my $P = $0;
$P =~ s@.*/@@g;
-my $V = '0.13';
+my $V = '0.15';
use Getopt::Long qw(:config no_auto_abbrev);
my $check = 0;
my $summary = 1;
my $mailback = 0;
+my $summary_file = 0;
my $root;
my %debug;
GetOptions(
'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,
) 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);
}
__iomem|
__must_check|
__init_refok|
- __kprobes|
- fastcall
+ __kprobes
}x;
our $Attribute = qr{
const|
\b
(?:const\s+)?
(?:unsigned\s+)?
- $all
+ (?:
+ $all|
+ (?:typeof|__typeof__)\s*\(\s*\**\s*$Ident\s*\)
+ )
(?:\s+$Sparse|\s+const)*
\b
}x;
$exit = 1;
}
@rawlines = ();
+ @lines = ();
}
exit($exit);
}
# Clear out the comments.
- while ($res =~ m@(/\*.*?\*/)@) {
- substr($res, $-[1], $+[1] - $-[1]) = ' ' x ($+[1] - $-[1]);
+ while ($res =~ m@(/\*.*?\*/)@g) {
+ substr($res, $-[1], $+[1] - $-[1]) = $; x ($+[1] - $-[1]);
}
if ($res =~ m@(/\*.*)@) {
- substr($res, $-[1], $+[1] - $-[1]) = ' ' x ($+[1] - $-[1]);
+ substr($res, $-[1], $+[1] - $-[1]) = $; x ($+[1] - $-[1]);
}
if ($res =~ m@^.(.*\*/)@) {
- substr($res, $-[1], $+[1] - $-[1]) = ' ' x ($+[1] - $-[1]);
+ substr($res, $-[1], $+[1] - $-[1]) = $; x ($+[1] - $-[1]);
}
# The pathname on a #include may be surrounded by '<' and '>'.
my $soff = $off;
my $coff = $off - 1;
+ my $loff = 0;
+
my $type = '';
my $level = 0;
+ my $p;
my $c;
my $len = 0;
+
+ my $remainder;
while (1) {
#warn "CSB: blk<$blk>\n";
# If we are about to drop off the end, pull in more
for (; $remain > 0; $line++) {
next if ($lines[$line] =~ /^-/);
$remain--;
+ $loff = $len;
$blk .= $lines[$line] . "\n";
$len = length($blk);
$line++;
}
# Bail if there is no further context.
#warn "CSB: blk<$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";
# Statement ends at the ';' or a close '}' at the
last;
}
+ # An else is really a conditional as long as its not else if
+ if ($level == 0 && (!defined($p) || $p =~ /(?:\s|\})/) &&
+ $remainder =~ /(else)(?:\s|{)/ &&
+ $remainder !~ /else\s+if\b/) {
+ $coff = $off + length($1);
+ }
+
if (($type eq '' || $type eq '(') && $c eq '(') {
$level++;
$type = '(';
}
$off++;
}
+ if ($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, $condition);
+ #print "off<$off> loff<$loff>\n";
+
+ return ($statement, $condition,
+ $line, $remain + 1, $off - $loff + 1, $level);
+}
+
+sub statement_lines {
+ my ($stmt) = @_;
+
+ # Strip the diff line prefixes and rip blank lines at start and end.
+ $stmt =~ s/(^|\n)./$1/g;
+ $stmt =~ s/^\s*//;
+ $stmt =~ s/\s*$//;
+
+ my @stmt_lines = ($stmt =~ /\n/g);
+
+ return $#stmt_lines + 2;
+}
+
+sub statement_rawlines {
+ my ($stmt) = @_;
+
+ my @stmt_lines = ($stmt =~ /\n/g);
+
+ return $#stmt_lines + 2;
+}
+
+sub statement_block_size {
+ my ($stmt) = @_;
+
+ $stmt =~ s/(^|\n)./$1/g;
+ $stmt =~ s/^\s*{//;
+ $stmt =~ s/}\s*$//;
+ $stmt =~ s/^\s*//;
+ $stmt =~ s/\s*$//;
+
+ my @stmt_lines = ($stmt =~ /\n/g);
+ my @stmt_statements = ($stmt =~ /;/g);
+
+ my $stmt_lines = $#stmt_lines + 2;
+ my $stmt_statements = $#stmt_statements + 1;
+
+ if ($stmt_lines > $stmt_statements) {
+ return $stmt_lines;
+ } else {
+ return $stmt_statements;
+ }
+}
+
+sub ctx_statement_full {
+ my ($linenr, $remain, $off) = @_;
+ my ($statement, $condition, $level);
+
+ my (@chunks);
+
+ # Grab the first conditional/block pair.
