Re: [PATCH v3 07/28] drm/etnaviv: switch to drm_*_get(), drm_*_put() helpers

[Cihangir Akturk <cakturk@gmail.com>]

On Fri, Aug 11, 2017 at 04:43:07PM +0200, Lucas Stach wrote:
> Am Freitag, den 11.08.2017, 15:32 +0300 schrieb Cihangir Akturk:
> > Use drm_*_get() and drm_*_put() helpers instead of drm_*_reference()
> > and drm_*_unreference() helpers.
> > 
> > drm_*_reference() and drm_*_unreference() functions are just
> > compatibility alias for drm_*_get() and drm_*_put() and should not be
> > used by new code. So convert all users of compatibility functions to
> > use the new APIs.
> > 
> > Generated by: scripts/coccinelle/api/drm-get-put.cocci
> > 
> > Signed-off-by: Cihangir Akturk <cakturk@gmail.com>
> 
> I have already applied v1 of this patch to the etnaviv tree.

This is identical to the same patch of v1, just based on drm-misc-next
as suggested by Sean Paul.


> Regards,
> Lucas
> 
> > ---
> >  drivers/gpu/drm/etnaviv/etnaviv_drv.c        |  8 ++++----
> >  drivers/gpu/drm/etnaviv/etnaviv_gem.c        | 20 ++++++++++----------
> >  drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c  |  2 +-
> >  drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c |  4 ++--
> >  4 files changed, 17 insertions(+), 17 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.c b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
> > index 91e17ae..2cb4773 100644
> > --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.c
> > +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
> > @@ -316,7 +316,7 @@ static int etnaviv_ioctl_gem_cpu_prep(struct drm_device *dev, void *data,
> >  
> >  	ret = etnaviv_gem_cpu_prep(obj, args->op, &TS(args->timeout));
> >  
> > -	drm_gem_object_unreference_unlocked(obj);
> > +	drm_gem_object_put_unlocked(obj);
> >  
> >  	return ret;
> >  }
> > @@ -337,7 +337,7 @@ static int etnaviv_ioctl_gem_cpu_fini(struct drm_device *dev, void *data,
> >  
> >  	ret = etnaviv_gem_cpu_fini(obj);
> >  
> > -	drm_gem_object_unreference_unlocked(obj);
> > +	drm_gem_object_put_unlocked(obj);
> >  
> >  	return ret;
> >  }
> > @@ -357,7 +357,7 @@ static int etnaviv_ioctl_gem_info(struct drm_device *dev, void *data,
> >  		return -ENOENT;
> >  
> >  	ret = etnaviv_gem_mmap_offset(obj, &args->offset);
> > -	drm_gem_object_unreference_unlocked(obj);
> > +	drm_gem_object_put_unlocked(obj);
> >  
> >  	return ret;
> >  }
> > @@ -446,7 +446,7 @@ static int etnaviv_ioctl_gem_wait(struct drm_device *dev, void *data,
> >  
> >  	ret = etnaviv_gem_wait_bo(gpu, obj, timeout);
> >  
> > -	drm_gem_object_unreference_unlocked(obj);
> > +	drm_gem_object_put_unlocked(obj);
> >  
> >  	return ret;
> >  }
> > diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.c b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
> > index 9a3bea7..e36fbb9 100644
> > --- a/drivers/gpu/drm/etnaviv/etnaviv_gem.c
> > +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
> > @@ -265,7 +265,7 @@ void etnaviv_gem_mapping_reference(struct etnaviv_vram_mapping *mapping)
> >  {
> >  	struct etnaviv_gem_object *etnaviv_obj = mapping->object;
> >  
> > -	drm_gem_object_reference(&etnaviv_obj->base);
> > +	drm_gem_object_get(&etnaviv_obj->base);
> >  
> >  	mutex_lock(&etnaviv_obj->lock);
> >  	WARN_ON(mapping->use == 0);
> > @@ -282,7 +282,7 @@ void etnaviv_gem_mapping_unreference(struct etnaviv_vram_mapping *mapping)
> >  	mapping->use -= 1;
> >  	mutex_unlock(&etnaviv_obj->lock);
> >  
> > -	drm_gem_object_unreference_unlocked(&etnaviv_obj->base);
> > +	drm_gem_object_put_unlocked(&etnaviv_obj->base);
> >  }
> >  
> >  struct etnaviv_vram_mapping *etnaviv_gem_mapping_get(
> > @@ -358,7 +358,7 @@ struct etnaviv_vram_mapping *etnaviv_gem_mapping_get(
> >  		return ERR_PTR(ret);
> >  
