Makefile: Move some scripts imported from Linux

We have some scripts imported from Linux Kernel:
setlocalversion, checkstack.pl, checkpatch.pl, cleanpatch

They are located under tools/ directory in U-Boot now.
But they were originally located under scripts/ directory
in Linux Kernel.

This commit moves them to the original location.

It is true that binutils-version.sh and dtc-version.sh
do not originate in Linux Kernel, but they should
be moved by analogy to gcc-version.sh.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>

1 files changed, 0 insertions, 3709 deletions

diff --git a/tools/checkpatch.pl b/tools/checkpatch.pl
deleted file mode 100755
index 88c5bc7..0000000
--- a/tools/checkpatch.pl
+++ /dev/null
@@ -1,3709 +0,0 @@
-#!/usr/bin/perl -w
-# (c) 2001, Dave Jones. (the file handling bit)
-# (c) 2005, Joel Schopp <jschopp@austin.ibm.com> (the ugly bit)
-# (c) 2007,2008, Andy Whitcroft <apw@uk.ibm.com> (new conditions, test suite)
-# (c) 2008-2010 Andy Whitcroft <apw@canonical.com>
-# Licensed under the terms of the GNU GPL License version 2
-
-use strict;
-
-my $P = $0;
-$P =~ s@.*/@@g;
-
-my $V = '0.32';
-
-use Getopt::Long qw(:config no_auto_abbrev);
-
-my $quiet = 0;
-my $tree = 1;
-my $chk_signoff = 1;
-my $chk_patch = 1;
-my $tst_only;
-my $emacs = 0;
-my $terse = 0;
-my $file = 0;
-my $check = 0;
-my $summary = 1;
-my $mailback = 0;
-my $summary_file = 0;
-my $show_types = 0;
-my $root;
-my %debug;
-my %ignore_type = ();
-my @ignore = ();
-my $help = 0;
-my $configuration_file = ".checkpatch.conf";
-my $max_line_length = 80;
-
-sub help {
-	my ($exitcode) = @_;
-
-	print << "EOM";
-Usage: $P [OPTION]... [FILE]...
-Version: $V
-
-Options:
-  -q, --quiet                quiet
-  --no-tree                  run without a kernel tree
-  --no-signoff               do not check for 'Signed-off-by' line
-  --patch                    treat FILE as patchfile (default)
-  --emacs                    emacs compile window format
-  --terse                    one line per report
-  -f, --file                 treat FILE as regular source file
-  --subjective, --strict     enable more subjective tests
-  --ignore TYPE(,TYPE2...)   ignore various comma separated message types
-  --max-line-length=n        set the maximum line length, if exceeded, warn
-  --show-types               show the message "types" in the output
-  --root=PATH                PATH to the kernel tree root
-  --no-summary               suppress the per-file summary
-  --mailback                 only produce a report in case of warnings/errors
-  --summary-file             include the filename in summary
-  --debug KEY=[0|1]          turn on/off debugging of KEY, where KEY is one of
-                             'values', 'possible', 'type', and 'attr' (default
-                             is all off)
-  --test-only=WORD           report only warnings/errors containing WORD
-                             literally
-  -h, --help, --version      display this help and exit
-
-When FILE is - read standard input.
-EOM
-
-	exit($exitcode);
-}
-
-my $conf = which_conf($configuration_file);
-if (-f $conf) {
-	my @conf_args;
-	open(my $conffile, '<', "$conf")
-	    or warn "$P: Can't find a readable $configuration_file file $!\n";
-
-	while (<$conffile>) {
-		my $line = $_;
-
-		$line =~ s/\s*\n?$//g;
-		$line =~ s/^\s*//g;
-		$line =~ s/\s+/ /g;
-
-		next if ($line =~ m/^\s*#/);
-		next if ($line =~ m/^\s*$/);
-
-		my @words = split(" ", $line);
-		foreach my $word (@words) {
-			last if ($word =~ m/^#/);
-			push (@conf_args, $word);
-		}
-	}
-	close($conffile);
-	unshift(@ARGV, @conf_args) if @conf_args;
-}
-
-GetOptions(
-	'q|quiet+'	=> \$quiet,
-	'tree!'		=> \$tree,
-	'signoff!'	=> \$chk_signoff,
-	'patch!'	=> \$chk_patch,
-	'emacs!'	=> \$emacs,
-	'terse!'	=> \$terse,
-	'f|file!'	=> \$file,
-	'subjective!'	=> \$check,
-	'strict!'	=> \$check,
-	'ignore=s'	=> \@ignore,
-	'show-types!'	=> \$show_types,
-	'max-line-length=i' => \$max_line_length,
-	'root=s'	=> \$root,
-	'summary!'	=> \$summary,
-	'mailback!'	=> \$mailback,
-	'summary-file!'	=> \$summary_file,
-
-	'debug=s'	=> \%debug,
-	'test-only=s'	=> \$tst_only,
-	'h|help'	=> \$help,
-	'version'	=> \$help
-) or help(1);
-
-help(0) if ($help);
-
-my $exit = 0;
-
-if ($#ARGV < 0) {
-	print "$P: no input files\n";
-	exit(1);
-}
-
-@ignore = split(/,/, join(',',@ignore));
-foreach my $word (@ignore) {
-	$word =~ s/\s*\n?$//g;
-	$word =~ s/^\s*//g;
-	$word =~ s/\s+/ /g;
-	$word =~ tr/[a-z]/[A-Z]/;
-
-	next if ($word =~ m/^\s*#/);
-	next if ($word =~ m/^\s*$/);
-
-	$ignore_type{$word}++;
-}
-
-my $dbg_values = 0;
-my $dbg_possible = 0;
-my $dbg_type = 0;
-my $dbg_attr = 0;
-for my $key (keys %debug) {
-	## no critic
-	eval "\${dbg_$key} = '$debug{$key}';";
-	die "$@" if ($@);
-}
-
-my $rpt_cleaners = 0;
-
-if ($terse) {
-	$emacs = 1;
-	$quiet++;
-}
-
-if ($tree) {
-	if (defined $root) {
-		if (!top_of_kernel_tree($root)) {
-			die "$P: $root: --root does not point at a valid tree\n";
-		}
-	} else {
-		if (top_of_kernel_tree('.')) {
-			$root = '.';
-		} elsif ($0 =~ m@(.*)/scripts/[^/]*$@ &&
-						top_of_kernel_tree($1)) {
-			$root = $1;
-		}
-	}
-
-	if (!defined $root) {
-		print "Must be run from the top-level dir. of a kernel tree\n";
-		exit(2);
-	}
-}
-
-my $emitted_corrupt = 0;
-
-our $Ident	= qr{
-			[A-Za-z_][A-Za-z\d_]*
-			(?:\s*\#\#\s*[A-Za-z_][A-Za-z\d_]*)*
-		}x;
-our $Storage	= qr{extern|static|asmlinkage};
-our $Sparse	= qr{
-			__user|
-			__kernel|
-			__force|
-			__iomem|
-			__must_check|
-			__init_refok|
-			__kprobes|
-			__ref|
-			__rcu
-		}x;
-
-# Notes to $Attribute:
-# We need \b after 'init' otherwise 'initconst' will cause a false positive in a check
-our $Attribute	= qr{
-			const|
-			__percpu|
-			__nocast|
-			__safe|
-			__bitwise__|
-			__packed__|
-			__packed2__|
-			__naked|
-			__maybe_unused|
-			__always_unused|
-			__noreturn|
-			__used|
-			__cold|
-			__noclone|
-			__deprecated|
-			__read_mostly|
-			__kprobes|
-			__(?:mem|cpu|dev|)(?:initdata|initconst|init\b)|
-			____cacheline_aligned|
-			____cacheline_aligned_in_smp|
-			____cacheline_internodealigned_in_smp|
-			__weak
-		  }x;
-our $Modifier;
-our $Inline	= qr{inline|__always_inline|noinline};
-our $Member	= qr{->$Ident|\.$Ident|\[[^]]*\]};
-our $Lval	= qr{$Ident(?:$Member)*};
-
-our $Float_hex	= qr{(?i)0x[0-9a-f]+p-?[0-9]+[fl]?};
-our $Float_dec	= qr{(?i)(?:[0-9]+\.[0-9]*|[0-9]*\.[0-9]+)(?:e-?[0-9]+)?[fl]?};
-our $Float_int	= qr{(?i)[0-9]+e-?[0-9]+[fl]?};
-our $Float	= qr{$Float_hex|$Float_dec|$Float_int};
-our $Constant	= qr{$Float|(?i)(?:0x[0-9a-f]+|[0-9]+)[ul]*};
-our $Assignment	= qr{\*\=|/=|%=|\+=|-=|<<=|>>=|&=|\^=|\|=|=};
-our $Compare    = qr{<=|>=|==|!=|<|>};
-our $Operators	= qr{
-			<=|>=|==|!=|
-			=>|->|<<|>>|<|>|!|~|
-			&&|\|\||,|\^|\+\+|--|&|\||\+|-|\*|\/|%
-		  }x;
-
-our $NonptrType;
-our $Type;
-our $Declare;
-
-our $NON_ASCII_UTF8	= qr{
-	[\xC2-\xDF][\x80-\xBF]               # non-overlong 2-byte
-	|  \xE0[\xA0-\xBF][\x80-\xBF]        # excluding overlongs
-	| [\xE1-\xEC\xEE\xEF][\x80-\xBF]{2}  # straight 3-byte
-	|  \xED[\x80-\x9F][\x80-\xBF]        # excluding surrogates
-	|  \xF0[\x90-\xBF][\x80-\xBF]{2}     # planes 1-3
-	| [\xF1-\xF3][\x80-\xBF]{3}          # planes 4-15
-	|  \xF4[\x80-\x8F][\x80-\xBF]{2}     # plane 16
-}x;
-
-our $UTF8	= qr{
-	[\x09\x0A\x0D\x20-\x7E]              # ASCII
-	| $NON_ASCII_UTF8
-}x;
-
-our $typeTypedefs = qr{(?x:
-	(?:__)?(?:u|s|be|le)(?:8|16|32|64)|
-	atomic_t
-)};
-
-our $logFunctions = qr{(?x:
-	printk(?:_ratelimited|_once|)|
-	[a-z0-9]+_(?:printk|emerg|alert|crit|err|warning|warn|notice|info|debug|dbg|vdbg|devel|cont|WARN)(?:_ratelimited|_once|)|
-	WARN(?:_RATELIMIT|_ONCE|)|
-	panic|
-	debug|
-	printf|
-	MODULE_[A-Z_]+
-)};
-
-our $signature_tags = qr{(?xi:
-	Signed-off-by:|
-	Acked-by:|
-	Tested-by:|
-	Reviewed-by:|
-	Reported-by:|
-	To:|
-	Cc:
-)};
-
-our @typeList = (
-	qr{void},
-	qr{(?:unsigned\s+)?char},
-	qr{(?:unsigned\s+)?short},
-	qr{(?:unsigned\s+)?int},
-	qr{(?:unsigned\s+)?long},
-	qr{(?:unsigned\s+)?long\s+int},
-	qr{(?:unsigned\s+)?long\s+long},
-	qr{(?:unsigned\s+)?long\s+long\s+int},
-	qr{unsigned},
-	qr{float},
-	qr{double},
-	qr{bool},
-	qr{struct\s+$Ident},
-	qr{union\s+$Ident},
-	qr{enum\s+$Ident},
-	qr{${Ident}_t},
-	qr{${Ident}_handler},
-	qr{${Ident}_handler_fn},
-);
-our @modifierList = (
-	qr{fastcall},
-);
-
-our $allowed_asm_includes = qr{(?x:
-	irq|
-	memory
-)};
-# memory.h: ARM has a custom one
-
-sub build_types {
-	my $mods = "(?x:  \n" . join("|\n  ", @modifierList) . "\n)";
-	my $all = "(?x:  \n" . join("|\n  ", @typeList) . "\n)";
-	$Modifier	= qr{(?:$Attribute|$Sparse|$mods)};
-	$NonptrType	= qr{
-			(?:$Modifier\s+|const\s+)*
-			(?:
-				(?:typeof|__typeof__)\s*\([^\)]*\)|
-				(?:$typeTypedefs\b)|
-				(?:${all}\b)
-			)
-			(?:\s+$Modifier|\s+const)*
-		  }x;
-	$Type	= qr{
-			$NonptrType
-			(?:(?:\s|\*|\[\])+\s*const|(?:\s|\*|\[\])+|(?:\s*\[\s*\])+)?
-			(?:\s+$Inline|\s+$Modifier)*
-		  }x;
-	$Declare	= qr{(?:$Storage\s+)?$Type};
-}
-build_types();
-
-
-our $Typecast	= qr{\s*(\(\s*$NonptrType\s*\)){0,1}\s*};
-
-# Using $balanced_parens, $LvalOrFunc, or $FuncArg
-# requires at least perl version v5.10.0
-# Any use must be runtime checked with $^V
-
-our $balanced_parens = qr/(\((?:[^\(\)]++|(?-1))*\))/;
-our $LvalOrFunc	= qr{($Lval)\s*($balanced_parens{0,1})\s*};
-our $FuncArg = qr{$Typecast{0,1}($LvalOrFunc|$Constant)};
-
-sub deparenthesize {
-	my ($string) = @_;
-	return "" if (!defined($string));
-	$string =~ s@^\s*\(\s*@@g;
-	$string =~ s@\s*\)\s*$@@g;
-	$string =~ s@\s+@ @g;
-	return $string;
-}
-
-$chk_signoff = 0 if ($file);
-
-my @rawlines = ();
-my @lines = ();
-my $vname;
-for my $filename (@ARGV) {
-	my $FILE;
-	if ($file) {
-		open($FILE, '-|', "diff -u /dev/null $filename") ||
-			die "$P: $filename: diff failed - $!\n";
-	} elsif ($filename eq '-') {
-		open($FILE, '<&STDIN');
-	} else {
-		open($FILE, '<', "$filename") ||
-			die "$P: $filename: open failed - $!\n";
-	}
-	if ($filename eq '-') {
-		$vname = 'Your patch';
-	} else {
-		$vname = $filename;
-	}
-	while (<$FILE>) {
-		chomp;
-		push(@rawlines, $_);
-	}
-	close($FILE);
-	if (!process($filename)) {
-		$exit = 1;
-	}
-	@rawlines = ();
-	@lines = ();
-}
-
-exit($exit);
-
-sub top_of_kernel_tree {
-	my ($root) = @_;
-
-	my @tree_check = (
-		"COPYING", "CREDITS", "Kbuild", "Makefile",
-		"README", "Documentation", "arch", "include", "drivers",
-		"fs", "init", "ipc", "kernel", "lib", "scripts",
-	);
-
-	foreach my $check (@tree_check) {
-		if (! -e $root . '/' . $check) {
-			return 0;
-		}
-	}
-	return 1;
-}
-
-sub parse_email {
-	my ($formatted_email) = @_;
-
-	my $name = "";
-	my $address = "";
-	my $comment = "";
-
-	if ($formatted_email =~ /^(.*)<(\S+\@\S+)>(.*)$/) {
-		$name = $1;
-		$address = $2;
-		$comment = $3 if defined $3;
-	} elsif ($formatted_email =~ /^\s*<(\S+\@\S+)>(.*)$/) {
-		$address = $1;
-		$comment = $2 if defined $2;
-	} elsif ($formatted_email =~ /(\S+\@\S+)(.*)$/) {
-		$address = $1;
-		$comment = $2 if defined $2;
-		$formatted_email =~ s/$address.*$//;
-		$name = $formatted_email;
-		$name =~ s/^\s+|\s+$//g;
-		$name =~ s/^\"|\"$//g;
-		# If there's a name left after stripping spaces and
-		# leading quotes, and the address doesn't have both
-		# leading and trailing angle brackets, the address
-		# is invalid. ie:
-		#   "joe smith joe@smith.com" bad
-		#   "joe smith <joe@smith.com" bad
-		if ($name ne "" && $address !~ /^<[^>]+>$/) {
-			$name = "";
-			$address = "";
-			$comment = "";
-		}
-	}
-
-	$name =~ s/^\s+|\s+$//g;
-	$name =~ s/^\"|\"$//g;
-	$address =~ s/^\s+|\s+$//g;
-	$address =~ s/^\<|\>$//g;
-
-	if ($name =~ /[^\w \-]/i) { ##has "must quote" chars
-		$name =~ s/(?<!\\)"/\\"/g; ##escape quotes
-		$name = "\"$name\"";
-	}
-
-	return ($name, $address, $comment);
-}
-
-sub format_email {
-	my ($name, $address) = @_;
-
-	my $formatted_email;
-
-	$name =~ s/^\s+|\s+$//g;
-	$name =~ s/^\"|\"$//g;
-	$address =~ s/^\s+|\s+$//g;
-
-	if ($name =~ /[^\w \-]/i) { ##has "must quote" chars
-		$name =~ s/(?<!\\)"/\\"/g; ##escape quotes
-		$name = "\"$name\"";
-	}
-
-	if ("$name" eq "") {
-		$formatted_email = "$address";
-	} else {
-		$formatted_email = "$name <$address>";
-	}
-
-	return $formatted_email;
-}
-
-sub which_conf {
-	my ($conf) = @_;
-
-	foreach my $path (split(/:/, ".:$ENV{HOME}:.scripts")) {
-		if (-e "$path/$conf") {
-			return "$path/$conf";
-		}
-	}
-
-	return "";
-}
-
-sub expand_tabs {
-	my ($str) = @_;
-
-	my $res = '';
-	my $n = 0;
-	for my $c (split(//, $str)) {
-		if ($c eq "\t") {
-			$res .= ' ';
-			$n++;
-			for (; ($n % 8) != 0; $n++) {
-				$res .= ' ';
-			}
-			next;
-		}
-		$res .= $c;
-		$n++;
-	}
-
-	return $res;
-}
-sub copy_spacing {
-	(my $res = shift) =~ tr/\t/ /c;
-	return $res;
-}
-
-sub line_stats {
-	my ($line) = @_;
-
-	# Drop the diff line leader and expand tabs
-	$line =~ s/^.//;
-	$line = expand_tabs($line);
-
-	# Pick the indent from the front of the line.
