1From dc221138c809125dc1bbff8506c70cb7bd846368 Mon Sep 17 00:00:00 2001 2From: Khem Raj <raj.khem@gmail.com> 3Date: Wed, 12 Sep 2018 17:08:58 -0700 4Subject: [PATCH] include linux/stddef.h in swab.h uapi header 5 6swab.h uses __always_inline without including the header where it is 7defined, this is exposed by musl based distributions where this macro is 8not defined by system C library headers unlike glibc where it is defined 9in sys/cdefs.h and that header gets pulled in indirectly via 10 11features.h -> sys/cdefs.h 12 13and features.h gets pulled in a lot of headers. Therefore it may work in 14cases where features.h is includes but not otherwise. 15 16Adding linux/stddef.h here ensures that __always_inline is always 17defined independent of which C library is used in userspace 18 19Upstream-Status: Submitted [https://lkml.org/lkml/2018/9/13/78] 20 21Signed-off-by: Khem Raj <raj.khem@gmail.com> 22Cc: Philippe Ombredanne <pombredanne@nexb.com> 23Cc: Kate Stewart <kstewart@linuxfoundation.org> 24Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 25Cc: Thomas Gleixner <tglx@linutronix.de> 26 27--- 28 include/uapi/linux/swab.h | 1 + 29 1 file changed, 1 insertion(+) 30 31diff --git a/include/uapi/linux/swab.h b/include/uapi/linux/swab.h 32index 7272f85d6..2912fe463 100644 33--- a/include/uapi/linux/swab.h 34+++ b/include/uapi/linux/swab.h 35@@ -3,6 +3,7 @@ 36 #define _UAPI_LINUX_SWAB_H 37 38 #include <linux/types.h> 39+#include <linux/stddef.h> 40 #include <linux/compiler.h> 41 #include <asm/bitsperlong.h> 42 #include <asm/swab.h> 43