Merge 'akpm' patch series

* Merge akpm patch series: (122 commits)
  drivers/connector/cn_proc.c: remove unused local
  Documentation/SubmitChecklist: add RCU debug config options
  reiserfs: use hweight_long()
  reiserfs: use proper little-endian bitops
  pnpacpi: register disabled resources
  drivers/rtc/rtc-tegra.c: properly initialize spinlock
  drivers/rtc/rtc-twl.c: check return value of twl_rtc_write_u8() in twl_rtc_set_time()
  drivers/rtc: add support for Qualcomm PMIC8xxx RTC
  drivers/rtc/rtc-s3c.c: support clock gating
  drivers/rtc/rtc-mpc5121.c: add support for RTC on MPC5200
  init: skip calibration delay if previously done
  misc/eeprom: add eeprom access driver for digsy_mtc board
  misc/eeprom: add driver for microwire 93xx46 EEPROMs
  checkpatch.pl: update $logFunctions
  checkpatch: make utf-8 test --strict
  checkpatch.pl: add ability to ignore various messages
  checkpatch: add a "prefer __aligned" check
  checkpatch: validate signature styles and To: and Cc: lines
  checkpatch: add __rcu as a sparse modifier
  checkpatch: suggest using min_t or max_t
  ...

Did this as a merge because of (trivial) conflicts in
 - Documentation/feature-removal-schedule.txt
 - arch/xtensa/include/asm/uaccess.h
that were just easier to fix up in the merge than in the patch series.

2 files changed, 513 insertions, 152 deletions

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index b0aa2c680593..9d761c95eca2 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -10,7 +10,7 @@ use strict;
 my $P = $0;
 $P =~ s@.*/@@g;
 
-my $V = '0.31';
+my $V = '0.32';
 
 use Getopt::Long qw(:config no_auto_abbrev);
 
@@ -26,9 +26,13 @@ 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";
 
 sub help {
 	my ($exitcode) = @_;
@@ -46,6 +50,8 @@ Options:
   --terse                    one line per report
   -f, --file                 treat FILE as regular source file
   --subjective, --strict     enable more subjective tests
+  --ignore TYPE(,TYPE2...)   ignore various comma separated message types
+  --show-types               show the message "types" in the output
   --root=PATH                PATH to the kernel tree root
   --no-summary               suppress the per-file summary
   --mailback                 only produce a report in case of warnings/errors
@@ -63,6 +69,32 @@ EOM
 	exit($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,
@@ -73,6 +105,8 @@ GetOptions(
 	'f|file!'	=> \$file,
 	'subjective!'	=> \$check,
 	'strict!'	=> \$check,
+	'ignore=s'	=> \@ignore,
+	'show-types!'	=> \$show_types,
 	'root=s'	=> \$root,
 	'summary!'	=> \$summary,
 	'mailback!'	=> \$mailback,
@@ -93,6 +127,19 @@ if ($#ARGV < 0) {
 	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;
@@ -145,7 +192,8 @@ our $Sparse	= qr{
 			__must_check|
 			__init_refok|
 			__kprobes|
-			__ref
+			__ref|
+			__rcu
 		}x;
 
 # Notes to $Attribute:
@@ -209,13 +257,23 @@ our $typeTypedefs = qr{(?x:
 )};
 
 our $logFunctions = qr{(?x:
-	printk|
-	[a-z]+_(emerg|alert|crit|err|warning|warn|notice|info|debug|dbg|vdbg|devel|cont|WARN)|
-	WARN|
+	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|
 	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},
@@ -268,6 +326,20 @@ sub build_types {
 }
 build_types();
 
+our $match_balanced_parentheses = qr/(\((?:[^\(\)]+|(-1))*\))/;
+
+our $Typecast	= qr{\s*(\(\s*$NonptrType\s*\)){0,1}\s*};
+our $LvalOrFunc	= qr{($Lval)\s*($match_balanced_parentheses{0,1})\s*};
+
+sub deparenthesize {
+	my ($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 @dep_includes = ();
@@ -339,6 +411,88 @@ sub top_of_kernel_tree {
 		}
 	}
 	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 {
@@ -1086,12 +1240,21 @@ sub possible {
 
 my $prefix = '';
 
+sub show_type {
+       return !defined $ignore_type{$_[0]};
+}
+
 sub report {
-	if (defined $tst_only && $_[0] !~ /\Q$tst_only\E/) {
+	if (!show_type($_[1]) ||
+	    (defined $tst_only && $_[2] !~ /\Q$tst_only\E/)) {
 		return 0;
 	}
-	my $line = $prefix . $_[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);
@@ -1101,20 +1264,21 @@ sub report {
 sub report_dump {
 	our @report;
 }
+
 sub ERROR {
-	if (report("ERROR: $_[0]\n")) {
+	if (report("ERROR", $_[0], $_[1])) {
 		our $clean = 0;
 		our $cnt_error++;
 	}
 }
 sub WARN {
-	if (report("WARNING: $_[0]\n")) {
+	if (report("WARNING", $_[0], $_[1])) {
 		our $clean = 0;
 		our $cnt_warn++;
 	}
 }
 sub CHK {
-	if ($check && report("CHECK: $_[0]\n")) {
+	if ($check && report("CHECK", $_[0], $_[1])) {
 		our $clean = 0;
 		our $cnt_chk++;
 	}
@@ -1143,7 +1307,8 @@ sub check_absolute_file {
 
 	##print "prefix<$prefix>\n";
 	if ($prefix ne ".../") {
-		WARN("use relative pathname instead of absolute in changelog text\n" . $herecurr);
+		WARN("USE_RELATIVE_PATH",
+		     "use relative pathname instead of absolute in changelog text\n" . $herecurr);
 	}
 }
 
