[PATCH 5/7] btrfs: cleanup: mark 'btrfs_read_root_item' as static

[Sergei Trofimovich <slyich@gmail.com>]

From: Sergei Trofimovich <slyfox@gentoo.org>

Found by uselex.rb:
> btrfs_read_root_item: [R]: exported from: fs/btrfs/btrfs.o fs/btrfs/built-in.o fs/btrfs/root-tree.o

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
---
 fs/btrfs/ctree.h     | 2 --
 fs/btrfs/root-tree.c | 4 ++--
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index e795bf1..e91ab9e 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3414,8 +3414,6 @@ int __must_check btrfs_update_root(struct btrfs_trans_handle *trans,
 				   struct btrfs_root *root,
 				   struct btrfs_key *key,
 				   struct btrfs_root_item *item);
-void btrfs_read_root_item(struct extent_buffer *eb, int slot,
-			  struct btrfs_root_item *item);
 int btrfs_find_root(struct btrfs_root *root, struct btrfs_key *search_key,
 		    struct btrfs_path *path, struct btrfs_root_item *root_item,
 		    struct btrfs_key *root_key);
diff --git a/fs/btrfs/root-tree.c b/fs/btrfs/root-tree.c
index ffb1036..65ecc15 100644
--- a/fs/btrfs/root-tree.c
+++ b/fs/btrfs/root-tree.c
@@ -29,8 +29,8 @@
  * generation numbers as then we know the root was once mounted with an older
  * kernel that was not aware of the root item structure change.
  */
-void btrfs_read_root_item(struct extent_buffer *eb, int slot,
-			  struct btrfs_root_item *item)
+static void btrfs_read_root_item(struct extent_buffer *eb, int slot,
+				 struct btrfs_root_item *item)
 {
 	uuid_le uuid;
 	int len;
-- 
1.8.3.2