24 files changed, 104 insertions, 42 deletions
diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index a675ce11a573..e2de6c4dce90 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -138,11 +138,6 @@ cc-disable-warning = $(call try-run,\
 # Usage:  EXTRA_CFLAGS += $(call cc-ifversion, -lt, 0402, -O1)
 cc-ifversion = $(shell [ $(CONFIG_GCC_VERSION)0 $(1) $(2)000 ] && echo $(3) || echo $(4))
 
-# cc-ldoption
-# Usage: ldflags += $(call cc-ldoption, -Wl$(comma)--hash-style=both)
-cc-ldoption = $(call try-run,\
-	$(CC) $(1) $(KBUILD_CPPFLAGS) $(CC_OPTION_CFLAGS) -nostdlib -x c /dev/null -o "$$TMP",$(1),$(2))
-
 # ld-option
 # Usage: KBUILD_LDFLAGS += $(call ld-option, -X, -Y)
 ld-option = $(call try-run, $(LD) $(KBUILD_LDFLAGS) $(1) -v,$(1),$(2),$(3))
diff --git a/scripts/Kconfig.include b/scripts/Kconfig.include
index 0b267fb27f07..8a5c4d645eb1 100644
--- a/scripts/Kconfig.include
+++ b/scripts/Kconfig.include
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 # Kconfig helper macros
 
 # Convenient variables
diff --git a/scripts/Makefile.kcov b/scripts/Makefile.kcov
index 3d61c4bfcbee..52b113302443 100644
--- a/scripts/Makefile.kcov
+++ b/scripts/Makefile.kcov
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 ifdef CONFIG_KCOV
 
 kcov-flags-$(CONFIG_CC_HAS_SANCOV_TRACE_PC)	+= -fsanitize-coverage=trace-pc
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 1b412d4394ae..f1f38c8cdc74 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -298,7 +298,7 @@ DT_BINDING_DIR := Documentation/devicetree/bindings
 DT_TMP_SCHEMA := $(objtree)/$(DT_BINDING_DIR)/processed-schema.yaml
 
 quiet_cmd_dtb_check =	CHECK   $@
-      cmd_dtb_check =	$(DT_CHECKER) -p $(DT_TMP_SCHEMA) $@ ;
+      cmd_dtb_check =	$(DT_CHECKER) -u $(srctree)/$(DT_BINDING_DIR) -p $(DT_TMP_SCHEMA) $@ ;
 
 define rule_dtc_dt_yaml
 	$(call cmd_and_fixdep,dtc,yaml)
diff --git a/scripts/asn1_compiler.c b/scripts/asn1_compiler.c
index 1b28787028d3..adabd4145264 100644
--- a/scripts/asn1_compiler.c
+++ b/scripts/asn1_compiler.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /* Simplified ASN.1 notation parser
  *
  * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
  * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
  */
 
 #include <stdarg.h>
diff --git a/scripts/basic/Makefile b/scripts/basic/Makefile
index af49b446f17d..548aeb592806 100644
--- a/scripts/basic/Makefile
+++ b/scripts/basic/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 ###
 # This Makefile lists the most basic programs used during the build process.
 # The programs listed herein are what are needed to do the basic stuff,
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index bb28b178d929..342c7c781ba5 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3027,7 +3027,7 @@ sub process {
 			my @compats = $rawline =~ /\"([a-zA-Z0-9\-\,\.\+_]+)\"/g;
 
 			my $dt_path = $root . "/Documentation/devicetree/bindings/";
-			my $vp_file = $dt_path . "vendor-prefixes.txt";
+			my $vp_file = $dt_path . "vendor-prefixes.yaml";
 
 			foreach my $compat (@compats) {
 				my $compat2 = $compat;
@@ -3042,7 +3042,7 @@ sub process {
 
