From: Kan Liang Date: Tue, 20 May 2025 18:16:39 +0000 (-0700) Subject: arc/perf: Remove driver-specific throttle support X-Git-Tag: v6.16-rc1~196^2~8 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=a33d4d5325cce88ecea81c2468d85fa3fe720ab8;p=thirdparty%2Flinux.git arc/perf: Remove driver-specific throttle support The throttle support has been added in the generic code. Remove the driver-specific throttle support. Besides the throttle, perf_event_overflow may return true because of event_limit. It already does an inatomic event disable. The pmu->stop is not required either. Signed-off-by: Kan Liang Signed-off-by: Peter Zijlstra (Intel) Acked-by: Vineet Gupta Link: https://lore.kernel.org/r/20250520181644.2673067-12-kan.liang@linux.intel.com --- diff --git a/arch/arc/kernel/perf_event.c b/arch/arc/kernel/perf_event.c index 6e5a651cd75cf..ed6d4f0cd6216 100644 --- a/arch/arc/kernel/perf_event.c +++ b/arch/arc/kernel/perf_event.c @@ -599,10 +599,8 @@ static irqreturn_t arc_pmu_intr(int irq, void *dev) arc_perf_event_update(event, &event->hw, event->hw.idx); perf_sample_data_init(&data, 0, hwc->last_period); - if (arc_pmu_event_set_period(event)) { - if (perf_event_overflow(event, &data, regs)) - arc_pmu_stop(event, 0); - } + if (arc_pmu_event_set_period(event)) + perf_event_overflow(event, &data, regs); active_ints &= ~BIT(idx); } while (active_ints);