Messages in this thread | | | Date | Fri, 10 Oct 2008 22:49:07 +0100 | From | Alan Cox <> | Subject | Re: [stable] [PATCH] x86: Reserve FIRST_DEVICE_VECTOR in used_vectors bitmap |
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> > And more importantly dev->irq == 0 or IRQ == 0 to anything but arch > > internal code means "no interrupt line". > > I thought we had changed that a while ago, as some arches had 0 as a > valid irq line.
No .. Linus decreed (and I think sensibly myself that IRQ = 0 meant no IRQ assigned).. the argument being that in C you naturally write stuff like
if (!dev->irq)
I can dig up the reference URLS to the list mails if you want
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