diff --git a/include/acpi/acpi_io.h b/include/acpi/acpi_io.h
index 303315b..d0633fc 100644
--- a/include/acpi/acpi_io.h
+++ b/include/acpi/acpi_io.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ACPI_IO_H_
 #define _ACPI_IO_H_
 
diff --git a/include/acpi/acpi_numa.h b/include/acpi/acpi_numa.h
index 1e3a74f..fdebcfc 100644
--- a/include/acpi/acpi_numa.h
+++ b/include/acpi/acpi_numa.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ACPI_NUMA_H
 #define __ACPI_NUMA_H
 
diff --git a/include/acpi/apei.h b/include/acpi/apei.h
index c46694a..1797e81 100644
--- a/include/acpi/apei.h
+++ b/include/acpi/apei.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * apei.h - ACPI Platform Error Interface
  */
diff --git a/include/acpi/button.h b/include/acpi/button.h
index 1cad8b2..3a2b853 100644
--- a/include/acpi/button.h
+++ b/include/acpi/button.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ACPI_BUTTON_H
 #define ACPI_BUTTON_H
 
diff --git a/include/acpi/ghes.h b/include/acpi/ghes.h
index 9061c5c..8feb0c8 100644
--- a/include/acpi/ghes.h
+++ b/include/acpi/ghes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef GHES_H
 #define GHES_H
 
diff --git a/include/acpi/pdc_intel.h b/include/acpi/pdc_intel.h
index 552637b..967c552 100644
--- a/include/acpi/pdc_intel.h
+++ b/include/acpi/pdc_intel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 /* _PDC bit definition for Intel processors */
 
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index c1ba00f..d591bb7 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ACPI_PROCESSOR_H
 #define __ACPI_PROCESSOR_H
 
diff --git a/include/acpi/reboot.h b/include/acpi/reboot.h
index 0419184..14122fc 100644
--- a/include/acpi/reboot.h
+++ b/include/acpi/reboot.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ACPI_REBOOT_H
 #define __ACPI_REBOOT_H
 
diff --git a/include/acpi/video.h b/include/acpi/video.h
index bfe484d..db8548f 100644
--- a/include/acpi/video.h
+++ b/include/acpi/video.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ACPI_VIDEO_H
 #define __ACPI_VIDEO_H
 
diff --git a/include/asm-generic/4level-fixup.h b/include/asm-generic/4level-fixup.h
index 928fd66..89f3b03 100644
--- a/include/asm-generic/4level-fixup.h
+++ b/include/asm-generic/4level-fixup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _4LEVEL_FIXUP_H
 #define _4LEVEL_FIXUP_H
 
diff --git a/include/asm-generic/5level-fixup.h b/include/asm-generic/5level-fixup.h
index b5ca82d..dfbd9d9 100644
--- a/include/asm-generic/5level-fixup.h
+++ b/include/asm-generic/5level-fixup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _5LEVEL_FIXUP_H
 #define _5LEVEL_FIXUP_H
 
diff --git a/include/asm-generic/asm-prototypes.h b/include/asm-generic/asm-prototypes.h
index 939869c..2fa2bc2 100644
--- a/include/asm-generic/asm-prototypes.h
+++ b/include/asm-generic/asm-prototypes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/bitops.h>
 #undef __memset
 extern void *__memset(void *, int, __kernel_size_t);
diff --git a/include/asm-generic/atomic-long.h b/include/asm-generic/atomic-long.h
index 288cc9e..49be4bb 100644
--- a/include/asm-generic/atomic-long.h
+++ b/include/asm-generic/atomic-long.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_ATOMIC_LONG_H
 #define _ASM_GENERIC_ATOMIC_LONG_H
 /*
diff --git a/include/asm-generic/audit_change_attr.h b/include/asm-generic/audit_change_attr.h
index a186553..3316708 100644
--- a/include/asm-generic/audit_change_attr.h
+++ b/include/asm-generic/audit_change_attr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef __NR_chmod
 __NR_chmod,
 #endif
diff --git a/include/asm-generic/audit_dir_write.h b/include/asm-generic/audit_dir_write.h
index 7b61db4..8fb83b4 100644
--- a/include/asm-generic/audit_dir_write.h
+++ b/include/asm-generic/audit_dir_write.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef __NR_rename
 __NR_rename,
 #endif
diff --git a/include/asm-generic/audit_read.h b/include/asm-generic/audit_read.h
index 3b249cb..7bb7b5a 100644
--- a/include/asm-generic/audit_read.h
+++ b/include/asm-generic/audit_read.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef __NR_readlink
 __NR_readlink,
 #endif
diff --git a/include/asm-generic/audit_write.h b/include/asm-generic/audit_write.h
index 274575d..dfc52b3 100644
--- a/include/asm-generic/audit_write.h
+++ b/include/asm-generic/audit_write.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm-generic/audit_dir_write.h>
 __NR_acct,
 #ifdef __NR_swapon
diff --git a/include/asm-generic/bitops.h b/include/asm-generic/bitops.h
index dcdcacf..bfc96bf 100644
--- a/include/asm-generic/bitops.h
+++ b/include/asm-generic/bitops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_BITOPS_H
 #define __ASM_GENERIC_BITOPS_H
 
diff --git a/include/asm-generic/bitops/__ffs.h b/include/asm-generic/bitops/__ffs.h
index 937d7c4..39e56e1 100644
--- a/include/asm-generic/bitops/__ffs.h
+++ b/include/asm-generic/bitops/__ffs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS___FFS_H_
 #define _ASM_GENERIC_BITOPS___FFS_H_
 
diff --git a/include/asm-generic/bitops/__fls.h b/include/asm-generic/bitops/__fls.h
index a60a7cc..03f721a 100644
--- a/include/asm-generic/bitops/__fls.h
+++ b/include/asm-generic/bitops/__fls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS___FLS_H_
 #define _ASM_GENERIC_BITOPS___FLS_H_
 
diff --git a/include/asm-generic/bitops/arch_hweight.h b/include/asm-generic/bitops/arch_hweight.h
index 6a211f4..c2705e1 100644
--- a/include/asm-generic/bitops/arch_hweight.h
+++ b/include/asm-generic/bitops/arch_hweight.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_ARCH_HWEIGHT_H_
 #define _ASM_GENERIC_BITOPS_ARCH_HWEIGHT_H_
 
diff --git a/include/asm-generic/bitops/atomic.h b/include/asm-generic/bitops/atomic.h
index 4967351..04deffa 100644
--- a/include/asm-generic/bitops/atomic.h
+++ b/include/asm-generic/bitops/atomic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_ATOMIC_H_
 #define _ASM_GENERIC_BITOPS_ATOMIC_H_
 
diff --git a/include/asm-generic/bitops/builtin-__ffs.h b/include/asm-generic/bitops/builtin-__ffs.h
index 90041e3..87024da 100644
--- a/include/asm-generic/bitops/builtin-__ffs.h
+++ b/include/asm-generic/bitops/builtin-__ffs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_BUILTIN___FFS_H_
 #define _ASM_GENERIC_BITOPS_BUILTIN___FFS_H_
 
diff --git a/include/asm-generic/bitops/builtin-__fls.h b/include/asm-generic/bitops/builtin-__fls.h
index 0248f38..43a5aa9 100644
--- a/include/asm-generic/bitops/builtin-__fls.h
+++ b/include/asm-generic/bitops/builtin-__fls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_BUILTIN___FLS_H_
 #define _ASM_GENERIC_BITOPS_BUILTIN___FLS_H_
 
diff --git a/include/asm-generic/bitops/builtin-ffs.h b/include/asm-generic/bitops/builtin-ffs.h
index 0648258..458c85e 100644
--- a/include/asm-generic/bitops/builtin-ffs.h
+++ b/include/asm-generic/bitops/builtin-ffs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_BUILTIN_FFS_H_
 #define _ASM_GENERIC_BITOPS_BUILTIN_FFS_H_
 
diff --git a/include/asm-generic/bitops/builtin-fls.h b/include/asm-generic/bitops/builtin-fls.h
index eda652d..62daf94 100644
--- a/include/asm-generic/bitops/builtin-fls.h
+++ b/include/asm-generic/bitops/builtin-fls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_BUILTIN_FLS_H_
 #define _ASM_GENERIC_BITOPS_BUILTIN_FLS_H_
 
diff --git a/include/asm-generic/bitops/const_hweight.h b/include/asm-generic/bitops/const_hweight.h
index 0a7e066..149faee 100644
--- a/include/asm-generic/bitops/const_hweight.h
+++ b/include/asm-generic/bitops/const_hweight.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_CONST_HWEIGHT_H_
 #define _ASM_GENERIC_BITOPS_CONST_HWEIGHT_H_
 
diff --git a/include/asm-generic/bitops/ext2-atomic-setbit.h b/include/asm-generic/bitops/ext2-atomic-setbit.h
index 5a09978..b041cbf 100644
--- a/include/asm-generic/bitops/ext2-atomic-setbit.h
+++ b/include/asm-generic/bitops/ext2-atomic-setbit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_EXT2_ATOMIC_SETBIT_H_
 #define _ASM_GENERIC_BITOPS_EXT2_ATOMIC_SETBIT_H_
 
diff --git a/include/asm-generic/bitops/ext2-atomic.h b/include/asm-generic/bitops/ext2-atomic.h
index 87f0f10..0cfc318 100644
--- a/include/asm-generic/bitops/ext2-atomic.h
+++ b/include/asm-generic/bitops/ext2-atomic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_EXT2_ATOMIC_H_
 #define _ASM_GENERIC_BITOPS_EXT2_ATOMIC_H_
 
diff --git a/include/asm-generic/bitops/ffs.h b/include/asm-generic/bitops/ffs.h
index fbbb43a..e81868b 100644
--- a/include/asm-generic/bitops/ffs.h
+++ b/include/asm-generic/bitops/ffs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_FFS_H_
 #define _ASM_GENERIC_BITOPS_FFS_H_
 
diff --git a/include/asm-generic/bitops/ffz.h b/include/asm-generic/bitops/ffz.h
index 6744bd4..0d01008 100644
--- a/include/asm-generic/bitops/ffz.h
+++ b/include/asm-generic/bitops/ffz.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_FFZ_H_
 #define _ASM_GENERIC_BITOPS_FFZ_H_
 
diff --git a/include/asm-generic/bitops/find.h b/include/asm-generic/bitops/find.h
index 998d4d5..1ba611e 100644
--- a/include/asm-generic/bitops/find.h
+++ b/include/asm-generic/bitops/find.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_FIND_H_
 #define _ASM_GENERIC_BITOPS_FIND_H_
 
diff --git a/include/asm-generic/bitops/fls.h b/include/asm-generic/bitops/fls.h
index 0576d1f..753aeca 100644
--- a/include/asm-generic/bitops/fls.h
+++ b/include/asm-generic/bitops/fls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_FLS_H_
 #define _ASM_GENERIC_BITOPS_FLS_H_
 
diff --git a/include/asm-generic/bitops/fls64.h b/include/asm-generic/bitops/fls64.h
index b097cf8..866f2b2 100644
--- a/include/asm-generic/bitops/fls64.h
+++ b/include/asm-generic/bitops/fls64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_FLS64_H_
 #define _ASM_GENERIC_BITOPS_FLS64_H_
 
diff --git a/include/asm-generic/bitops/hweight.h b/include/asm-generic/bitops/hweight.h
index a94d651..6bf1bba 100644
--- a/include/asm-generic/bitops/hweight.h
+++ b/include/asm-generic/bitops/hweight.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_HWEIGHT_H_
 #define _ASM_GENERIC_BITOPS_HWEIGHT_H_
 
diff --git a/include/asm-generic/bitops/le.h b/include/asm-generic/bitops/le.h
index 6173154..188d3eb 100644
--- a/include/asm-generic/bitops/le.h
+++ b/include/asm-generic/bitops/le.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_LE_H_
 #define _ASM_GENERIC_BITOPS_LE_H_
 
diff --git a/include/asm-generic/bitops/lock.h b/include/asm-generic/bitops/lock.h
index 8ef0ccb..bc39757 100644
--- a/include/asm-generic/bitops/lock.h
+++ b/include/asm-generic/bitops/lock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_LOCK_H_
 #define _ASM_GENERIC_BITOPS_LOCK_H_
 
diff --git a/include/asm-generic/bitops/non-atomic.h b/include/asm-generic/bitops/non-atomic.h
index 697cc2b..7e10c4b 100644
--- a/include/asm-generic/bitops/non-atomic.h
+++ b/include/asm-generic/bitops/non-atomic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_NON_ATOMIC_H_
 #define _ASM_GENERIC_BITOPS_NON_ATOMIC_H_
 
diff --git a/include/asm-generic/bitops/sched.h b/include/asm-generic/bitops/sched.h
index 604fab7..86470cf 100644
--- a/include/asm-generic/bitops/sched.h
+++ b/include/asm-generic/bitops/sched.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_SCHED_H_
 #define _ASM_GENERIC_BITOPS_SCHED_H_
 
diff --git a/include/asm-generic/bitsperlong.h b/include/asm-generic/bitsperlong.h
index d1d70aa1..3905c1c 100644
--- a/include/asm-generic/bitsperlong.h
+++ b/include/asm-generic/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_BITS_PER_LONG
 #define __ASM_GENERIC_BITS_PER_LONG
 
diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
index 8719135..af2cc94 100644
--- a/include/asm-generic/bug.h
+++ b/include/asm-generic/bug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BUG_H
 #define _ASM_GENERIC_BUG_H
 
diff --git a/include/asm-generic/bugs.h b/include/asm-generic/bugs.h
index 6c4f62e..6902183 100644
--- a/include/asm-generic/bugs.h
+++ b/include/asm-generic/bugs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_BUGS_H
 #define __ASM_GENERIC_BUGS_H
 /*
diff --git a/include/asm-generic/cache.h b/include/asm-generic/cache.h
index 1bfcfe5..60386e1 100644
--- a/include/asm-generic/cache.h
+++ b/include/asm-generic/cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_CACHE_H
 #define __ASM_GENERIC_CACHE_H
 /*
diff --git a/include/asm-generic/cacheflush.h b/include/asm-generic/cacheflush.h
index 87bc536..0dd47a6 100644
--- a/include/asm-generic/cacheflush.h
+++ b/include/asm-generic/cacheflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_CACHEFLUSH_H
 #define __ASM_CACHEFLUSH_H
 
diff --git a/include/asm-generic/checksum.h b/include/asm-generic/checksum.h
index 3150cbd..34785c0 100644
--- a/include/asm-generic/checksum.h
+++ b/include/asm-generic/checksum.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_CHECKSUM_H
 #define __ASM_GENERIC_CHECKSUM_H
 
diff --git a/include/asm-generic/cmpxchg-local.h b/include/asm-generic/cmpxchg-local.h
index 70bef78..f17f14f 100644
--- a/include/asm-generic/cmpxchg-local.h
+++ b/include/asm-generic/cmpxchg-local.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_CMPXCHG_LOCAL_H
 #define __ASM_GENERIC_CMPXCHG_LOCAL_H
 
diff --git a/include/asm-generic/cmpxchg.h b/include/asm-generic/cmpxchg.h
index e5f9080..9a24510 100644
--- a/include/asm-generic/cmpxchg.h
+++ b/include/asm-generic/cmpxchg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Generic UP xchg and cmpxchg using interrupt disablement.  Does not
  * support SMP.
diff --git a/include/asm-generic/current.h b/include/asm-generic/current.h
index 5e86f6a..3a2e224 100644
--- a/include/asm-generic/current.h
+++ b/include/asm-generic/current.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_CURRENT_H
 #define __ASM_GENERIC_CURRENT_H
 
diff --git a/include/asm-generic/delay.h b/include/asm-generic/delay.h
index 0f79054..e448ac6 100644
--- a/include/asm-generic/delay.h
+++ b/include/asm-generic/delay.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_DELAY_H
 #define __ASM_GENERIC_DELAY_H
 
diff --git a/include/asm-generic/div64.h b/include/asm-generic/div64.h
index 163f779..d201306 100644
--- a/include/asm-generic/div64.h
+++ b/include/asm-generic/div64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_DIV64_H
 #define _ASM_GENERIC_DIV64_H
 /*
diff --git a/include/asm-generic/dma-contiguous.h b/include/asm-generic/dma-contiguous.h
index 292c571..f24b0f9 100644
--- a/include/asm-generic/dma-contiguous.h
+++ b/include/asm-generic/dma-contiguous.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_DMA_CONTIGUOUS_H
 #define _ASM_GENERIC_DMA_CONTIGUOUS_H
 
diff --git a/include/asm-generic/dma.h b/include/asm-generic/dma.h
index 9dfc3a7f..43d0c8a 100644
--- a/include/asm-generic/dma.h
+++ b/include/asm-generic/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_DMA_H
 #define __ASM_GENERIC_DMA_H
 /*
diff --git a/include/asm-generic/early_ioremap.h b/include/asm-generic/early_ioremap.h
index 2edef8d..9def22e 100644
--- a/include/asm-generic/early_ioremap.h
+++ b/include/asm-generic/early_ioremap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_EARLY_IOREMAP_H_
 #define _ASM_EARLY_IOREMAP_H_
 
diff --git a/include/asm-generic/emergency-restart.h b/include/asm-generic/emergency-restart.h
index 0d68a1e..445de38 100644
--- a/include/asm-generic/emergency-restart.h
+++ b/include/asm-generic/emergency-restart.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_EMERGENCY_RESTART_H
 #define _ASM_GENERIC_EMERGENCY_RESTART_H
 
diff --git a/include/asm-generic/extable.h b/include/asm-generic/extable.h
index ca14c66..f9618bd 100644
--- a/include/asm-generic/extable.h
+++ b/include/asm-generic/extable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_EXTABLE_H
 #define __ASM_GENERIC_EXTABLE_H
 
diff --git a/include/asm-generic/fb.h b/include/asm-generic/fb.h
index fe8ca7f..f9f1810 100644
--- a/include/asm-generic/fb.h
+++ b/include/asm-generic/fb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_FB_H_
 #define __ASM_GENERIC_FB_H_
 #include <linux/fb.h>
diff --git a/include/asm-generic/futex.h b/include/asm-generic/futex.h
index f0d8b1c..fcb61b4 100644
--- a/include/asm-generic/futex.h
+++ b/include/asm-generic/futex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_FUTEX_H
 #define _ASM_GENERIC_FUTEX_H
 
diff --git a/include/asm-generic/getorder.h b/include/asm-generic/getorder.h
index 65e4468..c64bea7 100644
--- a/include/asm-generic/getorder.h
+++ b/include/asm-generic/getorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_GETORDER_H
 #define __ASM_GENERIC_GETORDER_H
 
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index 8ca627d..19eadac 100644
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_GPIO_H
 #define _ASM_GENERIC_GPIO_H
 
diff --git a/include/asm-generic/hardirq.h b/include/asm-generic/hardirq.h
index 04d0a97..d14214d 100644
--- a/include/asm-generic/hardirq.h
+++ b/include/asm-generic/hardirq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_HARDIRQ_H
 #define __ASM_GENERIC_HARDIRQ_H
 
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 540354f..9d0cde8 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_HUGETLB_H
 #define _ASM_GENERIC_HUGETLB_H
 
diff --git a/include/asm-generic/ide_iops.h b/include/asm-generic/ide_iops.h
index 1b91d06..81dfa3e 100644
--- a/include/asm-generic/ide_iops.h
+++ b/include/asm-generic/ide_iops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Generic I/O and MEMIO string operations.  */
 
 #define __ide_insw	insw
diff --git a/include/asm-generic/int-ll64.h b/include/asm-generic/int-ll64.h
index 4cd8485..ffb68d6 100644
--- a/include/asm-generic/int-ll64.h
+++ b/include/asm-generic/int-ll64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * asm-generic/int-ll64.h
  *
diff --git a/include/asm-generic/ioctl.h b/include/asm-generic/ioctl.h
index 297fb0d..9fda9ed 100644
--- a/include/asm-generic/ioctl.h
+++ b/include/asm-generic/ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_IOCTL_H
 #define _ASM_GENERIC_IOCTL_H
 
diff --git a/include/asm-generic/iomap.h b/include/asm-generic/iomap.h
index 650fede..5b63b94 100644
--- a/include/asm-generic/iomap.h
+++ b/include/asm-generic/iomap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __GENERIC_IO_H
 #define __GENERIC_IO_H
 
diff --git a/include/asm-generic/irq.h b/include/asm-generic/irq.h
index b90ec0b..da21de9 100644
--- a/include/asm-generic/irq.h
+++ b/include/asm-generic/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_IRQ_H
 #define __ASM_GENERIC_IRQ_H
 
diff --git a/include/asm-generic/irq_work.h b/include/asm-generic/irq_work.h
index a44f452..d5dce06 100644
--- a/include/asm-generic/irq_work.h
+++ b/include/asm-generic/irq_work.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_IRQ_WORK_H
 #define __ASM_IRQ_WORK_H
 
diff --git a/include/asm-generic/irqflags.h b/include/asm-generic/irqflags.h
index 1f40d002..19ccbf4 100644
--- a/include/asm-generic/irqflags.h
+++ b/include/asm-generic/irqflags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_IRQFLAGS_H
 #define __ASM_GENERIC_IRQFLAGS_H
 
diff --git a/include/asm-generic/kdebug.h b/include/asm-generic/kdebug.h
index d181449..2b10b31 100644
--- a/include/asm-generic/kdebug.h
+++ b/include/asm-generic/kdebug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_KDEBUG_H
 #define _ASM_GENERIC_KDEBUG_H
 
diff --git a/include/asm-generic/kmap_types.h b/include/asm-generic/kmap_types.h
index 90f99c7..9f95b7b 100644
--- a/include/asm-generic/kmap_types.h
+++ b/include/asm-generic/kmap_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_KMAP_TYPES_H
 #define _ASM_GENERIC_KMAP_TYPES_H
 
diff --git a/include/asm-generic/kprobes.h b/include/asm-generic/kprobes.h
index 57af9f2..4a98208 100644
--- a/include/asm-generic/kprobes.h
+++ b/include/asm-generic/kprobes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_KPROBES_H
 #define _ASM_GENERIC_KPROBES_H
 
diff --git a/include/asm-generic/kvm_para.h b/include/asm-generic/kvm_para.h
index fa25bec..18c6abe 100644
--- a/include/asm-generic/kvm_para.h
+++ b/include/asm-generic/kvm_para.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_KVM_PARA_H
 #define _ASM_GENERIC_KVM_PARA_H
 
diff --git a/include/asm-generic/local.h b/include/asm-generic/local.h
index 9ceb03b..fca7f1d 100644
--- a/include/asm-generic/local.h
+++ b/include/asm-generic/local.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_LOCAL_H
 #define _ASM_GENERIC_LOCAL_H
 
diff --git a/include/asm-generic/local64.h b/include/asm-generic/local64.h
index 5980002..765be0b 100644
--- a/include/asm-generic/local64.h
+++ b/include/asm-generic/local64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_LOCAL64_H
 #define _ASM_GENERIC_LOCAL64_H
 
diff --git a/include/asm-generic/memory_model.h b/include/asm-generic/memory_model.h
index 5148150..7637fb4 100644
--- a/include/asm-generic/memory_model.h
+++ b/include/asm-generic/memory_model.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MEMORY_MODEL_H
 #define __ASM_MEMORY_MODEL_H
 
diff --git a/include/asm-generic/mm_hooks.h b/include/asm-generic/mm_hooks.h
index 41e5b67..ea189d8 100644
--- a/include/asm-generic/mm_hooks.h
+++ b/include/asm-generic/mm_hooks.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Define generic no-op hooks for arch_dup_mmap, arch_exit_mmap
  * and arch_unmap to be included in asm-FOO/mmu_context.h for any
diff --git a/include/asm-generic/mmu.h b/include/asm-generic/mmu.h
index 0ed3f1c..0618380 100644
--- a/include/asm-generic/mmu.h
+++ b/include/asm-generic/mmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_MMU_H
 #define __ASM_GENERIC_MMU_H
 
diff --git a/include/asm-generic/mmu_context.h b/include/asm-generic/mmu_context.h
index a7eec91..6be9106 100644
--- a/include/asm-generic/mmu_context.h
+++ b/include/asm-generic/mmu_context.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_MMU_CONTEXT_H
 #define __ASM_GENERIC_MMU_CONTEXT_H
 
diff --git a/include/asm-generic/module.h b/include/asm-generic/module.h
index 14dc41d..98e1541 100644
--- a/include/asm-generic/module.h
+++ b/include/asm-generic/module.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_MODULE_H
 #define __ASM_GENERIC_MODULE_H
 
diff --git a/include/asm-generic/msi.h b/include/asm-generic/msi.h
index 61c58d8..e6795f0 100644
--- a/include/asm-generic/msi.h
+++ b/include/asm-generic/msi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_MSI_H
 #define __ASM_GENERIC_MSI_H
 
diff --git a/include/asm-generic/page.h b/include/asm-generic/page.h
index 67cfb7d..27bf337 100644
--- a/include/asm-generic/page.h
+++ b/include/asm-generic/page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_PAGE_H
 #define __ASM_GENERIC_PAGE_H
 /*
diff --git a/include/asm-generic/param.h b/include/asm-generic/param.h
index 04e715b..8d3009d 100644
--- a/include/asm-generic/param.h
+++ b/include/asm-generic/param.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_PARAM_H
 #define __ASM_GENERIC_PARAM_H
 
diff --git a/include/asm-generic/parport.h b/include/asm-generic/parport.h
index 2c9f9d4..483991d 100644
--- a/include/asm-generic/parport.h
+++ b/include/asm-generic/parport.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_PARPORT_H
 #define __ASM_GENERIC_PARPORT_H
 
diff --git a/include/asm-generic/pci.h b/include/asm-generic/pci.h
index f24bc51..830d765 100644
--- a/include/asm-generic/pci.h
+++ b/include/asm-generic/pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/asm-generic/pci.h
  *
diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h
index 976f8ac..1817a84 100644
--- a/include/asm-generic/percpu.h
+++ b/include/asm-generic/percpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_PERCPU_H_
 #define _ASM_GENERIC_PERCPU_H_
 
diff --git a/include/asm-generic/pgalloc.h b/include/asm-generic/pgalloc.h
index 9e429d0..948714c 100644
--- a/include/asm-generic/pgalloc.h
+++ b/include/asm-generic/pgalloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_PGALLOC_H
 #define __ASM_GENERIC_PGALLOC_H
 /*
diff --git a/include/asm-generic/pgtable-nop4d-hack.h b/include/asm-generic/pgtable-nop4d-hack.h
index 752fb75..0c34215 100644
--- a/include/asm-generic/pgtable-nop4d-hack.h
+++ b/include/asm-generic/pgtable-nop4d-hack.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PGTABLE_NOP4D_HACK_H
 #define _PGTABLE_NOP4D_HACK_H
 
diff --git a/include/asm-generic/pgtable-nop4d.h b/include/asm-generic/pgtable-nop4d.h
index de364ec..8f22f55 100644
--- a/include/asm-generic/pgtable-nop4d.h
+++ b/include/asm-generic/pgtable-nop4d.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PGTABLE_NOP4D_H
 #define _PGTABLE_NOP4D_H
 
diff --git a/include/asm-generic/pgtable-nopmd.h b/include/asm-generic/pgtable-nopmd.h
index 725612b..f35f6e8 100644
--- a/include/asm-generic/pgtable-nopmd.h
+++ b/include/asm-generic/pgtable-nopmd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PGTABLE_NOPMD_H
 #define _PGTABLE_NOPMD_H
 
diff --git a/include/asm-generic/pgtable-nopud.h b/include/asm-generic/pgtable-nopud.h
index c2b9b96..e950b9c 100644
--- a/include/asm-generic/pgtable-nopud.h
+++ b/include/asm-generic/pgtable-nopud.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PGTABLE_NOPUD_H
 #define _PGTABLE_NOPUD_H
 
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index 8e02430..757dc6f 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_PGTABLE_H
 #define _ASM_GENERIC_PGTABLE_H
 
diff --git a/include/asm-generic/preempt.h b/include/asm-generic/preempt.h
index c1cde35..c3046c9 100644
--- a/include/asm-generic/preempt.h
+++ b/include/asm-generic/preempt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_PREEMPT_H
 #define __ASM_PREEMPT_H
 
diff --git a/include/asm-generic/qrwlock_types.h b/include/asm-generic/qrwlock_types.h
index 0abc6b6..d93573e 100644
--- a/include/asm-generic/qrwlock_types.h
+++ b/include/asm-generic/qrwlock_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_QRWLOCK_TYPES_H
 #define __ASM_GENERIC_QRWLOCK_TYPES_H
 
diff --git a/include/asm-generic/resource.h b/include/asm-generic/resource.h
index 5e752b9..8874f68 100644
--- a/include/asm-generic/resource.h
+++ b/include/asm-generic/resource.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_RESOURCE_H
 #define _ASM_GENERIC_RESOURCE_H
 
diff --git a/include/asm-generic/rwsem.h b/include/asm-generic/rwsem.h
index 6c6a214..bdbe43b 100644
--- a/include/asm-generic/rwsem.h
+++ b/include/asm-generic/rwsem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_RWSEM_H
 #define _ASM_GENERIC_RWSEM_H
 
diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h
index e5da44e..6d95769 100644
--- a/include/asm-generic/sections.h
+++ b/include/asm-generic/sections.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_SECTIONS_H_
 #define _ASM_GENERIC_SECTIONS_H_
 
diff --git a/include/asm-generic/serial.h b/include/asm-generic/serial.h
index 5e29109..ca9f7b6 100644
--- a/include/asm-generic/serial.h
+++ b/include/asm-generic/serial.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_SERIAL_H
 #define __ASM_GENERIC_SERIAL_H
 
diff --git a/include/asm-generic/set_memory.h b/include/asm-generic/set_memory.h
index 83e81f8..c86abf6 100644
--- a/include/asm-generic/set_memory.h
+++ b/include/asm-generic/set_memory.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SET_MEMORY_H
 #define __ASM_SET_MEMORY_H
 
diff --git a/include/asm-generic/signal.h b/include/asm-generic/signal.h
index d840c90..c53984f 100644
--- a/include/asm-generic/signal.h
+++ b/include/asm-generic/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_SIGNAL_H
 #define __ASM_GENERIC_SIGNAL_H
 
diff --git a/include/asm-generic/simd.h b/include/asm-generic/simd.h
index f57eb7b..d0343d5 100644
--- a/include/asm-generic/simd.h
+++ b/include/asm-generic/simd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #include <linux/hardirq.h>
 
diff --git a/include/asm-generic/spinlock.h b/include/asm-generic/spinlock.h
index 1547a03..adaf6ac 100644
--- a/include/asm-generic/spinlock.h
+++ b/include/asm-generic/spinlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_SPINLOCK_H
 #define __ASM_GENERIC_SPINLOCK_H
 /*
diff --git a/include/asm-generic/statfs.h b/include/asm-generic/statfs.h
index 4b934e9..f88dcd8 100644
--- a/include/asm-generic/statfs.h
+++ b/include/asm-generic/statfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _GENERIC_STATFS_H
 #define _GENERIC_STATFS_H
 
diff --git a/include/asm-generic/syscalls.h b/include/asm-generic/syscalls.h
index 1f74be5..933ca65 100644
--- a/include/asm-generic/syscalls.h
+++ b/include/asm-generic/syscalls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_SYSCALLS_H
 #define __ASM_GENERIC_SYSCALLS_H
 
diff --git a/include/asm-generic/termios-base.h b/include/asm-generic/termios-base.h
index 157bbf6..59c5a3b 100644
--- a/include/asm-generic/termios-base.h
+++ b/include/asm-generic/termios-base.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* termios.h: generic termios/termio user copying/translation
  */
 
diff --git a/include/asm-generic/termios.h b/include/asm-generic/termios.h
index 8c13a16..b1398d0 100644
--- a/include/asm-generic/termios.h
+++ b/include/asm-generic/termios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_TERMIOS_H
 #define _ASM_GENERIC_TERMIOS_H
 
diff --git a/include/asm-generic/timex.h b/include/asm-generic/timex.h
index b2243cb..50ba9b5 100644
--- a/include/asm-generic/timex.h
+++ b/include/asm-generic/timex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_TIMEX_H
 #define __ASM_GENERIC_TIMEX_H
 
diff --git a/include/asm-generic/tlbflush.h b/include/asm-generic/tlbflush.h
index d6d0a88..dc26692 100644
--- a/include/asm-generic/tlbflush.h
+++ b/include/asm-generic/tlbflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_TLBFLUSH_H
 #define __ASM_GENERIC_TLBFLUSH_H
 /*
diff --git a/include/asm-generic/trace_clock.h b/include/asm-generic/trace_clock.h
index 6726f1b..cbbca29 100644
--- a/include/asm-generic/trace_clock.h
+++ b/include/asm-generic/trace_clock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_TRACE_CLOCK_H
 #define _ASM_GENERIC_TRACE_CLOCK_H
 /*
diff --git a/include/asm-generic/uaccess.h b/include/asm-generic/uaccess.h
index 2e51f6e..6b2e63d 100644
--- a/include/asm-generic/uaccess.h
+++ b/include/asm-generic/uaccess.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_UACCESS_H
 #define __ASM_GENERIC_UACCESS_H
 
diff --git a/include/asm-generic/unaligned.h b/include/asm-generic/unaligned.h
index 1ac0972..374c940 100644
--- a/include/asm-generic/unaligned.h
+++ b/include/asm-generic/unaligned.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_UNALIGNED_H
 #define __ASM_GENERIC_UNALIGNED_H
 
diff --git a/include/asm-generic/unistd.h b/include/asm-generic/unistd.h
index cccc86e..cdf9042 100644
--- a/include/asm-generic/unistd.h
+++ b/include/asm-generic/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <uapi/asm-generic/unistd.h>
 #include <linux/export.h>
 
diff --git a/include/asm-generic/vga.h b/include/asm-generic/vga.h
index 36c8ff5..adf91a7 100644
--- a/include/asm-generic/vga.h
+++ b/include/asm-generic/vga.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Access to VGA videoram
  *
diff --git a/include/asm-generic/word-at-a-time.h b/include/asm-generic/word-at-a-time.h
index 011dde0..20c93f0 100644
--- a/include/asm-generic/word-at-a-time.h
+++ b/include/asm-generic/word-at-a-time.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_WORD_AT_A_TIME_H
 #define _ASM_WORD_AT_A_TIME_H
 
diff --git a/include/clocksource/timer-sp804.h b/include/clocksource/timer-sp804.h
index 7654d71..a5b41f3 100644
--- a/include/clocksource/timer-sp804.h
+++ b/include/clocksource/timer-sp804.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CLKSOURCE_TIMER_SP804_H
 #define __CLKSOURCE_TIMER_SP804_H
 
diff --git a/include/crypto/ablk_helper.h b/include/crypto/ablk_helper.h
index 4f93df5..4e655c2 100644
--- a/include/crypto/ablk_helper.h
+++ b/include/crypto/ablk_helper.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Shared async block cipher helpers
  */
diff --git a/include/crypto/aes.h b/include/crypto/aes.h
index 7524ba3..852eaa9 100644
--- a/include/crypto/aes.h
+++ b/include/crypto/aes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Common values for AES algorithms
  */
diff --git a/include/crypto/blowfish.h b/include/crypto/blowfish.h
index 1450d4a..9b38467 100644
--- a/include/crypto/blowfish.h
+++ b/include/crypto/blowfish.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Common values for blowfish algorithms
  */
diff --git a/include/crypto/cast5.h b/include/crypto/cast5.h
index 14fbf39..3d4ed4e 100644
--- a/include/crypto/cast5.h
+++ b/include/crypto/cast5.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRYPTO_CAST5_H
 #define _CRYPTO_CAST5_H
 
diff --git a/include/crypto/cast6.h b/include/crypto/cast6.h
index 32b60eb..c71f6ef 100644
--- a/include/crypto/cast6.h
+++ b/include/crypto/cast6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRYPTO_CAST6_H
 #define _CRYPTO_CAST6_H
 
diff --git a/include/crypto/cast_common.h b/include/crypto/cast_common.h
index b7df35c..b900902 100644
--- a/include/crypto/cast_common.h
+++ b/include/crypto/cast_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRYPTO_CAST_COMMON_H
 #define _CRYPTO_CAST_COMMON_H
 
diff --git a/include/crypto/chacha20.h b/include/crypto/chacha20.h
index 445fc45..caaa470 100644
--- a/include/crypto/chacha20.h
+++ b/include/crypto/chacha20.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Common values for the ChaCha20 algorithm
  */
diff --git a/include/crypto/cryptd.h b/include/crypto/cryptd.h
index 94418cb..1e64f35 100644
--- a/include/crypto/cryptd.h
+++ b/include/crypto/cryptd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Software async crypto daemon
  *
diff --git a/include/crypto/crypto_wq.h b/include/crypto/crypto_wq.h
index a7d252d..2311474 100644
--- a/include/crypto/crypto_wq.h
+++ b/include/crypto/crypto_wq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef CRYPTO_WQ_H
 #define CRYPTO_WQ_H
 
diff --git a/include/crypto/des.h b/include/crypto/des.h
index fc6274c..d4094d5 100644
--- a/include/crypto/des.h
+++ b/include/crypto/des.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* 
  * DES & Triple DES EDE Cipher Algorithms.
  */
diff --git a/include/crypto/ghash.h b/include/crypto/ghash.h
index 2a61c9b..9136301 100644
--- a/include/crypto/ghash.h
+++ b/include/crypto/ghash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Common values for GHASH algorithms
  */
diff --git a/include/crypto/hmac.h b/include/crypto/hmac.h
index ef09f79..6677413 100644
--- a/include/crypto/hmac.h
+++ b/include/crypto/hmac.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRYPTO_HMAC_H
 #define _CRYPTO_HMAC_H
 
diff --git a/include/crypto/internal/simd.h b/include/crypto/internal/simd.h
index 4295099..32ceb69 100644
--- a/include/crypto/internal/simd.h
+++ b/include/crypto/internal/simd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Shared crypto simd helpers
  */
diff --git a/include/crypto/lrw.h b/include/crypto/lrw.h
index 25a2c87..a9d44c0 100644
--- a/include/crypto/lrw.h
+++ b/include/crypto/lrw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRYPTO_LRW_H
 #define _CRYPTO_LRW_H
 
diff --git a/include/crypto/mcryptd.h b/include/crypto/mcryptd.h
index 4a53c0d..cceafa0 100644
--- a/include/crypto/mcryptd.h
+++ b/include/crypto/mcryptd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Software async multibuffer crypto daemon headers
  *
diff --git a/include/crypto/md5.h b/include/crypto/md5.h
index 327deac..cf9e9de 100644
--- a/include/crypto/md5.h
+++ b/include/crypto/md5.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRYPTO_MD5_H
 #define _CRYPTO_MD5_H
 
diff --git a/include/crypto/null.h b/include/crypto/null.h
index 3f0c59fb..5757c0a 100644
--- a/include/crypto/null.h
+++ b/include/crypto/null.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Values for NULL algorithms */
 
 #ifndef _CRYPTO_NULL_H
diff --git a/include/crypto/poly1305.h b/include/crypto/poly1305.h
index 894df59..c65567d 100644
--- a/include/crypto/poly1305.h
+++ b/include/crypto/poly1305.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Common values for the Poly1305 algorithm
  */
diff --git a/include/crypto/serpent.h b/include/crypto/serpent.h
index b7e0941..7dd780c 100644
--- a/include/crypto/serpent.h
+++ b/include/crypto/serpent.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Common values for serpent algorithms
  */
diff --git a/include/crypto/sha.h b/include/crypto/sha.h
index c94d3eb..0555b57 100644
--- a/include/crypto/sha.h
+++ b/include/crypto/sha.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Common values for SHA algorithms
  */
diff --git a/include/crypto/sha3.h b/include/crypto/sha3.h
index f4c9f68..b9d9bd5 100644
--- a/include/crypto/sha3.h
+++ b/include/crypto/sha3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Common values for SHA-3 algorithms
  */
diff --git a/include/crypto/twofish.h b/include/crypto/twofish.h
index 095c901..2e2c096 100644
--- a/include/crypto/twofish.h
+++ b/include/crypto/twofish.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRYPTO_TWOFISH_H
 #define _CRYPTO_TWOFISH_H
 
diff --git a/include/crypto/xts.h b/include/crypto/xts.h
index c0bde30..322aab6 100644
--- a/include/crypto/xts.h
+++ b/include/crypto/xts.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRYPTO_XTS_H
 #define _CRYPTO_XTS_H
 
diff --git a/include/drm/ati_pcigart.h b/include/drm/ati_pcigart.h
index 5765648..a728a13 100644
--- a/include/drm/ati_pcigart.h
+++ b/include/drm/ati_pcigart.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DRM_ATI_PCIGART_H
 #define DRM_ATI_PCIGART_H
 
diff --git a/include/drm/drm_agpsupport.h b/include/drm/drm_agpsupport.h
index b2d9126..b05e462 100644
--- a/include/drm/drm_agpsupport.h
+++ b/include/drm/drm_agpsupport.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DRM_AGPSUPPORT_H_
 #define _DRM_AGPSUPPORT_H_
 
diff --git a/include/drm/drm_fb_cma_helper.h b/include/drm/drm_fb_cma_helper.h
index a323781..1df291d 100644
--- a/include/drm/drm_fb_cma_helper.h
+++ b/include/drm/drm_fb_cma_helper.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DRM_FB_CMA_HELPER_H__
 #define __DRM_FB_CMA_HELPER_H__
 
diff --git a/include/drm/drm_gem_cma_helper.h b/include/drm/drm_gem_cma_helper.h
index 58a739b..520e3fe 100644
--- a/include/drm/drm_gem_cma_helper.h
+++ b/include/drm/drm_gem_cma_helper.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DRM_GEM_CMA_HELPER_H__
 #define __DRM_GEM_CMA_HELPER_H__
 
diff --git a/include/drm/drm_of.h b/include/drm/drm_of.h
index 104dd51..4f83549 100644
--- a/include/drm/drm_of.h
+++ b/include/drm/drm_of.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DRM_OF_H__
 #define __DRM_OF_H__
 
diff --git a/include/drm/drm_os_linux.h b/include/drm/drm_os_linux.h
index 1012235..ee8d61b 100644
--- a/include/drm/drm_os_linux.h
+++ b/include/drm/drm_os_linux.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /**
  * \file drm_os_linux.h
  * OS abstraction macros.
diff --git a/include/drm/drm_pciids.h b/include/drm/drm_pciids.h
index 8bc073d..6837428 100644
--- a/include/drm/drm_pciids.h
+++ b/include/drm/drm_pciids.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define radeon_PCI_IDS \
 	{0x1002, 0x1304, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KAVERI|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
 	{0x1002, 0x1305, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KAVERI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
diff --git a/include/drm/drm_sysfs.h b/include/drm/drm_sysfs.h
index 70c9a10..4f311e8 100644
--- a/include/drm/drm_sysfs.h
+++ b/include/drm/drm_sysfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DRM_SYSFS_H_
 #define _DRM_SYSFS_H_
 
diff --git a/include/drm/i2c/tda998x.h b/include/drm/i2c/tda998x.h
index a254830..3cb25cc 100644
--- a/include/drm/i2c/tda998x.h
+++ b/include/drm/i2c/tda998x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DRM_I2C_TDA998X_H__
 #define __DRM_I2C_TDA998X_H__
 
diff --git a/include/drm/intel-gtt.h b/include/drm/intel-gtt.h
index b3bf717..c5db797 100644
--- a/include/drm/intel-gtt.h
+++ b/include/drm/intel-gtt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Common header for intel-gtt.ko and i915.ko */
 
 #ifndef _DRM_INTEL_GTT_H
diff --git a/include/dt-bindings/clock/berlin2.h b/include/dt-bindings/clock/berlin2.h
index 0c30800..b07b8ef 100644
--- a/include/dt-bindings/clock/berlin2.h
+++ b/include/dt-bindings/clock/berlin2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Berlin2 BG2/BG2CD clock tree IDs
  */
diff --git a/include/dt-bindings/clock/berlin2q.h b/include/dt-bindings/clock/berlin2q.h
index 72eaf91..44b4ac3 100644
--- a/include/dt-bindings/clock/berlin2q.h
+++ b/include/dt-bindings/clock/berlin2q.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Berlin2 BG2Q clock tree IDs
  */
diff --git a/include/dt-bindings/clock/cortina,gemini-clock.h b/include/dt-bindings/clock/cortina,gemini-clock.h
index acf5cd5..04c3404 100644
--- a/include/dt-bindings/clock/cortina,gemini-clock.h
+++ b/include/dt-bindings/clock/cortina,gemini-clock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DT_BINDINGS_CORTINA_GEMINI_CLOCK_H
 #define DT_BINDINGS_CORTINA_GEMINI_CLOCK_H
 
diff --git a/include/dt-bindings/clock/efm32-cmu.h b/include/dt-bindings/clock/efm32-cmu.h
index b21b91e..4b48d15 100644
--- a/include/dt-bindings/clock/efm32-cmu.h
+++ b/include/dt-bindings/clock/efm32-cmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DT_BINDINGS_CLOCK_EFM32_CMU_H
 #define __DT_BINDINGS_CLOCK_EFM32_CMU_H
 
diff --git a/include/dt-bindings/clock/exynos-audss-clk.h b/include/dt-bindings/clock/exynos-audss-clk.h
index 0ae6f5a..eee9fcc 100644
--- a/include/dt-bindings/clock/exynos-audss-clk.h
+++ b/include/dt-bindings/clock/exynos-audss-clk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for Samsung audio subsystem
  * clock controller.
diff --git a/include/dt-bindings/clock/gxbb-clkc.h b/include/dt-bindings/clock/gxbb-clkc.h
index c04a76d..8c92528 100644
--- a/include/dt-bindings/clock/gxbb-clkc.h
+++ b/include/dt-bindings/clock/gxbb-clkc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * GXBB clock tree IDs
  */
diff --git a/include/dt-bindings/clock/jz4740-cgu.h b/include/dt-bindings/clock/jz4740-cgu.h
index 43153d3..6ed83f9 100644
--- a/include/dt-bindings/clock/jz4740-cgu.h
+++ b/include/dt-bindings/clock/jz4740-cgu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides clock numbers for the ingenic,jz4740-cgu DT binding.
  *
diff --git a/include/dt-bindings/clock/jz4780-cgu.h b/include/dt-bindings/clock/jz4780-cgu.h
index 467165e..1859ce5 100644
--- a/include/dt-bindings/clock/jz4780-cgu.h
+++ b/include/dt-bindings/clock/jz4780-cgu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides clock numbers for the ingenic,jz4780-cgu DT binding.
  *
diff --git a/include/dt-bindings/clock/marvell,mmp2.h b/include/dt-bindings/clock/marvell,mmp2.h
index 7a51038..228a5e2 100644
--- a/include/dt-bindings/clock/marvell,mmp2.h
+++ b/include/dt-bindings/clock/marvell,mmp2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DTS_MARVELL_MMP2_CLOCK_H
 #define __DTS_MARVELL_MMP2_CLOCK_H
 
diff --git a/include/dt-bindings/clock/marvell,pxa168.h b/include/dt-bindings/clock/marvell,pxa168.h
index 3e45bdf..caf9043 100644
--- a/include/dt-bindings/clock/marvell,pxa168.h
+++ b/include/dt-bindings/clock/marvell,pxa168.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DTS_MARVELL_PXA168_CLOCK_H
 #define __DTS_MARVELL_PXA168_CLOCK_H
 
diff --git a/include/dt-bindings/clock/marvell,pxa1928.h b/include/dt-bindings/clock/marvell,pxa1928.h
index d4f2e18..5dca482 100644
--- a/include/dt-bindings/clock/marvell,pxa1928.h
+++ b/include/dt-bindings/clock/marvell,pxa1928.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DTS_MARVELL_PXA1928_CLOCK_H
 #define __DTS_MARVELL_PXA1928_CLOCK_H
 
diff --git a/include/dt-bindings/clock/marvell,pxa910.h b/include/dt-bindings/clock/marvell,pxa910.h
index 135082a..7bf4623 100644
--- a/include/dt-bindings/clock/marvell,pxa910.h
+++ b/include/dt-bindings/clock/marvell,pxa910.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DTS_MARVELL_PXA910_CLOCK_H
 #define __DTS_MARVELL_PXA910_CLOCK_H
 
diff --git a/include/dt-bindings/clock/meson8b-clkc.h b/include/dt-bindings/clock/meson8b-clkc.h
index a9c0306..dea9d46 100644
--- a/include/dt-bindings/clock/meson8b-clkc.h
+++ b/include/dt-bindings/clock/meson8b-clkc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Meson8b clock tree IDs
  */
diff --git a/include/dt-bindings/clock/mpc512x-clock.h b/include/dt-bindings/clock/mpc512x-clock.h
index 4f94919..13c316b 100644
--- a/include/dt-bindings/clock/mpc512x-clock.h
+++ b/include/dt-bindings/clock/mpc512x-clock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for MPC512x clock specs in DT bindings.
  */
diff --git a/include/dt-bindings/clock/rockchip,rk808.h b/include/dt-bindings/clock/rockchip,rk808.h
index 1a87343..75dabfc 100644
--- a/include/dt-bindings/clock/rockchip,rk808.h
+++ b/include/dt-bindings/clock/rockchip,rk808.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants clk index RK808 pmic clkout
  */
diff --git a/include/dt-bindings/clock/ste-ab8500.h b/include/dt-bindings/clock/ste-ab8500.h
index 6731f1f..fb42dd0 100644
--- a/include/dt-bindings/clock/ste-ab8500.h
+++ b/include/dt-bindings/clock/ste-ab8500.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __STE_CLK_AB8500_H__
 #define __STE_CLK_AB8500_H__
 
diff --git a/include/dt-bindings/clock/stih407-clks.h b/include/dt-bindings/clock/stih407-clks.h
index 082edd9..f0936c1 100644
--- a/include/dt-bindings/clock/stih407-clks.h
+++ b/include/dt-bindings/clock/stih407-clks.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants clk index STMicroelectronics
  * STiH407 SoC.
diff --git a/include/dt-bindings/clock/stih410-clks.h b/include/dt-bindings/clock/stih410-clks.h
index 2097a4b..90cbe61 100644
--- a/include/dt-bindings/clock/stih410-clks.h
+++ b/include/dt-bindings/clock/stih410-clks.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants clk index STMicroelectronics
  * STiH410 SoC.
diff --git a/include/dt-bindings/clock/stih416-clks.h b/include/dt-bindings/clock/stih416-clks.h
index f9bdbd1..7430227 100644
--- a/include/dt-bindings/clock/stih416-clks.h
+++ b/include/dt-bindings/clock/stih416-clks.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants clk index STMicroelectronics
  * STiH416 SoC.
diff --git a/include/dt-bindings/clock/stih418-clks.h b/include/dt-bindings/clock/stih418-clks.h
index b62aa0b..0e7fba0 100644
--- a/include/dt-bindings/clock/stih418-clks.h
+++ b/include/dt-bindings/clock/stih418-clks.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants clk index STMicroelectronics
  * STiH418 SoC.
diff --git a/include/dt-bindings/clock/tegra114-car.h b/include/dt-bindings/clock/tegra114-car.h
index ed5ca21..bb5c2c9 100644
--- a/include/dt-bindings/clock/tegra114-car.h
+++ b/include/dt-bindings/clock/tegra114-car.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for binding nvidia,tegra114-car.
  *
diff --git a/include/dt-bindings/clock/tegra124-car-common.h b/include/dt-bindings/clock/tegra124-car-common.h
index 9352c7e..4331f1d 100644
--- a/include/dt-bindings/clock/tegra124-car-common.h
+++ b/include/dt-bindings/clock/tegra124-car-common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for binding nvidia,tegra124-car or
  * nvidia,tegra132-car.
diff --git a/include/dt-bindings/clock/tegra124-car.h b/include/dt-bindings/clock/tegra124-car.h
index 2860737..c520ee2 100644
--- a/include/dt-bindings/clock/tegra124-car.h
+++ b/include/dt-bindings/clock/tegra124-car.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides Tegra124-specific constants for binding
  * nvidia,tegra124-car.
diff --git a/include/dt-bindings/clock/tegra186-clock.h b/include/dt-bindings/clock/tegra186-clock.h
index f73d320..d6b525f 100644
--- a/include/dt-bindings/clock/tegra186-clock.h
+++ b/include/dt-bindings/clock/tegra186-clock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /** @file */
 
