29 files changed, 29 insertions, 112 deletions

diff --git a/tools/firmware/ihex2fw.c b/tools/firmware/ihex2fw.c
index 8925b60e51f5..2ebed47680b1 100644
--- a/tools/firmware/ihex2fw.c
+++ b/tools/firmware/ihex2fw.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Parser/loader for IHEX formatted data.
  *
  * Copyright © 2008 David Woodhouse <dwmw2@infradead.org>
  * Copyright © 2005 Jan Harkes <jaharkes@cs.cmu.edu>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <stdint.h>
diff --git a/tools/gpio/gpio-event-mon.c b/tools/gpio/gpio-event-mon.c
index c864544efe05..30ed0e06f52a 100644
--- a/tools/gpio/gpio-event-mon.c
+++ b/tools/gpio/gpio-event-mon.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * gpio-event-mon - monitor GPIO line events from userspace
  *
  * Copyright (C) 2016 Linus Walleij
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
  * Usage:
  *      gpio-event-mon -n <device-name> -o <offset>
  */
diff --git a/tools/gpio/gpio-hammer.c b/tools/gpio/gpio-hammer.c
index 4bcb234c0fca..0e0060a6eb34 100644
--- a/tools/gpio/gpio-hammer.c
+++ b/tools/gpio/gpio-hammer.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * gpio-hammer - example swiss army knife to shake GPIO lines on a system
  *
  * Copyright (C) 2016 Linus Walleij
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
  * Usage:
  *      gpio-hammer -n <device-name> -o <offset1> -o <offset2>
  */
diff --git a/tools/gpio/gpio-utils.c b/tools/gpio/gpio-utils.c
index cf7e2f3419ee..53470de6a502 100644
--- a/tools/gpio/gpio-utils.c
+++ b/tools/gpio/gpio-utils.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * GPIO tools - helpers library for the GPIO tools
  *
  * Copyright (C) 2015 Linus Walleij
  * Copyright (C) 2016 Bamvor Jian Zhang
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <unistd.h>
diff --git a/tools/gpio/gpio-utils.h b/tools/gpio/gpio-utils.h
index 344ea041f8d4..cf37f13f3dcb 100644
--- a/tools/gpio/gpio-utils.h
+++ b/tools/gpio/gpio-utils.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * GPIO tools - utility helpers library for the GPIO tools
  *
@@ -7,9 +8,6 @@
  * Copyright (c) 2010 Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
  * Copyright (c) 2008 Jonathan Cameron
  * *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 #ifndef _GPIO_UTILS_H_
 #define _GPIO_UTILS_H_
diff --git a/tools/gpio/lsgpio.c b/tools/gpio/lsgpio.c
index eb3f56efd215..e1430f504c13 100644
--- a/tools/gpio/lsgpio.c
+++ b/tools/gpio/lsgpio.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * lsgpio - example on how to list the GPIO lines on a system
  *
  * Copyright (C) 2015 Linus Walleij
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
  * Usage:
  *      lsgpio <-n device-name>
  */
diff --git a/tools/iio/iio_event_monitor.c b/tools/iio/iio_event_monitor.c
index 7bf9bde28bcc..f115d166c985 100644
--- a/tools/iio/iio_event_monitor.c
+++ b/tools/iio/iio_event_monitor.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /* Industrialio event test code.
  *
  * Copyright (c) 2011-2012 Lars-Peter Clausen <lars@metafoo.de>
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
  * This program is primarily intended as an example application.
  * Reads the current buffer setup from sysfs and starts a short capture
  * from the specified device, pretty printing the result after appropriate
diff --git a/tools/iio/iio_generic_buffer.c b/tools/iio/iio_generic_buffer.c
index 84545666a09c..34d63bcebcd2 100644
--- a/tools/iio/iio_generic_buffer.c
+++ b/tools/iio/iio_generic_buffer.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /* Industrialio buffer test code.
  *
  * Copyright (c) 2008 Jonathan Cameron
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
  * This program is primarily intended as an example application.
  * Reads the current buffer setup from sysfs and starts a short capture
  * from the specified device, pretty printing the result after appropriate
@@ -15,7 +12,6 @@
  * generic_buffer -n <device_name> -t <trigger_name>
  * If trigger name is not specified the program assumes you want a dataready
  * trigger associated with the device and goes looking for it.
- *
  */
 
