net/mlx5e: Fix overrun reported by coverity

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Coverity Scan reports the following issue. But it's impossible that
mlx5_get_dev_index returns 7 for PF, even if the index is calculated
from PCI FUNC ID. So add the checking to make coverity slience.

CID 610894 (#2 of 2): Out-of-bounds write (OVERRUN)
Overrunning array esw->fdb_table.offloads.peer_miss_rules of 4 8-byte
elements at element index 7 (byte offset 63) using index
mlx5_get_dev_index(peer_dev) (which evaluates to 7).

Fixes: 9bee385a6e ("net/mlx5: E-switch, refactor FDB miss rule add/remove")
Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

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Jianbo Liu 2023-11-14 01:25:21 +00:00 • committed by Saeed Mahameed

parent e75efc6466

commit da75fa5428

1 changed files with 10 additions and 2 deletions

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

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