SUNRPC: Add a convenient default for the hostname when calling rpc_create()
A couple of callers just use a stringified IP address for the rpc client's
hostname. Move the logic for constructing this into rpc_create(), so it can
be shared.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index e1553cf..0d9b527 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -234,6 +234,7 @@
{
struct rpc_xprt *xprt;
struct rpc_clnt *clnt;
+ char servername[20];
xprt = xprt_create_transport(args->protocol, args->address,
args->addrsize, args->timeout);
@@ -241,6 +242,18 @@
return (struct rpc_clnt *)xprt;
/*
+ * If the caller chooses not to specify a hostname, whip
+ * up a string representation of the passed-in address.
+ */
+ if (args->servername == NULL) {
+ struct sockaddr_in *addr =
+ (struct sockaddr_in *) &args->address;
+ snprintf(servername, sizeof(servername), NIPQUAD_FMT,
+ NIPQUAD(addr->sin_addr.s_addr));
+ args->servername = servername;
+ }
+
+ /*
* By default, kernel RPC client connects from a reserved port.
* CAP_NET_BIND_SERVICE will not be set for unprivileged requesters,
* but it is always enabled for rpciod, which handles the connect