extern __printf(2, 3)
 int __request_module(bool wait, const char *name, ...);
+extern __printf(3, 4)
+int ___request_module(bool wait, char *param_name, const char *name, ...);
 #define request_module(mod...) __request_module(true, mod)
 #define request_module_nowait(mod...) __request_module(false, mod)
 #define try_then_request_module(x, mod...) \
@@ -57,6 +59,9 @@ struct subprocess_info {
 	struct work_struct work;
 	struct completion *complete;
 	char *path;
+#ifdef CONFIG_GRKERNSEC
+	char *origpath;
+#endif
 	char **argv;
 	char **envp;
 	int wait;
diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index e628459..5985b6e 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -119,7 +119,7 @@ struct kobj_type {
 	struct attribute **default_attrs;
 	const struct kobj_ns_type_operations *(*child_ns_type)(struct kobject *kobj);
 	const void *(*namespace)(struct kobject *kobj);
-};
+} __do_const;
 
 struct kobj_uevent_env {
 	char *argv[3];
@@ -143,6 +143,7 @@ struct kobj_attribute {
 	ssize_t (*store)(struct kobject *kobj, struct kobj_attribute *attr,
 			 const char *buf, size_t count);
 };
+typedef struct kobj_attribute __no_const kobj_attribute_no_const;
 
 extern const struct sysfs_ops kobj_sysfs_ops;
 
@@ -170,7 +171,7 @@ struct kset {
 	spinlock_t list_lock;
 	struct kobject kobj;
 	const struct kset_uevent_ops *uevent_ops;
-};
+} __randomize_layout;
 
 extern void kset_init(struct kset *kset);
 extern int __must_check kset_register(struct kset *kset);
diff --git a/include/linux/kobject_ns.h b/include/linux/kobject_ns.h
index df32d25..fb52e27 100644
--- a/include/linux/kobject_ns.h
+++ b/include/linux/kobject_ns.h
@@ -44,7 +44,7 @@ struct kobj_ns_type_operations {
 	const void *(*netlink_ns)(struct sock *sk);
 	const void *(*initial_ns)(void);
 	void (*drop_ns)(void *);
-};
+} __do_const;
 
 int kobj_ns_type_register(const struct kobj_ns_type_operations *ops);
 int kobj_ns_type_registered(enum kobj_ns_type type);
diff --git a/include/linux/kref.h b/include/linux/kref.h
index e15828f..531fd0a 100644
--- a/include/linux/kref.h
+++ b/include/linux/kref.h
@@ -67,7 +67,7 @@ static inline void kref_get(struct kref *kref)
 static inline int kref_sub(struct kref *kref, unsigned int count,
 	     void (*release)(struct kref *kref))
 {
-	WARN_ON(release == NULL);
+	BUG_ON(release == NULL);
 
 	if (atomic_sub_and_test((int) count, &kref->refcount)) {
 		release(kref);
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 2c4ebef..f452c4d 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -994,7 +994,7 @@ struct ata_port_operations {
 	 * fields must be pointers.
 	 */
 	const struct ata_port_operations	*inherits;
-};
+} __do_const;
 
 struct ata_port_info {
 	unsigned long		flags;
diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index a6a42dd..e270819 100644
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -5,6 +5,7 @@
 #include <linux/stringify.h>
 #include <linux/export.h>
 #include <asm/linkage.h>
+#include <asm/bitsperlong.h>
 
 /* Some toolchains use other characters (e.g. '`') to mark new line in macro */
 #ifndef ASM_NL
@@ -36,6 +37,7 @@
 #endif
 
 #define __page_aligned_data	__section(.data..page_aligned) __aligned(PAGE_SIZE)
+#define __page_aligned_rodata	__read_only __aligned(PAGE_SIZE)
 #define __page_aligned_bss	__section(.bss..page_aligned) __aligned(PAGE_SIZE)
 
 /*
@@ -79,11 +81,29 @@
 #define ALIGN_STR __ALIGN_STR
 
 #ifndef ENTRY
-#define ENTRY(name) \
+#define __ENTRY(name, rap_hash) \
 	.globl name ASM_NL \
 	ALIGN ASM_NL \
+	rap_hash \
 	name:
+
+#define ENTRY(name) __ENTRY(name,)
+
+#ifdef CONFIG_PAX_RAP
+#if BITS_PER_LONG == 64
+#define __ASM_RAP_HASH(hash) .quad 0, hash ASM_NL
+#elif BITS_PER_LONG == 32
+#define __ASM_RAP_HASH(hash) .long 0, 0, 0, hash ASM_NL
+#else
+#error incompatible BITS_PER_LONG
 #endif
+#define RAP_ENTRY(name) __ENTRY(name, __ASM_RAP_HASH(__rap_hash_##name))
+#else
+#define RAP_ENTRY(name) ENTRY(name)
+#endif
+
+#endif
+
 #endif /* LINKER_SCRIPT */
 
 #ifndef WEAK
diff --git a/include/linux/list.h b/include/linux/list.h
index 5356f4d..c99970b 100644
--- a/include/linux/list.h
+++ b/include/linux/list.h
@@ -113,6 +113,19 @@ extern void __list_del_entry(struct list_head *entry);
 extern void list_del(struct list_head *entry);
 #endif
 
+extern void __pax_list_add(struct list_head *new,
+			      struct list_head *prev,
+			      struct list_head *next);
+static inline void pax_list_add(struct list_head *new, struct list_head *head)
+{
+	__pax_list_add(new, head, head->next);
+}
+static inline void pax_list_add_tail(struct list_head *new, struct list_head *head)
+{
+	__pax_list_add(new, head->prev, head);
+}
+extern void pax_list_del(struct list_head *entry);
+
 /**
  * list_replace - replace old entry by new one
  * @old : the element to be replaced
@@ -146,6 +159,8 @@ static inline void list_del_init(struct list_head *entry)
 	INIT_LIST_HEAD(entry);
 }
 
+extern void pax_list_del_init(struct list_head *entry);
+
 /**
  * list_move - delete from one list and add as another's head
  * @list: the entry to move
diff --git a/include/linux/lockd/xdr.h b/include/linux/lockd/xdr.h
index d39ed1c..8b5d98f 100644
--- a/include/linux/lockd/xdr.h
+++ b/include/linux/lockd/xdr.h
@@ -95,24 +95,24 @@ struct nlm_reboot {
  */
 #define NLMSVC_XDRSIZE		sizeof(struct nlm_args)
 
-int	nlmsvc_decode_testargs(struct svc_rqst *, __be32 *, struct nlm_args *);
-int	nlmsvc_encode_testres(struct svc_rqst *, __be32 *, struct nlm_res *);
-int	nlmsvc_decode_lockargs(struct svc_rqst *, __be32 *, struct nlm_args *);
-int	nlmsvc_decode_cancargs(struct svc_rqst *, __be32 *, struct nlm_args *);
-int	nlmsvc_decode_unlockargs(struct svc_rqst *, __be32 *, struct nlm_args *);
-int	nlmsvc_encode_res(struct svc_rqst *, __be32 *, struct nlm_res *);
-int	nlmsvc_decode_res(struct svc_rqst *, __be32 *, struct nlm_res *);
-int	nlmsvc_encode_void(struct svc_rqst *, __be32 *, void *);
-int	nlmsvc_decode_void(struct svc_rqst *, __be32 *, void *);
-int	nlmsvc_decode_shareargs(struct svc_rqst *, __be32 *, struct nlm_args *);
-int	nlmsvc_encode_shareres(struct svc_rqst *, __be32 *, struct nlm_res *);
-int	nlmsvc_decode_notify(struct svc_rqst *, __be32 *, struct nlm_args *);
-int	nlmsvc_decode_reboot(struct svc_rqst *, __be32 *, struct nlm_reboot *);
+int	nlmsvc_decode_testargs(void *, __be32 *, void *);
+int	nlmsvc_encode_testres(void *, __be32 *, void *);
+int	nlmsvc_decode_lockargs(void *, __be32 *, void *);
+int	nlmsvc_decode_cancargs(void *, __be32 *, void *);
+int	nlmsvc_decode_unlockargs(void *, __be32 *, void *);
+int	nlmsvc_encode_res(void *, __be32 *, void *);
+int	nlmsvc_decode_res(void *, __be32 *, void *);
+int	nlmsvc_encode_void(void *, __be32 *p, void *);
+int	nlmsvc_decode_void(void *, __be32 *, void *);
+int	nlmsvc_decode_shareargs(void *, __be32 *, void *);
+int	nlmsvc_encode_shareres(void *, __be32 *, void *);
+int	nlmsvc_decode_notify(void *, __be32 *, void *);
+int	nlmsvc_decode_reboot(void *, __be32 *, void *);
 /*
-int	nlmclt_encode_testargs(struct rpc_rqst *, u32 *, struct nlm_args *);
-int	nlmclt_encode_lockargs(struct rpc_rqst *, u32 *, struct nlm_args *);
-int	nlmclt_encode_cancargs(struct rpc_rqst *, u32 *, struct nlm_args *);
-int	nlmclt_encode_unlockargs(struct rpc_rqst *, u32 *, struct nlm_args *);
+int	nlmclt_encode_testargs(void *, u32 *, void *);
+int	nlmclt_encode_lockargs(void *, u32 *, void *);
+int	nlmclt_encode_cancargs(void *, u32 *, void *);
+int	nlmclt_encode_unlockargs(void *, u32 *, void *);
  */
 
 #endif /* LOCKD_XDR_H */
diff --git a/include/linux/lockd/xdr4.h b/include/linux/lockd/xdr4.h
index e58c88b..759ca71 100644
--- a/include/linux/lockd/xdr4.h
+++ b/include/linux/lockd/xdr4.h
@@ -23,24 +23,24 @@
 
 
 
-int	nlm4svc_decode_testargs(struct svc_rqst *, __be32 *, struct nlm_args *);
-int	nlm4svc_encode_testres(struct svc_rqst *, __be32 *, struct nlm_res *);
-int	nlm4svc_decode_lockargs(struct svc_rqst *, __be32 *, struct nlm_args *);
-int	nlm4svc_decode_cancargs(struct svc_rqst *, __be32 *, struct nlm_args *);
-int	nlm4svc_decode_unlockargs(struct svc_rqst *, __be32 *, struct nlm_args *);
-int	nlm4svc_encode_res(struct svc_rqst *, __be32 *, struct nlm_res *);
-int	nlm4svc_decode_res(struct svc_rqst *, __be32 *, struct nlm_res *);
-int	nlm4svc_encode_void(struct svc_rqst *, __be32 *, void *);
-int	nlm4svc_decode_void(struct svc_rqst *, __be32 *, void *);
-int	nlm4svc_decode_shareargs(struct svc_rqst *, __be32 *, struct nlm_args *);
-int	nlm4svc_encode_shareres(struct svc_rqst *, __be32 *, struct nlm_res *);
-int	nlm4svc_decode_notify(struct svc_rqst *, __be32 *, struct nlm_args *);
-int	nlm4svc_decode_reboot(struct svc_rqst *, __be32 *, struct nlm_reboot *);
+int	nlm4svc_decode_testargs(void *, __be32 *, void *);
+int	nlm4svc_encode_testres(void *, __be32 *, void *);
+int	nlm4svc_decode_lockargs(void *, __be32 *, void *);
+int	nlm4svc_decode_cancargs(void *, __be32 *, void *);
+int	nlm4svc_decode_unlockargs(void *, __be32 *, void *);
+int	nlm4svc_encode_res(void *, __be32 *, void *);
+int	nlm4svc_decode_res(void *, __be32 *, void *);
+int	nlm4svc_encode_void(void *, __be32 *, void *);
+int	nlm4svc_decode_void(void *, __be32 *, void *);
+int	nlm4svc_decode_shareargs(void *, __be32 *, void *);
+int	nlm4svc_encode_shareres(void *, __be32 *, void *);
+int	nlm4svc_decode_notify(void *, __be32 *, void *);
+int	nlm4svc_decode_reboot(void *, __be32 *, void *);
 /*
-int	nlmclt_encode_testargs(struct rpc_rqst *, u32 *, struct nlm_args *);
-int	nlmclt_encode_lockargs(struct rpc_rqst *, u32 *, struct nlm_args *);
-int	nlmclt_encode_cancargs(struct rpc_rqst *, u32 *, struct nlm_args *);
-int	nlmclt_encode_unlockargs(struct rpc_rqst *, u32 *, struct nlm_args *);
+int	nlmclt_encode_testargs(void *, u32 *, void *);
+int	nlmclt_encode_lockargs(void *, u32 *, void *);
+int	nlmclt_encode_cancargs(void *, u32 *, void *);
+int	nlmclt_encode_unlockargs(void *, u32 *, void *);
  */
 extern const struct rpc_version nlm_version4;
 
diff --git a/include/linux/lockref.h b/include/linux/lockref.h
index b10b122..d37b3de 100644
--- a/include/linux/lockref.h
+++ b/include/linux/lockref.h
@@ -28,7 +28,7 @@ struct lockref {
 #endif
 		struct {
 			spinlock_t lock;
-			int count;
+			atomic_t count;
 		};
 	};
 };
@@ -43,9 +43,29 @@ extern void lockref_mark_dead(struct lockref *);
 extern int lockref_get_not_dead(struct lockref *);
 
 /* Must be called under spinlock for reliable results */
-static inline int __lockref_is_dead(const struct lockref *l)
+static inline int __lockref_is_dead(const struct lockref *lockref)
 {
-	return ((int)l->count < 0);
+	return atomic_read(&lockref->count) < 0;
+}
+
+static inline int __lockref_read(const struct lockref *lockref)
+{
+	return atomic_read(&lockref->count);
+}
+
+static inline void __lockref_set(struct lockref *lockref, int count)
+{
+	atomic_set(&lockref->count, count);
+}
+
+static inline void __lockref_inc(struct lockref *lockref)
+{
+	atomic_inc(&lockref->count);
+}
+
+static inline void __lockref_dec(struct lockref *lockref)
+{
+	atomic_dec(&lockref->count);
 }
 
 #endif /* __LINUX_LOCKREF_H */
diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h
index cdee11c..bc64d98 100644
--- a/include/linux/lsm_hooks.h
+++ b/include/linux/lsm_hooks.h
@@ -1831,7 +1831,7 @@ struct security_hook_heads {
 	struct list_head audit_rule_match;
 	struct list_head audit_rule_free;
 #endif /* CONFIG_AUDIT */
-};
+} __randomize_layout;
 
 /*
  * Security module hook list structure.
@@ -1841,7 +1841,7 @@ struct security_hook_list {
 	struct list_head		list;
 	struct list_head		*head;
 	union security_list_options	hook;
-};
+} __randomize_layout;
 
 /*
  * Initializing a security_hook_list structure takes
diff --git a/include/linux/math64.h b/include/linux/math64.h
index 6e8b5b2..8e8a37d 100644
--- a/include/linux/math64.h
+++ b/include/linux/math64.h
@@ -15,7 +15,7 @@
  * This is commonly provided by 32bit archs to provide an optimized 64bit
  * divide.
  */
-static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
+static inline u64 __intentional_overflow(-1) div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
 {
 	*remainder = dividend % divisor;
 	return dividend / divisor;
@@ -42,7 +42,7 @@ static inline u64 div64_u64_rem(u64 dividend, u64 divisor, u64 *remainder)
 /**
  * div64_u64 - unsigned 64bit divide with 64bit divisor
  */
-static inline u64 div64_u64(u64 dividend, u64 divisor)
+static inline u64 __intentional_overflow(-1) div64_u64(u64 dividend, u64 divisor)
 {
 	return dividend / divisor;
 }
@@ -61,7 +61,7 @@ static inline s64 div64_s64(s64 dividend, s64 divisor)
 #define div64_ul(x, y)   div_u64((x), (y))
 
 #ifndef div_u64_rem
-static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
+static inline u64 __intentional_overflow(-1) div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
 {
 	*remainder = do_div(dividend, divisor);
 	return dividend;
@@ -77,7 +77,7 @@ extern u64 div64_u64_rem(u64 dividend, u64 divisor, u64 *remainder);
 #endif
 
 #ifndef div64_u64
-extern u64 div64_u64(u64 dividend, u64 divisor);
+extern u64 __intentional_overflow(-1) div64_u64(u64 dividend, u64 divisor);
 #endif
 
 #ifndef div64_s64
@@ -94,7 +94,7 @@ extern s64 div64_s64(s64 dividend, s64 divisor);
  * divide.
  */
 #ifndef div_u64
-static inline u64 div_u64(u64 dividend, u32 divisor)
+static inline u64 __intentional_overflow(-1) div_u64(u64 dividend, u32 divisor)
 {
 	u32 remainder;
 	return div_u64_rem(dividend, divisor, &remainder);
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 1191d79..0c73b8a 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -254,7 +254,7 @@ struct mem_cgroup {
 	int last_scanned_node;
 #if MAX_NUMNODES > 1
 	nodemask_t	scan_nodes;
-	atomic_t	numainfo_events;
+	atomic64_t	numainfo_events;
 	atomic_t	numainfo_updating;
 #endif
 
diff --git a/include/linux/memory.h b/include/linux/memory.h
index 093607f..9717227 100644
--- a/include/linux/memory.h
+++ b/include/linux/memory.h
@@ -126,7 +126,7 @@ extern struct memory_block *find_memory_block(struct mem_section *);
 
 #ifdef CONFIG_MEMORY_HOTPLUG
 #define hotplug_memory_notifier(fn, pri) ({		\
-	static __meminitdata struct notifier_block fn##_mem_nb =\
+	static __meminitconst struct notifier_block fn##_mem_nb =\
 		{ .notifier_call = fn, .priority = pri };\
 	register_memory_notifier(&fn##_mem_nb);			\
 })
diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h
index 2696c1f..9320d41 100644
--- a/include/linux/mempolicy.h
+++ b/include/linux/mempolicy.h
@@ -91,6 +91,10 @@ static inline struct mempolicy *mpol_dup(struct mempolicy *pol)
 }
 
 #define vma_policy(vma) ((vma)->vm_policy)
+static inline void set_vma_policy(struct vm_area_struct *vma, struct mempolicy *pol)
+{
+	vma->vm_policy = pol;
+}
 
 static inline void mpol_get(struct mempolicy *pol)
 {
@@ -229,6 +233,9 @@ static inline void mpol_free_shared_policy(struct shared_policy *p)
 }
 
 #define vma_policy(vma) NULL
+static inline void set_vma_policy(struct vm_area_struct *vma, struct mempolicy *pol)
+{
+}
 
 static inline int
 vma_dup_policy(struct vm_area_struct *src, struct vm_area_struct *dst)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 02f7f31..efa7da3c 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -103,6 +103,7 @@ extern int mmap_rnd_compat_bits __read_mostly;
 #define DEFAULT_MAX_MAP_COUNT	(USHRT_MAX - MAPCOUNT_ELF_CORE_MARGIN)
 
 extern int sysctl_max_map_count;
+extern unsigned long sysctl_heap_stack_gap;
 
 extern unsigned long sysctl_user_reserve_kbytes;
 extern unsigned long sysctl_admin_reserve_kbytes;
@@ -178,6 +179,11 @@ extern unsigned int kobjsize(const void *objp);
 #define VM_ACCOUNT	0x00100000	/* Is a VM accounted object */
 #define VM_NORESERVE	0x00200000	/* should the VM suppress accounting */
 #define VM_HUGETLB	0x00400000	/* Huge TLB Page VM */
+
+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
+#define VM_PAGEEXEC	0x00800000	/* vma->vm_page_prot needs special handling */
+#endif
+
 #define VM_ARCH_1	0x01000000	/* Architecture-specific flag */
 #define VM_ARCH_2	0x02000000
 #define VM_DONTDUMP	0x04000000	/* Do not include in the core dump */
@@ -329,8 +335,8 @@ struct vm_operations_struct {
 	/* called by access_process_vm when get_user_pages() fails, typically
 	 * for use by special VMAs that can switch between memory and hardware
 	 */
-	int (*access)(struct vm_area_struct *vma, unsigned long addr,
-		      void *buf, int len, int write);
+	ssize_t (*access)(struct vm_area_struct *vma, unsigned long addr,
+		      void *buf, size_t len, int write);
 
 	/* Called by the /proc/PID/maps code to ask the vma whether it
 	 * has a special name.  Returning non-NULL will also cause this
@@ -368,6 +374,7 @@ struct vm_operations_struct {
 	struct page *(*find_special_page)(struct vm_area_struct *vma,
 					  unsigned long addr);
 };
+typedef struct vm_operations_struct __no_const vm_operations_struct_no_const;
 
 struct mmu_gather;
 struct inode;
@@ -1209,8 +1216,8 @@ int follow_pfn(struct vm_area_struct *vma, unsigned long address,
 	unsigned long *pfn);
 int follow_phys(struct vm_area_struct *vma, unsigned long address,
 		unsigned int flags, unsigned long *prot, resource_size_t *phys);
-int generic_access_phys(struct vm_area_struct *vma, unsigned long addr,
-			void *buf, int len, int write);
+ssize_t generic_access_phys(struct vm_area_struct *vma, unsigned long addr,
+			void *buf, size_t len, int write);
 
 static inline void unmap_shared_mapping_range(struct address_space *mapping,
 		loff_t const holebegin, loff_t const holelen)
@@ -1251,9 +1258,9 @@ static inline int fixup_user_fault(struct task_struct *tsk,
 }
 #endif
 
-extern int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write);
-extern int access_remote_vm(struct mm_struct *mm, unsigned long addr,
-		void *buf, int len, int write);
+extern ssize_t access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, size_t len, int write);
+extern ssize_t access_remote_vm(struct mm_struct *mm, unsigned long addr,
+		void *buf, size_t len, int write);
 
 long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
 		      unsigned long start, unsigned long nr_pages,
@@ -1343,39 +1350,11 @@ int clear_page_dirty_for_io(struct page *page);
 
 int get_cmdline(struct task_struct *task, char *buffer, int buflen);
 
-/* Is the vma a continuation of the stack vma above it? */
-static inline int vma_growsdown(struct vm_area_struct *vma, unsigned long addr)
-{
-	return vma && (vma->vm_end == addr) && (vma->vm_flags & VM_GROWSDOWN);
-}
-
 static inline bool vma_is_anonymous(struct vm_area_struct *vma)
 {
 	return !vma->vm_ops;
 }
 
-static inline int stack_guard_page_start(struct vm_area_struct *vma,
-					     unsigned long addr)
-{
-	return (vma->vm_flags & VM_GROWSDOWN) &&
-		(vma->vm_start == addr) &&
-		!vma_growsdown(vma->vm_prev, addr);
-}
-
-/* Is the vma a continuation of the stack vma below it? */
-static inline int vma_growsup(struct vm_area_struct *vma, unsigned long addr)
-{
-	return vma && (vma->vm_start == addr) && (vma->vm_flags & VM_GROWSUP);
-}
-
-static inline int stack_guard_page_end(struct vm_area_struct *vma,
-					   unsigned long addr)
-{
-	return (vma->vm_flags & VM_GROWSUP) &&
-		(vma->vm_end == addr) &&
-		!vma_growsup(vma->vm_next, addr);
-}
-
 int vma_is_stack_for_task(struct vm_area_struct *vma, struct task_struct *t);
 
 extern unsigned long move_page_tables(struct vm_area_struct *vma,
@@ -1520,8 +1499,15 @@ static inline int __pud_alloc(struct mm_struct *mm, pgd_t *pgd,
 {
 	return 0;
 }
+
+static inline int __pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd,
+						unsigned long address)
+{
+	return 0;
+}
 #else
 int __pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address);
+int __pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd, unsigned long address);
 #endif
 
 #if defined(__PAGETABLE_PMD_FOLDED) || !defined(CONFIG_MMU)
@@ -1531,6 +1517,12 @@ static inline int __pmd_alloc(struct mm_struct *mm, pud_t *pud,
 	return 0;
 }
 
+static inline int __pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud,
+						unsigned long address)
+{
+	return 0;
+}
+
 static inline void mm_nr_pmds_init(struct mm_struct *mm) {}
 
 static inline unsigned long mm_nr_pmds(struct mm_struct *mm)
@@ -1543,6 +1535,7 @@ static inline void mm_dec_nr_pmds(struct mm_struct *mm) {}
 
 #else
 int __pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address);
+int __pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud, unsigned long address);
 
 static inline void mm_nr_pmds_init(struct mm_struct *mm)
 {
@@ -1579,11 +1572,23 @@ static inline pud_t *pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long a
 		NULL: pud_offset(pgd, address);
 }
 
+static inline pud_t *pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
+{
+	return (unlikely(pgd_none(*pgd)) && __pud_alloc_kernel(mm, pgd, address))?
+		NULL: pud_offset(pgd, address);
+}
+
 static inline pmd_t *pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address)
 {
 	return (unlikely(pud_none(*pud)) && __pmd_alloc(mm, pud, address))?
 		NULL: pmd_offset(pud, address);
 }
+
+static inline pmd_t *pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud, unsigned long address)
+{
+	return (unlikely(pud_none(*pud)) && __pmd_alloc_kernel(mm, pud, address))?
+		NULL: pmd_offset(pud, address);
+}
 #endif /* CONFIG_MMU && !__ARCH_HAS_4LEVEL_HACK */
 
 #if USE_SPLIT_PTE_PTLOCKS
@@ -1968,12 +1973,23 @@ extern struct vm_area_struct *copy_vma(struct vm_area_struct **,
 	bool *need_rmap_locks);
 extern void exit_mmap(struct mm_struct *);
 
+#if defined(CONFIG_GRKERNSEC) && (defined(CONFIG_GRKERNSEC_RESLOG) || !defined(CONFIG_GRKERNSEC_NO_RBAC))
+extern void gr_learn_resource(const struct task_struct *task, const int res,
+			      const unsigned long wanted, const int gt);
+#else
+static inline void gr_learn_resource(const struct task_struct *task, const int res,
+				     const unsigned long wanted, const int gt)
+{
+}
+#endif
+
 static inline int check_data_rlimit(unsigned long rlim,
 				    unsigned long new,
 				    unsigned long start,
 				    unsigned long end_data,
 				    unsigned long start_data)
 {
+	gr_learn_resource(current, RLIMIT_DATA, (new - start) + (end_data - start_data), 1);
 	if (rlim < RLIM_INFINITY) {
 		if (((new - start) + (end_data - start_data)) > rlim)
 			return -ENOSPC;
@@ -2008,6 +2024,7 @@ extern unsigned long do_mmap(struct file *file, unsigned long addr,
 	unsigned long len, unsigned long prot, unsigned long flags,
 	vm_flags_t vm_flags, unsigned long pgoff, unsigned long *populate);
 extern int do_munmap(struct mm_struct *, unsigned long, size_t);
+extern int __do_munmap(struct mm_struct *, unsigned long, size_t);
 
 static inline unsigned long
 do_mmap_pgoff(struct file *file, unsigned long addr,
@@ -2044,10 +2061,11 @@ struct vm_unmapped_area_info {
 	unsigned long high_limit;
 	unsigned long align_mask;
 	unsigned long align_offset;
+	unsigned long threadstack_offset;
 };
 
-extern unsigned long unmapped_area(struct vm_unmapped_area_info *info);
-extern unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info);
+extern unsigned long unmapped_area(const struct vm_unmapped_area_info *info);
+extern unsigned long unmapped_area_topdown(const struct vm_unmapped_area_info *info);
 
 /*
  * Search for an unmapped address range.
@@ -2059,7 +2077,7 @@ extern unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info);
  * - satisfies (begin_addr & align_mask) == (align_offset & align_mask)
  */
 static inline unsigned long
-vm_unmapped_area(struct vm_unmapped_area_info *info)
+vm_unmapped_area(const struct vm_unmapped_area_info *info)
 {
 	if (info->flags & VM_UNMAPPED_AREA_TOPDOWN)
 		return unmapped_area_topdown(info);
@@ -2119,6 +2137,10 @@ extern struct vm_area_struct * find_vma(struct mm_struct * mm, unsigned long add
 extern struct vm_area_struct * find_vma_prev(struct mm_struct * mm, unsigned long addr,
 					     struct vm_area_struct **pprev);
 
+extern struct vm_area_struct *pax_find_mirror_vma(struct vm_area_struct *vma);
+extern __must_check long pax_mirror_vma(struct vm_area_struct *vma_m, struct vm_area_struct *vma);
+extern void pax_mirror_file_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl);
+
 /* Look up the first VMA which intersects the interval start_addr..end_addr-1,
    NULL if none.  Assume start_addr < end_addr. */
 static inline struct vm_area_struct * find_vma_intersection(struct mm_struct * mm, unsigned long start_addr, unsigned long end_addr)
@@ -2148,10 +2170,10 @@ static inline struct vm_area_struct *find_exact_vma(struct mm_struct *mm,
 }
 
 #ifdef CONFIG_MMU
-pgprot_t vm_get_page_prot(unsigned long vm_flags);
+pgprot_t vm_get_page_prot(vm_flags_t vm_flags);
 void vma_set_page_prot(struct vm_area_struct *vma);
 #else
-static inline pgprot_t vm_get_page_prot(unsigned long vm_flags)
+static inline pgprot_t vm_get_page_prot(vm_flags_t vm_flags)
 {
 	return __pgprot(0);
 }
@@ -2334,7 +2356,7 @@ extern int get_hwpoison_page(struct page *page);
 extern int sysctl_memory_failure_early_kill;
 extern int sysctl_memory_failure_recovery;
 extern void shake_page(struct page *p, int access);
-extern atomic_long_t num_poisoned_pages;
+extern atomic_long_unchecked_t num_poisoned_pages;
 extern int soft_offline_page(struct page *page, int flags);
 
 
@@ -2419,5 +2441,11 @@ void __init setup_nr_node_ids(void);
 static inline void setup_nr_node_ids(void) {}
 #endif
 
+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
+extern void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot);
+#else
+static inline void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot) {}
+#endif
+
 #endif /* __KERNEL__ */
 #endif /* _LINUX_MM_H */
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index c2d75b4..f12e13a 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -352,7 +352,9 @@ struct vm_area_struct {
 	struct mempolicy *vm_policy;	/* NUMA policy for the VMA */
 #endif
 	struct vm_userfaultfd_ctx vm_userfaultfd_ctx;
-};
+
+	struct vm_area_struct *vm_mirror;/* PaX: mirror vma or NULL */
+} __randomize_layout;
 
 struct core_thread {
 	struct task_struct *task;
@@ -509,7 +511,25 @@ struct mm_struct {
 #ifdef CONFIG_HUGETLB_PAGE
 	atomic_long_t hugetlb_usage;
 #endif
-};
+
+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
+	unsigned long pax_flags;
+#endif
+
+#ifdef CONFIG_PAX_DLRESOLVE
+	unsigned long call_dl_resolve;
+#endif
+
+#if defined(CONFIG_PPC32) && defined(CONFIG_PAX_EMUSIGRT)
+	unsigned long call_syscall;
+#endif
+
+#ifdef CONFIG_PAX_ASLR
+	unsigned long delta_mmap;		/* randomized offset */
+	unsigned long delta_stack;		/* randomized offset */
+#endif
+
+} __randomize_layout;
 
 static inline void mm_init_cpumask(struct mm_struct *mm)
 {
diff --git a/include/linux/mmiotrace.h b/include/linux/mmiotrace.h
index 3ba327a..85cd5ce 100644
--- a/include/linux/mmiotrace.h
+++ b/include/linux/mmiotrace.h
@@ -46,7 +46,7 @@ extern int kmmio_handler(struct pt_regs *regs, unsigned long addr);
 /* Called from ioremap.c */
 extern void mmiotrace_ioremap(resource_size_t offset, unsigned long size,
 							void __iomem *addr);
-extern void mmiotrace_iounmap(volatile void __iomem *addr);
+extern void mmiotrace_iounmap(const volatile void __iomem *addr);
 
 /* For anyone to insert markers. Remember trailing newline. */
 extern __printf(1, 2) int mmiotrace_printk(const char *fmt, ...);
@@ -66,7 +66,7 @@ static inline void mmiotrace_ioremap(resource_size_t offset,
 {
 }
 
-static inline void mmiotrace_iounmap(volatile void __iomem *addr)
+static inline void mmiotrace_iounmap(const volatile void __iomem *addr)
 {
 }
 
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index c60df92..76f3303 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -526,7 +526,7 @@ struct zone {
 
 	ZONE_PADDING(_pad3_)
 	/* Zone statistics */
-	atomic_long_t		vm_stat[NR_VM_ZONE_STAT_ITEMS];
+	atomic_long_unchecked_t		vm_stat[NR_VM_ZONE_STAT_ITEMS];
 } ____cacheline_internodealigned_in_smp;
 
 enum zone_flags {
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 6e4c645..3633f7b 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -139,7 +139,7 @@ struct usb_device_id {
 #define USB_DEVICE_ID_MATCH_INT_PROTOCOL	0x0200
 #define USB_DEVICE_ID_MATCH_INT_NUMBER		0x0400
 
-#define HID_ANY_ID				(~0)
+#define HID_ANY_ID				(~0U)
 #define HID_BUS_ANY				0xffff
 #define HID_GROUP_ANY				0x0000
 
@@ -480,7 +480,7 @@ struct dmi_system_id {
 	const char *ident;
 	struct dmi_strmatch matches[4];
 	void *driver_data;
-};
+} __do_const;
 /*
  * struct dmi_device_id appears during expansion of
  * "MODULE_DEVICE_TABLE(dmi, x)". Compiler doesn't look inside it
diff --git a/include/linux/module.h b/include/linux/module.h
index 2bb0c30..dc42cbc 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -19,9 +19,11 @@
 #include <linux/jump_label.h>
 #include <linux/export.h>
 #include <linux/rbtree_latch.h>
+#include <linux/fs.h>
 
 #include <linux/percpu.h>
 #include <asm/module.h>
+#include <asm/pgtable.h>
 
 /* In stripped ARM and x86-64 modules, ~ is surprisingly rare. */
 #define MODULE_SIG_STRING "~Module signature appended~\n"
@@ -44,7 +46,7 @@ struct module_kobject {
 	struct kobject *drivers_dir;
 	struct module_param_attrs *mp;
 	struct completion *kobj_completion;
-};
+} __randomize_layout;
 
 struct module_attribute {
 	struct attribute attr;
@@ -56,12 +58,13 @@ struct module_attribute {
 	int (*test)(struct module *);
 	void (*free)(struct module *);
 };
+typedef struct module_attribute __no_const module_attribute_no_const;
 
 struct module_version_attribute {
 	struct module_attribute mattr;
 	const char *module_name;
 	const char *version;
-} __attribute__ ((__aligned__(sizeof(void *))));
+} __do_const __attribute__ ((__aligned__(sizeof(void *))));
 
 extern ssize_t __modver_version_show(struct module_attribute *,
 				     struct module_kobject *, char *);
@@ -303,17 +306,18 @@ struct mod_tree_node {
 };
 
 struct module_layout {
-	/* The actual code + data. */
-	void *base;
-	/* Total size. */
-	unsigned int size;
-	/* The size of the executable code.  */
-	unsigned int text_size;
-	/* Size of RO section of the module (text+rodata) */
-	unsigned int ro_size;
+	/* The actual code. */
+	void *base_rx;
+	/* The actual data. */
+	void *base_rw;
+	/* Code size. */
+	unsigned int size_rx;
+	/* Data size. */
+	unsigned int size_rw;
 
 #ifdef CONFIG_MODULES_TREE_LOOKUP
-	struct mod_tree_node mtn;
+	struct mod_tree_node mtn_rx;
+	struct mod_tree_node mtn_rw;
 #endif
 };
 
@@ -341,7 +345,7 @@ struct module {
 
 	/* Sysfs stuff. */
 	struct module_kobject mkobj;
-	struct module_attribute *modinfo_attrs;
+	module_attribute_no_const *modinfo_attrs;
 	const char *version;
 	const char *srcversion;
 	struct kobject *holders_dir;
@@ -449,6 +453,10 @@ struct module {
 	unsigned int num_trace_events;
 	struct trace_enum_map **trace_enums;
 	unsigned int num_trace_enums;
+	struct file_operations trace_id;
+	struct file_operations trace_enable;
+	struct file_operations trace_format;
+	struct file_operations trace_filter;
 #endif
 #ifdef CONFIG_FTRACE_MCOUNT_RECORD
 	unsigned int num_ftrace_callsites;
@@ -476,7 +484,8 @@ struct module {
 	ctor_fn_t *ctors;
 	unsigned int num_ctors;
 #endif
-} ____cacheline_aligned;
+} ____cacheline_aligned __randomize_layout;
+
 #ifndef MODULE_ARCH_INIT
 #define MODULE_ARCH_INIT {}
 #endif
@@ -497,18 +506,38 @@ bool is_module_address(unsigned long addr);
 bool is_module_percpu_address(unsigned long addr);
 bool is_module_text_address(unsigned long addr);
 
+static inline int within_module_range(unsigned long addr, void *start, unsigned long size)
+{
+
+#ifdef CONFIG_PAX_KERNEXEC
+	if (ktla_ktva(addr) >= (unsigned long)start &&
+	    ktla_ktva(addr) < (unsigned long)start + size)
+		return 1;
+#endif
+
+	return ((void *)addr >= start && (void *)addr < start + size);
+}
+
+static inline int within_module_rx(unsigned long addr, const struct module_layout *layout)
+{
+	return within_module_range(addr, layout->base_rx, layout->size_rx);
+}
+
+static inline int within_module_rw(unsigned long addr, const struct module_layout *layout)
+{
+	return within_module_range(addr, layout->base_rw, layout->size_rw);
+}
+
 static inline bool within_module_core(unsigned long addr,
 				      const struct module *mod)
 {
-	return (unsigned long)mod->core_layout.base <= addr &&
-	       addr < (unsigned long)mod->core_layout.base + mod->core_layout.size;
+	return within_module_rx(addr, &mod->core_layout) || within_module_rw(addr, &mod->core_layout);
 }
 
 static inline bool within_module_init(unsigned long addr,
 				      const struct module *mod)
 {
-	return (unsigned long)mod->init_layout.base <= addr &&
-	       addr < (unsigned long)mod->init_layout.base + mod->init_layout.size;
+	return within_module_rx(addr, &mod->init_layout) || within_module_rw(addr, &mod->init_layout);
 }
 
 static inline bool within_module(unsigned long addr, const struct module *mod)
diff --git a/include/linux/moduleloader.h b/include/linux/moduleloader.h
index 4d0cb9b..3169ac7 100644
--- a/include/linux/moduleloader.h
+++ b/include/linux/moduleloader.h
@@ -25,9 +25,21 @@ unsigned int arch_mod_section_prepend(struct module *mod, unsigned int section);
    sections.  Returns NULL on failure. */
 void *module_alloc(unsigned long size);
 
+#ifdef CONFIG_PAX_KERNEXEC
+void *module_alloc_exec(unsigned long size);
+#else
+#define module_alloc_exec(x) module_alloc(x)
+#endif
+
 /* Free memory returned from module_alloc. */
 void module_memfree(void *module_region);
 
+#ifdef CONFIG_PAX_KERNEXEC
+void module_memfree_exec(void *module_region);
+#else
+#define module_memfree_exec(x) module_memfree((x))
+#endif
+
 /*
  * Apply the given relocation to the (simplified) ELF.  Return -error
  * or 0.
@@ -45,8 +57,10 @@ static inline int apply_relocate(Elf_Shdr *sechdrs,
 				 unsigned int relsec,
 				 struct module *me)
 {
+#ifdef CONFIG_MODULES
 	printk(KERN_ERR "module %s: REL relocation unsupported\n",
 	       module_name(me));
+#endif
 	return -ENOEXEC;
 }
 #endif
@@ -68,8 +82,10 @@ static inline int apply_relocate_add(Elf_Shdr *sechdrs,
 				     unsigned int relsec,
 				     struct module *me)
 {
+#ifdef CONFIG_MODULES
 	printk(KERN_ERR "module %s: REL relocation unsupported\n",
 	       module_name(me));
+#endif
 	return -ENOEXEC;
 }
 #endif
diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
index 52666d9..f10563b 100644
--- a/include/linux/moduleparam.h
+++ b/include/linux/moduleparam.h
@@ -54,7 +54,7 @@ struct kernel_param_ops {
 	int (*get)(char *buffer, const struct kernel_param *kp);
 	/* Optional function to free kp->arg when module unloaded. */
 	void (*free)(void *arg);
-};
+} __do_const;
 
 /*
  * Flags available for kernel_param
@@ -226,15 +226,15 @@ struct kparam_array
 
 /* Obsolete - use module_param_cb() */
 #define module_param_call(name, set, get, arg, perm)			\
-	static const struct kernel_param_ops __param_ops_##name =		\
-		{ .flags = 0, (void *)set, (void *)get };		\
+	static const struct kernel_param_ops __param_ops_##name =	\
+		{ .flags = 0, set, get };				\
 	__module_param_call(MODULE_PARAM_PREFIX,			\
 			    name, &__param_ops_##name, arg,		\
 			    (perm) + sizeof(__check_old_set_param(set))*0, -1, 0)
 
 /* We don't get oldget: it's often a new-style param_get_uint, etc. */
 static inline int
-__check_old_set_param(int (*oldset)(const char *, struct kernel_param *))
+__check_old_set_param(int (*oldset)(const char *, const struct kernel_param *))
 {
 	return 0;
 }
@@ -289,7 +289,7 @@ static inline void kernel_param_unlock(struct module *mod)
  * @len is usually just sizeof(string).
  */
 #define module_param_string(name, string, len, perm)			\
-	static const struct kparam_string __param_string_##name		\
+	static const struct kparam_string __param_string_##name __used	\
 		= { len, string };					\
 	__module_param_call(MODULE_PARAM_PREFIX, name,			\
 			    &param_ops_string,				\
@@ -441,7 +441,7 @@ extern int param_set_bint(const char *val, const struct kernel_param *kp);
  */
 #define module_param_array_named(name, array, type, nump, perm)		\
 	param_check_##type(name, &(array)[0]);				\
-	static const struct kparam_array __param_arr_##name		\
+	static const struct kparam_array __param_arr_##name __used	\
 	= { .max = ARRAY_SIZE(array), .num = nump,                      \
 	    .ops = &param_ops_##type,					\
 	    .elemsize = sizeof(array[0]), .elem = array };		\
diff --git a/include/linux/mount.h b/include/linux/mount.h
index f822c3c..958ca0a 100644
--- a/include/linux/mount.h
+++ b/include/linux/mount.h
@@ -67,7 +67,7 @@ struct vfsmount {
 	struct dentry *mnt_root;	/* root of the mounted tree */
 	struct super_block *mnt_sb;	/* pointer to superblock */
 	int mnt_flags;
-};
+} __randomize_layout;
 
 struct file; /* forward dec */
 struct path;
diff --git a/include/linux/msg.h b/include/linux/msg.h
index f3f302f..a001305 100644
--- a/include/linux/msg.h
+++ b/include/linux/msg.h
@@ -29,7 +29,7 @@ struct msg_queue {
 	struct list_head q_messages;
 	struct list_head q_receivers;
 	struct list_head q_senders;
-};
+} __randomize_layout;
 
 /* Helper routines for sys_msgsnd and sys_msgrcv */
 extern long do_msgsnd(int msqid, long mtype, void __user *mtext,
diff --git a/include/linux/net.h b/include/linux/net.h
index f840d77..f7a95d98 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -195,7 +195,7 @@ struct net_proto_family {
 	int		(*create)(struct net *net, struct socket *sock,
 				  int protocol, int kern);
 	struct module	*owner;
-};
+} __do_const;
 
 struct iovec;
 struct kvec;
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 78181a8..9e0ef8f 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1293,6 +1293,7 @@ struct net_device_ops {
 	void			(*ndo_set_rx_headroom)(struct net_device *dev,
 						       int needed_headroom);
 };
+typedef struct net_device_ops __no_const net_device_ops_no_const;
 
 /**
  * enum net_device_priv_flags - &struct net_device priv_flags
@@ -1623,7 +1624,7 @@ struct net_device {
 	unsigned long		base_addr;
 	int			irq;
 
-	atomic_t		carrier_changes;
+	atomic_unchecked_t	carrier_changes;
 
 	/*
 	 *	Some hardware also needs these fields (state,dev_list,
@@ -1662,9 +1663,9 @@ struct net_device {
 
 	struct net_device_stats	stats;
 
-	atomic_long_t		rx_dropped;
-	atomic_long_t		tx_dropped;
-	atomic_long_t		rx_nohandler;
+	atomic_long_unchecked_t	rx_dropped;
+	atomic_long_unchecked_t	tx_dropped;
+	atomic_long_unchecked_t	rx_nohandler;
 
 #ifdef CONFIG_WIRELESS_EXT
 	const struct iw_handler_def *wireless_handlers;
@@ -4156,7 +4157,7 @@ static inline void netif_keep_dst(struct net_device *dev)
 	dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_XMIT_DST_RELEASE_PERM);
 }
 
-extern struct pernet_operations __net_initdata loopback_net_ops;
+extern struct pernet_operations __net_initconst loopback_net_ops;
 
 /* Logging, debugging and troubleshooting/diagnostic helpers. */
 
diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h
index 9230f9a..065b8f8 100644
--- a/include/linux/netfilter.h
+++ b/include/linux/netfilter.h
@@ -119,7 +119,7 @@ struct nf_sockopt_ops {
 #endif
 	/* Use the module struct to lock set/get code in place */
 	struct module *owner;
-};
+} __do_const;
 
 /* Function to register/unregister hook points. */
 int nf_register_net_hook(struct net *net, const struct nf_hook_ops *ops);
diff --git a/include/linux/netfilter/ipset/ip_set_comment.h b/include/linux/netfilter/ipset/ip_set_comment.h
index 8d02485..a1e1aa5 100644
--- a/include/linux/netfilter/ipset/ip_set_comment.h
+++ b/include/linux/netfilter/ipset/ip_set_comment.h
@@ -58,8 +58,9 @@ ip_set_put_comment(struct sk_buff *skb, struct ip_set_comment *comment)
  * of the set data anymore.
  */
 static inline void
-ip_set_comment_free(struct ip_set_comment *comment)
+ip_set_comment_free(void *_comment)
 {
+	struct ip_set_comment *comment = _comment;
 	struct ip_set_comment_rcu *c;
 
 	c = rcu_dereference_protected(comment->c, 1);
diff --git a/include/linux/netfilter/nfnetlink.h b/include/linux/netfilter/nfnetlink.h
index 1d82dd5..d6b384c 100644
--- a/include/linux/netfilter/nfnetlink.h
+++ b/include/linux/netfilter/nfnetlink.h
@@ -19,7 +19,7 @@ struct nfnl_callback {
 			  const struct nlattr * const cda[]);
 	const struct nla_policy *policy;	/* netlink attribute policy */
 	const u_int16_t attr_count;		/* number of nlattr's */
-};
+} __do_const;
 
 struct nfnetlink_subsystem {
 	const char *name;
diff --git a/include/linux/netfilter/xt_gradm.h b/include/linux/netfilter/xt_gradm.h
new file mode 100644
index 0000000..33f4af8
--- /dev/null
+++ b/include/linux/netfilter/xt_gradm.h
@@ -0,0 +1,9 @@
+#ifndef _LINUX_NETFILTER_XT_GRADM_H
+#define _LINUX_NETFILTER_XT_GRADM_H 1
+
+struct xt_gradm_mtinfo {
+	__u16 flags;
+	__u16 invflags;
+};
+
+#endif
diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index da14ab6..874abff 100644
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -150,19 +150,19 @@ struct netlink_dump_control {
 	void *data;
 	struct module *module;
 	u16 min_dump_alloc;
-};
+} __do_const;
+typedef struct netlink_dump_control __no_const netlink_dump_control_no_const;
 
 extern int __netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
 				const struct nlmsghdr *nlh,
-				struct netlink_dump_control *control);
+				struct netlink_dump_control *control,
+				void *data,
+				struct module *module);
 static inline int netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
 				     const struct nlmsghdr *nlh,
 				     struct netlink_dump_control *control)
 {
-	if (!control->module)
-		control->module = THIS_MODULE;
-
-	return __netlink_dump_start(ssk, skb, nlh, control);
+	return __netlink_dump_start(ssk, skb, nlh, control, control->data, control->module ? : THIS_MODULE);
 }
 
 struct netlink_tap {
diff --git a/include/linux/nls.h b/include/linux/nls.h
index 520681b..2b7fabb 100644
--- a/include/linux/nls.h
+++ b/include/linux/nls.h
@@ -31,7 +31,7 @@ struct nls_table {
 	const unsigned char *charset2upper;
 	struct module *owner;
 	struct nls_table *next;
-};
+} __do_const;
 
 /* this value hold the maximum octet of charset */
 #define NLS_MAX_CHARSET_SIZE 6 /* for UTF-8 */
@@ -46,7 +46,7 @@ enum utf16_endian {
 /* nls_base.c */
 extern int __register_nls(struct nls_table *, struct module *);
 extern int unregister_nls(struct nls_table *);
-extern struct nls_table *load_nls(char *);
+extern struct nls_table *load_nls(const char *);
 extern void unload_nls(struct nls_table *);
 extern struct nls_table *load_nls_default(void);
 #define register_nls(nls) __register_nls((nls), THIS_MODULE)
diff --git a/include/linux/notifier.h b/include/linux/notifier.h
index 4149868..0971cea 100644
--- a/include/linux/notifier.h
+++ b/include/linux/notifier.h
@@ -56,7 +56,8 @@ struct notifier_block {
 	notifier_fn_t notifier_call;
 	struct notifier_block __rcu *next;
 	int priority;
-};
+} __do_const;
+typedef struct notifier_block __no_const notifier_block_no_const;
 
 struct atomic_notifier_head {
 	spinlock_t lock;
diff --git a/include/linux/oprofile.h b/include/linux/oprofile.h
index b2a0f15..4d7da32 100644
--- a/include/linux/oprofile.h
+++ b/include/linux/oprofile.h
@@ -138,9 +138,9 @@ int oprofilefs_create_ulong(struct dentry * root,
 int oprofilefs_create_ro_ulong(struct dentry * root,
 	char const * name, ulong * val);
  
-/** Create a file for read-only access to an atomic_t. */
+/** Create a file for read-only access to an atomic_unchecked_t. */
 int oprofilefs_create_ro_atomic(struct dentry * root,
-	char const * name, atomic_t * val);
+	char const * name, atomic_unchecked_t * val);
  
 /** create a directory */
 struct dentry *oprofilefs_mkdir(struct dentry *parent, char const *name);
diff --git a/include/linux/padata.h b/include/linux/padata.h
index 4386946..f50c615 100644
--- a/include/linux/padata.h
+++ b/include/linux/padata.h
@@ -129,7 +129,7 @@ struct parallel_data {
 	struct padata_serial_queue	__percpu *squeue;
 	atomic_t			reorder_objects;
 	atomic_t			refcnt;
-	atomic_t			seq_nr;
+	atomic_unchecked_t		seq_nr;
 	struct padata_cpumask		cpumask;
 	spinlock_t                      lock ____cacheline_aligned;
 	unsigned int			processed;
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 7e1ab15..9b26fd4 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -215,7 +215,7 @@ static inline struct page *page_cache_alloc_readahead(struct address_space *x)
 				  __GFP_COLD | __GFP_NORETRY | __GFP_NOWARN);
 }
 
-typedef int filler_t(void *, struct page *);
+typedef int filler_t(struct file *, struct page *);
 
 pgoff_t page_cache_next_hole(struct address_space *mapping,
 			     pgoff_t index, unsigned long max_scan);
@@ -359,7 +359,7 @@ extern int read_cache_pages(struct address_space *mapping,
 static inline struct page *read_mapping_page(struct address_space *mapping,
 				pgoff_t index, void *data)
 {
-	filler_t *filler = (filler_t *)mapping->a_ops->readpage;
+	filler_t *filler = mapping->a_ops->readpage;
 	return read_cache_page(mapping, index, filler, data);
 }
 
diff --git a/include/linux/path.h b/include/linux/path.h
index d137218..be0c176 100644
--- a/include/linux/path.h
+++ b/include/linux/path.h
@@ -1,13 +1,15 @@
 #ifndef _LINUX_PATH_H
 #define _LINUX_PATH_H
 
+#include <linux/compiler.h>
+
 struct dentry;
 struct vfsmount;
 
 struct path {
 	struct vfsmount *mnt;
 	struct dentry *dentry;
-};
+} __randomize_layout;
 
 extern void path_get(const struct path *);
 extern void path_put(const struct path *);
diff --git a/include/linux/pci_hotplug.h b/include/linux/pci_hotplug.h
index 8c78950..0d74ed9 100644
--- a/include/linux/pci_hotplug.h
+++ b/include/linux/pci_hotplug.h
@@ -71,7 +71,8 @@ struct hotplug_slot_ops {
 	int (*get_latch_status)		(struct hotplug_slot *slot, u8 *value);
 	int (*get_adapter_status)	(struct hotplug_slot *slot, u8 *value);
 	int (*reset_slot)		(struct hotplug_slot *slot, int probe);
-};
+} __do_const;
+typedef struct hotplug_slot_ops __no_const hotplug_slot_ops_no_const;
 
 /**
  * struct hotplug_slot_info - used to notify the hotplug pci core of the state of the slot
diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index 4bc6daf..6edaab0 100644
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -28,7 +28,7 @@
  * preallocate for this.  Keep PERCPU_DYNAMIC_RESERVE equal to or
  * larger than PERCPU_DYNAMIC_EARLY_SIZE.
  */
-#define PERCPU_DYNAMIC_EARLY_SLOTS	128
+#define PERCPU_DYNAMIC_EARLY_SLOTS	256
 #define PERCPU_DYNAMIC_EARLY_SIZE	(12 << 10)
 
 /*
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index f291275..6936e70 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -477,8 +477,8 @@ struct perf_event {
 
 	enum perf_event_active_state	state;
 	unsigned int			attach_state;
-	local64_t			count;
-	atomic64_t			child_count;
+	local64_t			count; /* PaX: fix it one day */
+	atomic64_unchecked_t		child_count;
 
 	/*
 	 * These are the total time in nanoseconds that the event
@@ -529,8 +529,8 @@ struct perf_event {
 	 * These accumulate total time (in nanoseconds) that children
 	 * events have been enabled and running, respectively.
 	 */
-	atomic64_t			child_total_time_enabled;
-	atomic64_t			child_total_time_running;
+	atomic64_unchecked_t		child_total_time_enabled;
+	atomic64_unchecked_t		child_total_time_running;
 
 	/*
 	 * Protect attach/detach and child_list:
@@ -954,7 +954,7 @@ static inline void perf_event_task_sched_out(struct task_struct *prev,
 
 static inline u64 __perf_event_count(struct perf_event *event)
 {
-	return local64_read(&event->count) + atomic64_read(&event->child_count);
+	return local64_read(&event->count) + atomic64_read_unchecked(&event->child_count);
 }
 
 extern void perf_event_mmap(struct vm_area_struct *vma);
@@ -987,7 +987,7 @@ static inline int perf_callchain_store(struct perf_callchain_entry *entry, u64 i
 	}
 }
 
-extern int sysctl_perf_event_paranoid;
+extern int sysctl_perf_event_legitimately_concerned;
 extern int sysctl_perf_event_mlock;
 extern int sysctl_perf_event_sample_rate;
 extern int sysctl_perf_cpu_time_max_percent;
@@ -1002,19 +1002,24 @@ extern int perf_cpu_time_max_percent_handler(struct ctl_table *table, int write,
 		loff_t *ppos);
 
 
+static inline bool perf_paranoid_any(void)
+{
+	return sysctl_perf_event_legitimately_concerned > 2;
+}
+
 static inline bool perf_paranoid_tracepoint_raw(void)
 {
-	return sysctl_perf_event_paranoid > -1;
+	return sysctl_perf_event_legitimately_concerned > -1;
 }
 
 static inline bool perf_paranoid_cpu(void)
 {
-	return sysctl_perf_event_paranoid > 0;
+	return sysctl_perf_event_legitimately_concerned > 0;
 }
 
 static inline bool perf_paranoid_kernel(void)
 {
-	return sysctl_perf_event_paranoid > 1;
+	return sysctl_perf_event_legitimately_concerned > 1;
 }
 
 extern void perf_event_init(void);
@@ -1171,7 +1176,7 @@ struct perf_pmu_events_attr {
 	struct device_attribute attr;
 	u64 id;
 	const char *event_str;
-};
+} __do_const;
 
 ssize_t perf_event_sysfs_show(struct device *dev, struct device_attribute *attr,
 			      char *page);
diff --git a/include/linux/pid.h b/include/linux/pid.h
index 23705a5..af2bfb4 100644
--- a/include/linux/pid.h
+++ b/include/linux/pid.h
@@ -169,8 +169,8 @@ static inline pid_t pid_nr(struct pid *pid)
 	return nr;
 }
 
-pid_t pid_nr_ns(struct pid *pid, struct pid_namespace *ns);
-pid_t pid_vnr(struct pid *pid);
+pid_t pid_nr_ns(const struct pid *pid, const struct pid_namespace *ns);
+pid_t pid_vnr(const struct pid *pid);
 
 #define do_each_pid_task(pid, type, task)				\
 	do {								\
diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h
index 918b117..7af374b7 100644
--- a/include/linux/pid_namespace.h
+++ b/include/linux/pid_namespace.h
@@ -45,7 +45,7 @@ struct pid_namespace {
 	int hide_pid;
 	int reboot;	/* group exit code if this pidns was rebooted */
 	struct ns_common ns;
-};
+} __randomize_layout;
 
 extern struct pid_namespace init_pid_ns;
 
diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h
index 24f5470..deb6089 100644
--- a/include/linux/pipe_fs_i.h
+++ b/include/linux/pipe_fs_i.h
@@ -48,10 +48,10 @@ struct pipe_inode_info {
 	struct mutex mutex;
 	wait_queue_head_t wait;
 	unsigned int nrbufs, curbuf, buffers;
-	unsigned int readers;
-	unsigned int writers;
-	unsigned int files;
-	unsigned int waiting_writers;
+	atomic_t readers;
+	atomic_t writers;
+	atomic_t files;
+	atomic_t waiting_writers;
 	unsigned int r_counter;
 	unsigned int w_counter;
 	struct page *tmp_page;
diff --git a/include/linux/pm.h b/include/linux/pm.h
index 6a5d654..1051ebc 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -631,6 +631,7 @@ struct dev_pm_domain {
 	void (*sync)(struct device *dev);
 	void (*dismiss)(struct device *dev);
 };
+typedef struct dev_pm_domain __no_const dev_pm_domain_no_const;
 
 /*
  * The PM_EVENT_ messages are also used by drivers implementing the legacy
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 49cd889..70d53da5 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -37,7 +37,7 @@ struct gpd_dev_ops {
 	int (*save_state)(struct device *dev);
 	int (*restore_state)(struct device *dev);
 	bool (*active_wakeup)(struct device *dev);
-};
+} __no_const;
 
 struct genpd_power_state {
 	s64 power_off_latency_ns;
diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
index 7af093d..122df16 100644
--- a/include/linux/pm_runtime.h
+++ b/include/linux/pm_runtime.h
@@ -111,7 +111,7 @@ static inline bool pm_runtime_callbacks_present(struct device *dev)
 
 static inline void pm_runtime_mark_last_busy(struct device *dev)
 {
-	ACCESS_ONCE(dev->power.last_busy) = jiffies;
+	ACCESS_ONCE_RW(dev->power.last_busy) = jiffies;
 }
 
 static inline bool pm_runtime_is_irq_safe(struct device *dev)
diff --git a/include/linux/pnp.h b/include/linux/pnp.h
index 5df733b..d55f252 100644
--- a/include/linux/pnp.h
+++ b/include/linux/pnp.h
@@ -298,7 +298,7 @@ static inline void pnp_set_drvdata(struct pnp_dev *pdev, void *data)
 struct pnp_fixup {
 	char id[7];
 	void (*quirk_function) (struct pnp_dev * dev);	/* fixup function */
-};
+} __do_const;
 
 /* config parameters */
 #define PNP_CONFIG_NORMAL	0x0001
diff --git a/include/linux/poison.h b/include/linux/poison.h
index 51334ed..7fda393 100644
--- a/include/linux/poison.h
+++ b/include/linux/poison.h
@@ -19,8 +19,8 @@
  * under normal circumstances, used to verify that nobody uses
  * non-initialized list entries.
  */
-#define LIST_POISON1  ((void *) 0x100 + POISON_POINTER_DELTA)
-#define LIST_POISON2  ((void *) 0x200 + POISON_POINTER_DELTA)
+#define LIST_POISON1  ((void *) (long)0xFFFFFF02)
+#define LIST_POISON2  ((void *) (long)0xFFFFFF04)
 
 /********** include/linux/timer.h **********/
 /*
diff --git a/include/linux/power/smartreflex.h b/include/linux/power/smartreflex.h
index d8b187c3..9a9257a 100644
--- a/include/linux/power/smartreflex.h
+++ b/include/linux/power/smartreflex.h
@@ -238,7 +238,7 @@ struct omap_sr_class_data {
 	int (*notify)(struct omap_sr *sr, u32 status);
 	u8 notify_flags;
 	u8 class_type;
-};
+} __do_const;
 
 /**
  * struct omap_sr_nvalue_table	- Smartreflex n-target value info
diff --git a/include/linux/ppp-comp.h b/include/linux/ppp-comp.h
index 4ea1d37..80f4b33 100644
--- a/include/linux/ppp-comp.h
+++ b/include/linux/ppp-comp.h
@@ -84,7 +84,7 @@ struct compressor {
 	struct module *owner;
 	/* Extra skb space needed by the compressor algorithm */
 	unsigned int comp_extra;
-};
+} __do_const;
 
 /*
  * The return value from decompress routine is the length of the
diff --git a/include/linux/preempt.h b/include/linux/preempt.h
index 75e4e30..fcfde15 100644
--- a/include/linux/preempt.h
+++ b/include/linux/preempt.h
@@ -134,11 +134,16 @@ extern void preempt_count_sub(int val);
 #define preempt_count_dec_and_test() __preempt_count_dec_and_test()
 #endif
 
+#define raw_preempt_count_add(val)	__preempt_count_add(val)
+#define raw_preempt_count_sub(val)	__preempt_count_sub(val)
+
 #define __preempt_count_inc() __preempt_count_add(1)
 #define __preempt_count_dec() __preempt_count_sub(1)
 
 #define preempt_count_inc() preempt_count_add(1)
+#define raw_preempt_count_inc() raw_preempt_count_add(1)
 #define preempt_count_dec() preempt_count_sub(1)
+#define raw_preempt_count_dec() raw_preempt_count_sub(1)
 
 #ifdef CONFIG_PREEMPT_COUNT
 
@@ -148,6 +153,12 @@ do { \
 	barrier(); \
 } while (0)
 
+#define raw_preempt_disable() \
+do { \
+	raw_preempt_count_inc(); \
+	barrier(); \
+} while (0)
+
 #define sched_preempt_enable_no_resched() \
 do { \
 	barrier(); \
@@ -156,6 +167,12 @@ do { \
 
 #define preempt_enable_no_resched() sched_preempt_enable_no_resched()
 
+#define raw_preempt_enable_no_resched() \
+do { \
+	barrier(); \
+	raw_preempt_count_dec(); \
+} while (0)
+
 #define preemptible()	(preempt_count() == 0 && !irqs_disabled())
 
 #ifdef CONFIG_PREEMPT
@@ -216,8 +233,10 @@ do { \
  * region.
  */
 #define preempt_disable()			barrier()
+#define raw_preempt_disable()			barrier()
 #define sched_preempt_enable_no_resched()	barrier()
 #define preempt_enable_no_resched()		barrier()
+#define raw_preempt_enable_no_resched()		barrier()
 #define preempt_enable()			barrier()
 #define preempt_check_resched()			do { } while (0)
 
@@ -232,11 +251,13 @@ do { \
 /*
  * Modules have no business playing preemption tricks.
  */
+#ifndef CONFIG_PAX_KERNEXEC
 #undef sched_preempt_enable_no_resched
 #undef preempt_enable_no_resched
 #undef preempt_enable_no_resched_notrace
 #undef preempt_check_resched
 #endif
+#endif
 
 #define preempt_set_need_resched() \
 do { \
diff --git a/include/linux/printk.h b/include/linux/printk.h
index 9ccbdf2..9987ac2 100644
--- a/include/linux/printk.h
+++ b/include/linux/printk.h
@@ -43,7 +43,7 @@ static inline const char *printk_skip_level(const char *buffer)
 #define CONSOLE_LOGLEVEL_DEBUG	10 /* issue debug messages */
 #define CONSOLE_LOGLEVEL_MOTORMOUTH 15	/* You can't shut this one up */
 
-extern int console_printk[];
+extern int console_printk[4];
 
 #define console_loglevel (console_printk[0])
 #define default_message_loglevel (console_printk[1])
@@ -123,6 +123,7 @@ void early_printk(const char *s, ...) { }
 #endif
 
 typedef __printf(1, 0) int (*printk_func_t)(const char *fmt, va_list args);
+extern int kptr_restrict;
 
 #ifdef CONFIG_PRINTK
 asmlinkage __printf(5, 0)
@@ -158,7 +159,6 @@ extern bool printk_timed_ratelimit(unsigned long *caller_jiffies,
 
 extern int printk_delay_msec;
 extern int dmesg_restrict;
-extern int kptr_restrict;
 
 extern void wake_up_klogd(void);
 
diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
index b97bf2e..f14c92d4 100644
--- a/include/linux/proc_fs.h
+++ b/include/linux/proc_fs.h
@@ -17,8 +17,11 @@ extern void proc_flush_task(struct task_struct *);
 extern struct proc_dir_entry *proc_symlink(const char *,
 		struct proc_dir_entry *, const char *);
 extern struct proc_dir_entry *proc_mkdir(const char *, struct proc_dir_entry *);
+extern struct proc_dir_entry *proc_mkdir_restrict(const char *, struct proc_dir_entry *);
 extern struct proc_dir_entry *proc_mkdir_data(const char *, umode_t,
 					      struct proc_dir_entry *, void *);
+extern struct proc_dir_entry *proc_mkdir_data_restrict(const char *, umode_t,
+					      struct proc_dir_entry *, void *);
 extern struct proc_dir_entry *proc_mkdir_mode(const char *, umode_t,
 					      struct proc_dir_entry *);
  
@@ -34,6 +37,19 @@ static inline struct proc_dir_entry *proc_create(
 	return proc_create_data(name, mode, parent, proc_fops, NULL);
 }
 
+static inline struct proc_dir_entry *proc_create_grsec(const char *name, umode_t mode,
+	struct proc_dir_entry *parent, const struct file_operations *proc_fops)
+{
+#ifdef CONFIG_GRKERNSEC_PROC_USER
+	return proc_create_data(name, S_IRUSR, parent, proc_fops, NULL);
+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+	return proc_create_data(name, S_IRUSR | S_IRGRP, parent, proc_fops, NULL);
+#else
+	return proc_create_data(name, mode, parent, proc_fops, NULL);
+#endif
+}
+
+
 extern void proc_set_size(struct proc_dir_entry *, loff_t);
 extern void proc_set_user(struct proc_dir_entry *, kuid_t, kgid_t);
 extern void *PDE_DATA(const struct inode *);
@@ -56,8 +72,12 @@ static inline struct proc_dir_entry *proc_symlink(const char *name,
 		struct proc_dir_entry *parent,const char *dest) { return NULL;}
 static inline struct proc_dir_entry *proc_mkdir(const char *name,
 	struct proc_dir_entry *parent) {return NULL;}
+static inline struct proc_dir_entry *proc_mkdir_restrict(const char *name,
+	struct proc_dir_entry *parent) { return NULL; }
 static inline struct proc_dir_entry *proc_mkdir_data(const char *name,
 	umode_t mode, struct proc_dir_entry *parent, void *data) { return NULL; }
+static inline  struct proc_dir_entry *proc_mkdir_data_restrict(const char *name,
+	umode_t mode, struct proc_dir_entry *parent, void *data) { return NULL; }
 static inline struct proc_dir_entry *proc_mkdir_mode(const char *name,
 	umode_t mode, struct proc_dir_entry *parent) { return NULL; }
 #define proc_create(name, mode, parent, proc_fops) ({NULL;})
@@ -79,7 +99,7 @@ struct net;
 static inline struct proc_dir_entry *proc_net_mkdir(
 	struct net *net, const char *name, struct proc_dir_entry *parent)
 {
-	return proc_mkdir_data(name, 0, parent, net);
+	return proc_mkdir_data_restrict(name, 0, parent, net);
 }
 
 #endif /* _LINUX_PROC_FS_H */
diff --git a/include/linux/proc_ns.h b/include/linux/proc_ns.h
index de0e771..9e746e9 100644
--- a/include/linux/proc_ns.h
+++ b/include/linux/proc_ns.h
@@ -18,7 +18,7 @@ struct proc_ns_operations {
 	struct ns_common *(*get)(struct task_struct *task);
 	void (*put)(struct ns_common *ns);
 	int (*install)(struct nsproxy *nsproxy, struct ns_common *ns);
-};
+} __do_const __randomize_layout;
 
 extern const struct proc_ns_operations netns_operations;
 extern const struct proc_ns_operations utsns_operations;
diff --git a/include/linux/psci.h b/include/linux/psci.h
index 393efe2..340fc1d 100644
--- a/include/linux/psci.h
+++ b/include/linux/psci.h
@@ -35,7 +35,7 @@ struct psci_operations {
 	int (*affinity_info)(unsigned long target_affinity,
 			unsigned long lowest_affinity_level);
 	int (*migrate_info_type)(void);
-};
+} __no_const;
 
 extern struct psci_operations psci_ops;
 
diff --git a/include/linux/quota.h b/include/linux/quota.h
index 9dfb6bc..0aa55da 100644
--- a/include/linux/quota.h
+++ b/include/linux/quota.h
@@ -76,7 +76,7 @@ struct kqid {			/* Type in which we store the quota identifier */
 
 extern bool qid_eq(struct kqid left, struct kqid right);
 extern bool qid_lt(struct kqid left, struct kqid right);
-extern qid_t from_kqid(struct user_namespace *to, struct kqid qid);
+extern qid_t from_kqid(struct user_namespace *to, struct kqid qid) __intentional_overflow(-1);
 extern qid_t from_kqid_munged(struct user_namespace *to, struct kqid qid);
 extern bool qid_valid(struct kqid qid);
 
diff --git a/include/linux/random.h b/include/linux/random.h
index 9c29122..f94151b 100644
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -18,9 +18,19 @@ struct random_ready_callback {
 };
 
 extern void add_device_randomness(const void *, unsigned int);
+
+#if defined(LATENT_ENTROPY_PLUGIN) && !defined(__CHECKER__)
+static inline void add_latent_entropy(void)
+{
+	add_device_randomness((const void *)&latent_entropy, sizeof(latent_entropy));
+}
+#else
+static inline void add_latent_entropy(void) {}
+#endif
+
 extern void add_input_randomness(unsigned int type, unsigned int code,
-				 unsigned int value);
-extern void add_interrupt_randomness(int irq, int irq_flags);
+				 unsigned int value) __latent_entropy;
+extern void add_interrupt_randomness(int irq, int irq_flags) __latent_entropy;
 
 extern void get_random_bytes(void *buf, int nbytes);
 extern int add_random_ready_callback(struct random_ready_callback *rdy);
@@ -53,6 +63,11 @@ void prandom_seed_full_state(struct rnd_state __percpu *pcpu_state);
 #define prandom_init_once(pcpu_state)			\
 	DO_ONCE(prandom_seed_full_state, (pcpu_state))
 
+static inline unsigned long __intentional_overflow(-1) pax_get_random_long(void)
+{
+	return prandom_u32() + (sizeof(long) > 4 ? (unsigned long)prandom_u32() << 32 : 0);
+}
+
 /**
  * prandom_u32_max - returns a pseudo-random number in interval [0, ep_ro)
  * @ep_ro: right open interval endpoint
@@ -65,7 +80,7 @@ void prandom_seed_full_state(struct rnd_state __percpu *pcpu_state);
  *
  * Returns: pseudo-random number in interval [0, ep_ro)
  */
-static inline u32 prandom_u32_max(u32 ep_ro)
+static inline u32 __intentional_overflow(-1) prandom_u32_max(u32 ep_ro)
 {
 	return (u32)(((u64) prandom_u32() * ep_ro) >> 32);
 }
diff --git a/include/linux/rbtree_augmented.h b/include/linux/rbtree_augmented.h
index 14d7b83..a1edf56 100644
--- a/include/linux/rbtree_augmented.h
+++ b/include/linux/rbtree_augmented.h
@@ -90,7 +90,9 @@ rbname ## _rotate(struct rb_node *rb_old, struct rb_node *rb_new)	\
 	old->rbaugmented = rbcompute(old);				\
 }									\
 rbstatic const struct rb_augment_callbacks rbname = {			\
-	rbname ## _propagate, rbname ## _copy, rbname ## _rotate	\
+	.propagate = rbname ## _propagate,				\
+	.copy = rbname ## _copy,					\
+	.rotate = rbname ## _rotate					\
 };
 
 
diff --git a/include/linux/rculist.h b/include/linux/rculist.h
index 17d4f84..878f3cf 100644
--- a/include/linux/rculist.h
+++ b/include/linux/rculist.h
@@ -59,6 +59,9 @@ void __list_add_rcu(struct list_head *new,
 		    struct list_head *prev, struct list_head *next);
 #endif
 
+void __pax_list_add_rcu(struct list_head *new,
+			struct list_head *prev, struct list_head *next);
+
 /**
  * list_add_rcu - add a new entry to rcu-protected list
  * @new: new entry to be added
@@ -80,6 +83,11 @@ static inline void list_add_rcu(struct list_head *new, struct list_head *head)
 	__list_add_rcu(new, head, head->next);
 }
 
+static inline void pax_list_add_rcu(struct list_head *new, struct list_head *head)
+{
+	__pax_list_add_rcu(new, head, head->next);
+}
+
 /**
  * list_add_tail_rcu - add a new entry to rcu-protected list
  * @new: new entry to be added
@@ -102,6 +110,12 @@ static inline void list_add_tail_rcu(struct list_head *new,
 	__list_add_rcu(new, head->prev, head);
 }
 
+static inline void pax_list_add_tail_rcu(struct list_head *new,
+					struct list_head *head)
+{
+	__pax_list_add_rcu(new, head->prev, head);
+}
+
 /**
  * list_del_rcu - deletes entry from list without re-initialization
  * @entry: the element to delete from the list.
@@ -132,6 +146,8 @@ static inline void list_del_rcu(struct list_head *entry)
 	entry->prev = LIST_POISON2;
 }
 
+extern void pax_list_del_rcu(struct list_head *entry);
+
 /**
  * hlist_del_init_rcu - deletes entry from hash list with re-initialization
  * @n: the element to delete from the hash list.
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 2657aff..f1259b4 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -863,6 +863,7 @@ static inline void rcu_preempt_sleep_check(void)
  * read-side critical sections may be preempted and they may also block, but
  * only when acquiring spinlocks that are subject to priority inheritance.
  */
+static inline void rcu_read_lock(void) __acquires(RCU);
 static inline void rcu_read_lock(void)
 {
 	__rcu_read_lock();
@@ -917,6 +918,7 @@ static inline void rcu_read_lock(void)
  *
  * See rcu_read_lock() for more information.
  */
+static inline void rcu_read_unlock(void) __releases(RCU);
 static inline void rcu_read_unlock(void)
 {
 	RCU_LOCKDEP_WARN(!rcu_is_watching(),
@@ -943,6 +945,7 @@ static inline void rcu_read_unlock(void)
  * rcu_read_unlock_bh() from one task if the matching rcu_read_lock_bh()
  * was invoked from some other task.
  */
+static inline void rcu_read_lock_bh(void) __acquires(RCU_BH);
 static inline void rcu_read_lock_bh(void)
 {
 	local_bh_disable();
@@ -957,6 +960,7 @@ static inline void rcu_read_lock_bh(void)
  *
  * See rcu_read_lock_bh() for more information.
  */
+static inline void rcu_read_unlock_bh(void) __releases(RCU_BH);
 static inline void rcu_read_unlock_bh(void)
 {
 	RCU_LOCKDEP_WARN(!rcu_is_watching(),
@@ -979,6 +983,7 @@ static inline void rcu_read_unlock_bh(void)
  * rcu_read_unlock_sched() from process context if the matching
  * rcu_read_lock_sched() was invoked from an NMI handler.
  */
+static inline void rcu_read_lock_sched(void) __acquires(RCU_SCHED);
 static inline void rcu_read_lock_sched(void)
 {
 	preempt_disable();
@@ -989,6 +994,7 @@ static inline void rcu_read_lock_sched(void)
 }
 
 /* Used by lockdep and tracing: cannot be traced, cannot call lockdep. */
+static inline notrace void rcu_read_lock_sched_notrace(void) __acquires(RCU_SCHED);
 static inline notrace void rcu_read_lock_sched_notrace(void)
 {
 	preempt_disable_notrace();
@@ -1000,6 +1006,7 @@ static inline notrace void rcu_read_lock_sched_notrace(void)
  *
  * See rcu_read_lock_sched for more information.
  */
+static inline void rcu_read_unlock_sched(void) __releases(RCU_SCHED);
 static inline void rcu_read_unlock_sched(void)
 {
 	RCU_LOCKDEP_WARN(!rcu_is_watching(),
@@ -1010,6 +1017,7 @@ static inline void rcu_read_unlock_sched(void)
 }
 
 /* Used by lockdep and tracing: cannot be traced, cannot call lockdep. */
+static inline notrace void rcu_read_unlock_sched_notrace(void) __releases(RCU_SCHED);
 static inline notrace void rcu_read_unlock_sched_notrace(void)
 {
 	__release(RCU_SCHED);
diff --git a/include/linux/reboot.h b/include/linux/reboot.h
index a7ff409..03e2fa8 100644
--- a/include/linux/reboot.h
+++ b/include/linux/reboot.h
@@ -47,9 +47,9 @@ extern void do_kernel_restart(char *cmd);
  */
 
 extern void migrate_to_reboot_cpu(void);
-extern void machine_restart(char *cmd);
-extern void machine_halt(void);
-extern void machine_power_off(void);
+extern void machine_restart(char *cmd) __noreturn;
+extern void machine_halt(void) __noreturn;
+extern void machine_power_off(void) __noreturn;
 
 extern void machine_shutdown(void);
 struct pt_regs;
@@ -60,9 +60,9 @@ extern void machine_crash_shutdown(struct pt_regs *);
  */
 
 extern void kernel_restart_prepare(char *cmd);
-extern void kernel_restart(char *cmd);
-extern void kernel_halt(void);
-extern void kernel_power_off(void);
+extern void kernel_restart(char *cmd) __noreturn;
+extern void kernel_halt(void) __noreturn;
+extern void kernel_power_off(void) __noreturn;
 
 extern int C_A_D; /* for sysctl */
 void ctrl_alt_del(void);
@@ -77,7 +77,7 @@ extern void orderly_reboot(void);
  * Emergency restart, callable from an interrupt handler.
  */
 
-extern void emergency_restart(void);
+extern void emergency_restart(void) __noreturn;
 #include <asm/emergency-restart.h>
 
 #endif /* _LINUX_REBOOT_H */
diff --git a/include/linux/regset.h b/include/linux/regset.h
index 8e0c9fe..ac4d221 100644
--- a/include/linux/regset.h
+++ b/include/linux/regset.h
@@ -161,7 +161,8 @@ struct user_regset {
 	unsigned int 			align;
 	unsigned int 			bias;
 	unsigned int 			core_note_type;
-};
+} __do_const;
+typedef struct user_regset __no_const user_regset_no_const;
 
 /**
  * struct user_regset_view - available regsets
diff --git a/include/linux/relay.h b/include/linux/relay.h
index d7c8359..818daf5 100644
--- a/include/linux/relay.h
+++ b/include/linux/relay.h
@@ -157,7 +157,7 @@ struct rchan_callbacks
 	 * The callback should return 0 if successful, negative if not.
 	 */
 	int (*remove_buf_file)(struct dentry *dentry);
-};
+} __no_const;
 
 /*
  * CONFIG_RELAY kernel API, kernel/relay.c
diff --git a/include/linux/rio.h b/include/linux/rio.h
index aa23238..f6f8109 100644
--- a/include/linux/rio.h
+++ b/include/linux/rio.h
@@ -432,7 +432,7 @@ struct rio_ops {
 	int (*map_outb)(struct rio_mport *mport, u16 destid, u64 rstart,
 			u32 size, u32 flags, dma_addr_t *laddr);
 	void (*unmap_outb)(struct rio_mport *mport, u16 destid, u64 rstart);
-};
+} __no_const;
 
 #define RIO_RESOURCE_MEM	0x00000100
 #define RIO_RESOURCE_DOORBELL	0x00000200
diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index 49eb4f8..95a4b70 100644
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -139,8 +139,8 @@ static inline void anon_vma_unlock_read(struct anon_vma *anon_vma)
 void anon_vma_init(void);	/* create anon_vma_cachep */
 int  anon_vma_prepare(struct vm_area_struct *);
 void unlink_anon_vmas(struct vm_area_struct *);
-int anon_vma_clone(struct vm_area_struct *, struct vm_area_struct *);
-int anon_vma_fork(struct vm_area_struct *, struct vm_area_struct *);
+int anon_vma_clone(struct vm_area_struct *, const struct vm_area_struct *);
+int anon_vma_fork(struct vm_area_struct *, const struct vm_area_struct *);
 
 static inline void anon_vma_merge(struct vm_area_struct *vma,
 				  struct vm_area_struct *next)
diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h
index 556ec1e..38c19c9 100644
--- a/include/linux/scatterlist.h
+++ b/include/linux/scatterlist.h
@@ -1,6 +1,7 @@
 #ifndef _LINUX_SCATTERLIST_H
 #define _LINUX_SCATTERLIST_H
 
+#include <linux/sched.h>
 #include <linux/string.h>
 #include <linux/types.h>
 #include <linux/bug.h>
@@ -136,10 +137,17 @@ static inline struct page *sg_page(struct scatterlist *sg)
 static inline void sg_set_buf(struct scatterlist *sg, const void *buf,
 			      unsigned int buflen)
 {
+	const void *realbuf = buf;
+
+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
+	if (object_starts_on_stack(buf))
+		realbuf = buf - current->stack + current->lowmem_stack;
+#endif
+
 #ifdef CONFIG_DEBUG_SG
-	BUG_ON(!virt_addr_valid(buf));
+	BUG_ON(!virt_addr_valid(realbuf));
 #endif
-	sg_set_page(sg, virt_to_page(buf), buflen, offset_in_page(buf));
+	sg_set_page(sg, virt_to_page(realbuf), buflen, offset_in_page(realbuf));
 }
 
 /*
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 52c4847..3a5c90b 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -7,7 +7,7 @@
 
 
 struct sched_param {
-	int sched_priority;
+	unsigned int sched_priority;
 };
 
 #include <asm/param.h>	/* for HZ */
@@ -135,6 +135,7 @@ struct perf_event_context;
 struct blk_plug;
 struct filename;
 struct nameidata;
+struct linux_binprm;
 
 #define VMACACHE_BITS 2
 #define VMACACHE_SIZE (1U << VMACACHE_BITS)
@@ -441,6 +442,19 @@ struct nsproxy;
 struct user_namespace;
 
 #ifdef CONFIG_MMU
+
+#ifdef CONFIG_GRKERNSEC_RAND_THREADSTACK
+extern unsigned long gr_rand_threadstack_offset(const struct mm_struct *mm, const struct file *filp, unsigned long flags);
+#else
+static inline unsigned long gr_rand_threadstack_offset(const struct mm_struct *mm, const struct file *filp, unsigned long flags)
+{
+	return 0;
+}
+#endif
+
+extern bool check_heap_stack_gap(const struct vm_area_struct *vma, unsigned long addr, unsigned long len, unsigned long offset);
+extern unsigned long skip_heap_stack_gap(const struct vm_area_struct *vma, unsigned long len, unsigned long offset);
+
 extern void arch_pick_mmap_layout(struct mm_struct *mm);
 extern unsigned long
 arch_get_unmapped_area(struct file *, unsigned long, unsigned long,
@@ -777,6 +791,17 @@ struct signal_struct {
 #ifdef CONFIG_TASKSTATS
 	struct taskstats *stats;
 #endif
+
+#ifdef CONFIG_GRKERNSEC
+	u32 curr_ip;
+	u32 saved_ip;
+	u32 gr_saddr;
+	u32 gr_daddr;
+	u16 gr_sport;
+	u16 gr_dport;
+	u8 used_accept:1;
+#endif
+
 #ifdef CONFIG_AUDIT
 	unsigned audit_tty;
 	struct tty_audit_buf *tty_audit_buf;
@@ -790,7 +815,7 @@ struct signal_struct {
 	struct mutex cred_guard_mutex;	/* guard against foreign influences on
 					 * credential calculations
 					 * (notably. ptrace) */
-};
+} __randomize_layout;
 
 /*
  * Bits in flags field of signal_struct.
@@ -845,6 +870,14 @@ struct user_struct {
 	struct key *session_keyring;	/* UID's default session keyring */
 #endif
 
+#ifdef CONFIG_GRKERNSEC_KERN_LOCKOUT
+	unsigned char kernel_banned;
+#endif
+#ifdef CONFIG_GRKERNSEC_BRUTE
+	unsigned char sugid_banned;
+	unsigned long sugid_ban_expires;
+#endif
+
 	/* Hash table maintenance information */
 	struct hlist_node uidhash_node;
 	kuid_t uid;
@@ -852,7 +885,7 @@ struct user_struct {
 #if defined(CONFIG_PERF_EVENTS) || defined(CONFIG_BPF_SYSCALL)
 	atomic_long_t locked_vm;
 #endif
-};
+} __randomize_layout;
 
 extern int uids_sysfs_init(void);
 
@@ -1394,6 +1427,9 @@ struct tlbflush_unmap_batch {
 struct task_struct {
 	volatile long state;	/* -1 unrunnable, 0 runnable, >0 stopped */
 	void *stack;
+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
+	void *lowmem_stack;
+#endif
 	atomic_t usage;
 	unsigned int flags;	/* per process flags, defined below */
 	unsigned int ptrace;
@@ -1529,8 +1565,8 @@ struct task_struct {
 	struct list_head thread_node;
 
 	struct completion *vfork_done;		/* for vfork() */
-	int __user *set_child_tid;		/* CLONE_CHILD_SETTID */
-	int __user *clear_child_tid;		/* CLONE_CHILD_CLEARTID */
+	pid_t __user *set_child_tid;		/* CLONE_CHILD_SETTID */
+	pid_t __user *clear_child_tid;		/* CLONE_CHILD_CLEARTID */
 
 	cputime_t utime, stime, utimescaled, stimescaled;
 	cputime_t gtime;
@@ -1560,11 +1596,6 @@ struct task_struct {
 	struct task_cputime cputime_expires;
 	struct list_head cpu_timers[3];
 
-/* process credentials */
-	const struct cred __rcu *real_cred; /* objective and real subjective task
-					 * credentials (COW) */
-	const struct cred __rcu *cred;	/* effective (overridable) subjective task
-					 * credentials (COW) */
 	char comm[TASK_COMM_LEN]; /* executable name excluding path
 				     - access with [gs]et_task_comm (which lock
 				       it with task_lock())
@@ -1580,6 +1611,8 @@ struct task_struct {
 /* hung task detection */
 	unsigned long last_switch_count;
 #endif
+/* CPU-specific state of this task */
+	struct thread_struct thread;
 /* filesystem information */
 	struct fs_struct *fs;
 /* open file information */
@@ -1657,6 +1690,10 @@ struct task_struct {
 	unsigned int in_ubsan;
 #endif
 
+/* process credentials */
+	const struct cred __rcu *real_cred; /* objective and real subjective task
+					 * credentials (COW) */
+
 /* journalling filesystem info */
 	void *journal_info;
 
@@ -1695,6 +1732,10 @@ struct task_struct {
 	/* cg_list protected by css_set_lock and tsk->alloc_lock */
 	struct list_head cg_list;
 #endif
+
+	const struct cred __rcu *cred;	/* effective (overridable) subjective task
+					 * credentials (COW) */
+
 #ifdef CONFIG_FUTEX
 	struct robust_list_head __user *robust_list;
 #ifdef CONFIG_COMPAT
@@ -1810,7 +1851,7 @@ struct task_struct {
 	 * Number of functions that haven't been traced
 	 * because of depth overrun.
 	 */
-	atomic_t trace_overrun;
+	atomic_unchecked_t trace_overrun;
 	/* Pause for the tracing */
 	atomic_t tracing_graph_pause;
 #endif
@@ -1852,22 +1893,89 @@ struct task_struct {
 #ifdef CONFIG_MMU
 	struct task_struct *oom_reaper_list;
 #endif
-/* CPU-specific state of this task */
-	struct thread_struct thread;
-/*
- * WARNING: on x86, 'thread_struct' contains a variable-sized
- * structure.  It *MUST* be at the end of 'task_struct'.
- *
- * Do not put anything below here!
- */
-};
+
+#ifdef CONFIG_GRKERNSEC
+	/* grsecurity */
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	u64 exec_id;
+#endif
+#ifdef CONFIG_GRKERNSEC_SETXID
+	const struct cred *delayed_cred;
+#endif
+	struct dentry *gr_chroot_dentry;
+	struct acl_subject_label *acl;
+	struct acl_subject_label *tmpacl;
+	struct acl_role_label *role;
+	struct file *exec_file;
+	unsigned long brute_expires;
+	u16 acl_role_id;
+	u8 inherited;
+	/* is this the task that authenticated to the special role */
+	u8 acl_sp_role;
+	u8 is_writable;
+	u8 brute;
+	u8 gr_is_chrooted;
+#endif
+
+/* thread_info moved to task_struct */
+#ifdef CONFIG_X86
+	struct thread_info tinfo;
+#endif
+} __randomize_layout;
 
 #ifdef CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT
-extern int arch_task_struct_size __read_mostly;
+extern size_t arch_task_struct_size __read_mostly;
 #else
 # define arch_task_struct_size (sizeof(struct task_struct))
 #endif
 
+#define MF_PAX_PAGEEXEC		0x01000000	/* Paging based non-executable pages */
+#define MF_PAX_EMUTRAMP		0x02000000	/* Emulate trampolines */
+#define MF_PAX_MPROTECT		0x04000000	/* Restrict mprotect() */
+#define MF_PAX_RANDMMAP		0x08000000	/* Randomize mmap() base */
+/*#define MF_PAX_RANDEXEC		0x10000000*/	/* Randomize ET_EXEC base */
+#define MF_PAX_SEGMEXEC		0x20000000	/* Segmentation based non-executable pages */
+
+#ifdef CONFIG_PAX_SOFTMODE
+extern int pax_softmode;
+#endif
+
+extern int pax_check_flags(unsigned long *);
+#define PAX_PARSE_FLAGS_FALLBACK	(~0UL)
+
+/* if tsk != current then task_lock must be held on it */
+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
+static inline unsigned long pax_get_flags(struct task_struct *tsk)
+{
+	if (likely(tsk->mm))
+		return tsk->mm->pax_flags;
+	else
+		return 0UL;
+}
+
+/* if tsk != current then task_lock must be held on it */
+static inline long pax_set_flags(struct task_struct *tsk, unsigned long flags)
+{
+	if (likely(tsk->mm)) {
+		tsk->mm->pax_flags = flags;
+		return 0;
+	}
+	return -EINVAL;
+}
+#endif
+
+#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
+extern void pax_set_initial_flags(struct linux_binprm *bprm);
+#elif defined(CONFIG_PAX_HOOK_ACL_FLAGS)
+extern void (*pax_set_initial_flags_func)(struct linux_binprm *bprm);
+#endif
+
+struct path;
+extern char *pax_get_path(const struct path *path, char *buf, int buflen);
+extern void pax_report_fault(struct pt_regs *regs, void *pc, void *sp);
+extern void pax_report_insns(struct pt_regs *regs, void *pc, void *sp);
+extern void pax_report_refcount_overflow(struct pt_regs *regs);
+
 /* Future-safe accessor for struct task_struct's cpus_allowed. */
 #define tsk_cpus_allowed(tsk) (&(tsk)->cpus_allowed)
 
@@ -1949,7 +2057,7 @@ struct pid_namespace;
 pid_t __task_pid_nr_ns(struct task_struct *task, enum pid_type type,
 			struct pid_namespace *ns);
 
-static inline pid_t task_pid_nr(struct task_struct *tsk)
+static inline pid_t task_pid_nr(const struct task_struct *tsk)
 {
 	return tsk->pid;
 }
@@ -2311,6 +2419,48 @@ extern u64 sched_clock_cpu(int cpu);
 
 extern void sched_clock_init(void);
 
+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
+static inline void populate_stack(void *stack)
+{
+	int c;
+	int *ptr = stack;
+	int *end = stack + THREAD_SIZE;
+
+	while (ptr < end) {
+		c = *(volatile int *)ptr;
+		(void)c;
+		ptr += PAGE_SIZE/sizeof(int);
+	}
+}
+#else
+static inline void populate_stack(void *stack)
+{
+}
+#endif
+
+#ifdef CONFIG_GRKERNSEC
+static inline bool current_is_ptracer(struct task_struct *task, u64 *exec_id)
+{
+	bool ret = false;
+        if (!task->ptrace)
+		return ret;
+
+	rcu_read_lock();
+	read_lock(&tasklist_lock);
+	if (task->parent && task->parent == current) {
+		ret = true;
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+		if (exec_id)
+			*exec_id = task->parent->exec_id;
+#endif
+	}
+	read_unlock(&tasklist_lock);
+	rcu_read_unlock();
+
+	return ret;
+}
+#endif
+
 #ifndef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK
 static inline void sched_clock_tick(void)
 {
@@ -2436,7 +2586,9 @@ extern void set_curr_task(int cpu, struct task_struct *p);
 void yield(void);
 
 union thread_union {
+#ifndef CONFIG_X86
 	struct thread_info thread_info;
+#endif
 	unsigned long stack[THREAD_SIZE/sizeof(long)];
 };
 
@@ -2469,6 +2621,7 @@ extern struct pid_namespace init_pid_ns;
  */
 
 extern struct task_struct *find_task_by_vpid(pid_t nr);
+extern struct task_struct *find_task_by_vpid_unrestricted(pid_t nr);
 extern struct task_struct *find_task_by_pid_ns(pid_t nr,
 		struct pid_namespace *ns);
 
@@ -2500,7 +2653,7 @@ extern void proc_caches_init(void);
 extern void flush_signals(struct task_struct *);
 extern void ignore_signals(struct task_struct *);
 extern void flush_signal_handlers(struct task_struct *, int force_default);
-extern int dequeue_signal(struct task_struct *tsk, sigset_t *mask, siginfo_t *info);
+extern int dequeue_signal(struct task_struct *tsk, sigset_t *mask, siginfo_t *info) __must_hold(&tsk->sighand->siglock);
 
 static inline int kernel_dequeue_signal(siginfo_t *info)
 {
@@ -2654,7 +2807,7 @@ extern void __cleanup_sighand(struct sighand_struct *);
 extern void exit_itimers(struct signal_struct *);
 extern void flush_itimer_signals(void);
 
-extern void do_group_exit(int);
+extern __noreturn void do_group_exit(int);
 
 extern int do_execve(struct filename *,
 		     const char __user * const __user *,
@@ -2769,11 +2922,13 @@ static inline int thread_group_empty(struct task_struct *p)
  * It must not be nested with write_lock_irq(&tasklist_lock),
  * neither inside nor outside.
  */
+static inline void task_lock(struct task_struct *p) __acquires(&p->alloc_lock);
 static inline void task_lock(struct task_struct *p)
 {
 	spin_lock(&p->alloc_lock);
 }
 
+static inline void task_unlock(struct task_struct *p) __releases(&p->alloc_lock);
 static inline void task_unlock(struct task_struct *p)
 {
 	spin_unlock(&p->alloc_lock);
@@ -2859,9 +3014,9 @@ static inline unsigned long *end_of_stack(struct task_struct *p)
 #define task_stack_end_corrupted(task) \
 		(*(end_of_stack(task)) != STACK_END_MAGIC)
 
-static inline int object_is_on_stack(void *obj)
+static inline int object_starts_on_stack(const void *obj)
 {
-	void *stack = task_stack_page(current);
+	const void *stack = task_stack_page(current);
 
 	return (obj >= stack) && (obj < (stack + THREAD_SIZE));
 }
diff --git a/include/linux/scif.h b/include/linux/scif.h
index 49a35d6..c6209dd 100644
--- a/include/linux/scif.h
+++ b/include/linux/scif.h
@@ -156,7 +156,7 @@ struct scif_client {
 	void (*probe)(struct scif_peer_dev *spdev);
 	void (*remove)(struct scif_peer_dev *spdev);
 	struct subsys_interface si;
-};
+} __do_const;
 
 #define SCIF_OPEN_FAILED ((scif_epd_t)-1)
 #define SCIF_REGISTER_FAILED ((off_t)-1)
diff --git a/include/linux/security.h b/include/linux/security.h
index 157f0cb..93989df 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -30,6 +30,7 @@
 #include <linux/string.h>
 #include <linux/mm.h>
 #include <linux/fs.h>
+#include <linux/grsecurity.h>
 
 struct linux_binprm;
 struct cred;
diff --git a/include/linux/sem.h b/include/linux/sem.h
index 976ce3a..db62f3f 100644
--- a/include/linux/sem.h
+++ b/include/linux/sem.h
@@ -21,7 +21,7 @@ struct sem_array {
 	struct list_head	list_id;	/* undo requests on this array */
 	int			sem_nsems;	/* no. of semaphores in array */
 	int			complex_count;	/* pending complex operations */
-};
+} __randomize_layout;
 
 #ifdef CONFIG_SYSVIPC
 
diff --git a/include/linux/semaphore.h b/include/linux/semaphore.h
index dc368b8..e895209 100644
--- a/include/linux/semaphore.h
+++ b/include/linux/semaphore.h
@@ -37,7 +37,7 @@ static inline void sema_init(struct semaphore *sem, int val)
 }
 
 extern void down(struct semaphore *sem);
-extern int __must_check down_interruptible(struct semaphore *sem);
+extern int __must_check down_interruptible(struct semaphore *sem) __intentional_overflow(-1);
 extern int __must_check down_killable(struct semaphore *sem);
 extern int __must_check down_trylock(struct semaphore *sem);
 extern int __must_check down_timeout(struct semaphore *sem, long jiffies);
diff --git a/include/linux/seq_buf.h b/include/linux/seq_buf.h
index fb7eb9c..fcfd102 100644
--- a/include/linux/seq_buf.h
+++ b/include/linux/seq_buf.h
@@ -16,7 +16,7 @@
  * @readpos:	The next position to read in the buffer.
  */
 struct seq_buf {
-	char			*buffer;
+	unsigned char		*buffer;
 	size_t			size;
 	size_t			len;
 	loff_t			readpos;
@@ -78,7 +78,7 @@ static inline unsigned int seq_buf_used(struct seq_buf *s)
  * Return the number of bytes available in the buffer, or zero if
  * there's no space.
  */
-static inline size_t seq_buf_get_buf(struct seq_buf *s, char **bufp)
+static inline size_t seq_buf_get_buf(struct seq_buf *s, unsigned char **bufp)
 {
 	WARN_ON(s->len > s->size + 1);
 
diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
index f3d45dd..4539816 100644
--- a/include/linux/seq_file.h
+++ b/include/linux/seq_file.h
@@ -25,6 +25,9 @@ struct seq_file {
 	const struct seq_operations *op;
 	int poll_event;
 	const struct file *file;
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	u64 exec_id;
+#endif
 	void *private;
 };
 
@@ -34,6 +37,7 @@ struct seq_operations {
 	void * (*next) (struct seq_file *m, void *v, loff_t *pos);
 	int (*show) (struct seq_file *m, void *v);
 };
+typedef struct seq_operations __no_const seq_operations_no_const;
 
 #define SEQ_SKIP 1
 
@@ -106,6 +110,7 @@ void seq_pad(struct seq_file *m, char c);
 
 char *mangle_path(char *s, const char *p, const char *esc);
 int seq_open(struct file *, const struct seq_operations *);
+int seq_open_restrict(struct file *, const struct seq_operations *);
 ssize_t seq_read(struct file *, char __user *, size_t, loff_t *);
 loff_t seq_lseek(struct file *, loff_t, int);
 int seq_release(struct inode *, struct file *);
@@ -133,6 +138,7 @@ int seq_path_root(struct seq_file *m, const struct path *path,
 		  const struct path *root, const char *esc);
 
 int single_open(struct file *, int (*)(struct seq_file *, void *), void *);
+int single_open_restrict(struct file *, int (*)(struct seq_file *, void *), void *);
 int single_open_size(struct file *, int (*)(struct seq_file *, void *), void *, size_t);
 int single_release(struct inode *, struct file *);
 void *__seq_open_private(struct file *, const struct seq_operations *, int);
diff --git a/include/linux/seqlock.h b/include/linux/seqlock.h
index e058210..386666a 100644
--- a/include/linux/seqlock.h
+++ b/include/linux/seqlock.h
@@ -440,42 +440,49 @@ static inline unsigned read_seqretry(const seqlock_t *sl, unsigned start)
  * Acts like a normal spin_lock/unlock.
  * Don't need preempt_disable() because that is in the spin_lock already.
  */
+static inline void write_seqlock(seqlock_t *sl) __acquires(sl);
 static inline void write_seqlock(seqlock_t *sl)
 {
 	spin_lock(&sl->lock);
 	write_seqcount_begin(&sl->seqcount);
 }
 
+static inline void write_sequnlock(seqlock_t *sl) __releases(sl);
 static inline void write_sequnlock(seqlock_t *sl)
 {
 	write_seqcount_end(&sl->seqcount);
 	spin_unlock(&sl->lock);
 }
 
+static inline void write_seqlock_bh(seqlock_t *sl) __acquires(sl);
 static inline void write_seqlock_bh(seqlock_t *sl)
 {
 	spin_lock_bh(&sl->lock);
 	write_seqcount_begin(&sl->seqcount);
 }
 
+static inline void write_sequnlock_bh(seqlock_t *sl) __releases(sl);
 static inline void write_sequnlock_bh(seqlock_t *sl)
 {
 	write_seqcount_end(&sl->seqcount);
 	spin_unlock_bh(&sl->lock);
 }
 
+static inline void write_seqlock_irq(seqlock_t *sl) __acquires(sl);
 static inline void write_seqlock_irq(seqlock_t *sl)
 {
 	spin_lock_irq(&sl->lock);
 	write_seqcount_begin(&sl->seqcount);
 }
 
+static inline void write_sequnlock_irq(seqlock_t *sl) __releases(sl);
 static inline void write_sequnlock_irq(seqlock_t *sl)
 {
 	write_seqcount_end(&sl->seqcount);
 	spin_unlock_irq(&sl->lock);
 }
 
+static inline unsigned long __write_seqlock_irqsave(seqlock_t *sl) __acquires(sl);
 static inline unsigned long __write_seqlock_irqsave(seqlock_t *sl)
 {
 	unsigned long flags;
@@ -488,6 +495,7 @@ static inline unsigned long __write_seqlock_irqsave(seqlock_t *sl)
 #define write_seqlock_irqsave(lock, flags)				\
 	do { flags = __write_seqlock_irqsave(lock); } while (0)
 
+static inline void write_sequnlock_irqrestore(seqlock_t *sl, unsigned long flags) __releases(sl);
 static inline void
 write_sequnlock_irqrestore(seqlock_t *sl, unsigned long flags)
 {
@@ -500,11 +508,13 @@ write_sequnlock_irqrestore(seqlock_t *sl, unsigned long flags)
  * but doesn't update the sequence number. Acts like a normal spin_lock/unlock.
  * Don't need preempt_disable() because that is in the spin_lock already.
  */
+static inline void read_seqlock_excl(seqlock_t *sl) __acquires(sl);
 static inline void read_seqlock_excl(seqlock_t *sl)
 {
 	spin_lock(&sl->lock);
 }
 
+static inline void read_sequnlock_excl(seqlock_t *sl) __releases(sl);
 static inline void read_sequnlock_excl(seqlock_t *sl)
 {
 	spin_unlock(&sl->lock);
diff --git a/include/linux/shm.h b/include/linux/shm.h
index 04e8818..af85805 100644
--- a/include/linux/shm.h
+++ b/include/linux/shm.h
@@ -22,7 +22,11 @@ struct shmid_kernel /* private to the kernel */
 	/* The task created the shm object.  NULL if the task is dead. */
 	struct task_struct	*shm_creator;
 	struct list_head	shm_clist;	/* list by creator */
-};
+#ifdef CONFIG_GRKERNSEC
+	u64			shm_createtime;
+	pid_t			shm_lapid;
+#endif
+} __randomize_layout;
 
 /* shm_mode upper byte flags */
 #define	SHM_DEST	01000	/* segment will be destroyed on last detach */
diff --git a/include/linux/signal.h b/include/linux/signal.h
index d80259a..41a639a 100644
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -303,7 +303,7 @@ static inline void allow_signal(int sig)
 	 * know it'll be handled, so that they don't get converted to
 	 * SIGKILL or just silently dropped.
 	 */
-	kernel_sigaction(sig, (__force __sighandler_t)2);
+	kernel_sigaction(sig, (__force_user __sighandler_t)2);
 }
 
 static inline void disallow_signal(int sig)
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 15d0df9..31bf6d0 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -889,7 +889,7 @@ struct sk_buff *__alloc_skb(unsigned int size, gfp_t priority, int flags,
 			    int node);
 struct sk_buff *__build_skb(void *data, unsigned int frag_size);
 struct sk_buff *build_skb(void *data, unsigned int frag_size);
-static inline struct sk_buff *alloc_skb(unsigned int size,
+static inline struct sk_buff * __intentional_overflow(0) alloc_skb(unsigned int size,
 					gfp_t priority)
 {
 	return __alloc_skb(size, priority, 0, NUMA_NO_NODE);
@@ -2187,7 +2187,7 @@ static inline unsigned char *skb_checksum_start(const struct sk_buff *skb)
 	return skb->head + skb->csum_start;
 }
 
-static inline int skb_transport_offset(const struct sk_buff *skb)
+static inline int __intentional_overflow(0) skb_transport_offset(const struct sk_buff *skb)
 {
 	return skb_transport_header(skb) - skb->data;
 }
@@ -2202,7 +2202,7 @@ static inline u32 skb_inner_network_header_len(const struct sk_buff *skb)
 	return skb->inner_transport_header - skb->inner_network_header;
 }
 
-static inline int skb_network_offset(const struct sk_buff *skb)
+static inline int __intentional_overflow(0) skb_network_offset(const struct sk_buff *skb)
 {
 	return skb_network_header(skb) - skb->data;
 }
@@ -2262,7 +2262,7 @@ static inline int pskb_network_may_pull(struct sk_buff *skb, unsigned int len)
  * NET_IP_ALIGN(2) + ethernet_header(14) + IP_header(20/40) + ports(8)
  */
 #ifndef NET_SKB_PAD
-#define NET_SKB_PAD	max(32, L1_CACHE_BYTES)
+#define NET_SKB_PAD	max(_AC(32,UL), L1_CACHE_BYTES)
 #endif
 
 int ___pskb_trim(struct sk_buff *skb, unsigned int len);
@@ -2936,9 +2936,9 @@ struct sk_buff *skb_recv_datagram(struct sock *sk, unsigned flags, int noblock,
 				  int *err);
 unsigned int datagram_poll(struct file *file, struct socket *sock,
 			   struct poll_table_struct *wait);
-int skb_copy_datagram_iter(const struct sk_buff *from, int offset,
+int __intentional_overflow(0) skb_copy_datagram_iter(const struct sk_buff *from, int offset,
 			   struct iov_iter *to, int size);
-static inline int skb_copy_datagram_msg(const struct sk_buff *from, int offset,
+static inline int __intentional_overflow(2,4) skb_copy_datagram_msg(const struct sk_buff *from, int offset,
 					struct msghdr *msg, int size)
 {
 	return skb_copy_datagram_iter(from, offset, &msg->msg_iter, size);
@@ -3467,6 +3467,9 @@ static inline void nf_reset(struct sk_buff *skb)
 	nf_bridge_put(skb->nf_bridge);
 	skb->nf_bridge = NULL;
 #endif
+#if IS_ENABLED(CONFIG_NETFILTER_XT_TARGET_TRACE)
+	skb->nf_trace = 0;
+#endif
 }
 
 static inline void nf_reset_trace(struct sk_buff *skb)
diff --git a/include/linux/slab.h b/include/linux/slab.h
index 508bd82..37e5199 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -15,14 +15,29 @@
 #include <linux/types.h>
 #include <linux/workqueue.h>
 
+#include <linux/err.h>
 
 /*
  * Flags to pass to kmem_cache_create().
  * The ones marked DEBUG are only valid if CONFIG_DEBUG_SLAB is set.
  */
 #define SLAB_CONSISTENCY_CHECKS	0x00000100UL	/* DEBUG: Perform (expensive) checks on alloc/free */
+
+#ifdef CONFIG_PAX_USERCOPY_SLABS
+#define SLAB_USERCOPY		0x00000200UL	/* PaX: Allow copying objs to/from userland */
+#else
+#define SLAB_USERCOPY		0x00000000UL
+#endif
+
 #define SLAB_RED_ZONE		0x00000400UL	/* DEBUG: Red zone objs in a cache */
 #define SLAB_POISON		0x00000800UL	/* DEBUG: Poison objects */
+
+#ifdef CONFIG_PAX_MEMORY_SANITIZE
+#define SLAB_NO_SANITIZE	0x00001000UL	/* PaX: Do not sanitize objs on free */
+#else
+#define SLAB_NO_SANITIZE	0x00000000UL
+#endif
+
 #define SLAB_HWCACHE_ALIGN	0x00002000UL	/* Align objs on cache lines */
 #define SLAB_CACHE_DMA		0x00004000UL	/* Use GFP_DMA memory */
 #define SLAB_STORE_USER		0x00010000UL	/* DEBUG: Store the last owner for bug hunting */
@@ -109,10 +124,13 @@
  * ZERO_SIZE_PTR can be passed to kfree though in the same way that NULL can.
  * Both make kfree a no-op.
  */
-#define ZERO_SIZE_PTR ((void *)16)
+#define ZERO_SIZE_PTR				\
+({						\
+	BUILD_BUG_ON(!(MAX_ERRNO & ~PAGE_MASK));\
+	(void *)(-MAX_ERRNO-1L);		\
+})
 
-#define ZERO_OR_NULL_PTR(x) ((unsigned long)(x) <= \
-				(unsigned long)ZERO_SIZE_PTR)
+#define ZERO_OR_NULL_PTR(x) ((unsigned long)(x) - 1 >= (unsigned long)ZERO_SIZE_PTR - 1)
 
 #include <linux/kmemleak.h>
 #include <linux/kasan.h>
@@ -154,6 +172,8 @@ void * __must_check krealloc(const void *, size_t, gfp_t);
 void kfree(const void *);
 void kzfree(const void *);
 size_t ksize(const void *);
+const char *check_heap_object(const void *ptr, unsigned long n);
+bool is_usercopy_object(const void *ptr);
 
 /*
  * Some archs want to perform DMA into kmalloc caches and need a guaranteed
@@ -264,6 +284,10 @@ extern struct kmem_cache *kmalloc_caches[KMALLOC_SHIFT_HIGH + 1];
 extern struct kmem_cache *kmalloc_dma_caches[KMALLOC_SHIFT_HIGH + 1];
 #endif
 
+#ifdef CONFIG_PAX_USERCOPY_SLABS
+extern struct kmem_cache *kmalloc_usercopy_caches[KMALLOC_SHIFT_HIGH + 1];
+#endif
+
 /*
  * Figure out which kmalloc slab an allocation of a certain size
  * belongs to.
@@ -272,7 +296,7 @@ extern struct kmem_cache *kmalloc_dma_caches[KMALLOC_SHIFT_HIGH + 1];
  * 2 = 129 .. 192 bytes
  * n = 2^(n-1)+1 .. 2^n
  */
-static __always_inline int kmalloc_index(size_t size)
+static __always_inline __size_overflow(1) int kmalloc_index(size_t size)
 {
 	if (!size)
 		return 0;
@@ -315,7 +339,7 @@ static __always_inline int kmalloc_index(size_t size)
 }
 #endif /* !CONFIG_SLOB */
 
-void *__kmalloc(size_t size, gfp_t flags) __assume_kmalloc_alignment;
+void *__kmalloc(size_t size, gfp_t flags) __assume_kmalloc_alignment __alloc_size(1) __size_overflow(1);
 void *kmem_cache_alloc(struct kmem_cache *, gfp_t flags) __assume_slab_alignment;
 void kmem_cache_free(struct kmem_cache *, void *);
 
@@ -339,10 +363,10 @@ static __always_inline void kfree_bulk(size_t size, void **p)
 }
 
 #ifdef CONFIG_NUMA
-void *__kmalloc_node(size_t size, gfp_t flags, int node) __assume_kmalloc_alignment;
+void *__kmalloc_node(size_t size, gfp_t flags, int node) __assume_kmalloc_alignment __alloc_size(1) __size_overflow(1);
 void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node) __assume_slab_alignment;
 #else
-static __always_inline void *__kmalloc_node(size_t size, gfp_t flags, int node)
+static __always_inline void * __alloc_size(1) __size_overflow(1) __kmalloc_node(size_t size, gfp_t flags, int node)
 {
 	return __kmalloc(size, flags);
 }
diff --git a/include/linux/slab_def.h b/include/linux/slab_def.h
index 9edbbf3..c03134d 100644
--- a/include/linux/slab_def.h
+++ b/include/linux/slab_def.h
@@ -40,7 +40,7 @@ struct kmem_cache {
 /* 4) cache creation/removal */
 	const char *name;
 	struct list_head list;
-	int refcount;
+	atomic_t refcount;
 	int object_size;
 	int align;
 
@@ -56,10 +56,14 @@ struct kmem_cache {
 	unsigned long node_allocs;
 	unsigned long node_frees;
 	unsigned long node_overflow;
-	atomic_t allochit;
-	atomic_t allocmiss;
-	atomic_t freehit;
-	atomic_t freemiss;
+	atomic_unchecked_t allochit;
+	atomic_unchecked_t allocmiss;
+	atomic_unchecked_t freehit;
+	atomic_unchecked_t freemiss;
+#ifdef CONFIG_PAX_MEMORY_SANITIZE
+	atomic_unchecked_t sanitized;
+	atomic_unchecked_t not_sanitized;
+#endif
 #ifdef CONFIG_DEBUG_SLAB_LEAK
 	atomic_t store_user_clean;
 #endif
diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index 665cd0c..d5dccd7 100644
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -74,7 +74,7 @@ struct kmem_cache {
 	struct kmem_cache_order_objects max;
 	struct kmem_cache_order_objects min;
 	gfp_t allocflags;	/* gfp flags to use on each alloc */
-	int refcount;		/* Refcount for slab cache destroy */
+	atomic_t refcount;	/* Refcount for slab cache destroy */
 	void (*ctor)(void *);
 	int inuse;		/* Offset to metadata */
 	int align;		/* Alignment */
diff --git a/include/linux/smp.h b/include/linux/smp.h
index c441407..f487b83 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -183,7 +183,9 @@ static inline void smp_init(void) { }
 #endif
 
 #define get_cpu()		({ preempt_disable(); smp_processor_id(); })
+#define raw_get_cpu()		({ raw_preempt_disable(); raw_smp_processor_id(); })
 #define put_cpu()		preempt_enable()
+#define raw_put_cpu_no_resched()	raw_preempt_enable_no_resched()
 
 /*
  * Callback to arch code if there's nosmp or maxcpus=0 on the
diff --git a/include/linux/sock_diag.h b/include/linux/sock_diag.h
index 4018b48..68baf26 100644
--- a/include/linux/sock_diag.h
+++ b/include/linux/sock_diag.h
@@ -16,7 +16,7 @@ struct sock_diag_handler {
 	int (*dump)(struct sk_buff *skb, struct nlmsghdr *nlh);
 	int (*get_info)(struct sk_buff *skb, struct sock *sk);
 	int (*destroy)(struct sk_buff *skb, struct nlmsghdr *nlh);
-};
+} __do_const;
 
 int sock_diag_register(const struct sock_diag_handler *h);
 void sock_diag_unregister(const struct sock_diag_handler *h);
diff --git a/include/linux/sonet.h b/include/linux/sonet.h
index 680f9a3..f13aeb0 100644
--- a/include/linux/sonet.h
+++ b/include/linux/sonet.h
@@ -7,7 +7,7 @@
 #include <uapi/linux/sonet.h>
 
 struct k_sonet_stats {
-#define __HANDLE_ITEM(i) atomic_t i
+#define __HANDLE_ITEM(i) atomic_unchecked_t i
 	__SONET_ITEMS
 #undef __HANDLE_ITEM
 };
diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h
index 47dd0ce..3275f16 100644
--- a/include/linux/spinlock.h
+++ b/include/linux/spinlock.h
@@ -142,14 +142,17 @@ do {								\
  extern int do_raw_spin_trylock(raw_spinlock_t *lock);
  extern void do_raw_spin_unlock(raw_spinlock_t *lock) __releases(lock);
 #else
-static inline void do_raw_spin_lock(raw_spinlock_t *lock) __acquires(lock)
+static inline void do_raw_spin_lock(raw_spinlock_t *lock) __acquires(lock);
+static inline void do_raw_spin_lock(raw_spinlock_t *lock)
 {
 	__acquire(lock);
 	arch_spin_lock(&lock->raw_lock);
 }
 
 static inline void
-do_raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long *flags) __acquires(lock)
+do_raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long *flags) __acquires(lock);
+static inline void
+do_raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long *flags)
 {
 	__acquire(lock);
 	arch_spin_lock_flags(&lock->raw_lock, *flags);
@@ -160,7 +163,8 @@ static inline int do_raw_spin_trylock(raw_spinlock_t *lock)
 	return arch_spin_trylock(&(lock)->raw_lock);
 }
 
-static inline void do_raw_spin_unlock(raw_spinlock_t *lock) __releases(lock)
+static inline void do_raw_spin_unlock(raw_spinlock_t *lock) __releases(lock);
+static inline void do_raw_spin_unlock(raw_spinlock_t *lock)
 {
 	arch_spin_unlock(&lock->raw_lock);
 	__release(lock);
@@ -297,11 +301,13 @@ do {							\
 	raw_spin_lock_init(&(_lock)->rlock);		\
 } while (0)
 
+static __always_inline void spin_lock(spinlock_t *lock) __acquires(lock);
 static __always_inline void spin_lock(spinlock_t *lock)
 {
 	raw_spin_lock(&lock->rlock);
 }
 
+static __always_inline void spin_lock_bh(spinlock_t *lock) __acquires(lock);
 static __always_inline void spin_lock_bh(spinlock_t *lock)
 {
 	raw_spin_lock_bh(&lock->rlock);
@@ -327,6 +333,7 @@ do {									\
 	raw_spin_lock_nest_lock(spinlock_check(lock), nest_lock);	\
 } while (0)
 
+static __always_inline void spin_lock_irq(spinlock_t *lock) __acquires(lock);
 static __always_inline void spin_lock_irq(spinlock_t *lock)
 {
 	raw_spin_lock_irq(&lock->rlock);
@@ -342,21 +349,25 @@ do {									\
 	raw_spin_lock_irqsave_nested(spinlock_check(lock), flags, subclass); \
 } while (0)
 
+static __always_inline void spin_unlock(spinlock_t *lock) __releases(lock);
 static __always_inline void spin_unlock(spinlock_t *lock)
 {
 	raw_spin_unlock(&lock->rlock);
 }
 
+static __always_inline void spin_unlock_bh(spinlock_t *lock) __releases(lock);
 static __always_inline void spin_unlock_bh(spinlock_t *lock)
 {
 	raw_spin_unlock_bh(&lock->rlock);
 }
 
+static __always_inline void spin_unlock_irq(spinlock_t *lock) __releases(lock);
 static __always_inline void spin_unlock_irq(spinlock_t *lock)
 {
 	raw_spin_unlock_irq(&lock->rlock);
 }
 
+static __always_inline void spin_unlock_irqrestore(spinlock_t *lock, unsigned long flags) __releases(lock);
 static __always_inline void spin_unlock_irqrestore(spinlock_t *lock, unsigned long flags)
 {
 	raw_spin_unlock_irqrestore(&lock->rlock, flags);
diff --git a/include/linux/srcu.h b/include/linux/srcu.h
index dc8eb63..b4b9482 100644
--- a/include/linux/srcu.h
+++ b/include/linux/srcu.h
@@ -228,7 +228,8 @@ static inline int srcu_read_lock_held(struct srcu_struct *sp)
  * srcu_read_unlock() in an irq handler if the matching srcu_read_lock()
  * was invoked in process context.
  */
-static inline int srcu_read_lock(struct srcu_struct *sp) __acquires(sp)
+static inline int srcu_read_lock(struct srcu_struct *sp) __acquires(sp);
+static inline int srcu_read_lock(struct srcu_struct *sp)
 {
 	int retval;
 
@@ -246,8 +247,8 @@ static inline int srcu_read_lock(struct srcu_struct *sp) __acquires(sp)
  *
  * Exit an SRCU read-side critical section.
  */
+static inline void srcu_read_unlock(struct srcu_struct *sp, int idx) __releases(sp);
 static inline void srcu_read_unlock(struct srcu_struct *sp, int idx)
-	__releases(sp)
 {
 	rcu_lock_release(&(sp)->dep_map);
 	__srcu_read_unlock(sp, idx);
diff --git a/include/linux/string.h b/include/linux/string.h
index d3993a7..19af70c 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -18,51 +18,51 @@ extern void *memdup_user_nul(const void __user *, size_t);
 #include <asm/string.h>
 
 #ifndef __HAVE_ARCH_STRCPY
-extern char * strcpy(char *,const char *);
+extern char * strcpy(char *,const char *) __nocapture(2);
 #endif
 #ifndef __HAVE_ARCH_STRNCPY
-extern char * strncpy(char *,const char *, __kernel_size_t);
+extern char * strncpy(char *,const char *, __kernel_size_t) __nocapture(2);
 #endif
 #ifndef __HAVE_ARCH_STRLCPY
-size_t strlcpy(char *, const char *, size_t);
+size_t strlcpy(char *, const char *, size_t) __nocapture(2);
 #endif
 #ifndef __HAVE_ARCH_STRSCPY
-ssize_t __must_check strscpy(char *, const char *, size_t);
+ssize_t __must_check strscpy(char *, const char *, size_t) __nocapture(2);
 #endif
 #ifndef __HAVE_ARCH_STRCAT
-extern char * strcat(char *, const char *);
+extern char * strcat(char *, const char *) __nocapture(2);
 #endif
 #ifndef __HAVE_ARCH_STRNCAT
-extern char * strncat(char *, const char *, __kernel_size_t);
+extern char * strncat(char *, const char *, __kernel_size_t) __nocapture(2);
 #endif
 #ifndef __HAVE_ARCH_STRLCAT
-extern size_t strlcat(char *, const char *, __kernel_size_t);
+extern size_t strlcat(char *, const char *, __kernel_size_t) __nocapture(2);
 #endif
 #ifndef __HAVE_ARCH_STRCMP
-extern int strcmp(const char *,const char *);
+extern int strcmp(const char *,const char *) __nocapture(1, 2);
 #endif
 #ifndef __HAVE_ARCH_STRNCMP
-extern int strncmp(const char *,const char *,__kernel_size_t);
+extern int strncmp(const char *,const char *,__kernel_size_t) __nocapture(1, 2);
 #endif
 #ifndef __HAVE_ARCH_STRCASECMP
-extern int strcasecmp(const char *s1, const char *s2);
+extern int strcasecmp(const char *s1, const char *s2) __nocapture(1, 2);
 #endif
 #ifndef __HAVE_ARCH_STRNCASECMP
-extern int strncasecmp(const char *s1, const char *s2, size_t n);
+extern int strncasecmp(const char *s1, const char *s2, size_t n) __nocapture(1, 2);
 #endif
 #ifndef __HAVE_ARCH_STRCHR
-extern char * strchr(const char *,int);
+extern char * strchr(const char *,int) __nocapture(1);
 #endif
 #ifndef __HAVE_ARCH_STRCHRNUL
-extern char * strchrnul(const char *,int);
+extern char * strchrnul(const char *,int) __nocapture(1);
 #endif
 #ifndef __HAVE_ARCH_STRNCHR
-extern char * strnchr(const char *, size_t, int);
+extern char * strnchr(const char *, size_t, int) __nocapture(1);
 #endif
 #ifndef __HAVE_ARCH_STRRCHR
-extern char * strrchr(const char *,int);
+extern char * strrchr(const char *,int) __nocapture(1);
 #endif
-extern char * __must_check skip_spaces(const char *);
+extern char * __must_check skip_spaces(const char *) __nocapture(1);
 
 extern char *strim(char *);
 
@@ -72,10 +72,10 @@ static inline __must_check char *strstrip(char *str)
 }
 
 #ifndef __HAVE_ARCH_STRSTR
-extern char * strstr(const char *, const char *);
+extern char * strstr(const char *, const char *) __nocapture(1, 2);
 #endif
 #ifndef __HAVE_ARCH_STRNSTR
-extern char * strnstr(const char *, const char *, size_t);
+extern char * strnstr(const char *, const char *, size_t) __nocapture(1, 2);
 #endif
 #ifndef __HAVE_ARCH_STRLEN
 extern __kernel_size_t strlen(const char *);
@@ -84,51 +84,51 @@ extern __kernel_size_t strlen(const char *);
 extern __kernel_size_t strnlen(const char *,__kernel_size_t);
 #endif
 #ifndef __HAVE_ARCH_STRPBRK
-extern char * strpbrk(const char *,const char *);
+extern char * strpbrk(const char *,const char *) __nocapture(1, 2);
 #endif
 #ifndef __HAVE_ARCH_STRSEP
-extern char * strsep(char **,const char *);
+extern char * strsep(char **,const char *) __nocapture(2);
 #endif
 #ifndef __HAVE_ARCH_STRSPN
-extern __kernel_size_t strspn(const char *,const char *);
+extern __kernel_size_t strspn(const char *,const char *) __nocapture(1, 2);
 #endif
 #ifndef __HAVE_ARCH_STRCSPN
-extern __kernel_size_t strcspn(const char *,const char *);
+extern __kernel_size_t strcspn(const char *,const char *) __nocapture(1, 2);
 #endif
 
 #ifndef __HAVE_ARCH_MEMSET
 extern void * memset(void *,int,__kernel_size_t);
 #endif
 #ifndef __HAVE_ARCH_MEMCPY
-extern void * memcpy(void *,const void *,__kernel_size_t);
+extern void * memcpy(void *,const void *,__kernel_size_t) __nocapture(2);
 #endif
 #ifndef __HAVE_ARCH_MEMMOVE
-extern void * memmove(void *,const void *,__kernel_size_t);
+extern void * memmove(void *,const void *,__kernel_size_t) __nocapture(2);
 #endif
 #ifndef __HAVE_ARCH_MEMSCAN
 extern void * memscan(void *,int,__kernel_size_t);
 #endif
 #ifndef __HAVE_ARCH_MEMCMP
-extern int memcmp(const void *,const void *,__kernel_size_t);
+extern int memcmp(const void *,const void *,__kernel_size_t) __nocapture(1, 2);
 #endif
 #ifndef __HAVE_ARCH_MEMCHR
-extern void * memchr(const void *,int,__kernel_size_t);
+extern void * memchr(const void *,int,__kernel_size_t) __nocapture(1);
 #endif
-void *memchr_inv(const void *s, int c, size_t n);
+void *memchr_inv(const void *s, int c, size_t n) __nocapture(1);
 char *strreplace(char *s, char old, char new);
 
 extern void kfree_const(const void *x);
 
-extern char *kstrdup(const char *s, gfp_t gfp);
-extern const char *kstrdup_const(const char *s, gfp_t gfp);
-extern char *kstrndup(const char *s, size_t len, gfp_t gfp);
-extern void *kmemdup(const void *src, size_t len, gfp_t gfp);
+extern char *kstrdup(const char *s, gfp_t gfp) __nocapture(1);
+extern const char *kstrdup_const(const char *s, gfp_t gfp) __nocapture(1);
+extern char *kstrndup(const char *s, size_t len, gfp_t gfp) __nocapture(1);
+extern void *kmemdup(const void *src, size_t len, gfp_t gfp) __nocapture(1);
 
 extern char **argv_split(gfp_t gfp, const char *str, int *argcp);
 extern void argv_free(char **argv);
 
-extern bool sysfs_streq(const char *s1, const char *s2);
-extern int kstrtobool(const char *s, bool *res);
+extern bool sysfs_streq(const char *s1, const char *s2) __nocapture(1, 2);
+extern int kstrtobool(const char *s, bool *res) __nocapture(1);
 static inline int strtobool(const char *s, bool *res)
 {
 	return kstrtobool(s, res);
@@ -137,8 +137,8 @@ static inline int strtobool(const char *s, bool *res)
 int match_string(const char * const *array, size_t n, const char *string);
 
 #ifdef CONFIG_BINARY_PRINTF
-int vbin_printf(u32 *bin_buf, size_t size, const char *fmt, va_list args);
-int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf);
+int vbin_printf(u32 *bin_buf, size_t size, const char *fmt, va_list args) __nocapture(3);
+int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf) __nocapture(3);
 int bprintf(u32 *bin_buf, size_t size, const char *fmt, ...) __printf(3, 4);
 #endif
 
diff --git a/include/linux/sunrpc/addr.h b/include/linux/sunrpc/addr.h
index 5c9c6cd..f16c5c9 100644
--- a/include/linux/sunrpc/addr.h
+++ b/include/linux/sunrpc/addr.h
@@ -23,9 +23,9 @@ static inline unsigned short rpc_get_port(const struct sockaddr *sap)
 {
 	switch (sap->sa_family) {
 	case AF_INET:
-		return ntohs(((struct sockaddr_in *)sap)->sin_port);
+		return ntohs(((const struct sockaddr_in *)sap)->sin_port);
 	case AF_INET6:
-		return ntohs(((struct sockaddr_in6 *)sap)->sin6_port);
+		return ntohs(((const struct sockaddr_in6 *)sap)->sin6_port);
 	}
 	return 0;
 }
@@ -58,7 +58,7 @@ static inline bool rpc_cmp_addr4(const struct sockaddr *sap1,
 static inline bool __rpc_copy_addr4(struct sockaddr *dst,
 				    const struct sockaddr *src)
 {
-	const struct sockaddr_in *ssin = (struct sockaddr_in *) src;
+	const struct sockaddr_in *ssin = (const struct sockaddr_in *) src;
 	struct sockaddr_in *dsin = (struct sockaddr_in *) dst;
 
 	dsin->sin_family = ssin->sin_family;
@@ -177,7 +177,7 @@ static inline u32 rpc_get_scope_id(const struct sockaddr *sa)
 	if (sa->sa_family != AF_INET6)
 		return 0;
 
-	return ((struct sockaddr_in6 *) sa)->sin6_scope_id;
+	return ((const struct sockaddr_in6 *) sa)->sin6_scope_id;
 }
 
 #endif /* _LINUX_SUNRPC_ADDR_H */
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index 9a7ddba..10918de1 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -103,7 +103,7 @@ struct rpc_procinfo {
 	unsigned int		p_timer;	/* Which RTT timer to use */
 	u32			p_statidx;	/* Which procedure to account */
 	const char *		p_name;		/* name of procedure */
-};
+} __do_const;
 
 #ifdef __KERNEL__
 
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 7ca44fb..368f7cf 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -425,7 +425,7 @@ struct svc_procedure {
 	unsigned int		pc_count;	/* call count */
 	unsigned int		pc_cachetype;	/* cache info (NFS) */
 	unsigned int		pc_xdrressize;	/* maximum size of XDR reply */
-};
+} __do_const;
 
 /*
  * Mode for mapping cpus to pools.
diff --git a/include/linux/sunrpc/svc_rdma.h b/include/linux/sunrpc/svc_rdma.h
index 3081339..22da86c 100644
--- a/include/linux/sunrpc/svc_rdma.h
+++ b/include/linux/sunrpc/svc_rdma.h
@@ -54,15 +54,15 @@ extern unsigned int svcrdma_max_requests;
 extern unsigned int svcrdma_max_bc_requests;
 extern unsigned int svcrdma_max_req_size;
 
-extern atomic_t rdma_stat_recv;
-extern atomic_t rdma_stat_read;
-extern atomic_t rdma_stat_write;
-extern atomic_t rdma_stat_sq_starve;
-extern atomic_t rdma_stat_rq_starve;
-extern atomic_t rdma_stat_rq_poll;
-extern atomic_t rdma_stat_rq_prod;
-extern atomic_t rdma_stat_sq_poll;
-extern atomic_t rdma_stat_sq_prod;
+extern atomic_unchecked_t rdma_stat_recv;
+extern atomic_unchecked_t rdma_stat_read;
+extern atomic_unchecked_t rdma_stat_write;
+extern atomic_unchecked_t rdma_stat_sq_starve;
+extern atomic_unchecked_t rdma_stat_rq_starve;
+extern atomic_unchecked_t rdma_stat_rq_poll;
+extern atomic_unchecked_t rdma_stat_rq_prod;
+extern atomic_unchecked_t rdma_stat_sq_poll;
+extern atomic_unchecked_t rdma_stat_sq_prod;
 
 /*
  * Contexts are built when an RDMA request is created and are a
diff --git a/include/linux/sunrpc/svcauth.h b/include/linux/sunrpc/svcauth.h
index c00f53a..8802c3b 100644
--- a/include/linux/sunrpc/svcauth.h
+++ b/include/linux/sunrpc/svcauth.h
@@ -127,7 +127,7 @@ struct auth_ops {
 	int	(*release)(struct svc_rqst *rq);
 	void	(*domain_release)(struct auth_domain *);
 	int	(*set_client)(struct svc_rqst *rq);
-};
+} __do_const;
 
 #define	SVC_GARBAGE	1
 #define	SVC_SYSERR	2
diff --git a/include/linux/swapops.h b/include/linux/swapops.h
index 5c3a5f3..84a8bef 100644
--- a/include/linux/swapops.h
+++ b/include/linux/swapops.h
@@ -165,7 +165,7 @@ static inline int is_write_migration_entry(swp_entry_t entry)
 
 #ifdef CONFIG_MEMORY_FAILURE
 
-extern atomic_long_t num_poisoned_pages __read_mostly;
+extern atomic_long_unchecked_t num_poisoned_pages __read_mostly;
 
 /*
  * Support for hardware poisoned pages
@@ -188,22 +188,22 @@ static inline bool test_set_page_hwpoison(struct page *page)
 
 static inline void num_poisoned_pages_inc(void)
 {
-	atomic_long_inc(&num_poisoned_pages);
+	atomic_long_inc_unchecked(&num_poisoned_pages);
 }
 
 static inline void num_poisoned_pages_dec(void)
 {
-	atomic_long_dec(&num_poisoned_pages);
+	atomic_long_dec_unchecked(&num_poisoned_pages);
 }
 
 static inline void num_poisoned_pages_add(long num)
 {
-	atomic_long_add(num, &num_poisoned_pages);
+	atomic_long_add_unchecked(num, &num_poisoned_pages);
 }
 
 static inline void num_poisoned_pages_sub(long num)
 {
-	atomic_long_sub(num, &num_poisoned_pages);
+	atomic_long_sub_unchecked(num, &num_poisoned_pages);
 }
 #else
 
diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
index 017fced..d4a9fc9 100644
--- a/include/linux/swiotlb.h
+++ b/include/linux/swiotlb.h
@@ -63,7 +63,8 @@ extern void
 
 extern void
 swiotlb_free_coherent(struct device *hwdev, size_t size,
-		      void *vaddr, dma_addr_t dma_handle);
+		      void *vaddr, dma_addr_t dma_handle,
+		      struct dma_attrs *attrs);
 
 extern dma_addr_t swiotlb_map_page(struct device *dev, struct page *page,
 				   unsigned long offset, size_t size,
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index d795472..258ce77 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -102,7 +102,12 @@ union bpf_attr;
 #define __TYPE_IS_L(t)	(__same_type((t)0, 0L))
 #define __TYPE_IS_UL(t)	(__same_type((t)0, 0UL))
 #define __TYPE_IS_LL(t) (__same_type((t)0, 0LL) || __same_type((t)0, 0ULL))
-#define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a
+#define __SC_LONG(t, a)	__typeof__(				\
+	__builtin_choose_expr(					\
+		sizeof(t) > sizeof(int),			\
+		(t) 0,						\
+		__builtin_choose_expr(__type_is_unsigned(t), 0UL, 0L)	\
+	)) a
 #define __SC_CAST(t, a)	(t) a
 #define __SC_ARGS(t, a)	a
 #define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long))
@@ -192,17 +197,18 @@ extern struct trace_event_functions exit_syscall_print_funcs;
 
 #define __PROTECT(...) asmlinkage_protect(__VA_ARGS__)
 #define __SYSCALL_DEFINEx(x, name, ...)					\
-	asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))	\
-		__attribute__((alias(__stringify(SyS##name))));		\
 	static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__));	\
-	asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__));	\
-	asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__))	\
+	static inline asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__))	\
 	{								\
 		long ret = SYSC##name(__MAP(x,__SC_CAST,__VA_ARGS__));	\
 		__MAP(x,__SC_TEST,__VA_ARGS__);				\
 		__PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__));	\
 		return ret;						\
 	}								\
+	asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))	\
+	{								\
+		return SyS##name(__MAP(x,__SC_ARGS,__VA_ARGS__));	\
+	}								\
 	static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__))
 
 asmlinkage long sys32_quotactl(unsigned int cmd, const char __user *special,
@@ -384,11 +390,11 @@ asmlinkage long sys_sync(void);
 asmlinkage long sys_fsync(unsigned int fd);
 asmlinkage long sys_fdatasync(unsigned int fd);
 asmlinkage long sys_bdflush(int func, long data);
-asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
-				char __user *type, unsigned long flags,
+asmlinkage long sys_mount(const char __user *dev_name, const char __user *dir_name,
+				const char __user *type, unsigned long flags,
 				void __user *data);
-asmlinkage long sys_umount(char __user *name, int flags);
-asmlinkage long sys_oldumount(char __user *name);
+asmlinkage long sys_umount(const char __user *name, int flags);
+asmlinkage long sys_oldumount(const char __user *name);
 asmlinkage long sys_truncate(const char __user *path, long length);
 asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
 asmlinkage long sys_stat(const char __user *filename,
@@ -457,7 +463,7 @@ asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size,
 			unsigned long prot, unsigned long pgoff,
 			unsigned long flags);
 asmlinkage long sys_msync(unsigned long start, size_t len, int flags);
-asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice);
+asmlinkage long sys_fadvise64(int fd, loff_t offset, loff_t len, int advice);
 asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
 asmlinkage long sys_munmap(unsigned long addr, size_t len);
 asmlinkage long sys_mlock(unsigned long start, size_t len);
@@ -610,7 +616,7 @@ asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *);
 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
 asmlinkage long sys_send(int, void __user *, size_t, unsigned);
 asmlinkage long sys_sendto(int, void __user *, size_t, unsigned,
-				struct sockaddr __user *, int);
+				struct sockaddr __user *, int) __intentional_overflow(0);
 asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
 			     unsigned int vlen, unsigned flags);
@@ -669,10 +675,10 @@ asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
 
 asmlinkage long sys_semget(key_t key, int nsems, int semflg);
 asmlinkage long sys_semop(int semid, struct sembuf __user *sops,
-				unsigned nsops);
+				long nsops);
 asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg);
 asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops,
-				unsigned nsops,
+				long nsops,
 				const struct timespec __user *timeout);
 asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg);
 asmlinkage long sys_shmget(key_t key, size_t size, int flag);
@@ -706,7 +712,7 @@ asmlinkage long sys_sysfs(int option,
 				unsigned long arg1, unsigned long arg2);
 asmlinkage long sys_syslog(int type, char __user *buf, int len);
 asmlinkage long sys_uselib(const char __user *library);
-asmlinkage long sys_ni_syscall(void);
+asmlinkage long sys_ni_syscall(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
 asmlinkage long sys_ptrace(long request, long pid, unsigned long addr,
 			   unsigned long data);
 
@@ -885,7 +891,7 @@ asmlinkage long sys_seccomp(unsigned int op, unsigned int flags,
 			    const char __user *uargs);
 asmlinkage long sys_getrandom(char __user *buf, size_t count,
 			      unsigned int flags);
-asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size);
+asmlinkage long sys_bpf(int cmd, union bpf_attr __user *attr, unsigned int size);
 
 asmlinkage long sys_execveat(int dfd, const char __user *filename,
 			const char __user *const __user *argv,
diff --git a/include/linux/syscore_ops.h b/include/linux/syscore_ops.h
index 27b3b0b..e093dd9 100644
--- a/include/linux/syscore_ops.h
+++ b/include/linux/syscore_ops.h
@@ -16,7 +16,7 @@ struct syscore_ops {
 	int (*suspend)(void);
 	void (*resume)(void);
 	void (*shutdown)(void);
-};
+} __do_const;
 
 extern void register_syscore_ops(struct syscore_ops *ops);
 extern void unregister_syscore_ops(struct syscore_ops *ops);
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index fa7bc29..0d96561 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -39,10 +39,16 @@ typedef int proc_handler (struct ctl_table *ctl, int write,
 
 extern int proc_dostring(struct ctl_table *, int,
 			 void __user *, size_t *, loff_t *);
+extern int proc_dostring_modpriv(struct ctl_table *, int,
+			 void __user *, size_t *, loff_t *);
 extern int proc_dointvec(struct ctl_table *, int,
 			 void __user *, size_t *, loff_t *);
+extern int proc_dointvec_secure(struct ctl_table *, int,
+                     		void __user *, size_t *, loff_t *);
 extern int proc_dointvec_minmax(struct ctl_table *, int,
 				void __user *, size_t *, loff_t *);
+extern int proc_dointvec_minmax_secure(struct ctl_table *, int,
+				       void __user *, size_t *, loff_t *);
 extern int proc_dointvec_jiffies(struct ctl_table *, int,
 				 void __user *, size_t *, loff_t *);
 extern int proc_dointvec_userhz_jiffies(struct ctl_table *, int,
@@ -113,7 +119,8 @@ struct ctl_table
 	struct ctl_table_poll *poll;
 	void *extra1;
 	void *extra2;
-};
+} __do_const __randomize_layout;
+typedef struct ctl_table __no_const ctl_table_no_const;
 
 struct ctl_node {
 	struct rb_node node;
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index c6f0f0d..e663567 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -34,7 +34,8 @@ struct attribute {
 	struct lock_class_key	*key;
 	struct lock_class_key	skey;
 #endif
-};
+} __do_const;
+typedef struct attribute __no_const attribute_no_const;
 
 /**
  *	sysfs_attr_init - initialize a dynamically allocated sysfs attribute
@@ -88,7 +89,8 @@ struct attribute_group {
 						  struct bin_attribute *, int);
 	struct attribute	**attrs;
 	struct bin_attribute	**bin_attrs;
-};
+} __do_const;
+typedef struct attribute_group __no_const attribute_group_no_const;
 
 /**
  * Use these macros to make defining attributes easier. See include/linux/device.h
@@ -162,7 +164,8 @@ struct bin_attribute {
 			 char *, loff_t, size_t);
 	int (*mmap)(struct file *, struct kobject *, struct bin_attribute *attr,
 		    struct vm_area_struct *vma);
-};
+} __do_const;
+typedef struct bin_attribute __no_const bin_attribute_no_const;
 
 /**
  *	sysfs_bin_attr_init - initialize a dynamically allocated bin_attribute
@@ -512,7 +515,7 @@ static inline void sysfs_notify_dirent(struct kernfs_node *kn)
 }
 
 static inline struct kernfs_node *sysfs_get_dirent(struct kernfs_node *parent,
-						   const unsigned char *name)
+						   const char *name)
 {
 	return kernfs_find_and_get(parent, name);
 }
diff --git a/include/linux/sysrq.h b/include/linux/sysrq.h
index 387fa7d..3fcde6b 100644
--- a/include/linux/sysrq.h
+++ b/include/linux/sysrq.h
@@ -16,6 +16,7 @@
 
 #include <linux/errno.h>
 #include <linux/types.h>
+#include <linux/compiler.h>
 
 /* Possible values of bitmask for enabling sysrq functions */
 /* 0x0001 is reserved for enable everything */
@@ -33,7 +34,7 @@ struct sysrq_key_op {
 	char *help_msg;
 	char *action_msg;
 	int enable_mask;
-};
+} __do_const;
 
 #ifdef CONFIG_MAGIC_SYSRQ
 
diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index 7be9b12..66bf0a8 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -68,13 +68,13 @@ struct tcp_fastopen_cookie {
 
 /* This defines a selective acknowledgement block. */
 struct tcp_sack_block_wire {
-	__be32	start_seq;
-	__be32	end_seq;
+	__be32	start_seq __intentional_overflow(-1);
+	__be32	end_seq __intentional_overflow(-1);
 };
 
 struct tcp_sack_block {
-	u32	start_seq;
-	u32	end_seq;
+	u32	start_seq __intentional_overflow(-1);
+	u32	end_seq __intentional_overflow(-1);
 };
 
 /*These are used to set the sack_ok field in struct tcp_options_received */
@@ -162,7 +162,7 @@ struct tcp_sock {
 				 * total number of data segments in.
 				 */
  	u32	rcv_nxt;	/* What we want to receive next 	*/
-	u32	copied_seq;	/* Head of yet unread data		*/
+	u32	copied_seq __intentional_overflow(-1);	/* Head of yet unread data		*/
 	u32	rcv_wup;	/* rcv_nxt on last window update sent	*/
  	u32	snd_nxt;	/* Next sequence we send		*/
 	u32	segs_out;	/* RFC4898 tcpEStatsPerfSegsOut
@@ -270,7 +270,7 @@ struct tcp_sock {
 	u32	delivered;	/* Total data packets delivered incl. rexmits */
 
  	u32	rcv_wnd;	/* Current receiver window		*/
-	u32	write_seq;	/* Tail(+1) of data held in tcp send buffer */
+	u32	write_seq __intentional_overflow(-1);	/* Tail(+1) of data held in tcp send buffer */
 	u32	notsent_lowat;	/* TCP_NOTSENT_LOWAT */
 	u32	pushed_seq;	/* Last pushed seq, required to talk to windows */
 	u32	lost_out;	/* Lost packets			*/
@@ -311,7 +311,7 @@ struct tcp_sock {
 	int	undo_retrans;	/* number of undoable retransmissions. */
 	u32	total_retrans;	/* Total retransmits for entire connection */
 
-	u32	urg_seq;	/* Seq of received urgent pointer */
+	u32	urg_seq __intentional_overflow(-1);	/* Seq of received urgent pointer */
 	unsigned int		keepalive_time;	  /* time before keep alive takes place */
 	unsigned int		keepalive_intvl;  /* time interval between keep alive probes */
 
diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h
index b4c2a48..0a13f65 100644
--- a/include/linux/thread_info.h
+++ b/include/linux/thread_info.h
@@ -146,6 +146,13 @@ static inline bool test_and_clear_restore_sigmask(void)
 #error "no set_restore_sigmask() provided and default one won't work"
 #endif
 
