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From: Uros Bizjak <ubizjak@gmail.com>
To: x86@kernel.org, linux-kernel@vger.kernel.org
Cc: Uros Bizjak <ubizjak@gmail.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@kernel.org>, Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Peter Zijlstra <peterz@infradead.org>
Subject: [PATCH 1/3] locking/atomic/x86: Correct the definition of __arch_try_cmpxchg128()
Date: Mon,  8 Apr 2024 11:13:56 +0200	[thread overview]
Message-ID: <20240408091547.90111-2-ubizjak@gmail.com> (raw)
In-Reply-To: <20240408091547.90111-1-ubizjak@gmail.com>

Correct the definition of __arch_try_cmpxchg128(), introduced by:

  b23e139d0b66 ("arch: Introduce arch_{,try_}_cmpxchg128{,_local}()")

Fixes: b23e139d0b66 ("arch: Introduce arch_{,try_}_cmpxchg128{,_local}()")
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Peter Zijlstra <peterz@infradead.org>
---
 arch/x86/include/asm/cmpxchg_64.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/cmpxchg_64.h b/arch/x86/include/asm/cmpxchg_64.h
index 44b08b53ab32..c1d6cd58f809 100644
--- a/arch/x86/include/asm/cmpxchg_64.h
+++ b/arch/x86/include/asm/cmpxchg_64.h
@@ -62,7 +62,7 @@ static __always_inline u128 arch_cmpxchg128_local(volatile u128 *ptr, u128 old,
 	asm volatile(_lock "cmpxchg16b %[ptr]"				\
 		     CC_SET(e)						\
 		     : CC_OUT(e) (ret),					\
-		       [ptr] "+m" (*ptr),				\
+		       [ptr] "+m" (*(_ptr)),				\
 		       "+a" (o.low), "+d" (o.high)			\
 		     : "b" (n.low), "c" (n.high)			\
 		     : "memory");					\
-- 
2.44.0


  reply	other threads:[~2024-04-08  9:15 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-08  9:13 [PATCH 0/3] locking/atomic/x86: Improve arch_cmpxchg64() and friends for x86_32 Uros Bizjak
2024-04-08  9:13 ` Uros Bizjak [this message]
2024-04-09  8:26   ` [tip: locking/core] locking/atomic/x86: Correct the definition of __arch_try_cmpxchg128() tip-bot2 for Uros Bizjak
2024-04-08  9:13 ` [PATCH 2/3] locking/atomic/x86: Modernize x86_32 arch_{,try_}_cmpxchg64{,_local}() Uros Bizjak
2024-04-09  8:26   ` [tip: locking/core] " tip-bot2 for Uros Bizjak
2024-04-08  9:13 ` [PATCH 3/3] locking/atomic/x86: Introduce arch_try_cmpxchg64() for !CONFIG_X86_CMPXCHG64 Uros Bizjak
2024-04-09  7:50   ` Ingo Molnar
2024-04-09  8:26   ` [tip: locking/core] " tip-bot2 for Uros Bizjak

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