delete_filter_func  523 tools/perf/builtin-ftrace.c 	delete_filter_func(&ftrace.filters);
delete_filter_func  524 tools/perf/builtin-ftrace.c 	delete_filter_func(&ftrace.notrace);
delete_filter_func  525 tools/perf/builtin-ftrace.c 	delete_filter_func(&ftrace.graph_funcs);
delete_filter_func  526 tools/perf/builtin-ftrace.c 	delete_filter_func(&ftrace.nograph_funcs);