USB: add SPDX identifiers to all remaining files in drivers/usb/

It's good to have SPDX identifiers in all files to make it easier to
audit the kernel tree for correct licenses.

Update the drivers/usb/ and include/linux/usb* files with the correct
SPDX license identifier based on the license text in the file itself.
The SPDX identifier is a legally binding shorthand, which can be used
instead of the full boiler plate text.

This work is based on a script and data from Thomas Gleixner, Philippe
Ombredanne, and Kate Stewart.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Acked-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

67 files changed, 67 insertions, 0 deletions

diff --git a/drivers/usb/serial/aircable.c b/drivers/usb/serial/aircable.c
index 569c220..2ea3fc7 100644
--- a/drivers/usb/serial/aircable.c
+++ b/drivers/usb/serial/aircable.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * AIRcable USB Bluetooth Dongle Driver.
  *
diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c
index 0adbd38..a0cc93b 100644
--- a/drivers/usb/serial/ark3116.c
+++ b/drivers/usb/serial/ark3116.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2009 by Bart Hartgers (bart.hartgers+ark3116@gmail.com)
  * Original version:
diff --git a/drivers/usb/serial/belkin_sa.c b/drivers/usb/serial/belkin_sa.c
index 15bc718..6e0c98b 100644
--- a/drivers/usb/serial/belkin_sa.c
+++ b/drivers/usb/serial/belkin_sa.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Belkin USB Serial Adapter Driver
  *
diff --git a/drivers/usb/serial/belkin_sa.h b/drivers/usb/serial/belkin_sa.h
index c74b58a..345c57f 100644
--- a/drivers/usb/serial/belkin_sa.h
+++ b/drivers/usb/serial/belkin_sa.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Definitions for Belkin USB Serial Adapter Driver
  *
diff --git a/drivers/usb/serial/bus.c b/drivers/usb/serial/bus.c
index 8936a83..db49e2a 100644
--- a/drivers/usb/serial/bus.c
+++ b/drivers/usb/serial/bus.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB Serial Converter Bus specific functions
  *
diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c
index 351745a..0543836 100644
--- a/drivers/usb/serial/ch341.c
+++ b/drivers/usb/serial/ch341.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright 2007, Frank A Kingswood <frank@kingswood-consulting.co.uk>
  * Copyright 2007, Werner Cornelius <werner@cornelius-consult.de>
diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c
index 43a862a..4f80a42 100644
--- a/drivers/usb/serial/console.c
+++ b/drivers/usb/serial/console.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB Serial Console driver
  *
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index 412f812..2bc560a 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Silicon Laboratories CP210x USB to RS232 serial adaptor driver
  *
diff --git a/drivers/usb/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c
index 47fbd9f..830e793 100644
--- a/drivers/usb/serial/cyberjack.c
+++ b/drivers/usb/serial/cyberjack.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  REINER SCT cyberJack pinpad/e-com USB Chipcard Reader Driver
  *
diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c
index 90110de..a43ee56 100644
--- a/drivers/usb/serial/cypress_m8.c
+++ b/drivers/usb/serial/cypress_m8.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * USB Cypress M8 driver
  *
diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c
index 2ce39af..fc30c1d 100644
--- a/drivers/usb/serial/digi_acceleport.c
+++ b/drivers/usb/serial/digi_acceleport.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
 *  Digi AccelePort USB-4 and USB-2 Serial Converters
 *
diff --git a/drivers/usb/serial/empeg.c b/drivers/usb/serial/empeg.c
index 90e603d..b270ff3 100644
--- a/drivers/usb/serial/empeg.c
+++ b/drivers/usb/serial/empeg.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB Empeg empeg-car player driver
  *
diff --git a/drivers/usb/serial/f81232.c b/drivers/usb/serial/f81232.c
index 972f5a5..869bfd0 100644
--- a/drivers/usb/serial/f81232.c
+++ b/drivers/usb/serial/f81232.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Fintek F81232 USB to serial adaptor driver
  *
diff --git a/drivers/usb/serial/f81534.c b/drivers/usb/serial/f81534.c
index cb82148..cc53542 100644
--- a/drivers/usb/serial/f81534.c
+++ b/drivers/usb/serial/f81534.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * F81532/F81534 USB to Serial Ports Bridge
  *
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 49d1b2d..70791b6 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * USB FTDI SIO driver
  *
diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c
index 4f793c8..e06bde8 100644
--- a/drivers/usb/serial/garmin_gps.c
+++ b/drivers/usb/serial/garmin_gps.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Garmin GPS driver
  *
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index 35cb8c0..6d64595 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB Serial Converter Generic functions
  *
diff --git a/drivers/usb/serial/io_16654.h b/drivers/usb/serial/io_16654.h
index a53abc9..9a594aa 100644
--- a/drivers/usb/serial/io_16654.h
+++ b/drivers/usb/serial/io_16654.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /************************************************************************
  *
  *	16654.H		Definitions for 16C654 UART used on EdgePorts
diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c
index bdf8bd8..9ccfe29 100644
--- a/drivers/usb/serial/io_edgeport.c
+++ b/drivers/usb/serial/io_edgeport.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Edgeport USB Serial Converter driver
  *
diff --git a/drivers/usb/serial/io_edgeport.h b/drivers/usb/serial/io_edgeport.h
index ad9c1d4..6571581 100644
--- a/drivers/usb/serial/io_edgeport.h
+++ b/drivers/usb/serial/io_edgeport.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /************************************************************************
  *
  *	io_edgeport.h	Edgeport Linux Interface definitions
diff --git a/drivers/usb/serial/io_ionsp.h b/drivers/usb/serial/io_ionsp.h
index 5cc591b..e9d5cde 100644
--- a/drivers/usb/serial/io_ionsp.h
+++ b/drivers/usb/serial/io_ionsp.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /************************************************************************
  *
  *	IONSP.H		Definitions for I/O Networks Serial Protocol
diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index 6cefb9c..c6fc624 100644
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Edgeport USB Serial Converter driver
  *
diff --git a/drivers/usb/serial/io_ti.h b/drivers/usb/serial/io_ti.h
index 1bd67b2..42eb4af 100644
--- a/drivers/usb/serial/io_ti.h
+++ b/drivers/usb/serial/io_ti.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*****************************************************************************
  *
  *	Copyright (C) 1997-2002 Inside Out Networks, Inc.
diff --git a/drivers/usb/serial/io_usbvend.h b/drivers/usb/serial/io_usbvend.h
index 6f6a856..fec5a0a 100644
--- a/drivers/usb/serial/io_usbvend.h
+++ b/drivers/usb/serial/io_usbvend.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /************************************************************************
  *
  *	USBVEND.H		Vendor-specific USB definitions
diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c
index cde0dcd..52da1a8 100644
--- a/drivers/usb/serial/ipaq.c
+++ b/drivers/usb/serial/ipaq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * USB Compaq iPAQ driver
  *
diff --git a/drivers/usb/serial/ipw.c b/drivers/usb/serial/ipw.c
index 8b1cf18..4a534e8 100644
--- a/drivers/usb/serial/ipw.c
+++ b/drivers/usb/serial/ipw.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * IPWireless 3G UMTS TDD Modem driver (USB connected)
  *
diff --git a/drivers/usb/serial/ir-usb.c b/drivers/usb/serial/ir-usb.c
index f9734a9..8109bcf 100644
--- a/drivers/usb/serial/ir-usb.c
+++ b/drivers/usb/serial/ir-usb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * USB IR Dongle driver
  *
diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c
index 18fc992..c0565a3 100644
--- a/drivers/usb/serial/iuu_phoenix.c
+++ b/drivers/usb/serial/iuu_phoenix.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Infinity Unlimited USB Phoenix driver
  *
diff --git a/drivers/usb/serial/iuu_phoenix.h b/drivers/usb/serial/iuu_phoenix.h
index b82630a..d473cde 100644
--- a/drivers/usb/serial/iuu_phoenix.h
+++ b/drivers/usb/serial/iuu_phoenix.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Infinity Unlimited USB Phoenix driver
  *
diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c
index 5662d32..c5e3499 100644
--- a/drivers/usb/serial/keyspan.c
+++ b/drivers/usb/serial/keyspan.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
   Keyspan USB to Serial Converter driver
 
diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c
index 196908d..04c26f4 100644
--- a/drivers/usb/serial/keyspan_pda.c
+++ b/drivers/usb/serial/keyspan_pda.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * USB Keyspan PDA / Xircom / Entrega Converter driver
  *
diff --git a/drivers/usb/serial/kl5kusb105.c b/drivers/usb/serial/kl5kusb105.c
index 595415e..e719788 100644
--- a/drivers/usb/serial/kl5kusb105.c
+++ b/drivers/usb/serial/kl5kusb105.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * KLSI KL5KUSB105 chip RS232 converter driver
  *
diff --git a/drivers/usb/serial/kobil_sct.c b/drivers/usb/serial/kobil_sct.c
index 2f8fa35..86625e9 100644
--- a/drivers/usb/serial/kobil_sct.c
+++ b/drivers/usb/serial/kobil_sct.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  KOBIL USB Smart Card Terminal Driver
  *
diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c
index 70f346f..ef4f906 100644
--- a/drivers/usb/serial/mct_u232.c
+++ b/drivers/usb/serial/mct_u232.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * MCT (Magic Control Technology Corp.) USB RS232 Converter Driver
  *
diff --git a/drivers/usb/serial/mct_u232.h b/drivers/usb/serial/mct_u232.h
index d325bb8..bd3f407 100644
--- a/drivers/usb/serial/mct_u232.h
+++ b/drivers/usb/serial/mct_u232.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Definitions for MCT (Magic Control Technology) USB-RS232 Converter Driver
  *
diff --git a/drivers/usb/serial/metro-usb.c b/drivers/usb/serial/metro-usb.c
index 36f65df..2832810 100644
--- a/drivers/usb/serial/metro-usb.c
+++ b/drivers/usb/serial/metro-usb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
   Some of this code is credited to Linux USB open source files that are
   distributed with Linux.
diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index a453965..b707525 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * mos7720.c
  *   Controls the Moschip 7720 usb to dual port serial converter
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index e8669aae..24b7a4a 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/drivers/usb/serial/mxuport.c b/drivers/usb/serial/mxuport.c
index 3aef091..1e9430b 100644
--- a/drivers/usb/serial/mxuport.c
+++ b/drivers/usb/serial/mxuport.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *	mxuport.c - MOXA UPort series driver
  *
diff --git a/drivers/usb/serial/navman.c b/drivers/usb/serial/navman.c
index 2a97cdc..ab387a5 100644
--- a/drivers/usb/serial/navman.c
+++ b/drivers/usb/serial/navman.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Navman Serial USB driver
  *
diff --git a/drivers/usb/serial/omninet.c b/drivers/usb/serial/omninet.c
index efcd7fe..8e1406a 100644
--- a/drivers/usb/serial/omninet.c
+++ b/drivers/usb/serial/omninet.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB ZyXEL omni.net LCD PLUS driver
  *
diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c
index 58657d6..66e6f77 100644
--- a/drivers/usb/serial/opticon.c
+++ b/drivers/usb/serial/opticon.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Opticon USB barcode to serial driver
  *
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index ba672cf..eb7d55a 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
   USB Driver for GSM modems
 
