1 files changed, 17 insertions, 9 deletions

diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c
index 24630fd8ef60..a95dea5459c4 100644
--- a/arch/mips/kernel/smtc.c
+++ b/arch/mips/kernel/smtc.c
@@ -25,6 +25,8 @@
 #include <linux/interrupt.h>
 #include <linux/kernel_stat.h>
 #include <linux/module.h>
+#include <linux/ftrace.h>
+#include <linux/slab.h>
 
 #include <asm/cpu.h>
 #include <asm/processor.h>
@@ -180,7 +182,7 @@ static int vpemask[2][8] = {
         {0, 0, 0, 0, 0, 0, 0, 1}
 };
 int tcnoprog[NR_CPUS];
-static atomic_t idle_hook_initialized = {0};
+static atomic_t idle_hook_initialized = ATOMIC_INIT(0);
 static int clock_hang_reported[NR_CPUS];
 
 #endif /* CONFIG_SMTC_IDLE_HOOK_DEBUG */
@@ -939,23 +941,29 @@ static void ipi_call_interrupt(void)
 
 DECLARE_PER_CPU(struct clock_event_device, mips_clockevent_device);
 
-void ipi_decode(struct smtc_ipi *pipi)
+static void __irq_entry smtc_clock_tick_interrupt(void)
 {
         unsigned int cpu = smp_processor_id();
         struct clock_event_device *cd;
+        int irq = MIPS_CPU_IRQ_BASE + 1;
+
+        irq_enter();
+        kstat_incr_irqs_this_cpu(irq, irq_to_desc(irq));
+        cd = &per_cpu(mips_clockevent_device, cpu);
+        cd->event_handler(cd);
+        irq_exit();
+}
+
+void ipi_decode(struct smtc_ipi *pipi)
+{
         void *arg_copy = pipi->arg;
         int type_copy = pipi->type;
-        int irq = MIPS_CPU_IRQ_BASE + 1;
 
         smtc_ipi_nq(&freeIPIq, pipi);
 
         switch (type_copy) {
         case SMTC_CLOCK_TICK:
-                irq_enter();
-                kstat_incr_irqs_this_cpu(irq, irq_to_desc(irq));
-                cd = &per_cpu(mips_clockevent_device, cpu);
-                cd->event_handler(cd);
-                irq_exit();
+                smtc_clock_tick_interrupt();
                 break;
 
         case LINUX_SMP_IPI:
@@ -1331,7 +1339,7 @@ void smtc_get_new_mmu_context(struct mm_struct *mm, unsigned long cpu)
                 if (!((asid += ASID_INC) & ASID_MASK) ) {
                         if (cpu_has_vtag_icache)
                                 flush_icache_all();
-                        /* Traverse all online CPUs (hack requires contigous range) */
+                        /* Traverse all online CPUs (hack requires contiguous range) */
                         for_each_online_cpu(i) {
                                 /*
                                  * We don't need to worry about our own CPU, nor those of