perf_pmus__pmu_for_pmu_filter
const struct perf_pmu *pmu = perf_pmus__pmu_for_pmu_filter(cputype);
pmu = perf_pmus__pmu_for_pmu_filter(str);
const struct perf_pmu *perf_pmus__pmu_for_pmu_filter(const char *str);