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authorSerge Hallyn <serge.hallyn@ubuntu.com>2014-04-04 01:48:33 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2014-04-04 03:21:06 +0400
commitea1a8217b06b41b31a2b60b0b83f75c77ef9c873 (patch)
treebfff18284431af103bb746ea570cd09874b2b87c /include/uapi/linux/xattr.h
parente9107f88c985bcda5a8ec692cd692005738136f1 (diff)
downloadlinux-ea1a8217b06b41b31a2b60b0b83f75c77ef9c873.tar.xz
xattr: guard against simultaneous glibc header inclusion
If the glibc xattr.h header is included after the uapi header, compilation fails due to an enum re-using a #define from the uapi header. Protect against this by guarding the define and enum inclusions against each other. (See https://lists.debian.org/debian-glibc/2014/03/msg00029.html and https://sourceware.org/glibc/wiki/Synchronizing_Headers for more information.) Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Allan McRae <allan@archlinux.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/uapi/linux/xattr.h')
-rw-r--r--include/uapi/linux/xattr.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/uapi/linux/xattr.h b/include/uapi/linux/xattr.h
index 40bbc04b6f81..c38355c1f3c9 100644
--- a/include/uapi/linux/xattr.h
+++ b/include/uapi/linux/xattr.h
@@ -7,11 +7,18 @@
Copyright (c) 2001-2002 Silicon Graphics, Inc. All Rights Reserved.
Copyright (c) 2004 Red Hat, Inc., James Morris <jmorris@redhat.com>
*/
+
+#include <linux/libc-compat.h>
+
#ifndef _UAPI_LINUX_XATTR_H
#define _UAPI_LINUX_XATTR_H
+#ifdef __UAPI_DEF_XATTR
+#define __USE_KERNEL_XATTR_DEFS
+
#define XATTR_CREATE 0x1 /* set value, fail if attr already exists */
#define XATTR_REPLACE 0x2 /* set value, fail if attr does not exist */
+#endif
/* Namespaces */
#define XATTR_OS2_PREFIX "os2."