diff options
| author | Shay Drory <shayd@nvidia.com> | 2023-01-11 14:44:31 +0300 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@nvidia.com> | 2023-02-08 03:29:56 +0300 |
| commit | b0118ced6b2e4c4d76083724cd4dba766333b3cd (patch) | |
| tree | ad0fdbc309f3485663e4b2a7224d93b3897eb0fd | |
| parent | 988c2352273997a242f15c4fc3711773515006a2 (diff) | |
| download | linux-b0118ced6b2e4c4d76083724cd4dba766333b3cd.tar.xz | |
net/mlx5: fw_tracer, allow 0 size string DBs
Device can expose string DB of size 0 which means this string DB is
currently not in use. Therefore, allow for 0 size string DBs.
Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c b/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c index 4ce75cef46c8..de98357dfd14 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c @@ -233,6 +233,8 @@ static int mlx5_fw_tracer_allocate_strings_db(struct mlx5_fw_tracer *tracer) int i; for (i = 0; i < num_string_db; i++) { + if (!string_db_size_out[i]) + continue; tracer->str_db.buffer[i] = kzalloc(string_db_size_out[i], GFP_KERNEL); if (!tracer->str_db.buffer[i]) goto free_strings_db; @@ -278,6 +280,8 @@ static void mlx5_tracer_read_strings_db(struct work_struct *work) } for (i = 0; i < num_string_db; i++) { + if (!tracer->str_db.size_out[i]) + continue; offset = 0; MLX5_SET(mtrc_stdb, in, string_db_index, i); num_of_reads = tracer->str_db.size_out[i] / @@ -384,6 +388,8 @@ static struct tracer_string_format *mlx5_tracer_get_string(struct mlx5_fw_tracer str_ptr = tracer_event->string_event.string_param; for (i = 0; i < tracer->str_db.num_string_db; i++) { + if (!tracer->str_db.size_out[i]) + continue; if (str_ptr > tracer->str_db.base_address_out[i] && str_ptr < tracer->str_db.base_address_out[i] + tracer->str_db.size_out[i]) { |