netdev - Re: [PATCH 07/11] fs_enet: enable transmit time stamping.

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Message-ID: <20110620065831.GA5771@riccoc20.at.omicron.at>
Date:	Mon, 20 Jun 2011 08:58:31 +0200
From:	Richard Cochran <richardcochran@...il.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	netdev@...r.kernel.org, David Miller <davem@...emloft.net>,
	Matt Carlson <mcarlson@...adcom.com>,
	Michael Chan <mchan@...adcom.com>
Subject: Re: [PATCH 07/11] fs_enet: enable transmit time stamping.

On Sun, Jun 19, 2011 at 08:30:49PM +0200, Eric Dumazet wrote:
> Le dimanche 19 juin 2011 à 20:12 +0200, Richard Cochran a écrit :
> 
> > Thanks for your review. I have posted a fix for the first batch (since
> > they are already in next) and reposted this series.
> > 
> > But, considering your point, it looks like pxa168_eth and mv643xx_eth
> > (see patches 9 and 10 of this series) already access skb->len unsafely.
> > 
> > Would you care to comment on those spots, too?
> 
> They certainly are buggy, at a first glance.
> 
> Not only skb->len is unsafe, but netif_tx_stop_queue() calls are unsafe
> too.

Out of the MAC drivers in my two batches, only drivers/net/tg3.c calls
netif_tx_stop_queue(txq);

However, I don't know how to fix that. Anyone else care to take a look?

Thanks,

Richard
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