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()
184 	struct net_device *slave_dev;  in net_failover_get_stats()  local
191 	slave_dev = rcu_dereference(nfo_info->primary_dev);  in net_failover_get_stats()
192 	if (slave_dev) {  in net_failover_get_stats()
193 		new = dev_get_stats(slave_dev, &temp);  in net_failover_get_stats()
198 	slave_dev = rcu_dereference(nfo_info->standby_dev);  in net_failover_get_stats()
199 	if (slave_dev) {  in net_failover_get_stats()
200 		new = dev_get_stats(slave_dev, &temp);  in net_failover_get_stats()
242 	struct net_device *slave_dev;  in net_failover_set_rx_mode()  local
246 	slave_dev = rcu_dereference(nfo_info->primary_dev);  in net_failover_set_rx_mode()
247 	if (slave_dev) {  in net_failover_set_rx_mode()
248 		dev_uc_sync_multiple(slave_dev, dev);  in net_failover_set_rx_mode()
249 		dev_mc_sync_multiple(slave_dev, dev);  in net_failover_set_rx_mode()
252 	slave_dev = rcu_dereference(nfo_info->standby_dev);  in net_failover_set_rx_mode()
253 	if (slave_dev) {  in net_failover_set_rx_mode()
254 		dev_uc_sync_multiple(slave_dev, dev);  in net_failover_set_rx_mode()
255 		dev_mc_sync_multiple(slave_dev, dev);  in net_failover_set_rx_mode()
290 	struct net_device *slave_dev;  in net_failover_vlan_rx_kill_vid()  local
292 	slave_dev = rcu_dereference(nfo_info->primary_dev);  in net_failover_vlan_rx_kill_vid()
293 	if (slave_dev)  in net_failover_vlan_rx_kill_vid()
294 		vlan_vid_del(slave_dev, proto, vid);  in net_failover_vlan_rx_kill_vid()
296 	slave_dev = rcu_dereference(nfo_info->standby_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()
331 	struct net_device *slave_dev;  in nfo_ethtool_get_link_ksettings()  local
333 	slave_dev = rtnl_dereference(nfo_info->primary_dev);  in nfo_ethtool_get_link_ksettings()
334 	if (!slave_dev || !net_failover_xmit_ready(slave_dev)) {  in nfo_ethtool_get_link_ksettings()
335 		slave_dev = rtnl_dereference(nfo_info->standby_dev);  in nfo_ethtool_get_link_ksettings()
336 		if (!slave_dev || !net_failover_xmit_ready(slave_dev)) {  in nfo_ethtool_get_link_ksettings()
345 	return __ethtool_get_link_ksettings(slave_dev, cmd);  in nfo_ethtool_get_link_ksettings()
431 static void net_failover_lower_state_changed(struct net_device *slave_dev,  in net_failover_lower_state_changed()  argument
437 	if (netif_carrier_ok(slave_dev))  in net_failover_lower_state_changed()
442 	if (slave_dev == primary_dev) {  in net_failover_lower_state_changed()
455 	netdev_lower_state_changed(slave_dev, &info);  in net_failover_lower_state_changed()
458 static int net_failover_slave_pre_register(struct net_device *slave_dev,  in net_failover_slave_pre_register()  argument
468 	slave_is_standby = slave_dev->dev.parent == failover_dev->dev.parent;  in net_failover_slave_pre_register()
471 			   slave_dev->name,  in net_failover_slave_pre_register()
480 	if (!slave_is_standby && (!slave_dev->dev.parent ||  in net_failover_slave_pre_register()
481 				  !dev_is_pci(slave_dev->dev.parent)))  in net_failover_slave_pre_register()
494 static int net_failover_slave_register(struct net_device *slave_dev,  in net_failover_slave_register()  argument
504 	orig_mtu = slave_dev->mtu;  in net_failover_slave_register()
505 	err = dev_set_mtu(slave_dev, failover_dev->mtu);  in net_failover_slave_register()
508 			   slave_dev->name, failover_dev->mtu);  in net_failover_slave_register()
512 	dev_hold(slave_dev);  in net_failover_slave_register()
515 		err = dev_open(slave_dev, NULL);  in net_failover_slave_register()
518 				   slave_dev->name, err);  in net_failover_slave_register()
524 	dev_uc_sync_multiple(slave_dev, failover_dev);  in net_failover_slave_register()
