diff options
Diffstat (limited to 'tools/perf/util/pmu.c')
| -rw-r--r-- | tools/perf/util/pmu.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index adef23b1352e..bf34468a99cb 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -602,14 +602,13 @@ static void pmu_format_value(unsigned long *format, __u64 value, __u64 *v, static __u64 pmu_format_max_value(const unsigned long *format) { - int w; + __u64 w = 0; + int fbit; - w = bitmap_weight(format, PERF_PMU_FORMAT_BITS); - if (!w) - return 0; - if (w < 64) - return (1ULL << w) - 1; - return -1; + for_each_set_bit(fbit, format, PERF_PMU_FORMAT_BITS) + w |= (1ULL << fbit); + + return w; } /* |