linux-kernel - Re: [PATCH] ACPI: processor: Move MWAIT quirk out of acpi

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Date:   Tue, 29 Aug 2023 15:54:18 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Guenter Roeck <linux@...ck-us.net>,
        Michal Wilczynski <michal.wilczynski@...el.com>
Cc:     rafael@...nel.org, andriy.shevchenko@...el.com,
        artem.bityutskiy@...ux.intel.com, mingo@...hat.com, bp@...en8.de,
        dave.hansen@...ux.intel.com, hpa@...or.com, lenb@...nel.org,
        jgross@...e.com, linux-kernel@...r.kernel.org, x86@...nel.org,
        "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>
Subject: Re: [PATCH] ACPI: processor: Move MWAIT quirk out of acpi_processor.c

On Tue, Aug 29, 2023 at 3:44 PM Guenter Roeck <linux@...ck-us.net> wrote:
>
> On Mon, Jul 10, 2023 at 05:03:29PM +0300, Michal Wilczynski wrote:
> > Commit 2a2a64714d9c ("ACPI: Disable MWAIT via DMI on broken Compal board")
> > introduced a workaround for MWAIT for a specific x86 system.
> >
> > Move the code outside of acpi_processor.c to acpi/x86/ directory for
> > consistency and rename the functions associated with it, so their names
> > start with "acpi_proc_quirk_" to make the goal obvious.
> >
> > No intentional functional impact.
> >
>
> Except for:
>
> ia64-linux-ld: drivers/acpi/acpi_processor.o: in function `acpi_early_processor_control_setup':
> acpi_processor.c:(.init.text+0x712): undefined reference to `acpi_proc_quirk_mwait_check'
> ia64-linux-ld: drivers/acpi/processor_pdc.o: in function `acpi_early_processor_set_pdc':
> processor_pdc.c:(.init.text+0x72): undefined reference to `acpi_proc_quirk_mwait_check'
>
> which breaks all ia64 builds.
>
> Time to retire that architecture yet ? No one but me seems to even
> build test it.

Including 0-day it seems.  This had been in linux-next for several weeks.

Michal, can you have a look at this please?