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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-01-17 17:09:28 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-01-18 13:24:58 +0100 |
| commit | 1855b796f2f672cbb25400be2d3171c26fc869a3 (patch) | |
| tree | 2ff7c9b38b3b6b7325767c3ce751503401665efc | |
| parent | perf probe: Fix ppc64 'perf probe add events failed' case (diff) | |
| download | linux-1855b796f2f672cbb25400be2d3171c26fc869a3.tar.xz linux-1855b796f2f672cbb25400be2d3171c26fc869a3.zip | |
perf affinity: Allow passing a NULL arg to affinity__cleanup()
Just like with free(), NULL is checked to avoid having all callers do
it.
Its convenient for when not using affinity setup/cleanup for dummy CPU
maps, i.e. CPU maps for pid targets.
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20220117160931.1191712-2-acme@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/util/affinity.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/tools/perf/util/affinity.c b/tools/perf/util/affinity.c index f1e30d566db3..4d216c0dc425 100644 --- a/tools/perf/util/affinity.c +++ b/tools/perf/util/affinity.c @@ -62,7 +62,7 @@ void affinity__set(struct affinity *a, int cpu) clear_bit(cpu, a->sched_cpus); } -void affinity__cleanup(struct affinity *a) +static void __affinity__cleanup(struct affinity *a) { int cpu_set_size = get_cpu_set_size(); @@ -71,3 +71,9 @@ void affinity__cleanup(struct affinity *a) zfree(&a->sched_cpus); zfree(&a->orig_cpus); } + +void affinity__cleanup(struct affinity *a) +{ + if (a != NULL) + __affinity__cleanup(a); +} |