linux-kernel - Re: [Question] What is the license of scripts/basic/fixdep.c ?

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Message-ID: <CAK7LNARBzc+vM4v2ESF5LkDoAi4MzB6WVmMnVGnjKdM2PTqDMg@mail.gmail.com>
Date:   Fri, 18 Jan 2019 19:41:39 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Philippe Ombredanne <pombredanne@...b.com>,
        Kai Germaschewski <kai.germaschewski@....de>,
        Kate Stewart <kstewart@...uxfoundation.org>,
        Jiri Olsa <jolsa@...nel.org>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>
Subject: Re: [Question] What is the license of scripts/basic/fixdep.c ?

On Fri, Jan 18, 2019 at 5:58 PM Masahiro Yamada
<yamada.masahiro@...ionext.com> wrote:
>
> Hi.
>
>
> The comment block of scripts/basic/fixdep.c says as follows:
>
>
>  * Author       Kai Germaschewski
>  * Copyright    2002 by Kai Germaschewski  <kai.germaschewski@....de>
>  *
>  * This software may be used and distributed according to the terms
>  * of the GNU General Public License, incorporated herein by reference.
>
>
>
> It does not explicitly mention the version of GPL.
>
> In this case, I think the corresponding SPDX tag
> is GPL-1.0+ instead of GPL-2.0
>
> Is this correct?
>
>
>
> There could be another problem regarding of this.
>
>
>
> Commit 9f7ef9854e80 copied scripts/basic/fixdep.c
> to tools/build/fixdep.c, but it ripped off its license term.
>
> Later, it was tagged as GPL-2.0 by b24413180
>
> See 'git show  b24413180 -- tools/build/fixdep.c'
>
>
> Maybe tools/build/fixdep.c should be corrected to GPL-1.0+ ?


I am not an expert of software license, but
a little more thought about this
if scripts/basic/fixdep.c is GPL-1.0+,



Probably, either of the following is correct.


Must tools/build/fixdep.c inherit GPL-1.0+
from script/basic/fixdep.c ?

 or

Can you choose the license (any in GPL-1.0, GPL-2.0, GPL-3.0,
GPL-1.0+, GPL-2.0+)
for tools/build/fixdep.c at your opinion?
(In this case, Jiri Olsa, the author of commit 9f7ef9854e800)



If the latter is correct, we do not need to fix tools/build/fixdep.c


-- 
Best Regards
Masahiro Yamada