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-rw-r--r--lib/842/842.h1
-rw-r--r--lib/842/842_debugfs.h1
-rw-r--r--lib/Makefile1
-rw-r--r--lib/argv_split.c1
-rw-r--r--lib/audit.c1
-rw-r--r--lib/bcd.c1
-rw-r--r--lib/bug.c1
-rw-r--r--lib/bust_spinlocks.c1
-rw-r--r--lib/check_signature.c1
-rw-r--r--lib/clz_tab.c1
-rw-r--r--lib/compat_audit.c1
-rw-r--r--lib/cpumask.c1
-rw-r--r--lib/crc32defs.h1
-rw-r--r--lib/ctype.c1
-rw-r--r--lib/debug_info.c1
-rw-r--r--lib/dec_and_lock.c1
-rw-r--r--lib/decompress.c1
-rw-r--r--lib/decompress_inflate.c1
-rw-r--r--lib/devres.c1
-rw-r--r--lib/div64.c1
-rw-r--r--lib/dma-noop.c1
-rw-r--r--lib/dma-virt.c1
-rw-r--r--lib/dump_stack.c1
-rw-r--r--lib/dynamic_queue_limits.c1
-rw-r--r--lib/errseq.c1
-rw-r--r--lib/flex_proportions.c1
-rw-r--r--lib/fonts/Makefile1
-rw-r--r--lib/fonts/font_10x18.c1
-rw-r--r--lib/fonts/font_6x10.c1
-rw-r--r--lib/fonts/font_6x11.c1
-rw-r--r--lib/fonts/font_7x14.c1
-rw-r--r--lib/fonts/font_8x16.c1
-rw-r--r--lib/fonts/font_8x8.c1
-rw-r--r--lib/fonts/font_acorn_8x8.c1
-rw-r--r--lib/fonts/font_pearl_8x8.c1
-rw-r--r--lib/fonts/font_sun12x22.c1
-rw-r--r--lib/fonts/font_sun8x16.c1
-rw-r--r--lib/gen_crc32table.c1
-rw-r--r--lib/hweight.c1
-rw-r--r--lib/inflate.c1
-rw-r--r--lib/int_sqrt.c1
-rw-r--r--lib/iomap.c1
-rw-r--r--lib/iommu-common.c1
-rw-r--r--lib/iommu-helper.c1
-rw-r--r--lib/ioremap.c1
-rw-r--r--lib/irq_poll.c1
-rw-r--r--lib/kasprintf.c1
-rw-r--r--lib/kstrtox.c1
-rw-r--r--lib/kstrtox.h1
-rw-r--r--lib/list_sort.c1
-rw-r--r--lib/locking-selftest-hardirq.h1
-rw-r--r--lib/locking-selftest-mutex.h1
-rw-r--r--lib/locking-selftest-rlock.h1
-rw-r--r--lib/locking-selftest-rsem.h1
-rw-r--r--lib/locking-selftest-rtmutex.h1
-rw-r--r--lib/locking-selftest-softirq.h1
-rw-r--r--lib/locking-selftest-spin.h1
-rw-r--r--lib/locking-selftest-wlock.h1
-rw-r--r--lib/locking-selftest-wsem.h1
-rw-r--r--lib/locking-selftest.c1
-rw-r--r--lib/lockref.c1
-rw-r--r--lib/lzo/lzodefs.h1
-rw-r--r--lib/memweight.c1
-rw-r--r--lib/mpi/Makefile1
-rw-r--r--lib/net_utils.c1
-rw-r--r--lib/nlattr.c1
-rw-r--r--lib/nmi_backtrace.c1
-rw-r--r--lib/nodemask.c1
-rw-r--r--lib/notifier-error-inject.h1
-rw-r--r--lib/once.c1
-rw-r--r--lib/percpu_counter.c1
-rw-r--r--lib/raid6/Makefile1
-rw-r--r--lib/raid6/recov_s390xc.c1
-rw-r--r--lib/raid6/s390vx.uc1
-rw-r--r--lib/raid6/test/Makefile1
-rw-r--r--lib/random32.c1
-rw-r--r--lib/rational.c1
-rw-r--r--lib/reciprocal_div.c1
-rw-r--r--lib/refcount.c1
-rw-r--r--lib/seq_buf.c1
-rw-r--r--lib/sha1.c1
-rw-r--r--lib/smp_processor_id.c1
-rw-r--r--lib/sort.c1
-rw-r--r--lib/string.c1
-rw-r--r--lib/strncpy_from_user.c1
-rw-r--r--lib/strnlen_user.c1
-rw-r--r--lib/syscall.c1
-rw-r--r--lib/ubsan.h1
-rw-r--r--lib/ucs2_string.c1
-rw-r--r--lib/usercopy.c1
-rw-r--r--lib/win_minmax.c1
91 files changed, 91 insertions, 0 deletions
diff --git a/lib/842/842.h b/lib/842/842.h
index e0a122bc1cdb0..7b1f581a29073 100644
--- a/lib/842/842.h
+++ b/lib/842/842.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __842_H__
#define __842_H__
diff --git a/lib/842/842_debugfs.h b/lib/842/842_debugfs.h
index e7f3bffaf2551..277e403e8701f 100644
--- a/lib/842/842_debugfs.h
+++ b/lib/842/842_debugfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __842_DEBUGFS_H__
#define __842_DEBUGFS_H__
diff --git a/lib/Makefile b/lib/Makefile
index dafa79613fb47..b8f2c16fccaa9 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
