tty_ioctl: drag screaming into compliance with the coding style

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 180 insertions, 182 deletions

diff --git a/drivers/char/tty_ioctl.c b/drivers/char/tty_ioctl.c
index d4b6d64e858b..f95a80b2265f 100644
--- a/drivers/char/tty_ioctl.c
+++ b/drivers/char/tty_ioctl.c
@@ -50,11 +50,11 @@
  *      Locking: none
  */
 
-void tty_wait_until_sent(struct tty_struct * tty, long timeout)
+void tty_wait_until_sent(struct tty_struct *tty, long timeout)
 {
 #ifdef TTY_DEBUG_WAIT_UNTIL_SENT
         char buf[64];
-        
+
         printk(KERN_DEBUG "%s wait until sent...\n", tty_name(tty, buf));
 #endif
         if (!tty->driver->chars_in_buffer)
@@ -67,7 +67,6 @@ void tty_wait_until_sent(struct tty_struct * tty, long timeout)
         if (tty->driver->wait_until_sent)
                 tty->driver->wait_until_sent(tty, timeout);
 }
-
 EXPORT_SYMBOL(tty_wait_until_sent);
 
 static void unset_locked_termios(struct ktermios *termios,
@@ -75,8 +74,8 @@ static void unset_locked_termios(struct ktermios *termios,
                                  struct ktermios *locked)
 {
         int     i;
-        
-#define NOSET_MASK(x,y,z) (x = ((x) & ~(z)) | ((y) & (z)))
+
+#define NOSET_MASK(x, y, z) (x = ((x) & ~(z)) | ((y) & (z)))
 
         if (!locked) {
                 printk(KERN_WARNING "Warning?!? termios_locked is NULL.\n");
@@ -88,7 +87,7 @@ static void unset_locked_termios(struct ktermios *termios,
         NOSET_MASK(termios->c_cflag, old->c_cflag, locked->c_cflag);
         NOSET_MASK(termios->c_lflag, old->c_lflag, locked->c_lflag);
         termios->c_line = locked->c_line ? old->c_line : termios->c_line;
-        for (i=0; i < NCCS; i++)
+        for (i = 0; i < NCCS; i++)
                 termios->c_cc[i] = locked->c_cc[i] ?
                         old->c_cc[i] : termios->c_cc[i];
         /* FIXME: What should we do for i/ospeed */
@@ -163,7 +162,6 @@ speed_t tty_termios_baud_rate(struct ktermios *termios)
         }
         return baud_table[cbaud];
 }
-
 EXPORT_SYMBOL(tty_termios_baud_rate);
 
 /**
@@ -203,7 +201,6 @@ speed_t tty_termios_input_baud_rate(struct ktermios *termios)
         return tty_termios_baud_rate(termios);
 #endif
 }
-
 EXPORT_SYMBOL(tty_termios_input_baud_rate);
 
 /**
@@ -338,7 +335,6 @@ speed_t tty_get_baud_rate(struct tty_struct *tty)
 
         return baud;
 }
-
 EXPORT_SYMBOL(tty_get_baud_rate);
 
 /**
@@ -361,7 +357,6 @@ void tty_termios_copy_hw(struct ktermios *new, struct ktermios *old)
         new->c_ispeed = old->c_ispeed;
         new->c_ospeed = old->c_ospeed;
 }
-
 EXPORT_SYMBOL(tty_termios_copy_hw);
 
 /**
@@ -395,16 +390,16 @@ EXPORT_SYMBOL(tty_termios_hw_change);
  *      Locking: termios_sem
  */
 
-static void change_termios(struct tty_struct * tty, struct ktermios * new_termios)
+static void change_termios(struct tty_struct *tty, struct ktermios *new_termios)
 {
         int canon_change;
         struct ktermios old_termios = *tty->termios;
         struct tty_ldisc *ld;
-        
+
         /*
          *      Perform the actual termios internal changes under lock.
          */
-         
+
 
         /* FIXME: we need to decide on some locking/ordering semantics
            for the set_termios notification eventually */
@@ -419,7 +414,7 @@ static void change_termios(struct tty_struct * tty, struct ktermios * new_termio
                 tty->canon_data = 0;
                 tty->erasing = 0;
         }
-        
+
         /* This bit should be in the ldisc code */
         if (canon_change && !L_ICANON(tty) && tty->read_cnt)
                 /* Get characters left over from canonical mode. */
@@ -442,7 +437,7 @@ static void change_termios(struct tty_struct * tty, struct ktermios * new_termio
                         wake_up_interruptible(&tty->link->read_wait);
                 }
         }
-           
+
         if (tty->driver->set_termios)
                 (*tty->driver->set_termios)(tty, &old_termios);
         else
@@ -470,7 +465,7 @@ static void change_termios(struct tty_struct * tty, struct ktermios * new_termio
  *              Called functions take ldisc and termios_sem locks
  */
 
