Re: [PATCH v7 11/44] [media] media: use entity.graph_obj.mdev instead of .parent

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On 08/23/2015 10:17 PM, Mauro Carvalho Chehab wrote:
> From: Javier Martinez Canillas <javier@xxxxxxxxxxxxxxx>
> 
> The struct media_entity has a .parent field that stores a pointer
> to the parent struct media_device. But recently a media_gobj was
> embedded into the entities and since struct media_gojb already has
> a pointer to a struct media_device in the .mdev field, the .parent
> field becomes redundant and can be removed.
> 
> This patch replaces all the usage of .parent by .graph_obj.mdev so
> that field will become unused and can be removed on a later patch.
> 
> No functional changes.
> 
> The transformation was made using the following coccinelle spatch:
> 
> @@
> struct media_entity *me;
> @@
> 
> - me->parent
> + me->graph_obj.mdev
> 
> @@
> struct media_entity *link;
> @@
> 
> - link->source->entity->parent
> + link->source->entity->graph_obj.mdev
> 
> @@
> struct exynos_video_entity *ve;
> @@
> 
> - ve->vdev.entity.parent
> + ve->vdev.entity.graph_obj.mdev
> 
> Suggested-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx>
> 
> Signed-off-by: Javier Martinez Canillas <javier@xxxxxxxxxxxxxxx>
> Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx>

Acked-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
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