netns: ipmr: dynamically allocate mfc_cache_array
Preliminary work to make IPv4 multicast routing netns-aware.
Dynamically allocate IPv4 multicast forwarding cache, mfc_cache_array,
and move it to struct netns_ipv4.
At the moment, mfc_cache_array is only referenced in init_net.
Signed-off-by: Benjamin Thery <benjamin.thery@bull.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index edbcccb..0b4285a 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -57,6 +57,7 @@
#ifdef CONFIG_IP_MROUTE
struct sock *mroute_sk;
+ struct mfc_cache **mfc_cache_array;
struct vif_device *vif_table;
int maxvif;
#endif