virtio_gpu_driver_open  202 drivers/gpu/drm/virtio/virtgpu_drv.c 	.open = virtio_gpu_driver_open,
virtio_gpu_driver_open  227 drivers/gpu/drm/virtio/virtgpu_drv.h int virtio_gpu_driver_open(struct drm_device *dev, struct drm_file *file);