linux-kernel - Re: [PATCHv4 3/3] drm/vgem: Enable dmabuf import interfaces

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Date:   Thu, 04 May 2017 21:09:54 -0700
From:   Joe Perches <joe@...ches.com>
To:     Chris Wilson <chris@...is-wilson.co.uk>,
        Laura Abbott <labbott@...hat.com>
Cc:     Daniel Vetter <daniel.vetter@...ll.ch>,
        Sean Paul <seanpaul@...omium.org>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Sumit Semwal <sumit.semwal@...aro.org>,
        intel-gfx@...ts.freedesktop.org,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>
Subject: Re: [PATCHv4 3/3] drm/vgem: Enable dmabuf import interfaces

On Thu, 2017-05-04 at 21:25 +0100, Chris Wilson wrote:
> On Thu, May 04, 2017 at 11:45:48AM -0700, Laura Abbott wrote:
> > 
> > Enable the GEM dma-buf import interfaces in addition to the export
> > interfaces. This lets vgem be used as a test source for other allocators
> > (e.g. Ion).
> > 
> > Reviewed-by: Chris Wilson <chris@...is-wilson.co.uk>
> > Signed-off-by: Laura Abbott <labbott@...hat.com>
> > ---
> > v4: Use new drm_gem_prime_import_dev function
> > ---
> >  static const struct vm_operations_struct vgem_gem_vm_ops = {
> > @@ -114,12 +142,8 @@ static void vgem_postclose(struct drm_device *dev, struct drm_file *file)
> >  	kfree(vfile);
> >  }
> >  
> > -/* ioctls */
> > -
> > -static struct drm_gem_object *vgem_gem_create(struct drm_device *dev,
> > -					      struct drm_file *file,
> > -					      unsigned int *handle,
> > -					      unsigned long size)
> > +static struct drm_vgem_gem_object *__vgem_gem_create(struct drm_device *dev,
> > +						unsigned long size)
> 
> I'm going to guess that doesn't line up anymore. If checkpatch isn't
> complaining, then sorry for the noise.

Because of the very long identifiers, perhaps a
nicer way to write this is like:

static struct drm_vgem_gem_object *
__vgen_gem_create(struct drm_device *dev, unsigned long size);

> > +static struct drm_gem_object *vgem_gem_create(struct drm_device *dev,
> > +					      struct drm_file *file,
> > +					      unsigned int *handle,
> > +					      unsigned long size)
> 
> Ditto.

etc...