diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile
index 748366f..b74c1fd 100644
--- a/drivers/usb/gadget/Makefile
+++ b/drivers/usb/gadget/Makefile
@@ -1,9 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # (C) Copyright 2000-2007
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 obj-$(CONFIG_USB_GADGET) += epautoconf.o config.o usbstring.o
 obj-$(CONFIG_USB_ETHER) += epautoconf.o config.o usbstring.o
diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c
index ad2f606..39ea870 100644
--- a/drivers/usb/gadget/at91_udc.c
+++ b/drivers/usb/gadget/at91_udc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * from linux:
  * c94e289f195e: usb: gadget: remove incorrect __init/__exit annotations
@@ -7,8 +8,6 @@
  * Copyright (C) 2004 by Thomas Rathbone
  * Copyright (C) 2005 by HP Labs
  * Copyright (C) 2005 by David Brownell
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #undef	VERBOSE_DEBUG
diff --git a/drivers/usb/gadget/at91_udc.h b/drivers/usb/gadget/at91_udc.h
index 240bc14..668b8c4 100644
--- a/drivers/usb/gadget/at91_udc.h
+++ b/drivers/usb/gadget/at91_udc.h
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2004 by Thomas Rathbone, HP Labs
  * Copyright (C) 2005 by Ivan Kokshaysky
  * Copyright (C) 2006 by SAN People
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef AT91_UDC_H
diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c
index c0a95a9..c9d4833 100644
--- a/drivers/usb/gadget/atmel_usba_udc.c
+++ b/drivers/usb/gadget/atmel_usba_udc.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for the Atmel USBA high speed USB device controller
  * [Original from Linux kernel: drivers/usb/gadget/atmel_usba_udc.c]
  *
  * Copyright (C) 2005-2013 Atmel Corporation
  *			   Bo Shen <voice.shen@atmel.com>
- *
- * SPDX-License-Identifier:     GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/usb/gadget/atmel_usba_udc.h b/drivers/usb/gadget/atmel_usba_udc.h
index c6d12d3..f6cb48c 100644
--- a/drivers/usb/gadget/atmel_usba_udc.h
+++ b/drivers/usb/gadget/atmel_usba_udc.h
@@ -1,11 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Register definition for Atmel USBA high speed USB device controller
  * [Original from Linux kernel: drivers/usb/gadget/atmel_usba_udc.h]
  *
  * Copyright (C) 2005-2013 Atmel Corporation
  *			   Bo Shen <voice.shen@atmel.com>
- *
- * SPDX-License-Identifier:     GPL-2.0+
  */
 
 #ifndef __LINUX_USB_GADGET_USBA_UDC_H__
diff --git a/drivers/usb/gadget/bcm_udc_otg.h b/drivers/usb/gadget/bcm_udc_otg.h
index d47aefa..24cc936 100644
--- a/drivers/usb/gadget/bcm_udc_otg.h
+++ b/drivers/usb/gadget/bcm_udc_otg.h
@@ -1,7 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright 2015 Broadcom Corporation.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __BCM_UDC_OTG_H
diff --git a/drivers/usb/gadget/bcm_udc_otg_phy.c b/drivers/usb/gadget/bcm_udc_otg_phy.c
index 877f162..3ecb669 100644
--- a/drivers/usb/gadget/bcm_udc_otg_phy.c
+++ b/drivers/usb/gadget/bcm_udc_otg_phy.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2015 Broadcom Corporation.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <config.h>
diff --git a/drivers/usb/gadget/ci_udc.c b/drivers/usb/gadget/ci_udc.c
index 05c01ce..2b9dbf0 100644
--- a/drivers/usb/gadget/ci_udc.c
+++ b/drivers/usb/gadget/ci_udc.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2011, Marvell Semiconductor Inc.
  * Lei Wen <leiwen@marvell.com>
  *
- * SPDX-License-Identifier:	GPL-2.0+
- *
  * Back ported to the 8xx platform (from the 8260 platform) by
  * Murray.Jensen@cmst.csiro.au, 27-Jan-01.