-static int set_termios(struct tty_struct * tty, void __user *arg, int opt)
+static int set_termios(struct tty_struct *tty, void __user *arg, int opt)
 {
         struct ktermios tmp_termios;
         struct tty_ldisc *ld;
@@ -501,19 +496,19 @@ static int set_termios(struct tty_struct * tty, void __user *arg, int opt)
                 return -EFAULT;
 #endif
 
-        /* If old style Bfoo values are used then load c_ispeed/c_ospeed with the real speed
-           so its unconditionally usable */
+        /* If old style Bfoo values are used then load c_ispeed/c_ospeed
+         * with the real speed so its unconditionally usable */
         tmp_termios.c_ispeed = tty_termios_input_baud_rate(&tmp_termios);
         tmp_termios.c_ospeed = tty_termios_baud_rate(&tmp_termios);
 
         ld = tty_ldisc_ref(tty);
-        
+
         if (ld != NULL) {
                 if ((opt & TERMIOS_FLUSH) && ld->flush_buffer)
                         ld->flush_buffer(tty);
                 tty_ldisc_deref(ld);
         }
-        
+
         if (opt & TERMIOS_WAIT) {
                 tty_wait_until_sent(tty, 0);
                 if (signal_pending(current))
@@ -529,14 +524,14 @@ static int set_termios(struct tty_struct * tty, void __user *arg, int opt)
         return 0;
 }
 
-static int get_termio(struct tty_struct * tty, struct termio __user * termio)
+static int get_termio(struct tty_struct *tty, struct termio __user *termio)
 {
         if (kernel_termios_to_user_termio(termio, tty->termios))
                 return -EFAULT;
         return 0;
 }
 
-static unsigned long inq_canon(struct tty_struct * tty)
+static unsigned long inq_canon(struct tty_struct *tty)
 {
         int nr, head, tail;
 
@@ -561,7 +556,7 @@ static unsigned long inq_canon(struct tty_struct * tty)
  *
  * The "sg_flags" translation is a joke..
  */
-static int get_sgflags(struct tty_struct * tty)
+static int get_sgflags(struct tty_struct *tty)
 {
         int flags = 0;
 
@@ -579,7 +574,7 @@ static int get_sgflags(struct tty_struct * tty)
         return flags;
 }
 
-static int get_sgttyb(struct tty_struct * tty, struct sgttyb __user * sgttyb)
+static int get_sgttyb(struct tty_struct *tty, struct sgttyb __user *sgttyb)
 {
         struct sgttyb tmp;
 
@@ -590,11 +585,11 @@ static int get_sgttyb(struct tty_struct * tty, struct sgttyb __user * sgttyb)
         tmp.sg_kill = tty->termios->c_cc[VKILL];
         tmp.sg_flags = get_sgflags(tty);
         mutex_unlock(&tty->termios_mutex);
-        
+
         return copy_to_user(sgttyb, &tmp, sizeof(tmp)) ? -EFAULT : 0;
 }
 
-static void set_sgflags(struct ktermios * termios, int flags)
+static void set_sgflags(struct ktermios *termios, int flags)
 {
         termios->c_iflag = ICRNL | IXON;
         termios->c_oflag = 0;
@@ -631,7 +626,7 @@ static void set_sgflags(struct ktermios * termios, int flags)
  *      Locking: termios_sem
  */
 
-static int set_sgttyb(struct tty_struct * tty, struct sgttyb __user * sgttyb)
+static int set_sgttyb(struct tty_struct *tty, struct sgttyb __user *sgttyb)
 {
         int retval;
         struct sgttyb tmp;
@@ -640,7 +635,7 @@ static int set_sgttyb(struct tty_struct * tty, struct sgttyb __user * sgttyb)
         retval = tty_check_change(tty);
         if (retval)
                 return retval;
-        
+
         if (copy_from_user(&tmp, sgttyb, sizeof(tmp)))
                 return -EFAULT;
 
