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Subject[RFC 3/4] ARC: uaccess: remove noinline variants of __strncpy_from_user() and friends
This helps with subsequent removal of arch specific variants in favour
of optimized generic routines (word vs byte access)

Signed-off-by: Vineet Gupta <>
arch/arc/include/asm/uaccess.h | 26 ++++++--------------------
arch/arc/mm/extable.c | 23 -----------------------
2 files changed, 6 insertions(+), 43 deletions(-)

diff --git a/arch/arc/include/asm/uaccess.h b/arch/arc/include/asm/uaccess.h
index ea40ec7f6cae..0b34c152086f 100644
--- a/arch/arc/include/asm/uaccess.h
+++ b/arch/arc/include/asm/uaccess.h
@@ -613,7 +613,7 @@ raw_copy_to_user(void __user *to, const void *from, unsigned long n)
return res;

-static inline unsigned long __arc_clear_user(void __user *to, unsigned long n)
+static inline unsigned long __clear_user(void __user *to, unsigned long n)
long res = n;
unsigned char *d_char = to;
@@ -656,7 +656,7 @@ static inline unsigned long __arc_clear_user(void __user *to, unsigned long n)

static inline long
-__arc_strncpy_from_user(char *dst, const char __user *src, long count)
+__strncpy_from_user(char *dst, const char __user *src, long count)
long res = 0;
char val;
@@ -688,7 +688,7 @@ __arc_strncpy_from_user(char *dst, const char __user *src, long count)
return res;

-static inline long __arc_strnlen_user(const char __user *s, long n)
+static inline long __strnlen_user(const char __user *s, long n)
long res, tmp1, cnt;
char val;
@@ -718,26 +718,12 @@ static inline long __arc_strnlen_user(const char __user *s, long n)
return res;


-#define __clear_user(d, n) __arc_clear_user(d, n)
-#define __strncpy_from_user(d, s, n) __arc_strncpy_from_user(d, s, n)
-#define __strnlen_user(s, n) __arc_strnlen_user(s, n)
-extern unsigned long arc_clear_user_noinline(void __user *to,
- unsigned long n);
-extern long arc_strncpy_from_user_noinline (char *dst, const char __user *src,
- long count);
-extern long arc_strnlen_user_noinline(const char __user *src, long n);
-#define __clear_user(d, n) arc_clear_user_noinline(d, n)
-#define __strncpy_from_user(d, s, n) arc_strncpy_from_user_noinline(d, s, n)
-#define __strnlen_user(s, n) arc_strnlen_user_noinline(s, n)
+#define __clear_user __clear_user
+#define __strncpy_from_user __strncpy_from_user
+#define __strnlen_user __strnlen_user

#include <asm/segment.h>
#include <asm-generic/uaccess.h>
diff --git a/arch/arc/mm/extable.c b/arch/arc/mm/extable.c
index b06b09ddf924..88fa3a4d4906 100644
--- a/arch/arc/mm/extable.c
+++ b/arch/arc/mm/extable.c
@@ -22,26 +22,3 @@ int fixup_exception(struct pt_regs *regs)

return 0;
-unsigned long arc_clear_user_noinline(void __user *to,
- unsigned long n)
- return __arc_clear_user(to, n);
-long arc_strncpy_from_user_noinline(char *dst, const char __user *src,
- long count)
- return __arc_strncpy_from_user(dst, src, count);
-long arc_strnlen_user_noinline(const char __user *src, long n)
- return __arc_strnlen_user(src, n);
 \ /
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