#!/usr/bin/perl -w
# (c) 2001, Dave Jones. <davej@codemonkey.org.uk> (the file handling bit)
-# (c) 2005, Joel Scohpp <jschopp@austin.ibm.com> (the ugly bit)
+# (c) 2005, Joel Schopp <jschopp@austin.ibm.com> (the ugly bit)
# (c) 2007, Andy Whitcroft <apw@uk.ibm.com> (new conditions, test suite, etc)
# Licensed under the terms of the GNU GPL License version 2
use strict;
my $P = $0;
+$P =~ s@.*/@@g;
-my $V = '0.01';
+my $V = '0.06';
use Getopt::Long qw(:config no_auto_abbrev);
my $tree = 1;
my $chk_signoff = 1;
my $chk_patch = 1;
+my $tst_type = 0;
GetOptions(
'q|quiet' => \$quiet,
'tree!' => \$tree,
'signoff!' => \$chk_signoff,
'patch!' => \$chk_patch,
+ 'test-type!' => \$tst_type,
) or exit;
my $exit = 0;
if ($#ARGV < 0) {
- print "usage: patchstylecheckemail.pl [options] patchfile\n";
+ print "usage: $P [options] patchfile\n";
print "version: $V\n";
print "options: -q => quiet\n";
print " --no-tree => run without a kernel tree\n";
exit(2);
}
-my @deprecated = ();
+my @dep_includes = ();
+my @dep_functions = ();
my $removal = 'Documentation/feature-removal-schedule.txt';
if ($tree && -f $removal) {
open(REMOVE, "<$removal") || die "$P: $removal: open failed - $!\n";
if (/^Files:\s+(.*\S)/) {
for my $file (split(/[, ]+/, $1)) {
if ($file =~ m@include/(.*)@) {
- push(@deprecated, $1);
+ push(@dep_includes, $1);
}
}
+
+ } elsif (/^Funcs:\s+(.*\S)/) {
+ for my $func (split(/[, ]+/, $1)) {
+ push(@dep_functions, $func);
+ }
}
}
}
-my @lines = ();
+my @rawlines = ();
while (<>) {
chomp;
- push(@lines, $_);
+ push(@rawlines, $_);
if (eof(ARGV)) {
- if (!process($ARGV, @lines)) {
+ if (!process($ARGV, @rawlines)) {
$exit = 1;
}
- @lines = ();
+ @rawlines = ();
}
}
return $res;
}
+sub line_stats {
+ my ($line) = @_;
+
+ # Drop the diff line leader and expand tabs
+ $line =~ s/^.//;
+ $line = expand_tabs($line);
+
+ # Pick the indent from the front of the line.
+ my ($white) = ($line =~ /^(\s*)/);
+
+ return (length($line), length($white));
+}
+
+sub sanitise_line {
+ my ($line) = @_;
+
+ my $res = '';
+ my $l = '';
+
+ my $quote = '';
+
+ foreach my $c (split(//, $line)) {
+ if ($l ne "\\" && ($c eq "'" || $c eq '"')) {
+ if ($quote eq '') {
+ $quote = $c;
+ $res .= $c;
+ $l = $c;
+ next;
+ } elsif ($quote eq $c) {
+ $quote = '';
+ }
+ }
+ if ($quote && $c ne "\t") {
+ $res .= "X";
+ } else {
+ $res .= $c;
+ }
+
+ $l = $c;
+ }
+
+ return $res;
+}
+
+sub ctx_block_get {
+ my ($linenr, $remain, $outer, $open, $close) = @_;
+ my $line;
+ my $start = $linenr - 1;
+ my $blk = '';
+ my @o;
+ my @c;
+ my @res = ();
+
+ for ($line = $start; $remain > 0; $line++) {
+ next if ($rawlines[$line] =~ /^-/);
+ $remain--;
+
+ $blk .= $rawlines[$line];
+
+ @o = ($blk =~ /$open/g);
+ @c = ($blk =~ /$close/g);
+
+ if (!$outer || (scalar(@o) - scalar(@c)) == 1) {
+ push(@res, $rawlines[$line]);
+ }
+
+ last if (scalar(@o) == scalar(@c));
+ }
+
+ return @res;
+}
+sub ctx_block_outer {
+ my ($linenr, $remain) = @_;
+
+ return ctx_block_get($linenr, $remain, 1, '\{', '\}');
+}
+sub ctx_block {
+ my ($linenr, $remain) = @_;
+
+ return ctx_block_get($linenr, $remain, 0, '\{', '\}');
+}
+sub ctx_statement {
+ my ($linenr, $remain) = @_;
+
+ return ctx_block_get($linenr, $remain, 0, '\(', '\)');
+}
+
+sub ctx_locate_comment {
+ my ($first_line, $end_line) = @_;
+
+ # Catch a comment on the end of the line itself.
