73 	struct net_device *slave_dev;  in net_failover_close()  local
77 	slave_dev = rtnl_dereference(nfo_info->primary_dev);  in net_failover_close()
78 	if (slave_dev)  in net_failover_close()
79 		dev_close(slave_dev);  in net_failover_close()
81 	slave_dev = rtnl_dereference(nfo_info->standby_dev);  in net_failover_close()
82 	if (slave_dev)  in net_failover_close()
83 		dev_close(slave_dev);  in net_failover_close()
187 	struct net_device *slave_dev;  in net_failover_get_stats()  local
194 	slave_dev = rcu_dereference(nfo_info->primary_dev);  in net_failover_get_stats()
195 	if (slave_dev) {  in net_failover_get_stats()
196 		new = dev_get_stats(slave_dev, &temp);  in net_failover_get_stats()
201 	slave_dev = rcu_dereference(nfo_info->standby_dev);  in net_failover_get_stats()
202 	if (slave_dev) {  in net_failover_get_stats()
203 		new = dev_get_stats(slave_dev, &temp);  in net_failover_get_stats()
245 	struct net_device *slave_dev;  in net_failover_set_rx_mode()  local
249 	slave_dev = rcu_dereference(nfo_info->primary_dev);  in net_failover_set_rx_mode()
250 	if (slave_dev) {  in net_failover_set_rx_mode()
251 		dev_uc_sync_multiple(slave_dev, dev);  in net_failover_set_rx_mode()
252 		dev_mc_sync_multiple(slave_dev, dev);  in net_failover_set_rx_mode()
255 	slave_dev = rcu_dereference(nfo_info->standby_dev);  in net_failover_set_rx_mode()
256 	if (slave_dev) {  in net_failover_set_rx_mode()
257 		dev_uc_sync_multiple(slave_dev, dev);  in net_failover_set_rx_mode()
258 		dev_mc_sync_multiple(slave_dev, dev);  in net_failover_set_rx_mode()
293 	struct net_device *slave_dev;  in net_failover_vlan_rx_kill_vid()  local
295 	slave_dev = rcu_dereference(nfo_info->primary_dev);  in net_failover_vlan_rx_kill_vid()
296 	if (slave_dev)  in net_failover_vlan_rx_kill_vid()
297 		vlan_vid_del(slave_dev, proto, vid);  in net_failover_vlan_rx_kill_vid()
299 	slave_dev = rcu_dereference(nfo_info->standby_dev);  in net_failover_vlan_rx_kill_vid()
300 	if (slave_dev)  in net_failover_vlan_rx_kill_vid()
301 		vlan_vid_del(slave_dev, proto, vid);  in net_failover_vlan_rx_kill_vid()
334 	struct net_device *slave_dev;  in nfo_ethtool_get_link_ksettings()  local
336 	slave_dev = rtnl_dereference(nfo_info->primary_dev);  in nfo_ethtool_get_link_ksettings()
337 	if (!slave_dev || !net_failover_xmit_ready(slave_dev)) {  in nfo_ethtool_get_link_ksettings()
338 		slave_dev = rtnl_dereference(nfo_info->standby_dev);  in nfo_ethtool_get_link_ksettings()
339 		if (!slave_dev || !net_failover_xmit_ready(slave_dev)) {  in nfo_ethtool_get_link_ksettings()
348 	return __ethtool_get_link_ksettings(slave_dev, cmd);  in nfo_ethtool_get_link_ksettings()
434 static void net_failover_lower_state_changed(struct net_device *slave_dev,  in net_failover_lower_state_changed()  argument
440 	if (netif_carrier_ok(slave_dev))  in net_failover_lower_state_changed()
445 	if (slave_dev == primary_dev) {  in net_failover_lower_state_changed()
458 	netdev_lower_state_changed(slave_dev, &info);  in net_failover_lower_state_changed()
461 static int net_failover_slave_pre_register(struct net_device *slave_dev,  in net_failover_slave_pre_register()  argument
471 	slave_is_standby = slave_dev->dev.parent == failover_dev->dev.parent;  in net_failover_slave_pre_register()
474 			   slave_dev->name,  in net_failover_slave_pre_register()
