linux-kernel - [PATCH v3 1/4] riscv: cmpxchg.h: Cleanup unused code

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Date:   Thu, 25 Mar 2021 07:55:34 +0000
From:   guoren@...nel.org
To:     guoren@...nel.org, Anup.Patel@....com
Cc:     linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-csky@...r.kernel.org, linux-arch@...r.kernel.org,
        tech-unixplatformspec@...ts.riscv.org,
        Guo Ren <guoren@...ux.alibaba.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Michael Clark <michaeljclark@....com>,
        Anup Patel <anup@...infault.org>,
        Arnd Bergmann <arnd@...db.de>,
        Palmer Dabbelt <palmerdabbelt@...gle.com>
Subject: [PATCH v3 1/4] riscv: cmpxchg.h: Cleanup unused code

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

Remove unnecessary marco, they are no use or handled by generic
files (atomic-fallback.h, asm-generic/cmpxchg*).

Signed-off-by: Guo Ren <guoren@...ux.alibaba.com>
Link: https://lore.kernel.org/linux-riscv/CAJF2gTT1_mP-wiK2HsCpTeU61NqZVKZX1A5ye=TwqvGN4TPmrA@mail.gmail.com/
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Michael Clark <michaeljclark@....com>
Cc: Anup Patel <anup@...infault.org>
Cc: Arnd Bergmann <arnd@...db.de>
Cc: Palmer Dabbelt <palmerdabbelt@...gle.com>
---
 arch/riscv/include/asm/cmpxchg.h | 83 --------------------------------
 1 file changed, 83 deletions(-)

diff --git a/arch/riscv/include/asm/cmpxchg.h b/arch/riscv/include/asm/cmpxchg.h
index 262e5bbb2776..f1383c15e16b 100644
--- a/arch/riscv/include/asm/cmpxchg.h
+++ b/arch/riscv/include/asm/cmpxchg.h
@@ -72,13 +72,6 @@
 	__ret;								\
 })
 
-#define xchg_acquire(ptr, x)						\
-({									\
-	__typeof__(*(ptr)) _x_ = (x);					\
-	(__typeof__(*(ptr))) __xchg_acquire((ptr),			\
-					    _x_, sizeof(*(ptr)));	\
-})
-
 #define __xchg_release(ptr, new, size)					\
 ({									\
 	__typeof__(ptr) __ptr = (ptr);					\
@@ -107,13 +100,6 @@
 	__ret;								\
 })
 
-#define xchg_release(ptr, x)						\
-({									\
-	__typeof__(*(ptr)) _x_ = (x);					\
-	(__typeof__(*(ptr))) __xchg_release((ptr),			\
-					    _x_, sizeof(*(ptr)));	\
-})
-
 #define __xchg(ptr, new, size)						\
 ({									\
 	__typeof__(ptr) __ptr = (ptr);					\
@@ -140,24 +126,6 @@
 	__ret;								\
 })
 
-#define xchg(ptr, x)							\
-({									\
-	__typeof__(*(ptr)) _x_ = (x);					\
-	(__typeof__(*(ptr))) __xchg((ptr), _x_, sizeof(*(ptr)));	\
-})
-
-#define xchg32(ptr, x)							\
-({									\
-	BUILD_BUG_ON(sizeof(*(ptr)) != 4);				\
-	xchg((ptr), (x));						\
-})
-
-#define xchg64(ptr, x)							\
-({									\
-	BUILD_BUG_ON(sizeof(*(ptr)) != 8);				\
-	xchg((ptr), (x));						\
-})
-
 /*
  * Atomic compare and exchange.  Compare OLD with MEM, if identical,
  * store NEW in MEM.  Return the initial value in MEM.  Success is
@@ -245,14 +213,6 @@
 	__ret;								\
 })
 
-#define cmpxchg_acquire(ptr, o, n)					\
-({									\
-	__typeof__(*(ptr)) _o_ = (o);					\
-	__typeof__(*(ptr)) _n_ = (n);					\
-	(__typeof__(*(ptr))) __cmpxchg_acquire((ptr),			\
-					_o_, _n_, sizeof(*(ptr)));	\
-})
-
 #define __cmpxchg_release(ptr, old, new, size)				\
 ({									\
 	__typeof__(ptr) __ptr = (ptr);					\
@@ -291,14 +251,6 @@
 	__ret;								\
 })
 
-#define cmpxchg_release(ptr, o, n)					\
-({									\
-	__typeof__(*(ptr)) _o_ = (o);					\
-	__typeof__(*(ptr)) _n_ = (n);					\
-	(__typeof__(*(ptr))) __cmpxchg_release((ptr),			\
-					_o_, _n_, sizeof(*(ptr)));	\
-})
-
 #define __cmpxchg(ptr, old, new, size)					\
 ({									\
 	__typeof__(ptr) __ptr = (ptr);					\
@@ -337,39 +289,4 @@
 	__ret;								\
 })
 
-#define cmpxchg(ptr, o, n)						\
-({									\
-	__typeof__(*(ptr)) _o_ = (o);					\
-	__typeof__(*(ptr)) _n_ = (n);					\
-	(__typeof__(*(ptr))) __cmpxchg((ptr),				\
-				       _o_, _n_, sizeof(*(ptr)));	\
-})
-
-#define cmpxchg_local(ptr, o, n)					\
-	(__cmpxchg_relaxed((ptr), (o), (n), sizeof(*(ptr))))
-
-#define cmpxchg32(ptr, o, n)						\
-({									\
-	BUILD_BUG_ON(sizeof(*(ptr)) != 4);				\
-	cmpxchg((ptr), (o), (n));					\
-})
-
-#define cmpxchg32_local(ptr, o, n)					\
-({									\
-	BUILD_BUG_ON(sizeof(*(ptr)) != 4);				\
-	cmpxchg_relaxed((ptr), (o), (n))				\
-})
-
-#define cmpxchg64(ptr, o, n)						\
-({									\
-	BUILD_BUG_ON(sizeof(*(ptr)) != 8);				\
-	cmpxchg((ptr), (o), (n));					\
-})
-
-#define cmpxchg64_local(ptr, o, n)					\
-({									\
-	BUILD_BUG_ON(sizeof(*(ptr)) != 8);				\
-	cmpxchg_relaxed((ptr), (o), (n));				\
-})
-
 #endif /* _ASM_RISCV_CMPXCHG_H */
-- 
2.17.1