+ my ($current_comment) = ($rawlines[$end_line - 1] =~ m@.*(/\*.*\*/)\s*$@);
+ return $current_comment if (defined $current_comment);
+
+ # Look through the context and try and figure out if there is a
+ # comment.
+ my $in_comment = 0;
+ $current_comment = '';
+ for (my $linenr = $first_line; $linenr < $end_line; $linenr++) {
+ my $line = $rawlines[$linenr - 1];
+ #warn " $line\n";
+ if ($linenr == $first_line and $line =~ m@^.\s*\*@) {
+ $in_comment = 1;
+ }
+ if ($line =~ m@/\*@) {
+ $in_comment = 1;
+ }
+ if (!$in_comment && $current_comment ne '') {
+ $current_comment = '';
+ }
+ $current_comment .= $line . "\n" if ($in_comment);
+ if ($line =~ m@\*/@) {
+ $in_comment = 0;
+ }
+ }
+
+ chomp($current_comment);
+ return($current_comment);
+}
+sub ctx_has_comment {
+ my ($first_line, $end_line) = @_;
+ my $cmt = ctx_locate_comment($first_line, $end_line);
+
+ ##print "LINE: $rawlines[$end_line - 1 ]\n";
+ ##print "CMMT: $cmt\n";
+
+ return ($cmt ne '');
+}
+
sub cat_vet {
my ($vet) = @_;
my $prevline="";
my $stashline="";
- my $lineforcounting='';
+ my $length;
my $indent;
my $previndent=0;
my $stashindent=0;
my $in_comment = 0;
my $first_line = 0;
+ my $Ident = qr{[A-Za-z\d_]+};
+ my $Storage = qr{extern|static};
+ my $Sparse = qr{__user|__kernel|__force|__iomem};
+ my $NonptrType = qr{
+ \b
+ (?:const\s+)?
+ (?:unsigned\s+)?
+ (?:
+ void|
+ char|
+ short|
+ int|
+ long|
+ unsigned|
+ float|
+ double|
+ long\s+int|
+ long\s+long|
+ long\s+long\s+int|
+ struct\s+$Ident|
+ union\s+$Ident|
+ ${Ident}_t
+ )
+ (?:\s+$Sparse)*
+ \b
+ }x;
+ my $Type = qr{
+ \b$NonptrType\b
+ (?:\s*\*+\s*const|\s*\*+)?
+ }x;
+ my $Declare = qr{(?:$Storage\s+)?$Type};
+ my $Attribute = qr{__read_mostly|__init|__initdata};
+
foreach my $line (@lines) {
$linenr++;
+ my $rawline = $line;
+
#extract the filename as it passes
if ($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 = 1;
+ $first_line = $linenr + 1;
$in_comment = 0;
$realline=$1-1;
if (defined $2) {
next;
}
-#track the line number as we move through the hunk
- if ($line=~/^[ \+]/) {
+# 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 ($line =~ /^( |\+|$)/) {
$realline++;
$realcnt-- if ($realcnt != 0);
# 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 ($first_line and $line =~ m@^.\s*\*@) {
+ if ($linenr == $first_line and $line =~ m@^.\s*\*@) {
$in_comment = 1;
}
if ($line =~ m@/\*@) {
$in_comment = 0;
}
- $lineforcounting = $line;
- $lineforcounting =~ s/^\+//;
- $lineforcounting = expand_tabs($lineforcounting);
-
- my ($white) = ($lineforcounting =~ /^(\s*)/);
- $indent = length($white);
+ # Measure the line length and indent.
