media: media-ioc-enum-entities/links.rst: document reserved fields

These structures have reserved fields that were never documented.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Acked-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Documentation/media/uapi/mediactl/media-ioc-enum-entities.rst

@@ -144,10 +144,21 @@ id's until they get an error.
 
     -  .. row 9
 
-       -  union
+       -  __u32
+
+       -  ``reserved[4]``
+
+       -
+       -
+       -  Reserved for future extensions. Drivers and applications must set
+          the array to zero.
 
     -  .. row 10
 
+       -  union
+
+    -  .. row 11
+
        -
        -  struct
 
@@ -156,7 +167,7 @@ id's until they get an error.
        -
        -  Valid for (sub-)devices that create a single device node.
 
-    -  .. row 11
+    -  .. row 12
 
        -
        -
@@ -166,7 +177,7 @@ id's until they get an error.
 
        -  Device node major number.
 
-    -  .. row 12
+    -  .. row 13
 
        -
        -
@@ -176,7 +187,7 @@ id's until they get an error.
 
        -  Device node minor number.
 
-    -  .. row 13
+    -  .. row 14
 
        -
        -  __u8

Documentation/media/uapi/mediactl/media-ioc-enum-links.rst

@@ -125,6 +125,15 @@ returned during the enumeration process.
 
        -  Pad flags, see :ref:`media-pad-flag` for more details.
 
+    -  .. row 4
+
+       -  __u32
+
+       -  ``reserved[2]``
+
+       -  Reserved for future extensions. Drivers and applications must set
+          the array to zero.
+
 
 
 .. c:type:: media_link_desc
@@ -161,6 +170,15 @@ returned during the enumeration process.
 
        -  Link flags, see :ref:`media-link-flag` for more details.
 
+    -  .. row 4
+
+       -  __u32
+
+       -  ``reserved[4]``
+
+       -  Reserved for future extensions. Drivers and applications must set
+          the array to zero.
+
 
 Return Value
 ============