diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
index 5ed2cfa7da1d..824d1c7e3e53 100644
--- a/drivers/bluetooth/hci_ldisc.c
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -790,7 +790,7 @@ static int hci_uart_tty_ioctl(struct tty_struct *tty, struct file *file,
 		break;
 
 	default:
-		err = n_tty_ioctl_helper(tty, file, cmd, arg);
+		err = n_tty_ioctl_helper(tty, cmd, arg);
 		break;
 	}
 
diff --git a/drivers/net/ppp/ppp_async.c b/drivers/net/ppp/ppp_async.c
index 6492523fc234..f4429b93a9c8 100644
--- a/drivers/net/ppp/ppp_async.c
+++ b/drivers/net/ppp/ppp_async.c
@@ -310,7 +310,7 @@ ppp_asynctty_ioctl(struct tty_struct *tty, struct file *file,
 		/* flush our buffers and the serial port's buffer */
 		if (arg == TCIOFLUSH || arg == TCOFLUSH)
 			ppp_async_flush_output(ap);
-		err = n_tty_ioctl_helper(tty, file, cmd, arg);
+		err = n_tty_ioctl_helper(tty, cmd, arg);
 		break;
 
 	case FIONREAD:
diff --git a/drivers/net/ppp/ppp_synctty.c b/drivers/net/ppp/ppp_synctty.c
index ebbfea0e1140..b3a71b409a80 100644
--- a/drivers/net/ppp/ppp_synctty.c
+++ b/drivers/net/ppp/ppp_synctty.c
@@ -303,7 +303,7 @@ ppp_synctty_ioctl(struct tty_struct *tty, struct file *file,
 		/* flush our buffers and the serial port's buffer */
 		if (arg == TCIOFLUSH || arg == TCOFLUSH)
 			ppp_sync_flush_output(ap);
-		err = n_tty_ioctl_helper(tty, file, cmd, arg);
+		err = n_tty_ioctl_helper(tty, cmd, arg);
 		break;
 
 	case FIONREAD:
diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index 157b51ce9cc0..c98a04595084 100644
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -2712,7 +2712,7 @@ static int gsmld_ioctl(struct tty_struct *tty, struct file *file,
 		base = mux_num_to_base(gsm);
 		return put_user(base + 1, (__u32 __user *)arg);
 	default:
-		return n_tty_ioctl_helper(tty, file, cmd, arg);
+		return n_tty_ioctl_helper(tty, cmd, arg);
 	}
 }
 
diff --git a/drivers/tty/n_hdlc.c b/drivers/tty/n_hdlc.c
index 580a37b3fe1b..7e0884ecc74f 100644
--- a/drivers/tty/n_hdlc.c
+++ b/drivers/tty/n_hdlc.c
@@ -630,7 +630,7 @@ static int n_hdlc_tty_ioctl(struct tty_struct *tty, struct file *file,
 		fallthrough;	/* to default */
 
 	default:
-		error = n_tty_ioctl_helper(tty, file, cmd, arg);
+		error = n_tty_ioctl_helper(tty, cmd, arg);
 		break;
 	}
 	return error;
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 797af5d46cbe..5be6d02dc690 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -2418,7 +2418,7 @@ static int n_tty_ioctl(struct tty_struct *tty, struct file *file,
 		up_write(&tty->termios_rwsem);
 		return put_user(retval, (unsigned int __user *) arg);
 	default:
-		return n_tty_ioctl_helper(tty, file, cmd, arg);
+		return n_tty_ioctl_helper(tty, cmd, arg);
 	}
 }
 
diff --git a/drivers/tty/tty_ioctl.c b/drivers/tty/tty_ioctl.c
index 99a29d72d294..63181925ec1a 100644
--- a/drivers/tty/tty_ioctl.c
+++ b/drivers/tty/tty_ioctl.c
@@ -854,8 +854,8 @@ int tty_perform_flush(struct tty_struct *tty, unsigned long arg)
 }
 EXPORT_SYMBOL_GPL(tty_perform_flush);
 
-int n_tty_ioctl_helper(struct tty_struct *tty, struct file *file,
-		       unsigned int cmd, unsigned long arg)
+int n_tty_ioctl_helper(struct tty_struct *tty, unsigned int cmd,
+		unsigned long arg)
 {
 	int retval;
 
diff --git a/include/linux/tty.h b/include/linux/tty.h
index 5e73f577c2b4..5dbd7c5afac7 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -407,8 +407,8 @@ static inline int tty_audit_push(void)
 #endif
 
 /* tty_ioctl.c */
-int n_tty_ioctl_helper(struct tty_struct *tty, struct file *file,
-		unsigned int cmd, unsigned long arg);
+int n_tty_ioctl_helper(struct tty_struct *tty, unsigned int cmd,
+		unsigned long arg);
 
 /* vt.c */
 
diff --git a/net/nfc/nci/uart.c b/net/nfc/nci/uart.c
index 502e7a3f8948..9bdd9a7d187e 100644
--- a/net/nfc/nci/uart.c
+++ b/net/nfc/nci/uart.c
@@ -349,7 +349,7 @@ static int nci_uart_tty_ioctl(struct tty_struct *tty, struct file *file,
 			return -EBUSY;
 		break;
 	default:
-		err = n_tty_ioctl_helper(tty, file, cmd, arg);
+		err = n_tty_ioctl_helper(tty, cmd, arg);
 		break;
 	}