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qla2x00t: q2t_pci_map_calc_cnt() cleanup and microoptimization (merge r4273 from trunk)

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git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/2.2.x@4631 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Bart Van Assche
2012-11-28 14:00:16 +00:00
parent 2e53594570
commit e0e724f022
1 changed files with 3 additions and 8 deletions
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11
qla2x00t/qla2x00-target/qla2x00t.c
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@@ -2038,14 +2038,9 @@ static int q2t_pci_map_calc_cnt(struct q2t_prm *prm)
* If greater than four sg entries then we need to allocate
* the continuation entries
*/
if (prm->seg_cnt > prm->tgt->datasegs_per_cmd) {
prm->req_cnt += (uint16_t)(prm->seg_cnt -
prm->tgt->datasegs_per_cmd) /
prm->tgt->datasegs_per_cont;
if (((uint16_t)(prm->seg_cnt - prm->tgt->datasegs_per_cmd)) %
prm->tgt->datasegs_per_cont)
prm->req_cnt++;
}
if (prm->seg_cnt > prm->tgt->datasegs_per_cmd)
prm->req_cnt += DIV_ROUND_UP(prm->seg_cnt - prm->tgt->datasegs_per_cmd,
prm->tgt->datasegs_per_cont);
out:
TRACE_DBG("seg_cnt=%d, req_cnt=%d, res=%d", prm->seg_cnt,