Re: [PATCH V5 10/16] s390: zfcp_fc: use sg helper to operate scatterlist

Ming Lei
2019-06-25T02:30:47Z

On Tue, Jun 25, 2019 at 12:01:24PM +1000, Finn Thain wrote:
> > diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c
> > index dccdb41bed8c..c7129f5234f0 100644
> > --- a/drivers/s390/scsi/zfcp_dbf.c
> > +++ b/drivers/s390/scsi/zfcp_dbf.c
> > @@ -552,7 +552,7 @@ static u16 zfcp_dbf_san_res_cap_len_if_gpn_ft(char *tag,
> > if (x % (ZFCP_FC_GPN_FT_ENT_PAGE + 1))
> > acc++;
> > else
> > - acc = sg_virt(++resp_entry);
> > + acc = sg_virt(resp_entry = sg_next(resp_entry));
>
> Shouldn't that be,
>
> acc = sg_virt(sg_next(resp_entry));

resp_entry needs to be updated.

>
> >
> > last = acc->fp_flags & FC_NS_FID_LAST;
> > }
> > diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c
> > index b018b61bd168..5048812ce660 100644
> > --- a/drivers/s390/scsi/zfcp_fc.c
> > +++ b/drivers/s390/scsi/zfcp_fc.c
> > @@ -742,7 +742,7 @@ static int zfcp_fc_eval_gpn_ft(struct zfcp_fc_req *fc_req,
> > if (x % (ZFCP_FC_GPN_FT_ENT_PAGE + 1))
> > acc++;
> > else
> > - acc = sg_virt(++sg);
> > + acc = sg_virt(sg = sg_next(sg));
>
> and
>
> acc = sg_virt(sg_next(sg));
>
> ?

Same with above.

Thanks,
Ming