nexthop: vxlan: Convert to new notification info

Convert the sole listener of the nexthop notification chain (the VXLAN
driver) to the new notification info.
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/vxlan.c

@@ -4684,9 +4684,14 @@ static void vxlan_fdb_nh_flush(struct nexthop *nh)
 static int vxlan_nexthop_event(struct notifier_block *nb,
 			       unsigned long event, void *ptr)
 {
-	struct nexthop *nh = ptr;
+	struct nh_notifier_info *info = ptr;
+	struct nexthop *nh;
+
+	if (event != NEXTHOP_EVENT_DEL)
+		return NOTIFY_DONE;
 
-	if (!nh || event != NEXTHOP_EVENT_DEL)
+	nh = nexthop_find_by_id(info->net, info->id);
+	if (!nh)
 		return NOTIFY_DONE;
 
 	vxlan_fdb_nh_flush(nh);

net/ipv4/nexthop.c

@@ -151,7 +151,7 @@ static int call_nexthop_notifiers(struct net *net,
 	}
 
 	err = blocking_notifier_call_chain(&net->nexthop.notifier_chain,
-					   event_type, nh);
+					   event_type, &info);
 	nh_notifier_info_fini(&info);
 
 	return notifier_to_errno(err);