From: Peng Tao Date: Wed, 25 Apr 2012 23:56:06 +0000 (+0800) Subject: LU-1347 build: use kernel checkpatch.pl and check for tabs X-Git-Tag: 2.2.52~16 X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=commitdiff_plain;h=0b554ff27b7cd282694a9d33728f2e48a10372f3 LU-1347 build: use kernel checkpatch.pl and check for tabs We need to enforce kernel coding style, and check for tabs instead of spaces by default. Signed-off-by: Peng Tao Change-Id: I26fc5a5c6d2e629eb284ac604977d09ebe41dc53 Reviewed-on: http://review.whamcloud.com/2610 Tested-by: Hudson Tested-by: Maloo Reviewed-by: Andreas Dilger --- diff --git a/build/checkpatch.pl b/build/checkpatch.pl index f6e647d..033e977 100755 --- a/build/checkpatch.pl +++ b/build/checkpatch.pl @@ -10,12 +10,11 @@ use strict; my $P = $0; $P =~ s@.*/@@g; -my $V = '0.31'; +my $V = '0.32'; use Getopt::Long qw(:config no_auto_abbrev); my $quiet = 0; -my $tabs = 0; my $tree = 0; my $chk_signoff = 0; my $chk_patch = 1; @@ -27,9 +26,13 @@ my $check = 0; my $summary = 1; my $mailback = 0; my $summary_file = 0; +my $show_types = 0; my $root; my %debug; +my %ignore_type = (); +my @ignore = (); my $help = 0; +my $configuration_file = ".checkpatch.conf"; sub help { my ($exitcode) = @_; @@ -40,7 +43,6 @@ Version: $V Options: -q, --quiet quiet - --tabs tabs should be used for indent instead of spaces --no-tree run without a kernel tree --no-signoff do not check for 'Signed-off-by' line --patch treat FILE as patchfile (default) @@ -48,6 +50,8 @@ Options: --terse one line per report -f, --file treat FILE as regular source file --subjective, --strict enable more subjective tests + --ignore TYPE(,TYPE2...) ignore various comma separated message types + --show-types show the message "types" in the output --root=PATH PATH to the kernel tree root --no-summary suppress the per-file summary --mailback only produce a report in case of warnings/errors @@ -65,9 +69,34 @@ EOM exit($exitcode); } +my $conf = which_conf($configuration_file); +if (-f $conf) { + my @conf_args; + open(my $conffile, '<', "$conf") + or warn "$P: Can't find a readable $configuration_file file $!\n"; + + while (<$conffile>) { + my $line = $_; + + $line =~ s/\s*\n?$//g; + $line =~ s/^\s*//g; + $line =~ s/\s+/ /g; + + next if ($line =~ m/^\s*#/); + next if ($line =~ m/^\s*$/); + + my @words = split(" ", $line); + foreach my $word (@words) { + last if ($word =~ m/^#/); + push (@conf_args, $word); + } + } + close($conffile); + unshift(@ARGV, @conf_args) if @conf_args; +} + GetOptions( 'q|quiet+' => \$quiet, - 'tabs!' => \$tabs, 'tree!' => \$tree, 'signoff!' => \$chk_signoff, 'patch!' => \$chk_patch, @@ -76,6 +105,8 @@ GetOptions( 'f|file!' => \$file, 'subjective!' => \$check, 'strict!' => \$check, + 'ignore=s' => \@ignore, + 'show-types!' => \$show_types, 'root=s' => \$root, 'summary!' => \$summary, 'mailback!' => \$mailback, @@ -96,6 +127,19 @@ if ($#ARGV < 0) { exit(1); } +@ignore = split(/,/, join(',',@ignore)); +foreach my $word (@ignore) { + $word =~ s/\s*\n?$//g; + $word =~ s/^\s*//g; + $word =~ s/\s+/ /g; + $word =~ tr/[a-z]/[A-Z]/; + + next if ($word =~ m/^\s*#/); + next if ($word =~ m/^\s*$/); + + $ignore_type{$word}++; +} + my $dbg_values = 0; my $dbg_possible = 0; my $dbg_type = 0; @@ -148,7 +192,8 @@ our $Sparse = qr{ __must_check| __init_refok| __kprobes| - __ref + __ref| + __rcu }x; # Notes to $Attribute: @@ -182,7 +227,7 @@ our $Inline = qr{inline|__always_inline|noinline}; our $Member = qr{->$Ident|\.$Ident|\[[^]]*\]}; our $Lval = qr{$Ident(?:$Member)*}; -our $Constant = qr{(?:[0-9]+|0x[0-9a-fA-F]+)[UL]*}; +our $Constant = qr{(?i:(?:[0-9]+|0x[0-9a-f]+)[ul]*)}; our $Assignment = qr{(?:\*\=|/=|%=|\+=|-=|<<=|>>=|&=|\^=|\|=|=)}; our $Compare = qr{<=|>=|==|!=|<|>}; our $Operators = qr{ @@ -195,9 +240,8 @@ our $NonptrType; our $Type; our $Declare; -our $UTF8 = qr { - [\x09\x0A\x0D\x20-\x7E] # ASCII - | [\xC2-\xDF][\x80-\xBF] # non-overlong 2-byte +our $NON_ASCII_UTF8 = qr{ + [\xC2-\xDF][\x80-\xBF] # non-overlong 2-byte | \xE0[\xA0-\xBF][\x80-\xBF] # excluding overlongs | [\xE1-\xEC\xEE\xEF][\x80-\xBF]{2} # straight 3-byte | \xED[\x80-\x9F][\x80-\xBF] # excluding surrogates @@ -206,19 +250,34 @@ our $UTF8 = qr { | \xF4[\x80-\x8F][\x80-\xBF]{2} # plane 16 }x; +our $UTF8 = qr{ + [\x09\x0A\x0D\x20-\x7E] # ASCII + | $NON_ASCII_UTF8 +}x; + our $typeTypedefs = qr{(?x: (?:__)?(?:u|s|be|le)(?:8|16|32|64)| atomic_t )}; our $logFunctions = qr{(?x: - printk| - [a-z]+_(emerg|alert|crit|err|warning|warn|notice|info|debug|dbg|vdbg|devel|cont|WARN)| - WARN| + printk(?:_ratelimited|_once|)| + [a-z0-9]+_(?:printk|emerg|alert|crit|err|warning|warn|notice|info|debug|dbg|vdbg|devel|cont|WARN)(?:_ratelimited|_once|)| + WARN(?:_RATELIMIT|_ONCE|)| panic| MODULE_[A-Z_]+ )}; +our $signature_tags = qr{(?xi: + Signed-off-by:| + Acked-by:| + Tested-by:| + Reviewed-by:| + Reported-by:| + To:| + Cc: +)}; + our @typeList = ( qr{void}, qr{(?:unsigned\s+)?char}, @@ -256,7 +315,7 @@ sub build_types { $NonptrType = qr{ (?:$Modifier\s+|const\s+)* (?: - (?:typeof|__typeof__)\s*\(\s*\**\s*$Ident\s*\)| + (?:typeof|__typeof__)\s*\([^\)]*\)| (?:$typeTypedefs\b)| (?:${all}\b) ) @@ -271,6 +330,21 @@ sub build_types { } build_types(); +our $match_balanced_parentheses = qr/(\((?:[^\(\)]+|(-1))*\))/; + +our $Typecast = qr{\s*(\(\s*$NonptrType\s*\)){0,1}\s*}; +our $LvalOrFunc = qr{($Lval)\s*($match_balanced_parentheses{0,1})\s*}; +our $FuncArg = qr{$Typecast{0,1}($LvalOrFunc|$Constant)}; + +sub deparenthesize { + my ($string) = @_; + return "" if (!defined($string)); + $string =~ s@^\s*\(\s*@@g; + $string =~ s@\s*\)\s*$@@g; + $string =~ s@\s+@ @g; + return $string; +} + $chk_signoff = 0 if ($file); my @dep_includes = (); @@ -342,6 +416,88 @@ sub top_of_kernel_tree { } } return 1; + } + +sub parse_email { + my ($formatted_email) = @_; + + my $name = ""; + my $address = ""; + my $comment = ""; + + if ($formatted_email =~ /^(.*)<(\S+\@\S+)>(.*)$/) { + $name = $1; + $address = $2; + $comment = $3 if defined $3; + } elsif ($formatted_email =~ /^\s*<(\S+\@\S+)>(.*)$/) { + $address = $1; + $comment = $2 if defined $2; + } elsif ($formatted_email =~ /(\S+\@\S+)(.*)$/) { + $address = $1; + $comment = $2 if defined $2; + $formatted_email =~ s/$address.*$//; + $name = $formatted_email; + $name =~ s/^\s+|\s+$//g; + $name =~ s/^\"|\"$//g; + # If there's a name left after stripping spaces and + # leading quotes, and the address doesn't have both + # leading and trailing angle brackets, the address + # is invalid. ie: + # "joe smith joe@smith.com" bad + # "joe smith ]+>$/) { + $name = ""; + $address = ""; + $comment = ""; + } + } + + $name =~ s/^\s+|\s+$//g; + $name =~ s/^\"|\"$//g; + $address =~ s/^\s+|\s+$//g; + $address =~ s/^\<|\>$//g; + + if ($name =~ /[^\w \-]/i) { ##has "must quote" chars + $name =~ s/(?"; + } + + return $formatted_email; +} + +sub which_conf { + my ($conf) = @_; + + foreach my $path (split(/:/, ".:$ENV{HOME}:.scripts")) { + if (-e "$path/$conf") { + return "$path/$conf"; + } + } + + return ""; } sub expand_tabs { @@ -521,6 +677,10 @@ sub ctx_statement_block { if ($off >= $len) { last; } + if ($level == 0 && substr($blk, $off) =~ /^.