__ioat_prep_pq_lock
__ioat_prep_pq_lock(chan, NULL, dst, single_source, 2,
__ioat_prep_pq_lock(chan, NULL, dst, src, src_cnt,
__ioat_prep_pq_lock(chan, pqres, pq, src, src_cnt, scf, len,
__ioat_prep_pq_lock(chan, NULL, pq, src, src_cnt, scf, len,
__ioat_prep_pq_lock(chan, result, pq, &src[1], src_cnt - 1,