treewide: add SPDX-License-Identifier for files without explicit license

Record GPL-2.0-only as license for all files lacking an explicit license
statement.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20220103120539.1730644-12-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

35 files changed, 66 insertions, 0 deletions

diff --git a/lib/bcd.c b/lib/bcd.c
index b072d50a90..4bed6eddfe 100644
--- a/lib/bcd.c
+++ b/lib/bcd.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
 #include <linux/bcd.h>
 #include <module.h>
 
diff --git a/lib/fdt.c b/lib/fdt.c
index 97f20069fc..c83f9b94d2 100644
--- a/lib/fdt.c
+++ b/lib/fdt.c
@@ -1,2 +1,3 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 #include <linux/libfdt_env.h>
 #include "../scripts/dtc/libfdt/fdt.c"
diff --git a/lib/fdt_empty_tree.c b/lib/fdt_empty_tree.c
index 5d30c58150..794fcb6cac 100644
--- a/lib/fdt_empty_tree.c
+++ b/lib/fdt_empty_tree.c
@@ -1,2 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
 #include <linux/libfdt_env.h>
 #include "../scripts/dtc/libfdt/fdt_empty_tree.c"
diff --git a/lib/fdt_ro.c b/lib/fdt_ro.c
index f73c04ea7b..b4bab9618e 100644
--- a/lib/fdt_ro.c
+++ b/lib/fdt_ro.c
@@ -1,2 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
 #include <linux/libfdt_env.h>
 #include "../scripts/dtc/libfdt/fdt_ro.c"
diff --git a/lib/fdt_rw.c b/lib/fdt_rw.c
index 0c1f0f4a4b..72b5df529d 100644
--- a/lib/fdt_rw.c
+++ b/lib/fdt_rw.c
@@ -1,2 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
 #include <linux/libfdt_env.h>
 #include "../scripts/dtc/libfdt/fdt_rw.c"
diff --git a/lib/fdt_strerror.c b/lib/fdt_strerror.c
index 8713e3ff47..25883d28d9 100644
--- a/lib/fdt_strerror.c
+++ b/lib/fdt_strerror.c
@@ -1,2 +1,3 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 #include <linux/libfdt_env.h>
 #include "../scripts/dtc/libfdt/fdt_strerror.c"
diff --git a/lib/fdt_sw.c b/lib/fdt_sw.c
index 9ac7e50c76..3f8e3397a9 100644
--- a/lib/fdt_sw.c
+++ b/lib/fdt_sw.c
@@ -1,2 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
 #include <linux/libfdt_env.h>
 #include "../scripts/dtc/libfdt/fdt_sw.c"
diff --git a/lib/fdt_wip.c b/lib/fdt_wip.c
index 45b3fc3d3b..da120b6dc9 100644
--- a/lib/fdt_wip.c
+++ b/lib/fdt_wip.c
@@ -1,2 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
 #include <linux/libfdt_env.h>
 #include "../scripts/dtc/libfdt/fdt_wip.c"
diff --git a/lib/fonts/font_6x8.c b/lib/fonts/font_6x8.c
index a5efeee616..2b9061cbd0 100644
--- a/lib/fonts/font_6x8.c
+++ b/lib/fonts/font_6x8.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
 #include <init.h>
 #include <linux/font.h>
 
diff --git a/lib/fonts/font_7x14.c b/lib/fonts/font_7x14.c
index e5ef8323ca..13b3897d8c 100644
--- a/lib/fonts/font_7x14.c
+++ b/lib/fonts/font_7x14.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
 /**************************************/
 /* 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 e6d40d0de3..dbebf07e27 100644
--- a/lib/fonts/font_8x16.c
+++ b/lib/fonts/font_8x16.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
 /**********************************************/
 /*                                            */
 /*       Font file generated by cpi2fnt       */
diff --git a/lib/fonts/font_8x8.c b/lib/fonts/font_8x8.c
index 27d53de578..40f1112427 100644
--- a/lib/fonts/font_8x8.c
+++ b/lib/fonts/font_8x8.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
 /**********************************************/
 /*                                            */
 /*       Font file generated by cpi2fnt       */
diff --git a/lib/fonts/font_custom_16x.c b/lib/fonts/font_custom_16x.c
index 2666e1f6d6..eb21a81360 100644
--- a/lib/fonts/font_custom_16x.c
+++ b/lib/fonts/font_custom_16x.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
 /*
  * by Du Huanpeng <u74147@gmail.com>
  */
diff --git a/lib/fonts/font_mini_4x6.c b/lib/fonts/font_mini_4x6.c
index 4a1de138a9..560a3e1c3a 100644
--- a/lib/fonts/font_mini_4x6.c
+++ b/lib/fonts/font_mini_4x6.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
 
 /* Hand composed "Minuscule" 4x6 font, with binary data generated using
  * Perl stub.
diff --git a/lib/gcd.c b/lib/gcd.c
index 86bdba9112..d895c1f12d 100644
--- a/lib/gcd.c
+++ b/lib/gcd.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
 #include <linux/gcd.h>
 
