update checkpatch.pl to version 0.15
This version brings a number of minor fixes updating the type detector and
the unary tracker. It also brings a few small fixes for false positives.
It also reverts the --file warning. Of note:
- limit CVS checks to added lines
- improved type detections
- fixes to the unary tracker
Andy Whitcroft (13):
Version: 0.15
EXPORT_SYMBOL checks need to accept array variables
export checks must match DECLARE_foo and LIST_HEAD
possible types: cleanup debugging missing line
values: track values through preprocessor conditional paths
typeof is actually a type
possible types: detect definitions which cross lines
values: include line numbers on value debug information
values: ensure we find correctly record pending brackets
values: simplify the brace history stack
CVS keyword checks should only apply to added lines
loosen spacing for comments
allow braces for single statement blocks with multiline conditionals
Harvey Harrison (1):
checkpatch: remove fastcall
Ingo Molnar (1):
checkpatch.pl: revert wrong --file message
Uwe Kleine-Koenig (1):
fix typo "goot" -> "good"
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Cc: Joel Schopp <jschopp@austin.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andy Whitcroft
Linus Torvalds
parent
b6abdb0e6c
commit
cf655043d4
|
|
@ -9,7 +9,7 @@ use strict;
|
|||
my $P = $0;
|
||||
$P =~ s@.*/@@g;
|
||||
|
||||
my $V = '0.14';
|
||||
my $V = '0.15';
|
||||
|
||||
use Getopt::Long qw(:config no_auto_abbrev);
|
||||
|
||||
|
|
@ -105,8 +105,7 @@ our $Sparse = qr{
|
|||
__iomem|
|
||||
__must_check|
|
||||
__init_refok|
|
||||
__kprobes|
|
||||
fastcall
|
||||
__kprobes
|
||||
}x;
|
||||
our $Attribute = qr{
|
||||
const|
|
||||
|
|
@ -158,7 +157,10 @@ sub build_types {
|
|||
\b
|
||||
(?:const\s+)?
|
||||
(?:unsigned\s+)?
|
||||
$all
|
||||
(?:
|
||||
$all|
|
||||
(?:typeof|__typeof__)\s*\(\s*\**\s*$Ident\s*\)
|
||||
)
|
||||
(?:\s+$Sparse|\s+const)*
|
||||
\b
|
||||
}x;
|
||||
|
|
@ -362,6 +364,7 @@ sub ctx_statement_block {
|
|||
|
||||
my $type = '';
|
||||
my $level = 0;
|
||||
my $p;
|
||||
my $c;
|
||||
my $len = 0;
|
||||
|
||||
|
|
@ -386,6 +389,7 @@ sub ctx_statement_block {
|
|||
last;
|
||||
}
|
||||
}
|
||||
$p = $c;
|
||||
$c = substr($blk, $off, 1);
|
||||
$remainder = substr($blk, $off);
|
||||
|
||||
|
|
@ -397,8 +401,9 @@ sub ctx_statement_block {
|
|||
}
|
||||
|
||||
# An else is really a conditional as long as its not else if
|
||||
if ($level == 0 && $remainder =~ /(\s+else)(?:\s|{)/ &&
|
||||
$remainder !~ /\s+else\s+if\b/) {
|
||||
if ($level == 0 && (!defined($p) || $p =~ /(?:\s|\})/) &&
|
||||
$remainder =~ /(else)(?:\s|{)/ &&
|
||||
$remainder !~ /else\s+if\b/) {
|
||||
$coff = $off + length($1);
|
||||
}
|
||||
|
||||
|
|
@ -445,21 +450,73 @@ sub ctx_statement_block {
|
|||
$line, $remain + 1, $off - $loff + 1, $level);
|
||||
}
|
||||
|
||||
sub statement_lines {
|
||||
my ($stmt) = @_;
