my $P = $0;
$P =~ s@.*/@@g;
-my $V = '0.15';
+my $V = '0.18';
use Getopt::Long qw(:config no_auto_abbrev);
my $chk_signoff = 1;
my $chk_patch = 1;
my $tst_type = 0;
+my $tst_only;
my $emacs = 0;
my $terse = 0;
my $file = 0;
'debug=s' => \%debug,
'test-type!' => \$tst_type,
+ 'test-only=s' => \$tst_only,
) or exit;
my $exit = 0;
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 @typeList = (
qr{void},
qr{char},
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) {
- $quote = '';
+ if (substr($line, $off, 2) eq $sanitise_quote) {
+ $sanitise_quote = '';
+ substr($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 '>'.
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) {
$c = substr($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 '{') && $c eq '{') {
#warn "STATEMENT<$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, $statement ]);
}
print "$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) {
$type = 'T';
} elsif ($cur =~ /^(#\s*define\s*$Ident)(\(?)/o) {
- print "DEFINE($1)\n" if ($dbg_values > 1);
+ 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*undef\s*$Ident)/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);
push(@av_paren_type, $type);
push(@av_paren_type, $type);
- $type = 'N';
+ $type = 'E';
} elsif ($cur =~ /^(#\s*(?:else|elif))/o) {
print "PRE_RESTART($1)\n" if ($dbg_values > 1);
push(@av_paren_type, $av_paren_type[$#av_paren_type]);
- $type = 'N';
+ $type = 'E';
} elsif ($cur =~ /^(#\s*(?:endif))/o) {
print "PRE_END($1)\n" if ($dbg_values > 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) {
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++;
}
my $prev_values = 'E';
# suppression flags
- my $suppress_ifbraces = 0;
+ my %suppress_ifbraces;
# 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;
+ }
+
+ # 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;
+ for (my $ln = $linenr + 1; $ln < ($linenr + $realcnt); $ln++) {
+ next if ($line =~ /^-/);
+ ($edge) = ($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 (!defined $edge &&
+ $rawlines[$linenr] =~ m@^.\s* \*(?:\s|$)@)
+ {
+ $in_comment = 1;
+ }
+
+ ##print "COMMENT:$in_comment edge<$edge> $rawline\n";
+ sanitise_line_reset($in_comment);
+
+ } elsif ($realcnt && $rawline =~ /^(?:\+| |$)/) {
+ # Standardise the strings and chars within the input to
+ # simplify matching -- only bother with positive lines.
+ $line = sanitise_line($rawline);
+ }
+ push(@lines, $line);
+
+ if ($realcnt > 1) {
+ $realcnt-- if ($line =~ /^(?:\+| |$)/);
+ } else {
+ $realcnt = 0;
}
+ #print "==>$rawline\n";
+ #print "-->$line\n";
+
if ($setup_docs && $line =~ /^\+/) {
push(@setup_docs, $line);
}
$prefix = '';
+ $realcnt = 0;
+ $linenr = 0;
foreach my $line (@lines) {
$linenr++;
my $rawline = $rawlines[$linenr - 1];
-#extract the 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 = $linenr - 1;
+ %suppress_ifbraces = ();
next;
- }
# track the line number as we move through the hunk, note that
# new versions of GNU diff omit the leading space on completely
# blank context lines so we need to count that too.
- if ($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" .
$herecurr);
}
}
# UTF-8 regex found at http://www.w3.org/International/questions/qa-forms-utf-8.en.php
if (($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);
+ $rawline !~ m/^$UTF8*$/) {
+ my ($utf8_prefix) = ($rawline =~ /^($UTF8*)/);
+
+ my $blank = copy_spacing($rawline);
+ my $ptr = substr($blank, 0, length($utf8_prefix)) . "^";
+ my $hereptr = "$hereline$ptr\n";
+
+ ERROR("Invalid UTF-8, patch and commit message should be encoded in UTF-8\n" . $hereptr);
}
#ignore lines being removed
if ($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 for RCS/CVS revision markers
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, $cond);
+ if ($realcnt && $line =~ /.\s*\S/) {
+ ($stat, $cond) = ctx_statement_block($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*\(/) {
+ } elsif ($s =~ /^.\s*$Ident\s*\(/s) {
# definitions in global scope can only start with types
- } elsif ($s =~ /^.(?:$Storage\s+)?(?:$Inline\s+)?(?:const\s+)?($Ident)\b/) {
+ } elsif ($s =~ /^.(?:$Storage\s+)?(?:$Inline\s+)?(?:const\s+)?($Ident)\b/s) {
possible($1, $s);
# declarations always start with types
- } elsif ($prev_values eq 'E' && $s =~ /^.\s*(?:$Storage\s+)?(?:const\s+)?($Ident)\b(:?\s+$Sparse)?\s*\**\s*$Ident\s*(?:;|=|,)/) {
+ } elsif ($prev_values eq 'E' && $s =~ /^.\s*(?:$Storage\s+)?(?:const\s+)?($Ident)\b(:?\s+$Sparse)?\s*\**\s*$Ident\s*(?:;|=|,)/s) {
possible($1, $s);
}
# any (foo ... *) is a pointer cast, and foo is a type
- while ($s =~ /\(($Ident)(?:\s+$Sparse)*\s*\*+\s*\)/g) {
+ while ($s =~ /\(($Ident)(?:\s+$Sparse)*\s*\*+\s*\)/sg) {
possible($1, $s);
