SPDX: Convert all of our single license tags to Linux Kernel style

When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>

24 files changed, 24 insertions, 62 deletions

diff --git a/scripts/Makefile b/scripts/Makefile
index 9d55241463d..e27308a97a5 100644
--- a/scripts/Makefile
+++ b/scripts/Makefile
@@ -1,11 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
 ###
 # scripts contains sources for various helper programs used throughout
 # the kernel for the build process.
 # ---------------------------------------------------------------------------
 # docproc:       Used in Documentation/DocBook
-#
-# SPDX-License-Identifier:	GPL-2.0
-#
 
 hostprogs-$(CONFIG_BUILD_BIN2C)		+= bin2c
 
diff --git a/scripts/Makefile.autoconf b/scripts/Makefile.autoconf
index 2a967ff6f33..00b8fb34aa7 100644
--- a/scripts/Makefile.autoconf
+++ b/scripts/Makefile.autoconf
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # This helper makefile is used for creating
 #  - symbolic links (arch/$ARCH/include/asm/arch
 #  - include/autoconf.mk, {spl,tpl}/include/autoconf.mk
@@ -6,9 +7,6 @@
 # When our migration to Kconfig is done
 # (= When we move all CONFIGs from header files to Kconfig)
 # this makefile can be deleted.
-#
-# SPDX-License-Identifier:	GPL-2.0
-#
 
 __all: include/autoconf.mk include/autoconf.mk.dep
 
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 06e5c203c1f..4a6ed345928 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -1,9 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0
 # ==========================================================================
 # Building
 # ==========================================================================
-#
-# SPDX-License-Identifier:	GPL-2.0
-#
 
 # Modified for U-Boot
 prefix := tpl
diff --git a/scripts/Makefile.clean b/scripts/Makefile.clean
index b69533df806..4cc468d24ea 100644
--- a/scripts/Makefile.clean
+++ b/scripts/Makefile.clean
@@ -1,9 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0
 # ==========================================================================
 # Cleaning up
 # ==========================================================================
-#
-# SPDX-License-Identifier:	GPL-2.0
-#
 
 src := $(obj)
 
diff --git a/scripts/Makefile.extrawarn b/scripts/Makefile.extrawarn
index 1d3a5705946..7ed520f5550 100644
--- a/scripts/Makefile.extrawarn
+++ b/scripts/Makefile.extrawarn
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # ==========================================================================
 #
 # make W=... settings
@@ -9,9 +10,6 @@
 # $(call cc-option, -W...) handles gcc -W.. options which
 # are not supported by all versions of the compiler
 # ==========================================================================
-#
-# SPDX-License-Identifier:	GPL-2.0
-#
 
 ifeq ("$(origin W)", "command line")
   export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W)
diff --git a/scripts/Makefile.host b/scripts/Makefile.host
index 763a699c4ce..e3379a3c51a 100644
--- a/scripts/Makefile.host
+++ b/scripts/Makefile.host
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # ==========================================================================
 # Building binaries on the host system
 # Binaries are used during the compilation of the kernel, for example
@@ -19,9 +20,6 @@
 # qconf-objs      := menu.o
 # Will compile qconf as a C++ program, and menu as a C program.
 # They are linked as C++ code to the executable qconf
-#
-# SPDX-License-Identifier:	GPL-2.0
-#
 
 __hostprogs := $(sort $(hostprogs-y) $(hostprogs-m))
 
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index c6b3f690649..f9809ce7cef 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -1,6 +1,4 @@
-#
-# SPDX-License-Identifier:	GPL-2.0
-#
+# SPDX-License-Identifier: GPL-2.0
 # Backward compatibility
 asflags-y  += $(EXTRA_AFLAGS)
 ccflags-y  += $(EXTRA_CFLAGS)
diff --git a/scripts/Makefile.spl b/scripts/Makefile.spl
index 7f2908d7997..09e7cef96ed 100644
--- a/scripts/Makefile.spl
+++ b/scripts/Makefile.spl
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # (C) Copyright 2000-2011
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
@@ -8,9 +9,6 @@
 # (C) Copyright 2011
 # Texas Instruments Incorporated - http://www.ti.com/
 # Aneesh V <aneesh@ti.com>
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 # Based on top-level Makefile.
 #
 
