netdev - [PATCH net-next V2 5/7] net/mlx5e: Correct cleanup order when deleting offloaded TC rules

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Date:   Wed, 30 Nov 2016 17:59:41 +0200
From:   Saeed Mahameed <saeedm@...lanox.com>
To:     "David S. Miller" <davem@...emloft.net>
Cc:     netdev@...r.kernel.org, Tariq Toukan <tariqt@...lanox.com>,
        Or Gerlitz <ogerlitz@...lanox.com>,
        Roi Dayan <roid@...lanox.com>,
        Sebastian Ott <sebott@...ux.vnet.ibm.com>,
        Saeed Mahameed <saeedm@...lanox.com>
Subject: [PATCH net-next V2 5/7] net/mlx5e: Correct cleanup order when deleting offloaded TC rules

From: Roi Dayan <roid@...lanox.com>

According to the reverse unwinding principle, on delete time we should
first handle deletion of the steering rule and later handle the vlan
deletion from the eswitch.

Fixes: 8b32580df1cb ("net/mlx5e: Add TC vlan action for SRIOV offloads")
Signed-off-by: Roi Dayan <roid@...lanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index dd6d954..4d71445 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -151,11 +151,11 @@ static void mlx5e_tc_del_flow(struct mlx5e_priv *priv,
 
 	counter = mlx5_flow_rule_counter(rule);
 
+	mlx5_del_flow_rules(rule);
+
 	if (esw && esw->mode == SRIOV_OFFLOADS)
 		mlx5_eswitch_del_vlan_action(esw, attr);
 
-	mlx5_del_flow_rules(rule);
-
 	mlx5_fc_destroy(priv->mdev, counter);
 
 	if (!mlx5e_tc_num_filters(priv) && (priv->fs.tc.t)) {
-- 
2.7.4