Messages in this thread | | | Date | Fri, 10 Mar 2006 08:58:13 -0800 | From | Greg KH <> | Subject | Re: [PATCH 9 of 20] ipath - char devices for diagnostics and lightweight subnet management |
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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,
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