#
# Makefile for some libs needed in the kernel.
#
diff --git a/lib/argv_split.c b/lib/argv_split.c
index e927ed0e18a83..5c35752a9414c 100644
--- a/lib/argv_split.c
+++ b/lib/argv_split.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Helper function for splitting a string into an argv-like array.
*/
diff --git a/lib/audit.c b/lib/audit.c
index b8fb5ee81e26e..5004bff928a70 100644
--- a/lib/audit.c
+++ b/lib/audit.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/init.h>
#include <linux/types.h>
#include <linux/audit.h>
diff --git a/lib/bcd.c b/lib/bcd.c
index 40d304efe2728..7e4750b6e8014 100644
--- a/lib/bcd.c
+++ b/lib/bcd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/bcd.h>
#include <linux/export.h>
diff --git a/lib/bug.c b/lib/bug.c
index a6a1137d06db7..1e094408c893d 100644
--- a/lib/bug.c
+++ b/lib/bug.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
Generic support for BUG()
diff --git a/lib/bust_spinlocks.c b/lib/bust_spinlocks.c
index f8e0e53673983..ab719495e2cb4 100644
--- a/lib/bust_spinlocks.c
+++ b/lib/bust_spinlocks.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* lib/bust_spinlocks.c
*
diff --git a/lib/check_signature.c b/lib/check_signature.c
index 6b49797980c4f..43a7301da7ab2 100644
--- a/lib/check_signature.c
+++ b/lib/check_signature.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/io.h>
#include <linux/export.h>
diff --git a/lib/clz_tab.c b/lib/clz_tab.c
index 7287b4a991a7a..b6118d09f244b 100644
--- a/lib/clz_tab.c
+++ b/lib/clz_tab.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
const unsigned char __clz_tab[] = {
0, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5,
5, 5, 5, 5, 5, 5, 5, 5,
diff --git a/lib/compat_audit.c b/lib/compat_audit.c
index 873f75b640abf..77eabad69b4a8 100644
--- a/lib/compat_audit.c
+++ b/lib/compat_audit.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/init.h>
#include <linux/types.h>
#include <asm/unistd32.h>
diff --git a/lib/cpumask.c b/lib/cpumask.c
index 8b1a1bd775393..35fe142ebb5e2 100644
--- a/lib/cpumask.c
+++ b/lib/cpumask.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/bitops.h>
diff --git a/lib/crc32defs.h b/lib/crc32defs.h
index 64cba2c3c7008..cb275a28a7500 100644
--- a/lib/crc32defs.h
+++ b/lib/crc32defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* There are multiple 16-bit CRC polynomials in common use, but this is
* *the* standard CRC-32 polynomial, first popularized by Ethernet.
