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Edward Cree says: ==================== netlink: formatted extacks Currently, netlink extacks can only carry fixed string messages, which is limiting when reporting failures in complex systems. This series adds the ability to return printf-formatted messages, and uses it in the sfc driver's TC offload code. Formatted extack messages are limited in length to a fixed buffer size, currently 80 characters. If the message exceeds this, the full message will be logged (ratelimited) to the console and a truncated version returned over netlink. There is no change to the netlink uAPI; only internal kernel changes are needed. ==================== Link: https://lore.kernel.org/r/cover.1666102698.git.ecree.xilinx@gmail.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.