From: Hans Verkuil <hans.verkuil@xxxxxxxxx>
The notify function is a void function, yet the v4l2_subdev_notify
define uses it in a ? : construction, which causes sparse warnings.
Replace the define by a static inline function and move it to
v4l2-device.h, which is where it belongs since it needs to know the
v4l2_device struct. This wasn't a problem when it was a define, but
as a static inline function this no longer compiles in v4l2-subdev.h.
Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
---
include/media/v4l2-device.h | 8 ++++++++
include/media/v4l2-subdev.h | 5 -----
2 files changed, 8 insertions(+), 5 deletions(-)
diff --git a/include/media/v4l2-device.h b/include/media/v4l2-device.h
index c9b1593..ffb69da 100644
--- a/include/media/v4l2-device.h
+++ b/include/media/v4l2-device.h
@@ -120,6 +120,14 @@ void v4l2_device_unregister_subdev(struct v4l2_subdev *sd);
int __must_check
v4l2_device_register_subdev_nodes(struct v4l2_device *v4l2_dev);
+/* Send a notification to v4l2_device. */
+static inline void v4l2_subdev_notify(struct v4l2_subdev *sd,
+ unsigned int notification, void *arg)
+{
+ if (sd && sd->v4l2_dev && sd->v4l2_dev->notify)
+ sd->v4l2_dev->notify(sd, notification, arg);
+}
+
/* Iterate over all subdevs. */
#define v4l2_device_for_each_subdev(sd, v4l2_dev) \
list_for_each_entry(sd, &(v4l2_dev)->subdevs, list)
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index 28f4d8c..ee1cb2d 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -691,11 +691,6 @@ void v4l2_subdev_init(struct v4l2_subdev *sd,
(!(sd) ? -ENODEV : (((sd)->ops->o && (sd)->ops->o->f) ? \
(sd)->ops->o->f((sd) , ##args) : -ENOIOCTLCMD))
-/* Send a notification to v4l2_device. */
-#define v4l2_subdev_notify(sd, notification, arg) \
- ((!(sd) || !(sd)->v4l2_dev || !(sd)->v4l2_dev->notify) ? -ENODEV : \
- (sd)->v4l2_dev->notify((sd), (notification), (arg)))
-
#define v4l2_subdev_has_op(sd, o, f) \
((sd)->ops->o && (sd)->ops->o->f)
--
1.9.0
--
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