The descriptors are already initialized in exaclty this way.
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
arch/x86/kernel/irqinit.c | 17 ++++-------------
1 file changed, 4 insertions(+), 13 deletions(-)
Index: linux-2.6-tip/arch/x86/kernel/irqinit.c
===================================================================
--- linux-2.6-tip.orig/arch/x86/kernel/irqinit.c
+++ linux-2.6-tip/arch/x86/kernel/irqinit.c
@@ -100,6 +100,8 @@ int vector_used_by_percpu_irq(unsigned i
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)
--
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