Re: [PATCH] drm/amd/pm: make power values signed

From: Lazar, Lijo
Date: Fri Nov 10 2023 - 14:21:43 EST




On 11/9/2023 2:11 PM, José Pekkarinen wrote:
The following patch will convert the power values returned by
amdgpu_hwmon_get_power to signed, fixing the following warnings reported
by coccinelle:

drivers/gpu/drm/amd/pm/amdgpu_pm.c:2801:5-8: WARNING: Unsigned expression compared with zero: val < 0
drivers/gpu/drm/amd/pm/amdgpu_pm.c:2814:5-8: WARNING: Unsigned expression compared with zero: val < 0

Signed-off-by: José Pekkarinen <jose.pekkarinen@xxxxxxxxxxx>
---
drivers/gpu/drm/amd/pm/amdgpu_pm.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/pm/amdgpu_pm.c b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
index e7bb1d324084..913ff62d5d5e 100644
--- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
@@ -2795,7 +2795,7 @@ static ssize_t amdgpu_hwmon_show_power_avg(struct device *dev,
struct device_attribute *attr,
char *buf)
{
- unsigned int val;
+ int val;

Hi Alex,

It's a different code in drm-next.

https://gitlab.freedesktop.org/agd5f/linux/-/blob/amd-staging-drm-next/drivers/gpu/drm/amd/pm/amdgpu_pm.c#L2936

Thanks,
Lijo

val = amdgpu_hwmon_get_power(dev, AMDGPU_PP_SENSOR_GPU_AVG_POWER);
@@ -2806,7 +2806,7 @@ static ssize_t amdgpu_hwmon_show_power_input(struct device *dev,
struct device_attribute *attr,
char *buf)
{
- unsigned int val;
+ int val;
val = amdgpu_hwmon_get_power(dev, AMDGPU_PP_SENSOR_GPU_INPUT_POWER);