set_state_oneshot_stopped() is called by the clkevt core, when the next event is required at an expiry time of 'KTIME_MAX'. This normally happens with NO_HZ_{IDLE|FULL} in both LOWRES/HIGHRES modes.
This patch makes the clockevent device to stop on such an event, to avoid spurious interrupts, as explained by: commit 8fff52fd5093 ("clockevents: Introduce CLOCK_EVT_STATE_ONESHOT_STOPPED state").
Signed-off-by: Viresh Kumar viresh.kumar@linaro.org --- drivers/clocksource/arm_global_timer.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/clocksource/arm_global_timer.c b/drivers/clocksource/arm_global_timer.c index a2cb6fae9295..801cfe5833c1 100644 --- a/drivers/clocksource/arm_global_timer.c +++ b/drivers/clocksource/arm_global_timer.c @@ -174,6 +174,7 @@ static int gt_clockevents_init(struct clock_event_device *clk) clk->set_state_shutdown = gt_clockevent_shutdown; clk->set_state_periodic = gt_clockevent_set_periodic; clk->set_state_oneshot = gt_clockevent_shutdown; + clk->set_state_oneshot_stopped = gt_clockevent_shutdown; clk->set_next_event = gt_clockevent_set_next_event; clk->cpumask = cpumask_of(cpu); clk->rating = 300;