[PATCH 06/28] avr32: Provide atomic_{or,xor,and}

From	Peter Zijlstra <peterz@infradead.org>
Newsgroups	linux.kernel
Subject	[PATCH 06/28] avr32: Provide atomic_{or,xor,and}
Date	2015-07-16 19:40 +0200
Message-ID	<pMViA-57c-49@gated-at.bofh.it> (permalink)
References	<pMVix-57c-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Implement atomic logic ops -- atomic_{or,xor,and}.

These will replace the atomic_{set,clear}_mask functions that are
available on some archs.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
 arch/avr32/include/asm/atomic.h |   14 ++++++++++++++
 1 file changed, 14 insertions(+)

--- a/arch/avr32/include/asm/atomic.h
+++ b/arch/avr32/include/asm/atomic.h
@@ -44,6 +44,20 @@ static inline int __atomic_##op##_return
 ATOMIC_OP_RETURN(sub, sub, rKs21)
 ATOMIC_OP_RETURN(add, add, r)
 
+#define ATOMIC_OP(op, asm_op)						\
+ATOMIC_OP_RETURN(op, asm_op, r)						\
+static inline void atomic_##op(int i, atomic_t *v)			\
+{									\
+	(void)__atomic_##op##_return(i, v);				\
+}
+
+#define CONFIG_ARCH_HAS_ATOMIC_OR
+
+ATOMIC_OP(and, and)
+ATOMIC_OP(or, or)
+ATOMIC_OP(xor, eor)
+
+#undef ATOMIC_OP
 #undef ATOMIC_OP_RETURN
 
 /*


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[PATCH 06/28] avr32: Provide atomic_{or,xor,and} Peter Zijlstra <peterz@infradead.org> - 2015-07-16 19:40 +0200

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