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3d64436453
"vdso" option setup already recognises integer and textual values. Yet kstrtobool is a more common way to parse boolean values, reuse it to unify option value parsing behavior and simplify code a bit. While at it, __setup value parsing callbacks are expected to return 1 when an option is recognized, and returning any other value won't trigger any error message currently, so simply return 1. Also don't change default vdso_enabled value of 1 when "vdso" option value is invalid. Reviewed-by: Philipp Rudo <prudo@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.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.