[PATCH v2 2/2] drm/i915: Object w/o backing stroage is banned by -ENXIO

[Zhang, Tina]

> -----Original Message-----
> From: Joonas Lahtinen [mailto:joonas.lahtinen at linux.intel.com]
> Sent: Monday, November 6, 2017 6:57 PM
> To: Zhang, Tina <tina.zhang at intel.com>; zhenyuw at linux.intel.com; Wang, Zhi
> A <zhi.a.wang at intel.com>; daniel at ffwll.ch; chris at chris-wilson.co.uk
> Cc: intel-gfx at lists.freedesktop.org; intel-gvt-dev at lists.freedesktop.org
> Subject: Re: [PATCH v2 2/2] drm/i915: Object w/o backing stroage is banned by
> -ENXIO
> 
> Hi Tina,
> 
> Please send this patch alone (or in the beginning of your series), so it can be
> merged already.
> 
> That'll save you the effort of carrying this patch.
Thank you very much :)

BR,
Tina
> 
> Regards, Joonas
> 
> On Wed, 2017-11-01 at 17:22 +0800, Tina Zhang wrote:
> > -ENXIO should be returned when operations are banned from changing
> > backing storage of objects without backing storage.
> >
> > v2:
> > - update the patch description and subject to just mention objects w/o
> >   backing storage, instead of "GEM proxy". (Joonas)
> >
> > Signed-off-by: Tina Zhang <tina.zhang at intel.com>
> > Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
> > Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
> > ---
> >  drivers/gpu/drm/i915/i915_gem.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/gpu/drm/i915/i915_gem.c
> > b/drivers/gpu/drm/i915/i915_gem.c index 13bc18d..e85721c 100644
> > --- a/drivers/gpu/drm/i915/i915_gem.c
> > +++ b/drivers/gpu/drm/i915/i915_gem.c
> > @@ -1713,7 +1713,7 @@ i915_gem_mmap_ioctl(struct drm_device *dev,
> void *data,
> >  	 */
> >  	if (!obj->base.filp) {
> >  		i915_gem_object_put(obj);
> > -		return -EINVAL;
> > +		return -ENXIO;
> >  	}
> >
> >  	addr = vm_mmap(obj->base.filp, 0, args->size,
> --
> Joonas Lahtinen
> Open Source Technology Center
> Intel Corporation