# Licensed under the terms of the GNU GPL License version 2
use strict;
+use POSIX;
my $P = $0;
$P =~ s@.*/@@g;
my $mailback = 0;
my $summary_file = 0;
my $show_types = 0;
+my $fix = 0;
+my $fix_inplace = 0;
my $root;
my %debug;
+my %camelcase = ();
+my %use_type = ();
+my @use = ();
my %ignore_type = ();
my @ignore = ();
my $help = 0;
my $configuration_file = ".checkpatch.conf";
my $max_line_length = 80;
+my $ignore_perl_version = 0;
+my $minimum_perl_version = 5.10.0;
sub help {
my ($exitcode) = @_;
--terse one line per report
-f, --file treat FILE as regular source file
--subjective, --strict enable more subjective tests
+ --types TYPE(,TYPE2...) show only these comma separated message types
--ignore TYPE(,TYPE2...) ignore various comma separated message types
--max-line-length=n set the maximum line length, if exceeded, warn
--show-types show the message "types" in the output
is all off)
--test-only=WORD report only warnings/errors containing WORD
literally
+ --fix EXPERIMENTAL - may create horrible results
+ If correctable single-line errors exist, create
+ "<inputfile>.EXPERIMENTAL-checkpatch-fixes"
+ with potential errors corrected to the preferred
+ checkpatch style
+ --fix-inplace EXPERIMENTAL - may create horrible results
+ Is the same as --fix, but overwrites the input
+ file. It's your fault if there's no backup or git
+ --ignore-perl-version override checking of perl version. expect
+ runtime errors.
-h, --help, --version display this help and exit
When FILE is - read standard input.
'subjective!' => \$check,
'strict!' => \$check,
'ignore=s' => \@ignore,
+ 'types=s' => \@use,
'show-types!' => \$show_types,
'max-line-length=i' => \$max_line_length,
'root=s' => \$root,
'summary!' => \$summary,
'mailback!' => \$mailback,
'summary-file!' => \$summary_file,
-
+ 'fix!' => \$fix,
+ 'fix-inplace!' => \$fix_inplace,
+ 'ignore-perl-version!' => \$ignore_perl_version,
'debug=s' => \%debug,
'test-only=s' => \$tst_only,
'h|help' => \$help,
help(0) if ($help);
+$fix = 1 if ($fix_inplace);
+
my $exit = 0;
+if ($^V && $^V lt $minimum_perl_version) {
+ printf "$P: requires at least perl version %vd\n", $minimum_perl_version;
+ if (!$ignore_perl_version) {
+ exit(1);
+ }
+}
+
if ($#ARGV < 0) {
print "$P: no input files\n";
exit(1);
}
-@ignore = split(/,/, join(',',@ignore));
-foreach my $word (@ignore) {
- $word =~ s/\s*\n?$//g;
- $word =~ s/^\s*//g;
- $word =~ s/\s+/ /g;
- $word =~ tr/[a-z]/[A-Z]/;
+sub hash_save_array_words {
+ my ($hashRef, $arrayRef) = @_;
- next if ($word =~ m/^\s*#/);
- next if ($word =~ m/^\s*$/);
+ my @array = split(/,/, join(',', @$arrayRef));
+ foreach my $word (@array) {
+ $word =~ s/\s*\n?$//g;
+ $word =~ s/^\s*//g;
+ $word =~ s/\s+/ /g;
+ $word =~ tr/[a-z]/[A-Z]/;
- $ignore_type{$word}++;
+ next if ($word =~ m/^\s*#/);
+ next if ($word =~ m/^\s*$/);
+
+ $hashRef->{$word}++;
+ }
}
+sub hash_show_words {
+ my ($hashRef, $prefix) = @_;
+
+ if ($quiet == 0 && keys %$hashRef) {
+ print "NOTE: $prefix message types:";
+ foreach my $word (sort keys %$hashRef) {
+ print " $word";
+ }
+ print "\n\n";
+ }
+}
+
+hash_save_array_words(\%ignore_type, \@ignore);
+hash_save_array_words(\%use_type, \@use);
+
my $dbg_values = 0;
my $dbg_possible = 0;
my $dbg_type = 0;
__ref|
__rcu
}x;
+our $InitAttributePrefix = qr{__(?:mem|cpu|dev|net_|)};
+our $InitAttributeData = qr{$InitAttributePrefix(?:initdata\b)};
+our $InitAttributeConst = qr{$InitAttributePrefix(?:initconst\b)};
+our $InitAttributeInit = qr{$InitAttributePrefix(?:init\b)};
+our $InitAttribute = qr{$InitAttributeData|$InitAttributeConst|$InitAttributeInit};
# Notes to $Attribute:
# We need \b after 'init' otherwise 'initconst' will cause a false positive in a check
__deprecated|
__read_mostly|
__kprobes|
- __(?:mem|cpu|dev|)(?:initdata|initconst|init\b)|
+ $InitAttribute|
____cacheline_aligned|
____cacheline_aligned_in_smp|
____cacheline_internodealigned_in_smp|
our $Member = qr{->$Ident|\.$Ident|\[[^]]*\]};
our $Lval = qr{$Ident(?:$Member)*};
+our $Int_type = qr{(?i)llu|ull|ll|lu|ul|l|u};
+our $Binary = qr{(?i)0b[01]+$Int_type?};
+our $Hex = qr{(?i)0x[0-9a-f]+$Int_type?};
+our $Int = qr{[0-9]+$Int_type?};
our $Float_hex = qr{(?i)0x[0-9a-f]+p-?[0-9]+[fl]?};
our $Float_dec = qr{(?i)(?:[0-9]+\.[0-9]*|[0-9]*\.[0-9]+)(?:e-?[0-9]+)?[fl]?};
our $Float_int = qr{(?i)[0-9]+e-?[0-9]+[fl]?};
our $Float = qr{$Float_hex|$Float_dec|$Float_int};
-our $Constant = qr{$Float|(?i)(?:0x[0-9a-f]+|[0-9]+)[ul]*};
+our $Constant = qr{$Float|$Binary|$Hex|$Int};
our $Assignment = qr{\*\=|/=|%=|\+=|-=|<<=|>>=|&=|\^=|\|=|=};
our $Compare = qr{<=|>=|==|!=|<|>};
+our $Arithmetic = qr{\+|-|\*|\/|%};
our $Operators = qr{
<=|>=|==|!=|
=>|->|<<|>>|<|>|!|~|
- &&|\|\||,|\^|\+\+|--|&|\||\+|-|\*|\/|%
+ &&|\|\||,|\^|\+\+|--|&|\||$Arithmetic
}x;
our $NonptrType;
+our $NonptrTypeWithAttr;
our $Type;
our $Declare;
our $logFunctions = qr{(?x:
printk(?:_ratelimited|_once|)|
- [a-z0-9]+_(?:printk|emerg|alert|crit|err|warning|warn|notice|info|debug|dbg|vdbg|devel|cont|WARN)(?:_ratelimited|_once|)|
+ (?:[a-z0-9]+_){1,2}(?:printk|emerg|alert|crit|err|warning|warn|notice|info|debug|dbg|vdbg|devel|cont|WARN)(?:_ratelimited|_once|)|
WARN(?:_RATELIMIT|_ONCE|)|
panic|
debug|
printf|
- MODULE_[A-Z_]+
+ puts|
+ MODULE_[A-Z_]+|
+ seq_vprintf|seq_printf|seq_puts
)};
our $signature_tags = qr{(?xi:
Tested-by:|
Reviewed-by:|
Reported-by:|
+ Suggested-by:|
To:|
Cc:
)};
qr{${Ident}_handler},
qr{${Ident}_handler_fn},
);
+our @typeListWithAttr = (
+ @typeList,
+ qr{struct\s+$InitAttribute\s+$Ident},
+ qr{union\s+$InitAttribute\s+$Ident},
+);
+
our @modifierList = (
qr{fastcall},
);
sub build_types {
my $mods = "(?x: \n" . join("|\n ", @modifierList) . "\n)";
my $all = "(?x: \n" . join("|\n ", @typeList) . "\n)";
+ my $allWithAttr = "(?x: \n" . join("|\n ", @typeListWithAttr) . "\n)";
$Modifier = qr{(?:$Attribute|$Sparse|$mods)};
$NonptrType = qr{
(?:$Modifier\s+|const\s+)*
)
(?:\s+$Modifier|\s+const)*
}x;
+ $NonptrTypeWithAttr = qr{
+ (?:$Modifier\s+|const\s+)*
+ (?:
+ (?:typeof|__typeof__)\s*\([^\)]*\)|
+ (?:$typeTypedefs\b)|
+ (?:${allWithAttr}\b)
+ )
+ (?:\s+$Modifier|\s+const)*
+ }x;
$Type = qr{
$NonptrType
(?:(?:\s|\*|\[\])+\s*const|(?:\s|\*|\[\])+|(?:\s*\[\s*\])+)?
