br_debug
br_debug(br, "boolopt multi-toggle error: option: %d current: %d new: %d error: %d\n",
br_debug(br, "toggle option: %d state: %d -> %d\n",
br_debug(br, "flushing port ifindex: %d vlan id: %u flags: 0x%lx flags mask: 0x%lx\n",
br_debug(br, "br_fill_ifinfo event %d port %s master %s\n",
br_debug(br, "port %u(%s) event %d\n", port_no, dev->name, event);
br_debug(br, "decreasing ageing time to %lu\n", t);
br_debug(br, "restoring ageing time to %lu\n", t);
br_debug(br, BR_STP_PROG " received signal %d\n",
br_debug(br, BR_STP_PROG " exited with code %d\n",
br_debug(br, "userspace STP started\n");
br_debug(br, "using kernel STP\n");
br_debug(br, "tcn timer expired\n");
br_debug(br, "topo change timer expired\n");
br_debug(p->br, "port %u(%s) hold timer expired\n",
br_debug(br, "hello timer expired\n");
br_debug(br, "port %u(%s) forward delay timer\n",