linux-kernel - Re: [PATCH 1/8] add header file for kelvin to/from Celsius conversion helpers

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Message-ID: <CAHp75VdXUKLrnPEnga7An7BnCoGac=XxgWESWyV-ShmK_xiD4g@mail.gmail.com>
Date:   Mon, 25 Nov 2019 21:05:00 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Akinobu Mita <akinobu.mita@...il.com>,
        "edubezval@...il.com" <edubezval@...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>,
        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 1/8] add header file for kelvin to/from Celsius conversion helpers

On Mon, Nov 25, 2019 at 4:30 PM Akinobu Mita <akinobu.mita@...il.com> wrote:
> 2019年11月24日(日) 23:57 Andy Shevchenko <andy.shevchenko@...il.com>:
> > On Sun, Nov 24, 2019 at 4:09 PM Akinobu Mita <akinobu.mita@...il.com> wrote:

> > >  include/linux/thermal.h     |  1 +

> > > --- a/include/linux/thermal.h
> > > +++ b/include/linux/thermal.h
> > > @@ -14,6 +14,7 @@
> > >  #include <linux/idr.h>
> > >  #include <linux/device.h>
> > >  #include <linux/sysfs.h>
> > > +#include <linux/temperature.h>
> > >  #include <linux/workqueue.h>
> > >  #include <uapi/linux/thermal.h>
> >
> > I don't see any users of it. Why did you include?
>
> The rest of this patch series starts using it.
>
> I decided to include <linux/temperature.h> from <linux/thermal.h> because
> the existing <linux/thermal.h> provides the conversion helpers.
>
> However, not all of the thermal drivers require these conversion helpers,
> so we can change to include <linux/temperature.h> from each thermal driver
> instead of including it from <linux/thermal.h>.
>
> Which way do you prefer?

I think users should include new header explicitly.

-- 
With Best Regards,
Andy Shevchenko