return 0;
 }
 
-static bool qxl_crtc_mode_fixup(struct drm_crtc *crtc,
-                                 const struct drm_display_mode *mode,
-                                 struct drm_display_mode *adjusted_mode)
-{
-       return true;
-}
-
 static void qxl_crtc_atomic_enable(struct drm_crtc *crtc,
                                   struct drm_crtc_state *old_state)
 {
 }
 
 static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
-       .mode_fixup = qxl_crtc_mode_fixup,
        .atomic_flush = qxl_crtc_atomic_flush,
        .atomic_enable = qxl_crtc_atomic_enable,
        .atomic_disable = qxl_crtc_atomic_disable,
        }
 }
 
-static int qxl_plane_atomic_check(struct drm_plane *plane,
-                                 struct drm_plane_state *state)
-{
-       return 0;
-}
-
 static void qxl_cursor_atomic_update(struct drm_plane *plane,
                                     struct drm_plane_state *old_state)
 {
 };
 
 static const struct drm_plane_helper_funcs qxl_cursor_helper_funcs = {
-       .atomic_check = qxl_plane_atomic_check,
        .atomic_update = qxl_cursor_atomic_update,
        .atomic_disable = qxl_cursor_atomic_disable,
        .prepare_fb = qxl_plane_prepare_fb,
        return r;
 }
 
-static void qxl_enc_dpms(struct drm_encoder *encoder, int mode)
-{
-       DRM_DEBUG("\n");
-}
-
-static void qxl_enc_prepare(struct drm_encoder *encoder)
-{
-       DRM_DEBUG("\n");
-}
-
-static void qxl_enc_commit(struct drm_encoder *encoder)
-{
-       DRM_DEBUG("\n");
-}
-
-static void qxl_enc_mode_set(struct drm_encoder *encoder,
-                               struct drm_display_mode *mode,
-                               struct drm_display_mode *adjusted_mode)
-{
-       DRM_DEBUG("\n");
-}
-
 static int qxl_conn_get_modes(struct drm_connector *connector)
 {
        unsigned pwidth = 1024;
 
 
 static const struct drm_encoder_helper_funcs qxl_enc_helper_funcs = {
-       .dpms = qxl_enc_dpms,
-       .prepare = qxl_enc_prepare,
-       .mode_set = qxl_enc_mode_set,
-       .commit = qxl_enc_commit,
 };
 
 static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = {
                         : connector_status_disconnected;
 }
 
-static int qxl_conn_set_property(struct drm_connector *connector,
-                                  struct drm_property *property,
-                                  uint64_t value)
-{
-       DRM_DEBUG("\n");
-       return 0;
-}
-
 static void qxl_conn_destroy(struct drm_connector *connector)
 {
        struct qxl_output *qxl_output =
        .dpms = drm_helper_connector_dpms,
        .detect = qxl_conn_detect,
        .fill_modes = drm_helper_probe_single_connector_modes,
-       .set_property = qxl_conn_set_property,
        .destroy = qxl_conn_destroy,
        .reset = drm_atomic_helper_connector_reset,
        .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,