--- zzzz-none-000/linux-5.4.213/include/net/neighbour.h	2022-09-15 10:04:56.000000000 +0000
+++ miami-7690-761/linux-5.4.213/include/net/neighbour.h	2024-05-29 11:20:02.000000000 +0000
@@ -241,6 +241,11 @@
 	return p->tbl->family;
 }
 
+struct neigh_mac_update {
+	unsigned char old_mac[ALIGN(MAX_ADDR_LEN, sizeof(unsigned long))];
+	unsigned char update_mac[ALIGN(MAX_ADDR_LEN, sizeof(unsigned long))];
+};
+
 #define NEIGH_PRIV_ALIGN	sizeof(long long)
 #define NEIGH_ENTRY_SIZE(size)	ALIGN((size), NEIGH_PRIV_ALIGN)
 
@@ -376,6 +381,9 @@
 void pneigh_for_each(struct neigh_table *tbl,
 		     void (*cb)(struct pneigh_entry *));
 
+extern void neigh_mac_update_register_notify(struct notifier_block *nb);
+extern void neigh_mac_update_unregister_notify(struct notifier_block *nb);
+
 struct neigh_seq_state {
 	struct seq_net_private p;
 	struct neigh_table *tbl;