From: Pengyu Ma <pengyu.ma@windriver.com>
Date: Tue, 4 Aug 2015 08:32:18 +0000 (+0800)
Subject: iio: declare struct to fix warning
X-Git-Tag: v4.3-rc1~158^2~139^2~30
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ad30bad3a5474f2585a7f2a35d4705c7f85210f3;p=karo-tx-linux.git

iio: declare struct to fix warning

When compile iio related driver the following warning shown:

include/linux/iio/trigger.h:35:34: warning: 'struct iio_trigger'
declared inside parameter list
  int (*set_trigger_state)(struct iio_trigger *trig, bool state);

include/linux/iio/trigger.h:38:18: warning: 'struct iio_dev'
declared inside parameter list
           struct iio_dev *indio_dev);

'struct iio_dev' and 'struct iio_trigger' was used before declaration,
forward declaration for these structs to fix warning.

Signed-off-by: Pengyu Ma <pengyu.ma@windriver.com>
Acked-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---

diff --git a/include/linux/iio/trigger.h b/include/linux/iio/trigger.h
index fa76c79a52a1..1c9e028e0d4a 100644
--- a/include/linux/iio/trigger.h
+++ b/include/linux/iio/trigger.h
@@ -18,6 +18,9 @@ struct iio_subirq {
 	bool enabled;
 };
 
+struct iio_dev;
+struct iio_trigger;
+
 /**
  * struct iio_trigger_ops - operations structure for an iio_trigger.
  * @owner:		used to monitor usage count of the trigger.