--- zzzz-none-000/linux-4.9.231/net/xfrm/Makefile	2020-07-22 07:10:54.000000000 +0000
+++ falcon-5590-729/linux-4.9.231/net/xfrm/Makefile	2022-03-30 12:03:36.000000000 +0000
@@ -9,3 +9,4 @@
 obj-$(CONFIG_XFRM_ALGO) += xfrm_algo.o
 obj-$(CONFIG_XFRM_USER) += xfrm_user.o
 obj-$(CONFIG_XFRM_IPCOMP) += xfrm_ipcomp.o
+obj-$(CONFIG_XFRM_INTERFACE) += xfrm_interface.o