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rtw_enqueue_cmd() uses a semaphore to notify rtw_cmd_thread() that it has enqueued commands. rtw_cmd_thread() "down(s)" in interruptible mode to wait to be notified. Use completion variables because they are better suited for the purpose. In rtw_cmd_thread(), wait in uninterruptible mode, even if the original code uses down_interruptible(), because the interruption of rtw_cmd_thread() is not allowed and unwanted. Tested with "ASUSTek Computer, Inc. Realtek 8188EUS [USB-N10 Nano]". Acked-by: Phillip Potter <phil@philpotter.co.uk> Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com> Link: https://lore.kernel.org/r/20211018162006.5527-3-fmdefrancesco@gmail.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.