From: guoren@kernel.org
To: guoren@kernel.org, arnd@arndb.de, palmer@dabbelt.com,
mark.rutland@arm.com, will@kernel.org, peterz@infradead.org,
boqun.feng@gmail.com, dlustig@nvidia.com, parri.andrea@gmail.com
Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-riscv@lists.infradead.org,
Guo Ren <guoren@linux.alibaba.com>
Subject: [PATCH V3 1/5] riscv: atomic: Cleanup unnecessary definition
Date: Wed, 20 Apr 2022 22:44:13 +0800 [thread overview]
Message-ID: <20220420144417.2453958-2-guoren@kernel.org> (raw)
In-Reply-To: <20220420144417.2453958-1-guoren@kernel.org>
From: Guo Ren <guoren@linux.alibaba.com>
The cmpxchg32 & cmpxchg32_local have been never used in linux, so
remove them from cmpxchg.h.
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Dan Lustig <dlustig@nvidia.com>
Cc: Andrea Parri <parri.andrea@gmail.com>
---
arch/riscv/include/asm/cmpxchg.h | 12 ------------
1 file changed, 12 deletions(-)
diff --git a/arch/riscv/include/asm/cmpxchg.h b/arch/riscv/include/asm/cmpxchg.h
index 36dc962f6343..12debce235e5 100644
--- a/arch/riscv/include/asm/cmpxchg.h
+++ b/arch/riscv/include/asm/cmpxchg.h
@@ -348,18 +348,6 @@
#define arch_cmpxchg_local(ptr, o, n) \
(__cmpxchg_relaxed((ptr), (o), (n), sizeof(*(ptr))))
-#define cmpxchg32(ptr, o, n) \
-({ \
- BUILD_BUG_ON(sizeof(*(ptr)) != 4); \
- arch_cmpxchg((ptr), (o), (n)); \
-})
-
-#define cmpxchg32_local(ptr, o, n) \
-({ \
- BUILD_BUG_ON(sizeof(*(ptr)) != 4); \
- arch_cmpxchg_relaxed((ptr), (o), (n)) \
-})
-
#define arch_cmpxchg64(ptr, o, n) \
({ \
BUILD_BUG_ON(sizeof(*(ptr)) != 8); \
--
2.25.1
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next prev parent reply other threads:[~2022-04-20 14:44 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-20 14:44 [PATCH V3 0/5] riscv: atomic: Optimize AMO instructions usage guoren
2022-04-20 14:44 ` guoren [this message]
2022-04-20 14:44 ` [PATCH V3 2/5] riscv: atomic: Optimize acquire and release for AMO operations guoren
2022-04-22 3:43 ` Guo Ren
2022-04-20 14:44 ` [PATCH V3 3/5] riscv: atomic: Optimize memory barrier semantics of LRSC-pairs guoren
2022-04-20 14:44 ` [PATCH V3 4/5] riscv: atomic: Optimize dec_if_positive functions guoren
2022-04-20 14:44 ` [PATCH V3 5/5] riscv: atomic: Add conditional atomic operations' optimization guoren
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