drm/nouveau: use embedded gem object

Drop drm_gem_object from nouveau_bo, use the
ttm_buffer_object.base instead.

Build tested only.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Christian König <christian.koenig@amd.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20190805140119.7337-7-kraxel@redhat.com

drivers/gpu/drm/nouveau/nouveau_prime.c

@@ -79,13 +79,13 @@ struct drm_gem_object *nouveau_gem_prime_import_sg_table(struct drm_device *dev,
 
 	/* Initialize the embedded gem-object. We return a single gem-reference
 	 * to the caller, instead of a normal nouveau_bo ttm reference. */
-	ret = drm_gem_object_init(dev, &nvbo->gem, nvbo->bo.mem.size);
+	ret = drm_gem_object_init(dev, &nvbo->bo.base, nvbo->bo.mem.size);
 	if (ret) {
 		nouveau_bo_ref(NULL, &nvbo);
 		return ERR_PTR(-ENOMEM);
 	}
 
-	return &nvbo->gem;
+	return &nvbo->bo.base;
 }
 
 int nouveau_gem_prime_pin(struct drm_gem_object *obj)