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irq: optimize init_kstat_irqs/init_copy_kstat_irqs

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Simplify and make init_kstat_irqs etc more type proof, suggested by
Andrew.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Yinghai Lu
2009-02-08 16:18:03 -08:00
committed by Ingo Molnar
parent 0f3c2a89c1
commit 005bf0e6fa
2 changed files with 14 additions and 17 deletions
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11
kernel/irq/numa_migrate.c
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@@ -17,16 +17,11 @@ static void init_copy_kstat_irqs(struct irq_desc *old_desc,
struct irq_desc *desc,
int cpu, int nr)
{
unsigned long bytes;
init_kstat_irqs(desc, cpu, nr);
if (desc->kstat_irqs != old_desc->kstat_irqs) {
/* Compute how many bytes we need per irq and allocate them */
bytes = nr * sizeof(unsigned int);
memcpy(desc->kstat_irqs, old_desc->kstat_irqs, bytes);
}
if (desc->kstat_irqs != old_desc->kstat_irqs)
memcpy(desc->kstat_irqs, old_desc->kstat_irqs,
nr * sizeof(*desc->kstat_irqs));
}
static void free_kstat_irqs(struct irq_desc *old_desc, struct irq_desc *desc)