bc41a7f364
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> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> CC: Thomas Gleixner <tglx@linutronix.de> CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org> CC: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/7115b6c20ae3e6db0370fe4002dd586011205e1c.1607063223.git.linux@leemhuis.info Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.