|
||||
|
||||
# Strip the diff line prefixes and rip blank lines at start and end.
|
||||
$stmt =~ s/(^|\n)./$1/g;
|
||||
$stmt =~ s/^\s*//;
|
||||
$stmt =~ s/\s*$//;
|
||||
|
||||
my @stmt_lines = ($stmt =~ /\n/g);
|
||||
|
||||
return $#stmt_lines + 2;
|
||||
}
|
||||
|
||||
sub statement_rawlines {
|
||||
my ($stmt) = @_;
|
||||
|
||||
my @stmt_lines = ($stmt =~ /\n/g);
|
||||
|
||||
return $#stmt_lines + 2;
|
||||
}
|
||||
|
||||
sub statement_block_size {
|
||||
my ($stmt) = @_;
|
||||
|
||||
$stmt =~ s/(^|\n)./$1/g;
|
||||
$stmt =~ s/^\s*{//;
|
||||
$stmt =~ s/}\s*$//;
|
||||
$stmt =~ s/^\s*//;
|
||||
$stmt =~ s/\s*$//;
|
||||
|
||||
my @stmt_lines = ($stmt =~ /\n/g);
|
||||
my @stmt_statements = ($stmt =~ /;/g);
|
||||
|
||||
my $stmt_lines = $#stmt_lines + 2;
|
||||
my $stmt_statements = $#stmt_statements + 1;
|
||||
|
||||
if ($stmt_lines > $stmt_statements) {
|
||||
return $stmt_lines;
|
||||
} else {
|
||||
return $stmt_statements;
|
||||
}
|
||||
}
|
||||
|
||||
sub ctx_statement_full {
|
||||
my ($linenr, $remain, $off) = @_;
|
||||
my ($statement, $condition, $level);
|
||||
|
||||
my (@chunks);
|
||||
|
||||
# Grab the first conditional/block pair.
|
||||
($statement, $condition, $linenr, $remain, $off, $level) =
|
||||
ctx_statement_block($linenr, $remain, $off);
|
||||
#print "F: c<$condition> s<$statement>\n";
|
||||
push(@chunks, [ $condition, $statement ]);
|
||||
if (!($remain > 0 && $condition =~ /^\s*(?:\n[+-])?\s*(?:if|else|do)\b/s)) {
|
||||
return ($level, $linenr, @chunks);
|
||||
}
|
||||
|
||||
# Pull in the following conditional/block pairs and see if they
|
||||
# could continue the statement.
|
||||
for (;;) {
|
||||
push(@chunks, [ $condition, $statement ]);
|
||||
last if (!($remain > 0 && $condition =~ /^.\s*(?:if|else|do)/));
|
||||
($statement, $condition, $linenr, $remain, $off, $level) =
|
||||
ctx_statement_block($linenr, $remain, $off);
|
||||
#print "C: c<$condition> s<$statement>\n";
|
||||
#print "C: c<$condition> s<$statement> remain<$remain>\n";
|
||||
last if (!($remain > 0 && $condition =~ /^\s*(?:\n[+-])?\s*(?:else|do)\b/s));
|
||||
#print "C: push\n";
|
||||
push(@chunks, [ $condition, $statement ]);
|
||||
}
|
||||
|
||||
return ($level, $linenr, @chunks);
|
||||
|
|
@ -593,13 +650,13 @@ sub cat_vet {
|
|||
}
|
||||
|
||||
my $av_preprocessor = 0;
|
||||
my $av_paren = 0;
|
||||
my $av_pending;
|
||||
my @av_paren_type;
|
||||
|
||||
sub annotate_reset {
|
||||
$av_preprocessor = 0;
|
||||
$av_paren = 0;
|
||||
@av_paren_type = ();
|
||||
$av_pending = '_';
|
||||
@av_paren_type = ('E');
|
||||
}
|
||||
|
||||
sub annotate_values {
|
||||
|
|
@ -611,12 +668,13 @@ sub annotate_values {
|
|||
print "$stream\n" if ($dbg_values > 1);
|
||||
|
||||
while (length($cur)) {
|
||||
print " <$type> " if ($dbg_values > 1);
|
||||
print " <" . join('', @av_paren_type) .
