br_warn
br_warn(br, "received packet on %s with own address as source address (addr:%pM, vlan:%u)\n",
br_warn(br, "adding interface %s with same address as a received packet (addr:%pM, vlan:%u)\n",
br_warn(br, "the hash_elasticity option has been deprecated and is always %u\n",
br_warn(p->br, "error setting MST state on port %u(%s)\n",
br_warn(p->br, "error setting offload STP state on port %u(%s)\n",
br_warn(br, "error offloading ageing time\n");
br_warn(br, "%s\n", extack._msg);