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74bc0c09b2
This line was added by commitfd5f0cd6b0("kbuild: Do not overwrite makefile as anohter user"). Its commit description says the intention was to prevent $(objtree)/Makefile from being owned by root when e.g. running 'make install'. However, as commit19514fc665("arm, kbuild: make "make install" not depend on vmlinux") stated, installation targets must not modify the source tree in the first place. If they do, we are already screwed up. We must fix the root cause. Installation targets should just copy files verbatim, hence we never expect $(objtree)/Makefile is touched by root. The user ID check in scripts/mkmakefile is unneeded. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.