@@ -651,7 +646,8 @@ static int set_sgttyb(struct tty_struct * tty, struct sgttyb __user * sgttyb)
         set_sgflags(&termios, tmp.sg_flags);
         /* Try and encode into Bfoo format */
 #ifdef BOTHER
-        tty_termios_encode_baud_rate(&termios, termios.c_ispeed, termios.c_ospeed);
+        tty_termios_encode_baud_rate(&termios, termios.c_ispeed,
+                                                termios.c_ospeed);
 #endif
         mutex_unlock(&tty->termios_mutex);
         change_termios(tty, &termios);
@@ -660,7 +656,7 @@ static int set_sgttyb(struct tty_struct * tty, struct sgttyb __user * sgttyb)
 #endif
 
 #ifdef TIOCGETC
-static int get_tchars(struct tty_struct * tty, struct tchars __user * tchars)
+static int get_tchars(struct tty_struct *tty, struct tchars __user *tchars)
 {
         struct tchars tmp;
 
@@ -673,7 +669,7 @@ static int get_tchars(struct tty_struct * tty, struct tchars __user * tchars)
         return copy_to_user(tchars, &tmp, sizeof(tmp)) ? -EFAULT : 0;
 }
 
-static int set_tchars(struct tty_struct * tty, struct tchars __user * tchars)
+static int set_tchars(struct tty_struct *tty, struct tchars __user *tchars)
 {
         struct tchars tmp;
 
@@ -690,20 +686,22 @@ static int set_tchars(struct tty_struct * tty, struct tchars __user * tchars)
 #endif
 
 #ifdef TIOCGLTC
-static int get_ltchars(struct tty_struct * tty, struct ltchars __user * ltchars)
+static int get_ltchars(struct tty_struct *tty, struct ltchars __user *ltchars)
 {
         struct ltchars tmp;
 
         tmp.t_suspc = tty->termios->c_cc[VSUSP];
-        tmp.t_dsuspc = tty->termios->c_cc[VSUSP];       /* what is dsuspc anyway? */
+        /* what is dsuspc anyway? */
+        tmp.t_dsuspc = tty->termios->c_cc[VSUSP];
         tmp.t_rprntc = tty->termios->c_cc[VREPRINT];
-        tmp.t_flushc = tty->termios->c_cc[VEOL2];       /* what is flushc anyway? */
+        /* what is flushc anyway? */
+        tmp.t_flushc = tty->termios->c_cc[VEOL2];
         tmp.t_werasc = tty->termios->c_cc[VWERASE];
         tmp.t_lnextc = tty->termios->c_cc[VLNEXT];
         return copy_to_user(ltchars, &tmp, sizeof(tmp)) ? -EFAULT : 0;
 }
 
-static int set_ltchars(struct tty_struct * tty, struct ltchars __user * ltchars)
+static int set_ltchars(struct tty_struct *tty, struct ltchars __user *ltchars)
 {
         struct ltchars tmp;
 
@@ -711,9 +709,11 @@ static int set_ltchars(struct tty_struct * tty, struct ltchars __user * ltchars)
                 return -EFAULT;
 
         tty->termios->c_cc[VSUSP] = tmp.t_suspc;
-        tty->termios->c_cc[VEOL2] = tmp.t_dsuspc;       /* what is dsuspc anyway? */
+        /* what is dsuspc anyway? */
+        tty->termios->c_cc[VEOL2] = tmp.t_dsuspc;
         tty->termios->c_cc[VREPRINT] = tmp.t_rprntc;
-        tty->termios->c_cc[VEOL2] = tmp.t_flushc;       /* what is flushc anyway? */
+        /* what is flushc anyway? */
+        tty->termios->c_cc[VEOL2] = tmp.t_flushc;
         tty->termios->c_cc[VWERASE] = tmp.t_werasc;
         tty->termios->c_cc[VLNEXT] = tmp.t_lnextc;
         return 0;
@@ -761,10 +761,10 @@ static int send_prio_char(struct tty_struct *tty, char ch)
  *      consistent mode setting.
  */
 
