Re: [PATCH 109/148] include/asm-x86/serial.h: checkpatch cleanups - formatting only

[Al Viro <viro@ZenIV.linux.org.uk>]

On Sun, Mar 23, 2008 at 01:03:24AM -0700, Joe Perches wrote:
> 
> Signed-off-by: Joe Perches <joe@perches.com>

An obvious corollary to this highly inspired series of patches:

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
deleted file mode 100755
index 2a7cef9..0000000
--- a/scripts/checkpatch.pl
+++ /dev/null
@@ -1,1931 +0,0 @@
-#!/usr/bin/perl -w
-# (c) 2001, Dave Jones. <davej@codemonkey.org.uk> (the file handling bit)
-# (c) 2005, Joel Schopp <jschopp@austin.ibm.com> (the ugly bit)
-# (c) 2007, Andy Whitcroft <apw@uk.ibm.com> (new conditions, test suite, etc)
-# Licensed under the terms of the GNU GPL License version 2
-
-use strict;
-
-my $P = $0;
-$P =~ s@.*/@@g;
-
-my $V = '0.15';
-
-use Getopt::Long qw(:config no_auto_abbrev);
-
-my $quiet = 0;
-my $tree = 1;
-my $chk_signoff = 1;
-my $chk_patch = 1;
-my $tst_type = 0;
-my $emacs = 0;
-my $terse = 0;
-my $file = 0;
-my $check = 0;
-my $summary = 1;
-my $mailback = 0;
-my $summary_file = 0;
-my $root;
-my %debug;
-GetOptions(
-	'q|quiet+'	=> \$quiet,
-	'tree!'		=> \$tree,
-	'signoff!'	=> \$chk_signoff,
-	'patch!'	=> \$chk_patch,
-	'emacs!'	=> \$emacs,
-	'terse!'	=> \$terse,
-	'file!'		=> \$file,
-	'subjective!'	=> \$check,
-	'strict!'	=> \$check,
-	'root=s'	=> \$root,
-	'summary!'	=> \$summary,
-	'mailback!'	=> \$mailback,
-	'summary-file!'	=> \$summary_file,
-
-	'debug=s'	=> \%debug,
-	'test-type!'	=> \$tst_type,
-) or exit;
-
-my $exit = 0;
-
-if ($#ARGV < 0) {
-	print "usage: $P [options] patchfile\n";
-	print "version: $V\n";
-	print "options: -q               => quiet\n";
-	print "         --no-tree        => run without a kernel tree\n";
-	print "         --terse          => one line per report\n";
-	print "         --emacs          => emacs compile window format\n";
-	print "         --file           => check a source file\n";
-	print "         --strict         => enable more subjective tests\n";
-	print "         --root           => path to the kernel tree root\n";
-	print "         --no-summary     => suppress the per-file summary\n";
-	print "         --summary-file   => include the filename in summary\n";
-	exit(1);
-}
-
-my $dbg_values = 0;
-my $dbg_possible = 0;
-for my $key (keys %debug) {
-	eval "\${dbg_$key} = '$debug{$key}';"
-}
-
-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_]*};
-our $Storage	= qr{extern|static|asmlinkage};
-our $Sparse	= qr{
-			__user|
-			__kernel|
-			__force|
-			__iomem|
-			__must_check|
-			__init_refok|
-			__kprobes
-		}x;
-our $Attribute	= qr{
-			const|
-			__read_mostly|
-			__kprobes|
-			__(?:mem|cpu|dev|)(?:initdata|init)
-		  }x;
-our $Inline	= qr{inline|__always_inline|noinline};
-our $Member	= qr{->$Ident|\.$Ident|\[[^]]*\]};
-our $Lval	= qr{$Ident(?:$Member)*};
-
-our $Constant	= qr{(?:[0-9]+|0x[0-9a-fA-F]+)[UL]*};
-our $Assignment	= qr{(?:\*\=|/=|%=|\+=|-=|<<=|>>=|&=|\^=|\|=|=)};
-our $Operators	= qr{
-			<=|>=|==|!=|
-			=>|->|<<|>>|<|>|!|~|
-			&&|\|\||,|\^|\+\+|--|&|\||\+|-|\*|\/|%
-		  }x;
-
-our $NonptrType;
-our $Type;
-our $Declare;
-
-our @typeList = (
-	qr{void},
-	qr{char},
-	qr{short},
-	qr{int},
-	qr{long},
-	qr{unsigned},
-	qr{float},
-	qr{double},
-	qr{bool},
-	qr{long\s+int},
-	qr{long\s+long},
-	qr{long\s+long\s+int},
-	qr{(?:__)?(?:u|s|be|le)(?:8|16|32|64)},
-	qr{struct\s+$Ident},
-	qr{union\s+$Ident},
-	qr{enum\s+$Ident},
-	qr{${Ident}_t},
-	qr{${Ident}_handler},
-	qr{${Ident}_handler_fn},
-);
-
-sub build_types {
-	my $all = "(?:  \n" . join("|\n  ", @typeList) . "\n)";
-	$NonptrType	= qr{
-			\b
-			(?:const\s+)?
-			(?:unsigned\s+)?
-			(?:
-				$all|
-				(?:typeof|__typeof__)\s*\(\s*\**\s*$Ident\s*\)
-			)
-			(?:\s+$Sparse|\s+const)*
-			\b
-		  }x;
-	$Type	= qr{
-			\b$NonptrType\b
-			(?:\s*\*+\s*const|\s*\*+|(?:\s*\[\s*\])+)?
