Messages in this thread | | | Subject | Re: [RFC][PATCH] Cascaded interrupts: a simple solution | From | Benjamin Herrenschmidt <> | Date | Thu, 11 May 2006 16:13:43 +1000 |
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> Index: linux-work/kernel/irq/manage.c > =================================================================== > --- linux-work.orig/kernel/irq/manage.c 2006-05-11 11:45:09.000000000 +1000 > +++ linux-work/kernel/irq/manage.c 2006-05-11 12:00:52.000000000 +1000 > @@ -371,6 +371,13 @@ int request_irq(unsigned int irq, > if (!handler) > return -EINVAL; > > + /* > + * SA_CASCADE implies SA_INTERRUPT (that is, the demux itself happens > + * with interrupts disabled, the final handler is still called with > + */ > + if (irqflags & SA_CASCADEIRQ) > + irqflags |= SA_INTERRUPT; > +
Oh and that bit isn't actually necessary ...
Ben.
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