spin_unlock(&adev->mm_stats.lock);
 }
 
-static int amdgpu_cs_bo_validate(struct amdgpu_cs_parser *p,
-                                struct amdgpu_bo *bo)
+static int amdgpu_cs_bo_validate(void *param, struct amdgpu_bo *bo)
 {
        struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
+       struct amdgpu_cs_parser *p = param;
        struct ttm_operation_ctx ctx = {
                .interruptible = true,
                .no_wait_gpu = false,
        return r;
 }
 
-static int amdgpu_cs_validate(void *param, struct amdgpu_bo *bo)
-{
-       struct amdgpu_cs_parser *p = param;
-       int r;
-
-       r = amdgpu_cs_bo_validate(p, bo);
-       if (r)
-               return r;
-
-       if (bo->shadow)
-               r = amdgpu_cs_bo_validate(p, bo->shadow);
-
-       return r;
-}
-
 static int amdgpu_cs_list_validate(struct amdgpu_cs_parser *p,
                            struct list_head *validated)
 {
                                                     lobj->user_pages);
                }
 
-               r = amdgpu_cs_validate(p, bo);
+               r = amdgpu_cs_bo_validate(p, bo);
                if (r)
                        return r;
 
        p->bytes_moved_vis = 0;
 
        r = amdgpu_vm_validate_pt_bos(p->adev, &fpriv->vm,
-                                     amdgpu_cs_validate, p);
+                                     amdgpu_cs_bo_validate, p);
        if (r) {
                DRM_ERROR("amdgpu_vm_validate_pt_bos() failed.\n");
                goto error_validate;