-			(?:\s+$Inline|\s+$Sparse|\s+$Attribute)*
-		  }x;
-	$Declare	= qr{(?:$Storage\s+)?$Type};
-}
-build_types();
-
-$chk_signoff = 0 if ($file);
-
-my @dep_includes = ();
-my @dep_functions = ();
-my $removal = "Documentation/feature-removal-schedule.txt";
-if ($tree && -f "$root/$removal") {
-	open(REMOVE, "<$root/$removal") ||
-				die "$P: $removal: open failed - $!\n";
-	while (<REMOVE>) {
-		if (/^Check:\s+(.*\S)/) {
-			for my $entry (split(/[, ]+/, $1)) {
-				if ($entry =~ m@include/(.*)@) {
-					push(@dep_includes, $1);
-
-				} elsif ($entry !~ m@/@) {
-					push(@dep_functions, $entry);
-				}
-			}
-		}
-	}
-}
-
-my @rawlines = ();
-my @lines = ();
-my $vname;
-for my $filename (@ARGV) {
-	if ($file) {
-		open(FILE, "diff -u /dev/null $filename|") ||
-			die "$P: $filename: diff failed - $!\n";
-	} else {
-		open(FILE, "<$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", "MAINTAINERS", "Makefile",
-		"README", "Documentation", "arch", "include", "drivers",
-		"fs", "init", "ipc", "kernel", "lib", "scripts",
-	);
-
-	foreach my $check (@tree_check) {
-		if (! -e $root . '/' . $check) {
-			return 0;
-		}
-	}
-	return 1;
-}
-
-sub expand_tabs {
-	my ($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 $res;
-}
-sub copy_spacing {
-	my ($str) = @_;
-
-	my $res = '';
-	for my $c (split(//, $str)) {
-		if ($c eq "\t") {
-			$res .= $c;
-		} else {
-			$res .= ' ';
-		}
-	}
-
-	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));
-}
-
-sub sanitise_line {
-	my ($line) = @_;
-
-	my $res = '';
-	my $l = '';
-
-	my $quote = '';
-	my $qlen = 0;
-
-	foreach my $c (split(//, $line)) {
-		# The second backslash of a pair is not a "quote".
-		if ($l eq "\\" && $c eq "\\") {
-			$c = 'X';
-		}
-		if ($l ne "\\" && ($c eq "'" || $c eq '"')) {
-			if ($quote eq '') {
-				$quote = $c;
-				$res .= $c;
-				$l = $c;
-				$qlen = 0;
-				next;
-			} elsif ($quote eq $c) {
-				$quote = '';
-			}
-		}
-		if ($quote eq "'" && $qlen > 1) {
-			$quote = '';
-		}
-		if ($quote && $c ne "\t") {
-			$res .= "X";
-			$qlen++;
-		} else {
-			$res .= $c;
-		}
-
-		$l = $c;
-	}
-
-	# Clear out the comments.
-	while ($res =~ m@(/\*.*?\*/)@g) {
-		substr($res, $-[1], $+[1] - $-[1]) = $; x ($+[1] - $-[1]);
-	}
-	if ($res =~ m@(/\*.*)@) {
-		substr($res, $-[1], $+[1] - $-[1]) = $; x ($+[1] - $-[1]);
-	}
-	if ($res =~ m@^.(.*\*/)@) {
-		substr($res, $-[1], $+[1] - $-[1]) = $; x ($+[1] - $-[1]);
-	}
-
-	# The pathname on a #include may be surrounded by '<' and '>'.
-	if ($res =~ /^.#\s*include\s+\<(.*)\>/) {
-		my $clean = 'X' x length($1);
-		$res =~ s@\<.*\>@<$clean>@;
-
-	# The whole of a #error is a string.
-	} elsif ($res =~ /^.#\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 $loff = 0;
-
-	my $type = '';
-	my $level = 0;
-	my $p;
-	my $c;
-	my $len = 0;
-
-	my $remainder;
-	while (1) {
-		#warn "CSB: blk<$blk>\n";
-		# If we are about to drop off the end, pull in more
-		# context.
-		if ($off >= $len) {
-			for (; $remain > 0; $line++) {
-				next if ($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;
-			}
-		}
-		$p = $c;
-		$c = substr($blk, $off, 1);
-		$remainder = substr($blk, $off);
-
-		#warn "CSB: c<$c> type<$type> level<$level>\n";
-		# 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 && (!defined($p) || $p =~ /(?:\s|\})/) &&
-				$remainder =~ /(else)(?:\s|{)/ &&
-				$remainder !~ /else\s+if\b/) {
-			$coff = $off + length($1);
-		}
-
-		if (($type eq '' || $type eq '(') && $c eq '(') {
-			$level++;
-			$type = '(';
-		}
-		if ($type eq '(' && $c eq ')') {
-			$level--;
-			$type = ($level != 0)? '(' : '';
-
-			if ($level == 0 && $coff < $soff) {
-				$coff = $off;
-			}
-		}
-		if (($type eq '' || $type eq '{') && $c eq '{') {
-			$level++;
-			$type = '{';
-		}
-		if ($type eq '{' && $c eq '}') {
-			$level--;
-			$type = ($level != 0)? '{' : '';
-
-			if ($level == 0) {
-				last;
-			}
-		}
-		$off++;
-	}
-	if ($off == $len) {
-		$line++;
-		$remain--;
-	}
-
-	my $statement = substr($blk, $soff, $off - $soff + 1);
-	my $condition = substr($blk, $soff, $coff - $soff + 1);
-
-	#warn "STATEMENT<$statement>\n";
-	#warn "CONDITION<$condition>\n";
-
-	#print "off<$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>\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 $level = 0;
-	for ($line = $start; $remain > 0; $line++) {
-		next if ($rawlines[$line] =~ /^-/);
-		$remain--;
-
-		$blk .= $rawlines[$line];
-		foreach my $c (split(//, $rawlines[$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*$@);
-	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 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;
-
-sub annotate_reset {
-	$av_preprocessor = 0;
-	$av_pending = '_';
-	@av_paren_type = ('E');
-}
-
-sub annotate_values {
-	my ($stream, $type) = @_;
-
-	my $res;
-	my $cur = $stream;
-
-	print "$stream\n" if ($dbg_values > 1);
-
-	while (length($cur)) {
-		print " <" . join('', @av_paren_type) .
