my $P = $0;
$P =~ s@.*/@@g;
-my $V = '0.12';
+my $V = '0.16';
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;
my $check = 0;
my $summary = 1;
my $mailback = 0;
+my $summary_file = 0;
my $root;
+my %debug;
GetOptions(
'q|quiet+' => \$quiet,
'tree!' => \$tree,
'signoff!' => \$chk_signoff,
'patch!' => \$chk_patch,
- 'test-type!' => \$tst_type,
'emacs!' => \$emacs,
'terse!' => \$terse,
'file!' => \$file,
'root=s' => \$root,
'summary!' => \$summary,
'mailback!' => \$mailback,
+ 'summary-file!' => \$summary_file,
+
+ 'debug=s' => \%debug,
+ 'test-type!' => \$tst_type,
+ 'test-only=s' => \$tst_only,
) or exit;
my $exit = 0;
if ($#ARGV < 0) {
print "usage: $P [options] patchfile\n";
print "version: $V\n";
- print "options: -q => quiet\n";
- print " --no-tree => run without a kernel tree\n";
- print " --terse => one line per report\n";
- print " --emacs => emacs compile window format\n";
- print " --file => check a source file\n";
- print " --strict => enable more subjective tests\n";
- print " --root => path to the kernel tree root\n";
+ print "options: -q => quiet\n";
+ print " --no-tree => run without a kernel tree\n";
+ print " --terse => one line per report\n";
+ print " --emacs => emacs compile window format\n";
+ print " --file => check a source file\n";
+ print " --strict => enable more subjective tests\n";
+ print " --root => path to the kernel tree root\n";
+ print " --no-summary => suppress the per-file summary\n";
+ print " --summary-file => include the filename in summary\n";
exit(1);
}
+my $dbg_values = 0;
+my $dbg_possible = 0;
+for my $key (keys %debug) {
+ eval "\${dbg_$key} = '$debug{$key}';"
+}
+
if ($terse) {
$emacs = 1;
$quiet++;
__iomem|
__must_check|
__init_refok|
- __kprobes|
- fastcall
+ __kprobes
}x;
our $Attribute = qr{
const|
our $Operators = qr{
<=|>=|==|!=|
=>|->|<<|>>|<|>|!|~|
- &&|\|\||,|\^|\+\+|--|&|\||\+|-|\*|\/
+ &&|\|\||,|\^|\+\+|--|&|\||\+|-|\*|\/|%
}x;
our $NonptrType;
\b
(?:const\s+)?
(?:unsigned\s+)?
- $all
+ (?:
+ $all|
+ (?:typeof|__typeof__)\s*\(\s*\**\s*$Ident\s*\)
+ )
(?:\s+$Sparse|\s+const)*
\b
}x;
$Type = qr{
\b$NonptrType\b
(?:\s*\*+\s*const|\s*\*+|(?:\s*\[\s*\])+)?
- (?:\s+$Sparse|\s+$Attribute)*
+ (?:\s+$Inline|\s+$Sparse|\s+$Attribute)*
}x;
$Declare = qr{(?:$Storage\s+)?$Type};
}
}
my @rawlines = ();
+my @lines = ();
+my $vname;
for my $filename (@ARGV) {
if ($file) {
open(FILE, "diff -u /dev/null $filename|") ||
open(FILE, "<$filename") ||
die "$P: $filename: open failed - $!\n";
}
+ if ($filename eq '-') {
+ $vname = 'Your patch';
+ } else {
+ $vname = $filename;
+ }
while (<FILE>) {
chomp;
push(@rawlines, $_);
}
close(FILE);
- if (!process($filename, @rawlines)) {
+ if (!process($filename)) {
$exit = 1;
}
@rawlines = ();
+ @lines = ();
}
exit($exit);
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;
+
+ # 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, $off, 2, "$;$;");
+ $off++;
+ next;
+ }
+ if (substr($line, $off, 2) eq $sanitise_quote) {
+ $sanitise_quote = '';
+ substr($res, $off, 2, "$;$;");
+ $off++;
+ next;
+ }
+
+ # A \ in a string means ignore the next character.
+ if (($sanitise_quote eq "'" || $sanitise_quote eq '"') &&
+ $c eq "\\") {
+ substr($res, $off, 2, 'XX');
+ $off++;
+ next;
+ }
+ # Regular quotes.
+ if ($c eq "'" || $c eq '"') {
+ if ($sanitise_quote eq '') {
+ $sanitise_quote = $c;
- foreach my $c (split(//, $line)) {
- if ($l ne "\\" && ($c eq "'" || $c eq '"')) {
- if ($quote eq '') {
- $quote = $c;
- $res .= $c;
- $l = $c;
+ substr($res, $off, 1, $c);
next;
- } elsif ($quote eq $c) {
- $quote = '';
+ } elsif ($sanitise_quote eq $c) {
+ $sanitise_quote = '';
}
}
- if ($quote && $c ne "\t") {
- $res .= "X";
+
+ #print "SQ:$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 {
- $res .= $c;
+ substr($res, $off, 1, $c);
}
+ }
+
+ # The pathname on a #include may be surrounded by '<' and '>'.
+ if ($res =~ /^.#\s*include\s+\<(.*)\>/) {
+ my $clean = 'X' x length($1);
+ $res =~ s@\<.*\>@<$clean>@;
- $l = $c;
+ # The whole of a #error is a string.
