#define XRES_MAX  8192
 #define YRES_MAX  8192
 
-static void virtio_gpu_crtc_gamma_set(struct drm_crtc *crtc,
-                                     u16 *red, u16 *green, u16 *blue,
-                                     uint32_t start, uint32_t size)
-{
-       /* TODO */
-}
-
 static void
 virtio_gpu_hide_cursor(struct virtio_gpu_device *vgdev,
                       struct virtio_gpu_output *output)
 static const struct drm_crtc_funcs virtio_gpu_crtc_funcs = {
        .cursor_set2            = virtio_gpu_crtc_cursor_set,
        .cursor_move            = virtio_gpu_crtc_cursor_move,
-       .gamma_set              = virtio_gpu_crtc_gamma_set,
        .set_config             = drm_atomic_helper_set_config,
        .destroy                = drm_crtc_cleanup,
 
                return PTR_ERR(plane);
        drm_crtc_init_with_planes(dev, crtc, plane, NULL,
                                  &virtio_gpu_crtc_funcs, NULL);
-       drm_mode_crtc_set_gamma_size(crtc, 256);
        drm_crtc_helper_add(crtc, &virtio_gpu_crtc_helper_funcs);
        plane->crtc = crtc;