1323 			unsigned char lsr;  in serial8250_start_tx()  local
1324 			lsr = serial_in(up, UART_LSR);  in serial8250_start_tx()
1325 			up->lsr_saved_flags |= lsr & LSR_SAVE_FLAGS;  in serial8250_start_tx()
1326 			if (lsr & UART_LSR_THRE)  in serial8250_start_tx()
1397 serial8250_rx_chars(struct uart_8250_port *up, unsigned char lsr)  in serial8250_rx_chars()  argument
1405 		if (likely(lsr & UART_LSR_DR))  in serial8250_rx_chars()
1420 		lsr |= up->lsr_saved_flags;  in serial8250_rx_chars()
1423 		if (unlikely(lsr & UART_LSR_BRK_ERROR_BITS)) {  in serial8250_rx_chars()
1424 			if (lsr & UART_LSR_BI) {  in serial8250_rx_chars()
1425 				lsr &= ~(UART_LSR_FE | UART_LSR_PE);  in serial8250_rx_chars()
1435 			} else if (lsr & UART_LSR_PE)  in serial8250_rx_chars()
1437 			else if (lsr & UART_LSR_FE)  in serial8250_rx_chars()
1439 			if (lsr & UART_LSR_OE)  in serial8250_rx_chars()
1445 			lsr &= port->read_status_mask;  in serial8250_rx_chars()
1447 			if (lsr & UART_LSR_BI) {  in serial8250_rx_chars()
1450 			} else if (lsr & UART_LSR_PE)  in serial8250_rx_chars()
1452 			else if (lsr & UART_LSR_FE)  in serial8250_rx_chars()
1458 		uart_insert_char(port, lsr, UART_LSR_OE, ch, flag);  in serial8250_rx_chars()
1461 		lsr = serial_in(up, UART_LSR);  in serial8250_rx_chars()
1462 	} while ((lsr & (UART_LSR_DR | UART_LSR_BI)) && (--max_count > 0));  in serial8250_rx_chars()
1466 	return lsr;  in serial8250_rx_chars()
1626 	unsigned int lsr;  in serial8250_tx_empty()  local
1631 	lsr = serial_port_in(port, UART_LSR);  in serial8250_tx_empty()
1632 	up->lsr_saved_flags |= lsr & LSR_SAVE_FLAGS;  in serial8250_tx_empty()
1637 	return (lsr & BOTH_EMPTY) == BOTH_EMPTY ? TIOCSER_TEMT : 0;  in serial8250_tx_empty()
1751 	unsigned char lsr;  in serial8250_get_poll_char()  local
1756 	lsr = serial_port_in(port, UART_LSR);  in serial8250_get_poll_char()
1758 	if (!(lsr & UART_LSR_DR)) {  in serial8250_get_poll_char()
1807 	unsigned char lsr, iir;  in serial8250_do_startup()  local
1983 	lsr = serial_port_in(port, UART_LSR);  in serial8250_do_startup()
1987 	if (lsr & UART_LSR_TEMT && iir & UART_IIR_NO_INT) {  in serial8250_do_startup()