@@ -1340,11 +1505,13 @@ sub process {
 			$p1_prefix = $1;
 			if (!$file && $tree && $p1_prefix ne '' &&
 			    -e "$root/$p1_prefix") {
-				WARN("patch prefix '$p1_prefix' exists, appears to be a -p0 patch\n");
+				WARN("PATCH_PREFIX",
+				     "patch prefix '$p1_prefix' exists, appears to be a -p0 patch\n");
 			}
 
 			if ($realfile =~ m@^include/asm/@) {
-				ERROR("do not modify files in include/asm, change architecture specific files in include/asm-<architecture>\n" . "$here$rawline\n");
+				ERROR("MODIFIED_INCLUDE_ASM",
+				      "do not modify files in include/asm, change architecture specific files in include/asm-<architecture>\n" . "$here$rawline\n");
 			}
 			next;
 		}
@@ -1361,27 +1528,61 @@ sub process {
 		if ($line =~ /^new (file )?mode.*[7531]\d{0,2}$/) {
 			my $permhere = $here . "FILE: $realfile\n";
 			if ($realfile =~ /(Makefile|Kconfig|\.c|\.h|\.S|\.tmpl)$/) {
-				ERROR("do not set execute permissions for source files\n" . $permhere);
+				ERROR("EXECUTE_PERMISSIONS",
+				      "do not set execute permissions for source files\n" . $permhere);
 			}
 		}
 
-#check the patch for a signoff:
+# 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" .
-					$herecurr);
+		}
+
+# Check signature styles
+		if ($line =~ /^(\s*)($signature_tags)(\s*)(.*)/) {
+			my $space_before = $1;
+			my $sign_off = $2;
+			my $space_after = $3;
+			my $email = $4;
+			my $ucfirst_sign_off = ucfirst(lc($sign_off));
+
+			if (defined $space_before && $space_before ne "") {
+				WARN("BAD_SIGN_OFF",
+				     "Do not use whitespace before $ucfirst_sign_off\n" . $herecurr);
 			}
-			if ($line =~ /^\s*signed-off-by:\S/i) {
-				WARN("space required after Signed-off-by:\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("patch seems to be corrupt (line wrapped?)\n" .
+			ERROR("CORRUPTED_PATCH",
+			      "patch seems to be corrupt (line wrapped?)\n" .
 				$herecurr) if (!$emitted_corrupt++);
 		}
 
@@ -1408,7 +1609,8 @@ sub process {
 			my $ptr = substr($blank, 0, length($utf8_prefix)) . "^";
 			my $hereptr = "$hereline$ptr\n";
 
-			ERROR("Invalid UTF-8, patch and commit message should be encoded in UTF-8\n" . $hereptr);
+			CHK("INVALID_UTF8",
+			    "Invalid UTF-8, patch and commit message should be encoded in UTF-8\n" . $hereptr);
 		}
 
 # ignore non-hunk lines and lines being removed
@@ -1417,11 +1619,13 @@ sub process {
 #trailing whitespace
 		if ($line =~ /^\+.*\015/) {
 			my $herevet = "$here\n" . cat_vet($rawline) . "\n";
-			ERROR("DOS line endings\n" . $herevet);
+			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\n" . $herevet);
+			ERROR("TRAILING_WHITESPACE",
+			      "trailing whitespace\n" . $herevet);
 			$rpt_cleaners = 1;
 		}
 
@@ -1452,7 +1656,8 @@ sub process {
 				}
 				$length++;
 			}
-			WARN("please write a paragraph that describes the config symbol fully\n" . $herecurr) if ($is_end && $length < 4);
+			WARN("CONFIG_DESCRIPTION",
+			     "please write a paragraph that describes the config symbol fully\n" . $herecurr) if ($is_end && $length < 4);
 			#print "is_end<$is_end> length<$length>\n";
 		}
 
@@ -1466,28 +1671,33 @@ sub process {
 		    $line =~ /^\+\s*"[^"]*"\s*(?:\s*|,|\)\s*;)\s*$/) &&
 		    $length > 80)
 		{
-			WARN("line over 80 characters\n" . $herecurr);
+			WARN("LONG_LINE",
+			     "line over 80 characters\n" . $herecurr);
 		}
 
 # check for spaces before a quoted newline
 		if ($rawline =~ /^.*\".*\s\\n/) {
-			WARN("unnecessary whitespace before a quoted newline\n" . $herecurr);
+			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("adding a line without newline at end of file\n" . $herecurr);
+			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("use the LO() macro, not (... & 0xFFFF)\n" . $herevet);
+				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("use the HI() macro, not (... >> 16)\n" . $herevet);
+				ERROR("HI_MACRO",
+				      "use the HI() macro, not (... >> 16)\n" . $herevet);
 			}
 		}
 
@@ -1499,14 +1709,16 @@ sub process {
 		if ($rawline =~ /^\+\s* \t\s*\S/ ||
 		    $rawline =~ /^\+\s*        \s*/) {
 			my $herevet = "$here\n" . cat_vet($rawline) . "\n";
-			ERROR("code indent should use tabs where possible\n" . $herevet);
+			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("please, no space before tabs\n" . $herevet);
+			WARN("SPACE_BEFORE_TAB",
+			     "please, no space before tabs\n" . $herevet);
 		}
 
 # check for spaces at the beginning of a line.
@@ -1516,7 +1728,8 @@ sub process {
 #  3) hanging labels
 		if ($rawline =~ /^\+ / && $line !~ /\+ *(?:$;|#|$Ident:)/)  {
 			my $herevet = "$here\n" . cat_vet($rawline) . "\n";
-			WARN("please, no spaces at the start of a line\n" . $herevet);
+			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
@@ -1524,17 +1737,20 @@ sub process {
 
 # check for RCS/CVS revision markers
 		if ($rawline =~ /^\+.*\$(Revision|Log|Id)(?:\$|)/) {
-			WARN("CVS style keyword markers, these will _not_ be updated\n". $herecurr);
+			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("use the CSYNC() macro in asm/blackfin.h\n" . $herevet);
+			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("use the SSYNC() macro in asm/blackfin.h\n" . $herevet);
+			ERROR("SSYNC",
+			      "use the SSYNC() macro in asm/blackfin.h\n" . $herevet);
 		}
 
