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4d5cff69fb
Add an IS_ENABLED() check in setup_arch() and call pat_disable() directly if MTRRs are not supported. This allows to remove the <asm/memtype.h> include in <asm/mtrr.h>, which pull in lowlevel x86 headers that should not be included for UML builds and will cause build warnings with a following patch. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lore.kernel.org/r/20211215165612.554426-2-hch@lst.de
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.