aggr_cpu_id__die
id = aggr_cpu_id__die(cpu, data);
return aggr_cpu_id__die(cpu, /*data=*/NULL);
return aggr_cpu_id__die;
id = aggr_cpu_id__die(cpu, NULL);
id = aggr_cpu_id__die(cpu, data);
struct aggr_cpu_id aggr_cpu_id__die(struct perf_cpu cpu, void *data);