  */
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index 6e4426c..e307c73 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * composite.c - infrastructure for Composite USB Gadgets
  *
  * Copyright (C) 2006-2008 David Brownell
  * U-Boot porting: Lukasz Majewski <l.majewski@samsung.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 #undef DEBUG
 
diff --git a/drivers/usb/gadget/config.c b/drivers/usb/gadget/config.c
index 525dc79..e967826 100644
--- a/drivers/usb/gadget/config.c
+++ b/drivers/usb/gadget/config.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * usb/gadget/config.c -- simplify building config descriptors
  *
  * Copyright (C) 2003 David Brownell
  *
- * SPDX-License-Identifier:	GPL-2.0+
- *
  * Ported to U-Boot by: Thomas Smits <ts.smits@gmail.com> and
  *                      Remy Bohmer <linux@bohmer.net>
  */
diff --git a/drivers/usb/gadget/core.c b/drivers/usb/gadget/core.c
index 30d55a4..ffaf161 100644
--- a/drivers/usb/gadget/core.c
+++ b/drivers/usb/gadget/core.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2003
  * Gerry Hamel, geh@ti.com, Texas Instruments
@@ -12,8 +13,6 @@
  *	Stuart Lynne <sl@lineo.com>,
  *	Tom Rushworth <tbr@lineo.com>,
  *	Bruce Balden <balden@lineo.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <malloc.h>
diff --git a/drivers/usb/gadget/designware_udc.c b/drivers/usb/gadget/designware_udc.c
index a25f501..fa947da 100644
--- a/drivers/usb/gadget/designware_udc.c
+++ b/drivers/usb/gadget/designware_udc.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Based on drivers/usb/gadget/omap1510_udc.c
  * TI OMAP1510 USB bus interface driver
  *
  * (C) Copyright 2009
  * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/usb/gadget/dwc2_udc_otg.c b/drivers/usb/gadget/dwc2_udc_otg.c
index 088811c..e3edd10 100644
--- a/drivers/usb/gadget/dwc2_udc_otg.c
+++ b/drivers/usb/gadget/dwc2_udc_otg.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * drivers/usb/gadget/dwc2_udc_otg.c
  * Designware DWC2 on-chip full/high speed USB OTG 2.0 device controllers
@@ -14,8 +15,6 @@
  * Ported to u-boot:
  * Marek Szyprowski <m.szyprowski@samsung.com>
  * Lukasz Majewski <l.majewski@samsumg.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 #undef DEBUG
 #include <common.h>
diff --git a/drivers/usb/gadget/dwc2_udc_otg_phy.c b/drivers/usb/gadget/dwc2_udc_otg_phy.c
index 0c4620d..47aa78a 100644
--- a/drivers/usb/gadget/dwc2_udc_otg_phy.c
+++ b/drivers/usb/gadget/dwc2_udc_otg_phy.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * drivers/usb/gadget/dwc2_udc_otg.c
  * Designware DWC2 on-chip full/high speed USB OTG 2.0 device controllers
@@ -14,8 +15,6 @@
  * Ported to u-boot:
  * Marek Szyprowski <m.szyprowski@samsung.com>
  * Lukasz Majewski <l.majewski@samsumg.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/usb/gadget/dwc2_udc_otg_priv.h b/drivers/usb/gadget/dwc2_udc_otg_priv.h
index c40ecf8..b64e222 100644
--- a/drivers/usb/gadget/dwc2_udc_otg_priv.h
+++ b/drivers/usb/gadget/dwc2_udc_otg_priv.h
@@ -1,8 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Designware DWC2 on-chip full/high speed USB device controllers
  * Copyright (C) 2005 for Samsung Electronics
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __DWC2_UDC_OTG_PRIV__
diff --git a/drivers/usb/gadget/dwc2_udc_otg_regs.h b/drivers/usb/gadget/dwc2_udc_otg_regs.h
index c94396a..a1829b3 100644
--- a/drivers/usb/gadget/dwc2_udc_otg_regs.h
+++ b/drivers/usb/gadget/dwc2_udc_otg_regs.h
@@ -1,11 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /* linux/arch/arm/plat-s3c/include/plat/regs-otg.h
  *
  * Copyright (C) 2004 Herbert Poetzl <herbert@13thfloor.at>
  *
  * Registers remapping:
  * Lukasz Majewski <l.majewski@samsumg.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __ASM_ARCH_REGS_USB_OTG_HS_H
diff --git a/drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c b/drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c
index 57dbbd5..a75af49 100644
--- a/drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c
+++ b/drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c
  * Designware DWC2 on-chip full/high speed USB OTG 2.0 device controllers
@@ -14,8 +15,6 @@
  * Ported to u-boot:
  * Marek Szyprowski <m.szyprowski@samsung.com>
  * Lukasz Majewski <l.majewski@samsumg.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 static u8 clear_feature_num;
diff --git a/drivers/usb/gadget/ep0.c b/drivers/usb/gadget/ep0.c
index 4ba2f3d..a36d9ec 100644
--- a/drivers/usb/gadget/ep0.c
+++ b/drivers/usb/gadget/ep0.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2003
  * Gerry Hamel, geh@ti.com, Texas Instruments
@@ -15,8 +16,6 @@
  *	Stuart Lynne <sl@lineo.com>,
  *	Tom Rushworth <tbr@lineo.com>,
  *	Bruce Balden <balden@lineo.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 /*
diff --git a/drivers/usb/gadget/ep0.h b/drivers/usb/gadget/ep0.h
index 6042e75..976825a 100644
--- a/drivers/usb/gadget/ep0.h
+++ b/drivers/usb/gadget/ep0.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2003
  * Gerry Hamel, geh@ti.com, Texas Instruments
@@ -12,8 +13,6 @@
  *	Stuart Lynne <sl@lineo.com>,
  *	Tom Rushworth <tbr@lineo.com>,
  *	Bruce Balden <balden@lineo.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __USBDCORE_EP0_H__
diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 6d6dbcb..179b94c 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * epautoconf.c -- endpoint autoconfiguration for usb gadget drivers
  *
  * Copyright (C) 2004 David Brownell
  *
- * SPDX-License-Identifier:	GPL-2.0+
- *
- * SPDX-License-Identifier:	GPL-2.0+
- *
  * Ported to U-Boot by: Thomas Smits <ts.smits@gmail.com> and
  *                      Remy Bohmer <linux@bohmer.net>
  */
diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c
index 386505d..8ab9b9f 100644
--- a/drivers/usb/gadget/ether.c
+++ b/drivers/usb/gadget/ether.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * ether.c -- Ethernet gadget driver, with CDC and non-CDC options
  *
  * Copyright (C) 2003-2005,2008 David Brownell
  * Copyright (C) 2003-2004 Robert Schwebel, Benedikt Spranger
  * Copyright (C) 2008 Nokia Corporation
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/usb/gadget/f_dfu.c b/drivers/usb/gadget/f_dfu.c
index bc4be71..30ece52 100644
--- a/drivers/usb/gadget/f_dfu.c
+++ b/drivers/usb/gadget/f_dfu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * f_dfu.c -- Device Firmware Update USB function
  *
@@ -11,8 +12,6 @@
  *
  * based on existing SAM7DFU code from OpenPCD:
  * (C) Copyright 2006 by Harald Welte <hwelte at hmw-consulting.de>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <errno.h>
diff --git a/drivers/usb/gadget/f_dfu.h b/drivers/usb/gadget/f_dfu.h
index a256577..a175e3f 100644
--- a/drivers/usb/gadget/f_dfu.h
+++ b/drivers/usb/gadget/f_dfu.h
@@ -1,10 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * f_dfu.h -- Device Firmware Update gadget
  *
  * Copyright (C) 2011-2012 Samsung Electronics
  * author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __F_DFU_H_
diff --git a/drivers/usb/gadget/f_fastboot.c b/drivers/usb/gadget/f_fastboot.c
index 7acffb6..3acadae 100644
--- a/drivers/usb/gadget/f_fastboot.c
+++ b/drivers/usb/gadget/f_fastboot.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2008 - 2009
  * Windriver, <www.windriver.com>
@@ -7,8 +8,6 @@
  *
  * Copyright 2014 Linaro, Ltd.
