License cleanup: add SPDX GPL-2.0 license identifier to files with no license

Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

60 files changed, 60 insertions, 0 deletions

diff --git a/include/linux/platform_data/ad7291.h b/include/linux/platform_data/ad7291.h
index bbd89fa51188..b1fd1530c9a5 100644
--- a/include/linux/platform_data/ad7291.h
+++ b/include/linux/platform_data/ad7291.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IIO_AD7291_H__
 #define __IIO_AD7291_H__
 
diff --git a/include/linux/platform_data/ad7791.h b/include/linux/platform_data/ad7791.h
index f9e4db1b82ae..cc7533049b5b 100644
--- a/include/linux/platform_data/ad7791.h
+++ b/include/linux/platform_data/ad7791.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_PLATFORM_DATA_AD7791__
 #define __LINUX_PLATFORM_DATA_AD7791__
 
diff --git a/include/linux/platform_data/ad7879.h b/include/linux/platform_data/ad7879.h
index 69e2e1fd2bc8..6655cc8453ac 100644
--- a/include/linux/platform_data/ad7879.h
+++ b/include/linux/platform_data/ad7879.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* linux/platform_data/ad7879.h */
 
 /* Touchscreen characteristics vary between boards and models.  The
diff --git a/include/linux/platform_data/asoc-imx-ssi.h b/include/linux/platform_data/asoc-imx-ssi.h
index 92c7fd72f636..902851aeb0b4 100644
--- a/include/linux/platform_data/asoc-imx-ssi.h
+++ b/include/linux/platform_data/asoc-imx-ssi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MACH_SSI_H
 #define __MACH_SSI_H
 
diff --git a/include/linux/platform_data/asoc-kirkwood.h b/include/linux/platform_data/asoc-kirkwood.h
index d6a55bd2e578..d442cefa3928 100644
--- a/include/linux/platform_data/asoc-kirkwood.h
+++ b/include/linux/platform_data/asoc-kirkwood.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PLAT_AUDIO_H
 #define __PLAT_AUDIO_H
 
diff --git a/include/linux/platform_data/asoc-mx27vis.h b/include/linux/platform_data/asoc-mx27vis.h
index 409adcd04d04..2107d0d992dd 100644
--- a/include/linux/platform_data/asoc-mx27vis.h
+++ b/include/linux/platform_data/asoc-mx27vis.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PLATFORM_DATA_ASOC_MX27VIS_H
 #define __PLATFORM_DATA_ASOC_MX27VIS_H
 
diff --git a/include/linux/platform_data/asoc-palm27x.h b/include/linux/platform_data/asoc-palm27x.h
index 58afb30d5298..22b69a393a57 100644
--- a/include/linux/platform_data/asoc-palm27x.h
+++ b/include/linux/platform_data/asoc-palm27x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _INCLUDE_PALMASOC_H_
 #define _INCLUDE_PALMASOC_H_
 
diff --git a/include/linux/platform_data/bcmgenet.h b/include/linux/platform_data/bcmgenet.h
index 26af54321958..d8f8738629d2 100644
--- a/include/linux/platform_data/bcmgenet.h
+++ b/include/linux/platform_data/bcmgenet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_PLATFORM_DATA_BCMGENET_H__
 #define __LINUX_PLATFORM_DATA_BCMGENET_H__
 
diff --git a/include/linux/platform_data/crypto-atmel.h b/include/linux/platform_data/crypto-atmel.h
index b46e0d9062a0..0471aaf6999b 100644
--- a/include/linux/platform_data/crypto-atmel.h
+++ b/include/linux/platform_data/crypto-atmel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_CRYPTO_ATMEL_H
 #define __LINUX_CRYPTO_ATMEL_H
 
diff --git a/include/linux/platform_data/dma-ep93xx.h b/include/linux/platform_data/dma-ep93xx.h
index e82c642fa53c..f8f1f6b952a6 100644
--- a/include/linux/platform_data/dma-ep93xx.h
+++ b/include/linux/platform_data/dma-ep93xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_DMA_H
 #define __ASM_ARCH_DMA_H
 