-	my ($white) = ($line =~ /^(\s*)/);
-
-	return (length($line), length($white));
-}
-
-my $sanitise_quote = '';
-
-sub sanitise_line_reset {
-	my ($in_comment) = @_;
-
-	if ($in_comment) {
-		$sanitise_quote = '*/';
-	} else {
-		$sanitise_quote = '';
-	}
-}
-sub sanitise_line {
-	my ($line) = @_;
-
-	my $res = '';
-	my $l = '';
-
-	my $qlen = 0;
-	my $off = 0;
-	my $c;
-
-	# Always copy over the diff marker.
-	$res = substr($line, 0, 1);
-
-	for ($off = 1; $off < length($line); $off++) {
-		$c = substr($line, $off, 1);
-
-		# Comments we are wacking completly including the begin
-		# and end, all to $;.
-		if ($sanitise_quote eq '' && substr($line, $off, 2) eq '/*') {
-			$sanitise_quote = '*/';
-
-			substr($res, $off, 2, "$;$;");
-			$off++;
-			next;
-		}
-		if ($sanitise_quote eq '*/' && substr($line, $off, 2) eq '*/') {
-			$sanitise_quote = '';
-			substr($res, $off, 2, "$;$;");
-			$off++;
-			next;
-		}
-		if ($sanitise_quote eq '' && substr($line, $off, 2) eq '//') {
-			$sanitise_quote = '//';
-
-			substr($res, $off, 2, $sanitise_quote);
-			$off++;
-			next;
-		}
-
-		# A \ in a string means ignore the next character.
-		if (($sanitise_quote eq "'" || $sanitise_quote eq '"') &&
-		    $c eq "\\") {
-			substr($res, $off, 2, 'XX');
-			$off++;
-			next;
-		}
-		# Regular quotes.
-		if ($c eq "'" || $c eq '"') {
-			if ($sanitise_quote eq '') {
-				$sanitise_quote = $c;
-
-				substr($res, $off, 1, $c);
-				next;
-			} elsif ($sanitise_quote eq $c) {
-				$sanitise_quote = '';
-			}
-		}
-
-		#print "c<$c> SQ<$sanitise_quote>\n";
-		if ($off != 0 && $sanitise_quote eq '*/' && $c ne "\t") {
-			substr($res, $off, 1, $;);
-		} elsif ($off != 0 && $sanitise_quote eq '//' && $c ne "\t") {
-			substr($res, $off, 1, $;);
-		} elsif ($off != 0 && $sanitise_quote && $c ne "\t") {
-			substr($res, $off, 1, 'X');
-		} else {
-			substr($res, $off, 1, $c);
-		}
-	}
-
-	if ($sanitise_quote eq '//') {
-		$sanitise_quote = '';
-	}
-
-	# The pathname on a #include may be surrounded by '<' and '>'.
-	if ($res =~ /^.\s*\#\s*include\s+\<(.*)\>/) {
-		my $clean = 'X' x length($1);
-		$res =~ s@\<.*\>@<$clean>@;
-
-	# The whole of a #error is a string.
-	} elsif ($res =~ /^.\s*\#\s*(?:error|warning)\s+(.*)\b/) {
-		my $clean = 'X' x length($1);
-		$res =~ s@(\#\s*(?:error|warning)\s+).*@$1$clean@;
-	}
-
-	return $res;
-}
-
-sub ctx_statement_block {
-	my ($linenr, $remain, $off) = @_;
-	my $line = $linenr - 1;
-	my $blk = '';
-	my $soff = $off;
-	my $coff = $off - 1;
-	my $coff_set = 0;
-
-	my $loff = 0;
-
-	my $type = '';
-	my $level = 0;
-	my @stack = ();
-	my $p;
-	my $c;
-	my $len = 0;
-
-	my $remainder;
-	while (1) {
-		@stack = (['', 0]) if ($#stack == -1);
-
-		#warn "CSB: blk<$blk> remain<$remain>\n";
-		# If we are about to drop off the end, pull in more
-		# context.
-		if ($off >= $len) {
-			for (; $remain > 0; $line++) {
-				last if (!defined $lines[$line]);
-				next if ($lines[$line] =~ /^-/);
-				$remain--;
-				$loff = $len;
-				$blk .= $lines[$line] . "\n";
-				$len = length($blk);
-				$line++;
-				last;
-			}
-			# Bail if there is no further context.
-			#warn "CSB: blk<$blk> off<$off> len<$len>\n";
-			if ($off >= $len) {
-				last;
-			}
-			if ($level == 0 && substr($blk, $off) =~ /^.\s*#\s*define/) {
-				$level++;
-				$type = '#';
-			}
-		}
-		$p = $c;
-		$c = substr($blk, $off, 1);
-		$remainder = substr($blk, $off);
-
-		#warn "CSB: c<$c> type<$type> level<$level> remainder<$remainder> coff_set<$coff_set>\n";
-
-		# Handle nested #if/#else.
-		if ($remainder =~ /^#\s*(?:ifndef|ifdef|if)\s/) {
-			push(@stack, [ $type, $level ]);
-		} elsif ($remainder =~ /^#\s*(?:else|elif)\b/) {
-			($type, $level) = @{$stack[$#stack - 1]};
-		} elsif ($remainder =~ /^#\s*endif\b/) {
-			($type, $level) = @{pop(@stack)};
-		}
-
-		# Statement ends at the ';' or a close '}' at the
-		# outermost level.
-		if ($level == 0 && $c eq ';') {
-			last;
-		}
-
-		# An else is really a conditional as long as its not else if
-		if ($level == 0 && $coff_set == 0 &&
-				(!defined($p) || $p =~ /(?:\s|\}|\+)/) &&
-				$remainder =~ /^(else)(?:\s|{)/ &&
-				$remainder !~ /^else\s+if\b/) {
-			$coff = $off + length($1) - 1;
-			$coff_set = 1;
-			#warn "CSB: mark coff<$coff> soff<$soff> 1<$1>\n";
-			#warn "[" . substr($blk, $soff, $coff - $soff + 1) . "]\n";
-		}
-
-		if (($type eq '' || $type eq '(') && $c eq '(') {
-			$level++;
-			$type = '(';
-		}
-		if ($type eq '(' && $c eq ')') {
-			$level--;
-			$type = ($level != 0)? '(' : '';
-
-			if ($level == 0 && $coff < $soff) {
-				$coff = $off;
-				$coff_set = 1;
-				#warn "CSB: mark coff<$coff>\n";
-			}
-		}
-		if (($type eq '' || $type eq '{') && $c eq '{') {
-			$level++;
-			$type = '{';
-		}
-		if ($type eq '{' && $c eq '}') {
-			$level--;
-			$type = ($level != 0)? '{' : '';
-
-			if ($level == 0) {
-				if (substr($blk, $off + 1, 1) eq ';') {
-					$off++;
-				}
-				last;
-			}
-		}
-		# Preprocessor commands end at the newline unless escaped.
-		if ($type eq '#' && $c eq "\n" && $p ne "\\") {
-			$level--;
-			$type = '';
-			$off++;
-			last;
-		}
-		$off++;
-	}
-	# We are truly at the end, so shuffle to the next line.
-	if ($off == $len) {
-		$loff = $len + 1;
-		$line++;
-		$remain--;
-	}
-
-	my $statement = substr($blk, $soff, $off - $soff + 1);
-	my $condition = substr($blk, $soff, $coff - $soff + 1);
-
-	#warn "STATEMENT<$statement>\n";
-	#warn "CONDITION<$condition>\n";
-
-	#print "coff<$coff> soff<$off> loff<$loff>\n";
-
-	return ($statement, $condition,
-			$line, $remain + 1, $off - $loff + 1, $level);
-}
-
-sub statement_lines {
-	my ($stmt) = @_;
-
-	# Strip the diff line prefixes and rip blank lines at start and end.
-	$stmt =~ s/(^|\n)./$1/g;
-	$stmt =~ s/^\s*//;
-	$stmt =~ s/\s*$//;
-
-	my @stmt_lines = ($stmt =~ /\n/g);
-
-	return $#stmt_lines + 2;
-}
-
-sub statement_rawlines {
-	my ($stmt) = @_;
-
-	my @stmt_lines = ($stmt =~ /\n/g);
-
-	return $#stmt_lines + 2;
-}
-
-sub statement_block_size {
-	my ($stmt) = @_;
-
-	$stmt =~ s/(^|\n)./$1/g;
-	$stmt =~ s/^\s*{//;
-	$stmt =~ s/}\s*$//;
-	$stmt =~ s/^\s*//;
-	$stmt =~ s/\s*$//;
-
-	my @stmt_lines = ($stmt =~ /\n/g);
-	my @stmt_statements = ($stmt =~ /;/g);
-
-	my $stmt_lines = $#stmt_lines + 2;
-	my $stmt_statements = $#stmt_statements + 1;
-
-	if ($stmt_lines > $stmt_statements) {
-		return $stmt_lines;
-	} else {
-		return $stmt_statements;
-	}
-}
-
-sub ctx_statement_full {
-	my ($linenr, $remain, $off) = @_;
-	my ($statement, $condition, $level);
-
-	my (@chunks);
-
-	# Grab the first conditional/block pair.
-	($statement, $condition, $linenr, $remain, $off, $level) =
-				ctx_statement_block($linenr, $remain, $off);
-	#print "F: c<$condition> s<$statement> remain<$remain>\n";
-	push(@chunks, [ $condition, $statement ]);
-	if (!($remain > 0 && $condition =~ /^\s*(?:\n[+-])?\s*(?:if|else|do)\b/s)) {
-		return ($level, $linenr, @chunks);
-	}
-
-	# Pull in the following conditional/block pairs and see if they
-	# could continue the statement.
-	for (;;) {
-		($statement, $condition, $linenr, $remain, $off, $level) =
-				ctx_statement_block($linenr, $remain, $off);
-		#print "C: c<$condition> s<$statement> remain<$remain>\n";
-		last if (!($remain > 0 && $condition =~ /^(?:\s*\n[+-])*\s*(?:else|do)\b/s));
-		#print "C: push\n";
-		push(@chunks, [ $condition, $statement ]);
-	}
-
-	return ($level, $linenr, @chunks);
-}
-
-sub ctx_block_get {
-	my ($linenr, $remain, $outer, $open, $close, $off) = @_;
-	my $line;
-	my $start = $linenr - 1;
-	my $blk = '';
-	my @o;
-	my @c;
-	my @res = ();
-
-	my $level = 0;
-	my @stack = ($level);
-	for ($line = $start; $remain > 0; $line++) {
-		next if ($rawlines[$line] =~ /^-/);
-		$remain--;
-
-		$blk .= $rawlines[$line];
-
-		# Handle nested #if/#else.
-		if ($lines[$line] =~ /^.\s*#\s*(?:ifndef|ifdef|if)\s/) {
-			push(@stack, $level);
-		} elsif ($lines[$line] =~ /^.\s*#\s*(?:else|elif)\b/) {
-			$level = $stack[$#stack - 1];
-		} elsif ($lines[$line] =~ /^.\s*#\s*endif\b/) {
-			$level = pop(@stack);
-		}
-
-		foreach my $c (split(//, $lines[$line])) {
-			##print "C<$c>L<$level><$open$close>O<$off>\n";
-			if ($off > 0) {
-				$off--;
-				next;
-			}
-
-			if ($c eq $close && $level > 0) {
-				$level--;
-				last if ($level == 0);
-			} elsif ($c eq $open) {
-				$level++;
-			}
-		}
-
-		if (!$outer || $level <= 1) {
-			push(@res, $rawlines[$line]);
-		}
-
-		last if ($level == 0);
-	}
-
-	return ($level, @res);
-}
-sub ctx_block_outer {
-	my ($linenr, $remain) = @_;
-
-	my ($level, @r) = ctx_block_get($linenr, $remain, 1, '{', '}', 0);
-	return @r;
-}
-sub ctx_block {
-	my ($linenr, $remain) = @_;
-
-	my ($level, @r) = ctx_block_get($linenr, $remain, 0, '{', '}', 0);
-	return @r;
-}
-sub ctx_statement {
-	my ($linenr, $remain, $off) = @_;
-
-	my ($level, @r) = ctx_block_get($linenr, $remain, 0, '(', ')', $off);
-	return @r;
-}
-sub ctx_block_level {
-	my ($linenr, $remain) = @_;
-
-	return ctx_block_get($linenr, $remain, 0, '{', '}', 0);
-}
-sub ctx_statement_level {
-	my ($linenr, $remain, $off) = @_;
-
-	return ctx_block_get($linenr, $remain, 0, '(', ')', $off);
-}
-
-sub ctx_locate_comment {
-	my ($first_line, $end_line) = @_;
-
-	# Catch a comment on the end of the line itself.
-	my ($current_comment) = ($rawlines[$end_line - 1] =~ m@.*(/\*.*\*/)\s*(?:\\\s*)?$@);
-	return $current_comment if (defined $current_comment);
-
-	# Look through the context and try and figure out if there is a
-	# comment.
-	my $in_comment = 0;
-	$current_comment = '';
-	for (my $linenr = $first_line; $linenr < $end_line; $linenr++) {
-		my $line = $rawlines[$linenr - 1];
-		#warn "           $line\n";
-		if ($linenr == $first_line and $line =~ m@^.\s*\*@) {
-			$in_comment = 1;
-		}
-		if ($line =~ m@/\*@) {
-			$in_comment = 1;
-		}
-		if (!$in_comment && $current_comment ne '') {
-			$current_comment = '';
-		}
-		$current_comment .= $line . "\n" if ($in_comment);
-		if ($line =~ m@\*/@) {
-			$in_comment = 0;
-		}
-	}
-
-	chomp($current_comment);
-	return($current_comment);
-}
-sub ctx_has_comment {
-	my ($first_line, $end_line) = @_;
-	my $cmt = ctx_locate_comment($first_line, $end_line);
-
-	##print "LINE: $rawlines[$end_line - 1 ]\n";
-	##print "CMMT: $cmt\n";
-
-	return ($cmt ne '');
-}
-
-sub raw_line {
-	my ($linenr, $cnt) = @_;
-
-	my $offset = $linenr - 1;
-	$cnt++;
-
-	my $line;
-	while ($cnt) {
-		$line = $rawlines[$offset++];
-		next if (defined($line) && $line =~ /^-/);
-		$cnt--;
-	}
-
-	return $line;
-}
-
-sub cat_vet {
-	my ($vet) = @_;
-	my ($res, $coded);
-
-	$res = '';
-	while ($vet =~ /([^[:cntrl:]]*)([[:cntrl:]]|$)/g) {
-		$res .= $1;
-		if ($2 ne '') {
-			$coded = sprintf("^%c", unpack('C', $2) + 64);
-			$res .= $coded;
-		}
-	}
-	$res =~ s/$/\$/;
-
-	return $res;
-}
-
-my $av_preprocessor = 0;
-my $av_pending;
-my @av_paren_type;
-my $av_pend_colon;
-
-sub annotate_reset {
-	$av_preprocessor = 0;
-	$av_pending = '_';
-	@av_paren_type = ('E');
-	$av_pend_colon = 'O';
-}
-
-sub annotate_values {
-	my ($stream, $type) = @_;
-
-	my $res;
-	my $var = '_' x length($stream);
-	my $cur = $stream;
-
-	print "$stream\n" if ($dbg_values > 1);
-
-	while (length($cur)) {
-		@av_paren_type = ('E') if ($#av_paren_type < 0);
-		print " <" . join('', @av_paren_type) .
-				"> <$type> <$av_pending>" if ($dbg_values > 1);
-		if ($cur =~ /^(\s+)/o) {
-			print "WS($1)\n" if ($dbg_values > 1);
-			if ($1 =~ /\n/ && $av_preprocessor) {
-				$type = pop(@av_paren_type);
-				$av_preprocessor = 0;
-			}
-
-		} elsif ($cur =~ /^(\(\s*$Type\s*)\)/ && $av_pending eq '_') {
-			print "CAST($1)\n" if ($dbg_values > 1);
-			push(@av_paren_type, $type);
-			$type = 'c';
-
-		} elsif ($cur =~ /^($Type)\s*(?:$Ident|,|\)|\(|\s*$)/) {
-			print "DECLARE($1)\n" if ($dbg_values > 1);
-			$type = 'T';
-
-		} elsif ($cur =~ /^($Modifier)\s*/) {
-			print "MODIFIER($1)\n" if ($dbg_values > 1);
-			$type = 'T';
-
-		} elsif ($cur =~ /^(\#\s*define\s*$Ident)(\(?)/o) {
-			print "DEFINE($1,$2)\n" if ($dbg_values > 1);
-			$av_preprocessor = 1;
-			push(@av_paren_type, $type);
-			if ($2 ne '') {
-				$av_pending = 'N';
-			}
-			$type = 'E';
-
-		} elsif ($cur =~ /^(\#\s*(?:undef\s*$Ident|include\b))/o) {
-			print "UNDEF($1)\n" if ($dbg_values > 1);
-			$av_preprocessor = 1;
-			push(@av_paren_type, $type);
-
-		} elsif ($cur =~ /^(\#\s*(?:ifdef|ifndef|if))/o) {
-			print "PRE_START($1)\n" if ($dbg_values > 1);
-			$av_preprocessor = 1;
-
-			push(@av_paren_type, $type);
-			push(@av_paren_type, $type);
-			$type = 'E';
-
-		} elsif ($cur =~ /^(\#\s*(?:else|elif))/o) {
-			print "PRE_RESTART($1)\n" if ($dbg_values > 1);
-			$av_preprocessor = 1;
-
-			push(@av_paren_type, $av_paren_type[$#av_paren_type]);
-
-			$type = 'E';
-
-		} elsif ($cur =~ /^(\#\s*(?:endif))/o) {
-			print "PRE_END($1)\n" if ($dbg_values > 1);
-
-			$av_preprocessor = 1;
-
-			# Assume all arms of the conditional end as this
-			# one does, and continue as if the #endif was not here.
