I think this is what is necessary, please test.
Subject: bridge: correct IPv6 checksum after pull
Bridge multicast snooping of ICMPv6 would incorrectly report a checksum problem
when used with Ethernet devices like sky2 that use CHECKSUM_COMPLETE.
When bytes are removed from skb, the computed checksum needs to be adjusted.
Signed-off-by: Stephen Hemminger <shemminger@xxxxxxxxxx>
--- a/net/bridge/br_multicast.c 2011-11-09 13:55:00.028012483 -0800
+++ b/net/bridge/br_multicast.c 2011-11-15 10:05:06.171314194 -0800
@@ -1501,7 +1501,9 @@ static int br_multicast_ipv6_rcv(struct
__skb_pull(skb2, offset);
skb_reset_transport_header(skb2);
-
+ skb_postpull_rcsum(skb2, skb_network_header(skb2),
+ skb_network_header_len(skb2));
+
icmp6_type = icmp6_hdr(skb2)->icmp6_type;
switch (icmp6_type) {
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