[PATCH] x86_64: Minor string functions optimizations

 - Use tail call from clear_user to __clear_user to save some code size
 - Use standard memcpy for forward memmove

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 2 insertions, 2 deletions

diff --git a/arch/x86_64/lib/memmove.c b/arch/x86_64/lib/memmove.c
index 517eb1bd9de5..751ebae8ec42 100644
--- a/arch/x86_64/lib/memmove.c
+++ b/arch/x86_64/lib/memmove.c
@@ -9,7 +9,7 @@
 void *memmove(void * dest,const void *src,size_t count)
 {
         if (dest < src) { 
-                __inline_memcpy(dest,src,count);
+                return memcpy(dest,src,count);
         } else {
                 char *p = (char *) dest + count;
                 char *s = (char *) src + count;
diff --git a/arch/x86_64/lib/usercopy.c b/arch/x86_64/lib/usercopy.c
index a82bfacdb1af..893d43f838cc 100644
--- a/arch/x86_64/lib/usercopy.c
+++ b/arch/x86_64/lib/usercopy.c
@@ -55,7 +55,7 @@ strncpy_from_user(char *dst, const char __user *src, long count)
 {
         long res = -EFAULT;
         if (access_ok(VERIFY_READ, src, 1))
-                __do_strncpy_from_user(dst, src, count, res);
+                return __strncpy_from_user(dst, src, count);
         return res;
 }
 EXPORT_SYMBOL(strncpy_from_user);