diff --git a/include/linux/platform_data/dma-imx-sdma.h b/include/linux/platform_data/dma-imx-sdma.h
index 2d08816720f6..6eaa53cef0bd 100644
--- a/include/linux/platform_data/dma-imx-sdma.h
+++ b/include/linux/platform_data/dma-imx-sdma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MACH_MXC_SDMA_H__
 #define __MACH_MXC_SDMA_H__
 
diff --git a/include/linux/platform_data/dma-mv_xor.h b/include/linux/platform_data/dma-mv_xor.h
index 92ffd3245f76..6867a7ea329b 100644
--- a/include/linux/platform_data/dma-mv_xor.h
+++ b/include/linux/platform_data/dma-mv_xor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Marvell XOR platform device data definition file.
  */
diff --git a/include/linux/platform_data/ds620.h b/include/linux/platform_data/ds620.h
index 736bb87ac0fc..6ef58bb77e46 100644
--- a/include/linux/platform_data/ds620.h
+++ b/include/linux/platform_data/ds620.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_DS620_H
 #define _LINUX_DS620_H
 
diff --git a/include/linux/platform_data/efm32-spi.h b/include/linux/platform_data/efm32-spi.h
index 31b19ca1d73a..a2c56fcd0534 100644
--- a/include/linux/platform_data/efm32-spi.h
+++ b/include/linux/platform_data/efm32-spi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_PLATFORM_DATA_EFM32_SPI_H__
 #define __LINUX_PLATFORM_DATA_EFM32_SPI_H__
 
diff --git a/include/linux/platform_data/efm32-uart.h b/include/linux/platform_data/efm32-uart.h
index ed0e975b3c54..ccbb8f11db75 100644
--- a/include/linux/platform_data/efm32-uart.h
+++ b/include/linux/platform_data/efm32-uart.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *
  *
diff --git a/include/linux/platform_data/gpio-htc-egpio.h b/include/linux/platform_data/gpio-htc-egpio.h
index b4201c971367..b7baf1e42c55 100644
--- a/include/linux/platform_data/gpio-htc-egpio.h
+++ b/include/linux/platform_data/gpio-htc-egpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * HTC simple EGPIO irq and gpio extender
  */
diff --git a/include/linux/platform_data/i2c-nuc900.h b/include/linux/platform_data/i2c-nuc900.h
index 9ffb12d06e91..23036273a97e 100644
--- a/include/linux/platform_data/i2c-nuc900.h
+++ b/include/linux/platform_data/i2c-nuc900.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_NUC900_I2C_H
 #define __ASM_ARCH_NUC900_I2C_H
 
diff --git a/include/linux/platform_data/irda-pxaficp.h b/include/linux/platform_data/irda-pxaficp.h
index 3cd41f77dda4..bd35ddcf3068 100644
--- a/include/linux/platform_data/irda-pxaficp.h
+++ b/include/linux/platform_data/irda-pxaficp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASMARM_ARCH_IRDA_H
 #define ASMARM_ARCH_IRDA_H
 
diff --git a/include/linux/platform_data/itco_wdt.h b/include/linux/platform_data/itco_wdt.h
index 0e95527edf25..2ccdce6a4e27 100644
--- a/include/linux/platform_data/itco_wdt.h
+++ b/include/linux/platform_data/itco_wdt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Platform data for the Intel TCO Watchdog
  */
diff --git a/include/linux/platform_data/keyboard-pxa930_rotary.h b/include/linux/platform_data/keyboard-pxa930_rotary.h
index 053587caffdd..3271aa01cbe8 100644
--- a/include/linux/platform_data/keyboard-pxa930_rotary.h
+++ b/include/linux/platform_data/keyboard-pxa930_rotary.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_PXA930_ROTARY_H
 #define __ASM_ARCH_PXA930_ROTARY_H
 
