[PATCH 1/6] sh: Move cmpxchg-xchg.h to asm-generic

[PATCH 1/6] sh: Move cmpxchg-xchg.h to asm-generic

[Sebastian Andrzej Siewior]

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
Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
---
 arch/sh/include/asm/Kbuild                                  | 1 +
 {arch/sh/include/asm => include/asm-generic}/cmpxchg-xchg.h | 0
 2 files changed, 1 insertion(+)
 rename {arch/sh/include/asm => include/asm-generic}/cmpxchg-xchg.h (100%)

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 100%
rename from arch/sh/include/asm/cmpxchg-xchg.h
rename to include/asm-generic/cmpxchg-xchg.h
-- 
2.23.0

Re: [PATCH 1/6] sh: Move cmpxchg-xchg.h to asm-generic

[Arnd Bergmann]

On Mon, Oct 14, 2019 at 12:13 AM Sebastian Andrzej Siewior
<sebastian@breakpoint.cc> wrote:
>
> 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>

Acked-by: Arnd Bergmann <arnd@arndb.de>

Maybe change the "#ifndef __ASM_SH_CMPXCHG_XCHG_H"
to __ASM_GENERIC_*.

        Arnd

[PATCH 1/6 v2] sh: Move cmpxchg-xchg.h to asm-generic

[Sebastian Andrzej Siewior]

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