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From: David Miller <davem@davemloft.net>
Subject: Re: With disable_ipv6 set to 1 on an interface, ff00:/8 and
 fe80::/64 are still added on device UP
Date: Tue, 20 Jul 2010 13:48:51 -0700 (PDT)
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From: Brian Haley <brian.haley@hp.com>
Date: Tue, 20 Jul 2010 16:34:30 -0400

> I believe the easiest way to fix this is the following patch, can
> you please test it?
 ...
> If the interface has IPv6 disabled, don't add a multicast or
> link-local route since we won't be adding a link-local address.
> 
> Reported-by: Mahesh Kelkar <maheshkelkar@gmail.com>
> Signed-off-by: Brian Haley <brian.haley@hp.com>

This looks good to me, let me know when it has been tested.