diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 2fe2f3f..fd1b645 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -37,14 +37,6 @@
 #include "ubifs.h"
 #include <mtd/ubi-user.h>
 
-int ubifs_iput(struct inode *inode)
-{
-	list_del_init(&inode->i_sb_list);
-
-	free(inode);
-	return 0;
-}
-
 /* from include/linux/fs.h */
 static inline void i_uid_write(struct inode *inode, uid_t uid)
 {
@@ -56,7 +48,7 @@
 	inode->i_gid = gid;
 }
 
-void unlock_new_inode(struct inode *inode)
+static void unlock_new_inode(struct inode *inode)
 {
 	return;
 }
diff --git a/fs/ubifs/ubifs.c b/fs/ubifs/ubifs.c
index bbe382d..7545dd4 100644
--- a/fs/ubifs/ubifs.c
+++ b/fs/ubifs/ubifs.c
@@ -401,7 +401,7 @@
 	return pos;
 }
 
-void ubifs_set_rootarg(struct ubifs_priv *priv, struct fs_device_d *fsdev)
+static void ubifs_set_rootarg(struct ubifs_priv *priv, struct fs_device_d *fsdev)
 {
 	struct ubi_volume_info vi = {};
 	struct ubi_device_info di = {};