1 files changed, 14 insertions, 0 deletions

diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index eb4af016ac65..5a9ff243588c 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -365,6 +365,20 @@ void __init tick_nohz_init(void)
                 return;
         }
 
+        /*
+         * Full dynticks uses irq work to drive the tick rescheduling on safe
+         * locking contexts. But then we need irq work to raise its own
+         * interrupts to avoid circular dependency on the tick
+         */
+        if (!arch_irq_work_has_interrupt()) {
+                pr_warning("NO_HZ: Can't run full dynticks because arch doesn't "
+                           "support irq work self-IPIs\n");
+                cpumask_clear(tick_nohz_full_mask);
+                cpumask_copy(housekeeping_mask, cpu_possible_mask);
+                tick_nohz_full_running = false;
+                return;
+        }
+
         cpu = smp_processor_id();
 
         if (cpumask_test_cpu(cpu, tick_nohz_full_mask)) {