diff --git a/lib/ctype.c b/lib/ctype.c
index c646df91a2f7d..c819fe269eb2b 100644
--- a/lib/ctype.c
+++ b/lib/ctype.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* linux/lib/ctype.c
*
diff --git a/lib/debug_info.c b/lib/debug_info.c
index 2edbe27517edf..36daf753293c3 100644
--- a/lib/debug_info.c
+++ b/lib/debug_info.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* This file exists solely to ensure debug information for some core
* data structures is included in the final image even for
diff --git a/lib/dec_and_lock.c b/lib/dec_and_lock.c
index e26278576b311..347fa7ac2e8a8 100644
--- a/lib/dec_and_lock.c
+++ b/lib/dec_and_lock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/export.h>
#include <linux/spinlock.h>
#include <linux/atomic.h>
diff --git a/lib/decompress.c b/lib/decompress.c
index 62696dff5730b..857ab1af1ef39 100644
--- a/lib/decompress.c
+++ b/lib/decompress.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* decompress.c
*
diff --git a/lib/decompress_inflate.c b/lib/decompress_inflate.c
index 555c06bf20daa..63b4b7eee138d 100644
--- a/lib/decompress_inflate.c
+++ b/lib/decompress_inflate.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#ifdef STATIC
#define PREBOOT
/* Pre-boot environment: included */
diff --git a/lib/devres.c b/lib/devres.c
index 78eca713b1d9a..5f2aedd58bc50 100644
--- a/lib/devres.c
+++ b/lib/devres.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/err.h>
#include <linux/pci.h>
#include <linux/io.h>
diff --git a/lib/div64.c b/lib/div64.c
index 7f345259c32f1..58e2a404097e9 100644
--- a/lib/div64.c
+++ b/lib/div64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2003 Bernardo Innocenti <bernie@develer.com>
*
diff --git a/lib/dma-noop.c b/lib/dma-noop.c
index acc4190e2731e..a10185b0c2d4a 100644
--- a/lib/dma-noop.c
+++ b/lib/dma-noop.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* lib/dma-noop.c
*
diff --git a/lib/dma-virt.c b/lib/dma-virt.c
index 5c4f113297213..8e61a02ef9ca0 100644
--- a/lib/dma-virt.c
+++ b/lib/dma-virt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* lib/dma-virt.c
*
diff --git a/lib/dump_stack.c b/lib/dump_stack.c
index 625375e7f11f9..c5edbedd364dc 100644
--- a/lib/dump_stack.c
+++ b/lib/dump_stack.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Provide a default dump_stack() function for architectures
* which don't implement their own.
diff --git a/lib/dynamic_queue_limits.c b/lib/dynamic_queue_limits.c
index f346715e22557..6a406fafb5d61 100644
--- a/lib/dynamic_queue_limits.c
+++ b/lib/dynamic_queue_limits.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Dynamic byte queue limits. See include/linux/dynamic_queue_limits.h
*
diff --git a/lib/errseq.c b/lib/errseq.c
index 7b900c2a277ad..79cc66897db42 100644
--- a/lib/errseq.c
+++ b/lib/errseq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/err.h>
#include <linux/bug.h>
#include <linux/atomic.h>
diff --git a/lib/flex_proportions.c b/lib/flex_proportions.c
index 2cc1f94e03a1d..7852bfff50b12 100644
--- a/lib/flex_proportions.c
+++ b/lib/flex_proportions.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Floating proportions with flexible aging period
*
diff --git a/lib/fonts/Makefile b/lib/fonts/Makefile
index e04d010cfbf59..d56f02dea83a0 100644
--- a/lib/fonts/Makefile
+++ b/lib/fonts/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
# Font handling
font-objs := fonts.o
diff --git a/lib/fonts/font_10x18.c b/lib/fonts/font_10x18.c
index 6be72bb218ee4..532f0ff89a962 100644
--- a/lib/fonts/font_10x18.c
+++ b/lib/fonts/font_10x18.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/********************************
* adapted from font_sun12x22.c *
* by Jurriaan Kalkman 06-2005 *
diff --git a/lib/fonts/font_6x10.c b/lib/fonts/font_6x10.c
index b20620904d314..09b2cc03435b9 100644
--- a/lib/fonts/font_6x10.c
+++ b/lib/fonts/font_6x10.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/font.h>
static const unsigned char fontdata_6x10[] = {
diff --git a/lib/fonts/font_6x11.c b/lib/fonts/font_6x11.c
index 46e86e67aa6aa..d7136c33f1f01 100644
--- a/lib/fonts/font_6x11.c
+++ b/lib/fonts/font_6x11.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/**********************************************/
