linux-kernel - Re: [PATCH] PCI: ACPI: PM: Fix debug message in acpi_pci_set_power

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Message-ID: <CAJZ5v0jksMw4Cmo_u4cU_6ii5_4R5xfytLzpF282tfkv__nF_w@mail.gmail.com>
Date:   Thu, 1 Apr 2021 12:46:03 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Bjorn Helgaas <helgaas@...nel.org>
Cc:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Linux PCI <linux-pci@...r.kernel.org>,
        Linux ACPI <linux-acpi@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        David Box <david.e.box@...ux.intel.com>,
        Krzysztof Wilczyński <kw@...ux.com>
Subject: Re: [PATCH] PCI: ACPI: PM: Fix debug message in acpi_pci_set_power_state()

On Wed, Mar 31, 2021 at 11:09 PM Bjorn Helgaas <helgaas@...nel.org> wrote:
>
> On Thu, Mar 25, 2021 at 07:57:51PM +0100, Rafael J. Wysocki wrote:
> > From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> >
> > If PCI_D3cold is passed to acpi_pci_set_power_state() as the second
> > argument and there is no ACPI D3cold support for the given device,
> > the debug message printed by that function will state that the
> > device power state has been changed to D3cold, while in fact it
> > will be D3hot, because acpi_device_set_power() falls back to D3hot
> > automatically if D3cold is not supported without returning an error.
> >
> > To address this issue, modify the debug message in question to print
> > the current power state of the target PCI device's ACPI companion
> > instead of printing the target power state which may not reflect
> > the real final power state of the device.
> >
> > Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
>
> Applied with Krzysztof's reviewed-by to pci/pm for v5.13, thanks!
>
> Let me know if you have nearby or related changes that you'd rather
> take via your tree.

I don't have any, thank you!