From: Steffen Klassert <steffen.klassert@secunet.com>
Date: Wed, 23 Nov 2011 02:12:13 +0000 (+0000)
Subject: route: Use the device mtu as the default for blackhole routes
X-Git-Tag: v3.2-rc5~56^2~32
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6b600b26c0215bf9ed04062ecfacf0bc20e2588c;p=pandora-kernel.git

route: Use the device mtu as the default for blackhole routes

As it is, we return null as the default mtu of blackhole routes.
This may lead to a propagation of a bogus pmtu if the default_mtu
method of a blackhole route is invoked. So return dst->dev->mtu
as the default mtu instead.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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