diff --git a/drivers/staging/quatech_usb2/quatech_usb2.c b/drivers/staging/quatech_usb2/quatech_usb2.c
index 3734448..36b18e3 100644
--- a/drivers/staging/quatech_usb2/quatech_usb2.c
+++ b/drivers/staging/quatech_usb2/quatech_usb2.c
@@ -852,7 +852,7 @@
  * TIOCMGET and TIOCMSET are filtered off to their own methods before they get
  * here, so we don't have to handle them.
  */
-static int qt2_ioctl(struct tty_struct *tty, struct file *file,
+static int qt2_ioctl(struct tty_struct *tty,
 		     unsigned int cmd, unsigned long arg)
 {
 	struct usb_serial_port *port = tty->driver_data;
diff --git a/drivers/staging/serqt_usb2/serqt_usb2.c b/drivers/staging/serqt_usb2/serqt_usb2.c
index 39776c1..e0aae86 100644
--- a/drivers/staging/serqt_usb2/serqt_usb2.c
+++ b/drivers/staging/serqt_usb2/serqt_usb2.c
@@ -1191,7 +1191,7 @@
 
 }
 
-static int qt_ioctl(struct tty_struct *tty, struct file *file,
+static int qt_ioctl(struct tty_struct *tty,
 		    unsigned int cmd, unsigned long arg)
 {
 	struct usb_serial_port *port = tty->driver_data;
diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c
index 2f837e9..5cdb9d9 100644
--- a/drivers/usb/serial/ark3116.c
+++ b/drivers/usb/serial/ark3116.c
@@ -431,7 +431,7 @@
 	return 0;
 }
 
-static int ark3116_ioctl(struct tty_struct *tty, struct file *file,
+static int ark3116_ioctl(struct tty_struct *tty,
 			 unsigned int cmd, unsigned long arg)
 {
 	struct usb_serial_port *port = tty->driver_data;
diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c
index 5cbef31..d0b9fea 100644
--- a/drivers/usb/serial/ch341.c
+++ b/drivers/usb/serial/ch341.c
@@ -552,8 +552,7 @@
 	return 0;
 }
 
-/*static int ch341_ioctl(struct usb_serial_port *port, struct file *file,*/
-static int ch341_ioctl(struct tty_struct *tty, struct file *file,
+static int ch341_ioctl(struct tty_struct *tty,
 			unsigned int cmd, unsigned long arg)
 {
 	struct usb_serial_port *port = tty->driver_data;
diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c
index 2beb5a6..987e9bf 100644
--- a/drivers/usb/serial/cypress_m8.c
+++ b/drivers/usb/serial/cypress_m8.c
@@ -169,7 +169,7 @@
 			const unsigned char *buf, int count);
 static void cypress_send(struct usb_serial_port *port);
 static int  cypress_write_room(struct tty_struct *tty);
-static int  cypress_ioctl(struct tty_struct *tty, struct file *file,
+static int  cypress_ioctl(struct tty_struct *tty,
 			unsigned int cmd, unsigned long arg);
 static void cypress_set_termios(struct tty_struct *tty,
 			struct usb_serial_port *port, struct ktermios *old);
@@ -917,7 +917,7 @@
 }
 
 
-static int cypress_ioctl(struct tty_struct *tty, struct file *file,
+static int cypress_ioctl(struct tty_struct *tty,
 					unsigned int cmd, unsigned long arg)
 {
 	struct usb_serial_port *port = tty->driver_data;
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index f521ab1..e3e23a4 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -859,7 +859,7 @@
 static int  ftdi_tiocmget(struct tty_struct *tty);
 static int  ftdi_tiocmset(struct tty_struct *tty,
 			unsigned int set, unsigned int clear);
-static int  ftdi_ioctl(struct tty_struct *tty, struct file *file,
+static int  ftdi_ioctl(struct tty_struct *tty,
 			unsigned int cmd, unsigned long arg);
 static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
 
@@ -2210,7 +2210,7 @@
 	return update_mctrl(port, set, clear);
 }
 
-static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
+static int ftdi_ioctl(struct tty_struct *tty,
 					unsigned int cmd, unsigned long arg)
 {
 	struct usb_serial_port *port = tty->driver_data;
diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c
index 0b8846e..ae91bcd 100644
--- a/drivers/usb/serial/io_edgeport.c
+++ b/drivers/usb/serial/io_edgeport.c
@@ -216,7 +216,7 @@
 static void edge_set_termios(struct tty_struct *tty,
 					struct usb_serial_port *port,
 					struct ktermios *old_termios);
-static int  edge_ioctl(struct tty_struct *tty, struct file *file,
+static int  edge_ioctl(struct tty_struct *tty,
 					unsigned int cmd, unsigned long arg);
 static void edge_break(struct tty_struct *tty, int break_state);
 static int  edge_tiocmget(struct tty_struct *tty);
@@ -1679,7 +1679,7 @@
  * SerialIoctl
  *	this function handles any ioctl calls to the driver
  *****************************************************************************/
-static int edge_ioctl(struct tty_struct *tty, struct file *file,
+static int edge_ioctl(struct tty_struct *tty,
 					unsigned int cmd, unsigned long arg)
 {
 	struct usb_serial_port *port = tty->driver_data;
diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index 8812052..d843491 100644
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -2552,7 +2552,7 @@
 	return 0;
 }
 