 #ifndef _MACH_T186_CLK_T186_H
diff --git a/include/dt-bindings/clock/tegra20-car.h b/include/dt-bindings/clock/tegra20-car.h
index 04500b2..b21a0eb 100644
--- a/include/dt-bindings/clock/tegra20-car.h
+++ b/include/dt-bindings/clock/tegra20-car.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for binding nvidia,tegra20-car.
  *
diff --git a/include/dt-bindings/clock/tegra210-car.h b/include/dt-bindings/clock/tegra210-car.h
index 46689cd..a9dc145 100644
--- a/include/dt-bindings/clock/tegra210-car.h
+++ b/include/dt-bindings/clock/tegra210-car.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for binding nvidia,tegra210-car.
  *
diff --git a/include/dt-bindings/clock/tegra30-car.h b/include/dt-bindings/clock/tegra30-car.h
index 7213354b..3c90f15 100644
--- a/include/dt-bindings/clock/tegra30-car.h
+++ b/include/dt-bindings/clock/tegra30-car.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for binding nvidia,tegra30-car.
  *
diff --git a/include/dt-bindings/display/tda998x.h b/include/dt-bindings/display/tda998x.h
index 34757a3..746831f 100644
--- a/include/dt-bindings/display/tda998x.h
+++ b/include/dt-bindings/display/tda998x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DT_BINDINGS_TDA998X_H
 #define _DT_BINDINGS_TDA998X_H
 
diff --git a/include/dt-bindings/gpio/gpio.h b/include/dt-bindings/gpio/gpio.h
index c507458..32dd58a 100644
--- a/include/dt-bindings/gpio/gpio.h
+++ b/include/dt-bindings/gpio/gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for most GPIO bindings.
  *
diff --git a/include/dt-bindings/gpio/tegra-gpio.h b/include/dt-bindings/gpio/tegra-gpio.h
index a1c09e8..7625dbc 100644
--- a/include/dt-bindings/gpio/tegra-gpio.h
+++ b/include/dt-bindings/gpio/tegra-gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for binding nvidia,tegra*-gpio.
  *
diff --git a/include/dt-bindings/gpio/tegra186-gpio.h b/include/dt-bindings/gpio/tegra186-gpio.h
index 38001c70..463ad39 100644
--- a/include/dt-bindings/gpio/tegra186-gpio.h
+++ b/include/dt-bindings/gpio/tegra186-gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for binding nvidia,tegra186-gpio*.
  *
diff --git a/include/dt-bindings/iio/adc/fsl-imx25-gcq.h b/include/dt-bindings/iio/adc/fsl-imx25-gcq.h
index 87abdd4..08ef4d2 100644
--- a/include/dt-bindings/iio/adc/fsl-imx25-gcq.h
+++ b/include/dt-bindings/iio/adc/fsl-imx25-gcq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for configuring the I.MX25 ADC
  */
diff --git a/include/dt-bindings/iio/adi,ad5592r.h b/include/dt-bindings/iio/adi,ad5592r.h
index c48aca1..9f8c7b8 100644
--- a/include/dt-bindings/iio/adi,ad5592r.h
+++ b/include/dt-bindings/iio/adi,ad5592r.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef _DT_BINDINGS_ADI_AD5592R_H
 #define _DT_BINDINGS_ADI_AD5592R_H
diff --git a/include/dt-bindings/input/input.h b/include/dt-bindings/input/input.h
index a214133..bcf0ae1 100644
--- a/include/dt-bindings/input/input.h
+++ b/include/dt-bindings/input/input.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for most input bindings.
  *
diff --git a/include/dt-bindings/interrupt-controller/arm-gic.h b/include/dt-bindings/interrupt-controller/arm-gic.h
index d4110d5..0c85f65 100644
--- a/include/dt-bindings/interrupt-controller/arm-gic.h
+++ b/include/dt-bindings/interrupt-controller/arm-gic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for the ARM GIC.
  */
diff --git a/include/dt-bindings/interrupt-controller/irq.h b/include/dt-bindings/interrupt-controller/irq.h
index 33a1003..a8b3105 100644
--- a/include/dt-bindings/interrupt-controller/irq.h
+++ b/include/dt-bindings/interrupt-controller/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for most IRQ bindings.
  *
diff --git a/include/dt-bindings/interrupt-controller/mips-gic.h b/include/dt-bindings/interrupt-controller/mips-gic.h
index cf35a57..bd45cee 100644
--- a/include/dt-bindings/interrupt-controller/mips-gic.h
+++ b/include/dt-bindings/interrupt-controller/mips-gic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DT_BINDINGS_INTERRUPT_CONTROLLER_MIPS_GIC_H
 #define _DT_BINDINGS_INTERRUPT_CONTROLLER_MIPS_GIC_H
 
diff --git a/include/dt-bindings/interrupt-controller/mvebu-icu.h b/include/dt-bindings/interrupt-controller/mvebu-icu.h
index 8249558..bb5217c 100644
--- a/include/dt-bindings/interrupt-controller/mvebu-icu.h
+++ b/include/dt-bindings/interrupt-controller/mvebu-icu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for the MVEBU ICU driver.
  */
diff --git a/include/dt-bindings/leds/common.h b/include/dt-bindings/leds/common.h
index 7958bec..e171d0a 100644
--- a/include/dt-bindings/leds/common.h
+++ b/include/dt-bindings/leds/common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides macros for the common LEDs device tree bindings.
  *
diff --git a/include/dt-bindings/leds/leds-ns2.h b/include/dt-bindings/leds/leds-ns2.h
index 491c5f9..fd61574 100644
--- a/include/dt-bindings/leds/leds-ns2.h
+++ b/include/dt-bindings/leds/leds-ns2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DT_BINDINGS_LEDS_NS2_H
 #define _DT_BINDINGS_LEDS_NS2_H
 
diff --git a/include/dt-bindings/mailbox/tegra186-hsp.h b/include/dt-bindings/mailbox/tegra186-hsp.h
index f5d66e5..bcab5b7 100644
--- a/include/dt-bindings/mailbox/tegra186-hsp.h
+++ b/include/dt-bindings/mailbox/tegra186-hsp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for binding nvidia,tegra186-hsp.
  */
diff --git a/include/dt-bindings/media/c8sectpfe.h b/include/dt-bindings/media/c8sectpfe.h
index a0b5c7b..6b1fb6f5 100644
--- a/include/dt-bindings/media/c8sectpfe.h
+++ b/include/dt-bindings/media/c8sectpfe.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DT_C8SECTPFE_H
 #define __DT_C8SECTPFE_H
 
diff --git a/include/dt-bindings/memory/tegra114-mc.h b/include/dt-bindings/memory/tegra114-mc.h
index 8f48985..27c8386 100644
--- a/include/dt-bindings/memory/tegra114-mc.h
+++ b/include/dt-bindings/memory/tegra114-mc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DT_BINDINGS_MEMORY_TEGRA114_MC_H
 #define DT_BINDINGS_MEMORY_TEGRA114_MC_H
 
diff --git a/include/dt-bindings/memory/tegra124-mc.h b/include/dt-bindings/memory/tegra124-mc.h
index 7d8ee79..f534d7c 100644
--- a/include/dt-bindings/memory/tegra124-mc.h
+++ b/include/dt-bindings/memory/tegra124-mc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DT_BINDINGS_MEMORY_TEGRA124_MC_H
 #define DT_BINDINGS_MEMORY_TEGRA124_MC_H
 
diff --git a/include/dt-bindings/memory/tegra210-mc.h b/include/dt-bindings/memory/tegra210-mc.h
index d1731bc..4490f7c 100644
--- a/include/dt-bindings/memory/tegra210-mc.h
+++ b/include/dt-bindings/memory/tegra210-mc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DT_BINDINGS_MEMORY_TEGRA210_MC_H
 #define DT_BINDINGS_MEMORY_TEGRA210_MC_H
 
diff --git a/include/dt-bindings/memory/tegra30-mc.h b/include/dt-bindings/memory/tegra30-mc.h
index 502beb0..3cac819 100644
--- a/include/dt-bindings/memory/tegra30-mc.h
+++ b/include/dt-bindings/memory/tegra30-mc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DT_BINDINGS_MEMORY_TEGRA30_MC_H
 #define DT_BINDINGS_MEMORY_TEGRA30_MC_H
 
diff --git a/include/dt-bindings/mfd/as3722.h b/include/dt-bindings/mfd/as3722.h
index e66c0898c..9ef0cba 100644
--- a/include/dt-bindings/mfd/as3722.h
+++ b/include/dt-bindings/mfd/as3722.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides macros for ams AS3722 device bindings.
  *
diff --git a/include/dt-bindings/mfd/dbx500-prcmu.h b/include/dt-bindings/mfd/dbx500-prcmu.h
index 552a2d1..0404bcc 100644
--- a/include/dt-bindings/mfd/dbx500-prcmu.h
+++ b/include/dt-bindings/mfd/dbx500-prcmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for the PRCMU bindings.
  *
diff --git a/include/dt-bindings/mfd/max77620.h b/include/dt-bindings/mfd/max77620.h
index b911a07..1e19c5f 100644
--- a/include/dt-bindings/mfd/max77620.h
+++ b/include/dt-bindings/mfd/max77620.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides macros for MAXIM MAX77620 device bindings.
  *
diff --git a/include/dt-bindings/mfd/palmas.h b/include/dt-bindings/mfd/palmas.h
index cdb075a..c4f1d57 100644
--- a/include/dt-bindings/mfd/palmas.h
+++ b/include/dt-bindings/mfd/palmas.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides macros for Palmas device bindings.
  *
diff --git a/include/dt-bindings/mfd/qcom-rpm.h b/include/dt-bindings/mfd/qcom-rpm.h
index 54aef5e..c9204c4 100644
--- a/include/dt-bindings/mfd/qcom-rpm.h
+++ b/include/dt-bindings/mfd/qcom-rpm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for the Qualcomm RPM bindings.
  */
diff --git a/include/dt-bindings/mfd/st-lpc.h b/include/dt-bindings/mfd/st-lpc.h
index d05894a..88a7f56 100644
--- a/include/dt-bindings/mfd/st-lpc.h
+++ b/include/dt-bindings/mfd/st-lpc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides shared DT/Driver defines for ST's LPC device
  *
diff --git a/include/dt-bindings/mfd/stm32f4-rcc.h b/include/dt-bindings/mfd/stm32f4-rcc.h
index 082a81c..309e8c7 100644
--- a/include/dt-bindings/mfd/stm32f4-rcc.h
+++ b/include/dt-bindings/mfd/stm32f4-rcc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for the STM32F4 RCC IP
  */
diff --git a/include/dt-bindings/mfd/stm32f7-rcc.h b/include/dt-bindings/mfd/stm32f7-rcc.h
index e36cc69..8b7b719 100644
--- a/include/dt-bindings/mfd/stm32f7-rcc.h
+++ b/include/dt-bindings/mfd/stm32f7-rcc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for the STM32F7 RCC IP
  */
diff --git a/include/dt-bindings/mux/mux.h b/include/dt-bindings/mux/mux.h
index c8e855c..0427192 100644
--- a/include/dt-bindings/mux/mux.h
+++ b/include/dt-bindings/mux/mux.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for most Multiplexer bindings.
  *
diff --git a/include/dt-bindings/pinctrl/am33xx.h b/include/dt-bindings/pinctrl/am33xx.h
index 226f772..7d947a5 100644
--- a/include/dt-bindings/pinctrl/am33xx.h
+++ b/include/dt-bindings/pinctrl/am33xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants specific to AM33XX pinctrl bindings.
  */
diff --git a/include/dt-bindings/pinctrl/am43xx.h b/include/dt-bindings/pinctrl/am43xx.h
index 344bd1e..4678915 100644
--- a/include/dt-bindings/pinctrl/am43xx.h
+++ b/include/dt-bindings/pinctrl/am43xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants specific to AM43XX pinctrl bindings.
  */
diff --git a/include/dt-bindings/pinctrl/dm814x.h b/include/dt-bindings/pinctrl/dm814x.h
index 0f48427..afbabbc 100644
--- a/include/dt-bindings/pinctrl/dm814x.h
+++ b/include/dt-bindings/pinctrl/dm814x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants specific to DM814X pinctrl bindings.
  */
diff --git a/include/dt-bindings/pinctrl/mt6397-pinfunc.h b/include/dt-bindings/pinctrl/mt6397-pinfunc.h
index 85739b3..f393fbd 100644
--- a/include/dt-bindings/pinctrl/mt6397-pinfunc.h
+++ b/include/dt-bindings/pinctrl/mt6397-pinfunc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DTS_MT6397_PINFUNC_H
 #define __DTS_MT6397_PINFUNC_H
 
diff --git a/include/dt-bindings/pinctrl/mt7623-pinfunc.h b/include/dt-bindings/pinctrl/mt7623-pinfunc.h
index 436a87b..2d6a7b1 100644
--- a/include/dt-bindings/pinctrl/mt7623-pinfunc.h
+++ b/include/dt-bindings/pinctrl/mt7623-pinfunc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DTS_MT7623_PINFUNC_H
 #define __DTS_MT7623_PINFUNC_H
 
diff --git a/include/dt-bindings/pinctrl/omap.h b/include/dt-bindings/pinctrl/omap.h
index fbd6f72..49b5dea 100644
--- a/include/dt-bindings/pinctrl/omap.h
+++ b/include/dt-bindings/pinctrl/omap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for OMAP pinctrl bindings.
  *
diff --git a/include/dt-bindings/pinctrl/pinctrl-tegra-xusb.h b/include/dt-bindings/pinctrl/pinctrl-tegra-xusb.h
index 914d56d..ac63c39 100644
--- a/include/dt-bindings/pinctrl/pinctrl-tegra-xusb.h
+++ b/include/dt-bindings/pinctrl/pinctrl-tegra-xusb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DT_BINDINGS_PINCTRL_TEGRA_XUSB_H
 #define _DT_BINDINGS_PINCTRL_TEGRA_XUSB_H 1
 
diff --git a/include/dt-bindings/pinctrl/qcom,pmic-gpio.h b/include/dt-bindings/pinctrl/qcom,pmic-gpio.h
index b8ff882..e5df5ce 100644
--- a/include/dt-bindings/pinctrl/qcom,pmic-gpio.h
+++ b/include/dt-bindings/pinctrl/qcom,pmic-gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for the Qualcomm PMIC GPIO binding.
  */
diff --git a/include/dt-bindings/pinctrl/qcom,pmic-mpp.h b/include/dt-bindings/pinctrl/qcom,pmic-mpp.h
index 2e360d8f..32e66ee 100644
--- a/include/dt-bindings/pinctrl/qcom,pmic-mpp.h
+++ b/include/dt-bindings/pinctrl/qcom,pmic-mpp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for the Qualcomm PMIC's
  * Multi-Purpose Pin binding.
diff --git a/include/dt-bindings/pinctrl/r7s72100-pinctrl.h b/include/dt-bindings/pinctrl/r7s72100-pinctrl.h
index 6b609fe..cdb9502 100644
--- a/include/dt-bindings/pinctrl/r7s72100-pinctrl.h
+++ b/include/dt-bindings/pinctrl/r7s72100-pinctrl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Defines macros and constants for Renesas RZ/A1 pin controller pin
  * muxing functions.
diff --git a/include/dt-bindings/pinctrl/stm32f429-pinfunc.h b/include/dt-bindings/pinctrl/stm32f429-pinfunc.h
index 26f1879..9a5a028 100644
--- a/include/dt-bindings/pinctrl/stm32f429-pinfunc.h
+++ b/include/dt-bindings/pinctrl/stm32f429-pinfunc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DT_BINDINGS_STM32F429_PINFUNC_H
 #define _DT_BINDINGS_STM32F429_PINFUNC_H
 
diff --git a/include/dt-bindings/pinctrl/stm32f746-pinfunc.h b/include/dt-bindings/pinctrl/stm32f746-pinfunc.h
index 6348c6a..4c28f8f 100644
--- a/include/dt-bindings/pinctrl/stm32f746-pinfunc.h
+++ b/include/dt-bindings/pinctrl/stm32f746-pinfunc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DT_BINDINGS_STM32F746_PINFUNC_H
 #define _DT_BINDINGS_STM32F746_PINFUNC_H
 
diff --git a/include/dt-bindings/pinctrl/stm32h7-pinfunc.h b/include/dt-bindings/pinctrl/stm32h7-pinfunc.h
index cb673b5..06d99a8 100644
--- a/include/dt-bindings/pinctrl/stm32h7-pinfunc.h
+++ b/include/dt-bindings/pinctrl/stm32h7-pinfunc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DT_BINDINGS_STM32H7_PINFUNC_H
 #define _DT_BINDINGS_STM32H7_PINFUNC_H
 
diff --git a/include/dt-bindings/power/mt8173-power.h b/include/dt-bindings/power/mt8173-power.h
index b34cee9..15d531a 100644
--- a/include/dt-bindings/power/mt8173-power.h
+++ b/include/dt-bindings/power/mt8173-power.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DT_BINDINGS_POWER_MT8183_POWER_H
 #define _DT_BINDINGS_POWER_MT8183_POWER_H
 
diff --git a/include/dt-bindings/power/rk3288-power.h b/include/dt-bindings/power/rk3288-power.h
index b8b1045..f710b56 100644
--- a/include/dt-bindings/power/rk3288-power.h
+++ b/include/dt-bindings/power/rk3288-power.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DT_BINDINGS_POWER_RK3288_POWER_H__
 #define __DT_BINDINGS_POWER_RK3288_POWER_H__
 
diff --git a/include/dt-bindings/power/rk3328-power.h b/include/dt-bindings/power/rk3328-power.h
index 10c3c37..02e3d7f 100644
--- a/include/dt-bindings/power/rk3328-power.h
+++ b/include/dt-bindings/power/rk3328-power.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DT_BINDINGS_POWER_RK3328_POWER_H__
 #define __DT_BINDINGS_POWER_RK3328_POWER_H__
 
diff --git a/include/dt-bindings/power/rk3368-power.h b/include/dt-bindings/power/rk3368-power.h
index 93633d5..5e602db 100644
--- a/include/dt-bindings/power/rk3368-power.h
+++ b/include/dt-bindings/power/rk3368-power.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DT_BINDINGS_POWER_RK3368_POWER_H__
 #define __DT_BINDINGS_POWER_RK3368_POWER_H__
 
diff --git a/include/dt-bindings/power/rk3399-power.h b/include/dt-bindings/power/rk3399-power.h
index 168b3bf..aedd8b1 100644
--- a/include/dt-bindings/power/rk3399-power.h
+++ b/include/dt-bindings/power/rk3399-power.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DT_BINDINGS_POWER_RK3399_POWER_H__
 #define __DT_BINDINGS_POWER_RK3399_POWER_H__
 
diff --git a/include/dt-bindings/pwm/pwm.h b/include/dt-bindings/pwm/pwm.h
index 96f49e8..ab9a077 100644
--- a/include/dt-bindings/pwm/pwm.h
+++ b/include/dt-bindings/pwm/pwm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for most PWM bindings.
  *
diff --git a/include/dt-bindings/reset/cortina,gemini-reset.h b/include/dt-bindings/reset/cortina,gemini-reset.h
index 0b886ae..f48aff2 100644
--- a/include/dt-bindings/reset/cortina,gemini-reset.h
+++ b/include/dt-bindings/reset/cortina,gemini-reset.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DT_BINDINGS_RESET_CORTINA_GEMINI_H
 #define _DT_BINDINGS_RESET_CORTINA_GEMINI_H
 
diff --git a/include/dt-bindings/reset/hisi,hi6220-resets.h b/include/dt-bindings/reset/hisi,hi6220-resets.h
index 322ec53..e7c362a8 100644
--- a/include/dt-bindings/reset/hisi,hi6220-resets.h
+++ b/include/dt-bindings/reset/hisi,hi6220-resets.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /**
  * This header provides index for the reset controller
  * based on hi6220 SoC.
diff --git a/include/dt-bindings/reset/pistachio-resets.h b/include/dt-bindings/reset/pistachio-resets.h
index 60a189b..5bb4dd0 100644
--- a/include/dt-bindings/reset/pistachio-resets.h
+++ b/include/dt-bindings/reset/pistachio-resets.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for the reset controller
  * present in the Pistachio SoC
diff --git a/include/dt-bindings/reset/stih407-resets.h b/include/dt-bindings/reset/stih407-resets.h
index 4ab3a1c..f2a2c4f 100644
--- a/include/dt-bindings/reset/stih407-resets.h
+++ b/include/dt-bindings/reset/stih407-resets.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for the reset controller
  * based peripheral powerdown requests on the STMicroelectronics
diff --git a/include/dt-bindings/reset/stih415-resets.h b/include/dt-bindings/reset/stih415-resets.h
index c2329fe..96f7831 100644
--- a/include/dt-bindings/reset/stih415-resets.h
+++ b/include/dt-bindings/reset/stih415-resets.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for the reset controller
  * based peripheral powerdown requests on the STMicroelectronics
diff --git a/include/dt-bindings/reset/stih416-resets.h b/include/dt-bindings/reset/stih416-resets.h
index fcf9af1..f682c90 100644
--- a/include/dt-bindings/reset/stih416-resets.h
+++ b/include/dt-bindings/reset/stih416-resets.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for the reset controller
  * based peripheral powerdown requests on the STMicroelectronics
diff --git a/include/dt-bindings/reset/tegra124-car.h b/include/dt-bindings/reset/tegra124-car.h
index 070e4f6..97d2f3d 100644
--- a/include/dt-bindings/reset/tegra124-car.h
+++ b/include/dt-bindings/reset/tegra124-car.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides Tegra124-specific constants for binding
  * nvidia,tegra124-car.
diff --git a/include/dt-bindings/reset/tegra210-car.h b/include/dt-bindings/reset/tegra210-car.h
index 296ec6e..9dc84ec 100644
--- a/include/dt-bindings/reset/tegra210-car.h
+++ b/include/dt-bindings/reset/tegra210-car.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides Tegra210-specific constants for binding
  * nvidia,tegra210-car.
diff --git a/include/dt-bindings/soc/rockchip,boot-mode.h b/include/dt-bindings/soc/rockchip,boot-mode.h
index ae7c867..4b0914c 100644
--- a/include/dt-bindings/soc/rockchip,boot-mode.h
+++ b/include/dt-bindings/soc/rockchip,boot-mode.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ROCKCHIP_BOOT_MODE_H
 #define __ROCKCHIP_BOOT_MODE_H
 
diff --git a/include/dt-bindings/sound/apq8016-lpass.h b/include/dt-bindings/sound/apq8016-lpass.h
index 499076e..3c3e16c 100644
--- a/include/dt-bindings/sound/apq8016-lpass.h
+++ b/include/dt-bindings/sound/apq8016-lpass.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DT_APQ8016_LPASS_H
 #define __DT_APQ8016_LPASS_H
 
diff --git a/include/dt-bindings/sound/audio-jack-events.h b/include/dt-bindings/sound/audio-jack-events.h
index 378349f..1b29b29 100644
--- a/include/dt-bindings/sound/audio-jack-events.h
+++ b/include/dt-bindings/sound/audio-jack-events.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __AUDIO_JACK_EVENTS_H
 #define __AUDIO_JACK_EVENTS_H
 
diff --git a/include/dt-bindings/sound/cs35l32.h b/include/dt-bindings/sound/cs35l32.h
index 0c6d6a3..7549d50 100644
--- a/include/dt-bindings/sound/cs35l32.h
+++ b/include/dt-bindings/sound/cs35l32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DT_CS35L32_H
 #define __DT_CS35L32_H
 
diff --git a/include/dt-bindings/sound/fsl-imx-audmux.h b/include/dt-bindings/sound/fsl-imx-audmux.h
index 50b09e9..751fe14 100644
--- a/include/dt-bindings/sound/fsl-imx-audmux.h
+++ b/include/dt-bindings/sound/fsl-imx-audmux.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DT_FSL_IMX_AUDMUX_H
 #define __DT_FSL_IMX_AUDMUX_H
 
diff --git a/include/dt-bindings/sound/samsung-i2s.h b/include/dt-bindings/sound/samsung-i2s.h
index 0c69818..77545f1 100644
--- a/include/dt-bindings/sound/samsung-i2s.h
+++ b/include/dt-bindings/sound/samsung-i2s.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DT_BINDINGS_SAMSUNG_I2S_H
 #define _DT_BINDINGS_SAMSUNG_I2S_H
 
diff --git a/include/dt-bindings/sound/tas2552.h b/include/dt-bindings/sound/tas2552.h
index a4e1a07..0daeb83 100644
--- a/include/dt-bindings/sound/tas2552.h
+++ b/include/dt-bindings/sound/tas2552.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DT_TAS2552_H
 #define __DT_TAS2552_H
 
diff --git a/include/dt-bindings/sound/tlv320aic31xx-micbias.h b/include/dt-bindings/sound/tlv320aic31xx-micbias.h
index f5cb772..c6895a1 100644
--- a/include/dt-bindings/sound/tlv320aic31xx-micbias.h
+++ b/include/dt-bindings/sound/tlv320aic31xx-micbias.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DT_TLV320AIC31XX_MICBIAS_H
 #define __DT_TLV320AIC31XX_MICBIAS_H
 
diff --git a/include/dt-bindings/thermal/lm90.h b/include/dt-bindings/thermal/lm90.h
index 8c2e309..eed91a1 100644
--- a/include/dt-bindings/thermal/lm90.h
+++ b/include/dt-bindings/thermal/lm90.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for the LM90 thermal bindings.
  */
diff --git a/include/dt-bindings/thermal/tegra124-soctherm.h b/include/dt-bindings/thermal/tegra124-soctherm.h
index 2a99f1d..c15e8b7 100644
--- a/include/dt-bindings/thermal/tegra124-soctherm.h
+++ b/include/dt-bindings/thermal/tegra124-soctherm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for binding nvidia,tegra124-soctherm.
  */
diff --git a/include/keys/ceph-type.h b/include/keys/ceph-type.h
index f69c4ac..aa6d3e0 100644
--- a/include/keys/ceph-type.h
+++ b/include/keys/ceph-type.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _KEYS_CEPH_TYPE_H
 #define _KEYS_CEPH_TYPE_H
 
diff --git a/include/linux/8250_pci.h b/include/linux/8250_pci.h
index b24ff08..9c777d2 100644
--- a/include/linux/8250_pci.h
+++ b/include/linux/8250_pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Definitions for PCI support.
  */
diff --git a/include/linux/a.out.h b/include/linux/a.out.h
index ee88416..600cf45 100644
--- a/include/linux/a.out.h
+++ b/include/linux/a.out.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __A_OUT_GNU_H__
 #define __A_OUT_GNU_H__
 
diff --git a/include/linux/acct.h b/include/linux/acct.h
index dccc2d4..18e1955 100644
--- a/include/linux/acct.h
+++ b/include/linux/acct.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  BSD Process Accounting for Linux - Definitions
  *
diff --git a/include/linux/acpi_pmtmr.h b/include/linux/acpi_pmtmr.h
index 1d0ef1a..50d88bf 100644
--- a/include/linux/acpi_pmtmr.h
+++ b/include/linux/acpi_pmtmr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ACPI_PMTMR_H_
 #define _ACPI_PMTMR_H_
 
diff --git a/include/linux/adb.h b/include/linux/adb.h
index cde4130..f6306fc 100644
--- a/include/linux/adb.h
+++ b/include/linux/adb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Definitions for ADB (Apple Desktop Bus) support.
  */
diff --git a/include/linux/adfs_fs.h b/include/linux/adfs_fs.h
index 0d99107..4836e38 100644
--- a/include/linux/adfs_fs.h
+++ b/include/linux/adfs_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ADFS_FS_H
 #define _ADFS_FS_H
 
diff --git a/include/linux/aer.h b/include/linux/aer.h
index 43799bd..8f87bbe 100644
--- a/include/linux/aer.h
+++ b/include/linux/aer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2006 Intel Corp.
  *     Tom Long Nguyen (tom.l.nguyen@intel.com)
diff --git a/include/linux/ahci-remap.h b/include/linux/ahci-remap.h
index 62be3a4..230c871 100644
--- a/include/linux/ahci-remap.h
+++ b/include/linux/ahci-remap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_AHCI_REMAP_H
 #define _LINUX_AHCI_REMAP_H
 
diff --git a/include/linux/aio.h b/include/linux/aio.h
index fdd0a34..9d8aabe 100644
--- a/include/linux/aio.h
+++ b/include/linux/aio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX__AIO_H
 #define __LINUX__AIO_H
 
diff --git a/include/linux/alarmtimer.h b/include/linux/alarmtimer.h
index c70aac1..0760ca1 100644
--- a/include/linux/alarmtimer.h
+++ b/include/linux/alarmtimer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_ALARMTIMER_H
 #define _LINUX_ALARMTIMER_H
 
diff --git a/include/linux/altera_jtaguart.h b/include/linux/altera_jtaguart.h
index 953b178..527a142 100644
--- a/include/linux/altera_jtaguart.h
+++ b/include/linux/altera_jtaguart.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * altera_jtaguart.h -- Altera JTAG UART driver defines.
  */
diff --git a/include/linux/altera_uart.h b/include/linux/altera_uart.h
index c022c82..3eb73b8 100644
--- a/include/linux/altera_uart.h
+++ b/include/linux/altera_uart.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * altera_uart.h -- Altera UART driver defines.
  */
diff --git a/include/linux/amba/mmci.h b/include/linux/amba/mmci.h
index 8c98113..da8357b 100644
--- a/include/linux/amba/mmci.h
+++ b/include/linux/amba/mmci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  include/linux/amba/mmci.h
  */
diff --git a/include/linux/amifd.h b/include/linux/amifd.h
index 3469932..202a77d 100644
--- a/include/linux/amifd.h
+++ b/include/linux/amifd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _AMIFD_H
 #define _AMIFD_H
 
diff --git a/include/linux/amifdreg.h b/include/linux/amifdreg.h
index 76188bf..9b514d0 100644
--- a/include/linux/amifdreg.h
+++ b/include/linux/amifdreg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_AMIFDREG_H
 #define _LINUX_AMIFDREG_H
 
diff --git a/include/linux/anon_inodes.h b/include/linux/anon_inodes.h
index 8013a45..d0d7d96 100644
--- a/include/linux/anon_inodes.h
+++ b/include/linux/anon_inodes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  include/linux/anon_inodes.h
  *
diff --git a/include/linux/apple_bl.h b/include/linux/apple_bl.h
index 0a95e73..445af2e 100644
--- a/include/linux/apple_bl.h
+++ b/include/linux/apple_bl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * apple_bl exported symbols
  */
diff --git a/include/linux/arch_topology.h b/include/linux/arch_topology.h
index 716ce58..d4fcb0e 100644
--- a/include/linux/arch_topology.h
+++ b/include/linux/arch_topology.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/linux/arch_topology.h - arch specific cpu topology information
  */
diff --git a/include/linux/ata_platform.h b/include/linux/ata_platform.h
index 619d9e7..ff21202 100644
--- a/include/linux/ata_platform.h
+++ b/include/linux/ata_platform.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_ATA_PLATFORM_H
 #define __LINUX_ATA_PLATFORM_H
 
diff --git a/include/linux/atalk.h b/include/linux/atalk.h
index 73fd8b7..4d356e1 100644
--- a/include/linux/atalk.h
+++ b/include/linux/atalk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_ATALK_H__
 #define __LINUX_ATALK_H__
 
diff --git a/include/linux/atm.h b/include/linux/atm.h
index 30006c4..4b50fd0 100644
--- a/include/linux/atm.h
+++ b/include/linux/atm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* atm.h - general ATM declarations */
 #ifndef _LINUX_ATM_H
 #define _LINUX_ATM_H
diff --git a/include/linux/atm_tcp.h b/include/linux/atm_tcp.h
index db6b65f..c8ecf6f 100644
--- a/include/linux/atm_tcp.h
+++ b/include/linux/atm_tcp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* atm_tcp.h - Driver-specific declarations of the ATMTCP driver (for use by
 	       driver-specific utilities) */
 
diff --git a/include/linux/atmdev.h b/include/linux/atmdev.h
index 0ec9bdb..0c27515 100644
--- a/include/linux/atmdev.h
+++ b/include/linux/atmdev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* atmdev.h - ATM device driver declarations and various related items */
 #ifndef LINUX_ATMDEV_H
 #define LINUX_ATMDEV_H
diff --git a/include/linux/atmel-mci.h b/include/linux/atmel-mci.h
index 42a9e18..1491af3 100644
--- a/include/linux/atmel-mci.h
+++ b/include/linux/atmel-mci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_ATMEL_MCI_H
 #define __LINUX_ATMEL_MCI_H
 
diff --git a/include/linux/atmel-ssc.h b/include/linux/atmel-ssc.h
index fdb5451..6091d2a 100644
--- a/include/linux/atmel-ssc.h
+++ b/include/linux/atmel-ssc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __INCLUDE_ATMEL_SSC_H
 #define __INCLUDE_ATMEL_SSC_H
 
diff --git a/include/linux/atomic.h b/include/linux/atomic.h
index 40d6bfe..cd18203 100644
--- a/include/linux/atomic.h
+++ b/include/linux/atomic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Atomic operations usable in machine independent code */
 #ifndef _LINUX_ATOMIC_H
 #define _LINUX_ATOMIC_H
diff --git a/include/linux/auxvec.h b/include/linux/auxvec.h
index 3e0fbe4..f68d0ec 100644
--- a/include/linux/auxvec.h
+++ b/include/linux/auxvec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_AUXVEC_H
 #define _LINUX_AUXVEC_H
 
diff --git a/include/linux/average.h b/include/linux/average.h
index 7ddaf34..1b6f556 100644
--- a/include/linux/average.h
+++ b/include/linux/average.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_AVERAGE_H
 #define _LINUX_AVERAGE_H
 
diff --git a/include/linux/backing-dev-defs.h b/include/linux/backing-dev-defs.h
index 866c433..fff4cfa 100644
--- a/include/linux/backing-dev-defs.h
+++ b/include/linux/backing-dev-defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_BACKING_DEV_DEFS_H
 #define __LINUX_BACKING_DEV_DEFS_H
 
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index 854e1bd..1662157 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/linux/backing-dev.h
  *
diff --git a/include/linux/backlight.h b/include/linux/backlight.h
index 5f2fd61..af70035 100644
--- a/include/linux/backlight.h
+++ b/include/linux/backlight.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Backlight Lowlevel Control Abstraction
  *
diff --git a/include/linux/badblocks.h b/include/linux/badblocks.h
index c3bdf8c..2426276 100644
--- a/include/linux/badblocks.h
+++ b/include/linux/badblocks.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BADBLOCKS_H
 #define _LINUX_BADBLOCKS_H
 
diff --git a/include/linux/balloon_compaction.h b/include/linux/balloon_compaction.h
index 79542b2..fbbe6da 100644
--- a/include/linux/balloon_compaction.h
+++ b/include/linux/balloon_compaction.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/linux/balloon_compaction.h
  *
diff --git a/include/linux/bcd.h b/include/linux/bcd.h
index 18fff11..118bea3 100644
--- a/include/linux/bcd.h
+++ b/include/linux/bcd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BCD_H
 #define _BCD_H
 
diff --git a/include/linux/bcm47xx_wdt.h b/include/linux/bcm47xx_wdt.h
index 8d9d07e..fc9dcdb 100644
--- a/include/linux/bcm47xx_wdt.h
+++ b/include/linux/bcm47xx_wdt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_BCM47XX_WDT_H_
 #define LINUX_BCM47XX_WDT_H_
 
diff --git a/include/linux/bcm963xx_nvram.h b/include/linux/bcm963xx_nvram.h
index 290c231..c8c7f01 100644
--- a/include/linux/bcm963xx_nvram.h
+++ b/include/linux/bcm963xx_nvram.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_BCM963XX_NVRAM_H__
 #define __LINUX_BCM963XX_NVRAM_H__
 
diff --git a/include/linux/bcm963xx_tag.h b/include/linux/bcm963xx_tag.h
index 161c7b3..b87945c 100644
--- a/include/linux/bcm963xx_tag.h
+++ b/include/linux/bcm963xx_tag.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_BCM963XX_TAG_H__
 #define __LINUX_BCM963XX_TAG_H__
 
diff --git a/include/linux/bcma/bcma.h b/include/linux/bcma/bcma.h
index 8eeedb2..ef61f36 100644
--- a/include/linux/bcma/bcma.h
+++ b/include/linux/bcma/bcma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_BCMA_H_
 #define LINUX_BCMA_H_
 
diff --git a/include/linux/bcma/bcma_driver_arm_c9.h b/include/linux/bcma/bcma_driver_arm_c9.h
index 93bd73d..688cf59 100644
--- a/include/linux/bcma/bcma_driver_arm_c9.h
+++ b/include/linux/bcma/bcma_driver_arm_c9.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_BCMA_DRIVER_ARM_C9_H_
 #define LINUX_BCMA_DRIVER_ARM_C9_H_
 
diff --git a/include/linux/bcma/bcma_driver_chipcommon.h b/include/linux/bcma/bcma_driver_chipcommon.h
index 2f1c690..d35b920 100644
--- a/include/linux/bcma/bcma_driver_chipcommon.h
+++ b/include/linux/bcma/bcma_driver_chipcommon.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_BCMA_DRIVER_CC_H_
 #define LINUX_BCMA_DRIVER_CC_H_
 
diff --git a/include/linux/bcma/bcma_driver_gmac_cmn.h b/include/linux/bcma/bcma_driver_gmac_cmn.h
index 4354d4e..420e222d 100644
--- a/include/linux/bcma/bcma_driver_gmac_cmn.h
+++ b/include/linux/bcma/bcma_driver_gmac_cmn.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_BCMA_DRIVER_GMAC_CMN_H_
 #define LINUX_BCMA_DRIVER_GMAC_CMN_H_
 
diff --git a/include/linux/bcma/bcma_driver_mips.h b/include/linux/bcma/bcma_driver_mips.h
index 8eea7f9..798013f 100644
--- a/include/linux/bcma/bcma_driver_mips.h
+++ b/include/linux/bcma/bcma_driver_mips.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_BCMA_DRIVER_MIPS_H_
 #define LINUX_BCMA_DRIVER_MIPS_H_
 
diff --git a/include/linux/bcma/bcma_driver_pci.h b/include/linux/bcma/bcma_driver_pci.h
index bca6a5e..68da8db 100644
--- a/include/linux/bcma/bcma_driver_pci.h
+++ b/include/linux/bcma/bcma_driver_pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_BCMA_DRIVER_PCI_H_
 #define LINUX_BCMA_DRIVER_PCI_H_
 
diff --git a/include/linux/bcma/bcma_driver_pcie2.h b/include/linux/bcma/bcma_driver_pcie2.h
index 31e6d17..91ce515 100644
--- a/include/linux/bcma/bcma_driver_pcie2.h
+++ b/include/linux/bcma/bcma_driver_pcie2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_BCMA_DRIVER_PCIE2_H_
 #define LINUX_BCMA_DRIVER_PCIE2_H_
 
diff --git a/include/linux/bcma/bcma_regs.h b/include/linux/bcma/bcma_regs.h
index 9986f82..944105c 100644
--- a/include/linux/bcma/bcma_regs.h
+++ b/include/linux/bcma/bcma_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_BCMA_REGS_H_
 #define LINUX_BCMA_REGS_H_
 
diff --git a/include/linux/bcma/bcma_soc.h b/include/linux/bcma/bcma_soc.h
index 1b5fc0c..7cca5f8 100644
--- a/include/linux/bcma/bcma_soc.h
+++ b/include/linux/bcma/bcma_soc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_BCMA_SOC_H_
 #define LINUX_BCMA_SOC_H_
 
diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h
index 18d05b5..b0abe21 100644
--- a/include/linux/binfmts.h
+++ b/include/linux/binfmts.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BINFMTS_H
 #define _LINUX_BINFMTS_H
 
diff --git a/include/linux/bit_spinlock.h b/include/linux/bit_spinlock.h
index 3b5bafc..bbc4730 100644
--- a/include/linux/bit_spinlock.h
+++ b/include/linux/bit_spinlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_BIT_SPINLOCK_H
 #define __LINUX_BIT_SPINLOCK_H
 
diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
index 700cf5f..19748a5 100644
--- a/include/linux/bitmap.h
+++ b/include/linux/bitmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_BITMAP_H
 #define __LINUX_BITMAP_H
 
diff --git a/include/linux/bitops.h b/include/linux/bitops.h
index 8fbe259..d03c5dd 100644
--- a/include/linux/bitops.h
+++ b/include/linux/bitops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BITOPS_H
 #define _LINUX_BITOPS_H
 #include <asm/types.h>
diff --git a/include/linux/bitrev.h b/include/linux/bitrev.h
index b97be27..50fb0de 100644
--- a/include/linux/bitrev.h
+++ b/include/linux/bitrev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BITREV_H
 #define _LINUX_BITREV_H
 
diff --git a/include/linux/blk-cgroup.h b/include/linux/blk-cgroup.h
index 9d92153..8bbc371 100644
--- a/include/linux/blk-cgroup.h
+++ b/include/linux/blk-cgroup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BLK_CGROUP_H
 #define _BLK_CGROUP_H
 /*
diff --git a/include/linux/blk-mq-pci.h b/include/linux/blk-mq-pci.h
index 6ab5952..6338551 100644
--- a/include/linux/blk-mq-pci.h
+++ b/include/linux/blk-mq-pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BLK_MQ_PCI_H
 #define _LINUX_BLK_MQ_PCI_H
 
diff --git a/include/linux/blk-mq-virtio.h b/include/linux/blk-mq-virtio.h
index b1ef6e1..69b4da26 100644
--- a/include/linux/blk-mq-virtio.h
+++ b/include/linux/blk-mq-virtio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BLK_MQ_VIRTIO_H
 #define _LINUX_BLK_MQ_VIRTIO_H
 
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index 50c6485..994cbb0 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BLK_MQ_H
 #define BLK_MQ_H
 
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index a2d2aa7..96ac381 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Block data types and constants.  Directly include this file only to
  * break include dependency loop.
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 02fa42d..8da6637 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BLKDEV_H
 #define _LINUX_BLKDEV_H
 
diff --git a/include/linux/blkpg.h b/include/linux/blkpg.h
index bef124f..1c91753 100644
--- a/include/linux/blkpg.h
+++ b/include/linux/blkpg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BLKPG_H
 #define _LINUX_BLKPG_H
 
diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h
index 67b4d4d..8804753 100644
--- a/include/linux/blktrace_api.h
+++ b/include/linux/blktrace_api.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BLKTRACE_H
 #define BLKTRACE_H
 
diff --git a/include/linux/blockgroup_lock.h b/include/linux/blockgroup_lock.h
index 225bdb7..511ab12 100644
--- a/include/linux/blockgroup_lock.h
+++ b/include/linux/blockgroup_lock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BLOCKGROUP_LOCK_H
 #define _LINUX_BLOCKGROUP_LOCK_H
 /*
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index e223d91..fdf40ca 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Discontiguous memory support, Kanoj Sarcar, SGI, Nov 1999
  */
diff --git a/include/linux/bottom_half.h b/include/linux/bottom_half.h
index 8fdcb78..a19519f 100644
--- a/include/linux/bottom_half.h
+++ b/include/linux/bottom_half.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BH_H
 #define _LINUX_BH_H
 
diff --git a/include/linux/bpf-cgroup.h b/include/linux/bpf-cgroup.h
index d41d40a..44dfae2 100644
--- a/include/linux/bpf-cgroup.h
+++ b/include/linux/bpf-cgroup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BPF_CGROUP_H
 #define _BPF_CGROUP_H
 
diff --git a/include/linux/bpf_trace.h b/include/linux/bpf_trace.h
index b22efbd..e6fe98a 100644
--- a/include/linux/bpf_trace.h
+++ b/include/linux/bpf_trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_BPF_TRACE_H__
 #define __LINUX_BPF_TRACE_H__
 
diff --git a/include/linux/bpf_types.h b/include/linux/bpf_types.h
index 6f1a567..e114932 100644
--- a/include/linux/bpf_types.h
+++ b/include/linux/bpf_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* internal file - do not include directly */
 
