netdev - Re: IPv6 multicast snooping behaviour on 2.6.39-rc2 and later

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Date:	Tue, 23 Aug 2011 23:04:16 +0900
From:	Ang Way Chuang <wcang@....wide.ad.jp>
To:	Eric Dumazet <eric.dumazet@...il.com>
CC:	netdev@...r.kernel.org,
	Linus Lüssing <linus.luessing@....de>,
	Herbert Xu <herbert@...dor.apana.org.au>
Subject: Re: IPv6 multicast snooping behaviour on 2.6.39-rc2 and later

Tough luck :( Got no love from bridge. It still doesn't work with your latest patch. Please keep sending those patches.

On 23/08/11 22:10, Eric Dumazet wrote:
> Le mardi 23 août 2011 à 21:31 +0900, Ang Way Chuang a écrit :
>> Sorry for the blurb. I hope I've configured thunderbird properly to
>> send in plain text. Hope you received my reply. I tried your patch on
>> 3.0.3 and it didn't fix the problem.
>
> Thanks for trying !
>
> Ok could you please try following patch then ?
>
> diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
> index 2d85ca7..e9b32a3 100644
> --- a/net/bridge/br_multicast.c
> +++ b/net/bridge/br_multicast.c
> @@ -1497,7 +1497,7 @@ static int br_multicast_ipv6_rcv(struct net_bridge *br,
>   	if (!pskb_may_pull(skb2, offset + sizeof(struct icmp6hdr)))
>   		goto out;
>
> -	len -= offset - skb_network_offset(skb2);
> +	len -= offset;
>
>   	__skb_pull(skb2, offset);
>   	skb_reset_transport_header(skb2);
> @@ -1520,6 +1520,7 @@ static int br_multicast_ipv6_rcv(struct net_bridge *br,
>   		err = pskb_trim_rcsum(skb2, len);
>   		if (err)
>   			goto out;
> +		icmp6h = icmp6_hdr(skb2);
>   	}
>
>   	switch (skb2->ip_summed) {
>
>
>

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