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-rw-r--r--tools/perf/util/data-convert-json.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/perf/util/data-convert-json.c b/tools/perf/util/data-convert-json.c
index 5bb3c2ba95ca..09d57efd2d9d 100644
--- a/tools/perf/util/data-convert-json.c
+++ b/tools/perf/util/data-convert-json.c
@@ -284,7 +284,9 @@ static void output_headers(struct perf_session *session, struct convert_json *c)
output_json_key_string(out, true, 2, "os-release", header->env.os_release);
output_json_key_string(out, true, 2, "arch", header->env.arch);
- output_json_key_string(out, true, 2, "cpu-desc", header->env.cpu_desc);
+ if (header->env.cpu_desc)
+ output_json_key_string(out, true, 2, "cpu-desc", header->env.cpu_desc);
+
output_json_key_string(out, true, 2, "cpuid", header->env.cpuid);
output_json_key_format(out, true, 2, "nrcpus-online", "%u", header->env.nr_cpus_online);
output_json_key_format(out, true, 2, "nrcpus-avail", "%u", header->env.nr_cpus_avail);