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

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Date:   Fri, 14 Jun 2019 15:35:36 +0000
From:   "Moore, Robert" <robert.moore@...el.com>
To:     Nikolaus Voss <nv@...n.de>, "Rafael J. Wysocki" <rafael@...nel.org>
CC:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>,
        "Schmauss, Erik" <erik.schmauss@...el.com>,
        Jacek Anaszewski <jacek.anaszewski@...il.com>,
        Pavel Machek <pavel@....cz>, Dan Murphy <dmurphy@...com>,
        Thierry Reding <thierry.reding@...il.com>,
        "ACPI Devel Maling List" <linux-acpi@...r.kernel.org>,
        "open list:ACPI COMPONENT ARCHITECTURE (ACPICA)" <devel@...ica.org>,
        "linux-leds@...r.kernel.org" <linux-leds@...r.kernel.org>,
        Linux PWM List <linux-pwm@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v2 1/3] ACPI: Resolve objects on host-directed table
 loads



-----Original Message-----
From: Nikolaus Voss [mailto:nv@...n.de] 
Sent: Friday, June 14, 2019 2:26 AM
To: Rafael J. Wysocki <rafael@...nel.org>
Cc: Rafael J. Wysocki <rjw@...ysocki.net>; Len Brown <lenb@...nel.org>; Moore, Robert <robert.moore@...el.com>; Schmauss, Erik <erik.schmauss@...el.com>; Jacek Anaszewski <jacek.anaszewski@...il.com>; Pavel Machek <pavel@....cz>; Dan Murphy <dmurphy@...com>; Thierry Reding <thierry.reding@...il.com>; ACPI Devel Maling List <linux-acpi@...r.kernel.org>; open list:ACPI COMPONENT ARCHITECTURE (ACPICA) <devel@...ica.org>; linux-leds@...r.kernel.org; Linux PWM List <linux-pwm@...r.kernel.org>; Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
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@...wensteinmedical.de> 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@...wensteinmedical.de>
>
> This is fine by me, so
>
> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
>
> 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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