176 static inline struct tty_struct *file_tty(struct file *file)  in file_tty()  function
680 	if (redirect && file_tty(redirect) == tty) {  in __tty_hangup()
1062 	struct tty_struct *tty = file_tty(file);  in tty_read()
1236 	struct tty_struct *tty = file_tty(file);  in tty_write()
1772 	struct tty_struct *tty = file_tty(filp);  in tty_release()
2199 	struct tty_struct *tty = file_tty(filp);  in tty_poll()
2215 	struct tty_struct *tty = file_tty(filp);  in __tty_fasync()
2258 	struct tty_struct *tty = file_tty(filp);  in tty_fasync()
2850 	struct tty_struct *tty = file_tty(file);  in tty_ioctl()
3000 	struct tty_struct *tty = file_tty(file);  in tty_compat_ioctl()
3028 	return file_tty(file) != t ? 0 : fd + 1;  in this_tty()