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

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Message-ID: <Pine.LNX.4.44L0.1302100946040.29460-100000@netrider.rowland.org>
Date:	Sun, 10 Feb 2013 09:47:22 -0500 (EST)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Otavio Salvador <otavio@...ystems.com.br>
cc:	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, 10 Feb 2013, Otavio Salvador 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?

Perhaps your system is not loading the new ehci-pci kernel module.

Alan Stern

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