|
||||
"> <$type> " if ($dbg_values > 1);
|
||||
if ($cur =~ /^(\s+)/o) {
|
||||
print "WS($1)\n" if ($dbg_values > 1);
|
||||
if ($1 =~ /\n/ && $av_preprocessor) {
|
||||
$type = pop(@av_paren_type);
|
||||
$av_preprocessor = 0;
|
||||
$type = 'N';
|
||||
}
|
||||
|
||||
} elsif ($cur =~ /^($Type)/) {
|
||||
|
|
@ -626,11 +684,33 @@ sub annotate_values {
|
|||
} elsif ($cur =~ /^(#\s*define\s*$Ident)(\(?)/o) {
|
||||
print "DEFINE($1)\n" if ($dbg_values > 1);
|
||||
$av_preprocessor = 1;
|
||||
$av_paren_type[$av_paren] = 'N';
|
||||
$av_pending = 'N';
|
||||
|
||||
} elsif ($cur =~ /^(#\s*(?:ifdef|ifndef|if|else|elif|endif))/o) {
|
||||
print "PRE($1)\n" if ($dbg_values > 1);
|
||||
} elsif ($cur =~ /^(#\s*(?:ifdef|ifndef|if))/o) {
|
||||
print "PRE_START($1)\n" if ($dbg_values > 1);
|
||||
$av_preprocessor = 1;
|
||||
|
||||
push(@av_paren_type, $type);
|
||||
push(@av_paren_type, $type);
|
||||
$type = 'N';
|
||||
|
||||
} elsif ($cur =~ /^(#\s*(?:else|elif))/o) {
|
||||
print "PRE_RESTART($1)\n" if ($dbg_values > 1);
|
||||
$av_preprocessor = 1;
|
||||
|
||||
push(@av_paren_type, $av_paren_type[$#av_paren_type]);
|
||||
|
||||
$type = 'N';
|
||||
|
||||
} elsif ($cur =~ /^(#\s*(?:endif))/o) {
|
||||
print "PRE_END($1)\n" if ($dbg_values > 1);
|
||||
|
||||
$av_preprocessor = 1;
|
||||
|
||||
# Assume all arms of the conditional end as this
|
||||
# one does, and continue as if the #endif was not here.
|
||||
pop(@av_paren_type);
|
||||
push(@av_paren_type, $type);
|
||||
$type = 'N';
|
||||
|
||||
} elsif ($cur =~ /^(\\\n)/o) {
|
||||
|
|
@ -639,13 +719,13 @@ sub annotate_values {
|
|||
} elsif ($cur =~ /^(sizeof)\s*(\()?/o) {
|
||||
print "SIZEOF($1)\n" if ($dbg_values > 1);
|
||||
if (defined $2) {
|
||||
$av_paren_type[$av_paren] = 'V';
|
||||
$av_pending = 'V';
|
||||
}
|
||||
$type = 'N';
|
||||
|
||||
} elsif ($cur =~ /^(if|while|typeof|__typeof__|for)\b/o) {
|
||||
print "COND($1)\n" if ($dbg_values > 1);
|
||||
$av_paren_type[$av_paren] = 'N';
|
||||
$av_pending = 'N';
|
||||
$type = 'N';
|
||||
|
||||
} elsif ($cur =~/^(return|case|else)/o) {
|
||||
|
|
@ -654,14 +734,14 @@ sub annotate_values {
|
|||
|
||||
} elsif ($cur =~ /^(\()/o) {
|
||||
print "PAREN('$1')\n" if ($dbg_values > 1);
|
||||
$av_paren++;
|
||||
push(@av_paren_type, $av_pending);
|
||||
$av_pending = '_';
|
||||
$type = 'N';
|
||||
|
||||
} elsif ($cur =~ /^(\))/o) {
|
||||
$av_paren-- if ($av_paren > 0);
|
||||
if (defined $av_paren_type[$av_paren]) {
|
||||
$type = $av_paren_type[$av_paren];
|
||||
undef $av_paren_type[$av_paren];
|
||||
my $new_type = pop(@av_paren_type);
|
||||