diff --git a/include/linux/platform_data/keypad-ep93xx.h b/include/linux/platform_data/keypad-ep93xx.h
index adccee25b162..0e36818e3680 100644
--- a/include/linux/platform_data/keypad-ep93xx.h
+++ b/include/linux/platform_data/keypad-ep93xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __KEYPAD_EP93XX_H
 #define __KEYPAD_EP93XX_H
 
diff --git a/include/linux/platform_data/keypad-pxa27x.h b/include/linux/platform_data/keypad-pxa27x.h
index 24625569d16d..a376442b9935 100644
--- a/include/linux/platform_data/keypad-pxa27x.h
+++ b/include/linux/platform_data/keypad-pxa27x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_PXA27x_KEYPAD_H
 #define __ASM_ARCH_PXA27x_KEYPAD_H
 
diff --git a/include/linux/platform_data/keypad-w90p910.h b/include/linux/platform_data/keypad-w90p910.h
index 556778e8ddaa..206ca4ecd93f 100644
--- a/include/linux/platform_data/keypad-w90p910.h
+++ b/include/linux/platform_data/keypad-w90p910.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_W90P910_KEYPAD_H
 #define __ASM_ARCH_W90P910_KEYPAD_H
 
diff --git a/include/linux/platform_data/lcd-mipid.h b/include/linux/platform_data/lcd-mipid.h
index 8e52c6572281..63f05eb23827 100644
--- a/include/linux/platform_data/lcd-mipid.h
+++ b/include/linux/platform_data/lcd-mipid.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LCD_MIPID_H
 #define __LCD_MIPID_H
 
diff --git a/include/linux/platform_data/max3421-hcd.h b/include/linux/platform_data/max3421-hcd.h
index 0303d1970084..5947a6f43d60 100644
--- a/include/linux/platform_data/max3421-hcd.h
+++ b/include/linux/platform_data/max3421-hcd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (c) 2014 eGauge Systems LLC
  *	Contributed by David Mosberger-Tang <davidm@egauge.net>
diff --git a/include/linux/platform_data/max6639.h b/include/linux/platform_data/max6639.h
index 6011c42034da..65bfdb4fdc15 100644
--- a/include/linux/platform_data/max6639.h
+++ b/include/linux/platform_data/max6639.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MAX6639_H
 #define _LINUX_MAX6639_H
 
diff --git a/include/linux/platform_data/max732x.h b/include/linux/platform_data/max732x.h
index c04bac8bf2fe..f231c635faec 100644
--- a/include/linux/platform_data/max732x.h
+++ b/include/linux/platform_data/max732x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_I2C_MAX732X_H
 #define __LINUX_I2C_MAX732X_H
 
diff --git a/include/linux/platform_data/media/ir-rx51.h b/include/linux/platform_data/media/ir-rx51.h
index 2c94ab568bfa..9d127aa648e7 100644
--- a/include/linux/platform_data/media/ir-rx51.h
+++ b/include/linux/platform_data/media/ir-rx51.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IR_RX51_H
 #define _IR_RX51_H
 
diff --git a/include/linux/platform_data/media/mmp-camera.h b/include/linux/platform_data/media/mmp-camera.h
index 7611963a257f..83804028115c 100644
--- a/include/linux/platform_data/media/mmp-camera.h
+++ b/include/linux/platform_data/media/mmp-camera.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Information for the Marvell Armada MMP camera
  */
diff --git a/include/linux/platform_data/media/omap4iss.h b/include/linux/platform_data/media/omap4iss.h
index 0d7620db5e32..2a511a8fcda7 100644
--- a/include/linux/platform_data/media/omap4iss.h
+++ b/include/linux/platform_data/media/omap4iss.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ARCH_ARM_PLAT_OMAP4_ISS_H
 #define ARCH_ARM_PLAT_OMAP4_ISS_H
 
