check_filter
if (check_filter(temp_int, demux_dev, 0))
if (check_filter(temp_int, demux_dev, 1))
if (!check_filter(&tun->txflt, skb)) {
.check_filter = hisi_l3c_pmu_check_filter,
if (hisi_pmu->ops->check_filter && hisi_pmu->ops->check_filter(event))
int (*check_filter)(struct perf_event *event);
.check_filter = hisi_uc_pmu_check_filter,