On Sun, 2017-08-27 at 14:10 +0300, Leon Romanovsky wrote:
> On Thu, Aug 24, 2017 at 04:40:42PM -0400, Doug Ledford wrote:
> > On Thu, 2017-08-17 at 15:50 +0300, Leon Romanovsky wrote:
> > > From: Parav Pandit <parav@xxxxxxxxxxxx>
> > >
> > > This patch introduces two helper functions to copy ah attributes
> > > from uverbs to internal ib_ah_attr structure and the other way
> > > during modify qp and query qp respectively.
> > >
> > > Signed-off-by: Parav Pandit <parav@xxxxxxxxxxxx>
> > > Reviewed-by: Daniel Jurgens <danielj@xxxxxxxxxxxx>
> > > Signed-off-by: Leon Romanovsky <leon@xxxxxxxxxx>
> > > Reviewed-by: Dennis Dalessandro <dennis.dalessandro@xxxxxxxxx>
> > > ---
> > > drivers/infiniband/core/uverbs_cmd.c | 124 ++++++++++++++-------
> > > ----
> > > ----------
> > > 1 file changed, 49 insertions(+), 75 deletions(-)
> >
> > I had to fix this patch up considerably...
> >
> > > diff --git a/drivers/infiniband/core/uverbs_cmd.c
> > > b/drivers/infiniband/core/uverbs_cmd.c
> > > index 670176b670a0..515425a50059 100644
> > > --- a/drivers/infiniband/core/uverbs_cmd.c
> > > +++ b/drivers/infiniband/core/uverbs_cmd.c
> > >
> > > @@ -1936,6 +1926,28 @@ static int modify_qp_mask(enum ib_qp_type
> > > qp_type, int mask)
> > > }
> > > }
> > >
> > > +static void copy_ah_attr_from_uverbs(struct ib_device *dev,
^^^^^^^^^^^^^^^^^^^^
>From your patch...
> > > + struct rdma_ah_attr
> > > *rdma_attr,
> > > + struct ib_uverbs_qp_dest
> > >
> > And we had a fix here where we only copy the ah attributes if the
> > user
> > set the flag for it, so what I ended up with looks like this:
> >
> > if (cmd->base.attr_mask & IB_QP_AV)
> > copy_ah_attr_from_uverbs(qp->device, &attr-
> > >ah_attr,
> > &cmd->base.dest);
> >
> > if (cmd->base.attr_mask & IB_QP_ALT_PATH)
> > copy_ah_attr_from_uverbs(qp->device, &attr-
> > > alt_ah_attr,
> >
> > &cmd->base.alt_dest);
>
> Doug,
>
> It should be "qp" and not "qp->device" in copy_ah_attr_from_uverbs().
>
> 1998 if (cmd->base.attr_mask & IB_QP_AV)
> 1999 copy_ah_attr_from_uverbs(qp, &attr->ah_attr,
> &cmd->base.dest);
> 2000 if (cmd->base.attr_mask & IB_QP_ALT_PATH)
> 2001 copy_ah_attr_from_uverbs(qp, &attr->alt_ah_attr,
> 2002 &cmd->base.alt_dest);
> 2003 ret = ib_modify_qp_with_udata(qp, attr,
> 2004 modify_qp_mask(qp-
> >qp_type,
> 2005 cmd-
> >base.attr_mask),
> 2006 udata);
I'm pretty sure you need to re-read your own patch Leon ;-). The
helper you added uses struct ib_device, so a pointer to the qp would
not work. And it wouldn't have even compiled if I had that wrong.
--
Doug Ledford <dledford@xxxxxxxxxx>
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