 # Check for potential 'bare' types
@@ -1623,7 +1839,8 @@ sub process {
 				}
 			}
 			if ($err ne '') {
-				ERROR("switch and case should be at the same indent\n$hereline$err");
+				ERROR("SWITCH_CASE_INDENT_LEVEL",
+				      "switch and case should be at the same indent\n$hereline$err");
 			}
 		}
 
@@ -1651,7 +1868,8 @@ sub process {
 			#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("that open brace { should be on the previous line\n" .
+				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*\($/ &&
@@ -1660,7 +1878,8 @@ sub process {
 			{
 				my ($nlength, $nindent) = line_stats($lines[$ctx_ln - 1]);
 				if ($nindent > $indent) {
-					WARN("trailing semicolon indicates no statements, indent implies otherwise\n" .
+					WARN("TRAILING_SEMICOLON",
+					     "trailing semicolon indicates no statements, indent implies otherwise\n" .
 						"$here\n$ctx\n$rawlines[$ctx_ln - 1]\n");
 				}
 			}
@@ -1748,7 +1967,8 @@ sub process {
 
 			if ($check && (($sindent % 8) != 0 ||
 			    ($sindent <= $indent && $s ne ''))) {
-				WARN("suspect code indent for conditional statements ($indent, $sindent)\n" . $herecurr . "$stat_real\n");
+				WARN("SUSPECT_CODE_INDENT",
+				     "suspect code indent for conditional statements ($indent, $sindent)\n" . $herecurr . "$stat_real\n");
 			}
 		}
 
@@ -1771,18 +1991,22 @@ sub process {
 # TEST: allow direct testing of the type matcher.
 		if ($dbg_type) {
 			if ($line =~ /^.\s*$Declare\s*$/) {
-				ERROR("TEST: is type\n" . $herecurr);
+				ERROR("TEST_TYPE",
+				      "TEST: is type\n" . $herecurr);
 			} elsif ($dbg_type > 1 && $line =~ /^.+($Declare)/) {
-				ERROR("TEST: is not type ($1 is)\n". $herecurr);
+				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: is attr\n" . $herecurr);
+				ERROR("TEST_ATTR",
+				      "TEST: is attr\n" . $herecurr);
 			} elsif ($dbg_attr > 1 && $line =~ /^.+($Modifier)/) {
-				ERROR("TEST: is not attr ($1 is)\n". $herecurr);
+				ERROR("TEST_NOT_ATTR",
+				      "TEST: is not attr ($1 is)\n". $herecurr);
 			}
 			next;
 		}
@@ -1790,7 +2014,8 @@ sub process {
 # check for initialisation to aggregates open brace on the next line
 		if ($line =~ /^.\s*{/ &&
 		    $prevline =~ /(?:^|[^=])=\s*$/) {
-			ERROR("that open brace { should be on the previous line\n" . $hereprev);
+			ERROR("OPEN_BRACE",
+			      "that open brace { should be on the previous line\n" . $hereprev);
 		}
 
 #
@@ -1801,14 +2026,16 @@ sub process {
 		if ($rawline =~ m{^.\s*\#\s*include\s+[<"](.*)[">]}) {
 			my $path = $1;
 			if ($path =~ m{//}) {
-				ERROR("malformed #include filename\n" .
+				ERROR("MALFORMED_INCLUDE",
+				      "malformed #include filename\n" .
 					$herecurr);
 			}
 		}
 
 # no C99 // comments
 		if ($line =~ m{//}) {
-			ERROR("do not use C99 // comments\n" . $herecurr);
+			ERROR("C99_COMMENTS",
+			      "do not use C99 // comments\n" . $herecurr);
 		}
 		# Remove C99 comments.
 		$line =~ s@//.*@@;
@@ -1855,35 +2082,41 @@ sub process {
 		}
 		if (defined $suppress_export{$linenr} &&
 		    $suppress_export{$linenr} == 2) {
-			WARN("EXPORT_SYMBOL(foo); should immediately follow its function/variable\n" . $herecurr);
+			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("do not initialise globals to 0 or NULL\n" .
+			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("do not initialise statics to 0 or NULL\n" .
+			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 should probably be static const char * const\n" .
+			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 char array declaration should probably be static const char\n" .
+			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("Use DEFINE_PCI_DEVICE_TABLE for struct pci_device_id\n" . $herecurr);
+			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
@@ -1893,7 +2126,8 @@ sub process {
 		    $line !~ /\btypedef\s+$Type\s+$Ident\s*\(/ &&
 		    $line !~ /\b$typeTypedefs\b/ &&
 		    $line !~ /\b__bitwise(?:__|)\b/) {
-			WARN("do not add new typedefs\n" . $herecurr);
+			WARN("NEW_TYPEDEFS",
+			     "do not add new typedefs\n" . $herecurr);
 		}
 
 # * goes on variable not on type
@@ -1911,7 +2145,8 @@ sub process {
 
 			#print "from<$from> to<$to>\n";
 			if ($from ne $to) {
-				ERROR("\"(foo$from)\" should be \"(foo$to)\"\n" .  $herecurr);
+				ERROR("POINTER_LOCATION",
+				      "\"(foo$from)\" should be \"(foo$to)\"\n" .  $herecurr);
 			}
 		} elsif ($line =~ m{\b$NonptrType(\s*(?:$Modifier\b\s*|\*\s*)+)($Ident)}) {
 			my ($from, $to, $ident) = ($1, $1, $2);
@@ -1928,7 +2163,8 @@ sub process {
 
 			#print "from<$from> to<$to> ident<$ident>\n";
 			if ($from ne $to && $ident !~ /^$Modifier$/) {
-				ERROR("\"foo${from}bar\" should be \"foo${to}bar\"\n" .  $herecurr);
+				ERROR("POINTER_LOCATION",
+				      "\"foo${from}bar\" should be \"foo${to}bar\"\n" .  $herecurr);
 			}
 		}
 
