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net/mlx5: Fix fw tracer first block check

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[ Upstream commit 4261edf11cb7c9224af713a102e5616329306932 ]

While handling new traces, to verify it is not the first block being
written, last_timestamp is checked. But instead of checking it is non
zero it is verified to be zero. Fix to verify last_timestamp is not
zero.

Fixes: c71ad41ccb ("net/mlx5: FW tracer, events handling")
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Feras Daoud <ferasda@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Moshe Shemesh 2023-11-30 11:30:34 +02:00 committed by Greg Kroah-Hartman
parent fc4c53f8e9
commit e8ba688a64
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c
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@ -691,7 +691,7 @@ static void mlx5_fw_tracer_handle_traces(struct work_struct *work)
while (block_timestamp > tracer->last_timestamp) {
/* Check block override if it's not the first block */
if (!tracer->last_timestamp) {
if (tracer->last_timestamp) {
u64 *ts_event;
/* To avoid block override be the HW in case of buffer
* wraparound, the time stamp of the previous block