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()
190 	struct net_device *slave_dev;  in net_failover_get_stats()  local
197 	slave_dev = rcu_dereference(nfo_info->primary_dev);  in net_failover_get_stats()
198 	if (slave_dev) {  in net_failover_get_stats()
199 		new = dev_get_stats(slave_dev, &temp);  in net_failover_get_stats()
204 	slave_dev = rcu_dereference(nfo_info->standby_dev);  in net_failover_get_stats()
205 	if (slave_dev) {  in net_failover_get_stats()
206 		new = dev_get_stats(slave_dev, &temp);  in net_failover_get_stats()
248 	struct net_device *slave_dev;  in net_failover_set_rx_mode()  local
252 	slave_dev = rcu_dereference(nfo_info->primary_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()
258 	slave_dev = rcu_dereference(nfo_info->standby_dev);  in net_failover_set_rx_mode()
259 	if (slave_dev) {  in net_failover_set_rx_mode()
260 		dev_uc_sync_multiple(slave_dev, dev);  in net_failover_set_rx_mode()
261 		dev_mc_sync_multiple(slave_dev, dev);  in net_failover_set_rx_mode()
296 	struct net_device *slave_dev;  in net_failover_vlan_rx_kill_vid()  local
298 	slave_dev = rcu_dereference(nfo_info->primary_dev);  in net_failover_vlan_rx_kill_vid()
299 	if (slave_dev)  in net_failover_vlan_rx_kill_vid()
300 		vlan_vid_del(slave_dev, proto, vid);  in net_failover_vlan_rx_kill_vid()
302 	slave_dev = rcu_dereference(nfo_info->standby_dev);  in net_failover_vlan_rx_kill_vid()
303 	if (slave_dev)  in net_failover_vlan_rx_kill_vid()
304 		vlan_vid_del(slave_dev, proto, vid);  in net_failover_vlan_rx_kill_vid()
337 	struct net_device *slave_dev;  in nfo_ethtool_get_link_ksettings()  local
339 	slave_dev = rtnl_dereference(nfo_info->primary_dev);  in nfo_ethtool_get_link_ksettings()
340 	if (!slave_dev || !net_failover_xmit_ready(slave_dev)) {  in nfo_ethtool_get_link_ksettings()
341 		slave_dev = rtnl_dereference(nfo_info->standby_dev);  in nfo_ethtool_get_link_ksettings()
342 		if (!slave_dev || !net_failover_xmit_ready(slave_dev)) {  in nfo_ethtool_get_link_ksettings()
351 	return __ethtool_get_link_ksettings(slave_dev, cmd);  in nfo_ethtool_get_link_ksettings()
437 static void net_failover_lower_state_changed(struct net_device *slave_dev,  in net_failover_lower_state_changed()  argument
443 	if (netif_carrier_ok(slave_dev))  in net_failover_lower_state_changed()
448 	if (slave_dev == primary_dev) {  in net_failover_lower_state_changed()
461 	netdev_lower_state_changed(slave_dev, &info);  in net_failover_lower_state_changed()
464 static int net_failover_slave_pre_register(struct net_device *slave_dev,  in net_failover_slave_pre_register()  argument
474 	slave_is_standby = slave_dev->dev.parent == failover_dev->dev.parent;  in net_failover_slave_pre_register()
477 			   slave_dev->name,  in net_failover_slave_pre_register()
486 	if (!slave_is_standby && (!slave_dev->dev.parent ||  in net_failover_slave_pre_register()
487 				  !dev_is_pci(slave_dev->dev.parent)))  in net_failover_slave_pre_register()
500 static int net_failover_slave_register(struct net_device *slave_dev,  in net_failover_slave_register()  argument
510 	orig_mtu = slave_dev->mtu;  in net_failover_slave_register()
511 	err = dev_set_mtu(slave_dev, failover_dev->mtu);  in net_failover_slave_register()
514 			   slave_dev->name, failover_dev->mtu);  in net_failover_slave_register()
518 	dev_hold(slave_dev);  in net_failover_slave_register()
521 		err = dev_open(slave_dev);  in net_failover_slave_register()
524 				   slave_dev->name, err);  in net_failover_slave_register()
530 	dev_uc_sync_multiple(slave_dev, failover_dev);  in net_failover_slave_register()
