135 	unsigned char flip[IN_BUFFER_SIZE] __aligned(32);  member
346 	port->readp = port->flip;  in initialize_port()
347 	port->writep = port->flip;  in initialize_port()
456 	port->readp = port->writep = port->flip;  in sync_serial_open()
647 			  start - port->flip, end - port->flip,  in __sync_serial_read()
654 		avail = port->flip + port->in_buffer_size - start;  in __sync_serial_read()
677 	if (port->readp >= port->flip + port->in_buffer_size)  in __sync_serial_read()
678 		port->readp = port->flip;  in __sync_serial_read()
1304 	port->writep = port->flip;  in start_dma_in()
1454 	     port->flip + port->in_buffer_size) &&  in handle_rx_packet()
1460 		if (port->writep >= port->flip + port->in_buffer_size)  in handle_rx_packet()
1461 			port->writep = port->flip;  in handle_rx_packet()
1565 			if (port->writep >= port->flip + port->in_buffer_size)  in manual_interrupt()
1566 				port->writep = port->flip;  in manual_interrupt()
1571 				if (port->readp >= port->flip +  in manual_interrupt()
1573 					port->readp = port->flip;  in manual_interrupt()