-			pop(@av_paren_type);
-			push(@av_paren_type, $type);
-			$type = 'E';
-
-		} elsif ($cur =~ /^(\\\n)/o) {
-			print "PRECONT($1)\n" if ($dbg_values > 1);
-
-		} elsif ($cur =~ /^(__attribute__)\s*\(?/o) {
-			print "ATTR($1)\n" if ($dbg_values > 1);
-			$av_pending = $type;
-			$type = 'N';
-
-		} elsif ($cur =~ /^(sizeof)\s*(\()?/o) {
-			print "SIZEOF($1)\n" if ($dbg_values > 1);
-			if (defined $2) {
-				$av_pending = 'V';
-			}
-			$type = 'N';
-
-		} elsif ($cur =~ /^(if|while|for)\b/o) {
-			print "COND($1)\n" if ($dbg_values > 1);
-			$av_pending = 'E';
-			$type = 'N';
-
-		} elsif ($cur =~/^(case)/o) {
-			print "CASE($1)\n" if ($dbg_values > 1);
-			$av_pend_colon = 'C';
-			$type = 'N';
-
-		} elsif ($cur =~/^(return|else|goto|typeof|__typeof__)\b/o) {
-			print "KEYWORD($1)\n" if ($dbg_values > 1);
-			$type = 'N';
-
-		} elsif ($cur =~ /^(\()/o) {
-			print "PAREN('$1')\n" if ($dbg_values > 1);
-			push(@av_paren_type, $av_pending);
-			$av_pending = '_';
-			$type = 'N';
-
-		} elsif ($cur =~ /^(\))/o) {
-			my $new_type = pop(@av_paren_type);
-			if ($new_type ne '_') {
-				$type = $new_type;
-				print "PAREN('$1') -> $type\n"
-							if ($dbg_values > 1);
-			} else {
-				print "PAREN('$1')\n" if ($dbg_values > 1);
-			}
-
-		} elsif ($cur =~ /^($Ident)\s*\(/o) {
-			print "FUNC($1)\n" if ($dbg_values > 1);
-			$type = 'V';
-			$av_pending = 'V';
-
-		} elsif ($cur =~ /^($Ident\s*):(?:\s*\d+\s*(,|=|;))?/) {
-			if (defined $2 && $type eq 'C' || $type eq 'T') {
-				$av_pend_colon = 'B';
-			} elsif ($type eq 'E') {
-				$av_pend_colon = 'L';
-			}
-			print "IDENT_COLON($1,$type>$av_pend_colon)\n" if ($dbg_values > 1);
-			$type = 'V';
-
-		} elsif ($cur =~ /^($Ident|$Constant)/o) {
-			print "IDENT($1)\n" if ($dbg_values > 1);
-			$type = 'V';
-
-		} elsif ($cur =~ /^($Assignment)/o) {
-			print "ASSIGN($1)\n" if ($dbg_values > 1);
-			$type = 'N';
-
-		} elsif ($cur =~/^(;|{|})/) {
-			print "END($1)\n" if ($dbg_values > 1);
-			$type = 'E';
-			$av_pend_colon = 'O';
-
-		} elsif ($cur =~/^(,)/) {
-			print "COMMA($1)\n" if ($dbg_values > 1);
-			$type = 'C';
-
-		} elsif ($cur =~ /^(\?)/o) {
-			print "QUESTION($1)\n" if ($dbg_values > 1);
-			$type = 'N';
-
-		} elsif ($cur =~ /^(:)/o) {
-			print "COLON($1,$av_pend_colon)\n" if ($dbg_values > 1);
-
-			substr($var, length($res), 1, $av_pend_colon);
-			if ($av_pend_colon eq 'C' || $av_pend_colon eq 'L') {
-				$type = 'E';
-			} else {
-				$type = 'N';
-			}
-			$av_pend_colon = 'O';
-
-		} elsif ($cur =~ /^(\[)/o) {
-			print "CLOSE($1)\n" if ($dbg_values > 1);
-			$type = 'N';
-
-		} elsif ($cur =~ /^(-(?![->])|\+(?!\+)|\*|\&\&|\&)/o) {
-			my $variant;
-
-			print "OPV($1)\n" if ($dbg_values > 1);
-			if ($type eq 'V') {
-				$variant = 'B';
-			} else {
-				$variant = 'U';
-			}
-
-			substr($var, length($res), 1, $variant);
-			$type = 'N';
-
-		} elsif ($cur =~ /^($Operators)/o) {
-			print "OP($1)\n" if ($dbg_values > 1);
-			if ($1 ne '++' && $1 ne '--') {
-				$type = 'N';
-			}
-
-		} elsif ($cur =~ /(^.)/o) {
-			print "C($1)\n" if ($dbg_values > 1);
-		}
-		if (defined $1) {
-			$cur = substr($cur, length($1));
-			$res .= $type x length($1);
-		}
-	}
-
-	return ($res, $var);
-}
-
-sub possible {
-	my ($possible, $line) = @_;
-	my $notPermitted = qr{(?:
-		^(?:
-			$Modifier|
-			$Storage|
-			$Type|
-			DEFINE_\S+
-		)$|
-		^(?:
-			goto|
-			return|
-			case|
-			else|
-			asm|__asm__|
-			do|
-			\#|
-			\#\#|
-		)(?:\s|$)|
-		^(?:typedef|struct|enum)\b
-	    )}x;
-	warn "CHECK<$possible> ($line)\n" if ($dbg_possible > 2);
-	if ($possible !~ $notPermitted) {
-		# Check for modifiers.
-		$possible =~ s/\s*$Storage\s*//g;
-		$possible =~ s/\s*$Sparse\s*//g;
-		if ($possible =~ /^\s*$/) {
-
-		} elsif ($possible =~ /\s/) {
-			$possible =~ s/\s*$Type\s*//g;
-			for my $modifier (split(' ', $possible)) {
-				if ($modifier !~ $notPermitted) {
-					warn "MODIFIER: $modifier ($possible) ($line)\n" if ($dbg_possible);
-					push(@modifierList, $modifier);
-				}
-			}
-
-		} else {
-			warn "POSSIBLE: $possible ($line)\n" if ($dbg_possible);
-			push(@typeList, $possible);
-		}
-		build_types();
-	} else {
-		warn "NOTPOSS: $possible ($line)\n" if ($dbg_possible > 1);
-	}
-}
-
-my $prefix = '';
-
-sub show_type {
-       return !defined $ignore_type{$_[0]};
-}
-
-sub report {
-	if (!show_type($_[1]) ||
-	    (defined $tst_only && $_[2] !~ /\Q$tst_only\E/)) {
-		return 0;
-	}
-	my $line;
-	if ($show_types) {
-		$line = "$prefix$_[0]:$_[1]: $_[2]\n";
-	} else {
-		$line = "$prefix$_[0]: $_[2]\n";
-	}
-	$line = (split('\n', $line))[0] . "\n" if ($terse);
-
-	push(our @report, $line);
-
-	return 1;
-}
-sub report_dump {
-	our @report;
-}
-
-sub ERROR {
-	if (report("ERROR", $_[0], $_[1])) {
-		our $clean = 0;
-		our $cnt_error++;
-	}
-}
-sub WARN {
-	if (report("WARNING", $_[0], $_[1])) {
-		our $clean = 0;
-		our $cnt_warn++;
-	}
-}
-sub CHK {
-	if ($check && report("CHECK", $_[0], $_[1])) {
-		our $clean = 0;
-		our $cnt_chk++;
-	}
-}
-
-sub check_absolute_file {
-	my ($absolute, $herecurr) = @_;
-	my $file = $absolute;
-
-	##print "absolute<$absolute>\n";
-
-	# See if any suffix of this path is a path within the tree.
-	while ($file =~ s@^[^/]*/@@) {
-		if (-f "$root/$file") {
-			##print "file<$file>\n";
-			last;
-		}
-	}
-	if (! -f _)  {
-		return 0;
-	}
-
-	# It is, so see if the prefix is acceptable.
-	my $prefix = $absolute;
-	substr($prefix, -length($file)) = '';
-
-	##print "prefix<$prefix>\n";
-	if ($prefix ne ".../") {
-		WARN("USE_RELATIVE_PATH",
-		     "use relative pathname instead of absolute in changelog text\n" . $herecurr);
-	}
-}
-
-sub pos_last_openparen {
-	my ($line) = @_;
-
-	my $pos = 0;
-
-	my $opens = $line =~ tr/\(/\(/;
-	my $closes = $line =~ tr/\)/\)/;
-
-	my $last_openparen = 0;
-
-	if (($opens == 0) || ($closes >= $opens)) {
-		return -1;
-	}
-
-	my $len = length($line);
-
-	for ($pos = 0; $pos < $len; $pos++) {
-		my $string = substr($line, $pos);
-		if ($string =~ /^($FuncArg|$balanced_parens)/) {
-			$pos += length($1) - 1;
-		} elsif (substr($line, $pos, 1) eq '(') {
-			$last_openparen = $pos;
-		} elsif (index($string, '(') == -1) {
-			last;
-		}
-	}
-
-	return $last_openparen + 1;
-}
-
-sub process {
-	my $filename = shift;
-
-	my $linenr=0;
-	my $prevline="";
-	my $prevrawline="";
-	my $stashline="";
-	my $stashrawline="";
-
-	my $length;
-	my $indent;
-	my $previndent=0;
-	my $stashindent=0;
-
-	our $clean = 1;
-	my $signoff = 0;
-	my $is_patch = 0;
-
-	my $in_header_lines = 1;
-	my $in_commit_log = 0;		#Scanning lines before patch
-
-	my $non_utf8_charset = 0;
-
-	our @report = ();
-	our $cnt_lines = 0;
-	our $cnt_error = 0;
-	our $cnt_warn = 0;
-	our $cnt_chk = 0;
-
-	# Trace the real file/line as we go.
-	my $realfile = '';
-	my $realline = 0;
-	my $realcnt = 0;
-	my $here = '';
-	my $in_comment = 0;
-	my $comment_edge = 0;
-	my $first_line = 0;
-	my $p1_prefix = '';
-
-	my $prev_values = 'E';
-
-	# suppression flags
-	my %suppress_ifbraces;
-	my %suppress_whiletrailers;
-	my %suppress_export;
-	my $suppress_statement = 0;
-
-	my %camelcase = ();
-
-	# Pre-scan the patch sanitizing the lines.
-	# Pre-scan the patch looking for any __setup documentation.
-	#
-	my @setup_docs = ();
-	my $setup_docs = 0;
-
-	sanitise_line_reset();
-	my $line;
-	foreach my $rawline (@rawlines) {
-		$linenr++;
-		$line = $rawline;
-
-		if ($rawline=~/^\+\+\+\s+(\S+)/) {
-			$setup_docs = 0;
-			if ($1 =~ m@Documentation/kernel-parameters.txt$@) {
-				$setup_docs = 1;
-			}
-			#next;
-		}
-		if ($rawline=~/^\@\@ -\d+(?:,\d+)? \+(\d+)(,(\d+))? \@\@/) {
-			$realline=$1-1;
-			if (defined $2) {
-				$realcnt=$3+1;
-			} else {
-				$realcnt=1+1;
-			}
-			$in_comment = 0;
-
-			# Guestimate if this is a continuing comment.  Run
-			# the context looking for a comment "edge".  If this
-			# edge is a close comment then we must be in a comment
-			# at context start.
-			my $edge;
-			my $cnt = $realcnt;
-			for (my $ln = $linenr + 1; $cnt > 0; $ln++) {
-				next if (defined $rawlines[$ln - 1] &&
-					 $rawlines[$ln - 1] =~ /^-/);
-				$cnt--;
-				#print "RAW<$rawlines[$ln - 1]>\n";
-				last if (!defined $rawlines[$ln - 1]);
-				if ($rawlines[$ln - 1] =~ m@(/\*|\*/)@ &&
-				    $rawlines[$ln - 1] !~ m@"[^"]*(?:/\*|\*/)[^"]*"@) {
-					($edge) = $1;
-					last;
-				}
-			}
-			if (defined $edge && $edge eq '*/') {
-				$in_comment = 1;
-			}
-
-			# Guestimate if this is a continuing comment.  If this
-			# is the start of a diff block and this line starts
-			# ' *' then it is very likely a comment.
-			if (!defined $edge &&
-			    $rawlines[$linenr] =~ m@^.\s*(?:\*\*+| \*)(?:\s|$)@)
-			{
-				$in_comment = 1;
-			}
-
-			##print "COMMENT:$in_comment edge<$edge> $rawline\n";
-			sanitise_line_reset($in_comment);
-
-		} elsif ($realcnt && $rawline =~ /^(?:\+| |$)/) {
-			# Standardise the strings and chars within the input to
-			# simplify matching -- only bother with positive lines.
-			$line = sanitise_line($rawline);
-		}
-		push(@lines, $line);
-
-		if ($realcnt > 1) {
-			$realcnt-- if ($line =~ /^(?:\+| |$)/);
-		} else {
-			$realcnt = 0;
-		}
-
-		#print "==>$rawline\n";
-		#print "-->$line\n";
-
-		if ($setup_docs && $line =~ /^\+/) {
-			push(@setup_docs, $line);
-		}
-	}
-
-	$prefix = '';
-
-	$realcnt = 0;
-	$linenr = 0;
-	foreach my $line (@lines) {
-		$linenr++;
-
-		my $rawline = $rawlines[$linenr - 1];
-
-#extract the line range in the file after the patch is applied
-		if ($line=~/^\@\@ -\d+(?:,\d+)? \+(\d+)(,(\d+))? \@\@/) {
-			$is_patch = 1;
-			$first_line = $linenr + 1;
-			$realline=$1-1;
-			if (defined $2) {
-				$realcnt=$3+1;
-			} else {
-				$realcnt=1+1;
-			}
-			annotate_reset();
-			$prev_values = 'E';
-
-			%suppress_ifbraces = ();
-			%suppress_whiletrailers = ();
-			%suppress_export = ();
-			$suppress_statement = 0;
-			next;
-
-# track the line number as we move through the hunk, note that
-# new versions of GNU diff omit the leading space on completely
-# blank context lines so we need to count that too.
-		} elsif ($line =~ /^( |\+|$)/) {
-			$realline++;
-			$realcnt-- if ($realcnt != 0);
-
-			# Measure the line length and indent.
-			($length, $indent) = line_stats($rawline);
-
-			# Track the previous line.
-			($prevline, $stashline) = ($stashline, $line);
-			($previndent, $stashindent) = ($stashindent, $indent);
-			($prevrawline, $stashrawline) = ($stashrawline, $rawline);
-
-			#warn "line<$line>\n";
-
-		} elsif ($realcnt == 1) {
-			$realcnt--;
-		}
-
-		my $hunk_line = ($realcnt != 0);
-
-#make up the handle for any error we report on this line
-		$prefix = "$filename:$realline: " if ($emacs && $file);
-		$prefix = "$filename:$linenr: " if ($emacs && !$file);
-
-		$here = "#$linenr: " if (!$file);
-		$here = "#$realline: " if ($file);
-
-		# extract the filename as it passes
-		if ($line =~ /^diff --git.*?(\S+)$/) {
-			$realfile = $1;
-			$realfile =~ s@^([^/]*)/@@;
-			$in_commit_log = 0;
-		} elsif ($line =~ /^\+\+\+\s+(\S+)/) {
-			$realfile = $1;
-			$realfile =~ s@^([^/]*)/@@;
-			$in_commit_log = 0;
-
-			$p1_prefix = $1;
-			if (!$file && $tree && $p1_prefix ne '' &&
-			    -e "$root/$p1_prefix") {
-				WARN("PATCH_PREFIX",
-				     "patch prefix '$p1_prefix' exists, appears to be a -p0 patch\n");
-			}
-
-			if ($realfile =~ m@^include/asm/@) {
-				ERROR("MODIFIED_INCLUDE_ASM",
-				      "do not modify files in include/asm, change architecture specific files in include/asm-<architecture>\n" . "$here$rawline\n");
-			}
-			next;
-		}
-
-		$here .= "FILE: $realfile:$realline:" if ($realcnt != 0);
-
-		my $hereline = "$here\n$rawline\n";
-		my $herecurr = "$here\n$rawline\n";
-		my $hereprev = "$here\n$prevrawline\n$rawline\n";
-
-		$cnt_lines++ if ($realcnt != 0);
-
-# Check for incorrect file permissions
-		if ($line =~ /^new (file )?mode.*[7531]\d{0,2}$/) {
-			my $permhere = $here . "FILE: $realfile\n";
-			if ($realfile =~ /(Makefile|Kconfig|\.c|\.h|\.S|\.tmpl)$/) {
-				ERROR("EXECUTE_PERMISSIONS",
-				      "do not set execute permissions for source files\n" . $permhere);
-			}
-		}
-
-# Check the patch for a signoff:
-		if ($line =~ /^\s*signed-off-by:/i) {
-			$signoff++;
-			$in_commit_log = 0;
-		}
-
-# Check signature styles
-		if (!$in_header_lines &&
-		    $line =~ /^(\s*)([a-z0-9_-]+by:|$signature_tags)(\s*)(.*)/i) {
-			my $space_before = $1;
-			my $sign_off = $2;
-			my $space_after = $3;
-			my $email = $4;
-			my $ucfirst_sign_off = ucfirst(lc($sign_off));
-
-			if ($sign_off !~ /$signature_tags/) {
-				WARN("BAD_SIGN_OFF",
-				     "Non-standard signature: $sign_off\n" . $herecurr);
-			}
-			if (defined $space_before && $space_before ne "") {
-				WARN("BAD_SIGN_OFF",
-				     "Do not use whitespace before $ucfirst_sign_off\n" . $herecurr);
-			}
-			if ($sign_off =~ /-by:$/i && $sign_off ne $ucfirst_sign_off) {
-				WARN("BAD_SIGN_OFF",
-				     "'$ucfirst_sign_off' is the preferred signature form\n" . $herecurr);
-			}
-			if (!defined $space_after || $space_after ne " ") {
-				WARN("BAD_SIGN_OFF",
-				     "Use a single space after $ucfirst_sign_off\n" . $herecurr);
-			}
-
-			my ($email_name, $email_address, $comment) = parse_email($email);
-			my $suggested_email = format_email(($email_name, $email_address));
-			if ($suggested_email eq "") {
-				ERROR("BAD_SIGN_OFF",
-				      "Unrecognized email address: '$email'\n" . $herecurr);
-			} else {
-				my $dequoted = $suggested_email;
-				$dequoted =~ s/^"//;
-				$dequoted =~ s/" </ </;
-				# Don't force email to have quotes
-				# Allow just an angle bracketed address
-				if ("$dequoted$comment" ne $email &&
-				    "<$email_address>$comment" ne $email &&
-				    "$suggested_email$comment" ne $email) {
-					WARN("BAD_SIGN_OFF",
-					     "email address '$email' might be better as '$suggested_email$comment'\n" . $herecurr);
-				}
-			}
-		}
-
-# Check for wrappage within a valid hunk of the file
-		if ($realcnt != 0 && $line !~ m{^(?:\+|-| |\\ No newline|$)}) {
-			ERROR("CORRUPTED_PATCH",
-			      "patch seems to be corrupt (line wrapped?)\n" .
