ide pmac breakage

[Alan Cox]

> There seems to be some confusion between warm-plugging of IDE devices
> and hot-plugging of IDE devices.
> 
> > not a single piece of HW to exercise those code path ? I don't ask you
> > to get a powermac with a media-bay, but ide_cs seems to be a pretty
> > important one that's part of what the ide maintainer should take care
> > of... And I suspect it's going to exercise the same code path as
> > mediabay.

That confuses people sometimes - ide_cs is a controller hotplug not a
device hotplug ...