From 87e4d63748796bcc68128f7287925701bc53d6b3 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Date: Tue, 26 May 2015 12:42:08 -0300
Subject: [PATCH] [media] DocBook: Improve xref check for undocumented ioctls

There are several badly documented undocumented ioctls.
Currently, it just generates an empty link. Instead of doing that,
only add references to the ones that exists, and add a warning
for all references that weren't found.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
 Documentation/DocBook/media/Makefile | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/Documentation/DocBook/media/Makefile b/Documentation/DocBook/media/Makefile
index 723932f85fb6..fdb0027f353c 100644
--- a/Documentation/DocBook/media/Makefile
+++ b/Documentation/DocBook/media/Makefile
@@ -305,10 +305,12 @@ $(MEDIA_OBJ_DIR)/media-entities.tmpl: $(MEDIA_OBJ_DIR)/v4l2.xml
 	@(								\
 	for ident in $(IOCTLS) ; do					\
 	  entity=`echo $$ident | tr _ -` ;				\
-	  id=`grep "<refname>$$ident" $(MEDIA_OBJ_DIR)/vidioc-*.xml $(MEDIA_OBJ_DIR)/media-ioc-*.xml | sed -r s,"^.*/(.*).xml.*","\1",` ; \
-	  echo "<!ENTITY $$entity \"<link"				\
+	  id=`grep -e "<refname>$$ident" -e "<section id=\"$$ident\"" $$(find $(MEDIA_SRC_DIR) -name *.xml -type f)| sed -r s,"^.*/(.*).xml.*","\1",` ; \
+	  if [ "$$id" != "" ]; then echo "<!ENTITY $$entity \"<link"	\
 	    "linkend='$$id'><constant>$$ident</constant></link>\">"	\
-	  >>$@ ;							\
+	  >>$@ ; else							\
+		echo "Warning: undocumented ioctl: $$ident. Please document it at the media DocBook!" >&2;	\
+	  fi;								\
 	done)
 	@(								\
 	echo -e "\n<!-- Defines -->") >>$@
-- 
2.20.1