+ ($length, $indent) = line_stats($line);
# Track the previous line.
($prevline, $stashline) = ($stashline, $line);
($previndent, $stashindent) = ($stashindent, $indent);
- $first_line = 0;
+ } elsif ($realcnt == 1) {
+ $realcnt--;
}
#make up the handle for any error we report on this line
- $here = "PATCH: $ARGV:$linenr:";
- $here .= "\nFILE: $realfile:$realline:" if ($realcnt != 0);
+ $here = "#$linenr: ";
+ $here .= "FILE: $realfile:$realline:" if ($realcnt != 0);
+ my $hereline = "$here\n$line\n";
my $herecurr = "$here\n$line\n\n";
my $hereprev = "$here\n$prevline\n$line\n\n";
#check the patch for a signoff:
- if ($line =~ /^\s*Signed-off-by:\s/) {
+ if ($line =~ /^\s*signed-off-by:/i) {
+ # This is a signoff, if ugly, so do not double report.
$signoff++;
-
- } elsif ($line =~ /^\s*signed-off-by:/i) {
if (!($line =~ /^\s*Signed-off-by:/)) {
- print "use Signed-off-by:\n";
+ print "Signed-off-by: is the preferred form\n";
print "$herecurr";
$clean = 0;
}
}
}
-#ignore lines not being added
- if ($line=~/^[^\+]/) {next;}
+# Check for wrappage within a valid hunk of the file
+ if ($realcnt != 0 && $line !~ m{^(?:\+|-| |$)}) {
+ print "patch seems to be corrupt (line wrapped?) [$realcnt]\n";
+ print "$herecurr";
+ $clean = 0;
+ }
+
+#ignore lines being removed
+ if ($line=~/^-/) {next;}
-# check we are in a valid source file *.[hcsS] if not then ignore this hunk
- next if ($realfile !~ /\.[hcsS]$/);
+# check we are in a valid source file if not then ignore this hunk
+ next if ($realfile !~ /\.(h|c|s|S|pl|sh)$/);
#trailing whitespace
- if ($line=~/\S\s+$/) {
+ if ($line =~ /^\+.*\S\s+$/ || $line =~ /^\+\s+$/) {
my $herevet = "$here\n" . cat_vet($line) . "\n\n";
print "trailing whitespace\n";
print "$herevet";
$clean = 0;
}
#80 column limit
- if (!($prevline=~/\/\*\*/) && length($lineforcounting) > 80) {
+ if ($line =~ /^\+/ && !($prevline=~/\/\*\*/) && $length > 80) {
print "line over 80 characters\n";
print "$herecurr";
$clean = 0;
#
next if ($in_comment);
+# Remove comments from the line before processing.
+ $line =~ s@/\*.*\*/@@g;
+ $line =~ s@/\*.*@@;
+ $line =~ s@.*\*/@@;
+
+# Standardise the strings and chars within the input to simplify matching.
+ $line = sanitise_line($line);
+
+#
+# Checks which may be anchored in the context.
+#
+
+# Check for switch () and associated case and default
+# statements should be at the same indent.
+ if ($line=~/\bswitch\s*\(.*\)/) {
+ my $err = '';
+ my $sep = '';
+ my @ctx = ctx_block_outer($linenr, $realcnt);
+ shift(@ctx);
+ for my $ctx (@ctx) {
+ my ($clen, $cindent) = line_stats($ctx);
+ if ($ctx =~ /^\+\s*(case\s+|default:)/ &&
+ $indent != $cindent) {
+ $err .= "$sep$ctx\n";
+ $sep = '';
+ } else {
+ $sep = "[...]\n";
+ }
+ }
+ if ($err ne '') {
+ print "switch and case should be at the same indent\n";
+ print "$here\n$line\n$err\n";
+ $clean = 0;
+ }
+ }
+
+#ignore lines not being added
+ if ($line=~/^[^\+]/) {next;}
+
+# TEST: allow direct testing of the type matcher.
+ if ($tst_type && $line =~ /^.$Declare$/) {
+ print "TEST: is type $Declare\n";
+ print "$herecurr";
+ $clean = 0;
+ next;
+ }
+
+#
+# Checks which are anchored on the added line.
+#
+
+# check for malformed paths in #include statements (uses RAW line)
+ if ($rawline =~ m{^.#\s*include\s+[<"](.*)[">]}) {
+ my $path = $1;
+ if ($path =~ m{//}) {
+ print "malformed #include filename\n";
+ print "$herecurr";
+ $clean = 0;
+ }
+ # Sanitise this special form of string.
