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038fcdaf04
do_div() does a 64-by-32 division. When the divisor is u64, do_div() truncates it to 32 bits, this means it can test non-zero and be truncated to zero for division. fix do_div.cocci warning: do_div() does a 64-by-32 division, please consider using div64_u64 instead. Signed-off-by: Wang Qing <wangqing@vivo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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.