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

Pull irq code updates from Thomas Gleixner:
 "The irq department proudly presents:

   - Another tree wide sweep of irq infrastructure abuse.  Clear winner
     of the trainwreck engineering contest was:
         #include "../../../kernel/irq/settings.h"

   - Tree wide update of irq_set_affinity() callbacks which miss a cpu
     online check when picking a single cpu out of the affinity mask.

   - Tree wide consolidation of interrupt statistics.

   - Updates to the threaded interrupt infrastructure to allow explicit
     wakeup of the interrupt thread and a variant of synchronize_irq()
     which synchronizes only the hard interrupt handler.  Both are
     needed to replace the homebrewn thread handling in the mmc/sdhci
     code.

   - New irq chip callbacks to allow proper support for GPIO based irqs.
     The GPIO based interrupts need to request/release GPIO resources
     from request/free_irq.

   - A few new ARM interrupt chips.  No revolutionary new hardware, just
     differently wreckaged variations of the scheme.

   - Small improvments, cleanups and updates all over the place"

I was hoping that that trainwreck engineering contest was a April Fools'
joke.  But no.

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (68 commits)
  irqchip: sun7i/sun6i: Disable NMI before registering the handler
  ARM: sun7i/sun6i: dts: Fix IRQ number for sun6i NMI controller
  ARM: sun7i/sun6i: irqchip: Update the documentation
  ARM: sun7i/sun6i: dts: Add NMI irqchip support
  ARM: sun7i/sun6i: irqchip: Add irqchip driver for NMI controller
  genirq: Export symbol no_action()
  arm: omap: Fix typo in ams-delta-fiq.c
  m68k: atari: Fix the last kernel_stat.h fallout
  irqchip: sun4i: Simplify sun4i_irq_ack
  irqchip: sun4i: Use handle_fasteoi_irq for all interrupts
  genirq: procfs: Make smp_affinity values go+r
  softirq: Add linux/irq.h to make it compile again
  m68k: amiga: Add linux/irq.h to make it compile again
  irqchip: sun4i: Don't ack IRQs > 0, fix acking of IRQ 0
  irqchip: sun4i: Fix a comment about mask register initialization
  irqchip: sun4i: Fix irq 0 not working
  genirq: Add a new IRQCHIP_EOI_THREADED flag
  genirq: Document IRQCHIP_ONESHOT_SAFE flag
  ARM: sunxi: dt: Convert to the new irq controller compatibles
  irqchip: sunxi: Change compatibles
  ...

5 files changed, 7 insertions, 26 deletions

diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c
index 1034884b77da..0884f5ecbcc3 100644
--- a/arch/ia64/kernel/irq_ia64.c
+++ b/arch/ia64/kernel/irq_ia64.c
@@ -364,7 +364,6 @@ static irqreturn_t smp_irq_move_cleanup_interrupt(int irq, void *dev_id)
 
 static struct irqaction irq_move_irqaction = {
         .handler =      smp_irq_move_cleanup_interrupt,
-        .flags =        IRQF_DISABLED,
         .name =         "irq_move"
 };
 
@@ -489,14 +488,13 @@ ia64_handle_irq (ia64_vector vector, struct pt_regs *regs)
         ia64_srlz_d();
         while (vector != IA64_SPURIOUS_INT_VECTOR) {
                 int irq = local_vector_to_irq(vector);
-                struct irq_desc *desc = irq_to_desc(irq);
 
                 if (unlikely(IS_LOCAL_TLB_FLUSH(vector))) {
                         smp_local_flush_tlb();
-                        kstat_incr_irqs_this_cpu(irq, desc);
+                        kstat_incr_irq_this_cpu(irq);
                 } else if (unlikely(IS_RESCHEDULE(vector))) {
                         scheduler_ipi();
-                        kstat_incr_irqs_this_cpu(irq, desc);
+                        kstat_incr_irq_this_cpu(irq);
                 } else {
                         ia64_setreg(_IA64_REG_CR_TPR, vector);
                         ia64_srlz_d();
@@ -549,13 +547,12 @@ void ia64_process_pending_intr(void)
           */
         while (vector != IA64_SPURIOUS_INT_VECTOR) {
                 int irq = local_vector_to_irq(vector);
-                struct irq_desc *desc = irq_to_desc(irq);
 
                 if (unlikely(IS_LOCAL_TLB_FLUSH(vector))) {
                         smp_local_flush_tlb();
-                        kstat_incr_irqs_this_cpu(irq, desc);
+                        kstat_incr_irq_this_cpu(irq);
                 } else if (unlikely(IS_RESCHEDULE(vector))) {
-                        kstat_incr_irqs_this_cpu(irq, desc);
+                        kstat_incr_irq_this_cpu(irq);
                 } else {
                         struct pt_regs *old_regs = set_irq_regs(NULL);
 
