serial8250_get_baud_rate 2570 drivers/tty/serial/8250/8250_port.c 	baud = serial8250_get_baud_rate(port, termios, old);
serial8250_get_baud_rate 3131 drivers/tty/serial/8250/8250_port.c 	baud = serial8250_get_baud_rate(port, &termios, NULL);