\s*#\s*define/) { + $level++; + $type = '#'; + } } $p = $c; $c = substr($blk, $off, 1); @@ -583,6 +743,13 @@ sub ctx_statement_block { last; } } + # Preprocessor commands end at the newline unless escaped. + if ($type eq '#' && $c eq "\n" && $p ne "\\") { + $level--; + $type = ''; + $off++; + last; + } $off++; } # We are truly at the end, so shuffle to the next line. @@ -865,7 +1032,7 @@ sub annotate_values { } elsif ($cur =~ /^(\(\s*$Type\s*)\)/ && $av_pending eq '_') { print "CAST($1)\n" if ($dbg_values > 1); push(@av_paren_type, $type); - $type = 'C'; + $type = 'c'; } elsif ($cur =~ /^($Type)\s*(?:$Ident|,|\)|\(|\s*$)/) { print "DECLARE($1)\n" if ($dbg_values > 1); @@ -1057,7 +1224,9 @@ sub possible { case| else| asm|__asm__| - do + do| + \#| + \#\#| )(?:\s|$)| ^(?:typedef|struct|enum)\b )}x; @@ -1089,12 +1258,21 @@ sub possible { my $prefix = ''; +sub show_type { + return !defined $ignore_type{$_[0]}; +} + sub report { - if (defined $tst_only && $_[0] !~ /\Q$tst_only\E/) { + if (!show_type($_[1]) || + (defined $tst_only && $_[2] !~ /\Q$tst_only\E/)) { return 0; } - my $line = $prefix . $_[0]; - + my $line; + if ($show_types) { + $line = "$prefix$_[0]:$_[1]: $_[2]\n"; + } else { + $line = "$prefix$_[0]: $_[2]\n"; + } $line = (split('\n', $line))[0] . "\n" if ($terse); push(our @report, $line); @@ -1104,18 +1282,22 @@ sub report { sub report_dump { our @report; } + sub ERROR { - if (report("error: $_[0]\n")) { + if (report("ERROR", $_[0], $_[1])) { + our $clean = 0; our $cnt_error++; } } sub WARN { - if (report("warning: $_[0]\n")) { + if (report("WARNING", $_[0], $_[1])) { + our $clean = 0; our $cnt_warn++; } } sub CHK { - if ($check && report("CHECK: $_[0]\n")) { + if ($check && report("CHECK", $_[0], $_[1])) { + our $clean = 0; our $cnt_chk++; } } @@ -1143,7 +1325,8 @@ sub check_absolute_file { ##print "prefix<$prefix>\n"; if ($prefix ne ".../") { - WARN("use relative pathname instead of absolute in changelog text\n" . $herecurr); + WARN("USE_RELATIVE_PATH", + "use relative pathname instead of absolute in changelog text\n" . $herecurr); } } @@ -1161,9 +1344,13 @@ sub process { my $previndent=0; my $stashindent=0; + our $clean = 1; my $signoff = 0; my $is_patch = 0; + my $in_header_lines = 1; + my $in_commit_log = 0; #Scanning lines before patch + our @report = (); our $cnt_lines = 0; our $cnt_error = 0; @@ -1186,6 +1373,7 @@ sub process { my %suppress_ifbraces; my %suppress_whiletrailers; my %suppress_export; + my $suppress_statement = 0; # Pre-scan the patch sanitizing the lines. # Pre-scan the patch looking for any __setup documentation. @@ -1254,20 +1442,6 @@ sub process { # simplify matching -- only bother with positive lines. $line = sanitise_line($rawline); } - - # extract the filename as it passes - if ($line =~ /^diff --git.*?(\S+)$/) { - $realfile = $1; - $realfile =~ s@^([^/]*)/@@; - - } elsif ($line =~ /^\+\+\+\s+(\S+)/) { - $realfile = $1; - $realfile =~ s@^([^/]*)/@@; - } - - next if ($realfile =~ /\.patch/); - next if ($realfile =~ /wire(test|check)\.c/); - push(@lines, $line); if ($realcnt > 1) { @@ -1309,6 +1483,7 @@ sub process { %suppress_ifbraces = (); %suppress_whiletrailers = (); %suppress_export = (); + $suppress_statement = 0; next; # track the line number as we move through the hunk, note that @@ -1345,24 +1520,27 @@ sub process { if ($line =~ /^diff --git.*?(\S+)$/) { $realfile = $1; $realfile =~ s@^([^/]*)/@@; - + $in_commit_log = 0; } elsif ($line =~ /^\+\+\+\s+(\S+)/) { $realfile = $1; $realfile =~ s@^([^/]*)/@@; + $in_commit_log = 0; $p1_prefix = $1; if (!$file && $tree && $p1_prefix ne '' && -e "$root/$p1_prefix") { - WARN("patch prefix '$p1_prefix' exists, appears to be a -p0 patch\n"); + WARN("PATCH_PREFIX", + "patch prefix '$p1_prefix' exists, appears to be a -p0 patch\n"); } if ($realfile =~ m@^include/asm/@) { - ERROR("do not modify files in include/asm, change architecture specific files in include/asm-\n" . "$here$rawline\n"); + ERROR("MODIFIED_INCLUDE_ASM", + "do not modify files in include/asm, change architecture specific files in include/asm-\n" . "$here$rawline\n"); } next; } - $here .= "FILE: $realfile:$realline:" if ($realcnt != 1); + $here .= "FILE: $realfile:$realline:" if ($realcnt != 0); my $hereline = "$here\n$rawline\n"; my $herecurr = "$here\n$rawline\n"; @@ -1374,27 +1552,63 @@ sub process { if ($line =~ /^new (file )?mode.*[7531]\d{0,2}$/) { my $permhere = $here . "FILE: $realfile\n"; if ($realfile =~ /(Makefile|Kconfig|\.c|\.h|\.S|\.tmpl)$/) { - ERROR("do not set execute permissions for source files\n" . $permhere); + ERROR("EXECUTE_PERMISSIONS", + "do not set execute permissions for source files\n" . $permhere); } } -#check the patch for a signoff: +# Check the patch for a signoff: if ($line =~ /^\s*signed-off-by:/i) { - # This is a signoff, if ugly, so do not double report. $signoff++; - if (!($line =~ /^\s*Signed-off-by:/)) { - WARN("Signed-off-by: is the preferred form\n" . - $herecurr); + $in_commit_log = 0; + } + +# Check signature styles + if (!$in_header_lines && + $line =~ /^(\s*)($signature_tags)(\s*)(.*)/) { + my $space_before = $1; + my $sign_off = $2; + my $space_after = $3; + my $email = $4; + my $ucfirst_sign_off = ucfirst(lc($sign_off)); + + if (defined $space_before && $space_before ne "") { + WARN("BAD_SIGN_OFF", + "Do not use whitespace before $ucfirst_sign_off\n" . $herecurr); } - if ($line =~ /^\s*signed-off-by:\S/i) { - WARN("space required after Signed-off-by:\n" . - $herecurr); + 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 (!defined $space_after || $space_after ne " ") { + WARN("BAD_SIGN_OFF", + "Use a single space after $ucfirst_sign_off\n" . $herecurr); + } + + my ($email_name, $email_address, $comment) = parse_email($email); + my $suggested_email = format_email(($email_name, $email_address)); + if ($suggested_email eq "") { + ERROR("BAD_SIGN_OFF", + "Unrecognized email address: '$email'\n" . $herecurr); + } else { + my $dequoted = $suggested_email; + $dequoted =~ s/^"//; + $dequoted =~ s/" $comment" ne $email && + "$suggested_email$comment" ne $email) { + WARN("BAD_SIGN_OFF", + "email address '$email' might be better as '$suggested_email$comment'\n" . $herecurr); + } } } # Check for wrappage within a valid hunk of the file if ($realcnt != 0 && $line !~ m{^(?:\+|-| |\\ No newline|$)}) { - ERROR("patch seems to be corrupt (line wrapped?)\n" . + ERROR("CORRUPTED_PATCH", + "patch seems to be corrupt (line wrapped?)\n" . $herecurr) if (!$emitted_corrupt++); } @@ -1421,7 +1635,23 @@ sub process { my $ptr = substr($blank, 0, length($utf8_prefix)) . "^"; my $hereptr = "$hereline$ptr\n"; - ERROR("Invalid UTF-8, patch and commit message should be encoded in UTF-8\n" . $hereptr); + CHK("INVALID_UTF8", + "Invalid UTF-8, patch and commit message should be encoded in UTF-8\n" . $hereptr); + } + +# Check if it's the start of a commit log +# (not a header line and we haven't seen the patch filename) + if ($in_header_lines && $realfile =~ /^$/ && + $rawline !~ /^(commit\b|from\b|[\w-]+:).+$/i) { + $in_header_lines = 0; + $in_commit_log = 1; + } + +# Still not yet in a patch, check for any UTF-8 + if ($in_commit_log && $realfile =~ /^$/ && + $rawline =~ /$NON_ASCII_UTF8/) { + CHK("UTF8_BEFORE_PATCH", + "8-bit UTF-8 used in possible commit log\n" . $herecurr); } # ignore non-hunk lines and lines being removed @@ -1430,11 +1660,13 @@ sub process { #trailing whitespace if ($line =~ /^\+.*\015/) { my $herevet = "$here\n" . cat_vet($rawline) . "\n"; - ERROR("DOS line endings\n" . $herevet); + ERROR("DOS_LINE_ENDINGS", + "DOS line endings\n" . $herevet); } elsif ($rawline =~ /^\+.