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x86: Remove useless reinitialization of irq descriptors

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The descriptors are already initialized in exactly this way.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Thomas Gleixner 2010-09-28 00:15:31 +02:00
parent 39431acb1a
commit 011d578fda
1 changed files with 4 additions and 13 deletions
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17
arch/x86/kernel/irqinit.c
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@ -100,6 +100,8 @@ int vector_used_by_percpu_irq(unsigned int vector)
void __init init_ISA_irqs(void)
{
struct irq_chip *chip = legacy_pic->chip;
const char *name = chip->name;
int i;
#if defined(CONFIG_X86_64) || defined(CONFIG_X86_LOCAL_APIC)
@ -107,19 +109,8 @@ void __init init_ISA_irqs(void)
#endif
legacy_pic->init(0);
/*
* 16 old-style INTA-cycle interrupts:
*/
for (i = 0; i < legacy_pic->nr_legacy_irqs; i++) {
struct irq_desc *desc = irq_to_desc(i);
desc->status = IRQ_DISABLED;
desc->action = NULL;
desc->depth = 1;
set_irq_chip_and_handler_name(i, &i8259A_chip,
handle_level_irq, "XT");
}
for (i = 0; i < legacy_pic->nr_legacy_irqs; i++)
set_irq_chip_and_handler_name(i, chip, handle_level_irq, name);
}
void __init init_IRQ(void)