[PATCH] fix nosmp & pcibios_fixup_irqs() interaction

Fix interaction between nosmp and pcibios_fixup_irqs().

When we boot with nosmp we dont have all the mptable info, so
IO_APIC_get_PCI_irq_vector() doesnt work and devices just end up getting a
wrong interrupt.

From: Oleg Nesterov <oleg@tv-sign.ru>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

include/asm-i386/io_apic.h

@@ -193,7 +193,7 @@ extern int skip_ioapic_setup;
  * If we use the IO-APIC for IRQ routing, disable automatic
  * assignment of PCI IRQ's.
  */
-#define io_apic_assign_pci_irqs (mp_irq_entries && !skip_ioapic_setup)
+#define io_apic_assign_pci_irqs (mp_irq_entries && !skip_ioapic_setup && io_apic_irqs)
 
 #ifdef CONFIG_ACPI_BOOT
 extern int io_apic_get_unique_id (int ioapic, int apic_id);