if ($new_type ne '_') {
|
||||
$type = $new_type;
|
||||
print "PAREN('$1') -> $type\n"
|
||||
if ($dbg_values > 1);
|
||||
} else {
|
||||
|
|
@ -670,7 +750,7 @@ sub annotate_values {
|
|||
|
||||
} elsif ($cur =~ /^($Ident)\(/o) {
|
||||
print "FUNC($1)\n" if ($dbg_values > 1);
|
||||
$av_paren_type[$av_paren] = 'V';
|
||||
$av_pending = 'V';
|
||||
|
||||
} elsif ($cur =~ /^($Ident|$Constant)/o) {
|
||||
print "IDENT($1)\n" if ($dbg_values > 1);
|
||||
|
|
@ -680,11 +760,11 @@ sub annotate_values {
|
|||
print "ASSIGN($1)\n" if ($dbg_values > 1);
|
||||
$type = 'N';
|
||||
|
||||
} elsif ($cur =~/^(;)/) {
|
||||
} elsif ($cur =~/^(;|{|})/) {
|
||||
print "END($1)\n" if ($dbg_values > 1);
|
||||
$type = 'E';
|
||||
|
||||
} elsif ($cur =~ /^(;|{|}|\?|:|\[)/o) {
|
||||
} elsif ($cur =~ /^(;|\?|:|\[)/o) {
|
||||
print "CLOSE($1)\n" if ($dbg_values > 1);
|
||||
$type = 'N';
|
||||
|
||||
|
|
@ -988,7 +1068,7 @@ sub process {
|
|||
}
|
||||
|
||||
# check for RCS/CVS revision markers
|
||||
if ($rawline =~ /\$(Revision|Log|Id)(?:\$|)/) {
|
||||
if ($rawline =~ /^\+.*\$(Revision|Log|Id)(?:\$|)/) {
|
||||
WARN("CVS style keyword markers, these will _not_ be updated\n". $herecurr);
|
||||
}
|
||||
|
||||
|
|
@ -999,41 +1079,44 @@ sub process {
|
|||
|
||||
# Check for potential 'bare' types
|
||||
if ($realcnt) {
|
||||
my ($s, $c) = ctx_statement_block($linenr, $realcnt, 0);
|
||||
$s =~ s/\n./ /g;
|
||||
$s =~ s/{.*$//;
|
||||
|
||||
# Ignore goto labels.
|
||||
if ($line =~ /$Ident:\*$/) {
|
||||
if ($s =~ /$Ident:\*$/) {
|
||||
|
||||
# Ignore functions being called
|
||||
} elsif ($line =~ /^.\s*$Ident\s*\(/) {
|
||||
} elsif ($s =~ /^.\s*$Ident\s*\(/) {
|
||||
|
||||
# definitions in global scope can only start with types
|
||||
} elsif ($line =~ /^.(?:$Storage\s+)?(?:$Inline\s+)?(?:const\s+)?($Ident)\b/) {
|
||||
possible($1, $line);
|
||||
} elsif ($s =~ /^.(?:$Storage\s+)?(?:$Inline\s+)?(?:const\s+)?($Ident)\b/) {
|
||||
possible($1, $s);
|
||||
|
||||
# declarations always start with types
|
||||
} elsif ($prev_values eq 'E' && $line =~ /^.\s*(?:$Storage\s+)?(?:const\s+)?($Ident)\b(:?\s+$Sparse)?\s*\**\s*$Ident\s*(?:;|=|,)/) {
|
||||
possible($1);
|
||||
} elsif ($prev_values eq 'E' && $s =~ /^.\s*(?:$Storage\s+)?(?:const\s+)?($Ident)\b(:?\s+$Sparse)?\s*\**\s*$Ident\s*(?:;|=|,)/) {
|
||||
possible($1, $s);
|
||||
}
|
||||
|
||||
# any (foo ... *) is a pointer cast, and foo is a type
|
||||
while ($line =~ /\(($Ident)(?:\s+$Sparse)*\s*\*+\s*\)/g) {
|
||||
possible($1, $line);
|
||||
while ($s =~ /\(($Ident)(?:\s+$Sparse)*\s*\*+\s*\)/g) {
|
||||
possible($1, $s);
