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uapi/linux/stddef.h: Provide __always_inline to userspace headers

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Josh Boyer reported that my recent change to uapi/linux/swab.h broke the Qemu build:

  bc27fb68aa ("include/uapi/linux/byteorder, swab: force inlining of some byteswap operations")

Unfortunately, UAPI headers don't include compiler.h so fixing it there is not enough,
add an __always_inline definition to uapi/linux/stddef.h instead.

Testcase: "make headers_install" and try to compile this:

	#include <linux/swab.h>
	void main() {}

Reported-by: Josh Boyer <jwboyer@fedoraproject.org>
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: David Rientjes <rientjes@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Thomas Graf <tgraf@suug.ch>
Cc: linux-kernel@vger.kernel.org
Link: http://lkml.kernel.org/r/1459289697-12875-1-git-send-email-dvlasenk@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Denys Vlasenko 2016-03-30 00:14:57 +02:00 committed by Ingo Molnar
parent a189c017de
commit 283d757378
1 changed files with 4 additions and 0 deletions
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4
include/uapi/linux/stddef.h
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@ -1 +1,5 @@
#include <linux/compiler.h>
#ifndef __always_inline
#define __always_inline inline
#endif