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Guillaume Nault says:
====================
ipv4: Convert several tos fields to dscp_t
Continue the work started with commit a410a0cf98 ("ipv6: Define
dscp_t and stop taking ECN bits into account in fib6-rules") and
convert more structure fields and variables to dscp_t. This series
focuses on struct fib_rt_info, struct fib_entry_notifier_info and their
users (networking drivers).
The purpose of dscp_t is to ensure that ECN bits don't influence IP
route lookups. It does so by ensuring that dscp_t variables have the
ECN bits cleared.
Notes:
* This series is entirely about type annotation and isn't supposed
to have any user visible effect.
* The first two patches have to introduce a few dsfield <-> dscp
conversions in the affected drivers, but those are then removed when
converting the internal driver structures (patches 3-5). In the end,
drivers don't have to handle any conversion.
====================
Link: https://lore.kernel.org/r/cover.1649445279.git.gnault@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.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.