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irq: change ->set_affinity() to return status

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according to Ingo, change set_affinity() in irq_chip should return int,
because that way we can handle failure cases in a much cleaner way, in
the genirq layer.

v2: fix two typos

[ Impact: extend API ]

Signed-off-by: Yinghai Lu <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Suresh Siddha <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Cc: Rusty Russell <[email protected]>
Cc: [email protected]
LKML-Reference: <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Yinghai Lu 2009-04-27 17:59:21 -07:00 • committed by Ingo Molnar
commit d5dedd4507
23 changed files with 140 additions and 74 deletions
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6
drivers/parisc/iosapic.c
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@ -702,7 +702,7 @@ static unsigned int iosapic_startup_irq(unsigned int irq)
}
#ifdef CONFIG_SMP
static void iosapic_set_affinity_irq(unsigned int irq,
static int iosapic_set_affinity_irq(unsigned int irq,
const struct cpumask *dest)
{
struct vector_info *vi = iosapic_get_vector(irq);
@ -712,7 +712,7 @@ static void iosapic_set_affinity_irq(unsigned int irq,
dest_cpu = cpu_check_affinity(irq, dest);
if (dest_cpu < 0)
return;
return -1;
cpumask_copy(irq_desc[irq].affinity, cpumask_of(dest_cpu));
vi->txn_addr = txn_affinity_addr(irq, dest_cpu);
@ -724,6 +724,8 @@ static void iosapic_set_affinity_irq(unsigned int irq,
iosapic_set_irt_data(vi, &dummy_d0, &d1);
iosapic_wr_irt_entry(vi, d0, d1);
spin_unlock_irqrestore(&iosapic_lock, flags);
return 0;
}
#endif