-					"> <$type> " if ($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 =~ /^($Type)/) {
-			print "DECLARE($1)\n" if ($dbg_values > 1);
-			$type = 'T';
-
-		} elsif ($cur =~ /^(#\s*define\s*$Ident)(\(?)/o) {
-			print "DEFINE($1)\n" if ($dbg_values > 1);
-			$av_preprocessor = 1;
-			$av_pending = 'N';
-
-		} elsif ($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);
-			$type = 'N';
-
-		} elsif ($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]);
-
-			$type = 'N';
-
-		} elsif ($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);
-			$type = 'N';
-
-		} elsif ($cur =~ /^(\\\n)/o) {
-			print "PRECONT($1)\n" if ($dbg_values > 1);
-
-		} 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|typeof|__typeof__|for)\b/o) {
-			print "COND($1)\n" if ($dbg_values > 1);
-			$av_pending = 'N';
-			$type = 'N';
-
-		} elsif ($cur =~/^(return|case|else)/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)\(/o) {
-			print "FUNC($1)\n" if ($dbg_values > 1);
-			$av_pending = 'V';
-
-		} elsif ($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);
-			$type = 'E';
-
-		} elsif ($cur =~ /^(;|\?|:|\[)/o) {
-			print "CLOSE($1)\n" if ($dbg_values > 1);
-			$type = 'N';
-
-		} elsif ($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 $res;
-}
-
-sub possible {
-	my ($possible, $line) = @_;
-
-	#print "CHECK<$possible>\n";
-	if ($possible !~ /^(?:$Storage|$Type|DEFINE_\S+)$/ &&
-	    $possible ne 'goto' && $possible ne 'return' &&
-	    $possible ne 'struct' && $possible ne 'enum' &&
-	    $possible ne 'case' && $possible ne 'else' &&
-	    $possible ne 'typedef') {
-		warn "POSSIBLE: $possible ($line)\n" if ($dbg_possible);
-		push(@typeList, $possible);
-		build_types();
-	}
-}
-
-my $prefix = '';
-
-sub report {
-	my $line = $prefix . $_[0];
-
-	$line = (split('\n', $line))[0] . "\n" if ($terse);
-
-	push(our @report, $line);
-}
-sub report_dump {
-	our @report;
-}
-sub ERROR {
-	report("ERROR: $_[0]\n");
-	our $clean = 0;
-	our $cnt_error++;
-}
-sub WARN {
-	report("WARNING: $_[0]\n");
-	our $clean = 0;
-	our $cnt_warn++;
-}
-sub CHK {
-	if ($check) {
-		report("CHECK: $_[0]\n");
-		our $clean = 0;
-		our $cnt_chk++;
-	}
-}
-
-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;
-
-	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 $prev_values = 'E';
-
-	# suppression flags
-	my $suppress_ifbraces = 0;
-
-	# Pre-scan the patch sanitizing the lines.
-	# Pre-scan the patch looking for any __setup documentation.
-	#
-	my @setup_docs = ();
-	my $setup_docs = 0;
-	my $line;
-	foreach my $rawline (@rawlines) {
-		# Standardise the strings and chars within the input to
-		# simplify matching.
-		$line = sanitise_line($rawline);
-		push(@lines, $line);
-
-		##print "==>$rawline\n";
-		##print "-->$line\n";
-
-		if ($line=~/^\+\+\+\s+(\S+)/) {
-			$setup_docs = 0;
-			if ($1 =~ m@Documentation/kernel-parameters.txt$@) {
-				$setup_docs = 1;
-			}
-			next;
-		}
-
-		if ($setup_docs && $line =~ /^\+/) {
-			push(@setup_docs, $line);
-		}
-	}
-
-	$prefix = '';
-
-	foreach my $line (@lines) {
-		$linenr++;
-
-		my $rawline = $rawlines[$linenr - 1];
-
-#extract the filename as it passes
-		if ($line=~/^\+\+\+\s+(\S+)/) {
-			$realfile=$1;
-			$realfile =~ s@^[^/]*/@@;
-			$in_comment = 0;
-			next;
-		}
-#extract the line range in the file after the patch is applied
-		if ($line=~/^\@\@ -\d+(?:,\d+)? \+(\d+)(,(\d+))? \@\@/) {
-			$is_patch = 1;
-			$first_line = $linenr + 1;
-			$in_comment = 0;
-			$realline=$1-1;
-			if (defined $2) {
-				$realcnt=$3+1;
-			} else {
-				$realcnt=1+1;
-			}
-			annotate_reset();
-			$prev_values = 'E';
-
-			$suppress_ifbraces = $linenr - 1;
-			next;
-		}
-
-# track the line number as we move through the hunk, note that
-# new versions of GNU diff omit the leading space on completely
-# blank context lines so we need to count that too.
-		if ($line =~ /^( |\+|$)/) {
-			$realline++;
-			$realcnt-- if ($realcnt != 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.
-			if ($linenr == $first_line) {
-				my $edge;
-				for (my $ln = $first_line; $ln < ($linenr + $realcnt); $ln++) {
-					($edge) = ($rawlines[$ln - 1] =~ m@(/\*|\*/)@);
-					last if (defined $edge);
-				}
-				if (defined $edge && $edge eq '*/') {
-					$in_comment = 1;
-				}
-			}
-
-			# Guestimate if this is a continuing comment.  If this
-			# is the start of a diff block and this line starts
-			# ' *' then it is very likely a comment.
-			if ($linenr == $first_line and $rawline =~ m@^.\s* \*(?:\s|$)@) {
-				$in_comment = 1;
-			}
-
-			# Find the last comment edge on _this_ line.
-			$comment_edge = 0;
-			while (($rawline =~ m@(/\*|\*/)@g)) {
-				if ($1 eq '/*') {
-					$in_comment = 1;
-				} else {
-					$in_comment = 0;
-				}
-				$comment_edge = 1;
-			}
-
-			# Measure the line length and indent.
