linux-kernel - Re: [PATCH] staging: iio: frequency: ad9834: Remove unnecessary parentheses

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Date:   Sun, 7 Apr 2019 11:43:05 +0100
From:   Jonathan Cameron <jic23@...nel.org>
To:     Melissa Wen <melissa.srw@...il.com>
Cc:     Lars-Peter Clausen <lars@...afoo.de>,
        Michael Hennerich <Michael.Hennerich@...log.com>,
        Stefan Popa <stefan.popa@...log.com>,
        Hartmut Knaack <knaack.h@....de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-iio@...r.kernel.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org, kernel-usp@...glegroups.com
Subject: Re: [PATCH] staging: iio: frequency: ad9834: Remove unnecessary
 parentheses

On Tue, 2 Apr 2019 17:18:54 -0300
Melissa Wen <melissa.srw@...il.com> wrote:

> Remove unneeded parentheses around the arguments of ||. This reduces
> clutter and code behave in the same way. Change suggested by
> checkpatch.pl.
> 
> CHECK: Unnecessary parentheses around 'st->devid == ID_AD9833'
> CHECK: Unnecessary parentheses around 'st->devid == ID_AD9837'
> 
> Signed-off-by: Melissa Wen <melissa.srw@...il.com>
This isn't one I feel strongly about, but it'll get rid of the warning
so is useful in the sense of cleaning up what we have to look at there!

Applied to the togreg branch of iio.git and pushed out as testing for
the autobuilders to play with it.

Thanks,

Jonathan

> ---
>  drivers/staging/iio/frequency/ad9834.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/staging/iio/frequency/ad9834.c b/drivers/staging/iio/frequency/ad9834.c
> index 0b0287503fb4..9cc6e751b479 100644
> --- a/drivers/staging/iio/frequency/ad9834.c
> +++ b/drivers/staging/iio/frequency/ad9834.c
> @@ -286,7 +286,7 @@ ssize_t ad9834_show_out0_wavetype_available(struct device *dev,
>  	struct ad9834_state *st = iio_priv(indio_dev);
>  	char *str;
>  
> -	if ((st->devid == ID_AD9833) || (st->devid == ID_AD9837))
> +	if (st->devid == ID_AD9833 || st->devid == ID_AD9837)
>  		str = "sine triangle square";
>  	else if (st->control & AD9834_OPBITEN)
>  		str = "sine";