treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 378

Based on 1 normalized pattern(s):

  licensed under the gnu general public license version 2 gplv2

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 5 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Armijn Hemel <armijn@tjaldur.nl>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531081036.993848054@linutronix.deSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

scripts/extract-vmlinux

 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-only
 # ----------------------------------------------------------------------
 # extract-vmlinux - Extract uncompressed vmlinux from a kernel image
 #
@@ -7,7 +8,6 @@
 #
 # (c) 2011      Corentin Chary <corentin.chary@gmail.com>
 #
-# Licensed under the GNU General Public License, version 2 (GPLv2).
 # ----------------------------------------------------------------------
 
 check_vmlinux()

scripts/recordmcount.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * recordmcount.c: construct a table of the locations of calls to 'mcount'
  * so that ftrace can find them quickly.
  * Copyright 2009 John F. Reiser <jreiser@BitWagon.com>.  All rights reserved.
- * Licensed under the GNU General Public License, version 2 (GPLv2).
  *
  * Restructured to fit Linux format, as well as other updates:
  *  Copyright 2010 Steven Rostedt <srostedt@redhat.com>, Red Hat Inc.

scripts/recordmcount.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * recordmcount.h
  *
@@ -15,8 +16,6 @@
  *
  * This conversion to macros was done by:
  * Copyright 2010 Steven Rostedt <srostedt@redhat.com>, Red Hat Inc.
- *
- * Licensed under the GNU General Public License, version 2 (GPLv2).
  */
 #undef append_func
 #undef is_fake_mcount

scripts/sortextable.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * sortextable.c: Sort the kernel's exception table
  *
@@ -6,7 +7,6 @@
  * Based on code taken from recortmcount.c which is:
  *
  * Copyright 2009 John F. Reiser <jreiser@BitWagon.com>.  All rights reserved.
- * Licensed under the GNU General Public License, version 2 (GPLv2).
  *
  * Restructured to fit Linux format, as well as other updates:
  *  Copyright 2010 Steven Rostedt <srostedt@redhat.com>, Red Hat Inc.

scripts/sortextable.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * sortextable.h
  *
@@ -7,9 +8,6 @@
  *
  * Copyright 2009 John F. Reiser <jreiser@BitWagon.com>.  All rights reserved.
  * Copyright 2010 Steven Rostedt <srostedt@redhat.com>, Red Hat Inc.
- *
- *
- * Licensed under the GNU General Public License, version 2 (GPLv2).
  */
 
 #undef extable_ent_size