alk phase 0. Anyone wanting to add it go ahead.    */   if (dev->type == ARPHRD_ETHER && nr->nr_phase != 0)    return -EPROTONOSUPPORT;    if (sa->sat_addr.s_node == ATADDR_BCAST ||       sa->sat_addr.s_node == 000)    return -EINVAL;    /*    * Check if the chosen address is used. If so we    * error and 