+ } elsif ($res =~ /^.#\s*(?:error|warning)\s+(.*)\b/) {
+ my $clean = 'X' x length($1);
+ $res =~ s@(#\s*(?:error|warning)\s+).*@$1$clean@;
}
return $res;
my $blk = '';
my $soff = $off;
my $coff = $off - 1;
+ my $coff_set = 0;
+
+ my $loff = 0;
my $type = '';
my $level = 0;
+ my $p;
my $c;
my $len = 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; $line++) {
- next if ($rawlines[$line] =~ /^-/);
+ next if ($lines[$line] =~ /^-/);
$remain--;
- $blk .= sanitise_line($rawlines[$line]) . "\n";
+ $loff = $len;
+ $blk .= $lines[$line] . "\n";
$len = length($blk);
$line++;
last;
}
# Bail if there is no further context.
#warn "CSB: blk<$blk> off<$off> len<$len>\n";
- if ($off == $len) {
+ if ($off >= $len) {
last;
}
}
+ $p = $c;
$c = substr($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 && $c eq ';') {
last;
}
+ # An else is really a conditional as long as its not else if
+ if ($level == 0 && $coff_set == 0 &&
+ (!defined($p) || $p =~ /(?:\s|\}|\+)/) &&
+ $remainder =~ /^(else)(?:\s|{)/ &&
+ $remainder !~ /^else\s+if\b/) {
+ $coff = $off + length($1) - 1;
+ $coff_set = 1;
+ #warn "CSB: mark coff<$coff> soff<$soff> 1<$1>\n";
+ #warn "[" . substr($blk, $soff, $coff - $soff + 1) . "]\n";
+ }
+
if (($type eq '' || $type eq '(') && $c eq '(') {
$level++;
$type = '(';
if ($level == 0 && $coff < $soff) {
$coff = $off;
+ $coff_set = 1;
+ #warn "CSB: mark coff<$coff>\n";
}
}
if (($type eq '' || $type eq '{') && $c eq '{') {
}
$off++;
}
+ if ($off == $len) {
+ $line++;
+ $remain--;
+ }
my $statement = substr($blk, $soff, $off - $soff + 1);
my $condition = substr($blk, $soff, $coff - $soff + 1);
#warn "STATEMENT<$statement>\n";
#warn "CONDITION<$condition>\n";
- return ($statement, $condition);
+ #print "coff<$coff> soff<$off> loff<$loff>\n";
+
+ return ($statement, $condition,
+ $line, $remain + 1, $off - $loff + 1, $level);
+}
+
+sub statement_lines {
+ my ($stmt) = @_;
+
+ # Strip the diff line prefixes and rip blank lines at start and end.
+ $stmt =~ s/(^|\n)./$1/g;
+ $stmt =~ s/^\s*//;
+ $stmt =~ s/\s*$//;
+
+ my @stmt_lines = ($stmt =~ /\n/g);
+
+ return $#stmt_lines + 2;
+}
+
+sub statement_rawlines {
+ my ($stmt) = @_;
+
+ my @stmt_lines = ($stmt =~ /\n/g);
+
+ return $#stmt_lines + 2;
+}
+
+sub statement_block_size {
+ my ($stmt) = @_;
+
+ $stmt =~ s/(^|\n)./$1/g;
+ $stmt =~ s/^\s*{//;
+ $stmt =~ s/}\s*$//;
+ $stmt =~ s/^\s*//;
+ $stmt =~ s/\s*$//;
+
+ my @stmt_lines = ($stmt =~ /\n/g);
+ my @stmt_statements = ($stmt =~ /;/g);
+
+ my $stmt_lines = $#stmt_lines + 2;
+ my $stmt_statements = $#stmt_statements + 1;
+
+ if ($stmt_lines > $stmt_statements) {
+ return $stmt_lines;
+ } else {
+ return $stmt_statements;
+ }
+}
+
+sub ctx_statement_full {
+ my ($linenr, $remain, $off) = @_;
+ my ($statement, $condition, $level);
+
+ my (@chunks);
+
+ # Grab the first conditional/block pair.
+ ($statement, $condition, $linenr, $remain, $off, $level) =
+ ctx_statement_block($linenr, $remain, $off);
+ #print "F: c<$condition> s<$statement> remain<$remain>\n";
+ push(@chunks, [ $condition, $statement ]);
+ if (!($remain > 0 && $condition =~ /^\s*(?:\n[+-])?\s*(?:if|else|do)\b/s)) {
+ return ($level, $linenr, @chunks);
+ }
+
+ # Pull in the following conditional/block pairs and see if they
+ # could continue the statement.
+ for (;;) {
+ ($statement, $condition, $linenr, $remain, $off, $level) =
+ ctx_statement_block($linenr, $remain, $off);
+ #print "C: c<$condition> s<$statement> remain<$remain>\n";
+ last if (!($remain > 0 && $condition =~ /^(?:\s*\n[+-])*\s*(?:else|do)\b/s));
+ #print "C: push\n";
+ push(@chunks, [ $condition, $statement ]);
+ }
+
+ return ($level, $linenr, @chunks);
}
sub ctx_block_get {
return $res;
}
+my $av_preprocessor = 0;
+my $av_pending;
+my @av_paren_type;
+
+sub annotate_reset {
+ $av_preprocessor = 0;
+ $av_pending = '_';
+ @av_paren_type = ('E');
+}
+
sub annotate_values {
my ($stream, $type) = @_;
my $res;
my $cur = $stream;
- my $debug = 0;
-
- print "$stream\n" if ($debug);
-
- ##my $type = 'N';
- my $pos = 0;
- my $preprocessor = 0;
- my $paren = 0;
- my @paren_type;
+ print "$stream\n" if ($dbg_values > 1);
while (length($cur)) {
- print " <$type> " if ($debug);
+ @av_paren_type = ('E') if ($#av_paren_type < 0);
+ print " <" . join('', @av_paren_type) .
