[PATCH 3/3] ARC: provide atomic_or() and define ARCH_HAS_ATOMIC_OR

[Vineet Gupta]

Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: linux-arch@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Signed-off-by: Vineet Gupta <vgupta@xxxxxxxxxxxx>
---
 arch/arc/include/asm/atomic.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arc/include/asm/atomic.h b/arch/arc/include/asm/atomic.h
index 03484cb4d16d..fab27dbc562b 100644
--- a/arch/arc/include/asm/atomic.h
+++ b/arch/arc/include/asm/atomic.h
@@ -141,10 +141,19 @@ static inline int atomic_##op##_return(int i, atomic_t *v)		\
 	ATOMIC_OP(op, c_op, asm_op)					\
 	ATOMIC_OP_RETURN(op, c_op, asm_op)
 
+/* atomic_add(), atomic_add_return() */
 ATOMIC_OPS(add, +=, add)
+
+/* atomic_sub(), atomic_sub_return() */
 ATOMIC_OPS(sub, -=, sub)
+
+/* atomic_and() */
 ATOMIC_OP(and, &=, and)
 
+#define ARCH_HAS_ATOMIC_OR
+/* atomic_or() */
+ATOMIC_OP(or, |=, or)
+
 #define atomic_clear_mask(mask, v) atomic_and(~(mask), (v))
 
 #undef ATOMIC_OPS
-- 
1.9.1

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