linux-kernel - Re: [PATCH 08/11] staging: iio: tsl2x7x: remove unused variables from tsl2x7x_get

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Date:   Sat, 24 Mar 2018 13:41:19 +0000
From:   Jonathan Cameron <jic23@...nel.org>
To:     Brian Masney <masneyb@...tation.org>
Cc:     linux-iio@...r.kernel.org, gregkh@...uxfoundation.org,
        devel@...verdev.osuosl.org, knaack.h@....de, lars@...afoo.de,
        pmeerw@...erw.net, linux-kernel@...r.kernel.org,
        Jon.Brenner@....com
Subject: Re: [PATCH 08/11] staging: iio: tsl2x7x: remove unused variables
 from tsl2x7x_get_lux()

On Wed, 21 Mar 2018 06:29:09 -0400
Brian Masney <masneyb@...tation.org> wrote:

> tsl2x7x_get_lux() has a ch0lux and ch1lux variables that are not used
> so this patch removes them.
> 
> Signed-off-by: Brian Masney <masneyb@...tation.org>
Had to argue with this one ;)

Applied,

Thanks,

Jonathan

> ---
>  drivers/staging/iio/light/tsl2x7x.c | 11 -----------
>  1 file changed, 11 deletions(-)
> 
> diff --git a/drivers/staging/iio/light/tsl2x7x.c b/drivers/staging/iio/light/tsl2x7x.c
> index c1e441857226..1e38e8449f9e 100644
> --- a/drivers/staging/iio/light/tsl2x7x.c
> +++ b/drivers/staging/iio/light/tsl2x7x.c
> @@ -344,8 +344,6 @@ static int tsl2x7x_get_lux(struct iio_dev *indio_dev)
>  	struct tsl2x7x_lux *p;
>  	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
>  	int i, ret;
> -	u32 ch0lux = 0;
> -	u32 ch1lux = 0;
>  
>  	mutex_lock(&chip->als_mutex);
>  
> @@ -416,15 +414,6 @@ static int tsl2x7x_get_lux(struct iio_dev *indio_dev)
>  				   tsl2x7x_als_gain[chip->settings.als_gain]);
>  	}
>  
> -	/* note: lux is 31 bit max at this point */
> -	if (ch1lux > ch0lux) {
> -		dev_dbg(&chip->client->dev,
> -			"%s: ch1lux > ch0lux; returning last value\n",
> -			__func__);
> -		ret = chip->als_cur_info.lux;
> -		goto out_unlock;
> -	}
> -
>  	/* adjust for active time scale */
>  	if (chip->als_time_scale == 0)
>  		lux = 0;