@@ -1940,12 +2176,14 @@ sub process {
 # 		}
 
 		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);
+			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("Prefer printk_ratelimited or pr_<level>_ratelimited to printk_ratelimit\n" . $herecurr);
+			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
@@ -1967,7 +2205,8 @@ sub process {
 				}
 			}
 			if ($ok == 0) {
-				WARN("printk() should include KERN_ facility level\n" . $herecurr);
+				WARN("PRINTK_WITHOUT_KERN_LEVEL",
+				     "printk() should include KERN_ facility level\n" . $herecurr);
 			}
 		}
 
@@ -1975,18 +2214,21 @@ sub process {
 # or if closed on same line
 		if (($line=~/$Type\s*$Ident\(.*\).*\s{/) and
 		    !($line=~/\#\s*define.*do\s{/) and !($line=~/}/)) {
-			ERROR("open brace '{' following function declarations go on the next line\n" . $herecurr);
+			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 '{' following $1 go on the same line\n" . $hereprev);
+			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("missing space after $1 definition\n" . $herecurr);
+		    WARN("SPACING",
+			 "missing space after $1 definition\n" . $herecurr);
 		}
 
 # check for spacing round square brackets; allowed:
@@ -1998,7 +2240,8 @@ sub process {
 			if ($prefix !~ /$Type\s+$/ &&
 			    ($where != 0 || $prefix !~ /^.\s+$/) &&
 			    $prefix !~ /{\s+$/) {
-				ERROR("space prohibited before open square bracket '['\n" . $herecurr);
+				ERROR("BRACKET_SPACE",
+				      "space prohibited before open square bracket '['\n" . $herecurr);
 			}
 		}
 
@@ -2029,7 +2272,8 @@ sub process {
 			} elsif ($ctx =~ /$Type$/) {
 
 			} else {
-				WARN("space prohibited between function name and open parenthesis '('\n" . $herecurr);
+				WARN("SPACING",
+				     "space prohibited between function name and open parenthesis '('\n" . $herecurr);
 			}
 		}
 # Check operator spacing.
@@ -2103,7 +2347,8 @@ sub process {
 				} elsif ($op eq ';') {
 					if ($ctx !~ /.x[WEBC]/ &&
 					    $cc !~ /^\\/ && $cc !~ /^;/) {
-						ERROR("space required after that '$op' $at\n" . $hereptr);
+						ERROR("SPACING",
+						      "space required after that '$op' $at\n" . $hereptr);
 					}
 
 				# // is a comment
@@ -2114,13 +2359,15 @@ sub process {
 				#   :   when part of a bitfield
 				} elsif ($op eq '->' || $opv eq ':B') {
 					if ($ctx =~ /Wx.|.xW/) {
-						ERROR("spaces prohibited around that '$op' $at\n" . $hereptr);
+						ERROR("SPACING",
+						      "spaces prohibited around that '$op' $at\n" . $hereptr);
 					}
 
 				# , must have a space on the right.
 				} elsif ($op eq ',') {
 					if ($ctx !~ /.x[WEC]/ && $cc !~ /^}/) {
-						ERROR("space required after that '$op' $at\n" . $hereptr);
+						ERROR("SPACING",
+						      "space required after that '$op' $at\n" . $hereptr);
 					}
 
 				# '*' as part of a type definition -- reported already.
@@ -2134,26 +2381,31 @@ sub process {
 					 $opv eq '*U' || $opv eq '-U' ||
 					 $opv eq '&U' || $opv eq '&&U') {
 					if ($ctx !~ /[WEBC]x./ && $ca !~ /(?:\)|!|~|\*|-|\&|\||\+\+|\-\-|\{)$/) {
-						ERROR("space required before that '$op' $at\n" . $hereptr);
+						ERROR("SPACING",
+						      "space required before that '$op' $at\n" . $hereptr);
 					}
 					if ($op eq '*' && $cc =~/\s*$Modifier\b/) {
 						# A unary '*' may be const
 
 					} elsif ($ctx =~ /.xW/) {
-						ERROR("space prohibited after that '$op' $at\n" . $hereptr);
+						ERROR("SPACING",
+						      "space prohibited after that '$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]/ && $ctx !~ /[^W]x[WOBEC]/) {
-						ERROR("space required one side of that '$op' $at\n" . $hereptr);
+						ERROR("SPACING",
+						      "space required one side of that '$op' $at\n" . $hereptr);
 					}
 					if ($ctx =~ /Wx[BE]/ ||
 					    ($ctx =~ /Wx./ && $cc =~ /^;/)) {
-						ERROR("space prohibited before that '$op' $at\n" . $hereptr);
+						ERROR("SPACING",
+						      "space prohibited before that '$op' $at\n" . $hereptr);
 					}
 					if ($ctx =~ /ExW/) {
-						ERROR("space prohibited after that '$op' $at\n" . $hereptr);
+						ERROR("SPACING",
+						      "space prohibited after that '$op' $at\n" . $hereptr);
 					}
 
 
@@ -2165,7 +2417,8 @@ sub process {
 					 $op eq '%')
 				{
 					if ($ctx =~ /Wx[^WCE]|[^WCE]xW/) {
-						ERROR("need consistent spacing around '$op' $at\n" .
+						ERROR("SPACING",
+						      "need consistent spacing around '$op' $at\n" .
 							$hereptr);
 					}
 
@@ -2173,7 +2426,8 @@ sub process {
 				# terminating a case value or a label.
 				} elsif ($opv eq ':C' || $opv eq ':L') {
 					if ($ctx =~ /Wx./) {
-						ERROR("space prohibited before that '$op' $at\n" . $hereptr);
+						ERROR("SPACING",
+						      "space prohibited before that '$op' $at\n" . $hereptr);
 					}
 
