atomic: move atomic_add_unless to generic code

This is in preparation for more generic atomic primitives based on
__atomic_add_unless.

Signed-off-by: Arun Sharma <asharma@fb.com>
Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: David Miller <davem@davemloft.net>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/mn10300/include/asm/atomic.h b/arch/mn10300/include/asm/atomic.h
index 041b9d69d86..a2e6759af4d 100644
--- a/arch/mn10300/include/asm/atomic.h
+++ b/arch/mn10300/include/asm/atomic.h
@@ -260,13 +260,13 @@ static inline void atomic_dec(atomic_t *v)
 #define atomic_dec_and_test(v)          (atomic_sub_return(1, (v)) == 0)
 #define atomic_inc_and_test(v)          (atomic_add_return(1, (v)) == 0)
 
-#define atomic_add_unless(v, a, u)                              \
+#define __atomic_add_unless(v, a, u)                            \
 ({                                                              \
         int c, old;                                             \
         c = atomic_read(v);                                     \
         while (c != (u) && (old = atomic_cmpxchg((v), c, c + (a))) != c) \
                 c = old;                                        \
-        c != (u);                                               \
+        c;                                                      \
 })