#ifdef CONFIG_NFS_V4
extern int nfs_callback_up(u32 minorversion, struct rpc_xprt *xprt);
-extern void nfs_callback_down(void);
-#else
-#define nfs_callback_up() (0)
-#define nfs_callback_down() do {} while(0)
-#endif
+extern void nfs_callback_down(int minorversion);
+#endif /* CONFIG_NFS_V4 */
/*
* nfs41: Callbacks are expected to not cause substantial latency,