On Fri, Dec 21, 2018 at 03:26:26PM -0800, Amir Mahdi Ghorbanian wrote:
> Replaced bool in struct with unsigned int bitfield to conserve space and
> more clearly define size of varibales
> 
> Signed-off-by: Amir Mahdi Ghorbanian <indigoomega...@gmail.com>
> ---

There was some discussion on this at Outreachy list:
https://groups.google.com/d/msg/outreachy-kernel/xpQAl-Gn8HA/yqcQRG_qBgAJ

I think unless you post some statistics about 'conserving' space, 
it is unlikely that maintainers will apply it.

This idea was originally given by Linus and that thread of discussion 
is worth reading too.

>  drivers/staging/iio/adc/ad7192.h | 14 +++++++-------
>  1 file changed, 7 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/staging/iio/adc/ad7192.h 
> b/drivers/staging/iio/adc/ad7192.h
> index 7433a43..7d3e62f 100644
> --- a/drivers/staging/iio/adc/ad7192.h
> +++ b/drivers/staging/iio/adc/ad7192.h
> @@ -35,13 +35,13 @@ struct ad7192_platform_data {
>       u16             vref_mv;
>       u8              clock_source_sel;
>       u32             ext_clk_hz;
> -     bool            refin2_en;
> -     bool            rej60_en;
> -     bool            sinc3_en;
> -     bool            chop_en;
> -     bool            buf_en;
> -     bool            unipolar_en;
> -     bool            burnout_curr_en;
> +     unsigned int    refin2_en : 1;
> +     unsigned int    rej60_en : 1;
> +     unsigned int    sinc3_en : 1;
> +     unsigned int    chop_en : 1;
> +     unsigned int    buf_en : 1;
> +     unsigned int    unipolar_en : 1;
> +     unsigned int    burnout_curr_en : 1;
>  };
>  
>  #endif /* IIO_ADC_AD7192_H_ */
> -- 
> 2.7.4
> 

Goodluck!

-- 
Himanshu Jha
Undergraduate Student
Department of Electronics & Communication
Guru Tegh Bahadur Institute of Technology

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