-int tty_mode_ioctl(struct tty_struct * tty, struct file *file,
+int tty_mode_ioctl(struct tty_struct *tty, struct file *file,
                         unsigned int cmd, unsigned long arg)
 {
-        struct tty_struct * real_tty;
+        struct tty_struct *real_tty;
         void __user *p = (void __user *)arg;
 
         if (tty->driver->type == TTY_DRIVER_TYPE_PTY &&
@@ -775,100 +775,100 @@ int tty_mode_ioctl(struct tty_struct * tty, struct file *file,
 
         switch (cmd) {
 #ifdef TIOCGETP
-                case TIOCGETP:
-                        return get_sgttyb(real_tty, (struct sgttyb __user *) arg);
-                case TIOCSETP:
-                case TIOCSETN:
-                        return set_sgttyb(real_tty, (struct sgttyb __user *) arg);
+        case TIOCGETP:
+                return get_sgttyb(real_tty, (struct sgttyb __user *) arg);
+        case TIOCSETP:
+        case TIOCSETN:
+                return set_sgttyb(real_tty, (struct sgttyb __user *) arg);
 #endif
 #ifdef TIOCGETC
-                case TIOCGETC:
-                        return get_tchars(real_tty, p);
-                case TIOCSETC:
-                        return set_tchars(real_tty, p);
+        case TIOCGETC:
+                return get_tchars(real_tty, p);
+        case TIOCSETC:
+                return set_tchars(real_tty, p);
 #endif
 #ifdef TIOCGLTC
-                case TIOCGLTC:
-                        return get_ltchars(real_tty, p);
-                case TIOCSLTC:
-                        return set_ltchars(real_tty, p);
+        case TIOCGLTC:
+                return get_ltchars(real_tty, p);
+        case TIOCSLTC:
+                return set_ltchars(real_tty, p);
 #endif
-                case TCSETSF:
-                        return set_termios(real_tty, p,  TERMIOS_FLUSH | TERMIOS_WAIT | TERMIOS_OLD);
-                case TCSETSW:
-                        return set_termios(real_tty, p, TERMIOS_WAIT | TERMIOS_OLD);
-                case TCSETS:
-                        return set_termios(real_tty, p, TERMIOS_OLD);
+        case TCSETSF:
+                return set_termios(real_tty, p,  TERMIOS_FLUSH | TERMIOS_WAIT | TERMIOS_OLD);
+        case TCSETSW:
+                return set_termios(real_tty, p, TERMIOS_WAIT | TERMIOS_OLD);
+        case TCSETS:
+                return set_termios(real_tty, p, TERMIOS_OLD);
 #ifndef TCGETS2
-                case TCGETS:
-                        if (kernel_termios_to_user_termios((struct termios __user *)arg, real_tty->termios))
-                                return -EFAULT;
-                        return 0;
+        case TCGETS:
+                if (kernel_termios_to_user_termios((struct termios __user *)arg, real_tty->termios))
+                        return -EFAULT;
+                return 0;
 #else
-                case TCGETS:
-                        if (kernel_termios_to_user_termios_1((struct termios __user *)arg, real_tty->termios))
-                                return -EFAULT;
-                        return 0;
-                case TCGETS2:
-                        if (kernel_termios_to_user_termios((struct termios2 __user *)arg, real_tty->termios))
-                                return -EFAULT;
-                        return 0;
-                case TCSETSF2:
-                        return set_termios(real_tty, p,  TERMIOS_FLUSH | TERMIOS_WAIT);
-                case TCSETSW2:
-                        return set_termios(real_tty, p, TERMIOS_WAIT);
-                case TCSETS2:
-                        return set_termios(real_tty, p, 0);
+        case TCGETS:
+                if (kernel_termios_to_user_termios_1((struct termios __user *)arg, real_tty->termios))
+                        return -EFAULT;
+                return 0;
+        case TCGETS2:
+                if (kernel_termios_to_user_termios((struct termios2 __user *)arg, real_tty->termios))
+                        return -EFAULT;
+                return 0;
+        case TCSETSF2:
+                return set_termios(real_tty, p,  TERMIOS_FLUSH | TERMIOS_WAIT);
+        case TCSETSW2:
+                return set_termios(real_tty, p, TERMIOS_WAIT);
+        case TCSETS2:
+                return set_termios(real_tty, p, 0);
 #endif
-                case TCGETA:
-                        return get_termio(real_tty, p);
-                case TCSETAF:
