From: Eric Dumazet <edumazet@google.com>
Date: Tue, 5 Feb 2013 20:22:50 +0000 (+0000)
Subject: macvlan: add multicast filter
X-Git-Tag: v3.9-rc1~139^2~143
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cd431e738509e74726055390c9e5e81e8e7e03ec;p=pandora-kernel.git

macvlan: add multicast filter

Setting up IPv6 addresses on configurations with many macvlans
is not really working, as many multicast messages are dropped.

Add a multicast filter to macvlan to reduce the amount of cloned
skbs and overhead.

Successfully tested with 1024 macvlans on one ethernet device.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Ben Greear <greearb@candelatech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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