#!/usr/bin/perl -w
-# (c) 2001, Dave Jones. <davej@codemonkey.org.uk> (the file handling bit)
+# (c) 2001, Dave Jones. <davej@redhat.com> (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
my $P = $0;
$P =~ s@.*/@@g;
-my $V = '0.15';
+my $V = '0.24';
use Getopt::Long qw(:config no_auto_abbrev);
my $tree = 1;
my $chk_signoff = 1;
my $chk_patch = 1;
-my $tst_type = 0;
+my $tst_only;
my $emacs = 0;
my $terse = 0;
my $file = 0;
'summary-file!' => \$summary_file,
'debug=s' => \%debug,
- 'test-type!' => \$tst_type,
+ 'test-only=s' => \$tst_only,
) or exit;
my $exit = 0;
my $dbg_values = 0;
my $dbg_possible = 0;
+my $dbg_type = 0;
+my $dbg_attr = 0;
for my $key (keys %debug) {
eval "\${dbg_$key} = '$debug{$key}';"
}
const|
__read_mostly|
__kprobes|
- __(?:mem|cpu|dev|)(?:initdata|init)
+ __(?:mem|cpu|dev|)(?:initdata|init)|
+ ____cacheline_aligned|
+ ____cacheline_aligned_in_smp|
+ ____cacheline_internodealigned_in_smp
}x;
+our $Modifier;
our $Inline = qr{inline|__always_inline|noinline};
our $Member = qr{->$Ident|\.$Ident|\[[^]]*\]};
our $Lval = qr{$Ident(?:$Member)*};
our $Type;
our $Declare;
+our $UTF8 = qr {
+ [\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;
+
+our $typeTypedefs = qr{(?x:
+ (?:__)?(?:u|s|be|le)(?:\d|\d\d)|
+ atomic_t
+)};
+
our @typeList = (
qr{void},
- qr{char},
- qr{short},
- qr{int},
- qr{long},
+ qr{(?:unsigned\s+)?char},
+ qr{(?:unsigned\s+)?short},
+ qr{(?:unsigned\s+)?int},
+ qr{(?:unsigned\s+)?long},
+ qr{(?:unsigned\s+)?long\s+int},
+ qr{(?:unsigned\s+)?long\s+long},
+ qr{(?:unsigned\s+)?long\s+long\s+int},
qr{unsigned},
qr{float},
qr{double},
qr{bool},
- qr{long\s+int},
- qr{long\s+long},
- qr{long\s+long\s+int},
- qr{(?:__)?(?:u|s|be|le)(?:8|16|32|64)},
qr{struct\s+$Ident},
qr{union\s+$Ident},
qr{enum\s+$Ident},
qr{${Ident}_handler},
qr{${Ident}_handler_fn},
);
+our @modifierList = (
+ qr{fastcall},
+);
sub build_types {
- my $all = "(?: \n" . join("|\n ", @typeList) . "\n)";
+ my $mods = "(?x: \n" . join("|\n ", @modifierList) . "\n)";
+ my $all = "(?x: \n" . join("|\n ", @typeList) . "\n)";
+ $Modifier = qr{(?:$Attribute|$Sparse|$mods)};
$NonptrType = qr{
- \b
- (?:const\s+)?
- (?:unsigned\s+)?
+ (?:$Modifier\s+|const\s+)*
(?:
- $all|
- (?:typeof|__typeof__)\s*\(\s*\**\s*$Ident\s*\)
+ (?:typeof|__typeof__)\s*\(\s*\**\s*$Ident\s*\)|
+ (?:$typeTypedefs\b)|
+ (?:${all}\b)
)
- (?:\s+$Sparse|\s+const)*
- \b
+ (?:\s+$Modifier|\s+const)*
}x;
$Type = qr{
- \b$NonptrType\b
+ $NonptrType
(?:\s*\*+\s*const|\s*\*+|(?:\s*\[\s*\])+)?
- (?:\s+$Inline|\s+$Sparse|\s+$Attribute)*
+ (?:\s+$Inline|\s+$Modifier)*
}x;
$Declare = qr{(?:$Storage\s+)?$Type};
}
return $res;
}
sub copy_spacing {
- my ($str) = @_;
-
- my $res = '';
- for my $c (split(//, $str)) {
- if ($c eq "\t") {
- $res .= $c;
- } else {
- $res .= ' ';
- }
- }
-
+ (my $res = shift) =~ tr/\t/ /c;
return $res;
}
return (length($line), length($white));
}
+my $sanitise_quote = '';
+
+sub sanitise_line_reset {
+ my ($in_comment) = @_;
+
+ if ($in_comment) {
+ $sanitise_quote = '*/';
+ } else {
+ $sanitise_quote = '';
+ }
+}
sub sanitise_line {
my ($line) = @_;
my $res = '';
my $l = '';
- my $quote = '';
my $qlen = 0;
+ my $off = 0;
+ my $c;
- 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 = '';
- }
+ # Always copy over the diff marker.
+ $res = substr($line, 0, 1);
+
+ for ($off = 1; $off < length($line); $off++) {
+ $c = substr($line, $off, 1);
+
+ # Comments we are wacking completly including the begin
+ # and end, all to $;.
+ if ($sanitise_quote eq '' && substr($line, $off, 2) eq '/*') {
+ $sanitise_quote = '*/';
+
+ substr($res, $off, 2, "$;$;");
+ $off++;
+ next;
}
- if ($quote eq "'" && $qlen > 1) {
- $quote = '';
+ if ($sanitise_quote eq '*/' && substr($line, $off, 2) eq '*/') {
+ $sanitise_quote = '';
+ substr($res, $off, 2, "$;$;");
+ $off++;
+ next;
}
- if ($quote && $c ne "\t") {
- $res .= "X";
- $qlen++;
- } else {
- $res .= $c;
+
+ # A \ in a string means ignore the next character.
+ if (($sanitise_quote eq "'" || $sanitise_quote eq '"') &&
+ $c eq "\\") {
+ substr($res, $off, 2, 'XX');
+ $off++;
+ next;
}
+ # Regular quotes.
+ if ($c eq "'" || $c eq '"') {
+ if ($sanitise_quote eq '') {
+ $sanitise_quote = $c;
- $l = $c;
- }
+ substr($res, $off, 1, $c);
+ next;
+ } elsif ($sanitise_quote eq $c) {
+ $sanitise_quote = '';
+ }
+ }
- # Clear out the comments.
- while ($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] - $-[1]);
+ #print "SQ:$sanitise_quote\n";
+ if ($off != 0 && $sanitise_quote eq '*/' && $c ne "\t") {
+ substr($res, $off, 1, $;);
+ } elsif ($off != 0 && $sanitise_quote && $c ne "\t") {
+ substr($res, $off, 1, 'X');
+ } else {
+ substr($res, $off, 1, $c);
+ }
}
# The pathname on a #include may be surrounded by '<' and '>'.
- if ($res =~ /^.#\s*include\s+\<(.*)\>/) {
+ if ($res =~ /^.\s*\#\s*include\s+\<(.*)\>/) {
my $clean = 'X' x length($1);
$res =~ s@\<.*\>@<$clean>@;
# The whole of a #error is a string.
- } elsif ($res =~ /^.#\s*(?:error|warning)\s+(.*)\b/) {
+ } elsif ($res =~ /^.\s*\#\s*(?:error|warning)\s+(.*)\b/) {
my $clean = 'X' x length($1);
- $res =~ s@(#\s*(?:error|warning)\s+).*@$1$clean@;
+ $res =~ s@(\#\s*(?:error|warning)\s+).*@$1$clean@;
}
return $res;
my $blk = '';
my $soff = $off;
my $coff = $off - 1;
+ my $coff_set = 0;
my $loff = 0;
my $remainder;
while (1) {
- #warn "CSB: blk<$blk>\n";
+ #warn "CSB: blk<$blk> remain<$remain>\n";
# If we are about to drop off the end, pull in more
# context.
if ($off >= $len) {
for (; $remain > 0; $line++) {
+ last if (!defined $lines[$line]);
next if ($lines[$line] =~ /^-/);
$remain--;
$loff = $len;
$c = substr($blk, $off, 1);
$remainder = substr($blk, $off);
- #warn "CSB: c<$c> type<$type> level<$level>\n";
+ #warn "CSB: c<$c> type<$type> level<$level> remainder<$remainder> coff_set<$coff_set>\n";
# Statement ends at the ';' or a close '}' at the
# outermost level.
if ($level == 0 && $c eq ';') {
}
# An else is really a conditional as long as its not else if
- if ($level == 0 && (!defined($p) || $p =~ /(?:\s|\})/) &&
- $remainder =~ /(else)(?:\s|{)/ &&
- $remainder !~ /else\s+if\b/) {
- $coff = $off + length($1);
+ if ($level == 0 && $coff_set == 0 &&
+ (!defined($p) || $p =~ /(?:\s|\}|\+)/) &&
+ $remainder =~ /^(else)(?:\s|{)/ &&
+ $remainder !~ /^else\s+if\b/) {
+ $coff = $off + length($1) - 1;
+ $coff_set = 1;
+ #warn "CSB: mark coff<$coff> soff<$soff> 1<$1>\n";
+ #warn "[" . substr($blk, $soff, $coff - $soff + 1) . "]\n";
}
if (($type eq '' || $type eq '(') && $c eq '(') {
if ($level == 0 && $coff < $soff) {
$coff = $off;
+ $coff_set = 1;
+ #warn "CSB: mark coff<$coff>\n";
}
}
if (($type eq '' || $type eq '{') && $c eq '{') {
}
$off++;
}
+ # We are truly at the end, so shuffle to the next line.