+ "> <$type> " if ($dbg_values > 1);
if ($cur =~ /^(\s+)/o) {
- print "WS($1)\n" if ($debug);
- if ($1 =~ /\n/ && $preprocessor) {
- $preprocessor = 0;
- $type = 'N';
+ print "WS($1)\n" if ($dbg_values > 1);
+ if ($1 =~ /\n/ && $av_preprocessor) {
+ $type = pop(@av_paren_type);
+ $av_preprocessor = 0;
}
} elsif ($cur =~ /^($Type)/) {
- print "DECLARE($1)\n" if ($debug);
+ print "DECLARE($1)\n" if ($dbg_values > 1);
$type = 'T';
} elsif ($cur =~ /^(#\s*define\s*$Ident)(\(?)/o) {
- print "DEFINE($1)\n" if ($debug);
- $preprocessor = 1;
- $paren_type[$paren] = 'N';
+ print "DEFINE($1)\n" if ($dbg_values > 1);
+ $av_preprocessor = 1;
+ $av_pending = 'N';
+
+ } elsif ($cur =~ /^(#\s*(?:ifdef|ifndef|if))/o) {
+ print "PRE_START($1)\n" if ($dbg_values > 1);
+ $av_preprocessor = 1;
+
+ push(@av_paren_type, $type);
+ push(@av_paren_type, $type);
+ $type = 'N';
- } elsif ($cur =~ /^(#\s*(?:ifdef|ifndef|if|else|endif))/o) {
- print "PRE($1)\n" if ($debug);
- $preprocessor = 1;
+ } elsif ($cur =~ /^(#\s*(?:else|elif))/o) {
+ print "PRE_RESTART($1)\n" if ($dbg_values > 1);
+ $av_preprocessor = 1;
+
+ push(@av_paren_type, $av_paren_type[$#av_paren_type]);
+
+ $type = 'N';
+
+ } elsif ($cur =~ /^(#\s*(?:endif))/o) {
+ print "PRE_END($1)\n" if ($dbg_values > 1);
+
+ $av_preprocessor = 1;
+
+ # Assume all arms of the conditional end as this
+ # one does, and continue as if the #endif was not here.
+ pop(@av_paren_type);
+ push(@av_paren_type, $type);
$type = 'N';
} elsif ($cur =~ /^(\\\n)/o) {
- print "PRECONT($1)\n" if ($debug);
+ print "PRECONT($1)\n" if ($dbg_values > 1);
} elsif ($cur =~ /^(sizeof)\s*(\()?/o) {
- print "SIZEOF($1)\n" if ($debug);
+ print "SIZEOF($1)\n" if ($dbg_values > 1);
if (defined $2) {
- $paren_type[$paren] = 'V';
+ $av_pending = 'V';
}
$type = 'N';
- } elsif ($cur =~ /^(if|while|typeof|for)\b/o) {
- print "COND($1)\n" if ($debug);
- $paren_type[$paren] = 'N';
+ } elsif ($cur =~ /^(if|while|typeof|__typeof__|for)\b/o) {
+ print "COND($1)\n" if ($dbg_values > 1);
+ $av_pending = 'N';
$type = 'N';
} elsif ($cur =~/^(return|case|else)/o) {
- print "KEYWORD($1)\n" if ($debug);
+ print "KEYWORD($1)\n" if ($dbg_values > 1);
$type = 'N';
} elsif ($cur =~ /^(\()/o) {
- print "PAREN('$1')\n" if ($debug);
- $paren++;
+ print "PAREN('$1')\n" if ($dbg_values > 1);
+ push(@av_paren_type, $av_pending);
+ $av_pending = '_';
$type = 'N';
} elsif ($cur =~ /^(\))/o) {
- $paren-- if ($paren > 0);
- if (defined $paren_type[$paren]) {
- $type = $paren_type[$paren];
- undef $paren_type[$paren];
- print "PAREN('$1') -> $type\n" if ($debug);
+ my $new_type = pop(@av_paren_type);
+ if ($new_type ne '_') {
+ $type = $new_type;
+ print "PAREN('$1') -> $type\n"
+ if ($dbg_values > 1);
} else {
- print "PAREN('$1')\n" if ($debug);
+ print "PAREN('$1')\n" if ($dbg_values > 1);
}
} elsif ($cur =~ /^($Ident)\(/o) {
- print "FUNC($1)\n" if ($debug);
- $paren_type[$paren] = 'V';
+ print "FUNC($1)\n" if ($dbg_values > 1);
+ $av_pending = 'V';
} elsif ($cur =~ /^($Ident|$Constant)/o) {
- print "IDENT($1)\n" if ($debug);
+ print "IDENT($1)\n" if ($dbg_values > 1);
$type = 'V';
} elsif ($cur =~ /^($Assignment)/o) {
- print "ASSIGN($1)\n" if ($debug);
+ print "ASSIGN($1)\n" if ($dbg_values > 1);
$type = 'N';
- } elsif ($cur =~ /^(;|{|}|\?|:|\[)/o) {
- print "END($1)\n" if ($debug);
+ } elsif ($cur =~/^(;|{|})/) {
+ print "END($1)\n" if ($dbg_values > 1);
+ $type = 'E';
+
+ } elsif ($cur =~ /^(;|\?|:|\[)/o) {
+ print "CLOSE($1)\n" if ($dbg_values > 1);
$type = 'N';
} elsif ($cur =~ /^($Operators)/o) {
- print "OP($1)\n" if ($debug);
+ print "OP($1)\n" if ($dbg_values > 1);
if ($1 ne '++' && $1 ne '--') {
$type = 'N';
}
} elsif ($cur =~ /(^.)/o) {
- print "C($1)\n" if ($debug);
+ print "C($1)\n" if ($dbg_values > 1);
}
if (defined $1) {
$cur = substr($cur, length($1));
}
sub possible {
- my ($possible) = @_;
+ my ($possible, $line) = @_;
#print "CHECK<$possible>\n";
if ($possible !~ /^(?:$Storage|$Type|DEFINE_\S+)$/ &&
$possible ne 'struct' && $possible ne 'enum' &&
$possible ne 'case' && $possible ne 'else' &&
$possible ne 'typedef') {
- #print "POSSIBLE<$possible>\n";
+ warn "POSSIBLE: $possible ($line)\n" if ($dbg_possible);
push(@typeList, $possible);
build_types();
}
my $prefix = '';
-my @report = ();
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(@report, $line);
+ push(our @report, $line);
+
+ return 1;
}
sub report_dump {
- @report;
+ 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 process {
my $filename = shift;
- my @lines = @_;
my $linenr=0;
my $prevline="";
+ my $prevrawline="";
my $stashline="";
+ my $stashrawline="";
my $length;
my $indent;
my $signoff = 0;
my $is_patch = 0;
+ our @report = ();
our $cnt_lines = 0;
our $cnt_error = 0;
our $cnt_warn = 0;
my $realcnt = 0;
my $here = '';
my $in_comment = 0;
+ my $comment_edge = 0;
my $first_line = 0;
- my $prev_values = 'N';
+ my $prev_values = 'E';
+ # suppression flags
+ 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;
- foreach my $line (@lines) {
- if ($line=~/^\+\+\+\s+(\S+)/) {
+
+ sanitise_line_reset();
+ my $line;
+ foreach my $rawline (@rawlines) {
+ $linenr++;
+ $line = $rawline;
+
+ if ($rawline=~/^\+\+\+\s+(\S+)/) {
$setup_docs = 0;
if ($1 =~ m@Documentation/kernel-parameters.txt$@) {
$setup_docs = 1;
}
- next;
+ #next;
+ }
+ if ($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; $ln < ($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) {
+ # Standardise the strings and chars within the input to
+ # simplify matching.