+ $path = 'X' x length($path);
+ $line =~ s{\<.*\>}{<$path>};
+ }
+
# no C99 // comments
- if ($line =~ m@//@ and !($line =~ m@\".*//.*\"@)) {
+ if ($line =~ m{//}) {
print "do not use C99 // comments\n";
print "$herecurr";
$clean = 0;
}
-
- # Remove comments from the line before processing.
- $line =~ s@/\*.*\*/@@g;
- $line =~ s@/\*.*@@;
- $line =~ s@.*\*/@@;
+ # Remove C99 comments.
$line =~ s@//.*@@;
#EXPORT_SYMBOL should immediately follow its function closing }.
- if (($line =~ /EXPORT_SYMBOL.*\(.*\)/) ||
- ($line =~ /EXPORT_UNUSED_SYMBOL.*\(.*\)/)) {
+ if (($line =~ /EXPORT_SYMBOL.*\((.*)\)/) ||
+ ($line =~ /EXPORT_UNUSED_SYMBOL.*\((.*)\)/)) {
+ my $name = $1;
if (($prevline !~ /^}/) &&
($prevline !~ /^\+}/) &&
- ($prevline !~ /^ }/)) {
- print "EXPORT_SYMBOL(func); should immediately follow its function\n";
+ ($prevline !~ /^ }/) &&
+ ($prevline !~ /\s$name(?:\s+$Attribute)?\s*(?:;|=)/)) {
+ print "EXPORT_SYMBOL(foo); should immediately follow its function/variable\n";
print "$herecurr";
$clean = 0;
}
}
- # check for static initialisers.
+# check for static initialisers.
if ($line=~/\s*static\s.*=\s+(0|NULL);/) {
print "do not initialise statics to 0 or NULL\n";
print "$herecurr";
$clean = 0;
}
- # check for new typedefs.
- if ($line=~/\s*typedef\s/) {
+# check for new typedefs, only function parameters and sparse annotations
+# make sense.
+ if ($line =~ /\btypedef\s/ &&
+ $line !~ /\btypedef\s+$Type\s+\(\s*$Ident\s*\)\s*\(/ &&
+ $line !~ /\b__bitwise(?:__|)\b/) {
print "do not add new typedefs\n";
print "$herecurr";
$clean = 0;
}
# * goes on variable not on type
- if ($line=~/[A-Za-z\d_]+\* [A-Za-z\d_]+/) {
- print "\"foo* bar\" should be \"foo *bar\"\n";
+ if ($line =~ m{\($NonptrType(\*+)(?:\s+const)?\)}) {
+ print "\"(foo$1)\" should be \"(foo $1)\"\n";
+ print "$herecurr";
+ $clean = 0;
+
+ } elsif ($line =~ m{\($NonptrType\s+(\*+)(?!\s+const)\s+\)}) {
+ print "\"(foo $1 )\" should be \"(foo $1)\"\n";
+ print "$herecurr";
+ $clean = 0;
+
+ } elsif ($line =~ m{$NonptrType(\*+)(?:\s+const)?\s+[A-Za-z\d_]+}) {
+ print "\"foo$1 bar\" should be \"foo $1bar\"\n";
+ print "$herecurr";
+ $clean = 0;
+
+ } elsif ($line =~ m{$NonptrType\s+(\*+)(?!\s+const)\s+[A-Za-z\d_]+}) {
+ print "\"foo $1 bar\" should be \"foo $1bar\"\n";
print "$herecurr";
$clean = 0;
}
# $clean = 0;
# }
-# printk should use KERN_* levels
+# printk should use KERN_* levels. Note that follow on printk's on the
+# same line do not need a level, so we use the current block context
+# to try and find and validate the current printk. In summary the current
+# printk includes all preceeding printk's which have no newline on the end.
