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706afcea16
The 0day bot reports a lot of warnings (or errors due to CONFIG_WERROR) like this: cc1: error: arch/sh/include/mach-hp6xx: No such file or directory [-Werror=missing-include-dirs] Indeed, arch/sh/include/mach-hp6xx does not exist. While -Wmissing-include-dirs is only a W=1 warning, it may be annoying when CONFIG_BTRFS_FS is enabled because fs/btrfs/Makefile unconditionally adds this warning option. arch/sh/Makefile defines machdir-y for two purposes: - Build platform code in arch/sh/boards/mach-*/ - Add arch/sh/include/mach-*/ to the header search path For the latter, some platforms use arch/sh/include/mach-common/ instead of having its own arch/sh/include/mach-*/. Drop unneeded machdir-y to omit non-existing include directories. To build arch/sh/boards/mach-*/, use the standard obj-y syntax in arch/sh/boards/Makefile. Reported-by: kernel test robot <lkp@intel.com> Link: https://lore.kernel.org/oe-kbuild-all/202302190641.30VVXnPb-lkp@intel.com/ Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/20230219141555.2308306-1-masahiroy@kernel.org Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.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.