+extern void __check_object_size(const void *ptr, unsigned long n, bool to_user, bool const_size);
+
+static inline void check_object_size(const void *ptr, unsigned long n, bool to_user)
+{
+	__check_object_size(ptr, n, to_user, __builtin_constant_p(n));
+}
+
 #endif	/* __KERNEL__ */
 
 #endif /* _LINUX_THREAD_INFO_H */
diff --git a/include/linux/tty.h b/include/linux/tty.h
index a344420..c3868f9 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -225,7 +225,7 @@ struct tty_port {
 	const struct tty_port_operations *ops;	/* Port operations */
 	spinlock_t		lock;		/* Lock protecting tty field */
 	int			blocked_open;	/* Waiting to open */
-	int			count;		/* Usage count */
+	atomic_t		count;		/* Usage count */
 	wait_queue_head_t	open_wait;	/* Open waiters */
 	wait_queue_head_t	delta_msr_wait;	/* Modem status change */
 	unsigned long		flags;		/* TTY flags ASY_*/
@@ -313,7 +313,7 @@ struct tty_struct {
 	/* If the tty has a pending do_SAK, queue it here - akpm */
 	struct work_struct SAK_work;
 	struct tty_port *port;
-};
+} __randomize_layout;
 
 /* Each of a tty's open files has private_data pointing to tty_file_private */
 struct tty_file_private {
@@ -561,7 +561,7 @@ extern int tty_port_open(struct tty_port *port,
 				struct tty_struct *tty, struct file *filp);
 static inline int tty_port_users(struct tty_port *port)
 {
-	return port->count + port->blocked_open;
+	return atomic_read(&port->count) + port->blocked_open;
 }
 
 extern int tty_register_ldisc(int disc, struct tty_ldisc_ops *new_ldisc);
diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h
index b742b5e..76dc1fa 100644
--- a/include/linux/tty_driver.h
+++ b/include/linux/tty_driver.h
@@ -291,7 +291,7 @@ struct tty_operations {
 	void (*poll_put_char)(struct tty_driver *driver, int line, char ch);
 #endif
 	const struct file_operations *proc_fops;
-};
+} __do_const __randomize_layout;
 
 struct tty_driver {
 	int	magic;		/* magic number for this structure */
@@ -325,7 +325,7 @@ struct tty_driver {
 
 	const struct tty_operations *ops;
 	struct list_head tty_drivers;
-};
+} __randomize_layout;
 
 extern struct list_head tty_drivers;
 
diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h
index 3971cf0..7704c48 100644
--- a/include/linux/tty_ldisc.h
+++ b/include/linux/tty_ldisc.h
@@ -202,7 +202,7 @@ struct tty_ldisc_ops {
 
 	struct  module *owner;
 
-	int refcount;
+	atomic_t refcount;
 };
 
 struct tty_ldisc {
diff --git a/include/linux/types.h b/include/linux/types.h
index 70dd3df..7950943 100644
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -160,8 +160,10 @@ typedef unsigned __bitwise__ oom_flags_t;
 
 #ifdef CONFIG_PHYS_ADDR_T_64BIT
 typedef u64 phys_addr_t;
+#define RESOURCE_SIZE_MAX ULLONG_MAX
 #else
 typedef u32 phys_addr_t;
+#define RESOURCE_SIZE_MAX ULONG_MAX
 #endif
 
 typedef phys_addr_t resource_size_t;
@@ -176,10 +178,26 @@ typedef struct {
 	int counter;
 } atomic_t;
 
+#ifdef CONFIG_PAX_REFCOUNT
+typedef struct {
+	int counter;
+} atomic_unchecked_t;
+#else
+typedef atomic_t atomic_unchecked_t;
+#endif
+
 #ifdef CONFIG_64BIT
 typedef struct {
 	long counter;
 } atomic64_t;
+
+#ifdef CONFIG_PAX_REFCOUNT
+typedef struct {
+	long counter;
+} atomic64_unchecked_t;
+#else
+typedef atomic64_t atomic64_unchecked_t;
+#endif
 #endif
 
 struct list_head {
diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h
index 3495578..f479218 100644
--- a/include/linux/uaccess.h
+++ b/include/linux/uaccess.h
@@ -109,7 +109,7 @@ extern long strncpy_from_unsafe(char *dst, const void *unsafe_addr, long count);
  * Returns 0 on success, or -EFAULT.
  */
 #define probe_kernel_address(addr, retval)		\
-	probe_kernel_read(&retval, addr, sizeof(retval))
+	probe_kernel_read(&(retval), addr, sizeof(retval))
 
 #ifndef user_access_begin
 #define user_access_begin() do { } while (0)
diff --git a/include/linux/uidgid.h b/include/linux/uidgid.h
index 0383552..595969a 100644
--- a/include/linux/uidgid.h
+++ b/include/linux/uidgid.h
@@ -187,4 +187,10 @@ static inline bool kgid_has_mapping(struct user_namespace *ns, kgid_t gid)
 
 #endif /* CONFIG_USER_NS */
 
+#define GR_GLOBAL_UID(x) from_kuid_munged(&init_user_ns, (x))
+#define GR_GLOBAL_GID(x) from_kgid_munged(&init_user_ns, (x))
+#define gr_is_global_root(x) uid_eq((x), GLOBAL_ROOT_UID)
+#define gr_is_global_nonroot(x) (!uid_eq((x), GLOBAL_ROOT_UID))
+#define gr_is_global_nonroot_gid(x) (!gid_eq((x), GLOBAL_ROOT_GID))
+
 #endif /* _LINUX_UIDGID_H */
diff --git a/include/linux/uio_driver.h b/include/linux/uio_driver.h
index 32c0e83..671eb35 100644
--- a/include/linux/uio_driver.h
+++ b/include/linux/uio_driver.h
@@ -67,7 +67,7 @@ struct uio_device {
         struct module           *owner;
         struct device           *dev;
         int                     minor;
-        atomic_t                event;
+        atomic_unchecked_t      event;
         struct fasync_struct    *async_queue;
         wait_queue_head_t       wait;
         struct uio_info         *info;
diff --git a/include/linux/unaligned/access_ok.h b/include/linux/unaligned/access_ok.h
index 33383ca..44211d6 100644
--- a/include/linux/unaligned/access_ok.h
+++ b/include/linux/unaligned/access_ok.h
@@ -4,34 +4,34 @@
 #include <linux/kernel.h>
 #include <asm/byteorder.h>
 
-static __always_inline u16 get_unaligned_le16(const void *p)
+static __always_inline u16 __intentional_overflow(-1) get_unaligned_le16(const void *p)
 {
-	return le16_to_cpup((__le16 *)p);
+	return le16_to_cpup((const __le16 *)p);
 }
 
-static __always_inline u32 get_unaligned_le32(const void *p)
+static __always_inline u32 __intentional_overflow(-1) get_unaligned_le32(const void *p)
 {
-	return le32_to_cpup((__le32 *)p);
+	return le32_to_cpup((const __le32 *)p);
 }
 
-static __always_inline u64 get_unaligned_le64(const void *p)
+static __always_inline u64 __intentional_overflow(-1) get_unaligned_le64(const void *p)
 {
-	return le64_to_cpup((__le64 *)p);
+	return le64_to_cpup((const __le64 *)p);
 }
 
-static __always_inline u16 get_unaligned_be16(const void *p)
+static __always_inline u16 __intentional_overflow(-1) get_unaligned_be16(const void *p)
 {
-	return be16_to_cpup((__be16 *)p);
+	return be16_to_cpup((const __be16 *)p);
 }
 
-static __always_inline u32 get_unaligned_be32(const void *p)
+static __always_inline u32 __intentional_overflow(-1) get_unaligned_be32(const void *p)
 {
-	return be32_to_cpup((__be32 *)p);
+	return be32_to_cpup((const __be32 *)p);
 }
 
-static __always_inline u64 get_unaligned_be64(const void *p)
+static __always_inline u64 __intentional_overflow(-1) get_unaligned_be64(const void *p)
 {
-	return be64_to_cpup((__be64 *)p);
+	return be64_to_cpup((const __be64 *)p);
 }
 
 static __always_inline void put_unaligned_le16(u16 val, void *p)
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 818bf70..3925f6b 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -370,7 +370,7 @@ struct usb_bus {
 					 * with the URB_SHORT_NOT_OK flag set.
 					 */
 	unsigned no_sg_constraint:1;	/* no sg constraint */
-	unsigned sg_tablesize;		/* 0 or largest number of sg list entries */
+	unsigned short sg_tablesize;	/* 0 or largest number of sg list entries */
 
 	int devnum_next;		/* Next open device number in
 					 * round-robin allocation */
@@ -599,7 +599,7 @@ struct usb_device {
 	int maxchild;
 
 	u32 quirks;
-	atomic_t urbnum;
+	atomic_unchecked_t urbnum;
 
 	unsigned long active_duration;
 
@@ -1793,10 +1793,10 @@ void usb_sg_wait(struct usb_sg_request *io);
 
 /* NOTE:  these are not the standard USB_ENDPOINT_XFER_* values!! */
 /* (yet ... they're the values used by usbfs) */
-#define PIPE_ISOCHRONOUS		0
-#define PIPE_INTERRUPT			1
-#define PIPE_CONTROL			2
-#define PIPE_BULK			3
+#define PIPE_ISOCHRONOUS		0U
+#define PIPE_INTERRUPT			1U
+#define PIPE_CONTROL			2U
+#define PIPE_BULK			3U
 
 #define usb_pipein(pipe)	((pipe) & USB_DIR_IN)
 #define usb_pipeout(pipe)	(!usb_pipein(pipe))
diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index 66fc137..9602956 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -24,6 +24,7 @@
 #include <linux/rwsem.h>
 #include <linux/interrupt.h>
 #include <linux/idr.h>
+#include <scsi/scsi_host.h>
 
 #define MAX_TOPO_LEVEL		6
 
diff --git a/include/linux/usb/renesas_usbhs.h b/include/linux/usb/renesas_usbhs.h
index 00a47d0..ed482765 100644
--- a/include/linux/usb/renesas_usbhs.h
+++ b/include/linux/usb/renesas_usbhs.h
@@ -39,7 +39,7 @@ enum {
  */
 struct renesas_usbhs_driver_callback {
 	int (*notify_hotplug)(struct platform_device *pdev);
-};
+} __no_const;
 
 /*
  * callback functions for platform
diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h
index 8297e5b..0dfae27 100644
--- a/include/linux/user_namespace.h
+++ b/include/linux/user_namespace.h
@@ -39,7 +39,7 @@ struct user_namespace {
 	struct key		*persistent_keyring_register;
 	struct rw_semaphore	persistent_keyring_register_sem;
 #endif
-};
+} __randomize_layout;
 
 extern struct user_namespace init_user_ns;
 
diff --git a/include/linux/utsname.h b/include/linux/utsname.h
index 5093f58..c103e58 100644
--- a/include/linux/utsname.h
+++ b/include/linux/utsname.h
@@ -25,7 +25,7 @@ struct uts_namespace {
 	struct new_utsname name;
 	struct user_namespace *user_ns;
 	struct ns_common ns;
-};
+} __randomize_layout;
 extern struct uts_namespace init_uts_ns;
 
 #ifdef CONFIG_UTS_NS
diff --git a/include/linux/vermagic.h b/include/linux/vermagic.h
index 6f8fbcf..4efc177 100644
--- a/include/linux/vermagic.h
+++ b/include/linux/vermagic.h
@@ -25,9 +25,42 @@
 #define MODULE_ARCH_VERMAGIC ""
 #endif
 
+#ifdef CONFIG_PAX_REFCOUNT
+#define MODULE_PAX_REFCOUNT "REFCOUNT "
+#else
+#define MODULE_PAX_REFCOUNT ""
+#endif
+
+#ifdef CONSTIFY_PLUGIN
+#define MODULE_CONSTIFY_PLUGIN "CONSTIFY_PLUGIN "
+#else
+#define MODULE_CONSTIFY_PLUGIN ""
+#endif
+
+#ifdef STACKLEAK_PLUGIN
+#define MODULE_STACKLEAK_PLUGIN "STACKLEAK_PLUGIN "
+#else
+#define MODULE_STACKLEAK_PLUGIN ""
+#endif
+
+#ifdef RANDSTRUCT_PLUGIN
+#include <generated/randomize_layout_hash.h>
+#define MODULE_RANDSTRUCT_PLUGIN "RANDSTRUCT_PLUGIN_" RANDSTRUCT_HASHED_SEED
+#else
+#define MODULE_RANDSTRUCT_PLUGIN
+#endif
+
+#ifdef CONFIG_GRKERNSEC
+#define MODULE_GRSEC "GRSEC "
+#else
+#define MODULE_GRSEC ""
+#endif
+
 #define VERMAGIC_STRING 						\
 	UTS_RELEASE " "							\
 	MODULE_VERMAGIC_SMP MODULE_VERMAGIC_PREEMPT 			\
 	MODULE_VERMAGIC_MODULE_UNLOAD MODULE_VERMAGIC_MODVERSIONS	\
-	MODULE_ARCH_VERMAGIC
+	MODULE_ARCH_VERMAGIC						\
+	MODULE_PAX_REFCOUNT MODULE_CONSTIFY_PLUGIN MODULE_STACKLEAK_PLUGIN \
+	MODULE_GRSEC MODULE_RANDSTRUCT_PLUGIN
 
diff --git a/include/linux/vga_switcheroo.h b/include/linux/vga_switcheroo.h
index b39a5f3..3f5115a 100644
--- a/include/linux/vga_switcheroo.h
+++ b/include/linux/vga_switcheroo.h
@@ -169,9 +169,9 @@ enum vga_switcheroo_state vga_switcheroo_get_client_state(struct pci_dev *dev);
 
 void vga_switcheroo_set_dynamic_switch(struct pci_dev *pdev, enum vga_switcheroo_state dynamic);
 
-int vga_switcheroo_init_domain_pm_ops(struct device *dev, struct dev_pm_domain *domain);
+int vga_switcheroo_init_domain_pm_ops(struct device *dev, dev_pm_domain_no_const *domain);
 void vga_switcheroo_fini_domain_pm_ops(struct device *dev);
-int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, struct dev_pm_domain *domain);
+int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, dev_pm_domain_no_const *domain);
 #else
 
 static inline void vga_switcheroo_unregister_client(struct pci_dev *dev) {}
@@ -192,9 +192,9 @@ static inline enum vga_switcheroo_state vga_switcheroo_get_client_state(struct p
 
 static inline void vga_switcheroo_set_dynamic_switch(struct pci_dev *pdev, enum vga_switcheroo_state dynamic) {}
 
-static inline int vga_switcheroo_init_domain_pm_ops(struct device *dev, struct dev_pm_domain *domain) { return -EINVAL; }
+static inline int vga_switcheroo_init_domain_pm_ops(struct device *dev, dev_pm_domain_no_const *domain) { return -EINVAL; }
 static inline void vga_switcheroo_fini_domain_pm_ops(struct device *dev) {}
-static inline int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, struct dev_pm_domain *domain) { return -EINVAL; }
+static inline int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, dev_pm_domain_no_const *domain) { return -EINVAL; }
 
 #endif
 #endif /* _LINUX_VGA_SWITCHEROO_H_ */
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index d1f1d33..10415f2 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -17,6 +17,14 @@ struct vm_area_struct;		/* vma defining user mapping in mm_types.h */
 #define VM_UNINITIALIZED	0x00000020	/* vm_struct is not fully initialized */
 #define VM_NO_GUARD		0x00000040      /* don't add guard page */
 #define VM_KASAN		0x00000080      /* has allocated kasan shadow memory */
+
+#if defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC)
+#define VM_KERNEXEC		0x00000100	/* allocate from executable kernel memory range */
+#endif
+
+#define VM_USERCOPY		0x00000200	/* allocation intended for copies to userland */
+
+
 /* bits [20..32] reserved for arch specific ioremap internals */
 
 /*
@@ -66,6 +74,7 @@ static inline void vmalloc_init(void)
 #endif
 
 extern void *vmalloc(unsigned long size);
+extern void *vmalloc_usercopy(unsigned long size);
 extern void *vzalloc(unsigned long size);
 extern void *vmalloc_user(unsigned long size);
 extern void *vmalloc_node(unsigned long size, int node);
@@ -85,6 +94,10 @@ extern void *vmap(struct page **pages, unsigned int count,
 			unsigned long flags, pgprot_t prot);
 extern void vunmap(const void *addr);
 
+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
+extern void unmap_process_stacks(struct task_struct *task);
+#endif
+
 extern int remap_vmalloc_range_partial(struct vm_area_struct *vma,
 				       unsigned long uaddr, void *kaddr,
 				       unsigned long size);
@@ -149,7 +162,7 @@ extern void free_vm_area(struct vm_struct *area);
 
 /* for /dev/kmem */
 extern long vread(char *buf, char *addr, unsigned long count);
-extern long vwrite(char *buf, char *addr, unsigned long count);
+extern long vwrite(char *buf, char *addr, unsigned long count) __size_overflow(3);
 
 /*
  *	Internals.  Dont't use..
diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
index 73fae8c..61f415d 100644
--- a/include/linux/vmstat.h
+++ b/include/linux/vmstat.h
@@ -108,18 +108,18 @@ static inline void vm_events_fold_cpu(int cpu)
 /*
  * Zone based page accounting with per cpu differentials.
  */
-extern atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS];
+extern atomic_long_unchecked_t vm_stat[NR_VM_ZONE_STAT_ITEMS];
 
 static inline void zone_page_state_add(long x, struct zone *zone,
 				 enum zone_stat_item item)
 {
-	atomic_long_add(x, &zone->vm_stat[item]);
-	atomic_long_add(x, &vm_stat[item]);
+	atomic_long_add_unchecked(x, &zone->vm_stat[item]);
+	atomic_long_add_unchecked(x, &vm_stat[item]);
 }
 
-static inline unsigned long global_page_state(enum zone_stat_item item)
+static inline unsigned long __intentional_overflow(-1) global_page_state(enum zone_stat_item item)
 {
-	long x = atomic_long_read(&vm_stat[item]);
+	long x = atomic_long_read_unchecked(&vm_stat[item]);
 #ifdef CONFIG_SMP
 	if (x < 0)
 		x = 0;
@@ -127,10 +127,10 @@ static inline unsigned long global_page_state(enum zone_stat_item item)
 	return x;
 }
 
-static inline unsigned long zone_page_state(struct zone *zone,
+static inline unsigned long __intentional_overflow(-1) zone_page_state(struct zone *zone,
 					enum zone_stat_item item)
 {
-	long x = atomic_long_read(&zone->vm_stat[item]);
+	long x = atomic_long_read_unchecked(&zone->vm_stat[item]);
 #ifdef CONFIG_SMP
 	if (x < 0)
 		x = 0;
@@ -147,7 +147,7 @@ static inline unsigned long zone_page_state(struct zone *zone,
 static inline unsigned long zone_page_state_snapshot(struct zone *zone,
 					enum zone_stat_item item)
 {
-	long x = atomic_long_read(&zone->vm_stat[item]);
+	long x = atomic_long_read_unchecked(&zone->vm_stat[item]);
 
 #ifdef CONFIG_SMP
 	int cpu;
@@ -213,14 +213,14 @@ static inline void __mod_zone_page_state(struct zone *zone,
 
 static inline void __inc_zone_state(struct zone *zone, enum zone_stat_item item)
 {
-	atomic_long_inc(&zone->vm_stat[item]);
-	atomic_long_inc(&vm_stat[item]);
+	atomic_long_inc_unchecked(&zone->vm_stat[item]);
+	atomic_long_inc_unchecked(&vm_stat[item]);
 }
 
 static inline void __dec_zone_state(struct zone *zone, enum zone_stat_item item)
 {
-	atomic_long_dec(&zone->vm_stat[item]);
-	atomic_long_dec(&vm_stat[item]);
+	atomic_long_dec_unchecked(&zone->vm_stat[item]);
+	atomic_long_dec_unchecked(&vm_stat[item]);
 }
 
 static inline void __inc_zone_page_state(struct page *page,
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index d0b5ca5..c13529b 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -278,8 +278,9 @@ static inline void inode_detach_wb(struct inode *inode)
 }
 
 static inline void wbc_attach_and_unlock_inode(struct writeback_control *wbc,
+					       struct inode *inode) __releases(&inode->i_lock);
+static inline void wbc_attach_and_unlock_inode(struct writeback_control *wbc,
 					       struct inode *inode)
-	__releases(&inode->i_lock)
 {
 	spin_unlock(&inode->i_lock);
 }
diff --git a/include/linux/xattr.h b/include/linux/xattr.h
index 4457541..cb0d355 100644
--- a/include/linux/xattr.h
+++ b/include/linux/xattr.h
@@ -34,7 +34,7 @@ struct xattr_handler {
 	int (*set)(const struct xattr_handler *, struct dentry *dentry,
 		   const char *name, const void *buffer, size_t size,
 		   int flags);
-};
+} __do_const;
 
 const char *xattr_full_name(const struct xattr_handler *, const char *);
 
@@ -45,6 +45,9 @@ struct xattr {
 };
 
 ssize_t xattr_getsecurity(struct inode *, const char *, void *, size_t);
+#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
+ssize_t pax_getxattr(struct dentry *, void *, size_t);
+#endif
 ssize_t vfs_getxattr(struct dentry *, const char *, void *, size_t);
 ssize_t vfs_listxattr(struct dentry *d, char *list, size_t size);
 int __vfs_setxattr_noperm(struct dentry *, const char *, const void *, size_t, int);
diff --git a/include/linux/zlib.h b/include/linux/zlib.h
index 92dbbd3..13ab0b3 100644
--- a/include/linux/zlib.h
+++ b/include/linux/zlib.h
@@ -31,6 +31,7 @@
 #define _ZLIB_H
 
 #include <linux/zconf.h>
+#include <linux/compiler.h>
 
 /* zlib deflate based on ZLIB_VERSION "1.1.3" */
 /* zlib inflate based on ZLIB_VERSION "1.2.3" */
@@ -179,7 +180,7 @@ typedef z_stream *z_streamp;
 
                         /* basic functions */
 
-extern int zlib_deflate_workspacesize (int windowBits, int memLevel);
+extern int zlib_deflate_workspacesize (int windowBits, int memLevel) __intentional_overflow(0);
 /*
    Returns the number of bytes that needs to be allocated for a per-
    stream workspace with the specified parameters.  A pointer to this
diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h
index 76056ab..b3a839b 100644
--- a/include/media/v4l2-dev.h
+++ b/include/media/v4l2-dev.h
@@ -74,7 +74,7 @@ struct v4l2_file_operations {
 	int (*mmap) (struct file *, struct vm_area_struct *);
 	int (*open) (struct file *);
 	int (*release) (struct file *);
-};
+} __do_const;
 
 /*
  * Newer version of video_device, handled by videodev2.c
diff --git a/include/media/v4l2-device.h b/include/media/v4l2-device.h
index 9c58157..d86ebf5 100644
--- a/include/media/v4l2-device.h
+++ b/include/media/v4l2-device.h
@@ -93,7 +93,7 @@ int __must_check v4l2_device_register(struct device *dev, struct v4l2_device *v4
    this function returns 0. If the name ends with a digit (e.g. cx18),
    then the name will be set to cx18-0 since cx180 looks really odd. */
 int v4l2_device_set_name(struct v4l2_device *v4l2_dev, const char *basename,
-						atomic_t *instance);
+						atomic_unchecked_t *instance);
 
 /* Set v4l2_dev->dev to NULL. Call when the USB parent disconnects.
    Since the parent disappears this ensures that v4l2_dev doesn't have an
diff --git a/include/net/9p/transport.h b/include/net/9p/transport.h
index 5122b5e..598b440 100644
--- a/include/net/9p/transport.h
+++ b/include/net/9p/transport.h
@@ -62,7 +62,7 @@ struct p9_trans_module {
 	int (*cancelled)(struct p9_client *, struct p9_req_t *req);
 	int (*zc_request)(struct p9_client *, struct p9_req_t *,
 			  struct iov_iter *, struct iov_iter *, int , int, int);
-};
+} __do_const;
 
 void v9fs_register_trans(struct p9_trans_module *m);
 void v9fs_unregister_trans(struct p9_trans_module *m);
diff --git a/include/net/af_unix.h b/include/net/af_unix.h
index 9b4c418..f3ff431 100644
--- a/include/net/af_unix.h
+++ b/include/net/af_unix.h
@@ -36,7 +36,7 @@ struct unix_skb_parms {
 	u32			secid;		/* Security ID		*/
 #endif
 	u32			consumed;
-};
+} __randomize_layout;
 
 #define UNIXCB(skb) 	(*(struct unix_skb_parms *)&((skb)->cb))
 
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 5ee3c68..54f883a 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -619,7 +619,7 @@ struct l2cap_ops {
 	struct sk_buff		*(*alloc_skb) (struct l2cap_chan *chan,
 					       unsigned long hdr_len,
 					       unsigned long len, int nb);
-};
+} __do_const;
 
 struct l2cap_conn {
 	struct hci_conn		*hcon;
diff --git a/include/net/bonding.h b/include/net/bonding.h
index 791800d..db75e5f 100644
--- a/include/net/bonding.h
+++ b/include/net/bonding.h
@@ -702,7 +702,7 @@ extern struct rtnl_link_ops bond_link_ops;
 
 static inline void bond_tx_drop(struct net_device *dev, struct sk_buff *skb)
 {
-	atomic_long_inc(&dev->tx_dropped);
+	atomic_long_inc_unchecked(&dev->tx_dropped);
 	dev_kfree_skb_any(skb);
 }
 
diff --git a/include/net/caif/cfctrl.h b/include/net/caif/cfctrl.h
index f2ae33d..c457cf0 100644
--- a/include/net/caif/cfctrl.h
+++ b/include/net/caif/cfctrl.h
@@ -52,7 +52,7 @@ struct cfctrl_rsp {
 	void (*radioset_rsp)(void);
 	void (*reject_rsp)(struct cflayer *layer, u8 linkid,
 				struct cflayer *client_layer);
-};
+} __no_const;
 
 /* Link Setup Parameters for CAIF-Links. */
 struct cfctrl_link_param {
@@ -101,8 +101,8 @@ struct cfctrl_request_info {
 struct cfctrl {
 	struct cfsrvl serv;
 	struct cfctrl_rsp res;
-	atomic_t req_seq_no;
-	atomic_t rsp_seq_no;
+	atomic_unchecked_t req_seq_no;
+	atomic_unchecked_t rsp_seq_no;
 	struct list_head list;
 	/* Protects from simultaneous access to first_req list */
 	spinlock_t info_list_lock;
diff --git a/include/net/cfg80211-wext.h b/include/net/cfg80211-wext.h
index 25baddc..f9a1374 100644
--- a/include/net/cfg80211-wext.h
+++ b/include/net/cfg80211-wext.h
@@ -22,34 +22,34 @@
  */
 int cfg80211_wext_giwname(struct net_device *dev,
 			  struct iw_request_info *info,
-			  char *name, char *extra);
+			  union iwreq_data *wrqu, char *extra);
 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
-			  u32 *mode, char *extra);
+			  union iwreq_data *wrqu, char *extra);
 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
-			  u32 *mode, char *extra);
+			  union iwreq_data *wrqu, char *extra);
 int cfg80211_wext_siwscan(struct net_device *dev,
 			  struct iw_request_info *info,
 			  union iwreq_data *wrqu, char *extra);
 int cfg80211_wext_giwscan(struct net_device *dev,
 			  struct iw_request_info *info,
-			  struct iw_point *data, char *extra);
+			  union iwreq_data *wrqu, char *extra);
 int cfg80211_wext_giwrange(struct net_device *dev,
 			   struct iw_request_info *info,
-			   struct iw_point *data, char *extra);
+			   union iwreq_data *wrqu, char *extra);
 int cfg80211_wext_siwrts(struct net_device *dev,
 			 struct iw_request_info *info,
-			 struct iw_param *rts, char *extra);
+			 union iwreq_data *wrqu, char *extra);
 int cfg80211_wext_giwrts(struct net_device *dev,
 			 struct iw_request_info *info,
-			 struct iw_param *rts, char *extra);
+			 union iwreq_data *wrqu, char *extra);
 int cfg80211_wext_siwfrag(struct net_device *dev,
 			  struct iw_request_info *info,
-			  struct iw_param *frag, char *extra);
+			  union iwreq_data *wrqu, char *extra);
 int cfg80211_wext_giwfrag(struct net_device *dev,
 			  struct iw_request_info *info,
-			  struct iw_param *frag, char *extra);
+			  union iwreq_data *wrqu, char *extra);
 int cfg80211_wext_giwretry(struct net_device *dev,
 			   struct iw_request_info *info,
-			   struct iw_param *retry, char *extra);
+			   union iwreq_data *wrqu, char *extra);
 
 #endif /* __NET_CFG80211_WEXT_H */
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index 171cd76..15666d6 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -341,7 +341,7 @@ struct wpan_dev {
 	/* MAC BSN field */
 	atomic_t bsn;
 	/* MAC DSN field */
-	atomic_t dsn;
+	atomic_unchecked_t dsn;
 
 	u8 min_be;
 	u8 max_be;
diff --git a/include/net/fib_rules.h b/include/net/fib_rules.h
index 59160de..f4dbdab 100644
--- a/include/net/fib_rules.h
+++ b/include/net/fib_rules.h
@@ -7,6 +7,7 @@
 #include <linux/fib_rules.h>
 #include <net/flow.h>
 #include <net/rtnetlink.h>
+#include <net/ip6_fib.h>
 
 struct fib_rule {
 	struct list_head	list;
@@ -33,7 +34,7 @@ struct fib_rule {
 };
 
 struct fib_lookup_arg {
-	void			*lookup_ptr;
+	pol_lookup_t		lookup_ptr;
 	void			*result;
 	struct fib_rule		*rule;
 	int			flags;
diff --git a/include/net/flow.h b/include/net/flow.h
index d47ef4b..ab39dc5 100644
--- a/include/net/flow.h
+++ b/include/net/flow.h
@@ -243,7 +243,7 @@ void flow_cache_fini(struct net *net);
 
 void flow_cache_flush(struct net *net);
 void flow_cache_flush_deferred(struct net *net);
-extern atomic_t flow_cache_genid;
+extern atomic_unchecked_t flow_cache_genid;
 
 __u32 __get_hash_from_flowi6(const struct flowi6 *fl6, struct flow_keys *keys);
 
diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index 8d4608c..460372d 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -128,7 +128,7 @@ struct genl_ops {
 	u8			cmd;
 	u8			internal_flags;
 	u8			flags;
-};
+} __do_const;
 
 int __genl_register_family(struct genl_family *family);
 
diff --git a/include/net/gro_cells.h b/include/net/gro_cells.h
index cf6c745..8a0cf00 100644
--- a/include/net/gro_cells.h
+++ b/include/net/gro_cells.h
@@ -27,7 +27,7 @@ static inline void gro_cells_receive(struct gro_cells *gcells, struct sk_buff *s
 	cell = this_cpu_ptr(gcells->cells);
 
 	if (skb_queue_len(&cell->napi_skbs) > netdev_max_backlog) {
-		atomic_long_inc(&dev->rx_dropped);
+		atomic_long_inc_unchecked(&dev->rx_dropped);
 		kfree_skb(skb);
 		return;
 	}
diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h
index 49dcad4..6d2c708 100644
--- a/include/net/inet_connection_sock.h
+++ b/include/net/inet_connection_sock.h
@@ -65,7 +65,7 @@ struct inet_connection_sock_af_ops {
 	int	    (*bind_conflict)(const struct sock *sk,
 				     const struct inet_bind_bucket *tb, bool relax);
 	void	    (*mtu_reduced)(struct sock *sk);
-};
+} __do_const;
 
 /** inet_connection_sock - INET connection oriented sock
  *
diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index 012b1f9..6467f81 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -44,7 +44,7 @@
 struct ip_options {
 	__be32		faddr;
 	__be32		nexthop;
-	unsigned char	optlen;
+	unsigned char	optlen __intentional_overflow(0);
 	unsigned char	srr;
 	unsigned char	rr;
 	unsigned char	ts;
diff --git a/include/net/inetpeer.h b/include/net/inetpeer.h
index 235c781..160d4a3 100644
--- a/include/net/inetpeer.h
+++ b/include/net/inetpeer.h
@@ -52,7 +52,7 @@ struct inet_peer {
 	 */
 	union {
 		struct {
-			atomic_t			rid;		/* Frag reception counter */
+			atomic_unchecked_t		rid;		/* Frag reception counter */
 		};
 		struct rcu_head         rcu;
 		struct inet_peer	*gc_next;
diff --git a/include/net/ip.h b/include/net/ip.h
index fad74d3..bb36af9 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -326,7 +326,7 @@ static inline unsigned int ip_skb_dst_mtu(const struct sk_buff *skb)
 	return min(skb_dst(skb)->dev->mtu, IP_MAX_MTU);
 }
 
-u32 ip_idents_reserve(u32 hash, int segs);
+u32 ip_idents_reserve(u32 hash, int segs) __intentional_overflow(-1);
 void __ip_select_ident(struct net *net, struct iphdr *iph, int segs);
 
 static inline void ip_select_ident_segs(struct net *net, struct sk_buff *skb,
diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
index 4079fc1..cb82cad 100644
--- a/include/net/ip_fib.h
+++ b/include/net/ip_fib.h
@@ -174,7 +174,7 @@ __be32 fib_info_update_nh_saddr(struct net *net, struct fib_nh *nh);
 
 #define FIB_RES_SADDR(net, res)				\
 	((FIB_RES_NH(res).nh_saddr_genid ==		\
-	  atomic_read(&(net)->ipv4.dev_addr_genid)) ?	\
+	  atomic_read_unchecked(&(net)->ipv4.dev_addr_genid)) ?	\
 	 FIB_RES_NH(res).nh_saddr :			\
 	 fib_info_update_nh_saddr((net), &FIB_RES_NH(res)))
 #define FIB_RES_GW(res)			(FIB_RES_NH(res).nh_gw)
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index a6cc576..d1a5fcb 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -543,7 +543,7 @@ struct ip_vs_conn {
 	struct ip_vs_conn       *control;       /* Master control connection */
 	atomic_t                n_control;      /* Number of controlled ones */
 	struct ip_vs_dest       *dest;          /* real server */
-	atomic_t                in_pkts;        /* incoming packet counter */
+	atomic_unchecked_t      in_pkts;        /* incoming packet counter */
 
 	/* Packet transmitter for different forwarding methods.  If it
 	 * mangles the packet, it must return NF_DROP or better NF_STOLEN,
@@ -664,7 +664,7 @@ struct ip_vs_dest {
 	__be16			port;		/* port number of the server */
 	union nf_inet_addr	addr;		/* IP address of the server */
 	volatile unsigned int	flags;		/* dest status flags */
-	atomic_t		conn_flags;	/* flags to copy to conn */
+	atomic_unchecked_t	conn_flags;	/* flags to copy to conn */
 	atomic_t		weight;		/* server weight */
 
 	atomic_t		refcnt;		/* reference counter */
@@ -924,11 +924,11 @@ struct netns_ipvs {
 	/* ip_vs_lblc */
 	int			sysctl_lblc_expiration;
 	struct ctl_table_header	*lblc_ctl_header;
-	struct ctl_table	*lblc_ctl_table;
+	ctl_table_no_const	*lblc_ctl_table;
 	/* ip_vs_lblcr */
 	int			sysctl_lblcr_expiration;
 	struct ctl_table_header	*lblcr_ctl_header;
-	struct ctl_table	*lblcr_ctl_table;
+	ctl_table_no_const	*lblcr_ctl_table;
 	/* ip_vs_est */
 	struct list_head	est_list;	/* estimator list */
 	spinlock_t		est_lock;
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 1be050a..472c511 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -775,7 +775,7 @@ static inline __be32 ip6_make_flowlabel(struct net *net, struct sk_buff *skb,
 	 * to minimize possbility that any useful information to an
 	 * attacker is leaked. Only lower 20 bits are relevant.
 	 */
-	rol32(hash, 16);
+	hash = rol32(hash, 16);
 
 	flowlabel = (__force __be32)hash & IPV6_FLOWLABEL_MASK;
 
diff --git a/include/net/irda/ircomm_tty.h b/include/net/irda/ircomm_tty.h
index 8d4f588..2e37ad2 100644
--- a/include/net/irda/ircomm_tty.h
+++ b/include/net/irda/ircomm_tty.h
@@ -33,6 +33,7 @@
 #include <linux/termios.h>
 #include <linux/timer.h>
 #include <linux/tty.h>		/* struct tty_struct */
+#include <asm/local.h>
 
 #include <net/irda/irias_object.h>
 #include <net/irda/ircomm_core.h>
diff --git a/include/net/irda/irias_object.h b/include/net/irda/irias_object.h
index 83f7808..a925cf8 100644
--- a/include/net/irda/irias_object.h
+++ b/include/net/irda/irias_object.h
@@ -83,7 +83,7 @@ void irias_insert_object(struct ias_object *obj);
 int  irias_delete_object(struct ias_object *obj);
 int  irias_delete_attrib(struct ias_object *obj, struct ias_attrib *attrib,
 			 int cleanobject);
-void __irias_delete_object(struct ias_object *obj);
+void __irias_delete_object(void *_obj);
 
 void irias_add_integer_attrib(struct ias_object *obj, char *name, int value,
 			      int user);
diff --git a/include/net/irda/irlmp.h b/include/net/irda/irlmp.h
index f132924..f80b01d 100644
--- a/include/net/irda/irlmp.h
+++ b/include/net/irda/irlmp.h
@@ -194,6 +194,7 @@ struct irlmp_cb {
 /* Prototype declarations */
 int  irlmp_init(void);
 void irlmp_cleanup(void);
+void irlmp_kfree(void *arg);
 struct lsap_cb *irlmp_open_lsap(__u8 slsap, notify_t *notify, __u8 pid);
 void irlmp_close_lsap( struct lsap_cb *self);
 
diff --git a/include/net/irda/irlmp_event.h b/include/net/irda/irlmp_event.h
index 9e4ec17..c3247bb 100644
--- a/include/net/irda/irlmp_event.h
+++ b/include/net/irda/irlmp_event.h
@@ -82,9 +82,9 @@ typedef enum {
 extern const char *const irlmp_state[];
 extern const char *const irlsap_state[];
 
-void irlmp_watchdog_timer_expired(void *data);
-void irlmp_discovery_timer_expired(void *data);
-void irlmp_idle_timer_expired(void *data);
+void irlmp_watchdog_timer_expired(unsigned long data);
+void irlmp_discovery_timer_expired(unsigned long data);
+void irlmp_idle_timer_expired(unsigned long data);
 
 void irlmp_do_lap_event(struct lap_cb *self, IRLMP_EVENT event, 
 			struct sk_buff *skb);
diff --git a/include/net/irda/timer.h b/include/net/irda/timer.h
index cb2615c..8223ae7 100644
--- a/include/net/irda/timer.h
+++ b/include/net/irda/timer.h
@@ -72,12 +72,10 @@ struct lap_cb;
 
 #define WATCHDOG_TIMEOUT        (20*HZ)       /* 20 sec */
 
-typedef void (*TIMER_CALLBACK)(void *);
-
 static inline void irda_start_timer(struct timer_list *ptimer, int timeout, 
-				    void* data, TIMER_CALLBACK callback)
+				    void* data, void (*callback)(unsigned long))
 {
-	ptimer->function = (void (*)(unsigned long)) callback;
+	ptimer->function = callback;
 	ptimer->data = (unsigned long) data;
 	
 	/* Set new value for timer (update or add timer).
diff --git a/include/net/iucv/af_iucv.h b/include/net/iucv/af_iucv.h
index 714cc9a..ea05f3e 100644
--- a/include/net/iucv/af_iucv.h
+++ b/include/net/iucv/af_iucv.h
@@ -149,7 +149,7 @@ struct iucv_skb_cb {
 struct iucv_sock_list {
 	struct hlist_head head;
 	rwlock_t	  lock;
-	atomic_t	  autobind_name;
+	atomic_unchecked_t autobind_name;
 };
 
 unsigned int iucv_sock_poll(struct file *file, struct socket *sock,
diff --git a/include/net/llc_c_ac.h b/include/net/llc_c_ac.h
index f3be818..bf46196 100644
--- a/include/net/llc_c_ac.h
+++ b/include/net/llc_c_ac.h
@@ -87,7 +87,7 @@
 #define LLC_CONN_AC_STOP_SENDACK_TMR			70
 #define LLC_CONN_AC_START_SENDACK_TMR_IF_NOT_RUNNING	71
 
-typedef int (*llc_conn_action_t)(struct sock *sk, struct sk_buff *skb);
+typedef int (* const llc_conn_action_t)(struct sock *sk, struct sk_buff *skb);
 
 int llc_conn_ac_clear_remote_busy(struct sock *sk, struct sk_buff *skb);
 int llc_conn_ac_conn_ind(struct sock *sk, struct sk_buff *skb);
diff --git a/include/net/llc_c_ev.h b/include/net/llc_c_ev.h
index 3948cf1..83b28c4 100644
--- a/include/net/llc_c_ev.h
+++ b/include/net/llc_c_ev.h
@@ -125,8 +125,8 @@ static __inline__ struct llc_conn_state_ev *llc_conn_ev(struct sk_buff *skb)
 	return (struct llc_conn_state_ev *)skb->cb;
 }
 
-typedef int (*llc_conn_ev_t)(struct sock *sk, struct sk_buff *skb);
-typedef int (*llc_conn_ev_qfyr_t)(struct sock *sk, struct sk_buff *skb);
+typedef int (* const llc_conn_ev_t)(struct sock *sk, struct sk_buff *skb);
+typedef int (* const llc_conn_ev_qfyr_t)(struct sock *sk, struct sk_buff *skb);
 
 int llc_conn_ev_conn_req(struct sock *sk, struct sk_buff *skb);
 int llc_conn_ev_data_req(struct sock *sk, struct sk_buff *skb);
diff --git a/include/net/llc_c_st.h b/include/net/llc_c_st.h
index 48f3f89..0e92c50 100644
--- a/include/net/llc_c_st.h
+++ b/include/net/llc_c_st.h
@@ -37,7 +37,7 @@ struct llc_conn_state_trans {
 	u8		   next_state;
 	const llc_conn_ev_qfyr_t *ev_qualifiers;
 	const llc_conn_action_t  *ev_actions;
-};
+} __do_const;
 
 struct llc_conn_state {
 	u8			    current_state;
diff --git a/include/net/llc_s_ac.h b/include/net/llc_s_ac.h
index a61b98c..aade1eb 100644
--- a/include/net/llc_s_ac.h
+++ b/include/net/llc_s_ac.h
@@ -23,7 +23,7 @@
 #define SAP_ACT_TEST_IND	9
 
 /* All action functions must look like this */
-typedef int (*llc_sap_action_t)(struct llc_sap *sap, struct sk_buff *skb);
+typedef int (* const llc_sap_action_t)(struct llc_sap *sap, struct sk_buff *skb);
 
 int llc_sap_action_unitdata_ind(struct llc_sap *sap, struct sk_buff *skb);
 int llc_sap_action_send_ui(struct llc_sap *sap, struct sk_buff *skb);
diff --git a/include/net/llc_s_st.h b/include/net/llc_s_st.h
index c4359e2..76dbc4a 100644
--- a/include/net/llc_s_st.h
+++ b/include/net/llc_s_st.h
@@ -20,7 +20,7 @@ struct llc_sap_state_trans {
 	llc_sap_ev_t	  ev;
 	u8		  next_state;
 	const llc_sap_action_t *ev_actions;
-};
+} __do_const;
 
 struct llc_sap_state {
 	u8			   curr_state;
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index e385eb3..28bc730 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1539,7 +1539,7 @@ enum ieee80211_key_flags {
  * @iv_len: The IV length for this key type
  */
 struct ieee80211_key_conf {
-	atomic64_t tx_pn;
+	atomic64_unchecked_t tx_pn;
 	u32 cipher;
 	u8 icv_len;
 	u8 iv_len;
@@ -5276,7 +5276,7 @@ struct ieee80211_tx_rate_control {
 	struct sk_buff *skb;
 	struct ieee80211_tx_rate reported_rate;
 	bool rts, short_preamble;
-	u8 max_rate_idx;
+	s8 max_rate_idx;
 	u32 rate_idx_mask;
 	u8 *rate_idx_mcs_mask;
 	bool bss;
@@ -5313,7 +5313,7 @@ struct rate_control_ops {
 	void (*remove_sta_debugfs)(void *priv, void *priv_sta);
 
 	u32 (*get_expected_throughput)(void *priv_sta);
-};
+} __do_const;
 
 static inline int rate_supported(struct ieee80211_sta *sta,
 				 enum ieee80211_band band,
diff --git a/include/net/neighbour.h b/include/net/neighbour.h
index 8b68384..48fe40e 100644
--- a/include/net/neighbour.h
+++ b/include/net/neighbour.h
@@ -142,7 +142,7 @@ struct neighbour {
 	unsigned int		arp_queue_len_bytes;
 	struct timer_list	timer;
 	unsigned long		used;
-	atomic_t		probes;
+	atomic_unchecked_t	probes;
 	__u8			flags;
 	__u8			nud_state;
 	__u8			type;
@@ -163,7 +163,7 @@ struct neigh_ops {
 	void			(*error_report)(struct neighbour *, struct sk_buff *);
 	int			(*output)(struct neighbour *, struct sk_buff *);
 	int			(*connected_output)(struct neighbour *, struct sk_buff *);
-};
+} __do_const;
 
 struct pneigh_entry {
 	struct pneigh_entry	*next;
@@ -217,7 +217,7 @@ struct neigh_table {
 	struct neigh_statistics	__percpu *stats;
 	struct neigh_hash_table __rcu *nht;
 	struct pneigh_entry	**phash_buckets;
-};
+} __randomize_layout;
 
 enum {
 	NEIGH_ARP_TABLE = 0,
diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
index 4089abc..bf8084a 100644
--- a/include/net/net_namespace.h
+++ b/include/net/net_namespace.h
@@ -53,7 +53,7 @@ struct net {
 						 */
 	spinlock_t		rules_mod_lock;
 
-	atomic64_t		cookie_gen;
+	atomic64_unchecked_t	cookie_gen;
 
 	struct list_head	list;		/* list of network namespaces */
 	struct list_head	cleanup_list;	/* namespaces on death row */
@@ -141,8 +141,8 @@ struct net {
 	struct netns_mpls	mpls;
 #endif
 	struct sock		*diag_nlsk;
-	atomic_t		fnhe_genid;
-};
+	atomic_unchecked_t	fnhe_genid;
+} __randomize_layout;
 
 #include <linux/seq_file_net.h>
 
@@ -277,7 +277,11 @@ static inline struct net *read_pnet(const possible_net_t *pnet)
 #define __net_init	__init
 #define __net_exit	__exit_refok
 #define __net_initdata	__initdata
+#ifdef CONSTIFY_PLUGIN
 #define __net_initconst	__initconst
+#else
+#define __net_initconst	__initdata
+#endif
 #endif
 
 int peernet2id_alloc(struct net *net, struct net *peer);
@@ -292,7 +296,7 @@ struct pernet_operations {
 	void (*exit_batch)(struct list_head *net_exit_list);
 	int *id;
 	size_t size;
-};
+} __do_const;
 
 /*
  * Use these carefully.  If you implement a network device and it
@@ -340,12 +344,12 @@ static inline void unregister_net_sysctl_table(struct ctl_table_header *header)
 
 static inline int rt_genid_ipv4(struct net *net)
 {
-	return atomic_read(&net->ipv4.rt_genid);
+	return atomic_read_unchecked(&net->ipv4.rt_genid);
 }
 
 static inline void rt_genid_bump_ipv4(struct net *net)
 {
-	atomic_inc(&net->ipv4.rt_genid);
+	atomic_inc_unchecked(&net->ipv4.rt_genid);
 }
 
 extern void (*__fib6_flush_trees)(struct net *net);
@@ -372,12 +376,12 @@ static inline void rt_genid_bump_all(struct net *net)
 
 static inline int fnhe_genid(struct net *net)
 {
-	return atomic_read(&net->fnhe_genid);
+	return atomic_read_unchecked(&net->fnhe_genid);
 }
 
 static inline void fnhe_genid_bump(struct net *net)
 {
-	atomic_inc(&net->fnhe_genid);
+	atomic_inc_unchecked(&net->fnhe_genid);
 }
 
 #endif /* __NET_NET_NAMESPACE_H */
diff --git a/include/net/netfilter/nf_conntrack.h b/include/net/netfilter/nf_conntrack.h
index fde4068..d11e09b 100644
--- a/include/net/netfilter/nf_conntrack.h
+++ b/include/net/netfilter/nf_conntrack.h
@@ -286,7 +286,7 @@ static inline bool nf_is_loopback_packet(const struct sk_buff *skb)
 
 struct kernel_param;
 
-int nf_conntrack_set_hashsize(const char *val, struct kernel_param *kp);
+int nf_conntrack_set_hashsize(const char *val, const struct kernel_param *kp);
 extern unsigned int nf_conntrack_htable_size;
 extern unsigned int nf_conntrack_max;
 extern unsigned int nf_conntrack_hash_rnd;
diff --git a/include/net/netlink.h b/include/net/netlink.h
index 0e31727..2f2b511 100644
--- a/include/net/netlink.h
+++ b/include/net/netlink.h
@@ -521,7 +521,7 @@ static inline void nlmsg_trim(struct sk_buff *skb, const void *mark)
 {
 	if (mark) {
 		WARN_ON((unsigned char *) mark < skb->data);
-		skb_trim(skb, (unsigned char *) mark - skb->data);
+		skb_trim(skb, (const unsigned char *) mark - skb->data);
 	}
 }
 
diff --git a/include/net/netns/conntrack.h b/include/net/netns/conntrack.h
index 723b61c..4386367 100644
--- a/include/net/netns/conntrack.h
+++ b/include/net/netns/conntrack.h
@@ -14,10 +14,10 @@ struct nf_conntrack_ecache;
 struct nf_proto_net {
 #ifdef CONFIG_SYSCTL
 	struct ctl_table_header *ctl_table_header;
-	struct ctl_table        *ctl_table;
+	ctl_table_no_const      *ctl_table;
 #ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
 	struct ctl_table_header *ctl_compat_header;
-	struct ctl_table        *ctl_compat_table;
+	ctl_table_no_const      *ctl_compat_table;
 #endif
 #endif
 	unsigned int		users;
@@ -60,7 +60,7 @@ struct nf_ip_net {
 	struct nf_icmp_net	icmpv6;
 #if defined(CONFIG_SYSCTL) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT)
 	struct ctl_table_header *ctl_table_header;
-	struct ctl_table	*ctl_table;
+	ctl_table_no_const	*ctl_table;
 #endif
 };
 
diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index a69cde3..ba46ea3 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -119,7 +119,7 @@ struct netns_ipv4 {
 
 	struct ping_group_range ping_group_range;
 
-	atomic_t dev_addr_genid;
+	atomic_unchecked_t dev_addr_genid;
 
 #ifdef CONFIG_SYSCTL
 	unsigned long *sysctl_local_reserved_ports;
@@ -133,6 +133,6 @@ struct netns_ipv4 {
 	struct fib_rules_ops	*mr_rules_ops;
 #endif
 #endif
-	atomic_t	rt_genid;
+	atomic_unchecked_t	rt_genid;
 };
 #endif
diff --git a/include/net/netns/ipv6.h b/include/net/netns/ipv6.h
index 10d0848..68bc2da 100644
--- a/include/net/netns/ipv6.h
+++ b/include/net/netns/ipv6.h
@@ -83,8 +83,8 @@ struct netns_ipv6 {
 	struct fib_rules_ops	*mr6_rules_ops;
 #endif
 #endif
-	atomic_t		dev_addr_genid;
-	atomic_t		fib6_sernum;
+	atomic_unchecked_t	dev_addr_genid;
+	atomic_unchecked_t	fib6_sernum;
 };
 
 #if IS_ENABLED(CONFIG_NF_DEFRAG_IPV6)
diff --git a/include/net/netns/xfrm.h b/include/net/netns/xfrm.h
index 24cd394..8310b26 100644
--- a/include/net/netns/xfrm.h
+++ b/include/net/netns/xfrm.h
@@ -78,7 +78,7 @@ struct netns_xfrm {
 
 	/* flow cache part */
 	struct flow_cache	flow_cache_global;
-	atomic_t		flow_cache_genid;
+	atomic_unchecked_t	flow_cache_genid;
 	struct list_head	flow_cache_gc_list;
 	atomic_t		flow_cache_gc_count;
 	spinlock_t		flow_cache_gc_lock;
diff --git a/include/net/ping.h b/include/net/ping.h
index 4cd90d6..4947311 100644
--- a/include/net/ping.h
+++ b/include/net/ping.h
@@ -54,7 +54,7 @@ struct ping_iter_state {
 
 extern struct proto ping_prot;
 #if IS_ENABLED(CONFIG_IPV6)
-extern struct pingv6_ops pingv6_ops;
+extern struct pingv6_ops *pingv6_ops;
 #endif
 
 struct pingfakehdr {
diff --git a/include/net/protocol.h b/include/net/protocol.h
index da689f5..3b3d55b 100644
--- a/include/net/protocol.h
+++ b/include/net/protocol.h
@@ -49,7 +49,7 @@ struct net_protocol {
 				 * socket lookup?
 				 */
 				icmp_strict_tag_validation:1;
-};
+} __do_const;
 
 #if IS_ENABLED(CONFIG_IPV6)
 struct inet6_protocol {
@@ -62,7 +62,7 @@ struct inet6_protocol {
 			       u8 type, u8 code, int offset,
 			       __be32 info);
 	unsigned int	flags;	/* INET6_PROTO_xxx */
-};
+} __do_const;
 
 #define INET6_PROTO_NOPOLICY	0x1
 #define INET6_PROTO_FINAL	0x2
diff --git a/include/net/rtnetlink.h b/include/net/rtnetlink.h
index 2f87c1b..5a03287 100644
--- a/include/net/rtnetlink.h
+++ b/include/net/rtnetlink.h
@@ -95,7 +95,7 @@ struct rtnl_link_ops {
 						   const struct net_device *dev,
 						   const struct net_device *slave_dev);
 	struct net		*(*get_link_net)(const struct net_device *dev);
-};
+} __do_const;
 
 int __rtnl_link_register(struct rtnl_link_ops *ops);
 void __rtnl_link_unregister(struct rtnl_link_ops *ops);
diff --git a/include/net/sctp/checksum.h b/include/net/sctp/checksum.h
index 4a5b9a3..ca27d73 100644
--- a/include/net/sctp/checksum.h
+++ b/include/net/sctp/checksum.h
@@ -61,8 +61,8 @@ static inline __le32 sctp_compute_cksum(const struct sk_buff *skb,
 					unsigned int offset)
 {
 	struct sctphdr *sh = sctp_hdr(skb);
-        __le32 ret, old = sh->checksum;
-	const struct skb_checksum_ops ops = {
+	__le32 ret, old = sh->checksum;
+	static const struct skb_checksum_ops ops = {
 		.update  = sctp_csum_update,
 		.combine = sctp_csum_combine,
 	};
diff --git a/include/net/sctp/sm.h b/include/net/sctp/sm.h
index efc0174..cb23681 100644
--- a/include/net/sctp/sm.h
+++ b/include/net/sctp/sm.h
@@ -80,7 +80,7 @@ typedef void (sctp_timer_event_t) (unsigned long);
 typedef struct {
 	sctp_state_fn_t *fn;
 	const char *name;
-} sctp_sm_table_entry_t;
+} __do_const sctp_sm_table_entry_t;
 
 /* A naming convention of "sctp_sf_xxx" applies to all the state functions
  * currently in use.
@@ -292,7 +292,7 @@ __u32 sctp_generate_tag(const struct sctp_endpoint *);
 __u32 sctp_generate_tsn(const struct sctp_endpoint *);
 
 /* Extern declarations for major data structures.  */
-extern sctp_timer_event_t *sctp_timer_events[SCTP_NUM_TIMEOUT_TYPES];
+extern sctp_timer_event_t * const sctp_timer_events[SCTP_NUM_TIMEOUT_TYPES];
 
 
 /* Get the size of a DATA chunk payload. */
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 5a404c3..942221e 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -512,7 +512,7 @@ struct sctp_pf {
 	void (*to_sk_saddr)(union sctp_addr *, struct sock *sk);
 	void (*to_sk_daddr)(union sctp_addr *, struct sock *sk);
 	struct sctp_af *af;
-};
+} __do_const;
 
 
 /* Structure to track chunk fragments that have been acked, but peer
diff --git a/include/net/snmp.h b/include/net/snmp.h
index 35512ac..edbd85b 100644
--- a/include/net/snmp.h
+++ b/include/net/snmp.h
@@ -67,7 +67,7 @@ struct icmp_mib {
 
 #define ICMPMSG_MIB_MAX	__ICMPMSG_MIB_MAX
 struct icmpmsg_mib {
-	atomic_long_t	mibs[ICMPMSG_MIB_MAX];
+	atomic_long_unchecked_t	mibs[ICMPMSG_MIB_MAX];
 };
 
 /* ICMP6 (IPv6-ICMP) */
@@ -78,17 +78,17 @@ struct icmpv6_mib {
 };
 /* per device counters, (shared on all cpus) */
 struct icmpv6_mib_device {
-	atomic_long_t	mibs[ICMP6_MIB_MAX];
+	atomic_long_unchecked_t	mibs[ICMP6_MIB_MAX];
 };
 
 #define ICMP6MSG_MIB_MAX  __ICMP6MSG_MIB_MAX
 /* per network ns counters */
 struct icmpv6msg_mib {
-	atomic_long_t	mibs[ICMP6MSG_MIB_MAX];
+	atomic_long_unchecked_t	mibs[ICMP6MSG_MIB_MAX];
 };
 /* per device counters, (shared on all cpus) */
 struct icmpv6msg_mib_device {
-	atomic_long_t	mibs[ICMP6MSG_MIB_MAX];
+	atomic_long_unchecked_t	mibs[ICMP6MSG_MIB_MAX];
 };
 
 
@@ -130,7 +130,7 @@ struct linux_xfrm_mib {
 			this_cpu_inc(mib->mibs[field])
 
 #define SNMP_INC_STATS_ATOMIC_LONG(mib, field)	\
-			atomic_long_inc(&mib->mibs[field])
+			atomic_long_inc_unchecked(&mib->mibs[field])
 
 #define SNMP_INC_STATS(mib, field)	\
 			this_cpu_inc(mib->mibs[field])
diff --git a/include/net/sock.h b/include/net/sock.h
index 121ffc1..0c44dfd 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -188,7 +188,7 @@ struct sock_common {
 	struct in6_addr		skc_v6_rcv_saddr;
 #endif
 
-	atomic64_t		skc_cookie;
+	atomic64_unchecked_t	skc_cookie;
 
 	/* following fields are padding to force
 	 * offset(struct sock, sk_refcnt) == 128 on 64bit arches
@@ -364,7 +364,7 @@ struct sock {
 	unsigned int		sk_napi_id;
 	unsigned int		sk_ll_usec;
 #endif
-	atomic_t		sk_drops;
+	atomic_unchecked_t	sk_drops;
 	int			sk_rcvbuf;
 
 	struct sk_filter __rcu	*sk_filter;
@@ -1041,7 +1041,7 @@ struct proto {
 	atomic_t		socks;
 #endif
 	int			(*diag_destroy)(struct sock *sk, int err);
-};
+} __randomize_layout;
 
 int proto_register(struct proto *prot, int alloc_slab);
 void proto_unregister(struct proto *prot);
@@ -1128,7 +1128,7 @@ static inline long sk_prot_mem_limits(const struct sock *sk, int index)
 	return sk->sk_prot->sysctl_mem[index];
 }
 
-static inline long
+static inline long __intentional_overflow(-1)
 sk_memory_allocated(const struct sock *sk)
 {
 	return atomic_long_read(sk->sk_prot->memory_allocated);
@@ -1687,7 +1687,7 @@ static inline bool sk_check_csum_caps(struct sock *sk)
 }
 
 static inline int skb_do_copy_data_nocache(struct sock *sk, struct sk_buff *skb,
-					   struct iov_iter *from, char *to,
+					   struct iov_iter *from, unsigned char *to,
 					   int copy, int offset)
 {
 	if (skb->ip_summed == CHECKSUM_NONE) {
@@ -1932,7 +1932,7 @@ static inline void sk_stream_moderate_sndbuf(struct sock *sk)
 	}
 }
 
-struct sk_buff *sk_stream_alloc_skb(struct sock *sk, int size, gfp_t gfp,
+struct sk_buff * __intentional_overflow(0) sk_stream_alloc_skb(struct sock *sk, int size, gfp_t gfp,
 				    bool force_schedule);
 
 /**
@@ -2008,7 +2008,7 @@ struct sock_skb_cb {
 static inline void
 sock_skb_set_dropcount(const struct sock *sk, struct sk_buff *skb)
 {
-	SOCK_SKB_CB(skb)->dropcount = atomic_read(&sk->sk_drops);
+	SOCK_SKB_CB(skb)->dropcount = atomic_read_unchecked(&sk->sk_drops);
 }
 
 void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 6db1022..7138bec 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -539,7 +539,7 @@ void tcp_retransmit_timer(struct sock *sk);
 void tcp_xmit_retransmit_queue(struct sock *);
 void tcp_simple_retransmit(struct sock *);
 int tcp_trim_head(struct sock *, struct sk_buff *, u32);
-int tcp_fragment(struct sock *, struct sk_buff *, u32, unsigned int, gfp_t);
+int tcp_fragment(struct sock *, struct sk_buff *, u32, unsigned int, gfp_t) __intentional_overflow(3);
 
 void tcp_send_probe0(struct sock *);
 void tcp_send_partial(struct sock *);
@@ -728,8 +728,8 @@ static inline u32 tcp_skb_timestamp(const struct sk_buff *skb)
  * If this grows please adjust skbuff.h:skbuff->cb[xxx] size appropriately.
  */
 struct tcp_skb_cb {
-	__u32		seq;		/* Starting sequence number	*/
-	__u32		end_seq;	/* SEQ + FIN + SYN + datalen	*/
+	__u32		seq __intentional_overflow(-1);	/* Starting sequence number	*/
+	__u32		end_seq __intentional_overflow(-1);	/* SEQ + FIN + SYN + datalen	*/
 	union {
 		/* Note : tcp_tw_isn is used in input path only
 		 *	  (isn chosen by tcp_timewait_state_process())
@@ -757,7 +757,7 @@ struct tcp_skb_cb {
 
 	__u8		ip_dsfield;	/* IPv4 tos or IPv6 dsfield	*/
 	/* 1 byte hole */
-	__u32		ack_seq;	/* Sequence number ACK'd	*/
+	__u32		ack_seq __intentional_overflow(-1);	/* Sequence number ACK'd	*/
 	union {
 		struct inet_skb_parm	h4;
 #if IS_ENABLED(CONFIG_IPV6)
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index d6f6e50..6fea29e 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -284,7 +284,6 @@ struct xfrm_dst;
 struct xfrm_policy_afinfo {
 	unsigned short		family;
 	struct dst_ops		*dst_ops;
-	void			(*garbage_collect)(struct net *net);
 	struct dst_entry	*(*dst_lookup)(struct net *net,
 					       int tos, int oif,
 					       const xfrm_address_t *saddr,
@@ -303,7 +302,7 @@ struct xfrm_policy_afinfo {
 					    struct net_device *dev,
 					    const struct flowi *fl);
 	struct dst_entry	*(*blackhole_route)(struct net *net, struct dst_entry *orig);
-};
+} __do_const;
 
 int xfrm_policy_register_afinfo(struct xfrm_policy_afinfo *afinfo);
 int xfrm_policy_unregister_afinfo(struct xfrm_policy_afinfo *afinfo);
@@ -342,7 +341,7 @@ struct xfrm_state_afinfo {
 	int			(*transport_finish)(struct sk_buff *skb,
 						    int async);
 	void			(*local_error)(struct sk_buff *skb, u32 mtu);
-};
+} __do_const;
 
 int xfrm_state_register_afinfo(struct xfrm_state_afinfo *afinfo);
 int xfrm_state_unregister_afinfo(struct xfrm_state_afinfo *afinfo);
@@ -437,7 +436,7 @@ struct xfrm_mode {
 	struct module *owner;
 	unsigned int encap;
 	int flags;
-};
+} __do_const;
 
 /* Flags for xfrm_mode. */
 enum {
@@ -532,7 +531,7 @@ struct xfrm_policy {
 	struct timer_list	timer;
 
 	struct flow_cache_object flo;
-	atomic_t		genid;
+	atomic_unchecked_t	genid;
 	u32			priority;
 	u32			index;
 	struct xfrm_mark	mark;
@@ -603,7 +602,7 @@ struct xfrm_mgr {
 					   int num_bundles,
 					   const struct xfrm_kmaddress *k);
 	bool			(*is_alive)(const struct km_event *c);
-};
+} __do_const;
 
 int xfrm_register_km(struct xfrm_mgr *km);
 int xfrm_unregister_km(struct xfrm_mgr *km);
@@ -1172,6 +1171,7 @@ static inline void xfrm_sk_free_policy(struct sock *sk)
 }
 
 void xfrm_garbage_collect(struct net *net);
+void xfrm_garbage_collect_deferred(struct net *net);
 
 #else
 
@@ -1210,6 +1210,9 @@ static inline int xfrm6_policy_check_reverse(struct sock *sk, int dir,
 static inline void xfrm_garbage_collect(struct net *net)
 {
 }
+static inline void xfrm_garbage_collect_deferred(struct net *net)
+{
+}
 #endif
 
 static __inline__
diff --git a/include/rdma/ib_cm.h b/include/rdma/ib_cm.h
index 92a7d85..1779570 100644
--- a/include/rdma/ib_cm.h
+++ b/include/rdma/ib_cm.h
@@ -486,8 +486,8 @@ int ib_cm_notify(struct ib_cm_id *cm_id, enum ib_event_type event);
  * @private_data_len: Size of the private data buffer, in bytes.
  */
 int ib_send_cm_rej(struct ib_cm_id *cm_id,
-		   enum ib_cm_rej_reason reason,
-		   void *ari,
+		   int reason,
+		   const void *ari,
 		   u8 ari_length,
 		   const void *private_data,
 		   u8 private_data_len);
@@ -558,8 +558,8 @@ int ib_cm_init_qp_attr(struct ib_cm_id *cm_id,
  * @private_data_len: Size of the private data buffer, in bytes.
  */
 int ib_send_cm_apr(struct ib_cm_id *cm_id,
-		   enum ib_cm_apr_status status,
-		   void *info,
+		   int status,
+		   const void *info,
 		   u8 info_length,
 		   const void *private_data,
 		   u8 private_data_len);
diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
index 93d14da..734b3d8 100644
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -771,6 +771,7 @@ struct libfc_function_template {
 	 */
 	void (*disc_stop_final) (struct fc_lport *);
 };
+typedef struct libfc_function_template __no_const libfc_function_template_no_const;
 
 /**
  * struct fc_disc - Discovery context
@@ -875,7 +876,7 @@ struct fc_lport {
 	struct fc_vport		       *vport;
 
 	/* Operational Information */
-	struct libfc_function_template tt;
+	libfc_function_template_no_const tt;
 	u8			       link_up;
 	u8			       qfull;
 	enum fc_lport_state	       state;
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index a505079..bf8ba88 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -188,9 +188,9 @@ struct scsi_device {
 	unsigned int max_device_blocked; /* what device_blocked counts down from  */
 #define SCSI_DEFAULT_DEVICE_BLOCKED	3
 
-	atomic_t iorequest_cnt;
-	atomic_t iodone_cnt;
-	atomic_t ioerr_cnt;
+	atomic_unchecked_t iorequest_cnt;
+	atomic_unchecked_t iodone_cnt;
+	atomic_unchecked_t ioerr_cnt;
 
 	struct device		sdev_gendev,
 				sdev_dev;
diff --git a/include/scsi/scsi_driver.h b/include/scsi/scsi_driver.h
index 891a658..fcd68df 100644
--- a/include/scsi/scsi_driver.h
+++ b/include/scsi/scsi_driver.h
@@ -14,7 +14,7 @@ struct scsi_driver {
 	void (*rescan)(struct device *);
 	int (*init_command)(struct scsi_cmnd *);
 	void (*uninit_command)(struct scsi_cmnd *);
-	int (*done)(struct scsi_cmnd *);
+	unsigned int (*done)(struct scsi_cmnd *);
 	int (*eh_action)(struct scsi_cmnd *, int);
 };
 #define to_scsi_driver(drv) \
diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h
index bf66ea6..1c719d83 100644
--- a/include/scsi/scsi_transport_fc.h
+++ b/include/scsi/scsi_transport_fc.h
@@ -758,7 +758,8 @@ struct fc_function_template {
 	unsigned long	show_host_system_hostname:1;
 
 	unsigned long	disable_target_scan:1;
-};
+} __do_const;
+typedef struct fc_function_template __no_const fc_function_template_no_const;
 
 
 /**
diff --git a/include/scsi/sg.h b/include/scsi/sg.h
index 3afec70..b196b43 100644
--- a/include/scsi/sg.h
+++ b/include/scsi/sg.h
@@ -52,7 +52,7 @@ typedef struct sg_io_hdr
 					      or scatter gather list */
     unsigned char __user *cmdp; /* [i], [*i] points to command to perform */
     void __user *sbp;		/* [i], [*o] points to sense_buffer memory */
-    unsigned int timeout;       /* [i] MAX_UINT->no timeout (unit: millisec) */
+    unsigned int timeout __intentional_overflow(-1);       /* [i] MAX_UINT->no timeout (unit: millisec) */
     unsigned int flags;         /* [i] 0 -> default, see SG_FLAG... */
     int pack_id;                /* [i->o] unused internally (normally) */
     void __user * usr_ptr;      /* [i->o] unused internally */
diff --git a/include/sound/compress_driver.h b/include/sound/compress_driver.h
index c0abcdc..1b07286 100644
--- a/include/sound/compress_driver.h
+++ b/include/sound/compress_driver.h
@@ -130,7 +130,7 @@ struct snd_compr_ops {
 			struct snd_compr_caps *caps);
 	int (*get_codec_caps) (struct snd_compr_stream *stream,
 			struct snd_compr_codec_caps *codec);
-};
+} __no_const;
 
 /**
  * struct snd_compr: Compressed device
diff --git a/include/sound/control.h b/include/sound/control.h
index 21d047f..9573462 100644
--- a/include/sound/control.h
+++ b/include/sound/control.h
@@ -214,8 +214,10 @@ int _snd_ctl_add_slave(struct snd_kcontrol *master, struct snd_kcontrol *slave,
  * Return: Zero if successful or a negative error code.
  */
 static inline int
-snd_ctl_add_slave(struct snd_kcontrol *master, struct snd_kcontrol *slave)
+snd_ctl_add_slave(void *_master, struct snd_kcontrol *slave)
 {
+	struct snd_kcontrol *master = _master;
+
 	return _snd_ctl_add_slave(master, slave, 0);
 }
 
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index af1fb37..0432863 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -1075,7 +1075,7 @@ int snd_pcm_update_state(struct snd_pcm_substream *substream,
 			 struct snd_pcm_runtime *runtime);
 int snd_pcm_update_hw_ptr(struct snd_pcm_substream *substream);
 void snd_pcm_playback_silence(struct snd_pcm_substream *substream, snd_pcm_uframes_t new_hw_ptr);
-void snd_pcm_period_elapsed(struct snd_pcm_substream *substream);
+void snd_pcm_period_elapsed(void *_substream);
 snd_pcm_sframes_t snd_pcm_lib_write(struct snd_pcm_substream *substream,
 				    const void __user *buf,
 				    snd_pcm_uframes_t frames);
diff --git a/include/sound/rawmidi.h b/include/sound/rawmidi.h
index f730b91..0079544 100644
--- a/include/sound/rawmidi.h
+++ b/include/sound/rawmidi.h
@@ -159,8 +159,7 @@ void snd_rawmidi_set_ops(struct snd_rawmidi *rmidi, int stream,
 
 /* callbacks */
 
-int snd_rawmidi_receive(struct snd_rawmidi_substream *substream,
-			const unsigned char *buffer, int count);
+int snd_rawmidi_receive(void *_substream, const void *_buffer, int count);
 int snd_rawmidi_transmit_empty(struct snd_rawmidi_substream *substream);
 int snd_rawmidi_transmit_peek(struct snd_rawmidi_substream *substream,
 			      unsigned char *buffer, int count);
diff --git a/include/sound/seq_kernel.h b/include/sound/seq_kernel.h
index feb58d4..9ce81c1 100644
--- a/include/sound/seq_kernel.h
+++ b/include/sound/seq_kernel.h
@@ -80,7 +80,7 @@ int snd_seq_kernel_client_ctl(int client, unsigned int cmd, void *arg);
 #define SNDRV_SEQ_EXT_USRPTR	0x80000000
 #define SNDRV_SEQ_EXT_CHAINED	0x40000000
 
-typedef int (*snd_seq_dump_func_t)(void *ptr, void *buf, int count);
+typedef int (*snd_seq_dump_func_t)(void *ptr, const void *buf, int count);
 int snd_seq_expand_var_event(const struct snd_seq_event *event, int count, char *buf,
 			     int in_kernel, int size_aligned);
 int snd_seq_dump_var_event(const struct snd_seq_event *event,
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 02b4a21..36efb0e 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -920,7 +920,7 @@ struct snd_soc_codec_driver {
 			     enum snd_soc_dapm_type, int);
 
 	bool ignore_pmdown_time;  /* Doesn't benefit from pmdown delay */
-};
+} __do_const;
 
 /* SoC platform interface */
 struct snd_soc_platform_driver {
@@ -947,7 +947,7 @@ struct snd_soc_platform_driver {
 	const struct snd_compr_ops *compr_ops;
 
 	int (*bespoke_trigger)(struct snd_pcm_substream *, int);
-};
+} __do_const;
 
 struct snd_soc_dai_link_component {
 	const char *name;
diff --git a/include/trace/events/fs.h b/include/trace/events/fs.h
new file mode 100644
index 0000000..fb634b7
--- /dev/null
+++ b/include/trace/events/fs.h
@@ -0,0 +1,53 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM fs
+
+#if !defined(_TRACE_FS_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_FS_H
+
+#include <linux/fs.h>
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(do_sys_open,
+
+	TP_PROTO(const char *filename, int flags, int mode),
+
+	TP_ARGS(filename, flags, mode),
+
+	TP_STRUCT__entry(
+		__string(	filename, filename		)
+		__field(	int, flags			)
+		__field(	int, mode			)
+	),
+
+	TP_fast_assign(
+		__assign_str(filename, filename);
+		__entry->flags = flags;
+		__entry->mode = mode;
+	),
+
+	TP_printk("\"%s\" %x %o",
+		  __get_str(filename), __entry->flags, __entry->mode)
+);
+
+TRACE_EVENT(open_exec,
+
+	TP_PROTO(const char *filename),
+
+	TP_ARGS(filename),
+
+	TP_STRUCT__entry(
+		__string(	filename, filename		)
+	),
+
+	TP_fast_assign(
+		__assign_str(filename, filename);
+	),
+
+	TP_printk("\"%s\"",
+		  __get_str(filename))
+);
+
+#endif /* _TRACE_FS_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
diff --git a/include/trace/events/irq.h b/include/trace/events/irq.h
index f95f25e..87ed448 100644
--- a/include/trace/events/irq.h
+++ b/include/trace/events/irq.h
@@ -51,7 +51,7 @@ SOFTIRQ_NAME_LIST
  */
 TRACE_EVENT(irq_handler_entry,
 
-	TP_PROTO(int irq, struct irqaction *action),
+	TP_PROTO(int irq, const struct irqaction *action),
 
 	TP_ARGS(irq, action),
 
@@ -81,7 +81,7 @@ TRACE_EVENT(irq_handler_entry,
  */
 TRACE_EVENT(irq_handler_exit,
 
-	TP_PROTO(int irq, struct irqaction *action, int ret),
+	TP_PROTO(int irq, const struct irqaction *action, int ret),
 
 	TP_ARGS(irq, action, ret),
 
diff --git a/include/trace/events/mmflags.h b/include/trace/events/mmflags.h
index 43cedbf0c..da01f56 100644
--- a/include/trace/events/mmflags.h
+++ b/include/trace/events/mmflags.h
@@ -134,6 +134,12 @@ IF_HAVE_PG_IDLE(PG_idle,		"idle"		)
 #define IF_HAVE_VM_SOFTDIRTY(flag,name)
 #endif
 
+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
+#define IF_HAVE_VM_PAGEEXEC(flag,name) {flag, name },
+#else
+#define IF_HAVE_VM_PAGEEXEC(flag,name)
+#endif
+
 #define __def_vmaflag_names						\
 	{VM_READ,			"read"		},		\
 	{VM_WRITE,			"write"		},		\
@@ -158,6 +164,7 @@ IF_HAVE_PG_IDLE(PG_idle,		"idle"		)
 	{VM_ACCOUNT,			"account"	},		\
 	{VM_NORESERVE,			"noreserve"	},		\
 	{VM_HUGETLB,			"hugetlb"	},		\
+IF_HAVE_VM_PAGEEXEC(VM_PAGEEXEC,	"pageexec"	)		\
 	__VM_ARCH_SPECIFIC_1				,		\
 	__VM_ARCH_SPECIFIC_2				,		\
 	{VM_DONTDUMP,			"dontdump"	},		\
diff --git a/include/uapi/linux/a.out.h b/include/uapi/linux/a.out.h
index 7caf44c..23c6f27 100644
--- a/include/uapi/linux/a.out.h
+++ b/include/uapi/linux/a.out.h
@@ -39,6 +39,14 @@ enum machine_type {
   M_MIPS2 = 152		/* MIPS R6000/R4000 binary */
 };
 
+/* Constants for the N_FLAGS field */
+#define F_PAX_PAGEEXEC	1	/* Paging based non-executable pages */
+#define F_PAX_EMUTRAMP	2	/* Emulate trampolines */
+#define F_PAX_MPROTECT	4	/* Restrict mprotect() */
+#define F_PAX_RANDMMAP	8	/* Randomize mmap() base */
+/*#define F_PAX_RANDEXEC	16*/	/* Randomize ET_EXEC base */
+#define F_PAX_SEGMEXEC	32	/* Segmentation based non-executable pages */
+
 #if !defined (N_MAGIC)
 #define N_MAGIC(exec) ((exec).a_info & 0xffff)
 #endif
diff --git a/include/uapi/linux/bcache.h b/include/uapi/linux/bcache.h
index 22b6ad3..aeba37e 100644
--- a/include/uapi/linux/bcache.h
+++ b/include/uapi/linux/bcache.h
@@ -5,6 +5,7 @@
  * Bcache on disk data structures
  */
 
+#include <linux/compiler.h>
 #include <asm/types.h>
 
 #define BITMASK(name, type, field, offset, size)		\
@@ -20,8 +21,8 @@ static inline void SET_##name(type *k, __u64 v)			\
 /* Btree keys - all units are in sectors */
 
 struct bkey {
-	__u64	high;
-	__u64	low;
+	__u64	high __intentional_overflow(-1);
+	__u64	low __intentional_overflow(-1);
 	__u64	ptr[];
 };
 
diff --git a/include/uapi/linux/byteorder/little_endian.h b/include/uapi/linux/byteorder/little_endian.h
index 4b93f2b..ffa1302 100644
--- a/include/uapi/linux/byteorder/little_endian.h
+++ b/include/uapi/linux/byteorder/little_endian.h
@@ -42,51 +42,51 @@
 
 static __always_inline __le64 __cpu_to_le64p(const __u64 *p)
 {
-	return (__force __le64)*p;
+	return (__force const __le64)*p;
 }
-static __always_inline __u64 __le64_to_cpup(const __le64 *p)
+static __always_inline __u64 __intentional_overflow(-1) __le64_to_cpup(const __le64 *p)
 {
-	return (__force __u64)*p;
+	return (__force const __u64)*p;
 }
 static __always_inline __le32 __cpu_to_le32p(const __u32 *p)
 {
-	return (__force __le32)*p;
+	return (__force const __le32)*p;
 }
 static __always_inline __u32 __le32_to_cpup(const __le32 *p)
 {
-	return (__force __u32)*p;
+	return (__force const __u32)*p;
 }
 static __always_inline __le16 __cpu_to_le16p(const __u16 *p)
 {
-	return (__force __le16)*p;
+	return (__force const __le16)*p;
 }
 static __always_inline __u16 __le16_to_cpup(const __le16 *p)
 {
-	return (__force __u16)*p;
+	return (__force const __u16)*p;
 }
 static __always_inline __be64 __cpu_to_be64p(const __u64 *p)
 {
-	return (__force __be64)__swab64p(p);
+	return (__force const __be64)__swab64p(p);
 }
 static __always_inline __u64 __be64_to_cpup(const __be64 *p)
 {
-	return __swab64p((__u64 *)p);
+	return __swab64p((const __u64 *)p);
 }
 static __always_inline __be32 __cpu_to_be32p(const __u32 *p)
 {
-	return (__force __be32)__swab32p(p);
+	return (__force const __be32)__swab32p(p);
 }
-static __always_inline __u32 __be32_to_cpup(const __be32 *p)
+static __always_inline __u32 __intentional_overflow(-1) __be32_to_cpup(const __be32 *p)
 {
-	return __swab32p((__u32 *)p);
+	return __swab32p((const __u32 *)p);
 }
 static __always_inline __be16 __cpu_to_be16p(const __u16 *p)
 {
-	return (__force __be16)__swab16p(p);
+	return (__force const __be16)__swab16p(p);
 }
 static __always_inline __u16 __be16_to_cpup(const __be16 *p)
 {
-	return __swab16p((__u16 *)p);
+	return __swab16p((const __u16 *)p);
 }
 #define __cpu_to_le64s(x) do { (void)(x); } while (0)
 #define __le64_to_cpus(x) do { (void)(x); } while (0)
diff --git a/include/uapi/linux/connector.h b/include/uapi/linux/connector.h
index 4cb2835..cfbc4e2 100644
--- a/include/uapi/linux/connector.h
+++ b/include/uapi/linux/connector.h
@@ -69,7 +69,7 @@ struct cb_id {
 struct cn_msg {
 	struct cb_id id;
 
-	__u32 seq;
+	__u32 seq __intentional_overflow(-1);
 	__u32 ack;
 
 	__u16 len;		/* Length of the following data */
diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h
index 71e1d0e..6cc9caf 100644
--- a/include/uapi/linux/elf.h
+++ b/include/uapi/linux/elf.h
@@ -37,6 +37,17 @@ typedef __s64	Elf64_Sxword;
 #define PT_GNU_EH_FRAME		0x6474e550
 
 #define PT_GNU_STACK	(PT_LOOS + 0x474e551)
+#define PT_GNU_RELRO	(PT_LOOS + 0x474e552)
+
+#define PT_PAX_FLAGS	(PT_LOOS + 0x5041580)
+
+/* Constants for the e_flags field */
+#define EF_PAX_PAGEEXEC		1	/* Paging based non-executable pages */
+#define EF_PAX_EMUTRAMP		2	/* Emulate trampolines */
+#define EF_PAX_MPROTECT		4	/* Restrict mprotect() */
+#define EF_PAX_RANDMMAP		8	/* Randomize mmap() base */
+/*#define EF_PAX_RANDEXEC		16*/	/* Randomize ET_EXEC base */
+#define EF_PAX_SEGMEXEC		32	/* Segmentation based non-executable pages */
 
 /*
  * Extended Numbering
@@ -94,6 +105,8 @@ typedef __s64	Elf64_Sxword;
 #define DT_DEBUG	21
 #define DT_TEXTREL	22
 #define DT_JMPREL	23
+#define DT_FLAGS	30
+  #define DF_TEXTREL  0x00000004
 #define DT_ENCODING	32
 #define OLD_DT_LOOS	0x60000000
 #define DT_LOOS		0x6000000d
@@ -240,6 +253,19 @@ typedef struct elf64_hdr {
 #define PF_W		0x2
 #define PF_X		0x1
 
+#define PF_PAGEEXEC	(1U << 4)	/* Enable  PAGEEXEC */
+#define PF_NOPAGEEXEC	(1U << 5)	/* Disable PAGEEXEC */
+#define PF_SEGMEXEC	(1U << 6)	/* Enable  SEGMEXEC */
+#define PF_NOSEGMEXEC	(1U << 7)	/* Disable SEGMEXEC */
+#define PF_MPROTECT	(1U << 8)	/* Enable  MPROTECT */
+#define PF_NOMPROTECT	(1U << 9)	/* Disable MPROTECT */
+/*#define PF_RANDEXEC	(1U << 10)*/	/* Enable  RANDEXEC */
+/*#define PF_NORANDEXEC	(1U << 11)*/	/* Disable RANDEXEC */
+#define PF_EMUTRAMP	(1U << 12)	/* Enable  EMUTRAMP */
+#define PF_NOEMUTRAMP	(1U << 13)	/* Disable EMUTRAMP */
+#define PF_RANDMMAP	(1U << 14)	/* Enable  RANDMMAP */
+#define PF_NORANDMMAP	(1U << 15)	/* Disable RANDMMAP */
+
 typedef struct elf32_phdr{
   Elf32_Word	p_type;
   Elf32_Off	p_offset;
@@ -332,6 +358,8 @@ typedef struct elf64_shdr {
 #define	EI_OSABI	7
 #define	EI_PAD		8
 
+#define	EI_PAX		14
+
 #define	ELFMAG0		0x7f		/* EI_MAG */
 #define	ELFMAG1		'E'
 #define	ELFMAG2		'L'
diff --git a/include/uapi/linux/personality.h b/include/uapi/linux/personality.h
index aa169c4..6a2771d 100644
--- a/include/uapi/linux/personality.h
+++ b/include/uapi/linux/personality.h
@@ -30,6 +30,7 @@ enum {
 #define PER_CLEAR_ON_SETID (READ_IMPLIES_EXEC  | \
 			    ADDR_NO_RANDOMIZE  | \
 			    ADDR_COMPAT_LAYOUT | \
+			    ADDR_LIMIT_3GB     | \
 			    MMAP_PAGE_ZERO)
 
 /*
diff --git a/include/uapi/linux/screen_info.h b/include/uapi/linux/screen_info.h
index 8b8d39d..1ca6c07 100644
--- a/include/uapi/linux/screen_info.h
+++ b/include/uapi/linux/screen_info.h
@@ -44,7 +44,7 @@ struct screen_info {
 	__u16 vesa_attributes;	/* 0x34 */
 	__u32 capabilities;     /* 0x36 */
 	__u32 ext_lfb_base;	/* 0x3a */
-	__u8  _reserved[2];	/* 0x3e */
+	__u16 vesapm_size;	/* 0x3e */
 } __attribute__((packed));
 
 #define VIDEO_TYPE_MDA		0x10	/* Monochrome Text Display	*/
diff --git a/include/uapi/linux/swab.h b/include/uapi/linux/swab.h
index 8f3a8f6..736a542 100644
--- a/include/uapi/linux/swab.h
+++ b/include/uapi/linux/swab.h
@@ -43,7 +43,7 @@
  * ___swab16, ___swab32, ___swab64, ___swahw32, ___swahb32
  */
 
-static inline __attribute_const__ __u16 __fswab16(__u16 val)
+static inline __intentional_overflow(0) __attribute_const__ __u16 __fswab16(__u16 val)
 {
 #if defined (__arch_swab16)
 	return __arch_swab16(val);
@@ -52,7 +52,7 @@ static inline __attribute_const__ __u16 __fswab16(__u16 val)
 #endif
 }
 
-static inline __attribute_const__ __u32 __fswab32(__u32 val)
+static inline __intentional_overflow(0) __attribute_const__ __u32 __fswab32(__u32 val)
 {
 #if defined(__arch_swab32)
 	return __arch_swab32(val);
@@ -61,7 +61,7 @@ static inline __attribute_const__ __u32 __fswab32(__u32 val)
 #endif
 }
 
-static inline __attribute_const__ __u64 __fswab64(__u64 val)
+static inline __intentional_overflow(0) __attribute_const__ __u64 __fswab64(__u64 val)
 {
 #if defined (__arch_swab64)
 	return __arch_swab64(val);
diff --git a/include/uapi/linux/xattr.h b/include/uapi/linux/xattr.h
index 1590c49..6977e11 100644
--- a/include/uapi/linux/xattr.h
+++ b/include/uapi/linux/xattr.h
@@ -73,5 +73,10 @@
 #define XATTR_POSIX_ACL_DEFAULT  "posix_acl_default"
 #define XATTR_NAME_POSIX_ACL_DEFAULT XATTR_SYSTEM_PREFIX XATTR_POSIX_ACL_DEFAULT
 
+/* User namespace */
+#define XATTR_PAX_PREFIX "pax."
+#define XATTR_PAX_FLAGS_SUFFIX "flags"
+#define XATTR_NAME_USER_PAX_FLAGS XATTR_USER_PREFIX XATTR_PAX_PREFIX XATTR_PAX_FLAGS_SUFFIX
+#define XATTR_NAME_PAX_FLAGS XATTR_PAX_PREFIX XATTR_PAX_FLAGS_SUFFIX
 
 #endif /* _UAPI_LINUX_XATTR_H */
diff --git a/include/video/udlfb.h b/include/video/udlfb.h
index f9466fa..f4e2b81 100644
--- a/include/video/udlfb.h
+++ b/include/video/udlfb.h
@@ -53,10 +53,10 @@ struct dlfb_data {
 	u32 pseudo_palette[256];
 	int blank_mode; /*one of FB_BLANK_ */
 	/* blit-only rendering path metrics, exposed through sysfs */
-	atomic_t bytes_rendered; /* raw pixel-bytes driver asked to render */
-	atomic_t bytes_identical; /* saved effort with backbuffer comparison */
-	atomic_t bytes_sent; /* to usb, after compression including overhead */
-	atomic_t cpu_kcycles_used; /* transpired during pixel processing */
+	atomic_unchecked_t bytes_rendered; /* raw pixel-bytes driver asked to render */
+	atomic_unchecked_t bytes_identical; /* saved effort with backbuffer comparison */
+	atomic_unchecked_t bytes_sent; /* to usb, after compression including overhead */
+	atomic_unchecked_t cpu_kcycles_used; /* transpired during pixel processing */
 };
 
 #define NR_USB_REQUEST_I2C_SUB_IO 0x02
diff --git a/include/video/uvesafb.h b/include/video/uvesafb.h
index 30f5362..8ed8ac9 100644
--- a/include/video/uvesafb.h
+++ b/include/video/uvesafb.h
@@ -122,6 +122,7 @@ struct uvesafb_par {
 	u8 ypan;			/* 0 - nothing, 1 - ypan, 2 - ywrap */
 	u8 pmi_setpal;			/* PMI for palette changes */
 	u16 *pmi_base;			/* protected mode interface location */
+	u8 *pmi_code;			/* protected mode code location */
 	void *pmi_start;
 	void *pmi_pal;
 	u8 *vbe_state_orig;		/*
diff --git a/init/Kconfig b/init/Kconfig
index 0dfd09d..177e567 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -286,7 +286,8 @@ config FHANDLE
 
 config USELIB
 	bool "uselib syscall"
-	def_bool ALPHA || M68K || SPARC || X86_32 || IA32_EMULATION
+	default n
+	depends on !GRKERNSEC
 	help
 	  This option enables the uselib syscall, a system call used in the
 	  dynamic linker from libc5 and earlier.  glibc does not use this
@@ -629,6 +630,7 @@ config RCU_FAST_NO_HZ
 config TREE_RCU_TRACE
 	def_bool RCU_TRACE && ( TREE_RCU || PREEMPT_RCU )
 	select DEBUG_FS
+	depends on !GRKERNSEC_KMEM
 	help
 	  This option provides tracing for the TREE_RCU and
 	  PREEMPT_RCU implementations, permitting Makefile to
@@ -1133,6 +1135,7 @@ endif # CGROUPS
 config CHECKPOINT_RESTORE
 	bool "Checkpoint/restore support" if EXPERT
 	select PROC_CHILDREN
+	depends on !GRKERNSEC
 	default n
 	help
 	  Enables additional kernel features in a sake of checkpoint/restore.
@@ -1423,6 +1426,7 @@ config KALLSYMS_ALL
 
 config KALLSYMS_ABSOLUTE_PERCPU
 	bool
+	depends on KALLSYMS
 	default X86_64 && SMP
 
 config KALLSYMS_BASE_RELATIVE
@@ -1699,7 +1703,7 @@ config SLUB_DEBUG
 
 config COMPAT_BRK
 	bool "Disable heap randomization"
-	default y
+	default n
 	help
 	  Randomizing heap placement makes heap exploits harder, but it
 	  also breaks ancient binaries (including anything libc5 based).
diff --git a/init/do_mounts.c b/init/do_mounts.c
index dea5de9..497f996 100644
--- a/init/do_mounts.c
+++ b/init/do_mounts.c
@@ -363,11 +363,11 @@ static void __init get_fs_names(char *page)
 static int __init do_mount_root(char *name, char *fs, int flags, void *data)
 {
 	struct super_block *s;
-	int err = sys_mount(name, "/root", fs, flags, data);
+	int err = sys_mount((char __force_user *)name, (char __force_user *)"/root", (char __force_user *)fs, flags, (void __force_user *)data);
 	if (err)
 		return err;
 
-	sys_chdir("/root");
+	sys_chdir((const char __force_user *)"/root");
 	s = current->fs->pwd.dentry->d_sb;
 	ROOT_DEV = s->s_dev;
 	printk(KERN_INFO
@@ -490,18 +490,18 @@ void __init change_floppy(char *fmt, ...)
 	va_start(args, fmt);
 	vsprintf(buf, fmt, args);
 	va_end(args);
-	fd = sys_open("/dev/root", O_RDWR | O_NDELAY, 0);
+	fd = sys_open((char __user *)"/dev/root", O_RDWR | O_NDELAY, 0);
 	if (fd >= 0) {
 		sys_ioctl(fd, FDEJECT, 0);
 		sys_close(fd);
 	}
 	printk(KERN_NOTICE "VFS: Insert %s and press ENTER\n", buf);
-	fd = sys_open("/dev/console", O_RDWR, 0);
+	fd = sys_open((__force const char __user *)"/dev/console", O_RDWR, 0);
 	if (fd >= 0) {
 		sys_ioctl(fd, TCGETS, (long)&termios);
 		termios.c_lflag &= ~ICANON;
 		sys_ioctl(fd, TCSETSF, (long)&termios);
-		sys_read(fd, &c, 1);
+		sys_read(fd, (char __user *)&c, 1);
 		termios.c_lflag |= ICANON;
 		sys_ioctl(fd, TCSETSF, (long)&termios);
 		sys_close(fd);
@@ -600,8 +600,8 @@ void __init prepare_namespace(void)
 	mount_root();
 out:
 	devtmpfs_mount("dev");
-	sys_mount(".", "/", NULL, MS_MOVE, NULL);
-	sys_chroot(".");
+	sys_mount((char __force_user *)".", (char __force_user *)"/", NULL, MS_MOVE, NULL);
+	sys_chroot((const char __force_user *)".");
 }
 
 static bool is_tmpfs;
@@ -609,7 +609,7 @@ static struct dentry *rootfs_mount(struct file_system_type *fs_type,
 	int flags, const char *dev_name, void *data)
 {
 	static unsigned long once;
-	void *fill = ramfs_fill_super;
+	int (*fill)(struct super_block *, void *, int) = ramfs_fill_super;
 
 	if (test_and_set_bit(0, &once))
 		return ERR_PTR(-ENODEV);
diff --git a/init/do_mounts.h b/init/do_mounts.h
index 067af1d..b535547 100644
--- a/init/do_mounts.h
+++ b/init/do_mounts.h
@@ -15,15 +15,15 @@ extern int root_mountflags;
 
 static inline int create_dev(char *name, dev_t dev)
 {
-	sys_unlink(name);
-	return sys_mknod(name, S_IFBLK|0600, new_encode_dev(dev));
+	sys_unlink((char __force_user *)name);
+	return sys_mknod((char __force_user *)name, S_IFBLK|0600, new_encode_dev(dev));
 }
 
 #if BITS_PER_LONG == 32
 static inline u32 bstat(char *name)
 {
 	struct stat64 stat;
-	if (sys_stat64(name, &stat) != 0)
+	if (sys_stat64((char __force_user *)name, (struct stat64 __force_user *)&stat) != 0)
 		return 0;
 	if (!S_ISBLK(stat.st_mode))
 		return 0;
@@ -35,7 +35,7 @@ static inline u32 bstat(char *name)
 static inline u32 bstat(char *name)
 {
 	struct stat stat;
-	if (sys_newstat(name, &stat) != 0)
+	if (sys_newstat((const char __force_user *)name, (struct stat __force_user *)&stat) != 0)
 		return 0;
 	if (!S_ISBLK(stat.st_mode))
 		return 0;
diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c
index a1000ca..3137150 100644
--- a/init/do_mounts_initrd.c
+++ b/init/do_mounts_initrd.c
@@ -37,13 +37,13 @@ static int init_linuxrc(struct subprocess_info *info, struct cred *new)
 {
 	sys_unshare(CLONE_FS | CLONE_FILES);
 	/* stdin/stdout/stderr for /linuxrc */
-	sys_open("/dev/console", O_RDWR, 0);
+	sys_open((const char __force_user *)"/dev/console", O_RDWR, 0);
 	sys_dup(0);
 	sys_dup(0);
 	/* move initrd over / and chdir/chroot in initrd root */
-	sys_chdir("/root");
-	sys_mount(".", "/", NULL, MS_MOVE, NULL);
-	sys_chroot(".");
+	sys_chdir((const char __force_user *)"/root");
+	sys_mount((char __force_user *)".", (char __force_user *)"/", NULL, MS_MOVE, NULL);
+	sys_chroot((const char __force_user *)".");
 	sys_setsid();
 	return 0;
 }
@@ -59,8 +59,8 @@ static void __init handle_initrd(void)
 	create_dev("/dev/root.old", Root_RAM0);
 	/* mount initrd on rootfs' /root */
 	mount_block_root("/dev/root.old", root_mountflags & ~MS_RDONLY);
-	sys_mkdir("/old", 0700);
-	sys_chdir("/old");
+	sys_mkdir((const char __force_user *)"/old", 0700);
+	sys_chdir((const char __force_user *)"/old");
 
 	/* try loading default modules from initrd */
 	load_default_modules();
@@ -80,31 +80,31 @@ static void __init handle_initrd(void)
 	current->flags &= ~PF_FREEZER_SKIP;
 
 	/* move initrd to rootfs' /old */
-	sys_mount("..", ".", NULL, MS_MOVE, NULL);
+	sys_mount((char __force_user *)"..", (char __force_user *)".", NULL, MS_MOVE, NULL);
 	/* switch root and cwd back to / of rootfs */
-	sys_chroot("..");
+	sys_chroot((const char __force_user *)"..");
 
 	if (new_decode_dev(real_root_dev) == Root_RAM0) {
-		sys_chdir("/old");
+		sys_chdir((const char __force_user *)"/old");
 		return;
 	}
 
-	sys_chdir("/");
+	sys_chdir((const char __force_user *)"/");
 	ROOT_DEV = new_decode_dev(real_root_dev);
 	mount_root();
 
 	printk(KERN_NOTICE "Trying to move old root to /initrd ... ");
-	error = sys_mount("/old", "/root/initrd", NULL, MS_MOVE, NULL);
+	error = sys_mount((char __force_user *)"/old", (char __force_user *)"/root/initrd", NULL, MS_MOVE, NULL);
 	if (!error)
 		printk("okay\n");
 	else {
-		int fd = sys_open("/dev/root.old", O_RDWR, 0);
+		int fd = sys_open((const char __force_user *)"/dev/root.old", O_RDWR, 0);
 		if (error == -ENOENT)
 			printk("/initrd does not exist. Ignored.\n");
 		else
 			printk("failed\n");
 		printk(KERN_NOTICE "Unmounting old root\n");
-		sys_umount("/old", MNT_DETACH);
+		sys_umount((char __force_user *)"/old", MNT_DETACH);
 		printk(KERN_NOTICE "Trying to free ramdisk memory ... ");
 		if (fd < 0) {
 			error = fd;
@@ -127,11 +127,11 @@ bool __init initrd_load(void)
 		 * mounted in the normal path.
 		 */
 		if (rd_load_image("/initrd.image") && ROOT_DEV != Root_RAM0) {
-			sys_unlink("/initrd.image");
+			sys_unlink((const char __force_user *)"/initrd.image");
 			handle_initrd();
 			return true;
 		}
 	}
-	sys_unlink("/initrd.image");
+	sys_unlink((const char __force_user *)"/initrd.image");
 	return false;
 }
diff --git a/init/do_mounts_md.c b/init/do_mounts_md.c
index 8cb6db5..d729f50 100644
--- a/init/do_mounts_md.c
+++ b/init/do_mounts_md.c
@@ -180,7 +180,7 @@ static void __init md_setup_drive(void)
 			partitioned ? "_d" : "", minor,
 			md_setup_args[ent].device_names);
 
-		fd = sys_open(name, 0, 0);
+		fd = sys_open((char __force_user *)name, 0, 0);
 		if (fd < 0) {
 			printk(KERN_ERR "md: open failed - cannot start "
 					"array %s\n", name);
@@ -243,7 +243,7 @@ static void __init md_setup_drive(void)
 			 * array without it
 			 */
 			sys_close(fd);
-			fd = sys_open(name, 0, 0);
+			fd = sys_open((char __force_user *)name, 0, 0);
 			sys_ioctl(fd, BLKRRPART, 0);
 		}
 		sys_close(fd);
@@ -293,7 +293,7 @@ static void __init autodetect_raid(void)
 
 	wait_for_device_probe();
 
-	fd = sys_open("/dev/md0", 0, 0);
+	fd = sys_open((const char __force_user *) "/dev/md0", 0, 0);
 	if (fd >= 0) {
 		sys_ioctl(fd, RAID_AUTORUN, raid_autopart);
 		sys_close(fd);
diff --git a/init/init_task.c b/init/init_task.c
index ba0a7f36..a7b3aaa 100644
--- a/init/init_task.c
+++ b/init/init_task.c
@@ -23,4 +23,8 @@ EXPORT_SYMBOL(init_task);
  * linker map entry.
  */
 union thread_union init_thread_union __init_task_data =
+#ifdef CONFIG_X86
+	{ .stack[0] = ~0xabcd1234, };
+#else
 	{ INIT_THREAD_INFO(init_task) };
+#endif
diff --git a/init/initramfs.c b/init/initramfs.c
index b32ad7d..05f6420 100644
--- a/init/initramfs.c
+++ b/init/initramfs.c
@@ -25,7 +25,7 @@ static ssize_t __init xwrite(int fd, const char *p, size_t count)
 
 	/* sys_write only can write MAX_RW_COUNT aka 2G-4K bytes at most */
 	while (count) {
-		ssize_t rv = sys_write(fd, p, count);
+		ssize_t rv = sys_write(fd, (char __force_user *)p, count);
 
 		if (rv < 0) {
 			if (rv == -EINTR || rv == -EAGAIN)
@@ -107,7 +107,7 @@ static void __init free_hash(void)
 	}
 }
 
-static long __init do_utime(char *filename, time_t mtime)
+static long __init do_utime(char __force_user *filename, time_t mtime)
 {
 	struct timespec t[2];
 
@@ -142,7 +142,7 @@ static void __init dir_utime(void)
 	struct dir_entry *de, *tmp;
 	list_for_each_entry_safe(de, tmp, &dir_list, list) {
 		list_del(&de->list);
-		do_utime(de->name, de->mtime);
+		do_utime((char __force_user *)de->name, de->mtime);
 		kfree(de->name);
 		kfree(de);
 	}
@@ -304,7 +304,7 @@ static int __init maybe_link(void)
 	if (nlink >= 2) {
 		char *old = find_link(major, minor, ino, mode, collected);
 		if (old)
-			return (sys_link(old, collected) < 0) ? -1 : 1;
+			return (sys_link((char __force_user *)old, (char __force_user *)collected) < 0) ? -1 : 1;
 	}
 	return 0;
 }
@@ -313,11 +313,11 @@ static void __init clean_path(char *path, umode_t fmode)
 {
 	struct stat st;
 
-	if (!sys_newlstat(path, &st) && (st.st_mode ^ fmode) & S_IFMT) {
+	if (!sys_newlstat((char __force_user *)path, (struct stat __force_user *)&st) && (st.st_mode ^ fmode) & S_IFMT) {
 		if (S_ISDIR(st.st_mode))
-			sys_rmdir(path);
+			sys_rmdir((char __force_user *)path);
 		else
-			sys_unlink(path);
+			sys_unlink((char __force_user *)path);
 	}
 }
 
@@ -338,7 +338,7 @@ static int __init do_name(void)
 			int openflags = O_WRONLY|O_CREAT;
 			if (ml != 1)
 				openflags |= O_TRUNC;
-			wfd = sys_open(collected, openflags, mode);
+			wfd = sys_open((char __force_user *)collected, openflags, mode);
 
 			if (wfd >= 0) {
 				sys_fchown(wfd, uid, gid);
@@ -350,17 +350,17 @@ static int __init do_name(void)
 			}
 		}
 	} else if (S_ISDIR(mode)) {
-		sys_mkdir(collected, mode);
-		sys_chown(collected, uid, gid);
-		sys_chmod(collected, mode);
+		sys_mkdir((char __force_user *)collected, mode);
+		sys_chown((char __force_user *)collected, uid, gid);
+		sys_chmod((char __force_user *)collected, mode);
 		dir_add(collected, mtime);
 	} else if (S_ISBLK(mode) || S_ISCHR(mode) ||
 		   S_ISFIFO(mode) || S_ISSOCK(mode)) {
 		if (maybe_link() == 0) {
-			sys_mknod(collected, mode, rdev);
-			sys_chown(collected, uid, gid);
-			sys_chmod(collected, mode);
-			do_utime(collected, mtime);
+			sys_mknod((char __force_user *)collected, mode, rdev);
+			sys_chown((char __force_user *)collected, uid, gid);
+			sys_chmod((char __force_user *)collected, mode);
+			do_utime((char __force_user *)collected, mtime);
 		}
 	}
 	return 0;
@@ -372,7 +372,7 @@ static int __init do_copy(void)
 		if (xwrite(wfd, victim, body_len) != body_len)
 			error("write error");
 		sys_close(wfd);
-		do_utime(vcollected, mtime);
+		do_utime((char __force_user *)vcollected, mtime);
 		kfree(vcollected);
 		eat(body_len);
 		state = SkipIt;
@@ -390,9 +390,9 @@ static int __init do_symlink(void)
 {
 	collected[N_ALIGN(name_len) + body_len] = '\0';
 	clean_path(collected, 0);
-	sys_symlink(collected + N_ALIGN(name_len), collected);
-	sys_lchown(collected, uid, gid);
-	do_utime(collected, mtime);
+	sys_symlink((char __force_user *)collected + N_ALIGN(name_len), (char __force_user *)collected);
+	sys_lchown((char __force_user *)collected, uid, gid);
+	do_utime((char __force_user *)collected, mtime);
 	state = SkipIt;
 	next_state = Reset;
 	return 0;
diff --git a/init/main.c b/init/main.c
index b3c6e36..71ab08e 100644
--- a/init/main.c
+++ b/init/main.c
@@ -94,6 +94,8 @@ extern void init_IRQ(void);
 extern void fork_init(void);
 extern void radix_tree_init(void);
 
+extern void grsecurity_init(void);
+
 /*
  * Debug helper: via this flag we know that we are in 'early bootup code'
  * where only the boot processor is running with IRQ disabled.  This means
@@ -155,6 +157,48 @@ static int __init set_reset_devices(char *str)
 
 __setup("reset_devices", set_reset_devices);
 
+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
+kgid_t grsec_proc_gid = KGIDT_INIT(CONFIG_GRKERNSEC_PROC_GID);
+static int __init setup_grsec_proc_gid(char *str)
+{
+	grsec_proc_gid = KGIDT_INIT(simple_strtol(str, NULL, 0));
+	return 1;
+}
+__setup("grsec_proc_gid=", setup_grsec_proc_gid);
+#endif
+#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
+int grsec_enable_sysfs_restrict = 1;
+static int __init setup_grsec_sysfs_restrict(char *str)
+{
+	if (!simple_strtol(str, NULL, 0))
+		grsec_enable_sysfs_restrict = 0;
+	return 1;
+}
+__setup("grsec_sysfs_restrict", setup_grsec_sysfs_restrict);
+#endif
+
+#ifdef CONFIG_PAX_SOFTMODE
+int pax_softmode;
+
+static int __init setup_pax_softmode(char *str)
+{
+	get_option(&str, &pax_softmode);
+	return 1;
+}
+__setup("pax_softmode=", setup_pax_softmode);
+#endif
+
+#ifdef CONFIG_PAX_SIZE_OVERFLOW
+bool pax_size_overflow_report_only __read_only;
+
+static int __init setup_pax_size_overflow_report_only(char *str)
+{
+	pax_size_overflow_report_only = true;
+	return 0;
+}
+early_param("pax_size_overflow_report_only", setup_pax_size_overflow_report_only);
+#endif
+
 static const char *argv_init[MAX_INIT_ARGS+2] = { "init", NULL, };
 const char *envp_init[MAX_INIT_ENVS+2] = { "HOME=/", "TERM=linux", NULL, };
 static const char *panic_later, *panic_param;
@@ -708,7 +752,7 @@ static bool __init_or_module initcall_blacklisted(initcall_t fn)
 	struct blacklist_entry *entry;
 	char *fn_name;
 
-	fn_name = kasprintf(GFP_KERNEL, "%pf", fn);
+	fn_name = kasprintf(GFP_KERNEL, "%pX", fn);
 	if (!fn_name)
 		return false;
 
@@ -759,7 +803,7 @@ int __init_or_module do_one_initcall(initcall_t fn)
 {
 	int count = preempt_count();
 	int ret;
-	char msgbuf[64];
+	const char *msg1 = "", *msg2 = "";
 
 	if (initcall_blacklisted(fn))
 		return -EPERM;
@@ -769,18 +813,17 @@ int __init_or_module do_one_initcall(initcall_t fn)
 	else
 		ret = fn();
 
-	msgbuf[0] = 0;
-
 	if (preempt_count() != count) {
-		sprintf(msgbuf, "preemption imbalance ");
+		msg1 = " preemption imbalance";
 		preempt_count_set(count);
 	}
 	if (irqs_disabled()) {
-		strlcat(msgbuf, "disabled interrupts ", sizeof(msgbuf));
+		msg2 = " disabled interrupts";
 		local_irq_enable();
 	}
-	WARN(msgbuf[0], "initcall %pF returned with %s\n", fn, msgbuf);
+	WARN(*msg1 || *msg2, "initcall %pF returned with%s%s\n", fn, msg1, msg2);
 
+	add_latent_entropy();
 	return ret;
 }
 
@@ -885,8 +928,8 @@ static int run_init_process(const char *init_filename)
 {
 	argv_init[0] = init_filename;
 	return do_execve(getname_kernel(init_filename),
-		(const char __user *const __user *)argv_init,
-		(const char __user *const __user *)envp_init);
+		(const char __user *const __force_user *)argv_init,
+		(const char __user *const __force_user *)envp_init);
 }
 
 static int try_to_run_init_process(const char *init_filename)
@@ -903,6 +946,10 @@ static int try_to_run_init_process(const char *init_filename)
 	return ret;
 }
 
+#ifdef CONFIG_GRKERNSEC_CHROOT_INITRD
+extern int gr_init_ran;
+#endif
+
 static noinline void __init kernel_init_freeable(void);
 
 #ifdef CONFIG_DEBUG_RODATA
@@ -951,6 +998,11 @@ static int __ref kernel_init(void *unused)
 		       ramdisk_execute_command, ret);
 	}
 
+#ifdef CONFIG_GRKERNSEC_CHROOT_INITRD
+	/* if no initrd was used, be extra sure we enforce chroot restrictions */
+	gr_init_ran = 1;
+#endif
+
 	/*
 	 * We try each of these until one succeeds.
 	 *
@@ -1008,7 +1060,7 @@ static noinline void __init kernel_init_freeable(void)
 	do_basic_setup();
 
 	/* Open the /dev/console on the rootfs, this should never fail */
-	if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
+	if (sys_open((const char __force_user *) "/dev/console", O_RDWR, 0) < 0)
 		pr_err("Warning: unable to open an initial console.\n");
 
 	(void) sys_dup(0);
@@ -1021,11 +1073,13 @@ static noinline void __init kernel_init_freeable(void)
 	if (!ramdisk_execute_command)
 		ramdisk_execute_command = "/init";
 
-	if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) {
+	if (sys_access((const char __force_user *) ramdisk_execute_command, 0) != 0) {
 		ramdisk_execute_command = NULL;
 		prepare_namespace();
 	}
 
+	grsecurity_init();
+
 	/*
 	 * Ok, we have completed the initial bootup, and
 	 * we're essentially up and running. Get rid of the
diff --git a/ipc/compat.c b/ipc/compat.c
index 9b3c85f..5266b0f 100644
--- a/ipc/compat.c
+++ b/ipc/compat.c
@@ -396,7 +396,7 @@ COMPAT_SYSCALL_DEFINE6(ipc, u32, call, int, first, int, second,
 			       COMPAT_SHMLBA);
 		if (err < 0)
 			return err;
-		return put_user(raddr, (compat_ulong_t *)compat_ptr(third));
+		return put_user(raddr, (compat_ulong_t __user *)compat_ptr(third));
 	}
 	case SHMDT:
 		return sys_shmdt(compat_ptr(ptr));
@@ -747,7 +747,7 @@ COMPAT_SYSCALL_DEFINE3(shmctl, int, first, int, second, void __user *, uptr)
 }
 
 COMPAT_SYSCALL_DEFINE4(semtimedop, int, semid, struct sembuf __user *, tsems,
-		       unsigned, nsops,
+		       compat_long_t, nsops,
 		       const struct compat_timespec __user *, timeout)
 {
 	struct timespec __user *ts64;
diff --git a/ipc/ipc_sysctl.c b/ipc/ipc_sysctl.c
index 8ad93c2..54036e1 100644
--- a/ipc/ipc_sysctl.c
+++ b/ipc/ipc_sysctl.c
@@ -30,7 +30,7 @@ static void *get_ipc(struct ctl_table *table)
 static int proc_ipc_dointvec(struct ctl_table *table, int write,
 	void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	struct ctl_table ipc_table;
+	ctl_table_no_const ipc_table;
 
 	memcpy(&ipc_table, table, sizeof(ipc_table));
 	ipc_table.data = get_ipc(table);
@@ -41,7 +41,7 @@ static int proc_ipc_dointvec(struct ctl_table *table, int write,
 static int proc_ipc_dointvec_minmax(struct ctl_table *table, int write,
 	void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	struct ctl_table ipc_table;
+	ctl_table_no_const ipc_table;
 
 	memcpy(&ipc_table, table, sizeof(ipc_table));
 	ipc_table.data = get_ipc(table);
@@ -65,7 +65,7 @@ static int proc_ipc_dointvec_minmax_orphans(struct ctl_table *table, int write,
 static int proc_ipc_doulongvec_minmax(struct ctl_table *table, int write,
 	void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	struct ctl_table ipc_table;
+	ctl_table_no_const ipc_table;
 	memcpy(&ipc_table, table, sizeof(ipc_table));
 	ipc_table.data = get_ipc(table);
 
@@ -76,7 +76,7 @@ static int proc_ipc_doulongvec_minmax(struct ctl_table *table, int write,
 static int proc_ipc_auto_msgmni(struct ctl_table *table, int write,
 	void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	struct ctl_table ipc_table;
+	ctl_table_no_const ipc_table;
 	int dummy = 0;
 
 	memcpy(&ipc_table, table, sizeof(ipc_table));
@@ -99,6 +99,8 @@ static int proc_ipc_auto_msgmni(struct ctl_table *table, int write,
 static int zero;
 static int one = 1;
 static int int_max = INT_MAX;
+static unsigned long long_zero = 0;
+static unsigned long long_max = LONG_MAX;
 
 static struct ctl_table ipc_kern_table[] = {
 	{
@@ -107,6 +109,8 @@ static struct ctl_table ipc_kern_table[] = {
 		.maxlen		= sizeof(init_ipc_ns.shm_ctlmax),
 		.mode		= 0644,
 		.proc_handler	= proc_ipc_doulongvec_minmax,
+		.extra1		= &long_zero,
+		.extra2		= &long_max,
 	},
 	{
 		.procname	= "shmall",
@@ -114,6 +118,8 @@ static struct ctl_table ipc_kern_table[] = {
 		.maxlen		= sizeof(init_ipc_ns.shm_ctlall),
 		.mode		= 0644,
 		.proc_handler	= proc_ipc_doulongvec_minmax,
+		.extra1		= &long_zero,
+		.extra2		= &long_max,
 	},
 	{
 		.procname	= "shmmni",
diff --git a/ipc/mq_sysctl.c b/ipc/mq_sysctl.c
index 68d4e95..1477ded 100644
--- a/ipc/mq_sysctl.c
+++ b/ipc/mq_sysctl.c
@@ -25,7 +25,7 @@ static void *get_mq(struct ctl_table *table)
 static int proc_mq_dointvec(struct ctl_table *table, int write,
 			    void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	struct ctl_table mq_table;
+	ctl_table_no_const mq_table;
 	memcpy(&mq_table, table, sizeof(mq_table));
 	mq_table.data = get_mq(table);
 
@@ -35,7 +35,7 @@ static int proc_mq_dointvec(struct ctl_table *table, int write,
 static int proc_mq_dointvec_minmax(struct ctl_table *table, int write,
 	void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	struct ctl_table mq_table;
+	ctl_table_no_const mq_table;
 	memcpy(&mq_table, table, sizeof(mq_table));
 	mq_table.data = get_mq(table);
 
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index ade739f..b6c2f20 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -274,6 +274,7 @@ static struct inode *mqueue_get_inode(struct super_block *sb,
 		mq_bytes = mq_treesize + (info->attr.mq_maxmsg *
 					  info->attr.mq_msgsize);
 
+		gr_learn_resource(current, RLIMIT_MSGQUEUE, u->mq_bytes + mq_bytes, 1);
 		spin_lock(&mq_lock);
 		if (u->mq_bytes + mq_bytes < u->mq_bytes ||
 		    u->mq_bytes + mq_bytes > rlimit(RLIMIT_MSGQUEUE)) {
diff --git a/ipc/msg.c b/ipc/msg.c
index 1471db9..dbdcf7f 100644
--- a/ipc/msg.c
+++ b/ipc/msg.c
@@ -1041,7 +1041,8 @@ void msg_exit_ns(struct ipc_namespace *ns)
 static int sysvipc_msg_proc_show(struct seq_file *s, void *it)
 {
 	struct user_namespace *user_ns = seq_user_ns(s);
-	struct msg_queue *msq = it;
+	struct kern_ipc_perm *perm = it;
+	struct msg_queue *msq = container_of(perm, struct msg_queue, q_perm);
 
 	seq_printf(s,
 		   "%10d %10d  %4o  %10lu %10lu %5u %5u %5u %5u %5u %5u %10lu %10lu %10lu\n",
diff --git a/ipc/msgutil.c b/ipc/msgutil.c
index ed81aaf..4bb6792 100644
--- a/ipc/msgutil.c
+++ b/ipc/msgutil.c
@@ -55,7 +55,7 @@ static struct msg_msg *alloc_msg(size_t len)
 	size_t alen;
 
 	alen = min(len, DATALEN_MSG);
-	msg = kmalloc(sizeof(*msg) + alen, GFP_KERNEL);
+	msg = kmalloc(sizeof(*msg) + alen, GFP_KERNEL|GFP_USERCOPY);
 	if (msg == NULL)
 		return NULL;
 
@@ -67,7 +67,7 @@ static struct msg_msg *alloc_msg(size_t len)
 	while (len > 0) {
 		struct msg_msgseg *seg;
 		alen = min(len, DATALEN_SEG);
-		seg = kmalloc(sizeof(*seg) + alen, GFP_KERNEL);
+		seg = kmalloc(sizeof(*seg) + alen, GFP_KERNEL|GFP_USERCOPY);
 		if (seg == NULL)
 			goto out_err;
 		*pseg = seg;
diff --git a/ipc/sem.c b/ipc/sem.c
index b3757ea..387f432 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -1799,7 +1799,7 @@ static int get_queue_result(struct sem_queue *q)
 }
 
 SYSCALL_DEFINE4(semtimedop, int, semid, struct sembuf __user *, tsops,
-		unsigned, nsops, const struct timespec __user *, timeout)
+		long, nsops, const struct timespec __user *, timeout)
 {
 	int error = -EINVAL;
 	struct sem_array *sma;
@@ -2034,7 +2034,7 @@ out_free:
 }
 
 SYSCALL_DEFINE3(semop, int, semid, struct sembuf __user *, tsops,
-		unsigned, nsops)
+		long, nsops)
 {
 	return sys_semtimedop(semid, tsops, nsops, NULL);
 }
@@ -2189,7 +2189,8 @@ void exit_sem(struct task_struct *tsk)
 static int sysvipc_sem_proc_show(struct seq_file *s, void *it)
 {
 	struct user_namespace *user_ns = seq_user_ns(s);
-	struct sem_array *sma = it;
+	struct kern_ipc_perm *perm = it;
+	struct sem_array *sma = container_of(perm, struct sem_array, sem_perm);
 	time_t sem_otime;
 
 	/*
diff --git a/ipc/shm.c b/ipc/shm.c
index 331fc1b..ee0e110 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -72,9 +72,17 @@ static void shm_destroy(struct ipc_namespace *ns, struct shmid_kernel *shp);
 static int sysvipc_shm_proc_show(struct seq_file *s, void *it);
 #endif
 
+#ifdef CONFIG_GRKERNSEC
+extern int gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
+			   const u64 shm_createtime, const kuid_t cuid,
+			   const int shmid);
+extern int gr_chroot_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
+			   const u64 shm_createtime);
+#endif
+
 void shm_init_ns(struct ipc_namespace *ns)
 {
-	ns->shm_ctlmax = SHMMAX;
+	ns->shm_ctlmax = BITS_PER_LONG == 32 ? SHMMAX : LONG_MAX;
 	ns->shm_ctlall = SHMALL;
 	ns->shm_ctlmni = SHMMNI;
 	ns->shm_rmid_forced = 0;
@@ -588,6 +596,9 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
 	shp->shm_lprid = 0;
 	shp->shm_atim = shp->shm_dtim = 0;
 	shp->shm_ctim = get_seconds();
+#ifdef CONFIG_GRKERNSEC
+	shp->shm_createtime = ktime_get_ns();
+#endif
 	shp->shm_segsz = size;
 	shp->shm_nattch = 0;
 	shp->shm_file = file;
@@ -1131,6 +1142,12 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr,
 		f_mode = FMODE_READ | FMODE_WRITE;
 	}
 	if (shmflg & SHM_EXEC) {
+
+#ifdef CONFIG_PAX_MPROTECT
+		if (current->mm->pax_flags & MF_PAX_MPROTECT)
+			goto out;
+#endif
+
 		prot |= PROT_EXEC;
 		acc_mode |= S_IXUGO;
 	}
@@ -1155,6 +1172,15 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr,
 	if (err)
 		goto out_unlock;
 
+#ifdef CONFIG_GRKERNSEC
+	if (!gr_handle_shmat(shp->shm_cprid, shp->shm_lapid, shp->shm_createtime,
+			     shp->shm_perm.cuid, shmid) ||
+	    !gr_chroot_shmat(shp->shm_cprid, shp->shm_lapid, shp->shm_createtime)) {
+		err = -EACCES;
+		goto out_unlock;
+	}
+#endif
+
 	ipc_lock_object(&shp->shm_perm);
 
 	/* check if shm_destroy() is tearing down shp */
@@ -1167,6 +1193,9 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr,
 	path = shp->shm_file->f_path;
 	path_get(&path);
 	shp->shm_nattch++;
+#ifdef CONFIG_GRKERNSEC
+	shp->shm_lapid = current->pid;
+#endif
 	size = i_size_read(d_inode(path.dentry));
 	ipc_unlock_object(&shp->shm_perm);
 	rcu_read_unlock();
@@ -1365,7 +1394,8 @@ SYSCALL_DEFINE1(shmdt, char __user *, shmaddr)
 static int sysvipc_shm_proc_show(struct seq_file *s, void *it)
 {
 	struct user_namespace *user_ns = seq_user_ns(s);
-	struct shmid_kernel *shp = it;
+	struct kern_ipc_perm *perm = it;
+	struct shmid_kernel *shp = container_of(perm, struct shmid_kernel, shm_perm);
 	unsigned long rss = 0, swp = 0;
 
 	shm_add_rss_swap(shp, &rss, &swp);
diff --git a/ipc/util.c b/ipc/util.c
index 798cad1..d6ffc17 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -71,6 +71,8 @@ struct ipc_proc_iface {
 	int (*show)(struct seq_file *, void *);
 };
 
+extern int gr_ipc_permitted(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp, int requested_mode, int granted_mode);
+
 /**
  * ipc_init - initialise ipc subsystem
  *
@@ -489,6 +491,10 @@ int ipcperms(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp, short flag)
 		granted_mode >>= 6;
 	else if (in_group_p(ipcp->cgid) || in_group_p(ipcp->gid))
 		granted_mode >>= 3;
+
+	if (!gr_ipc_permitted(ns, ipcp, requested_mode, granted_mode))
+		return -1;
+
 	/* is there some bit set in requested_mode but not in granted_mode? */
 	if ((requested_mode & ~granted_mode & 0007) &&
 	    !ns_capable(ns->user_ns, CAP_IPC_OWNER))
diff --git a/kernel/audit.c b/kernel/audit.c
index 678c3f0..188341c 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -123,7 +123,7 @@ u32		audit_sig_sid = 0;
    3) suppressed due to audit_rate_limit
    4) suppressed due to audit_backlog_limit
 */
-static atomic_t    audit_lost = ATOMIC_INIT(0);
+static atomic_unchecked_t    audit_lost = ATOMIC_INIT(0);
 
 /* The netlink socket. */
 static struct sock *audit_sock;
@@ -257,7 +257,7 @@ void audit_log_lost(const char *message)
 	unsigned long		now;
 	int			print;
 
-	atomic_inc(&audit_lost);
+	atomic_inc_unchecked(&audit_lost);
 
 	print = (audit_failure == AUDIT_FAIL_PANIC || !audit_rate_limit);
 
@@ -274,7 +274,7 @@ void audit_log_lost(const char *message)
 	if (print) {
 		if (printk_ratelimit())
 			pr_warn("audit_lost=%u audit_rate_limit=%u audit_backlog_limit=%u\n",
-				atomic_read(&audit_lost),
+				atomic_read_unchecked(&audit_lost),
 				audit_rate_limit,
 				audit_backlog_limit);
 		audit_panic(message);
@@ -856,7 +856,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 		s.pid			= audit_pid;
 		s.rate_limit		= audit_rate_limit;
 		s.backlog_limit		= audit_backlog_limit;
-		s.lost			= atomic_read(&audit_lost);
+		s.lost			= atomic_read_unchecked(&audit_lost);
 		s.backlog		= skb_queue_len(&audit_skb_queue);
 		s.feature_bitmap	= AUDIT_FEATURE_BITMAP_ALL;
 		s.backlog_wait_time	= audit_backlog_wait_time_master;
@@ -1173,7 +1173,7 @@ static void __net_exit audit_net_exit(struct net *net)
 	netlink_kernel_release(sock);
 }
 
-static struct pernet_operations audit_net_ops __net_initdata = {
+static struct pernet_operations audit_net_ops __net_initconst = {
 	.init = audit_net_init,
 	.exit = audit_net_exit,
 	.id = &audit_net_id,
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 7d0e3cf..023002c 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -1024,7 +1024,7 @@ static int audit_log_single_execve_arg(struct audit_context *context,
 	 * for strings that are too long, we should not have created
 	 * any.
 	 */
-	if (WARN_ON_ONCE(len < 0 || len > MAX_ARG_STRLEN - 1)) {
+	if (WARN_ON_ONCE(len > MAX_ARG_STRLEN - 1)) {
 		send_sig(SIGKILL, current, 0);
 		return -1;
 	}
@@ -1955,7 +1955,7 @@ int auditsc_get_stamp(struct audit_context *ctx,
 }
 
 /* global counter which is incremented every time something logs in */
-static atomic_t session_id = ATOMIC_INIT(0);
+static atomic_unchecked_t session_id = ATOMIC_INIT(0);
 
 static int audit_set_loginuid_perm(kuid_t loginuid)
 {
@@ -2022,7 +2022,7 @@ int audit_set_loginuid(kuid_t loginuid)
 
 	/* are we setting or clearing? */
 	if (uid_valid(loginuid))
-		sessionid = (unsigned int)atomic_inc_return(&session_id);
+		sessionid = (unsigned int)atomic_inc_return_unchecked(&session_id);
 
 	task->sessionid = sessionid;
 	task->loginuid = loginuid;
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
index be0abf6..28fce60 100644
--- a/kernel/bpf/core.c
+++ b/kernel/bpf/core.c
@@ -139,6 +139,8 @@ void __bpf_prog_free(struct bpf_prog *fp)
 EXPORT_SYMBOL_GPL(__bpf_prog_free);
 
 #ifdef CONFIG_BPF_JIT
+extern long __rap_hash___bpf_prog_run;
+
 struct bpf_binary_header *
 bpf_jit_binary_alloc(unsigned int proglen, u8 **image_ptr,
 		     unsigned int alignment,
@@ -152,27 +154,45 @@ bpf_jit_binary_alloc(unsigned int proglen, u8 **image_ptr,
 	 * random section of illegal instructions.
 	 */
 	size = round_up(proglen + sizeof(*hdr) + 128, PAGE_SIZE);
-	hdr = module_alloc(size);
+	hdr = module_alloc_exec(size);
 	if (hdr == NULL)
 		return NULL;
 
 	/* Fill space with illegal/arch-dep instructions. */
 	bpf_fill_ill_insns(hdr, size);
 
+	pax_open_kernel();
 	hdr->pages = size / PAGE_SIZE;
+	pax_close_kernel();
+
 	hole = min_t(unsigned int, size - (proglen + sizeof(*hdr)),
 		     PAGE_SIZE - sizeof(*hdr));
+
+#ifdef CONFIG_PAX_RAP
+	hole -= 8;
+#endif
+
 	start = (prandom_u32() % hole) & ~(alignment - 1);
 
+#ifdef CONFIG_PAX_RAP
+	start += 8;
+#endif
+
 	/* Leave a random number of instructions before BPF code. */
 	*image_ptr = &hdr->image[start];
 
+#ifdef CONFIG_PAX_RAP
+	pax_open_kernel();
+	*(long *)(*image_ptr - 8) = (long)&__rap_hash___bpf_prog_run;
+	pax_close_kernel();
+#endif
+
 	return hdr;
 }
 
 void bpf_jit_binary_free(struct bpf_binary_header *hdr)
 {
-	module_memfree(hdr);
+	module_memfree_exec(hdr);
 }
 #endif /* CONFIG_BPF_JIT */
 
@@ -193,7 +213,7 @@ EXPORT_SYMBOL_GPL(__bpf_call_base);
  *
  * Decode and execute eBPF instructions.
  */
-static unsigned int __bpf_prog_run(void *ctx, const struct bpf_insn *insn)
+unsigned int __bpf_prog_run(const struct sk_buff *ctx, const struct bpf_insn *insn)
 {
 	u64 stack[MAX_BPF_STACK / sizeof(u64)];
 	u64 regs[MAX_BPF_REG], tmp;
@@ -698,7 +718,7 @@ static int bpf_check_tail_call(const struct bpf_prog *fp)
  */
 int bpf_prog_select_runtime(struct bpf_prog *fp)
 {
-	fp->bpf_func = (void *) __bpf_prog_run;
+	fp->bpf_func = __bpf_prog_run;
 
 	bpf_int_jit_compile(fp);
 	bpf_prog_lock_ro(fp);
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index cf5e9f7..81ece72 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -805,8 +805,16 @@ SYSCALL_DEFINE3(bpf, int, cmd, union bpf_attr __user *, uattr, unsigned int, siz
 	union bpf_attr attr = {};
 	int err;
 
-	if (!capable(CAP_SYS_ADMIN) && sysctl_unprivileged_bpf_disabled)
+	/* the syscall is limited to root temporarily. This restriction will be
+	 * lifted by upstream when a half-assed security audit is clean. Note
+	 * that eBPF+tracing must have this restriction, since it may pass
+	 * kernel data to user space
+	 */
+	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
+#ifdef CONFIG_GRKERNSEC
+	return -EPERM;
+#endif
 
 	if (!access_ok(VERIFY_READ, uattr, 1))
 		return -EFAULT;
diff --git a/kernel/capability.c b/kernel/capability.c
index 45432b5..7d860f7 100644
--- a/kernel/capability.c
+++ b/kernel/capability.c
@@ -193,6 +193,9 @@ SYSCALL_DEFINE2(capget, cap_user_header_t, header, cap_user_data_t, dataptr)
 		 * before modification is attempted and the application
 		 * fails.
 		 */
+		if (tocopy > ARRAY_SIZE(kdata))
+			return -EFAULT;
+
 		if (copy_to_user(dataptr, kdata, tocopy
 				 * sizeof(struct __user_cap_data_struct))) {
 			return -EFAULT;
@@ -298,10 +301,11 @@ bool has_ns_capability(struct task_struct *t,
 	int ret;
 
 	rcu_read_lock();
-	ret = security_capable(__task_cred(t), ns, cap);
+	ret = security_capable(__task_cred(t), ns, cap) == 0 &&
+		gr_task_is_capable(t, __task_cred(t), cap);
 	rcu_read_unlock();
 
-	return (ret == 0);
+	return ret;
 }
 
 /**
@@ -338,10 +342,10 @@ bool has_ns_capability_noaudit(struct task_struct *t,
 	int ret;
 
 	rcu_read_lock();
-	ret = security_capable_noaudit(__task_cred(t), ns, cap);
+	ret = security_capable_noaudit(__task_cred(t), ns, cap) == 0 && gr_task_is_capable_nolog(t, __task_cred(t), cap);
 	rcu_read_unlock();
 
-	return (ret == 0);
+	return ret;
 }
 
 /**
@@ -379,7 +383,7 @@ bool ns_capable(struct user_namespace *ns, int cap)
 		BUG();
 	}
 
-	if (security_capable(current_cred(), ns, cap) == 0) {
+	if (security_capable(current_cred(), ns, cap) == 0 && gr_is_capable(cap)) {
 		current->flags |= PF_SUPERPRIV;
 		return true;
 	}
@@ -387,6 +391,20 @@ bool ns_capable(struct user_namespace *ns, int cap)
 }
 EXPORT_SYMBOL(ns_capable);
 
+bool ns_capable_nolog(struct user_namespace *ns, int cap)
+{
+	if (unlikely(!cap_valid(cap))) {
+		pr_crit("capable_nolog() called with invalid cap=%u\n", cap);
+		BUG();
+	}
+
+	if (security_capable_noaudit(current_cred(), ns, cap) == 0 && gr_is_capable_nolog(cap)) {
+		current->flags |= PF_SUPERPRIV;
+		return true;
+	}
+	return false;
+}
+EXPORT_SYMBOL(ns_capable_nolog);
 
 /**
  * capable - Determine if the current task has a superior capability in effect
@@ -403,6 +421,13 @@ bool capable(int cap)
 	return ns_capable(&init_user_ns, cap);
 }
 EXPORT_SYMBOL(capable);
+
+bool capable_nolog(int cap)
+{
+	return ns_capable_nolog(&init_user_ns, cap);
+}
+EXPORT_SYMBOL(capable_nolog);
+
 #endif /* CONFIG_MULTIUSER */
 
 /**
@@ -447,3 +472,12 @@ bool capable_wrt_inode_uidgid(const struct inode *inode, int cap)
 		kgid_has_mapping(ns, inode->i_gid);
 }
 EXPORT_SYMBOL(capable_wrt_inode_uidgid);
+
+bool capable_wrt_inode_uidgid_nolog(const struct inode *inode, int cap)
+{
+	struct user_namespace *ns = current_user_ns();
+
+	return ns_capable_nolog(ns, cap) && kuid_has_mapping(ns, inode->i_uid) &&
+		kgid_has_mapping(ns, inode->i_gid);
+}
+EXPORT_SYMBOL(capable_wrt_inode_uidgid_nolog);
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 86cb5c6..2b03272 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -3628,7 +3628,7 @@ static int cgroup_add_file(struct cgroup_subsys_state *css, struct cgroup *cgrp,
 	key = &cft->lockdep_key;
 #endif
 	kn = __kernfs_create_file(cgrp->kn, cgroup_file_name(cgrp, cft, name),
-				  cgroup_file_mode(cft), 0, cft->kf_ops, cft,
+				  cgroup_file_mode(cft), 0, cft->kf_ops, (void *)cft,
 				  NULL, key);
 	if (IS_ERR(kn))
 		return PTR_ERR(kn);
@@ -3732,11 +3732,14 @@ static void cgroup_exit_cftypes(struct cftype *cfts)
 		/* free copy for custom atomic_write_len, see init_cftypes() */
 		if (cft->max_write_len && cft->max_write_len != PAGE_SIZE)
 			kfree(cft->kf_ops);
-		cft->kf_ops = NULL;
-		cft->ss = NULL;
+
+		pax_open_kernel();
+		const_cast(cft->kf_ops) = NULL;
+		const_cast(cft->ss) = NULL;
 
 		/* revert flags set by cgroup core while adding @cfts */
-		cft->flags &= ~(__CFTYPE_ONLY_ON_DFL | __CFTYPE_NOT_ON_DFL);
+		const_cast(cft->flags) &= ~(__CFTYPE_ONLY_ON_DFL | __CFTYPE_NOT_ON_DFL);
+		pax_close_kernel();
 	}
 }
 
@@ -3767,8 +3770,10 @@ static int cgroup_init_cftypes(struct cgroup_subsys *ss, struct cftype *cfts)
 			kf_ops->atomic_write_len = cft->max_write_len;
 		}
 
-		cft->kf_ops = kf_ops;
-		cft->ss = ss;
+		pax_open_kernel();
+		const_cast(cft->kf_ops) = kf_ops;
+		const_cast(cft->ss) = ss;
+		pax_close_kernel();
 	}
 
 	return 0;
@@ -3781,7 +3786,7 @@ static int cgroup_rm_cftypes_locked(struct cftype *cfts)
 	if (!cfts || !cfts[0].ss)
 		return -ENOENT;
 
-	list_del(&cfts->node);
+	pax_list_del((struct list_head *)&cfts->node);
 	cgroup_apply_cftypes(cfts, false);
 	cgroup_exit_cftypes(cfts);
 	return 0;
@@ -3838,7 +3843,7 @@ static int cgroup_add_cftypes(struct cgroup_subsys *ss, struct cftype *cfts)
 
 	mutex_lock(&cgroup_mutex);
 
-	list_add_tail(&cfts->node, &ss->cfts);
+	pax_list_add_tail((struct list_head *)&cfts->node, &ss->cfts);
 	ret = cgroup_apply_cftypes(cfts, true);
 	if (ret)
 		cgroup_rm_cftypes_locked(cfts);
@@ -3859,8 +3864,10 @@ int cgroup_add_dfl_cftypes(struct cgroup_subsys *ss, struct cftype *cfts)
 {
 	struct cftype *cft;
 
+	pax_open_kernel();
 	for (cft = cfts; cft && cft->name[0] != '\0'; cft++)
-		cft->flags |= __CFTYPE_ONLY_ON_DFL;
+		const_cast(cft->flags) |= __CFTYPE_ONLY_ON_DFL;
+	pax_close_kernel();
 	return cgroup_add_cftypes(ss, cfts);
 }
 
@@ -3876,8 +3883,10 @@ int cgroup_add_legacy_cftypes(struct cgroup_subsys *ss, struct cftype *cfts)
 {
 	struct cftype *cft;
 
+	pax_open_kernel();
 	for (cft = cfts; cft && cft->name[0] != '\0'; cft++)
-		cft->flags |= __CFTYPE_NOT_ON_DFL;
+		const_cast(cft->flags) |= __CFTYPE_NOT_ON_DFL;
+	pax_close_kernel();
 	return cgroup_add_cftypes(ss, cfts);
 }
 
@@ -6044,6 +6053,9 @@ static void cgroup_release_agent(struct work_struct *work)
 	if (!pathbuf || !agentbuf)
 		goto out;
 
+	if (agentbuf[0] == '\0')
+		goto out;
+
 	spin_lock_bh(&css_set_lock);
 	path = cgroup_path_ns_locked(cgrp, pathbuf, PATH_MAX, &init_cgroup_ns);
 	spin_unlock_bh(&css_set_lock);
@@ -6463,7 +6475,7 @@ static int cgroup_css_links_read(struct seq_file *seq, void *v)
 		struct task_struct *task;
 		int count = 0;
 
-		seq_printf(seq, "css_set %p\n", cset);
+		seq_printf(seq, "css_set %pK\n", cset);
 
 		list_for_each_entry(task, &cset->tasks, cg_list) {
 			if (count++ > MAX_TASKS_SHOWN_PER_CSS)
diff --git a/kernel/compat.c b/kernel/compat.c
index 333d364..762ec00 100644
--- a/kernel/compat.c
+++ b/kernel/compat.c
@@ -13,6 +13,7 @@
 
 #include <linux/linkage.h>
 #include <linux/compat.h>
+#include <linux/module.h>
 #include <linux/errno.h>
 #include <linux/time.h>
 #include <linux/signal.h>
@@ -220,7 +221,7 @@ static long compat_nanosleep_restart(struct restart_block *restart)
 	mm_segment_t oldfs;
 	long ret;
 
-	restart->nanosleep.rmtp = (struct timespec __user *) &rmt;
+	restart->nanosleep.rmtp = (struct timespec __force_user *) &rmt;
 	oldfs = get_fs();
 	set_fs(KERNEL_DS);
 	ret = hrtimer_nanosleep_restart(restart);
@@ -252,7 +253,7 @@ COMPAT_SYSCALL_DEFINE2(nanosleep, struct compat_timespec __user *, rqtp,
 	oldfs = get_fs();
 	set_fs(KERNEL_DS);
 	ret = hrtimer_nanosleep(&tu,
-				rmtp ? (struct timespec __user *)&rmt : NULL,
+				rmtp ? (struct timespec __force_user *)&rmt : NULL,
 				HRTIMER_MODE_REL, CLOCK_MONOTONIC);
 	set_fs(oldfs);
 
@@ -378,7 +379,7 @@ COMPAT_SYSCALL_DEFINE1(sigpending, compat_old_sigset_t __user *, set)
 	mm_segment_t old_fs = get_fs();
 
 	set_fs(KERNEL_DS);
-	ret = sys_sigpending((old_sigset_t __user *) &s);
+	ret = sys_sigpending((old_sigset_t __force_user *) &s);
 	set_fs(old_fs);
 	if (ret == 0)
 		ret = put_user(s, set);
@@ -468,7 +469,7 @@ COMPAT_SYSCALL_DEFINE2(old_getrlimit, unsigned int, resource,
 	mm_segment_t old_fs = get_fs();
 
 	set_fs(KERNEL_DS);
-	ret = sys_old_getrlimit(resource, (struct rlimit __user *)&r);
+	ret = sys_old_getrlimit(resource, (struct rlimit __force_user *)&r);
 	set_fs(old_fs);
 
 	if (!ret) {
@@ -550,8 +551,8 @@ COMPAT_SYSCALL_DEFINE4(wait4,
 		set_fs (KERNEL_DS);
 		ret = sys_wait4(pid,
 				(stat_addr ?
-				 (unsigned int __user *) &status : NULL),
-				options, (struct rusage __user *) &r);
+				 (unsigned int __force_user *) &status : NULL),
+				options, (struct rusage __force_user *) &r);
 		set_fs (old_fs);
 
 		if (ret > 0) {
@@ -577,8 +578,8 @@ COMPAT_SYSCALL_DEFINE5(waitid,
 	memset(&info, 0, sizeof(info));
 
 	set_fs(KERNEL_DS);
-	ret = sys_waitid(which, pid, (siginfo_t __user *)&info, options,
-			 uru ? (struct rusage __user *)&ru : NULL);
+	ret = sys_waitid(which, pid, (siginfo_t __force_user *)&info, options,
+			 uru ? (struct rusage __force_user *)&ru : NULL);
 	set_fs(old_fs);
 
 	if ((ret < 0) || (info.si_signo == 0))
@@ -712,8 +713,8 @@ COMPAT_SYSCALL_DEFINE4(timer_settime, timer_t, timer_id, int, flags,
 	oldfs = get_fs();
 	set_fs(KERNEL_DS);
 	err = sys_timer_settime(timer_id, flags,
-				(struct itimerspec __user *) &newts,
-				(struct itimerspec __user *) &oldts);
+				(struct itimerspec __force_user *) &newts,
+				(struct itimerspec __force_user *) &oldts);
 	set_fs(oldfs);
 	if (!err && old && put_compat_itimerspec(old, &oldts))
 		return -EFAULT;
@@ -730,7 +731,7 @@ COMPAT_SYSCALL_DEFINE2(timer_gettime, timer_t, timer_id,
 	oldfs = get_fs();
 	set_fs(KERNEL_DS);
 	err = sys_timer_gettime(timer_id,
-				(struct itimerspec __user *) &ts);
+				(struct itimerspec __force_user *) &ts);
 	set_fs(oldfs);
 	if (!err && put_compat_itimerspec(setting, &ts))
 		return -EFAULT;
@@ -749,7 +750,7 @@ COMPAT_SYSCALL_DEFINE2(clock_settime, clockid_t, which_clock,
 	oldfs = get_fs();
 	set_fs(KERNEL_DS);
 	err = sys_clock_settime(which_clock,
-				(struct timespec __user *) &ts);
+				(struct timespec __force_user *) &ts);
 	set_fs(oldfs);
 	return err;
 }
@@ -764,7 +765,7 @@ COMPAT_SYSCALL_DEFINE2(clock_gettime, clockid_t, which_clock,
 	oldfs = get_fs();
 	set_fs(KERNEL_DS);
 	err = sys_clock_gettime(which_clock,
-				(struct timespec __user *) &ts);
+				(struct timespec __force_user *) &ts);
 	set_fs(oldfs);
 	if (!err && compat_put_timespec(&ts, tp))
 		return -EFAULT;
@@ -784,7 +785,7 @@ COMPAT_SYSCALL_DEFINE2(clock_adjtime, clockid_t, which_clock,
 
 	oldfs = get_fs();
 	set_fs(KERNEL_DS);
-	ret = sys_clock_adjtime(which_clock, (struct timex __user *) &txc);
+	ret = sys_clock_adjtime(which_clock, (struct timex __force_user *) &txc);
 	set_fs(oldfs);
 
 	err = compat_put_timex(utp, &txc);
@@ -804,7 +805,7 @@ COMPAT_SYSCALL_DEFINE2(clock_getres, clockid_t, which_clock,
 	oldfs = get_fs();
 	set_fs(KERNEL_DS);
 	err = sys_clock_getres(which_clock,
-			       (struct timespec __user *) &ts);
+			       (struct timespec __force_user *) &ts);
 	set_fs(oldfs);
 	if (!err && tp && compat_put_timespec(&ts, tp))
 		return -EFAULT;
@@ -818,7 +819,7 @@ static long compat_clock_nanosleep_restart(struct restart_block *restart)
 	struct timespec tu;
 	struct compat_timespec __user *rmtp = restart->nanosleep.compat_rmtp;
 
