Re: [PATCH] ipv6: Fix for adding multicast route for loopback device automatically.

From: Li Wei <redacted>
Date: Wed, 07 Dec 2011 15:23:45 +0800

There is no obvious reason to add a default multicast route for loopback
devices, otherwise there would be a route entry whose dst.error set to
-ENETUNREACH that would blocking all multicast packets.

Signed-off-by: Li Wei <redacted>

I still do not understand the purpose of this change, what problems
does the current behavior cause?

And can you be sure that by making this change, you are not breaking
something, somewhere, that depends upon the current behavior?