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IRQ: check for PERCPU flag only when adding first irqaction

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An irqaction structure won't be added to an IRQ descriptor irqaction list if
it doesn't agree with other irqactions on the IRQF_PERCPU flag.  Don't check
for this flag to change IRQ descriptor `status' for every irqaction added to
the list, Doing the check only for the first irqaction added is enough.

Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Ahmed S. Darwish 2007-05-08 00:27:55 -07:00 committed by Linus Torvalds
parent 3367b994fe
commit f75d222b83
1 changed files with 6 additions and 4 deletions
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10
kernel/irq/manage.c
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@ -317,10 +317,7 @@ int setup_irq(unsigned int irq, struct irqaction *new)
}
*p = new;
#if defined(CONFIG_IRQ_PER_CPU)
if (new->flags & IRQF_PERCPU)
desc->status |= IRQ_PER_CPU;
#endif
/* Exclude IRQ from balancing */
if (new->flags & IRQF_NOBALANCING)
desc->status |= IRQ_NO_BALANCING;
@ -328,6 +325,11 @@ int setup_irq(unsigned int irq, struct irqaction *new)
if (!shared) {
irq_chip_set_defaults(desc->chip);
#if defined(CONFIG_IRQ_PER_CPU)
if (new->flags & IRQF_PERCPU)
desc->status |= IRQ_PER_CPU;
#endif
/* Setup the type (level, edge polarity) if configured: */
if (new->flags & IRQF_TRIGGER_MASK) {
if (desc->chip && desc->chip->set_type)