linux-kernel - Re: [PATCH v3 1/3] driver core: Provide device_match_acpi

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Message-ID: <YWdOilxGqREXPBAm@smile.fi.intel.com>
Date:   Thu, 14 Oct 2021 00:24:26 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     "Rafael J. Wysocki" <rafael@...nel.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Saravana Kannan <saravanak@...gle.com>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
        linux-i2c <linux-i2c@...r.kernel.org>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Wolfram Sang <wsa@...nel.org>
Subject: Re: [PATCH v3 1/3] driver core: Provide device_match_acpi_handle()
 helper

On Wed, Oct 13, 2021 at 07:47:37PM +0200, Rafael J. Wysocki wrote:
> On Thu, Oct 7, 2021 at 7:18 PM Andy Shevchenko
> <andriy.shevchenko@...ux.intel.com> wrote:
> >
> > We have couple of users of this helper, make it available for them.
> 
> "a couple"?

Yep.

> >  EXPORT_SYMBOL(device_match_acpi_dev);
> >
> > +int device_match_acpi_handle(struct device *dev, const void *handle)
> 
> Hmmm.  Should the second arg be of type acpi_handle?

acpi_handle is not defined as struct and it means the header, where the
prototype is declared, will require acpi.h to be included. Besides that the
whole set of device_match_*() is done by the same prototype, so it can be used
in bus_find_device() calls.

> And doesn't this function belong to the ACPI core?  It is related to
> acpi_bus_get_device() and such which are located there.

Same as above. I don't think so.

-- 
With Best Regards,
Andy Shevchenko