-				$herecurr) if (!$emitted_corrupt++);
-		}
-
-# Check for absolute kernel paths.
-		if ($tree) {
-			while ($line =~ m{(?:^|\s)(/\S*)}g) {
-				my $file = $1;
-
-				if ($file =~ m{^(.*?)(?::\d+)+:?$} &&
-				    check_absolute_file($1, $herecurr)) {
-					#
-				} else {
-					check_absolute_file($file, $herecurr);
-				}
-			}
-		}
-
-# UTF-8 regex found at http://www.w3.org/International/questions/qa-forms-utf-8.en.php
-		if (($realfile =~ /^$/ || $line =~ /^\+/) &&
-		    $rawline !~ m/^$UTF8*$/) {
-			my ($utf8_prefix) = ($rawline =~ /^($UTF8*)/);
-
-			my $blank = copy_spacing($rawline);
-			my $ptr = substr($blank, 0, length($utf8_prefix)) . "^";
-			my $hereptr = "$hereline$ptr\n";
-
-			CHK("INVALID_UTF8",
-			    "Invalid UTF-8, patch and commit message should be encoded in UTF-8\n" . $hereptr);
-		}
-
-# Check if it's the start of a commit log
-# (not a header line and we haven't seen the patch filename)
-		if ($in_header_lines && $realfile =~ /^$/ &&
-		    $rawline !~ /^(commit\b|from\b|[\w-]+:).+$/i) {
-			$in_header_lines = 0;
-			$in_commit_log = 1;
-		}
-
-# Check if there is UTF-8 in a commit log when a mail header has explicitly
-# declined it, i.e defined some charset where it is missing.
-		if ($in_header_lines &&
-		    $rawline =~ /^Content-Type:.+charset="(.+)".*$/ &&
-		    $1 !~ /utf-8/i) {
-			$non_utf8_charset = 1;
-		}
-
-		if ($in_commit_log && $non_utf8_charset && $realfile =~ /^$/ &&
-		    $rawline =~ /$NON_ASCII_UTF8/) {
-			WARN("UTF8_BEFORE_PATCH",
-			    "8-bit UTF-8 used in possible commit log\n" . $herecurr);
-		}
-
-# ignore non-hunk lines and lines being removed
-		next if (!$hunk_line || $line =~ /^-/);
-
-#trailing whitespace
-		if ($line =~ /^\+.*\015/) {
-			my $herevet = "$here\n" . cat_vet($rawline) . "\n";
-			ERROR("DOS_LINE_ENDINGS",
-			      "DOS line endings\n" . $herevet);
-
-		} elsif ($rawline =~ /^\+.*\S\s+$/ || $rawline =~ /^\+\s+$/) {
-			my $herevet = "$here\n" . cat_vet($rawline) . "\n";
-			ERROR("TRAILING_WHITESPACE",
-			      "trailing whitespace\n" . $herevet);
-			$rpt_cleaners = 1;
-		}
-
-# check for Kconfig help text having a real description
-# Only applies when adding the entry originally, after that we do not have
-# sufficient context to determine whether it is indeed long enough.
-		if ($realfile =~ /Kconfig/ &&
-		    $line =~ /.\s*config\s+/) {
-			my $length = 0;
-			my $cnt = $realcnt;
-			my $ln = $linenr + 1;
-			my $f;
-			my $is_start = 0;
-			my $is_end = 0;
-			for (; $cnt > 0 && defined $lines[$ln - 1]; $ln++) {
-				$f = $lines[$ln - 1];
-				$cnt-- if ($lines[$ln - 1] !~ /^-/);
-				$is_end = $lines[$ln - 1] =~ /^\+/;
-
-				next if ($f =~ /^-/);
-
-				if ($lines[$ln - 1] =~ /.\s*(?:bool|tristate)\s*\"/) {
-					$is_start = 1;
-				} elsif ($lines[$ln - 1] =~ /.\s*(?:---)?help(?:---)?$/) {
-					$length = -1;
-				}
-
-				$f =~ s/^.//;
-				$f =~ s/#.*//;
-				$f =~ s/^\s+//;
-				next if ($f =~ /^$/);
-				if ($f =~ /^\s*config\s/) {
-					$is_end = 1;
-					last;
-				}
-				$length++;
-			}
-			WARN("CONFIG_DESCRIPTION",
-			     "please write a paragraph that describes the config symbol fully\n" . $herecurr) if ($is_start && $is_end && $length < 4);
-			#print "is_start<$is_start> is_end<$is_end> length<$length>\n";
-		}
-
-# discourage the addition of CONFIG_EXPERIMENTAL in Kconfig.
-		if ($realfile =~ /Kconfig/ &&
-		    $line =~ /.\s*depends on\s+.*\bEXPERIMENTAL\b/) {
-			WARN("CONFIG_EXPERIMENTAL",
-			     "Use of CONFIG_EXPERIMENTAL is deprecated. For alternatives, see https://lkml.org/lkml/2012/10/23/580\n");
-		}
-
-		if (($realfile =~ /Makefile.*/ || $realfile =~ /Kbuild.*/) &&
-		    ($line =~ /\+(EXTRA_[A-Z]+FLAGS).*/)) {
-			my $flag = $1;
-			my $replacement = {
-				'EXTRA_AFLAGS' =>   'asflags-y',
-				'EXTRA_CFLAGS' =>   'ccflags-y',
-				'EXTRA_CPPFLAGS' => 'cppflags-y',
-				'EXTRA_LDFLAGS' =>  'ldflags-y',
-			};
-
-			WARN("DEPRECATED_VARIABLE",
-			     "Use of $flag is deprecated, please use \`$replacement->{$flag} instead.\n" . $herecurr) if ($replacement->{$flag});
-		}
-
-# check we are in a valid source file if not then ignore this hunk
-		next if ($realfile !~ /\.(h|c|s|S|pl|sh)$/);
-
-#line length limit
-		if ($line =~ /^\+/ && $prevrawline !~ /\/\*\*/ &&
-		    $rawline !~ /^.\s*\*\s*\@$Ident\s/ &&
-		    !($line =~ /^\+\s*$logFunctions\s*\(\s*(?:(KERN_\S+\s*|[^"]*))?"[X\t]*"\s*(?:|,|\)\s*;)\s*$/ ||
-		    $line =~ /^\+\s*"[^"]*"\s*(?:\s*|,|\)\s*;)\s*$/) &&
-		    $length > $max_line_length)
-		{
-			WARN("LONG_LINE",
-			     "line over $max_line_length characters\n" . $herecurr);
-		}
-
-# Check for user-visible strings broken across lines, which breaks the ability
-# to grep for the string.  Limited to strings used as parameters (those
-# following an open parenthesis), which almost completely eliminates false
-# positives, as well as warning only once per parameter rather than once per
-# line of the string.  Make an exception when the previous string ends in a
-# newline (multiple lines in one string constant) or \n\t (common in inline
-# assembly to indent the instruction on the following line).
-		if ($line =~ /^\+\s*"/ &&
-		    $prevline =~ /"\s*$/ &&
-		    $prevline =~ /\(/ &&
-		    $prevrawline !~ /\\n(?:\\t)*"\s*$/) {
-			WARN("SPLIT_STRING",
-			     "quoted string split across lines\n" . $hereprev);
-		}
-
-# check for spaces before a quoted newline
-		if ($rawline =~ /^.*\".*\s\\n/) {
-			WARN("QUOTED_WHITESPACE_BEFORE_NEWLINE",
-			     "unnecessary whitespace before a quoted newline\n" . $herecurr);
-		}
-
-# check for adding lines without a newline.
-		if ($line =~ /^\+/ && defined $lines[$linenr] && $lines[$linenr] =~ /^\\ No newline at end of file/) {
-			WARN("MISSING_EOF_NEWLINE",
-			     "adding a line without newline at end of file\n" . $herecurr);
-		}
-
-# Blackfin: use hi/lo macros
-		if ($realfile =~ m@arch/blackfin/.*\.S$@) {
-			if ($line =~ /\.[lL][[:space:]]*=.*&[[:space:]]*0x[fF][fF][fF][fF]/) {
-				my $herevet = "$here\n" . cat_vet($line) . "\n";
-				ERROR("LO_MACRO",
-				      "use the LO() macro, not (... & 0xFFFF)\n" . $herevet);
-			}
-			if ($line =~ /\.[hH][[:space:]]*=.*>>[[:space:]]*16/) {
-				my $herevet = "$here\n" . cat_vet($line) . "\n";
-				ERROR("HI_MACRO",
-				      "use the HI() macro, not (... >> 16)\n" . $herevet);
-			}
-		}
-
-# check we are in a valid source file C or perl if not then ignore this hunk
-		next if ($realfile !~ /\.(h|c|pl)$/);
-
-# at the beginning of a line any tabs must come first and anything
-# more than 8 must use tabs.
-		if ($rawline =~ /^\+\s* \t\s*\S/ ||
-		    $rawline =~ /^\+\s*        \s*/) {
-			my $herevet = "$here\n" . cat_vet($rawline) . "\n";
-			ERROR("CODE_INDENT",
-			      "code indent should use tabs where possible\n" . $herevet);
-			$rpt_cleaners = 1;
-		}
-
-# check for space before tabs.
-		if ($rawline =~ /^\+/ && $rawline =~ / \t/) {
-			my $herevet = "$here\n" . cat_vet($rawline) . "\n";
-			WARN("SPACE_BEFORE_TAB",
-			     "please, no space before tabs\n" . $herevet);
-		}
-
-# check for && or || at the start of a line
-		if ($rawline =~ /^\+\s*(&&|\|\|)/) {
-			CHK("LOGICAL_CONTINUATIONS",
-			    "Logical continuations should be on the previous line\n" . $hereprev);
-		}
-
-# check multi-line statement indentation matches previous line
-		if ($^V && $^V ge 5.10.0 &&
-		    $prevline =~ /^\+(\t*)(if \(|$Ident\().*(\&\&|\|\||,)\s*$/) {
-			$prevline =~ /^\+(\t*)(.*)$/;
-			my $oldindent = $1;
-			my $rest = $2;
-
-			my $pos = pos_last_openparen($rest);
-			if ($pos >= 0) {
-				$line =~ /^(\+| )([ \t]*)/;
-				my $newindent = $2;
-
-				my $goodtabindent = $oldindent .
-					"\t" x ($pos / 8) .
-					" "  x ($pos % 8);
-				my $goodspaceindent = $oldindent . " "  x $pos;
-
-				if ($newindent ne $goodtabindent &&
-				    $newindent ne $goodspaceindent) {
-					CHK("PARENTHESIS_ALIGNMENT",
-					    "Alignment should match open parenthesis\n" . $hereprev);
-				}
-			}
-		}
-
-		if ($line =~ /^\+.*\*[ \t]*\)[ \t]+/) {
-			CHK("SPACING",
-			    "No space is necessary after a cast\n" . $hereprev);
-		}
-
-		if ($realfile =~ m@^(drivers/net/|net/)@ &&
-		    $rawline =~ /^\+[ \t]*\/\*[ \t]*$/ &&
-		    $prevrawline =~ /^\+[ \t]*$/) {
-			WARN("NETWORKING_BLOCK_COMMENT_STYLE",
-			     "networking block comments don't use an empty /* line, use /* Comment...\n" . $hereprev);
-		}
-
-		if ($realfile =~ m@^(drivers/net/|net/)@ &&
-		    $rawline !~ m@^\+[ \t]*\*/[ \t]*$@ &&	#trailing */
-		    $rawline !~ m@^\+.*/\*.*\*/[ \t]*$@ &&	#inline /*...*/
-		    $rawline !~ m@^\+.*\*{2,}/[ \t]*$@ &&	#trailing **/
-		    $rawline =~ m@^\+[ \t]*.+\*\/[ \t]*$@) {	#non blank */
-			WARN("NETWORKING_BLOCK_COMMENT_STYLE",
-			     "networking block comments put the trailing */ on a separate line\n" . $herecurr);
-		}
-
-# check for spaces at the beginning of a line.
-# Exceptions:
-#  1) within comments
-#  2) indented preprocessor commands
-#  3) hanging labels
-		if ($rawline =~ /^\+ / && $line !~ /\+ *(?:$;|#|$Ident:)/)  {
-			my $herevet = "$here\n" . cat_vet($rawline) . "\n";
-			WARN("LEADING_SPACE",
-			     "please, no spaces at the start of a line\n" . $herevet);
-		}
-
-# check we are in a valid C source file if not then ignore this hunk
-		next if ($realfile !~ /\.(h|c)$/);
-
-# discourage the addition of CONFIG_EXPERIMENTAL in #if(def).
-		if ($line =~ /^\+\s*\#\s*if.*\bCONFIG_EXPERIMENTAL\b/) {
-			WARN("CONFIG_EXPERIMENTAL",
-			     "Use of CONFIG_EXPERIMENTAL is deprecated. For alternatives, see https://lkml.org/lkml/2012/10/23/580\n");
-		}
-
-# check for RCS/CVS revision markers
-		if ($rawline =~ /^\+.*\$(Revision|Log|Id)(?:\$|)/) {
-			WARN("CVS_KEYWORD",
-			     "CVS style keyword markers, these will _not_ be updated\n". $herecurr);
-		}
-
-# Blackfin: don't use __builtin_bfin_[cs]sync
-		if ($line =~ /__builtin_bfin_csync/) {
-			my $herevet = "$here\n" . cat_vet($line) . "\n";
-			ERROR("CSYNC",
-			      "use the CSYNC() macro in asm/blackfin.h\n" . $herevet);
-		}
-		if ($line =~ /__builtin_bfin_ssync/) {
-			my $herevet = "$here\n" . cat_vet($line) . "\n";
-			ERROR("SSYNC",
-			      "use the SSYNC() macro in asm/blackfin.h\n" . $herevet);
-		}
-
-# check for old HOTPLUG __dev<foo> section markings
-		if ($line =~ /\b(__dev(init|exit)(data|const|))\b/) {
-			WARN("HOTPLUG_SECTION",
-			     "Using $1 is unnecessary\n" . $herecurr);
-		}
-
-# Check for potential 'bare' types
-		my ($stat, $cond, $line_nr_next, $remain_next, $off_next,
-		    $realline_next);
-#print "LINE<$line>\n";
-		if ($linenr >= $suppress_statement &&
-		    $realcnt && $line =~ /.\s*\S/) {
-			($stat, $cond, $line_nr_next, $remain_next, $off_next) =
-				ctx_statement_block($linenr, $realcnt, 0);
-			$stat =~ s/\n./\n /g;
-			$cond =~ s/\n./\n /g;
-
-#print "linenr<$linenr> <$stat>\n";
-			# If this statement has no statement boundaries within
-			# it there is no point in retrying a statement scan
-			# until we hit end of it.
-			my $frag = $stat; $frag =~ s/;+\s*$//;
-			if ($frag !~ /(?:{|;)/) {
-#print "skip<$line_nr_next>\n";
-				$suppress_statement = $line_nr_next;
-			}
-
-			# Find the real next line.
-			$realline_next = $line_nr_next;
-			if (defined $realline_next &&
-			    (!defined $lines[$realline_next - 1] ||
-			     substr($lines[$realline_next - 1], $off_next) =~ /^\s*$/)) {
-				$realline_next++;
-			}
-
-			my $s = $stat;
-			$s =~ s/{.*$//s;
-
-			# Ignore goto labels.
-			if ($s =~ /$Ident:\*$/s) {
-
-			# Ignore functions being called
-			} elsif ($s =~ /^.\s*$Ident\s*\(/s) {
-
-			} elsif ($s =~ /^.\s*else\b/s) {
-
-			# declarations always start with types
-			} elsif ($prev_values eq 'E' && $s =~ /^.\s*(?:$Storage\s+)?(?:$Inline\s+)?(?:const\s+)?((?:\s*$Ident)+?)\b(?:\s+$Sparse)?\s*\**\s*(?:$Ident|\(\*[^\)]*\))(?:\s*$Modifier)?\s*(?:;|=|,|\()/s) {
-				my $type = $1;
-				$type =~ s/\s+/ /g;
-				possible($type, "A:" . $s);
-
-			# definitions in global scope can only start with types
-			} elsif ($s =~ /^.(?:$Storage\s+)?(?:$Inline\s+)?(?:const\s+)?($Ident)\b\s*(?!:)/s) {
-				possible($1, "B:" . $s);
-			}
-
-			# any (foo ... *) is a pointer cast, and foo is a type
-			while ($s =~ /\(($Ident)(?:\s+$Sparse)*[\s\*]+\s*\)/sg) {
-				possible($1, "C:" . $s);
-			}
-
-			# Check for any sort of function declaration.
-			# int foo(something bar, other baz);
-			# void (*store_gdt)(x86_descr_ptr *);
-			if ($prev_values eq 'E' && $s =~ /^(.(?:typedef\s*)?(?:(?:$Storage|$Inline)\s*)*\s*$Type\s*(?:\b$Ident|\(\*\s*$Ident\))\s*)\(/s) {
-				my ($name_len) = length($1);
-
-				my $ctx = $s;
-				substr($ctx, 0, $name_len + 1, '');
-				$ctx =~ s/\)[^\)]*$//;
-
-				for my $arg (split(/\s*,\s*/, $ctx)) {
-					if ($arg =~ /^(?:const\s+)?($Ident)(?:\s+$Sparse)*\s*\**\s*(:?\b$Ident)?$/s || $arg =~ /^($Ident)$/s) {
-
-						possible($1, "D:" . $s);
-					}
-				}
-			}
-
-		}
-
-#
-# Checks which may be anchored in the context.
