RP2_DUMMY_READ    391 drivers/tty/serial/rp2.c 	port->ignore_status_mask = (new->c_cflag & CREAD) ? 0 : RP2_DUMMY_READ;
RP2_DUMMY_READ    405 drivers/tty/serial/rp2.c 		u32 byte = readw(up->base + RP2_DATA_BYTE) | RP2_DUMMY_READ;