[PATCH 01/24] media: v4l2-dev.h: add kernel-doc to two macros

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There are two macros at v4l2-dev.h that aren't documented.

Document them, for completeness.

Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx>
---
 include/media/v4l2-dev.h | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h
index e657614521e3..de1a1453cfd9 100644
--- a/include/media/v4l2-dev.h
+++ b/include/media/v4l2-dev.h
@@ -260,9 +260,21 @@ struct video_device
 	struct mutex *lock;
 };
 
-#define media_entity_to_video_device(__e) \
-	container_of(__e, struct video_device, entity)
-/* dev to video-device */
+/**
+ * media_entity_to_video_device - Returns a &struct video_device from
+ * 	the &struct media_entity embedded on it.
+ *
+ * @entity: pointer to &struct media_entity
+ */
+#define media_entity_to_video_device(entity) \
+	container_of(entity, struct video_device, entity)
+
+/**
+ * media_entity_to_video_device - Returns a &struct video_device from
+ * 	the &struct device embedded on it.
+ *
+ * @cd: pointer to &struct device
+ */
 #define to_video_device(cd) container_of(cd, struct video_device, dev)
 
 /**
-- 
2.13.6




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