netdev - Re: [PATCH] ip6_tunnel dont update the mtu on the route.

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Date:	Tue, 19 Oct 2010 16:32:08 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Anders.Franzen@...csson.com
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH] ip6_tunnel dont update the mtu on the route.

Le mardi 19 octobre 2010 à 15:50 +0200, Anders.Franzen@...csson.com a
écrit :
> From: Anders Franzen <anders.franzen@...csson.com>
> 
> The ip6_tunnel device did not unset the flag,
> IFF_XMIT_DST_RELEASE. This will make the dev layer
> to release the dst before calling the tunnel.
> The tunnel will not update any mtu/pmtu info, since
> it does not have a dst on the skb.
> ---
>  net/ipv6/ip6_tunnel.c |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
> 
> diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
> index c2c0f89..38b9a56 100644
> --- a/net/ipv6/ip6_tunnel.c
> +++ b/net/ipv6/ip6_tunnel.c
> @@ -1371,6 +1371,7 @@ static void ip6_tnl_dev_setup(struct net_device *dev)
>  	dev->flags |= IFF_NOARP;
>  	dev->addr_len = sizeof(struct in6_addr);
>  	dev->features |= NETIF_F_NETNS_LOCAL;
> +	dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
>  }
>  
> 

Thanks for catching this Anders

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



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