mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-04-29 08:12:41 -04:00
Code Issues Packages Projects Releases Wiki Activity

net/mlx5: fw_tracer, allow 0 size string DBs

Browse Source 
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>
This commit is contained in:
Shay Drory
2023-01-11 13:44:31 +02:00
committed by Saeed Mahameed
parent 988c235227
commit b0118ced6b
1 changed files with 6 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c
View File

@@ -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]) {