From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/6] ARM: prefetch: remove redundant "cc" clobber
Date: Tue, 23 Jul 2013 12:36:24 +0100 [thread overview]
Message-ID: <1374579389-32704-2-git-send-email-will.deacon@arm.com> (raw)
In-Reply-To: <1374579389-32704-1-git-send-email-will.deacon@arm.com>
The pld instruction does not affect the condition flags, so don't bother
clobbering them.
Signed-off-by: Will Deacon <will.deacon@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
next prev parent reply other threads:[~2013-07-23 11:36 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-23 11:36 [PATCH 0/6] Add support for pldw instruction on v7 MP cores Will Deacon
2013-07-23 11:36 ` Will Deacon [this message]
2013-07-23 19:48 ` [PATCH 1/6] ARM: prefetch: remove redundant "cc" clobber Nicolas Pitre
2013-07-24 10:19 ` Will Deacon
2013-07-24 16:16 ` Nicolas Pitre
2013-07-24 16:35 ` Will Deacon
2013-07-24 16:58 ` Russell King - ARM Linux
2013-07-24 17:22 ` Nicolas Pitre
2013-07-23 11:36 ` [PATCH 2/6] ARM: smp_on_up: move inline asm ALT_SMP patching macro out of spinlock.h Will Deacon
2013-07-23 19:55 ` Nicolas Pitre
2013-07-23 11:36 ` [PATCH 3/6] ARM: prefetch: add support for prefetchw using pldw on SMP ARMv7+ CPUs Will Deacon
2013-07-23 20:05 ` Nicolas Pitre
2013-07-24 10:42 ` Will Deacon
2013-07-23 11:36 ` [PATCH 4/6] ARM: locks: prefetch the destination word for write prior to strex Will Deacon
2013-07-23 20:10 ` Nicolas Pitre
2013-07-24 11:18 ` Will Deacon
2013-07-25 17:31 ` Stephen Boyd
2013-07-25 17:37 ` Stephen Boyd
2013-07-25 17:45 ` Will Deacon
2013-07-25 17:48 ` Will Deacon
2013-07-25 17:55 ` Stephen Boyd
2013-07-25 18:05 ` Will Deacon
2013-07-25 18:22 ` Stephen Boyd
2013-07-25 20:24 ` Nicolas Pitre
2013-07-26 10:34 ` Will Deacon
2013-07-26 14:46 ` Nicolas Pitre
2013-07-23 11:36 ` [PATCH 5/6] ARM: atomics: " Will Deacon
2013-07-23 20:12 ` Nicolas Pitre
2013-07-23 11:36 ` [PATCH 6/6] ARM: bitops: " Will Deacon
2013-07-23 20:15 ` Nicolas Pitre
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