linux-kernel - Re: [PATCH v2 3/6] pwm: lpss: Include headers we are direct user of

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Date:   Thu, 10 Nov 2022 12:24:14 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Thierry Reding <thierry.reding@...il.com>,
        linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org,
        linux-pwm@...r.kernel.org, Andy Shevchenko <andy@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>
Subject: Re: [PATCH v2 3/6] pwm: lpss: Include headers we are direct user of

On Thu, Nov 10, 2022 at 12:20 PM Uwe Kleine-König
<u.kleine-koenig@...gutronix.de> wrote:
> On Thu, Nov 10, 2022 at 11:53:59AM +0200, Andy Shevchenko wrote:
> > On Thu, Nov 10, 2022 at 9:22 AM Uwe Kleine-König
> > <u.kleine-koenig@...gutronix.de> wrote:
> > > On Tue, Nov 08, 2022 at 04:22:23PM +0200, Andy Shevchenko wrote:

...

> > > > Replace device.h with a forward declaration in order to improve
> > > > the compilation time due to reducing overhead of device.h parsing
> > > > with entire train of dependencies.
> > >
> > > Together with "For the sake of integrity, include headers we are direct
> > > user of." this makes an a bit schizophrenic impression on me. You add
> > > <linux/types.h> because the file is a direct user of it, but you drop
> > > <linux/device.h> despite being a direct user.
> >
> > But we don't use device.h.
>
> What is the canonical header to provide struct device?

But we don't use the struct device here. We use _pointer_ to a struct device.


-- 
With Best Regards,
Andy Shevchenko