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authorArnaldo Carvalho de Melo <acme@redhat.com>2022-01-17 13:09:28 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2022-01-18 09:24:58 -0300
commit1855b796f2f672cbb25400be2d3171c26fc869a3 (patch)
tree2ff7c9b38b3b6b7325767c3ce751503401665efc
parent4624f199327a704dd1069aca1c3cadb8f2a28c6f (diff)
downloadlinux-1855b796f2f672cbb25400be2d3171c26fc869a3.tar.gz
linux-1855b796f2f672cbb25400be2d3171c26fc869a3.tar.xz
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.c8
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);
+}