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>

59 files changed, 59 insertions, 0 deletions

diff --git a/arch/m32r/include/asm/assembler.h b/arch/m32r/include/asm/assembler.h
index 728799f..ed90d894 100644
--- a/arch/m32r/include/asm/assembler.h
+++ b/arch/m32r/include/asm/assembler.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_ASSEMBLER_H
 #define _ASM_M32R_ASSEMBLER_H
 
diff --git a/arch/m32r/include/asm/atomic.h b/arch/m32r/include/asm/atomic.h
index 640cc1c..8bf67e5 100644
--- a/arch/m32r/include/asm/atomic.h
+++ b/arch/m32r/include/asm/atomic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_ATOMIC_H
 #define _ASM_M32R_ATOMIC_H
 
diff --git a/arch/m32r/include/asm/bitops.h b/arch/m32r/include/asm/bitops.h
index 86ba2b4..64e70e5 100644
--- a/arch/m32r/include/asm/bitops.h
+++ b/arch/m32r/include/asm/bitops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_BITOPS_H
 #define _ASM_M32R_BITOPS_H
 
diff --git a/arch/m32r/include/asm/bug.h b/arch/m32r/include/asm/bug.h
index 4cc0462..7197688 100644
--- a/arch/m32r/include/asm/bug.h
+++ b/arch/m32r/include/asm/bug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M32R_BUG_H
 #define _M32R_BUG_H
 #include <asm-generic/bug.h>
diff --git a/arch/m32r/include/asm/bugs.h b/arch/m32r/include/asm/bugs.h
index f77214e..74a6d42 100644
--- a/arch/m32r/include/asm/bugs.h
+++ b/arch/m32r/include/asm/bugs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_BUGS_H
 #define _ASM_M32R_BUGS_H
 
diff --git a/arch/m32r/include/asm/cache.h b/arch/m32r/include/asm/cache.h
index 40b3ee98..47a766a 100644
--- a/arch/m32r/include/asm/cache.h
+++ b/arch/m32r/include/asm/cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_CACHE_H
 #define _ASM_M32R_CACHE_H
 
diff --git a/arch/m32r/include/asm/cachectl.h b/arch/m32r/include/asm/cachectl.h
index 2aab8f6..12f73f6 100644
--- a/arch/m32r/include/asm/cachectl.h
+++ b/arch/m32r/include/asm/cachectl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * cachectl.h -- defines for M32R cache control system calls
  *
diff --git a/arch/m32r/include/asm/cacheflush.h b/arch/m32r/include/asm/cacheflush.h
index 8e8e045..5ad2a30 100644
--- a/arch/m32r/include/asm/cacheflush.h
+++ b/arch/m32r/include/asm/cacheflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_CACHEFLUSH_H
 #define _ASM_M32R_CACHEFLUSH_H
 
diff --git a/arch/m32r/include/asm/cmpxchg.h b/arch/m32r/include/asm/cmpxchg.h
index 23c9d05..1ccdce5 100644
--- a/arch/m32r/include/asm/cmpxchg.h
+++ b/arch/m32r/include/asm/cmpxchg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_CMPXCHG_H
 #define _ASM_M32R_CMPXCHG_H
 
diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h
index aff3ae8..4abfc07 100644
--- a/arch/m32r/include/asm/dma-mapping.h
+++ b/arch/m32r/include/asm/dma-mapping.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_DMA_MAPPING_H
 #define _ASM_M32R_DMA_MAPPING_H
 
diff --git a/arch/m32r/include/asm/dma.h b/arch/m32r/include/asm/dma.h
index 52f6a22..661bc3b 100644
--- a/arch/m32r/include/asm/dma.h
+++ b/arch/m32r/include/asm/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_DMA_H
 #define _ASM_M32R_DMA_H
 
diff --git a/arch/m32r/include/asm/elf.h b/arch/m32r/include/asm/elf.h
index 8acc9da..576b2ff 100644
--- a/arch/m32r/include/asm/elf.h
+++ b/arch/m32r/include/asm/elf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R__ELF_H
 #define _ASM_M32R__ELF_H
 