diff --git a/drivers/usb/serial/oti6858.c b/drivers/usb/serial/oti6858.c
index b11eead..c6adf41 100644
--- a/drivers/usb/serial/oti6858.c
+++ b/drivers/usb/serial/oti6858.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Ours Technology Inc. OTi-6858 USB to serial adapter driver.
  *
diff --git a/drivers/usb/serial/oti6858.h b/drivers/usb/serial/oti6858.h
index 704ac3a..9fb62f0 100644
--- a/drivers/usb/serial/oti6858.h
+++ b/drivers/usb/serial/oti6858.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Ours Technology Inc. OTi-6858 USB to serial adapter driver.
  *
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index a585b47..5a12f5d 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Prolific PL2303 USB to serial adaptor driver
  *
diff --git a/drivers/usb/serial/pl2303.h b/drivers/usb/serial/pl2303.h
index 3b5a15d..35db754 100644
--- a/drivers/usb/serial/pl2303.h
+++ b/drivers/usb/serial/pl2303.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Prolific PL2303 USB to serial adaptor driver header file
  *
diff --git a/drivers/usb/serial/qcaux.c b/drivers/usb/serial/qcaux.c
index 6e9f8af..f4a5921 100644
--- a/drivers/usb/serial/qcaux.c
+++ b/drivers/usb/serial/qcaux.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Qualcomm USB Auxiliary Serial Port driver
  *
diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c
index 9f9d3a9..6968170 100644
--- a/drivers/usb/serial/qcserial.c
+++ b/drivers/usb/serial/qcserial.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Qualcomm Serial USB driver
  *
diff --git a/drivers/usb/serial/quatech2.c b/drivers/usb/serial/quatech2.c
index 60e17d1..58fe44d 100644
--- a/drivers/usb/serial/quatech2.c
+++ b/drivers/usb/serial/quatech2.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * usb-serial driver for Quatech USB 2 devices
  *
diff --git a/drivers/usb/serial/safe_serial.c b/drivers/usb/serial/safe_serial.c
index 27d7a70..3dd85f0 100644
--- a/drivers/usb/serial/safe_serial.c
+++ b/drivers/usb/serial/safe_serial.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Safe Encapsulated USB Serial Driver
  *
diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c
index 4c4ac47..1adbd5a 100644
--- a/drivers/usb/serial/sierra.c
+++ b/drivers/usb/serial/sierra.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
   USB Driver for Sierra Wireless
 
