netdev - Re: net/usb/ax88179_178a driver broken in linux-3.12

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Message-ID: <20131202190836.GC3898@xanatos>
Date:	Mon, 2 Dec 2013 11:08:36 -0800
From:	Sarah Sharp <sarah.a.sharp@...ux.intel.com>
To:	Mark Lord <mlord@...ox.com>
Cc:	David Laight <David.Laight@...LAB.COM>,
	David Miller <davem@...emloft.net>, eric.dumazet@...il.com,
	ming.lei@...onical.com, netdev@...r.kernel.org,
	linux-usb@...r.kernel.org
Subject: Re: net/usb/ax88179_178a driver broken in linux-3.12

On Mon, Dec 02, 2013 at 10:05:54AM -0500, Mark Lord wrote:
> On 13-12-02 04:30 AM, David Laight wrote:
> >> From: Mark Lord
> >> Sent: 30 November 2013 02:59
> >> To: Sarah Sharp; David Laight
> >> Cc: David Miller; eric.dumazet@...il.com; ming.lei@...onical.com; netdev@...r.kernel.org; linux-
> >> usb@...r.kernel.org
> >> Subject: Re: net/usb/ax88179_178a driver broken in linux-3.12
> >>
> >> On 13-11-19 08:44 AM, Mark Lord wrote:
> >>> On 13-11-19 05:04 AM, David Laight wrote:
> >>>>
> >>>> Which changes did you revert?
> >>>
> >>> Just the bits that changed how the headroom/tailroom sizes
> >>> were checked and adjusted.  See attachment for the revert patch
> >>> I am using here.  My mailer unfortunately likes to mangle inline patches.
> >>>
> > ...
> >>
> >> Two kernels later, and this regression has still not been fixed.
> >>
> >> A simple revert, folks.
> > 
> > Reverting the ax88179_178a driver doesn't fix the problem.
> > I'm seen tx/rx issues with it on much older kernels that don't
> > appear with a current kernel and the fixed xhci code.
> > 
> > Sarah needs to feed the xhci_ring.c fix through into stable.
> 
> Oh, I agree.  But Linus makes a MASSIVE distinction between things
> that have always been broken, and REGRESSIONS from the immediately
> prior kernel that can be tracked to a single update.
> 
> Let's see some action, here folks!

I'm working on it.  You will probably have to wait for -rc3, depending
on when Greg sends his next pull request.  I will Cc you on the pull
request and patch, which should be sent out today.

Sarah Sharp
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