Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h
index 3ef82d3..676f1ff 100644
--- a/include/linux/netpoll.h
+++ b/include/linux/netpoll.h
@@ -31,8 +31,6 @@
 	bool ipv6;
 	u16 local_port, remote_port;
 	u8 remote_mac[ETH_ALEN];
-
-	struct work_struct cleanup_work;
 };
 
 struct netpoll_info {
@@ -63,7 +61,7 @@
 int __netpoll_setup(struct netpoll *np, struct net_device *ndev);
 int netpoll_setup(struct netpoll *np);
 void __netpoll_cleanup(struct netpoll *np);
-void __netpoll_free_async(struct netpoll *np);
+void __netpoll_free(struct netpoll *np);
 void netpoll_cleanup(struct netpoll *np);
 void netpoll_send_skb_on_dev(struct netpoll *np, struct sk_buff *skb,
 			     struct net_device *dev);