Commit-ID:  283d757378371e8044d873e661b1dccee46c5887
Gitweb:     http://git.kernel.org/tip/283d757378371e8044d873e661b1dccee46c5887
Author:     Denys Vlasenko <[email protected]>
AuthorDate: Wed, 30 Mar 2016 00:14:57 +0200
Committer:  Ingo Molnar <[email protected]>
CommitDate: Wed, 30 Mar 2016 12:50:17 +0200

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

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

  bc27fb68aaad ("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 <[email protected]>
Signed-off-by: Denys Vlasenko <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: David Rientjes <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Thomas Graf <[email protected]>
Cc: [email protected]
Link: 
http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
---
 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

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