treewide: add SPDX-License-Identifier for Kbuild/Kconfig

To verify only Kconfig/Makefile is touched:

  git show --numstat --format=oneline HEAD | grep -v 'Kconfig\|Makefile'

will print only arch/powerpc/Kbuild.
To verify nothing unexpected is added:

  git show -U0 | grep '^-[^-]\|^+[^+]' | sort -u

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20220103120539.1730644-3-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

20 files changed, 38 insertions, 0 deletions

diff --git a/lib/Kconfig b/lib/Kconfig
index 915ae7a287..a0f28b935c 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
 menu "Library routines"
 config PARAMETER
 	bool
diff --git a/lib/Makefile b/lib/Makefile
index 9b37d847e0..3f6653d74e 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
 obj-y			+= bcd.o
 obj-$(CONFIG_BOOTSTRAP)	+= bootstrap/
 obj-pbl-y		+= ctype.o
diff --git a/lib/bootstrap/Kconfig b/lib/bootstrap/Kconfig
index 645f0b4b78..5cd6035bee 100644
--- a/lib/bootstrap/Kconfig
+++ b/lib/bootstrap/Kconfig
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
 menuconfig BOOTSTRAP
 	bool "Library bootstrap routines"
 	depends on SHELL_NONE
diff --git a/lib/bootstrap/Makefile b/lib/bootstrap/Makefile
index cbaa49f9d9..295d63e074 100644
--- a/lib/bootstrap/Makefile
+++ b/lib/bootstrap/Makefile
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
 obj-y				+= common.o
 obj-$(CONFIG_BOOTSTRAP_DEVFS)	+= devfs.o
 obj-$(CONFIG_BOOTSTRAP_DISK)	+= disk.o
diff --git a/lib/fonts/Kconfig b/lib/fonts/Kconfig
index e1a736d137..3201364cae 100644
--- a/lib/fonts/Kconfig
+++ b/lib/fonts/Kconfig
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
 #
 # Font configuration
 #
diff --git a/lib/fonts/Makefile b/lib/fonts/Makefile
index 394e2c5e4c..1eae8ee67b 100644
--- a/lib/fonts/Makefile
+++ b/lib/fonts/Makefile
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
 # Font handling
 
 font-objs := fonts.o
diff --git a/lib/gui/Kconfig b/lib/gui/Kconfig
index 2625d9fb2f..d102604335 100644
--- a/lib/gui/Kconfig
+++ b/lib/gui/Kconfig
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
 menu "Library gui routines"
 
 config IMAGE_RENDERER
diff --git a/lib/gui/Makefile b/lib/gui/Makefile
index 31e66225d7..59caa8fbeb 100644
--- a/lib/gui/Makefile
+++ b/lib/gui/Makefile
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
 obj-$(CONFIG_BMP)	+= bmp.o
 obj-$(CONFIG_IMAGE_RENDERER)	+= image_renderer.o graphic_utils.o
 obj-$(CONFIG_PNG)	+= png.o
diff --git a/lib/kasan/Kconfig b/lib/kasan/Kconfig
index 7a18cf95be..46fc4f263b 100644
--- a/lib/kasan/Kconfig
+++ b/lib/kasan/Kconfig
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
 source "scripts/Kconfig.include"
 
 config HAVE_ARCH_KASAN
diff --git a/lib/kasan/Makefile b/lib/kasan/Makefile
index 31e9d890d5..e3f4bb61f9 100644
--- a/lib/kasan/Makefile
+++ b/lib/kasan/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 
 obj-y += generic_report.o generic.o report.o common.o test_kasan.o
 KASAN_SANITIZE_generic_report.o := n
diff --git a/lib/logo/Kconfig b/lib/logo/Kconfig
index 7d55f7fa27..56ec76afb6 100644
--- a/lib/logo/Kconfig
+++ b/lib/logo/Kconfig
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
 menuconfig BAREBOX_LOGO
 	bool "include barebox logos in build"
 	help
diff --git a/lib/logo/Makefile b/lib/logo/Makefile
index f08beef76b..3e36cf911f 100644
--- a/lib/logo/Makefile
+++ b/lib/logo/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 
 OPTS_barebox-logo-w64.bblogo = -resize 64
 bblogo-$(CONFIG_BAREBOX_LOGO_64) += barebox-logo-w64
diff --git a/lib/lz4/Makefile b/lib/lz4/Makefile
index 7f548c6d1c..7156ec9145 100644
--- a/lib/lz4/Makefile
+++ b/lib/lz4/Makefile
@@ -1 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
 obj-$(CONFIG_LZ4_DECOMPRESS) += lz4_decompress.o
diff --git a/lib/lzo/Kconfig b/lib/lzo/Kconfig
index 17b0083236..2ead1321e8 100644
--- a/lib/lzo/Kconfig
+++ b/lib/lzo/Kconfig
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
 config LZO_DECOMPRESS
 	bool "include lzo uncompression support"
 	select UNCOMPRESS
diff --git a/lib/lzo/Makefile b/lib/lzo/Makefile
index 0e576a1c10..4ab28ff6f5 100644
--- a/lib/lzo/Makefile
+++ b/lib/lzo/Makefile
@@ -1 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
 obj-$(CONFIG_LZO_DECOMPRESS) += lzo1x_decompress_safe.o
diff --git a/lib/math/Makefile b/lib/math/Makefile
index 756d7dd90d..2830dedb2f 100644
--- a/lib/math/Makefile
+++ b/lib/math/Makefile
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
 obj-y += div64.o
 pbl-y += div64.o
 obj-y += rational.o
diff --git a/lib/reed_solomon/Makefile b/lib/reed_solomon/Makefile
index c3d7136827..f7475981b9 100644
--- a/lib/reed_solomon/Makefile
+++ b/lib/reed_solomon/Makefile
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
 #
 # This is a modified version of reed solomon lib,
 #
diff --git a/lib/xz/Makefile b/lib/xz/Makefile
index 86ba550733..23581d2d8c 100644
--- a/lib/xz/Makefile
+++ b/lib/xz/Makefile
@@ -1,2 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
 obj-$(CONFIG_XZ_DECOMPRESS) += xz_crc32.o xz_dec_bcj.o
 obj-$(CONFIG_XZ_DECOMPRESS) += xz_dec_lzma2.o xz_dec_stream.o
diff --git a/lib/zlib_inflate/Makefile b/lib/zlib_inflate/Makefile
index 8e95fcd3c9..bfe12b0d6e 100644
--- a/lib/zlib_inflate/Makefile
+++ b/lib/zlib_inflate/Makefile
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
 #
 # This is a modified version of zlib, which does all memory
 # allocation ahead of time.
diff --git a/lib/zstd/Makefile b/lib/zstd/Makefile
index 0c4f56c50c..4e8689a485 100644
--- a/lib/zstd/Makefile
+++ b/lib/zstd/Makefile
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
 obj-$(CONFIG_ZSTD_DECOMPRESS) += zstd_decompress.o
 
 ccflags-y += -O3