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The H2Cs (host to chip packets) related to packet offload functions need to wait for FW responses in case FW state machine gets wrong and makes driver status no longer able to align FW one. In flow, driver may continuously send multiple H2Cs of packet offload series. If somehow FW doesn't deal with the former yet but the latter has gotten in, it might cause the problem mentioned above. So, we block these H2Cs by rtw89_wait_for_cond(). And then, when the corresponding C2Hs (chip to host packets) is received, we call rtw89_complete_cond(). Besides, RTW89_MAC_C2H_FUNC_PKT_OFLD_RSP's C2H handler should be executed in interrupt context to make our wait/complete process work as expected. Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/9ae8c1f105901c65e3171276a9fd6c99ae51803f.camel@realtek.com
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.