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authorMaor Dickman <maord@nvidia.com>2022-08-04 15:28:42 +0300
committerSaeed Mahameed <saeedm@nvidia.com>2022-08-22 12:57:09 -0700
commit550f96432e6f6770efdaee0e65239d61431062a1 (patch)
treef938a3e97674ef398b11093e8c333e7388a1b964 /drivers
parentf7a4e867f48c2e03ab6a237c06ab923d80aeeeb1 (diff)
downloadlinux-550f96432e6f6770efdaee0e65239d61431062a1.tar.bz2
net/mlx5e: Fix wrong tc flag used when set hw-tc-offload off
The cited commit reintroduced the ability to set hw-tc-offload in switchdev mode by reusing NIC mode calls without modifying it to support both modes, this can cause an illegal memory access when trying to turn hw-tc-offload off. Fix this by using the right TC_FLAG when checking if tc rules are installed while disabling hw-tc-offload. Fixes: d3cbd4254df8 ("net/mlx5e: Add ndo_set_feature for uplink representor") Signed-off-by: Maor Dickman <maord@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en_main.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index c65b6a2883d3..02eb2f0fa2ae 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -3682,7 +3682,9 @@ static int set_feature_hw_tc(struct net_device *netdev, bool enable)
int err = 0;
#if IS_ENABLED(CONFIG_MLX5_CLS_ACT)
- if (!enable && mlx5e_tc_num_filters(priv, MLX5_TC_FLAG(NIC_OFFLOAD))) {
+ int tc_flag = mlx5e_is_uplink_rep(priv) ? MLX5_TC_FLAG(ESW_OFFLOAD) :
+ MLX5_TC_FLAG(NIC_OFFLOAD);
+ if (!enable && mlx5e_tc_num_filters(priv, tc_flag)) {
netdev_err(netdev,
"Active offloaded tc filters, can't turn hw_tc_offload off\n");
return -EINVAL;