netdev - Re: [PATCH 10/11] mv643xx_eth: enable transmit time stamping.

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Message-ID: <20110619181740.GC3594@riccoc20.at.omicron.at>
Date:	Sun, 19 Jun 2011 20:17:40 +0200
From:	Richard Cochran <richardcochran@...il.com>
To:	netdev@...r.kernel.org
Cc:	David Miller <davem@...emloft.net>,
	Lennert Buytenhek <buytenh@...tstofly.org>,
	Eric Dumazet <eric.dumazet@...il.com>
Subject: Re: [PATCH 10/11] mv643xx_eth: enable transmit time stamping.

On Sun, Jun 19, 2011 at 01:20:06PM +0200, Richard Cochran wrote:
> This patch enables software (and phy device) transmit time stamping.
> Compile tested only.
> 
> Cc: Lennert Buytenhek <buytenh@...tstofly.org>
> Signed-off-by: Richard Cochran <richard.cochran@...cron.at>
> ---
>  drivers/net/mv643xx_eth.c |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c
> index a5d9b1c..c7a8f10 100644
> --- a/drivers/net/mv643xx_eth.c
> +++ b/drivers/net/mv643xx_eth.c
> @@ -884,6 +884,8 @@ static netdev_tx_t mv643xx_eth_xmit(struct sk_buff *skb, struct net_device *dev)
>  	if (!txq_submit_skb(txq, skb)) {
>  		int entries_left;
>  
> +		skb_tx_timestamp(skb);
> +
>  		txq->tx_bytes += skb->len;

And the line above is unsafe, as well.

>  		txq->tx_packets++;
>  
> -- 
> 1.7.0.4
> 
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