483 	if (!slave_is_standby && (!slave_dev->dev.parent ||  in net_failover_slave_pre_register()
484 				  !dev_is_pci(slave_dev->dev.parent)))  in net_failover_slave_pre_register()
497 static int net_failover_slave_register(struct net_device *slave_dev,  in net_failover_slave_register()  argument
507 	orig_mtu = slave_dev->mtu;  in net_failover_slave_register()
508 	err = dev_set_mtu(slave_dev, failover_dev->mtu);  in net_failover_slave_register()
511 			   slave_dev->name, failover_dev->mtu);  in net_failover_slave_register()
515 	dev_hold(slave_dev);  in net_failover_slave_register()
518 		err = dev_open(slave_dev, NULL);  in net_failover_slave_register()
521 				   slave_dev->name, err);  in net_failover_slave_register()
527 	dev_uc_sync_multiple(slave_dev, failover_dev);  in net_failover_slave_register()
528 	dev_mc_sync_multiple(slave_dev, failover_dev);  in net_failover_slave_register()
531 	err = vlan_vids_add_by_dev(slave_dev, failover_dev);  in net_failover_slave_register()
534 			   slave_dev->name, err);  in net_failover_slave_register()
541 	slave_is_standby = slave_dev->dev.parent == failover_dev->dev.parent;  in net_failover_slave_register()
544 		rcu_assign_pointer(nfo_info->standby_dev, slave_dev);  in net_failover_slave_register()
545 		standby_dev = slave_dev;  in net_failover_slave_register()
548 		rcu_assign_pointer(nfo_info->primary_dev, slave_dev);  in net_failover_slave_register()
549 		primary_dev = slave_dev;  in net_failover_slave_register()
551 		failover_dev->min_mtu = slave_dev->min_mtu;  in net_failover_slave_register()
552 		failover_dev->max_mtu = slave_dev->max_mtu;  in net_failover_slave_register()
555 	net_failover_lower_state_changed(slave_dev, primary_dev, standby_dev);  in net_failover_slave_register()
558 	call_netdevice_notifiers(NETDEV_JOIN, slave_dev);  in net_failover_slave_register()
561 		    slave_is_standby ? "standby" : "primary", slave_dev->name);  in net_failover_slave_register()
566 	dev_uc_unsync(slave_dev, failover_dev);  in net_failover_slave_register()
567 	dev_mc_unsync(slave_dev, failover_dev);  in net_failover_slave_register()
568 	dev_close(slave_dev);  in net_failover_slave_register()
570 	dev_put(slave_dev);  in net_failover_slave_register()
571 	dev_set_mtu(slave_dev, orig_mtu);  in net_failover_slave_register()
576 static int net_failover_slave_pre_unregister(struct net_device *slave_dev,  in net_failover_slave_pre_unregister()  argument
586 	if (slave_dev != primary_dev && slave_dev != standby_dev)  in net_failover_slave_pre_unregister()
592 static int net_failover_slave_unregister(struct net_device *slave_dev,  in net_failover_slave_unregister()  argument
603 	if (WARN_ON_ONCE(slave_dev != primary_dev && slave_dev != standby_dev))  in net_failover_slave_unregister()
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, NULL);  in net_failover_slave_name_change()
796 	struct net_device *slave_dev;  in net_failover_destroy()  local
808 	slave_dev = rtnl_dereference(nfo_info->primary_dev);  in net_failover_destroy()
809 	if (slave_dev)  in net_failover_destroy()
810 		failover_slave_unregister(slave_dev);  in net_failover_destroy()
812 	slave_dev = rtnl_dereference(nfo_info->standby_dev);  in net_failover_destroy()
813 	if (slave_dev)  in net_failover_destroy()
814 		failover_slave_unregister(slave_dev);  in net_failover_destroy()