From patchwork series 501501

https://patchwork.ozlabs.org//project/linuxppc-dev/list/?series=501501

Author: Fox Snowpatch

tools/perf/util/pmu.c

@@ -2117,7 +2117,7 @@ static char *format_alias(char *buf, int len, const struct perf_pmu *pmu,
 						   skip_duplicate_pmus);
 
 	/* Paramemterized events have the parameters shown. */
-	if (strstr(alias->terms, "=?")) {
+	if (!strstr(alias->terms, "=?")) {
 		/* No parameters. */
 		snprintf(buf, len, "%.*s/%s/", (int)pmu_name_len, pmu->name, alias->name);
 		return buf;
@@ -2129,15 +2129,19 @@ static char *format_alias(char *buf, int len, const struct perf_pmu *pmu,
 		pr_err("Failure to parse '%s' terms '%s': %d\n",
 			alias->name, alias->terms, ret);
 		parse_events_terms__exit(&terms);
-		snprintf(buf, len, "%.*s/%s/", (int)pmu_name_len, pmu->name, alias->name);
+		scnprintf(buf, len, "%.*s/%s/", (int)pmu_name_len, pmu->name, alias->name);
 		return buf;
 	}
-	used = snprintf(buf, len, "%.*s/%s", (int)pmu_name_len, pmu->name, alias->name);
+	used = scnprintf(buf, len, "%.*s/%s", (int)pmu_name_len, pmu->name, alias->name);
 
 	list_for_each_entry(term, &terms.terms, list) {
+		const char *name = term->config;
+
+		if (!name)
+			name = parse_events__term_type_str(term->type_term);
 		if (term->type_val == PARSE_EVENTS__TERM_TYPE_STR)
-			used += snprintf(buf + used, sub_non_neg(len, used),
-					",%s=%s", term->config,
+			used += scnprintf(buf + used, sub_non_neg(len, used),
+					",%s=%s", name,
 					term->val.str);
 	}
 	parse_events_terms__exit(&terms);