On 5/16/25 11:28, kan.liang@linux.intel.com wrote:
> From: Kan Liang <kan.liang@linux.intel.com>
>
> 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 <kan.liang@linux.intel.com>
> Cc: Vineet Gupta <vgupta@ikernel.org>
> Cc: linux-snps-arc@lists.infradead.org
Acked-by: Vineet Gupta <vgupta@kernel.org>
Please let me know if you wane to take it via ARC tree.
Thx,
-Vineet
> ---
> arch/arc/kernel/perf_event.c | 6 ++----
> 1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/arch/arc/kernel/perf_event.c b/arch/arc/kernel/perf_event.c
> index 6e5a651cd75c..ed6d4f0cd621 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);