netfilter undefined reference

net/built-in.o: In function `qtaguid_find_sk':
/home/shark/hadk/out/target/product/x2/obj/KERNEL_OBJ/../../../../../../kernel/leeco/msm8996/net/netfilter/xt_qtaguid.c:1601: undefined reference to `xt_socket_get6_sk'
/home/shark/hadk/out/target/product/x2/obj/KERNEL_OBJ/../../../../../../kernel/leeco/msm8996/net/netfilter/xt_qtaguid.c:1604: undefined reference to `xt_socket_get4_sk'
make[1]: *** [vmlinux] Error 1
make[1]: Leaving directory `/home/shark/hadk/out/target/product/x2/obj/KERNEL_OBJ'
make: *** [sub-make] Error 2
make: Leaving directory `/home/shark/hadk/kernel/leeco/msm8996'
ninja: build stopped: subcommand failed.
make: *** [ninja_wrapper] Error 1