SUNRPC export xprt_iter_rewind function

Make xprt_iter_rewind callable outside of xprtmultipath.c
Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>

include/linux/sunrpc/xprtmultipath.h

@@ -68,6 +68,8 @@ extern void xprt_iter_init_listoffline(struct rpc_xprt_iter *xpi,
 
 extern void xprt_iter_destroy(struct rpc_xprt_iter *xpi);
 
+extern void xprt_iter_rewind(struct rpc_xprt_iter *xpi);
+
 extern struct rpc_xprt_switch *xprt_iter_xchg_switch(
 		struct rpc_xprt_iter *xpi,
 		struct rpc_xprt_switch *newswitch);

net/sunrpc/xprtmultipath.c

@@ -481,7 +481,6 @@ struct rpc_xprt *xprt_iter_next_entry_offline(struct rpc_xprt_iter *xpi)
  * Resets xpi to ensure that it points to the first entry in the list
  * of transports.
  */
-static
 void xprt_iter_rewind(struct rpc_xprt_iter *xpi)
 {
 	rcu_read_lock();