linux-kernel - Re: [PATCH 2/5] ACPI: scan: Make acpi_walk_dep_device

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Message-ID: <CAJZ5v0h3Tb-vzQVcr77HbtRbRB6TkB4Nf4Hb6nML2jUQ_ZEGnA@mail.gmail.com>
Date:   Wed, 16 Jun 2021 17:25:12 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Hans de Goede <hdegoede@...hat.com>
Cc:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Linux ACPI <linux-acpi@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/5] ACPI: scan: Make acpi_walk_dep_device_list()

On Wed, Jun 16, 2021 at 5:11 PM Rafael J. Wysocki <rafael@...nel.org> wrote:
>
> On Wed, Jun 16, 2021 at 4:41 PM Hans de Goede <hdegoede@...hat.com> wrote:
> >
> > Hi,
> >
> > On 6/16/21 4:22 PM, Rafael J. Wysocki wrote:
> > > From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> > >
> > > Because acpi_walk_dep_device_list() is only called by the code in the
> > > file in which it is defined, make it static, drop the export of it
> > > and drop its header from acpi.h.
> > >
> > > Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> >
> > Actually, acpi_walk_dep_device_list() was split out as a
> > helper function used to implement acpi_dev_clear_dependencies()
> > because it will be used outside of drivers/acpi.
>
> Not exactly.
>
> > Specifically it will be used in the new intel_skl_int3472 driver:
> > https://patchwork.kernel.org/project/platform-driver-x86/patch/20210603224007.120560-6-djrscally@gmail.com/
>
> That driver will use acpi_dev_get_first_consumer_dev() which is based
> on acpi_walk_dep_device_list(), but still defined in
> drivers/acpi/scan.c.
>
> > Which I plan to merge into pdx86/for-next today, I've just merged
> > your linux-pm/acpi-scan PULL-req which exports acpi_walk_dep_device_list()
> > as preparation for this.
>
> No, the acpi_walk_dep_device_list() is a leftover there AFAICS.

I mean the export of it.

> If it needs to be exported in the future, that still can be done.  ATM
> the export isn't necessary.
>
> Thanks!