[PATCH v9 8/8] drm: Remove usage of deprecated DRM_DEBUG_KMS

Jani Nikula jani.nikula at linux.intel.com
Wed Jun 7 08:12:16 UTC 2023


On Wed, 07 Jun 2023, Laurent Pinchart <laurent.pinchart at ideasonboard.com> wrote:
> Hi Jani,
>
> On Wed, Jun 07, 2023 at 12:39:44AM +0300, Jani Nikula wrote:
>> On Tue, 06 Jun 2023, Laurent Pinchart wrote:
>> > On Tue, Jun 06, 2023 at 04:15:22PM +0530, Siddh Raman Pant wrote:
>> >> @@ -777,7 +793,7 @@ int drm_client_modeset_probe(struct drm_client_dev *client, unsigned int width,
>> >>  	int i, ret = 0;
>> >>  	bool *enabled;
>> >>  
>> >> -	DRM_DEBUG_KMS("\n");
>> >> +	drm_dbg_kms(dev, "\n");
>> >
>> > This message is pretty useless, it could be dropped on top of this
>> > series.
>> 
>> They do debug log the function being called.
>
> I overlooked the fact that ___drm_dbg() prints the caller's function
> name using __builtin_return_address(). It thus has marginally more value
> than I thought. Still, function tracing is best performed with ftrace().

I'm not going to argue this one too much, but it can be quite a step
getting a random bug reporter from providing dmesgs to running ftrace.

BR,
Jani.


-- 
Jani Nikula, Intel Open Source Graphics Center


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