hwtracing: hisi_ptt: Keep to advertise PERF_PMU_CAP_EXCLUSIVE

driver inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I7F2F2
CVE: NA

--------------------------------

Keep to advertise PERF_PMU_CAP_EXCLUSIVE. Such pmus can only have one
event scheduled at a time, and the perf tool will report device busy.
Signed-off-by: NJunhao He <hejunhao3@huawei.com>

drivers/hwtracing/ptt/hisi_ptt.c

@@ -1215,7 +1215,7 @@ static int hisi_ptt_register_pmu(struct hisi_ptt *hisi_ptt)
 
 	hisi_ptt->hisi_ptt_pmu = (struct pmu) {
 		.module		= THIS_MODULE,
-		.capabilities	= PERF_PMU_CAP_NO_EXCLUDE,
+		.capabilities	= PERF_PMU_CAP_NO_EXCLUDE | PERF_PMU_CAP_EXCLUSIVE,
 		.task_ctx_nr	= perf_sw_context,
 		.attr_groups	= hisi_ptt_pmu_groups,
 		.event_init	= hisi_ptt_pmu_event_init,