*\S\s+$/ || $rawline =~ /^\+\s+$/) { my $herevet = "$here\n" . cat_vet($rawline) . "\n"; - ERROR("trailing whitespace\n" . $herevet); + ERROR("TRAILING_WHITESPACE", + "trailing whitespace\n" . $herevet); $rpt_cleaners = 1; } @@ -1442,19 +1674,26 @@ sub process { # Only applies when adding the entry originally, after that we do not have # sufficient context to determine whether it is indeed long enough. if ($realfile =~ /Kconfig/ && - $line =~ /\+\s*(?:---)?help(?:---)?$/) { + $line =~ /.\s*config\s+/) { my $length = 0; my $cnt = $realcnt; my $ln = $linenr + 1; my $f; + my $is_start = 0; my $is_end = 0; - while ($cnt > 0 && defined $lines[$ln - 1]) { + for (; $cnt > 0 && defined $lines[$ln - 1]; $ln++) { $f = $lines[$ln - 1]; $cnt-- if ($lines[$ln - 1] !~ /^-/); $is_end = $lines[$ln - 1] =~ /^\+/; - $ln++; next if ($f =~ /^-/); + + if ($lines[$ln - 1] =~ /.\s*(?:bool|tristate)\s*\"/) { + $is_start = 1; + } elsif ($lines[$ln - 1] =~ /.\s*(?:---)?help(?:---)?$/) { + $length = -1; + } + $f =~ s/^.//; $f =~ s/#.*//; $f =~ s/^\s+//; @@ -1465,8 +1704,23 @@ sub process { } $length++; } - WARN("please write a paragraph that describes the config symbol fully\n" . $herecurr) if ($is_end && $length < 4); - #print "is_end<$is_end> length<$length>\n"; + WARN("CONFIG_DESCRIPTION", + "please write a paragraph that describes the config symbol fully\n" . $herecurr) if ($is_start && $is_end && $length < 4); + #print "is_start<$is_start> is_end<$is_end> length<$length>\n"; + } + + if (($realfile =~ /Makefile.*/ || $realfile =~ /Kbuild.*/) && + ($line =~ /\+(EXTRA_[A-Z]+FLAGS).*/)) { + my $flag = $1; + my $replacement = { + 'EXTRA_AFLAGS' => 'asflags-y', + 'EXTRA_CFLAGS' => 'ccflags-y', + 'EXTRA_CPPFLAGS' => 'cppflags-y', + 'EXTRA_LDFLAGS' => 'ldflags-y', + }; + + WARN("DEPRECATED_VARIABLE", + "Use of $flag is deprecated, please use \`$replacement->{$flag} instead.\n" . $herecurr) if ($replacement->{$flag}); } # check we are in a valid source file if not then ignore this hunk @@ -1479,28 +1733,33 @@ sub process { $line =~ /^\+\s*"[^"]*"\s*(?:\s*|,|\)\s*;)\s*$/) && $length > 80) { - WARN("line over 80 characters\n" . $herecurr); + WARN("LONG_LINE", + "line over 80 characters\n" . $herecurr); } # check for spaces before a quoted newline if ($rawline =~ /^.*\".*\s\\n/) { - WARN("unnecessary whitespace before a quoted newline\n" . $herecurr); + WARN("QUOTED_WHITESPACE_BEFORE_NEWLINE", + "unnecessary whitespace before a quoted newline\n" . $herecurr); } # check for adding lines without a newline. if ($line =~ /^\+/ && defined $lines[$linenr] && $lines[$linenr] =~ /^\\ No newline at end of file/) { - WARN("adding a line without newline at end of file\n" . $herecurr); + WARN("MISSING_EOF_NEWLINE", + "adding a line without newline at end of file\n" . $herecurr); } # Blackfin: use hi/lo macros if ($realfile =~ m@arch/blackfin/.*\.S$@) { if ($line =~ /\.[lL][[:space:]]*=.*&[[:space:]]*0x[fF][fF][fF][fF]/) { my $herevet = "$here\n" . cat_vet($line) . "\n"; - ERROR("use the LO() macro, not (... & 0xFFFF)\n" . $herevet); + ERROR("LO_MACRO", + "use the LO() macro, not (... & 0xFFFF)\n" . $herevet); } if ($line =~ /\.[hH][[:space:]]*=.*>>[[:space:]]*16/) { my $herevet = "$here\n" . cat_vet($line) . "\n"; - ERROR("use the HI() macro, not (... >> 16)\n" . $herevet); + ERROR("HI_MACRO", + "use the HI() macro, not (... >> 16)\n" . $herevet); } } @@ -1509,22 +1768,19 @@ sub process { # at the beginning of a line any tabs must come first and anything # more than 8 must use tabs. - if ($tabs && ($rawline =~ /^\+\s* \t\s*\S/ || - $rawline =~ /^\+\s* \s*/)) { - my $herevet = "$here\n" . cat_vet($rawline) . "\n"; - ERROR("code indent should use tabs where possible\n" . $herevet); - $rpt_cleaners = 1; - - } elsif (! $tabs && $rawline =~ /^\+.*\t/) { + if ($rawline =~ /^\+\s* \t\s*\S/ || + $rawline =~ /^\+\s* \s*/) { my $herevet = "$here\n" . cat_vet($rawline) . "\n"; - ERROR("code indent should use spaces where possible\n" . $herevet); + ERROR("CODE_INDENT", + "code indent should use tabs where possible\n" . $herevet); $rpt_cleaners = 1; } # check for space before tabs. if ($rawline =~ /^\+/ && $rawline =~ / \t/) { my $herevet = "$here\n" . cat_vet($rawline) . "\n"; - WARN("please, no space before tabs\n" . $herevet); + WARN("SPACE_BEFORE_TAB", + "please, no space before tabs\n" . $herevet); } # check for spaces at the beginning of a line. @@ -1532,9 +1788,10 @@ sub process { # 1) within comments # 2) indented preprocessor commands # 3) hanging labels - if ($tabs && $rawline =~ /^\+ / && $line !~ /\+ *(?:$;|#|$Ident:)/) { + if ($rawline =~ /^\+ / && $line !~ /\+ *(?:$;|#|$Ident:)/) { my $herevet = "$here\n" . cat_vet($rawline) . "\n"; - WARN("please, no spaces at the start of a line\n" . $herevet); + WARN("LEADING_SPACE", + "please, no spaces at the start of a line\n" . $herevet); } # check we are in a valid C source file if not then ignore this hunk @@ -1542,28 +1799,43 @@ sub process { # check for RCS/CVS revision markers if ($rawline =~ /^\+.*\$(Revision|Log|Id)(?:\$|)/) { - WARN("CVS style keyword markers, these will _not_ be updated\n". $herecurr); + WARN("CVS_KEYWORD", + "CVS style keyword markers, these will _not_ be updated\n". $herecurr); } # Blackfin: don't use __builtin_bfin_[cs]sync if ($line =~ /__builtin_bfin_csync/) { my $herevet = "$here\n" . cat_vet($line) . "\n"; - ERROR("use the CSYNC() macro in asm/blackfin.h\n" . $herevet); + ERROR("CSYNC", + "use the CSYNC() macro in asm/blackfin.h\n" . $herevet); } if ($line =~ /__builtin_bfin_ssync/) { my $herevet = "$here\n" . cat_vet($line) . "\n"; - ERROR("use the SSYNC() macro in asm/blackfin.h\n" . $herevet); + ERROR("SSYNC", + "use the SSYNC() macro in asm/blackfin.h\n" . $herevet); } # Check for potential 'bare' types my ($stat, $cond, $line_nr_next, $remain_next, $off_next, $realline_next); - if ($realcnt && $line =~ /.\s*\S/) { +#print "LINE<$line>\n"; + if ($linenr >= $suppress_statement && + $realcnt && $line =~ /.\s*\S/) { ($stat, $cond, $line_nr_next, $remain_next, $off_next) = ctx_statement_block($linenr, $realcnt, 0); $stat =~ s/\n./\n /g; $cond =~ s/\n./\n /g; +#print "linenr<$linenr> <$stat>\n"; + # If this statement has no statement boundaries within + # it there is no point in retrying a statement scan + # until we hit end of it. + my $frag = $stat; $frag =~ s/;+\s*$//; + if ($frag !~ /(?:{|;)/) { +#print "skip<$line_nr_next>\n"; + $suppress_statement = $line_nr_next; + } + # Find the real next line. $realline_next = $line_nr_next; if (defined $realline_next && @@ -1641,7 +1913,8 @@ sub process { } } if ($err ne '') { - ERROR("switch and case should be at the same indent\n$hereline$err"); + ERROR("SWITCH_CASE_INDENT_LEVEL", + "switch and case should be at the same indent\n$hereline$err"); } } @@ -1651,6 +1924,12 @@ sub process { my $pre_ctx = "$1$2"; my ($level, @ctx) = ctx_statement_level($linenr, $realcnt, 0); + + if ($line =~ /^\+\t{6,}/) { + WARN("DEEP_INDENTATION", + "Too many leading tabs - consider code refactoring\n" . $herecurr); + } + my $ctx_cnt = $realcnt - $#ctx - 1; my $ctx = join("\n", @ctx); @@ -1669,7 +1948,8 @@ sub process { #print "pre<$pre_ctx>\nline<$line>\nctx<$ctx>\nnext<$lines[$ctx_ln - 1]>\n"; if ($ctx !~ /{\s*/ && defined($lines[$ctx_ln -1]) && $lines[$ctx_ln - 1] =~ /^\+\s*{/) { - ERROR("that open brace { should be on the previous line\n" . + ERROR("OPEN_BRACE", + "that open brace { should be on the previous line\n" . "$here\n$ctx\n$rawlines[$ctx_ln - 1]\n"); } if ($level == 0 && $pre_ctx !