 #ifdef CONFIG_NET
diff --git a/include/linux/brcmphy.h b/include/linux/brcmphy.h
index abcda9b..4f087f8 100644
--- a/include/linux/brcmphy.h
+++ b/include/linux/brcmphy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BRCMPHY_H
 #define _LINUX_BRCMPHY_H
 
diff --git a/include/linux/bsearch.h b/include/linux/bsearch.h
index 90b1aa8..62b1eb3 100644
--- a/include/linux/bsearch.h
+++ b/include/linux/bsearch.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BSEARCH_H
 #define _LINUX_BSEARCH_H
 
diff --git a/include/linux/bsg.h b/include/linux/bsg.h
index 7173f6e..2a202e4 100644
--- a/include/linux/bsg.h
+++ b/include/linux/bsg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BSG_H
 #define BSG_H
 
diff --git a/include/linux/btree-128.h b/include/linux/btree-128.h
index 0b3414c..22c09f5 100644
--- a/include/linux/btree-128.h
+++ b/include/linux/btree-128.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 extern struct btree_geo btree_geo128;
 
 struct btree_head128 { struct btree_head h; };
diff --git a/include/linux/btree-type.h b/include/linux/btree-type.h
index 9a1147e..fb34a52 100644
--- a/include/linux/btree-type.h
+++ b/include/linux/btree-type.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define __BTREE_TP(pfx, type, sfx)	pfx ## type ## sfx
 #define _BTREE_TP(pfx, type, sfx)	__BTREE_TP(pfx, type, sfx)
 #define BTREE_TP(pfx)			_BTREE_TP(pfx, BTREE_TYPE_SUFFIX,)
diff --git a/include/linux/btree.h b/include/linux/btree.h
index 65b5bb0..68f858c 100644
--- a/include/linux/btree.h
+++ b/include/linux/btree.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BTREE_H
 #define BTREE_H
 
diff --git a/include/linux/btrfs.h b/include/linux/btrfs.h
index 22d7991..9a37a45 100644
--- a/include/linux/btrfs.h
+++ b/include/linux/btrfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BTRFS_H
 #define _LINUX_BTRFS_H
 
diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h
index 446b24c..afa37f8 100644
--- a/include/linux/buffer_head.h
+++ b/include/linux/buffer_head.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/linux/buffer_head.h
  *
diff --git a/include/linux/bug.h b/include/linux/bug.h
index 5d5554c..da4231c 100644
--- a/include/linux/bug.h
+++ b/include/linux/bug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BUG_H
 #define _LINUX_BUG_H
 
diff --git a/include/linux/build_bug.h b/include/linux/build_bug.h
index b7d22d6..3efed0d 100644
--- a/include/linux/build_bug.h
+++ b/include/linux/build_bug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BUILD_BUG_H
 #define _LINUX_BUILD_BUG_H
 
diff --git a/include/linux/byteorder/big_endian.h b/include/linux/byteorder/big_endian.h
index ffd2159..d64a524 100644
--- a/include/linux/byteorder/big_endian.h
+++ b/include/linux/byteorder/big_endian.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BYTEORDER_BIG_ENDIAN_H
 #define _LINUX_BYTEORDER_BIG_ENDIAN_H
 
diff --git a/include/linux/byteorder/generic.h b/include/linux/byteorder/generic.h
index 89f67c1..133b76d 100644
--- a/include/linux/byteorder/generic.h
+++ b/include/linux/byteorder/generic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BYTEORDER_GENERIC_H
 #define _LINUX_BYTEORDER_GENERIC_H
 
diff --git a/include/linux/byteorder/little_endian.h b/include/linux/byteorder/little_endian.h
index ba910bb9..1ec650f 100644
--- a/include/linux/byteorder/little_endian.h
+++ b/include/linux/byteorder/little_endian.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BYTEORDER_LITTLE_ENDIAN_H
 #define _LINUX_BYTEORDER_LITTLE_ENDIAN_H
 
diff --git a/include/linux/cache.h b/include/linux/cache.h
index 1be04f8..750621e 100644
--- a/include/linux/cache.h
+++ b/include/linux/cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_CACHE_H
 #define __LINUX_CACHE_H
 
diff --git a/include/linux/cacheinfo.h b/include/linux/cacheinfo.h
index 6a524bf..3d98052 100644
--- a/include/linux/cacheinfo.h
+++ b/include/linux/cacheinfo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CACHEINFO_H
 #define _LINUX_CACHEINFO_H
 
diff --git a/include/linux/can/core.h b/include/linux/can/core.h
index c9a17bb..6099bc1 100644
--- a/include/linux/can/core.h
+++ b/include/linux/can/core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/can/core.h
  *
diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h
index 141b05a..61f1cf2 100644
--- a/include/linux/can/dev.h
+++ b/include/linux/can/dev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/can/dev.h
  *
diff --git a/include/linux/can/platform/cc770.h b/include/linux/can/platform/cc770.h
index 78b2d44..9587d68 100644
--- a/include/linux/can/platform/cc770.h
+++ b/include/linux/can/platform/cc770.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CAN_PLATFORM_CC770_H
 #define _CAN_PLATFORM_CC770_H
 
diff --git a/include/linux/can/platform/mcp251x.h b/include/linux/can/platform/mcp251x.h
index d44fcae..9e5ac27 100644
--- a/include/linux/can/platform/mcp251x.h
+++ b/include/linux/can/platform/mcp251x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CAN_PLATFORM_MCP251X_H
 #define _CAN_PLATFORM_MCP251X_H
 
diff --git a/include/linux/can/platform/rcar_can.h b/include/linux/can/platform/rcar_can.h
index 0f4a2f3..a43dcd0 100644
--- a/include/linux/can/platform/rcar_can.h
+++ b/include/linux/can/platform/rcar_can.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CAN_PLATFORM_RCAR_CAN_H_
 #define _CAN_PLATFORM_RCAR_CAN_H_
 
diff --git a/include/linux/can/platform/sja1000.h b/include/linux/can/platform/sja1000.h
index 93570b6..5755ae5 100644
--- a/include/linux/can/platform/sja1000.h
+++ b/include/linux/can/platform/sja1000.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CAN_PLATFORM_SJA1000_H
 #define _CAN_PLATFORM_SJA1000_H
 
diff --git a/include/linux/can/skb.h b/include/linux/can/skb.h
index 51bb653..b3379a9 100644
--- a/include/linux/can/skb.h
+++ b/include/linux/can/skb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/can/skb.h
  *
diff --git a/include/linux/capability.h b/include/linux/capability.h
index b52e278..f640dcb 100644
--- a/include/linux/capability.h
+++ b/include/linux/capability.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This is <linux/capability.h>
  *
diff --git a/include/linux/cciss_ioctl.h b/include/linux/cciss_ioctl.h
index 84b6e2d..1d52292 100644
--- a/include/linux/cciss_ioctl.h
+++ b/include/linux/cciss_ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef CCISS_IOCTLH
 #define CCISS_IOCTLH
 
diff --git a/include/linux/cdev.h b/include/linux/cdev.h
index cb28eb2..0e8cd62 100644
--- a/include/linux/cdev.h
+++ b/include/linux/cdev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CDEV_H
 #define _LINUX_CDEV_H
 
diff --git a/include/linux/cdrom.h b/include/linux/cdrom.h
index 6e8f209..e75dfd1 100644
--- a/include/linux/cdrom.h
+++ b/include/linux/cdrom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * -- <linux/cdrom.h>
  * General header file for linux CD-ROM drivers 
diff --git a/include/linux/ceph/auth.h b/include/linux/ceph/auth.h
index a674778..e931da8 100644
--- a/include/linux/ceph/auth.h
+++ b/include/linux/ceph/auth.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FS_CEPH_AUTH_H
 #define _FS_CEPH_AUTH_H
 
diff --git a/include/linux/ceph/buffer.h b/include/linux/ceph/buffer.h
index 07ca15e..5e58bb2 100644
--- a/include/linux/ceph/buffer.h
+++ b/include/linux/ceph/buffer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __FS_CEPH_BUFFER_H
 #define __FS_CEPH_BUFFER_H
 
diff --git a/include/linux/ceph/ceph_debug.h b/include/linux/ceph/ceph_debug.h
index 51c5bd6..d5a5da8 100644
--- a/include/linux/ceph/ceph_debug.h
+++ b/include/linux/ceph/ceph_debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FS_CEPH_DEBUG_H
 #define _FS_CEPH_DEBUG_H
 
diff --git a/include/linux/ceph/ceph_features.h b/include/linux/ceph/ceph_features.h
index 040dd10..59042d5 100644
--- a/include/linux/ceph/ceph_features.h
+++ b/include/linux/ceph/ceph_features.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CEPH_FEATURES
 #define __CEPH_FEATURES
 
diff --git a/include/linux/ceph/ceph_frag.h b/include/linux/ceph/ceph_frag.h
index 146507d..97bab0a 100644
--- a/include/linux/ceph/ceph_frag.h
+++ b/include/linux/ceph/ceph_frag.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef FS_CEPH_FRAG_H
 #define FS_CEPH_FRAG_H
 
diff --git a/include/linux/ceph/ceph_fs.h b/include/linux/ceph/ceph_fs.h
index b422170..88dd513 100644
--- a/include/linux/ceph/ceph_fs.h
+++ b/include/linux/ceph/ceph_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ceph_fs.h - Ceph constants and data types to share between kernel and
  * user space.
diff --git a/include/linux/ceph/ceph_hash.h b/include/linux/ceph/ceph_hash.h
index d099c3f..fda474c 100644
--- a/include/linux/ceph/ceph_hash.h
+++ b/include/linux/ceph/ceph_hash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef FS_CEPH_HASH_H
 #define FS_CEPH_HASH_H
 
diff --git a/include/linux/ceph/cls_lock_client.h b/include/linux/ceph/cls_lock_client.h
index 0594d3bb..bea6c77 100644
--- a/include/linux/ceph/cls_lock_client.h
+++ b/include/linux/ceph/cls_lock_client.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CEPH_CLS_LOCK_CLIENT_H
 #define _LINUX_CEPH_CLS_LOCK_CLIENT_H
 
diff --git a/include/linux/ceph/debugfs.h b/include/linux/ceph/debugfs.h
index 29cf897..fa5f9b7 100644
--- a/include/linux/ceph/debugfs.h
+++ b/include/linux/ceph/debugfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FS_CEPH_DEBUGFS_H
 #define _FS_CEPH_DEBUGFS_H
 
diff --git a/include/linux/ceph/decode.h b/include/linux/ceph/decode.h
index 14af9b7..d143ac8 100644
--- a/include/linux/ceph/decode.h
+++ b/include/linux/ceph/decode.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CEPH_DECODE_H
 #define __CEPH_DECODE_H
 
diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h
index 4c846aa..c2ec44c 100644
--- a/include/linux/ceph/libceph.h
+++ b/include/linux/ceph/libceph.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FS_CEPH_LIBCEPH_H
 #define _FS_CEPH_LIBCEPH_H
 
diff --git a/include/linux/ceph/mdsmap.h b/include/linux/ceph/mdsmap.h
index d5f783f..0067d76 100644
--- a/include/linux/ceph/mdsmap.h
+++ b/include/linux/ceph/mdsmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FS_CEPH_MDSMAP_H
 #define _FS_CEPH_MDSMAP_H
 
diff --git a/include/linux/ceph/messenger.h b/include/linux/ceph/messenger.h
index fbd94d9..ead9d85 100644
--- a/include/linux/ceph/messenger.h
+++ b/include/linux/ceph/messenger.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __FS_CEPH_MESSENGER_H
 #define __FS_CEPH_MESSENGER_H
 
diff --git a/include/linux/ceph/mon_client.h b/include/linux/ceph/mon_client.h
index 0fa990b..3a4688a 100644
--- a/include/linux/ceph/mon_client.h
+++ b/include/linux/ceph/mon_client.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FS_CEPH_MON_CLIENT_H
 #define _FS_CEPH_MON_CLIENT_H
 
diff --git a/include/linux/ceph/msgpool.h b/include/linux/ceph/msgpool.h
index ddd0d48d..76c98a5 100644
--- a/include/linux/ceph/msgpool.h
+++ b/include/linux/ceph/msgpool.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FS_CEPH_MSGPOOL
 #define _FS_CEPH_MSGPOOL
 
diff --git a/include/linux/ceph/msgr.h b/include/linux/ceph/msgr.h
index 0fe2656..73ae2a9 100644
--- a/include/linux/ceph/msgr.h
+++ b/include/linux/ceph/msgr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef CEPH_MSGR_H
 #define CEPH_MSGR_H
 
diff --git a/include/linux/ceph/osd_client.h b/include/linux/ceph/osd_client.h
index adf670e..52fb37d 100644
--- a/include/linux/ceph/osd_client.h
+++ b/include/linux/ceph/osd_client.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FS_CEPH_OSD_CLIENT_H
 #define _FS_CEPH_OSD_CLIENT_H
 
diff --git a/include/linux/ceph/osdmap.h b/include/linux/ceph/osdmap.h
index af3444a..d41fad9 100644
--- a/include/linux/ceph/osdmap.h
+++ b/include/linux/ceph/osdmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FS_CEPH_OSDMAP_H
 #define _FS_CEPH_OSDMAP_H
 
diff --git a/include/linux/ceph/pagelist.h b/include/linux/ceph/pagelist.h
index 75a7db2..7edcded 100644
--- a/include/linux/ceph/pagelist.h
+++ b/include/linux/ceph/pagelist.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __FS_CEPH_PAGELIST_H
 #define __FS_CEPH_PAGELIST_H
 
diff --git a/include/linux/ceph/rados.h b/include/linux/ceph/rados.h
index 0140884..f198838 100644
--- a/include/linux/ceph/rados.h
+++ b/include/linux/ceph/rados.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef CEPH_RADOS_H
 #define CEPH_RADOS_H
 
diff --git a/include/linux/ceph/string_table.h b/include/linux/ceph/string_table.h
index 1b02c96..a4a9962 100644
--- a/include/linux/ceph/string_table.h
+++ b/include/linux/ceph/string_table.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FS_CEPH_STRING_TABLE_H
 #define _FS_CEPH_STRING_TABLE_H
 
diff --git a/include/linux/ceph/types.h b/include/linux/ceph/types.h
index d3ff1cf..27cd973 100644
--- a/include/linux/ceph/types.h
+++ b/include/linux/ceph/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FS_CEPH_TYPES_H
 #define _FS_CEPH_TYPES_H
 
diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h
index ade4a78..1dff0a4 100644
--- a/include/linux/cgroup-defs.h
+++ b/include/linux/cgroup-defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/cgroup-defs.h - basic definitions for cgroup
  *
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index d023ac5..dddbc29 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CGROUP_H
 #define _LINUX_CGROUP_H
 /*
diff --git a/include/linux/cgroup_subsys.h b/include/linux/cgroup_subsys.h
index d0e597c..acb77dcf 100644
--- a/include/linux/cgroup_subsys.h
+++ b/include/linux/cgroup_subsys.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * List of cgroup subsystems.
  *
diff --git a/include/linux/circ_buf.h b/include/linux/circ_buf.h
index 90f2471..7cf262a 100644
--- a/include/linux/circ_buf.h
+++ b/include/linux/circ_buf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * See Documentation/circular-buffers.txt for more information.
  */
diff --git a/include/linux/cleancache.h b/include/linux/cleancache.h
index bbb3712..5f5730c 100644
--- a/include/linux/cleancache.h
+++ b/include/linux/cleancache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CLEANCACHE_H
 #define _LINUX_CLEANCACHE_H
 
diff --git a/include/linux/clk/mmp.h b/include/linux/clk/mmp.h
index 607321f..4451304 100644
--- a/include/linux/clk/mmp.h
+++ b/include/linux/clk/mmp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CLK_MMP_H
 #define __CLK_MMP_H
 
diff --git a/include/linux/clockchips.h b/include/linux/clockchips.h
index a116926..8ae9a95 100644
--- a/include/linux/clockchips.h
+++ b/include/linux/clockchips.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*  linux/include/linux/clockchips.h
  *
  *  This file contains the structure definitions for clockchips.
diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h
index a78cb18..7dff196 100644
--- a/include/linux/clocksource.h
+++ b/include/linux/clocksource.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*  linux/include/linux/clocksource.h
  *
  *  This file contains the structure definitions for clocksources.
diff --git a/include/linux/cm4000_cs.h b/include/linux/cm4000_cs.h
index 88bee3a..ea4958e 100644
--- a/include/linux/cm4000_cs.h
+++ b/include/linux/cm4000_cs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef	_CM4000_H_
 #define	_CM4000_H_
 
diff --git a/include/linux/cma.h b/include/linux/cma.h
index 3e8fbf5..bf90f0b 100644
--- a/include/linux/cma.h
+++ b/include/linux/cma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CMA_H__
 #define __CMA_H__
 
diff --git a/include/linux/cmdline-parser.h b/include/linux/cmdline-parser.h
index 2e6dce6..68a5418 100644
--- a/include/linux/cmdline-parser.h
+++ b/include/linux/cmdline-parser.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Parsing command line, get the partitions information.
  *
diff --git a/include/linux/coda_psdev.h b/include/linux/coda_psdev.h
index 31e4e1f..1517095 100644
--- a/include/linux/coda_psdev.h
+++ b/include/linux/coda_psdev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CODA_PSDEV_H
 #define __CODA_PSDEV_H
 
diff --git a/include/linux/compaction.h b/include/linux/compaction.h
index 0d84158..68250a5 100644
--- a/include/linux/compaction.h
+++ b/include/linux/compaction.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_COMPACTION_H
 #define _LINUX_COMPACTION_H
 
diff --git a/include/linux/compat.h b/include/linux/compat.h
index a5619de..3e838a8 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_COMPAT_H
 #define _LINUX_COMPAT_H
 /*
diff --git a/include/linux/compiler-clang.h b/include/linux/compiler-clang.h
index de17999..54dfef7 100644
--- a/include/linux/compiler-clang.h
+++ b/include/linux/compiler-clang.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_COMPILER_H
 #error "Please don't include <linux/compiler-clang.h> directly, include <linux/compiler.h> instead."
 #endif
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index 16d41de..bb78e5b 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_COMPILER_H
 #error "Please don't include <linux/compiler-gcc.h> directly, include <linux/compiler.h> instead."
 #endif
diff --git a/include/linux/compiler-intel.h b/include/linux/compiler-intel.h
index d4c7113..523d1b7 100644
--- a/include/linux/compiler-intel.h
+++ b/include/linux/compiler-intel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_COMPILER_H
 #error "Please don't include <linux/compiler-intel.h> directly, include <linux/compiler.h> instead."
 #endif
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index e95a263..fd8697a 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_COMPILER_H
 #define __LINUX_COMPILER_H
 
diff --git a/include/linux/completion.h b/include/linux/completion.h
index cae5400..7828451 100644
--- a/include/linux/completion.h
+++ b/include/linux/completion.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_COMPLETION_H
 #define __LINUX_COMPLETION_H
 
diff --git a/include/linux/component.h b/include/linux/component.h
index a559eeb..e71fbbb 100644
--- a/include/linux/component.h
+++ b/include/linux/component.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef COMPONENT_H
 #define COMPONENT_H
 
diff --git a/include/linux/console_struct.h b/include/linux/console_struct.h
index 6fd3c90..c0ec478 100644
--- a/include/linux/console_struct.h
+++ b/include/linux/console_struct.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * console_struct.h
  *
diff --git a/include/linux/consolemap.h b/include/linux/consolemap.h
index c4811da..2542466 100644
--- a/include/linux/consolemap.h
+++ b/include/linux/consolemap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * consolemap.h
  *
diff --git a/include/linux/context_tracking.h b/include/linux/context_tracking.h
index c78fc27..d05609a 100644
--- a/include/linux/context_tracking.h
+++ b/include/linux/context_tracking.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CONTEXT_TRACKING_H
 #define _LINUX_CONTEXT_TRACKING_H
 
diff --git a/include/linux/context_tracking_state.h b/include/linux/context_tracking_state.h
index 1d34fe6..f128dc3 100644
--- a/include/linux/context_tracking_state.h
+++ b/include/linux/context_tracking_state.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CONTEXT_TRACKING_STATE_H
 #define _LINUX_CONTEXT_TRACKING_STATE_H
 
diff --git a/include/linux/coredump.h b/include/linux/coredump.h
index 28ffa94..207aed9 100644
--- a/include/linux/coredump.h
+++ b/include/linux/coredump.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_COREDUMP_H
 #define _LINUX_COREDUMP_H
 
diff --git a/include/linux/coresight-stm.h b/include/linux/coresight-stm.h
index a978bb8..74714b5 100644
--- a/include/linux/coresight-stm.h
+++ b/include/linux/coresight-stm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_CORESIGHT_STM_H_
 #define __LINUX_CORESIGHT_STM_H_
 
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index ca73bc1..938ea8a 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/linux/cpu.h - generic cpu definition
  *
diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h
index 6d50876..2477a5c 100644
--- a/include/linux/cpuhotplug.h
+++ b/include/linux/cpuhotplug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CPUHOTPLUG_H
 #define __CPUHOTPLUG_H
 
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index cd415b7..8d3125c 100644
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_CPUMASK_H
 #define __LINUX_CPUMASK_H
 
diff --git a/include/linux/cpuset.h b/include/linux/cpuset.h
index a1e6a33..1b8e415 100644
--- a/include/linux/cpuset.h
+++ b/include/linux/cpuset.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CPUSET_H
 #define _LINUX_CPUSET_H
 /*
diff --git a/include/linux/crash_core.h b/include/linux/crash_core.h
index 2df2118..06097ef 100644
--- a/include/linux/crash_core.h
+++ b/include/linux/crash_core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_CRASH_CORE_H
 #define LINUX_CRASH_CORE_H
 
diff --git a/include/linux/crash_dump.h b/include/linux/crash_dump.h
index 3873697..a992e6c 100644
--- a/include/linux/crash_dump.h
+++ b/include/linux/crash_dump.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_CRASH_DUMP_H
 #define LINUX_CRASH_DUMP_H
 
diff --git a/include/linux/crc-ccitt.h b/include/linux/crc-ccitt.h
index f52696a..cd4f420 100644
--- a/include/linux/crc-ccitt.h
+++ b/include/linux/crc-ccitt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CRC_CCITT_H
 #define _LINUX_CRC_CCITT_H
 
diff --git a/include/linux/crc-t10dif.h b/include/linux/crc-t10dif.h
index d81961e..1fe0cfc 100644
--- a/include/linux/crc-t10dif.h
+++ b/include/linux/crc-t10dif.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CRC_T10DIF_H
 #define _LINUX_CRC_T10DIF_H
 
diff --git a/include/linux/crc32c.h b/include/linux/crc32c.h
index bd8b44d..357ae46 100644
--- a/include/linux/crc32c.h
+++ b/include/linux/crc32c.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CRC32C_H
 #define _LINUX_CRC32C_H
 
diff --git a/include/linux/crc4.h b/include/linux/crc4.h
index 8f739f1..bd2c905 100644
--- a/include/linux/crc4.h
+++ b/include/linux/crc4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CRC4_H
 #define _LINUX_CRC4_H
 
diff --git a/include/linux/crc7.h b/include/linux/crc7.h
index d590765..b462842 100644
--- a/include/linux/crc7.h
+++ b/include/linux/crc7.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CRC7_H
 #define _LINUX_CRC7_H
 #include <linux/types.h>
diff --git a/include/linux/crush/crush.h b/include/linux/crush/crush.h
index 07eed95..5474129 100644
--- a/include/linux/crush/crush.h
+++ b/include/linux/crush/crush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef CEPH_CRUSH_CRUSH_H
 #define CEPH_CRUSH_CRUSH_H
 
diff --git a/include/linux/crush/hash.h b/include/linux/crush/hash.h
index d1d9025..904df41 100644
--- a/include/linux/crush/hash.h
+++ b/include/linux/crush/hash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef CEPH_CRUSH_HASH_H
 #define CEPH_CRUSH_HASH_H
 
diff --git a/include/linux/crush/mapper.h b/include/linux/crush/mapper.h
index 141edab..f9b9923 100644
--- a/include/linux/crush/mapper.h
+++ b/include/linux/crush/mapper.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef CEPH_CRUSH_MAPPER_H
 #define CEPH_CRUSH_MAPPER_H
 
diff --git a/include/linux/cryptohash.h b/include/linux/cryptohash.h
index df4d3e9..f6ba4c3 100644
--- a/include/linux/cryptohash.h
+++ b/include/linux/cryptohash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CRYPTOHASH_H
 #define __CRYPTOHASH_H
 
diff --git a/include/linux/ctype.h b/include/linux/ctype.h
index f13e4ff..363b004 100644
--- a/include/linux/ctype.h
+++ b/include/linux/ctype.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CTYPE_H
 #define _LINUX_CTYPE_H
 
diff --git a/include/linux/cuda.h b/include/linux/cuda.h
index b723328..056867f 100644
--- a/include/linux/cuda.h
+++ b/include/linux/cuda.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Definitions for talking to the CUDA.  The CUDA is a microcontroller
  * which controls the ADB, system power, RTC, and various other things.
diff --git a/include/linux/cyclades.h b/include/linux/cyclades.h
index 19ae518..83925bd 100644
--- a/include/linux/cyclades.h
+++ b/include/linux/cyclades.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Revision: 3.0 $$Date: 1998/11/02 14:20:59 $
  * linux/include/linux/cyclades.h
  *
diff --git a/include/linux/dax.h b/include/linux/dax.h
index 1221971..895e16f 100644
--- a/include/linux/dax.h
+++ b/include/linux/dax.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_DAX_H
 #define _LINUX_DAX_H
 
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index ed1a7cf..f05a659 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_DCACHE_H
 #define __LINUX_DCACHE_H
 
diff --git a/include/linux/dccp.h b/include/linux/dccp.h
index 6844929..6b64b6c 100644
--- a/include/linux/dccp.h
+++ b/include/linux/dccp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_DCCP_H
 #define _LINUX_DCCP_H
 
diff --git a/include/linux/dcookies.h b/include/linux/dcookies.h
index 699b6c4..ddfdac2 100644
--- a/include/linux/dcookies.h
+++ b/include/linux/dcookies.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * dcookies.h
  *
diff --git a/include/linux/debug_locks.h b/include/linux/debug_locks.h
index 822c135..120225e 100644
--- a/include/linux/debug_locks.h
+++ b/include/linux/debug_locks.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_DEBUG_LOCKING_H
 #define __LINUX_DEBUG_LOCKING_H
 
diff --git a/include/linux/debugobjects.h b/include/linux/debugobjects.h
index d82bf19..afc416e 100644
--- a/include/linux/debugobjects.h
+++ b/include/linux/debugobjects.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_DEBUGOBJECTS_H
 #define _LINUX_DEBUGOBJECTS_H
 
diff --git a/include/linux/decompress/bunzip2.h b/include/linux/decompress/bunzip2.h
index 4d683df..5860163 100644
--- a/include/linux/decompress/bunzip2.h
+++ b/include/linux/decompress/bunzip2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DECOMPRESS_BUNZIP2_H
 #define DECOMPRESS_BUNZIP2_H
 
diff --git a/include/linux/decompress/generic.h b/include/linux/decompress/generic.h
index 1fcfd64..207d801 100644
--- a/include/linux/decompress/generic.h
+++ b/include/linux/decompress/generic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DECOMPRESS_GENERIC_H
 #define DECOMPRESS_GENERIC_H
 
diff --git a/include/linux/decompress/inflate.h b/include/linux/decompress/inflate.h
index e4f411f..b65f24e 100644
--- a/include/linux/decompress/inflate.h
+++ b/include/linux/decompress/inflate.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_DECOMPRESS_INFLATE_H
 #define LINUX_DECOMPRESS_INFLATE_H
 
diff --git a/include/linux/decompress/mm.h b/include/linux/decompress/mm.h
index 7925bf0..868e9ea 100644
--- a/include/linux/decompress/mm.h
+++ b/include/linux/decompress/mm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/compr_mm.h
  *
diff --git a/include/linux/decompress/unlz4.h b/include/linux/decompress/unlz4.h
index 3273c2f..5a235f6 100644
--- a/include/linux/decompress/unlz4.h
+++ b/include/linux/decompress/unlz4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DECOMPRESS_UNLZ4_H
 #define DECOMPRESS_UNLZ4_H
 
diff --git a/include/linux/decompress/unlzma.h b/include/linux/decompress/unlzma.h
index 8a891a1..1c930f1 100644
--- a/include/linux/decompress/unlzma.h
+++ b/include/linux/decompress/unlzma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DECOMPRESS_UNLZMA_H
 #define DECOMPRESS_UNLZMA_H
 
diff --git a/include/linux/decompress/unlzo.h b/include/linux/decompress/unlzo.h
index af18f95..550ae87 100644
--- a/include/linux/decompress/unlzo.h
+++ b/include/linux/decompress/unlzo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DECOMPRESS_UNLZO_H
 #define DECOMPRESS_UNLZO_H
 
diff --git a/include/linux/delay.h b/include/linux/delay.h
index 2ecb3c4..b78bab4 100644
--- a/include/linux/delay.h
+++ b/include/linux/delay.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_DELAY_H
 #define _LINUX_DELAY_H
 
diff --git a/include/linux/delayed_call.h b/include/linux/delayed_call.h
index f7fa76a..a26c3b9 100644
--- a/include/linux/delayed_call.h
+++ b/include/linux/delayed_call.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DELAYED_CALL_H
 #define _DELAYED_CALL_H
 
diff --git a/include/linux/dell-led.h b/include/linux/dell-led.h
index 3f033c4..9252147 100644
--- a/include/linux/dell-led.h
+++ b/include/linux/dell-led.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DELL_LED_H__
 #define __DELL_LED_H__
 
diff --git a/include/linux/device_cgroup.h b/include/linux/device_cgroup.h
index 8b64221..cdbc344 100644
--- a/include/linux/device_cgroup.h
+++ b/include/linux/device_cgroup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/fs.h>
 
 #ifdef CONFIG_CGROUP_DEVICE
diff --git a/include/linux/dio.h b/include/linux/dio.h
index 2cc0fd0..1470d1d 100644
--- a/include/linux/dio.h
+++ b/include/linux/dio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* header file for DIO boards for the HP300 architecture.
  * Maybe this should handle DIO-II later?
  * The general structure of this is vaguely based on how
diff --git a/include/linux/dirent.h b/include/linux/dirent.h
index f072fb8..fc61f3c 100644
--- a/include/linux/dirent.h
+++ b/include/linux/dirent.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_DIRENT_H
 #define _LINUX_DIRENT_H
 
diff --git a/include/linux/dma-direction.h b/include/linux/dma-direction.h
index 95b6a82..3649a03 100644
--- a/include/linux/dma-direction.h
+++ b/include/linux/dma-direction.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_DMA_DIRECTION_H
 #define _LINUX_DMA_DIRECTION_H
 /*
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 29ce981..7653ea6 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_DMA_MAPPING_H
 #define _LINUX_DMA_MAPPING_H
 
diff --git a/include/linux/dma/mmp-pdma.h b/include/linux/dma/mmp-pdma.h
index 2dc9b2b..25cab62 100644
--- a/include/linux/dma/mmp-pdma.h
+++ b/include/linux/dma/mmp-pdma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MMP_PDMA_H_
 #define _MMP_PDMA_H_
 
diff --git a/include/linux/dma/pxa-dma.h b/include/linux/dma/pxa-dma.h
index 3edc992..e56ec7a 100644
--- a/include/linux/dma/pxa-dma.h
+++ b/include/linux/dma/pxa-dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PXA_DMA_H_
 #define _PXA_DMA_H_
 
diff --git a/include/linux/dma_remapping.h b/include/linux/dma_remapping.h
index 9088407..21b3e7d 100644
--- a/include/linux/dma_remapping.h
+++ b/include/linux/dma_remapping.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DMA_REMAPPING_H
 #define _DMA_REMAPPING_H
 
diff --git a/include/linux/dmi.h b/include/linux/dmi.h
index 9bbf21a..46e1511 100644
--- a/include/linux/dmi.h
+++ b/include/linux/dmi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DMI_H__
 #define __DMI_H__
 
diff --git a/include/linux/dnotify.h b/include/linux/dnotify.h
index 3290555..0aad774 100644
--- a/include/linux/dnotify.h
+++ b/include/linux/dnotify.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_DNOTIFY_H
 #define _LINUX_DNOTIFY_H
 /*
diff --git a/include/linux/dqblk_qtree.h b/include/linux/dqblk_qtree.h
index 0de21e9..100d22a 100644
--- a/include/linux/dqblk_qtree.h
+++ b/include/linux/dqblk_qtree.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Definitions of structures and functions for quota formats using trie
  */
diff --git a/include/linux/dqblk_v1.h b/include/linux/dqblk_v1.h
index c0d4d1e..85d837a 100644
--- a/include/linux/dqblk_v1.h
+++ b/include/linux/dqblk_v1.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	File with in-memory structures of old quota format
  */
diff --git a/include/linux/dqblk_v2.h b/include/linux/dqblk_v2.h
index 18000a5..da95932 100644
--- a/include/linux/dqblk_v2.h
+++ b/include/linux/dqblk_v2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Definitions for vfsv0 quota format
  */
diff --git a/include/linux/drbd_genl.h b/include/linux/drbd_genl.h
index 4e6d4d4..53f44b8 100644
--- a/include/linux/drbd_genl.h
+++ b/include/linux/drbd_genl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * General overview:
  * full generic netlink message:
diff --git a/include/linux/drbd_genl_api.h b/include/linux/drbd_genl_api.h
index 9ef50d5..bd62efc 100644
--- a/include/linux/drbd_genl_api.h
+++ b/include/linux/drbd_genl_api.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DRBD_GENL_STRUCT_H
 #define DRBD_GENL_STRUCT_H
 
diff --git a/include/linux/drbd_limits.h b/include/linux/drbd_limits.h
index 24ae1b9..9e33f70 100644
--- a/include/linux/drbd_limits.h
+++ b/include/linux/drbd_limits.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
   drbd_limits.h
   This file is part of DRBD by Philipp Reisner and Lars Ellenberg.
diff --git a/include/linux/ds2782_battery.h b/include/linux/ds2782_battery.h
index b4e281f..fb6c97e 100644
--- a/include/linux/ds2782_battery.h
+++ b/include/linux/ds2782_battery.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_DS2782_BATTERY_H
 #define __LINUX_DS2782_BATTERY_H
 
diff --git a/include/linux/dtlk.h b/include/linux/dtlk.h
index 22a7b9a..27b95e7 100644
--- a/include/linux/dtlk.h
+++ b/include/linux/dtlk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define DTLK_MINOR	0
 #define DTLK_IO_EXTENT	0x02
 
diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h
index 546d680..2fd8006 100644
--- a/include/linux/dynamic_debug.h
+++ b/include/linux/dynamic_debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DYNAMIC_DEBUG_H
 #define _DYNAMIC_DEBUG_H
 
diff --git a/include/linux/dynamic_queue_limits.h b/include/linux/dynamic_queue_limits.h
index a4be703..34c0a54 100644
--- a/include/linux/dynamic_queue_limits.h
+++ b/include/linux/dynamic_queue_limits.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Dynamic queue limits (dql) - Definitions
  *
diff --git a/include/linux/earlycpio.h b/include/linux/earlycpio.h
index 111f46d..c705192 100644
--- a/include/linux/earlycpio.h
+++ b/include/linux/earlycpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_EARLYCPIO_H
 #define _LINUX_EARLYCPIO_H
 
diff --git a/include/linux/ecryptfs.h b/include/linux/ecryptfs.h
index 8d5ab99..91e142a 100644
--- a/include/linux/ecryptfs.h
+++ b/include/linux/ecryptfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_ECRYPTFS_H
 #define _LINUX_ECRYPTFS_H
 
diff --git a/include/linux/eeprom_93xx46.h b/include/linux/eeprom_93xx46.h
index 9158987..eec7928 100644
--- a/include/linux/eeprom_93xx46.h
+++ b/include/linux/eeprom_93xx46.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Module: eeprom_93xx46
  * platform description for 93xx46 EEPROMs.
diff --git a/include/linux/efi-bgrt.h b/include/linux/efi-bgrt.h
index e6f624b..e6cd510 100644
--- a/include/linux/efi-bgrt.h
+++ b/include/linux/efi-bgrt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_EFI_BGRT_H
 #define _LINUX_EFI_BGRT_H
 
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 66f4a4e..d813f7b 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_EFI_H
 #define _LINUX_EFI_H
 
diff --git a/include/linux/efs_vh.h b/include/linux/efs_vh.h
index 8a11150..206c527 100644
--- a/include/linux/efs_vh.h
+++ b/include/linux/efs_vh.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * efs_vh.h
  *
diff --git a/include/linux/eisa.h b/include/linux/eisa.h
index 6925249..b012e30 100644
--- a/include/linux/eisa.h
+++ b/include/linux/eisa.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_EISA_H
 #define _LINUX_EISA_H
 
diff --git a/include/linux/elevator.h b/include/linux/elevator.h
index 5bc8f86..ddb7632 100644
--- a/include/linux/elevator.h
+++ b/include/linux/elevator.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_ELEVATOR_H
 #define _LINUX_ELEVATOR_H
 
diff --git a/include/linux/elf-randomize.h b/include/linux/elf-randomize.h
index b5f0bda..da0dbb7 100644
--- a/include/linux/elf-randomize.h
+++ b/include/linux/elf-randomize.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ELF_RANDOMIZE_H
 #define _ELF_RANDOMIZE_H
 
diff --git a/include/linux/elf.h b/include/linux/elf.h
index ba069e8..e3649b3 100644
--- a/include/linux/elf.h
+++ b/include/linux/elf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_ELF_H
 #define _LINUX_ELF_H
 
diff --git a/include/linux/elfcore-compat.h b/include/linux/elfcore-compat.h
index 0a90e1c..b5f2efd 100644
--- a/include/linux/elfcore-compat.h
+++ b/include/linux/elfcore-compat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_ELFCORE_COMPAT_H
 #define _LINUX_ELFCORE_COMPAT_H
 
diff --git a/include/linux/elfcore.h b/include/linux/elfcore.h
index c8240a1..4cad0e7 100644
--- a/include/linux/elfcore.h
+++ b/include/linux/elfcore.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_ELFCORE_H
 #define _LINUX_ELFCORE_H
 
diff --git a/include/linux/elfnote.h b/include/linux/elfnote.h
index 278e3ef..f236f5b 100644
--- a/include/linux/elfnote.h
+++ b/include/linux/elfnote.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_ELFNOTE_H
 #define _LINUX_ELFNOTE_H
 /*
diff --git a/include/linux/err.h b/include/linux/err.h
index 1e35588..87be243 100644
--- a/include/linux/err.h
+++ b/include/linux/err.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_ERR_H
 #define _LINUX_ERR_H
 
diff --git a/include/linux/errno.h b/include/linux/errno.h
index 7ce9fb1..3cba627 100644
--- a/include/linux/errno.h
+++ b/include/linux/errno.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_ERRNO_H
 #define _LINUX_ERRNO_H
 
diff --git a/include/linux/errqueue.h b/include/linux/errqueue.h
index 6fdfc88..be1cf72 100644
--- a/include/linux/errqueue.h
+++ b/include/linux/errqueue.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_ERRQUEUE_H
 #define _LINUX_ERRQUEUE_H 1
 
diff --git a/include/linux/errseq.h b/include/linux/errseq.h
index f746bd8..6ffae9c 100644
--- a/include/linux/errseq.h
+++ b/include/linux/errseq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * See Documentation/errseq.rst and lib/errseq.c
  */
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index 4587a4c..0c0146e 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ethtool.h: Defines for Linux ethtool.
  *
diff --git a/include/linux/eventfd.h b/include/linux/eventfd.h
index 9e4befd..60b2985 100644
--- a/include/linux/eventfd.h
+++ b/include/linux/eventfd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  include/linux/eventfd.h
  *
diff --git a/include/linux/evm.h b/include/linux/evm.h
index 35ed9a8..8302bc2 100644
--- a/include/linux/evm.h
+++ b/include/linux/evm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * evm.h
  *
diff --git a/include/linux/exportfs.h b/include/linux/exportfs.h
index 5ab958c..0d30374 100644
--- a/include/linux/exportfs.h
+++ b/include/linux/exportfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_EXPORTFS_H
 #define LINUX_EXPORTFS_H 1
 
diff --git a/include/linux/ext2_fs.h b/include/linux/ext2_fs.h
index 2723e71..1fef885 100644
--- a/include/linux/ext2_fs.h
+++ b/include/linux/ext2_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/include/linux/ext2_fs.h
  *
diff --git a/include/linux/extable.h b/include/linux/extable.h
index 28addad..41c5b3a 100644
--- a/include/linux/extable.h
+++ b/include/linux/extable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_EXTABLE_H
 #define _LINUX_EXTABLE_H
 
diff --git a/include/linux/falloc.h b/include/linux/falloc.h
index 7494dc6..674d59f 100644
--- a/include/linux/falloc.h
+++ b/include/linux/falloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FALLOC_H_
 #define _FALLOC_H_
 
diff --git a/include/linux/fanotify.h b/include/linux/fanotify.h
index cef93dd..096c96f 100644
--- a/include/linux/fanotify.h
+++ b/include/linux/fanotify.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FANOTIFY_H
 #define _LINUX_FANOTIFY_H
 
diff --git a/include/linux/fault-inject.h b/include/linux/fault-inject.h
index 728d4e0..c3c95d1 100644
--- a/include/linux/fault-inject.h
+++ b/include/linux/fault-inject.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FAULT_INJECT_H
 #define _LINUX_FAULT_INJECT_H
 
diff --git a/include/linux/fb.h b/include/linux/fb.h
index f4386b0..bc24e48 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FB_H
 #define _LINUX_FB_H
 
diff --git a/include/linux/fcntl.h b/include/linux/fcntl.h
index 1b48d9c..27dc7a6 100644
--- a/include/linux/fcntl.h
+++ b/include/linux/fcntl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FCNTL_H
 #define _LINUX_FCNTL_H
 
diff --git a/include/linux/fd.h b/include/linux/fd.h
index 69275bc..ece5ea5 100644
--- a/include/linux/fd.h
+++ b/include/linux/fd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FD_H
 #define _LINUX_FD_H
 
diff --git a/include/linux/fdtable.h b/include/linux/fdtable.h
index 6e84b2cae..1c65817 100644
--- a/include/linux/fdtable.h
+++ b/include/linux/fdtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * descriptor table internals; you almost certainly want file.h instead.
  */
diff --git a/include/linux/file.h b/include/linux/file.h
index 61eb82c..279720d 100644
--- a/include/linux/file.h
+++ b/include/linux/file.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Wrapper functions for accessing the file_struct fd array.
  */
diff --git a/include/linux/filter.h b/include/linux/filter.h
index 818a0b2..48ec57e 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Linux Socket Filter Data Structures
  */
diff --git a/include/linux/fips.h b/include/linux/fips.h
index f8fb07b..afeeece 100644
--- a/include/linux/fips.h
+++ b/include/linux/fips.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FIPS_H
 #define _FIPS_H
 
diff --git a/include/linux/firewire.h b/include/linux/firewire.h
index d4b7683..aec8f30 100644
--- a/include/linux/firewire.h
+++ b/include/linux/firewire.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FIREWIRE_H
 #define _LINUX_FIREWIRE_H
 
diff --git a/include/linux/firmware.h b/include/linux/firmware.h
index b1f9f0c..d450808 100644
--- a/include/linux/firmware.h
+++ b/include/linux/firmware.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FIRMWARE_H
 #define _LINUX_FIRMWARE_H
 
diff --git a/include/linux/flat.h b/include/linux/flat.h
index 7d542df..569b67d 100644
--- a/include/linux/flat.h
+++ b/include/linux/flat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2002-2003  David McCullough <davidm@snapgear.com>
  * Copyright (C) 1998       Kenneth Albanowski <kjahds@kjahds.com>
diff --git a/include/linux/flex_array.h b/include/linux/flex_array.h
index 11366b3..b94fa61 100644
--- a/include/linux/flex_array.h
+++ b/include/linux/flex_array.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FLEX_ARRAY_H
 #define _FLEX_ARRAY_H
 
diff --git a/include/linux/flex_proportions.h b/include/linux/flex_proportions.h
index 0d348e0..c12df59 100644
--- a/include/linux/flex_proportions.h
+++ b/include/linux/flex_proportions.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Floating proportions with flexible aging period
  *
diff --git a/include/linux/fmc-sdb.h b/include/linux/fmc-sdb.h
index 599bd6b..bec899f 100644
--- a/include/linux/fmc-sdb.h
+++ b/include/linux/fmc-sdb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This file is separate from sdb.h, because I want that one to remain
  * unchanged (as far as possible) from the official sdb distribution
diff --git a/include/linux/fpga/fpga-bridge.h b/include/linux/fpga/fpga-bridge.h
index dba6e3c..aa66c87 100644
--- a/include/linux/fpga/fpga-bridge.h
+++ b/include/linux/fpga/fpga-bridge.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/device.h>
 #include <linux/fpga/fpga-mgr.h>
 
diff --git a/include/linux/frame.h b/include/linux/frame.h
index d772c61..02d3ca2 100644
--- a/include/linux/frame.h
+++ b/include/linux/frame.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FRAME_H
 #define _LINUX_FRAME_H
 
diff --git a/include/linux/freezer.h b/include/linux/freezer.h
index dd03e83..3995df1 100644
--- a/include/linux/freezer.h
+++ b/include/linux/freezer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Freezer declarations */
 
 #ifndef FREEZER_H_INCLUDED
diff --git a/include/linux/frontswap.h b/include/linux/frontswap.h
index 1d18af0..011965c 100644
--- a/include/linux/frontswap.h
+++ b/include/linux/frontswap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FRONTSWAP_H
 #define _LINUX_FRONTSWAP_H
 
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 13dab19..885266a 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FS_H
 #define _LINUX_FS_H
 
diff --git a/include/linux/fs_pin.h b/include/linux/fs_pin.h
index 3886b3b..7cab74d 100644
--- a/include/linux/fs_pin.h
+++ b/include/linux/fs_pin.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/wait.h>
 
 struct fs_pin {
diff --git a/include/linux/fs_stack.h b/include/linux/fs_stack.h
index da317c7..54210a4 100644
--- a/include/linux/fs_stack.h
+++ b/include/linux/fs_stack.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FS_STACK_H
 #define _LINUX_FS_STACK_H
 
diff --git a/include/linux/fs_struct.h b/include/linux/fs_struct.h
index 7a02624..cf1015a 100644
--- a/include/linux/fs_struct.h
+++ b/include/linux/fs_struct.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FS_STRUCT_H
 #define _LINUX_FS_STRUCT_H
 
diff --git a/include/linux/fscrypt_common.h b/include/linux/fscrypt_common.h
index 97f7386..854d724 100644
--- a/include/linux/fscrypt_common.h
+++ b/include/linux/fscrypt_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * fscrypt_common.h: common declarations for per-file encryption
  *
diff --git a/include/linux/fscrypt_notsupp.h b/include/linux/fscrypt_notsupp.h
index ec406ae..19609ce 100644
--- a/include/linux/fscrypt_notsupp.h
+++ b/include/linux/fscrypt_notsupp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * fscrypt_notsupp.h
  *
diff --git a/include/linux/fscrypt_supp.h b/include/linux/fscrypt_supp.h
index 32e2fcf..5153dce 100644
--- a/include/linux/fscrypt_supp.h
+++ b/include/linux/fscrypt_supp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * fscrypt_supp.h
  *
diff --git a/include/linux/fsl/edac.h b/include/linux/fsl/edac.h
index 90d64d4..148a297 100644
--- a/include/linux/fsl/edac.h
+++ b/include/linux/fsl/edac.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef FSL_EDAC_H
 #define FSL_EDAC_H
 
diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h
index b78aa7a..bdaf225 100644
--- a/include/linux/fsnotify.h
+++ b/include/linux/fsnotify.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FS_NOTIFY_H
 #define _LINUX_FS_NOTIFY_H
 
diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h
index c6c6931..3597ef7 100644
--- a/include/linux/fsnotify_backend.h
+++ b/include/linux/fsnotify_backend.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Filesystem access notification for Linux
  *
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 2e02885..e54d257 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Ftrace header.  For implementation details beyond the random comments
  * scattered below, see: Documentation/trace/ftrace-design.txt
diff --git a/include/linux/ftrace_irq.h b/include/linux/ftrace_irq.h
index 4ec2c9b..ccda97d 100644
--- a/include/linux/ftrace_irq.h
+++ b/include/linux/ftrace_irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FTRACE_IRQ_H
 #define _LINUX_FTRACE_IRQ_H
 
diff --git a/include/linux/futex.h b/include/linux/futex.h
index f36bfd2..c0fb9a2 100644
--- a/include/linux/futex.h
+++ b/include/linux/futex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FUTEX_H
 #define _LINUX_FUTEX_H
 
diff --git a/include/linux/gcd.h b/include/linux/gcd.h
index 69f5e8a..cb57267 100644
--- a/include/linux/gcd.h
+++ b/include/linux/gcd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _GCD_H
 #define _GCD_H
 
diff --git a/include/linux/genetlink.h b/include/linux/genetlink.h
index a4c61cb..b96dd4e 100644
--- a/include/linux/genetlink.h
+++ b/include/linux/genetlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_GENERIC_NETLINK_H
 #define __LINUX_GENERIC_NETLINK_H
 
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index ea652bf..4479052 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_GENHD_H
 #define _LINUX_GENHD_H
 
diff --git a/include/linux/genl_magic_func.h b/include/linux/genl_magic_func.h
index 377257d..6049676 100644
--- a/include/linux/genl_magic_func.h
+++ b/include/linux/genl_magic_func.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef GENL_MAGIC_FUNC_H
 #define GENL_MAGIC_FUNC_H
 
diff --git a/include/linux/genl_magic_struct.h b/include/linux/genl_magic_struct.h
index 6270a56..5972e49 100644
--- a/include/linux/genl_magic_struct.h
+++ b/include/linux/genl_magic_struct.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef GENL_MAGIC_STRUCT_H
 #define GENL_MAGIC_STRUCT_H
 
diff --git a/include/linux/getcpu.h b/include/linux/getcpu.h
index c7372d7..c304dcd 100644
--- a/include/linux/getcpu.h
+++ b/include/linux/getcpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_GETCPU_H
 #define _LINUX_GETCPU_H 1
 
diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index f780718..7101437 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_GFP_H
 #define __LINUX_GFP_H
 
diff --git a/include/linux/glob.h b/include/linux/glob.h
index 861d834..861327b 100644
--- a/include/linux/glob.h
+++ b/include/linux/glob.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_GLOB_H
 #define _LINUX_GLOB_H
 
diff --git a/include/linux/goldfish.h b/include/linux/goldfish.h
index 93e080b..2835c15 100644
--- a/include/linux/goldfish.h
+++ b/include/linux/goldfish.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_GOLDFISH_H
 #define __LINUX_GOLDFISH_H
 
diff --git a/include/linux/gpio-pxa.h b/include/linux/gpio-pxa.h
index d90ebbe..1e1fa01 100644
--- a/include/linux/gpio-pxa.h
+++ b/include/linux/gpio-pxa.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __GPIO_PXA_H
 #define __GPIO_PXA_H
 
diff --git a/include/linux/gpio.h b/include/linux/gpio.h
index d12b5d5..8ef7fc0 100644
--- a/include/linux/gpio.h
+++ b/include/linux/gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_GPIO_H
 #define __LINUX_GPIO_H
 
diff --git a/include/linux/gpio/consumer.h b/include/linux/gpio/consumer.h
index 8f702fc..c4a350d 100644
--- a/include/linux/gpio/consumer.h
+++ b/include/linux/gpio/consumer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_GPIO_CONSUMER_H
 #define __LINUX_GPIO_CONSUMER_H
 
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index c97f832..424e513 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_GPIO_DRIVER_H
 #define __LINUX_GPIO_DRIVER_H
 
diff --git a/include/linux/gpio/gpio-reg.h b/include/linux/gpio/gpio-reg.h
index 90e0b90..5c6efd3 100644
--- a/include/linux/gpio/gpio-reg.h
+++ b/include/linux/gpio/gpio-reg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef GPIO_REG_H
 #define GPIO_REG_H
 
diff --git a/include/linux/gpio/machine.h b/include/linux/gpio/machine.h
index ba4ccfd..b722536 100644
--- a/include/linux/gpio/machine.h
+++ b/include/linux/gpio/machine.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_GPIO_MACHINE_H
 #define __LINUX_GPIO_MACHINE_H
 
diff --git a/include/linux/gpio_keys.h b/include/linux/gpio_keys.h
index 0b71024..d06bf77 100644
--- a/include/linux/gpio_keys.h
+++ b/include/linux/gpio_keys.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _GPIO_KEYS_H
 #define _GPIO_KEYS_H
 
diff --git a/include/linux/hardirq.h b/include/linux/hardirq.h
index c683996..0fbbcdf 100644
--- a/include/linux/hardirq.h
+++ b/include/linux/hardirq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_HARDIRQ_H
 #define LINUX_HARDIRQ_H
 
diff --git a/include/linux/hashtable.h b/include/linux/hashtable.h
index 082dc1b..417d2c4 100644
--- a/include/linux/hashtable.h
+++ b/include/linux/hashtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Statically sized hash table implementation
  * (C) 2012  Sasha Levin <levinsasha928@gmail.com>
diff --git a/include/linux/hdlcdrv.h b/include/linux/hdlcdrv.h
index be3be25..d4d633a 100644
--- a/include/linux/hdlcdrv.h
+++ b/include/linux/hdlcdrv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * hdlcdrv.h  -- HDLC packet radio network driver.
  * The Linux soundcard driver for 1200 baud and 9600 baud packet radio
diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index bb3f329..776f90f 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_HIGHMEM_H
 #define _LINUX_HIGHMEM_H
 
diff --git a/include/linux/highuid.h b/include/linux/highuid.h
index 434e562..50d383f 100644
--- a/include/linux/highuid.h
+++ b/include/linux/highuid.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_HIGHUID_H
 #define _LINUX_HIGHUID_H
 
diff --git a/include/linux/hpet.h b/include/linux/hpet.h
index 9427ab4..8604564 100644
--- a/include/linux/hpet.h
+++ b/include/linux/hpet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef	__HPET__
 #define	__HPET__ 1
 
diff --git a/include/linux/htcpld.h b/include/linux/htcpld.h
index ab3f6cb4..842fce6 100644
--- a/include/linux/htcpld.h
+++ b/include/linux/htcpld.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_HTCPLD_H
 #define __LINUX_HTCPLD_H
 
diff --git a/include/linux/htirq.h b/include/linux/htirq.h
index d4a527e..127c39d 100644
--- a/include/linux/htirq.h
+++ b/include/linux/htirq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_HTIRQ_H
 #define LINUX_HTIRQ_H
 
diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
index 14bc21c..87067d2 100644
--- a/include/linux/huge_mm.h
+++ b/include/linux/huge_mm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_HUGE_MM_H
 #define _LINUX_HUGE_MM_H
 
