From: Linus Lüssing <redacted>
Date: Sun, 27 Mar 2011 08:27:23 +0200

In contrast to IGMP, the MLDv1/2 message checksum needs to include an
IPv6 "pseudo-header" in the calculations (see RFC2710, section 3.3;
RFC3810, section 5.1.2).

The multicast snooping feature of the bridge code however did not take
this "pseudo-header" into consideration for the checksum validation when
parsing a snooped IPv6 MLDv1/2 message of another host, leading to
possibly ignored, though valid MLDv1/2 messages. This commit shall fix
this issue.

Signed-off-by: Linus Lüssing <redacted>

I'm waiting for am updated version of this patch which addresses Herbert
Xu's feedback.