linux-kernel - Re: [BUGFIX v2 0/4] fix bug 56531, 59501 and 59581

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Date:	Sun, 23 Jun 2013 23:57:46 +0800
From:	Jiang Liu <liuj97@...il.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
CC:	"Alexander E. Patrakov" <patrakov@...il.com>,
	Jiang Liu <jiang.liu@...wei.com>, alexdeucher@...il.com,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Yinghai Lu <yinghai@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Yijing Wang <wangyijing@...wei.com>,
	linux-acpi@...r.kernel.org,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [BUGFIX v2 0/4] fix bug 56531, 59501 and 59581

On 06/23/2013 03:59 AM, Rafael J. Wysocki wrote:
> On Saturday, June 22, 2013 10:47:24 AM Jiang Liu wrote:
>> On 06/22/2013 08:13 AM, Rafael J. Wysocki wrote:
>>> On Saturday, June 22, 2013 12:54:21 AM Jiang Liu wrote:
>>>> On 06/21/2013 03:06 AM, Rafael J. Wysocki wrote:
>>>>> On Wednesday, June 19, 2013 11:18:41 AM Alexander E. Patrakov wrote:
>>>>>> 2013/6/19 Rafael J. Wysocki <rjw@...k.pl>:
>>>>>>> OK, let's try to untangle this a bit.
>>>>>>>
>>>>>>> If you applyt patches [1/4] and [4/4] from the $subject series only, what
>>>>>>> does remain unfixed?
>>>>>>
>>>>>> [not tested, can do so in 12 hours if needed]
>>>>>>
>>>>>> I think there will be problems on undocking and/or on the second
>>>>>> docking, as described in comments #6 - #8 of
>>>>>> https://bugzilla.kernel.org/show_bug.cgi?id=59501
>>>>>
>>>>> OK, I think I have something that might work.  It may not solve all problems,
>>>>> but maybe it helps a bit.  Unfortunately, I can't really test it, so please do
>>>>> if you can.
>>>>>
>>>>> Please apply [1/4] and [4/4] and the one below and see what happens.
>>>>>
>>>>> Thanks,
>>>>> Rafael
>>>>>
>>>>>
>>>>> ---
>>>>> Rationale:
>>>>> 	acpiphp_glue.c:disable_device() trims the underlying ACPI device objects
>>>>> 	after removing the companion PCI devices, so the dock station code
>>>>> 	doesn't need to trim them separately for the dependent devices handled
>>>>> 	by acpiphp.
>>>>>
>>>>> 	Moreover, acpiphp_glue.c is the only user of
>>>>> 	[un]register_hotplug_dock_device(), so *all* devices on the
>>>>> 	ds->hotplug_devices list are handled by acpiphp and ops is set for all
>>>>> 	of them.
>>>> Hi Rafael,
>>>>     There's an ongoing patch to fix a disk bay hotplug regression, which
>>>> may add a second caller of register_hotplug_device(). Please refer to
>>>> bug 59871, and the proposed patch is at:
>>>> https://bugzilla.kernel.org/attachment.cgi?id=105581
>> Hi Rafael,
>>     You can find the proposed patch for ATA Bay hotplug at
>> https://bugzilla.kernel.org/attachment.cgi?id=105581
> 
> Well, maybe it'll have to be reworked slightly.
> 
> Which BZ entry is that?
Hi Rafael,
	It's bug 59871, please refer to:
https://bugzilla.kernel.org/show_bug.cgi?id=59871
Regards!
Gerry

> 
> Rafael
> 
> 

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