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Jiri Slaby
754bda9807
Move the control characters detection to a separate function dubbed vc_is_control. It makes the 14 subexpressions a "bit" more readable. And also simplifies next patches. It moves also CTRL_ACTION and CTRL_ALWAYS to this new function, as they are used exclusively here. While at it, these are converted to static const variables. And we use "& BIT()" instead of ">>" and "& 1". Checked using symbolic execution (klee), that the old and new behaviors are the same. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20200615074910.19267-18-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.
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.