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

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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



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