ext4: make ext4_xattr_list() static

This patch makes the needlessly global ext4_xattr_list() static.

Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index bc1d7da..7399304 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -92,6 +92,8 @@
 						 struct mb_cache_entry **);
 static void ext4_xattr_rehash(struct ext4_xattr_header *,
 			      struct ext4_xattr_entry *);
+static int ext4_xattr_list(struct inode *inode, char *buffer,
+			   size_t buffer_size);
 
 static struct mb_cache *ext4_xattr_cache;
 
@@ -420,7 +422,7 @@
  * Returns a negative error number on failure, or the number of bytes
  * used / required on success.
  */
-int
+static int
 ext4_xattr_list(struct inode *inode, char *buffer, size_t buffer_size)
 {
 	int i_error, b_error;
diff --git a/fs/ext4/xattr.h b/fs/ext4/xattr.h
index d7f5d6a..5992fe9 100644
--- a/fs/ext4/xattr.h
+++ b/fs/ext4/xattr.h
@@ -74,7 +74,6 @@
 extern ssize_t ext4_listxattr(struct dentry *, char *, size_t);
 
 extern int ext4_xattr_get(struct inode *, int, const char *, void *, size_t);
-extern int ext4_xattr_list(struct inode *, char *, size_t);
 extern int ext4_xattr_set(struct inode *, int, const char *, const void *, size_t, int);
 extern int ext4_xattr_set_handle(handle_t *, struct inode *, int, const char *, const void *, size_t, int);
 
@@ -99,12 +98,6 @@
 }
 
 static inline int
-ext4_xattr_list(struct inode *inode, void *buffer, size_t size)
-{
-	return -EOPNOTSUPP;
-}
-
-static inline int
 ext4_xattr_set(struct inode *inode, int name_index, const char *name,
 	       const void *value, size_t size, int flags)
 {