-static int edge_ioctl(struct tty_struct *tty, struct file *file,
+static int edge_ioctl(struct tty_struct *tty,
 					unsigned int cmd, unsigned long arg)
 {
 	struct usb_serial_port *port = tty->driver_data;
diff --git a/drivers/usb/serial/kobil_sct.c b/drivers/usb/serial/kobil_sct.c
index 22cd0c0..667863e 100644
--- a/drivers/usb/serial/kobil_sct.c
+++ b/drivers/usb/serial/kobil_sct.c
@@ -75,7 +75,7 @@
 static int  kobil_write(struct tty_struct *tty, struct usb_serial_port *port,
 			 const unsigned char *buf, int count);
 static int  kobil_write_room(struct tty_struct *tty);
-static int  kobil_ioctl(struct tty_struct *tty, struct file *file,
+static int  kobil_ioctl(struct tty_struct *tty,
 			unsigned int cmd, unsigned long arg);
 static int  kobil_tiocmget(struct tty_struct *tty);
 static int  kobil_tiocmset(struct tty_struct *tty,
@@ -668,7 +668,7 @@
 		);
 }
 
-static int kobil_ioctl(struct tty_struct *tty, struct file *file,
+static int kobil_ioctl(struct tty_struct *tty,
 					unsigned int cmd, unsigned long arg)
 {
 	struct usb_serial_port *port = tty->driver_data;
diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index 95b1c64..d8b3e8f 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -1987,7 +1987,7 @@
 	return 0;
 }
 
-static int mos7720_ioctl(struct tty_struct *tty, struct file *file,
+static int mos7720_ioctl(struct tty_struct *tty,
 			 unsigned int cmd, unsigned long arg)
 {
 	struct usb_serial_port *port = tty->driver_data;
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index 9424178..7b50aa1 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -2235,7 +2235,7 @@
  *	this function handles any ioctl calls to the driver
  *****************************************************************************/
 
-static int mos7840_ioctl(struct tty_struct *tty, struct file *file,
+static int mos7840_ioctl(struct tty_struct *tty,
 			 unsigned int cmd, unsigned long arg)
 {
 	struct usb_serial_port *port = tty->driver_data;
diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c
index e305df8..8d603a1 100644
--- a/drivers/usb/serial/opticon.c
+++ b/drivers/usb/serial/opticon.c
@@ -396,7 +396,7 @@
 	return 0;
 }
 
-static int opticon_ioctl(struct tty_struct *tty, struct file *file,
+static int opticon_ioctl(struct tty_struct *tty,
 			 unsigned int cmd, unsigned long arg)
 {
 	struct usb_serial_port *port = tty->driver_data;
diff --git a/drivers/usb/serial/oti6858.c b/drivers/usb/serial/oti6858.c
index 63734cb..4c29e6c 100644
--- a/drivers/usb/serial/oti6858.c
+++ b/drivers/usb/serial/oti6858.c
@@ -135,7 +135,7 @@
 static void oti6858_set_termios(struct tty_struct *tty,
 			struct usb_serial_port *port, struct ktermios *old);
 static void oti6858_init_termios(struct tty_struct *tty);
-static int oti6858_ioctl(struct tty_struct *tty, struct file *file,
+static int oti6858_ioctl(struct tty_struct *tty,
 			unsigned int cmd, unsigned long arg);
 static void oti6858_read_int_callback(struct urb *urb);
 static void oti6858_read_bulk_callback(struct urb *urb);
@@ -728,7 +728,7 @@
 	return 0;
 }
 
-static int oti6858_ioctl(struct tty_struct *tty, struct file *file,
+static int oti6858_ioctl(struct tty_struct *tty,
 			unsigned int cmd, unsigned long arg)
 {
 	struct usb_serial_port *port = tty->driver_data;
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index b797992..30461fc 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -606,7 +606,7 @@
 	return 0;
 }
 
-static int pl2303_ioctl(struct tty_struct *tty, struct file *file,
+static int pl2303_ioctl(struct tty_struct *tty,
 			unsigned int cmd, unsigned long arg)
 {
 	struct serial_struct ser;
diff --git a/drivers/usb/serial/spcp8x5.c b/drivers/usb/serial/spcp8x5.c
index dfbc543..180ea6c 100644
--- a/drivers/usb/serial/spcp8x5.c
+++ b/drivers/usb/serial/spcp8x5.c
@@ -576,7 +576,7 @@
 	return 0;
 }
 
