mISDN_STACK_STOPPED
if (unlikely(test_bit(mISDN_STACK_STOPPED, &st->status))) {
if (unlikely(test_bit(mISDN_STACK_STOPPED,
test_and_set_bit(mISDN_STACK_STOPPED, &st->status);
test_and_clear_bit(mISDN_STACK_STOPPED, &st->status);
if (test_bit(mISDN_STACK_STOPPED, &st->status)) {
if (likely(!test_bit(mISDN_STACK_STOPPED, &st->status))) {