static void n_tty_receive_char_closing(struct tty_struct *tty, unsigned char c)
{
	if (I_ISTRIP(tty))
		c &= 0x7f;
	if (I_IUCLC(tty) && L_IEXTEN(tty))
		c = tolower(c);

	if (I_IXON(tty)) {
		if (c == STOP_CHAR(tty))
			stop_tty(tty);
		else if (c == START_CHAR(tty) ||
			 (tty->stopped && !tty->flow_stopped && I_IXANY(tty) &&
			  c != INTR_CHAR(tty) && c != QUIT_CHAR(tty) &&
			  c != SUSP_CHAR(tty))) {
			start_tty(tty);
			process_echoes(tty);
		}
	}
}
Unknown