x86, irq: Remove pointless irq_reserve_irqs() call

That's a leftover from the time where x86 supported SPARSE_IRQ=n.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Grant Likely <grant.likely@linaro.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: x86@kernel.org
Link: http://lkml.kernel.org/r/20140507154338.967285614@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 0 insertions, 3 deletions

diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index efda2f648f59..9d0a9795a0f8 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -206,9 +206,6 @@ int __init arch_early_irq_init(void)
         count = ARRAY_SIZE(irq_cfgx);
         node = cpu_to_node(0);
 
-        /* Make sure the legacy interrupts are marked in the bitmap */
-        irq_reserve_irqs(0, legacy_pic->nr_legacy_irqs);
-
         for (i = 0; i < count; i++) {
                 irq_set_chip_data(i, &cfg[i]);
                 zalloc_cpumask_var_node(&cfg[i].domain, GFP_KERNEL, node);