licenses: add GPL-2.0-with-Linux-syscall-note

According to Linux copying notice[^1] the SPDX copyright should be
`GPL-2.0 WITH Linux-syscall-note`.
AFAIK there is no `WITH` operator in yocto yet, so I created
GPL-2.0-with-Linux-syscall-note based on SPDX[^2] and Linux[^3].
spdx.org/licenses does not list this license, because of the prefered use of
WITH operator.
For example GPL-2.0-with-autoconf-exception[^4] is now marked deprecated.

It would be good to have something like `LICENSE = "GPL2.0-only +
Linux-syscall-note"`
in the future.

[^1]:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/COPY
ING
[^2]: https://spdx.org/licenses/Linux-syscall-note.html
[^3]:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/LICE
NSES/exceptions/Linux-syscall-note
[^4]: https://spdx.org/licenses/GPL-2.0-with-autoconf-exception.html

Signed-off-by: Denis Osterland-Heim <denis.osterland@diehl.com>
---
 .../GPL-2.0-with-Linux-syscall-note               | 15 +++++++++++++++
 meta/recipes-kernel/linux/linux-yocto.inc         |  2 +-
 2 files changed, 16 insertions(+), 1 deletion(-)
 create mode 100644
meta/files/common-licenses/GPL-2.0-with-Linux-syscall-note

--
2.45.2

This is a patch for openembedded-core, and should go to the
openembedded-core@lists.openembedded.org.

Alex

On Fri, 22 Nov 2024 at 10:29, Denis OSTERLAND-HEIM via
lists.yoctoproject.org
<denis.osterland=diehl.com@lists.yoctoproject.org> wrote:
>
> According to Linux copying notice[^1] the SPDX copyright should be
> `GPL-2.0 WITH Linux-syscall-note`.
> AFAIK there is no `WITH` operator in yocto yet, so I created
> GPL-2.0-with-Linux-syscall-note based on SPDX[^2] and Linux[^3].
> spdx.org/licenses does not list this license, because of the prefered use of
> WITH operator.
> For example GPL-2.0-with-autoconf-exception[^4] is now marked deprecated.
>
> It would be good to have something like `LICENSE = "GPL2.0-only +
> Linux-syscall-note"`
> in the future.
>
> [^1]:
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/COPY
> ING
> [^2]: https://spdx.org/licenses/Linux-syscall-note.html
> [^3]:
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/LICE
> NSES/exceptions/Linux-syscall-note
> [^4]: https://spdx.org/licenses/GPL-2.0-with-autoconf-exception.html
>
> Signed-off-by: Denis Osterland-Heim <denis.osterland@diehl.com>
> ---
>  .../GPL-2.0-with-Linux-syscall-note               | 15 +++++++++++++++
>  meta/recipes-kernel/linux/linux-yocto.inc         |  2 +-
>  2 files changed, 16 insertions(+), 1 deletion(-)
>  create mode 100644
> meta/files/common-licenses/GPL-2.0-with-Linux-syscall-note
>
> diff --git a/meta/files/common-licenses/GPL-2.0-with-Linux-syscall-note
> b/meta/files/common-licenses/GPL-2.0-with-Linux-syscall-note
> new file mode 100644
> index 0000000000..7fc191baf1
> --- /dev/null
> +++ b/meta/files/common-licenses/GPL-2.0-with-Linux-syscall-note
> @@ -0,0 +1,15 @@
> +insert GPL v2 text here
> +
> +   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.
> +
> +                       Linus Torvalds
> +
> diff --git a/meta/recipes-kernel/linux/linux-yocto.inc
> b/meta/recipes-kernel/linux/linux-yocto.inc
> index 0132fcffb3..1765974666 100644
> --- a/meta/recipes-kernel/linux/linux-yocto.inc
> +++ b/meta/recipes-kernel/linux/linux-yocto.inc
> @@ -1,6 +1,6 @@
>  SUMMARY = "Linux kernel"
>  SECTION = "kernel"
> -LICENSE = "GPL-2.0-only"
> +LICENSE = "GPL-2.0-with-Linux-syscall-note"
>  HOMEPAGE = "https://www.yoctoproject.org/"
>
>  LIC_FILES_CHKSUM ?= "file://COPYING;md5=d7810fab7487fb0aad327b76f1be7cd7"
> --
> 2.45.2
>
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>

On Fri, 2024-11-22 at 10:28 +0100, Denis OSTERLAND-HEIM via lists.yoctoproject.org wrote:
> According to Linux copying notice[^1] the SPDX copyright should be
> `GPL-2.0 WITH Linux-syscall-note`.
> AFAIK there is no `WITH` operator in yocto yet, so I created
> GPL-2.0-with-Linux-syscall-note based on SPDX[^2] and Linux[^3].
> spdx.org/licenses does not list this license, because of the prefered use of
> WITH operator.
> For example GPL-2.0-with-autoconf-exception[^4] is now marked deprecated.
> 
> It would be good to have something like `LICENSE = "GPL2.0-only +
> Linux-syscall-note"`
> in the future.
> 
> [^1]:
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/COPY
> ING
> [^2]: https://spdx.org/licenses/Linux-syscall-note.html
> [^3]:
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/LICE
> NSES/exceptions/Linux-syscall-note
> [^4]: https://spdx.org/licenses/GPL-2.0-with-autoconf-exception.html
> 
> Signed-off-by: Denis Osterland-Heim <denis.osterland@diehl.com>
> ---
>  .../GPL-2.0-with-Linux-syscall-note               | 15 +++++++++++++++
>  meta/recipes-kernel/linux/linux-yocto.inc         |  2 +-
>  2 files changed, 16 insertions(+), 1 deletion(-)
>  create mode 100644
> meta/files/common-licenses/GPL-2.0-with-Linux-syscall-note

As Alex mentioned, this is the wrong list for this patch. There is also
a bigger issue in that your change removes the main GPLv2 license text
from the kernel license field. I'm not sure we can do that as is
becomes a fairly serious oversight.

I think we probably need to add dedicated WITH support to our license
code to resolve this.

Cheers,

Richard