-#
-
-# Check for switch () and associated case and default
-# statements should be at the same indent.
-		if ($line=~/\bswitch\s*\(.*\)/) {
-			my $err = '';
-			my $sep = '';
-			my @ctx = ctx_block_outer($linenr, $realcnt);
-			shift(@ctx);
-			for my $ctx (@ctx) {
-				my ($clen, $cindent) = line_stats($ctx);
-				if ($ctx =~ /^\+\s*(case\s+|default:)/ &&
-							$indent != $cindent) {
-					$err .= "$sep$ctx\n";
-					$sep = '';
-				} else {
-					$sep = "[...]\n";
-				}
-			}
-			if ($err ne '') {
-				ERROR("SWITCH_CASE_INDENT_LEVEL",
-				      "switch and case should be at the same indent\n$hereline$err");
-			}
-		}
-
-# if/while/etc brace do not go on next line, unless defining a do while loop,
-# or if that brace on the next line is for something else
-		if ($line =~ /(.*)\b((?:if|while|for|switch)\s*\(|do\b|else\b)/ && $line !~ /^.\s*\#/) {
-			my $pre_ctx = "$1$2";
-
-			my ($level, @ctx) = ctx_statement_level($linenr, $realcnt, 0);
-
-			if ($line =~ /^\+\t{6,}/) {
-				WARN("DEEP_INDENTATION",
-				     "Too many leading tabs - consider code refactoring\n" . $herecurr);
-			}
-
-			my $ctx_cnt = $realcnt - $#ctx - 1;
-			my $ctx = join("\n", @ctx);
-
-			my $ctx_ln = $linenr;
-			my $ctx_skip = $realcnt;
-
-			while ($ctx_skip > $ctx_cnt || ($ctx_skip == $ctx_cnt &&
-					defined $lines[$ctx_ln - 1] &&
-					$lines[$ctx_ln - 1] =~ /^-/)) {
-				##print "SKIP<$ctx_skip> CNT<$ctx_cnt>\n";
-				$ctx_skip-- if (!defined $lines[$ctx_ln - 1] || $lines[$ctx_ln - 1] !~ /^-/);
-				$ctx_ln++;
-			}
-
-			#print "realcnt<$realcnt> ctx_cnt<$ctx_cnt>\n";
-			#print "pre<$pre_ctx>\nline<$line>\nctx<$ctx>\nnext<$lines[$ctx_ln - 1]>\n";
-
-			if ($ctx !~ /{\s*/ && defined($lines[$ctx_ln -1]) && $lines[$ctx_ln - 1] =~ /^\+\s*{/) {
-				ERROR("OPEN_BRACE",
-				      "that open brace { should be on the previous line\n" .
-					"$here\n$ctx\n$rawlines[$ctx_ln - 1]\n");
-			}
-			if ($level == 0 && $pre_ctx !~ /}\s*while\s*\($/ &&
-			    $ctx =~ /\)\s*\;\s*$/ &&
-			    defined $lines[$ctx_ln - 1])
-			{
-				my ($nlength, $nindent) = line_stats($lines[$ctx_ln - 1]);
-				if ($nindent > $indent) {
-					WARN("TRAILING_SEMICOLON",
-					     "trailing semicolon indicates no statements, indent implies otherwise\n" .
-						"$here\n$ctx\n$rawlines[$ctx_ln - 1]\n");
-				}
-			}
-		}
-
-# Check relative indent for conditionals and blocks.
-		if ($line =~ /\b(?:(?:if|while|for)\s*\(|do\b)/ && $line !~ /^.\s*#/ && $line !~ /\}\s*while\s*/) {
-			($stat, $cond, $line_nr_next, $remain_next, $off_next) =
-				ctx_statement_block($linenr, $realcnt, 0)
-					if (!defined $stat);
-			my ($s, $c) = ($stat, $cond);
-
-			substr($s, 0, length($c), '');
-
-			# Make sure we remove the line prefixes as we have
-			# none on the first line, and are going to readd them
-			# where necessary.
-			$s =~ s/\n./\n/gs;
-
-			# Find out how long the conditional actually is.
-			my @newlines = ($c =~ /\n/gs);
-			my $cond_lines = 1 + $#newlines;
-
-			# We want to check the first line inside the block
-			# starting at the end of the conditional, so remove:
-			#  1) any blank line termination
-			#  2) any opening brace { on end of the line
-			#  3) any do (...) {
-			my $continuation = 0;
-			my $check = 0;
-			$s =~ s/^.*\bdo\b//;
-			$s =~ s/^\s*{//;
-			if ($s =~ s/^\s*\\//) {
-				$continuation = 1;
-			}
-			if ($s =~ s/^\s*?\n//) {
-				$check = 1;
-				$cond_lines++;
-			}
-
-			# Also ignore a loop construct at the end of a
-			# preprocessor statement.
-			if (($prevline =~ /^.\s*#\s*define\s/ ||
-			    $prevline =~ /\\\s*$/) && $continuation == 0) {
-				$check = 0;
-			}
-
-			my $cond_ptr = -1;
-			$continuation = 0;
-			while ($cond_ptr != $cond_lines) {
-				$cond_ptr = $cond_lines;
-
-				# If we see an #else/#elif then the code
-				# is not linear.
-				if ($s =~ /^\s*\#\s*(?:else|elif)/) {
-					$check = 0;
-				}
-
-				# Ignore:
-				#  1) blank lines, they should be at 0,
-				#  2) preprocessor lines, and
-				#  3) labels.
-				if ($continuation ||
-				    $s =~ /^\s*?\n/ ||
-				    $s =~ /^\s*#\s*?/ ||
-				    $s =~ /^\s*$Ident\s*:/) {
-					$continuation = ($s =~ /^.*?\\\n/) ? 1 : 0;
-					if ($s =~ s/^.*?\n//) {
-						$cond_lines++;
-					}
-				}
-			}
-
-			my (undef, $sindent) = line_stats("+" . $s);
-			my $stat_real = raw_line($linenr, $cond_lines);
-
-			# Check if either of these lines are modified, else
-			# this is not this patch's fault.
-			if (!defined($stat_real) ||
-			    $stat !~ /^\+/ && $stat_real !~ /^\+/) {
-				$check = 0;
-			}
-			if (defined($stat_real) && $cond_lines > 1) {
-				$stat_real = "[...]\n$stat_real";
-			}
-
-			#print "line<$line> prevline<$prevline> indent<$indent> sindent<$sindent> check<$check> continuation<$continuation> s<$s> cond_lines<$cond_lines> stat_real<$stat_real> stat<$stat>\n";
-
-			if ($check && (($sindent % 8) != 0 ||
-			    ($sindent <= $indent && $s ne ''))) {
-				WARN("SUSPECT_CODE_INDENT",
-				     "suspect code indent for conditional statements ($indent, $sindent)\n" . $herecurr . "$stat_real\n");
-			}
-		}
-
-		# Track the 'values' across context and added lines.
-		my $opline = $line; $opline =~ s/^./ /;
-		my ($curr_values, $curr_vars) =
-				annotate_values($opline . "\n", $prev_values);
-		$curr_values = $prev_values . $curr_values;
-		if ($dbg_values) {
-			my $outline = $opline; $outline =~ s/\t/ /g;
-			print "$linenr > .$outline\n";
-			print "$linenr > $curr_values\n";
-			print "$linenr >  $curr_vars\n";
-		}
-		$prev_values = substr($curr_values, -1);
-
-#ignore lines not being added
-		if ($line=~/^[^\+]/) {next;}
-
-# TEST: allow direct testing of the type matcher.
-		if ($dbg_type) {
-			if ($line =~ /^.\s*$Declare\s*$/) {
-				ERROR("TEST_TYPE",
-				      "TEST: is type\n" . $herecurr);
-			} elsif ($dbg_type > 1 && $line =~ /^.+($Declare)/) {
-				ERROR("TEST_NOT_TYPE",
-				      "TEST: is not type ($1 is)\n". $herecurr);
-			}
-			next;
-		}
-# TEST: allow direct testing of the attribute matcher.
-		if ($dbg_attr) {
-			if ($line =~ /^.\s*$Modifier\s*$/) {
-				ERROR("TEST_ATTR",
-				      "TEST: is attr\n" . $herecurr);
-			} elsif ($dbg_attr > 1 && $line =~ /^.+($Modifier)/) {
-				ERROR("TEST_NOT_ATTR",
-				      "TEST: is not attr ($1 is)\n". $herecurr);
-			}
-			next;
-		}
-
-# check for initialisation to aggregates open brace on the next line
-		if ($line =~ /^.\s*{/ &&
-		    $prevline =~ /(?:^|[^=])=\s*$/) {
-			ERROR("OPEN_BRACE",
-			      "that open brace { should be on the previous line\n" . $hereprev);
-		}
-
-#
-# Checks which are anchored on the added line.
-#
-
-# check for malformed paths in #include statements (uses RAW line)
-		if ($rawline =~ m{^.\s*\#\s*include\s+[<"](.*)[">]}) {
-			my $path = $1;
-			if ($path =~ m{//}) {
-				ERROR("MALFORMED_INCLUDE",
-				      "malformed #include filename\n" . $herecurr);
-			}
-			if ($path =~ "^uapi/" && $realfile =~ m@\binclude/uapi/@) {
-				ERROR("UAPI_INCLUDE",
-				      "No #include in ...include/uapi/... should use a uapi/ path prefix\n" . $herecurr);
-			}
-		}
-
-# no C99 // comments
-		if ($line =~ m{//}) {
-			ERROR("C99_COMMENTS",
-			      "do not use C99 // comments\n" . $herecurr);
-		}
-		# Remove C99 comments.
-		$line =~ s@//.*@@;
-		$opline =~ s@//.*@@;
-
-# EXPORT_SYMBOL should immediately follow the thing it is exporting, consider
-# the whole statement.
-#print "APW <$lines[$realline_next - 1]>\n";
-		if (defined $realline_next &&
-		    exists $lines[$realline_next - 1] &&
-		    !defined $suppress_export{$realline_next} &&
-		    ($lines[$realline_next - 1] =~ /EXPORT_SYMBOL.*\((.*)\)/ ||
-		     $lines[$realline_next - 1] =~ /EXPORT_UNUSED_SYMBOL.*\((.*)\)/)) {
-			# Handle definitions which produce identifiers with
-			# a prefix:
-			#   XXX(foo);
-			#   EXPORT_SYMBOL(something_foo);
-			my $name = $1;
-			if ($stat =~ /^(?:.\s*}\s*\n)?.([A-Z_]+)\s*\(\s*($Ident)/ &&
-			    $name =~ /^${Ident}_$2/) {
-#print "FOO C name<$name>\n";
-				$suppress_export{$realline_next} = 1;
-
-			} elsif ($stat !~ /(?:
-				\n.}\s*$|
-				^.DEFINE_$Ident\(\Q$name\E\)|
-				^.DECLARE_$Ident\(\Q$name\E\)|
-				^.LIST_HEAD\(\Q$name\E\)|
-				^.(?:$Storage\s+)?$Type\s*\(\s*\*\s*\Q$name\E\s*\)\s*\(|
-				\b\Q$name\E(?:\s+$Attribute)*\s*(?:;|=|\[|\()
-			    )/x) {
-#print "FOO A<$lines[$realline_next - 1]> stat<$stat> name<$name>\n";
-				$suppress_export{$realline_next} = 2;
-			} else {
-				$suppress_export{$realline_next} = 1;
-			}
-		}
-		if (!defined $suppress_export{$linenr} &&
-		    $prevline =~ /^.\s*$/ &&
-		    ($line =~ /EXPORT_SYMBOL.*\((.*)\)/ ||
-		     $line =~ /EXPORT_UNUSED_SYMBOL.*\((.*)\)/)) {
-#print "FOO B <$lines[$linenr - 1]>\n";
-			$suppress_export{$linenr} = 2;
-		}
-		if (defined $suppress_export{$linenr} &&
-		    $suppress_export{$linenr} == 2) {
-			WARN("EXPORT_SYMBOL",
-			     "EXPORT_SYMBOL(foo); should immediately follow its function/variable\n" . $herecurr);
-		}
-
-# check for global initialisers.
-		if ($line =~ /^.$Type\s*$Ident\s*(?:\s+$Modifier)*\s*=\s*(0|NULL|false)\s*;/) {
-			ERROR("GLOBAL_INITIALISERS",
-			      "do not initialise globals to 0 or NULL\n" .
-				$herecurr);
-		}
-# check for static initialisers.
-		if ($line =~ /\bstatic\s.*=\s*(0|NULL|false)\s*;/) {
-			ERROR("INITIALISED_STATIC",
-			      "do not initialise statics to 0 or NULL\n" .
-				$herecurr);
-		}
-
-# check for static const char * arrays.
-		if ($line =~ /\bstatic\s+const\s+char\s*\*\s*(\w+)\s*\[\s*\]\s*=\s*/) {
-			WARN("STATIC_CONST_CHAR_ARRAY",
-			     "static const char * array should probably be static const char * const\n" .
-				$herecurr);
-               }
-
-# check for static char foo[] = "bar" declarations.
-		if ($line =~ /\bstatic\s+char\s+(\w+)\s*\[\s*\]\s*=\s*"/) {
-			WARN("STATIC_CONST_CHAR_ARRAY",
-			     "static char array declaration should probably be static const char\n" .
-				$herecurr);
-               }
-
-# check for declarations of struct pci_device_id
-		if ($line =~ /\bstruct\s+pci_device_id\s+\w+\s*\[\s*\]\s*\=\s*\{/) {
-			WARN("DEFINE_PCI_DEVICE_TABLE",
-			     "Use DEFINE_PCI_DEVICE_TABLE for struct pci_device_id\n" . $herecurr);
-		}
-
-# check for new typedefs, only function parameters and sparse annotations
-# make sense.
-		if ($line =~ /\btypedef\s/ &&
-		    $line !~ /\btypedef\s+$Type\s*\(\s*\*?$Ident\s*\)\s*\(/ &&
-		    $line !~ /\btypedef\s+$Type\s+$Ident\s*\(/ &&
-		    $line !~ /\b$typeTypedefs\b/ &&
-		    $line !~ /\b__bitwise(?:__|)\b/) {
-			WARN("NEW_TYPEDEFS",
-			     "do not add new typedefs\n" . $herecurr);
-		}
-
-# * goes on variable not on type
-		# (char*[ const])
-		while ($line =~ m{(\($NonptrType(\s*(?:$Modifier\b\s*|\*\s*)+)\))}g) {
-			#print "AA<$1>\n";
-			my ($from, $to) = ($2, $2);
-
-			# Should start with a space.
-			$to =~ s/^(\S)/ $1/;
-			# Should not end with a space.
-			$to =~ s/\s+$//;
-			# '*'s should not have spaces between.
-			while ($to =~ s/\*\s+\*/\*\*/) {
-			}
-
-			#print "from<$from> to<$to>\n";
-			if ($from ne $to) {
-				ERROR("POINTER_LOCATION",
-				      "\"(foo$from)\" should be \"(foo$to)\"\n" .  $herecurr);
-			}
-		}
-		while ($line =~ m{(\b$NonptrType(\s*(?:$Modifier\b\s*|\*\s*)+)($Ident))}g) {
-			#print "BB<$1>\n";
-			my ($from, $to, $ident) = ($2, $2, $3);
-
-			# Should start with a space.
-			$to =~ s/^(\S)/ $1/;
-			# Should not end with a space.
-			$to =~ s/\s+$//;
-			# '*'s should not have spaces between.
-			while ($to =~ s/\*\s+\*/\*\*/) {
-			}
-			# Modifiers should have spaces.
-			$to =~ s/(\b$Modifier$)/$1 /;
-
-			#print "from<$from> to<$to> ident<$ident>\n";
-			if ($from ne $to && $ident !~ /^$Modifier$/) {
-				ERROR("POINTER_LOCATION",
-				      "\"foo${from}bar\" should be \"foo${to}bar\"\n" .  $herecurr);
-			}
-		}
-
-# # no BUG() or BUG_ON()
-# 		if ($line =~ /\b(BUG|BUG_ON)\b/) {
-# 			print "Try to use WARN_ON & Recovery code rather than BUG() or BUG_ON()\n";
-# 			print "$herecurr";
-# 			$clean = 0;
-# 		}
-
-		if ($line =~ /\bLINUX_VERSION_CODE\b/) {
-			WARN("LINUX_VERSION_CODE",
-			     "LINUX_VERSION_CODE should be avoided, code should be for the version to which it is merged\n" . $herecurr);
-		}
-
-# check for uses of printk_ratelimit
-		if ($line =~ /\bprintk_ratelimit\s*\(/) {
-			WARN("PRINTK_RATELIMITED",
-"Prefer printk_ratelimited or pr_<level>_ratelimited to printk_ratelimit\n" . $herecurr);
-		}
-
-# printk should use KERN_* levels.  Note that follow on printk's on the
-# same line do not need a level, so we use the current block context
-# to try and find and validate the current printk.  In summary the current
-# printk includes all preceding printk's which have no newline on the end.
-# we assume the first bad printk is the one to report.
