2890 	struct net_device *lowerdev = __dev_get_by_index(vxlan->net,  in vxlan_change_mtu()  local
2897 	if (lowerdev) {  in vxlan_change_mtu()
2898 		int max_mtu = lowerdev->mtu -  in vxlan_change_mtu()
3417 		struct net_device *lowerdev;  in vxlan_config_validate()  local
3419 		lowerdev = __dev_get_by_index(src_net, conf->remote_ifindex);  in vxlan_config_validate()
3420 		if (!lowerdev) {  in vxlan_config_validate()
3428 			struct inet6_dev *idev = __in6_dev_get(lowerdev);  in vxlan_config_validate()
3437 		*lower = lowerdev;  in vxlan_config_validate()
3493 			       struct net_device *lowerdev,  in vxlan_config_apply()  argument
3519 	if (lowerdev) {  in vxlan_config_apply()
3522 		dev->gso_max_size = lowerdev->gso_max_size;  in vxlan_config_apply()
3523 		dev->gso_max_segs = lowerdev->gso_max_segs;  in vxlan_config_apply()
3525 		needed_headroom = lowerdev->hard_header_len;  in vxlan_config_apply()
3527 		max_mtu = lowerdev->mtu - (use_ipv6 ? VXLAN6_HEADROOM :  in vxlan_config_apply()
3553 	struct net_device *lowerdev;  in vxlan_dev_configure()  local
3556 	ret = vxlan_config_validate(src_net, conf, &lowerdev, vxlan, extack);  in vxlan_dev_configure()
3560 	vxlan_config_apply(dev, conf, lowerdev, src_net, changelink);  in vxlan_dev_configure()
3955 	struct net_device *lowerdev;  in vxlan_changelink()  local
3965 	err = vxlan_config_validate(vxlan->net, &conf, &lowerdev,  in vxlan_changelink()
3970 	if (dst->remote_dev == lowerdev)  in vxlan_changelink()
3971 		lowerdev = NULL;  in vxlan_changelink()
3973 	err = netdev_adjacent_change_prepare(dst->remote_dev, lowerdev, dev,  in vxlan_changelink()
3995 							     lowerdev, dev);  in vxlan_changelink()
4013 	netdev_adjacent_change_commit(dst->remote_dev, lowerdev, dev);  in vxlan_changelink()
4014 	if (lowerdev && lowerdev != dst->remote_dev) {  in vxlan_changelink()
4015 		dst->remote_dev = lowerdev;  in vxlan_changelink()
4016 		netdev_update_lockdep_key(lowerdev);  in vxlan_changelink()
4018 	vxlan_config_apply(dev, &conf, lowerdev, vxlan->net, true);  in vxlan_changelink()