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| author | Emre Cecanpunar <emreleno@gmail.com> | 2026-04-07 17:25:13 +0300 |
|---|---|---|
| committer | Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2026-04-09 14:46:34 +0300 |
| commit | cb4daa450f05447c1f914eaef75b2577c25a0fcd (patch) | |
| tree | e39e5fb050c8fc4714c38bdeb16adadf6fecbc8a /tools/lib/python/kdoc/python_version.py | |
| parent | 6297443beb0c5606399ec7d4f4b335e2e7379147 (diff) | |
platform/x86: hp-wmi: fix u8 underflow in gpu_delta calculation
gpu_delta was declared as u8. If the firmware specifies a GPU RPM
lower than the CPU RPM, subtracting them causes an underflow
(e.g. 10 - 20 = 246), which forces the GPU fan to remain clamped at
U8_MAX (100% speed) during operation.
Change gpu_delta to int and use signed arithmetic. Existing signed logic
in hp_wmi_fan_speed_set() correctly handles negative deltas.
Fixes: 46be1453e6e6 ("platform/x86: hp-wmi: add manual fan control for Victus S models")
Suggested-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Emre Cecanpunar <emreleno@gmail.com>
Link: https://patch.msgid.link/20260407142515.20683-5-emreleno@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Diffstat (limited to 'tools/lib/python/kdoc/python_version.py')
0 files changed, 0 insertions, 0 deletions