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Christoph Hellwig says: ==================== improve msg_control kernel vs user pointer handling this series replace the msg_control in the kernel msghdr structure with an anonymous union and separate fields for kernel vs user pointers. In addition to helping a bit with type safety and reducing sparse warnings, this also allows to remove the set_fs() in kernel_recvmsg, helping with an eventual entire removal of set_fs(). ==================== 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.