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net/mlx5: Collect command failures data only for known commands

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commit 2a0a935fb64ee8af253b9c6133bb6702fb152ac2 upstream.

DEVX can issue a general command, which is not used by mlx5 driver.
In case such command is failed, mlx5 is trying to collect the failure
data, However, mlx5 doesn't create a storage for this command, since
mlx5 doesn't use it. This lead to array-index-out-of-bounds error.

Fix it by checking whether the command is known before collecting the
failure data.

Fixes: 34f46ae0d4 ("net/mlx5: Add command failures data to debugfs")
Signed-off-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Shay Drory 2023-05-02 11:03:53 +03:00 committed by Greg Kroah-Hartman
parent 390aa5c006
commit 411e4d6caa
1 changed files with 2 additions and 1 deletions
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3
drivers/net/ethernet/mellanox/mlx5/core/cmd.c
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@ -1894,9 +1894,10 @@ static void mlx5_cmd_err_trace(struct mlx5_core_dev *dev, u16 opcode, u16 op_mod
static void cmd_status_log(struct mlx5_core_dev *dev, u16 opcode, u8 status,
u32 syndrome, int err)
{
const char *namep = mlx5_command_str(opcode);
struct mlx5_cmd_stats *stats;
if (!err)
if (!err || !(strcmp(namep, "unknown command opcode")))
return;
stats = &dev->cmd.stats[opcode];