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

[Denys Vlasenko <dvlasenk@redhat.com>]

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@redhat.com>
CC: Josh Boyer <jwboyer@fedoraproject.org>
CC: Thomas Graf <tgraf@suug.ch>
CC: Peter Zijlstra <peterz@infradead.org>
CC: David Rientjes <rientjes@google.com>
CC: Arnd Bergmann <arnd@arndb.de>
CC: Ingo Molnar <mingo@kernel.org>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Linus Torvalds <torvalds@linux-foundation.org>
CC: linux-kernel@vger.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