From: Linus Lüssing <linus.luessing@web.de>
Date: Wed, 4 Sep 2013 00:13:38 +0000 (+0200)
Subject: bridge: prevent flooding IPv6 packets that do not have a listener
X-Git-Tag: v3.12-rc1~132^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8fad9c39f31f9ed7bf3526c43a4537b2fcf1a5d5;p=pandora-kernel.git

bridge: prevent flooding IPv6 packets that do not have a listener

Currently if there is no listener for a certain group then IPv6 packets
for that group are flooded on all ports, even though there might be no
host and router interested in it on a port.

With this commit they are only forwarded to ports with a multicast
router.

Just like commit bd4265fe36 ("bridge: Only flood unregistered groups
to routers") did for IPv4, let's do the same for IPv6 with the same
reasoning.

Signed-off-by: Linus Lüssing <linus.luessing@web.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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