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Date: Thu, 16 Nov 2017 14:00:47 -0700
From: Jonathan Corbet <corbet@lwn.net>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: LKML <linux-kernel@vger.kernel.org>,
        Linus Torvalds <torvalds@linuxfoundation.org>,
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        Rob Herring <rob.herring@linaro.org>, Jonas Oberg <jonas@fsfe.org>,
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        Charlemagne Lasse <charlemagnelasse@gmail.com>,
        Carmen Bianca Bakker <carmenbianca@fsfe.org>
Subject: Re: [patch V3 09/11] LICENSES: Add Linux syscall note exception
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On Thu, 16 Nov 2017 19:33:15 +0100
Thomas Gleixner <tglx@linutronix.de> wrote:

> Copied from the Linux kernel COPYING file.
> 
> Add the required tags for reference and tooling.
> 
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
> 
> ---
>  LICENSES/exceptions/Linux-syscall-note |   25 +++++++++++++++++++++++++
>  1 file changed, 25 insertions(+)
> 
> --- /dev/null
> +++ b/LICENSES/exceptions/Linux-syscall-note
> @@ -0,0 +1,25 @@
> +SPDX-Exception-Identifier: Linux-syscall-note
> +SPDX-URL: https://spdx.org/licenses/Linux-syscall-note.html
> +SPDX-Licenses: GPL-2.0, GPL-2.0+, GPL-1.0+, LGPL-2.0, LGPL-2.0+, LGPL-2.1, LGPL-2.1+
> +Usage-Guide:
> +  This exception is used together with one of the above SPDX-Licenses
> +  to mark user space API (uapi) header files so they can be included
> +  into non GPL compliant user space application code.
> +  To use this exception add it with the keyword WITH to one of the
> +  identifiers in the SPDX-Licenses tag:
> +    SPDX-License-Identifier: <SPDX-License> WITH Linux-syscall-note
> +License-Text:
> +
> +   NOTE! This copyright does *not* cover user programs that use kernel
> + services by normal system calls - this is merely considered normal use
> + of the kernel, and does *not* fall under the heading of "derived work".
> + Also note that the GPL below is copyrighted by the Free Software
> + Foundation, but the instance of code that it refers to (the Linux
> + kernel) is copyrighted by me and others who actually wrote it.
> +
> + Also note that the only valid version of the GPL as far as the kernel
> + is concerned is _this_ particular version of the license (ie v2, not
> + v2.2 or v3.x or whatever), unless explicitly otherwise stated.

This seems off-topic for the syscall exception..?  Getting the GPL
versions right is what this exercise is a whole is about (among other
things); I wouldn't expect people to look for it here.

jon