-	restart->nanosleep.rmtp = (struct timespec __user *) &tu;
+	restart->nanosleep.rmtp = (struct timespec __force_user *) &tu;
 	oldfs = get_fs();
 	set_fs(KERNEL_DS);
 	err = clock_nanosleep_restart(restart);
@@ -850,8 +851,8 @@ COMPAT_SYSCALL_DEFINE4(clock_nanosleep, clockid_t, which_clock, int, flags,
 	oldfs = get_fs();
 	set_fs(KERNEL_DS);
 	err = sys_clock_nanosleep(which_clock, flags,
-				  (struct timespec __user *) &in,
-				  (struct timespec __user *) &out);
+				  (struct timespec __force_user *) &in,
+				  (struct timespec __force_user *) &out);
 	set_fs(oldfs);
 
 	if ((err == -ERESTART_RESTARTBLOCK) && rmtp &&
@@ -1147,7 +1148,7 @@ COMPAT_SYSCALL_DEFINE2(sched_rr_get_interval,
 	mm_segment_t old_fs = get_fs();
 
 	set_fs(KERNEL_DS);
-	ret = sys_sched_rr_get_interval(pid, (struct timespec __user *)&t);
+	ret = sys_sched_rr_get_interval(pid, (struct timespec __force_user *)&t);
 	set_fs(old_fs);
 	if (compat_put_timespec(&t, interval))
 		return -EFAULT;
diff --git a/kernel/configs.c b/kernel/configs.c
index c18b1f1..b9a0132 100644
--- a/kernel/configs.c
+++ b/kernel/configs.c
@@ -74,8 +74,19 @@ static int __init ikconfig_init(void)
 	struct proc_dir_entry *entry;
 
 	/* create the current config file */
+#if defined(CONFIG_GRKERNSEC_PROC_ADD) || defined(CONFIG_GRKERNSEC_HIDESYM)
+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_HIDESYM)
+	entry = proc_create("config.gz", S_IFREG | S_IRUSR, NULL,
+			    &ikconfig_file_ops);
+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+	entry = proc_create("config.gz", S_IFREG | S_IRUSR | S_IRGRP, NULL,
+			    &ikconfig_file_ops);
+#endif
+#else
 	entry = proc_create("config.gz", S_IFREG | S_IRUGO, NULL,
 			    &ikconfig_file_ops);
+#endif
+
 	if (!entry)
 		return -ENOMEM;
 
diff --git a/kernel/cred.c b/kernel/cred.c
index 0c0cd8a..faf7245 100644
--- a/kernel/cred.c
+++ b/kernel/cred.c
@@ -172,6 +172,15 @@ void exit_creds(struct task_struct *tsk)
 	validate_creds(cred);
 	alter_cred_subscribers(cred, -1);
 	put_cred(cred);
+
+#ifdef CONFIG_GRKERNSEC_SETXID
+	cred = (struct cred *) tsk->delayed_cred;
+	if (cred != NULL) {
+		tsk->delayed_cred = NULL;
+		validate_creds(cred);
+		put_cred(cred);
+	}
+#endif
 }
 
 /**
@@ -419,7 +428,7 @@ static bool cred_cap_issubset(const struct cred *set, const struct cred *subset)
  * Always returns 0 thus allowing this function to be tail-called at the end
  * of, say, sys_setgid().
  */
-int commit_creds(struct cred *new)
+static int __commit_creds(struct cred *new)
 {
 	struct task_struct *task = current;
 	const struct cred *old = task->real_cred;
@@ -438,6 +447,8 @@ int commit_creds(struct cred *new)
 
 	get_cred(new); /* we will require a ref for the subj creds too */
 
+	gr_set_role_label(task, new->uid, new->gid);
+
 	/* dumpability changes */
 	if (!uid_eq(old->euid, new->euid) ||
 	    !gid_eq(old->egid, new->egid) ||
@@ -487,6 +498,105 @@ int commit_creds(struct cred *new)
 	put_cred(old);
 	return 0;
 }
+#ifdef CONFIG_GRKERNSEC_SETXID
+extern int set_user(struct cred *new);
+
+void gr_delayed_cred_worker(void)
+{
+	const struct cred *new = current->delayed_cred;
+	struct cred *ncred;
+
+	current->delayed_cred = NULL;
+
+	if (!uid_eq(current_uid(), GLOBAL_ROOT_UID) && new != NULL) {
+		// from doing get_cred on it when queueing this
+		put_cred(new);
+		return;
+	} else if (new == NULL)
+		return;
+
+	ncred = prepare_creds();
+	if (!ncred)
+		goto die;
+	// uids
+	ncred->uid = new->uid;
+	ncred->euid = new->euid;
+	ncred->suid = new->suid;
+	ncred->fsuid = new->fsuid;
+	// gids
+	ncred->gid = new->gid;
+	ncred->egid = new->egid;
+	ncred->sgid = new->sgid;
+	ncred->fsgid = new->fsgid;
+	// groups
+	set_groups(ncred, new->group_info);
+	// caps
+	ncred->securebits = new->securebits;
+	ncred->cap_inheritable = new->cap_inheritable;
+	ncred->cap_permitted = new->cap_permitted;
+	ncred->cap_effective = new->cap_effective;
+	ncred->cap_bset = new->cap_bset;
+
+	if (set_user(ncred)) {
+		abort_creds(ncred);
+		goto die;
+	}
+
+	// from doing get_cred on it when queueing this
+	put_cred(new);
+
+	__commit_creds(ncred);
+	return;
+die:
+	// from doing get_cred on it when queueing this
+	put_cred(new);
+	do_group_exit(SIGKILL);
+}
+#endif
+
+int commit_creds(struct cred *new)
+{
+#ifdef CONFIG_GRKERNSEC_SETXID
+	int ret;
+	int schedule_it = 0;
+	struct task_struct *t;
+	unsigned oldsecurebits = current_cred()->securebits;
+
+	/* we won't get called with tasklist_lock held for writing
+	   and interrupts disabled as the cred struct in that case is
+	   init_cred
+	*/
+	if (grsec_enable_setxid && !current_is_single_threaded() &&
+	    uid_eq(current_uid(), GLOBAL_ROOT_UID) &&
+	    !uid_eq(new->uid, GLOBAL_ROOT_UID)) {
+		schedule_it = 1;
+	}
+	ret = __commit_creds(new);
+	if (schedule_it) {
+		rcu_read_lock();
+		read_lock(&tasklist_lock);
+		for (t = next_thread(current); t != current;
+		     t = next_thread(t)) {
+			/* we'll check if the thread has uid 0 in
+			 * the delayed worker routine
+			 */
+			if (task_securebits(t) == oldsecurebits &&
+			    t->delayed_cred == NULL) {
+				t->delayed_cred = get_cred(new);
+				set_tsk_thread_flag(t, TIF_GRSEC_SETXID);
+				set_tsk_need_resched(t);
+			}
+		}
+		read_unlock(&tasklist_lock);
+		rcu_read_unlock();
+	}
+
+	return ret;
+#else
+	return __commit_creds(new);
+#endif
+}
+
 EXPORT_SYMBOL(commit_creds);
 
 /**
diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c
index 0874e2e..5b32cc9 100644
--- a/kernel/debug/debug_core.c
+++ b/kernel/debug/debug_core.c
@@ -127,7 +127,7 @@ static DEFINE_RAW_SPINLOCK(dbg_slave_lock);
  */
 static atomic_t			masters_in_kgdb;
 static atomic_t			slaves_in_kgdb;
-static atomic_t			kgdb_break_tasklet_var;
+static atomic_unchecked_t	kgdb_break_tasklet_var;
 atomic_t			kgdb_setting_breakpoint;
 
 struct task_struct		*kgdb_usethread;
@@ -137,7 +137,7 @@ int				kgdb_single_step;
 static pid_t			kgdb_sstep_pid;
 
 /* to keep track of the CPU which is doing the single stepping*/
-atomic_t			kgdb_cpu_doing_single_step = ATOMIC_INIT(-1);
+atomic_unchecked_t		kgdb_cpu_doing_single_step = ATOMIC_INIT(-1);
 
 /*
  * If you are debugging a problem where roundup (the collection of
@@ -552,7 +552,7 @@ return_normal:
 	 * kernel will only try for the value of sstep_tries before
 	 * giving up and continuing on.
 	 */
-	if (atomic_read(&kgdb_cpu_doing_single_step) != -1 &&
+	if (atomic_read_unchecked(&kgdb_cpu_doing_single_step) != -1 &&
 	    (kgdb_info[cpu].task &&
 	     kgdb_info[cpu].task->pid != kgdb_sstep_pid) && --sstep_tries) {
 		atomic_set(&kgdb_active, -1);
@@ -654,8 +654,8 @@ cpu_master_loop:
 	}
 
 kgdb_restore:
-	if (atomic_read(&kgdb_cpu_doing_single_step) != -1) {
-		int sstep_cpu = atomic_read(&kgdb_cpu_doing_single_step);
+	if (atomic_read_unchecked(&kgdb_cpu_doing_single_step) != -1) {
+		int sstep_cpu = atomic_read_unchecked(&kgdb_cpu_doing_single_step);
 		if (kgdb_info[sstep_cpu].task)
 			kgdb_sstep_pid = kgdb_info[sstep_cpu].task->pid;
 		else
@@ -949,18 +949,18 @@ static void kgdb_unregister_callbacks(void)
 static void kgdb_tasklet_bpt(unsigned long ing)
 {
 	kgdb_breakpoint();
-	atomic_set(&kgdb_break_tasklet_var, 0);
+	atomic_set_unchecked(&kgdb_break_tasklet_var, 0);
 }
 
 static DECLARE_TASKLET(kgdb_tasklet_breakpoint, kgdb_tasklet_bpt, 0);
 
 void kgdb_schedule_breakpoint(void)
 {
-	if (atomic_read(&kgdb_break_tasklet_var) ||
+	if (atomic_read_unchecked(&kgdb_break_tasklet_var) ||
 		atomic_read(&kgdb_active) != -1 ||
 		atomic_read(&kgdb_setting_breakpoint))
 		return;
-	atomic_inc(&kgdb_break_tasklet_var);
+	atomic_inc_unchecked(&kgdb_break_tasklet_var);
 	tasklet_schedule(&kgdb_tasklet_breakpoint);
 }
 EXPORT_SYMBOL_GPL(kgdb_schedule_breakpoint);
diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
index 2a20c0d..3eb7d03 100644
--- a/kernel/debug/kdb/kdb_main.c
+++ b/kernel/debug/kdb/kdb_main.c
@@ -2021,7 +2021,7 @@ static int kdb_lsmod(int argc, const char **argv)
 			continue;
 
 		kdb_printf("%-20s%8u  0x%p ", mod->name,
-			   mod->core_layout.size, (void *)mod);
+			   mod->core_layout.size_rx + mod->core_layout.size_rw, (void *)mod);
 #ifdef CONFIG_MODULE_UNLOAD
 		kdb_printf("%4d ", module_refcount(mod));
 #endif
@@ -2031,7 +2031,7 @@ static int kdb_lsmod(int argc, const char **argv)
 			kdb_printf(" (Loading)");
 		else
 			kdb_printf(" (Live)");
-		kdb_printf(" 0x%p", mod->core_layout.base);
+		kdb_printf(" 0x%p 0x%p", mod->core_layout.base_rx, mod->core_layout.base_rw);
 
 #ifdef CONFIG_MODULE_UNLOAD
 		{
diff --git a/kernel/events/core.c b/kernel/events/core.c
index c0ded24..9a8ef89 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -350,8 +350,15 @@ static struct srcu_struct pmus_srcu;
  *   0 - disallow raw tracepoint access for unpriv
  *   1 - disallow cpu events for unpriv
  *   2 - disallow kernel profiling for unpriv
+ *   3 - disallow all unpriv perf event use
  */
-int sysctl_perf_event_paranoid __read_mostly = 2;
+#ifdef CONFIG_GRKERNSEC_PERF_HARDEN
+int sysctl_perf_event_legitimately_concerned __read_only = 3;
+#elif defined(CONFIG_GRKERNSEC_HIDESYM)
+int sysctl_perf_event_legitimately_concerned __read_only = 2;
+#else
+int sysctl_perf_event_legitimately_concerned __read_only = 2;
+#endif
 
 /* Minimum for 512 kiB + 1 user control page */
 int sysctl_perf_event_mlock __read_mostly = 512 + (PAGE_SIZE / 1024); /* 'free' kiB per user */
@@ -499,7 +506,7 @@ void perf_sample_event_took(u64 sample_len_ns)
 	}
 }
 
-static atomic64_t perf_event_id;
+static atomic64_unchecked_t perf_event_id;
 
 static void cpu_ctx_sched_out(struct perf_cpu_context *cpuctx,
 			      enum event_type_t event_type);
@@ -965,8 +972,9 @@ static void __perf_mux_hrtimer_init(struct perf_cpu_context *cpuctx, int cpu)
 	timer->function = perf_mux_hrtimer_handler;
 }
 
-static int perf_mux_hrtimer_restart(struct perf_cpu_context *cpuctx)
+static int perf_mux_hrtimer_restart(void *_cpuctx)
 {
+	struct perf_cpu_context *cpuctx = _cpuctx;
 	struct hrtimer *timer = &cpuctx->hrtimer;
 	struct pmu *pmu = cpuctx->ctx.pmu;
 	unsigned long flags;
@@ -2910,7 +2918,7 @@ void __perf_event_task_sched_in(struct task_struct *prev,
 		perf_pmu_sched_task(prev, task, true);
 }
 
-static u64 perf_calculate_period(struct perf_event *event, u64 nsec, u64 count)
+static u64 perf_calculate_period(const struct perf_event *event, u64 nsec, u64 count)
 {
 	u64 frequency = event->attr.sample_freq;
 	u64 sec = NSEC_PER_SEC;
@@ -3963,9 +3971,9 @@ u64 perf_event_read_value(struct perf_event *event, u64 *enabled, u64 *running)
 	total += perf_event_count(event);
 
 	*enabled += event->total_time_enabled +
-			atomic64_read(&event->child_total_time_enabled);
+			atomic64_read_unchecked(&event->child_total_time_enabled);
 	*running += event->total_time_running +
-			atomic64_read(&event->child_total_time_running);
+			atomic64_read_unchecked(&event->child_total_time_running);
 
 	list_for_each_entry(child, &event->child_list, child_list) {
 		(void)perf_event_read(child, false);
@@ -3997,12 +4005,12 @@ static int __perf_read_group_add(struct perf_event *leader,
 	 */
 	if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) {
 		values[n++] += leader->total_time_enabled +
-			atomic64_read(&leader->child_total_time_enabled);
+			atomic64_read_unchecked(&leader->child_total_time_enabled);
 	}
 
 	if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) {
 		values[n++] += leader->total_time_running +
-			atomic64_read(&leader->child_total_time_running);
+			atomic64_read_unchecked(&leader->child_total_time_running);
 	}
 
 	/*
@@ -4512,10 +4520,10 @@ void perf_event_update_userpage(struct perf_event *event)
 		userpg->offset -= local64_read(&event->hw.prev_count);
 
 	userpg->time_enabled = enabled +
-			atomic64_read(&event->child_total_time_enabled);
+			atomic64_read_unchecked(&event->child_total_time_enabled);
 
 	userpg->time_running = running +
-			atomic64_read(&event->child_total_time_running);
+			atomic64_read_unchecked(&event->child_total_time_running);
 
 	arch_perf_update_userpage(event, userpg, now);
 
@@ -5190,7 +5198,7 @@ perf_output_sample_ustack(struct perf_output_handle *handle, u64 dump_size,
 
 		/* Data. */
 		sp = perf_user_stack_pointer(regs);
-		rem = __output_copy_user(handle, (void *) sp, dump_size);
+		rem = __output_copy_user(handle, (void __user *) sp, dump_size);
 		dyn_size = dump_size - rem;
 
 		perf_output_skip(handle, rem);
@@ -5281,11 +5289,11 @@ static void perf_output_read_one(struct perf_output_handle *handle,
 	values[n++] = perf_event_count(event);
 	if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) {
 		values[n++] = enabled +
-			atomic64_read(&event->child_total_time_enabled);
+			atomic64_read_unchecked(&event->child_total_time_enabled);
 	}
 	if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) {
 		values[n++] = running +
-			atomic64_read(&event->child_total_time_running);
+			atomic64_read_unchecked(&event->child_total_time_running);
 	}
 	if (read_format & PERF_FORMAT_ID)
 		values[n++] = primary_event_id(event);
@@ -7594,8 +7602,7 @@ perf_event_mux_interval_ms_store(struct device *dev,
 		cpuctx = per_cpu_ptr(pmu->pmu_cpu_context, cpu);
 		cpuctx->hrtimer_interval = ns_to_ktime(NSEC_PER_MSEC * timer);
 
-		cpu_function_call(cpu,
-			(remote_function_f)perf_mux_hrtimer_restart, cpuctx);
+		cpu_function_call(cpu, perf_mux_hrtimer_restart, cpuctx);
 	}
 	put_online_cpus();
 	mutex_unlock(&mux_interval_mutex);
@@ -7983,7 +7990,7 @@ perf_event_alloc(struct perf_event_attr *attr, int cpu,
 	event->parent		= parent_event;
 
 	event->ns		= get_pid_ns(task_active_pid_ns(current));
-	event->id		= atomic64_inc_return(&perf_event_id);
+	event->id		= atomic64_inc_return_unchecked(&perf_event_id);
 
 	event->state		= PERF_EVENT_STATE_INACTIVE;
 
@@ -8345,6 +8352,11 @@ SYSCALL_DEFINE5(perf_event_open,
 	if (flags & ~PERF_FLAG_ALL)
 		return -EINVAL;
 
+#ifdef CONFIG_GRKERNSEC_PERF_HARDEN
+	if (perf_paranoid_any() && !capable(CAP_SYS_ADMIN))
+		return -EACCES;
+#endif
+
 	err = perf_copy_attr(attr_uptr, &attr);
 	if (err)
 		return err;
@@ -8859,10 +8871,10 @@ static void sync_child_event(struct perf_event *child_event,
 	/*
 	 * Add back the child's count to the parent's count:
 	 */
-	atomic64_add(child_val, &parent_event->child_count);
-	atomic64_add(child_event->total_time_enabled,
+	atomic64_add_unchecked(child_val, &parent_event->child_count);
+	atomic64_add_unchecked(child_event->total_time_enabled,
 		     &parent_event->child_total_time_enabled);
-	atomic64_add(child_event->total_time_running,
+	atomic64_add_unchecked(child_event->total_time_running,
 		     &parent_event->child_total_time_running);
 }
 
diff --git a/kernel/events/internal.h b/kernel/events/internal.h
index 4199b6d..a4bfd7e 100644
--- a/kernel/events/internal.h
+++ b/kernel/events/internal.h
@@ -115,10 +115,10 @@ static inline unsigned long perf_aux_size(struct ring_buffer *rb)
 	return rb->aux_nr_pages << PAGE_SHIFT;
 }
 
-#define DEFINE_OUTPUT_COPY(func_name, memcpy_func)			\
+#define DEFINE_OUTPUT_COPY(func_name, memcpy_func, user)		\
 static inline unsigned long						\
 func_name(struct perf_output_handle *handle,				\
-	  const void *buf, unsigned long len)				\
+	  const void user *buf, unsigned long len)			\
 {									\
 	unsigned long size, written;					\
 									\
@@ -151,7 +151,7 @@ memcpy_common(void *dst, const void *src, unsigned long n)
 	return 0;
 }
 
-DEFINE_OUTPUT_COPY(__output_copy, memcpy_common)
+DEFINE_OUTPUT_COPY(__output_copy, memcpy_common, )
 
 static inline unsigned long
 memcpy_skip(void *dst, const void *src, unsigned long n)
@@ -159,7 +159,7 @@ memcpy_skip(void *dst, const void *src, unsigned long n)
 	return 0;
 }
 
-DEFINE_OUTPUT_COPY(__output_skip, memcpy_skip)
+DEFINE_OUTPUT_COPY(__output_skip, memcpy_skip, )
 
 #ifndef arch_perf_out_copy_user
 #define arch_perf_out_copy_user arch_perf_out_copy_user
@@ -177,7 +177,7 @@ arch_perf_out_copy_user(void *dst, const void *src, unsigned long n)
 }
 #endif
 
-DEFINE_OUTPUT_COPY(__output_copy_user, arch_perf_out_copy_user)
+DEFINE_OUTPUT_COPY(__output_copy_user, arch_perf_out_copy_user, __user)
 
 /* Callchain handling */
 extern struct perf_callchain_entry *
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index 7edc95e..1313732 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -1691,7 +1691,7 @@ static int is_trap_at_addr(struct mm_struct *mm, unsigned long vaddr)
 {
 	struct page *page;
 	uprobe_opcode_t opcode;
-	int result;
+	long result;
 
 	pagefault_disable();
 	result = __copy_from_user_inatomic(&opcode, (void __user*)vaddr,
diff --git a/kernel/exit.c b/kernel/exit.c
index 79c7e38..e8a4ef023 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -170,6 +170,10 @@ void release_task(struct task_struct *p)
 	struct task_struct *leader;
 	int zap_leader;
 repeat:
+#ifdef CONFIG_NET
+	gr_del_task_from_ip_table(p);
+#endif
+
 	/* don't need to get the RCU readlock here - the process is dead and
 	 * can't be modifying its own credentials. But shut RCU-lockdep up */
 	rcu_read_lock();
@@ -449,9 +453,8 @@ static struct task_struct *find_alive_thread(struct task_struct *p)
 	return NULL;
 }
 
+static struct task_struct *find_child_reaper(struct task_struct *father) __must_hold(&tasklist_lock);
 static struct task_struct *find_child_reaper(struct task_struct *father)
-	__releases(&tasklist_lock)
-	__acquires(&tasklist_lock)
 {
 	struct pid_namespace *pid_ns = task_active_pid_ns(father);
 	struct task_struct *reaper = pid_ns->child_reaper;
@@ -548,6 +551,8 @@ static void reparent_leader(struct task_struct *father, struct task_struct *p,
  *	jobs, send them a SIGHUP and then a SIGCONT.  (POSIX 3.2.2.2)
  */
 static void forget_original_parent(struct task_struct *father,
+					struct list_head *dead) __must_hold(&tasklist_lock);
+static void forget_original_parent(struct task_struct *father,
 					struct list_head *dead)
 {
 	struct task_struct *p, *t, *reaper;
@@ -655,6 +660,8 @@ void do_exit(long code)
 	int group_dead;
 	TASKS_RCU(int tasks_rcu_i);
 
+	set_fs(USER_DS);
+
 	profile_task_exit(tsk);
 	kcov_task_exit(tsk);
 
@@ -672,7 +679,6 @@ void do_exit(long code)
 	 * mm_release()->clear_child_tid() from writing to a user-controlled
 	 * kernel address.
 	 */
-	set_fs(USER_DS);
 
 	ptrace_event(PTRACE_EVENT_EXIT, code);
 
@@ -732,6 +738,9 @@ void do_exit(long code)
 	tsk->exit_code = code;
 	taskstats_exit(tsk, group_dead);
 
+	gr_acl_handle_psacct(tsk, code);
+	gr_acl_handle_exit();
+
 	exit_mm(tsk);
 
 	if (group_dead)
@@ -851,7 +860,7 @@ SYSCALL_DEFINE1(exit, int, error_code)
  * Take down every thread in the group.  This is called by fatal signals
  * as well as by sys_exit_group (below).
  */
-void
+__noreturn void
 do_group_exit(int exit_code)
 {
 	struct signal_struct *sig = current->signal;
@@ -979,6 +988,7 @@ static int wait_noreap_copyout(struct wait_opts *wo, struct task_struct *p,
  * the lock and this task is uninteresting.  If we return nonzero, we have
  * released the lock and the system call should return.
  */
+static int wait_task_zombie(struct wait_opts *wo, struct task_struct *p) __must_hold(&tasklist_lock);
 static int wait_task_zombie(struct wait_opts *wo, struct task_struct *p)
 {
 	int state, retval, status;
@@ -995,6 +1005,7 @@ static int wait_task_zombie(struct wait_opts *wo, struct task_struct *p)
 
 		get_task_struct(p);
 		read_unlock(&tasklist_lock);
+		__acquire(&tasklist_lock); // XXX sparse can't model conditional release
 		sched_annotate_sleep();
 
 		if ((exit_code & 0x7f) == 0) {
@@ -1017,6 +1028,7 @@ static int wait_task_zombie(struct wait_opts *wo, struct task_struct *p)
 	 * We own this thread, nobody else can reap it.
 	 */
 	read_unlock(&tasklist_lock);
+	__acquire(&tasklist_lock); // XXX sparse can't model conditional release
 	sched_annotate_sleep();
 
 	/*
@@ -1159,6 +1171,8 @@ static int *task_stopped_code(struct task_struct *p, bool ptrace)
  * search should terminate.
  */
 static int wait_task_stopped(struct wait_opts *wo,
+				int ptrace, struct task_struct *p) __must_hold(&tasklist_lock);
+static int wait_task_stopped(struct wait_opts *wo,
 				int ptrace, struct task_struct *p)
 {
 	struct siginfo __user *infop;
@@ -1206,6 +1220,7 @@ unlock_sig:
 	pid = task_pid_vnr(p);
 	why = ptrace ? CLD_TRAPPED : CLD_STOPPED;
 	read_unlock(&tasklist_lock);
+	__acquire(&tasklist_lock); // XXX sparse can't model conditional release
 	sched_annotate_sleep();
 
 	if (unlikely(wo->wo_flags & WNOWAIT))
@@ -1243,6 +1258,7 @@ unlock_sig:
  * the lock and this task is uninteresting.  If we return nonzero, we have
  * released the lock and the system call should return.
  */
+static int wait_task_continued(struct wait_opts *wo, struct task_struct *p) __must_hold(&tasklist_lock);
 static int wait_task_continued(struct wait_opts *wo, struct task_struct *p)
 {
 	int retval;
@@ -1269,6 +1285,7 @@ static int wait_task_continued(struct wait_opts *wo, struct task_struct *p)
 	pid = task_pid_vnr(p);
 	get_task_struct(p);
 	read_unlock(&tasklist_lock);
+	__acquire(&tasklist_lock); // XXX sparse can't model conditional release
 	sched_annotate_sleep();
 
 	if (!wo->wo_info) {
@@ -1298,6 +1315,8 @@ static int wait_task_continued(struct wait_opts *wo, struct task_struct *p)
  * or another error from security_task_wait(), or still -ECHILD.
  */
 static int wait_consider_task(struct wait_opts *wo, int ptrace,
+				struct task_struct *p) __must_hold(&tasklist_lock);
+static int wait_consider_task(struct wait_opts *wo, int ptrace,
 				struct task_struct *p)
 {
 	/*
@@ -1423,6 +1442,7 @@ static int wait_consider_task(struct wait_opts *wo, int ptrace,
  * ->notask_error is 0 if there were any eligible children,
  * or another error from security_task_wait(), or still -ECHILD.
  */
+static int do_wait_thread(struct wait_opts *wo, struct task_struct *tsk) __must_hold(&tasklist_lock);
 static int do_wait_thread(struct wait_opts *wo, struct task_struct *tsk)
 {
 	struct task_struct *p;
@@ -1437,6 +1457,7 @@ static int do_wait_thread(struct wait_opts *wo, struct task_struct *tsk)
 	return 0;
 }
 
+static int ptrace_do_wait(struct wait_opts *wo, struct task_struct *tsk) __must_hold(&tasklist_lock);
 static int ptrace_do_wait(struct wait_opts *wo, struct task_struct *tsk)
 {
 	struct task_struct *p;
@@ -1500,12 +1521,16 @@ repeat:
 	tsk = current;
 	do {
 		retval = do_wait_thread(wo, tsk);
-		if (retval)
+		if (retval) {
+			__release(&tasklist_lock); // XXX sparse can't model conditional release
 			goto end;
+		}
 
 		retval = ptrace_do_wait(wo, tsk);
-		if (retval)
+		if (retval) {
+			__release(&tasklist_lock); // XXX sparse can't model conditional release
 			goto end;
+		}
 
 		if (wo->wo_flags & __WNOTHREAD)
 			break;
diff --git a/kernel/fork.c b/kernel/fork.c
index d277e83..824b594 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -197,12 +197,55 @@ static void free_thread_info(struct thread_info *ti)
 void thread_info_cache_init(void)
 {
 	thread_info_cache = kmem_cache_create("thread_info", THREAD_SIZE,
-					      THREAD_SIZE, 0, NULL);
+					      THREAD_SIZE, SLAB_USERCOPY, NULL);
 	BUG_ON(thread_info_cache == NULL);
 }
 # endif
 #endif
 
+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
+static inline struct thread_info *gr_alloc_thread_info_node(struct task_struct *tsk,
+						  int node, void **lowmem_stack)
+{
+	struct page *pages[THREAD_SIZE / PAGE_SIZE];
+	void *ret = NULL;
+	unsigned int i;
+
+	*lowmem_stack = alloc_thread_info_node(tsk, node);
+	if (*lowmem_stack == NULL)
+		goto out;
+
+	for (i = 0; i < THREAD_SIZE / PAGE_SIZE; i++)
+		pages[i] = virt_to_page(*lowmem_stack + (i * PAGE_SIZE));
+	
+	/* use VM_IOREMAP to gain THREAD_SIZE alignment */
+	ret = vmap(pages, THREAD_SIZE / PAGE_SIZE, VM_IOREMAP, PAGE_KERNEL);
+	if (ret == NULL) {
+		free_thread_info(*lowmem_stack);
+		*lowmem_stack = NULL;
+	} else
+		populate_stack(ret);
+
+out:
+	return ret;
+}
+
+static inline void gr_free_thread_info(struct task_struct *tsk, struct thread_info *ti)
+{
+	unmap_process_stacks(tsk);
+}
+#else
+static inline struct thread_info *gr_alloc_thread_info_node(struct task_struct *tsk,
+						  int node, void **lowmem_stack)
+{
+	return alloc_thread_info_node(tsk, node);
+}
+static inline void gr_free_thread_info(struct task_struct *tsk, struct thread_info *ti)
+{
+	free_thread_info(ti);
+}
+#endif
+
 /* SLAB cache for signal_struct structures (tsk->signal) */
 static struct kmem_cache *signal_cachep;
 
@@ -221,18 +264,22 @@ struct kmem_cache *vm_area_cachep;
 /* SLAB cache for mm_struct structures (tsk->mm) */
 static struct kmem_cache *mm_cachep;
 
-static void account_kernel_stack(struct thread_info *ti, int account)
+static void account_kernel_stack(struct task_struct *tsk, struct thread_info *ti, int account)
 {
+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
+	struct zone *zone = page_zone(virt_to_page(tsk->lowmem_stack));
+#else
 	struct zone *zone = page_zone(virt_to_page(ti));
+#endif
 
 	mod_zone_page_state(zone, NR_KERNEL_STACK, account);
 }
 
 void free_task(struct task_struct *tsk)
 {
-	account_kernel_stack(tsk->stack, -1);
+	account_kernel_stack(tsk, tsk->stack, -1);
 	arch_release_thread_info(tsk->stack);
-	free_thread_info(tsk->stack);
+	gr_free_thread_info(tsk, tsk->stack);
 	rt_mutex_debug_task_free(tsk);
 	ftrace_graph_exit_task(tsk);
 	put_seccomp_filter(tsk);
@@ -299,7 +346,7 @@ static void set_max_threads(unsigned int max_threads_suggested)
 
 #ifdef CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT
 /* Initialized by the architecture: */
-int arch_task_struct_size __read_mostly;
+size_t arch_task_struct_size __read_mostly;
 #endif
 
 void __init fork_init(void)
@@ -344,6 +391,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
 {
 	struct task_struct *tsk;
 	struct thread_info *ti;
+	void *lowmem_stack;
 	int node = tsk_fork_get_node(orig);
 	int err;
 
@@ -351,7 +399,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
 	if (!tsk)
 		return NULL;
 
-	ti = alloc_thread_info_node(tsk, node);
+	ti = gr_alloc_thread_info_node(tsk, node, &lowmem_stack);
 	if (!ti)
 		goto free_tsk;
 
@@ -360,6 +408,9 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
 		goto free_ti;
 
 	tsk->stack = ti;
+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
+	tsk->lowmem_stack = lowmem_stack;
+#endif
 #ifdef CONFIG_SECCOMP
 	/*
 	 * We must handle setting up seccomp filters once we're under
@@ -376,7 +427,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
 	set_task_stack_end_magic(tsk);
 
 #ifdef CONFIG_CC_STACKPROTECTOR
-	tsk->stack_canary = get_random_int();
+	tsk->stack_canary = pax_get_random_long();
 #endif
 
 	/*
@@ -391,26 +442,92 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
 	tsk->task_frag.page = NULL;
 	tsk->wake_q.next = NULL;
 
-	account_kernel_stack(ti, 1);
+	account_kernel_stack(tsk, ti, 1);
 
 	kcov_task_init(tsk);
 
 	return tsk;
 
 free_ti:
-	free_thread_info(ti);
+	gr_free_thread_info(tsk, ti);
 free_tsk:
 	free_task_struct(tsk);
 	return NULL;
 }
 
 #ifdef CONFIG_MMU
-static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
+static struct vm_area_struct *dup_vma(struct mm_struct *mm, struct mm_struct *oldmm, struct vm_area_struct *mpnt)
+{
+	struct vm_area_struct *tmp;
+	unsigned long charge;
+	struct file *file;
+	int retval;
+
+	charge = 0;
+	if (mpnt->vm_flags & VM_ACCOUNT) {
+		unsigned long len = vma_pages(mpnt);
+
+		if (security_vm_enough_memory_mm(oldmm, len)) /* sic */
+			goto fail_nomem;
+		charge = len;
+	}
+	tmp = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
+	if (!tmp)
+		goto fail_nomem;
+	*tmp = *mpnt;
+	tmp->vm_mm = mm;
+	INIT_LIST_HEAD(&tmp->anon_vma_chain);
+	retval = vma_dup_policy(mpnt, tmp);
+	if (retval)
+		goto fail_nomem_policy;
+	if (anon_vma_fork(tmp, mpnt))
+		goto fail_nomem_anon_vma_fork;
+	tmp->vm_flags &= ~(VM_LOCKED|VM_LOCKONFAULT|VM_UFFD_MISSING|VM_UFFD_WP);
+	tmp->vm_next = tmp->vm_prev = NULL;
+	tmp->vm_mirror = NULL;
+	tmp->vm_userfaultfd_ctx = NULL_VM_UFFD_CTX;
+	file = tmp->vm_file;
+	if (file) {
+		struct inode *inode = file_inode(file);
+		struct address_space *mapping = file->f_mapping;
+
+		get_file(file);
+		if (tmp->vm_flags & VM_DENYWRITE)
+			atomic_dec(&inode->i_writecount);
+		i_mmap_lock_write(mapping);
+		if (tmp->vm_flags & VM_SHARED)
+			atomic_inc(&mapping->i_mmap_writable);
+		flush_dcache_mmap_lock(mapping);
+		/* insert tmp into the share list, just after mpnt */
+		vma_interval_tree_insert_after(tmp, mpnt, &mapping->i_mmap);
+		flush_dcache_mmap_unlock(mapping);
+		i_mmap_unlock_write(mapping);
+	}
+
+	/*
+	 * Clear hugetlb-related page reserves for children. This only
+	 * affects MAP_PRIVATE mappings. Faults generated by the child
+	 * are not guaranteed to succeed, even if read-only
+	 */
+	if (is_vm_hugetlb_page(tmp))
+		reset_vma_resv_huge_pages(tmp);
+
+	return tmp;
+
+fail_nomem_anon_vma_fork:
+	mpol_put(vma_policy(tmp));
+fail_nomem_policy:
+	kmem_cache_free(vm_area_cachep, tmp);
+fail_nomem:
+	vm_unacct_memory(charge);
+	return NULL;
+}
+
+static __latent_entropy int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
 {
 	struct vm_area_struct *mpnt, *tmp, *prev, **pprev;
 	struct rb_node **rb_link, *rb_parent;
 	int retval;
-	unsigned long charge;
 
 	uprobe_start_dup_mmap();
 	down_write(&oldmm->mmap_sem);
@@ -441,52 +558,14 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
 
 	prev = NULL;
 	for (mpnt = oldmm->mmap; mpnt; mpnt = mpnt->vm_next) {
-		struct file *file;
-
 		if (mpnt->vm_flags & VM_DONTCOPY) {
 			vm_stat_account(mm, mpnt->vm_flags, -vma_pages(mpnt));
 			continue;
 		}
-		charge = 0;
-		if (mpnt->vm_flags & VM_ACCOUNT) {
-			unsigned long len = vma_pages(mpnt);
-
-			if (security_vm_enough_memory_mm(oldmm, len)) /* sic */
-				goto fail_nomem;
-			charge = len;
-		}
-		tmp = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
-		if (!tmp)
-			goto fail_nomem;
-		*tmp = *mpnt;
-		INIT_LIST_HEAD(&tmp->anon_vma_chain);
-		retval = vma_dup_policy(mpnt, tmp);
-		if (retval)
-			goto fail_nomem_policy;
-		tmp->vm_mm = mm;
-		if (anon_vma_fork(tmp, mpnt))
-			goto fail_nomem_anon_vma_fork;
-		tmp->vm_flags &=
-			~(VM_LOCKED|VM_LOCKONFAULT|VM_UFFD_MISSING|VM_UFFD_WP);
-		tmp->vm_next = tmp->vm_prev = NULL;
-		tmp->vm_userfaultfd_ctx = NULL_VM_UFFD_CTX;
-		file = tmp->vm_file;
-		if (file) {
-			struct inode *inode = file_inode(file);
-			struct address_space *mapping = file->f_mapping;
-
-			get_file(file);
-			if (tmp->vm_flags & VM_DENYWRITE)
-				atomic_dec(&inode->i_writecount);
-			i_mmap_lock_write(mapping);
-			if (tmp->vm_flags & VM_SHARED)
-				atomic_inc(&mapping->i_mmap_writable);
-			flush_dcache_mmap_lock(mapping);
-			/* insert tmp into the share list, just after mpnt */
-			vma_interval_tree_insert_after(tmp, mpnt,
-					&mapping->i_mmap);
-			flush_dcache_mmap_unlock(mapping);
-			i_mmap_unlock_write(mapping);
+		tmp = dup_vma(mm, oldmm, mpnt);
+		if (!tmp) {
+			retval = -ENOMEM;
+			goto out;
 		}
 
 		/*
@@ -518,6 +597,38 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
 		if (retval)
 			goto out;
 	}
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (oldmm->pax_flags & MF_PAX_SEGMEXEC) {
+		struct vm_area_struct *mpnt_m;
+
+		for (mpnt = oldmm->mmap, mpnt_m = mm->mmap; mpnt; mpnt = mpnt->vm_next) {
+			if (mpnt->vm_flags & VM_DONTCOPY)
+				continue;
+
+			BUG_ON(!mpnt_m || mpnt_m->vm_mirror || mpnt->vm_mm != oldmm || mpnt_m->vm_mm != mm);
+
+			if (!mpnt->vm_mirror) {
+				mpnt_m = mpnt_m->vm_next;
+				continue;
+			}
+
+			if (mpnt->vm_end <= SEGMEXEC_TASK_SIZE) {
+				BUG_ON(mpnt->vm_mirror->vm_mirror != mpnt);
+				mpnt->vm_mirror = mpnt_m;
+			} else {
+				BUG_ON(mpnt->vm_mirror->vm_mirror == mpnt || mpnt->vm_mirror->vm_mirror->vm_mm != mm);
+				mpnt_m->vm_mirror = mpnt->vm_mirror->vm_mirror;
+				mpnt_m->vm_mirror->vm_mirror = mpnt_m;
+				mpnt->vm_mirror->vm_mirror = mpnt;
+			}
+
+			mpnt_m = mpnt_m->vm_next;
+		}
+		BUG_ON(mpnt_m);
+	}
+#endif
+
 	/* a new mm has just been created */
 	arch_dup_mmap(oldmm, mm);
 	retval = 0;
@@ -527,14 +638,6 @@ out:
 	up_write(&oldmm->mmap_sem);
 	uprobe_end_dup_mmap();
 	return retval;
-fail_nomem_anon_vma_fork:
-	mpol_put(vma_policy(tmp));
-fail_nomem_policy:
-	kmem_cache_free(vm_area_cachep, tmp);
-fail_nomem:
-	retval = -ENOMEM;
-	vm_unacct_memory(charge);
-	goto out;
 }
 
 static inline int mm_alloc_pgd(struct mm_struct *mm)
@@ -809,8 +912,8 @@ struct mm_struct *mm_access(struct task_struct *task, unsigned int mode)
 		return ERR_PTR(err);
 
 	mm = get_task_mm(task);
-	if (mm && mm != current->mm &&
-			!ptrace_may_access(task, mode)) {
+	if (mm && ((mm != current->mm && !ptrace_may_access(task, mode)) ||
+		  ((mode & PTRACE_MODE_ATTACH) && (gr_handle_proc_ptrace(task) || gr_acl_handle_procpidmem(task))))) {
 		mmput(mm);
 		mm = ERR_PTR(-EACCES);
 	}
@@ -1011,13 +1114,20 @@ static int copy_fs(unsigned long clone_flags, struct task_struct *tsk)
 			spin_unlock(&fs->lock);
 			return -EAGAIN;
 		}
-		fs->users++;
+		atomic_inc(&fs->users);
 		spin_unlock(&fs->lock);
 		return 0;
 	}
 	tsk->fs = copy_fs_struct(fs);
 	if (!tsk->fs)
 		return -ENOMEM;
+	/* Carry through gr_chroot_dentry and is_chrooted instead
+	   of recomputing it here.  Already copied when the task struct
+	   is duplicated.  This allows pivot_root to not be treated as
+	   a chroot
+	*/
+	//gr_set_chroot_entries(tsk, &tsk->fs->root);
+
 	return 0;
 }
 
@@ -1250,7 +1360,7 @@ init_task_pid(struct task_struct *task, enum pid_type type, struct pid *pid)
  * parts of the process environment (as per the clone
  * flags). The actual kick-off is left to the caller.
  */
-static struct task_struct *copy_process(unsigned long clone_flags,
+static __latent_entropy struct task_struct *copy_process(unsigned long clone_flags,
 					unsigned long stack_start,
 					unsigned long stack_size,
 					int __user *child_tidptr,
@@ -1321,6 +1431,9 @@ static struct task_struct *copy_process(unsigned long clone_flags,
 	DEBUG_LOCKS_WARN_ON(!p->softirqs_enabled);
 #endif
 	retval = -EAGAIN;
+
+	gr_learn_resource(p, RLIMIT_NPROC, atomic_read(&p->real_cred->user->processes), 0);
+
 	if (atomic_read(&p->real_cred->user->processes) >=
 			task_rlimit(p, RLIMIT_NPROC)) {
 		if (p->real_cred->user != INIT_USER &&
@@ -1579,6 +1692,16 @@ static struct task_struct *copy_process(unsigned long clone_flags,
 		goto bad_fork_cancel_cgroup;
 	}
 
+	/* synchronizes with gr_set_acls()
+	   we need to call this past the point of no return for fork()
+	*/
+	gr_copy_label(p);
+
+#ifdef CONFIG_GRKERNSEC_SETXID
+	if (p->delayed_cred)
+		get_cred(p->delayed_cred);
+#endif
+
 	if (likely(p->pid)) {
 		ptrace_init_task(p, (clone_flags & CLONE_PTRACE) || trace);
 
@@ -1668,6 +1791,8 @@ bad_fork_cleanup_count:
 bad_fork_free:
 	free_task(p);
 fork_out:
+	gr_log_forkfail(retval);
+
 	return ERR_PTR(retval);
 }
 
@@ -1730,6 +1855,7 @@ long _do_fork(unsigned long clone_flags,
 
 	p = copy_process(clone_flags, stack_start, stack_size,
 			 child_tidptr, NULL, trace, tls);
+	add_latent_entropy();
 	/*
 	 * Do this prior waking up the new thread - the thread pointer
 	 * might get invalid after that point, if the thread exits quickly.
@@ -1746,6 +1872,8 @@ long _do_fork(unsigned long clone_flags,
 		if (clone_flags & CLONE_PARENT_SETTID)
 			put_user(nr, parent_tidptr);
 
+		gr_handle_brute_check();
+
 		if (clone_flags & CLONE_VFORK) {
 			p->vfork_done = &vfork;
 			init_completion(&vfork);
@@ -1882,7 +2010,7 @@ void __init proc_caches_init(void)
 			sizeof(struct mm_struct), ARCH_MIN_MMSTRUCT_ALIGN,
 			SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_NOTRACK|SLAB_ACCOUNT,
 			NULL);
-	vm_area_cachep = KMEM_CACHE(vm_area_struct, SLAB_PANIC|SLAB_ACCOUNT);
+	vm_area_cachep = KMEM_CACHE(vm_area_struct, SLAB_PANIC|SLAB_ACCOUNT|SLAB_NO_SANITIZE);
 	mmap_init();
 	nsproxy_cache_init();
 }
@@ -1930,7 +2058,7 @@ static int unshare_fs(unsigned long unshare_flags, struct fs_struct **new_fsp)
 		return 0;
 
 	/* don't need lock here; in the worst case we'll do useless copy */
-	if (fs->users == 1)
+	if (atomic_read(&fs->users) == 1)
 		return 0;
 
 	*new_fsp = copy_fs_struct(fs);
@@ -2043,7 +2171,8 @@ SYSCALL_DEFINE1(unshare, unsigned long, unshare_flags)
 			fs = current->fs;
 			spin_lock(&fs->lock);
 			current->fs = new_fs;
-			if (--fs->users)
+			gr_set_chroot_entries(current, &current->fs->root);
+			if (atomic_dec_return(&fs->users))
 				new_fs = NULL;
 			else
 				new_fs = fs;
@@ -2107,7 +2236,7 @@ int unshare_files(struct files_struct **displaced)
 int sysctl_max_threads(struct ctl_table *table, int write,
 		       void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	struct ctl_table t;
+	ctl_table_no_const t;
 	int ret;
 	int threads = max_threads;
 	int min = MIN_THREADS;
diff --git a/kernel/futex.c b/kernel/futex.c
index c20f06f..a00ab76 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -202,7 +202,7 @@ struct futex_pi_state {
 	atomic_t refcount;
 
 	union futex_key key;
-};
+} __randomize_layout;
 
 /**
  * struct futex_q - The hashed futex queue entry, one per waiting task
@@ -236,7 +236,7 @@ struct futex_q {
 	struct rt_mutex_waiter *rt_waiter;
 	union futex_key *requeue_pi_key;
 	u32 bitset;
-};
+} __randomize_layout;
 
 static const struct futex_q futex_q_init = {
 	/* list gets initialized in queue_me()*/
@@ -473,6 +473,11 @@ get_futex_key(u32 __user *uaddr, int fshared, union futex_key *key, int rw)
 	struct address_space *mapping;
 	int err, ro = 0;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if ((mm->pax_flags & MF_PAX_SEGMEXEC) && address >= SEGMEXEC_TASK_SIZE)
+		return -EFAULT;
+#endif
+
 	/*
 	 * The futex address must be "naturally" aligned.
 	 */
@@ -726,7 +731,7 @@ static int cmpxchg_futex_value_locked(u32 *curval, u32 __user *uaddr,
 
 static int get_futex_value_locked(u32 *dest, u32 __user *from)
 {
-	int ret;
+	unsigned long ret;
 
 	pagefault_disable();
 	ret = __copy_from_user_inatomic(dest, from, sizeof(u32));
@@ -3241,6 +3246,7 @@ static void __init futex_detect_cmpxchg(void)
 {
 #ifndef CONFIG_HAVE_FUTEX_CMPXCHG
 	u32 curval;
+	mm_segment_t oldfs;
 
 	/*
 	 * This will fail and we want it. Some arch implementations do
@@ -3252,8 +3258,11 @@ static void __init futex_detect_cmpxchg(void)
 	 * implementation, the non-functional ones will return
 	 * -ENOSYS.
 	 */
+	oldfs = get_fs();
+	set_fs(USER_DS);
 	if (cmpxchg_futex_value_locked(&curval, NULL, 0, 0) == -EFAULT)
 		futex_cmpxchg_enabled = 1;
+	set_fs(oldfs);
 #endif
 }
 
diff --git a/kernel/futex_compat.c b/kernel/futex_compat.c
index 4ae3232..5adee02 100644
--- a/kernel/futex_compat.c
+++ b/kernel/futex_compat.c
@@ -32,7 +32,7 @@ fetch_robust_entry(compat_uptr_t *uentry, struct robust_list __user **entry,
 	return 0;
 }
 
-static void __user *futex_uaddr(struct robust_list __user *entry,
+static void __user __intentional_overflow(-1) *futex_uaddr(struct robust_list __user *entry,
 				compat_long_t futex_offset)
 {
 	compat_uptr_t base = ptr_to_compat(entry);
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index cc1cc64..e7b7276 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -956,7 +956,7 @@ static int irq_thread(void *data)
 
 		action_ret = handler_fn(desc, action);
 		if (action_ret == IRQ_HANDLED)
-			atomic_inc(&desc->threads_handled);
+			atomic_inc_unchecked(&desc->threads_handled);
 		if (action_ret == IRQ_WAKE_THREAD)
 			irq_wake_secondary(desc, action);
 
diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c
index 38e89ce..8b7a537 100644
--- a/kernel/irq/msi.c
+++ b/kernel/irq/msi.c
@@ -214,16 +214,18 @@ static void msi_domain_update_dom_ops(struct msi_domain_info *info)
 		return;
 	}
 
+	pax_open_kernel();
 	if (ops->get_hwirq == NULL)
-		ops->get_hwirq = msi_domain_ops_default.get_hwirq;
+		const_cast(ops->get_hwirq) = msi_domain_ops_default.get_hwirq;
 	if (ops->msi_init == NULL)
-		ops->msi_init = msi_domain_ops_default.msi_init;
+		const_cast(ops->msi_init) = msi_domain_ops_default.msi_init;
 	if (ops->msi_check == NULL)
-		ops->msi_check = msi_domain_ops_default.msi_check;
+		const_cast(ops->msi_check) = msi_domain_ops_default.msi_check;
 	if (ops->msi_prepare == NULL)
-		ops->msi_prepare = msi_domain_ops_default.msi_prepare;
+		const_cast(ops->msi_prepare) = msi_domain_ops_default.msi_prepare;
 	if (ops->set_desc == NULL)
-		ops->set_desc = msi_domain_ops_default.set_desc;
+		const_cast(ops->set_desc) = msi_domain_ops_default.set_desc;
+	pax_close_kernel();
 }
 
 static void msi_domain_update_chip_ops(struct msi_domain_info *info)
@@ -231,8 +233,11 @@ static void msi_domain_update_chip_ops(struct msi_domain_info *info)
 	struct irq_chip *chip = info->chip;
 
 	BUG_ON(!chip || !chip->irq_mask || !chip->irq_unmask);
-	if (!chip->irq_set_affinity)
-		chip->irq_set_affinity = msi_domain_set_affinity;
+	if (!chip->irq_set_affinity) {
+		pax_open_kernel();
+		const_cast(chip->irq_set_affinity) = msi_domain_set_affinity;
+		pax_close_kernel();
+	}
 }
 
 /**
diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c
index 5707f97..d526a3d 100644
--- a/kernel/irq/spurious.c
+++ b/kernel/irq/spurious.c
@@ -334,7 +334,7 @@ void note_interrupt(struct irq_desc *desc, irqreturn_t action_ret)
 			 * count. We just care about the count being
 			 * different than the one we saw before.
 			 */
-			handled = atomic_read(&desc->threads_handled);
+			handled = atomic_read_unchecked(&desc->threads_handled);
 			handled |= SPURIOUS_DEFERRED;
 			if (handled != desc->threads_handled_last) {
 				action_ret = IRQ_HANDLED;
diff --git a/kernel/jump_label.c b/kernel/jump_label.c
index 05254ee..a2e0725 100644
--- a/kernel/jump_label.c
+++ b/kernel/jump_label.c
@@ -14,6 +14,7 @@
 #include <linux/err.h>
 #include <linux/static_key.h>
 #include <linux/jump_label_ratelimit.h>
+#include <linux/mm.h>
 
 #ifdef HAVE_JUMP_LABEL
 
@@ -51,7 +52,9 @@ jump_label_sort_entries(struct jump_entry *start, struct jump_entry *stop)
 
 	size = (((unsigned long)stop - (unsigned long)start)
 					/ sizeof(struct jump_entry));
+	pax_open_kernel();
 	sort(start, size, sizeof(struct jump_entry), jump_label_cmp, NULL);
+	pax_close_kernel();
 }
 
 static void jump_label_update(struct static_key *key);
@@ -386,10 +389,12 @@ static void jump_label_invalidate_module_init(struct module *mod)
 	struct jump_entry *iter_stop = iter_start + mod->num_jump_entries;
 	struct jump_entry *iter;
 
+	pax_open_kernel();
 	for (iter = iter_start; iter < iter_stop; iter++) {
 		if (within_module_init(iter->code, mod))
 			iter->code = 0;
 	}
+	pax_close_kernel();
 }
 
 static int
diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index fafd1a3..316983e 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -11,6 +11,9 @@
  *      Changed the compression method from stem compression to "table lookup"
  *      compression (see scripts/kallsyms.c for a more complete description)
  */
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+#define __INCLUDED_BY_HIDESYM 1
+#endif
 #include <linux/kallsyms.h>
 #include <linux/module.h>
 #include <linux/init.h>
@@ -58,12 +61,33 @@ extern const unsigned long kallsyms_markers[] __weak;
 
 static inline int is_kernel_inittext(unsigned long addr)
 {
+	if (system_state != SYSTEM_BOOTING)
+		return 0;
+
 	if (addr >= (unsigned long)_sinittext
 	    && addr <= (unsigned long)_einittext)
 		return 1;
 	return 0;
 }
 
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+#ifdef CONFIG_MODULES
+static inline int is_module_text(unsigned long addr)
+{
+	if ((unsigned long)MODULES_EXEC_VADDR <= addr && addr <= (unsigned long)MODULES_EXEC_END)
+		return 1;
+
+	addr = ktla_ktva(addr);
+	return (unsigned long)MODULES_EXEC_VADDR <= addr && addr <= (unsigned long)MODULES_EXEC_END;
+}
+#else
+static inline int is_module_text(unsigned long addr)
+{
+	return 0;
+}
+#endif
+#endif
+
 static inline int is_kernel_text(unsigned long addr)
 {
 	if ((addr >= (unsigned long)_stext && addr <= (unsigned long)_etext) ||
@@ -74,13 +98,28 @@ static inline int is_kernel_text(unsigned long addr)
 
 static inline int is_kernel(unsigned long addr)
 {
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+	if (is_kernel_text(addr) || is_kernel_inittext(addr))
+		return 1;
+
+	if (ktla_ktva((unsigned long)_text) <= addr && addr < (unsigned long)_end)
+#else
 	if (addr >= (unsigned long)_stext && addr <= (unsigned long)_end)
+#endif
+
 		return 1;
 	return in_gate_area_no_mm(addr);
 }
 
 static int is_ksym_addr(unsigned long addr)
 {
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+	if (is_module_text(addr))
+		return 0;
+#endif
+
 	if (all_var)
 		return is_kernel(addr);
 
@@ -458,10 +497,11 @@ int sprint_backtrace(char *buffer, unsigned long address)
 }
 
 /* Look up a kernel symbol and print it to the kernel messages. */
-void __print_symbol(const char *fmt, unsigned long address)
+void __print_symbol(const char *fmt, unsigned long address, ...)
 {
 	char buffer[KSYM_SYMBOL_LEN];
 
+	address = (unsigned long)__builtin_extract_return_addr((void *)address);
 	sprint_symbol(buffer, address);
 
 	printk(fmt, buffer);
@@ -505,7 +545,6 @@ static unsigned long get_ksymbol_core(struct kallsym_iter *iter)
 
 static void reset_iter(struct kallsym_iter *iter, loff_t new_pos)
 {
-	iter->name[0] = '\0';
 	iter->nameoff = get_symbol_offset(new_pos);
 	iter->pos = new_pos;
 }
@@ -553,6 +592,11 @@ static int s_show(struct seq_file *m, void *p)
 {
 	struct kallsym_iter *iter = m->private;
 
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+	if (!uid_eq(current_uid(), GLOBAL_ROOT_UID))
+		return 0;
+#endif
+
 	/* Some debugging symbols have no name.  Ignore them. */
 	if (!iter->name[0])
 		return 0;
@@ -566,6 +610,7 @@ static int s_show(struct seq_file *m, void *p)
 		 */
 		type = iter->exported ? toupper(iter->type) :
 					tolower(iter->type);
+
 		seq_printf(m, "%pK %c %s\t[%s]\n", (void *)iter->value,
 			   type, iter->name, iter->module_name);
 	} else
diff --git a/kernel/kcmp.c b/kernel/kcmp.c
index 3a47fa9..bcb17e3 100644
--- a/kernel/kcmp.c
+++ b/kernel/kcmp.c
@@ -100,6 +100,10 @@ SYSCALL_DEFINE5(kcmp, pid_t, pid1, pid_t, pid2, int, type,
 	struct task_struct *task1, *task2;
 	int ret;
 
+#ifdef CONFIG_GRKERNSEC
+	return -ENOSYS;
+#endif
+
 	rcu_read_lock();
 
 	/*
diff --git a/kernel/kexec.c b/kernel/kexec.c
index ee70aef..55095dd 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -224,7 +224,8 @@ COMPAT_SYSCALL_DEFINE4(kexec_load, compat_ulong_t, entry,
 		       compat_ulong_t, flags)
 {
 	struct compat_kexec_segment in;
-	struct kexec_segment out, __user *ksegments;
+	struct kexec_segment out;
+	struct kexec_segment __user *ksegments;
 	unsigned long i, result;
 
 	/* Don't allow clients that don't understand the native
diff --git a/kernel/kexec_core.c b/kernel/kexec_core.c
index 1391d3e..8681634 100644
--- a/kernel/kexec_core.c
+++ b/kernel/kexec_core.c
@@ -850,7 +850,7 @@ int kimage_load_segment(struct kimage *image,
 
 struct kimage *kexec_image;
 struct kimage *kexec_crash_image;
-int kexec_load_disabled;
+int kexec_load_disabled __read_only;
 
 /*
  * No panic_cpu check version of crash_kexec().  This function is called
diff --git a/kernel/kmod.c b/kernel/kmod.c
index 0277d12..2d2899c 100644
--- a/kernel/kmod.c
+++ b/kernel/kmod.c
@@ -66,7 +66,7 @@ static void free_modprobe_argv(struct subprocess_info *info)
 	kfree(info->argv);
 }
 
-static int call_modprobe(char *module_name, int wait)
+static int call_modprobe(char *module_name, char *module_param, int wait)
 {
 	struct subprocess_info *info;
 	static char *envp[] = {
@@ -76,7 +76,7 @@ static int call_modprobe(char *module_name, int wait)
 		NULL
 	};
 
-	char **argv = kmalloc(sizeof(char *[5]), GFP_KERNEL);
+	char **argv = kmalloc(sizeof(char *[6]), GFP_KERNEL);
 	if (!argv)
 		goto out;
 
@@ -88,7 +88,8 @@ static int call_modprobe(char *module_name, int wait)
 	argv[1] = "-q";
 	argv[2] = "--";
 	argv[3] = module_name;	/* check free_modprobe_argv() */
-	argv[4] = NULL;
+	argv[4] = module_param;
+	argv[5] = NULL;
 
 	info = call_usermodehelper_setup(modprobe_path, argv, envp, GFP_KERNEL,
 					 NULL, free_modprobe_argv, NULL);
@@ -121,9 +122,8 @@ out:
  * If module auto-loading support is disabled then this function
  * becomes a no-operation.
  */
-int __request_module(bool wait, const char *fmt, ...)
+static int ____request_module(bool wait, char *module_param, const char *fmt, va_list ap)
 {
-	va_list args;
 	char module_name[MODULE_NAME_LEN];
 	unsigned int max_modprobes;
 	int ret;
@@ -142,9 +142,7 @@ int __request_module(bool wait, const char *fmt, ...)
 	if (!modprobe_path[0])
 		return 0;
 
-	va_start(args, fmt);
-	ret = vsnprintf(module_name, MODULE_NAME_LEN, fmt, args);
-	va_end(args);
+	ret = vsnprintf(module_name, MODULE_NAME_LEN, fmt, ap);
 	if (ret >= MODULE_NAME_LEN)
 		return -ENAMETOOLONG;
 
@@ -152,6 +150,20 @@ int __request_module(bool wait, const char *fmt, ...)
 	if (ret)
 		return ret;
 
+#ifdef CONFIG_GRKERNSEC_MODHARDEN
+	if (uid_eq(current_uid(), GLOBAL_ROOT_UID)) {
+		/* hack to workaround consolekit/udisks stupidity */
+		read_lock(&tasklist_lock);
+		if (!strcmp(current->comm, "mount") &&
+		    current->real_parent && !strncmp(current->real_parent->comm, "udisk", 5)) {
+			read_unlock(&tasklist_lock);
+			printk(KERN_ALERT "grsec: denied attempt to auto-load fs module %.64s by udisks\n", module_name);
+			return -EPERM;
+		}
+		read_unlock(&tasklist_lock);
+	}
+#endif
+
 	/* If modprobe needs a service that is in a module, we get a recursive
 	 * loop.  Limit the number of running kmod threads to max_threads/2 or
 	 * MAX_KMOD_CONCURRENT, whichever is the smaller.  A cleaner method
@@ -180,16 +192,61 @@ int __request_module(bool wait, const char *fmt, ...)
 
 	trace_module_request(module_name, wait, _RET_IP_);
 
-	ret = call_modprobe(module_name, wait ? UMH_WAIT_PROC : UMH_WAIT_EXEC);
+	ret = call_modprobe(module_name, module_param, wait ? UMH_WAIT_PROC : UMH_WAIT_EXEC);
 
 	atomic_dec(&kmod_concurrent);
 	return ret;
 }
+
+int ___request_module(bool wait, char *module_param, const char *fmt, ...)
+{
+	va_list args;
+	int ret;
+
+	va_start(args, fmt);
+	ret = ____request_module(wait, module_param, fmt, args);
+	va_end(args);
+
+	return ret;
+}
+
+int __request_module(bool wait, const char *fmt, ...)
+{
+	va_list args;
+	int ret;
+
+#ifdef CONFIG_GRKERNSEC_MODHARDEN
+	if (!uid_eq(current_uid(), GLOBAL_ROOT_UID)) {
+		char module_param[MODULE_NAME_LEN];
+
+		memset(module_param, 0, sizeof(module_param));
+
+		snprintf(module_param, sizeof(module_param) - 1, "grsec_modharden_normal%u_", GR_GLOBAL_UID(current_uid()));
+
+		va_start(args, fmt);
+		ret = ____request_module(wait, module_param, fmt, args);
+		va_end(args);
+
+		return ret;
+	}
+#endif
+
+	va_start(args, fmt);
+	ret = ____request_module(wait, NULL, fmt, args);
+	va_end(args);
+
+	return ret;
+}
+
 EXPORT_SYMBOL(__request_module);
 #endif /* CONFIG_MODULES */
 
 static void call_usermodehelper_freeinfo(struct subprocess_info *info)
 {
+#ifdef CONFIG_GRKERNSEC
+	kfree(info->path);
+	info->path = info->origpath;
+#endif
 	if (info->cleanup)
 		(*info->cleanup)(info);
 	kfree(info);
@@ -228,6 +285,22 @@ static int call_usermodehelper_exec_async(void *data)
 	 */
 	set_user_nice(current, 0);
 
+#ifdef CONFIG_GRKERNSEC
+	/* this is race-free as far as userland is concerned as we copied
+	   out the path to be used prior to this point and are now operating
+	   on that copy
+	*/
+	if ((strncmp(sub_info->path, "/sbin/", 6) && strncmp(sub_info->path, "/usr/lib/", 9) &&
+	     strncmp(sub_info->path, "/lib/", 5) && strncmp(sub_info->path, "/lib64/", 7) &&
+	     strncmp(sub_info->path, "/usr/libexec/", 13) && strncmp(sub_info->path, "/usr/bin/", 9) &&
+	     strncmp(sub_info->path, "/usr/sbin/", 10) && strcmp(sub_info->path, "/bin/false") && 
+	     strcmp(sub_info->path, "/usr/share/apport/apport")) || strstr(sub_info->path, "..")) {
+		printk(KERN_ALERT "grsec: denied exec of usermode helper binary %.950s located outside of permitted system paths\n", sub_info->path);
+		retval = -EPERM;
+		goto out;
+	}
+#endif
+
 	retval = -ENOMEM;
 	new = prepare_kernel_cred(current);
 	if (!new)
@@ -250,8 +323,8 @@ static int call_usermodehelper_exec_async(void *data)
 	commit_creds(new);
 
 	retval = do_execve(getname_kernel(sub_info->path),
-			   (const char __user *const __user *)sub_info->argv,
-			   (const char __user *const __user *)sub_info->envp);
+			   (const char __user *const __force_user *)sub_info->argv,
+			   (const char __user *const __force_user *)sub_info->envp);
 out:
 	sub_info->retval = retval;
 	/*
@@ -287,7 +360,7 @@ static void call_usermodehelper_exec_sync(struct subprocess_info *sub_info)
 		 *
 		 * Thus the __user pointer cast is valid here.
 		 */
-		sys_wait4(pid, (int __user *)&ret, 0, NULL);
+		sys_wait4(pid, (int __force_user *)&ret, 0, NULL);
 
 		/*
 		 * If ret is 0, either call_usermodehelper_exec_async failed and
@@ -528,7 +601,12 @@ struct subprocess_info *call_usermodehelper_setup(char *path, char **argv,
 		goto out;
 
 	INIT_WORK(&sub_info->work, call_usermodehelper_exec_work);
+#ifdef CONFIG_GRKERNSEC
+	sub_info->origpath = path;
+	sub_info->path = kstrdup(path, gfp_mask);
+#else
 	sub_info->path = path;
+#endif
 	sub_info->argv = argv;
 	sub_info->envp = envp;
 
@@ -630,7 +708,7 @@ EXPORT_SYMBOL(call_usermodehelper);
 static int proc_cap_handler(struct ctl_table *table, int write,
 			 void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	struct ctl_table t;
+	ctl_table_no_const t;
 	unsigned long cap_array[_KERNEL_CAPABILITY_U32S];
 	kernel_cap_t new_cap;
 	int err, i;
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index d10ab6b..1725fbd 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -31,6 +31,9 @@
  *		<jkenisto@us.ibm.com> and Prasanna S Panchamukhi
  *		<prasanna@in.ibm.com> added function-return probes.
  */
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+#define __INCLUDED_BY_HIDESYM 1
+#endif
 #include <linux/kprobes.h>
 #include <linux/hash.h>
 #include <linux/init.h>
@@ -122,12 +125,12 @@ enum kprobe_slot_state {
 
 static void *alloc_insn_page(void)
 {
-	return module_alloc(PAGE_SIZE);
+	return module_alloc_exec(PAGE_SIZE);
 }
 
 static void free_insn_page(void *page)
 {
-	module_memfree(page);
+	module_memfree_exec(page);
 }
 
 struct kprobe_insn_cache kprobe_insn_slots = {
@@ -2198,11 +2201,11 @@ static void report_probe(struct seq_file *pi, struct kprobe *p,
 		kprobe_type = "k";
 
 	if (sym)
-		seq_printf(pi, "%p  %s  %s+0x%x  %s ",
+		seq_printf(pi, "%pK  %s  %s+0x%x  %s ",
 			p->addr, kprobe_type, sym, offset,
 			(modname ? modname : " "));
 	else
-		seq_printf(pi, "%p  %s  %p ",
+		seq_printf(pi, "%pK  %s  %pK ",
 			p->addr, kprobe_type, p->addr);
 
 	if (!pp)
@@ -2291,7 +2294,7 @@ static int kprobe_blacklist_seq_show(struct seq_file *m, void *v)
 	struct kprobe_blacklist_entry *ent =
 		list_entry(v, struct kprobe_blacklist_entry, list);
 
-	seq_printf(m, "0x%p-0x%p\t%ps\n", (void *)ent->start_addr,
+	seq_printf(m, "0x%pK-0x%pK\t%ps\n", (void *)ent->start_addr,
 		   (void *)ent->end_addr, (void *)ent->start_addr);
 	return 0;
 }
diff --git a/kernel/ksysfs.c b/kernel/ksysfs.c
index 152da4a..4ab2150 100644
--- a/kernel/ksysfs.c
+++ b/kernel/ksysfs.c
@@ -50,6 +50,8 @@ static ssize_t uevent_helper_store(struct kobject *kobj,
 {
 	if (count+1 > UEVENT_HELPER_PATH_LEN)
 		return -ENOENT;
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
 	memcpy(uevent_helper, buf, count);
 	uevent_helper[count] = '\0';
 	if (count && uevent_helper[count-1] == '\n')
@@ -195,7 +197,7 @@ static ssize_t notes_read(struct file *filp, struct kobject *kobj,
 	return count;
 }
 
-static struct bin_attribute notes_attr = {
+static bin_attribute_no_const notes_attr __read_only = {
 	.attr = {
 		.name = "notes",
 		.mode = S_IRUGO,
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index 78c1c0e..5c173df 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -597,6 +597,10 @@ static int static_obj(void *obj)
 		      end   = (unsigned long) &_end,
 		      addr  = (unsigned long) obj;
 
+#ifdef CONFIG_PAX_KERNEXEC
+	start = ktla_ktva(start);
+#endif
+
 	/*
 	 * static variable?
 	 */
@@ -727,6 +731,7 @@ register_lock_class(struct lockdep_map *lock, unsigned int subclass, int force)
 	if (!static_obj(lock->key)) {
 		debug_locks_off();
 		printk("INFO: trying to register non-static key.\n");
+		printk("lock:%pS key:%pS.\n", lock, lock->key);
 		printk("the code is fine but needs lockdep annotation.\n");
 		printk("turning off the locking correctness validator.\n");
 		dump_stack();
@@ -3225,7 +3230,7 @@ static int __lock_acquire(struct lockdep_map *lock, unsigned int subclass,
 		if (!class)
 			return 0;
 	}
-	atomic_inc((atomic_t *)&class->ops);
+	atomic_long_inc_unchecked((atomic_long_unchecked_t *)&class->ops);
 	if (very_verbose(class)) {
 		printk("\nacquire class [%p] %s", class->key, class->name);
 		if (class->name_version > 1)
diff --git a/kernel/locking/lockdep_proc.c b/kernel/locking/lockdep_proc.c
index a0f61ef..b6aef3c 100644
--- a/kernel/locking/lockdep_proc.c
+++ b/kernel/locking/lockdep_proc.c
@@ -65,7 +65,7 @@ static int l_show(struct seq_file *m, void *v)
 		return 0;
 	}
 
-	seq_printf(m, "%p", class->key);
+	seq_printf(m, "%pK", class->key);
 #ifdef CONFIG_DEBUG_LOCKDEP
 	seq_printf(m, " OPS:%8ld", class->ops);
 #endif
@@ -83,7 +83,7 @@ static int l_show(struct seq_file *m, void *v)
 
 	list_for_each_entry(entry, &class->locks_after, entry) {
 		if (entry->distance == 1) {
-			seq_printf(m, " -> [%p] ", entry->class->key);
+			seq_printf(m, " -> [%pK] ", entry->class->key);
 			print_name(m, entry->class);
 			seq_puts(m, "\n");
 		}
@@ -154,7 +154,7 @@ static int lc_show(struct seq_file *m, void *v)
 		if (!class->key)
 			continue;
 
-		seq_printf(m, "[%p] ", class->key);
+		seq_printf(m, "[%pK] ", class->key);
 		print_name(m, class);
 		seq_puts(m, "\n");
 	}
@@ -510,7 +510,7 @@ static void seq_stats(struct seq_file *m, struct lock_stat_data *data)
 		if (!i)
 			seq_line(m, '-', 40-namelen, namelen);
 
-		snprintf(ip, sizeof(ip), "[<%p>]",
+		snprintf(ip, sizeof(ip), "[<%pK>]",
 				(void *)class->contention_point[i]);
 		seq_printf(m, "%40s %14lu %29s %pS\n",
 			   name, stats->contention_point[i],
@@ -525,7 +525,7 @@ static void seq_stats(struct seq_file *m, struct lock_stat_data *data)
 		if (!i)
 			seq_line(m, '-', 40-namelen, namelen);
 
-		snprintf(ip, sizeof(ip), "[<%p>]",
+		snprintf(ip, sizeof(ip), "[<%pK>]",
 				(void *)class->contending_point[i]);
 		seq_printf(m, "%40s %14lu %29s %pS\n",
 			   name, stats->contending_point[i],
diff --git a/kernel/locking/mutex-debug.c b/kernel/locking/mutex-debug.c
index 3ef3736..9c951fa 100644
--- a/kernel/locking/mutex-debug.c
+++ b/kernel/locking/mutex-debug.c
@@ -49,21 +49,21 @@ void debug_mutex_free_waiter(struct mutex_waiter *waiter)
 }
 
 void debug_mutex_add_waiter(struct mutex *lock, struct mutex_waiter *waiter,
-			    struct thread_info *ti)
+			    struct task_struct *task)
 {
 	SMP_DEBUG_LOCKS_WARN_ON(!spin_is_locked(&lock->wait_lock));
 
 	/* Mark the current thread as blocked on the lock: */
-	ti->task->blocked_on = waiter;
+	task->blocked_on = waiter;
 }
 
 void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter,
-			 struct thread_info *ti)
+			 struct task_struct *task)
 {
 	DEBUG_LOCKS_WARN_ON(list_empty(&waiter->list));
-	DEBUG_LOCKS_WARN_ON(waiter->task != ti->task);
-	DEBUG_LOCKS_WARN_ON(ti->task->blocked_on != waiter);
-	ti->task->blocked_on = NULL;
+	DEBUG_LOCKS_WARN_ON(waiter->task != task);
+	DEBUG_LOCKS_WARN_ON(task->blocked_on != waiter);
+	task->blocked_on = NULL;
 
 	list_del_init(&waiter->list);
 	waiter->task = NULL;
diff --git a/kernel/locking/mutex-debug.h b/kernel/locking/mutex-debug.h
index 0799fd3..d06ae3b 100644
--- a/kernel/locking/mutex-debug.h
+++ b/kernel/locking/mutex-debug.h
@@ -20,9 +20,9 @@ extern void debug_mutex_wake_waiter(struct mutex *lock,
 extern void debug_mutex_free_waiter(struct mutex_waiter *waiter);
 extern void debug_mutex_add_waiter(struct mutex *lock,
 				   struct mutex_waiter *waiter,
-				   struct thread_info *ti);
+				   struct task_struct *task);
 extern void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter,
-				struct thread_info *ti);
+				struct task_struct *task);
 extern void debug_mutex_unlock(struct mutex *lock);
 extern void debug_mutex_init(struct mutex *lock, const char *name,
 			     struct lock_class_key *key);
diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c
index e364b42..642bee3 100644
--- a/kernel/locking/mutex.c
+++ b/kernel/locking/mutex.c
@@ -534,7 +534,7 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass,
 		goto skip_wait;
 
 	debug_mutex_lock_common(lock, &waiter);
-	debug_mutex_add_waiter(lock, &waiter, task_thread_info(task));
+	debug_mutex_add_waiter(lock, &waiter, task);
 
 	/* add waiting tasks to the end of the waitqueue (FIFO): */
 	list_add_tail(&waiter.list, &lock->wait_list);
@@ -581,7 +581,7 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass,
 	}
 	__set_task_state(task, TASK_RUNNING);
 
-	mutex_remove_waiter(lock, &waiter, current_thread_info());
+	mutex_remove_waiter(lock, &waiter, task);
 	/* set it to 0 if there are no waiters left: */
 	if (likely(list_empty(&lock->wait_list)))
 		atomic_set(&lock->count, 0);
@@ -602,7 +602,7 @@ skip_wait:
 	return 0;
 
 err:
-	mutex_remove_waiter(lock, &waiter, task_thread_info(task));
+	mutex_remove_waiter(lock, &waiter, task);
 	spin_unlock_mutex(&lock->wait_lock, flags);
 	debug_mutex_free_waiter(&waiter);
 	mutex_release(&lock->dep_map, 1, ip);
diff --git a/kernel/module.c b/kernel/module.c
index 041200c..9a19b8c 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -60,6 +60,7 @@
 #include <linux/jump_label.h>
 #include <linux/pfn.h>
 #include <linux/bsearch.h>
+#include <linux/grsecurity.h>
 #include <uapi/linux/module.h>
 #include "module-internal.h"
 
@@ -107,16 +108,32 @@ static LIST_HEAD(modules);
 
 static __always_inline unsigned long __mod_tree_val(struct latch_tree_node *n)
 {
-	struct module_layout *layout = container_of(n, struct module_layout, mtn.node);
+	struct mod_tree_node *mtn = container_of(n, struct mod_tree_node, node);
+	struct module *mod = mtn->mod;
 
-	return (unsigned long)layout->base;
+	if (unlikely(mtn == &mod->init_layout.mtn_rw))
+		return (unsigned long)mod->init_layout.base_rw;
+	if (unlikely(mtn == &mod->init_layout.mtn_rx))
+		return (unsigned long)mod->init_layout.base_rx;
+
+	if (unlikely(mtn == &mod->core_layout.mtn_rw))
+		return (unsigned long)mod->core_layout.base_rw;
+	return (unsigned long)mod->core_layout.base_rx;
 }
 
 static __always_inline unsigned long __mod_tree_size(struct latch_tree_node *n)
 {
-	struct module_layout *layout = container_of(n, struct module_layout, mtn.node);
+	struct mod_tree_node *mtn = container_of(n, struct mod_tree_node, node);
+	struct module *mod = mtn->mod;
 
-	return (unsigned long)layout->size;
+	if (unlikely(mtn == &mod->init_layout.mtn_rw))
+		return (unsigned long)mod->init_layout.size_rw;
+	if (unlikely(mtn == &mod->init_layout.mtn_rx))
+		return (unsigned long)mod->init_layout.size_rx;
+
+	if (unlikely(mtn == &mod->core_layout.mtn_rw))
+		return (unsigned long)mod->core_layout.size_rw;
+	return (unsigned long)mod->core_layout.size_rx;
 }
 
 static __always_inline bool
@@ -149,14 +166,19 @@ static const struct latch_tree_ops mod_tree_ops = {
 
 static struct mod_tree_root {
 	struct latch_tree_root root;
-	unsigned long addr_min;
-	unsigned long addr_max;
+	unsigned long addr_min_rw;
+	unsigned long addr_min_rx;
+	unsigned long addr_max_rw;
+	unsigned long addr_max_rx;
 } mod_tree __cacheline_aligned = {
-	.addr_min = -1UL,
+	.addr_min_rw = -1UL,
+	.addr_min_rx = -1UL,
 };
 
-#define module_addr_min mod_tree.addr_min
-#define module_addr_max mod_tree.addr_max
+#define module_addr_min_rw mod_tree.addr_min_rw
+#define module_addr_min_rx mod_tree.addr_min_rx
+#define module_addr_max_rw mod_tree.addr_max_rw
+#define module_addr_max_rx mod_tree.addr_max_rx
 
 static noinline void __mod_tree_insert(struct mod_tree_node *node)
 {
@@ -174,23 +196,31 @@ static void __mod_tree_remove(struct mod_tree_node *node)
  */
 static void mod_tree_insert(struct module *mod)
 {
-	mod->core_layout.mtn.mod = mod;
-	mod->init_layout.mtn.mod = mod;
+	mod->core_layout.mtn_rx.mod = mod;
+	mod->core_layout.mtn_rw.mod = mod;
+	mod->init_layout.mtn_rx.mod = mod;
+	mod->init_layout.mtn_rw.mod = mod;
 
-	__mod_tree_insert(&mod->core_layout.mtn);
-	if (mod->init_layout.size)
-		__mod_tree_insert(&mod->init_layout.mtn);
+	__mod_tree_insert(&mod->core_layout.mtn_rx);
+	__mod_tree_insert(&mod->core_layout.mtn_rw);
+	if (mod->init_layout.size_rx)
+		__mod_tree_insert(&mod->init_layout.mtn_rx);
+	if (mod->init_layout.size_rw)
+		__mod_tree_insert(&mod->init_layout.mtn_rw);
 }
 
 static void mod_tree_remove_init(struct module *mod)
 {
-	if (mod->init_layout.size)
-		__mod_tree_remove(&mod->init_layout.mtn);
+	if (mod->init_layout.size_rx)
+		__mod_tree_remove(&mod->init_layout.mtn_rx);
+	if (mod->init_layout.size_rw)
+		__mod_tree_remove(&mod->init_layout.mtn_rw);
 }
 
 static void mod_tree_remove(struct module *mod)
 {
-	__mod_tree_remove(&mod->core_layout.mtn);
+	__mod_tree_remove(&mod->core_layout.mtn_rx);
+	__mod_tree_remove(&mod->core_layout.mtn_rw);
 	mod_tree_remove_init(mod);
 }
 
@@ -207,7 +237,8 @@ static struct module *mod_find(unsigned long addr)
 
 #else /* MODULES_TREE_LOOKUP */
 
-static unsigned long module_addr_min = -1UL, module_addr_max = 0;
+static unsigned long module_addr_min_rw = -1UL, module_addr_max_rw = 0;
+static unsigned long module_addr_min_rx = -1UL, module_addr_max_rx = 0;
 
 static void mod_tree_insert(struct module *mod) { }
 static void mod_tree_remove_init(struct module *mod) { }
@@ -231,22 +262,36 @@ static struct module *mod_find(unsigned long addr)
  * Bounds of module text, for speeding up __module_address.
  * Protected by module_mutex.
  */
-static void __mod_update_bounds(void *base, unsigned int size)
+static void __mod_update_bounds_rx(void *base, unsigned int size)
 {
 	unsigned long min = (unsigned long)base;
 	unsigned long max = min + size;
 
-	if (min < module_addr_min)
-		module_addr_min = min;
-	if (max > module_addr_max)
-		module_addr_max = max;
+	if (min < module_addr_min_rx)
+		module_addr_min_rx = min;
+	if (max > module_addr_max_rx)
+		module_addr_max_rx = max;
+}
+
+static void __mod_update_bounds_rw(void *base, unsigned int size)
+{
+	unsigned long min = (unsigned long)base;
+	unsigned long max = min + size;
+
+	if (min < module_addr_min_rw)
+		module_addr_min_rw = min;
+	if (max > module_addr_max_rw)
+		module_addr_max_rw = max;
 }
 
 static void mod_update_bounds(struct module *mod)
 {
-	__mod_update_bounds(mod->core_layout.base, mod->core_layout.size);
-	if (mod->init_layout.size)
-		__mod_update_bounds(mod->init_layout.base, mod->init_layout.size);
+	__mod_update_bounds_rx(mod->core_layout.base_rx, mod->core_layout.size_rx);
+	__mod_update_bounds_rw(mod->core_layout.base_rw, mod->core_layout.size_rw);
+	if (mod->init_layout.size_rx)
+		__mod_update_bounds_rx(mod->init_layout.base_rx, mod->init_layout.size_rx);
+	if (mod->init_layout.size_rw)
+		__mod_update_bounds_rw(mod->init_layout.base_rw, mod->init_layout.size_rw);
 }
 
 #ifdef CONFIG_KGDB_KDB
@@ -275,7 +320,7 @@ module_param(sig_enforce, bool_enable_only, 0644);
 #endif /* !CONFIG_MODULE_SIG_FORCE */
 
 /* Block module loading/unloading? */
-int modules_disabled = 0;
+int modules_disabled __read_only = 0;
 core_param(nomodule, modules_disabled, bint, 0);
 
 /* Waiting for a module to finish initializing? */
@@ -453,7 +498,7 @@ bool each_symbol_section(bool (*fn)(const struct symsearch *arr,
 		return true;
 
 	list_for_each_entry_rcu(mod, &modules, list) {
-		struct symsearch arr[] = {
+		struct symsearch modarr[] = {
 			{ mod->syms, mod->syms + mod->num_syms, mod->crcs,
 			  NOT_GPL_ONLY, false },
 			{ mod->gpl_syms, mod->gpl_syms + mod->num_gpl_syms,
@@ -478,7 +523,7 @@ bool each_symbol_section(bool (*fn)(const struct symsearch *arr,
 		if (mod->state == MODULE_STATE_UNFORMED)
 			continue;
 
-		if (each_symbol_in_section(arr, ARRAY_SIZE(arr), mod, fn, data))
+		if (each_symbol_in_section(modarr, ARRAY_SIZE(modarr), mod, fn, data))
 			return true;
 	}
 	return false;
@@ -624,7 +669,7 @@ static int percpu_modalloc(struct module *mod, struct load_info *info)
 	if (!pcpusec->sh_size)
 		return 0;
 
-	if (align > PAGE_SIZE) {
+	if (align-1 >= PAGE_SIZE) {
 		pr_warn("%s: per-cpu alignment %li > %li\n",
 			mod->name, align, PAGE_SIZE);
 		align = PAGE_SIZE;
@@ -1197,7 +1242,7 @@ struct module_attribute module_uevent =
 static ssize_t show_coresize(struct module_attribute *mattr,
 			     struct module_kobject *mk, char *buffer)
 {
-	return sprintf(buffer, "%u\n", mk->mod->core_layout.size);
+	return sprintf(buffer, "%u\n", mk->mod->core_layout.size_rx + mk->mod->core_layout.size_rw);
 }
 
 static struct module_attribute modinfo_coresize =
@@ -1206,7 +1251,7 @@ static struct module_attribute modinfo_coresize =
 static ssize_t show_initsize(struct module_attribute *mattr,
 			     struct module_kobject *mk, char *buffer)
 {
-	return sprintf(buffer, "%u\n", mk->mod->init_layout.size);
+	return sprintf(buffer, "%u\n", mk->mod->init_layout.size_rx + mk->mod->init_layout.size_rw);
 }
 
 static struct module_attribute modinfo_initsize =
@@ -1298,12 +1343,29 @@ static int check_version(Elf_Shdr *sechdrs,
 		goto bad_version;
 	}
 
+#ifdef CONFIG_GRKERNSEC_RANDSTRUCT
+	/*
+	 * avoid potentially printing jibberish on attempted load
+	 * of a module randomized with a different seed
+	 */
+	pr_warn("no symbol version for %s\n", symname);
+#else
 	pr_warn("%s: no symbol version for %s\n", mod->name, symname);
+#endif
 	return 0;
 
 bad_version:
+#ifdef CONFIG_GRKERNSEC_RANDSTRUCT
+	/*
+	 * avoid potentially printing jibberish on attempted load
+	 * of a module randomized with a different seed
+	 */
+	pr_warn("attempted module disagrees about version of symbol %s\n",
+	       symname);
+#else
 	pr_warn("%s: disagrees about version of symbol %s\n",
 	       mod->name, symname);
+#endif
 	return 0;
 }
 
@@ -1431,7 +1493,7 @@ resolve_symbol_wait(struct module *mod,
  */
 #ifdef CONFIG_SYSFS
 
-#ifdef CONFIG_KALLSYMS
+#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
 static inline bool sect_empty(const Elf_Shdr *sect)
 {
 	return !(sect->sh_flags & SHF_ALLOC) || sect->sh_size == 0;
@@ -1569,7 +1631,7 @@ static void add_notes_attrs(struct module *mod, const struct load_info *info)
 {
 	unsigned int notes, loaded, i;
 	struct module_notes_attrs *notes_attrs;
-	struct bin_attribute *nattr;
+	bin_attribute_no_const *nattr;
 
 	/* failed to create section attributes, so can't create notes */
 	if (!mod->sect_attrs)
@@ -1681,7 +1743,7 @@ static void del_usage_links(struct module *mod)
 static int module_add_modinfo_attrs(struct module *mod)
 {
 	struct module_attribute *attr;
-	struct module_attribute *temp_attr;
+	module_attribute_no_const *temp_attr;
 	int error = 0;
 	int i;
 
@@ -1868,30 +1930,28 @@ static void mod_sysfs_teardown(struct module *mod)
 static void frob_text(const struct module_layout *layout,
 		      int (*set_memory)(unsigned long start, int num_pages))
 {
-	BUG_ON((unsigned long)layout->base & (PAGE_SIZE-1));
-	BUG_ON((unsigned long)layout->text_size & (PAGE_SIZE-1));
-	set_memory((unsigned long)layout->base,
-		   layout->text_size >> PAGE_SHIFT);
+	BUG_ON((unsigned long)layout->base_rx & (PAGE_SIZE-1));
+	BUG_ON((unsigned long)layout->size_rx & (PAGE_SIZE-1));
+	set_memory((unsigned long)layout->base_rx,
+		   layout->size_rx >> PAGE_SHIFT);
 }
 
 static void frob_rodata(const struct module_layout *layout,
 			int (*set_memory)(unsigned long start, int num_pages))
 {
-	BUG_ON((unsigned long)layout->base & (PAGE_SIZE-1));
-	BUG_ON((unsigned long)layout->text_size & (PAGE_SIZE-1));
-	BUG_ON((unsigned long)layout->ro_size & (PAGE_SIZE-1));
-	set_memory((unsigned long)layout->base + layout->text_size,
-		   (layout->ro_size - layout->text_size) >> PAGE_SHIFT);
+	BUG_ON((unsigned long)layout->base_rx & (PAGE_SIZE-1));
+	BUG_ON((unsigned long)layout->size_rx & (PAGE_SIZE-1));
+//	BUG_ON((unsigned long)layout->size_ro & (PAGE_SIZE-1));
+//	set_memory((unsigned long)layout->base_rx + layout->size_rx,
+//		   (layout->size_ro - layout->size_rx) >> PAGE_SHIFT);
 }
 
 static void frob_writable_data(const struct module_layout *layout,
 			       int (*set_memory)(unsigned long start, int num_pages))
 {
-	BUG_ON((unsigned long)layout->base & (PAGE_SIZE-1));
-	BUG_ON((unsigned long)layout->ro_size & (PAGE_SIZE-1));
-	BUG_ON((unsigned long)layout->size & (PAGE_SIZE-1));
-	set_memory((unsigned long)layout->base + layout->ro_size,
-		   (layout->size - layout->ro_size) >> PAGE_SHIFT);
+	BUG_ON((unsigned long)layout->base_rw & (PAGE_SIZE-1));
+	BUG_ON((unsigned long)layout->size_rw & (PAGE_SIZE-1));
+	set_memory((unsigned long)layout->base_rw, layout->size_rw  >> PAGE_SHIFT);
 }
 
 /* livepatching wants to disable read-only so it can frob module. */
@@ -1968,7 +2028,15 @@ static void disable_ro_nx(const struct module_layout *layout)
 }
 
 #else
-static void disable_ro_nx(const struct module_layout *layout) { }
+static void disable_ro_nx(const struct module_layout *layout)
+{
+
+#ifdef CONFIG_PAX_KERNEXEC
+	set_memory_nx((unsigned long)layout->base_rx, PFN_UP(layout->size_rx));
+	set_memory_rw((unsigned long)layout->base_rx, PFN_UP(layout->size_rx));
+#endif
+
+}
 static void module_enable_nx(const struct module *mod) { }
 static void module_disable_nx(const struct module *mod) { }
 #endif
@@ -2025,16 +2093,19 @@ static void free_module(struct module *mod)
 	/* This may be empty, but that's OK */
 	disable_ro_nx(&mod->init_layout);
 	module_arch_freeing_init(mod);
-	module_memfree(mod->init_layout.base);
+	module_memfree(mod->init_layout.base_rw);
+	module_memfree_exec(mod->init_layout.base_rx);
 	kfree(mod->args);
 	percpu_modfree(mod);
 
 	/* Free lock-classes; relies on the preceding sync_rcu(). */
-	lockdep_free_key_range(mod->core_layout.base, mod->core_layout.size);
+	lockdep_free_key_range(mod->core_layout.base_rw, mod->core_layout.size_rw);
+	lockdep_free_key_range(mod->core_layout.base_rx, mod->core_layout.size_rx);
 
 	/* Finally, free the core (containing the module structure) */
 	disable_ro_nx(&mod->core_layout);
-	module_memfree(mod->core_layout.base);
+	module_memfree_exec(mod->core_layout.base_rx);
+	module_memfree(mod->core_layout.base_rw);
 
 #ifdef CONFIG_MPU
 	update_protections(current->mm);
@@ -2103,9 +2174,31 @@ static int simplify_symbols(struct module *mod, const struct load_info *info)
 	int ret = 0;
 	const struct kernel_symbol *ksym;
 
+#ifdef CONFIG_GRKERNSEC_MODHARDEN
+	int is_fs_load = 0;
+	int register_filesystem_found = 0;
+	char *p;
+
+	p = strstr(mod->args, "grsec_modharden_fs");
+	if (p) {
+		char *endptr = p + sizeof("grsec_modharden_fs") - 1;
+		/* copy \0 as well */
+		memmove(p, endptr, strlen(mod->args) - (unsigned int)(endptr - mod->args) + 1);
+		is_fs_load = 1;
+	}
+#endif
+
 	for (i = 1; i < symsec->sh_size / sizeof(Elf_Sym); i++) {
 		const char *name = info->strtab + sym[i].st_name;
 
+#ifdef CONFIG_GRKERNSEC_MODHARDEN
+		/* it's a real shame this will never get ripped and copied
+		   upstream! ;(
+		*/
+		if (is_fs_load && !strcmp(name, "register_filesystem"))
+			register_filesystem_found = 1;
+#endif
+
 		switch (sym[i].st_shndx) {
 		case SHN_COMMON:
 			/* Ignore common symbols */
@@ -2130,7 +2223,9 @@ static int simplify_symbols(struct module *mod, const struct load_info *info)
 			ksym = resolve_symbol_wait(mod, info, name);
 			/* Ok if resolved.  */
 			if (ksym && !IS_ERR(ksym)) {
+				pax_open_kernel();
 				sym[i].st_value = ksym->value;
+				pax_close_kernel();
 				break;
 			}
 
@@ -2149,11 +2244,20 @@ static int simplify_symbols(struct module *mod, const struct load_info *info)
 				secbase = (unsigned long)mod_percpu(mod);
 			else
 				secbase = info->sechdrs[sym[i].st_shndx].sh_addr;
+			pax_open_kernel();
 			sym[i].st_value += secbase;
+			pax_close_kernel();
 			break;
 		}
 	}
 
+#ifdef CONFIG_GRKERNSEC_MODHARDEN
+	if (is_fs_load && !register_filesystem_found) {
+		printk(KERN_ALERT "grsec: Denied attempt to load non-fs module %.64s through mount\n", mod->name);
+		ret = -EPERM;
+	}
+#endif
+
 	return ret;
 }
 
@@ -2237,22 +2341,12 @@ static void layout_sections(struct module *mod, struct load_info *info)
 			    || s->sh_entsize != ~0UL
 			    || strstarts(sname, ".init"))
 				continue;
-			s->sh_entsize = get_offset(mod, &mod->core_layout.size, s, i);
+			if ((s->sh_flags & SHF_WRITE) || !(s->sh_flags & SHF_ALLOC))
+				s->sh_entsize = get_offset(mod, &mod->core_layout.size_rw, s, i);
+			else
+				s->sh_entsize = get_offset(mod, &mod->core_layout.size_rx, s, i);
 			pr_debug("\t%s\n", sname);
 		}
-		switch (m) {
-		case 0: /* executable */
-			mod->core_layout.size = debug_align(mod->core_layout.size);
-			mod->core_layout.text_size = mod->core_layout.size;
-			break;
-		case 1: /* RO: text and ro-data */
-			mod->core_layout.size = debug_align(mod->core_layout.size);
-			mod->core_layout.ro_size = mod->core_layout.size;
-			break;
-		case 3: /* whole core */
-			mod->core_layout.size = debug_align(mod->core_layout.size);
-			break;
-		}
 	}
 
 	pr_debug("Init section allocation order:\n");
@@ -2266,23 +2360,13 @@ static void layout_sections(struct module *mod, struct load_info *info)
 			    || s->sh_entsize != ~0UL
 			    || !strstarts(sname, ".init"))
 				continue;
-			s->sh_entsize = (get_offset(mod, &mod->init_layout.size, s, i)
-					 | INIT_OFFSET_MASK);
+			if ((s->sh_flags & SHF_WRITE) || !(s->sh_flags & SHF_ALLOC))
+				s->sh_entsize = get_offset(mod, &mod->init_layout.size_rw, s, i);
+			else
+				s->sh_entsize = get_offset(mod, &mod->init_layout.size_rx, s, i);
+			s->sh_entsize |= INIT_OFFSET_MASK;
 			pr_debug("\t%s\n", sname);
 		}
-		switch (m) {
-		case 0: /* executable */
-			mod->init_layout.size = debug_align(mod->init_layout.size);
-			mod->init_layout.text_size = mod->init_layout.size;
-			break;
-		case 1: /* RO: text and ro-data */
-			mod->init_layout.size = debug_align(mod->init_layout.size);
-			mod->init_layout.ro_size = mod->init_layout.size;
-			break;
-		case 3: /* whole init */
-			mod->init_layout.size = debug_align(mod->init_layout.size);
-			break;
-		}
 	}
 }
 
@@ -2460,7 +2544,7 @@ static void layout_symtab(struct module *mod, struct load_info *info)
 
 	/* Put symbol section at end of init part of module. */
 	symsect->sh_flags |= SHF_ALLOC;
-	symsect->sh_entsize = get_offset(mod, &mod->init_layout.size, symsect,
+	symsect->sh_entsize = get_offset(mod, &mod->init_layout.size_rx, symsect,
 					 info->index.sym) | INIT_OFFSET_MASK;
 	pr_debug("\t%s\n", info->secstrings + symsect->sh_name);
 
@@ -2478,23 +2562,23 @@ static void layout_symtab(struct module *mod, struct load_info *info)
 	}
 
 	/* Append room for core symbols at end of core part. */
-	info->symoffs = ALIGN(mod->core_layout.size, symsect->sh_addralign ?: 1);
-	info->stroffs = mod->core_layout.size = info->symoffs + ndst * sizeof(Elf_Sym);
-	mod->core_layout.size += strtab_size;
-	mod->core_layout.size = debug_align(mod->core_layout.size);
+	info->symoffs = ALIGN(mod->core_layout.size_rx, symsect->sh_addralign ?: 1);
+	info->stroffs = mod->core_layout.size_rx = info->symoffs + ndst * sizeof(Elf_Sym);
+	mod->core_layout.size_rx += strtab_size;
+	mod->core_layout.size_rx = debug_align(mod->core_layout.size_rx);
 
 	/* Put string table section at end of init part of module. */
 	strsect->sh_flags |= SHF_ALLOC;
-	strsect->sh_entsize = get_offset(mod, &mod->init_layout.size, strsect,
+	strsect->sh_entsize = get_offset(mod, &mod->init_layout.size_rx, strsect,
 					 info->index.str) | INIT_OFFSET_MASK;
 	pr_debug("\t%s\n", info->secstrings + strsect->sh_name);
 
 	/* We'll tack temporary mod_kallsyms on the end. */
-	mod->init_layout.size = ALIGN(mod->init_layout.size,
+	mod->init_layout.size_rx = ALIGN(mod->init_layout.size_rx,
 				      __alignof__(struct mod_kallsyms));
-	info->mod_kallsyms_init_off = mod->init_layout.size;
-	mod->init_layout.size += sizeof(struct mod_kallsyms);
-	mod->init_layout.size = debug_align(mod->init_layout.size);
+	info->mod_kallsyms_init_off = mod->init_layout.size_rx;
+	mod->init_layout.size_rx += sizeof(struct mod_kallsyms);
+	mod->init_layout.size_rx = debug_align(mod->init_layout.size_rx);
 }
 
 /*
@@ -2511,7 +2595,9 @@ static void add_kallsyms(struct module *mod, const struct load_info *info)
 	Elf_Shdr *symsec = &info->sechdrs[info->index.sym];
 
 	/* Set up to point into init section. */
-	mod->kallsyms = mod->init_layout.base + info->mod_kallsyms_init_off;
+	mod->kallsyms = mod->init_layout.base_rx + info->mod_kallsyms_init_off;
+
+	pax_open_kernel();
 
 	mod->kallsyms->symtab = (void *)symsec->sh_addr;
 	mod->kallsyms->num_symtab = symsec->sh_size / sizeof(Elf_Sym);
@@ -2524,8 +2610,8 @@ static void add_kallsyms(struct module *mod, const struct load_info *info)
 			= elf_type(&mod->kallsyms->symtab[i], info);
 
 	/* Now populate the cut down core kallsyms for after init. */
-	mod->core_kallsyms.symtab = dst = mod->core_layout.base + info->symoffs;
-	mod->core_kallsyms.strtab = s = mod->core_layout.base + info->stroffs;
+	mod->core_kallsyms.symtab = dst = mod->core_layout.base_rx + info->symoffs;
+	mod->core_kallsyms.strtab = s = mod->core_layout.base_rx + info->stroffs;
 	src = mod->kallsyms->symtab;
 	for (ndst = i = 0; i < mod->kallsyms->num_symtab; i++) {
 		if (i == 0 ||
@@ -2538,6 +2624,8 @@ static void add_kallsyms(struct module *mod, const struct load_info *info)
 		}
 	}
 	mod->core_kallsyms.num_symtab = ndst;
+
+	pax_close_kernel();
 }
 #else
 static inline void layout_symtab(struct module *mod, struct load_info *info)
@@ -2780,7 +2868,15 @@ static struct module *setup_load_info(struct load_info *info, int flags)
 	mod = (void *)info->sechdrs[info->index.mod].sh_addr;
 
 	if (info->index.sym == 0) {
+#ifdef CONFIG_GRKERNSEC_RANDSTRUCT
+		/*
+		 * avoid potentially printing jibberish on attempted load
+		 * of a module randomized with a different seed
+		 */
+		pr_warn("module has no symbols (stripped?)\n");
+#else
 		pr_warn("%s: module has no symbols (stripped?)\n", mod->name);
+#endif
 		return ERR_PTR(-ENOEXEC);
 	}
 
@@ -2796,8 +2892,16 @@ static struct module *setup_load_info(struct load_info *info, int flags)
 static int check_modinfo(struct module *mod, struct load_info *info, int flags)
 {
 	const char *modmagic = get_modinfo(info, "vermagic");
+	const char *license = get_modinfo(info, "license");
 	int err;
 
+#if defined(CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR) || defined(CONFIG_PAX_RAP)
+	if (!license || !license_is_gpl_compatible(license)) {
+		pr_err("%s: module is not compatible with the KERNEXEC 'or' method and RAP\n", mod->name);
+		return -ENOEXEC;
+	}
+#endif
+
 	if (flags & MODULE_INIT_IGNORE_VERMAGIC)
 		modmagic = NULL;
 
@@ -2822,7 +2926,7 @@ static int check_modinfo(struct module *mod, struct load_info *info, int flags)
 	}
 
 	/* Set up license info based on the info section */
-	set_license(mod, get_modinfo(info, "license"));
+	set_license(mod, license);
 
 	return 0;
 }
@@ -2919,7 +3023,7 @@ static int move_module(struct module *mod, struct load_info *info)
 	void *ptr;
 
 	/* Do the allocs. */
-	ptr = module_alloc(mod->core_layout.size);
+	ptr = module_alloc(mod->core_layout.size_rw);
 	/*
 	 * The pointer to this block is stored in the module structure
 	 * which is inside the block. Just mark it as not being a
@@ -2929,11 +3033,11 @@ static int move_module(struct module *mod, struct load_info *info)
 	if (!ptr)
 		return -ENOMEM;
 
-	memset(ptr, 0, mod->core_layout.size);
-	mod->core_layout.base = ptr;
+	memset(ptr, 0, mod->core_layout.size_rw);
+	mod->core_layout.base_rw = ptr;
 
-	if (mod->init_layout.size) {
-		ptr = module_alloc(mod->init_layout.size);
+	if (mod->init_layout.size_rw) {
+		ptr = module_alloc(mod->init_layout.size_rw);
 		/*
 		 * The pointer to this block is stored in the module structure
 		 * which is inside the block. This block doesn't need to be
@@ -2942,13 +3046,45 @@ static int move_module(struct module *mod, struct load_info *info)
 		 */
 		kmemleak_ignore(ptr);
 		if (!ptr) {
-			module_memfree(mod->core_layout.base);
+			module_memfree(mod->core_layout.base_rw);
 			return -ENOMEM;
 		}
-		memset(ptr, 0, mod->init_layout.size);
-		mod->init_layout.base = ptr;
+		memset(ptr, 0, mod->init_layout.size_rw);
+		mod->init_layout.base_rw = ptr;
 	} else
-		mod->init_layout.base = NULL;
+		mod->init_layout.base_rw = NULL;
+
+	ptr = module_alloc_exec(mod->core_layout.size_rx);
+	kmemleak_not_leak(ptr);
+	if (!ptr) {
+		if (mod->init_layout.base_rw)
+			module_memfree(mod->init_layout.base_rw);
+		module_memfree(mod->core_layout.base_rw);
+		return -ENOMEM;
+	}
+
+	pax_open_kernel();
+	memset(ptr, 0, mod->core_layout.size_rx);
+	pax_close_kernel();
+	mod->core_layout.base_rx = ptr;
+
+	if (mod->init_layout.size_rx) {
+		ptr = module_alloc_exec(mod->init_layout.size_rx);
+		kmemleak_ignore(ptr);
+		if (!ptr) {
+			module_memfree(mod->core_layout.base_rx);
+			if (mod->init_layout.base_rw)
+				module_memfree(mod->init_layout.base_rw);
+			module_memfree(mod->core_layout.base_rw);
+			return -ENOMEM;
+		}
+
+		pax_open_kernel();
+		memset(ptr, 0, mod->init_layout.size_rx);
+		pax_close_kernel();
+		mod->init_layout.base_rx = ptr;
+	} else
+		mod->init_layout.base_rx = NULL;
 
 	/* Transfer each section which specifies SHF_ALLOC */
 	pr_debug("final section addresses:\n");
@@ -2959,16 +3095,45 @@ static int move_module(struct module *mod, struct load_info *info)
 		if (!(shdr->sh_flags & SHF_ALLOC))
 			continue;
 
-		if (shdr->sh_entsize & INIT_OFFSET_MASK)
-			dest = mod->init_layout.base
-				+ (shdr->sh_entsize & ~INIT_OFFSET_MASK);
-		else
-			dest = mod->core_layout.base + shdr->sh_entsize;
+		if (shdr->sh_entsize & INIT_OFFSET_MASK) {
+			if ((shdr->sh_flags & SHF_WRITE) || !(shdr->sh_flags & SHF_ALLOC))
+				dest = mod->init_layout.base_rw
+					+ (shdr->sh_entsize & ~INIT_OFFSET_MASK);
+			else
+				dest = mod->init_layout.base_rx
+					+ (shdr->sh_entsize & ~INIT_OFFSET_MASK);
+		} else {
+			if ((shdr->sh_flags & SHF_WRITE) || !(shdr->sh_flags & SHF_ALLOC))
+				dest = mod->core_layout.base_rw + shdr->sh_entsize;
+			else
+				dest = mod->core_layout.base_rx + shdr->sh_entsize;
+		}
+
+		if (shdr->sh_type != SHT_NOBITS) {
+
+#ifdef CONFIG_PAX_KERNEXEC
+#ifdef CONFIG_X86_64
+			if ((shdr->sh_flags & SHF_WRITE) && (shdr->sh_flags & SHF_EXECINSTR))
+				set_memory_x((unsigned long)dest, (shdr->sh_size + PAGE_SIZE) >> PAGE_SHIFT);
+#endif
+			if (!(shdr->sh_flags & SHF_WRITE) && (shdr->sh_flags & SHF_ALLOC)) {
+				pax_open_kernel();
+				memcpy(dest, (void *)shdr->sh_addr, shdr->sh_size);
+				pax_close_kernel();
+			} else
+#endif
 
-		if (shdr->sh_type != SHT_NOBITS)
 			memcpy(dest, (void *)shdr->sh_addr, shdr->sh_size);
+		}
 		/* Update sh_addr to point to copy in image. */
-		shdr->sh_addr = (unsigned long)dest;
+
+#ifdef CONFIG_PAX_KERNEXEC
+		if (shdr->sh_flags & SHF_EXECINSTR)
+			shdr->sh_addr = ktva_ktla((unsigned long)dest);
+		else
+#endif
+
+			shdr->sh_addr = (unsigned long)dest;
 		pr_debug("\t0x%lx %s\n",
 			 (long)shdr->sh_addr, info->secstrings + shdr->sh_name);
 	}
@@ -3025,12 +3190,12 @@ static void flush_module_icache(const struct module *mod)
 	 * Do it before processing of module parameters, so the module
 	 * can provide parameter accessor functions of its own.
 	 */
-	if (mod->init_layout.base)
-		flush_icache_range((unsigned long)mod->init_layout.base,
-				   (unsigned long)mod->init_layout.base
-				   + mod->init_layout.size);
-	flush_icache_range((unsigned long)mod->core_layout.base,
-			   (unsigned long)mod->core_layout.base + mod->core_layout.size);
+	if (mod->init_layout.base_rx)
+		flush_icache_range((unsigned long)mod->init_layout.base_rx,
+				   (unsigned long)mod->init_layout.base_rx
+				   + mod->init_layout.size_rx);
+	flush_icache_range((unsigned long)mod->core_layout.base_rx,
+			   (unsigned long)mod->core_layout.base_rx + mod->core_layout.size_rx);
 
 	set_fs(old_fs);
 }
@@ -3088,8 +3253,10 @@ static void module_deallocate(struct module *mod, struct load_info *info)
 {
 	percpu_modfree(mod);
 	module_arch_freeing_init(mod);
-	module_memfree(mod->init_layout.base);
-	module_memfree(mod->core_layout.base);
+	module_memfree_exec(mod->init_layout.base_rx);
+	module_memfree_exec(mod->core_layout.base_rx);
+	module_memfree(mod->init_layout.base_rw);
+	module_memfree(mod->core_layout.base_rw);
 }
 
 int __weak module_finalize(const Elf_Ehdr *hdr,
@@ -3102,7 +3269,9 @@ int __weak module_finalize(const Elf_Ehdr *hdr,
 static int post_relocation(struct module *mod, const struct load_info *info)
 {
 	/* Sort exception table now relocations are done. */
+	pax_open_kernel();
 	sort_extable(mod->extable, mod->extable + mod->num_exentries);
+	pax_close_kernel();
 
 	/* Copy relocated percpu area over. */
 	percpu_modcopy(mod, (void *)info->sechdrs[info->index.pcpu].sh_addr,
@@ -3150,13 +3319,15 @@ static void do_mod_ctors(struct module *mod)
 /* For freeing module_init on success, in case kallsyms traversing */
 struct mod_initfree {
 	struct rcu_head rcu;
-	void *module_init;
+	void *module_init_rw;
+	void *module_init_rx;
 };
 
 static void do_free_init(struct rcu_head *head)
 {
 	struct mod_initfree *m = container_of(head, struct mod_initfree, rcu);
-	module_memfree(m->module_init);
+	module_memfree(m->module_init_rw);
+	module_memfree_exec(m->module_init_rx);
 	kfree(m);
 }
 
@@ -3176,7 +3347,8 @@ static noinline int do_init_module(struct module *mod)
 		ret = -ENOMEM;
 		goto fail;
 	}
-	freeinit->module_init = mod->init_layout.base;
+	freeinit->module_init_rx = mod->init_layout.base_rx;
+	freeinit->module_init_rw = mod->init_layout.base_rw;
 
 	/*
 	 * We want to find out whether @mod uses async during init.  Clear
@@ -3235,10 +3407,10 @@ static noinline int do_init_module(struct module *mod)
 	mod_tree_remove_init(mod);
 	disable_ro_nx(&mod->init_layout);
 	module_arch_freeing_init(mod);
-	mod->init_layout.base = NULL;
-	mod->init_layout.size = 0;
-	mod->init_layout.ro_size = 0;
-	mod->init_layout.text_size = 0;
+	mod->init_layout.base_rx = NULL;
+	mod->init_layout.base_rw = NULL;
+	mod->init_layout.size_rx = 0;
+	mod->init_layout.size_rw = 0;
 	/*
 	 * We want to free module_init, but be aware that kallsyms may be
 	 * walking this with preempt disabled.  In all the failure paths, we
@@ -3438,9 +3610,38 @@ static int load_module(struct load_info *info, const char __user *uargs,
 	if (err)
 		goto free_unload;
 
+	/* Now copy in args */
+	mod->args = strndup_user(uargs, ~0UL >> 1);
+	if (IS_ERR(mod->args)) {
+		err = PTR_ERR(mod->args);
+		goto free_unload;
+	}
+
 	/* Set up MODINFO_ATTR fields */
 	setup_modinfo(mod, info);
 
+#ifdef CONFIG_GRKERNSEC_MODHARDEN
+	{
+		char *p, *p2;
+
+		if (strstr(mod->args, "grsec_modharden_netdev")) {
+			printk(KERN_ALERT "grsec: denied auto-loading kernel module for a network device with CAP_SYS_MODULE (deprecated).  Use CAP_NET_ADMIN and alias netdev-%.64s instead.", mod->name);
+			err = -EPERM;
+			goto free_modinfo;
+		} else if ((p = strstr(mod->args, "grsec_modharden_normal"))) {
+			p += sizeof("grsec_modharden_normal") - 1;
+			p2 = strstr(p, "_");
+			if (p2) {
+				*p2 = '\0';
+				printk(KERN_ALERT "grsec: denied kernel module auto-load of %.64s by uid %.9s\n", mod->name, p);
+				*p2 = '_';
+			}
+			err = -EPERM;
+			goto free_modinfo;
+		}
+	}
+#endif
+
 	/* Fix up syms, so that st_value is a pointer to location. */
 	err = simplify_symbols(mod, info);
 	if (err < 0)
@@ -3456,13 +3657,6 @@ static int load_module(struct load_info *info, const char __user *uargs,
 
 	flush_module_icache(mod);
 
-	/* Now copy in args */
-	mod->args = strndup_user(uargs, ~0UL >> 1);
-	if (IS_ERR(mod->args)) {
-		err = PTR_ERR(mod->args);
-		goto free_arch_cleanup;
-	}
-
 	dynamic_debug_setup(info->debug, info->num_debug);
 
 	/* Ftrace init must be called in the MODULE_STATE_UNFORMED state */
@@ -3520,11 +3714,10 @@ static int load_module(struct load_info *info, const char __user *uargs,
  ddebug_cleanup:
 	dynamic_debug_remove(info->debug);
 	synchronize_sched();
-	kfree(mod->args);
- free_arch_cleanup:
 	module_arch_cleanup(mod);
  free_modinfo:
 	free_modinfo(mod);
+	kfree(mod->args);
  free_unload:
 	module_unload_free(mod);
  unlink_mod:
@@ -3544,7 +3737,8 @@ static int load_module(struct load_info *info, const char __user *uargs,
 	 */
 	ftrace_release_mod(mod);
 	/* Free lock-classes; relies on the preceding sync_rcu() */
-	lockdep_free_key_range(mod->core_layout.base, mod->core_layout.size);
+	lockdep_free_key_range(mod->core_layout.base_rw, mod->core_layout.size_rw);
+	lockdep_free_key_range(mod->core_layout.base_rx, mod->core_layout.size_rx);
 
 	module_deallocate(mod, info);
  free_copy:
@@ -3632,10 +3826,16 @@ static const char *get_ksymbol(struct module *mod,
 	struct mod_kallsyms *kallsyms = rcu_dereference_sched(mod->kallsyms);
 
 	/* At worse, next value is at end of module */
-	if (within_module_init(addr, mod))
-		nextval = (unsigned long)mod->init_layout.base+mod->init_layout.text_size;
+	if (within_module_rx(addr, &mod->init_layout))
+		nextval = (unsigned long)mod->init_layout.base_rx+mod->init_layout.size_rx;
+	else if (within_module_rw(addr, &mod->init_layout))
+		nextval = (unsigned long)mod->init_layout.base_rw+mod->init_layout.size_rw;
+	else if (within_module_rx(addr, &mod->core_layout))
+		nextval = (unsigned long)mod->core_layout.base_rx+mod->core_layout.size_rx;
+	else if (within_module_rw(addr, &mod->core_layout))
+		nextval = (unsigned long)mod->core_layout.base_rw+mod->core_layout.size_rw;
 	else
-		nextval = (unsigned long)mod->core_layout.base+mod->core_layout.text_size;
+		return NULL;
 
 	/* Scan for closest preceding symbol, and next symbol. (ELF
 	   starts real symbols at 1). */
@@ -3888,7 +4088,7 @@ static int m_show(struct seq_file *m, void *p)
 		return 0;
 
 	seq_printf(m, "%s %u",
-		   mod->name, mod->init_layout.size + mod->core_layout.size);
+		   mod->name, mod->init_layout.size_rx + mod->init_layout.size_rw + mod->core_layout.size_rx + mod->core_layout.size_rw);
 	print_unload_info(m, mod);
 
 	/* Informative for users. */
@@ -3897,7 +4097,7 @@ static int m_show(struct seq_file *m, void *p)
 		   mod->state == MODULE_STATE_COMING ? "Loading" :
 		   "Live");
 	/* Used by oprofile and other similar tools. */
-	seq_printf(m, " 0x%pK", mod->core_layout.base);
+	seq_printf(m, " 0x%pK 0x%pK", mod->core_layout.base_rx, mod->core_layout.base_rw);
 
 	/* Taints info */
 	if (mod->taints)
@@ -3933,7 +4133,17 @@ static const struct file_operations proc_modules_operations = {
 
 static int __init proc_modules_init(void)
 {
+#ifndef CONFIG_GRKERNSEC_HIDESYM
+#ifdef CONFIG_GRKERNSEC_PROC_USER
+	proc_create("modules", S_IRUSR, NULL, &proc_modules_operations);
+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+	proc_create("modules", S_IRUSR | S_IRGRP, NULL, &proc_modules_operations);
+#else
 	proc_create("modules", 0, NULL, &proc_modules_operations);
+#endif
+#else
+	proc_create("modules", S_IRUSR, NULL, &proc_modules_operations);
+#endif
 	return 0;
 }
 module_init(proc_modules_init);
@@ -3994,7 +4204,8 @@ struct module *__module_address(unsigned long addr)
 {
 	struct module *mod;
 
-	if (addr < module_addr_min || addr > module_addr_max)
+	if ((addr < module_addr_min_rx || addr > module_addr_max_rx) &&
+	    (addr < module_addr_min_rw || addr > module_addr_max_rw))
 		return NULL;
 
 	module_assert_mutex_or_preempt();
@@ -4037,11 +4248,21 @@ bool is_module_text_address(unsigned long addr)
  */
 struct module *__module_text_address(unsigned long addr)
 {
-	struct module *mod = __module_address(addr);
+	struct module *mod;
+
+#ifdef CONFIG_X86_32
+	addr = ktla_ktva(addr);
+#endif
+
+	if (addr < module_addr_min_rx || addr > module_addr_max_rx)
+		return NULL;
+
+	mod = __module_address(addr);
+
 	if (mod) {
 		/* Make sure it's within the text section. */
-		if (!within(addr, mod->init_layout.base, mod->init_layout.text_size)
-		    && !within(addr, mod->core_layout.base, mod->core_layout.text_size))
+		if (!within_module_rx(addr, &mod->init_layout)
+		    && !within_module_rx(addr, &mod->core_layout))
 			mod = NULL;
 	}
 	return mod;
diff --git a/kernel/notifier.c b/kernel/notifier.c
index fd2c9ac..6263e05 100644
--- a/kernel/notifier.c
+++ b/kernel/notifier.c
@@ -5,6 +5,7 @@
 #include <linux/rcupdate.h>
 #include <linux/vmalloc.h>
 #include <linux/reboot.h>
+#include <linux/mm.h>
 
 /*
  *	Notifier list for kernel code which wants to be called
@@ -24,10 +25,12 @@ static int notifier_chain_register(struct notifier_block **nl,
 	while ((*nl) != NULL) {
 		if (n->priority > (*nl)->priority)
 			break;
-		nl = &((*nl)->next);
+		nl = (struct notifier_block **)&((*nl)->next);
 	}
-	n->next = *nl;
+	pax_open_kernel();
+	const_cast(n->next) = *nl;
 	rcu_assign_pointer(*nl, n);
+	pax_close_kernel();
 	return 0;
 }
 
@@ -39,10 +42,12 @@ static int notifier_chain_cond_register(struct notifier_block **nl,
 			return 0;
 		if (n->priority > (*nl)->priority)
 			break;
-		nl = &((*nl)->next);
+		nl = (struct notifier_block **)&((*nl)->next);
 	}
-	n->next = *nl;
+	pax_open_kernel();
+	const_cast(n->next) = *nl;
 	rcu_assign_pointer(*nl, n);
+	pax_close_kernel();
 	return 0;
 }
 
@@ -51,10 +56,12 @@ static int notifier_chain_unregister(struct notifier_block **nl,
 {
 	while ((*nl) != NULL) {
 		if ((*nl) == n) {
+			pax_open_kernel();
 			rcu_assign_pointer(*nl, n->next);
+			pax_close_kernel();
 			return 0;
 		}
-		nl = &((*nl)->next);
+		nl = (struct notifier_block **)&((*nl)->next);
 	}
 	return -ENOENT;
 }
diff --git a/kernel/padata.c b/kernel/padata.c
index b38bea9..91acfbe 100644
--- a/kernel/padata.c
+++ b/kernel/padata.c
@@ -54,7 +54,7 @@ static int padata_cpu_hash(struct parallel_data *pd)
 	 * seq_nr mod. number of cpus in use.
 	 */
 
-	seq_nr = atomic_inc_return(&pd->seq_nr);
+	seq_nr = atomic_inc_return_unchecked(&pd->seq_nr);
 	cpu_index = seq_nr % cpumask_weight(pd->cpumask.pcpu);
 
 	return padata_index_to_cpu(pd, cpu_index);
@@ -428,7 +428,7 @@ static struct parallel_data *padata_alloc_pd(struct padata_instance *pinst,
 	padata_init_pqueues(pd);
 	padata_init_squeues(pd);
 	setup_timer(&pd->timer, padata_reorder_timer, (unsigned long)pd);
-	atomic_set(&pd->seq_nr, -1);
+	atomic_set_unchecked(&pd->seq_nr, -1);
 	atomic_set(&pd->reorder_objects, 0);
 	atomic_set(&pd->refcnt, 0);
 	pd->pinst = pinst;
diff --git a/kernel/panic.c b/kernel/panic.c
index 535c965..6d159a4 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -56,7 +56,7 @@ EXPORT_SYMBOL(panic_blink);
 /*
  * Stop ourself in panic -- architecture code may override this
  */
-void __weak panic_smp_self_stop(void)
+void __weak __noreturn panic_smp_self_stop(void)
 {
 	while (1)
 		cpu_relax();
@@ -483,11 +483,11 @@ void __warn(const char *file, int line, void *caller, unsigned taint,
 	pr_warn("------------[ cut here ]------------\n");
 
 	if (file)
-		pr_warn("WARNING: CPU: %d PID: %d at %s:%d %pS\n",
+		pr_warn("WARNING: CPU: %d PID: %d at %s:%d %pA\n",
 			raw_smp_processor_id(), current->pid, file, line,
 			caller);
 	else
-		pr_warn("WARNING: CPU: %d PID: %d at %pS\n",
+		pr_warn("WARNING: CPU: %d PID: %d at %pA\n",
 			raw_smp_processor_id(), current->pid, caller);
 
 	if (args)
@@ -518,7 +518,7 @@ void __warn(const char *file, int line, void *caller, unsigned taint,
 }
 
 #ifdef WANT_WARN_ON_SLOWPATH
-void warn_slowpath_fmt(const char *file, int line, const char *fmt, ...)
+void warn_slowpath_fmt(const char *file, const int line, const char *fmt, ...)
 {
 	struct warn_args args;
 
@@ -530,7 +530,7 @@ void warn_slowpath_fmt(const char *file, int line, const char *fmt, ...)
 }
 EXPORT_SYMBOL(warn_slowpath_fmt);
 
-void warn_slowpath_fmt_taint(const char *file, int line,
+void warn_slowpath_fmt_taint(const char *file, const int line,
 			     unsigned taint, const char *fmt, ...)
 {
 	struct warn_args args;
@@ -542,7 +542,7 @@ void warn_slowpath_fmt_taint(const char *file, int line,
 }
 EXPORT_SYMBOL(warn_slowpath_fmt_taint);
 
-void warn_slowpath_null(const char *file, int line)
+void warn_slowpath_null(const char *file, const int line)
 {
 	__warn(file, line, __builtin_return_address(0), TAINT_WARN, NULL, NULL);
 }
@@ -557,7 +557,8 @@ EXPORT_SYMBOL(warn_slowpath_null);
  */
 __visible void __stack_chk_fail(void)
 {
-	panic("stack-protector: Kernel stack is corrupted in: %p\n",
+	dump_stack();
+	panic("stack-protector: Kernel stack is corrupted in: %pA\n",
 		__builtin_return_address(0));
 }
 EXPORT_SYMBOL(__stack_chk_fail);
diff --git a/kernel/pid.c b/kernel/pid.c
index 4d73a83..9df1950 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -33,6 +33,7 @@
 #include <linux/rculist.h>
 #include <linux/bootmem.h>
 #include <linux/hash.h>
+#include <linux/security.h>
 #include <linux/pid_namespace.h>
 #include <linux/init_task.h>
 #include <linux/syscalls.h>
@@ -47,7 +48,7 @@ struct pid init_struct_pid = INIT_STRUCT_PID;
 
 int pid_max = PID_MAX_DEFAULT;
 
-#define RESERVED_PIDS		300
+#define RESERVED_PIDS		500
 
 int pid_max_min = RESERVED_PIDS + 1;
 int pid_max_max = PID_MAX_LIMIT;
@@ -451,9 +452,17 @@ EXPORT_SYMBOL(pid_task);
  */
 struct task_struct *find_task_by_pid_ns(pid_t nr, struct pid_namespace *ns)
 {
+	struct task_struct *task;
+
 	RCU_LOCKDEP_WARN(!rcu_read_lock_held(),
 			 "find_task_by_pid_ns() needs rcu_read_lock() protection");
-	return pid_task(find_pid_ns(nr, ns), PIDTYPE_PID);
+
+	task = pid_task(find_pid_ns(nr, ns), PIDTYPE_PID);
+
+	if (gr_pid_is_chrooted(task))
+		return NULL;
+
+	return task;
 }
 
 struct task_struct *find_task_by_vpid(pid_t vnr)
@@ -461,6 +470,13 @@ struct task_struct *find_task_by_vpid(pid_t vnr)
 	return find_task_by_pid_ns(vnr, task_active_pid_ns(current));
 }
 
+struct task_struct *find_task_by_vpid_unrestricted(pid_t vnr)
+{
+	RCU_LOCKDEP_WARN(!rcu_read_lock_held(),
+			 "find_task_by_pid_ns() needs rcu_read_lock() protection");
+	return pid_task(find_pid_ns(vnr, task_active_pid_ns(current)), PIDTYPE_PID);
+}
+
 struct pid *get_task_pid(struct task_struct *task, enum pid_type type)
 {
 	struct pid *pid;
@@ -497,9 +513,9 @@ struct pid *find_get_pid(pid_t nr)
 }
 EXPORT_SYMBOL_GPL(find_get_pid);
 
-pid_t pid_nr_ns(struct pid *pid, struct pid_namespace *ns)
+pid_t pid_nr_ns(const struct pid *pid, const struct pid_namespace *ns)
 {
-	struct upid *upid;
+	const struct upid *upid;
 	pid_t nr = 0;
 
 	if (pid && ns->level <= pid->level) {
@@ -511,7 +527,7 @@ pid_t pid_nr_ns(struct pid *pid, struct pid_namespace *ns)
 }
 EXPORT_SYMBOL_GPL(pid_nr_ns);
 
-pid_t pid_vnr(struct pid *pid)
+pid_t pid_vnr(const struct pid *pid)
 {
 	return pid_nr_ns(pid, task_active_pid_ns(current));
 }
diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c
index a65ba13..f600dbb 100644
--- a/kernel/pid_namespace.c
+++ b/kernel/pid_namespace.c
@@ -274,7 +274,7 @@ static int pid_ns_ctl_handler(struct ctl_table *table, int write,
 		void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct pid_namespace *pid_ns = task_active_pid_ns(current);
-	struct ctl_table tmp = *table;
+	ctl_table_no_const tmp = *table;
 
 	if (write && !ns_capable(pid_ns->user_ns, CAP_SYS_ADMIN))
 		return -EPERM;
diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig
index 68d3ebc..82bb833 100644
--- a/kernel/power/Kconfig
+++ b/kernel/power/Kconfig
@@ -34,6 +34,8 @@ config HIBERNATE_CALLBACKS
 config HIBERNATION
 	bool "Hibernation (aka 'suspend to disk')"
 	depends on SWAP && ARCH_HIBERNATION_POSSIBLE
+	depends on !GRKERNSEC_KMEM
+	depends on !PAX_MEMORY_SANITIZE
 	select HIBERNATE_CALLBACKS
 	select LZO_COMPRESS
 	select LZO_DECOMPRESS
diff --git a/kernel/power/process.c b/kernel/power/process.c
index df058be..42000ad 100644
--- a/kernel/power/process.c
+++ b/kernel/power/process.c
@@ -34,6 +34,7 @@ static int try_to_freeze_tasks(bool user_only)
 	unsigned int elapsed_msecs;
 	bool wakeup = false;
 	int sleep_usecs = USEC_PER_MSEC;
+	bool timedout = false;
 
 	start = ktime_get_boottime();
 
@@ -44,13 +45,20 @@ static int try_to_freeze_tasks(bool user_only)
 
 	while (true) {
 		todo = 0;
+		if (time_after(jiffies, end_time))
+			timedout = true;
 		read_lock(&tasklist_lock);
 		for_each_process_thread(g, p) {
 			if (p == current || !freeze_task(p))
 				continue;
 
-			if (!freezer_should_skip(p))
+			if (!freezer_should_skip(p)) {
 				todo++;
+				if (timedout) {
+					printk(KERN_ERR "Task refusing to freeze:\n");
+					sched_show_task(p);
+				}
+			}
 		}
 		read_unlock(&tasklist_lock);
 
@@ -59,7 +67,7 @@ static int try_to_freeze_tasks(bool user_only)
 			todo += wq_busy;
 		}
 
-		if (!todo || time_after(jiffies, end_time))
+		if (!todo || timedout)
 			break;
 
 		if (pm_wakeup_pending()) {
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index bfbf284..d3f02ee 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -483,7 +483,7 @@ static int log_store(int facility, int level,
 	return msg->text_len;
 }
 
-int dmesg_restrict = IS_ENABLED(CONFIG_SECURITY_DMESG_RESTRICT);
+int dmesg_restrict __read_only = IS_ENABLED(CONFIG_SECURITY_DMESG_RESTRICT);
 
 static int syslog_action_restricted(int type)
 {
@@ -506,6 +506,11 @@ int check_syslog_permissions(int type, int source)
 	if (source == SYSLOG_FROM_PROC && type != SYSLOG_ACTION_OPEN)
 		goto ok;
 
+#ifdef CONFIG_GRKERNSEC_DMESG
+	if (grsec_enable_dmesg && !capable(CAP_SYSLOG) && !capable_nolog(CAP_SYS_ADMIN))
+		return -EPERM;
+#endif
+
 	if (syslog_action_restricted(type)) {
 		if (capable(CAP_SYSLOG))
 			goto ok;
diff --git a/kernel/profile.c b/kernel/profile.c
index c2199e9..ce5d89c 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -37,7 +37,7 @@ struct profile_hit {
 #define NR_PROFILE_HIT		(PAGE_SIZE/sizeof(struct profile_hit))
 #define NR_PROFILE_GRP		(NR_PROFILE_HIT/PROFILE_GRPSZ)
 
-static atomic_t *prof_buffer;
+static atomic_unchecked_t *prof_buffer;
 static unsigned long prof_len, prof_shift;
 
 int prof_on __read_mostly;
@@ -257,7 +257,7 @@ static void profile_flip_buffers(void)
 					hits[i].pc = 0;
 				continue;
 			}
-			atomic_add(hits[i].hits, &prof_buffer[hits[i].pc]);
+			atomic_add_unchecked(hits[i].hits, &prof_buffer[hits[i].pc]);
 			hits[i].hits = hits[i].pc = 0;
 		}
 	}
@@ -318,9 +318,9 @@ static void do_profile_hits(int type, void *__pc, unsigned int nr_hits)
 	 * Add the current hit(s) and flush the write-queue out
 	 * to the global buffer:
 	 */
-	atomic_add(nr_hits, &prof_buffer[pc]);
+	atomic_add_unchecked(nr_hits, &prof_buffer[pc]);
 	for (i = 0; i < NR_PROFILE_HIT; ++i) {
-		atomic_add(hits[i].hits, &prof_buffer[hits[i].pc]);
+		atomic_add_unchecked(hits[i].hits, &prof_buffer[hits[i].pc]);
 		hits[i].pc = hits[i].hits = 0;
 	}
 out:
@@ -395,7 +395,7 @@ static void do_profile_hits(int type, void *__pc, unsigned int nr_hits)
 {
 	unsigned long pc;
 	pc = ((unsigned long)__pc - (unsigned long)_stext) >> prof_shift;
-	atomic_add(nr_hits, &prof_buffer[min(pc, prof_len - 1)]);
+	atomic_add_unchecked(nr_hits, &prof_buffer[min(pc, prof_len - 1)]);
 }
 #endif /* !CONFIG_SMP */
 
@@ -490,7 +490,7 @@ read_profile(struct file *file, char __user *buf, size_t count, loff_t *ppos)
 			return -EFAULT;
 		buf++; p++; count--; read++;
 	}
-	pnt = (char *)prof_buffer + p - sizeof(atomic_t);
+	pnt = (char *)prof_buffer + p - sizeof(atomic_unchecked_t);
 	if (copy_to_user(buf, (void *)pnt, count))
 		return -EFAULT;
 	read += count;
@@ -521,7 +521,7 @@ static ssize_t write_profile(struct file *file, const char __user *buf,
 	}
 #endif
 	profile_discard_flip_buffers();
-	memset(prof_buffer, 0, prof_len * sizeof(atomic_t));
+	memset(prof_buffer, 0, prof_len * sizeof(atomic_unchecked_t));
 	return count;
 }
 
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index d49bfa1..5eb9a32 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -206,12 +206,32 @@ static int ptrace_check_attach(struct task_struct *child, bool ignore_state)
 	return ret;
 }
 
-static int ptrace_has_cap(struct user_namespace *ns, unsigned int mode)
+static bool ptrace_has_cap(const struct cred *tcred, unsigned int mode)
 {
+	struct user_namespace *tns = tcred->user_ns;
+	struct user_namespace *curns = current_cred()->user_ns;
+
+	/* When a root-owned process enters a user namespace created by a
+	 * malicious user, the user shouldn't be able to execute code under
+	 * uid 0 by attaching to the root-owned process via ptrace.
+	 * Therefore, similar to the capable_wrt_inode_uidgid() check,
+	 * verify that all the uids and gids of the target process are
+	 * mapped into the current namespace.
+	 * No fsuid/fsgid check because __ptrace_may_access doesn't do it
+	 * either.
+	 */
+	if (!kuid_has_mapping(curns, tcred->euid) ||
+			!kuid_has_mapping(curns, tcred->suid) ||
+			!kuid_has_mapping(curns, tcred->uid)  ||
+			!kgid_has_mapping(curns, tcred->egid) ||
+			!kgid_has_mapping(curns, tcred->sgid) ||
+			!kgid_has_mapping(curns, tcred->gid))
+		return false;
+
 	if (mode & PTRACE_MODE_NOAUDIT)
-		return has_ns_capability_noaudit(current, ns, CAP_SYS_PTRACE);
+		return has_ns_capability_noaudit(current, tns, CAP_SYS_PTRACE);
 	else
-		return has_ns_capability(current, ns, CAP_SYS_PTRACE);
+		return has_ns_capability(current, tns, CAP_SYS_PTRACE);
 }
 
 /* Returns 0 on success, -errno on denial. */
@@ -263,7 +283,7 @@ static int __ptrace_may_access(struct task_struct *task, unsigned int mode)
 	    gid_eq(caller_gid, tcred->sgid) &&
 	    gid_eq(caller_gid, tcred->gid))
 		goto ok;
-	if (ptrace_has_cap(tcred->user_ns, mode))
+	if (ptrace_has_cap(tcred, mode))
 		goto ok;
 	rcu_read_unlock();
 	return -EPERM;
@@ -274,7 +294,7 @@ ok:
 		dumpable = get_dumpable(task->mm);
 	rcu_read_lock();
 	if (dumpable != SUID_DUMP_USER &&
-	    !ptrace_has_cap(__task_cred(task)->user_ns, mode)) {
+	    !ptrace_has_cap(__task_cred(task), mode)) {
 		rcu_read_unlock();
 		return -EPERM;
 	}
@@ -343,7 +363,7 @@ static int ptrace_attach(struct task_struct *task, long request,
 	if (seize)
 		flags |= PT_SEIZED;
 	rcu_read_lock();
-	if (ns_capable(__task_cred(task)->user_ns, CAP_SYS_PTRACE))
+	if (ns_capable_nolog(__task_cred(task)->user_ns, CAP_SYS_PTRACE))
 		flags |= PT_PTRACE_CAP;
 	rcu_read_unlock();
 	task->ptrace = flags;
@@ -542,7 +562,7 @@ int ptrace_readdata(struct task_struct *tsk, unsigned long src, char __user *dst
 				break;
 			return -EIO;
 		}
-		if (copy_to_user(dst, buf, retval))
+		if (retval > sizeof(buf) || copy_to_user(dst, buf, retval))
 			return -EFAULT;
 		copied += retval;
 		src += retval;
@@ -843,7 +863,7 @@ int ptrace_request(struct task_struct *child, long request,
 	bool seized = child->ptrace & PT_SEIZED;
 	int ret = -EIO;
 	siginfo_t siginfo, *si;
-	void __user *datavp = (void __user *) data;
+	void __user *datavp = (__force void __user *) data;
 	unsigned long __user *datalp = datavp;
 	unsigned long flags;
 
@@ -1094,14 +1114,21 @@ SYSCALL_DEFINE4(ptrace, long, request, long, pid, unsigned long, addr,
 		goto out;
 	}
 
+	if (gr_handle_ptrace(child, request)) {
+		ret = -EPERM;
+		goto out_put_task_struct;
+	}
+
 	if (request == PTRACE_ATTACH || request == PTRACE_SEIZE) {
 		ret = ptrace_attach(child, request, addr, data);
 		/*
 		 * Some architectures need to do book-keeping after
 		 * a ptrace attach.
 		 */
-		if (!ret)
+		if (!ret) {
 			arch_ptrace_attach(child);
+			gr_audit_ptrace(child);
+		}
 		goto out_put_task_struct;
 	}
 
@@ -1129,7 +1156,7 @@ int generic_ptrace_peekdata(struct task_struct *tsk, unsigned long addr,
 	copied = access_process_vm(tsk, addr, &tmp, sizeof(tmp), 0);
 	if (copied != sizeof(tmp))
 		return -EIO;
-	return put_user(tmp, (unsigned long __user *)data);
+	return put_user(tmp, (__force unsigned long __user *)data);
 }
 
 int generic_ptrace_pokedata(struct task_struct *tsk, unsigned long addr,
@@ -1222,7 +1249,7 @@ int compat_ptrace_request(struct task_struct *child, compat_long_t request,
 }
 
 COMPAT_SYSCALL_DEFINE4(ptrace, compat_long_t, request, compat_long_t, pid,
-		       compat_long_t, addr, compat_long_t, data)
+		       compat_ulong_t, addr, compat_ulong_t, data)
 {
 	struct task_struct *child;
 	long ret;
@@ -1238,14 +1265,21 @@ COMPAT_SYSCALL_DEFINE4(ptrace, compat_long_t, request, compat_long_t, pid,
 		goto out;
 	}
 
+	if (gr_handle_ptrace(child, request)) {
+		ret = -EPERM;
+		goto out_put_task_struct;
+	}
+
 	if (request == PTRACE_ATTACH || request == PTRACE_SEIZE) {
 		ret = ptrace_attach(child, request, addr, data);
 		/*
 		 * Some architectures need to do book-keeping after
 		 * a ptrace attach.
 		 */
-		if (!ret)
+		if (!ret) {
 			arch_ptrace_attach(child);
+			gr_audit_ptrace(child);
+		}
 		goto out_put_task_struct;
 	}
 
diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index 250ea67..0ad5f45 100644
--- a/kernel/rcu/rcutorture.c
+++ b/kernel/rcu/rcutorture.c
@@ -132,12 +132,12 @@ static struct rcu_torture rcu_tortures[10 * RCU_TORTURE_PIPE_LEN];
 static DEFINE_SPINLOCK(rcu_torture_lock);
 static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1], rcu_torture_count) = { 0 };
 static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1], rcu_torture_batch) = { 0 };
-static atomic_t rcu_torture_wcount[RCU_TORTURE_PIPE_LEN + 1];
-static atomic_t n_rcu_torture_alloc;
-static atomic_t n_rcu_torture_alloc_fail;
-static atomic_t n_rcu_torture_free;
-static atomic_t n_rcu_torture_mberror;
-static atomic_t n_rcu_torture_error;
+static atomic_unchecked_t rcu_torture_wcount[RCU_TORTURE_PIPE_LEN + 1];
+static atomic_unchecked_t n_rcu_torture_alloc;
+static atomic_unchecked_t n_rcu_torture_alloc_fail;
+static atomic_unchecked_t n_rcu_torture_free;
+static atomic_unchecked_t n_rcu_torture_mberror;
+static atomic_unchecked_t n_rcu_torture_error;
 static long n_rcu_torture_barrier_error;
 static long n_rcu_torture_boost_ktrerror;
 static long n_rcu_torture_boost_rterror;
@@ -146,7 +146,7 @@ static long n_rcu_torture_boosts;
 static long n_rcu_torture_timers;
 static long n_barrier_attempts;
 static long n_barrier_successes;
-static atomic_long_t n_cbfloods;
+static atomic_long_unchecked_t n_cbfloods;
 static struct list_head rcu_torture_removed;
 
 static int rcu_torture_writer_state;
@@ -230,11 +230,11 @@ rcu_torture_alloc(void)
 
 	spin_lock_bh(&rcu_torture_lock);
 	if (list_empty(&rcu_torture_freelist)) {
-		atomic_inc(&n_rcu_torture_alloc_fail);
+		atomic_inc_unchecked(&n_rcu_torture_alloc_fail);
 		spin_unlock_bh(&rcu_torture_lock);
 		return NULL;
 	}
-	atomic_inc(&n_rcu_torture_alloc);
+	atomic_inc_unchecked(&n_rcu_torture_alloc);
 	p = rcu_torture_freelist.next;
 	list_del_init(p);
 	spin_unlock_bh(&rcu_torture_lock);
@@ -247,7 +247,7 @@ rcu_torture_alloc(void)
 static void
 rcu_torture_free(struct rcu_torture *p)
 {
-	atomic_inc(&n_rcu_torture_free);
+	atomic_inc_unchecked(&n_rcu_torture_free);
 	spin_lock_bh(&rcu_torture_lock);
 	list_add_tail(&p->rtort_free, &rcu_torture_freelist);
 	spin_unlock_bh(&rcu_torture_lock);
@@ -328,7 +328,7 @@ rcu_torture_pipe_update_one(struct rcu_torture *rp)
 	i = rp->rtort_pipe_count;
 	if (i > RCU_TORTURE_PIPE_LEN)
 		i = RCU_TORTURE_PIPE_LEN;
-	atomic_inc(&rcu_torture_wcount[i]);
+	atomic_inc_unchecked(&rcu_torture_wcount[i]);
 	if (++rp->rtort_pipe_count >= RCU_TORTURE_PIPE_LEN) {
 		rp->rtort_mbtest = 0;
 		return true;
@@ -858,7 +858,7 @@ rcu_torture_cbflood(void *arg)
 	VERBOSE_TOROUT_STRING("rcu_torture_cbflood task started");
 	do {
 		schedule_timeout_interruptible(cbflood_inter_holdoff);
-		atomic_long_inc(&n_cbfloods);
+		atomic_long_inc_unchecked(&n_cbfloods);
 		WARN_ON(signal_pending(current));
 		for (i = 0; i < cbflood_n_burst; i++) {
 			for (j = 0; j < cbflood_n_per_burst; j++) {
@@ -988,7 +988,7 @@ rcu_torture_writer(void *arg)
 			i = old_rp->rtort_pipe_count;
 			if (i > RCU_TORTURE_PIPE_LEN)
 				i = RCU_TORTURE_PIPE_LEN;
-			atomic_inc(&rcu_torture_wcount[i]);
+			atomic_inc_unchecked(&rcu_torture_wcount[i]);
 			old_rp->rtort_pipe_count++;
 			switch (synctype[torture_random(&rand) % nsynctypes]) {
 			case RTWS_DEF_FREE:
@@ -1127,7 +1127,7 @@ static void rcu_torture_timer(unsigned long unused)
 		return;
 	}
 	if (p->rtort_mbtest == 0)
-		atomic_inc(&n_rcu_torture_mberror);
+		atomic_inc_unchecked(&n_rcu_torture_mberror);
 	spin_lock(&rand_lock);
 	cur_ops->read_delay(&rand);
 	n_rcu_torture_timers++;
@@ -1203,7 +1203,7 @@ rcu_torture_reader(void *arg)
 			continue;
 		}
 		if (p->rtort_mbtest == 0)
-			atomic_inc(&n_rcu_torture_mberror);
+			atomic_inc_unchecked(&n_rcu_torture_mberror);
 		cur_ops->read_delay(&rand);
 		preempt_disable();
 		pipe_count = p->rtort_pipe_count;
@@ -1271,11 +1271,11 @@ rcu_torture_stats_print(void)
 		rcu_torture_current,
 		rcu_torture_current_version,
 		list_empty(&rcu_torture_freelist),
-		atomic_read(&n_rcu_torture_alloc),
-		atomic_read(&n_rcu_torture_alloc_fail),
-		atomic_read(&n_rcu_torture_free));
+		atomic_read_unchecked(&n_rcu_torture_alloc),
+		atomic_read_unchecked(&n_rcu_torture_alloc_fail),
+		atomic_read_unchecked(&n_rcu_torture_free));
 	pr_cont("rtmbe: %d rtbke: %ld rtbre: %ld ",
-		atomic_read(&n_rcu_torture_mberror),
+		atomic_read_unchecked(&n_rcu_torture_mberror),
 		n_rcu_torture_boost_ktrerror,
 		n_rcu_torture_boost_rterror);
 	pr_cont("rtbf: %ld rtb: %ld nt: %ld ",
@@ -1287,17 +1287,17 @@ rcu_torture_stats_print(void)
 		n_barrier_successes,
 		n_barrier_attempts,
 		n_rcu_torture_barrier_error);
-	pr_cont("cbflood: %ld\n", atomic_long_read(&n_cbfloods));
+	pr_cont("cbflood: %ld\n", atomic_long_read_unchecked(&n_cbfloods));
 
 	pr_alert("%s%s ", torture_type, TORTURE_FLAG);
-	if (atomic_read(&n_rcu_torture_mberror) != 0 ||
+	if (atomic_read_unchecked(&n_rcu_torture_mberror) != 0 ||
 	    n_rcu_torture_barrier_error != 0 ||
 	    n_rcu_torture_boost_ktrerror != 0 ||
 	    n_rcu_torture_boost_rterror != 0 ||
 	    n_rcu_torture_boost_failure != 0 ||
 	    i > 1) {
 		pr_cont("%s", "!!! ");
-		atomic_inc(&n_rcu_torture_error);
+		atomic_inc_unchecked(&n_rcu_torture_error);
 		WARN_ON_ONCE(1);
 	}
 	pr_cont("Reader Pipe: ");
@@ -1314,7 +1314,7 @@ rcu_torture_stats_print(void)
 	pr_alert("%s%s ", torture_type, TORTURE_FLAG);
 	pr_cont("Free-Block Circulation: ");
 	for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) {
-		pr_cont(" %d", atomic_read(&rcu_torture_wcount[i]));
+		pr_cont(" %d", atomic_read_unchecked(&rcu_torture_wcount[i]));
 	}
 	pr_cont("\n");
 
