netdev - [PATCH net] net/mlx5: Remove all auxiliary devices at the unregister event

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Message-Id: <10641ab4c3de708f61a968158cac7620cef27067.1629547326.git.leonro@nvidia.com>
Date:   Sat, 21 Aug 2021 15:05:11 +0300
From:   Leon Romanovsky <leon@...nel.org>
To:     Jakub Kicinski <kuba@...nel.org>,
        Saeed Mahameed <saeedm@...dia.com>,
        "David S . Miller" <davem@...emloft.net>
Cc:     Leon Romanovsky <leonro@...dia.com>,
        Dmytro Linkin <dlinkin@...dia.com>, netdev@...r.kernel.org,
        Roi Dayan <roid@...dia.com>,
        Yicong Yang <yangyicong@...ilicon.com>
Subject: [PATCH net] net/mlx5: Remove all auxiliary devices at the unregister event

From: Leon Romanovsky <leonro@...dia.com>

The call to mlx5_unregister_device() means that mlx5_core driver is
removed. In such scenario, we need to disregard all other flags like
attach/detach and forcibly remove all auxiliary devices.

Fixes: a5ae8fc9058e ("net/mlx5e: Don't create devices during unload flow")
Tested-and-Reported-by: Yicong Yang <yangyicong@...ilicon.com>
Signed-off-by: Leon Romanovsky <leonro@...dia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/dev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/dev.c b/drivers/net/ethernet/mellanox/mlx5/core/dev.c
index ff6b03dc7e32..e8093c4e09d4 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/dev.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/dev.c
@@ -450,7 +450,7 @@ int mlx5_register_device(struct mlx5_core_dev *dev)
 void mlx5_unregister_device(struct mlx5_core_dev *dev)
 {
 	mutex_lock(&mlx5_intf_mutex);
-	dev->priv.flags |= MLX5_PRIV_FLAGS_DISABLE_ALL_ADEV;
+	dev->priv.flags = MLX5_PRIV_FLAGS_DISABLE_ALL_ADEV;
 	mlx5_rescan_drivers_locked(dev);
 	mutex_unlock(&mlx5_intf_mutex);
 }
-- 
2.31.1