[dpdk-dev] [PATCH v2] net/mlx5: fix memory management for released offloaded tunnels.

[Gregory Etelson]

PMD did not remove tunnel offload object from tunnels database before
it released the object memory. As the result, the tunnels database
become corrupted and subsequent search operations triggered PMD crash.
The patch removes tunnel offload object from the tunnels database when
the object is not in-use by PMD any more.

Fixes: bc1d90a3cf6f ("net/mlx5: fix build with Direct Verbs disabled")

Signed-off-by: Gregory Etelson <getelson at nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo at nvidia.com>
---
 drivers/net/mlx5/mlx5_flow.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c
index 642516ad4b..52ade39a42 100644
--- a/drivers/net/mlx5/mlx5_flow.c
+++ b/drivers/net/mlx5/mlx5_flow.c
@@ -7423,6 +7423,7 @@ mlx5_flow_tunnel_free(struct rte_eth_dev *dev,
 
 	DRV_LOG(DEBUG, "port %u release pmd tunnel id=0x%x",
 		dev->data->port_id, tunnel->tunnel_id);
+	LIST_REMOVE(tunnel, chain);
 	mlx5_hlist_destroy(tunnel->groups);
 	ipool = priv->sh->ipool[MLX5_IPOOL_TUNNEL_ID];
 	mlx5_ipool_free(ipool, tunnel->tunnel_id);
-- 
2.29.2