}
# Check for any sort of function declaration.
# int foo(something bar, other baz);
# void (*store_gdt)(x86_descr_ptr *);
- if ($prev_values eq 'E' && $s =~ /^(.(?:typedef\s*)?(?:(?:$Storage|$Inline)\s*)*\s*$Type\s*(?:\b$Ident|\(\*\s*$Ident\))\s*)\(/) {
+ 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*/, $ctx)) {
# if/while/etc brace do not go on next line, unless defining a do while loop,
# or if that brace on the next line is for something else
- if ($line =~ /\b(?:(if|while|for|switch)\s*\(|do\b|else\b)/ && $line !~ /^.#/) {
+ if ($line =~ /(.*)\b((?:if|while|for|switch)\s*\(|do\b|else\b)/ && $line !~ /^.#/) {
+ my $pre_ctx = "$1$2";
+
my ($level, @ctx) = ctx_statement_level($linenr, $realcnt, 0);
my $ctx_ln = $linenr + $#ctx + 1;
my $ctx_cnt = $realcnt - $#ctx - 1;
my $ctx = join("\n", @ctx);
+ ##warn "realcnt<$realcnt> ctx_cnt<$ctx_cnt>\n";
+
# Skip over any removed lines in the context following statement.
- while ($ctx_cnt > 0 && $lines[$ctx_ln - 1] =~ /^-/) {
+ while (defined($lines[$ctx_ln - 1]) && $lines[$ctx_ln - 1] =~ /^-/) {
$ctx_ln++;
- $ctx_cnt--;
}
- ##warn "line<$line>\nctx<$ctx>\nnext<$lines[$ctx_ln - 1]>";
+ ##warn "pre<$pre_ctx>\nline<$line>\nctx<$ctx>\nnext<$lines[$ctx_ln - 1]>\n";
- if ($ctx !~ /{\s*/ && $ctx_cnt > 0 && $lines[$ctx_ln - 1] =~ /^\+\s*{/) {
- ERROR("That open brace { should be on the previous line\n" .
+ if ($ctx !~ /{\s*/ && defined($lines[$ctx_ln -1]) && $lines[$ctx_ln - 1] =~ /^\+\s*{/) {
+ ERROR("that open brace { should be on the previous line\n" .
"$here\n$ctx\n$lines[$ctx_ln - 1]");
}
- if ($level == 0 && $ctx =~ /\)\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 > $indent) {
- WARN("Trailing semicolon indicates no statements, indent implies otherwise\n" .
+ WARN("trailing semicolon indicates no statements, indent implies otherwise\n" .
"$here\n$ctx\n$lines[$ctx_ln - 1]");
}
}
# check for initialisation to aggregates open brace on the next line
if ($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" . $hereprev);
}
#
($prevline !~ /^ }/) &&
($prevline !~ /^.DECLARE_$Ident\(\Q$name\E\)/) &&
($prevline !~ /^.LIST_HEAD\(\Q$name\E\)/) &&
+ ($prevline !~ /^.$Type\s*\(\s*\*\s*\Q$name\E\s*\)\s*\(/) &&
($prevline !~ /\b\Q$name\E(?:\s+$Attribute)?\s*(?:;|=|\[)/)) {
WARN("EXPORT_SYMBOL(foo); should immediately follow its function/variable\n" . $herecurr);
}
}
# check for external initialisers.
- if ($line =~ /^.$Type\s*$Ident\s*=\s*(0|NULL);/) {
+ if ($line =~ /^.$Type\s*$Ident\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" .
$herecurr);
}
# check for spaces between functions and their parentheses.
while ($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*define\s*$/) {
+
+ # cpp #elif statement condition may start with a (
+ } elsif ($ctx =~ /^.\#\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.
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] =~ /(\[|\()$/);
$a = 'O' if ($elements[$n] eq '');
- $a = 'E' if ($elements[$n] eq '' && $n == 0);
+ $a = 'E' if ($ca =~ /^\s*$/);
my $op = $elements[$n + 1];
$c = 'E';
}
- # Pick up the preceeding and succeeding characters.