-			($length, $indent) = line_stats($rawline);
-
-			# Track the previous line.
-			($prevline, $stashline) = ($stashline, $line);
-			($previndent, $stashindent) = ($stashindent, $indent);
-			($prevrawline, $stashrawline) = ($stashrawline, $rawline);
-
-			#warn "ic<$in_comment> ce<$comment_edge> line<$line>\n";
-
-		} elsif ($realcnt == 1) {
-			$realcnt--;
-		}
-
-#make up the handle for any error we report on this line
-		$here = "#$linenr: " if (!$file);
-		$here = "#$realline: " if ($file);
-		$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";
-
-		$prefix = "$filename:$realline: " if ($emacs && $file);
-		$prefix = "$filename:$linenr: " if ($emacs && !$file);
-		$cnt_lines++ if ($realcnt != 0);
-
-#check the patch for a signoff:
-		if ($line =~ /^\s*signed-off-by:/i) {
-			# This is a signoff, if ugly, so do not double report.
-			$signoff++;
-			if (!($line =~ /^\s*Signed-off-by:/)) {
-				WARN("Signed-off-by: is the preferred form\n" .
-					$herecurr);
-			}
-			if ($line =~ /^\s*signed-off-by:\S/i) {
-				WARN("need space after Signed-off-by:\n" .
-					$herecurr);
-			}
-		}
-
-# Check for wrappage within a valid hunk of the file
-		if ($realcnt != 0 && $line !~ m{^(?:\+|-| |\\ No newline|$)}) {
-			ERROR("patch seems to be corrupt (line wrapped?)\n" .
-				$herecurr) if (!$emitted_corrupt++);
-		}
-
-# UTF-8 regex found at http://www.w3.org/International/questions/qa-forms-utf-8.en.php
-		if (($realfile =~ /^$/ || $line =~ /^\+/) &&
-		     !($rawline =~ m/^(
-				[\x09\x0A\x0D\x20-\x7E]              # ASCII
-				| [\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 )) {
-			ERROR("Invalid UTF-8, patch and commit message should be encoded in UTF-8\n" . $herecurr);
-		}
-
-#ignore lines being removed
-		if ($line=~/^-/) {next;}
-
-# check we are in a valid source file if not then ignore this hunk
-		next if ($realfile !~ /\.(h|c|s|S|pl|sh)$/);
-
-#trailing whitespace
-		if ($line =~ /^\+.*\015/) {
-			my $herevet = "$here\n" . cat_vet($rawline) . "\n";
-			ERROR("DOS line endings\n" . $herevet);
-
-		} elsif ($rawline =~ /^\+.*\S\s+$/ || $rawline =~ /^\+\s+$/) {
-			my $herevet = "$here\n" . cat_vet($rawline) . "\n";
-			ERROR("trailing whitespace\n" . $herevet);
-		}
-#80 column limit
-		if ($line =~ /^\+/ && !($prevrawline=~/\/\*\*/) && $length > 80) {
-			WARN("line over 80 characters\n" . $herecurr);
-		}
-
-# check for adding lines without a newline.
-		if ($line =~ /^\+/ && defined $lines[$linenr] && $lines[$linenr] =~ /^\\ No newline at end of file/) {
-			WARN("adding a line without newline at end of file\n" . $herecurr);
-		}
-
-# check we are in a valid source file *.[hc] if not then ignore this hunk
-		next if ($realfile !~ /\.[hc]$/);
-
-# at the beginning of a line any tabs must come first and anything
-# more than 8 must use tabs.
-		if ($rawline =~ /^\+\s* \t\s*\S/ ||
-		    $rawline =~ /^\+\s*        \s*/) {
-			my $herevet = "$here\n" . cat_vet($rawline) . "\n";
-			ERROR("use tabs not spaces\n" . $herevet);
-		}
-
-# check for RCS/CVS revision markers
-		if ($rawline =~ /^\+.*\$(Revision|Log|Id)(?:\$|)/) {
-			WARN("CVS style keyword markers, these will _not_ be updated\n". $herecurr);
-		}
-
-# The rest of our checks refer specifically to C style
-# only apply those _outside_ comments.  Only skip
-# lines in the middle of comments.
-		next if (!$comment_edge && $in_comment);
-
-# Check for potential 'bare' types
-		if ($realcnt) {
-			my ($s, $c) = ctx_statement_block($linenr, $realcnt, 0);
-			$s =~ s/\n./ /g;
-			$s =~ s/{.*$//;
-
-			# Ignore goto labels.
-			if ($s =~ /$Ident:\*$/) {
-
-			# Ignore functions being called
-			} elsif ($s =~ /^.\s*$Ident\s*\(/) {
-
-			# definitions in global scope can only start with types
-			} elsif ($s =~ /^.(?:$Storage\s+)?(?:$Inline\s+)?(?:const\s+)?($Ident)\b/) {
-				possible($1, $s);
-
-			# declarations always start with types
-			} elsif ($prev_values eq 'E' && $s =~ /^.\s*(?:$Storage\s+)?(?:const\s+)?($Ident)\b(:?\s+$Sparse)?\s*\**\s*$Ident\s*(?:;|=|,)/) {
-				possible($1, $s);
-			}
-
-			# any (foo ... *) is a pointer cast, and foo is a type
-			while ($s =~ /\(($Ident)(?:\s+$Sparse)*\s*\*+\s*\)/g) {
-				possible($1, $s);
-			}
-
-			# Check for any sort of function declaration.
-			# int foo(something bar, other baz);
-			# void (*store_gdt)(x86_descr_ptr *);
-			if ($prev_values eq 'E' && $s =~ /^(.(?:typedef\s*)?(?:(?:$Storage|$Inline)\s*)*\s*$Type\s*(?:\b$Ident|\(\*\s*$Ident\))\s*)\(/) {
-				my ($name_len) = length($1);
-
-				my $ctx = $s;
-				substr($ctx, 0, $name_len + 1) = '';
-				$ctx =~ s/\)[^\)]*$//;
-
-				for my $arg (split(/\s*,\s*/, $ctx)) {
-					if ($arg =~ /^(?:const\s+)?($Ident)(?:\s+$Sparse)*\s*\**\s*(:?\b$Ident)?$/ || $arg =~ /^($Ident)$/) {
-
-						possible($1, $s);
-					}
-				}
-			}
-
-		}
-
-#
-# Checks which may be anchored in the context.
