sset_find_and_delete(&ofproto->ghost_ports,
netdev_get_name(ofport->up.netdev));
ofproto->backer->need_revalidate = REV_RECONFIGURE;
sset_find_and_delete(&ofproto->ghost_ports,
netdev_get_name(ofport->up.netdev));
ofproto->backer->need_revalidate = REV_RECONFIGURE;