diff --git a/scripts/Makefile.uncmd_spl b/scripts/Makefile.uncmd_spl
index b3994110dc7..ba267d9ac6e 100644
--- a/scripts/Makefile.uncmd_spl
+++ b/scripts/Makefile.uncmd_spl
@@ -1,7 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0+
 # Makefile version of include/config_uncmd_spl.h
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 # TODO: Invent a better way
 
 ifdef CONFIG_SPL_BUILD
diff --git a/scripts/basic/Makefile b/scripts/basic/Makefile
index f883857b543..092a8876d60 100644
--- a/scripts/basic/Makefile
+++ b/scripts/basic/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ###
 # Makefile.basic lists the most basic programs used during the build process.
 # The programs listed herein are what are needed to do the basic stuff,
@@ -7,9 +8,6 @@
 # .config is included by main Makefile.
 # ---------------------------------------------------------------------------
 # fixdep: 	 Used to generate dependency information during build process
-#
-# SPDX-License-Identifier:	GPL-2.0
-#
 
 hostprogs-y	:= fixdep
 always		:= $(hostprogs-y)
diff --git a/scripts/coreboot.sed b/scripts/coreboot.sed
index 42e1f3aea7e..0cbb5fc9b39 100644
--- a/scripts/coreboot.sed
+++ b/scripts/coreboot.sed
@@ -1,8 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # Copyright (c) 2016 Google, Inc
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 # Script to convert coreboot code to something similar to what U-Boot uses
 # sed -f coreboot.sed <coreboot_file.c>
 # Remember to add attribution to coreboot for new files added to U-Boot.
diff --git a/scripts/fill_scrapyard.py b/scripts/fill_scrapyard.py
index 9a943549416..55a7f382cf4 100755
--- a/scripts/fill_scrapyard.py
+++ b/scripts/fill_scrapyard.py
@@ -1,9 +1,8 @@
 #!/usr/bin/env python2
+# SPDX-License-Identifier: GPL-2.0+
 #
 # Author: Masahiro Yamada <yamada.m@jp.panasonic.com>
 #
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 """
 Fill the "Commit" and "Removed" fields of doc/README.scrapyard
diff --git a/scripts/gcc-stack-usage.sh b/scripts/gcc-stack-usage.sh
index 27ac9289695..3db32e35f68 100755
--- a/scripts/gcc-stack-usage.sh
+++ b/scripts/gcc-stack-usage.sh
@@ -1,9 +1,8 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0+
 # Test for gcc '-fstack-usage' support
 # Copyright (C) 2013, Masahiro Yamada <yamada.m@jp.panasonic.com>
 #
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 TMP="$$"
 
diff --git a/scripts/get_default_envs.sh b/scripts/get_default_envs.sh
index 184cc19ab77..28726533128 100755
--- a/scripts/get_default_envs.sh
+++ b/scripts/get_default_envs.sh
@@ -1,9 +1,8 @@
 #! /bin/bash
+# SPDX-License-Identifier: GPL-2.0+
 #
 # Copyright (C) 2016, Lukasz Majewski <l.majewski@majess.pl>
 #
-# SPDX-License-Identifier:      GPL-2.0+
-#
 
 # This file extracts default envs from built u-boot
 # usage: get_default_envs.sh [build dir] > u-boot-env-default.txt
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index af238126113..2542b38af36 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -1,9 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0
 # ===========================================================================
 # Kernel configuration targets
 # These targets are used from top-level makefile
-#
-# SPDX-License-Identifier:	GPL-2.0
-#
 
