[PATCH v2 33/48] libperf: Allow NULL in perf_cpu_map__idx
flat view
STALE1746d
SUPERSEDED
From: Ian Rogers <irogers@google.com>
Date: 2021-12-23 07:48:38
Also in:
linux-perf-users, lkml
Subsystem:
performance events subsystem, the rest · Maintainers:
Peter Zijlstra, Ingo Molnar, Arnaldo Carvalho de Melo, Namhyung Kim, Linus Torvalds
Revision v2 of 3 in this series.
Revisions (3)
- v2 current
- v3 [diff vs current]
- v4 [diff vs current]
Return -1, not found, if NULL is passed. Signed-off-by: Ian Rogers <irogers@google.com> --- tools/lib/perf/cpumap.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/tools/lib/perf/cpumap.c b/tools/lib/perf/cpumap.c
index 3c36a06771af..eacea3ab965a 100644
--- a/tools/lib/perf/cpumap.c
+++ b/tools/lib/perf/cpumap.c@@ -270,8 +270,13 @@ bool perf_cpu_map__empty(const struct perf_cpu_map *map) int perf_cpu_map__idx(const struct perf_cpu_map *cpus, int cpu) { - int low = 0, high = cpus->nr; + int low, high; + if (!cpus) + return -1; + + low = 0; + high = cpus->nr; while (low < high) { int idx = (low + high) / 2, cpu_at_idx = cpus->map[idx];
--
2.34.1.307.g9b7440fafd-goog
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel