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59a27e1122
The current test in kernel_mapping_va_to_pa only applies when CONFIG_XIP_KERNEL is set, so use IS_ENABLED to optimize this macro at compile-time in standard kernels that do not require this test. Signed-off-by: Alexandre Ghiti <alex@ghiti.fr> Tested-by: Emil Renner Berthing <kernel@esmil.dk> Reviewed-by: Jisheng Zhang <jszhang@kernel.org> Reviewed-By: Vitaly Wool <vitaly.wool@konsulko.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.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 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.