netdev - Re: [PATCH] net: don't clear IFF_XMIT_DST_RELEASE in ether

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Date:	Wed, 14 Sep 2011 15:28:41 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Neil Horman <nhorman@...driver.com>
Cc:	netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
	Pekka Riikonen <priikone@....fi>
Subject: Re: [PATCH] net: don't clear IFF_XMIT_DST_RELEASE in ether_setup

Le mercredi 14 septembre 2011 à 09:05 -0400, Neil Horman a écrit :
> d88733150 introduced the IFF_SKB_TX_SHARING flag, which I unilaterally set in
> ether_setup.  In doing this I didn't realize that other flags (such as
> IFF_XMIT_DST_RELEASE) might be set prior to calling the ether_setup routine.
> This patch changes ether_setup to or in SKB_TX_SHARING so as not to
> inadvertently clear other existing flags.  Thanks to Pekka Riikonen for pointing
> out my error
> 
> Signed-off-by: Neil Horman <nhorman@...driver.com>
> Reported-by: Pekka Riikonen <priikone@....fi>
> CC: "David S. Miller" <davem@...emloft.net>
> ---
>  net/ethernet/eth.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c
> index 27997d3..a246836 100644
> --- a/net/ethernet/eth.c
> +++ b/net/ethernet/eth.c
> @@ -340,7 +340,7 @@ void ether_setup(struct net_device *dev)
>  	dev->addr_len		= ETH_ALEN;
>  	dev->tx_queue_len	= 1000;	/* Ethernet wants good queues */
>  	dev->flags		= IFF_BROADCAST|IFF_MULTICAST;
> -	dev->priv_flags		= IFF_TX_SKB_SHARING;
> +	dev->priv_flags		|= IFF_TX_SKB_SHARING;
>  
>  	memset(dev->broadcast, 0xFF, ETH_ALEN);
>  

I CC Pekka Riikonen <priikone@....fi>, not sure if he is netdev
subscribded.

Acked-by: Eric Dumazet <eric.dumazet@...il.com>



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