 #include <unistd.h>
diff --git a/tools/iio/iio_utils.c b/tools/iio/iio_utils.c
index 7a6d61c6c012..a22b6e8fad46 100644
--- a/tools/iio/iio_utils.c
+++ b/tools/iio/iio_utils.c
@@ -1,10 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /* IIO - useful set of util functionality
  *
  * Copyright (c) 2008 Jonathan Cameron
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 #include <string.h>
 #include <stdlib.h>
diff --git a/tools/iio/iio_utils.h b/tools/iio/iio_utils.h
index 8b379da26e35..74bde4fde2c8 100644
--- a/tools/iio/iio_utils.h
+++ b/tools/iio/iio_utils.h
@@ -1,13 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 #ifndef _IIO_UTILS_H_
 #define _IIO_UTILS_H_
 
 /* IIO - useful set of util functionality
  *
  * Copyright (c) 2008 Jonathan Cameron
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <stdint.h>
diff --git a/tools/iio/lsiio.c b/tools/iio/lsiio.c
index ab0f5cf16025..2cf56fb2449b 100644
--- a/tools/iio/lsiio.c
+++ b/tools/iio/lsiio.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Industrial I/O utilities - lsiio.c
  *
  * Copyright (c) 2010 Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <string.h>
diff --git a/tools/perf/arch/arm/util/dwarf-regs.c b/tools/perf/arch/arm/util/dwarf-regs.c
index 8bb176a37990..fc5f71c91802 100644
--- a/tools/perf/arch/arm/util/dwarf-regs.c
+++ b/tools/perf/arch/arm/util/dwarf-regs.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Mapping of DWARF debug register numbers into register names.
  *
  * Copyright (C) 2010 Will Deacon, ARM Ltd.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <stddef.h>
diff --git a/tools/perf/arch/arm64/util/dwarf-regs.c b/tools/perf/arch/arm64/util/dwarf-regs.c
index cd764a9fd098..b047b882c5b1 100644
--- a/tools/perf/arch/arm64/util/dwarf-regs.c
+++ b/tools/perf/arch/arm64/util/dwarf-regs.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Mapping of DWARF debug register numbers into register names.
  *
  * Copyright (C) 2010 Will Deacon, ARM Ltd.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <errno.h>
diff --git a/tools/perf/arch/arm64/util/sym-handling.c b/tools/perf/arch/arm64/util/sym-handling.c
index 0051b1ee8450..27fcf24d6850 100644
--- a/tools/perf/arch/arm64/util/sym-handling.c
+++ b/tools/perf/arch/arm64/util/sym-handling.c
@@ -1,7 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
  *
  * Copyright (C) 2015 Naveen N. Rao, IBM Corporation
  */
diff --git a/tools/perf/arch/powerpc/util/sym-handling.c b/tools/perf/arch/powerpc/util/sym-handling.c
index 10a44e946f77..b0a67eaf2ce8 100644
--- a/tools/perf/arch/powerpc/util/sym-handling.c
+++ b/tools/perf/arch/powerpc/util/sym-handling.c
@@ -1,7 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
  *
  * Copyright (C) 2015 Naveen N. Rao, IBM Corporation
  */
diff --git a/tools/perf/util/namespaces.c b/tools/perf/util/namespaces.c
index aed170bd4384..023c4efd788d 100644
--- a/tools/perf/util/namespaces.c
+++ b/tools/perf/util/namespaces.c
@@ -1,7 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
  *
  * Copyright (C) 2017 Hari Bathini, IBM Corporation
  */
diff --git a/tools/perf/util/namespaces.h b/tools/perf/util/namespaces.h
index d5f46c09ea31..15a5a276c478 100644
--- a/tools/perf/util/namespaces.h
+++ b/tools/perf/util/namespaces.h
@@ -1,7 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
  *
