74 	struct net_device *slave_dev;  in net_failover_close()  local
78 	slave_dev = rtnl_dereference(nfo_info->primary_dev);  in net_failover_close()
79 	if (slave_dev)  in net_failover_close()
80 		dev_close(slave_dev);  in net_failover_close()
82 	slave_dev = rtnl_dereference(nfo_info->standby_dev);  in net_failover_close()
83 	if (slave_dev)  in net_failover_close()
84 		dev_close(slave_dev);  in net_failover_close()
188 	struct net_device *slave_dev;  in net_failover_get_stats()  local
195 	slave_dev = rcu_dereference(nfo_info->primary_dev);  in net_failover_get_stats()
196 	if (slave_dev) {  in net_failover_get_stats()
197 		new = dev_get_stats(slave_dev, &temp);  in net_failover_get_stats()
202 	slave_dev = rcu_dereference(nfo_info->standby_dev);  in net_failover_get_stats()
203 	if (slave_dev) {  in net_failover_get_stats()
204 		new = dev_get_stats(slave_dev, &temp);  in net_failover_get_stats()
246 	struct net_device *slave_dev;  in net_failover_set_rx_mode()  local
250 	slave_dev = rcu_dereference(nfo_info->primary_dev);  in net_failover_set_rx_mode()
251 	if (slave_dev) {  in net_failover_set_rx_mode()
252 		dev_uc_sync_multiple(slave_dev, dev);  in net_failover_set_rx_mode()
253 		dev_mc_sync_multiple(slave_dev, dev);  in net_failover_set_rx_mode()
256 	slave_dev = rcu_dereference(nfo_info->standby_dev);  in net_failover_set_rx_mode()
257 	if (slave_dev) {  in net_failover_set_rx_mode()
258 		dev_uc_sync_multiple(slave_dev, dev);  in net_failover_set_rx_mode()
259 		dev_mc_sync_multiple(slave_dev, dev);  in net_failover_set_rx_mode()
294 	struct net_device *slave_dev;  in net_failover_vlan_rx_kill_vid()  local
296 	slave_dev = rcu_dereference(nfo_info->primary_dev);  in net_failover_vlan_rx_kill_vid()
297 	if (slave_dev)  in net_failover_vlan_rx_kill_vid()
298 		vlan_vid_del(slave_dev, proto, vid);  in net_failover_vlan_rx_kill_vid()
300 	slave_dev = rcu_dereference(nfo_info->standby_dev);  in net_failover_vlan_rx_kill_vid()
301 	if (slave_dev)  in net_failover_vlan_rx_kill_vid()
302 		vlan_vid_del(slave_dev, proto, vid);  in net_failover_vlan_rx_kill_vid()
335 	struct net_device *slave_dev;  in nfo_ethtool_get_link_ksettings()  local
337 	slave_dev = rtnl_dereference(nfo_info->primary_dev);  in nfo_ethtool_get_link_ksettings()
338 	if (!slave_dev || !net_failover_xmit_ready(slave_dev)) {  in nfo_ethtool_get_link_ksettings()
339 		slave_dev = rtnl_dereference(nfo_info->standby_dev);  in nfo_ethtool_get_link_ksettings()
340 		if (!slave_dev || !net_failover_xmit_ready(slave_dev)) {  in nfo_ethtool_get_link_ksettings()
349 	return __ethtool_get_link_ksettings(slave_dev, cmd);  in nfo_ethtool_get_link_ksettings()
435 static void net_failover_lower_state_changed(struct net_device *slave_dev,  in net_failover_lower_state_changed()  argument
441 	if (netif_carrier_ok(slave_dev))  in net_failover_lower_state_changed()
446 	if (slave_dev == primary_dev) {  in net_failover_lower_state_changed()
459 	netdev_lower_state_changed(slave_dev, &info);  in net_failover_lower_state_changed()
462 static int net_failover_slave_pre_register(struct net_device *slave_dev,  in net_failover_slave_pre_register()  argument
472 	slave_is_standby = slave_dev->dev.parent == failover_dev->dev.parent;  in net_failover_slave_pre_register()
475 			   slave_dev->name,  in net_failover_slave_pre_register()
484 	if (!slave_is_standby && (!slave_dev->dev.parent ||  in net_failover_slave_pre_register()
485 				  !dev_is_pci(slave_dev->dev.parent)))  in net_failover_slave_pre_register()
498 static int net_failover_slave_register(struct net_device *slave_dev,  in net_failover_slave_register()  argument
508 	orig_mtu = slave_dev->mtu;  in net_failover_slave_register()
509 	err = dev_set_mtu(slave_dev, failover_dev->mtu);  in net_failover_slave_register()
512 			   slave_dev->name, failover_dev->mtu);  in net_failover_slave_register()
516 	dev_hold(slave_dev);  in net_failover_slave_register()
