diff options
| author | Filipe Brandenburger <filbranden@google.com> | 2014-08-29 15:18:51 -0700 |
|---|---|---|
| committer | Jiri Slaby <jslaby@suse.cz> | 2014-10-13 14:25:34 +0200 |
| commit | af16efcfa36e628be58efd7e0f81e6bf327355fa (patch) | |
| tree | 75f6b5cc21983d8f30f3f87312efbfba34a40a22 /include/uapi/linux | |
| parent | 225bdf83cf1b47cc2d574cd8b7b7ce03a3b34641 (diff) | |
xattr: fix check for simultaneous glibc header inclusion
commit bfcfd44cce2774f19daeb59fb4e43fc9aa80e7b8 upstream.
The guard was introduced in commit ea1a8217b06b ("xattr: guard against
simultaneous glibc header inclusion") but it is using #ifdef to check
for a define that is either set to 1 or 0. Fix it to use #if instead.
* Without this patch:
$ { echo "#include <sys/xattr.h>"; echo "#include <linux/xattr.h>"; } | gcc -E -Iinclude/uapi - >/dev/null
include/uapi/linux/xattr.h:19:0: warning: "XATTR_CREATE" redefined [enabled by default]
#define XATTR_CREATE 0x1 /* set value, fail if attr already exists */
^
/usr/include/x86_64-linux-gnu/sys/xattr.h:32:0: note: this is the location of the previous definition
#define XATTR_CREATE XATTR_CREATE
^
* With this patch:
$ { echo "#include <sys/xattr.h>"; echo "#include <linux/xattr.h>"; } | gcc -E -Iinclude/uapi - >/dev/null
(no warnings)
Signed-off-by: Filipe Brandenburger <filbranden@google.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>
Cc: Allan McRae <allan@archlinux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Diffstat (limited to 'include/uapi/linux')
| -rw-r--r-- | include/uapi/linux/xattr.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/uapi/linux/xattr.h b/include/uapi/linux/xattr.h index a63c14607f86..f2765c1ca32a 100644 --- a/include/uapi/linux/xattr.h +++ b/include/uapi/linux/xattr.h @@ -13,7 +13,7 @@ #ifndef _UAPI_LINUX_XATTR_H #define _UAPI_LINUX_XATTR_H -#ifdef __UAPI_DEF_XATTR +#if __UAPI_DEF_XATTR #define __USE_KERNEL_XATTR_DEFS #define XATTR_CREATE 0x1 /* set value, fail if attr already exists */ |