linux-kernel - [PATCH] uapi/linux/stddef.h: Provide __always

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Date:	Wed, 30 Mar 2016 00:14:57 +0200
From:	Denys Vlasenko <dvlasenk@...hat.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Denys Vlasenko <dvlasenk@...hat.com>,
	Josh Boyer <jwboyer@...oraproject.org>,
	Thomas Graf <tgraf@...g.ch>,
	Peter Zijlstra <peterz@...radead.org>,
	David Rientjes <rientjes@...gle.com>,
	Arnd Bergmann <arnd@...db.de>, Ingo Molnar <mingo@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] uapi/linux/stddef.h: Provide __always_inline to userspace headers

Recent change to uapi/linux/swab.h needs this.

Unfortunately, UAPI headers don't include compiler.h and fixing it there is not enough.

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

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

Signed-off-by: Denys Vlasenko <dvlasenk@...hat.com>
CC: Josh Boyer <jwboyer@...oraproject.org>
CC: Thomas Graf <tgraf@...g.ch>
CC: Peter Zijlstra <peterz@...radead.org>
CC: David Rientjes <rientjes@...gle.com>
CC: Arnd Bergmann <arnd@...db.de>
CC: Ingo Molnar <mingo@...nel.org>
CC: Andrew Morton <akpm@...ux-foundation.org>
CC: Linus Torvalds <torvalds@...ux-foundation.org>
CC: linux-kernel@...r.kernel.org
---
 include/uapi/linux/stddef.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/uapi/linux/stddef.h b/include/uapi/linux/stddef.h
index aa9f104..621fa8a 100644
--- a/include/uapi/linux/stddef.h
+++ b/include/uapi/linux/stddef.h
@@ -1 +1,5 @@
 #include <linux/compiler.h>
+
+#ifndef __always_inline
+#define __always_inline inline
+#endif
-- 
1.8.1.4