+ $line = sanitise_line($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 = $line;
+ my $rawline = $rawlines[$linenr - 1];
-
-#extract the filename as it passes
- if ($line=~/^\+\+\+\s+(\S+)/) {
- $realfile=$1;
- $realfile =~ s@^[^/]*/@@;
- $in_comment = 0;
- next;
- }
#extract the line range in the file after the patch is applied
if ($line=~/^\@\@ -\d+(?:,\d+)? \+(\d+)(,(\d+))? \@\@/) {
$is_patch = 1;
$first_line = $linenr + 1;
- $in_comment = 0;
$realline=$1-1;
if (defined $2) {
$realcnt=$3+1;
} else {
$realcnt=1+1;
}
- $prev_values = 'N';
+ annotate_reset();
+ $prev_values = 'E';
+
+ %suppress_ifbraces = ();
next;
- }
# track the line number as we move through the hunk, note that
# new versions of GNU diff omit the leading space on completely
# blank context lines so we need to count that too.
- if ($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) = ($lines[$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 $line =~ m@^.\s*\*@) {
- $in_comment = 1;
- }
-
- # Find the last comment edge on _this_ line.
- while (($line =~ m@(/\*|\*/)@g)) {
- if ($1 eq '/*') {
- $in_comment = 1;
- } else {
- $in_comment = 0;
- }
- }
-
# Measure the line length and indent.
- ($length, $indent) = line_stats($line);
+ ($length, $indent) = line_stats($rawline);
# Track the previous line.
($prevline, $stashline) = ($stashline, $line);
($previndent, $stashindent) = ($stashindent, $indent);
+ ($prevrawline, $stashrawline) = ($stashrawline, $rawline);
+
+ #warn "line<$line>\n";
} elsif ($realcnt == 1) {
$realcnt--;
}
#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$line\n";
- my $herecurr = "$here\n$line\n";
- my $hereprev = "$here\n$prevline\n$line\n";
+ 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 =~ /^$/ || $line =~ /^\+/) &&
- !($line =~ m/^(
+ !($rawline =~ m/^(
[\x09\x0A\x0D\x20-\x7E] # ASCII
| [\xC2-\xDF][\x80-\xBF] # non-overlong 2-byte
| \xE0[\xA0-\xBF][\x80-\xBF] # excluding overlongs
| [\xF1-\xF3][\x80-\xBF]{3} # planes 4-15
| \xF4[\x80-\x8F][\x80-\xBF]{2} # plane 16
)*$/x )) {
- ERROR("Invalid UTF-8\n" . $herecurr);
+ ERROR("Invalid UTF-8, patch and commit message should be encoded in UTF-8\n" . $herecurr);
}
#ignore lines being removed
#trailing whitespace
if ($line =~ /^\+.*\015/) {
- my $herevet = "$here\n" . cat_vet($line) . "\n";
+ my $herevet = "$here\n" . cat_vet($rawline) . "\n";
ERROR("DOS line endings\n" . $herevet);
- } elsif ($line =~ /^\+.*\S\s+$/ || $line =~ /^\+\s+$/) {
- my $herevet = "$here\n" . cat_vet($line) . "\n";
+ } elsif ($rawline =~ /^\+.*\S\s+$/ || $rawline =~ /^\+\s+$/) {
+ my $herevet = "$here\n" . cat_vet($rawline) . "\n";
ERROR("trailing whitespace\n" . $herevet);
}
#80 column limit
- if ($line =~ /^\+/ && !($prevline=~/\/\*\*/) && $length > 80) {
+ if ($line =~ /^\+/ && !($prevrawline=~/\/\*\*/) && $length > 80) {
WARN("line over 80 characters\n" . $herecurr);
}
# at the beginning of a line any tabs must come first and anything
# more than 8 must use tabs.
- if ($line=~/^\+\s* \t\s*\S/ or $line=~/^\+\s* \s*/) {
- my $herevet = "$here\n" . cat_vet($line) . "\n";
+ if ($rawline =~ /^\+\s* \t\s*\S/ ||
+ $rawline =~ /^\+\s* \s*/) {
+ my $herevet = "$here\n" . cat_vet($rawline) . "\n";
ERROR("use tabs not spaces\n" . $herevet);
}
-# Remove comments from the line before processing.
