RE: iwarp kernel mode applications are broken with commit f35faa4ba

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> Hi Shiraz,
> 
> > -----Original Message-----
> > From: Saleem, Shiraz [mailto:shiraz.saleem@xxxxxxxxx]
> > Sent: Friday, April 27, 2018 1:26 PM
> > To: Parav Pandit <parav@xxxxxxxxxxxx>; Raju Rangoju
> <rajur@xxxxxxxxxxx>
> > Cc: linux-rdma@xxxxxxxxxxxxxxx; SWise OGC
> <swise@xxxxxxxxxxxxxxxxxxxxx>;
> > Hefty, Sean <sean.hefty@xxxxxxxxx>
> > Subject: RE: iwarp kernel mode applications are broken with commit
> f35faa4ba
> >
> > >Subject: RE: iwarp kernel mode applications are broken with commit
> > >f35faa4ba
> > >
> > >>
> > >> > diff --git a/drivers/infiniband/core/cma.c
> > >> > b/drivers/infiniband/core/cma.c index 8512f63..e119cff 100644
> > >> > --- a/drivers/infiniband/core/cma.c
> > >> > +++ b/drivers/infiniband/core/cma.c
> > >> > @@ -863,7 +863,7 @@ void rdma_destroy_qp(struct rdma_cm_id *id)
> > >> > static int cma_modify_qp_rtr(struct rdma_id_private *id_priv,
> > >> >                              struct rdma_conn_param *conn_param)  {
> > >> > -       struct ib_qp_attr qp_attr;
> > >> > +       struct ib_qp_attr qp_attr = {};
> > >> >         int qp_attr_mask, ret;
> > >> >         union ib_gid sgid;
> > >> >
> > >--
> >
> > Hi Parav - The patch resolves the issue.
> > But shouldn't we remove ib_query_gid() from cma_modify_qp_rtr()
> altogether?
> > What is its purpose in that function?
> I agree it is not needed. I looked at the commit dd5f03beb4f7 from Matan
> where sgid was used for smac address.
> But now the code has improved a lot over it and this query_gid should have
> been removed when smac thing was refactored, but it was not.
> For this rc cycle I think we just keep it and only make qp_attr {} which
is
> anyway good thing to do, just trying to avoid too many changes in rc now.
> But I am fine either ways.

Let's just initialize qp_attr for this -rc.  Please post a patch for Doug to
merge.  And tag it for -stable if that is needed.

Thanks,

Steve.

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