linux-kernel - Re: [PATCH 1/1] Update acpi_root_bridge

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Message-ID: <CAE9FiQX60dOE7odBx4OC0kawesZW3w9yLHEhmLoOvASaZ7q8dw@mail.gmail.com>
Date:	Wed, 17 Oct 2012 09:28:09 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Tang Chen <tangchen@...fujitsu.com>
Cc:	jiang.liu@...wei.com, bhelgaas@...gle.com, lenb@...nel.org,
	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 1/1] Update acpi_root_bridge_list in container hotplug path.

On Wed, Oct 17, 2012 at 12:39 AM, Tang Chen <tangchen@...fujitsu.com> wrote:
> On 10/17/2012 01:18 PM, Yinghai Lu wrote:
>
> And also, I have another 2 questions, maybe you can help me.
> 1) Do we need to put PNP0A08 into acpi_pci_roots ?

looks like we need to unify those two ids.

> 2) In container_notify_cb(), when it got a ACPI_NOTIFY_EJECT_REQUEST
>    event, it doesn't do the hot-remove things.
>    I use your sci emulator patch to test it. I did the following thing:
>         echo echo "\_SB_.LSB1" > /sys/kernel/debug/acpi/sci_notify
>    where \_SB_.LSB1 is a container, it just did nothing.
>    Do we need to support this operation ?

yes, looks like need to add container_device_remove and call it under
 container_notify_cb/ACPI_NOTIFY_EJECT_REQUEST

and should look like handle_root_bridge_removal to call acpi_bus_trim two times.

Thanks

Yinghai
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