[PATCH v2] virtgpu: don't reset on shutdown

[Gerd Hoffmann]

> > diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.c b/drivers/gpu/drm/virtio/virtgpu_drv.c
> > index e32e680c7197..71c6ccad4b99 100644
> > --- a/drivers/gpu/drm/virtio/virtgpu_drv.c
> > +++ b/drivers/gpu/drm/virtio/virtgpu_drv.c
> > @@ -130,10 +130,10 @@ static void virtio_gpu_remove(struct virtio_device *vdev)
> >   static void virtio_gpu_shutdown(struct virtio_device *vdev)
> >   {
> > -	/*
> > -	 * drm does its own synchronization on shutdown.
> > -	 * Do nothing here, opt out of device reset.
> > -	 */
> > +	struct drm_device *dev = vdev->priv;
> > +
> > +	/* stop talking to the device */
> > +	drm_dev_unplug(dev);
> >   }
> 
> It's the correct approach but also requires drm_dev_enter() and
> drm_dev_exit() around all of the driver's hardware access.

The functions adding requests to the virtio rings use
drm_dev_enter+drm_dev_exit already.

take care,
  Gerd