  * Copyright (C) 2017 Hari Bathini, IBM Corporation
  */
diff --git a/tools/power/acpi/tools/acpidbg/acpidbg.c b/tools/power/acpi/tools/acpidbg/acpidbg.c
index 4308362d7068..3d2bfd716028 100644
--- a/tools/power/acpi/tools/acpidbg/acpidbg.c
+++ b/tools/power/acpi/tools/acpidbg/acpidbg.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * ACPI AML interfacing userspace utility
  *
  * Copyright (C) 2015, Intel Corporation
  * Authors: Lv Zheng <lv.zheng@intel.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <acpi/acpi.h>
diff --git a/tools/testing/selftests/gpio/gpio-mockup-chardev.c b/tools/testing/selftests/gpio/gpio-mockup-chardev.c
index d587c814a9ca..73ead8828d3a 100644
--- a/tools/testing/selftests/gpio/gpio-mockup-chardev.c
+++ b/tools/testing/selftests/gpio/gpio-mockup-chardev.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * GPIO chardev test helper
  *
  * Copyright (C) 2016 Bamvor Jian Zhang
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #define _GNU_SOURCE
diff --git a/tools/testing/selftests/ia64/aliasing-test.c b/tools/testing/selftests/ia64/aliasing-test.c
index 62a190d45f38..1ad6896f10f7 100644
--- a/tools/testing/selftests/ia64/aliasing-test.c
+++ b/tools/testing/selftests/ia64/aliasing-test.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Exercise /dev/mem mmap cases that have been troublesome in the past
  *
  * (c) Copyright 2007 Hewlett-Packard Development Company, L.P.
  *      Bjorn Helgaas <bjorn.helgaas@hp.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <stdlib.h>
diff --git a/tools/testing/selftests/powerpc/dscr/dscr.h b/tools/testing/selftests/powerpc/dscr/dscr.h
index cdb840bc54f2..13e9b9e28e2c 100644
--- a/tools/testing/selftests/powerpc/dscr/dscr.h
+++ b/tools/testing/selftests/powerpc/dscr/dscr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * POWER Data Stream Control Register (DSCR)
  *
@@ -6,10 +7,6 @@
  *
  * Copyright 2012, Anton Blanchard, IBM Corporation.
  * Copyright 2015, Anshuman Khandual, IBM Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
  */
 #ifndef _SELFTESTS_POWERPC_DSCR_DSCR_H
 #define _SELFTESTS_POWERPC_DSCR_DSCR_H
diff --git a/tools/testing/selftests/powerpc/dscr/dscr_default_test.c b/tools/testing/selftests/powerpc/dscr/dscr_default_test.c
index 9e1a37e93b63..288a4e2ad156 100644
--- a/tools/testing/selftests/powerpc/dscr/dscr_default_test.c
+++ b/tools/testing/selftests/powerpc/dscr/dscr_default_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * POWER Data Stream Control Register (DSCR) default test
  *
@@ -7,10 +8,6 @@
  *
  * Copyright 2012, Anton Blanchard, IBM Corporation.
  * Copyright 2015, Anshuman Khandual, IBM Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
  */
 #include "dscr.h"
 
diff --git a/tools/testing/selftests/powerpc/dscr/dscr_explicit_test.c b/tools/testing/selftests/powerpc/dscr/dscr_explicit_test.c
index ad9c3ec26048..aefcd8d8759b 100644
--- a/tools/testing/selftests/powerpc/dscr/dscr_explicit_test.c
+++ b/tools/testing/selftests/powerpc/dscr/dscr_explicit_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * POWER Data Stream Control Register (DSCR) explicit test
  *
@@ -13,10 +14,6 @@
  *
  * Copyright 2012, Anton Blanchard, IBM Corporation.
  * Copyright 2015, Anshuman Khandual, IBM Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
  */
 #include "dscr.h"
 