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 8bbbd37..fbf5b31 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_HUGETLB_H
 #define _LINUX_HUGETLB_H
 
diff --git a/include/linux/hugetlb_inline.h b/include/linux/hugetlb_inline.h
index a4e7ca0..0660a03 100644
--- a/include/linux/hugetlb_inline.h
+++ b/include/linux/hugetlb_inline.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_HUGETLB_INLINE_H
 #define _LINUX_HUGETLB_INLINE_H
 
diff --git a/include/linux/hw_breakpoint.h b/include/linux/hw_breakpoint.h
index 0464c85..cf04588 100644
--- a/include/linux/hw_breakpoint.h
+++ b/include/linux/hw_breakpoint.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_HW_BREAKPOINT_H
 #define _LINUX_HW_BREAKPOINT_H
 
diff --git a/include/linux/hypervisor.h b/include/linux/hypervisor.h
index 3fa5ef2..b4054fd 100644
--- a/include/linux/hypervisor.h
+++ b/include/linux/hypervisor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_HYPEVISOR_H
 #define __LINUX_HYPEVISOR_H
 
diff --git a/include/linux/i2c-algo-pca.h b/include/linux/i2c-algo-pca.h
index a3c3ecd..d030717 100644
--- a/include/linux/i2c-algo-pca.h
+++ b/include/linux/i2c-algo-pca.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_I2C_ALGO_PCA_H
 #define _LINUX_I2C_ALGO_PCA_H
 
diff --git a/include/linux/i2c-omap.h b/include/linux/i2c-omap.h
index babe0cf..3444265 100644
--- a/include/linux/i2c-omap.h
+++ b/include/linux/i2c-omap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __I2C_OMAP_H__
 #define __I2C_OMAP_H__
 
diff --git a/include/linux/i2c-pca-platform.h b/include/linux/i2c-pca-platform.h
index aba3375..0e5f7c7 100644
--- a/include/linux/i2c-pca-platform.h
+++ b/include/linux/i2c-pca-platform.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef I2C_PCA9564_PLATFORM_H
 #define I2C_PCA9564_PLATFORM_H
 
diff --git a/include/linux/i2c-pxa.h b/include/linux/i2c-pxa.h
index 41dcdfe..a897e2b 100644
--- a/include/linux/i2c-pxa.h
+++ b/include/linux/i2c-pxa.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_I2C_ALGO_PXA_H
 #define _LINUX_I2C_ALGO_PXA_H
 
diff --git a/include/linux/i7300_idle.h b/include/linux/i7300_idle.h
index 1587b7d..4dbe651 100644
--- a/include/linux/i7300_idle.h
+++ b/include/linux/i7300_idle.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef I7300_IDLE_H
 #define I7300_IDLE_H
diff --git a/include/linux/icmpv6.h b/include/linux/icmpv6.h
index 57086e9..a8f8889 100644
--- a/include/linux/icmpv6.h
+++ b/include/linux/icmpv6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_ICMPV6_H
 #define _LINUX_ICMPV6_H
 
diff --git a/include/linux/ide.h b/include/linux/ide.h
index dc152e4..70db3af 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IDE_H
 #define _IDE_H
 /*
diff --git a/include/linux/if_link.h b/include/linux/if_link.h
index 0b17c58..4c54611 100644
--- a/include/linux/if_link.h
+++ b/include/linux/if_link.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IF_LINK_H
 #define _LINUX_IF_LINK_H
 
diff --git a/include/linux/if_ltalk.h b/include/linux/if_ltalk.h
index 81e434c..4cc1c0b 100644
--- a/include/linux/if_ltalk.h
+++ b/include/linux/if_ltalk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_LTALK_H
 #define __LINUX_LTALK_H
 
diff --git a/include/linux/if_macvlan.h b/include/linux/if_macvlan.h
index c9ec134..0e2c60e 100644
--- a/include/linux/if_macvlan.h
+++ b/include/linux/if_macvlan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IF_MACVLAN_H
 #define _LINUX_IF_MACVLAN_H
 
diff --git a/include/linux/if_phonet.h b/include/linux/if_phonet.h
index bbcdb0a..3b5c60d 100644
--- a/include/linux/if_phonet.h
+++ b/include/linux/if_phonet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * File: if_phonet.h
  *
diff --git a/include/linux/if_tap.h b/include/linux/if_tap.h
index 4837157..0d7b56d 100644
--- a/include/linux/if_tap.h
+++ b/include/linux/if_tap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IF_TAP_H_
 #define _LINUX_IF_TAP_H_
 
diff --git a/include/linux/if_tunnel.h b/include/linux/if_tunnel.h
index 712710b..2660652 100644
--- a/include/linux/if_tunnel.h
+++ b/include/linux/if_tunnel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IF_TUNNEL_H_
 #define _IF_TUNNEL_H_
 
diff --git a/include/linux/ihex.h b/include/linux/ihex.h
index 31d8629..75c1943 100644
--- a/include/linux/ihex.h
+++ b/include/linux/ihex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Compact binary representation of ihex records. Some devices need their
  * firmware loaded in strange orders rather than a single big blob, but
diff --git a/include/linux/iio/buffer_impl.h b/include/linux/iio/buffer_impl.h
index 8daba19..b9e22b7 100644
--- a/include/linux/iio/buffer_impl.h
+++ b/include/linux/iio/buffer_impl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IIO_BUFFER_GENERIC_IMPL_H_
 #define _IIO_BUFFER_GENERIC_IMPL_H_
 #include <linux/sysfs.h>
diff --git a/include/linux/iio/dac/ad5421.h b/include/linux/iio/dac/ad5421.h
index 8fd8f05..d8ee9a7 100644
--- a/include/linux/iio/dac/ad5421.h
+++ b/include/linux/iio/dac/ad5421.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IIO_DAC_AD5421_H__
 #define __IIO_DAC_AD5421_H__
 
diff --git a/include/linux/iio/kfifo_buf.h b/include/linux/iio/kfifo_buf.h
index 027cfa9..764659e 100644
--- a/include/linux/iio/kfifo_buf.h
+++ b/include/linux/iio/kfifo_buf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_IIO_KFIFO_BUF_H__
 #define __LINUX_IIO_KFIFO_BUF_H__
 
diff --git a/include/linux/iio/magnetometer/ak8975.h b/include/linux/iio/magnetometer/ak8975.h
index c840095..ac9366f 100644
--- a/include/linux/iio/magnetometer/ak8975.h
+++ b/include/linux/iio/magnetometer/ak8975.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IIO_MAGNETOMETER_AK8975_H__
 #define __IIO_MAGNETOMETER_AK8975_H__
 
diff --git a/include/linux/iio/triggered_buffer.h b/include/linux/iio/triggered_buffer.h
index 3014561..238ad30 100644
--- a/include/linux/iio/triggered_buffer.h
+++ b/include/linux/iio/triggered_buffer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IIO_TRIGGERED_BUFFER_H_
 #define _LINUX_IIO_TRIGGERED_BUFFER_H_
 
diff --git a/include/linux/iio/triggered_event.h b/include/linux/iio/triggered_event.h
index 8fe8537..13250fd 100644
--- a/include/linux/iio/triggered_event.h
+++ b/include/linux/iio/triggered_event.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IIO_TRIGGERED_EVENT_H_
 #define _LINUX_IIO_TRIGGERED_EVENT_H_
 
diff --git a/include/linux/inet_diag.h b/include/linux/inet_diag.h
index ee251c5..39faaaf 100644
--- a/include/linux/inet_diag.h
+++ b/include/linux/inet_diag.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _INET_DIAG_H_
 #define _INET_DIAG_H_ 1
 
diff --git a/include/linux/inetdevice.h b/include/linux/inetdevice.h
index fb3f809..5058f06 100644
--- a/include/linux/inetdevice.h
+++ b/include/linux/inetdevice.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_INETDEVICE_H
 #define _LINUX_INETDEVICE_H
 
diff --git a/include/linux/init.h b/include/linux/init.h
index 94769d6..f38b993 100644
--- a/include/linux/init.h
+++ b/include/linux/init.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_INIT_H
 #define _LINUX_INIT_H
 
diff --git a/include/linux/init_ohci1394_dma.h b/include/linux/init_ohci1394_dma.h
index 3c03a4b..228afca 100644
--- a/include/linux/init_ohci1394_dma.h
+++ b/include/linux/init_ohci1394_dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef CONFIG_PROVIDE_OHCI1394_DMA_INIT
 extern int __initdata init_ohci1394_dma_early;
 extern void __init init_ohci1394_dma_on_all_controllers(void);
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index 3c07ace..8062e6c 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX__INIT_TASK_H
 #define _LINUX__INIT_TASK_H
 
diff --git a/include/linux/initrd.h b/include/linux/initrd.h
index bc67b76..84b4230 100644
--- a/include/linux/initrd.h
+++ b/include/linux/initrd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #define INITRD_MINOR 250 /* shouldn't collide with /dev/ram* too soon ... */
 
diff --git a/include/linux/inotify.h b/include/linux/inotify.h
index 23aede0..44f9ffe 100644
--- a/include/linux/inotify.h
+++ b/include/linux/inotify.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Inode based directory notification for Linux
  *
diff --git a/include/linux/input/cy8ctmg110_pdata.h b/include/linux/input/cy8ctmg110_pdata.h
index 09522cb..77582ae 100644
--- a/include/linux/input/cy8ctmg110_pdata.h
+++ b/include/linux/input/cy8ctmg110_pdata.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CY8CTMG110_PDATA_H
 #define _LINUX_CY8CTMG110_PDATA_H
 
diff --git a/include/linux/input/gp2ap002a00f.h b/include/linux/input/gp2ap002a00f.h
index aad2fd4..3614a13 100644
--- a/include/linux/input/gp2ap002a00f.h
+++ b/include/linux/input/gp2ap002a00f.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _GP2AP002A00F_H_
 #define _GP2AP002A00F_H_
 
diff --git a/include/linux/input/gpio_tilt.h b/include/linux/input/gpio_tilt.h
index c1cc52d..f9d9324 100644
--- a/include/linux/input/gpio_tilt.h
+++ b/include/linux/input/gpio_tilt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _INPUT_GPIO_TILT_H
 #define _INPUT_GPIO_TILT_H
 
diff --git a/include/linux/input/ili210x.h b/include/linux/input/ili210x.h
index a547124..b76e7c1 100644
--- a/include/linux/input/ili210x.h
+++ b/include/linux/input/ili210x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ILI210X_H
 #define _ILI210X_H
 
diff --git a/include/linux/input/matrix_keypad.h b/include/linux/input/matrix_keypad.h
index 6174733..9476768 100644
--- a/include/linux/input/matrix_keypad.h
+++ b/include/linux/input/matrix_keypad.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MATRIX_KEYPAD_H
 #define _MATRIX_KEYPAD_H
 
diff --git a/include/linux/input/sh_keysc.h b/include/linux/input/sh_keysc.h
index 5d253cd..b3c4f3b 100644
--- a/include/linux/input/sh_keysc.h
+++ b/include/linux/input/sh_keysc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SH_KEYSC_H__
 #define __SH_KEYSC_H__
 
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 59ba116..baeb872 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* interrupt.h */
 #ifndef _LINUX_INTERRUPT_H
 #define _LINUX_INTERRUPT_H
diff --git a/include/linux/interval_tree.h b/include/linux/interval_tree.h
index 202ee12..288c26f 100644
--- a/include/linux/interval_tree.h
+++ b/include/linux/interval_tree.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_INTERVAL_TREE_H
 #define _LINUX_INTERVAL_TREE_H
 
diff --git a/include/linux/io-64-nonatomic-hi-lo.h b/include/linux/io-64-nonatomic-hi-lo.h
index defcc46..862d786 100644
--- a/include/linux/io-64-nonatomic-hi-lo.h
+++ b/include/linux/io-64-nonatomic-hi-lo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IO_64_NONATOMIC_HI_LO_H_
 #define _LINUX_IO_64_NONATOMIC_HI_LO_H_
 
diff --git a/include/linux/io-64-nonatomic-lo-hi.h b/include/linux/io-64-nonatomic-lo-hi.h
index 084461a..d042e7b 100644
--- a/include/linux/io-64-nonatomic-lo-hi.h
+++ b/include/linux/io-64-nonatomic-lo-hi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IO_64_NONATOMIC_LO_HI_H_
 #define _LINUX_IO_64_NONATOMIC_LO_HI_H_
 
diff --git a/include/linux/iocontext.h b/include/linux/iocontext.h
index df38db2..dba15ca 100644
--- a/include/linux/iocontext.h
+++ b/include/linux/iocontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef IOCONTEXT_H
 #define IOCONTEXT_H
 
diff --git a/include/linux/iomap.h b/include/linux/iomap.h
index f64dc6c..8a7c6d2 100644
--- a/include/linux/iomap.h
+++ b/include/linux/iomap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_IOMAP_H
 #define LINUX_IOMAP_H 1
 
diff --git a/include/linux/iommu-common.h b/include/linux/iommu-common.h
index 376a27c..802c90c 100644
--- a/include/linux/iommu-common.h
+++ b/include/linux/iommu-common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IOMMU_COMMON_H
 #define _LINUX_IOMMU_COMMON_H
 
diff --git a/include/linux/iommu-helper.h b/include/linux/iommu-helper.h
index 86bdeff..cb9a924 100644
--- a/include/linux/iommu-helper.h
+++ b/include/linux/iommu-helper.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IOMMU_HELPER_H
 #define _LINUX_IOMMU_HELPER_H
 
diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index f5cf32e..83c8d65 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ioport.h	Definitions of routines for detecting, reserving and
  *		allocating system resources.
diff --git a/include/linux/ioprio.h b/include/linux/ioprio.h
index 8c12390..2cdd748 100644
--- a/include/linux/ioprio.h
+++ b/include/linux/ioprio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef IOPRIO_H
 #define IOPRIO_H
 
diff --git a/include/linux/ipc.h b/include/linux/ipc.h
index 92a2ccf..821b2f2 100644
--- a/include/linux/ipc.h
+++ b/include/linux/ipc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IPC_H
 #define _LINUX_IPC_H
 
diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h
index 83f0bf7a..474812a 100644
--- a/include/linux/ipc_namespace.h
+++ b/include/linux/ipc_namespace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IPC_NAMESPACE_H__
 #define __IPC_NAMESPACE_H__
 
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index ac2da4e..ea04ca0 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IPV6_H
 #define _IPV6_H
 
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 5ad1094..4536286 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IRQ_H
 #define _LINUX_IRQ_H
 
diff --git a/include/linux/irq_cpustat.h b/include/linux/irq_cpustat.h
index 77e4bac..4954948 100644
--- a/include/linux/irq_cpustat.h
+++ b/include/linux/irq_cpustat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __irq_cpustat_h
 #define __irq_cpustat_h
 
diff --git a/include/linux/irq_poll.h b/include/linux/irq_poll.h
index 3e8c1b8..16aaecc 100644
--- a/include/linux/irq_poll.h
+++ b/include/linux/irq_poll.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef IRQ_POLL_H
 #define IRQ_POLL_H
 
diff --git a/include/linux/irq_work.h b/include/linux/irq_work.h
index 47b9ebd..9270d73 100644
--- a/include/linux/irq_work.h
+++ b/include/linux/irq_work.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IRQ_WORK_H
 #define _LINUX_IRQ_WORK_H
 
diff --git a/include/linux/irqchip/metag-ext.h b/include/linux/irqchip/metag-ext.h
index 697af0f..d120496 100644
--- a/include/linux/irqchip/metag-ext.h
+++ b/include/linux/irqchip/metag-ext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2012 Imagination Technologies
  */
diff --git a/include/linux/irqchip/metag.h b/include/linux/irqchip/metag.h
index 4ebdfb3..0adcf44 100644
--- a/include/linux/irqchip/metag.h
+++ b/include/linux/irqchip/metag.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2011 Imagination Technologies
  */
diff --git a/include/linux/irqchip/mmp.h b/include/linux/irqchip/mmp.h
index c78a892..cb8455c 100644
--- a/include/linux/irqchip/mmp.h
+++ b/include/linux/irqchip/mmp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef	__IRQCHIP_MMP_H
 #define	__IRQCHIP_MMP_H
 
diff --git a/include/linux/irqchip/versatile-fpga.h b/include/linux/irqchip/versatile-fpga.h
index 1fac965..a978fc8 100644
--- a/include/linux/irqchip/versatile-fpga.h
+++ b/include/linux/irqchip/versatile-fpga.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PLAT_FPGA_IRQ_H
 #define PLAT_FPGA_IRQ_H
 
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h
index 3e90a09..b608489 100644
--- a/include/linux/irqdesc.h
+++ b/include/linux/irqdesc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IRQDESC_H
 #define _LINUX_IRQDESC_H
 
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index 81e4889..b1037df 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * irq_domain - IRQ translation domains
  *
diff --git a/include/linux/irqflags.h b/include/linux/irqflags.h
index 5fdd93b..46cb57d 100644
--- a/include/linux/irqflags.h
+++ b/include/linux/irqflags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/linux/irqflags.h
  *
diff --git a/include/linux/irqhandler.h b/include/linux/irqhandler.h
index 661bed0..1e6f4e7 100644
--- a/include/linux/irqhandler.h
+++ b/include/linux/irqhandler.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IRQHANDLER_H
 #define _LINUX_IRQHANDLER_H
 
diff --git a/include/linux/irqnr.h b/include/linux/irqnr.h
index 9669bf9..3496baa 100644
--- a/include/linux/irqnr.h
+++ b/include/linux/irqnr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IRQNR_H
 #define _LINUX_IRQNR_H
 
diff --git a/include/linux/irqreturn.h b/include/linux/irqreturn.h
index eb1bdcf..bd4c066 100644
--- a/include/linux/irqreturn.h
+++ b/include/linux/irqreturn.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IRQRETURN_H
 #define _LINUX_IRQRETURN_H
 
diff --git a/include/linux/isa.h b/include/linux/isa.h
index f2d0258..41336da 100644
--- a/include/linux/isa.h
+++ b/include/linux/isa.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ISA bus.
  */
diff --git a/include/linux/isicom.h b/include/linux/isicom.h
index b92e056..7de6822 100644
--- a/include/linux/isicom.h
+++ b/include/linux/isicom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_ISICOM_H
 #define _LINUX_ISICOM_H
 
diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h
index 734377a..9385aa5 100644
--- a/include/linux/jiffies.h
+++ b/include/linux/jiffies.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_JIFFIES_H
 #define _LINUX_JIFFIES_H
 
diff --git a/include/linux/journal-head.h b/include/linux/journal-head.h
index 98cd41b..9fb8705 100644
--- a/include/linux/journal-head.h
+++ b/include/linux/journal-head.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/linux/journal-head.h
  *
diff --git a/include/linux/jump_label.h b/include/linux/jump_label.h
index cd58616..3b7675b 100644
--- a/include/linux/jump_label.h
+++ b/include/linux/jump_label.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_JUMP_LABEL_H
 #define _LINUX_JUMP_LABEL_H
 
diff --git a/include/linux/jump_label_ratelimit.h b/include/linux/jump_label_ratelimit.h
index 23da3af..fc13ff2 100644
--- a/include/linux/jump_label_ratelimit.h
+++ b/include/linux/jump_label_ratelimit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_JUMP_LABEL_RATELIMIT_H
 #define _LINUX_JUMP_LABEL_RATELIMIT_H
 
diff --git a/include/linux/jz4740-adc.h b/include/linux/jz4740-adc.h
index 8184578..19d995c 100644
--- a/include/linux/jz4740-adc.h
+++ b/include/linux/jz4740-adc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef __LINUX_JZ4740_ADC
 #define __LINUX_JZ4740_ADC
diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
index 6883e19..11dd93e 100644
--- a/include/linux/kallsyms.h
+++ b/include/linux/kallsyms.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Rewritten and vastly simplified by Rusty Russell for in-kernel
  * module loader:
  *   Copyright 2002 Rusty Russell <rusty@rustcorp.com.au> IBM Corporation
diff --git a/include/linux/kasan-checks.h b/include/linux/kasan-checks.h
index 41960fe..d314150 100644
--- a/include/linux/kasan-checks.h
+++ b/include/linux/kasan-checks.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_KASAN_CHECKS_H
 #define _LINUX_KASAN_CHECKS_H
 
diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index a5c7046..5017269 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_KASAN_H
 #define _LINUX_KASAN_H
 
diff --git a/include/linux/kbd_diacr.h b/include/linux/kbd_diacr.h
index 7274ec6..738c734 100644
--- a/include/linux/kbd_diacr.h
+++ b/include/linux/kbd_diacr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DIACR_H
 #define _DIACR_H
 #include <linux/kd.h>
diff --git a/include/linux/kbd_kern.h b/include/linux/kbd_kern.h
index cbfb171..bb2246c 100644
--- a/include/linux/kbd_kern.h
+++ b/include/linux/kbd_kern.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _KBD_KERN_H
 #define _KBD_KERN_H
 
diff --git a/include/linux/kbuild.h b/include/linux/kbuild.h
index 4e80f3a..e7be517 100644
--- a/include/linux/kbuild.h
+++ b/include/linux/kbuild.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_KBUILD_H
 #define __LINUX_KBUILD_H
 
diff --git a/include/linux/kconfig.h b/include/linux/kconfig.h
index 4d74860..fec5076 100644
--- a/include/linux/kconfig.h
+++ b/include/linux/kconfig.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_KCONFIG_H
 #define __LINUX_KCONFIG_H
 
diff --git a/include/linux/kcore.h b/include/linux/kcore.h
index d927622..7ff25a8 100644
--- a/include/linux/kcore.h
+++ b/include/linux/kcore.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * /proc/kcore definitions
  */
diff --git a/include/linux/kcov.h b/include/linux/kcov.h
index 2883ac9..f5d8ce4 100644
--- a/include/linux/kcov.h
+++ b/include/linux/kcov.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_KCOV_H
 #define _LINUX_KCOV_H
 
diff --git a/include/linux/kd.h b/include/linux/kd.h
index 25bd17f..b130a18 100644
--- a/include/linux/kd.h
+++ b/include/linux/kd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_KD_H
 #define _LINUX_KD_H
 
diff --git a/include/linux/kdebug.h b/include/linux/kdebug.h
index ed81509..fd31156 100644
--- a/include/linux/kdebug.h
+++ b/include/linux/kdebug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_KDEBUG_H
 #define _LINUX_KDEBUG_H
 
diff --git a/include/linux/kdev_t.h b/include/linux/kdev_t.h
index 8e9e288b..85b5151 100644
--- a/include/linux/kdev_t.h
+++ b/include/linux/kdev_t.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_KDEV_T_H
 #define _LINUX_KDEV_T_H
 
diff --git a/include/linux/kern_levels.h b/include/linux/kern_levels.h
index f282d4e..d237fe8 100644
--- a/include/linux/kern_levels.h
+++ b/include/linux/kern_levels.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __KERN_LEVELS_H__
 #define __KERN_LEVELS_H__
 
diff --git a/include/linux/kernel-page-flags.h b/include/linux/kernel-page-flags.h
index f65ce09..abd20ef9 100644
--- a/include/linux/kernel-page-flags.h
+++ b/include/linux/kernel-page-flags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_KERNEL_PAGE_FLAGS_H
 #define LINUX_KERNEL_PAGE_FLAGS_H
 
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 91189bb..4b484ab 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_KERNEL_H
 #define _LINUX_KERNEL_H
 
diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h
index 66be8b6..7ee2bb4 100644
--- a/include/linux/kernel_stat.h
+++ b/include/linux/kernel_stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_KERNEL_STAT_H
 #define _LINUX_KERNEL_STAT_H
 
diff --git a/include/linux/kernelcapi.h b/include/linux/kernelcapi.h
index e985ba6..075fab5 100644
--- a/include/linux/kernelcapi.h
+++ b/include/linux/kernelcapi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * $Id: kernelcapi.h,v 1.8.6.2 2001/02/07 11:31:31 kai Exp $
  * 
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index 2b7590f..1c08c92 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_KEXEC_H
 #define LINUX_KEXEC_H
 
diff --git a/include/linux/keyboard.h b/include/linux/keyboard.h
index 131ed51..73d11e4 100644
--- a/include/linux/keyboard.h
+++ b/include/linux/keyboard.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_KEYBOARD_H
 #define __LINUX_KEYBOARD_H
 
diff --git a/include/linux/khugepaged.h b/include/linux/khugepaged.h
index f0d7335..082d1d2 100644
--- a/include/linux/khugepaged.h
+++ b/include/linux/khugepaged.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_KHUGEPAGED_H
 #define _LINUX_KHUGEPAGED_H
 
diff --git a/include/linux/kmemcheck.h b/include/linux/kmemcheck.h
index 39f8453..7b1d7be 100644
--- a/include/linux/kmemcheck.h
+++ b/include/linux/kmemcheck.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_KMEMCHECK_H
 #define LINUX_KMEMCHECK_H
 
diff --git a/include/linux/kobj_map.h b/include/linux/kobj_map.h
index 18ca75f..c9919f8 100644
--- a/include/linux/kobj_map.h
+++ b/include/linux/kobj_map.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * kobj_map.h
  */
diff --git a/include/linux/ksm.h b/include/linux/ksm.h
index 78b44a0..44368b1 100644
--- a/include/linux/ksm.h
+++ b/include/linux/ksm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_KSM_H
 #define __LINUX_KSM_H
 /*
diff --git a/include/linux/kthread.h b/include/linux/kthread.h
index 82e197e..4e26609 100644
--- a/include/linux/kthread.h
+++ b/include/linux/kthread.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_KTHREAD_H
 #define _LINUX_KTHREAD_H
 /* Simple interface for creating and stopping kernel threads without mess. */
diff --git a/include/linux/kvm_para.h b/include/linux/kvm_para.h
index 35e568f..51f6ef2 100644
--- a/include/linux/kvm_para.h
+++ b/include/linux/kvm_para.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_KVM_PARA_H
 #define __LINUX_KVM_PARA_H
 
diff --git a/include/linux/l2tp.h b/include/linux/l2tp.h
index bffdb96..0402eda 100644
--- a/include/linux/l2tp.h
+++ b/include/linux/l2tp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * L2TP-over-IP socket for L2TPv3.
  *
diff --git a/include/linux/lapb.h b/include/linux/lapb.h
index 873c1eb..eb56472 100644
--- a/include/linux/lapb.h
+++ b/include/linux/lapb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * These are the public elements of the Linux LAPB module.
  */
diff --git a/include/linux/latencytop.h b/include/linux/latencytop.h
index 59ccab2..7c560e0 100644
--- a/include/linux/latencytop.h
+++ b/include/linux/latencytop.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * latencytop.h: Infrastructure for displaying latency
  *
diff --git a/include/linux/lcd.h b/include/linux/lcd.h
index 504f624..851eee8 100644
--- a/include/linux/lcd.h
+++ b/include/linux/lcd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * LCD Lowlevel Control Abstraction
  *
diff --git a/include/linux/lcm.h b/include/linux/lcm.h
index 1ce79a7..0db3efd 100644
--- a/include/linux/lcm.h
+++ b/include/linux/lcm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LCM_H
 #define _LCM_H
 
diff --git a/include/linux/leds_pwm.h b/include/linux/leds_pwm.h
index a65e964..93d101d 100644
--- a/include/linux/leds_pwm.h
+++ b/include/linux/leds_pwm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * PWM LED driver data - see drivers/leds/leds-pwm.c
  */
diff --git a/include/linux/libfdt.h b/include/linux/libfdt.h
index 4c0306c..27ba06e 100644
--- a/include/linux/libfdt.h
+++ b/include/linux/libfdt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _INCLUDE_LIBFDT_H_
 #define _INCLUDE_LIBFDT_H_
 
diff --git a/include/linux/libfdt_env.h b/include/linux/libfdt_env.h
index 2a663c6..1499728 100644
--- a/include/linux/libfdt_env.h
+++ b/include/linux/libfdt_env.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LIBFDT_ENV_H
 #define _LIBFDT_ENV_H
 
diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h
index 7dfa56e..a29a8db 100644
--- a/include/linux/lightnvm.h
+++ b/include/linux/lightnvm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef NVM_H
 #define NVM_H
 
diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index a6a42dd..2e6f90b 100644
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_LINKAGE_H
 #define _LINUX_LINKAGE_H
 
diff --git a/include/linux/linux_logo.h b/include/linux/linux_logo.h
index ca5bd91..5e3581d 100644
--- a/include/linux/linux_logo.h
+++ b/include/linux/linux_logo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_LINUX_LOGO_H
 #define _LINUX_LINUX_LOGO_H
 
diff --git a/include/linux/lis3lv02d.h b/include/linux/lis3lv02d.h
index f1664c6..b72b8cd 100644
--- a/include/linux/lis3lv02d.h
+++ b/include/linux/lis3lv02d.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LIS3LV02D_H_
 #define __LIS3LV02D_H_
 
diff --git a/include/linux/list.h b/include/linux/list.h
index ae537fa..4b129df 100644
--- a/include/linux/list.h
+++ b/include/linux/list.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_LIST_H
 #define _LINUX_LIST_H
 
diff --git a/include/linux/list_bl.h b/include/linux/list_bl.h
index cb48330..3fc2cc5 100644
--- a/include/linux/list_bl.h
+++ b/include/linux/list_bl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_LIST_BL_H
 #define _LINUX_LIST_BL_H
 
diff --git a/include/linux/list_lru.h b/include/linux/list_lru.h
index fa7fd03..bb8129a 100644
--- a/include/linux/list_lru.h
+++ b/include/linux/list_lru.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (c) 2013 Red Hat, Inc. and Parallels Inc. All rights reserved.
  * Authors: David Chinner and Glauber Costa
diff --git a/include/linux/list_nulls.h b/include/linux/list_nulls.h
index 87ff4f5..3ef9674 100644
--- a/include/linux/list_nulls.h
+++ b/include/linux/list_nulls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_LIST_NULLS_H
 #define _LINUX_LIST_NULLS_H
 
diff --git a/include/linux/list_sort.h b/include/linux/list_sort.h
index 1a2df2e..ba79956 100644
--- a/include/linux/list_sort.h
+++ b/include/linux/list_sort.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_LIST_SORT_H
 #define _LINUX_LIST_SORT_H
 
diff --git a/include/linux/lockd/bind.h b/include/linux/lockd/bind.h
index 0572839..053a4ef 100644
--- a/include/linux/lockd/bind.h
+++ b/include/linux/lockd/bind.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/lockd/bind.h
  *
diff --git a/include/linux/lockd/debug.h b/include/linux/lockd/debug.h
index 0ca8109..e536c57 100644
--- a/include/linux/lockd/debug.h
+++ b/include/linux/lockd/debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/lockd/debug.h
  *
diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h
index 3eca677..d7d313f 100644
--- a/include/linux/lockd/lockd.h
+++ b/include/linux/lockd/lockd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/lockd/lockd.h
  *
diff --git a/include/linux/lockd/nlm.h b/include/linux/lockd/nlm.h
index d9d46e4..6e343ef 100644
--- a/include/linux/lockd/nlm.h
+++ b/include/linux/lockd/nlm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/lockd/nlm.h
  *
diff --git a/include/linux/lockd/share.h b/include/linux/lockd/share.h
index 630c5bf..1f18a9f 100644
--- a/include/linux/lockd/share.h
+++ b/include/linux/lockd/share.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/lockd/share.h
  *
diff --git a/include/linux/lockd/xdr.h b/include/linux/lockd/xdr.h
index 7acbecc..7ab9f26 100644
--- a/include/linux/lockd/xdr.h
+++ b/include/linux/lockd/xdr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/lockd/xdr.h
  *
diff --git a/include/linux/lockd/xdr4.h b/include/linux/lockd/xdr4.h
index bf16456..e709fe5 100644
--- a/include/linux/lockd/xdr4.h
+++ b/include/linux/lockd/xdr4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/lockd/xdr4.h
  *
diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index bfa8e0b..f301d31 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Runtime locking correctness validator
  *
diff --git a/include/linux/lockref.h b/include/linux/lockref.h
index b10b122d..ef3c934 100644
--- a/include/linux/lockref.h
+++ b/include/linux/lockref.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_LOCKREF_H
 #define __LINUX_LOCKREF_H
 
diff --git a/include/linux/lp.h b/include/linux/lp.h
index 0dd276a..be8a07e 100644
--- a/include/linux/lp.h
+++ b/include/linux/lp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * usr/include/linux/lp.h c.1991-1992 James Wiegand
  * many modifications copyright (C) 1992 Michael K. Johnson
diff --git a/include/linux/lsm_audit.h b/include/linux/lsm_audit.h
index d1c2901..915330a 100644
--- a/include/linux/lsm_audit.h
+++ b/include/linux/lsm_audit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Common LSM logging functions
  * Heavily borrowed from selinux/avc.h
diff --git a/include/linux/lzo.h b/include/linux/lzo.h
index a0848d93..2ae27cb 100644
--- a/include/linux/lzo.h
+++ b/include/linux/lzo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LZO_H__
 #define __LZO_H__
 /*
diff --git a/include/linux/mISDNdsp.h b/include/linux/mISDNdsp.h
index 41d1eeb..00758f4 100644
--- a/include/linux/mISDNdsp.h
+++ b/include/linux/mISDNdsp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __mISDNdsp_H__
 #define __mISDNdsp_H__
 
diff --git a/include/linux/maple.h b/include/linux/maple.h
index c37288b..9b14027 100644
--- a/include/linux/maple.h
+++ b/include/linux/maple.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_MAPLE_H
 #define __LINUX_MAPLE_H
 
diff --git a/include/linux/marvell_phy.h b/include/linux/marvell_phy.h
index 4055cf8..4f5f8c2 100644
--- a/include/linux/marvell_phy.h
+++ b/include/linux/marvell_phy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MARVELL_PHY_H
 #define _MARVELL_PHY_H
 
diff --git a/include/linux/math64.h b/include/linux/math64.h
index 80690c9..082de34 100644
--- a/include/linux/math64.h
+++ b/include/linux/math64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MATH64_H
 #define _LINUX_MATH64_H
 
diff --git a/include/linux/mbcache.h b/include/linux/mbcache.h
index e1bc734..20f1e3f 100644
--- a/include/linux/mbcache.h
+++ b/include/linux/mbcache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MBCACHE_H
 #define _LINUX_MBCACHE_H
 
diff --git a/include/linux/mc6821.h b/include/linux/mc6821.h
index 28e301e..8dffab1 100644
--- a/include/linux/mc6821.h
+++ b/include/linux/mc6821.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MC6821_H_
 #define _MC6821_H_
 
diff --git a/include/linux/mdio-bitbang.h b/include/linux/mdio-bitbang.h
index 76f52bb..a8ac9cf 100644
--- a/include/linux/mdio-bitbang.h
+++ b/include/linux/mdio-bitbang.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_MDIO_BITBANG_H
 #define __LINUX_MDIO_BITBANG_H
 
diff --git a/include/linux/mei_cl_bus.h b/include/linux/mei_cl_bus.h
index a0d274f..7fde40e 100644
--- a/include/linux/mei_cl_bus.h
+++ b/include/linux/mei_cl_bus.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MEI_CL_BUS_H
 #define _LINUX_MEI_CL_BUS_H
 
diff --git a/include/linux/memory.h b/include/linux/memory.h
index b723a68..f71e732 100644
--- a/include/linux/memory.h
+++ b/include/linux/memory.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/linux/memory.h - generic memory definition
  *
diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h
index 0995e1a..58e110a 100644
--- a/include/linux/memory_hotplug.h
+++ b/include/linux/memory_hotplug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_MEMORY_HOTPLUG_H
 #define __LINUX_MEMORY_HOTPLUG_H
 
diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h
index 3a58b4b..5228c62 100644
--- a/include/linux/mempolicy.h
+++ b/include/linux/mempolicy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * NUMA memory policies for Linux.
  * Copyright 2003,2004 Andi Kleen SuSE Labs
diff --git a/include/linux/mempool.h b/include/linux/mempool.h
index b1086c9..b51f5c4 100644
--- a/include/linux/mempool.h
+++ b/include/linux/mempool.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * memory buffer pool support
  */
diff --git a/include/linux/memremap.h b/include/linux/memremap.h
index 79f8ba7..10d23c3 100644
--- a/include/linux/memremap.h
+++ b/include/linux/memremap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MEMREMAP_H_
 #define _LINUX_MEMREMAP_H_
 #include <linux/mm.h>
diff --git a/include/linux/mfd/da903x.h b/include/linux/mfd/da903x.h
index 0aa3a1a..d1c57b8 100644
--- a/include/linux/mfd/da903x.h
+++ b/include/linux/mfd/da903x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_PMIC_DA903X_H
 #define __LINUX_PMIC_DA903X_H
 
diff --git a/include/linux/mfd/dln2.h b/include/linux/mfd/dln2.h
index 004b245..4cade9a 100644
--- a/include/linux/mfd/dln2.h
+++ b/include/linux/mfd/dln2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_USB_DLN2_H
 #define __LINUX_USB_DLN2_H
 
diff --git a/include/linux/mfd/ds1wm.h b/include/linux/mfd/ds1wm.h
index 2227c6a..43dfca1 100644
--- a/include/linux/mfd/ds1wm.h
+++ b/include/linux/mfd/ds1wm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* MFD cell driver data for the DS1WM driver
  *
  * to be defined in the MFD device that is
diff --git a/include/linux/mfd/ezx-pcap.h b/include/linux/mfd/ezx-pcap.h
index 32a1b5c..ffde195 100644
--- a/include/linux/mfd/ezx-pcap.h
+++ b/include/linux/mfd/ezx-pcap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright 2009 Daniel Ribeiro <drwyrm@gmail.com>
  *
diff --git a/include/linux/mfd/imx25-tsadc.h b/include/linux/mfd/imx25-tsadc.h
index 7fe4b8c..21f8adf 100644
--- a/include/linux/mfd/imx25-tsadc.h
+++ b/include/linux/mfd/imx25-tsadc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_INCLUDE_MFD_IMX25_TSADC_H_
 #define _LINUX_INCLUDE_MFD_IMX25_TSADC_H_
 
diff --git a/include/linux/mfd/ipaq-micro.h b/include/linux/mfd/ipaq-micro.h
index 5c4d29f..ee48a43 100644
--- a/include/linux/mfd/ipaq-micro.h
+++ b/include/linux/mfd/ipaq-micro.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Header file for the compaq Micro MFD
  */
diff --git a/include/linux/mfd/menelaus.h b/include/linux/mfd/menelaus.h
index 9e85ac0..ce489ab 100644
--- a/include/linux/mfd/menelaus.h
+++ b/include/linux/mfd/menelaus.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Functions to access Menelaus power management chip
  */
diff --git a/include/linux/mfd/pcf50633/pmic.h b/include/linux/mfd/pcf50633/pmic.h
index 2d3dbe5..eac0c3d 100644
--- a/include/linux/mfd/pcf50633/pmic.h
+++ b/include/linux/mfd/pcf50633/pmic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_MFD_PCF50633_PMIC_H
 #define __LINUX_MFD_PCF50633_PMIC_H
 
diff --git a/include/linux/mfd/qcom_rpm.h b/include/linux/mfd/qcom_rpm.h
index 742ebf1..4b6b644 100644
--- a/include/linux/mfd/qcom_rpm.h
+++ b/include/linux/mfd/qcom_rpm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __QCOM_RPM_H__
 #define __QCOM_RPM_H__
 
diff --git a/include/linux/mfd/rdc321x.h b/include/linux/mfd/rdc321x.h
index 442743a..697933b 100644
--- a/include/linux/mfd/rdc321x.h
+++ b/include/linux/mfd/rdc321x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __RDC321X_MFD_H
 #define __RDC321X_MFD_H
 
diff --git a/include/linux/mfd/tmio.h b/include/linux/mfd/tmio.h
index 1564674..e1cfe91 100644
--- a/include/linux/mfd/tmio.h
+++ b/include/linux/mfd/tmio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef MFD_TMIO_H
 #define MFD_TMIO_H
 
diff --git a/include/linux/mfd/tps6586x.h b/include/linux/mfd/tps6586x.h
index 96187ed..2fe68e4 100644
--- a/include/linux/mfd/tps6586x.h
+++ b/include/linux/mfd/tps6586x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_MFD_TPS6586X_H
 #define __LINUX_MFD_TPS6586X_H
 
diff --git a/include/linux/migrate.h b/include/linux/migrate.h
index 643c7ae..895ec0c 100644
--- a/include/linux/migrate.h
+++ b/include/linux/migrate.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MIGRATE_H
 #define _LINUX_MIGRATE_H
 
diff --git a/include/linux/migrate_mode.h b/include/linux/migrate_mode.h
index bdf66af..883c992 100644
--- a/include/linux/migrate_mode.h
+++ b/include/linux/migrate_mode.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef MIGRATE_MODE_H_INCLUDED
 #define MIGRATE_MODE_H_INCLUDED
 /*
diff --git a/include/linux/mii.h b/include/linux/mii.h
index e870bfa..55000ee 100644
--- a/include/linux/mii.h
+++ b/include/linux/mii.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/mii.h: definitions for MII-compatible transceivers
  * Originally drivers/net/sunhme.h.
diff --git a/include/linux/miscdevice.h b/include/linux/miscdevice.h
index 58751ea..4de703d 100644
--- a/include/linux/miscdevice.h
+++ b/include/linux/miscdevice.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MISCDEVICE_H
 #define _LINUX_MISCDEVICE_H
 #include <linux/major.h>
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 065d99d..43edf65 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MM_H
 #define _LINUX_MM_H
 
diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h
index 25438b2..c30b32e 100644
--- a/include/linux/mm_inline.h
+++ b/include/linux/mm_inline.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_MM_INLINE_H
 #define LINUX_MM_INLINE_H
 
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 1861ea8..c85f11d 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MM_TYPES_H
 #define _LINUX_MM_TYPES_H
 
diff --git a/include/linux/mm_types_task.h b/include/linux/mm_types_task.h
index fc412fb..5fe8768 100644
--- a/include/linux/mm_types_task.h
+++ b/include/linux/mm_types_task.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MM_TYPES_TASK_H
 #define _LINUX_MM_TYPES_TASK_H
 
diff --git a/include/linux/mman.h b/include/linux/mman.h
index c836704..7c87b66 100644
--- a/include/linux/mman.h
+++ b/include/linux/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MMAN_H
 #define _LINUX_MMAN_H
 
diff --git a/include/linux/mmc/sdhci-pci-data.h b/include/linux/mmc/sdhci-pci-data.h
index fda15b6..36f986d 100644
--- a/include/linux/mmc/sdhci-pci-data.h
+++ b/include/linux/mmc/sdhci-pci-data.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_MMC_SDHCI_PCI_DATA_H
 #define LINUX_MMC_SDHCI_PCI_DATA_H
 
diff --git a/include/linux/mmc/sdio_ids.h b/include/linux/mmc/sdio_ids.h
index abacd54..cdd66a5 100644
--- a/include/linux/mmc/sdio_ids.h
+++ b/include/linux/mmc/sdio_ids.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * SDIO Classes, Interface Types, Manufacturer IDs, etc.
  */
diff --git a/include/linux/mmdebug.h b/include/linux/mmdebug.h
index 451a811..57b0030 100644
--- a/include/linux/mmdebug.h
+++ b/include/linux/mmdebug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_MM_DEBUG_H
 #define LINUX_MM_DEBUG_H 1
 
diff --git a/include/linux/mmiotrace.h b/include/linux/mmiotrace.h
index 3ba327a..8823684 100644
--- a/include/linux/mmiotrace.h
+++ b/include/linux/mmiotrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MMIOTRACE_H
 #define _LINUX_MMIOTRACE_H
 
diff --git a/include/linux/mmu_context.h b/include/linux/mmu_context.h
index a444178..d9a543a 100644
--- a/include/linux/mmu_context.h
+++ b/include/linux/mmu_context.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MMU_CONTEXT_H
 #define _LINUX_MMU_CONTEXT_H
 
diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h
index 6866e81..2cf1c3c 100644
--- a/include/linux/mmu_notifier.h
+++ b/include/linux/mmu_notifier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MMU_NOTIFIER_H
 #define _LINUX_MMU_NOTIFIER_H
 
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index c8f8941..c9c4a81 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MMZONE_H
 #define _LINUX_MMZONE_H
 
diff --git a/include/linux/mnt_namespace.h b/include/linux/mnt_namespace.h
index 12b2ab5..3594208 100644
--- a/include/linux/mnt_namespace.h
+++ b/include/linux/mnt_namespace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NAMESPACE_H_
 #define _NAMESPACE_H_
 #ifdef __KERNEL__
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 2657f9f..1c2e8d6 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Device tables which are exported to userspace via
  * scripts/mod/file2alias.c.  You must keep that file in sync with this
diff --git a/include/linux/moduleloader.h b/include/linux/moduleloader.h
index 4d0cb9b..31013c2 100644
--- a/include/linux/moduleloader.h
+++ b/include/linux/moduleloader.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MODULELOADER_H
 #define _LINUX_MODULELOADER_H
 /* The stuff needed for archs to support modules. */
diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
index 1ee7b30..1d7140f 100644
--- a/include/linux/moduleparam.h
+++ b/include/linux/moduleparam.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MODULE_PARAMS_H
 #define _LINUX_MODULE_PARAMS_H
 /* (C) Copyright 2001, 2002 Rusty Russell IBM Corporation */
diff --git a/include/linux/mount.h b/include/linux/mount.h
index 1ce85e6..45b1f56 100644
--- a/include/linux/mount.h
+++ b/include/linux/mount.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *
  * Definitions for mount interface. This describes the in the kernel build 
diff --git a/include/linux/mpage.h b/include/linux/mpage.h
index 068a0c9..001f1fc 100644
--- a/include/linux/mpage.h
+++ b/include/linux/mpage.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/linux/mpage.h
  *
diff --git a/include/linux/mpls.h b/include/linux/mpls.h
index 384fb22..ae1a188 100644
--- a/include/linux/mpls.h
+++ b/include/linux/mpls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MPLS_H
 #define _LINUX_MPLS_H
 
diff --git a/include/linux/mpls_iptunnel.h b/include/linux/mpls_iptunnel.h
index ef29eb2..140c569 100644
--- a/include/linux/mpls_iptunnel.h
+++ b/include/linux/mpls_iptunnel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MPLS_IPTUNNEL_H
 #define _LINUX_MPLS_IPTUNNEL_H
 
diff --git a/include/linux/mroute.h b/include/linux/mroute.h
index d7f6333..65a70a7 100644
--- a/include/linux/mroute.h
+++ b/include/linux/mroute.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_MROUTE_H
 #define __LINUX_MROUTE_H
 
diff --git a/include/linux/mroute6.h b/include/linux/mroute6.h
index ce44e3e..3014c52 100644
--- a/include/linux/mroute6.h
+++ b/include/linux/mroute6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_MROUTE6_H
 #define __LINUX_MROUTE6_H
 
diff --git a/include/linux/msdos_fs.h b/include/linux/msdos_fs.h
index e1b163f9..b7a5d4c 100644
--- a/include/linux/msdos_fs.h
+++ b/include/linux/msdos_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MSDOS_FS_H
 #define _LINUX_MSDOS_FS_H
 
diff --git a/include/linux/msg.h b/include/linux/msg.h
index 81263fe..0a7eefe 100644
--- a/include/linux/msg.h
+++ b/include/linux/msg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MSG_H
 #define _LINUX_MSG_H
 
diff --git a/include/linux/msi.h b/include/linux/msi.h
index 80e3b56..cdd069c 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_MSI_H
 #define LINUX_MSI_H
 
diff --git a/include/linux/mtd/inftl.h b/include/linux/mtd/inftl.h
index 8255118..fdfff87 100644
--- a/include/linux/mtd/inftl.h
+++ b/include/linux/mtd/inftl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	inftl.h -- defines to support the Inverse NAND Flash Translation Layer
  *
diff --git a/include/linux/mtd/mtdram.h b/include/linux/mtd/mtdram.h
index 628a6a2..ee8f956 100644
--- a/include/linux/mtd/mtdram.h
+++ b/include/linux/mtd/mtdram.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MTD_MTDRAM_H__
 #define __MTD_MTDRAM_H__
 
diff --git a/include/linux/mtd/nand-gpio.h b/include/linux/mtd/nand-gpio.h
index be4f45d..fdef72d 100644
--- a/include/linux/mtd/nand-gpio.h
+++ b/include/linux/mtd/nand-gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_MTD_NAND_GPIO_H
 #define __LINUX_MTD_NAND_GPIO_H
 
diff --git a/include/linux/mtd/pfow.h b/include/linux/mtd/pfow.h
index 42ff7ff0..122f343 100644
--- a/include/linux/mtd/pfow.h
+++ b/include/linux/mtd/pfow.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Primary function overlay window definitions
  * and service functions used by LPDDR chips
  */
diff --git a/include/linux/mtd/qinfo.h b/include/linux/mtd/qinfo.h
index b532ce5..df5b9fd 100644
--- a/include/linux/mtd/qinfo.h
+++ b/include/linux/mtd/qinfo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_MTD_QINFO_H
 #define __LINUX_MTD_QINFO_H
 
diff --git a/include/linux/mutex.h b/include/linux/mutex.h
index ffcba1f..153274f 100644
--- a/include/linux/mutex.h
+++ b/include/linux/mutex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Mutexes: blocking mutual exclusion locks
  *
diff --git a/include/linux/mv643xx_eth.h b/include/linux/mv643xx_eth.h
index 61a0da3..3682ae7 100644
--- a/include/linux/mv643xx_eth.h
+++ b/include/linux/mv643xx_eth.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * MV-643XX ethernet platform device data definition file.
  */
diff --git a/include/linux/namei.h b/include/linux/namei.h
index 8b4794e..a982bb7 100644
--- a/include/linux/namei.h
+++ b/include/linux/namei.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_NAMEI_H
 #define _LINUX_NAMEI_H
 
diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h
index f84bca1..b24e9b1 100644
--- a/include/linux/netfilter.h
+++ b/include/linux/netfilter.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_NETFILTER_H
 #define __LINUX_NETFILTER_H
 
diff --git a/include/linux/netfilter/ipset/ip_set_bitmap.h b/include/linux/netfilter/ipset/ip_set_bitmap.h
index 366d6c0..2dddbc6 100644
--- a/include/linux/netfilter/ipset/ip_set_bitmap.h
+++ b/include/linux/netfilter/ipset/ip_set_bitmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IP_SET_BITMAP_H
 #define __IP_SET_BITMAP_H
 
diff --git a/include/linux/netfilter/ipset/ip_set_getport.h b/include/linux/netfilter/ipset/ip_set_getport.h
index 90d0930..ac6a11d 100644
--- a/include/linux/netfilter/ipset/ip_set_getport.h
+++ b/include/linux/netfilter/ipset/ip_set_getport.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IP_SET_GETPORT_H
 #define _IP_SET_GETPORT_H
 
diff --git a/include/linux/netfilter/ipset/ip_set_hash.h b/include/linux/netfilter/ipset/ip_set_hash.h
index f98ddfb..838abab 100644
--- a/include/linux/netfilter/ipset/ip_set_hash.h
+++ b/include/linux/netfilter/ipset/ip_set_hash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IP_SET_HASH_H
 #define __IP_SET_HASH_H
 
diff --git a/include/linux/netfilter/ipset/ip_set_list.h b/include/linux/netfilter/ipset/ip_set_list.h
index fe2622a..a61fe2a 100644
--- a/include/linux/netfilter/ipset/ip_set_list.h
+++ b/include/linux/netfilter/ipset/ip_set_list.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IP_SET_LIST_H
 #define __IP_SET_LIST_H
 
diff --git a/include/linux/netfilter/ipset/pfxlen.h b/include/linux/netfilter/ipset/pfxlen.h
index 1afbb94..f59094e 100644
--- a/include/linux/netfilter/ipset/pfxlen.h
+++ b/include/linux/netfilter/ipset/pfxlen.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PFXLEN_H
 #define _PFXLEN_H
 
diff --git a/include/linux/netfilter/nf_conntrack_amanda.h b/include/linux/netfilter/nf_conntrack_amanda.h
index 4b59a158..34345e5 100644
--- a/include/linux/netfilter/nf_conntrack_amanda.h
+++ b/include/linux/netfilter/nf_conntrack_amanda.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_AMANDA_H
 #define _NF_CONNTRACK_AMANDA_H
 /* AMANDA tracking. */
diff --git a/include/linux/netfilter/nf_conntrack_common.h b/include/linux/netfilter/nf_conntrack_common.h
index 1d1ef4e..03097fa 100644
--- a/include/linux/netfilter/nf_conntrack_common.h
+++ b/include/linux/netfilter/nf_conntrack_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_COMMON_H
 #define _NF_CONNTRACK_COMMON_H
 
diff --git a/include/linux/netfilter/nf_conntrack_dccp.h b/include/linux/netfilter/nf_conntrack_dccp.h
index ff721d7..ace0f95 100644
--- a/include/linux/netfilter/nf_conntrack_dccp.h
+++ b/include/linux/netfilter/nf_conntrack_dccp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_DCCP_H
 #define _NF_CONNTRACK_DCCP_H
 
diff --git a/include/linux/netfilter/nf_conntrack_ftp.h b/include/linux/netfilter/nf_conntrack_ftp.h
index 5f818b0..73a296d 100644
--- a/include/linux/netfilter/nf_conntrack_ftp.h
+++ b/include/linux/netfilter/nf_conntrack_ftp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_FTP_H
 #define _NF_CONNTRACK_FTP_H
 
diff --git a/include/linux/netfilter/nf_conntrack_h323.h b/include/linux/netfilter/nf_conntrack_h323.h
index 858d9b2..f76ed37 100644
--- a/include/linux/netfilter/nf_conntrack_h323.h
+++ b/include/linux/netfilter/nf_conntrack_h323.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_H323_H
 #define _NF_CONNTRACK_H323_H
 
diff --git a/include/linux/netfilter/nf_conntrack_irc.h b/include/linux/netfilter/nf_conntrack_irc.h
index 4bb9bae..00c2b74 100644
--- a/include/linux/netfilter/nf_conntrack_irc.h
+++ b/include/linux/netfilter/nf_conntrack_irc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_IRC_H
 #define _NF_CONNTRACK_IRC_H
 
diff --git a/include/linux/netfilter/nf_conntrack_pptp.h b/include/linux/netfilter/nf_conntrack_pptp.h
index 2ab2830..833a5b2 100644
--- a/include/linux/netfilter/nf_conntrack_pptp.h
+++ b/include/linux/netfilter/nf_conntrack_pptp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* PPTP constants and structs */
 #ifndef _NF_CONNTRACK_PPTP_H
 #define _NF_CONNTRACK_PPTP_H
diff --git a/include/linux/netfilter/nf_conntrack_proto_gre.h b/include/linux/netfilter/nf_conntrack_proto_gre.h
index dee0acd..b8d9556 100644
--- a/include/linux/netfilter/nf_conntrack_proto_gre.h
+++ b/include/linux/netfilter/nf_conntrack_proto_gre.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CONNTRACK_PROTO_GRE_H
 #define _CONNTRACK_PROTO_GRE_H
 #include <asm/byteorder.h>
diff --git a/include/linux/netfilter/nf_conntrack_sane.h b/include/linux/netfilter/nf_conntrack_sane.h
index 4767d6e..7d2de44 100644
--- a/include/linux/netfilter/nf_conntrack_sane.h
+++ b/include/linux/netfilter/nf_conntrack_sane.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_SANE_H
 #define _NF_CONNTRACK_SANE_H
 /* SANE tracking. */
diff --git a/include/linux/netfilter/nf_conntrack_sctp.h b/include/linux/netfilter/nf_conntrack_sctp.h
index 22a16a2..9a33f17 100644
--- a/include/linux/netfilter/nf_conntrack_sctp.h
+++ b/include/linux/netfilter/nf_conntrack_sctp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_SCTP_H
 #define _NF_CONNTRACK_SCTP_H
 /* SCTP tracking. */
diff --git a/include/linux/netfilter/nf_conntrack_sip.h b/include/linux/netfilter/nf_conntrack_sip.h
index d5af3c2..c7fc388 100644
--- a/include/linux/netfilter/nf_conntrack_sip.h
+++ b/include/linux/netfilter/nf_conntrack_sip.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NF_CONNTRACK_SIP_H__
 #define __NF_CONNTRACK_SIP_H__
 #ifdef __KERNEL__
diff --git a/include/linux/netfilter/nf_conntrack_snmp.h b/include/linux/netfilter/nf_conntrack_snmp.h
index 064bc63..818088c 100644
--- a/include/linux/netfilter/nf_conntrack_snmp.h
+++ b/include/linux/netfilter/nf_conntrack_snmp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_SNMP_H
 #define _NF_CONNTRACK_SNMP_H
 
diff --git a/include/linux/netfilter/nf_conntrack_tcp.h b/include/linux/netfilter/nf_conntrack_tcp.h
index 22db961..f9e3a66 100644
--- a/include/linux/netfilter/nf_conntrack_tcp.h
+++ b/include/linux/netfilter/nf_conntrack_tcp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_TCP_H
 #define _NF_CONNTRACK_TCP_H
 
diff --git a/include/linux/netfilter/nf_conntrack_tftp.h b/include/linux/netfilter/nf_conntrack_tftp.h
index c78d38f..5769e12 100644
--- a/include/linux/netfilter/nf_conntrack_tftp.h
+++ b/include/linux/netfilter/nf_conntrack_tftp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_TFTP_H
 #define _NF_CONNTRACK_TFTP_H
 
diff --git a/include/linux/netfilter/nf_conntrack_zones_common.h b/include/linux/netfilter/nf_conntrack_zones_common.h
index 5d7cf36..8f3905e1 100644
--- a/include/linux/netfilter/nf_conntrack_zones_common.h
+++ b/include/linux/netfilter/nf_conntrack_zones_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_ZONES_COMMON_H
 #define _NF_CONNTRACK_ZONES_COMMON_H
 
diff --git a/include/linux/netfilter/nfnetlink.h b/include/linux/netfilter/nfnetlink.h
index 41d04e9..414a5e7 100644
--- a/include/linux/netfilter/nfnetlink.h
+++ b/include/linux/netfilter/nfnetlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NFNETLINK_H
 #define _NFNETLINK_H
 
diff --git a/include/linux/netfilter/nfnetlink_acct.h b/include/linux/netfilter/nfnetlink_acct.h
index 664da00..b4d7411 100644
--- a/include/linux/netfilter/nfnetlink_acct.h
+++ b/include/linux/netfilter/nfnetlink_acct.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NFNL_ACCT_H_
 #define _NFNL_ACCT_H_
 
diff --git a/include/linux/netfilter/x_tables.h b/include/linux/netfilter/x_tables.h
index b3044c2c..33f7530 100644
--- a/include/linux/netfilter/x_tables.h
+++ b/include/linux/netfilter/x_tables.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _X_TABLES_H
 #define _X_TABLES_H
 
diff --git a/include/linux/netfilter/xt_hashlimit.h b/include/linux/netfilter/xt_hashlimit.h
index 0fc458b..169d0398 100644
--- a/include/linux/netfilter/xt_hashlimit.h
+++ b/include/linux/netfilter/xt_hashlimit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _XT_HASHLIMIT_H
 #define _XT_HASHLIMIT_H
 
diff --git a/include/linux/netfilter/xt_physdev.h b/include/linux/netfilter/xt_physdev.h
index 5b5e417..4ca0593 100644
--- a/include/linux/netfilter/xt_physdev.h
+++ b/include/linux/netfilter/xt_physdev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _XT_PHYSDEV_H
 #define _XT_PHYSDEV_H
 
diff --git a/include/linux/netfilter_arp/arp_tables.h b/include/linux/netfilter_arp/arp_tables.h
index 029b95e..e98028f 100644
--- a/include/linux/netfilter_arp/arp_tables.h
+++ b/include/linux/netfilter_arp/arp_tables.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * 	Format of an ARP firewall descriptor
  *
diff --git a/include/linux/netfilter_bridge.h b/include/linux/netfilter_bridge.h
index 2ed40c4..b671fdf 100644
--- a/include/linux/netfilter_bridge.h
+++ b/include/linux/netfilter_bridge.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_BRIDGE_NETFILTER_H
 #define __LINUX_BRIDGE_NETFILTER_H
 
diff --git a/include/linux/netfilter_bridge/ebt_802_3.h b/include/linux/netfilter_bridge/ebt_802_3.h
index e17e8bf..c6147f9 100644
--- a/include/linux/netfilter_bridge/ebt_802_3.h
+++ b/include/linux/netfilter_bridge/ebt_802_3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_BRIDGE_EBT_802_3_H
 #define __LINUX_BRIDGE_EBT_802_3_H
 
diff --git a/include/linux/netfilter_bridge/ebtables.h b/include/linux/netfilter_bridge/ebtables.h
index 528b24c..0773b5a 100644
--- a/include/linux/netfilter_bridge/ebtables.h
+++ b/include/linux/netfilter_bridge/ebtables.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  ebtables
  *
diff --git a/include/linux/netfilter_defs.h b/include/linux/netfilter_defs.h
index d3a7f85..dc6111a 100644
--- a/include/linux/netfilter_defs.h
+++ b/include/linux/netfilter_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_NETFILTER_CORE_H_
 #define __LINUX_NETFILTER_CORE_H_
 
diff --git a/include/linux/netfilter_ingress.h b/include/linux/netfilter_ingress.h
index 8d5dae1..554c920 100644
--- a/include/linux/netfilter_ingress.h
+++ b/include/linux/netfilter_ingress.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NETFILTER_INGRESS_H_
 #define _NETFILTER_INGRESS_H_
 
diff --git a/include/linux/netfilter_ipv4/ip_tables.h b/include/linux/netfilter_ipv4/ip_tables.h
index 7bfc589..d026e63 100644
--- a/include/linux/netfilter_ipv4/ip_tables.h
+++ b/include/linux/netfilter_ipv4/ip_tables.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * 25-Jul-1998 Major changes to allow for ip chain table
  *
diff --git a/include/linux/netfilter_ipv6/ip6_tables.h b/include/linux/netfilter_ipv6/ip6_tables.h
index b21c392..99cbfd3 100644
--- a/include/linux/netfilter_ipv6/ip6_tables.h
+++ b/include/linux/netfilter_ipv6/ip6_tables.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * 25-Jul-1998 Major changes to allow for ip chain table
  *
diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index 8664fd2..6ddb4a5 100644
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_NETLINK_H
 #define __LINUX_NETLINK_H
 
diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h
index 27c0aaa..67662d0 100644
--- a/include/linux/netpoll.h
+++ b/include/linux/netpoll.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Common code for low-level network console, dump, and debugger code
  *
diff --git a/include/linux/nfs.h b/include/linux/nfs.h
index 610af51..0dc7ad3 100644
--- a/include/linux/nfs.h
+++ b/include/linux/nfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * NFS protocol definitions
  *
diff --git a/include/linux/nfs3.h b/include/linux/nfs3.h
index a778ad8..404b8f7 100644
--- a/include/linux/nfs3.h
+++ b/include/linux/nfs3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * NFSv3 protocol definitions
  */
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index 47239c3..47adac6 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  include/linux/nfs4.h
  *
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index a0282ce..f0015f8 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/include/linux/nfs_fs.h
  *
diff --git a/include/linux/nfs_fs_i.h b/include/linux/nfs_fs_i.h
index a5c50d9..98f9268 100644
--- a/include/linux/nfs_fs_i.h
+++ b/include/linux/nfs_fs_i.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NFS_FS_I
 #define _NFS_FS_I
 
