From: Shay Drory <shayd@xxxxxxxxxx>
[ Upstream commit 824c8dc4a470040bf0e56ba716543839c2498d49 ]
mlx5 health mechanism is using devlink APIs, which are using devlink
notify APIs. After the cited patch, using devlink notify APIs after
devlink is unregistered triggers a WARN_ON().
Hence, drain health WQ before devlink is unregistered.
Fixes: cf530217408e ("devlink: Notify users when objects are accessible")
Signed-off-by: Shay Drory <shayd@xxxxxxxxxx>
Reviewed-by: Moshe Shemesh <moshe@xxxxxxxxxx>
Signed-off-by: Saeed Mahameed <saeedm@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/ethernet/mellanox/mlx5/core/main.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index 62327b52f1acf..504179dbff9dd 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -1790,14 +1790,15 @@ static void remove_one(struct pci_dev *pdev)
struct devlink *devlink = priv_to_devlink(dev);
set_bit(MLX5_BREAK_FW_WAIT, &dev->intf_state);
- /* mlx5_drain_fw_reset() is using devlink APIs. Hence, we must drain
- * fw_reset before unregistering the devlink.
+ /* mlx5_drain_fw_reset() and mlx5_drain_health_wq() are using
+ * devlink notify APIs.
+ * Hence, we must drain them before unregistering the devlink.
*/
mlx5_drain_fw_reset(dev);
+ mlx5_drain_health_wq(dev);
devlink_unregister(devlink);
mlx5_sriov_disable(pdev);
mlx5_crdump_disable(dev);
- mlx5_drain_health_wq(dev);
mlx5_uninit_one(dev);
mlx5_pci_close(dev);
mlx5_mdev_uninit(dev);
--
2.39.2