525 	dev_mc_sync_multiple(slave_dev, failover_dev);  in net_failover_slave_register()
528 	err = vlan_vids_add_by_dev(slave_dev, failover_dev);  in net_failover_slave_register()
531 			   slave_dev->name, err);  in net_failover_slave_register()
538 	slave_is_standby = slave_dev->dev.parent == failover_dev->dev.parent;  in net_failover_slave_register()
541 		rcu_assign_pointer(nfo_info->standby_dev, slave_dev);  in net_failover_slave_register()
542 		standby_dev = slave_dev;  in net_failover_slave_register()
545 		rcu_assign_pointer(nfo_info->primary_dev, slave_dev);  in net_failover_slave_register()
546 		primary_dev = slave_dev;  in net_failover_slave_register()
548 		failover_dev->min_mtu = slave_dev->min_mtu;  in net_failover_slave_register()
549 		failover_dev->max_mtu = slave_dev->max_mtu;  in net_failover_slave_register()
552 	net_failover_lower_state_changed(slave_dev, primary_dev, standby_dev);  in net_failover_slave_register()
555 	call_netdevice_notifiers(NETDEV_JOIN, slave_dev);  in net_failover_slave_register()
558 		    slave_is_standby ? "standby" : "primary", slave_dev->name);  in net_failover_slave_register()
563 	dev_uc_unsync(slave_dev, failover_dev);  in net_failover_slave_register()
564 	dev_mc_unsync(slave_dev, failover_dev);  in net_failover_slave_register()
565 	dev_close(slave_dev);  in net_failover_slave_register()
567 	dev_put(slave_dev);  in net_failover_slave_register()
568 	dev_set_mtu(slave_dev, orig_mtu);  in net_failover_slave_register()
573 static int net_failover_slave_pre_unregister(struct net_device *slave_dev,  in net_failover_slave_pre_unregister()  argument
583 	if (slave_dev != primary_dev && slave_dev != standby_dev)  in net_failover_slave_pre_unregister()
589 static int net_failover_slave_unregister(struct net_device *slave_dev,  in net_failover_slave_unregister()  argument
600 	if (WARN_ON_ONCE(slave_dev != primary_dev && slave_dev != standby_dev))  in net_failover_slave_unregister()
603 	vlan_vids_del_by_dev(slave_dev, failover_dev);  in net_failover_slave_unregister()
604 	dev_uc_unsync(slave_dev, failover_dev);  in net_failover_slave_unregister()
605 	dev_mc_unsync(slave_dev, failover_dev);  in net_failover_slave_unregister()
606 	dev_close(slave_dev);  in net_failover_slave_unregister()
611 	slave_is_standby = slave_dev->dev.parent == failover_dev->dev.parent;  in net_failover_slave_unregister()
622 	dev_put(slave_dev);  in net_failover_slave_unregister()
627 		    slave_is_standby ? "standby" : "primary", slave_dev->name);  in net_failover_slave_unregister()
632 static int net_failover_slave_link_change(struct net_device *slave_dev,  in net_failover_slave_link_change()  argument
643 	if (slave_dev != primary_dev && slave_dev != standby_dev)  in net_failover_slave_link_change()
656 	net_failover_lower_state_changed(slave_dev, primary_dev, standby_dev);  in net_failover_slave_link_change()
661 static int net_failover_slave_name_change(struct net_device *slave_dev,  in net_failover_slave_name_change()  argument
672 	if (slave_dev != primary_dev && slave_dev != standby_dev)  in net_failover_slave_name_change()
678 	dev_open(slave_dev, NULL);  in net_failover_slave_name_change()
792 	struct net_device *slave_dev;  in net_failover_destroy()  local
804 	slave_dev = rtnl_dereference(nfo_info->primary_dev);  in net_failover_destroy()
805 	if (slave_dev)  in net_failover_destroy()
806 		failover_slave_unregister(slave_dev);  in net_failover_destroy()
808 	slave_dev = rtnl_dereference(nfo_info->standby_dev);  in net_failover_destroy()
809 	if (slave_dev)  in net_failover_destroy()
810 		failover_slave_unregister(slave_dev);  in net_failover_destroy()