extern int cifs_mount(struct super_block *, struct cifs_sb_info *, char *,
const char *);
extern int cifs_umount(struct super_block *, struct cifs_sb_info *);
-#ifdef CONFIG_CIFS_DFS
+#ifdef CONFIG_CIFS_DFS_UPCALL
extern void dfs_shrink_umount_helper(struct vfsmount *vfsmnt);
#else
static inline void dfs_shrink_umount_helper(struct vfsmount *vfsmnt)