4 files changed, 7 insertions, 28 deletions

diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index e3b534cda49a..8cf86fb3b4e3 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -1665,10 +1665,7 @@ int __init APIC_init_uniprocessor(void)
         }
 #endif
 
-#ifndef CONFIG_SMP
-        enable_IR_x2apic();
         default_setup_apic_routing();
-#endif
 
         verify_local_APIC();
         connect_bsp_APIC();
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 5aee1d1a306d..fe92916acd2a 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -1377,21 +1377,7 @@ int setup_ioapic_entry(int apic_id, int irq,
                 if (index < 0)
                         panic("Failed to allocate IRTE for ioapic %d\n", apic_id);
 
-                memset(&irte, 0, sizeof(irte));
-
-                irte.present = 1;
-                irte.dst_mode = apic->irq_dest_mode;
-                /*
-                 * Trigger mode in the IRTE will always be edge, and the
-                 * actual level or edge trigger will be setup in the IO-APIC
-                 * RTE. This will help simplify level triggered irq migration.
-                 * For more details, see the comments above explainig IO-APIC
-                 * irq migration in the presence of interrupt-remapping.
-                 */
-                irte.trigger_mode = 0;
-                irte.dlvry_mode = apic->irq_delivery_mode;
-                irte.vector = vector;
-                irte.dest_id = IRTE_DEST(destination);
+                prepare_irte(&irte, vector, destination);
 
                 /* Set source-id of interrupt request */
                 set_ioapic_sid(&irte, apic_id);
@@ -3335,14 +3321,7 @@ static int msi_compose_msg(struct pci_dev *pdev, unsigned int irq,
                 ir_index = map_irq_to_irte_handle(irq, &sub_handle);
                 BUG_ON(ir_index == -1);
 
-                memset (&irte, 0, sizeof(irte));
-
-                irte.present = 1;
-                irte.dst_mode = apic->irq_dest_mode;
-                irte.trigger_mode = 0; /* edge */
-                irte.dlvry_mode = apic->irq_delivery_mode;
-                irte.vector = cfg->vector;
-                irte.dest_id = IRTE_DEST(dest);
+                prepare_irte(&irte, cfg->vector, dest);
 
                 /* Set source-id of interrupt request */
                 if (pdev)
diff --git a/arch/x86/kernel/apic/probe_64.c b/arch/x86/kernel/apic/probe_64.c
index 83e9be4778e2..f9e4e6a54073 100644
--- a/arch/x86/kernel/apic/probe_64.c
+++ b/arch/x86/kernel/apic/probe_64.c
@@ -54,6 +54,9 @@ static int apicid_phys_pkg_id(int initial_apic_id, int index_msb)
  */
 void __init default_setup_apic_routing(void)
 {
+
+        enable_IR_x2apic();
+
 #ifdef CONFIG_X86_X2APIC
         if (x2apic_mode
 #ifdef CONFIG_X86_UV
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 8b3bfc4dd708..87a8c6b00f8d 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -1109,8 +1109,6 @@ void __init native_smp_prepare_cpus(unsigned int max_cpus)
         }
         set_cpu_sibling_map(0);
 
-        enable_IR_x2apic();
-        default_setup_apic_routing();
 
         if (smp_sanity_check(max_cpus) < 0) {
                 printk(KERN_INFO "SMP disabled\n");
@@ -1118,6 +1116,8 @@ void __init native_smp_prepare_cpus(unsigned int max_cpus)
                 goto out;
         }
 
+        default_setup_apic_routing();
+
         preempt_disable();
         if (read_apic_id() != boot_cpu_physical_apicid) {
                 panic("Boot APIC ID in local APIC unexpected (%d vs %d)",