3159 	struct net_device *lowerdev = __dev_get_by_index(vxlan->net,  in vxlan_change_mtu()  local
3166 	if (lowerdev) {  in vxlan_change_mtu()
3167 		int max_mtu = lowerdev->mtu -  in vxlan_change_mtu()
3451 	struct net_device *lowerdev = __dev_get_by_index(vxlan->net,  in vxlan_get_link_ksettings()  local
3454 	if (!lowerdev) {  in vxlan_get_link_ksettings()
3462 	return __ethtool_get_link_ksettings(lowerdev, cmd);  in vxlan_get_link_ksettings()
3704 		struct net_device *lowerdev;  in vxlan_config_validate()  local
3706 		lowerdev = __dev_get_by_index(src_net, conf->remote_ifindex);  in vxlan_config_validate()
3707 		if (!lowerdev) {  in vxlan_config_validate()
3715 			struct inet6_dev *idev = __in6_dev_get(lowerdev);  in vxlan_config_validate()
3724 		*lower = lowerdev;  in vxlan_config_validate()
3780 			       struct net_device *lowerdev,  in vxlan_config_apply()  argument
3806 	if (lowerdev) {  in vxlan_config_apply()
3809 		dev->gso_max_size = lowerdev->gso_max_size;  in vxlan_config_apply()
3810 		dev->gso_max_segs = lowerdev->gso_max_segs;  in vxlan_config_apply()
3812 		needed_headroom = lowerdev->hard_header_len;  in vxlan_config_apply()
3813 		needed_headroom += lowerdev->needed_headroom;  in vxlan_config_apply()
3815 		dev->needed_tailroom = lowerdev->needed_tailroom;  in vxlan_config_apply()
3817 		max_mtu = lowerdev->mtu - (use_ipv6 ? VXLAN6_HEADROOM :  in vxlan_config_apply()
3843 	struct net_device *lowerdev;  in vxlan_dev_configure()  local
3846 	ret = vxlan_config_validate(src_net, conf, &lowerdev, vxlan, extack);  in vxlan_dev_configure()
3850 	vxlan_config_apply(dev, conf, lowerdev, src_net, changelink);  in vxlan_dev_configure()
4247 	struct net_device *lowerdev;  in vxlan_changelink()  local
4257 	err = vxlan_config_validate(vxlan->net, &conf, &lowerdev,  in vxlan_changelink()
4262 	if (dst->remote_dev == lowerdev)  in vxlan_changelink()
4263 		lowerdev = NULL;  in vxlan_changelink()
4265 	err = netdev_adjacent_change_prepare(dst->remote_dev, lowerdev, dev,  in vxlan_changelink()
4287 							     lowerdev, dev);  in vxlan_changelink()
4305 	netdev_adjacent_change_commit(dst->remote_dev, lowerdev, dev);  in vxlan_changelink()
4306 	if (lowerdev && lowerdev != dst->remote_dev)  in vxlan_changelink()
4307 		dst->remote_dev = lowerdev;  in vxlan_changelink()
4308 	vxlan_config_apply(dev, &conf, lowerdev, vxlan->net, true);  in vxlan_changelink()