-#
-
-# Check for switch () and associated case and default
-# statements should be at the same indent.
-		if ($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 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*\(|do\b|else\b)/ && $line !~ /^.#/) {
-			my ($level, @ctx) = ctx_statement_level($linenr, $realcnt, 0);
-			my $ctx_ln = $linenr + $#ctx + 1;
-			my $ctx_cnt = $realcnt - $#ctx - 1;
-			my $ctx = join("\n", @ctx);
-
-			# Skip over any removed lines in the context following statement.
-			while ($ctx_cnt > 0 && $lines[$ctx_ln - 1] =~ /^-/) {
-				$ctx_ln++;
-				$ctx_cnt--;
-			}
-			##warn "line<$line>\nctx<$ctx>\nnext<$lines[$ctx_ln - 1]>";
-
-			if ($ctx !~ /{\s*/ && $ctx_cnt > 0 && $lines[$ctx_ln - 1] =~ /^\+\s*{/) {
-				ERROR("That open brace { should be on the previous line\n" .
-					"$here\n$ctx\n$lines[$ctx_ln - 1]");
-			}
-			if ($level == 0 && $ctx =~ /\)\s*\;\s*$/ && defined $lines[$ctx_ln - 1]) {
-				my ($nlength, $nindent) = line_stats($lines[$ctx_ln - 1]);
-				if ($nindent > $indent) {
-					WARN("Trailing semicolon indicates no statements, indent implies otherwise\n" .
-						"$here\n$ctx\n$lines[$ctx_ln - 1]");
-				}
-			}
-		}
-
-		# Track the 'values' across context and added lines.
-		my $opline = $line; $opline =~ s/^./ /;
-		my $curr_values = annotate_values($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";
-		}
-		$prev_values = substr($curr_values, -1);
-
-#ignore lines not being added
-		if ($line=~/^[^\+]/) {next;}
-
-# TEST: allow direct testing of the type matcher.
-		if ($tst_type && $line =~ /^.$Declare$/) {
-			ERROR("TEST: is type $Declare\n" . $herecurr);
-			next;
-		}
-
-# check for initialisation to aggregates open brace on the next line
-		if ($prevline =~ /$Declare\s*$Ident\s*=\s*$/ &&
-		    $line =~ /^.\s*{/) {
-			ERROR("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*include\s+[<"](.*)[">]}) {
-			my $path = $1;
-			if ($path =~ m{//}) {
-				ERROR("malformed #include filename\n" .
-					$herecurr);
-			}
-		}
-
-# no C99 // comments
-		if ($line =~ m{//}) {
-			ERROR("do not use C99 // comments\n" . $herecurr);
-		}
-		# Remove C99 comments.
-		$line =~ s@//.*@@;
-		$opline =~ s@//.*@@;
-
-#EXPORT_SYMBOL should immediately follow its function closing }.
-		if (($line =~ /EXPORT_SYMBOL.*\((.*)\)/) ||
-		    ($line =~ /EXPORT_UNUSED_SYMBOL.*\((.*)\)/)) {
-			my $name = $1;
-			if (($prevline !~ /^}/) &&
-			   ($prevline !~ /^\+}/) &&
-			   ($prevline !~ /^ }/) &&
-			   ($prevline !~ /^.DECLARE_$Ident\(\Q$name\E\)/) &&
-			   ($prevline !~ /^.LIST_HEAD\(\Q$name\E\)/) &&
-			   ($prevline !~ /\b\Q$name\E(?:\s+$Attribute)?\s*(?:;|=|\[)/)) {
-				WARN("EXPORT_SYMBOL(foo); should immediately follow its function/variable\n" . $herecurr);
-			}
-		}
-
-# check for external initialisers.
-		if ($line =~ /^.$Type\s*$Ident\s*=\s*(0|NULL);/) {
-			ERROR("do not initialise externals to 0 or NULL\n" .
-				$herecurr);
-		}
-# check for static initialisers.
-		if ($line =~ /\s*static\s.*=\s*(0|NULL);/) {
-			ERROR("do not initialise statics to 0 or NULL\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 !~ /\b__bitwise(?:__|)\b/) {
-			WARN("do not add new typedefs\n" . $herecurr);
-		}
-
-# * goes on variable not on type
-		if ($line =~ m{\($NonptrType(\*+)(?:\s+const)?\)}) {
-			ERROR("\"(foo$1)\" should be \"(foo $1)\"\n" .
-				$herecurr);
-
-		} elsif ($line =~ m{\($NonptrType\s+(\*+)(?!\s+const)\s+\)}) {
-			ERROR("\"(foo $1 )\" should be \"(foo $1)\"\n" .
-				$herecurr);
-
-		} elsif ($line =~ m{$NonptrType(\*+)(?:\s+(?:$Attribute|$Sparse))?\s+[A-Za-z\d_]+}) {
-			ERROR("\"foo$1 bar\" should be \"foo $1bar\"\n" .
-				$herecurr);
-
-		} elsif ($line =~ m{$NonptrType\s+(\*+)(?!\s+(?:$Attribute|$Sparse))\s+[A-Za-z\d_]+}) {
-			ERROR("\"foo $1 bar\" should be \"foo $1bar\"\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 should be avoided, code should be for the version to which it is merged\n" . $herecurr);
-		}
-
-# printk should use KERN_* levels.  Note that follow on printk's on the
-# same line do not need a level, so we use the current block context
-# to try and find and validate the current printk.  In summary the current
-# printk includes all preceeding printk's which have no newline on the end.
