linux-kernel - Re: [PATCH v5 1/2] pinctrl: use to octal permissions for debugfs files

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Message-ID: <CAHp75VdzbX7=n17xcdK6_fLwv5OmOePUkf3b0VZvpLDSZ947qQ@mail.gmail.com>
Date:   Sat, 13 Feb 2021 14:56:41 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Drew Fustini <drew@...gleboard.org>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Tony Lindgren <tony@...mide.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Pantelis Antoniou <pantelis.antoniou@...sulko.com>,
        Jason Kridner <jkridner@...gleboard.org>,
        Robert Nelson <robertcnelson@...gleboard.org>,
        Joe Perches <joe@...ches.com>,
        Dan Carpenter <dan.carpenter@...cle.com>
Subject: Re: [PATCH v5 1/2] pinctrl: use to octal permissions for debugfs files

On Sat, Feb 13, 2021 at 12:30 AM Drew Fustini <drew@...gleboard.org> wrote:
>
> Switch over pinctrl debugfs files to use octal permissions as they are
> preferred over symbolic permissions. Refer to commit f90774e1fd27
> ("checkpatch: look for symbolic permissions and suggest octal instead").
>
> Note: S_IFREG flag is added to the mode by __debugfs_create_file()
> in fs/debugfs/inode.c

I guess it also needs Suggested-by: Joe (IIRC he proposed to convert the rest).
Nevertheless,
Reviewed-by: Andy Shevchenko <andy.shevchenko@...il.com>
Thanks!


> Suggested-by: Andy Shevchenko <andy.shevchenko@...il.com>
> Signed-off-by: Drew Fustini <drew@...gleboard.org>
> ---
>  drivers/pinctrl/core.c    | 12 ++++++------
>  drivers/pinctrl/pinconf.c |  4 ++--
>  drivers/pinctrl/pinmux.c  |  4 ++--
>  3 files changed, 10 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
> index 3663d87f51a0..07458742bc0f 100644
> --- a/drivers/pinctrl/core.c
> +++ b/drivers/pinctrl/core.c
> @@ -1888,11 +1888,11 @@ static void pinctrl_init_device_debugfs(struct pinctrl_dev *pctldev)
>                         dev_name(pctldev->dev));
>                 return;
>         }
> -       debugfs_create_file("pins", S_IFREG | S_IRUGO,
> +       debugfs_create_file("pins", 0444,
>                             device_root, pctldev, &pinctrl_pins_fops);
> -       debugfs_create_file("pingroups", S_IFREG | S_IRUGO,
> +       debugfs_create_file("pingroups", 0444,
>                             device_root, pctldev, &pinctrl_groups_fops);
> -       debugfs_create_file("gpio-ranges", S_IFREG | S_IRUGO,
> +       debugfs_create_file("gpio-ranges", 0444,
>                             device_root, pctldev, &pinctrl_gpioranges_fops);
>         if (pctldev->desc->pmxops)
>                 pinmux_init_device_debugfs(device_root, pctldev);
> @@ -1914,11 +1914,11 @@ static void pinctrl_init_debugfs(void)
>                 return;
>         }
>
> -       debugfs_create_file("pinctrl-devices", S_IFREG | S_IRUGO,
> +       debugfs_create_file("pinctrl-devices", 0444,
>                             debugfs_root, NULL, &pinctrl_devices_fops);
> -       debugfs_create_file("pinctrl-maps", S_IFREG | S_IRUGO,
> +       debugfs_create_file("pinctrl-maps", 0444,
>                             debugfs_root, NULL, &pinctrl_maps_fops);
> -       debugfs_create_file("pinctrl-handles", S_IFREG | S_IRUGO,
> +       debugfs_create_file("pinctrl-handles", 0444,
>                             debugfs_root, NULL, &pinctrl_fops);
>  }
>
> diff --git a/drivers/pinctrl/pinconf.c b/drivers/pinctrl/pinconf.c
> index 02c075cc010b..d9d54065472e 100644
> --- a/drivers/pinctrl/pinconf.c
> +++ b/drivers/pinctrl/pinconf.c
> @@ -370,9 +370,9 @@ DEFINE_SHOW_ATTRIBUTE(pinconf_groups);
>  void pinconf_init_device_debugfs(struct dentry *devroot,
>                          struct pinctrl_dev *pctldev)
>  {
> -       debugfs_create_file("pinconf-pins", S_IFREG | S_IRUGO,
> +       debugfs_create_file("pinconf-pins", 0444,
>                             devroot, pctldev, &pinconf_pins_fops);
> -       debugfs_create_file("pinconf-groups", S_IFREG | S_IRUGO,
> +       debugfs_create_file("pinconf-groups", 0444,
>                             devroot, pctldev, &pinconf_groups_fops);
>  }
>
> diff --git a/drivers/pinctrl/pinmux.c b/drivers/pinctrl/pinmux.c
> index bab888fe3f8e..c651b2db0925 100644
> --- a/drivers/pinctrl/pinmux.c
> +++ b/drivers/pinctrl/pinmux.c
> @@ -676,9 +676,9 @@ DEFINE_SHOW_ATTRIBUTE(pinmux_pins);
>  void pinmux_init_device_debugfs(struct dentry *devroot,
>                          struct pinctrl_dev *pctldev)
>  {
> -       debugfs_create_file("pinmux-functions", S_IFREG | S_IRUGO,
> +       debugfs_create_file("pinmux-functions", 0444,
>                             devroot, pctldev, &pinmux_functions_fops);
> -       debugfs_create_file("pinmux-pins", S_IFREG | S_IRUGO,
> +       debugfs_create_file("pinmux-pins", 0444,
>                             devroot, pctldev, &pinmux_pins_fops);
>  }
>
> --
> 2.25.1
>


-- 
With Best Regards,
Andy Shevchenko