On Thu, Oct 19, 2017 at 07:05:17PM +0800, Shaokun Zhang wrote:
> This patch adds support HiSilicon SoC uncore PMU driver framework and
> interfaces.
> +static bool hisi_validate_event_group(struct perf_event *event)
> +{
> + struct perf_event *sibling, *leader = event->group_leader;
> + struct hisi_pmu *hisi_pmu = to_hisi_pmu(event->pmu);
> + /* Include count for the event */
> + int counters = 1;
> +
> + /*
> + * We must NOT create groups containing mixed PMUs, although
> + * software events are acceptable
> + */
> + if (leader->pmu != event->pmu && !is_software_event(leader))
> + return false;
> +
> + /* Increment counter for the leader */
> + counters++;
Sorry I didn't spot this before, but I believe this should be:
if (event != leader && !is_software_event(leader))
counters++;
Since the leader can be a SW event, and for the group leader itself,
event == leader.
Assuming there aren't any major issues elsewhere, I can fix this up when
applying the series.
Thanks,
Mark.
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