ipv6: Protect ->mc_forwarding access with CONFIG_IPV6_MROUTE

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2012-12-04 14:46:34 -05:00
commit b1afce9538