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-rw-r--r--include/atomic.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/atomic.h b/include/atomic.h
index 517776452b..87b2df8d21 100644
--- a/include/atomic.h
+++ b/include/atomic.h
@@ -112,7 +112,8 @@
/* Decrement *MEM if it is > 0, and return the old value. */
-#ifndef atomic_decrement_if_positive(mem) \
+#ifndef atomic_decrement_if_positive
+# define atomic_decrement_if_positive(mem) \
({ __typeof (*mem) __val; \
__typeof (*mem) __oldval; \
__typeof (mem) __memp; \