+# we assume the first bad printk is the one to report.
if ($line =~ /\bprintk\((?!KERN_)/) {
- print "printk() should include KERN_ facility level\n";
- print "$herecurr";
- $clean = 0;
+ my $ok = 0;
+ for (my $ln = $linenr - 1; $ln >= $first_line; $ln--) {
+ #print "CHECK<$lines[$ln - 1]\n";
+ # we have a preceeding printk if it ends
+ # with "\n" ignore it, else it is to blame
+ if ($lines[$ln - 1] =~ m{\bprintk\(}) {
+ if ($rawlines[$ln - 1] !~ m{\\n"}) {
+ $ok = 1;
+ }
+ last;
+ }
+ }
+ if ($ok == 0) {
+ print "printk() should include KERN_ facility level\n";
+ print "$herecurr";
+ $clean = 0;
+ }
}
-#function brace can't be on same line, except for #defines of do while, or if closed on same line
- if (($line=~/[A-Za-z\d_]+\**\s+\**[A-Za-z\d_]+\(.*\).* {/) and
+# 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
!($line=~/\#define.*do\s{/) and !($line=~/}/)) {
print "braces following function declarations go on the next line\n";
print "$herecurr";
$clean = 0;
}
+
+# Check operator spacing.
+ # Note we expand the line with the leading + as the real
+ # line will be displayed with the leading + and the tabs
+ # will therefore also expand that way.
my $opline = $line;
- $opline =~ s/^.//;
+ $opline = expand_tabs($opline);
+ $opline =~ s/^./ /;
if (!($line=~/\#\s*include/)) {
- # Check operator spacing.
my @elements = split(/(<<=|>>=|<=|>=|==|!=|\+=|-=|\*=|\/=|%=|\^=|\|=|&=|->|<<|>>|<|>|=|!|~|&&|\|\||,|\^|\+\+|--|;|&|\||\+|-|\*|\/\/|\/)/, $opline);
+ my $off = 0;
for (my $n = 0; $n < $#elements; $n += 2) {
- # $wN says we have white-space before or after
- # $sN says we have a separator before or after
- # $oN says we have another operator before or after
- my $w1 = $elements[$n] =~ /\s$/;
- my $s1 = $elements[$n] =~ /(\[|\(|\s)$/;
- my $o1 = $elements[$n] eq '';
+ $off += length($elements[$n]);
+
+ my $a = '';
+ $a = 'V' if ($elements[$n] ne '');
+ $a = 'W' if ($elements[$n] =~ /\s$/);
+ $a = 'B' if ($elements[$n] =~ /(\[|\()$/);
+ $a = 'O' if ($elements[$n] eq '');
+ $a = 'E' if ($elements[$n] eq '' && $n == 0);
+
my $op = $elements[$n + 1];
- my $w2 = 1;
- my $s2 = 1;
- my $o2 = 0;
- # If we have something after the operator handle it.
+
+ my $c = '';
if (defined $elements[$n + 2]) {
- $w2 = $elements[$n + 2] =~ /^\s/;
- $s2 = $elements[$n + 2] =~ /^(\s|\)|\]|;)/;
- $o2 = $elements[$n + 2] eq '';
+ $c = 'V' if ($elements[$n + 2] ne '');
+ $c = 'W' if ($elements[$n + 2] =~ /^\s/);
+ $c = 'B' if ($elements[$n + 2] =~ /^(\)|\]|;)/);
+ $c = 'O' if ($elements[$n + 2] eq '');
+ } else {
+ $c = 'E';
}
- # Generate the context.
- my $at = "here: ";
- for (my $m = $n; $m >= 0; $m--) {
- if ($elements[$m] ne '') {
- $at .= $elements[$m];
- last;
- }
- }
- $at .= $op;
- for (my $m = $n + 2; defined $elements[$m]; $m++) {
- if ($elements[$m] ne '') {
- $at .= $elements[$m];
- last;
- }
+ # Pick up the preceeding and succeeding characters.
+ my $ca = substr($opline, $off - 1, 1);
+ my $cc = '';
+ if (length($opline) >= ($off + length($elements[$n + 1]))) {
+ $cc = substr($opline, $off + length($elements[$n + 1]));
}
+ my $ctx = "${a}x${c}";
+
+ my $at = "(ctx:$ctx)";
+
+ my $ptr = (" " x $off) . "^";
+ my $hereptr = "$hereline$ptr\n\n";
+
##print "<$s1:$op:$s2> <$elements[$n]:$elements[$n + 1]:$elements[$n + 2]>\n";
- # Skip things apparently in quotes.
