Enable cross-reference warnings for demux header.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 Documentation/userspace-api/media/dvb/headers.rst | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/userspace-api/media/dvb/headers.rst b/Documentation/userspace-api/media/dvb/headers.rst
index 3c492ae109ae..6d69622bf1e0 100644
--- a/Documentation/userspace-api/media/dvb/headers.rst
+++ b/Documentation/userspace-api/media/dvb/headers.rst
@@ -24,6 +24,7 @@ Demux
     :generate-cross-refs:
     :exception-file: dmx.h.rst.exceptions
     :toc:
+    :warn-broken:
 
 Conditional Access
 ==================
-- 
2.51.0