- my $comment_edge = ($line =~ s@/\*.*\*/@@g) +
- ($line =~ s@/\*.*@@) +
- ($line =~ s@^(.).*\*/@$1@);
+# check for RCS/CVS revision markers
+ if ($rawline =~ /^\+.*\$(Revision|Log|Id)(?:\$|)/) {
+ WARN("CVS style keyword markers, these will _not_ be updated\n". $herecurr);
+ }
+
+# Check for potential 'bare' types
+ if ($realcnt) {
+ my ($s, $c) = ctx_statement_block($linenr, $realcnt, 0);
+ $s =~ s/\n./ /g;
+ $s =~ s/{.*$//;
-# 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 && $in_comment);
+ # Ignore goto labels.
+ if ($s =~ /$Ident:\*$/) {
-# Standardise the strings and chars within the input to simplify matching.
- $line = sanitise_line($line);
+ # Ignore functions being called
+ } elsif ($s =~ /^.\s*$Ident\s*\(/) {
-# Check for potential 'bare' types
- if ($realcnt &&
- $line !~ /$Ident:\s*$/ &&
- ($line =~ /^.\s*$Ident\s*\(\*+\s*$Ident\)\s*\(/ ||
- $line !~ /^.\s*$Ident\s*\(/)) {
# definitions in global scope can only start with types
- if ($line =~ /^.(?:$Storage\s+)?(?:$Inline\s+)?(?:const\s+)?($Ident)\b/) {
- possible($1);
+ } elsif ($s =~ /^.(?:$Storage\s+)?(?:$Inline\s+)?(?:const\s+)?($Ident)\b/) {
+ possible($1, $s);
# declarations always start with types
- } elsif ($prev_values eq 'N' && $line =~ /^.\s*(?:$Storage\s+)?($Ident)\b\s*\**\s*$Ident\s*(?:;|=)/) {
- possible($1);
+ } elsif ($prev_values eq 'E' && $s =~ /^.\s*(?:$Storage\s+)?(?:const\s+)?($Ident)\b(:?\s+$Sparse)?\s*\**\s*$Ident\s*(?:;|=|,)/) {
+ possible($1, $s);
+ }
# any (foo ... *) is a pointer cast, and foo is a type
- } elsif ($line =~ /\(($Ident)(?:\s+$Sparse)*\s*\*+\s*\)/) {
- possible($1);
+ while ($s =~ /\(($Ident)(?:\s+$Sparse)*\s*\*+\s*\)/g) {
+ possible($1, $s);
}
# Check for any sort of function declaration.
# int foo(something bar, other baz);
# void (*store_gdt)(x86_descr_ptr *);
- if ($prev_values eq 'N' && $line =~ /^(.(?:(?:$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*)\(/) {
my ($name_len) = length($1);
- my ($level, @ctx) = ctx_statement_level($linenr, $realcnt, $name_len);
- my $ctx = join("\n", @ctx);
- $ctx =~ s/\n.//;
- substr($ctx, 0, $name_len + 1) = '';
+ my $ctx = $s;
+ substr($ctx, 0, $name_len + 1, '');
$ctx =~ s/\)[^\)]*$//;
+
for my $arg (split(/\s*,\s*/, $ctx)) {
if ($arg =~ /^(?:const\s+)?($Ident)(?:\s+$Sparse)*\s*\**\s*(:?\b$Ident)?$/ || $arg =~ /^($Ident)$/) {
- possible($1);
+ possible($1, $s);
}
}
}
# if/while/etc brace do not go on next line, unless defining a do while loop,
# or if that brace on the next line is for something else
- if ($line =~ /\b(?:(if|while|for|switch)\s*\(|do\b|else\b)/ && $line !~ /^.#/) {
+ if ($line =~ /(.*)\b((?:if|while|for|switch)\s*\(|do\b|else\b)/ && $line !~ /^.#/) {
+ my $pre_ctx = "$1$2";
+
my ($level, @ctx) = ctx_statement_level($linenr, $realcnt, 0);
my $ctx_ln = $linenr + $#ctx + 1;
my $ctx_cnt = $realcnt - $#ctx - 1;
my $ctx = join("\n", @ctx);
+ ##warn "realcnt<$realcnt> ctx_cnt<$ctx_cnt>\n";
+
# Skip over any removed lines in the context following statement.
- while ($ctx_cnt > 0 && $lines[$ctx_ln - 1] =~ /^-/) {
+ while (defined($lines[$ctx_ln - 1]) && $lines[$ctx_ln - 1] =~ /^-/) {
$ctx_ln++;
- $ctx_cnt--;
}
- ##warn "line<$line>\nctx<$ctx>\nnext<$lines[$ctx_ln - 1]>";
+ ##warn "pre<$pre_ctx>\nline<$line>\nctx<$ctx>\nnext<$lines[$ctx_ln - 1]>\n";
- if ($ctx !~ /{\s*/ && $ctx_cnt > 0 && $lines[$ctx_ln - 1] =~ /^\+\s*{/) {
- ERROR("That open brace { should be on the previous line\n" .
+ if ($ctx !~ /{\s*/ && defined($lines[$ctx_ln -1]) && $lines[$ctx_ln - 1] =~ /^\+\s*{/) {
+ ERROR("that open brace { should be on the previous line\n" .
"$here\n$ctx\n$lines[$ctx_ln - 1]");
}
- if ($level == 0 && $ctx =~ /\)\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]");
}
}
my $opline = $line; $opline =~ s/^./ /;
my $curr_values = annotate_values($opline . "\n", $prev_values);
$curr_values = $prev_values . $curr_values;
- #warn "--> $opline\n";
- #warn "--> $curr_values ($prev_values)\n";
+ if ($dbg_values) {
+ my $outline = $opline; $outline =~ s/\t/ /g;
+ print "$linenr > .$outline\n";
+ print "$linenr > $curr_values\n";
+ }
$prev_values = substr($curr_values, -1);
#ignore lines not being added
# 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);
}
#
ERROR("malformed #include filename\n" .
$herecurr);
}
- # Sanitise this special form of string.