 PHONY += xconfig gconfig menuconfig config silentoldconfig update-po-config \
 	localmodconfig localyesconfig
diff --git a/scripts/kconfig/lxdialog/checklist.c b/scripts/kconfig/lxdialog/checklist.c
index 09938ae63a2..fc0b12bbccb 100644
--- a/scripts/kconfig/lxdialog/checklist.c
+++ b/scripts/kconfig/lxdialog/checklist.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  checklist.c -- implements the checklist box
  *
@@ -5,8 +6,6 @@
  *     Stuart Herbert - S.Herbert@sheffield.ac.uk: radiolist extension
  *     Alessandro Rubini - rubini@ipvvis.unipv.it: merged the two
  *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include "dialog.h"
diff --git a/scripts/kconfig/lxdialog/dialog.h b/scripts/kconfig/lxdialog/dialog.h
index cff73a6c6e1..b1617ffbe70 100644
--- a/scripts/kconfig/lxdialog/dialog.h
+++ b/scripts/kconfig/lxdialog/dialog.h
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  *  dialog.h -- common declarations for all dialog modules
  *
  *  AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <sys/types.h>
diff --git a/scripts/kconfig/lxdialog/inputbox.c b/scripts/kconfig/lxdialog/inputbox.c
index f8b7ef784bb..edeb094dbad 100644
--- a/scripts/kconfig/lxdialog/inputbox.c
+++ b/scripts/kconfig/lxdialog/inputbox.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  inputbox.c -- implements the input box
  *
  *  ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
  *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include "dialog.h"
diff --git a/scripts/kconfig/lxdialog/menubox.c b/scripts/kconfig/lxdialog/menubox.c
index 99f923ee922..0ef23192c2d 100644
--- a/scripts/kconfig/lxdialog/menubox.c
+++ b/scripts/kconfig/lxdialog/menubox.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  menubox.c -- implements the menu box
  *
  *  ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
  *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcapw@cfw.com)
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 /*
diff --git a/scripts/kconfig/lxdialog/textbox.c b/scripts/kconfig/lxdialog/textbox.c
index d3ad43fd955..ab34000d9b9 100644
--- a/scripts/kconfig/lxdialog/textbox.c
+++ b/scripts/kconfig/lxdialog/textbox.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  textbox.c -- implements the text box
  *
  *  ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
  *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include "dialog.h"
diff --git a/scripts/kconfig/lxdialog/util.c b/scripts/kconfig/lxdialog/util.c
index a6dec283281..1b490d4af0d 100644
--- a/scripts/kconfig/lxdialog/util.c
+++ b/scripts/kconfig/lxdialog/util.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  util.c
  *
  *  ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
  *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <stdarg.h>
diff --git a/scripts/kconfig/lxdialog/yesno.c b/scripts/kconfig/lxdialog/yesno.c
index a732e24712d..274341d0204 100644
--- a/scripts/kconfig/lxdialog/yesno.c
+++ b/scripts/kconfig/lxdialog/yesno.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  yesno.c -- implements the yes/no box
  *
  *  ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
  *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include "dialog.h"
diff --git a/scripts/mailmapper b/scripts/mailmapper
index 78b23d152d9..f73f3dc1787 100755
--- a/scripts/mailmapper
+++ b/scripts/mailmapper
@@ -1,9 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0+
 #!/usr/bin/env python2
 #
 # Copyright (C) 2014, Masahiro Yamada <yamada.m@jp.panasonic.com>
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 '''
 A tool to create/update the mailmap file
diff --git a/scripts/show-gnu-make b/scripts/show-gnu-make
index 26271b59b93..90a5f3862b4 100755
--- a/scripts/show-gnu-make
+++ b/scripts/show-gnu-make
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0+
 #
 # Show the command name for GNU Make
 #
@@ -8,9 +9,6 @@
 # It is not a good idea to hard-code the command name in scripts
 # where where GNU Make is expected.
 # Call this helper script to get the command name for GNU Make.
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 gnu_make=