CC net/core/net_namespace.oThanks, this has been fixed with commit ebe47d47b7b7fed72dabcce4717da727b4e2367d
net/core/net_namespace.c: In function ânet_ns_initâ:
net/core/net_namespace.c:223: error: implicit declaration of function ânet_alloc_genericâ
net/core/net_namespace.c:223: warning: assignment makes pointer from integer without a cast
make[2]: *** [net/core/net_namespace.o] Error 1
make[1]: *** [net/core] Error 2
make: *** [net] Error 2