[NETNS][IPV6] rt6_info - make rt6_info accessed as a pointer

This patch make mindless changes and prepares the code to use dynamic
allocation for rt6_info structure. The code accesses the rt6_info
structure as a pointer instead of a global static variable.

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 2bcbfb8..e0caed2 100644
--- a/include/net/ip6_route.h
+++ b/include/net/ip6_route.h
@@ -34,11 +34,11 @@
 #define RT6_LOOKUP_F_REACHABLE	0x2
 #define RT6_LOOKUP_F_HAS_SADDR	0x4
 
-extern struct rt6_info	ip6_null_entry;
+extern struct rt6_info	*ip6_null_entry;
 
 #ifdef CONFIG_IPV6_MULTIPLE_TABLES
-extern struct rt6_info	ip6_prohibit_entry;
-extern struct rt6_info	ip6_blk_hole_entry;
+extern struct rt6_info	*ip6_prohibit_entry;
+extern struct rt6_info	*ip6_blk_hole_entry;
 #endif
 
 extern void			ip6_route_input(struct sk_buff *skb);