+ ($statement, $condition, $linenr, $remain, $off, $level) =
+ ctx_statement_block($linenr, $remain, $off);
+ #print "F: c<$condition> s<$statement>\n";
+ push(@chunks, [ $condition, $statement ]);
+ if (!($remain > 0 && $condition =~ /^\s*(?:\n[+-])?\s*(?:if|else|do)\b/s)) {
+ return ($level, $linenr, @chunks);
+ }
+
+ # Pull in the following conditional/block pairs and see if they
+ # could continue the statement.
+ for (;;) {
+ ($statement, $condition, $linenr, $remain, $off, $level) =
+ ctx_statement_block($linenr, $remain, $off);
+ #print "C: c<$condition> s<$statement> remain<$remain>\n";
+ last if (!($remain > 0 && $condition =~ /^\s*(?:\n[+-])?\s*(?:else|do)\b/s));
+ #print "C: push\n";
+ push(@chunks, [ $condition, $statement ]);
+ }
+
+ return ($level, $linenr, @chunks);
}
sub ctx_block_get {
}
my $av_preprocessor = 0;
-my $av_paren = 0;
+my $av_pending;
my @av_paren_type;
sub annotate_reset {
$av_preprocessor = 0;
- $av_paren = 0;
- @av_paren_type = ();
+ $av_pending = '_';
+ @av_paren_type = ('E');
}
sub annotate_values {
print "$stream\n" if ($dbg_values > 1);
while (length($cur)) {
- print " <$type> " if ($dbg_values > 1);
+ print " <" . join('', @av_paren_type) .
+ "> <$type> " if ($dbg_values > 1);
if ($cur =~ /^(\s+)/o) {
print "WS($1)\n" if ($dbg_values > 1);
if ($1 =~ /\n/ && $av_preprocessor) {
+ $type = pop(@av_paren_type);
$av_preprocessor = 0;
- $type = 'N';
}
} elsif ($cur =~ /^($Type)/) {
} elsif ($cur =~ /^(#\s*define\s*$Ident)(\(?)/o) {
print "DEFINE($1)\n" if ($dbg_values > 1);
$av_preprocessor = 1;
- $av_paren_type[$av_paren] = 'N';
+ $av_pending = 'N';
- } elsif ($cur =~ /^(#\s*(?:ifdef|ifndef|if|else|elif|endif))/o) {
- print "PRE($1)\n" if ($dbg_values > 1);
+ } elsif ($cur =~ /^(#\s*(?:ifdef|ifndef|if))/o) {
+ print "PRE_START($1)\n" if ($dbg_values > 1);
$av_preprocessor = 1;
+
+ push(@av_paren_type, $type);
+ push(@av_paren_type, $type);
+ $type = 'N';
+
+ } elsif ($cur =~ /^(#\s*(?:else|elif))/o) {
+ print "PRE_RESTART($1)\n" if ($dbg_values > 1);
+ $av_preprocessor = 1;
+
+ push(@av_paren_type, $av_paren_type[$#av_paren_type]);
+
+ $type = 'N';
+
+ } elsif ($cur =~ /^(#\s*(?:endif))/o) {
+ print "PRE_END($1)\n" if ($dbg_values > 1);
+
+ $av_preprocessor = 1;
+
+ # Assume all arms of the conditional end as this
+ # one does, and continue as if the #endif was not here.