}
build_types();
-
our $Typecast = qr{\s*(\(\s*$NonptrType\s*\)){0,1}\s*};
# Using $balanced_parens, $LvalOrFunc, or $FuncArg
return $string;
}
+sub seed_camelcase_file {
+ my ($file) = @_;
+
+ return if (!(-f $file));
+
+ local $/;
+
+ open(my $include_file, '<', "$file")
+ or warn "$P: Can't read '$file' $!\n";
+ my $text = <$include_file>;
+ close($include_file);
+
+ my @lines = split('\n', $text);
+
+ foreach my $line (@lines) {
+ next if ($line !~ /(?:[A-Z][a-z]|[a-z][A-Z])/);
+ if ($line =~ /^[ \t]*(?:#[ \t]*define|typedef\s+$Type)\s+(\w*(?:[A-Z][a-z]|[a-z][A-Z])\w*)/) {
+ $camelcase{$1} = 1;
+ } elsif ($line =~ /^\s*$Declare\s+(\w*(?:[A-Z][a-z]|[a-z][A-Z])\w*)\s*[\(\[,;]/) {
+ $camelcase{$1} = 1;
+ } elsif ($line =~ /^\s*(?:union|struct|enum)\s+(\w*(?:[A-Z][a-z]|[a-z][A-Z])\w*)\s*[;\{]/) {
+ $camelcase{$1} = 1;
+ }
+ }
+}
+
+my $camelcase_seeded = 0;
+sub seed_camelcase_includes {
+ return if ($camelcase_seeded);
+
+ my $files;
+ my $camelcase_cache = "";
+ my @include_files = ();
+
+ $camelcase_seeded = 1;
+
+ if (-e ".git") {
+ my $git_last_include_commit = `git log --no-merges --pretty=format:"%h%n" -1 -- include`;
+ chomp $git_last_include_commit;
+ $camelcase_cache = ".checkpatch-camelcase.git.$git_last_include_commit";
+ } else {
+ my $last_mod_date = 0;
+ $files = `find $root/include -name "*.h"`;
+ @include_files = split('\n', $files);
+ foreach my $file (@include_files) {
+ my $date = POSIX::strftime("%Y%m%d%H%M",
+ localtime((stat $file)[9]));
+ $last_mod_date = $date if ($last_mod_date < $date);
+ }
+ $camelcase_cache = ".checkpatch-camelcase.date.$last_mod_date";
+ }
+
+ if ($camelcase_cache ne "" && -f $camelcase_cache) {
+ open(my $camelcase_file, '<', "$camelcase_cache")
+ or warn "$P: Can't read '$camelcase_cache' $!\n";
+ while (<$camelcase_file>) {
+ chomp;
+ $camelcase{$_} = 1;
+ }
+ close($camelcase_file);
+
+ return;
+ }
+
+ if (-e ".git") {
+ $files = `git ls-files "include/*.h"`;
+ @include_files = split('\n', $files);
+ }
+
+ foreach my $file (@include_files) {
+ seed_camelcase_file($file);
+ }
+
+ if ($camelcase_cache ne "") {
+ unlink glob ".checkpatch-camelcase.*";
+ open(my $camelcase_file, '>', "$camelcase_cache")
+ or warn "$P: Can't write '$camelcase_cache' $!\n";
+ foreach (sort { lc($a) cmp lc($b) } keys(%camelcase)) {
+ print $camelcase_file ("$_\n");
+ }
+ close($camelcase_file);
+ }
+}
+
$chk_signoff = 0 if ($file);
my @rawlines = ();
my @lines = ();
+my @fixed = ();
my $vname;
for my $filename (@ARGV) {
my $FILE;
}
@rawlines = ();
@lines = ();
+ @fixed = ();
}
exit($exit);
my ($root) = @_;
my @tree_check = (
- "COPYING", "CREDITS", "Kbuild", "Makefile",
+ "COPYING", "CREDITS", "Kbuild", "MAINTAINERS", "Makefile",
"README", "Documentation", "arch", "include", "drivers",
"fs", "init", "ipc", "kernel", "lib", "scripts",
);
$comment = $2 if defined $2;
$formatted_email =~ s/$address.*$//;
$name = $formatted_email;
- $name =~ s/^\s+|\s+$//g;
+ $name = trim($name);
$name =~ s/^\"|\"$//g;
# If there's a name left after stripping spaces and
# leading quotes, and the address doesn't have both
}
}
- $name =~ s/^\s+|\s+$//g;
+ $name = trim($name);
$name =~ s/^\"|\"$//g;
- $address =~ s/^\s+|\s+$//g;
+ $address = trim($address);
$address =~ s/^\<|\>$//g;
if ($name =~ /[^\w \-]/i) { ##has "must quote" chars
my $formatted_email;
- $name =~ s/^\s+|\s+$//g;
+ $name = trim($name);
$name =~ s/^\"|\"$//g;
- $address =~ s/^\s+|\s+$//g;
+ $address = trim($address);
if ($name =~ /[^\w \-]/i) { ##has "must quote" chars
$name =~ s/(?<!\\)"/\\"/g; ##escape quotes
return $res;
}
+sub get_quoted_string {
+ my ($line, $rawline) = @_;
+
+ return "" if ($line !~ m/(\"[X]+\")/g);
+ return substr($rawline, $-[0], $+[0] - $-[0]);
+}
+
sub ctx_statement_block {
my ($linenr, $remain, $off) = @_;
my $line = $linenr - 1;
my $prefix = '';
sub show_type {
- return !defined $ignore_type{$_[0]};
+ return defined $use_type{$_[0]} if (scalar keys %use_type > 0);
+
+ return !defined $ignore_type{$_[0]};
}
sub report {
if (report("ERROR", $_[0], $_[1])) {
our $clean = 0;
our $cnt_error++;
+ return 1;
}
+ return 0;
}
sub WARN {
if (report("WARNING", $_[0], $_[1])) {
our $clean = 0;
our $cnt_warn++;
+ return 1;
}
+ return 0;
}
sub CHK {
if ($check && report("CHECK", $_[0], $_[1])) {
our $clean = 0;
our $cnt_chk++;
+ return 1;
}
+ return 0;
}
sub check_absolute_file {
}
}
+sub trim {
+ my ($string) = @_;
+
+ $string =~ s/^\s+|\s+$//g;
+
+ return $string;
+}
+
+sub ltrim {
+ my ($string) = @_;
+
+ $string =~ s/^\s+//;
+
+ return $string;
+}
+
+sub rtrim {
+ my ($string) = @_;
+
+ $string =~ s/\s+$//;
+
+ return $string;
+}
+
+sub string_find_replace {
+ my ($string, $find, $replace) = @_;
+
+ $string =~ s/$find/$replace/g;
+
+ return $string;
+}
+
+sub tabify {
+ my ($leading) = @_;
+
+ my $source_indent = 8;
+ my $max_spaces_before_tab = $source_indent - 1;
+ my $spaces_to_tab = " " x $source_indent;
+
+ #convert leading spaces to tabs
+ 1 while $leading =~ s@^([\t]*)$spaces_to_tab@$1\t@g;
+ #Remove spaces before a tab
+ 1 while $leading =~ s@^([\t]*)( {1,$max_spaces_before_tab})\t@$1\t@g;
+
+ return "$leading";
+}
+
sub pos_last_openparen {
my ($line) = @_;
my %suppress_export;
my $suppress_statement = 0;
- my %camelcase = ();
+ my %signatures = ();
# Pre-scan the patch sanitizing the lines.
# Pre-scan the patch looking for any __setup documentation.
my @setup_docs = ();
my $setup_docs = 0;
+ my $camelcase_file_seeded = 0;
+
sanitise_line_reset();
my $line;
foreach my $rawline (@rawlines) {
$linenr++;
$line = $rawline;
+ push(@fixed, $rawline) if ($fix);
+
if ($rawline=~/^\+\+\+\s+(\S+)/) {
$setup_docs = 0;
if ($1 =~ m@Documentation/kernel-parameters.txt$@) {
$linenr = 0;
foreach my $line (@lines) {
$linenr++;
+ my $sline = $line; #copy of $line
+ $sline =~ s/$;/ /g; #with comments as spaces
my $rawline = $rawlines[$linenr - 1];
# extract the filename as it passes
if ($line =~ /^diff --git.*?(\S+)$/) {
$realfile = $1;
- $realfile =~ s@^([^/]*)/@@;
+ $realfile =~ s@^([^/]*)/@@ if (!$file);
$in_commit_log = 0;
} elsif ($line =~ /^\+\+\+\s+(\S+)/) {
$realfile = $1;
- $realfile =~ s@^([^/]*)/@@;
+ $realfile =~ s@^([^/]*)/@@ if (!$file);
$in_commit_log = 0;
$p1_prefix = $1;
# Check for incorrect file permissions
if ($line =~ /^new (file )?mode.*[7531]\d{0,2}$/) {
my $permhere = $here . "FILE: $realfile\n";
- if ($realfile =~ /(Makefile|Kconfig|\.c|\.h|\.S|\.tmpl)$/) {
+ if ($realfile !~ m@scripts/@ &&
+ $realfile !~ /\.(py|pl|awk|sh)$/) {
ERROR("EXECUTE_PERMISSIONS",
"do not set execute permissions for source files\n" . $permhere);
}
"Non-standard signature: $sign_off\n" . $herecurr);
}
if (defined $space_before && $space_before ne "") {
- WARN("BAD_SIGN_OFF",
- "Do not use whitespace before $ucfirst_sign_off\n" . $herecurr);
+ if (WARN("BAD_SIGN_OFF",
+ "Do not use whitespace before $ucfirst_sign_off\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =
+ "$ucfirst_sign_off $email";
+ }
}
if ($sign_off =~ /-by:$/i && $sign_off ne $ucfirst_sign_off) {
- WARN("BAD_SIGN_OFF",
- "'$ucfirst_sign_off' is the preferred signature form\n" . $herecurr);
+ if (WARN("BAD_SIGN_OFF",
+ "'$ucfirst_sign_off' is the preferred signature form\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =
+ "$ucfirst_sign_off $email";
+ }
+
}
if (!defined $space_after || $space_after ne " ") {
- WARN("BAD_SIGN_OFF",
- "Use a single space after $ucfirst_sign_off\n" . $herecurr);
+ if (WARN("BAD_SIGN_OFF",
+ "Use a single space after $ucfirst_sign_off\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =
+ "$ucfirst_sign_off $email";
+ }
}
my ($email_name, $email_address, $comment) = parse_email($email);
"email address '$email' might be better as '$suggested_email$comment'\n" . $herecurr);
}
}
+
+# Check for duplicate signatures
+ my $sig_nospace = $line;
+ $sig_nospace =~ s/\s//g;
+ $sig_nospace = lc($sig_nospace);
+ if (defined $signatures{$sig_nospace}) {
+ WARN("BAD_SIGN_OFF",
+ "Duplicate signature\n" . $herecurr);
+ } else {
+ $signatures{$sig_nospace} = 1;
+ }
}
# Check for wrappage within a valid hunk of the file
#trailing whitespace
if ($line =~ /^\+.*\015/) {
my $herevet = "$here\n" . cat_vet($rawline) . "\n";
- ERROR("DOS_LINE_ENDINGS",
- "DOS line endings\n" . $herevet);
-
+ if (ERROR("DOS_LINE_ENDINGS",
+ "DOS line endings\n" . $herevet) &&
+ $fix) {
+ $fixed[$linenr - 1] =~ s/[\s\015]+$//;
+ }
} elsif ($rawline =~ /^\+.*\S\s+$/ || $rawline =~ /^\+\s+$/) {
my $herevet = "$here\n" . cat_vet($rawline) . "\n";
- ERROR("TRAILING_WHITESPACE",
- "trailing whitespace\n" . $herevet);
+ if (ERROR("TRAILING_WHITESPACE",
+ "trailing whitespace\n" . $herevet) &&
+ $fix) {
+ $fixed[$linenr - 1] =~ s/\s+$//;
+ }
+
$rpt_cleaners = 1;
}
+# Check for FSF mailing addresses.