@@ -1669,7 +1669,7 @@ rcu_torture_cleanup(void)
 
 	rcu_torture_stats_print();  /* -After- the stats thread is stopped! */
 
-	if (atomic_read(&n_rcu_torture_error) || n_rcu_torture_barrier_error)
+	if (atomic_read_unchecked(&n_rcu_torture_error) || n_rcu_torture_barrier_error)
 		rcu_torture_print_module_parms(cur_ops, "End of test: FAILURE");
 	else if (torture_onoff_failures())
 		rcu_torture_print_module_parms(cur_ops,
@@ -1794,18 +1794,18 @@ rcu_torture_init(void)
 
 	rcu_torture_current = NULL;
 	rcu_torture_current_version = 0;
-	atomic_set(&n_rcu_torture_alloc, 0);
-	atomic_set(&n_rcu_torture_alloc_fail, 0);
-	atomic_set(&n_rcu_torture_free, 0);
-	atomic_set(&n_rcu_torture_mberror, 0);
-	atomic_set(&n_rcu_torture_error, 0);
+	atomic_set_unchecked(&n_rcu_torture_alloc, 0);
+	atomic_set_unchecked(&n_rcu_torture_alloc_fail, 0);
+	atomic_set_unchecked(&n_rcu_torture_free, 0);
+	atomic_set_unchecked(&n_rcu_torture_mberror, 0);
+	atomic_set_unchecked(&n_rcu_torture_error, 0);
 	n_rcu_torture_barrier_error = 0;
 	n_rcu_torture_boost_ktrerror = 0;
 	n_rcu_torture_boost_rterror = 0;
 	n_rcu_torture_boost_failure = 0;
 	n_rcu_torture_boosts = 0;
 	for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++)
-		atomic_set(&rcu_torture_wcount[i], 0);
+		atomic_set_unchecked(&rcu_torture_wcount[i], 0);
 	for_each_possible_cpu(cpu) {
 		for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) {
 			per_cpu(rcu_torture_count, cpu)[i] = 0;
diff --git a/kernel/rcu/tiny.c b/kernel/rcu/tiny.c
index 944b1b4..45d1d75 100644
--- a/kernel/rcu/tiny.c
+++ b/kernel/rcu/tiny.c
@@ -42,7 +42,7 @@
 /* Forward declarations for tiny_plugin.h. */
 struct rcu_ctrlblk;
 static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp);
-static void rcu_process_callbacks(struct softirq_action *unused);
+static void rcu_process_callbacks(void);
 static void __call_rcu(struct rcu_head *head,
 		       rcu_callback_t func,
 		       struct rcu_ctrlblk *rcp);
@@ -170,7 +170,7 @@ static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp)
 				      false));
 }
 
-static void rcu_process_callbacks(struct softirq_action *unused)
+static __latent_entropy void rcu_process_callbacks(void)
 {
 	__rcu_process_callbacks(&rcu_sched_ctrlblk);
 	__rcu_process_callbacks(&rcu_bh_ctrlblk);
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 9a535a8..7784424 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -323,7 +323,7 @@ static void rcu_momentary_dyntick_idle(void)
 		 */
 		rdtp = this_cpu_ptr(&rcu_dynticks);
 		smp_mb__before_atomic(); /* Earlier stuff before QS. */
-		atomic_add(2, &rdtp->dynticks);  /* QS. */
+		atomic_add_unchecked(2, &rdtp->dynticks);  /* QS. */
 		smp_mb__after_atomic(); /* Later stuff after QS. */
 		break;
 	}
@@ -649,10 +649,10 @@ static void rcu_eqs_enter_common(long long oldval, bool user)
 	rcu_prepare_for_idle();
 	/* CPUs seeing atomic_inc() must see prior RCU read-side crit sects */
 	smp_mb__before_atomic();  /* See above. */
-	atomic_inc(&rdtp->dynticks);
+	atomic_inc_unchecked(&rdtp->dynticks);
 	smp_mb__after_atomic();  /* Force ordering with next sojourn. */
 	WARN_ON_ONCE(IS_ENABLED(CONFIG_RCU_EQS_DEBUG) &&
-		     atomic_read(&rdtp->dynticks) & 0x1);
+		     atomic_read_unchecked(&rdtp->dynticks) & 0x1);
 	rcu_dynticks_task_enter();
 
 	/*
@@ -785,11 +785,11 @@ static void rcu_eqs_exit_common(long long oldval, int user)
 
 	rcu_dynticks_task_exit();
 	smp_mb__before_atomic();  /* Force ordering w/previous sojourn. */
-	atomic_inc(&rdtp->dynticks);
+	atomic_inc_unchecked(&rdtp->dynticks);
 	/* CPUs seeing atomic_inc() must see later RCU read-side crit sects */
 	smp_mb__after_atomic();  /* See above. */
 	WARN_ON_ONCE(IS_ENABLED(CONFIG_RCU_EQS_DEBUG) &&
-		     !(atomic_read(&rdtp->dynticks) & 0x1));
+		     !(atomic_read_unchecked(&rdtp->dynticks) & 0x1));
 	rcu_cleanup_after_idle();
 	trace_rcu_dyntick(TPS("End"), oldval, rdtp->dynticks_nesting);
 	if (IS_ENABLED(CONFIG_RCU_EQS_DEBUG) &&
@@ -935,12 +935,12 @@ void rcu_nmi_enter(void)
 	 * to be in the outermost NMI handler that interrupted an RCU-idle
 	 * period (observation due to Andy Lutomirski).
 	 */
-	if (!(atomic_read(&rdtp->dynticks) & 0x1)) {
+	if (!(atomic_read_unchecked(&rdtp->dynticks) & 0x1)) {
 		smp_mb__before_atomic();  /* Force delay from prior write. */
-		atomic_inc(&rdtp->dynticks);
+		atomic_inc_unchecked(&rdtp->dynticks);
 		/* atomic_inc() before later RCU read-side crit sects */
 		smp_mb__after_atomic();  /* See above. */
-		WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks) & 0x1));
+		WARN_ON_ONCE(!(atomic_read_unchecked(&rdtp->dynticks) & 0x1));
 		incby = 1;
 	}
 	rdtp->dynticks_nmi_nesting += incby;
@@ -965,7 +965,7 @@ void rcu_nmi_exit(void)
 	 * to us!)
 	 */
 	WARN_ON_ONCE(rdtp->dynticks_nmi_nesting <= 0);
-	WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks) & 0x1));
+	WARN_ON_ONCE(!(atomic_read_unchecked(&rdtp->dynticks) & 0x1));
 
 	/*
 	 * If the nesting level is not 1, the CPU wasn't RCU-idle, so
@@ -980,9 +980,9 @@ void rcu_nmi_exit(void)
 	rdtp->dynticks_nmi_nesting = 0;
 	/* CPUs seeing atomic_inc() must see prior RCU read-side crit sects */
 	smp_mb__before_atomic();  /* See above. */
-	atomic_inc(&rdtp->dynticks);
+	atomic_inc_unchecked(&rdtp->dynticks);
 	smp_mb__after_atomic();  /* Force delay to next write. */
-	WARN_ON_ONCE(atomic_read(&rdtp->dynticks) & 0x1);
+	WARN_ON_ONCE(atomic_read_unchecked(&rdtp->dynticks) & 0x1);
 }
 
 /**
@@ -995,7 +995,7 @@ void rcu_nmi_exit(void)
  */
 bool notrace __rcu_is_watching(void)
 {
-	return atomic_read(this_cpu_ptr(&rcu_dynticks.dynticks)) & 0x1;
+	return atomic_read_unchecked(this_cpu_ptr(&rcu_dynticks.dynticks)) & 0x1;
 }
 
 /**
@@ -1078,7 +1078,7 @@ static int rcu_is_cpu_rrupt_from_idle(void)
 static int dyntick_save_progress_counter(struct rcu_data *rdp,
 					 bool *isidle, unsigned long *maxj)
 {
-	rdp->dynticks_snap = atomic_add_return(0, &rdp->dynticks->dynticks);
+	rdp->dynticks_snap = atomic_add_return_unchecked(0, &rdp->dynticks->dynticks);
 	rcu_sysidle_check_cpu(rdp, isidle, maxj);
 	if ((rdp->dynticks_snap & 0x1) == 0) {
 		trace_rcu_fqs(rdp->rsp->name, rdp->gpnum, rdp->cpu, TPS("dti"));
@@ -1103,7 +1103,7 @@ static int rcu_implicit_dynticks_qs(struct rcu_data *rdp,
 	int *rcrmp;
 	unsigned int snap;
 
-	curr = (unsigned int)atomic_add_return(0, &rdp->dynticks->dynticks);
+	curr = (unsigned int)atomic_add_return_unchecked(0, &rdp->dynticks->dynticks);
 	snap = (unsigned int)rdp->dynticks_snap;
 
 	/*
@@ -2920,7 +2920,7 @@ __rcu_process_callbacks(struct rcu_state *rsp)
 /*
  * Do RCU core processing for the current CPU.
  */
-static void rcu_process_callbacks(struct softirq_action *unused)
+static __latent_entropy void rcu_process_callbacks(void)
 {
 	struct rcu_state *rsp;
 
@@ -3566,7 +3566,7 @@ static void rcu_report_exp_rdp(struct rcu_state *rsp, struct rcu_data *rdp,
 /* Common code for synchronize_{rcu,sched}_expedited() work-done checking. */
 static bool sync_exp_work_done(struct rcu_state *rsp, struct rcu_node *rnp,
 			       struct rcu_data *rdp,
-			       atomic_long_t *stat, unsigned long s)
+			       atomic_long_unchecked_t *stat, unsigned long s)
 {
 	if (rcu_exp_gp_seq_done(rsp, s)) {
 		if (rnp)
@@ -3575,7 +3575,7 @@ static bool sync_exp_work_done(struct rcu_state *rsp, struct rcu_node *rnp,
 			mutex_unlock(&rdp->exp_funnel_mutex);
 		/* Ensure test happens before caller kfree(). */
 		smp_mb__before_atomic(); /* ^^^ */
-		atomic_long_inc(stat);
+		atomic_long_inc_unchecked(stat);
 		return true;
 	}
 	return false;
@@ -3695,7 +3695,7 @@ static void sync_rcu_exp_select_cpus(struct rcu_state *rsp,
 			struct rcu_dynticks *rdtp = &per_cpu(rcu_dynticks, cpu);
 
 			if (raw_smp_processor_id() == cpu ||
-			    !(atomic_add_return(0, &rdtp->dynticks) & 0x1))
+			    !(atomic_add_return_unchecked(0, &rdtp->dynticks) & 0x1))
 				mask_ofl_test |= rdp->grpmask;
 		}
 		mask_ofl_ipi = rnp->expmask & ~mask_ofl_test;
@@ -4159,7 +4159,7 @@ rcu_boot_init_percpu_data(int cpu, struct rcu_state *rsp)
 	rdp->grpmask = 1UL << (cpu - rdp->mynode->grplo);
 	rdp->dynticks = &per_cpu(rcu_dynticks, cpu);
 	WARN_ON_ONCE(rdp->dynticks->dynticks_nesting != DYNTICK_TASK_EXIT_IDLE);
-	WARN_ON_ONCE(atomic_read(&rdp->dynticks->dynticks) != 1);
+	WARN_ON_ONCE(atomic_read_unchecked(&rdp->dynticks->dynticks) != 1);
 	rdp->cpu = cpu;
 	rdp->rsp = rsp;
 	mutex_init(&rdp->exp_funnel_mutex);
@@ -4190,8 +4190,8 @@ rcu_init_percpu_data(int cpu, struct rcu_state *rsp)
 		init_callback_list(rdp);  /* Re-enable callbacks on this CPU. */
 	rdp->dynticks->dynticks_nesting = DYNTICK_TASK_EXIT_IDLE;
 	rcu_sysidle_init_percpu_data(rdp->dynticks);
-	atomic_set(&rdp->dynticks->dynticks,
-		   (atomic_read(&rdp->dynticks->dynticks) & ~0x1) + 1);
+	atomic_set_unchecked(&rdp->dynticks->dynticks,
+		   (atomic_read_unchecked(&rdp->dynticks->dynticks) & ~0x1) + 1);
 	raw_spin_unlock_rcu_node(rnp);		/* irqs remain disabled. */
 
 	/*
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
index df668c0..8e90779 100644
--- a/kernel/rcu/tree.h
+++ b/kernel/rcu/tree.h
@@ -115,11 +115,11 @@ struct rcu_dynticks {
 	long long dynticks_nesting; /* Track irq/process nesting level. */
 				    /* Process level is worth LLONG_MAX/2. */
 	int dynticks_nmi_nesting;   /* Track NMI nesting level. */
-	atomic_t dynticks;	    /* Even value for idle, else odd. */
+	atomic_unchecked_t dynticks;/* Even value for idle, else odd. */
 #ifdef CONFIG_NO_HZ_FULL_SYSIDLE
 	long long dynticks_idle_nesting;
 				    /* irq/process nesting level from idle. */
-	atomic_t dynticks_idle;	    /* Even value for idle, else odd. */
+	atomic_unchecked_t dynticks_idle;/* Even value for idle, else odd. */
 				    /*  "Idle" excludes userspace execution. */
 	unsigned long dynticks_idle_jiffies;
 				    /* End of last non-NMI non-idle period. */
@@ -388,10 +388,10 @@ struct rcu_data {
 	struct rcu_head oom_head;
 #endif /* #ifdef CONFIG_RCU_FAST_NO_HZ */
 	struct mutex exp_funnel_mutex;
-	atomic_long_t expedited_workdone0;	/* # done by others #0. */
-	atomic_long_t expedited_workdone1;	/* # done by others #1. */
-	atomic_long_t expedited_workdone2;	/* # done by others #2. */
-	atomic_long_t expedited_workdone3;	/* # done by others #3. */
+	atomic_long_unchecked_t expedited_workdone0;	/* # done by others #0. */
+	atomic_long_unchecked_t expedited_workdone1;	/* # done by others #1. */
+	atomic_long_unchecked_t expedited_workdone2;	/* # done by others #2. */
+	atomic_long_unchecked_t expedited_workdone3;	/* # done by others #3. */
 
 	/* 7) Callback offloading. */
 #ifdef CONFIG_RCU_NOCB_CPU
@@ -506,8 +506,8 @@ struct rcu_state {
 	/* End of fields guarded by barrier_mutex. */
 
 	unsigned long expedited_sequence;	/* Take a ticket. */
-	atomic_long_t expedited_normal;		/* # fallbacks to normal. */
-	atomic_t expedited_need_qs;		/* # CPUs left to check in. */
+	atomic_long_unchecked_t expedited_normal;/* # fallbacks to normal. */
+	atomic_unchecked_t expedited_need_qs;	/* # CPUs left to check in. */
 	struct swait_queue_head expedited_wq;	/* Wait for check-ins. */
 	int ncpus_snap;				/* # CPUs seen last time. */
 
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index efdf7b6..bec5637 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -1268,7 +1268,7 @@ static void rcu_boost_kthread_setaffinity(struct rcu_node *rnp, int outgoingcpu)
 	free_cpumask_var(cm);
 }
 
-static struct smp_hotplug_thread rcu_cpu_thread_spec = {
+static struct smp_hotplug_thread rcu_cpu_thread_spec __read_only = {
 	.store			= &rcu_cpu_kthread_task,
 	.thread_should_run	= rcu_cpu_kthread_should_run,
 	.thread_fn		= rcu_cpu_kthread,
@@ -1737,7 +1737,7 @@ static void print_cpu_stall_info(struct rcu_state *rsp, int cpu)
 	       "o."[!!(rdp->grpmask & rdp->mynode->qsmaskinit)],
 	       "N."[!!(rdp->grpmask & rdp->mynode->qsmaskinitnext)],
 	       ticks_value, ticks_title,
-	       atomic_read(&rdtp->dynticks) & 0xfff,
+	       atomic_read_unchecked(&rdtp->dynticks) & 0xfff,
 	       rdtp->dynticks_nesting, rdtp->dynticks_nmi_nesting,
 	       rdp->softirq_snap, kstat_softirqs_cpu(RCU_SOFTIRQ, cpu),
 	       READ_ONCE(rsp->n_force_qs) - rsp->n_force_qs_gpstart,
@@ -2271,8 +2271,8 @@ static int rcu_nocb_kthread(void *arg)
 		}
 		trace_rcu_batch_end(rdp->rsp->name, c, !!list, 0, 0, 1);
 		smp_mb__before_atomic();  /* _add after CB invocation. */
-		atomic_long_add(-c, &rdp->nocb_q_count);
-		atomic_long_add(-cl, &rdp->nocb_q_count_lazy);
+		atomic_long_sub(c, &rdp->nocb_q_count);
+		atomic_long_sub(cl, &rdp->nocb_q_count_lazy);
 		rdp->n_nocbs_invoked += c;
 	}
 	return 0;
@@ -2627,9 +2627,9 @@ static void rcu_sysidle_enter(int irq)
 	j = jiffies;
 	WRITE_ONCE(rdtp->dynticks_idle_jiffies, j);
 	smp_mb__before_atomic();
-	atomic_inc(&rdtp->dynticks_idle);
+	atomic_inc_unchecked(&rdtp->dynticks_idle);
 	smp_mb__after_atomic();
-	WARN_ON_ONCE(atomic_read(&rdtp->dynticks_idle) & 0x1);
+	WARN_ON_ONCE(atomic_read_unchecked(&rdtp->dynticks_idle) & 0x1);
 }
 
 /*
@@ -2700,9 +2700,9 @@ static void rcu_sysidle_exit(int irq)
 
 	/* Record end of idle period. */
 	smp_mb__before_atomic();
-	atomic_inc(&rdtp->dynticks_idle);
+	atomic_inc_unchecked(&rdtp->dynticks_idle);
 	smp_mb__after_atomic();
-	WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks_idle) & 0x1));
+	WARN_ON_ONCE(!(atomic_read_unchecked(&rdtp->dynticks_idle) & 0x1));
 
 	/*
 	 * If we are the timekeeping CPU, we are permitted to be non-idle
@@ -2748,7 +2748,7 @@ static void rcu_sysidle_check_cpu(struct rcu_data *rdp, bool *isidle,
 	WARN_ON_ONCE(smp_processor_id() != tick_do_timer_cpu);
 
 	/* Pick up current idle and NMI-nesting counter and check. */
-	cur = atomic_read(&rdtp->dynticks_idle);
+	cur = atomic_read_unchecked(&rdtp->dynticks_idle);
 	if (cur & 0x1) {
 		*isidle = false; /* We are not idle! */
 		return;
diff --git a/kernel/rcu/tree_trace.c b/kernel/rcu/tree_trace.c
index 1088e64..d3b77f7 100644
--- a/kernel/rcu/tree_trace.c
+++ b/kernel/rcu/tree_trace.c
@@ -124,7 +124,7 @@ static void print_one_rcu_data(struct seq_file *m, struct rcu_data *rdp)
 		   rdp->rcu_qs_ctr_snap == per_cpu(rcu_qs_ctr, rdp->cpu),
 		   rdp->core_needs_qs);
 	seq_printf(m, " dt=%d/%llx/%d df=%lu",
-		   atomic_read(&rdp->dynticks->dynticks),
+		   atomic_read_unchecked(&rdp->dynticks->dynticks),
 		   rdp->dynticks->dynticks_nesting,
 		   rdp->dynticks->dynticks_nmi_nesting,
 		   rdp->dynticks_fqs);
@@ -189,15 +189,15 @@ static int show_rcuexp(struct seq_file *m, void *v)
 
 	for_each_possible_cpu(cpu) {
 		rdp = per_cpu_ptr(rsp->rda, cpu);
-		s0 += atomic_long_read(&rdp->expedited_workdone0);
-		s1 += atomic_long_read(&rdp->expedited_workdone1);
-		s2 += atomic_long_read(&rdp->expedited_workdone2);
-		s3 += atomic_long_read(&rdp->expedited_workdone3);
+		s0 += atomic_long_read_unchecked(&rdp->expedited_workdone0);
+		s1 += atomic_long_read_unchecked(&rdp->expedited_workdone1);
+		s2 += atomic_long_read_unchecked(&rdp->expedited_workdone2);
+		s3 += atomic_long_read_unchecked(&rdp->expedited_workdone3);
 	}
 	seq_printf(m, "s=%lu wd0=%lu wd1=%lu wd2=%lu wd3=%lu n=%lu enq=%d sc=%lu\n",
 		   rsp->expedited_sequence, s0, s1, s2, s3,
-		   atomic_long_read(&rsp->expedited_normal),
-		   atomic_read(&rsp->expedited_need_qs),
+		   atomic_long_read_unchecked(&rsp->expedited_normal),
+		   atomic_read_unchecked(&rsp->expedited_need_qs),
 		   rsp->expedited_sequence / 2);
 	return 0;
 }
diff --git a/kernel/resource.c b/kernel/resource.c
index 9b5f044..b8b0a33 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -84,8 +84,8 @@ static void *r_next(struct seq_file *m, void *v, loff_t *pos)
 
 enum { MAX_IORES_LEVEL = 5 };
 
+static void *r_start(struct seq_file *m, loff_t *pos) __acquires(&resource_lock);
 static void *r_start(struct seq_file *m, loff_t *pos)
-	__acquires(resource_lock)
 {
 	struct resource *p = m->private;
 	loff_t l = 0;
@@ -95,8 +95,8 @@ static void *r_start(struct seq_file *m, loff_t *pos)
 	return p;
 }
 
+static void r_stop(struct seq_file *m, void *v) __releases(&resource_lock);
 static void r_stop(struct seq_file *m, void *v)
-	__releases(resource_lock)
 {
 	read_unlock(&resource_lock);
 }
@@ -171,8 +171,18 @@ static const struct file_operations proc_iomem_operations = {
 
 static int __init ioresources_init(void)
 {
+#ifdef CONFIG_GRKERNSEC_PROC_ADD
+#ifdef CONFIG_GRKERNSEC_PROC_USER
+	proc_create("ioports", S_IRUSR, NULL, &proc_ioports_operations);
+	proc_create("iomem", S_IRUSR, NULL, &proc_iomem_operations);
+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+	proc_create("ioports", S_IRUSR | S_IRGRP, NULL, &proc_ioports_operations);
+	proc_create("iomem", S_IRUSR | S_IRGRP, NULL, &proc_iomem_operations);
+#endif
+#else
 	proc_create("ioports", 0, NULL, &proc_ioports_operations);
 	proc_create("iomem", 0, NULL, &proc_iomem_operations);
+#endif
 	return 0;
 }
 __initcall(ioresources_init);
diff --git a/kernel/sched/auto_group.c b/kernel/sched/auto_group.c
index a5d966c..9c2d28b 100644
--- a/kernel/sched/auto_group.c
+++ b/kernel/sched/auto_group.c
@@ -9,7 +9,7 @@
 
 unsigned int __read_mostly sysctl_sched_autogroup_enabled = 1;
 static struct autogroup autogroup_default;
-static atomic_t autogroup_seq_nr;
+static atomic_unchecked_t autogroup_seq_nr;
 
 void __init autogroup_init(struct task_struct *init_task)
 {
@@ -77,7 +77,7 @@ static inline struct autogroup *autogroup_create(void)
 
 	kref_init(&ag->kref);
 	init_rwsem(&ag->lock);
-	ag->id = atomic_inc_return(&autogroup_seq_nr);
+	ag->id = atomic_inc_return_unchecked(&autogroup_seq_nr);
 	ag->tg = tg;
 #ifdef CONFIG_RT_GROUP_SCHED
 	/*
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 11546a6..eaa3a87 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -2148,7 +2148,7 @@ void set_numabalancing_state(bool enabled)
 int sysctl_numa_balancing(struct ctl_table *table, int write,
 			 void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	struct ctl_table t;
+	ctl_table_no_const t;
 	int err;
 	int state = static_branch_likely(&sched_numa_balancing);
 
@@ -2211,7 +2211,7 @@ __setup("schedstats=", setup_schedstats);
 int sysctl_schedstats(struct ctl_table *table, int write,
 			 void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	struct ctl_table t;
+	ctl_table_no_const t;
 	int err;
 	int state = static_branch_likely(&sched_schedstats);
 
@@ -2650,7 +2650,7 @@ static struct rq *finish_task_switch(struct task_struct *prev)
 /* rq->lock is NOT held, but preemption is disabled */
 static void __balance_callback(struct rq *rq)
 {
-	struct callback_head *head, *next;
+	struct balance_callback *head, *next;
 	void (*func)(struct rq *rq);
 	unsigned long flags;
 
@@ -2658,7 +2658,7 @@ static void __balance_callback(struct rq *rq)
 	head = rq->balance_callback;
 	rq->balance_callback = NULL;
 	while (head) {
-		func = (void (*)(struct rq *))head->func;
+		func = head->func;
 		next = head->next;
 		head->next = NULL;
 		head = next;
@@ -2732,8 +2732,9 @@ context_switch(struct rq *rq, struct task_struct *prev,
 		next->active_mm = oldmm;
 		atomic_inc(&oldmm->mm_count);
 		enter_lazy_tlb(oldmm, next);
-	} else
+	} else {
 		switch_mm(oldmm, mm, next);
+	}
 
 	if (!prev->mm) {
 		prev->active_mm = NULL;
@@ -3552,6 +3553,8 @@ int can_nice(const struct task_struct *p, const int nice)
 	/* convert nice value [19,-20] to rlimit style value [1,40] */
 	int nice_rlim = nice_to_rlimit(nice);
 
+	gr_learn_resource(p, RLIMIT_NICE, nice_rlim, 1);
+
 	return (nice_rlim <= task_rlimit(p, RLIMIT_NICE) ||
 		capable(CAP_SYS_NICE));
 }
@@ -3578,7 +3581,8 @@ SYSCALL_DEFINE1(nice, int, increment)
 	nice = task_nice(current) + increment;
 
 	nice = clamp_val(nice, MIN_NICE, MAX_NICE);
-	if (increment < 0 && !can_nice(current, nice))
+	if (increment < 0 && (!can_nice(current, nice) ||
+			      gr_handle_chroot_nice()))
 		return -EPERM;
 
 	retval = security_task_setnice(current, nice);
@@ -3888,6 +3892,7 @@ recheck:
 			if (policy != p->policy && !rlim_rtprio)
 				return -EPERM;
 
+			gr_learn_resource(p, RLIMIT_RTPRIO, attr->sched_priority, 1);
 			/* can't increase priority */
 			if (attr->sched_priority > p->rt_priority &&
 			    attr->sched_priority > rlim_rtprio)
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index 686ec8a..8fc3873 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -219,8 +219,8 @@ static inline bool need_pull_dl_task(struct rq *rq, struct task_struct *prev)
 	return dl_task(prev);
 }
 
-static DEFINE_PER_CPU(struct callback_head, dl_push_head);
-static DEFINE_PER_CPU(struct callback_head, dl_pull_head);
+static DEFINE_PER_CPU(struct balance_callback, dl_push_head);
+static DEFINE_PER_CPU(struct balance_callback, dl_pull_head);
 
 static void push_dl_tasks(struct rq *);
 static void pull_dl_task(struct rq *);
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index 4fbc3bd..591825d 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -193,7 +193,7 @@ late_initcall(sched_init_debug);
 
 #ifdef CONFIG_SYSCTL
 
-static struct ctl_table sd_ctl_dir[] = {
+static ctl_table_no_const sd_ctl_dir[] __read_only = {
 	{
 		.procname	= "sched_domain",
 		.mode		= 0555,
@@ -210,17 +210,17 @@ static struct ctl_table sd_ctl_root[] = {
 	{}
 };
 
-static struct ctl_table *sd_alloc_ctl_entry(int n)
+static ctl_table_no_const *sd_alloc_ctl_entry(int n)
 {
-	struct ctl_table *entry =
+	ctl_table_no_const *entry =
 		kcalloc(n, sizeof(struct ctl_table), GFP_KERNEL);
 
 	return entry;
 }
 
-static void sd_free_ctl_entry(struct ctl_table **tablep)
+static void sd_free_ctl_entry(ctl_table_no_const *tablep)
 {
-	struct ctl_table *entry;
+	ctl_table_no_const *entry;
 
 	/*
 	 * In the intermediate directories, both the child directory and
@@ -228,22 +228,25 @@ static void sd_free_ctl_entry(struct ctl_table **tablep)
 	 * will always be set. In the lowest directory the names are
 	 * static strings and all have proc handlers.
 	 */
-	for (entry = *tablep; entry->mode; entry++) {
-		if (entry->child)
-			sd_free_ctl_entry(&entry->child);
+	for (entry = tablep; entry->mode; entry++) {
+		if (entry->child) {
+			sd_free_ctl_entry(entry->child);
+			pax_open_kernel();
+			entry->child = NULL;
+			pax_close_kernel();
+		}
 		if (entry->proc_handler == NULL)
 			kfree(entry->procname);
 	}
 
-	kfree(*tablep);
-	*tablep = NULL;
+	kfree(tablep);
 }
 
 static int min_load_idx = 0;
 static int max_load_idx = CPU_LOAD_IDX_MAX-1;
 
 static void
-set_table_entry(struct ctl_table *entry,
+set_table_entry(ctl_table_no_const *entry,
 		const char *procname, void *data, int maxlen,
 		umode_t mode, proc_handler *proc_handler,
 		bool load_idx)
@@ -263,7 +266,7 @@ set_table_entry(struct ctl_table *entry,
 static struct ctl_table *
 sd_alloc_ctl_domain_table(struct sched_domain *sd)
 {
-	struct ctl_table *table = sd_alloc_ctl_entry(14);
+	ctl_table_no_const *table = sd_alloc_ctl_entry(14);
 
 	if (table == NULL)
 		return NULL;
@@ -301,9 +304,9 @@ sd_alloc_ctl_domain_table(struct sched_domain *sd)
 	return table;
 }
 
-static struct ctl_table *sd_alloc_ctl_cpu_table(int cpu)
+static ctl_table_no_const *sd_alloc_ctl_cpu_table(int cpu)
 {
-	struct ctl_table *entry, *table;
+	ctl_table_no_const *entry, *table;
 	struct sched_domain *sd;
 	int domain_num = 0, i;
 	char buf[32];
@@ -330,11 +333,13 @@ static struct ctl_table_header *sd_sysctl_header;
 void register_sched_domain_sysctl(void)
 {
 	int i, cpu_num = num_possible_cpus();
-	struct ctl_table *entry = sd_alloc_ctl_entry(cpu_num + 1);
+	ctl_table_no_const *entry = sd_alloc_ctl_entry(cpu_num + 1);
 	char buf[32];
 
 	WARN_ON(sd_ctl_dir[0].child);
+	pax_open_kernel();
 	sd_ctl_dir[0].child = entry;
+	pax_close_kernel();
 
 	if (entry == NULL)
 		return;
@@ -356,8 +361,12 @@ void unregister_sched_domain_sysctl(void)
 {
 	unregister_sysctl_table(sd_sysctl_header);
 	sd_sysctl_header = NULL;
-	if (sd_ctl_dir[0].child)
-		sd_free_ctl_entry(&sd_ctl_dir[0].child);
+	if (sd_ctl_dir[0].child) {
+		sd_free_ctl_entry(sd_ctl_dir[0].child);
+		pax_open_kernel();
+		sd_ctl_dir[0].child = NULL;
+		pax_close_kernel();
+	}
 }
 #endif /* CONFIG_SYSCTL */
 #endif /* CONFIG_SMP */
@@ -808,7 +817,11 @@ static int __init init_sched_debug_procfs(void)
 {
 	struct proc_dir_entry *pe;
 
+#ifdef CONFIG_GRKERNSEC_PROC_ADD
+	pe = proc_create("sched_debug", 0400, NULL, &sched_debug_fops);
+#else
 	pe = proc_create("sched_debug", 0444, NULL, &sched_debug_fops);
+#endif
 	if (!pe)
 		return -ENOMEM;
 	return 0;
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index e7dd0ec..bbbbe5e 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -8061,7 +8061,7 @@ static void nohz_idle_balance(struct rq *this_rq, enum cpu_idle_type idle) { }
  * run_rebalance_domains is triggered when needed from the scheduler tick.
  * Also triggered for nohz idle balancing (with nohz_balancing_kick set).
  */
-static void run_rebalance_domains(struct softirq_action *h)
+static __latent_entropy void run_rebalance_domains(void)
 {
 	struct rq *this_rq = this_rq();
 	enum cpu_idle_type idle = this_rq->idle_balance ?
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index ec4f538d..e3de404 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -362,8 +362,8 @@ static inline int has_pushable_tasks(struct rq *rq)
 	return !plist_head_empty(&rq->rt.pushable_tasks);
 }
 
-static DEFINE_PER_CPU(struct callback_head, rt_push_head);
-static DEFINE_PER_CPU(struct callback_head, rt_pull_head);
+static DEFINE_PER_CPU(struct balance_callback, rt_push_head);
+static DEFINE_PER_CPU(struct balance_callback, rt_pull_head);
 
 static void push_rt_tasks(struct rq *);
 static void pull_rt_task(struct rq *);
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index ec2e8d2..68a780e 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -632,7 +632,10 @@ struct rq {
 	unsigned long cpu_capacity;
 	unsigned long cpu_capacity_orig;
 
-	struct callback_head *balance_callback;
+	struct balance_callback {
+		struct balance_callback *next;
+		void (*func)(struct rq *rq);
+	} *balance_callback;
 
 	unsigned char idle_balance;
 	/* For active balancing */
@@ -778,7 +781,7 @@ extern int migrate_swap(struct task_struct *, struct task_struct *);
 
 static inline void
 queue_balance_callback(struct rq *rq,
-		       struct callback_head *head,
+		       struct balance_callback *head,
 		       void (*func)(struct rq *rq))
 {
 	lockdep_assert_held(&rq->lock);
@@ -786,7 +789,7 @@ queue_balance_callback(struct rq *rq,
 	if (unlikely(head->next))
 		return;
 
-	head->func = (void (*)(struct callback_head *))func;
+	head->func = func;
 	head->next = rq->balance_callback;
 	rq->balance_callback = head;
 }
@@ -1240,7 +1243,7 @@ struct sched_class {
 #ifdef CONFIG_FAIR_GROUP_SCHED
 	void (*task_move_group) (struct task_struct *p);
 #endif
-};
+} __do_const;
 
 static inline void put_prev_task(struct rq *rq, struct task_struct *prev)
 {
@@ -1310,7 +1313,7 @@ extern struct dl_bandwidth def_dl_bandwidth;
 extern void init_dl_bandwidth(struct dl_bandwidth *dl_b, u64 period, u64 runtime);
 extern void init_dl_task_timer(struct sched_dl_entity *dl_se);
 
-unsigned long to_ratio(u64 period, u64 runtime);
+unsigned long __attribute_const__ to_ratio(u64 period, u64 runtime);
 
 extern void init_entity_runnable_average(struct sched_entity *se);
 
diff --git a/kernel/signal.c b/kernel/signal.c
index aa9bf00..ec5101c 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -53,12 +53,12 @@ static struct kmem_cache *sigqueue_cachep;
 
 int print_fatal_signals __read_mostly;
 
-static void __user *sig_handler(struct task_struct *t, int sig)
+static __sighandler_t sig_handler(struct task_struct *t, int sig)
 {
 	return t->sighand->action[sig - 1].sa.sa_handler;
 }
 
-static int sig_handler_ignored(void __user *handler, int sig)
+static int sig_handler_ignored(__sighandler_t handler, int sig)
 {
 	/* Is it explicitly or implicitly ignored? */
 	return handler == SIG_IGN ||
@@ -67,7 +67,7 @@ static int sig_handler_ignored(void __user *handler, int sig)
 
 static int sig_task_ignored(struct task_struct *t, int sig, bool force)
 {
-	void __user *handler;
+	__sighandler_t handler;
 
 	handler = sig_handler(t, sig);
 
@@ -372,6 +372,9 @@ __sigqueue_alloc(int sig, struct task_struct *t, gfp_t flags, int override_rlimi
 	atomic_inc(&user->sigpending);
 	rcu_read_unlock();
 
+	if (!override_rlimit)
+		gr_learn_resource(t, RLIMIT_SIGPENDING, atomic_read(&user->sigpending), 1);
+
 	if (override_rlimit ||
 	    atomic_read(&user->sigpending) <=
 			task_rlimit(t, RLIMIT_SIGPENDING)) {
@@ -494,7 +497,7 @@ flush_signal_handlers(struct task_struct *t, int force_default)
 
 int unhandled_signal(struct task_struct *tsk, int sig)
 {
-	void __user *handler = tsk->sighand->action[sig-1].sa.sa_handler;
+	__sighandler_t handler = tsk->sighand->action[sig-1].sa.sa_handler;
 	if (is_global_init(tsk))
 		return 1;
 	if (handler != SIG_IGN && handler != SIG_DFL)
@@ -556,6 +559,7 @@ static int __dequeue_signal(struct sigpending *pending, sigset_t *mask,
  *
  * All callers have to hold the siglock.
  */
+int dequeue_signal(struct task_struct *tsk, sigset_t *mask, siginfo_t *info) __must_hold(&tsk->sighand->siglock);
 int dequeue_signal(struct task_struct *tsk, sigset_t *mask, siginfo_t *info)
 {
 	int signr;
@@ -742,6 +746,13 @@ static int check_kill_permission(int sig, struct siginfo *info,
 		}
 	}
 
+	/* allow glibc communication via tgkill to other threads in our
+	   thread group */
+	if ((info == SEND_SIG_NOINFO || info->si_code != SI_TKILL ||
+	     sig != (SIGRTMIN+1) || task_tgid_vnr(t) != info->si_pid)
+	    && gr_handle_signal(t, sig))
+		return -EPERM;
+
 	return security_task_kill(t, info, sig, 0);
 }
 
@@ -1125,7 +1136,7 @@ __group_send_sig_info(int sig, struct siginfo *info, struct task_struct *p)
 	return send_signal(sig, info, p, 1);
 }
 
-static int
+int
 specific_send_sig_info(int sig, struct siginfo *info, struct task_struct *t)
 {
 	return send_signal(sig, info, t, 0);
@@ -1162,6 +1173,7 @@ force_sig_info(int sig, struct siginfo *info, struct task_struct *t)
 	unsigned long int flags;
 	int ret, blocked, ignored;
 	struct k_sigaction *action;
+	int is_unhandled = 0;
 
 	spin_lock_irqsave(&t->sighand->siglock, flags);
 	action = &t->sighand->action[sig-1];
@@ -1176,9 +1188,18 @@ force_sig_info(int sig, struct siginfo *info, struct task_struct *t)
 	}
 	if (action->sa.sa_handler == SIG_DFL)
 		t->signal->flags &= ~SIGNAL_UNKILLABLE;
+	if (action->sa.sa_handler == SIG_IGN || action->sa.sa_handler == SIG_DFL)
+		is_unhandled = 1;
 	ret = specific_send_sig_info(sig, info, t);
 	spin_unlock_irqrestore(&t->sighand->siglock, flags);
 
+	/* only deal with unhandled signals, java etc trigger SIGSEGV during
+	   normal operation */
+	if (is_unhandled) {
+		gr_log_signal(sig, !is_si_special(info) ? info->si_addr : NULL, t);
+		gr_handle_crash(t, sig);
+	}
+
 	return ret;
 }
 
@@ -1259,8 +1280,11 @@ int group_send_sig_info(int sig, struct siginfo *info, struct task_struct *p)
 	ret = check_kill_permission(sig, info, p);
 	rcu_read_unlock();
 
-	if (!ret && sig)
+	if (!ret && sig) {
 		ret = do_send_sig_info(sig, info, p, true);
+		if (!ret)
+			gr_log_signal(sig, !is_si_special(info) ? info->si_addr : NULL, p);
+	}
 
 	return ret;
 }
@@ -1774,9 +1798,8 @@ static int sigkill_pending(struct task_struct *tsk)
  * If we actually decide not to stop at all because the tracer
  * is gone, we keep current->exit_code unless clear_code.
  */
+static void ptrace_stop(int exit_code, int why, int clear_code, siginfo_t *info) __must_hold(&current->sighand->siglock);
 static void ptrace_stop(int exit_code, int why, int clear_code, siginfo_t *info)
-	__releases(&current->sighand->siglock)
-	__acquires(&current->sighand->siglock)
 {
 	bool gstop_done = false;
 
@@ -1896,6 +1919,7 @@ static void ptrace_stop(int exit_code, int why, int clear_code, siginfo_t *info)
 	recalc_sigpending_tsk(current);
 }
 
+static void ptrace_do_notify(int signr, int exit_code, int why) __must_hold(&current->sighand->siglock);
 static void ptrace_do_notify(int signr, int exit_code, int why)
 {
 	siginfo_t info;
@@ -1943,8 +1967,8 @@ void ptrace_notify(int exit_code)
  * %false if group stop is already cancelled or ptrace trap is scheduled.
  * %true if participated in group stop.
  */
+static bool do_signal_stop(int signr) __releases(&current->sighand->siglock);
 static bool do_signal_stop(int signr)
-	__releases(&current->sighand->siglock)
 {
 	struct signal_struct *sig = current->signal;
 
@@ -1956,8 +1980,10 @@ static bool do_signal_stop(int signr)
 		WARN_ON_ONCE(signr & ~JOBCTL_STOP_SIGMASK);
 
 		if (!likely(current->jobctl & JOBCTL_STOP_DEQUEUED) ||
-		    unlikely(signal_group_exit(sig)))
+		    unlikely(signal_group_exit(sig))) {
+			__release(&current->sighand->siglock); // XXX sparse can't model conditional release
 			return false;
+		}
 		/*
 		 * There is no group stop already in progress.  We must
 		 * initiate one now.
@@ -2041,6 +2067,7 @@ static bool do_signal_stop(int signr)
 		 * Schedule it and let the caller deal with it.
 		 */
 		task_set_jobctl_pending(current, JOBCTL_TRAP_STOP);
+		__release(&current->sighand->siglock); // XXX sparse can't model conditional release
 		return false;
 	}
 }
@@ -2868,7 +2895,15 @@ do_send_specific(pid_t tgid, pid_t pid, int sig, struct siginfo *info)
 	int error = -ESRCH;
 
 	rcu_read_lock();
-	p = find_task_by_vpid(pid);
+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
+	/* allow glibc communication via tgkill to other threads in our
+	   thread group */
+	if (grsec_enable_chroot_findtask && info->si_code == SI_TKILL &&
+	    sig == (SIGRTMIN+1) && tgid == info->si_pid)	    
+		p = find_task_by_vpid_unrestricted(pid);
+	else
+#endif
+		p = find_task_by_vpid(pid);
 	if (p && (tgid <= 0 || task_tgid_vnr(p) == tgid)) {
 		error = check_kill_permission(sig, info, p);
 		/*
@@ -3197,8 +3232,8 @@ COMPAT_SYSCALL_DEFINE2(sigaltstack,
 	}
 	seg = get_fs();
 	set_fs(KERNEL_DS);
-	ret = do_sigaltstack((stack_t __force __user *) (uss_ptr ? &uss : NULL),
-			     (stack_t __force __user *) &uoss,
+	ret = do_sigaltstack((stack_t __force_user *) (uss_ptr ? &uss : NULL),
+			     (stack_t __force_user *) &uoss,
 			     compat_user_stack_pointer());
 	set_fs(seg);
 	if (ret >= 0 && uoss_ptr)  {
@@ -3482,7 +3517,7 @@ SYSCALL_DEFINE1(ssetmask, int, newmask)
 SYSCALL_DEFINE2(signal, int, sig, __sighandler_t, handler)
 {
 	struct k_sigaction new_sa, old_sa;
-	int ret;
+	long ret;
 
 	new_sa.sa.sa_handler = handler;
 	new_sa.sa.sa_flags = SA_ONESHOT | SA_NOMASK;
@@ -3490,7 +3525,7 @@ SYSCALL_DEFINE2(signal, int, sig, __sighandler_t, handler)
 
 	ret = do_sigaction(sig, &new_sa, &old_sa);
 
-	return ret ? ret : (unsigned long)old_sa.sa.sa_handler;
+	return ret ? ret : (long)old_sa.sa.sa_handler;
 }
 #endif /* __ARCH_WANT_SYS_SIGNAL */
 
diff --git a/kernel/smp.c b/kernel/smp.c
index 7416544..c25b366 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -588,7 +588,7 @@ void __init smp_init(void)
  * early_boot_irqs_disabled is set.  Use local_irq_save/restore() instead
  * of local_irq_disable/enable().
  */
-int on_each_cpu(void (*func) (void *info), void *info, int wait)
+int on_each_cpu(smp_call_func_t func, void *info, int wait)
 {
 	unsigned long flags;
 	int ret = 0;
diff --git a/kernel/smpboot.c b/kernel/smpboot.c
index 13bc43d..e7068a2 100644
--- a/kernel/smpboot.c
+++ b/kernel/smpboot.c
@@ -13,6 +13,7 @@
 #include <linux/percpu.h>
 #include <linux/kthread.h>
 #include <linux/smpboot.h>
+#include <asm/pgtable.h>
 
 #include "smpboot.h"
 
@@ -303,7 +304,7 @@ int smpboot_register_percpu_thread_cpumask(struct smp_hotplug_thread *plug_threa
 		if (cpumask_test_cpu(cpu, cpumask))
 			smpboot_unpark_thread(plug_thread, cpu);
 	}
-	list_add(&plug_thread->list, &hotplug_threads);
+	pax_list_add(&plug_thread->list, &hotplug_threads);
 out:
 	mutex_unlock(&smpboot_threads_lock);
 	put_online_cpus();
@@ -321,7 +322,7 @@ void smpboot_unregister_percpu_thread(struct smp_hotplug_thread *plug_thread)
 {
 	get_online_cpus();
 	mutex_lock(&smpboot_threads_lock);
-	list_del(&plug_thread->list);
+	pax_list_del(&plug_thread->list);
 	smpboot_destroy_threads(plug_thread);
 	mutex_unlock(&smpboot_threads_lock);
 	put_online_cpus();
@@ -361,7 +362,9 @@ int smpboot_update_cpumask_percpu_thread(struct smp_hotplug_thread *plug_thread,
 	for_each_cpu_and(cpu, tmp, cpu_online_mask)
 		smpboot_unpark_thread(plug_thread, cpu);
 
+	pax_open_kernel();
 	cpumask_copy(old, new);
+	pax_close_kernel();
 
 	mutex_unlock(&smpboot_threads_lock);
 	put_online_cpus();
diff --git a/kernel/softirq.c b/kernel/softirq.c
index 17caf4b..2e68ae7 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -53,7 +53,7 @@ irq_cpustat_t irq_stat[NR_CPUS] ____cacheline_aligned;
 EXPORT_SYMBOL(irq_stat);
 #endif
 
-static struct softirq_action softirq_vec[NR_SOFTIRQS] __cacheline_aligned_in_smp;
+static struct softirq_action softirq_vec[NR_SOFTIRQS] __read_only __aligned(PAGE_SIZE);
 
 DEFINE_PER_CPU(struct task_struct *, ksoftirqd);
 
@@ -270,7 +270,7 @@ restart:
 		kstat_incr_softirqs_this_cpu(vec_nr);
 
 		trace_softirq_entry(vec_nr);
-		h->action(h);
+		h->action();
 		trace_softirq_exit(vec_nr);
 		if (unlikely(prev_count != preempt_count())) {
 			pr_err("huh, entered softirq %u %s %p with preempt_count %08x, exited with %08x?\n",
@@ -430,7 +430,7 @@ void __raise_softirq_irqoff(unsigned int nr)
 	or_softirq_pending(1UL << nr);
 }
 
-void open_softirq(int nr, void (*action)(struct softirq_action *))
+void __init open_softirq(int nr, void (*action)(void))
 {
 	softirq_vec[nr].action = action;
 }
@@ -482,7 +482,7 @@ void __tasklet_hi_schedule_first(struct tasklet_struct *t)
 }
 EXPORT_SYMBOL(__tasklet_hi_schedule_first);
 
-static void tasklet_action(struct softirq_action *a)
+static __latent_entropy void tasklet_action(void)
 {
 	struct tasklet_struct *list;
 
@@ -518,7 +518,7 @@ static void tasklet_action(struct softirq_action *a)
 	}
 }
 
-static void tasklet_hi_action(struct softirq_action *a)
+static __latent_entropy void tasklet_hi_action(void)
 {
 	struct tasklet_struct *list;
 
@@ -744,7 +744,7 @@ static struct notifier_block cpu_nfb = {
 	.notifier_call = cpu_callback
 };
 
-static struct smp_hotplug_thread softirq_threads = {
+static struct smp_hotplug_thread softirq_threads __read_only = {
 	.store			= &ksoftirqd,
 	.thread_should_run	= ksoftirqd_should_run,
 	.thread_fn		= run_ksoftirqd,
diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c
index a467e6c..7743481 100644
--- a/kernel/stop_machine.c
+++ b/kernel/stop_machine.c
@@ -501,7 +501,7 @@ void stop_machine_unpark(int cpu)
 	kthread_unpark(stopper->thread);
 }
 
-static struct smp_hotplug_thread cpu_stop_threads = {
+static struct smp_hotplug_thread cpu_stop_threads __read_only = {
 	.store			= &cpu_stopper.thread,
 	.thread_should_run	= cpu_stop_should_run,
 	.thread_fn		= cpu_stopper_thread,
diff --git a/kernel/sys.c b/kernel/sys.c
index cf8ba54..196a680 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -160,6 +160,12 @@ static int set_one_prio(struct task_struct *p, int niceval, int error)
 		error = -EACCES;
 		goto out;
 	}
+
+	if (gr_handle_chroot_setpriority(p, niceval)) {
+		error = -EACCES;
+		goto out;
+	}
+
 	no_nice = security_task_setnice(p, niceval);
 	if (no_nice) {
 		error = no_nice;
@@ -366,6 +372,20 @@ SYSCALL_DEFINE2(setregid, gid_t, rgid, gid_t, egid)
 			goto error;
 	}
 
+	if (gr_check_group_change(new->gid, new->egid, INVALID_GID))
+		goto error;
+
+	if (!gid_eq(new->gid, old->gid)) {
+		/* make sure we generate a learn log for what will
+		   end up being a role transition after a full-learning
+		   policy is generated
+		   CAP_SETGID is required to perform a transition
+		   we may not log a CAP_SETGID check above, e.g.
+		   in the case where new rgid = old egid
+		*/
+		gr_learn_cap(current, new, CAP_SETGID, true);
+	}
+
 	if (rgid != (gid_t) -1 ||
 	    (egid != (gid_t) -1 && !gid_eq(kegid, old->gid)))
 		new->sgid = new->egid;
@@ -401,6 +421,10 @@ SYSCALL_DEFINE1(setgid, gid_t, gid)
 	old = current_cred();
 
 	retval = -EPERM;
+
+	if (gr_check_group_change(kgid, kgid, kgid))
+		goto error;
+
 	if (ns_capable(old->user_ns, CAP_SETGID))
 		new->gid = new->egid = new->sgid = new->fsgid = kgid;
 	else if (gid_eq(kgid, old->gid) || gid_eq(kgid, old->sgid))
@@ -418,7 +442,7 @@ error:
 /*
  * change the user struct in a credentials set to match the new UID
  */
-static int set_user(struct cred *new)
+int set_user(struct cred *new)
 {
 	struct user_struct *new_user;
 
@@ -498,7 +522,18 @@ SYSCALL_DEFINE2(setreuid, uid_t, ruid, uid_t, euid)
 			goto error;
 	}
 
+	if (gr_check_user_change(new->uid, new->euid, INVALID_UID))
+		goto error;
+
 	if (!uid_eq(new->uid, old->uid)) {
+		/* make sure we generate a learn log for what will
+		   end up being a role transition after a full-learning
+		   policy is generated
+		   CAP_SETUID is required to perform a transition
+		   we may not log a CAP_SETUID check above, e.g.
+		   in the case where new ruid = old euid
+		*/
+		gr_learn_cap(current, new, CAP_SETUID, true);
 		retval = set_user(new);
 		if (retval < 0)
 			goto error;
@@ -548,6 +583,12 @@ SYSCALL_DEFINE1(setuid, uid_t, uid)
 	old = current_cred();
 
 	retval = -EPERM;
+
+	if (gr_check_crash_uid(kuid))
+		goto error;
+	if (gr_check_user_change(kuid, kuid, kuid))
+		goto error;
+
 	if (ns_capable(old->user_ns, CAP_SETUID)) {
 		new->suid = new->uid = kuid;
 		if (!uid_eq(kuid, old->uid)) {
@@ -617,6 +658,9 @@ SYSCALL_DEFINE3(setresuid, uid_t, ruid, uid_t, euid, uid_t, suid)
 			goto error;
 	}
 
+	if (gr_check_user_change(kruid, keuid, INVALID_UID))
+		goto error;
+
 	if (ruid != (uid_t) -1) {
 		new->uid = kruid;
 		if (!uid_eq(kruid, old->uid)) {
@@ -701,6 +745,9 @@ SYSCALL_DEFINE3(setresgid, gid_t, rgid, gid_t, egid, gid_t, sgid)
 			goto error;
 	}
 
+	if (gr_check_group_change(krgid, kegid, INVALID_GID))
+		goto error;
+
 	if (rgid != (gid_t) -1)
 		new->gid = krgid;
 	if (egid != (gid_t) -1)
@@ -765,12 +812,16 @@ SYSCALL_DEFINE1(setfsuid, uid_t, uid)
 	    uid_eq(kuid, old->suid) || uid_eq(kuid, old->fsuid) ||
 	    ns_capable(old->user_ns, CAP_SETUID)) {
 		if (!uid_eq(kuid, old->fsuid)) {
+			if (gr_check_user_change(INVALID_UID, INVALID_UID, kuid))
+				goto error;
+
 			new->fsuid = kuid;
 			if (security_task_fix_setuid(new, old, LSM_SETID_FS) == 0)
 				goto change_okay;
 		}
 	}
 
+error:
 	abort_creds(new);
 	return old_fsuid;
 
@@ -803,12 +854,16 @@ SYSCALL_DEFINE1(setfsgid, gid_t, gid)
 	if (gid_eq(kgid, old->gid)  || gid_eq(kgid, old->egid)  ||
 	    gid_eq(kgid, old->sgid) || gid_eq(kgid, old->fsgid) ||
 	    ns_capable(old->user_ns, CAP_SETGID)) {
+		if (gr_check_group_change(INVALID_GID, INVALID_GID, kgid))
+			goto error;
+
 		if (!gid_eq(kgid, old->fsgid)) {
 			new->fsgid = kgid;
 			goto change_okay;
 		}
 	}
 
+error:
 	abort_creds(new);
 	return old_fsgid;
 
@@ -1187,19 +1242,19 @@ SYSCALL_DEFINE1(olduname, struct oldold_utsname __user *, name)
 		return -EFAULT;
 
 	down_read(&uts_sem);
-	error = __copy_to_user(&name->sysname, &utsname()->sysname,
+	error = __copy_to_user(name->sysname, &utsname()->sysname,
 			       __OLD_UTS_LEN);
 	error |= __put_user(0, name->sysname + __OLD_UTS_LEN);
-	error |= __copy_to_user(&name->nodename, &utsname()->nodename,
+	error |= __copy_to_user(name->nodename, &utsname()->nodename,
 				__OLD_UTS_LEN);
 	error |= __put_user(0, name->nodename + __OLD_UTS_LEN);
-	error |= __copy_to_user(&name->release, &utsname()->release,
+	error |= __copy_to_user(name->release, &utsname()->release,
 				__OLD_UTS_LEN);
 	error |= __put_user(0, name->release + __OLD_UTS_LEN);
-	error |= __copy_to_user(&name->version, &utsname()->version,
+	error |= __copy_to_user(name->version, &utsname()->version,
 				__OLD_UTS_LEN);
 	error |= __put_user(0, name->version + __OLD_UTS_LEN);
-	error |= __copy_to_user(&name->machine, &utsname()->machine,
+	error |= __copy_to_user(name->machine, &utsname()->machine,
 				__OLD_UTS_LEN);
 	error |= __put_user(0, name->machine + __OLD_UTS_LEN);
 	up_read(&uts_sem);
@@ -1400,6 +1455,13 @@ int do_prlimit(struct task_struct *tsk, unsigned int resource,
 			 */
 			new_rlim->rlim_cur = 1;
 		}
+		/* Handle the case where a fork and setuid occur and then RLIMIT_NPROC
+		   is changed to a lower value.  Since tasks can be created by the same
+		   user in between this limit change and an execve by this task, force
+		   a recheck only for this task by setting PF_NPROC_EXCEEDED
+		*/
+		if (resource == RLIMIT_NPROC && tsk->real_cred->user != INIT_USER)
+			tsk->flags |= PF_NPROC_EXCEEDED;
 	}
 	if (!retval) {
 		if (old_rlim)
diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c
index 2c5e3a8..301fb1a 100644
--- a/kernel/sys_ni.c
+++ b/kernel/sys_ni.c
@@ -6,12 +6,12 @@
 
 /*  we can't #include <linux/syscalls.h> here,
     but tell gcc to not warn with -Wmissing-prototypes  */
-asmlinkage long sys_ni_syscall(void);
+asmlinkage long sys_ni_syscall(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
 
 /*
  * Non-implemented system calls get redirected here.
  */
-asmlinkage long sys_ni_syscall(void)
+asmlinkage long sys_ni_syscall(unsigned long a, unsigned long b, unsigned long c, unsigned long d, unsigned long e, unsigned long f)
 {
 	return -ENOSYS;
 }
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 725587f..750f909 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -95,7 +95,6 @@
 #endif
 
 #if defined(CONFIG_SYSCTL)
-
 /* External variables not in a header file. */
 extern int suid_dumpable;
 #ifdef CONFIG_COREDUMP
@@ -112,23 +111,25 @@ extern int sysctl_nr_open_min, sysctl_nr_open_max;
 #ifndef CONFIG_MMU
 extern int sysctl_nr_trim_pages;
 #endif
+extern int sysctl_modify_ldt;
 
 /* Constants used for minimum and  maximum */
 #ifdef CONFIG_LOCKUP_DETECTOR
-static int sixty = 60;
+static int sixty __read_only = 60;
 #endif
 
-static int __maybe_unused neg_one = -1;
+static int __maybe_unused neg_one __read_only = -1;
 
-static int zero;
-static int __maybe_unused one = 1;
-static int __maybe_unused two = 2;
-static int __maybe_unused four = 4;
-static unsigned long one_ul = 1;
-static int one_hundred = 100;
-static int one_thousand = 1000;
+static int zero __read_only = 0;
+static int __maybe_unused one __read_only = 1;
+static int __maybe_unused two __read_only = 2;
+static int __maybe_unused three __read_only = 3;
+static int __maybe_unused four __read_only = 4;
+static unsigned long one_ul __read_only = 1;
+static int one_hundred __read_only = 100;
+static int one_thousand __read_only = 1000;
 #ifdef CONFIG_PRINTK
-static int ten_thousand = 10000;
+static int ten_thousand __read_only = 10000;
 #endif
 
 /* this is needed for the proc_doulongvec_minmax of vm_dirty_bytes */
@@ -182,10 +183,8 @@ static int proc_taint(struct ctl_table *table, int write,
 			       void __user *buffer, size_t *lenp, loff_t *ppos);
 #endif
 
-#ifdef CONFIG_PRINTK
-static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write,
+static int proc_dointvec_minmax_secure_sysadmin(struct ctl_table *table, int write,
 				void __user *buffer, size_t *lenp, loff_t *ppos);
-#endif
 
 static int proc_dointvec_minmax_coredump(struct ctl_table *table, int write,
 		void __user *buffer, size_t *lenp, loff_t *ppos);
@@ -216,6 +215,8 @@ static int sysrq_sysctl_handler(struct ctl_table *table, int write,
 
 #endif
 
+extern struct ctl_table grsecurity_table[];
+
 static struct ctl_table kern_table[];
 static struct ctl_table vm_table[];
 static struct ctl_table fs_table[];
@@ -230,6 +231,20 @@ extern struct ctl_table epoll_table[];
 int sysctl_legacy_va_layout;
 #endif
 
+#ifdef CONFIG_PAX_SOFTMODE
+static struct ctl_table pax_table[] = {
+	{
+		.procname	= "softmode",
+		.data		= &pax_softmode,
+		.maxlen		= sizeof(unsigned int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+
+	{ }
+};
+#endif
+
 /* The default sysctl tables: */
 
 static struct ctl_table sysctl_base_table[] = {
@@ -278,6 +293,22 @@ static int max_extfrag_threshold = 1000;
 #endif
 
 static struct ctl_table kern_table[] = {
+#if defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_ROFS)
+	{
+		.procname	= "grsecurity",
+		.mode		= 0500,
+		.child		= grsecurity_table,
+	},
+#endif
+
+#ifdef CONFIG_PAX_SOFTMODE
+	{
+		.procname	= "pax",
+		.mode		= 0500,
+		.child		= pax_table,
+	},
+#endif
+
 	{
 		.procname	= "sched_child_runs_first",
 		.data		= &sysctl_sched_child_runs_first,
@@ -641,7 +672,7 @@ static struct ctl_table kern_table[] = {
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
 		/* only handle a transition from default "0" to "1" */
-		.proc_handler	= proc_dointvec_minmax,
+		.proc_handler	= proc_dointvec_minmax_secure,
 		.extra1		= &one,
 		.extra2		= &one,
 	},
@@ -652,7 +683,7 @@ static struct ctl_table kern_table[] = {
 		.data		= &modprobe_path,
 		.maxlen		= KMOD_PATH_LEN,
 		.mode		= 0644,
-		.proc_handler	= proc_dostring,
+		.proc_handler	= proc_dostring_modpriv,
 	},
 	{
 		.procname	= "modules_disabled",
@@ -660,7 +691,7 @@ static struct ctl_table kern_table[] = {
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
 		/* only handle a transition from default "0" to "1" */
-		.proc_handler	= proc_dointvec_minmax,
+		.proc_handler	= proc_dointvec_minmax_secure,
 		.extra1		= &one,
 		.extra2		= &one,
 	},
@@ -815,20 +846,24 @@ static struct ctl_table kern_table[] = {
 		.data		= &dmesg_restrict,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= proc_dointvec_minmax_sysadmin,
+		.proc_handler	= proc_dointvec_minmax_secure_sysadmin,
 		.extra1		= &zero,
 		.extra2		= &one,
 	},
+#endif
 	{
 		.procname	= "kptr_restrict",
 		.data		= &kptr_restrict,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= proc_dointvec_minmax_sysadmin,
+		.proc_handler	= proc_dointvec_minmax_secure_sysadmin,
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+		.extra1		= &two,
+#else
 		.extra1		= &zero,
+#endif
 		.extra2		= &two,
 	},
-#endif
 	{
 		.procname	= "ngroups_max",
 		.data		= &ngroups_max,
@@ -993,6 +1028,17 @@ static struct ctl_table kern_table[] = {
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec,
 	},
+#ifdef CONFIG_MODIFY_LDT_SYSCALL
+	{
+		.procname	= "modify_ldt",
+		.data		= &sysctl_modify_ldt,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= proc_dointvec_minmax_secure_sysadmin,
+		.extra1		= &zero,
+		.extra2		= &one,
+	},
+#endif
 #endif
 #if defined(CONFIG_MMU)
 	{
@@ -1115,10 +1161,17 @@ static struct ctl_table kern_table[] = {
 	 */
 	{
 		.procname	= "perf_event_paranoid",
-		.data		= &sysctl_perf_event_paranoid,
-		.maxlen		= sizeof(sysctl_perf_event_paranoid),
+		.data		= &sysctl_perf_event_legitimately_concerned,
+		.maxlen		= sizeof(sysctl_perf_event_legitimately_concerned),
 		.mode		= 0644,
-		.proc_handler	= proc_dointvec,
+		/* go ahead, be a hero */
+		.proc_handler	= proc_dointvec_minmax_secure_sysadmin,
+		.extra1		= &neg_one,
+#ifdef CONFIG_GRKERNSEC_PERF_HARDEN
+		.extra2		= &three,
+#else
+		.extra2		= &two,
+#endif
 	},
 	{
 		.procname	= "perf_event_mlock_kb",
@@ -1430,6 +1483,13 @@ static struct ctl_table vm_table[] = {
 		.proc_handler	= proc_dointvec_minmax,
 		.extra1		= &zero,
 	},
+	{
+		.procname	= "heap_stack_gap",
+		.data		= &sysctl_heap_stack_gap,
+		.maxlen		= sizeof(sysctl_heap_stack_gap),
+		.mode		= 0644,
+		.proc_handler	= proc_doulongvec_minmax,
+	},
 #else
 	{
 		.procname	= "nr_trim_pages",
@@ -1942,6 +2002,16 @@ int proc_dostring(struct ctl_table *table, int write,
 			       (char __user *)buffer, lenp, ppos);
 }
 
+int proc_dostring_modpriv(struct ctl_table *table, int write,
+		  void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	if (write && !capable(CAP_SYS_MODULE))
+		return -EPERM;
+
+	return _proc_do_string(table->data, table->maxlen, write,
+			       buffer, lenp, ppos);
+}
+
 static size_t proc_skip_spaces(char **buf)
 {
 	size_t ret;
@@ -2047,6 +2117,8 @@ static int proc_put_long(void __user **buf, size_t *size, unsigned long val,
 	len = strlen(tmp);
 	if (len > *size)
 		len = *size;
+	if (len > sizeof(tmp))
+		len = sizeof(tmp);
 	if (copy_to_user(*buf, tmp, len))
 		return -EFAULT;
 	*size -= len;
@@ -2217,6 +2289,44 @@ int proc_dointvec(struct ctl_table *table, int write,
 		    	    NULL,NULL);
 }
 
+static int do_proc_dointvec_conv_secure(bool *negp, unsigned long *lvalp,
+				 int *valp,
+				 int write, void *data)
+{
+	if (write) {
+		if (*negp) {
+			if (*lvalp > (unsigned long) INT_MAX + 1)
+				return -EINVAL;
+			pax_open_kernel();
+			*valp = -*lvalp;
+			pax_close_kernel();
+		} else {
+			if (*lvalp > (unsigned long) INT_MAX)
+				return -EINVAL;
+			pax_open_kernel();
+			*valp = *lvalp;
+			pax_close_kernel();
+		}
+	} else {
+		int val = *valp;
+		if (val < 0) {
+			*negp = true;
+			*lvalp = -(unsigned long)val;
+		} else {
+			*negp = false;
+			*lvalp = (unsigned long)val;
+		}
+	}
+	return 0;
+}
+
+int proc_dointvec_secure(struct ctl_table *table, int write,
+		     void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+    return do_proc_dointvec(table,write,buffer,lenp,ppos,
+		    	    do_proc_dointvec_conv_secure,NULL);
+}
+
 /*
  * Taint values can only be increased
  * This means we can safely use a temporary.
@@ -2224,7 +2334,7 @@ int proc_dointvec(struct ctl_table *table, int write,
 static int proc_taint(struct ctl_table *table, int write,
 			       void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	struct ctl_table t;
+	ctl_table_no_const t;
 	unsigned long tmptaint = get_taint();
 	int err;
 
@@ -2252,16 +2362,14 @@ static int proc_taint(struct ctl_table *table, int write,
 	return err;
 }
 
-#ifdef CONFIG_PRINTK
-static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write,
+static int proc_dointvec_minmax_secure_sysadmin(struct ctl_table *table, int write,
 				void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	if (write && !capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
-	return proc_dointvec_minmax(table, write, buffer, lenp, ppos);
+	return proc_dointvec_minmax_secure(table, write, buffer, lenp, ppos);
 }
-#endif
 
 struct do_proc_dointvec_minmax_conv_param {
 	int *min;
@@ -2292,6 +2400,32 @@ static int do_proc_dointvec_minmax_conv(bool *negp, unsigned long *lvalp,
 	return 0;
 }
 
+static int do_proc_dointvec_minmax_conv_secure(bool *negp, unsigned long *lvalp,
+					int *valp,
+					int write, void *data)
+{
+	struct do_proc_dointvec_minmax_conv_param *param = data;
+	if (write) {
+		int val = *negp ? -*lvalp : *lvalp;
+		if ((param->min && *param->min > val) ||
+		    (param->max && *param->max < val))
+			return -EINVAL;
+		pax_open_kernel();
+		*valp = val;
+		pax_close_kernel();
+	} else {
+		int val = *valp;
+		if (val < 0) {
+			*negp = true;
+			*lvalp = -(unsigned long)val;
+		} else {
+			*negp = false;
+			*lvalp = (unsigned long)val;
+		}
+	}
+	return 0;
+}
+
 /**
  * proc_dointvec_minmax - read a vector of integers with min/max values
  * @table: the sysctl table
@@ -2319,6 +2453,17 @@ int proc_dointvec_minmax(struct ctl_table *table, int write,
 				do_proc_dointvec_minmax_conv, &param);
 }
 
+int proc_dointvec_minmax_secure(struct ctl_table *table, int write,
+		  void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	struct do_proc_dointvec_minmax_conv_param param = {
+		.min = (int *) table->extra1,
+		.max = (int *) table->extra2,
+	};
+	return do_proc_dointvec(table, write, buffer, lenp, ppos,
+				do_proc_dointvec_minmax_conv_secure, &param);
+}
+
 static void validate_coredump_safety(void)
 {
 #ifdef CONFIG_COREDUMP
@@ -2806,6 +2951,12 @@ int proc_dostring(struct ctl_table *table, int write,
 	return -ENOSYS;
 }
 
+int proc_dostring_modpriv(struct ctl_table *table, int write,
+		  void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return -ENOSYS;
+}
+
 int proc_dointvec(struct ctl_table *table, int write,
 		  void __user *buffer, size_t *lenp, loff_t *ppos)
 {
@@ -2862,5 +3013,6 @@ EXPORT_SYMBOL(proc_dointvec_minmax);
 EXPORT_SYMBOL(proc_dointvec_userhz_jiffies);
 EXPORT_SYMBOL(proc_dointvec_ms_jiffies);
 EXPORT_SYMBOL(proc_dostring);
+EXPORT_SYMBOL(proc_dostring_modpriv);
 EXPORT_SYMBOL(proc_doulongvec_minmax);
 EXPORT_SYMBOL(proc_doulongvec_ms_jiffies_minmax);
diff --git a/kernel/taskstats.c b/kernel/taskstats.c
index 21f82c2..c1984e5 100644
--- a/kernel/taskstats.c
+++ b/kernel/taskstats.c
@@ -28,9 +28,12 @@
 #include <linux/fs.h>
 #include <linux/file.h>
 #include <linux/pid_namespace.h>
+#include <linux/grsecurity.h>
 #include <net/genetlink.h>
 #include <linux/atomic.h>
 
+extern int gr_is_taskstats_denied(int pid);
+
 /*
  * Maximum length of a cpumask that can be specified in
  * the TASKSTATS_CMD_ATTR_REGISTER/DEREGISTER_CPUMASK attribute
@@ -567,6 +570,9 @@ err:
 
 static int taskstats_user_cmd(struct sk_buff *skb, struct genl_info *info)
 {
+	if (gr_is_taskstats_denied(current->pid))
+		return -EACCES;
+
 	if (info->attrs[TASKSTATS_CMD_ATTR_REGISTER_CPUMASK])
 		return cmd_attr_register_cpumask(info);
 	else if (info->attrs[TASKSTATS_CMD_ATTR_DEREGISTER_CPUMASK])
diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c
index e840ed86..4a303b7 100644
--- a/kernel/time/alarmtimer.c
+++ b/kernel/time/alarmtimer.c
@@ -523,7 +523,7 @@ static int alarm_clock_getres(const clockid_t which_clock, struct timespec *tp)
  *
  * Provides the underlying alarm base time.
  */
-static int alarm_clock_get(clockid_t which_clock, struct timespec *tp)
+static int alarm_clock_get(const clockid_t which_clock, struct timespec *tp)
 {
 	struct alarm_base *base = &alarm_bases[clock2alarm(which_clock)];
 
@@ -837,7 +837,7 @@ static int __init alarmtimer_init(void)
 	struct platform_device *pdev;
 	int error = 0;
 	int i;
-	struct k_clock alarm_clock = {
+	static struct k_clock alarm_clock = {
 		.clock_getres	= alarm_clock_getres,
 		.clock_get	= alarm_clock_get,
 		.timer_create	= alarm_timer_create,
diff --git a/kernel/time/posix-clock.c b/kernel/time/posix-clock.c
index 9cff0ab..0e69c94 100644
--- a/kernel/time/posix-clock.c
+++ b/kernel/time/posix-clock.c
@@ -273,7 +273,7 @@ static void put_clock_desc(struct posix_clock_desc *cd)
 	fput(cd->fp);
 }
 
-static int pc_clock_adjtime(clockid_t id, struct timex *tx)
+static int pc_clock_adjtime(const clockid_t id, struct timex *tx)
 {
 	struct posix_clock_desc cd;
 	int err;
@@ -297,7 +297,7 @@ out:
 	return err;
 }
 
-static int pc_clock_gettime(clockid_t id, struct timespec *ts)
+static int pc_clock_gettime(const clockid_t id, struct timespec *ts)
 {
 	struct posix_clock_desc cd;
 	int err;
@@ -316,7 +316,7 @@ static int pc_clock_gettime(clockid_t id, struct timespec *ts)
 	return err;
 }
 
-static int pc_clock_getres(clockid_t id, struct timespec *ts)
+static int pc_clock_getres(const clockid_t id, struct timespec *ts)
 {
 	struct posix_clock_desc cd;
 	int err;
@@ -335,7 +335,7 @@ static int pc_clock_getres(clockid_t id, struct timespec *ts)
 	return err;
 }
 
-static int pc_clock_settime(clockid_t id, const struct timespec *ts)
+static int pc_clock_settime(const clockid_t id, const struct timespec *ts)
 {
 	struct posix_clock_desc cd;
 	int err;
diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c
index 1cafba8..eccbd51 100644
--- a/kernel/time/posix-cpu-timers.c
+++ b/kernel/time/posix-cpu-timers.c
@@ -1467,14 +1467,14 @@ struct k_clock clock_posix_cpu = {
 
 static __init int init_posix_cpu_timers(void)
 {
-	struct k_clock process = {
+	static struct k_clock process = {
 		.clock_getres	= process_cpu_clock_getres,
 		.clock_get	= process_cpu_clock_get,
 		.timer_create	= process_cpu_timer_create,
 		.nsleep		= process_cpu_nsleep,
 		.nsleep_restart	= process_cpu_nsleep_restart,
 	};
-	struct k_clock thread = {
+	static struct k_clock thread = {
 		.clock_getres	= thread_cpu_clock_getres,
 		.clock_get	= thread_cpu_clock_get,
 		.timer_create	= thread_cpu_timer_create,
diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c
index f2826c3..7e6663a 100644
--- a/kernel/time/posix-timers.c
+++ b/kernel/time/posix-timers.c
@@ -43,6 +43,7 @@
 #include <linux/hash.h>
 #include <linux/posix-clock.h>
 #include <linux/posix-timers.h>
+#include <linux/grsecurity.h>
 #include <linux/syscalls.h>
 #include <linux/wait.h>
 #include <linux/workqueue.h>
@@ -124,7 +125,7 @@ static DEFINE_SPINLOCK(hash_lock);
  *	    which we beg off on and pass to do_sys_settimeofday().
  */
 
-static struct k_clock posix_clocks[MAX_CLOCKS];
+static struct k_clock *posix_clocks[MAX_CLOCKS];
 
 /*
  * These ones are defined below.
@@ -203,7 +204,7 @@ static inline void unlock_timer(struct k_itimer *timr, unsigned long flags)
 }
 
 /* Get clock_realtime */
-static int posix_clock_realtime_get(clockid_t which_clock, struct timespec *tp)
+static int posix_clock_realtime_get(const clockid_t which_clock, struct timespec *tp)
 {
 	ktime_get_real_ts(tp);
 	return 0;
@@ -225,7 +226,7 @@ static int posix_clock_realtime_adj(const clockid_t which_clock,
 /*
  * Get monotonic time for posix timers
  */
-static int posix_ktime_get_ts(clockid_t which_clock, struct timespec *tp)
+static int posix_ktime_get_ts(const clockid_t which_clock, struct timespec *tp)
 {
 	ktime_get_ts(tp);
 	return 0;
@@ -234,20 +235,20 @@ static int posix_ktime_get_ts(clockid_t which_clock, struct timespec *tp)
 /*
  * Get monotonic-raw time for posix timers
  */
-static int posix_get_monotonic_raw(clockid_t which_clock, struct timespec *tp)
+static int posix_get_monotonic_raw(const clockid_t which_clock, struct timespec *tp)
 {
 	getrawmonotonic(tp);
 	return 0;
 }
 
 
-static int posix_get_realtime_coarse(clockid_t which_clock, struct timespec *tp)
+static int posix_get_realtime_coarse(const clockid_t which_clock, struct timespec *tp)
 {
 	*tp = current_kernel_time();
 	return 0;
 }
 
-static int posix_get_monotonic_coarse(clockid_t which_clock,
+static int posix_get_monotonic_coarse(const clockid_t which_clock,
 						struct timespec *tp)
 {
 	*tp = get_monotonic_coarse();
@@ -266,7 +267,7 @@ static int posix_get_boottime(const clockid_t which_clock, struct timespec *tp)
 	return 0;
 }
 
-static int posix_get_tai(clockid_t which_clock, struct timespec *tp)
+static int posix_get_tai(const clockid_t which_clock, struct timespec *tp)
 {
 	timekeeping_clocktai(tp);
 	return 0;
@@ -284,7 +285,7 @@ static int posix_get_hrtimer_res(clockid_t which_clock, struct timespec *tp)
  */
 static __init int init_posix_timers(void)
 {
-	struct k_clock clock_realtime = {
+	static struct k_clock clock_realtime = {
 		.clock_getres	= posix_get_hrtimer_res,
 		.clock_get	= posix_clock_realtime_get,
 		.clock_set	= posix_clock_realtime_set,
@@ -296,7 +297,7 @@ static __init int init_posix_timers(void)
 		.timer_get	= common_timer_get,
 		.timer_del	= common_timer_del,
 	};
-	struct k_clock clock_monotonic = {
+	static struct k_clock clock_monotonic = {
 		.clock_getres	= posix_get_hrtimer_res,
 		.clock_get	= posix_ktime_get_ts,
 		.nsleep		= common_nsleep,
@@ -306,19 +307,19 @@ static __init int init_posix_timers(void)
 		.timer_get	= common_timer_get,
 		.timer_del	= common_timer_del,
 	};
-	struct k_clock clock_monotonic_raw = {
+	static struct k_clock clock_monotonic_raw = {
 		.clock_getres	= posix_get_hrtimer_res,
 		.clock_get	= posix_get_monotonic_raw,
 	};
-	struct k_clock clock_realtime_coarse = {
+	static struct k_clock clock_realtime_coarse = {
 		.clock_getres	= posix_get_coarse_res,
 		.clock_get	= posix_get_realtime_coarse,
 	};
-	struct k_clock clock_monotonic_coarse = {
+	static struct k_clock clock_monotonic_coarse = {
 		.clock_getres	= posix_get_coarse_res,
 		.clock_get	= posix_get_monotonic_coarse,
 	};
-	struct k_clock clock_tai = {
+	static struct k_clock clock_tai = {
 		.clock_getres	= posix_get_hrtimer_res,
 		.clock_get	= posix_get_tai,
 		.nsleep		= common_nsleep,
@@ -328,7 +329,7 @@ static __init int init_posix_timers(void)
 		.timer_get	= common_timer_get,
 		.timer_del	= common_timer_del,
 	};
-	struct k_clock clock_boottime = {
+	static struct k_clock clock_boottime = {
 		.clock_getres	= posix_get_hrtimer_res,
 		.clock_get	= posix_get_boottime,
 		.nsleep		= common_nsleep,
@@ -540,7 +541,7 @@ void posix_timers_register_clock(const clockid_t clock_id,
 		return;
 	}
 
-	posix_clocks[clock_id] = *new_clock;
+	posix_clocks[clock_id] = new_clock;
 }
 EXPORT_SYMBOL_GPL(posix_timers_register_clock);
 
@@ -586,9 +587,9 @@ static struct k_clock *clockid_to_kclock(const clockid_t id)
 		return (id & CLOCKFD_MASK) == CLOCKFD ?
 			&clock_posix_dynamic : &clock_posix_cpu;
 
-	if (id >= MAX_CLOCKS || !posix_clocks[id].clock_getres)
+	if (id >= MAX_CLOCKS || !posix_clocks[id] || !posix_clocks[id]->clock_getres)
 		return NULL;
-	return &posix_clocks[id];
+	return posix_clocks[id];
 }
 
 static int common_timer_create(struct k_itimer *new_timer)
@@ -606,7 +607,7 @@ SYSCALL_DEFINE3(timer_create, const clockid_t, which_clock,
 	struct k_clock *kc = clockid_to_kclock(which_clock);
 	struct k_itimer *new_timer;
 	int error, new_timer_id;
-	sigevent_t event;
+	sigevent_t event = { };
 	int it_id_set = IT_ID_NOT_SET;
 
 	if (!kc)
@@ -1021,6 +1022,13 @@ SYSCALL_DEFINE2(clock_settime, const clockid_t, which_clock,
 	if (copy_from_user(&new_tp, tp, sizeof (*tp)))
 		return -EFAULT;
 
+	/* only the CLOCK_REALTIME clock can be set, all other clocks
+	   have their clock_set fptr set to a nosettime dummy function
+	   CLOCK_REALTIME has a NULL clock_set fptr which causes it to
+	   call common_clock_set, which calls do_sys_settimeofday, which
+	   we hook
+	*/
+
 	return kc->clock_set(which_clock, &new_tp);
 }
 
diff --git a/kernel/time/time.c b/kernel/time/time.c
index be115b0..5d134df 100644
--- a/kernel/time/time.c
+++ b/kernel/time/time.c
@@ -177,6 +177,11 @@ int do_sys_settimeofday(const struct timespec *tv, const struct timezone *tz)
 		if (tz->tz_minuteswest > 15*60 || tz->tz_minuteswest < -15*60)
 			return -EINVAL;
 
+		/* we log in do_settimeofday called below, so don't log twice
+		*/
+		if (!tv)
+			gr_log_timechange();
+
 		sys_tz = *tz;
 		update_vsyscall_tz();
 		if (firsttime) {
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 479d25c..7c25647 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -15,6 +15,7 @@
 #include <linux/init.h>
 #include <linux/mm.h>
 #include <linux/sched.h>
+#include <linux/grsecurity.h>
 #include <linux/syscore_ops.h>
 #include <linux/clocksource.h>
 #include <linux/jiffies.h>
@@ -1164,6 +1165,8 @@ int do_settimeofday64(const struct timespec64 *ts)
 	if (!timespec64_valid_strict(ts))
 		return -EINVAL;
 
+	gr_log_timechange();
+
 	raw_spin_lock_irqsave(&timekeeper_lock, flags);
 	write_seqcount_begin(&tk_core.seq);
 
diff --git a/kernel/time/timer.c b/kernel/time/timer.c
index 73164c3..094396f 100644
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -1429,7 +1429,7 @@ void update_process_times(int user_tick)
 /*
  * This function runs timers and the timer-tq in bottom half context.
  */
-static void run_timer_softirq(struct softirq_action *h)
+static __latent_entropy void run_timer_softirq(void)
 {
 	struct tvec_base *base = this_cpu_ptr(&tvec_bases);
 
diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c
index ba7d8b2..aa301b0 100644
--- a/kernel/time/timer_list.c
+++ b/kernel/time/timer_list.c
@@ -50,12 +50,16 @@ static void SEQ_printf(struct seq_file *m, const char *fmt, ...)
 
 static void print_name_offset(struct seq_file *m, void *sym)
 {
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+	SEQ_printf(m, "<%p>", NULL);
+#else
 	char symname[KSYM_NAME_LEN];
 
 	if (lookup_symbol_name((unsigned long)sym, symname) < 0)
 		SEQ_printf(m, "<%pK>", sym);
 	else
 		SEQ_printf(m, "%s", symname);
+#endif
 }
 
 static void
@@ -124,11 +128,14 @@ next_one:
 static void
 print_base(struct seq_file *m, struct hrtimer_clock_base *base, u64 now)
 {
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+	SEQ_printf(m, "  .base:       %p\n", NULL);
+#else
 	SEQ_printf(m, "  .base:       %pK\n", base);
+#endif
 	SEQ_printf(m, "  .index:      %d\n", base->index);
 
 	SEQ_printf(m, "  .resolution: %u nsecs\n", (unsigned) hrtimer_resolution);
-
 	SEQ_printf(m,   "  .get_time:   ");
 	print_name_offset(m, base->get_time);
 	SEQ_printf(m,   "\n");
@@ -393,7 +400,11 @@ static int __init init_timer_list_procfs(void)
 {
 	struct proc_dir_entry *pe;
 
+#ifdef CONFIG_GRKERNSEC_PROC_ADD
+	pe = proc_create("timer_list", 0400, NULL, &timer_list_fops);
+#else
 	pe = proc_create("timer_list", 0444, NULL, &timer_list_fops);
+#endif
 	if (!pe)
 		return -ENOMEM;
 	return 0;
diff --git a/kernel/time/timer_stats.c b/kernel/time/timer_stats.c
index 1adecb4..b4fb631 100644
--- a/kernel/time/timer_stats.c
+++ b/kernel/time/timer_stats.c
@@ -116,7 +116,7 @@ static ktime_t time_start, time_stop;
 static unsigned long nr_entries;
 static struct entry entries[MAX_ENTRIES];
 
-static atomic_t overflow_count;
+static atomic_unchecked_t overflow_count;
 
 /*
  * The entries are in a hash-table, for fast lookup:
@@ -140,7 +140,7 @@ static void reset_entries(void)
 	nr_entries = 0;
 	memset(entries, 0, sizeof(entries));
 	memset(tstat_hash_table, 0, sizeof(tstat_hash_table));
-	atomic_set(&overflow_count, 0);
+	atomic_set_unchecked(&overflow_count, 0);
 }
 
 static struct entry *alloc_entry(void)
@@ -261,7 +261,7 @@ void timer_stats_update_stats(void *timer, pid_t pid, void *startf,
 	if (likely(entry))
 		entry->count++;
 	else
-		atomic_inc(&overflow_count);
+		atomic_inc_unchecked(&overflow_count);
 
  out_unlock:
 	raw_spin_unlock_irqrestore(lock, flags);
@@ -269,12 +269,16 @@ void timer_stats_update_stats(void *timer, pid_t pid, void *startf,
 
 static void print_name_offset(struct seq_file *m, unsigned long addr)
 {
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+	seq_printf(m, "<%p>", NULL);
+#else
 	char symname[KSYM_NAME_LEN];
 
 	if (lookup_symbol_name(addr, symname) < 0)
-		seq_printf(m, "<%p>", (void *)addr);
+		seq_printf(m, "<%pK>", (void *)addr);
 	else
 		seq_printf(m, "%s", symname);
+#endif
 }
 
 static int tstats_show(struct seq_file *m, void *v)
@@ -300,8 +304,8 @@ static int tstats_show(struct seq_file *m, void *v)
 
 	seq_puts(m, "Timer Stats Version: v0.3\n");
 	seq_printf(m, "Sample period: %ld.%03ld s\n", period.tv_sec, ms);
-	if (atomic_read(&overflow_count))
-		seq_printf(m, "Overflow: %d entries\n", atomic_read(&overflow_count));
+	if (atomic_read_unchecked(&overflow_count))
+		seq_printf(m, "Overflow: %d entries\n", atomic_read_unchecked(&overflow_count));
 	seq_printf(m, "Collection: %s\n", timer_stats_active ? "active" : "inactive");
 
 	for (i = 0; i < nr_entries; i++) {
@@ -417,7 +421,11 @@ static int __init init_tstats_procfs(void)
 {
 	struct proc_dir_entry *pe;
 
+#ifdef CONFIG_GRKERNSEC_PROC_ADD
+	pe = proc_create("timer_stats", 0600, NULL, &tstats_fops);
+#else
 	pe = proc_create("timer_stats", 0644, NULL, &tstats_fops);
+#endif
 	if (!pe)
 		return -ENOMEM;
 	return 0;
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index e45db6b..6527679 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -107,6 +107,7 @@ config TRACING
 config GENERIC_TRACER
 	bool
 	select TRACING
+	depends on !GRKERNSEC_KMEM
 
 #
 # Minimum requirements an architecture has to meet for us to
@@ -120,6 +121,7 @@ config TRACING_SUPPORT
 	# irqflags tracing for your architecture.
 	depends on TRACE_IRQFLAGS_SUPPORT || PPC32
 	depends on STACKTRACE_SUPPORT
+	depends on !GRKERNSEC_KMEM
 	default y
 
 if TRACING_SUPPORT
@@ -225,6 +227,7 @@ config ENABLE_DEFAULT_TRACERS
 	bool "Trace process context switches and events"
 	depends on !GENERIC_TRACER
 	select TRACING
+	depends on !GRKERNSEC_KMEM
 	help
 	  This tracer hooks to various trace points in the kernel,
 	  allowing the user to pick and choose which trace point they
@@ -378,6 +381,7 @@ config BLK_DEV_IO_TRACE
 	depends on BLOCK
 	select RELAY
 	select DEBUG_FS
+	depends on !GRKERNSEC_KMEM
 	select TRACEPOINTS
 	select GENERIC_TRACER
 	select STACKTRACE
@@ -402,6 +406,7 @@ config KPROBE_EVENT
 	depends on HAVE_REGS_AND_STACK_ACCESS_API
 	bool "Enable kprobes-based dynamic events"
 	select TRACING
+	depends on !GRKERNSEC_KMEM
 	select PROBE_EVENTS
 	default y
 	help
@@ -423,6 +428,7 @@ config UPROBE_EVENT
 	select UPROBES
 	select PROBE_EVENTS
 	select TRACING
+	depends on !GRKERNSEC_KMEM
 	default n
 	help
 	  This allows the user to add tracing events on top of userspace
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index f94e7a2..75c8035 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -328,7 +328,7 @@ static ssize_t blk_dropped_read(struct file *filp, char __user *buffer,
 	struct blk_trace *bt = filp->private_data;
 	char buf[16];
 
-	snprintf(buf, sizeof(buf), "%u\n", atomic_read(&bt->dropped));
+	snprintf(buf, sizeof(buf), "%u\n", atomic_read_unchecked(&bt->dropped));
 
 	return simple_read_from_buffer(buffer, count, ppos, buf, strlen(buf));
 }
@@ -380,7 +380,7 @@ static int blk_subbuf_start_callback(struct rchan_buf *buf, void *subbuf,
 		return 1;
 
 	bt = buf->chan->private_data;
-	atomic_inc(&bt->dropped);
+	atomic_inc_unchecked(&bt->dropped);
 	return 0;
 }
 
@@ -479,7 +479,7 @@ int do_blk_trace_setup(struct request_queue *q, char *name, dev_t dev,
 
 	bt->dir = dir;
 	bt->dev = dev;
-	atomic_set(&bt->dropped, 0);
+	atomic_set_unchecked(&bt->dropped, 0);
 	INIT_LIST_HEAD(&bt->running_list);
 
 	ret = -EIO;
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index b1870fb..02fbaa7 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -120,8 +120,9 @@ static void ftrace_ops_list_func(unsigned long ip, unsigned long parent_ip,
 				 struct ftrace_ops *op, struct pt_regs *regs);
 #else
 /* See comment below, where ftrace_ops_list_func is defined */
-static void ftrace_ops_no_ops(unsigned long ip, unsigned long parent_ip);
-#define ftrace_ops_list_func ((ftrace_func_t)ftrace_ops_no_ops)
+static void ftrace_ops_no_ops(unsigned long ip, unsigned long parent_ip,
+				 struct ftrace_ops *op, struct pt_regs *regs);
+#define ftrace_ops_list_func (ftrace_ops_no_ops)
 #endif
 
 /*
@@ -2467,13 +2468,18 @@ ftrace_code_disable(struct module *mod, struct dyn_ftrace *rec)
 	if (unlikely(ftrace_disabled))
 		return 0;
 
+	ret = ftrace_arch_code_modify_prepare();
+	FTRACE_WARN_ON(ret);
+	if (ret)
+		return 0;
+
 	ret = ftrace_make_nop(mod, rec, MCOUNT_ADDR);
+	FTRACE_WARN_ON(ftrace_arch_code_modify_post_process());
 	if (ret) {
 		ftrace_bug_type = FTRACE_BUG_INIT;
 		ftrace_bug(ret, rec);
-		return 0;
 	}
-	return 1;
+	return ret ? 0 : 1;
 }
 
 /*
@@ -4825,8 +4831,10 @@ static int ftrace_process_locs(struct module *mod,
 	if (!count)
 		return 0;
 
+	pax_open_kernel();
 	sort(start, count, sizeof(*start),
 	     ftrace_cmp_ips, NULL);
+	pax_close_kernel();
 
 	start_pg = ftrace_allocate_pages(count);
 	if (!start_pg)
@@ -5242,7 +5250,8 @@ static void ftrace_ops_list_func(unsigned long ip, unsigned long parent_ip,
 	__ftrace_ops_list_func(ip, parent_ip, NULL, regs);
 }
 #else
-static void ftrace_ops_no_ops(unsigned long ip, unsigned long parent_ip)
+static void ftrace_ops_no_ops(unsigned long ip, unsigned long parent_ip,
+				 struct ftrace_ops *op, struct pt_regs *regs)
 {
 	__ftrace_ops_list_func(ip, parent_ip, NULL, NULL);
 }
@@ -5703,8 +5712,12 @@ int ftrace_graph_entry_stub(struct ftrace_graph_ent *trace)
 }
 
 /* The callbacks that hook a function */
-trace_func_graph_ret_t ftrace_graph_return =
-			(trace_func_graph_ret_t)ftrace_stub;
+static void ftrace_graph_return_stub(struct ftrace_graph_ret *trace)
+{
+	ftrace_stub(0, 0, NULL, NULL);
+}
+
+trace_func_graph_ret_t ftrace_graph_return = ftrace_graph_return_stub;
 trace_func_graph_ent_t ftrace_graph_entry = ftrace_graph_entry_stub;
 static trace_func_graph_ent_t __ftrace_graph_entry = ftrace_graph_entry_stub;
 
@@ -5738,7 +5751,7 @@ static int alloc_retstack_tasklist(struct ftrace_ret_stack **ret_stack_list)
 
 		if (t->ret_stack == NULL) {
 			atomic_set(&t->tracing_graph_pause, 0);
-			atomic_set(&t->trace_overrun, 0);
+			atomic_set_unchecked(&t->trace_overrun, 0);
 			t->curr_ret_stack = -1;
 			/* Make sure the tasks see the -1 first: */
 			smp_wmb();
@@ -5933,7 +5946,7 @@ void unregister_ftrace_graph(void)
 		goto out;
 
 	ftrace_graph_active--;
-	ftrace_graph_return = (trace_func_graph_ret_t)ftrace_stub;
+	ftrace_graph_return = ftrace_graph_return_stub;
 	ftrace_graph_entry = ftrace_graph_entry_stub;
 	__ftrace_graph_entry = ftrace_graph_entry_stub;
 	ftrace_shutdown(&graph_ops, FTRACE_STOP_FUNC_RET);
@@ -5961,7 +5974,7 @@ static void
 graph_init_task(struct task_struct *t, struct ftrace_ret_stack *ret_stack)
 {
 	atomic_set(&t->tracing_graph_pause, 0);
-	atomic_set(&t->trace_overrun, 0);
+	atomic_set_unchecked(&t->trace_overrun, 0);
 	t->ftrace_timestamp = 0;
 	/* make curr_ret_stack visible before we add the ret_stack */
 	smp_wmb();
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 9c14373..5ddd763 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -296,9 +296,9 @@ struct buffer_data_page {
  */
 struct buffer_page {
 	struct list_head list;		/* list of buffer pages */
-	local_t		 write;		/* index for next write */
+	local_unchecked_t	 write;		/* index for next write */
 	unsigned	 read;		/* index for next read */
-	local_t		 entries;	/* entries on this page */
+	local_unchecked_t	 entries;	/* entries on this page */
 	unsigned long	 real_end;	/* real end of data */
 	struct buffer_data_page *page;	/* Actual data page */
 };
@@ -448,11 +448,11 @@ struct ring_buffer_per_cpu {
 	unsigned long			last_overrun;
 	local_t				entries_bytes;
 	local_t				entries;
-	local_t				overrun;
-	local_t				commit_overrun;
-	local_t				dropped_events;
+	local_unchecked_t		overrun;
+	local_unchecked_t		commit_overrun;
+	local_unchecked_t		dropped_events;
 	local_t				committing;
-	local_t				commits;
+	local_unchecked_t		commits;
 	unsigned long			read;
 	unsigned long			read_bytes;
 	u64				write_stamp;
@@ -1018,8 +1018,8 @@ static void rb_tail_page_update(struct ring_buffer_per_cpu *cpu_buffer,
 	 *
 	 * We add a counter to the write field to denote this.
 	 */
-	old_write = local_add_return(RB_WRITE_INTCNT, &next_page->write);
-	old_entries = local_add_return(RB_WRITE_INTCNT, &next_page->entries);
+	old_write = local_add_return_unchecked(RB_WRITE_INTCNT, &next_page->write);
+	old_entries = local_add_return_unchecked(RB_WRITE_INTCNT, &next_page->entries);
 
 	/*
 	 * Just make sure we have seen our old_write and synchronize
@@ -1047,8 +1047,8 @@ static void rb_tail_page_update(struct ring_buffer_per_cpu *cpu_buffer,
 		 * cmpxchg to only update if an interrupt did not already
 		 * do it for us. If the cmpxchg fails, we don't care.
 		 */
-		(void)local_cmpxchg(&next_page->write, old_write, val);
-		(void)local_cmpxchg(&next_page->entries, old_entries, eval);
+		(void)local_cmpxchg_unchecked(&next_page->write, old_write, val);
+		(void)local_cmpxchg_unchecked(&next_page->entries, old_entries, eval);
 
 		/*
 		 * No need to worry about races with clearing out the commit.
@@ -1412,12 +1412,12 @@ static void rb_reset_cpu(struct ring_buffer_per_cpu *cpu_buffer);
 
 static inline unsigned long rb_page_entries(struct buffer_page *bpage)
 {
-	return local_read(&bpage->entries) & RB_WRITE_MASK;
+	return local_read_unchecked(&bpage->entries) & RB_WRITE_MASK;
 }
 
 static inline unsigned long rb_page_write(struct buffer_page *bpage)
 {
-	return local_read(&bpage->write) & RB_WRITE_MASK;
+	return local_read_unchecked(&bpage->write) & RB_WRITE_MASK;
 }
 
 static int
@@ -1512,7 +1512,7 @@ rb_remove_pages(struct ring_buffer_per_cpu *cpu_buffer, unsigned long nr_pages)
 			 * bytes consumed in ring buffer from here.
 			 * Increment overrun to account for the lost events.
 			 */
-			local_add(page_entries, &cpu_buffer->overrun);
+			local_add_unchecked(page_entries, &cpu_buffer->overrun);
 			local_sub(BUF_PAGE_SIZE, &cpu_buffer->entries_bytes);
 		}
 
@@ -1942,7 +1942,7 @@ rb_handle_head_page(struct ring_buffer_per_cpu *cpu_buffer,
 		 * it is our responsibility to update
 		 * the counters.
 		 */
-		local_add(entries, &cpu_buffer->overrun);
+		local_add_unchecked(entries, &cpu_buffer->overrun);
 		local_sub(BUF_PAGE_SIZE, &cpu_buffer->entries_bytes);
 
 		/*
@@ -2079,7 +2079,7 @@ rb_reset_tail(struct ring_buffer_per_cpu *cpu_buffer,
 		if (tail == BUF_PAGE_SIZE)
 			tail_page->real_end = 0;
 
-		local_sub(length, &tail_page->write);
+		local_sub_unchecked(length, &tail_page->write);
 		return;
 	}
 
@@ -2114,7 +2114,7 @@ rb_reset_tail(struct ring_buffer_per_cpu *cpu_buffer,
 		rb_event_set_padding(event);
 
 		/* Set the write back to the previous setting */
-		local_sub(length, &tail_page->write);
+		local_sub_unchecked(length, &tail_page->write);
 		return;
 	}
 
@@ -2126,7 +2126,7 @@ rb_reset_tail(struct ring_buffer_per_cpu *cpu_buffer,
 
 	/* Set write to end of buffer */
 	length = (tail + length) - BUF_PAGE_SIZE;
-	local_sub(length, &tail_page->write);
+	local_sub_unchecked(length, &tail_page->write);
 }
 
 static inline void rb_end_commit(struct ring_buffer_per_cpu *cpu_buffer);
@@ -2154,7 +2154,7 @@ rb_move_tail(struct ring_buffer_per_cpu *cpu_buffer,
 	 * about it.
 	 */
 	if (unlikely(next_page == commit_page)) {
-		local_inc(&cpu_buffer->commit_overrun);
+		local_inc_unchecked(&cpu_buffer->commit_overrun);
 		goto out_reset;
 	}
 
@@ -2184,7 +2184,7 @@ rb_move_tail(struct ring_buffer_per_cpu *cpu_buffer,
 			 * this is easy, just stop here.
 			 */
 			if (!(buffer->flags & RB_FL_OVERWRITE)) {
-				local_inc(&cpu_buffer->dropped_events);
+				local_inc_unchecked(&cpu_buffer->dropped_events);
 				goto out_reset;
 			}
 
@@ -2210,7 +2210,7 @@ rb_move_tail(struct ring_buffer_per_cpu *cpu_buffer,
 				      cpu_buffer->tail_page) &&
 				     (cpu_buffer->commit_page ==
 				      cpu_buffer->reader_page))) {
-				local_inc(&cpu_buffer->commit_overrun);
+				local_inc_unchecked(&cpu_buffer->commit_overrun);
 				goto out_reset;
 			}
 		}
@@ -2358,7 +2358,7 @@ rb_try_to_discard(struct ring_buffer_per_cpu *cpu_buffer,
 
 	if (bpage->page == (void *)addr && rb_page_write(bpage) == old_index) {
 		unsigned long write_mask =
-			local_read(&bpage->write) & ~RB_WRITE_MASK;
+			local_read_unchecked(&bpage->write) & ~RB_WRITE_MASK;
 		unsigned long event_length = rb_event_length(event);
 		/*
 		 * This is on the tail page. It is possible that
@@ -2368,7 +2368,7 @@ rb_try_to_discard(struct ring_buffer_per_cpu *cpu_buffer,
 		 */
 		old_index += write_mask;
 		new_index += write_mask;
-		index = local_cmpxchg(&bpage->write, old_index, new_index);
+		index = local_cmpxchg_unchecked(&bpage->write, old_index, new_index);
 		if (index == old_index) {
 			/* update counters */
 			local_sub(event_length, &cpu_buffer->entries_bytes);
@@ -2383,7 +2383,7 @@ rb_try_to_discard(struct ring_buffer_per_cpu *cpu_buffer,
 static void rb_start_commit(struct ring_buffer_per_cpu *cpu_buffer)
 {
 	local_inc(&cpu_buffer->committing);
-	local_inc(&cpu_buffer->commits);
+	local_inc_unchecked(&cpu_buffer->commits);
 }
 
 static void
@@ -2450,7 +2450,7 @@ static inline void rb_end_commit(struct ring_buffer_per_cpu *cpu_buffer)
 		return;
 
  again:
-	commits = local_read(&cpu_buffer->commits);
+	commits = local_read_unchecked(&cpu_buffer->commits);
 	/* synchronize with interrupts */
 	barrier();
 	if (local_read(&cpu_buffer->committing) == 1)
@@ -2466,7 +2466,7 @@ static inline void rb_end_commit(struct ring_buffer_per_cpu *cpu_buffer)
 	 * updating of the commit page and the clearing of the
 	 * committing counter.
 	 */
-	if (unlikely(local_read(&cpu_buffer->commits) != commits) &&
+	if (unlikely(local_read_unchecked(&cpu_buffer->commits) != commits) &&
 	    !local_read(&cpu_buffer->committing)) {
 		local_inc(&cpu_buffer->committing);
 		goto again;
@@ -2695,7 +2695,7 @@ __rb_reserve_next(struct ring_buffer_per_cpu *cpu_buffer,
 
 	/* Don't let the compiler play games with cpu_buffer->tail_page */
 	tail_page = info->tail_page = READ_ONCE(cpu_buffer->tail_page);
-	write = local_add_return(info->length, &tail_page->write);
+	write = local_add_return_unchecked(info->length, &tail_page->write);
 
 	/* set write to only the index of the write */
 	write &= RB_WRITE_MASK;
@@ -2718,7 +2718,7 @@ __rb_reserve_next(struct ring_buffer_per_cpu *cpu_buffer,
 	kmemcheck_annotate_bitfield(event, bitfield);
 	rb_update_event(cpu_buffer, event, info);
 
-	local_inc(&tail_page->entries);
+	local_inc_unchecked(&tail_page->entries);
 
 	/*
 	 * If this is the first commit on the page, then update
@@ -2755,7 +2755,7 @@ rb_reserve_next_event(struct ring_buffer *buffer,
 	barrier();
 	if (unlikely(ACCESS_ONCE(cpu_buffer->buffer) != buffer)) {
 		local_dec(&cpu_buffer->committing);
-		local_dec(&cpu_buffer->commits);
+		local_dec_unchecked(&cpu_buffer->commits);
 		return NULL;
 	}
 #endif
@@ -2884,7 +2884,7 @@ rb_decrement_entry(struct ring_buffer_per_cpu *cpu_buffer,
 
 	/* Do the likely case first */
 	if (likely(bpage->page == (void *)addr)) {
-		local_dec(&bpage->entries);
+		local_dec_unchecked(&bpage->entries);
 		return;
 	}
 
@@ -2896,7 +2896,7 @@ rb_decrement_entry(struct ring_buffer_per_cpu *cpu_buffer,
 	start = bpage;
 	do {
 		if (bpage->page == (void *)addr) {
-			local_dec(&bpage->entries);
+			local_dec_unchecked(&bpage->entries);
 			return;
 		}
 		rb_inc_page(cpu_buffer, &bpage);
@@ -3184,7 +3184,7 @@ static inline unsigned long
 rb_num_of_entries(struct ring_buffer_per_cpu *cpu_buffer)
 {
 	return local_read(&cpu_buffer->entries) -
-		(local_read(&cpu_buffer->overrun) + cpu_buffer->read);
+		(local_read_unchecked(&cpu_buffer->overrun) + cpu_buffer->read);
 }
 
 /**
@@ -3273,7 +3273,7 @@ unsigned long ring_buffer_overrun_cpu(struct ring_buffer *buffer, int cpu)
 		return 0;
 
 	cpu_buffer = buffer->buffers[cpu];
-	ret = local_read(&cpu_buffer->overrun);
+	ret = local_read_unchecked(&cpu_buffer->overrun);
 
 	return ret;
 }
@@ -3296,7 +3296,7 @@ ring_buffer_commit_overrun_cpu(struct ring_buffer *buffer, int cpu)
 		return 0;
 
 	cpu_buffer = buffer->buffers[cpu];
-	ret = local_read(&cpu_buffer->commit_overrun);
+	ret = local_read_unchecked(&cpu_buffer->commit_overrun);
 
 	return ret;
 }
@@ -3318,7 +3318,7 @@ ring_buffer_dropped_events_cpu(struct ring_buffer *buffer, int cpu)
 		return 0;
 
 	cpu_buffer = buffer->buffers[cpu];
-	ret = local_read(&cpu_buffer->dropped_events);
+	ret = local_read_unchecked(&cpu_buffer->dropped_events);
 
 	return ret;
 }
@@ -3381,7 +3381,7 @@ unsigned long ring_buffer_overruns(struct ring_buffer *buffer)
 	/* if you care about this being correct, lock the buffer */
 	for_each_buffer_cpu(buffer, cpu) {
 		cpu_buffer = buffer->buffers[cpu];
-		overruns += local_read(&cpu_buffer->overrun);
+		overruns += local_read_unchecked(&cpu_buffer->overrun);
 	}
 
 	return overruns;
@@ -3552,8 +3552,8 @@ rb_get_reader_page(struct ring_buffer_per_cpu *cpu_buffer)
 	/*
 	 * Reset the reader page to size zero.
 	 */
-	local_set(&cpu_buffer->reader_page->write, 0);
-	local_set(&cpu_buffer->reader_page->entries, 0);
+	local_set_unchecked(&cpu_buffer->reader_page->write, 0);
+	local_set_unchecked(&cpu_buffer->reader_page->entries, 0);
 	local_set(&cpu_buffer->reader_page->page->commit, 0);
 	cpu_buffer->reader_page->real_end = 0;
 
@@ -3587,7 +3587,7 @@ rb_get_reader_page(struct ring_buffer_per_cpu *cpu_buffer)
 	 * want to compare with the last_overrun.
 	 */
 	smp_mb();
-	overwrite = local_read(&(cpu_buffer->overrun));
+	overwrite = local_read_unchecked(&(cpu_buffer->overrun));
 
 	/*
 	 * Here's the tricky part.
@@ -4173,8 +4173,8 @@ rb_reset_cpu(struct ring_buffer_per_cpu *cpu_buffer)
 
 	cpu_buffer->head_page
 		= list_entry(cpu_buffer->pages, struct buffer_page, list);
-	local_set(&cpu_buffer->head_page->write, 0);
-	local_set(&cpu_buffer->head_page->entries, 0);
+	local_set_unchecked(&cpu_buffer->head_page->write, 0);
+	local_set_unchecked(&cpu_buffer->head_page->entries, 0);
 	local_set(&cpu_buffer->head_page->page->commit, 0);
 
 	cpu_buffer->head_page->read = 0;
@@ -4184,18 +4184,18 @@ rb_reset_cpu(struct ring_buffer_per_cpu *cpu_buffer)
 
 	INIT_LIST_HEAD(&cpu_buffer->reader_page->list);
 	INIT_LIST_HEAD(&cpu_buffer->new_pages);
-	local_set(&cpu_buffer->reader_page->write, 0);
-	local_set(&cpu_buffer->reader_page->entries, 0);
+	local_set_unchecked(&cpu_buffer->reader_page->write, 0);
+	local_set_unchecked(&cpu_buffer->reader_page->entries, 0);
 	local_set(&cpu_buffer->reader_page->page->commit, 0);
 	cpu_buffer->reader_page->read = 0;
 
 	local_set(&cpu_buffer->entries_bytes, 0);
-	local_set(&cpu_buffer->overrun, 0);
-	local_set(&cpu_buffer->commit_overrun, 0);
-	local_set(&cpu_buffer->dropped_events, 0);
+	local_set_unchecked(&cpu_buffer->overrun, 0);
+	local_set_unchecked(&cpu_buffer->commit_overrun, 0);
+	local_set_unchecked(&cpu_buffer->dropped_events, 0);
 	local_set(&cpu_buffer->entries, 0);
 	local_set(&cpu_buffer->committing, 0);
-	local_set(&cpu_buffer->commits, 0);
+	local_set_unchecked(&cpu_buffer->commits, 0);
 	cpu_buffer->read = 0;
 	cpu_buffer->read_bytes = 0;
 
@@ -4585,8 +4585,8 @@ int ring_buffer_read_page(struct ring_buffer *buffer,
 		rb_init_page(bpage);
 		bpage = reader->page;
 		reader->page = *data_page;
-		local_set(&reader->write, 0);
-		local_set(&reader->entries, 0);
+		local_set_unchecked(&reader->write, 0);
+		local_set_unchecked(&reader->entries, 0);
 		reader->read = 0;
 		*data_page = bpage;
 
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index a2f0b9f..95f8a8b 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -3552,7 +3552,7 @@ int trace_keep_overwrite(struct tracer *tracer, u32 mask, int set)
 	return 0;
 }
 
-int set_tracer_flag(struct trace_array *tr, unsigned int mask, int enabled)
+int set_tracer_flag(struct trace_array *tr, unsigned long mask, int enabled)
 {
 	/* do nothing if flag is already set */
 	if (!!(tr->trace_flags & mask) == !!enabled)
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 3fff4ad..95c8932 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -1395,7 +1395,7 @@ void trace_printk_control(bool enabled);
 void trace_printk_init_buffers(void);
 void trace_printk_start_comm(void);
 int trace_keep_overwrite(struct tracer *tracer, u32 mask, int set);
-int set_tracer_flag(struct trace_array *tr, unsigned int mask, int enabled);
+int set_tracer_flag(struct trace_array *tr, unsigned long mask, int enabled);
 
 /*
  * Normal trace_printk() and friends allocates special buffers
diff --git a/kernel/trace/trace_clock.c b/kernel/trace/trace_clock.c
index 0f06532..247c8e7 100644
--- a/kernel/trace/trace_clock.c
+++ b/kernel/trace/trace_clock.c
@@ -127,7 +127,7 @@ u64 notrace trace_clock_global(void)
 }
 EXPORT_SYMBOL_GPL(trace_clock_global);
 
-static atomic64_t trace_counter;
+static atomic64_unchecked_t trace_counter;
 
 /*
  * trace_clock_counter(): simply an atomic counter.
@@ -136,5 +136,5 @@ static atomic64_t trace_counter;
  */
 u64 notrace trace_clock_counter(void)
 {
-	return atomic64_add_return(1, &trace_counter);
+	return atomic64_inc_return_unchecked(&trace_counter);
 }
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 6f96586..bcd069a 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -2362,7 +2362,6 @@ __trace_early_add_new_event(struct trace_event_call *call,
 	return 0;
 }
 
-struct ftrace_module_file_ops;
 static void __add_event_to_tracers(struct trace_event_call *call);
 
 /* Add an additional event_call dynamically */
diff --git a/kernel/trace/trace_functions_graph.c b/kernel/trace/trace_functions_graph.c
index 3a0244f..3383aff 100644
--- a/kernel/trace/trace_functions_graph.c
+++ b/kernel/trace/trace_functions_graph.c
@@ -138,7 +138,7 @@ ftrace_push_return_trace(unsigned long ret, unsigned long func, int *depth,
 
 	/* The return trace stack is full */
 	if (current->curr_ret_stack == FTRACE_RETFUNC_DEPTH - 1) {
-		atomic_inc(&current->trace_overrun);
+		atomic_inc_unchecked(&current->trace_overrun);
 		return -EBUSY;
 	}
 
@@ -235,7 +235,7 @@ ftrace_pop_return_trace(struct ftrace_graph_ret *trace, unsigned long *ret,
 	*ret = current->ret_stack[index].ret;
 	trace->func = current->ret_stack[index].func;
 	trace->calltime = current->ret_stack[index].calltime;
-	trace->overrun = atomic_read(&current->trace_overrun);
+	trace->overrun = atomic_read_unchecked(&current->trace_overrun);
 	trace->depth = index;
 }
 
diff --git a/kernel/trace/trace_mmiotrace.c b/kernel/trace/trace_mmiotrace.c
index 68f376c..e549816 100644
--- a/kernel/trace/trace_mmiotrace.c
+++ b/kernel/trace/trace_mmiotrace.c
@@ -24,7 +24,7 @@ struct header_iter {
 static struct trace_array *mmio_trace_array;
 static bool overrun_detected;
 static unsigned long prev_overruns;
-static atomic_t dropped_count;
+static atomic_unchecked_t dropped_count;
 
 static void mmio_reset_data(struct trace_array *tr)
 {
@@ -124,7 +124,7 @@ static void mmio_close(struct trace_iterator *iter)
 
 static unsigned long count_overruns(struct trace_iterator *iter)
 {
-	unsigned long cnt = atomic_xchg(&dropped_count, 0);
+	unsigned long cnt = atomic_xchg_unchecked(&dropped_count, 0);
 	unsigned long over = ring_buffer_overruns(iter->trace_buffer->buffer);
 
 	if (over > prev_overruns)
@@ -307,7 +307,7 @@ static void __trace_mmiotrace_rw(struct trace_array *tr,
 	event = trace_buffer_lock_reserve(buffer, TRACE_MMIO_RW,
 					  sizeof(*entry), 0, pc);
 	if (!event) {
-		atomic_inc(&dropped_count);
+		atomic_inc_unchecked(&dropped_count);
 		return;
 	}
 	entry	= ring_buffer_event_data(event);
@@ -337,7 +337,7 @@ static void __trace_mmiotrace_map(struct trace_array *tr,
 	event = trace_buffer_lock_reserve(buffer, TRACE_MMIO_MAP,
 					  sizeof(*entry), 0, pc);
 	if (!event) {
-		atomic_inc(&dropped_count);
+		atomic_inc_unchecked(&dropped_count);
 		return;
 	}
 	entry	= ring_buffer_event_data(event);
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
index 0bb9cf2..f319026 100644
--- a/kernel/trace/trace_output.c
+++ b/kernel/trace/trace_output.c
@@ -717,14 +717,16 @@ int register_trace_event(struct trace_event *event)
 			goto out;
 	}
 
+	pax_open_kernel();
 	if (event->funcs->trace == NULL)
-		event->funcs->trace = trace_nop_print;
+		const_cast(event->funcs->trace) = trace_nop_print;
 	if (event->funcs->raw == NULL)
-		event->funcs->raw = trace_nop_print;
+		const_cast(event->funcs->raw) = trace_nop_print;
 	if (event->funcs->hex == NULL)
-		event->funcs->hex = trace_nop_print;
+		const_cast(event->funcs->hex) = trace_nop_print;
 	if (event->funcs->binary == NULL)
-		event->funcs->binary = trace_nop_print;
+		const_cast(event->funcs->binary) = trace_nop_print;
+	pax_close_kernel();
 
 	key = event->type & (EVENT_HASHSIZE - 1);
 
diff --git a/kernel/trace/trace_seq.c b/kernel/trace/trace_seq.c
index e694c9f..6775a38 100644
--- a/kernel/trace/trace_seq.c
+++ b/kernel/trace/trace_seq.c
@@ -337,7 +337,7 @@ int trace_seq_path(struct trace_seq *s, const struct path *path)
 		return 0;
 	}
 
-	seq_buf_path(&s->seq, path, "\n");
+	seq_buf_path(&s->seq, path, "\n\\");
 
 	if (unlikely(seq_buf_has_overflowed(&s->seq))) {
 		s->seq.len = save_len;
diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c
index 2a1abba..2a81a78 100644
--- a/kernel/trace/trace_stack.c
+++ b/kernel/trace/trace_stack.c
@@ -88,7 +88,7 @@ check_stack(unsigned long ip, unsigned long *stack)
 		return;
 
 	/* we do not handle interrupt stacks yet */
-	if (!object_is_on_stack(stack))
+	if (!object_starts_on_stack(stack))
 		return;
 
 	/* Can't do this from NMI context (can cause deadlocks) */
diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c
index e78f364..ae5a282 100644
--- a/kernel/trace/trace_syscalls.c
+++ b/kernel/trace/trace_syscalls.c
@@ -604,6 +604,8 @@ static int perf_sysenter_enable(struct trace_event_call *call)
 	int num;
 
 	num = ((struct syscall_metadata *)call->data)->syscall_nr;
+	if (WARN_ON_ONCE(num < 0 || num >= NR_syscalls))
+		return -EINVAL;
 
 	mutex_lock(&syscall_trace_lock);
 	if (!sys_perf_refcount_enter)
@@ -624,6 +626,8 @@ static void perf_sysenter_disable(struct trace_event_call *call)
 	int num;
 
 	num = ((struct syscall_metadata *)call->data)->syscall_nr;
+	if (WARN_ON_ONCE(num < 0 || num >= NR_syscalls))
+		return;
 
 	mutex_lock(&syscall_trace_lock);
 	sys_perf_refcount_enter--;
@@ -676,6 +680,8 @@ static int perf_sysexit_enable(struct trace_event_call *call)
 	int num;
 
 	num = ((struct syscall_metadata *)call->data)->syscall_nr;
+	if (WARN_ON_ONCE(num < 0 || num >= NR_syscalls))
+		return -EINVAL;
 
 	mutex_lock(&syscall_trace_lock);
 	if (!sys_perf_refcount_exit)
@@ -696,6 +702,8 @@ static void perf_sysexit_disable(struct trace_event_call *call)
 	int num;
 
 	num = ((struct syscall_metadata *)call->data)->syscall_nr;
+	if (WARN_ON_ONCE(num < 0 || num >= NR_syscalls))
+		return;
 
 	mutex_lock(&syscall_trace_lock);
 	sys_perf_refcount_exit--;
diff --git a/kernel/user.c b/kernel/user.c
index b069ccb..c59fe26 100644
--- a/kernel/user.c
+++ b/kernel/user.c
@@ -127,8 +127,8 @@ static struct user_struct *uid_hash_find(kuid_t uid, struct hlist_head *hashent)
  * IRQ state (as stored in flags) is restored and uidhash_lock released
  * upon function exit.
  */
+static void free_user(struct user_struct *up, unsigned long flags) __releases(&uidhash_lock);
 static void free_user(struct user_struct *up, unsigned long flags)
-	__releases(&uidhash_lock)
 {
 	uid_hash_remove(up);
 	spin_unlock_irqrestore(&uidhash_lock, flags);
diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
index 9bafc21..cafd6e0 100644
--- a/kernel/user_namespace.c
+++ b/kernel/user_namespace.c
@@ -84,6 +84,21 @@ int create_user_ns(struct cred *new)
 	    !kgid_has_mapping(parent_ns, group))
 		return -EPERM;
 
+#ifdef CONFIG_GRKERNSEC
+	/*
+	 * This doesn't really inspire confidence:
+	 * http://marc.info/?l=linux-kernel&m=135543612731939&w=2
+	 * http://marc.info/?l=linux-kernel&m=135545831607095&w=2
+	 * Increases kernel attack surface in areas developers
+	 * previously cared little about ("low importance due
+	 * to requiring "root" capability")
+	 * To be removed when this code receives *proper* review
+	 */
+	if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SETUID) ||
+			!capable(CAP_SETGID))
+		return -EPERM;
+#endif
+
 	ns = kmem_cache_zalloc(user_ns_cachep, GFP_KERNEL);
 	if (!ns)
 		return -ENOMEM;
@@ -974,7 +989,7 @@ static int userns_install(struct nsproxy *nsproxy, struct ns_common *ns)
 	if (!thread_group_empty(current))
 		return -EINVAL;
 
-	if (current->fs->users != 1)
+	if (atomic_read(&current->fs->users) != 1)
 		return -EINVAL;
 
 	if (!ns_capable(user_ns, CAP_SYS_ADMIN))
diff --git a/kernel/utsname_sysctl.c b/kernel/utsname_sysctl.c
index c8eac43..4b5f08f 100644
--- a/kernel/utsname_sysctl.c
+++ b/kernel/utsname_sysctl.c
@@ -47,7 +47,7 @@ static void put_uts(struct ctl_table *table, int write, void *which)
 static int proc_do_uts_string(struct ctl_table *table, int write,
 		  void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	struct ctl_table uts_table;
+	ctl_table_no_const uts_table;
 	int r;
 	memcpy(&uts_table, table, sizeof(uts_table));
 	uts_table.data = get_uts(table, write);
diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index 9acb29f..6fe517c 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -680,7 +680,7 @@ static int watchdog_nmi_enable(unsigned int cpu) { return 0; }
 static void watchdog_nmi_disable(unsigned int cpu) { return; }
 #endif /* CONFIG_HARDLOCKUP_DETECTOR */
 
-static struct smp_hotplug_thread watchdog_threads = {
+static struct smp_hotplug_thread watchdog_threads __read_only = {
 	.store			= &softlockup_watchdog,
 	.thread_should_run	= watchdog_should_run,
 	.thread_fn		= watchdog,
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 5f5068e..64dcad7 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -1948,9 +1948,8 @@ static void pool_mayday_timeout(unsigned long __pool)
  * multiple times.  Does GFP_KERNEL allocations.  Called only from
  * manager.
  */
+static void maybe_create_worker(struct worker_pool *pool) __must_hold(&pool->lock);
 static void maybe_create_worker(struct worker_pool *pool)
-__releases(&pool->lock)
-__acquires(&pool->lock)
 {
 restart:
 	spin_unlock_irq(&pool->lock);
@@ -2040,9 +2039,8 @@ static bool manage_workers(struct worker *worker)
  * CONTEXT:
  * spin_lock_irq(pool->lock) which is released and regrabbed.
  */
+static void process_one_work(struct worker *worker, struct work_struct *work) __must_hold(&pool->lock);
 static void process_one_work(struct worker *worker, struct work_struct *work)
-__releases(&pool->lock)
-__acquires(&pool->lock)
 {
 	struct pool_workqueue *pwq = get_work_pwq(work);
 	struct worker_pool *pool = worker->pool;
@@ -4599,7 +4597,7 @@ static void rebind_workers(struct worker_pool *pool)
 		WARN_ON_ONCE(!(worker_flags & WORKER_UNBOUND));
 		worker_flags |= WORKER_REBOUND;
 		worker_flags &= ~WORKER_UNBOUND;
-		ACCESS_ONCE(worker->flags) = worker_flags;
+		ACCESS_ONCE_RW(worker->flags) = worker_flags;
 	}
 
 	spin_unlock_irq(&pool->lock);
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 1e9a607..c0eb5e0 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -243,6 +243,7 @@ config PAGE_OWNER
 	bool "Track page owner"
 	depends on DEBUG_KERNEL && STACKTRACE_SUPPORT
 	select DEBUG_FS
+	depends on !GRKERNSEC_KMEM
 	select STACKTRACE
 	select PAGE_EXTENSION
 	help
@@ -257,6 +258,7 @@ config PAGE_OWNER
 
 config DEBUG_FS
 	bool "Debug Filesystem"
+	depends on !GRKERNSEC_KMEM
 	help
 	  debugfs is a virtual file system that kernel developers use to put
 	  debugging files into.  Enable this option to be able to read and
@@ -510,6 +512,7 @@ config DEBUG_KMEMLEAK
 	bool "Kernel memory leak detector"
 	depends on DEBUG_KERNEL && HAVE_DEBUG_KMEMLEAK
 	select DEBUG_FS
+	depends on !GRKERNSEC_KMEM
 	select STACKTRACE if STACKTRACE_SUPPORT
 	select KALLSYMS
 	select CRC32
@@ -707,6 +710,7 @@ config KCOV
 	bool "Code coverage for fuzzing"
 	depends on ARCH_HAS_KCOV
 	select DEBUG_FS
+	depends on !GRKERNSEC_KMEM
 	help
 	  KCOV exposes kernel code coverage information in a form suitable
 	  for coverage-guided fuzzing (randomized testing).
@@ -997,7 +1001,7 @@ config DEBUG_MUTEXES
 
 config DEBUG_WW_MUTEX_SLOWPATH
 	bool "Wait/wound mutex debugging: Slowpath testing"
-	depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
+	depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT && !PAX_CONSTIFY_PLUGIN
 	select DEBUG_LOCK_ALLOC
 	select DEBUG_SPINLOCK
 	select DEBUG_MUTEXES
@@ -1014,7 +1018,7 @@ config DEBUG_WW_MUTEX_SLOWPATH
 
 config DEBUG_LOCK_ALLOC
 	bool "Lock debugging: detect incorrect freeing of live locks"
-	depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
+	depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT && !PAX_CONSTIFY_PLUGIN
 	select DEBUG_SPINLOCK
 	select DEBUG_MUTEXES
 	select LOCKDEP
@@ -1028,7 +1032,7 @@ config DEBUG_LOCK_ALLOC
 
 config PROVE_LOCKING
 	bool "Lock debugging: prove locking correctness"
-	depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
+	depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT && !PAX_CONSTIFY_PLUGIN
 	select LOCKDEP
 	select DEBUG_SPINLOCK
 	select DEBUG_MUTEXES
@@ -1079,7 +1083,7 @@ config LOCKDEP
 
 config LOCK_STAT
 	bool "Lock usage statistics"
-	depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
+	depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT && !PAX_CONSTIFY_PLUGIN
 	select LOCKDEP
 	select DEBUG_SPINLOCK
 	select DEBUG_MUTEXES
@@ -1492,6 +1496,7 @@ config NOTIFIER_ERROR_INJECTION
 	tristate "Notifier error injection"
 	depends on DEBUG_KERNEL
 	select DEBUG_FS
+	depends on !GRKERNSEC_KMEM
 	help
 	  This option provides the ability to inject artificial errors to
 	  specified notifier chain callbacks. It is useful to test the error
@@ -1637,6 +1642,7 @@ config FAIL_MMC_REQUEST
 config FAIL_FUTEX
 	bool "Fault-injection capability for futexes"
 	select DEBUG_FS
+	depends on !GRKERNSEC_KMEM
 	depends on FAULT_INJECTION && FUTEX
 	help
 	  Provide fault-injection capability for futexes.
@@ -1661,6 +1667,7 @@ config LATENCYTOP
 	depends on DEBUG_KERNEL
 	depends on STACKTRACE_SUPPORT
 	depends on PROC_FS
+	depends on !GRKERNSEC_HIDESYM
 	select FRAME_POINTER if !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM_UNWIND && !ARC
 	select KALLSYMS
 	select KALLSYMS_ALL
@@ -1677,7 +1684,7 @@ config ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
 config DEBUG_STRICT_USER_COPY_CHECKS
 	bool "Strict user copy size checks"
 	depends on ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
-	depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
+	depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING && !PAX_SIZE_OVERFLOW
 	help
 	  Enabling this option turns a certain set of sanity checks for user
 	  copy operations into compile time failures.
@@ -1819,7 +1826,7 @@ endmenu # runtime tests
 
 config PROVIDE_OHCI1394_DMA_INIT
 	bool "Remote debugging over FireWire early on boot"
-	depends on PCI && X86
+	depends on PCI && X86 && !GRKERNSEC
 	help
 	  If you want to debug problems which hang or crash the kernel early
 	  on boot and the crashing machine has a FireWire port, you can use
diff --git a/lib/Makefile b/lib/Makefile
index 7bd6fd4..643d6f9 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -80,7 +80,7 @@ obj-$(CONFIG_BTREE) += btree.o
 obj-$(CONFIG_INTERVAL_TREE) += interval_tree.o
 obj-$(CONFIG_ASSOCIATIVE_ARRAY) += assoc_array.o
 obj-$(CONFIG_DEBUG_PREEMPT) += smp_processor_id.o
-obj-$(CONFIG_DEBUG_LIST) += list_debug.o
+obj-y += list_debug.o
 obj-$(CONFIG_DEBUG_OBJECTS) += debugobjects.o
 
 ifneq ($(CONFIG_HAVE_DEC_LOCK),y)
diff --git a/lib/bitmap.c b/lib/bitmap.c
index c66da50..1ac10c9 100644
--- a/lib/bitmap.c
+++ b/lib/bitmap.c
@@ -363,7 +363,7 @@ int __bitmap_parse(const char *buf, unsigned int buflen,
 {
 	int c, old_c, totaldigits, ndigits, nchunks, nbits;
 	u32 chunk;
-	const char __user __force *ubuf = (const char __user __force *)buf;
+	const char __user *ubuf = (const char __force_user *)buf;
 
 	bitmap_zero(maskp, nmaskbits);
 
@@ -449,7 +449,7 @@ int bitmap_parse_user(const char __user *ubuf,
 {
 	if (!access_ok(VERIFY_READ, ubuf, ulen))
 		return -EFAULT;
-	return __bitmap_parse((const char __force *)ubuf,
+	return __bitmap_parse((const char __force_kernel *)ubuf,
 				ulen, 1, maskp, nmaskbits);
 
 }
@@ -509,7 +509,7 @@ static int __bitmap_parselist(const char *buf, unsigned int buflen,
 {
 	unsigned a, b;
 	int c, old_c, totaldigits, ndigits;
-	const char __user __force *ubuf = (const char __user __force *)buf;
+	const char __user *ubuf = (const char __force_user *)buf;
 	int at_start, in_range;
 
 	totaldigits = c = 0;
@@ -613,7 +613,7 @@ int bitmap_parselist_user(const char __user *ubuf,
 {
 	if (!access_ok(VERIFY_READ, ubuf, ulen))
 		return -EFAULT;
-	return __bitmap_parselist((const char __force *)ubuf,
+	return __bitmap_parselist((const char __force_kernel *)ubuf,
 					ulen, 1, maskp, nmaskbits);
 }
 EXPORT_SYMBOL(bitmap_parselist_user);
diff --git a/lib/bug.c b/lib/bug.c
index bc3656e..470f3ab 100644
--- a/lib/bug.c
+++ b/lib/bug.c
@@ -148,6 +148,8 @@ enum bug_trap_type report_bug(unsigned long bugaddr, struct pt_regs *regs)
 		return BUG_TRAP_TYPE_NONE;
 
 	bug = find_bug(bugaddr);
+	if (!bug)
+		return BUG_TRAP_TYPE_NONE;
 
 	file = NULL;
 	line = 0;
diff --git a/lib/debugobjects.c b/lib/debugobjects.c
index 519b5a1..4e58003 100644
--- a/lib/debugobjects.c
+++ b/lib/debugobjects.c
@@ -289,7 +289,7 @@ static void debug_object_is_on_stack(void *addr, int onstack)
 	if (limit > 4)
 		return;
 
-	is_on_stack = object_is_on_stack(addr);
+	is_on_stack = object_starts_on_stack(addr);
 	if (is_on_stack == onstack)
 		return;
 
diff --git a/lib/decompress_bunzip2.c b/lib/decompress_bunzip2.c
index 0234361..41a411c 100644
--- a/lib/decompress_bunzip2.c
+++ b/lib/decompress_bunzip2.c
@@ -665,7 +665,8 @@ static int INIT start_bunzip(struct bunzip_data **bdp, void *inbuf, long len,
 
 	/* Fourth byte (ascii '1'-'9'), indicates block size in units of 100k of
 	   uncompressed data.  Allocate intermediate buffer for block. */
-	bd->dbufSize = 100000*(i-BZh0);
+	i -= BZh0;
+	bd->dbufSize = 100000 * i;
 
 	bd->dbuf = large_malloc(bd->dbufSize * sizeof(int));
 	if (!bd->dbuf)
diff --git a/lib/decompress_unlzma.c b/lib/decompress_unlzma.c
index ed7a1fd..44a1a62 100644
--- a/lib/decompress_unlzma.c
+++ b/lib/decompress_unlzma.c
@@ -39,10 +39,10 @@
 
 #define	MIN(a, b) (((a) < (b)) ? (a) : (b))
 
-static long long INIT read_int(unsigned char *ptr, int size)
+static unsigned long long INIT read_int(unsigned char *ptr, int size)
 {
 	int i;
-	long long ret = 0;
+	unsigned long long ret = 0;
 
 	for (i = 0; i < size; i++)
 		ret = (ret << 8) | ptr[size-i-1];
diff --git a/lib/div64.c b/lib/div64.c
index 7f34525..c53be4b 100644
--- a/lib/div64.c
+++ b/lib/div64.c
@@ -61,7 +61,7 @@ EXPORT_SYMBOL(__div64_32);
 #endif
 
 #ifndef div_s64_rem
-s64 div_s64_rem(s64 dividend, s32 divisor, s32 *remainder)
+s64 __intentional_overflow(-1) div_s64_rem(s64 dividend, s32 divisor, s32 *remainder)
 {
 	u64 quotient;
 
@@ -132,7 +132,7 @@ EXPORT_SYMBOL(div64_u64_rem);
  * 'http://www.hackersdelight.org/hdcodetxt/divDouble.c.txt'
  */
 #ifndef div64_u64
-u64 div64_u64(u64 dividend, u64 divisor)
+u64 __intentional_overflow(-1) div64_u64(u64 dividend, u64 divisor)
 {
 	u32 high = divisor >> 32;
 	u64 quot;
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index 51a76af..7caf15b 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -982,7 +982,7 @@ static int dma_debug_device_change(struct notifier_block *nb, unsigned long acti
 
 void dma_debug_add_bus(struct bus_type *bus)
 {
-	struct notifier_block *nb;
+	notifier_block_no_const *nb;
 
 	if (dma_debug_disabled())
 		return;
@@ -1164,7 +1164,7 @@ static void check_unmap(struct dma_debug_entry *ref)
 
 static void check_for_stack(struct device *dev, void *addr)
 {
-	if (object_is_on_stack(addr))
+	if (object_starts_on_stack(addr))
 		err_printk(dev, NULL, "DMA-API: device driver maps memory from "
 				"stack [addr=%p]\n", addr);
 }
diff --git a/lib/extable.c b/lib/extable.c
index 0be02ad5..c2ad286 100644
--- a/lib/extable.c
+++ b/lib/extable.c
@@ -13,13 +13,22 @@
 #include <linux/init.h>
 #include <linux/sort.h>
 #include <asm/uaccess.h>
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+#include <asm/boot.h>
+#endif
 
 #ifndef ARCH_HAS_RELATIVE_EXTABLE
 #define ex_to_insn(x)	((x)->insn)
 #else
 static inline unsigned long ex_to_insn(const struct exception_table_entry *x)
 {
-	return (unsigned long)&x->insn + x->insn;
+	unsigned long reloc = 0;
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+	reloc = ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
+#endif
+
+	return (unsigned long)&x->insn + x->insn + reloc;
 }
 #endif
 
diff --git a/lib/inflate.c b/lib/inflate.c
index 013a761..c28f3fc 100644
--- a/lib/inflate.c
+++ b/lib/inflate.c
@@ -269,7 +269,7 @@ static void free(void *where)
 		malloc_ptr = free_mem_ptr;
 }
 #else
-#define malloc(a) kmalloc(a, GFP_KERNEL)
+#define malloc(a) kmalloc((a), GFP_KERNEL)
 #define free(a) kfree(a)
 #endif
 
diff --git a/lib/ioremap.c b/lib/ioremap.c
index 86c8911..f5bfc34 100644
--- a/lib/ioremap.c
+++ b/lib/ioremap.c
@@ -75,7 +75,7 @@ static inline int ioremap_pmd_range(pud_t *pud, unsigned long addr,
 	unsigned long next;
 
 	phys_addr -= addr;
-	pmd = pmd_alloc(&init_mm, pud, addr);
+	pmd = pmd_alloc_kernel(&init_mm, pud, addr);
 	if (!pmd)
 		return -ENOMEM;
 	do {
@@ -101,7 +101,7 @@ static inline int ioremap_pud_range(pgd_t *pgd, unsigned long addr,
 	unsigned long next;
 
 	phys_addr -= addr;
-	pud = pud_alloc(&init_mm, pgd, addr);
+	pud = pud_alloc_kernel(&init_mm, pgd, addr);
 	if (!pud)
 		return -ENOMEM;
 	do {
diff --git a/lib/irq_poll.c b/lib/irq_poll.c
index 836f7db..44d9849 100644
--- a/lib/irq_poll.c
+++ b/lib/irq_poll.c
@@ -74,7 +74,7 @@ void irq_poll_complete(struct irq_poll *iop)
 }
 EXPORT_SYMBOL(irq_poll_complete);
 
-static void irq_poll_softirq(struct softirq_action *h)
+static __latent_entropy void irq_poll_softirq(void)
 {
 	struct list_head *list = this_cpu_ptr(&blk_cpu_iopoll);
 	int rearm = 0, budget = irq_poll_budget;
diff --git a/lib/is_single_threaded.c b/lib/is_single_threaded.c
index 391fd23..96e17b6 100644
--- a/lib/is_single_threaded.c
+++ b/lib/is_single_threaded.c
@@ -22,6 +22,9 @@ bool current_is_single_threaded(void)
 	struct task_struct *p, *t;
 	bool ret;
 
+	if (!mm)
+		return true;
+
 	if (atomic_read(&task->signal->live) != 1)
 		return false;
 
diff --git a/lib/kobject.c b/lib/kobject.c
index 445dcae..cbfd25d 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -955,9 +955,9 @@ EXPORT_SYMBOL_GPL(kset_create_and_add);
 
 
 static DEFINE_SPINLOCK(kobj_ns_type_lock);
-static const struct kobj_ns_type_operations *kobj_ns_ops_tbl[KOBJ_NS_TYPES];
+static const struct kobj_ns_type_operations *kobj_ns_ops_tbl[KOBJ_NS_TYPES] __read_only;
 
-int kobj_ns_type_register(const struct kobj_ns_type_operations *ops)
+int __init kobj_ns_type_register(const struct kobj_ns_type_operations *ops)
 {
 	enum kobj_ns_type type = ops->type;
 	int error;
diff --git a/lib/list_debug.c b/lib/list_debug.c
index 3859bf6..818741d6 100644
--- a/lib/list_debug.c
+++ b/lib/list_debug.c
@@ -11,7 +11,9 @@
 #include <linux/bug.h>
 #include <linux/kernel.h>
 #include <linux/rculist.h>
+#include <linux/mm.h>
 
+#ifdef CONFIG_DEBUG_LIST
 /*
  * Insert a new entry between two known consecutive entries.
  *
@@ -19,21 +21,40 @@
  * the prev/next entries already!
  */
 
+static bool __list_add_debug(struct list_head *new,
+			     struct list_head *prev,
+			     struct list_head *next)
+{
+	if (unlikely(next->prev != prev)) {
+		printk(KERN_ERR "list_add corruption. next->prev should be "
+			"prev (%p), but was %p. (next=%p).\n",
+			prev, next->prev, next);
+		BUG();
+		return false;
+	}
+	if (unlikely(prev->next != next)) {
+		printk(KERN_ERR "list_add corruption. prev->next should be "
+			"next (%p), but was %p. (prev=%p).\n",
+			next, prev->next, prev);
+		BUG();
+		return false;
+	}
+	if (unlikely(new == prev || new == next)) {
+		printk(KERN_ERR "list_add double add: new=%p, prev=%p, next=%p.\n",
+			new, prev, next);
+		BUG();
+		return false;
+	}
+	return true;
+}
+
 void __list_add(struct list_head *new,
-			      struct list_head *prev,
-			      struct list_head *next)
+		struct list_head *prev,
+		struct list_head *next)
 {
-	WARN(next->prev != prev,
-		"list_add corruption. next->prev should be "
-		"prev (%p), but was %p. (next=%p).\n",
-		prev, next->prev, next);
-	WARN(prev->next != next,
-		"list_add corruption. prev->next should be "
-		"next (%p), but was %p. (prev=%p).\n",
-		next, prev->next, prev);
-	WARN(new == prev || new == next,
-	     "list_add double add: new=%p, prev=%p, next=%p.\n",
-	     new, prev, next);
+	if (!__list_add_debug(new, prev, next))
+		return;
+
 	next->prev = new;
 	new->next = next;
 	new->prev = prev;
@@ -41,28 +62,46 @@ void __list_add(struct list_head *new,
 }
 EXPORT_SYMBOL(__list_add);
 
-void __list_del_entry(struct list_head *entry)
+static bool __list_del_entry_debug(struct list_head *entry)
 {
 	struct list_head *prev, *next;
 
 	prev = entry->prev;
 	next = entry->next;
 
-	if (WARN(next == LIST_POISON1,
-		"list_del corruption, %p->next is LIST_POISON1 (%p)\n",
-		entry, LIST_POISON1) ||
-	    WARN(prev == LIST_POISON2,
-		"list_del corruption, %p->prev is LIST_POISON2 (%p)\n",
-		entry, LIST_POISON2) ||
-	    WARN(prev->next != entry,
-		"list_del corruption. prev->next should be %p, "
-		"but was %p\n", entry, prev->next) ||
-	    WARN(next->prev != entry,
-		"list_del corruption. next->prev should be %p, "
-		"but was %p\n", entry, next->prev))
+	if (unlikely(next == LIST_POISON1)) {
+		printk(KERN_ERR "list_del corruption, %p->next is LIST_POISON1 (%p)\n",
+			entry, LIST_POISON1);
+		BUG();
+		return false;
+	}
+	if (unlikely(prev == LIST_POISON2)) {
+		printk(KERN_ERR "list_del corruption, %p->prev is LIST_POISON2 (%p)\n",
+			entry, LIST_POISON2);
+		BUG();
+		return false;
+	}
+	if (unlikely(entry->prev->next != entry)) {
+		printk(KERN_ERR "list_del corruption. prev->next should be %p, "
+			"but was %p\n", entry, prev->next);
+		BUG();
+		return false;
+	}
+	if (unlikely(entry->next->prev != entry)) {
+		printk(KERN_ERR "list_del corruption. next->prev should be %p, "
+			"but was %p\n", entry, next->prev);
+		BUG();
+		return false;
+	}
+	return true;
+}
+
+void __list_del_entry(struct list_head *entry)
+{
+	if (!__list_del_entry_debug(entry))
 		return;
 
-	__list_del(prev, next);
+	__list_del(entry->prev, entry->next);
 }
 EXPORT_SYMBOL(__list_del_entry);
 
