linux-kernel - [PATCH 2/2] security: use XATTR_*_PREFIX

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Message-Id: <1451851464-29550-1-git-send-email-toralf.foerster@gmx.de>
Date:	Sun,  3 Jan 2016 21:04:24 +0100
From:	Toralf Förster <toralf.foerster@....de>
To:	linux-security-module@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org,
	Toralf Förster <toralf.foerster@....de>
Subject: [PATCH 2/2] security: use XATTR_*_PREFIX_LEN instead sizeof(...)

use the definition in include/uapi/linux/xattr.h

Signed-off-by: Toralf Förster <toralf.foerster@....de>
---
 security/commoncap.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/security/commoncap.c b/security/commoncap.c
index 1832cf7..907a3ef 100644
--- a/security/commoncap.c
+++ b/security/commoncap.c
@@ -658,7 +658,7 @@ int cap_inode_setxattr(struct dentry *dentry, const char *name,
 	}
 
 	if (!strncmp(name, XATTR_SECURITY_PREFIX,
-		     sizeof(XATTR_SECURITY_PREFIX) - 1) &&
+		     XATTR_SECURITY_PREFIX_LEN) &&
 	    !capable(CAP_SYS_ADMIN))
 		return -EPERM;
 	return 0;
@@ -684,7 +684,7 @@ int cap_inode_removexattr(struct dentry *dentry, const char *name)
 	}
 
 	if (!strncmp(name, XATTR_SECURITY_PREFIX,
-		     sizeof(XATTR_SECURITY_PREFIX) - 1) &&
+		     XATTR_SECURITY_PREFIX_LEN) &&
 	    !capable(CAP_SYS_ADMIN))
 		return -EPERM;
 	return 0;
-- 
2.4.10

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