diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c
index 04da6d6..a35dd54 100644
--- a/drivers/char/synclink_gt.c
+++ b/drivers/char/synclink_gt.c
@@ -154,7 +154,7 @@
 static void tx_hold(struct tty_struct *tty);
 static void tx_release(struct tty_struct *tty);
 
-static int  ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg);
+static int  ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg);
 static int  chars_in_buffer(struct tty_struct *tty);
 static void throttle(struct tty_struct * tty);
 static void unthrottle(struct tty_struct * tty);
@@ -1030,13 +1030,12 @@
  * Arguments
  *
  * 	tty	pointer to tty instance data
- * 	file	pointer to associated file object for device
  * 	cmd	IOCTL command code
  * 	arg	command argument/context
  *
  * Return 0 if success, otherwise error code
  */
-static int ioctl(struct tty_struct *tty, struct file *file,
+static int ioctl(struct tty_struct *tty,
 		 unsigned int cmd, unsigned long arg)
 {
 	struct slgt_info *info = tty->driver_data;
@@ -1200,7 +1199,7 @@
 	return 0;
 }
 
-static long slgt_compat_ioctl(struct tty_struct *tty, struct file *file,
+static long slgt_compat_ioctl(struct tty_struct *tty,
 			 unsigned int cmd, unsigned long arg)
 {
 	struct slgt_info *info = tty->driver_data;
@@ -1239,7 +1238,7 @@
 	case MGSL_IOCSIF:
 	case MGSL_IOCSXSYNC:
 	case MGSL_IOCSXCTRL:
-		rc = ioctl(tty, file, cmd, arg);
+		rc = ioctl(tty, cmd, arg);
 		break;
 	}