+ if ($rawline =~ /\bwrite to the Free/i ||
+ $rawline =~ /\b59\s+Temple\s+Pl/i ||
+ $rawline =~ /\b51\s+Franklin\s+St/i) {
+ my $herevet = "$here\n" . cat_vet($rawline) . "\n";
+ my $msg_type = \&ERROR;
+ $msg_type = \&CHK if ($file);
+ &{$msg_type}("FSF_MAILING_ADDRESS",
+ "Do not include the paragraph about writing to the Free Software Foundation's mailing address from the sample GPL notice. The FSF has changed addresses in the past, and may do so again. Linux already includes a copy of the GPL.\n" . $herevet)
+ }
+
# check for Kconfig help text having a real description
# Only applies when adding the entry originally, after that we do not have
# sufficient context to determine whether it is indeed long enough.
"Use of $flag is deprecated, please use \`$replacement->{$flag} instead.\n" . $herecurr) if ($replacement->{$flag});
}
+# check for DT compatible documentation
+ if (defined $root && $realfile =~ /\.dts/ &&
+ $rawline =~ /^\+\s*compatible\s*=/) {
+ my @compats = $rawline =~ /\"([a-zA-Z0-9\-\,\.\+_]+)\"/g;
+
+ foreach my $compat (@compats) {
+ my $compat2 = $compat;
+ my $dt_path = $root . "/Documentation/devicetree/bindings/";
+ $compat2 =~ s/\,[a-z]*\-/\,<\.\*>\-/;
+ `grep -Erq "$compat|$compat2" $dt_path`;
+ if ( $? >> 8 ) {
+ WARN("UNDOCUMENTED_DT_STRING",
+ "DT compatible string \"$compat\" appears un-documented -- check $dt_path\n" . $herecurr);
+ }
+
+ my $vendor = $compat;
+ my $vendor_path = $dt_path . "vendor-prefixes.txt";
+ next if (! -f $vendor_path);
+ $vendor =~ s/^([a-zA-Z0-9]+)\,.*/$1/;
+ `grep -Eq "$vendor" $vendor_path`;
+ if ( $? >> 8 ) {
+ WARN("UNDOCUMENTED_DT_STRING",
+ "DT compatible string vendor \"$vendor\" appears un-documented -- check $vendor_path\n" . $herecurr);
+ }
+ }
+ }
+
# check we are in a valid source file if not then ignore this hunk
next if ($realfile !~ /\.(h|c|s|S|pl|sh)$/);
}
# Check for user-visible strings broken across lines, which breaks the ability
-# to grep for the string. Limited to strings used as parameters (those
-# following an open parenthesis), which almost completely eliminates false
-# positives, as well as warning only once per parameter rather than once per
-# line of the string. Make an exception when the previous string ends in a
-# newline (multiple lines in one string constant) or \n\t (common in inline
-# assembly to indent the instruction on the following line).
+# to grep for the string. Make exceptions when the previous string ends in a
+# newline (multiple lines in one string constant) or '\t', '\r', ';', or '{'
+# (common in inline assembly) or is a octal \123 or hexadecimal \xaf value
if ($line =~ /^\+\s*"/ &&
$prevline =~ /"\s*$/ &&
- $prevline =~ /\(/ &&
- $prevrawline !~ /\\n(?:\\t)*"\s*$/) {
+ $prevrawline !~ /(?:\\(?:[ntr]|[0-7]{1,3}|x[0-9a-fA-F]{1,2})|;\s*|\{\s*)"\s*$/) {
WARN("SPLIT_STRING",
"quoted string split across lines\n" . $hereprev);
}
# check for spaces before a quoted newline
if ($rawline =~ /^.*\".*\s\\n/) {
- WARN("QUOTED_WHITESPACE_BEFORE_NEWLINE",
- "unnecessary whitespace before a quoted newline\n" . $herecurr);
+ if (WARN("QUOTED_WHITESPACE_BEFORE_NEWLINE",
+ "unnecessary whitespace before a quoted newline\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~ s/^(\+.*\".*)\s+\\n/$1\\n/;
+ }
+
}
# check for adding lines without a newline.
if ($rawline =~ /^\+\s* \t\s*\S/ ||
$rawline =~ /^\+\s* \s*/) {
my $herevet = "$here\n" . cat_vet($rawline) . "\n";
- ERROR("CODE_INDENT",
- "code indent should use tabs where possible\n" . $herevet);
$rpt_cleaners = 1;
+ if (ERROR("CODE_INDENT",
+ "code indent should use tabs where possible\n" . $herevet) &&
+ $fix) {
+ $fixed[$linenr - 1] =~ s/^\+([ \t]+)/"\+" . tabify($1)/e;
+ }
}
# check for space before tabs.
if ($rawline =~ /^\+/ && $rawline =~ / \t/) {
my $herevet = "$here\n" . cat_vet($rawline) . "\n";
- WARN("SPACE_BEFORE_TAB",
- "please, no space before tabs\n" . $herevet);
+ if (WARN("SPACE_BEFORE_TAB",
+ "please, no space before tabs\n" . $herevet) &&
+ $fix) {
+ while ($fixed[$linenr - 1] =~
+ s/(^\+.*) {8,8}+\t/$1\t\t/) {}
+ while ($fixed[$linenr - 1] =~
+ s/(^\+.*) +\t/$1\t/) {}
+ }
}
# check for && or || at the start of a line
if ($newindent ne $goodtabindent &&
$newindent ne $goodspaceindent) {
- CHK("PARENTHESIS_ALIGNMENT",
- "Alignment should match open parenthesis\n" . $hereprev);
+
+ if (CHK("PARENTHESIS_ALIGNMENT",
+ "Alignment should match open parenthesis\n" . $hereprev) &&
+ $fix && $line =~ /^\+/) {
+ $fixed[$linenr - 1] =~
+ s/^\+[ \t]*/\+$goodtabindent/;
+ }
}
}
}
- if ($line =~ /^\+.*\*[ \t]*\)[ \t]+/) {
- CHK("SPACING",
- "No space is necessary after a cast\n" . $hereprev);
+ if ($line =~ /^\+.*\*[ \t]*\)[ \t]+(?!$Assignment|$Arithmetic)/) {
+ if (CHK("SPACING",
+ "No space is necessary after a cast\n" . $hereprev) &&
+ $fix) {
+ $fixed[$linenr - 1] =~
+ s/^(\+.*\*[ \t]*\))[ \t]+/$1/;
+ }
}
if ($realfile =~ m@^(drivers/net/|net/)@ &&
- $rawline =~ /^\+[ \t]*\/\*[ \t]*$/ &&
- $prevrawline =~ /^\+[ \t]*$/) {
+ $prevrawline =~ /^\+[ \t]*\/\*[ \t]*$/ &&
+ $rawline =~ /^\+[ \t]*\*/) {
WARN("NETWORKING_BLOCK_COMMENT_STYLE",
"networking block comments don't use an empty /* line, use /* Comment...\n" . $hereprev);
}
+ if ($realfile =~ m@^(drivers/net/|net/)@ &&
+ $prevrawline =~ /^\+[ \t]*\/\*/ && #starting /*
+ $prevrawline !~ /\*\/[ \t]*$/ && #no trailing */
+ $rawline =~ /^\+/ && #line is new
+ $rawline !~ /^\+[ \t]*\*/) { #no leading *
+ WARN("NETWORKING_BLOCK_COMMENT_STYLE",
+ "networking block comments start with * on subsequent lines\n" . $hereprev);
+ }
+
if ($realfile =~ m@^(drivers/net/|net/)@ &&
$rawline !~ m@^\+[ \t]*\*/[ \t]*$@ && #trailing */
$rawline !~ m@^\+.*/\*.*\*/[ \t]*$@ && #inline /*...*/
# 1) within comments
# 2) indented preprocessor commands
# 3) hanging labels
- if ($rawline =~ /^\+ / && $line !~ /\+ *(?:$;|#|$Ident:)/) {
+ if ($rawline =~ /^\+ / && $line !~ /^\+ *(?:$;|#|$Ident:)/) {
my $herevet = "$here\n" . cat_vet($rawline) . "\n";
- WARN("LEADING_SPACE",
- "please, no spaces at the start of a line\n" . $herevet);
+ if (WARN("LEADING_SPACE",
+ "please, no spaces at the start of a line\n" . $herevet) &&
+ $fix) {
+ $fixed[$linenr - 1] =~ s/^\+([ \t]+)/"\+" . tabify($1)/e;
+ }
}
# check we are in a valid C source file if not then ignore this hunk
$realline_next);
#print "LINE<$line>\n";
if ($linenr >= $suppress_statement &&
- $realcnt && $line =~ /.\s*\S/) {
+ $realcnt && $sline =~ /.\s*\S/) {
($stat, $cond, $line_nr_next, $remain_next, $off_next) =
ctx_statement_block($linenr, $realcnt, 0);
$stat =~ s/\n./\n /g;
$prev_values = substr($curr_values, -1);
#ignore lines not being added
- if ($line=~/^[^\+]/) {next;}
+ next if ($line =~ /^[^\+]/);
# TEST: allow direct testing of the type matcher.
if ($dbg_type) {
# no C99 // comments
if ($line =~ m{//}) {
- ERROR("C99_COMMENTS",
- "do not use C99 // comments\n" . $herecurr);
+ if (ERROR("C99_COMMENTS",
+ "do not use C99 // comments\n" . $herecurr) &&
+ $fix) {
+ my $line = $fixed[$linenr - 1];
+ if ($line =~ /\/\/(.*)$/) {
+ my $comment = trim($1);
+ $fixed[$linenr - 1] =~ s@\/\/(.*)$@/\* $comment \*/@;
+ }
+ }
}
# Remove C99 comments.
$line =~ s@//.*@@;
}
# check for global initialisers.
- if ($line =~ /^.$Type\s*$Ident\s*(?:\s+$Modifier)*\s*=\s*(0|NULL|false)\s*;/) {
- ERROR("GLOBAL_INITIALISERS",
- "do not initialise globals to 0 or NULL\n" .
