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-rw-r--r--include/linux/atomic.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/atomic.h b/include/linux/atomic.h
index 42b77b5446d..70cfcb2d63c 100644
--- a/include/linux/atomic.h
+++ b/include/linux/atomic.h
@@ -24,7 +24,9 @@ static inline int atomic_add_unless(atomic_t *v, int a, int u)
* Atomically increments @v by 1, so long as @v is non-zero.
* Returns non-zero if @v was non-zero, and zero otherwise.
*/
+#ifndef atomic_inc_not_zero
#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
+#endif
/**
* atomic_inc_not_zero_hint - increment if not null