+ pop(@av_paren_type);
+ push(@av_paren_type, $type);
$type = 'N';
} elsif ($cur =~ /^(\\\n)/o) {
} elsif ($cur =~ /^(sizeof)\s*(\()?/o) {
print "SIZEOF($1)\n" if ($dbg_values > 1);
if (defined $2) {
- $av_paren_type[$av_paren] = 'V';
+ $av_pending = 'V';
}
$type = 'N';
- } elsif ($cur =~ /^(if|while|typeof|for)\b/o) {
+ } elsif ($cur =~ /^(if|while|typeof|__typeof__|for)\b/o) {
print "COND($1)\n" if ($dbg_values > 1);
- $av_paren_type[$av_paren] = 'N';
+ $av_pending = 'N';
$type = 'N';
} elsif ($cur =~/^(return|case|else)/o) {
} elsif ($cur =~ /^(\()/o) {
print "PAREN('$1')\n" if ($dbg_values > 1);
- $av_paren++;
+ push(@av_paren_type, $av_pending);
+ $av_pending = '_';
$type = 'N';
} elsif ($cur =~ /^(\))/o) {
- $av_paren-- if ($av_paren > 0);
- if (defined $av_paren_type[$av_paren]) {
- $type = $av_paren_type[$av_paren];
- undef $av_paren_type[$av_paren];
+ my $new_type = pop(@av_paren_type);
+ if ($new_type ne '_') {
+ $type = $new_type;
print "PAREN('$1') -> $type\n"
if ($dbg_values > 1);
} else {
} elsif ($cur =~ /^($Ident)\(/o) {
print "FUNC($1)\n" if ($dbg_values > 1);
- $av_paren_type[$av_paren] = 'V';
+ $av_pending = 'V';
} elsif ($cur =~ /^($Ident|$Constant)/o) {
print "IDENT($1)\n" if ($dbg_values > 1);
print "ASSIGN($1)\n" if ($dbg_values > 1);
$type = 'N';
- } elsif ($cur =~ /^(;|{|}|\?|:|\[)/o) {
+ } 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 =~ /^($Operators)/o) {
}
sub possible {
- my ($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') {
- warn "POSSIBLE: $possible\n" if ($dbg_possible);
+ warn "POSSIBLE: $possible ($line)\n" if ($dbg_possible);
push(@typeList, $possible);
build_types();
}
my $prefix = '';
-my @report = ();
sub report {
my $line = $prefix . $_[0];
$line = (split('\n', $line))[0] . "\n" if ($terse);
- push(@report, $line);
+ push(our @report, $line);
}
sub report_dump {
- @report;
+ our @report;
}
sub ERROR {
report("ERROR: $_[0]\n");
my $signoff = 0;
my $is_patch = 0;
+ our @report = ();
our $cnt_lines = 0;
our $cnt_error = 0;
our $cnt_warn = 0;
my $comment_edge = 0;
my $first_line = 0;
- my $prev_values = 'N';
+ my $prev_values = 'E';
+
+ # suppression flags
+ my $suppress_ifbraces = 0;
# Pre-scan the patch sanitizing the lines.
# Pre-scan the patch looking for any __setup documentation.
$realcnt=1+1;
}
annotate_reset();
- $prev_values = 'N';
+ $prev_values = 'E';
+
+ $suppress_ifbraces = $linenr - 1;
next;
}
}
# check for RCS/CVS revision markers
- if ($rawline =~ /\$(Revision|Log|Id)(?:\$|)/) {
+ 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;
+ $s =~ s/{.*$//;
+
# Ignore goto labels.
- if ($line =~ /$Ident:\*$/) {
+ if ($s =~ /$Ident:\*$/) {
# Ignore functions being called
- } elsif ($line =~ /^.\s*$Ident\s*\(/) {
+ } elsif ($s =~ /^.\s*$Ident\s*\(/) {
# definitions in global scope can only start with types
- } elsif ($line =~ /^.(?:$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+)?(?:const\s+)?($Ident)\b(:?\s+$Sparse)?\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, $s);
}
# any (foo ... *) is a pointer cast, and foo is a type
- while ($line =~ /\(($Ident)(?:\s+$Sparse)*\s*\*+\s*\)/g) {
- 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' && $line =~ /^(.(?:typedef\s*)?(?:(?:$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*)\(/) {
my ($name_len) = length($1);
- my ($level, @ctx) = ctx_statement_level($linenr, $realcnt, $name_len);
- my $ctx = join("\n", @ctx);
- $ctx =~ s/\n.//;
+ my $ctx = $s;
substr($ctx, 0, $name_len + 1) = '';
$ctx =~ s/\)[^\)]*$//;
+
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);
}
}
}
$curr_values = $prev_values . $curr_values;
if ($dbg_values) {
my $outline = $opline; $outline =~ s/\t/ /g;
- warn "--> .$outline\n";
- warn "--> $curr_values\n";
+ print "$linenr > .$outline\n";
+ print "$linenr > $curr_values\n";
}
$prev_values = substr($curr_values, -1);
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);
}
}
my $ctx = substr($line, 0, $-[1]);
