Merge branch 'x86-asmlinkage-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86/asmlinkage changes from Ingo Molnar:
 "As a preparation for Andi Kleen's LTO patchset (link time
  optimizations using GCC's -flto which build time optimization has
  steadily increased in quality over the past few years and might
  eventually be usable for the kernel too) this tree includes a handful
  of preparatory patches that make function calling convention
  annotations consistent again:

   - Mark every function without arguments (or 64bit only) that is used
     by assembly code with asmlinkage()

   - Mark every function with parameters or variables that is used by
     assembly code as __visible.

  For the vanilla kernel this has documentation, consistency and
  debuggability advantages, for the time being"

* 'x86-asmlinkage-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/asmlinkage: Fix warning in xen asmlinkage change
  x86, asmlinkage, vdso: Mark vdso variables __visible
  x86, asmlinkage, power: Make various symbols used by the suspend asm code visible
  x86, asmlinkage: Make dump_stack visible
  x86, asmlinkage: Make 64bit checksum functions visible
  x86, asmlinkage, paravirt: Add __visible/asmlinkage to xen paravirt ops
  x86, asmlinkage, apm: Make APM data structure used from assembler visible
  x86, asmlinkage: Make syscall tables visible
  x86, asmlinkage: Make several variables used from assembler/linker script visible
  x86, asmlinkage: Make kprobes code visible and fix assembler code
  x86, asmlinkage: Make various syscalls asmlinkage
  x86, asmlinkage: Make 32bit/64bit __switch_to visible
  x86, asmlinkage: Make _*_start_kernel visible
  x86, asmlinkage: Make all interrupt handlers asmlinkage / __visible
  x86, asmlinkage: Change dotraplinkage into __visible on 32bit
  x86: Fix sys_call_table type in asm/syscall.h

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/x86/lib/usercopy_64.c b/arch/x86/lib/usercopy_64.c
index 906fea315791..c905e89e19fe 100644
--- a/arch/x86/lib/usercopy_64.c
+++ b/arch/x86/lib/usercopy_64.c
@@ -68,7 +68,7 @@ EXPORT_SYMBOL(copy_in_user);
  * Since protection fault in copy_from/to_user is not a normal situation,
  * it is not necessary to optimize tail handling.
  */
-unsigned long
+__visible unsigned long
 copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest)
 {
 	char c;