- $path = 'X' x length($path);
- $line =~ s{\<.*\>}{<$path>};
}
# no C99 // comments
if (($prevline !~ /^}/) &&
($prevline !~ /^\+}/) &&
($prevline !~ /^ }/) &&
- ($prevline !~ /\b\Q$name\E(?:\s+$Attribute)?\s*(?:;|=)/)) {
+ ($prevline !~ /^.DECLARE_$Ident\(\Q$name\E\)/) &&
+ ($prevline !~ /^.LIST_HEAD\(\Q$name\E\)/) &&
+ ($prevline !~ /\b\Q$name\E(?:\s+$Attribute)?\s*(?:;|=|\[)/)) {
WARN("EXPORT_SYMBOL(foo); should immediately follow its function/variable\n" . $herecurr);
}
}
# }
if ($line =~ /\bLINUX_VERSION_CODE\b/) {
- WARN("LINUX_VERSION_CODE should be avoided, code should be for the version to which it is merged" . $herecurr);
+ WARN("LINUX_VERSION_CODE should be avoided, code should be for the version to which it is merged\n" . $herecurr);
}
# printk should use KERN_* levels. Note that follow on printk's on the
# function brace can't be on same line, except for #defines of do while,
# or if closed on same line
- if (($line=~/$Type\s*[A-Za-z\d_]+\(.*\).* {/) and
+ if (($line=~/$Type\s*[A-Za-z\d_]+\(.*\).*\s{/) and
!($line=~/\#define.*do\s{/) and !($line=~/}/)) {
ERROR("open brace '{' following function declarations go on the next line\n" . $herecurr);
}
# check for spaces between functions and their parentheses.
while ($line =~ /($Ident)\s+\(/g) {
- if ($1 !~ /^(?:if|for|while|switch|return|volatile|__volatile__|__attribute__|format|__extension__|Copyright|case)$/ &&
- $line !~ /$Type\s+\(/ && $line !~ /^.\#\s*define\b/) {
- WARN("no space between function name and open parenthesis '('\n" . $herecurr);
+ my $name = $1;
+ my $ctx_before = substr($line, 0, $-[1]);
+ my $ctx = "$ctx_before$name";
+
+ # Ignore those directives where spaces _are_ permitted.
+ if ($name =~ /^(?:
+ if|for|while|switch|return|case|
+ volatile|__volatile__|
+ __attribute__|format|__extension__|
+ asm|__asm__)$/x)
+ {
+
+ # cpp #define statements have non-optional spaces, ie
+ # if there is a space between the name and the open
+ # parenthesis it is simply not a parameter group.
+ } elsif ($ctx_before =~ /^.\#\s*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 =~ /$Type$/) {
+
+ } else {
+ 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] =~ /(\[|\()$/);
$a = 'O' if ($elements[$n] eq '');
- $a = 'E' if ($elements[$n] eq '' && $n == 0);
+ $a = 'E' if ($ca =~ /^\s*$/);
my $op = $elements[$n + 1];
if (defined $elements[$n + 2]) {
$c = 'V' if ($elements[$n + 2] ne '');
$c = 'W' if ($elements[$n + 2] =~ /^\s/);
+ $c = 'C' if ($elements[$n + 2] =~ /^$;/);
$c = 'B' if ($elements[$n + 2] =~ /^(\)|\]|;)/);
$c = 'O' if ($elements[$n + 2] eq '');
$c = 'E' if ($elements[$n + 2] =~ /\s*\\$/);
$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)";
# print "UNARY: <$op_left$op_type $is_unary $a:$op:$c> <$ca:$op:$cc> <$unary_ctx>\n";
#}
+ # Ignore operators passed as parameters.
+ if ($op_type ne 'V' &&
+ $ca =~ /\s$/ && $cc =~ /^\s*,/) {
+
+# # Ignore comments
+# } elsif ($op =~ /^$;+$/) {
+
# ; should have either the end of line or a space or \ after it
- if ($op eq ';') {
- if ($ctx !~ /.x[WEB]/ && $cc !~ /^\\/ &&
- $cc !~ /^;/) {
- ERROR("need space after that '$op' $at\n" . $hereptr);
+ } elsif ($op eq ';') {
+ if ($ctx !~ /.x[WEBC]/ &&
+ $cc !~ /^\\/ && $cc !~ /^;/) {
+ ERROR("space required after that '$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 !~ /.xW|.xE/ && $cc !~ /^}/) {
- ERROR("need space after that '$op' $at\n" . $hereptr);
+ if ($ctx !~ /.x[WEC]/ && $cc !~ /^}/) {
+ ERROR("space required after that '$op' $at\n" . $hereptr);
}
# '*' as part of a type definition -- reported already.
# unary operator, or a cast
} elsif ($op eq '!' || $op eq '~' ||
($is_unary && ($op eq '*' || $op eq '-' || $op eq '&'))) {
- if ($ctx !~ /[WEB]x./ && $ca !~ /(?:\)|!|~|\*|-|\&|\||\+\+|\-\-|\{)$/) {
- ERROR("need space before that '$op' $at\n" . $hereptr);
+ if ($ctx !~ /[WEBC]x./ && $ca !~ /(?:\)|!|~|\*|-|\&|\||\+\+|\-\-|\{)$/) {
+ ERROR("space required before that '$op' $at\n" . $hereptr);
}
if ($ctx =~ /.xW/) {
- ERROR("no space after that '$op' $at\n" . $hereptr);
+ ERROR("space prohibited after that '$op' $at\n" . $hereptr);
}
# unary ++ and unary -- are allowed no space on one side.
} elsif ($op eq '++' or $op eq '--') {
- if ($ctx !~ /[WOB]x[^W]/ && $ctx !~ /[^W]x[WOBE]/) {
- ERROR("need space one side of that '$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./ && $cc =~ /^;/) {
- ERROR("no space before that '$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 '|' or
$op eq '+' or $op eq '-' or
- $op eq '*' or $op eq '/')
+ $op eq '*' or $op eq '/' or
+ $op eq '%')
{
- if ($ctx !~ /VxV|WxW|VxE|WxE|VxO/) {
+ if ($ctx =~ /Wx[^WCE]|[^WCE]xW/) {
ERROR("need consistent spacing around '$op' $at\n" .
