diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h
index 4cf21d6e9cfd..2bfe3baa63f4 100644
--- a/include/linux/vdpa.h
+++ b/include/linux/vdpa.h
@@ -312,7 +312,9 @@ struct vdpa_map_file {
  *				@idx: virtqueue index
  *				Returns the affinity mask
  * @set_group_asid:		Set address space identifier for a
- *				virtqueue group (optional)
+ *				virtqueue group (optional).  Caller must
+ *				prevent this from being executed concurrently
+ *				with set_status.
  *				@vdev: vdpa device
  *				@group: virtqueue group
  *				@asid: address space id for this group