Re: [kvm-unit-tests PATCH 2/2] s390x: lib: Move to GPL 2 and SPDX license identifiers

[Janosch Frank <frankja@linux.ibm.com>]

On 12/10/20 5:15 PM, David Hildenbrand wrote:
> On 09.12.20 10:46, Janosch Frank wrote:
>> On 12/9/20 10:15 AM, David Hildenbrand wrote:
>>> On 08.12.20 16:09, Janosch Frank wrote:
>>>> In the past we had some issues when developers wanted to use code
>>>> snippets or constants from the kernel in a test or in the library. To
>>>> remedy that the s390x maintainers decided to move all files to GPL 2
>>>> (if possible).
>>>>
>>>> At the same time let's move to SPDX identifiers as they are much nicer
>>>> to read.
>>>>
>>>> Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
>>>> ---
>>>>  lib/s390x/asm-offsets.c     | 4 +---
>>>>  lib/s390x/asm/arch_def.h    | 4 +---
>>>>  lib/s390x/asm/asm-offsets.h | 4 +---
>>>>  lib/s390x/asm/barrier.h     | 4 +---
>>>>  lib/s390x/asm/cpacf.h       | 1 +
>>>>  lib/s390x/asm/facility.h    | 4 +---
>>>>  lib/s390x/asm/float.h       | 4 +---
>>>>  lib/s390x/asm/interrupt.h   | 4 +---
>>>>  lib/s390x/asm/io.h          | 4 +---
>>>>  lib/s390x/asm/mem.h         | 4 +---
>>>>  lib/s390x/asm/page.h        | 4 +---
>>>>  lib/s390x/asm/pgtable.h     | 4 +---
>>>>  lib/s390x/asm/sigp.h        | 4 +---
>>>>  lib/s390x/asm/spinlock.h    | 4 +---
>>>>  lib/s390x/asm/stack.h       | 4 +---
>>>>  lib/s390x/asm/time.h        | 4 +---
>>>>  lib/s390x/css.h             | 4 +---
>>>>  lib/s390x/css_dump.c        | 4 +---
>>>>  lib/s390x/css_lib.c         | 4 +---
>>>>  lib/s390x/interrupt.c       | 4 +---
>>>>  lib/s390x/io.c              | 4 +---
>>>>  lib/s390x/mmu.c             | 4 +---
>>>>  lib/s390x/mmu.h             | 4 +---
>>>>  lib/s390x/sclp-console.c    | 5 +----
>>>>  lib/s390x/sclp.c            | 4 +---
>>>>  lib/s390x/sclp.h            | 5 +----
>>>>  lib/s390x/smp.c             | 4 +---
>>>>  lib/s390x/smp.h             | 4 +---
>>>>  lib/s390x/stack.c           | 4 +---
>>>>  lib/s390x/vm.c              | 3 +--
>>>>  lib/s390x/vm.h              | 3 +--
>>>>  31 files changed, 31 insertions(+), 90 deletions(-)
>>>>
>>>> diff --git a/lib/s390x/asm-offsets.c b/lib/s390x/asm-offsets.c
>>>> index 61d2658..ee94ed3 100644
>>>> --- a/lib/s390x/asm-offsets.c
>>>> +++ b/lib/s390x/asm-offsets.c
>>>> @@ -1,11 +1,9 @@
>>>> +/* SPDX-License-Identifier: GPL-2.0-only */
>>>>  /*
>>>>   * Copyright (c) 2017 Red Hat Inc
>>>>   *
>>>>   * Authors:
>>>>   *  David Hildenbrand <david@redhat.com>
>>>> - *
>>>> - * This code is free software; you can redistribute it and/or modify it
>>>> - * under the terms of the GNU Library General Public License version 2.
>>>>   */
>>>>  #include <libcflat.h>
>>>>  #include <kbuild.h>
>>>> diff --git a/lib/s390x/asm/arch_def.h b/lib/s390x/asm/arch_def.h
>>>> index edc06ef..f3ab830 100644
>>>> --- a/lib/s390x/asm/arch_def.h
>>>> +++ b/lib/s390x/asm/arch_def.h
>>>> @@ -1,11 +1,9 @@
>>>> +/* SPDX-License-Identifier: GPL-2.0-only */
>>>>  /*
>>>>   * Copyright (c) 2017 Red Hat Inc
