github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-12 16:18:45 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity

drm/amd/pm: Avoid overflow when sorting pp_feature list

Browse Source 
pp_features sorting uses int8_t sort_feature[] to store driver
feature enum indices. On newer ASICs the enum index can exceed 127,
causing signed overflow and silently dropping entries from the output.
Switch the array to int16_t so all enum indices are preserved.

Signed-off-by: Asad Kamal <asad.kamal@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Asad Kamal 2026-03-02 13:35:30 +08:00 committed by Alex Deucher
parent b2e997e6cf
commit 8e8f6bda8a
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c
View File

@ -880,7 +880,7 @@ static const char *smu_get_feature_name(struct smu_context *smu,
size_t smu_cmn_get_pp_feature_mask(struct smu_context *smu,
char *buf)
{
int8_t sort_feature[MAX(SMU_FEATURE_COUNT, SMU_FEATURE_MAX)];
int16_t sort_feature[MAX(SMU_FEATURE_COUNT, SMU_FEATURE_MAX)];
struct smu_feature_bits feature_mask;
uint32_t features[2];
int i, feature_index;