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SubjectRe: [patch] x86 supports NO_IRQ convention
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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