/* */
/* Font file generated by rthelen */
diff --git a/lib/fonts/font_7x14.c b/lib/fonts/font_7x14.c
index 3b7dbf9c060b3..9ae5b62c8a0db 100644
--- a/lib/fonts/font_7x14.c
+++ b/lib/fonts/font_7x14.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/**************************************/
/* this file adapted from font_8x16.c */
/* by Jurriaan Kalkman 05-2005 */
diff --git a/lib/fonts/font_8x16.c b/lib/fonts/font_8x16.c
index 00a0c67a5c7d0..34292cdfaa232 100644
--- a/lib/fonts/font_8x16.c
+++ b/lib/fonts/font_8x16.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/**********************************************/
/* */
/* Font file generated by cpi2fnt */
diff --git a/lib/fonts/font_8x8.c b/lib/fonts/font_8x8.c
index 9f56efe2cee72..751becf3c521e 100644
--- a/lib/fonts/font_8x8.c
+++ b/lib/fonts/font_8x8.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/**********************************************/
/* */
/* Font file generated by cpi2fnt */
diff --git a/lib/fonts/font_acorn_8x8.c b/lib/fonts/font_acorn_8x8.c
index 639e31ae1100a..0ff0e85d4481b 100644
--- a/lib/fonts/font_acorn_8x8.c
+++ b/lib/fonts/font_acorn_8x8.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/* Acorn-like font definition, with PC graphics characters */
#include <linux/font.h>
diff --git a/lib/fonts/font_pearl_8x8.c b/lib/fonts/font_pearl_8x8.c
index dc6ad539ca4e4..b0514c0a74451 100644
--- a/lib/fonts/font_pearl_8x8.c
+++ b/lib/fonts/font_pearl_8x8.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/**********************************************/
/* */
/* Font file generated by cpi2fnt */
diff --git a/lib/fonts/font_sun12x22.c b/lib/fonts/font_sun12x22.c
index d3643853c33af..955d6eee3959d 100644
--- a/lib/fonts/font_sun12x22.c
+++ b/lib/fonts/font_sun12x22.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/font.h>
#define FONTDATAMAX 11264
diff --git a/lib/fonts/font_sun8x16.c b/lib/fonts/font_sun8x16.c
index 268151325b83e..03d71e53954ab 100644
--- a/lib/fonts/font_sun8x16.c
+++ b/lib/fonts/font_sun8x16.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/font.h>
#define FONTDATAMAX 4096
diff --git a/lib/gen_crc32table.c b/lib/gen_crc32table.c
index d83a372fa76f2..8f26660ea10a4 100644
--- a/lib/gen_crc32table.c
+++ b/lib/gen_crc32table.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <stdio.h>
#include "../include/generated/autoconf.h"
#include "crc32defs.h"
diff --git a/lib/hweight.c b/lib/hweight.c
index 43273a7d83cf4..7660d88fd4960 100644
--- a/lib/hweight.c
+++ b/lib/hweight.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/export.h>
#include <linux/bitops.h>
#include <asm/types.h>
diff --git a/lib/inflate.c b/lib/inflate.c
index 013a761934812..fbaf03c1748dd 100644
--- a/lib/inflate.c
+++ b/lib/inflate.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#define DEBG(x)
#define DEBG1(x)
/* inflate.c -- Not copyrighted 1992 by Mark Adler
diff --git a/lib/int_sqrt.c b/lib/int_sqrt.c
index 1ef4cc344977c..db0b5aa071fc1 100644
--- a/lib/int_sqrt.c
+++ b/lib/int_sqrt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2013 Davidlohr Bueso <davidlohr.bueso@hp.com>
*
diff --git a/lib/iomap.c b/lib/iomap.c
index fc3dcb4b238ec..541d926da95ec 100644
--- a/lib/iomap.c
+++ b/lib/iomap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Implement the default iomap interfaces
*
diff --git a/lib/iommu-common.c b/lib/iommu-common.c
index 858dc1aae478b..55b00de106b51 100644
--- a/lib/iommu-common.c
+++ b/lib/iommu-common.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* IOMMU mmap management and range allocation functions.
* Based almost entirely upon the powerpc iommu allocator.
diff --git a/lib/iommu-helper.c b/lib/iommu-helper.c
index a816f3a806258..23633c0fda4a6 100644
--- a/lib/iommu-helper.c
+++ b/lib/iommu-helper.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* IOMMU helper functions for the free area management
*/
diff --git a/lib/ioremap.c b/lib/ioremap.c
index 4bb30206b9426..ac7802b0a117a 100644
--- a/lib/ioremap.c
+++ b/lib/ioremap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Re-map IO memory to kernel address space so that we can access it.