- $herecurr);
+ if ($line =~ /^\+(\s*$Type\s*$Ident\s*(?:\s+$Modifier))*\s*=\s*(0|NULL|false)\s*;/) {
+ if (ERROR("GLOBAL_INITIALISERS",
+ "do not initialise globals to 0 or NULL\n" .
+ $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~ s/($Type\s*$Ident\s*(?:\s+$Modifier))*\s*=\s*(0|NULL|false)\s*;/$1;/;
+ }
}
# check for static initialisers.
- if ($line =~ /\bstatic\s.*=\s*(0|NULL|false)\s*;/) {
- ERROR("INITIALISED_STATIC",
- "do not initialise statics to 0 or NULL\n" .
- $herecurr);
+ if ($line =~ /^\+.*\bstatic\s.*=\s*(0|NULL|false)\s*;/) {
+ if (ERROR("INITIALISED_STATIC",
+ "do not initialise statics to 0 or NULL\n" .
+ $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~ s/(\bstatic\s.*?)\s*=\s*(0|NULL|false)\s*;/$1;/;
+ }
}
# check for static const char * arrays.
$herecurr);
}
-# check for declarations of struct pci_device_id
- if ($line =~ /\bstruct\s+pci_device_id\s+\w+\s*\[\s*\]\s*\=\s*\{/) {
- WARN("DEFINE_PCI_DEVICE_TABLE",
- "Use DEFINE_PCI_DEVICE_TABLE for struct pci_device_id\n" . $herecurr);
+# check for function declarations without arguments like "int foo()"
+ if ($line =~ /(\b$Type\s+$Ident)\s*\(\s*\)/) {
+ if (ERROR("FUNCTION_WITHOUT_ARGS",
+ "Bad function definition - $1() should probably be $1(void)\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~ s/(\b($Type)\s+($Ident))\s*\(\s*\)/$2 $3(void)/;
+ }
+ }
+
+# check for uses of DEFINE_PCI_DEVICE_TABLE
+ if ($line =~ /\bDEFINE_PCI_DEVICE_TABLE\s*\(\s*(\w+)\s*\)\s*=/) {
+ if (WARN("DEFINE_PCI_DEVICE_TABLE",
+ "Prefer struct pci_device_id over deprecated DEFINE_PCI_DEVICE_TABLE\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~ s/\b(?:static\s+|)DEFINE_PCI_DEVICE_TABLE\s*\(\s*(\w+)\s*\)\s*=\s*/static const struct pci_device_id $1\[\] = /;
+ }
}
# check for new typedefs, only function parameters and sparse annotations
# (char*[ const])
while ($line =~ m{(\($NonptrType(\s*(?:$Modifier\b\s*|\*\s*)+)\))}g) {
#print "AA<$1>\n";
- my ($from, $to) = ($2, $2);
+ my ($ident, $from, $to) = ($1, $2, $2);
# Should start with a space.
$to =~ s/^(\S)/ $1/;
while ($to =~ s/\*\s+\*/\*\*/) {
}
- #print "from<$from> to<$to>\n";
+## print "1: from<$from> to<$to> ident<$ident>\n";
if ($from ne $to) {
- ERROR("POINTER_LOCATION",
- "\"(foo$from)\" should be \"(foo$to)\"\n" . $herecurr);
+ if (ERROR("POINTER_LOCATION",
+ "\"(foo$from)\" should be \"(foo$to)\"\n" . $herecurr) &&
+ $fix) {
+ my $sub_from = $ident;
+ my $sub_to = $ident;
+ $sub_to =~ s/\Q$from\E/$to/;
+ $fixed[$linenr - 1] =~
+ s@\Q$sub_from\E@$sub_to@;
+ }
}
}
while ($line =~ m{(\b$NonptrType(\s*(?:$Modifier\b\s*|\*\s*)+)($Ident))}g) {
#print "BB<$1>\n";
- my ($from, $to, $ident) = ($2, $2, $3);
+ my ($match, $from, $to, $ident) = ($1, $2, $2, $3);
# Should start with a space.
$to =~ s/^(\S)/ $1/;
# Modifiers should have spaces.
$to =~ s/(\b$Modifier$)/$1 /;
- #print "from<$from> to<$to> ident<$ident>\n";
+## print "2: from<$from> to<$to> ident<$ident>\n";
if ($from ne $to && $ident !~ /^$Modifier$/) {
- ERROR("POINTER_LOCATION",
- "\"foo${from}bar\" should be \"foo${to}bar\"\n" . $herecurr);
+ if (ERROR("POINTER_LOCATION",
+ "\"foo${from}bar\" should be \"foo${to}bar\"\n" . $herecurr) &&
+ $fix) {
+
+ my $sub_from = $match;
+ my $sub_to = $match;
+ $sub_to =~ s/\Q$from\E/$to/;
+ $fixed[$linenr - 1] =~
+ s@\Q$sub_from\E@$sub_to@;
+ }
}
}
}
if ($line =~ /\bpr_warning\s*\(/) {
- WARN("PREFER_PR_LEVEL",
- "Prefer pr_warn(... to pr_warning(...\n" . $herecurr);
+ if (WARN("PREFER_PR_LEVEL",
+ "Prefer pr_warn(... to pr_warning(...\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~
+ s/\bpr_warning\b/pr_warn/;
+ }
}
if ($line =~ /\bdev_printk\s*\(\s*KERN_([A-Z]+)/) {
}
# missing space after union, struct or enum definition
- if ($line =~ /^.\s*(?:typedef\s+)?(enum|union|struct)(?:\s+$Ident)?(?:\s+$Ident)?[=\{]/) {
- WARN("SPACING",
- "missing space after $1 definition\n" . $herecurr);
+ if ($line =~ /^.\s*(?:typedef\s+)?(enum|union|struct)(?:\s+$Ident){1,2}[=\{]/) {
+ if (WARN("SPACING",
+ "missing space after $1 definition\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~
+ s/^(.\s*(?:typedef\s+)?(?:enum|union|struct)(?:\s+$Ident){1,2})([=\{])/$1 $2/;
+ }
+ }
+
+# Function pointer declarations
+# check spacing between type, funcptr, and args
+# canonical declaration is "type (*funcptr)(args...)"
+#
+# the $Declare variable will capture all spaces after the type
+# so check it for trailing missing spaces or multiple spaces
+ if ($line =~ /^.\s*($Declare)\((\s*)\*(\s*)$Ident(\s*)\)(\s*)\(/) {
+ my $declare = $1;
+ my $pre_pointer_space = $2;
+ my $post_pointer_space = $3;
+ my $funcname = $4;
+ my $post_funcname_space = $5;
+ my $pre_args_space = $6;
+
+ if ($declare !~ /\s$/) {
+ WARN("SPACING",
+ "missing space after return type\n" . $herecurr);
+ }
+
+# unnecessary space "type (*funcptr)(args...)"
+ elsif ($declare =~ /\s{2,}$/) {
+ WARN("SPACING",
+ "Multiple spaces after return type\n" . $herecurr);
+ }
+
+# unnecessary space "type ( *funcptr)(args...)"
+ if (defined $pre_pointer_space &&
+ $pre_pointer_space =~ /^\s/) {
+ WARN("SPACING",
+ "Unnecessary space after function pointer open parenthesis\n" . $herecurr);
+ }
+
+# unnecessary space "type (* funcptr)(args...)"
+ if (defined $post_pointer_space &&
+ $post_pointer_space =~ /^\s/) {
+ WARN("SPACING",
+ "Unnecessary space before function pointer name\n" . $herecurr);
+ }
+
+# unnecessary space "type (*funcptr )(args...)"
+ if (defined $post_funcname_space &&
+ $post_funcname_space =~ /^\s/) {
+ WARN("SPACING",
+ "Unnecessary space after function pointer name\n" . $herecurr);
+ }
+
+# unnecessary space "type (*funcptr) (args...)"