diff --git a/include/linux/platform_data/mmc-davinci.h b/include/linux/platform_data/mmc-davinci.h
index 9cea4ee377b5..87a8bed3b6cb 100644
--- a/include/linux/platform_data/mmc-davinci.h
+++ b/include/linux/platform_data/mmc-davinci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Board-specific MMC configuration
  */
diff --git a/include/linux/platform_data/mmc-mxcmmc.h b/include/linux/platform_data/mmc-mxcmmc.h
index b0fdaa9bd185..ac677351316a 100644
--- a/include/linux/platform_data/mmc-mxcmmc.h
+++ b/include/linux/platform_data/mmc-mxcmmc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASMARM_ARCH_MMC_H
 #define ASMARM_ARCH_MMC_H
 
diff --git a/include/linux/platform_data/mmc-pxamci.h b/include/linux/platform_data/mmc-pxamci.h
index 1706b3597ce0..752f97c62ef2 100644
--- a/include/linux/platform_data/mmc-pxamci.h
+++ b/include/linux/platform_data/mmc-pxamci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASMARM_ARCH_MMC_H
 #define ASMARM_ARCH_MMC_H
 
diff --git a/include/linux/platform_data/mmc-s3cmci.h b/include/linux/platform_data/mmc-s3cmci.h
index c42d31711944..b68d9f0bdd9e 100644
--- a/include/linux/platform_data/mmc-s3cmci.h
+++ b/include/linux/platform_data/mmc-s3cmci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ARCH_MCI_H
 #define _ARCH_MCI_H
 
diff --git a/include/linux/platform_data/mmc-sdhci-s3c.h b/include/linux/platform_data/mmc-sdhci-s3c.h
index 249f02387a35..74a54eeb27b1 100644
--- a/include/linux/platform_data/mmc-sdhci-s3c.h
+++ b/include/linux/platform_data/mmc-sdhci-s3c.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PLATFORM_DATA_SDHCI_S3C_H
 #define __PLATFORM_DATA_SDHCI_S3C_H
 
diff --git a/include/linux/platform_data/mouse-pxa930_trkball.h b/include/linux/platform_data/mouse-pxa930_trkball.h
index 5e0789bc4729..ba0ac7a30d8c 100644
--- a/include/linux/platform_data/mouse-pxa930_trkball.h
+++ b/include/linux/platform_data/mouse-pxa930_trkball.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_PXA930_TRKBALL_H
 #define __ASM_ARCH_PXA930_TRKBALL_H
 
diff --git a/include/linux/platform_data/mtd-nand-pxa3xx.h b/include/linux/platform_data/mtd-nand-pxa3xx.h
index 394d15597dc7..b42ad83cbc20 100644
--- a/include/linux/platform_data/mtd-nand-pxa3xx.h
+++ b/include/linux/platform_data/mtd-nand-pxa3xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_PXA3XX_NAND_H
 #define __ASM_ARCH_PXA3XX_NAND_H
 
diff --git a/include/linux/platform_data/omap1_bl.h b/include/linux/platform_data/omap1_bl.h
index 881a8e92d605..5e8b17d77a5f 100644
--- a/include/linux/platform_data/omap1_bl.h
+++ b/include/linux/platform_data/omap1_bl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __OMAP1_BL_H__
 #define __OMAP1_BL_H__
 
diff --git a/include/linux/platform_data/pca953x.h b/include/linux/platform_data/pca953x.h
index 3c98dd4f901f..4eb53e023997 100644
--- a/include/linux/platform_data/pca953x.h
+++ b/include/linux/platform_data/pca953x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PCA953X_H
 #define _LINUX_PCA953X_H
 
diff --git a/include/linux/platform_data/pcf857x.h b/include/linux/platform_data/pcf857x.h
index 0767a2a6b2f1..11d4ed78c7f4 100644
--- a/include/linux/platform_data/pcf857x.h
+++ b/include/linux/platform_data/pcf857x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_PCF857X_H
 #define __LINUX_PCF857X_H
 