* This is needed for high PCI addresses that aren't mapped in the
diff --git a/lib/irq_poll.c b/lib/irq_poll.c
index 1d6565e810309..86a709954f5a5 100644
--- a/lib/irq_poll.c
+++ b/lib/irq_poll.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Functions related to interrupt-poll handling in the block layer. This
* is similar to NAPI for network devices.
diff --git a/lib/kasprintf.c b/lib/kasprintf.c
index 7f6c506a49422..bacf7b83ccf0e 100644
--- a/lib/kasprintf.c
+++ b/lib/kasprintf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* linux/lib/kasprintf.c
*
diff --git a/lib/kstrtox.c b/lib/kstrtox.c
index 720144075c1ea..661a1e807bd1a 100644
--- a/lib/kstrtox.c
+++ b/lib/kstrtox.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Convert integer string representation to an integer.
* If an integer doesn't fit into specified type, -E is returned.
diff --git a/lib/kstrtox.h b/lib/kstrtox.h
index f13eeeaf441db..3b4637bcd2540 100644
--- a/lib/kstrtox.h
+++ b/lib/kstrtox.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LIB_KSTRTOX_H
#define _LIB_KSTRTOX_H
diff --git a/lib/list_sort.c b/lib/list_sort.c
index 9e9acc37652f2..85759928215b4 100644
--- a/lib/list_sort.c
+++ b/lib/list_sort.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/kernel.h>
#include <linux/bug.h>
#include <linux/compiler.h>
diff --git a/lib/locking-selftest-hardirq.h b/lib/locking-selftest-hardirq.h
index 10d4a150b259c..0d144a6d6a96b 100644
--- a/lib/locking-selftest-hardirq.h
+++ b/lib/locking-selftest-hardirq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#undef IRQ_DISABLE
#undef IRQ_ENABLE
#undef IRQ_ENTER
diff --git a/lib/locking-selftest-mutex.h b/lib/locking-selftest-mutex.h
index 68601b6f584b8..7526c7746fb23 100644
--- a/lib/locking-selftest-mutex.h
+++ b/lib/locking-selftest-mutex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#undef LOCK
#define LOCK ML
diff --git a/lib/locking-selftest-rlock.h b/lib/locking-selftest-rlock.h
index 6789044f4d0ef..eccab18f5584a 100644
--- a/lib/locking-selftest-rlock.h
+++ b/lib/locking-selftest-rlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#undef LOCK
#define LOCK RL
diff --git a/lib/locking-selftest-rsem.h b/lib/locking-selftest-rsem.h
index 62da886680c7a..4544858f922e2 100644
--- a/lib/locking-selftest-rsem.h
+++ b/lib/locking-selftest-rsem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#undef LOCK
#define LOCK RSL
diff --git a/lib/locking-selftest-rtmutex.h b/lib/locking-selftest-rtmutex.h
index e3cb83989d16f..fce8714c4170e 100644
--- a/lib/locking-selftest-rtmutex.h
+++ b/lib/locking-selftest-rtmutex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#undef LOCK
#define LOCK RTL
diff --git a/lib/locking-selftest-softirq.h b/lib/locking-selftest-softirq.h
index a83de2a04ace7..6adde4867cb8d 100644
--- a/lib/locking-selftest-softirq.h
+++ b/lib/locking-selftest-softirq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#undef IRQ_DISABLE
#undef IRQ_ENABLE
#undef IRQ_ENTER
diff --git a/lib/locking-selftest-spin.h b/lib/locking-selftest-spin.h
index ccd1b4b097570..6b24d699e502e 100644
--- a/lib/locking-selftest-spin.h
+++ b/lib/locking-selftest-spin.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#undef LOCK
#define LOCK L
diff --git a/lib/locking-selftest-wlock.h b/lib/locking-selftest-wlock.h
index 0815322d99ed9..0bc51c8cf3c58 100644
--- a/lib/locking-selftest-wlock.h
+++ b/lib/locking-selftest-wlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#undef LOCK
#define LOCK WL
diff --git a/lib/locking-selftest-wsem.h b/lib/locking-selftest-wsem.h