>>>>   *
>>>>   * Authors:
>>>>   *  David Hildenbrand <david@redhat.com>
>>>> - *
>>>> - * This code is free software; you can redistribute it and/or modify it
>>>> - * under the terms of the GNU Library General Public License version 2.
>>>>   */
>>>>  #ifndef _ASM_S390X_ARCH_DEF_H_
>>>>  #define _ASM_S390X_ARCH_DEF_H_
>>>> diff --git a/lib/s390x/asm/asm-offsets.h b/lib/s390x/asm/asm-offsets.h
>>>> index a6d7af8..bed7f8e 100644
>>>> --- a/lib/s390x/asm/asm-offsets.h
>>>> +++ b/lib/s390x/asm/asm-offsets.h
>>>> @@ -1,10 +1,8 @@
>>>> +/* SPDX-License-Identifier: GPL-2.0-only */
>>>>  /*
>>>>   * Copyright (c) 2017 Red Hat Inc
>>>>   *
>>>>   * Authors:
>>>>   *  David Hildenbrand <david@redhat.com>
>>>> - *
>>>> - * This code is free software; you can redistribute it and/or modify it
>>>> - * under the terms of the GNU Library General Public License version 2.
>>>>   */
>>>>  #include <generated/asm-offsets.h>
>>>> diff --git a/lib/s390x/asm/barrier.h b/lib/s390x/asm/barrier.h
>>>> index d862e78..8e2fd6d 100644
>>>> --- a/lib/s390x/asm/barrier.h
>>>> +++ b/lib/s390x/asm/barrier.h
>>>> @@ -1,12 +1,10 @@
>>>> +/* SPDX-License-Identifier: GPL-2.0-only */
>>>>  /*
>>>>   * Copyright (c) 2017 Red Hat Inc
>>>>   *
>>>>   * Authors:
>>>>   *  Thomas Huth <thuth@redhat.com>
>>>>   *  David Hildenbrand <david@redhat.com>
>>>> - *
>>>> - * This code is free software; you can redistribute it and/or modify it
>>>> - * under the terms of the GNU Library General Public License version 2.
>>>>   */
>>>>  #ifndef _ASM_S390X_BARRIER_H_
>>>>  #define _ASM_S390X_BARRIER_H_
>>>> diff --git a/lib/s390x/asm/cpacf.h b/lib/s390x/asm/cpacf.h
>>>> index 2146a01..805fcf1 100644
>>>> --- a/lib/s390x/asm/cpacf.h
>>>> +++ b/lib/s390x/asm/cpacf.h
>>>> @@ -1,3 +1,4 @@
>>>> +/* SPDX-License-Identifier: GPL-2.0-only */
>>>>  /*
>>>>   * CP Assist for Cryptographic Functions (CPACF)
>>>>   *
>>>
>>> This file was originally copied from Linux v4.13. So I'm wondering if
>>> this should be
>>>
>>> SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
>>>
>>> instead. Doesn't make a real difference in practice I guess?
>>>
>> Linux's arch/s390/include/asm/cpacf.h has the GPL-2.0 identifier, so why
>> do you want the syscall note?
> 
> When we copied it in v4.13, there was no such identifier.
> 
> The tag was added in v4.14
> 
> commit b24413180f5600bcb3bb70fbed5cf186b60864bd
> Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Date:   Wed Nov 1 15:07:57 2017 +0100
> 
>     License cleanup: add SPDX GPL-2.0 license identifier to files with
> no license
> 
> 
> So naive me checked COPYING and COPYING.new in v4.13 and spotted
> 
> The Linux Kernel is provided under:
> 	SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
> 
> 
> But as the tag was added in v4.14, GPL-2.0-only seems to be the right
> thing to do I assume.

It's a bit sad that this is so complicated.
Thanks for looking

> 
> Acked-by: David Hildenbrand <david@redhat.com>
> 

Great, now we have all Acks together