Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (96 commits)
  apic, x86: Use BIOS settings for IBS and MCE threshold interrupt LVT offsets
  apic, x86: Check if EILVT APIC registers are available (AMD only)
  x86: ioapic: Call free_irte only if interrupt remapping enabled
  arm: Use ARCH_IRQ_INIT_FLAGS
  genirq, ARM: Fix boot on ARM platforms
  genirq: Fix CONFIG_GENIRQ_NO_DEPRECATED=y build
  x86: Switch sparse_irq allocations to GFP_KERNEL
  genirq: Switch sparse_irq allocator to GFP_KERNEL
  genirq: Make sparse_lock a mutex
  x86: lguest: Use new irq allocator
  genirq: Remove the now unused sparse irq leftovers
  genirq: Sanitize dynamic irq handling
  genirq: Remove arch_init_chip_data()
  x86: xen: Sanitise sparse_irq handling
  x86: Use sane enumeration
  x86: uv: Clean up the direct access to irq_desc
  x86: Make io_apic.c local functions static
  genirq: Remove irq_2_iommu
  x86: Speed up the irq_remapped check in hot pathes
  intr_remap: Simplify the code further
  ...

Fix up trivial conflicts in arch/x86/Kconfig

1 files changed, 24 insertions, 30 deletions

diff --git a/arch/x86/kernel/apb_timer.c b/arch/x86/kernel/apb_timer.c
index 6fe2b5cb4f3c..92543c73cf8e 100644
--- a/arch/x86/kernel/apb_timer.c
+++ b/arch/x86/kernel/apb_timer.c
@@ -231,34 +231,6 @@ static void apbt_restart_clocksource(struct clocksource *cs)
         apbt_start_counter(phy_cs_timer_id);
 }
 
-/* Setup IRQ routing via IOAPIC */
-#ifdef CONFIG_SMP
-static void apbt_setup_irq(struct apbt_dev *adev)
-{
-        struct irq_chip *chip;
-        struct irq_desc *desc;
-
-        /* timer0 irq has been setup early */
-        if (adev->irq == 0)
-                return;
-        desc = irq_to_desc(adev->irq);
-        chip = get_irq_chip(adev->irq);
-        disable_irq(adev->irq);
-        desc->status |= IRQ_MOVE_PCNTXT;
-        irq_set_affinity(adev->irq, cpumask_of(adev->cpu));
-        /* APB timer irqs are set up as mp_irqs, timer is edge triggerred */
-        set_irq_chip_and_handler_name(adev->irq, chip, handle_edge_irq, "edge");
-        enable_irq(adev->irq);
-        if (system_state == SYSTEM_BOOTING)
-                if (request_irq(adev->irq, apbt_interrupt_handler,
-                                IRQF_TIMER | IRQF_DISABLED | IRQF_NOBALANCING,
-                                adev->name, adev)) {
-                        printk(KERN_ERR "Failed request IRQ for APBT%d\n",
-                               adev->num);
-                }
-}
-#endif
-
 static void apbt_enable_int(int n)
 {
         unsigned long ctrl = apbt_readl(n, APBTMR_N_CONTROL);
@@ -334,6 +306,27 @@ static int __init apbt_clockevent_register(void)
 }
 
 #ifdef CONFIG_SMP
+
+static void apbt_setup_irq(struct apbt_dev *adev)
+{
+        /* timer0 irq has been setup early */
+        if (adev->irq == 0)
+                return;
+
+        if (system_state == SYSTEM_BOOTING) {
+                irq_modify_status(adev->irq, 0, IRQ_MOVE_PCNTXT);
+                /* APB timer irqs are set up as mp_irqs, timer is edge type */
+                __set_irq_handler(adev->irq, handle_edge_irq, 0, "edge");
+                if (request_irq(adev->irq, apbt_interrupt_handler,
+                                IRQF_TIMER | IRQF_DISABLED | IRQF_NOBALANCING,
+                                adev->name, adev)) {
+                        printk(KERN_ERR "Failed request IRQ for APBT%d\n",
+                               adev->num);
+                }
+        } else
+                enable_irq(adev->irq);
+}
+
 /* Should be called with per cpu */
 void apbt_setup_secondary_clock(void)
 {
@@ -389,10 +382,11 @@ static int apbt_cpuhp_notify(struct notifier_block *n,
 
         switch (action & 0xf) {
         case CPU_DEAD:
+                disable_irq(adev->irq);
                 apbt_disable_int(cpu);
-                if (system_state == SYSTEM_RUNNING)
+                if (system_state == SYSTEM_RUNNING) {
                         pr_debug("skipping APBT CPU %lu offline\n", cpu);
-                else if (adev) {
+                } else if (adev) {
                         pr_debug("APBT clockevent for cpu %lu offline\n", cpu);
                         free_irq(adev->irq, adev);
                 }