From bbeb0eadcf9fe74fb2b9b1a6fea82cd538b1e556 Mon Sep 17 00:00:00 2001
From: Peter Christensen <pch@ordbogen.com>
Date: Thu, 8 May 2014 11:15:37 +0200
Subject: [PATCH] macvlan: Don't propagate IFF_ALLMULTI changes on down
 interfaces.

Clearing the IFF_ALLMULTI flag on a down interface could cause an allmulti
overflow on the underlying interface.

Attempting the set IFF_ALLMULTI on the underlying interface would cause an
error and the log message:

"allmulti touches root, set allmulti failed."

Signed-off-by: Peter Christensen <pch@ordbogen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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