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cpumask: make irq_set_affinity() take a const struct cpumask

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Impact: change existing irq_chip API

Not much point with gentle transition here: the struct irq_chip's
setaffinity method signature needs to change.

Fortunately, not widely used code, but hits a few architectures.

Note: In irq_select_affinity() I save a temporary in by mangling
irq_desc[irq].affinity directly.  Ingo, does this break anything?

(Folded in fix from KOSAKI Motohiro)

Signed-off-by: Rusty Russell <[email protected]>
Signed-off-by: Mike Travis <[email protected]>
Reviewed-by: Grant Grundler <[email protected]>
Acked-by: Ingo Molnar <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: KOSAKI Motohiro <[email protected]>
This commit is contained in:
Rusty Russell 2008-12-13 21:20:26 +10:30
commit 0de26520c7
42 changed files with 171 additions and 161 deletions
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6
drivers/xen/events.c
View file

@ -579,7 +579,7 @@ void rebind_evtchn_irq(int evtchn, int irq)
spin_unlock(&irq_mapping_update_lock);
/* new event channels are always bound to cpu 0 */
irq_set_affinity(irq, cpumask_of_cpu(0));
irq_set_affinity(irq, cpumask_of(0));
/* Unmask the event channel. */
enable_irq(irq);
@ -608,9 +608,9 @@ static void rebind_irq_to_cpu(unsigned irq, unsigned tcpu)
}
static void set_affinity_irq(unsigned irq, cpumask_t dest)
static void set_affinity_irq(unsigned irq, const struct cpumask *dest)
{
unsigned tcpu = first_cpu(dest);
unsigned tcpu = cpumask_first(dest);
rebind_irq_to_cpu(irq, tcpu);
}