slsm: passtfs: add missing statics

security/slsm/passtfs.c

@@ -20,7 +20,7 @@ static struct dentry *passtfs_dir;
 static struct dentry *passtfs_profiles;
 
 
-int profiles_open(struct inode *inode, struct file *file)
+static int profiles_open(struct inode *inode, struct file *file)
 {
 	struct passtfs_privdata *pd = kzalloc(sizeof(*pd), GFP_KERNEL);
 	if (!pd)
@@ -73,7 +73,7 @@ out:
  *
  * Return value is returned by close(2)
  */
-int profiles_flush(struct file *file, fl_owner_t id)
+static int profiles_flush(struct file *file, fl_owner_t id)
 {
 	struct passtfs_privdata *pd = file->private_data;
 	int ret = 0;
@@ -93,7 +93,7 @@ int profiles_flush(struct file *file, fl_owner_t id)
  *
  *  Return value is ignored.
  */
-int profiles_release(struct inode *inode, struct file *file)
+static int profiles_release(struct inode *inode, struct file *file)
 {
 	struct passtfs_privdata *pd = file->private_data;
 	BUG_ON(!pd);