@@ -602,7 +599,6 @@ static irqreturn_t dummy_handler (int irq, void *dev_id)
 
 static struct irqaction ipi_irqaction = {
         .handler =      handle_IPI,
-        .flags =        IRQF_DISABLED,
         .name =         "IPI"
 };
 
@@ -611,13 +607,11 @@ static struct irqaction ipi_irqaction = {
  */
 static struct irqaction resched_irqaction = {
         .handler =      dummy_handler,
-        .flags =        IRQF_DISABLED,
         .name =         "resched"
 };
 
 static struct irqaction tlb_irqaction = {
         .handler =      dummy_handler,
-        .flags =        IRQF_DISABLED,
         .name =         "tlb_flush"
 };
 
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 601502ab7141..db7b36bb068b 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -1772,38 +1772,32 @@ __setup("disable_cpe_poll", ia64_mca_disable_cpe_polling);
 
 static struct irqaction cmci_irqaction = {
         .handler =      ia64_mca_cmc_int_handler,
-        .flags =        IRQF_DISABLED,
         .name =         "cmc_hndlr"
 };
 
 static struct irqaction cmcp_irqaction = {
         .handler =      ia64_mca_cmc_int_caller,
-        .flags =        IRQF_DISABLED,
         .name =         "cmc_poll"
 };
 
 static struct irqaction mca_rdzv_irqaction = {
         .handler =      ia64_mca_rendez_int_handler,
-        .flags =        IRQF_DISABLED,
         .name =         "mca_rdzv"
 };
 
 static struct irqaction mca_wkup_irqaction = {
         .handler =      ia64_mca_wakeup_int_handler,
-        .flags =        IRQF_DISABLED,
         .name =         "mca_wkup"
 };
 
 #ifdef CONFIG_ACPI
 static struct irqaction mca_cpe_irqaction = {
         .handler =      ia64_mca_cpe_int_handler,
-        .flags =        IRQF_DISABLED,
         .name =         "cpe_hndlr"
 };
 
 static struct irqaction mca_cpep_irqaction = {
         .handler =      ia64_mca_cpe_int_caller,
-        .flags =        IRQF_DISABLED,
         .name =         "cpe_poll"
 };
 #endif /* CONFIG_ACPI */
diff --git a/arch/ia64/kernel/msi_ia64.c b/arch/ia64/kernel/msi_ia64.c
index fb2f1e622877..c430f9198d1b 100644
--- a/arch/ia64/kernel/msi_ia64.c
+++ b/arch/ia64/kernel/msi_ia64.c
@@ -17,12 +17,9 @@ static int ia64_set_msi_irq_affinity(struct irq_data *idata,
 {
         struct msi_msg msg;
         u32 addr, data;
-        int cpu = first_cpu(*cpu_mask);
+        int cpu = cpumask_first_and(cpu_mask, cpu_online_mask);
         unsigned int irq = idata->irq;
 
-        if (!cpu_online(cpu))
-                return -1;
-
         if (irq_prepare_move(irq, cpu))
                 return -1;
 
@@ -139,10 +136,7 @@ static int dmar_msi_set_affinity(struct irq_data *data,
         unsigned int irq = data->irq;
         struct irq_cfg *cfg = irq_cfg + irq;
         struct msi_msg msg;
-        int cpu = cpumask_first(mask);
-
-        if (!cpu_online(cpu))
-                return -1;
+        int cpu = cpumask_first_and(mask, cpu_online_mask);
 
         if (irq_prepare_move(irq, cpu))
                 return -1;
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index cb592773c78b..d841c4bd6864 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -6387,7 +6387,6 @@ pfm_flush_pmds(struct task_struct *task, pfm_context_t *ctx)
 
 static struct irqaction perfmon_irqaction = {
         .handler = pfm_interrupt_handler,
-        .flags   = IRQF_DISABLED,
         .name    = "perfmon"
 };
 
diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c
index fbaac1afb844..71c52bc7c28d 100644
--- a/arch/ia64/kernel/time.c
+++ b/arch/ia64/kernel/time.c
@@ -380,7 +380,7 @@ static cycle_t itc_get_cycles(struct clocksource *cs)
 
 static struct irqaction timer_irqaction = {
         .handler =      timer_interrupt,
-        .flags =        IRQF_DISABLED | IRQF_IRQPOLL,
+        .flags =        IRQF_IRQPOLL,
         .name =         "timer"
 };