[net-next V2 08/15] net/mlx5: E-Switch, Protect from invalid memory access in offload fdb table

[Saeed Mahameed]

From: Roi Dayan <r...@mellanox.com>

The esw offloads structures share a union with the legacy mode structs.
Reset the offloads struct to zero in init to protect from null
assumptions made by the legacy mode code.

Signed-off-by: Roi Dayan <r...@mellanox.com>
Reviewed-by: Or Gerlitz <ogerl...@mellanox.com>
Signed-off-by: Saeed Mahameed <sae...@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c 
b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
index 6c72f33f6d09..fe770cd2151c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
@@ -1609,6 +1609,7 @@ static int esw_offloads_steering_init(struct mlx5_eswitch 
*esw, int nvports)
 {
        int err;
 
+       memset(&esw->fdb_table.offloads, 0, sizeof(struct offloads_fdb));
        mutex_init(&esw->fdb_table.offloads.fdb_prio_lock);
 
        err = esw_create_offloads_fdb_tables(esw, nvports);
-- 
2.20.1