ac_dereference
for (aca = ac_dereference(idev->ac_list, idev); aca;
aca = ac_dereference(aca->aca_next, idev)) {
for (aca = ac_dereference(idev->ac_list, idev); aca;
aca = ac_dereference(aca->aca_next, idev)) {
while ((aca = ac_dereference(idev->ac_list, idev)) != NULL) {