SUNRPC: Fix sparse warnings

 - net/sunrpc/xprtsock.c:1635:5: warning: symbol 'init_socket_xprt' was not
   declared. Should it be static?
 - net/sunrpc/xprtsock.c:1649:6: warning: symbol 'cleanup_socket_xprt' was
   not declared. Should it be static?
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

include/linux/sunrpc/rpc_pipe_fs.h

@@ -47,6 +47,8 @@ extern struct dentry *rpc_mkpipe(struct dentry *, const char *, void *, struct r
 extern int rpc_unlink(struct dentry *);
 extern struct vfsmount *rpc_get_mount(void);
 extern void rpc_put_mount(void);
+extern int register_rpc_pipefs(void);
+extern void unregister_rpc_pipefs(void);
 
 #endif
 #endif

include/linux/sunrpc/xprt.h

@@ -244,6 +244,8 @@ void			xprt_disconnect(struct rpc_xprt *xprt);
  */
 struct rpc_xprt *	xs_setup_udp(struct sockaddr *addr, size_t addrlen, struct rpc_timeout *to);
 struct rpc_xprt *	xs_setup_tcp(struct sockaddr *addr, size_t addrlen, struct rpc_timeout *to);
+int			init_socket_xprt(void);
+void			cleanup_socket_xprt(void);
 
 /*
  * Reserved bit positions in xprt->state

net/sunrpc/sunrpc_syms.c

@@ -134,11 +134,7 @@ EXPORT_SYMBOL(nfsd_debug);
 EXPORT_SYMBOL(nlm_debug);
 #endif
 
-extern int register_rpc_pipefs(void);
-extern void unregister_rpc_pipefs(void);
 extern struct cache_detail ip_map_cache, unix_gid_cache;
-extern int init_socket_xprt(void);
-extern void cleanup_socket_xprt(void);
 
 static int __init
 init_sunrpc(void)