-# we assume the first bad printk is the one to report.
-		if ($line =~ /\bprintk\((?!KERN_)\s*"/) {
-			my $ok = 0;
-			for (my $ln = $linenr - 1; $ln >= $first_line; $ln--) {
-				#print "CHECK<$lines[$ln - 1]\n";
-				# we have a preceeding printk if it ends
-				# with "\n" ignore it, else it is to blame
-				if ($lines[$ln - 1] =~ m{\bprintk\(}) {
-					if ($rawlines[$ln - 1] !~ m{\\n"}) {
-						$ok = 1;
-					}
-					last;
-				}
-			}
-			if ($ok == 0) {
-				WARN("printk() should include KERN_ facility level\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*[A-Za-z\d_]+\(.*\).*\s{/) and
-		    !($line=~/\#define.*do\s{/) and !($line=~/}/)) {
-			ERROR("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 '{' following $1 go on the same line\n" . $hereprev);
-		}
-
-# check for spaces between functions and their parentheses.
-		while ($line =~ /($Ident)\s+\(/g) {
-			my $name = $1;
-			my $ctx = substr($line, 0, $-[1]);
-
-			# Ignore those directives where spaces _are_ permitted.
-			if ($name =~ /^(?:if|for|while|switch|return|volatile|__volatile__|__attribute__|format|__extension__|Copyright|case|__asm__)$/) {
-
-			# cpp #define statements have non-optional spaces, ie
-			# if there is a space between the name and the open
-			# parenthesis it is simply not a parameter group.
-			} elsif ($ctx =~ /^.\#\s*define\s*$/) {
-
-			# If this whole things ends with a type its most
-			# likely a typedef for a function.
-			} elsif ("$ctx$name" =~ /$Type$/) {
-
-			} else {
-				WARN("no space between function name and open parenthesis '('\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]);
-
-				my $a = '';
-				$a = 'V' if ($elements[$n] ne '');
-				$a = 'W' if ($elements[$n] =~ /\s$/);
-				$a = 'C' if ($elements[$n] =~ /$;$/);
-				$a = 'B' if ($elements[$n] =~ /(\[|\()$/);
-				$a = 'O' if ($elements[$n] eq '');
-				$a = 'E' if ($elements[$n] eq '' && $n == 0);
-
-				my $op = $elements[$n + 1];
-
-				my $c = '';
-				if (defined $elements[$n + 2]) {
-					$c = 'V' if ($elements[$n + 2] ne '');
-					$c = 'W' if ($elements[$n + 2] =~ /^\s/);
-					$c = 'C' if ($elements[$n + 2] =~ /^$;/);
-					$c = 'B' if ($elements[$n + 2] =~ /^(\)|\]|;)/);
-					$c = 'O' if ($elements[$n + 2] eq '');
-					$c = 'E' if ($elements[$n + 2] =~ /\s*\\$/);
-				} else {
-					$c = 'E';
-				}
-
-				# Pick up the preceeding 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 $ctx = "${a}x${c}";
-
-				my $at = "(ctx:$ctx)";
-
-				my $ptr = substr($blank, 0, $off) . "^";
-				my $hereptr = "$hereline$ptr\n";
-
-				# Classify operators into binary, unary, or
-				# definitions (* only) where they have more
-				# than one mode.
-				my $op_type = substr($curr_values, $off + 1, 1);
-				my $op_left = substr($curr_values, $off, 1);
-				my $is_unary;
-				if ($op_type eq 'T') {
-					$is_unary = 2;
-				} elsif ($op_left eq 'V') {
-					$is_unary = 0;
-				} else {
-					$is_unary = 1;
-				}
-				#if ($op eq '-' || $op eq '&' || $op eq '*') {
-				#	print "UNARY: <$op_left$op_type $is_unary $a:$op:$c> <$ca:$op:$cc> <$unary_ctx>\n";
-				#}
-
-				# Ignore operators passed as parameters.
-				if ($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 !~ /^\\/ && $cc !~ /^;/) {
-						ERROR("need space after that '$op' $at\n" . $hereptr);
-					}
-
-				# // is a comment
-				} elsif ($op eq '//') {
-
-				# -> should have no spaces
-				} elsif ($op eq '->') {
-					if ($ctx =~ /Wx.|.xW/) {
-						ERROR("no spaces around that '$op' $at\n" . $hereptr);
-					}
-
-				# , must have a space on the right.
-				} elsif ($op eq ',') {
-					if ($ctx !~ /.x[WEC]/ && $cc !~ /^}/) {
-						ERROR("need space after that '$op' $at\n" . $hereptr);
-					}
-
-				# '*' as part of a type definition -- reported already.
-				} elsif ($op eq '*' && $is_unary == 2) {
-					#warn "'*' is part of type\n";
-
-				# unary operators should have a space before and
-				# none after.  May be left adjacent to another
-				# unary operator, or a cast
-				} elsif ($op eq '!' || $op eq '~' ||
-				         ($is_unary && ($op eq '*' || $op eq '-' || $op eq '&'))) {
-					if ($ctx !~ /[WEBC]x./ && $ca !~ /(?:\)|!|~|\*|-|\&|\||\+\+|\-\-|\{)$/) {
-						ERROR("need space before that '$op' $at\n" . $hereptr);
-					}
-					if ($ctx =~ /.xW/) {
-						ERROR("no space after that '$op' $at\n" . $hereptr);
-					}
-
-				# unary ++ and unary -- are allowed no space on one side.
-				} elsif ($op eq '++' or $op eq '--') {
-					if ($ctx !~ /[WOBC]x[^W]/ && $ctx !~ /[^W]x[WOBEC]/) {
-						ERROR("need space one side of that '$op' $at\n" . $hereptr);
-					}
-					if ($ctx =~ /WxB/ || ($ctx =~ /Wx./ && $cc =~ /^;/)) {
-						ERROR("no space before that '$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 !~ /VxV|WxW|VxE|WxE|VxO|Cx.|.xC/) {
-						ERROR("need consistent spacing around '$op' $at\n" .
