return crtc->timeline_name;
 }
 
-static bool drm_crtc_fence_enable_signaling(struct dma_fence *fence)
-{
-       return true;
-}
-
 static const struct dma_fence_ops drm_crtc_fence_ops = {
        .get_driver_name = drm_crtc_fence_get_driver_name,
        .get_timeline_name = drm_crtc_fence_get_timeline_name,
-       .enable_signaling = drm_crtc_fence_enable_signaling,
-       .wait = dma_fence_default_wait,
 };
 
 struct dma_fence *drm_crtc_create_fence(struct drm_crtc *crtc)
 
        .get_driver_name = drm_syncobj_null_fence_get_name,
        .get_timeline_name = drm_syncobj_null_fence_get_name,
        .enable_signaling = drm_syncobj_null_fence_enable_signaling,
-       .wait = dma_fence_default_wait,
        .release = NULL,
 };
 
 
        return (const char *)fence->sched->name;
 }
 
-static bool drm_sched_fence_enable_signaling(struct dma_fence *f)
-{
-       return true;
-}
-
 /**
  * drm_sched_fence_free - free up the fence memory
  *
 const struct dma_fence_ops drm_sched_fence_ops_scheduled = {
        .get_driver_name = drm_sched_fence_get_driver_name,
        .get_timeline_name = drm_sched_fence_get_timeline_name,
-       .enable_signaling = drm_sched_fence_enable_signaling,
-       .signaled = NULL,
-       .wait = dma_fence_default_wait,
        .release = drm_sched_fence_release_scheduled,
 };
 
 const struct dma_fence_ops drm_sched_fence_ops_finished = {
        .get_driver_name = drm_sched_fence_get_driver_name,
        .get_timeline_name = drm_sched_fence_get_timeline_name,
-       .enable_signaling = drm_sched_fence_enable_signaling,
-       .signaled = NULL,
-       .wait = dma_fence_default_wait,
        .release = drm_sched_fence_release_finished,
 };