Commit d07ef3a8 authored Nov 30, 2023 by Moshe Shemesh Committed by Greg Kroah-Hartman Jan 08, 2024

net/mlx5: Fix fw tracer first block check



[ 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: c71ad41c ("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>

parent a46bb28f

drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -688,7 +688,7 @@ 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