-                        return set_termios(real_tty, p, TERMIOS_FLUSH | TERMIOS_WAIT | TERMIOS_TERMIO);
-                case TCSETAW:
-                        return set_termios(real_tty, p, TERMIOS_WAIT | TERMIOS_TERMIO);
-                case TCSETA:
-                        return set_termios(real_tty, p, TERMIOS_TERMIO);
+        case TCGETA:
+                return get_termio(real_tty, p);
+        case TCSETAF:
+                return set_termios(real_tty, p, TERMIOS_FLUSH | TERMIOS_WAIT | TERMIOS_TERMIO);
+        case TCSETAW:
+                return set_termios(real_tty, p, TERMIOS_WAIT | TERMIOS_TERMIO);
+        case TCSETA:
+                return set_termios(real_tty, p, TERMIOS_TERMIO);
 #ifndef TCGETS2
-                case TIOCGLCKTRMIOS:
-                        if (kernel_termios_to_user_termios((struct termios __user *)arg, real_tty->termios_locked))
-                                return -EFAULT;
-                        return 0;
-
-                case TIOCSLCKTRMIOS:
-                        if (!capable(CAP_SYS_ADMIN))
-                                return -EPERM;
-                        if (user_termios_to_kernel_termios(real_tty->termios_locked, (struct termios __user *) arg))
-                                return -EFAULT;
-                        return 0;
+        case TIOCGLCKTRMIOS:
+                if (kernel_termios_to_user_termios((struct termios __user *)arg, real_tty->termios_locked))
+                        return -EFAULT;
+                return 0;
+        case TIOCSLCKTRMIOS:
+                if (!capable(CAP_SYS_ADMIN))
+                        return -EPERM;
+                if (user_termios_to_kernel_termios(real_tty->termios_locked,
+                                               (struct termios __user *) arg))
+                        return -EFAULT;
+                return 0;
 #else
-                case TIOCGLCKTRMIOS:
-                        if (kernel_termios_to_user_termios_1((struct termios __user *)arg, real_tty->termios_locked))
-                                return -EFAULT;
-                        return 0;
-
-                case TIOCSLCKTRMIOS:
-                        if (!capable(CAP_SYS_ADMIN))
-                                return -EPERM;
-                        if (user_termios_to_kernel_termios_1(real_tty->termios_locked, (struct termios __user *) arg))
-                                return -EFAULT;
+        case TIOCGLCKTRMIOS:
+                if (kernel_termios_to_user_termios_1((struct termios __user *)arg, real_tty->termios_locked))
+                        return -EFAULT;
+                return 0;
+        case TIOCSLCKTRMIOS:
+                if (!capable(CAP_SYS_ADMIN))
+                        return -EPERM;
+                if (user_termios_to_kernel_termios_1(real_tty->termios_locked,
+                                               (struct termios __user *) arg))
+                        return -EFAULT;
                         return 0;
 #endif
-                case TIOCGSOFTCAR:
-                        return put_user(C_CLOCAL(tty) ? 1 : 0, (int __user *)arg);
-                case TIOCSSOFTCAR:
-                        if (get_user(arg, (unsigned int __user *) arg))
-                                return -EFAULT;
-                        mutex_lock(&tty->termios_mutex);
-                        tty->termios->c_cflag =
-                                ((tty->termios->c_cflag & ~CLOCAL) |
-                                 (arg ? CLOCAL : 0));
-                        mutex_unlock(&tty->termios_mutex);
-                        return 0;
-                default:
-                        return -ENOIOCTLCMD;
+        case TIOCGSOFTCAR:
+                return put_user(C_CLOCAL(tty) ? 1 : 0,
+                                                (int __user *)arg);
+        case TIOCSSOFTCAR:
+                if (get_user(arg, (unsigned int __user *) arg))
+                        return -EFAULT;
+                mutex_lock(&tty->termios_mutex);
+                tty->termios->c_cflag =
+                        ((tty->termios->c_cflag & ~CLOCAL) |
+                         (arg ? CLOCAL : 0));
+                mutex_unlock(&tty->termios_mutex);
+                return 0;
+        default:
+                return -ENOIOCTLCMD;
         }
 }
-
 EXPORT_SYMBOL_GPL(tty_mode_ioctl);
 
