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Subject[RFC PATCH v1 02/37] libperf cpumap: improve max function
Date
From commit 7074674e7338863e ("perf cpumap: Maintain cpumaps ordered and
without dups"), perf_cpu_map elements are sorted in ascending order.

This patch improves the perf_cpu_map__max function by returning the last
element.

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
---
tools/lib/perf/cpumap.c | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/tools/lib/perf/cpumap.c b/tools/lib/perf/cpumap.c
index fb633272be3aaed9..80e03b2f0c60cce7 100644
--- a/tools/lib/perf/cpumap.c
+++ b/tools/lib/perf/cpumap.c
@@ -284,14 +284,10 @@ int perf_cpu_map__idx(struct perf_cpu_map *cpus, int cpu)

int perf_cpu_map__max(struct perf_cpu_map *map)
{
- int i, max = -1;
-
- for (i = 0; i < map->nr; i++) {
- if (map->map[i] > max)
- max = map->map[i];
- }
-
- return max;
+ if (map->nr > 0)
+ return map->map[map->nr-1];
+ else
+ return -1;
}

/*
--
2.31.1
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