if ($off == $len) {
+ $loff = $len + 1;
$line++;
$remain--;
}
#warn "STATEMENT<$statement>\n";
#warn "CONDITION<$condition>\n";
- #print "off<$off> loff<$loff>\n";
+ #print "coff<$coff> soff<$off> loff<$loff>\n";
return ($statement, $condition,
$line, $remain + 1, $off - $loff + 1, $level);
# Grab the first conditional/block pair.
($statement, $condition, $linenr, $remain, $off, $level) =
ctx_statement_block($linenr, $remain, $off);
- #print "F: c<$condition> s<$statement>\n";
+ #print "F: c<$condition> s<$statement> remain<$remain>\n";
push(@chunks, [ $condition, $statement ]);
if (!($remain > 0 && $condition =~ /^\s*(?:\n[+-])?\s*(?:if|else|do)\b/s)) {
return ($level, $linenr, @chunks);
($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 && $condition =~ /^\s*(?:\n[+-])?\s*(?:else|do)\b/s));
+ last if (!($remain > 0 && $condition =~ /^(?:\s*\n[+-])*\s*(?:else|do)\b/s));
#print "C: push\n";
push(@chunks, [ $condition, $statement ]);
}
my ($first_line, $end_line) = @_;
# Catch a comment on the end of the line itself.
- my ($current_comment) = ($rawlines[$end_line - 1] =~ m@.*(/\*.*\*/)\s*$@);
+ my ($current_comment) = ($rawlines[$end_line - 1] =~ m@.*(/\*.*\*/)\s*(?:\\\s*)?$@);
return $current_comment if (defined $current_comment);
# Look through the context and try and figure out if there is a
return ($cmt ne '');
}
+sub raw_line {
+ my ($linenr, $cnt) = @_;
+
+ my $offset = $linenr - 1;
+ $cnt++;
+
+ my $line;
+ while ($cnt) {
+ $line = $rawlines[$offset++];
+ next if (defined($line) && $line =~ /^-/);
+ $cnt--;
+ }
+
+ return $line;
+}
+
sub cat_vet {
my ($vet) = @_;
my ($res, $coded);
my $av_preprocessor = 0;
my $av_pending;
my @av_paren_type;
+my $av_pend_colon;
sub annotate_reset {
$av_preprocessor = 0;
$av_pending = '_';
@av_paren_type = ('E');
+ $av_pend_colon = 'O';
}
sub annotate_values {
my ($stream, $type) = @_;
my $res;
+ my $var = '_' x length($stream);
my $cur = $stream;
print "$stream\n" if ($dbg_values > 1);
while (length($cur)) {
+ @av_paren_type = ('E') if ($#av_paren_type < 0);
print " <" . join('', @av_paren_type) .
- "> <$type> " if ($dbg_values > 1);
+ "> <$type> <$av_pending>" if ($dbg_values > 1);
if ($cur =~ /^(\s+)/o) {
print "WS($1)\n" if ($dbg_values > 1);
if ($1 =~ /\n/ && $av_preprocessor) {
$av_preprocessor = 0;
}
- } elsif ($cur =~ /^($Type)/) {
+ } elsif ($cur =~ /^($Type)\s*(?:$Ident|,|\)|\()/) {
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);
+ } elsif ($cur =~ /^($Modifier)\s*/) {
+ print "MODIFIER($1)\n" if ($dbg_values > 1);
+ $type = 'T';
+
+ } elsif ($cur =~ /^(\#\s*define\s*$Ident)(\(?)/o) {
+ print "DEFINE($1,$2)\n" if ($dbg_values > 1);
$av_preprocessor = 1;
- $av_pending = 'N';
+ push(@av_paren_type, $type);
+ if ($2 ne '') {
+ $av_pending = 'N';
+ }
+ $type = 'E';
- } elsif ($cur =~ /^(#\s*(?:ifdef|ifndef|if))/o) {
+ } elsif ($cur =~ /^(\#\s*(?:undef\s*$Ident|include\b))/o) {
+ print "UNDEF($1)\n" if ($dbg_values > 1);
+ $av_preprocessor = 1;
+ push(@av_paren_type, $type);
+
+ } elsif ($cur =~ /^(\#\s*(?:ifdef|ifndef|if))/o) {
print "PRE_START($1)\n" if ($dbg_values > 1);
$av_preprocessor = 1;
push(@av_paren_type, $type);
push(@av_paren_type, $type);
- $type = 'N';
+ $type = 'E';
- } elsif ($cur =~ /^(#\s*(?:else|elif))/o) {
+ } 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';
+ $type = 'E';
- } elsif ($cur =~ /^(#\s*(?:endif))/o) {
+ } elsif ($cur =~ /^(\#\s*(?:endif))/o) {
print "PRE_END($1)\n" if ($dbg_values > 1);
$av_preprocessor = 1;
# one does, and continue as if the #endif was not here.
pop(@av_paren_type);
push(@av_paren_type, $type);
- $type = 'N';
+ $type = 'E';
} elsif ($cur =~ /^(\\\n)/o) {
print "PRECONT($1)\n" if ($dbg_values > 1);
+ } elsif ($cur =~ /^(__attribute__)\s*\(?/o) {
+ print "ATTR($1)\n" if ($dbg_values > 1);
+ $av_pending = $type;
+ $type = 'N';
+
} elsif ($cur =~ /^(sizeof)\s*(\()?/o) {
print "SIZEOF($1)\n" if ($dbg_values > 1);
if (defined $2) {
}
$type = 'N';
- } elsif ($cur =~ /^(if|while|typeof|__typeof__|for)\b/o) {
+ } elsif ($cur =~ /^(if|while|for)\b/o) {
print "COND($1)\n" if ($dbg_values > 1);
- $av_pending = 'N';
+ $av_pending = 'E';
$type = 'N';
- } elsif ($cur =~/^(return|case|else)/o) {
+ } elsif ($cur =~/^(case)/o) {
+ print "CASE($1)\n" if ($dbg_values > 1);
+ $av_pend_colon = 'C';
+ $type = 'N';
+
+ } elsif ($cur =~/^(return|else|goto|typeof|__typeof__)\b/o) {
print "KEYWORD($1)\n" if ($dbg_values > 1);
$type = 'N';
print "PAREN('$1')\n" if ($dbg_values > 1);
}
- } elsif ($cur =~ /^($Ident)\(/o) {
+ } elsif ($cur =~ /^($Ident)\s*\(/o) {
print "FUNC($1)\n" if ($dbg_values > 1);
+ $type = 'V';
$av_pending = 'V';
+ } elsif ($cur =~ /^($Ident\s*):/) {
+ if ($type eq 'E') {
+ $av_pend_colon = 'L';
+ } elsif ($type eq 'T') {
+ $av_pend_colon = 'B';
+ }
+ print "IDENT_COLON($1,$type>$av_pend_colon)\n" if ($dbg_values > 1);
+ $type = 'V';
+
} elsif ($cur =~ /^($Ident|$Constant)/o) {
print "IDENT($1)\n" if ($dbg_values > 1);
$type = 'V';
} elsif ($cur =~/^(;|{|})/) {
print "END($1)\n" if ($dbg_values > 1);
$type = 'E';
+ $av_pend_colon = 'O';
+
+ } elsif ($cur =~ /^(\?)/o) {
+ print "QUESTION($1)\n" if ($dbg_values > 1);
+ $type = 'N';
+
+ } elsif ($cur =~ /^(:)/o) {
+ print "COLON($1,$av_pend_colon)\n" if ($dbg_values > 1);
+
+ substr($var, length($res), 1, $av_pend_colon);
+ if ($av_pend_colon eq 'C' || $av_pend_colon eq 'L') {
+ $type = 'E';
+ } else {
+ $type = 'N';
+ }
+ $av_pend_colon = 'O';
- } elsif ($cur =~ /^(;|\?|:|\[)/o) {
+ } elsif ($cur =~ /^(;|\[)/o) {
print "CLOSE($1)\n" if ($dbg_values > 1);
$type = 'N';
+ } elsif ($cur =~ /^(-(?![->])|\+(?!\+)|\*|\&\&|\&)/o) {
+ my $variant;
+
+ print "OPV($1)\n" if ($dbg_values > 1);
+ if ($type eq 'V') {
+ $variant = 'B';
+ } else {
+ $variant = 'U';
+ }
+
+ substr($var, length($res), 1, $variant);
+ $type = 'N';
+
} elsif ($cur =~ /^($Operators)/o) {
print "OP($1)\n" if ($dbg_values > 1);
if ($1 ne '++' && $1 ne '--') {
}
}
- return $res;
+ return ($res, $var);
}
sub possible {
my ($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, $possible);
+ print "CHECK<$possible> ($line)\n" if ($dbg_possible > 2);
+ if ($possible !~ /(?:
+ ^(?:
+ $Modifier|
+ $Storage|
+ $Type|
+ DEFINE_\S+|
+ goto|
+ return|
+ case|
+ else|
+ asm|__asm__|
+ do
+ )$|
+ ^(?:typedef|struct|enum)\b
+ )/x) {
+ # Check for modifiers.
