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From: Leon Romanovsky <leon@kernel.org>
To: Doug Ledford <dledford@redhat.com>, Jason Gunthorpe <jgg@mellanox.com>
Cc: Leon Romanovsky <leonro@mellanox.com>,
	RDMA mailing list <linux-rdma@vger.kernel.org>,
	Eli Cohen <eli@mellanox.co.il>, Ido Kalir <idok@mellanox.com>,
	Maor Gottlieb <maorg@mellanox.com>,
	Mark Zhang <markz@mellanox.com>,
	Parav Pandit <parav@mellanox.com>,
	Raed Salem <raeds@mellanox.com>
Subject: [PATCH rdma-rc 2/3] IB/mlx4: Follow mirror sequence of device add during device removal
Date: Thu, 12 Dec 2019 11:12:13 +0200
Message-ID: <20191212091214.315005-3-leon@kernel.org> (raw)
In-Reply-To: <20191212091214.315005-1-leon@kernel.org>

From: Parav Pandit <parav@mellanox.com>

Current code device add sequence is:

ib_register_device()
ib_mad_init()
init_sriov_init()
register_netdev_notifier()

Therefore, the remove sequence should be,

unregister_netdev_notifier()
close_sriov()
mad_cleanup()
ib_unregister_device()

However it is not above.
Hence, make do above remove sequence.

Fixes: fa417f7b520ee ("IB/mlx4: Add support for IBoE")
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
---
 drivers/infiniband/hw/mlx4/main.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index 0b5dc1d5928f..34055cbab38c 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -3018,16 +3018,17 @@ static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr)
 	ibdev->ib_active = false;
 	flush_workqueue(wq);
 
-	mlx4_ib_close_sriov(ibdev);
-	mlx4_ib_mad_cleanup(ibdev);
-	ib_unregister_device(&ibdev->ib_dev);
-	mlx4_ib_diag_cleanup(ibdev);
 	if (ibdev->iboe.nb.notifier_call) {
 		if (unregister_netdevice_notifier(&ibdev->iboe.nb))
 			pr_warn("failure unregistering notifier\n");
 		ibdev->iboe.nb.notifier_call = NULL;
 	}
 
+	mlx4_ib_close_sriov(ibdev);
+	mlx4_ib_mad_cleanup(ibdev);
+	ib_unregister_device(&ibdev->ib_dev);
+	mlx4_ib_diag_cleanup(ibdev);
+
 	mlx4_qp_release_range(dev, ibdev->steer_qpn_base,
 			      ibdev->steer_qpn_count);
 	kfree(ibdev->ib_uc_qpns_bitmap);
-- 
2.20.1


  parent reply index

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-12  9:12 [PATCH rdma-rc 0/3] Fixes for 5.5 Leon Romanovsky
2019-12-12  9:12 ` [PATCH rdma-rc 1/3] RDMA/counter: Prevent auto-binding a QP which are not tracked with res Leon Romanovsky
2019-12-12  9:12 ` Leon Romanovsky [this message]
2019-12-12  9:12 ` [PATCH rdma-rc 3/3] IB/mlx5: Fix steering rule of drop and count Leon Romanovsky
2019-12-12 20:40 ` [PATCH rdma-rc 0/3] Fixes for 5.5 Doug Ledford

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