--- zzzz-none-000/linux-4.4.271/net/bridge/netfilter/ebtables.c	2021-06-03 06:22:09.000000000 +0000
+++ hawkeye-5590-750/linux-4.4.271/net/bridge/netfilter/ebtables.c	2023-04-19 10:22:30.000000000 +0000
@@ -2464,11 +2464,13 @@
 	}
 
 	printk(KERN_INFO "Ebtables v2.0 registered\n");
+	brnf_call_ebtables = 1;
 	return 0;
 }
 
 static void __exit ebtables_fini(void)
 {
+	brnf_call_ebtables = 0;
 	nf_unregister_sockopt(&ebt_sockopts);
 	xt_unregister_target(&ebt_standard_target);
 	printk(KERN_INFO "Ebtables v2.0 unregistered\n");