index b88c5f2dc5f00..5ef18f931c9bc 100644
--- a/lib/locking-selftest-wsem.h
+++ b/lib/locking-selftest-wsem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#undef LOCK
#define LOCK WSL
diff --git a/lib/locking-selftest.c b/lib/locking-selftest.c
index 2b827b8a1d8c9..b5c1293ce1474 100644
--- a/lib/locking-selftest.c
+++ b/lib/locking-selftest.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* lib/locking-selftest.c
*
diff --git a/lib/lockref.c b/lib/lockref.c
index c4bfcb8836cdd..47169ed7e964f 100644
--- a/lib/lockref.c
+++ b/lib/lockref.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/export.h>
#include <linux/lockref.h>
diff --git a/lib/lzo/lzodefs.h b/lib/lzo/lzodefs.h
index 6710b83ce72ed..4edefd2f540c5 100644
--- a/lib/lzo/lzodefs.h
+++ b/lib/lzo/lzodefs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* lzodefs.h -- architecture, OS and compiler specific defines
*
diff --git a/lib/memweight.c b/lib/memweight.c
index e35fc87718930..94dd72ccaa7f8 100644
--- a/lib/memweight.c
+++ b/lib/memweight.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/export.h>
#include <linux/bug.h>
#include <linux/bitmap.h>
diff --git a/lib/mpi/Makefile b/lib/mpi/Makefile
index 019a68c901442..d5874a7f5ff97 100644
--- a/lib/mpi/Makefile
+++ b/lib/mpi/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
#
# MPI multiprecision maths library (from gpg)
#
diff --git a/lib/net_utils.c b/lib/net_utils.c
index 148fc6e99ef63..af525353395d6 100644
--- a/lib/net_utils.c
+++ b/lib/net_utils.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/string.h>
#include <linux/if_ether.h>
#include <linux/ctype.h>
diff --git a/lib/nlattr.c b/lib/nlattr.c
index 927c2f19f119e..3d8295c855053 100644
--- a/lib/nlattr.c
+++ b/lib/nlattr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* NETLINK Netlink attributes
*
diff --git a/lib/nmi_backtrace.c b/lib/nmi_backtrace.c
index 0bc0a3535a8ac..46e4c749e4eba 100644
--- a/lib/nmi_backtrace.c
+++ b/lib/nmi_backtrace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* NMI backtrace support
*
diff --git a/lib/nodemask.c b/lib/nodemask.c
index e42a5bf44d330..3aa454c54c0de 100644
--- a/lib/nodemask.c
+++ b/lib/nodemask.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/nodemask.h>
#include <linux/module.h>
#include <linux/random.h>
diff --git a/lib/notifier-error-inject.h b/lib/notifier-error-inject.h
index 99b3b6fc470b6..fafff5f2ac45b 100644
--- a/lib/notifier-error-inject.h
+++ b/lib/notifier-error-inject.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#include <linux/atomic.h>
#include <linux/debugfs.h>
#include <linux/notifier.h>
diff --git a/lib/once.c b/lib/once.c
index 05c8604627eb0..bfb7420d0de33 100644
--- a/lib/once.c
+++ b/lib/once.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/once.h>
diff --git a/lib/percpu_counter.c b/lib/percpu_counter.c
index 3bf4a9984f4cb..c72577e472f2f 100644
--- a/lib/percpu_counter.c
+++ b/lib/percpu_counter.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Fast batching percpu counters.
*/
diff --git a/lib/raid6/Makefile b/lib/raid6/Makefile
index a93adf6dcfb27..4add700ddfe32 100644
--- a/lib/raid6/Makefile
+++ b/lib/raid6/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
obj-$(CONFIG_RAID6_PQ) += raid6_pq.o
raid6_pq-y += algos.o recov.o tables.o int1.o int2.o int4.o \
diff --git a/lib/raid6/recov_s390xc.c b/lib/raid6/recov_s390xc.c
index b042dac826ccf..179eec900cea4 100644
--- a/lib/raid6/recov_s390xc.c
+++ b/lib/raid6/recov_s390xc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* RAID-6 data recovery in dual failure mode based on the XC instruction.
