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

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Message-ID: <507F54BA.2050103@cn.fujitsu.com>
Date:	Thu, 18 Oct 2012 09:00:42 +0800
From:	Tang Chen <tangchen@...fujitsu.com>
To:	Yinghai Lu <yinghai@...nel.org>
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 10/18/2012 12:28 AM, Yinghai Lu wrote:
> 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.

Hi Yinghai,

OK, I can do that. :)
And I'll send patches for that soon. :)

>
> Thanks
>
> Yinghai
>

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