> >  	/* Take a reference on the object */
> > -	drm_gem_object_reference(obj);
> > +	drm_gem_object_get(obj);
> >  	return mapping;
> >  }
> >  
> > @@ -671,7 +671,7 @@ static struct drm_gem_object *__etnaviv_gem_new(struct drm_device *dev,
> >  	return obj;
> >  
> >  fail:
> > -	drm_gem_object_unreference_unlocked(obj);
> > +	drm_gem_object_put_unlocked(obj);
> >  	return ERR_PTR(ret);
> >  }
> >  
> > @@ -688,14 +688,14 @@ int etnaviv_gem_new_handle(struct drm_device *dev, struct drm_file *file,
> >  
> >  	ret = etnaviv_gem_obj_add(dev, obj);
> >  	if (ret < 0) {
> > -		drm_gem_object_unreference_unlocked(obj);
> > +		drm_gem_object_put_unlocked(obj);
> >  		return ret;
> >  	}
> >  
> >  	ret = drm_gem_handle_create(file, obj, handle);
> >  
> >  	/* drop reference from allocate - handle holds it now */
> > -	drm_gem_object_unreference_unlocked(obj);
> > +	drm_gem_object_put_unlocked(obj);
> >  
> >  	return ret;
> >  }
> > @@ -712,7 +712,7 @@ struct drm_gem_object *etnaviv_gem_new(struct drm_device *dev,
> >  
> >  	ret = etnaviv_gem_obj_add(dev, obj);
> >  	if (ret < 0) {
> > -		drm_gem_object_unreference_unlocked(obj);
> > +		drm_gem_object_put_unlocked(obj);
> >  		return ERR_PTR(ret);
> >  	}
> >  
> > @@ -800,7 +800,7 @@ static void __etnaviv_gem_userptr_get_pages(struct work_struct *_work)
> >  	}
> >  
> >  	mutex_unlock(&etnaviv_obj->lock);
> > -	drm_gem_object_unreference_unlocked(&etnaviv_obj->base);
> > +	drm_gem_object_put_unlocked(&etnaviv_obj->base);
> >  
> >  	mmput(work->mm);
> >  	put_task_struct(work->task);
> > @@ -858,7 +858,7 @@ static int etnaviv_gem_userptr_get_pages(struct etnaviv_gem_object *etnaviv_obj)
> >  	}
> >  
> >  	get_task_struct(current);
> > -	drm_gem_object_reference(&etnaviv_obj->base);
> > +	drm_gem_object_get(&etnaviv_obj->base);
> >  
> >  	work->mm = mm;
> >  	work->task = current;
> > @@ -924,6 +924,6 @@ int etnaviv_gem_new_userptr(struct drm_device *dev, struct drm_file *file,
> >  	ret = drm_gem_handle_create(file, &etnaviv_obj->base, handle);
> >  unreference:
> >  	/* drop reference from allocate - handle holds it now */
> > -	drm_gem_object_unreference_unlocked(&etnaviv_obj->base);
> > +	drm_gem_object_put_unlocked(&etnaviv_obj->base);
> >  	return ret;
> >  }
> > diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c
> > index e5da4f23..ae88472 100644
> > --- a/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c
> > +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c
> > @@ -146,7 +146,7 @@ struct drm_gem_object *etnaviv_gem_prime_import_sg_table(struct drm_device *dev,
> >  	return &etnaviv_obj->base;
> >  
> >  fail:
> > -	drm_gem_object_unreference_unlocked(&etnaviv_obj->base);
> > +	drm_gem_object_put_unlocked(&etnaviv_obj->base);
> >  
> >  	return ERR_PTR(ret);
> >  }
> > diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
> > index 5bd9316..d456a6b 100644
> > --- a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
> > +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
> > @@ -88,7 +88,7 @@ static int submit_lookup_objects(struct etnaviv_gem_submit *submit,
> >  		 * Take a refcount on the object. The file table lock
> >  		 * prevents the object_idr's refcount on this being dropped.
> >  		 */
> > -		drm_gem_object_reference(obj);
> > +		drm_gem_object_get(obj);
> >  
> >  		submit->bos[i].obj = to_etnaviv_bo(obj);
> >  	}
> > @@ -291,7 +291,7 @@ static void submit_cleanup(struct etnaviv_gem_submit *submit)
> >  		struct etnaviv_gem_object *etnaviv_obj = submit->bos[i].obj;
> >  
> >  		submit_unlock_object(submit, i);
> > -		drm_gem_object_unreference_unlocked(&etnaviv_obj->base);
> > +		drm_gem_object_put_unlocked(&etnaviv_obj->base);
> >  	}
> >  
> >  	ww_acquire_fini(&submit->ticket);
> 
>