 				# All the others need spaces both sides.
@@ -2196,7 +2450,8 @@ sub process {
 					}
 
 					if ($ok == 0) {
-						ERROR("spaces required around that '$op' $at\n" . $hereptr);
+						ERROR("SPACING",
+						      "spaces required around that '$op' $at\n" . $hereptr);
 					}
 				}
 				$off += length($elements[$n + 1]);
@@ -2205,7 +2460,8 @@ sub process {
 
 # check for multiple assignments
 		if ($line =~ /^.\s*$Lval\s*=\s*$Lval\s*=(?!=)/) {
-			CHK("multiple assignments should be avoided\n" . $herecurr);
+			CHK("MULTIPLE_ASSIGNMENTS",
+			    "multiple assignments should be avoided\n" . $herecurr);
 		}
 
 ## # check for multiple declarations, allowing for a function declaration
@@ -2219,45 +2475,53 @@ sub process {
 ## 			while ($ln =~ s/\([^\(\)]*\)//g) {
 ## 			}
 ## 			if ($ln =~ /,/) {
-## 				WARN("declaring multiple variables together should be avoided\n" . $herecurr);
+## 				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("space required before the open brace '{'\n" . $herecurr);
+			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("space required after that close brace '}'\n" . $herecurr);
+			ERROR("SPACING",
+			      "space required after that close brace '}'\n" . $herecurr);
 		}
 
 # check spacing on square brackets
 		if ($line =~ /\[\s/ && $line !~ /\[\s*$/) {
-			ERROR("space prohibited after that open square bracket '['\n" . $herecurr);
+			ERROR("SPACING",
+			      "space prohibited after that open square bracket '['\n" . $herecurr);
 		}
 		if ($line =~ /\s\]/) {
-			ERROR("space prohibited before that close square bracket ']'\n" . $herecurr);
+			ERROR("SPACING",
+			      "space prohibited before that close square bracket ']'\n" . $herecurr);
 		}
 
 # check spacing on parentheses
 		if ($line =~ /\(\s/ && $line !~ /\(\s*(?:\\)?$/ &&
 		    $line !~ /for\s*\(\s+;/) {
-			ERROR("space prohibited after that open parenthesis '('\n" . $herecurr);
+			ERROR("SPACING",
+			      "space prohibited after that open parenthesis '('\n" . $herecurr);
 		}
 		if ($line =~ /(\s+)\)/ && $line !~ /^.\s*\)/ &&
 		    $line !~ /for\s*\(.*;\s+\)/ &&
 		    $line !~ /:\s+\)/) {
-			ERROR("space prohibited before that close parenthesis ')'\n" . $herecurr);
+			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("labels should not be indented\n" . $herecurr);
+			WARN("INDENTED_LABEL",
+			     "labels should not be indented\n" . $herecurr);
 		}
 
 # Return is not a function.
@@ -2276,23 +2540,47 @@ sub process {
 			}
 #print "value<$value>\n";
 			if ($value =~ /^\s*(?:$Ident|-?$Constant)\s*$/) {
-				ERROR("return is not a function, parentheses are not required\n" . $herecurr);
+				ERROR("RETURN_PARENTHESES",
+				      "return is not a function, parentheses are not required\n" . $herecurr);
 
 			} elsif ($spacing !~ /\s+/) {
-				ERROR("space required before the open parenthesis '('\n" . $herecurr);
+				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("return of an errno should typically be -ve (return -$1)\n" . $herecurr);
+				WARN("USE_NEGATIVE_ERRNO",
+				     "return of an errno should typically be -ve (return -$1)\n" . $herecurr);
+			}
+		}
+
+# typecasts on min/max could be min_t/max_t
+		if ($line =~ /^\+(?:.*?)\b(min|max)\s*\($Typecast{0,1}($LvalOrFunc)\s*,\s*$Typecast{0,1}($LvalOrFunc)\s*\)/) {
+			if (defined $2 || defined $8) {
+				my $call = $1;
+				my $cast1 = deparenthesize($2);
+				my $arg1 = $3;
+				my $cast2 = deparenthesize($8);
+				my $arg2 = $9;
+				my $cast;
+
+				if ($cast1 ne "" && $cast2 ne "") {
+					$cast = "$cast1 or $cast2";
+				} elsif ($cast1 ne "") {
+					$cast = $cast1;
+				} else {
+					$cast = $cast2;
+				}
+				WARN("$call() should probably be ${call}_t($cast, $arg1, $arg2)\n" . $herecurr);
 			}
 		}
 
 # Need a space before open parenthesis after if, while etc
 		if ($line=~/\b(if|while|for|switch)\(/) {
-			ERROR("space required before the open parenthesis '('\n" . $herecurr);
+			ERROR("SPACING", "space required before the open parenthesis '('\n" . $herecurr);
 		}
 
 # Check for illegal assignment in if conditional -- and check for trailing
@@ -2320,7 +2608,8 @@ sub process {
 			my ($s, $c) = ($stat, $cond);
 
 			if ($c =~ /\bif\s*\(.*[^<>!=]=[^=].*/s) {
-				ERROR("do not use assignment in if condition\n" . $herecurr);
+				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
@@ -2342,7 +2631,8 @@ sub process {
 					$stat_real = "[...]\n$stat_real";
 				}
 
-				ERROR("trailing statements should be on next line\n" . $herecurr . $stat_real);
+				ERROR("TRAILING_STATEMENTS",
+				      "trailing statements should be on next line\n" . $herecurr . $stat_real);
 			}
 		}
 
@@ -2358,7 +2648,8 @@ sub process {
 				(?:\&\&|\|\||\)|\])
 			)/x)
 		{
-			WARN("boolean test with hexadecimal, perhaps just 1 \& or \|?\n" . $herecurr);
+			WARN("HEXADECIMAL_BOOLEAN_TEST",
+			     "boolean test with hexadecimal, perhaps just 1 \& or \|?\n" . $herecurr);
 		}
 
