3160 	struct net_device *lowerdev = __dev_get_by_index(vxlan->net,  in vxlan_change_mtu()  local
3167 	if (lowerdev) {  in vxlan_change_mtu()
3168 		int max_mtu = lowerdev->mtu -  in vxlan_change_mtu()
3453 	struct net_device *lowerdev = __dev_get_by_index(vxlan->net,  in vxlan_get_link_ksettings()  local
3456 	if (!lowerdev) {  in vxlan_get_link_ksettings()
3464 	return __ethtool_get_link_ksettings(lowerdev, cmd);  in vxlan_get_link_ksettings()
3707 		struct net_device *lowerdev;  in vxlan_config_validate()  local
3709 		lowerdev = __dev_get_by_index(src_net, conf->remote_ifindex);  in vxlan_config_validate()
3710 		if (!lowerdev) {  in vxlan_config_validate()
3718 			struct inet6_dev *idev = __in6_dev_get(lowerdev);  in vxlan_config_validate()
3728 		*lower = lowerdev;  in vxlan_config_validate()
3784 			       struct net_device *lowerdev,  in vxlan_config_apply()  argument
3810 	if (lowerdev) {  in vxlan_config_apply()
3813 		dev->gso_max_size = lowerdev->gso_max_size;  in vxlan_config_apply()
3814 		dev->gso_max_segs = lowerdev->gso_max_segs;  in vxlan_config_apply()
3816 		needed_headroom = lowerdev->hard_header_len;  in vxlan_config_apply()
3817 		needed_headroom += lowerdev->needed_headroom;  in vxlan_config_apply()
3819 		dev->needed_tailroom = lowerdev->needed_tailroom;  in vxlan_config_apply()
3821 		max_mtu = lowerdev->mtu - (use_ipv6 ? VXLAN6_HEADROOM :  in vxlan_config_apply()
3847 	struct net_device *lowerdev;  in vxlan_dev_configure()  local
3850 	ret = vxlan_config_validate(src_net, conf, &lowerdev, vxlan, extack);  in vxlan_dev_configure()
3854 	vxlan_config_apply(dev, conf, lowerdev, src_net, changelink);  in vxlan_dev_configure()
4251 	struct net_device *lowerdev;  in vxlan_changelink()  local
4261 	err = vxlan_config_validate(vxlan->net, &conf, &lowerdev,  in vxlan_changelink()
4266 	if (dst->remote_dev == lowerdev)  in vxlan_changelink()
4267 		lowerdev = NULL;  in vxlan_changelink()
4269 	err = netdev_adjacent_change_prepare(dst->remote_dev, lowerdev, dev,  in vxlan_changelink()
4291 							     lowerdev, dev);  in vxlan_changelink()
4309 	netdev_adjacent_change_commit(dst->remote_dev, lowerdev, dev);  in vxlan_changelink()
4310 	if (lowerdev && lowerdev != dst->remote_dev)  in vxlan_changelink()
4311 		dst->remote_dev = lowerdev;  in vxlan_changelink()
4312 	vxlan_config_apply(dev, &conf, lowerdev, vxlan->net, true);  in vxlan_changelink()