Lines Matching refs:tail
1626 int xmit_count, tail, head;
1648 tail = state->xmit.tail;
1649 start = (char *)&state->xmit.buf[tail];
1652 xmit_count = (head < tail) ? (UART_XMIT_SIZE - tail) : (head - tail);
1660 tail += result;
1661 tail &= UART_XMIT_SIZE - 1;
1662 state->xmit.tail = tail;
1663 start = (char *)&state->xmit.buf[tail];