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index 74c4466..286b71c 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NFS_FS_SB
 #define _NFS_FS_SB
 
diff --git a/include/linux/nfs_iostat.h b/include/linux/nfs_iostat.h
index 9dcbbe9..027874c 100644
--- a/include/linux/nfs_iostat.h
+++ b/include/linux/nfs_iostat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  User-space visible declarations for NFS client per-mount
  *  point statistics
diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h
index d117120..e27572d 100644
--- a/include/linux/nfs_page.h
+++ b/include/linux/nfs_page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/nfs_page.h
  *
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 164d535..6959968 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_NFS_XDR_H
 #define _LINUX_NFS_XDR_H
 
diff --git a/include/linux/nfsacl.h b/include/linux/nfsacl.h
index 5e69e67..103d446 100644
--- a/include/linux/nfsacl.h
+++ b/include/linux/nfsacl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * File: linux/nfsacl.h
  *
diff --git a/include/linux/nls.h b/include/linux/nls.h
index 520681b..499e486 100644
--- a/include/linux/nls.h
+++ b/include/linux/nls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_NLS_H
 #define _LINUX_NLS_H
 
diff --git a/include/linux/nmi.h b/include/linux/nmi.h
index 27e249e..b8d868d 100644
--- a/include/linux/nmi.h
+++ b/include/linux/nmi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/include/linux/nmi.h
  */
diff --git a/include/linux/node.h b/include/linux/node.h
index d1751be..4ece0fe 100644
--- a/include/linux/node.h
+++ b/include/linux/node.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/linux/node.h - generic node definition
  *
diff --git a/include/linux/nodemask.h b/include/linux/nodemask.h
index cf0b91c..de1c50b 100644
--- a/include/linux/nodemask.h
+++ b/include/linux/nodemask.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_NODEMASK_H
 #define __LINUX_NODEMASK_H
 
diff --git a/include/linux/notifier.h b/include/linux/notifier.h
index 4149868..6d73111 100644
--- a/include/linux/notifier.h
+++ b/include/linux/notifier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Routines to manage notifier chains for passing status changes to any
  *	interested routines. We need this instead of hard coded call lists so
diff --git a/include/linux/ns_common.h b/include/linux/ns_common.h
index 85a5c8c..5fbc400 100644
--- a/include/linux/ns_common.h
+++ b/include/linux/ns_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_NS_COMMON_H
 #define _LINUX_NS_COMMON_H
 
diff --git a/include/linux/nsc_gpio.h b/include/linux/nsc_gpio.h
index 7da0cf3..d7a04a6 100644
--- a/include/linux/nsc_gpio.h
+++ b/include/linux/nsc_gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /**
    nsc_gpio.c
 
diff --git a/include/linux/nsproxy.h b/include/linux/nsproxy.h
index ac0d65b..2ae1b1a 100644
--- a/include/linux/nsproxy.h
+++ b/include/linux/nsproxy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_NSPROXY_H
 #define _LINUX_NSPROXY_H
 
diff --git a/include/linux/nubus.h b/include/linux/nubus.h
index 6165b2c..11ce6b1 100644
--- a/include/linux/nubus.h
+++ b/include/linux/nubus.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
   nubus.h: various definitions and prototypes for NuBus drivers to use.
 
diff --git a/include/linux/numa.h b/include/linux/numa.h
index 3aaa316..110b0e5 100644
--- a/include/linux/numa.h
+++ b/include/linux/numa.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_NUMA_H
 #define _LINUX_NUMA_H
 
diff --git a/include/linux/nvram.h b/include/linux/nvram.h
index cf0ff55..28bfb9a 100644
--- a/include/linux/nvram.h
+++ b/include/linux/nvram.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_NVRAM_H
 #define _LINUX_NVRAM_H
 
diff --git a/include/linux/of_address.h b/include/linux/of_address.h
index 3786473..b8ac44c 100644
--- a/include/linux/of_address.h
+++ b/include/linux/of_address.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __OF_ADDRESS_H
 #define __OF_ADDRESS_H
 #include <linux/ioport.h>
diff --git a/include/linux/of_device.h b/include/linux/of_device.h
index 6115025..8da5a1b 100644
--- a/include/linux/of_device.h
+++ b/include/linux/of_device.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_OF_DEVICE_H
 #define _LINUX_OF_DEVICE_H
 
diff --git a/include/linux/of_iommu.h b/include/linux/of_iommu.h
index 13394ac..cddfaff 100644
--- a/include/linux/of_iommu.h
+++ b/include/linux/of_iommu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __OF_IOMMU_H
 #define __OF_IOMMU_H
 
diff --git a/include/linux/of_irq.h b/include/linux/of_irq.h
index 1e0deb8..1214cab 100644
--- a/include/linux/of_irq.h
+++ b/include/linux/of_irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __OF_IRQ_H
 #define __OF_IRQ_H
 
diff --git a/include/linux/of_pci.h b/include/linux/of_pci.h
index 518c8d2..bf588a0 100644
--- a/include/linux/of_pci.h
+++ b/include/linux/of_pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __OF_PCI_H
 #define __OF_PCI_H
 
diff --git a/include/linux/of_reserved_mem.h b/include/linux/of_reserved_mem.h
index f8e1992..bb4fda7 100644
--- a/include/linux/of_reserved_mem.h
+++ b/include/linux/of_reserved_mem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __OF_RESERVED_MEM_H
 #define __OF_RESERVED_MEM_H
 
diff --git a/include/linux/olpc-ec.h b/include/linux/olpc-ec.h
index 2925df3..79bdc63 100644
--- a/include/linux/olpc-ec.h
+++ b/include/linux/olpc-ec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_OLPC_EC_H
 #define _LINUX_OLPC_EC_H
 
diff --git a/include/linux/omap-dma.h b/include/linux/omap-dma.h
index 2900816..840ce55 100644
--- a/include/linux/omap-dma.h
+++ b/include/linux/omap-dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_OMAP_DMA_H
 #define __LINUX_OMAP_DMA_H
 #include <linux/omap-dmaengine.h>
diff --git a/include/linux/once.h b/include/linux/once.h
index 9c98aaa..6790884 100644
--- a/include/linux/once.h
+++ b/include/linux/once.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_ONCE_H
 #define _LINUX_ONCE_H
 
diff --git a/include/linux/oom.h b/include/linux/oom.h
index 76aac4c..01c91d8 100644
--- a/include/linux/oom.h
+++ b/include/linux/oom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __INCLUDE_LINUX_OOM_H
 #define __INCLUDE_LINUX_OOM_H
 
diff --git a/include/linux/osq_lock.h b/include/linux/osq_lock.h
index 703ea5c..5581dbd 100644
--- a/include/linux/osq_lock.h
+++ b/include/linux/osq_lock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_OSQ_LOCK_H
 #define __LINUX_OSQ_LOCK_H
 
diff --git a/include/linux/oxu210hp.h b/include/linux/oxu210hp.h
index 0bf96ea..94cd251 100644
--- a/include/linux/oxu210hp.h
+++ b/include/linux/oxu210hp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* platform data for the OXU210HP HCD */
 
 struct oxu210hp_platform_data {
diff --git a/include/linux/page-flags-layout.h b/include/linux/page-flags-layout.h
index 77b078c..7ec86bf 100644
--- a/include/linux/page-flags-layout.h
+++ b/include/linux/page-flags-layout.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PAGE_FLAGS_LAYOUT_H
 #define PAGE_FLAGS_LAYOUT_H
 
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index ba2d470..584b14c 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Macros for manipulating and testing page->flags
  */
diff --git a/include/linux/page-isolation.h b/include/linux/page-isolation.h
index d4cd201..05a04e6 100644
--- a/include/linux/page-isolation.h
+++ b/include/linux/page-isolation.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_PAGEISOLATION_H
 #define __LINUX_PAGEISOLATION_H
 
diff --git a/include/linux/page_counter.h b/include/linux/page_counter.h
index 7e62920..c15ab80 100644
--- a/include/linux/page_counter.h
+++ b/include/linux/page_counter.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PAGE_COUNTER_H
 #define _LINUX_PAGE_COUNTER_H
 
diff --git a/include/linux/page_ext.h b/include/linux/page_ext.h
index 9298c39..ca5461e 100644
--- a/include/linux/page_ext.h
+++ b/include/linux/page_ext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_PAGE_EXT_H
 #define __LINUX_PAGE_EXT_H
 
diff --git a/include/linux/page_idle.h b/include/linux/page_idle.h
index fec4027..1e894d3 100644
--- a/include/linux/page_idle.h
+++ b/include/linux/page_idle.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MM_PAGE_IDLE_H
 #define _LINUX_MM_PAGE_IDLE_H
 
diff --git a/include/linux/page_owner.h b/include/linux/page_owner.h
index 2be728d..8679ccd 100644
--- a/include/linux/page_owner.h
+++ b/include/linux/page_owner.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_PAGE_OWNER_H
 #define __LINUX_PAGE_OWNER_H
 
diff --git a/include/linux/page_ref.h b/include/linux/page_ref.h
index 1fd7173..760d74a 100644
--- a/include/linux/page_ref.h
+++ b/include/linux/page_ref.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PAGE_REF_H
 #define _LINUX_PAGE_REF_H
 
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 5bbd678..e08b533 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PAGEMAP_H
 #define _LINUX_PAGEMAP_H
 
diff --git a/include/linux/pagevec.h b/include/linux/pagevec.h
index 4dcd550..2636c0c 100644
--- a/include/linux/pagevec.h
+++ b/include/linux/pagevec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/linux/pagevec.h
  *
diff --git a/include/linux/parport_pc.h b/include/linux/parport_pc.h
index cc1767f..3d6fc57 100644
--- a/include/linux/parport_pc.h
+++ b/include/linux/parport_pc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_PARPORT_PC_H
 #define __LINUX_PARPORT_PC_H
 
diff --git a/include/linux/parser.h b/include/linux/parser.h
index 884c1e6..12fc348 100644
--- a/include/linux/parser.h
+++ b/include/linux/parser.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/parser.h
  *
diff --git a/include/linux/patchkey.h b/include/linux/patchkey.h
index 97a919f..f581def 100644
--- a/include/linux/patchkey.h
+++ b/include/linux/patchkey.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * <linux/patchkey.h> -- definition of _PATCHKEY macro
  *
diff --git a/include/linux/path.h b/include/linux/path.h
index cde895c..81e65a5 100644
--- a/include/linux/path.h
+++ b/include/linux/path.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PATH_H
 #define _LINUX_PATH_H
 
diff --git a/include/linux/pci-acpi.h b/include/linux/pci-acpi.h
index dd86c97..8082b61 100644
--- a/include/linux/pci-acpi.h
+++ b/include/linux/pci-acpi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * File		pci-acpi.h
  *
diff --git a/include/linux/pci-aspm.h b/include/linux/pci-aspm.h
index 207c561..3cc06b0 100644
--- a/include/linux/pci-aspm.h
+++ b/include/linux/pci-aspm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	aspm.h
  *
diff --git a/include/linux/pci-ats.h b/include/linux/pci-ats.h
index 782fb8e..7c4b8e2 100644
--- a/include/linux/pci-ats.h
+++ b/include/linux/pci-ats.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_PCI_ATS_H
 #define LINUX_PCI_ATS_H
 
diff --git a/include/linux/pci-dma-compat.h b/include/linux/pci-dma-compat.h
index 39726ca..d1f9fda 100644
--- a/include/linux/pci-dma-compat.h
+++ b/include/linux/pci-dma-compat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* include this file if the platform implements the dma_ DMA Mapping API
  * and wants to provide the pci_ DMA Mapping API in terms of it */
 
diff --git a/include/linux/pci-dma.h b/include/linux/pci-dma.h
index 549a041..0f7aa73 100644
--- a/include/linux/pci-dma.h
+++ b/include/linux/pci-dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PCI_DMA_H
 #define _LINUX_PCI_DMA_H
 
diff --git a/include/linux/pci.h b/include/linux/pci.h
index f4f8ee5..d16a7c0 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	pci.h
  *
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 4adf616..ab20dc5 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	PCI Class, Vendor and Device IDs
  *
diff --git a/include/linux/pcieport_if.h b/include/linux/pcieport_if.h
index e8f3f74..b69769d 100644
--- a/include/linux/pcieport_if.h
+++ b/include/linux/pcieport_if.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * File:	pcieport_if.h
  * Purpose:	PCI Express Port Bus Driver's IF Data Structure
diff --git a/include/linux/percpu-refcount.h b/include/linux/percpu-refcount.h
index c13dceb..6658d9e 100644
--- a/include/linux/percpu-refcount.h
+++ b/include/linux/percpu-refcount.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Percpu refcounts:
  * (C) 2012 Google, Inc.
diff --git a/include/linux/percpu-rwsem.h b/include/linux/percpu-rwsem.h
index 93664f0..b1f37a8 100644
--- a/include/linux/percpu-rwsem.h
+++ b/include/linux/percpu-rwsem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PERCPU_RWSEM_H
 #define _LINUX_PERCPU_RWSEM_H
 
diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index 6a5fb93..296bbe4 100644
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_PERCPU_H
 #define __LINUX_PERCPU_H
 
diff --git a/include/linux/percpu_counter.h b/include/linux/percpu_counter.h
index ec06538..73a7bf3 100644
--- a/include/linux/percpu_counter.h
+++ b/include/linux/percpu_counter.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PERCPU_COUNTER_H
 #define _LINUX_PERCPU_COUNTER_H
 /*
diff --git a/include/linux/percpu_ida.h b/include/linux/percpu_ida.h
index f5cfdd6..07d78e4 100644
--- a/include/linux/percpu_ida.h
+++ b/include/linux/percpu_ida.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERCPU_IDA_H__
 #define __PERCPU_IDA_H__
 
diff --git a/include/linux/perf_regs.h b/include/linux/perf_regs.h
index 9b7dd59..4767474 100644
--- a/include/linux/perf_regs.h
+++ b/include/linux/perf_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PERF_REGS_H
 #define _LINUX_PERF_REGS_H
 
diff --git a/include/linux/personality.h b/include/linux/personality.h
index aeb7892..fc16fbc 100644
--- a/include/linux/personality.h
+++ b/include/linux/personality.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PERSONALITY_H
 #define _LINUX_PERSONALITY_H
 
diff --git a/include/linux/pfn.h b/include/linux/pfn.h
index 1132953..14bc053 100644
--- a/include/linux/pfn.h
+++ b/include/linux/pfn.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PFN_H_
 #define _LINUX_PFN_H_
 
diff --git a/include/linux/pfn_t.h b/include/linux/pfn_t.h
index a49b325..43b1d76 100644
--- a/include/linux/pfn_t.h
+++ b/include/linux/pfn_t.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PFN_T_H_
 #define _LINUX_PFN_T_H_
 #include <linux/mm.h>
diff --git a/include/linux/phy/ulpi_phy.h b/include/linux/phy/ulpi_phy.h
index f2ebe49..7054b44 100644
--- a/include/linux/phy/ulpi_phy.h
+++ b/include/linux/phy/ulpi_phy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/phy/phy.h>
 
 /**
diff --git a/include/linux/phy_fixed.h b/include/linux/phy_fixed.h
index 1d41ec4..cf6392d 100644
--- a/include/linux/phy_fixed.h
+++ b/include/linux/phy_fixed.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PHY_FIXED_H
 #define __PHY_FIXED_H
 
diff --git a/include/linux/pid.h b/include/linux/pid.h
index 7195827..dfd684c 100644
--- a/include/linux/pid.h
+++ b/include/linux/pid.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PID_H
 #define _LINUX_PID_H
 
diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h
index b09136f..c78af60 100644
--- a/include/linux/pid_namespace.h
+++ b/include/linux/pid_namespace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PID_NS_H
 #define _LINUX_PID_NS_H
 
diff --git a/include/linux/pim.h b/include/linux/pim.h
index 0e81b27..290d4d2e 100644
--- a/include/linux/pim.h
+++ b/include/linux/pim.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_PIM_H
 #define __LINUX_PIM_H
 
diff --git a/include/linux/pinctrl/pinctrl-state.h b/include/linux/pinctrl/pinctrl-state.h
index 2307351..a0e7858 100644
--- a/include/linux/pinctrl/pinctrl-state.h
+++ b/include/linux/pinctrl/pinctrl-state.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Standard pin control state definitions
  */
diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h
index e7497c9..6a80cfc 100644
--- a/include/linux/pipe_fs_i.h
+++ b/include/linux/pipe_fs_i.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PIPE_FS_I_H
 #define _LINUX_PIPE_FS_I_H
 
diff --git a/include/linux/pkeys.h b/include/linux/pkeys.h
index a1bacf1..0794ca7 100644
--- a/include/linux/pkeys.h
+++ b/include/linux/pkeys.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PKEYS_H
 #define _LINUX_PKEYS_H
 
diff --git a/include/linux/platform_data/ad7291.h b/include/linux/platform_data/ad7291.h
index bbd89fa..b1fd153 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 f9e4db1..cc75330 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 69e2e1fd..6655cc8 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 92c7fd7..902851a 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 d6a55bd..d442cef 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 409adcd..2107d0d 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 58afb30..22b69a3 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 26af543..d8f8738 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 b46e0d9..0471aaf 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 e82c642..f8f1f6b 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 2d08816..6eaa53c 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 92ffd32..6867a7e 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 736bb87..6ef58bb 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 31b19ca..a2c56fc 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 ed0e975..ccbb8f1 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 b4201c9..b7baf1e 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 9ffb12d..2303627 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 3cd41f7..bd35ddc 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 0e95527..2ccdce6 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 053587c..3271aa0 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 adccee2..0e36818 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 2462556..a376442 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 556778e..206ca4e 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 8e52c65..63f05eb 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 0303d19..5947a6f4 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 6011c42..65bfdb4 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 c04bac8..f231c63 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 2c94ab5..9d127aa 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 7611963..8380402 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 0d7620d..2a511a8 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 9cea4ee..87a8bed 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 b0fdaa9..ac67735 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 1706b35..752f97c 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 c42d317..b68d9f0 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 249f023..74a54ee 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 5e0789b..ba0ac7a 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 394d155..b42ad83 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 881a8e9..5e8b17d 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 3c98dd4..4eb53e0 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 0767a2a..11d4ed7 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 d428be4..a23b58a 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 72eacda..1cf36fd 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 646af6f..4ab3cd6 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 c6c5e98..ff9c35d 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 009e1d8..8b79ab0 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 533d980..818c5c6 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 171a271..eb16c67 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 08be445..6f012fe 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 c100456..13c83a2 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 cac3e7b..1dcd23b 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 2354c6f..2c089dd 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 c2d3aa1..a0ca52c 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 c90d7a0..9cf9309 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 157e71f..ad9794d 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 95b6e2a..69adea7 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 1d1b6ef..e049d51 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 09ccf18..305ebae 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 699ac41..a6f3ccd 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 cf9348b..0281265 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 4888399..dd7747b 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
 
diff --git a/include/linux/pm-trace.h b/include/linux/pm-trace.h
index 7b78793..b8604f8 100644
--- a/include/linux/pm-trace.h
+++ b/include/linux/pm-trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PM_TRACE_H
 #define PM_TRACE_H
 
diff --git a/include/linux/pm_qos.h b/include/linux/pm_qos.h
index 032b559..2a3acf4 100644
--- a/include/linux/pm_qos.h
+++ b/include/linux/pm_qos.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PM_QOS_H
 #define _LINUX_PM_QOS_H
 /* interface for the pm_qos_power infrastructure of the linux kernel.
diff --git a/include/linux/pmu.h b/include/linux/pmu.h
index 99b400b..9ac8fc6 100644
--- a/include/linux/pmu.h
+++ b/include/linux/pmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Definitions for talking to the PMU.  The PMU is a microcontroller
  * which controls battery charging and system power on PowerBook 3400
diff --git a/include/linux/pnp.h b/include/linux/pnp.h
index 2588ca6..3b12fd2 100644
--- a/include/linux/pnp.h
+++ b/include/linux/pnp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Linux Plug and Play Support
  * Copyright by Adam Belay <ambx1@neo.rr.com>
diff --git a/include/linux/poison.h b/include/linux/poison.h
index a395403..15927eb 100644
--- a/include/linux/poison.h
+++ b/include/linux/poison.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_POISON_H
 #define _LINUX_POISON_H
 
diff --git a/include/linux/poll.h b/include/linux/poll.h
index 2889f09..d384f12 100644
--- a/include/linux/poll.h
+++ b/include/linux/poll.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_POLL_H
 #define _LINUX_POLL_H
 
diff --git a/include/linux/posix-timers.h b/include/linux/posix-timers.h
index 62839fd..672c4f3 100644
--- a/include/linux/posix-timers.h
+++ b/include/linux/posix-timers.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _linux_POSIX_TIMERS_H
 #define _linux_POSIX_TIMERS_H
 
diff --git a/include/linux/posix_acl.h b/include/linux/posix_acl.h
index 5a9a739..b2b7255 100644
--- a/include/linux/posix_acl.h
+++ b/include/linux/posix_acl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
   File: linux/posix_acl.h
 
diff --git a/include/linux/posix_acl_xattr.h b/include/linux/posix_acl_xattr.h
index 8b867e3..2387709 100644
--- a/include/linux/posix_acl_xattr.h
+++ b/include/linux/posix_acl_xattr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
   File: linux/posix_acl_xattr.h
 
diff --git a/include/linux/power/bq27xxx_battery.h b/include/linux/power/bq27xxx_battery.h
index 43194e0..e6187f5 100644
--- a/include/linux/power/bq27xxx_battery.h
+++ b/include/linux/power/bq27xxx_battery.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_BQ27X00_BATTERY_H__
 #define __LINUX_BQ27X00_BATTERY_H__
 
diff --git a/include/linux/pr.h b/include/linux/pr.h
index 65c01c1..94ceec7 100644
--- a/include/linux/pr.h
+++ b/include/linux/pr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_PR_H
 #define LINUX_PR_H
 
diff --git a/include/linux/preempt.h b/include/linux/preempt.h
index cae4612..5bd3f15 100644
--- a/include/linux/preempt.h
+++ b/include/linux/preempt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_PREEMPT_H
 #define __LINUX_PREEMPT_H
 
diff --git a/include/linux/prefetch.h b/include/linux/prefetch.h
index a3bfbdf..13eafeb 100644
--- a/include/linux/prefetch.h
+++ b/include/linux/prefetch.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Generic cache management functions. Everything is arch-specific,  
  *  but this header exists to make sure the defines/functions can be
diff --git a/include/linux/prime_numbers.h b/include/linux/prime_numbers.h
index 14ec4f5..2b8e99c 100644
--- a/include/linux/prime_numbers.h
+++ b/include/linux/prime_numbers.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_PRIME_NUMBERS_H
 #define __LINUX_PRIME_NUMBERS_H
 
diff --git a/include/linux/printk.h b/include/linux/printk.h
index e10f274..3359260 100644
--- a/include/linux/printk.h
+++ b/include/linux/printk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __KERNEL_PRINTK__
 #define __KERNEL_PRINTK__
 
diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
index 76124dd..928ef9e 100644
--- a/include/linux/proc_fs.h
+++ b/include/linux/proc_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * The proc filesystem constants/structures
  */
diff --git a/include/linux/proc_ns.h b/include/linux/proc_ns.h
index 06844b5..2ff18c9 100644
--- a/include/linux/proc_ns.h
+++ b/include/linux/proc_ns.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * procfs namespace bits
  */
diff --git a/include/linux/processor.h b/include/linux/processor.h
index da0c5e5..dbc952e 100644
--- a/include/linux/processor.h
+++ b/include/linux/processor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Misc low level processor primitives */
 #ifndef _LINUX_PROCESSOR_H
 #define _LINUX_PROCESSOR_H
diff --git a/include/linux/profile.h b/include/linux/profile.h
index b537a25..bad18ca 100644
--- a/include/linux/profile.h
+++ b/include/linux/profile.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PROFILE_H
 #define _LINUX_PROFILE_H
 
diff --git a/include/linux/projid.h b/include/linux/projid.h
index 8c1f2c5..6137306 100644
--- a/include/linux/projid.h
+++ b/include/linux/projid.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PROJID_H
 #define _LINUX_PROJID_H
 
diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
index 0e5fcc1..919b2a0 100644
--- a/include/linux/ptrace.h
+++ b/include/linux/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PTRACE_H
 #define _LINUX_PTRACE_H
 
diff --git a/include/linux/purgatory.h b/include/linux/purgatory.h
index d60d4e278..b950e96 100644
--- a/include/linux/purgatory.h
+++ b/include/linux/purgatory.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PURGATORY_H
 #define _LINUX_PURGATORY_H
 
diff --git a/include/linux/pvclock_gtod.h b/include/linux/pvclock_gtod.h
index a71d2db..f635495 100644
--- a/include/linux/pvclock_gtod.h
+++ b/include/linux/pvclock_gtod.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PVCLOCK_GTOD_H
 #define _PVCLOCK_GTOD_H
 
diff --git a/include/linux/pwm.h b/include/linux/pwm.h
index 08fad7c..56518ad 100644
--- a/include/linux/pwm.h
+++ b/include/linux/pwm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_PWM_H
 #define __LINUX_PWM_H
 
diff --git a/include/linux/pwm_backlight.h b/include/linux/pwm_backlight.h
index efdd922..e8afbd7 100644
--- a/include/linux/pwm_backlight.h
+++ b/include/linux/pwm_backlight.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Generic PWM backlight driver data - see drivers/video/backlight/pwm_bl.c
  */
diff --git a/include/linux/pxa168_eth.h b/include/linux/pxa168_eth.h
index e1ab6e8..fb09c2c 100644
--- a/include/linux/pxa168_eth.h
+++ b/include/linux/pxa168_eth.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *pxa168 ethernet platform device data definition file.
  */
diff --git a/include/linux/qed/qed_fcoe_if.h b/include/linux/qed/qed_fcoe_if.h
index 1e015c5..4608248 100644
--- a/include/linux/qed/qed_fcoe_if.h
+++ b/include/linux/qed/qed_fcoe_if.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _QED_FCOE_IF_H
 #define _QED_FCOE_IF_H
 #include <linux/types.h>
diff --git a/include/linux/qnx6_fs.h b/include/linux/qnx6_fs.h
index 26049ea..13373d4 100644
--- a/include/linux/qnx6_fs.h
+++ b/include/linux/qnx6_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Name                 : qnx6_fs.h
  *  Author               : Kai Bankett
diff --git a/include/linux/quicklist.h b/include/linux/quicklist.h
index 3bdfa70..034982c 100644
--- a/include/linux/quicklist.h
+++ b/include/linux/quicklist.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_QUICKLIST_H
 #define LINUX_QUICKLIST_H
 /*
diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h
index 0ce6fc4..2fb6fb1 100644
--- a/include/linux/quotaops.h
+++ b/include/linux/quotaops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Definitions for diskquota-operations. When diskquota is configured these
  * macros expand to the right source-code.
diff --git a/include/linux/raid/xor.h b/include/linux/raid/xor.h
index 5a21095..2a9fee8 100644
--- a/include/linux/raid/xor.h
+++ b/include/linux/raid/xor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _XOR_H
 #define _XOR_H
 
diff --git a/include/linux/ramfs.h b/include/linux/ramfs.h
index ecc7309..5ef7d54 100644
--- a/include/linux/ramfs.h
+++ b/include/linux/ramfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_RAMFS_H
 #define _LINUX_RAMFS_H
 
diff --git a/include/linux/random.h b/include/linux/random.h
index eafea6a..4024f7d 100644
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/linux/random.h
  *
diff --git a/include/linux/range.h b/include/linux/range.h
index bd184a5..d1fbeb6 100644
--- a/include/linux/range.h
+++ b/include/linux/range.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_RANGE_H
 #define _LINUX_RANGE_H
 
diff --git a/include/linux/ras.h b/include/linux/ras.h
index be5338a..7c3debb 100644
--- a/include/linux/ras.h
+++ b/include/linux/ras.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __RAS_H__
 #define __RAS_H__
 
diff --git a/include/linux/ratelimit.h b/include/linux/ratelimit.h
index 56375ed..8ddf79e 100644
--- a/include/linux/ratelimit.h
+++ b/include/linux/ratelimit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_RATELIMIT_H
 #define _LINUX_RATELIMIT_H
 
diff --git a/include/linux/rational.h b/include/linux/rational.h
index bfa6a2b..33f5f5f 100644
--- a/include/linux/rational.h
+++ b/include/linux/rational.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * rational fractions
  *
diff --git a/include/linux/rbtree_latch.h b/include/linux/rbtree_latch.h
index 4f3432c..ece43e8 100644
--- a/include/linux/rbtree_latch.h
+++ b/include/linux/rbtree_latch.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Latched RB-trees
  *
diff --git a/include/linux/rculist.h b/include/linux/rculist.h
index 2bea1d5..c2cdd45 100644
--- a/include/linux/rculist.h
+++ b/include/linux/rculist.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_RCULIST_H
 #define _LINUX_RCULIST_H
 
diff --git a/include/linux/rculist_bl.h b/include/linux/rculist_bl.h
index 4f216c5..66e73ec 100644
--- a/include/linux/rculist_bl.h
+++ b/include/linux/rculist_bl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_RCULIST_BL_H
 #define _LINUX_RCULIST_BL_H
 
diff --git a/include/linux/rculist_nulls.h b/include/linux/rculist_nulls.h
index a23a331..a328e81 100644
--- a/include/linux/rculist_nulls.h
+++ b/include/linux/rculist_nulls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_RCULIST_NULLS_H
 #define _LINUX_RCULIST_NULLS_H
 
diff --git a/include/linux/rcupdate_wait.h b/include/linux/rcupdate_wait.h
index e774b4f..57f3713 100644
--- a/include/linux/rcupdate_wait.h
+++ b/include/linux/rcupdate_wait.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_RCUPDATE_WAIT_H
 #define _LINUX_SCHED_RCUPDATE_WAIT_H
 
diff --git a/include/linux/rcuwait.h b/include/linux/rcuwait.h
index a4ede51..90bfa32 100644
--- a/include/linux/rcuwait.h
+++ b/include/linux/rcuwait.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_RCUWAIT_H_
 #define _LINUX_RCUWAIT_H_
 
diff --git a/include/linux/reboot-mode.h b/include/linux/reboot-mode.h
index 75f7fe5..4a2abb3 100644
--- a/include/linux/reboot-mode.h
+++ b/include/linux/reboot-mode.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __REBOOT_MODE_H__
 #define __REBOOT_MODE_H__
 
diff --git a/include/linux/reboot.h b/include/linux/reboot.h
index a7ff409..d03da0e 100644
--- a/include/linux/reboot.h
+++ b/include/linux/reboot.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_REBOOT_H
 #define _LINUX_REBOOT_H
 
diff --git a/include/linux/reciprocal_div.h b/include/linux/reciprocal_div.h
index 8c5a3fb..e031e9f 100644
--- a/include/linux/reciprocal_div.h
+++ b/include/linux/reciprocal_div.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_RECIPROCAL_DIV_H
 #define _LINUX_RECIPROCAL_DIV_H
 
diff --git a/include/linux/refcount.h b/include/linux/refcount.h
index 48b7c9c..e828658 100644
--- a/include/linux/refcount.h
+++ b/include/linux/refcount.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_REFCOUNT_H
 #define _LINUX_REFCOUNT_H
 
diff --git a/include/linux/regulator/of_regulator.h b/include/linux/regulator/of_regulator.h
index 763953f..df7f154 100644
--- a/include/linux/regulator/of_regulator.h
+++ b/include/linux/regulator/of_regulator.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * OpenFirmware regulator support routines
  *
diff --git a/include/linux/regulator/userspace-consumer.h b/include/linux/regulator/userspace-consumer.h
index b4554ce..b5dba06 100644
--- a/include/linux/regulator/userspace-consumer.h
+++ b/include/linux/regulator/userspace-consumer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __REGULATOR_PLATFORM_CONSUMER_H_
 #define __REGULATOR_PLATFORM_CONSUMER_H_
 
diff --git a/include/linux/relay.h b/include/linux/relay.h
index 68c1448..e1bdf01 100644
--- a/include/linux/relay.h
+++ b/include/linux/relay.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/relay.h
  *
diff --git a/include/linux/reset-controller.h b/include/linux/reset-controller.h
index db1fe67..adb88f8 100644
--- a/include/linux/reset-controller.h
+++ b/include/linux/reset-controller.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_RESET_CONTROLLER_H_
 #define _LINUX_RESET_CONTROLLER_H_
 
diff --git a/include/linux/reset.h b/include/linux/reset.h
index 56463f3..4c7871d 100644
--- a/include/linux/reset.h
+++ b/include/linux/reset.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_RESET_H_
 #define _LINUX_RESET_H_
 
diff --git a/include/linux/resource.h b/include/linux/resource.h
index 277afda..bdf491c 100644
--- a/include/linux/resource.h
+++ b/include/linux/resource.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_RESOURCE_H
 #define _LINUX_RESOURCE_H
 
diff --git a/include/linux/restart_block.h b/include/linux/restart_block.h
index 19df8422..bcfdb91 100644
--- a/include/linux/restart_block.h
+++ b/include/linux/restart_block.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Common syscall restarting data
  */
diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h
index ee9b461..fa6ace66fea 100644
--- a/include/linux/ring_buffer.h
+++ b/include/linux/ring_buffer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_RING_BUFFER_H
 #define _LINUX_RING_BUFFER_H
 
diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index 733d3d8..988d176 100644
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_RMAP_H
 #define _LINUX_RMAP_H
 /*
diff --git a/include/linux/rndis.h b/include/linux/rndis.h
index 93c0a64..882587c 100644
--- a/include/linux/rndis.h
+++ b/include/linux/rndis.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Remote Network Driver Interface Specification (RNDIS)
  * definitions of the magic numbers used by this protocol
diff --git a/include/linux/root_dev.h b/include/linux/root_dev.h
index ed241aa..bab671b 100644
--- a/include/linux/root_dev.h
+++ b/include/linux/root_dev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ROOT_DEV_H_
 #define _ROOT_DEV_H_
 
diff --git a/include/linux/rpmsg/qcom_smd.h b/include/linux/rpmsg/qcom_smd.h
index f27917e..2e92d74 100644
--- a/include/linux/rpmsg/qcom_smd.h
+++ b/include/linux/rpmsg/qcom_smd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef _LINUX_RPMSG_QCOM_SMD_H
 #define _LINUX_RPMSG_QCOM_SMD_H
diff --git a/include/linux/rtc.h b/include/linux/rtc.h
index e6d0f9c..f6d7ee9 100644
--- a/include/linux/rtc.h
+++ b/include/linux/rtc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Generic RTC interface.
  * This version contains the part of the user interface to the Real Time Clock
diff --git a/include/linux/rtmutex.h b/include/linux/rtmutex.h
index 53fcbe9..1b92a28 100644
--- a/include/linux/rtmutex.h
+++ b/include/linux/rtmutex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * RT Mutexes: blocking mutual exclusion locks with PI support
  *
diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h
index dea59c8..ff3dd2e 100644
--- a/include/linux/rtnetlink.h
+++ b/include/linux/rtnetlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_RTNETLINK_H
 #define __LINUX_RTNETLINK_H
 
diff --git a/include/linux/rwsem-spinlock.h b/include/linux/rwsem-spinlock.h
index e784761..e475683 100644
--- a/include/linux/rwsem-spinlock.h
+++ b/include/linux/rwsem-spinlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* rwsem-spinlock.h: fallback C implementation
  *
  * Copyright (c) 2001   David Howells (dhowells@redhat.com).
diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h
index 0ad7318..dfa34d8 100644
--- a/include/linux/rwsem.h
+++ b/include/linux/rwsem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* rwsem.h: R/W semaphores, public interface
  *
  * Written by David Howells (dhowells@redhat.com).
diff --git a/include/linux/s3c_adc_battery.h b/include/linux/s3c_adc_battery.h
index 99dadbf..833871d 100644
--- a/include/linux/s3c_adc_battery.h
+++ b/include/linux/s3c_adc_battery.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _S3C_ADC_BATTERY_H
 #define _S3C_ADC_BATTERY_H
 
diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h
index 4b3286a..d87dfa4 100644
--- a/include/linux/scatterlist.h
+++ b/include/linux/scatterlist.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCATTERLIST_H
 #define _LINUX_SCATTERLIST_H
 
diff --git a/include/linux/scc.h b/include/linux/scc.h
index c5a0049..745eabd 100644
--- a/include/linux/scc.h
+++ b/include/linux/scc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: scc.h,v 1.29 1997/04/02 14:56:45 jreuter Exp jreuter $ */
 #ifndef	_SCC_H
 #define	_SCC_H
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 26a7df4..fdf74f2 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_H
 #define _LINUX_SCHED_H
 
diff --git a/include/linux/sched/autogroup.h b/include/linux/sched/autogroup.h
index 55cd496..704391c 100644
--- a/include/linux/sched/autogroup.h
+++ b/include/linux/sched/autogroup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_AUTOGROUP_H
 #define _LINUX_SCHED_AUTOGROUP_H
 
diff --git a/include/linux/sched/clock.h b/include/linux/sched/clock.h
index a55600f..867d588 100644
--- a/include/linux/sched/clock.h
+++ b/include/linux/sched/clock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_CLOCK_H
 #define _LINUX_SCHED_CLOCK_H
 
diff --git a/include/linux/sched/coredump.h b/include/linux/sched/coredump.h
index 98ae0d0..9c88473 100644
--- a/include/linux/sched/coredump.h
+++ b/include/linux/sched/coredump.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_COREDUMP_H
 #define _LINUX_SCHED_COREDUMP_H
 
diff --git a/include/linux/sched/cpufreq.h b/include/linux/sched/cpufreq.h
index d2be2cc..d1ad3d8 100644
--- a/include/linux/sched/cpufreq.h
+++ b/include/linux/sched/cpufreq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_CPUFREQ_H
 #define _LINUX_SCHED_CPUFREQ_H
 
diff --git a/include/linux/sched/cputime.h b/include/linux/sched/cputime.h
index 4c5b973..d0677f6 100644
--- a/include/linux/sched/cputime.h
+++ b/include/linux/sched/cputime.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_CPUTIME_H
 #define _LINUX_SCHED_CPUTIME_H
 
diff --git a/include/linux/sched/deadline.h b/include/linux/sched/deadline.h
index 975be86..a5bc872 100644
--- a/include/linux/sched/deadline.h
+++ b/include/linux/sched/deadline.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_DEADLINE_H
 #define _LINUX_SCHED_DEADLINE_H
 
diff --git a/include/linux/sched/debug.h b/include/linux/sched/debug.h
index 5d58d49..95fb9e0 100644
--- a/include/linux/sched/debug.h
+++ b/include/linux/sched/debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_DEBUG_H
 #define _LINUX_SCHED_DEBUG_H
 
diff --git a/include/linux/sched/hotplug.h b/include/linux/sched/hotplug.h
index 752ac7e..9a62ffd 100644
--- a/include/linux/sched/hotplug.h
+++ b/include/linux/sched/hotplug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_HOTPLUG_H
 #define _LINUX_SCHED_HOTPLUG_H
 
diff --git a/include/linux/sched/idle.h b/include/linux/sched/idle.h
index 5ca63eb..22873d2 100644
--- a/include/linux/sched/idle.h
+++ b/include/linux/sched/idle.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_IDLE_H
 #define _LINUX_SCHED_IDLE_H
 
diff --git a/include/linux/sched/init.h b/include/linux/sched/init.h
index 1272150..0354257 100644
--- a/include/linux/sched/init.h
+++ b/include/linux/sched/init.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_INIT_H
 #define _LINUX_SCHED_INIT_H
 
diff --git a/include/linux/sched/jobctl.h b/include/linux/sched/jobctl.h
index 016afa0..98228bd 100644
--- a/include/linux/sched/jobctl.h
+++ b/include/linux/sched/jobctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_JOBCTL_H
 #define _LINUX_SCHED_JOBCTL_H
 
diff --git a/include/linux/sched/loadavg.h b/include/linux/sched/loadavg.h
index 4264bc6..80bc84b 100644
--- a/include/linux/sched/loadavg.h
+++ b/include/linux/sched/loadavg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_LOADAVG_H
 #define _LINUX_SCHED_LOADAVG_H
 
diff --git a/include/linux/sched/mm.h b/include/linux/sched/mm.h
index ab9bf7b..3d49b91 100644
--- a/include/linux/sched/mm.h
+++ b/include/linux/sched/mm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_MM_H
 #define _LINUX_SCHED_MM_H
 
diff --git a/include/linux/sched/nohz.h b/include/linux/sched/nohz.h
index 028d17b..3d3a97d 100644
--- a/include/linux/sched/nohz.h
+++ b/include/linux/sched/nohz.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_NOHZ_H
 #define _LINUX_SCHED_NOHZ_H
 
diff --git a/include/linux/sched/numa_balancing.h b/include/linux/sched/numa_balancing.h
index 35d5fc7..e7dd04a 100644
--- a/include/linux/sched/numa_balancing.h
+++ b/include/linux/sched/numa_balancing.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_NUMA_BALANCING_H
 #define _LINUX_SCHED_NUMA_BALANCING_H
 
diff --git a/include/linux/sched/prio.h b/include/linux/sched/prio.h
index 2cc450f..7d64fea 100644
--- a/include/linux/sched/prio.h
+++ b/include/linux/sched/prio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_PRIO_H
 #define _LINUX_SCHED_PRIO_H
 
diff --git a/include/linux/sched/rt.h b/include/linux/sched/rt.h
index f93329a..db865ed 100644
--- a/include/linux/sched/rt.h
+++ b/include/linux/sched/rt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_RT_H
 #define _LINUX_SCHED_RT_H
 
diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h
index 2a0dd40..0aa4548 100644
--- a/include/linux/sched/signal.h
+++ b/include/linux/sched/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_SIGNAL_H
 #define _LINUX_SCHED_SIGNAL_H
 
diff --git a/include/linux/sched/stat.h b/include/linux/sched/stat.h
index 141b74c..04f1321 100644
--- a/include/linux/sched/stat.h
+++ b/include/linux/sched/stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_STAT_H
 #define _LINUX_SCHED_STAT_H
 
diff --git a/include/linux/sched/sysctl.h b/include/linux/sched/sysctl.h
index 0f5ecd4..d6a18a3 100644
--- a/include/linux/sched/sysctl.h
+++ b/include/linux/sched/sysctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_SYSCTL_H
 #define _LINUX_SCHED_SYSCTL_H
 
diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h
index 79a2a74..05b8650 100644
--- a/include/linux/sched/task.h
+++ b/include/linux/sched/task.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_TASK_H
 #define _LINUX_SCHED_TASK_H
 
diff --git a/include/linux/sched/task_stack.h b/include/linux/sched/task_stack.h
index df6ea66..cb4828a 100644
--- a/include/linux/sched/task_stack.h
+++ b/include/linux/sched/task_stack.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_TASK_STACK_H
 #define _LINUX_SCHED_TASK_STACK_H
 
diff --git a/include/linux/sched/topology.h b/include/linux/sched/topology.h
index 7d065ab..cf257c2 100644
--- a/include/linux/sched/topology.h
+++ b/include/linux/sched/topology.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_TOPOLOGY_H
 #define _LINUX_SCHED_TOPOLOGY_H
 
diff --git a/include/linux/sched/user.h b/include/linux/sched/user.h
index 3c07e41..0dcf4e4 100644
--- a/include/linux/sched/user.h
+++ b/include/linux/sched/user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_USER_H
 #define _LINUX_SCHED_USER_H
 
diff --git a/include/linux/sched/wake_q.h b/include/linux/sched/wake_q.h
index d03d8a9..10b19a1 100644
--- a/include/linux/sched/wake_q.h
+++ b/include/linux/sched/wake_q.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_WAKE_Q_H
 #define _LINUX_SCHED_WAKE_Q_H
 
diff --git a/include/linux/sched/xacct.h b/include/linux/sched/xacct.h
index a28156a..c078f0a 100644
--- a/include/linux/sched/xacct.h
+++ b/include/linux/sched/xacct.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_XACCT_H
 #define _LINUX_SCHED_XACCT_H
 
diff --git a/include/linux/screen_info.h b/include/linux/screen_info.h
index f0f8bad..eab7081 100644
--- a/include/linux/screen_info.h
+++ b/include/linux/screen_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SCREEN_INFO_H
 #define _SCREEN_INFO_H
 
diff --git a/include/linux/scx200.h b/include/linux/scx200.h
index de466e1..652ec1a 100644
--- a/include/linux/scx200.h
+++ b/include/linux/scx200.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* linux/include/linux/scx200.h
 
