linux-kernel - Re: [PATCH] hyper-v: Fix wakeup from suspend-to-idle

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Message-ID: <CAJZ5v0g10fyZZhvLTz_qSADWQCO==fg=zcFQHD7QLZYwVDOsgA@mail.gmail.com>
Date:   Tue, 25 Sep 2018 00:49:16 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Jiri Kosina <jikos@...nel.org>
Cc:     Vitaly Kuznetsov <vkuznets@...hat.com>,
        Linux PM <linux-pm@...r.kernel.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>, kys@...rosoft.com,
        haiyangz@...rosoft.com, sthemmin@...rosoft.com,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        linux-input@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] hyper-v: Fix wakeup from suspend-to-idle

On Mon, Sep 24, 2018 at 11:24 AM Jiri Kosina <jikos@...nel.org> wrote:
>
> On Wed, 12 Sep 2018, Vitaly Kuznetsov wrote:
>
> > It makes little sense but still possible to put Hyper-V guests into
> > suspend-to-idle state. To wake them up two wakeup sources were registered
> > in the past: hyperv-keyboard and hid-hyperv. However, since
> > commit eed4d47efe95 ("ACPI / sleep: Ignore spurious SCI wakeups from
> > suspend-to-idle") pm_wakeup_event() from these devices is ignored. Switch
> > to pm_wakeup_hard_event() API as these devices are actually the only
> > possible way to wakeup Hyper-V guests.
> >
> > Fixes: eed4d47efe95 (ACPI / sleep: Ignore spurious SCI wakeups from suspend-to-idle)
> > Signed-off-by: Vitaly Kuznetsov <vkuznets@...hat.com>
> > ---
> >  drivers/hid/hid-hyperv.c              | 2 +-
>
>         Acked-by: Jiri Kosina <jkosina@...e.cz>
>
> for the above. I guess this'd better go through ACPI tree?

No problem with that if you prefer.

Cheers,
Rafael