1 files changed, 6 insertions, 4 deletions

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 07e02c4bf5a8..214b7992a3aa 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -351,9 +351,11 @@ static int ttm_bo_handle_move_mem(struct ttm_buffer_object *bo,
 
 moved:
         if (bo->evicted) {
-                ret = bdev->driver->invalidate_caches(bdev, bo->mem.placement);
-                if (ret)
-                        pr_err("Can not flush read caches\n");
+                if (bdev->driver->invalidate_caches) {
+                        ret = bdev->driver->invalidate_caches(bdev, bo->mem.placement);
+                        if (ret)
+                                pr_err("Can not flush read caches\n");
+                }
                 bo->evicted = false;
         }
 
@@ -957,7 +959,7 @@ int ttm_bo_mem_space(struct ttm_buffer_object *bo,
 }
 EXPORT_SYMBOL(ttm_bo_mem_space);
 
-int ttm_bo_move_buffer(struct ttm_buffer_object *bo,
+static int ttm_bo_move_buffer(struct ttm_buffer_object *bo,
                         struct ttm_placement *placement,
                         bool interruptible,
                         bool no_wait_gpu)