> +/*
> > + * This function will parse recommended active subregion information in
> > sense
> > + * data field of response UPIU with SAM_STAT_GOOD state.
> > + */
> > +void ufshpb_rsp_upiu(struct ufs_hba *hba, struct ufshcd_lrb *lrbp)
> > +{
> > + struct ufshpb_lu *hpb;
> > + struct scsi_device *sdev;
> > + struct utp_hpb_rsp *rsp_field = &lrbp->ucd_rsp_ptr->hr;
> > + int data_seg_len;
> > + bool found = false;
> > +
> > + __shost_for_each_device(sdev, hba->host) {
> > + hpb = ufshpb_get_hpb_data(sdev);
> > +
> > + if (!hpb)
> > + continue;
> > +
> > + if (rsp_field->lun == hpb->lun) {
> > + found = true;
> > + break;
> This piece of code looks awkward, although it is probably working.
> Why not just having a reference to the hpb luns, e.g. something like:
> struct ufshpb_lu *hpb_luns[8] in struct ufs_hba.
> Less elegant - but much more effective than iterating the scsi host on every completion interrupt.
How about checking (cmd->lun == rsp->lun) before the iteration?
Major case will be have same lun. And, it is hard to add struct ufshpb_lu *hpb_luns[128]
in struct ufs_hba, because LUN can be upto 127.
Thanks,
Daejun