    Copyright (c) 2001,2002 Christer Weinigel <wingel@nano-system.com>
diff --git a/include/linux/scx200_gpio.h b/include/linux/scx200_gpio.h
index ece4e55..6386ddb 100644
--- a/include/linux/scx200_gpio.h
+++ b/include/linux/scx200_gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 u32 scx200_gpio_configure(unsigned index, u32 set, u32 clear);
 
 extern unsigned scx200_gpio_base;
diff --git a/include/linux/sdb.h b/include/linux/sdb.h
index fbb76a4..a2404a2 100644
--- a/include/linux/sdb.h
+++ b/include/linux/sdb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This is the official version 1.1 of sdb.h
  */
diff --git a/include/linux/seccomp.h b/include/linux/seccomp.h
index c8bef43..10f25f7 100644
--- a/include/linux/seccomp.h
+++ b/include/linux/seccomp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SECCOMP_H
 #define _LINUX_SECCOMP_H
 
diff --git a/include/linux/securebits.h b/include/linux/securebits.h
index da1b33b..6565286 100644
--- a/include/linux/securebits.h
+++ b/include/linux/securebits.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SECUREBITS_H
 #define _LINUX_SECUREBITS_H 1
 
diff --git a/include/linux/seg6.h b/include/linux/seg6.h
index 7a66d2b..369066a 100644
--- a/include/linux/seg6.h
+++ b/include/linux/seg6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SEG6_H
 #define _LINUX_SEG6_H
 
diff --git a/include/linux/seg6_genl.h b/include/linux/seg6_genl.h
index d6c3fb4f..2f25a3c 100644
--- a/include/linux/seg6_genl.h
+++ b/include/linux/seg6_genl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SEG6_GENL_H
 #define _LINUX_SEG6_GENL_H
 
diff --git a/include/linux/seg6_hmac.h b/include/linux/seg6_hmac.h
index da437eb..16e5959 100644
--- a/include/linux/seg6_hmac.h
+++ b/include/linux/seg6_hmac.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SEG6_HMAC_H
 #define _LINUX_SEG6_HMAC_H
 
diff --git a/include/linux/seg6_iptunnel.h b/include/linux/seg6_iptunnel.h
index 5377cf6..d07df7f 100644
--- a/include/linux/seg6_iptunnel.h
+++ b/include/linux/seg6_iptunnel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SEG6_IPTUNNEL_H
 #define _LINUX_SEG6_IPTUNNEL_H
 
diff --git a/include/linux/selection.h b/include/linux/selection.h
index 8e4624e..5b278ce 100644
--- a/include/linux/selection.h
+++ b/include/linux/selection.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * selection.h
  *
diff --git a/include/linux/sem.h b/include/linux/sem.h
index 0083128..9badd32 100644
--- a/include/linux/sem.h
+++ b/include/linux/sem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SEM_H
 #define _LINUX_SEM_H
 
diff --git a/include/linux/seq_buf.h b/include/linux/seq_buf.h
index fb7eb9c..aa5deb0 100644
--- a/include/linux/seq_buf.h
+++ b/include/linux/seq_buf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SEQ_BUF_H
 #define _LINUX_SEQ_BUF_H
 
diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
index e305b66..09c6e28 100644
--- a/include/linux/seq_file.h
+++ b/include/linux/seq_file.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SEQ_FILE_H
 #define _LINUX_SEQ_FILE_H
 
diff --git a/include/linux/seq_file_net.h b/include/linux/seq_file_net.h
index 32c89bb..43ccd84 100644
--- a/include/linux/seq_file_net.h
+++ b/include/linux/seq_file_net.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SEQ_FILE_NET_H__
 #define __SEQ_FILE_NET_H__
 
diff --git a/include/linux/seqlock.h b/include/linux/seqlock.h
index ead9765..f189a8a 100644
--- a/include/linux/seqlock.h
+++ b/include/linux/seqlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SEQLOCK_H
 #define __LINUX_SEQLOCK_H
 /*
diff --git a/include/linux/serial_bcm63xx.h b/include/linux/serial_bcm63xx.h
index 570e964..b5e48ef 100644
--- a/include/linux/serial_bcm63xx.h
+++ b/include/linux/serial_bcm63xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SERIAL_BCM63XX_H
 #define _LINUX_SERIAL_BCM63XX_H
 
diff --git a/include/linux/serial_sci.h b/include/linux/serial_sci.h
index e598eae..c0e795d 100644
--- a/include/linux/serial_sci.h
+++ b/include/linux/serial_sci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SERIAL_SCI_H
 #define __LINUX_SERIAL_SCI_H
 
diff --git a/include/linux/sh_clk.h b/include/linux/sh_clk.h
index 645896b..7bed5be 100644
--- a/include/linux/sh_clk.h
+++ b/include/linux/sh_clk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SH_CLOCK_H
 #define __SH_CLOCK_H
 
diff --git a/include/linux/sh_eth.h b/include/linux/sh_eth.h
index f2e27e0..ff3642d 100644
--- a/include/linux/sh_eth.h
+++ b/include/linux/sh_eth.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_ETH_H__
 #define __ASM_SH_ETH_H__
 
diff --git a/include/linux/sh_intc.h b/include/linux/sh_intc.h
index 3238328..c255273 100644
--- a/include/linux/sh_intc.h
+++ b/include/linux/sh_intc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SH_INTC_H
 #define __SH_INTC_H
 
diff --git a/include/linux/sh_timer.h b/include/linux/sh_timer.h
index 64638b0..74fd514 100644
--- a/include/linux/sh_timer.h
+++ b/include/linux/sh_timer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SH_TIMER_H__
 #define __SH_TIMER_H__
 
diff --git a/include/linux/shm.h b/include/linux/shm.h
index 74a4b3b..2bbafac 100644
--- a/include/linux/shm.h
+++ b/include/linux/shm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SHM_H_
 #define _LINUX_SHM_H_
 
diff --git a/include/linux/shmem_fs.h b/include/linux/shmem_fs.h
index b6c3540..ed91ce5 100644
--- a/include/linux/shmem_fs.h
+++ b/include/linux/shmem_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SHMEM_FS_H
 #define __SHMEM_FS_H
 
diff --git a/include/linux/shrinker.h b/include/linux/shrinker.h
index 51d1896..388ff29 100644
--- a/include/linux/shrinker.h
+++ b/include/linux/shrinker.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SHRINKER_H
 #define _LINUX_SHRINKER_H
 
diff --git a/include/linux/signal.h b/include/linux/signal.h
index 38564e3..042968d 100644
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SIGNAL_H
 #define _LINUX_SIGNAL_H
 
diff --git a/include/linux/signal_types.h b/include/linux/signal_types.h
index 16d862a..222ae69 100644
--- a/include/linux/signal_types.h
+++ b/include/linux/signal_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SIGNAL_TYPES_H
 #define _LINUX_SIGNAL_TYPES_H
 
diff --git a/include/linux/signalfd.h b/include/linux/signalfd.h
index 49850486..9a47c38 100644
--- a/include/linux/signalfd.h
+++ b/include/linux/signalfd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  include/linux/signalfd.h
  *
diff --git a/include/linux/sirfsoc_dma.h b/include/linux/sirfsoc_dma.h
index 29d9593..50161b6 100644
--- a/include/linux/sirfsoc_dma.h
+++ b/include/linux/sirfsoc_dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SIRFSOC_DMA_H_
 #define _SIRFSOC_DMA_H_
 
diff --git a/include/linux/slab.h b/include/linux/slab.h
index 41473df..af5aa65 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Written by Mark Hemment, 1996 (markhe@nextd.demon.co.uk).
  *
diff --git a/include/linux/slab_def.h b/include/linux/slab_def.h
index 4ad2c5a..8f7d2b1 100644
--- a/include/linux/slab_def.h
+++ b/include/linux/slab_def.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SLAB_DEF_H
 #define	_LINUX_SLAB_DEF_H
 
diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index 0783b62..39fa09b 100644
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SLUB_DEF_H
 #define _LINUX_SLUB_DEF_H
 
diff --git a/include/linux/smc911x.h b/include/linux/smc911x.h
index 521f371..8cace81 100644
--- a/include/linux/smc911x.h
+++ b/include/linux/smc911x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SMC911X_H__
 #define __SMC911X_H__
 
diff --git a/include/linux/smc91x.h b/include/linux/smc91x.h
index 129bc67..f3b195f 100644
--- a/include/linux/smc91x.h
+++ b/include/linux/smc91x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SMC91X_H__
 #define __SMC91X_H__
 
diff --git a/include/linux/smp.h b/include/linux/smp.h
index 98b1fe0..9fb239e 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SMP_H
 #define __LINUX_SMP_H
 
diff --git a/include/linux/smpboot.h b/include/linux/smpboot.h
index c149aa7..c174844 100644
--- a/include/linux/smpboot.h
+++ b/include/linux/smpboot.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SMPBOOT_H
 #define _LINUX_SMPBOOT_H
 
diff --git a/include/linux/smscphy.h b/include/linux/smscphy.h
index f4bf16e..1a13627 100644
--- a/include/linux/smscphy.h
+++ b/include/linux/smscphy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SMSCPHY_H__
 #define __LINUX_SMSCPHY_H__
 
diff --git a/include/linux/soc/brcmstb/brcmstb.h b/include/linux/soc/brcmstb/brcmstb.h
index 337ce41..003f3dd 100644
--- a/include/linux/soc/brcmstb/brcmstb.h
+++ b/include/linux/soc/brcmstb/brcmstb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __BRCMSTB_SOC_H
 #define __BRCMSTB_SOC_H
 
diff --git a/include/linux/soc/dove/pmu.h b/include/linux/soc/dove/pmu.h
index 76538697..1955c01 100644
--- a/include/linux/soc/dove/pmu.h
+++ b/include/linux/soc/dove/pmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_SOC_DOVE_PMU_H
 #define LINUX_SOC_DOVE_PMU_H
 
diff --git a/include/linux/soc/mediatek/infracfg.h b/include/linux/soc/mediatek/infracfg.h
index a0182ec..e8d9f0d 100644
--- a/include/linux/soc/mediatek/infracfg.h
+++ b/include/linux/soc/mediatek/infracfg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SOC_MEDIATEK_INFRACFG_H
 #define __SOC_MEDIATEK_INFRACFG_H
 
diff --git a/include/linux/soc/qcom/mdt_loader.h b/include/linux/soc/qcom/mdt_loader.h
index f423001..bd8e086 100644
--- a/include/linux/soc/qcom/mdt_loader.h
+++ b/include/linux/soc/qcom/mdt_loader.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __QCOM_MDT_LOADER_H__
 #define __QCOM_MDT_LOADER_H__
 
diff --git a/include/linux/soc/qcom/smd-rpm.h b/include/linux/soc/qcom/smd-rpm.h
index 2a53dca..4eff6e6 100644
--- a/include/linux/soc/qcom/smd-rpm.h
+++ b/include/linux/soc/qcom/smd-rpm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __QCOM_SMD_RPM_H__
 #define __QCOM_SMD_RPM_H__
 
diff --git a/include/linux/soc/qcom/smem.h b/include/linux/soc/qcom/smem.h
index 785e196..c1657ed 100644
--- a/include/linux/soc/qcom/smem.h
+++ b/include/linux/soc/qcom/smem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __QCOM_SMEM_H__
 #define __QCOM_SMEM_H__
 
diff --git a/include/linux/soc/qcom/smem_state.h b/include/linux/soc/qcom/smem_state.h
index b8478ee..63ad8cd 100644
--- a/include/linux/soc/qcom/smem_state.h
+++ b/include/linux/soc/qcom/smem_state.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __QCOM_SMEM_STATE__
 #define __QCOM_SMEM_STATE__
 
diff --git a/include/linux/soc/qcom/wcnss_ctrl.h b/include/linux/soc/qcom/wcnss_ctrl.h
index a4dd4d7c..bbeb6b9 100644
--- a/include/linux/soc/qcom/wcnss_ctrl.h
+++ b/include/linux/soc/qcom/wcnss_ctrl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __WCNSS_CTRL_H__
 #define __WCNSS_CTRL_H__
 
diff --git a/include/linux/soc/renesas/rcar-rst.h b/include/linux/soc/renesas/rcar-rst.h
index 2c231f2..7899a5b 100644
--- a/include/linux/soc/renesas/rcar-rst.h
+++ b/include/linux/soc/renesas/rcar-rst.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SOC_RENESAS_RCAR_RST_H__
 #define __LINUX_SOC_RENESAS_RCAR_RST_H__
 
diff --git a/include/linux/soc/renesas/rcar-sysc.h b/include/linux/soc/renesas/rcar-sysc.h
index 7b8b280..8a6086d 100644
--- a/include/linux/soc/renesas/rcar-sysc.h
+++ b/include/linux/soc/renesas/rcar-sysc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SOC_RENESAS_RCAR_SYSC_H__
 #define __LINUX_SOC_RENESAS_RCAR_SYSC_H__
 
diff --git a/include/linux/sock_diag.h b/include/linux/sock_diag.h
index a2f8109..15fe980 100644
--- a/include/linux/sock_diag.h
+++ b/include/linux/sock_diag.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SOCK_DIAG_H__
 #define __SOCK_DIAG_H__
 
diff --git a/include/linux/socket.h b/include/linux/socket.h
index 8ad963c..9286a5a 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SOCKET_H
 #define _LINUX_SOCKET_H
 
diff --git a/include/linux/sonet.h b/include/linux/sonet.h
index 680f9a3..2b802b6 100644
--- a/include/linux/sonet.h
+++ b/include/linux/sonet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* sonet.h - SONET/SHD physical layer control */
 #ifndef LINUX_SONET_H
 #define LINUX_SONET_H
diff --git a/include/linux/sony-laptop.h b/include/linux/sony-laptop.h
index e2e036d..1a4b773 100644
--- a/include/linux/sony-laptop.h
+++ b/include/linux/sony-laptop.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SONYLAPTOP_H_
 #define _SONYLAPTOP_H_
 
diff --git a/include/linux/sort.h b/include/linux/sort.h
index d534da2..2b99a5d 100644
--- a/include/linux/sort.h
+++ b/include/linux/sort.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SORT_H
 #define _LINUX_SORT_H
 
diff --git a/include/linux/sound.h b/include/linux/sound.h
index 73ded04..3c6d393 100644
--- a/include/linux/sound.h
+++ b/include/linux/sound.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SOUND_H
 #define _LINUX_SOUND_H
 
diff --git a/include/linux/spi/ad7877.h b/include/linux/spi/ad7877.h
index cdbed81..b7be843 100644
--- a/include/linux/spi/ad7877.h
+++ b/include/linux/spi/ad7877.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* linux/spi/ad7877.h */
 
 /* Touchscreen characteristics vary between boards and models.  The
diff --git a/include/linux/spi/ads7846.h b/include/linux/spi/ads7846.h
index 2f694f3..1a5eaef 100644
--- a/include/linux/spi/ads7846.h
+++ b/include/linux/spi/ads7846.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* linux/spi/ads7846.h */
 
 /* Touchscreen characteristics vary between boards and models.  The
diff --git a/include/linux/spi/at73c213.h b/include/linux/spi/at73c213.h
index 0f20a70e..cbca665 100644
--- a/include/linux/spi/at73c213.h
+++ b/include/linux/spi/at73c213.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Board-specific data used to set up AT73c213 audio DAC driver.
  */
diff --git a/include/linux/spi/corgi_lcd.h b/include/linux/spi/corgi_lcd.h
index 6692b34..edf4bec 100644
--- a/include/linux/spi/corgi_lcd.h
+++ b/include/linux/spi/corgi_lcd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SPI_CORGI_LCD_H
 #define __LINUX_SPI_CORGI_LCD_H
 
diff --git a/include/linux/spi/ds1305.h b/include/linux/spi/ds1305.h
index 287ec83..82db6cd 100644
--- a/include/linux/spi/ds1305.h
+++ b/include/linux/spi/ds1305.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SPI_DS1305_H
 #define __LINUX_SPI_DS1305_H
 
diff --git a/include/linux/spi/eeprom.h b/include/linux/spi/eeprom.h
index e34e169..aceccf9 100644
--- a/include/linux/spi/eeprom.h
+++ b/include/linux/spi/eeprom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SPI_EEPROM_H
 #define __LINUX_SPI_EEPROM_H
 
diff --git a/include/linux/spi/flash.h b/include/linux/spi/flash.h
index f4199e7..2401a08 100644
--- a/include/linux/spi/flash.h
+++ b/include/linux/spi/flash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_SPI_FLASH_H
 #define LINUX_SPI_FLASH_H
 
diff --git a/include/linux/spi/ifx_modem.h b/include/linux/spi/ifx_modem.h
index 394fec9..694268c 100644
--- a/include/linux/spi/ifx_modem.h
+++ b/include/linux/spi/ifx_modem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_IFX_MODEM_H
 #define LINUX_IFX_MODEM_H
 
diff --git a/include/linux/spi/max7301.h b/include/linux/spi/max7301.h
index bcaa2f7..433c20e 100644
--- a/include/linux/spi/max7301.h
+++ b/include/linux/spi/max7301.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_SPI_MAX7301_H
 #define LINUX_SPI_MAX7301_H
 
diff --git a/include/linux/spi/mc33880.h b/include/linux/spi/mc33880.h
index 82ffccd..205a49c 100644
--- a/include/linux/spi/mc33880.h
+++ b/include/linux/spi/mc33880.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_SPI_MC33880_H
 #define LINUX_SPI_MC33880_H
 
diff --git a/include/linux/spi/mcp23s08.h b/include/linux/spi/mcp23s08.h
index 82d96a3..738a45b 100644
--- a/include/linux/spi/mcp23s08.h
+++ b/include/linux/spi/mcp23s08.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 struct mcp23s08_platform_data {
 	/* For mcp23s08, up to 4 slaves (numbered 0..3) can share one SPI
 	 * chipselect, each providing 1 gpio_chip instance with 8 gpios.
diff --git a/include/linux/spi/mmc_spi.h b/include/linux/spi/mmc_spi.h
index 274bc0f..bfde741 100644
--- a/include/linux/spi/mmc_spi.h
+++ b/include/linux/spi/mmc_spi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SPI_MMC_SPI_H
 #define __LINUX_SPI_MMC_SPI_H
 
diff --git a/include/linux/spi/sh_msiof.h b/include/linux/spi/sh_msiof.h
index f74b581..dc2a0cb 100644
--- a/include/linux/spi/sh_msiof.h
+++ b/include/linux/spi/sh_msiof.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SPI_SH_MSIOF_H__
 #define __SPI_SH_MSIOF_H__
 
diff --git a/include/linux/spi/spi_bitbang.h b/include/linux/spi/spi_bitbang.h
index 154788e..51d8c06 100644
--- a/include/linux/spi/spi_bitbang.h
+++ b/include/linux/spi/spi_bitbang.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef	__SPI_BITBANG_H
 #define	__SPI_BITBANG_H
 
diff --git a/include/linux/spi/spi_gpio.h b/include/linux/spi/spi_gpio.h
index 1634ce3..e7bd89a 100644
--- a/include/linux/spi/spi_gpio.h
+++ b/include/linux/spi/spi_gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SPI_GPIO_H
 #define __LINUX_SPI_GPIO_H
 
diff --git a/include/linux/spi/spi_oc_tiny.h b/include/linux/spi/spi_oc_tiny.h
index 1ac529c..a3ecf2f 100644
--- a/include/linux/spi/spi_oc_tiny.h
+++ b/include/linux/spi/spi_oc_tiny.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SPI_SPI_OC_TINY_H
 #define _LINUX_SPI_SPI_OC_TINY_H
 
diff --git a/include/linux/spi/tdo24m.h b/include/linux/spi/tdo24m.h
index 7572d4e..48dd58a 100644
--- a/include/linux/spi/tdo24m.h
+++ b/include/linux/spi/tdo24m.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __TDO24M_H__
 #define __TDO24M_H__
 
diff --git a/include/linux/spi/xilinx_spi.h b/include/linux/spi/xilinx_spi.h
index 333ecdf..c15d69d 100644
--- a/include/linux/spi/xilinx_spi.h
+++ b/include/linux/spi/xilinx_spi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SPI_XILINX_SPI_H
 #define __LINUX_SPI_XILINX_SPI_H
 
diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h
index 69e079c..341e1a1 100644
--- a/include/linux/spinlock.h
+++ b/include/linux/spinlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SPINLOCK_H
 #define __LINUX_SPINLOCK_H
 
diff --git a/include/linux/splice.h b/include/linux/splice.h
index db42746..74b4911 100644
--- a/include/linux/splice.h
+++ b/include/linux/splice.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Function declerations and data structures related to the splice
  * implementation.
diff --git a/include/linux/ssb/ssb.h b/include/linux/ssb/ssb.h
index 26a0b3c..3b43655 100644
--- a/include/linux/ssb/ssb.h
+++ b/include/linux/ssb/ssb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_SSB_H_
 #define LINUX_SSB_H_
 
diff --git a/include/linux/ssb/ssb_driver_gige.h b/include/linux/ssb/ssb_driver_gige.h
index 0688472..31593b3 100644
--- a/include/linux/ssb/ssb_driver_gige.h
+++ b/include/linux/ssb/ssb_driver_gige.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_SSB_DRIVER_GIGE_H_
 #define LINUX_SSB_DRIVER_GIGE_H_
 
diff --git a/include/linux/ssb/ssb_driver_mips.h b/include/linux/ssb/ssb_driver_mips.h
index 6535e47..bef6bba 100644
--- a/include/linux/ssb/ssb_driver_mips.h
+++ b/include/linux/ssb/ssb_driver_mips.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_SSB_MIPSCORE_H_
 #define LINUX_SSB_MIPSCORE_H_
 
diff --git a/include/linux/ssb/ssb_driver_pci.h b/include/linux/ssb/ssb_driver_pci.h
index 41e330e..42824bd 100644
--- a/include/linux/ssb/ssb_driver_pci.h
+++ b/include/linux/ssb/ssb_driver_pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_SSB_PCICORE_H_
 #define LINUX_SSB_PCICORE_H_
 
diff --git a/include/linux/ssb/ssb_embedded.h b/include/linux/ssb/ssb_embedded.h
index 8d8dedf..49604ac 100644
--- a/include/linux/ssb/ssb_embedded.h
+++ b/include/linux/ssb/ssb_embedded.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_SSB_EMBEDDED_H_
 #define LINUX_SSB_EMBEDDED_H_
 
diff --git a/include/linux/ssb/ssb_regs.h b/include/linux/ssb/ssb_regs.h
index c0f707a..210f464 100644
--- a/include/linux/ssb/ssb_regs.h
+++ b/include/linux/ssb/ssb_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_SSB_REGS_H_
 #define LINUX_SSB_REGS_H_
 
diff --git a/include/linux/stackprotector.h b/include/linux/stackprotector.h
index 6f3e54c..03696c7 100644
--- a/include/linux/stackprotector.h
+++ b/include/linux/stackprotector.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_STACKPROTECTOR_H
 #define _LINUX_STACKPROTECTOR_H 1
 
diff --git a/include/linux/stacktrace.h b/include/linux/stacktrace.h
index 4205f71..ba29a06 100644
--- a/include/linux/stacktrace.h
+++ b/include/linux/stacktrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_STACKTRACE_H
 #define __LINUX_STACKTRACE_H
 
diff --git a/include/linux/start_kernel.h b/include/linux/start_kernel.h
index d3e5f27..4b268d8 100644
--- a/include/linux/start_kernel.h
+++ b/include/linux/start_kernel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_START_KERNEL_H
 #define _LINUX_START_KERNEL_H
 
diff --git a/include/linux/stat.h b/include/linux/stat.h
index 64b6b3a..22484e4 100644
--- a/include/linux/stat.h
+++ b/include/linux/stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_STAT_H
 #define _LINUX_STAT_H
 
diff --git a/include/linux/statfs.h b/include/linux/statfs.h
index 0166d32..3142e98 100644
--- a/include/linux/statfs.h
+++ b/include/linux/statfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_STATFS_H
 #define _LINUX_STATFS_H
 
diff --git a/include/linux/stddef.h b/include/linux/stddef.h
index 9c61c7c..2181719 100644
--- a/include/linux/stddef.h
+++ b/include/linux/stddef.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_STDDEF_H
 #define _LINUX_STDDEF_H
 
diff --git a/include/linux/stop_machine.h b/include/linux/stop_machine.h
index 3d60275..6d3635c 100644
--- a/include/linux/stop_machine.h
+++ b/include/linux/stop_machine.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_STOP_MACHINE
 #define _LINUX_STOP_MACHINE
 
diff --git a/include/linux/string.h b/include/linux/string.h
index 54d2178..410ecf1 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_STRING_H_
 #define _LINUX_STRING_H_
 
diff --git a/include/linux/string_helpers.h b/include/linux/string_helpers.h
index 5ce9538..4397c52 100644
--- a/include/linux/string_helpers.h
+++ b/include/linux/string_helpers.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_STRING_HELPERS_H_
 #define _LINUX_STRING_HELPERS_H_
 
diff --git a/include/linux/stringhash.h b/include/linux/stringhash.h
index 7c2d951..e8f0f85 100644
--- a/include/linux/stringhash.h
+++ b/include/linux/stringhash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_STRINGHASH_H
 #define __LINUX_STRINGHASH_H
 
diff --git a/include/linux/sungem_phy.h b/include/linux/sungem_phy.h
index bd9be9f..3a11fa4 100644
--- a/include/linux/sungem_phy.h
+++ b/include/linux/sungem_phy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SUNGEM_PHY_H__
 #define __SUNGEM_PHY_H__
 
diff --git a/include/linux/sunrpc/addr.h b/include/linux/sunrpc/addr.h
index 5c9c6cd..07d4548 100644
--- a/include/linux/sunrpc/addr.h
+++ b/include/linux/sunrpc/addr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/sunrpc/addr.h
  *
diff --git a/include/linux/sunrpc/auth.h b/include/linux/sunrpc/auth.h
index 8fd3504..d9af474 100644
--- a/include/linux/sunrpc/auth.h
+++ b/include/linux/sunrpc/auth.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/sunrpc/auth.h
  *
diff --git a/include/linux/sunrpc/auth_gss.h b/include/linux/sunrpc/auth_gss.h
index cebdf87..0c9eac3 100644
--- a/include/linux/sunrpc/auth_gss.h
+++ b/include/linux/sunrpc/auth_gss.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/sunrpc/auth_gss.h
  *
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index 55ef67b..71c237e 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/include/linux/sunrpc/clnt.h
  *
diff --git a/include/linux/sunrpc/debug.h b/include/linux/sunrpc/debug.h
index 8da0f37..f6aeed0 100644
--- a/include/linux/sunrpc/debug.h
+++ b/include/linux/sunrpc/debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/sunrpc/debug.h
  *
diff --git a/include/linux/sunrpc/gss_api.h b/include/linux/sunrpc/gss_api.h
index 68ec78c..5ac5db4 100644
--- a/include/linux/sunrpc/gss_api.h
+++ b/include/linux/sunrpc/gss_api.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/sunrpc/gss_api.h
  *
diff --git a/include/linux/sunrpc/metrics.h b/include/linux/sunrpc/metrics.h
index 694eecb..9baed7b 100644
--- a/include/linux/sunrpc/metrics.h
+++ b/include/linux/sunrpc/metrics.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/include/linux/sunrpc/metrics.h
  *
diff --git a/include/linux/sunrpc/msg_prot.h b/include/linux/sunrpc/msg_prot.h
index 59cbf16..4722b28 100644
--- a/include/linux/sunrpc/msg_prot.h
+++ b/include/linux/sunrpc/msg_prot.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/sunrpc/msg_prot.h
  *
diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h
index 7f490be..a5704da 100644
--- a/include/linux/sunrpc/rpc_pipe_fs.h
+++ b/include/linux/sunrpc/rpc_pipe_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SUNRPC_RPC_PIPE_FS_H
 #define _LINUX_SUNRPC_RPC_PIPE_FS_H
 
diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h
index c1768f9..d96e74e 100644
--- a/include/linux/sunrpc/sched.h
+++ b/include/linux/sunrpc/sched.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/sunrpc/sched.h
  *
diff --git a/include/linux/sunrpc/stats.h b/include/linux/sunrpc/stats.h
index edc6421..84b92b4 100644
--- a/include/linux/sunrpc/stats.h
+++ b/include/linux/sunrpc/stats.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/sunrpc/stats.h
  *
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 38f561b..3b9f0d1 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/sunrpc/svc.h
  *
diff --git a/include/linux/sunrpc/svc_xprt.h b/include/linux/sunrpc/svc_xprt.h
index 6a2ad38..1caf7bc 100644
--- a/include/linux/sunrpc/svc_xprt.h
+++ b/include/linux/sunrpc/svc_xprt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/sunrpc/svc_xprt.h
  *
diff --git a/include/linux/sunrpc/svcauth.h b/include/linux/sunrpc/svcauth.h
index d039320..7c36565 100644
--- a/include/linux/sunrpc/svcauth.h
+++ b/include/linux/sunrpc/svcauth.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/sunrpc/svcauth.h
  *
diff --git a/include/linux/sunrpc/svcauth_gss.h b/include/linux/sunrpc/svcauth_gss.h
index 726aff1..a4528b2 100644
--- a/include/linux/sunrpc/svcauth_gss.h
+++ b/include/linux/sunrpc/svcauth_gss.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/sunrpc/svcauth_gss.h
  *
diff --git a/include/linux/sunrpc/svcsock.h b/include/linux/sunrpc/svcsock.h
index 2e78013..119718a 100644
--- a/include/linux/sunrpc/svcsock.h
+++ b/include/linux/sunrpc/svcsock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/sunrpc/svcsock.h
  *
diff --git a/include/linux/sunrpc/timer.h b/include/linux/sunrpc/timer.h
index 697d6e6..242dbe0 100644
--- a/include/linux/sunrpc/timer.h
+++ b/include/linux/sunrpc/timer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/include/linux/sunrpc/timer.h
  *
diff --git a/include/linux/sunrpc/types.h b/include/linux/sunrpc/types.h
index 11a7536..bd3c8e0 100644
--- a/include/linux/sunrpc/types.h
+++ b/include/linux/sunrpc/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/sunrpc/types.h
  *
diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h
index 86b59e3..d950223 100644
--- a/include/linux/sunrpc/xdr.h
+++ b/include/linux/sunrpc/xdr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * XDR standard data types and function declarations
  *
diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index 5a7bff4..7fad838 100644
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/include/linux/sunrpc/xprt.h
  *
diff --git a/include/linux/sunrpc/xprtmultipath.h b/include/linux/sunrpc/xprtmultipath.h
index 507418c..af1257c 100644
--- a/include/linux/sunrpc/xprtmultipath.h
+++ b/include/linux/sunrpc/xprtmultipath.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * RPC client multipathing definitions
  *
diff --git a/include/linux/sunrpc/xprtsock.h b/include/linux/sunrpc/xprtsock.h
index c9959d7..ae0f99b 100644
--- a/include/linux/sunrpc/xprtsock.h
+++ b/include/linux/sunrpc/xprtsock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/include/linux/sunrpc/xprtsock.h
  *
diff --git a/include/linux/sunserialcore.h b/include/linux/sunserialcore.h
index dbe4d7f..c12d1c7 100644
--- a/include/linux/sunserialcore.h
+++ b/include/linux/sunserialcore.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* sunserialcore.h
  *
  * Generic SUN serial/kbd/ms layer.  Based entirely
diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index d10b798..d60b0f5 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SUSPEND_H
 #define _LINUX_SUSPEND_H
 
diff --git a/include/linux/svga.h b/include/linux/svga.h
index bfa68e8..3bfe462 100644
--- a/include/linux/svga.h
+++ b/include/linux/svga.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SVGA_H
 #define _LINUX_SVGA_H
 
diff --git a/include/linux/sw842.h b/include/linux/sw842.h
index 109ba04..3e29f5d 100644
--- a/include/linux/sw842.h
+++ b/include/linux/sw842.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SW842_H__
 #define __SW842_H__
 
diff --git a/include/linux/swab.h b/include/linux/swab.h
index 9ad3c60..e466fd1 100644
--- a/include/linux/swab.h
+++ b/include/linux/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SWAB_H
 #define _LINUX_SWAB_H
 
diff --git a/include/linux/swait.h b/include/linux/swait.h
index 73e97a0..29c9eb4 100644
--- a/include/linux/swait.h
+++ b/include/linux/swait.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SWAIT_H
 #define _LINUX_SWAIT_H
 
diff --git a/include/linux/swap.h b/include/linux/swap.h
index 8a80729..b489bd7 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SWAP_H
 #define _LINUX_SWAP_H
 
diff --git a/include/linux/swap_cgroup.h b/include/linux/swap_cgroup.h
index b2b8ec7..a12dd1c 100644
--- a/include/linux/swap_cgroup.h
+++ b/include/linux/swap_cgroup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SWAP_CGROUP_H
 #define __LINUX_SWAP_CGROUP_H
 
diff --git a/include/linux/swap_slots.h b/include/linux/swap_slots.h
index 6ef92d1..e36b200 100644
--- a/include/linux/swap_slots.h
+++ b/include/linux/swap_slots.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SWAP_SLOTS_H
 #define _LINUX_SWAP_SLOTS_H
 
diff --git a/include/linux/swapfile.h b/include/linux/swapfile.h
index 388293a..06bd7b0 100644
--- a/include/linux/swapfile.h
+++ b/include/linux/swapfile.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SWAPFILE_H
 #define _LINUX_SWAPFILE_H
 
diff --git a/include/linux/swapops.h b/include/linux/swapops.h
index 291c4b5..9c5a262 100644
--- a/include/linux/swapops.h
+++ b/include/linux/swapops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SWAPOPS_H
 #define _LINUX_SWAPOPS_H
 
diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
index 15e7160..24ed817 100644
--- a/include/linux/swiotlb.h
+++ b/include/linux/swiotlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SWIOTLB_H
 #define __LINUX_SWIOTLB_H
 
diff --git a/include/linux/sys.h b/include/linux/sys.h
index daa6008..3ebd981 100644
--- a/include/linux/sys.h
+++ b/include/linux/sys.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SYS_H
 #define _LINUX_SYS_H
 
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index 1d4dba4..74f91ee 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * sysctl.h: General linux system control interface
  *
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index aa02c32..e32dfe0 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * sysfs.h - definitions for the device driver filesystem
  *
diff --git a/include/linux/sysrq.h b/include/linux/sysrq.h
index 387fa7d..8c71874 100644
--- a/include/linux/sysrq.h
+++ b/include/linux/sysrq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* -*- linux-c -*-
  *
  *	$Id: sysrq.h,v 1.3 1997/07/17 11:54:33 mj Exp $
diff --git a/include/linux/sysv_fs.h b/include/linux/sysv_fs.h
index e47d6d9..5cf77db 100644
--- a/include/linux/sysv_fs.h
+++ b/include/linux/sysv_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SYSV_FS_H
 #define _LINUX_SYSV_FS_H
 
diff --git a/include/linux/t10-pi.h b/include/linux/t10-pi.h
index 635a3c5..c6aa8a3 100644
--- a/include/linux/t10-pi.h
+++ b/include/linux/t10-pi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_T10_PI_H
 #define _LINUX_T10_PI_H
 
diff --git a/include/linux/task_io_accounting.h b/include/linux/task_io_accounting.h
index bdf855c..6f6acce 100644
--- a/include/linux/task_io_accounting.h
+++ b/include/linux/task_io_accounting.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * task_io_accounting: a structure which is used for recording a single task's
  * IO statistics.
diff --git a/include/linux/task_io_accounting_ops.h b/include/linux/task_io_accounting_ops.h
index 4d090f9..bb5498b 100644
--- a/include/linux/task_io_accounting_ops.h
+++ b/include/linux/task_io_accounting_ops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Task I/O accounting operations
  */
diff --git a/include/linux/task_work.h b/include/linux/task_work.h
index ca5a1cf..bd9a6a9 100644
--- a/include/linux/task_work.h
+++ b/include/linux/task_work.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_TASK_WORK_H
 #define _LINUX_TASK_WORK_H
 
diff --git a/include/linux/taskstats_kern.h b/include/linux/taskstats_kern.h
index e2a5daf..dbb4d12 100644
--- a/include/linux/taskstats_kern.h
+++ b/include/linux/taskstats_kern.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* taskstats_kern.h - kernel header for per-task statistics interface
  *
  * Copyright (C) Shailabh Nagar, IBM Corp. 2006
diff --git a/include/linux/textsearch.h b/include/linux/textsearch.h
index cfaee86..0494db3 100644
--- a/include/linux/textsearch.h
+++ b/include/linux/textsearch.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_TEXTSEARCH_H
 #define __LINUX_TEXTSEARCH_H
 
diff --git a/include/linux/textsearch_fsm.h b/include/linux/textsearch_fsm.h
index fdfa078..b57231f 100644
--- a/include/linux/textsearch_fsm.h
+++ b/include/linux/textsearch_fsm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_TEXTSEARCH_FSM_H
 #define __LINUX_TEXTSEARCH_FSM_H
 
diff --git a/include/linux/thinkpad_acpi.h b/include/linux/thinkpad_acpi.h
index 361de59..9fb3179 100644
--- a/include/linux/thinkpad_acpi.h
+++ b/include/linux/thinkpad_acpi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __THINKPAD_ACPI_H__
 #define __THINKPAD_ACPI_H__
 
diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h
index 5f7eeab..4bcdf00 100644
--- a/include/linux/thread_info.h
+++ b/include/linux/thread_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* thread_info.h: common low-level thread information accessors
  *
  * Copyright (C) 2002  David Howells (dhowells@redhat.com)
diff --git a/include/linux/threads.h b/include/linux/threads.h
index 383ab95..3086dba 100644
--- a/include/linux/threads.h
+++ b/include/linux/threads.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_THREADS_H
 #define _LINUX_THREADS_H
 
diff --git a/include/linux/tick.h b/include/linux/tick.h
index fe01e68..cf413b3 100644
--- a/include/linux/tick.h
+++ b/include/linux/tick.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Tick related global functions
  */
diff --git a/include/linux/time.h b/include/linux/time.h
index 9bc1f94..87c36cf 100644
--- a/include/linux/time.h
+++ b/include/linux/time.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_TIME_H
 #define _LINUX_TIME_H
 
diff --git a/include/linux/time64.h b/include/linux/time64.h
index 980c71b..ad33260 100644
--- a/include/linux/time64.h
+++ b/include/linux/time64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_TIME64_H
 #define _LINUX_TIME64_H
 
diff --git a/include/linux/timekeeper_internal.h b/include/linux/timekeeper_internal.h
index 0a0a53d..97154c6 100644
--- a/include/linux/timekeeper_internal.h
+++ b/include/linux/timekeeper_internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * You SHOULD NOT be including this unless you're vsyscall
  * handling code or timekeeping internal code!
diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h
index ddc229f..0021575 100644
--- a/include/linux/timekeeping.h
+++ b/include/linux/timekeeping.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_TIMEKEEPING_H
 #define _LINUX_TIMEKEEPING_H
 
diff --git a/include/linux/timer.h b/include/linux/timer.h
index 6383c52..ac66f29 100644
--- a/include/linux/timer.h
+++ b/include/linux/timer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_TIMER_H
 #define _LINUX_TIMER_H
 
diff --git a/include/linux/timerfd.h b/include/linux/timerfd.h
index bab0b1a..0c33260 100644
--- a/include/linux/timerfd.h
+++ b/include/linux/timerfd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  include/linux/timerfd.h
  *
diff --git a/include/linux/timerqueue.h b/include/linux/timerqueue.h
index 7eec17a..78b8cc7 100644
--- a/include/linux/timerqueue.h
+++ b/include/linux/timerqueue.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_TIMERQUEUE_H
 #define _LINUX_TIMERQUEUE_H
 
diff --git a/include/linux/tpm_command.h b/include/linux/tpm_command.h
index 727512e..f5c03e9 100644
--- a/include/linux/tpm_command.h
+++ b/include/linux/tpm_command.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_TPM_COMMAND_H__
 #define __LINUX_TPM_COMMAND_H__
 
diff --git a/include/linux/trace.h b/include/linux/trace.h
index 9330a58..d24991c 100644
--- a/include/linux/trace.h
+++ b/include/linux/trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_TRACE_H
 #define _LINUX_TRACE_H
 
diff --git a/include/linux/trace_clock.h b/include/linux/trace_clock.h
index 1d7ca27..00e8f98 100644
--- a/include/linux/trace_clock.h
+++ b/include/linux/trace_clock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_TRACE_CLOCK_H
 #define _LINUX_TRACE_CLOCK_H
 
diff --git a/include/linux/trace_events.h b/include/linux/trace_events.h
index 2e0f222..2bcb4dc 100644
--- a/include/linux/trace_events.h
+++ b/include/linux/trace_events.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef _LINUX_TRACE_EVENT_H
 #define _LINUX_TRACE_EVENT_H
diff --git a/include/linux/trace_seq.h b/include/linux/trace_seq.h
index cfaf5a1..6609b39a 100644
--- a/include/linux/trace_seq.h
+++ b/include/linux/trace_seq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_TRACE_SEQ_H
 #define _LINUX_TRACE_SEQ_H
 
diff --git a/include/linux/tracepoint-defs.h b/include/linux/tracepoint-defs.h
index a031920..64ed706 100644
--- a/include/linux/tracepoint-defs.h
+++ b/include/linux/tracepoint-defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef TRACEPOINT_DEFS_H
 #define TRACEPOINT_DEFS_H 1
 
diff --git a/include/linux/tsacct_kern.h b/include/linux/tsacct_kern.h
index 3251965..d8ddce2 100644
--- a/include/linux/tsacct_kern.h
+++ b/include/linux/tsacct_kern.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * tsacct_kern.h - kernel header for system accounting over taskstats interface
  *
diff --git a/include/linux/tty.h b/include/linux/tty.h
index cf53eb5..7ac8ba2 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_TTY_H
 #define _LINUX_TTY_H
 
diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h
index fcdc0f5..31c2b5b 100644
--- a/include/linux/tty_driver.h
+++ b/include/linux/tty_driver.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_TTY_DRIVER_H
 #define _LINUX_TTY_DRIVER_H
 
diff --git a/include/linux/tty_flip.h b/include/linux/tty_flip.h
index d43837f..767f620 100644
--- a/include/linux/tty_flip.h
+++ b/include/linux/tty_flip.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_TTY_FLIP_H
 #define _LINUX_TTY_FLIP_H
 
diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h
index 3971cf0..3bc5144 100644
--- a/include/linux/tty_ldisc.h
+++ b/include/linux/tty_ldisc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_TTY_LDISC_H
 #define _LINUX_TTY_LDISC_H
 
diff --git a/include/linux/typecheck.h b/include/linux/typecheck.h
index eb5b74a..20d3103 100644
--- a/include/linux/typecheck.h
+++ b/include/linux/typecheck.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef TYPECHECK_H_INCLUDED
 #define TYPECHECK_H_INCLUDED
 
diff --git a/include/linux/types.h b/include/linux/types.h
index 258099a..34fce54 100644
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_TYPES_H
 #define _LINUX_TYPES_H
 
diff --git a/include/linux/u64_stats_sync.h b/include/linux/u64_stats_sync.h
index 650f3dd..5bdbd9f 100644
--- a/include/linux/u64_stats_sync.h
+++ b/include/linux/u64_stats_sync.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_U64_STATS_SYNC_H
 #define _LINUX_U64_STATS_SYNC_H
 
diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h
index 20ef8e6..251e655 100644
--- a/include/linux/uaccess.h
+++ b/include/linux/uaccess.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_UACCESS_H__
 #define __LINUX_UACCESS_H__
 
diff --git a/include/linux/ucs2_string.h b/include/linux/ucs2_string.h
index bb679b4..cf3ada3 100644
--- a/include/linux/ucs2_string.h
+++ b/include/linux/ucs2_string.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_UCS2_STRING_H_
 #define _LINUX_UCS2_STRING_H_
 
diff --git a/include/linux/uidgid.h b/include/linux/uidgid.h
index 25e9d92..b0542cd 100644
--- a/include/linux/uidgid.h
+++ b/include/linux/uidgid.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_UIDGID_H
 #define _LINUX_UIDGID_H
 
diff --git a/include/linux/ulpi/driver.h b/include/linux/ulpi/driver.h
index a7af21a..c7a1810 100644
--- a/include/linux/ulpi/driver.h
+++ b/include/linux/ulpi/driver.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_ULPI_DRIVER_H
 #define __LINUX_ULPI_DRIVER_H
 
diff --git a/include/linux/ulpi/interface.h b/include/linux/ulpi/interface.h
index a2011a9..e93cfa3 100644
--- a/include/linux/ulpi/interface.h
+++ b/include/linux/ulpi/interface.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_ULPI_INTERFACE_H
 #define __LINUX_ULPI_INTERFACE_H
 
diff --git a/include/linux/ulpi/regs.h b/include/linux/ulpi/regs.h
index b5b8b88..9f60787 100644
--- a/include/linux/ulpi/regs.h
+++ b/include/linux/ulpi/regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_ULPI_REGS_H
 #define __LINUX_ULPI_REGS_H
 
diff --git a/include/linux/unaligned/access_ok.h b/include/linux/unaligned/access_ok.h
index 33383ca..167aa84 100644
--- a/include/linux/unaligned/access_ok.h
+++ b/include/linux/unaligned/access_ok.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_UNALIGNED_ACCESS_OK_H
 #define _LINUX_UNALIGNED_ACCESS_OK_H
 
diff --git a/include/linux/unaligned/be_byteshift.h b/include/linux/unaligned/be_byteshift.h
index 9356b24..8bdb8fa 100644
--- a/include/linux/unaligned/be_byteshift.h
+++ b/include/linux/unaligned/be_byteshift.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_UNALIGNED_BE_BYTESHIFT_H
 #define _LINUX_UNALIGNED_BE_BYTESHIFT_H
 
diff --git a/include/linux/unaligned/be_memmove.h b/include/linux/unaligned/be_memmove.h
index c2a76c5..7164214 100644
--- a/include/linux/unaligned/be_memmove.h
+++ b/include/linux/unaligned/be_memmove.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_UNALIGNED_BE_MEMMOVE_H
 #define _LINUX_UNALIGNED_BE_MEMMOVE_H
 
diff --git a/include/linux/unaligned/be_struct.h b/include/linux/unaligned/be_struct.h
index 1324158..15ea503 100644
--- a/include/linux/unaligned/be_struct.h
+++ b/include/linux/unaligned/be_struct.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_UNALIGNED_BE_STRUCT_H
 #define _LINUX_UNALIGNED_BE_STRUCT_H
 
diff --git a/include/linux/unaligned/generic.h b/include/linux/unaligned/generic.h
index 02d97ff..57d3114 100644
--- a/include/linux/unaligned/generic.h
+++ b/include/linux/unaligned/generic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_UNALIGNED_GENERIC_H
 #define _LINUX_UNALIGNED_GENERIC_H
 
diff --git a/include/linux/unaligned/le_byteshift.h b/include/linux/unaligned/le_byteshift.h
index be376fb..1628b75 100644
--- a/include/linux/unaligned/le_byteshift.h
+++ b/include/linux/unaligned/le_byteshift.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_UNALIGNED_LE_BYTESHIFT_H
 #define _LINUX_UNALIGNED_LE_BYTESHIFT_H
 
diff --git a/include/linux/unaligned/le_memmove.h b/include/linux/unaligned/le_memmove.h
index 269849b..9202e86 100644
--- a/include/linux/unaligned/le_memmove.h
+++ b/include/linux/unaligned/le_memmove.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_UNALIGNED_LE_MEMMOVE_H
 #define _LINUX_UNALIGNED_LE_MEMMOVE_H
 
diff --git a/include/linux/unaligned/le_struct.h b/include/linux/unaligned/le_struct.h
index 088c457..9977987 100644
--- a/include/linux/unaligned/le_struct.h
+++ b/include/linux/unaligned/le_struct.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_UNALIGNED_LE_STRUCT_H
 #define _LINUX_UNALIGNED_LE_STRUCT_H
 
diff --git a/include/linux/unaligned/memmove.h b/include/linux/unaligned/memmove.h
index eeb5a77..ac71b53 100644
--- a/include/linux/unaligned/memmove.h
+++ b/include/linux/unaligned/memmove.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_UNALIGNED_MEMMOVE_H
 #define _LINUX_UNALIGNED_MEMMOVE_H
 
diff --git a/include/linux/usb.h b/include/linux/usb.h
index cb9fbd5..9c63792 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_USB_H
 #define __LINUX_USB_H
 
diff --git a/include/linux/usb/atmel_usba_udc.h b/include/linux/usb/atmel_usba_udc.h
index ba99af2..9bb00df 100644
--- a/include/linux/usb/atmel_usba_udc.h
+++ b/include/linux/usb/atmel_usba_udc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Platform data definitions for Atmel USBA gadget driver.
  */
diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
index 6cc96bb..523aa088 100644
--- a/include/linux/usb/ch9.h
+++ b/include/linux/usb/ch9.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This file holds USB constants and structures that are needed for
  * USB device APIs.  These are used by the USB device model, which is
diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h
index d725cff..07f9936 100644
--- a/include/linux/usb/chipidea.h
+++ b/include/linux/usb/chipidea.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Platform data for the chipidea USB dual role controller
  */
diff --git a/include/linux/usb/ehci-dbgp.h b/include/linux/usb/ehci-dbgp.h
index 7344d9e..62ab380 100644
--- a/include/linux/usb/ehci-dbgp.h
+++ b/include/linux/usb/ehci-dbgp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Standalone EHCI usb debug driver
  *
diff --git a/include/linux/usb/ezusb.h b/include/linux/usb/ezusb.h
index 639ee45..4870471 100644
--- a/include/linux/usb/ezusb.h
+++ b/include/linux/usb/ezusb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __EZUSB_H
 #define __EZUSB_H
 
diff --git a/include/linux/usb/functionfs.h b/include/linux/usb/functionfs.h
index 7119066..570578c 100644
--- a/include/linux/usb/functionfs.h
+++ b/include/linux/usb/functionfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_FUNCTIONFS_H__
 #define __LINUX_FUNCTIONFS_H__ 1
 
diff --git a/include/linux/usb/gadget_configfs.h b/include/linux/usb/gadget_configfs.h
index c36e957..d61aebd 100644
--- a/include/linux/usb/gadget_configfs.h
+++ b/include/linux/usb/gadget_configfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __GADGET_CONFIGFS__
 #define __GADGET_CONFIGFS__
 
diff --git a/include/linux/usb/iowarrior.h b/include/linux/usb/iowarrior.h
index 4fd6513..56559bc 100644
--- a/include/linux/usb/iowarrior.h
+++ b/include/linux/usb/iowarrior.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_USB_IOWARRIOR_H
 #define __LINUX_USB_IOWARRIOR_H
 
diff --git a/include/linux/usb/irda.h b/include/linux/usb/irda.h
index e345cea..396d2b0 100644
--- a/include/linux/usb/irda.h
+++ b/include/linux/usb/irda.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * USB IrDA Bridge Device Definition
  */
diff --git a/include/linux/usb/isp116x.h b/include/linux/usb/isp116x.h
index 96ca114..1f331c2 100644
--- a/include/linux/usb/isp116x.h
+++ b/include/linux/usb/isp116x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Board initialization code should put one of these into dev->platform_data
  * and place the isp116x onto platform_bus.
diff --git a/include/linux/usb/isp1362.h b/include/linux/usb/isp1362.h
index 642684b..5356c4a 100644
--- a/include/linux/usb/isp1362.h
+++ b/include/linux/usb/isp1362.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * board initialization code should put one of these into dev->platform_data
  * and place the isp1362 onto platform_bus.
diff --git a/include/linux/usb/isp1760.h b/include/linux/usb/isp1760.h
index de7de53..b75ded2 100644
--- a/include/linux/usb/isp1760.h
+++ b/include/linux/usb/isp1760.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * board initialization should put one of these into dev->platform_data
  * and place the isp1760 onto platform_bus named "isp1760-hcd".
diff --git a/include/linux/usb/musb.h b/include/linux/usb/musb.h
index d315c89..5d19e67 100644
--- a/include/linux/usb/musb.h
+++ b/include/linux/usb/musb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This is used to for host and peripheral modes of the driver for
  * Inventra (Multidrop) Highspeed Dual-Role Controllers:  (M)HDRC.
diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h
index 67929df..69f1b63 100644
--- a/include/linux/usb/otg.h
+++ b/include/linux/usb/otg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* USB OTG (On The Go) defines */
 /*
  *
diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h
index 8c69148..b7a2625 100644
--- a/include/linux/usb/phy.h
+++ b/include/linux/usb/phy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * USB PHY defines
  *
diff --git a/include/linux/usb/quirks.h b/include/linux/usb/quirks.h
index de2a722..7cd553a 100644
--- a/include/linux/usb/quirks.h
+++ b/include/linux/usb/quirks.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This file holds the definitions of quirks found in USB devices.
  * Only quirks that affect the whole device, not an interface,
diff --git a/include/linux/usb/sl811.h b/include/linux/usb/sl811.h
index 3afe4d1..6c97f8e 100644
--- a/include/linux/usb/sl811.h
+++ b/include/linux/usb/sl811.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * board initialization should put one of these into dev->platform_data
  * and place the sl811hs onto platform_bus named "sl811-hcd".
diff --git a/include/linux/usb/typec.h b/include/linux/usb/typec.h
index ffe7487..0d44ce6 100644
--- a/include/linux/usb/typec.h
+++ b/include/linux/usb/typec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef __LINUX_USB_TYPEC_H
 #define __LINUX_USB_TYPEC_H
diff --git a/include/linux/usb/uas.h b/include/linux/usb/uas.h
index 3fc8e8b..aa3ad39 100644
--- a/include/linux/usb/uas.h
+++ b/include/linux/usb/uas.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __USB_UAS_H__
 #define __USB_UAS_H__
 
diff --git a/include/linux/usb/usb_phy_generic.h b/include/linux/usb/usb_phy_generic.h
index c13632d5..7408cf5 100644
--- a/include/linux/usb/usb_phy_generic.h
+++ b/include/linux/usb/usb_phy_generic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_USB_NOP_XCEIV_H
 #define __LINUX_USB_NOP_XCEIV_H
 
diff --git a/include/linux/usb_usual.h b/include/linux/usb_usual.h
index 0aae1b2..000a595 100644
--- a/include/linux/usb_usual.h
+++ b/include/linux/usb_usual.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Interface to the libusual.
  *
diff --git a/include/linux/user-return-notifier.h b/include/linux/user-return-notifier.h
index 9c4a445..c07b386 100644
--- a/include/linux/user-return-notifier.h
+++ b/include/linux/user-return-notifier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_USER_RETURN_NOTIFIER_H
 #define _LINUX_USER_RETURN_NOTIFIER_H
 
diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h
index c18e012..3fe714d 100644
--- a/include/linux/user_namespace.h
+++ b/include/linux/user_namespace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_USER_NAMESPACE_H
 #define _LINUX_USER_NAMESPACE_H
 
diff --git a/include/linux/userfaultfd_k.h b/include/linux/userfaultfd_k.h
index 48a3483..f2f3b68 100644
--- a/include/linux/userfaultfd_k.h
+++ b/include/linux/userfaultfd_k.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  include/linux/userfaultfd_k.h
  *
diff --git a/include/linux/util_macros.h b/include/linux/util_macros.h
index f9b2ce5..72299f2 100644
--- a/include/linux/util_macros.h
+++ b/include/linux/util_macros.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_HELPER_MACROS_H_
 #define _LINUX_HELPER_MACROS_H_
 
diff --git a/include/linux/uts.h b/include/linux/uts.h
index 6ddbd86..d628295 100644
--- a/include/linux/uts.h
+++ b/include/linux/uts.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_UTS_H
 #define _LINUX_UTS_H
 
diff --git a/include/linux/utsname.h b/include/linux/utsname.h
index da826ed..c8060c2 100644
--- a/include/linux/utsname.h
+++ b/include/linux/utsname.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_UTSNAME_H
 #define _LINUX_UTSNAME_H
 
diff --git a/include/linux/vermagic.h b/include/linux/vermagic.h
index af6c03f..bae807e 100644
--- a/include/linux/vermagic.h
+++ b/include/linux/vermagic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <generated/utsrelease.h>
 
