Messages in this thread | | | Subject | Re: lockdep and threaded IRQs | From | Peter Zijlstra <> | Date | Tue, 03 Mar 2009 00:02:23 +0100 |
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On Mon, 2009-03-02 at 14:46 -0800, David Miller wrote: > From: Peter Zijlstra <a.p.zijlstra@chello.nl> > Date: Mon, 02 Mar 2009 23:19:31 +0100 > > > I state that every !IRQF_DISABLED usage is a bug, either due to broken > > hardware or broken drivers. > > We'll send you the bill to have everyone's hardware > replaced :-)
I'm not saying to remove support for such stuff, as long as we clearly annotate that its due to broken ass hardware we can leave a IRQF_ENABLED thingy in there.
Preferably such drivers would be converted to threaded interrupts, but I thought Alan mentioned an IDE chipset that was so broken even that would be impossible (could not mask the IRQ for it would corrupt stuff).
The thing I am strongly opposing though, is keeping interrupts enabled for regular drivers on sane hardware.
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