The firmware of the 88W8897 PCIe+USB card sends those events very unreliably, sometimes bluetooth together with 2.4ghz-wifi is used and no COEX event comes in, and sometimes bluetooth is disabled but the coexistance mode doesn't get disabled. This means we sometimes end up capping the rx/tx window size while bluetooth is not enabled anymore, artifically limiting wifi speeds even though bluetooth is not being used. Since we can't fix the firmware, let's just ignore those events on the 88W8897 device. From some Wireshark capture sessions it seems that the Windows driver also doesn't change the rx/tx window sizes when bluetooth gets enabled or disabled, so this is fairly consistent with the Windows driver. Signed-off-by: Jonas Dreßler <verdre@v0yd.nl> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20211103205827.14559-1-verdre@v0yd.nl
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.
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