> > diff --git a/drivers/infiniband/core/cma.c
> b/drivers/infiniband/core/cma.c
> > index 2a6fc47..9e46b42 100644
> > --- a/drivers/infiniband/core/cma.c
> > +++ b/drivers/infiniband/core/cma.c
> > @@ -684,6 +684,8 @@ static int cma_resolve_ib_dev(struct
> > rdma_id_private *id_priv)
> > for (i = 0; !ib_get_cached_gid(cur_dev->device, p, i,
> > &gid, NULL);
> > i++) {
> > + struct ib_port_attr attr;
> > +
> > if (!memcmp(&gid, dgid, sizeof(gid))) {
> > cma_dev = cur_dev;
> > sgid = gid;
> > @@ -692,7 +694,9 @@ static int cma_resolve_ib_dev(struct
> > rdma_id_private *id_priv)
> > }
> >
> > if (!cma_dev && (gid.global.subnet_prefix ==
> > - dgid->global.subnet_prefix)) {
> > + dgid->global.subnet_prefix) &&
> > + (!ib_query_port(cur_dev->device, p, &attr) &&
> > + attr.state == IB_PORT_ACTIVE)) {
I do have a concern about accessing non-cached port data as part of this call. Can we cache the port state and use that instead?
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