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    SubjectRE: [PATCH v2 03/10] RapidIO: Use stored ingress port number instead of register read
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    Andrew Morton <akpm@linux-foundation.org> wrote:
    >
    > The "variable length array at the end of the struct" thing is pretty
    > commonly used and works well. As long as we never want to change the
    > number of switches on the fly (hotplug?).

    This is expected to be a "strange" array - its size can be 0 or 1 only.
    No number of switches in that array should be changed on the fly.
    In the hotplug situation entire rio_dev structure should be added (or
    removed).
    RIO device can be endpoint or switch. If a RIO device is a switch - the
    rio_switch
    structure will be added at the end.



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