Lines Matching defs:tail
356 u16 tail;
364 /* cache head and tail of queue */
366 tail = ch->ch_r_tail & RQUEUEMASK;
373 qleft = tail - head - 1;
416 tail = (tail + 1) & RQUEUEMASK;
417 ch->ch_r_tail = tail;
451 u16 tail;
476 /* cache tail of queue */
477 tail = circ->tail & (UART_XMIT_SIZE - 1);
484 writeb(circ->buf[tail], &ch->ch_cls_uart->txrx);
485 tail = (tail + 1) & (UART_XMIT_SIZE - 1);
491 /* Update the final tail */
492 circ->tail = tail & (UART_XMIT_SIZE - 1);