+ $possible =~ s/\s*$Storage\s*//g;
+ $possible =~ s/\s*$Sparse\s*//g;
+ if ($possible =~ /^\s*$/) {
+
+ } elsif ($possible =~ /\s/) {
+ $possible =~ s/\s*$Type\s*//g;
+ for my $modifier (split(' ', $possible)) {
+ warn "MODIFIER: $modifier ($possible) ($line)\n" if ($dbg_possible);
+ push(@modifierList, $modifier);
+ }
+
+ } else {
+ warn "POSSIBLE: $possible ($line)\n" if ($dbg_possible);
+ push(@typeList, $possible);
+ }
build_types();
+ } else {
+ warn "NOTPOSS: $possible ($line)\n" if ($dbg_possible > 1);
}
}
my $prefix = '';
sub report {
+ if (defined $tst_only && $_[0] !~ /\Q$tst_only\E/) {
+ return 0;
+ }
my $line = $prefix . $_[0];
$line = (split('\n', $line))[0] . "\n" if ($terse);
push(our @report, $line);
+
+ return 1;
}
sub report_dump {
our @report;
}
sub ERROR {
- report("ERROR: $_[0]\n");
- our $clean = 0;
- our $cnt_error++;
+ if (report("ERROR: $_[0]\n")) {
+ our $clean = 0;
+ our $cnt_error++;
+ }
}
sub WARN {
- report("WARNING: $_[0]\n");
- our $clean = 0;
- our $cnt_warn++;
+ if (report("WARNING: $_[0]\n")) {
+ our $clean = 0;
+ our $cnt_warn++;
+ }
}
sub CHK {
- if ($check) {
- report("CHECK: $_[0]\n");
+ if ($check && report("CHECK: $_[0]\n")) {
our $clean = 0;
our $cnt_chk++;
}
}
+sub check_absolute_file {
+ my ($absolute, $herecurr) = @_;
+ my $file = $absolute;
+
+ ##print "absolute<$absolute>\n";
+
+ # See if any suffix of this path is a path within the tree.
+ while ($file =~ s@^[^/]*/@@) {
+ if (-f "$root/$file") {
+ ##print "file<$file>\n";
+ last;
+ }
+ }
+ if (! -f _) {
+ return 0;
+ }
+
+ # It is, so see if the prefix is acceptable.
+ my $prefix = $absolute;
+ substr($prefix, -length($file)) = '';
+
+ ##print "prefix<$prefix>\n";
+ if ($prefix ne ".../") {
+ WARN("use relative pathname instead of absolute in changelog text\n" . $herecurr);
+ }
+}
+
sub process {
my $filename = shift;
my $prev_values = 'E';
# suppression flags
- my $suppress_ifbraces = 0;
+ my %suppress_ifbraces;
+ my %suppress_whiletrailers;
# Pre-scan the patch sanitizing the lines.
# Pre-scan the patch looking for any __setup documentation.
#
my @setup_docs = ();
my $setup_docs = 0;
+
+ sanitise_line_reset();
my $line;
foreach my $rawline (@rawlines) {
- # Standardise the strings and chars within the input to
- # simplify matching.
- $line = sanitise_line($rawline);
- push(@lines, $line);
-
- ##print "==>$rawline\n";
- ##print "-->$line\n";
+ $linenr++;
+ $line = $rawline;
- if ($line=~/^\+\+\+\s+(\S+)/) {
+ if ($rawline=~/^\+\+\+\s+(\S+)/) {
$setup_docs = 0;
if ($1 =~ m@Documentation/kernel-parameters.txt$@) {
$setup_docs = 1;
}
- next;
+ #next;
}
+ if ($rawline=~/^\@\@ -\d+(?:,\d+)? \+(\d+)(,(\d+))? \@\@/) {
+ $realline=$1-1;
+ if (defined $2) {
+ $realcnt=$3+1;
+ } else {
+ $realcnt=1+1;
+ }
+ $in_comment = 0;
+
+ # Guestimate if this is a continuing comment. Run
+ # the context looking for a comment "edge". If this
+ # edge is a close comment then we must be in a comment
+ # at context start.
+ my $edge;
+ my $cnt = $realcnt;
+ for (my $ln = $linenr + 1; $cnt > 0; $ln++) {
+ next if (defined $rawlines[$ln - 1] &&
+ $rawlines[$ln - 1] =~ /^-/);
+ $cnt--;
+ #print "RAW<$rawlines[$ln - 1]>\n";
+ ($edge) = (defined $rawlines[$ln - 1] &&
+ $rawlines[$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 (!defined $edge &&
+ $rawlines[$linenr] =~ m@^.\s* \*(?:\s|$)@)
+ {
+ $in_comment = 1;
+ }
+
+ ##print "COMMENT:$in_comment edge<$edge> $rawline\n";
+ sanitise_line_reset($in_comment);
+
+ } elsif ($realcnt && $rawline =~ /^(?:\+| |$)/) {
+ # Standardise the strings and chars within the input to
+ # simplify matching -- only bother with positive lines.
+ $line = sanitise_line($rawline);
+ }
+ push(@lines, $line);
+
+ if ($realcnt > 1) {
+ $realcnt-- if ($line =~ /^(?:\+| |$)/);
+ } else {
+ $realcnt = 0;
+ }
+
+ #print "==>$rawline\n";
+ #print "-->$line\n";
if ($setup_docs && $line =~ /^\+/) {
push(@setup_docs, $line);
$prefix = '';
+ $realcnt = 0;
+ $linenr = 0;
foreach my $line (@lines) {
$linenr++;
my $rawline = $rawlines[$linenr - 1];
+ my $hunk_line = ($realcnt != 0);
-#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;
annotate_reset();
$prev_values = 'E';
- $suppress_ifbraces = $linenr - 1;
+ %suppress_ifbraces = ();
+ %suppress_whiletrailers = ();
next;
- }
# track the line number as we move through the hunk, note that
# new versions of GNU diff omit the leading space on completely
# blank context lines so we need to count that too.
- if ($line =~ /^( |\+|$)/) {
+ } elsif ($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);
($previndent, $stashindent) = ($stashindent, $indent);
($prevrawline, $stashrawline) = ($stashrawline, $rawline);
- #warn "ic<$in_comment> ce<$comment_edge> line<$line>\n";
+ #warn "line<$line>\n";
} elsif ($realcnt == 1) {
$realcnt--;
}
#make up the handle for any error we report on this line
+ $prefix = "$filename:$realline: " if ($emacs && $file);
+ $prefix = "$filename:$linenr: " if ($emacs && !$file);
+
$here = "#$linenr: " if (!$file);
$here = "#$realline: " if ($file);
+
+ # extract the filename as it passes
+ if ($line=~/^\+\+\+\s+(\S+)/) {
+ $realfile = $1;
+ $realfile =~ s@^[^/]*/@@;
+
+ if ($realfile =~ m@^include/asm/@) {
+ ERROR("do not modify files in include/asm, change architecture specific files in include/asm-<architecture>\n" . "$here$rawline\n");
+ }
+ next;
+ }
+
$here .= "FILE: $realfile:$realline:" if ($realcnt != 0);
my $hereline = "$here\n$rawline\n";
my $herecurr = "$here\n$rawline\n";
my $hereprev = "$here\n$prevrawline\n$rawline\n";
- $prefix = "$filename:$realline: " if ($emacs && $file);
- $prefix = "$filename:$linenr: " if ($emacs && !$file);
$cnt_lines++ if ($realcnt != 0);
#check the patch for a signoff:
$herecurr);
}
if ($line =~ /^\s*signed-off-by:\S/i) {
- WARN("need space after Signed-off-by:\n" .
