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From: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
To: Arnd Bergmann <arnd@arndb.de>
Cc: linux-arch <linux-arch@vger.kernel.org>,
	Rich Felker <dalias@libc.org>,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Linux-sh list <linux-sh@vger.kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Russell King <linux@armlinux.org.uk>,
	Ingo Molnar <mingo@redhat.com>, Waiman Long <longman@redhat.com>,
	Will Deacon <will@kernel.org>,
	Linux ARM <linux-arm-kernel@lists.infradead.org>
Subject: [PATCH 1/6 v2] sh: Move cmpxchg-xchg.h to asm-generic
Date: Wed, 16 Oct 2019 00:31:55 +0200	[thread overview]
Message-ID: <20191015223154.7wcsc7x5edrpasfc@flow> (raw)
In-Reply-To: <CAK8P3a0q+03=uNcnnHrGqHGOcAO3-mytxSmoBWLtHY+5StMNOQ@mail.gmail.com>

The header file is very generic and could be reused by other
architectures as long as they provide __cmpxchg_u32().

Move sh's cmpxchg-xchg.h to asm-generic.

Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: linux-sh@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
---
v1…v2: s@__ASM_SH_CMPXCHG_XCHG_H@__ASM_GENERIC_CMPXCHG_XCHG_H@

 arch/sh/include/asm/Kbuild                                  | 1 +
 {arch/sh/include/asm => include/asm-generic}/cmpxchg-xchg.h | 6 +++---
 2 files changed, 4 insertions(+), 3 deletions(-)
 rename {arch/sh/include/asm => include/asm-generic}/cmpxchg-xchg.h (91%)

diff --git a/arch/sh/include/asm/Kbuild b/arch/sh/include/asm/Kbuild
index 51a54df22c110..08c1d96286d9d 100644
--- a/arch/sh/include/asm/Kbuild
+++ b/arch/sh/include/asm/Kbuild
@@ -1,5 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 generated-y += syscall_table.h
+generic-y += cmpxchg-xchg.h
 generic-y += compat.h
 generic-y += current.h
 generic-y += delay.h
diff --git a/arch/sh/include/asm/cmpxchg-xchg.h b/include/asm-generic/cmpxchg-xchg.h
similarity index 91%
rename from arch/sh/include/asm/cmpxchg-xchg.h
rename to include/asm-generic/cmpxchg-xchg.h
index c373f21efe4d9..c9acd6ff8741d 100644
--- a/arch/sh/include/asm/cmpxchg-xchg.h
+++ b/include/asm-generic/cmpxchg-xchg.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __ASM_SH_CMPXCHG_XCHG_H
-#define __ASM_SH_CMPXCHG_XCHG_H
+#ifndef __ASM_GENERIC_CMPXCHG_XCHG_H
+#define __ASM_GENERIC_CMPXCHG_XCHG_H
 
 /*
  * Copyright (C) 2016 Red Hat, Inc.
@@ -47,4 +47,4 @@ static inline unsigned long xchg_u8(volatile u8 *m, unsigned long val)
 	return __xchg_cmpxchg(m, val, sizeof *m);
 }
 
-#endif /* __ASM_SH_CMPXCHG_XCHG_H */
+#endif /* __ASM_GENERIC_CMPXCHG_XCHG_H */
-- 
2.23.0


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  reply	other threads:[~2019-10-15 22:32 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-13 22:13 [RFC PATCH 0/6 v2] Queued spinlocks/RW-locks for ARM Sebastian Andrzej Siewior
2019-10-13 22:13 ` [PATCH 1/6] sh: Move cmpxchg-xchg.h to asm-generic Sebastian Andrzej Siewior
2019-10-14  7:25   ` Arnd Bergmann
2019-10-15 22:31     ` Sebastian Andrzej Siewior [this message]
2019-10-13 22:13 ` [PATCH 2/6] ARM: cmpxchg: Define first cmpxchg() followed by xchg() Sebastian Andrzej Siewior
2019-10-13 22:13 ` [PATCH 3/6] ARM: Add xchg_{8|16}() on generic cmpxchg() on CPU_V6 Sebastian Andrzej Siewior
2019-10-13 22:13 ` [PATCH 4/6] ARM: Use qrwlock implementation Sebastian Andrzej Siewior
2019-10-13 22:13 ` [PATCH 5/6] ARM: Use qspinlock implementation Sebastian Andrzej Siewior
2019-10-13 22:13 ` [PATCH 6/6] ARM: Inline locking functions for !PREEMPTION Sebastian Andrzej Siewior
2019-10-14  7:43   ` Arnd Bergmann
2019-10-14 10:01     ` Arnd Bergmann
2019-10-15 22:30       ` Sebastian Andrzej Siewior
2019-10-15 22:37         ` Waiman Long
2019-10-15 22:47           ` Arnd Bergmann
2019-10-15 22:04     ` Sebastian Andrzej Siewior
2019-10-14  9:00 ` [RFC PATCH 0/6 v2] Queued spinlocks/RW-locks for ARM Arnd Bergmann
2019-10-16 15:57 ` Will Deacon
2019-10-16 17:45   ` Waiman Long
2019-10-16 18:33     ` Arnd Bergmann
2019-10-16 21:35     ` Sebastian Andrzej Siewior
2019-10-16 22:09   ` Sebastian Andrzej Siewior
2019-10-17 15:36     ` Waiman Long

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