 # if and else should not have general statements after it
@@ -2366,12 +2657,14 @@ sub process {
 			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);
+				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 should be on next line\n" .
+			ERROR("TRAILING_STATEMENTS",
+			      "trailing statements should be on next line\n" .
 				$herecurr);
 		}
 # case and default should not have general statements after them
@@ -2381,14 +2674,16 @@ sub process {
 			\s*return\s+
 		    )/xg)
 		{
-			ERROR("trailing statements should be on next line\n" . $herecurr);
+			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 should follow close brace '}'\n" . $hereprev);
+			ERROR("ELSE_AFTER_BRACE",
+			      "else should follow close brace '}'\n" . $hereprev);
 		}
 
 		if ($prevline=~/}\s*$/ and $line=~/^.\s*while\s*/ and
@@ -2401,7 +2696,8 @@ sub process {
 			$s =~ s/\n.*//g;
 
 			if ($s =~ /^\s*;/) {
-				ERROR("while should follow close brace '}'\n" . $hereprev);
+				ERROR("WHILE_AFTER_BRACE",
+				      "while should follow close brace '}'\n" . $hereprev);
 			}
 		}
 
@@ -2414,7 +2710,8 @@ sub process {
 
 #no spaces allowed after \ in define
 		if ($line=~/\#\s*define.*\\\s$/) {
-			WARN("Whitepspace after \\ makes next lines useless\n" . $herecurr);
+			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)
@@ -2426,9 +2723,11 @@ sub process {
 			    $1 !~ /$allowed_asm_includes/)
 			{
 				if ($realfile =~ m{^arch/}) {
-					CHK("Consider using #include <linux/$file> instead of <asm/$file>\n" . $herecurr);
+					CHK("ARCH_INCLUDE_LINUX",
+					    "Consider using #include <linux/$file> instead of <asm/$file>\n" . $herecurr);
 				} else {
-					WARN("Use #include <linux/$file> instead of <asm/$file>\n" . $herecurr);
+					WARN("INCLUDE_LINUX",
+					     "Use #include <linux/$file> instead of <asm/$file>\n" . $herecurr);
 				}
 			}
 		}
@@ -2512,7 +2811,8 @@ sub process {
 				if ($rest !~ /while\s*\(/ &&
 				    $dstat !~ /$exceptions/)
 				{
-					ERROR("Macros with multiple statements should be enclosed in a do - while loop\n" . "$here\n$ctx\n");
+					ERROR("MULTISTATEMENT_MACRO_USE_DO_WHILE",
+					      "Macros with multiple statements should be enclosed in a do - while loop\n" . "$here\n$ctx\n");
 				}
 
 			} elsif ($ctx !~ /;/) {
@@ -2522,7 +2822,8 @@ sub process {
 				    $dstat !~ /^\.$Ident\s*=/ &&
 				    $dstat =~ /$Operators/)
 				{
-					ERROR("Macros with complex values should be enclosed in parenthesis\n" . "$here\n$ctx\n");
+					ERROR("COMPLEX_MACRO",
+					      "Macros with complex values should be enclosed in parenthesis\n" . "$here\n$ctx\n");
 				}
 			}
 		}
@@ -2533,7 +2834,8 @@ sub process {
 #	ALIGN(...)
 #	VMLINUX_SYMBOL(...)
 		if ($realfile eq 'vmlinux.lds.h' && $line =~ /(?:(?:^|\s)$Ident\s*=|=\s*$Ident(?:\s|$))/) {
-			WARN("vmlinux.lds.h needs VMLINUX_SYMBOL() around C-visible symbols\n" . $herecurr);
+			WARN("MISSING_VMLINUX_SYMBOL",
+			     "vmlinux.lds.h needs VMLINUX_SYMBOL() around C-visible symbols\n" . $herecurr);
 		}
 
 # check for redundant bracing round if etc
@@ -2581,7 +2883,8 @@ sub process {
 					}
 				}
 				if ($seen && !$allowed) {
-					WARN("braces {} are not necessary for any arm of this statement\n" . $herectx);
+					WARN("BRACES",
+					     "braces {} are not necessary for any arm of this statement\n" . $herectx);
 				}
 			}
 		}
@@ -2635,33 +2938,38 @@ sub process {
 					$herectx .= raw_line($linenr, $n) . "\n";;
 				}
 
-				WARN("braces {} are not necessary for single statement blocks\n" . $herectx);
+				WARN("BRACES",
+				     "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*\#\s*include\s*\<$inc>@) {
-				ERROR("Don't use <$inc>: see Documentation/feature-removal-schedule.txt\n" . $herecurr);
+				ERROR("DEPRECATED_INCLUDE",
+				      "Don't use <$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);
+				ERROR("DEPRECATED_FUNCTION",
+				      "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);
+			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("if this code is redundant consider removing it\n" .
+			CHK("REDUNDANT_CODE",
+			    "if this code is redundant consider removing it\n" .
 				$herecurr);
 		}
 
@@ -2669,14 +2977,16 @@ sub process {
 		if ($prevline =~ /\bif\s*\(([^\)]*)\)/) {
 			my $expr = $1;
 			if ($line =~ /\bkfree\(\Q$expr\E\);/) {
-				WARN("kfree(NULL) is safe this check is probably not required\n" . $hereprev);
+				WARN("NEEDLESS_KFREE",
+				     "kfree(NULL) is safe this check is probably not required\n" . $hereprev);
 			}
 		}
 # check for needless usb_free_urb() checks
 		if ($prevline =~ /\bif\s*\(([^\)]*)\)/) {
 			my $expr = $1;
 			if ($line =~ /\busb_free_urb\(\Q$expr\E\);/) {
-				WARN("usb_free_urb(NULL) is safe this check is probably not required\n" . $hereprev);
+				WARN("NEEDLESS_USB_FREE_URB",
+				     "usb_free_urb(NULL) is safe this check is probably not required\n" . $hereprev);
 			}
 		}
 
