Re: [PATCH] fix return value of i8042_aux_test_irq

[Alan Cox]

> > A small number of boxes do share IRQ12 and it was switched to shared for
> > them.
> If that is the case interrupt handlers should be able to determine whether
> a certain interrupt comes from their respective devices, and return
> IRQ_HANDLED or IRQ_NONE accordingly. Returning IRQ_HANDLED unconditionally
> when IRQF_SHARED is set seems strange. Is this behavior intended?

Sometimes you simple can't tell and in those cases you have no choice.

Alan
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