1 files changed, 4 insertions, 35 deletions

diff --git a/arch/arm64/kernel/irq.c b/arch/arm64/kernel/irq.c
index 0f08dfd69ebc..071a6ec13bd8 100644
--- a/arch/arm64/kernel/irq.c
+++ b/arch/arm64/kernel/irq.c
@@ -40,33 +40,6 @@ int arch_show_interrupts(struct seq_file *p, int prec)
         return 0;
 }
 
-/*
- * handle_IRQ handles all hardware IRQ's.  Decoded IRQs should
- * not come via this function.  Instead, they should provide their
- * own 'handler'.  Used by platform code implementing C-based 1st
- * level decoding.
- */
-void handle_IRQ(unsigned int irq, struct pt_regs *regs)
-{
-        struct pt_regs *old_regs = set_irq_regs(regs);
-
-        irq_enter();
-
-        /*
-         * Some hardware gives randomly wrong interrupts.  Rather
-         * than crashing, do something sensible.
-         */
-        if (unlikely(irq >= nr_irqs)) {
-                pr_warn_ratelimited("Bad IRQ%u\n", irq);
-                ack_bad_irq(irq);
-        } else {
-                generic_handle_irq(irq);
-        }
-
-        irq_exit();
-        set_irq_regs(old_regs);
-}
-
 void __init set_handle_irq(void (*handle_irq)(struct pt_regs *))
 {
         if (handle_arch_irq)
@@ -97,19 +70,15 @@ static bool migrate_one_irq(struct irq_desc *desc)
         if (irqd_is_per_cpu(d) || !cpumask_test_cpu(smp_processor_id(), affinity))
                 return false;
 
-        if (cpumask_any_and(affinity, cpu_online_mask) >= nr_cpu_ids)
+        if (cpumask_any_and(affinity, cpu_online_mask) >= nr_cpu_ids) {
+                affinity = cpu_online_mask;
                 ret = true;
+        }
 
-        /*
-         * when using forced irq_set_affinity we must ensure that the cpu
-         * being offlined is not present in the affinity mask, it may be
-         * selected as the target CPU otherwise
-         */
-        affinity = cpu_online_mask;
         c = irq_data_get_irq_chip(d);
         if (!c->irq_set_affinity)
                 pr_debug("IRQ%u: unable to set affinity\n", d->irq);
-        else if (c->irq_set_affinity(d, affinity, true) == IRQ_SET_MASK_OK && ret)
+        else if (c->irq_set_affinity(d, affinity, false) == IRQ_SET_MASK_OK && ret)
                 cpumask_copy(d->affinity, affinity);
 
         return ret;