 /* Greatest common divisor */
diff --git a/lib/gui/2d-primitives.c b/lib/gui/2d-primitives.c
index 940e82b7d4..55dc1b1dda 100644
--- a/lib/gui/2d-primitives.c
+++ b/lib/gui/2d-primitives.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
 #include <common.h>
 #include <fb.h>
 #include <gui/graphic_utils.h>
diff --git a/lib/gui/bmp.c b/lib/gui/bmp.c
index 8bffc70a42..bbc623dba3 100644
--- a/lib/gui/bmp.c
+++ b/lib/gui/bmp.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
 #include <common.h>
 #include <errno.h>
 #include <malloc.h>
diff --git a/lib/gui/graphic_utils.c b/lib/gui/graphic_utils.c
index 0bed932213..92f249e722 100644
--- a/lib/gui/graphic_utils.c
+++ b/lib/gui/graphic_utils.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
 #include <common.h>
 #include <fb.h>
 #include <gui/graphic_utils.h>
diff --git a/lib/gui/picopng.h b/lib/gui/picopng.h
index 14c5e28bcc..a17dd14b0c 100644
--- a/lib/gui/picopng.h
+++ b/lib/gui/picopng.h
@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
 #ifndef _PICOPNG_H
 #define _PICOPNG_H
 
diff --git a/lib/gui/png.c b/lib/gui/png.c
index 6bf997c29a..01833485ce 100644
--- a/lib/gui/png.c
+++ b/lib/gui/png.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
 #include <common.h>
 #include <errno.h>
 #include <malloc.h>
diff --git a/lib/gui/png_lode.c b/lib/gui/png_lode.c
index e30db0f853..68149c848d 100644
--- a/lib/gui/png_lode.c
+++ b/lib/gui/png_lode.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
 #include <common.h>
 #include <errno.h>
 #include <malloc.h>
diff --git a/lib/gui/png_pico.c b/lib/gui/png_pico.c
index 256db35ce0..029fee2a40 100644
--- a/lib/gui/png_pico.c
+++ b/lib/gui/png_pico.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
 #include <common.h>
 #include <errno.h>
 #include <malloc.h>
diff --git a/lib/list_sort.c b/lib/list_sort.c
index f5122b2592..77ddadb3d6 100644
--- a/lib/list_sort.c
+++ b/lib/list_sort.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
 #ifndef __BAREBOX__
 #include <linux/kernel.h>
 #define EXPORT_SYMBOL(x)
diff --git a/lib/make_directory.c b/lib/make_directory.c
index 29d08cf536..7db93ded88 100644
--- a/lib/make_directory.c
+++ b/lib/make_directory.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 
 #include <string.h>
 #include <errno.h>
diff --git a/lib/nls_base.c b/lib/nls_base.c
index cd6a5ff124..5def1411f9 100644
--- a/lib/nls_base.c
+++ b/lib/nls_base.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
 /*
  * linux/fs/nls/nls_base.c
  *
diff --git a/lib/notifier.c b/lib/notifier.c
index 9eb734e504..c55ec22f94 100644
--- a/lib/notifier.c
+++ b/lib/notifier.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
 #include <common.h>
 #include <linux/list.h>
 #include <notifier.h>
diff --git a/lib/parseopt.c b/lib/parseopt.c
index 70983066d9..6724624b7a 100644
--- a/lib/parseopt.c
+++ b/lib/parseopt.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
 #include <common.h>
 
 #include "parseopt.h"
diff --git a/lib/random.c b/lib/random.c
index 759271f0c8..fb3580f9c0 100644
--- a/lib/random.c
+++ b/lib/random.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
 #include <common.h>
 #include <stdlib.h>
 #include <linux/hw_random.h>
diff --git a/lib/readline.c b/lib/readline.c
index 25aa99b95e..37d5b0a343 100644
--- a/lib/readline.c
+++ b/lib/readline.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
 #include <common.h>
 #include <readkey.h>
 #include <init.h>
diff --git a/lib/readline_simple.c b/lib/readline_simple.c
index 2e52bfc2a0..7a8df95494 100644
--- a/lib/readline_simple.c
+++ b/lib/readline_simple.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
 #include <common.h>
 
 static char erase_seq[] = "\b \b";		/* erase sequence	*/
diff --git a/lib/string.c b/lib/string.c
index 9aeb1d8830..6389217d5b 100644
--- a/lib/string.c
+++ b/lib/string.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  linux/lib/string.c
  *
diff --git a/lib/stringlist.c b/lib/stringlist.c
index fc86640b94..bb2ba54a6c 100644
--- a/lib/stringlist.c
+++ b/lib/stringlist.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
 #include <common.h>
 #include <xfuncs.h>
 #include <malloc.h>
diff --git a/lib/strtox.c b/lib/strtox.c
index a5b770c8ca..76927743a7 100644
--- a/lib/strtox.c
+++ b/lib/strtox.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
 #include <common.h>
 #include <linux/ctype.h>
 
diff --git a/lib/unlink-recursive.c b/lib/unlink-recursive.c
index f28c6dae5b..398e43693b 100644
--- a/lib/unlink-recursive.c
+++ b/lib/unlink-recursive.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
 #include <common.h>
 #include <libfile.h>
 #include <errno.h>
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 9a94a1bbe8..693f3c0cc0 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
 /*
  *  linux/lib/vsprintf.c
  *