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The maximum number of simultaneously pending messages is a transport specific quantity that is usually described statically in struct scmi_desc. Some transports, though, can calculate such number only at run-time after some initial transport specific setup and probing is completed; moreover the resulting max message numbers could also be different between rx and tx channels. Add an optional get_max_msg() operation so that a transport can report more accurate max message numbers for each channel type. The value in scmi_desc.max_msg is still used as default when transport does not provide any get_max_msg() method. Link: https://lore.kernel.org/r/20210803131024.40280-11-cristian.marussi@arm.com Co-developed-by: Peter Hilber <peter.hilber@opensynergy.com> Co-developed-by: Cristian Marussi <cristian.marussi@arm.com> Signed-off-by: Igor Skalkin <igor.skalkin@opensynergy.com> [ Peter: Adapted patch for submission to upstream. ] Signed-off-by: Peter Hilber <peter.hilber@opensynergy.com> [ Cristian: refactored how get_max_msg() is used to minimize core changes ] Signed-off-by: Cristian Marussi <cristian.marussi@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.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.