linux-kernel - Re: [PATCH v2] iio:dummy: Replace S

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Message-ID: <alpine.DEB.2.20.1802212101160.2292@hadrien>
Date:   Wed, 21 Feb 2018 21:01:46 +0100 (CET)
From:   Julia Lawall <julia.lawall@...6.fr>
To:     Rodrigo Siqueira <rodrigosiqueiramelo@...il.com>
cc:     Jonathan Cameron <jic23@...nel.org>,
        Hartmut Knaack <knaack.h@....de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        daniel.baluta@....com, linux-iio@...r.kernel.org,
        kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] iio:dummy: Replace S_IWUSR by 0200



On Wed, 21 Feb 2018, Rodrigo Siqueira wrote:

> This patch fixes the checkpatch.pl warning:
>
> drivers/iio/dummy/iio_dummy_evgen.c:151: WARNING: Symbolic permissions
> 'S_IWUSR' are not preferred. Consider using octal permissions '0200'.

I haven't studied up on it in great detail, but isn't there a more
specific macro that doesn't need a permission argument at all?

julia

> ...
>
> Signed-off-by: Rodrigo Siqueira <rodrigosiqueiramelo@...il.com>
> ---
> Changes in v2:
>   - Make the commit message clearer.
>   - Fix just a single part of the code.
>
>  drivers/iio/dummy/iio_dummy_evgen.c | 20 ++++++++++----------
>  1 file changed, 10 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/iio/dummy/iio_dummy_evgen.c b/drivers/iio/dummy/iio_dummy_evgen.c
> index efd0005f59b4..16ea547f79f0 100644
> --- a/drivers/iio/dummy/iio_dummy_evgen.c
> +++ b/drivers/iio/dummy/iio_dummy_evgen.c
> @@ -148,16 +148,16 @@ static ssize_t iio_evgen_poke(struct device *dev,
>  	return len;
>  }
>
> -static IIO_DEVICE_ATTR(poke_ev0, S_IWUSR, NULL, &iio_evgen_poke, 0);
> -static IIO_DEVICE_ATTR(poke_ev1, S_IWUSR, NULL, &iio_evgen_poke, 1);
> -static IIO_DEVICE_ATTR(poke_ev2, S_IWUSR, NULL, &iio_evgen_poke, 2);
> -static IIO_DEVICE_ATTR(poke_ev3, S_IWUSR, NULL, &iio_evgen_poke, 3);
> -static IIO_DEVICE_ATTR(poke_ev4, S_IWUSR, NULL, &iio_evgen_poke, 4);
> -static IIO_DEVICE_ATTR(poke_ev5, S_IWUSR, NULL, &iio_evgen_poke, 5);
> -static IIO_DEVICE_ATTR(poke_ev6, S_IWUSR, NULL, &iio_evgen_poke, 6);
> -static IIO_DEVICE_ATTR(poke_ev7, S_IWUSR, NULL, &iio_evgen_poke, 7);
> -static IIO_DEVICE_ATTR(poke_ev8, S_IWUSR, NULL, &iio_evgen_poke, 8);
> -static IIO_DEVICE_ATTR(poke_ev9, S_IWUSR, NULL, &iio_evgen_poke, 9);
> +static IIO_DEVICE_ATTR(poke_ev0, 0200, NULL, &iio_evgen_poke, 0);
> +static IIO_DEVICE_ATTR(poke_ev1, 0200, NULL, &iio_evgen_poke, 1);
> +static IIO_DEVICE_ATTR(poke_ev2, 0200, NULL, &iio_evgen_poke, 2);
> +static IIO_DEVICE_ATTR(poke_ev3, 0200, NULL, &iio_evgen_poke, 3);
> +static IIO_DEVICE_ATTR(poke_ev4, 0200, NULL, &iio_evgen_poke, 4);
> +static IIO_DEVICE_ATTR(poke_ev5, 0200, NULL, &iio_evgen_poke, 5);
> +static IIO_DEVICE_ATTR(poke_ev6, 0200, NULL, &iio_evgen_poke, 6);
> +static IIO_DEVICE_ATTR(poke_ev7, 0200, NULL, &iio_evgen_poke, 7);
> +static IIO_DEVICE_ATTR(poke_ev8, 0200, NULL, &iio_evgen_poke, 8);
> +static IIO_DEVICE_ATTR(poke_ev9, 0200, NULL, &iio_evgen_poke, 9);
>
>  static struct attribute *iio_evgen_attrs[] = {
>  	&iio_dev_attr_poke_ev0.dev_attr.attr,
> --
> 2.16.2
>
> --
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