O_OPOST           738 drivers/tty/n_tty.c 			if (O_OPOST(tty)) {
O_OPOST          2331 drivers/tty/n_tty.c 		if (O_OPOST(tty)) {
O_OPOST           509 drivers/tty/tty_ioctl.c 	if (O_OPOST(tty))