+ if (defined $pre_args_space &&
+ $pre_args_space =~ /^\s/) {
+ WARN("SPACING",
+ "Unnecessary space before function pointer arguments\n" . $herecurr);
+ }
+
+ if (show_type("SPACING") && $fix) {
+ $fixed[$linenr - 1] =~
+ s/^(.\s*$Declare)\(\s*\*\s*($Ident)\s*\)\s*\(/rtrim($1) . " " . "\(\*$2\)\("/ex;
+ }
}
# check for spacing round square brackets; allowed:
if ($prefix !~ /$Type\s+$/ &&
($where != 0 || $prefix !~ /^.\s+$/) &&
$prefix !~ /[{,]\s+$/) {
- ERROR("BRACKET_SPACE",
- "space prohibited before open square bracket '['\n" . $herecurr);
+ if (ERROR("BRACKET_SPACE",
+ "space prohibited before open square bracket '['\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~
+ s/^(\+.*?)\s+\[/$1\[/;
+ }
}
}
__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 =~ /$Type$/) {
} else {
- WARN("SPACING",
- "space prohibited between function name and open parenthesis '('\n" . $herecurr);
+ if (WARN("SPACING",
+ "space prohibited between function name and open parenthesis '('\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~
+ s/\b$name\s+\(/$name\(/;
+ }
}
}
-# check for whitespace before a non-naked semicolon
- if ($line =~ /^\+.*\S\s+;/) {
- CHK("SPACING",
- "space prohibited before semicolon\n" . $herecurr);
- }
-
# Check operator spacing.
if (!($line=~/\#\s*include/)) {
+ my $fixed_line = "";
+ my $line_fixed = 0;
+
my $ops = qr{
<<=|>>=|<=|>=|==|!=|
\+=|-=|\*=|\/=|%=|\^=|\|=|&=|
=>|->|<<|>>|<|>|=|!|~|
&&|\|\||,|\^|\+\+|--|&|\||\+|-|\*|\/|%|
- \?|:
+ \?:|\?|:
}x;
my @elements = split(/($ops|;)/, $opline);
+
+## print("element count: <" . $#elements . ">\n");
+## foreach my $el (@elements) {
+## print("el: <$el>\n");
+## }
+
+ my @fix_elements = ();
my $off = 0;
+ foreach my $el (@elements) {
+ push(@fix_elements, substr($rawline, $off, length($el)));
+ $off += length($el);
+ }
+
+ $off = 0;
+
my $blank = copy_spacing($opline);
+ my $last_after = -1;
for (my $n = 0; $n < $#elements; $n += 2) {
+
+ my $good = $fix_elements[$n] . $fix_elements[$n + 1];
+
+## print("n: <$n> good: <$good>\n");
+
$off += length($elements[$n]);
# Pick up the preceding and succeeding characters.
} elsif ($op eq ';') {
if ($ctx !~ /.x[WEBC]/ &&
$cc !~ /^\\/ && $cc !~ /^;/) {
- ERROR("SPACING",
- "space required after that '$op' $at\n" . $hereptr);
+ if (ERROR("SPACING",
+ "space required after that '$op' $at\n" . $hereptr)) {
+ $good = $fix_elements[$n] . trim($fix_elements[$n + 1]) . " ";
+ $line_fixed = 1;
+ }
}
# // is a comment
# : when part of a bitfield
} elsif ($op eq '->' || $opv eq ':B') {
if ($ctx =~ /Wx.|.xW/) {
- ERROR("SPACING",
- "spaces prohibited around that '$op' $at\n" . $hereptr);
+ if (ERROR("SPACING",
+ "spaces prohibited around that '$op' $at\n" . $hereptr)) {
+ $good = rtrim($fix_elements[$n]) . trim($fix_elements[$n + 1]);
+ if (defined $fix_elements[$n + 2]) {
+ $fix_elements[$n + 2] =~ s/^\s+//;
+ }
+ $line_fixed = 1;
+ }
}
# , must have a space on the right.
} elsif ($op eq ',') {
if ($ctx !~ /.x[WEC]/ && $cc !~ /^}/) {
- ERROR("SPACING",
- "space required after that '$op' $at\n" . $hereptr);
+ if (ERROR("SPACING",
+ "space required after that '$op' $at\n" . $hereptr)) {
+ $good = $fix_elements[$n] . trim($fix_elements[$n + 1]) . " ";
+ $line_fixed = 1;
+ $last_after = $n;
+ }
}
# '*' as part of a type definition -- reported already.
$opv eq '*U' || $opv eq '-U' ||
$opv eq '&U' || $opv eq '&&U') {
if ($ctx !~ /[WEBC]x./ && $ca !~ /(?:\)|!|~|\*|-|\&|\||\+\+|\-\-|\{)$/) {
- ERROR("SPACING",
- "space required before that '$op' $at\n" . $hereptr);
+ if (ERROR("SPACING",
+ "space required before that '$op' $at\n" . $hereptr)) {
+ if ($n != $last_after + 2) {
+ $good = $fix_elements[$n] . " " . ltrim($fix_elements[$n + 1]);
+ $line_fixed = 1;
+ }
+ }
}
if ($op eq '*' && $cc =~/\s*$Modifier\b/) {
# A unary '*' may be const
} elsif ($ctx =~ /.xW/) {
- ERROR("SPACING",
- "space prohibited after that '$op' $at\n" . $hereptr);
+ if (ERROR("SPACING",
+ "space prohibited after that '$op' $at\n" . $hereptr)) {
+ $good = $fix_elements[$n] . rtrim($fix_elements[$n + 1]);
+ if (defined $fix_elements[$n + 2]) {
+ $fix_elements[$n + 2] =~ s/^\s+//;
+ }
+ $line_fixed = 1;
+ }
}
# unary ++ and unary -- are allowed no space on one side.
} elsif ($op eq '++' or $op eq '--') {
if ($ctx !~ /[WEOBC]x[^W]/ && $ctx !~ /[^W]x[WOBEC]/) {
- ERROR("SPACING",
- "space required one side of that '$op' $at\n" . $hereptr);
+ if (ERROR("SPACING",
+ "space required one side of that '$op' $at\n" . $hereptr)) {
+ $good = $fix_elements[$n] . trim($fix_elements[$n + 1]) . " ";
+ $line_fixed = 1;
+ }
}
if ($ctx =~ /Wx[BE]/ ||
($ctx =~ /Wx./ && $cc =~ /^;/)) {
- ERROR("SPACING",
- "space prohibited before that '$op' $at\n" . $hereptr);
+ if (ERROR("SPACING",
+ "space prohibited before that '$op' $at\n" . $hereptr)) {
+ $good = rtrim($fix_elements[$n]) . trim($fix_elements[$n + 1]);
+ $line_fixed = 1;
+ }
}
if ($ctx =~ /ExW/) {
- ERROR("SPACING",
- "space prohibited after that '$op' $at\n" . $hereptr);
+ if (ERROR("SPACING",
+ "space prohibited after that '$op' $at\n" . $hereptr)) {
+ $good = $fix_elements[$n] . trim($fix_elements[$n + 1]);
+ if (defined $fix_elements[$n + 2]) {
+ $fix_elements[$n + 2] =~ s/^\s+//;
+ }
+ $line_fixed = 1;
+ }
}
-
# << and >> may either have or not have spaces both sides
} elsif ($op eq '<<' or $op eq '>>' or
$op eq '&' or $op eq '^' or $op eq '|' or
$op eq '%')
{
if ($ctx =~ /Wx[^WCE]|[^WCE]xW/) {
- ERROR("SPACING",
- "need consistent spacing around '$op' $at\n" .
- $hereptr);
+ if (ERROR("SPACING",
+ "need consistent spacing around '$op' $at\n" . $hereptr)) {
+ $good = rtrim($fix_elements[$n]) . " " . trim($fix_elements[$n + 1]) . " ";
+ if (defined $fix_elements[$n + 2]) {
+ $fix_elements[$n + 2] =~ s/^\s+//;
+ }
+ $line_fixed = 1;
+ }
}
# A colon needs no spaces before when it is
# terminating a case value or a label.
} elsif ($opv eq ':C' || $opv eq ':L') {
if ($ctx =~ /Wx./) {
- ERROR("SPACING",
- "space prohibited before that '$op' $at\n" . $hereptr);
+ if (ERROR("SPACING",
+ "space prohibited before that '$op' $at\n" . $hereptr)) {
+ $good = rtrim($fix_elements[$n]) . trim($fix_elements[$n + 1]);
+ $line_fixed = 1;
