cpumask: Optimize cpumask_of_cpu in arch/x86/kernel/io_apic_64.c

  * Optimize various places where a pointer to the cpumask_of_cpu value
    will result in reducing stack pressure.

Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 1 insertions, 3 deletions

diff --git a/arch/x86/kernel/io_apic_64.c b/arch/x86/kernel/io_apic_64.c
index bf27114773d5..a85db790754b 100644
--- a/arch/x86/kernel/io_apic_64.c
+++ b/arch/x86/kernel/io_apic_64.c
@@ -1372,12 +1372,10 @@ static unsigned int startup_ioapic_irq(unsigned int irq)
 static int ioapic_retrigger_irq(unsigned int irq)
 {
         struct irq_cfg *cfg = &irq_cfg[irq];
-        cpumask_t mask;
         unsigned long flags;
 
         spin_lock_irqsave(&vector_lock, flags);
-        mask = cpumask_of_cpu(first_cpu(cfg->domain));
-        send_IPI_mask(mask, cfg->vector);
+        send_IPI_mask(cpumask_of_cpu(first_cpu(cfg->domain)), cfg->vector);
         spin_unlock_irqrestore(&vector_lock, flags);
 
         return 1;