__start_tx       1560 drivers/tty/serial/8250/8250_port.c 	__start_tx(port);
__start_tx       1574 drivers/tty/serial/8250/8250_port.c 		__start_tx(&p->port);
__start_tx       1595 drivers/tty/serial/8250/8250_port.c 		__start_tx(port);