x86: Move ioapic_ids_setup to x86_init_ops

32bit and also the numaq code have special requirements on the
ioapic_id setup. Convert it to a x86_init_ops function and get rid
of the quirks and #ifdefs

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index d2ed6c5..5f46871 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -2014,7 +2014,7 @@
  * by Matt Domsch <Matt_Domsch@dell.com>  Tue Dec 21 12:25:05 CST 1999
  */
 
-static void __init setup_ioapic_ids_from_mpc(void)
+void __init setup_ioapic_ids_from_mpc(void)
 {
 	union IO_APIC_reg_00 reg_00;
 	physid_mask_t phys_id_present_map;
@@ -2023,9 +2023,8 @@
 	unsigned char old_id;
 	unsigned long flags;
 
-	if (x86_quirks->setup_ioapic_ids && x86_quirks->setup_ioapic_ids())
+	if (acpi_ioapic)
 		return;
-
 	/*
 	 * Don't check I/O APIC IDs for xAPIC systems.  They have
 	 * no meaning without the serial APIC bus.
@@ -3061,10 +3060,8 @@
 	/*
          * Set up IO-APIC IRQ routing.
          */
-#ifdef CONFIG_X86_32
-	if (!acpi_ioapic)
-		setup_ioapic_ids_from_mpc();
-#endif
+	x86_init.mpparse.setup_ioapic_ids();
+
 	sync_Arb_IDs();
 	setup_IO_APIC_irqs();
 	init_IO_APIC_traps();
diff --git a/arch/x86/kernel/apic/numaq_32.c b/arch/x86/kernel/apic/numaq_32.c
index b5f0b1d..f371765 100644
--- a/arch/x86/kernel/apic/numaq_32.c
+++ b/arch/x86/kernel/apic/numaq_32.c
@@ -262,12 +262,6 @@
 	}
 }
 
-static int __init numaq_setup_ioapic_ids(void)
-{
-	/* so can skip it */
-	return 1;
-}
-
 static struct x86_quirks numaq_x86_quirks __initdata = {
 	.arch_pre_time_init		= numaq_pre_time_init,
 	.arch_time_init			= NULL,
@@ -280,7 +274,6 @@
 	.mpc_oem_bus_info		= mpc_oem_bus_info,
 	.mpc_oem_pci_bus		= mpc_oem_pci_bus,
 	.smp_read_mpc_oem		= smp_read_mpc_oem,
-	.setup_ioapic_ids		= numaq_setup_ioapic_ids,
 };
 
 static __init void early_check_numaq(void)
@@ -299,6 +292,7 @@
 	if (found_numaq) {
 		x86_quirks = &numaq_x86_quirks;
 		x86_init.mpparse.mpc_record = numaq_mpc_record;
+		x86_init.mpparse.setup_ioapic_ids = x86_init_noop;
 	}
 }
 
diff --git a/arch/x86/kernel/head32.c b/arch/x86/kernel/head32.c
index 921a23b..a21398f 100644
--- a/arch/x86/kernel/head32.c
+++ b/arch/x86/kernel/head32.c
@@ -13,6 +13,8 @@
 #include <asm/e820.h>
 #include <asm/page.h>
 #include <asm/trampoline.h>
+#include <asm/apic.h>
+#include <asm/io_apic.h>
 
 void __init i386_start_kernel(void)
 {
@@ -32,6 +34,7 @@
 	/* Initilize 32bit specific setup functions */
 	x86_init.resources.probe_roms = probe_roms;
 	x86_init.resources.reserve_resources = i386_reserve_resources;
+	x86_init.mpparse.setup_ioapic_ids = setup_ioapic_ids_from_mpc;
 
 	x86_init.resources.reserve_ebda_region();
 
diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
index 83bd5db..f4a32b3 100644
--- a/arch/x86/kernel/x86_init.c
+++ b/arch/x86/kernel/x86_init.c
@@ -27,5 +27,6 @@
 
 	.mpparse = {
 		.mpc_record		= x86_init_uint_noop,
+		.setup_ioapic_ids	= x86_init_noop,
 	},
 };