1 files changed, 1 insertions, 0 deletions

diff --git a/include/asm-sparc/atomic.h b/include/asm-sparc/atomic.h
index 37f6ab601c3d..52bdd1a895fa 100644
--- a/include/asm-sparc/atomic.h
+++ b/include/asm-sparc/atomic.h
@@ -19,6 +19,7 @@ typedef struct { volatile int counter; } atomic_t;
 #define ATOMIC_INIT(i)  { (i) }
 
 extern int __atomic_add_return(int, atomic_t *);
+extern int atomic_cmpxchg(atomic_t *, int, int);
 extern void atomic_set(atomic_t *, int);
 
 #define atomic_read(v)          ((v)->counter)