diff --git a/arch/m32r/include/asm/emergency-restart.h b/arch/m32r/include/asm/emergency-restart.h
index 108d8c4..cca44d5 100644
--- a/arch/m32r/include/asm/emergency-restart.h
+++ b/arch/m32r/include/asm/emergency-restart.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_EMERGENCY_RESTART_H
 #define _ASM_EMERGENCY_RESTART_H
 
diff --git a/arch/m32r/include/asm/fb.h b/arch/m32r/include/asm/fb.h
index d92e99c..9a0bca2 100644
--- a/arch/m32r/include/asm/fb.h
+++ b/arch/m32r/include/asm/fb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_FB_H_
 #define _ASM_FB_H_
 
diff --git a/arch/m32r/include/asm/hardirq.h b/arch/m32r/include/asm/hardirq.h
index 5f2ac4f..10c23de 100644
--- a/arch/m32r/include/asm/hardirq.h
+++ b/arch/m32r/include/asm/hardirq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef __KERNEL__
 #ifndef __ASM_HARDIRQ_H
 #define __ASM_HARDIRQ_H
diff --git a/arch/m32r/include/asm/io.h b/arch/m32r/include/asm/io.h
index 4b0f5e0..1b653bb 100644
--- a/arch/m32r/include/asm/io.h
+++ b/arch/m32r/include/asm/io.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_IO_H
 #define _ASM_M32R_IO_H
 
diff --git a/arch/m32r/include/asm/irq.h b/arch/m32r/include/asm/irq.h
index 242028b..85b475f 100644
--- a/arch/m32r/include/asm/irq.h
+++ b/arch/m32r/include/asm/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef __KERNEL__
 #ifndef _ASM_M32R_IRQ_H
 #define _ASM_M32R_IRQ_H
diff --git a/arch/m32r/include/asm/kmap_types.h b/arch/m32r/include/asm/kmap_types.h
index 4cdb5e3..3dcba0d 100644
--- a/arch/m32r/include/asm/kmap_types.h
+++ b/arch/m32r/include/asm/kmap_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __M32R_KMAP_TYPES_H
 #define __M32R_KMAP_TYPES_H
 
diff --git a/arch/m32r/include/asm/linkage.h b/arch/m32r/include/asm/linkage.h
index a9fb151..f1aee6e 100644
--- a/arch/m32r/include/asm/linkage.h
+++ b/arch/m32r/include/asm/linkage.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_LINKAGE_H
 #define __ASM_LINKAGE_H
 
diff --git a/arch/m32r/include/asm/local.h b/arch/m32r/include/asm/local.h
index 4045db3..6780680 100644
--- a/arch/m32r/include/asm/local.h
+++ b/arch/m32r/include/asm/local.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __M32R_LOCAL_H
 #define __M32R_LOCAL_H
 
diff --git a/arch/m32r/include/asm/m32102.h b/arch/m32r/include/asm/m32102.h
index 52807f8..f0a986f 100644
--- a/arch/m32r/include/asm/m32102.h
+++ b/arch/m32r/include/asm/m32102.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M32102_H_
 #define _M32102_H_
 
diff --git a/arch/m32r/include/asm/m32r.h b/arch/m32r/include/asm/m32r.h
index 214b44b..d27f056 100644
--- a/arch/m32r/include/asm/m32r.h
+++ b/arch/m32r/include/asm/m32r.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_M32R_H_
 #define _ASM_M32R_M32R_H_
 
diff --git a/arch/m32r/include/asm/m32r_mp_fpga.h b/arch/m32r/include/asm/m32r_mp_fpga.h
index 976d2b9..8eeaa9a 100644
--- a/arch/m32r/include/asm/m32r_mp_fpga.h
+++ b/arch/m32r/include/asm/m32r_mp_fpga.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_M32R_MP_FPGA_
 #define _ASM_M32R_M32R_MP_FPGA_
 
