DL_NOTIFY_ACK_SIZE
{ DL_NOTIFY_ACK, MAX(DL_ERROR_ACK_SIZE, DL_NOTIFY_ACK_SIZE) },
retval = i_dlpi_msg_common(dip, &req, &ack, DL_NOTIFY_ACK_SIZE, 0);
softmac_process_dlpi(slp, mp, DL_NOTIFY_ACK_SIZE,
err = dl_op(lh, &mp, DL_NOTIFY_ACK, DL_NOTIFY_ACK_SIZE, dleap, NULL);