|
||||
}
|
||||
|
||||
# Check for any sort of function declaration.
|
||||
# int foo(something bar, other baz);
|
||||
# void (*store_gdt)(x86_descr_ptr *);
|
||||
if ($prev_values eq 'E' && $line =~ /^(.(?:typedef\s*)?(?:(?:$Storage|$Inline)\s*)*\s*$Type\s*(?:\b$Ident|\(\*\s*$Ident\))\s*)\(/) {
|
||||
if ($prev_values eq 'E' && $s =~ /^(.(?:typedef\s*)?(?:(?:$Storage|$Inline)\s*)*\s*$Type\s*(?:\b$Ident|\(\*\s*$Ident\))\s*)\(/) {
|
||||
my ($name_len) = length($1);
|
||||
my ($level, @ctx) = ctx_statement_level($linenr, $realcnt, $name_len);
|
||||
my $ctx = join("\n", @ctx);
|
||||
|
||||
$ctx =~ s/\n.//;
|
||||
my $ctx = $s;
|
||||
substr($ctx, 0, $name_len + 1) = '';
|
||||
$ctx =~ s/\)[^\)]*$//;
|
||||
|
||||
for my $arg (split(/\s*,\s*/, $ctx)) {
|
||||
if ($arg =~ /^(?:const\s+)?($Ident)(?:\s+$Sparse)*\s*\**\s*(:?\b$Ident)?$/ || $arg =~ /^($Ident)$/) {
|
||||
|
||||
possible($1, $line);
|
||||
possible($1, $s);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -1100,8 +1183,8 @@ sub process {
|
|||
$curr_values = $prev_values . $curr_values;
|
||||
if ($dbg_values) {
|
||||
my $outline = $opline; $outline =~ s/\t/ /g;
|
||||
warn "--> .$outline\n";
|
||||
warn "--> $curr_values\n";
|
||||
print "$linenr > .$outline\n";
|
||||
print "$linenr > $curr_values\n";
|
||||
}
|
||||
$prev_values = substr($curr_values, -1);
|
||||
|
||||
|
|
@ -1148,7 +1231,9 @@ sub process {
|
|||
if (($prevline !~ /^}/) &&
|
||||
($prevline !~ /^\+}/) &&
|
||||
($prevline !~ /^ }/) &&
|
||||
($prevline !~ /\b\Q$name\E(?:\s+$Attribute)?\s*(?:;|=)/)) {
|
||||
($prevline !~ /^.DECLARE_$Ident\(\Q$name\E\)/) &&
|
||||
($prevline !~ /^.LIST_HEAD\(\Q$name\E\)/) &&
|
||||
($prevline !~ /\b\Q$name\E(?:\s+$Attribute)?\s*(?:;|=|\[)/)) {
|
||||
WARN("EXPORT_SYMBOL(foo); should immediately follow its function/variable\n" . $herecurr);
|
||||
}
|
||||
}
|
||||
|
|
@ -1266,7 +1351,7 @@ sub process {
|
|||
=>|->|<<|>>|<|>|=|!|~|
|
||||
&&|\|\||,|\^|\+\+|--|&|\||\+|-|\*|\/|%
|
||||
}x;
|
||||
my @elements = split(/($;+|$ops|;)/, $opline);
|
||||
my @elements = split(/($ops|;)/, $opline);
|
||||
my $off = 0;
|
||||
|
||||
my $blank = copy_spacing($opline);
|
||||
|
|
@ -1277,6 +1362,7 @@ sub process {
|
|||
my $a = '';
|
||||
$a = 'V' if ($elements[$n] ne '');
|
||||
$a = 'W' if ($elements[$n] =~ /\s$/);
|
||||
$a = 'C' if ($elements[$n] =~ /$;$/);
|
||||
$a = 'B' if ($elements[$n] =~ /(\[|\()$/);
|
||||
$a = 'O' if ($elements[$n] eq '');
|
||||
$a = 'E' if ($elements[$n] eq '' && $n == 0);
|
||||
|
|
@ -1287,6 +1373,7 @@ sub process {
|
|||
if (defined $elements[$n + 2]) {
|
||||
$c = 'V' if ($elements[$n + 2] ne '');
|
||||
$c = 'W' if ($elements[$n + 2] =~ /^\s/);
|
||||
$c = 'C' if ($elements[$n + 2] =~ /^$;/);
|
||||
$c = 'B' if ($elements[$n + 2] =~ /^(\)|\]|;)/);
|
||||
$c = 'O' if ($elements[$n + 2] eq '');
|
||||
$c = 'E' if ($elements[$n + 2] =~ /\s*\\$/);
|
||||
|
|
@ -1330,13 +1417,13 @@ sub process {
|
|||
if ($op_type ne 'V' &&
|
||||
$ca =~ /\s$/ && $cc =~ /^\s*,/) {
|
||||
|
||||
# Ignore comments
|
||||
} elsif ($op =~ /^$;+$/) {
|
||||
# # Ignore comments
|
||||
# } elsif ($op =~ /^$;+$/) {
|
||||
|
||||
# ; should have either the end of line or a space or \ after it
|
||||
} elsif ($op eq ';') {
|
||||
if ($ctx !~ /.x[WEB]/ && $cc !~ /^\\/ &&
|
||||
$cc !~ /^;/) {
|
||||
if ($ctx !~ /.x[WEBC]/ &&
|
||||
$cc !~ /^\\/ && $cc !~ /^;/) {
|
||||
ERROR("need space after that '$op' $at\n" . $hereptr);