+ }
}
# All the others need spaces both sides.
($op eq '>' &&
$ca =~ /<\S+\@\S+$/))
{
- $ok = 1;
- }
-
- # Ignore ?:
- if (($opv eq ':O' && $ca =~ /\?$/) ||
- ($op eq '?' && $cc =~ /^:/)) {
- $ok = 1;
+ $ok = 1;
}
+ # messages are ERROR, but ?: are CHK
if ($ok == 0) {
- ERROR("SPACING",
- "spaces required around that '$op' $at\n" . $hereptr);
+ my $msg_type = \&ERROR;
+ $msg_type = \&CHK if (($op eq '?:' || $op eq '?' || $op eq ':') && $ctx =~ /VxV/);
+
+ if (&{$msg_type}("SPACING",
+ "spaces required around that '$op' $at\n" . $hereptr)) {
+ $good = rtrim($fix_elements[$n]) . " " . trim($fix_elements[$n + 1]) . " ";
+ if (defined $fix_elements[$n + 2]) {
+ $fix_elements[$n + 2] =~ s/^\s+//;
+ }
+ $line_fixed = 1;
+ }
}
}
$off += length($elements[$n + 1]);
+
+## print("n: <$n> GOOD: <$good>\n");
+
+ $fixed_line = $fixed_line . $good;
+ }
+
+ if (($#elements % 2) == 0) {
+ $fixed_line = $fixed_line . $fix_elements[$#elements];
+ }
+
+ if ($fix && $line_fixed && $fixed_line ne $fixed[$linenr - 1]) {
+ $fixed[$linenr - 1] = $fixed_line;
+ }
+
+
+ }
+
+# check for whitespace before a non-naked semicolon
+ if ($line =~ /^\+.*\S\s+;\s*$/) {
+ if (WARN("SPACING",
+ "space prohibited before semicolon\n" . $herecurr) &&
+ $fix) {
+ 1 while $fixed[$linenr - 1] =~
+ s/^(\+.*\S)\s+;/$1;/;
}
}
#need space before brace following if, while, etc
if (($line =~ /\(.*\){/ && $line !~ /\($Type\){/) ||
$line =~ /do{/) {
- ERROR("SPACING",
- "space required before the open brace '{'\n" . $herecurr);
+ if (ERROR("SPACING",
+ "space required before the open brace '{'\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~ s/^(\+.*(?:do|\))){/$1 {/;
+ }
}
+## # check for blank lines before declarations
+## if ($line =~ /^.\t+$Type\s+$Ident(?:\s*=.*)?;/ &&
+## $prevrawline =~ /^.\s*$/) {
+## WARN("SPACING",
+## "No blank lines before declarations\n" . $hereprev);
+## }
+##
+
# closing brace should have a space following it when it has anything
# on the line
if ($line =~ /}(?!(?:,|;|\)))\S/) {
- ERROR("SPACING",
- "space required after that close brace '}'\n" . $herecurr);
+ if (ERROR("SPACING",
+ "space required after that close brace '}'\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~
+ s/}((?!(?:,|;|\)))\S)/} $1/;
+ }
}
# check spacing on square brackets
if ($line =~ /\[\s/ && $line !~ /\[\s*$/) {
- ERROR("SPACING",
- "space prohibited after that open square bracket '['\n" . $herecurr);
+ if (ERROR("SPACING",
+ "space prohibited after that open square bracket '['\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~
+ s/\[\s+/\[/;
+ }
}
if ($line =~ /\s\]/) {
- ERROR("SPACING",
- "space prohibited before that close square bracket ']'\n" . $herecurr);
+ if (ERROR("SPACING",
+ "space prohibited before that close square bracket ']'\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~
+ s/\s+\]/\]/;
+ }
}
# check spacing on parentheses
if ($line =~ /\(\s/ && $line !~ /\(\s*(?:\\)?$/ &&
$line !~ /for\s*\(\s+;/) {
- ERROR("SPACING",
- "space prohibited after that open parenthesis '('\n" . $herecurr);
+ if (ERROR("SPACING",
+ "space prohibited after that open parenthesis '('\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~
+ s/\(\s+/\(/;
+ }
}
if ($line =~ /(\s+)\)/ && $line !~ /^.\s*\)/ &&
$line !~ /for\s*\(.*;\s+\)/ &&
$line !~ /:\s+\)/) {
- ERROR("SPACING",
- "space prohibited before that close parenthesis ')'\n" . $herecurr);
+ if (ERROR("SPACING",
+ "space prohibited before that close parenthesis ')'\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~
+ s/\s+\)/\)/;
+ }
}
#goto labels aren't indented, allow a single space however
if ($line=~/^.\s+[A-Za-z\d_]+:(?![0-9]+)/ and
!($line=~/^. [A-Za-z\d_]+:/) and !($line=~/^.\s+default:/)) {
- WARN("INDENTED_LABEL",
- "labels should not be indented\n" . $herecurr);
+ if (WARN("INDENTED_LABEL",
+ "labels should not be indented\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~
+ s/^(.)\s+/$1/;
+ }
}
# Return is not a function.
- if (defined($stat) && $stat =~ /^.\s*return(\s*)(\(.*);/s) {
+ if (defined($stat) && $stat =~ /^.\s*return(\s*)\(/s) {
my $spacing = $1;
- my $value = $2;
-
- # Flatten any parentheses
- $value =~ s/\(/ \(/g;
- $value =~ s/\)/\) /g;
- while ($value =~ s/\[[^\[\]]*\]/1/ ||
- $value !~ /(?:$Ident|-?$Constant)\s*
- $Compare\s*
- (?:$Ident|-?$Constant)/x &&
- $value =~ s/\([^\(\)]*\)/1/) {
- }
-#print "value<$value>\n";
- if ($value =~ /^\s*(?:$Ident|-?$Constant)\s*$/) {
+ if ($^V && $^V ge 5.10.0 &&
+ $stat =~ /^.\s*return\s*$balanced_parens\s*;\s*$/) {
ERROR("RETURN_PARENTHESES",
"return is not a function, parentheses are not required\n" . $herecurr);
"space required before the open parenthesis '('\n" . $herecurr);
}
}
+
+# if statements using unnecessary parentheses - ie: if ((foo == bar))
+ if ($^V && $^V ge 5.10.0 &&
+ $line =~ /\bif\s*((?:\(\s*){2,})/) {
+ my $openparens = $1;
+ my $count = $openparens =~ tr@\(@\(@;
+ my $msg = "";
+ if ($line =~ /\bif\s*(?:\(\s*){$count,$count}$LvalOrFunc\s*($Compare)\s*$LvalOrFunc(?:\s*\)){$count,$count}/) {
+ my $comp = $4; #Not $1 because of $LvalOrFunc
+ $msg = " - maybe == should be = ?" if ($comp eq "==");
+ WARN("UNNECESSARY_PARENTHESES",
+ "Unnecessary parentheses$msg\n" . $herecurr);
+ }
+ }
+
# Return of what appears to be an errno should normally be -'ve
if ($line =~ /^.\s*return\s*(E[A-Z]*)\s*;/) {
my $name = $1;
}
# Need a space before open parenthesis after if, while etc
- if ($line=~/\b(if|while|for|switch)\(/) {
- ERROR("SPACING", "space required before the open parenthesis '('\n" . $herecurr);
+ if ($line =~ /\b(if|while|for|switch)\(/) {
+ if (ERROR("SPACING",
+ "space required before the open parenthesis '('\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~
+ s/\b(if|while|for|switch)\(/$1 \(/;
+ }
}
# Check for illegal assignment in if conditional -- and check for trailing
}
}
if (!defined $suppress_whiletrailers{$linenr} &&
+ defined($stat) && defined($cond) &&
$line =~ /\b(?:if|while|for)\s*\(/ && $line !~ /^.\s*#/) {
my ($s, $c) = ($stat, $cond);
}
}
-#CamelCase
+#Specific variable tests
while ($line =~ m{($Constant|$Lval)}g) {
my $var = $1;
- if ($var !~ /$Constant/ &&
- $var =~ /[A-Z]\w*[a-z]|[a-z]\w*[A-Z]/ &&
- $var !~ /"^(?:Clear|Set|TestClear|TestSet|)Page[A-Z]/ &&
- !defined $camelcase{$var}) {
- $camelcase{$var} = 1;
- WARN("CAMELCASE",
- "Avoid CamelCase: <$var>\n" . $herecurr);
+
+#gcc binary extension
+ if ($var =~ /^$Binary$/) {
+ if (WARN("GCC_BINARY_CONSTANT",
+ "Avoid gcc v4.3+ binary constant extension: <$var>\n" . $herecurr) &&
+ $fix) {
+ my $hexval = sprintf("0x%x", oct($var));
+ $fixed[$linenr - 1] =~
+ s/\b$var\b/$hexval/;
+ }
+ }
+
+#CamelCase
+ if ($var !~ /^$Constant$/ &&
+ $var =~ /[A-Z][a-z]|[a-z][A-Z]/ &&
+#Ignore Page<foo> variants
+ $var !~ /^(?:Clear|Set|TestClear|TestSet|)Page[A-Z]/ &&
+#Ignore SI style variants like nS, mV and dB (ie: max_uV, regulator_min_uA_show)
+ $var !~ /^(?:[a-z_]*?)_?[a-z][A-Z](?:_[a-z_]+)?$/) {
+ while ($var =~ m{($Ident)}g) {
+ my $word = $1;
+ next if ($word !~ /[A-Z][a-z]|[a-z][A-Z]/);
+ if ($check) {
+ seed_camelcase_includes();
+ if (!$file && !$camelcase_file_seeded) {
+ seed_camelcase_file($realfile);
+ $camelcase_file_seeded = 1;
+ }
+ }
+ if (!defined $camelcase{$word}) {
+ $camelcase{$word} = 1;
+ CHK("CAMELCASE",
+ "Avoid CamelCase: <$word>\n" . $herecurr);
+ }
+ }
}
}
#no spaces allowed after \ in define
- if ($line=~/\#\s*define.*\\\s$/) {
- WARN("WHITESPACE_AFTER_LINE_CONTINUATION",
- "Whitepspace after \\ makes next lines useless\n" . $herecurr);
+ if ($line =~ /\#\s*define.*\\\s+$/) {
+ if (WARN("WHITESPACE_AFTER_LINE_CONTINUATION",
+ "Whitespace after \\ makes next lines useless\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~ s/\s+$//;
+ }
}
#warn if <asm/foo.h> is #included and <linux/foo.h> is available (uses RAW line)
if ($dstat ne '' &&
$dstat !~ /^(?:$Ident|-?$Constant),$/ && # 10, // foo(),
$dstat !~ /^(?:$Ident|-?$Constant);$/ && # foo();
- $dstat !~ /^[!~-]?(?:$Ident|$Constant)$/ && # 10 // foo() // !foo // ~foo // -foo
+ $dstat !~ /^[!~-]?(?:$Lval|$Constant)$/ && # 10 // foo() // !foo // ~foo // -foo // foo->bar // foo.bar->baz
$dstat !~ /^'X'$/ && # character constants
$dstat !~ /$exceptions/ &&
$dstat !~ /^\.$Ident\s*=/ && # .foo =
+ $dstat !~ /^(?:\#\s*$Ident|\#\s*$Constant)\s*$/ && # stringification #foo
$dstat !~ /^do\s*$Constant\s*while\s*$Constant;?$/ && # do {...} while (...); // do {...} while (...)
$dstat !~ /^for\s*$Constant$/ && # for (...)
$dstat !~ /^for\s*$Constant\s+(?:$Ident|-?$Constant)$/ && # for (...) bar()
$dstat !~ /^do\s*{/ && # do {...
- $dstat !~ /^\({/) # ({...
+ $dstat !~ /^\({/ && # ({...
