From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 15 Jul 2015 13:47:25 +0000 (+0200)
Subject: atomic: Prepare generic atomic implementation for logic ops
X-Git-Tag: v4.14-rc1~4452^2~33^2~27
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=56d1defe0bbddaa97d6e74b51490904130fd4f1d;p=platform%2Fkernel%2Flinux-rpi.git

atomic: Prepare generic atomic implementation for logic ops

Clean up the #ifdef guards a bit to prepare for architectures to
supply their own logic ops.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---

diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h
index 1973ad2..92947e0 100644
--- a/include/asm-generic/atomic.h
+++ b/include/asm-generic/atomic.h
@@ -98,14 +98,22 @@ ATOMIC_OP_RETURN(add, +)
 ATOMIC_OP_RETURN(sub, -)
 #endif
 
-#ifndef atomic_clear_mask
+#ifndef atomic_and
 ATOMIC_OP(and, &)
+#endif
+
+#ifndef atomic_clear_mask
 #define atomic_clear_mask(i, v) atomic_and(~(i), (v))
 #endif
 
-#ifndef atomic_set_mask
+#ifndef atomic_or
+#ifndef CONFIG_ARCH_HAS_ATOMIC_OR
 #define CONFIG_ARCH_HAS_ATOMIC_OR
+#endif
 ATOMIC_OP(or, |)
+#endif
+
+#ifndef atomic_set_mask
 #define atomic_set_mask(i, v)	atomic_or((i), (v))
 #endif