~ /}\s*while\s*\($/ && @@ -1678,7 +1958,8 @@ sub process { { my ($nlength, $nindent) = line_stats($lines[$ctx_ln - 1]); if ($nindent > $indent) { - WARN("trailing semicolon indicates no statements, indent implies otherwise\n" . + WARN("TRAILING_SEMICOLON", + "trailing semicolon indicates no statements, indent implies otherwise\n" . "$here\n$ctx\n$rawlines[$ctx_ln - 1]\n"); } } @@ -1686,6 +1967,9 @@ sub process { # Check relative indent for conditionals and blocks. if ($line =~ /\b(?:(?:if|while|for)\s*\(|do\b)/ && $line !~ /^.\s*#/ && $line !~ /\}\s*while\s*/) { + ($stat, $cond, $line_nr_next, $remain_next, $off_next) = + ctx_statement_block($linenr, $realcnt, 0) + if (!defined $stat); my ($s, $c) = ($stat, $cond); substr($s, 0, length($c), ''); @@ -1766,7 +2050,8 @@ sub process { if ($check && (($sindent % 8) != 0 || ($sindent <= $indent && $s ne ''))) { - WARN("suspect code indent for conditional statements ($indent, $sindent)\n" . $herecurr . "$stat_real\n"); + WARN("SUSPECT_CODE_INDENT", + "suspect code indent for conditional statements ($indent, $sindent)\n" . $herecurr . "$stat_real\n"); } } @@ -1789,18 +2074,22 @@ sub process { # TEST: allow direct testing of the type matcher. if ($dbg_type) { if ($line =~ /^.\s*$Declare\s*$/) { - ERROR("TEST: is type\n" . $herecurr); + ERROR("TEST_TYPE", + "TEST: is type\n" . $herecurr); } elsif ($dbg_type > 1 && $line =~ /^.+($Declare)/) { - ERROR("TEST: is not type ($1 is)\n". $herecurr); + ERROR("TEST_NOT_TYPE", + "TEST: is not type ($1 is)\n". $herecurr); } next; } # TEST: allow direct testing of the attribute matcher. if ($dbg_attr) { if ($line =~ /^.\s*$Modifier\s*$/) { - ERROR("TEST: is attr\n" . $herecurr); + ERROR("TEST_ATTR", + "TEST: is attr\n" . $herecurr); } elsif ($dbg_attr > 1 && $line =~ /^.+($Modifier)/) { - ERROR("TEST: is not attr ($1 is)\n". $herecurr); + ERROR("TEST_NOT_ATTR", + "TEST: is not attr ($1 is)\n". $herecurr); } next; } @@ -1808,7 +2097,8 @@ sub process { # check for initialisation to aggregates open brace on the next line if ($line =~ /^.\s*{/ && $prevline =~ /(?:^|[^=])=\s*$/) { - ERROR("that open brace { should be on the previous line\n" . $hereprev); + ERROR("OPEN_BRACE", + "that open brace { should be on the previous line\n" . $hereprev); } # @@ -1819,14 +2109,16 @@ sub process { if ($rawline =~ m{^.\s*\#\s*include\s+[<"](.*)[">]}) { my $path = $1; if ($path =~ m{//}) { - ERROR("malformed #include filename\n" . + ERROR("MALFORMED_INCLUDE", + "malformed #include filename\n" . $herecurr); } } # no C99 // comments if ($line =~ m{//}) { - ERROR("do not use C99 // comments\n" . $herecurr); + ERROR("C99_COMMENTS", + "do not use C99 // comments\n" . $herecurr); } # Remove C99 comments. $line =~ s@//.*@@; @@ -1845,7 +2137,7 @@ sub process { # XXX(foo); # EXPORT_SYMBOL(something_foo); my $name = $1; - if ($stat =~ /^.([A-Z_]+)\s*\(\s*($Ident)/ && + if ($stat =~ /^(?:.\s*}\s*\n)?.([A-Z_]+)\s*\(\s*($Ident)/ && $name =~ /^${Ident}_$2/) { #print "FOO C name<$name>\n"; $suppress_export{$realline_next} = 1; @@ -1873,35 +2165,41 @@ sub process { } if (defined $suppress_export{$linenr} && $suppress_export{$linenr} == 2) { - WARN("EXPORT_SYMBOL(foo); should immediately follow its function/variable\n" . $herecurr); + WARN("EXPORT_SYMBOL", + "EXPORT_SYMBOL(foo); should immediately follow its function/variable\n" . $herecurr); } # check for global initialisers. if ($line =~ /^.$Type\s*$Ident\s*(?:\s+$Modifier)*\s*=\s*(0|NULL|false)\s*;/) { - ERROR("do not initialise globals to 0 or NULL\n" . + ERROR("GLOBAL_INITIALISERS", + "do not initialise globals to 0 or NULL\n" . $herecurr); } # check for static initialisers. if ($line =~ /\bstatic\s.*=\s*(0|NULL|false)\s*;/) { - ERROR("do not initialise statics to 0 or NULL\n" . + ERROR("INITIALISED_STATIC", + "do not initialise statics to 0 or NULL\n" . $herecurr); } # check for static const char * arrays. if ($line =~ /\bstatic\s+const\s+char\s*\*\s*(\w+)\s*\[\s*\]\s*=\s*/) { - WARN("static const char * array should probably be static const char * const\n" . + WARN("STATIC_CONST_CHAR_ARRAY", + "static const char * array should probably be static const char * const\n" . $herecurr); } # check for static char foo[] = "bar" declarations. if ($line =~ /\bstatic\s+char\s+(\w+)\s*\[\s*\]\s*=\s*"/) { - WARN("static char array declaration should probably be static const char\n" . + WARN("STATIC_CONST_CHAR_ARRAY", + "static char array declaration should probably be static const char\n" . $herecurr); } # check for declarations of struct pci_device_id if ($line =~ /\bstruct\s+pci_device_id\s+\w+\s*\[\s*\]\s*\=\s*\{/) { - WARN("Use DEFINE_PCI_DEVICE_TABLE for struct pci_device_id\n" . $herecurr); + WARN("DEFINE_PCI_DEVICE_TABLE", + "Use DEFINE_PCI_DEVICE_TABLE for struct pci_device_id\n" . $herecurr); } # check for new typedefs, only function parameters and sparse annotations @@ -1911,13 +2209,15 @@ sub process { $line !~ /\btypedef\s+$Type\s+$Ident\s*\(/ && $line !~ /\b$typeTypedefs\b/ && $line !~ /\b__bitwise(?:__|)\b/) { - WARN("do not add new typedefs\n" . $herecurr); + WARN("NEW_TYPEDEFS", + "do not add new typedefs\n" . $herecurr); } # * goes on variable not on type # (char*[ const]) - if ($line =~ m{\($NonptrType(\s*(?:$Modifier\b\s*|\*\s*)+)\)}) { - my ($from, $to) = ($1, $1); + while ($line =~ m{(\($NonptrType(\s*(?:$Modifier\b\s*|\*\s*)+)\))}g) { + #print "AA<$1>\n"; + my ($from, $to) = ($2, $2); # Should start with a space. $to =~ s/^(\S)/ $1/; @@ -1929,10 +2229,13 @@ sub process { #print "from<$from> to<$to>\n"; if ($from ne $to) { - ERROR("\"(foo$from)\" should be \"(foo$to)\"\n" . $herecurr); + ERROR("POINTER_LOCATION", + "\"(foo$from)\" should be \"(foo$to)\"\n" . $herecurr); } - } elsif ($line =~ m{\b$NonptrType(\s*(?:$Modifier\b\s*|\*\s*)+)($Ident)}) { - my ($from, $to, $ident) = ($1, $1, $2); + } + while ($line =~ m{(\b$NonptrType(\s*(?:$Modifier\b\s*|\*\s*)+)($Ident))}g) { + #print "BB<$1>\n"; + my ($from, $to, $ident) = ($2, $2, $3); # Should start with a space. $to =~ s/^(\S)/ $1/; @@ -1946,18 +2249,27 @@ sub process { #print "from<$from> to<$to> ident<$ident>\n"; if ($from ne $to && $ident !~ /^$Modifier$/) { - ERROR("\"foo${from}bar\" should be \"foo${to}bar\"\n" . $herecurr); + ERROR("POINTER_LOCATION", + "\"foo${from}bar\" should be \"foo${to}bar\"\n" . $herecurr); } } # # no BUG() or BUG_ON() # if ($line =~ /\b(BUG|BUG_ON)\b/) { -# WARN("Try to use WARN_ON & Recovery code rather than BUG() or BUG_ON()\n"); +# print "Try to use WARN_ON & Recovery code rather than BUG() or BUG_ON()\n"; +# print "$herecurr"; +# $clean = 0; # } - if ($line =~ /\bLINUX_VERSION_CODE\b/ && - $realfile !~ /compat/) { - WARN("LINUX_VERSION_CODE should be avoided, code should be for the version to which it is merged\n" . $herecurr); + if ($line =~ /\bLINUX_VERSION_CODE\b/) { + WARN("LINUX_VERSION_CODE", + "LINUX_VERSION_CODE should be avoided, code should be for the version to which it is merged\n" . $herecurr); + } + +# check for uses of printk_ratelimit + if ($line =~ /\bprintk_ratelimit\s*\(/) { + WARN("PRINTK_RATELIMITED", +"Prefer printk_ratelimited or pr__ratelimited to printk_ratelimit\n" . $herecurr); } # printk should use KERN_* levels. Note that follow on printk's on the @@ -1979,7 +2291,8 @@ sub process { } } if ($ok == 0) { - WARN("printk() should include KERN_ facility level\n" . $herecurr); + WARN("PRINTK_WITHOUT_KERN_LEVEL", + "printk() should include KERN_ facility level\n" . $herecurr); } } @@ -1987,18 +2300,21 @@ sub process { # or if closed on same line if (($line=~/$Type\s*$Ident\(.*\).*\s{/) and !($line=~/\#\s*define.*do\s{/) and !