Messages in this thread | | | Date | Mon, 23 Jun 2008 20:20:41 -0600 | From | Robert Hancock <> | Subject | Re: [patch] x86 supports NO_IRQ convention |
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David Brownell wrote: > On Monday 23 June 2008, Benjamin Herrenschmidt wrote: >> NO_IRQ on x86 is 0 > > There is no such #define for it. > And since zero is used for timer IRQs, it's not invalid.
As far as drivers are concerned it is. IRQ 0 is only used by architecture-specific code and is not sharable, so drivers need not be concerned about it.
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