Some enum/struct fields don't contain C domain references.
Add them to avoid broken xrefs.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 Documentation/userspace-api/media/v4l/buffer.rst           | 2 ++
 Documentation/userspace-api/media/v4l/vidioc-queryctrl.rst | 6 ++++++
 2 files changed, 8 insertions(+)

diff --git a/Documentation/userspace-api/media/v4l/buffer.rst b/Documentation/userspace-api/media/v4l/buffer.rst
index 856874341882..94dc2719e907 100644
--- a/Documentation/userspace-api/media/v4l/buffer.rst
+++ b/Documentation/userspace-api/media/v4l/buffer.rst
@@ -667,6 +667,8 @@ Buffer Flags
 	exposure of the frame has begun. This is only valid for the
 	``V4L2_BUF_TYPE_VIDEO_CAPTURE`` buffer type.
 
+.. c:enum:: v4l2_memory
+
 .. raw:: latex
 
     \normalsize
diff --git a/Documentation/userspace-api/media/v4l/vidioc-queryctrl.rst b/Documentation/userspace-api/media/v4l/vidioc-queryctrl.rst
index a8d84806a3c0..c8baa9430c14 100644
--- a/Documentation/userspace-api/media/v4l/vidioc-queryctrl.rst
+++ b/Documentation/userspace-api/media/v4l/vidioc-queryctrl.rst
@@ -100,6 +100,8 @@ See also the examples in :ref:`control`.
 
 .. _v4l2-queryctrl:
 
+.. c:struct:: v4l2_queryctrl
+
 .. cssclass:: longtable
 
 .. flat-table:: struct v4l2_queryctrl
@@ -180,6 +182,8 @@ See also the examples in :ref:`control`.
 
 .. cssclass:: longtable
 
+.. c:struct:: v4l2_query_ext_ctrl
+
 .. flat-table:: struct v4l2_query_ext_ctrl
     :header-rows:  0
     :stub-columns: 0
@@ -278,6 +282,8 @@ See also the examples in :ref:`control`.
 
 .. _v4l2-querymenu:
 
+.. c:struct:: v4l2_querymenu
+
 .. flat-table:: struct v4l2_querymenu
     :header-rows:  0
     :stub-columns: 0
-- 
2.51.0