linux-kernel - Re: [EXT] [PATCH v1 2/2][RFT] ACPI: PM: Check states of power resources during initialization

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Date:   Tue, 19 Oct 2021 12:59:11 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     "Andreas K. Huettel" <andreas.huettel@...de>
Cc:     Linux ACPI <linux-acpi@...r.kernel.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux PCI <linux-pci@...r.kernel.org>,
        Linux PM <linux-pm@...r.kernel.org>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>
Subject: Re: [EXT] [PATCH v1 2/2][RFT] ACPI: PM: Check states of power
 resources during initialization

On Mon, Oct 18, 2021 at 12:41 PM Andreas K. Huettel
<andreas.huettel@...de> wrote:
>
> Am Freitag, 15. Oktober 2021, 19:14:10 CEST schrieb Rafael J. Wysocki:
> > From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> >
> > To avoid situations in which the actual states of certain ACPI power
> > resources are not known just because they have never been referenced
> > by any device configuration objects, check the initial states of all
> > power resources as soon as they are found in the ACPI namespace (and
> > fall back to turning them on if the state check fails).
> >
> > Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> > ---
> >
> > Andreas, please test this patch (on top of the [1/2]) and let me know
> > if it works for you.
> >
>
> I see no negative impact (actually, no impact at all) of the second
> additional patch. The network card is again working fine now.
>
> Boot logs (unpatched, with one patch, with both patches) at
> https://dev.gentoo.org/~dilfridge/igb/  (the 5.14.12* files).

Thanks!