Merge branch 'work.uaccess' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull uaccess unification updates from Al Viro:
 "This is the uaccess unification pile. It's _not_ the end of uaccess
  work, but the next batch of that will go into the next cycle. This one
  mostly takes copy_from_user() and friends out of arch/* and gets the
  zero-padding behaviour in sync for all architectures.

  Dealing with the nocache/writethrough mess is for the next cycle;
  fortunately, that's x86-only. Same for cleanups in iov_iter.c (I am
  sold on access_ok() in there, BTW; just not in this pile), same for
  reducing __copy_... callsites, strn*... stuff, etc. - there will be a
  pile about as large as this one in the next merge window.

  This one sat in -next for weeks. -3KLoC"

* 'work.uaccess' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (96 commits)
  HAVE_ARCH_HARDENED_USERCOPY is unconditional now
  CONFIG_ARCH_HAS_RAW_COPY_USER is unconditional now
  m32r: switch to RAW_COPY_USER
  hexagon: switch to RAW_COPY_USER
  microblaze: switch to RAW_COPY_USER
  get rid of padding, switch to RAW_COPY_USER
  ia64: get rid of copy_in_user()
  ia64: sanitize __access_ok()
  ia64: get rid of 'segment' argument of __do_{get,put}_user()
  ia64: get rid of 'segment' argument of __{get,put}_user_check()
  ia64: add extable.h
  powerpc: get rid of zeroing, switch to RAW_COPY_USER
  esas2r: don't open-code memdup_user()
  alpha: fix stack smashing in old_adjtimex(2)
  don't open-code kernel_setsockopt()
  mips: switch to RAW_COPY_USER
  mips: get rid of tail-zeroing in primitives
  mips: make copy_from_user() zero tail explicitly
  mips: clean and reorder the forest of macros...
  mips: consolidate __invoke_... wrappers
  ...

1 files changed, 7 insertions, 32 deletions

diff --git a/arch/avr32/include/asm/uaccess.h b/arch/avr32/include/asm/uaccess.h
index b1ec1fa06463..619d50e843a5 100644
--- a/arch/avr32/include/asm/uaccess.h
+++ b/arch/avr32/include/asm/uaccess.h
@@ -8,12 +8,6 @@
 #ifndef __ASM_AVR32_UACCESS_H
 #define __ASM_AVR32_UACCESS_H
 
-#include <linux/errno.h>
-#include <linux/sched.h>
-
-#define VERIFY_READ	0
-#define VERIFY_WRITE	1
-
 typedef struct {
 	unsigned int is_user_space;
 } mm_segment_t;
@@ -72,34 +66,18 @@ static inline void set_fs(mm_segment_t s)
 extern __kernel_size_t __copy_user(void *to, const void *from,
 				   __kernel_size_t n);
 
-extern __kernel_size_t copy_to_user(void __user *to, const void *from,
-				    __kernel_size_t n);
-extern __kernel_size_t ___copy_from_user(void *to, const void __user *from,
-				      __kernel_size_t n);
-
-static inline __kernel_size_t __copy_to_user(void __user *to, const void *from,
-					     __kernel_size_t n)
+static inline unsigned long
+raw_copy_to_user(void __user *to, const void *from, unsigned long n)
 {
 	return __copy_user((void __force *)to, from, n);
 }
-static inline __kernel_size_t __copy_from_user(void *to,
-					       const void __user *from,
-					       __kernel_size_t n)
+static inline unsigned long
+raw_copy_from_user(void *to, const void __user *from, unsigned long n)
 {
 	return __copy_user(to, (const void __force *)from, n);
 }
-static inline __kernel_size_t copy_from_user(void *to,
-					       const void __user *from,
-					       __kernel_size_t n)
-{
-	size_t res = ___copy_from_user(to, from, n);
-	if (unlikely(res))
-		memset(to + (n - res), 0, res);
-	return res;
-}
-
-#define __copy_to_user_inatomic __copy_to_user
-#define __copy_from_user_inatomic __copy_from_user
+#define INLINE_COPY_FROM_USER
+#define INLINE_COPY_TO_USER
 
 /*
  * put_user: - Write a simple value into user space.
@@ -329,9 +307,6 @@ extern long __strnlen_user(const char __user *__s, long __n);
 
 #define strlen_user(s) strnlen_user(s, ~0UL >> 1)
 
-struct exception_table_entry
-{
-	unsigned long insn, fixup;
-};
+#include <asm/extable.h>
 
 #endif /* __ASM_AVR32_UACCESS_H */