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

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Date:	Sat, 8 Aug 2015 12:28:11 +0100
From:	Jonathan Cameron <jic23@...nel.org>
To:	Daniel Baluta <daniel.baluta@...il.com>,
	Pengyu Ma <pengyu.ma@...driver.com>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"linux-iio@...r.kernel.org" <linux-iio@...r.kernel.org>
Subject: Re: [PATCH V3] iio: declare struct to fix warning

On 04/08/15 09:30, Daniel Baluta wrote:
> On Tue, Aug 4, 2015 at 11:17 AM, Pengyu Ma <pengyu.ma@...driver.com> 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@...driver.com>
> 
> Acked-by: Daniel Baluta <daniel.baluta@...el.com>
No need send a v4 just to add the acked-by inline. I'm happy to do that
as I apply.

Thanks,

Jonathan
> 
>> ---
>>  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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