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987756f67d
Fix the handling of MEM_FRAG_TX/RX SMCs when the full memory descriptor does not fit in a single innovation of a memory sharing request. The current implementation expects a FFA_MEM_SHARE/FFA_MEM_LEND call to always receive a FFA_SUCCESS response, however in the case where a full descriptor does not fit inside the partitions TX buffer, the call can instead complete with a FFA_MEM_FRAG_RX SMC to request the next part of the descriptor to be transmitted. Similarly a FFA_MEM_FRAG_TX call currently only expects FFA_MEM_FRAG_RX as a response, however once the full descriptor has been transmitted the FFA_SUCCESS ABI will be used to indicate successful transmission. Update the existing code to match the expected behaviour. Link: https://lore.kernel.org/r/20220426121219.1801601-1-marc.bonnici@arm.com Signed-off-by: Marc Bonnici <marc.bonnici@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> |
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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.