+ WARN("space required after Signed-off-by:\n" .
$herecurr);
}
}
$herecurr) if (!$emitted_corrupt++);
}
+# Check for absolute kernel paths.
+ if ($tree) {
+ while ($line =~ m{(?:^|\s)(/\S*)}g) {
+ my $file = $1;
+
+ if ($file =~ m{^(.*?)(?::\d+)+:?$} &&
+ check_absolute_file($1, $herecurr)) {
+ #
+ } else {
+ check_absolute_file($file, $herecurr);
+ }
+ }
+ }
+
# UTF-8 regex found at http://www.w3.org/International/questions/qa-forms-utf-8.en.php
if (($realfile =~ /^$/ || $line =~ /^\+/) &&
- !($rawline =~ m/^(
- [\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;}
+ $rawline !~ m/^$UTF8*$/) {
+ my ($utf8_prefix) = ($rawline =~ /^($UTF8*)/);
-# check we are in a valid source file if not then ignore this hunk
- next if ($realfile !~ /\.(h|c|s|S|pl|sh)$/);
+ my $blank = copy_spacing($rawline);
+ 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" . $hereptr);
+ }
+
+# ignore non-hunk lines and lines being removed
+ next if (!$hunk_line || $line =~ /^-/);
#trailing whitespace
if ($line =~ /^\+.*\015/) {
my $herevet = "$here\n" . cat_vet($rawline) . "\n";
ERROR("trailing whitespace\n" . $herevet);
}
+
+# check we are in a valid source file if not then ignore this hunk
+ next if ($realfile !~ /\.(h|c|s|S|pl|sh)$/);
+
#80 column limit
- if ($line =~ /^\+/ && !($prevrawline=~/\/\*\*/) && $length > 80) {
+ if ($line =~ /^\+/ && $prevrawline !~ /\/\*\*/ &&
+ $rawline !~ /^.\s*\*\s*\@$Ident\s/ &&
+ $line !~ /^\+\s*printk\s*\(\s*(?:KERN_\S+\s*)?"[X\t]*"\s*(?:,|\)\s*;)\s*$/ &&
+ $length > 80)
+ {
WARN("line over 80 characters\n" . $herecurr);
}
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]$/);
+# check we are in a valid source file C or perl if not then ignore this hunk
+ next if ($realfile !~ /\.(h|c|pl)$/);
# at the beginning of a line any tabs must come first and anything
# more than 8 must use tabs.
if ($rawline =~ /^\+\s* \t\s*\S/ ||
$rawline =~ /^\+\s* \s*/) {
my $herevet = "$here\n" . cat_vet($rawline) . "\n";
- ERROR("use tabs not spaces\n" . $herevet);
+ ERROR("code indent should use tabs where possible\n" . $herevet);
}
+# check we are in a valid C source file if not then ignore this hunk
+ next if ($realfile !~ /\.(h|c)$/);
+
# check for RCS/CVS revision markers
if ($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;
- $s =~ s/{.*$//;
+ my ($stat, $cond, $line_nr_next, $remain_next, $off_next);
+ if ($realcnt && $line =~ /.\s*\S/) {
+ ($stat, $cond, $line_nr_next, $remain_next, $off_next) =
+ ctx_statement_block($linenr, $realcnt, 0);
+ $stat =~ s/\n./\n /g;
+ $cond =~ s/\n./\n /g;
+
+ my $s = $stat;
+ $s =~ s/{.*$//s;
# Ignore goto labels.
- if ($s =~ /$Ident:\*$/) {
+ if ($s =~ /$Ident:\*$/s) {
# 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, $s);
+ } elsif ($s =~ /^.\s*$Ident\s*\(/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, $s);
+ } elsif ($prev_values eq 'E' && $s =~ /^.\s*(?:$Storage\s+)?(?:$Inline\s+)?(?:const\s+)?((?:\s*$Ident)+?)\b(?:\s+$Sparse)?\s*\**\s*(?:$Ident|\(\*[^\)]*\))(?:\s*$Modifier)?\s*(?:;|=|,|\()/s) {
+ my $type = $1;
+ $type =~ s/\s+/ /g;
+ possible($type, "A:" . $s);
+
+ # definitions in global scope can only start with types
+ } elsif ($s =~ /^.(?:$Storage\s+)?(?:$Inline\s+)?(?:const\s+)?($Ident)\b\s*(?!:)/s) {
+ possible($1, "B:" . $s);
}
# any (foo ... *) is a pointer cast, and foo is a type
- while ($s =~ /\(($Ident)(?:\s+$Sparse)*\s*\*+\s*\)/g) {
- possible($1, $s);
+ while ($s =~ /\(($Ident)(?:\s+$Sparse)*\s*\*+\s*\)/sg) {
+ possible($1, "C:" . $s);
}
# Check for any sort of function declaration.
# int foo(something bar, other baz);
# void (*store_gdt)(x86_descr_ptr *);
- if ($prev_values eq 'E' && $s =~ /^(.(?:typedef\s*)?(?:(?:$Storage|$Inline)\s*)*\s*$Type\s*(?:\b$Ident|\(\*\s*$Ident\))\s*)\(/) {
+ if ($prev_values eq 'E' && $s =~ /^(.(?:typedef\s*)?(?:(?:$Storage|$Inline)\s*)*\s*$Type\s*(?:\b$Ident|\(\*\s*$Ident\))\s*)\(/s) {
my ($name_len) = length($1);
my $ctx = $s;
- substr($ctx, 0, $name_len + 1) = '';
+ substr($ctx, 0, $name_len + 1, '');
$ctx =~ s/\)[^\)]*$//;
for my $arg (split(/\s*,\s*/, $ctx)) {
- if ($arg =~ /^(?:const\s+)?($Ident)(?:\s+$Sparse)*\s*\**\s*(:?\b$Ident)?$/ || $arg =~ /^($Ident)$/) {
+ if ($arg =~ /^(?:const\s+)?($Ident)(?:\s+$Sparse)*\s*\**\s*(:?\b$Ident)?$/s || $arg =~ /^($Ident)$/s) {
- possible($1, $s);
+ possible($1, "D:" . $s);
}
}
}
# if/while/etc brace do not go on next line, unless defining a do while loop,
# or if that brace on the next line is for something else
- if ($line =~ /\b(?:(if|while|for|switch)\s*\(|do\b|else\b)/ && $line !~ /^.#/) {
+ if ($line =~ /(.*)\b((?:if|while|for|switch)\s*\(|do\b|else\b)/ && $line !~ /^.\s*\#/) {
+ my $pre_ctx = "$1$2";
+
my ($level, @ctx) = ctx_statement_level($linenr, $realcnt, 0);
- my $ctx_ln = $linenr + $#ctx + 1;
my $ctx_cnt = $realcnt - $#ctx - 1;
my $ctx = join("\n", @ctx);
- # Skip over any removed lines in the context following statement.
- while ($ctx_cnt > 0 && $lines[$ctx_ln - 1] =~ /^-/) {
+ my $ctx_ln = $linenr;
+ my $ctx_skip = $realcnt;
+
+ while ($ctx_skip > $ctx_cnt || ($ctx_skip == $ctx_cnt &&
+ defined $lines[$ctx_ln - 1] &&
+ $lines[$ctx_ln - 1] =~ /^-/)) {
+ ##print "SKIP<$ctx_skip> CNT<$ctx_cnt>\n";
+ $ctx_skip-- if (!defined $lines[$ctx_ln - 1] || $lines[$ctx_ln - 1] !~ /^-/);
$ctx_ln++;
- $ctx_cnt--;
}
- ##warn "line<$line>\nctx<$ctx>\nnext<$lines[$ctx_ln - 1]>";
- if ($ctx !~ /{\s*/ && $ctx_cnt > 0 && $lines[$ctx_ln - 1] =~ /^\+\s*{/) {
- ERROR("That open brace { should be on the previous line\n" .
