netns: ip6mr: dynamically allocates vif6_table

Preliminary work to make IPv6 multicast forwarding netns-aware.

Dynamically allocates interface table vif6_table and moves it to 
struct netns_ipv6, and updates MIF_EXISTS() macro. 

At the moment, vif6_table is only referenced in init_net.

Signed-off-by: Benjamin Thery <benjamin.thery@bull.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/net/netns/ipv6.h b/include/net/netns/ipv6.h
index 8a0a67d073b..4ab0cb01a7a 100644
--- a/include/net/netns/ipv6.h
+++ b/include/net/netns/ipv6.h
@@ -57,6 +57,8 @@ struct netns_ipv6 {
         struct sock             *igmp_sk;
 #ifdef CONFIG_IPV6_MROUTE
         struct sock             *mroute6_sk;
+        struct mif_device       *vif6_table;
+        int                     maxvif;
 #endif
 };
 #endif