$hereptr);
}
# All the others need spaces both sides.
- } elsif ($ctx !~ /[EW]x[WE]/) {
+ } elsif ($ctx !~ /[EWC]x[CWE]/) {
# Ignore email addresses <foo@bar>
if (!($op eq '<' && $cb =~ /$;\S+\@\S+>/) &&
!($op eq '>' && $cb =~ /<\S+\@\S+$;/)) {
- ERROR("need spaces around that '$op' $at\n" . $hereptr);
+ ERROR("spaces required around that '$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*\)/ &&
+ 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" . $herecurr);
}
# Check for illegal assignment in if conditional.
my ($s, $c) = ctx_statement_block($linenr, $realcnt, 0);
if ($c =~ /\bif\s*\(.*[^<>!=]=[^=].*/) {
- ERROR("do not use assignment in if condition ($c)\n" . $herecurr);
+ 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), '');
$s =~ s/\n.*//g;
-
- if (length($c) && $s !~ /^\s*({|;|\/\*.*\*\/)?\s*\\*\s*$/) {
+ $s =~ s/$;//g; # Remove any comments
+ if (length($c) && $s !~ /^\s*({|;|)\s*\\*\s*$/ &&
+ $c !~ /^.\#\s*if/)
+ {
ERROR("trailing statements should be on next line\n" . $herecurr);
}
}
+# Check for bitwise tests written as boolean
+ if ($line =~ /
+ (?:
+ (?:\[|\(|\&\&|\|\|)
+ \s*0[xX][0-9]+\s*
+ (?:\&\&|\|\|)
+ |
+ (?:\&\&|\|\|)
+ \s*0[xX][0-9]+\s*
+ (?:\&\&|\|\||\)|\])
+ )/x)
+ {
+ WARN("boolean test with hexadecimal, perhaps just 1 \& or \|?\n" . $herecurr);
+ }
+
# if and else should not have general statements after it
- if ($line =~ /^.\s*(?:}\s*)?else\b(.*)/ &&
- $1 !~ /^\s*(?:\sif|{|\\|$)/) {
- ERROR("trailing statements should be on next line\n" . $herecurr);
+ if ($line =~ /^.\s*(?:}\s*)?else\b(.*)/) {
+ my $s = $1;
+ $s =~ s/$;//g; # Remove any comments
+ if ($s !~ /^\s*(?:\sif|(?:{|)\s*\\?\s*$)/) {
+ ERROR("trailing statements should be on next line\n" . $herecurr);
+ }
}
# Check for }<nl>else {, these must be at the same
ERROR("else should follow close brace '}'\n" . $hereprev);
}
+ if ($prevline=~/}\s*$/ and $line=~/^.\s*while\s*/ and
+ $previndent == $indent) {
+ my ($s, $c) = ctx_statement_block($linenr, $realcnt, 0);
+
+ # Find out what is on the end of the line after the
+ # conditional.
+ substr($s, 0, length($c), '');
+ $s =~ s/\n.*//g;
+
+ if ($s =~ /^\s*;/) {
+ ERROR("while should follow close brace '}'\n" . $hereprev);
+ }
+ }
+
#studly caps, commented out until figure out how to distinguish between use of existing and adding new
# if (($line=~/[\w_][a-z\d]+[A-Z]/) and !($line=~/print/)) {
# print "No studly caps, use _\n";
if ($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" .
+
WARN("Use #include <linux/$1.h> instead of <asm/$1.h>\n" .
$herecurr);
}
}
# multi-statement macros should be enclosed in a do while loop, grab the
# first statement and ensure its the whole macro if its not enclosed
-# in a known goot container
+# in a known good container
if ($prevline =~ /\#define.*\\/ &&
$prevline !~/(?:do\s+{|\(\{|\{)/ &&
$line !~ /(?:do\s+{|\(\{|\{)/ &&
}
# check for redundant bracing round if etc
- if ($line =~ /\b(if|while|for|else)\b/) {
- # Locate the end of the opening statement.
- my @control = ctx_statement($linenr, $realcnt, 0);
- my $nr = $linenr + (scalar(@control) - 1);
- my $cnt = $realcnt - (scalar(@control) - 1);
-
- my $off = $realcnt - $cnt;
- #print "$off: line<$line>end<" . $lines[$nr - 1] . ">\n";
-
- # If this is is a braced statement group check it
- if ($lines[$nr - 1] =~ /{\s*$/) {
- my ($lvl, @block) = ctx_block_level($nr, $cnt);
-
- my $stmt = join("\n", @block);
- # Drop the diff line leader.
- $stmt =~ s/\n./\n/g;
- # Drop the code outside the block.
- $stmt =~ s/(^[^{]*){\s*//;
- my $before = $1;
- $stmt =~ s/\s*}([^}]*$)//;
- my $after = $1;
-
- #print "block<" . join(' ', @block) . "><" . scalar(@block) . ">\n";
- #print "stmt<$stmt>\n\n";
-
- # Count the newlines, if there is only one
- # then the block should not have {}'s.