- "$here\n$ctx\n$lines[$ctx_ln - 1]");
+ #print "realcnt<$realcnt> ctx_cnt<$ctx_cnt>\n";
+ #print "pre<$pre_ctx>\nline<$line>\nctx<$ctx>\nnext<$lines[$ctx_ln - 1]>\n";
+
+ if ($ctx !~ /{\s*/ && defined($lines[$ctx_ln -1]) && $lines[$ctx_ln - 1] =~ /^\+\s*{/) {
+ ERROR("that open brace { should be on the previous line\n" .
+ "$here\n$ctx\n$lines[$ctx_ln - 1]\n");
}
- if ($level == 0 && $ctx =~ /\)\s*\;\s*$/ && defined $lines[$ctx_ln - 1]) {
+ if ($level == 0 && $pre_ctx !~ /}\s*while\s*\($/ &&
+ $ctx =~ /\)\s*\;\s*$/ &&
+ defined $lines[$ctx_ln - 1])
+ {
my ($nlength, $nindent) = line_stats($lines[$ctx_ln - 1]);
if ($nindent > $indent) {
- WARN("Trailing semicolon indicates no statements, indent implies otherwise\n" .
- "$here\n$ctx\n$lines[$ctx_ln - 1]");
+ WARN("trailing semicolon indicates no statements, indent implies otherwise\n" .
+ "$here\n$ctx\n$lines[$ctx_ln - 1]\n");
+ }
+ }
+ }
+
+# Check relative indent for conditionals and blocks.
+ if ($line =~ /\b(?:(?:if|while|for)\s*\(|do\b)/ && $line !~ /^.\s*#/ && $line !~ /\}\s*while\s*/) {
+ my ($s, $c) = ($stat, $cond);
+
+ substr($s, 0, length($c), '');
+
+ # Make sure we remove the line prefixes as we have
+ # none on the first line, and are going to readd them
+ # where necessary.
+ $s =~ s/\n./\n/gs;
+
+ # Find out how long the conditional actually is.
+ my @newlines = ($c =~ /\n/gs);
+ my $cond_lines = 1 + $#newlines;
+
+ # We want to check the first line inside the block
+ # starting at the end of the conditional, so remove:
+ # 1) any blank line termination
+ # 2) any opening brace { on end of the line
+ # 3) any do (...) {
+ my $continuation = 0;
+ my $check = 0;
+ $s =~ s/^.*\bdo\b//;
+ $s =~ s/^\s*{//;
+ if ($s =~ s/^\s*\\//) {
+ $continuation = 1;
+ }
+ if ($s =~ s/^\s*?\n//) {
+ $check = 1;
+ $cond_lines++;
+ }
+
+ # Also ignore a loop construct at the end of a
+ # preprocessor statement.
+ if (($prevline =~ /^.\s*#\s*define\s/ ||
+ $prevline =~ /\\\s*$/) && $continuation == 0) {
+ $check = 0;
+ }
+
+ my $cond_ptr = -1;
+ $continuation = 0;
+ while ($cond_ptr != $cond_lines) {
+ $cond_ptr = $cond_lines;
+
+ # If we see an #else/#elif then the code
+ # is not linear.
+ if ($s =~ /^\s*\#\s*(?:else|elif)/) {
+ $check = 0;
+ }
+
+ # Ignore:
+ # 1) blank lines, they should be at 0,
+ # 2) preprocessor lines, and
+ # 3) labels.
+ if ($continuation ||
+ $s =~ /^\s*?\n/ ||
+ $s =~ /^\s*#\s*?/ ||
+ $s =~ /^\s*$Ident\s*:/) {
+ $continuation = ($s =~ /^.*?\\\n/) ? 1 : 0;
+ $s =~ s/^.*?\n//;
+ $cond_lines++;
}
}
+
+ my (undef, $sindent) = line_stats("+" . $s);
+ my $stat_real = raw_line($linenr, $cond_lines);
+
+ # Check if either of these lines are modified, else
+ # this is not this patch's fault.
+ if (!defined($stat_real) ||
+ $stat !~ /^\+/ && $stat_real !~ /^\+/) {
+ $check = 0;
+ }
+ if (defined($stat_real) && $cond_lines > 1) {
+ $stat_real = "[...]\n$stat_real";
+ }
+
+ #print "line<$line> prevline<$prevline> indent<$indent> sindent<$sindent> check<$check> continuation<$continuation> s<$s> cond_lines<$cond_lines> stat_real<$stat_real> stat<$stat>\n";
+
+ if ($check && (($sindent % 8) != 0 ||
+ ($sindent <= $indent && $s ne ''))) {
+ WARN("suspect code indent for conditional statements ($indent, $sindent)\n" . $herecurr . "$stat_real\n");
+ }
}
# Track the 'values' across context and added lines.
my $opline = $line; $opline =~ s/^./ /;
- my $curr_values = annotate_values($opline . "\n", $prev_values);
+ my ($curr_values, $curr_vars) =
+ annotate_values($opline . "\n", $prev_values);
$curr_values = $prev_values . $curr_values;
if ($dbg_values) {
my $outline = $opline; $outline =~ s/\t/ /g;
print "$linenr > .$outline\n";
print "$linenr > $curr_values\n";
+ print "$linenr > $curr_vars\n";
}
$prev_values = substr($curr_values, -1);
if ($line=~/^[^\+]/) {next;}
# TEST: allow direct testing of the type matcher.
- if ($tst_type && $line =~ /^.$Declare$/) {
- ERROR("TEST: is type $Declare\n" . $herecurr);
+ if ($dbg_type) {
+ if ($line =~ /^.\s*$Declare\s*$/) {
+ ERROR("TEST: is type\n" . $herecurr);
+ } elsif ($dbg_type > 1 && $line =~ /^.+($Declare)/) {
+ ERROR("TEST: is not type ($1 is)\n". $herecurr);
+ }
+ next;
+ }
+# TEST: allow direct testing of the attribute matcher.
+ if ($dbg_attr) {
+ if ($line =~ /^.\s*$Attribute\s*$/) {
+ ERROR("TEST: is attr\n" . $herecurr);
+ } elsif ($dbg_attr > 1 && $line =~ /^.+($Attribute)/) {
+ ERROR("TEST: is not attr ($1 is)\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);
+ ERROR("that open brace { should be on the previous line\n" . $hereprev);
}
#
#
# check for malformed paths in #include statements (uses RAW line)
- if ($rawline =~ m{^.#\s*include\s+[<"](.*)[">]}) {
+ if ($rawline =~ m{^.\s*\#\s*include\s+[<"](.*)[">]}) {
my $path = $1;
if ($path =~ m{//}) {
ERROR("malformed #include filename\n" .
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*(?:;|=|\[)/)) {
+ if ($prevline !~ /(?:
+ ^.}|
+ ^.DEFINE_$Ident\(\Q$name\E\)|
+ ^.DECLARE_$Ident\(\Q$name\E\)|
+ ^.LIST_HEAD\(\Q$name\E\)|
+ ^.$Type\s*\(\s*\*\s*\Q$name\E\s*\)\s*\(|
+ \b\Q$name\E(?:\s+$Attribute)?\s*(?:;|=|\[)
+ )/x) {
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);/) {
+ if ($line =~ /^.$Type\s*$Ident\s*(?:\s+$Modifier)*\s*=\s*(0|NULL|false)\s*;/) {
ERROR("do not initialise externals to 0 or NULL\n" .
$herecurr);
}
# check for static initialisers.
- if ($line =~ /\s*static\s.*=\s*(0|NULL);/) {
+ if ($line =~ /\s*static\s.*=\s*(0|NULL|false)\s*;/) {
ERROR("do not initialise statics to 0 or NULL\n" .
$herecurr);
}
# make sense.
if ($line =~ /\btypedef\s/ &&
$line !~ /\btypedef\s+$Type\s+\(\s*\*?$Ident\s*\)\s*\(/ &&
+ $line !~ /\btypedef\s+$Type\s+$Ident\s*\(/ &&
+ $line !~ /\b$typeTypedefs\b/ &&
$line !~ /\b__bitwise(?:__|)\b/) {
WARN("do not add new typedefs\n" . $herecurr);
}
ERROR("\"(foo $1 )\" should be \"(foo $1)\"\n" .
$herecurr);
- } elsif ($line =~ m{$NonptrType(\*+)(?:\s+(?:$Attribute|$Sparse))?\s+[A-Za-z\d_]+}) {
+ } elsif ($line =~ m{\b$NonptrType(\*+)(?:\s+(?:$Attribute|$Sparse))?\s+[A-Za-z\d_]+}) {
ERROR("\"foo$1 bar\" should be \"foo $1bar\"\n" .