*
diff --git a/lib/raid6/s390vx.uc b/lib/raid6/s390vx.uc
index 7b45191a655f6..140fa8bb5c235 100644
--- a/lib/raid6/s390vx.uc
+++ b/lib/raid6/s390vx.uc
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* raid6_vx$#.c
*
diff --git a/lib/raid6/test/Makefile b/lib/raid6/test/Makefile
index 2c7b60edea049..be1010bdc4358 100644
--- a/lib/raid6/test/Makefile
+++ b/lib/raid6/test/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
#
# This is a simple Makefile to test some of the RAID-6 code
# from userspace.
diff --git a/lib/random32.c b/lib/random32.c
index fa594b1140e64..0a90cb0e0fb65 100644
--- a/lib/random32.c
+++ b/lib/random32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* This is a maximally equidistributed combined Tausworthe generator
* based on code from GNU Scientific Library 1.5 (30 Jun 2004)
diff --git a/lib/rational.c b/lib/rational.c
index f0aa21c2a7624..ba7443677c905 100644
--- a/lib/rational.c
+++ b/lib/rational.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* rational fractions
*
diff --git a/lib/reciprocal_div.c b/lib/reciprocal_div.c
index 464152410c512..fcb4ce682c6fa 100644
--- a/lib/reciprocal_div.c
+++ b/lib/reciprocal_div.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/kernel.h>
#include <asm/div64.h>
#include <linux/reciprocal_div.h>
diff --git a/lib/refcount.c b/lib/refcount.c
index 5d0582a9480c6..0eb48353abe30 100644
--- a/lib/refcount.c
+++ b/lib/refcount.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Variant of atomic_t specialized for reference counts.
*
diff --git a/lib/seq_buf.c b/lib/seq_buf.c
index cb18469e1f490..11f2ae0f90996 100644
--- a/lib/seq_buf.c
+++ b/lib/seq_buf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* seq_buf.c
*
diff --git a/lib/sha1.c b/lib/sha1.c
index 5a56dfd7b99de..1d96d2c02b826 100644
--- a/lib/sha1.c
+++ b/lib/sha1.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* SHA1 routine optimized to do word accesses rather than byte accesses,
* and to avoid unnecessary copies into the context array.
diff --git a/lib/smp_processor_id.c b/lib/smp_processor_id.c
index 2fb007be02125..835cc6df27764 100644
--- a/lib/smp_processor_id.c
+++ b/lib/smp_processor_id.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* lib/smp_processor_id.c
*
diff --git a/lib/sort.c b/lib/sort.c
index 975c6ef6fec75..d6b7a202b0b64 100644
--- a/lib/sort.c
+++ b/lib/sort.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* A fast, small, non-recursive O(nlog n) sort for the Linux kernel
*
diff --git a/lib/string.c b/lib/string.c
index 9921dc202db44..5e8d410a93df5 100644
--- a/lib/string.c
+++ b/lib/string.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* linux/lib/string.c
*
diff --git a/lib/strncpy_from_user.c b/lib/strncpy_from_user.c
index 7e35fc450c5bb..b53e1b5d80f42 100644
--- a/lib/strncpy_from_user.c
+++ b/lib/strncpy_from_user.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/compiler.h>
#include <linux/export.h>
#include <linux/kasan-checks.h>
diff --git a/lib/strnlen_user.c b/lib/strnlen_user.c
index a5f567747ceda..60d0bbda8f5e5 100644
--- a/lib/strnlen_user.c
+++ b/lib/strnlen_user.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/kernel.h>
#include <linux/export.h>
#include <linux/uaccess.h>
diff --git a/lib/syscall.c b/lib/syscall.c
index 2c6cd1b5c3ea8..1a7077f20eae4 100644
--- a/lib/syscall.c
+++ b/lib/syscall.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/ptrace.h>
#include <linux/sched.h>
#include <linux/sched/task_stack.h>
diff --git a/lib/ubsan.h b/lib/ubsan.h
index b2d18d4a53f5a..88f23557edbe1 100644
--- a/lib/ubsan.h
+++ b/lib/ubsan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LIB_UBSAN_H
#define _LIB_UBSAN_H
diff --git a/lib/ucs2_string.c b/lib/ucs2_string.c
index ae8d2491133c9..d7e06b28de382 100644
--- a/lib/ucs2_string.c
+++ b/lib/ucs2_string.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/ucs2_string.h>
#include <linux/module.h>
diff --git a/lib/usercopy.c b/lib/usercopy.c
index f5d9f08ee032f..15e2e6fb060ef 100644
--- a/lib/usercopy.c
+++ b/lib/usercopy.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/uaccess.h>
/* out-of-line parts */
diff --git a/lib/win_minmax.c b/lib/win_minmax.c
index c8420d404926d..6bdc1cd15f761 100644
--- a/lib/win_minmax.c
+++ b/lib/win_minmax.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/**
* lib/minmax.c: windowed min/max tracker
*