This is a note to let you know that I've just added the patch titled
net/mlx5: Collect command failures data only for known commands
to the 6.3-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-mlx5-collect-command-failures-data-only-for-known-commands.patch
and it can be found in the queue-6.3 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 2a0a935fb64ee8af253b9c6133bb6702fb152ac2 Mon Sep 17 00:00:00 2001
From: Shay Drory <shayd@xxxxxxxxxx>
Date: Tue, 2 May 2023 11:03:53 +0300
Subject: net/mlx5: Collect command failures data only for known commands
From: Shay Drory <shayd@xxxxxxxxxx>
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: 34f46ae0d4b3 ("net/mlx5: Add command failures data to debugfs")
Signed-off-by: Shay Drory <shayd@xxxxxxxxxx>
Signed-off-by: Saeed Mahameed <saeedm@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/mellanox/mlx5/core/cmd.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
@@ -1920,9 +1920,10 @@ static void mlx5_cmd_err_trace(struct ml
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];
Patches currently in stable-queue which might be from shayd@xxxxxxxxxx are
queue-6.3/net-mlx5-devcom-serialize-devcom-registration.patch
queue-6.3/net-mlx5e-fix-deadlock-in-tc-route-query-code.patch
queue-6.3/net-mlx5-devcom-fix-error-flow-in-mlx5_devcom_register_device.patch
queue-6.3/net-mlx5-handle-pairing-of-e-switch-via-uplink-un-load-apis.patch
queue-6.3/net-mlx5-collect-command-failures-data-only-for-known-commands.patch
