rpm_tx_active     683 drivers/tty/serial/8250/8250_port.c 	rpm_active = xchg(&p->rpm_tx_active, 1);
rpm_tx_active     697 drivers/tty/serial/8250/8250_port.c 	rpm_active = xchg(&p->rpm_tx_active, 0);
rpm_tx_active     108 include/linux/serial_8250.h 	unsigned int		rpm_tx_active;