[PATCH] amdgpu: use NULL instead of 0 for pointer

[PATCH] amdgpu: use NULL instead of 0 for pointer

[Arnd Bergmann]

In the AMD powerplay driver, a pointer is checked for validity by
comparing against an integer '0', which causes a harmless warning
when building with "make W=1":

drivers/gpu/drm/amd/amdgpu/../powerplay/hwmgr/processpptables.c:1502:16: error: ordered comparison of pointer with integer zero [-Werror=extra]

This changes the code to the more conventional "if (pointer)" check.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/gpu/drm/amd/powerplay/hwmgr/processpptables.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/processpptables.c b/drivers/gpu/drm/amd/powerplay/hwmgr/processpptables.c
index 2f1a14fe05b1..b64f42d2c3ae 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/processpptables.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/processpptables.c
@@ -1499,7 +1499,7 @@ int get_number_of_vce_state_table_entries(
 	const ATOM_PPLIB_VCE_State_Table *vce_table =
 				    get_vce_state_table(hwmgr, table);
 
-	if (vce_table > 0)
+	if (vce_table)
 		return vce_table->numEntries;
 
 	return 0;
-- 
2.9.0

Re: [PATCH] amdgpu: use NULL instead of 0 for pointer

[Christian König]

Am 15.06.2016 um 22:15 schrieb Arnd Bergmann:
> In the AMD powerplay driver, a pointer is checked for validity by
> comparing against an integer '0', which causes a harmless warning
> when building with "make W=1":
>
> drivers/gpu/drm/amd/amdgpu/../powerplay/hwmgr/processpptables.c:1502:16: error: ordered comparison of pointer with integer zero [-Werror=extra]
>
> This changes the code to the more conventional "if (pointer)" check.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Reviewed-by: Christian König <christian.koenig@amd.com>.

> ---
>   drivers/gpu/drm/amd/powerplay/hwmgr/processpptables.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/processpptables.c b/drivers/gpu/drm/amd/powerplay/hwmgr/processpptables.c
> index 2f1a14fe05b1..b64f42d2c3ae 100644
> --- a/drivers/gpu/drm/amd/powerplay/hwmgr/processpptables.c
> +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/processpptables.c
> @@ -1499,7 +1499,7 @@ int get_number_of_vce_state_table_entries(
>   	const ATOM_PPLIB_VCE_State_Table *vce_table =
>   				    get_vce_state_table(hwmgr, table);
>   
> -	if (vce_table > 0)
> +	if (vce_table)
>   		return vce_table->numEntries;
>   
>   	return 0;

Re: [PATCH] amdgpu: use NULL instead of 0 for pointer

[Alex Deucher]

On Wed, Jun 15, 2016 at 4:32 PM, Christian König
<christian.koenig@amd.com> wrote:
> Am 15.06.2016 um 22:15 schrieb Arnd Bergmann:
>>
>> In the AMD powerplay driver, a pointer is checked for validity by
>> comparing against an integer '0', which causes a harmless warning
>> when building with "make W=1":
>>
>> drivers/gpu/drm/amd/amdgpu/../powerplay/hwmgr/processpptables.c:1502:16:
>> error: ordered comparison of pointer with integer zero [-Werror=extra]
>>
>> This changes the code to the more conventional "if (pointer)" check.
>>
>> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
>
>
> Reviewed-by: Christian König <christian.koenig@amd.com>.

Applied.  thanks!

Alex

>
>> ---
>>   drivers/gpu/drm/amd/powerplay/hwmgr/processpptables.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/processpptables.c
>> b/drivers/gpu/drm/amd/powerplay/hwmgr/processpptables.c
>> index 2f1a14fe05b1..b64f42d2c3ae 100644
>> --- a/drivers/gpu/drm/amd/powerplay/hwmgr/processpptables.c
>> +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/processpptables.c
>> @@ -1499,7 +1499,7 @@ int get_number_of_vce_state_table_entries(
>>         const ATOM_PPLIB_VCE_State_Table *vce_table =
>>                                     get_vce_state_table(hwmgr, table);
>>   -     if (vce_table > 0)
>> +       if (vce_table)
>>                 return vce_table->numEntries;
>>         return 0;
>
>
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