-		if ($line =~ /\bprintk\((?!KERN_)\s*"/) {
-			my $ok = 0;
-			for (my $ln = $linenr - 1; $ln >= $first_line; $ln--) {
-				#print "CHECK<$lines[$ln - 1]\n";
-				# we have a preceding printk if it ends
-				# with "\n" ignore it, else it is to blame
-				if ($lines[$ln - 1] =~ m{\bprintk\(}) {
-					if ($rawlines[$ln - 1] !~ m{\\n"}) {
-						$ok = 1;
-					}
-					last;
-				}
-			}
-			if ($ok == 0) {
-				WARN("PRINTK_WITHOUT_KERN_LEVEL",
-				     "printk() should include KERN_ facility level\n" . $herecurr);
-			}
-		}
-
-		if ($line =~ /\bprintk\s*\(\s*KERN_([A-Z]+)/) {
-			my $orig = $1;
-			my $level = lc($orig);
-			$level = "warn" if ($level eq "warning");
-			my $level2 = $level;
-			$level2 = "dbg" if ($level eq "debug");
-			WARN("PREFER_PR_LEVEL",
-			     "Prefer netdev_$level2(netdev, ... then dev_$level2(dev, ... then pr_$level(...  to printk(KERN_$orig ...\n" . $herecurr);
-		}
-
-		if ($line =~ /\bpr_warning\s*\(/) {
-			WARN("PREFER_PR_LEVEL",
-			     "Prefer pr_warn(... to pr_warning(...\n" . $herecurr);
-		}
-
-		if ($line =~ /\bdev_printk\s*\(\s*KERN_([A-Z]+)/) {
-			my $orig = $1;
-			my $level = lc($orig);
-			$level = "warn" if ($level eq "warning");
-			$level = "dbg" if ($level eq "debug");
-			WARN("PREFER_DEV_LEVEL",
-			     "Prefer dev_$level(... to dev_printk(KERN_$orig, ...\n" . $herecurr);
-		}
-
-# function brace can't be on same line, except for #defines of do while,
-# or if closed on same line
-		if (($line=~/$Type\s*$Ident\(.*\).*\s{/) and
-		    !($line=~/\#\s*define.*do\s{/) and !($line=~/}/)) {
-			ERROR("OPEN_BRACE",
-			      "open brace '{' following function declarations go on the next line\n" . $herecurr);
-		}
-
-# open braces for enum, union and struct go on the same line.
-		if ($line =~ /^.\s*{/ &&
-		    $prevline =~ /^.\s*(?:typedef\s+)?(enum|union|struct)(?:\s+$Ident)?\s*$/) {
-			ERROR("OPEN_BRACE",
-			      "open brace '{' following $1 go on the same line\n" . $hereprev);
-		}
-
-# missing space after union, struct or enum definition
-		if ($line =~ /^.\s*(?:typedef\s+)?(enum|union|struct)(?:\s+$Ident)?(?:\s+$Ident)?[=\{]/) {
-		    WARN("SPACING",
-			 "missing space after $1 definition\n" . $herecurr);
-		}
-
-# check for spacing round square brackets; allowed:
-#  1. with a type on the left -- int [] a;
-#  2. at the beginning of a line for slice initialisers -- [0...10] = 5,
-#  3. inside a curly brace -- = { [0...10] = 5 }
-		while ($line =~ /(.*?\s)\[/g) {
-			my ($where, $prefix) = ($-[1], $1);
-			if ($prefix !~ /$Type\s+$/ &&
-			    ($where != 0 || $prefix !~ /^.\s+$/) &&
-			    $prefix !~ /[{,]\s+$/) {
-				ERROR("BRACKET_SPACE",
-				      "space prohibited before open square bracket '['\n" . $herecurr);
-			}
-		}
-
-# check for spaces between functions and their parentheses.
-		while ($line =~ /($Ident)\s+\(/g) {
-			my $name = $1;
-			my $ctx_before = substr($line, 0, $-[1]);
-			my $ctx = "$ctx_before$name";
-
-			# Ignore those directives where spaces _are_ permitted.
-			if ($name =~ /^(?:
-				if|for|while|switch|return|case|
-				volatile|__volatile__|
-				__attribute__|format|__extension__|
-				asm|__asm__)$/x)
-			{
-
-			# cpp #define statements have non-optional spaces, ie
-			# if there is a space between the name and the open
-			# parenthesis it is simply not a parameter group.
-			} elsif ($ctx_before =~ /^.\s*\#\s*define\s*$/) {
-
-			# cpp #elif statement condition may start with a (
-			} elsif ($ctx =~ /^.\s*\#\s*elif\s*$/) {
-
-			# If this whole things ends with a type its most
-			# likely a typedef for a function.
-			} elsif ($ctx =~ /$Type$/) {
-
-			} else {
-				WARN("SPACING",
-				     "space prohibited between function name and open parenthesis '('\n" . $herecurr);
-			}
-		}
-
-# check for whitespace before a non-naked semicolon
-		if ($line =~ /^\+.*\S\s+;/) {
-			CHK("SPACING",
-			    "space prohibited before semicolon\n" . $herecurr);
-		}
-
-# Check operator spacing.
-		if (!($line=~/\#\s*include/)) {
-			my $ops = qr{
-				<<=|>>=|<=|>=|==|!=|
-				\+=|-=|\*=|\/=|%=|\^=|\|=|&=|
-				=>|->|<<|>>|<|>|=|!|~|
-				&&|\|\||,|\^|\+\+|--|&|\||\+|-|\*|\/|%|
-				\?|:
-			}x;
-			my @elements = split(/($ops|;)/, $opline);
-			my $off = 0;
-
-			my $blank = copy_spacing($opline);
-
-			for (my $n = 0; $n < $#elements; $n += 2) {
-				$off += length($elements[$n]);
-
-				# Pick up the preceding and succeeding characters.
-				my $ca = substr($opline, 0, $off);
-				my $cc = '';
-				if (length($opline) >= ($off + length($elements[$n + 1]))) {
-					$cc = substr($opline, $off + length($elements[$n + 1]));
-				}
-				my $cb = "$ca$;$cc";
-
-				my $a = '';
-				$a = 'V' if ($elements[$n] ne '');
-				$a = 'W' if ($elements[$n] =~ /\s$/);
-				$a = 'C' if ($elements[$n] =~ /$;$/);
-				$a = 'B' if ($elements[$n] =~ /(\[|\()$/);
-				$a = 'O' if ($elements[$n] eq '');
-				$a = 'E' if ($ca =~ /^\s*$/);
-
-				my $op = $elements[$n + 1];
-
-				my $c = '';
-				if (defined $elements[$n + 2]) {
-					$c = 'V' if ($elements[$n + 2] ne '');
-					$c = 'W' if ($elements[$n + 2] =~ /^\s/);
-					$c = 'C' if ($elements[$n + 2] =~ /^$;/);
-					$c = 'B' if ($elements[$n + 2] =~ /^(\)|\]|;)/);
-					$c = 'O' if ($elements[$n + 2] eq '');
-					$c = 'E' if ($elements[$n + 2] =~ /^\s*\\$/);
-				} else {
-					$c = 'E';
-				}
-
-				my $ctx = "${a}x${c}";
-
-				my $at = "(ctx:$ctx)";
-
-				my $ptr = substr($blank, 0, $off) . "^";
-				my $hereptr = "$hereline$ptr\n";
-
-				# Pull out the value of this operator.
-				my $op_type = substr($curr_values, $off + 1, 1);
-
-				# Get the full operator variant.
-				my $opv = $op . substr($curr_vars, $off, 1);
-
-				# Ignore operators passed as parameters.
-				if ($op_type ne 'V' &&
-				    $ca =~ /\s$/ && $cc =~ /^\s*,/) {
-
-#				# Ignore comments
-#				} elsif ($op =~ /^$;+$/) {
-
-				# ; should have either the end of line or a space or \ after it
-				} elsif ($op eq ';') {
-					if ($ctx !~ /.x[WEBC]/ &&
-					    $cc !~ /^\\/ && $cc !~ /^;/) {
-						ERROR("SPACING",
-						      "space required after that '$op' $at\n" . $hereptr);
-					}
-
-				# // is a comment
-				} elsif ($op eq '//') {
-
-				# No spaces for:
-				#   ->
-				#   :   when part of a bitfield
-				} elsif ($op eq '->' || $opv eq ':B') {
-					if ($ctx =~ /Wx.|.xW/) {
-						ERROR("SPACING",
-						      "spaces prohibited around that '$op' $at\n" . $hereptr);
-					}
-
-				# , must have a space on the right.
-				} elsif ($op eq ',') {
-					if ($ctx !~ /.x[WEC]/ && $cc !~ /^}/) {
-						ERROR("SPACING",
-						      "space required after that '$op' $at\n" . $hereptr);
-					}
-
-				# '*' as part of a type definition -- reported already.
-				} elsif ($opv eq '*_') {
-					#warn "'*' is part of type\n";
-
-				# unary operators should have a space before and
-				# none after.  May be left adjacent to another
-				# unary operator, or a cast
-				} elsif ($op eq '!' || $op eq '~' ||
-					 $opv eq '*U' || $opv eq '-U' ||
-					 $opv eq '&U' || $opv eq '&&U') {
-					if ($ctx !~ /[WEBC]x./ && $ca !~ /(?:\)|!|~|\*|-|\&|\||\+\+|\-\-|\{)$/) {
-						ERROR("SPACING",
-						      "space required before that '$op' $at\n" . $hereptr);
-					}
-					if ($op eq '*' && $cc =~/\s*$Modifier\b/) {
-						# A unary '*' may be const
-
-					} elsif ($ctx =~ /.xW/) {
-						ERROR("SPACING",
-						      "space prohibited after that '$op' $at\n" . $hereptr);
-					}
-
-				# unary ++ and unary -- are allowed no space on one side.
-				} elsif ($op eq '++' or $op eq '--') {
-					if ($ctx !~ /[WEOBC]x[^W]/ && $ctx !~ /[^W]x[WOBEC]/) {
-						ERROR("SPACING",
-						      "space required one side of that '$op' $at\n" . $hereptr);
-					}
-					if ($ctx =~ /Wx[BE]/ ||
-					    ($ctx =~ /Wx./ && $cc =~ /^;/)) {
-						ERROR("SPACING",
-						      "space prohibited before that '$op' $at\n" . $hereptr);
-					}
-					if ($ctx =~ /ExW/) {
-						ERROR("SPACING",
-						      "space prohibited after that '$op' $at\n" . $hereptr);
-					}
-
-
-				# << and >> may either have or not have spaces both sides
-				} elsif ($op eq '<<' or $op eq '>>' or
-					 $op eq '&' or $op eq '^' or $op eq '|' or
-					 $op eq '+' or $op eq '-' or
-					 $op eq '*' or $op eq '/' or
-					 $op eq '%')
-				{
-					if ($ctx =~ /Wx[^WCE]|[^WCE]xW/) {
-						ERROR("SPACING",
-						      "need consistent spacing around '$op' $at\n" .
-							$hereptr);
-					}
-
-				# A colon needs no spaces before when it is
-				# terminating a case value or a label.
-				} elsif ($opv eq ':C' || $opv eq ':L') {
-					if ($ctx =~ /Wx./) {
-						ERROR("SPACING",
-						      "space prohibited before that '$op' $at\n" . $hereptr);
-					}
-
-				# All the others need spaces both sides.
-				} elsif ($ctx !~ /[EWC]x[CWE]/) {
-					my $ok = 0;
-
-					# Ignore email addresses <foo@bar>
-					if (($op eq '<' &&
-					     $cc =~ /^\S+\@\S+>/) ||
-					    ($op eq '>' &&
-					     $ca =~ /<\S+\@\S+$/))
-					{
-						$ok = 1;
-					}
-
-					# Ignore ?:
-					if (($opv eq ':O' && $ca =~ /\?$/) ||
-					    ($op eq '?' && $cc =~ /^:/)) {
-						$ok = 1;
-					}
-
-					if ($ok == 0) {
-						ERROR("SPACING",
-						      "spaces required around that '$op' $at\n" . $hereptr);
-					}
-				}
-				$off += length($elements[$n + 1]);
-			}
-		}
-
-# check for multiple assignments
-		if ($line =~ /^.\s*$Lval\s*=\s*$Lval\s*=(?!=)/) {
-			CHK("MULTIPLE_ASSIGNMENTS",
-			    "multiple assignments should be avoided\n" . $herecurr);
-		}
-
-## # check for multiple declarations, allowing for a function declaration
-## # continuation.
-## 		if ($line =~ /^.\s*$Type\s+$Ident(?:\s*=[^,{]*)?\s*,\s*$Ident.*/ &&
-## 		    $line !~ /^.\s*$Type\s+$Ident(?:\s*=[^,{]*)?\s*,\s*$Type\s*$Ident.*/) {
-##
-## 			# Remove any bracketed sections to ensure we do not
-## 			# falsly report the parameters of functions.
-## 			my $ln = $line;
-## 			while ($ln =~ s/\([^\(\)]*\)//g) {
-## 			}
-## 			if ($ln =~ /,/) {
-## 				WARN("MULTIPLE_DECLARATION",
-##				     "declaring multiple variables together should be avoided\n" . $herecurr);
-## 			}
-## 		}
-
-#need space before brace following if, while, etc
-		if (($line =~ /\(.*\){/ && $line !~ /\($Type\){/) ||
-		    $line =~ /do{/) {
-			ERROR("SPACING",
-			      "space required before the open brace '{'\n" . $herecurr);
-		}
-
-# closing brace should have a space following it when it has anything
-# on the line
-		if ($line =~ /}(?!(?:,|;|\)))\S/) {
-			ERROR("SPACING",
-			      "space required after that close brace '}'\n" . $herecurr);
-		}
-
-# check spacing on square brackets
-		if ($line =~ /\[\s/ && $line !~ /\[\s*$/) {
-			ERROR("SPACING",
-			      "space prohibited after that open square bracket '['\n" . $herecurr);
-		}
-		if ($line =~ /\s\]/) {
-			ERROR("SPACING",
-			      "space prohibited before that close square bracket ']'\n" . $herecurr);
-		}
-
-# check spacing on parentheses
-		if ($line =~ /\(\s/ && $line !~ /\(\s*(?:\\)?$/ &&
-		    $line !~ /for\s*\(\s+;/) {
-			ERROR("SPACING",
-			      "space prohibited after that open parenthesis '('\n" . $herecurr);
-		}
-		if ($line =~ /(\s+)\)/ && $line !~ /^.\s*\)/ &&
-		    $line !~ /for\s*\(.*;\s+\)/ &&
-		    $line !~ /:\s+\)/) {
-			ERROR("SPACING",
-			      "space prohibited before that close parenthesis ')'\n" . $herecurr);
-		}
-
-#goto labels aren't indented, allow a single space however
-		if ($line=~/^.\s+[A-Za-z\d_]+:(?![0-9]+)/ and
-		   !($line=~/^. [A-Za-z\d_]+:/) and !($line=~/^.\s+default:/)) {
-			WARN("INDENTED_LABEL",
-			     "labels should not be indented\n" . $herecurr);
-		}
-
-# Return is not a function.
-		if (defined($stat) && $stat =~ /^.\s*return(\s*)(\(.*);/s) {
-			my $spacing = $1;
-			my $value = $2;
-
-			# Flatten any parentheses
-			$value =~ s/\(/ \(/g;
-			$value =~ s/\)/\) /g;
-			while ($value =~ s/\[[^\[\]]*\]/1/ ||
-			       $value !~ /(?:$Ident|-?$Constant)\s*
-					     $Compare\s*
-					     (?:$Ident|-?$Constant)/x &&
-			       $value =~ s/\([^\(\)]*\)/1/) {
-			}
-#print "value<$value>\n";
-			if ($value =~ /^\s*(?:$Ident|-?$Constant)\s*$/) {
-				ERROR("RETURN_PARENTHESES",
-				      "return is not a function, parentheses are not required\n" . $herecurr);
-
-			} elsif ($spacing !~ /\s+/) {
-				ERROR("SPACING",
-				      "space required before the open parenthesis '('\n" . $herecurr);
-			}
-		}
-# Return of what appears to be an errno should normally be -'ve
-		if ($line =~ /^.\s*return\s*(E[A-Z]*)\s*;/) {
-			my $name = $1;
-			if ($name ne 'EOF' && $name ne 'ERROR') {
-				WARN("USE_NEGATIVE_ERRNO",
-				     "return of an errno should typically be -ve (return -$1)\n" . $herecurr);
-			}
-		}
-
-# Need a space before open parenthesis after if, while etc
-		if ($line=~/\b(if|while|for|switch)\(/) {
-			ERROR("SPACING", "space required before the open parenthesis '('\n" . $herecurr);
-		}
-
-# Check for illegal assignment in if conditional -- and check for trailing
-# statements after the conditional.
-		if ($line =~ /do\s*(?!{)/) {
-			($stat, $cond, $line_nr_next, $remain_next, $off_next) =
-				ctx_statement_block($linenr, $realcnt, 0)
-					if (!defined $stat);
-			my ($stat_next) = ctx_statement_block($line_nr_next,
-						$remain_next, $off_next);
-			$stat_next =~ s/\n./\n /g;
-			##print "stat<$stat> stat_next<$stat_next>\n";
-
-			if ($stat_next =~ /^\s*while\b/) {
-				# If the statement carries leading newlines,
-				# then count those as offsets.
-				my ($whitespace) =
-					($stat_next =~ /^((?:\s*\n[+-])*\s*)/s);
-				my $offset =
-					statement_rawlines($whitespace) - 1;
-
-				$suppress_whiletrailers{$line_nr_next +
-								$offset} = 1;
-			}
-		}
-		if (!defined $suppress_whiletrailers{$linenr} &&
-		    $line =~ /\b(?:if|while|for)\s*\(/ && $line !~ /^.\s*#/) {
-			my ($s, $c) = ($stat, $cond);
-
-			if ($c =~ /\bif\s*\(.*[^<>!=]=[^=].*/s) {
-				ERROR("ASSIGN_IN_IF",
-				      "do not use assignment in if condition\n" . $herecurr);
-			}
-
-			# Find out what is on the end of the line after the
-			# conditional.
-			substr($s, 0, length($c), '');
-			$s =~ s/\n.*//g;
-			$s =~ s/$;//g; 	# Remove any comments
-			if (length($c) && $s !~ /^\s*{?\s*\\*\s*$/ &&
-			    $c !~ /}\s*while\s*/)
-			{
-				# Find out how long the conditional actually is.
