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b79a84fbbd
Some specific H2C (host to chip command) needs waiting until FW ACK by C2H (chip to host event). However, during SER (system error recovery), most interrupts are disabled, so we can't receive C2H immediately. It causes this kind of H2C TX waits will always time out during SER. To save time spent by SER, we don't do these redundant waits. And, to make a difference from -ETIMEDOUT in other cases, we make the function return 1 for SER case. When some H2C callers really catch `ret == 1` at runtime, they can determine whether it's reasonable or not, and consider how to resolve their flow if needed. 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/20230516082441.11154-3-pkshih@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.