-							$hereptr);
-					}
-
-				# All the others need spaces both sides.
-				} elsif ($ctx !~ /[EWC]x[CWE]/) {
-					# Ignore email addresses <foo@bar>
-					if (!($op eq '<' && $cb =~ /$;\S+\@\S+>/) &&
-					    !($op eq '>' && $cb =~ /<\S+\@\S+$;/)) {
-						ERROR("need spaces 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 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("declaring multiple variables together should be avoided\n" . $herecurr);
-## 			}
-## 		}
-
-#need space before brace following if, while, etc
-		if (($line =~ /\(.*\){/ && $line !~ /\($Type\){/) ||
-		    $line =~ /do{/) {
-			ERROR("need a space 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("need a space after that close brace '}'\n" . $herecurr);
-		}
-
-# check spacing on square brackets
-		if ($line =~ /\[\s/ && $line !~ /\[\s*$/) {
-			ERROR("no space after that open square bracket '['\n" . $herecurr);
-		}
-		if ($line =~ /\s\]/) {
-			ERROR("no space before that close square bracket ']'\n" . $herecurr);
-		}
-
-# check spacing on paretheses
-		if ($line =~ /\(\s/ && $line !~ /\(\s*(?:\\)?$/ &&
-		    $line !~ /for\s*\(\s+;/) {
-			ERROR("no space after that open parenthesis '('\n" . $herecurr);
-		}
-		if ($line =~ /(\s+)\)/ && $line !~ /^.\s*\)/ &&
-		    $line !~ /for\s*\(.*;\s+\)/) {
-			ERROR("no space 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("labels should not be indented\n" . $herecurr);
-		}
-
-# Need a space before open parenthesis after if, while etc
-		if ($line=~/\b(if|while|for|switch)\(/) {
-			ERROR("need a space before the open parenthesis '('\n" . $herecurr);
-		}
-
-# Check for illegal assignment in if conditional.
-		if ($line =~ /\bif\s*\(/) {
-			my ($s, $c) = ctx_statement_block($linenr, $realcnt, 0);
-
-			if ($c =~ /\bif\s*\(.*[^<>!=]=[^=].*/) {
-				ERROR("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) && $s !~ /^\s*({|;|)\s*\\*\s*$/) {
-				ERROR("trailing statements should be on next line\n" . $herecurr);
-			}
-		}
-
-# Check for bitwise tests written as boolean
-		if ($line =~ /
-			(?:
-				(?:\[|\(|\&\&|\|\|)
-				\s*0[xX][0-9]+\s*
-				(?:\&\&|\|\|)
-			|
-				(?:\&\&|\|\|)
-				\s*0[xX][0-9]+\s*
-				(?:\&\&|\|\||\)|\])
-			)/x)
-		{
-			WARN("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 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 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 should follow close brace '}'\n" . $hereprev);
-			}
-		}
-
-#studly caps, commented out until figure out how to distinguish between use of existing and adding new
-#		if (($line=~/[\w_][a-z\d]+[A-Z]/) and !($line=~/print/)) {
-#		    print "No studly caps, use _\n";
-#		    print "$herecurr";
-#		    $clean = 0;
-#		}
-
-#no spaces allowed after \ in define
-		if ($line=~/\#define.*\\\s$/) {
-			WARN("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*include\s*\<asm\/(.*)\.h\>}) {
-			my $checkfile = "$root/include/linux/$1.h";
-			if (-f $checkfile && $1 ne 'irq.h') {
-				CHK("Use #include <linux/$1.h> instead of <asm/$1.h>\n" .
-					$herecurr);
-			}
-		}
-
-# multi-statement macros should be enclosed in a do while loop, grab the
-# first statement and ensure its the whole macro if its not enclosed
-# in a known good container
-		if ($prevline =~ /\#define.*\\/ &&
-		   $prevline !~/(?:do\s+{|\(\{|\{)/ &&
-		   $line !~ /(?:do\s+{|\(\{|\{)/ &&
-		   $line !~ /^.\s*$Declare\s/) {
-			# Grab the first statement, if that is the entire macro
-			# its ok.  This may start either on the #define line
-			# or the one below.
-			my $ln = $linenr;
-			my $cnt = $realcnt;
-			my $off = 0;
-
-			# If the macro starts on the define line start
-			# grabbing the statement after the identifier
-			$prevline =~ m{^(.#\s*define\s*$Ident(?:\([^\)]*\))?\s*)(.*)\\\s*$};
-			##print "1<$1> 2<$2>\n";
-			if (defined $2 && $2 ne '') {
-				$off = length($1);
-				$ln--;
-				$cnt++;
-				while ($lines[$ln - 1] =~ /^-/) {
-					$ln--;
-					$cnt++;
-				}
-			}
-			my @ctx = ctx_statement($ln, $cnt, $off);
-			my $ctx_ln = $ln + $#ctx + 1;
-			my $ctx = join("\n", @ctx);
-
-			# Pull in any empty extension lines.
-			while ($ctx =~ /\\$/ &&
-			       $lines[$ctx_ln - 1] =~ /^.\s*(?:\\)?$/) {
-				$ctx .= $lines[$ctx_ln - 1];
-				$ctx_ln++;
-			}
-
-			if ($ctx =~ /\\$/) {
-				if ($ctx =~ /;/) {
-					ERROR("Macros with multiple statements should be enclosed in a do - while loop\n" . "$here\n$ctx\n");
-				} else {
-					ERROR("Macros with complex values should be enclosed in parenthesis\n" . "$here\n$ctx\n");
-				}
-			}
-		}
-
-# check for redundant bracing round if etc
-		if ($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 = 0;
-				my $seen = 0;
-				my $herectx = $here . "\n";;
-				my $ln = $linenr - 1;
-				for my $chunk (@chunks) {
-					my ($cond, $block) = @{$chunk};
-
-					$herectx .= "$rawlines[$ln]\n[...]\n";
-					$ln += statement_rawlines($block) - 1;
-
-					substr($block, 0, length($cond)) = '';
-
-					$seen++ if ($block =~ /^\s*{/);
-
-					#print "cond<$cond> block<$block> allowed<$allowed>\n";
-					if (statement_lines($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";
-						$allowed = 1;
-					}
-				}
-				if ($seen && !$allowed) {
-					WARN("braces {} are not necessary for any arm of this statement\n" . $herectx);
-				}
-				# Either way we have looked over this whole
-				# statement and said what needs to be said.
