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We have a pair of FW functions, rtw89_fw_h2c_add_pkt_offload() and rtw89_fw_h2c_del_pkt_offload(). The rtw89_fw_h2c_add_pkt_offload() acquires the bit itself, but the bit needs to be released by the caller of rtw89_fw_h2c_del_pkt_offload(). This looks asymmetrical and is not friendly to callers. Second, if callers always releases the bits, it might make driver unaligned to bitmap status of FW after some failures of calling rtw89_fw_h2c_del_pkt_offload(). So, this commit move bit release into rtw89_fw_h2c_del_pkt_offload(). In general, driver will call rtw89_fw_h2c_add_pkt_offload() and rtw89_fw_h2c_del_pkt_offload(), and then, SW bitmap can align with FW one. There is one exception when notify_fw is false. It happens when driver detects FW problems and is going to reset FW. Only in this case, driver needs to release bits outside rtw89_fw_h2c_del_pkt_offload(). 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/8cf5d45c5b04e7b680d4eb9dda62056cdce14cec.camel@realtek.com |
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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.