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[ Upstream commit 5dc0e0b1f0ea2b55031f84a365962b9b45869b98 ] Upon reception of malformed and unexpected timed-out SCMI messages, it is not possible to trace those bad messages in their entirety, because usually we cannot even retrieve the payload, or it is just not reliable. Add a helper to trace at least the content of the header of the received message while associating a meaningful tag and error code. Signed-off-by: Cristian Marussi <cristian.marussi@arm.com> Link: https://lore.kernel.org/r/20240325204620.1437237-3-cristian.marussi@arm.com Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Stable-dep-of: c23c03bf1faa ("firmware: arm_scmi: Fix timeout checks on polling path") Signed-off-by: Sasha Levin <sashal@kernel.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.