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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
Download Patch File Download Diff File Expand all files Collapse all files

2
arch/mips/kernel/cevt-bcm1480.c
View File

@@ -148,6 +148,6 @@ void __cpuinit sb1480_clockevent_init(void)
action->name = name;
action->dev_id = cd;
irq_set_affinity(irq, cpumask_of_cpu(cpu));
irq_set_affinity(irq, cpumask_of(cpu));
setup_irq(irq, action);
}

2
arch/mips/kernel/cevt-sb1250.c
View File

@@ -147,6 +147,6 @@ void __cpuinit sb1250_clockevent_init(void)
action->name = name;
action->dev_id = cd;
irq_set_affinity(irq, cpumask_of_cpu(cpu));
irq_set_affinity(irq, cpumask_of(cpu));
setup_irq(irq, action);
}

6
arch/mips/kernel/irq-gic.c
View File

@@ -155,7 +155,7 @@ static void gic_unmask_irq(unsigned int irq)
static DEFINE_SPINLOCK(gic_lock);
static void gic_set_affinity(unsigned int irq, cpumask_t cpumask)
static void gic_set_affinity(unsigned int irq, const struct cpumask *cpumask)
{
cpumask_t tmp = CPU_MASK_NONE;
unsigned long flags;
@@ -164,7 +164,7 @@ static void gic_set_affinity(unsigned int irq, cpumask_t cpumask)
pr_debug(KERN_DEBUG "%s called\n", __func__);
irq -= _irqbase;
cpus_and(tmp, cpumask, cpu_online_map);
cpumask_and(&tmp, cpumask, cpu_online_mask);
if (cpus_empty(tmp))
return;
@@ -187,7 +187,7 @@ static void gic_set_affinity(unsigned int irq, cpumask_t cpumask)
set_bit(irq, pcpu_masks[first_cpu(tmp)].pcpu_mask);
}
irq_desc[irq].affinity = cpumask;
irq_desc[irq].affinity = *cpumask;
spin_unlock_irqrestore(&gic_lock, flags);
}