- my $ca = substr($opline, 0, $off);
- my $cc = '';
- if (length($opline) >= ($off + length($elements[$n + 1]))) {
- $cc = substr($opline, $off + length($elements[$n + 1]));
- }
- my $cb = "$ca$;$cc";
-
my $ctx = "${a}x${c}";
my $at = "(ctx:$ctx)";
} elsif ($op eq ';') {
if ($ctx !~ /.x[WEBC]/ &&
$cc !~ /^\\/ && $cc !~ /^;/) {
- ERROR("need space after that '$op' $at\n" . $hereptr);
+ ERROR("space required after that '$op' $at\n" . $hereptr);
}
# // is a comment
# -> should have no spaces
} elsif ($op eq '->') {
if ($ctx =~ /Wx.|.xW/) {
- ERROR("no spaces around that '$op' $at\n" . $hereptr);
+ ERROR("spaces prohibited around that '$op' $at\n" . $hereptr);
}
# , must have a space on the right.
} elsif ($op eq ',') {
if ($ctx !~ /.x[WEC]/ && $cc !~ /^}/) {
- ERROR("need space after that '$op' $at\n" . $hereptr);
+ ERROR("space required after that '$op' $at\n" . $hereptr);
}
# '*' as part of a type definition -- reported already.
} elsif ($op eq '!' || $op eq '~' ||
($is_unary && ($op eq '*' || $op eq '-' || $op eq '&'))) {
if ($ctx !~ /[WEBC]x./ && $ca !~ /(?:\)|!|~|\*|-|\&|\||\+\+|\-\-|\{)$/) {
- ERROR("need space before that '$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 =~ /WxB/ || ($ctx =~ /Wx./ && $cc =~ /^;/)) {
- ERROR("no space before that '$op' $at\n" . $hereptr);
+ if ($ctx =~ /Wx[BE]/ ||
+ ($ctx =~ /Wx./ && $cc =~ /^;/)) {
+ ERROR("space prohibited before that '$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
$op eq '%')
{
- if ($ctx !~ /VxV|WxW|VxE|WxE|VxO|Cx.|.xC/) {
+ if ($ctx =~ /Wx[^WCE]|[^WCE]xW/) {
ERROR("need consistent spacing around '$op' $at\n" .
$hereptr);
}
# Ignore email addresses <foo@bar>
if (!($op eq '<' && $cb =~ /$;\S+\@\S+>/) &&
!($op eq '>' && $cb =~ /<\S+\@\S+$;/)) {
- ERROR("need spaces around that '$op' $at\n" . $hereptr);
+ ERROR("spaces required around that '$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" . $herecurr);
}
# check spacing on paretheses
if ($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);
+ ERROR("space prohibited before that close parenthesis ')'\n" . $herecurr);
}
#goto labels aren't indented, allow a single space however
# Need a space before open parenthesis after if, while etc
if ($line=~/\b(if|while|for|switch)\(/) {
- ERROR("need a space before the open parenthesis '('\n" . $herecurr);
+ ERROR("space required before the open parenthesis '('\n" . $herecurr);
}
# Check for illegal assignment in if conditional.
if ($line =~ /\bif\s*\(/) {
- my ($s, $c) = ctx_statement_block($linenr, $realcnt, 0);
+ my ($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) && $s !~ /^\s*({|;|)\s*\\*\s*$/) {
+ if (length($c) && $s !~ /^\s*({|;|)\s*\\*\s*$/ &&
+ $c !~ /^.\#\s*if/)
+ {
ERROR("trailing statements should be on next line\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), '');
$s =~ s/\n.*//g;
if ($s =~ /^\s*;/) {
#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" .
+ if (-f $checkfile && $1 ne 'irq') {
+
WARN("Use #include <linux/$1.h> instead of <asm/$1.h>\n" .
$herecurr);
}
}
if ($#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";
WARN("kfree(NULL) is safe this check is probabally 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 probabally not required\n" . $hereprev);
+ }
+ }
# warn about #ifdefs in C files
# if ($line =~ /^.#\s*if(|n)def/ && ($realfile =~ /\.c$/)) {
}
# 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" . $herecurr);
}
# check for new externs in .c files.
- if ($line =~ /^.\s*extern\s/ && ($realfile =~ /\.c$/)) {
+ if ($realfile =~ /\.c$/ && defined $stat &&
+ $stat =~ /^.\s*(?:extern\s+)?$Type\s+$Ident(\s*)\(/s)
+ {
+ my $paren_space = $1;
+
+ my $s = $stat;
+ if (defined $cond) {
+ substr($s, 0, length($cond), '');
+ }
+ if ($s =~ /^\s*;/) {
+ 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" . $herecurr);
+ }
+
+# use of NR_CPUS is usually wrong
+# ignore definitions of NR_CPUS and usage to define arrays as likely right
+ if ($line =~ /\bNR_CPUS\b/ &&
+ $line !~ /^.#\s*if\b.*\bNR_CPUS\b/ &&
+ $line !~ /^.#\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] - $-[1]);
+ if ($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.openpandora.org / pandora-kernel.git / blobdiff