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In GENMASK_INPUT_CHECK(), __builtin_choose_expr(__is_constexpr((l) > (h)), (l) > (h), 0) is the exact expansion of: const_true((l) > (h)) Apply const_true() to simplify GENMASK_INPUT_CHECK(). CC: Linus Torvalds <torvalds@linux-foundation.org> CC: Rasmus Villemoes <linux@rasmusvillemoes.dk> CC: Luc Van Oostenryck <luc.vanoostenryck@gmail.com> Reviewed-by: Yury Norov <yury.norov@gmail.com>, Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Signed-off-by: Yury Norov <yury.norov@gmail.com>
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 reStructuredText 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.