 				next if $compat !~ /^([a-zA-Z0-9\-]+)\,/;
 				my $vendor = $1;
-				`grep -Eq "^$vendor\\b" $vp_file`;
+				`grep -Eq "\\"\\^\Q$vendor\E,\\.\\*\\":" $vp_file`;
 				if ( $? >> 8 ) {
 					WARN("UNDOCUMENTED_DT_STRING",
 					     "DT compatible string vendor \"$vendor\" appears un-documented -- check $vp_file\n" . $herecurr);
diff --git a/scripts/conmakehash.c b/scripts/conmakehash.c
index 61bbda54cf13..cddd789fe46e 100644
--- a/scripts/conmakehash.c
+++ b/scripts/conmakehash.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * conmakehash.c
  *
@@ -8,10 +9,6 @@
  * just for this seems like massive overkill.
  *
  * Copyright (C) 1995-1997 H. Peter Anvin
- *
- * This program is a part of the Linux kernel, and may be freely
- * copied under the terms of the GNU General Public License (GPL),
- * version 2, or at your option any later version.
  */
 
 #include <stdio.h>
diff --git a/scripts/dtc/Makefile.dtc b/scripts/dtc/Makefile.dtc
index d4375630a7f7..6ce8b4a35a23 100644
--- a/scripts/dtc/Makefile.dtc
+++ b/scripts/dtc/Makefile.dtc
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 # Makefile.dtc
 #
 # This is not a complete Makefile of itself.  Instead, it is designed to
diff --git a/scripts/dtc/libfdt/Makefile.libfdt b/scripts/dtc/libfdt/Makefile.libfdt
index 3af3656df801..1649c2c48046 100644
--- a/scripts/dtc/libfdt/Makefile.libfdt
+++ b/scripts/dtc/libfdt/Makefile.libfdt
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 # Makefile.libfdt
 #
 # This is not a complete Makefile of itself.  Instead, it is designed to
diff --git a/scripts/gcc-plugins/Kconfig b/scripts/gcc-plugins/Kconfig
index 80220ed26a35..e9c677a53c74 100644
--- a/scripts/gcc-plugins/Kconfig
+++ b/scripts/gcc-plugins/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 preferred-plugin-hostcc := $(if-success,[ $(gcc-version) -ge 40800 ],$(HOSTCXX),$(HOSTCC))
 
 config PLUGIN_HOSTCC
diff --git a/scripts/gdb/Makefile b/scripts/gdb/Makefile
index 62f5f65becfd..3fca1937d956 100644
--- a/scripts/gdb/Makefile
+++ b/scripts/gdb/Makefile
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
 subdir-y := linux
diff --git a/scripts/genksyms/keywords.c b/scripts/genksyms/keywords.c
index 9f40bcd17d07..e93336baaaed 100644
--- a/scripts/genksyms/keywords.c
+++ b/scripts/genksyms/keywords.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 static struct resword {
 	const char *name;
 	int token;
diff --git a/scripts/get_dvb_firmware b/scripts/get_dvb_firmware
index f3f230225aba..1a90802410bc 100755
--- a/scripts/get_dvb_firmware
+++ b/scripts/get_dvb_firmware
@@ -1,22 +1,9 @@
 #!/usr/bin/env perl
+# SPDX-License-Identifier: GPL-2.0-or-later
 #     DVB firmware extractor
 #
 #     (c) 2004 Andrew de Quincey
 #
-#     This program is free software; you can redistribute it and/or modify
-#       it under the terms of the GNU General Public License as published by
-#       the Free Software Foundation; either version 2 of the License, or
-#       (at your option) any later version.
-#
-#     This program is distributed in the hope that it will be useful,
-#       but WITHOUT ANY WARRANTY; without even the implied warranty of
-#       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-#
-#     GNU General Public License for more details.
-#
-#     You should have received a copy of the GNU General Public License
-#       along with this program; if not, write to the Free Software
-#       Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
 use File::Temp qw/ tempdir /;
 use IO::Handle;
diff --git a/scripts/kconfig/tests/err_recursive_inc/Kconfig b/scripts/kconfig/tests/err_recursive_inc/Kconfig
index 0e4c8750ab65..c6f4adec76d1 100644
--- a/scripts/kconfig/tests/err_recursive_inc/Kconfig
+++ b/scripts/kconfig/tests/err_recursive_inc/Kconfig
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
 source "Kconfig.inc1"
diff --git a/scripts/kconfig/tests/err_recursive_inc/Kconfig.inc1 b/scripts/kconfig/tests/err_recursive_inc/Kconfig.inc1
index 00e408d653fc..01cbf0d69cce 100644
--- a/scripts/kconfig/tests/err_recursive_inc/Kconfig.inc1
+++ b/scripts/kconfig/tests/err_recursive_inc/Kconfig.inc1
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 
 
