linux-kernel - Re: [PATCH 8/8] thermal: remove kelvin to/from Celsius conversion helpers from <linux/thermal.h>

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Message-ID: <CAHp75VfJ_+aTYWM6JXtENAD1=DbZwTaVELjDwP=aXnxtR_bHPQ@mail.gmail.com>
Date:   Mon, 25 Nov 2019 21:08:54 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Akinobu Mita <akinobu.mita@...il.com>
Cc:     Linux NVMe Mailinglist <linux-nvme@...ts.infradead.org>,
        linux-hwmon@...r.kernel.org, Linux PM <linux-pm@...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>,
        Eduardo Valentin <edubezval@...il.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 8/8] thermal: remove kelvin to/from Celsius conversion
 helpers from <linux/thermal.h>

On Mon, Nov 25, 2019 at 4:40 PM Akinobu Mita <akinobu.mita@...il.com> wrote:
> 2019年11月25日(月) 5:00 Andy Shevchenko <andy.shevchenko@...il.com>:
> > On Sun, Nov 24, 2019 at 4:09 PM Akinobu Mita <akinobu.mita@...il.com> wrote:

> > > DECI_KELVIN_TO_MILLICELSIUS_WITH_OFFSET() is only used by ACPI thermal
> > > zone driver and the usage is specific to the driver.  So this macro
> > > is moved to the ACPI thermal driver rather than generic header.
> >
> > I didn't get this point. If we split all helpers, let's do it for all,
> > and not spreading macro per driver.
>
> OK, I'll add deci_kelvin_to_millicelsius_with_offset() in the header.

Thank you.

> But the unit of 'offset' argument will be in millidegree instead of
> decidegree, because it's a bit more generic.

It's fine as long as the helpers are consolidated and consistent.

-- 
With Best Regards,
Andy Shevchenko