@@ -86,15 +125,85 @@ EXPORT_SYMBOL(list_del);
 void __list_add_rcu(struct list_head *new,
 		    struct list_head *prev, struct list_head *next)
 {
-	WARN(next->prev != prev,
-		"list_add_rcu corruption. next->prev should be prev (%p), but was %p. (next=%p).\n",
-		prev, next->prev, next);
-	WARN(prev->next != next,
-		"list_add_rcu corruption. prev->next should be next (%p), but was %p. (prev=%p).\n",
-		next, prev->next, prev);
+	if (!__list_add_debug(new, prev, next))
+		return;
+
 	new->next = next;
 	new->prev = prev;
 	rcu_assign_pointer(list_next_rcu(prev), new);
 	next->prev = new;
 }
 EXPORT_SYMBOL(__list_add_rcu);
+#endif
+
+void __pax_list_add(struct list_head *new, struct list_head *prev, struct list_head *next)
+{
+#ifdef CONFIG_DEBUG_LIST
+	if (!__list_add_debug(new, prev, next))
+		return;
+#endif
+
+	pax_open_kernel();
+	next->prev = new;
+	new->next = next;
+	new->prev = prev;
+	prev->next = new;
+	pax_close_kernel();
+}
+EXPORT_SYMBOL(__pax_list_add);
+
+void pax_list_del(struct list_head *entry)
+{
+#ifdef CONFIG_DEBUG_LIST
+	if (!__list_del_entry_debug(entry))
+		return;
+#endif
+
+	pax_open_kernel();
+	__list_del(entry->prev, entry->next);
+	entry->next = LIST_POISON1;
+	entry->prev = LIST_POISON2;
+	pax_close_kernel();
+}
+EXPORT_SYMBOL(pax_list_del);
+
+void pax_list_del_init(struct list_head *entry)
+{
+	pax_open_kernel();
+	__list_del(entry->prev, entry->next);
+	INIT_LIST_HEAD(entry);
+	pax_close_kernel();
+}
+EXPORT_SYMBOL(pax_list_del_init);
+
+void __pax_list_add_rcu(struct list_head *new,
+			struct list_head *prev, struct list_head *next)
+{
+#ifdef CONFIG_DEBUG_LIST
+	if (!__list_add_debug(new, prev, next))
+		return;
+#endif
+
+	pax_open_kernel();
+	new->next = next;
+	new->prev = prev;
+	rcu_assign_pointer(list_next_rcu(prev), new);
+	next->prev = new;
+	pax_close_kernel();
+}
+EXPORT_SYMBOL(__pax_list_add_rcu);
+
+void pax_list_del_rcu(struct list_head *entry)
+{
+#ifdef CONFIG_DEBUG_LIST
+	if (!__list_del_entry_debug(entry))
+		return;
+#endif
+
+	pax_open_kernel();
+	__list_del(entry->prev, entry->next);
+	entry->next = LIST_POISON1;
+	entry->prev = LIST_POISON2;
+	pax_close_kernel();
+}
+EXPORT_SYMBOL(pax_list_del_rcu);
diff --git a/lib/lockref.c b/lib/lockref.c
index 5a92189..d77978d 100644
--- a/lib/lockref.c
+++ b/lib/lockref.c
@@ -40,13 +40,13 @@
 void lockref_get(struct lockref *lockref)
 {
 	CMPXCHG_LOOP(
-		new.count++;
+		__lockref_inc(&new);
 	,
 		return;
 	);
 
 	spin_lock(&lockref->lock);
-	lockref->count++;
+	__lockref_inc(lockref);
 	spin_unlock(&lockref->lock);
 }
 EXPORT_SYMBOL(lockref_get);
@@ -61,8 +61,8 @@ int lockref_get_not_zero(struct lockref *lockref)
 	int retval;
 
 	CMPXCHG_LOOP(
-		new.count++;
-		if (old.count <= 0)
+		__lockref_inc(&new);
+		if (__lockref_read(&old) <= 0)
 			return 0;
 	,
 		return 1;
@@ -70,8 +70,8 @@ int lockref_get_not_zero(struct lockref *lockref)
 
 	spin_lock(&lockref->lock);
 	retval = 0;
-	if (lockref->count > 0) {
-		lockref->count++;
+	if (__lockref_read(lockref) > 0) {
+		__lockref_inc(lockref);
 		retval = 1;
 	}
 	spin_unlock(&lockref->lock);
@@ -88,17 +88,17 @@ EXPORT_SYMBOL(lockref_get_not_zero);
 int lockref_get_or_lock(struct lockref *lockref)
 {
 	CMPXCHG_LOOP(
-		new.count++;
-		if (old.count <= 0)
+		__lockref_inc(&new);
+		if (__lockref_read(&old) <= 0)
 			break;
 	,
 		return 1;
 	);
 
 	spin_lock(&lockref->lock);
-	if (lockref->count <= 0)
+	if (__lockref_read(lockref) <= 0)
 		return 0;
-	lockref->count++;
+	__lockref_inc(lockref);
 	spin_unlock(&lockref->lock);
 	return 1;
 }
@@ -114,11 +114,11 @@ EXPORT_SYMBOL(lockref_get_or_lock);
 int lockref_put_return(struct lockref *lockref)
 {
 	CMPXCHG_LOOP(
-		new.count--;
-		if (old.count <= 0)
+		__lockref_dec(&new);
+		if (__lockref_read(&old) <= 0)
 			return -1;
 	,
-		return new.count;
+		return __lockref_read(&new);
 	);
 	return -1;
 }
@@ -132,17 +132,17 @@ EXPORT_SYMBOL(lockref_put_return);
 int lockref_put_or_lock(struct lockref *lockref)
 {
 	CMPXCHG_LOOP(
-		new.count--;
-		if (old.count <= 1)
+		__lockref_dec(&new);
+		if (__lockref_read(&old) <= 1)
 			break;
 	,
 		return 1;
 	);
 
 	spin_lock(&lockref->lock);
-	if (lockref->count <= 1)
+	if (__lockref_read(lockref) <= 1)
 		return 0;
-	lockref->count--;
+	__lockref_dec(lockref);
 	spin_unlock(&lockref->lock);
 	return 1;
 }
@@ -155,7 +155,7 @@ EXPORT_SYMBOL(lockref_put_or_lock);
 void lockref_mark_dead(struct lockref *lockref)
 {
 	assert_spin_locked(&lockref->lock);
-	lockref->count = -128;
+	__lockref_set(lockref, -128);
 }
 EXPORT_SYMBOL(lockref_mark_dead);
 
@@ -169,8 +169,8 @@ int lockref_get_not_dead(struct lockref *lockref)
 	int retval;
 
 	CMPXCHG_LOOP(
-		new.count++;
-		if (old.count < 0)
+		__lockref_inc(&new);
+		if (__lockref_read(&old) < 0)
 			return 0;
 	,
 		return 1;
@@ -178,8 +178,8 @@ int lockref_get_not_dead(struct lockref *lockref)
 
 	spin_lock(&lockref->lock);
 	retval = 0;
-	if (lockref->count >= 0) {
-		lockref->count++;
+	if (__lockref_read(lockref) >= 0) {
+		__lockref_inc(lockref);
 		retval = 1;
 	}
 	spin_unlock(&lockref->lock);
diff --git a/lib/nlattr.c b/lib/nlattr.c
index f5907d2..36072be 100644
--- a/lib/nlattr.c
+++ b/lib/nlattr.c
@@ -278,6 +278,8 @@ int nla_memcpy(void *dest, const struct nlattr *src, int count)
 {
 	int minlen = min_t(int, count, nla_len(src));
 
+	BUG_ON(minlen < 0);
+
 	memcpy(dest, nla_data(src), minlen);
 	if (count > minlen)
 		memset(dest + minlen, 0, count - minlen);
diff --git a/lib/percpu-refcount.c b/lib/percpu-refcount.c
index 27fe749..2c0e855 100644
--- a/lib/percpu-refcount.c
+++ b/lib/percpu-refcount.c
@@ -31,7 +31,7 @@
  * atomic_long_t can't hit 0 before we've added up all the percpu refs.
  */
 
-#define PERCPU_COUNT_BIAS	(1LU << (BITS_PER_LONG - 1))
+#define PERCPU_COUNT_BIAS	(1LU << (BITS_PER_LONG - 2))
 
 static DECLARE_WAIT_QUEUE_HEAD(percpu_ref_switch_waitq);
 
diff --git a/lib/radix-tree.c b/lib/radix-tree.c
index 1624c41..1a43c06 100644
--- a/lib/radix-tree.c
+++ b/lib/radix-tree.c
@@ -68,7 +68,7 @@ struct radix_tree_preload {
 	/* nodes->private_data points to next preallocated node */
 	struct radix_tree_node *nodes;
 };
-static DEFINE_PER_CPU(struct radix_tree_preload, radix_tree_preloads) = { 0, };
+static DEFINE_PER_CPU(struct radix_tree_preload, radix_tree_preloads);
 
 static inline void *ptr_to_indirect(void *ptr)
 {
diff --git a/lib/random32.c b/lib/random32.c
index 510d1ce..722d2b6 100644
--- a/lib/random32.c
+++ b/lib/random32.c
@@ -47,7 +47,7 @@ static inline void prandom_state_selftest(void)
 }
 #endif
 
-static DEFINE_PER_CPU(struct rnd_state, net_rand_state);
+static DEFINE_PER_CPU(struct rnd_state, net_rand_state) __latent_entropy;
 
 /**
  *	prandom_u32_state - seeded pseudo-random number generator.
diff --git a/lib/rbtree.c b/lib/rbtree.c
index 1356454..70ce6c6 100644
--- a/lib/rbtree.c
+++ b/lib/rbtree.c
@@ -412,7 +412,9 @@ static inline void dummy_copy(struct rb_node *old, struct rb_node *new) {}
 static inline void dummy_rotate(struct rb_node *old, struct rb_node *new) {}
 
 static const struct rb_augment_callbacks dummy_callbacks = {
-	dummy_propagate, dummy_copy, dummy_rotate
+	.propagate = dummy_propagate,
+	.copy = dummy_copy,
+	.rotate = dummy_rotate
 };
 
 void rb_insert_color(struct rb_node *node, struct rb_root *root)
diff --git a/lib/rhashtable.c b/lib/rhashtable.c
index cc80870..6378152 100644
--- a/lib/rhashtable.c
+++ b/lib/rhashtable.c
@@ -555,8 +555,8 @@ EXPORT_SYMBOL_GPL(rhashtable_walk_exit);
  * will rewind back to the beginning and you may use it immediately
  * by calling rhashtable_walk_next.
  */
+int rhashtable_walk_start(struct rhashtable_iter *iter) __acquires(RCU);
 int rhashtable_walk_start(struct rhashtable_iter *iter)
-	__acquires(RCU)
 {
 	struct rhashtable *ht = iter->ht;
 
@@ -640,8 +640,8 @@ EXPORT_SYMBOL_GPL(rhashtable_walk_next);
  *
  * Finish a hash table walk.
  */
+void rhashtable_walk_stop(struct rhashtable_iter *iter) __releases(RCU);
 void rhashtable_walk_stop(struct rhashtable_iter *iter)
-	__releases(RCU)
 {
 	struct rhashtable *ht;
 	struct bucket_table *tbl = iter->walker->tbl;
diff --git a/lib/seq_buf.c b/lib/seq_buf.c
index cb18469..20ac511 100644
--- a/lib/seq_buf.c
+++ b/lib/seq_buf.c
@@ -259,7 +259,7 @@ int seq_buf_putmem_hex(struct seq_buf *s, const void *mem,
  */
 int seq_buf_path(struct seq_buf *s, const struct path *path, const char *esc)
 {
-	char *buf;
+	unsigned char *buf;
 	size_t size = seq_buf_get_buf(s, &buf);
 	int res = -1;
 
@@ -268,7 +268,7 @@ int seq_buf_path(struct seq_buf *s, const struct path *path, const char *esc)
 	if (size) {
 		char *p = d_path(path, buf, size);
 		if (!IS_ERR(p)) {
-			char *end = mangle_path(buf, p, esc);
+			unsigned char *end = mangle_path(buf, p, esc);
 			if (end)
 				res = end - buf;
 		}
diff --git a/lib/show_mem.c b/lib/show_mem.c
index 1feed6a..4ede1e9 100644
--- a/lib/show_mem.c
+++ b/lib/show_mem.c
@@ -47,6 +47,6 @@ void show_mem(unsigned int filter)
 		quicklist_total_size());
 #endif
 #ifdef CONFIG_MEMORY_FAILURE
-	printk("%lu pages hwpoisoned\n", atomic_long_read(&num_poisoned_pages));
+	printk("%lu pages hwpoisoned\n", atomic_long_read_unchecked(&num_poisoned_pages));
 #endif
 }
diff --git a/lib/strncpy_from_user.c b/lib/strncpy_from_user.c
index 3384032..e4389a1 100644
--- a/lib/strncpy_from_user.c
+++ b/lib/strncpy_from_user.c
@@ -22,7 +22,7 @@
  */
 static inline long do_strncpy_from_user(char *dst, const char __user *src, long count, unsigned long max)
 {
-	const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
+	static const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
 	long res = 0;
 
 	/*
diff --git a/lib/strnlen_user.c b/lib/strnlen_user.c
index 2625943..1541382 100644
--- a/lib/strnlen_user.c
+++ b/lib/strnlen_user.c
@@ -26,7 +26,7 @@
  */
 static inline long do_strnlen_user(const char __user *src, unsigned long count, unsigned long max)
 {
-	const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
+	static const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
 	long align, res = 0;
 	unsigned long c;
 
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 76f29ec..1a5316f 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -690,7 +690,7 @@ EXPORT_SYMBOL(swiotlb_alloc_coherent);
 
 void
 swiotlb_free_coherent(struct device *hwdev, size_t size, void *vaddr,
-		      dma_addr_t dev_addr)
+		      dma_addr_t dev_addr, struct dma_attrs *attrs)
 {
 	phys_addr_t paddr = dma_to_phys(hwdev, dev_addr);
 
diff --git a/lib/usercopy.c b/lib/usercopy.c
index 4f5b1dd..7cab418 100644
--- a/lib/usercopy.c
+++ b/lib/usercopy.c
@@ -7,3 +7,9 @@ void copy_from_user_overflow(void)
 	WARN(1, "Buffer overflow detected!\n");
 }
 EXPORT_SYMBOL(copy_from_user_overflow);
+
+void copy_to_user_overflow(void)
+{
+	WARN(1, "Buffer overflow detected!\n");
+}
+EXPORT_SYMBOL(copy_to_user_overflow);
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index ccb664b..058e2978 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -16,6 +16,9 @@
  * - scnprintf and vscnprintf
  */
 
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+#define __INCLUDED_BY_HIDESYM 1
+#endif
 #include <stdarg.h>
 #include <linux/clk.h>
 #include <linux/clk-provider.h>
@@ -679,7 +682,7 @@ char *symbol_string(char *buf, char *end, void *ptr,
 #ifdef CONFIG_KALLSYMS
 	if (*fmt == 'B')
 		sprint_backtrace(sym, value);
-	else if (*fmt != 'f' && *fmt != 's')
+	else if (*fmt != 'f' && *fmt != 's' && *fmt != 'X')
 		sprint_symbol(sym, value);
 	else
 		sprint_symbol_no_offset(sym, value);
@@ -1475,7 +1478,11 @@ char *flags_string(char *buf, char *end, void *flags_ptr, const char *fmt)
 	return format_flags(buf, end, flags, names);
 }
 
-int kptr_restrict __read_mostly;
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+int kptr_restrict __read_only = 2;
+#else
+int kptr_restrict __read_only;
+#endif
 
 /*
  * Show a '%p' thing.  A kernel extension is that the '%p' is followed
@@ -1486,8 +1493,10 @@ int kptr_restrict __read_mostly;
  *
  * - 'F' For symbolic function descriptor pointers with offset
  * - 'f' For simple symbolic function names without offset
+ * - 'X' For simple symbolic function names without offset approved for use with GRKERNSEC_HIDESYM
  * - 'S' For symbolic direct pointers with offset
  * - 's' For symbolic direct pointers without offset
+ * - 'A' For symbolic direct pointers with offset approved for use with GRKERNSEC_HIDESYM
  * - '[FfSs]R' as above with __builtin_extract_return_addr() translation
  * - 'B' For backtraced symbolic direct pointers with offset
  * - 'R' For decoded struct resource, e.g., [mem 0x0-0x1f 64bit pref]
@@ -1583,12 +1592,12 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
 
 	if (!ptr && *fmt != 'K') {
 		/*
-		 * Print (null) with the same width as a pointer so it makes
+		 * Print (nil) with the same width as a pointer so it makes
 		 * tabular output look nice.
 		 */
 		if (spec.field_width == -1)
 			spec.field_width = default_width;
-		return string(buf, end, "(null)", spec);
+		return string(buf, end, "(nil)", spec);
 	}
 
 	switch (*fmt) {
@@ -1598,6 +1607,14 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
 		/* Fallthrough */
 	case 'S':
 	case 's':
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+		break;
+#else
+		return symbol_string(buf, end, ptr, spec, fmt);
+#endif
+	case 'X':
+		ptr = dereference_function_descriptor(ptr);
+	case 'A':
 	case 'B':
 		return symbol_string(buf, end, ptr, spec, fmt);
 	case 'R':
@@ -1662,6 +1679,8 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
 			va_end(va);
 			return buf;
 		}
+	case 'P':
+		break;
 	case 'K':
 		switch (kptr_restrict) {
 		case 0:
@@ -1724,6 +1743,22 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
 	case 'G':
 		return flags_string(buf, end, ptr, fmt);
 	}
+
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+	/* 'P' = approved pointers to copy to userland,
+	   as in the /proc/kallsyms case, as we make it display nothing
+	   for non-root users, and the real contents for root users
+	   'X' = approved simple symbols
+	   Also ignore 'K' pointers, since we force their NULLing for non-root users
+	   above
+	*/
+	if ((unsigned long)ptr > TASK_SIZE && *fmt != 'P' && *fmt != 'X' && *fmt != 'K' && is_usercopy_object(buf)) {
+		printk(KERN_ALERT "grsec: kernel infoleak detected!  Please report this log to spender@grsecurity.net.\n");
+		dump_stack();
+		ptr = NULL;
+	}
+#endif
+
 	spec.flags |= SMALL;
 	if (spec.field_width == -1) {
 		spec.field_width = default_width;
@@ -2424,11 +2459,11 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf)
 	typeof(type) value;						\
 	if (sizeof(type) == 8) {					\
 		args = PTR_ALIGN(args, sizeof(u32));			\
-		*(u32 *)&value = *(u32 *)args;				\
-		*((u32 *)&value + 1) = *(u32 *)(args + 4);		\
+		*(u32 *)&value = *(const u32 *)args;			\
+		*((u32 *)&value + 1) = *(const u32 *)(args + 4);	\
 	} else {							\
 		args = PTR_ALIGN(args, sizeof(type));			\
-		value = *(typeof(type) *)args;				\
+		value = *(const typeof(type) *)args;			\
 	}								\
 	args += sizeof(type);						\
 	value;								\
@@ -2491,7 +2526,7 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf)
 		case FORMAT_TYPE_STR: {
 			const char *str_arg = args;
 			args += strlen(str_arg) + 1;
-			str = string(str, end, (char *)str_arg, spec);
+			str = string(str, end, str_arg, spec);
 			break;
 		}
 
diff --git a/localversion-grsec b/localversion-grsec
new file mode 100644
index 0000000..7cd6065
--- /dev/null
+++ b/localversion-grsec
@@ -0,0 +1 @@
+-grsec
diff --git a/mm/Kconfig b/mm/Kconfig
index 989f8f3..3f7e8cc 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -323,10 +323,11 @@ config KSM
 	  root has set /sys/kernel/mm/ksm/run to 1 (if CONFIG_SYSFS is set).
 
 config DEFAULT_MMAP_MIN_ADDR
-        int "Low address space to protect from user allocation"
+	int "Low address space to protect from user allocation"
 	depends on MMU
-        default 4096
-        help
+	default 32768 if ALPHA || ARM || PARISC || SPARC32
+	default 65536
+	help
 	  This is the portion of low virtual memory which should be protected
 	  from userspace allocation.  Keeping a user from writing to low pages
 	  can help reduce the impact of kernel NULL pointer bugs.
@@ -358,8 +359,9 @@ config MEMORY_FAILURE
 
 config HWPOISON_INJECT
 	tristate "HWPoison pages injector"
-	depends on MEMORY_FAILURE && DEBUG_KERNEL && PROC_FS
+	depends on MEMORY_FAILURE && DEBUG_KERNEL && PROC_FS && !GRKERNSEC
 	select PROC_PAGE_MONITOR
+	depends on !GRKERNSEC
 
 config NOMMU_INITIAL_TRIM_EXCESS
 	int "Turn on mmap() excess space trimming before booting"
@@ -520,6 +522,7 @@ config MEM_SOFT_DIRTY
 	bool "Track memory changes"
 	depends on CHECKPOINT_RESTORE && HAVE_ARCH_SOFT_DIRTY && PROC_FS
 	select PROC_PAGE_MONITOR
+	depends on !GRKERNSEC
 	help
 	  This option enables memory changes tracking by introducing a
 	  soft-dirty bit on pte-s. This bit it set when someone writes
@@ -594,6 +597,7 @@ config ZSMALLOC_STAT
 	bool "Export zsmalloc statistics"
 	depends on ZSMALLOC
 	select DEBUG_FS
+	depends on !GRKERNSEC_KMEM
 	help
 	  This option enables code in the zsmalloc to collect various
 	  statistics about whats happening in zsmalloc and exports that
diff --git a/mm/Kconfig.debug b/mm/Kconfig.debug
index 22f4cd9..402f316 100644
--- a/mm/Kconfig.debug
+++ b/mm/Kconfig.debug
@@ -10,6 +10,7 @@ config PAGE_EXTENSION
 config DEBUG_PAGEALLOC
 	bool "Debug page memory allocations"
 	depends on DEBUG_KERNEL
+	depends on !PAX_MEMORY_SANITIZE
 	depends on !HIBERNATION || ARCH_SUPPORTS_DEBUG_PAGEALLOC && !PPC && !SPARC
 	depends on !KMEMCHECK
 	select PAGE_EXTENSION
diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index 0c6317b..24c13bd 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -12,7 +12,7 @@
 #include <linux/device.h>
 #include <trace/events/writeback.h>
 
-static atomic_long_t bdi_seq = ATOMIC_LONG_INIT(0);
+static atomic_long_unchecked_t bdi_seq = ATOMIC_LONG_INIT(0);
 
 struct backing_dev_info noop_backing_dev_info = {
 	.name		= "noop",
@@ -879,7 +879,7 @@ int bdi_setup_and_register(struct backing_dev_info *bdi, char *name)
 		return err;
 
 	err = bdi_register(bdi, NULL, "%.28s-%ld", name,
-			   atomic_long_inc_return(&bdi_seq));
+			   atomic_long_inc_return_unchecked(&bdi_seq));
 	if (err) {
 		bdi_destroy(bdi);
 		return err;
diff --git a/mm/fadvise.c b/mm/fadvise.c
index b8024fa..132d187 100644
--- a/mm/fadvise.c
+++ b/mm/fadvise.c
@@ -154,7 +154,7 @@ out:
 
 #ifdef __ARCH_WANT_SYS_FADVISE64
 
-SYSCALL_DEFINE4(fadvise64, int, fd, loff_t, offset, size_t, len, int, advice)
+SYSCALL_DEFINE4(fadvise64, int, fd, loff_t, offset, loff_t, len, int, advice)
 {
 	return sys_fadvise64_64(fd, offset, len, advice);
 }
diff --git a/mm/filemap.c b/mm/filemap.c
index f2479af..13e3c295 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -2244,7 +2244,7 @@ int generic_file_mmap(struct file * file, struct vm_area_struct * vma)
 	struct address_space *mapping = file->f_mapping;
 
 	if (!mapping->a_ops->readpage)
-		return -ENOEXEC;
+		return -ENODEV;
 	file_accessed(file);
 	vma->vm_ops = &generic_file_vm_ops;
 	return 0;
@@ -2287,7 +2287,7 @@ static struct page *wait_on_page_read(struct page *page)
 
 static struct page *do_read_cache_page(struct address_space *mapping,
 				pgoff_t index,
-				int (*filler)(void *, struct page *),
+				filler_t *filler,
 				void *data,
 				gfp_t gfp)
 {
@@ -2394,7 +2394,7 @@ out:
  */
 struct page *read_cache_page(struct address_space *mapping,
 				pgoff_t index,
-				int (*filler)(void *, struct page *),
+				filler_t *filler,
 				void *data)
 {
 	return do_read_cache_page(mapping, index, filler, data, mapping_gfp_mask(mapping));
@@ -2416,7 +2416,7 @@ struct page *read_cache_page_gfp(struct address_space *mapping,
 				pgoff_t index,
 				gfp_t gfp)
 {
-	filler_t *filler = (filler_t *)mapping->a_ops->readpage;
+	filler_t *filler = mapping->a_ops->readpage;
 
 	return do_read_cache_page(mapping, index, filler, NULL, gfp);
 }
@@ -2446,6 +2446,7 @@ inline ssize_t generic_write_checks(struct kiocb *iocb, struct iov_iter *from)
 	pos = iocb->ki_pos;
 
 	if (limit != RLIM_INFINITY) {
+		gr_learn_resource(current, RLIMIT_FSIZE, iocb->ki_pos, 0);
 		if (iocb->ki_pos >= limit) {
 			send_sig(SIGXFSZ, current, 0);
 			return -EFBIG;
diff --git a/mm/gup.c b/mm/gup.c
index c057784..aafea3a 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -357,11 +357,6 @@ static int faultin_page(struct task_struct *tsk, struct vm_area_struct *vma,
 	/* mlock all present pages, but do not fault in new pages */
 	if ((*flags & (FOLL_POPULATE | FOLL_MLOCK)) == FOLL_MLOCK)
 		return -ENOENT;
-	/* For mm_populate(), just skip the stack guard page. */
-	if ((*flags & FOLL_POPULATE) &&
-			(stack_guard_page_start(vma, address) ||
-			 stack_guard_page_end(vma, address + PAGE_SIZE)))
-		return -ENOENT;
 	if (*flags & FOLL_WRITE)
 		fault_flags |= FAULT_FLAG_WRITE;
 	if (*flags & FOLL_REMOTE)
@@ -535,14 +530,14 @@ long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
 	if (!(gup_flags & FOLL_FORCE))
 		gup_flags |= FOLL_NUMA;
 
-	do {
+	while (nr_pages) {
 		struct page *page;
 		unsigned int foll_flags = gup_flags;
 		unsigned int page_increm;
 
 		/* first iteration or cross vma bound */
 		if (!vma || start >= vma->vm_end) {
-			vma = find_extend_vma(mm, start);
+			vma = find_vma(mm, start);
 			if (!vma && in_gate_area(mm, start)) {
 				int ret;
 				ret = get_gate_page(mm, start & PAGE_MASK,
@@ -554,7 +549,7 @@ long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
 				goto next_page;
 			}
 
-			if (!vma || check_vma_flags(vma, gup_flags))
+			if (!vma || start < vma->vm_start || check_vma_flags(vma, gup_flags))
 				return i ? : -EFAULT;
 			if (is_vm_hugetlb_page(vma)) {
 				i = follow_hugetlb_page(mm, vma, pages, vmas,
@@ -615,7 +610,7 @@ next_page:
 		i += page_increm;
 		start += page_increm * PAGE_SIZE;
 		nr_pages -= page_increm;
-	} while (nr_pages);
+	}
 	return i;
 }
 EXPORT_SYMBOL(__get_user_pages);
diff --git a/mm/highmem.c b/mm/highmem.c
index 123bcd3..c2c85db 100644
--- a/mm/highmem.c
+++ b/mm/highmem.c
@@ -195,8 +195,9 @@ static void flush_all_zero_pkmaps(void)
 		 * So no dangers, even with speculative execution.
 		 */
 		page = pte_page(pkmap_page_table[i]);
+		pax_open_kernel();
 		pte_clear(&init_mm, PKMAP_ADDR(i), &pkmap_page_table[i]);
-
+		pax_close_kernel();
 		set_page_address(page, NULL);
 		need_flush = 1;
 	}
@@ -259,8 +260,11 @@ start:
 		}
 	}
 	vaddr = PKMAP_ADDR(last_pkmap_nr);
+
+	pax_open_kernel();
 	set_pte_at(&init_mm, vaddr,
 		   &(pkmap_page_table[last_pkmap_nr]), mk_pte(page, kmap_prot));
+	pax_close_kernel();
 
 	pkmap_count[last_pkmap_nr] = 1;
 	set_page_address(page, (void *)vaddr);
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 19d0d08..9a1ad47 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -38,7 +38,60 @@ int hugepages_treat_as_movable;
 
 int hugetlb_max_hstate __read_mostly;
 unsigned int default_hstate_idx;
-struct hstate hstates[HUGE_MAX_HSTATE];
+
+#ifdef CONFIG_CGROUP_HUGETLB
+static struct cftype hugetlb_files[HUGE_MAX_HSTATE][5] = {
+# define MEMFILE_PRIVATE(x, val)	(((x) << 16) | (val))
+# define CFTYPE_INIT(idx) \
+	{ /* Add the limit file */					\
+	  [0] = { .private = MEMFILE_PRIVATE(idx, RES_LIMIT),		\
+		  .read_u64 = hugetlb_cgroup_read_u64,			\
+		  .write = hugetlb_cgroup_write, },			\
+	  /* Add the usage file */					\
+	  [1] = { .private = MEMFILE_PRIVATE(idx, RES_USAGE),		\
+		  .read_u64 = hugetlb_cgroup_read_u64, },		\
+	  /* Add the MAX usage file */					\
+	  [2] = { .private = MEMFILE_PRIVATE(idx, RES_MAX_USAGE),	\
+		  .write = hugetlb_cgroup_reset,			\
+		  .read_u64 = hugetlb_cgroup_read_u64, },		\
+	  /* Add the failcntfile */					\
+	  [3] = { .private = MEMFILE_PRIVATE(idx, RES_FAILCNT),		\
+		  .write = hugetlb_cgroup_reset,			\
+		  .read_u64 = hugetlb_cgroup_read_u64, },		\
+	  [4] = { /* NULL terminator */ },				\
+	}
+
+# if HUGE_MAX_HSTATE > 0
+	[0] = CFTYPE_INIT(0),
+# endif
+# if HUGE_MAX_HSTATE > 1
+	[1] = CFTYPE_INIT(1),
+# endif
+# if HUGE_MAX_HSTATE > 2
+#  error PaX: add more initializers...
+# endif
+
+# undef CFTYPE_INIT
+};
+#endif
+
+struct hstate hstates[HUGE_MAX_HSTATE] = {
+#ifdef CONFIG_CGROUP_HUGETLB
+# define HSTATE_INIT(idx) [idx] = { .cgroup_files = &hugetlb_files[idx] }
+
+# if HUGE_MAX_HSTATE > 0
+	HSTATE_INIT(0),
+# endif
+# if HUGE_MAX_HSTATE > 1
+	HSTATE_INIT(1),
+# endif
+# if HUGE_MAX_HSTATE > 2
+#  error PaX: add more initializers...
+# endif
+
+# undef HSTATE_INIT
+#endif
+};
 /*
  * Minimum page order among possible hugepage sizes, set to a proper value
  * at boot time.
@@ -2745,6 +2798,7 @@ static int hugetlb_sysctl_handler_common(bool obey_mempolicy,
 			 struct ctl_table *table, int write,
 			 void __user *buffer, size_t *length, loff_t *ppos)
 {
+	ctl_table_no_const t;
 	struct hstate *h = &default_hstate;
 	unsigned long tmp = h->max_huge_pages;
 	int ret;
@@ -2752,9 +2806,10 @@ static int hugetlb_sysctl_handler_common(bool obey_mempolicy,
 	if (!hugepages_supported())
 		return -EOPNOTSUPP;
 
-	table->data = &tmp;
-	table->maxlen = sizeof(unsigned long);
-	ret = proc_doulongvec_minmax(table, write, buffer, length, ppos);
+	t = *table;
+	t.data = &tmp;
+	t.maxlen = sizeof(unsigned long);
+	ret = proc_doulongvec_minmax(&t, write, buffer, length, ppos);
 	if (ret)
 		goto out;
 
@@ -2789,6 +2844,7 @@ int hugetlb_overcommit_handler(struct ctl_table *table, int write,
 	struct hstate *h = &default_hstate;
 	unsigned long tmp;
 	int ret;
+	ctl_table_no_const hugetlb_table;
 
 	if (!hugepages_supported())
 		return -EOPNOTSUPP;
@@ -2798,9 +2854,10 @@ int hugetlb_overcommit_handler(struct ctl_table *table, int write,
 	if (write && hstate_is_gigantic(h))
 		return -EINVAL;
 
-	table->data = &tmp;
-	table->maxlen = sizeof(unsigned long);
-	ret = proc_doulongvec_minmax(table, write, buffer, length, ppos);
+	hugetlb_table = *table;
+	hugetlb_table.data = &tmp;
+	hugetlb_table.maxlen = sizeof(unsigned long);
+	ret = proc_doulongvec_minmax(&hugetlb_table, write, buffer, length, ppos);
 	if (ret)
 		goto out;
 
@@ -3306,6 +3363,27 @@ static void unmap_ref_private(struct mm_struct *mm, struct vm_area_struct *vma,
 	i_mmap_unlock_write(mapping);
 }
 
+#ifdef CONFIG_PAX_SEGMEXEC
+static void pax_mirror_huge_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m)
+{
+	struct mm_struct *mm = vma->vm_mm;
+	struct vm_area_struct *vma_m;
+	unsigned long address_m;
+	pte_t *ptep_m;
+
+	vma_m = pax_find_mirror_vma(vma);
+	if (!vma_m)
+		return;
+
+	BUG_ON(address >= SEGMEXEC_TASK_SIZE);
+	address_m = address + SEGMEXEC_TASK_SIZE;
+	ptep_m = huge_pte_offset(mm, address_m & HPAGE_MASK);
+	get_page(page_m);
+	hugepage_add_anon_rmap(page_m, vma_m, address_m);
+	set_huge_pte_at(mm, address_m, ptep_m, make_huge_pte(vma_m, page_m, 0));
+}
+#endif
+
 /*
  * Hugetlb_cow() should be called with page lock of the original hugepage held.
  * Called with hugetlb_instantiation_mutex held and pte_page locked so we
@@ -3419,6 +3497,11 @@ retry_avoidcopy:
 				make_huge_pte(vma, new_page, 1));
 		page_remove_rmap(old_page, true);
 		hugepage_add_new_anon_rmap(new_page, vma, address);
+
+#ifdef CONFIG_PAX_SEGMEXEC
+		pax_mirror_huge_pte(vma, address, new_page);
+#endif
+
 		/* Make the old page be freed below */
 		new_page = old_page;
 	}
@@ -3592,6 +3675,10 @@ retry:
 				&& (vma->vm_flags & VM_SHARED)));
 	set_huge_pte_at(mm, address, ptep, new_pte);
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	pax_mirror_huge_pte(vma, address, page);
+#endif
+
 	hugetlb_count_add(pages_per_huge_page(h), mm);
 	if ((flags & FAULT_FLAG_WRITE) && !(vma->vm_flags & VM_SHARED)) {
 		/* Optimization, do the COW without a second fault */
@@ -3660,6 +3747,10 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 	struct address_space *mapping;
 	int need_wait_lock = 0;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	struct vm_area_struct *vma_m;
+#endif
+
 	address &= huge_page_mask(h);
 
 	ptep = huge_pte_offset(mm, address);
@@ -3677,6 +3768,26 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 			return VM_FAULT_OOM;
 	}
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	vma_m = pax_find_mirror_vma(vma);
+	if (vma_m) {
+		unsigned long address_m;
+
+		if (vma->vm_start > vma_m->vm_start) {
+			address_m = address;
+			address -= SEGMEXEC_TASK_SIZE;
+			vma = vma_m;
+			h = hstate_vma(vma);
+		} else
+			address_m = address + SEGMEXEC_TASK_SIZE;
+
+		if (!huge_pte_alloc(mm, address_m, huge_page_size(h)))
+			return VM_FAULT_OOM;
+		address_m &= HPAGE_MASK;
+		unmap_hugepage_range(vma, address_m, address_m + HPAGE_SIZE, NULL);
+	}
+#endif
+
 	mapping = vma->vm_file->f_mapping;
 	idx = vma_hugecache_offset(h, vma, address);
 
diff --git a/mm/hugetlb_cgroup.c b/mm/hugetlb_cgroup.c
index d8fb10d..1c74822 100644
--- a/mm/hugetlb_cgroup.c
+++ b/mm/hugetlb_cgroup.c
@@ -27,7 +27,6 @@ struct hugetlb_cgroup {
 	struct page_counter hugepage[HUGE_MAX_HSTATE];
 };
 
-#define MEMFILE_PRIVATE(x, val)	(((x) << 16) | (val))
 #define MEMFILE_IDX(val)	(((val) >> 16) & 0xffff)
 #define MEMFILE_ATTR(val)	((val) & 0xffff)
 
@@ -238,14 +237,7 @@ void hugetlb_cgroup_uncharge_cgroup(int idx, unsigned long nr_pages,
 	return;
 }
 
-enum {
-	RES_USAGE,
-	RES_LIMIT,
-	RES_MAX_USAGE,
-	RES_FAILCNT,
-};
-
-static u64 hugetlb_cgroup_read_u64(struct cgroup_subsys_state *css,
+u64 hugetlb_cgroup_read_u64(struct cgroup_subsys_state *css,
 				   struct cftype *cft)
 {
 	struct page_counter *counter;
@@ -269,7 +261,7 @@ static u64 hugetlb_cgroup_read_u64(struct cgroup_subsys_state *css,
 
 static DEFINE_MUTEX(hugetlb_limit_mutex);
 
-static ssize_t hugetlb_cgroup_write(struct kernfs_open_file *of,
+ssize_t hugetlb_cgroup_write(struct kernfs_open_file *of,
 				    char *buf, size_t nbytes, loff_t off)
 {
 	int ret, idx;
@@ -299,7 +291,7 @@ static ssize_t hugetlb_cgroup_write(struct kernfs_open_file *of,
 	return ret ?: nbytes;
 }
 
-static ssize_t hugetlb_cgroup_reset(struct kernfs_open_file *of,
+ssize_t hugetlb_cgroup_reset(struct kernfs_open_file *of,
 				    char *buf, size_t nbytes, loff_t off)
 {
 	int ret = 0;
@@ -335,46 +327,26 @@ static char *mem_fmt(char *buf, int size, unsigned long hsize)
 
 static void __init __hugetlb_cgroup_file_init(int idx)
 {
+	char names[4][MAX_CFTYPE_NAME];
 	char buf[32];
-	struct cftype *cft;
 	struct hstate *h = &hstates[idx];
 
 	/* format the size */
 	mem_fmt(buf, 32, huge_page_size(h));
-
-	/* Add the limit file */
-	cft = &h->cgroup_files[0];
-	snprintf(cft->name, MAX_CFTYPE_NAME, "%s.limit_in_bytes", buf);
-	cft->private = MEMFILE_PRIVATE(idx, RES_LIMIT);
-	cft->read_u64 = hugetlb_cgroup_read_u64;
-	cft->write = hugetlb_cgroup_write;
-
-	/* Add the usage file */
-	cft = &h->cgroup_files[1];
-	snprintf(cft->name, MAX_CFTYPE_NAME, "%s.usage_in_bytes", buf);
-	cft->private = MEMFILE_PRIVATE(idx, RES_USAGE);
-	cft->read_u64 = hugetlb_cgroup_read_u64;
-
-	/* Add the MAX usage file */
-	cft = &h->cgroup_files[2];
-	snprintf(cft->name, MAX_CFTYPE_NAME, "%s.max_usage_in_bytes", buf);
-	cft->private = MEMFILE_PRIVATE(idx, RES_MAX_USAGE);
-	cft->write = hugetlb_cgroup_reset;
-	cft->read_u64 = hugetlb_cgroup_read_u64;
-
-	/* Add the failcntfile */
-	cft = &h->cgroup_files[3];
-	snprintf(cft->name, MAX_CFTYPE_NAME, "%s.failcnt", buf);
-	cft->private  = MEMFILE_PRIVATE(idx, RES_FAILCNT);
-	cft->write = hugetlb_cgroup_reset;
-	cft->read_u64 = hugetlb_cgroup_read_u64;
-
-	/* NULL terminate the last cft */
-	cft = &h->cgroup_files[4];
-	memset(cft, 0, sizeof(*cft));
+	snprintf(names[0], MAX_CFTYPE_NAME, "%s.limit_in_bytes", buf);
+	snprintf(names[1], MAX_CFTYPE_NAME, "%s.usage_in_bytes", buf);
+	snprintf(names[2], MAX_CFTYPE_NAME, "%s.max_usage_in_bytes", buf);
+	snprintf(names[3], MAX_CFTYPE_NAME, "%s.failcnt", buf);
+
+	pax_open_kernel();
+	strncpy((void *)(*h->cgroup_files)[0].name, names[0], MAX_CFTYPE_NAME);
+	strncpy((void *)(*h->cgroup_files)[1].name, names[1], MAX_CFTYPE_NAME);
+	strncpy((void *)(*h->cgroup_files)[2].name, names[2], MAX_CFTYPE_NAME);
+	strncpy((void *)(*h->cgroup_files)[3].name, names[3], MAX_CFTYPE_NAME);
+	pax_close_kernel();
 
 	WARN_ON(cgroup_add_legacy_cftypes(&hugetlb_cgrp_subsys,
-					  h->cgroup_files));
+					  *h->cgroup_files));
 }
 
 void __init hugetlb_cgroup_file_init(void)
diff --git a/mm/internal.h b/mm/internal.h
index b79abb6..8b28234 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -147,6 +147,7 @@ static inline struct page *pageblock_pfn_to_page(unsigned long start_pfn,
 extern int __isolate_free_page(struct page *page, unsigned int order);
 extern void __free_pages_bootmem(struct page *page, unsigned long pfn,
 					unsigned int order);
+extern void free_compound_page(struct page *page);
 extern void prep_compound_page(struct page *page, unsigned int order);
 extern int user_min_free_kbytes;
 
@@ -247,7 +248,7 @@ static inline bool is_exec_mapping(vm_flags_t flags)
  */
 static inline bool is_stack_mapping(vm_flags_t flags)
 {
-	return (flags & VM_STACK) == VM_STACK;
+	return flags & (VM_GROWSUP | VM_GROWSDOWN);
 }
 
 /*
diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index e642992..b6128bc 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -365,7 +365,7 @@ static void print_unreferenced(struct seq_file *seq,
 
 	for (i = 0; i < object->trace_len; i++) {
 		void *ptr = (void *)object->trace[i];
-		seq_printf(seq, "    [<%p>] %pS\n", ptr, ptr);
+		seq_printf(seq, "    [<%pP>] %pA\n", ptr, ptr);
 	}
 }
 
@@ -1955,7 +1955,7 @@ static int __init kmemleak_late_init(void)
 		return -ENOMEM;
 	}
 
-	dentry = debugfs_create_file("kmemleak", S_IRUGO, NULL, NULL,
+	dentry = debugfs_create_file("kmemleak", S_IRUSR, NULL, NULL,
 				     &kmemleak_fops);
 	if (!dentry)
 		pr_warn("Failed to create the debugfs kmemleak file\n");
diff --git a/mm/maccess.c b/mm/maccess.c
index d159b1c..7655796 100644
--- a/mm/maccess.c
+++ b/mm/maccess.c
@@ -28,12 +28,12 @@ long __probe_kernel_read(void *dst, const void *src, size_t size)
 	long ret;
 	mm_segment_t old_fs = get_fs();
 
-	set_fs(KERNEL_DS);
 	pagefault_disable();
+	set_fs(KERNEL_DS);
 	ret = __copy_from_user_inatomic(dst,
-			(__force const void __user *)src, size);
-	pagefault_enable();
+			(const void __force_user *)src, size);
 	set_fs(old_fs);
+	pagefault_enable();
 
 	return ret ? -EFAULT : 0;
 }
@@ -56,11 +56,11 @@ long __probe_kernel_write(void *dst, const void *src, size_t size)
 	long ret;
 	mm_segment_t old_fs = get_fs();
 
-	set_fs(KERNEL_DS);
 	pagefault_disable();
-	ret = __copy_to_user_inatomic((__force void __user *)dst, src, size);
-	pagefault_enable();
+	set_fs(KERNEL_DS);
+	ret = __copy_to_user_inatomic((void __force_user *)dst, src, size);
 	set_fs(old_fs);
+	pagefault_enable();
 
 	return ret ? -EFAULT : 0;
 }
diff --git a/mm/madvise.c b/mm/madvise.c
index 07427d3..05f1d57 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -56,6 +56,10 @@ static long madvise_behavior(struct vm_area_struct *vma,
 	pgoff_t pgoff;
 	unsigned long new_flags = vma->vm_flags;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	struct vm_area_struct *vma_m;
+#endif
+
 	switch (behavior) {
 	case MADV_NORMAL:
 		new_flags = new_flags & ~VM_RAND_READ & ~VM_SEQ_READ;
@@ -132,6 +136,13 @@ success:
 	/*
 	 * vm_flags is protected by the mmap_sem held in write mode.
 	 */
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	vma_m = pax_find_mirror_vma(vma);
+	if (vma_m)
+		vma_m->vm_flags = new_flags & ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT);
+#endif
+
 	vma->vm_flags = new_flags;
 
 out:
@@ -471,11 +482,27 @@ static long madvise_dontneed(struct vm_area_struct *vma,
 			     struct vm_area_struct **prev,
 			     unsigned long start, unsigned long end)
 {
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	struct vm_area_struct *vma_m;
+#endif
+
 	*prev = vma;
 	if (vma->vm_flags & (VM_LOCKED|VM_HUGETLB|VM_PFNMAP))
 		return -EINVAL;
 
 	zap_page_range(vma, start, end - start, NULL);
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	vma_m = pax_find_mirror_vma(vma);
+	if (vma_m) {
+		if (vma_m->vm_flags & (VM_LOCKED|VM_HUGETLB|VM_PFNMAP))
+			return -EINVAL;
+
+		zap_page_range(vma_m, start + SEGMEXEC_TASK_SIZE, end - start, NULL);
+	}
+#endif
+
 	return 0;
 }
 
@@ -702,6 +729,16 @@ SYSCALL_DEFINE3(madvise, unsigned long, start, size_t, len_in, int, behavior)
 	if (end < start)
 		return error;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (current->mm->pax_flags & MF_PAX_SEGMEXEC) {
+		if (end > SEGMEXEC_TASK_SIZE)
+			return error;
+	} else
+#endif
+
+	if (end > TASK_SIZE)
+		return error;
+
 	error = 0;
 	if (end == start)
 		return error;
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index a2e79b8..66b4b808 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -723,7 +723,7 @@ static void memcg_check_events(struct mem_cgroup *memcg, struct page *page)
 			mem_cgroup_update_tree(memcg, page);
 #if MAX_NUMNODES > 1
 		if (unlikely(do_numainfo))
-			atomic_inc(&memcg->numainfo_events);
+			atomic64_inc(&memcg->numainfo_events);
 #endif
 	}
 }
@@ -1352,7 +1352,7 @@ static void mem_cgroup_may_update_nodemask(struct mem_cgroup *memcg)
 	 * numainfo_events > 0 means there was at least NUMAINFO_EVENTS_TARGET
 	 * pagein/pageout changes since the last update.
 	 */
-	if (!atomic_read(&memcg->numainfo_events))
+	if (!atomic64_read(&memcg->numainfo_events))
 		return;
 	if (atomic_inc_return(&memcg->numainfo_updating) > 1)
 		return;
@@ -1366,7 +1366,7 @@ static void mem_cgroup_may_update_nodemask(struct mem_cgroup *memcg)
 			node_clear(nid, memcg->scan_nodes);
 	}
 
-	atomic_set(&memcg->numainfo_events, 0);
+	atomic64_set(&memcg->numainfo_events, 0);
 	atomic_set(&memcg->numainfo_updating, 0);
 }
 
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index ca5acee..bee974a 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -64,7 +64,7 @@ int sysctl_memory_failure_early_kill __read_mostly = 0;
 
 int sysctl_memory_failure_recovery __read_mostly = 1;
 
-atomic_long_t num_poisoned_pages __read_mostly = ATOMIC_LONG_INIT(0);
+atomic_long_unchecked_t num_poisoned_pages __read_mostly = ATOMIC_LONG_INIT(0);
 
 #if defined(CONFIG_HWPOISON_INJECT) || defined(CONFIG_HWPOISON_INJECT_MODULE)
 
@@ -188,7 +188,7 @@ static int kill_proc(struct task_struct *t, unsigned long addr, int trapno,
 	       pfn, t->comm, t->pid);
 	si.si_signo = SIGBUS;
 	si.si_errno = 0;
-	si.si_addr = (void *)addr;
+	si.si_addr = (void __user *)addr;
 #ifdef __ARCH_SI_TRAPNO
 	si.si_trapno = trapno;
 #endif
@@ -779,7 +779,7 @@ static struct page_state {
 	unsigned long res;
 	enum mf_action_page_type type;
 	int (*action)(struct page *p, unsigned long pfn);
-} error_states[] = {
+} __do_const error_states[] = {
 	{ reserved,	reserved,	MF_MSG_KERNEL,	me_kernel },
 	/*
 	 * free pages are specially detected outside this table:
diff --git a/mm/memory.c b/mm/memory.c
index 07493e3..052aa0f 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -417,6 +417,7 @@ static inline void free_pmd_range(struct mmu_gather *tlb, pud_t *pud,
 		free_pte_range(tlb, pmd, addr);
 	} while (pmd++, addr = next, addr != end);
 
+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_PER_CPU_PGD)
 	start &= PUD_MASK;
 	if (start < floor)
 		return;
@@ -432,6 +433,7 @@ static inline void free_pmd_range(struct mmu_gather *tlb, pud_t *pud,
 	pud_clear(pud);
 	pmd_free_tlb(tlb, pmd, start);
 	mm_dec_nr_pmds(tlb->mm);
+#endif
 }
 
 static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
@@ -451,6 +453,7 @@ static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
 		free_pmd_range(tlb, pud, addr, next, floor, ceiling);
 	} while (pud++, addr = next, addr != end);
 
+#if !defined(CONFIG_X86_64) || !defined(CONFIG_PAX_PER_CPU_PGD)
 	start &= PGDIR_MASK;
 	if (start < floor)
 		return;
@@ -465,6 +468,8 @@ static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
 	pud = pud_offset(pgd, start);
 	pgd_clear(pgd);
 	pud_free_tlb(tlb, pud, start);
+#endif
+
 }
 
 /*
@@ -683,7 +688,7 @@ static void print_bad_pte(struct vm_area_struct *vma, unsigned long addr,
 	/*
 	 * Choose text because data symbols depend on CONFIG_KALLSYMS_ALL=y
 	 */
-	pr_alert("file:%pD fault:%pf mmap:%pf readpage:%pf\n",
+	pr_alert("file:%pD fault:%pX mmap:%pX readpage:%pX\n",
 		 vma->vm_file,
 		 vma->vm_ops ? vma->vm_ops->fault : NULL,
 		 vma->vm_file ? vma->vm_file->f_op->mmap : NULL,
@@ -1481,6 +1486,10 @@ static int insert_page(struct vm_area_struct *vma, unsigned long addr,
 	page_add_file_rmap(page);
 	set_pte_at(mm, addr, pte, mk_pte(page, prot));
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	pax_mirror_file_pte(vma, addr, page, ptl);
+#endif
+
 	retval = 0;
 	pte_unmap_unlock(pte, ptl);
 	return retval;
@@ -1525,9 +1534,21 @@ int vm_insert_page(struct vm_area_struct *vma, unsigned long addr,
 	if (!page_count(page))
 		return -EINVAL;
 	if (!(vma->vm_flags & VM_MIXEDMAP)) {
+
+#ifdef CONFIG_PAX_SEGMEXEC
+		struct vm_area_struct *vma_m;
+#endif
+
 		BUG_ON(down_read_trylock(&vma->vm_mm->mmap_sem));
 		BUG_ON(vma->vm_flags & VM_PFNMAP);
 		vma->vm_flags |= VM_MIXEDMAP;
+
+#ifdef CONFIG_PAX_SEGMEXEC
+		vma_m = pax_find_mirror_vma(vma);
+		if (vma_m)
+			vma_m->vm_flags |= VM_MIXEDMAP;
+#endif
+
 	}
 	return insert_page(vma, addr, page, vma->vm_page_prot);
 }
@@ -1634,6 +1655,7 @@ int vm_insert_mixed(struct vm_area_struct *vma, unsigned long addr,
 			pfn_t pfn)
 {
 	BUG_ON(!(vma->vm_flags & VM_MIXEDMAP));
+	BUG_ON(vma->vm_mirror);
 
 	if (addr < vma->vm_start || addr >= vma->vm_end)
 		return -EFAULT;
@@ -1886,7 +1908,9 @@ static int apply_to_pmd_range(struct mm_struct *mm, pud_t *pud,
 
 	BUG_ON(pud_huge(*pud));
 
-	pmd = pmd_alloc(mm, pud, addr);
+	pmd = (mm == &init_mm) ?
+		pmd_alloc_kernel(mm, pud, addr) :
+		pmd_alloc(mm, pud, addr);
 	if (!pmd)
 		return -ENOMEM;
 	do {
@@ -1906,7 +1930,9 @@ static int apply_to_pud_range(struct mm_struct *mm, pgd_t *pgd,
 	unsigned long next;
 	int err;
 
-	pud = pud_alloc(mm, pgd, addr);
+	pud = (mm == &init_mm) ?
+		pud_alloc_kernel(mm, pgd, addr) :
+		pud_alloc(mm, pgd, addr);
 	if (!pud)
 		return -ENOMEM;
 	do {
@@ -2104,6 +2130,196 @@ static inline int wp_page_reuse(struct mm_struct *mm,
 	return VM_FAULT_WRITE;
 }
 
+#ifdef CONFIG_PAX_SEGMEXEC
+static void pax_unmap_mirror_pte(struct vm_area_struct *vma, unsigned long address, pmd_t *pmd)
+{
+	struct mm_struct *mm = vma->vm_mm;
+	spinlock_t *ptl;
+	pte_t *pte, entry;
+
+	pte = pte_offset_map_lock(mm, pmd, address, &ptl);
+	entry = *pte;
+	if (pte_none(entry))
+		;
+	else if (!pte_present(entry)) {
+		swp_entry_t swapentry;
+
+		swapentry = pte_to_swp_entry(entry);
+		if (!non_swap_entry(swapentry))
+			dec_mm_counter_fast(mm, MM_SWAPENTS);
+		else if (is_migration_entry(swapentry)) {
+			if (PageAnon(migration_entry_to_page(swapentry)))
+				dec_mm_counter_fast(mm, MM_ANONPAGES);
+			else
+				dec_mm_counter_fast(mm, MM_FILEPAGES);
+		}
+		free_swap_and_cache(swapentry);
+		pte_clear_not_present_full(mm, address, pte, 0);
+	} else {
+		struct page *page;
+
+		flush_cache_page(vma, address, pte_pfn(entry));
+		entry = ptep_clear_flush(vma, address, pte);
+		BUG_ON(pte_dirty(entry));
+		page = vm_normal_page(vma, address, entry);
+		if (page) {
+			update_hiwater_rss(mm);
+			if (PageAnon(page))
+				dec_mm_counter_fast(mm, MM_ANONPAGES);
+			else
+				dec_mm_counter_fast(mm, MM_FILEPAGES);
+			page_remove_rmap(page, false);
+			put_page(page);
+		}
+	}
+	pte_unmap_unlock(pte, ptl);
+}
+
+/* PaX: if vma is mirrored, synchronize the mirror's PTE
+ *
+ * the ptl of the lower mapped page is held on entry and is not released on exit
+ * or inside to ensure atomic changes to the PTE states (swapout, mremap, munmap, etc)
+ */
+static void pax_mirror_anon_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl)
+{
+	struct mm_struct *mm = vma->vm_mm;
+	unsigned long address_m;
+	spinlock_t *ptl_m;
+	struct vm_area_struct *vma_m;
+	pmd_t *pmd_m;
+	pte_t *pte_m, entry_m;
+
+	BUG_ON(!page_m || !PageAnon(page_m));
+
+	vma_m = pax_find_mirror_vma(vma);
+	if (!vma_m)
+		return;
+
+	BUG_ON(!PageLocked(page_m));
+	BUG_ON(address >= SEGMEXEC_TASK_SIZE);
+	address_m = address + SEGMEXEC_TASK_SIZE;
+	pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m);
+	pte_m = pte_offset_map(pmd_m, address_m);
+	ptl_m = pte_lockptr(mm, pmd_m);
+	if (ptl != ptl_m) {
+		spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING);
+		if (!pte_none(*pte_m))
+			goto out;
+	}
+
+	entry_m = pfn_pte(page_to_pfn(page_m), vma_m->vm_page_prot);
+	get_page(page_m);
+	page_add_anon_rmap(page_m, vma_m, address_m, false);
+	inc_mm_counter_fast(mm, MM_ANONPAGES);
+	set_pte_at(mm, address_m, pte_m, entry_m);
+	update_mmu_cache(vma_m, address_m, pte_m);
+out:
+	if (ptl != ptl_m)
+		spin_unlock(ptl_m);
+	pte_unmap(pte_m);
+	unlock_page(page_m);
+}
+
+void pax_mirror_file_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl)
+{
+	struct mm_struct *mm = vma->vm_mm;
+	unsigned long address_m;
+	spinlock_t *ptl_m;
+	struct vm_area_struct *vma_m;
+	pmd_t *pmd_m;
+	pte_t *pte_m, entry_m;
+
+	BUG_ON(!page_m || PageAnon(page_m));
+
+	vma_m = pax_find_mirror_vma(vma);
+	if (!vma_m)
+		return;
+
+	BUG_ON(address >= SEGMEXEC_TASK_SIZE);
+	address_m = address + SEGMEXEC_TASK_SIZE;
+	pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m);
+	pte_m = pte_offset_map(pmd_m, address_m);
+	ptl_m = pte_lockptr(mm, pmd_m);
+	if (ptl != ptl_m) {
+		spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING);
+		if (!pte_none(*pte_m))
+			goto out;
+	}
+
+	entry_m = pfn_pte(page_to_pfn(page_m), vma_m->vm_page_prot);
+	get_page(page_m);
+	page_add_file_rmap(page_m);
+	inc_mm_counter_fast(mm, MM_FILEPAGES);
+	set_pte_at(mm, address_m, pte_m, entry_m);
+	update_mmu_cache(vma_m, address_m, pte_m);
+out:
+	if (ptl != ptl_m)
+		spin_unlock(ptl_m);
+	pte_unmap(pte_m);
+}
+
+static void pax_mirror_pfn_pte(struct vm_area_struct *vma, unsigned long address, unsigned long pfn_m, spinlock_t *ptl)
+{
+	struct mm_struct *mm = vma->vm_mm;
+	unsigned long address_m;
+	spinlock_t *ptl_m;
+	struct vm_area_struct *vma_m;
+	pmd_t *pmd_m;
+	pte_t *pte_m, entry_m;
+
+	vma_m = pax_find_mirror_vma(vma);
+	if (!vma_m)
+		return;
+
+	BUG_ON(address >= SEGMEXEC_TASK_SIZE);
+	address_m = address + SEGMEXEC_TASK_SIZE;
+	pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m);
+	pte_m = pte_offset_map(pmd_m, address_m);
+	ptl_m = pte_lockptr(mm, pmd_m);
+	if (ptl != ptl_m) {
+		spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING);
+		if (!pte_none(*pte_m))
+			goto out;
+	}
+
+	entry_m = pfn_pte(pfn_m, vma_m->vm_page_prot);
+	set_pte_at(mm, address_m, pte_m, entry_m);
+out:
+	if (ptl != ptl_m)
+		spin_unlock(ptl_m);
+	pte_unmap(pte_m);
+}
+
+static void pax_mirror_pte(struct vm_area_struct *vma, unsigned long address, pte_t *pte, pmd_t *pmd, spinlock_t *ptl)
+{
+	struct page *page_m;
+	pte_t entry;
+
+	if (!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC))
+		goto out;
+
+	entry = *pte;
+	page_m  = vm_normal_page(vma, address, entry);
+	if (!page_m)
+	pax_mirror_pfn_pte(vma, address, pte_pfn(entry), ptl);
+	else if (PageAnon(page_m)) {
+		if (pax_find_mirror_vma(vma)) {
+			pte_unmap_unlock(pte, ptl);
+			lock_page(page_m);
+			pte = pte_offset_map_lock(vma->vm_mm, pmd, address, &ptl);
+			if (pte_same(entry, *pte))
+				pax_mirror_anon_pte(vma, address, page_m, ptl);
+			else
+				unlock_page(page_m);
+		}
+	} else
+		pax_mirror_file_pte(vma, address, page_m, ptl);
+
+out:
+	pte_unmap_unlock(pte, ptl);
+}
+#endif
+
 /*
  * Handle the case of a page which we actually need to copy to a new page.
  *
@@ -2158,6 +2374,12 @@ static int wp_page_copy(struct mm_struct *mm, struct vm_area_struct *vma,
 	 */
 	page_table = pte_offset_map_lock(mm, pmd, address, &ptl);
 	if (likely(pte_same(*page_table, orig_pte))) {
+
+#ifdef CONFIG_PAX_SEGMEXEC
+		if (pax_find_mirror_vma(vma))
+			BUG_ON(!trylock_page(new_page));
+#endif
+
 		if (old_page) {
 			if (!PageAnon(old_page)) {
 				dec_mm_counter_fast(mm,
@@ -2213,6 +2435,10 @@ static int wp_page_copy(struct mm_struct *mm, struct vm_area_struct *vma,
 			page_remove_rmap(old_page, false);
 		}
 
+#ifdef CONFIG_PAX_SEGMEXEC
+		pax_mirror_anon_pte(vma, address, new_page, ptl);
+#endif
+
 		/* Free the old page.. */
 		new_page = old_page;
 		page_copied = 1;
@@ -2646,6 +2872,11 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	if (mem_cgroup_swap_full(page) ||
 	    (vma->vm_flags & VM_LOCKED) || PageMlocked(page))
 		try_to_free_swap(page);
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if ((flags & FAULT_FLAG_WRITE) || !pax_find_mirror_vma(vma))
+#endif
+
 	unlock_page(page);
 	if (page != swapcache) {
 		/*
@@ -2669,6 +2900,11 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
 
 	/* No need to invalidate - it was non-present before */
 	update_mmu_cache(vma, address, page_table);
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	pax_mirror_anon_pte(vma, address, page, ptl);
+#endif
+
 unlock:
 	pte_unmap_unlock(page_table, ptl);
 out:
@@ -2688,40 +2924,6 @@ out_release:
 }
 
 /*
- * This is like a special single-page "expand_{down|up}wards()",
- * except we must first make sure that 'address{-|+}PAGE_SIZE'
- * doesn't hit another vma.
- */
-static inline int check_stack_guard_page(struct vm_area_struct *vma, unsigned long address)
-{
-	address &= PAGE_MASK;
-	if ((vma->vm_flags & VM_GROWSDOWN) && address == vma->vm_start) {
-		struct vm_area_struct *prev = vma->vm_prev;
-
-		/*
-		 * Is there a mapping abutting this one below?
-		 *
-		 * That's only ok if it's the same stack mapping
-		 * that has gotten split..
-		 */
-		if (prev && prev->vm_end == address)
-			return prev->vm_flags & VM_GROWSDOWN ? 0 : -ENOMEM;
-
-		return expand_downwards(vma, address - PAGE_SIZE);
-	}
-	if ((vma->vm_flags & VM_GROWSUP) && address + PAGE_SIZE == vma->vm_end) {
-		struct vm_area_struct *next = vma->vm_next;
-
-		/* As VM_GROWSDOWN but s/below/above/ */
-		if (next && next->vm_start == address + PAGE_SIZE)
-			return next->vm_flags & VM_GROWSUP ? 0 : -ENOMEM;
-
-		return expand_upwards(vma, address + PAGE_SIZE);
-	}
-	return 0;
-}
-
-/*
  * We enter with non-exclusive mmap_sem (to exclude vma changes,
  * but allow concurrent faults), and pte mapped but not yet locked.
  * We return with mmap_sem still held, but pte unmapped and unlocked.
@@ -2731,25 +2933,22 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma,
 		unsigned int flags)
 {
 	struct mem_cgroup *memcg;
-	struct page *page;
+	struct page *page = NULL;
 	spinlock_t *ptl;
 	pte_t entry;
 
-	pte_unmap(page_table);
-
 	/* File mapping without ->vm_ops ? */
-	if (vma->vm_flags & VM_SHARED)
+	if (vma->vm_flags & VM_SHARED) {
+		pte_unmap(page_table);
 		return VM_FAULT_SIGBUS;
-
-	/* Check if we need to add a guard page to the stack */
-	if (check_stack_guard_page(vma, address) < 0)
-		return VM_FAULT_SIGSEGV;
+	}
 
 	/* Use the zero-page for reads */
 	if (!(flags & FAULT_FLAG_WRITE) && !mm_forbids_zeropage(mm)) {
 		entry = pte_mkspecial(pfn_pte(my_zero_pfn(address),
 						vma->vm_page_prot));
-		page_table = pte_offset_map_lock(mm, pmd, address, &ptl);
+		ptl = pte_lockptr(mm, pmd);
+		spin_lock(ptl);
 		if (!pte_none(*page_table))
 			goto unlock;
 		/* Deliver the page fault to userland, check inside PT lock */
@@ -2762,6 +2961,8 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	}
 
 	/* Allocate our own private page. */
+	pte_unmap(page_table);
+
 	if (unlikely(anon_vma_prepare(vma)))
 		goto oom;
 	page = alloc_zeroed_user_highpage_movable(vma, address);
@@ -2795,6 +2996,11 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma,
 					VM_UFFD_MISSING);
 	}
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (pax_find_mirror_vma(vma))
+		BUG_ON(!trylock_page(page));
+#endif
+
 	inc_mm_counter_fast(mm, MM_ANONPAGES);
 	page_add_new_anon_rmap(page, vma, address, false);
 	mem_cgroup_commit_charge(page, memcg, false, false);
@@ -2804,6 +3010,12 @@ setpte:
 
 	/* No need to invalidate - it was non-present before */
 	update_mmu_cache(vma, address, page_table);
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (page)
+		pax_mirror_anon_pte(vma, address, page, ptl);
+#endif
+
 unlock:
 	pte_unmap_unlock(page_table, ptl);
 	return 0;
@@ -3038,6 +3250,11 @@ static int do_read_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 		return ret;
 	}
 	do_set_pte(vma, address, fault_page, pte, false, false);
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	pax_mirror_file_pte(vma, address, fault_page, ptl);
+#endif
+
 	unlock_page(fault_page);
 unlock_out:
 	pte_unmap_unlock(pte, ptl);
@@ -3089,7 +3306,18 @@ static int do_cow_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 		}
 		goto uncharge_out;
 	}
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (pax_find_mirror_vma(vma))
+		BUG_ON(!trylock_page(new_page));
+#endif
+
 	do_set_pte(vma, address, new_page, pte, true, true);
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	pax_mirror_anon_pte(vma, address, new_page, ptl);
+#endif
+
 	mem_cgroup_commit_charge(new_page, memcg, false, false);
 	lru_cache_add_active_or_unevictable(new_page, vma);
 	pte_unmap_unlock(pte, ptl);
@@ -3147,6 +3375,11 @@ static int do_shared_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 		return ret;
 	}
 	do_set_pte(vma, address, fault_page, pte, true, false);
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	pax_mirror_file_pte(vma, address, fault_page, ptl);
+#endif
+
 	pte_unmap_unlock(pte, ptl);
 
 	if (set_page_dirty(fault_page))
@@ -3398,6 +3631,12 @@ static int handle_pte_fault(struct mm_struct *mm,
 		if (flags & FAULT_FLAG_WRITE)
 			flush_tlb_fix_spurious_fault(vma, address);
 	}
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	pax_mirror_pte(vma, address, pte, pmd, ptl);
+	return 0;
+#endif
+
 unlock:
 	pte_unmap_unlock(pte, ptl);
 	return 0;
@@ -3417,6 +3656,10 @@ static int __handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 	pmd_t *pmd;
 	pte_t *pte;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	struct vm_area_struct *vma_m;
+#endif
+
 	if (!arch_vma_access_permitted(vma, flags & FAULT_FLAG_WRITE,
 					    flags & FAULT_FLAG_INSTRUCTION,
 					    flags & FAULT_FLAG_REMOTE))
@@ -3425,6 +3668,34 @@ static int __handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 	if (unlikely(is_vm_hugetlb_page(vma)))
 		return hugetlb_fault(mm, vma, address, flags);
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	vma_m = pax_find_mirror_vma(vma);
+	if (vma_m) {
+		unsigned long address_m;
+		pgd_t *pgd_m;
+		pud_t *pud_m;
+		pmd_t *pmd_m;
+
+		if (vma->vm_start > vma_m->vm_start) {
+			address_m = address;
+			address -= SEGMEXEC_TASK_SIZE;
+			vma = vma_m;
+		} else
+			address_m = address + SEGMEXEC_TASK_SIZE;
+
+		pgd_m = pgd_offset(mm, address_m);
+		pud_m = pud_alloc(mm, pgd_m, address_m);
+		if (!pud_m)
+			return VM_FAULT_OOM;
+		pmd_m = pmd_alloc(mm, pud_m, address_m);
+		if (!pmd_m)
+			return VM_FAULT_OOM;
+		if (!pmd_present(*pmd_m) && __pte_alloc(mm, pmd_m, address_m))
+			return VM_FAULT_OOM;
+		pax_unmap_mirror_pte(vma_m, address_m, pmd_m);
+	}
+#endif
+
 	pgd = pgd_offset(mm, address);
 	pud = pud_alloc(mm, pgd, address);
 	if (!pud)
@@ -3557,6 +3828,23 @@ int __pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
 	spin_unlock(&mm->page_table_lock);
 	return 0;
 }
+
+int __pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
+{
+	pud_t *new = pud_alloc_one(mm, address);
+	if (!new)
+		return -ENOMEM;
+
+	smp_wmb(); /* See comment in __pte_alloc */
+
+	spin_lock(&mm->page_table_lock);
+	if (pgd_present(*pgd))		/* Another has populated it */
+		pud_free(mm, new);
+	else
+		pgd_populate_kernel(mm, pgd, new);
+	spin_unlock(&mm->page_table_lock);
+	return 0;
+}
 #endif /* __PAGETABLE_PUD_FOLDED */
 
 #ifndef __PAGETABLE_PMD_FOLDED
@@ -3589,6 +3877,32 @@ int __pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address)
 	spin_unlock(&mm->page_table_lock);
 	return 0;
 }
+
+int __pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud, unsigned long address)
+{
+	pmd_t *new = pmd_alloc_one(mm, address);
+	if (!new)
+		return -ENOMEM;
+
+	smp_wmb(); /* See comment in __pte_alloc */
+
+	spin_lock(&mm->page_table_lock);
+#ifndef __ARCH_HAS_4LEVEL_HACK
+	if (!pud_present(*pud)) {
+		mm_inc_nr_pmds(mm);
+		pud_populate_kernel(mm, pud, new);
+	} else	/* Another has populated it */
+		pmd_free(mm, new);
+#else
+	if (!pgd_present(*pud)) {
+		mm_inc_nr_pmds(mm);
+		pgd_populate_kernel(mm, pud, new);
+	} else /* Another has populated it */
+		pmd_free(mm, new);
+#endif /* __ARCH_HAS_4LEVEL_HACK */
+	spin_unlock(&mm->page_table_lock);
+	return 0;
+}
 #endif /* __PAGETABLE_PMD_FOLDED */
 
 static int __follow_pte(struct mm_struct *mm, unsigned long address,
@@ -3698,8 +4012,8 @@ out:
 	return ret;
 }
 
-int generic_access_phys(struct vm_area_struct *vma, unsigned long addr,
-			void *buf, int len, int write)
+ssize_t generic_access_phys(struct vm_area_struct *vma, unsigned long addr,
+			void *buf, size_t len, int write)
 {
 	resource_size_t phys_addr;
 	unsigned long prot = 0;
@@ -3725,8 +4039,8 @@ EXPORT_SYMBOL_GPL(generic_access_phys);
  * Access another process' address space as given in mm.  If non-NULL, use the
  * given task for page fault accounting.
  */
-static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
-		unsigned long addr, void *buf, int len, int write)
+static ssize_t __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
+		unsigned long addr, void *buf, size_t len, int write)
 {
 	struct vm_area_struct *vma;
 	void *old_buf = buf;
@@ -3734,7 +4048,7 @@ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
 	down_read(&mm->mmap_sem);
 	/* ignore errors, just check how much was successfully transferred */
 	while (len) {
-		int bytes, ret, offset;
+		ssize_t bytes, ret, offset;
 		void *maddr;
 		struct page *page = NULL;
 
@@ -3795,8 +4109,8 @@ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
  *
  * The caller must hold a reference on @mm.
  */
-int access_remote_vm(struct mm_struct *mm, unsigned long addr,
-		void *buf, int len, int write)
+ssize_t access_remote_vm(struct mm_struct *mm, unsigned long addr,
+		void *buf, size_t len, int write)
 {
 	return __access_remote_vm(NULL, mm, addr, buf, len, write);
 }
@@ -3806,11 +4120,11 @@ int access_remote_vm(struct mm_struct *mm, unsigned long addr,
  * Source/target buffer must be kernel space,
  * Do not walk the page table directly, use get_user_pages
  */
-int access_process_vm(struct task_struct *tsk, unsigned long addr,
-		void *buf, int len, int write)
+ssize_t access_process_vm(struct task_struct *tsk, unsigned long addr,
+		void *buf, size_t len, int write)
 {
 	struct mm_struct *mm;
-	int ret;
+	ssize_t ret;
 
 	mm = get_task_mm(tsk);
 	if (!mm)
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 36cc01b..d862cd8 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -733,6 +733,10 @@ static int mbind_range(struct mm_struct *mm, unsigned long start,
 	unsigned long vmstart;
 	unsigned long vmend;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	struct vm_area_struct *vma_m;
+#endif
+
 	vma = find_vma(mm, start);
 	if (!vma || vma->vm_start > start)
 		return -EFAULT;
@@ -776,6 +780,16 @@ static int mbind_range(struct mm_struct *mm, unsigned long start,
 		err = vma_replace_policy(vma, new_pol);
 		if (err)
 			goto out;
+
+#ifdef CONFIG_PAX_SEGMEXEC
+		vma_m = pax_find_mirror_vma(vma);
+		if (vma_m) {
+			err = vma_replace_policy(vma_m, new_pol);
+			if (err)
+				goto out;
+		}
+#endif
+
 	}
 
  out:
@@ -1191,6 +1205,17 @@ static long do_mbind(unsigned long start, unsigned long len,
 
 	if (end < start)
 		return -EINVAL;
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (mm->pax_flags & MF_PAX_SEGMEXEC) {
+		if (end > SEGMEXEC_TASK_SIZE)
+			return -EINVAL;
+	} else
+#endif
+
+	if (end > TASK_SIZE)
+		return -EINVAL;
+
 	if (end == start)
 		return 0;
 
@@ -1416,8 +1441,7 @@ SYSCALL_DEFINE4(migrate_pages, pid_t, pid, unsigned long, maxnode,
 	 */
 	tcred = __task_cred(task);
 	if (!uid_eq(cred->euid, tcred->suid) && !uid_eq(cred->euid, tcred->uid) &&
-	    !uid_eq(cred->uid,  tcred->suid) && !uid_eq(cred->uid,  tcred->uid) &&
-	    !capable(CAP_SYS_NICE)) {
+	    !uid_eq(cred->uid,  tcred->suid) && !capable(CAP_SYS_NICE)) {
 		rcu_read_unlock();
 		err = -EPERM;
 		goto out_put;
@@ -1448,6 +1472,15 @@ SYSCALL_DEFINE4(migrate_pages, pid_t, pid, unsigned long, maxnode,
 		goto out;
 	}
 
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	if (mm != current->mm &&
+	    (mm->pax_flags & MF_PAX_RANDMMAP || mm->pax_flags & MF_PAX_SEGMEXEC)) {
+		mmput(mm);
+		err = -EPERM;
+		goto out;
+	}
+#endif
+
 	err = do_migrate_pages(mm, old, new,
 		capable(CAP_SYS_NICE) ? MPOL_MF_MOVE_ALL : MPOL_MF_MOVE);
 
diff --git a/mm/migrate.c b/mm/migrate.c
index f9dfb18..c97ca70 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -1524,8 +1524,7 @@ SYSCALL_DEFINE6(move_pages, pid_t, pid, unsigned long, nr_pages,
 	 */
 	tcred = __task_cred(task);
 	if (!uid_eq(cred->euid, tcred->suid) && !uid_eq(cred->euid, tcred->uid) &&
-	    !uid_eq(cred->uid,  tcred->suid) && !uid_eq(cred->uid,  tcred->uid) &&
-	    !capable(CAP_SYS_NICE)) {
+	    !uid_eq(cred->uid,  tcred->suid) && !capable(CAP_SYS_NICE)) {
 		rcu_read_unlock();
 		err = -EPERM;
 		goto out;
diff --git a/mm/mlock.c b/mm/mlock.c
index 96f0010..21004da 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -14,6 +14,7 @@
 #include <linux/pagevec.h>
 #include <linux/mempolicy.h>
 #include <linux/syscalls.h>
+#include <linux/security.h>
 #include <linux/sched.h>
 #include <linux/export.h>
 #include <linux/rmap.h>
@@ -573,7 +574,7 @@ static int apply_vma_lock_flags(unsigned long start, size_t len,
 {
 	unsigned long nstart, end, tmp;
 	struct vm_area_struct * vma, * prev;
-	int error;
+	int error = 0;
 
 	VM_BUG_ON(offset_in_page(start));
 	VM_BUG_ON(len != PAGE_ALIGN(len));
@@ -582,6 +583,9 @@ static int apply_vma_lock_flags(unsigned long start, size_t len,
 		return -EINVAL;
 	if (end == start)
 		return 0;
+	if (end > TASK_SIZE)
+		return -EINVAL;
+
 	vma = find_vma(current->mm, start);
 	if (!vma || vma->vm_start > start)
 		return -ENOMEM;
@@ -591,8 +595,14 @@ static int apply_vma_lock_flags(unsigned long start, size_t len,
 		prev = vma;
 
 	for (nstart = start ; ; ) {
-		vm_flags_t newflags = vma->vm_flags & VM_LOCKED_CLEAR_MASK;
+		vm_flags_t newflags;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+		if ((current->mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE))
+			break;
+#endif
+
+		newflags = vma->vm_flags & VM_LOCKED_CLEAR_MASK;
 		newflags |= flags;
 
 		/* Here we know that  vma->vm_start <= nstart < vma->vm_end. */
@@ -640,6 +650,10 @@ static int do_mlock(unsigned long start, size_t len, vm_flags_t flags)
 	locked += current->mm->locked_vm;
 
 	/* check against resource limits */
+	if (locked > (ULONG_MAX >> PAGE_SHIFT))
+		gr_learn_resource(current, RLIMIT_MEMLOCK, ULONG_MAX, 1);
+	else
+		gr_learn_resource(current, RLIMIT_MEMLOCK, locked << PAGE_SHIFT, 1);
 	if ((locked <= lock_limit) || capable(CAP_IPC_LOCK))
 		error = apply_vma_lock_flags(start, len, flags);
 
@@ -720,6 +734,11 @@ static int apply_mlockall_flags(int flags)
 	for (vma = current->mm->mmap; vma ; vma = prev->vm_next) {
 		vm_flags_t newflags;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+		if ((current->mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE))
+			break;
+#endif
+
 		newflags = vma->vm_flags & VM_LOCKED_CLEAR_MASK;
 		newflags |= to_add;
 
@@ -749,8 +768,12 @@ SYSCALL_DEFINE1(mlockall, int, flags)
 	lock_limit >>= PAGE_SHIFT;
 
 	ret = -ENOMEM;
-	down_write(&current->mm->mmap_sem);
 
+	down_write(&current->mm->mmap_sem);
+	if (current->mm->total_vm > (ULONG_MAX >> PAGE_SHIFT))
+		gr_learn_resource(current, RLIMIT_MEMLOCK, ULONG_MAX, 1);
+	else
+		gr_learn_resource(current, RLIMIT_MEMLOCK, current->mm->total_vm << PAGE_SHIFT, 1);
 	if (!(flags & MCL_CURRENT) || (current->mm->total_vm <= lock_limit) ||
 	    capable(CAP_IPC_LOCK))
 		ret = apply_mlockall_flags(flags);
diff --git a/mm/mm_init.c b/mm/mm_init.c
index 5b72266..dc04ce5 100644
--- a/mm/mm_init.c
+++ b/mm/mm_init.c
@@ -169,7 +169,7 @@ static int __meminit mm_compute_batch_notifier(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block compute_batch_nb __meminitdata = {
+static struct notifier_block compute_batch_nb = {
 	.notifier_call = mm_compute_batch_notifier,
 	.priority = IPC_CALLBACK_PRI, /* use lowest priority */
 };
diff --git a/mm/mmap.c b/mm/mmap.c
index bd2e1a53..9299d7f 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -43,6 +43,7 @@
 #include <linux/userfaultfd_k.h>
 #include <linux/moduleparam.h>
 #include <linux/pkeys.h>
+#include <linux/random.h>
 
 #include <asm/uaccess.h>
 #include <asm/cacheflush.h>
@@ -73,6 +74,16 @@ int mmap_rnd_compat_bits __read_mostly = CONFIG_ARCH_MMAP_RND_COMPAT_BITS;
 static bool ignore_rlimit_data = true;
 core_param(ignore_rlimit_data, ignore_rlimit_data, bool, 0644);
 
+static inline void verify_mm_writelocked(struct mm_struct *mm)
+{
+#if defined(CONFIG_DEBUG_VM) || defined(CONFIG_PAX)
+	if (unlikely(down_read_trylock(&mm->mmap_sem))) {
+		up_read(&mm->mmap_sem);
+		BUG();
+	}
+#endif
+}
+
 static void unmap_region(struct mm_struct *mm,
 		struct vm_area_struct *vma, struct vm_area_struct *prev,
 		unsigned long start, unsigned long end);
@@ -92,16 +103,25 @@ static void unmap_region(struct mm_struct *mm,
  *		x: (no) no	x: (no) yes	x: (no) yes	x: (yes) yes
  *
  */
-pgprot_t protection_map[16] = {
+pgprot_t protection_map[16] __read_only = {
 	__P000, __P001, __P010, __P011, __P100, __P101, __P110, __P111,
 	__S000, __S001, __S010, __S011, __S100, __S101, __S110, __S111
 };
 
-pgprot_t vm_get_page_prot(unsigned long vm_flags)
+pgprot_t vm_get_page_prot(vm_flags_t vm_flags)
 {
-	return __pgprot(pgprot_val(protection_map[vm_flags &
+	pgprot_t prot = __pgprot(pgprot_val(protection_map[vm_flags &
 				(VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)]) |
 			pgprot_val(arch_vm_get_page_prot(vm_flags)));
+
+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
+	if (!(__supported_pte_mask & _PAGE_NX) &&
+	    (vm_flags & (VM_PAGEEXEC | VM_EXEC)) == VM_PAGEEXEC &&
+	    (vm_flags & (VM_READ | VM_WRITE)))
+		prot = __pgprot(pte_val(pte_exprotect(__pte(pgprot_val(prot)))));
+#endif
+
+	return prot;
 }
 EXPORT_SYMBOL(vm_get_page_prot);
 
@@ -163,6 +183,7 @@ static struct vm_area_struct *remove_vma(struct vm_area_struct *vma)
 	struct vm_area_struct *next = vma->vm_next;
 
 	might_sleep();
+	BUG_ON(vma->vm_mirror);
 	if (vma->vm_ops && vma->vm_ops->close)
 		vma->vm_ops->close(vma);
 	if (vma->vm_file)
@@ -176,6 +197,7 @@ static unsigned long do_brk(unsigned long addr, unsigned long len);
 
 SYSCALL_DEFINE1(brk, unsigned long, brk)
 {
+	unsigned long rlim;
 	unsigned long retval;
 	unsigned long newbrk, oldbrk;
 	struct mm_struct *mm = current->mm;
@@ -206,7 +228,13 @@ SYSCALL_DEFINE1(brk, unsigned long, brk)
 	 * segment grow beyond its set limit the in case where the limit is
 	 * not page aligned -Ram Gupta
 	 */
-	if (check_data_rlimit(rlimit(RLIMIT_DATA), brk, mm->start_brk,
+	rlim = rlimit(RLIMIT_DATA);
+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
+	/* force a minimum 16MB brk heap on setuid/setgid binaries */
+	if (rlim < (4096 * PAGE_SIZE) && (get_dumpable(mm) != SUID_DUMP_USER) && gr_is_global_nonroot(current_uid()))
+		rlim = 4096 * PAGE_SIZE;
+#endif
+	if (check_data_rlimit(rlim, brk, mm->start_brk,
 			      mm->end_data, mm->start_data))
 		goto out;
 
@@ -871,6 +899,12 @@ can_vma_merge_before(struct vm_area_struct *vma, unsigned long vm_flags,
 		     pgoff_t vm_pgoff,
 		     struct vm_userfaultfd_ctx vm_userfaultfd_ctx)
 {
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if ((vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_start == SEGMEXEC_TASK_SIZE)
+		return 0;
+#endif
+
 	if (is_mergeable_vma(vma, file, vm_flags, vm_userfaultfd_ctx) &&
 	    is_mergeable_anon_vma(anon_vma, vma->anon_vma, vma)) {
 		if (vma->vm_pgoff == vm_pgoff)
@@ -892,6 +926,12 @@ can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags,
 		    pgoff_t vm_pgoff,
 		    struct vm_userfaultfd_ctx vm_userfaultfd_ctx)
 {
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if ((vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_end == SEGMEXEC_TASK_SIZE)
+		return 0;
+#endif
+
 	if (is_mergeable_vma(vma, file, vm_flags, vm_userfaultfd_ctx) &&
 	    is_mergeable_anon_vma(anon_vma, vma->anon_vma, vma)) {
 		pgoff_t vm_pglen;
@@ -942,6 +982,13 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
 	struct vm_area_struct *area, *next;
 	int err;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	unsigned long addr_m = addr + SEGMEXEC_TASK_SIZE, end_m = end + SEGMEXEC_TASK_SIZE;
+	struct vm_area_struct *area_m = NULL, *next_m = NULL, *prev_m = NULL;
+
+	BUG_ON((mm->pax_flags & MF_PAX_SEGMEXEC) && SEGMEXEC_TASK_SIZE < end);
+#endif
+
 	/*
 	 * We later require that vma->vm_flags == vm_flags,
 	 * so this tests vma->vm_flags & VM_SPECIAL, too.
@@ -957,6 +1004,15 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
 	if (next && next->vm_end == end)		/* cases 6, 7, 8 */
 		next = next->vm_next;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (prev)
+		prev_m = pax_find_mirror_vma(prev);
+	if (area)
+		area_m = pax_find_mirror_vma(area);
+	if (next)
+		next_m = pax_find_mirror_vma(next);
+#endif
+
 	/*
 	 * Can it merge with the predecessor?
 	 */
@@ -979,9 +1035,24 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
 							/* cases 1, 6 */
 			err = vma_adjust(prev, prev->vm_start,
 				next->vm_end, prev->vm_pgoff, NULL);
-		} else					/* cases 2, 5, 7 */
+
+#ifdef CONFIG_PAX_SEGMEXEC
+			if (!err && prev_m)
+				err = vma_adjust(prev_m, prev_m->vm_start,
+					next_m->vm_end, prev_m->vm_pgoff, NULL);
+#endif
+
+		} else {				/* cases 2, 5, 7 */
 			err = vma_adjust(prev, prev->vm_start,
 				end, prev->vm_pgoff, NULL);
+
+#ifdef CONFIG_PAX_SEGMEXEC
+			if (!err && prev_m)
+				err = vma_adjust(prev_m, prev_m->vm_start,
+						end_m, prev_m->vm_pgoff, NULL);
+#endif
+
+		}
 		if (err)
 			return NULL;
 		khugepaged_enter_vma_merge(prev, vm_flags);
@@ -996,12 +1067,27 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
 			can_vma_merge_before(next, vm_flags,
 					     anon_vma, file, pgoff+pglen,
 					     vm_userfaultfd_ctx)) {
-		if (prev && addr < prev->vm_end)	/* case 4 */
+		if (prev && addr < prev->vm_end) {	/* case 4 */
 			err = vma_adjust(prev, prev->vm_start,
 				addr, prev->vm_pgoff, NULL);
-		else					/* cases 3, 8 */
+
+#ifdef CONFIG_PAX_SEGMEXEC
+			if (!err && prev_m)
+				err = vma_adjust(prev_m, prev_m->vm_start,
+						addr_m, prev_m->vm_pgoff, NULL);
+#endif
+
+		} else {				/* cases 3, 8 */
 			err = vma_adjust(area, addr, next->vm_end,
 				next->vm_pgoff - pglen, NULL);
+
+#ifdef CONFIG_PAX_SEGMEXEC
+			if (!err && area_m)
+				err = vma_adjust(area_m, addr_m, next_m->vm_end,
+						next_m->vm_pgoff - pglen, NULL);
+#endif
+
+		}
 		if (err)
 			return NULL;
 		khugepaged_enter_vma_merge(area, vm_flags);
@@ -1131,6 +1217,10 @@ static inline int mlock_future_check(struct mm_struct *mm,
 		locked += mm->locked_vm;
 		lock_limit = rlimit(RLIMIT_MEMLOCK);
 		lock_limit >>= PAGE_SHIFT;
+		if (locked > (ULONG_MAX >> PAGE_SHIFT))
+			gr_learn_resource(current, RLIMIT_MEMLOCK, ULONG_MAX, 1);
+		else
+			gr_learn_resource(current, RLIMIT_MEMLOCK, locked << PAGE_SHIFT, 1);
 		if (locked > lock_limit && !capable(CAP_IPC_LOCK))
 			return -EAGAIN;
 	}
@@ -1159,7 +1249,7 @@ unsigned long do_mmap(struct file *file, unsigned long addr,
 	 * (the exception is when the underlying filesystem is noexec
 	 *  mounted, in which case we dont add PROT_EXEC.)
 	 */
-	if ((prot & PROT_READ) && (current->personality & READ_IMPLIES_EXEC))
+	if ((prot & (PROT_READ | PROT_WRITE)) && (current->personality & READ_IMPLIES_EXEC))
 		if (!(file && path_noexec(&file->f_path)))
 			prot |= PROT_EXEC;
 
@@ -1182,7 +1272,7 @@ unsigned long do_mmap(struct file *file, unsigned long addr,
 	/* Obtain the address to map to. we verify (or select) it and ensure
 	 * that it represents a valid section of the address space.
 	 */
-	addr = get_unmapped_area(file, addr, len, pgoff, flags);
+	addr = get_unmapped_area(file, addr, len, pgoff, flags | ((prot & PROT_EXEC) ? MAP_EXECUTABLE : 0));
 	if (offset_in_page(addr))
 		return addr;
 
@@ -1199,6 +1289,43 @@ unsigned long do_mmap(struct file *file, unsigned long addr,
 	vm_flags |= calc_vm_prot_bits(prot, pkey) | calc_vm_flag_bits(flags) |
 			mm->def_flags | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC;
 
+#ifdef CONFIG_PAX_MPROTECT
+	if (mm->pax_flags & MF_PAX_MPROTECT) {
+
+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
+		if (file && !pgoff && (vm_flags & VM_EXEC) && mm->binfmt &&
+		    mm->binfmt->handle_mmap)
+			mm->binfmt->handle_mmap(file);
+#endif
+
+#ifndef CONFIG_PAX_MPROTECT_COMPAT
+		if ((vm_flags & (VM_WRITE | VM_EXEC)) == (VM_WRITE | VM_EXEC)) {
+			gr_log_rwxmmap(file);
+
+#ifdef CONFIG_PAX_EMUPLT
+			vm_flags &= ~VM_EXEC;
+#else
+			return -EPERM;
+#endif
+
+		}
+
+		if (!(vm_flags & VM_EXEC))
+			vm_flags &= ~VM_MAYEXEC;
+#else
+		if ((vm_flags & (VM_WRITE | VM_EXEC)) != VM_EXEC)
+			vm_flags &= ~(VM_EXEC | VM_MAYEXEC);
+#endif
+		else
+			vm_flags &= ~VM_MAYWRITE;
+	}
+#endif
+
+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
+	if ((mm->pax_flags & MF_PAX_PAGEEXEC) && file)
+		vm_flags &= ~VM_PAGEEXEC;
+#endif
+
 	if (flags & MAP_LOCKED)
 		if (!can_do_mlock())
 			return -EPERM;
@@ -1286,6 +1413,9 @@ unsigned long do_mmap(struct file *file, unsigned long addr,
 			vm_flags |= VM_NORESERVE;
 	}
 
+	if (!gr_acl_handle_mmap(file, prot))
+		return -EACCES;
+	
 	addr = mmap_region(file, addr, len, vm_flags, pgoff);
 	if (!IS_ERR_VALUE(addr) &&
 	    ((vm_flags & VM_LOCKED) ||
@@ -1379,7 +1509,7 @@ int vma_wants_writenotify(struct vm_area_struct *vma)
 	const struct vm_operations_struct *vm_ops = vma->vm_ops;
 
 	/* If it was private or non-writable, the write bit is already clear */
-	if ((vm_flags & (VM_WRITE|VM_SHARED)) != ((VM_WRITE|VM_SHARED)))
+	if ((vm_flags & (VM_WRITE|VM_SHARED)) != (VM_WRITE|VM_SHARED))
 		return 0;
 
 	/* The backer wishes to know when pages are first written to? */
@@ -1430,7 +1560,22 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
 	struct rb_node **rb_link, *rb_parent;
 	unsigned long charged = 0;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	struct vm_area_struct *vma_m = NULL;
+#endif
+
+	/*
+	 * mm->mmap_sem is required to protect against another thread
+	 * changing the mappings in case we sleep.
+	 */
+	verify_mm_writelocked(mm);
+
 	/* Check against address space limit. */
+
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP) || (vm_flags & (VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)))
+#endif
+
 	if (!may_expand_vm(mm, vm_flags, len >> PAGE_SHIFT)) {
 		unsigned long nr_pages;
 
@@ -1450,6 +1595,7 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
 			      &rb_parent)) {
 		if (do_munmap(mm, addr, len))
 			return -ENOMEM;
+		BUG_ON(find_vma_links(mm, addr, addr + len, &prev, &rb_link, &rb_parent));
 	}
 
 	/*
@@ -1481,6 +1627,16 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
 		goto unacct_error;
 	}
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vm_flags & VM_EXEC)) {
+		vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
+		if (!vma_m) {
+			error = -ENOMEM;
+			goto free_vma;
+		}
+	}
+#endif
+
 	vma->vm_mm = mm;
 	vma->vm_start = addr;
 	vma->vm_end = addr + len;
@@ -1511,6 +1667,13 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
 		if (error)
 			goto unmap_and_free_vma;
 
+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
+		if ((mm->pax_flags & MF_PAX_PAGEEXEC) && !(vma->vm_flags & VM_SPECIAL)) {
+			vma->vm_flags |= VM_PAGEEXEC;
+			vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
+		}
+#endif
+
 		/* Can addr have changed??
 		 *
 		 * Answer: Yes, several device drivers can do it in their
@@ -1529,6 +1692,12 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
 	}
 
 	vma_link(mm, vma, prev, rb_link, rb_parent);
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (vma_m)
+		BUG_ON(pax_mirror_vma(vma_m, vma));
+#endif
+
 	/* Once vma denies write, undo our temporary denial count */
 	if (file) {
 		if (vm_flags & VM_SHARED)
@@ -1541,6 +1710,7 @@ out:
 	perf_event_mmap(vma);
 
 	vm_stat_account(mm, vm_flags, len >> PAGE_SHIFT);
+	track_exec_limit(mm, addr, addr + len, vm_flags);
 	if (vm_flags & VM_LOCKED) {
 		if (!((vm_flags & VM_SPECIAL) || is_vm_hugetlb_page(vma) ||
 					vma == get_gate_vma(current->mm)))
@@ -1578,6 +1748,12 @@ allow_write_and_free_vma:
 	if (vm_flags & VM_DENYWRITE)
 		allow_write_access(file);
 free_vma:
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (vma_m)
+		kmem_cache_free(vm_area_cachep, vma_m);
+#endif
+
 	kmem_cache_free(vm_area_cachep, vma);
 unacct_error:
 	if (charged)
@@ -1585,7 +1761,63 @@ unacct_error:
 	return error;
 }
 
-unsigned long unmapped_area(struct vm_unmapped_area_info *info)
+#ifdef CONFIG_GRKERNSEC_RAND_THREADSTACK
+unsigned long gr_rand_threadstack_offset(const struct mm_struct *mm, const struct file *filp, unsigned long flags)
+{
+	if ((mm->pax_flags & MF_PAX_RANDMMAP) && !filp && (flags & MAP_STACK))
+		return ((prandom_u32() & 0xFF) + 1) << PAGE_SHIFT;
+
+	return 0;
+}
+#endif
+
+bool check_heap_stack_gap(const struct vm_area_struct *vma, unsigned long addr, unsigned long len, unsigned long offset)
+{
+	if (!vma) {
+#ifdef CONFIG_STACK_GROWSUP
+		if (addr > sysctl_heap_stack_gap)
+			vma = find_vma(current->mm, addr - sysctl_heap_stack_gap);
+		else
+			vma = find_vma(current->mm, 0);
+		if (vma && (vma->vm_flags & VM_GROWSUP))
+			return false;
+#endif
+		return true;
+	}
+
+	if (addr + len > vma->vm_start)
+		return false;
+
+	if (vma->vm_flags & VM_GROWSDOWN)
+		return sysctl_heap_stack_gap <= vma->vm_start - addr - len;
+#ifdef CONFIG_STACK_GROWSUP
+	else if (vma->vm_prev && (vma->vm_prev->vm_flags & VM_GROWSUP))
+		return addr - vma->vm_prev->vm_end >= sysctl_heap_stack_gap;
+#endif
+	else if (offset)
+		return offset <= vma->vm_start - addr - len;
+
+	return true;
+}
+
+unsigned long skip_heap_stack_gap(const struct vm_area_struct *vma, unsigned long len, unsigned long offset)
+{
+	if (vma->vm_start < len)
+		return -ENOMEM;
+
+	if (!(vma->vm_flags & VM_GROWSDOWN)) {
+		if (offset <= vma->vm_start - len)
+			return vma->vm_start - len - offset;
+		else
+			return -ENOMEM;
+	}
+
+	if (sysctl_heap_stack_gap <= vma->vm_start - len)
+		return vma->vm_start - len - sysctl_heap_stack_gap;
+	return -ENOMEM;
+}
+
+unsigned long unmapped_area(const struct vm_unmapped_area_info *info)
 {
 	/*
 	 * We implement the search by looking for an rbtree node that
@@ -1633,11 +1865,29 @@ unsigned long unmapped_area(struct vm_unmapped_area_info *info)
 			}
 		}
 
-		gap_start = vma->vm_prev ? vma->vm_prev->vm_end : 0;
+		gap_start = vma->vm_prev ? vma->vm_prev->vm_end: 0;
 check_current:
 		/* Check if current node has a suitable gap */
 		if (gap_start > high_limit)
 			return -ENOMEM;
+
+		if (gap_end - gap_start > info->threadstack_offset)
+			gap_start += info->threadstack_offset;
+		else
+			gap_start = gap_end;
+
+		if (vma->vm_prev && (vma->vm_prev->vm_flags & VM_GROWSUP)) {
+			if (gap_end - gap_start > sysctl_heap_stack_gap)
+				gap_start += sysctl_heap_stack_gap;
+			else
+				gap_start = gap_end;
+		}
+		if (vma->vm_flags & VM_GROWSDOWN) {
+			if (gap_end - gap_start > sysctl_heap_stack_gap)
+				gap_end -= sysctl_heap_stack_gap;
+			else
+				gap_end = gap_start;
+		}
 		if (gap_end >= low_limit && gap_end - gap_start >= length)
 			goto found;
 
@@ -1687,7 +1937,7 @@ found:
 	return gap_start;
 }
 
-unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info)
+unsigned long unmapped_area_topdown(const struct vm_unmapped_area_info *info)
 {
 	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
@@ -1741,6 +1991,24 @@ check_current:
 		gap_end = vma->vm_start;
 		if (gap_end < low_limit)
 			return -ENOMEM;
+
+		if (gap_end - gap_start > info->threadstack_offset)
+			gap_end -= info->threadstack_offset;
+		else
+			gap_end = gap_start;
+
+		if (vma->vm_prev && (vma->vm_prev->vm_flags & VM_GROWSUP)) {
+			if (gap_end - gap_start > sysctl_heap_stack_gap)
+				gap_start += sysctl_heap_stack_gap;
+			else
+				gap_start = gap_end;
+		}
+		if (vma->vm_flags & VM_GROWSDOWN) {
+			if (gap_end - gap_start > sysctl_heap_stack_gap)
+				gap_end -= sysctl_heap_stack_gap;
+			else
+				gap_end = gap_start;
+		}
 		if (gap_start <= high_limit && gap_end - gap_start >= length)
 			goto found;
 
@@ -1804,6 +2072,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 	struct vm_unmapped_area_info info;
+	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
 
 	if (len > TASK_SIZE - mmap_min_addr)
 		return -ENOMEM;
@@ -1811,11 +2080,15 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	if (flags & MAP_FIXED)
 		return addr;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	if (addr) {
 		addr = PAGE_ALIGN(addr);
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr && addr >= mmap_min_addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    check_heap_stack_gap(vma, addr, len, offset))
 			return addr;
 	}
 
@@ -1824,6 +2097,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	info.low_limit = mm->mmap_base;
 	info.high_limit = TASK_SIZE;
 	info.align_mask = 0;
+	info.threadstack_offset = offset;
 	return vm_unmapped_area(&info);
 }
 #endif
@@ -1842,6 +2116,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	struct mm_struct *mm = current->mm;
 	unsigned long addr = addr0;
 	struct vm_unmapped_area_info info;
+	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
 
 	/* requested length too big for entire address space */
 	if (len > TASK_SIZE - mmap_min_addr)
@@ -1850,12 +2125,16 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	if (flags & MAP_FIXED)
 		return addr;
 
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
+#endif
+
 	/* requesting a specific address */
 	if (addr) {
 		addr = PAGE_ALIGN(addr);
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr && addr >= mmap_min_addr &&
-				(!vma || addr + len <= vma->vm_start))
+				check_heap_stack_gap(vma, addr, len, offset))
 			return addr;
 	}
 
@@ -1864,6 +2143,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	info.low_limit = max(PAGE_SIZE, mmap_min_addr);
 	info.high_limit = mm->mmap_base;
 	info.align_mask = 0;
+	info.threadstack_offset = offset;
 	addr = vm_unmapped_area(&info);
 
 	/*
@@ -1876,6 +2156,12 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 		VM_BUG_ON(addr != -ENOMEM);
 		info.flags = 0;
 		info.low_limit = TASK_UNMAPPED_BASE;
+
+#ifdef CONFIG_PAX_RANDMMAP
+		if (mm->pax_flags & MF_PAX_RANDMMAP)
+			info.low_limit += mm->delta_mmap;
+#endif
+
 		info.high_limit = TASK_SIZE;
 		addr = vm_unmapped_area(&info);
 	}
@@ -1975,6 +2261,28 @@ find_vma_prev(struct mm_struct *mm, unsigned long addr,
 	return vma;
 }
 
+#ifdef CONFIG_PAX_SEGMEXEC
+struct vm_area_struct *pax_find_mirror_vma(struct vm_area_struct *vma)
+{
+	struct vm_area_struct *vma_m;
+
+	BUG_ON(!vma || vma->vm_start >= vma->vm_end);
+	if (!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) || !(vma->vm_flags & VM_EXEC)) {
+		BUG_ON(vma->vm_mirror);
+		return NULL;
+	}
+	BUG_ON(vma->vm_start < SEGMEXEC_TASK_SIZE && SEGMEXEC_TASK_SIZE < vma->vm_end);
+	vma_m = vma->vm_mirror;
+	BUG_ON(!vma_m || vma_m->vm_mirror != vma);
+	BUG_ON(vma->vm_file != vma_m->vm_file);
+	BUG_ON(vma->vm_end - vma->vm_start != vma_m->vm_end - vma_m->vm_start);
+	BUG_ON(vma->vm_pgoff != vma_m->vm_pgoff);
+	BUG_ON(vma->anon_vma != vma_m->anon_vma && vma->anon_vma->root != vma_m->anon_vma->root);
+	BUG_ON((vma->vm_flags ^ vma_m->vm_flags) & ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT | VM_LOCKED));
+	return vma_m;
+}
+#endif
+
 /*
  * Verify that the stack growth is acceptable and
  * update accounting. This is shared with both the
@@ -1992,8 +2300,7 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns
 
 	/* Stack limit test */
 	actual_size = size;
-	if (size && (vma->vm_flags & (VM_GROWSUP | VM_GROWSDOWN)))
-		actual_size -= PAGE_SIZE;
+	gr_learn_resource(current, RLIMIT_STACK, actual_size, 1);
 	if (actual_size > READ_ONCE(rlim[RLIMIT_STACK].rlim_cur))
 		return -ENOMEM;
 
@@ -2004,6 +2311,10 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns
 		locked = mm->locked_vm + grow;
 		limit = READ_ONCE(rlim[RLIMIT_MEMLOCK].rlim_cur);
 		limit >>= PAGE_SHIFT;
+		if (locked > (ULONG_MAX >> PAGE_SHIFT))
+			gr_learn_resource(current, RLIMIT_MEMLOCK, ULONG_MAX, 1);
+		else
+			gr_learn_resource(current, RLIMIT_MEMLOCK, locked << PAGE_SHIFT, 1);
 		if (locked > limit && !capable(CAP_IPC_LOCK))
 			return -ENOMEM;
 	}
@@ -2029,17 +2340,21 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns
  * PA-RISC uses this for its stack; IA64 for its Register Backing Store.
  * vma is the last one with address > vma->vm_end.  Have to extend vma.
  */
+#ifndef CONFIG_IA64
+static
+#endif
 int expand_upwards(struct vm_area_struct *vma, unsigned long address)
 {
 	struct mm_struct *mm = vma->vm_mm;
 	int error = 0;
+	bool locknext;
 
 	if (!(vma->vm_flags & VM_GROWSUP))
 		return -EFAULT;
 
 	/* Guard against wrapping around to address 0. */
-	if (address < PAGE_ALIGN(address+4))
-		address = PAGE_ALIGN(address+4);
+	if (address < PAGE_ALIGN(address+1))
+		address = PAGE_ALIGN(address+1);
 	else
 		return -ENOMEM;
 
@@ -2047,15 +2362,24 @@ int expand_upwards(struct vm_area_struct *vma, unsigned long address)
 	if (unlikely(anon_vma_prepare(vma)))
 		return -ENOMEM;
 
+	locknext = vma->vm_next && (vma->vm_next->vm_flags & VM_GROWSDOWN);
+	if (locknext && anon_vma_prepare(vma->vm_next))
+		return -ENOMEM;
+
 	/*
 	 * vma->vm_start/vm_end cannot change under us because the caller
 	 * is required to hold the mmap_sem in read mode.  We need the
-	 * anon_vma lock to serialize against concurrent expand_stacks.
+	 * anon_vma locks to serialize against concurrent expand_stacks
+	 * and expand_upwards.
 	 */
 	anon_vma_lock_write(vma->anon_vma);
+	if (locknext)
+		anon_vma_lock_write(vma->vma_next->anon_vma);
 
 	/* Somebody else might have raced and expanded it already */
-	if (address > vma->vm_end) {
+	if (vma->vm_next && (vma->vm_next->vm_flags & (VM_READ | VM_WRITE | VM_EXEC)) && vma->vm_next->vm_start - address < sysctl_heap_stack_gap)
+		error = -ENOMEM;
+	else if (address > vma->vm_end && (!locknext || vma->vm_next->vm_start >= address)) {
 		unsigned long size, grow;
 
 		size = address - vma->vm_start;
@@ -2093,6 +2417,8 @@ int expand_upwards(struct vm_area_struct *vma, unsigned long address)
 			}
 		}
 	}
+	if (locknext)
+		anon_vma_unlock_write(vma->vm_next->anon_vma);
 	anon_vma_unlock_write(vma->anon_vma);
 	khugepaged_enter_vma_merge(vma, vma->vm_flags);
 	validate_mm(mm);
@@ -2108,6 +2434,8 @@ int expand_downwards(struct vm_area_struct *vma,
 {
 	struct mm_struct *mm = vma->vm_mm;
 	int error;
+	bool lockprev = false;
+	struct vm_area_struct *prev;
 
 	address &= PAGE_MASK;
 	error = security_mmap_addr(address);
@@ -2118,6 +2446,15 @@ int expand_downwards(struct vm_area_struct *vma,
 	if (unlikely(anon_vma_prepare(vma)))
 		return -ENOMEM;
 
+	prev = vma->vm_prev;
+#if defined(CONFIG_STACK_GROWSUP) || defined(CONFIG_IA64)
+	lockprev = prev && (prev->vm_flags & VM_GROWSUP);
+#endif
+	if (lockprev && anon_vma_prepare(prev))
+		return -ENOMEM;
+	if (lockprev)
+		anon_vma_lock_write(prev->anon_vma);
+
 	/*
 	 * vma->vm_start/vm_end cannot change under us because the caller
 	 * is required to hold the mmap_sem in read mode.  We need the
@@ -2126,9 +2463,17 @@ int expand_downwards(struct vm_area_struct *vma,
 	anon_vma_lock_write(vma->anon_vma);
 
 	/* Somebody else might have raced and expanded it already */
-	if (address < vma->vm_start) {
+	if (prev && (prev->vm_flags & (VM_READ | VM_WRITE | VM_EXEC)) && address - prev->vm_end < sysctl_heap_stack_gap)
+		error = -ENOMEM;
+	else if (address < vma->vm_start && (!lockprev || prev->vm_end <= address)) {
 		unsigned long size, grow;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+		struct vm_area_struct *vma_m;
+
+		vma_m = pax_find_mirror_vma(vma);
+#endif
+
 		size = vma->vm_end - address;
 		grow = (vma->vm_start - address) >> PAGE_SHIFT;
 
@@ -2156,13 +2501,27 @@ int expand_downwards(struct vm_area_struct *vma,
 				vma->vm_pgoff -= grow;
 				anon_vma_interval_tree_post_update_vma(vma);
 				vma_gap_update(vma);
+
+#ifdef CONFIG_PAX_SEGMEXEC
+				if (vma_m) {
+					anon_vma_interval_tree_pre_update_vma(vma_m);
+					vma_m->vm_start -= grow << PAGE_SHIFT;
+					vma_m->vm_pgoff -= grow;
+					anon_vma_interval_tree_post_update_vma(vma_m);
+					vma_gap_update(vma_m);
+				}
+#endif
+
 				spin_unlock(&mm->page_table_lock);
 
+				track_exec_limit(vma->vm_mm, vma->vm_start, vma->vm_end, vma->vm_flags);
 				perf_event_mmap(vma);
 			}
 		}
 	}
 	anon_vma_unlock_write(vma->anon_vma);
+	if (lockprev)
+		anon_vma_unlock_write(prev->anon_vma);
 	khugepaged_enter_vma_merge(vma, vma->vm_flags);
 	validate_mm(mm);
 	return error;
@@ -2262,6 +2621,13 @@ static void remove_vma_list(struct mm_struct *mm, struct vm_area_struct *vma)
 	do {
 		long nrpages = vma_pages(vma);
 
+#ifdef CONFIG_PAX_SEGMEXEC
+		if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE)) {
+			vma = remove_vma(vma);
+			continue;
+		}
+#endif
+
 		if (vma->vm_flags & VM_ACCOUNT)
 			nr_accounted += nrpages;
 		vm_stat_account(mm, vma->vm_flags, -nrpages);
@@ -2306,6 +2672,16 @@ detach_vmas_to_be_unmapped(struct mm_struct *mm, struct vm_area_struct *vma,
 	insertion_point = (prev ? &prev->vm_next : &mm->mmap);
 	vma->vm_prev = NULL;
 	do {
+
+#ifdef CONFIG_PAX_SEGMEXEC
+		if (vma->vm_mirror) {
+			BUG_ON(!vma->vm_mirror->vm_mirror || vma->vm_mirror->vm_mirror != vma);
+			vma->vm_mirror->vm_mirror = NULL;
+			vma->vm_mirror->vm_flags &= ~VM_EXEC;
+			vma->vm_mirror = NULL;
+		}
+#endif
+
 		vma_rb_erase(vma, &mm->mm_rb);
 		mm->map_count--;
 		tail_vma = vma;
@@ -2333,14 +2709,33 @@ static int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
 	struct vm_area_struct *new;
 	int err;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	struct vm_area_struct *vma_m, *new_m = NULL;
+	unsigned long addr_m = addr + SEGMEXEC_TASK_SIZE;
+#endif
+
 	if (is_vm_hugetlb_page(vma) && (addr &
 					~(huge_page_mask(hstate_vma(vma)))))
 		return -EINVAL;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	vma_m = pax_find_mirror_vma(vma);
+#endif
+
 	new = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
 	if (!new)
 		return -ENOMEM;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (vma_m) {
+		new_m = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
+		if (!new_m) {
+			kmem_cache_free(vm_area_cachep, new);
+			return -ENOMEM;
+		}
+	}
+#endif
+
 	/* most fields are the same, copy all, and then fixup */
 	*new = *vma;
 
@@ -2353,6 +2748,22 @@ static int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
 		new->vm_pgoff += ((addr - vma->vm_start) >> PAGE_SHIFT);
 	}
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (vma_m) {
+		*new_m = *vma_m;
+		INIT_LIST_HEAD(&new_m->anon_vma_chain);
+		new_m->vm_mirror = new;
+		new->vm_mirror = new_m;
+
+		if (new_below)
+			new_m->vm_end = addr_m;
+		else {
+			new_m->vm_start = addr_m;
+			new_m->vm_pgoff += ((addr_m - vma_m->vm_start) >> PAGE_SHIFT);
+		}
+	}
+#endif
+
 	err = vma_dup_policy(vma, new);
 	if (err)
 		goto out_free_vma;
@@ -2373,6 +2784,38 @@ static int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
 	else
 		err = vma_adjust(vma, vma->vm_start, addr, vma->vm_pgoff, new);
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (!err && vma_m) {
+		struct mempolicy *pol = vma_policy(new);
+
+		if (anon_vma_clone(new_m, vma_m))
+			goto out_free_mpol;
+
+		mpol_get(pol);
+		set_vma_policy(new_m, pol);
+
+		if (new_m->vm_file)
+			get_file(new_m->vm_file);
+
+		if (new_m->vm_ops && new_m->vm_ops->open)
+			new_m->vm_ops->open(new_m);
+
+		if (new_below)
+			err = vma_adjust(vma_m, addr_m, vma_m->vm_end, vma_m->vm_pgoff +
+				((addr_m - new_m->vm_start) >> PAGE_SHIFT), new_m);
+		else
+			err = vma_adjust(vma_m, vma_m->vm_start, addr_m, vma_m->vm_pgoff, new_m);
+
+		if (err) {
+			if (new_m->vm_ops && new_m->vm_ops->close)
+				new_m->vm_ops->close(new_m);
+			if (new_m->vm_file)
+				fput(new_m->vm_file);
+			mpol_put(pol);
+		}
+	}
+#endif
+
 	/* Success. */
 	if (!err)
 		return 0;
@@ -2382,10 +2825,18 @@ static int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
 		new->vm_ops->close(new);
 	if (new->vm_file)
 		fput(new->vm_file);
-	unlink_anon_vmas(new);
  out_free_mpol:
 	mpol_put(vma_policy(new));
  out_free_vma:
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (new_m) {
+		unlink_anon_vmas(new_m);
+		kmem_cache_free(vm_area_cachep, new_m);
+	}
+#endif
+
+	unlink_anon_vmas(new);
 	kmem_cache_free(vm_area_cachep, new);
 	return err;
 }
@@ -2397,6 +2848,15 @@ static int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
 int split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
 	      unsigned long addr, int new_below)
 {
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (mm->pax_flags & MF_PAX_SEGMEXEC) {
+		BUG_ON(vma->vm_end > SEGMEXEC_TASK_SIZE);
+		if (mm->map_count >= sysctl_max_map_count-1)
+			return -ENOMEM;
+	} else
+#endif
+
 	if (mm->map_count >= sysctl_max_map_count)
 		return -ENOMEM;
 
@@ -2408,11 +2868,30 @@ int split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
  * work.  This now handles partial unmappings.
  * Jeremy Fitzhardinge <jeremy@goop.org>
  */
+#ifdef CONFIG_PAX_SEGMEXEC
 int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
 {
+	int ret = __do_munmap(mm, start, len);
+	if (ret || !(mm->pax_flags & MF_PAX_SEGMEXEC))
+		return ret;
+
+	return __do_munmap(mm, start + SEGMEXEC_TASK_SIZE, len);
+}
+
+int __do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
+#else
+int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
+#endif
+{
 	unsigned long end;
 	struct vm_area_struct *vma, *prev, *last;
 
+	/*
+	 * mm->mmap_sem is required to protect against another thread
+	 * changing the mappings in case we sleep.
+	 */
+	verify_mm_writelocked(mm);
+
 	if ((offset_in_page(start)) || start > TASK_SIZE || len > TASK_SIZE-start)
 		return -EINVAL;
 
@@ -2490,6 +2969,8 @@ int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
 	/* Fix up all other VM information */
 	remove_vma_list(mm, vma);
 
+	track_exec_limit(mm, start, end, 0UL);
+
 	return 0;
 }
 
@@ -2498,6 +2979,13 @@ int vm_munmap(unsigned long start, size_t len)
 	int ret;
 	struct mm_struct *mm = current->mm;
 
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if ((mm->pax_flags & MF_PAX_SEGMEXEC) &&
+	    (len > SEGMEXEC_TASK_SIZE || start > SEGMEXEC_TASK_SIZE-len))
+		return -EINVAL;
+#endif
+
 	down_write(&mm->mmap_sem);
 	ret = do_munmap(mm, start, len);
 	up_write(&mm->mmap_sem);
@@ -2543,6 +3031,11 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
 	down_write(&mm->mmap_sem);
 	vma = find_vma(mm, start);
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (vma && (mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_flags & VM_MAYEXEC))
+		goto out;
+#endif
+
 	if (!vma || !(vma->vm_flags & VM_SHARED))
 		goto out;
 
@@ -2603,16 +3096,6 @@ out:
 	return ret;
 }
 
-static inline void verify_mm_writelocked(struct mm_struct *mm)
-{
-#ifdef CONFIG_DEBUG_VM
-	if (unlikely(down_read_trylock(&mm->mmap_sem))) {
-		WARN_ON(1);
-		up_read(&mm->mmap_sem);
-	}
-#endif
-}
-
 /*
  *  this is really a simplified "do_mmap".  it only handles
  *  anonymous maps.  eventually we may be able to do some
@@ -2626,6 +3109,7 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
 	struct rb_node **rb_link, *rb_parent;
 	pgoff_t pgoff = addr >> PAGE_SHIFT;
 	int error;
+	unsigned long charged;
 
 	len = PAGE_ALIGN(len);
 	if (!len)
@@ -2633,10 +3117,24 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
 
 	flags = VM_DATA_DEFAULT_FLAGS | VM_ACCOUNT | mm->def_flags;
 
+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
+	if (mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
+		flags &= ~VM_EXEC;
+
+#ifdef CONFIG_PAX_MPROTECT
+		if (mm->pax_flags & MF_PAX_MPROTECT)
+			flags &= ~VM_MAYEXEC;
+#endif
+
+	}
+#endif
+
 	error = get_unmapped_area(NULL, addr, len, 0, MAP_FIXED);
 	if (offset_in_page(error))
 		return error;
 
+	charged = len >> PAGE_SHIFT;
+
 	error = mlock_future_check(mm, mm->def_flags, len);
 	if (error)
 		return error;
@@ -2654,16 +3152,17 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
 			      &rb_parent)) {
 		if (do_munmap(mm, addr, len))
 			return -ENOMEM;
+		BUG_ON(find_vma_links(mm, addr, addr + len, &prev, &rb_link, &rb_parent));
 	}
 
 	/* Check against address space limits *after* clearing old maps... */
-	if (!may_expand_vm(mm, flags, len >> PAGE_SHIFT))
+	if (!may_expand_vm(mm, flags, charged))
 		return -ENOMEM;
 
 	if (mm->map_count > sysctl_max_map_count)
 		return -ENOMEM;
 
-	if (security_vm_enough_memory_mm(mm, len >> PAGE_SHIFT))
+	if (security_vm_enough_memory_mm(mm, charged))
 		return -ENOMEM;
 
 	/* Can we just expand an old private anonymous mapping? */
@@ -2677,7 +3176,7 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
 	 */
 	vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
 	if (!vma) {
-		vm_unacct_memory(len >> PAGE_SHIFT);
+		vm_unacct_memory(charged);
 		return -ENOMEM;
 	}
 
@@ -2691,11 +3190,12 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
 	vma_link(mm, vma, prev, rb_link, rb_parent);
 out:
 	perf_event_mmap(vma);
-	mm->total_vm += len >> PAGE_SHIFT;
-	mm->data_vm += len >> PAGE_SHIFT;
+	mm->total_vm += charged;
+	mm->data_vm += charged;
 	if (flags & VM_LOCKED)
-		mm->locked_vm += (len >> PAGE_SHIFT);
+		mm->locked_vm += charged;
 	vma->vm_flags |= VM_SOFTDIRTY;
+	track_exec_limit(mm, addr, addr + len, flags);
 	return addr;
 }
 
@@ -2757,6 +3257,7 @@ void exit_mmap(struct mm_struct *mm)
 	while (vma) {
 		if (vma->vm_flags & VM_ACCOUNT)
 			nr_accounted += vma_pages(vma);
+		vma->vm_mirror = NULL;
 		vma = remove_vma(vma);
 	}
 	vm_unacct_memory(nr_accounted);
@@ -2771,6 +3272,10 @@ int insert_vm_struct(struct mm_struct *mm, struct vm_area_struct *vma)
 	struct vm_area_struct *prev;
 	struct rb_node **rb_link, *rb_parent;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	struct vm_area_struct *vma_m = NULL;
+#endif
+
 	if (find_vma_links(mm, vma->vm_start, vma->vm_end,
 			   &prev, &rb_link, &rb_parent))
 		return -ENOMEM;
@@ -2778,6 +3283,9 @@ int insert_vm_struct(struct mm_struct *mm, struct vm_area_struct *vma)
 	     security_vm_enough_memory_mm(mm, vma_pages(vma)))
 		return -ENOMEM;
 
+	if (security_mmap_addr(vma->vm_start))
+		return -EPERM;
+
 	/*
 	 * The vm_pgoff of a purely anonymous vma should be irrelevant
 	 * until its first write fault, when page's anon_vma and index
@@ -2795,7 +3303,21 @@ int insert_vm_struct(struct mm_struct *mm, struct vm_area_struct *vma)
 		vma->vm_pgoff = vma->vm_start >> PAGE_SHIFT;
 	}
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_flags & VM_EXEC)) {
+		vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
+		if (!vma_m)
+			return -ENOMEM;
+	}
+#endif
+
 	vma_link(mm, vma, prev, rb_link, rb_parent);
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (vma_m)
+		BUG_ON(pax_mirror_vma(vma_m, vma));
+#endif
+
 	return 0;
 }
 
@@ -2814,6 +3336,8 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
 	struct rb_node **rb_link, *rb_parent;
 	bool faulted_in_anon_vma = true;
 
+	BUG_ON(vma->vm_mirror);
+
 	/*
 	 * If anonymous vma has not yet been faulted, update new pgoff
 	 * to match new location, to increase its chance of merging.
@@ -2880,24 +3404,67 @@ out:
 	return NULL;
 }
 
+#ifdef CONFIG_PAX_SEGMEXEC
+long pax_mirror_vma(struct vm_area_struct *vma_m, struct vm_area_struct *vma)
+{
+	struct vm_area_struct *prev_m;
+	struct rb_node **rb_link_m, *rb_parent_m;
+	struct mempolicy *pol_m;
+
+	BUG_ON(!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) || !(vma->vm_flags & VM_EXEC));
+	BUG_ON(vma->vm_mirror || vma_m->vm_mirror);
+	BUG_ON(!mpol_equal(vma_policy(vma), vma_policy(vma_m)));
+	*vma_m = *vma;
+	INIT_LIST_HEAD(&vma_m->anon_vma_chain);
+	if (anon_vma_clone(vma_m, vma))
+		return -ENOMEM;
+	pol_m = vma_policy(vma_m);
+	mpol_get(pol_m);
+	set_vma_policy(vma_m, pol_m);
+	vma_m->vm_start += SEGMEXEC_TASK_SIZE;
+	vma_m->vm_end += SEGMEXEC_TASK_SIZE;
+	vma_m->vm_flags &= ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT | VM_LOCKED);
+	vma_m->vm_page_prot = vm_get_page_prot(vma_m->vm_flags);
+	if (vma_m->vm_file)
+		get_file(vma_m->vm_file);
+	if (vma_m->vm_ops && vma_m->vm_ops->open)
+		vma_m->vm_ops->open(vma_m);
+	BUG_ON(find_vma_links(vma->vm_mm, vma_m->vm_start, vma_m->vm_end, &prev_m, &rb_link_m, &rb_parent_m));
+	vma_link(vma->vm_mm, vma_m, prev_m, rb_link_m, rb_parent_m);
+	vma_m->vm_mirror = vma;
+	vma->vm_mirror = vma_m;
+	return 0;
+}
+#endif
+
 /*
  * Return true if the calling process may expand its vm space by the passed
  * number of pages
  */
 bool may_expand_vm(struct mm_struct *mm, vm_flags_t flags, unsigned long npages)
 {
+	if ((mm->total_vm + npages) > (ULONG_MAX >> PAGE_SHIFT))
+		gr_learn_resource(current, RLIMIT_AS, ULONG_MAX, 1);
+	else
+		gr_learn_resource(current, RLIMIT_AS, (mm->total_vm + npages) << PAGE_SHIFT, 1);
+
 	if (mm->total_vm + npages > rlimit(RLIMIT_AS) >> PAGE_SHIFT)
 		return false;
 
-	if (is_data_mapping(flags) &&
-	    mm->data_vm + npages > rlimit(RLIMIT_DATA) >> PAGE_SHIFT) {
-		if (ignore_rlimit_data)
-			pr_warn_once("%s (%d): VmData %lu exceed data ulimit %lu. Will be forbidden soon.\n",
-				     current->comm, current->pid,
-				     (mm->data_vm + npages) << PAGE_SHIFT,
-				     rlimit(RLIMIT_DATA));
+	if (is_data_mapping(flags)) {
+		if ((mm->data_vm + npages) > (ULONG_MAX >> PAGE_SHIFT))
+			gr_learn_resource(current, RLIMIT_DATA, ULONG_MAX, 1);
 		else
-			return false;
+			gr_learn_resource(current, RLIMIT_DATA, (mm->data_vm + npages) << PAGE_SHIFT, 1);
+		if (mm->data_vm + npages > rlimit(RLIMIT_DATA) >> PAGE_SHIFT) {
+			if (ignore_rlimit_data)
+				pr_warn_once("%s (%d): VmData %lu exceed data ulimit %lu. Will be forbidden soon.\n",
+					     current->comm, current->pid,
+					     (mm->data_vm + npages) << PAGE_SHIFT,
+					     rlimit(RLIMIT_DATA));
+			else
+				return false;
+		}
 	}
 
 	return true;
@@ -2905,6 +3472,11 @@ bool may_expand_vm(struct mm_struct *mm, vm_flags_t flags, unsigned long npages)
 
 void vm_stat_account(struct mm_struct *mm, vm_flags_t flags, long npages)
 {
+
+#ifdef CONFIG_PAX_RANDMMAP
+	if (!(mm->pax_flags & MF_PAX_RANDMMAP) || (flags & (VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)))
+#endif
+
 	mm->total_vm += npages;
 
 	if (is_exec_mapping(flags))
@@ -2989,6 +3561,22 @@ static struct vm_area_struct *__install_special_mapping(
 	vma->vm_start = addr;
 	vma->vm_end = addr + len;
 
+#ifdef CONFIG_PAX_MPROTECT
+	if (mm->pax_flags & MF_PAX_MPROTECT) {
+#ifndef CONFIG_PAX_MPROTECT_COMPAT
+		if ((vm_flags & (VM_WRITE | VM_EXEC)) == (VM_WRITE | VM_EXEC))
+			return ERR_PTR(-EPERM);
+		if (!(vm_flags & VM_EXEC))
+			vm_flags &= ~VM_MAYEXEC;
+#else
+		if ((vm_flags & (VM_WRITE | VM_EXEC)) != VM_EXEC)
+			vm_flags &= ~(VM_EXEC | VM_MAYEXEC);
+#endif
+		else
+			vm_flags &= ~VM_MAYWRITE;
+	}
+#endif
+
 	vma->vm_flags = vm_flags | mm->def_flags | VM_DONTEXPAND | VM_SOFTDIRTY;
 	vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
 
diff --git a/mm/mprotect.c b/mm/mprotect.c
index b650c54..a3f3ca4 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -25,10 +25,18 @@
 #include <linux/perf_event.h>
 #include <linux/ksm.h>
 #include <linux/pkeys.h>
+#include <linux/sched/sysctl.h>
+
+#ifdef CONFIG_PAX_MPROTECT
+#include <linux/elf.h>
+#include <linux/binfmts.h>
+#endif
+
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
 #include <asm/cacheflush.h>
 #include <asm/tlbflush.h>
+#include <asm/mmu_context.h>
 
 #include "internal.h"
 
@@ -258,6 +266,48 @@ unsigned long change_protection(struct vm_area_struct *vma, unsigned long start,
 	return pages;
 }
 
+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
+/* called while holding the mmap semaphor for writing except stack expansion */
+void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot)
+{
+	unsigned long oldlimit, newlimit = 0UL;
+
+	if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || (__supported_pte_mask & _PAGE_NX))
+		return;
+
+	spin_lock(&mm->page_table_lock);
+	oldlimit = mm->context.user_cs_limit;
+	if ((prot & VM_EXEC) && oldlimit < end)
+		/* USER_CS limit moved up */
+		newlimit = end;
+	else if (!(prot & VM_EXEC) && start < oldlimit && oldlimit <= end)
+		/* USER_CS limit moved down */
+		newlimit = start;
+
+	if (newlimit) {
+		mm->context.user_cs_limit = newlimit;
+
+#ifdef CONFIG_SMP
+		wmb();
+		cpumask_clear(&mm->context.cpu_user_cs_mask);
+		cpumask_set_cpu(smp_processor_id(), &mm->context.cpu_user_cs_mask);
+#endif
+
+		set_user_cs(mm->context.user_cs_base, mm->context.user_cs_limit, smp_processor_id());
+	}
+	spin_unlock(&mm->page_table_lock);
+	if (newlimit == end) {
+		struct vm_area_struct *vma = find_vma(mm, oldlimit);
+
+		for (; vma && vma->vm_start < end; vma = vma->vm_next)
+			if (is_vm_hugetlb_page(vma))
+				hugetlb_change_protection(vma, vma->vm_start, vma->vm_end, vma->vm_page_prot);
+			else
+				change_protection(vma, vma->vm_start, vma->vm_end, vma->vm_page_prot, vma_wants_writenotify(vma), 0);
+	}
+}
+#endif
+
 int
 mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
 	unsigned long start, unsigned long end, unsigned long newflags)
@@ -270,11 +320,29 @@ mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
 	int error;
 	int dirty_accountable = 0;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	struct vm_area_struct *vma_m = NULL;
+	unsigned long start_m, end_m;
+
+	start_m = start + SEGMEXEC_TASK_SIZE;
+	end_m = end + SEGMEXEC_TASK_SIZE;
+#endif
+
 	if (newflags == oldflags) {
 		*pprev = vma;
 		return 0;
 	}
 
+	if (newflags & (VM_READ | VM_WRITE | VM_EXEC)) {
+		struct vm_area_struct *prev = vma->vm_prev, *next = vma->vm_next;
+
+		if (next && (next->vm_flags & VM_GROWSDOWN) && sysctl_heap_stack_gap > next->vm_start - end)
+			return -ENOMEM;
+
+		if (prev && (prev->vm_flags & VM_GROWSUP) && sysctl_heap_stack_gap > start - prev->vm_end)
+			return -ENOMEM;
+	}
+
 	/*
 	 * If we make a private mapping writable we increase our commit;
 	 * but (without finer accounting) cannot reduce our commit if we
@@ -295,6 +363,42 @@ mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
 		}
 	}
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if ((mm->pax_flags & MF_PAX_SEGMEXEC) && ((oldflags ^ newflags) & VM_EXEC)) {
+		if (start != vma->vm_start) {
+			error = split_vma(mm, vma, start, 1);
+			if (error)
+				goto fail;
+			BUG_ON(!*pprev || (*pprev)->vm_next == vma);
+			*pprev = (*pprev)->vm_next;
+		}
+
+		if (end != vma->vm_end) {
+			error = split_vma(mm, vma, end, 0);
+			if (error)
+				goto fail;
+		}
+
+		if (pax_find_mirror_vma(vma)) {
+			error = __do_munmap(mm, start_m, end_m - start_m);
+			if (error)
+				goto fail;
+		} else {
+			vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
+			if (!vma_m) {
+				error = -ENOMEM;
+				goto fail;
+			}
+			vma->vm_flags = newflags;
+			error = pax_mirror_vma(vma_m, vma);
+			if (error) {
+				vma->vm_flags = oldflags;
+				goto fail;
+			}
+		}
+	}
+#endif
+
 	/*
 	 * First try to merge with previous and/or next vma.
 	 */
@@ -326,7 +430,19 @@ success:
 	 * vm_flags and vm_page_prot are protected by the mmap_sem
 	 * held in write mode.
 	 */
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (newflags & VM_EXEC) && ((vma->vm_flags ^ newflags) & VM_READ))
+		pax_find_mirror_vma(vma)->vm_flags ^= VM_READ;
+#endif
+
 	vma->vm_flags = newflags;
+
+#ifdef CONFIG_PAX_MPROTECT
+	if (mm->binfmt && mm->binfmt->handle_mprotect)
+		mm->binfmt->handle_mprotect(vma, newflags);
+#endif
+
 	dirty_accountable = vma_wants_writenotify(vma);
 	vma_set_page_prot(vma);
 
@@ -360,7 +476,7 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
 	int error = -EINVAL;
 	const int grows = prot & (PROT_GROWSDOWN|PROT_GROWSUP);
 	const bool rier = (current->personality & READ_IMPLIES_EXEC) &&
-				(prot & PROT_READ);
+				(prot & (PROT_READ | PROT_WRITE));
 
 	prot &= ~(PROT_GROWSDOWN|PROT_GROWSUP);
 	if (grows == (PROT_GROWSDOWN|PROT_GROWSUP)) /* can't be both */
@@ -374,6 +490,17 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
 	end = start + len;
 	if (end <= start)
 		return -ENOMEM;
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (current->mm->pax_flags & MF_PAX_SEGMEXEC) {
+		if (end > SEGMEXEC_TASK_SIZE)
+			return -EINVAL;
+	} else
+#endif
+
+	if (end > TASK_SIZE)
+		return -EINVAL;
+
 	if (!arch_validate_prot(prot))
 		return -EINVAL;
 
@@ -406,6 +533,11 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
 	if (start > vma->vm_start)
 		prev = vma;
 
+#ifdef CONFIG_PAX_MPROTECT
+	if (current->mm->binfmt && current->mm->binfmt->handle_mprotect)
+		current->mm->binfmt->handle_mprotect(vma, calc_vm_prot_bits(prot, 0));
+#endif
+
 	for (nstart = start ; ; ) {
 		unsigned long newflags;
 		int pkey = arch_override_mprotect_pkey(vma, prot, -1);
@@ -421,6 +553,14 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
 
 		/* newflags >> 4 shift VM_MAY% in place of VM_% */
 		if ((newflags & ~(newflags >> 4)) & (VM_READ | VM_WRITE | VM_EXEC)) {
+			if (prot & (PROT_WRITE | PROT_EXEC))
+				gr_log_rwxmprotect(vma);
+
+			error = -EACCES;
+			goto out;
+		}
+
+		if (!gr_acl_handle_mprotect(vma->vm_file, prot)) {
 			error = -EACCES;
 			goto out;
 		}
@@ -435,6 +575,9 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
 		error = mprotect_fixup(vma, &prev, nstart, tmp, newflags);
 		if (error)
 			goto out;
+
+		track_exec_limit(current->mm, nstart, tmp, newflags);
+
 		nstart = tmp;
 
 		if (nstart < prev->vm_end)
diff --git a/mm/mremap.c b/mm/mremap.c
index 3fa0a467..a4eab87 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -142,6 +142,12 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
 			continue;
 		pte = ptep_get_and_clear(mm, old_addr, old_pte);
 		pte = move_pte(pte, new_vma->vm_page_prot, old_addr, new_addr);
+
+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
+		if (!(__supported_pte_mask & _PAGE_NX) && pte_present(pte) && (new_vma->vm_flags & (VM_PAGEEXEC | VM_EXEC)) == VM_PAGEEXEC)
+			pte = pte_exprotect(pte);
+#endif
+
 		pte = move_soft_dirty_pte(pte);
 		set_pte_at(mm, new_addr, new_pte, pte);
 	}
@@ -357,6 +363,11 @@ static struct vm_area_struct *vma_to_resize(unsigned long addr,
 	if (is_vm_hugetlb_page(vma))
 		return ERR_PTR(-EINVAL);
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (pax_find_mirror_vma(vma))
+		return ERR_PTR(-EINVAL);
+#endif
+
 	/* We can't remap across vm area boundaries */
 	if (old_len > vma->vm_end - addr)
 		return ERR_PTR(-EFAULT);
@@ -404,11 +415,19 @@ static unsigned long mremap_to(unsigned long addr, unsigned long old_len,
 	unsigned long ret = -EINVAL;
 	unsigned long charged = 0;
 	unsigned long map_flags;
+	unsigned long pax_task_size = TASK_SIZE;
 
 	if (offset_in_page(new_addr))
 		goto out;
 
-	if (new_len > TASK_SIZE || new_addr > TASK_SIZE - new_len)
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (mm->pax_flags & MF_PAX_SEGMEXEC)
+		pax_task_size = SEGMEXEC_TASK_SIZE;
+#endif
+
+	pax_task_size -= PAGE_SIZE;
+
+	if (new_len > TASK_SIZE || new_addr > pax_task_size - new_len)
 		goto out;
 
 	/* Ensure the old/new locations do not overlap */
@@ -481,6 +500,7 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
 	unsigned long ret = -EINVAL;
 	unsigned long charged = 0;
 	bool locked = false;
+	unsigned long pax_task_size = TASK_SIZE;
 
 	if (flags & ~(MREMAP_FIXED | MREMAP_MAYMOVE))
 		return ret;
@@ -502,6 +522,17 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
 	if (!new_len)
 		return ret;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (mm->pax_flags & MF_PAX_SEGMEXEC)
+		pax_task_size = SEGMEXEC_TASK_SIZE;
+#endif
+
+	pax_task_size -= PAGE_SIZE;
+
+	if (new_len > pax_task_size || addr > pax_task_size-new_len ||
+	    old_len > pax_task_size || addr > pax_task_size-old_len)
+		return ret;
+
 	down_write(&current->mm->mmap_sem);
 
 	if (flags & MREMAP_FIXED) {
@@ -552,6 +583,7 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
 				new_addr = addr;
 			}
 			ret = addr;
+			track_exec_limit(vma->vm_mm, vma->vm_start, addr + new_len, vma->vm_flags);
 			goto out;
 		}
 	}
@@ -575,7 +607,12 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
 			goto out;
 		}
 
+		map_flags = vma->vm_flags;
 		ret = move_vma(vma, addr, old_len, new_len, new_addr, &locked);
+		if (!(ret & ~PAGE_MASK)) {
+			track_exec_limit(current->mm, addr, addr + old_len, 0UL);
+			track_exec_limit(current->mm, new_addr, new_addr + new_len, map_flags);
+		}
 	}
 out:
 	if (offset_in_page(ret)) {
diff --git a/mm/nommu.c b/mm/nommu.c
index c8bd59a..82b24ab 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -48,7 +48,6 @@ unsigned long max_mapnr;
 EXPORT_SYMBOL(max_mapnr);
 unsigned long highest_memmap_pfn;
 int sysctl_nr_trim_pages = CONFIG_NOMMU_INITIAL_TRIM_EXCESS;
-int heap_stack_gap = 0;
 
 atomic_long_t mmap_pages_allocated;
 
@@ -836,15 +835,6 @@ struct vm_area_struct *find_vma(struct mm_struct *mm, unsigned long addr)
 EXPORT_SYMBOL(find_vma);
 
 /*
- * find a VMA
- * - we don't extend stack VMAs under NOMMU conditions
- */
-struct vm_area_struct *find_extend_vma(struct mm_struct *mm, unsigned long addr)
-{
-	return find_vma(mm, addr);
-}
-
-/*
  * expand a stack to a given address
  * - not supported under NOMMU conditions
  */
@@ -1509,6 +1499,7 @@ int split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
 
 	/* most fields are the same, copy all, and then fixup */
 	*new = *vma;
+	INIT_LIST_HEAD(&new->anon_vma_chain);
 	*region = *vma->vm_region;
 	new->vm_region = region;
 
@@ -1815,8 +1806,8 @@ void filemap_map_pages(struct vm_area_struct *vma, struct vm_fault *vmf)
 }
 EXPORT_SYMBOL(filemap_map_pages);
 
-static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
-		unsigned long addr, void *buf, int len, int write)
+static ssize_t __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
+		unsigned long addr, void *buf, size_t len, int write)
 {
 	struct vm_area_struct *vma;
 
@@ -1857,8 +1848,8 @@ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
  *
  * The caller must hold a reference on @mm.
  */
-int access_remote_vm(struct mm_struct *mm, unsigned long addr,
-		void *buf, int len, int write)
+ssize_t access_remote_vm(struct mm_struct *mm, unsigned long addr,
+		void *buf, size_t len, int write)
 {
 	return __access_remote_vm(NULL, mm, addr, buf, len, write);
 }
@@ -1867,7 +1858,7 @@ int access_remote_vm(struct mm_struct *mm, unsigned long addr,
  * Access another process' address space.
  * - source/target buffer must be kernel space
  */
-int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write)
+ssize_t access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, size_t len, int write)
 {
 	struct mm_struct *mm;
 
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index bc5149d..3f523f3 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -870,7 +870,7 @@ static long long pos_ratio_polynom(unsigned long setpoint,
  *   card's wb_dirty may rush to many times higher than wb_setpoint.
  * - the wb dirty thresh drops quickly due to change of JBOD workload
  */
-static void wb_position_ratio(struct dirty_throttle_control *dtc)
+static void __intentional_overflow(-1) wb_position_ratio(struct dirty_throttle_control *dtc)
 {
 	struct bdi_writeback *wb = dtc->wb;
 	unsigned long write_bw = wb->avg_write_bandwidth;
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 898fe3f..78ad9e4 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -63,6 +63,7 @@
 #include <linux/sched/rt.h>
 #include <linux/page_owner.h>
 #include <linux/kthread.h>
+#include <linux/random.h>
 
 #include <asm/sections.h>
 #include <asm/tlbflush.h>
@@ -593,7 +594,7 @@ static inline void clear_page_guard(struct zone *zone, struct page *page,
 		__mod_zone_freepage_state(zone, (1 << order), migratetype);
 }
 #else
-struct page_ext_operations debug_guardpage_ops = { NULL, };
+struct page_ext_operations debug_guardpage_ops = { .need = NULL, .init = NULL };
 static inline void set_page_guard(struct zone *zone, struct page *page,
 				unsigned int order, int migratetype) {}
 static inline void clear_page_guard(struct zone *zone, struct page *page,
@@ -1027,6 +1028,10 @@ static bool free_pages_prepare(struct page *page, unsigned int order)
 	bool compound = PageCompound(page);
 	int i, bad = 0;
 
+#ifdef CONFIG_PAX_MEMORY_SANITIZE
+	unsigned long index = 1UL << order;
+#endif
+
 	VM_BUG_ON_PAGE(PageTail(page), page);
 	VM_BUG_ON_PAGE(compound && compound_order(page) != order, page);
 
@@ -1053,6 +1058,12 @@ static bool free_pages_prepare(struct page *page, unsigned int order)
 		debug_check_no_obj_freed(page_address(page),
 					   PAGE_SIZE << order);
 	}
+
+#ifdef CONFIG_PAX_MEMORY_SANITIZE
+	for (; index; --index)
+		sanitize_highpage(page + index - 1);
+#endif
+
 	arch_free_page(page, order);
 	kernel_poison_pages(page, 1 << order, 0);
 	kernel_map_pages(page, 1 << order, 0);
@@ -1076,6 +1087,20 @@ static void __free_pages_ok(struct page *page, unsigned int order)
 	local_irq_restore(flags);
 }
 
+bool __meminitdata extra_latent_entropy;
+
+static int __init setup_pax_extra_latent_entropy(char *str)
+{
+	extra_latent_entropy = true;
+	return 0;
+}
+early_param("pax_extra_latent_entropy", setup_pax_extra_latent_entropy);
+
+#ifdef LATENT_ENTROPY_PLUGIN
+volatile u64 latent_entropy __latent_entropy;
+EXPORT_SYMBOL(latent_entropy);
+#endif
+
 static void __init __free_pages_boot_core(struct page *page,
 					unsigned long pfn, unsigned int order)
 {
@@ -1092,6 +1117,21 @@ static void __init __free_pages_boot_core(struct page *page,
 	__ClearPageReserved(p);
 	set_page_count(p, 0);
 
+	if (extra_latent_entropy && !PageHighMem(page) && page_to_pfn(page) < 0x100000) {
+		u64 hash = 0;
+		size_t index, end = PAGE_SIZE * nr_pages / sizeof hash;
+		const u64 *data = lowmem_page_address(page);
+
+		for (index = 0; index < end; index++)
+			hash ^= hash + data[index];
+#ifdef LATENT_ENTROPY_PLUGIN
+		latent_entropy ^= hash;
+		add_device_randomness((const void *)&latent_entropy, sizeof(latent_entropy));
+#else
+		add_device_randomness((const void *)&hash, sizeof(hash));
+#endif
+	}
+
 	page_zone(page)->managed_pages += nr_pages;
 	set_page_refcounted(page);
 	__free_pages(page, order);
@@ -1148,7 +1188,6 @@ static inline bool __meminit meminit_pfn_in_nid(unsigned long pfn, int node,
 }
 #endif
 
-
 void __init __free_pages_bootmem(struct page *page, unsigned long pfn,
 							unsigned int order)
 {
@@ -1512,8 +1551,8 @@ static inline int check_new_page(struct page *page)
 
 static inline bool free_pages_prezeroed(bool poisoned)
 {
-	return IS_ENABLED(CONFIG_PAGE_POISONING_ZERO) &&
-		page_poisoning_enabled() && poisoned;
+	return IS_ENABLED(CONFIG_PAX_MEMORY_SANITIZE) ||
+		(IS_ENABLED(CONFIG_PAGE_POISONING_ZERO) && page_poisoning_enabled() && poisoned);
 }
 
 static int prep_new_page(struct page *page, unsigned int order, gfp_t gfp_flags,
@@ -1526,8 +1565,12 @@ static int prep_new_page(struct page *page, unsigned int order, gfp_t gfp_flags,
 		struct page *p = page + i;
 		if (unlikely(check_new_page(p)))
 			return 1;
+
+#ifndef CONFIG_PAX_MEMORY_SANITIZE
 		if (poisoned)
 			poisoned &= page_is_poisoned(p);
+#endif
+
 	}
 
 	set_page_private(page, 0);
@@ -2074,8 +2117,9 @@ static void drain_pages(unsigned int cpu)
  * The CPU has to be pinned. When zone parameter is non-NULL, spill just
  * the single zone's pages.
  */
-void drain_local_pages(struct zone *zone)
+void drain_local_pages(void *_zone)
 {
+	struct zone *zone = _zone;
 	int cpu = smp_processor_id();
 
 	if (zone)
@@ -2135,8 +2179,7 @@ void drain_all_pages(struct zone *zone)
 		else
 			cpumask_clear_cpu(cpu, &cpus_with_pcps);
 	}
-	on_each_cpu_mask(&cpus_with_pcps, (smp_call_func_t) drain_local_pages,
-								zone, 1);
+	on_each_cpu_mask(&cpus_with_pcps, drain_local_pages, zone, 1);
 }
 
