syscalls/preadv: Make make check happy

1) Relicense to GPL v2+ for preadv.h.
2) Add LTP Copyright.

Signed-off-by: Xiao Yang <[email protected]>
Reviewed-by: Petr Vorel <[email protected]>

Author: yangx-jy

testcases/kernel/syscalls/preadv/preadv.h

@@ -1,18 +1,9 @@
-/*
-* Copyright (c) 2015 Fujitsu Ltd.
-* Author: Xiao Yang <[email protected]>
-*
-* This program is free software; you can redistribute it and/or modify it
-* under the terms of version 2 of the GNU General Public License as
-* published by the Free Software Foundation.
-*
-* This program is distributed in the hope that it would be useful, but
-* WITHOUT ANY WARRANTY; without even the implied warranty of
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-*
-* You should have received a copy of the GNU General Public License
-* alone with this program.
-*/
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * Copyright (c) 2015 Fujitsu Ltd.
+ * Author: Xiao Yang <[email protected]>
+ * Copyright (c) Linux Test Project, 2016-2023
+ */
 
 #ifndef PREADV_H
 #define PREADV_H

testcases/kernel/syscalls/preadv/preadv01.c

@@ -1,8 +1,9 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 /*
-* Copyright (c) 2015 Fujitsu Ltd.
-* Author: Xiao Yang <[email protected]>
-*/
+ * Copyright (c) 2015 Fujitsu Ltd.
+ * Author: Xiao Yang <[email protected]>
+ * Copyright (c) Linux Test Project, 2016-2023
+ */
 
 /*\
  * [Description]
@@ -38,7 +39,7 @@ static struct tcase {
 	{1, CHUNK*3/2, CHUNK/2, 'b'}
 };
 
-void verify_preadv(unsigned int n)
+static void verify_preadv(unsigned int n)
 {
 	int i;
 	char *vec;
@@ -81,7 +82,7 @@ void verify_preadv(unsigned int n)
 		 "with content '%c' expectedly", tc->size, tc->content);
 }
 
-void setup(void)
+static void setup(void)
 {
 	char buf[CHUNK];
 
@@ -94,7 +95,7 @@ void setup(void)
 	SAFE_WRITE(SAFE_WRITE_ALL, fd, buf, sizeof(buf));
 }
 
-void cleanup(void)
+static void cleanup(void)
 {
 	if (fd > 0)
 		SAFE_CLOSE(fd);

testcases/kernel/syscalls/preadv/preadv02.c

@@ -1,8 +1,9 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 /*
-* Copyright (c) 2015-2016 Fujitsu Ltd.
-* Author: Xiao Yang <[email protected]>
-*/
+ * Copyright (c) 2015-2016 Fujitsu Ltd.
+ * Author: Xiao Yang <[email protected]>
+ * Copyright (c) Linux Test Project, 2017-2023
+ */
 
 /*\
  * [Description]

testcases/kernel/syscalls/preadv/preadv03.c

@@ -2,6 +2,7 @@
 /*
  * Copyright (c) 2018 FUJITSU LIMITED. All rights reserved.
  * Author: Xiao Yang <[email protected]>
+ * Copyright (c) Linux Test Project, 2019-2023
  */
 
 /*\