$herecurr);
- } elsif ($line =~ m{$NonptrType\s+(\*+)(?!\s+(?:$Attribute|$Sparse))\s+[A-Za-z\d_]+}) {
+ } elsif ($line =~ m{\b$NonptrType\s+(\*+)(?!\s+(?:$Attribute|$Sparse))\s+[A-Za-z\d_]+}) {
ERROR("\"foo $1 bar\" should be \"foo $1bar\"\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=~/}/)) {
+ 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 '{' following $1 go on the same line\n" . $hereprev);
}
+# check for spacing round square brackets; allowed:
+# 1. with a type on the left -- int [] a;
+# 2. at the beginning of a line for slice initialisers -- [0...10] = 5,
+# 3. inside a curly brace -- = { [0...10] = 5 }
+ while ($line =~ /(.*?\s)\[/g) {
+ my ($where, $prefix) = ($-[1], $1);
+ if ($prefix !~ /$Type\s+$/ &&
+ ($where != 0 || $prefix !~ /^.\s+$/) &&
+ $prefix !~ /{\s+$/) {
+ ERROR("space prohibited before open square bracket '['\n" . $herecurr);
+ }
+ }
+
# check for spaces between functions and their parentheses.
while ($line =~ /($Ident)\s+\(/g) {
my $name = $1;
- my $ctx = substr($line, 0, $-[1]);
+ my $ctx_before = substr($line, 0, $-[1]);
+ my $ctx = "$ctx_before$name";
# Ignore those directives where spaces _are_ permitted.
- if ($name =~ /^(?:if|for|while|switch|return|volatile|__volatile__|__attribute__|format|__extension__|Copyright|case|__asm__)$/) {
+ if ($name =~ /^(?:
+ if|for|while|switch|return|case|
+ volatile|__volatile__|
+ __attribute__|format|__extension__|
+ asm|__asm__)$/x)
+ {
# cpp #define statements have non-optional spaces, ie
# if there is a space between the name and the open
# parenthesis it is simply not a parameter group.
- } elsif ($ctx =~ /^.\#\s*define\s*$/) {
+ } elsif ($ctx_before =~ /^.\s*\#\s*define\s*$/) {
+
+ # cpp #elif statement condition may start with a (
+ } elsif ($ctx =~ /^.\s*\#\s*elif\s*$/) {
# If this whole things ends with a type its most
# likely a typedef for a function.
- } elsif ("$ctx$name" =~ /$Type$/) {
+ } elsif ($ctx =~ /$Type$/) {
} else {
- WARN("no space between function name and open parenthesis '('\n" . $herecurr);
+ WARN("space prohibited between function name and open parenthesis '('\n" . $herecurr);
}
}
# Check operator spacing.
<<=|>>=|<=|>=|==|!=|
\+=|-=|\*=|\/=|%=|\^=|\|=|&=|
=>|->|<<|>>|<|>|=|!|~|
- &&|\|\||,|\^|\+\+|--|&|\||\+|-|\*|\/|%
+ &&|\|\||,|\^|\+\+|--|&|\||\+|-|\*|\/|%|
+ \?|:
}x;
my @elements = split(/($ops|;)/, $opline);
my $off = 0;
for (my $n = 0; $n < $#elements; $n += 2) {
$off += length($elements[$n]);
+ # 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 $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);
+ $a = 'E' if ($ca =~ /^\s*$/);
my $op = $elements[$n + 1];
$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.
+ # Pull out the value of this operator.
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";
- #}
+
+ # Get the full operator variant.
+ my $opv = $op . substr($curr_vars, $off, 1);
# Ignore operators passed as parameters.
if ($op_type ne 'V' &&
} elsif ($op eq ';') {
if ($ctx !~ /.x[WEBC]/ &&
$cc !~ /^\\/ && $cc !~ /^;/) {
- ERROR("need space after that '$op' $at\n" . $hereptr);
+ ERROR("space required after that '$op' $at\n" . $hereptr);
}
# // is a comment
} elsif ($op eq '//') {
- # -> should have no spaces
- } elsif ($op eq '->') {
+ # No spaces for:
+ # ->
+ # : when part of a bitfield
+ } elsif ($op eq '->' || $opv eq ':B') {
if ($ctx =~ /Wx.|.xW/) {
- ERROR("no spaces around that '$op' $at\n" . $hereptr);
+ ERROR("spaces prohibited 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);
+ ERROR("space required after that '$op' $at\n" . $hereptr);
}
# '*' as part of a type definition -- reported already.
- } elsif ($op eq '*' && $is_unary == 2) {
+ } elsif ($opv eq '*_') {
#warn "'*' is part of type\n";
# unary operators should have a space before and
# none after. May be left adjacent to another
# unary operator, or a cast
} elsif ($op eq '!' || $op eq '~' ||
- ($is_unary && ($op eq '*' || $op eq '-' || $op eq '&'))) {
+ $opv eq '*U' || $opv eq '-U' ||
+ $opv eq '&U' || $opv eq '&&U') {
if ($ctx !~ /[WEBC]x./ && $ca !~ /(?:\)|!|~|\*|-|\&|\||\+\+|\-\-|\{)$/) {
- ERROR("need space before that '$op' $at\n" . $hereptr);
+ ERROR("space required before that '$op' $at\n" . $hereptr);
}
- if ($ctx =~ /.xW/) {
- ERROR("no space after that '$op' $at\n" . $hereptr);
+ if ($op eq '*' && $cc =~/\s*const\b/) {
+ # A unary '*' may be const
+
+ } elsif ($ctx =~ /.xW/) {
+ ERROR("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 !~ /[WOBC]x[^W]/ && $ctx !~ /[^W]x[WOBEC]/) {
- ERROR("need space one side of that '$op' $at\n" . $hereptr);
+ if ($ctx !~ /[WEOBC]x[^W]/ && $ctx !~ /[^W]x[WOBEC]/) {
+ ERROR("space required one side of that '$op' $at\n" . $hereptr);
+ }
+ if ($ctx =~ /Wx[BE]/ ||
+ ($ctx =~ /Wx./ && $cc =~ /^;/)) {
+ ERROR("space prohibited before that '$op' $at\n" . $hereptr);
}
- if ($ctx =~ /WxB/ || ($ctx =~ /Wx./ && $cc =~ /^;/)) {
- ERROR("no space before that '$op' $at\n" . $hereptr);
+ if ($ctx =~ /ExW/) {
+ ERROR("space prohibited after that '$op' $at\n" . $hereptr);
}
+
# << and >> may either have or not have spaces both sides
} elsif ($op eq '<<' or $op eq '>>' or
$op eq '&' or $op eq '^' or $op eq '|' or
$op eq '*' or $op eq '/' or
$op eq '%')
{
- if ($ctx !~ /VxV|WxW|VxE|WxE|VxO|Cx.|.xC/) {
+ if ($ctx =~ /Wx[^WCE]|[^WCE]xW/) {
ERROR("need consistent spacing around '$op' $at\n" .
$hereptr);
}
+ # A colon needs no spaces before when it is
+ # terminating a case value or a label.
+ } elsif ($opv eq ':C' || $opv eq ':L') {
+ if ($ctx =~ /Wx./) {
+ ERROR("space prohibited before that '$op' $at\n" . $hereptr);
+ }
+
# All the others need spaces both sides.
} elsif ($ctx !~ /[EWC]x[CWE]/) {
+ my $ok = 0;
+
# Ignore email addresses <foo@bar>
- if (!($op eq '<' && $cb =~ /$;\S+\@\S+>/) &&
- !($op eq '>' && $cb =~ /<\S+\@\S+$;/)) {
- ERROR("need spaces around that '$op' $at\n" . $hereptr);
+ if (($op eq '<' &&
+ $cc =~ /^\S+\@\S+>/) ||
+ ($op eq '>' &&
+ $ca =~ /<\S+\@\S+$/))
+ {
+ $ok = 1;
+ }
+
+ # Ignore ?:
+ if (($opv eq ':O' && $ca =~ /\?$/) ||
+ ($op eq '?' && $cc =~ /^:/)) {
+ $ok = 1;
+ }
+
+ if ($ok == 0) {
+ ERROR("spaces required around that '$op' $at\n" . $hereptr);
}
}
$off += length($elements[$n + 1]);
#need space before brace following if, while, etc
if (($line =~ /\(.*\){/ && $line !~ /\($Type\){/) ||
$line =~ /do{/) {
- ERROR("need a space before the open brace '{'\n" . $herecurr);
+ ERROR("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("need a space after that close brace '}'\n" . $herecurr);
+ ERROR("space required after that close brace '}'\n" . $herecurr);
}
# check spacing on square brackets
if ($line =~ /\[\s/ && $line !~ /\[\s*$/) {
- ERROR("no space after that open square bracket '['\n" . $herecurr);
+ ERROR("space prohibited after that open square bracket '['\n" . $herecurr);
}
if ($line =~ /\s\]/) {
- ERROR("no space before that close square bracket ']'\n" . $herecurr);
+ ERROR("space prohibited before that close square bracket ']'\n" . $herecurr);
}
-# check spacing on paretheses
+# check spacing on parentheses
if ($line =~ /\(\s/ && $line !~ /\(\s*(?:\\)?$/ &&
$line !~ /for\s*\(\s+;/) {
- ERROR("no space after that open parenthesis '('\n" . $herecurr);
+ ERROR("space prohibited after that open parenthesis '('\n" . $herecurr);
}
if ($line =~ /(\s+)\)/ && $line !~ /^.\s*\)/ &&
- $line !~ /for\s*\(.*;\s+\)/) {
- ERROR("no space before that close parenthesis ')'\n" . $herecurr);
+ $line !~ /for\s*\(.*;\s+\)/ &&
+ $line !~ /:\s+\)/) {
+ ERROR("space prohibited before that close parenthesis ')'\n" . $herecurr);
}
#goto labels aren't indented, allow a single space however
WARN("labels should not be indented\n" . $herecurr);
}
+# Return is not a function.