 
diff --git a/scripts/kconfig/tests/err_recursive_inc/Kconfig.inc2 b/scripts/kconfig/tests/err_recursive_inc/Kconfig.inc2
index 349ea2db15dc..82351075ab1b 100644
--- a/scripts/kconfig/tests/err_recursive_inc/Kconfig.inc2
+++ b/scripts/kconfig/tests/err_recursive_inc/Kconfig.inc2
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 
 
 source "Kconfig.inc3"
diff --git a/scripts/kconfig/tests/err_recursive_inc/Kconfig.inc3 b/scripts/kconfig/tests/err_recursive_inc/Kconfig.inc3
index 0e4c8750ab65..c6f4adec76d1 100644
--- a/scripts/kconfig/tests/err_recursive_inc/Kconfig.inc3
+++ b/scripts/kconfig/tests/err_recursive_inc/Kconfig.inc3
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
 source "Kconfig.inc1"
diff --git a/scripts/modules-check.sh b/scripts/modules-check.sh
index 2f659530e1ec..39e8cb36ba19 100755
--- a/scripts/modules-check.sh
+++ b/scripts/modules-check.sh
@@ -6,10 +6,10 @@ set -e
 # Check uniqueness of module names
 check_same_name_modules()
 {
-	for m in $(sed 's:.*/::' modules.order modules.builtin | sort | uniq -d)
+	for m in $(sed 's:.*/::' modules.order | sort | uniq -d)
 	do
-		echo "warning: same basename if the following are built as modules:" >&2
-		sed "/\/$m/!d;s:^kernel/:  :" modules.order modules.builtin >&2
+		echo "warning: same module names found:" >&2
+		sed -n "/\/$m/s:^kernel/:  :p" modules.order >&2
 	done
 }
 
diff --git a/scripts/package/Makefile b/scripts/package/Makefile
index 2c6de21e5152..27b42d5b6c4f 100644
--- a/scripts/package/Makefile
+++ b/scripts/package/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 # Makefile for the different targets used to generate full packages of a kernel
 # It uses the generic clean infrastructure of kbuild
 
diff --git a/scripts/selinux/Makefile b/scripts/selinux/Makefile
index b3048b894a39..59494e14989b 100644
--- a/scripts/selinux/Makefile
+++ b/scripts/selinux/Makefile
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
 subdir-y := mdp genheaders
diff --git a/scripts/spdxcheck.py b/scripts/spdxcheck.py
index 4fe392e507fb..33df646618e2 100755
--- a/scripts/spdxcheck.py
+++ b/scripts/spdxcheck.py
@@ -32,7 +32,7 @@ class SPDXdata(object):
 def read_spdxdata(repo):
 
     # The subdirectories of LICENSES in the kernel source
-    license_dirs = [ "preferred", "other", "exceptions" ]
+    license_dirs = [ "preferred", "deprecated", "exceptions", "dual" ]
     lictree = repo.head.commit.tree['LICENSES']
 
     spdx = SPDXdata()
diff --git a/scripts/sphinx-pre-install b/scripts/sphinx-pre-install
index f6a5c0bae31e..8c2d1bcf2e02 100755
--- a/scripts/sphinx-pre-install
+++ b/scripts/sphinx-pre-install
@@ -13,7 +13,7 @@ use strict;
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
 
-my $virtenv_dir = "sphinx_1.4";
+my $conf = "Documentation/conf.py";
 my $requirement_file = "Documentation/sphinx/requirements.txt";
 
