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Message-ID: <20231023182332.GL691768@ziepe.ca> Date: Mon, 23 Oct 2023 15:23:32 -0300 From: Jason Gunthorpe <jgg@...pe.ca> To: sharmaajay@...uxonhyperv.com Cc: Long Li <longli@...rosoft.com>, Leon Romanovsky <leon@...nel.org>, Dexuan Cui <decui@...rosoft.com>, Wei Liu <wei.liu@...nel.org>, "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, linux-rdma@...r.kernel.org, linux-hyperv@...r.kernel.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, Ajay Sharma <sharmaajay@...rosoft.com> Subject: Re: [Patch v7 5/5] RDMA/mana_ib: Send event to qp On Mon, Oct 16, 2023 at 03:12:02PM -0700, sharmaajay@...uxonhyperv.com wrote: > diff --git a/drivers/infiniband/hw/mana/qp.c b/drivers/infiniband/hw/mana/qp.c > index ef3275ac92a0..19fae28985c3 100644 > --- a/drivers/infiniband/hw/mana/qp.c > +++ b/drivers/infiniband/hw/mana/qp.c > @@ -210,6 +210,8 @@ static int mana_ib_create_qp_rss(struct ib_qp *ibqp, struct ib_pd *pd, > wq->id = wq_spec.queue_index; > cq->id = cq_spec.queue_index; > > + xa_store(&mib_dev->rq_to_qp_lookup_table, wq->id, qp, GFP_KERNEL); > + A store with no erase? A load with no locking? This can't be right Jason
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