Re: [Batch 17 patch 31/57] treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 482

["Enrico Weigelt, metux IT consult" <lkml@metux.net>]

On 04.06.19 08:11, Thomas Gleixner wrote:
> From: Thomas Gleixner tglx@linutronix.de
> 
> Based on 1 normalized pattern(s):
> 
>    this work is licensed under the terms of the gnu gpl version 2
> 
> extracted by the scancode license scanner the SPDX license identifier
> 
>    GPL-2.0-only
> 
> has been chosen to replace the boilerplate/reference in 48 file(s).
> 
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
> 
> ---
> https://git.kernel.org/pub/scm/linux/kernel/git/tglx/linux-spdx.git/commit/?h=batch17&id=ac5d17b74537
> ---
>   arch/sparc/include/asm/adi_64.h                                  |    3 +--
>   arch/sparc/kernel/adi_64.c                                       |    3 +--
>   arch/sparc/kernel/sun4v_mcd.S                                    |    3 +--
>   drivers/acpi/ec_sys.c                                            |    3 +--
>   drivers/vhost/net.c                                              |    3 +--
>   drivers/vhost/test.c                                             |    3 +--
>   drivers/vhost/vhost.c                                            |    3 +--
>   drivers/vhost/vsock.c                                            |    3 +--
>   mm/cleancache.c                                                  |    3 +--
>   mm/frontswap.c                                                   |    3 +--
>   mm/ksm.c                                                         |    3 +--
>   net/vmw_vsock/virtio_transport.c                                 |    3 +--
>   net/vmw_vsock/virtio_transport_common.c                          |    3 +--
>   tools/power/acpi/tools/ec/ec_access.c                            |    3 +--
>   tools/testing/selftests/kvm/include/kvm_util.h                   |    4 +---
>   tools/testing/selftests/kvm/include/sparsebit.h                  |    4 +---
>   tools/testing/selftests/kvm/include/test_util.h                  |    4 +---
>   tools/testing/selftests/kvm/include/x86_64/processor.h           |    4 +---
>   tools/testing/selftests/kvm/include/x86_64/vmx.h                 |    4 +---
>   tools/testing/selftests/kvm/lib/assert.c                         |    3 +--
>   tools/testing/selftests/kvm/lib/elf.c                            |    3 +--
>   tools/testing/selftests/kvm/lib/io.c                             |    3 +--
>   tools/testing/selftests/kvm/lib/kvm_util.c                       |    3 +--
>   tools/testing/selftests/kvm/lib/kvm_util_internal.h              |    3 +--
>   tools/testing/selftests/kvm/lib/sparsebit.c                      |    3 +--
>   tools/testing/selftests/kvm/lib/x86_64/processor.c               |    3 +--
>   tools/testing/selftests/kvm/lib/x86_64/vmx.c                     |    3 +--
>   tools/testing/selftests/kvm/x86_64/kvm_create_max_vcpus.c        |    3 +--
>   tools/testing/selftests/kvm/x86_64/set_sregs_test.c              |    4 +---
>   tools/testing/selftests/kvm/x86_64/state_test.c                  |    3 +--
>   tools/testing/selftests/kvm/x86_64/sync_regs_test.c              |    3 +--
>   tools/testing/selftests/kvm/x86_64/vmx_close_while_nested_test.c |    3 +--
>   tools/testing/selftests/kvm/x86_64/vmx_set_nested_state_test.c   |    3 +--
>   tools/testing/selftests/kvm/x86_64/vmx_tsc_adjust_test.c         |    4 +---
>   tools/virtio/ringtest/main.c                                     |    2 +-
>   tools/virtio/ringtest/main.h                                     |    2 +-
>   tools/virtio/ringtest/ring.c                                     |    2 +-
>   tools/virtio/ringtest/virtio_ring_0_9.c                          |    2 +-
>   38 files changed, 38 insertions(+), 79 deletions(-)
> 
> --- a/arch/sparc/include/asm/adi_64.h
> +++ b/arch/sparc/include/asm/adi_64.h
> @@ -1,9 +1,8 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
>   /* adi_64.h: ADI related data structures
>    *
>    * Copyright (c) 2016 Oracle and/or its affiliates. All rights reserved.
>    * Author: Khalid Aziz (khalid.aziz@oracle.com)
> - *
> - * This work is licensed under the terms of the GNU GPL, version 2.