-				$suppress_ifbraces = $endln;
-			}
-		}
-		if ($linenr > $suppress_ifbraces &&
-					$line =~ /\b(if|while|for|else)\b/) {
-			my ($level, $endln, @chunks) =
-				ctx_statement_full($linenr, $realcnt, $-[0]);
-
-			my $allowed = 0;
-
-			# Check the pre-context.
-			if (substr($line, 0, $-[0]) =~ /(\}\s*)$/) {
-				#print "APW: ALLOWED: pre<$1>\n";
-				$allowed = 1;
-			}
-			# Check the condition.
-			my ($cond, $block) = @{$chunks[0]};
-			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 $end = $linenr + statement_rawlines($block) - 1;
-
-				for (my $ln = $linenr - 1; $ln < $end; $ln++) {
-					$herectx .= $rawlines[$ln] . "\n";;
-				}
-
-				WARN("braces {} are not necessary for single statement blocks\n" . $herectx);
-			}
-		}
-
-# don't include deprecated include files (uses RAW line)
-		for my $inc (@dep_includes) {
-			if ($rawline =~ m@\#\s*include\s*\<$inc>@) {
-				ERROR("Don't use <$inc>: see Documentation/feature-removal-schedule.txt\n" . $herecurr);
-			}
-		}
-
-# don't use deprecated functions
-		for my $func (@dep_functions) {
-			if ($line =~ /\b$func\b/) {
-				ERROR("Don't use $func(): see Documentation/feature-removal-schedule.txt\n" . $herecurr);
-			}
-		}
-
-# no volatiles please
-		my $asm_volatile = qr{\b(__asm__|asm)\s+(__volatile__|volatile)\b};
-		if ($line =~ /\bvolatile\b/ && $line !~ /$asm_volatile/) {
-			WARN("Use of volatile is usually wrong: see Documentation/volatile-considered-harmful.txt\n" . $herecurr);
-		}
-
-# SPIN_LOCK_UNLOCKED & RW_LOCK_UNLOCKED are deprecated
-		if ($line =~ /\b(SPIN_LOCK_UNLOCKED|RW_LOCK_UNLOCKED)/) {
-			ERROR("Use of $1 is deprecated: see Documentation/spinlocks.txt\n" . $herecurr);
-		}
-
-# warn about #if 0
-		if ($line =~ /^.#\s*if\s+0\b/) {
-			CHK("if this code is redundant consider removing it\n" .
-				$herecurr);
-		}
-
-# check for needless kfree() checks
-		if ($prevline =~ /\bif\s*\(([^\)]*)\)/) {
-			my $expr = $1;
-			if ($line =~ /\bkfree\(\Q$expr\E\);/) {
-				WARN("kfree(NULL) is safe this check is probabally not required\n" . $hereprev);
-			}
-		}
-
-# warn about #ifdefs in C files
-#		if ($line =~ /^.#\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*(ifdef|ifndef|elif)\s\s+/) {
-			ERROR("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+;/) {
-			my $which = $1;
-			if (!ctx_has_comment($first_line, $linenr)) {
-				CHK("$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 without comment\n" . $herecurr);
-			}
-		}
-# check of hardware specific defines
-		if ($line =~ m@^.#\s*if.*\b(__i386__|__powerpc64__|__sun__|__s390x__)\b@ && $realfile !~ m@include/asm-@) {
-			CHK("architecture specific defines should be avoided\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 keyword should sit between storage class and type\n" . $herecurr);
-		}
-
-# Check for __inline__ and __inline, prefer inline
-		if ($line =~ /\b(__inline__|__inline)\b/) {
-			WARN("plain inline is preferred over $1\n" . $herecurr);
-		}
-
-# check for new externs in .c files.
-		if ($line =~ /^.\s*extern\s/ && ($realfile =~ /\.c$/)) {
-			WARN("externs should be avoided in .c files\n" .  $herecurr);
-		}
-
-# checks for new __setup's
-		if ($rawline =~ /\b__setup\("([^"]*)"/) {
-			my $name = $1;
-
-			if (!grep(/$name/, @setup_docs)) {
-				CHK("__setup appears un-documented -- check Documentation/kernel-parameters.txt\n" . $herecurr);
-			}
-		}
-
-# check for pointless casting of kmalloc return
-		if ($line =~ /\*\s*\)\s*k[czm]alloc\b/) {
-			WARN("unnecessary cast may hide bugs, see http://c-faq.com/malloc/mallocnocast.html\n" . $herecurr);
-		}
-
-# check for gcc specific __FUNCTION__
-		if ($line =~ /__FUNCTION__/) {
-			WARN("__func__ should be used instead of gcc specific __FUNCTION__\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("Does not appear to be a unified-diff format patch\n");
-	}
-	if ($is_patch && $chk_signoff && $signoff == 0) {
-		ERROR("Missing Signed-off-by: line(s)\n");
-	}
-
-	print report_dump();
-	if ($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 ($quiet == 0);
-	}
-
-	if ($clean == 1 && $quiet == 0) {
-		print "$vname has no obvious style problems and is ready for submission.\n"
-	}
-	if ($clean == 0 && $quiet == 0) {
-		print "$vname has style problems, please review.  If any of these errors\n";
-		print "are false positives report them to the maintainer, see\n";
-		print "CHECKPATCH in MAINTAINERS.\n";
-	}
-
-	return $clean;
-}