linux-kernel - Re: [PATCH 1/6] Staging: iio: addac: Prefer using the BIT macro

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Message-ID: <55F3F604.3030008@kernel.org>
Date:	Sat, 12 Sep 2015 10:53:08 +0100
From:	Jonathan Cameron <jic23@...nel.org>
To:	Shraddha Barke <shraddha.6596@...il.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Julia Lawall <julia.lawall@...6.fr>,
	Hartmut Knaack <knaack.h@....de>,
	Andreas Dilger <andreas.dilger@...el.com>
Cc:	Ian Abbott <abbotti@....co.uk>, linux-iio@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/6] Staging: iio: addac: Prefer using the BIT macro

On 10/09/15 17:30, Shraddha Barke wrote:
> This patch replaces bit shifting on 1 with the BIT(x) macro.
> 
> This was done with coccinelle:
> 
> @@ int g; @@
> 
> -(1 << g)
> +BIT(g)
> 
> Signed-off-by: Shraddha Barke <shraddha.6596@...il.com>
Good straight forward cases.  Applied to the togreg branch of iio.git.
Will be initially pushed out as testing for the autobuilders to play with
it.

Thanks,

Jonathan
> ---
>  drivers/staging/iio/addac/adt7316.c | 14 +++++++-------
>  1 file changed, 7 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/staging/iio/addac/adt7316.c b/drivers/staging/iio/addac/adt7316.c
> index 5b11b42..a1dd745 100644
> --- a/drivers/staging/iio/addac/adt7316.c
> +++ b/drivers/staging/iio/addac/adt7316.c
> @@ -1756,43 +1756,43 @@ static irqreturn_t adt7316_event_handler(int irq, void *private)
>  			stat1 &= 0x1F;
>  
>  		time = iio_get_time_ns();
> -		if (stat1 & (1 << 0))
> +		if (stat1 & BIT(0))
>  			iio_push_event(indio_dev,
>  				       IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
>  							    IIO_EV_TYPE_THRESH,
>  							    IIO_EV_DIR_RISING),
>  				       time);
> -		if (stat1 & (1 << 1))
> +		if (stat1 & BIT(1))
>  			iio_push_event(indio_dev,
>  				       IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
>  							    IIO_EV_TYPE_THRESH,
>  							    IIO_EV_DIR_FALLING),
>  				       time);
> -		if (stat1 & (1 << 2))
> +		if (stat1 & BIT(2))
>  			iio_push_event(indio_dev,
>  				       IIO_UNMOD_EVENT_CODE(IIO_TEMP, 1,
>  							    IIO_EV_TYPE_THRESH,
>  							    IIO_EV_DIR_RISING),
>  				       time);
> -		if (stat1 & (1 << 3))
> +		if (stat1 & BIT(3))
>  			iio_push_event(indio_dev,
>  				       IIO_UNMOD_EVENT_CODE(IIO_TEMP, 1,
>  							    IIO_EV_TYPE_THRESH,
>  							    IIO_EV_DIR_FALLING),
>  				       time);
> -		if (stat1 & (1 << 5))
> +		if (stat1 & BIT(5))
>  			iio_push_event(indio_dev,
>  				       IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE, 1,
>  							    IIO_EV_TYPE_THRESH,
>  							    IIO_EV_DIR_EITHER),
>  				       time);
> -		if (stat1 & (1 << 6))
> +		if (stat1 & BIT(6))
>  			iio_push_event(indio_dev,
>  				       IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE, 2,
>  							    IIO_EV_TYPE_THRESH,
>  							    IIO_EV_DIR_EITHER),
>  				       time);
> -		if (stat1 & (1 << 7))
> +		if (stat1 & BIT(7))
>  			iio_push_event(indio_dev,
>  				       IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE, 3,
>  							    IIO_EV_TYPE_THRESH,
> 

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