diff -Nupr src.orig/net/ipv6/netfilter.c src/net/ipv6/netfilter.c

--- src.orig/net/ipv6/netfilter.c	2020-09-03 11:48:30.779727005 -0400

+++ src/net/ipv6/netfilter.c	2020-09-03 11:48:51.172790803 -0400

@@ -112,6 +112,8 @@ static int nf_ip6_reroute(struct sk_buff

 	return 0;

 }

+#include "kpatch-macros.h"

+

 static int nf_ip6_route(struct net *net, struct dst_entry **dst,

 			struct flowi *fl, bool strict)

 {

@@ -125,6 +127,9 @@ static int nf_ip6_route(struct net *net,

 	struct dst_entry *result;

 	int err;

+	if (!jiffies)

+		printk("kpatch nf_ip6_route foo\n");

+

 	result = ip6_route_output(net, sk, &fl->u.ip6);

 	err = result->error;

 	if (err)