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When driver wakes up the firmware from the low power state, it is sending a memory ready message. The send is done via synchronous/blocking function to ensure that firmware is in ready state. However, in case of firmware undergoing reset send might be block forever. To address this issue a timeout is added to blocking write command on the internal bus. Introduce the __mei_cl_send_timeout function to use instead of __mei_cl_send in cases where timeout is required. The mei_cl_write has only two callers and there is no need to split it into two functions. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Link: https://lore.kernel.org/r/20221116124735.2493847-2-alexander.usyskin@intel.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.