This is a note to let you know that I've just added the patch titled IB/mlx4: Follow mirror sequence of device add during device removal to the 4.19-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: ib-mlx4-follow-mirror-sequence-of-device-add-during-.patch and it can be found in the queue-4.19 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 9c4f22df730830afdbf0795132a83040ceb8c9c5 Author: Parav Pandit <parav@xxxxxxxxxxxx> Date: Thu Dec 12 11:12:13 2019 +0200 IB/mlx4: Follow mirror sequence of device add during device removal [ Upstream commit 89f988d93c62384758b19323c886db917a80c371 ] 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@xxxxxxxxxxxx> Reviewed-by: Maor Gottlieb <maorg@xxxxxxxxxxxx> Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxxxx> Link: https://lore.kernel.org/r/20191212091214.315005-3-leon@xxxxxxxxxx Signed-off-by: Doug Ledford <dledford@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index 0bbeaaae47e0..9386bb57b3d7 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -3069,16 +3069,17 @@ 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);