From c92a59eca86f5d13ae4d481c3bae6b54609fe006 Mon Sep 17 00:00:00 2001
From: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Date: Thu, 22 Aug 2013 12:07:35 +0800
Subject: [PATCH] ipv6: handle Redirect ICMP Message with no Redirected Header
 option

rfc 4861 says the Redirected Header option is optional, so
the kernel should not drop the Redirect Message that has no
Redirected Header option. In this patch, the function
ip6_redirect_no_header() is introduced to deal with that
condition.

Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
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