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Date:	Wed, 16 Dec 2015 18:32:53 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	martin.roth@...orolasolutions.com
Cc:	pantelis.antoniou@...il.com, vbordug@...mvista.com,
	linuxppc-dev@...ts.ozlabs.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH] 82xx: FCC: Fixing a bug causing to FCC port lock-up

From: Martin Roth <martin.roth@...orolasolutions.com>
Date: Tue, 15 Dec 2015 04:17:53 +0200

> The patch fixes FCC port lock-up, which occurs as a result of a bug
> during underrun/collision handling. Within the tx_startup() function
> in mac-fcc.c, the address of last BD is not calculated correctly.
> As a result of wrong calculation of the last BD address, the next
> transmitted BD may be set to an area out of the transmit BD ring.
> This actually causes to port lock-up and it is not recoverable.
> 
> Signed-off-by: Martin Roth <martin.roth@...orolasolutions.com>

Applied, thanks.
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