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@foxhound.fi>
---
 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;
 
 	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);
 
-- 
2.39.2

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@foxhound.fi>
> ---
>   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);
>   

On 2023-11-10 10:25, Lazar, Lijo wrote:
> 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@foxhound.fi>
>> ---
>>   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

     I checked it, and ssize_t also removes the warning,
so you can stay with whatever is in the amd-staging-drm-next
tree and ignore this.

     Thanks!

     José.