BUF_STATE_EMPTY
bh->state != BUF_STATE_EMPTY || common->usb_amount_left > 0;
if (bh2->state == BUF_STATE_EMPTY &&
bh->state = BUF_STATE_EMPTY;
bh->state = BUF_STATE_EMPTY;
bh->state = BUF_STATE_EMPTY;
smp_store_release(&bh->state, BUF_STATE_EMPTY);
bh->state = BUF_STATE_EMPTY;
BUF_STATE_EMPTY);
BUF_STATE_EMPTY);
if (bh->state == BUF_STATE_EMPTY && get_some_more) {
if (bh->state == BUF_STATE_EMPTY && !get_some_more)
bh->state = BUF_STATE_EMPTY;