diff --git a/tools/testing/selftests/powerpc/dscr/dscr_inherit_exec_test.c b/tools/testing/selftests/powerpc/dscr/dscr_inherit_exec_test.c
index c8c240accc0c..7c1cb46397c6 100644
--- a/tools/testing/selftests/powerpc/dscr/dscr_inherit_exec_test.c
+++ b/tools/testing/selftests/powerpc/dscr/dscr_inherit_exec_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * POWER Data Stream Control Register (DSCR) fork exec test
  *
@@ -12,10 +13,6 @@
  *
  * Copyright 2012, Anton Blanchard, IBM Corporation.
  * Copyright 2015, Anshuman Khandual, IBM Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
  */
 #include "dscr.h"
 
diff --git a/tools/testing/selftests/powerpc/dscr/dscr_inherit_test.c b/tools/testing/selftests/powerpc/dscr/dscr_inherit_test.c
index 3e5a6d195e9a..04297a69ab59 100644
--- a/tools/testing/selftests/powerpc/dscr/dscr_inherit_test.c
+++ b/tools/testing/selftests/powerpc/dscr/dscr_inherit_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * POWER Data Stream Control Register (DSCR) fork test
  *
@@ -13,10 +14,6 @@
  *
  * Copyright 2012, Anton Blanchard, IBM Corporation.
  * Copyright 2015, Anshuman Khandual, IBM Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
  */
 #include "dscr.h"
 
diff --git a/tools/testing/selftests/powerpc/dscr/dscr_sysfs_test.c b/tools/testing/selftests/powerpc/dscr/dscr_sysfs_test.c
index 1899bd85121f..02f6b4efde14 100644
--- a/tools/testing/selftests/powerpc/dscr/dscr_sysfs_test.c
+++ b/tools/testing/selftests/powerpc/dscr/dscr_sysfs_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * POWER Data Stream Control Register (DSCR) sysfs interface test
  *
@@ -6,10 +7,6 @@
  * well verified from their sysfs interfaces.
  *
  * Copyright 2015, Anshuman Khandual, IBM Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
  */
 #include "dscr.h"
 
diff --git a/tools/testing/selftests/powerpc/dscr/dscr_sysfs_thread_test.c b/tools/testing/selftests/powerpc/dscr/dscr_sysfs_thread_test.c
index ad97b592eccc..37be2c25f277 100644
--- a/tools/testing/selftests/powerpc/dscr/dscr_sysfs_thread_test.c
+++ b/tools/testing/selftests/powerpc/dscr/dscr_sysfs_thread_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * POWER Data Stream Control Register (DSCR) sysfs thread test
  *
@@ -7,10 +8,6 @@
  * executing on individual CPUs on the system.
  *
  * Copyright 2015, Anshuman Khandual, IBM Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
  */
 #define _GNU_SOURCE
 #include "dscr.h"
diff --git a/tools/testing/selftests/powerpc/dscr/dscr_user_test.c b/tools/testing/selftests/powerpc/dscr/dscr_user_test.c
index 77d16b5e7dca..eaf785d11eed 100644
--- a/tools/testing/selftests/powerpc/dscr/dscr_user_test.c
+++ b/tools/testing/selftests/powerpc/dscr/dscr_user_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * POWER Data Stream Control Register (DSCR) SPR test
  *
@@ -14,10 +15,6 @@
  *
  * Copyright 2013, Anton Blanchard, IBM Corporation.
  * Copyright 2015, Anshuman Khandual, IBM Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
  */
 #include "dscr.h"
 
diff --git a/tools/wmi/dell-smbios-example.c b/tools/wmi/dell-smbios-example.c
index 9d3bde081249..1f3e7ab14b68 100644
--- a/tools/wmi/dell-smbios-example.c
+++ b/tools/wmi/dell-smbios-example.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  Sample application for SMBIOS communication over WMI interface
  *  Performs the following:
@@ -6,10 +7,6 @@
  *  - Simple activation of a token
  *
  *  Copyright (C) 2017 Dell, Inc.
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation.
  */
 
 #include <errno.h>