+ if (defined($stat) && $stat =~ /^.\s*return(\s*)(\(.*);/s) {
+ my $spacing = $1;
+ my $value = $2;
+
+ # Flatten any parentheses and braces
+ $value =~ s/\)\(/\) \(/g;
+ while ($value =~ s/\([^\(\)]*\)/1/) {
+ }
+
+ if ($value =~ /^(?:$Ident|-?$Constant)$/) {
+ ERROR("return is not a function, parentheses are not required\n" . $herecurr);
+
+ } elsif ($spacing !~ /\s+/) {
+ ERROR("space required before the open parenthesis '('\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);
+ ERROR("space required before the open parenthesis '('\n" . $herecurr);
+ }
+
+# Check for illegal assignment in if conditional -- and check for trailing
+# statements after the conditional.
+ if ($line =~ /do\s*(?!{)/) {
+ my ($stat_next) = ctx_statement_block($line_nr_next,
+ $remain_next, $off_next);
+ $stat_next =~ s/\n./\n /g;
+ ##print "stat<$stat> stat_next<$stat_next>\n";
+
+ if ($stat_next =~ /^\s*while\b/) {
+ # If the statement carries leading newlines,
+ # then count those as offsets.
+ my ($whitespace) =
+ ($stat_next =~ /^((?:\s*\n[+-])*\s*)/s);
+ my $offset =
+ statement_rawlines($whitespace) - 1;
+
+ $suppress_whiletrailers{$line_nr_next +
+ $offset} = 1;
+ }
}
-
-# Check for illegal assignment in if conditional.
- if ($line =~ /\bif\s*\(/) {
- my ($s, $c) = ctx_statement_block($linenr, $realcnt, 0);
+ if (!defined $suppress_whiletrailers{$linenr} &&
+ $line =~ /\b(?:if|while|for)\s*\(/ && $line !~ /^.\s*#/) {
+ my ($s, $c) = ($stat, $cond);
if ($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($c)) = '';
+ substr($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" . $herecurr);
+ if (length($c) && $s !~ /^\s*{?\s*\\*\s*$/ &&
+ $c !~ /}\s*while\s*/)
+ {
+ # Find out how long the conditional actually is.
+ my @newlines = ($c =~ /\n/gs);
+ my $cond_lines = 1 + $#newlines;
+
+ my $stat_real = raw_line($linenr, $cond_lines);
+ if (defined($stat_real) && $cond_lines > 1) {
+ $stat_real = "[...]\n$stat_real";
+ }
+
+ ERROR("trailing statements should be on next line\n" . $herecurr . $stat_real);
}
}
ERROR("trailing statements should be on next line\n" . $herecurr);
}
}
+# case and default should not have general statements after them
+ if ($line =~ /^.\s*(?:case\s*.*|default\s*):/g &&
+ $line !~ /\G(?:
+ (?:\s*$;*)(?:\s*{)?(?:\s*$;*)(?:\s*\\)?\s*$|
+ \s*return\s+
+ )/xg)
+ {
+ ERROR("trailing statements should be on next line\n" . $herecurr);
+ }
# Check for }<nl>else {, these must be at the same
# indent level to be relevant to each other.
# Find out what is on the end of the line after the
# conditional.
- substr($s, 0, length($c)) = '';
+ substr($s, 0, length($c), '');
$s =~ s/\n.*//g;
if ($s =~ /^\s*;/) {
# }
#no spaces allowed after \ in define
- if ($line=~/\#define.*\\\s$/) {
+ if ($line=~/\#\s*define.*\\\s$/) {
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" .
- $herecurr);
+ if ($tree && $rawline =~ m{^.\s*\#\s*include\s*\<asm\/(.*)\.h\>}) {
+ my $file = "$1.h";
+ my $checkfile = "include/linux/$file";
+ if (-f "$root/$checkfile" &&
+ $realfile ne $checkfile &&
+ $1 ne 'irq')
+ {
+ if ($realfile =~ m{^arch/}) {
+ CHK("Consider using #include <linux/$file> instead of <asm/$file>\n" . $herecurr);
+ } else {
+ WARN("Use #include <linux/$file> instead of <asm/$file>\n" . $herecurr);
+ }
}
}
# multi-statement macros should be enclosed in a do while loop, grab the
# first statement and ensure its the whole macro if its not enclosed
# in a known good container
- if ($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.
+ if ($realfile !~ m@/vmlinux.lds.h$@ &&
+ $line =~ /^.\s*\#\s*define\s*$Ident(\()?/) {
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--;
- $cnt++;
+ my ($off, $dstat, $dcond, $rest);
+ my $ctx = '';
+
+ my $args = defined($1);
+
+ # Find the end of the macro and limit our statement
+ # search to that.
+ while ($cnt > 0 && defined $lines[$ln - 1] &&
+ $lines[$ln - 1] =~ /^(?:-|..*\\$)/)
+ {
+ $ctx .= $rawlines[$ln - 1] . "\n";
+ $cnt-- if ($lines[$ln - 1] !~ /^-/);
+ $ln++;
+ }
+ $ctx .= $rawlines[$ln - 1];
+
+ ($dstat, $dcond, $ln, $cnt, $off) =
+ ctx_statement_block($linenr, $ln - $linenr + 1, 0);
+ #print "dstat<$dstat> dcond<$dcond> cnt<$cnt> off<$off>\n";
+ #print "LINE<$lines[$ln-1]> len<" . length($lines[$ln-1]) . "\n";
+
+ # Extract the remainder of the define (if any) and
+ # rip off surrounding spaces, and trailing \'s.
+ $rest = '';
+ while ($off != 0 || ($cnt > 0 && $rest =~ /\\\s*$/)) {
+ #print "ADDING cnt<$cnt> $off <" . substr($lines[$ln - 1], $off) . "> rest<$rest>\n";
+ if ($off != 0 || $lines[$ln - 1] !~ /^-/) {
+ $rest .= substr($lines[$ln - 1], $off) . "\n";
+ $cnt--;
}
+ $ln++;
+ $off = 0;
}
- my @ctx = ctx_statement($ln, $cnt, $off);
- my $ctx_ln = $ln + $#ctx + 1;
- my $ctx = join("\n", @ctx);
+ $rest =~ s/\\\n.//g;
+ $rest =~ s/^\s*//s;
+ $rest =~ s/\s*$//s;
- # Pull in any empty extension lines.
- while ($ctx =~ /\\$/ &&
- $lines[$ctx_ln - 1] =~ /^.\s*(?:\\)?$/) {
- $ctx .= $lines[$ctx_ln - 1];
- $ctx_ln++;
+ # Clean up the original statement.
