1519 		unsigned char lsr = serial_in(p, UART_LSR);  in __stop_tx()  local
1520 		p->lsr_saved_flags |= lsr & LSR_SAVE_FLAGS;  in __stop_tx()
1528 		if ((lsr & BOTH_EMPTY) != BOTH_EMPTY)  in __stop_tx()
1562 			unsigned char lsr;  in __start_tx()  local
1564 			lsr = serial_in(up, UART_LSR);  in __start_tx()
1565 			up->lsr_saved_flags |= lsr & LSR_SAVE_FLAGS;  in __start_tx()
1566 			if (lsr & UART_LSR_THRE)  in __start_tx()
1715 void serial8250_read_char(struct uart_8250_port *up, unsigned char lsr)  in serial8250_read_char()  argument
1721 	if (likely(lsr & UART_LSR_DR))  in serial8250_read_char()
1735 	lsr |= up->lsr_saved_flags;  in serial8250_read_char()
1738 	if (unlikely(lsr & UART_LSR_BRK_ERROR_BITS)) {  in serial8250_read_char()
1739 		if (lsr & UART_LSR_BI) {  in serial8250_read_char()
1740 			lsr &= ~(UART_LSR_FE | UART_LSR_PE);  in serial8250_read_char()
1750 		} else if (lsr & UART_LSR_PE)  in serial8250_read_char()
1752 		else if (lsr & UART_LSR_FE)  in serial8250_read_char()
1754 		if (lsr & UART_LSR_OE)  in serial8250_read_char()
1760 		lsr &= port->read_status_mask;  in serial8250_read_char()
1762 		if (lsr & UART_LSR_BI) {  in serial8250_read_char()
1765 		} else if (lsr & UART_LSR_PE)  in serial8250_read_char()
1767 		else if (lsr & UART_LSR_FE)  in serial8250_read_char()
1773 	uart_insert_char(port, lsr, UART_LSR_OE, ch, flag);  in serial8250_read_char()
1782 unsigned char serial8250_rx_chars(struct uart_8250_port *up, unsigned char lsr)  in serial8250_rx_chars()  argument
1788 		serial8250_read_char(up, lsr);  in serial8250_rx_chars()
1791 		lsr = serial_in(up, UART_LSR);  in serial8250_rx_chars()
1792 	} while (lsr & (UART_LSR_DR | UART_LSR_BI));  in serial8250_rx_chars()
1795 	return lsr;  in serial8250_rx_chars()
1995 	unsigned int lsr;  in serial8250_tx_empty()  local
2001 		lsr = serial_port_in(port, UART_LSR);  in serial8250_tx_empty()
2002 		up->lsr_saved_flags |= lsr & LSR_SAVE_FLAGS;  in serial8250_tx_empty()
2004 		if ((lsr & BOTH_EMPTY) == BOTH_EMPTY)  in serial8250_tx_empty()
2122 	unsigned char lsr;  in serial8250_get_poll_char()  local
2127 	lsr = serial_port_in(port, UART_LSR);  in serial8250_get_poll_char()
2129 	if (!(lsr & UART_LSR_DR)) {  in serial8250_get_poll_char()
2178 	unsigned char lsr, iir;  in serial8250_do_startup()  local
2386 	lsr = serial_port_in(port, UART_LSR);  in serial8250_do_startup()
2390 	if (lsr & UART_LSR_TEMT && iir & UART_IIR_NO_INT) {  in serial8250_do_startup()