x86/irq: Refine the way to allocate irq_cfg for legacy IRQs

[deliverable/linux.git] / arch / x86 / kernel / apic / io_apic.c

diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 3406dbec15706b3e4d2fdbfde9ac60b06b1474fd..16d4ba3ac844d44a0eac2692f79650a14657bcec 100644 (file)
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -254,8 +254,7 @@ static void free_ioapic_saved_registers(int idx)
 
 int __init arch_early_ioapic_init(void)
 {
-       struct irq_cfg *cfg;
-       int i, node = cpu_to_node(0);
+       int i;
 
        if (!nr_legacy_irqs())
                io_apic_irqs = ~0UL;
@@ -263,16 +262,6 @@ int __init arch_early_ioapic_init(void)
        for_each_ioapic(i)
                alloc_ioapic_saved_registers(i);
 
-       /*
-        * For legacy IRQ's, start with assigning irq0 to irq15 to
-        * IRQ0_VECTOR to IRQ15_VECTOR for all cpu's.
-        */
-       for (i = 0; i < nr_legacy_irqs(); i++) {
-               cfg = alloc_irq_and_cfg_at(i, node);
-               cfg->vector = IRQ0_VECTOR + i;
-               cpumask_setall(cfg->domain);
-       }
-
        return 0;
 }