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Beniamino Galvani says: ==================== net: consolidate IPv4 route lookup for UDP tunnels At the moment different UDP tunnels rely on different functions for IPv4 route lookup, and those functions all implement the same logic. Only bareudp uses the generic ip_route_output_tunnel(), while geneve and vxlan basically duplicate it slightly differently. This series first extends the generic lookup function so that it is suitable for all UDP tunnel implementations. Then, bareudp, geneve and vxlan are adapted to use them. This results in code with less duplication and hopefully better maintainability. After this series is merged, IPv6 will be converted in a similar way. Changelog: v2 - fix compilation with IPv6 disabled ==================== 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.