FUN_SERV_DISABLED
if (test_bit(FUN_SERV_DISABLED, &fd->service_flags))
set_bit(FUN_SERV_DISABLED, &fd->service_flags);
clear_bit(FUN_SERV_DISABLED, &fd->service_flags);
if (!test_bit(FUN_SERV_DISABLED, &fd->service_flags))
fdev->service_flags = FUN_SERV_DISABLED;