RE: [PATCH v2 1/3] ACPI: Resolve objects on host-directed table loads

From: Moore, Robert
Date: Fri Jun 14 2019 - 11:40:27 EST




-----Original Message-----
From: Nikolaus Voss [mailto:nv@xxxxxxx]
Sent: Friday, June 14, 2019 2:26 AM
To: Rafael J. Wysocki <rafael@xxxxxxxxxx>
Cc: Rafael J. Wysocki <rjw@xxxxxxxxxxxxx>; Len Brown <lenb@xxxxxxxxxx>; Moore, Robert <robert.moore@xxxxxxxxx>; Schmauss, Erik <erik.schmauss@xxxxxxxxx>; Jacek Anaszewski <jacek.anaszewski@xxxxxxxxx>; Pavel Machek <pavel@xxxxxx>; Dan Murphy <dmurphy@xxxxxx>; Thierry Reding <thierry.reding@xxxxxxxxx>; ACPI Devel Maling List <linux-acpi@xxxxxxxxxxxxxxx>; open list:ACPI COMPONENT ARCHITECTURE (ACPICA) <devel@xxxxxxxxxx>; linux-leds@xxxxxxxxxxxxxxx; Linux PWM List <linux-pwm@xxxxxxxxxxxxxxx>; Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>
Subject: Re: [PATCH v2 1/3] ACPI: Resolve objects on host-directed table loads

Hi Rafael,

On Fri, 14 Jun 2019, Rafael J. Wysocki wrote:
> On Wed, Jun 12, 2019 at 10:36 AM Nikolaus Voss
> <nikolaus.voss@xxxxxxxxxxxxxxxxxxxxx> wrote:
>>
>> If an ACPI SSDT overlay is loaded after built-in tables have been
>> loaded e.g. via configfs or efivar_ssdt_load() it is necessary to
>> rewalk the namespace to resolve references. Without this, relative
>> and absolute paths like ^PCI0.SBUS or \_SB.PCI0.SBUS are not resolved
>> correctly.
>>
>> Make configfs load use the same method as efivar_ssdt_load().
>>
>> Signed-off-by: Nikolaus Voss <nikolaus.voss@xxxxxxxxxxxxxxxxxxxxx>
>
> This is fine by me, so
>
> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
>
> Or if you want me to take this patch (without the other two in the
> series), please let me know.

thanks. I think it would be the best if you take up this patch as it is an independent topic. In retrospect it wasn't a good idea to put it into this series.

Kind regards,
Niko

I would have to ask, why is additional code needed for package initialization/resolution? It already happens elsewhere in acpica.
Bob

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