linux-kernel - Re: [PATCH v2] ll_temac: Reset dma descriptors indexes on ndo

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Message-Id: <20131001.123225.1741210078792586013.davem@davemloft.net>
Date:	Tue, 01 Oct 2013 12:32:25 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	ricardo.ribalda@...il.com
Cc:	joe@...ches.com, jg1.han@...sung.com, gregkh@...uxfoundation.org,
	wfp5p@...ginia.edu, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] ll_temac: Reset dma descriptors indexes on ndo_open

From: Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>
Date: Tue,  1 Oct 2013 08:17:10 +0200

> The dma descriptors indexes are only initialized on the probe function.
> 
> If a packet is on the buffer when temac_stop is called, the dma
> descriptors indexes can be left on a incorrect state where no other
> package can be sent.
> 
> So an interface could be left in an usable state after ifdow/ifup.
> 
> This patch makes sure that the descriptors indexes are in a proper
> status when the device is open.
> 
> Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>

Applied and queued up for -stable, thanks.
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