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Mat Martineau says: ==================== mptcp: Compatibility with common msg flags These patches from the MPTCP tree handle some of the msg flags that are typically used with TCP, to make it easier to adapt userspace programs for use with MPTCP. Patches 1, 2, and 4 add support for MSG_ERRQUEUE (no-op for now), MSG_TRUNC, and MSG_PEEK on the receive side. Patch 3 ignores unsupported msg flags for send and receive. Patch 5 adds a selftest for MSG_PEEK. ==================== 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.