>    */
>   #ifndef __ASM_SPARC64_ADI_H
>   #define __ASM_SPARC64_ADI_H
> --- a/arch/sparc/kernel/adi_64.c
> +++ b/arch/sparc/kernel/adi_64.c
> @@ -1,11 +1,10 @@
> +// SPDX-License-Identifier: GPL-2.0-only
>   /* adi_64.c: support for ADI (Application Data Integrity) feature on
>    * sparc m7 and newer processors. This feature is also known as
>    * SSM (Silicon Secured Memory).
>    *
>    * Copyright (C) 2016 Oracle and/or its affiliates. All rights reserved.
>    * Author: Khalid Aziz (khalid.aziz@oracle.com)
> - *
> - * This work is licensed under the terms of the GNU GPL, version 2.
>    */
>   #include <linux/init.h>
>   #include <linux/slab.h>
> --- a/arch/sparc/kernel/sun4v_mcd.S
> +++ b/arch/sparc/kernel/sun4v_mcd.S
> @@ -1,10 +1,9 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
>   /* sun4v_mcd.S: Sun4v memory corruption detected precise exception handler
>    *
>    * Copyright (c) 2015 Oracle and/or its affiliates. All rights reserved.
>    * Authors: Bob Picco <bob.picco@oracle.com>,
>    *          Khalid Aziz <khalid.aziz@oracle.com>
> - *
> - * This work is licensed under the terms of the GNU GPL, version 2.
>    */
>   	.text
>   	.align 32
> --- a/drivers/acpi/ec_sys.c
> +++ b/drivers/acpi/ec_sys.c
> @@ -1,11 +1,10 @@
> +// SPDX-License-Identifier: GPL-2.0-only
>   /*
>    * ec_sys.c
>    *
>    * Copyright (C) 2010 SUSE Products GmbH/Novell
>    * Author:
>    *      Thomas Renninger <trenn@suse.de>
> - *
> - * This work is licensed under the terms of the GNU GPL, version 2.
>    */
>   
>   #include <linux/kernel.h>
> --- a/drivers/vhost/net.c
> +++ b/drivers/vhost/net.c
> @@ -1,8 +1,7 @@
> +// SPDX-License-Identifier: GPL-2.0-only
>   /* Copyright (C) 2009 Red Hat, Inc.
>    * Author: Michael S. Tsirkin <mst@redhat.com>
>    *
> - * This work is licensed under the terms of the GNU GPL, version 2.
> - *
>    * virtio-net server in host kernel.
>    */
>   
> --- a/drivers/vhost/test.c
> +++ b/drivers/vhost/test.c
> @@ -1,8 +1,7 @@
> +// SPDX-License-Identifier: GPL-2.0-only
>   /* Copyright (C) 2009 Red Hat, Inc.
>    * Author: Michael S. Tsirkin <mst@redhat.com>
>    *
> - * This work is licensed under the terms of the GNU GPL, version 2.
> - *
>    * test virtio server in host kernel.
>    */
>   
> --- a/drivers/vhost/vhost.c
> +++ b/drivers/vhost/vhost.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-only
>   /* Copyright (C) 2009 Red Hat, Inc.
>    * Copyright (C) 2006 Rusty Russell IBM Corporation
>    *
> @@ -6,8 +7,6 @@
>    * Inspiration, some code, and most witty comments come from
>    * Documentation/virtual/lguest/lguest.c, by Rusty Russell
>    *
> - * This work is licensed under the terms of the GNU GPL, version 2.
> - *
>    * Generic code for virtio server in host kernel.
>    */
>   
> --- a/drivers/vhost/vsock.c
> +++ b/drivers/vhost/vsock.c
> @@ -1,11 +1,10 @@
> +// SPDX-License-Identifier: GPL-2.0-only
>   /*
>    * vhost transport for vsock
>    *
>    * Copyright (C) 2013-2015 Red Hat, Inc.
>    * Author: Asias He <asias@redhat.com>
>    *         Stefan Hajnoczi <stefanha@redhat.com>
> - *
> - * This work is licensed under the terms of the GNU GPL, version 2.
>    */
>   #include <linux/miscdevice.h>
>   #include <linux/atomic.h>
> --- a/mm/cleancache.c
> +++ b/mm/cleancache.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-only
>   /*
>    * Cleancache frontend
>    *
> @@ -7,8 +8,6 @@
>    *
>    * Copyright (C) 2009-2010 Oracle Corp. All rights reserved.