- next if ($line=~/\".*\Q$op\E.*\"/ or $line=~/\'\Q$op\E\'/);
- # We need ; as an operator. // is a comment.
- if ($op eq ';' or $op eq '//') {
+ # ; should have either the end of line or a space or \ after it
+ if ($op eq ';') {
+ if ($ctx !~ /.x[WE]/ && $cc !~ /^\\/) {
+ print "need space after that '$op' $at\n";
+ print "$hereptr";
+ $clean = 0;
+ }
+
+ # // is a comment
+ } elsif ($op eq '//') {
# -> should have no spaces
} elsif ($op eq '->') {
- if ($s1 or $s2) {
+ if ($ctx =~ /Wx.|.xW/) {
print "no spaces around that '$op' $at\n";
- print "$herecurr";
+ print "$hereptr";
$clean = 0;
}
# , must have a space on the right.
} elsif ($op eq ',') {
- if (!$s2) {
+ if ($ctx !~ /.xW|.xE/ && $cc !~ /^}/) {
print "need space after that '$op' $at\n";
- print "$herecurr";
+ print "$hereptr";
$clean = 0;
}
# unary ! and unary ~ are allowed no space on the right
} elsif ($op eq '!' or $op eq '~') {
- if (!$s1 && !$o1) {
+ if ($ctx !~ /[WOEB]x./) {
print "need space before that '$op' $at\n";
- print "$herecurr";
+ print "$hereptr";
$clean = 0;
}
- if ($s2) {
+ if ($ctx =~ /.xW/) {
print "no space after that '$op' $at\n";
- print "$herecurr";
+ print "$hereptr";
$clean = 0;
}
# unary ++ and unary -- are allowed no space on one side.
} elsif ($op eq '++' or $op eq '--') {
- if (($s1 && $s2) || ((!$s1 && !$o1) && (!$s2 && !$o2))) {
+ if ($ctx !~ /[WOB]x[^W]/ && $ctx !~ /[^W]x[WOBE]/) {
print "need space one side of that '$op' $at\n";
- print "$herecurr";
+ print "$hereptr";
+ $clean = 0;
+ }
+ if ($ctx =~ /Wx./ && $cc =~ /^;/) {
+ print "no space before that '$op' $at\n";
+ print "$hereptr";
$clean = 0;
}
#
# - is the same
#
- # * is the same only adding:
+ } elsif ($op eq '&' or $op eq '-') {
+ if ($ctx !~ /VxV|[EW]x[WE]|[EWB]x[VO]/) {
+ print "need space before that '$op' $at\n";
+ print "$hereptr";
+ $clean = 0;
+ }
+
+ # * is the same as & only adding:
# type:
# (foo *)
# (foo **)
#
- } elsif ($op eq '&' or $op eq '-' or $op eq '*') {
- if ($w2 and !$w1) {
+ } elsif ($op eq '*') {
+ if ($ca eq '*') {
+ if ($cc =~ /^\s(?!\s*const)/) {
+ print "no space after that '$op' $at\n";
+ print "$hereptr";
+ $clean = 0;
+ }
+ } elsif ($ctx !~ /VxV|[EW]x[WE]|[EWB]x[VO]|OxV|WxB|BxB/) {
print "need space before that '$op' $at\n";
- print "$herecurr";
+ print "$hereptr";
$clean = 0;
}
} elsif ($op eq '<<' or $op eq '>>' or $op eq '+' or $op eq '/' or
$op eq '^' or $op eq '|')
{
- if ($s1 != $s2) {
+ if ($ctx !~ /VxV|WxW|VxE|WxE/) {
print "need consistent spacing around '$op' $at\n";
- print "$herecurr";
+ print "$hereptr";
$clean = 0;