diff --git a/include/linux/platform_data/pcmcia-pxa2xx_viper.h b/include/linux/platform_data/pcmcia-pxa2xx_viper.h
index d428be4db44c..a23b58aff9e1 100644
--- a/include/linux/platform_data/pcmcia-pxa2xx_viper.h
+++ b/include/linux/platform_data/pcmcia-pxa2xx_viper.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ARCOM_PCMCIA_H
 #define __ARCOM_PCMCIA_H
 
diff --git a/include/linux/platform_data/pinctrl-single.h b/include/linux/platform_data/pinctrl-single.h
index 72eacda9b360..1cf36fdf9510 100644
--- a/include/linux/platform_data/pinctrl-single.h
+++ b/include/linux/platform_data/pinctrl-single.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /**
  * irq:		optional wake-up interrupt
  * rearm:	optional soc specific rearm function
diff --git a/include/linux/platform_data/pixcir_i2c_ts.h b/include/linux/platform_data/pixcir_i2c_ts.h
index 646af6f8b838..4ab3cd6f1cc2 100644
--- a/include/linux/platform_data/pixcir_i2c_ts.h
+++ b/include/linux/platform_data/pixcir_i2c_ts.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef	_PIXCIR_I2C_TS_H
 #define	_PIXCIR_I2C_TS_H
 
diff --git a/include/linux/platform_data/pxa2xx_udc.h b/include/linux/platform_data/pxa2xx_udc.h
index c6c5e98b5b82..ff9c35dca59d 100644
--- a/include/linux/platform_data/pxa2xx_udc.h
+++ b/include/linux/platform_data/pxa2xx_udc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This supports machine-specific differences in how the PXA2xx
  * USB Device Controller (UDC) is wired.
diff --git a/include/linux/platform_data/sa11x0-serial.h b/include/linux/platform_data/sa11x0-serial.h
index 009e1d83fe39..8b79ab08af45 100644
--- a/include/linux/platform_data/sa11x0-serial.h
+++ b/include/linux/platform_data/sa11x0-serial.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Author: Nicolas Pitre
  *
diff --git a/include/linux/platform_data/si5351.h b/include/linux/platform_data/si5351.h
index 533d9807e543..818c5c6e203f 100644
--- a/include/linux/platform_data/si5351.h
+++ b/include/linux/platform_data/si5351.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Si5351A/B/C programmable clock generator platform_data.
  */
diff --git a/include/linux/platform_data/spi-ep93xx.h b/include/linux/platform_data/spi-ep93xx.h
index 171a271c2cbd..eb16c6739ac2 100644
--- a/include/linux/platform_data/spi-ep93xx.h
+++ b/include/linux/platform_data/spi-ep93xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_EP93XX_SPI_H
 #define __ASM_MACH_EP93XX_SPI_H
 
diff --git a/include/linux/platform_data/spi-imx.h b/include/linux/platform_data/spi-imx.h
index 08be445e8eb8..6f012fefa1a2 100644
--- a/include/linux/platform_data/spi-imx.h
+++ b/include/linux/platform_data/spi-imx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef __MACH_SPI_H_
 #define __MACH_SPI_H_
diff --git a/include/linux/platform_data/spi-omap2-mcspi.h b/include/linux/platform_data/spi-omap2-mcspi.h
index c100456eab17..13c83a25958a 100644
--- a/include/linux/platform_data/spi-omap2-mcspi.h
+++ b/include/linux/platform_data/spi-omap2-mcspi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _OMAP2_MCSPI_H
 #define _OMAP2_MCSPI_H
 
diff --git a/include/linux/platform_data/st1232_pdata.h b/include/linux/platform_data/st1232_pdata.h
index cac3e7b4c454..1dcd23bee24e 100644
--- a/include/linux/platform_data/st1232_pdata.h
+++ b/include/linux/platform_data/st1232_pdata.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_ST1232_PDATA_H
 #define _LINUX_ST1232_PDATA_H
 
