0c3d6fd4b8
Przemek suggests that I shouldn't accuse GCC of witchcraft, there is a simpler explanation for why we need manual define. scripts/headers_install.sh modifies the guard, removing _UAPI. That's why including a kernel header from the tree and from /usr leads to duplicate definitions. This also solves the mystery of why I needed to include the header conditionally. I had the wrong guards for most cases but ethtool. Suggested-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Link: https://lore.kernel.org/r/20230621231719.2728928-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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.