 int tty_perform_flush(struct tty_struct *tty, unsigned long arg)
@@ -899,13 +899,12 @@ int tty_perform_flush(struct tty_struct *tty, unsigned long arg)
         tty_ldisc_deref(ld);
         return 0;
 }
-
 EXPORT_SYMBOL_GPL(tty_perform_flush);
 
-int n_tty_ioctl(struct tty_struct * tty, struct file * file,
+int n_tty_ioctl(struct tty_struct *tty, struct file *file,
                        unsigned int cmd, unsigned long arg)
 {
-        struct tty_struct * real_tty;
+        struct tty_struct *real_tty;
         int retval;
 
         if (tty->driver->type == TTY_DRIVER_TYPE_PTY &&
@@ -915,68 +914,67 @@ int n_tty_ioctl(struct tty_struct * tty, struct file * file,
                 real_tty = tty;
 
         switch (cmd) {
-                case TCXONC:
-                        retval = tty_check_change(tty);
-                        if (retval)
-                                return retval;
-                        switch (arg) {
-                        case TCOOFF:
-                                if (!tty->flow_stopped) {
-                                        tty->flow_stopped = 1;
-                                        stop_tty(tty);
-                                }
-                                break;
-                        case TCOON:
-                                if (tty->flow_stopped) {
-                                        tty->flow_stopped = 0;
-                                        start_tty(tty);
-                                }
-                                break;
-                        case TCIOFF:
-                                if (STOP_CHAR(tty) != __DISABLED_CHAR)
-                                        return send_prio_char(tty, STOP_CHAR(tty));
-                                break;
-                        case TCION:
-                                if (START_CHAR(tty) != __DISABLED_CHAR)
-                                        return send_prio_char(tty, START_CHAR(tty));
-                                break;
-                        default:
-                                return -EINVAL;
+        case TCXONC:
+                retval = tty_check_change(tty);
+                if (retval)
+                        return retval;
+                switch (arg) {
+                case TCOOFF:
+                        if (!tty->flow_stopped) {
+                                tty->flow_stopped = 1;
+                                stop_tty(tty);
                         }
-                        return 0;
-                case TCFLSH:
-                        return tty_perform_flush(tty, arg);
-                case TIOCOUTQ:
-                        return put_user(tty->driver->chars_in_buffer ?
-                                        tty->driver->chars_in_buffer(tty) : 0,
-                                        (int __user *) arg);
-                case TIOCINQ:
-                        retval = tty->read_cnt;
-                        if (L_ICANON(tty))
-                                retval = inq_canon(tty);
-                        return put_user(retval, (unsigned int __user *) arg);
-                case TIOCPKT:
-                {
-                        int pktmode;
-
-                        if (tty->driver->type != TTY_DRIVER_TYPE_PTY ||
-                            tty->driver->subtype != PTY_TYPE_MASTER)
-                                return -ENOTTY;
-                        if (get_user(pktmode, (int __user *) arg))
-                                return -EFAULT;
-                        if (pktmode) {
-                                if (!tty->packet) {
-                                        tty->packet = 1;
-                                        tty->link->ctrl_status = 0;
-                                }
-                        } else
-                                tty->packet = 0;
-                        return 0;
-                }
+                        break;
+                case TCOON:
+                        if (tty->flow_stopped) {
+                                tty->flow_stopped = 0;
+                                start_tty(tty);
+                        }
+                        break;
+                case TCIOFF:
+                        if (STOP_CHAR(tty) != __DISABLED_CHAR)
+                                return send_prio_char(tty, STOP_CHAR(tty));
+                        break;
+                case TCION:
+                        if (START_CHAR(tty) != __DISABLED_CHAR)
+                                return send_prio_char(tty, START_CHAR(tty));
+                        break;
                 default:
-                        /* Try the mode commands */
-                        return tty_mode_ioctl(tty, file, cmd, arg);
+                        return -EINVAL;
                 }
+                return 0;
+        case TCFLSH:
+                return tty_perform_flush(tty, arg);
+        case TIOCOUTQ:
+                return put_user(tty->driver->chars_in_buffer ?
+                                tty->driver->chars_in_buffer(tty) : 0,
+                                (int __user *) arg);
+        case TIOCINQ:
+                retval = tty->read_cnt;
+                if (L_ICANON(tty))
+                        retval = inq_canon(tty);
+                return put_user(retval, (unsigned int __user *) arg);
+        case TIOCPKT:
+        {
+                int pktmode;
+
+                if (tty->driver->type != TTY_DRIVER_TYPE_PTY ||
+                    tty->driver->subtype != PTY_TYPE_MASTER)
+                        return -ENOTTY;
+                if (get_user(pktmode, (int __user *) arg))
+                        return -EFAULT;
+                if (pktmode) {
+                        if (!tty->packet) {
+                                tty->packet = 1;
+                                tty->link->ctrl_status = 0;
+                        }
+                } else
+                        tty->packet = 0;
+                return 0;
+        }
+        default:
+                /* Try the mode commands */
+                return tty_mode_ioctl(tty, file, cmd, arg);
+        }
 }
-
 EXPORT_SYMBOL(n_tty_ioctl);