>    * Author: Dan Magenheimer
> - *
> - * This work is licensed under the terms of the GNU GPL, version 2.
>    */
>   
>   #include <linux/module.h>
> --- a/mm/frontswap.c
> +++ b/mm/frontswap.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-only
>   /*
>    * Frontswap frontend
>    *
> @@ -7,8 +8,6 @@
>    *
>    * Copyright (C) 2009-2012 Oracle Corp.  All rights reserved.
>    * Author: Dan Magenheimer
> - *
> - * This work is licensed under the terms of the GNU GPL, version 2.
>    */
>   
>   #include <linux/mman.h>
> --- a/mm/ksm.c
> +++ b/mm/ksm.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-only
>   /*
>    * Memory merging support.
>    *
> @@ -10,8 +11,6 @@
>    *	Andrea Arcangeli
>    *	Chris Wright
>    *	Hugh Dickins
> - *
> - * This work is licensed under the terms of the GNU GPL, version 2.
>    */
>   
>   #include <linux/errno.h>
> --- a/net/vmw_vsock/virtio_transport.c
> +++ b/net/vmw_vsock/virtio_transport.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-only
>   /*
>    * virtio transport for vsock
>    *
> @@ -7,8 +8,6 @@
>    *
>    * Some of the code is take from Gerd Hoffmann <kraxel@redhat.com>'s
>    * early virtio-vsock proof-of-concept bits.
> - *
> - * This work is licensed under the terms of the GNU GPL, version 2.
>    */
>   #include <linux/spinlock.h>
>   #include <linux/module.h>
> --- a/net/vmw_vsock/virtio_transport_common.c
> +++ b/net/vmw_vsock/virtio_transport_common.c
> @@ -1,11 +1,10 @@
> +// SPDX-License-Identifier: GPL-2.0-only
>   /*
>    * common code for virtio vsock
>    *
>    * Copyright (C) 2013-2015 Red Hat, Inc.
>    * Author: Asias He <asias@redhat.com>
>    *         Stefan Hajnoczi <stefanha@redhat.com>
> - *
> - * This work is licensed under the terms of the GNU GPL, version 2.
>    */
>   #include <linux/spinlock.h>
>   #include <linux/module.h>
> --- a/tools/power/acpi/tools/ec/ec_access.c
> +++ b/tools/power/acpi/tools/ec/ec_access.c
> @@ -1,11 +1,10 @@
> +// SPDX-License-Identifier: GPL-2.0-only
>   /*
>    * ec_access.c
>    *
>    * Copyright (C) 2010 SUSE Linux Products GmbH
>    * Author:
>    *      Thomas Renninger <trenn@suse.de>
> - *
> - * This work is licensed under the terms of the GNU GPL, version 2.
>    */
>   
>   #include <fcntl.h>
> --- a/tools/testing/selftests/kvm/include/kvm_util.h
> +++ b/tools/testing/selftests/kvm/include/kvm_util.h
> @@ -1,10 +1,8 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
>   /*
>    * tools/testing/selftests/kvm/include/kvm_util.h
>    *
>    * Copyright (C) 2018, Google LLC.
> - *
> - * This work is licensed under the terms of the GNU GPL, version 2.
> - *
>    */
>   #ifndef SELFTEST_KVM_UTIL_H
>   #define SELFTEST_KVM_UTIL_H
> --- a/tools/testing/selftests/kvm/include/sparsebit.h
> +++ b/tools/testing/selftests/kvm/include/sparsebit.h
> @@ -1,11 +1,9 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
>   /*
>    * tools/testing/selftests/kvm/include/sparsebit.h
>    *
>    * Copyright (C) 2018, Google LLC.
>    *
> - * This work is licensed under the terms of the GNU GPL, version 2.
> - *
> - *
>    * Header file that describes API to the sparsebit library.
>    * This library provides a memory efficient means of storing
>    * the settings of bits indexed via a uint64_t.  Memory usage
> --- a/tools/testing/selftests/kvm/include/test_util.h
> +++ b/tools/testing/selftests/kvm/include/test_util.h
> @@ -1,10 +1,8 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
>   /*
>    * tools/testing/selftests/kvm/include/test_util.h
>    *
>    * Copyright (C) 2018, Google LLC.
