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Date:   Fri, 4 Dec 2020 13:23:43 +0100
From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     Thorsten Leemhuis <linux@leemhuis.info>
Cc:     Jonathan Corbet <corbet@lwn.net>,
        Randy Dunlap <rdunlap@infradead.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
        Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH v4 1/3] LICENSES: Add the CC-BY-4.0 license
Message-ID: <X8oqTyRNKMHChbA7@kroah.com>
References: <cover.1607063223.git.linux@leemhuis.info>
 <7115b6c20ae3e6db0370fe4002dd586011205e1c.1607063223.git.linux@leemhuis.info>
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On Fri, Dec 04, 2020 at 07:43:48AM +0100, Thorsten Leemhuis wrote:
> Add the full text of the CC-BY-4.0 license to the kernel tree as well as
> the required tags for reference and tooling.
> 
> The license text was copied directly from the following url, but for
> clarification a 'Creative Commons' was added before 'Attribution 4.0
> International' in the first line:
> https://creativecommons.org/licenses/by/4.0/legalcode.txt
> 
> CC-BY-4.0 is GPLv2 compatible, but when for example used for the
> kernel's documentation it can easily happen that sphinx during
> processing combines it with text or code from files using a more
> restrictive license[1]. This bears pitfalls, hence point that risk out
> and suggest to only use this license in combination with the GPLv2.
> 
> [1] https://lkml.kernel.org/r/20201201144314.GA14256@lst.de
> 
> Signed-off-by: Thorsten Leemhuis <linux@leemhuis.info>
> CC: Thomas Gleixner <tglx@linutronix.de>
> CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> CC: Christoph Hellwig <hch@lst.de>
> ---
>  LICENSES/dual/CC-BY-4.0 | 410 ++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 410 insertions(+)
>  create mode 100644 LICENSES/dual/CC-BY-4.0

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>