Re: [PATCH rdma-next v8 3/4] RDMA/bnxt_re: Direct Verbs: Support DBR verbs

[Jason Gunthorpe <jgg@ziepe.ca>]

On Wed, Jan 21, 2026 at 07:32:36AM +0530, Sriharsha Basavapatna wrote:
> > For instance CQ did it in the above function:
> >
> > static int uverbs_free_cq(struct ib_uobject *uobject,
> >                           enum rdma_remove_reason why,
> >                           struct uverbs_attr_bundle *attrs)
> > {
> >         ret = ib_destroy_cq_user(cq, &attrs->driver_udata);
> >         if (ret)
> >                 return ret;
> >
> > int ib_destroy_cq_user(struct ib_cq *cq, struct ib_udata *udata)
> > {
> >         if (atomic_read(&cq->usecnt))
> >                 return -EBUSY;
> >
> > So this patch should be doing the usecnt check as well, otherwise it
> > won't work right.
> The consumer of dbr, which is qp, is in the next patch. So the actual
> usecnt logic (incr/decr) is in the next patch.

I saw that, but nothing in the next patch *reads* it. This is the
point it should be read.

Jason