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    SubjectRe: [PATCH 9 of 20] ipath - char devices for diagnostics and lightweight subnet management
    On Fri, Mar 10, 2006 at 05:43:50AM -0800, Bryan O'Sullivan wrote:
    > On Thu, 2006-03-09 at 21:55 -0800, Roland Dreier wrote:
    >
    > > No, the only problems are with the way the various pieces of your
    > > drivers refer to devices by index.
    >
    > OK. What's a safe way to iterate over the devices in the presence of
    > hotplug, then? I assume it's list_for_each_mumble; I just don't know
    > what mumble is :-)

    You keep an internal list of devices, if you really need to do such a
    thing.

    > > Also you only do this when the module is loaded, so you won't handle
    > > devices that are hot-plugged later.
    >
    > No, ipath_max is updated any time a probe routine is called.
    >
    > > And I don't see anything that
    > > would handle hot unplug either.
    >
    > What would this anything look like, if I were hoping for an example to
    > emulate? There's nothing in LDD3 about this, so I'm kind of in the
    > dark.

    It's just the "disconnect" PCI function being called, which can happen
    at any time.

    thanks,

    greg k-h
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