--- zzzz-none-000/linux-3.10.107/Documentation/DocBook/media/v4l/vidioc-enum-framesizes.xml	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/Documentation/DocBook/media/v4l/vidioc-enum-framesizes.xml	2021-02-04 17:41:59.000000000 +0000
@@ -223,7 +223,8 @@
 	    <entry>__u32</entry>
 	    <entry><structfield>reserved[2]</structfield></entry>
 	    <entry></entry>
-	    <entry>Reserved space for future use.</entry>
+	    <entry>Reserved space for future use. Must be zeroed by drivers and
+	    applications.</entry>
 	  </row>
 	</tbody>
       </tgroup>