 #
@@ -26,7 +26,9 @@ my $need = 0;
 my $optional = 0;
 my $need_symlink = 0;
 my $need_sphinx = 0;
+my $rec_sphinx_upgrade = 0;
 my $install = "";
+my $virtenv_dir = "sphinx_";
 
 #
 # Command line arguments
@@ -201,13 +203,15 @@ sub check_missing_tex($)
 	}
 }
 
-sub check_sphinx()
+sub get_sphinx_fname()
 {
-	return if findprog("sphinx-build");
+	my $fname = "sphinx-build";
+	return $fname if findprog($fname);
 
-	if (findprog("sphinx-build-3")) {
+	$fname = "sphinx-build-3";
+	if (findprog($fname)) {
 		$need_symlink = 1;
-		return;
+		return $fname;
 	}
 
 	if ($virtualenv) {
@@ -219,6 +223,73 @@ sub check_sphinx()
 	} else {
 		add_package("python-sphinx", 0);
 	}
+
+	return "";
+}
+
+sub check_sphinx()
+{
+	my $min_version;
+	my $rec_version;
+	my $cur_version;
+
+	open IN, $conf or die "Can't open $conf";
+	while (<IN>) {
+		if (m/^\s*needs_sphinx\s*=\s*[\'\"]([\d\.]+)[\'\"]/) {
+			$min_version=$1;
+			last;
+		}
+	}
+	close IN;
+
+	die "Can't get needs_sphinx version from $conf" if (!$min_version);
+
+	open IN, $requirement_file or die "Can't open $requirement_file";
+	while (<IN>) {
+		if (m/^\s*Sphinx\s*==\s*([\d\.]+)$/) {
+			$rec_version=$1;
+			last;
+		}
+	}
+	close IN;
+
+	die "Can't get recommended sphinx version from $requirement_file" if (!$min_version);
+
+	$virtenv_dir .= $rec_version;
+
+	my $sphinx = get_sphinx_fname();
+	return if ($sphinx eq "");
+
+	open IN, "$sphinx --version 2>&1 |" or die "$sphinx returned an error";
+	while (<IN>) {
+		if (m/^\s*sphinx-build\s+([\d\.]+)$/) {
+			$cur_version=$1;
+			last;
+		}
+		# Sphinx 1.2.x uses a different format
+		if (m/^\s*Sphinx.*\s+([\d\.]+)$/) {
+			$cur_version=$1;
+			last;
+		}
+	}
+	close IN;
+
+	die "$sphinx didn't return its version" if (!$cur_version);
+
+	printf "Sphinx version %s (minimal: %s, recommended >= %s)\n",
+		$cur_version, $min_version, $rec_version;
+
+	if ($cur_version lt $min_version) {
+		print "Warning: Sphinx version should be >= $min_version\n\n";
+		$need_sphinx = 1;
+		return;
+	}
+
+	if ($cur_version lt $rec_version) {
+		print "Warning: It is recommended at least Sphinx version $rec_version.\n";
+		print "         To upgrade, use:\n\n";
+		$rec_sphinx_upgrade = 1;
+	}
 }
 
 #
@@ -540,7 +611,7 @@ sub check_needs()
 		printf "\tsudo ln -sf %s /usr/bin/sphinx-build\n\n",
 		       which("sphinx-build-3");
 	}
-	if ($need_sphinx) {
+	if ($need_sphinx || $rec_sphinx_upgrade) {
 		my $activate = "$virtenv_dir/bin/activate";
 		if (-e "$ENV{'PWD'}/$activate") {
 			printf "\nNeed to activate virtualenv with:\n";
@@ -554,7 +625,8 @@ sub check_needs()
 			printf "\t$virtualenv $virtenv_dir\n";
 			printf "\t. $activate\n";
 			printf "\tpip install -r $requirement_file\n";
-			$need++;
+
+			$need++ if (!$rec_sphinx_upgrade);
 		}
 	}
 	printf "\n";
diff --git a/scripts/tags.sh b/scripts/tags.sh
index 70e14c67bde7..d46be47633af 100755
--- a/scripts/tags.sh
+++ b/scripts/tags.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-only
 # Generate tags or cscope files
 # Usage tags.sh <mode>
 #