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

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Message-ID: <AE90C24D6B3A694183C094C60CF0A2F6026B744E@saturn3.aculab.com>
Date:	Mon, 2 Dec 2013 09:30:02 -0000
From:	"David Laight" <David.Laight@...LAB.COM>
To:	"Mark Lord" <mlord@...ox.com>,
	"Sarah Sharp" <sarah.a.sharp@...ux.intel.com>
Cc:	"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

> 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.

	David