diff --git a/include/linux/platform_data/syscon.h b/include/linux/platform_data/syscon.h
index 2354c6fa3726..2c089dd3e2bd 100644
--- a/include/linux/platform_data/syscon.h
+++ b/include/linux/platform_data/syscon.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PLATFORM_DATA_SYSCON_H
 #define PLATFORM_DATA_SYSCON_H
 
diff --git a/include/linux/platform_data/tsc2007.h b/include/linux/platform_data/tsc2007.h
index c2d3aa1dadd4..a0ca52c41ccb 100644
--- a/include/linux/platform_data/tsc2007.h
+++ b/include/linux/platform_data/tsc2007.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_I2C_TSC2007_H
 #define __LINUX_I2C_TSC2007_H
 
diff --git a/include/linux/platform_data/tsl2563.h b/include/linux/platform_data/tsl2563.h
index c90d7a09dda7..9cf9309c3f24 100644
--- a/include/linux/platform_data/tsl2563.h
+++ b/include/linux/platform_data/tsl2563.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_TSL2563_H
 #define __LINUX_TSL2563_H
 
diff --git a/include/linux/platform_data/usb-ehci-mxc.h b/include/linux/platform_data/usb-ehci-mxc.h
index 157e71f79f99..ad9794d09bc8 100644
--- a/include/linux/platform_data/usb-ehci-mxc.h
+++ b/include/linux/platform_data/usb-ehci-mxc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __INCLUDE_ASM_ARCH_MXC_EHCI_H
 #define __INCLUDE_ASM_ARCH_MXC_EHCI_H
 
diff --git a/include/linux/platform_data/usb-ohci-pxa27x.h b/include/linux/platform_data/usb-ohci-pxa27x.h
index 95b6e2a6e514..69adea7694f3 100644
--- a/include/linux/platform_data/usb-ohci-pxa27x.h
+++ b/include/linux/platform_data/usb-ohci-pxa27x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASMARM_ARCH_OHCI_H
 #define ASMARM_ARCH_OHCI_H
 
diff --git a/include/linux/platform_data/usb3503.h b/include/linux/platform_data/usb3503.h
index 1d1b6ef871f6..e049d51c1353 100644
--- a/include/linux/platform_data/usb3503.h
+++ b/include/linux/platform_data/usb3503.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __USB3503_H__
 #define __USB3503_H__
 
diff --git a/include/linux/platform_data/video-clcd-versatile.h b/include/linux/platform_data/video-clcd-versatile.h
index 09ccf182af4d..305ebaec3afd 100644
--- a/include/linux/platform_data/video-clcd-versatile.h
+++ b/include/linux/platform_data/video-clcd-versatile.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PLAT_CLCD_H
 #define PLAT_CLCD_H
 
diff --git a/include/linux/platform_data/video-ep93xx.h b/include/linux/platform_data/video-ep93xx.h
index 699ac4109366..a6f3ccdec1cb 100644
--- a/include/linux/platform_data/video-ep93xx.h
+++ b/include/linux/platform_data/video-ep93xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __VIDEO_EP93XX_H
 #define __VIDEO_EP93XX_H
 
diff --git a/include/linux/platform_data/video-imxfb.h b/include/linux/platform_data/video-imxfb.h
index cf9348b376ac..02812651af7d 100644
--- a/include/linux/platform_data/video-imxfb.h
+++ b/include/linux/platform_data/video-imxfb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This structure describes the machine which we are running on.
  */
diff --git a/include/linux/platform_data/video_s3c.h b/include/linux/platform_data/video_s3c.h
index 48883995f47f..dd7747ba3269 100644
--- a/include/linux/platform_data/video_s3c.h
+++ b/include/linux/platform_data/video_s3c.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PLATFORM_DATA_VIDEO_S3C
 #define __PLATFORM_DATA_VIDEO_S3C