> - *
> - * This work is licensed under the terms of the GNU GPL, version 2.
> - *
>    */
>   
>   #ifndef SELFTEST_KVM_TEST_UTIL_H
> --- a/tools/testing/selftests/kvm/include/x86_64/processor.h
> +++ b/tools/testing/selftests/kvm/include/x86_64/processor.h
> @@ -1,10 +1,8 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
>   /*
>    * tools/testing/selftests/kvm/include/x86_64/processor.h
>    *
>    * Copyright (C) 2018, Google LLC.
> - *
> - * This work is licensed under the terms of the GNU GPL, version 2.
> - *
>    */
>   
>   #ifndef SELFTEST_KVM_PROCESSOR_H
> --- a/tools/testing/selftests/kvm/include/x86_64/vmx.h
> +++ b/tools/testing/selftests/kvm/include/x86_64/vmx.h
> @@ -1,10 +1,8 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
>   /*
>    * tools/testing/selftests/kvm/include/x86_64/vmx.h
>    *
>    * Copyright (C) 2018, Google LLC.
> - *
> - * This work is licensed under the terms of the GNU GPL, version 2.
> - *
>    */
>   
>   #ifndef SELFTEST_KVM_VMX_H
> --- a/tools/testing/selftests/kvm/lib/assert.c
> +++ b/tools/testing/selftests/kvm/lib/assert.c
> @@ -1,9 +1,8 @@
> +// SPDX-License-Identifier: GPL-2.0-only
>   /*
>    * tools/testing/selftests/kvm/lib/assert.c
>    *
>    * Copyright (C) 2018, Google LLC.
> - *
> - * This work is licensed under the terms of the GNU GPL, version 2.
>    */
>   
>   #define _GNU_SOURCE /* for getline(3) and strchrnul(3)*/
> --- a/tools/testing/selftests/kvm/lib/elf.c
> +++ b/tools/testing/selftests/kvm/lib/elf.c
> @@ -1,9 +1,8 @@
> +// SPDX-License-Identifier: GPL-2.0-only
>   /*
>    * tools/testing/selftests/kvm/lib/elf.c
>    *
>    * Copyright (C) 2018, Google LLC.
> - *
> - * This work is licensed under the terms of the GNU GPL, version 2.
>    */
>   
>   #include "test_util.h"
> --- a/tools/testing/selftests/kvm/lib/io.c
> +++ b/tools/testing/selftests/kvm/lib/io.c
> @@ -1,9 +1,8 @@
> +// SPDX-License-Identifier: GPL-2.0-only
>   /*
>    * tools/testing/selftests/kvm/lib/io.c
>    *
>    * Copyright (C) 2018, Google LLC.
> - *
> - * This work is licensed under the terms of the GNU GPL, version 2.
>    */
>   
>   #include "test_util.h"
> --- a/tools/testing/selftests/kvm/lib/kvm_util.c
> +++ b/tools/testing/selftests/kvm/lib/kvm_util.c
> @@ -1,9 +1,8 @@
> +// SPDX-License-Identifier: GPL-2.0-only
>   /*
>    * tools/testing/selftests/kvm/lib/kvm_util.c
>    *
>    * Copyright (C) 2018, Google LLC.
> - *
> - * This work is licensed under the terms of the GNU GPL, version 2.
>    */
>   
>   #include "test_util.h"
> --- a/tools/testing/selftests/kvm/lib/kvm_util_internal.h
> +++ b/tools/testing/selftests/kvm/lib/kvm_util_internal.h
> @@ -1,9 +1,8 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
>   /*
>    * tools/testing/selftests/kvm/lib/kvm_util_internal.h
>    *
>    * Copyright (C) 2018, Google LLC.
> - *
> - * This work is licensed under the terms of the GNU GPL, version 2.
>    */
>   
>   #ifndef SELFTEST_KVM_UTIL_INTERNAL_H
> --- a/tools/testing/selftests/kvm/lib/sparsebit.c
> +++ b/tools/testing/selftests/kvm/lib/sparsebit.c
> @@ -1,11 +1,10 @@
> +// SPDX-License-Identifier: GPL-2.0-only
>   /*
>    * Sparse bit array
>    *
>    * Copyright (C) 2018, Google LLC.