# Ignore those directives where spaces _are_ permitted.
- if ($name =~ /^(?:if|for|while|switch|return|volatile|__volatile__|__attribute__|format|__extension__|Copyright|case)$/) {
+ if ($name =~ /^(?:if|for|while|switch|return|volatile|__volatile__|__attribute__|format|__extension__|Copyright|case|__asm__)$/) {
# cpp #define statements have non-optional spaces, ie
# if there is a space between the name and the open
my $a = '';
$a = 'V' if ($elements[$n] ne '');
$a = 'W' if ($elements[$n] =~ /\s$/);
+ $a = 'C' if ($elements[$n] =~ /$;$/);
$a = 'B' if ($elements[$n] =~ /(\[|\()$/);
$a = 'O' if ($elements[$n] eq '');
$a = 'E' if ($elements[$n] eq '' && $n == 0);
if (defined $elements[$n + 2]) {
$c = 'V' if ($elements[$n + 2] ne '');
$c = 'W' if ($elements[$n + 2] =~ /^\s/);
+ $c = 'C' if ($elements[$n + 2] =~ /^$;/);
$c = 'B' if ($elements[$n + 2] =~ /^(\)|\]|;)/);
$c = 'O' if ($elements[$n + 2] eq '');
$c = 'E' if ($elements[$n + 2] =~ /\s*\\$/);
# 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 !~ /^\\/ &&
- $cc !~ /^;/) {
+ } elsif ($op eq ';') {
+ if ($ctx !~ /.x[WEBC]/ &&
+ $cc !~ /^\\/ && $cc !~ /^;/) {
ERROR("need space after that '$op' $at\n" . $hereptr);
}
# , must have a space on the right.
} elsif ($op eq ',') {
- if ($ctx !~ /.xW|.xE/ && $cc !~ /^}/) {
+ if ($ctx !~ /.x[WEC]/ && $cc !~ /^}/) {
ERROR("need space after that '$op' $at\n" . $hereptr);
}
# unary operator, or a cast
} elsif ($op eq '!' || $op eq '~' ||
($is_unary && ($op eq '*' || $op eq '-' || $op eq '&'))) {
- if ($ctx !~ /[WEB]x./ && $ca !~ /(?:\)|!|~|\*|-|\&|\||\+\+|\-\-|\{)$/) {
+ if ($ctx !~ /[WEBC]x./ && $ca !~ /(?:\)|!|~|\*|-|\&|\||\+\+|\-\-|\{)$/) {
ERROR("need space before that '$op' $at\n" . $hereptr);
}
if ($ctx =~ /.xW/) {
# unary ++ and unary -- are allowed no space on one side.
} elsif ($op eq '++' or $op eq '--') {
- if ($ctx !~ /[WOB]x[^W]/ && $ctx !~ /[^W]x[WOBE]/) {
+ if ($ctx !~ /[WOBC]x[^W]/ && $ctx !~ /[^W]x[WOBEC]/) {
ERROR("need space one side of that '$op' $at\n" . $hereptr);
}
- if ($ctx =~ /Wx./ && $cc =~ /^;/) {
+ if ($ctx =~ /WxB/ || ($ctx =~ /Wx./ && $cc =~ /^;/)) {
ERROR("no space before that '$op' $at\n" . $hereptr);
}
$op eq '*' or $op eq '/' or
$op eq '%')
{
- if ($ctx !~ /VxV|WxW|VxE|WxE|VxO/) {
+ if ($ctx !~ /VxV|WxW|VxE|WxE|VxO|Cx.|.xC/) {
ERROR("need consistent spacing around '$op' $at\n" .
$hereptr);
}
# All the others need spaces both sides.
- } elsif ($ctx !~ /[EW]x[WE]/) {
+ } elsif ($ctx !~ /[EWC]x[CWE]/) {
# Ignore email addresses <foo@bar>
if (!($op eq '<' && $cb =~ /$;\S+\@\S+>/) &&
!($op eq '>' && $cb =~ /<\S+\@\S+$;/)) {
$line !~ /for\s*\(\s+;/) {
ERROR("no space after that open parenthesis '('\n" . $herecurr);
}
- if ($line =~ /\s\)/ && $line !~ /^.\s*\)/ &&
+ if ($line =~ /(\s+)\)/ && $line !~ /^.\s*\)/ &&
$line !~ /for\s*\(.*;\s+\)/) {
ERROR("no space before that close parenthesis ')'\n" . $herecurr);
