--- a/include/net/neighbour.h	2023-12-01 12:42:53.249733734 -0500
+++ b/include/net/neighbour.h	2023-12-01 12:43:07.539739154 -0500
@@ -157,7 +157,7 @@ struct neighbour {
 	struct list_head	gc_list;
 	struct rcu_head		rcu;
 	struct net_device	*dev;
-	u8			primary_key[0];
+	u8			primary_key[];
 } __randomize_layout;
 
 struct neigh_ops {