519 		err = dev_open(slave_dev, NULL);  in net_failover_slave_register()
522 				   slave_dev->name, err);  in net_failover_slave_register()
528 	dev_uc_sync_multiple(slave_dev, failover_dev);  in net_failover_slave_register()
529 	dev_mc_sync_multiple(slave_dev, failover_dev);  in net_failover_slave_register()
532 	err = vlan_vids_add_by_dev(slave_dev, failover_dev);  in net_failover_slave_register()
535 			   slave_dev->name, err);  in net_failover_slave_register()
542 	slave_is_standby = slave_dev->dev.parent == failover_dev->dev.parent;  in net_failover_slave_register()
545 		rcu_assign_pointer(nfo_info->standby_dev, slave_dev);  in net_failover_slave_register()
546 		standby_dev = slave_dev;  in net_failover_slave_register()
549 		rcu_assign_pointer(nfo_info->primary_dev, slave_dev);  in net_failover_slave_register()
550 		primary_dev = slave_dev;  in net_failover_slave_register()
552 		failover_dev->min_mtu = slave_dev->min_mtu;  in net_failover_slave_register()
553 		failover_dev->max_mtu = slave_dev->max_mtu;  in net_failover_slave_register()
556 	net_failover_lower_state_changed(slave_dev, primary_dev, standby_dev);  in net_failover_slave_register()
559 	call_netdevice_notifiers(NETDEV_JOIN, slave_dev);  in net_failover_slave_register()
562 		    slave_is_standby ? "standby" : "primary", slave_dev->name);  in net_failover_slave_register()
567 	dev_uc_unsync(slave_dev, failover_dev);  in net_failover_slave_register()
568 	dev_mc_unsync(slave_dev, failover_dev);  in net_failover_slave_register()
569 	dev_close(slave_dev);  in net_failover_slave_register()
571 	dev_put(slave_dev);  in net_failover_slave_register()
572 	dev_set_mtu(slave_dev, orig_mtu);  in net_failover_slave_register()
577 static int net_failover_slave_pre_unregister(struct net_device *slave_dev,  in net_failover_slave_pre_unregister()  argument
587 	if (slave_dev != primary_dev && slave_dev != standby_dev)  in net_failover_slave_pre_unregister()
593 static int net_failover_slave_unregister(struct net_device *slave_dev,  in net_failover_slave_unregister()  argument
604 	if (WARN_ON_ONCE(slave_dev != primary_dev && slave_dev != standby_dev))  in net_failover_slave_unregister()
607 	vlan_vids_del_by_dev(slave_dev, failover_dev);  in net_failover_slave_unregister()
608 	dev_uc_unsync(slave_dev, failover_dev);  in net_failover_slave_unregister()
609 	dev_mc_unsync(slave_dev, failover_dev);  in net_failover_slave_unregister()
610 	dev_close(slave_dev);  in net_failover_slave_unregister()
615 	slave_is_standby = slave_dev->dev.parent == failover_dev->dev.parent;  in net_failover_slave_unregister()
626 	dev_put(slave_dev);  in net_failover_slave_unregister()
631 		    slave_is_standby ? "standby" : "primary", slave_dev->name);  in net_failover_slave_unregister()
636 static int net_failover_slave_link_change(struct net_device *slave_dev,  in net_failover_slave_link_change()  argument
647 	if (slave_dev != primary_dev && slave_dev != standby_dev)  in net_failover_slave_link_change()
660 	net_failover_lower_state_changed(slave_dev, primary_dev, standby_dev);  in net_failover_slave_link_change()
665 static int net_failover_slave_name_change(struct net_device *slave_dev,  in net_failover_slave_name_change()  argument
676 	if (slave_dev != primary_dev && slave_dev != standby_dev)  in net_failover_slave_name_change()
682 	dev_open(slave_dev, NULL);  in net_failover_slave_name_change()
797 	struct net_device *slave_dev;  in net_failover_destroy()  local
809 	slave_dev = rtnl_dereference(nfo_info->primary_dev);  in net_failover_destroy()
810 	if (slave_dev)  in net_failover_destroy()
811 		failover_slave_unregister(slave_dev);  in net_failover_destroy()
813 	slave_dev = rtnl_dereference(nfo_info->standby_dev);  in net_failover_destroy()
814 	if (slave_dev)  in net_failover_destroy()
815 		failover_slave_unregister(slave_dev);  in net_failover_destroy()