diff --git a/drivers/usb/serial/spcp8x5.c b/drivers/usb/serial/spcp8x5.c
index 5167b65..48d330f 100644
--- a/drivers/usb/serial/spcp8x5.c
+++ b/drivers/usb/serial/spcp8x5.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * spcp8x5 USB to serial adaptor driver
  *
diff --git a/drivers/usb/serial/ssu100.c b/drivers/usb/serial/ssu100.c
index 5aa7bbb..a7db9af 100644
--- a/drivers/usb/serial/ssu100.c
+++ b/drivers/usb/serial/ssu100.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * usb-serial driver for Quatech SSU-100
  *
diff --git a/drivers/usb/serial/symbolserial.c b/drivers/usb/serial/symbolserial.c
index 0d17272..25d9661 100644
--- a/drivers/usb/serial/symbolserial.c
+++ b/drivers/usb/serial/symbolserial.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Symbol USB barcode to serial driver
  *
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index 8fc3854..eb184a7 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * TI 3410/5052 USB Serial Driver
  *
diff --git a/drivers/usb/serial/upd78f0730.c b/drivers/usb/serial/upd78f0730.c
index 6819a34..facad97 100644
--- a/drivers/usb/serial/upd78f0730.c
+++ b/drivers/usb/serial/upd78f0730.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Renesas Electronics uPD78F0730 USB to serial converter driver
  *
diff --git a/drivers/usb/serial/usb-serial-simple.c b/drivers/usb/serial/usb-serial-simple.c
index e98b6e5..0d692f1 100644
--- a/drivers/usb/serial/usb-serial-simple.c
+++ b/drivers/usb/serial/usb-serial-simple.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB Serial "Simple" driver
  *
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 20639d5..3e27c84 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB Serial Converter driver
  *
diff --git a/drivers/usb/serial/usb_debug.c b/drivers/usb/serial/usb_debug.c
index 12f4c5a..9fbd635 100644
--- a/drivers/usb/serial/usb_debug.c
+++ b/drivers/usb/serial/usb_debug.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB Debug cable driver
  *
diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c
index 59bfcb3..9e48be6 100644
--- a/drivers/usb/serial/usb_wwan.c
+++ b/drivers/usb/serial/usb_wwan.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
   USB Driver layer for GSM modems
 
diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c
index 9f3317a..2ea07ee 100644
--- a/drivers/usb/serial/visor.c
+++ b/drivers/usb/serial/visor.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB HandSpring Visor, Palm m50x, and Sony Clie driver
  * (supports all of the Palm OS USB devices)
diff --git a/drivers/usb/serial/visor.h b/drivers/usb/serial/visor.h
index 4c456dd..e87de8c 100644
--- a/drivers/usb/serial/visor.h
+++ b/drivers/usb/serial/visor.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * USB HandSpring Visor driver
  *
diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c
index 55cebc1..1873f10 100644
--- a/drivers/usb/serial/whiteheat.c
+++ b/drivers/usb/serial/whiteheat.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * USB ConnectTech WhiteHEAT driver
  *
diff --git a/drivers/usb/serial/whiteheat.h b/drivers/usb/serial/whiteheat.h
index 38065df..024cc92 100644
--- a/drivers/usb/serial/whiteheat.h
+++ b/drivers/usb/serial/whiteheat.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * USB ConnectTech WhiteHEAT driver
  *
diff --git a/drivers/usb/serial/wishbone-serial.c b/drivers/usb/serial/wishbone-serial.c
index 4fed4a0..8f227c4 100644
--- a/drivers/usb/serial/wishbone-serial.c
+++ b/drivers/usb/serial/wishbone-serial.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * USB Wishbone-Serial adapter driver
  *
diff --git a/drivers/usb/serial/xsens_mt.c b/drivers/usb/serial/xsens_mt.c
index 3837d51..ef5f3f6 100644
--- a/drivers/usb/serial/xsens_mt.c
+++ b/drivers/usb/serial/xsens_mt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Xsens MT USB driver
  *