  * Rob Herring <robh@kernel.org>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 #include <config.h>
 #include <common.h>
diff --git a/drivers/usb/gadget/f_rockusb.c b/drivers/usb/gadget/f_rockusb.c
index ad3ae91..b8833d0 100644
--- a/drivers/usb/gadget/f_rockusb.c
+++ b/drivers/usb/gadget/f_rockusb.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2017
  *
  * Eddie Cai <eddie.cai.linux@gmail.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 #include <config.h>
 #include <common.h>
diff --git a/drivers/usb/gadget/f_sdp.c b/drivers/usb/gadget/f_sdp.c
index 43c5cfb..00a9f88 100644
--- a/drivers/usb/gadget/f_sdp.c
+++ b/drivers/usb/gadget/f_sdp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * f_sdp.c -- USB HID Serial Download Protocol
  *
@@ -13,8 +14,6 @@
  * SKIP_DCD_HEADER are only stubs.
  *
  * Parts of the implementation are based on f_dfu and f_thor.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <errno.h>
diff --git a/drivers/usb/gadget/f_thor.c b/drivers/usb/gadget/f_thor.c
index 18f233a..f874509 100644
--- a/drivers/usb/gadget/f_thor.c
+++ b/drivers/usb/gadget/f_thor.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * f_thor.c -- USB TIZEN THOR Downloader gadget function
  *
@@ -11,8 +12,6 @@
  * Copyright (C) 2009 Samsung Electronics
  * Minkyu Kang <mk7.kang@samsung.com>
  * Sanghee Kim <sh0130.kim@samsung.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <errno.h>
diff --git a/drivers/usb/gadget/f_thor.h b/drivers/usb/gadget/f_thor.h
index 8341285..47abc8a 100644
--- a/drivers/usb/gadget/f_thor.h
+++ b/drivers/usb/gadget/f_thor.h
@@ -1,10 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * f_thor.h - USB TIZEN THOR - internal gadget definitions
  *
  * Copyright (C) 2013 Samsung Electronics
  * Lukasz Majewski  <l.majewski@samsung.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef _USB_THOR_H_
diff --git a/drivers/usb/gadget/fotg210.c b/drivers/usb/gadget/fotg210.c
index e061b2e..176068c 100644
--- a/drivers/usb/gadget/fotg210.c
+++ b/drivers/usb/gadget/fotg210.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Faraday USB 2.0 OTG Controller
  *
  * (C) Copyright 2010 Faraday Technology
  * Dante Su <dantesu@faraday-tech.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/usb/gadget/g_dnl.c b/drivers/usb/gadget/g_dnl.c
index 99d500a..e9e1600 100644
--- a/drivers/usb/gadget/g_dnl.c
+++ b/drivers/usb/gadget/g_dnl.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * g_dnl.c -- USB Downloader Gadget
  *
  * Copyright (C) 2012 Samsung Electronics
  * Lukasz Majewski  <l.majewski@samsung.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/usb/gadget/pxa25x_udc.c b/drivers/usb/gadget/pxa25x_udc.c
index 6a8949d..44092df 100644
--- a/drivers/usb/gadget/pxa25x_udc.c
+++ b/drivers/usb/gadget/pxa25x_udc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Intel PXA25x and IXP4xx on-chip full speed USB device controllers
  *
@@ -8,8 +9,6 @@
  * Copyright (C) 2003 Joshua Wise
  * Copyright (C) 2012 Lukasz Dalek <luk0104@gmail.com>
  *
- * SPDX-License-Identifier:	GPL-2.0+
- *
  * MODULE_AUTHOR("Frank Becker, Robert Schwebel, David Brownell");
  */
 
diff --git a/drivers/usb/gadget/pxa25x_udc.h b/drivers/usb/gadget/pxa25x_udc.h
index f543b2d..7c3882a 100644
--- a/drivers/usb/gadget/pxa25x_udc.h
+++ b/drivers/usb/gadget/pxa25x_udc.h
@@ -1,11 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Intel PXA25x on-chip full speed USB device controller
  *
  * Copyright (C) 2003 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix
  * Copyright (C) 2003 David Brownell
  * Copyright (C) 2012 Lukasz Dalek <luk0104@gmail.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __LINUX_USB_GADGET_PXA25X_H
diff --git a/drivers/usb/gadget/pxa27x_udc.c b/drivers/usb/gadget/pxa27x_udc.c
index c7b21ae..15c4378 100644
--- a/drivers/usb/gadget/pxa27x_udc.c
+++ b/drivers/usb/gadget/pxa27x_udc.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * PXA27x USB device driver for u-boot.
