Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/lib/bsearch.c b/lib/bsearch.c
index 18b445b..8baa839 100644
--- a/lib/bsearch.c
+++ b/lib/bsearch.c
@@ -1,16 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * A generic implementation of binary search for the Linux kernel
  *
  * Copyright (C) 2008-2009 Ksplice, Inc.
  * Author: Tim Abbott <tabbott@ksplice.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2.
  */
 
 #include <linux/export.h>
 #include <linux/bsearch.h>
+#include <linux/kprobes.h>
 
 /*
  * bsearch - binary search an array of elements
@@ -53,3 +51,4 @@
 	return NULL;
 }
 EXPORT_SYMBOL(bsearch);
+NOKPROBE_SYMBOL(bsearch);