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ea258f159d
INT_LIMIT() tries to do what type_max() does, except that type_max() doesn't rely upon undefined behaviour[*], might as well use type_max() instead. [*] if T is an N-bit signed integer type, the maximal value in T is pow(2, N - 1) - 1, all right, but naive expression for that value ends up with a couple of wraparounds and as usual for wraparounds in signed types, that's an undefined behaviour. type_max() takes care to avoid those... Caught-by: UBSAN Suggested-by: Eric Biggers <ebiggers@kernel.org> Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> Reviewed-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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| README | ||
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.