sunrpc: don't register UDP port with rpcbind when version needs congestion control

jtlayton · J. Bruce Fields · commit 7259f1dfe718 · 2017-02-24T17:04:48.000-05:00
Signed-off-by: Jeff Layton &lt;jlayton@redhat.com&gt;
Signed-off-by: J. Bruce Fields &lt;bfields@redhat.com&gt;
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
@@ -976,6 +976,13 @@ int svc_register(const struct svc_serv *serv, struct net *net,
 			if (vers->vs_hidden)
 				continue;
 
+			/*
+			 * Don't register a UDP port if we need congestion
+			 * control.
+			 */
+			if (vers->vs_need_cong_ctrl && proto == IPPROTO_UDP)
+				continue;
+
 			error = __svc_register(net, progp->pg_name, progp->pg_prog,
 						i, family, proto, port);
 