-				my @newlines = ($c =~ /\n/gs);
-				my $cond_lines = 1 + $#newlines;
-				my $stat_real = '';
-
-				$stat_real = raw_line($linenr, $cond_lines)
-							. "\n" if ($cond_lines);
-				if (defined($stat_real) && $cond_lines > 1) {
-					$stat_real = "[...]\n$stat_real";
-				}
-
-				ERROR("TRAILING_STATEMENTS",
-				      "trailing statements should be on next line\n" . $herecurr . $stat_real);
-			}
-		}
-
-# Check for bitwise tests written as boolean
-		if ($line =~ /
-			(?:
-				(?:\[|\(|\&\&|\|\|)
-				\s*0[xX][0-9]+\s*
-				(?:\&\&|\|\|)
-			|
-				(?:\&\&|\|\|)
-				\s*0[xX][0-9]+\s*
-				(?:\&\&|\|\||\)|\])
-			)/x)
-		{
-			WARN("HEXADECIMAL_BOOLEAN_TEST",
-			     "boolean test with hexadecimal, perhaps just 1 \& or \|?\n" . $herecurr);
-		}
-
-# if and else should not have general statements after it
-		if ($line =~ /^.\s*(?:}\s*)?else\b(.*)/) {
-			my $s = $1;
-			$s =~ s/$;//g; 	# Remove any comments
-			if ($s !~ /^\s*(?:\sif|(?:{|)\s*\\?\s*$)/) {
-				ERROR("TRAILING_STATEMENTS",
-				      "trailing statements should be on next line\n" . $herecurr);
-			}
-		}
-# if should not continue a brace
-		if ($line =~ /}\s*if\b/) {
-			ERROR("TRAILING_STATEMENTS",
-			      "trailing statements should be on next line\n" .
-				$herecurr);
-		}
-# case and default should not have general statements after them
-		if ($line =~ /^.\s*(?:case\s*.*|default\s*):/g &&
-		    $line !~ /\G(?:
-			(?:\s*$;*)(?:\s*{)?(?:\s*$;*)(?:\s*\\)?\s*$|
-			\s*return\s+
-		    )/xg)
-		{
-			ERROR("TRAILING_STATEMENTS",
-			      "trailing statements should be on next line\n" . $herecurr);
-		}
-
-		# Check for }<nl>else {, these must be at the same
-		# indent level to be relevant to each other.
-		if ($prevline=~/}\s*$/ and $line=~/^.\s*else\s*/ and
-						$previndent == $indent) {
-			ERROR("ELSE_AFTER_BRACE",
-			      "else should follow close brace '}'\n" . $hereprev);
-		}
-
-		if ($prevline=~/}\s*$/ and $line=~/^.\s*while\s*/ and
-						$previndent == $indent) {
-			my ($s, $c) = ctx_statement_block($linenr, $realcnt, 0);
-
-			# Find out what is on the end of the line after the
-			# conditional.
-			substr($s, 0, length($c), '');
-			$s =~ s/\n.*//g;
-
-			if ($s =~ /^\s*;/) {
-				ERROR("WHILE_AFTER_BRACE",
-				      "while should follow close brace '}'\n" . $hereprev);
-			}
-		}
-
-#CamelCase
-		while ($line =~ m{($Constant|$Lval)}g) {
-			my $var = $1;
-			if ($var !~ /$Constant/ &&
-			    $var =~ /[A-Z]\w*[a-z]|[a-z]\w*[A-Z]/ &&
-			    $var !~ /"^(?:Clear|Set|TestClear|TestSet|)Page[A-Z]/ &&
-			    !defined $camelcase{$var}) {
-				$camelcase{$var} = 1;
-				WARN("CAMELCASE",
-				     "Avoid CamelCase: <$var>\n" . $herecurr);
-			}
-		}
-
-#no spaces allowed after \ in define
-		if ($line=~/\#\s*define.*\\\s$/) {
-			WARN("WHITESPACE_AFTER_LINE_CONTINUATION",
-			     "Whitepspace after \\ makes next lines useless\n" . $herecurr);
-		}
-
-#warn if <asm/foo.h> is #included and <linux/foo.h> is available (uses RAW line)
-		if ($tree && $rawline =~ m{^.\s*\#\s*include\s*\<asm\/(.*)\.h\>}) {
-			my $file = "$1.h";
-			my $checkfile = "include/linux/$file";
-			if (-f "$root/$checkfile" &&
-			    $realfile ne $checkfile &&
-			    $1 !~ /$allowed_asm_includes/)
-			{
-				if ($realfile =~ m{^arch/}) {
-					CHK("ARCH_INCLUDE_LINUX",
-					    "Consider using #include <linux/$file> instead of <asm/$file>\n" . $herecurr);
-				} else {
-					WARN("INCLUDE_LINUX",
-					     "Use #include <linux/$file> instead of <asm/$file>\n" . $herecurr);
-				}
-			}
-		}
-
-# multi-statement macros should be enclosed in a do while loop, grab the
-# first statement and ensure its the whole macro if its not enclosed
-# in a known good container
-		if ($realfile !~ m@/vmlinux.lds.h$@ &&
-		    $line =~ /^.\s*\#\s*define\s*$Ident(\()?/) {
-			my $ln = $linenr;
-			my $cnt = $realcnt;
-			my ($off, $dstat, $dcond, $rest);
-			my $ctx = '';
-			($dstat, $dcond, $ln, $cnt, $off) =
-				ctx_statement_block($linenr, $realcnt, 0);
-			$ctx = $dstat;
-			#print "dstat<$dstat> dcond<$dcond> cnt<$cnt> off<$off>\n";
-			#print "LINE<$lines[$ln-1]> len<" . length($lines[$ln-1]) . "\n";
-
-			$dstat =~ s/^.\s*\#\s*define\s+$Ident(?:\([^\)]*\))?\s*//;
-			$dstat =~ s/$;//g;
-			$dstat =~ s/\\\n.//g;
-			$dstat =~ s/^\s*//s;
-			$dstat =~ s/\s*$//s;
-
-			# Flatten any parentheses and braces
-			while ($dstat =~ s/\([^\(\)]*\)/1/ ||
-			       $dstat =~ s/\{[^\{\}]*\}/1/ ||
-			       $dstat =~ s/\[[^\[\]]*\]/1/)
-			{
-			}
-
-			# Flatten any obvious string concatentation.
-			while ($dstat =~ s/("X*")\s*$Ident/$1/ ||
-			       $dstat =~ s/$Ident\s*("X*")/$1/)
-			{
-			}
-
-			my $exceptions = qr{
-				$Declare|
-				module_param_named|
-				MODULE_PARM_DESC|
-				DECLARE_PER_CPU|
-				DEFINE_PER_CPU|
-				__typeof__\(|
-				union|
-				struct|
-				\.$Ident\s*=\s*|
-				^\"|\"$
-			}x;
-			#print "REST<$rest> dstat<$dstat> ctx<$ctx>\n";
-			if ($dstat ne '' &&
-			    $dstat !~ /^(?:$Ident|-?$Constant),$/ &&			# 10, // foo(),
-			    $dstat !~ /^(?:$Ident|-?$Constant);$/ &&			# foo();
-			    $dstat !~ /^[!~-]?(?:$Ident|$Constant)$/ &&		# 10 // foo() // !foo // ~foo // -foo
-			    $dstat !~ /^'X'$/ &&					# character constants
-			    $dstat !~ /$exceptions/ &&
-			    $dstat !~ /^\.$Ident\s*=/ &&				# .foo =
-			    $dstat !~ /^do\s*$Constant\s*while\s*$Constant;?$/ &&	# do {...} while (...); // do {...} while (...)
-			    $dstat !~ /^for\s*$Constant$/ &&				# for (...)
-			    $dstat !~ /^for\s*$Constant\s+(?:$Ident|-?$Constant)$/ &&	# for (...) bar()
-			    $dstat !~ /^do\s*{/ &&					# do {...
-			    $dstat !~ /^\({/)						# ({...
-			{
-				$ctx =~ s/\n*$//;
-				my $herectx = $here . "\n";
-				my $cnt = statement_rawlines($ctx);
-
-				for (my $n = 0; $n < $cnt; $n++) {
-					$herectx .= raw_line($linenr, $n) . "\n";
-				}
-
-				if ($dstat =~ /;/) {
-					ERROR("MULTISTATEMENT_MACRO_USE_DO_WHILE",
-					      "Macros with multiple statements should be enclosed in a do - while loop\n" . "$herectx");
-				} else {
-					ERROR("COMPLEX_MACRO",
-					      "Macros with complex values should be enclosed in parenthesis\n" . "$herectx");
-				}
-			}
-
-# check for line continuations outside of #defines, preprocessor #, and asm
-
-		} else {
-			if ($prevline !~ /^..*\\$/ &&
-			    $line !~ /^\+\s*\#.*\\$/ &&		# preprocessor
-			    $line !~ /^\+.*\b(__asm__|asm)\b.*\\$/ &&	# asm
-			    $line =~ /^\+.*\\$/) {
-				WARN("LINE_CONTINUATIONS",
-				     "Avoid unnecessary line continuations\n" . $herecurr);
-			}
-		}
-
-# do {} while (0) macro tests:
-# single-statement macros do not need to be enclosed in do while (0) loop,
-# macro should not end with a semicolon
-		if ($^V && $^V ge 5.10.0 &&
-		    $realfile !~ m@/vmlinux.lds.h$@ &&
-		    $line =~ /^.\s*\#\s*define\s+$Ident(\()?/) {
-			my $ln = $linenr;
-			my $cnt = $realcnt;
-			my ($off, $dstat, $dcond, $rest);
-			my $ctx = '';
-			($dstat, $dcond, $ln, $cnt, $off) =
-				ctx_statement_block($linenr, $realcnt, 0);
-			$ctx = $dstat;
-
-			$dstat =~ s/\\\n.//g;
-
-			if ($dstat =~ /^\+\s*#\s*define\s+$Ident\s*${balanced_parens}\s*do\s*{(.*)\s*}\s*while\s*\(\s*0\s*\)\s*([;\s]*)\s*$/) {
-				my $stmts = $2;
-				my $semis = $3;
-
-				$ctx =~ s/\n*$//;
-				my $cnt = statement_rawlines($ctx);
-				my $herectx = $here . "\n";
-
-				for (my $n = 0; $n < $cnt; $n++) {
-					$herectx .= raw_line($linenr, $n) . "\n";
-				}
-
-				if (($stmts =~ tr/;/;/) == 1 &&
-				    $stmts !~ /^\s*(if|while|for|switch)\b/) {
-					WARN("SINGLE_STATEMENT_DO_WHILE_MACRO",
-					     "Single statement macros should not use a do {} while (0) loop\n" . "$herectx");
-				}
-				if (defined $semis && $semis ne "") {
-					WARN("DO_WHILE_MACRO_WITH_TRAILING_SEMICOLON",
-					     "do {} while (0) macros should not be semicolon terminated\n" . "$herectx");
-				}
-			}
-		}
-
-# make sure symbols are always wrapped with VMLINUX_SYMBOL() ...
-# all assignments may have only one of the following with an assignment:
-#	.
-#	ALIGN(...)
-#	VMLINUX_SYMBOL(...)
-		if ($realfile eq 'vmlinux.lds.h' && $line =~ /(?:(?:^|\s)$Ident\s*=|=\s*$Ident(?:\s|$))/) {
-			WARN("MISSING_VMLINUX_SYMBOL",
-			     "vmlinux.lds.h needs VMLINUX_SYMBOL() around C-visible symbols\n" . $herecurr);
-		}
-
-# check for redundant bracing round if etc
-		if ($line =~ /(^.*)\bif\b/ && $1 !~ /else\s*$/) {
-			my ($level, $endln, @chunks) =
-				ctx_statement_full($linenr, $realcnt, 1);
-			#print "chunks<$#chunks> linenr<$linenr> endln<$endln> level<$level>\n";
-			#print "APW: <<$chunks[1][0]>><<$chunks[1][1]>>\n";
-			if ($#chunks > 0 && $level == 0) {
-				my @allowed = ();
-				my $allow = 0;
-				my $seen = 0;
-				my $herectx = $here . "\n";
-				my $ln = $linenr - 1;
-				for my $chunk (@chunks) {
-					my ($cond, $block) = @{$chunk};
-
-					# If the condition carries leading newlines, then count those as offsets.
-					my ($whitespace) = ($cond =~ /^((?:\s*\n[+-])*\s*)/s);
-					my $offset = statement_rawlines($whitespace) - 1;
-
-					$allowed[$allow] = 0;
-					#print "COND<$cond> whitespace<$whitespace> offset<$offset>\n";
-
-					# We have looked at and allowed this specific line.
-					$suppress_ifbraces{$ln + $offset} = 1;
-
-					$herectx .= "$rawlines[$ln + $offset]\n[...]\n";
-					$ln += statement_rawlines($block) - 1;
-
-					substr($block, 0, length($cond), '');
-
-					$seen++ if ($block =~ /^\s*{/);
-
-					#print "cond<$cond> block<$block> allowed<$allowed[$allow]>\n";
-					if (statement_lines($cond) > 1) {
-						#print "APW: ALLOWED: cond<$cond>\n";
-						$allowed[$allow] = 1;
-					}
-					if ($block =~/\b(?:if|for|while)\b/) {
-						#print "APW: ALLOWED: block<$block>\n";
-						$allowed[$allow] = 1;
-					}
-					if (statement_block_size($block) > 1) {
-						#print "APW: ALLOWED: lines block<$block>\n";
-						$allowed[$allow] = 1;
-					}
-					$allow++;
-				}
-				if ($seen) {
-					my $sum_allowed = 0;
-					foreach (@allowed) {
-						$sum_allowed += $_;
-					}
-					if ($sum_allowed == 0) {
-						WARN("BRACES",
-						     "braces {} are not necessary for any arm of this statement\n" . $herectx);
-					} elsif ($sum_allowed != $allow &&
-						 $seen != $allow) {
-						CHK("BRACES",
-						    "braces {} should be used on all arms of this statement\n" . $herectx);
-					}
-				}
-			}
-		}
-		if (!defined $suppress_ifbraces{$linenr - 1} &&
-					$line =~ /\b(if|while|for|else)\b/) {
-			my $allowed = 0;
-
-			# Check the pre-context.
-			if (substr($line, 0, $-[0]) =~ /(\}\s*)$/) {
-				#print "APW: ALLOWED: pre<$1>\n";
-				$allowed = 1;
-			}
-
-			my ($level, $endln, @chunks) =
-				ctx_statement_full($linenr, $realcnt, $-[0]);
-
-			# Check the condition.
-			my ($cond, $block) = @{$chunks[0]};
-			#print "CHECKING<$linenr> cond<$cond> block<$block>\n";
-			if (defined $cond) {
-				substr($block, 0, length($cond), '');
-			}
-			if (statement_lines($cond) > 1) {
-				#print "APW: ALLOWED: cond<$cond>\n";
-				$allowed = 1;
-			}
-			if ($block =~/\b(?:if|for|while)\b/) {
-				#print "APW: ALLOWED: block<$block>\n";
-				$allowed = 1;
-			}
-			if (statement_block_size($block) > 1) {
-				#print "APW: ALLOWED: lines block<$block>\n";
-				$allowed = 1;
-			}
-			# Check the post-context.
-			if (defined $chunks[1]) {
-				my ($cond, $block) = @{$chunks[1]};
-				if (defined $cond) {
-					substr($block, 0, length($cond), '');
-				}
-				if ($block =~ /^\s*\{/) {
-					#print "APW: ALLOWED: chunk-1 block<$block>\n";
-					$allowed = 1;
-				}
-			}
-			if ($level == 0 && $block =~ /^\s*\{/ && !$allowed) {
-				my $herectx = $here . "\n";
-				my $cnt = statement_rawlines($block);
-
-				for (my $n = 0; $n < $cnt; $n++) {
-					$herectx .= raw_line($linenr, $n) . "\n";
-				}
-
-				WARN("BRACES",
-				     "braces {} are not necessary for single statement blocks\n" . $herectx);
-			}
-		}
-
-# check for unnecessary blank lines around braces
-		if (($line =~ /^..*}\s*$/ && $prevline =~ /^.\s*$/)) {
-			CHK("BRACES",
-			    "Blank lines aren't necessary before a close brace '}'\n" . $hereprev);
-		}
-		if (($line =~ /^.\s*$/ && $prevline =~ /^..*{\s*$/)) {
-			CHK("BRACES",
-			    "Blank lines aren't necessary after an open brace '{'\n" . $hereprev);
-		}
-
-# no volatiles please
-		my $asm_volatile = qr{\b(__asm__|asm)\s+(__volatile__|volatile)\b};
-		if ($line =~ /\bvolatile\b/ && $line !~ /$asm_volatile/) {
-			WARN("VOLATILE",
-			     "Use of volatile is usually wrong: see Documentation/volatile-considered-harmful.txt\n" . $herecurr);
-		}
-
-# warn about #if 0
-		if ($line =~ /^.\s*\#\s*if\s+0\b/) {
-			CHK("REDUNDANT_CODE",
-			    "if this code is redundant consider removing it\n" .
-				$herecurr);
-		}
-
-# check for needless "if (<foo>) fn(<foo>)" uses
-		if ($prevline =~ /\bif\s*\(\s*($Lval)\s*\)/) {
-			my $expr = '\s*\(\s*' . quotemeta($1) . '\s*\)\s*;';
-			if ($line =~ /\b(kfree|usb_free_urb|debugfs_remove(?:_recursive)?)$expr/) {
-				WARN('NEEDLESS_IF',
-				     "$1(NULL) is safe this check is probably not required\n" . $hereprev);
-			}
-		}
-
-# prefer usleep_range over udelay
-		if ($line =~ /\budelay\s*\(\s*(\d+)\s*\)/) {
-			# ignore udelay's < 10, however
-			if (! ($1 < 10) ) {
-				CHK("USLEEP_RANGE",
-				    "usleep_range is preferred over udelay; see Documentation/timers/timers-howto.txt\n" . $line);
-			}
-		}
-
-# warn about unexpectedly long msleep's
-		if ($line =~ /\bmsleep\s*\((\d+)\);/) {
-			if ($1 < 20) {
-				WARN("MSLEEP",
-				     "msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt\n" . $line);
-			}
-		}
-
-# warn about #ifdefs in C files
-#		if ($line =~ /^.\s*\#\s*if(|n)def/ && ($realfile =~ /\.c$/)) {
-#			print "#ifdef in C files should be avoided\n";
-#			print "$herecurr";
-#			$clean = 0;
-#		}
-
-# warn about spacing in #ifdefs
-		if ($line =~ /^.\s*\#\s*(ifdef|ifndef|elif)\s\s+/) {
-			ERROR("SPACING",
-			      "exactly one space required after that #$1\n" . $herecurr);
-		}
-
-# check for spinlock_t definitions without a comment.
