Merge branch 'tracing/core' into tracing/hw-breakpoints

Conflicts:
	arch/Kconfig
	kernel/trace/trace.h

Merge reason: resolve the conflicts, plus adopt to the new
              ring-buffer APIs.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 8 insertions, 20 deletions

diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c
index 6874c7dca75a..b7c3490eaa24 100644
--- a/arch/arm/kernel/irq.c
+++ b/arch/arm/kernel/irq.c
@@ -98,17 +98,6 @@ unlock:
         return 0;
 }
 
-/* Handle bad interrupts */
-static struct irq_desc bad_irq_desc = {
-        .handle_irq = handle_bad_irq,
-        .lock = __SPIN_LOCK_UNLOCKED(bad_irq_desc.lock),
-};
-
-#ifdef CONFIG_CPUMASK_OFFSTACK
-/* We are not allocating bad_irq_desc.affinity or .pending_mask */
-#error "ARM architecture does not support CONFIG_CPUMASK_OFFSTACK."
-#endif
-
 /*
  * do_IRQ handles all hardware IRQ's.  Decoded IRQs should not
  * come via this function.  Instead, they should provide their
@@ -124,10 +113,13 @@ asmlinkage void __exception asm_do_IRQ(unsigned int irq, struct pt_regs *regs)
          * Some hardware gives randomly wrong interrupts.  Rather
          * than crashing, do something sensible.
          */
-        if (irq >= NR_IRQS)
-                handle_bad_irq(irq, &bad_irq_desc);
-        else
+        if (unlikely(irq >= NR_IRQS)) {
+                if (printk_ratelimit())
+                        printk(KERN_WARNING "Bad IRQ%u\n", irq);
+                ack_bad_irq(irq);
+        } else {
                 generic_handle_irq(irq);
+        }
 
         /* AT91 specific workaround */
         irq_finish(irq);
@@ -165,10 +157,6 @@ void __init init_IRQ(void)
         for (irq = 0; irq < NR_IRQS; irq++)
                 irq_desc[irq].status |= IRQ_NOREQUEST | IRQ_NOPROBE;
 
-#ifdef CONFIG_SMP
-        cpumask_setall(bad_irq_desc.affinity);
-        bad_irq_desc.cpu = smp_processor_id();
-#endif
         init_arch_irq();
 }
 
@@ -176,7 +164,7 @@ void __init init_IRQ(void)
 
 static void route_irq(struct irq_desc *desc, unsigned int irq, unsigned int cpu)
 {
-        pr_debug("IRQ%u: moving from cpu%u to cpu%u\n", irq, desc->cpu, cpu);
+        pr_debug("IRQ%u: moving from cpu%u to cpu%u\n", irq, desc->node, cpu);
 
         spin_lock_irq(&desc->lock);
         desc->chip->set_affinity(irq, cpumask_of(cpu));
@@ -195,7 +183,7 @@ void migrate_irqs(void)
         for (i = 0; i < NR_IRQS; i++) {
                 struct irq_desc *desc = irq_desc + i;
 
-                if (desc->cpu == cpu) {
+                if (desc->node == cpu) {
                         unsigned int newcpu = cpumask_any_and(desc->affinity,
                                                               cpu_online_mask);
                         if (newcpu >= nr_cpu_ids) {