@@ -2684,14 +2994,16 @@ sub process {
 		if ($line =~ /\budelay\s*\(\s*(\w+)\s*\)/) {
 			# ignore udelay's < 10, however
 			if (! (($1 =~ /(\d+)/) && ($1 < 10)) ) {
-				CHK("usleep_range is preferred over udelay; see Documentation/timers/timers-howto.txt\n" . $line);
+				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 < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt\n" . $line);
+				WARN("MSLEEP",
+				     "msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt\n" . $line);
 			}
 		}
 
@@ -2704,7 +3016,8 @@ sub process {
 
 # warn about spacing in #ifdefs
 		if ($line =~ /^.\s*\#\s*(ifdef|ifndef|elif)\s\s+/) {
-			ERROR("exactly one space required after that #$1\n" . $herecurr);
+			ERROR("SPACING",
+			      "exactly one space required after that #$1\n" . $herecurr);
 		}
 
 # check for spinlock_t definitions without a comment.
@@ -2712,50 +3025,65 @@ sub process {
 		    $line =~ /^.\s*(DEFINE_MUTEX)\s*\(/) {
 			my $which = $1;
 			if (!ctx_has_comment($first_line, $linenr)) {
-				CHK("$1 definition without comment\n" . $herecurr);
+				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 without comment\n" . $herecurr);
+				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("architecture specific defines should be avoided\n" .  $herecurr);
+			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 should be at the beginning of the declaration\n" . $herecurr)
+			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 keyword should sit between storage class and type\n" . $herecurr);
+			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("plain inline is preferred over $1\n" . $herecurr);
+			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("__packed is preferred over __attribute__((packed))\n" . $herecurr);
+			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 sizeof(&)
 		if ($line =~ /\bsizeof\s*\(\s*\&/) {
-			WARN("sizeof(& should be avoided\n" . $herecurr);
+			WARN("SIZEOF_ADDRESS",
+			     "sizeof(& should be avoided\n" . $herecurr);
 		}
 
 # check for line continuations in quoted strings with odd counts of "
 		if ($rawline =~ /\\$/ && $rawline =~ tr/"/"/ % 2) {
-			WARN("Avoid line continuations in quoted strings\n" . $herecurr);
+			WARN("LINE_CONTINUATIONS",
+			     "Avoid line continuations in quoted strings\n" . $herecurr);
 		}
 
 # check for new externs in .c files.
@@ -2772,17 +3100,20 @@ sub process {
 			if ($s =~ /^\s*;/ &&
 			    $function_name ne 'uninitialized_var')
 			{
-				WARN("externs should be avoided in .c files\n" .  $herecurr);
+				WARN("AVOID_EXTERNS",
+				     "externs should be avoided in .c files\n" .  $herecurr);
 			}
 
 			if ($paren_space =~ /\n/) {
-				WARN("arguments for function declarations should follow identifier\n" . $herecurr);
+				WARN("FUNCTION_ARGUMENTS",
+				     "arguments for function declarations should follow identifier\n" . $herecurr);
 			}
 
 		} elsif ($realfile =~ /\.c$/ && defined $stat &&
 		    $stat =~ /^.\s*extern\s+/)
 		{
-			WARN("externs should be avoided in .c files\n" .  $herecurr);
+			WARN("AVOID_EXTERNS",
+			     "externs should be avoided in .c files\n" .  $herecurr);
 		}
 
 # checks for new __setup's
@@ -2790,37 +3121,44 @@ sub process {
 			my $name = $1;
 
 			if (!grep(/$name/, @setup_docs)) {
-				CHK("__setup appears un-documented -- check Documentation/kernel-parameters.txt\n" . $herecurr);
+				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 cast may hide bugs, see http://c-faq.com/malloc/mallocnocast.html\n" . $herecurr);
+			WARN("UNNECESSARY_CASTS",
+			     "unnecessary cast may hide bugs, see http://c-faq.com/malloc/mallocnocast.html\n" . $herecurr);
 		}
 
 # check for multiple semicolons
 		if ($line =~ /;\s*;\s*$/) {
-		    WARN("Statements terminations use 1 semicolon\n" . $herecurr);
+		    WARN("ONE_SEMICOLON",
+			 "Statements terminations use 1 semicolon\n" . $herecurr);
 		}
 
 # check for gcc specific __FUNCTION__
 		if ($line =~ /__FUNCTION__/) {
-			WARN("__func__ should be used instead of gcc specific __FUNCTION__\n"  . $herecurr);
+			WARN("USE_FUNC",
+			     "__func__ should be used instead of gcc specific __FUNCTION__\n"  . $herecurr);
 		}
 
 # check for semaphores initialized locked
 		if ($line =~ /^.\s*sema_init.+,\W?0\W?\)/) {
-			WARN("consider using a completion\n" . $herecurr);
+			WARN("CONSIDER_COMPLETION",
+			     "consider using a completion\n" . $herecurr);
 
 		}
 # recommend kstrto* over simple_strto*
 		if ($line =~ /\bsimple_(strto.*?)\s*\(/) {
-			WARN("consider using kstrto* in preference to simple_$1\n" . $herecurr);
+			WARN("CONSIDER_KSTRTO",
+			     "consider using kstrto* in preference to simple_$1\n" . $herecurr);
 		}
 # check for __initcall(), use device_initcall() explicitly please
 		if ($line =~ /^.\s*__initcall\s*\(/) {
-			WARN("please use device_initcall() instead of __initcall()\n" . $herecurr);
+			WARN("USE_DEVICE_INITCALL",
+			     "please use device_initcall() instead of __initcall()\n" . $herecurr);
 		}
 # check for various ops structs, ensure they are const.
 		my $struct_ops = qr{acpi_dock_ops|
@@ -2862,7 +3200,8 @@ sub process {
 				wd_ops}x;
 		if ($line !~ /\bconst\b/ &&
 		    $line =~ /\bstruct\s+($struct_ops)\b/) {
-			WARN("struct $1 should normally be const\n" .
+			WARN("CONST_STRUCT",
+			     "struct $1 should normally be const\n" .
 				$herecurr);
 		}
 