diff --git a/arch/m32r/include/asm/mc146818rtc.h b/arch/m32r/include/asm/mc146818rtc.h
index aa1b7bf..4effa47 100644
--- a/arch/m32r/include/asm/mc146818rtc.h
+++ b/arch/m32r/include/asm/mc146818rtc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Machine dependent access functions for RTC registers.
  */
diff --git a/arch/m32r/include/asm/mmu.h b/arch/m32r/include/asm/mmu.h
index 150cb92..34bcccd 100644
--- a/arch/m32r/include/asm/mmu.h
+++ b/arch/m32r/include/asm/mmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_MMU_H
 #define _ASM_M32R_MMU_H
 
diff --git a/arch/m32r/include/asm/mmu_context.h b/arch/m32r/include/asm/mmu_context.h
index 1230b70..8a499d0 100644
--- a/arch/m32r/include/asm/mmu_context.h
+++ b/arch/m32r/include/asm/mmu_context.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_MMU_CONTEXT_H
 #define _ASM_M32R_MMU_CONTEXT_H
 #ifdef __KERNEL__
diff --git a/arch/m32r/include/asm/mmzone.h b/arch/m32r/include/asm/mmzone.h
index 115ced3..568946c 100644
--- a/arch/m32r/include/asm/mmzone.h
+++ b/arch/m32r/include/asm/mmzone.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Written by Pat Gaughen (gone@us.ibm.com) Mar 2002
  *
diff --git a/arch/m32r/include/asm/page.h b/arch/m32r/include/asm/page.h
index 725ede8..fe4e38b 100644
--- a/arch/m32r/include/asm/page.h
+++ b/arch/m32r/include/asm/page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_PAGE_H
 #define _ASM_M32R_PAGE_H
 
diff --git a/arch/m32r/include/asm/pci.h b/arch/m32r/include/asm/pci.h
index 07d3834..cbcb28b 100644
--- a/arch/m32r/include/asm/pci.h
+++ b/arch/m32r/include/asm/pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_PCI_H
 #define _ASM_M32R_PCI_H
 
diff --git a/arch/m32r/include/asm/percpu.h b/arch/m32r/include/asm/percpu.h
index e316930..41e1680 100644
--- a/arch/m32r/include/asm/percpu.h
+++ b/arch/m32r/include/asm/percpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ARCH_M32R_PERCPU__
 #define __ARCH_M32R_PERCPU__
 
diff --git a/arch/m32r/include/asm/pgalloc.h b/arch/m32r/include/asm/pgalloc.h
index 2d55a06..eed2cad 100644
--- a/arch/m32r/include/asm/pgalloc.h
+++ b/arch/m32r/include/asm/pgalloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_PGALLOC_H
 #define _ASM_M32R_PGALLOC_H
 
diff --git a/arch/m32r/include/asm/pgtable-2level.h b/arch/m32r/include/asm/pgtable-2level.h
index 421e6ba..d7ab1e9 100644
--- a/arch/m32r/include/asm/pgtable-2level.h
+++ b/arch/m32r/include/asm/pgtable-2level.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_PGTABLE_2LEVEL_H
 #define _ASM_M32R_PGTABLE_2LEVEL_H
 #ifdef __KERNEL__
diff --git a/arch/m32r/include/asm/pgtable.h b/arch/m32r/include/asm/pgtable.h
index 8c1fb90..eb7f905 100644
--- a/arch/m32r/include/asm/pgtable.h
+++ b/arch/m32r/include/asm/pgtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_PGTABLE_H
 #define _ASM_M32R_PGTABLE_H
 
diff --git a/arch/m32r/include/asm/rtc.h b/arch/m32r/include/asm/rtc.h
index 0340633..a94cf1e 100644
--- a/arch/m32r/include/asm/rtc.h
+++ b/arch/m32r/include/asm/rtc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __RTC_H__
 #define __RTC_H__
 
