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

Finn Thain fthain at telegraphics.com.au
Tue Jun 25 03:42:40 UTC 2019


On Tue, 25 Jun 2019, Ming Lei wrote:

> 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.
> 

Right, sorry for the noise.

-- 

> > 
> > >  
> > >  		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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