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
Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-riscv@lists.infradead.org,
Guo Ren <guoren@linux.alibaba.com>
Subject: [PATCH V2 1/3] riscv: atomic: Cleanup unnecessary definition
Date: Tue, 12 Apr 2022 11:49:55 +0800 [thread overview]
Message-ID: <20220412034957.1481088-2-guoren@kernel.org> (raw)
In-Reply-To: <20220412034957.1481088-1-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>
---
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
next prev parent reply other threads:[~2022-04-12 3:50 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-12 3:49 [PATCH V2 0/3] riscv: atomic: Optimize AMO instructions usage guoren
2022-04-12 3:49 ` guoren [this message]
2022-04-12 3:49 ` [PATCH V2 2/3] riscv: atomic: Optimize acquire and release for AMO operations guoren
2022-04-12 3:49 ` [PATCH V2 3/3] riscv: atomic: Optimize memory barrier semantics of LRSC-pairs guoren
2022-04-13 15:46 ` [PATCH V2 0/3] riscv: atomic: Optimize AMO instructions usage Boqun Feng
2022-04-16 16:49 ` Guo Ren
2022-04-17 2:26 ` Boqun Feng
2022-04-17 4:51 ` Guo Ren
2022-04-17 6:30 ` Boqun Feng
2022-04-17 6:45 ` Guo Ren
2022-04-19 17:12 ` Dan Lustig
2022-04-20 5:33 ` Guo Ren
2022-04-20 17:03 ` Dan Lustig
2022-04-21 9:39 ` Guo Ren
2022-04-21 22:56 ` Boqun Feng
2022-04-22 1:56 ` Guo Ren
2022-04-22 3:11 ` Boqun Feng
2022-04-24 7:52 ` Guo Ren
2022-04-18 23:41 ` Andrea Parri
2022-04-19 17:13 ` Dan Lustig
2022-04-24 8:33 ` Guo Ren
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