diff --git a/arch/m32r/include/asm/s1d13806.h b/arch/m32r/include/asm/s1d13806.h
index 248d36a..79e98a2 100644
--- a/arch/m32r/include/asm/s1d13806.h
+++ b/arch/m32r/include/asm/s1d13806.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 //----------------------------------------------------------------------------
 //
 //  File generated by S1D13806CFG.EXE
diff --git a/arch/m32r/include/asm/segment.h b/arch/m32r/include/asm/segment.h
index 42b11ae..4095f14 100644
--- a/arch/m32r/include/asm/segment.h
+++ b/arch/m32r/include/asm/segment.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_SEGMENT_H
 #define _ASM_M32R_SEGMENT_H
 
diff --git a/arch/m32r/include/asm/serial.h b/arch/m32r/include/asm/serial.h
index 5ac244c..b1375c8 100644
--- a/arch/m32r/include/asm/serial.h
+++ b/arch/m32r/include/asm/serial.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_SERIAL_H
 #define _ASM_M32R_SERIAL_H
 
diff --git a/arch/m32r/include/asm/setup.h b/arch/m32r/include/asm/setup.h
index bbe59a9..71b4d65 100644
--- a/arch/m32r/include/asm/setup.h
+++ b/arch/m32r/include/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_SETUP_H
 #define _ASM_M32R_SETUP_H
 
diff --git a/arch/m32r/include/asm/shmparam.h b/arch/m32r/include/asm/shmparam.h
index 35986d8..1af73d9 100644
--- a/arch/m32r/include/asm/shmparam.h
+++ b/arch/m32r/include/asm/shmparam.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_SHMPARAM_H
 #define _ASM_M32R_SHMPARAM_H
 
diff --git a/arch/m32r/include/asm/signal.h b/arch/m32r/include/asm/signal.h
index ed3ded6..8bf5795 100644
--- a/arch/m32r/include/asm/signal.h
+++ b/arch/m32r/include/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_SIGNAL_H
 #define _ASM_M32R_SIGNAL_H
 
diff --git a/arch/m32r/include/asm/smp.h b/arch/m32r/include/asm/smp.h
index c689b82..763f227 100644
--- a/arch/m32r/include/asm/smp.h
+++ b/arch/m32r/include/asm/smp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_SMP_H
 #define _ASM_M32R_SMP_H
 
diff --git a/arch/m32r/include/asm/spinlock.h b/arch/m32r/include/asm/spinlock.h
index a568255..604af84 100644
--- a/arch/m32r/include/asm/spinlock.h
+++ b/arch/m32r/include/asm/spinlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_SPINLOCK_H
 #define _ASM_M32R_SPINLOCK_H
 
diff --git a/arch/m32r/include/asm/spinlock_types.h b/arch/m32r/include/asm/spinlock_types.h
index 92e2767..bb0d17b 100644
--- a/arch/m32r/include/asm/spinlock_types.h
+++ b/arch/m32r/include/asm/spinlock_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_SPINLOCK_TYPES_H
 #define _ASM_M32R_SPINLOCK_TYPES_H
 
diff --git a/arch/m32r/include/asm/string.h b/arch/m32r/include/asm/string.h
index e61e2b0..a9ea3b6 100644
--- a/arch/m32r/include/asm/string.h
+++ b/arch/m32r/include/asm/string.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_STRING_H
 #define _ASM_M32R_STRING_H
 
diff --git a/arch/m32r/include/asm/syscall.h b/arch/m32r/include/asm/syscall.h
index 25f316f..22c8516 100644
--- a/arch/m32r/include/asm/syscall.h
+++ b/arch/m32r/include/asm/syscall.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_SYSCALL_H
 #define _ASM_M32R_SYSCALL_H
 
diff --git a/arch/m32r/include/asm/termios.h b/arch/m32r/include/asm/termios.h
index 680898f..40274b8 100644
--- a/arch/m32r/include/asm/termios.h
+++ b/arch/m32r/include/asm/termios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M32R_TERMIOS_H
 #define _M32R_TERMIOS_H
 
diff --git a/arch/m32r/include/asm/thread_info.h b/arch/m32r/include/asm/thread_info.h
index f630d9c..b3a215b 100644
--- a/arch/m32r/include/asm/thread_info.h
+++ b/arch/m32r/include/asm/thread_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_THREAD_INFO_H
 #define _ASM_M32R_THREAD_INFO_H
 
