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The wfx driver checks carefully the coherency of of the DTIM notifications. We have noticed several times some small inconsistencies from the firmware on these notification. They have never been critical. However on the driver side they lead to big fat warnings. Worse, if these warning are displayed on UART console, they can be long to display (several hundreds of millisecs). Since, this warning is generated from a work queue, it can delay all the workqueue users. Especially, it can drastically slow down the frame management of the driver and then generate errors that are serious this time (eg. an overflow of the indication queue of the device). Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com> Link: https://lore.kernel.org/r/20210913130203.1903622-2-Jerome.Pouiller@silabs.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.