linux-kernel - Re: [PATCH] Add PNP0A08 into acpi_pci

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Message-ID: <CAErSpo6ehw1JHMyE27MuX2VR89+1zC48QJe9Udih88N-W-73Wg@mail.gmail.com>
Date:	Wed, 17 Oct 2012 21:55:09 -0600
From:	Bjorn Helgaas <bhelgaas@...gle.com>
To:	Tang Chen <tangchen@...fujitsu.com>
Cc:	lenb@...nel.org, yinghai@...nel.org, jiang.liu@...wei.com,
	izumi.taku@...fujitsu.com, isimatu.yasuaki@...fujitsu.com,
	linux-acpi@...r.kernel.org, linux-pci@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Add PNP0A08 into acpi_pci_roots array.

On Wed, Oct 17, 2012 at 8:22 PM, Tang Chen <tangchen@...fujitsu.com> wrote:
> acpi_pci_roots array doesn't include PNP0A08, which is PCI Express
> Root Bridge.

You need to explain why this change is necessary.  PNP0A08 devices
will have a PNP0A03 _CID, so the driver already claims PNP0A08 devices
because the _CID matches.

> Signed-off-by: Tang Chen <tangchen@...fujitsu.com>
> ---
>  drivers/acpi/pci_root.c |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
> index 037b59c..dedc4d6 100644
> --- a/drivers/acpi/pci_root.c
> +++ b/drivers/acpi/pci_root.c
> @@ -56,6 +56,7 @@ static int acpi_pci_root_start(struct acpi_device *device);
>
>  static const struct acpi_device_id root_device_ids[] = {
>         {"PNP0A03", 0},
> +       {"PNP0A08", 0},
>         {"", 0},
>  };
>  MODULE_DEVICE_TABLE(acpi, root_device_ids);
> --
> 1.7.1
>
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