 /* Simply sanity version stamp for modules. */
diff --git a/include/linux/vfs.h b/include/linux/vfs.h
index e701d05..33952ac 100644
--- a/include/linux/vfs.h
+++ b/include/linux/vfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_VFS_H
 #define _LINUX_VFS_H
 
diff --git a/include/linux/via.h b/include/linux/via.h
index 86ae3bc..38ea9a7 100644
--- a/include/linux/via.h
+++ b/include/linux/via.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Miscellaneous definitions for VIA chipsets
    Currently used only by drivers/parport/parport_pc.c */
 
diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index 28b0e96..988c735 100644
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_VIRTIO_H
 #define _LINUX_VIRTIO_H
 /* Everything a virtio driver needs to work with any particular virtio
diff --git a/include/linux/virtio_byteorder.h b/include/linux/virtio_byteorder.h
index ce63a2c..825aaef 100644
--- a/include/linux/virtio_byteorder.h
+++ b/include/linux/virtio_byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_VIRTIO_BYTEORDER_H
 #define _LINUX_VIRTIO_BYTEORDER_H
 #include <linux/types.h>
diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
index 0133d8a..5559a2d 100644
--- a/include/linux/virtio_config.h
+++ b/include/linux/virtio_config.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_VIRTIO_CONFIG_H
 #define _LINUX_VIRTIO_CONFIG_H
 
diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h
index 32fb046..210034c 100644
--- a/include/linux/virtio_net.h
+++ b/include/linux/virtio_net.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_VIRTIO_NET_H
 #define _LINUX_VIRTIO_NET_H
 
diff --git a/include/linux/virtio_ring.h b/include/linux/virtio_ring.h
index 270cfa8..bbf3252 100644
--- a/include/linux/virtio_ring.h
+++ b/include/linux/virtio_ring.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_VIRTIO_RING_H
 #define _LINUX_VIRTIO_RING_H
 
diff --git a/include/linux/virtio_vsock.h b/include/linux/virtio_vsock.h
index ab13f07..e223e26 100644
--- a/include/linux/virtio_vsock.h
+++ b/include/linux/virtio_vsock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_VIRTIO_VSOCK_H
 #define _LINUX_VIRTIO_VSOCK_H
 
diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h
index d77bc35..5c7f010 100644
--- a/include/linux/vm_event_item.h
+++ b/include/linux/vm_event_item.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef VM_EVENT_ITEM_H_INCLUDED
 #define VM_EVENT_ITEM_H_INCLUDED
 
diff --git a/include/linux/vmacache.h b/include/linux/vmacache.h
index 1081db9..a5b3aa8 100644
--- a/include/linux/vmacache.h
+++ b/include/linux/vmacache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_VMACACHE_H
 #define __LINUX_VMACACHE_H
 
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index 2d92dd0..1e5d8c3 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_VMALLOC_H
 #define _LINUX_VMALLOC_H
 
diff --git a/include/linux/vme.h b/include/linux/vme.h
index 25874da..7e82bf5 100644
--- a/include/linux/vme.h
+++ b/include/linux/vme.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _VME_H_
 #define _VME_H_
 
diff --git a/include/linux/vmpressure.h b/include/linux/vmpressure.h
index 3347cc3..61e6fdd 100644
--- a/include/linux/vmpressure.h
+++ b/include/linux/vmpressure.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_VMPRESSURE_H
 #define __LINUX_VMPRESSURE_H
 
diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
index ade7cb5..1e0cb72 100644
--- a/include/linux/vmstat.h
+++ b/include/linux/vmstat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_VMSTAT_H
 #define _LINUX_VMSTAT_H
 
diff --git a/include/linux/vt.h b/include/linux/vt.h
index b186e04..9820ae4 100644
--- a/include/linux/vt.h
+++ b/include/linux/vt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_VT_H
 #define _LINUX_VT_H
 
diff --git a/include/linux/vt_buffer.h b/include/linux/vt_buffer.h
index 30b6e0d..848db1b 100644
--- a/include/linux/vt_buffer.h
+++ b/include/linux/vt_buffer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	include/linux/vt_buffer.h -- Access to VT screen buffer
  *
diff --git a/include/linux/vt_kern.h b/include/linux/vt_kern.h
index 833fdd4..3fd0791 100644
--- a/include/linux/vt_kern.h
+++ b/include/linux/vt_kern.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _VT_KERN_H
 #define _VT_KERN_H
 
diff --git a/include/linux/vtime.h b/include/linux/vtime.h
index 18b405e..a26ed10 100644
--- a/include/linux/vtime.h
+++ b/include/linux/vtime.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_KERNEL_VTIME_H
 #define _LINUX_KERNEL_VTIME_H
 
diff --git a/include/linux/wait.h b/include/linux/wait.h
index 87c4641..1587154 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_WAIT_H
 #define _LINUX_WAIT_H
 /*
diff --git a/include/linux/wait_bit.h b/include/linux/wait_bit.h
index 12b2666..af0d495 100644
--- a/include/linux/wait_bit.h
+++ b/include/linux/wait_bit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_WAIT_BIT_H
 #define _LINUX_WAIT_BIT_H
 
diff --git a/include/linux/wanrouter.h b/include/linux/wanrouter.h
index 8198a63..f635855 100644
--- a/include/linux/wanrouter.h
+++ b/include/linux/wanrouter.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * wanrouter.h	Legacy declarations kept around until X25 is removed
  */
diff --git a/include/linux/watchdog.h b/include/linux/watchdog.h
index a786e5e..44985c4 100644
--- a/include/linux/watchdog.h
+++ b/include/linux/watchdog.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Generic watchdog defines. Derived from..
  *
diff --git a/include/linux/win_minmax.h b/include/linux/win_minmax.h
index 5656960..4ca2842 100644
--- a/include/linux/win_minmax.h
+++ b/include/linux/win_minmax.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /**
  * lib/minmax.c: windowed min/max tracker by Kathleen Nichols.
  *
diff --git a/include/linux/wireless.h b/include/linux/wireless.h
index 4ea4c6e..2d1b545 100644
--- a/include/linux/wireless.h
+++ b/include/linux/wireless.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This file define a set of standard wireless extensions
  *
diff --git a/include/linux/wm97xx.h b/include/linux/wm97xx.h
index fd98bb9..58e082d 100644
--- a/include/linux/wm97xx.h
+++ b/include/linux/wm97xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 /*
  * Register bits and API for Wolfson WM97xx series of codecs
diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index 1c49431..0eae11f 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * workqueue.h --- work queue handling for Linux.
  */
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index d581579..e12d928 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/linux/writeback.h
  */
diff --git a/include/linux/ww_mutex.h b/include/linux/ww_mutex.h
index 5dd9a76..39fda19 100644
--- a/include/linux/ww_mutex.h
+++ b/include/linux/ww_mutex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Wound/Wait Mutexes: blocking mutual exclusion locks with deadlock avoidance
  *
diff --git a/include/linux/xattr.h b/include/linux/xattr.h
index e77605a..d70f77a4 100644
--- a/include/linux/xattr.h
+++ b/include/linux/xattr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
   File: linux/xattr.h
 
diff --git a/include/linux/z2_battery.h b/include/linux/z2_battery.h
index 7b97504..eaba53f 100644
--- a/include/linux/z2_battery.h
+++ b/include/linux/z2_battery.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_Z2_BATTERY_H
 #define _LINUX_Z2_BATTERY_H
 
diff --git a/include/linux/zbud.h b/include/linux/zbud.h
index e183a0a..b1eaf6e 100644
--- a/include/linux/zbud.h
+++ b/include/linux/zbud.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ZBUD_H_
 #define _ZBUD_H_
 
diff --git a/include/linux/zpool.h b/include/linux/zpool.h
index 2e97b77..004ba80 100644
--- a/include/linux/zpool.h
+++ b/include/linux/zpool.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * zpool memory storage api
  *
diff --git a/include/media/blackfin/bfin_capture.h b/include/media/blackfin/bfin_capture.h
index 56b9ce4..a999a397 100644
--- a/include/media/blackfin/bfin_capture.h
+++ b/include/media/blackfin/bfin_capture.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BFIN_CAPTURE_H_
 #define _BFIN_CAPTURE_H_
 
diff --git a/include/media/drv-intf/saa7146.h b/include/media/drv-intf/saa7146.h
index 4529432..769c6cf 100644
--- a/include/media/drv-intf/saa7146.h
+++ b/include/media/drv-intf/saa7146.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SAA7146__
 #define __SAA7146__
 
diff --git a/include/media/drv-intf/saa7146_vv.h b/include/media/drv-intf/saa7146_vv.h
index 0da6ccc..4e89e9f 100644
--- a/include/media/drv-intf/saa7146_vv.h
+++ b/include/media/drv-intf/saa7146_vv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SAA7146_VV__
 #define __SAA7146_VV__
 
diff --git a/include/media/drv-intf/sh_mobile_ceu.h b/include/media/drv-intf/sh_mobile_ceu.h
index 2f43f7d..555f0ec 100644
--- a/include/media/drv-intf/sh_mobile_ceu.h
+++ b/include/media/drv-intf/sh_mobile_ceu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_MOBILE_CEU_H__
 #define __ASM_SH_MOBILE_CEU_H__
 
diff --git a/include/media/i2c-addr.h b/include/media/i2c-addr.h
index 5d0f560..1b6872f 100644
--- a/include/media/i2c-addr.h
+++ b/include/media/i2c-addr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	V4L I2C address list
  *
diff --git a/include/media/i2c/ir-kbd-i2c.h b/include/media/i2c/ir-kbd-i2c.h
index ac8c556..76491c6 100644
--- a/include/media/i2c/ir-kbd-i2c.h
+++ b/include/media/i2c/ir-kbd-i2c.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IR_I2C
 #define _IR_I2C
 
diff --git a/include/media/i2c/mt9p031.h b/include/media/i2c/mt9p031.h
index 1ba3612..7c29c53 100644
--- a/include/media/i2c/mt9p031.h
+++ b/include/media/i2c/mt9p031.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef MT9P031_H
 #define MT9P031_H
 
diff --git a/include/media/i2c/mt9t001.h b/include/media/i2c/mt9t001.h
index 03fd63e..4b10905 100644
--- a/include/media/i2c/mt9t001.h
+++ b/include/media/i2c/mt9t001.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MEDIA_MT9T001_H
 #define _MEDIA_MT9T001_H
 
diff --git a/include/media/i2c/mt9v032.h b/include/media/i2c/mt9v032.h
index 12175a6..83a37cc 100644
--- a/include/media/i2c/mt9v032.h
+++ b/include/media/i2c/mt9v032.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MEDIA_MT9V032_H
 #define _MEDIA_MT9V032_H
 
diff --git a/include/media/tuner-types.h b/include/media/tuner-types.h
index aed5390..78f0654 100644
--- a/include/media/tuner-types.h
+++ b/include/media/tuner-types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * descriptions for simple tuners.
  */
diff --git a/include/media/tveeprom.h b/include/media/tveeprom.h
index 630bcf3..b56eaee 100644
--- a/include/media/tveeprom.h
+++ b/include/media/tveeprom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 /*
  * tveeprom - Contains structures and functions to work with Hauppauge
diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h
index e657614..28a686e 100644
--- a/include/media/v4l2-dev.h
+++ b/include/media/v4l2-dev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *
  *	V 4 L 2   D R I V E R   H E L P E R   A P I
diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h
index bd53121..a7b3f7c 100644
--- a/include/media/v4l2-ioctl.h
+++ b/include/media/v4l2-ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *
  *	V 4 L 2   D R I V E R   H E L P E R   A P I
diff --git a/include/media/videobuf-dvb.h b/include/media/videobuf-dvb.h
index c3bfa47..a14ac77 100644
--- a/include/media/videobuf-dvb.h
+++ b/include/media/videobuf-dvb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <dvbdev.h>
 #include <dmxdev.h>
 #include <dvb_demux.h>
diff --git a/include/media/videobuf2-dvb.h b/include/media/videobuf2-dvb.h
index 87b5590..5a31faa 100644
--- a/include/media/videobuf2-dvb.h
+++ b/include/media/videobuf2-dvb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _VIDEOBUF2_DVB_H_
 #define	_VIDEOBUF2_DVB_H_
 
diff --git a/include/net/Space.h b/include/net/Space.h
index 8a32771..27fb5c9 100644
--- a/include/net/Space.h
+++ b/include/net/Space.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* A unified ethernet device probe.  This is the easiest way to have every
  * ethernet adaptor have the name "eth[0123...]".
  */
diff --git a/include/net/act_api.h b/include/net/act_api.h
index b944e0e..97a908ac 100644
--- a/include/net/act_api.h
+++ b/include/net/act_api.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_ACT_API_H
 #define __NET_ACT_API_H
 
diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index f44ff24..35f5aab 100644
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ADDRCONF_H
 #define _ADDRCONF_H
 
diff --git a/include/net/af_unix.h b/include/net/af_unix.h
index afb37f8..a5ba41b 100644
--- a/include/net/af_unix.h
+++ b/include/net/af_unix.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_NET_AFUNIX_H
 #define __LINUX_NET_AFUNIX_H
 
diff --git a/include/net/ah.h b/include/net/ah.h
index 4e2dfa4..2d2dea5 100644
--- a/include/net/ah.h
+++ b/include/net/ah.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_AH_H
 #define _NET_AH_H
 
diff --git a/include/net/arp.h b/include/net/arp.h
index 17d90e4..dc8cd47 100644
--- a/include/net/arp.h
+++ b/include/net/arp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* linux/net/inet/arp.h */
 #ifndef _ARP_H
 #define _ARP_H
diff --git a/include/net/atmclip.h b/include/net/atmclip.h
index 5865924..70e350e 100644
--- a/include/net/atmclip.h
+++ b/include/net/atmclip.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* net/atm/atmarp.h - RFC1577 ATM ARP */
  
 /* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
diff --git a/include/net/ax25.h b/include/net/ax25.h
index c4a0cf6..76fb39c 100644
--- a/include/net/ax25.h
+++ b/include/net/ax25.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Declarations of AX.25 type objects.
  *
diff --git a/include/net/compat.h b/include/net/compat.h
index 13de0cc..a91bea8 100644
--- a/include/net/compat.h
+++ b/include/net/compat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef NET_COMPAT_H
 #define NET_COMPAT_H
 
diff --git a/include/net/datalink.h b/include/net/datalink.h
index 93cb18f..a966322 100644
--- a/include/net/datalink.h
+++ b/include/net/datalink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_INET_DATALINK_H_
 #define _NET_INET_DATALINK_H_
 
diff --git a/include/net/dn.h b/include/net/dn.h
index 913b73d..fc00362 100644
--- a/include/net/dn.h
+++ b/include/net/dn.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_DN_H
 #define _NET_DN_H
 
diff --git a/include/net/dn_dev.h b/include/net/dn_dev.h
index 197886c..595b4f6 100644
--- a/include/net/dn_dev.h
+++ b/include/net/dn_dev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_DN_DEV_H
 #define _NET_DN_DEV_H
 
diff --git a/include/net/dn_fib.h b/include/net/dn_fib.h
index 81210a8..6dd2213 100644
--- a/include/net/dn_fib.h
+++ b/include/net/dn_fib.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_DN_FIB_H
 #define _NET_DN_FIB_H
 
diff --git a/include/net/dn_neigh.h b/include/net/dn_neigh.h
index 5e902fc..2e3e779 100644
--- a/include/net/dn_neigh.h
+++ b/include/net/dn_neigh.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_DN_NEIGH_H
 #define _NET_DN_NEIGH_H
 
diff --git a/include/net/dsfield.h b/include/net/dsfield.h
index e1ad903..1a245ee 100644
--- a/include/net/dsfield.h
+++ b/include/net/dsfield.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* include/net/dsfield.h - Manipulation of the Differentiated Services field */
 
 /* Written 1998-2000 by Werner Almesberger, EPFL ICA */
diff --git a/include/net/dst.h b/include/net/dst.h
index 06a6765..694c2e6 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * net/dst.h	Protocol independent destination cache definitions.
  *
diff --git a/include/net/dst_cache.h b/include/net/dst_cache.h
index 151accae..72fd506 100644
--- a/include/net/dst_cache.h
+++ b/include/net/dst_cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_DST_CACHE_H
 #define _NET_DST_CACHE_H
 
diff --git a/include/net/dst_metadata.h b/include/net/dst_metadata.h
index a803129..91bc7bd 100644
--- a/include/net/dst_metadata.h
+++ b/include/net/dst_metadata.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_DST_METADATA_H
 #define __NET_DST_METADATA_H 1
 
diff --git a/include/net/dst_ops.h b/include/net/dst_ops.h
index c84b328..5ec645f 100644
--- a/include/net/dst_ops.h
+++ b/include/net/dst_ops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_DST_OPS_H
 #define _NET_DST_OPS_H
 #include <linux/types.h>
diff --git a/include/net/esp.h b/include/net/esp.h
index c41994d..117652e 100644
--- a/include/net/esp.h
+++ b/include/net/esp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_ESP_H
 #define _NET_ESP_H
 
diff --git a/include/net/fib_rules.h b/include/net/fib_rules.h
index 3d7f1ce..648caf9 100644
--- a/include/net/fib_rules.h
+++ b/include/net/fib_rules.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_FIB_RULES_H
 #define __NET_FIB_RULES_H
 
diff --git a/include/net/firewire.h b/include/net/firewire.h
index 31bcbfe..299e5df 100644
--- a/include/net/firewire.h
+++ b/include/net/firewire.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_FIREWIRE_H
 #define _NET_FIREWIRE_H
 
diff --git a/include/net/flow.h b/include/net/flow.h
index eb60cee3..f1624fd 100644
--- a/include/net/flow.h
+++ b/include/net/flow.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *
  *	Generic internet FLOW.
diff --git a/include/net/flow_dissector.h b/include/net/flow_dissector.h
index fc3dce7..22aba32 100644
--- a/include/net/flow_dissector.h
+++ b/include/net/flow_dissector.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_FLOW_DISSECTOR_H
 #define _NET_FLOW_DISSECTOR_H
 
diff --git a/include/net/fou.h b/include/net/fou.h
index f5cc691..80f56e2 100644
--- a/include/net/fou.h
+++ b/include/net/fou.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_FOU_H
 #define __NET_FOU_H
 
diff --git a/include/net/garp.h b/include/net/garp.h
index abf33bb..c41833b 100644
--- a/include/net/garp.h
+++ b/include/net/garp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_GARP_H
 #define _NET_GARP_H
 
diff --git a/include/net/gen_stats.h b/include/net/gen_stats.h
index 8b7aa37..304f7aa 100644
--- a/include/net/gen_stats.h
+++ b/include/net/gen_stats.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_GEN_STATS_H
 #define __NET_GEN_STATS_H
 
diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index c59a098..5ac169a 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_GENERIC_NETLINK_H
 #define __NET_GENERIC_NETLINK_H
 
diff --git a/include/net/geneve.h b/include/net/geneve.h
index ec0327d..a7600ed 100644
--- a/include/net/geneve.h
+++ b/include/net/geneve.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_GENEVE_H
 #define __NET_GENEVE_H  1
 
diff --git a/include/net/gre.h b/include/net/gre.h
index d25d836..f90585d 100644
--- a/include/net/gre.h
+++ b/include/net/gre.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_GRE_H
 #define __LINUX_GRE_H
 
diff --git a/include/net/gro_cells.h b/include/net/gro_cells.h
index fcaf8f4..596688b 100644
--- a/include/net/gro_cells.h
+++ b/include/net/gro_cells.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_GRO_CELLS_H
 #define _NET_GRO_CELLS_H
 
diff --git a/include/net/gtp.h b/include/net/gtp.h
index 6398891..0e16ebb 100644
--- a/include/net/gtp.h
+++ b/include/net/gtp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _GTP_H_
 #define _GTP_H_
 
diff --git a/include/net/gue.h b/include/net/gue.h
index 3f28ec7..2fdb29c 100644
--- a/include/net/gue.h
+++ b/include/net/gue.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_GUE_H
 #define __NET_GUE_H
 
diff --git a/include/net/hwbm.h b/include/net/hwbm.h
index 47d0866..89085e2 100644
--- a/include/net/hwbm.h
+++ b/include/net/hwbm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _HWBM_H
 #define _HWBM_H
 
diff --git a/include/net/ife.h b/include/net/ife.h
index 2d87d68..44b9c00 100644
--- a/include/net/ife.h
+++ b/include/net/ife.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_IFE_H
 #define __NET_IFE_H
 
diff --git a/include/net/inet_common.h b/include/net/inet_common.h
index f39ae69..5a54c95 100644
--- a/include/net/inet_common.h
+++ b/include/net/inet_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _INET_COMMON_H
 #define _INET_COMMON_H
 
diff --git a/include/net/inet_ecn.h b/include/net/inet_ecn.h
index dce2d58..d30e4c8 100644
--- a/include/net/inet_ecn.h
+++ b/include/net/inet_ecn.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _INET_ECN_H_
 #define _INET_ECN_H_
 
diff --git a/include/net/inet_frag.h b/include/net/inet_frag.h
index fc59e07..a6e4edd 100644
--- a/include/net/inet_frag.h
+++ b/include/net/inet_frag.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_FRAG_H__
 #define __NET_FRAG_H__
 
diff --git a/include/net/inetpeer.h b/include/net/inetpeer.h
index 950ed18..00b5e78 100644
--- a/include/net/inetpeer.h
+++ b/include/net/inetpeer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *		INETPEER - A storage for permanent information about peers
  *
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h
index ee96f40..bee5281 100644
--- a/include/net/ip6_route.h
+++ b/include/net/ip6_route.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_IP6_ROUTE_H
 #define _NET_IP6_ROUTE_H
 
diff --git a/include/net/ip6_tunnel.h b/include/net/ip6_tunnel.h
index 08fbc7f..d66f70f 100644
--- a/include/net/ip6_tunnel.h
+++ b/include/net/ip6_tunnel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_IP6_TUNNEL_H
 #define _NET_IP6_TUNNEL_H
 
diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index 9926528..eb2321a 100644
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_IP_TUNNELS_H
 #define __NET_IP_TUNNELS_H 1
 
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 4f4f786..5d08c19 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* IP Virtual Server
  * data structure and functionality definitions
  */
diff --git a/include/net/ipcomp.h b/include/net/ipcomp.h
index cc4f30c..fee6fc4 100644
--- a/include/net/ipcomp.h
+++ b/include/net/ipcomp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_IPCOMP_H
 #define _NET_IPCOMP_H
 
diff --git a/include/net/ipconfig.h b/include/net/ipconfig.h
index c74cc1b..e353429 100644
--- a/include/net/ipconfig.h
+++ b/include/net/ipconfig.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright (C) 1997 Martin Mares
  *
diff --git a/include/net/ipx.h b/include/net/ipx.h
index af32b97..baf0903 100644
--- a/include/net/ipx.h
+++ b/include/net/ipx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_INET_IPX_H_
 #define _NET_INET_IPX_H_
 /*
diff --git a/include/net/iucv/af_iucv.h b/include/net/iucv/af_iucv.h
index 714cc9a..070e93a 100644
--- a/include/net/iucv/af_iucv.h
+++ b/include/net/iucv/af_iucv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright 2006 IBM Corporation
  * IUCV protocol stack for Linux on zSeries
diff --git a/include/net/iucv/iucv.h b/include/net/iucv/iucv.h
index b867b0c..f9e8840 100644
--- a/include/net/iucv/iucv.h
+++ b/include/net/iucv/iucv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  drivers/s390/net/iucv.h
  *    IUCV base support.
diff --git a/include/net/iw_handler.h b/include/net/iw_handler.h
index 2509728..7252820 100644
--- a/include/net/iw_handler.h
+++ b/include/net/iw_handler.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This file define the new driver API for Wireless Extensions
  *
diff --git a/include/net/lapb.h b/include/net/lapb.h
index 85e7737..ccc3d1f 100644
--- a/include/net/lapb.h
+++ b/include/net/lapb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LAPB_H
 #define _LAPB_H 
 #include <linux/lapb.h>
diff --git a/include/net/lib80211.h b/include/net/lib80211.h
index aab0f42..8b47d3a 100644
--- a/include/net/lib80211.h
+++ b/include/net/lib80211.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * lib80211.h -- common bits for IEEE802.11 wireless drivers
  *
diff --git a/include/net/lwtunnel.h b/include/net/lwtunnel.h
index 7c26863..d747ef9 100644
--- a/include/net/lwtunnel.h
+++ b/include/net/lwtunnel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_LWTUNNEL_H
 #define __NET_LWTUNNEL_H 1
 
diff --git a/include/net/mld.h b/include/net/mld.h
index 01d7513..b0f5b31 100644
--- a/include/net/mld.h
+++ b/include/net/mld.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_MLD_H
 #define LINUX_MLD_H
 
diff --git a/include/net/mrp.h b/include/net/mrp.h
index 31912c3..ef58b4a 100644
--- a/include/net/mrp.h
+++ b/include/net/mrp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_MRP_H
 #define _NET_MRP_H
 
diff --git a/include/net/ncsi.h b/include/net/ncsi.h
index fdc60ff..fbefe80 100644
--- a/include/net/ncsi.h
+++ b/include/net/ncsi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_NCSI_H
 #define __NET_NCSI_H
 
diff --git a/include/net/ndisc.h b/include/net/ndisc.h
index 31b1bb1..ddfbb59 100644
--- a/include/net/ndisc.h
+++ b/include/net/ndisc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NDISC_H
 #define _NDISC_H
 
diff --git a/include/net/neighbour.h b/include/net/neighbour.h
index 9816df2..a964366 100644
--- a/include/net/neighbour.h
+++ b/include/net/neighbour.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_NEIGHBOUR_H
 #define _NET_NEIGHBOUR_H
 
diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
index 57faa37..10f99da 100644
--- a/include/net/net_namespace.h
+++ b/include/net/net_namespace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Operations on the network namespace
  */
diff --git a/include/net/net_ratelimit.h b/include/net/net_ratelimit.h
index 7727b42..93c1bd5 100644
--- a/include/net/net_ratelimit.h
+++ b/include/net/net_ratelimit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_NET_RATELIMIT_H
 #define _LINUX_NET_RATELIMIT_H
 
diff --git a/include/net/netevent.h b/include/net/netevent.h
index f440df1..f728d9c 100644
--- a/include/net/netevent.h
+++ b/include/net/netevent.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_EVENT_H
 #define _NET_EVENT_H
 
diff --git a/include/net/netfilter/br_netfilter.h b/include/net/netfilter/br_netfilter.h
index 925524e..74af19c 100644
--- a/include/net/netfilter/br_netfilter.h
+++ b/include/net/netfilter/br_netfilter.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BR_NETFILTER_H_
 #define _BR_NETFILTER_H_
 
diff --git a/include/net/netfilter/ipv4/nf_conntrack_ipv4.h b/include/net/netfilter/ipv4/nf_conntrack_ipv4.h
index 919e4e8..2cc728e 100644
--- a/include/net/netfilter/ipv4/nf_conntrack_ipv4.h
+++ b/include/net/netfilter/ipv4/nf_conntrack_ipv4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * IPv4 support for nf_conntrack.
  *
diff --git a/include/net/netfilter/ipv4/nf_defrag_ipv4.h b/include/net/netfilter/ipv4/nf_defrag_ipv4.h
index db405f7..bcbd724 100644
--- a/include/net/netfilter/ipv4/nf_defrag_ipv4.h
+++ b/include/net/netfilter/ipv4/nf_defrag_ipv4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_DEFRAG_IPV4_H
 #define _NF_DEFRAG_IPV4_H
 
diff --git a/include/net/netfilter/ipv4/nf_dup_ipv4.h b/include/net/netfilter/ipv4/nf_dup_ipv4.h
index 0a14733..c962e0b 100644
--- a/include/net/netfilter/ipv4/nf_dup_ipv4.h
+++ b/include/net/netfilter/ipv4/nf_dup_ipv4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_DUP_IPV4_H_
 #define _NF_DUP_IPV4_H_
 
diff --git a/include/net/netfilter/ipv4/nf_nat_masquerade.h b/include/net/netfilter/ipv4/nf_nat_masquerade.h
index a9c001c..ebd8694 100644
--- a/include/net/netfilter/ipv4/nf_nat_masquerade.h
+++ b/include/net/netfilter/ipv4/nf_nat_masquerade.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_NAT_MASQUERADE_IPV4_H_
 #define _NF_NAT_MASQUERADE_IPV4_H_
 
diff --git a/include/net/netfilter/ipv4/nf_reject.h b/include/net/netfilter/ipv4/nf_reject.h
index df7ecd8..2eb43fc 100644
--- a/include/net/netfilter/ipv4/nf_reject.h
+++ b/include/net/netfilter/ipv4/nf_reject.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IPV4_NF_REJECT_H
 #define _IPV4_NF_REJECT_H
 
diff --git a/include/net/netfilter/ipv6/nf_conntrack_icmpv6.h b/include/net/netfilter/ipv6/nf_conntrack_icmpv6.h
index 67edd50..c86895b 100644
--- a/include/net/netfilter/ipv6/nf_conntrack_icmpv6.h
+++ b/include/net/netfilter/ipv6/nf_conntrack_icmpv6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ICMPv6 tracking.
  *
diff --git a/include/net/netfilter/ipv6/nf_conntrack_ipv6.h b/include/net/netfilter/ipv6/nf_conntrack_ipv6.h
index eaea968..79a335c 100644
--- a/include/net/netfilter/ipv6/nf_conntrack_ipv6.h
+++ b/include/net/netfilter/ipv6/nf_conntrack_ipv6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_IPV6_H
 #define _NF_CONNTRACK_IPV6_H
 
diff --git a/include/net/netfilter/ipv6/nf_defrag_ipv6.h b/include/net/netfilter/ipv6/nf_defrag_ipv6.h
index 7664efe..9d7e287 100644
--- a/include/net/netfilter/ipv6/nf_defrag_ipv6.h
+++ b/include/net/netfilter/ipv6/nf_defrag_ipv6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_DEFRAG_IPV6_H
 #define _NF_DEFRAG_IPV6_H
 
diff --git a/include/net/netfilter/ipv6/nf_dup_ipv6.h b/include/net/netfilter/ipv6/nf_dup_ipv6.h
index fa6237b..caf0c2d 100644
--- a/include/net/netfilter/ipv6/nf_dup_ipv6.h
+++ b/include/net/netfilter/ipv6/nf_dup_ipv6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_DUP_IPV6_H_
 #define _NF_DUP_IPV6_H_
 
diff --git a/include/net/netfilter/ipv6/nf_nat_masquerade.h b/include/net/netfilter/ipv6/nf_nat_masquerade.h
index 0a13396..1ed4f26 100644
--- a/include/net/netfilter/ipv6/nf_nat_masquerade.h
+++ b/include/net/netfilter/ipv6/nf_nat_masquerade.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_NAT_MASQUERADE_IPV6_H_
 #define _NF_NAT_MASQUERADE_IPV6_H_
 
diff --git a/include/net/netfilter/ipv6/nf_reject.h b/include/net/netfilter/ipv6/nf_reject.h
index 0ea4fa3..3a5a9a3 100644
--- a/include/net/netfilter/ipv6/nf_reject.h
+++ b/include/net/netfilter/ipv6/nf_reject.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IPV6_NF_REJECT_H
 #define _IPV6_NF_REJECT_H
 
diff --git a/include/net/netfilter/nf_conntrack.h b/include/net/netfilter/nf_conntrack.h
index 8f3bd30..792c3f6 100644
--- a/include/net/netfilter/nf_conntrack.h
+++ b/include/net/netfilter/nf_conntrack.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Connection state tracking for netfilter.  This is separated from,
  * but required by, the (future) NAT layer; it can also be used by an iptables
diff --git a/include/net/netfilter/nf_conntrack_core.h b/include/net/netfilter/nf_conntrack_core.h
index 81d7f8a..9b5e763 100644
--- a/include/net/netfilter/nf_conntrack_core.h
+++ b/include/net/netfilter/nf_conntrack_core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header is used to share core functionality between the
  * standalone connection tracking module, and the compatibility layer's use
diff --git a/include/net/netfilter/nf_conntrack_ecache.h b/include/net/netfilter/nf_conntrack_ecache.h
index 2a10c65..3f1ce9a 100644
--- a/include/net/netfilter/nf_conntrack_ecache.h
+++ b/include/net/netfilter/nf_conntrack_ecache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * connection tracking event cache.
  */
diff --git a/include/net/netfilter/nf_conntrack_expect.h b/include/net/netfilter/nf_conntrack_expect.h
index 818def0..006e430 100644
--- a/include/net/netfilter/nf_conntrack_expect.h
+++ b/include/net/netfilter/nf_conntrack_expect.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * connection tracking expectations.
  */
diff --git a/include/net/netfilter/nf_conntrack_extend.h b/include/net/netfilter/nf_conntrack_extend.h
index 4944bc9..21f887c 100644
--- a/include/net/netfilter/nf_conntrack_extend.h
+++ b/include/net/netfilter/nf_conntrack_extend.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_EXTEND_H
 #define _NF_CONNTRACK_EXTEND_H
 
diff --git a/include/net/netfilter/nf_conntrack_helper.h b/include/net/netfilter/nf_conntrack_helper.h
index c519bb5..fc39bba 100644
--- a/include/net/netfilter/nf_conntrack_helper.h
+++ b/include/net/netfilter/nf_conntrack_helper.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * connection tracking helpers.
  *
diff --git a/include/net/netfilter/nf_conntrack_l3proto.h b/include/net/netfilter/nf_conntrack_l3proto.h
index 6269dee..d5808f3 100644
--- a/include/net/netfilter/nf_conntrack_l3proto.h
+++ b/include/net/netfilter/nf_conntrack_l3proto.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C)2003,2004 USAGI/WIDE Project
  *
diff --git a/include/net/netfilter/nf_conntrack_l4proto.h b/include/net/netfilter/nf_conntrack_l4proto.h
index 738a030..510192e 100644
--- a/include/net/netfilter/nf_conntrack_l4proto.h
+++ b/include/net/netfilter/nf_conntrack_l4proto.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Header for use in defining a given L4 protocol for connection tracking.
  *
diff --git a/include/net/netfilter/nf_conntrack_labels.h b/include/net/netfilter/nf_conntrack_labels.h
index 1723a67..4eacce6 100644
--- a/include/net/netfilter/nf_conntrack_labels.h
+++ b/include/net/netfilter/nf_conntrack_labels.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/types.h>
 #include <net/net_namespace.h>
 #include <linux/netfilter/nf_conntrack_common.h>
diff --git a/include/net/netfilter/nf_conntrack_seqadj.h b/include/net/netfilter/nf_conntrack_seqadj.h
index 4b33629..0a10b50 100644
--- a/include/net/netfilter/nf_conntrack_seqadj.h
+++ b/include/net/netfilter/nf_conntrack_seqadj.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_SEQADJ_H
 #define _NF_CONNTRACK_SEQADJ_H
 
diff --git a/include/net/netfilter/nf_conntrack_synproxy.h b/include/net/netfilter/nf_conntrack_synproxy.h
index a2fcb52..2c7559a 100644
--- a/include/net/netfilter/nf_conntrack_synproxy.h
+++ b/include/net/netfilter/nf_conntrack_synproxy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_SYNPROXY_H
 #define _NF_CONNTRACK_SYNPROXY_H
 
diff --git a/include/net/netfilter/nf_conntrack_timeout.h b/include/net/netfilter/nf_conntrack_timeout.h
index 483d104..9468ab4 100644
--- a/include/net/netfilter/nf_conntrack_timeout.h
+++ b/include/net/netfilter/nf_conntrack_timeout.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_TIMEOUT_H
 #define _NF_CONNTRACK_TIMEOUT_H
 
diff --git a/include/net/netfilter/nf_conntrack_timestamp.h b/include/net/netfilter/nf_conntrack_timestamp.h
index 300ae22..3b661986 100644
--- a/include/net/netfilter/nf_conntrack_timestamp.h
+++ b/include/net/netfilter/nf_conntrack_timestamp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_TSTAMP_H
 #define _NF_CONNTRACK_TSTAMP_H
 
diff --git a/include/net/netfilter/nf_conntrack_tuple.h b/include/net/netfilter/nf_conntrack_tuple.h
index aea3f82..bf0444e 100644
--- a/include/net/netfilter/nf_conntrack_tuple.h
+++ b/include/net/netfilter/nf_conntrack_tuple.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Definitions and Declarations for tuple.
  *
diff --git a/include/net/netfilter/nf_conntrack_zones.h b/include/net/netfilter/nf_conntrack_zones.h
index 64a718b..52950ba 100644
--- a/include/net/netfilter/nf_conntrack_zones.h
+++ b/include/net/netfilter/nf_conntrack_zones.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_ZONES_H
 #define _NF_CONNTRACK_ZONES_H
 
diff --git a/include/net/netfilter/nf_dup_netdev.h b/include/net/netfilter/nf_dup_netdev.h
index 3e91935..2a6f6dc 100644
--- a/include/net/netfilter/nf_dup_netdev.h
+++ b/include/net/netfilter/nf_dup_netdev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_DUP_NETDEV_H_
 #define _NF_DUP_NETDEV_H_
 
diff --git a/include/net/netfilter/nf_log.h b/include/net/netfilter/nf_log.h
index 42e0696..e811ac0 100644
--- a/include/net/netfilter/nf_log.h
+++ b/include/net/netfilter/nf_log.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_LOG_H
 #define _NF_LOG_H
 
diff --git a/include/net/netfilter/nf_nat.h b/include/net/netfilter/nf_nat.h
index b717013..207a467 100644
--- a/include/net/netfilter/nf_nat.h
+++ b/include/net/netfilter/nf_nat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_NAT_H
 #define _NF_NAT_H
 #include <linux/netfilter_ipv4.h>
diff --git a/include/net/netfilter/nf_nat_core.h b/include/net/netfilter/nf_nat_core.h
index 186c541..235bd0e 100644
--- a/include/net/netfilter/nf_nat_core.h
+++ b/include/net/netfilter/nf_nat_core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_NAT_CORE_H
 #define _NF_NAT_CORE_H
 #include <linux/list.h>
diff --git a/include/net/netfilter/nf_nat_helper.h b/include/net/netfilter/nf_nat_helper.h
index fbfa5ac..97d7033 100644
--- a/include/net/netfilter/nf_nat_helper.h
+++ b/include/net/netfilter/nf_nat_helper.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_NAT_HELPER_H
 #define _NF_NAT_HELPER_H
 /* NAT protocol helper routines. */
diff --git a/include/net/netfilter/nf_nat_l3proto.h b/include/net/netfilter/nf_nat_l3proto.h
index aef3e5f..ce7c2b4 100644
--- a/include/net/netfilter/nf_nat_l3proto.h
+++ b/include/net/netfilter/nf_nat_l3proto.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_NAT_L3PROTO_H
 #define _NF_NAT_L3PROTO_H
 
diff --git a/include/net/netfilter/nf_nat_l4proto.h b/include/net/netfilter/nf_nat_l4proto.h
index 3923150..67835ff 100644
--- a/include/net/netfilter/nf_nat_l4proto.h
+++ b/include/net/netfilter/nf_nat_l4proto.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Header for use in defining a given protocol. */
 #ifndef _NF_NAT_L4PROTO_H
 #define _NF_NAT_L4PROTO_H
diff --git a/include/net/netfilter/nf_nat_redirect.h b/include/net/netfilter/nf_nat_redirect.h
index 73b7295..5ddabb0 100644
--- a/include/net/netfilter/nf_nat_redirect.h
+++ b/include/net/netfilter/nf_nat_redirect.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_NAT_REDIRECT_H_
 #define _NF_NAT_REDIRECT_H_
 
diff --git a/include/net/netfilter/nf_queue.h b/include/net/netfilter/nf_queue.h
index 3946872..814058d 100644
--- a/include/net/netfilter/nf_queue.h
+++ b/include/net/netfilter/nf_queue.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_QUEUE_H
 #define _NF_QUEUE_H
 
diff --git a/include/net/netfilter/nf_socket.h b/include/net/netfilter/nf_socket.h
index f2fc39c..8230fef 100644
--- a/include/net/netfilter/nf_socket.h
+++ b/include/net/netfilter/nf_socket.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_SOCK_H_
 #define _NF_SOCK_H_
 
diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index 0f5b12a..079c69c 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_NF_TABLES_H
 #define _NET_NF_TABLES_H
 
diff --git a/include/net/netfilter/nf_tables_core.h b/include/net/netfilter/nf_tables_core.h
index 424684c..ea5aab5 100644
--- a/include/net/netfilter/nf_tables_core.h
+++ b/include/net/netfilter/nf_tables_core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_NF_TABLES_CORE_H
 #define _NET_NF_TABLES_CORE_H
 
diff --git a/include/net/netfilter/nf_tables_ipv4.h b/include/net/netfilter/nf_tables_ipv4.h
index 25e33ae..f0896ba 100644
--- a/include/net/netfilter/nf_tables_ipv4.h
+++ b/include/net/netfilter/nf_tables_ipv4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_TABLES_IPV4_H_
 #define _NF_TABLES_IPV4_H_
 
diff --git a/include/net/netfilter/nf_tables_ipv6.h b/include/net/netfilter/nf_tables_ipv6.h
index 97983d1..b8065b7 100644
--- a/include/net/netfilter/nf_tables_ipv6.h
+++ b/include/net/netfilter/nf_tables_ipv6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_TABLES_IPV6_H_
 #define _NF_TABLES_IPV6_H_
 
diff --git a/include/net/netfilter/nfnetlink_log.h b/include/net/netfilter/nfnetlink_log.h
index 5ca3f14..612cfb6 100644
--- a/include/net/netfilter/nfnetlink_log.h
+++ b/include/net/netfilter/nfnetlink_log.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _KER_NFNETLINK_LOG_H
 #define _KER_NFNETLINK_LOG_H
 
diff --git a/include/net/netfilter/nft_dup.h b/include/net/netfilter/nft_dup.h
index 6b84cf6..4d9d512 100644
--- a/include/net/netfilter/nft_dup.h
+++ b/include/net/netfilter/nft_dup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NFT_DUP_H_
 #define _NFT_DUP_H_
 
diff --git a/include/net/netfilter/nft_fib.h b/include/net/netfilter/nft_fib.h
index 381af94..a88f927 100644
--- a/include/net/netfilter/nft_fib.h
+++ b/include/net/netfilter/nft_fib.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NFT_FIB_H_
 #define _NFT_FIB_H_
 
diff --git a/include/net/netfilter/nft_masq.h b/include/net/netfilter/nft_masq.h
index a3f3c11..e51ab38 100644
--- a/include/net/netfilter/nft_masq.h
+++ b/include/net/netfilter/nft_masq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NFT_MASQ_H_
 #define _NFT_MASQ_H_
 
diff --git a/include/net/netfilter/nft_meta.h b/include/net/netfilter/nft_meta.h
index 1139cde..5c69e9b 100644
--- a/include/net/netfilter/nft_meta.h
+++ b/include/net/netfilter/nft_meta.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NFT_META_H_
 #define _NFT_META_H_
 
diff --git a/include/net/netfilter/nft_redir.h b/include/net/netfilter/nft_redir.h
index a2d6754..4a97073 100644
--- a/include/net/netfilter/nft_redir.h
+++ b/include/net/netfilter/nft_redir.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NFT_REDIR_H_
 #define _NFT_REDIR_H_
 
diff --git a/include/net/netfilter/nft_reject.h b/include/net/netfilter/nft_reject.h
index 02e28c5..de80c50 100644
--- a/include/net/netfilter/nft_reject.h
+++ b/include/net/netfilter/nft_reject.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NFT_REJECT_H_
 #define _NFT_REJECT_H_
 
diff --git a/include/net/netfilter/xt_rateest.h b/include/net/netfilter/xt_rateest.h
index 130e583..b1db137 100644
--- a/include/net/netfilter/xt_rateest.h
+++ b/include/net/netfilter/xt_rateest.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _XT_RATEEST_H
 #define _XT_RATEEST_H
 
diff --git a/include/net/netlink.h b/include/net/netlink.h
index 14c2893..0c154f9 100644
--- a/include/net/netlink.h
+++ b/include/net/netlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_NETLINK_H
 #define __NET_NETLINK_H
 
diff --git a/include/net/netns/can.h b/include/net/netns/can.h
index b106e6a..ecf238b 100644
--- a/include/net/netns/can.h
+++ b/include/net/netns/can.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * can in net namespaces
  */
diff --git a/include/net/netns/conntrack.h b/include/net/netns/conntrack.h
index 17724c6..9795d62 100644
--- a/include/net/netns/conntrack.h
+++ b/include/net/netns/conntrack.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NETNS_CONNTRACK_H
 #define __NETNS_CONNTRACK_H
 
diff --git a/include/net/netns/core.h b/include/net/netns/core.h
index 78eb1ff..0ad4d0c 100644
--- a/include/net/netns/core.h
+++ b/include/net/netns/core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NETNS_CORE_H__
 #define __NETNS_CORE_H__
 
diff --git a/include/net/netns/dccp.h b/include/net/netns/dccp.h
index 98d2a7c..cdbc4f5 100644
--- a/include/net/netns/dccp.h
+++ b/include/net/netns/dccp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NETNS_DCCP_H__
 #define __NETNS_DCCP_H__
 
diff --git a/include/net/netns/generic.h b/include/net/netns/generic.h
index f15daaa..8a1ab47 100644
--- a/include/net/netns/generic.h
+++ b/include/net/netns/generic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * generic net pointers
  */
diff --git a/include/net/netns/hash.h b/include/net/netns/hash.h
index 69a6715..24c7818 100644
--- a/include/net/netns/hash.h
+++ b/include/net/netns/hash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_NS_HASH_H__
 #define __NET_NS_HASH_H__
 
diff --git a/include/net/netns/ieee802154_6lowpan.h b/include/net/netns/ieee802154_6lowpan.h
index 8170f8d..736aeac 100644
--- a/include/net/netns/ieee802154_6lowpan.h
+++ b/include/net/netns/ieee802154_6lowpan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ieee802154 6lowpan in net namespaces
  */
diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index 20d061c..8fcff28 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ipv4 in net namespaces
  */
diff --git a/include/net/netns/ipv6.h b/include/net/netns/ipv6.h
index 2544f97..dc825a5 100644
--- a/include/net/netns/ipv6.h
+++ b/include/net/netns/ipv6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ipv6 in net namespaces
  */
diff --git a/include/net/netns/mib.h b/include/net/netns/mib.h
index d542a4b..830bdf3 100644
--- a/include/net/netns/mib.h
+++ b/include/net/netns/mib.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NETNS_MIB_H__
 #define __NETNS_MIB_H__
 
diff --git a/include/net/netns/mpls.h b/include/net/netns/mpls.h
index 6608b36..a7bdcfb 100644
--- a/include/net/netns/mpls.h
+++ b/include/net/netns/mpls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * mpls in net namespaces
  */
diff --git a/include/net/netns/netfilter.h b/include/net/netns/netfilter.h
index 72d66c8..cc00af2 100644
--- a/include/net/netns/netfilter.h
+++ b/include/net/netns/netfilter.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NETNS_NETFILTER_H
 #define __NETNS_NETFILTER_H
 
diff --git a/include/net/netns/nftables.h b/include/net/netns/nftables.h
index c807811..4109b5f 100644
--- a/include/net/netns/nftables.h
+++ b/include/net/netns/nftables.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NETNS_NFTABLES_H_
 #define _NETNS_NFTABLES_H_
 
diff --git a/include/net/netns/packet.h b/include/net/netns/packet.h
index 17ec2b9..aae69bb 100644
--- a/include/net/netns/packet.h
+++ b/include/net/netns/packet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Packet network namespace
  */
diff --git a/include/net/netns/sctp.h b/include/net/netns/sctp.h
index b7871d0..ebc8132 100644
--- a/include/net/netns/sctp.h
+++ b/include/net/netns/sctp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NETNS_SCTP_H__
 #define __NETNS_SCTP_H__
 
diff --git a/include/net/netns/unix.h b/include/net/netns/unix.h
index 284649d..91a3d7e 100644
--- a/include/net/netns/unix.h
+++ b/include/net/netns/unix.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Unix network namespace
  */
diff --git a/include/net/netns/x_tables.h b/include/net/netns/x_tables.h
index c8a7681..9bc5a12 100644
--- a/include/net/netns/x_tables.h
+++ b/include/net/netns/x_tables.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NETNS_X_TABLES_H
 #define __NETNS_X_TABLES_H
 
diff --git a/include/net/netns/xfrm.h b/include/net/netns/xfrm.h
index 6115216..9991e5ef 100644
--- a/include/net/netns/xfrm.h
+++ b/include/net/netns/xfrm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NETNS_XFRM_H
 #define __NETNS_XFRM_H
 
diff --git a/include/net/netrom.h b/include/net/netrom.h
index 443a4ff..0dad2dd 100644
--- a/include/net/netrom.h
+++ b/include/net/netrom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Declarations of NET/ROM type objects.
  *
diff --git a/include/net/nexthop.h b/include/net/nexthop.h
index 3334dbf..36bb794 100644
--- a/include/net/nexthop.h
+++ b/include/net/nexthop.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_NEXTHOP_H
 #define __NET_NEXTHOP_H
 
diff --git a/include/net/p8022.h b/include/net/p8022.h
index 05e4138..c2bacc6 100644
--- a/include/net/p8022.h
+++ b/include/net/p8022.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_P8022_H
 #define _NET_P8022_H
 struct datalink_proto *
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index e80edd8..13b23f3 100644
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_PKT_CLS_H
 #define __NET_PKT_CLS_H
 
diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h
index 259bc19..b3869f9 100644
--- a/include/net/pkt_sched.h
+++ b/include/net/pkt_sched.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_PKT_SCHED_H
 #define __NET_PKT_SCHED_H
 
diff --git a/include/net/pptp.h b/include/net/pptp.h
index 92e9f1f..383e25c 100644
--- a/include/net/pptp.h
+++ b/include/net/pptp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_PPTP_H
 #define _NET_PPTP_H
 
diff --git a/include/net/psample.h b/include/net/psample.h
index 8888b0e..9b80f81 100644
--- a/include/net/psample.h
+++ b/include/net/psample.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_PSAMPLE_H
 #define __NET_PSAMPLE_H
 
diff --git a/include/net/psnap.h b/include/net/psnap.h
index 78db4cc..7cb0c8a 100644
--- a/include/net/psnap.h
+++ b/include/net/psnap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_PSNAP_H
 #define _NET_PSNAP_H
 
diff --git a/include/net/rawv6.h b/include/net/rawv6.h
index 4addc5c..53d86b6 100644
--- a/include/net/rawv6.h
+++ b/include/net/rawv6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_RAWV6_H
 #define _NET_RAWV6_H
 
diff --git a/include/net/red.h b/include/net/red.h
index 208e718..9a93477 100644
--- a/include/net/red.h
+++ b/include/net/red.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_SCHED_RED_H
 #define __NET_SCHED_RED_H
 
diff --git a/include/net/rose.h b/include/net/rose.h
index 50811fe..04b7268 100644
--- a/include/net/rose.h
+++ b/include/net/rose.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Declarations of Rose type objects.
  *
diff --git a/include/net/rtnetlink.h b/include/net/rtnetlink.h
index 21837ca..7b938fb 100644
--- a/include/net/rtnetlink.h
+++ b/include/net/rtnetlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_RTNETLINK_H
 #define __NET_RTNETLINK_H
 
