The function cpu__max_cpu returns the possible number of CPUs as defined
in the sysfs and can be used as an alternative for MAX_NR_CPUS in
zero_per_pkg and check_per_pkg.

Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Ingo Molnar <mi...@redhat.com>
Cc: Arnaldo Carvalho de Melo <a...@kernel.org>
Cc: Alexander Shishkin <alexander.shish...@linux.intel.com>
Cc: Jiri Olsa <jo...@redhat.com>
Cc: Namhyung Kim <namhy...@kernel.org>
Cc: linux-kernel@vger.kernel.org
Cc: Russ Anderson <russ.ander...@hpe.com>
Signed-off-by: Kyle Meyer <kyle.me...@hpe.com>
---
 tools/perf/util/stat.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
index 0cbfd1eca1dd..b754686b684d 100644
--- a/tools/perf/util/stat.c
+++ b/tools/perf/util/stat.c
@@ -209,7 +209,7 @@ void perf_evlist__reset_stats(struct evlist *evlist)
 static void zero_per_pkg(struct evsel *counter)
 {
        if (counter->per_pkg_mask)
-               memset(counter->per_pkg_mask, 0, MAX_NR_CPUS);
+               memset(counter->per_pkg_mask, 0, cpu__max_cpu());
 }
 
 static int check_per_pkg(struct evsel *counter,
@@ -228,7 +228,7 @@ static int check_per_pkg(struct evsel *counter,
                return 0;
 
        if (!mask) {
-               mask = zalloc(MAX_NR_CPUS);
+               mask = zalloc(cpu__max_cpu());
                if (!mask)
                        return -ENOMEM;
 
-- 
2.12.3

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