[ Upstream commit cc26ed7be46c5f5fa45f3df8161ed7ca3c4d318c ] do_div() macro to perform u64 division and guards against overflow if the result is too large for the unsigned long return type. Signed-off-by: Dinh Nguyen <dinguyen@kernel.org> Link: https://lkml.kernel.org/r/20200114160726.19771-1-dinguyen@kernel.org Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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.
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