}
# All the others need spaces both sides.
- } elsif (!$s1 or !$s2) {
+ } elsif ($ctx !~ /[EW]x[WE]/) {
print "need spaces around that '$op' $at\n";
- print "$herecurr";
+ print "$hereptr";
$clean = 0;
}
+ $off += length($elements[$n + 1]);
}
}
}
#goto labels aren't indented, allow a single space however
- if ($line=~/^.\s+[A-Za-z\d_]+:/ and
+ if ($line=~/^.\s+[A-Za-z\d_]+:(?![0-9]+)/ and
!($line=~/^. [A-Za-z\d_]+:/) and !($line=~/^.\s+default:/)) {
print "labels should not be indented\n";
print "$herecurr";
}
# Need a space before open parenthesis after if, while etc
- if ($line=~/(if|while|for|switch)\(/) {
+ if ($line=~/\b(if|while|for|switch)\(/) {
print "need a space before the open parenthesis\n";
print "$herecurr";
$clean = 0;
}
# Check for illegal assignment in if conditional.
- if ($line=~/(if|while)\s*\(.*[^<>!=]=[^=].*\)/) {
+ if ($line=~/\bif\s*\(.*[^<>!=]=[^=].*\)/) {
+ #next if ($line=~/\".*\Q$op\E.*\"/ or $line=~/\'\Q$op\E\'/);
print "do not use assignment in if condition\n";
print "$herecurr";
$clean = 0;
$clean = 0;
}
- # Check for switch () {<nl>case, these must be at the
- # same indent. We will only catch the first one, as our
- # context is very small but people tend to be consistent
- # so we will catch them out more often than not.
- if ($prevline=~/\s*switch\s*\(.*\)/ and $line=~/\s*case\s+/
- and $previndent != $indent) {
- print "switch and case should be at the same indent\n";
- print "$hereprev";
- $clean = 0;
- }
-
#studly caps, commented out until figure out how to distinguish between use of existing and adding new
# if (($line=~/[\w_][a-z\d]+[A-Z]/) and !($line=~/print/)) {
# print "No studly caps, use _\n";
$clean = 0;
}
-#warn if <asm/foo.h> is #included and <linux/foo.h> is available.
- if ($tree && $line =~ qr|\s*\#\s*include\s*\<asm\/(.*)\.h\>|) {
+#warn if <asm/foo.h> is #included and <linux/foo.h> is available (uses RAW line)
+ if ($tree && $rawline =~ m{^.\#\s*include\s*\<asm\/(.*)\.h\>}) {
my $checkfile = "include/linux/$1.h";
if (-f $checkfile) {
print "Use #include <linux/$1.h> instead of <asm/$1.h>\n";
}
}
-#if/while/etc brace do not go on next line, unless #defining a do while loop, or if that brace on the next line is for something else
- if ($prevline=~/(if|while|for|switch)\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 ($prevline=~/\b(?:(if|while|for|switch)\s*\(|do\b|else\b)/) {
my @opened = $prevline=~/\(/g;
my @closed = $prevline=~/\)/g;
my $nr_line = $linenr;
- my $remaining = $realcnt;
+ my $remaining = $realcnt - 1;
my $next_line = $line;
my $extra_lines = 0;
my $display_segment = $prevline;
@closed = $prevline=~/\)/g;
}
- if (($prevline=~/(if|while|for|switch)\s*\(.*\)\s*$/) and ($next_line=~/{/) and
- !($next_line=~/(if|while|for)/) and !($next_line=~/\#define.*do.*while/)) {
+ if (($prevline=~/\b(?:(if|while|for|switch)\s*\(.*\)|do|else)\s*$/) and ($next_line=~/{/) and
+ !($next_line=~/\b(?:if|while|for|switch|do|else)\b/) and !($next_line=~/\#define.*do.*while/)) {
print "That { should be on the previous line\n";
- print "$display_segment\n$next_line\n\n";
+ print "$here\n$display_segment\n$next_line\n\n";
$clean = 0;
}
}
-#multiline macros should be enclosed in a do while loop
- if (($prevline=~/\#define.*\\/) and !($prevline=~/do\s+{/) and
- !($prevline=~/\(\{/) and ($line=~/;\s*\\/) and
- !($line=~/do.*{/) and !($line=~/\(\{/)) {
- print "Macros with multiple statements should be enclosed in a do - while loop\n";
- print "$hereprev";
+# if and else should not have general statements after it
+ if ($line =~ /^.\s*(?:}\s*)?else\b(.*)/ &&
+ $1 !~ /^\s*(?:\sif|{|$)/) {
+ print "trailing statements should be on next line\n";
+ print "$herecurr";
$clean = 0;
}
-# don't include deprecated include files
- for my $inc (@deprecated) {
- if ($line =~ m@\#\s*include\s*\<$inc>@) {
+# multi-statement macros should be enclosed in a do while loop, grab the
+# first statement and ensure its the whole macro if its not enclosed
+# in a known goot container
+ if (($prevline=~/\#define.*\\/) and
+ !($prevline=~/do\s+{/) and !($prevline=~/\(\{/) and
+ !($line=~/do.*{/) and !($line=~/\(\{/) and
+ !($line=~/^.\s*$Declare\s/)) {
+ # Grab the first statement, if that is the entire macro
+ # its ok. This may start either on the #define line
+ # or the one below.