+ $ctx !~ /^.\s*#\s*define\s+TRACE_(?:SYSTEM|INCLUDE_FILE|INCLUDE_PATH)\b/)
{
$ctx =~ s/\n*$//;
my $herectx = $here . "\n";
}
# check for unnecessary blank lines around braces
- if (($line =~ /^..*}\s*$/ && $prevline =~ /^.\s*$/)) {
+ if (($line =~ /^.\s*}\s*$/ && $prevrawline =~ /^.\s*$/)) {
CHK("BRACES",
"Blank lines aren't necessary before a close brace '}'\n" . $hereprev);
}
- if (($line =~ /^.\s*$/ && $prevline =~ /^..*{\s*$/)) {
+ if (($rawline =~ /^.\s*$/ && $prevline =~ /^..*{\s*$/)) {
CHK("BRACES",
"Blank lines aren't necessary after an open brace '{'\n" . $hereprev);
}
}
}
+# check for bad placement of section $InitAttribute (e.g.: __initdata)
+ if ($line =~ /(\b$InitAttribute\b)/) {
+ my $attr = $1;
+ if ($line =~ /^\+\s*static\s+(?:const\s+)?(?:$attr\s+)?($NonptrTypeWithAttr)\s+(?:$attr\s+)?($Ident(?:\[[^]]*\])?)\s*[=;]/) {
+ my $ptr = $1;
+ my $var = $2;
+ if ((($ptr =~ /\b(union|struct)\s+$attr\b/ &&
+ ERROR("MISPLACED_INIT",
+ "$attr should be placed after $var\n" . $herecurr)) ||
+ ($ptr !~ /\b(union|struct)\s+$attr\b/ &&
+ WARN("MISPLACED_INIT",
+ "$attr should be placed after $var\n" . $herecurr))) &&
+ $fix) {
+ $fixed[$linenr - 1] =~ s/(\bstatic\s+(?:const\s+)?)(?:$attr\s+)?($NonptrTypeWithAttr)\s+(?:$attr\s+)?($Ident(?:\[[^]]*\])?)\s*([=;])\s*/"$1" . trim(string_find_replace($2, "\\s*$attr\\s*", " ")) . " " . trim(string_find_replace($3, "\\s*$attr\\s*", "")) . " $attr" . ("$4" eq ";" ? ";" : " = ")/e;
+ }
+ }
+ }
+
+# check for $InitAttributeData (ie: __initdata) with const
+ if ($line =~ /\bconst\b/ && $line =~ /($InitAttributeData)/) {
+ my $attr = $1;
+ $attr =~ /($InitAttributePrefix)(.*)/;
+ my $attr_prefix = $1;
+ my $attr_type = $2;
+ if (ERROR("INIT_ATTRIBUTE",
+ "Use of const init definition must use ${attr_prefix}initconst\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~
+ s/$InitAttributeData/${attr_prefix}initconst/;
+ }
+ }
+
+# check for $InitAttributeConst (ie: __initconst) without const
+ if ($line !~ /\bconst\b/ && $line =~ /($InitAttributeConst)/) {
+ my $attr = $1;
+ if (ERROR("INIT_ATTRIBUTE",
+ "Use of $attr requires a separate use of const\n" . $herecurr) &&
+ $fix) {
+ my $lead = $fixed[$linenr - 1] =~
+ /(^\+\s*(?:static\s+))/;
+ $lead = rtrim($1);
+ $lead = "$lead " if ($lead !~ /^\+$/);
+ $lead = "${lead}const ";
+ $fixed[$linenr - 1] =~ s/(^\+\s*(?:static\s+))/$lead/;
+ }
+ }
+
# prefer usleep_range over udelay
if ($line =~ /\budelay\s*\(\s*(\d+)\s*\)/) {
# ignore udelay's < 10, however
}
}
+# check for comparisons of jiffies
+ if ($line =~ /\bjiffies\s*$Compare|$Compare\s*jiffies\b/) {
+ WARN("JIFFIES_COMPARISON",
+ "Comparing jiffies is almost always wrong; prefer time_after, time_before and friends\n" . $herecurr);
+ }
+
+# check for comparisons of get_jiffies_64()
+ if ($line =~ /\bget_jiffies_64\s*\(\s*\)\s*$Compare|$Compare\s*get_jiffies_64\s*\(\s*\)/) {
+ WARN("JIFFIES_COMPARISON",
+ "Comparing get_jiffies_64() is almost always wrong; prefer time_after64, time_before64 and friends\n" . $herecurr);
+ }
+
# warn about #ifdefs in C files
# if ($line =~ /^.\s*\#\s*if(|n)def/ && ($realfile =~ /\.c$/)) {
# print "#ifdef in C files should be avoided\n";
# warn about spacing in #ifdefs
if ($line =~ /^.\s*\#\s*(ifdef|ifndef|elif)\s\s+/) {
- ERROR("SPACING",
- "exactly one space required after that #$1\n" . $herecurr);
+ if (ERROR("SPACING",
+ "exactly one space required after that #$1\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~
+ s/^(.\s*\#\s*(ifdef|ifndef|elif))\s{2,}/$1 /;
+ }
+
}
# check for spinlock_t definitions without a comment.
# check for memory barriers without a comment.
if ($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)) {
- CHK("MEMORY_BARRIER",
- "memory barrier without comment\n" . $herecurr);
+ WARN("MEMORY_BARRIER",
+ "memory barrier without comment\n" . $herecurr);
}
}
# check of hardware specific defines
}
# Check for __inline__ and __inline, prefer inline
- if ($line =~ /\b(__inline__|__inline)\b/) {
- WARN("INLINE",
- "plain inline is preferred over $1\n" . $herecurr);
+ if ($realfile !~ m@\binclude/uapi/@ &&
+ $line =~ /\b(__inline__|__inline)\b/) {
+ if (WARN("INLINE",
+ "plain inline is preferred over $1\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~ s/\b(__inline__|__inline)\b/inline/;
+
+ }
}
# Check for __attribute__ packed, prefer __packed
- if ($line =~ /\b__attribute__\s*\(\s*\(.*\bpacked\b/) {
+ if ($realfile !~ m@\binclude/uapi/@ &&
+ $line =~ /\b__attribute__\s*\(\s*\(.*\bpacked\b/) {
WARN("PREFER_PACKED",
"__packed is preferred over __attribute__((packed))\n" . $herecurr);
}
}
# Check for __attribute__ aligned, prefer __aligned
- if ($line =~ /\b__attribute__\s*\(\s*\(.*aligned/) {
+ if ($realfile !~ m@\binclude/uapi/@ &&
+ $line =~ /\b__attribute__\s*\(\s*\(.*aligned/) {
WARN("PREFER_ALIGNED",
"__aligned(size) is preferred over __attribute__((aligned(size)))\n" . $herecurr);
}
# Check for __attribute__ format(printf, prefer __printf
- if ($line =~ /\b__attribute__\s*\(\s*\(\s*format\s*\(\s*printf/) {
- WARN("PREFER_PRINTF",
- "__printf(string-index, first-to-check) is preferred over __attribute__((format(printf, string-index, first-to-check)))\n" . $herecurr);
+ if ($realfile !~ m@\binclude/uapi/@ &&
+ $line =~ /\b__attribute__\s*\(\s*\(\s*format\s*\(\s*printf/) {
+ if (WARN("PREFER_PRINTF",
+ "__printf(string-index, first-to-check) is preferred over __attribute__((format(printf, string-index, first-to-check)))\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~ s/\b__attribute__\s*\(\s*\(\s*format\s*\(\s*printf\s*,\s*(.*)\)\s*\)\s*\)/"__printf(" . trim($1) . ")"/ex;
+
+ }
}
# Check for __attribute__ format(scanf, prefer __scanf
- if ($line =~ /\b__attribute__\s*\(\s*\(\s*format\s*\(\s*scanf\b/) {
- WARN("PREFER_SCANF",
- "__scanf(string-index, first-to-check) is preferred over __attribute__((format(scanf, string-index, first-to-check)))\n" . $herecurr);
+ if ($realfile !~ m@\binclude/uapi/@ &&
+ $line =~ /\b__attribute__\s*\(\s*\(\s*format\s*\(\s*scanf\b/) {
+ if (WARN("PREFER_SCANF",
+ "__scanf(string-index, first-to-check) is preferred over __attribute__((format(scanf, string-index, first-to-check)))\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~ s/\b__attribute__\s*\(\s*\(\s*format\s*\(\s*scanf\s*,\s*(.*)\)\s*\)\s*\)/"__scanf(" . trim($1) . ")"/ex;
+ }
}
# check for sizeof(&)
# check for sizeof without parenthesis
if ($line =~ /\bsizeof\s+((?:\*\s*|)$Lval|$Type(?:\s+$Lval|))/) {
- WARN("SIZEOF_PARENTHESIS",
- "sizeof $1 should be sizeof($1)\n" . $herecurr);
+ if (WARN("SIZEOF_PARENTHESIS",
+ "sizeof $1 should be sizeof($1)\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~ s/\bsizeof\s+((?:\*\s*|)$Lval|$Type(?:\s+$Lval|))/"sizeof(" . trim($1) . ")"/ex;
+ }
}
# check for line continuations in quoted strings with odd counts of "
"struct spinlock should be spinlock_t\n" . $herecurr);
}
+# check for seq_printf uses that could be seq_puts
+ if ($sline =~ /\bseq_printf\s*\(.*"\s*\)\s*;\s*$/) {
+ my $fmt = get_quoted_string($line, $rawline);
+ if ($fmt ne "" && $fmt !~ /[^\\]\%/) {
+ if (WARN("PREFER_SEQ_PUTS",
+ "Prefer seq_puts to seq_printf\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~ s/\bseq_printf\b/seq_puts/;
+ }
+ }
+ }
+
# Check for misused memsets
if ($^V && $^V ge 5.10.0 &&
defined $stat &&
}
}
+# Check for memcpy(foo, bar, ETH_ALEN) that could be ether_addr_copy(foo, bar)
+ if ($^V && $^V ge 5.10.0 &&
+ $line =~ /^\+(?:.*?)\bmemcpy\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\,\s*ETH_ALEN\s*\)/s) {
+ if (WARN("PREFER_ETHER_ADDR_COPY",
+ "Prefer ether_addr_copy() over memcpy() if the Ethernet addresses are __aligned(2)\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~ s/\bmemcpy\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\,\s*ETH_ALEN\s*\)/ether_addr_copy($2, $7)/;
+ }
+ }
+
# typecasts on min/max could be min_t/max_t
if ($^V && $^V ge 5.10.0 &&
defined $stat &&
}
}
+# check for naked sscanf
+ if ($^V && $^V ge 5.10.0 &&
+ defined $stat &&
+ $stat =~ /\bsscanf\b/ &&
+ ($stat !~ /$Ident\s*=\s*sscanf\s*$balanced_parens/ &&
+ $stat !~ /\bsscanf\s*$balanced_parens\s*(?:$Compare)/ &&
+ $stat !~ /(?:$Compare)\s*\bsscanf\s*$balanced_parens/)) {
+ my $lc = $stat =~ tr@\n@@;
+ $lc = $lc + $linenr;
+ my $stat_real = raw_line($linenr, 0);
+ for (my $count = $linenr + 1; $count <= $lc; $count++) {
+ $stat_real = $stat_real . "\n" . raw_line($count, 0);
+ }
+ WARN("NAKED_SSCANF",
+ "unchecked sscanf return value\n" . "$here\n$stat_real\n");
+ }
+
+# check for new externs in .h files.
