From mboxrd@z Thu Jan 1 00:00:00 1970 From: Leon Romanovsky Subject: Re: [PATCH rdma-next 01/15] rds: Don't check return value from destroy CQ Date: Mon, 20 May 2019 21:31:12 +0300 Message-ID: <20190520183112.GT4573@mtr-leonro.mtl.com> References: <20190520065433.8734-1-leon@kernel.org> <20190520065433.8734-2-leon@kernel.org> <9db089b4-d088-9b2a-c6ce-350e11fb5460@oracle.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <9db089b4-d088-9b2a-c6ce-350e11fb5460@oracle.com> Sender: netdev-owner@vger.kernel.org To: Santosh Shilimkar Cc: Doug Ledford , Jason Gunthorpe , RDMA mailing list , Glenn Streiff , Steve Wise , "David S. Miller" , netdev@vger.kernel.org List-Id: linux-rdma@vger.kernel.org On Mon, May 20, 2019 at 10:17:43AM -0700, Santosh Shilimkar wrote: > On 5/19/2019 11:54 PM, Leon Romanovsky wrote: > > From: Leon Romanovsky > > > > There is no value in checking ib_destroy_cq() result and skipping > > to clear struct ic fields. This connection needs to be reinitialized > > anyway. > > > > Signed-off-by: Leon Romanovsky > > --- > > net/rds/ib_cm.c | 8 ++++---- > > 1 file changed, 4 insertions(+), 4 deletions(-) > > > > diff --git a/net/rds/ib_cm.c b/net/rds/ib_cm.c > > index 66c6eb56072b..5a42ebb892cd 100644 > > --- a/net/rds/ib_cm.c > > +++ b/net/rds/ib_cm.c > > @@ -611,11 +611,11 @@ static int rds_ib_setup_qp(struct rds_connection *conn) > > qp_out: > > rdma_destroy_qp(ic->i_cm_id); > > recv_cq_out: > > - if (!ib_destroy_cq(ic->i_recv_cq)) > > - ic->i_recv_cq = NULL; > > + ib_destroy_cq(ic->i_recv_cq); > > + ic->i_recv_cq = NULL; > > send_cq_out: > > - if (!ib_destroy_cq(ic->i_send_cq)) > > - ic->i_send_cq = NULL; > > + ib_destroy_cq(ic->i_send_cq); > > + ic->i_send_cq = NULL; > This was done to ensure, you still don't get ISR delivering > the CQEs while we are in shutdown path. Your patch > is fine though since you don't change that behavior. > > Acked-by: Santosh Shilimkar Thanks > >