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Message-Id: <20180820152216.9447-1-ubizjak@gmail.com> Date: Mon, 20 Aug 2018 17:22:16 +0200 From: Uros Bizjak <ubizjak@...il.com> To: linux-kernel@...r.kernel.org Cc: x86@...nel.org, Uros Bizjak <ubizjak@...il.com> Subject: [PATCH] x86, asm: Use CC_SET()/CC_OUT() for __cmpxchg_double Remove open-coded uses of set instructions to use CC_SET()/CC_OUT() for __cmpxchg_double. Signed-off-by: Uros Bizjak <ubizjak@...il.com> --- arch/x86/include/asm/cmpxchg.h | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/arch/x86/include/asm/cmpxchg.h b/arch/x86/include/asm/cmpxchg.h index a55d79b233d3..bfb85e5844ab 100644 --- a/arch/x86/include/asm/cmpxchg.h +++ b/arch/x86/include/asm/cmpxchg.h @@ -242,10 +242,12 @@ extern void __add_wrong_size(void) BUILD_BUG_ON(sizeof(*(p2)) != sizeof(long)); \ VM_BUG_ON((unsigned long)(p1) % (2 * sizeof(long))); \ VM_BUG_ON((unsigned long)((p1) + 1) != (unsigned long)(p2)); \ - asm volatile(pfx "cmpxchg%c4b %2; sete %0" \ - : "=a" (__ret), "+d" (__old2), \ - "+m" (*(p1)), "+m" (*(p2)) \ - : "i" (2 * sizeof(long)), "a" (__old1), \ + asm volatile(pfx "cmpxchg%c5b %1" \ + CC_SET(e) \ + : CC_OUT(e) (__ret), \ + "+m" (*(p1)), "+m" (*(p2)), \ + "+a" (__old1), "+d" (__old2) \ + : "i" (2 * sizeof(long)), \ "b" (__new1), "c" (__new2)); \ __ret; \ }) -- 2.17.1
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