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Message-ID: <dac95ea92cf3334318cf95d133553c8b7d1110b5.camel@perches.com>
Subject: Re: [PATCH V2] license-rules.rst and LICENSES: Use only spdx
 version 3 with -only and -or-later
From:   Joe Perches <joe@perches.com>
To:     Matthew Wilcox <willy@infradead.org>
Cc:     Thomas Gleixner <tglx@linutronix.de>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Kate Stewart <kstewart@linuxfoundation.org>,
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        Christoph Hellwig <hch@lst.de>,
        Russell King <rmk+kernel@armlinux.org.uk>,
        Rob Herring <rob.herring@linaro.org>,
        Jonas Oberg <jonas@fsfe.org>,
        Andrew Morton <akpm@linuxfoundation.org>,
        Jonathan Corbet <corbet@lwn.net>,
        "open list:DOCUMENTATION" <linux-doc@vger.kernel.org>
Date:   Wed, 22 Aug 2018 13:22:54 -0700
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On Wed, 2018-08-22 at 13:12 -0700, Matthew Wilcox wrote:
> On Wed, Aug 22, 2018 at 12:47:57PM -0700, Joe Perches wrote:
> > Perhaps it's better to stick to a single SPDX version style for
> > all kernel files.
> > 
> > Right now, there are already several -only and -or-later uses.
> > 
> > $ git grep -P 'SPDX-License-Identifier.*(?:-or-later|-only)'| wc -l
> > 144
> > 
> > So perhaps a patch and a tool to do the reverse conversion:
> 
> No.  Any tool which does anything useful just has to understand both
> 2.0 and 3.0 naming.  They're aliases for each other, that's all.

But that same tool would have to be updated if ever
yet-another spdx version appears.

So it'd probably be better to support just 1 version.