linux-kernel - Re: [ 12/75] USB: EHCI: work around silicon bug in Intels EHCI controllers

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Date:	Wed, 20 Mar 2013 15:28:44 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	Alan Stern <stern@...land.harvard.edu>
Cc:	Sven Joachim <svenjoac@....de>, linux-kernel@...r.kernel.org,
	stable@...r.kernel.org, Stephen Thirlwall <sdt@...com>
Subject: Re: [ 12/75] USB: EHCI: work around silicon bug in Intels EHCI
 controllers

On Wed, Mar 20, 2013 at 04:41:21PM -0400, Alan Stern wrote:
> On Wed, 20 Mar 2013, Greg Kroah-Hartman wrote:
> 
> > > > Ok, I'll postpone this patch for the next stable release, in time for
> > > > the fix to be put in at the same time.
> > > 
> > > I think patch 13/75 ("USB: EHCI: dont check DMA values in QH overlays")
> > > should also be postponed then, at least Alan said so in
> > > <Pine.LNX.4.44L0.1303191125100.15684-100000@...rider.rowland.org>.
> > 
> > Crap, I didn't postpone that one, hopefully it doesn't cause as many
> > problems...
> 
> I haven't tested this combination of changes, except in a highly 
> artificial setting (i.e., running the usbtest suite), so I don't know 
> how it will behave under normal use.  In any case, it's too late to do 
> anything now except issue another -stable release.
> 
> I just saw that the "dont check DMA values" patch did get into the
> 3.0-stable and 3.4-stable releases.  I didn't realize at the time, but
> it shouldn't be in any kernel earlier than 3.6.  I guess the best thing
> to do is queue up a reversion for those two series.

I've now done this, thanks.

greg k-h
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