extproc           267 drivers/tty/pty.c 		int extproc = (old_termios->c_lflag & EXTPROC) | L_EXTPROC(tty);
extproc           274 drivers/tty/pty.c 		if ((old_flow != new_flow) || extproc) {
extproc           283 drivers/tty/pty.c 			if (extproc)