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[ Upstream commit 3a675f50415b95f2ae10bfd932e2154ba1a08ee7 ] The existing error handling logic in pcc_mbox_irq() is intermixed with the main flow of the function. The command complete check and the complete complete update/acknowledgment are nicely factored into separate functions. Moves error detection and clearing logic into a separate function called: pcc_mbox_error_check_and_clear() by extracting error-handling logic from pcc_mbox_irq(). This ensures error checking and clearing are handled separately and it improves maintainability by keeping the IRQ handler focused on processing events. Acked-by: Huisong Li <lihuisong@huawei.com> Tested-by: Huisong Li <lihuisong@huawei.com> Tested-by: Adam Young <admiyo@os.amperecomputing.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com> Stable-dep-of: ff0e4d4c97c9 ("mailbox: pcc: don't zero error register") 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.