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Kees Cook 808aac63e2 uaccess: Introduce ucopysize.h
The object size sanity checking macros that uaccess.h and uio.h use
have been living in thread_info.h for historical reasons. Needing to
use jump labels for these checks, however, introduces a header include
loop under certain conditions. The dependencies for the object checking
macros are very limited, but they are used by separate header files,
so introduce a new header that can be used directly by uaccess.h and
uio.h. As a result, this also means thread_info.h (which is rather large)
and be removed from those headers.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202502281153.TG2XK5SI-lkp@intel.com/
Signed-off-by: Kees Cook <kees@kernel.org>
History 2025-02-28 11:51:26 -08:00
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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 reStructuredText 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.