Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/arch/sparc/kernel/ds.c b/arch/sparc/kernel/ds.c
index f87265a..bbf59b3 100644
--- a/arch/sparc/kernel/ds.c
+++ b/arch/sparc/kernel/ds.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /* ds.c: Domain Services driver for Logical Domains
  *
  * Copyright (C) 2007, 2008 David S. Miller <davem@davemloft.net>
@@ -876,7 +877,7 @@
 
 static void ds_conn_reset(struct ds_info *dp)
 {
-	printk(KERN_ERR "ds-%llu: ds_conn_reset() from %pf\n",
+	printk(KERN_ERR "ds-%llu: ds_conn_reset() from %ps\n",
 	       dp->id, __builtin_return_address(0));
 }