Re: [PATCH V3] iio: declare struct to fix warning

[Daniel Baluta]

On Tue, Aug 4, 2015 at 11:17 AM, Pengyu Ma <pengyu.ma@xxxxxxxxxxxxx> wrote:
> 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@xxxxxxxxxxxxx>

Acked-by: Daniel Baluta <daniel.baluta@xxxxxxxxx>

> ---
>  include/linux/iio/trigger.h | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/include/linux/iio/trigger.h b/include/linux/iio/trigger.h
> index fa76c79..1c9e028 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.
> --
> 2.4.3
>
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