strcasestr 510 scripts/kconfig/nconf.c if (strcasestr(str, match_str) != NULL) strcasestr 841 tools/lib/subcmd/parse-options.c if (opt->help && strcasestr(opt->help, arg) != NULL) strcasestr 330 tools/perf/tests/builtin-test.c if (strcasestr(test->desc, argv[i])) strcasestr 212 tools/perf/util/metricgroup.c m = strcasestr(n, list);