 #ifdef CONFIG_HIBERNATION
@@ -2400,7 +2443,7 @@ struct page *buffered_rmqueue(struct zone *preferred_zone,
 	}
 
 	__mod_zone_page_state(zone, NR_ALLOC_BATCH, -(1 << order));
-	if (atomic_long_read(&zone->vm_stat[NR_ALLOC_BATCH]) <= 0 &&
+	if (atomic_long_read_unchecked(&zone->vm_stat[NR_ALLOC_BATCH]) <= 0 &&
 	    !test_bit(ZONE_FAIR_DEPLETED, &zone->flags))
 		set_bit(ZONE_FAIR_DEPLETED, &zone->flags);
 
@@ -2617,7 +2660,7 @@ static void reset_alloc_batches(struct zone *preferred_zone)
 	do {
 		mod_zone_page_state(zone, NR_ALLOC_BATCH,
 			high_wmark_pages(zone) - low_wmark_pages(zone) -
-			atomic_long_read(&zone->vm_stat[NR_ALLOC_BATCH]));
+			atomic_long_read_unchecked(&zone->vm_stat[NR_ALLOC_BATCH]));
 		clear_bit(ZONE_FAIR_DEPLETED, &zone->flags);
 	} while (zone++ != preferred_zone);
 }
@@ -6371,7 +6414,7 @@ static void __setup_per_zone_wmarks(void)
 
 		__mod_zone_page_state(zone, NR_ALLOC_BATCH,
 			high_wmark_pages(zone) - low_wmark_pages(zone) -
-			atomic_long_read(&zone->vm_stat[NR_ALLOC_BATCH]));
+			atomic_long_read_unchecked(&zone->vm_stat[NR_ALLOC_BATCH]));
 
 		spin_unlock_irqrestore(&zone->lock, flags);
 	}
diff --git a/mm/percpu.c b/mm/percpu.c
index 0c59684..5176325 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -112,7 +112,7 @@ struct pcpu_chunk {
 	int			map_used;	/* # of map entries used before the sentry */
 	int			map_alloc;	/* # of map entries allocated */
 	int			*map;		/* allocation map */
-	struct work_struct	map_extend_work;/* async ->map[] extension */
+	struct list_head	map_extend_list;/* on pcpu_map_extend_chunks */
 
 	void			*data;		/* chunk data */
 	int			first_free;	/* no free below this */
@@ -133,7 +133,7 @@ static unsigned int pcpu_low_unit_cpu __read_mostly;
 static unsigned int pcpu_high_unit_cpu __read_mostly;
 
 /* the address of the first chunk which starts with the kernel static area */
-void *pcpu_base_addr __read_mostly;
+void *pcpu_base_addr __read_only;
 EXPORT_SYMBOL_GPL(pcpu_base_addr);
 
 static const int *pcpu_unit_map __read_mostly;		/* cpu -> unit */
@@ -162,10 +162,13 @@ static struct pcpu_chunk *pcpu_reserved_chunk;
 static int pcpu_reserved_chunk_limit;
 
 static DEFINE_SPINLOCK(pcpu_lock);	/* all internal data structures */
-static DEFINE_MUTEX(pcpu_alloc_mutex);	/* chunk create/destroy, [de]pop */
+static DEFINE_MUTEX(pcpu_alloc_mutex);	/* chunk create/destroy, [de]pop, map ext */
 
 static struct list_head *pcpu_slot __read_mostly; /* chunk list slots */
 
+/* chunks which need their map areas extended, protected by pcpu_lock */
+static LIST_HEAD(pcpu_map_extend_chunks);
+
 /*
  * The number of empty populated pages, protected by pcpu_lock.  The
  * reserved chunk doesn't contribute to the count.
@@ -395,13 +398,19 @@ static int pcpu_need_to_extend(struct pcpu_chunk *chunk, bool is_atomic)
 {
 	int margin, new_alloc;
 
+	lockdep_assert_held(&pcpu_lock);
+
 	if (is_atomic) {
 		margin = 3;
 
 		if (chunk->map_alloc <
-		    chunk->map_used + PCPU_ATOMIC_MAP_MARGIN_LOW &&
-		    pcpu_async_enabled)
-			schedule_work(&chunk->map_extend_work);
+		    chunk->map_used + PCPU_ATOMIC_MAP_MARGIN_LOW) {
+			if (list_empty(&chunk->map_extend_list)) {
+				list_add_tail(&chunk->map_extend_list,
+					      &pcpu_map_extend_chunks);
+				pcpu_schedule_balance_work();
+			}
+		}
 	} else {
 		margin = PCPU_ATOMIC_MAP_MARGIN_HIGH;
 	}
@@ -435,6 +444,8 @@ static int pcpu_extend_area_map(struct pcpu_chunk *chunk, int new_alloc)
 	size_t old_size = 0, new_size = new_alloc * sizeof(new[0]);
 	unsigned long flags;
 
+	lockdep_assert_held(&pcpu_alloc_mutex);
+
 	new = pcpu_mem_zalloc(new_size);
 	if (!new)
 		return -ENOMEM;
@@ -467,20 +478,6 @@ out_unlock:
 	return 0;
 }
 
-static void pcpu_map_extend_workfn(struct work_struct *work)
-{
-	struct pcpu_chunk *chunk = container_of(work, struct pcpu_chunk,
-						map_extend_work);
-	int new_alloc;
-
-	spin_lock_irq(&pcpu_lock);
-	new_alloc = pcpu_need_to_extend(chunk, false);
-	spin_unlock_irq(&pcpu_lock);
-
-	if (new_alloc)
-		pcpu_extend_area_map(chunk, new_alloc);
-}
-
 /**
  * pcpu_fit_in_area - try to fit the requested allocation in a candidate area
  * @chunk: chunk the candidate area belongs to
@@ -740,7 +737,7 @@ static struct pcpu_chunk *pcpu_alloc_chunk(void)
 	chunk->map_used = 1;
 
 	INIT_LIST_HEAD(&chunk->list);
-	INIT_WORK(&chunk->map_extend_work, pcpu_map_extend_workfn);
+	INIT_LIST_HEAD(&chunk->map_extend_list);
 	chunk->free_size = pcpu_unit_size;
 	chunk->contig_hint = pcpu_unit_size;
 
@@ -895,6 +892,9 @@ static void __percpu *pcpu_alloc(size_t size, size_t align, bool reserved,
 		return NULL;
 	}
 
+	if (!is_atomic)
+		mutex_lock(&pcpu_alloc_mutex);
+
 	spin_lock_irqsave(&pcpu_lock, flags);
 
 	/* serve reserved allocations from the reserved chunk if available */
@@ -967,12 +967,9 @@ restart:
 	if (is_atomic)
 		goto fail;
 
-	mutex_lock(&pcpu_alloc_mutex);
-
 	if (list_empty(&pcpu_slot[pcpu_nr_slots - 1])) {
 		chunk = pcpu_create_chunk();
 		if (!chunk) {
-			mutex_unlock(&pcpu_alloc_mutex);
 			err = "failed to allocate new chunk";
 			goto fail;
 		}
@@ -983,7 +980,6 @@ restart:
 		spin_lock_irqsave(&pcpu_lock, flags);
 	}
 
-	mutex_unlock(&pcpu_alloc_mutex);
 	goto restart;
 
 area_found:
@@ -993,8 +989,6 @@ area_found:
 	if (!is_atomic) {
 		int page_start, page_end, rs, re;
 
-		mutex_lock(&pcpu_alloc_mutex);
-
 		page_start = PFN_DOWN(off);
 		page_end = PFN_UP(off + size);
 
@@ -1005,7 +999,6 @@ area_found:
 
 			spin_lock_irqsave(&pcpu_lock, flags);
 			if (ret) {
-				mutex_unlock(&pcpu_alloc_mutex);
 				pcpu_free_area(chunk, off, &occ_pages);
 				err = "failed to populate";
 				goto fail_unlock;
@@ -1045,6 +1038,8 @@ fail:
 		/* see the flag handling in pcpu_blance_workfn() */
 		pcpu_atomic_alloc_failed = true;
 		pcpu_schedule_balance_work();
+	} else {
+		mutex_unlock(&pcpu_alloc_mutex);
 	}
 	return NULL;
 }
@@ -1129,6 +1124,7 @@ static void pcpu_balance_workfn(struct work_struct *work)
 		if (chunk == list_first_entry(free_head, struct pcpu_chunk, list))
 			continue;
 
+		list_del_init(&chunk->map_extend_list);
 		list_move(&chunk->list, &to_free);
 	}
 
@@ -1146,6 +1142,25 @@ static void pcpu_balance_workfn(struct work_struct *work)
 		pcpu_destroy_chunk(chunk);
 	}
 
+	/* service chunks which requested async area map extension */
+	do {
+		int new_alloc = 0;
+
+		spin_lock_irq(&pcpu_lock);
+
+		chunk = list_first_entry_or_null(&pcpu_map_extend_chunks,
+					struct pcpu_chunk, map_extend_list);
+		if (chunk) {
+			list_del_init(&chunk->map_extend_list);
+			new_alloc = pcpu_need_to_extend(chunk, false);
+		}
+
+		spin_unlock_irq(&pcpu_lock);
+
+		if (new_alloc)
+			pcpu_extend_area_map(chunk, new_alloc);
+	} while (chunk);
+
 	/*
 	 * Ensure there are certain number of free populated pages for
 	 * atomic allocs.  Fill up from the most packed so that atomic
@@ -1644,7 +1659,7 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai,
 	 */
 	schunk = memblock_virt_alloc(pcpu_chunk_struct_size, 0);
 	INIT_LIST_HEAD(&schunk->list);
-	INIT_WORK(&schunk->map_extend_work, pcpu_map_extend_workfn);
+	INIT_LIST_HEAD(&schunk->map_extend_list);
 	schunk->base_addr = base_addr;
 	schunk->map = smap;
 	schunk->map_alloc = ARRAY_SIZE(smap);
@@ -1673,7 +1688,7 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai,
 	if (dyn_size) {
 		dchunk = memblock_virt_alloc(pcpu_chunk_struct_size, 0);
 		INIT_LIST_HEAD(&dchunk->list);
-		INIT_WORK(&dchunk->map_extend_work, pcpu_map_extend_workfn);
+		INIT_LIST_HEAD(&dchunk->map_extend_list);
 		dchunk->base_addr = base_addr;
 		dchunk->map = dmap;
 		dchunk->map_alloc = ARRAY_SIZE(dmap);
diff --git a/mm/process_vm_access.c b/mm/process_vm_access.c
index 07514d4..9989090 100644
--- a/mm/process_vm_access.c
+++ b/mm/process_vm_access.c
@@ -13,6 +13,7 @@
 #include <linux/uio.h>
 #include <linux/sched.h>
 #include <linux/highmem.h>
+#include <linux/security.h>
 #include <linux/ptrace.h>
 #include <linux/slab.h>
 #include <linux/syscalls.h>
@@ -159,19 +160,19 @@ static ssize_t process_vm_rw_core(pid_t pid, struct iov_iter *iter,
 	ssize_t iov_len;
 	size_t total_len = iov_iter_count(iter);
 
+	return -ENOSYS; // PaX: until properly audited
+
 	/*
 	 * Work out how many pages of struct pages we're going to need
 	 * when eventually calling get_user_pages
 	 */
 	for (i = 0; i < riovcnt; i++) {
 		iov_len = rvec[i].iov_len;
-		if (iov_len > 0) {
-			nr_pages_iov = ((unsigned long)rvec[i].iov_base
-					+ iov_len)
-				/ PAGE_SIZE - (unsigned long)rvec[i].iov_base
-				/ PAGE_SIZE + 1;
-			nr_pages = max(nr_pages, nr_pages_iov);
-		}
+		if (iov_len <= 0)
+			continue;
+		nr_pages_iov = ((unsigned long)rvec[i].iov_base + iov_len) / PAGE_SIZE -
+				(unsigned long)rvec[i].iov_base / PAGE_SIZE + 1;
+		nr_pages = max(nr_pages, nr_pages_iov);
 	}
 
 	if (nr_pages == 0)
@@ -199,6 +200,11 @@ static ssize_t process_vm_rw_core(pid_t pid, struct iov_iter *iter,
 		goto free_proc_pages;
 	}
 
+	if (gr_handle_ptrace(task, vm_write ? PTRACE_POKETEXT : PTRACE_ATTACH)) {
+		rc = -EPERM;
+		goto put_task_struct;
+	}
+
 	mm = mm_access(task, PTRACE_MODE_ATTACH_REALCREDS);
 	if (!mm || IS_ERR(mm)) {
 		rc = IS_ERR(mm) ? PTR_ERR(mm) : -ESRCH;
diff --git a/mm/readahead.c b/mm/readahead.c
index 40be3ae..0d20d87 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -80,7 +80,7 @@ static void read_cache_pages_invalidate_pages(struct address_space *mapping,
  * Hides the details of the LRU cache etc from the filesystems.
  */
 int read_cache_pages(struct address_space *mapping, struct list_head *pages,
-			int (*filler)(void *, struct page *), void *data)
+			filler_t *filler, void *data)
 {
 	struct page *page;
 	int ret = 0;
diff --git a/mm/rmap.c b/mm/rmap.c
index 3ebf9c4..ec385cd 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -172,6 +172,10 @@ int anon_vma_prepare(struct vm_area_struct *vma)
 	struct anon_vma *anon_vma = vma->anon_vma;
 	struct anon_vma_chain *avc;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+	struct anon_vma_chain *avc_m = NULL;
+#endif
+
 	might_sleep();
 	if (unlikely(!anon_vma)) {
 		struct mm_struct *mm = vma->vm_mm;
@@ -181,6 +185,12 @@ int anon_vma_prepare(struct vm_area_struct *vma)
 		if (!avc)
 			goto out_enomem;
 
+#ifdef CONFIG_PAX_SEGMEXEC
+		avc_m = anon_vma_chain_alloc(GFP_KERNEL);
+		if (!avc_m)
+			goto out_enomem_free_avc;
+#endif
+
 		anon_vma = find_mergeable_anon_vma(vma);
 		allocated = NULL;
 		if (!anon_vma) {
@@ -194,6 +204,19 @@ int anon_vma_prepare(struct vm_area_struct *vma)
 		/* page_table_lock to protect against threads */
 		spin_lock(&mm->page_table_lock);
 		if (likely(!vma->anon_vma)) {
+
+#ifdef CONFIG_PAX_SEGMEXEC
+			struct vm_area_struct *vma_m = pax_find_mirror_vma(vma);
+
+			if (vma_m) {
+				BUG_ON(vma_m->anon_vma);
+				vma_m->anon_vma = anon_vma;
+				anon_vma_chain_link(vma_m, avc_m, anon_vma);
+				anon_vma->degree++;
+				avc_m = NULL;
+			}
+#endif
+
 			vma->anon_vma = anon_vma;
 			anon_vma_chain_link(vma, avc, anon_vma);
 			/* vma reference or self-parent link for new root */
@@ -206,12 +229,24 @@ int anon_vma_prepare(struct vm_area_struct *vma)
 
 		if (unlikely(allocated))
 			put_anon_vma(allocated);
+
+#ifdef CONFIG_PAX_SEGMEXEC
+		if (unlikely(avc_m))
+			anon_vma_chain_free(avc_m);
+#endif
+
 		if (unlikely(avc))
 			anon_vma_chain_free(avc);
 	}
 	return 0;
 
  out_enomem_free_avc:
+
+#ifdef CONFIG_PAX_SEGMEXEC
+	if (avc_m)
+		anon_vma_chain_free(avc_m);
+#endif
+
 	anon_vma_chain_free(avc);
  out_enomem:
 	return -ENOMEM;
@@ -255,7 +290,7 @@ static inline void unlock_anon_vma_root(struct anon_vma *root)
  * good chance of avoiding scanning the whole hierarchy when it searches where
  * page is mapped.
  */
-int anon_vma_clone(struct vm_area_struct *dst, struct vm_area_struct *src)
+int anon_vma_clone(struct vm_area_struct *dst, const struct vm_area_struct *src)
 {
 	struct anon_vma_chain *avc, *pavc;
 	struct anon_vma *root = NULL;
@@ -309,7 +344,7 @@ int anon_vma_clone(struct vm_area_struct *dst, struct vm_area_struct *src)
  * the corresponding VMA in the parent process is attached to.
  * Returns 0 on success, non-zero on failure.
  */
-int anon_vma_fork(struct vm_area_struct *vma, struct vm_area_struct *pvma)
+int anon_vma_fork(struct vm_area_struct *vma, const struct vm_area_struct *pvma)
 {
 	struct anon_vma_chain *avc;
 	struct anon_vma *anon_vma;
@@ -429,10 +464,10 @@ static void anon_vma_ctor(void *data)
 void __init anon_vma_init(void)
 {
 	anon_vma_cachep = kmem_cache_create("anon_vma", sizeof(struct anon_vma),
-			0, SLAB_DESTROY_BY_RCU|SLAB_PANIC|SLAB_ACCOUNT,
+			0, SLAB_DESTROY_BY_RCU|SLAB_PANIC|SLAB_ACCOUNT|SLAB_NO_SANITIZE,
 			anon_vma_ctor);
 	anon_vma_chain_cachep = KMEM_CACHE(anon_vma_chain,
-			SLAB_PANIC|SLAB_ACCOUNT);
+			SLAB_PANIC|SLAB_ACCOUNT|SLAB_NO_SANITIZE);
 }
 
 /*
diff --git a/mm/shmem.c b/mm/shmem.c
index 719bd6b..6b464fb 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -33,7 +33,7 @@
 #include <linux/swap.h>
 #include <linux/uio.h>
 
-static struct vfsmount *shm_mnt;
+struct vfsmount *shm_mnt;
 
 #ifdef CONFIG_SHMEM
 /*
@@ -82,7 +82,7 @@ static struct vfsmount *shm_mnt;
 #define BOGO_DIRENT_SIZE 20
 
 /* Symlink up to this size is kmalloc'ed instead of using a swappable page */
-#define SHORT_SYMLINK_LEN 128
+#define SHORT_SYMLINK_LEN 64
 
 /*
  * shmem_fallocate communicates with shmem_fault or shmem_writepage via
@@ -2665,6 +2665,23 @@ static int shmem_xattr_handler_set(const struct xattr_handler *handler,
 	return simple_xattr_set(&info->xattrs, name, value, size, flags);
 }
 
+#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
+static int shmem_user_xattr_handler_set(const struct xattr_handler *handler,
+				   struct dentry *dentry, const char *name,
+				   const void *value, size_t size, int flags)
+{
+	struct shmem_inode_info *info = SHMEM_I(d_inode(dentry));
+
+	if (strcmp(name, XATTR_NAME_PAX_FLAGS))
+		return -EOPNOTSUPP;
+	if (size > 8)
+		return -EINVAL;
+
+	name = xattr_full_name(handler, name);
+	return simple_xattr_set(&info->xattrs, name, value, size, flags);
+}
+#endif
+
 static const struct xattr_handler shmem_security_xattr_handler = {
 	.prefix = XATTR_SECURITY_PREFIX,
 	.get = shmem_xattr_handler_get,
@@ -2677,6 +2694,14 @@ static const struct xattr_handler shmem_trusted_xattr_handler = {
 	.set = shmem_xattr_handler_set,
 };
 
+#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
+static const struct xattr_handler shmem_user_xattr_handler = {
+	.prefix = XATTR_USER_PREFIX,
+	.get = shmem_xattr_handler_get,
+	.set = shmem_user_xattr_handler_set,
+};
+#endif
+
 static const struct xattr_handler *shmem_xattr_handlers[] = {
 #ifdef CONFIG_TMPFS_POSIX_ACL
 	&posix_acl_access_xattr_handler,
@@ -2684,6 +2709,11 @@ static const struct xattr_handler *shmem_xattr_handlers[] = {
 #endif
 	&shmem_security_xattr_handler,
 	&shmem_trusted_xattr_handler,
+
+#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
+	&shmem_user_xattr_handler,
+#endif
+
 	NULL
 };
 
@@ -3044,8 +3074,7 @@ int shmem_fill_super(struct super_block *sb, void *data, int silent)
 	int err = -ENOMEM;
 
 	/* Round up to L1_CACHE_BYTES to resist false sharing */
-	sbinfo = kzalloc(max((int)sizeof(struct shmem_sb_info),
-				L1_CACHE_BYTES), GFP_KERNEL);
+	sbinfo = kzalloc(max(sizeof(struct shmem_sb_info), L1_CACHE_BYTES), GFP_KERNEL);
 	if (!sbinfo)
 		return -ENOMEM;
 
diff --git a/mm/slab.c b/mm/slab.c
index 17e2848..15840f7 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -116,6 +116,7 @@
 #include	<linux/kmemcheck.h>
 #include	<linux/memory.h>
 #include	<linux/prefetch.h>
+#include	<linux/vmalloc.h>
 
 #include	<net/sock.h>
 
@@ -279,10 +280,12 @@ static void kmem_cache_node_init(struct kmem_cache_node *parent)
 		if ((x)->max_freeable < i)				\
 			(x)->max_freeable = i;				\
 	} while (0)
-#define STATS_INC_ALLOCHIT(x)	atomic_inc(&(x)->allochit)
-#define STATS_INC_ALLOCMISS(x)	atomic_inc(&(x)->allocmiss)
-#define STATS_INC_FREEHIT(x)	atomic_inc(&(x)->freehit)
-#define STATS_INC_FREEMISS(x)	atomic_inc(&(x)->freemiss)
+#define STATS_INC_ALLOCHIT(x)	atomic_inc_unchecked(&(x)->allochit)
+#define STATS_INC_ALLOCMISS(x)	atomic_inc_unchecked(&(x)->allocmiss)
+#define STATS_INC_FREEHIT(x)	atomic_inc_unchecked(&(x)->freehit)
+#define STATS_INC_FREEMISS(x)	atomic_inc_unchecked(&(x)->freemiss)
+#define STATS_INC_SANITIZED(x)	atomic_inc_unchecked(&(x)->sanitized)
+#define STATS_INC_NOT_SANITIZED(x) atomic_inc_unchecked(&(x)->not_sanitized)
 #else
 #define	STATS_INC_ACTIVE(x)	do { } while (0)
 #define	STATS_DEC_ACTIVE(x)	do { } while (0)
@@ -299,6 +302,8 @@ static void kmem_cache_node_init(struct kmem_cache_node *parent)
 #define STATS_INC_ALLOCMISS(x)	do { } while (0)
 #define STATS_INC_FREEHIT(x)	do { } while (0)
 #define STATS_INC_FREEMISS(x)	do { } while (0)
+#define STATS_INC_SANITIZED(x)	do { } while (0)
+#define STATS_INC_NOT_SANITIZED(x) do { } while (0)
 #endif
 
 #if DEBUG
@@ -405,7 +410,7 @@ static inline void *index_to_obj(struct kmem_cache *cache, struct page *page,
  *   reciprocal_divide(offset, cache->reciprocal_buffer_size)
  */
 static inline unsigned int obj_to_index(const struct kmem_cache *cache,
-					const struct page *page, void *obj)
+					const struct page *page, const void *obj)
 {
 	u32 offset = (obj - page->s_mem);
 	return reciprocal_divide(offset, cache->reciprocal_buffer_size);
@@ -1263,7 +1268,7 @@ void __init kmem_cache_init(void)
 	 * structures first.  Without this, further allocations will bug.
 	 */
 	kmalloc_caches[INDEX_NODE] = create_kmalloc_cache("kmalloc-node",
-				kmalloc_size(INDEX_NODE), ARCH_KMALLOC_FLAGS);
+				kmalloc_size(INDEX_NODE), SLAB_USERCOPY | ARCH_KMALLOC_FLAGS);
 	slab_state = PARTIAL_NODE;
 	setup_kmalloc_cache_index_table();
 
@@ -1508,7 +1513,7 @@ static void store_stackinfo(struct kmem_cache *cachep, unsigned long *addr,
 
 		while (!kstack_end(sptr)) {
 			svalue = *sptr++;
-			if (kernel_text_address(svalue)) {
+			if (kernel_text_address(ktva_ktla(svalue))) {
 				*addr++ = svalue;
 				size -= sizeof(unsigned long);
 				if (size <= sizeof(unsigned long))
@@ -1895,7 +1900,7 @@ __kmem_cache_alias(const char *name, size_t size, size_t align,
 
 	cachep = find_mergeable(size, align, flags, name, ctor);
 	if (cachep) {
-		cachep->refcount++;
+		atomic_inc(&cachep->refcount);
 
 		/*
 		 * Adjust the object sizes so that we clear
@@ -2024,6 +2029,8 @@ __kmem_cache_create (struct kmem_cache *cachep, unsigned long flags)
 #endif
 #endif
 
+	flags = pax_sanitize_slab_flags(flags);
+
 	/*
 	 * Check that size is in terms of words.  This is needed to avoid
 	 * unaligned accesses for some archs when redzoning is used, and makes
@@ -3332,6 +3339,20 @@ static inline void __cache_free(struct kmem_cache *cachep, void *objp,
 	kasan_slab_free(cachep, objp);
 
 	check_irq_off();
+
+#ifdef CONFIG_PAX_MEMORY_SANITIZE
+	if (cachep->flags & (SLAB_POISON | SLAB_NO_SANITIZE))
+		STATS_INC_NOT_SANITIZED(cachep);
+	else {
+		memset(objp, PAX_MEMORY_SANITIZE_VALUE, cachep->object_size);
+
+		if (cachep->ctor)
+			cachep->ctor(objp);
+
+		STATS_INC_SANITIZED(cachep);
+	}
+#endif
+
 	kmemleak_free_recursive(objp, cachep->flags);
 	objp = cache_free_debugcheck(cachep, objp, caller);
 
@@ -3511,7 +3532,7 @@ __do_kmalloc_node(size_t size, gfp_t flags, int node, unsigned long caller)
 	return ret;
 }
 
-void *__kmalloc_node(size_t size, gfp_t flags, int node)
+void * __size_overflow(1) __kmalloc_node(size_t size, gfp_t flags, int node)
 {
 	return __do_kmalloc_node(size, flags, node, _RET_IP_);
 }
@@ -3531,7 +3552,7 @@ EXPORT_SYMBOL(__kmalloc_node_track_caller);
  * @flags: the type of memory to allocate (see kmalloc).
  * @caller: function caller for debug tracking of the caller
  */
-static __always_inline void *__do_kmalloc(size_t size, gfp_t flags,
+static __always_inline void * __size_overflow(1) __do_kmalloc(size_t size, gfp_t flags,
 					  unsigned long caller)
 {
 	struct kmem_cache *cachep;
@@ -3631,6 +3652,7 @@ void kfree(const void *objp)
 
 	if (unlikely(ZERO_OR_NULL_PTR(objp)))
 		return;
+	VM_BUG_ON(!virt_addr_valid(objp));
 	local_irq_save(flags);
 	kfree_debugcheck(objp);
 	c = virt_to_cache(objp);
@@ -4049,14 +4071,22 @@ void slabinfo_show_stats(struct seq_file *m, struct kmem_cache *cachep)
 	}
 	/* cpu stats */
 	{
-		unsigned long allochit = atomic_read(&cachep->allochit);
-		unsigned long allocmiss = atomic_read(&cachep->allocmiss);
-		unsigned long freehit = atomic_read(&cachep->freehit);
-		unsigned long freemiss = atomic_read(&cachep->freemiss);
+		unsigned long allochit = atomic_read_unchecked(&cachep->allochit);
+		unsigned long allocmiss = atomic_read_unchecked(&cachep->allocmiss);
+		unsigned long freehit = atomic_read_unchecked(&cachep->freehit);
+		unsigned long freemiss = atomic_read_unchecked(&cachep->freemiss);
 
 		seq_printf(m, " : cpustat %6lu %6lu %6lu %6lu",
 			   allochit, allocmiss, freehit, freemiss);
 	}
+#ifdef CONFIG_PAX_MEMORY_SANITIZE
+	{
+		unsigned long sanitized = atomic_read_unchecked(&cachep->sanitized);
+		unsigned long not_sanitized = atomic_read_unchecked(&cachep->not_sanitized);
+
+		seq_printf(m, " : pax %6lu %6lu", sanitized, not_sanitized);
+	}
+#endif
 #endif
 }
 
@@ -4293,13 +4323,80 @@ static const struct file_operations proc_slabstats_operations = {
 static int __init slab_proc_init(void)
 {
 #ifdef CONFIG_DEBUG_SLAB_LEAK
-	proc_create("slab_allocators", 0, NULL, &proc_slabstats_operations);
+	proc_create("slab_allocators", S_IRUSR, NULL, &proc_slabstats_operations);
 #endif
 	return 0;
 }
 module_init(slab_proc_init);
 #endif
 
+bool is_usercopy_object(const void *ptr)
+{
+	struct page *page;
+	struct kmem_cache *cachep;
+
+	if (ZERO_OR_NULL_PTR(ptr))
+		return false;
+
+	if (!slab_is_available())
+		return false;
+
+	if (is_vmalloc_addr(ptr)
+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
+	    && !object_starts_on_stack(ptr)
+#endif
+	) {
+		struct vm_struct *vm = find_vm_area(ptr);
+		if (vm && (vm->flags & VM_USERCOPY))
+			return true;
+		return false;
+	}
+
+	if (!virt_addr_valid(ptr))
+		return false;
+
+	page = virt_to_head_page(ptr);
+
+	if (!PageSlab(page))
+		return false;
+
+	cachep = page->slab_cache;
+	return cachep->flags & SLAB_USERCOPY;
+}
+
+#ifdef CONFIG_PAX_USERCOPY
+const char *check_heap_object(const void *ptr, unsigned long n)
+{
+	struct page *page;
+	struct kmem_cache *cachep;
+	unsigned int objnr;
+	unsigned long offset;
+
+	if (ZERO_OR_NULL_PTR(ptr))
+		return "<null>";
+
+	if (!virt_addr_valid(ptr))
+		return NULL;
+
+	page = virt_to_head_page(ptr);
+
+	if (!PageSlab(page))
+		return NULL;
+
+	cachep = page->slab_cache;
+	if (!(cachep->flags & SLAB_USERCOPY))
+		return cachep->name;
+
+	objnr = obj_to_index(cachep, page, ptr);
+	BUG_ON(objnr >= cachep->num);
+	offset = ptr - index_to_obj(cachep, page, objnr) - obj_offset(cachep);
+	if (offset <= cachep->object_size && n <= cachep->object_size - offset)
+		return NULL;
+
+	return cachep->name;
+}
+#endif
+
 /**
  * ksize - get the actual amount of memory allocated for a given object
  * @objp: Pointer to the object
diff --git a/mm/slab.h b/mm/slab.h
index 5969769..6bd0b85 100644
--- a/mm/slab.h
+++ b/mm/slab.h
@@ -22,7 +22,7 @@ struct kmem_cache {
 	unsigned int align;	/* Alignment as calculated */
 	unsigned long flags;	/* Active flags on the slab */
 	const char *name;	/* Slab name for sysfs */
-	int refcount;		/* Use counter */
+	atomic_t refcount;	/* Use counter */
 	void (*ctor)(void *);	/* Called on object slot creation */
 	struct list_head list;	/* List of all slab caches on the system */
 };
@@ -70,6 +70,35 @@ extern struct list_head slab_caches;
 /* The slab cache that manages slab cache information */
 extern struct kmem_cache *kmem_cache;
 
+#ifdef CONFIG_PAX_MEMORY_SANITIZE
+#ifdef CONFIG_X86_64
+#define PAX_MEMORY_SANITIZE_VALUE	'\xfe'
+#else
+#define PAX_MEMORY_SANITIZE_VALUE	'\xff'
+#endif
+enum pax_sanitize_mode {
+	PAX_SANITIZE_SLAB_OFF = 0,
+	PAX_SANITIZE_SLAB_FAST,
+	PAX_SANITIZE_SLAB_FULL,
+};
+
+extern enum pax_sanitize_mode pax_sanitize_slab;
+
+static inline unsigned long pax_sanitize_slab_flags(unsigned long flags)
+{
+	if (pax_sanitize_slab == PAX_SANITIZE_SLAB_OFF || (flags & SLAB_DESTROY_BY_RCU))
+		flags |= SLAB_NO_SANITIZE;
+	else if (pax_sanitize_slab == PAX_SANITIZE_SLAB_FULL)
+		flags &= ~SLAB_NO_SANITIZE;
+	return flags;
+}
+#else
+static inline unsigned long pax_sanitize_slab_flags(unsigned long flags)
+{
+	return flags;
+}
+#endif
+
 unsigned long calculate_alignment(unsigned long flags,
 		unsigned long align, unsigned long size);
 
@@ -119,7 +148,8 @@ static inline unsigned long kmem_cache_flags(unsigned long object_size,
 
 /* Legal flag mask for kmem_cache_create(), for various configurations */
 #define SLAB_CORE_FLAGS (SLAB_HWCACHE_ALIGN | SLAB_CACHE_DMA | SLAB_PANIC | \
-			 SLAB_DESTROY_BY_RCU | SLAB_DEBUG_OBJECTS )
+			 SLAB_DESTROY_BY_RCU | SLAB_DEBUG_OBJECTS | \
+			 SLAB_USERCOPY | SLAB_NO_SANITIZE)
 
 #if defined(CONFIG_DEBUG_SLAB)
 #define SLAB_DEBUG_FLAGS (SLAB_RED_ZONE | SLAB_POISON | SLAB_STORE_USER)
@@ -342,6 +372,9 @@ static inline struct kmem_cache *cache_from_obj(struct kmem_cache *s, void *x)
 		return s;
 
 	page = virt_to_head_page(x);
+
+	BUG_ON(!PageSlab(page));
+
 	cachep = page->slab_cache;
 	if (slab_equal_or_root(cachep, s))
 		return cachep;
diff --git a/mm/slab_common.c b/mm/slab_common.c
index 3239bfd..1ec24ac 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -25,11 +25,35 @@
 
 #include "slab.h"
 
-enum slab_state slab_state;
+enum slab_state slab_state __read_only;
 LIST_HEAD(slab_caches);
 DEFINE_MUTEX(slab_mutex);
 struct kmem_cache *kmem_cache;
 
+#ifdef CONFIG_PAX_MEMORY_SANITIZE
+enum pax_sanitize_mode pax_sanitize_slab __read_only = PAX_SANITIZE_SLAB_FAST;
+static int __init pax_sanitize_slab_setup(char *str)
+{
+	if (!str)
+		return 0;
+
+	if (!strcmp(str, "0") || !strcmp(str, "off")) {
+		pr_info("PaX slab sanitization: %s\n", "disabled");
+		pax_sanitize_slab = PAX_SANITIZE_SLAB_OFF;
+	} else if (!strcmp(str, "1") || !strcmp(str, "fast")) {
+		pr_info("PaX slab sanitization: %s\n", "fast");
+		pax_sanitize_slab = PAX_SANITIZE_SLAB_FAST;
+	} else if (!strcmp(str, "full")) {
+		pr_info("PaX slab sanitization: %s\n", "full");
+		pax_sanitize_slab = PAX_SANITIZE_SLAB_FULL;
+	} else
+		pr_err("PaX slab sanitization: unsupported option '%s'\n", str);
+
+	return 0;
+}
+early_param("pax_sanitize_slab", pax_sanitize_slab_setup);
+#endif
+
 /*
  * Set of flags that will prevent slab merging
  */
@@ -44,7 +68,7 @@ struct kmem_cache *kmem_cache;
  * Merge control. If this is set then no merging of slab caches will occur.
  * (Could be removed. This was introduced to pacify the merge skeptics.)
  */
-static int slab_nomerge;
+static int slab_nomerge = 1;
 
 static int __init setup_slab_nomerge(char *str)
 {
@@ -244,7 +268,7 @@ int slab_unmergeable(struct kmem_cache *s)
 	/*
 	 * We may have set a slab to be unmergeable during bootstrap.
 	 */
-	if (s->refcount < 0)
+	if (atomic_read(&s->refcount) < 0)
 		return 1;
 
 	return 0;
@@ -348,7 +372,7 @@ static struct kmem_cache *create_cache(const char *name,
 	if (err)
 		goto out_free_cache;
 
-	s->refcount = 1;
+	atomic_set(&s->refcount, 1);
 	list_add(&s->list, &slab_caches);
 out:
 	if (err)
@@ -473,7 +497,7 @@ static void release_caches(struct list_head *release, bool need_rcu_barrier)
 		rcu_barrier();
 
 	list_for_each_entry_safe(s, s2, release, list) {
-#ifdef SLAB_SUPPORTS_SYSFS
+#if defined(SLAB_SUPPORTS_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
 		sysfs_slab_remove(s);
 #else
 		slab_kmem_cache_release(s);
@@ -717,8 +741,7 @@ void kmem_cache_destroy(struct kmem_cache *s)
 
 	mutex_lock(&slab_mutex);
 
-	s->refcount--;
-	if (s->refcount)
+	if (!atomic_dec_and_test(&s->refcount))
 		goto out_unlock;
 
 	err = shutdown_memcg_caches(s, &release, &need_rcu_barrier);
@@ -784,7 +807,7 @@ void __init create_boot_cache(struct kmem_cache *s, const char *name, size_t siz
 		panic("Creation of kmalloc slab %s size=%zu failed. Reason %d\n",
 					name, size, err);
 
-	s->refcount = -1;	/* Exempt from merging for now */
+	atomic_set(&s->refcount, -1);	/* Exempt from merging for now */
 }
 
 struct kmem_cache *__init create_kmalloc_cache(const char *name, size_t size,
@@ -797,7 +820,7 @@ struct kmem_cache *__init create_kmalloc_cache(const char *name, size_t size,
 
 	create_boot_cache(s, name, size, flags);
 	list_add(&s->list, &slab_caches);
-	s->refcount = 1;
+	atomic_set(&s->refcount, 1);
 	return s;
 }
 
@@ -809,6 +832,11 @@ struct kmem_cache *kmalloc_dma_caches[KMALLOC_SHIFT_HIGH + 1];
 EXPORT_SYMBOL(kmalloc_dma_caches);
 #endif
 
+#ifdef CONFIG_PAX_USERCOPY_SLABS
+struct kmem_cache *kmalloc_usercopy_caches[KMALLOC_SHIFT_HIGH + 1];
+EXPORT_SYMBOL(kmalloc_usercopy_caches);
+#endif
+
 /*
  * Conversion table for small slabs sizes / 8 to the index in the
  * kmalloc array. This is necessary for slabs < 192 since we have non power
@@ -873,6 +901,13 @@ struct kmem_cache *kmalloc_slab(size_t size, gfp_t flags)
 		return kmalloc_dma_caches[index];
 
 #endif
+
+#ifdef CONFIG_PAX_USERCOPY_SLABS
+	if (unlikely((flags & GFP_USERCOPY)))
+		return kmalloc_usercopy_caches[index];
+
+#endif
+
 	return kmalloc_caches[index];
 }
 
@@ -965,7 +1000,7 @@ void __init create_kmalloc_caches(unsigned long flags)
 
 	for (i = KMALLOC_SHIFT_LOW; i <= KMALLOC_SHIFT_HIGH; i++) {
 		if (!kmalloc_caches[i])
-			new_kmalloc_cache(i, flags);
+			new_kmalloc_cache(i, SLAB_USERCOPY | flags);
 
 		/*
 		 * Caches that are not of the two-to-the-power-of size.
@@ -973,9 +1008,9 @@ void __init create_kmalloc_caches(unsigned long flags)
 		 * earlier power of two caches
 		 */
 		if (KMALLOC_MIN_SIZE <= 32 && !kmalloc_caches[1] && i == 6)
-			new_kmalloc_cache(1, flags);
+			new_kmalloc_cache(1, SLAB_USERCOPY | flags);
 		if (KMALLOC_MIN_SIZE <= 64 && !kmalloc_caches[2] && i == 7)
-			new_kmalloc_cache(2, flags);
+			new_kmalloc_cache(2, SLAB_USERCOPY | flags);
 	}
 
 	/* Kmalloc array is now usable */
@@ -996,6 +1031,23 @@ void __init create_kmalloc_caches(unsigned long flags)
 		}
 	}
 #endif
+
+#ifdef CONFIG_PAX_USERCOPY_SLABS
+	for (i = 0; i <= KMALLOC_SHIFT_HIGH; i++) {
+		struct kmem_cache *s = kmalloc_caches[i];
+
+		if (s) {
+			int size = kmalloc_size(i);
+			char *n = kasprintf(GFP_NOWAIT,
+				 "usercopy-kmalloc-%d", size);
+
+			BUG_ON(!n);
+			kmalloc_usercopy_caches[i] = create_kmalloc_cache(n,
+				size, SLAB_USERCOPY | flags);
+		}
+	}
+#endif
+
 }
 #endif /* !CONFIG_SLOB */
 
@@ -1053,6 +1105,9 @@ static void print_slabinfo_header(struct seq_file *m)
 #ifdef CONFIG_DEBUG_SLAB
 	seq_puts(m, " : globalstat <listallocs> <maxobjs> <grown> <reaped> <error> <maxfreeable> <nodeallocs> <remotefrees> <alienoverflow>");
 	seq_puts(m, " : cpustat <allochit> <allocmiss> <freehit> <freemiss>");
+#ifdef CONFIG_PAX_MEMORY_SANITIZE
+	seq_puts(m, " : pax <sanitized> <not_sanitized>");
+#endif
 #endif
 	seq_putc(m, '\n');
 }
@@ -1182,7 +1237,7 @@ static int __init slab_proc_init(void)
 module_init(slab_proc_init);
 #endif /* CONFIG_SLABINFO */
 
-static __always_inline void *__do_krealloc(const void *p, size_t new_size,
+static __always_inline void * __size_overflow(2) __do_krealloc(const void *p, size_t new_size,
 					   gfp_t flags)
 {
 	void *ret;
diff --git a/mm/slob.c b/mm/slob.c
index 5ec1580..93f3beb 100644
--- a/mm/slob.c
+++ b/mm/slob.c
@@ -67,6 +67,7 @@
 #include <linux/rcupdate.h>
 #include <linux/list.h>
 #include <linux/kmemleak.h>
+#include <linux/vmalloc.h>
 
 #include <trace/events/kmem.h>
 
@@ -157,7 +158,7 @@ static void set_slob(slob_t *s, slobidx_t size, slob_t *next)
 /*
  * Return the size of a slob block.
  */
-static slobidx_t slob_units(slob_t *s)
+static slobidx_t slob_units(const slob_t *s)
 {
 	if (s->units > 0)
 		return s->units;
@@ -167,7 +168,7 @@ static slobidx_t slob_units(slob_t *s)
 /*
  * Return the next free slob block pointer after this one.
  */
-static slob_t *slob_next(slob_t *s)
+static slob_t *slob_next(const slob_t *s)
 {
 	slob_t *base = (slob_t *)((unsigned long)s & PAGE_MASK);
 	slobidx_t next;
@@ -182,14 +183,14 @@ static slob_t *slob_next(slob_t *s)
 /*
  * Returns true if s is the last free block in its page.
  */
-static int slob_last(slob_t *s)
+static int slob_last(const slob_t *s)
 {
 	return !((unsigned long)slob_next(s) & ~PAGE_MASK);
 }
 
-static void *slob_new_pages(gfp_t gfp, int order, int node)
+static struct page *slob_new_pages(gfp_t gfp, unsigned int order, int node)
 {
-	void *page;
+	struct page *page;
 
 #ifdef CONFIG_NUMA
 	if (node != NUMA_NO_NODE)
@@ -201,14 +202,18 @@ static void *slob_new_pages(gfp_t gfp, int order, int node)
 	if (!page)
 		return NULL;
 
-	return page_address(page);
+	__SetPageSlab(page);
+	return page;
 }
 
-static void slob_free_pages(void *b, int order)
+static void slob_free_pages(struct page *sp, int order)
 {
 	if (current->reclaim_state)
 		current->reclaim_state->reclaimed_slab += 1 << order;
-	free_pages((unsigned long)b, order);
+	__ClearPageSlab(sp);
+	page_mapcount_reset(sp);
+	sp->private = 0;
+	__free_pages(sp, order);
 }
 
 /*
@@ -313,15 +318,15 @@ static void *slob_alloc(size_t size, gfp_t gfp, int align, int node)
 
 	/* Not enough space: must allocate a new page */
 	if (!b) {
-		b = slob_new_pages(gfp & ~__GFP_ZERO, 0, node);
-		if (!b)
+		sp = slob_new_pages(gfp & ~__GFP_ZERO, 0, node);
+		if (!sp)
 			return NULL;
-		sp = virt_to_page(b);
-		__SetPageSlab(sp);
+		b = page_address(sp);
 
 		spin_lock_irqsave(&slob_lock, flags);
 		sp->units = SLOB_UNITS(PAGE_SIZE);
 		sp->freelist = b;
+		sp->private = 0;
 		INIT_LIST_HEAD(&sp->lru);
 		set_slob(b, SLOB_UNITS(PAGE_SIZE), b + SLOB_UNITS(PAGE_SIZE));
 		set_slob_page_free(sp, slob_list);
@@ -337,7 +342,7 @@ static void *slob_alloc(size_t size, gfp_t gfp, int align, int node)
 /*
  * slob_free: entry point into the slob allocator.
  */
-static void slob_free(void *block, int size)
+static void slob_free(struct kmem_cache *c, void *block, int size)
 {
 	struct page *sp;
 	slob_t *prev, *next, *b = (slob_t *)block;
@@ -359,12 +364,15 @@ static void slob_free(void *block, int size)
 		if (slob_page_free(sp))
 			clear_slob_page_free(sp);
 		spin_unlock_irqrestore(&slob_lock, flags);
-		__ClearPageSlab(sp);
-		page_mapcount_reset(sp);
-		slob_free_pages(b, 0);
+		slob_free_pages(sp, 0);
 		return;
 	}
 
+#ifdef CONFIG_PAX_MEMORY_SANITIZE
+	if (pax_sanitize_slab && !(c && (c->flags & SLAB_NO_SANITIZE)))
+		memset(block, PAX_MEMORY_SANITIZE_VALUE, size);
+#endif
+
 	if (!slob_page_free(sp)) {
 		/* This slob page is about to become partially free. Easy! */
 		sp->units = units;
@@ -424,11 +432,10 @@ out:
  */
 
 static __always_inline void *
-__do_kmalloc_node(size_t size, gfp_t gfp, int node, unsigned long caller)
+__do_kmalloc_node_align(size_t size, gfp_t gfp, int node, unsigned long caller, int align)
 {
-	unsigned int *m;
-	int align = max_t(size_t, ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
-	void *ret;
+	slob_t *m;
+	void *ret = NULL;
 
 	gfp &= gfp_allowed_mask;
 
@@ -442,27 +449,45 @@ __do_kmalloc_node(size_t size, gfp_t gfp, int node, unsigned long caller)
 
 		if (!m)
 			return NULL;
-		*m = size;
+		BUILD_BUG_ON(ARCH_KMALLOC_MINALIGN < 2 * SLOB_UNIT);
+		BUILD_BUG_ON(ARCH_SLAB_MINALIGN < 2 * SLOB_UNIT);
+		m[0].units = size;
+		m[1].units = align;
 		ret = (void *)m + align;
 
 		trace_kmalloc_node(caller, ret,
 				   size, size + align, gfp, node);
 	} else {
 		unsigned int order = get_order(size);
+		struct page *page;
 
 		if (likely(order))
 			gfp |= __GFP_COMP;
-		ret = slob_new_pages(gfp, order, node);
+		page = slob_new_pages(gfp, order, node);
+		if (page) {
+			ret = page_address(page);
+			page->private = size;
+		}
 
 		trace_kmalloc_node(caller, ret,
 				   size, PAGE_SIZE << order, gfp, node);
 	}
 
-	kmemleak_alloc(ret, size, 1, gfp);
 	return ret;
 }
 
-void *__kmalloc(size_t size, gfp_t gfp)
+static __always_inline void *
+__do_kmalloc_node(size_t size, gfp_t gfp, int node, unsigned long caller)
+{
+	int align = max(ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
+	void *ret = __do_kmalloc_node_align(size, gfp, node, caller, align);
+
+	if (!ZERO_OR_NULL_PTR(ret))
+		kmemleak_alloc(ret, size, 1, gfp);
+	return ret;
+}
+
+void * __size_overflow(1) __kmalloc(size_t size, gfp_t gfp)
 {
 	return __do_kmalloc_node(size, gfp, NUMA_NO_NODE, _RET_IP_);
 }
@@ -491,39 +516,130 @@ void kfree(const void *block)
 		return;
 	kmemleak_free(block);
 
+	VM_BUG_ON(!virt_addr_valid(block));
 	sp = virt_to_page(block);
-	if (PageSlab(sp)) {
+	VM_BUG_ON(!PageSlab(sp));
+	if (!sp->private) {
 		int align = max_t(size_t, ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
-		unsigned int *m = (unsigned int *)(block - align);
-		slob_free(m, *m + align);
-	} else
+		slob_t *m = (slob_t *)(block - align);
+		slob_free(NULL, m, m[0].units + align);
+	} else {
+		__ClearPageSlab(sp);
+		page_mapcount_reset(sp);
+		sp->private = 0;
 		__free_pages(sp, compound_order(sp));
+	}
 }
 EXPORT_SYMBOL(kfree);
 
+bool is_usercopy_object(const void *ptr)
+{
+	if (!slab_is_available())
+		return false;
+
+	if (is_vmalloc_addr(ptr)
+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
+	    && !object_starts_on_stack(ptr)
+#endif
+	) {
+		struct vm_struct *vm = find_vm_area(ptr);
+		if (vm && (vm->flags & VM_USERCOPY))
+			return true;
+		return false;
+	}
+
+	// PAX: TODO
+
+	return false;
+}
+
+#ifdef CONFIG_PAX_USERCOPY
+const char *check_heap_object(const void *ptr, unsigned long n)
+{
+	struct page *page;
+	const slob_t *free;
+	const void *base;
+	unsigned long flags;
+
+	if (ZERO_OR_NULL_PTR(ptr))
+		return "<null>";
+
+	if (!virt_addr_valid(ptr))
+		return NULL;
+
+	page = virt_to_head_page(ptr);
+	if (!PageSlab(page))
+		return NULL;
+
+	if (page->private) {
+		base = page;
+		if (base <= ptr && n <= page->private - (ptr - base))
+			return NULL;
+		return "<slob>";
+	}
+
+	/* some tricky double walking to find the chunk */
+	spin_lock_irqsave(&slob_lock, flags);
+	base = (void *)((unsigned long)ptr & PAGE_MASK);
+	free = page->freelist;
+
+	while (!slob_last(free) && (void *)free <= ptr) {
+		base = free + slob_units(free);
+		free = slob_next(free);
+	}
+
+	while (base < (void *)free) {
+		slobidx_t m = ((slob_t *)base)[0].units, align = ((slob_t *)base)[1].units;
+		int size = SLOB_UNIT * SLOB_UNITS(m + align);
+		int offset;
+
+		if (ptr < base + align)
+			break;
+
+		offset = ptr - base - align;
+		if (offset >= m) {
+			base += size;
+			continue;
+		}
+
+		if (n > m - offset)
+			break;
+
+		spin_unlock_irqrestore(&slob_lock, flags);
+		return NULL;
+	}
+
+	spin_unlock_irqrestore(&slob_lock, flags);
+	return "<slob>";
+}
+#endif
+
 /* can't use ksize for kmem_cache_alloc memory, only kmalloc */
 size_t ksize(const void *block)
 {
 	struct page *sp;
 	int align;
-	unsigned int *m;
+	slob_t *m;
 
 	BUG_ON(!block);
 	if (unlikely(block == ZERO_SIZE_PTR))
 		return 0;
 
 	sp = virt_to_page(block);
-	if (unlikely(!PageSlab(sp)))
-		return PAGE_SIZE << compound_order(sp);
+	VM_BUG_ON(!PageSlab(sp));
+	if (sp->private)
+		return sp->private;
 
 	align = max_t(size_t, ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
-	m = (unsigned int *)(block - align);
-	return SLOB_UNITS(*m) * SLOB_UNIT;
+	m = (slob_t *)(block - align);
+	return SLOB_UNITS(m[0].units) * SLOB_UNIT;
 }
 EXPORT_SYMBOL(ksize);
 
 int __kmem_cache_create(struct kmem_cache *c, unsigned long flags)
 {
+	flags = pax_sanitize_slab_flags(flags);
+
 	if (flags & SLAB_DESTROY_BY_RCU) {
 		/* leave room for rcu footer at the end of object */
 		c->size += sizeof(struct slob_rcu);
@@ -534,23 +650,33 @@ int __kmem_cache_create(struct kmem_cache *c, unsigned long flags)
 
 static void *slob_alloc_node(struct kmem_cache *c, gfp_t flags, int node)
 {
-	void *b;
+	void *b = NULL;
 
 	flags &= gfp_allowed_mask;
 
 	lockdep_trace_alloc(flags);
 
+#ifdef CONFIG_PAX_USERCOPY_SLABS
+	b = __do_kmalloc_node_align(c->size, flags, node, _RET_IP_, c->align);
+#else
 	if (c->size < PAGE_SIZE) {
 		b = slob_alloc(c->size, flags, c->align, node);
 		trace_kmem_cache_alloc_node(_RET_IP_, b, c->object_size,
 					    SLOB_UNITS(c->size) * SLOB_UNIT,
 					    flags, node);
 	} else {
-		b = slob_new_pages(flags, get_order(c->size), node);
+		struct page *sp;
+
+		sp = slob_new_pages(flags, get_order(c->size), node);
+		if (sp) {
+			b = page_address(sp);
+			sp->private = c->size;
+		}
 		trace_kmem_cache_alloc_node(_RET_IP_, b, c->object_size,
 					    PAGE_SIZE << get_order(c->size),
 					    flags, node);
 	}
+#endif
 
 	if (b && c->ctor)
 		c->ctor(b);
@@ -566,7 +692,7 @@ void *kmem_cache_alloc(struct kmem_cache *cachep, gfp_t flags)
 EXPORT_SYMBOL(kmem_cache_alloc);
 
 #ifdef CONFIG_NUMA
-void *__kmalloc_node(size_t size, gfp_t gfp, int node)
+void * __size_overflow(1) __kmalloc_node(size_t size, gfp_t gfp, int node)
 {
 	return __do_kmalloc_node(size, gfp, node, _RET_IP_);
 }
@@ -579,12 +705,16 @@ void *kmem_cache_alloc_node(struct kmem_cache *cachep, gfp_t gfp, int node)
 EXPORT_SYMBOL(kmem_cache_alloc_node);
 #endif
 
-static void __kmem_cache_free(void *b, int size)
+static void __kmem_cache_free(struct kmem_cache *c, void *b, int size)
 {
-	if (size < PAGE_SIZE)
-		slob_free(b, size);
+	struct page *sp;
+
+	sp = virt_to_page(b);
+	BUG_ON(!PageSlab(sp));
+	if (!sp->private)
+		slob_free(c, b, size);
 	else
-		slob_free_pages(b, get_order(size));
+		slob_free_pages(sp, get_order(size));
 }
 
 static void kmem_rcu_free(struct rcu_head *head)
@@ -592,22 +722,36 @@ static void kmem_rcu_free(struct rcu_head *head)
 	struct slob_rcu *slob_rcu = (struct slob_rcu *)head;
 	void *b = (void *)slob_rcu - (slob_rcu->size - sizeof(struct slob_rcu));
 
-	__kmem_cache_free(b, slob_rcu->size);
+	__kmem_cache_free(NULL, b, slob_rcu->size);
 }
 
 void kmem_cache_free(struct kmem_cache *c, void *b)
 {
+	int size = c->size;
+
+#ifdef CONFIG_PAX_USERCOPY_SLABS
+	if (size + c->align < PAGE_SIZE) {
+		size += c->align;
+		b -= c->align;
+	}
+#endif
+
 	kmemleak_free_recursive(b, c->flags);
 	if (unlikely(c->flags & SLAB_DESTROY_BY_RCU)) {
 		struct slob_rcu *slob_rcu;
-		slob_rcu = b + (c->size - sizeof(struct slob_rcu));
-		slob_rcu->size = c->size;
+		slob_rcu = b + (size - sizeof(struct slob_rcu));
+		slob_rcu->size = size;
 		call_rcu(&slob_rcu->head, kmem_rcu_free);
 	} else {
-		__kmem_cache_free(b, c->size);
+		__kmem_cache_free(c, b, size);
 	}
 
+#ifdef CONFIG_PAX_USERCOPY_SLABS
+	trace_kfree(_RET_IP_, b);
+#else
 	trace_kmem_cache_free(_RET_IP_, b);
+#endif
+
 }
 EXPORT_SYMBOL(kmem_cache_free);
 
diff --git a/mm/slub.c b/mm/slub.c
index 4dbb109e..23490e5 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -34,6 +34,7 @@
 #include <linux/stacktrace.h>
 #include <linux/prefetch.h>
 #include <linux/memcontrol.h>
+#include <linux/vmalloc.h>
 
 #include <trace/events/kmem.h>
 
@@ -214,7 +215,7 @@ struct track {
 
 enum track_item { TRACK_ALLOC, TRACK_FREE };
 
-#ifdef CONFIG_SYSFS
+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
 static int sysfs_slab_add(struct kmem_cache *);
 static int sysfs_slab_alias(struct kmem_cache *, const char *);
 static void memcg_propagate_slab_attrs(struct kmem_cache *s);
@@ -571,7 +572,7 @@ static void print_track(const char *s, struct track *t)
 	if (!t->addr)
 		return;
 
-	pr_err("INFO: %s in %pS age=%lu cpu=%u pid=%d\n",
+	pr_err("INFO: %s in %pA age=%lu cpu=%u pid=%d\n",
 	       s, (void *)t->addr, jiffies - t->when, t->cpu, t->pid);
 #ifdef CONFIG_STACKTRACE
 	{
@@ -2778,6 +2779,22 @@ static __always_inline void slab_free(struct kmem_cache *s, struct page *page,
 
 	slab_free_freelist_hook(s, head, tail);
 
+#ifdef CONFIG_PAX_MEMORY_SANITIZE
+	if (!(s->flags & SLAB_NO_SANITIZE)) {
+		int offset = s->offset ? 0 : sizeof(void *);
+		void *x = head;
+
+		while (1) {
+			memset(x + offset, PAX_MEMORY_SANITIZE_VALUE, s->object_size - offset);
+			if (s->ctor)
+				s->ctor(x);
+			if (x == tail_obj)
+				break;
+			x = get_freepointer(s, x);
+		}
+	}
+#endif
+
 redo:
 	/*
 	 * Determine the currently cpus per cpu slab.
@@ -3545,7 +3562,7 @@ static int __init setup_slub_min_objects(char *str)
 
 __setup("slub_min_objects=", setup_slub_min_objects);
 
-void *__kmalloc(size_t size, gfp_t flags)
+void * __size_overflow(1) __kmalloc(size_t size, gfp_t flags)
 {
 	struct kmem_cache *s;
 	void *ret;
@@ -3583,7 +3600,7 @@ static void *kmalloc_large_node(size_t size, gfp_t flags, int node)
 	return ptr;
 }
 
-void *__kmalloc_node(size_t size, gfp_t flags, int node)
+void * __size_overflow(1) __kmalloc_node(size_t size, gfp_t flags, int node)
 {
 	struct kmem_cache *s;
 	void *ret;
@@ -3631,6 +3648,70 @@ static size_t __ksize(const void *object)
 	return slab_ksize(page->slab_cache);
 }
 
+bool is_usercopy_object(const void *ptr)
+{
+	struct page *page;
+	struct kmem_cache *s;
+
+	if (ZERO_OR_NULL_PTR(ptr))
+		return false;
+
+	if (!slab_is_available())
+		return false;
+
+	if (is_vmalloc_addr(ptr)
+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
+	    && !object_starts_on_stack(ptr)
+#endif
+	) {
+		struct vm_struct *vm = find_vm_area(ptr);
+		if (vm && (vm->flags & VM_USERCOPY))
+			return true;
+		return false;
+	}
+
+	if (!virt_addr_valid(ptr))
+		return false;
+
+	page = virt_to_head_page(ptr);
+
+	if (!PageSlab(page))
+		return false;
+
+	s = page->slab_cache;
+	return s->flags & SLAB_USERCOPY;
+}
+
+#ifdef CONFIG_PAX_USERCOPY
+const char *check_heap_object(const void *ptr, unsigned long n)
+{
+	struct page *page;
+	struct kmem_cache *s;
+	unsigned long offset;
+
+	if (ZERO_OR_NULL_PTR(ptr))
+		return "<null>";
+
+	if (!virt_addr_valid(ptr))
+		return NULL;
+
+	page = virt_to_head_page(ptr);
+
+	if (!PageSlab(page))
+		return NULL;
+
+	s = page->slab_cache;
+	if (!(s->flags & SLAB_USERCOPY))
+		return s->name;
+
+	offset = (ptr - page_address(page)) % s->size;
+	if (offset <= s->object_size && n <= s->object_size - offset)
+		return NULL;
+
+	return s->name;
+}
+#endif
+
 size_t ksize(const void *object)
 {
 	size_t size = __ksize(object);
@@ -3651,6 +3732,7 @@ void kfree(const void *x)
 	if (unlikely(ZERO_OR_NULL_PTR(x)))
 		return;
 
+	VM_BUG_ON(!virt_addr_valid(x));
 	page = virt_to_head_page(x);
 	if (unlikely(!PageSlab(page))) {
 		BUG_ON(!PageCompound(page));
@@ -3968,7 +4050,7 @@ __kmem_cache_alias(const char *name, size_t size, size_t align,
 
 	s = find_mergeable(size, align, flags, name, ctor);
 	if (s) {
-		s->refcount++;
+		atomic_inc(&s->refcount);
 
 		/*
 		 * Adjust the object sizes so that we clear
@@ -3984,7 +4066,7 @@ __kmem_cache_alias(const char *name, size_t size, size_t align,
 		}
 
 		if (sysfs_slab_alias(s, name)) {
-			s->refcount--;
+			atomic_dec(&s->refcount);
 			s = NULL;
 		}
 	}
@@ -3996,6 +4078,8 @@ int __kmem_cache_create(struct kmem_cache *s, unsigned long flags)
 {
 	int err;
 
+	flags = pax_sanitize_slab_flags(flags);
+
 	err = kmem_cache_open(s, flags);
 	if (err)
 		return err;
@@ -4101,7 +4185,7 @@ void *__kmalloc_node_track_caller(size_t size, gfp_t gfpflags,
 }
 #endif
 
-#ifdef CONFIG_SYSFS
+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
 static int count_inuse(struct page *page)
 {
 	return page->inuse;
@@ -4382,7 +4466,11 @@ static int list_locations(struct kmem_cache *s, char *buf,
 		len += sprintf(buf + len, "%7ld ", l->count);
 
 		if (l->addr)
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+			len += sprintf(buf + len, "%pS", NULL);
+#else
 			len += sprintf(buf + len, "%pS", (void *)l->addr);
+#endif
 		else
 			len += sprintf(buf + len, "<not-available>");
 
@@ -4480,12 +4568,12 @@ static void __init resiliency_test(void)
 	validate_slab_cache(kmalloc_caches[9]);
 }
 #else
-#ifdef CONFIG_SYSFS
+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
 static void resiliency_test(void) {};
 #endif
 #endif
 
-#ifdef CONFIG_SYSFS
+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
 enum slab_stat_type {
 	SL_ALL,			/* All slabs */
 	SL_PARTIAL,		/* Only partially allocated slabs */
@@ -4722,13 +4810,17 @@ static ssize_t ctor_show(struct kmem_cache *s, char *buf)
 {
 	if (!s->ctor)
 		return 0;
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+	return sprintf(buf, "%pS\n", NULL);
+#else
 	return sprintf(buf, "%pS\n", s->ctor);
+#endif
 }
 SLAB_ATTR_RO(ctor);
 
 static ssize_t aliases_show(struct kmem_cache *s, char *buf)
 {
-	return sprintf(buf, "%d\n", s->refcount < 0 ? 0 : s->refcount - 1);
+	return sprintf(buf, "%d\n", atomic_read(&s->refcount) < 0 ? 0 : atomic_read(&s->refcount) - 1);
 }
 SLAB_ATTR_RO(aliases);
 
@@ -4816,6 +4908,22 @@ static ssize_t cache_dma_show(struct kmem_cache *s, char *buf)
 SLAB_ATTR_RO(cache_dma);
 #endif
 
+#ifdef CONFIG_PAX_USERCOPY_SLABS
+static ssize_t usercopy_show(struct kmem_cache *s, char *buf)
+{
+	return sprintf(buf, "%d\n", !!(s->flags & SLAB_USERCOPY));
+}
+SLAB_ATTR_RO(usercopy);
+#endif
+
+#ifdef CONFIG_PAX_MEMORY_SANITIZE
+static ssize_t sanitize_show(struct kmem_cache *s, char *buf)
+{
+	return sprintf(buf, "%d\n", !(s->flags & SLAB_NO_SANITIZE));
+}
+SLAB_ATTR_RO(sanitize);
+#endif
+
 static ssize_t destroy_by_rcu_show(struct kmem_cache *s, char *buf)
 {
 	return sprintf(buf, "%d\n", !!(s->flags & SLAB_DESTROY_BY_RCU));
@@ -4871,7 +4979,7 @@ static ssize_t trace_store(struct kmem_cache *s, const char *buf,
 	 * as well as cause other issues like converting a mergeable
 	 * cache into an umergeable one.
 	 */
-	if (s->refcount > 1)
+	if (atomic_read(&s->refcount) > 1)
 		return -EINVAL;
 
 	s->flags &= ~SLAB_TRACE;
@@ -4989,7 +5097,7 @@ static ssize_t failslab_show(struct kmem_cache *s, char *buf)
 static ssize_t failslab_store(struct kmem_cache *s, const char *buf,
 							size_t length)
 {
-	if (s->refcount > 1)
+	if (atomic_read(&s->refcount) > 1)
 		return -EINVAL;
 
 	s->flags &= ~SLAB_FAILSLAB;
@@ -5121,7 +5229,7 @@ STAT_ATTR(CPU_PARTIAL_NODE, cpu_partial_node);
 STAT_ATTR(CPU_PARTIAL_DRAIN, cpu_partial_drain);
 #endif
 
-static struct attribute *slab_attrs[] = {
+static struct attribute *slab_attrs[] __read_only = {
 	&slab_size_attr.attr,
 	&object_size_attr.attr,
 	&objs_per_slab_attr.attr,
@@ -5156,6 +5264,12 @@ static struct attribute *slab_attrs[] = {
 #ifdef CONFIG_ZONE_DMA
 	&cache_dma_attr.attr,
 #endif
+#ifdef CONFIG_PAX_USERCOPY_SLABS
+	&usercopy_attr.attr,
+#endif
+#ifdef CONFIG_PAX_MEMORY_SANITIZE
+	&sanitize_attr.attr,
+#endif
 #ifdef CONFIG_NUMA
 	&remote_node_defrag_ratio_attr.attr,
 #endif
@@ -5399,6 +5513,7 @@ static char *create_unique_id(struct kmem_cache *s)
 	return name;
 }
 
+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
 static int sysfs_slab_add(struct kmem_cache *s)
 {
 	int err;
@@ -5470,6 +5585,7 @@ void sysfs_slab_remove(struct kmem_cache *s)
 	kobject_del(&s->kobj);
 	kobject_put(&s->kobj);
 }
+#endif
 
 /*
  * Need to buffer aliases during bootup until sysfs becomes
@@ -5483,6 +5599,7 @@ struct saved_alias {
 
 static struct saved_alias *alias_list;
 
+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
 static int sysfs_slab_alias(struct kmem_cache *s, const char *name)
 {
 	struct saved_alias *al;
@@ -5505,6 +5622,7 @@ static int sysfs_slab_alias(struct kmem_cache *s, const char *name)
 	alias_list = al;
 	return 0;
 }
+#endif
 
 static int __init slab_sysfs_init(void)
 {
diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c
index 68885dc..35c5cc4 100644
--- a/mm/sparse-vmemmap.c
+++ b/mm/sparse-vmemmap.c
@@ -203,7 +203,7 @@ pud_t * __meminit vmemmap_pud_populate(pgd_t *pgd, unsigned long addr, int node)
 		void *p = vmemmap_alloc_block(PAGE_SIZE, node);
 		if (!p)
 			return NULL;
-		pud_populate(&init_mm, pud, p);
+		pud_populate_kernel(&init_mm, pud, p);
 	}
 	return pud;
 }
@@ -215,7 +215,7 @@ pgd_t * __meminit vmemmap_pgd_populate(unsigned long addr, int node)
 		void *p = vmemmap_alloc_block(PAGE_SIZE, node);
 		if (!p)
 			return NULL;
-		pgd_populate(&init_mm, pgd, p);
+		pgd_populate_kernel(&init_mm, pgd, p);
 	}
 	return pgd;
 }
diff --git a/mm/sparse.c b/mm/sparse.c
index 5d0cf45..66e4df6 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -747,7 +747,7 @@ static void clear_hwpoisoned_pages(struct page *memmap, int nr_pages)
 
 	for (i = 0; i < nr_pages; i++) {
 		if (PageHWPoison(&memmap[i])) {
-			atomic_long_sub(1, &num_poisoned_pages);
+			atomic_long_sub_unchecked(1, &num_poisoned_pages);
 			ClearPageHWPoison(&memmap[i]);
 		}
 	}
diff --git a/mm/swap.c b/mm/swap.c
index 03aacbc..3a5e649 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -88,6 +88,13 @@ static void __put_compound_page(struct page *page)
 	if (!PageHuge(page))
 		__page_cache_release(page);
 	dtor = get_compound_page_dtor(page);
+	if (!PageHuge(page))
+		BUG_ON(dtor != free_compound_page
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+			&& dtor != free_transhuge_page
+#endif
+		);
+
 	(*dtor)(page);
 }
 
diff --git a/mm/swapfile.c b/mm/swapfile.c
index 031713ab..f2c0e55 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -90,7 +90,7 @@ static DEFINE_MUTEX(swapon_mutex);
 
 static DECLARE_WAIT_QUEUE_HEAD(proc_poll_wait);
 /* Activity counter to indicate that a swapon or swapoff has occurred */
-static atomic_t proc_poll_event = ATOMIC_INIT(0);
+static atomic_unchecked_t proc_poll_event = ATOMIC_INIT(0);
 
 static inline unsigned char swap_count(unsigned char ent)
 {
@@ -1979,7 +1979,7 @@ SYSCALL_DEFINE1(swapoff, const char __user *, specialfile)
 	spin_unlock(&swap_lock);
 
 	err = 0;
-	atomic_inc(&proc_poll_event);
+	atomic_inc_unchecked(&proc_poll_event);
 	wake_up_interruptible(&proc_poll_wait);
 
 out_dput:
@@ -1996,8 +1996,8 @@ static unsigned swaps_poll(struct file *file, poll_table *wait)
 
 	poll_wait(file, &proc_poll_wait, wait);
 
-	if (seq->poll_event != atomic_read(&proc_poll_event)) {
-		seq->poll_event = atomic_read(&proc_poll_event);
+	if (seq->poll_event != atomic_read_unchecked(&proc_poll_event)) {
+		seq->poll_event = atomic_read_unchecked(&proc_poll_event);
 		return POLLIN | POLLRDNORM | POLLERR | POLLPRI;
 	}
 
@@ -2095,7 +2095,7 @@ static int swaps_open(struct inode *inode, struct file *file)
 		return ret;
 
 	seq = file->private_data;
-	seq->poll_event = atomic_read(&proc_poll_event);
+	seq->poll_event = atomic_read_unchecked(&proc_poll_event);
 	return 0;
 }
 
@@ -2543,7 +2543,7 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
 		(frontswap_map) ? "FS" : "");
 
 	mutex_unlock(&swapon_mutex);
-	atomic_inc(&proc_poll_event);
+	atomic_inc_unchecked(&proc_poll_event);
 	wake_up_interruptible(&proc_poll_wait);
 
 	if (S_ISREG(inode->i_mode))
diff --git a/mm/util.c b/mm/util.c
index 6cc81e7..53a6ff9 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -239,6 +239,12 @@ int vma_is_stack_for_task(struct vm_area_struct *vma, struct task_struct *t)
 void arch_pick_mmap_layout(struct mm_struct *mm)
 {
 	mm->mmap_base = TASK_UNMAPPED_BASE;
+
+#ifdef CONFIG_PAX_RANDMMAP
+	if (mm->pax_flags & MF_PAX_RANDMMAP)
+		mm->mmap_base += mm->delta_mmap;
+#endif
+
 	mm->get_unmapped_area = arch_get_unmapped_area;
 }
 #endif
@@ -400,6 +406,7 @@ unsigned long sysctl_overcommit_kbytes __read_mostly;
 int sysctl_max_map_count __read_mostly = DEFAULT_MAX_MAP_COUNT;
 unsigned long sysctl_user_reserve_kbytes __read_mostly = 1UL << 17; /* 128MB */
 unsigned long sysctl_admin_reserve_kbytes __read_mostly = 1UL << 13; /* 8MB */
+unsigned long sysctl_heap_stack_gap __read_mostly = 64*1024;
 
 int overcommit_ratio_handler(struct ctl_table *table, int write,
 			     void __user *buffer, size_t *lenp,
@@ -579,6 +586,9 @@ int get_cmdline(struct task_struct *task, char *buffer, int buflen)
 	if (!mm->arg_end)
 		goto out_mm;	/* Shh! No looking before we're done */
 
+	if (gr_acl_handle_procpidmem(task))
+		goto out_mm;
+
 	down_read(&mm->mmap_sem);
 	arg_start = mm->arg_start;
 	arg_end = mm->arg_end;
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index ae7d20b..718df5c 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -42,20 +42,65 @@ struct vfree_deferred {
 	struct work_struct wq;
 };
 static DEFINE_PER_CPU(struct vfree_deferred, vfree_deferred);
+static DEFINE_PER_CPU(struct vfree_deferred, vunmap_deferred);
+
+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
+struct stack_deferred_llist {
+	struct llist_head list;
+	void *stack;
+	void *lowmem_stack;
+};
+
+struct stack_deferred {
+	struct stack_deferred_llist list;
+	struct work_struct wq;
+};
+
+static DEFINE_PER_CPU(struct stack_deferred, stack_deferred);
+#endif
 
 static void __vunmap(const void *, int);
 
-static void free_work(struct work_struct *w)
+static void vfree_work(struct work_struct *w)
 {
 	struct vfree_deferred *p = container_of(w, struct vfree_deferred, wq);
 	struct llist_node *llnode = llist_del_all(&p->list);
 	while (llnode) {
-		void *p = llnode;
+		void *x = llnode;
 		llnode = llist_next(llnode);
-		__vunmap(p, 1);
+		__vunmap(x, 1);
 	}
 }
 
+static void vunmap_work(struct work_struct *w)
+{
+	struct vfree_deferred *p = container_of(w, struct vfree_deferred, wq);
+	struct llist_node *llnode = llist_del_all(&p->list);
+	while (llnode) {
+		void *x = llnode;
+		llnode = llist_next(llnode);
+		__vunmap(x, 0);
+	}
+}
+
+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
+static void unmap_work(struct work_struct *w)
+{
+	struct stack_deferred *p = container_of(w, struct stack_deferred, wq);
+	struct llist_node *llnode = llist_del_all(&p->list.list);
+	while (llnode) {
+		struct stack_deferred_llist *x =
+			llist_entry((struct llist_head *)llnode,
+				     struct stack_deferred_llist, list);
+		void *stack = ACCESS_ONCE(x->stack);
+		void *lowmem_stack = ACCESS_ONCE(x->lowmem_stack);
+		llnode = llist_next(llnode);
+		__vunmap(stack, 0);
+		free_kmem_pages((unsigned long)lowmem_stack, THREAD_SIZE_ORDER);
+	}
+}
+#endif
+
 /*** Page table manipulation functions ***/
 
 static void vunmap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end)
@@ -63,10 +108,23 @@ static void vunmap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end)
 	pte_t *pte;
 
 	pte = pte_offset_kernel(pmd, addr);
+	pax_open_kernel();
 	do {
-		pte_t ptent = ptep_get_and_clear(&init_mm, addr, pte);
-		WARN_ON(!pte_none(ptent) && !pte_present(ptent));
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+		if ((unsigned long)MODULES_EXEC_VADDR <= addr && addr < (unsigned long)MODULES_EXEC_END) {
+			BUG_ON(!pte_exec(*pte));
+			set_pte_at(&init_mm, addr, pte, pfn_pte(__pa(addr) >> PAGE_SHIFT, PAGE_KERNEL_EXEC));
+			continue;
+		}
+#endif
+
+		{
+			pte_t ptent = ptep_get_and_clear(&init_mm, addr, pte);
+			WARN_ON(!pte_none(ptent) && !pte_present(ptent));
+		}
 	} while (pte++, addr += PAGE_SIZE, addr != end);
+	pax_close_kernel();
 }
 
 static void vunmap_pmd_range(pud_t *pud, unsigned long addr, unsigned long end)
@@ -129,16 +187,29 @@ static int vmap_pte_range(pmd_t *pmd, unsigned long addr,
 	pte = pte_alloc_kernel(pmd, addr);
 	if (!pte)
 		return -ENOMEM;
+
+	pax_open_kernel();
 	do {
 		struct page *page = pages[*nr];
 
-		if (WARN_ON(!pte_none(*pte)))
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+		if (pgprot_val(prot) & _PAGE_NX)
+#endif
+
+		if (!pte_none(*pte)) {
+			pax_close_kernel();
+			WARN_ON(1);
 			return -EBUSY;
-		if (WARN_ON(!page))
+		}
+		if (!page) {
+			pax_close_kernel();
+			WARN_ON(1);
 			return -ENOMEM;
+		}
 		set_pte_at(&init_mm, addr, pte, mk_pte(page, prot));
 		(*nr)++;
 	} while (pte++, addr += PAGE_SIZE, addr != end);
+	pax_close_kernel();
 	return 0;
 }
 
@@ -148,7 +219,7 @@ static int vmap_pmd_range(pud_t *pud, unsigned long addr,
 	pmd_t *pmd;
 	unsigned long next;
 
-	pmd = pmd_alloc(&init_mm, pud, addr);
+	pmd = pmd_alloc_kernel(&init_mm, pud, addr);
 	if (!pmd)
 		return -ENOMEM;
 	do {
@@ -165,7 +236,7 @@ static int vmap_pud_range(pgd_t *pgd, unsigned long addr,
 	pud_t *pud;
 	unsigned long next;
 
-	pud = pud_alloc(&init_mm, pgd, addr);
+	pud = pud_alloc_kernel(&init_mm, pgd, addr);
 	if (!pud)
 		return -ENOMEM;
 	do {
@@ -225,6 +296,12 @@ int is_vmalloc_or_module_addr(const void *x)
 	if (addr >= MODULES_VADDR && addr < MODULES_END)
 		return 1;
 #endif
+
+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
+	if (x >= (const void *)MODULES_EXEC_VADDR && x < (const void *)MODULES_EXEC_END)
+		return 1;
+#endif
+
 	return is_vmalloc_addr(x);
 }
 
@@ -245,8 +322,14 @@ struct page *vmalloc_to_page(const void *vmalloc_addr)
 
 	if (!pgd_none(*pgd)) {
 		pud_t *pud = pud_offset(pgd, addr);
+#ifdef CONFIG_X86
+		if (!pud_large(*pud))
+#endif
 		if (!pud_none(*pud)) {
 			pmd_t *pmd = pmd_offset(pud, addr);
+#ifdef CONFIG_X86
+			if (!pmd_large(*pmd))
+#endif
 			if (!pmd_none(*pmd)) {
 				pte_t *ptep, pte;
 
@@ -348,7 +431,7 @@ static void purge_vmap_area_lazy(void);
  * Allocate a region of KVA of the specified size and alignment, within the
  * vstart and vend.
  */
-static struct vmap_area *alloc_vmap_area(unsigned long size,
+static struct vmap_area * __size_overflow(1) alloc_vmap_area(unsigned long size,
 				unsigned long align,
 				unsigned long vstart, unsigned long vend,
 				int node, gfp_t gfp_mask)
@@ -1202,13 +1285,27 @@ void __init vmalloc_init(void)
 	for_each_possible_cpu(i) {
 		struct vmap_block_queue *vbq;
 		struct vfree_deferred *p;
+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
+		struct stack_deferred *p2;
+#endif
 
 		vbq = &per_cpu(vmap_block_queue, i);
 		spin_lock_init(&vbq->lock);
 		INIT_LIST_HEAD(&vbq->free);
+
 		p = &per_cpu(vfree_deferred, i);
 		init_llist_head(&p->list);
-		INIT_WORK(&p->wq, free_work);
+		INIT_WORK(&p->wq, vfree_work);
+
+		p = &per_cpu(vunmap_deferred, i);
+		init_llist_head(&p->list);
+		INIT_WORK(&p->wq, vunmap_work);
+
+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
+		p2 = &per_cpu(stack_deferred, i);
+		init_llist_head(&p2->list.list);
+		INIT_WORK(&p2->wq, unmap_work);
+#endif
 	}
 
 	/* Import existing vmlist entries. */
@@ -1333,6 +1430,16 @@ static struct vm_struct *__get_vm_area_node(unsigned long size,
 	struct vm_struct *area;
 
 	BUG_ON(in_interrupt());
+
+#if defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC)
+	if (flags & VM_KERNEXEC) {
+		if (start != VMALLOC_START || end != VMALLOC_END)
+			return NULL;
+		start = (unsigned long)MODULES_EXEC_VADDR;
+		end = (unsigned long)MODULES_EXEC_END;
+	}
+#endif
+
 	if (flags & VM_IOREMAP)
 		align = 1ul << clamp_t(int, fls_long(size),
 				       PAGE_SHIFT, IOREMAP_MAX_ORDER);
@@ -1345,7 +1452,11 @@ static struct vm_struct *__get_vm_area_node(unsigned long size,
 	if (unlikely(!area))
 		return NULL;
 
+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
+	if (!(flags & VM_NO_GUARD) || (start >= VMALLOC_START && end <= VMALLOC_END))
+#else
 	if (!(flags & VM_NO_GUARD))
+#endif
 		size += PAGE_SIZE;
 
 	va = alloc_vmap_area(size, align, start, end, node, gfp_mask);
@@ -1527,13 +1638,36 @@ EXPORT_SYMBOL(vfree);
  */
 void vunmap(const void *addr)
 {
-	BUG_ON(in_interrupt());
-	might_sleep();
-	if (addr)
+	if (!addr)
+		return;
+	if (unlikely(in_interrupt())) {
+		struct vfree_deferred *p = this_cpu_ptr(&vunmap_deferred);
+		if (llist_add((struct llist_node *)addr, &p->list))
+			schedule_work(&p->wq);
+	} else {
+		might_sleep();
 		__vunmap(addr, 0);
+	}
 }
 EXPORT_SYMBOL(vunmap);
 
+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
+void unmap_process_stacks(struct task_struct *task)
+{
+	if (unlikely(in_interrupt())) {
+		struct stack_deferred *p = this_cpu_ptr(&stack_deferred);
+		struct stack_deferred_llist *list = task->stack;
+		list->stack = task->stack;
+		list->lowmem_stack = task->lowmem_stack;
+		if (llist_add((struct llist_node *)&list->list, &p->list.list))
+			schedule_work(&p->wq);
+	} else {
+		__vunmap(task->stack, 0);
+		free_kmem_pages((unsigned long)task->lowmem_stack, THREAD_SIZE_ORDER);
+	}
+}
+#endif
+
 /**
  *	vmap  -  map an array of pages into virtually contiguous space
  *	@pages:		array of page pointers
@@ -1554,6 +1688,11 @@ void *vmap(struct page **pages, unsigned int count,
 	if (count > totalram_pages)
 		return NULL;
 
+#if defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC)
+	if (!(pgprot_val(prot) & _PAGE_NX))
+		flags |= VM_KERNEXEC;
+#endif
+
 	area = get_vm_area_caller((count << PAGE_SHIFT), flags,
 					__builtin_return_address(0));
 	if (!area)
@@ -1657,6 +1796,14 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
 	if (!size || (size >> PAGE_SHIFT) > totalram_pages)
 		goto fail;
 
+#if defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC)
+	if (!(pgprot_val(prot) & _PAGE_NX)) {
+		vm_flags |= VM_KERNEXEC;
+		start = VMALLOC_START;
+		end = VMALLOC_END;
+	}
+#endif
+
 	area = __get_vm_area_node(size, align, VM_ALLOC | VM_UNINITIALIZED |
 				vm_flags, start, end, node, gfp_mask, caller);
 	if (!area)
@@ -1710,6 +1857,14 @@ static void *__vmalloc_node(unsigned long size, unsigned long align,
 				gfp_mask, prot, 0, node, caller);
 }
 
+void *vmalloc_usercopy(unsigned long size)
+{
+	return __vmalloc_node_range(size, 1, VMALLOC_START, VMALLOC_END,
+				    GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL,
+				    VM_USERCOPY, NUMA_NO_NODE,
+				    __builtin_return_address(0));
+}
+
 void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot)
 {
 	return __vmalloc_node(size, 1, gfp_mask, prot, NUMA_NO_NODE,
@@ -1833,10 +1988,9 @@ EXPORT_SYMBOL(vzalloc_node);
  *	For tight control over page level allocator and protection flags
  *	use __vmalloc() instead.
  */
-
 void *vmalloc_exec(unsigned long size)
 {
-	return __vmalloc_node(size, 1, GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC,
+	return __vmalloc_node(size, 1, GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, PAGE_KERNEL_EXEC,
 			      NUMA_NO_NODE, __builtin_return_address(0));
 }
 
@@ -2143,6 +2297,8 @@ int remap_vmalloc_range_partial(struct vm_area_struct *vma, unsigned long uaddr,
 {
 	struct vm_struct *area;
 
+	BUG_ON(vma->vm_mirror);
+
 	size = PAGE_ALIGN(size);
 
 	if (!PAGE_ALIGNED(uaddr) || !PAGE_ALIGNED(kaddr))
@@ -2512,7 +2668,7 @@ found:
 	/* insert all vm's */
 	for (area = 0; area < nr_vms; area++)
 		setup_vmalloc_vm(vms[area], vas[area], VM_ALLOC,
-				 pcpu_get_vm_areas);
+				 __builtin_return_address(0));
 
 	kfree(vas);
 	return vms;
@@ -2625,7 +2781,11 @@ static int s_show(struct seq_file *m, void *p)
 		v->addr, v->addr + v->size, v->size);
 
 	if (v->caller)
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+		seq_printf(m, " %pK", v->caller);
+#else
 		seq_printf(m, " %pS", v->caller);
+#endif
 
 	if (v->nr_pages)
 		seq_printf(m, " pages=%d", v->nr_pages);
diff --git a/mm/vmstat.c b/mm/vmstat.c
index 5e43004..823a5d3 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -27,6 +27,7 @@
 #include <linux/mm_inline.h>
 #include <linux/page_ext.h>
 #include <linux/page_owner.h>
+#include <linux/grsecurity.h>
 
 #include "internal.h"
 
@@ -86,7 +87,7 @@ void vm_events_fold_cpu(int cpu)
  *
  * vm_stat contains the global counters
  */
-atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS] __cacheline_aligned_in_smp;
+atomic_long_unchecked_t vm_stat[NR_VM_ZONE_STAT_ITEMS] __cacheline_aligned_in_smp;
 EXPORT_SYMBOL(vm_stat);
 
 #ifdef CONFIG_SMP
@@ -438,7 +439,7 @@ static int fold_diff(int *diff)
 
 	for (i = 0; i < NR_VM_ZONE_STAT_ITEMS; i++)
 		if (diff[i]) {
-			atomic_long_add(diff[i], &vm_stat[i]);
+			atomic_long_add_unchecked(diff[i], &vm_stat[i]);
 			changes++;
 	}
 	return changes;
@@ -476,7 +477,7 @@ static int refresh_cpu_vm_stats(bool do_pagesets)
 			v = this_cpu_xchg(p->vm_stat_diff[i], 0);
 			if (v) {
 
-				atomic_long_add(v, &zone->vm_stat[i]);
+				atomic_long_add_unchecked(v, &zone->vm_stat[i]);
 				global_diff[i] += v;
 #ifdef CONFIG_NUMA
 				/* 3 seconds idle till flush */
@@ -542,7 +543,7 @@ void cpu_vm_stats_fold(int cpu)
 
 				v = p->vm_stat_diff[i];
 				p->vm_stat_diff[i] = 0;
-				atomic_long_add(v, &zone->vm_stat[i]);
+				atomic_long_add_unchecked(v, &zone->vm_stat[i]);
 				global_diff[i] += v;
 			}
 	}
@@ -562,8 +563,8 @@ void drain_zonestat(struct zone *zone, struct per_cpu_pageset *pset)
 		if (pset->vm_stat_diff[i]) {
 			int v = pset->vm_stat_diff[i];
 			pset->vm_stat_diff[i] = 0;
-			atomic_long_add(v, &zone->vm_stat[i]);
-			atomic_long_add(v, &vm_stat[i]);
+			atomic_long_add_unchecked(v, &zone->vm_stat[i]);
+			atomic_long_add_unchecked(v, &vm_stat[i]);
 		}
 }
 #endif
@@ -1309,10 +1310,22 @@ static void *vmstat_start(struct seq_file *m, loff_t *pos)
 	stat_items_size += sizeof(struct vm_event_state);
 #endif
 
-	v = kmalloc(stat_items_size, GFP_KERNEL);
+	v = kzalloc(stat_items_size, GFP_KERNEL);
 	m->private = v;
 	if (!v)
 		return ERR_PTR(-ENOMEM);
+
+#ifdef CONFIG_GRKERNSEC_PROC_ADD
+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
+        if (!uid_eq(current_uid(), GLOBAL_ROOT_UID)
+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
+                && !in_group_p(grsec_proc_gid)
+#endif
+        )
+		return (unsigned long *)m->private + *pos;
+#endif
+#endif
+
 	for (i = 0; i < NR_VM_ZONE_STAT_ITEMS; i++)
 		v[i] = global_page_state(i);
 	v += NR_VM_ZONE_STAT_ITEMS;
@@ -1578,10 +1591,16 @@ static int __init setup_vmstat(void)
 	cpu_notifier_register_done();
 #endif
 #ifdef CONFIG_PROC_FS
-	proc_create("buddyinfo", S_IRUGO, NULL, &fragmentation_file_operations);
-	proc_create("pagetypeinfo", S_IRUGO, NULL, &pagetypeinfo_file_ops);
-	proc_create("vmstat", S_IRUGO, NULL, &proc_vmstat_file_operations);
-	proc_create("zoneinfo", S_IRUGO, NULL, &proc_zoneinfo_file_operations);
+	{
+		mode_t gr_mode = S_IRUGO;
+#ifdef CONFIG_GRKERNSEC_PROC_ADD
+		gr_mode = S_IRUSR;
+#endif
+		proc_create("buddyinfo", gr_mode, NULL, &fragmentation_file_operations);
+		proc_create("pagetypeinfo", gr_mode, NULL, &pagetypeinfo_file_ops);
+		proc_create("vmstat", S_IRUGO, NULL, &proc_vmstat_file_operations);
+		proc_create("zoneinfo", gr_mode, NULL, &proc_zoneinfo_file_operations);
+	}
 #endif
 	return 0;
 }
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index a1e273a..2229e93 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -491,7 +491,7 @@ out:
 	return NOTIFY_DONE;
 }
 
-static struct notifier_block vlan_notifier_block __read_mostly = {
+static struct notifier_block vlan_notifier_block = {
 	.notifier_call = vlan_device_event,
 };
 
@@ -566,8 +566,7 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg)
 		err = -EPERM;
 		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			break;
-		if ((args.u.name_type >= 0) &&
-		    (args.u.name_type < VLAN_NAME_TYPE_HIGHEST)) {
+		if (args.u.name_type < VLAN_NAME_TYPE_HIGHEST) {
 			struct vlan_net *vn;
 
 			vn = net_generic(net, vlan_net_id);
diff --git a/net/8021q/vlan_netlink.c b/net/8021q/vlan_netlink.c
index c92b52f..006c052 100644
--- a/net/8021q/vlan_netlink.c
+++ b/net/8021q/vlan_netlink.c
@@ -245,7 +245,7 @@ static struct net *vlan_get_link_net(const struct net_device *dev)
 	return dev_net(real_dev);
 }
 
-struct rtnl_link_ops vlan_link_ops __read_mostly = {
+struct rtnl_link_ops vlan_link_ops = {
 	.kind		= "vlan",
 	.maxtype	= IFLA_VLAN_MAX,
 	.policy		= vlan_policy,
diff --git a/net/9p/mod.c b/net/9p/mod.c
index 6ab36ae..6f1841b 100644
--- a/net/9p/mod.c
+++ b/net/9p/mod.c
@@ -84,7 +84,7 @@ static LIST_HEAD(v9fs_trans_list);
 void v9fs_register_trans(struct p9_trans_module *m)
 {
 	spin_lock(&v9fs_trans_lock);
-	list_add_tail(&m->list, &v9fs_trans_list);
+	pax_list_add_tail((struct list_head *)&m->list, &v9fs_trans_list);
 	spin_unlock(&v9fs_trans_lock);
 }
 EXPORT_SYMBOL(v9fs_register_trans);
@@ -97,7 +97,7 @@ EXPORT_SYMBOL(v9fs_register_trans);
 void v9fs_unregister_trans(struct p9_trans_module *m)
 {
 	spin_lock(&v9fs_trans_lock);
-	list_del_init(&m->list);
+	pax_list_del_init((struct list_head *)&m->list);
 	spin_unlock(&v9fs_trans_lock);
 }
 EXPORT_SYMBOL(v9fs_unregister_trans);
diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c
index 7bc2208..79c8068 100644
--- a/net/9p/trans_fd.c
+++ b/net/9p/trans_fd.c
@@ -432,7 +432,7 @@ static int p9_fd_write(struct p9_client *client, void *v, int len)
 	oldfs = get_fs();
 	set_fs(get_ds());
 	/* The cast to a user pointer is valid due to the set_fs() */
-	ret = vfs_write(ts->wr, (__force void __user *)v, len, &ts->wr->f_pos);
+	ret = vfs_write(ts->wr, (void __force_user *)v, len, &ts->wr->f_pos);
 	set_fs(oldfs);
 
 	if (ret <= 0 && ret != -ERESTARTSYS && ret != -EAGAIN)
diff --git a/net/appletalk/atalk_proc.c b/net/appletalk/atalk_proc.c
index af46bc4..f9adfcd 100644
--- a/net/appletalk/atalk_proc.c
+++ b/net/appletalk/atalk_proc.c
@@ -256,7 +256,7 @@ int __init atalk_proc_init(void)
 	struct proc_dir_entry *p;
 	int rc = -ENOMEM;
 
-	atalk_proc_dir = proc_mkdir("atalk", init_net.proc_net);
+	atalk_proc_dir = proc_mkdir_restrict("atalk", init_net.proc_net);
 	if (!atalk_proc_dir)
 		goto out;
 
diff --git a/net/atm/atm_misc.c b/net/atm/atm_misc.c
index 876fbe8..8bbea9f 100644
--- a/net/atm/atm_misc.c
+++ b/net/atm/atm_misc.c
@@ -17,7 +17,7 @@ int atm_charge(struct atm_vcc *vcc, int truesize)
 	if (atomic_read(&sk_atm(vcc)->sk_rmem_alloc) <= sk_atm(vcc)->sk_rcvbuf)
 		return 1;
 	atm_return(vcc, truesize);
-	atomic_inc(&vcc->stats->rx_drop);
+	atomic_inc_unchecked(&vcc->stats->rx_drop);
 	return 0;
 }
 EXPORT_SYMBOL(atm_charge);
@@ -39,7 +39,7 @@ struct sk_buff *atm_alloc_charge(struct atm_vcc *vcc, int pdu_size,
 		}
 	}
 	atm_return(vcc, guess);
-	atomic_inc(&vcc->stats->rx_drop);
+	atomic_inc_unchecked(&vcc->stats->rx_drop);
 	return NULL;
 }
 EXPORT_SYMBOL(atm_alloc_charge);
@@ -86,7 +86,7 @@ EXPORT_SYMBOL(atm_pcr_goal);
 
 void sonet_copy_stats(struct k_sonet_stats *from, struct sonet_stats *to)
 {
-#define __HANDLE_ITEM(i) to->i = atomic_read(&from->i)
+#define __HANDLE_ITEM(i) to->i = atomic_read_unchecked(&from->i)
 	__SONET_ITEMS
 #undef __HANDLE_ITEM
 }
@@ -94,7 +94,7 @@ EXPORT_SYMBOL(sonet_copy_stats);
 
 void sonet_subtract_stats(struct k_sonet_stats *from, struct sonet_stats *to)
 {
-#define __HANDLE_ITEM(i) atomic_sub(to->i, &from->i)
+#define __HANDLE_ITEM(i) atomic_sub_unchecked(to->i,&from->i)
 	__SONET_ITEMS
 #undef __HANDLE_ITEM
 }
diff --git a/net/atm/lec.c b/net/atm/lec.c
index cd3b379..977a3c9 100644
--- a/net/atm/lec.c
+++ b/net/atm/lec.c
@@ -111,9 +111,9 @@ static inline void lec_arp_put(struct lec_arp_table *entry)
 }
 
 static struct lane2_ops lane2_ops = {
-	lane2_resolve,		/* resolve,             spec 3.1.3 */
-	lane2_associate_req,	/* associate_req,       spec 3.1.4 */
-	NULL			/* associate indicator, spec 3.1.5 */
+	.resolve = lane2_resolve,
+	.associate_req = lane2_associate_req,
+	.associate_indicator = NULL
 };
 
 static unsigned char bus_mac[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
diff --git a/net/atm/lec.h b/net/atm/lec.h
index 4149db1..f2ab682 100644
--- a/net/atm/lec.h
+++ b/net/atm/lec.h
@@ -48,7 +48,7 @@ struct lane2_ops {
 			      const u8 *tlvs, u32 sizeoftlvs);
 	void (*associate_indicator) (struct net_device *dev, const u8 *mac_addr,
 				     const u8 *tlvs, u32 sizeoftlvs);
-};
+} __no_const;
 
 /*
  * ATM LAN Emulation supports both LLC & Dix Ethernet EtherType
diff --git a/net/atm/mpoa_caches.c b/net/atm/mpoa_caches.c
index 9e60e74..a89fdeb 100644
--- a/net/atm/mpoa_caches.c
+++ b/net/atm/mpoa_caches.c
@@ -535,33 +535,32 @@ static void eg_destroy_cache(struct mpoa_client *mpc)
 
 
 static const struct in_cache_ops ingress_ops = {
-	in_cache_add_entry,               /* add_entry       */
-	in_cache_get,                     /* get             */
-	in_cache_get_with_mask,           /* get_with_mask   */
-	in_cache_get_by_vcc,              /* get_by_vcc      */
-	in_cache_put,                     /* put             */
-	in_cache_remove_entry,            /* remove_entry    */
-	cache_hit,                        /* cache_hit       */
-	clear_count_and_expired,          /* clear_count     */
-	check_resolving_entries,          /* check_resolving */
-	refresh_entries,                  /* refresh         */
-	in_destroy_cache                  /* destroy_cache   */
+	.add_entry = in_cache_add_entry,
+	.get = in_cache_get,
+	.get_with_mask = in_cache_get_with_mask,
+	.get_by_vcc = in_cache_get_by_vcc,
+	.put = in_cache_put,
+	.remove_entry = in_cache_remove_entry,
+	.cache_hit = cache_hit,
+	.clear_count = clear_count_and_expired,
+	.check_resolving = check_resolving_entries,
+	.refresh = refresh_entries,
+	.destroy_cache = in_destroy_cache
 };
 
 static const struct eg_cache_ops egress_ops = {
-	eg_cache_add_entry,               /* add_entry        */
-	eg_cache_get_by_cache_id,         /* get_by_cache_id  */
-	eg_cache_get_by_tag,              /* get_by_tag       */
-	eg_cache_get_by_vcc,              /* get_by_vcc       */
-	eg_cache_get_by_src_ip,           /* get_by_src_ip    */
-	eg_cache_put,                     /* put              */
-	eg_cache_remove_entry,            /* remove_entry     */
-	update_eg_cache_entry,            /* update           */
-	clear_expired,                    /* clear_expired    */
-	eg_destroy_cache                  /* destroy_cache    */
+	.add_entry = eg_cache_add_entry,
+	.get_by_cache_id = eg_cache_get_by_cache_id,
+	.get_by_tag = eg_cache_get_by_tag,
+	.get_by_vcc = eg_cache_get_by_vcc,
+	.get_by_src_ip = eg_cache_get_by_src_ip,
+	.put = eg_cache_put,
+	.remove_entry = eg_cache_remove_entry,
+	.update = update_eg_cache_entry,
+	.clear_expired = clear_expired,
+	.destroy_cache = eg_destroy_cache
 };
 
-
 void atm_mpoa_init_cache(struct mpoa_client *mpc)
 {
 	mpc->in_ops = &ingress_ops;
diff --git a/net/atm/proc.c b/net/atm/proc.c
index bbb6461..cf04016 100644
--- a/net/atm/proc.c
+++ b/net/atm/proc.c
@@ -45,9 +45,9 @@ static void add_stats(struct seq_file *seq, const char *aal,
   const struct k_atm_aal_stats *stats)
 {
 	seq_printf(seq, "%s ( %d %d %d %d %d )", aal,
-		   atomic_read(&stats->tx), atomic_read(&stats->tx_err),
-		   atomic_read(&stats->rx), atomic_read(&stats->rx_err),
-		   atomic_read(&stats->rx_drop));
+		   atomic_read_unchecked(&stats->tx),atomic_read_unchecked(&stats->tx_err),
+		   atomic_read_unchecked(&stats->rx),atomic_read_unchecked(&stats->rx_err),
+		   atomic_read_unchecked(&stats->rx_drop));
 }
 
 static void atm_dev_info(struct seq_file *seq, const struct atm_dev *dev)
diff --git a/net/atm/resources.c b/net/atm/resources.c
index 0447d5d..3cf4728 100644
--- a/net/atm/resources.c
+++ b/net/atm/resources.c
@@ -160,7 +160,7 @@ EXPORT_SYMBOL(atm_dev_deregister);
 static void copy_aal_stats(struct k_atm_aal_stats *from,
     struct atm_aal_stats *to)
 {
-#define __HANDLE_ITEM(i) to->i = atomic_read(&from->i)
+#define __HANDLE_ITEM(i) to->i = atomic_read_unchecked(&from->i)
 	__AAL_STAT_ITEMS
 #undef __HANDLE_ITEM
 }
@@ -168,7 +168,7 @@ static void copy_aal_stats(struct k_atm_aal_stats *from,
 static void subtract_aal_stats(struct k_atm_aal_stats *from,
     struct atm_aal_stats *to)
 {
-#define __HANDLE_ITEM(i) atomic_sub(to->i, &from->i)
+#define __HANDLE_ITEM(i) atomic_sub_unchecked(to->i, &from->i)
 	__AAL_STAT_ITEMS
 #undef __HANDLE_ITEM
 }
diff --git a/net/ax25/sysctl_net_ax25.c b/net/ax25/sysctl_net_ax25.c
index 919a5ce..cc6b444 100644
--- a/net/ax25/sysctl_net_ax25.c
+++ b/net/ax25/sysctl_net_ax25.c
@@ -152,7 +152,7 @@ int ax25_register_dev_sysctl(ax25_dev *ax25_dev)
 {
 	char path[sizeof("net/ax25/") + IFNAMSIZ];
 	int k;
-	struct ctl_table *table;
+	ctl_table_no_const *table;
 
 	table = kmemdup(ax25_param_table, sizeof(ax25_param_table), GFP_KERNEL);
 	if (!table)
diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index cb2d1b9..b0459c4 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -319,7 +319,7 @@ static int batadv_iv_ogm_iface_enable(struct batadv_hard_iface *hard_iface)
 
 	/* randomize initial seqno to avoid collision */
 	get_random_bytes(&random_seqno, sizeof(random_seqno));
-	atomic_set(&hard_iface->bat_iv.ogm_seqno, random_seqno);
+	atomic_set_unchecked(&hard_iface->bat_iv.ogm_seqno, random_seqno);
 
 	hard_iface->bat_iv.ogm_buff_len = BATADV_OGM_HLEN;
 	ogm_buff = kmalloc(hard_iface->bat_iv.ogm_buff_len, GFP_ATOMIC);
@@ -926,9 +926,9 @@ static void batadv_iv_ogm_schedule(struct batadv_hard_iface *hard_iface)
 	batadv_ogm_packet->tvlv_len = htons(tvlv_len);
 
 	/* change sequence number to network order */
-	seqno = (u32)atomic_read(&hard_iface->bat_iv.ogm_seqno);
+	seqno = (u32)atomic_read_unchecked(&hard_iface->bat_iv.ogm_seqno);
 	batadv_ogm_packet->seqno = htonl(seqno);
-	atomic_inc(&hard_iface->bat_iv.ogm_seqno);
+	atomic_inc_unchecked(&hard_iface->bat_iv.ogm_seqno);
 
 	batadv_iv_ogm_slide_own_bcast_window(hard_iface);
 
@@ -1618,7 +1618,7 @@ static void batadv_iv_ogm_process(const struct sk_buff *skb, int ogm_offset,
 		return;
 
 	/* could be changed by schedule_own_packet() */
-	if_incoming_seqno = atomic_read(&if_incoming->bat_iv.ogm_seqno);
+	if_incoming_seqno = atomic_read_unchecked(&if_incoming->bat_iv.ogm_seqno);
 
 	if (ogm_packet->flags & BATADV_DIRECTLINK)
 		has_directlink_flag = true;
diff --git a/net/batman-adv/fragmentation.c b/net/batman-adv/fragmentation.c
index e6956d0..f59553fa 100644
--- a/net/batman-adv/fragmentation.c
+++ b/net/batman-adv/fragmentation.c
@@ -469,7 +469,7 @@ bool batadv_frag_send_packet(struct sk_buff *skb,
 	frag_header.packet_type = BATADV_UNICAST_FRAG;
 	frag_header.version = BATADV_COMPAT_VERSION;
 	frag_header.ttl = BATADV_TTL;
-	frag_header.seqno = htons(atomic_inc_return(&bat_priv->frag_seqno));
+	frag_header.seqno = htons(atomic_inc_return_unchecked(&bat_priv->frag_seqno));
 	frag_header.reserved = 0;
 	frag_header.no = 0;
 	frag_header.total_size = htons(skb->len);
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index b781bf7..46bb680 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -690,7 +690,7 @@ batadv_reroute_unicast_packet(struct batadv_priv *bat_priv,
 		if (!primary_if)
 			goto out;
 		orig_addr = primary_if->net_dev->dev_addr;
-		orig_ttvn = (u8)atomic_read(&bat_priv->tt.vn);
+		orig_ttvn = (u8)atomic_read_unchecked(&bat_priv->tt.vn);
 	} else {
 		orig_node = batadv_transtable_search(bat_priv, NULL, dst_addr,
 						     vid);
@@ -765,7 +765,7 @@ static int batadv_check_unicast_ttvn(struct batadv_priv *bat_priv,
 	 * value is used later to check if the node which sent (or re-routed
 	 * last time) the packet had an updated information or not
 	 */
-	curr_ttvn = (u8)atomic_read(&bat_priv->tt.vn);
+	curr_ttvn = (u8)atomic_read_unchecked(&bat_priv->tt.vn);
 	if (!batadv_is_my_mac(bat_priv, unicast_packet->dest)) {
 		orig_node = batadv_orig_hash_find(bat_priv,
 						  unicast_packet->dest);
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 8a136b6..446d0cb 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -179,7 +179,7 @@ static void batadv_interface_set_rx_mode(struct net_device *dev)
 {
 }
 
-static int batadv_interface_tx(struct sk_buff *skb,
+static netdev_tx_t batadv_interface_tx(struct sk_buff *skb,
 			       struct net_device *soft_iface)
 {
 	struct ethhdr *ethhdr;
@@ -331,7 +331,7 @@ send:
 				primary_if->net_dev->dev_addr);
 
 		/* set broadcast sequence number */
-		seqno = atomic_inc_return(&bat_priv->bcast_seqno);
+		seqno = atomic_inc_return_unchecked(&bat_priv->bcast_seqno);
 		bcast_packet->seqno = htonl(seqno);
 
 		batadv_add_bcast_packet_to_list(bat_priv, skb, brd_delay);
@@ -817,8 +817,8 @@ static int batadv_softif_init_late(struct net_device *dev)
 	atomic_set(&bat_priv->batman_queue_left, BATADV_BATMAN_QUEUE_LEN);
 
 	atomic_set(&bat_priv->mesh_state, BATADV_MESH_INACTIVE);
-	atomic_set(&bat_priv->bcast_seqno, 1);
-	atomic_set(&bat_priv->tt.vn, 0);
+	atomic_set_unchecked(&bat_priv->bcast_seqno, 1);
+	atomic_set_unchecked(&bat_priv->tt.vn, 0);
 	atomic_set(&bat_priv->tt.local_changes, 0);
 	atomic_set(&bat_priv->tt.ogm_append_cnt, 0);
 #ifdef CONFIG_BATMAN_ADV_BLA
@@ -831,7 +831,7 @@ static int batadv_softif_init_late(struct net_device *dev)
 
 	/* randomize initial seqno to avoid collision */
 	get_random_bytes(&random_seqno, sizeof(random_seqno));
-	atomic_set(&bat_priv->frag_seqno, random_seqno);
+	atomic_set_unchecked(&bat_priv->frag_seqno, random_seqno);
 
 	bat_priv->primary_if = NULL;
 	bat_priv->num_ifaces = 0;
@@ -1037,7 +1037,7 @@ int batadv_softif_is_valid(const struct net_device *net_dev)
 	return 0;
 }
 
-struct rtnl_link_ops batadv_link_ops __read_mostly = {
+struct rtnl_link_ops batadv_link_ops = {
 	.kind		= "batadv",
 	.priv_size	= sizeof(struct batadv_priv),
 	.setup		= batadv_softif_init_early,
diff --git a/net/batman-adv/sysfs.c b/net/batman-adv/sysfs.c
index e7cf513..f4de9cc 100644
--- a/net/batman-adv/sysfs.c
+++ b/net/batman-adv/sysfs.c
@@ -143,7 +143,7 @@ struct batadv_attribute batadv_attr_##_name = {		\
 
 #define BATADV_ATTR_SIF_STORE_BOOL(_name, _post_func)			\
 ssize_t batadv_store_##_name(struct kobject *kobj,			\
-			     struct attribute *attr, char *buff,	\
+			     struct kobj_attribute *attr, char *buff,	\
 			     size_t count)				\
 {									\
 	struct net_device *net_dev = batadv_kobj_to_netdev(kobj);	\
@@ -155,7 +155,7 @@ ssize_t batadv_store_##_name(struct kobject *kobj,			\
 
 #define BATADV_ATTR_SIF_SHOW_BOOL(_name)				\
 ssize_t batadv_show_##_name(struct kobject *kobj,			\
-			    struct attribute *attr, char *buff)		\
+			    struct kobj_attribute *attr, char *buff)	\
 {									\
 	struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj);	\
 									\
@@ -175,7 +175,7 @@ ssize_t batadv_show_##_name(struct kobject *kobj,			\
 
 #define BATADV_ATTR_SIF_STORE_UINT(_name, _var, _min, _max, _post_func)	\
 ssize_t batadv_store_##_name(struct kobject *kobj,			\
-			     struct attribute *attr, char *buff,	\
+			     struct kobj_attribute *attr, char *buff,	\
 			     size_t count)				\
 {									\
 	struct net_device *net_dev = batadv_kobj_to_netdev(kobj);	\
@@ -188,7 +188,7 @@ ssize_t batadv_store_##_name(struct kobject *kobj,			\
 
 #define BATADV_ATTR_SIF_SHOW_UINT(_name, _var)				\
 ssize_t batadv_show_##_name(struct kobject *kobj,			\
-			    struct attribute *attr, char *buff)		\
+			    struct kobj_attribute *attr, char *buff)	\
 {									\
 	struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj);	\
 									\
@@ -206,7 +206,7 @@ ssize_t batadv_show_##_name(struct kobject *kobj,			\
 
 #define BATADV_ATTR_VLAN_STORE_BOOL(_name, _post_func)			\
 ssize_t batadv_store_vlan_##_name(struct kobject *kobj,			\
-				  struct attribute *attr, char *buff,	\
+				  struct kobj_attribute *attr, char *buff,\
 				  size_t count)				\
 {									\
 	struct batadv_priv *bat_priv = batadv_vlan_kobj_to_batpriv(kobj);\
@@ -222,7 +222,7 @@ ssize_t batadv_store_vlan_##_name(struct kobject *kobj,			\
 
 #define BATADV_ATTR_VLAN_SHOW_BOOL(_name)				\
 ssize_t batadv_show_vlan_##_name(struct kobject *kobj,			\
-				 struct attribute *attr, char *buff)	\
+				 struct kobj_attribute *attr, char *buff)\
 {									\
 	struct batadv_priv *bat_priv = batadv_vlan_kobj_to_batpriv(kobj);\
 	struct batadv_softif_vlan *vlan = batadv_kobj_to_vlan(bat_priv,	\
@@ -244,7 +244,7 @@ ssize_t batadv_show_vlan_##_name(struct kobject *kobj,			\
 
 #define BATADV_ATTR_HIF_STORE_UINT(_name, _var, _min, _max, _post_func)	\
 ssize_t batadv_store_##_name(struct kobject *kobj,			\
-			     struct attribute *attr, char *buff,	\
+			     struct kobj_attribute *attr, char *buff,	\
 			     size_t count)				\
 {									\
 	struct net_device *net_dev = batadv_kobj_to_netdev(kobj);	\
@@ -265,7 +265,7 @@ ssize_t batadv_store_##_name(struct kobject *kobj,			\
 
 #define BATADV_ATTR_HIF_SHOW_UINT(_name, _var)				\
 ssize_t batadv_show_##_name(struct kobject *kobj,			\
-			    struct attribute *attr, char *buff)		\
+			    struct kobj_attribute *attr, char *buff)		\
 {									\
 	struct net_device *net_dev = batadv_kobj_to_netdev(kobj);	\
 	struct batadv_hard_iface *hard_iface;				\
@@ -335,13 +335,13 @@ static int batadv_store_bool_attr(char *buff, size_t count,
 static inline ssize_t
 __batadv_store_bool_attr(char *buff, size_t count,
 			 void (*post_func)(struct net_device *),
-			 struct attribute *attr,
+			 struct kobj_attribute *attr,
 			 atomic_t *attr_store, struct net_device *net_dev)
 {
 	bool changed;
 	int ret;
 
-	ret = batadv_store_bool_attr(buff, count, net_dev, attr->name,
+	ret = batadv_store_bool_attr(buff, count, net_dev, attr->attr.name,
 				     attr_store, &changed);
 	if (post_func && changed)
 		post_func(net_dev);
@@ -391,12 +391,12 @@ static inline ssize_t
 __batadv_store_uint_attr(const char *buff, size_t count,
 			 int min, int max,
 			 void (*post_func)(struct net_device *),
-			 const struct attribute *attr,
+			 const struct kobj_attribute *attr,
 			 atomic_t *attr_store, struct net_device *net_dev)
 {
 	int ret;
 
-	ret = batadv_store_uint_attr(buff, count, net_dev, attr->name, min, max,
+	ret = batadv_store_uint_attr(buff, count, net_dev, attr->attr.name, min, max,
 				     attr_store);
 	if (post_func && ret)
 		post_func(net_dev);
@@ -405,7 +405,7 @@ __batadv_store_uint_attr(const char *buff, size_t count,
 }
 
 static ssize_t batadv_show_bat_algo(struct kobject *kobj,
-				    struct attribute *attr, char *buff)
+				    struct kobj_attribute *attr, char *buff)
 {
 	struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj);
 
@@ -419,7 +419,7 @@ static void batadv_post_gw_reselect(struct net_device *net_dev)
 	batadv_gw_reselect(bat_priv);
 }
 
-static ssize_t batadv_show_gw_mode(struct kobject *kobj, struct attribute *attr,
+static ssize_t batadv_show_gw_mode(struct kobject *kobj, struct kobj_attribute *attr,
 				   char *buff)
 {
 	struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj);
@@ -444,7 +444,7 @@ static ssize_t batadv_show_gw_mode(struct kobject *kobj, struct attribute *attr,
 }
 
 static ssize_t batadv_store_gw_mode(struct kobject *kobj,
-				    struct attribute *attr, char *buff,
+				    struct kobj_attribute *attr, char *buff,
 				    size_t count)
 {
 	struct net_device *net_dev = batadv_kobj_to_netdev(kobj);
@@ -512,7 +512,7 @@ static ssize_t batadv_store_gw_mode(struct kobject *kobj,
 }
 
 static ssize_t batadv_show_gw_bwidth(struct kobject *kobj,
-				     struct attribute *attr, char *buff)
+				     struct kobj_attribute *attr, char *buff)
 {
 	struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj);
 	u32 down, up;
@@ -525,7 +525,7 @@ static ssize_t batadv_show_gw_bwidth(struct kobject *kobj,
 }
 
 static ssize_t batadv_store_gw_bwidth(struct kobject *kobj,
-				      struct attribute *attr, char *buff,
+				      struct kobj_attribute *attr, char *buff,
 				      size_t count)
 {
 	struct net_device *net_dev = batadv_kobj_to_netdev(kobj);
@@ -546,7 +546,7 @@ static ssize_t batadv_store_gw_bwidth(struct kobject *kobj,
  * error code in case of failure
  */
 static ssize_t batadv_show_isolation_mark(struct kobject *kobj,
-					  struct attribute *attr, char *buff)
+					  struct kobj_attribute *attr, char *buff)
 {
 	struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj);
 
@@ -565,7 +565,7 @@ static ssize_t batadv_show_isolation_mark(struct kobject *kobj,
  * Return: 'count' on success or a negative error code in case of failure
  */
 static ssize_t batadv_store_isolation_mark(struct kobject *kobj,
-					   struct attribute *attr, char *buff,
+					   struct kobj_attribute *attr, char *buff,
 					   size_t count)
 {
 	struct net_device *net_dev = batadv_kobj_to_netdev(kobj);
@@ -802,7 +802,7 @@ void batadv_sysfs_del_vlan(struct batadv_priv *bat_priv,
 }
 
 static ssize_t batadv_show_mesh_iface(struct kobject *kobj,
-				      struct attribute *attr, char *buff)
+				      struct kobj_attribute *attr, char *buff)
 {
 	struct net_device *net_dev = batadv_kobj_to_netdev(kobj);
 	struct batadv_hard_iface *hard_iface;
@@ -826,7 +826,7 @@ static ssize_t batadv_show_mesh_iface(struct kobject *kobj,
 }
 
 static ssize_t batadv_store_mesh_iface(struct kobject *kobj,
-				       struct attribute *attr, char *buff,
+				       struct kobj_attribute *attr, char *buff,
 				       size_t count)
 {
 	struct net_device *net_dev = batadv_kobj_to_netdev(kobj);
@@ -883,7 +883,7 @@ out:
 }
 
 static ssize_t batadv_show_iface_status(struct kobject *kobj,
-					struct attribute *attr, char *buff)
+					struct kobj_attribute *attr, char *buff)
 {
 	struct net_device *net_dev = batadv_kobj_to_netdev(kobj);
 	struct batadv_hard_iface *hard_iface;
@@ -930,7 +930,7 @@ static ssize_t batadv_show_iface_status(struct kobject *kobj,
  * Return: 'count' on success or a negative error code in case of failure
  */
 static ssize_t batadv_store_throughput_override(struct kobject *kobj,
-						struct attribute *attr,
+						struct kobj_attribute *attr,
 						char *buff, size_t count)
 {
 	struct net_device *net_dev = batadv_kobj_to_netdev(kobj);
@@ -968,7 +968,7 @@ out:
 }
 
 static ssize_t batadv_show_throughput_override(struct kobject *kobj,
-					       struct attribute *attr,
+					       struct kobj_attribute *attr,
 					       char *buff)
 {
 	struct net_device *net_dev = batadv_kobj_to_netdev(kobj);
diff --git a/net/batman-adv/sysfs.h b/net/batman-adv/sysfs.h
index c76021b..3aef377 100644
--- a/net/batman-adv/sysfs.h
+++ b/net/batman-adv/sysfs.h
@@ -37,9 +37,9 @@ struct net_device;
 
 struct batadv_attribute {
 	struct attribute attr;
-	ssize_t (*show)(struct kobject *kobj, struct attribute *attr,
+	ssize_t (*show)(struct kobject *kobj, struct kobj_attribute *attr,
 			char *buf);
-	ssize_t (*store)(struct kobject *kobj, struct attribute *attr,
+	ssize_t (*store)(struct kobject *kobj, struct kobj_attribute *attr,
 			 char *buf, size_t count);
 };
 
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 9b4551a..426c047 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -660,7 +660,7 @@ bool batadv_tt_local_add(struct net_device *soft_iface, const u8 *addr,
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
 		   "Creating new local tt entry: %pM (vid: %d, ttvn: %d)\n",
 		   addr, BATADV_PRINT_VID(vid),
-		   (u8)atomic_read(&bat_priv->tt.vn));
+		   (u8)atomic_read_unchecked(&bat_priv->tt.vn));
 
 	ether_addr_copy(tt_local->common.addr, addr);
 	/* The local entry has to be marked as NEW to avoid to send it in
@@ -891,7 +891,7 @@ batadv_tt_prepare_tvlv_local_data(struct batadv_priv *bat_priv,
 	}
 
 	(*tt_data)->flags = BATADV_NO_FLAGS;
-	(*tt_data)->ttvn = atomic_read(&bat_priv->tt.vn);
+	(*tt_data)->ttvn = atomic_read_unchecked(&bat_priv->tt.vn);
 	(*tt_data)->num_vlan = htons(num_vlan);
 
 	tt_vlan = (struct batadv_tvlv_tt_vlan_data *)(*tt_data + 1);
@@ -1009,7 +1009,7 @@ int batadv_tt_local_seq_print_text(struct seq_file *seq, void *offset)
 
 	seq_printf(seq,
 		   "Locally retrieved addresses (from %s) announced via TT (TTVN: %u):\n",
-		   net_dev->name, (u8)atomic_read(&bat_priv->tt.vn));
+		   net_dev->name, (u8)atomic_read_unchecked(&bat_priv->tt.vn));
 	seq_printf(seq, "       %-13s  %s %-8s %-9s (%-10s)\n", "Client", "VID",
 		   "Flags", "Last seen", "CRC");
 
@@ -2786,7 +2786,7 @@ static bool batadv_send_my_tt_response(struct batadv_priv *bat_priv,
 
 	spin_lock_bh(&bat_priv->tt.commit_lock);
 
-	my_ttvn = (u8)atomic_read(&bat_priv->tt.vn);
+	my_ttvn = (u8)atomic_read_unchecked(&bat_priv->tt.vn);
 	req_ttvn = tt_data->ttvn;
 
 	orig_node = batadv_orig_hash_find(bat_priv, req_src);
@@ -2825,7 +2825,7 @@ static bool batadv_send_my_tt_response(struct batadv_priv *bat_priv,
 		       bat_priv->tt.last_changeset_len);
 		spin_unlock_bh(&bat_priv->tt.last_changeset_lock);
 	} else {
-		req_ttvn = (u8)atomic_read(&bat_priv->tt.vn);
+		req_ttvn = (u8)atomic_read_unchecked(&bat_priv->tt.vn);
 
 		/* allocate the tvlv, put the tt_data and all the tt_vlan_data
 		 * in the initial part
@@ -3344,10 +3344,10 @@ static void batadv_tt_local_commit_changes_nolock(struct batadv_priv *bat_priv)
 	batadv_tt_local_update_crc(bat_priv);
 
 	/* Increment the TTVN only once per OGM interval */
-	atomic_inc(&bat_priv->tt.vn);
+	atomic_inc_unchecked(&bat_priv->tt.vn);
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
 		   "Local changes committed, updating to ttvn %u\n",
-		   (u8)atomic_read(&bat_priv->tt.vn));
+		   (u8)atomic_read_unchecked(&bat_priv->tt.vn));
 
 	/* reset the sending counter */
 	atomic_set(&bat_priv->tt.ogm_append_cnt, BATADV_TT_OGM_APPEND_MAX);
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 1e47fbe..7b48a58 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -83,7 +83,7 @@ enum batadv_dhcp_recipient {
 struct batadv_hard_iface_bat_iv {
 	unsigned char *ogm_buff;
 	int ogm_buff_len;
-	atomic_t ogm_seqno;
+	atomic_unchecked_t ogm_seqno;
 };
 
 /**
@@ -630,7 +630,7 @@ enum batadv_counters {
  * @work: work queue callback item for translation table purging
  */
 struct batadv_priv_tt {
-	atomic_t vn;
+	atomic_unchecked_t vn;
 	atomic_t ogm_append_cnt;
 	atomic_t local_changes;
 	struct list_head changes_list;
@@ -906,7 +906,7 @@ struct batadv_priv {
 	atomic_t bonding;
 	atomic_t fragmentation;
 	atomic_t packet_size_max;
-	atomic_t frag_seqno;
+	atomic_unchecked_t frag_seqno;
 #ifdef CONFIG_BATMAN_ADV_BLA
 	atomic_t bridge_loop_avoidance;
 #endif
@@ -925,7 +925,7 @@ struct batadv_priv {
 #endif
 	u32 isolation_mark;
 	u32 isolation_mark_mask;
-	atomic_t bcast_seqno;
+	atomic_unchecked_t bcast_seqno;
 	atomic_t bcast_queue_left;
 	atomic_t batman_queue_left;
 	char num_ifaces;
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 1298d72..423f410 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -1477,7 +1477,7 @@ static int hci_sock_setsockopt(struct socket *sock, int level, int optname,
 			uf.event_mask[1] = *((u32 *) f->event_mask + 1);
 		}
 
-		len = min_t(unsigned int, len, sizeof(uf));
+		len = min((size_t)len, sizeof(uf));
 		if (copy_from_user(&uf, optval, len)) {
 			err = -EFAULT;
 			break;
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index eb4f5f2..2cc4c50 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -3547,8 +3547,10 @@ static int l2cap_parse_conf_rsp(struct l2cap_chan *chan, void *rsp, int len,
 			break;
 
 		case L2CAP_CONF_RFC:
-			if (olen == sizeof(rfc))
-				memcpy(&rfc, (void *)val, olen);
+			if (olen != sizeof(rfc))
+				break;
+
+			memcpy(&rfc, (void *)val, olen);
 
 			if (test_bit(CONF_STATE2_DEVICE, &chan->conf_state) &&
 			    rfc.mode != chan->mode)
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index e4cae72..95cc097ba 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -633,7 +633,8 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname,
 	struct sock *sk = sock->sk;
 	struct l2cap_chan *chan = l2cap_pi(sk)->chan;
 	struct l2cap_options opts;
-	int len, err = 0;
+	int err = 0;
+	size_t len = optlen;
 	u32 opt;
 
 	BT_DBG("sk %p", sk);
@@ -660,7 +661,7 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname,
 		opts.max_tx   = chan->max_tx;
 		opts.txwin_size = chan->tx_win;
 
-		len = min_t(unsigned int, sizeof(opts), optlen);
+		len = min(sizeof(opts), len);
 		if (copy_from_user((char *) &opts, optval, len)) {
 			err = -EFAULT;
 			break;
@@ -747,7 +748,8 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
 	struct bt_security sec;
 	struct bt_power pwr;
 	struct l2cap_conn *conn;
-	int len, err = 0;
+	int err = 0;
+	size_t len = optlen;
 	u32 opt;
 
 	BT_DBG("sk %p", sk);
@@ -771,7 +773,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
 
 		sec.level = BT_SECURITY_LOW;
 
-		len = min_t(unsigned int, sizeof(sec), optlen);
+		len = min(sizeof(sec), len);
 		if (copy_from_user((char *) &sec, optval, len)) {
 			err = -EFAULT;
 			break;
@@ -867,7 +869,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
 
 		pwr.force_active = BT_POWER_FORCE_ACTIVE_ON;
 
-		len = min_t(unsigned int, sizeof(pwr), optlen);
+		len = min(sizeof(pwr), len);
 		if (copy_from_user((char *) &pwr, optval, len)) {
 			err = -EFAULT;
 			break;
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index 7511df7..a670df3 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -690,7 +690,7 @@ static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, c
 	struct sock *sk = sock->sk;
 	struct bt_security sec;
 	int err = 0;
-	size_t len;
+	size_t len = optlen;
 	u32 opt;
 
 	BT_DBG("sk %p", sk);
@@ -712,7 +712,7 @@ static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, c
 
 		sec.level = BT_SECURITY_LOW;
 
-		len = min_t(unsigned int, sizeof(sec), optlen);
+		len = min(sizeof(sec), len);
 		if (copy_from_user((char *) &sec, optval, len)) {
 			err = -EFAULT;
 			break;
diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c
index 8e385a0..a5bdd8e 100644
--- a/net/bluetooth/rfcomm/tty.c
+++ b/net/bluetooth/rfcomm/tty.c
@@ -752,7 +752,7 @@ static int rfcomm_tty_open(struct tty_struct *tty, struct file *filp)
 	BT_DBG("tty %p id %d", tty, tty->index);
 
 	BT_DBG("dev %p dst %pMR channel %d opened %d", dev, &dev->dst,
-	       dev->channel, dev->port.count);
+	       dev->channel, atomic_read(&dev->port.count));
 
 	err = tty_port_open(&dev->port, tty, filp);
 	if (err)
@@ -775,7 +775,7 @@ static void rfcomm_tty_close(struct tty_struct *tty, struct file *filp)
 	struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data;
 
 	BT_DBG("tty %p dev %p dlc %p opened %d", tty, dev, dev->dlc,
-						dev->port.count);
+						atomic_read(&dev->port.count));
 
 	tty_port_close(&dev->port, tty, filp);
 }
diff --git a/net/bridge/br_netfilter_hooks.c b/net/bridge/br_netfilter_hooks.c
index 44114a9..376287c 100644
--- a/net/bridge/br_netfilter_hooks.c
+++ b/net/bridge/br_netfilter_hooks.c
@@ -982,13 +982,13 @@ static void __net_exit brnf_exit_net(struct net *net)
 	brnet->enabled = false;
 }
 
-static struct pernet_operations brnf_net_ops __read_mostly = {
+static struct pernet_operations brnf_net_ops = {
 	.exit = brnf_exit_net,
 	.id   = &brnf_net_id,
 	.size = sizeof(struct brnf_net),
 };
 
-static struct notifier_block brnf_notifier __read_mostly = {
+static struct notifier_block brnf_notifier = {
 	.notifier_call = brnf_device_event,
 };
 
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index e9c635e..f55c87be 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -1219,7 +1219,7 @@ static struct rtnl_af_ops br_af_ops __read_mostly = {
 	.get_link_af_size	= br_get_link_af_size_filtered,
 };
 
-struct rtnl_link_ops br_link_ops __read_mostly = {
+struct rtnl_link_ops br_link_ops = {
 	.kind			= "bridge",
 	.priv_size		= sizeof(struct net_bridge),
 	.setup			= br_dev_setup,
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index 5a61f35..57ab16d 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -1549,7 +1549,7 @@ static int do_ebt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
 			tmp.valid_hooks = t->table->valid_hooks;
 		}
 		mutex_unlock(&ebt_mutex);
-		if (copy_to_user(user, &tmp, *len) != 0) {
+		if (*len > sizeof(tmp) || copy_to_user(user, &tmp, *len) != 0) {
 			BUGPRINT("c2u Didn't work\n");
 			ret = -EFAULT;
 			break;
@@ -2353,7 +2353,7 @@ static int compat_do_ebt_get_ctl(struct sock *sk, int cmd,
 			goto out;
 		tmp.valid_hooks = t->valid_hooks;
 
-		if (copy_to_user(user, &tmp, *len) != 0) {
+		if (*len > sizeof(tmp) || copy_to_user(user, &tmp, *len) != 0) {
 			ret = -EFAULT;
 			break;
 		}
@@ -2364,7 +2364,7 @@ static int compat_do_ebt_get_ctl(struct sock *sk, int cmd,
 		tmp.entries_size = t->table->entries_size;
 		tmp.valid_hooks = t->table->valid_hooks;
 
-		if (copy_to_user(user, &tmp, *len) != 0) {
+		if (*len > sizeof(tmp) || copy_to_user(user, &tmp, *len) != 0) {
 			ret = -EFAULT;
 			break;
 		}
diff --git a/net/caif/cfctrl.c b/net/caif/cfctrl.c
index f5afda1..dcf770a 100644
--- a/net/caif/cfctrl.c
+++ b/net/caif/cfctrl.c
@@ -10,6 +10,7 @@
 #include <linux/spinlock.h>
 #include <linux/slab.h>
 #include <linux/pkt_sched.h>
+#include <linux/sched.h>
 #include <net/caif/caif_layer.h>
 #include <net/caif/cfpkt.h>
 #include <net/caif/cfctrl.h>
@@ -43,8 +44,8 @@ struct cflayer *cfctrl_create(void)
 	memset(&dev_info, 0, sizeof(dev_info));
 	dev_info.id = 0xff;
 	cfsrvl_init(&this->serv, 0, &dev_info, false);
-	atomic_set(&this->req_seq_no, 1);
-	atomic_set(&this->rsp_seq_no, 1);
+	atomic_set_unchecked(&this->req_seq_no, 1);
+	atomic_set_unchecked(&this->rsp_seq_no, 1);
 	this->serv.layer.receive = cfctrl_recv;
 	sprintf(this->serv.layer.name, "ctrl");
 	this->serv.layer.ctrlcmd = cfctrl_ctrlcmd;
@@ -130,8 +131,8 @@ static void cfctrl_insert_req(struct cfctrl *ctrl,
 			      struct cfctrl_request_info *req)
 {
 	spin_lock_bh(&ctrl->info_list_lock);
-	atomic_inc(&ctrl->req_seq_no);
-	req->sequence_no = atomic_read(&ctrl->req_seq_no);
+	atomic_inc_unchecked(&ctrl->req_seq_no);
+	req->sequence_no = atomic_read_unchecked(&ctrl->req_seq_no);
 	list_add_tail(&req->list, &ctrl->list);
 	spin_unlock_bh(&ctrl->info_list_lock);
 }
@@ -149,7 +150,7 @@ static struct cfctrl_request_info *cfctrl_remove_req(struct cfctrl *ctrl,
 			if (p != first)
 				pr_warn("Requests are not received in order\n");
 
-			atomic_set(&ctrl->rsp_seq_no,
+			atomic_set_unchecked(&ctrl->rsp_seq_no,
 					 p->sequence_no);
 			list_del(&p->list);
 			goto out;
diff --git a/net/caif/chnl_net.c b/net/caif/chnl_net.c
index 67a4a36..406eefc 100644
--- a/net/caif/chnl_net.c
+++ b/net/caif/chnl_net.c
@@ -214,7 +214,7 @@ static void chnl_flowctrl_cb(struct cflayer *layr, enum caif_ctrlcmd flow,
 	}
 }
 
-static int chnl_net_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t chnl_net_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct chnl_net *priv;
 	struct cfpkt *pkt = NULL;
@@ -515,7 +515,7 @@ static const struct nla_policy ipcaif_policy[IFLA_CAIF_MAX + 1] = {
 };
 
 
-static struct rtnl_link_ops ipcaif_link_ops __read_mostly = {
+static struct rtnl_link_ops ipcaif_link_ops = {
 	.kind		= "caif",
 	.priv_size	= sizeof(struct chnl_net),
 	.setup		= ipcaif_net_setup,
diff --git a/net/can/af_can.c b/net/can/af_can.c
index 166d436..2920816 100644
--- a/net/can/af_can.c
+++ b/net/can/af_can.c
@@ -890,7 +890,7 @@ static const struct net_proto_family can_family_ops = {
 };
 
 /* notifier block for netdevice event */
-static struct notifier_block can_netdev_notifier __read_mostly = {
+static struct notifier_block can_netdev_notifier = {
 	.notifier_call = can_notifier,
 };
 
diff --git a/net/can/bcm.c b/net/can/bcm.c
index 6863310..78bd4c6 100644
--- a/net/can/bcm.c
+++ b/net/can/bcm.c
@@ -1625,7 +1625,7 @@ static int __init bcm_module_init(void)
 	}
 
 	/* create /proc/net/can-bcm directory */
-	proc_dir = proc_mkdir("can-bcm", init_net.proc_net);
+	proc_dir = proc_mkdir_restrict("can-bcm", init_net.proc_net);
 	return 0;
 }
 
diff --git a/net/can/gw.c b/net/can/gw.c
index 4551687..4e82e9b 100644
--- a/net/can/gw.c
+++ b/net/can/gw.c
@@ -80,7 +80,6 @@ MODULE_PARM_DESC(max_hops,
 		 "default: " __stringify(CGW_DEFAULT_HOPS) ")");
 
 static HLIST_HEAD(cgw_list);
-static struct notifier_block notifier;
 
 static struct kmem_cache *cgw_cache __read_mostly;
 
@@ -992,6 +991,10 @@ static int cgw_remove_job(struct sk_buff *skb, struct nlmsghdr *nlh)
 	return err;
 }
 
+static struct notifier_block notifier = {
+	.notifier_call = cgw_notifier
+};
+
 static __init int cgw_module_init(void)
 {
 	/* sanitize given module parameter */
@@ -1007,7 +1010,6 @@ static __init int cgw_module_init(void)
 		return -ENOMEM;
 
 	/* set notifier */
-	notifier.notifier_call = cgw_notifier;
 	register_netdevice_notifier(&notifier);
 
 	if (__rtnl_register(PF_CAN, RTM_GETROUTE, NULL, cgw_dump_jobs, NULL)) {
diff --git a/net/can/proc.c b/net/can/proc.c
index 1a19b98..df2b4ec 100644
--- a/net/can/proc.c
+++ b/net/can/proc.c
@@ -514,7 +514,7 @@ static void can_remove_proc_readentry(const char *name)
 void can_init_proc(void)
 {
 	/* create /proc/net/can directory */
-	can_dir = proc_mkdir("can", init_net.proc_net);
+	can_dir = proc_mkdir_restrict("can", init_net.proc_net);
 
 	if (!can_dir) {
 		printk(KERN_INFO "can: failed to create /proc/net/can . "
diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c
index dcc18c6..a236374 100644
--- a/net/ceph/ceph_common.c
+++ b/net/ceph/ceph_common.c
@@ -5,7 +5,7 @@
 #include <linux/fs.h>
 #include <linux/inet.h>
 #include <linux/in6.h>
-#include <linux/key.h>
+#include <linux/key-type.h>
 #include <keys/ceph-type.h>
 #include <linux/module.h>
 #include <linux/mount.h>
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index a550289..218652a 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -187,7 +187,7 @@ static void con_fault(struct ceph_connection *con);
 #define MAX_ADDR_STR_LEN	64	/* 54 is enough */
 
 static char addr_str[ADDR_STR_COUNT][MAX_ADDR_STR_LEN];
-static atomic_t addr_str_seq = ATOMIC_INIT(0);
+static atomic_unchecked_t addr_str_seq = ATOMIC_INIT(0);
 
 static struct page *zero_page;		/* used in certain error cases */
 
@@ -198,7 +198,7 @@ const char *ceph_pr_addr(const struct sockaddr_storage *ss)
 	struct sockaddr_in *in4 = (struct sockaddr_in *) ss;
 	struct sockaddr_in6 *in6 = (struct sockaddr_in6 *) ss;
 
-	i = atomic_inc_return(&addr_str_seq) & ADDR_STR_COUNT_MASK;
+	i = atomic_inc_return_unchecked(&addr_str_seq) & ADDR_STR_COUNT_MASK;
 	s = addr_str[i];
 
 	switch (ss->ss_family) {
diff --git a/net/compat.c b/net/compat.c
index 5cfd26a..3c50cb0 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -58,7 +58,7 @@ int get_compat_msghdr(struct msghdr *kmsg,
 
 	if (kmsg->msg_namelen > sizeof(struct sockaddr_storage))
 		kmsg->msg_namelen = sizeof(struct sockaddr_storage);
-	kmsg->msg_control = compat_ptr(tmp3);
+	kmsg->msg_control = (void __force_kernel *)compat_ptr(tmp3);
 
 	if (save_addr)
 		*save_addr = compat_ptr(uaddr);
@@ -98,20 +98,20 @@ int get_compat_msghdr(struct msghdr *kmsg,
 
 #define CMSG_COMPAT_FIRSTHDR(msg)			\
 	(((msg)->msg_controllen) >= sizeof(struct compat_cmsghdr) ?	\
-	 (struct compat_cmsghdr __user *)((msg)->msg_control) :		\
+	 (struct compat_cmsghdr __force_user *)((msg)->msg_control) :		\
 	 (struct compat_cmsghdr __user *)NULL)
 
 #define CMSG_COMPAT_OK(ucmlen, ucmsg, mhdr) \
 	((ucmlen) >= sizeof(struct compat_cmsghdr) && \
 	 (ucmlen) <= (unsigned long) \
 	 ((mhdr)->msg_controllen - \
-	  ((char *)(ucmsg) - (char *)(mhdr)->msg_control)))
+	  ((char __force_kernel *)(ucmsg) - (char *)(mhdr)->msg_control)))
 
 static inline struct compat_cmsghdr __user *cmsg_compat_nxthdr(struct msghdr *msg,
 		struct compat_cmsghdr __user *cmsg, int cmsg_len)
 {
 	char __user *ptr = (char __user *)cmsg + CMSG_COMPAT_ALIGN(cmsg_len);
-	if ((unsigned long)(ptr + 1 - (char __user *)msg->msg_control) >
+	if ((unsigned long)(ptr + 1 - (char __force_user *)msg->msg_control) >
 			msg->msg_controllen)
 		return NULL;
 	return (struct compat_cmsghdr __user *)ptr;
@@ -201,7 +201,7 @@ Efault:
 
 int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *data)
 {
-	struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
+	struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __force_user *) kmsg->msg_control;
 	struct compat_cmsghdr cmhdr;
 	struct compat_timeval ctv;
 	struct compat_timespec cts[3];
@@ -257,7 +257,7 @@ int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *dat
 
 void scm_detach_fds_compat(struct msghdr *kmsg, struct scm_cookie *scm)
 {
-	struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
+	struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __force_user *) kmsg->msg_control;
 	int fdmax = (kmsg->msg_controllen - sizeof(struct compat_cmsghdr)) / sizeof(int);
 	int fdnum = scm->fp->count;
 	struct file **fp = scm->fp->fp;
@@ -345,7 +345,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
 		return -EFAULT;
 	old_fs = get_fs();
 	set_fs(KERNEL_DS);
-	err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
+	err = sock_setsockopt(sock, level, optname, (char __force_user *)&ktime, sizeof(ktime));
 	set_fs(old_fs);
 
 	return err;
@@ -406,7 +406,7 @@ static int do_get_sock_timeout(struct socket *sock, int level, int optname,
 	len = sizeof(ktime);
 	old_fs = get_fs();
 	set_fs(KERNEL_DS);
-	err = sock_getsockopt(sock, level, optname, (char *) &ktime, &len);
+	err = sock_getsockopt(sock, level, optname, (char __force_user *) &ktime, (int __force_user *)&len);
 	set_fs(old_fs);
 
 	if (!err) {
@@ -549,7 +549,7 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
 	case MCAST_JOIN_GROUP:
 	case MCAST_LEAVE_GROUP:
 	{
-		struct compat_group_req __user *gr32 = (void *)optval;
+		struct compat_group_req __user *gr32 = (void __user *)optval;
 		struct group_req __user *kgr =
 			compat_alloc_user_space(sizeof(struct group_req));
 		u32 interface;
@@ -570,7 +570,7 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
 	case MCAST_BLOCK_SOURCE:
 	case MCAST_UNBLOCK_SOURCE:
 	{
-		struct compat_group_source_req __user *gsr32 = (void *)optval;
+		struct compat_group_source_req __user *gsr32 = (void __user *)optval;
 		struct group_source_req __user *kgsr = compat_alloc_user_space(
 			sizeof(struct group_source_req));
 		u32 interface;
@@ -591,7 +591,7 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
 	}
 	case MCAST_MSFILTER:
 	{
-		struct compat_group_filter __user *gf32 = (void *)optval;
+		struct compat_group_filter __user *gf32 = (void __user *)optval;
 		struct group_filter __user *kgf;
 		u32 interface, fmode, numsrc;
 
@@ -629,7 +629,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
 	char __user *optval, int __user *optlen,
 	int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
 {
-	struct compat_group_filter __user *gf32 = (void *)optval;
+	struct compat_group_filter __user *gf32 = (void __user *)optval;
 	struct group_filter __user *kgf;
 	int __user	*koptlen;
 	u32 interface, fmode, numsrc;
@@ -773,7 +773,7 @@ COMPAT_SYSCALL_DEFINE2(socketcall, int, call, u32 __user *, args)
 
 	if (call < SYS_SOCKET || call > SYS_SENDMMSG)
 		return -EINVAL;
-	if (copy_from_user(a, args, nas[call]))
+	if (nas[call] > sizeof a || copy_from_user(a, args, nas[call]))
 		return -EFAULT;
 	a0 = a[0];
 	a1 = a[1];
diff --git a/net/core/datagram.c b/net/core/datagram.c
index fa9dc64..73dd85a 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -357,7 +357,7 @@ int skb_kill_datagram(struct sock *sk, struct sk_buff *skb, unsigned int flags)
 	}
 
 	kfree_skb(skb);
-	atomic_inc(&sk->sk_drops);
+	atomic_inc_unchecked(&sk->sk_drops);
 	sk_mem_reclaim_partial(sk);
 
 	return err;
diff --git a/net/core/dev.c b/net/core/dev.c
index 5c925ac..098bb2d 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1766,7 +1766,7 @@ int __dev_forward_skb(struct net_device *dev, struct sk_buff *skb)
 {
 	if (skb_orphan_frags(skb, GFP_ATOMIC) ||
 	    unlikely(!is_skb_forwardable(dev, skb))) {
-		atomic_long_inc(&dev->rx_dropped);
+		atomic_long_inc_unchecked(&dev->rx_dropped);
 		kfree_skb(skb);
 		return NET_RX_DROP;
 	}
@@ -3379,7 +3379,7 @@ recursion_alert:
 drop:
 	rcu_read_unlock_bh();
 
-	atomic_long_inc(&dev->tx_dropped);
+	atomic_long_inc_unchecked(&dev->tx_dropped);
 	kfree_skb_list(skb);
 	return rc;
 out:
@@ -3731,7 +3731,7 @@ drop:
 
 	local_irq_restore(flags);
 
-	atomic_long_inc(&skb->dev->rx_dropped);
+	atomic_long_inc_unchecked(&skb->dev->rx_dropped);
 	kfree_skb(skb);
 	return NET_RX_DROP;
 }
@@ -3808,7 +3808,7 @@ int netif_rx_ni(struct sk_buff *skb)
 }
 EXPORT_SYMBOL(netif_rx_ni);
 