($line=~/}/)) { - ERROR("open brace '{' following function declarations go on the next line\n" . $herecurr); + ERROR("OPEN_BRACE", + "open brace '{' following function declarations go on the next line\n" . $herecurr); } # open braces for enum, union and struct go on the same line. if ($line =~ /^.\s*{/ && $prevline =~ /^.\s*(?:typedef\s+)?(enum|union|struct)(?:\s+$Ident)?\s*$/) { - ERROR("open brace '{' following $1 go on the same line\n" . $hereprev); + ERROR("OPEN_BRACE", + "open brace '{' following $1 go on the same line\n" . $hereprev); } # missing space after union, struct or enum definition if ($line =~ /^.\s*(?:typedef\s+)?(enum|union|struct)(?:\s+$Ident)?(?:\s+$Ident)?[=\{]/) { - WARN("missing space after $1 definition\n" . $herecurr); + WARN("SPACING", + "missing space after $1 definition\n" . $herecurr); } # check for spacing round square brackets; allowed: @@ -2010,7 +2326,8 @@ sub process { if ($prefix !~ /$Type\s+$/ && ($where != 0 || $prefix !~ /^.\s+$/) && $prefix !~ /{\s+$/) { - ERROR("space prohibited before open square bracket '['\n" . $herecurr); + ERROR("BRACKET_SPACE", + "space prohibited before open square bracket '['\n" . $herecurr); } } @@ -2041,7 +2358,8 @@ sub process { } elsif ($ctx =~ /$Type$/) { } else { - WARN("space prohibited between function name and open parenthesis '('\n" . $herecurr); + WARN("SPACING", + "space prohibited between function name and open parenthesis '('\n" . $herecurr); } } # Check operator spacing. @@ -2114,9 +2432,9 @@ sub process { # ; should have either the end of line or a space or \ after it } elsif ($op eq ';') { if ($ctx !~ /.x[WEBC]/ && - $cc !~ /^\\/ && $cc !~ /^;/ && - $length <= 79) { - ERROR("space required after that '$op' $at\n" . $hereptr); + $cc !~ /^\\/ && $cc !~ /^;/) { + ERROR("SPACING", + "space required after that '$op' $at\n" . $hereptr); } # // is a comment @@ -2127,16 +2445,15 @@ sub process { # : when part of a bitfield } elsif ($op eq '->' || $opv eq ':B') { if ($ctx =~ /Wx.|.xW/) { - ERROR("spaces prohibited around that '$op' $at\n" . $hereptr); + ERROR("SPACING", + "spaces prohibited around that '$op' $at\n" . $hereptr); } # , must have a space on the right. } elsif ($op eq ',') { - if ($ctx !~ /.x[WEC]/ && $cc !~ /^}/ && - $length <= 79 && - $line !~ /KERNEL_VERSION/ && - $line !~ /OBD_OCD_VERSION/) { - WARN("space required after that '$op' $at\n" . $hereptr); + if ($ctx !~ /.x[WEC]/ && $cc !~ /^}/) { + ERROR("SPACING", + "space required after that '$op' $at\n" . $hereptr); } # '*' as part of a type definition -- reported already. @@ -2150,26 +2467,31 @@ sub process { $opv eq '*U' || $opv eq '-U' || $opv eq '&U' || $opv eq '&&U') { if ($ctx !~ /[WEBC]x./ && $ca !~ /(?:\)|!|~|\*|-|\&|\||\+\+|\-\-|\{)$/) { - ERROR("space required before that '$op' $at\n" . $hereptr); + ERROR("SPACING", + "space required before that '$op' $at\n" . $hereptr); } if ($op eq '*' && $cc =~/\s*$Modifier\b/) { # A unary '*' may be const } elsif ($ctx =~ /.xW/) { - ERROR("space prohibited after that '$op' $at\n" . $hereptr); + ERROR("SPACING", + "space prohibited after that '$op' $at\n" . $hereptr); } # unary ++ and unary -- are allowed no space on one side. } elsif ($op eq '++' or $op eq '--') { if ($ctx !~ /[WEOBC]x[^W]/ && $ctx !~ /[^W]x[WOBEC]/) { - ERROR("space required one side of that '$op' $at\n" . $hereptr); + ERROR("SPACING", + "space required one side of that '$op' $at\n" . $hereptr); } if ($ctx =~ /Wx[BE]/ || ($ctx =~ /Wx./ && $cc =~ /^;/)) { - ERROR("space prohibited before that '$op' $at\n" . $hereptr); + ERROR("SPACING", + "space prohibited before that '$op' $at\n" . $hereptr); } if ($ctx =~ /ExW/) { - ERROR("space prohibited after that '$op' $at\n" . $hereptr); + ERROR("SPACING", + "space prohibited after that '$op' $at\n" . $hereptr); } @@ -2181,7 +2503,8 @@ sub process { $op eq '%') { if ($ctx =~ /Wx[^WCE]|[^WCE]xW/) { - ERROR("need consistent spacing around '$op' $at\n" . + ERROR("SPACING", + "need consistent spacing around '$op' $at\n" . $hereptr); } @@ -2189,7 +2512,8 @@ sub process { # terminating a case value or a label. } elsif ($opv eq ':C' || $opv eq ':L') { if ($ctx =~ /Wx./) { - ERROR("space prohibited before that '$op' $at\n" . $hereptr); + ERROR("SPACING", + "space prohibited before that '$op' $at\n" . $hereptr); } # All the others need spaces both sides. @@ -2211,12 +2535,9 @@ sub process { $ok = 1; } - if ($length >= 79) { - $ok = 1; - } - if ($ok == 0) { - ERROR("spaces required around that '$op' $at\n" . $hereptr); + ERROR("SPACING", + "spaces required around that '$op' $at\n" . $hereptr); } } $off += length($elements[$n + 1]); @@ -2225,7 +2546,8 @@ sub process { # check for multiple assignments if ($line =~ /^.\s*$Lval\s*=\s*$Lval\s*=(?!=)/) { - CHK("multiple assignments should be avoided\n" . $herecurr); + CHK("MULTIPLE_ASSIGNMENTS", + "multiple assignments should be avoided\n" . $herecurr); } ## # check for multiple declarations, allowing for a function declaration @@ -2239,46 +2561,54 @@ sub process { ## while ($ln =~ s/\([^\(\)]*\)//g) { ## } ## if ($ln =~ /,/) { -## WARN("declaring multiple variables together should be avoided\n" . $herecurr); +## WARN("MULTIPLE_DECLARATION", +## "declaring multiple variables together should be avoided\n" . $herecurr); ## } ## } #need space before brace following if, while, etc - if ((($line =~ /\(.*\){/ && $line !~ /\($Type\){/) || - $line =~ /do{/) && $length <= 79) { - ERROR("space required before the open brace '{'\n" . $herecurr); + if (($line =~ /\(.*\){/ && $line !~ /\($Type\){/) || + $line =~ /do{/) { + ERROR("SPACING", + "space required before the open brace '{'\n" . $herecurr); } # closing brace should have a space following it when it has anything # on the line if ($line =~ /}(?!(?:,|;|\)))\S/) { - ERROR("space required after that close brace '}'\n" . $herecurr); + ERROR("SPACING", + "space required after that close brace '}'\n" . $herecurr); } # check spacing on square brackets if ($line =~ /\[\s/ && $line !~ /\[\s*$/) { - ERROR("space prohibited after that open square bracket '['\n" . $herecurr); + ERROR("SPACING", + "space prohibited after that open square bracket '['\n" . $herecurr); } if ($line =~ /\s\]/) { - ERROR("space prohibited before that close square bracket ']'\n" . $herecurr); + ERROR("SPACING", + "space prohibited before that close square bracket ']'\n" . $herecurr); } # check spacing on parentheses if ($line =~ /\(\s/ && $line !~ /\(\s*(?:\\)?$/ && $line !~ /for\s*\(\s+;/) { - ERROR("space prohibited after that open parenthesis '('\n" . $herecurr); + ERROR("SPACING", + "space prohibited after that open parenthesis '('\n" . $herecurr); } if ($line =~ /(\s+)\)/ && $line !~ /^.\s*\)/ && $line !~ /for\s*\(.*;\s+\)/ && $line !~ /:\s+\)/) { - ERROR("space prohibited before that close parenthesis ')'\n" . $herecurr); + ERROR("SPACING", + "space prohibited before that close parenthesis ')'\n" . $herecurr); } #goto labels aren't indented, allow a single space however -# if ($line=~/^.\s+[A-Za-z\d_]+:(?![0-9]+)/ and -# !($line=~/^. [A-Za-z\d_]+:/) and !($line=~/^.\s+default:/)) { -# WARN("labels should not be indented\n" . $herecurr); -# } + if ($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" . $herecurr); + } # Return is not a function. if (defined($stat) && $stat =~ /^.\s*return(\s*)(\(.*);/s) { @@ -2288,7 +2618,7 @@ sub process { # Flatten any parentheses $value =~ s/\(/ \(/g; $value =~ s/\)/\) /g; - while ($value =~ s/\[[^\{\}]*\]/1/ || + while ($value =~ s/\[[^\[\]]*\]/1/ || $value !