[PATCH v2 1/6] ARM: prefetch: remove redundant "cc" clobber

Will Deacon will.deacon at arm.com
Thu Jul 25 11:55:35 EDT 2013


The pld instruction does not affect the condition flags, so don't bother
clobbering them.

Acked-by: Nicolas Pitre <nico at linaro.org>
Signed-off-by: Will Deacon <will.deacon at arm.com>
---
 arch/arm/include/asm/processor.h | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/arch/arm/include/asm/processor.h b/arch/arm/include/asm/processor.h
index 06e7d50..91cfe08 100644
--- a/arch/arm/include/asm/processor.h
+++ b/arch/arm/include/asm/processor.h
@@ -101,9 +101,7 @@ static inline void prefetch(const void *ptr)
 {
 	__asm__ __volatile__(
 		"pld\t%a0"
-		:
-		: "p" (ptr)
-		: "cc");
+		:: "p" (ptr));
 }
 
 #define ARCH_HAS_PREFETCHW
-- 
1.8.2.2




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