-static int spcp8x5_ioctl(struct tty_struct *tty, struct file *file,
+static int spcp8x5_ioctl(struct tty_struct *tty,
 			 unsigned int cmd, unsigned long arg)
 {
 	struct usb_serial_port *port = tty->driver_data;
diff --git a/drivers/usb/serial/ssu100.c b/drivers/usb/serial/ssu100.c
index abceee9..87362e4 100644
--- a/drivers/usb/serial/ssu100.c
+++ b/drivers/usb/serial/ssu100.c
@@ -439,7 +439,7 @@
 
 
 
-static int ssu100_ioctl(struct tty_struct *tty, struct file *file,
+static int ssu100_ioctl(struct tty_struct *tty,
 		    unsigned int cmd, unsigned long arg)
 {
 	struct usb_serial_port *port = tty->driver_data;
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index c7fea4a..f4a57ad 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -106,7 +106,7 @@
 static int ti_chars_in_buffer(struct tty_struct *tty);
 static void ti_throttle(struct tty_struct *tty);
 static void ti_unthrottle(struct tty_struct *tty);
-static int ti_ioctl(struct tty_struct *tty, struct file *file,
+static int ti_ioctl(struct tty_struct *tty,
 		unsigned int cmd, unsigned long arg);
 static int ti_get_icount(struct tty_struct *tty,
 		struct serial_icounter_struct *icount);
@@ -818,7 +818,7 @@
 	return 0;
 }
 
-static int ti_ioctl(struct tty_struct *tty, struct file *file,
+static int ti_ioctl(struct tty_struct *tty,
 	unsigned int cmd, unsigned long arg)
 {
 	struct usb_serial_port *port = tty->driver_data;
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index dab679e..b1110e1 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -417,7 +417,7 @@
 	/* pass on to the driver specific version of this function
 	   if it is available */
 	if (port->serial->type->ioctl) {
-		retval = port->serial->type->ioctl(tty, file, cmd, arg);
+		retval = port->serial->type->ioctl(tty, cmd, arg);
 	} else
 		retval = -ENOIOCTLCMD;
 	return retval;
diff --git a/drivers/usb/serial/usb-wwan.h b/drivers/usb/serial/usb-wwan.h
index 4d65f1c..c47b6ec 100644
--- a/drivers/usb/serial/usb-wwan.h
+++ b/drivers/usb/serial/usb-wwan.h
@@ -18,7 +18,7 @@
 extern int usb_wwan_tiocmget(struct tty_struct *tty);
 extern int usb_wwan_tiocmset(struct tty_struct *tty,
 			     unsigned int set, unsigned int clear);
-extern int usb_wwan_ioctl(struct tty_struct *tty, struct file *file,
+extern int usb_wwan_ioctl(struct tty_struct *tty,
 			  unsigned int cmd, unsigned long arg);
 extern int usb_wwan_send_setup(struct usb_serial_port *port);
 extern int usb_wwan_write(struct tty_struct *tty, struct usb_serial_port *port,
diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c
index b729120..b38d77b 100644
--- a/drivers/usb/serial/usb_wwan.c
+++ b/drivers/usb/serial/usb_wwan.c
@@ -178,7 +178,7 @@
 	return retval;
 }
 
-int usb_wwan_ioctl(struct tty_struct *tty, struct file *file,
+int usb_wwan_ioctl(struct tty_struct *tty,
 		   unsigned int cmd, unsigned long arg)
 {
 	struct usb_serial_port *port = tty->driver_data;
diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c
index 6e0c397..5b073bc 100644
--- a/drivers/usb/serial/whiteheat.c
+++ b/drivers/usb/serial/whiteheat.c
@@ -152,7 +152,7 @@
 			struct usb_serial_port *port,
 			const unsigned char *buf, int count);
 static int  whiteheat_write_room(struct tty_struct *tty);
-static int  whiteheat_ioctl(struct tty_struct *tty, struct file *file,
+static int  whiteheat_ioctl(struct tty_struct *tty,
 			unsigned int cmd, unsigned long arg);
 static void whiteheat_set_termios(struct tty_struct *tty,
 			struct usb_serial_port *port, struct ktermios *old);
@@ -874,7 +874,7 @@
 }
 
 
-static int whiteheat_ioctl(struct tty_struct *tty, struct file *file,
+static int whiteheat_ioctl(struct tty_struct *tty,
 					unsigned int cmd, unsigned long arg)
 {
 	struct usb_serial_port *port = tty->driver_data;
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index c1aa1b2..00e98ee 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -260,7 +260,7 @@
 			const unsigned char *buf, int count);
 	/* Called only by the tty layer */
 	int  (*write_room)(struct tty_struct *tty);
-	int  (*ioctl)(struct tty_struct *tty, struct file *file,
+	int  (*ioctl)(struct tty_struct *tty,
 		      unsigned int cmd, unsigned long arg);
 	void (*set_termios)(struct tty_struct *tty,
 			struct usb_serial_port *port, struct ktermios *old);