>    * Copyright (C) 2018, Red Hat, Inc. (code style cleanup and fuzzing driver)
>    *
> - * This work is licensed under the terms of the GNU GPL, version 2.
> - *
>    * This library provides functions to support a memory efficient bit array,
>    * with an index size of 2^64.  A sparsebit array is allocated through
>    * the use sparsebit_alloc() and free'd via sparsebit_free(),
> --- a/tools/testing/selftests/kvm/lib/x86_64/processor.c
> +++ b/tools/testing/selftests/kvm/lib/x86_64/processor.c
> @@ -1,9 +1,8 @@
> +// SPDX-License-Identifier: GPL-2.0-only
>   /*
>    * tools/testing/selftests/kvm/lib/x86_64/processor.c
>    *
>    * Copyright (C) 2018, Google LLC.
> - *
> - * This work is licensed under the terms of the GNU GPL, version 2.
>    */
>   
>   #define _GNU_SOURCE /* for program_invocation_name */
> --- a/tools/testing/selftests/kvm/lib/x86_64/vmx.c
> +++ b/tools/testing/selftests/kvm/lib/x86_64/vmx.c
> @@ -1,9 +1,8 @@
> +// SPDX-License-Identifier: GPL-2.0-only
>   /*
>    * tools/testing/selftests/kvm/lib/x86_64/vmx.c
>    *
>    * Copyright (C) 2018, Google LLC.
> - *
> - * This work is licensed under the terms of the GNU GPL, version 2.
>    */
>   
>   #define _GNU_SOURCE /* for program_invocation_name */
> --- a/tools/testing/selftests/kvm/x86_64/kvm_create_max_vcpus.c
> +++ b/tools/testing/selftests/kvm/x86_64/kvm_create_max_vcpus.c
> @@ -1,10 +1,9 @@
> +// SPDX-License-Identifier: GPL-2.0-only
>   /*
>    * kvm_create_max_vcpus
>    *
>    * Copyright (C) 2019, Google LLC.
>    *
> - * This work is licensed under the terms of the GNU GPL, version 2.
> - *
>    * Test for KVM_CAP_MAX_VCPUS and KVM_CAP_MAX_VCPU_ID.
>    */
>   
> --- a/tools/testing/selftests/kvm/x86_64/set_sregs_test.c
> +++ b/tools/testing/selftests/kvm/x86_64/set_sregs_test.c
> @@ -1,16 +1,14 @@
> +// SPDX-License-Identifier: GPL-2.0-only
>   /*
>    * KVM_SET_SREGS tests
>    *
>    * Copyright (C) 2018, Google LLC.
>    *
> - * This work is licensed under the terms of the GNU GPL, version 2.
> - *
>    * This is a regression test for the bug fixed by the following commit:
>    * d3802286fa0f ("kvm: x86: Disallow illegal IA32_APIC_BASE MSR values")
>    *
>    * That bug allowed a user-mode program that called the KVM_SET_SREGS
>    * ioctl to put a VCPU's local APIC into an invalid state.
> - *
>    */
>   #define _GNU_SOURCE /* for program_invocation_short_name */
>   #include <fcntl.h>
> --- a/tools/testing/selftests/kvm/x86_64/state_test.c
> +++ b/tools/testing/selftests/kvm/x86_64/state_test.c
> @@ -1,10 +1,9 @@
> +// SPDX-License-Identifier: GPL-2.0-only
>   /*
>    * KVM_GET/SET_* tests
>    *
>    * Copyright (C) 2018, Red Hat, Inc.
>    *
> - * This work is licensed under the terms of the GNU GPL, version 2.
> - *
>    * Tests for vCPU state save/restore, including nested guest state.
>    */
>   #define _GNU_SOURCE /* for program_invocation_short_name */
> --- a/tools/testing/selftests/kvm/x86_64/sync_regs_test.c
> +++ b/tools/testing/selftests/kvm/x86_64/sync_regs_test.c
> @@ -1,10 +1,9 @@
> +// SPDX-License-Identifier: GPL-2.0-only
>   /*
>    * Test for x86 KVM_CAP_SYNC_REGS
>    *
>    * Copyright (C) 2018, Google LLC.
>    *
> - * This work is licensed under the terms of the GNU GPL, version 2.
> - *
>    * Verifies expected behavior of x86 KVM_CAP_SYNC_REGS functionality,
>    * including requesting an invalid register set, updates to/from values
>    * in kvm_run.s.regs when kvm_valid_regs and kvm_dirty_regs are toggled.
