diff options
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c index f3f6eb081948..f81da2dc6af1 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c @@ -1539,6 +1539,14 @@ mlx5_tc_ct_free_pre_ct_tables(struct mlx5_ct_ft *ft) mlx5_tc_ct_free_pre_ct(ft, &ft->pre_ct); } +/* To avoid false lock dependency warning set the ct_entries_ht lock + * class different than the lock class of the ht being used when deleting + * last flow from a group and then deleting a group, we get into del_sw_flow_group() + * which call rhashtable_destroy on fg->ftes_hash which will take ht->mutex but + * it's different than the ht->mutex here. + */ +static struct lock_class_key ct_entries_ht_lock_key; + static struct mlx5_ct_ft * mlx5_tc_ct_add_ft_cb(struct mlx5_tc_ct_priv *ct_priv, u16 zone, struct nf_flowtable *nf_ft) @@ -1573,6 +1581,8 @@ mlx5_tc_ct_add_ft_cb(struct mlx5_tc_ct_priv *ct_priv, u16 zone, if (err) goto err_init; + lockdep_set_class(&ft->ct_entries_ht.mutex, &ct_entries_ht_lock_key); + err = rhashtable_insert_fast(&ct_priv->zone_ht, &ft->node, zone_params); if (err) |