+ if ($args) {
+ substr($dstat, 0, length($dcond), '');
+ } else {
+ $dstat =~ s/^.\s*\#\s*define\s+$Ident\s*//;
+ }
+ $dstat =~ s/$;//g;
+ $dstat =~ s/\\\n.//g;
+ $dstat =~ s/^\s*//s;
+ $dstat =~ s/\s*$//s;
+
+ # Flatten any parentheses and braces
+ while ($dstat =~ s/\([^\(\)]*\)/1/ ||
+ $dstat =~ s/\{[^\{\}]*\}/1/ ||
+ $dstat =~ s/\[[^\{\}]*\]/1/)
+ {
}
- if ($ctx =~ /\\$/) {
- if ($ctx =~ /;/) {
+ my $exceptions = qr{
+ $Declare|
+ module_param_named|
+ MODULE_PARAM_DESC|
+ DECLARE_PER_CPU|
+ DEFINE_PER_CPU|
+ __typeof__\(
+ }x;
+ #print "REST<$rest>\n";
+ if ($rest ne '') {
+ if ($rest !~ /while\s*\(/ &&
+ $dstat !~ /$exceptions/)
+ {
ERROR("Macros with multiple statements should be enclosed in a do - while loop\n" . "$here\n$ctx\n");
- } else {
+ }
+
+ } elsif ($ctx !~ /;/) {
+ if ($dstat ne '' &&
+ $dstat !~ /^(?:$Ident|-?$Constant)$/ &&
+ $dstat !~ /$exceptions/ &&
+ $dstat !~ /^\.$Ident\s*=/ &&
+ $dstat =~ /$Operators/)
+ {
ERROR("Macros with complex values should be enclosed in parenthesis\n" . "$here\n$ctx\n");
}
}
if ($#chunks > 0 && $level == 0) {
my $allowed = 0;
my $seen = 0;
- my $herectx = $here . "\n";;
+ my $herectx = $here . "\n";
my $ln = $linenr - 1;
for my $chunk (@chunks) {
my ($cond, $block) = @{$chunk};
- $herectx .= "$rawlines[$ln]\n[...]\n";
+ # If the condition carries leading newlines, then count those as offsets.
+ my ($whitespace) = ($cond =~ /^((?:\s*\n[+-])*\s*)/s);
+ my $offset = statement_rawlines($whitespace) - 1;
+
+ #print "COND<$cond> whitespace<$whitespace> offset<$offset>\n";
+
+ # We have looked at and allowed this specific line.
+ $suppress_ifbraces{$ln + $offset} = 1;
+
+ $herectx .= "$rawlines[$ln + $offset]\n[...]\n";
$ln += statement_rawlines($block) - 1;
- substr($block, 0, length($cond)) = '';
+ substr($block, 0, length($cond), '');
$seen++ if ($block =~ /^\s*{/);
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 &&
+ if (!defined $suppress_ifbraces{$linenr - 1} &&
$line =~ /\b(if|while|for|else)\b/) {
- my ($level, $endln, @chunks) =
- ctx_statement_full($linenr, $realcnt, $-[0]);
-
my $allowed = 0;
# Check the pre-context.
#print "APW: ALLOWED: pre<$1>\n";
$allowed = 1;
}
+
+ my ($level, $endln, @chunks) =
+ ctx_statement_full($linenr, $realcnt, $-[0]);
+
# Check the condition.
my ($cond, $block) = @{$chunks[0]};
+ #print "CHECKING<$linenr> cond<$cond> block<$block>\n";
if (defined $cond) {
- substr($block, 0, length($cond)) = '';
+ substr($block, 0, length($cond), '');
}
if (statement_lines($cond) > 1) {
#print "APW: ALLOWED: cond<$cond>\n";
if (defined $chunks[1]) {
my ($cond, $block) = @{$chunks[1]};
if (defined $cond) {
- substr($block, 0, length($cond)) = '';
+ substr($block, 0, length($cond), '');
}
if ($block =~ /^\s*\{/) {
#print "APW: ALLOWED: chunk-1 block<$block>\n";
}
if ($level == 0 && $block =~ /^\s*\{/ && !$allowed) {
my $herectx = $here . "\n";;
- my $end = $linenr + statement_rawlines($block) - 1;
+ my $cnt = statement_rawlines($block);
- for (my $ln = $linenr - 1; $ln < $end; $ln++) {
- $herectx .= $rawlines[$ln] . "\n";;
+ for (my $n = 0; $n < $cnt; $n++) {
+ $herectx .= raw_line($linenr, $n) . "\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*\<$inc>@) {
+ if ($rawline =~ m@^.\s*\#\s*include\s*\<$inc>@) {
ERROR("Don't use <$inc>: see Documentation/feature-removal-schedule.txt\n" . $herecurr);
}
}
}
# warn about #if 0
- if ($line =~ /^.#\s*if\s+0\b/) {
+ if ($line =~ /^.\s*\#\s*if\s+0\b/) {
CHK("if this code is redundant consider removing it\n" .
$herecurr);
}
if ($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("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" . $hereprev);
}
}
# warn about #ifdefs in C files
-# if ($line =~ /^.#\s*if(|n)def/ && ($realfile =~ /\.c$/)) {
+# if ($line =~ /^.\s*\#\s*if(|n)def/ && ($realfile =~ /\.c$/)) {
# print "#ifdef in C files should be avoided\n";
# print "$herecurr";
# $clean = 0;
# }
# warn about spacing in #ifdefs
- if ($line =~ /^.#\s*(ifdef|ifndef|elif)\s\s+/) {
+ if ($line =~ /^.\s*\#\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+;/) {
+ if ($line =~ /^.\s*(struct\s+mutex|spinlock_t)\s+\S+;/ ||
+ $line =~ /^.\s*(DEFINE_MUTEX)\s*\(/) {
my $which = $1;
if (!ctx_has_comment($first_line, $linenr)) {
CHK("$1 definition without comment\n" . $herecurr);
}
}
# check of hardware specific defines
- if ($line =~ m@^.#\s*if.*\b(__i386__|__powerpc64__|__sun__|__s390x__)\b@ && $realfile !~ m@include/asm-@) {
+ if ($line =~ m@^.\s*\#\s*if.*\b(__i386__|__powerpc64__|__sun__|__s390x__)\b@ && $realfile !~ m@include/asm-@) {
CHK("architecture specific defines should be avoided\n" . $herecurr);
}
}
# check for new externs in .c files.
- if ($line =~ /^.\s*extern\s/ && ($realfile =~ /\.c$/)) {
+ if ($realfile =~ /\.c$/ && defined $stat &&
+ $stat =~ /^.\s*(?:extern\s+)?$Type\s+($Ident)(\s*)\(/s)
+ {
+ my $function_name = $1;
+ my $paren_space = $2;
+
+ my $s = $stat;
+ if (defined $cond) {
+ substr($s, 0, length($cond), '');
+ }
+ if ($s =~ /^\s*;/ &&
+ $function_name ne 'uninitialized_var')
+ {
+ WARN("externs should be avoided in .c files\n" . $herecurr);
+ }
+
+ if ($paren_space =~ /\n/) {
+ WARN("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" . $herecurr);
}
if ($line =~ /__FUNCTION__/) {
WARN("__func__ should be used instead of gcc specific __FUNCTION__\n" . $herecurr);
}
+
+# check for semaphores used as mutexes
+ if ($line =~ /^.\s*(DECLARE_MUTEX|init_MUTEX)\s*\(/) {
+ WARN("mutexes are preferred for single holder semaphores\n" . $herecurr);
+ }
+# check for semaphores used as mutexes
+ if ($line =~ /^.\s*init_MUTEX_LOCKED\s*\(/) {
+ WARN("consider using a completion\n" . $herecurr);
+ }
+# recommend strict_strto* over simple_strto*
+ if ($line =~ /\bsimple_(strto.*?)\s*\(/) {
+ WARN("consider using strict_$1 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" . $herecurr);
+ }
+
+# use of NR_CPUS is usually wrong
+# ignore definitions of NR_CPUS and usage to define arrays as likely right
+ if ($line =~ /\bNR_CPUS\b/ &&
+ $line !~ /^.\s*\s*#\s*if\b.*\bNR_CPUS\b/ &&
+ $line !~ /^.\s*\s*#\s*define\b.*\bNR_CPUS\b/ &&
+ $line !~ /^.\s*$Declare\s.*\[[^\]]*NR_CPUS[^\]]*\]/ &&
+ $line !~ /\[[^\]]*\.\.\.[^\]]*NR_CPUS[^\]]*\]/ &&
+ $line !~ /\[[^\]]*NR_CPUS[^\]]*\.\.\.[^\]]*\]/)
+ {
+ WARN("usage of NR_CPUS is often wrong - consider using cpu_possible(), num_possible_cpus(), for_each_possible_cpu(), etc\n" . $herecurr);
+ }
+
+# check for %L{u,d,i} in strings
+ my $string;
+ while ($line =~ /(?:^|")([X\t]*)(?:"|$)/g) {
+ $string = substr($rawline, $-[1], $+[1] - $-[1]);
+ $string =~ s/%%/__/g;
+ if ($string =~ /(?<!%)%L[udi]/) {
+ WARN("\%Ld/%Lu are not-standard C, use %lld/%llu\n" . $herecurr);
+ last;
+ }
+ }
}
# If we have no input at all, then there is nothing to report on
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff