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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 <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>
Reviewed-by: Grant Grundler <grundler@parisc-linux.org>
Acked-by: Ingo Molnar <mingo@redhat.com>
Cc: ralf@linux-mips.org
Cc: grundler@parisc-linux.org
Cc: jeremy@xensource.com
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
This commit is contained in:
Rusty Russell
2008-12-13 21:20:26 +10:30
parent 29c0177e6a
commit 0de26520c7
42 changed files with 172 additions and 162 deletions
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4
arch/arm/oprofile/op_model_mpcore.c
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@@ -260,10 +260,10 @@ static void em_stop(void)
static void em_route_irq(int irq, unsigned int cpu)
{
struct irq_desc *desc = irq_desc + irq;
cpumask_t mask = cpumask_of_cpu(cpu);
const struct cpumask *mask = cpumask_of(cpu);
spin_lock_irq(&desc->lock);
desc->affinity = mask;
desc->affinity = *mask;
desc->chip->set_affinity(irq, mask);
spin_unlock_irq(&desc->lock);
}