|
||||
}
|
||||
|
||||
|
|
@ -1351,7 +1438,7 @@ sub process {
|
|||
|
||||
# , must have a space on the right.
|
||||
} elsif ($op eq ',') {
|
||||
if ($ctx !~ /.xW|.xE/ && $cc !~ /^}/) {
|
||||
if ($ctx !~ /.x[WEC]/ && $cc !~ /^}/) {
|
||||
ERROR("need space after that '$op' $at\n" . $hereptr);
|
||||
}
|
||||
|
||||
|
|
@ -1364,7 +1451,7 @@ sub process {
|
|||
# unary operator, or a cast
|
||||
} elsif ($op eq '!' || $op eq '~' ||
|
||||
($is_unary && ($op eq '*' || $op eq '-' || $op eq '&'))) {
|
||||
if ($ctx !~ /[WEB]x./ && $ca !~ /(?:\)|!|~|\*|-|\&|\||\+\+|\-\-|\{)$/) {
|
||||
if ($ctx !~ /[WEBC]x./ && $ca !~ /(?:\)|!|~|\*|-|\&|\||\+\+|\-\-|\{)$/) {
|
||||
ERROR("need space before that '$op' $at\n" . $hereptr);
|
||||
}
|
||||
if ($ctx =~ /.xW/) {
|
||||
|
|
@ -1373,7 +1460,7 @@ sub process {
|
|||
|
||||
# unary ++ and unary -- are allowed no space on one side.
|
||||
} elsif ($op eq '++' or $op eq '--') {
|
||||
if ($ctx !~ /[WOB]x[^W]/ && $ctx !~ /[^W]x[WOBE]/) {
|
||||
if ($ctx !~ /[WOBC]x[^W]/ && $ctx !~ /[^W]x[WOBEC]/) {
|
||||
ERROR("need space one side of that '$op' $at\n" . $hereptr);
|
||||
}
|
||||
if ($ctx =~ /WxB/ || ($ctx =~ /Wx./ && $cc =~ /^;/)) {
|
||||
|
|
@ -1387,13 +1474,13 @@ sub process {
|
|||
$op eq '*' or $op eq '/' or
|
||||
$op eq '%')
|
||||
{
|
||||
if ($ctx !~ /VxV|WxW|VxE|WxE|VxO/) {
|
||||
if ($ctx !~ /VxV|WxW|VxE|WxE|VxO|Cx.|.xC/) {
|
||||
ERROR("need consistent spacing around '$op' $at\n" .
|
||||
$hereptr);
