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From:   "Rafael J. Wysocki" <rafael@kernel.org>
Date:   Thu, 8 Apr 2021 16:20:15 +0200
Message-ID: <CAJZ5v0hfHASSY_MM8WQ35hzyn6ohdGPX=F65Q-sB+_RMqTZgGQ@mail.gmail.com>
Subject: Re: [PATCH v2] ACPI: AC: fix some coding style issues
To:     Xiaofei Tan <tanxiaofei@huawei.com>
Cc:     "Rafael J. Wysocki" <rjw@rjwysocki.net>,
        Len Brown <lenb@kernel.org>,
        ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        linuxarm@openeuler.org
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On Sat, Mar 27, 2021 at 4:50 AM Xiaofei Tan <tanxiaofei@huawei.com> wrote:
>
> Fix some coding style issues reported by checkpatch.pl, including
> following types:
>
> ERROR: "foo * bar" should be "foo *bar"
> ERROR: code indent should use tabs where possible
> WARNING: Block comments use a trailing */ on a separate line
> WARNING: braces {} are not necessary for single statement blocks
> WARNING: void function return statements are not generally useful
> WARNING: CVS style keyword markers, these will _not_ be updated
>
> Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
> ---
>  drivers/acpi/ac.c | 28 ++++++++--------------------
>  1 file changed, 8 insertions(+), 20 deletions(-)
>
> diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
> index b86ee6e..b0cb662 100644
> --- a/drivers/acpi/ac.c
> +++ b/drivers/acpi/ac.c
> @@ -1,6 +1,6 @@
>  // SPDX-License-Identifier: GPL-2.0-or-later
>  /*
> - *  acpi_ac.c - ACPI AC Adapter Driver ($Revision: 27 $)
> + *  acpi_ac.c - ACPI AC Adapter Driver (Revision: 27)
>   *
>   *  Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
>   *  Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
> @@ -78,17 +78,14 @@ static struct acpi_driver acpi_ac_driver = {
>  struct acpi_ac {
>         struct power_supply *charger;
>         struct power_supply_desc charger_desc;
> -       struct acpi_device * device;
> +       struct acpi_device *device;
>         unsigned long long state;
>         struct notifier_block battery_nb;
>  };
>
>  #define to_acpi_ac(x) power_supply_get_drvdata(x)
>
> -/* --------------------------------------------------------------------------
> -                               AC Adapter Management
> -   -------------------------------------------------------------------------- */
> -
> +/* AC Adapter Management */
>  static int acpi_ac_get_state(struct acpi_ac *ac)
>  {
>         acpi_status status = AE_OK;
> @@ -109,9 +106,7 @@ static int acpi_ac_get_state(struct acpi_ac *ac)
>         return 0;
>  }
>
> -/* --------------------------------------------------------------------------
> -                            sysfs I/F
> -   -------------------------------------------------------------------------- */
> +/* sysfs I/F */
>  static int get_ac_property(struct power_supply *psy,
>                            enum power_supply_property psp,
>                            union power_supply_propval *val)
> @@ -138,10 +133,7 @@ static enum power_supply_property ac_props[] = {
>         POWER_SUPPLY_PROP_ONLINE,
>  };
>
> -/* --------------------------------------------------------------------------
> -                                   Driver Model
> -   -------------------------------------------------------------------------- */
> -
> +/* Driver Model */
>  static void acpi_ac_notify(struct acpi_device *device, u32 event)
>  {
>         struct acpi_ac *ac = acpi_driver_data(device);
> @@ -174,8 +166,6 @@ static void acpi_ac_notify(struct acpi_device *device, u32 event)
>                 acpi_notifier_call_chain(device, event, (u32) ac->state);
>                 kobject_uevent(&ac->charger->dev.kobj, KOBJ_CHANGE);
>         }
> -
> -       return;
>  }
>
>  static int acpi_ac_battery_notify(struct notifier_block *nb,
> @@ -282,9 +272,8 @@ static int acpi_ac_add(struct acpi_device *device)
>         ac->battery_nb.notifier_call = acpi_ac_battery_notify;
>         register_acpi_notifier(&ac->battery_nb);
>  end:
> -       if (result) {
> +       if (result)
>                 kfree(ac);
> -       }
>
>         return result;
>  }
> @@ -293,7 +282,7 @@ static int acpi_ac_add(struct acpi_device *device)
>  static int acpi_ac_resume(struct device *dev)
>  {
>         struct acpi_ac *ac;
> -       unsigned old_state;
> +       unsigned int old_state;
>
>         if (!dev)
>                 return -EINVAL;
> @@ -352,9 +341,8 @@ static int __init acpi_ac_init(void)
>         }
>
>         result = acpi_bus_register_driver(&acpi_ac_driver);
> -       if (result < 0) {
> +       if (result < 0)
>                 return -ENODEV;
> -       }
>
>         return 0;
>  }
> --

Applied as 5.13 material, thanks!