diff --git a/arch/m32r/include/asm/timex.h b/arch/m32r/include/asm/timex.h
index bb9fe4f..a4f9f85 100644
--- a/arch/m32r/include/asm/timex.h
+++ b/arch/m32r/include/asm/timex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_TIMEX_H
 #define _ASM_M32R_TIMEX_H
 
diff --git a/arch/m32r/include/asm/tlb.h b/arch/m32r/include/asm/tlb.h
index c7ebd8d..3576f88 100644
--- a/arch/m32r/include/asm/tlb.h
+++ b/arch/m32r/include/asm/tlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M32R_TLB_H
 #define _M32R_TLB_H
 
diff --git a/arch/m32r/include/asm/tlbflush.h b/arch/m32r/include/asm/tlbflush.h
index 92614b0..f6c7237 100644
--- a/arch/m32r/include/asm/tlbflush.h
+++ b/arch/m32r/include/asm/tlbflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_TLBFLUSH_H
 #define _ASM_M32R_TLBFLUSH_H
 
diff --git a/arch/m32r/include/asm/topology.h b/arch/m32r/include/asm/topology.h
index d607eb3..ee79404 100644
--- a/arch/m32r/include/asm/topology.h
+++ b/arch/m32r/include/asm/topology.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_TOPOLOGY_H
 #define _ASM_M32R_TOPOLOGY_H
 
diff --git a/arch/m32r/include/asm/types.h b/arch/m32r/include/asm/types.h
index 04a44c6..fce0bf6 100644
--- a/arch/m32r/include/asm/types.h
+++ b/arch/m32r/include/asm/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_TYPES_H
 #define _ASM_M32R_TYPES_H
 
diff --git a/arch/m32r/include/asm/uaccess.h b/arch/m32r/include/asm/uaccess.h
index 496c471..9d89bc3 100644
--- a/arch/m32r/include/asm/uaccess.h
+++ b/arch/m32r/include/asm/uaccess.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_UACCESS_H
 #define _ASM_M32R_UACCESS_H
 
diff --git a/arch/m32r/include/asm/ucontext.h b/arch/m32r/include/asm/ucontext.h
index 0932474..5f9de37 100644
--- a/arch/m32r/include/asm/ucontext.h
+++ b/arch/m32r/include/asm/ucontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_UCONTEXT_H
 #define _ASM_M32R_UCONTEXT_H
 
diff --git a/arch/m32r/include/asm/unaligned.h b/arch/m32r/include/asm/unaligned.h
index 377eb20..5981361 100644
--- a/arch/m32r/include/asm/unaligned.h
+++ b/arch/m32r/include/asm/unaligned.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_UNALIGNED_H
 #define _ASM_M32R_UNALIGNED_H
 
diff --git a/arch/m32r/include/asm/unistd.h b/arch/m32r/include/asm/unistd.h
index de60253..dee4c19 100644
--- a/arch/m32r/include/asm/unistd.h
+++ b/arch/m32r/include/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_UNISTD_H
 #define _ASM_M32R_UNISTD_H
 
diff --git a/arch/m32r/include/asm/user.h b/arch/m32r/include/asm/user.h
index 03b3c11..489b60d4 100644
--- a/arch/m32r/include/asm/user.h
+++ b/arch/m32r/include/asm/user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_USER_H
 #define _ASM_M32R_USER_H
 
diff --git a/arch/m32r/include/asm/vga.h b/arch/m32r/include/asm/vga.h
index a1b6306..783d5bf 100644
--- a/arch/m32r/include/asm/vga.h
+++ b/arch/m32r/include/asm/vga.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_VGA_H
 #define _ASM_M32R_VGA_H
 
diff --git a/arch/m32r/include/asm/xor.h b/arch/m32r/include/asm/xor.h
index 6d52525..a4d5467 100644
--- a/arch/m32r/include/asm/xor.h
+++ b/arch/m32r/include/asm/xor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_XOR_H
 #define _ASM_M32R_XOR_H