|
||||
}
|
||||
|
||||
# All the others need spaces both sides.
|
||||
} elsif ($ctx !~ /[EW]x[WE]/) {
|
||||
} elsif ($ctx !~ /[EWC]x[CWE]/) {
|
||||
# Ignore email addresses <foo@bar>
|
||||
if (!($op eq '<' && $cb =~ /$;\S+\@\S+>/) &&
|
||||
!($op eq '>' && $cb =~ /<\S+\@\S+$;/)) {
|
||||
|
|
@ -1551,7 +1638,7 @@ sub process {
|
|||
|
||||
# multi-statement macros should be enclosed in a do while loop, grab the
|
||||
# first statement and ensure its the whole macro if its not enclosed
|
||||
# in a known goot container
|
||||
# in a known good container
|
||||
if ($prevline =~ /\#define.*\\/ &&
|
||||
$prevline !~/(?:do\s+{|\(\{|\{)/ &&
|
||||
$line !~ /(?:do\s+{|\(\{|\{)/ &&
|
||||
|
|
@ -1599,84 +1686,95 @@ sub process {
|
|||
# check for redundant bracing round if etc
|
||||
if ($line =~ /(^.*)\bif\b/ && $1 !~ /else\s*$/) {
|
||||
my ($level, $endln, @chunks) =
|
||||
ctx_statement_full($linenr, $realcnt, 0);
|
||||
ctx_statement_full($linenr, $realcnt, 1);
|
||||
#print "chunks<$#chunks> linenr<$linenr> endln<$endln> level<$level>\n";
|
||||
if ($#chunks > 1 && $level == 0) {
|
||||
#print "APW: <<$chunks[1][0]>><<$chunks[1][1]>>\n";
|
||||
if ($#chunks > 0 && $level == 0) {
|
||||
my $allowed = 0;
|
||||
my $seen = 0;
|
||||
my $herectx = $here . "\n";;
|
||||
my $ln = $linenr - 1;
|
||||
for my $chunk (@chunks) {
|
||||
my ($cond, $block) = @{$chunk};
|
||||
|
||||
$herectx .= "$rawlines[$ln]\n[...]\n";
|
||||
$ln += statement_rawlines($block) - 1;
|
||||
|
||||
substr($block, 0, length($cond)) = '';
|
||||
|
||||
$seen++ if ($block =~ /^\s*{/);
|
||||
|
||||
$block =~ s/(^|\n)./$1/g;
|
||||
$block =~ s/^\s*{//;
|
||||
$block =~ s/}\s*$//;
|
||||
$block =~ s/^\s*//;
|
||||
$block =~ s/\s*$//;
|
||||
|
||||
my @lines = ($block =~ /\n/g);
|
||||
my @statements = ($block =~ /;/g);
|
||||
|
||||
#print "cond<$cond> block<$block> lines<" . scalar(@lines) . "> statements<" . scalar(@statements) . "> seen<$seen> allowed<$allowed>\n";
|
||||
if (scalar(@lines) != 0) {
|
||||
#print "cond<$cond> block<$block> allowed<$allowed>\n";
|
||||
if (statement_lines($cond) > 1) {
|
||||
#print "APW: ALLOWED: cond<$cond>\n";
|
||||
$allowed = 1;
|
||||
}
|
||||
if ($block =~/\b(?:if|for|while)\b/) {
|
||||
#print "APW: ALLOWED: block<$block>\n";
|
||||
$allowed = 1;
|
||||
}
|
||||
if (scalar(@statements) > 1) {
|
||||
if (statement_block_size($block) > 1) {
|
||||
#print "APW: ALLOWED: lines block<$block>\n";
|
||||
$allowed = 1;
|
||||
}
|
||||
}
|
||||
if ($seen && !$allowed) {
|
||||
WARN("braces {} are not necessary for any arm of this statement\n" . $herecurr);
|
||||
$suppress_ifbraces = $endln;
|
||||
WARN("braces {} are not necessary for any arm of this statement\n" . $herectx);
|
||||
}
|
||||
# Either way we have looked over this whole
|
||||
# statement and said what needs to be said.
|
||||
$suppress_ifbraces = $endln;
|
||||
}
|
||||
}
|
||||
if ($linenr > $suppress_ifbraces &&
|
||||
$line =~ /\b(if|while|for|else)\b/) {
|
||||
# Locate the end of the opening statement.
|
||||
my @control = ctx_statement($linenr, $realcnt, 0);
|
||||
my $nr = $linenr + (scalar(@control) - 1);
|
||||
my $cnt = $realcnt - (scalar(@control) - 1);
|
||||
my ($level, $endln, @chunks) =
|
||||
ctx_statement_full($linenr, $realcnt, $-[0]);
|
||||
|
||||
my $off = $realcnt - $cnt;
|
||||
#print "$off: line<$line>end<" . $lines[$nr - 1] . ">\n";
|
||||
my $allowed = 0;
|
||||
|
||||
# If this is is a braced statement group check it
|
||||
if ($lines[$nr - 1] =~ /{\s*$/) {
|
||||
my ($lvl, @block) = ctx_block_level($nr, $cnt);
|
||||
|
||||
my $stmt = join("\n", @block);
