datapath: Consider tunnels to have no MTU, fixing jumbo frame support.

[sliver-openvswitch.git] / lib / dpif-netdev.c

diff --git a/lib/dpif-netdev.c b/lib/dpif-netdev.c
index acc14a8..93dd1cd 100644 (file)
--- a/lib/dpif-netdev.c
+++ b/lib/dpif-netdev.c
@@ -375,7 +375,7 @@ do_add_port(struct dp_netdev *dp, const char *devname, const char *type,
     port->internal = internal;
 
     netdev_get_mtu(netdev, &mtu);
-    if (mtu > max_mtu) {
+    if (mtu != INT_MAX && mtu > max_mtu) {
         max_mtu = mtu;
     }