drm/amdgpu: remove amdgpu_fence_ref/unref

Just move the remaining users to fence_put/get.

Signed-off-by: Christian König <[e-mail]>
Reviewed-by: Alex Deucher <[e-mail]>

drivers/gpu/drm/amd/amdgpu/amdgpu.h

···
 int amdgpu_fence_wait_empty(struct amdgpu_ring *ring);
 unsigned amdgpu_fence_count_emitted(struct amdgpu_ring *ring);
 
-struct amdgpu_fence *amdgpu_fence_ref(struct amdgpu_fence *fence);
-void amdgpu_fence_unref(struct amdgpu_fence **fence);
-
 bool amdgpu_fence_need_sync(struct amdgpu_fence *fence,
 			    struct amdgpu_ring *ring);
 void amdgpu_fence_note_sync(struct amdgpu_fence *fence,

drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c

···
 }
 
 /**
- * amdgpu_fence_ref - take a ref on a fence
- *
- * @fence: amdgpu fence object
- *
- * Take a reference on a fence (all asics).
- * Returns the fence.
- */
-struct amdgpu_fence *amdgpu_fence_ref(struct amdgpu_fence *fence)
-{
-	fence_get(&fence->base);
-	return fence;
-}
-
-/**
- * amdgpu_fence_unref - remove a ref on a fence
- *
- * @fence: amdgpu fence object
- *
- * Remove a reference on a fence (all asics).
- */
-void amdgpu_fence_unref(struct amdgpu_fence **fence)
-{
-	struct amdgpu_fence *tmp = *fence;
-
-	*fence = NULL;
-	if (tmp)
-		fence_put(&tmp->base);
-}
-
-/**
  * amdgpu_fence_count_emitted - get the count of emitted fences
  *
  * @ring: ring the fence is associated with

drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c

···
 {
 	amdgpu_sync_free(adev, &ib->sync, &ib->fence->base);
 	amdgpu_sa_bo_free(adev, &ib->sa_bo, &ib->fence->base);
-	amdgpu_fence_unref(&ib->fence);
+	if (ib->fence)
+		fence_put(&ib->fence->base);
 }
 
 /**

drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c

···
 		goto err;
 	}
 
-	fence = amdgpu_fence_ref(job->ibs[job->num_ibs - 1].fence);
+	fence = job->ibs[job->num_ibs - 1].fence;
+	fence_get(&fence->base);
 
 err:
 	if (job->free_job)