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index 135f5a2..1b33a6c 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_SCHED_GENERIC_H
 #define __NET_SCHED_GENERIC_H
 
diff --git a/include/net/scm.h b/include/net/scm.h
index 142ea9e..903771c 100644
--- a/include/net/scm.h
+++ b/include/net/scm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_NET_SCM_H
 #define __LINUX_NET_SCM_H
 
diff --git a/include/net/secure_seq.h b/include/net/secure_seq.h
index 031bf16..d7d2495f 100644
--- a/include/net/secure_seq.h
+++ b/include/net/secure_seq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_SECURE_SEQ
 #define _NET_SECURE_SEQ
 
diff --git a/include/net/smc.h b/include/net/smc.h
index 12d2635..8381d16 100644
--- a/include/net/smc.h
+++ b/include/net/smc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Shared Memory Communications over RDMA (SMC-R) and RoCE
  *
diff --git a/include/net/sock_reuseport.h b/include/net/sock_reuseport.h
index aecd303..0054b3a 100644
--- a/include/net/sock_reuseport.h
+++ b/include/net/sock_reuseport.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SOCK_REUSEPORT_H
 #define _SOCK_REUSEPORT_H
 
diff --git a/include/net/stp.h b/include/net/stp.h
index 3af174d..2914e6d 100644
--- a/include/net/stp.h
+++ b/include/net/stp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_STP_H
 #define _NET_STP_H
 
diff --git a/include/net/tc_act/tc_connmark.h b/include/net/tc_act/tc_connmark.h
index 59b515d..1f4cb47 100644
--- a/include/net/tc_act/tc_connmark.h
+++ b/include/net/tc_act/tc_connmark.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_TC_CONNMARK_H
 #define __NET_TC_CONNMARK_H
 
diff --git a/include/net/tc_act/tc_csum.h b/include/net/tc_act/tc_csum.h
index 3248bea..781f343 100644
--- a/include/net/tc_act/tc_csum.h
+++ b/include/net/tc_act/tc_csum.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_TC_CSUM_H
 #define __NET_TC_CSUM_H
 
diff --git a/include/net/tc_act/tc_defact.h b/include/net/tc_act/tc_defact.h
index d47f040..d7ba040 100644
--- a/include/net/tc_act/tc_defact.h
+++ b/include/net/tc_act/tc_defact.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_TC_DEF_H
 #define __NET_TC_DEF_H
 
diff --git a/include/net/tc_act/tc_gact.h b/include/net/tc_act/tc_gact.h
index 41afe1c..e82d933 100644
--- a/include/net/tc_act/tc_gact.h
+++ b/include/net/tc_act/tc_gact.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_TC_GACT_H
 #define __NET_TC_GACT_H
 
diff --git a/include/net/tc_act/tc_ife.h b/include/net/tc_act/tc_ife.h
index 30ba459..ba66671 100644
--- a/include/net/tc_act/tc_ife.h
+++ b/include/net/tc_act/tc_ife.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_TC_IFE_H
 #define __NET_TC_IFE_H
 
diff --git a/include/net/tc_act/tc_ipt.h b/include/net/tc_act/tc_ipt.h
index 3130976..4225fcb 100644
--- a/include/net/tc_act/tc_ipt.h
+++ b/include/net/tc_act/tc_ipt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_TC_IPT_H
 #define __NET_TC_IPT_H
 
diff --git a/include/net/tc_act/tc_mirred.h b/include/net/tc_act/tc_mirred.h
index 604bc31..b2dbbfa 100644
--- a/include/net/tc_act/tc_mirred.h
+++ b/include/net/tc_act/tc_mirred.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_TC_MIR_H
 #define __NET_TC_MIR_H
 
diff --git a/include/net/tc_act/tc_nat.h b/include/net/tc_act/tc_nat.h
index 56681a3..c144071 100644
--- a/include/net/tc_act/tc_nat.h
+++ b/include/net/tc_act/tc_nat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_TC_NAT_H
 #define __NET_TC_NAT_H
 
diff --git a/include/net/tc_act/tc_pedit.h b/include/net/tc_act/tc_pedit.h
index a46c3f2..227a6f1 100644
--- a/include/net/tc_act/tc_pedit.h
+++ b/include/net/tc_act/tc_pedit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_TC_PED_H
 #define __NET_TC_PED_H
 
diff --git a/include/net/tc_act/tc_sample.h b/include/net/tc_act/tc_sample.h
index 89e9305..524cee4 100644
--- a/include/net/tc_act/tc_sample.h
+++ b/include/net/tc_act/tc_sample.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_TC_SAMPLE_H
 #define __NET_TC_SAMPLE_H
 
diff --git a/include/net/transp_v6.h b/include/net/transp_v6.h
index 276f976..c4f5caa 100644
--- a/include/net/transp_v6.h
+++ b/include/net/transp_v6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TRANSP_V6_H
 #define _TRANSP_V6_H
 
diff --git a/include/net/tso.h b/include/net/tso.h
index 9a56c39..7e166a5 100644
--- a/include/net/tso.h
+++ b/include/net/tso.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TSO_H
 #define _TSO_H
 
diff --git a/include/net/udp_tunnel.h b/include/net/udp_tunnel.h
index 10cce0d..b95a6927 100644
--- a/include/net/udp_tunnel.h
+++ b/include/net/udp_tunnel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_UDP_TUNNEL_H
 #define __NET_UDP_TUNNEL_H
 
diff --git a/include/net/udplite.h b/include/net/udplite.h
index b7a18f6..81bdbf9 100644
--- a/include/net/udplite.h
+++ b/include/net/udplite.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Definitions for the UDP-Lite (RFC 3828) code.
  */
diff --git a/include/net/vxlan.h b/include/net/vxlan.h
index 4e3876d..1322339 100644
--- a/include/net/vxlan.h
+++ b/include/net/vxlan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_VXLAN_H
 #define __NET_VXLAN_H 1
 
diff --git a/include/net/wext.h b/include/net/wext.h
index 454ff76..e51f067 100644
--- a/include/net/wext.h
+++ b/include/net/wext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_WEXT_H
 #define __NET_WEXT_H
 
diff --git a/include/net/x25.h b/include/net/x25.h
index 2609b57..ed1acc3 100644
--- a/include/net/x25.h
+++ b/include/net/x25.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Declarations of X.25 Packet Layer type objects.
  *
diff --git a/include/net/x25device.h b/include/net/x25device.h
index 1fa08b4..cf749ef 100644
--- a/include/net/x25device.h
+++ b/include/net/x25device.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _X25DEVICE_H
 #define _X25DEVICE_H
 
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index f002a2c..e015e16 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_XFRM_H
 #define _NET_XFRM_H
 
diff --git a/include/ras/ras_event.h b/include/ras/ras_event.h
index 429f46f..9c68986 100644
--- a/include/ras/ras_event.h
+++ b/include/ras/ras_event.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM ras
 #define TRACE_INCLUDE_FILE ras_event
diff --git a/include/rdma/rdma_netlink.h b/include/rdma/rdma_netlink.h
index 2d87859..c369703 100644
--- a/include/rdma/rdma_netlink.h
+++ b/include/rdma/rdma_netlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _RDMA_NETLINK_H
 #define _RDMA_NETLINK_H
 
diff --git a/include/scsi/osd_attributes.h b/include/scsi/osd_attributes.h
index 303ba11..8a6acd0 100644
--- a/include/scsi/osd_attributes.h
+++ b/include/scsi/osd_attributes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __OSD_ATTRIBUTES_H__
 #define __OSD_ATTRIBUTES_H__
 
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
index a1e1930..cb85edd 100644
--- a/include/scsi/scsi.h
+++ b/include/scsi/scsi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header file contains public constants and structures used by
  * the SCSI initiator code.
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index 3d3f8b3..7fb57e9 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SCSI_SCSI_CMND_H
 #define _SCSI_SCSI_CMND_H
 
diff --git a/include/scsi/scsi_common.h b/include/scsi/scsi_common.h
index 20bf7ea..731ac09 100644
--- a/include/scsi/scsi_common.h
+++ b/include/scsi/scsi_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Functions used by both the SCSI initiator code and the SCSI target code.
  */
diff --git a/include/scsi/scsi_dbg.h b/include/scsi/scsi_dbg.h
index 56710e0..04e0679 100644
--- a/include/scsi/scsi_dbg.h
+++ b/include/scsi/scsi_dbg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SCSI_SCSI_DBG_H
 #define _SCSI_SCSI_DBG_H
 
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 67c5a9f..571ddb4 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SCSI_SCSI_DEVICE_H
 #define _SCSI_SCSI_DEVICE_H
 
diff --git a/include/scsi/scsi_devinfo.h b/include/scsi/scsi_devinfo.h
index 36b0301..3575693 100644
--- a/include/scsi/scsi_devinfo.h
+++ b/include/scsi/scsi_devinfo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SCSI_SCSI_DEVINFO_H
 #define _SCSI_SCSI_DEVINFO_H
 /*
diff --git a/include/scsi/scsi_driver.h b/include/scsi/scsi_driver.h
index a5534cc..fae8b46 100644
--- a/include/scsi/scsi_driver.h
+++ b/include/scsi/scsi_driver.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SCSI_SCSI_DRIVER_H
 #define _SCSI_SCSI_DRIVER_H
 
diff --git a/include/scsi/scsi_eh.h b/include/scsi/scsi_eh.h
index 64d30d8..2b7e227 100644
--- a/include/scsi/scsi_eh.h
+++ b/include/scsi/scsi_eh.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SCSI_SCSI_EH_H
 #define _SCSI_SCSI_EH_H
 
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index 0a804b1..a8b7bf8 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SCSI_SCSI_HOST_H
 #define _SCSI_SCSI_HOST_H
 
diff --git a/include/scsi/scsi_ioctl.h b/include/scsi/scsi_ioctl.h
index 8d19d1d..5101e98 100644
--- a/include/scsi/scsi_ioctl.h
+++ b/include/scsi/scsi_ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SCSI_IOCTL_H
 #define _SCSI_IOCTL_H 
 
diff --git a/include/scsi/scsi_proto.h b/include/scsi/scsi_proto.h
index 8c285d9..1c41dbc 100644
--- a/include/scsi/scsi_proto.h
+++ b/include/scsi/scsi_proto.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header file contains public constants and structures used by
  * both the SCSI initiator and the SCSI target code.
diff --git a/include/scsi/scsi_request.h b/include/scsi/scsi_request.h
index e0afa44..b06f28c 100644
--- a/include/scsi/scsi_request.h
+++ b/include/scsi/scsi_request.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SCSI_SCSI_REQUEST_H
 #define _SCSI_SCSI_REQUEST_H
 
diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h
index 5b416de..e192a0c 100644
--- a/include/scsi/scsi_tcq.h
+++ b/include/scsi/scsi_tcq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SCSI_SCSI_TCQ_H
 #define _SCSI_SCSI_TCQ_H
 
diff --git a/include/scsi/scsi_transport_sas.h b/include/scsi/scsi_transport_sas.h
index a23304b..62895b4 100644
--- a/include/scsi/scsi_transport_sas.h
+++ b/include/scsi/scsi_transport_sas.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef SCSI_TRANSPORT_SAS_H
 #define SCSI_TRANSPORT_SAS_H
 
diff --git a/include/scsi/scsi_transport_srp.h b/include/scsi/scsi_transport_srp.h
index 56ae198..d22df125 100644
--- a/include/scsi/scsi_transport_srp.h
+++ b/include/scsi/scsi_transport_srp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef SCSI_TRANSPORT_SRP_H
 #define SCSI_TRANSPORT_SRP_H
 
diff --git a/include/scsi/scsicam.h b/include/scsi/scsicam.h
index 24ede47..57c7292 100644
--- a/include/scsi/scsicam.h
+++ b/include/scsi/scsicam.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * scsicam.h - SCSI CAM support functions, use for HDIO_GETGEO, etc.
  *
diff --git a/include/scsi/sg.h b/include/scsi/sg.h
index 20bc71c..f91bcca 100644
--- a/include/scsi/sg.h
+++ b/include/scsi/sg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SCSI_GENERIC_H
 #define _SCSI_GENERIC_H
 
diff --git a/include/sound/aci.h b/include/sound/aci.h
index ee639d3..6ebbd42 100644
--- a/include/sound/aci.h
+++ b/include/sound/aci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ACI_H_
 #define _ACI_H_
 
diff --git a/include/sound/alc5623.h b/include/sound/alc5623.h
index 422c97d..0ebb0f6 100644
--- a/include/sound/alc5623.h
+++ b/include/sound/alc5623.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _INCLUDE_SOUND_ALC5623_H
 #define _INCLUDE_SOUND_ALC5623_H
 struct alc5623_platform_data {
diff --git a/include/sound/hda_chmap.h b/include/sound/hda_chmap.h
index babd445..e508f31 100644
--- a/include/sound/hda_chmap.h
+++ b/include/sound/hda_chmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * For multichannel support
  */
diff --git a/include/sound/hda_i915.h b/include/sound/hda_i915.h
index 5ab972e..a94f5b6 100644
--- a/include/sound/hda_i915.h
+++ b/include/sound/hda_i915.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * HD-Audio helpers to sync with i915 driver
  */
diff --git a/include/sound/hda_register.h b/include/sound/hda_register.h
index 15fc6da..2ab39fb 100644
--- a/include/sound/hda_register.h
+++ b/include/sound/hda_register.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * HD-audio controller (Azalia) registers and helpers
  *
diff --git a/include/sound/hda_regmap.h b/include/sound/hda_regmap.h
index ca64f0f..5141f8f 100644
--- a/include/sound/hda_regmap.h
+++ b/include/sound/hda_regmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * HD-audio regmap helpers
  */
diff --git a/include/sound/hda_verbs.h b/include/sound/hda_verbs.h
index f89cd5e..2a8573a 100644
--- a/include/sound/hda_verbs.h
+++ b/include/sound/hda_verbs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * HD-audio codec verbs
  */
diff --git a/include/sound/hdaudio.h b/include/sound/hdaudio.h
index 96546b3..d8afd8a 100644
--- a/include/sound/hdaudio.h
+++ b/include/sound/hdaudio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * HD-audio core stuff
  */
diff --git a/include/sound/hdaudio_ext.h b/include/sound/hdaudio_ext.h
index 8660a7f..ca00130 100644
--- a/include/sound/hdaudio_ext.h
+++ b/include/sound/hdaudio_ext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SOUND_HDAUDIO_EXT_H
 #define __SOUND_HDAUDIO_EXT_H
 
diff --git a/include/sound/l3.h b/include/sound/l3.h
index 1471da2..b6f5807 100644
--- a/include/sound/l3.h
+++ b/include/sound/l3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _L3_H_
 #define _L3_H_ 1
 
diff --git a/include/sound/pcm_drm_eld.h b/include/sound/pcm_drm_eld.h
index 93357b2..28a55a8 100644
--- a/include/sound/pcm_drm_eld.h
+++ b/include/sound/pcm_drm_eld.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SOUND_PCM_DRM_ELD_H
 #define __SOUND_PCM_DRM_ELD_H
 
diff --git a/include/sound/pcm_iec958.h b/include/sound/pcm_iec958.h
index 36f023a..0939aa4 100644
--- a/include/sound/pcm_iec958.h
+++ b/include/sound/pcm_iec958.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SOUND_PCM_IEC958_H
 #define __SOUND_PCM_IEC958_H
 
diff --git a/include/sound/pxa2xx-lib.h b/include/sound/pxa2xx-lib.h
index 6ef629b..5e710d8 100644
--- a/include/sound/pxa2xx-lib.h
+++ b/include/sound/pxa2xx-lib.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PXA2XX_LIB_H
 #define PXA2XX_LIB_H
 
diff --git a/include/sound/s3c24xx_uda134x.h b/include/sound/s3c24xx_uda134x.h
index ffaf1f0..0232b80 100644
--- a/include/sound/s3c24xx_uda134x.h
+++ b/include/sound/s3c24xx_uda134x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _S3C24XX_UDA134X_H_
 #define _S3C24XX_UDA134X_H_ 1
 
diff --git a/include/sound/snd_wavefront.h b/include/sound/snd_wavefront.h
index cd0bab1..6231eb5 100644
--- a/include/sound/snd_wavefront.h
+++ b/include/sound/snd_wavefront.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SOUND_SND_WAVEFRONT_H__
 #define __SOUND_SND_WAVEFRONT_H__
 
diff --git a/include/sound/tas5086.h b/include/sound/tas5086.h
index aac481b..a0a1c38 100644
--- a/include/sound/tas5086.h
+++ b/include/sound/tas5086.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SND_SOC_CODEC_TAS5086_H_
 #define _SND_SOC_CODEC_TAS5086_H_
 
diff --git a/include/target/iscsi/iscsi_target_core.h b/include/target/iscsi/iscsi_target_core.h
index fb87d32..cf5f3ff 100644
--- a/include/target/iscsi/iscsi_target_core.h
+++ b/include/target/iscsi/iscsi_target_core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ISCSI_TARGET_CORE_H
 #define ISCSI_TARGET_CORE_H
 
diff --git a/include/target/iscsi/iscsi_target_stat.h b/include/target/iscsi/iscsi_target_stat.h
index c27dd47..b77d579 100644
--- a/include/target/iscsi/iscsi_target_stat.h
+++ b/include/target/iscsi/iscsi_target_stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ISCSI_TARGET_STAT_H
 #define ISCSI_TARGET_STAT_H
 
diff --git a/include/target/iscsi/iscsi_transport.h b/include/target/iscsi/iscsi_transport.h
index ff1a4f4..91948bc 100644
--- a/include/target/iscsi/iscsi_transport.h
+++ b/include/target/iscsi/iscsi_transport.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include "iscsi_target_core.h" /* struct iscsi_cmd */
 
 struct sockaddr_storage;
diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h
index e150e39..b6b3fb4 100644
--- a/include/target/target_core_backend.h
+++ b/include/target/target_core_backend.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef TARGET_CORE_BACKEND_H
 #define TARGET_CORE_BACKEND_H
 
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 516764f..f5db145 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef TARGET_CORE_BASE_H
 #define TARGET_CORE_BASE_H
 
diff --git a/include/target/target_core_fabric.h b/include/target/target_core_fabric.h
index 33d2e3e..b297aa0 100644
--- a/include/target/target_core_fabric.h
+++ b/include/target/target_core_fabric.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef TARGET_CORE_FABRIC_H
 #define TARGET_CORE_FABRIC_H
 
diff --git a/include/trace/define_trace.h b/include/trace/define_trace.h
index 6e3945f..d9e3d4a 100644
--- a/include/trace/define_trace.h
+++ b/include/trace/define_trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Trace files that want to automate creation of all tracepoints defined
  * in their file should include this file. The following are macros that the
diff --git a/include/trace/events/9p.h b/include/trace/events/9p.h
index 633ee9e..78c5608 100644
--- a/include/trace/events/9p.h
+++ b/include/trace/events/9p.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM 9p
 
diff --git a/include/trace/events/alarmtimer.h b/include/trace/events/alarmtimer.h
index ae4f358..13483c7c 100644
--- a/include/trace/events/alarmtimer.h
+++ b/include/trace/events/alarmtimer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM alarmtimer
 
diff --git a/include/trace/events/asoc.h b/include/trace/events/asoc.h
index 9130dd5..ccd1a3b 100644
--- a/include/trace/events/asoc.h
+++ b/include/trace/events/asoc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM asoc
 
diff --git a/include/trace/events/bcache.h b/include/trace/events/bcache.h
index daf7491..2cbd6e4 100644
--- a/include/trace/events/bcache.h
+++ b/include/trace/events/bcache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM bcache
 
diff --git a/include/trace/events/block.h b/include/trace/events/block.h
index 1fd7ff1a..81b43f5 100644
--- a/include/trace/events/block.h
+++ b/include/trace/events/block.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM block
 
diff --git a/include/trace/events/bpf.h b/include/trace/events/bpf.h
index 52c8425..cc749d7 100644
--- a/include/trace/events/bpf.h
+++ b/include/trace/events/bpf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM bpf
 
diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h
index dc1d0df..32d0c1f 100644
--- a/include/trace/events/btrfs.h
+++ b/include/trace/events/btrfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM btrfs
 
diff --git a/include/trace/events/cgroup.h b/include/trace/events/cgroup.h
index c226f50..d74722c 100644
--- a/include/trace/events/cgroup.h
+++ b/include/trace/events/cgroup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM cgroup
 
diff --git a/include/trace/events/cma.h b/include/trace/events/cma.h
index d7cd961..5017a88 100644
--- a/include/trace/events/cma.h
+++ b/include/trace/events/cma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM cma
 
diff --git a/include/trace/events/compaction.h b/include/trace/events/compaction.h
index 0a18ab6..6074eff 100644
--- a/include/trace/events/compaction.h
+++ b/include/trace/events/compaction.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM compaction
 
diff --git a/include/trace/events/context_tracking.h b/include/trace/events/context_tracking.h
index ce8007c..0aa6fd6 100644
--- a/include/trace/events/context_tracking.h
+++ b/include/trace/events/context_tracking.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM context_tracking
 
diff --git a/include/trace/events/cpuhp.h b/include/trace/events/cpuhp.h
index 996953d..fe1d6e8 100644
--- a/include/trace/events/cpuhp.h
+++ b/include/trace/events/cpuhp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM cpuhp
 
diff --git a/include/trace/events/devlink.h b/include/trace/events/devlink.h
index 09f1df2..44acfbc 100644
--- a/include/trace/events/devlink.h
+++ b/include/trace/events/devlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #if IS_ENABLED(CONFIG_NET_DEVLINK)
 
 #undef TRACE_SYSTEM
diff --git a/include/trace/events/dma_fence.h b/include/trace/events/dma_fence.h
index 1157cb4..d61bfdd 100644
--- a/include/trace/events/dma_fence.h
+++ b/include/trace/events/dma_fence.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM dma_fence
 
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index 9c3bc38..4d0e3af 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM ext4
 
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index 5d216f7..7ab4049 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM f2fs
 
diff --git a/include/trace/events/fib.h b/include/trace/events/fib.h
index 833cfcb..81b7e98 100644
--- a/include/trace/events/fib.h
+++ b/include/trace/events/fib.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM fib
 
diff --git a/include/trace/events/fib6.h b/include/trace/events/fib6.h
index d60096c..d46e247 100644
--- a/include/trace/events/fib6.h
+++ b/include/trace/events/fib6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM fib6
 
diff --git a/include/trace/events/filelock.h b/include/trace/events/filelock.h
index 63a7680..d1faf35 100644
--- a/include/trace/events/filelock.h
+++ b/include/trace/events/filelock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Events for filesystem locks
  *
diff --git a/include/trace/events/filemap.h b/include/trace/events/filemap.h
index ff91325..ee05db7 100644
--- a/include/trace/events/filemap.h
+++ b/include/trace/events/filemap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM filemap
 
diff --git a/include/trace/events/fs_dax.h b/include/trace/events/fs_dax.h
index fbc4a06..8a8df54 100644
--- a/include/trace/events/fs_dax.h
+++ b/include/trace/events/fs_dax.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM fs_dax
 
diff --git a/include/trace/events/fsi.h b/include/trace/events/fsi.h
index 697ee66..92e5e89 100644
--- a/include/trace/events/fsi.h
+++ b/include/trace/events/fsi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM fsi
diff --git a/include/trace/events/fsi_master_gpio.h b/include/trace/events/fsi_master_gpio.h
index 11b36c1..f95cf32 100644
--- a/include/trace/events/fsi_master_gpio.h
+++ b/include/trace/events/fsi_master_gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM fsi_master_gpio
diff --git a/include/trace/events/gpio.h b/include/trace/events/gpio.h
index 2da73b9..5c189a2 100644
--- a/include/trace/events/gpio.h
+++ b/include/trace/events/gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM gpio
 
diff --git a/include/trace/events/hswadsp.h b/include/trace/events/hswadsp.h
index 0f78bbb..939d7a0 100644
--- a/include/trace/events/hswadsp.h
+++ b/include/trace/events/hswadsp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM hswadsp
 
diff --git a/include/trace/events/huge_memory.h b/include/trace/events/huge_memory.h
index 04f58ac..dd4db33 100644
--- a/include/trace/events/huge_memory.h
+++ b/include/trace/events/huge_memory.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM huge_memory
 
diff --git a/include/trace/events/intel-sst.h b/include/trace/events/intel-sst.h
index edc24e6..0416e91 100644
--- a/include/trace/events/intel-sst.h
+++ b/include/trace/events/intel-sst.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM intel-sst
 
diff --git a/include/trace/events/intel_ish.h b/include/trace/events/intel_ish.h
index 92f7d5b..e6d7ff5 100644
--- a/include/trace/events/intel_ish.h
+++ b/include/trace/events/intel_ish.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM intel_ish
 
diff --git a/include/trace/events/iommu.h b/include/trace/events/iommu.h
index 99254ed..72b4582 100644
--- a/include/trace/events/iommu.h
+++ b/include/trace/events/iommu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * iommu trace points
  *
diff --git a/include/trace/events/ipi.h b/include/trace/events/ipi.h
index 834a736..0be71da 100644
--- a/include/trace/events/ipi.h
+++ b/include/trace/events/ipi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM ipi
 
diff --git a/include/trace/events/irq.h b/include/trace/events/irq.h
index 1c41b74..eeceafa 100644
--- a/include/trace/events/irq.h
+++ b/include/trace/events/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM irq
 
diff --git a/include/trace/events/jbd2.h b/include/trace/events/jbd2.h
index c1d1f3e..2310b25 100644
--- a/include/trace/events/jbd2.h
+++ b/include/trace/events/jbd2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM jbd2
 
diff --git a/include/trace/events/kmem.h b/include/trace/events/kmem.h
index 6b2e154..285feea 100644
--- a/include/trace/events/kmem.h
+++ b/include/trace/events/kmem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM kmem
 
diff --git a/include/trace/events/kvm.h b/include/trace/events/kvm.h
index dcffedf..e4b0b8e 100644
--- a/include/trace/events/kvm.h
+++ b/include/trace/events/kvm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #if !defined(_TRACE_KVM_MAIN_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_KVM_MAIN_H
 
diff --git a/include/trace/events/libata.h b/include/trace/events/libata.h
index 2fbbf99..ab69434 100644
--- a/include/trace/events/libata.h
+++ b/include/trace/events/libata.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM libata
 
diff --git a/include/trace/events/lock.h b/include/trace/events/lock.h
index 2821b86..d751212 100644
--- a/include/trace/events/lock.h
+++ b/include/trace/events/lock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM lock
 
diff --git a/include/trace/events/mce.h b/include/trace/events/mce.h
index 70f0214..1391ada 100644
--- a/include/trace/events/mce.h
+++ b/include/trace/events/mce.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM mce
 
diff --git a/include/trace/events/mdio.h b/include/trace/events/mdio.h
index 00d85f5..0f241cb 100644
--- a/include/trace/events/mdio.h
+++ b/include/trace/events/mdio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM mdio
 
diff --git a/include/trace/events/migrate.h b/include/trace/events/migrate.h
index 539b25a..bcf4dac 100644
--- a/include/trace/events/migrate.h
+++ b/include/trace/events/migrate.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM migrate
 
diff --git a/include/trace/events/mmc.h b/include/trace/events/mmc.h
index f30a99a..200f731 100644
--- a/include/trace/events/mmc.h
+++ b/include/trace/events/mmc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM mmc
 
diff --git a/include/trace/events/mmflags.h b/include/trace/events/mmflags.h
index fec6291..648cbf6 100644
--- a/include/trace/events/mmflags.h
+++ b/include/trace/events/mmflags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/node.h>
 #include <linux/mmzone.h>
 #include <linux/compaction.h>
diff --git a/include/trace/events/module.h b/include/trace/events/module.h
index 28c4599..097485c 100644
--- a/include/trace/events/module.h
+++ b/include/trace/events/module.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Because linux/module.h has tracepoints in the header, and ftrace.h
  * used to include this file, define_trace.h includes linux/module.h
diff --git a/include/trace/events/napi.h b/include/trace/events/napi.h
index 0b9e513..f3a1256 100644
--- a/include/trace/events/napi.h
+++ b/include/trace/events/napi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM napi
 
diff --git a/include/trace/events/net.h b/include/trace/events/net.h
index 49cc7c3..9c88673 100644
--- a/include/trace/events/net.h
+++ b/include/trace/events/net.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM net
 
diff --git a/include/trace/events/nilfs2.h b/include/trace/events/nilfs2.h
index c780581..84ee31f 100644
--- a/include/trace/events/nilfs2.h
+++ b/include/trace/events/nilfs2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM nilfs2
 
diff --git a/include/trace/events/nmi.h b/include/trace/events/nmi.h
index da3ee96..18e0411 100644
--- a/include/trace/events/nmi.h
+++ b/include/trace/events/nmi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM nmi
 
diff --git a/include/trace/events/oom.h b/include/trace/events/oom.h
index c3c19d4..26a11e4 100644
--- a/include/trace/events/oom.h
+++ b/include/trace/events/oom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM oom
 
diff --git a/include/trace/events/page_isolation.h b/include/trace/events/page_isolation.h
index 8738a78..bf4c42e 100644
--- a/include/trace/events/page_isolation.h
+++ b/include/trace/events/page_isolation.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM page_isolation
 
diff --git a/include/trace/events/page_ref.h b/include/trace/events/page_ref.h
index 81001f8..5d2ea93 100644
--- a/include/trace/events/page_ref.h
+++ b/include/trace/events/page_ref.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM page_ref
 
diff --git a/include/trace/events/pagemap.h b/include/trace/events/pagemap.h
index ce0803b..8fd1bab 100644
--- a/include/trace/events/pagemap.h
+++ b/include/trace/events/pagemap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM pagemap
 
diff --git a/include/trace/events/percpu.h b/include/trace/events/percpu.h
index ad34b1b..df112a6 100644
--- a/include/trace/events/percpu.h
+++ b/include/trace/events/percpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM percpu
 
diff --git a/include/trace/events/power.h b/include/trace/events/power.h
index 54e3aad..908977d 100644
--- a/include/trace/events/power.h
+++ b/include/trace/events/power.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM power
 
diff --git a/include/trace/events/power_cpu_migrate.h b/include/trace/events/power_cpu_migrate.h
index f76dd4d..e338810 100644
--- a/include/trace/events/power_cpu_migrate.h
+++ b/include/trace/events/power_cpu_migrate.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM power
 
diff --git a/include/trace/events/printk.h b/include/trace/events/printk.h
index f350170..13d405b 100644
--- a/include/trace/events/printk.h
+++ b/include/trace/events/printk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM printk
 
diff --git a/include/trace/events/random.h b/include/trace/events/random.h
index 4684de3..0560dfc3 100644
--- a/include/trace/events/random.h
+++ b/include/trace/events/random.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM random
 
diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h
index e91ae1f..59d40c4 100644
--- a/include/trace/events/rcu.h
+++ b/include/trace/events/rcu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM rcu
 
diff --git a/include/trace/events/regulator.h b/include/trace/events/regulator.h
index 37502a7..b70583c 100644
--- a/include/trace/events/regulator.h
+++ b/include/trace/events/regulator.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM regulator
 
diff --git a/include/trace/events/rpm.h b/include/trace/events/rpm.h
index 33f85b6..26927a5 100644
--- a/include/trace/events/rpm.h
+++ b/include/trace/events/rpm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM rpm
diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
index 3c8b7f6..da10aa2 100644
--- a/include/trace/events/sched.h
+++ b/include/trace/events/sched.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM sched
 
diff --git a/include/trace/events/scsi.h b/include/trace/events/scsi.h
index 9a9b3e2..f624969 100644
--- a/include/trace/events/scsi.h
+++ b/include/trace/events/scsi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM scsi
 
diff --git a/include/trace/events/signal.h b/include/trace/events/signal.h
index 39a8a43..8658292 100644
--- a/include/trace/events/signal.h
+++ b/include/trace/events/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM signal
 
diff --git a/include/trace/events/skb.h b/include/trace/events/skb.h
index 0c68ae22..9e92f22 100644
--- a/include/trace/events/skb.h
+++ b/include/trace/events/skb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM skb
 
diff --git a/include/trace/events/sock.h b/include/trace/events/sock.h
index 779abb9..6d31c05 100644
--- a/include/trace/events/sock.h
+++ b/include/trace/events/sock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM sock
 
diff --git a/include/trace/events/spi.h b/include/trace/events/spi.h
index f9f702b..277bb9d 100644
--- a/include/trace/events/spi.h
+++ b/include/trace/events/spi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM spi
 
diff --git a/include/trace/events/spmi.h b/include/trace/events/spmi.h
index 62f005e..8b60efe 100644
--- a/include/trace/events/spmi.h
+++ b/include/trace/events/spmi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM spmi
 
diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h
index 8a707f8..25a7739 100644
--- a/include/trace/events/sunrpc.h
+++ b/include/trace/events/sunrpc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM sunrpc
 
diff --git a/include/trace/events/sunvnet.h b/include/trace/events/sunvnet.h
index eb080b2..8d444f1 100644
--- a/include/trace/events/sunvnet.h
+++ b/include/trace/events/sunvnet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM sunvnet
 
diff --git a/include/trace/events/swiotlb.h b/include/trace/events/swiotlb.h
index 288c0c5..705be43b 100644
--- a/include/trace/events/swiotlb.h
+++ b/include/trace/events/swiotlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM swiotlb
 
diff --git a/include/trace/events/syscalls.h b/include/trace/events/syscalls.h
index b35533b..44a3259 100644
--- a/include/trace/events/syscalls.h
+++ b/include/trace/events/syscalls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM raw_syscalls
 #undef TRACE_INCLUDE_FILE
diff --git a/include/trace/events/target.h b/include/trace/events/target.h
index 50fea66..914a872 100644
--- a/include/trace/events/target.h
+++ b/include/trace/events/target.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM target
 
diff --git a/include/trace/events/task.h b/include/trace/events/task.h
index 2cca6cd..64d1609 100644
--- a/include/trace/events/task.h
+++ b/include/trace/events/task.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM task
 
diff --git a/include/trace/events/thermal.h b/include/trace/events/thermal.h
index 6cde5b3..466c09d 100644
--- a/include/trace/events/thermal.h
+++ b/include/trace/events/thermal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM thermal
 
diff --git a/include/trace/events/thermal_power_allocator.h b/include/trace/events/thermal_power_allocator.h
index 5afae8f..1c8fb95 100644
--- a/include/trace/events/thermal_power_allocator.h
+++ b/include/trace/events/thermal_power_allocator.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM thermal_power_allocator
 
diff --git a/include/trace/events/thp.h b/include/trace/events/thp.h
index b59b065..d7fbbe5 100644
--- a/include/trace/events/thp.h
+++ b/include/trace/events/thp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM thp
 
diff --git a/include/trace/events/timer.h b/include/trace/events/timer.h
index 80787ea..16e305e 100644
--- a/include/trace/events/timer.h
+++ b/include/trace/events/timer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM timer
 
diff --git a/include/trace/events/tlb.h b/include/trace/events/tlb.h
index 9d14b19..b4d8e7d 100644
--- a/include/trace/events/tlb.h
+++ b/include/trace/events/tlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM tlb
 
diff --git a/include/trace/events/udp.h b/include/trace/events/udp.h
index a664bb9..336fe27 100644
--- a/include/trace/events/udp.h
+++ b/include/trace/events/udp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM udp
 
diff --git a/include/trace/events/v4l2.h b/include/trace/events/v4l2.h
index b3a85b3..83860de 100644
--- a/include/trace/events/v4l2.h
+++ b/include/trace/events/v4l2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM v4l2
 
diff --git a/include/trace/events/vb2.h b/include/trace/events/vb2.h
index c1a2241..a40146d 100644
--- a/include/trace/events/vb2.h
+++ b/include/trace/events/vb2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM vb2
 
diff --git a/include/trace/events/vmscan.h b/include/trace/events/vmscan.h
index 27e8a5c..dc23cf0 100644
--- a/include/trace/events/vmscan.h
+++ b/include/trace/events/vmscan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM vmscan
 
diff --git a/include/trace/events/vsock_virtio_transport_common.h b/include/trace/events/vsock_virtio_transport_common.h
index b7f1d62..6782213 100644
--- a/include/trace/events/vsock_virtio_transport_common.h
+++ b/include/trace/events/vsock_virtio_transport_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM vsock
 
diff --git a/include/trace/events/wbt.h b/include/trace/events/wbt.h
index 3c518e4..b048694 100644
--- a/include/trace/events/wbt.h
+++ b/include/trace/events/wbt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM wbt
 
diff --git a/include/trace/events/workqueue.h b/include/trace/events/workqueue.h
index bf0e18b..2f057a4 100644
--- a/include/trace/events/workqueue.h
+++ b/include/trace/events/workqueue.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM workqueue
 
diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h
index 9b57f01..2e1fa79 100644
--- a/include/trace/events/writeback.h
+++ b/include/trace/events/writeback.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM writeback
 
diff --git a/include/trace/events/xdp.h b/include/trace/events/xdp.h
index 4e16c43..810e941 100644
--- a/include/trace/events/xdp.h
+++ b/include/trace/events/xdp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM xdp
 
diff --git a/include/trace/events/xen.h b/include/trace/events/xen.h
index 1b4fed7..a7c8b45 100644
--- a/include/trace/events/xen.h
+++ b/include/trace/events/xen.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM xen
 
diff --git a/include/trace/perf.h b/include/trace/perf.h
index 04fe68bb..e4b2498 100644
--- a/include/trace/perf.h
+++ b/include/trace/perf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #undef TRACE_SYSTEM_VAR
 
diff --git a/include/trace/syscall.h b/include/trace/syscall.h
index 7434f0f..dc8ac27 100644
--- a/include/trace/syscall.h
+++ b/include/trace/syscall.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TRACE_SYSCALL_H
 #define _TRACE_SYSCALL_H
 
diff --git a/include/trace/trace_events.h b/include/trace/trace_events.h
index 3976fa1..bfda803 100644
--- a/include/trace/trace_events.h
+++ b/include/trace/trace_events.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Stage 1 of the trace events.
  *
diff --git a/include/video/aty128.h b/include/video/aty128.h
index f0851e3..cb6721e 100644
--- a/include/video/aty128.h
+++ b/include/video/aty128.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*  $Id: aty128.h,v 1.1 1999/10/12 11:00:40 geert Exp $
  *  linux/drivers/video/aty128.h
  *  Register definitions for ATI Rage128 boards
diff --git a/include/video/edid.h b/include/video/edid.h
index 0cb8b2a..f614371 100644
--- a/include/video/edid.h
+++ b/include/video/edid.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __linux_video_edid_h__
 #define __linux_video_edid_h__
 
diff --git a/include/video/iga.h b/include/video/iga.h
index 5a48f16..83ca184 100644
--- a/include/video/iga.h
+++ b/include/video/iga.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: iga.h,v 1.2 1999/09/11 22:56:31 zaitcev Exp $
  * iga1682.h: Sparc/PCI iga1682 driver constants etc.
  *
diff --git a/include/video/mbxfb.h b/include/video/mbxfb.h
index ea18961..35921cb 100644
--- a/include/video/mbxfb.h
+++ b/include/video/mbxfb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MBX_FB_H
 #define __MBX_FB_H
 
diff --git a/include/video/newport.h b/include/video/newport.h
index de980a3..bcbb3d1 100644
--- a/include/video/newport.h
+++ b/include/video/newport.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: newport.h,v 1.5 1999/08/04 06:01:51 ulfc Exp $
  *
  * newport.h: Defines and register layout for NEWPORT graphics
diff --git a/include/video/radeon.h b/include/video/radeon.h
index 56b188a..005eae1 100644
--- a/include/video/radeon.h
+++ b/include/video/radeon.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _RADEON_H
 #define _RADEON_H
 
diff --git a/include/video/sh_mobile_lcdc.h b/include/video/sh_mobile_lcdc.h
index 2605fa8..f706b0f 100644
--- a/include/video/sh_mobile_lcdc.h
+++ b/include/video/sh_mobile_lcdc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_MOBILE_LCDC_H__
 #define __ASM_SH_MOBILE_LCDC_H__
 
diff --git a/include/video/sh_mobile_meram.h b/include/video/sh_mobile_meram.h
index 062e6e7..f4efc21 100644
--- a/include/video/sh_mobile_meram.h
+++ b/include/video/sh_mobile_meram.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __VIDEO_SH_MOBILE_MERAM_H__
 #define __VIDEO_SH_MOBILE_MERAM_H__
 
diff --git a/include/video/sstfb.h b/include/video/sstfb.h
index c449eac..28384f3 100644
--- a/include/video/sstfb.h
+++ b/include/video/sstfb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/drivers/video/sstfb.h -- voodoo graphics frame buffer
  *
diff --git a/include/video/tdfx.h b/include/video/tdfx.h
index 69674b9..6144633 100644
--- a/include/video/tdfx.h
+++ b/include/video/tdfx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TDFX_H
 #define _TDFX_H
 
diff --git a/include/video/trident.h b/include/video/trident.h
index b6ce19d..5ccc0d6 100644
--- a/include/video/trident.h
+++ b/include/video/trident.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef TRIDENTFB_DEBUG
 #define TRIDENTFB_DEBUG 0
diff --git a/include/video/udlfb.h b/include/video/udlfb.h
index 3ea90ae..1252a7a 100644
--- a/include/video/udlfb.h
+++ b/include/video/udlfb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef UDLFB_H
 #define UDLFB_H
 
diff --git a/include/video/uvesafb.h b/include/video/uvesafb.h
index 30f5362..8d2a3bf 100644
--- a/include/video/uvesafb.h
+++ b/include/video/uvesafb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _UVESAFB_H
 #define _UVESAFB_H
 
diff --git a/include/xen/arm/hypervisor.h b/include/xen/arm/hypervisor.h
index 44b587b..2982571f 100644
--- a/include/xen/arm/hypervisor.h
+++ b/include/xen/arm/hypervisor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ARM_XEN_HYPERVISOR_H
 #define _ASM_ARM_XEN_HYPERVISOR_H
 
diff --git a/include/xen/arm/interface.h b/include/xen/arm/interface.h
index 75d5968..c3eada2 100644
--- a/include/xen/arm/interface.h
+++ b/include/xen/arm/interface.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /******************************************************************************
  * Guest OS interface to ARM Xen.
  *
diff --git a/include/xen/arm/page-coherent.h b/include/xen/arm/page-coherent.h
index b1b4ecd..59a2607 100644
--- a/include/xen/arm/page-coherent.h
+++ b/include/xen/arm/page-coherent.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ARM_XEN_PAGE_COHERENT_H
 #define _ASM_ARM_XEN_PAGE_COHERENT_H
 
diff --git a/include/xen/arm/page.h b/include/xen/arm/page.h
index 6adc2a9..f77dcbc 100644
--- a/include/xen/arm/page.h
+++ b/include/xen/arm/page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ARM_XEN_PAGE_H
 #define _ASM_ARM_XEN_PAGE_H
 
diff --git a/include/xen/balloon.h b/include/xen/balloon.h
index 8906361..4914b93 100644
--- a/include/xen/balloon.h
+++ b/include/xen/balloon.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /******************************************************************************
  * Xen balloon functionality
  */
diff --git a/include/xen/events.h b/include/xen/events.h
index f442ca5..c3e6bc6 100644
--- a/include/xen/events.h
+++ b/include/xen/events.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _XEN_EVENTS_H
 #define _XEN_EVENTS_H
 
diff --git a/include/xen/features.h b/include/xen/features.h
index 27292d4..e4cb464 100644
--- a/include/xen/features.h
+++ b/include/xen/features.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /******************************************************************************
  * features.h
  *
diff --git a/include/xen/hvc-console.h b/include/xen/hvc-console.h
index b62dfef..d8949d5 100644
--- a/include/xen/hvc-console.h
+++ b/include/xen/hvc-console.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef XEN_HVC_CONSOLE_H
 #define XEN_HVC_CONSOLE_H
 
diff --git a/include/xen/hvm.h b/include/xen/hvm.h
index 63917a8..0b15f8c 100644
--- a/include/xen/hvm.h
+++ b/include/xen/hvm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Simple wrappers around HVM functions */
 #ifndef XEN_HVM_H__
 #define XEN_HVM_H__
diff --git a/include/xen/interface/event_channel.h b/include/xen/interface/event_channel.h
index 7e6acef..45650c9 100644
--- a/include/xen/interface/event_channel.h
+++ b/include/xen/interface/event_channel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /******************************************************************************
  * event_channel.h
  *
diff --git a/include/xen/interface/features.h b/include/xen/interface/features.h
index 6ad3d11..9b0eb57 100644
--- a/include/xen/interface/features.h
+++ b/include/xen/interface/features.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /******************************************************************************
  * features.h
  *
diff --git a/include/xen/interface/io/blkif.h b/include/xen/interface/io/blkif.h
index 8b8cfad..5e40041 100644
--- a/include/xen/interface/io/blkif.h
+++ b/include/xen/interface/io/blkif.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /******************************************************************************
  * blkif.h
  *
diff --git a/include/xen/interface/io/console.h b/include/xen/interface/io/console.h
index e563de7..85ca8b0 100644
--- a/include/xen/interface/io/console.h
+++ b/include/xen/interface/io/console.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /******************************************************************************
  * console.h
  *
diff --git a/include/xen/interface/io/protocols.h b/include/xen/interface/io/protocols.h
index 545a14b..6a89dc1 100644
--- a/include/xen/interface/io/protocols.h
+++ b/include/xen/interface/io/protocols.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __XEN_PROTOCOLS_H__
 #define __XEN_PROTOCOLS_H__
 
diff --git a/include/xen/interface/io/ring.h b/include/xen/interface/io/ring.h
index e547088..3f40501 100644
--- a/include/xen/interface/io/ring.h
+++ b/include/xen/interface/io/ring.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /******************************************************************************
  * ring.h
  *
diff --git a/include/xen/interface/io/xenbus.h b/include/xen/interface/io/xenbus.h
index 9fda532..aaf2951 100644
--- a/include/xen/interface/io/xenbus.h
+++ b/include/xen/interface/io/xenbus.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*****************************************************************************
  * xenbus.h
  *
diff --git a/include/xen/interface/io/xs_wire.h b/include/xen/interface/io/xs_wire.h
index 794deb0..1517c7e 100644
--- a/include/xen/interface/io/xs_wire.h
+++ b/include/xen/interface/io/xs_wire.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Details of the "wire" protocol between Xen Store Daemon and client
  * library or guest kernel.
diff --git a/include/xen/interface/memory.h b/include/xen/interface/memory.h
index 9aa8988..583dd93 100644
--- a/include/xen/interface/memory.h
+++ b/include/xen/interface/memory.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /******************************************************************************
  * memory.h
  *
diff --git a/include/xen/interface/nmi.h b/include/xen/interface/nmi.h
index b47d9d0..73d9b0a 100644
--- a/include/xen/interface/nmi.h
+++ b/include/xen/interface/nmi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /******************************************************************************
  * nmi.h
  *
diff --git a/include/xen/interface/version.h b/include/xen/interface/version.h
index 145f12f..8772b55 100644
--- a/include/xen/interface/version.h
+++ b/include/xen/interface/version.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /******************************************************************************
  * version.h
  *
diff --git a/include/xen/interface/xenpmu.h b/include/xen/interface/xenpmu.h
index 139efc9..ad603ea 100644
--- a/include/xen/interface/xenpmu.h
+++ b/include/xen/interface/xenpmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __XEN_PUBLIC_XENPMU_H__
 #define __XEN_PUBLIC_XENPMU_H__
 
diff --git a/include/xen/page.h b/include/xen/page.h
index 064194f..df6d6b6 100644
--- a/include/xen/page.h
+++ b/include/xen/page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _XEN_PAGE_H
 #define _XEN_PAGE_H
 
diff --git a/include/xen/platform_pci.h b/include/xen/platform_pci.h
index 5c52b55..e51e7cb 100644
--- a/include/xen/platform_pci.h
+++ b/include/xen/platform_pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _XEN_PLATFORM_PCI_H
 #define _XEN_PLATFORM_PCI_H
 
diff --git a/include/xen/swiotlb-xen.h b/include/xen/swiotlb-xen.h
index ed2de36..5e4b83f 100644
--- a/include/xen/swiotlb-xen.h
+++ b/include/xen/swiotlb-xen.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SWIOTLB_XEN_H
 #define __LINUX_SWIOTLB_XEN_H
 
diff --git a/include/xen/tmem.h b/include/xen/tmem.h
index 3930a90..c80bafe 100644
--- a/include/xen/tmem.h
+++ b/include/xen/tmem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _XEN_TMEM_H
 #define _XEN_TMEM_H
 
diff --git a/include/xen/xen-ops.h b/include/xen/xen-ops.h
index 218e6aa..a95e65e 100644
--- a/include/xen/xen-ops.h
+++ b/include/xen/xen-ops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef INCLUDE_XEN_OPS_H
 #define INCLUDE_XEN_OPS_H
 
diff --git a/include/xen/xen.h b/include/xen/xen.h
index 28c59ca..9d4340c 100644
--- a/include/xen/xen.h
+++ b/include/xen/xen.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _XEN_XEN_H
 #define _XEN_XEN_H