> --- a/tools/testing/selftests/kvm/x86_64/vmx_close_while_nested_test.c
> +++ b/tools/testing/selftests/kvm/x86_64/vmx_close_while_nested_test.c
> @@ -1,10 +1,9 @@
> +// SPDX-License-Identifier: GPL-2.0-only
>   /*
>    * vmx_close_while_nested
>    *
>    * Copyright (C) 2019, Red Hat, Inc.
>    *
> - * This work is licensed under the terms of the GNU GPL, version 2.
> - *
>    * Verify that nothing bad happens if a KVM user exits with open
>    * file descriptors while executing a nested guest.
>    */
> --- a/tools/testing/selftests/kvm/x86_64/vmx_set_nested_state_test.c
> +++ b/tools/testing/selftests/kvm/x86_64/vmx_set_nested_state_test.c
> @@ -1,10 +1,9 @@
> +// SPDX-License-Identifier: GPL-2.0-only
>   /*
>    * vmx_set_nested_state_test
>    *
>    * Copyright (C) 2019, Google LLC.
>    *
> - * This work is licensed under the terms of the GNU GPL, version 2.
> - *
>    * This test verifies the integrity of calling the ioctl KVM_SET_NESTED_STATE.
>    */
>   
> --- a/tools/testing/selftests/kvm/x86_64/vmx_tsc_adjust_test.c
> +++ b/tools/testing/selftests/kvm/x86_64/vmx_tsc_adjust_test.c
> @@ -1,11 +1,9 @@
> +// SPDX-License-Identifier: GPL-2.0-only
>   /*
>    * vmx_tsc_adjust_test
>    *
>    * Copyright (C) 2018, Google LLC.
>    *
> - * This work is licensed under the terms of the GNU GPL, version 2.
> - *
> - *
>    * IA32_TSC_ADJUST test
>    *
>    * According to the SDM, "if an execution of WRMSR to the
> --- a/tools/virtio/ringtest/main.c
> +++ b/tools/virtio/ringtest/main.c
> @@ -1,7 +1,7 @@
> +// SPDX-License-Identifier: GPL-2.0-only
>   /*
>    * Copyright (C) 2016 Red Hat, Inc.
>    * Author: Michael S. Tsirkin <mst@redhat.com>
> - * This work is licensed under the terms of the GNU GPL, version 2.
>    *
>    * Command line processing and common functions for ring benchmarking.
>    */
> --- a/tools/virtio/ringtest/main.h
> +++ b/tools/virtio/ringtest/main.h
> @@ -1,7 +1,7 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
>   /*
>    * Copyright (C) 2016 Red Hat, Inc.
>    * Author: Michael S. Tsirkin <mst@redhat.com>
> - * This work is licensed under the terms of the GNU GPL, version 2.
>    *
>    * Common macros and functions for ring benchmarking.
>    */
> --- a/tools/virtio/ringtest/ring.c
> +++ b/tools/virtio/ringtest/ring.c
> @@ -1,7 +1,7 @@
> +// SPDX-License-Identifier: GPL-2.0-only
>   /*
>    * Copyright (C) 2016 Red Hat, Inc.
>    * Author: Michael S. Tsirkin <mst@redhat.com>
> - * This work is licensed under the terms of the GNU GPL, version 2.
>    *
>    * Simple descriptor-based ring. virtio 0.9 compatible event index is used for
>    * signalling, unconditionally.
> --- a/tools/virtio/ringtest/virtio_ring_0_9.c
> +++ b/tools/virtio/ringtest/virtio_ring_0_9.c
> @@ -1,7 +1,7 @@
> +// SPDX-License-Identifier: GPL-2.0-only
>   /*
>    * Copyright (C) 2016 Red Hat, Inc.
>    * Author: Michael S. Tsirkin <mst@redhat.com>
> - * This work is licensed under the terms of the GNU GPL, version 2.
>    *
>    * Partial implementation of virtio 0.9. event index is used for signalling,
>    * unconditionally. Design roughly follows linux kernel implementation in order
> 
> 

Reviewed-By: Enrico Weigelt <info@metux.net>

-- 
Enrico Weigelt, metux IT consult
Free software and Linux embedded engineering
info@metux.net -- +49-151-27565287