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From 9708dc74d9f49488d669e070982f6224a888d61a Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Wed, 12 Sep 2018 17:08:58 -0700
Subject: [PATCH] include linux/stddef.h in swab.h uapi header
swab.h uses __always_inline without including the header where it is
defined, this is exposed by musl based distributions where this macro is
not defined by system C library headers unlike glibc where it is defined
in sys/cdefs.h and that header gets pulled in indirectly via
features.h -> sys/cdefs.h
and features.h gets pulled in a lot of headers. Therefore it may work in
cases where features.h is includes but not otherwise.
Adding linux/stddef.h here ensures that __always_inline is always
defined independent of which C library is used in userspace
Upstream-Status: Submitted [https://lkml.org/lkml/2018/9/13/78]
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
---
include/uapi/linux/swab.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/uapi/linux/swab.h b/include/uapi/linux/swab.h
index 23cd84868cc3..acddbe50a20d 100644
--- a/include/uapi/linux/swab.h
+++ b/include/uapi/linux/swab.h
@@ -3,6 +3,7 @@
#define _UAPI_LINUX_SWAB_H
#include <linux/types.h>
+#include <linux/stddef.h>
#include <linux/compiler.h>
#include <asm/swab.h>
--
2.19.0
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