[RFC 1/2] drm: add devm release action

[Aravind Iddamsetty]

On 21/03/24 02:23, Rodrigo Vivi wrote:
> On Wed, Mar 20, 2024 at 04:14:25PM +0530, Aravind Iddamsetty wrote:
>> In scenarios where drm_dev_put is directly called by driver we want to
>> release devm_drm_dev_init_release action associated with struct
>> drm_device.
>>
>> Cc: Thomas Hellstr_m <thomas.hellstrom at linux.intel.com>
>>
>> Signed-off-by: Aravind Iddamsetty <aravind.iddamsetty at linux.intel.com>
>> ---
>>  drivers/gpu/drm/drm_drv.c | 6 ++++++
>>  include/drm/drm_drv.h     | 4 ++++
>>  2 files changed, 10 insertions(+)
>>
>> diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
>> index 243cacb3575c..b23c5081812b 100644
>> --- a/drivers/gpu/drm/drm_drv.c
>> +++ b/drivers/gpu/drm/drm_drv.c
>> @@ -714,6 +714,12 @@ static int devm_drm_dev_init(struct device *parent,
>>  					devm_drm_dev_init_release, dev);
>>  }
>>  
>> +void __devm_drm_dev_release_action(struct drm_device *dev)
>> +{
>> +	devm_release_action(dev->dev, devm_drm_dev_init_release, dev);
>> +}
>> +EXPORT_SYMBOL(__devm_drm_dev_release_action);
>> +
>>  void *__devm_drm_dev_alloc(struct device *parent,
>>  			   const struct drm_driver *driver,
>>  			   size_t size, size_t offset)
>> diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
>> index 8878260d7529..a1d12cb72088 100644
>> --- a/include/drm/drm_drv.h
>> +++ b/include/drm/drm_drv.h
>> @@ -444,6 +444,8 @@ struct drm_driver {
>>  	const struct file_operations *fops;
>>  };
>>  
>> +void __devm_drm_dev_release_action(struct drm_device *dev);
>> +
>>  void *__devm_drm_dev_alloc(struct device *parent,
>>  			   const struct drm_driver *driver,
>>  			   size_t size, size_t offset);
>> @@ -477,6 +479,8 @@ void *__devm_drm_dev_alloc(struct device *parent,
>>  #define devm_drm_dev_alloc(parent, driver, type, member) \
>>  	((type *) __devm_drm_dev_alloc(parent, driver, sizeof(type), \
>>  				       offsetof(type, member)))
>> +#define devm_drm_release_action(drm_dev) \
>> +	__devm_drm_dev_release_action(drm_dev)
> why not simply renaming the original function?

didn't get you which function are you referring to?

Thanks,
Aravind.
>
>>  
>>  struct drm_device *drm_dev_alloc(const struct drm_driver *driver,
>>  				 struct device *parent);
>> -- 
>> 2.25.1
>>