@@ -2875,7 +3214,8 @@ sub process {
 		    $line !~ /\[[^\]]*\.\.\.[^\]]*NR_CPUS[^\]]*\]/ &&
 		    $line !~ /\[[^\]]*NR_CPUS[^\]]*\.\.\.[^\]]*\]/)
 		{
-			WARN("usage of NR_CPUS is often wrong - consider using cpu_possible(), num_possible_cpus(), for_each_possible_cpu(), etc\n" . $herecurr);
+			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
@@ -2884,7 +3224,8 @@ sub process {
 			$string = substr($rawline, $-[1], $+[1] - $-[1]);
 			$string =~ s/%%/__/g;
 			if ($string =~ /(?<!%)%L[udi]/) {
-				WARN("\%Ld/%Lu are not-standard C, use %lld/%llu\n" . $herecurr);
+				WARN("PRINTF_L",
+				     "\%Ld/%Lu are not-standard C, use %lld/%llu\n" . $herecurr);
 				last;
 			}
 		}
@@ -2892,9 +3233,11 @@ sub process {
 # whine mightly about in_atomic
 		if ($line =~ /\bin_atomic\s*\(/) {
 			if ($realfile =~ m@^drivers/@) {
-				ERROR("do not use in_atomic in drivers\n" . $herecurr);
+				ERROR("IN_ATOMIC",
+				      "do not use in_atomic in drivers\n" . $herecurr);
 			} elsif ($realfile !~ m@^kernel/@) {
-				WARN("use of in_atomic() is incorrect outside core kernel code\n" . $herecurr);
+				WARN("IN_ATOMIC",
+				     "use of in_atomic() is incorrect outside core kernel code\n" . $herecurr);
 			}
 		}
 
@@ -2904,18 +3247,21 @@ sub process {
 			if ($realfile !~ m@^kernel/lockdep@ &&
 			    $realfile !~ m@^include/linux/lockdep@ &&
 			    $realfile !~ m@^drivers/base/core@) {
-				ERROR("lockdep_no_validate class is reserved for device->mutex.\n" . $herecurr);
+				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("Exporting world writable files is usually an error. Consider more restrictive permissions.\n" . $herecurr);
+			WARN("EXPORTED_WORLD_WRITABLE",
+			     "Exporting world writable files is usually an error. Consider more restrictive permissions.\n" . $herecurr);
 		}
 
 		# Check for memset with swapped arguments
 		if ($line =~ /memset.*\,(\ |)(0x|)0(\ |0|)\);/) {
-			ERROR("memset size is 3rd argument, not the second.\n" . $herecurr);
+			ERROR("MEMSET",
+			      "memset size is 3rd argument, not the second.\n" . $herecurr);
 		}
 	}
 
@@ -2938,10 +3284,12 @@ sub process {
 	}
 
 	if (!$is_patch) {
-		ERROR("Does not appear to be a unified-diff format patch\n");
+		ERROR("NOT_UNIFIED_DIFF",
+		      "Does not appear to be a unified-diff format patch\n");
 	}
 	if ($is_patch && $chk_signoff && $signoff == 0) {
-		ERROR("Missing Signed-off-by: line(s)\n");
+		ERROR("MISSING_SIGN_OFF",
+		      "Missing Signed-off-by: line(s)\n");
 	}
 
 	print report_dump();
@@ -2963,13 +3311,25 @@ sub process {
 		}
 	}
 
+	if (keys %ignore_type) {
+	    print "NOTE: Ignored message types:";
+	    foreach my $ignore (sort keys %ignore_type) {
+		print " $ignore";
+	    }
+	    print "\n";
+	    print "\n" if ($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";
+		print << "EOM";
+$vname has style problems, please review.
+
+If any of these errors are false positives, please report
+them to the maintainer, see CHECKPATCH in MAINTAINERS.
+EOM
 	}
 
 	return $clean;
diff --git a/scripts/get_maintainer.pl b/scripts/get_maintainer.pl
index d29a8d75cb22..eb2f1e64edf7 100755
--- a/scripts/get_maintainer.pl
+++ b/scripts/get_maintainer.pl
@@ -328,7 +328,8 @@ sub read_mailmap {
 	# name1 <mail1> <mail2>
 	# name1 <mail1> name2 <mail2>
 	# (see man git-shortlog)
-	if (/^(.+)<(.+)>$/) {
+
+	if (/^([^<]+)<([^>]+)>$/) {
 	    my $real_name = $1;
 	    my $address = $2;
 
@@ -336,13 +337,13 @@ sub read_mailmap {
 	    ($real_name, $address) = parse_email("$real_name <$address>");
 	    $mailmap->{names}->{$address} = $real_name;
 
-	} elsif (/^<([^\s]+)>\s*<([^\s]+)>$/) {
+	} elsif (/^<([^>]+)>\s*<([^>]+)>$/) {
 	    my $real_address = $1;
 	    my $wrong_address = $2;
 
 	    $mailmap->{addresses}->{$wrong_address} = $real_address;
 
-	} elsif (/^(.+)<([^\s]+)>\s*<([^\s]+)>$/) {
+	} elsif (/^(.+)<([^>]+)>\s*<([^>]+)>$/) {
 	    my $real_name = $1;
 	    my $real_address = $2;
 	    my $wrong_address = $3;
@@ -353,7 +354,7 @@ sub read_mailmap {
 	    $mailmap->{names}->{$wrong_address} = $real_name;
 	    $mailmap->{addresses}->{$wrong_address} = $real_address;
 
-	} elsif (/^(.+)<([^\s]+)>\s*([^\s].*)<([^\s]+)>$/) {
+	} elsif (/^(.+)<([^>]+)>\s*(.+)\s*<([^>]+)>$/) {
 	    my $real_name = $1;
 	    my $real_address = $2;
 	    my $wrong_name = $3;