63 static bool use_bpf;  variable
1811 	if (!use_bpf)  in print_footer_stdio()
1833 	if (use_bpf)  in print_footer_csv()
1842 	if (use_bpf) {  in print_footer_csv()
1876 		total += use_bpf ? st->nr_contended : 1;  in print_contention_result()
1892 			total += use_bpf ? st->nr_contended : 1;  in print_contention_result()
1990 	if (show_lock_owner && !use_bpf) {  in check_lock_contention_options()
2053 	session = perf_session__new(use_bpf ? NULL : &data, &eops);  in __cmd_contention()
2072 	if (use_bpf) {  in __cmd_contention()
2139 	if (use_bpf) {  in __cmd_contention()
2529 	OPT_BOOLEAN('b', "use-bpf", &use_bpf, "use BPF program to collect lock contention stats"),  in cmd_lock()