linux-kernel - Re: [RFC PATCH v5 4/8] ACPI, PCI: avoid building pci

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Message-ID: <51072EDA.2000704@huawei.com>
Date:	Tue, 29 Jan 2013 10:07:22 +0800
From:	Jiang Liu <jiang.liu@...wei.com>
To:	Yinghai Lu <yinghai@...nel.org>
CC:	Bjorn Helgaas <bhelgaas@...gle.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>, Jiang Liu <liuj97@...il.com>,
	Kenji Kaneshige <kaneshige.kenji@...fujitsu.com>,
	Yijing Wang <wangyijing@...wei.com>,
	<linux-kernel@...r.kernel.org>, <linux-pci@...r.kernel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	Toshi Kani <toshi.kani@...com>,
	Myron Stowe <myron.stowe@...hat.com>
Subject: Re: [RFC PATCH v5 4/8] ACPI, PCI: avoid building pci_slot as module

On 2013-1-29 6:58, Yinghai Lu wrote:
> On Mon, Jan 28, 2013 at 2:14 PM, Bjorn Helgaas <bhelgaas@...gle.com> wrote:
>>
>> CONFIG_ACPI_PCI_SLOT=y in RHEL6, so evidently they have this problem.
> 
> oh, I only checked opensuse that has that set to m.
> 
>>
>> Asking users to edit module.conf by hand is not a solution, just like
>> asking users to boot with a command line option is not a solution.
>> That sort of stuff is fine for a hobbyist OS intended only for techie
>> geeks.  It's not fine for Linux.
> 
> not sure. add something in command line or conf files.
> but recompile kernel is another story.
> 
>>
>> If you would give a concrete example of the ACPI namespace info and
>> device config, hotplug sequence, etc., required to show the problem,
>> we could have a useful discussion about ways to fix it.  But if all
>> you have is FUD about "this might break and users won't have the
>> ability to edit modules.conf," that doesn't help me see why this patch
>> is a bad idea.
> 
> Never mind, We should save your bandwidth to more patches.
Hi Yinghai,
	Could we use quirk to auto-disable PCIe native hotplug for
problematic platforms?
Regards!
Gerry

> 
> Yinghai
> 
> .
> 


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