linux-kernel - Re: [PATCH 2/4] x86: early_quirk check all dev/func in domain 0

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Date:	Mon, 10 Jan 2011 17:46:44 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	Greg KH <greg@...ah.com>
CC:	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	linux-usb@...r.kernel.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/4]  x86: early_quirk check all dev/func in domain 0

On 01/10/2011 05:09 PM, Greg KH wrote:
> On Mon, Jan 10, 2011 at 04:55:23PM -0800, Yinghai Lu wrote:
>>
>> go with all buses instead of bus0.
> 
> Why?

in cause USB host controller is not on Bus0.

> 
>> also only check header type on func0.
> 
> Why?

that is bug.

notice when there is 00:1a.0, 00:1a.1, 00:1a.2 00:1a.7

the quirk code will not be applied with 00:1a.2 and 00:1a.7

it will exit after checking 00:1a.1's header type.

> 
> Please be more verbose in your change log comments, it cuts down on
> emails like this one...

sure.

Thanks

Yinghai
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