~ /(?:$Ident|-?$Constant)\s* $Compare\s* (?:$Ident|-?$Constant)/x && @@ -2296,28 +2626,34 @@ sub process { } #print "value<$value>\n"; if ($value =~ /^\s*(?:$Ident|-?$Constant)\s*$/) { - ERROR("return is not a function, parentheses are not required\n" . $herecurr); + ERROR("RETURN_PARENTHESES", + "return is not a function, parentheses are not required\n" . $herecurr); } elsif ($spacing !~ /\s+/) { - ERROR("space required before the open parenthesis '('\n" . $herecurr); + ERROR("SPACING", + "space required before the open parenthesis '('\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 = $1; if ($name ne 'EOF' && $name ne 'ERROR') { - WARN("return of an errno should typically be -ve (return -$1)\n" . $herecurr); + WARN("USE_NEGATIVE_ERRNO", + "return of an errno should typically be -ve (return -$1)\n" . $herecurr); } } # Need a space before open parenthesis after if, while etc if ($line=~/\b(if|while|for|switch)\(/) { - ERROR("space required before the open parenthesis '('\n" . $herecurr); + ERROR("SPACING", "space required before the open parenthesis '('\n" . $herecurr); } # Check for illegal assignment in if conditional -- and check for trailing # statements after the conditional. if ($line =~ /do\s*(?!{)/) { + ($stat, $cond, $line_nr_next, $remain_next, $off_next) = + ctx_statement_block($linenr, $realcnt, 0) + if (!defined $stat); my ($stat_next) = ctx_statement_block($line_nr_next, $remain_next, $off_next); $stat_next =~ s/\n./\n /g; @@ -2340,7 +2676,8 @@ sub process { my ($s, $c) = ($stat, $cond); if ($c =~ /\bif\s*\(.*[^<>!=]=[^=].*/s) { - ERROR("do not use assignment in if condition\n" . $herecurr); + ERROR("ASSIGN_IN_IF", + "do not use assignment in if condition\n" . $herecurr); } # Find out what is on the end of the line after the @@ -2362,7 +2699,8 @@ sub process { $stat_real = "[...]\n$stat_real"; } - ERROR("trailing statements should be on next line\n" . $herecurr . $stat_real); + ERROR("TRAILING_STATEMENTS", + "trailing statements should be on next line\n" . $herecurr . $stat_real); } } @@ -2378,7 +2716,8 @@ sub process { (?:\&\&|\|\||\)|\]) )/x) { - WARN("boolean test with hexadecimal, perhaps just 1 \& or \|?\n" . $herecurr); + WARN("HEXADECIMAL_BOOLEAN_TEST", + "boolean test with hexadecimal, perhaps just 1 \& or \|?\n" . $herecurr); } # if and else should not have general statements after it @@ -2386,12 +2725,14 @@ sub process { 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); + ERROR("TRAILING_STATEMENTS", + "trailing statements should be on next line\n" . $herecurr); } } # if should not continue a brace if ($line =~ /}\s*if\b/) { - ERROR("trailing statements should be on next line\n" . + ERROR("TRAILING_STATEMENTS", + "trailing statements should be on next line\n" . $herecurr); } # case and default should not have general statements after them @@ -2401,14 +2742,16 @@ sub process { \s*return\s+ )/xg) { - ERROR("trailing statements should be on next line\n" . $herecurr); + ERROR("TRAILING_STATEMENTS", + "trailing statements should be on next line\n" . $herecurr); } # Check for }else {, these must be at the same # indent level to be relevant to each other. if ($prevline=~/}\s*$/ and $line=~/^.\s*else\s*/ and $previndent == $indent) { - ERROR("else should follow close brace '}'\n" . $hereprev); + ERROR("ELSE_AFTER_BRACE", + "else should follow close brace '}'\n" . $hereprev); } if ($prevline=~/}\s*$/ and $line=~/^.\s*while\s*/ and @@ -2421,18 +2764,22 @@ sub process { $s =~ s/\n.*//g; if ($s =~ /^\s*;/) { - ERROR("while should follow close brace '}'\n" . $hereprev); + ERROR("WHILE_AFTER_BRACE", + "while should follow close brace '}'\n" . $hereprev); } } #studly caps, commented out until figure out how to distinguish between use of existing and adding new # if (($line=~/[\w_][a-z\d]+[A-Z]/) and !($line=~/print/)) { -# WARN("No studly caps, use _\n"); +# print "No studly caps, use _\n"; +# print "$herecurr"; +# $clean = 0; # } #no spaces allowed after \ in define if ($line=~/\#\s*define.*\\\s$/) { - WARN("Whitepspace after \\ makes next lines useless\n" . $herecurr); + WARN("WHITESPACE_AFTER_LINE_CONTINUATION", + "Whitepspace after \\ makes next lines useless\n" . $herecurr); } #warn if is #included and is available (uses RAW line) @@ -2444,9 +2791,11 @@ sub process { $1 !~ /$allowed_asm_includes/) { if ($realfile =~ m{^arch/}) { - CHK("Consider using #include instead of \n" . $herecurr); + CHK("ARCH_INCLUDE_LINUX", + "Consider using #include instead of \n" . $herecurr); } else { - WARN("Use #include instead of \n" . $herecurr); + WARN("INCLUDE_LINUX", + "Use #include instead of \n" . $herecurr); } } } @@ -2460,47 +2809,13 @@ sub process { my $cnt = $realcnt; my ($off, $dstat, $dcond, $rest); my $ctx = ''; - - my $args = defined($1); - - # Find the end of the macro and limit our statement - # search to that. - while ($cnt > 0 && defined $lines[$ln - 1] && - $lines[$ln - 1] =~ /^(?:-|..*\\$)/) - { - $ctx .= $rawlines[$ln - 1] . "\n"; - $cnt-- if ($lines[$ln - 1] !~ /^-/); - $ln++; - } - $ctx .= $rawlines[$ln - 1]; - ($dstat, $dcond, $ln, $cnt, $off) = - ctx_statement_block($linenr, $ln - $linenr + 1, 0); + ctx_statement_block($linenr, $realcnt, 0); + $ctx = $dstat; #print "dstat<$dstat> dcond<$dcond> cnt<$cnt> off<$off>\n"; #print "LINE<$lines[$ln-1]> len<" . length($lines[$ln-1]) . "\n"; - # Extract the remainder of the define (if any) and - # rip off surrounding spaces, and trailing \'s. - $rest = ''; - while ($off != 0 || ($cnt > 0 && $rest =~ /\\\s*$/)) { - #print "ADDING cnt<$cnt> $off <" . substr($lines[$ln - 1], $off) . "> rest<$rest>\n"; - if ($off != 0 || $lines[$ln - 1] !~ /^-/) { - $rest .= substr($lines[$ln - 1], $off) . "\n"; - $cnt--; - } - $ln++; - $off = 0; - } - $rest =~ s/\\\n.//g; - $rest =~ s/^\s*//s; - $rest =~ s/\s*$//s; - - # Clean up the original statement. - if ($args) { - substr($dstat, 0, length($dcond), ''); - } else { - $dstat =~ s/^.\s*\#\s*define\s+$Ident\s*//; - } + $dstat =~ s/^.\s*\#\s*define\s+$Ident(?:\([^\)]*\))?\s*//; $dstat =~ s/$;//g; $dstat =~ s/\\\n.//g; $dstat =~ s/^\s*//s; @@ -2509,7 +2824,7 @@ sub process { # Flatten any parentheses and braces while ($dstat =~ s/\([^\(\)]*\)/1/ || $dstat =~ s/\{[^\{\}]*\}/1/ || - $dstat =~ s/\[[^\{\}]*\]/1/) + $dstat =~ s/\[[^\[\]]*\]/1/) { } @@ -2526,21 +2841,32 @@ sub process { ^\"|\"$ }x; #print "REST<$rest> dstat<$dstat> ctx<$ctx>\n"; - if ($rest ne '' && $rest ne ',') { - if ($rest !~ /while\s*\(/ && - $dstat !~ /$exceptions/) - { - ERROR("Macros with multiple statements should be enclosed in a do - while loop\n" . "$here\n$ctx\n"); + if ($dstat ne '' && + $dstat !~ /^(?:$Ident|-?$Constant),$/ && # 10, // foo(), + $dstat !~ /^(?:$Ident|-?$Constant);$/ && # foo(); + $dstat !~ /^(?:$Ident|-?$Constant)$/ && # 10 // foo() + $dstat !~ /$exceptions/ && + $dstat !~ /^\.$Ident\s*=/ && # .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 !~ /^\({/) # ({... + { + $ctx =~ s/\n*$//; + my $herectx = $here . "\n"; + my $cnt = statement_rawlines($ctx); + + for (my $n = 0; $n < $cnt; $n++) { + $herectx .= raw_line($linenr, $n) . "\n"; } - } elsif ($ctx !~ /;/) { - if ($dstat ne '' && - $dstat !~ /^(?:$Ident|-?$Constant)$/ && - $dstat !~ /$exceptions/ && - $dstat !~ /^\.