net/mlx5e: Fix nest_level for vlan pop action

Current value of nest_level, assigned from net_device lower_level value,
does not reflect the actual number of vlan headers, needed to pop.
For ex., if we have untagged ingress traffic sended over vlan devices,
instead of one pop action, driver will perform two pop actions.
To fix that, calculate nest_level as difference between vlan device and
parent device lower_levels.

Fixes: a7983db5f52c ("net: remove unnecessary variables and callback")
Signed-off-by: Dmytro Linkin <dmitrolin@mellanox.com>
Signed-off-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index 438128dde187d7ec58892c2879c6037f807f576f..e3fee837c7a3e723abe8a76a66e5d70f66c9cb39 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -3558,12 +3558,13 @@ static int add_vlan_pop_action(struct mlx5e_priv *priv,
                               struct mlx5_esw_flow_attr *attr,
                               u32 *action)
 {
-       int nest_level = attr->parse_attr->filter_dev->lower_level;
        struct flow_action_entry vlan_act = {
                .id = FLOW_ACTION_VLAN_POP,
        };
-       int err = 0;
+       int nest_level, err = 0;
 
+       nest_level = attr->parse_attr->filter_dev->lower_level -
+                                               priv->netdev->lower_level;
        while (nest_level--) {
                err = parse_tc_vlan_action(priv, &vlan_act, attr, action);
                if (err)