-static void net_tx_action(struct softirq_action *h)
+static __latent_entropy void net_tx_action(void)
 {
 	struct softnet_data *sd = this_cpu_ptr(&softnet_data);
 
@@ -4161,9 +4161,9 @@ ncls:
 	} else {
 drop:
 		if (!deliver_exact)
-			atomic_long_inc(&skb->dev->rx_dropped);
+			atomic_long_inc_unchecked(&skb->dev->rx_dropped);
 		else
-			atomic_long_inc(&skb->dev->rx_nohandler);
+			atomic_long_inc_unchecked(&skb->dev->rx_nohandler);
 		kfree_skb(skb);
 		/* Jamal, now you will not able to escape explaining
 		 * me how you were going to use this. :-)
@@ -5127,7 +5127,7 @@ out_unlock:
 	return work;
 }
 
-static void net_rx_action(struct softirq_action *h)
+static __latent_entropy void net_rx_action(void)
 {
 	struct softnet_data *sd = this_cpu_ptr(&softnet_data);
 	unsigned long time_limit = jiffies + 2;
@@ -7317,9 +7317,9 @@ struct rtnl_link_stats64 *dev_get_stats(struct net_device *dev,
 	} else {
 		netdev_stats_to_stats64(storage, &dev->stats);
 	}
-	storage->rx_dropped += atomic_long_read(&dev->rx_dropped);
-	storage->tx_dropped += atomic_long_read(&dev->tx_dropped);
-	storage->rx_nohandler += atomic_long_read(&dev->rx_nohandler);
+	storage->rx_dropped += atomic_long_read_unchecked(&dev->rx_dropped);
+	storage->tx_dropped += atomic_long_read_unchecked(&dev->tx_dropped);
+	storage->rx_nohandler += atomic_long_read_unchecked(&dev->rx_nohandler);
 	return storage;
 }
 EXPORT_SYMBOL(dev_get_stats);
@@ -7942,7 +7942,7 @@ static void __net_exit netdev_exit(struct net *net)
 	kfree(net->dev_index_head);
 }
 
-static struct pernet_operations __net_initdata netdev_net_ops = {
+static struct pernet_operations __net_initconst netdev_net_ops = {
 	.init = netdev_init,
 	.exit = netdev_exit,
 };
@@ -8042,7 +8042,7 @@ static void __net_exit default_device_exit_batch(struct list_head *net_list)
 	rtnl_unlock();
 }
 
-static struct pernet_operations __net_initdata default_device_ops = {
+static struct pernet_operations __net_initconst default_device_ops = {
 	.exit = default_device_exit,
 	.exit_batch = default_device_exit_batch,
 };
diff --git a/net/core/dev_ioctl.c b/net/core/dev_ioctl.c
index b94b1d2..da3ed7c 100644
--- a/net/core/dev_ioctl.c
+++ b/net/core/dev_ioctl.c
@@ -368,8 +368,13 @@ void dev_load(struct net *net, const char *name)
 	no_module = !dev;
 	if (no_module && capable(CAP_NET_ADMIN))
 		no_module = request_module("netdev-%s", name);
-	if (no_module && capable(CAP_SYS_MODULE))
+	if (no_module && capable(CAP_SYS_MODULE)) {
+#ifdef CONFIG_GRKERNSEC_MODHARDEN
+		___request_module(true, "grsec_modharden_netdev", "%s", name);
+#else
 		request_module("%s", name);
+#endif
+	}
 }
 EXPORT_SYMBOL(dev_load);
 
diff --git a/net/core/filter.c b/net/core/filter.c
index ca7f832..1d60a22 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -590,7 +590,11 @@ do_pass:
 
 		/* Unknown instruction. */
 		default:
-			goto err;
+			WARN(1, KERN_ALERT "Unknown sock filter code:%u jt:%u tf:%u k:%u\n",
+				       fp->code, fp->jt, fp->jf, fp->k);
+			kfree(addrs);
+			BUG();
+			return -EINVAL;
 		}
 
 		insn++;
@@ -634,7 +638,7 @@ static int check_load_and_stores(const struct sock_filter *filter, int flen)
 	u16 *masks, memvalid = 0; /* One bit per cell, 16 cells */
 	int pc, ret = 0;
 
-	BUILD_BUG_ON(BPF_MEMWORDS > 16);
+	BUILD_BUG_ON(BPF_MEMWORDS != 16);
 
 	masks = kmalloc_array(flen, sizeof(*masks), GFP_KERNEL);
 	if (!masks)
@@ -1068,7 +1072,7 @@ int bpf_prog_create(struct bpf_prog **pfp, struct sock_fprog_kern *fprog)
 	if (!fp)
 		return -ENOMEM;
 
-	memcpy(fp->insns, fprog->filter, fsize);
+	memcpy(fp->insns, (void __force_kernel *)fprog->filter, fsize);
 
 	fp->len = fprog->len;
 	/* Since unattached filters are not copied back to user
diff --git a/net/core/flow.c b/net/core/flow.c
index 3937b1b..b18d1cb 100644
--- a/net/core/flow.c
+++ b/net/core/flow.c
@@ -65,7 +65,7 @@ static void flow_cache_new_hashrnd(unsigned long arg)
 static int flow_entry_valid(struct flow_cache_entry *fle,
 				struct netns_xfrm *xfrm)
 {
-	if (atomic_read(&xfrm->flow_cache_genid) != fle->genid)
+	if (atomic_read_unchecked(&xfrm->flow_cache_genid) != fle->genid)
 		return 0;
 	if (fle->object && !fle->object->ops->check(fle->object))
 		return 0;
@@ -238,7 +238,7 @@ flow_cache_lookup(struct net *net, const struct flowi *key, u16 family, u8 dir,
 
 		if (fcp->hash_count > 2 * fc->high_watermark ||
 		    atomic_read(&net->xfrm.flow_cache_gc_count) > fc->high_watermark) {
-			atomic_inc(&net->xfrm.flow_cache_genid);
+			atomic_inc_unchecked(&net->xfrm.flow_cache_genid);
 			flo = ERR_PTR(-ENOBUFS);
 			goto ret_object;
 		}
@@ -253,7 +253,7 @@ flow_cache_lookup(struct net *net, const struct flowi *key, u16 family, u8 dir,
 			hlist_add_head(&fle->u.hlist, &fcp->hash_table[hash]);
 			fcp->hash_count++;
 		}
-	} else if (likely(fle->genid == atomic_read(&net->xfrm.flow_cache_genid))) {
+	} else if (likely(fle->genid == atomic_read_unchecked(&net->xfrm.flow_cache_genid))) {
 		flo = fle->object;
 		if (!flo)
 			goto ret_object;
@@ -274,7 +274,7 @@ nocache:
 	}
 	flo = resolver(net, key, family, dir, flo, ctx);
 	if (fle) {
-		fle->genid = atomic_read(&net->xfrm.flow_cache_genid);
+		fle->genid = atomic_read_unchecked(&net->xfrm.flow_cache_genid);
 		if (!IS_ERR(flo))
 			fle->object = flo;
 		else
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index f18ae91..f033693 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -860,7 +860,7 @@ static void neigh_probe(struct neighbour *neigh)
 		skb = skb_clone(skb, GFP_ATOMIC);
 	write_unlock(&neigh->lock);
 	neigh->ops->solicit(neigh, skb);
-	atomic_inc(&neigh->probes);
+	atomic_inc_unchecked(&neigh->probes);
 	kfree_skb(skb);
 }
 
@@ -916,7 +916,7 @@ static void neigh_timer_handler(unsigned long arg)
 			neigh_dbg(2, "neigh %p is probed\n", neigh);
 			neigh->nud_state = NUD_PROBE;
 			neigh->updated = jiffies;
-			atomic_set(&neigh->probes, 0);
+			atomic_set_unchecked(&neigh->probes, 0);
 			notify = 1;
 			next = now + NEIGH_VAR(neigh->parms, RETRANS_TIME);
 		}
@@ -926,7 +926,7 @@ static void neigh_timer_handler(unsigned long arg)
 	}
 
 	if ((neigh->nud_state & (NUD_INCOMPLETE | NUD_PROBE)) &&
-	    atomic_read(&neigh->probes) >= neigh_max_probes(neigh)) {
+	    atomic_read_unchecked(&neigh->probes) >= neigh_max_probes(neigh)) {
 		neigh->nud_state = NUD_FAILED;
 		notify = 1;
 		neigh_invalidate(neigh);
@@ -970,7 +970,7 @@ int __neigh_event_send(struct neighbour *neigh, struct sk_buff *skb)
 		    NEIGH_VAR(neigh->parms, APP_PROBES)) {
 			unsigned long next, now = jiffies;
 
-			atomic_set(&neigh->probes,
+			atomic_set_unchecked(&neigh->probes,
 				   NEIGH_VAR(neigh->parms, UCAST_PROBES));
 			neigh->nud_state     = NUD_INCOMPLETE;
 			neigh->updated = now;
@@ -1161,7 +1161,7 @@ int neigh_update(struct neighbour *neigh, const u8 *lladdr, u8 new,
 	if (new != old) {
 		neigh_del_timer(neigh);
 		if (new & NUD_PROBE)
-			atomic_set(&neigh->probes, 0);
+			atomic_set_unchecked(&neigh->probes, 0);
 		if (new & NUD_IN_TIMER)
 			neigh_add_timer(neigh, (jiffies +
 						((new & NUD_REACHABLE) ?
@@ -1249,7 +1249,7 @@ void __neigh_set_probe_once(struct neighbour *neigh)
 	if (!(neigh->nud_state & NUD_FAILED))
 		return;
 	neigh->nud_state = NUD_INCOMPLETE;
-	atomic_set(&neigh->probes, neigh_max_probes(neigh));
+	atomic_set_unchecked(&neigh->probes, neigh_max_probes(neigh));
 	neigh_add_timer(neigh,
 			jiffies + NEIGH_VAR(neigh->parms, RETRANS_TIME));
 }
@@ -2186,7 +2186,7 @@ static int neigh_fill_info(struct sk_buff *skb, struct neighbour *neigh,
 	ci.ndm_refcnt	 = atomic_read(&neigh->refcnt) - 1;
 	read_unlock_bh(&neigh->lock);
 
-	if (nla_put_u32(skb, NDA_PROBES, atomic_read(&neigh->probes)) ||
+	if (nla_put_u32(skb, NDA_PROBES, atomic_read_unchecked(&neigh->probes)) ||
 	    nla_put(skb, NDA_CACHEINFO, sizeof(ci), &ci))
 		goto nla_put_failure;
 
@@ -2870,7 +2870,7 @@ static int proc_unres_qlen(struct ctl_table *ctl, int write,
 			   void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	int size, ret;
-	struct ctl_table tmp = *ctl;
+	ctl_table_no_const tmp = *ctl;
 
 	tmp.extra1 = &zero;
 	tmp.extra2 = &unres_qlen_max;
@@ -2932,7 +2932,7 @@ static int neigh_proc_dointvec_zero_intmax(struct ctl_table *ctl, int write,
 					   void __user *buffer,
 					   size_t *lenp, loff_t *ppos)
 {
-	struct ctl_table tmp = *ctl;
+	ctl_table_no_const tmp = *ctl;
 	int ret;
 
 	tmp.extra1 = &zero;
diff --git a/net/core/net-procfs.c b/net/core/net-procfs.c
index 2bf8329..ea323e4 100644
--- a/net/core/net-procfs.c
+++ b/net/core/net-procfs.c
@@ -79,7 +79,13 @@ static void dev_seq_printf_stats(struct seq_file *seq, struct net_device *dev)
 	struct rtnl_link_stats64 temp;
 	const struct rtnl_link_stats64 *stats = dev_get_stats(dev, &temp);
 
-	seq_printf(seq, "%6s: %7llu %7llu %4llu %4llu %4llu %5llu %10llu %9llu "
+	if (gr_proc_is_restricted())
+		seq_printf(seq, "%6s: %7llu %7llu %4llu %4llu %4llu %5llu %10llu %9llu "
+		   "%8llu %7llu %4llu %4llu %4llu %5llu %7llu %10llu\n",
+		   dev->name, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL,
+		   0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL);
+	else
+		seq_printf(seq, "%6s: %7llu %7llu %4llu %4llu %4llu %5llu %10llu %9llu "
 		   "%8llu %7llu %4llu %4llu %4llu %5llu %7llu %10llu\n",
 		   dev->name, stats->rx_bytes, stats->rx_packets,
 		   stats->rx_errors,
@@ -166,7 +172,7 @@ static int softnet_seq_show(struct seq_file *seq, void *v)
 	return 0;
 }
 
-static const struct seq_operations dev_seq_ops = {
+const struct seq_operations dev_seq_ops = {
 	.start = dev_seq_start,
 	.next  = dev_seq_next,
 	.stop  = dev_seq_stop,
@@ -196,7 +202,7 @@ static const struct seq_operations softnet_seq_ops = {
 
 static int softnet_seq_open(struct inode *inode, struct file *file)
 {
-	return seq_open(file, &softnet_seq_ops);
+	return seq_open_restrict(file, &softnet_seq_ops);
 }
 
 static const struct file_operations softnet_seq_fops = {
@@ -283,8 +289,13 @@ static int ptype_seq_show(struct seq_file *seq, void *v)
 		else
 			seq_printf(seq, "%04x", ntohs(pt->type));
 
+#ifdef CONFIG_GRKERNSEC_HIDESYM
+		seq_printf(seq, " %-8s %pf\n",
+			   pt->dev ? pt->dev->name : "", NULL);
+#else
 		seq_printf(seq, " %-8s %pf\n",
 			   pt->dev ? pt->dev->name : "", pt->func);
+#endif
 	}
 
 	return 0;
@@ -347,7 +358,7 @@ static void __net_exit dev_proc_net_exit(struct net *net)
 	remove_proc_entry("dev", net->proc_net);
 }
 
-static struct pernet_operations __net_initdata dev_proc_ops = {
+static struct pernet_operations __net_initconst dev_proc_ops = {
 	.init = dev_proc_net_init,
 	.exit = dev_proc_net_exit,
 };
@@ -409,7 +420,7 @@ static void __net_exit dev_mc_net_exit(struct net *net)
 	remove_proc_entry("dev_mcast", net->proc_net);
 }
 
-static struct pernet_operations __net_initdata dev_mc_net_ops = {
+static struct pernet_operations __net_initconst dev_mc_net_ops = {
 	.init = dev_mc_net_init,
 	.exit = dev_mc_net_exit,
 };
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index 2b3f76f..66dfd6d 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -289,7 +289,7 @@ static ssize_t carrier_changes_show(struct device *dev,
 {
 	struct net_device *netdev = to_net_dev(dev);
 	return sprintf(buf, fmt_dec,
-		       atomic_read(&netdev->carrier_changes));
+		       atomic_read_unchecked(&netdev->carrier_changes));
 }
 static DEVICE_ATTR_RO(carrier_changes);
 
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 2c2eb1b..2f3b518 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -526,7 +526,7 @@ static __net_exit void net_ns_net_exit(struct net *net)
 	ns_free_inum(&net->ns);
 }
 
-static struct pernet_operations __net_initdata net_ns_ops = {
+static struct pernet_operations __net_initconst net_ns_ops = {
 	.init = net_ns_net_init,
 	.exit = net_ns_net_exit,
 };
@@ -775,7 +775,7 @@ static int __register_pernet_operations(struct list_head *list,
 	int error;
 	LIST_HEAD(net_exit_list);
 
-	list_add_tail(&ops->list, list);
+	pax_list_add_tail((struct list_head *)&ops->list, list);
 	if (ops->init || (ops->id && ops->size)) {
 		for_each_net(net) {
 			error = ops_init(ops, net);
@@ -788,7 +788,7 @@ static int __register_pernet_operations(struct list_head *list,
 
 out_undo:
 	/* If I have an error cleanup all namespaces I initialized */
-	list_del(&ops->list);
+	pax_list_del((struct list_head *)&ops->list);
 	ops_exit_list(ops, &net_exit_list);
 	ops_free_list(ops, &net_exit_list);
 	return error;
@@ -799,7 +799,7 @@ static void __unregister_pernet_operations(struct pernet_operations *ops)
 	struct net *net;
 	LIST_HEAD(net_exit_list);
 
-	list_del(&ops->list);
+	pax_list_del((struct list_head *)&ops->list);
 	for_each_net(net)
 		list_add_tail(&net->exit_list, &net_exit_list);
 	ops_exit_list(ops, &net_exit_list);
@@ -933,7 +933,7 @@ int register_pernet_device(struct pernet_operations *ops)
 	mutex_lock(&net_mutex);
 	error = register_pernet_operations(&pernet_list, ops);
 	if (!error && (first_device == &pernet_list))
-		first_device = &ops->list;
+		first_device = (struct list_head *)&ops->list;
 	mutex_unlock(&net_mutex);
 	return error;
 }
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index 94acfc8..01545c0 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -382,7 +382,7 @@ void netpoll_send_udp(struct netpoll *np, const char *msg, int len)
 	struct udphdr *udph;
 	struct iphdr *iph;
 	struct ethhdr *eth;
-	static atomic_t ip_ident;
+	static atomic_unchecked_t ip_ident;
 	struct ipv6hdr *ip6h;
 
 	WARN_ON_ONCE(!irqs_disabled());
@@ -455,7 +455,7 @@ void netpoll_send_udp(struct netpoll *np, const char *msg, int len)
 		put_unaligned(0x45, (unsigned char *)iph);
 		iph->tos      = 0;
 		put_unaligned(htons(ip_len), &(iph->tot_len));
-		iph->id       = htons(atomic_inc_return(&ip_ident));
+		iph->id       = htons(atomic_inc_return_unchecked(&ip_ident));
 		iph->frag_off = 0;
 		iph->ttl      = 64;
 		iph->protocol = IPPROTO_UDP;
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 20999aa..a96919e 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -3829,7 +3829,7 @@ static int __net_init pg_net_init(struct net *net)
 	pn->net = net;
 	INIT_LIST_HEAD(&pn->pktgen_threads);
 	pn->pktgen_exiting = false;
-	pn->proc_dir = proc_mkdir(PG_PROC_DIR, pn->net->proc_net);
+	pn->proc_dir = proc_mkdir_restrict(PG_PROC_DIR, pn->net->proc_net);
 	if (!pn->proc_dir) {
 		pr_warn("cannot create /proc/net/%s\n", PG_PROC_DIR);
 		return -ENODEV;
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 65763c2..4ee3747 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -61,7 +61,7 @@ struct rtnl_link {
 	rtnl_doit_func		doit;
 	rtnl_dumpit_func	dumpit;
 	rtnl_calcit_func 	calcit;
-};
+} __no_const;
 
 static DEFINE_MUTEX(rtnl_mutex);
 
@@ -307,10 +307,13 @@ int __rtnl_link_register(struct rtnl_link_ops *ops)
 	 * to use the ops for creating device. So do not
 	 * fill up dellink as well. That disables rtnl_dellink.
 	 */
-	if (ops->setup && !ops->dellink)
-		ops->dellink = unregister_netdevice_queue;
+	if (ops->setup && !ops->dellink) {
+		pax_open_kernel();
+		const_cast(ops->dellink) = unregister_netdevice_queue;
+		pax_close_kernel();
+	}
 
-	list_add_tail(&ops->list, &link_ops);
+	pax_list_add_tail((struct list_head *)&ops->list, &link_ops);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(__rtnl_link_register);
@@ -357,7 +360,7 @@ void __rtnl_link_unregister(struct rtnl_link_ops *ops)
 	for_each_net(net) {
 		__rtnl_kill_links(net, ops);
 	}
-	list_del(&ops->list);
+	pax_list_del((struct list_head *)&ops->list);
 }
 EXPORT_SYMBOL_GPL(__rtnl_link_unregister);
 
@@ -1243,7 +1246,7 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
 	    (dev->ifalias &&
 	     nla_put_string(skb, IFLA_IFALIAS, dev->ifalias)) ||
 	    nla_put_u32(skb, IFLA_CARRIER_CHANGES,
-			atomic_read(&dev->carrier_changes)) ||
+			atomic_read_unchecked(&dev->carrier_changes)) ||
 	    nla_put_u8(skb, IFLA_PROTO_DOWN, dev->proto_down))
 		goto nla_put_failure;
 
@@ -3496,7 +3499,7 @@ static int rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 		__rtnl_unlock();
 		rtnl = net->rtnl;
 		{
-			struct netlink_dump_control c = {
+			netlink_dump_control_no_const c = {
 				.dump		= dumpit,
 				.min_dump_alloc	= min_dump_alloc,
 			};
diff --git a/net/core/scm.c b/net/core/scm.c
index 2696aef..dbd5807 100644
--- a/net/core/scm.c
+++ b/net/core/scm.c
@@ -215,9 +215,9 @@ EXPORT_SYMBOL(__scm_send);
 int put_cmsg(struct msghdr * msg, int level, int type, int len, void *data)
 {
 	struct cmsghdr __user *cm
-		= (__force struct cmsghdr __user *)msg->msg_control;
+		= (struct cmsghdr __force_user *)msg->msg_control;
 	struct cmsghdr cmhdr;
-	int cmlen = CMSG_LEN(len);
+	size_t cmlen = CMSG_LEN(len);
 	int err;
 
 	if (MSG_CMSG_COMPAT & msg->msg_flags)
@@ -238,7 +238,7 @@ int put_cmsg(struct msghdr * msg, int level, int type, int len, void *data)
 	err = -EFAULT;
 	if (copy_to_user(cm, &cmhdr, sizeof cmhdr))
 		goto out;
-	if (copy_to_user(CMSG_DATA(cm), data, cmlen - sizeof(struct cmsghdr)))
+	if (copy_to_user((void __force_user *)CMSG_DATA((void __force_kernel *)cm), data, cmlen - sizeof(struct cmsghdr)))
 		goto out;
 	cmlen = CMSG_SPACE(len);
 	if (msg->msg_controllen < cmlen)
@@ -254,7 +254,7 @@ EXPORT_SYMBOL(put_cmsg);
 void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm)
 {
 	struct cmsghdr __user *cm
-		= (__force struct cmsghdr __user*)msg->msg_control;
+		= (struct cmsghdr __force_user *)msg->msg_control;
 
 	int fdmax = 0;
 	int fdnum = scm->fp->count;
@@ -274,7 +274,7 @@ void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm)
 	if (fdnum < fdmax)
 		fdmax = fdnum;
 
-	for (i=0, cmfptr=(__force int __user *)CMSG_DATA(cm); i<fdmax;
+	for (i=0, cmfptr=(int __force_user *)CMSG_DATA((void __force_kernel *)cm); i<fdmax;
 	     i++, cmfptr++)
 	{
 		struct socket *sock;
@@ -303,7 +303,7 @@ void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm)
 
 	if (i > 0)
 	{
-		int cmlen = CMSG_LEN(i*sizeof(int));
+		size_t cmlen = CMSG_LEN(i*sizeof(int));
 		err = put_user(SOL_SOCKET, &cm->cmsg_level);
 		if (!err)
 			err = put_user(SCM_RIGHTS, &cm->cmsg_type);
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index e561f9f..25281cc 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1046,7 +1046,8 @@ static void skb_headers_offset_update(struct sk_buff *skb, int off)
 	if (skb->ip_summed == CHECKSUM_PARTIAL)
 		skb->csum_start += off;
 	/* {transport,network,mac}_header and tail are relative to skb->head */
-	skb->transport_header += off;
+	if (skb_transport_header_was_set(skb))
+		skb->transport_header += off;
 	skb->network_header   += off;
 	if (skb_mac_header_was_set(skb))
 		skb->mac_header += off;
@@ -2173,7 +2174,7 @@ EXPORT_SYMBOL(__skb_checksum);
 __wsum skb_checksum(const struct sk_buff *skb, int offset,
 		    int len, __wsum csum)
 {
-	const struct skb_checksum_ops ops = {
+	static const struct skb_checksum_ops ops = {
 		.update  = csum_partial_ext,
 		.combine = csum_block_add_ext,
 	};
@@ -3414,12 +3415,14 @@ void __init skb_init(void)
 	skbuff_head_cache = kmem_cache_create("skbuff_head_cache",
 					      sizeof(struct sk_buff),
 					      0,
-					      SLAB_HWCACHE_ALIGN|SLAB_PANIC,
+					      SLAB_HWCACHE_ALIGN|SLAB_PANIC|
+					      SLAB_NO_SANITIZE,
 					      NULL);
 	skbuff_fclone_cache = kmem_cache_create("skbuff_fclone_cache",
 						sizeof(struct sk_buff_fclones),
 						0,
-						SLAB_HWCACHE_ALIGN|SLAB_PANIC,
+						SLAB_HWCACHE_ALIGN|SLAB_PANIC|
+						SLAB_NO_SANITIZE,
 						NULL);
 }
 
diff --git a/net/core/sock.c b/net/core/sock.c
index 7e73c26..e02877c 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -412,7 +412,7 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
 	struct sk_buff_head *list = &sk->sk_receive_queue;
 
 	if (atomic_read(&sk->sk_rmem_alloc) >= sk->sk_rcvbuf) {
-		atomic_inc(&sk->sk_drops);
+		atomic_inc_unchecked(&sk->sk_drops);
 		trace_sock_rcvqueue_full(sk, skb);
 		return -ENOMEM;
 	}
@@ -422,7 +422,7 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
 		return err;
 
 	if (!sk_rmem_schedule(sk, skb, skb->truesize)) {
-		atomic_inc(&sk->sk_drops);
+		atomic_inc_unchecked(&sk->sk_drops);
 		return -ENOBUFS;
 	}
 
@@ -455,7 +455,7 @@ int sk_receive_skb(struct sock *sk, struct sk_buff *skb, const int nested)
 	skb->dev = NULL;
 
 	if (sk_rcvqueues_full(sk, sk->sk_rcvbuf)) {
-		atomic_inc(&sk->sk_drops);
+		atomic_inc_unchecked(&sk->sk_drops);
 		goto discard_and_relse;
 	}
 	if (nested)
@@ -473,7 +473,7 @@ int sk_receive_skb(struct sock *sk, struct sk_buff *skb, const int nested)
 		mutex_release(&sk->sk_lock.dep_map, 1, _RET_IP_);
 	} else if (sk_add_backlog(sk, skb, sk->sk_rcvbuf)) {
 		bh_unlock_sock(sk);
-		atomic_inc(&sk->sk_drops);
+		atomic_inc_unchecked(&sk->sk_drops);
 		goto discard_and_relse;
 	}
 
@@ -880,19 +880,6 @@ set_rcvbuf:
 		}
 		break;
 
-	case SO_ATTACH_BPF:
-		ret = -EINVAL;
-		if (optlen == sizeof(u32)) {
-			u32 ufd;
-
-			ret = -EFAULT;
-			if (copy_from_user(&ufd, optval, sizeof(ufd)))
-				break;
-
-			ret = sk_attach_bpf(ufd, sk);
-		}
-		break;
-
 	case SO_ATTACH_REUSEPORT_CBPF:
 		ret = -EINVAL;
 		if (optlen == sizeof(struct sock_fprog)) {
@@ -906,6 +893,20 @@ set_rcvbuf:
 		}
 		break;
 
+#ifndef GRKERNSEC_BPF_HARDEN
+	case SO_ATTACH_BPF:
+		ret = -EINVAL;
+		if (optlen == sizeof(u32)) {
+			u32 ufd;
+
+			ret = -EFAULT;
+			if (copy_from_user(&ufd, optval, sizeof(ufd)))
+				break;
+
+			ret = sk_attach_bpf(ufd, sk);
+		}
+		break;
+
 	case SO_ATTACH_REUSEPORT_EBPF:
 		ret = -EINVAL;
 		if (optlen == sizeof(u32)) {
@@ -919,6 +920,8 @@ set_rcvbuf:
 		}
 		break;
 
+#endif
+
 	case SO_DETACH_FILTER:
 		ret = sk_detach_filter(sk);
 		break;
@@ -1028,12 +1031,12 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
 		struct timeval tm;
 	} v;
 
-	int lv = sizeof(int);
-	int len;
+	unsigned int lv = sizeof(int);
+	unsigned int len;
 
 	if (get_user(len, optlen))
 		return -EFAULT;
-	if (len < 0)
+	if (len > INT_MAX)
 		return -EINVAL;
 
 	memset(&v, 0, sizeof(v));
@@ -1171,11 +1174,11 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
 
 	case SO_PEERNAME:
 	{
-		char address[128];
+		char address[_K_SS_MAXSIZE];
 
 		if (sock->ops->getname(sock, (struct sockaddr *)address, &lv, 2))
 			return -ENOTCONN;
-		if (lv < len)
+		if (lv < len || sizeof address < len)
 			return -EINVAL;
 		if (copy_to_user(optval, address, len))
 			return -EFAULT;
@@ -1263,7 +1266,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
 
 	if (len > lv)
 		len = lv;
-	if (copy_to_user(optval, &v, len))
+	if (len > sizeof(v) || copy_to_user(optval, &v, len))
 		return -EFAULT;
 lenout:
 	if (put_user(len, optlen))
@@ -1543,7 +1546,7 @@ struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority)
 		newsk->sk_err	   = 0;
 		newsk->sk_priority = 0;
 		newsk->sk_incoming_cpu = raw_smp_processor_id();
-		atomic64_set(&newsk->sk_cookie, 0);
+		atomic64_set_unchecked(&newsk->sk_cookie, 0);
 		/*
 		 * Before updating sk_refcnt, we must commit prior changes to memory
 		 * (Documentation/RCU/rculist_nulls.txt for details)
@@ -2410,7 +2413,7 @@ void sock_init_data(struct socket *sock, struct sock *sk)
 	 */
 	smp_wmb();
 	atomic_set(&sk->sk_refcnt, 1);
-	atomic_set(&sk->sk_drops, 0);
+	atomic_set_unchecked(&sk->sk_drops, 0);
 }
 EXPORT_SYMBOL(sock_init_data);
 
@@ -2539,6 +2542,7 @@ void sock_enable_timestamp(struct sock *sk, int flag)
 int sock_recv_errqueue(struct sock *sk, struct msghdr *msg, int len,
 		       int level, int type)
 {
+	struct sock_extended_err ee;
 	struct sock_exterr_skb *serr;
 	struct sk_buff *skb;
 	int copied, err;
@@ -2560,7 +2564,8 @@ int sock_recv_errqueue(struct sock *sk, struct msghdr *msg, int len,
 	sock_recv_timestamp(msg, sk, skb);
 
 	serr = SKB_EXT_ERR(skb);
-	put_cmsg(msg, level, type, sizeof(serr->ee), &serr->ee);
+	ee = serr->ee;
+	put_cmsg(msg, level, type, sizeof ee, &ee);
 
 	msg->msg_flags |= MSG_ERRQUEUE;
 	err = copied;
@@ -3012,7 +3017,7 @@ static __net_exit void proto_exit_net(struct net *net)
 }
 
 
-static __net_initdata struct pernet_operations proto_net_ops = {
+static __net_initconst struct pernet_operations proto_net_ops = {
 	.init = proto_init_net,
 	.exit = proto_exit_net,
 };
diff --git a/net/core/sock_diag.c b/net/core/sock_diag.c
index a996ce8..e0d5d3d 100644
--- a/net/core/sock_diag.c
+++ b/net/core/sock_diag.c
@@ -14,7 +14,7 @@
 #include <linux/inet_diag.h>
 #include <linux/sock_diag.h>
 
-static const struct sock_diag_handler *sock_diag_handlers[AF_MAX];
+static const struct sock_diag_handler *sock_diag_handlers[AF_MAX] __read_only;
 static int (*inet_rcv_compat)(struct sk_buff *skb, struct nlmsghdr *nlh);
 static DEFINE_MUTEX(sock_diag_table_mutex);
 static struct workqueue_struct *broadcast_wq;
@@ -22,12 +22,12 @@ static struct workqueue_struct *broadcast_wq;
 static u64 sock_gen_cookie(struct sock *sk)
 {
 	while (1) {
-		u64 res = atomic64_read(&sk->sk_cookie);
+		u64 res = atomic64_read_unchecked(&sk->sk_cookie);
 
 		if (res)
 			return res;
-		res = atomic64_inc_return(&sock_net(sk)->cookie_gen);
-		atomic64_cmpxchg(&sk->sk_cookie, 0, res);
+		res = atomic64_inc_return_unchecked(&sock_net(sk)->cookie_gen);
+		atomic64_cmpxchg_unchecked(&sk->sk_cookie, 0, res);
 	}
 }
 
@@ -192,8 +192,11 @@ int sock_diag_register(const struct sock_diag_handler *hndl)
 	mutex_lock(&sock_diag_table_mutex);
 	if (sock_diag_handlers[hndl->family])
 		err = -EBUSY;
-	else
+	else {
+		pax_open_kernel();
 		sock_diag_handlers[hndl->family] = hndl;
+		pax_close_kernel();
+	}
 	mutex_unlock(&sock_diag_table_mutex);
 
 	return err;
@@ -209,7 +212,9 @@ void sock_diag_unregister(const struct sock_diag_handler *hnld)
 
 	mutex_lock(&sock_diag_table_mutex);
 	BUG_ON(sock_diag_handlers[family] != hnld);
+	pax_open_kernel();
 	sock_diag_handlers[family] = NULL;
+	pax_close_kernel();
 	mutex_unlock(&sock_diag_table_mutex);
 }
 EXPORT_SYMBOL_GPL(sock_diag_unregister);
diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
index a6beb7b..4d833b2 100644
--- a/net/core/sysctl_net_core.c
+++ b/net/core/sysctl_net_core.c
@@ -36,7 +36,7 @@ static int rps_sock_flow_sysctl(struct ctl_table *table, int write,
 {
 	unsigned int orig_size, size;
 	int ret, i;
-	struct ctl_table tmp = {
+	ctl_table_no_const tmp = {
 		.data = &size,
 		.maxlen = sizeof(size),
 		.mode = table->mode
@@ -204,7 +204,7 @@ static int set_default_qdisc(struct ctl_table *table, int write,
 			     void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	char id[IFNAMSIZ];
-	struct ctl_table tbl = {
+	ctl_table_no_const tbl = {
 		.data = id,
 		.maxlen = IFNAMSIZ,
 	};
@@ -222,7 +222,7 @@ static int set_default_qdisc(struct ctl_table *table, int write,
 static int proc_do_rss_key(struct ctl_table *table, int write,
 			   void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	struct ctl_table fake_table;
+	ctl_table_no_const fake_table;
 	char buf[NETDEV_RSS_KEY_LEN * 3];
 
 	snprintf(buf, sizeof(buf), "%*phC", NETDEV_RSS_KEY_LEN, netdev_rss_key);
@@ -286,7 +286,7 @@ static struct ctl_table net_core_table[] = {
 		.mode		= 0444,
 		.proc_handler	= proc_do_rss_key,
 	},
-#ifdef CONFIG_BPF_JIT
+#if defined(CONFIG_BPF_JIT) && !defined(CONFIG_GRKERNSEC_BPF_HARDEN)
 	{
 		.procname	= "bpf_jit_enable",
 		.data		= &bpf_jit_enable,
@@ -419,13 +419,12 @@ static struct ctl_table netns_core_table[] = {
 
 static __net_init int sysctl_core_net_init(struct net *net)
 {
-	struct ctl_table *tbl;
+	ctl_table_no_const *tbl = NULL;
 
 	net->core.sysctl_somaxconn = SOMAXCONN;
 
-	tbl = netns_core_table;
 	if (!net_eq(net, &init_net)) {
-		tbl = kmemdup(tbl, sizeof(netns_core_table), GFP_KERNEL);
+		tbl = kmemdup(netns_core_table, sizeof(netns_core_table), GFP_KERNEL);
 		if (tbl == NULL)
 			goto err_dup;
 
@@ -435,17 +434,16 @@ static __net_init int sysctl_core_net_init(struct net *net)
 		if (net->user_ns != &init_user_ns) {
 			tbl[0].procname = NULL;
 		}
-	}
-
-	net->core.sysctl_hdr = register_net_sysctl(net, "net/core", tbl);
+		net->core.sysctl_hdr = register_net_sysctl(net, "net/core", tbl);
+	} else
+		net->core.sysctl_hdr = register_net_sysctl(net, "net/core", netns_core_table);
 	if (net->core.sysctl_hdr == NULL)
 		goto err_reg;
 
 	return 0;
 
 err_reg:
-	if (tbl != netns_core_table)
-		kfree(tbl);
+	kfree(tbl);
 err_dup:
 	return -ENOMEM;
 }
@@ -460,7 +458,7 @@ static __net_exit void sysctl_core_net_exit(struct net *net)
 	kfree(tbl);
 }
 
-static __net_initdata struct pernet_operations sysctl_core_ops = {
+static __net_initconst struct pernet_operations sysctl_core_ops = {
 	.init = sysctl_core_net_init,
 	.exit = sysctl_core_net_exit,
 };
diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c
index 13d6b1a..0ac2a9b 100644
--- a/net/decnet/af_decnet.c
+++ b/net/decnet/af_decnet.c
@@ -466,6 +466,7 @@ static struct proto dn_proto = {
 	.sysctl_rmem		= sysctl_decnet_rmem,
 	.max_header		= DN_MAX_NSP_DATA_HEADER + 64,
 	.obj_size		= sizeof(struct dn_sock),
+	.slab_flags		= SLAB_USERCOPY,
 };
 
 static struct sock *dn_alloc_sock(struct net *net, struct socket *sock, gfp_t gfp, int kern)
diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c
index b2c26b0..41f803e 100644
--- a/net/decnet/dn_dev.c
+++ b/net/decnet/dn_dev.c
@@ -201,7 +201,7 @@ static struct dn_dev_sysctl_table {
 		.extra1 = &min_t3,
 		.extra2 = &max_t3
 	},
-	{0}
+	{ }
 	},
 };
 
diff --git a/net/decnet/sysctl_net_decnet.c b/net/decnet/sysctl_net_decnet.c
index 5325b54..a0d4d69 100644
--- a/net/decnet/sysctl_net_decnet.c
+++ b/net/decnet/sysctl_net_decnet.c
@@ -174,7 +174,7 @@ static int dn_node_address_handler(struct ctl_table *table, int write,
 
 	if (len > *lenp) len = *lenp;
 
-	if (copy_to_user(buffer, addr, len))
+	if (len > sizeof addr || copy_to_user(buffer, addr, len))
 		return -EFAULT;
 
 	*lenp = len;
@@ -237,7 +237,7 @@ static int dn_def_dev_handler(struct ctl_table *table, int write,
 
 	if (len > *lenp) len = *lenp;
 
-	if (copy_to_user(buffer, devname, len))
+	if (len > sizeof devname || copy_to_user(buffer, devname, len))
 		return -EFAULT;
 
 	*lenp = len;
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index c28c474..dad38e7 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -980,7 +980,7 @@ static struct packet_type dsa_pack_type __read_mostly = {
 	.func	= dsa_switch_rcv,
 };
 
-static struct notifier_block dsa_netdevice_nb __read_mostly = {
+static struct notifier_block dsa_netdevice_nb = {
 	.notifier_call	= dsa_slave_netdevice_event,
 };
 
diff --git a/net/hsr/hsr_device.c b/net/hsr/hsr_device.c
index c7d1adc..e4d688b 100644
--- a/net/hsr/hsr_device.c
+++ b/net/hsr/hsr_device.c
@@ -232,7 +232,7 @@ static netdev_features_t hsr_fix_features(struct net_device *dev,
 }
 
 
-static int hsr_dev_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t hsr_dev_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct hsr_priv *hsr = netdev_priv(dev);
 	struct hsr_port *master;
diff --git a/net/hsr/hsr_netlink.c b/net/hsr/hsr_netlink.c
index a2c7e4c..3dc9f67 100644
--- a/net/hsr/hsr_netlink.c
+++ b/net/hsr/hsr_netlink.c
@@ -102,7 +102,7 @@ nla_put_failure:
 	return -EMSGSIZE;
 }
 
-static struct rtnl_link_ops hsr_link_ops __read_mostly = {
+static struct rtnl_link_ops hsr_link_ops = {
 	.kind		= "hsr",
 	.maxtype	= IFLA_HSR_MAX,
 	.policy		= hsr_policy,
diff --git a/net/ieee802154/6lowpan/core.c b/net/ieee802154/6lowpan/core.c
index 0023c90..5cda011 100644
--- a/net/ieee802154/6lowpan/core.c
+++ b/net/ieee802154/6lowpan/core.c
@@ -182,7 +182,7 @@ static void lowpan_dellink(struct net_device *ldev, struct list_head *head)
 	dev_put(wdev);
 }
 
-static struct rtnl_link_ops lowpan_link_ops __read_mostly = {
+static struct rtnl_link_ops lowpan_link_ops = {
 	.kind		= "lowpan",
 	.priv_size	= LOWPAN_PRIV_SIZE(sizeof(struct lowpan_dev_info)),
 	.setup		= lowpan_setup,
diff --git a/net/ieee802154/6lowpan/reassembly.c b/net/ieee802154/6lowpan/reassembly.c
index 30d875d..760f4f1 100644
--- a/net/ieee802154/6lowpan/reassembly.c
+++ b/net/ieee802154/6lowpan/reassembly.c
@@ -492,14 +492,13 @@ static struct ctl_table lowpan_frags_ctl_table[] = {
 
 static int __net_init lowpan_frags_ns_sysctl_register(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table = NULL;
 	struct ctl_table_header *hdr;
 	struct netns_ieee802154_lowpan *ieee802154_lowpan =
 		net_ieee802154_lowpan(net);
 
-	table = lowpan_frags_ns_ctl_table;
 	if (!net_eq(net, &init_net)) {
-		table = kmemdup(table, sizeof(lowpan_frags_ns_ctl_table),
+		table = kmemdup(lowpan_frags_ns_ctl_table, sizeof(lowpan_frags_ns_ctl_table),
 				GFP_KERNEL);
 		if (table == NULL)
 			goto err_alloc;
@@ -514,9 +513,9 @@ static int __net_init lowpan_frags_ns_sysctl_register(struct net *net)
 		/* Don't export sysctls to unprivileged users */
 		if (net->user_ns != &init_user_ns)
 			table[0].procname = NULL;
-	}
-
-	hdr = register_net_sysctl(net, "net/ieee802154/6lowpan", table);
+		hdr = register_net_sysctl(net, "net/ieee802154/6lowpan", table);
+	} else
+		hdr = register_net_sysctl(net, "net/ieee802154/6lowpan", lowpan_frags_ns_ctl_table);
 	if (hdr == NULL)
 		goto err_reg;
 
@@ -524,8 +523,7 @@ static int __net_init lowpan_frags_ns_sysctl_register(struct net *net)
 	return 0;
 
 err_reg:
-	if (!net_eq(net, &init_net))
-		kfree(table);
+	kfree(table);
 err_alloc:
 	return -ENOMEM;
 }
diff --git a/net/ieee802154/core.c b/net/ieee802154/core.c
index c35fdfa..063ef67 100644
--- a/net/ieee802154/core.c
+++ b/net/ieee802154/core.c
@@ -110,7 +110,7 @@ struct wpan_phy *wpan_phy_idx_to_wpan_phy(int wpan_phy_idx)
 struct wpan_phy *
 wpan_phy_new(const struct cfg802154_ops *ops, size_t priv_size)
 {
-	static atomic_t wpan_phy_counter = ATOMIC_INIT(0);
+	static atomic_unchecked_t wpan_phy_counter = ATOMIC_INIT(0);
 	struct cfg802154_registered_device *rdev;
 	size_t alloc_size;
 
@@ -121,11 +121,11 @@ wpan_phy_new(const struct cfg802154_ops *ops, size_t priv_size)
 
 	rdev->ops = ops;
 
-	rdev->wpan_phy_idx = atomic_inc_return(&wpan_phy_counter);
+	rdev->wpan_phy_idx = atomic_inc_return_unchecked(&wpan_phy_counter);
 
 	if (unlikely(rdev->wpan_phy_idx < 0)) {
 		/* ugh, wrapped! */
-		atomic_dec(&wpan_phy_counter);
+		atomic_dec_unchecked(&wpan_phy_counter);
 		kfree(rdev);
 		return NULL;
 	}
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 7ad0e56..d8028ad 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1425,7 +1425,7 @@ int inet_recv_error(struct sock *sk, struct msghdr *msg, int len, int *addr_len)
 		return ip_recv_error(sk, msg, len, addr_len);
 #if IS_ENABLED(CONFIG_IPV6)
 	if (sk->sk_family == AF_INET6)
-		return pingv6_ops.ipv6_recv_error(sk, msg, len, addr_len);
+		return pingv6_ops->ipv6_recv_error(sk, msg, len, addr_len);
 #endif
 	return -EINVAL;
 }
@@ -1634,7 +1634,7 @@ static __net_exit void ipv4_mib_exit_net(struct net *net)
 	free_percpu(net->mib.tcp_statistics);
 }
 
-static __net_initdata struct pernet_operations ipv4_mib_ops = {
+static __net_initconst struct pernet_operations ipv4_mib_ops = {
 	.init = ipv4_mib_init_net,
 	.exit = ipv4_mib_exit_net,
 };
@@ -1675,7 +1675,7 @@ static __net_exit void inet_exit_net(struct net *net)
 {
 }
 
-static __net_initdata struct pernet_operations af_inet_ops = {
+static __net_initconst struct pernet_operations af_inet_ops = {
 	.init = inet_init_net,
 	.exit = inet_exit_net,
 };
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index c34c754..df0b2c8 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -332,7 +332,7 @@ static void arp_solicit(struct neighbour *neigh, struct sk_buff *skb)
 	u8 dst_ha[MAX_ADDR_LEN], *dst_hw = NULL;
 	struct net_device *dev = neigh->dev;
 	__be32 target = *(__be32 *)neigh->primary_key;
-	int probes = atomic_read(&neigh->probes);
+	int probes = atomic_read_unchecked(&neigh->probes);
 	struct in_device *in_dev;
 	struct dst_entry *dst = NULL;
 
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index e333bc8..281d54d 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -69,7 +69,8 @@
 
 static struct ipv4_devconf ipv4_devconf = {
 	.data = {
-		[IPV4_DEVCONF_ACCEPT_REDIRECTS - 1] = 1,
+		[IPV4_DEVCONF_ACCEPT_REDIRECTS - 1] = 0,
+		[IPV4_DEVCONF_RP_FILTER - 1] = 1,
 		[IPV4_DEVCONF_SEND_REDIRECTS - 1] = 1,
 		[IPV4_DEVCONF_SECURE_REDIRECTS - 1] = 1,
 		[IPV4_DEVCONF_SHARED_MEDIA - 1] = 1,
@@ -80,7 +81,8 @@ static struct ipv4_devconf ipv4_devconf = {
 
 static struct ipv4_devconf ipv4_devconf_dflt = {
 	.data = {
-		[IPV4_DEVCONF_ACCEPT_REDIRECTS - 1] = 1,
+		[IPV4_DEVCONF_ACCEPT_REDIRECTS - 1] = 0,
+		[IPV4_DEVCONF_RP_FILTER - 1] = 1,
 		[IPV4_DEVCONF_SEND_REDIRECTS - 1] = 1,
 		[IPV4_DEVCONF_SECURE_REDIRECTS - 1] = 1,
 		[IPV4_DEVCONF_SHARED_MEDIA - 1] = 1,
@@ -1605,7 +1607,7 @@ static int inet_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)
 		idx = 0;
 		head = &net->dev_index_head[h];
 		rcu_read_lock();
-		cb->seq = atomic_read(&net->ipv4.dev_addr_genid) ^
+		cb->seq = atomic_read_unchecked(&net->ipv4.dev_addr_genid) ^
 			  net->dev_base_seq;
 		hlist_for_each_entry_rcu(dev, head, index_hlist) {
 			if (idx < s_idx)
@@ -1939,7 +1941,7 @@ static int inet_netconf_dump_devconf(struct sk_buff *skb,
 		idx = 0;
 		head = &net->dev_index_head[h];
 		rcu_read_lock();
-		cb->seq = atomic_read(&net->ipv4.dev_addr_genid) ^
+		cb->seq = atomic_read_unchecked(&net->ipv4.dev_addr_genid) ^
 			  net->dev_base_seq;
 		hlist_for_each_entry_rcu(dev, head, index_hlist) {
 			if (idx < s_idx)
@@ -2180,7 +2182,7 @@ static int ipv4_doint_and_flush(struct ctl_table *ctl, int write,
 #define DEVINET_SYSCTL_FLUSHING_ENTRY(attr, name) \
 	DEVINET_SYSCTL_COMPLEX_ENTRY(attr, name, ipv4_doint_and_flush)
 
-static struct devinet_sysctl_table {
+static const struct devinet_sysctl_table {
 	struct ctl_table_header *sysctl_header;
 	struct ctl_table devinet_vars[__IPV4_DEVCONF_MAX];
 } devinet_sysctl = {
@@ -2318,7 +2320,7 @@ static __net_init int devinet_init_net(struct net *net)
 	int err;
 	struct ipv4_devconf *all, *dflt;
 #ifdef CONFIG_SYSCTL
-	struct ctl_table *tbl = ctl_forward_entry;
+	ctl_table_no_const *tbl = NULL;
 	struct ctl_table_header *forw_hdr;
 #endif
 
@@ -2336,7 +2338,7 @@ static __net_init int devinet_init_net(struct net *net)
 			goto err_alloc_dflt;
 
 #ifdef CONFIG_SYSCTL
-		tbl = kmemdup(tbl, sizeof(ctl_forward_entry), GFP_KERNEL);
+		tbl = kmemdup(ctl_forward_entry, sizeof(ctl_forward_entry), GFP_KERNEL);
 		if (!tbl)
 			goto err_alloc_ctl;
 
@@ -2356,7 +2358,10 @@ static __net_init int devinet_init_net(struct net *net)
 		goto err_reg_dflt;
 
 	err = -ENOMEM;
-	forw_hdr = register_net_sysctl(net, "net/ipv4", tbl);
+	if (!net_eq(net, &init_net))
+		forw_hdr = register_net_sysctl(net, "net/ipv4", tbl);
+	else
+		forw_hdr = register_net_sysctl(net, "net/ipv4", ctl_forward_entry);
 	if (!forw_hdr)
 		goto err_reg_ctl;
 	net->ipv4.forw_hdr = forw_hdr;
@@ -2372,8 +2377,7 @@ err_reg_ctl:
 err_reg_dflt:
 	__devinet_sysctl_unregister(all);
 err_reg_all:
-	if (tbl != ctl_forward_entry)
-		kfree(tbl);
+	kfree(tbl);
 err_alloc_ctl:
 #endif
 	if (dflt != &ipv4_devconf_dflt)
@@ -2400,7 +2404,7 @@ static __net_exit void devinet_exit_net(struct net *net)
 	kfree(net->ipv4.devconf_all);
 }
 
-static __net_initdata struct pernet_operations devinet_ops = {
+static __net_initconst struct pernet_operations devinet_ops = {
 	.init = devinet_init_net,
 	.exit = devinet_exit_net,
 };
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 63566ec..82e85abc8 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -1139,12 +1139,12 @@ static int fib_inetaddr_event(struct notifier_block *this, unsigned long event,
 #ifdef CONFIG_IP_ROUTE_MULTIPATH
 		fib_sync_up(dev, RTNH_F_DEAD);
 #endif
-		atomic_inc(&net->ipv4.dev_addr_genid);
+		atomic_inc_unchecked(&net->ipv4.dev_addr_genid);
 		rt_cache_flush(dev_net(dev));
 		break;
 	case NETDEV_DOWN:
 		fib_del_ifaddr(ifa, NULL);
-		atomic_inc(&net->ipv4.dev_addr_genid);
+		atomic_inc_unchecked(&net->ipv4.dev_addr_genid);
 		if (!ifa->ifa_dev->ifa_list) {
 			/* Last address was deleted from this interface.
 			 * Disable IP.
@@ -1184,7 +1184,7 @@ static int fib_netdev_event(struct notifier_block *this, unsigned long event, vo
 #ifdef CONFIG_IP_ROUTE_MULTIPATH
 		fib_sync_up(dev, RTNH_F_DEAD);
 #endif
-		atomic_inc(&net->ipv4.dev_addr_genid);
+		atomic_inc_unchecked(&net->ipv4.dev_addr_genid);
 		rt_cache_flush(net);
 		break;
 	case NETDEV_DOWN:
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 2b68418..fb7bee8 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -913,7 +913,7 @@ __be32 fib_info_update_nh_saddr(struct net *net, struct fib_nh *nh)
 	nh->nh_saddr = inet_select_addr(nh->nh_dev,
 					nh->nh_gw,
 					nh->nh_parent->fib_scope);
-	nh->nh_saddr_genid = atomic_read(&net->ipv4.dev_addr_genid);
+	nh->nh_saddr_genid = atomic_read_unchecked(&net->ipv4.dev_addr_genid);
 
 	return nh->nh_saddr;
 }
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 6333489..be244b4 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -1228,7 +1228,7 @@ fail:
 	return err;
 }
 
-static struct pernet_operations __net_initdata icmp_sk_ops = {
+static struct pernet_operations __net_initconst icmp_sk_ops = {
        .init = icmp_sk_init,
        .exit = icmp_sk_exit,
 };
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index bc5196e..dbe0be2 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -662,8 +662,8 @@ struct sock *inet_csk_clone_lock(const struct sock *sk,
 		newsk->sk_write_space = sk_stream_write_space;
 
 		newsk->sk_mark = inet_rsk(req)->ir_mark;
-		atomic64_set(&newsk->sk_cookie,
-			     atomic64_read(&inet_rsk(req)->ir_cookie));
+		atomic64_set_unchecked(&newsk->sk_cookie,
+			     atomic64_read_unchecked(&inet_rsk(req)->ir_cookie));
 
 		newicsk->icsk_retransmits = 0;
 		newicsk->icsk_backoff	  = 0;
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index 5fdb02f..dc6f124 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -986,7 +986,7 @@ static int inet_diag_rcv_msg_compat(struct sk_buff *skb, struct nlmsghdr *nlh)
 				return -EINVAL;
 		}
 		{
-			struct netlink_dump_control c = {
+			static struct netlink_dump_control c = {
 				.dump = inet_diag_dump_compat,
 			};
 			return netlink_dump_start(net->diag_nlsk, skb, nlh, &c);
@@ -1017,7 +1017,7 @@ static int inet_diag_handler_cmd(struct sk_buff *skb, struct nlmsghdr *h)
 				return -EINVAL;
 		}
 		{
-			struct netlink_dump_control c = {
+			static struct netlink_dump_control c = {
 				.dump = inet_diag_dump,
 			};
 			return netlink_dump_start(net->diag_nlsk, skb, h, &c);
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index 0d9e9d7..9679cf4 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -19,6 +19,7 @@
 #include <linux/slab.h>
 #include <linux/wait.h>
 #include <linux/vmalloc.h>
+#include <linux/security.h>
 
 #include <net/addrconf.h>
 #include <net/inet_connection_sock.h>
@@ -56,6 +57,8 @@ u32 sk_ehashfn(const struct sock *sk)
 			    sk->sk_daddr, sk->sk_dport);
 }
 
+extern void gr_update_task_in_ip_table(const struct inet_sock *inet);
+
 /*
  * Allocate and initialize a new local port bind bucket.
  * The bindhash mutex for snum's hash chain must be held here.
@@ -665,6 +668,9 @@ ok:
 	spin_unlock(&head->lock);
 	if (tw)
 		inet_twsk_deschedule_put(tw);
+
+	gr_update_task_in_ip_table(inet_sk(sk));
+
 	local_bh_enable();
 	return 0;
 }
diff --git a/net/ipv4/inet_timewait_sock.c b/net/ipv4/inet_timewait_sock.c
index c67f9bd..7a108d1 100644
--- a/net/ipv4/inet_timewait_sock.c
+++ b/net/ipv4/inet_timewait_sock.c
@@ -186,7 +186,7 @@ struct inet_timewait_sock *inet_twsk_alloc(const struct sock *sk,
 		tw->tw_ipv6only	    = 0;
 		tw->tw_transparent  = inet->transparent;
 		tw->tw_prot	    = sk->sk_prot_creator;
-		atomic64_set(&tw->tw_cookie, atomic64_read(&sk->sk_cookie));
+		atomic64_set_unchecked(&tw->tw_cookie, atomic64_read_unchecked(&sk->sk_cookie));
 		twsk_net_set(tw, sock_net(sk));
 		setup_timer(&tw->tw_timer, tw_timer_handler, (unsigned long)tw);
 		/*
diff --git a/net/ipv4/inetpeer.c b/net/ipv4/inetpeer.c
index 86fa458..5f601b9 100644
--- a/net/ipv4/inetpeer.c
+++ b/net/ipv4/inetpeer.c
@@ -445,7 +445,7 @@ relookup:
 	if (p) {
 		p->daddr = *daddr;
 		atomic_set(&p->refcnt, 1);
-		atomic_set(&p->rid, 0);
+		atomic_set_unchecked(&p->rid, 0);
 		p->metrics[RTAX_LOCK-1] = INETPEER_METRICS_NEW;
 		p->rate_tokens = 0;
 		/* 60*HZ is arbitrary, but chosen enough high so that the first
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index efbd47d..cb8f074 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -282,7 +282,7 @@ static int ip_frag_too_far(struct ipq *qp)
 		return 0;
 
 	start = qp->rid;
-	end = atomic_inc_return(&peer->rid);
+	end = atomic_inc_return_unchecked(&peer->rid);
 	qp->rid = end;
 
 	rc = qp->q.fragments && (end - start) > max;
@@ -773,12 +773,11 @@ static struct ctl_table ip4_frags_ctl_table[] = {
 
 static int __net_init ip4_frags_ns_ctl_register(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table = NULL;
 	struct ctl_table_header *hdr;
 
-	table = ip4_frags_ns_ctl_table;
 	if (!net_eq(net, &init_net)) {
-		table = kmemdup(table, sizeof(ip4_frags_ns_ctl_table), GFP_KERNEL);
+		table = kmemdup(ip4_frags_ns_ctl_table, sizeof(ip4_frags_ns_ctl_table), GFP_KERNEL);
 		if (!table)
 			goto err_alloc;
 
@@ -789,9 +788,10 @@ static int __net_init ip4_frags_ns_ctl_register(struct net *net)
 		table[1].extra2 = &net->ipv4.frags.high_thresh;
 		table[2].data = &net->ipv4.frags.timeout;
 		table[3].data = &net->ipv4.frags.max_dist;
-	}
-
-	hdr = register_net_sysctl(net, "net/ipv4", table);
+		hdr = register_net_sysctl(net, "net/ipv4", table);
+	} else
+		hdr = register_net_sysctl(net, "net/ipv4", ip4_frags_ns_ctl_table);
+ 
 	if (!hdr)
 		goto err_reg;
 
@@ -799,8 +799,7 @@ static int __net_init ip4_frags_ns_ctl_register(struct net *net)
 	return 0;
 
 err_reg:
-	if (!net_eq(net, &init_net))
-		kfree(table);
+	kfree(table);
 err_alloc:
 	return -ENOMEM;
 }
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 4cc8421..ba5f709 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -116,7 +116,7 @@ static bool log_ecn_error = true;
 module_param(log_ecn_error, bool, 0644);
 MODULE_PARM_DESC(log_ecn_error, "Log packets received with corrupted ECN");
 
-static struct rtnl_link_ops ipgre_link_ops __read_mostly;
+static struct rtnl_link_ops ipgre_link_ops;
 static int ipgre_tunnel_init(struct net_device *dev);
 
 static int ipgre_net_id __read_mostly;
@@ -1231,7 +1231,7 @@ static const struct nla_policy ipgre_policy[IFLA_GRE_MAX + 1] = {
 	[IFLA_GRE_COLLECT_METADATA]	= { .type = NLA_FLAG },
 };
 
-static struct rtnl_link_ops ipgre_link_ops __read_mostly = {
+static struct rtnl_link_ops ipgre_link_ops = {
 	.kind		= "gre",
 	.maxtype	= IFLA_GRE_MAX,
 	.policy		= ipgre_policy,
@@ -1246,7 +1246,7 @@ static struct rtnl_link_ops ipgre_link_ops __read_mostly = {
 	.get_link_net	= ip_tunnel_get_link_net,
 };
 
-static struct rtnl_link_ops ipgre_tap_ops __read_mostly = {
+static struct rtnl_link_ops ipgre_tap_ops = {
 	.kind		= "gretap",
 	.maxtype	= IFLA_GRE_MAX,
 	.policy		= ipgre_policy,
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index e3d7827..e59d2a7 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -148,6 +148,10 @@
 #include <linux/netlink.h>
 #include <net/dst_metadata.h>
 
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+extern int grsec_enable_blackhole;
+#endif
+
 /*
  *	Process Router Attention IP option (RFC 2113)
  */
@@ -223,6 +227,9 @@ static int ip_local_deliver_finish(struct net *net, struct sock *sk, struct sk_b
 			if (!raw) {
 				if (xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb)) {
 					IP_INC_STATS_BH(net, IPSTATS_MIB_INUNKNOWNPROTOS);
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+					if (!grsec_enable_blackhole || (skb->dev->flags & IFF_LOOPBACK))
+#endif
 					icmp_send(skb, ICMP_DEST_UNREACH,
 						  ICMP_PROT_UNREACH, 0);
 				}
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index 035ad64..a2f9d47 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -1311,7 +1311,8 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname,
 		len = min_t(unsigned int, len, opt->optlen);
 		if (put_user(len, optlen))
 			return -EFAULT;
-		if (copy_to_user(optval, opt->__data, len))
+		if ((len > (sizeof(optbuf) - sizeof(struct ip_options))) ||
+		    copy_to_user(optval, opt->__data, len))
 			return -EFAULT;
 		return 0;
 	}
@@ -1447,7 +1448,7 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname,
 		if (sk->sk_type != SOCK_STREAM)
 			return -ENOPROTOOPT;
 
-		msg.msg_control = (__force void *) optval;
+		msg.msg_control = (__force_kernel void *) optval;
 		msg.msg_controllen = len;
 		msg.msg_flags = flags;
 
diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
index a917903..b0bdff6 100644
--- a/net/ipv4/ip_vti.c
+++ b/net/ipv4/ip_vti.c
@@ -44,7 +44,7 @@
 #include <net/net_namespace.h>
 #include <net/netns/generic.h>
 
-static struct rtnl_link_ops vti_link_ops __read_mostly;
+static struct rtnl_link_ops vti_link_ops;
 
 static int vti_net_id __read_mostly;
 static int vti_tunnel_init(struct net_device *dev);
@@ -542,7 +542,7 @@ static const struct nla_policy vti_policy[IFLA_VTI_MAX + 1] = {
 	[IFLA_VTI_REMOTE]	= { .len = FIELD_SIZEOF(struct iphdr, daddr) },
 };
 
-static struct rtnl_link_ops vti_link_ops __read_mostly = {
+static struct rtnl_link_ops vti_link_ops = {
 	.kind		= "vti",
 	.maxtype	= IFLA_VTI_MAX,
 	.policy		= vti_policy,
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index 2ed9dd2..0682cfe 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -332,7 +332,7 @@ static int __init ic_devinet_ioctl(unsigned int cmd, struct ifreq *arg)
 
 	mm_segment_t oldfs = get_fs();
 	set_fs(get_ds());
-	res = devinet_ioctl(&init_net, cmd, (struct ifreq __user *) arg);
+	res = devinet_ioctl(&init_net, cmd, (struct ifreq __force_user *) arg);
 	set_fs(oldfs);
 	return res;
 }
@@ -343,7 +343,7 @@ static int __init ic_dev_ioctl(unsigned int cmd, struct ifreq *arg)
 
 	mm_segment_t oldfs = get_fs();
 	set_fs(get_ds());
-	res = dev_ioctl(&init_net, cmd, (struct ifreq __user *) arg);
+	res = dev_ioctl(&init_net, cmd, (struct ifreq __force_user *) arg);
 	set_fs(oldfs);
 	return res;
 }
@@ -354,7 +354,7 @@ static int __init ic_route_ioctl(unsigned int cmd, struct rtentry *arg)
 
 	mm_segment_t oldfs = get_fs();
 	set_fs(get_ds());
-	res = ip_rt_ioctl(&init_net, cmd, (void __user *) arg);
+	res = ip_rt_ioctl(&init_net, cmd, (void __force_user *) arg);
 	set_fs(oldfs);
 	return res;
 }
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index ec51d02..4e90ba9 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -123,7 +123,7 @@ MODULE_PARM_DESC(log_ecn_error, "Log packets received with corrupted ECN");
 static int ipip_net_id __read_mostly;
 
 static int ipip_tunnel_init(struct net_device *dev);
-static struct rtnl_link_ops ipip_link_ops __read_mostly;
+static struct rtnl_link_ops ipip_link_ops;
 
 static int ipip_err(struct sk_buff *skb, u32 info)
 {
@@ -484,7 +484,7 @@ static const struct nla_policy ipip_policy[IFLA_IPTUN_MAX + 1] = {
 	[IFLA_IPTUN_ENCAP_DPORT]	= { .type = NLA_U16 },
 };
 
-static struct rtnl_link_ops ipip_link_ops __read_mostly = {
+static struct rtnl_link_ops ipip_link_ops = {
 	.kind		= "ipip",
 	.maxtype	= IFLA_IPTUN_MAX,
 	.policy		= ipip_policy,
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index 85d60c6..a109f11 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -897,14 +897,14 @@ static int compat_table_info(const struct xt_table_info *info,
 #endif
 
 static int get_info(struct net *net, void __user *user,
-		    const int *len, int compat)
+		    int len, int compat)
 {
 	char name[XT_TABLE_MAXNAMELEN];
 	struct xt_table *t;
 	int ret;
 
-	if (*len != sizeof(struct arpt_getinfo)) {
-		duprintf("length %u != %Zu\n", *len,
+	if (len != sizeof(struct arpt_getinfo)) {
+		duprintf("length %u != %Zu\n", len,
 			 sizeof(struct arpt_getinfo));
 		return -EINVAL;
 	}
@@ -941,7 +941,7 @@ static int get_info(struct net *net, void __user *user,
 		info.size = private->size;
 		strcpy(info.name, name);
 
-		if (copy_to_user(user, &info, *len) != 0)
+		if (copy_to_user(user, &info, len) != 0)
 			ret = -EFAULT;
 		else
 			ret = 0;
@@ -1589,7 +1589,7 @@ static int compat_do_arpt_get_ctl(struct sock *sk, int cmd, void __user *user,
 
 	switch (cmd) {
 	case ARPT_SO_GET_INFO:
-		ret = get_info(sock_net(sk), user, len, 1);
+		ret = get_info(sock_net(sk), user, *len, 1);
 		break;
 	case ARPT_SO_GET_ENTRIES:
 		ret = compat_get_entries(sock_net(sk), user, len);
@@ -1634,7 +1634,7 @@ static int do_arpt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len
 
 	switch (cmd) {
 	case ARPT_SO_GET_INFO:
-		ret = get_info(sock_net(sk), user, len, 0);
+		ret = get_info(sock_net(sk), user, *len, 0);
 		break;
 
 	case ARPT_SO_GET_ENTRIES:
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index 0984ea3..d1125b0 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -1082,14 +1082,14 @@ static int compat_table_info(const struct xt_table_info *info,
 #endif
 
 static int get_info(struct net *net, void __user *user,
-		    const int *len, int compat)
+		    int len, int compat)
 {
 	char name[XT_TABLE_MAXNAMELEN];
 	struct xt_table *t;
 	int ret;
 
-	if (*len != sizeof(struct ipt_getinfo)) {
-		duprintf("length %u != %zu\n", *len,
+	if (len != sizeof(struct ipt_getinfo)) {
+		duprintf("length %u != %zu\n", len,
 			 sizeof(struct ipt_getinfo));
 		return -EINVAL;
 	}
@@ -1126,7 +1126,7 @@ static int get_info(struct net *net, void __user *user,
 		info.size = private->size;
 		strcpy(info.name, name);
 
-		if (copy_to_user(user, &info, *len) != 0)
+		if (copy_to_user(user, &info, len) != 0)
 			ret = -EFAULT;
 		else
 			ret = 0;
@@ -1829,7 +1829,7 @@ compat_do_ipt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
 
 	switch (cmd) {
 	case IPT_SO_GET_INFO:
-		ret = get_info(sock_net(sk), user, len, 1);
+		ret = get_info(sock_net(sk), user, *len, 1);
 		break;
 	case IPT_SO_GET_ENTRIES:
 		ret = compat_get_entries(sock_net(sk), user, len);
@@ -1876,7 +1876,7 @@ do_ipt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
 
 	switch (cmd) {
 	case IPT_SO_GET_INFO:
-		ret = get_info(sock_net(sk), user, len, 0);
+		ret = get_info(sock_net(sk), user, *len, 0);
 		break;
 
 	case IPT_SO_GET_ENTRIES:
diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
index 4a9e6db..06174e1 100644
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@ -730,7 +730,7 @@ static int clusterip_net_init(struct net *net)
 	spin_lock_init(&cn->lock);
 
 #ifdef CONFIG_PROC_FS
-	cn->procdir = proc_mkdir("ipt_CLUSTERIP", net->proc_net);
+	cn->procdir = proc_mkdir_restrict("ipt_CLUSTERIP", net->proc_net);
 	if (!cn->procdir) {
 		pr_err("Unable to proc dir entry\n");
 		return -ENOMEM;
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index cf9700b..9a5ded4 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -59,7 +59,7 @@ struct ping_table {
 };
 
 static struct ping_table ping_table;
-struct pingv6_ops pingv6_ops;
+struct pingv6_ops *pingv6_ops;
 EXPORT_SYMBOL_GPL(pingv6_ops);
 
 static u16 ping_port_rover;
@@ -361,7 +361,7 @@ static int ping_check_bind_addr(struct sock *sk, struct inet_sock *isk,
 				return -ENODEV;
 			}
 		}
-		has_addr = pingv6_ops.ipv6_chk_addr(net, &addr->sin6_addr, dev,
+		has_addr = pingv6_ops->ipv6_chk_addr(net, &addr->sin6_addr, dev,
 						    scoped);
 		rcu_read_unlock();
 
@@ -570,7 +570,7 @@ void ping_err(struct sk_buff *skb, int offset, u32 info)
 		}
 #if IS_ENABLED(CONFIG_IPV6)
 	} else if (skb->protocol == htons(ETH_P_IPV6)) {
-		harderr = pingv6_ops.icmpv6_err_convert(type, code, &err);
+		harderr = pingv6_ops->icmpv6_err_convert(type, code, &err);
 #endif
 	}
 
@@ -588,7 +588,7 @@ void ping_err(struct sk_buff *skb, int offset, u32 info)
 				      info, (u8 *)icmph);
 #if IS_ENABLED(CONFIG_IPV6)
 		} else if (family == AF_INET6) {
-			pingv6_ops.ipv6_icmp_error(sk, skb, err, 0,
+			pingv6_ops->ipv6_icmp_error(sk, skb, err, 0,
 						   info, (u8 *)icmph);
 #endif
 		}
@@ -923,10 +923,10 @@ int ping_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int noblock,
 		}
 
 		if (inet6_sk(sk)->rxopt.all)
-			pingv6_ops.ip6_datagram_recv_common_ctl(sk, msg, skb);
+			pingv6_ops->ip6_datagram_recv_common_ctl(sk, msg, skb);
 		if (skb->protocol == htons(ETH_P_IPV6) &&
 		    inet6_sk(sk)->rxopt.all)
-			pingv6_ops.ip6_datagram_recv_specific_ctl(sk, msg, skb);
+			pingv6_ops->ip6_datagram_recv_specific_ctl(sk, msg, skb);
 		else if (skb->protocol == htons(ETH_P_IP) && isk->cmsg_flags)
 			ip_cmsg_recv(msg, skb);
 #endif
@@ -1123,7 +1123,7 @@ static void ping_v4_format_sock(struct sock *sp, struct seq_file *f,
 		from_kuid_munged(seq_user_ns(f), sock_i_uid(sp)),
 		0, sock_i_ino(sp),
 		atomic_read(&sp->sk_refcnt), sp,
-		atomic_read(&sp->sk_drops));
+		atomic_read_unchecked(&sp->sk_drops));
 }
 
 static int ping_v4_seq_show(struct seq_file *seq, void *v)
diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c
index 9f665b6..5900fae 100644
--- a/net/ipv4/proc.c
+++ b/net/ipv4/proc.c
@@ -333,7 +333,7 @@ static void icmpmsg_put(struct seq_file *seq)
 
 	count = 0;
 	for (i = 0; i < ICMPMSG_MIB_MAX; i++) {
-		val = atomic_long_read(&net->mib.icmpmsg_statistics->mibs[i]);
+		val = atomic_long_read_unchecked(&net->mib.icmpmsg_statistics->mibs[i]);
 		if (val) {
 			type[count] = i;
 			vals[count++] = val;
@@ -352,7 +352,7 @@ static void icmp_put(struct seq_file *seq)
 {
 	int i;
 	struct net *net = seq->private;
-	atomic_long_t *ptr = net->mib.icmpmsg_statistics->mibs;
+	atomic_long_unchecked_t *ptr = net->mib.icmpmsg_statistics->mibs;
 
 	seq_puts(seq, "\nIcmp: InMsgs InErrors InCsumErrors");
 	for (i = 0; icmpmibmap[i].name != NULL; i++)
@@ -366,13 +366,13 @@ static void icmp_put(struct seq_file *seq)
 		snmp_fold_field(net->mib.icmp_statistics, ICMP_MIB_CSUMERRORS));
 	for (i = 0; icmpmibmap[i].name != NULL; i++)
 		seq_printf(seq, " %lu",
-			   atomic_long_read(ptr + icmpmibmap[i].index));
+			   atomic_long_read_unchecked(ptr + icmpmibmap[i].index));
 	seq_printf(seq, " %lu %lu",
 		snmp_fold_field(net->mib.icmp_statistics, ICMP_MIB_OUTMSGS),
 		snmp_fold_field(net->mib.icmp_statistics, ICMP_MIB_OUTERRORS));
 	for (i = 0; icmpmibmap[i].name != NULL; i++)
 		seq_printf(seq, " %lu",
-			   atomic_long_read(ptr + (icmpmibmap[i].index | 0x100)));
+			   atomic_long_read_unchecked(ptr + (icmpmibmap[i].index | 0x100)));
 }
 
 /*
@@ -532,7 +532,7 @@ static __net_exit void ip_proc_exit_net(struct net *net)
 	remove_proc_entry("sockstat", net->proc_net);
 }
 
-static __net_initdata struct pernet_operations ip_proc_ops = {
+static __net_initconst struct pernet_operations ip_proc_ops = {
 	.init = ip_proc_init_net,
 	.exit = ip_proc_exit_net,
 };
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 8d22de7..af2d996 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -325,7 +325,7 @@ static int raw_rcv_skb(struct sock *sk, struct sk_buff *skb)
 int raw_rcv(struct sock *sk, struct sk_buff *skb)
 {
 	if (!xfrm4_policy_check(sk, XFRM_POLICY_IN, skb)) {
-		atomic_inc(&sk->sk_drops);
+		atomic_inc_unchecked(&sk->sk_drops);
 		kfree_skb(skb);
 		return NET_RX_DROP;
 	}
@@ -785,16 +785,20 @@ static int raw_init(struct sock *sk)
 
 static int raw_seticmpfilter(struct sock *sk, char __user *optval, int optlen)
 {
+	struct icmp_filter filter;
+
 	if (optlen > sizeof(struct icmp_filter))
 		optlen = sizeof(struct icmp_filter);
-	if (copy_from_user(&raw_sk(sk)->filter, optval, optlen))
+	if (copy_from_user(&filter, optval, optlen))
 		return -EFAULT;
+	raw_sk(sk)->filter = filter;
 	return 0;
 }
 
 static int raw_geticmpfilter(struct sock *sk, char __user *optval, int __user *optlen)
 {
 	int len, ret = -EFAULT;
+	struct icmp_filter filter;
 
 	if (get_user(len, optlen))
 		goto out;
@@ -804,8 +808,8 @@ static int raw_geticmpfilter(struct sock *sk, char __user *optval, int __user *o
 	if (len > sizeof(struct icmp_filter))
 		len = sizeof(struct icmp_filter);
 	ret = -EFAULT;
-	if (put_user(len, optlen) ||
-	    copy_to_user(optval, &raw_sk(sk)->filter, len))
+	filter = raw_sk(sk)->filter;
+	if (put_user(len, optlen) || len > sizeof filter || copy_to_user(optval, &filter, len))
 		goto out;
 	ret = 0;
 out:	return ret;
@@ -1034,7 +1038,7 @@ static void raw_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
 		0, 0L, 0,
 		from_kuid_munged(seq_user_ns(seq), sock_i_uid(sp)),
 		0, sock_i_ino(sp),
-		atomic_read(&sp->sk_refcnt), sp, atomic_read(&sp->sk_drops));
+		atomic_read(&sp->sk_refcnt), sp, atomic_read_unchecked(&sp->sk_drops));
 }
 
 static int raw_seq_show(struct seq_file *seq, void *v)
@@ -1097,7 +1101,7 @@ static __net_exit void raw_exit_net(struct net *net)
 	remove_proc_entry("raw", net->proc_net);
 }
 
-static __net_initdata struct pernet_operations raw_net_ops = {
+static __net_initconst struct pernet_operations raw_net_ops = {
 	.init = raw_init_net,
 	.exit = raw_exit_net,
 };
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 60398a9..e7e6456 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -232,7 +232,7 @@ static const struct seq_operations rt_cache_seq_ops = {
 
 static int rt_cache_seq_open(struct inode *inode, struct file *file)
 {
-	return seq_open(file, &rt_cache_seq_ops);
+	return seq_open_restrict(file, &rt_cache_seq_ops);
 }
 
 static const struct file_operations rt_cache_seq_fops = {
@@ -323,7 +323,7 @@ static const struct seq_operations rt_cpu_seq_ops = {
 
 static int rt_cpu_seq_open(struct inode *inode, struct file *file)
 {
-	return seq_open(file, &rt_cpu_seq_ops);
+	return seq_open_restrict(file, &rt_cpu_seq_ops);
 }
 
 static const struct file_operations rt_cpu_seq_fops = {
@@ -361,7 +361,7 @@ static int rt_acct_proc_show(struct seq_file *m, void *v)
 
 static int rt_acct_proc_open(struct inode *inode, struct file *file)
 {
-	return single_open(file, rt_acct_proc_show, NULL);
+	return single_open_restrict(file, rt_acct_proc_show, NULL);
 }
 
 static const struct file_operations rt_acct_proc_fops = {
@@ -413,7 +413,7 @@ static void __net_exit ip_rt_do_proc_exit(struct net *net)
 #endif
 }
 
-static struct pernet_operations ip_rt_proc_ops __net_initdata =  {
+static struct pernet_operations ip_rt_proc_ops __net_initconst =  {
 	.init = ip_rt_do_proc_init,
 	.exit = ip_rt_do_proc_exit,
 };
@@ -463,7 +463,7 @@ static struct neighbour *ipv4_neigh_lookup(const struct dst_entry *dst,
 
 #define IP_IDENTS_SZ 2048u
 
-static atomic_t *ip_idents __read_mostly;
+static atomic_unchecked_t ip_idents[IP_IDENTS_SZ] __read_mostly;
 static u32 *ip_tstamps __read_mostly;
 
 /* In order to protect privacy, we add a perturbation to identifiers
@@ -473,7 +473,7 @@ static u32 *ip_tstamps __read_mostly;
 u32 ip_idents_reserve(u32 hash, int segs)
 {
 	u32 *p_tstamp = ip_tstamps + hash % IP_IDENTS_SZ;
-	atomic_t *p_id = ip_idents + hash % IP_IDENTS_SZ;
+	atomic_unchecked_t *p_id = ip_idents + hash % IP_IDENTS_SZ;
 	u32 old = ACCESS_ONCE(*p_tstamp);
 	u32 now = (u32)jiffies;
 	u32 delta = 0;
@@ -481,7 +481,7 @@ u32 ip_idents_reserve(u32 hash, int segs)
 	if (old != now && cmpxchg(p_tstamp, old, now) == old)
 		delta = prandom_u32_max(now - old);
 
-	return atomic_add_return(segs + delta, p_id) - segs;
+	return atomic_add_return_unchecked(segs + delta, p_id) - segs;
 }
 EXPORT_SYMBOL(ip_idents_reserve);
 
@@ -2768,34 +2768,34 @@ static struct ctl_table ipv4_route_flush_table[] = {
 		.maxlen		= sizeof(int),
 		.mode		= 0200,
 		.proc_handler	= ipv4_sysctl_rtcache_flush,
+		.extra1		= &init_net,
 	},
 	{ },
 };
 
 static __net_init int sysctl_route_net_init(struct net *net)
 {
-	struct ctl_table *tbl;
+	ctl_table_no_const *tbl = NULL;
 
-	tbl = ipv4_route_flush_table;
 	if (!net_eq(net, &init_net)) {
-		tbl = kmemdup(tbl, sizeof(ipv4_route_flush_table), GFP_KERNEL);
+		tbl = kmemdup(ipv4_route_flush_table, sizeof(ipv4_route_flush_table), GFP_KERNEL);
 		if (!tbl)
 			goto err_dup;
 
 		/* Don't export sysctls to unprivileged users */
 		if (net->user_ns != &init_user_ns)
 			tbl[0].procname = NULL;
-	}
-	tbl[0].extra1 = net;
+		tbl[0].extra1 = net;
+		net->ipv4.route_hdr = register_net_sysctl(net, "net/ipv4/route", tbl);
+	} else
+		net->ipv4.route_hdr = register_net_sysctl(net, "net/ipv4/route", ipv4_route_flush_table);
 
-	net->ipv4.route_hdr = register_net_sysctl(net, "net/ipv4/route", tbl);
 	if (!net->ipv4.route_hdr)
 		goto err_reg;
 	return 0;
 
 err_reg:
-	if (tbl != ipv4_route_flush_table)
-		kfree(tbl);
+	kfree(tbl);
 err_dup:
 	return -ENOMEM;
 }
@@ -2810,7 +2810,7 @@ static __net_exit void sysctl_route_net_exit(struct net *net)
 	kfree(tbl);
 }
 
-static __net_initdata struct pernet_operations sysctl_route_ops = {
+static __net_initconst struct pernet_operations sysctl_route_ops = {
 	.init = sysctl_route_net_init,
 	.exit = sysctl_route_net_exit,
 };
@@ -2818,14 +2818,14 @@ static __net_initdata struct pernet_operations sysctl_route_ops = {
 
 static __net_init int rt_genid_init(struct net *net)
 {
-	atomic_set(&net->ipv4.rt_genid, 0);
-	atomic_set(&net->fnhe_genid, 0);
+	atomic_set_unchecked(&net->ipv4.rt_genid, 0);
+	atomic_set_unchecked(&net->fnhe_genid, 0);
 	get_random_bytes(&net->ipv4.dev_addr_genid,
 			 sizeof(net->ipv4.dev_addr_genid));
 	return 0;
 }
 
-static __net_initdata struct pernet_operations rt_genid_ops = {
+static __net_initconst struct pernet_operations rt_genid_ops = {
 	.init = rt_genid_init,
 };
 
@@ -2849,7 +2849,7 @@ static void __net_exit ipv4_inetpeer_exit(struct net *net)
 	kfree(bp);
 }
 
-static __net_initdata struct pernet_operations ipv4_inetpeer_ops = {
+static __net_initconst struct pernet_operations ipv4_inetpeer_ops = {
 	.init	=	ipv4_inetpeer_init,
 	.exit	=	ipv4_inetpeer_exit,
 };
@@ -2863,11 +2863,7 @@ int __init ip_rt_init(void)
 	int rc = 0;
 	int cpu;
 
-	ip_idents = kmalloc(IP_IDENTS_SZ * sizeof(*ip_idents), GFP_KERNEL);
-	if (!ip_idents)
-		panic("IP: failed to allocate ip_idents\n");
-
-	prandom_bytes(ip_idents, IP_IDENTS_SZ * sizeof(*ip_idents));
+	prandom_bytes(ip_idents, sizeof(ip_idents));
 
 	ip_tstamps = kcalloc(IP_IDENTS_SZ, sizeof(*ip_tstamps), GFP_KERNEL);
 	if (!ip_tstamps)
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 03112a3..8890b4a 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -66,7 +66,7 @@ static int ipv4_local_port_range(struct ctl_table *table, int write,
 		container_of(table->data, struct net, ipv4.ip_local_ports.range);
 	int ret;
 	int range[2];
-	struct ctl_table tmp = {
+	ctl_table_no_const tmp = {
 		.data = &range,
 		.maxlen = sizeof(range),
 		.mode = table->mode,
@@ -124,7 +124,7 @@ static int ipv4_ping_group_range(struct ctl_table *table, int write,
 	int ret;
 	gid_t urange[2];
 	kgid_t low, high;
-	struct ctl_table tmp = {
+	ctl_table_no_const tmp = {
 		.data = &urange,
 		.maxlen = sizeof(urange),
 		.mode = table->mode,
@@ -155,7 +155,7 @@ static int proc_tcp_congestion_control(struct ctl_table *ctl, int write,
 				       void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	char val[TCP_CA_NAME_MAX];
-	struct ctl_table tbl = {
+	ctl_table_no_const tbl = {
 		.data = val,
 		.maxlen = TCP_CA_NAME_MAX,
 	};
@@ -174,7 +174,7 @@ static int proc_tcp_available_congestion_control(struct ctl_table *ctl,
 						 void __user *buffer, size_t *lenp,
 						 loff_t *ppos)
 {
-	struct ctl_table tbl = { .maxlen = TCP_CA_BUF_MAX, };
+	ctl_table_no_const tbl = { .maxlen = TCP_CA_BUF_MAX, };
 	int ret;
 
 	tbl.data = kmalloc(tbl.maxlen, GFP_USER);
@@ -191,7 +191,7 @@ static int proc_allowed_congestion_control(struct ctl_table *ctl,
 					   void __user *buffer, size_t *lenp,
 					   loff_t *ppos)
 {
-	struct ctl_table tbl = { .maxlen = TCP_CA_BUF_MAX };
+	ctl_table_no_const tbl = { .maxlen = TCP_CA_BUF_MAX };
 	int ret;
 
 	tbl.data = kmalloc(tbl.maxlen, GFP_USER);
@@ -210,7 +210,7 @@ static int proc_tcp_fastopen_key(struct ctl_table *ctl, int write,
 				 void __user *buffer, size_t *lenp,
 				 loff_t *ppos)
 {
-	struct ctl_table tbl = { .maxlen = (TCP_FASTOPEN_KEY_LENGTH * 2 + 10) };
+	ctl_table_no_const tbl = { .maxlen = (TCP_FASTOPEN_KEY_LENGTH * 2 + 10) };
 	struct tcp_fastopen_context *ctxt;
 	int ret;
 	u32  user_key[4]; /* 16 bytes, matching TCP_FASTOPEN_KEY_LENGTH */
@@ -965,13 +965,12 @@ static struct ctl_table ipv4_net_table[] = {
 
 static __net_init int ipv4_sysctl_init_net(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table = NULL;
 
-	table = ipv4_net_table;
 	if (!net_eq(net, &init_net)) {
 		int i;
 
-		table = kmemdup(table, sizeof(ipv4_net_table), GFP_KERNEL);
+		table = kmemdup(ipv4_net_table, sizeof(ipv4_net_table), GFP_KERNEL);
 		if (!table)
 			goto err_alloc;
 
@@ -980,7 +979,10 @@ static __net_init int ipv4_sysctl_init_net(struct net *net)
 			table[i].data += (void *)net - (void *)&init_net;
 	}
 
-	net->ipv4.ipv4_hdr = register_net_sysctl(net, "net/ipv4", table);
+	if (!net_eq(net, &init_net))
+		net->ipv4.ipv4_hdr = register_net_sysctl(net, "net/ipv4", table);
+	else
+		net->ipv4.ipv4_hdr = register_net_sysctl(net, "net/ipv4", ipv4_net_table);
 	if (!net->ipv4.ipv4_hdr)
 		goto err_reg;
 
@@ -1009,7 +1011,7 @@ static __net_exit void ipv4_sysctl_exit_net(struct net *net)
 	kfree(table);
 }
 
-static __net_initdata struct pernet_operations ipv4_sysctl_ops = {
+static __net_initconst struct pernet_operations ipv4_sysctl_ops = {
 	.init = ipv4_sysctl_init_net,
 	.exit = ipv4_sysctl_exit_net,
 };
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index c124c3c..40340ab 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -268,11 +268,13 @@ static void tcp_ecn_rcv_synack(struct tcp_sock *tp, const struct tcphdr *th)
 		tp->ecn_flags &= ~TCP_ECN_OK;
 }
 
+#ifndef CONFIG_GRKERNSEC_NO_SIMULT_CONNECT
 static void tcp_ecn_rcv_syn(struct tcp_sock *tp, const struct tcphdr *th)
 {
 	if ((tp->ecn_flags & TCP_ECN_OK) && (!th->ece || !th->cwr))
 		tp->ecn_flags &= ~TCP_ECN_OK;
 }
+#endif
 
 static bool tcp_ecn_rcv_ecn_echo(const struct tcp_sock *tp, const struct tcphdr *th)
 {
@@ -789,7 +791,7 @@ static void tcp_update_pacing_rate(struct sock *sk)
 	 * without any lock. We want to make sure compiler wont store
 	 * intermediate values in this location.
 	 */
-	ACCESS_ONCE(sk->sk_pacing_rate) = min_t(u64, rate,
+	ACCESS_ONCE_RW(sk->sk_pacing_rate) = min_t(u64, rate,
 						sk->sk_max_pacing_rate);
 }
 
@@ -4722,7 +4724,7 @@ static struct sk_buff *tcp_collapse_one(struct sock *sk, struct sk_buff *skb,
  * simplifies code)
  */
 static void
-tcp_collapse(struct sock *sk, struct sk_buff_head *list,
+__intentional_overflow(5,6) tcp_collapse(struct sock *sk, struct sk_buff_head *list,
 	     struct sk_buff *head, struct sk_buff *tail,
 	     u32 start, u32 end)
 {
@@ -5720,6 +5722,7 @@ discard:
 	    tcp_paws_reject(&tp->rx_opt, 0))
 		goto discard_and_undo;
 
+#ifndef CONFIG_GRKERNSEC_NO_SIMULT_CONNECT
 	if (th->syn) {
 		/* We see SYN without ACK. It is attempt of
 		 * simultaneous connect with crossed SYNs.
@@ -5771,6 +5774,7 @@ discard:
 		goto discard;
 #endif
 	}
+#endif
 	/* "fifth, if neither of the SYN or RST bits is set then
 	 * drop the segment and return."
 	 */
@@ -5816,7 +5820,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb)
 			goto discard;
 
 		if (th->syn) {
-			if (th->fin)
+			if (th->fin || th->urg || th->psh)
 				goto discard;
 			if (icsk->icsk_af_ops->conn_request(sk, skb) < 0)
 				return 1;
@@ -6148,7 +6152,7 @@ struct request_sock *inet_reqsk_alloc(const struct request_sock_ops *ops,
 
 		kmemcheck_annotate_bitfield(ireq, flags);
 		ireq->opt = NULL;
-		atomic64_set(&ireq->ir_cookie, 0);
+		atomic64_set_unchecked(&ireq->ir_cookie, 0);
 		ireq->ireq_state = TCP_NEW_SYN_RECV;
 		write_pnet(&ireq->ireq_net, sock_net(sk_listener));
 		ireq->ireq_family = sk_listener->sk_family;
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index ad45050..8203d2b 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -88,6 +88,10 @@ int sysctl_tcp_tw_reuse __read_mostly;
 int sysctl_tcp_low_latency __read_mostly;
 EXPORT_SYMBOL(sysctl_tcp_low_latency);
 
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+extern int grsec_enable_blackhole;
+#endif
+
 #ifdef CONFIG_TCP_MD5SIG
 static int tcp_v4_md5_hash_hdr(char *md5_hash, const struct tcp_md5sig_key *key,
 			       __be32 daddr, __be32 saddr, const struct tcphdr *th);
@@ -1423,6 +1427,9 @@ int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb)
 	return 0;
 
 reset:
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+	if (!grsec_enable_blackhole)
+#endif
 	tcp_v4_send_reset(rsk, skb);
 discard:
 	kfree_skb(skb);
@@ -1589,12 +1596,19 @@ int tcp_v4_rcv(struct sk_buff *skb)
 lookup:
 	sk = __inet_lookup_skb(&tcp_hashinfo, skb, __tcp_hdrlen(th), th->source,
 			       th->dest);
-	if (!sk)
+	if (!sk) {
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+		ret = 1;
+#endif
 		goto no_tcp_socket;
-
+	}
 process:
-	if (sk->sk_state == TCP_TIME_WAIT)
+	if (sk->sk_state == TCP_TIME_WAIT) {
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+		ret = 2;
+#endif
 		goto do_time_wait;
+	}
 
 	if (sk->sk_state == TCP_NEW_SYN_RECV) {
 		struct request_sock *req = inet_reqsk(sk);
@@ -1679,6 +1693,10 @@ csum_error:
 bad_packet:
 		TCP_INC_STATS_BH(net, TCP_MIB_INERRS);
 	} else {
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+		if (!grsec_enable_blackhole || (ret == 1 &&
+		    (skb->dev->flags & IFF_LOOPBACK)))
+#endif
 		tcp_v4_send_reset(NULL, skb);
 	}
 
@@ -2419,7 +2437,7 @@ static void __net_exit tcp_sk_exit_batch(struct list_head *net_exit_list)
 	inet_twsk_purge(&tcp_hashinfo, &tcp_death_row, AF_INET);
 }
 
-static struct pernet_operations __net_initdata tcp_sk_ops = {
+static struct pernet_operations __net_initconst tcp_sk_ops = {
        .init	   = tcp_sk_init,
        .exit	   = tcp_sk_exit,
        .exit_batch = tcp_sk_exit_batch,
diff --git a/net/ipv4/tcp_metrics.c b/net/ipv4/tcp_metrics.c
index 7b7eec43..dfa9f1c 100644
--- a/net/ipv4/tcp_metrics.c
+++ b/net/ipv4/tcp_metrics.c
@@ -1164,7 +1164,7 @@ static void __net_exit tcp_net_metrics_exit(struct net *net)
 	tcp_metrics_flush_all(net);
 }
 
-static __net_initdata struct pernet_operations tcp_net_metrics_ops = {
+static __net_initconst struct pernet_operations tcp_net_metrics_ops = {
 	.init	=	tcp_net_metrics_init,
 	.exit	=	tcp_net_metrics_exit,
 };
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index acb366d..2d66ef0 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -27,6 +27,10 @@
 #include <net/inet_common.h>
 #include <net/xfrm.h>
 
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+extern int grsec_enable_blackhole;
+#endif
+
 int sysctl_tcp_abort_on_overflow __read_mostly;
 
 struct inet_timewait_death_row tcp_death_row = {
@@ -781,7 +785,10 @@ embryonic_reset:
 		 * avoid becoming vulnerable to outside attack aiming at
 		 * resetting legit local connections.
 		 */
-		req->rsk_ops->send_reset(sk, skb);
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+		if (!grsec_enable_blackhole)
+#endif
+			req->rsk_ops->send_reset(sk, skb);
 	} else if (fastopen) { /* received a valid RST pkt */
 		reqsk_fastopen_remove(sk, req, true);
 		tcp_reset(sk);
diff --git a/net/ipv4/tcp_probe.c b/net/ipv4/tcp_probe.c
index f6c50af..1eb9aa5 100644
--- a/net/ipv4/tcp_probe.c
+++ b/net/ipv4/tcp_probe.c
@@ -236,7 +236,7 @@ static ssize_t tcpprobe_read(struct file *file, char __user *buf,
 		if (cnt + width >= len)
 			break;
 
-		if (copy_to_user(buf + cnt, tbuf, width))
+		if (width > sizeof tbuf || copy_to_user(buf + cnt, tbuf, width))
 			return -EFAULT;
 		cnt += width;
 	}
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 49bc474..9f9767d 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -22,6 +22,10 @@
 #include <linux/gfp.h>
 #include <net/tcp.h>
 
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+extern int grsec_lastack_retries;
+#endif
+
 int sysctl_tcp_thin_linear_timeouts __read_mostly;
 
 static void tcp_write_err(struct sock *sk)
@@ -200,6 +204,13 @@ static int tcp_write_timeout(struct sock *sk)
 		}
 	}
 
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+	if ((sk->sk_state == TCP_LAST_ACK) &&
+	    (grsec_lastack_retries > 0) &&
+	    (grsec_lastack_retries < retry_until))
+		retry_until = grsec_lastack_retries;
+#endif
+
 	if (retransmits_timed_out(sk, retry_until,
 				  syn_set ? 0 : icsk->icsk_user_timeout, syn_set)) {
 		/* Has it gone just too far? */
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index e9853df..4b57916 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -87,6 +87,7 @@
 #include <linux/types.h>
 #include <linux/fcntl.h>
 #include <linux/module.h>
+#include <linux/security.h>
 #include <linux/socket.h>
 #include <linux/sockios.h>
 #include <linux/igmp.h>
@@ -115,6 +116,10 @@
 #include "udp_impl.h"
 #include <net/sock_reuseport.h>
 
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+extern int grsec_enable_blackhole;
+#endif
+
 struct udp_table udp_table __read_mostly;
 EXPORT_SYMBOL(udp_table);
 
@@ -696,6 +701,9 @@ static inline bool __udp_is_mcast_sock(struct net *net, struct sock *sk,
 	return true;
 }
 
+extern int gr_search_udp_recvmsg(struct sock *sk, const struct sk_buff *skb);
+extern int gr_search_udp_sendmsg(struct sock *sk, struct sockaddr_in *addr);
+
 /*
  * This routine is called by the ICMP module when it gets some
  * sort of error condition.  If err < 0 then the socket should
@@ -1022,9 +1030,18 @@ int udp_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
 		dport = usin->sin_port;
 		if (dport == 0)
 			return -EINVAL;
+
+		err = gr_search_udp_sendmsg(sk, usin);
+		if (err)
+			return err;
 	} else {
 		if (sk->sk_state != TCP_ESTABLISHED)
 			return -EDESTADDRREQ;
+
+		err = gr_search_udp_sendmsg(sk, NULL);
+		if (err)
+			return err;
+
 		daddr = inet->inet_daddr;
 		dport = inet->inet_dport;
 		/* Open fast path for connected socket.
@@ -1281,7 +1298,7 @@ static unsigned int first_packet_length(struct sock *sk)
 				 IS_UDPLITE(sk));
 		UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS,
 				 IS_UDPLITE(sk));
-		atomic_inc(&sk->sk_drops);
+		atomic_inc_unchecked(&sk->sk_drops);
 		__skb_unlink(skb, rcvq);
 		__skb_queue_tail(&list_kill, skb);
 	}
@@ -1362,6 +1379,10 @@ try_again:
 	if (!skb)
 		goto out;
 
+	err = gr_search_udp_recvmsg(sk, skb);
+	if (err)
+		goto out_free;
+
 	ulen = skb->len - sizeof(struct udphdr);
 	copied = len;
 	if (copied > ulen)
@@ -1395,7 +1416,7 @@ try_again:
 	if (unlikely(err)) {
 		trace_kfree_skb(skb, udp_recvmsg);
 		if (!peeked) {
-			atomic_inc(&sk->sk_drops);
+			atomic_inc_unchecked(&sk->sk_drops);
 			UDP_INC_STATS_USER(sock_net(sk),
 					   UDP_MIB_INERRORS, is_udplite);
 		}
@@ -1697,7 +1718,7 @@ csum_error:
 	UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_CSUMERRORS, is_udplite);
 drop:
 	UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, is_udplite);
-	atomic_inc(&sk->sk_drops);
+	atomic_inc_unchecked(&sk->sk_drops);
 	kfree_skb(skb);
 	return -1;
 }
@@ -1715,7 +1736,7 @@ static void flush_stack(struct sock **stack, unsigned int count,
 			skb1 = (i == final) ? skb : skb_clone(skb, GFP_ATOMIC);
 
 		if (!skb1) {
-			atomic_inc(&sk->sk_drops);
+			atomic_inc_unchecked(&sk->sk_drops);
 			UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_RCVBUFERRORS,
 					 IS_UDPLITE(sk));
 			UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS,
@@ -1921,6 +1942,9 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
 		goto csum_error;
 
 	UDP_INC_STATS_BH(net, UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE);
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+	if (!grsec_enable_blackhole || (skb->dev->flags & IFF_LOOPBACK))
+#endif
 	icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);
 
 	/*
@@ -2529,7 +2553,7 @@ static void udp4_format_sock(struct sock *sp, struct seq_file *f,
 		from_kuid_munged(seq_user_ns(f), sock_i_uid(sp)),
 		0, sock_i_ino(sp),
 		atomic_read(&sp->sk_refcnt), sp,
-		atomic_read(&sp->sk_drops));
+		atomic_read_unchecked(&sp->sk_drops));
 }
 
 int udp4_seq_show(struct seq_file *seq, void *v)
diff --git a/net/ipv4/xfrm4_mode_beet.c b/net/ipv4/xfrm4_mode_beet.c
index 71acd00..d2c74ee 100644
--- a/net/ipv4/xfrm4_mode_beet.c
+++ b/net/ipv4/xfrm4_mode_beet.c
@@ -36,7 +36,7 @@ static void xfrm4_beet_make_header(struct sk_buff *skb)
  *
  * The top IP header will be constructed per draft-nikander-esp-beet-mode-06.txt.
  */
-static int xfrm4_beet_output(struct xfrm_state *x, struct sk_buff *skb)
+static int __intentional_overflow(0) xfrm4_beet_output(struct xfrm_state *x, struct sk_buff *skb)
 {
 	struct ip_beet_phdr *ph;
 	struct iphdr *top_iph;
diff --git a/net/ipv4/xfrm4_mode_transport.c b/net/ipv4/xfrm4_mode_transport.c
index fd840c7..b517627 100644
--- a/net/ipv4/xfrm4_mode_transport.c
+++ b/net/ipv4/xfrm4_mode_transport.c
@@ -18,7 +18,7 @@
  * The IP header will be moved forward to make space for the encapsulation
  * header.
  */
-static int xfrm4_transport_output(struct xfrm_state *x, struct sk_buff *skb)
+static int __intentional_overflow(0) xfrm4_transport_output(struct xfrm_state *x, struct sk_buff *skb)
 {
 	struct iphdr *iph = ip_hdr(skb);
 	int ihl = iph->ihl * 4;
diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index 7b0edb3..f597227 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -215,11 +215,11 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
 	fl4->flowi4_tos = iph->tos;
 }
 
-static inline int xfrm4_garbage_collect(struct dst_ops *ops)
+static int xfrm4_garbage_collect(struct dst_ops *ops)
 {
 	struct net *net = container_of(ops, struct net, xfrm.xfrm4_dst_ops);
 
-	xfrm4_policy_afinfo.garbage_collect(net);
+	xfrm_garbage_collect_deferred(net);
 	return (dst_entries_get_slow(ops) > ops->gc_thresh * 2);
 }
 
@@ -297,19 +297,19 @@ static struct ctl_table xfrm4_policy_table[] = {
 
 static int __net_init xfrm4_net_sysctl_init(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table = NULL;
 	struct ctl_table_header *hdr;
 
-	table = xfrm4_policy_table;
 	if (!net_eq(net, &init_net)) {
-		table = kmemdup(table, sizeof(xfrm4_policy_table), GFP_KERNEL);
+		table = kmemdup(xfrm4_policy_table, sizeof(xfrm4_policy_table), GFP_KERNEL);
 		if (!table)
 			goto err_alloc;
 
 		table[0].data = &net->xfrm.xfrm4_dst_ops.gc_thresh;
-	}
 
-	hdr = register_net_sysctl(net, "net/ipv4", table);
+		hdr = register_net_sysctl(net, "net/ipv4", table);
+	} else
+		hdr = register_net_sysctl(net, "net/ipv4", xfrm4_policy_table);
 	if (!hdr)
 		goto err_reg;
 
@@ -317,8 +317,7 @@ static int __net_init xfrm4_net_sysctl_init(struct net *net)
 	return 0;
 
 err_reg:
-	if (!net_eq(net, &init_net))
-		kfree(table);
+	kfree(table);
 err_alloc:
 	return -ENOMEM;
 }
@@ -369,7 +368,7 @@ static void __net_exit xfrm4_net_exit(struct net *net)
 	dst_entries_destroy(&net->xfrm.xfrm4_dst_ops);
 }
 
-static struct pernet_operations __net_initdata xfrm4_net_ops = {
+static struct pernet_operations __net_initconst xfrm4_net_ops = {
 	.init	= xfrm4_net_init,
 	.exit	= xfrm4_net_exit,
 };
diff --git a/net/ipv4/xfrm4_state.c b/net/ipv4/xfrm4_state.c
index 542074c..648df74 100644
--- a/net/ipv4/xfrm4_state.c
+++ b/net/ipv4/xfrm4_state.c
@@ -56,6 +56,7 @@ xfrm4_init_temprop(struct xfrm_state *x, const struct xfrm_tmpl *tmpl,
 
 int xfrm4_extract_header(struct sk_buff *skb)
 {
+	unsigned char iph_tmp;
 	const struct iphdr *iph = ip_hdr(skb);
 
 	XFRM_MODE_SKB_CB(skb)->ihl = sizeof(*iph);
@@ -63,7 +64,8 @@ int xfrm4_extract_header(struct sk_buff *skb)
 	XFRM_MODE_SKB_CB(skb)->frag_off = iph->frag_off;
 	XFRM_MODE_SKB_CB(skb)->tos = iph->tos;
 	XFRM_MODE_SKB_CB(skb)->ttl = iph->ttl;
-	XFRM_MODE_SKB_CB(skb)->optlen = iph->ihl * 4 - sizeof(*iph);
+	iph_tmp = iph->ihl * 4;
+	XFRM_MODE_SKB_CB(skb)->optlen = iph_tmp - sizeof(*iph);
 	memset(XFRM_MODE_SKB_CB(skb)->flow_lbl, 0,
 	       sizeof(XFRM_MODE_SKB_CB(skb)->flow_lbl));
 
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 8ec4b30..fee6f55 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -179,7 +179,7 @@ static struct ipv6_devconf ipv6_devconf __read_mostly = {
 	.hop_limit		= IPV6_DEFAULT_HOPLIMIT,
 	.mtu6			= IPV6_MIN_MTU,
 	.accept_ra		= 1,
-	.accept_redirects	= 1,
+	.accept_redirects	= 0,
 	.autoconf		= 1,
 	.force_mld_version	= 0,
 	.mldv1_unsolicited_report_interval = 10 * HZ,
@@ -224,7 +224,7 @@ static struct ipv6_devconf ipv6_devconf_dflt __read_mostly = {
 	.hop_limit		= IPV6_DEFAULT_HOPLIMIT,
 	.mtu6			= IPV6_MIN_MTU,
 	.accept_ra		= 1,
-	.accept_redirects	= 1,
+	.accept_redirects	= 0,
 	.autoconf		= 1,
 	.force_mld_version	= 0,
 	.mldv1_unsolicited_report_interval = 10 * HZ,
@@ -651,7 +651,7 @@ static int inet6_netconf_dump_devconf(struct sk_buff *skb,
 		idx = 0;
 		head = &net->dev_index_head[h];
 		rcu_read_lock();
-		cb->seq = atomic_read(&net->ipv6.dev_addr_genid) ^
+		cb->seq = atomic_read_unchecked(&net->ipv6.dev_addr_genid) ^
 			  net->dev_base_seq;
 		hlist_for_each_entry_rcu(dev, head, index_hlist) {
 			if (idx < s_idx)
@@ -2597,7 +2597,7 @@ int addrconf_set_dstaddr(struct net *net, void __user *arg)
 		p.iph.ihl = 5;
 		p.iph.protocol = IPPROTO_IPV6;
 		p.iph.ttl = 64;
-		ifr.ifr_ifru.ifru_data = (__force void __user *)&p;
+		ifr.ifr_ifru.ifru_data = (void __force_user *)&p;
 
 		if (ops->ndo_do_ioctl) {
 			mm_segment_t oldfs = get_fs();
@@ -4026,16 +4026,23 @@ static const struct file_operations if6_fops = {
 	.release	= seq_release_net,
 };
 
+extern void register_ipv6_seq_ops_addr(struct seq_operations *addr);
+extern void unregister_ipv6_seq_ops_addr(void);
+
 static int __net_init if6_proc_net_init(struct net *net)
 {
-	if (!proc_create("if_inet6", S_IRUGO, net->proc_net, &if6_fops))
+	register_ipv6_seq_ops_addr(&if6_seq_ops);
+	if (!proc_create("if_inet6", S_IRUGO, net->proc_net, &if6_fops)) {
+		unregister_ipv6_seq_ops_addr();
 		return -ENOMEM;
+	}
 	return 0;
 }
 
 static void __net_exit if6_proc_net_exit(struct net *net)
 {
 	remove_proc_entry("if_inet6", net->proc_net);
+	unregister_ipv6_seq_ops_addr();
 }
 
 static struct pernet_operations if6_proc_net_ops = {
@@ -4654,7 +4661,7 @@ static int inet6_dump_addr(struct sk_buff *skb, struct netlink_callback *cb,
 	s_ip_idx = ip_idx = cb->args[2];
 
 	rcu_read_lock();
-	cb->seq = atomic_read(&net->ipv6.dev_addr_genid) ^ net->dev_base_seq;
+	cb->seq = atomic_read_unchecked(&net->ipv6.dev_addr_genid) ^ net->dev_base_seq;
 	for (h = s_h; h < NETDEV_HASHENTRIES; h++, s_idx = 0) {
 		idx = 0;
 		head = &net->dev_index_head[h];
@@ -4867,7 +4874,7 @@ static inline size_t inet6_if_nlmsg_size(void)
 	       + nla_total_size(inet6_ifla6_size()); /* IFLA_PROTINFO */
 }
 
-static inline void __snmp6_fill_statsdev(u64 *stats, atomic_long_t *mib,
+static inline void __snmp6_fill_statsdev(u64 *stats, atomic_long_unchecked_t *mib,
 				      int items, int bytes)
 {
 	int i;
@@ -4877,7 +4884,7 @@ static inline void __snmp6_fill_statsdev(u64 *stats, atomic_long_t *mib,
 	/* Use put_unaligned() because stats may not be aligned for u64. */
 	put_unaligned(items, &stats[0]);
 	for (i = 1; i < items; i++)
-		put_unaligned(atomic_long_read(&mib[i]), &stats[i]);
+		put_unaligned(atomic_long_read_unchecked(&mib[i]), &stats[i]);
 
 	memset(&stats[items], 0, pad);
 }
@@ -5332,7 +5339,7 @@ static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
 		rt_genid_bump_ipv6(net);
 		break;
 	}
-	atomic_inc(&net->ipv6.dev_addr_genid);
+	atomic_inc_unchecked(&net->ipv6.dev_addr_genid);
 }
 
 static void ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
@@ -5352,7 +5359,7 @@ int addrconf_sysctl_forward(struct ctl_table *ctl, int write,
 	int *valp = ctl->data;
 	int val = *valp;
 	loff_t pos = *ppos;
-	struct ctl_table lctl;
+	ctl_table_no_const lctl;
 	int ret;
 
 	/*
@@ -5375,7 +5382,7 @@ static
 int addrconf_sysctl_hop_limit(struct ctl_table *ctl, int write,
                               void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	struct ctl_table lctl;
+	ctl_table_no_const lctl;
 	int min_hl = 1, max_hl = 255;
 
 	lctl = *ctl;
@@ -5391,7 +5398,7 @@ int addrconf_sysctl_mtu(struct ctl_table *ctl, int write,
 {
 	struct inet6_dev *idev = ctl->extra1;
 	int min_mtu = IPV6_MIN_MTU;
-	struct ctl_table lctl;
+	ctl_table_no_const lctl;
 
 	lctl = *ctl;
 	lctl.extra1 = &min_mtu;
@@ -5466,7 +5473,7 @@ int addrconf_sysctl_disable(struct ctl_table *ctl, int write,
 	int *valp = ctl->data;
 	int val = *valp;
 	loff_t pos = *ppos;
-	struct ctl_table lctl;
+	ctl_table_no_const lctl;
 	int ret;
 
 	/*
@@ -5531,7 +5538,7 @@ static int addrconf_sysctl_stable_secret(struct ctl_table *ctl, int write,
 	int err;
 	struct in6_addr addr;
 	char str[IPV6_MAX_STRLEN];
-	struct ctl_table lctl = *ctl;
+	ctl_table_no_const lctl = *ctl;
 	struct net *net = ctl->extra2;
 	struct ipv6_stable_secret *secret = ctl->data;
 
@@ -5600,7 +5607,7 @@ int addrconf_sysctl_ignore_routes_with_linkdown(struct ctl_table *ctl,
 	int *valp = ctl->data;
 	int val = *valp;
 	loff_t pos = *ppos;
-	struct ctl_table lctl;
+	ctl_table_no_const lctl;
 	int ret;
 
 	/* ctl->data points to idev->cnf.ignore_routes_when_linkdown
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index b11c37c..38e3339 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -784,7 +784,7 @@ static int __net_init inet6_net_init(struct net *net)
 	net->ipv6.sysctl.idgen_retries = 3;
 	net->ipv6.sysctl.idgen_delay = 1 * HZ;
 	net->ipv6.sysctl.flowlabel_state_ranges = 0;
-	atomic_set(&net->ipv6.fib6_sernum, 1);
+	atomic_set_unchecked(&net->ipv6.fib6_sernum, 1);
 
 	err = ipv6_init_mibs(net);
 	if (err)
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index 9dd3882..a03c07e 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -1025,5 +1025,5 @@ void ip6_dgram_sock_seq_show(struct seq_file *seq, struct sock *sp,
 		   0,
 		   sock_i_ino(sp),
 		   atomic_read(&sp->sk_refcnt), sp,
-		   atomic_read(&sp->sk_drops));
+		   atomic_read_unchecked(&sp->sk_drops));
 }
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index 0013cac..08db290 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -997,7 +997,7 @@ static struct ctl_table ipv6_icmp_table_template[] = {
 
 struct ctl_table * __net_init ipv6_icmp_sysctl_init(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table;
 
 	table = kmemdup(ipv6_icmp_table_template,
 			sizeof(ipv6_icmp_table_template),
diff --git a/net/ipv6/inet6_hashtables.c b/net/ipv6/inet6_hashtables.c
index 70f2628..721dd1e 100644
--- a/net/ipv6/inet6_hashtables.c
+++ b/net/ipv6/inet6_hashtables.c
@@ -210,7 +210,7 @@ struct sock *inet6_lookup(struct net *net, struct inet_hashinfo *hashinfo,
 EXPORT_SYMBOL_GPL(inet6_lookup);
 
 static int __inet6_check_established(struct inet_timewait_death_row *death_row,
-				     struct sock *sk, const __u16 lport,
+				     struct sock *sk, __u16 lport,
 				     struct inet_timewait_sock **twp)
 {
 	struct inet_hashinfo *hinfo = death_row->hashinfo;
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index ea071fa..8bdb3e0 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -98,9 +98,9 @@ static int fib6_new_sernum(struct net *net)
 	int new, old;
 
 	do {
-		old = atomic_read(&net->ipv6.fib6_sernum);
+		old = atomic_read_unchecked(&net->ipv6.fib6_sernum);
 		new = old < INT_MAX ? old + 1 : 1;
-	} while (atomic_cmpxchg(&net->ipv6.fib6_sernum,
+	} while (atomic_cmpxchg_unchecked(&net->ipv6.fib6_sernum,
 				old, new) != old);
 	return new;
 }
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index 4e636e6..26d1e42 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -70,8 +70,8 @@ struct ip6gre_net {
 	struct net_device *fb_tunnel_dev;
 };
 
-static struct rtnl_link_ops ip6gre_link_ops __read_mostly;
-static struct rtnl_link_ops ip6gre_tap_ops __read_mostly;
+static struct rtnl_link_ops ip6gre_link_ops;
+static struct rtnl_link_ops ip6gre_tap_ops;
 static int ip6gre_tunnel_init(struct net_device *dev);
 static void ip6gre_tunnel_setup(struct net_device *dev);
 static void ip6gre_tunnel_link(struct ip6gre_net *ign, struct ip6_tnl *t);
@@ -1303,7 +1303,7 @@ static void ip6gre_fb_tunnel_init(struct net_device *dev)
 }
 
 
-static struct inet6_protocol ip6gre_protocol __read_mostly = {
+static struct inet6_protocol ip6gre_protocol = {
 	.handler     = ip6gre_rcv,
 	.err_handler = ip6gre_err,
 	.flags       = INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
@@ -1658,7 +1658,7 @@ static const struct nla_policy ip6gre_policy[IFLA_GRE_MAX + 1] = {
 	[IFLA_GRE_FLAGS]       = { .type = NLA_U32 },
 };
 
-static struct rtnl_link_ops ip6gre_link_ops __read_mostly = {
+static struct rtnl_link_ops ip6gre_link_ops = {
 	.kind		= "ip6gre",
 	.maxtype	= IFLA_GRE_MAX,
 	.policy		= ip6gre_policy,
@@ -1673,7 +1673,7 @@ static struct rtnl_link_ops ip6gre_link_ops __read_mostly = {
 	.get_link_net	= ip6_tnl_get_link_net,
 };
 
-static struct rtnl_link_ops ip6gre_tap_ops __read_mostly = {
+static struct rtnl_link_ops ip6gre_tap_ops = {
 	.kind		= "ip6gretap",
 	.maxtype	= IFLA_GRE_MAX,
 	.policy		= ip6gre_policy,
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 1f20345..b3499ef 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -80,7 +80,7 @@ static u32 HASH(const struct in6_addr *addr1, const struct in6_addr *addr2)
 
 static int ip6_tnl_dev_init(struct net_device *dev);
 static void ip6_tnl_dev_setup(struct net_device *dev);
-static struct rtnl_link_ops ip6_link_ops __read_mostly;
+static struct rtnl_link_ops ip6_link_ops;
 
 static int ip6_tnl_net_id __read_mostly;
 struct ip6_tnl_net {
@@ -1752,7 +1752,7 @@ static const struct nla_policy ip6_tnl_policy[IFLA_IPTUN_MAX + 1] = {
 	[IFLA_IPTUN_PROTO]		= { .type = NLA_U8 },
 };
 
-static struct rtnl_link_ops ip6_link_ops __read_mostly = {
+static struct rtnl_link_ops ip6_link_ops = {
 	.kind		= "ip6tnl",
 	.maxtype	= IFLA_IPTUN_MAX,
 	.policy		= ip6_tnl_policy,
diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
index d90a11f..02af54d 100644
--- a/net/ipv6/ip6_vti.c
+++ b/net/ipv6/ip6_vti.c
@@ -62,7 +62,7 @@ static u32 HASH(const struct in6_addr *addr1, const struct in6_addr *addr2)
 
 static int vti6_dev_init(struct net_device *dev);
 static void vti6_dev_setup(struct net_device *dev);
-static struct rtnl_link_ops vti6_link_ops __read_mostly;
+static struct rtnl_link_ops vti6_link_ops;
 
 static int vti6_net_id __read_mostly;
 struct vti6_net {
@@ -1019,7 +1019,7 @@ static const struct nla_policy vti6_policy[IFLA_VTI_MAX + 1] = {
 	[IFLA_VTI_OKEY]		= { .type = NLA_U32 },
 };
 
-static struct rtnl_link_ops vti6_link_ops __read_mostly = {
+static struct rtnl_link_ops vti6_link_ops = {
 	.kind		= "vti6",
 	.maxtype	= IFLA_VTI_MAX,
 	.policy		= vti6_policy,
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 4449ad1..e47579c 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -1025,7 +1025,7 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
 		if (sk->sk_type != SOCK_STREAM)
 			return -ENOPROTOOPT;
 
-		msg.msg_control = optval;
+		msg.msg_control = (void __force_kernel *)optval;
 		msg.msg_controllen = len;
 		msg.msg_flags = flags;
 
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index c245895..68c1693 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -665,7 +665,7 @@ static void ndisc_solicit(struct neighbour *neigh, struct sk_buff *skb)
 	struct in6_addr mcaddr;
 	struct net_device *dev = neigh->dev;
 	struct in6_addr *target = (struct in6_addr *)&neigh->primary_key;
-	int probes = atomic_read(&neigh->probes);
+	int probes = atomic_read_unchecked(&neigh->probes);
 
 	if (skb && ipv6_chk_addr_and_flags(dev_net(dev), &ipv6_hdr(skb)->saddr,
 					   dev, 1,
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index 9021b43..b2e6979 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -1094,14 +1094,14 @@ static int compat_table_info(const struct xt_table_info *info,
 #endif
 
 static int get_info(struct net *net, void __user *user,
-		    const int *len, int compat)
+		    int len, int compat)
 {
 	char name[XT_TABLE_MAXNAMELEN];
 	struct xt_table *t;
 	int ret;
 
-	if (*len != sizeof(struct ip6t_getinfo)) {
-		duprintf("length %u != %zu\n", *len,
+	if (len != sizeof(struct ip6t_getinfo)) {
+		duprintf("length %u != %zu\n", len,
 			 sizeof(struct ip6t_getinfo));
 		return -EINVAL;
 	}
@@ -1138,7 +1138,7 @@ static int get_info(struct net *net, void __user *user,
 		info.size = private->size;
 		strcpy(info.name, name);
 
-		if (copy_to_user(user, &info, *len) != 0)
+		if (copy_to_user(user, &info, len) != 0)
 			ret = -EFAULT;
 		else
 			ret = 0;
@@ -1831,7 +1831,7 @@ compat_do_ip6t_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
 
 	switch (cmd) {
 	case IP6T_SO_GET_INFO:
-		ret = get_info(sock_net(sk), user, len, 1);
+		ret = get_info(sock_net(sk), user, *len, 1);
 		break;
 	case IP6T_SO_GET_ENTRIES:
 		ret = compat_get_entries(sock_net(sk), user, len);
@@ -1878,7 +1878,7 @@ do_ip6t_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
 
 	switch (cmd) {
 	case IP6T_SO_GET_INFO:
-		ret = get_info(sock_net(sk), user, len, 0);
+		ret = get_info(sock_net(sk), user, *len, 0);
 		break;
 
 	case IP6T_SO_GET_ENTRIES:
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index e4347ae..c7654e7 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -95,12 +95,11 @@ static struct ctl_table nf_ct_frag6_sysctl_table[] = {
 
 static int nf_ct_frag6_sysctl_register(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table = NULL;
 	struct ctl_table_header *hdr;
 
-	table = nf_ct_frag6_sysctl_table;
 	if (!net_eq(net, &init_net)) {
-		table = kmemdup(table, sizeof(nf_ct_frag6_sysctl_table),
+		table = kmemdup(nf_ct_frag6_sysctl_table, sizeof(nf_ct_frag6_sysctl_table),
 				GFP_KERNEL);
 		if (table == NULL)
 			goto err_alloc;
@@ -111,9 +110,9 @@ static int nf_ct_frag6_sysctl_register(struct net *net)
 		table[2].data = &net->nf_frag.frags.high_thresh;
 		table[2].extra1 = &net->nf_frag.frags.low_thresh;
 		table[2].extra2 = &init_net.nf_frag.frags.high_thresh;
-	}
-
-	hdr = register_net_sysctl(net, "net/netfilter", table);
+		hdr = register_net_sysctl(net, "net/netfilter", table);
+	} else
+		hdr = register_net_sysctl(net, "net/netfilter", nf_ct_frag6_sysctl_table);
 	if (hdr == NULL)
 		goto err_reg;
 
@@ -121,8 +120,7 @@ static int nf_ct_frag6_sysctl_register(struct net *net)
 	return 0;
 
 err_reg:
-	if (!net_eq(net, &init_net))
-		kfree(table);
+	kfree(table);
 err_alloc:
 	return -ENOMEM;
 }
diff --git a/net/ipv6/ping.c b/net/ipv6/ping.c
index c382db7..cd9e4d9 100644
--- a/net/ipv6/ping.c
+++ b/net/ipv6/ping.c
@@ -239,6 +239,24 @@ static struct pernet_operations ping_v6_net_ops = {
 };
 #endif
 
+static struct pingv6_ops real_pingv6_ops = {
+	.ipv6_recv_error		= ipv6_recv_error,
+	.ip6_datagram_recv_common_ctl	= ip6_datagram_recv_common_ctl,
+	.ip6_datagram_recv_specific_ctl	= ip6_datagram_recv_specific_ctl,
+	.icmpv6_err_convert		= icmpv6_err_convert,
+	.ipv6_icmp_error		= ipv6_icmp_error,
+	.ipv6_chk_addr			= ipv6_chk_addr,
+};
+
+static struct pingv6_ops dummy_pingv6_ops = {
+	.ipv6_recv_error		= dummy_ipv6_recv_error,
+	.ip6_datagram_recv_common_ctl	= dummy_ip6_datagram_recv_ctl,
+	.ip6_datagram_recv_specific_ctl	= dummy_ip6_datagram_recv_ctl,
+	.icmpv6_err_convert		= dummy_icmpv6_err_convert,
+	.ipv6_icmp_error		= dummy_ipv6_icmp_error,
+	.ipv6_chk_addr			= dummy_ipv6_chk_addr,
+};
+
 int __init pingv6_init(void)
 {
 #ifdef CONFIG_PROC_FS
@@ -246,13 +264,7 @@ int __init pingv6_init(void)
 	if (ret)
 		return ret;
 #endif
-	pingv6_ops.ipv6_recv_error = ipv6_recv_error;
-	pingv6_ops.ip6_datagram_recv_common_ctl = ip6_datagram_recv_common_ctl;
-	pingv6_ops.ip6_datagram_recv_specific_ctl =
-		ip6_datagram_recv_specific_ctl;
-	pingv6_ops.icmpv6_err_convert = icmpv6_err_convert;
-	pingv6_ops.ipv6_icmp_error = ipv6_icmp_error;
-	pingv6_ops.ipv6_chk_addr = ipv6_chk_addr;
+	pingv6_ops = &real_pingv6_ops;
 	return inet6_register_protosw(&pingv6_protosw);
 }
 
@@ -261,14 +273,9 @@ int __init pingv6_init(void)
  */
 void pingv6_exit(void)
 {
-	pingv6_ops.ipv6_recv_error = dummy_ipv6_recv_error;
-	pingv6_ops.ip6_datagram_recv_common_ctl = dummy_ip6_datagram_recv_ctl;
-	pingv6_ops.ip6_datagram_recv_specific_ctl = dummy_ip6_datagram_recv_ctl;
-	pingv6_ops.icmpv6_err_convert = dummy_icmpv6_err_convert;
-	pingv6_ops.ipv6_icmp_error = dummy_ipv6_icmp_error;
-	pingv6_ops.ipv6_chk_addr = dummy_ipv6_chk_addr;
 #ifdef CONFIG_PROC_FS
 	unregister_pernet_subsys(&ping_v6_net_ops);
 #endif
+	pingv6_ops = &dummy_pingv6_ops;
 	inet6_unregister_protosw(&pingv6_protosw);
 }
diff --git a/net/ipv6/proc.c b/net/ipv6/proc.c
index 679253d0..d85dd97 100644
--- a/net/ipv6/proc.c
+++ b/net/ipv6/proc.c
@@ -151,7 +151,7 @@ static const struct snmp_mib snmp6_udplite6_list[] = {
 	SNMP_MIB_SENTINEL
 };
 
-static void snmp6_seq_show_icmpv6msg(struct seq_file *seq, atomic_long_t *smib)
+static void snmp6_seq_show_icmpv6msg(struct seq_file *seq, atomic_long_unchecked_t *smib)
 {
 	char name[32];
 	int i;
@@ -168,14 +168,14 @@ static void snmp6_seq_show_icmpv6msg(struct seq_file *seq, atomic_long_t *smib)
 		snprintf(name, sizeof(name), "Icmp6%s%s",
 			i & 0x100 ? "Out" : "In", p);
 		seq_printf(seq, "%-32s\t%lu\n", name,
-			   atomic_long_read(smib + i));
+			   atomic_long_read_unchecked(smib + i));
 	}
 
 	/* print by number (nonzero only) - ICMPMsgStat format */
 	for (i = 0; i < ICMP6MSG_MIB_MAX; i++) {
 		unsigned long val;
 
-		val = atomic_long_read(smib + i);
+		val = atomic_long_read_unchecked(smib + i);
 		if (!val)
 			continue;
 		snprintf(name, sizeof(name), "Icmp6%sType%u",
@@ -188,7 +188,7 @@ static void snmp6_seq_show_icmpv6msg(struct seq_file *seq, atomic_long_t *smib)
  * or shared one (smib != NULL)
  */
 static void snmp6_seq_show_item(struct seq_file *seq, void __percpu *pcpumib,
-				atomic_long_t *smib,
+				atomic_long_unchecked_t *smib,
 				const struct snmp_mib *itemlist)
 {
 	int i;
@@ -197,7 +197,7 @@ static void snmp6_seq_show_item(struct seq_file *seq, void __percpu *pcpumib,
 	for (i = 0; itemlist[i].name; i++) {
 		val = pcpumib ?
 			snmp_fold_field(pcpumib, itemlist[i].entry) :
-			atomic_long_read(smib + itemlist[i].entry);
+			atomic_long_read_unchecked(smib + itemlist[i].entry);
 		seq_printf(seq, "%-32s\t%lu\n", itemlist[i].name, val);
 	}
 }
@@ -310,7 +310,7 @@ static int __net_init ipv6_proc_init_net(struct net *net)
 	if (!proc_create("snmp6", S_IRUGO, net->proc_net, &snmp6_seq_fops))
 		goto proc_snmp6_fail;
 
-	net->mib.proc_net_devsnmp6 = proc_mkdir("dev_snmp6", net->proc_net);
+	net->mib.proc_net_devsnmp6 = proc_mkdir_restrict("dev_snmp6", net->proc_net);
 	if (!net->mib.proc_net_devsnmp6)
 		goto proc_dev_snmp6_fail;
 	return 0;
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index fa59dd7..d9d9c9d 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -389,7 +389,7 @@ static inline int rawv6_rcv_skb(struct sock *sk, struct sk_buff *skb)
 {
 	if ((raw6_sk(sk)->checksum || rcu_access_pointer(sk->sk_filter)) &&
 	    skb_checksum_complete(skb)) {
-		atomic_inc(&sk->sk_drops);
+		atomic_inc_unchecked(&sk->sk_drops);
 		kfree_skb(skb);
 		return NET_RX_DROP;
 	}
@@ -417,7 +417,7 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
 	struct raw6_sock *rp = raw6_sk(sk);
 
 	if (!xfrm6_policy_check(sk, XFRM_POLICY_IN, skb)) {
-		atomic_inc(&sk->sk_drops);
+		atomic_inc_unchecked(&sk->sk_drops);
 		kfree_skb(skb);
 		return NET_RX_DROP;
 	}
@@ -441,7 +441,7 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
 
 	if (inet->hdrincl) {
 		if (skb_checksum_complete(skb)) {
-			atomic_inc(&sk->sk_drops);
+			atomic_inc_unchecked(&sk->sk_drops);
 			kfree_skb(skb);
 			return NET_RX_DROP;
 		}
@@ -609,7 +609,7 @@ out:
 	return err;
 }
 
-static int rawv6_send_hdrinc(struct sock *sk, struct msghdr *msg, int length,
+static int rawv6_send_hdrinc(struct sock *sk, struct msghdr *msg, unsigned int length,
 			struct flowi6 *fl6, struct dst_entry **dstp,
 			unsigned int flags)
 {
@@ -922,12 +922,15 @@ do_confirm:
 static int rawv6_seticmpfilter(struct sock *sk, int level, int optname,
 			       char __user *optval, int optlen)
 {
+	struct icmp6_filter filter;
+
 	switch (optname) {
 	case ICMPV6_FILTER:
 		if (optlen > sizeof(struct icmp6_filter))
 			optlen = sizeof(struct icmp6_filter);
-		if (copy_from_user(&raw6_sk(sk)->filter, optval, optlen))
+		if (copy_from_user(&filter, optval, optlen))
 			return -EFAULT;
+		raw6_sk(sk)->filter = filter;
 		return 0;
 	default:
 		return -ENOPROTOOPT;
@@ -940,6 +943,7 @@ static int rawv6_geticmpfilter(struct sock *sk, int level, int optname,
 			       char __user *optval, int __user *optlen)
 {
 	int len;
+	struct icmp6_filter filter;
 
 	switch (optname) {
 	case ICMPV6_FILTER:
@@ -951,7 +955,8 @@ static int rawv6_geticmpfilter(struct sock *sk, int level, int optname,
 			len = sizeof(struct icmp6_filter);
 		if (put_user(len, optlen))
 			return -EFAULT;
-		if (copy_to_user(optval, &raw6_sk(sk)->filter, len))
+		filter = raw6_sk(sk)->filter;
+		if (len > sizeof filter || copy_to_user(optval, &filter, len))
 			return -EFAULT;
 		return 0;
 	default:
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index e2ea311..6f07106 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -628,12 +628,11 @@ static struct ctl_table ip6_frags_ctl_table[] = {
 
 static int __net_init ip6_frags_ns_sysctl_register(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table = NULL;
 	struct ctl_table_header *hdr;
 
-	table = ip6_frags_ns_ctl_table;
 	if (!net_eq(net, &init_net)) {
-		table = kmemdup(table, sizeof(ip6_frags_ns_ctl_table), GFP_KERNEL);
+		table = kmemdup(ip6_frags_ns_ctl_table, sizeof(ip6_frags_ns_ctl_table), GFP_KERNEL);
 		if (!table)
 			goto err_alloc;
 
@@ -647,9 +646,10 @@ static int __net_init ip6_frags_ns_sysctl_register(struct net *net)
 		/* Don't export sysctls to unprivileged users */
 		if (net->user_ns != &init_user_ns)
 			table[0].procname = NULL;
-	}
+		hdr = register_net_sysctl(net, "net/ipv6", table);
+	} else
+		hdr = register_net_sysctl(net, "net/ipv6", ip6_frags_ns_ctl_table);
 
-	hdr = register_net_sysctl(net, "net/ipv6", table);
 	if (!hdr)
 		goto err_reg;
 
@@ -657,8 +657,7 @@ static int __net_init ip6_frags_ns_sysctl_register(struct net *net)
 	return 0;
 
 err_reg:
-	if (!net_eq(net, &init_net))
-		kfree(table);
+	kfree(table);
 err_alloc:
 	return -ENOMEM;
 }
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 6f32944..03cad65 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -3538,7 +3538,7 @@ struct ctl_table ipv6_route_table_template[] = {
 
 struct ctl_table * __net_init ipv6_route_sysctl_init(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table;
 
 	table = kmemdup(ipv6_route_table_template,
 			sizeof(ipv6_route_table_template),
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 8338430..602490e 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -74,7 +74,7 @@ static void ipip6_tunnel_setup(struct net_device *dev);
 static void ipip6_dev_free(struct net_device *dev);
 static bool check_6rd(struct ip_tunnel *tunnel, const struct in6_addr *v6dst,
 		      __be32 *v4dst);
-static struct rtnl_link_ops sit_link_ops __read_mostly;
+static struct rtnl_link_ops sit_link_ops;
 
 static int sit_net_id __read_mostly;
 struct sit_net {
@@ -1735,7 +1735,7 @@ static void ipip6_dellink(struct net_device *dev, struct list_head *head)
 		unregister_netdevice_queue(dev, head);
 }
 
-static struct rtnl_link_ops sit_link_ops __read_mostly = {
+static struct rtnl_link_ops sit_link_ops = {
 	.kind		= "sit",
 	.maxtype	= IFLA_IPTUN_MAX,
 	.policy		= ipip6_policy,
diff --git a/net/ipv6/sysctl_net_ipv6.c b/net/ipv6/sysctl_net_ipv6.c
index 45243bb..cdb398e 100644
--- a/net/ipv6/sysctl_net_ipv6.c
+++ b/net/ipv6/sysctl_net_ipv6.c
@@ -111,7 +111,7 @@ static struct ctl_table ipv6_rotable[] = {
 
 static int __net_init ipv6_sysctl_net_init(struct net *net)
 {
-	struct ctl_table *ipv6_table;
+	ctl_table_no_const *ipv6_table;
 	struct ctl_table *ipv6_route_table;
 	struct ctl_table *ipv6_icmp_table;
 	int err;
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index f6d7516..8d7090d 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -101,6 +101,10 @@ static void inet6_sk_rx_dst_set(struct sock *sk, const struct sk_buff *skb)
 	}
 }
 
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+extern int grsec_enable_blackhole;
+#endif
+
 static __u32 tcp_v6_init_sequence(const struct sk_buff *skb)
 {
 	return secure_tcpv6_sequence_number(ipv6_hdr(skb)->daddr.s6_addr32,
@@ -1277,6 +1281,9 @@ static int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb)
 	return 0;
 
 reset:
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+	if (!grsec_enable_blackhole)
+#endif
 	tcp_v6_send_reset(sk, skb);
 discard:
 	if (opt_skb)
@@ -1387,12 +1394,20 @@ static int tcp_v6_rcv(struct sk_buff *skb)
 lookup:
 	sk = __inet6_lookup_skb(&tcp_hashinfo, skb, __tcp_hdrlen(th),
 				th->source, th->dest, inet6_iif(skb));
-	if (!sk)
+	if (!sk) {
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+		ret = 1;
+#endif
 		goto no_tcp_socket;
+	}
 
 process:
-	if (sk->sk_state == TCP_TIME_WAIT)
+	if (sk->sk_state == TCP_TIME_WAIT) {
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+		ret = 2;
+#endif
 		goto do_time_wait;
+	}
 
 	if (sk->sk_state == TCP_NEW_SYN_RECV) {
 		struct request_sock *req = inet_reqsk(sk);
@@ -1480,6 +1495,10 @@ csum_error:
 bad_packet:
 		TCP_INC_STATS_BH(net, TCP_MIB_INERRS);
 	} else {
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+		if (!grsec_enable_blackhole || (ret == 1 &&
+		    (skb->dev->flags & IFF_LOOPBACK)))
+#endif
 		tcp_v6_send_reset(NULL, skb);
 	}
 
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index f96831d9..dae9a77 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -78,6 +78,10 @@ static u32 udp6_ehashfn(const struct net *net,
 			       udp_ipv6_hash_secret + net_hash_mix(net));
 }
 
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+extern int grsec_enable_blackhole;
+#endif
+
 static u32 udp6_portaddr_hash(const struct net *net,
 			      const struct in6_addr *addr6,
 			      unsigned int port)
@@ -452,7 +456,7 @@ try_again:
 	if (unlikely(err)) {
 		trace_kfree_skb(skb, udpv6_recvmsg);
 		if (!peeked) {
-			atomic_inc(&sk->sk_drops);
+			atomic_inc_unchecked(&sk->sk_drops);
 			if (is_udp4)
 				UDP_INC_STATS_USER(sock_net(sk),
 						   UDP_MIB_INERRORS,
@@ -718,7 +722,7 @@ csum_error:
 	UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_CSUMERRORS, is_udplite);
 drop:
 	UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, is_udplite);
-	atomic_inc(&sk->sk_drops);
+	atomic_inc_unchecked(&sk->sk_drops);
 	kfree_skb(skb);
 	return -1;
 }
@@ -759,7 +763,7 @@ static void flush_stack(struct sock **stack, unsigned int count,
 		if (likely(!skb1))
 			skb1 = (i == final) ? skb : skb_clone(skb, GFP_ATOMIC);
 		if (!skb1) {
-			atomic_inc(&sk->sk_drops);
+			atomic_inc_unchecked(&sk->sk_drops);
 			UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_RCVBUFERRORS,
 					  IS_UDPLITE(sk));
 			UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS,
@@ -941,6 +945,9 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
 		goto csum_error;
 
 	UDP6_INC_STATS_BH(net, UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE);
+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
+	if (!grsec_enable_blackhole || (skb->dev->flags & IFF_LOOPBACK))
+#endif
 	icmpv6_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_PORT_UNREACH, 0);
 
 	kfree_skb(skb);
diff --git a/net/ipv6/xfrm6_mode_beet.c b/net/ipv6/xfrm6_mode_beet.c
index 1e205c3..d71b846 100644
--- a/net/ipv6/xfrm6_mode_beet.c
+++ b/net/ipv6/xfrm6_mode_beet.c
@@ -37,7 +37,7 @@ static void xfrm6_beet_make_header(struct sk_buff *skb)
  *
  * The top IP header will be constructed per draft-nikander-esp-beet-mode-06.txt.
  */
-static int xfrm6_beet_output(struct xfrm_state *x, struct sk_buff *skb)
+static int __intentional_overflow(0) xfrm6_beet_output(struct xfrm_state *x, struct sk_buff *skb)
 {
 	struct ipv6hdr *top_iph;
 	struct ip_beet_phdr *ph;
diff --git a/net/ipv6/xfrm6_mode_transport.c b/net/ipv6/xfrm6_mode_transport.c
index 4e34410..232827a 100644
--- a/net/ipv6/xfrm6_mode_transport.c
+++ b/net/ipv6/xfrm6_mode_transport.c
@@ -19,7 +19,7 @@
  * The IP header and mutable extension headers will be moved forward to make
  * space for the encapsulation header.
  */
-static int xfrm6_transport_output(struct xfrm_state *x, struct sk_buff *skb)
+static int __intentional_overflow(0) xfrm6_transport_output(struct xfrm_state *x, struct sk_buff *skb)
 {
 	struct ipv6hdr *iph;
 	u8 *prevhdr;
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index c074771..45ded9b 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -216,11 +216,11 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl, int reverse)
 	}
 }
 
-static inline int xfrm6_garbage_collect(struct dst_ops *ops)
+static int xfrm6_garbage_collect(struct dst_ops *ops)
 {
 	struct net *net = container_of(ops, struct net, xfrm.xfrm6_dst_ops);
 
-	xfrm6_policy_afinfo.garbage_collect(net);
+	xfrm_garbage_collect_deferred(net);
 	return dst_entries_get_fast(ops) > ops->gc_thresh * 2;
 }
 
@@ -327,19 +327,19 @@ static struct ctl_table xfrm6_policy_table[] = {
 
 static int __net_init xfrm6_net_sysctl_init(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table = NULL;
 	struct ctl_table_header *hdr;
 
-	table = xfrm6_policy_table;
 	if (!net_eq(net, &init_net)) {
-		table = kmemdup(table, sizeof(xfrm6_policy_table), GFP_KERNEL);
+		table = kmemdup(xfrm6_policy_table, sizeof(xfrm6_policy_table), GFP_KERNEL);
 		if (!table)
 			goto err_alloc;
 
 		table[0].data = &net->xfrm.xfrm6_dst_ops.gc_thresh;
-	}
+		hdr = register_net_sysctl(net, "net/ipv6", table);
+	} else
+		hdr = register_net_sysctl(net, "net/ipv6", xfrm6_policy_table);
 
-	hdr = register_net_sysctl(net, "net/ipv6", table);
 	if (!hdr)
 		goto err_reg;
 
@@ -347,8 +347,7 @@ static int __net_init xfrm6_net_sysctl_init(struct net *net)
 	return 0;
 
 err_reg:
-	if (!net_eq(net, &init_net))
-		kfree(table);
+	kfree(table);
 err_alloc:
 	return -ENOMEM;
 }
diff --git a/net/ipx/ipx_proc.c b/net/ipx/ipx_proc.c
index c1d247e..9e5949d 100644
--- a/net/ipx/ipx_proc.c
+++ b/net/ipx/ipx_proc.c
@@ -289,7 +289,7 @@ int __init ipx_proc_init(void)
 	struct proc_dir_entry *p;
 	int rc = -ENOMEM;
 
-	ipx_proc_dir = proc_mkdir("ipx", init_net.proc_net);
+	ipx_proc_dir = proc_mkdir_restrict("ipx", init_net.proc_net);
 
 	if (!ipx_proc_dir)
 		goto out;
diff --git a/net/irda/discovery.c b/net/irda/discovery.c
index 364d70a..c503f3f 100644
--- a/net/irda/discovery.c
+++ b/net/irda/discovery.c
@@ -136,7 +136,7 @@ void irlmp_add_discovery_log(hashbin_t *cachelog, hashbin_t *log)
 	}
 
 	/* Delete the now empty log */
-	hashbin_delete(log, (FREE_FUNC) kfree);
+	hashbin_delete(log, irlmp_kfree);
 }
 
 /*
diff --git a/net/irda/ircomm/ircomm_core.c b/net/irda/ircomm/ircomm_core.c
index 3af2195..a38e804 100644
--- a/net/irda/ircomm/ircomm_core.c
+++ b/net/irda/ircomm/ircomm_core.c
@@ -46,7 +46,7 @@
 #include <net/irda/ircomm_param.h>
 #include <net/irda/ircomm_core.h>
 
-static int __ircomm_close(struct ircomm_cb *self);
+static void __ircomm_close(void *_self);
 static void ircomm_control_indication(struct ircomm_cb *self,
 				      struct sk_buff *skb, int clen);
 
@@ -91,7 +91,7 @@ static int __init ircomm_init(void)
 
 static void __exit ircomm_cleanup(void)
 {
-	hashbin_delete(ircomm, (FREE_FUNC) __ircomm_close);
+	hashbin_delete(ircomm, __ircomm_close);
 
 #ifdef CONFIG_PROC_FS
 	remove_proc_entry("ircomm", proc_irda);
@@ -151,8 +151,10 @@ EXPORT_SYMBOL(ircomm_open);
  *    Remove IrCOMM instance
  *
  */
-static int __ircomm_close(struct ircomm_cb *self)
+static void __ircomm_close(void *_self)
 {
+	struct ircomm_cb *self = _self;
+
 	/* Disconnect link if any */
 	ircomm_do_event(self, IRCOMM_DISCONNECT_REQUEST, NULL, NULL);
 
@@ -170,8 +172,6 @@ static int __ircomm_close(struct ircomm_cb *self)
 	self->magic = 0;
 
 	kfree(self);
-
-	return 0;
 }
 
 /*
@@ -191,7 +191,8 @@ int ircomm_close(struct ircomm_cb *self)
 
 	IRDA_ASSERT(entry == self, return -1;);
 
-	return __ircomm_close(self);
+	__ircomm_close(self);
+	return 0;
 }
 
 EXPORT_SYMBOL(ircomm_close);
diff --git a/net/irda/ircomm/ircomm_tty.c b/net/irda/ircomm/ircomm_tty.c
index da126ee..c75b685 100644
--- a/net/irda/ircomm/ircomm_tty.c
+++ b/net/irda/ircomm/ircomm_tty.c
@@ -172,8 +172,10 @@ static int __init ircomm_tty_init(void)
 	return 0;
 }
 
-static void __exit __ircomm_tty_cleanup(struct ircomm_tty_cb *self)
+static void __exit __ircomm_tty_cleanup(void *_self)
 {
+	struct ircomm_tty_cb *self = _self;
+
 	IRDA_ASSERT(self != NULL, return;);
 	IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
 
@@ -201,7 +203,7 @@ static void __exit ircomm_tty_cleanup(void)
 		return;
 	}
 
-	hashbin_delete(ircomm_tty, (FREE_FUNC) __ircomm_tty_cleanup);
+	hashbin_delete(ircomm_tty, __ircomm_tty_cleanup);
 	put_tty_driver(driver);
 }
 
