38 	int	i, hlen = st->param.history_len;  in wf_pid_run()  local
45 		for (i = 0; i < hlen; i++) {  in wf_pid_run()
52 		st->index = (st->index + 1) % hlen;  in wf_pid_run()
58 	for (i = 0, integ = 0; i < hlen; i++)  in wf_pid_run()
59 		integ += st->errors[(st->index + hlen - i) % hlen];  in wf_pid_run()
64 		st->errors[(st->index + hlen - 1) % hlen];  in wf_pid_run()
93 	int	i, hlen = st->param.history_len;  in wf_cpu_pid_run()  local
100 		for (i = 0; i < hlen; i++) {  in wf_cpu_pid_run()
108 		st->index = (st->index + 1) % hlen;  in wf_cpu_pid_run()
116 	for (i = 0, integ = 0; i < hlen; i++)  in wf_cpu_pid_run()
117 		integ += st->errors[(st->index + hlen - i) % hlen];  in wf_cpu_pid_run()