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authorAlaa Hleihel <alaa@mellanox.com>2019-05-26 11:56:27 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-06-22 09:09:07 +0300
commit6a8c94e6bdd026d57885f899333c04b01778535e (patch)
treef7758da8bda64117f063c2e61e214a3d1403a150 /drivers/net/ethernet/mellanox/mlx5/core/en_main.c
parent0ab34cf296c3c7d326e57a38f61a5a86686bdda1 (diff)
downloadlinux-6a8c94e6bdd026d57885f899333c04b01778535e.tar.xz
net/mlx5e: Avoid detaching non-existing netdev under switchdev mode
After introducing dedicated uplink representor, the netdev instance set over the esw manager vport (PF) became no longer in use, so it was removed in the cited commit once we're on switchdev mode. However, the mlx5e_detach function was not updated accordingly, and it still tries to detach a non-existing netdev, causing a kernel crash. This patch fixes this issue. Fixes: aec002f6f82c ("net/mlx5e: Uninstantiate esw manager vport netdev on switchdev mode") Signed-off-by: Alaa Hleihel <alaa@mellanox.com> Reviewed-by: Roi Dayan <roid@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en_main.c')
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en_main.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 7aa900630d67..6a8dc73855c9 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -5165,6 +5165,11 @@ static void mlx5e_detach(struct mlx5_core_dev *mdev, void *vpriv)
struct mlx5e_priv *priv = vpriv;
struct net_device *netdev = priv->netdev;
+#ifdef CONFIG_MLX5_ESWITCH
+ if (MLX5_ESWITCH_MANAGER(mdev) && vpriv == mdev)
+ return;
+#endif
+
if (!netif_device_present(netdev))
return;