  *
  * Copyright (C) 2007 Rodolfo Giometti <giometti@linux.it>
  * Copyright (C) 2007 Eurotech S.p.A.  <info@eurotech.it>
  * Copyright (C) 2008 Vivek Kutal      <vivek.kutal@azingo.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 
diff --git a/drivers/usb/gadget/rndis.c b/drivers/usb/gadget/rndis.c
index 5ad4813..d47e29e 100644
--- a/drivers/usb/gadget/rndis.c
+++ b/drivers/usb/gadget/rndis.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * RNDIS MSG parser
  *
@@ -15,8 +16,6 @@
  *
  * Copyright (C) 2004 by David Brownell
  *		updates to merge with Linux 2.6, better match RNDIS spec
- *
- * SPDX-License-Identifier:	GPL-2.0
  */
 
 #include <common.h>
diff --git a/drivers/usb/gadget/rndis.h b/drivers/usb/gadget/rndis.h
index 084af85..e827af0 100644
--- a/drivers/usb/gadget/rndis.h
+++ b/drivers/usb/gadget/rndis.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * RNDIS	Definitions for Remote NDIS
  *
@@ -6,8 +7,6 @@
  *
  *		This software was originally developed in conformance with
  *		Microsoft's Remote NDIS Specification License Agreement.
- *
- * SPDX-License-Identifier:	GPL-2.0
  */
 
 #ifndef _USBGADGET_RNDIS_H
diff --git a/drivers/usb/gadget/storage_common.c b/drivers/usb/gadget/storage_common.c
index 4d5a9a8..ce046e7 100644
--- a/drivers/usb/gadget/storage_common.c
+++ b/drivers/usb/gadget/storage_common.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * storage_common.c -- Common definitions for mass storage functionality
  *
@@ -10,8 +11,6 @@
  *
  * Code refactoring & cleanup:
  * Łukasz Majewski <l.majewski@samsung.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 
diff --git a/drivers/usb/gadget/udc/Makefile b/drivers/usb/gadget/udc/Makefile
index 1699ccd..449339f 100644
--- a/drivers/usb/gadget/udc/Makefile
+++ b/drivers/usb/gadget/udc/Makefile
@@ -1,7 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # USB peripheral controller drivers
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 obj-$(CONFIG_USB_DWC3_GADGET)	+= udc-core.o
diff --git a/drivers/usb/gadget/udc/udc-core.c b/drivers/usb/gadget/udc/udc-core.c
index 326757b..f5c30dd 100644
--- a/drivers/usb/gadget/udc/udc-core.c
+++ b/drivers/usb/gadget/udc/udc-core.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * udc-core.c - Core UDC Framework
  *
@@ -10,8 +11,6 @@
  *
  * commit 02e8c96627 : usb: gadget: udc: core: prepend udc_attach_driver with
  *		       usb_
- *
- * SPDX-License-Identifier:     GPL-2.0
  */
 
 #include <linux/compat.h>
diff --git a/drivers/usb/gadget/usbstring.c b/drivers/usb/gadget/usbstring.c
index 67e98c0..83cdd8a 100644
--- a/drivers/usb/gadget/usbstring.c
+++ b/drivers/usb/gadget/usbstring.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: LGPL-2.1+
 /*
  * Copyright (C) 2003 David Brownell
  *
- * SPDX-License-Identifier:	LGPL-2.1+
- *
  * Ported to U-Boot by: Thomas Smits <ts.smits@gmail.com> and
  *                      Remy Bohmer <linux@bohmer.net>
  */