linux-kernel - Re: Linux 3.8 broken for MacBookAir5,1

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Message-ID: <CAP9ODKrP4BgFvkMb+vZR3tOfn90SAvD=Kykwznmr2_M9okeDag@mail.gmail.com>
Date:	Sun, 10 Feb 2013 02:55:39 -0200
From:	Otavio Salvador <otavio@...ystems.com.br>
To:	Kernel development list <linux-kernel@...r.kernel.org>,
	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>
Subject: Re: Linux 3.8 broken for MacBookAir5,1

On Sun, Feb 10, 2013 at 1:11 AM, Otavio Salvador
<otavio@...ystems.com.br> wrote:
> Hello,
>
> On Sat, Jan 12, 2013 at 8:41 PM, Otavio Salvador
> <otavio@...ystems.com.br> wrote:
>> Today I tried to update my kernel from 3.7.2 to 3.8-rc3 and I had no
>> success; I used localmodconfig to generate the .config for my machine
>> but keyboard does not work.
>>
>> Using same generated .config with 3.7.2 works fine.
>>
>> Anyone has a clue about?
>
> I finally found time to do a bisect and I found:
>
> commit adfa79d1c06a32650332930ca4c488ca570b3407
> Author: Alan Stern <stern@...land.harvard.edu>
> Date:   Thu Nov 1 11:13:04 2012 -0400
>
>     USB: EHCI: make ehci-pci a separate driver
>
>     This patch (as1625) splits the PCI portion of ehci-hcd out into its
>     own separate driver module, called ehci-pci.  Consistently with the
>     current practice, the decision whether to build this module is not
>     user-configurable.  If EHCI and PCI are enabled then the module will
>     be built, always.
>
>     Signed-off-by: Alan Stern <stern@...land.harvard.edu>
>     CC: Felipe Balbi <balbi@...com>
>     Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
>
> As the problem start.
>
> I do have EHCI and PCI enabled so it should be working. Any clue about
> why it breaks it?

If it is built-in it works. So it fails just when used as a module.

-- 
Otavio Salvador                             O.S. Systems
E-mail: otavio@...ystems.com.br  http://www.ossystems.com.br
Mobile: +55 53 9981-7854              http://projetos.ossystems.com.br
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