Re: [RFC] killing the NR_IRQS arrays.

[Benjamin Herrenschmidt]

> > Similarly, in a pci device, one could imagine that the
> > struct pci_driver contains a irq_handler_t member that
> > is registered from the pci_device_probe() function
> > if present.
> 
> Yes.  There is some potential there.  Although we would have to go
> through an extra hoop to make it a pci specific handler type.

Beware with that approach though. If you are on a shared IRQ line, when
do you start getting called when an IRQ happen (possibly for the "other"
device) ? As soon as you are bound to the device ? But that means
potentially before the driver internal data structures are fully
initialized...

I like the driver having in control the "hooking" of the irq handler,
thus, when it starts being capable of handling interrupts (even if they
aren't initiated by that driver's device).



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