$Ident\s*=/ && - $dstat =~ /$Operators/) - { - ERROR("Macros with complex values should be enclosed in parenthesis\n" . "$here\n$ctx\n"); + if ($dstat =~ /;/) { + ERROR("MULTISTATEMENT_MACRO_USE_DO_WHILE", + "Macros with multiple statements should be enclosed in a do - while loop\n" . "$herectx"); + } else { + ERROR("COMPLEX_MACRO", + "Macros with complex values should be enclosed in parenthesis\n" . "$herectx"); } } } @@ -2551,7 +2877,8 @@ sub process { # ALIGN(...) # VMLINUX_SYMBOL(...) if ($realfile eq 'vmlinux.lds.h' && $line =~ /(?:(?:^|\s)$Ident\s*=|=\s*$Ident(?:\s|$))/) { - WARN("vmlinux.lds.h needs VMLINUX_SYMBOL() around C-visible symbols\n" . $herecurr); + WARN("MISSING_VMLINUX_SYMBOL", + "vmlinux.lds.h needs VMLINUX_SYMBOL() around C-visible symbols\n" . $herecurr); } # check for redundant bracing round if etc @@ -2599,7 +2926,8 @@ sub process { } } if ($seen && !$allowed) { - WARN("braces {} are not necessary for any arm of this statement\n" . $herectx); + WARN("BRACES", + "braces {} are not necessary for any arm of this statement\n" . $herectx); } } } @@ -2646,40 +2974,45 @@ sub process { } } if ($level == 0 && $block =~ /^\s*\{/ && !$allowed) { - my $herectx = $here . "\n";; + my $herectx = $here . "\n"; my $cnt = statement_rawlines($block); for (my $n = 0; $n < $cnt; $n++) { - $herectx .= raw_line($linenr, $n) . "\n";; + $herectx .= raw_line($linenr, $n) . "\n"; } - WARN("braces {} are not necessary for single statement blocks\n" . $herectx); + WARN("BRACES", + "braces {} are not necessary for single statement blocks\n" . $herectx); } } # don't include deprecated include files (uses RAW line) for my $inc (@dep_includes) { if ($rawline =~ m@^.\s*\#\s*include\s*\<$inc>@) { - ERROR("Don't use <$inc>: see Documentation/feature-removal-schedule.txt\n" . $herecurr); + ERROR("DEPRECATED_INCLUDE", + "Don't use <$inc>: see Documentation/feature-removal-schedule.txt\n" . $herecurr); } } # don't use deprecated functions for my $func (@dep_functions) { if ($line =~ /\b$func\b/) { - ERROR("Don't use $func(): see Documentation/feature-removal-schedule.txt\n" . $herecurr); + ERROR("DEPRECATED_FUNCTION", + "Don't use $func(): see Documentation/feature-removal-schedule.txt\n" . $herecurr); } } # no volatiles please my $asm_volatile = qr{\b(__asm__|asm)\s+(__volatile__|volatile)\b}; if ($line =~ /\bvolatile\b/ && $line !~ /$asm_volatile/) { - WARN("Use of volatile is usually wrong: see Documentation/volatile-considered-harmful.txt\n" . $herecurr); + WARN("VOLATILE", + "Use of volatile is usually wrong: see Documentation/volatile-considered-harmful.txt\n" . $herecurr); } # warn about #if 0 if ($line =~ /^.\s*\#\s*if\s+0\b/) { - CHK("if this code is redundant consider removing it\n" . + CHK("REDUNDANT_CODE", + "if this code is redundant consider removing it\n" . $herecurr); } @@ -2687,14 +3020,16 @@ sub process { if ($prevline =~ /\bif\s*\(([^\)]*)\)/) { my $expr = $1; if ($line =~ /\bkfree\(\Q$expr\E\);/) { - WARN("kfree(NULL) is safe this check is probably not required\n" . $hereprev); + WARN("NEEDLESS_KFREE", + "kfree(NULL) is safe this check is probably not required\n" . $hereprev); } } # check for needless usb_free_urb() checks if ($prevline =~ /\bif\s*\(([^\)]*)\)/) { my $expr = $1; if ($line =~ /\busb_free_urb\(\Q$expr\E\);/) { - WARN("usb_free_urb(NULL) is safe this check is probably not required\n" . $hereprev); + WARN("NEEDLESS_USB_FREE_URB", + "usb_free_urb(NULL) is safe this check is probably not required\n" . $hereprev); } } @@ -2702,25 +3037,30 @@ sub process { if ($line =~ /\budelay\s*\(\s*(\w+)\s*\)/) { # ignore udelay's < 10, however if (! (($1 =~ /(\d+)/) && ($1 < 10)) ) { - CHK("usleep_range is preferred over udelay; see Documentation/timers/timers-howto.txt\n" . $line); + CHK("USLEEP_RANGE", + "usleep_range is preferred over udelay; see Documentation/timers/timers-howto.txt\n" . $line); } } # warn about unexpectedly long msleep's if ($line =~ /\bmsleep\s*\((\d+)\);/) { if ($1 < 20) { - WARN("msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt\n" . $line); + WARN("MSLEEP", + "msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt\n" . $line); } } # warn about #ifdefs in C files # if ($line =~ /^.\s*\#\s*if(|n)def/ && ($realfile =~ /\.c$/)) { -# WARN("#ifdef in C files should be avoided\n"); +# print "#ifdef in C files should be avoided\n"; +# print "$herecurr"; +# $clean = 0; # } # warn about spacing in #ifdefs if ($line =~ /^.\s*\#\s*(ifdef|ifndef|elif)\s\s+/) { - ERROR("exactly one space required after that #$1\n" . $herecurr); + ERROR("SPACING", + "exactly one space required after that #$1\n" . $herecurr); } # check for spinlock_t definitions without a comment. @@ -2728,50 +3068,111 @@ sub process { $line =~ /^.\s*(DEFINE_MUTEX)\s*\(/) { my $which = $1; if (!ctx_has_comment($first_line, $linenr)) { - CHK("$1 definition without comment\n" . $herecurr); + CHK("UNCOMMENTED_DEFINITION", + "$1 definition without comment\n" . $herecurr); } } # check for memory barriers without a comment. if ($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 without comment\n" . $herecurr); + CHK("MEMORY_BARRIER", + "memory barrier without comment\n" . $herecurr); } } # check of hardware specific defines if ($line =~ m@^.\s*\#\s*if.*\b(__i386__|__powerpc64__|__sun__|__s390x__)\b@ && $realfile !~ m@include/asm-@) { - CHK("architecture specific defines should be avoided\n" . $herecurr); + CHK("ARCH_DEFINES", + "architecture specific defines should be avoided\n" . $herecurr); } # Check that the storage class is at the beginning of a declaration if ($line =~ /\b$Storage\b/ && $line !~ /^.\s*$Storage\b/) { - WARN("storage class should be at the beginning of the declaration\n" . $herecurr) + WARN("STORAGE_CLASS", + "storage class should be at the beginning of the declaration\n" . $herecurr) } # check the location of the inline attribute, that it is between # storage class and type. if ($line =~ /\b$Type\s+$Inline\b/ || $line =~ /\b$Inline\s+$Storage\b/) { - ERROR("inline keyword should sit between storage class and type\n" . $herecurr); + ERROR("INLINE_LOCATION", + "inline keyword should sit between storage class and type\n" . $herecurr); } # Check for __inline__ and __inline, prefer inline if ($line =~ /\b(__inline__|__inline)\b/) { - WARN("plain inline is preferred over $1\n" . $herecurr); + WARN("INLINE", + "plain inline is preferred over $1\n" . $herecurr); } # Check for __attribute__ packed, prefer __packed if ($line =~ /\b__attribute__\s*\(\s*\(.*\bpacked\b/) { - WARN("__packed is preferred over __attribute__((packed))\n" . $herecurr); + WARN("PREFER_PACKED", + "__packed is preferred over __attribute__((packed))\n" . $herecurr); + } + +# Check for __attribute__ aligned, prefer __aligned + if ($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" . $herecurr); } # check for sizeof(&) if ($line =~ /\bsizeof\s*\(\s*\&/) { - WARN("sizeof(& should be avoided\n" . $herecurr); + WARN("SIZEOF_ADDRESS", + "sizeof(& should be avoided\n" . $herecurr); } # check for line continuations in quoted strings with odd counts of " if ($rawline =~ /\\$/ && $rawline =~ tr/"/"/ % 2) { - WARN("Avoid line continuations in quoted strings\n" . $herecurr); + WARN("LINE_CONTINUATIONS", + "Avoid line continuations in quoted strings\n" . $herecurr); + } + +# Check for misused memsets + if (defined $stat && + $stat =~ /^\+(?:.*?)\bmemset\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\,\s*$FuncArg\s*\)/s) { + + my $ms_addr = $2; + my $ms_val = $8; + my $ms_size = $14; + + if ($ms_size =~ /^(0x|)0$/i) { + ERROR("MEMSET", + "memset to 0's uses 0 as the 2nd argument, not the 3rd\n" . "$here\n$stat\n"); + } elsif ($ms_size =~ /^(0x|)1$/i) { + WARN("MEMSET", + "single byte memset is suspicious. Swapped 2nd/3rd argument?