linux-kernel - [PATCH 01/10] vfs: Remove vfs_xattr

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Date:	Mon, 30 Nov 2015 22:43:34 +0100
From:	Andreas Gruenbacher <agruenba@...hat.com>
To:	Alexander Viro <viro@...iv.linux.org.uk>,
	Christoph Hellwig <hch@...radead.org>,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org
Cc:	Andreas Gruenbacher <agruenba@...hat.com>
Subject: [PATCH 01/10] vfs: Remove vfs_xattr_cmp

This function was only briefly used in security/integrity/evm, between
commits 66dbc325 and 15647eb3.

Signed-off-by: Andreas Gruenbacher <agruenba@...hat.com>
---
 fs/xattr.c            | 19 -------------------
 include/linux/xattr.h |  2 --
 2 files changed, 21 deletions(-)

diff --git a/fs/xattr.c b/fs/xattr.c
index 9b932b9..58bdabc 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -208,25 +208,6 @@ vfs_getxattr_alloc(struct dentry *dentry, const char *name, char **xattr_value,
 	return error;
 }
 
-/* Compare an extended attribute value with the given value */
-int vfs_xattr_cmp(struct dentry *dentry, const char *xattr_name,
-		  const char *value, size_t size, gfp_t flags)
-{
-	char *xattr_value = NULL;
-	int rc;
-
-	rc = vfs_getxattr_alloc(dentry, xattr_name, &xattr_value, 0, flags);
-	if (rc < 0)
-		return rc;
-
-	if ((rc != size) || (memcmp(xattr_value, value, rc) != 0))
-		rc = -EINVAL;
-	else
-		rc = 0;
-	kfree(xattr_value);
-	return rc;
-}
-
 ssize_t
 vfs_getxattr(struct dentry *dentry, const char *name, void *value, size_t size)
 {
diff --git a/include/linux/xattr.h b/include/linux/xattr.h
index 89474b9..45fa345 100644
--- a/include/linux/xattr.h
+++ b/include/linux/xattr.h
@@ -53,8 +53,6 @@ int generic_setxattr(struct dentry *dentry, const char *name, const void *value,
 int generic_removexattr(struct dentry *dentry, const char *name);
 ssize_t vfs_getxattr_alloc(struct dentry *dentry, const char *name,
 			   char **xattr_value, size_t size, gfp_t flags);
-int vfs_xattr_cmp(struct dentry *dentry, const char *xattr_name,
-		  const char *value, size_t size, gfp_t flags);
 
 struct simple_xattrs {
 	struct list_head head;
-- 
2.5.0

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