- my @lines = ($stmt =~ /\n/g);
- #print "lines<" . scalar(@lines) . ">\n";
- if ($lvl == 0 && scalar(@lines) == 0 &&
- $stmt !~ /{/ && $stmt !~ /\bif\b/ &&
- $before !~ /}/ && $after !~ /{/) {
- my $herectx = "$here\n" . join("\n", @control, @block[1 .. $#block]) . "\n";
- shift(@block);
- WARN("braces {} are not necessary for single statement blocks\n" . $herectx);
+ if ($line =~ /(^.*)\bif\b/ && $1 !~ /else\s*$/) {
+ my ($level, $endln, @chunks) =
+ ctx_statement_full($linenr, $realcnt, 1);
+ #print "chunks<$#chunks> linenr<$linenr> endln<$endln> level<$level>\n";
+ #print "APW: <<$chunks[1][0]>><<$chunks[1][1]>>\n";
+ if ($#chunks > 0 && $level == 0) {
+ my $allowed = 0;
+ my $seen = 0;
+ my $herectx = $here . "\n";
+ my $ln = $linenr - 1;
+ for my $chunk (@chunks) {
+ my ($cond, $block) = @{$chunk};
+
+ # 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), '');
+
+ $seen++ if ($block =~ /^\s*{/);
+
+ #print "cond<$cond> block<$block> allowed<$allowed>\n";
+ if (statement_lines($cond) > 1) {
+ #print "APW: ALLOWED: cond<$cond>\n";
+ $allowed = 1;
+ }
+ if ($block =~/\b(?:if|for|while)\b/) {
+ #print "APW: ALLOWED: block<$block>\n";
+ $allowed = 1;
+ }
+ if (statement_block_size($block) > 1) {
+ #print "APW: ALLOWED: lines block<$block>\n";
+ $allowed = 1;
+ }
+ }
+ if ($seen && !$allowed) {
+ WARN("braces {} are not necessary for any arm of this statement\n" . $herectx);
}
}
}
+ if (!defined $suppress_ifbraces{$linenr - 1} &&
+ $line =~ /\b(if|while|for|else)\b/) {
+ my $allowed = 0;
+
+ # Check the pre-context.
+ if (substr($line, 0, $-[0]) =~ /(\}\s*)$/) {
+ #print "APW: ALLOWED: pre<$1>\n";
+ $allowed = 1;
+ }
+
+ my ($level, $endln, @chunks) =
+ ctx_statement_full($linenr, $realcnt, $-[0]);
+
+ # Check the condition.
+ my ($cond, $block) = @{$chunks[0]};
+ #print "CHECKING<$linenr> cond<$cond> block<$block>\n";
+ if (defined $cond) {
+ substr($block, 0, length($cond), '');
+ }
+ if (statement_lines($cond) > 1) {
+ #print "APW: ALLOWED: cond<$cond>\n";
+ $allowed = 1;
+ }
+ if ($block =~/\b(?:if|for|while)\b/) {
+ #print "APW: ALLOWED: block<$block>\n";
+ $allowed = 1;
+ }
+ if (statement_block_size($block) > 1) {
+ #print "APW: ALLOWED: lines block<$block>\n";
+ $allowed = 1;
+ }
+ # Check the post-context.
+ if (defined $chunks[1]) {
+ my ($cond, $block) = @{$chunks[1]};
+ if (defined $cond) {
+ substr($block, 0, length($cond), '');
+ }
+ if ($block =~ /^\s*\{/) {
+ #print "APW: ALLOWED: chunk-1 block<$block>\n";
+ $allowed = 1;
+ }
+ }
+ if ($level == 0 && $block =~ /^\s*\{/ && !$allowed) {
+ my $herectx = $here . "\n";;
+ my $end = $linenr + statement_rawlines($block) - 1;
+
+ for (my $ln = $linenr - 1; $ln < $end; $ln++) {
+ $herectx .= $rawlines[$ln] . "\n";;
+ }
+
+ WARN("braces {} are not necessary for single statement blocks\n" . $herectx);
+ }
+ }
# don't include deprecated include files (uses RAW line)
for my $inc (@dep_includes) {
if ($line =~ /\*\s*\)\s*k[czm]alloc\b/) {
WARN("unnecessary cast may hide bugs, see http://c-faq.com/malloc/mallocnocast.html\n" . $herecurr);
}
+
+# check for gcc specific __FUNCTION__
+ if ($line =~ /__FUNCTION__/) {
+ WARN("__func__ should be used instead of gcc specific __FUNCTION__\n" . $herecurr);
+ }
+
+# check for semaphores used as mutexes
+ if ($line =~ /\b(DECLARE_MUTEX|init_MUTEX)\s*\(/) {
+ WARN("mutexes are preferred for single holder semaphores\n" . $herecurr);
+ }
+# check for semaphores used as mutexes
+ if ($line =~ /\binit_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*define\s+NR_CPUS\s+/ &&
+ $line !~ /^.\s*$Declare\s.*\[[^\]]*NR_CPUS[^\]]*\]/)
+ {
+ WARN("usage of NR_CPUS is often wrong - consider using cpu_possible(), num_possible_cpus(), for_each_possible_cpu(), etc\n" . $herecurr);
+ }
+ }
+
+ # If we have no input at all, then there is nothing to report on
+ # so just keep quiet.
+ if ($#rawlines == -1) {
+ exit(0);
}
# In mailback mode only produce a report in the negative, for
}
print report_dump();
- if ($summary) {
+ if ($summary && !($clean == 1 && $quiet == 1)) {
+ print "$filename " if ($summary_file);
print "total: $cnt_error errors, $cnt_warn warnings, " .
(($check)? "$cnt_chk checks, " : "") .
"$cnt_lines lines checked\n";
}
if ($clean == 1 && $quiet == 0) {
- print "Your patch has no obvious style problems and is ready for submission.\n"
+ print "$vname has no obvious style problems and is ready for submission.\n"
}
if ($clean == 0 && $quiet == 0) {
- print "Your patch has style problems, please review. If any of these errors\n";
+ print "$vname has style problems, please review. If any of these errors\n";
print "are false positives report them to the maintainer, see\n";
print "CHECKPATCH in MAINTAINERS.\n";
}
+
return $clean;
}
git.openpandora.org / pandora-kernel.git / blobdiff