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-rw-r--r--tools/lib/perf/mmap.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/lib/perf/mmap.c b/tools/lib/perf/mmap.c
index c1a51d925e0e..ec124eb0ec0a 100644
--- a/tools/lib/perf/mmap.c
+++ b/tools/lib/perf/mmap.c
@@ -508,7 +508,7 @@ int perf_mmap__read_self(struct perf_mmap *map, struct perf_counts_values *count
idx = READ_ONCE(pc->index);
cnt = READ_ONCE(pc->offset);
if (pc->cap_user_rdpmc && idx) {
- s64 evcnt = read_perf_counter(idx - 1);
+ u64 evcnt = read_perf_counter(idx - 1);
u16 width = READ_ONCE(pc->pmc_width);
evcnt <<= 64 - width;