1334 				    const char *str, int unset)  in opt_list_avail_functions()  argument
1340 	if (unset || !str)  in opt_list_avail_functions()
1366 			     int unset __maybe_unused)  in parse_filter_func()
1392 			     const char *str, int unset)  in parse_buffer_size()  argument
1404 	if (unset) {  in parse_buffer_size()
1423 				  const char *str, int unset)  in parse_func_tracer_opts()  argument
1433 	if (unset)  in parse_func_tracer_opts()
1444 				  const char *str, int unset)  in parse_graph_tracer_opts()  argument
1458 	if (unset)  in parse_graph_tracer_opts()
1468 static int parse_sort_key(const struct option *opt, const char *str, int unset)  in parse_sort_key()  argument
1472 	if (unset)  in parse_sort_key()