\n" . "$here\n$stat\n"); + } + } + +# typecasts on min/max could be min_t/max_t + if (defined $stat && + $stat =~ /^\+(?:.*?)\b(min|max)\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\)/) { + if (defined $2 || defined $8) { + my $call = $1; + my $cast1 = deparenthesize($2); + my $arg1 = $3; + my $cast2 = deparenthesize($8); + my $arg2 = $9; + my $cast; + + if ($cast1 ne "" && $cast2 ne "") { + $cast = "$cast1 or $cast2"; + } elsif ($cast1 ne "") { + $cast = $cast1; + } else { + $cast = $cast2; + } + WARN("MINMAX", + "$call() should probably be ${call}_t($cast, $arg1, $arg2)\n" . "$here\n$stat\n"); + } } # check for new externs in .c files. @@ -2788,17 +3189,20 @@ sub process { if ($s =~ /^\s*;/ && $function_name ne 'uninitialized_var') { - WARN("externs should be avoided in .c files\n" . $herecurr); + WARN("AVOID_EXTERNS", + "externs should be avoided in .c files\n" . $herecurr); } if ($paren_space =~ /\n/) { - WARN("arguments for function declarations should follow identifier\n" . $herecurr); + WARN("FUNCTION_ARGUMENTS", + "arguments for function declarations should follow identifier\n" . $herecurr); } } elsif ($realfile =~ /\.c$/ && defined $stat && $stat =~ /^.\s*extern\s+/) { - WARN("externs should be avoided in .c files\n" . $herecurr); + WARN("AVOID_EXTERNS", + "externs should be avoided in .c files\n" . $herecurr); } # checks for new __setup's @@ -2806,37 +3210,44 @@ sub process { my $name = $1; if (!grep(/$name/, @setup_docs)) { - CHK("__setup appears un-documented -- check Documentation/kernel-parameters.txt\n" . $herecurr); + CHK("UNDOCUMENTED_SETUP", + "__setup appears un-documented -- check Documentation/kernel-parameters.txt\n" . $herecurr); } } # check for pointless casting of kmalloc return if ($line =~ /\*\s*\)\s*[kv][czm]alloc(_node){0,1}\b/) { - WARN("unnecessary cast may hide bugs, see http://c-faq.com/malloc/mallocnocast.html\n" . $herecurr); + WARN("UNNECESSARY_CASTS", + "unnecessary cast may hide bugs, see http://c-faq.com/malloc/mallocnocast.html\n" . $herecurr); } # check for multiple semicolons if ($line =~ /;\s*;\s*$/) { - WARN("Statements terminations use 1 semicolon\n" . $herecurr); + WARN("ONE_SEMICOLON", + "Statements terminations use 1 semicolon\n" . $herecurr); } # check for gcc specific __FUNCTION__ if ($line =~ /__FUNCTION__/) { - WARN("__func__ should be used instead of gcc specific __FUNCTION__\n" . $herecurr); + WARN("USE_FUNC", + "__func__ should be used instead of gcc specific __FUNCTION__\n" . $herecurr); } # check for semaphores initialized locked if ($line =~ /^.\s*sema_init.+,\W?0\W?\)/) { - WARN("consider using a completion\n" . $herecurr); + WARN("CONSIDER_COMPLETION", + "consider using a completion\n" . $herecurr); } -# recommend kstrto* over simple_strto* - if ($line =~ /\bsimple_(strto.*?)\s*\(/) { - WARN("consider using kstrto* in preference to simple_$1\n" . $herecurr); +# recommend kstrto* over simple_strto* and strict_strto* + if ($line =~ /\b((simple|strict)_(strto(l|ll|ul|ull)))\s*\(/) { + WARN("CONSIDER_KSTRTO", + "$1 is obsolete, use k$3 instead\n" . $herecurr); } # check for __initcall(), use device_initcall() explicitly please if ($line =~ /^.\s*__initcall\s*\(/) { - WARN("please use device_initcall() instead of __initcall()\n" . $herecurr); + WARN("USE_DEVICE_INITCALL", + "please use device_initcall() instead of __initcall()\n" . $herecurr); } # check for various ops structs, ensure they are const. my $struct_ops = qr{acpi_dock_ops| @@ -2878,7 +3289,8 @@ sub process { wd_ops}x; if ($line !~ /\bconst\b/ && $line =~ /\bstruct\s+($struct_ops)\b/) { - WARN("struct $1 should normally be const\n" . + WARN("CONST_STRUCT", + "struct $1 should normally be const\n" . $herecurr); } @@ -2891,7 +3303,8 @@ sub process { $line !~ /\[[^\]]*\.\.\.[^\]]*NR_CPUS[^\]]*\]/ && $line !~ /\[[^\]]*NR_CPUS[^\]]*\.\.\.[^\]]*\]/) { - WARN("usage of NR_CPUS is often wrong - consider using cpu_possible(), num_possible_cpus(), for_each_possible_cpu(), etc\n" . $herecurr); + WARN("NR_CPUS", + "usage of NR_CPUS is often wrong - consider using cpu_possible(), num_possible_cpus(), for_each_possible_cpu(), etc\n" . $herecurr); } # check for %L{u,d,i} in strings @@ -2900,7 +3313,8 @@ sub process { $string = substr($rawline, $-[1], $+[1] - $-[1]); $string =~ s/%%/__/g; if ($string =~ /(?mutex.\n" . $herecurr); + ERROR("LOCKDEP", + "lockdep_no_validate class is reserved for device->mutex.\n" . $herecurr); } } if ($line =~ /debugfs_create_file.*S_IWUGO/ || $line =~ /DEVICE_ATTR.*S_IWUGO/ ) { - WARN("Exporting world writable files is usually an error. Consider more restrictive permissions.\n" . $herecurr); - } - - # Check for memset with swapped arguments - if ($line =~ /memset.*\,(\ |)(0x|)0(\ |0|)\);/) { - ERROR("memset size is 3rd argument, not the second.\n" . $herecurr); + WARN("EXPORTED_WORLD_WRITABLE", + "Exporting world writable files is usually an error. Consider more restrictive permissions.\n" . $herecurr); } } # If we have no input at all, then there is nothing to report on # so just keep quiet. if ($#rawlines == -1) { - return(0); + exit(0); } # In mailback mode only produce a report in the negative, for # things that appear to be patches. - if ($mailback && ($cnt_error == 0 || !$is_patch)) { - return(0); + if ($mailback && ($clean == 1 || !$is_patch)) { + exit(0); } # This is not a patch, and we are are in 'no-patch' mode so # just keep quiet. if (!$chk_patch && !$is_patch) { - return(0); + exit(0); } if (!$is_patch) { - ERROR("Does not appear to be a unified-diff format patch\n"); + ERROR("NOT_UNIFIED_DIFF", + "Does not appear to be a unified-diff format patch\n"); } if ($is_patch && $chk_signoff && $signoff == 0) { - ERROR("Missing Signed-off-by: line(s)\n"); + ERROR("MISSING_SIGN_OFF", + "Missing Signed-off-by: line(s)\n"); } print report_dump(); - if ($summary && ($cnt_error + $cnt_warn > 0 || $quiet == 0)) { + if ($summary && !($clean == 1 && $quiet == 1)) { print "$filename " if ($summary_file); print "total: $cnt_error errors, $cnt_warn warnings, " . (($check)? "$cnt_chk checks, " : "") . @@ -2979,13 +3394,26 @@ sub process { } } - if ($cnt_error == 0 && $quiet == 0) { + if (keys %ignore_type) { + print "NOTE: Ignored message types:"; + foreach my $ignore (sort keys %ignore_type) { + print " $ignore"; + } + print "\n"; + print "\n" if ($quiet == 0); + } + + if ($clean == 1 && $quiet == 0) { print "$vname has no obvious style problems and is ready for submission.\n" - } elsif (($cnt_error > 0 || $cnt_warn > 0) && $quiet == 0) { - print "$vname has style problems, please review. If any of these errors\n"; - print "are false positives report them to the maintainer, see\n"; - print "CHECKPATCH in MAINTAINERS.\n"; + } + if ($clean == 0 && $quiet == 0) { + print << "EOM"; +$vname has style problems, please review. + +If any of these errors are false positives, please report +them to the maintainer, see CHECKPATCH in MAINTAINERS. +EOM } - return $cnt_error; + return $clean; } diff --git a/build/prepare-commit-msg b/build/prepare-commit-msg index b84609e..ae644eb 100755 --- a/build/prepare-commit-msg +++ b/build/prepare-commit-msg @@ -14,7 +14,7 @@ # means that they can currently be ignored, but are at least visible. CHECKPATCH=build/checkpatch.pl -CHECKPATCH_OPTS="--no-signoff --no-tree --no-tabs" +CHECKPATCH_OPTS="--no-signoff --no-tree" [ -r "$CHECKPATCH" ] || exit 0 # If there are no comments in the commit, it is likely a rebase and