addrconf_ifid_eui48
addrconf_ifid_eui48(&gid->raw[8], dev);
addrconf_ifid_eui48(&rdev->ugid.raw[8], rdev->netdev);
addrconf_ifid_eui48((u8 *)&attr->sys_image_guid, ndev);
addrconf_ifid_eui48((u8 *)&ibdev->node_guid, ndev);
return addrconf_ifid_eui48(eui, dev);