+ if ($realfile =~ /\.h$/ &&
+ $line =~ /^\+\s*(extern\s+)$Type\s*$Ident\s*\(/s) {
+ if (CHK("AVOID_EXTERNS",
+ "extern prototypes should be avoided in .h files\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~ s/(.*)\bextern\b\s*(.*)/$1$2/;
+ }
+ }
+
# check for new externs in .c files.
if ($realfile =~ /\.c$/ && defined $stat &&
$stat =~ /^.\s*(?:extern\s+)?$Type\s+($Ident)(\s*)\(/s)
"unnecessary cast may hide bugs, see http://c-faq.com/malloc/mallocnocast.html\n" . $herecurr);
}
+# alloc style
+# p = alloc(sizeof(struct foo), ...) should be p = alloc(sizeof(*p), ...)
+ if ($^V && $^V ge 5.10.0 &&
+ $line =~ /\b($Lval)\s*\=\s*(?:$balanced_parens)?\s*([kv][mz]alloc(?:_node)?)\s*\(\s*(sizeof\s*\(\s*struct\s+$Lval\s*\))/) {
+ CHK("ALLOC_SIZEOF_STRUCT",
+ "Prefer $3(sizeof(*$1)...) over $3($4...)\n" . $herecurr);
+ }
+
+# check for krealloc arg reuse
+ if ($^V && $^V ge 5.10.0 &&
+ $line =~ /\b($Lval)\s*\=\s*(?:$balanced_parens)?\s*krealloc\s*\(\s*\1\s*,/) {
+ WARN("KREALLOC_ARG_REUSE",
+ "Reusing the krealloc arg is almost always a bug\n" . $herecurr);
+ }
+
# check for alloc argument mismatch
if ($line =~ /\b(kcalloc|kmalloc_array)\s*\(\s*sizeof\b/) {
WARN("ALLOC_ARRAY_ARGS",
"$1 uses number as first arg, sizeof is generally wrong\n" . $herecurr);
}
+# check for GFP_NOWAIT use
+ if ($line =~ /\b__GFP_NOFAIL\b/) {
+ WARN("__GFP_NOFAIL",
+ "Use of __GFP_NOFAIL is deprecated, no new users should be added\n" . $herecurr);
+ }
+
# check for multiple semicolons
if ($line =~ /;\s*;\s*$/) {
- WARN("ONE_SEMICOLON",
- "Statements terminations use 1 semicolon\n" . $herecurr);
+ if (WARN("ONE_SEMICOLON",
+ "Statements terminations use 1 semicolon\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~ s/(\s*;\s*){2,}$/;/g;
+ }
+ }
+
+# check for case / default statements not preceeded by break/fallthrough/switch
+ if ($line =~ /^.\s*(?:case\s+(?:$Ident|$Constant)\s*|default):/) {
+ my $has_break = 0;
+ my $has_statement = 0;
+ my $count = 0;
+ my $prevline = $linenr;
+ while ($prevline > 1 && $count < 3 && !$has_break) {
+ $prevline--;
+ my $rline = $rawlines[$prevline - 1];
+ my $fline = $lines[$prevline - 1];
+ last if ($fline =~ /^\@\@/);
+ next if ($fline =~ /^\-/);
+ next if ($fline =~ /^.(?:\s*(?:case\s+(?:$Ident|$Constant)[\s$;]*|default):[\s$;]*)*$/);
+ $has_break = 1 if ($rline =~ /fall[\s_-]*(through|thru)/i);
+ next if ($fline =~ /^.[\s$;]*$/);
+ $has_statement = 1;
+ $count++;
+ $has_break = 1 if ($fline =~ /\bswitch\b|\b(?:break\s*;[\s$;]*$|return\b|goto\b|continue\b)/);
+ }
+ if (!$has_break && $has_statement) {
+ WARN("MISSING_BREAK",
+ "Possible switch case/default not preceeded by break or fallthrough comment\n" . $herecurr);
+ }
}
# check for switch/default statements without a break;
}
# check for gcc specific __FUNCTION__
- if ($line =~ /__FUNCTION__/) {
- WARN("USE_FUNC",
- "__func__ should be used instead of gcc specific __FUNCTION__\n" . $herecurr);
+ if ($line =~ /\b__FUNCTION__\b/) {
+ if (WARN("USE_FUNC",
+ "__func__ should be used instead of gcc specific __FUNCTION__\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~ s/\b__FUNCTION__\b/__func__/g;
+ }
}
# check for use of yield()
"Using yield() is generally wrong. See yield() kernel-doc (sched/core.c)\n" . $herecurr);
}
+# check for comparisons against true and false
+ if ($line =~ /\+\s*(.*?)\b(true|false|$Lval)\s*(==|\!=)\s*(true|false|$Lval)\b(.*)$/i) {
+ my $lead = $1;
+ my $arg = $2;
+ my $test = $3;
+ my $otype = $4;
+ my $trail = $5;
+ my $op = "!";
+
+ ($arg, $otype) = ($otype, $arg) if ($arg =~ /^(?:true|false)$/i);
+
+ my $type = lc($otype);
+ if ($type =~ /^(?:true|false)$/) {
+ if (("$test" eq "==" && "$type" eq "true") ||
+ ("$test" eq "!=" && "$type" eq "false")) {
+ $op = "";
+ }
+
+ CHK("BOOL_COMPARISON",
+ "Using comparison to $otype is error prone\n" . $herecurr);
+
+## maybe suggesting a correct construct would better
+## "Using comparison to $otype is error prone. Perhaps use '${lead}${op}${arg}${trail}'\n" . $herecurr);
+
+ }
+ }
+
# check for semaphores initialized locked
if ($line =~ /^.\s*sema_init.+,\W?0\W?\)/) {
WARN("CONSIDER_COMPLETION",
"usage of NR_CPUS is often wrong - consider using cpu_possible(), num_possible_cpus(), for_each_possible_cpu(), etc\n" . $herecurr);
}
+# Use of __ARCH_HAS_<FOO> or ARCH_HAVE_<BAR> is wrong.
+ if ($line =~ /\+\s*#\s*define\s+((?:__)?ARCH_(?:HAS|HAVE)\w*)\b/) {
+ ERROR("DEFINE_ARCH_HAS",
+ "#define of '$1' is wrong - use Kconfig variables or standard guards instead\n" . $herecurr);
+ }
+
# check for %L{u,d,i} in strings
my $string;
while ($line =~ /(?:^|")([X\t]*)(?:"|$)/g) {
}
}
- if ($quiet == 0 && keys %ignore_type) {
- print "NOTE: Ignored message types:";
- foreach my $ignore (sort keys %ignore_type) {
- print " $ignore";
- }
- print "\n\n";
+ hash_show_words(\%use_type, "Used");
+ hash_show_words(\%ignore_type, "Ignored");
+
+ if ($clean == 0 && $fix && "@rawlines" ne "@fixed") {
+ my $newfile = $filename;
+ $newfile .= ".EXPERIMENTAL-checkpatch-fixes" if (!$fix_inplace);
+ my $linecount = 0;
+ my $f;
+
+ open($f, '>', $newfile)
+ or die "$P: Can't open $newfile for write\n";
+ foreach my $fixed_line (@fixed) {
+ $linecount++;
+ if ($file) {
+ if ($linecount > 3) {
+ $fixed_line =~ s/^\+//;
+ print $f $fixed_line. "\n";
+ }
+ } else {
+ print $f $fixed_line . "\n";
+ }
+ }
+ close($f);
+
+ if (!$quiet) {
+ print << "EOM";
+Wrote EXPERIMENTAL --fix correction(s) to '$newfile'
+
+Do _NOT_ trust the results written to this file.
+Do _NOT_ submit these changes without inspecting them for correctness.
+
+This EXPERIMENTAL file is simply a convenience to help rewrite patches.
+No warranties, expressed or implied...
+
+EOM
+ }
}
if ($clean == 1 && $quiet == 0) {
$vname has style problems, please review.
If any of these errors are false positives, please report
-them to the maintainer, see boards.cfg.
+them to the maintainer, see CHECKPATCH in MAINTAINERS.
EOM
}
projects / project / bcm63xx / u-boot.git / commitdiff