-		if ($line =~ /^.\s*(struct\s+mutex|spinlock_t)\s+\S+;/ ||
-		    $line =~ /^.\s*(DEFINE_MUTEX)\s*\(/) {
-			my $which = $1;
-			if (!ctx_has_comment($first_line, $linenr)) {
-				CHK("UNCOMMENTED_DEFINITION",
-				    "$1 definition without comment\n" . $herecurr);
-			}
-		}
-# check for memory barriers without a comment.
-		if ($line =~ /\b(mb|rmb|wmb|read_barrier_depends|smp_mb|smp_rmb|smp_wmb|smp_read_barrier_depends)\(/) {
-			if (!ctx_has_comment($first_line, $linenr)) {
-				CHK("MEMORY_BARRIER",
-				    "memory barrier without comment\n" . $herecurr);
-			}
-		}
-# check of hardware specific defines
-		if ($line =~ m@^.\s*\#\s*if.*\b(__i386__|__powerpc64__|__sun__|__s390x__)\b@ && $realfile !~ m@include/asm-@) {
-			CHK("ARCH_DEFINES",
-			    "architecture specific defines should be avoided\n" .  $herecurr);
-		}
-
-# Check that the storage class is at the beginning of a declaration
-		if ($line =~ /\b$Storage\b/ && $line !~ /^.\s*$Storage\b/) {
-			WARN("STORAGE_CLASS",
-			     "storage class should be at the beginning of the declaration\n" . $herecurr)
-		}
-
-# check the location of the inline attribute, that it is between
-# storage class and type.
-		if ($line =~ /\b$Type\s+$Inline\b/ ||
-		    $line =~ /\b$Inline\s+$Storage\b/) {
-			ERROR("INLINE_LOCATION",
-			      "inline keyword should sit between storage class and type\n" . $herecurr);
-		}
-
-# Check for __inline__ and __inline, prefer inline
-		if ($line =~ /\b(__inline__|__inline)\b/) {
-			WARN("INLINE",
-			     "plain inline is preferred over $1\n" . $herecurr);
-		}
-
-# Check for __attribute__ packed, prefer __packed
-		if ($line =~ /\b__attribute__\s*\(\s*\(.*\bpacked\b/) {
-			WARN("PREFER_PACKED",
-			     "__packed is preferred over __attribute__((packed))\n" . $herecurr);
-		}
-
-# Check for __attribute__ aligned, prefer __aligned
-		if ($line =~ /\b__attribute__\s*\(\s*\(.*aligned/) {
-			WARN("PREFER_ALIGNED",
-			     "__aligned(size) is preferred over __attribute__((aligned(size)))\n" . $herecurr);
-		}
-
-# Check for __attribute__ format(printf, prefer __printf
-		if ($line =~ /\b__attribute__\s*\(\s*\(\s*format\s*\(\s*printf/) {
-			WARN("PREFER_PRINTF",
-			     "__printf(string-index, first-to-check) is preferred over __attribute__((format(printf, string-index, first-to-check)))\n" . $herecurr);
-		}
-
-# Check for __attribute__ format(scanf, prefer __scanf
-		if ($line =~ /\b__attribute__\s*\(\s*\(\s*format\s*\(\s*scanf\b/) {
-			WARN("PREFER_SCANF",
-			     "__scanf(string-index, first-to-check) is preferred over __attribute__((format(scanf, string-index, first-to-check)))\n" . $herecurr);
-		}
-
-# check for sizeof(&)
-		if ($line =~ /\bsizeof\s*\(\s*\&/) {
-			WARN("SIZEOF_ADDRESS",
-			     "sizeof(& should be avoided\n" . $herecurr);
-		}
-
-# check for sizeof without parenthesis
-		if ($line =~ /\bsizeof\s+((?:\*\s*|)$Lval|$Type(?:\s+$Lval|))/) {
-			WARN("SIZEOF_PARENTHESIS",
-			     "sizeof $1 should be sizeof($1)\n" . $herecurr);
-		}
-
-# check for line continuations in quoted strings with odd counts of "
-		if ($rawline =~ /\\$/ && $rawline =~ tr/"/"/ % 2) {
-			WARN("LINE_CONTINUATIONS",
-			     "Avoid line continuations in quoted strings\n" . $herecurr);
-		}
-
-# check for struct spinlock declarations
-		if ($line =~ /^.\s*\bstruct\s+spinlock\s+\w+\s*;/) {
-			WARN("USE_SPINLOCK_T",
-			     "struct spinlock should be spinlock_t\n" . $herecurr);
-		}
-
-# Check for misused memsets
-		if ($^V && $^V ge 5.10.0 &&
-		    defined $stat &&
-		    $stat =~ /^\+(?:.*?)\bmemset\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\,\s*$FuncArg\s*\)/s) {
-
-			my $ms_addr = $2;
-			my $ms_val = $7;
-			my $ms_size = $12;
-
-			if ($ms_size =~ /^(0x|)0$/i) {
-				ERROR("MEMSET",
-				      "memset to 0's uses 0 as the 2nd argument, not the 3rd\n" . "$here\n$stat\n");
-			} elsif ($ms_size =~ /^(0x|)1$/i) {
-				WARN("MEMSET",
-				     "single byte memset is suspicious. Swapped 2nd/3rd argument?\n" . "$here\n$stat\n");
-			}
-		}
-
-# typecasts on min/max could be min_t/max_t
-		if ($^V && $^V ge 5.10.0 &&
-		    defined $stat &&
-		    $stat =~ /^\+(?:.*?)\b(min|max)\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\)/) {
-			if (defined $2 || defined $7) {
-				my $call = $1;
-				my $cast1 = deparenthesize($2);
-				my $arg1 = $3;
-				my $cast2 = deparenthesize($7);
-				my $arg2 = $8;
-				my $cast;
-
-				if ($cast1 ne "" && $cast2 ne "" && $cast1 ne $cast2) {
-					$cast = "$cast1 or $cast2";
-				} elsif ($cast1 ne "") {
-					$cast = $cast1;
-				} else {
-					$cast = $cast2;
-				}
-				WARN("MINMAX",
-				     "$call() should probably be ${call}_t($cast, $arg1, $arg2)\n" . "$here\n$stat\n");
-			}
-		}
-
-# check usleep_range arguments
-		if ($^V && $^V ge 5.10.0 &&
-		    defined $stat &&
-		    $stat =~ /^\+(?:.*?)\busleep_range\s*\(\s*($FuncArg)\s*,\s*($FuncArg)\s*\)/) {
-			my $min = $1;
-			my $max = $7;
-			if ($min eq $max) {
-				WARN("USLEEP_RANGE",
-				     "usleep_range should not use min == max args; see Documentation/timers/timers-howto.txt\n" . "$here\n$stat\n");
-			} elsif ($min =~ /^\d+$/ && $max =~ /^\d+$/ &&
-				 $min > $max) {
-				WARN("USLEEP_RANGE",
-				     "usleep_range args reversed, use min then max; see Documentation/timers/timers-howto.txt\n" . "$here\n$stat\n");
-			}
-		}
-
-# check for new externs in .c files.
-		if ($realfile =~ /\.c$/ && defined $stat &&
-		    $stat =~ /^.\s*(?:extern\s+)?$Type\s+($Ident)(\s*)\(/s)
-		{
-			my $function_name = $1;
-			my $paren_space = $2;
-
-			my $s = $stat;
-			if (defined $cond) {
-				substr($s, 0, length($cond), '');
-			}
-			if ($s =~ /^\s*;/ &&
-			    $function_name ne 'uninitialized_var')
-			{
-				WARN("AVOID_EXTERNS",
-				     "externs should be avoided in .c files\n" .  $herecurr);
-			}
-
-			if ($paren_space =~ /\n/) {
-				WARN("FUNCTION_ARGUMENTS",
-				     "arguments for function declarations should follow identifier\n" . $herecurr);
-			}
-
-		} elsif ($realfile =~ /\.c$/ && defined $stat &&
-		    $stat =~ /^.\s*extern\s+/)
-		{
-			WARN("AVOID_EXTERNS",
-			     "externs should be avoided in .c files\n" .  $herecurr);
-		}
-
-# checks for new __setup's
-		if ($rawline =~ /\b__setup\("([^"]*)"/) {
-			my $name = $1;
-
-			if (!grep(/$name/, @setup_docs)) {
-				CHK("UNDOCUMENTED_SETUP",
-				    "__setup appears un-documented -- check Documentation/kernel-parameters.txt\n" . $herecurr);
-			}
-		}
-
-# check for pointless casting of kmalloc return
-		if ($line =~ /\*\s*\)\s*[kv][czm]alloc(_node){0,1}\b/) {
-			WARN("UNNECESSARY_CASTS",
-			     "unnecessary cast may hide bugs, see http://c-faq.com/malloc/mallocnocast.html\n" . $herecurr);
-		}
-
-# check for alloc argument mismatch
-		if ($line =~ /\b(kcalloc|kmalloc_array)\s*\(\s*sizeof\b/) {
-			WARN("ALLOC_ARRAY_ARGS",
-			     "$1 uses number as first arg, sizeof is generally wrong\n" . $herecurr);
-		}
-
-# check for multiple semicolons
-		if ($line =~ /;\s*;\s*$/) {
-			WARN("ONE_SEMICOLON",
-			     "Statements terminations use 1 semicolon\n" . $herecurr);
-		}
-
-# check for switch/default statements without a break;
-		if ($^V && $^V ge 5.10.0 &&
-		    defined $stat &&
-		    $stat =~ /^\+[$;\s]*(?:case[$;\s]+\w+[$;\s]*:[$;\s]*|)*[$;\s]*\bdefault[$;\s]*:[$;\s]*;/g) {
-			my $ctx = '';
-			my $herectx = $here . "\n";
-			my $cnt = statement_rawlines($stat);
-			for (my $n = 0; $n < $cnt; $n++) {
-				$herectx .= raw_line($linenr, $n) . "\n";
-			}
-			WARN("DEFAULT_NO_BREAK",
-			     "switch default: should use break\n" . $herectx);
-		}
-
-# check for gcc specific __FUNCTION__
-		if ($line =~ /__FUNCTION__/) {
-			WARN("USE_FUNC",
-			     "__func__ should be used instead of gcc specific __FUNCTION__\n"  . $herecurr);
-		}
-
-# check for use of yield()
-		if ($line =~ /\byield\s*\(\s*\)/) {
-			WARN("YIELD",
-			     "Using yield() is generally wrong. See yield() kernel-doc (sched/core.c)\n"  . $herecurr);
-		}
-
-# check for semaphores initialized locked
-		if ($line =~ /^.\s*sema_init.+,\W?0\W?\)/) {
-			WARN("CONSIDER_COMPLETION",
-			     "consider using a completion\n" . $herecurr);
-		}
-
-# recommend kstrto* over simple_strto* and strict_strto*
-		if ($line =~ /\b((simple|strict)_(strto(l|ll|ul|ull)))\s*\(/) {
-			WARN("CONSIDER_KSTRTO",
-			     "$1 is obsolete, use k$3 instead\n" . $herecurr);
-		}
-
-# check for __initcall(), use device_initcall() explicitly please
-		if ($line =~ /^.\s*__initcall\s*\(/) {
-			WARN("USE_DEVICE_INITCALL",
-			     "please use device_initcall() instead of __initcall()\n" . $herecurr);
-		}
-
-# check for various ops structs, ensure they are const.
-		my $struct_ops = qr{acpi_dock_ops|
-				address_space_operations|
-				backlight_ops|
-				block_device_operations|
-				dentry_operations|
-				dev_pm_ops|
-				dma_map_ops|
-				extent_io_ops|
-				file_lock_operations|
-				file_operations|
-				hv_ops|
-				ide_dma_ops|
-				intel_dvo_dev_ops|
-				item_operations|
-				iwl_ops|
-				kgdb_arch|
-				kgdb_io|
-				kset_uevent_ops|
-				lock_manager_operations|
-				microcode_ops|
-				mtrr_ops|
-				neigh_ops|
-				nlmsvc_binding|
-				pci_raw_ops|
-				pipe_buf_operations|
-				platform_hibernation_ops|
-				platform_suspend_ops|
-				proto_ops|
-				rpc_pipe_ops|
-				seq_operations|
-				snd_ac97_build_ops|
-				soc_pcmcia_socket_ops|
-				stacktrace_ops|
-				sysfs_ops|
-				tty_operations|
-				usb_mon_operations|
-				wd_ops}x;
-		if ($line !~ /\bconst\b/ &&
-		    $line =~ /\bstruct\s+($struct_ops)\b/) {
-			WARN("CONST_STRUCT",
-			     "struct $1 should normally be const\n" .
-				$herecurr);
-		}
-
-# use of NR_CPUS is usually wrong
-# ignore definitions of NR_CPUS and usage to define arrays as likely right
-		if ($line =~ /\bNR_CPUS\b/ &&
-		    $line !~ /^.\s*\s*#\s*if\b.*\bNR_CPUS\b/ &&
-		    $line !~ /^.\s*\s*#\s*define\b.*\bNR_CPUS\b/ &&
-		    $line !~ /^.\s*$Declare\s.*\[[^\]]*NR_CPUS[^\]]*\]/ &&
-		    $line !~ /\[[^\]]*\.\.\.[^\]]*NR_CPUS[^\]]*\]/ &&
-		    $line !~ /\[[^\]]*NR_CPUS[^\]]*\.\.\.[^\]]*\]/)
-		{
-			WARN("NR_CPUS",
-			     "usage of NR_CPUS is often wrong - consider using cpu_possible(), num_possible_cpus(), for_each_possible_cpu(), etc\n" . $herecurr);
-		}
-
-# check for %L{u,d,i} in strings
-		my $string;
-		while ($line =~ /(?:^|")([X\t]*)(?:"|$)/g) {
-			$string = substr($rawline, $-[1], $+[1] - $-[1]);
-			$string =~ s/%%/__/g;
-			if ($string =~ /(?<!%)%L[udi]/) {
-				WARN("PRINTF_L",
-				     "\%Ld/%Lu are not-standard C, use %lld/%llu\n" . $herecurr);
-				last;
-			}
-		}
-
-# whine mightly about in_atomic
-		if ($line =~ /\bin_atomic\s*\(/) {
-			if ($realfile =~ m@^drivers/@) {
-				ERROR("IN_ATOMIC",
-				      "do not use in_atomic in drivers\n" . $herecurr);
-			} elsif ($realfile !~ m@^kernel/@) {
-				WARN("IN_ATOMIC",
-				     "use of in_atomic() is incorrect outside core kernel code\n" . $herecurr);
-			}
-		}
-
-# check for lockdep_set_novalidate_class
-		if ($line =~ /^.\s*lockdep_set_novalidate_class\s*\(/ ||
-		    $line =~ /__lockdep_no_validate__\s*\)/ ) {
-			if ($realfile !~ m@^kernel/lockdep@ &&
-			    $realfile !~ m@^include/linux/lockdep@ &&
-			    $realfile !~ m@^drivers/base/core@) {
-				ERROR("LOCKDEP",
-				      "lockdep_no_validate class is reserved for device->mutex.\n" . $herecurr);
-			}
-		}
-
-		if ($line =~ /debugfs_create_file.*S_IWUGO/ ||
-		    $line =~ /DEVICE_ATTR.*S_IWUGO/ ) {
-			WARN("EXPORTED_WORLD_WRITABLE",
-			     "Exporting world writable files is usually an error. Consider more restrictive permissions.\n" . $herecurr);
-		}
-	}
-
-	# If we have no input at all, then there is nothing to report on
-	# so just keep quiet.
-	if ($#rawlines == -1) {
-		exit(0);
-	}
-
-	# In mailback mode only produce a report in the negative, for
-	# things that appear to be patches.
-	if ($mailback && ($clean == 1 || !$is_patch)) {
-		exit(0);
-	}
-
-	# This is not a patch, and we are are in 'no-patch' mode so
-	# just keep quiet.
-	if (!$chk_patch && !$is_patch) {
-		exit(0);
-	}
-
-	if (!$is_patch) {
-		ERROR("NOT_UNIFIED_DIFF",
-		      "Does not appear to be a unified-diff format patch\n");
-	}
-	if ($is_patch && $chk_signoff && $signoff == 0) {
-		ERROR("MISSING_SIGN_OFF",
-		      "Missing Signed-off-by: line(s)\n");
-	}
-
-	print report_dump();
-	if ($summary && !($clean == 1 && $quiet == 1)) {
-		print "$filename " if ($summary_file);
-		print "total: $cnt_error errors, $cnt_warn warnings, " .
-			(($check)? "$cnt_chk checks, " : "") .
-			"$cnt_lines lines checked\n";
-		print "\n" if ($quiet == 0);
-	}
-
-	if ($quiet == 0) {
-
-		if ($^V lt 5.10.0) {
-			print("NOTE: perl $^V is not modern enough to detect all possible issues.\n");
-			print("An upgrade to at least perl v5.10.0 is suggested.\n\n");
-		}
-
-		# If there were whitespace errors which cleanpatch can fix
-		# then suggest that.
-		if ($rpt_cleaners) {
-			print "NOTE: whitespace errors detected, you may wish to use scripts/cleanpatch or\n";
-			print "      scripts/cleanfile\n\n";
-			$rpt_cleaners = 0;
-		}
-	}
-
-	if ($quiet == 0 && keys %ignore_type) {
-	    print "NOTE: Ignored message types:";
-	    foreach my $ignore (sort keys %ignore_type) {
-		print " $ignore";
-	    }
-	    print "\n\n";
-	}
-
-	if ($clean == 1 && $quiet == 0) {
-		print "$vname has no obvious style problems and is ready for submission.\n"
-	}
-	if ($clean == 0 && $quiet == 0) {
-		print << "EOM";
-$vname has style problems, please review.
-
-If any of these errors are false positives, please report
-them to the maintainer, see boards.cfg.
-EOM
-	}
-
-	return $clean;
-}