531 	dev_mc_sync_multiple(slave_dev, failover_dev);  in net_failover_slave_register()
534 	err = vlan_vids_add_by_dev(slave_dev, failover_dev);  in net_failover_slave_register()
537 			   slave_dev->name, err);  in net_failover_slave_register()
544 	slave_is_standby = slave_dev->dev.parent == failover_dev->dev.parent;  in net_failover_slave_register()
547 		rcu_assign_pointer(nfo_info->standby_dev, slave_dev);  in net_failover_slave_register()
548 		standby_dev = slave_dev;  in net_failover_slave_register()
551 		rcu_assign_pointer(nfo_info->primary_dev, slave_dev);  in net_failover_slave_register()
552 		primary_dev = slave_dev;  in net_failover_slave_register()
554 		failover_dev->min_mtu = slave_dev->min_mtu;  in net_failover_slave_register()
555 		failover_dev->max_mtu = slave_dev->max_mtu;  in net_failover_slave_register()
558 	net_failover_lower_state_changed(slave_dev, primary_dev, standby_dev);  in net_failover_slave_register()
561 	call_netdevice_notifiers(NETDEV_JOIN, slave_dev);  in net_failover_slave_register()
564 		    slave_is_standby ? "standby" : "primary", slave_dev->name);  in net_failover_slave_register()
569 	dev_uc_unsync(slave_dev, failover_dev);  in net_failover_slave_register()
570 	dev_mc_unsync(slave_dev, failover_dev);  in net_failover_slave_register()
571 	dev_close(slave_dev);  in net_failover_slave_register()
573 	dev_put(slave_dev);  in net_failover_slave_register()
574 	dev_set_mtu(slave_dev, orig_mtu);  in net_failover_slave_register()
579 static int net_failover_slave_pre_unregister(struct net_device *slave_dev,  in net_failover_slave_pre_unregister()  argument
589 	if (slave_dev != primary_dev && slave_dev != standby_dev)  in net_failover_slave_pre_unregister()
595 static int net_failover_slave_unregister(struct net_device *slave_dev,  in net_failover_slave_unregister()  argument
606 	vlan_vids_del_by_dev(slave_dev, failover_dev);  in net_failover_slave_unregister()
607 	dev_uc_unsync(slave_dev, failover_dev);  in net_failover_slave_unregister()
608 	dev_mc_unsync(slave_dev, failover_dev);  in net_failover_slave_unregister()
609 	dev_close(slave_dev);  in net_failover_slave_unregister()
614 	slave_is_standby = slave_dev->dev.parent == failover_dev->dev.parent;  in net_failover_slave_unregister()
625 	dev_put(slave_dev);  in net_failover_slave_unregister()
630 		    slave_is_standby ? "standby" : "primary", slave_dev->name);  in net_failover_slave_unregister()
635 static int net_failover_slave_link_change(struct net_device *slave_dev,  in net_failover_slave_link_change()  argument
646 	if (slave_dev != primary_dev && slave_dev != standby_dev)  in net_failover_slave_link_change()
659 	net_failover_lower_state_changed(slave_dev, primary_dev, standby_dev);  in net_failover_slave_link_change()
664 static int net_failover_slave_name_change(struct net_device *slave_dev,  in net_failover_slave_name_change()  argument
675 	if (slave_dev != primary_dev && slave_dev != standby_dev)  in net_failover_slave_name_change()
681 	dev_open(slave_dev);  in net_failover_slave_name_change()
794 	struct net_device *slave_dev;  in net_failover_destroy()  local
806 	slave_dev = rtnl_dereference(nfo_info->primary_dev);  in net_failover_destroy()
807 	if (slave_dev)  in net_failover_destroy()
808 		failover_slave_unregister(slave_dev);  in net_failover_destroy()
810 	slave_dev = rtnl_dereference(nfo_info->standby_dev);  in net_failover_destroy()
811 	if (slave_dev)  in net_failover_destroy()
812 		failover_slave_unregister(slave_dev);  in net_failover_destroy()