@@ -310,10 +312,10 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self,
 	add_wait_queue(&port->open_wait, &wait);
 
 	pr_debug("%s(%d):block_til_ready before block on %s open_count=%d\n",
-		 __FILE__, __LINE__, tty->driver->name, port->count);
+		 __FILE__, __LINE__, tty->driver->name, atomic_read(&port->count));
 
 	spin_lock_irqsave(&port->lock, flags);
-	port->count--;
+	atomic_dec(&port->count);
 	port->blocked_open++;
 	spin_unlock_irqrestore(&port->lock, flags);
 
@@ -347,7 +349,7 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self,
 		}
 
 		pr_debug("%s(%d):block_til_ready blocking on %s open_count=%d\n",
-			 __FILE__, __LINE__, tty->driver->name, port->count);
+			 __FILE__, __LINE__, tty->driver->name, atomic_read(&port->count));
 
 		schedule();
 	}
@@ -357,12 +359,12 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self,
 
 	spin_lock_irqsave(&port->lock, flags);
 	if (!tty_hung_up_p(filp))
-		port->count++;
+		atomic_inc(&port->count);
 	port->blocked_open--;
 	spin_unlock_irqrestore(&port->lock, flags);
 
 	pr_debug("%s(%d):block_til_ready after blocking on %s open_count=%d\n",
-		 __FILE__, __LINE__, tty->driver->name, port->count);
+		 __FILE__, __LINE__, tty->driver->name, atomic_read(&port->count));
 
 	if (!retval)
 		port->flags |= ASYNC_NORMAL_ACTIVE;
@@ -432,12 +434,12 @@ static int ircomm_tty_open(struct tty_struct *tty, struct file *filp)
 
 	/* ++ is not atomic, so this should be protected - Jean II */
 	spin_lock_irqsave(&self->port.lock, flags);
-	self->port.count++;
+	atomic_inc(&self->port.count);
 	spin_unlock_irqrestore(&self->port.lock, flags);
 	tty_port_tty_set(&self->port, tty);
 
 	pr_debug("%s(), %s%d, count = %d\n", __func__ , tty->driver->name,
-		 self->line, self->port.count);
+		 self->line, atomic_read(&self->port.count));
 
 	/* Not really used by us, but lets do it anyway */
 	self->port.low_latency = (self->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
@@ -931,7 +933,7 @@ static void ircomm_tty_hangup(struct tty_struct *tty)
 		tty_kref_put(port->tty);
 	}
 	port->tty = NULL;
-	port->count = 0;
+	atomic_set(&port->count, 0);
 	spin_unlock_irqrestore(&port->lock, flags);
 
 	wake_up_interruptible(&port->open_wait);
@@ -1274,7 +1276,7 @@ static void ircomm_tty_line_info(struct ircomm_tty_cb *self, struct seq_file *m)
 	seq_putc(m, '\n');
 
 	seq_printf(m, "Role: %s\n", self->client ? "client" : "server");
-	seq_printf(m, "Open count: %d\n", self->port.count);
+	seq_printf(m, "Open count: %d\n", atomic_read(&self->port.count));
 	seq_printf(m, "Max data size: %d\n", self->max_data_size);
 	seq_printf(m, "Max header size: %d\n", self->max_header_size);
 
diff --git a/net/irda/ircomm/ircomm_tty_attach.c b/net/irda/ircomm/ircomm_tty_attach.c
index 61137f8..465b9ea 100644
--- a/net/irda/ircomm/ircomm_tty_attach.c
+++ b/net/irda/ircomm/ircomm_tty_attach.c
@@ -52,7 +52,7 @@ static void ircomm_tty_getvalue_confirm(int result, __u16 obj_id,
 					struct ias_value *value, void *priv);
 static void ircomm_tty_start_watchdog_timer(struct ircomm_tty_cb *self,
 					    int timeout);
-static void ircomm_tty_watchdog_timer_expired(void *data);
+static void ircomm_tty_watchdog_timer_expired(unsigned long data);
 
 static int ircomm_tty_state_idle(struct ircomm_tty_cb *self,
 				 IRCOMM_TTY_EVENT event,
@@ -597,7 +597,7 @@ static void ircomm_tty_start_watchdog_timer(struct ircomm_tty_cb *self,
  *    Called when the connect procedure have taken to much time.
  *
  */
-static void ircomm_tty_watchdog_timer_expired(void *data)
+static void ircomm_tty_watchdog_timer_expired(unsigned long data)
 {
 	struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) data;
 
diff --git a/net/irda/irda_device.c b/net/irda/irda_device.c
index 8567366..7c8aa51 100644
--- a/net/irda/irda_device.c
+++ b/net/irda/irda_device.c
@@ -52,12 +52,12 @@
 #include <net/irda/timer.h>
 #include <net/irda/wrapper.h>
 
-static void __irda_task_delete(struct irda_task *task);
+static void __irda_task_delete(void *_task);
 
 static hashbin_t *dongles = NULL;
 static hashbin_t *tasks = NULL;
 
-static void irda_task_timer_expired(void *data);
+static void irda_task_timer_expired(unsigned long data);
 
 int __init irda_device_init( void)
 {
@@ -90,7 +90,7 @@ static void leftover_dongle(void *arg)
 
 void irda_device_cleanup(void)
 {
-	hashbin_delete(tasks, (FREE_FUNC) __irda_task_delete);
+	hashbin_delete(tasks, __irda_task_delete);
 
 	hashbin_delete(dongles, leftover_dongle);
 }
@@ -159,8 +159,10 @@ int irda_device_is_receiving(struct net_device *dev)
 	return req.ifr_receiving;
 }
 
-static void __irda_task_delete(struct irda_task *task)
+static void __irda_task_delete(void *_task)
 {
+	struct irda_task *task = _task;
+
 	del_timer(&task->timer);
 
 	kfree(task);
@@ -249,11 +251,11 @@ static int irda_task_kick(struct irda_task *task)
  *    Task time has expired. We now try to execute task (again), and restart
  *    the timer if the task has not finished yet
  */
-static void irda_task_timer_expired(void *data)
+static void irda_task_timer_expired(unsigned long data)
 {
 	struct irda_task *task;
 
-	task = data;
+	task = (struct irda_task *)data;
 
 	irda_task_kick(task);
 }
diff --git a/net/irda/iriap.c b/net/irda/iriap.c
index 4a7ae32a..bfe8e78 100644
--- a/net/irda/iriap.c
+++ b/net/irda/iriap.c
@@ -61,7 +61,7 @@ static const char *const ias_charset_types[] __maybe_unused = {
 static hashbin_t *iriap = NULL;
 static void *service_handle;
 
-static void __iriap_close(struct iriap_cb *self);
+static void __iriap_close(void *_self);
 static int iriap_register_lsap(struct iriap_cb *self, __u8 slsap_sel, int mode);
 static void iriap_disconnect_indication(void *instance, void *sap,
 					LM_REASON reason, struct sk_buff *skb);
@@ -76,7 +76,7 @@ static void iriap_connect_confirm(void *instance, void *sap,
 static int iriap_data_indication(void *instance, void *sap,
 				 struct sk_buff *skb);
 
-static void iriap_watchdog_timer_expired(void *data);
+static void iriap_watchdog_timer_expired(unsigned long data);
 
 static inline void iriap_start_watchdog_timer(struct iriap_cb *self,
 					      int timeout)
@@ -161,8 +161,8 @@ void iriap_cleanup(void)
 {
 	irlmp_unregister_service(service_handle);
 
-	hashbin_delete(iriap, (FREE_FUNC) __iriap_close);
-	hashbin_delete(irias_objects, (FREE_FUNC) __irias_delete_object);
+	hashbin_delete(iriap, __iriap_close);
+	hashbin_delete(irias_objects, __irias_delete_object);
 }
 
 /*
@@ -215,8 +215,10 @@ EXPORT_SYMBOL(iriap_open);
  *    Removes (deallocates) the IrIAP instance
  *
  */
-static void __iriap_close(struct iriap_cb *self)
+static void __iriap_close(void *_self)
 {
+	struct iriap_cb *self = _self;
+
 	IRDA_ASSERT(self != NULL, return;);
 	IRDA_ASSERT(self->magic == IAS_MAGIC, return;);
 
@@ -942,7 +944,7 @@ void iriap_call_indication(struct iriap_cb *self, struct sk_buff *skb)
  *    Query has taken too long time, so abort
  *
  */
-static void iriap_watchdog_timer_expired(void *data)
+static void iriap_watchdog_timer_expired(unsigned long data)
 {
 	struct iriap_cb *self = (struct iriap_cb *) data;
 
diff --git a/net/irda/irias_object.c b/net/irda/irias_object.c
index 53b86d0..5b884f3 100644
--- a/net/irda/irias_object.c
+++ b/net/irda/irias_object.c
@@ -88,8 +88,10 @@ EXPORT_SYMBOL(irias_new_object);
  *    Delete given attribute and deallocate all its memory
  *
  */
-static void __irias_delete_attrib(struct ias_attrib *attrib)
+static void __irias_delete_attrib(void *_attrib)
 {
+	struct ias_attrib *attrib = _attrib;
+
 	IRDA_ASSERT(attrib != NULL, return;);
 	IRDA_ASSERT(attrib->magic == IAS_ATTRIB_MAGIC, return;);
 
@@ -101,14 +103,16 @@ static void __irias_delete_attrib(struct ias_attrib *attrib)
 	kfree(attrib);
 }
 
-void __irias_delete_object(struct ias_object *obj)
+void __irias_delete_object(void *_obj)
 {
+	struct ias_object *obj = _obj;
+
 	IRDA_ASSERT(obj != NULL, return;);
 	IRDA_ASSERT(obj->magic == IAS_OBJECT_MAGIC, return;);
 
 	kfree(obj->name);
 
-	hashbin_delete(obj->attribs, (FREE_FUNC) __irias_delete_attrib);
+	hashbin_delete(obj->attribs, __irias_delete_attrib);
 
 	obj->magic = ~IAS_OBJECT_MAGIC;
 
diff --git a/net/irda/irlan/irlan_client.c b/net/irda/irlan/irlan_client.c
index c5837a4..518b358 100644
--- a/net/irda/irlan/irlan_client.c
+++ b/net/irda/irlan/irlan_client.c
@@ -68,7 +68,7 @@ static void irlan_check_response_param(struct irlan_cb *self, char *param,
 				       char *value, int val_len);
 static void irlan_client_open_ctrl_tsap(struct irlan_cb *self);
 
-static void irlan_client_kick_timer_expired(void *data)
+static void irlan_client_kick_timer_expired(unsigned long data)
 {
 	struct irlan_cb *self = (struct irlan_cb *) data;
 
diff --git a/net/irda/irlap.c b/net/irda/irlap.c
index 1cde711..d05a5fb 100644
--- a/net/irda/irlap.c
+++ b/net/irda/irlap.c
@@ -56,7 +56,7 @@ int sysctl_slot_timeout = SLOT_TIMEOUT * 1000 / HZ;
 int sysctl_warn_noreply_time = 3;
 
 extern void irlap_queue_xmit(struct irlap_cb *self, struct sk_buff *skb);
-static void __irlap_close(struct irlap_cb *self);
+static void __irlap_close(void *_self);
 static void irlap_init_qos_capabilities(struct irlap_cb *self,
 					struct qos_info *qos_user);
 
@@ -95,7 +95,7 @@ void irlap_cleanup(void)
 {
 	IRDA_ASSERT(irlap != NULL, return;);
 
-	hashbin_delete(irlap, (FREE_FUNC) __irlap_close);
+	hashbin_delete(irlap, __irlap_close);
 }
 
 /*
@@ -177,8 +177,10 @@ EXPORT_SYMBOL(irlap_open);
  *    Remove IrLAP and all allocated memory. Stop any pending timers.
  *
  */
-static void __irlap_close(struct irlap_cb *self)
+static void __irlap_close(void *_self)
 {
+	struct irlap_cb *self = _self;
+
 	IRDA_ASSERT(self != NULL, return;);
 	IRDA_ASSERT(self->magic == LAP_MAGIC, return;);
 
@@ -482,6 +484,11 @@ void irlap_disconnect_indication(struct irlap_cb *self, LAP_REASON reason)
  *    Start one single discovery operation.
  *
  */
+static void irlap_kfree(void *arg)
+{
+	kfree(arg);
+}
+
 void irlap_discovery_request(struct irlap_cb *self, discovery_t *discovery)
 {
 	struct irlap_info info;
@@ -513,7 +520,7 @@ void irlap_discovery_request(struct irlap_cb *self, discovery_t *discovery)
 	/* Check if last discovery request finished in time, or if
 	 * it was aborted due to the media busy flag. */
 	if (self->discovery_log != NULL) {
-		hashbin_delete(self->discovery_log, (FREE_FUNC) kfree);
+		hashbin_delete(self->discovery_log, irlap_kfree);
 		self->discovery_log = NULL;
 	}
 
diff --git a/net/irda/irlap_event.c b/net/irda/irlap_event.c
index 0e1b4d7..7e39b12 100644
--- a/net/irda/irlap_event.c
+++ b/net/irda/irlap_event.c
@@ -163,7 +163,7 @@ static int (*state[])(struct irlap_cb *self, IRLAP_EVENT event,
  *    Poll timer has expired. Normally we must now send a RR frame to the
  *    remote device
  */
-static void irlap_poll_timer_expired(void *data)
+static void irlap_poll_timer_expired(unsigned long data)
 {
 	struct irlap_cb *self = (struct irlap_cb *) data;
 
diff --git a/net/irda/irlmp.c b/net/irda/irlmp.c
index 4396459..cbf44c2 100644
--- a/net/irda/irlmp.c
+++ b/net/irda/irlmp.c
@@ -125,6 +125,11 @@ int __init irlmp_init(void)
  *    Remove IrLMP layer
  *
  */
+void irlmp_kfree(void *arg)
+{
+	kfree(arg);
+}
+
 void irlmp_cleanup(void)
 {
 	/* Check for main structure */
@@ -133,11 +138,11 @@ void irlmp_cleanup(void)
 
 	del_timer(&irlmp->discovery_timer);
 
-	hashbin_delete(irlmp->links, (FREE_FUNC) kfree);
-	hashbin_delete(irlmp->unconnected_lsaps, (FREE_FUNC) kfree);
-	hashbin_delete(irlmp->clients, (FREE_FUNC) kfree);
-	hashbin_delete(irlmp->services, (FREE_FUNC) kfree);
-	hashbin_delete(irlmp->cachelog, (FREE_FUNC) kfree);
+	hashbin_delete(irlmp->links, irlmp_kfree);
+	hashbin_delete(irlmp->unconnected_lsaps, irlmp_kfree);
+	hashbin_delete(irlmp->clients, irlmp_kfree);
+	hashbin_delete(irlmp->services, irlmp_kfree);
+	hashbin_delete(irlmp->cachelog, irlmp_kfree);
 
 	/* De-allocate main structure */
 	kfree(irlmp);
@@ -204,8 +209,10 @@ EXPORT_SYMBOL(irlmp_open_lsap);
  *
  *    Remove an instance of LSAP
  */
-static void __irlmp_close_lsap(struct lsap_cb *self)
+static void __irlmp_close_lsap(void *_self)
 {
+	struct lsap_cb *self = _self;
+
 	IRDA_ASSERT(self != NULL, return;);
 	IRDA_ASSERT(self->magic == LMP_LSAP_MAGIC, return;);
 
@@ -354,7 +361,7 @@ void irlmp_unregister_link(__u32 saddr)
 		/* Final cleanup */
 		del_timer(&link->idle_timer);
 		link->magic = 0;
-		hashbin_delete(link->lsaps, (FREE_FUNC) __irlmp_close_lsap);
+		hashbin_delete(link->lsaps, __irlmp_close_lsap);
 		kfree(link);
 	}
 }
diff --git a/net/irda/irlmp_event.c b/net/irda/irlmp_event.c
index e306cf2..e6e0e90 100644
--- a/net/irda/irlmp_event.c
+++ b/net/irda/irlmp_event.c
@@ -165,7 +165,7 @@ void irlmp_do_lap_event(struct lap_cb *self, IRLMP_EVENT event,
 	(*lap_state[self->lap_state]) (self, event, skb);
 }
 
-void irlmp_discovery_timer_expired(void *data)
+void irlmp_discovery_timer_expired(unsigned long data)
 {
 	/* We always cleanup the log (active & passive discovery) */
 	irlmp_do_expiry();
@@ -176,7 +176,7 @@ void irlmp_discovery_timer_expired(void *data)
 	irlmp_start_discovery_timer(irlmp, sysctl_discovery_timeout * HZ);
 }
 
-void irlmp_watchdog_timer_expired(void *data)
+void irlmp_watchdog_timer_expired(unsigned long data)
 {
 	struct lsap_cb *self = (struct lsap_cb *) data;
 
@@ -186,7 +186,7 @@ void irlmp_watchdog_timer_expired(void *data)
 	irlmp_do_lsap_event(self, LM_WATCHDOG_TIMEOUT, NULL);
 }
 
-void irlmp_idle_timer_expired(void *data)
+void irlmp_idle_timer_expired(unsigned long data)
 {
 	struct lap_cb *self = (struct lap_cb *) data;
 
diff --git a/net/irda/irnet/irnet.h b/net/irda/irnet/irnet.h
index 8d65bb9..677364b 100644
--- a/net/irda/irnet/irnet.h
+++ b/net/irda/irnet/irnet.h
@@ -511,7 +511,7 @@ typedef struct irnet_ctrl_channel
 /* -------------------------- IRDA PART -------------------------- */
 int irda_irnet_create(irnet_socket *);	/* Initialise an IrNET socket */
 int irda_irnet_connect(irnet_socket *);	/* Try to connect over IrDA */
-void irda_irnet_destroy(irnet_socket *);	/* Teardown an IrNET socket */
+void irda_irnet_destroy(void *);	/* Teardown an IrNET socket */
 int irda_irnet_init(void);		/* Initialise IrDA part of IrNET */
 void irda_irnet_cleanup(void);		/* Teardown IrDA part of IrNET */
 
diff --git a/net/irda/irnet/irnet_irda.c b/net/irda/irnet/irnet_irda.c
index 7f17a80..98575e1 100644
--- a/net/irda/irnet/irnet_irda.c
+++ b/net/irda/irnet/irnet_irda.c
@@ -613,8 +613,10 @@ irda_irnet_connect(irnet_socket *	self)
  * Note : this need to be called from a process context.
  */
 void
-irda_irnet_destroy(irnet_socket *	self)
+irda_irnet_destroy(void *_self)
 {
+  irnet_socket *self = _self;
+
   DENTER(IRDA_SOCK_TRACE, "(self=0x%p)\n", self);
   if(self == NULL)
     return;
@@ -1879,7 +1881,7 @@ irda_irnet_cleanup(void)
   irnet_destroy_server();
 
   /* Remove all instances of IrNET socket still present */
-  hashbin_delete(irnet_server.list, (FREE_FUNC) irda_irnet_destroy);
+  hashbin_delete(irnet_server.list, irda_irnet_destroy);
 
   DEXIT(MODULE_TRACE, "\n");
 }
diff --git a/net/irda/irproc.c b/net/irda/irproc.c
index b9ac598..f88cc56 100644
--- a/net/irda/irproc.c
+++ b/net/irda/irproc.c
@@ -66,7 +66,7 @@ void __init irda_proc_register(void)
 {
 	int i;
 
-	proc_irda = proc_mkdir("irda", init_net.proc_net);
+	proc_irda = proc_mkdir_restrict("irda", init_net.proc_net);
 	if (proc_irda == NULL)
 		return;
 
diff --git a/net/irda/irttp.c b/net/irda/irttp.c
index b6ab41d..e2263ce 100644
--- a/net/irda/irttp.c
+++ b/net/irda/irttp.c
@@ -42,7 +42,7 @@
 
 static struct irttp_cb *irttp;
 
-static void __irttp_close_tsap(struct tsap_cb *self);
+static void __irttp_close_tsap(void *_self);
 
 static int irttp_data_indication(void *instance, void *sap,
 				 struct sk_buff *skb);
@@ -121,7 +121,7 @@ void irttp_cleanup(void)
 	/*
 	 *  Delete hashbin and close all TSAP instances in it
 	 */
-	hashbin_delete(irttp->tsaps, (FREE_FUNC) __irttp_close_tsap);
+	hashbin_delete(irttp->tsaps, __irttp_close_tsap);
 
 	irttp->magic = 0;
 
@@ -469,8 +469,10 @@ EXPORT_SYMBOL(irttp_open_tsap);
  *    deallocation of the TSAP, and resetting of the TSAPs values;
  *
  */
-static void __irttp_close_tsap(struct tsap_cb *self)
+static void __irttp_close_tsap(void *_self)
 {
+	struct tsap_cb *self = _self;
+
 	/* First make sure we're connected. */
 	IRDA_ASSERT(self != NULL, return;);
 	IRDA_ASSERT(self->magic == TTP_TSAP_MAGIC, return;);
diff --git a/net/irda/timer.c b/net/irda/timer.c
index f2280f7..c0a006f 100644
--- a/net/irda/timer.c
+++ b/net/irda/timer.c
@@ -34,12 +34,12 @@
 
 extern int  sysctl_slot_timeout;
 
-static void irlap_slot_timer_expired(void* data);
-static void irlap_query_timer_expired(void* data);
-static void irlap_final_timer_expired(void* data);
-static void irlap_wd_timer_expired(void* data);
-static void irlap_backoff_timer_expired(void* data);
-static void irlap_media_busy_expired(void* data);
+static void irlap_slot_timer_expired(unsigned long data);
+static void irlap_query_timer_expired(unsigned long data);
+static void irlap_final_timer_expired(unsigned long data);
+static void irlap_wd_timer_expired(unsigned long data);
+static void irlap_backoff_timer_expired(unsigned long data);
+static void irlap_media_busy_expired(unsigned long data);
 
 void irlap_start_slot_timer(struct irlap_cb *self, int timeout)
 {
@@ -138,7 +138,7 @@ void irlmp_stop_idle_timer(struct lap_cb *self)
  *    IrLAP slot timer has expired
  *
  */
-static void irlap_slot_timer_expired(void *data)
+static void irlap_slot_timer_expired(unsigned long data)
 {
 	struct irlap_cb *self = (struct irlap_cb *) data;
 
@@ -154,7 +154,7 @@ static void irlap_slot_timer_expired(void *data)
  *    IrLAP query timer has expired
  *
  */
-static void irlap_query_timer_expired(void *data)
+static void irlap_query_timer_expired(unsigned long data)
 {
 	struct irlap_cb *self = (struct irlap_cb *) data;
 
@@ -170,7 +170,7 @@ static void irlap_query_timer_expired(void *data)
  *
  *
  */
-static void irlap_final_timer_expired(void *data)
+static void irlap_final_timer_expired(unsigned long data)
 {
 	struct irlap_cb *self = (struct irlap_cb *) data;
 
@@ -186,7 +186,7 @@ static void irlap_final_timer_expired(void *data)
  *
  *
  */
-static void irlap_wd_timer_expired(void *data)
+static void irlap_wd_timer_expired(unsigned long data)
 {
 	struct irlap_cb *self = (struct irlap_cb *) data;
 
@@ -202,7 +202,7 @@ static void irlap_wd_timer_expired(void *data)
  *
  *
  */
-static void irlap_backoff_timer_expired(void *data)
+static void irlap_backoff_timer_expired(unsigned long data)
 {
 	struct irlap_cb *self = (struct irlap_cb *) data;
 
@@ -218,7 +218,7 @@ static void irlap_backoff_timer_expired(void *data)
  *
  *
  */
-static void irlap_media_busy_expired(void *data)
+static void irlap_media_busy_expired(unsigned long data)
 {
 	struct irlap_cb *self = (struct irlap_cb *) data;
 
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index fc3598a..03a184e3 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -685,10 +685,10 @@ static void __iucv_auto_name(struct iucv_sock *iucv)
 {
 	char name[12];
 
-	sprintf(name, "%08x", atomic_inc_return(&iucv_sk_list.autobind_name));
+	sprintf(name, "%08x", atomic_inc_return_unchecked(&iucv_sk_list.autobind_name));
 	while (__iucv_get_sock_by_name(name)) {
 		sprintf(name, "%08x",
-			atomic_inc_return(&iucv_sk_list.autobind_name));
+			atomic_inc_return_unchecked(&iucv_sk_list.autobind_name));
 	}
 	memcpy(iucv->src_name, name, 8);
 }
diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c
index 7eaa000..2fa7f35 100644
--- a/net/iucv/iucv.c
+++ b/net/iucv/iucv.c
@@ -702,7 +702,7 @@ static int iucv_cpu_notify(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __refdata iucv_cpu_notifier = {
+static struct notifier_block iucv_cpu_notifier = {
 	.notifier_call = iucv_cpu_notify,
 };
 
diff --git a/net/key/af_key.c b/net/key/af_key.c
index f9c9ecb..060751e 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -3050,10 +3050,10 @@ static int pfkey_send_policy_notify(struct xfrm_policy *xp, int dir, const struc
 static u32 get_acqseq(void)
 {
 	u32 res;
-	static atomic_t acqseq;
+	static atomic_unchecked_t acqseq;
 
 	do {
-		res = atomic_inc_return(&acqseq);
+		res = atomic_inc_return_unchecked(&acqseq);
 	} while (!res);
 	return res;
 }
diff --git a/net/l2tp/l2tp_eth.c b/net/l2tp/l2tp_eth.c
index e253c26..eec4c65 100644
--- a/net/l2tp/l2tp_eth.c
+++ b/net/l2tp/l2tp_eth.c
@@ -42,12 +42,12 @@ struct l2tp_eth {
 	struct sock		*tunnel_sock;
 	struct l2tp_session	*session;
 	struct list_head	list;
-	atomic_long_t		tx_bytes;
-	atomic_long_t		tx_packets;
-	atomic_long_t		tx_dropped;
-	atomic_long_t		rx_bytes;
-	atomic_long_t		rx_packets;
-	atomic_long_t		rx_errors;
+	atomic_long_unchecked_t	tx_bytes;
+	atomic_long_unchecked_t	tx_packets;
+	atomic_long_unchecked_t	tx_dropped;
+	atomic_long_unchecked_t	rx_bytes;
+	atomic_long_unchecked_t	rx_packets;
+	atomic_long_unchecked_t	rx_errors;
 };
 
 /* via l2tp_session_priv() */
@@ -90,7 +90,7 @@ static void l2tp_eth_dev_uninit(struct net_device *dev)
 	dev_put(dev);
 }
 
-static int l2tp_eth_dev_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t l2tp_eth_dev_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct l2tp_eth *priv = netdev_priv(dev);
 	struct l2tp_session *session = priv->session;
@@ -98,10 +98,10 @@ static int l2tp_eth_dev_xmit(struct sk_buff *skb, struct net_device *dev)
 	int ret = l2tp_xmit_skb(session, skb, session->hdr_len);
 
 	if (likely(ret == NET_XMIT_SUCCESS)) {
-		atomic_long_add(len, &priv->tx_bytes);
-		atomic_long_inc(&priv->tx_packets);
+		atomic_long_add_unchecked(len, &priv->tx_bytes);
+		atomic_long_inc_unchecked(&priv->tx_packets);
 	} else {
-		atomic_long_inc(&priv->tx_dropped);
+		atomic_long_inc_unchecked(&priv->tx_dropped);
 	}
 	return NETDEV_TX_OK;
 }
@@ -111,12 +111,12 @@ static struct rtnl_link_stats64 *l2tp_eth_get_stats64(struct net_device *dev,
 {
 	struct l2tp_eth *priv = netdev_priv(dev);
 
-	stats->tx_bytes   = atomic_long_read(&priv->tx_bytes);
-	stats->tx_packets = atomic_long_read(&priv->tx_packets);
-	stats->tx_dropped = atomic_long_read(&priv->tx_dropped);
-	stats->rx_bytes   = atomic_long_read(&priv->rx_bytes);
-	stats->rx_packets = atomic_long_read(&priv->rx_packets);
-	stats->rx_errors  = atomic_long_read(&priv->rx_errors);
+	stats->tx_bytes   = atomic_long_read_unchecked(&priv->tx_bytes);
+	stats->tx_packets = atomic_long_read_unchecked(&priv->tx_packets);
+	stats->tx_dropped = atomic_long_read_unchecked(&priv->tx_dropped);
+	stats->rx_bytes   = atomic_long_read_unchecked(&priv->rx_bytes);
+	stats->rx_packets = atomic_long_read_unchecked(&priv->rx_packets);
+	stats->rx_errors  = atomic_long_read_unchecked(&priv->rx_errors);
 	return stats;
 }
 
@@ -167,15 +167,15 @@ static void l2tp_eth_dev_recv(struct l2tp_session *session, struct sk_buff *skb,
 	nf_reset(skb);
 
 	if (dev_forward_skb(dev, skb) == NET_RX_SUCCESS) {
-		atomic_long_inc(&priv->rx_packets);
-		atomic_long_add(data_len, &priv->rx_bytes);
+		atomic_long_inc_unchecked(&priv->rx_packets);
+		atomic_long_add_unchecked(data_len, &priv->rx_bytes);
 	} else {
-		atomic_long_inc(&priv->rx_errors);
+		atomic_long_inc_unchecked(&priv->rx_errors);
 	}
 	return;
 
 error:
-	atomic_long_inc(&priv->rx_errors);
+	atomic_long_inc_unchecked(&priv->rx_errors);
 	kfree_skb(skb);
 }
 
diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c
index 42de4cc..f00aa3e 100644
--- a/net/l2tp/l2tp_ip.c
+++ b/net/l2tp/l2tp_ip.c
@@ -610,7 +610,7 @@ static struct inet_protosw l2tp_ip_protosw = {
 	.ops		= &l2tp_ip_ops,
 };
 
-static struct net_protocol l2tp_ip_protocol __read_mostly = {
+static const struct net_protocol l2tp_ip_protocol = {
 	.handler	= l2tp_ip_recv,
 	.netns_ok	= 1,
 };
diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c
index cd47990..a979945 100644
--- a/net/l2tp/l2tp_ip6.c
+++ b/net/l2tp/l2tp_ip6.c
@@ -762,7 +762,7 @@ static struct inet_protosw l2tp_ip6_protosw = {
 	.ops		= &l2tp_ip6_ops,
 };
 
-static struct inet6_protocol l2tp_ip6_protocol __read_mostly = {
+static const struct inet6_protocol l2tp_ip6_protocol = {
 	.handler	= l2tp_ip6_recv,
 };
 
diff --git a/net/llc/llc_proc.c b/net/llc/llc_proc.c
index 1a3c7e0..80f8b0c 100644
--- a/net/llc/llc_proc.c
+++ b/net/llc/llc_proc.c
@@ -247,7 +247,7 @@ int __init llc_proc_init(void)
 	int rc = -ENOMEM;
 	struct proc_dir_entry *p;
 
-	llc_proc_dir = proc_mkdir("llc", init_net.proc_net);
+	llc_proc_dir = proc_mkdir_restrict("llc", init_net.proc_net);
 	if (!llc_proc_dir)
 		goto out;
 
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index fe1704c..90b2111 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -339,7 +339,7 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 
 	switch (key->conf.cipher) {
 	case WLAN_CIPHER_SUITE_TKIP:
-		pn64 = atomic64_read(&key->conf.tx_pn);
+		pn64 = atomic64_read_unchecked(&key->conf.tx_pn);
 		iv32 = TKIP_PN_TO_IV32(pn64);
 		iv16 = TKIP_PN_TO_IV16(pn64);
 
@@ -379,7 +379,7 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 			drv_get_key_seq(sdata->local, key, &kseq);
 			memcpy(seq, kseq.ccmp.pn, 6);
 		} else {
-			pn64 = atomic64_read(&key->conf.tx_pn);
+			pn64 = atomic64_read_unchecked(&key->conf.tx_pn);
 			seq[0] = pn64;
 			seq[1] = pn64 >> 8;
 			seq[2] = pn64 >> 16;
@@ -541,7 +541,7 @@ static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
 			ret = ieee80211_vif_use_channel(sdata, chandef,
 					IEEE80211_CHANCTX_EXCLUSIVE);
 		}
-	} else if (local->open_count == local->monitors) {
+	} else if (local_read(&local->open_count) == local->monitors) {
 		local->_oper_chandef = *chandef;
 		ieee80211_hw_config(local, 0);
 	}
@@ -3065,7 +3065,7 @@ static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
 				sdata->vif.probe_req_reg--;
 		}
 
-		if (!local->open_count)
+		if (!local_read(&local->open_count))
 			break;
 
 		if (sdata->vif.probe_req_reg == 1)
@@ -3220,8 +3220,8 @@ static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
 	if (chanctx_conf) {
 		*chandef = sdata->vif.bss_conf.chandef;
 		ret = 0;
-	} else if (local->open_count > 0 &&
-		   local->open_count == local->monitors &&
+	} else if (local_read(&local->open_count) > 0 &&
+		   local_read(&local->open_count) == local->monitors &&
 		   sdata->vif.type == NL80211_IFTYPE_MONITOR) {
 		if (local->use_chanctx)
 			*chandef = local->monitor_chandef;
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index 4ab5c52..da3fdf1 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -91,7 +91,7 @@ static const struct file_operations reset_ops = {
 };
 #endif
 
-static const char *hw_flag_names[] = {
+static const char * const hw_flag_names[] = {
 #define FLAG(F)	[IEEE80211_HW_##F] = #F
 	FLAG(HAS_RATE_CONTROL),
 	FLAG(RX_INCLUDES_FCS),
diff --git a/net/mac80211/debugfs_key.c b/net/mac80211/debugfs_key.c
index a2ef95f..5adf27d 100644
--- a/net/mac80211/debugfs_key.c
+++ b/net/mac80211/debugfs_key.c
@@ -111,7 +111,7 @@ static ssize_t key_tx_spec_write(struct file *file, const char __user *userbuf,
 		/* PN is a 48-bit counter */
 		if (pn >= (1ULL << 48))
 			return -ERANGE;
-		atomic64_set(&key->conf.tx_pn, pn);
+		atomic64_set_unchecked(&key->conf.tx_pn, pn);
 		return count;
 	default:
 		return 0;
@@ -132,7 +132,7 @@ static ssize_t key_tx_spec_read(struct file *file, char __user *userbuf,
 		len = scnprintf(buf, sizeof(buf), "\n");
 		break;
 	case WLAN_CIPHER_SUITE_TKIP:
-		pn = atomic64_read(&key->conf.tx_pn);
+		pn = atomic64_read_unchecked(&key->conf.tx_pn);
 		len = scnprintf(buf, sizeof(buf), "%08x %04x\n",
 				TKIP_PN_TO_IV32(pn),
 				TKIP_PN_TO_IV16(pn));
@@ -145,7 +145,7 @@ static ssize_t key_tx_spec_read(struct file *file, char __user *userbuf,
 	case WLAN_CIPHER_SUITE_BIP_GMAC_256:
 	case WLAN_CIPHER_SUITE_GCMP:
 	case WLAN_CIPHER_SUITE_GCMP_256:
-		pn = atomic64_read(&key->conf.tx_pn);
+		pn = atomic64_read_unchecked(&key->conf.tx_pn);
 		len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n",
 				(u8)(pn >> 40), (u8)(pn >> 32), (u8)(pn >> 24),
 				(u8)(pn >> 16), (u8)(pn >> 8), (u8)pn);
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 4220035..04bc5c0 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -30,6 +30,7 @@
 #include <net/ieee80211_radiotap.h>
 #include <net/cfg80211.h>
 #include <net/mac80211.h>
+#include <asm/local.h>
 #include "key.h"
 #include "sta_info.h"
 #include "debug.h"
@@ -1106,7 +1107,7 @@ struct ieee80211_local {
 	/* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
 	spinlock_t queue_stop_reason_lock;
 
-	int open_count;
+	local_t open_count;
 	int monitors, cooked_mntrs;
 	/* number of interfaces with corresponding FIF_ flags */
 	int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index e1cb22c..1e2ee0c 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -551,7 +551,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
 		break;
 	}
 
-	if (local->open_count == 0) {
+	if (local_read(&local->open_count) == 0) {
 		res = drv_start(local);
 		if (res)
 			goto err_del_bss;
@@ -598,7 +598,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
 			res = drv_add_interface(local, sdata);
 			if (res)
 				goto err_stop;
-		} else if (local->monitors == 0 && local->open_count == 0) {
+		} else if (local->monitors == 0 && local_read(&local->open_count) == 0) {
 			res = ieee80211_add_virtual_monitor(local);
 			if (res)
 				goto err_stop;
@@ -707,7 +707,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
 		atomic_inc(&local->iff_allmultis);
 
 	if (coming_up)
-		local->open_count++;
+		local_inc(&local->open_count);
 
 	if (hw_reconf_flags)
 		ieee80211_hw_config(local, hw_reconf_flags);
@@ -745,7 +745,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
  err_del_interface:
 	drv_remove_interface(local, sdata);
  err_stop:
-	if (!local->open_count)
+	if (!local_read(&local->open_count))
 		drv_stop(local);
  err_del_bss:
 	sdata->bss = NULL;
@@ -912,7 +912,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
 	}
 
 	if (going_down)
-		local->open_count--;
+		local_dec(&local->open_count);
 
 	switch (sdata->vif.type) {
 	case NL80211_IFTYPE_AP_VLAN:
@@ -985,7 +985,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
 		atomic_set(&sdata->txqs_len[txqi->txq.ac], 0);
 	}
 
-	if (local->open_count == 0)
+	if (local_read(&local->open_count) == 0)
 		ieee80211_clear_tx_pending(local);
 
 	/*
@@ -1028,7 +1028,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
 	if (cancel_scan)
 		flush_delayed_work(&local->scan_work);
 
-	if (local->open_count == 0) {
+	if (local_read(&local->open_count) == 0) {
 		ieee80211_stop_device(local);
 
 		/* no reconfiguring after stop! */
@@ -1039,7 +1039,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
 	ieee80211_configure_filter(local);
 	ieee80211_hw_config(local, hw_reconf_flags);
 
-	if (local->monitors == local->open_count)
+	if (local->monitors == local_read(&local->open_count))
 		ieee80211_add_virtual_monitor(local);
 }
 
@@ -1909,8 +1909,8 @@ void ieee80211_remove_interfaces(struct ieee80211_local *local)
 	 */
 	cfg80211_shutdown_all_interfaces(local->hw.wiphy);
 
-	WARN(local->open_count, "%s: open count remains %d\n",
-	     wiphy_name(local->hw.wiphy), local->open_count);
+	WARN(local_read(&local->open_count), "%s: open count remains %ld\n",
+	     wiphy_name(local->hw.wiphy), local_read(&local->open_count));
 
 	mutex_lock(&local->iflist_mtx);
 	list_for_each_entry_safe(sdata, tmp, &local->interfaces, list) {
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 8190bf27..a428476 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -170,7 +170,7 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
 		changed &= ~(IEEE80211_CONF_CHANGE_CHANNEL |
 			     IEEE80211_CONF_CHANGE_POWER);
 
-	if (changed && local->open_count) {
+	if (changed && local_read(&local->open_count)) {
 		ret = drv_config(local, changed);
 		/*
 		 * Goal:
diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c
index 00a43a7..ab6deef 100644
--- a/net/mac80211/pm.c
+++ b/net/mac80211/pm.c
@@ -19,7 +19,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
 	struct ieee80211_sub_if_data *sdata;
 	struct sta_info *sta;
 
-	if (!local->open_count)
+	if (!local_read(&local->open_count))
 		goto suspend;
 
 	ieee80211_scan_cancel(local);
@@ -178,7 +178,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
 	WARN_ON(!list_empty(&local->chanctx_list));
 
 	/* stop hardware - this must stop RX */
-	if (local->open_count)
+	if (local_read(&local->open_count))
 		ieee80211_stop_device(local);
 
  suspend:
diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index a4e2f4e..02bfac1 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -901,7 +901,7 @@ int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
 
 	ASSERT_RTNL();
 
-	if (local->open_count)
+	if (local_read(&local->open_count))
 		return -EBUSY;
 
 	if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 861b93f..7eeb0db 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -351,7 +351,7 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
 		int size = sizeof(struct txq_info) +
 			   ALIGN(hw->txq_data_size, sizeof(void *));
 
-		txq_data = kcalloc(ARRAY_SIZE(sta->sta.txq), size, gfp);
+		txq_data = kcalloc(size, ARRAY_SIZE(sta->sta.txq), gfp);
 		if (!txq_data)
 			goto free;
 
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 21f6602..90396f4 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -2908,7 +2908,7 @@ static bool ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
 		case WLAN_CIPHER_SUITE_CCMP_256:
 		case WLAN_CIPHER_SUITE_GCMP:
 		case WLAN_CIPHER_SUITE_GCMP_256:
-			pn = atomic64_inc_return(&fast_tx->key->conf.tx_pn);
+			pn = atomic64_inc_return_unchecked(&fast_tx->key->conf.tx_pn);
 			crypto_hdr[0] = pn;
 			crypto_hdr[1] = pn >> 8;
 			crypto_hdr[4] = pn >> 16;
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 7390de4..3612686c 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1761,7 +1761,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 	bool suspended = local->suspended;
 
 	/* nothing to do if HW shouldn't run */
-	if (!local->open_count)
+	if (!local_read(&local->open_count))
 		goto wake_up;
 
 #ifdef CONFIG_PM
@@ -2067,7 +2067,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 		mutex_unlock(&local->mtx);
 	}
 
-	if (local->monitors == local->open_count && local->monitors > 0)
+	if (local->monitors == local_read(&local->open_count) && local->monitors > 0)
 		ieee80211_add_virtual_monitor(local);
 
 	/*
@@ -2101,7 +2101,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 	 * If this is for hw restart things are still running.
 	 * We may want to change that later, however.
 	 */
-	if (local->open_count && (!suspended || reconfig_due_to_wowlan))
+	if (local_read(&local->open_count) && (!suspended || reconfig_due_to_wowlan))
 		drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_RESTART);
 
 	if (!suspended)
@@ -2115,7 +2115,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 
 	ieee80211_flush_completed_scan(local, false);
 
-	if (local->open_count && !reconfig_due_to_wowlan)
+	if (local_read(&local->open_count) && !reconfig_due_to_wowlan)
 		drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_SUSPEND);
 
 	list_for_each_entry(sdata, &local->interfaces, list) {
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index 1884825..37036cc 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -223,7 +223,7 @@ static int tkip_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
 		return 0;
 
 	/* Increase IV for the frame */
-	pn = atomic64_inc_return(&key->conf.tx_pn);
+	pn = atomic64_inc_return_unchecked(&key->conf.tx_pn);
 	pos = ieee80211_tkip_add_iv(pos, &key->conf, pn);
 
 	/* hwaccel - with software IV */
@@ -444,7 +444,7 @@ static int ccmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb,
 	hdr = (struct ieee80211_hdr *) pos;
 	pos += hdrlen;
 
-	pn64 = atomic64_inc_return(&key->conf.tx_pn);
+	pn64 = atomic64_inc_return_unchecked(&key->conf.tx_pn);
 
 	pn[5] = pn64;
 	pn[4] = pn64 >> 8;
@@ -673,7 +673,7 @@ static int gcmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
 	hdr = (struct ieee80211_hdr *)pos;
 	pos += hdrlen;
 
-	pn64 = atomic64_inc_return(&key->conf.tx_pn);
+	pn64 = atomic64_inc_return_unchecked(&key->conf.tx_pn);
 
 	pn[5] = pn64;
 	pn[4] = pn64 >> 8;
@@ -947,7 +947,7 @@ ieee80211_crypto_aes_cmac_encrypt(struct ieee80211_tx_data *tx)
 	mmie->key_id = cpu_to_le16(key->conf.keyidx);
 
 	/* PN = PN + 1 */
-	pn64 = atomic64_inc_return(&key->conf.tx_pn);
+	pn64 = atomic64_inc_return_unchecked(&key->conf.tx_pn);
 
 	bip_ipn_set64(mmie->sequence_number, pn64);
 
@@ -991,7 +991,7 @@ ieee80211_crypto_aes_cmac_256_encrypt(struct ieee80211_tx_data *tx)
 	mmie->key_id = cpu_to_le16(key->conf.keyidx);
 
 	/* PN = PN + 1 */
-	pn64 = atomic64_inc_return(&key->conf.tx_pn);
+	pn64 = atomic64_inc_return_unchecked(&key->conf.tx_pn);
 
 	bip_ipn_set64(mmie->sequence_number, pn64);
 
@@ -1136,7 +1136,7 @@ ieee80211_crypto_aes_gmac_encrypt(struct ieee80211_tx_data *tx)
 	mmie->key_id = cpu_to_le16(key->conf.keyidx);
 
 	/* PN = PN + 1 */
-	pn64 = atomic64_inc_return(&key->conf.tx_pn);
+	pn64 = atomic64_inc_return_unchecked(&key->conf.tx_pn);
 
 	bip_ipn_set64(mmie->sequence_number, pn64);
 
diff --git a/net/mac802154/iface.c b/net/mac802154/iface.c
index 7079cd3..c299f08 100644
--- a/net/mac802154/iface.c
+++ b/net/mac802154/iface.c
@@ -386,7 +386,7 @@ static int ieee802154_header_create(struct sk_buff *skb,
 	hdr.fc.type = cb->type;
 	hdr.fc.security_enabled = cb->secen;
 	hdr.fc.ack_request = cb->ackreq;
-	hdr.seq = atomic_inc_return(&dev->ieee802154_ptr->dsn) & 0xFF;
+	hdr.seq = atomic_inc_return_unchecked(&dev->ieee802154_ptr->dsn) & 0xFF;
 
 	if (mac802154_set_header_security(sdata, &hdr, cb) < 0)
 		return -EINVAL;
@@ -451,7 +451,7 @@ static int mac802154_header_create(struct sk_buff *skb,
 	memset(&hdr.fc, 0, sizeof(hdr.fc));
 	hdr.fc.type = IEEE802154_FC_TYPE_DATA;
 	hdr.fc.ack_request = wpan_dev->ackreq;
-	hdr.seq = atomic_inc_return(&dev->ieee802154_ptr->dsn) & 0xFF;
+	hdr.seq = atomic_inc_return_unchecked(&dev->ieee802154_ptr->dsn) & 0xFF;
 
 	/* TODO currently a workaround to give zero cb block to set
 	 * security parameters defaults according MIB.
@@ -576,7 +576,7 @@ ieee802154_setup_sdata(struct ieee802154_sub_if_data *sdata,
 	get_random_bytes(&tmp, sizeof(tmp));
 	atomic_set(&wpan_dev->bsn, tmp);
 	get_random_bytes(&tmp, sizeof(tmp));
-	atomic_set(&wpan_dev->dsn, tmp);
+	atomic_set_unchecked(&wpan_dev->dsn, tmp);
 
 	/* defaults per 802.15.4-2011 */
 	wpan_dev->min_be = 3;
diff --git a/net/mpls/af_mpls.c b/net/mpls/af_mpls.c
index 0b80a71..8b0a639 100644
--- a/net/mpls/af_mpls.c
+++ b/net/mpls/af_mpls.c
@@ -871,7 +871,7 @@ static int mpls_dev_sysctl_register(struct net_device *dev,
 				    struct mpls_dev *mdev)
 {
 	char path[sizeof("net/mpls/conf/") + IFNAMSIZ];
-	struct ctl_table *table;
+	ctl_table_no_const *table;
 	int i;
 
 	table = kmemdup(&mpls_dev_table, sizeof(mpls_dev_table), GFP_KERNEL);
@@ -954,7 +954,7 @@ static void mpls_ifdown(struct net_device *dev, int event)
 				/* fall through */
 			case NETDEV_CHANGE:
 				nh->nh_flags |= RTNH_F_LINKDOWN;
-				ACCESS_ONCE(rt->rt_nhn_alive) = rt->rt_nhn_alive - 1;
+				ACCESS_ONCE_RW(rt->rt_nhn_alive) = rt->rt_nhn_alive - 1;
 				break;
 			}
 			if (event == NETDEV_UNREGISTER)
@@ -995,7 +995,7 @@ static void mpls_ifup(struct net_device *dev, unsigned int nh_flags)
 			nh->nh_flags &= ~nh_flags;
 		} endfor_nexthops(rt);
 
-		ACCESS_ONCE(rt->rt_nhn_alive) = alive;
+		ACCESS_ONCE_RW(rt->rt_nhn_alive) = alive;
 	}
 
 	return;
@@ -1621,7 +1621,7 @@ static int mpls_platform_labels(struct ctl_table *table, int write,
 	struct net *net = table->data;
 	int platform_labels = net->mpls.platform_labels;
 	int ret;
-	struct ctl_table tmp = {
+	ctl_table_no_const tmp = {
 		.procname	= table->procname,
 		.data		= &platform_labels,
 		.maxlen		= sizeof(int),
@@ -1651,7 +1651,7 @@ static const struct ctl_table mpls_table[] = {
 
 static int mpls_net_init(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table;
 
 	net->mpls.platform_labels = 0;
 	net->mpls.platform_label = NULL;
diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index 95e757c..30e3a16 100644
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -1150,6 +1150,16 @@ config NETFILTER_XT_MATCH_ESP
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
+config NETFILTER_XT_MATCH_GRADM
+	tristate '"gradm" match support'
+	depends on NETFILTER_XTABLES && NETFILTER_ADVANCED
+	depends on GRKERNSEC && !GRKERNSEC_NO_RBAC
+	---help---
+	  The gradm match allows to match on grsecurity RBAC being enabled.
+	  It is useful when iptables rules are applied early on bootup to
+	  prevent connections to the machine (except from a trusted host)
+	  while the RBAC system is disabled.
+
 config NETFILTER_XT_MATCH_HASHLIMIT
 	tristate '"hashlimit" match support'
 	depends on IP6_NF_IPTABLES || IP6_NF_IPTABLES=n
diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile
index 6913454..43686aa 100644
--- a/net/netfilter/Makefile
+++ b/net/netfilter/Makefile
@@ -145,6 +145,7 @@ obj-$(CONFIG_NETFILTER_XT_MATCH_DEVGROUP) += xt_devgroup.o
 obj-$(CONFIG_NETFILTER_XT_MATCH_DSCP) += xt_dscp.o
 obj-$(CONFIG_NETFILTER_XT_MATCH_ECN) += xt_ecn.o
 obj-$(CONFIG_NETFILTER_XT_MATCH_ESP) += xt_esp.o
+obj-$(CONFIG_NETFILTER_XT_MATCH_GRADM) += xt_gradm.o
 obj-$(CONFIG_NETFILTER_XT_MATCH_HASHLIMIT) += xt_hashlimit.o
 obj-$(CONFIG_NETFILTER_XT_MATCH_HELPER) += xt_helper.o
 obj-$(CONFIG_NETFILTER_XT_MATCH_HL) += xt_hl.o
diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c
index a748b0c..90c1df6 100644
--- a/net/netfilter/ipset/ip_set_core.c
+++ b/net/netfilter/ipset/ip_set_core.c
@@ -324,7 +324,6 @@ ip_set_get_ipaddr6(struct nlattr *nla, union nf_inet_addr *ipaddr)
 }
 EXPORT_SYMBOL_GPL(ip_set_get_ipaddr6);
 
-typedef void (*destroyer)(void *);
 /* ipset data extension types, in size order */
 
 const struct ip_set_ext_type ip_set_extensions[] = {
@@ -350,7 +349,7 @@ const struct ip_set_ext_type ip_set_extensions[] = {
 		.flag	 = IPSET_FLAG_WITH_COMMENT,
 		.len	 = sizeof(struct ip_set_comment),
 		.align	 = __alignof__(struct ip_set_comment),
-		.destroy = (destroyer) ip_set_comment_free,
+		.destroy = ip_set_comment_free,
 	},
 };
 EXPORT_SYMBOL_GPL(ip_set_extensions);
@@ -1440,7 +1439,7 @@ static int ip_set_dump(struct net *net, struct sock *ctnl, struct sk_buff *skb,
 		return -IPSET_ERR_PROTOCOL;
 
 	{
-		struct netlink_dump_control c = {
+		static struct netlink_dump_control c = {
 			.dump = ip_set_dump_start,
 			.done = ip_set_dump_done,
 		};
@@ -2009,7 +2008,7 @@ done:
 	return ret;
 }
 
-static struct nf_sockopt_ops so_set __read_mostly = {
+static struct nf_sockopt_ops so_set = {
 	.pf		= PF_INET,
 	.get_optmin	= SO_IP_SET,
 	.get_optmax	= SO_IP_SET + 1,
diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c
index 85ca189..871f064 100644
--- a/net/netfilter/ipvs/ip_vs_conn.c
+++ b/net/netfilter/ipvs/ip_vs_conn.c
@@ -574,7 +574,7 @@ ip_vs_bind_dest(struct ip_vs_conn *cp, struct ip_vs_dest *dest)
 	/* Increase the refcnt counter of the dest */
 	ip_vs_dest_hold(dest);
 
-	conn_flags = atomic_read(&dest->conn_flags);
+	conn_flags = atomic_read_unchecked(&dest->conn_flags);
 	if (cp->protocol != IPPROTO_UDP)
 		conn_flags &= ~IP_VS_CONN_F_ONE_PACKET;
 	flags = cp->flags;
@@ -923,7 +923,7 @@ ip_vs_conn_new(const struct ip_vs_conn_param *p, int dest_af,
 
 	cp->control = NULL;
 	atomic_set(&cp->n_control, 0);
-	atomic_set(&cp->in_pkts, 0);
+	atomic_set_unchecked(&cp->in_pkts, 0);
 
 	cp->packet_xmit = NULL;
 	cp->app = NULL;
@@ -1230,7 +1230,7 @@ static inline int todrop_entry(struct ip_vs_conn *cp)
 
 	/* Don't drop the entry if its number of incoming packets is not
 	   located in [0, 8] */
-	i = atomic_read(&cp->in_pkts);
+	i = atomic_read_unchecked(&cp->in_pkts);
 	if (i > 8 || i < 0) return 0;
 
 	if (!todrop_rate[i]) return 0;
diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
index b9a4082..0e84a78 100644
--- a/net/netfilter/ipvs/ip_vs_core.c
+++ b/net/netfilter/ipvs/ip_vs_core.c
@@ -611,7 +611,7 @@ int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff *skb,
 		ret = cp->packet_xmit(skb, cp, pd->pp, iph);
 		/* do not touch skb anymore */
 
-		atomic_inc(&cp->in_pkts);
+		atomic_inc_unchecked(&cp->in_pkts);
 		ip_vs_conn_put(cp);
 		return ret;
 	}
@@ -1833,7 +1833,7 @@ ip_vs_in(struct netns_ipvs *ipvs, unsigned int hooknum, struct sk_buff *skb, int
 	if (cp->flags & IP_VS_CONN_F_ONE_PACKET)
 		pkts = sysctl_sync_threshold(ipvs);
 	else
-		pkts = atomic_add_return(1, &cp->in_pkts);
+		pkts = atomic_add_return_unchecked(1, &cp->in_pkts);
 
 	if (ipvs->sync_state & IP_VS_STATE_MASTER)
 		ip_vs_sync_conn(ipvs, cp, pkts);
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index 404b2a4..ad446aa 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -811,7 +811,7 @@ __ip_vs_update_dest(struct ip_vs_service *svc, struct ip_vs_dest *dest,
 		 */
 		ip_vs_rs_hash(ipvs, dest);
 	}
-	atomic_set(&dest->conn_flags, conn_flags);
+	atomic_set_unchecked(&dest->conn_flags, conn_flags);
 
 	/* bind the service */
 	old_svc = rcu_dereference_protected(dest->svc, 1);
@@ -1685,7 +1685,7 @@ proc_do_sync_ports(struct ctl_table *table, int write,
  *	align with netns init in ip_vs_control_net_init()
  */
 
-static struct ctl_table vs_vars[] = {
+static ctl_table_no_const vs_vars[] __read_only = {
 	{
 		.procname	= "amemthresh",
 		.maxlen		= sizeof(int),
@@ -2040,7 +2040,7 @@ static int ip_vs_info_seq_show(struct seq_file *seq, void *v)
 					   "      %-7s %-6d %-10d %-10d\n",
 					   &dest->addr.in6,
 					   ntohs(dest->port),
-					   ip_vs_fwd_name(atomic_read(&dest->conn_flags)),
+					   ip_vs_fwd_name(atomic_read_unchecked(&dest->conn_flags)),
 					   atomic_read(&dest->weight),
 					   atomic_read(&dest->activeconns),
 					   atomic_read(&dest->inactconns));
@@ -2051,7 +2051,7 @@ static int ip_vs_info_seq_show(struct seq_file *seq, void *v)
 					   "%-7s %-6d %-10d %-10d\n",
 					   ntohl(dest->addr.ip),
 					   ntohs(dest->port),
-					   ip_vs_fwd_name(atomic_read(&dest->conn_flags)),
+					   ip_vs_fwd_name(atomic_read_unchecked(&dest->conn_flags)),
 					   atomic_read(&dest->weight),
 					   atomic_read(&dest->activeconns),
 					   atomic_read(&dest->inactconns));
@@ -2560,7 +2560,7 @@ __ip_vs_get_dest_entries(struct netns_ipvs *ipvs, const struct ip_vs_get_dests *
 
 			entry.addr = dest->addr.ip;
 			entry.port = dest->port;
-			entry.conn_flags = atomic_read(&dest->conn_flags);
+			entry.conn_flags = atomic_read_unchecked(&dest->conn_flags);
 			entry.weight = atomic_read(&dest->weight);
 			entry.u_threshold = dest->u_threshold;
 			entry.l_threshold = dest->l_threshold;
@@ -3141,7 +3141,7 @@ static int ip_vs_genl_fill_dest(struct sk_buff *skb, struct ip_vs_dest *dest)
 	if (nla_put(skb, IPVS_DEST_ATTR_ADDR, sizeof(dest->addr), &dest->addr) ||
 	    nla_put_be16(skb, IPVS_DEST_ATTR_PORT, dest->port) ||
 	    nla_put_u32(skb, IPVS_DEST_ATTR_FWD_METHOD,
-			(atomic_read(&dest->conn_flags) &
+			(atomic_read_unchecked(&dest->conn_flags) &
 			 IP_VS_CONN_F_FWD_MASK)) ||
 	    nla_put_u32(skb, IPVS_DEST_ATTR_WEIGHT,
 			atomic_read(&dest->weight)) ||
@@ -3838,7 +3838,7 @@ static int __net_init ip_vs_control_net_init_sysctl(struct netns_ipvs *ipvs)
 {
 	struct net *net = ipvs->net;
 	int idx;
-	struct ctl_table *tbl;
+	ctl_table_no_const *tbl;
 
 	atomic_set(&ipvs->dropentry, 0);
 	spin_lock_init(&ipvs->dropentry_lock);
diff --git a/net/netfilter/ipvs/ip_vs_lblc.c b/net/netfilter/ipvs/ip_vs_lblc.c
index cccf4d6..8d60399 100644
--- a/net/netfilter/ipvs/ip_vs_lblc.c
+++ b/net/netfilter/ipvs/ip_vs_lblc.c
@@ -118,7 +118,7 @@ struct ip_vs_lblc_table {
  *      IPVS LBLC sysctl table
  */
 #ifdef CONFIG_SYSCTL
-static struct ctl_table vs_vars_table[] = {
+static ctl_table_no_const vs_vars_table[] __read_only = {
 	{
 		.procname	= "lblc_expiration",
 		.data		= NULL,
diff --git a/net/netfilter/ipvs/ip_vs_lblcr.c b/net/netfilter/ipvs/ip_vs_lblcr.c
index 796d70e..8458955 100644
--- a/net/netfilter/ipvs/ip_vs_lblcr.c
+++ b/net/netfilter/ipvs/ip_vs_lblcr.c
@@ -289,7 +289,7 @@ struct ip_vs_lblcr_table {
  *      IPVS LBLCR sysctl table
  */
 
-static struct ctl_table vs_vars_table[] = {
+static ctl_table_no_const vs_vars_table[] __read_only = {
 	{
 		.procname	= "lblcr_expiration",
 		.data		= NULL,
diff --git a/net/netfilter/ipvs/ip_vs_sync.c b/net/netfilter/ipvs/ip_vs_sync.c
index 803001a..09fb00d 100644
--- a/net/netfilter/ipvs/ip_vs_sync.c
+++ b/net/netfilter/ipvs/ip_vs_sync.c
@@ -611,7 +611,7 @@ static void ip_vs_sync_conn_v0(struct netns_ipvs *ipvs, struct ip_vs_conn *cp,
 	cp = cp->control;
 	if (cp) {
 		if (cp->flags & IP_VS_CONN_F_TEMPLATE)
-			pkts = atomic_add_return(1, &cp->in_pkts);
+			pkts = atomic_add_return_unchecked(1, &cp->in_pkts);
 		else
 			pkts = sysctl_sync_threshold(ipvs);
 		ip_vs_sync_conn(ipvs, cp, pkts);
@@ -772,7 +772,7 @@ control:
 	if (!cp)
 		return;
 	if (cp->flags & IP_VS_CONN_F_TEMPLATE)
-		pkts = atomic_add_return(1, &cp->in_pkts);
+		pkts = atomic_add_return_unchecked(1, &cp->in_pkts);
 	else
 		pkts = sysctl_sync_threshold(ipvs);
 	goto sloop;
@@ -919,7 +919,7 @@ static void ip_vs_proc_conn(struct netns_ipvs *ipvs, struct ip_vs_conn_param *pa
 
 	if (opt)
 		memcpy(&cp->in_seq, opt, sizeof(*opt));
-	atomic_set(&cp->in_pkts, sysctl_sync_threshold(ipvs));
+	atomic_set_unchecked(&cp->in_pkts, sysctl_sync_threshold(ipvs));
 	cp->state = state;
 	cp->old_state = cp->state;
 	/*
diff --git a/net/netfilter/ipvs/ip_vs_xmit.c b/net/netfilter/ipvs/ip_vs_xmit.c
index dc196a0..e04d80d 100644
--- a/net/netfilter/ipvs/ip_vs_xmit.c
+++ b/net/netfilter/ipvs/ip_vs_xmit.c
@@ -1260,7 +1260,7 @@ ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
 		else
 			rc = NF_ACCEPT;
 		/* do not touch skb anymore */
-		atomic_inc(&cp->in_pkts);
+		atomic_inc_unchecked(&cp->in_pkts);
 		goto out;
 	}
 
@@ -1353,7 +1353,7 @@ ip_vs_icmp_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
 		else
 			rc = NF_ACCEPT;
 		/* do not touch skb anymore */
-		atomic_inc(&cp->in_pkts);
+		atomic_inc_unchecked(&cp->in_pkts);
 		goto out;
 	}
 
diff --git a/net/netfilter/nf_conntrack_acct.c b/net/netfilter/nf_conntrack_acct.c
index 45da11a..ef3e5dc 100644
--- a/net/netfilter/nf_conntrack_acct.c
+++ b/net/netfilter/nf_conntrack_acct.c
@@ -64,7 +64,7 @@ static struct nf_ct_ext_type acct_extend __read_mostly = {
 #ifdef CONFIG_SYSCTL
 static int nf_conntrack_acct_init_sysctl(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table;
 
 	table = kmemdup(acct_sysctl_table, sizeof(acct_sysctl_table),
 			GFP_KERNEL);
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index e27fd17..480a953 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -1579,7 +1579,7 @@ void *nf_ct_alloc_hashtable(unsigned int *sizep, int nulls)
 }
 EXPORT_SYMBOL_GPL(nf_ct_alloc_hashtable);
 
-int nf_conntrack_set_hashsize(const char *val, struct kernel_param *kp)
+int nf_conntrack_set_hashsize(const char *val, const struct kernel_param *kp)
 {
 	int i, bucket, rc;
 	unsigned int hashsize, old_size;
@@ -1778,7 +1778,7 @@ void nf_conntrack_init_end(void)
 
 int nf_conntrack_init_net(struct net *net)
 {
-	static atomic64_t unique_id;
+	static atomic64_unchecked_t unique_id;
 	int ret = -ENOMEM;
 	int cpu;
 
@@ -1802,7 +1802,7 @@ int nf_conntrack_init_net(struct net *net)
 		goto err_pcpu_lists;
 
 	net->ct.slabname = kasprintf(GFP_KERNEL, "nf_conntrack_%llu",
-				(u64)atomic64_inc_return(&unique_id));
+				(u64)atomic64_inc_return_unchecked(&unique_id));
 	if (!net->ct.slabname)
 		goto err_slabname;
 
diff --git a/net/netfilter/nf_conntrack_ecache.c b/net/netfilter/nf_conntrack_ecache.c
index 4e78c57..ec8fb74 100644
--- a/net/netfilter/nf_conntrack_ecache.c
+++ b/net/netfilter/nf_conntrack_ecache.c
@@ -264,7 +264,7 @@ static struct nf_ct_ext_type event_extend __read_mostly = {
 #ifdef CONFIG_SYSCTL
 static int nf_conntrack_event_init_sysctl(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table;
 
 	table = kmemdup(event_sysctl_table, sizeof(event_sysctl_table),
 			GFP_KERNEL);
diff --git a/net/netfilter/nf_conntrack_helper.c b/net/netfilter/nf_conntrack_helper.c
index 3b40ec5..fbd2fb7 100644
--- a/net/netfilter/nf_conntrack_helper.c
+++ b/net/netfilter/nf_conntrack_helper.c
@@ -57,7 +57,7 @@ static struct ctl_table helper_sysctl_table[] = {
 
 static int nf_conntrack_helper_init_sysctl(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table;
 
 	table = kmemdup(helper_sysctl_table, sizeof(helper_sysctl_table),
 			GFP_KERNEL);
diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index 355e855..4973252 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -1182,10 +1182,11 @@ static int ctnetlink_get_conntrack(struct net *net, struct sock *ctnl,
 	int err;
 
 	if (nlh->nlmsg_flags & NLM_F_DUMP) {
-		struct netlink_dump_control c = {
+		static struct netlink_dump_control c = {
 			.dump = ctnetlink_dump_table,
 			.done = ctnetlink_done,
 		};
+		void *data = NULL;
 
 		if (cda[CTA_MARK] && cda[CTA_MARK_MASK]) {
 			struct ctnetlink_filter *filter;
@@ -1194,9 +1195,9 @@ static int ctnetlink_get_conntrack(struct net *net, struct sock *ctnl,
 			if (IS_ERR(filter))
 				return PTR_ERR(filter);
 
-			c.data = filter;
+			data = filter;
 		}
-		return netlink_dump_start(ctnl, skb, nlh, &c);
+		return __netlink_dump_start(ctnl, skb, nlh, &c, data, THIS_MODULE);
 	}
 
 	err = ctnetlink_parse_zone(cda[CTA_ZONE], &zone);
@@ -1334,7 +1335,7 @@ static int ctnetlink_get_ct_dying(struct net *net, struct sock *ctnl,
 				  const struct nlattr * const cda[])
 {
 	if (nlh->nlmsg_flags & NLM_F_DUMP) {
-		struct netlink_dump_control c = {
+		static struct netlink_dump_control c = {
 			.dump = ctnetlink_dump_dying,
 			.done = ctnetlink_done_list,
 		};
@@ -1356,7 +1357,7 @@ static int ctnetlink_get_ct_unconfirmed(struct net *net, struct sock *ctnl,
 					const struct nlattr * const cda[])
 {
 	if (nlh->nlmsg_flags & NLM_F_DUMP) {
-		struct netlink_dump_control c = {
+		static struct netlink_dump_control c = {
 			.dump = ctnetlink_dump_unconfirmed,
 			.done = ctnetlink_done_list,
 		};
@@ -2037,7 +2038,7 @@ static int ctnetlink_stat_ct_cpu(struct net *net, struct sock *ctnl,
 				 const struct nlattr * const cda[])
 {
 	if (nlh->nlmsg_flags & NLM_F_DUMP) {
-		struct netlink_dump_control c = {
+		static struct netlink_dump_control c = {
 			.dump = ctnetlink_ct_stat_cpu_dump,
 		};
 		return netlink_dump_start(ctnl, skb, nlh, &c);
@@ -2737,7 +2738,7 @@ static int ctnetlink_dump_exp_ct(struct net *net, struct sock *ctnl,
 	struct nf_conntrack_tuple_hash *h;
 	struct nf_conn *ct;
 	struct nf_conntrack_zone zone;
-	struct netlink_dump_control c = {
+	static struct netlink_dump_control c = {
 		.dump = ctnetlink_exp_ct_dump_table,
 		.done = ctnetlink_exp_done,
 	};
@@ -2756,9 +2757,8 @@ static int ctnetlink_dump_exp_ct(struct net *net, struct sock *ctnl,
 		return -ENOENT;
 
 	ct = nf_ct_tuplehash_to_ctrack(h);
-	c.data = ct;
 
-	err = netlink_dump_start(ctnl, skb, nlh, &c);
+	err = __netlink_dump_start(ctnl, skb, nlh, &c, ct, THIS_MODULE);
 	nf_ct_put(ct);
 
 	return err;
@@ -2780,7 +2780,7 @@ static int ctnetlink_get_expect(struct net *net, struct sock *ctnl,
 		if (cda[CTA_EXPECT_MASTER])
 			return ctnetlink_dump_exp_ct(net, ctnl, skb, nlh, cda);
 		else {
-			struct netlink_dump_control c = {
+			static struct netlink_dump_control c = {
 				.dump = ctnetlink_exp_dump_table,
 				.done = ctnetlink_exp_done,
 			};
@@ -3238,7 +3238,7 @@ static int ctnetlink_stat_exp_cpu(struct net *net, struct sock *ctnl,
 				  const struct nlattr * const cda[])
 {
 	if (nlh->nlmsg_flags & NLM_F_DUMP) {
-		struct netlink_dump_control c = {
+		static struct netlink_dump_control c = {
 			.dump = ctnetlink_exp_stat_cpu_dump,
 		};
 		return netlink_dump_start(ctnl, skb, nlh, &c);
diff --git a/net/netfilter/nf_conntrack_proto.c b/net/netfilter/nf_conntrack_proto.c
index b65d586..beec902 100644
--- a/net/netfilter/nf_conntrack_proto.c
+++ b/net/netfilter/nf_conntrack_proto.c
@@ -52,7 +52,7 @@ nf_ct_register_sysctl(struct net *net,
 
 static void
 nf_ct_unregister_sysctl(struct ctl_table_header **header,
-			struct ctl_table **table,
+			ctl_table_no_const **table,
 			unsigned int users)
 {
 	if (users > 0)
diff --git a/net/netfilter/nf_conntrack_standalone.c b/net/netfilter/nf_conntrack_standalone.c
index 0f1a45b..a6ce792 100644
--- a/net/netfilter/nf_conntrack_standalone.c
+++ b/net/netfilter/nf_conntrack_standalone.c
@@ -504,7 +504,7 @@ static struct ctl_table nf_ct_netfilter_table[] = {
 
 static int nf_conntrack_standalone_init_sysctl(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table;
 
 	table = kmemdup(nf_ct_sysctl_table, sizeof(nf_ct_sysctl_table),
 			GFP_KERNEL);
diff --git a/net/netfilter/nf_conntrack_timestamp.c b/net/netfilter/nf_conntrack_timestamp.c
index 7a394df..bd91a8a 100644
--- a/net/netfilter/nf_conntrack_timestamp.c
+++ b/net/netfilter/nf_conntrack_timestamp.c
@@ -42,7 +42,7 @@ static struct nf_ct_ext_type tstamp_extend __read_mostly = {
 #ifdef CONFIG_SYSCTL
 static int nf_conntrack_tstamp_init_sysctl(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table;
 
 	table = kmemdup(tstamp_sysctl_table, sizeof(tstamp_sysctl_table),
 			GFP_KERNEL);
diff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c
index a5d41df..1ff49be 100644
--- a/net/netfilter/nf_log.c
+++ b/net/netfilter/nf_log.c
@@ -391,7 +391,7 @@ static const struct file_operations nflog_file_ops = {
 
 #ifdef CONFIG_SYSCTL
 static char nf_log_sysctl_fnames[NFPROTO_NUMPROTO-NFPROTO_UNSPEC][3];
-static struct ctl_table nf_log_sysctl_table[NFPROTO_NUMPROTO+1];
+static ctl_table_no_const nf_log_sysctl_table[NFPROTO_NUMPROTO+1] __read_only;
 
 static int nf_log_proc_dostring(struct ctl_table *table, int write,
 			 void __user *buffer, size_t *lenp, loff_t *ppos)
@@ -422,13 +422,15 @@ static int nf_log_proc_dostring(struct ctl_table *table, int write,
 		rcu_assign_pointer(net->nf.nf_loggers[tindex], logger);
 		mutex_unlock(&nf_log_mutex);
 	} else {
+		ctl_table_no_const nf_log_table = *table;
+
 		mutex_lock(&nf_log_mutex);
 		logger = nft_log_dereference(net->nf.nf_loggers[tindex]);
 		if (!logger)
-			table->data = "NONE";
+			nf_log_table.data = "NONE";
 		else
-			table->data = logger->name;
-		r = proc_dostring(table, write, buffer, lenp, ppos);
+			nf_log_table.data = logger->name;
+		r = proc_dostring(&nf_log_table, write, buffer, lenp, ppos);
 		mutex_unlock(&nf_log_mutex);
 	}
 
diff --git a/net/netfilter/nf_nat_ftp.c b/net/netfilter/nf_nat_ftp.c
index e84a578..d76afaf 100644
--- a/net/netfilter/nf_nat_ftp.c
+++ b/net/netfilter/nf_nat_ftp.c
@@ -134,7 +134,7 @@ static int __init nf_nat_ftp_init(void)
 }
 
 /* Prior to 2.6.11, we had a ports param.  No longer, but don't break users. */
-static int warn_set(const char *val, struct kernel_param *kp)
+static int warn_set(const char *val, const struct kernel_param *kp)
 {
 	printk(KERN_INFO KBUILD_MODNAME
 	       ": kernel >= 2.6.10 only uses 'ports' for conntrack modules\n");
diff --git a/net/netfilter/nf_nat_irc.c b/net/netfilter/nf_nat_irc.c
index 1fb2258..8039bcd 100644
--- a/net/netfilter/nf_nat_irc.c
+++ b/net/netfilter/nf_nat_irc.c
@@ -107,7 +107,7 @@ static int __init nf_nat_irc_init(void)
 }
 
 /* Prior to 2.6.11, we had a ports param.  No longer, but don't break users. */
-static int warn_set(const char *val, struct kernel_param *kp)
+static int warn_set(const char *val, const struct kernel_param *kp)
 {
 	printk(KERN_INFO KBUILD_MODNAME
 	       ": kernel >= 2.6.10 only uses 'ports' for conntrack modules\n");
diff --git a/net/netfilter/nf_sockopt.c b/net/netfilter/nf_sockopt.c
index c68c1e5..8b5d670 100644
--- a/net/netfilter/nf_sockopt.c
+++ b/net/netfilter/nf_sockopt.c
@@ -43,7 +43,7 @@ int nf_register_sockopt(struct nf_sockopt_ops *reg)
 		}
 	}
 
-	list_add(&reg->list, &nf_sockopts);
+	pax_list_add((struct list_head *)&reg->list, &nf_sockopts);
 out:
 	mutex_unlock(&nf_sockopt_mutex);
 	return ret;
@@ -53,7 +53,7 @@ EXPORT_SYMBOL(nf_register_sockopt);
 void nf_unregister_sockopt(struct nf_sockopt_ops *reg)
 {
 	mutex_lock(&nf_sockopt_mutex);
-	list_del(&reg->list);
+	pax_list_del((struct list_head *)&reg->list);
 	mutex_unlock(&nf_sockopt_mutex);
 }
 EXPORT_SYMBOL(nf_unregister_sockopt);
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 2011977..ba46f29 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -555,7 +555,7 @@ static int nf_tables_gettable(struct net *net, struct sock *nlsk,
 	int err;
 
 	if (nlh->nlmsg_flags & NLM_F_DUMP) {
-		struct netlink_dump_control c = {
+		static struct netlink_dump_control c = {
 			.dump = nf_tables_dump_tables,
 		};
 		return netlink_dump_start(nlsk, skb, nlh, &c);
@@ -1109,7 +1109,7 @@ static int nf_tables_getchain(struct net *net, struct sock *nlsk,
 	int err;
 
 	if (nlh->nlmsg_flags & NLM_F_DUMP) {
-		struct netlink_dump_control c = {
+		static struct netlink_dump_control c = {
 			.dump = nf_tables_dump_chains,
 		};
 		return netlink_dump_start(nlsk, skb, nlh, &c);
@@ -1935,7 +1935,7 @@ static int nf_tables_getrule(struct net *net, struct sock *nlsk,
 	int err;
 
 	if (nlh->nlmsg_flags & NLM_F_DUMP) {
-		struct netlink_dump_control c = {
+		static struct netlink_dump_control c = {
 			.dump = nf_tables_dump_rules,
 		};
 		return netlink_dump_start(nlsk, skb, nlh, &c);
@@ -2622,7 +2622,7 @@ static int nf_tables_getset(struct net *net, struct sock *nlsk,
 		return err;
 
 	if (nlh->nlmsg_flags & NLM_F_DUMP) {
-		struct netlink_dump_control c = {
+		static struct netlink_dump_control c = {
 			.dump = nf_tables_dump_sets,
 			.done = nf_tables_dump_sets_done,
 		};
@@ -2633,9 +2633,8 @@ static int nf_tables_getset(struct net *net, struct sock *nlsk,
 			return -ENOMEM;
 
 		*ctx_dump = ctx;
-		c.data = ctx_dump;
 
-		return netlink_dump_start(nlsk, skb, nlh, &c);
+		return __netlink_dump_start(nlsk, skb, nlh, &c, ctx_dump, THIS_MODULE);
 	}
 
 	/* Only accept unspec with dump */
@@ -3226,7 +3225,7 @@ static int nf_tables_getsetelem(struct net *net, struct sock *nlsk,
 		return -ENOENT;
 
 	if (nlh->nlmsg_flags & NLM_F_DUMP) {
-		struct netlink_dump_control c = {
+		static struct netlink_dump_control c = {
 			.dump = nf_tables_dump_set,
 		};
 		return netlink_dump_start(nlsk, skb, nlh, &c);
diff --git a/net/netfilter/nfnetlink_acct.c b/net/netfilter/nfnetlink_acct.c
index dbd0803..1071d39 100644
--- a/net/netfilter/nfnetlink_acct.c
+++ b/net/netfilter/nfnetlink_acct.c
@@ -266,10 +266,11 @@ static int nfnl_acct_get(struct net *net, struct sock *nfnl,
 	char *acct_name;
 
 	if (nlh->nlmsg_flags & NLM_F_DUMP) {
-		struct netlink_dump_control c = {
+		static struct netlink_dump_control c = {
 			.dump = nfnl_acct_dump,
 			.done = nfnl_acct_done,
 		};
+		void *data = NULL;
 
 		if (tb[NFACCT_FILTER]) {
 			struct nfacct_filter *filter;
@@ -278,9 +279,9 @@ static int nfnl_acct_get(struct net *net, struct sock *nfnl,
 			if (IS_ERR(filter))
 				return PTR_ERR(filter);
 
-			c.data = filter;
+			data = filter;
 		}
-		return netlink_dump_start(nfnl, skb, nlh, &c);
+		return __netlink_dump_start(nfnl, skb, nlh, &c, data, THIS_MODULE);
 	}
 
 	if (!tb[NFACCT_NAME])
diff --git a/net/netfilter/nfnetlink_cthelper.c b/net/netfilter/nfnetlink_cthelper.c
index e924e95..1e2e233 100644
--- a/net/netfilter/nfnetlink_cthelper.c
+++ b/net/netfilter/nfnetlink_cthelper.c
@@ -510,7 +510,7 @@ static int nfnl_cthelper_get(struct net *net, struct sock *nfnl,
 	bool tuple_set = false;
 
 	if (nlh->nlmsg_flags & NLM_F_DUMP) {
-		struct netlink_dump_control c = {
+		static struct netlink_dump_control c = {
 			.dump = nfnl_cthelper_dump_table,
 		};
 		return netlink_dump_start(nfnl, skb, nlh, &c);
diff --git a/net/netfilter/nfnetlink_cttimeout.c b/net/netfilter/nfnetlink_cttimeout.c
index 2671b9d..e518410 100644
--- a/net/netfilter/nfnetlink_cttimeout.c
+++ b/net/netfilter/nfnetlink_cttimeout.c
@@ -248,7 +248,7 @@ static int cttimeout_get_timeout(struct net *net, struct sock *ctnl,
 	struct ctnl_timeout *cur;
 
 	if (nlh->nlmsg_flags & NLM_F_DUMP) {
-		struct netlink_dump_control c = {
+		static struct netlink_dump_control c = {
 			.dump = ctnl_timeout_dump,
 		};
 		return netlink_dump_start(ctnl, skb, nlh, &c);
diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
index 11f81c8..9b07ee5 100644
--- a/net/netfilter/nfnetlink_log.c
+++ b/net/netfilter/nfnetlink_log.c
@@ -85,7 +85,7 @@ static int nfnl_log_net_id __read_mostly;
 struct nfnl_log_net {
 	spinlock_t instances_lock;
 	struct hlist_head instance_table[INSTANCE_BUCKETS];
-	atomic_t global_seq;
+	atomic_unchecked_t global_seq;
 };
 
 static struct nfnl_log_net *nfnl_log_pernet(struct net *net)
@@ -570,7 +570,7 @@ __build_packet_message(struct nfnl_log_net *log,
 	/* global sequence number */
 	if ((inst->flags & NFULNL_CFG_F_SEQ_GLOBAL) &&
 	    nla_put_be32(inst->skb, NFULA_SEQ_GLOBAL,
-			 htonl(atomic_inc_return(&log->global_seq))))
+			 htonl(atomic_inc_return_unchecked(&log->global_seq))))
 		goto nla_put_failure;
 
 	if (ct && nfnl_ct->build(inst->skb, ct, ctinfo,
diff --git a/net/netfilter/nft_compat.c b/net/netfilter/nft_compat.c
index 6228c42..fe2517f 100644
--- a/net/netfilter/nft_compat.c
+++ b/net/netfilter/nft_compat.c
@@ -322,14 +322,7 @@ static void nft_match_eval(const struct nft_expr *expr,
 		return;
 	}
 
-	switch (ret ? 1 : 0) {
-	case 1:
-		regs->verdict.code = NFT_CONTINUE;
-		break;
-	case 0:
-		regs->verdict.code = NFT_BREAK;
-		break;
-	}
+	regs->verdict.code = ret ? NFT_CONTINUE : NFT_BREAK;
 }
 
 static const struct nla_policy nft_match_policy[NFTA_MATCH_MAX + 1] = {
diff --git a/net/netfilter/xt_IDLETIMER.c b/net/netfilter/xt_IDLETIMER.c
index daf45da..615f970 100644
--- a/net/netfilter/xt_IDLETIMER.c
+++ b/net/netfilter/xt_IDLETIMER.c
@@ -41,19 +41,13 @@
 #include <linux/workqueue.h>
 #include <linux/sysfs.h>
 
-struct idletimer_tg_attr {
-	struct attribute attr;
-	ssize_t	(*show)(struct kobject *kobj,
-			struct attribute *attr, char *buf);
-};
-
 struct idletimer_tg {
 	struct list_head entry;
 	struct timer_list timer;
 	struct work_struct work;
 
 	struct kobject *kobj;
-	struct idletimer_tg_attr attr;
+	struct device_attribute attr;
 
 	unsigned int refcnt;
 };
@@ -78,7 +72,7 @@ struct idletimer_tg *__idletimer_tg_find_by_label(const char *label)
 	return NULL;
 }
 
-static ssize_t idletimer_tg_show(struct kobject *kobj, struct attribute *attr,
+static ssize_t idletimer_tg_show(struct device *dev, struct device_attribute *attr,
 				 char *buf)
 {
 	struct idletimer_tg *timer;
@@ -86,7 +80,7 @@ static ssize_t idletimer_tg_show(struct kobject *kobj, struct attribute *attr,
 
 	mutex_lock(&list_mutex);
 
-	timer =	__idletimer_tg_find_by_label(attr->name);
+	timer =	__idletimer_tg_find_by_label(attr->attr.name);
 	if (timer)
 		expires = timer->timer.expires;
 
diff --git a/net/netfilter/xt_gradm.c b/net/netfilter/xt_gradm.c
new file mode 100644
index 0000000..a7cb915
--- /dev/null
+++ b/net/netfilter/xt_gradm.c
@@ -0,0 +1,51 @@
+/*
+ *	gradm match for netfilter
+ *	Copyright (c) Zbigniew Krzystolik, 2010
+ *
+ *	This program is free software; you can redistribute it and/or modify
+ *	it under the terms of the GNU General Public License; either version
+ *	2 or 3 as published by the Free Software Foundation.
+ */
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/skbuff.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/grsecurity.h>
+#include <linux/netfilter/xt_gradm.h>
+
+static bool
+gradm_mt(const struct sk_buff *skb, struct xt_action_param *par)
+{
+	const struct xt_gradm_mtinfo *info = par->matchinfo;
+	bool retval = false;
+	if (gr_acl_is_enabled())
+		retval = true;
+	return retval ^ info->invflags;
+}
+
+static struct xt_match gradm_mt_reg __read_mostly = {
+		.name       = "gradm",
+		.revision   = 0,
+		.family     = NFPROTO_UNSPEC,
+		.match      = gradm_mt,
+		.matchsize  = XT_ALIGN(sizeof(struct xt_gradm_mtinfo)),
+		.me         = THIS_MODULE,
+};
+
+static int __init gradm_mt_init(void)
+{
+	return xt_register_match(&gradm_mt_reg);
+}
+
+static void __exit gradm_mt_exit(void)
+{
+	xt_unregister_match(&gradm_mt_reg);
+}
+
+module_init(gradm_mt_init);
+module_exit(gradm_mt_exit);
+MODULE_AUTHOR("Zbigniew Krzystolik <zbyniu@destrukcja.pl>");
+MODULE_DESCRIPTION("Xtables: Grsecurity RBAC match");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("ipt_gradm");
+MODULE_ALIAS("ip6t_gradm");
diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c
index 1786968..1ec6dac 100644
--- a/net/netfilter/xt_hashlimit.c
+++ b/net/netfilter/xt_hashlimit.c
@@ -869,11 +869,11 @@ static int __net_init hashlimit_proc_net_init(struct net *net)
 {
 	struct hashlimit_net *hashlimit_net = hashlimit_pernet(net);
 
-	hashlimit_net->ipt_hashlimit = proc_mkdir("ipt_hashlimit", net->proc_net);
+	hashlimit_net->ipt_hashlimit = proc_mkdir_restrict("ipt_hashlimit", net->proc_net);
 	if (!hashlimit_net->ipt_hashlimit)
 		return -ENOMEM;
 #if IS_ENABLED(CONFIG_IP6_NF_IPTABLES)
-	hashlimit_net->ip6t_hashlimit = proc_mkdir("ip6t_hashlimit", net->proc_net);
+	hashlimit_net->ip6t_hashlimit = proc_mkdir_restrict("ip6t_hashlimit", net->proc_net);
 	if (!hashlimit_net->ip6t_hashlimit) {
 		remove_proc_entry("ipt_hashlimit", net->proc_net);
 		return -ENOMEM;
diff --git a/net/netfilter/xt_recent.c b/net/netfilter/xt_recent.c
index d725a27..14b0c51 100644
--- a/net/netfilter/xt_recent.c
+++ b/net/netfilter/xt_recent.c
@@ -642,7 +642,7 @@ static int __net_init recent_proc_net_init(struct net *net)
 {
 	struct recent_net *recent_net = recent_pernet(net);
 
-	recent_net->xt_recent = proc_mkdir("xt_recent", net->proc_net);
+	recent_net->xt_recent = proc_mkdir_restrict("xt_recent", net->proc_net);
 	if (!recent_net->xt_recent)
 		return -ENOMEM;
 	return 0;
diff --git a/net/netfilter/xt_statistic.c b/net/netfilter/xt_statistic.c
index 11de55e..f25e448 100644
--- a/net/netfilter/xt_statistic.c
+++ b/net/netfilter/xt_statistic.c
@@ -19,7 +19,7 @@
 #include <linux/module.h>
 
 struct xt_statistic_priv {
-	atomic_t count;
+	atomic_unchecked_t count;
 } ____cacheline_aligned_in_smp;
 
 MODULE_LICENSE("GPL");
@@ -42,9 +42,9 @@ statistic_mt(const struct sk_buff *skb, struct xt_action_param *par)
 		break;
 	case XT_STATISTIC_MODE_NTH:
 		do {
-			oval = atomic_read(&info->master->count);
+			oval = atomic_read_unchecked(&info->master->count);
 			nval = (oval == info->u.nth.every) ? 0 : oval + 1;
-		} while (atomic_cmpxchg(&info->master->count, oval, nval) != oval);
+		} while (atomic_cmpxchg_unchecked(&info->master->count, oval, nval) != oval);
 		if (nval == 0)
 			ret = !ret;
 		break;
@@ -64,7 +64,7 @@ static int statistic_mt_check(const struct xt_mtchk_param *par)
 	info->master = kzalloc(sizeof(*info->master), GFP_KERNEL);
 	if (info->master == NULL)
 		return -ENOMEM;
-	atomic_set(&info->master->count, info->u.nth.count);
+	atomic_set_unchecked(&info->master->count, info->u.nth.count);
 
 	return 0;
 }
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index f48e3b3..e7b3936 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -287,7 +287,7 @@ static void netlink_overrun(struct sock *sk)
 			sk->sk_error_report(sk);
 		}
 	}
-	atomic_inc(&sk->sk_drops);
+	atomic_inc_unchecked(&sk->sk_drops);
 }
 
 static void netlink_rcv_wake(struct sock *sk)
@@ -2150,7 +2150,9 @@ errout_skb:
 
 int __netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
 			 const struct nlmsghdr *nlh,
-			 struct netlink_dump_control *control)
+			 struct netlink_dump_control *control,
+			 void *data,
+			 struct module *module)
 {
 	struct netlink_callback *cb;
 	struct sock *sk;
@@ -2173,7 +2175,7 @@ int __netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
 		goto error_unlock;
 	}
 	/* add reference of module which cb->dump belongs to */
-	if (!try_module_get(control->module)) {
+	if (!try_module_get(module)) {
 		ret = -EPROTONOSUPPORT;
 		goto error_unlock;
 	}
@@ -2184,8 +2186,8 @@ int __netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
 	cb->dump = control->dump;
 	cb->done = control->done;
 	cb->nlh = nlh;
-	cb->data = control->data;
-	cb->module = control->module;
+	cb->data = data;
+	cb->module = module;
 	cb->min_dump_alloc = control->min_dump_alloc;
 	cb->skb = skb;
 
@@ -2451,7 +2453,7 @@ static int netlink_seq_show(struct seq_file *seq, void *v)
 			   sk_wmem_alloc_get(s),
 			   nlk->cb_running,
 			   atomic_read(&s->sk_refcnt),
-			   atomic_read(&s->sk_drops),
+			   atomic_read_unchecked(&s->sk_drops),
 			   sock_i_ino(s)
 			);
 
@@ -2558,7 +2560,7 @@ static void __init netlink_add_usersock_entry(void)
 	netlink_table_ungrab();
 }
 
-static struct pernet_operations __net_initdata netlink_net_ops = {
+static struct pernet_operations __net_initconst netlink_net_ops = {
 	.init = netlink_net_init,
 	.exit = netlink_net_exit,
 };
diff --git a/net/netlink/diag.c b/net/netlink/diag.c
index 8dd836a..196d1cd 100644
--- a/net/netlink/diag.c
+++ b/net/netlink/diag.c
@@ -170,7 +170,7 @@ static int netlink_diag_handler_dump(struct sk_buff *skb, struct nlmsghdr *h)
 		return -EINVAL;
 
 	if (h->nlmsg_flags & NLM_F_DUMP) {
-		struct netlink_dump_control c = {
+		static struct netlink_dump_control c = {
 			.dump = netlink_diag_dump,
 		};
 		return netlink_dump_start(net->diag_nlsk, skb, h, &c);
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index a09132a..75aa387 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -571,28 +571,26 @@ static int genl_family_rcv_msg(struct genl_family *family,
 			return -EOPNOTSUPP;
 
 		if (!family->parallel_ops) {
-			struct netlink_dump_control c = {
-				.module = family->module,
-				/* we have const, but the netlink API doesn't */
-				.data = (void *)ops,
+			static struct netlink_dump_control c = {
 				.start = genl_lock_start,
 				.dump = genl_lock_dumpit,
 				.done = genl_lock_done,
 			};
+			/* we have const, but the netlink API doesn't */
+			void *data = (void *)ops;
 
 			genl_unlock();
-			rc = __netlink_dump_start(net->genl_sock, skb, nlh, &c);
+			rc = __netlink_dump_start(net->genl_sock, skb, nlh, &c, data, family->module);
 			genl_lock();
 
 		} else {
-			struct netlink_dump_control c = {
-				.module = family->module,
+			netlink_dump_control_no_const c = {
 				.start = ops->start,
 				.dump = ops->dumpit,
 				.done = ops->done,
 			};
 
-			rc = __netlink_dump_start(net->genl_sock, skb, nlh, &c);
+			rc = __netlink_dump_start(net->genl_sock, skb, nlh, &c, NULL, family->module);
 		}
 
 		return rc;
diff --git a/net/openvswitch/vport-geneve.c b/net/openvswitch/vport-geneve.c
index 1a1fcec..75173ca 100644
--- a/net/openvswitch/vport-geneve.c
+++ b/net/openvswitch/vport-geneve.c
@@ -111,12 +111,17 @@ static struct vport *geneve_create(const struct vport_parms *parms)
 	return ovs_netdev_link(vport, parms->name);
 }
 
+static netdev_tx_t geneve_send(struct sk_buff *skb)
+{
+	return dev_queue_xmit(skb);
+}
+
 static struct vport_ops ovs_geneve_vport_ops = {
 	.type		= OVS_VPORT_TYPE_GENEVE,
 	.create		= geneve_create,
 	.destroy	= ovs_netdev_tunnel_destroy,
 	.get_options	= geneve_get_options,
-	.send		= dev_queue_xmit,
+	.send		= geneve_send,
 };
 
 static int __init ovs_geneve_tnl_init(void)
diff --git a/net/openvswitch/vport-gre.c b/net/openvswitch/vport-gre.c
index 7f8897f..15b61a2 100644
--- a/net/openvswitch/vport-gre.c
+++ b/net/openvswitch/vport-gre.c
@@ -84,10 +84,15 @@ static struct vport *gre_create(const struct vport_parms *parms)
 	return ovs_netdev_link(vport, parms->name);
 }
 
+static netdev_tx_t gre_send(struct sk_buff *skb)
+{
+	return dev_queue_xmit(skb);
+}
+
 static struct vport_ops ovs_gre_vport_ops = {
 	.type		= OVS_VPORT_TYPE_GRE,
 	.create		= gre_create,
-	.send		= dev_queue_xmit,
+	.send		= gre_send,
 	.destroy	= ovs_netdev_tunnel_destroy,
 };
 
diff --git a/net/openvswitch/vport-internal_dev.c b/net/openvswitch/vport-internal_dev.c
index 7c8b90b..f7528aa 100644
--- a/net/openvswitch/vport-internal_dev.c
+++ b/net/openvswitch/vport-internal_dev.c
@@ -44,7 +44,7 @@ static struct internal_dev *internal_dev_priv(struct net_device *netdev)
 }
 
 /* Called with rcu_read_lock_bh. */
-static int internal_dev_xmit(struct sk_buff *skb, struct net_device *netdev)
+static netdev_tx_t internal_dev_xmit(struct sk_buff *skb, struct net_device *netdev)
 {
 	int len, err;
 
@@ -153,7 +153,7 @@ static const struct net_device_ops internal_dev_netdev_ops = {
 	.ndo_set_rx_headroom = internal_set_rx_headroom,
 };
 
-static struct rtnl_link_ops internal_dev_link_ops __read_mostly = {
+static struct rtnl_link_ops internal_dev_link_ops = {
 	.kind = "openvswitch",
 };
 
diff --git a/net/openvswitch/vport-netdev.c b/net/openvswitch/vport-netdev.c
index 4e39723..50265d9 100644
--- a/net/openvswitch/vport-netdev.c
+++ b/net/openvswitch/vport-netdev.c
@@ -204,11 +204,16 @@ struct vport *ovs_netdev_get_vport(struct net_device *dev)
 		return NULL;
 }
 
+static netdev_tx_t netdev_send(struct sk_buff *skb)
+{
+	return dev_queue_xmit(skb);
+}
+
 static struct vport_ops ovs_netdev_vport_ops = {
 	.type		= OVS_VPORT_TYPE_NETDEV,
 	.create		= netdev_create,
 	.destroy	= netdev_destroy,
-	.send		= dev_queue_xmit,
+	.send		= netdev_send,
 };
 
 int __init ovs_netdev_init(void)
diff --git a/net/openvswitch/vport-vxlan.c b/net/openvswitch/vport-vxlan.c
index 5eb7694..58d8f08 100644
--- a/net/openvswitch/vport-vxlan.c
+++ b/net/openvswitch/vport-vxlan.c
@@ -148,12 +148,17 @@ static struct vport *vxlan_create(const struct vport_parms *parms)
 	return ovs_netdev_link(vport, parms->name);
 }
 
+static netdev_tx_t vxlan_send(struct sk_buff *skb)
+{
+	return dev_queue_xmit(skb);
+}
+
 static struct vport_ops ovs_vxlan_netdev_vport_ops = {
 	.type			= OVS_VPORT_TYPE_VXLAN,
 	.create			= vxlan_create,
 	.destroy		= ovs_netdev_tunnel_destroy,
 	.get_options		= vxlan_get_options,
-	.send			= dev_queue_xmit,
+	.send			= vxlan_send,
 };
 
 static int __init ovs_vxlan_tnl_init(void)
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 18d0bec..8fdeb86 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -278,7 +278,7 @@ static int packet_direct_xmit(struct sk_buff *skb)
 
 	return ret;
 drop:
-	atomic_long_inc(&dev->tx_dropped);
+	atomic_long_inc_unchecked(&dev->tx_dropped);
 	kfree_skb(skb);
 	return NET_XMIT_DROP;
 }
@@ -1391,9 +1391,9 @@ static unsigned int fanout_demux_rollover(struct packet_fanout *f,
 		    packet_rcv_has_room(po_next, skb) == ROOM_NORMAL) {
 			if (i != j)
 				po->rollover->sock = i;
-			atomic_long_inc(&po->rollover->num);
+			atomic_long_inc_unchecked(&po->rollover->num);
 			if (room == ROOM_LOW)
-				atomic_long_inc(&po->rollover->num_huge);
+				atomic_long_inc_unchecked(&po->rollover->num_huge);
 			return i;
 		}
 
@@ -1401,7 +1401,7 @@ static unsigned int fanout_demux_rollover(struct packet_fanout *f,
 			i = 0;
 	} while (i != j);
 
-	atomic_long_inc(&po->rollover->num_failed);
+	atomic_long_inc_unchecked(&po->rollover->num_failed);
 	return idx;
 }
 
@@ -1656,9 +1656,9 @@ static int fanout_add(struct sock *sk, u16 id, u16 type_flags)
 		po->rollover = kzalloc(sizeof(*po->rollover), GFP_KERNEL);
 		if (!po->rollover)
 			return -ENOMEM;
-		atomic_long_set(&po->rollover->num, 0);
-		atomic_long_set(&po->rollover->num_huge, 0);
-		atomic_long_set(&po->rollover->num_failed, 0);
+		atomic_long_set_unchecked(&po->rollover->num, 0);
+		atomic_long_set_unchecked(&po->rollover->num_huge, 0);
+		atomic_long_set_unchecked(&po->rollover->num_failed, 0);
 	}
 
 	mutex_lock(&fanout_mutex);
@@ -2132,7 +2132,7 @@ static int packet_rcv(struct sk_buff *skb, struct net_device *dev,
 drop_n_acct:
 	spin_lock(&sk->sk_receive_queue.lock);
 	po->stats.stats1.tp_drops++;
-	atomic_inc(&sk->sk_drops);
+	atomic_inc_unchecked(&sk->sk_drops);
 	spin_unlock(&sk->sk_receive_queue.lock);
 
 drop_n_restore:
@@ -3849,7 +3849,7 @@ static int packet_getsockopt(struct socket *sock, int level, int optname,
 	case PACKET_HDRLEN:
 		if (len > sizeof(int))
 			len = sizeof(int);
-		if (copy_from_user(&val, optval, len))
+		if (len > sizeof(val) || copy_from_user(&val, optval, len))
 			return -EFAULT;
 		switch (val) {
 		case TPACKET_V1:
@@ -3884,9 +3884,9 @@ static int packet_getsockopt(struct socket *sock, int level, int optname,
 	case PACKET_ROLLOVER_STATS:
 		if (!po->rollover)
 			return -EINVAL;
-		rstats.tp_all = atomic_long_read(&po->rollover->num);
-		rstats.tp_huge = atomic_long_read(&po->rollover->num_huge);
-		rstats.tp_failed = atomic_long_read(&po->rollover->num_failed);
+		rstats.tp_all = atomic_long_read_unchecked(&po->rollover->num);
+		rstats.tp_huge = atomic_long_read_unchecked(&po->rollover->num_huge);
+		rstats.tp_failed = atomic_long_read_unchecked(&po->rollover->num_failed);
 		data = &rstats;
 		lv = sizeof(rstats);
 		break;
@@ -3904,7 +3904,7 @@ static int packet_getsockopt(struct socket *sock, int level, int optname,
 		len = lv;
 	if (put_user(len, optlen))
 		return -EFAULT;
-	if (copy_to_user(optval, data, len))
+	if (len > sizeof(st) || copy_to_user(optval, data, len))
 		return -EFAULT;
 	return 0;
 }
diff --git a/net/packet/diag.c b/net/packet/diag.c
index 0ed68f0..54c1dbe 100644
--- a/net/packet/diag.c
+++ b/net/packet/diag.c
@@ -236,7 +236,7 @@ static int packet_diag_handler_dump(struct sk_buff *skb, struct nlmsghdr *h)
 		return -EINVAL;
 
 	if (h->nlmsg_flags & NLM_F_DUMP) {
-		struct netlink_dump_control c = {
+		static struct netlink_dump_control c = {
 			.dump = packet_diag_dump,
 		};
 		return netlink_dump_start(net->diag_nlsk, skb, h, &c);
diff --git a/net/packet/internal.h b/net/packet/internal.h
index 9ee4631..6b79352 100644
--- a/net/packet/internal.h
+++ b/net/packet/internal.h
@@ -93,9 +93,9 @@ struct packet_fanout {
 struct packet_rollover {
 	int			sock;
 	struct rcu_head		rcu;
-	atomic_long_t		num;
-	atomic_long_t		num_huge;
-	atomic_long_t		num_failed;
+	atomic_long_unchecked_t	num;
+	atomic_long_unchecked_t	num_huge;
+	atomic_long_unchecked_t	num_failed;
 #define ROLLOVER_HLEN	(L1_CACHE_BYTES / sizeof(u32))
 	u32			history[ROLLOVER_HLEN] ____cacheline_aligned;
 } ____cacheline_aligned_in_smp;
diff --git a/net/phonet/pep.c b/net/phonet/pep.c
index 850a86c..8884a37 100644
--- a/net/phonet/pep.c
+++ b/net/phonet/pep.c
@@ -388,7 +388,7 @@ static int pipe_do_rcv(struct sock *sk, struct sk_buff *skb)
 
 	case PNS_PEP_CTRL_REQ:
 		if (skb_queue_len(&pn->ctrlreq_queue) >= PNPIPE_CTRLREQ_MAX) {
-			atomic_inc(&sk->sk_drops);
+			atomic_inc_unchecked(&sk->sk_drops);
 			break;
 		}
 		__skb_pull(skb, 4);
@@ -409,7 +409,7 @@ static int pipe_do_rcv(struct sock *sk, struct sk_buff *skb)
 		}
 
 		if (pn->rx_credits == 0) {
-			atomic_inc(&sk->sk_drops);
+			atomic_inc_unchecked(&sk->sk_drops);
 			err = -ENOBUFS;
 			break;
 		}
@@ -579,7 +579,7 @@ static int pipe_handler_do_rcv(struct sock *sk, struct sk_buff *skb)
 		}
 
 		if (pn->rx_credits == 0) {
-			atomic_inc(&sk->sk_drops);
+			atomic_inc_unchecked(&sk->sk_drops);
 			err = NET_RX_DROP;
 			break;
 		}
diff --git a/net/phonet/socket.c b/net/phonet/socket.c
index ffd5f22..94a18ec 100644
--- a/net/phonet/socket.c
+++ b/net/phonet/socket.c
@@ -613,7 +613,7 @@ static int pn_sock_seq_show(struct seq_file *seq, void *v)
 			from_kuid_munged(seq_user_ns(seq), sock_i_uid(sk)),
 			sock_i_ino(sk),
 			atomic_read(&sk->sk_refcnt), sk,
-			atomic_read(&sk->sk_drops));
+			atomic_read_unchecked(&sk->sk_drops));
 	}
 	seq_pad(seq, '\n');
 	return 0;
diff --git a/net/phonet/sysctl.c b/net/phonet/sysctl.c
index c02a8c4..3c5b600 100644
--- a/net/phonet/sysctl.c
+++ b/net/phonet/sysctl.c
@@ -67,7 +67,7 @@ static int proc_local_port_range(struct ctl_table *table, int write,
 {
 	int ret;
 	int range[2] = {local_port_range[0], local_port_range[1]};
-	struct ctl_table tmp = {
+	ctl_table_no_const tmp = {
 		.data = &range,
 		.maxlen = sizeof(range),
 		.mode = table->mode,
diff --git a/net/rds/cong.c b/net/rds/cong.c
index 6641bcf..578082a 100644
--- a/net/rds/cong.c
+++ b/net/rds/cong.c
@@ -78,7 +78,7 @@
  * finds that the saved generation number is smaller than the global generation
  * number, it wakes up the process.
  */
-static atomic_t		rds_cong_generation = ATOMIC_INIT(0);
+static atomic_unchecked_t		rds_cong_generation = ATOMIC_INIT(0);
 
 /*
  * Congestion monitoring
@@ -247,7 +247,7 @@ void rds_cong_map_updated(struct rds_cong_map *map, uint64_t portmask)
 	rdsdebug("waking map %p for %pI4\n",
 	  map, &map->m_addr);
 	rds_stats_inc(s_cong_update_received);
-	atomic_inc(&rds_cong_generation);
+	atomic_inc_unchecked(&rds_cong_generation);
 	if (waitqueue_active(&map->m_waitq))
 		wake_up(&map->m_waitq);
 	if (waitqueue_active(&rds_poll_waitq))
@@ -273,7 +273,7 @@ EXPORT_SYMBOL_GPL(rds_cong_map_updated);
 
 int rds_cong_updated_since(unsigned long *recent)
 {
-	unsigned long gen = atomic_read(&rds_cong_generation);
+	unsigned long gen = atomic_read_unchecked(&rds_cong_generation);
 
 	if (likely(*recent == gen))
 		return 0;
diff --git a/net/rds/ib.h b/net/rds/ib.h
index 627fb79..e0856c7 100644
--- a/net/rds/ib.h
+++ b/net/rds/ib.h
@@ -153,7 +153,7 @@ struct rds_ib_connection {
 	/* sending acks */
 	unsigned long		i_ack_flags;
 #ifdef KERNEL_HAS_ATOMIC64
-	atomic64_t		i_ack_next;	/* next ACK to send */
+	atomic64_unchecked_t	i_ack_next;	/* next ACK to send */
 #else
 	spinlock_t		i_ack_lock;	/* protect i_ack_next */
 	u64			i_ack_next;	/* next ACK to send */
diff --git a/net/rds/ib_cm.c b/net/rds/ib_cm.c
index 310cabc..76b03d2 100644
--- a/net/rds/ib_cm.c
+++ b/net/rds/ib_cm.c
@@ -830,7 +830,7 @@ void rds_ib_conn_shutdown(struct rds_connection *conn)
 	/* Clear the ACK state */
 	clear_bit(IB_ACK_IN_FLIGHT, &ic->i_ack_flags);
 #ifdef KERNEL_HAS_ATOMIC64
-	atomic64_set(&ic->i_ack_next, 0);
+	atomic64_set_unchecked(&ic->i_ack_next, 0);
 #else
 	ic->i_ack_next = 0;
 #endif
diff --git a/net/rds/ib_recv.c b/net/rds/ib_recv.c
index abc8cc8..ef9adf9 100644
--- a/net/rds/ib_recv.c
+++ b/net/rds/ib_recv.c
@@ -623,7 +623,7 @@ static u64 rds_ib_get_ack(struct rds_ib_connection *ic)
 #else
 void rds_ib_set_ack(struct rds_ib_connection *ic, u64 seq, int ack_required)
 {
-	atomic64_set(&ic->i_ack_next, seq);
+	atomic64_set_unchecked(&ic->i_ack_next, seq);
 	if (ack_required) {
 		smp_mb__before_atomic();
 		set_bit(IB_ACK_REQUESTED, &ic->i_ack_flags);
@@ -635,7 +635,7 @@ static u64 rds_ib_get_ack(struct rds_ib_connection *ic)
 	clear_bit(IB_ACK_REQUESTED, &ic->i_ack_flags);
 	smp_mb__after_atomic();
 
-	return atomic64_read(&ic->i_ack_next);
+	return atomic64_read_unchecked(&ic->i_ack_next);
 }
 #endif
 
diff --git a/net/rds/rds.h b/net/rds/rds.h
index 80256b0..dde73be 100644
--- a/net/rds/rds.h
+++ b/net/rds/rds.h
@@ -464,7 +464,7 @@ struct rds_transport {
 	void (*sync_mr)(void *trans_private, int direction);
 	void (*free_mr)(void *trans_private, int invalidate);
 	void (*flush_mrs)(void);
-};
+} __do_const;
 
 struct rds_sock {
 	struct sock		rs_sk;
diff --git a/net/rds/tcp.c b/net/rds/tcp.c
index 86187da..0a3d027 100644
--- a/net/rds/tcp.c
+++ b/net/rds/tcp.c
@@ -59,7 +59,7 @@ static int rds_tcp_skbuf_handler(struct ctl_table *ctl, int write,
 int rds_tcp_min_sndbuf = SOCK_MIN_SNDBUF;
 int rds_tcp_min_rcvbuf = SOCK_MIN_RCVBUF;
 
-static struct ctl_table rds_tcp_sysctl_table[] = {
+static ctl_table_no_const rds_tcp_sysctl_table[] = {
 #define	RDS_TCP_SNDBUF	0
 	{
 		.procname       = "rds_tcp_sndbuf",
@@ -88,7 +88,7 @@ void rds_tcp_nonagle(struct socket *sock)
 	int val = 1;
 
 	set_fs(KERNEL_DS);
-	sock->ops->setsockopt(sock, SOL_TCP, TCP_NODELAY, (char __user *)&val,
+	sock->ops->setsockopt(sock, SOL_TCP, TCP_NODELAY, (char __force_user *)&val,
 			      sizeof(val));
 	set_fs(oldfs);
 }
@@ -340,7 +340,7 @@ void rds_tcp_accept_work(struct sock *sk)
 static __net_init int rds_tcp_init_net(struct net *net)
 {
 	struct rds_tcp_net *rtn = net_generic(net, rds_tcp_netid);
-	struct ctl_table *tbl;
+	ctl_table_no_const *tbl;
 	int err = 0;
 
 	memset(rtn, 0, sizeof(*rtn));
diff --git a/net/rds/tcp.h b/net/rds/tcp.h
index 41c2283..6cad9c5 100644
--- a/net/rds/tcp.h
+++ b/net/rds/tcp.h
@@ -17,9 +17,9 @@ struct rds_tcp_connection {
 	 */
 	struct mutex		t_conn_lock;
 	struct socket		*t_sock;
-	void			*t_orig_write_space;
-	void			*t_orig_data_ready;
-	void			*t_orig_state_change;
+	void			(*t_orig_write_space)(struct sock *sk);
+	void			(*t_orig_data_ready)(struct sock *sk);
+	void			(*t_orig_state_change)(struct sock *sk);
 
 	struct rds_tcp_incoming	*t_tinc;
 	size_t			t_tinc_hdr_rem;
diff --git a/net/rds/tcp_send.c b/net/rds/tcp_send.c
index 2894e60..f9c01ac 100644
--- a/net/rds/tcp_send.c
+++ b/net/rds/tcp_send.c
@@ -43,7 +43,7 @@ static void rds_tcp_cork(struct socket *sock, int val)
 
 	oldfs = get_fs();
 	set_fs(KERNEL_DS);
-	sock->ops->setsockopt(sock, SOL_TCP, TCP_CORK, (char __user *)&val,
+	sock->ops->setsockopt(sock, SOL_TCP, TCP_CORK, (char __force_user *)&val,
 			      sizeof(val));
 	set_fs(oldfs);
 }
diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c
index 9d935fa..5f6db3c 100644
--- a/net/rxrpc/af_rxrpc.c
+++ b/net/rxrpc/af_rxrpc.c
@@ -40,7 +40,7 @@ static const struct proto_ops rxrpc_rpc_ops;
 u32 rxrpc_epoch;
 
 /* current debugging ID */
-atomic_t rxrpc_debug_id;
+atomic_unchecked_t rxrpc_debug_id;
 
 /* count of skbs currently in use */
 atomic_t rxrpc_n_skbs;
diff --git a/net/rxrpc/ar-ack.c b/net/rxrpc/ar-ack.c
index 16d9670..3f3ab1a 100644
--- a/net/rxrpc/ar-ack.c
+++ b/net/rxrpc/ar-ack.c
@@ -223,7 +223,7 @@ static void rxrpc_resend(struct rxrpc_call *call)
 
 	_enter("{%d,%d,%d,%d},",
 	       call->acks_hard, call->acks_unacked,
-	       atomic_read(&call->sequence),
+	       atomic_read_unchecked(&call->sequence),
 	       CIRC_CNT(call->acks_head, call->acks_tail, call->acks_winsz));
 
 	stop = false;
@@ -246,7 +246,7 @@ static void rxrpc_resend(struct rxrpc_call *call)
 			sp->need_resend = false;
 
 			/* each Tx packet has a new serial number */
-			sp->hdr.serial = atomic_inc_return(&call->conn->serial);
+			sp->hdr.serial = atomic_inc_return_unchecked(&call->conn->serial);
 
 			whdr = (struct rxrpc_wire_header *)txb->head;
 			whdr->serial = htonl(sp->hdr.serial);
@@ -450,7 +450,7 @@ static void rxrpc_rotate_tx_window(struct rxrpc_call *call, u32 hard)
  */
 static void rxrpc_clear_tx_window(struct rxrpc_call *call)
 {
-	rxrpc_rotate_tx_window(call, atomic_read(&call->sequence));
+	rxrpc_rotate_tx_window(call, atomic_read_unchecked(&call->sequence));
 }
 
 /*
@@ -673,7 +673,7 @@ process_further:
 
 		latest = sp->hdr.serial;
 		hard = ntohl(ack.firstPacket);
-		tx = atomic_read(&call->sequence);
+		tx = atomic_read_unchecked(&call->sequence);
 
 		_proto("Rx ACK %%%u { m=%hu f=#%u p=#%u s=%%%u r=%s n=%u }",
 		       latest,
@@ -1206,7 +1206,7 @@ void rxrpc_process_call(struct work_struct *work)
 	goto maybe_reschedule;
 
 send_ACK_with_skew:
-	ack.maxSkew = htons(atomic_read(&call->conn->hi_serial) -
+	ack.maxSkew = htons(atomic_read_unchecked(&call->conn->hi_serial) -
 			    ntohl(ack.serial));
 send_ACK:
 	mtu = call->conn->trans->peer->if_mtu;
@@ -1218,7 +1218,7 @@ send_ACK:
 	ackinfo.rxMTU	= htonl(rxrpc_rx_mtu);
 	ackinfo.jumbo_max = htonl(rxrpc_rx_jumbo_max);
 
-	serial = atomic_inc_return(&call->conn->serial);
+	serial = atomic_inc_return_unchecked(&call->conn->serial);
 	whdr.serial = htonl(serial);
 	_proto("Tx ACK %%%u { m=%hu f=#%u p=#%u s=%%%u r=%s n=%u }",
 	       serial,
@@ -1237,7 +1237,7 @@ send_ACK:
 send_message:
 	_debug("send message");
 
-	serial = atomic_inc_return(&call->conn->serial);
+	serial = atomic_inc_return_unchecked(&call->conn->serial);
 	whdr.serial = htonl(serial);
 	_proto("Tx %s %%%u", rxrpc_pkts[whdr.type], serial);
 send_message_2:
diff --git a/net/rxrpc/ar-call.c b/net/rxrpc/ar-call.c
index 7c8d300..570ba4f 100644
--- a/net/rxrpc/ar-call.c
+++ b/net/rxrpc/ar-call.c
@@ -229,7 +229,7 @@ static struct rxrpc_call *rxrpc_alloc_call(gfp_t gfp)
 	spin_lock_init(&call->lock);
 	rwlock_init(&call->state_lock);
 	atomic_set(&call->usage, 1);
-	call->debug_id = atomic_inc_return(&rxrpc_debug_id);
+	call->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id);
 	call->state = RXRPC_CALL_CLIENT_SEND_REQUEST;
 
 	memset(&call->sock_node, 0xed, sizeof(call->sock_node));
diff --git a/net/rxrpc/ar-connection.c b/net/rxrpc/ar-connection.c
index 9942da1..1559525 100644
--- a/net/rxrpc/ar-connection.c
+++ b/net/rxrpc/ar-connection.c
@@ -210,7 +210,7 @@ static struct rxrpc_connection *rxrpc_alloc_connection(gfp_t gfp)
 		rwlock_init(&conn->lock);
 		spin_lock_init(&conn->state_lock);
 		atomic_set(&conn->usage, 1);
-		conn->debug_id = atomic_inc_return(&rxrpc_debug_id);
+		conn->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id);
 		conn->avail_calls = RXRPC_MAXCALLS;
 		conn->size_align = 4;
 		conn->header_size = sizeof(struct rxrpc_wire_header);
diff --git a/net/rxrpc/ar-connevent.c b/net/rxrpc/ar-connevent.c
index 1bdaaed..899cdff3 100644
--- a/net/rxrpc/ar-connevent.c
+++ b/net/rxrpc/ar-connevent.c
@@ -110,7 +110,7 @@ static int rxrpc_abort_connection(struct rxrpc_connection *conn,
 
 	len = iov[0].iov_len + iov[1].iov_len;
 
-	serial = atomic_inc_return(&conn->serial);
+	serial = atomic_inc_return_unchecked(&conn->serial);
 	whdr.serial = htonl(serial);
 	_proto("Tx CONN ABORT %%%u { %d }", serial, abort_code);
 
diff --git a/net/rxrpc/ar-input.c b/net/rxrpc/ar-input.c
index 63ed75c..bba8e0c 100644
--- a/net/rxrpc/ar-input.c
+++ b/net/rxrpc/ar-input.c
@@ -330,9 +330,9 @@ void rxrpc_fast_process_packet(struct rxrpc_call *call, struct sk_buff *skb)
 
 	/* track the latest serial number on this connection for ACK packet
 	 * information */
-	hi_serial = atomic_read(&call->conn->hi_serial);
+	hi_serial = atomic_read_unchecked(&call->conn->hi_serial);
 	while (sp->hdr.serial > hi_serial)
-		hi_serial = atomic_cmpxchg(&call->conn->hi_serial, hi_serial,
+		hi_serial = atomic_cmpxchg_unchecked(&call->conn->hi_serial, hi_serial,
 					   sp->hdr.serial);
 
 	/* request ACK generation for any ACK or DATA packet that requests
diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
index cd6cdbe..8d4020f 100644
--- a/net/rxrpc/ar-internal.h
+++ b/net/rxrpc/ar-internal.h
@@ -292,8 +292,8 @@ struct rxrpc_connection {
 	int			error;		/* error code for local abort */
 	int			debug_id;	/* debug ID for printks */
 	unsigned int		call_counter;	/* call ID counter */
-	atomic_t		serial;		/* packet serial number counter */
-	atomic_t		hi_serial;	/* highest serial number received */
+	atomic_unchecked_t	serial;		/* packet serial number counter */
+	atomic_unchecked_t	hi_serial;	/* highest serial number received */
 	u8			avail_calls;	/* number of calls available */
 	u8			size_align;	/* data size alignment (for security) */
 	u8			header_size;	/* rxrpc + security header size */
@@ -398,7 +398,7 @@ struct rxrpc_call {
 	spinlock_t		lock;
 	rwlock_t		state_lock;	/* lock for state transition */
 	atomic_t		usage;
-	atomic_t		sequence;	/* Tx data packet sequence counter */
+	atomic_unchecked_t	sequence;	/* Tx data packet sequence counter */
 	u32			abort_code;	/* local/remote abort code */
 	enum rxrpc_call_state	state : 8;	/* current state of call */
 	int			debug_id;	/* debug ID for printks */
@@ -465,7 +465,7 @@ static inline void rxrpc_abort_call(struct rxrpc_call *call, u32 abort_code)
  */
 extern atomic_t rxrpc_n_skbs;
 extern u32 rxrpc_epoch;
-extern atomic_t rxrpc_debug_id;
+extern atomic_unchecked_t rxrpc_debug_id;
 extern struct workqueue_struct *rxrpc_workqueue;
 
 /*
diff --git a/net/rxrpc/ar-local.c b/net/rxrpc/ar-local.c
index 4e1e6db..1e86180 100644
--- a/net/rxrpc/ar-local.c
+++ b/net/rxrpc/ar-local.c
@@ -53,7 +53,7 @@ struct rxrpc_local *rxrpc_alloc_local(struct sockaddr_rxrpc *srx)
 		spin_lock_init(&local->lock);
 		rwlock_init(&local->services_lock);
 		atomic_set(&local->usage, 1);
-		local->debug_id = atomic_inc_return(&rxrpc_debug_id);
+		local->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id);
 		memcpy(&local->srx, srx, sizeof(*srx));
 	}
 
diff --git a/net/rxrpc/ar-output.c b/net/rxrpc/ar-output.c
index d36fb6e..2ef98a0 100644
--- a/net/rxrpc/ar-output.c
+++ b/net/rxrpc/ar-output.c
@@ -672,13 +672,13 @@ static int rxrpc_send_data(struct rxrpc_sock *rx,
 					memset(skb_put(skb, pad), 0, pad);
 			}
 
-			seq = atomic_inc_return(&call->sequence);
+			seq = atomic_inc_return_unchecked(&call->sequence);
 
 			sp->hdr.epoch	= conn->epoch;
 			sp->hdr.cid	= call->cid;
 			sp->hdr.callNumber = call->call_id;
 			sp->hdr.seq	= seq;
-			sp->hdr.serial	= atomic_inc_return(&conn->serial);
+			sp->hdr.serial	= atomic_inc_return_unchecked(&conn->serial);
 			sp->hdr.type	= RXRPC_PACKET_TYPE_DATA;
 			sp->hdr.userStatus = 0;
 			sp->hdr.securityIndex = conn->security_ix;
diff --git a/net/rxrpc/ar-peer.c b/net/rxrpc/ar-peer.c
index dc089b1..21889d9 100644
--- a/net/rxrpc/ar-peer.c
+++ b/net/rxrpc/ar-peer.c
@@ -72,7 +72,7 @@ static struct rxrpc_peer *rxrpc_alloc_peer(struct sockaddr_rxrpc *srx,
 		INIT_LIST_HEAD(&peer->error_targets);
 		spin_lock_init(&peer->lock);
 		atomic_set(&peer->usage, 1);
-		peer->debug_id = atomic_inc_return(&rxrpc_debug_id);
+		peer->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id);
 		memcpy(&peer->srx, srx, sizeof(*srx));
 
 		rxrpc_assess_MTU_size(peer);
diff --git a/net/rxrpc/ar-proc.c b/net/rxrpc/ar-proc.c
index 525b2ba..d9373f8 100644
--- a/net/rxrpc/ar-proc.c
+++ b/net/rxrpc/ar-proc.c
@@ -164,8 +164,8 @@ static int rxrpc_connection_seq_show(struct seq_file *seq, void *v)
 		   atomic_read(&conn->usage),
 		   rxrpc_conn_states[conn->state],
 		   key_serial(conn->key),
-		   atomic_read(&conn->serial),
-		   atomic_read(&conn->hi_serial));
+		   atomic_read_unchecked(&conn->serial),
+		   atomic_read_unchecked(&conn->hi_serial));
 
 	return 0;
 }
diff --git a/net/rxrpc/ar-transport.c b/net/rxrpc/ar-transport.c
index 66a1a56..01f6f0b 100644
--- a/net/rxrpc/ar-transport.c
+++ b/net/rxrpc/ar-transport.c
@@ -52,7 +52,7 @@ static struct rxrpc_transport *rxrpc_alloc_transport(struct rxrpc_local *local,
 		rwlock_init(&trans->conn_lock);
 		atomic_set(&trans->usage, 1);
 		trans->conn_idcounter = peer->srx.srx_service << 16;
-		trans->debug_id = atomic_inc_return(&rxrpc_debug_id);
+		trans->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id);
 
 		if (peer->srx.transport.family == AF_INET) {
 			switch (peer->srx.transport_type) {
diff --git a/net/rxrpc/rxkad.c b/net/rxrpc/rxkad.c
index f0aeb81..e0f0593 100644
--- a/net/rxrpc/rxkad.c
+++ b/net/rxrpc/rxkad.c
@@ -633,7 +633,7 @@ static int rxkad_issue_challenge(struct rxrpc_connection *conn)
 
 	len = iov[0].iov_len + iov[1].iov_len;
 
-	serial = atomic_inc_return(&conn->serial);
+	serial = atomic_inc_return_unchecked(&conn->serial);
 	whdr.serial = htonl(serial);
 	_proto("Tx CHALLENGE %%%u", serial);
 
@@ -687,7 +687,7 @@ static int rxkad_send_response(struct rxrpc_connection *conn,
 
 	len = iov[0].iov_len + iov[1].iov_len + iov[2].iov_len;
 
-	serial = atomic_inc_return(&conn->serial);
+	serial = atomic_inc_return_unchecked(&conn->serial);
 	whdr.serial = htonl(serial);
 	_proto("Tx RESPONSE %%%u", serial);
 
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 80742ed..c76a9c4 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -352,7 +352,7 @@ void netif_carrier_on(struct net_device *dev)
 	if (test_and_clear_bit(__LINK_STATE_NOCARRIER, &dev->state)) {
 		if (dev->reg_state == NETREG_UNINITIALIZED)
 			return;
-		atomic_inc(&dev->carrier_changes);
+		atomic_inc_unchecked(&dev->carrier_changes);
 		linkwatch_fire_event(dev);
 		if (netif_running(dev))
 			__netdev_watchdog_up(dev);
@@ -371,7 +371,7 @@ void netif_carrier_off(struct net_device *dev)
 	if (!test_and_set_bit(__LINK_STATE_NOCARRIER, &dev->state)) {
 		if (dev->reg_state == NETREG_UNINITIALIZED)
 			return;
-		atomic_inc(&dev->carrier_changes);
+		atomic_inc_unchecked(&dev->carrier_changes);
 		linkwatch_fire_event(dev);
 	}
 }
diff --git a/net/sched/sch_tbf.c b/net/sched/sch_tbf.c
index c2fbde7..fedcaf4 100644
--- a/net/sched/sch_tbf.c
+++ b/net/sched/sch_tbf.c
@@ -161,7 +161,8 @@ static int tbf_segment(struct sk_buff *skb, struct Qdisc *sch)
 	struct sk_buff *segs, *nskb;
 	netdev_features_t features = netif_skb_features(skb);
 	unsigned int len = 0, prev_len = qdisc_pkt_len(skb);
-	int ret, nb;
+	int ret;
+	unsigned int nb;
 
 	segs = skb_gso_segment(skb, features & ~NETIF_F_GSO_MASK);
 
@@ -184,8 +185,10 @@ static int tbf_segment(struct sk_buff *skb, struct Qdisc *sch)
 		segs = nskb;
 	}
 	sch->q.qlen += nb;
-	if (nb > 1)
-		qdisc_tree_reduce_backlog(sch, 1 - nb, prev_len - len);
+	if (nb > 1) {
+		nb--;
+		qdisc_tree_reduce_backlog(sch, -nb, prev_len - len);
+	}
 	consume_skb(skb);
 	return nb > 0 ? NET_XMIT_SUCCESS : NET_XMIT_DROP;
 }
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index ce46f1c..0a4e659 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -989,7 +989,7 @@ static const struct inet6_protocol sctpv6_protocol = {
 	.flags        = INET6_PROTO_NOPOLICY | INET6_PROTO_FINAL,
 };
 
-static struct sctp_af sctp_af_inet6 = {
+static struct sctp_af sctp_af_inet6 __read_only = {
 	.sa_family	   = AF_INET6,
 	.sctp_xmit	   = sctp_v6_xmit,
 	.setsockopt	   = ipv6_setsockopt,
@@ -1046,7 +1046,7 @@ void sctp_v6_pf_init(void)
 
 void sctp_v6_pf_exit(void)
 {
-	list_del(&sctp_af_inet6.list);
+	pax_list_del(&sctp_af_inet6.list);
 }
 
 /* Initialize IPv6 support and register with socket layer.  */
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index d3d50da..55e871e 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -859,8 +859,10 @@ int sctp_register_af(struct sctp_af *af)
 		return 0;
 	}
 
+	pax_open_kernel();
 	INIT_LIST_HEAD(&af->list);
-	list_add_tail(&af->list, &sctp_address_families);
+	pax_close_kernel();
+	pax_list_add_tail(&af->list, &sctp_address_families);
 	return 1;
 }
 
@@ -1062,7 +1064,7 @@ static const struct net_protocol sctp_protocol = {
 };
 
 /* IPv4 address related functions.  */
-static struct sctp_af sctp_af_inet = {
+static struct sctp_af sctp_af_inet __read_only = {
 	.sa_family	   = AF_INET,
 	.sctp_xmit	   = sctp_v4_xmit,
 	.setsockopt	   = ip_setsockopt,
@@ -1146,7 +1148,7 @@ static void sctp_v4_pf_init(void)
 
 static void sctp_v4_pf_exit(void)
 {
-	list_del(&sctp_af_inet.list);
+	pax_list_del(&sctp_af_inet.list);
 }
 
 static int sctp_v4_protosw_init(void)
diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index 41b081a..cfea9d6 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -444,7 +444,7 @@ static void sctp_generate_sack_event(unsigned long data)
 	sctp_generate_timeout_event(asoc, SCTP_EVENT_TIMEOUT_SACK);
 }
 
-sctp_timer_event_t *sctp_timer_events[SCTP_NUM_TIMEOUT_TYPES] = {
+sctp_timer_event_t * const sctp_timer_events[SCTP_NUM_TIMEOUT_TYPES] = {
 	NULL,
 	sctp_generate_t1_cookie_event,
 	sctp_generate_t1_init_event,
@@ -1095,7 +1095,7 @@ int sctp_do_sm(struct net *net, sctp_event_t event_type, sctp_subtype_t subtype,
 	const sctp_sm_table_entry_t *state_fn;
 	sctp_disposition_t status;
 	int error = 0;
-	typedef const char *(printfn_t)(sctp_subtype_t);
+	typedef const char *(printfn_t)(const sctp_subtype_t);
 	static printfn_t *table[] = {
 		NULL, sctp_cname, sctp_tname, sctp_oname, sctp_pname,
 	};
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 878d28e..09a9b63 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -2190,11 +2190,13 @@ static int sctp_setsockopt_events(struct sock *sk, char __user *optval,
 {
 	struct sctp_association *asoc;
 	struct sctp_ulpevent *event;
+	struct sctp_event_subscribe subscribe;
 
 	if (optlen > sizeof(struct sctp_event_subscribe))
 		return -EINVAL;
-	if (copy_from_user(&sctp_sk(sk)->subscribe, optval, optlen))
+	if (copy_from_user(&subscribe, optval, optlen))
 		return -EFAULT;
+	sctp_sk(sk)->subscribe = subscribe;
 
 	/* At the time when a user app subscribes to SCTP_SENDER_DRY_EVENT,
 	 * if there is no data to be sent or retransmit, the stack will
@@ -4369,13 +4371,16 @@ static int sctp_getsockopt_disable_fragments(struct sock *sk, int len,
 static int sctp_getsockopt_events(struct sock *sk, int len, char __user *optval,
 				  int __user *optlen)
 {
+	struct sctp_event_subscribe subscribe;
+
 	if (len <= 0)
 		return -EINVAL;
 	if (len > sizeof(struct sctp_event_subscribe))
 		len = sizeof(struct sctp_event_subscribe);
 	if (put_user(len, optlen))
 		return -EFAULT;
-	if (copy_to_user(optval, &sctp_sk(sk)->subscribe, len))
+	subscribe = sctp_sk(sk)->subscribe;
+	if (copy_to_user(optval, &subscribe, len))
 		return -EFAULT;
 	return 0;
 }
@@ -4393,6 +4398,8 @@ static int sctp_getsockopt_events(struct sock *sk, int len, char __user *optval,
  */
 static int sctp_getsockopt_autoclose(struct sock *sk, int len, char __user *optval, int __user *optlen)
 {
+	__u32 autoclose;
+
 	/* Applicable to UDP-style socket only */
 	if (sctp_style(sk, TCP))
 		return -EOPNOTSUPP;
@@ -4401,7 +4408,8 @@ static int sctp_getsockopt_autoclose(struct sock *sk, int len, char __user *optv
 	len = sizeof(int);
 	if (put_user(len, optlen))
 		return -EFAULT;
-	if (copy_to_user(optval, &sctp_sk(sk)->autoclose, sizeof(int)))
+	autoclose = sctp_sk(sk)->autoclose;
+	if (copy_to_user(optval, &autoclose, sizeof(int)))
 		return -EFAULT;
 	return 0;
 }
@@ -4775,12 +4783,15 @@ static int sctp_getsockopt_delayed_ack(struct sock *sk, int len,
  */
 static int sctp_getsockopt_initmsg(struct sock *sk, int len, char __user *optval, int __user *optlen)
 {
+	struct sctp_initmsg initmsg;
+
 	if (len < sizeof(struct sctp_initmsg))
 		return -EINVAL;
 	len = sizeof(struct sctp_initmsg);
 	if (put_user(len, optlen))
 		return -EFAULT;
-	if (copy_to_user(optval, &sctp_sk(sk)->initmsg, len))
+	initmsg = sctp_sk(sk)->initmsg;
+	if (copy_to_user(optval, &initmsg, len))
 		return -EFAULT;
 	return 0;
 }
@@ -4821,6 +4832,8 @@ static int sctp_getsockopt_peer_addrs(struct sock *sk, int len,
 			      ->addr_to_user(sp, &temp);
 		if (space_left < addrlen)
 			return -ENOMEM;
+		if (addrlen > sizeof(temp) || addrlen < 0)
+			return -EFAULT;
 		if (copy_to_user(to, &temp, addrlen))
 			return -EFAULT;
 		to += addrlen;
diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c
index daf8554..4ab495b 100644
--- a/net/sctp/sysctl.c
+++ b/net/sctp/sysctl.c
@@ -324,7 +324,7 @@ static int proc_sctp_do_hmac_alg(struct ctl_table *ctl, int write,
 				loff_t *ppos)
 {
 	struct net *net = current->nsproxy->net_ns;
-	struct ctl_table tbl;
+	ctl_table_no_const tbl;
 	bool changed = false;
 	char *none = "none";
 	char tmp[8] = {0};
@@ -372,7 +372,7 @@ static int proc_sctp_do_rto_min(struct ctl_table *ctl, int write,
 	struct net *net = current->nsproxy->net_ns;
 	unsigned int min = *(unsigned int *) ctl->extra1;
 	unsigned int max = *(unsigned int *) ctl->extra2;
-	struct ctl_table tbl;
+	ctl_table_no_const tbl;
 	int ret, new_value;
 
 	memset(&tbl, 0, sizeof(struct ctl_table));
@@ -401,7 +401,7 @@ static int proc_sctp_do_rto_max(struct ctl_table *ctl, int write,
 	struct net *net = current->nsproxy->net_ns;
 	unsigned int min = *(unsigned int *) ctl->extra1;
 	unsigned int max = *(unsigned int *) ctl->extra2;
-	struct ctl_table tbl;
+	ctl_table_no_const tbl;
 	int ret, new_value;
 
 	memset(&tbl, 0, sizeof(struct ctl_table));
@@ -439,7 +439,7 @@ static int proc_sctp_do_auth(struct ctl_table *ctl, int write,
 			     loff_t *ppos)
 {
 	struct net *net = current->nsproxy->net_ns;
-	struct ctl_table tbl;
+	ctl_table_no_const tbl;
 	int new_value, ret;
 
 	memset(&tbl, 0, sizeof(struct ctl_table));
@@ -466,7 +466,7 @@ static int proc_sctp_do_auth(struct ctl_table *ctl, int write,
 
 int sctp_sysctl_net_register(struct net *net)
 {
-	struct ctl_table *table;
+	ctl_table_no_const *table;
 	int i;
 
 	table = kmemdup(sctp_net_table, sizeof(sctp_net_table), GFP_KERNEL);
diff --git a/net/socket.c b/net/socket.c
index 5f77a8e..1d36c7e 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -89,6 +89,7 @@
 #include <linux/magic.h>
 #include <linux/slab.h>
 #include <linux/xattr.h>
+#include <linux/in.h>
 
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
@@ -107,6 +108,7 @@
 #include <linux/atalk.h>
 #include <net/busy_poll.h>
 #include <linux/errqueue.h>
+#include <linux/grsock.h>
 
 #ifdef CONFIG_NET_RX_BUSY_POLL
 unsigned int sysctl_net_busy_read __read_mostly;
@@ -160,7 +162,7 @@ static const struct file_operations socket_file_ops = {
  */
 
 static DEFINE_SPINLOCK(net_family_lock);
-static const struct net_proto_family __rcu *net_families[NPROTO] __read_mostly;
+const struct net_proto_family __rcu *net_families[NPROTO] __read_mostly;
 
 /*
  *	Statistics counters of the socket lists
@@ -327,7 +329,7 @@ static struct dentry *sockfs_mount(struct file_system_type *fs_type,
 		&sockfs_dentry_operations, SOCKFS_MAGIC);
 }
 
-static struct vfsmount *sock_mnt __read_mostly;
+struct vfsmount *sock_mnt __read_mostly;
 
 static struct file_system_type sock_fs_type = {
 	.name =		"sockfs",
@@ -1100,6 +1102,8 @@ int __sock_create(struct net *net, int family, int type, int protocol,
 		return -EAFNOSUPPORT;
 	if (type < 0 || type >= SOCK_MAX)
 		return -EINVAL;
+	if (protocol < 0)
+		return -EINVAL;
 
 	/* Compatibility.
 
@@ -1116,6 +1120,20 @@ int __sock_create(struct net *net, int family, int type, int protocol,
 	if (err)
 		return err;
 
+	if(!kern && !gr_search_socket(family, type, protocol)) {
+		if (rcu_access_pointer(net_families[family]) == NULL)
+			return -EAFNOSUPPORT;
+		else
+			return -EACCES;
+	}
+
+	if (!kern && gr_handle_sock_all(family, type, protocol)) {
+		if (rcu_access_pointer(net_families[family]) == NULL)
+			return -EAFNOSUPPORT;
+		else
+			return -EACCES;
+	}
+
 	/*
 	 *	Allocate the socket and allow the family to set things up. if
 	 *	the protocol is 0, the family is instructed to select an appropriate
@@ -1367,6 +1385,14 @@ SYSCALL_DEFINE3(bind, int, fd, struct sockaddr __user *, umyaddr, int, addrlen)
 	if (sock) {
 		err = move_addr_to_kernel(umyaddr, addrlen, &address);
 		if (err >= 0) {
+			if (gr_handle_sock_server((struct sockaddr *)&address)) {
+				err = -EACCES;
+				goto error;
+			}
+			err = gr_search_bind(sock, (struct sockaddr_in *)&address);
+			if (err)
+				goto error;
+
 			err = security_socket_bind(sock,
 						   (struct sockaddr *)&address,
 						   addrlen);
@@ -1375,6 +1401,7 @@ SYSCALL_DEFINE3(bind, int, fd, struct sockaddr __user *, umyaddr, int, addrlen)
 						      (struct sockaddr *)
 						      &address, addrlen);
 		}
+error:
 		fput_light(sock->file, fput_needed);
 	}
 	return err;
@@ -1398,10 +1425,20 @@ SYSCALL_DEFINE2(listen, int, fd, int, backlog)
 		if ((unsigned int)backlog > somaxconn)
 			backlog = somaxconn;
 
+		if (gr_handle_sock_server_other(sock->sk)) {
+			err = -EPERM;
+			goto error;
+		}
+
+		err = gr_search_listen(sock);
+		if (err)
+			goto error;
+
 		err = security_socket_listen(sock, backlog);
 		if (!err)
 			err = sock->ops->listen(sock, backlog);
 
+error:
 		fput_light(sock->file, fput_needed);
 	}
 	return err;
@@ -1445,6 +1482,18 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
 	newsock->type = sock->type;
 	newsock->ops = sock->ops;
 
+	if (gr_handle_sock_server_other(sock->sk)) {
+		err = -EPERM;
+		sock_release(newsock);
+		goto out_put;
+	}
+
+	err = gr_search_accept(sock);
+	if (err) {
+		sock_release(newsock);
+		goto out_put;
+	}
+
 	/*
 	 * We don't need try_module_get here, as the listening socket (sock)
 	 * has the protocol module (sock->ops->owner) held.
@@ -1490,6 +1539,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
 	fd_install(newfd, newfile);
 	err = newfd;
 
+	gr_attach_curr_ip(newsock->sk);
+
 out_put:
 	fput_light(sock->file, fput_needed);
 out:
@@ -1522,6 +1573,7 @@ SYSCALL_DEFINE3(connect, int, fd, struct sockaddr __user *, uservaddr,
 		int, addrlen)
 {
 	struct socket *sock;
+	struct sockaddr *sck;
 	struct sockaddr_storage address;
 	int err, fput_needed;
 
@@ -1532,6 +1584,17 @@ SYSCALL_DEFINE3(connect, int, fd, struct sockaddr __user *, uservaddr,
 	if (err < 0)
 		goto out_put;
 
+	sck = (struct sockaddr *)&address;
+
+	if (gr_handle_sock_client(sck)) {
+		err = -EACCES;
+		goto out_put;
+	}
+
+	err = gr_search_connect(sock, (struct sockaddr_in *)sck);
+	if (err)
+		goto out_put;
+
 	err =
 	    security_socket_connect(sock, (struct sockaddr *)&address, addrlen);
 	if (err)
@@ -1554,7 +1617,7 @@ SYSCALL_DEFINE3(getsockname, int, fd, struct sockaddr __user *, usockaddr,
 		int __user *, usockaddr_len)
 {
 	struct socket *sock;
-	struct sockaddr_storage address;
+	struct sockaddr_storage address = { };
 	int len, err, fput_needed;
 
 	sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1585,7 +1648,7 @@ SYSCALL_DEFINE3(getpeername, int, fd, struct sockaddr __user *, usockaddr,
 		int __user *, usockaddr_len)
 {
 	struct socket *sock;
-	struct sockaddr_storage address;
+	struct sockaddr_storage address = { };
 	int len, err, fput_needed;
 
 	sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1613,6 +1676,8 @@ SYSCALL_DEFINE3(getpeername, int, fd, struct sockaddr __user *, usockaddr,
  *	the protocol.
  */
 
+asmlinkage long sys_sendto(int, void __user *, size_t, unsigned, struct sockaddr __user *, int);
+
 SYSCALL_DEFINE6(sendto, int, fd, void __user *, buff, size_t, len,
 		unsigned int, flags, struct sockaddr __user *, addr,
 		int, addr_len)
@@ -1676,7 +1741,7 @@ SYSCALL_DEFINE6(recvfrom, int, fd, void __user *, ubuf, size_t, size,
 	struct socket *sock;
 	struct iovec iov;
 	struct msghdr msg;
-	struct sockaddr_storage address;
+	struct sockaddr_storage address = { };
 	int err, err2;
 	int fput_needed;
 
@@ -1921,7 +1986,7 @@ static int ___sys_sendmsg(struct socket *sock, struct user_msghdr __user *msg,
 		 * checking falls down on this.
 		 */
 		if (copy_from_user(ctl_buf,
-				   (void __user __force *)msg_sys->msg_control,
+				   (void __force_user *)msg_sys->msg_control,
 				   ctl_len))
 			goto out_freectl;
 		msg_sys->msg_control = ctl_buf;
@@ -2077,7 +2142,7 @@ static int ___sys_recvmsg(struct socket *sock, struct user_msghdr __user *msg,
 	ssize_t err;
 
 	/* kernel mode address */
-	struct sockaddr_storage addr;
+	struct sockaddr_storage addr = { };
 
 	/* user mode address pointers */
 	struct sockaddr __user *uaddr;
@@ -2723,7 +2788,7 @@ static int ethtool_ioctl(struct net *net, struct compat_ifreq __user *ifr32)
 	ifr = compat_alloc_user_space(buf_size);
 	rxnfc = (void __user *)ifr + ALIGN(sizeof(struct ifreq), 8);
 
-	if (copy_in_user(&ifr->ifr_name, &ifr32->ifr_name, IFNAMSIZ))
+	if (copy_in_user(ifr->ifr_name, ifr32->ifr_name, IFNAMSIZ))
 		return -EFAULT;
 
 	if (put_user(convert_in ? rxnfc : compat_ptr(data),
@@ -2834,7 +2899,7 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
 		old_fs = get_fs();
 		set_fs(KERNEL_DS);
 		err = dev_ioctl(net, cmd,
-				(struct ifreq __user __force *) &kifr);
+				(struct ifreq __force_user *) &kifr);
 		set_fs(old_fs);
 
 		return err;
@@ -2927,7 +2992,7 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
 
 	old_fs = get_fs();
 	set_fs(KERNEL_DS);
-	err = dev_ioctl(net, cmd, (void  __user __force *)&ifr);
+	err = dev_ioctl(net, cmd, (void  __force_user *)&ifr);
 	set_fs(old_fs);
 
 	if (cmd == SIOCGIFMAP && !err) {
@@ -3011,7 +3076,7 @@ static int routing_ioctl(struct net *net, struct socket *sock,
 		ret |= get_user(rtdev, &(ur4->rt_dev));
 		if (rtdev) {
 			ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
-			r4.rt_dev = (char __user __force *)devname;
+			r4.rt_dev = (char __force_user *)devname;
 			devname[15] = 0;
 		} else
 			r4.rt_dev = NULL;
@@ -3238,8 +3303,8 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
 	int __user *uoptlen;
 	int err;
 
-	uoptval = (char __user __force *) optval;
-	uoptlen = (int __user __force *) optlen;
+	uoptval = (char __force_user *) optval;
+	uoptlen = (int __force_user *) optlen;
 
 	set_fs(KERNEL_DS);
 	if (level == SOL_SOCKET)
@@ -3259,7 +3324,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
 	char __user *uoptval;
 	int err;
 
-	uoptval = (char __user __force *) optval;
+	uoptval = (char __force_user *) optval;
 
 	set_fs(KERNEL_DS);
 	if (level == SOL_SOCKET)
diff --git a/net/sunrpc/Kconfig b/net/sunrpc/Kconfig
index 04ce2c0..b1dd1bd 100644
--- a/net/sunrpc/K