linux-kernel - Re: [PATCH 02/11] touchscreen: ad7877: Use octal permissions

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Date:   Sun, 22 Jul 2018 01:29:07 -0700
From:   Joe Perches <joe@...ches.com>
To:     dev-harsh1998 <harshitjain6751@...il.com>, trivial@...nel.org
Cc:     Michael Hennerich <michael.hennerich@...log.com>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Simon Budig <simon.budig@...nelconcepts.de>,
        Andi Shyti <andi@...zian.org>,
        Luca Ceresoli <luca@...aceresoli.net>,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 02/11] touchscreen: ad7877: Use octal permissions

On Sun, 2018-07-22 at 00:39 +0530, dev-harsh1998 wrote:
> WARNING: Symbolic permissions 'S_IRUGO' are not preferred. Consider using octal permissions '0444'.
> +static DEVICE_ATTR(name, S_IRUGO, name ## _show, NULL);
[]
> diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c
[]
> @@ -461,7 +461,7 @@ name ## _show(struct device *dev, struct device_attribute *attr, char *buf) \
>  		return v; \
>  	return sprintf(buf, "%u\n", (unsigned) v); \
>  } \
> -static DEVICE_ATTR(name, S_IRUGO, name ## _show, NULL);
> +static DEVICE_ATTR(name, 0444, name ## _show, NULL);

I believe this could be

static DEVICE_ATTR_RO(name)