[NETNS][IPV6] route6 - Pass the network namespace parameter to rt6_lookup

Add a network namespace parameter to rt6_lookup().

Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: Benjamin Thery <benjamin.thery@bull.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h
index 79dce49..92004c5 100644
--- a/include/net/ip6_route.h
+++ b/include/net/ip6_route.h
@@ -69,7 +69,8 @@
 					   int dstlen, int srclen,
 					   int metric, __u32 flags);
 
-extern struct rt6_info		*rt6_lookup(struct in6_addr *daddr,
+extern struct rt6_info		*rt6_lookup(struct net *net,
+					    struct in6_addr *daddr,
 					    struct in6_addr *saddr,
 					    int oif, int flags);