linux-kernel - [PATCH V3 1/5] riscv: atomic: Cleanup unnecessary definition

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Date:   Wed, 20 Apr 2022 22:44:13 +0800
From:   guoren@...nel.org
To:     guoren@...nel.org, arnd@...db.de, palmer@...belt.com,
        mark.rutland@....com, will@...nel.org, peterz@...radead.org,
        boqun.feng@...il.com, dlustig@...dia.com, parri.andrea@...il.com
Cc:     linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-riscv@...ts.infradead.org, Guo Ren <guoren@...ux.alibaba.com>
Subject: [PATCH V3 1/5] riscv: atomic: Cleanup unnecessary definition

From: Guo Ren <guoren@...ux.alibaba.com>

The cmpxchg32 & cmpxchg32_local have been never used in linux, so
remove them from cmpxchg.h.

Signed-off-by: Guo Ren <guoren@...ux.alibaba.com>
Signed-off-by: Guo Ren <guoren@...nel.org>
Cc: Palmer Dabbelt <palmer@...belt.com>
Cc: Arnd Bergmann <arnd@...db.de>
Cc: Dan Lustig <dlustig@...dia.com>
Cc: Andrea Parri <parri.andrea@...il.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