linux-kernel - Re: [PATCH v3 02/12] ACPI: thermal: switch to use <linux/units.h> helpers

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Date:   Fri, 13 Dec 2019 13:03:19 +0900
From:   Akinobu Mita <akinobu.mita@...il.com>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Linux NVMe Mailinglist <linux-nvme@...ts.infradead.org>,
        linux-hwmon@...r.kernel.org, Linux PM <linux-pm@...r.kernel.org>,
        "open list:TI WILINK WIRELES..." <linux-wireless@...r.kernel.org>,
        linux-iio <linux-iio@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Sujith Thomas <sujith.thomas@...el.com>,
        Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>,
        Zhang Rui <rui.zhang@...el.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Amit Kucheria <amit.kucheria@...durent.com>,
        Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Keith Busch <kbusch@...nel.org>, Jens Axboe <axboe@...com>,
        Christoph Hellwig <hch@....de>,
        Sagi Grimberg <sagi@...mberg.me>
Subject: Re: [PATCH v3 02/12] ACPI: thermal: switch to use <linux/units.h> helpers

2019年12月12日(木) 0:29 Andy Shevchenko <andy.shevchenko@...il.com>:
>
> On Wed, Dec 11, 2019 at 4:39 PM Akinobu Mita <akinobu.mita@...il.com> wrote:
> >
> > This switches the ACPI thermal zone driver to use celsius_to_deci_kelvin(),
> > deci_kelvin_to_celsius(), and deci_kelvin_to_millicelsius_with_offset() in
> > <linux/units.h> instead of helpers in <linux/thermal.h>.
> >
> > This is preparation for centralizing the kelvin to/from Celsius conversion
> > helpers in <linux/units.h>.
>
> >  #include <linux/reboot.h>
> >  #include <linux/device.h>
> >  #include <linux/thermal.h>
>
> > +#include <linux/units.h>
>
> Can we try to keep *some* order, i.e. put this after acpi.h below?

OK.

> >  #include <linux/acpi.h>
> >  #include <linux/workqueue.h>
> >  #include <linux/uaccess.h>
>
> >                         } else if (crt > 0) {
> > -                               unsigned long crt_k = CELSIUS_TO_DECI_KELVIN(crt);
> > +                               unsigned long crt_k =
> > +                                       celsius_to_deci_kelvin(crt);
>
> It used to be one line, why do two?

Because this line over 80 characters.  This patch doesn't make this line
longer, but checkpatch.pl complains about it.

> >         pr_info(PREFIX "%s [%s] (%ld C)\n", acpi_device_name(device),
> > -               acpi_device_bid(device), DECI_KELVIN_TO_CELSIUS(tz->temperature));
> > +               acpi_device_bid(device),
> > +               deci_kelvin_to_celsius(tz->temperature));
>
> Ditto.

Same as above, checkpatch.pl complains about line over 80 characters.