}
# conditional.
substr($s, 0, length($c)) = '';
$s =~ s/\n.*//g;
-
- if (length($c) && $s !~ /^\s*({|;|\/\*.*\*\/)?\s*\\*\s*$/) {
+ $s =~ s/$;//g; # Remove any comments
+ if (length($c) && $s !~ /^\s*({|;|)\s*\\*\s*$/) {
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" . $herecurr);
+ }
}
# Check for }<nl>else {, these must be at the same
# multi-statement macros should be enclosed in a do while loop, grab the
# first statement and ensure its the whole macro if its not enclosed
-# in a known goot container
+# in a known good container
if ($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);
- my @statements = ($stmt =~ /;/g);
- #print "lines<" . scalar(@lines) . ">\n";
- #print "statements<" . scalar(@statements) . ">\n";
- if ($lvl == 0 && scalar(@lines) == 0 &&
- scalar(@statements) < 2 &&
- $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};
+
+ $herectx .= "$rawlines[$ln]\n[...]\n";
+ $ln += statement_rawlines($block) - 1;
+
+ substr($block, 0, length($cond)) = '';
+
+ $seen++ if ($block =~ /^\s*{/);
+
+ #print "cond<$cond> block<$block> allowed<$allowed>\n";
+ if (statement_lines($cond) > 1) {
+ #print "APW: ALLOWED: cond<$cond>\n";
+ $allowed = 1;
+ }
+ if ($block =~/\b(?:if|for|while)\b/) {
+ #print "APW: ALLOWED: block<$block>\n";
+ $allowed = 1;
+ }
+ if (statement_block_size($block) > 1) {
+ #print "APW: ALLOWED: lines block<$block>\n";
+ $allowed = 1;
+ }
+ }
+ if ($seen && !$allowed) {
+ WARN("braces {} are not necessary for any arm of this statement\n" . $herectx);
}
+ # Either way we have looked over this whole
+ # statement and said what needs to be said.
+ $suppress_ifbraces = $endln;
+ }
+ }
+ if ($linenr > $suppress_ifbraces &&
+ $line =~ /\b(if|while|for|else)\b/) {
+ my ($level, $endln, @chunks) =
+ ctx_statement_full($linenr, $realcnt, $-[0]);
+
+ my $allowed = 0;
+
+ # Check the pre-context.
+ if (substr($line, 0, $-[0]) =~ /(\}\s*)$/) {
+ #print "APW: ALLOWED: pre<$1>\n";
+ $allowed = 1;
+ }
+ # Check the condition.
+ my ($cond, $block) = @{$chunks[0]};
+ if (defined $cond) {
+ substr($block, 0, length($cond)) = '';
+ }
+ if (statement_lines($cond) > 1) {
+ #print "APW: ALLOWED: cond<$cond>\n";
+ $allowed = 1;
+ }
+ if ($block =~/\b(?:if|for|while)\b/) {
+ #print "APW: ALLOWED: block<$block>\n";
+ $allowed = 1;
+ }
+ if (statement_block_size($block) > 1) {
+ #print "APW: ALLOWED: lines block<$block>\n";
+ $allowed = 1;
+ }
+ # Check the post-context.
+ if (defined $chunks[1]) {
+ my ($cond, $block) = @{$chunks[1]};
+ if (defined $cond) {
+ substr($block, 0, length($cond)) = '';
+ }
+ if ($block =~ /^\s*\{/) {
+ #print "APW: ALLOWED: chunk-1 block<$block>\n";
+ $allowed = 1;
+ }
+ }
+ if ($level == 0 && $block =~ /^\s*\{/ && !$allowed) {
+ my $herectx = $here . "\n";;
+ my $end = $linenr + statement_rawlines($block) - 1;
+
+ for (my $ln = $linenr - 1; $ln < $end; $ln++) {
+ $herectx .= $rawlines[$ln] . "\n";;
+ }
+
+ WARN("braces {} are not necessary for single statement blocks\n" . $herectx);
}
}
if ($line =~ /\*\s*\)\s*k[czm]alloc\b/) {
WARN("unnecessary cast may hide bugs, see http://c-faq.com/malloc/mallocnocast.html\n" . $herecurr);
}
+
+# check for gcc specific __FUNCTION__
+ if ($line =~ /__FUNCTION__/) {
+ WARN("__func__ should be used instead of gcc specific __FUNCTION__\n" . $herecurr);
+ }
+ }
+
+ # If we have no input at all, then there is nothing to report on
+ # so just keep quiet.
+ if ($#rawlines == -1) {
+ exit(0);
}
# In mailback mode only produce a report in the negative, for
}
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";
print "are false positives report them to the maintainer, see\n";
print "CHECKPATCH in MAINTAINERS.\n";
}
+
return $clean;
}
projects / linux-2.6 / blobdiff