From 45ce0fd19da9ca21635c367d504b9e4904621ff4 Mon Sep 17 00:00:00 2001
From: Felix Jia <felix.jia@alliedtelesis.co.nz>
Date: Thu, 26 Jan 2017 16:59:18 +1300
Subject: net/ipv6: support more tunnel interfaces for EUI64 link-local
 generation

Signed-off-by: Felix Jia <felix.jia@alliedtelesis.co.nz>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/ip6_vti.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'net/ipv6/ip6_vti.c')

diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
index d82042c8d8fd..c795fee372c4 100644
--- a/net/ipv6/ip6_vti.c
+++ b/net/ipv6/ip6_vti.c
@@ -49,6 +49,7 @@
 #include <net/xfrm.h>
 #include <net/net_namespace.h>
 #include <net/netns/generic.h>
+#include <linux/etherdevice.h>
 
 #define IP6_VTI_HASH_SIZE_SHIFT  5
 #define IP6_VTI_HASH_SIZE (1 << IP6_VTI_HASH_SIZE_SHIFT)
@@ -842,6 +843,9 @@ static void vti6_dev_setup(struct net_device *dev)
 	dev->flags |= IFF_NOARP;
 	dev->addr_len = sizeof(struct in6_addr);
 	netif_keep_dst(dev);
+	/* This perm addr will be used as interface identifier by IPv6 */
+	dev->addr_assign_type = NET_ADDR_RANDOM;
+	eth_random_addr(dev->perm_addr);
 }
 
 /**
-- 
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