+ my $ln = $linenr;
+ my $cnt = $realcnt;
+
+ # If the macro starts on the define line start there.
+ if ($prevline !~ m{^.#\s*define\s*$Ident(?:\([^\)]*\))?\s*\\\s*$}) {
+ $ln--;
+ $cnt++;
+ }
+ my $ctx = join('', ctx_statement($ln, $cnt));
+
+ if ($ctx =~ /\\$/) {
+ if ($ctx =~ /;/) {
+ print "Macros with multiple statements should be enclosed in a do - while loop\n";
+ } else {
+ print "Macros with complex values should be enclosed in parenthesis\n";
+ }
+ print "$hereprev";
+ $clean = 0;
+ }
+ }
+
+# don't include deprecated include files (uses RAW line)
+ for my $inc (@dep_includes) {
+ if ($rawline =~ m@\#\s*include\s*\<$inc>@) {
print "Don't use <$inc>: see Documentation/feature-removal-schedule.txt\n";
print "$herecurr";
$clean = 0;
}
}
-# don't use kernel_thread()
- if ($line =~ /\bkernel_thread\b/) {
- print "Don't use kernel_thread(), use kthread(): see Documentation/feature-removal-schedule.txt\n";
+# don't use deprecated functions
+ for my $func (@dep_functions) {
+ if ($line =~ /\b$func\b/) {
+ print "Don't use $func(): see Documentation/feature-removal-schedule.txt\n";
+ print "$herecurr";
+ $clean = 0;
+ }
+ }
+
+# no volatiles please
+ if ($line =~ /\bvolatile\b/ && $line !~ /\basm\s+volatile\b/) {
+ print "Use of volatile is usually wrong: see Documentation/volatile-considered-harmful.txt\n";
+ print "$herecurr";
+ $clean = 0;
+ }
+
+# warn about #if 0
+ if ($line =~ /^.#\s*if\s+0\b/) {
+ print "#if 0 -- if this code redundant remove it\n";
+ print "$herecurr";
+ $clean = 0;
+ }
+
+# warn about #ifdefs in C files
+# if ($line =~ /^.#\s*if(|n)def/ && ($realfile =~ /\.c$/)) {
+# print "#ifdef in C files should be avoided\n";
+# print "$herecurr";
+# $clean = 0;
+# }
+
+# check for spinlock_t definitions without a comment.
+ if ($line =~ /^.\s*(struct\s+mutex|spinlock_t)\s+\S+;/) {
+ my $which = $1;
+ if (!ctx_has_comment($first_line, $linenr)) {
+ print "$1 definition without comment\n";
+ print "$herecurr";
+ $clean = 0;
+ }
+ }
+# check for memory barriers without a comment.
+ if ($line =~ /\b(mb|rmb|wmb|read_barrier_depends|smp_mb|smp_rmb|smp_wmb|smp_read_barrier_depends)\(/) {
+ if (!ctx_has_comment($first_line, $linenr)) {
+ print "memory barrier without comment\n";
+ print "$herecurr";
+ $clean = 0;
+ }
+ }
+# check of hardware specific defines
+ if ($line =~ m@^.#\s*if.*\b(__i386__|__powerpc64__|__sun__|__s390x__)\b@) {
+ print "architecture specific defines should be avoided\n";
+ print "$herecurr";
+ $clean = 0;
+ }
+
+ if ($line =~ /$Type\s+(?:inline|__always_inline)\b/ ||
+ $line =~ /\b(?:inline|always_inline)\s+$Storage/) {
+ print "inline keyword should sit between storage class and type\n";
print "$herecurr";
$clean = 0;
}
projects / linux-2.6-omap-h63xx.git / blobdiff