[PATCH net v1] net/mlx5: Fix HWS L2-to-L3 tunnel reformat release
From: Prathamesh Deshpande
Date: Mon May 04 2026 - 18:19:51 EST
mlx5_cmd_hws_packet_reformat_alloc() allocates
MLX5_REFORMAT_TYPE_L2_TO_L3_TUNNEL objects from el2tol3tnl_pools with
MLX5HWS_ACTION_TYP_REFORMAT_L2_TO_TNL_L3.
The deallocation path uses el2tol2tnl_pools with
MLX5HWS_ACTION_TYP_REFORMAT_L2_TO_TNL_L2 instead. This releases the
packet-reformat entry through the wrong pool, corrupting pool accounting
and potentially moving the bulk entry onto the wrong pool list.
Use the matching L2-to-L3 tunnel pool and action type when releasing the
object.
Fixes: aecd9d1020e3 ("net/mlx5: fs, add HWS packet reformat API function")
Signed-off-by: Prathamesh Deshpande <prathameshdeshpande7@xxxxxxxxx>
---
drivers/net/ethernet/mellanox/mlx5/core/steering/hws/fs_hws.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/fs_hws.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/fs_hws.c
index aca77853abb8..60fbb048db10 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/fs_hws.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/fs_hws.c
@@ -1396,8 +1396,8 @@ static void mlx5_cmd_hws_packet_reformat_dealloc(struct mlx5_flow_root_namespace
pr_data->data_size);
break;
case MLX5_REFORMAT_TYPE_L2_TO_L3_TUNNEL:
- pr_pool = mlx5_fs_get_pr_encap_pool(dev, &hws_pool->el2tol2tnl_pools,
- MLX5HWS_ACTION_TYP_REFORMAT_L2_TO_TNL_L2,
+ pr_pool = mlx5_fs_get_pr_encap_pool(dev, &hws_pool->el2tol3tnl_pools,
+ MLX5HWS_ACTION_TYP_REFORMAT_L2_TO_TNL_L3,
pr_data->data_size);
break;
case MLX5_REFORMAT_TYPE_L3_TUNNEL_TO_L2:
--
2.43.0