net/mlx5: E-Switch, Set correctly vport destination

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The cited commit moved from using reformat_id integer to packet_reformat
pointer which introduced the possibility to null pointer dereference.
When setting packet reformat flag and pkt_reformat pointer must
exists so checking MLX5_ESW_DEST_ENCAP is not enough, we need
to make sure the pkt_reformat is valid and check for MLX5_ESW_DEST_ENCAP_VALID.
If the dest encap valid flag does not exists then pkt_reformat can be
either invalid address or null.
Also, to make sure we don't try to access invalid pkt_reformat set it to
null when invalidated and invalidate it before calling add flow code as
its logically more correct and to be safe.

Fixes: 2b688ea5ef ("net/mlx5: Add flow steering actions to fs_cmd shim layer")
Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Chris Mi <cmi@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

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This commit is contained in:

Roi Dayan 2022-11-16 11:10:15 +02:00 • committed by Saeed Mahameed

parent 0d4e8ed139

commit 6d942e4044

2 changed files with 7 additions and 5 deletions

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10

drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun_encap.c

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2

drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c

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