diff -Nupr src/kernel/reboot.c src/kernel/reboot.c
--- src/kernel/reboot.c	2020-03-11 11:23:30.502684349 +0000
+++ src/kernel/reboot.c	2020-03-11 11:30:24.412330397 +0000
@@ -393,8 +393,15 @@ SYSCALL_DEFINE4(reboot, int, magic1, int
 	return ret;
 }
 
+void kpatch_bar(void)
+{
+	if (!jiffies)
+		printk("kpatch_foo\n");
+}
+
 static void deferred_cad(struct work_struct *dummy)
 {
+	kpatch_bar();
 	kernel_restart(NULL);
 }