|
||||
# Drop the diff line leader.
|
||||
$stmt =~ s/\n./\n/g;
|
||||
# Drop the code outside the block.
|
||||
$stmt =~ s/(^[^{]*){\s*//;
|
||||
my $before = $1;
|
||||
$stmt =~ s/\s*}([^}]*$)//;
|
||||
my $after = $1;
|
||||
|
||||
#print "block<" . join(' ', @block) . "><" . scalar(@block) . ">\n";
|
||||
#print "before<$before> stmt<$stmt> after<$after>\n\n";
|
||||
|
||||
# Count the newlines, if there is only one
|
||||
# then the block should not have {}'s.
|
||||
my @lines = ($stmt =~ /\n/g);
|
||||
my @statements = ($stmt =~ /;/g);
|
||||
#print "lines<" . scalar(@lines) . ">\n";
|
||||
#print "statements<" . scalar(@statements) . ">\n";
|
||||
if ($lvl == 0 && scalar(@lines) == 0 &&
|
||||
scalar(@statements) < 2 &&
|
||||
$stmt !~ /{/ && $stmt !~ /\bif\b/ &&
|
||||
$before !~ /}/ && $after !~ /{/) {
|
||||
my $herectx = "$here\n" . join("\n", @control, @block[1 .. $#block]) . "\n";
|
||||
shift(@block);
|
||||
WARN("braces {} are not necessary for single statement blocks\n" . $herectx);
|
||||
# Check the pre-context.
|
||||
if (substr($line, 0, $-[0]) =~ /(\}\s*)$/) {
|
||||
#print "APW: ALLOWED: pre<$1>\n";
|
||||
$allowed = 1;
|
||||
}
|
||||
# Check the condition.
|
||||
my ($cond, $block) = @{$chunks[0]};
|
||||
if (defined $cond) {
|
||||
substr($block, 0, length($cond)) = '';
|
||||
}
|
||||
if (statement_lines($cond) > 1) {
|
||||
#print "APW: ALLOWED: cond<$cond>\n";
|
||||
$allowed = 1;
|
||||
}
|
||||
if ($block =~/\b(?:if|for|while)\b/) {
|
||||
#print "APW: ALLOWED: block<$block>\n";
|
||||
$allowed = 1;
|
||||
}
|
||||
if (statement_block_size($block) > 1) {
|
||||
#print "APW: ALLOWED: lines block<$block>\n";
|
||||
$allowed = 1;
|
||||
}
|
||||
# Check the post-context.
|
||||
if (defined $chunks[1]) {
|
||||
my ($cond, $block) = @{$chunks[1]};
|
||||
if (defined $cond) {
|
||||
substr($block, 0, length($cond)) = '';
|
||||
}
|
||||
if ($block =~ /^\s*\{/) {
|
||||
#print "APW: ALLOWED: chunk-1 block<$block>\n";
|
||||
$allowed = 1;
|
||||
}
|
||||
}
|
||||
if ($level == 0 && $block =~ /^\s*\{/ && !$allowed) {
|
||||
my $herectx = $here . "\n";;
|
||||
my $end = $linenr + statement_rawlines($block) - 1;
|
||||
|
||||
for (my $ln = $linenr - 1; $ln < $end; $ln++) {
|
||||
$herectx .= $rawlines[$ln] . "\n";;
|
||||
}
|
||||
|
||||
WARN("braces {} are not necessary for single statement blocks\n" . $herectx);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -1828,15 +1926,6 @@ sub process {
|
|||
print "are false positives report them to the maintainer, see\n";
|
||||
print "CHECKPATCH in MAINTAINERS.\n";
|
||||
}
|
||||
print <<EOL if ($file == 1 && $quiet == 0);
|
||||
|
||||
WARNING: Using --file mode. Please do not send patches to linux-kernel
|
||||
that change whole existing files if you did not significantly change most
|
||||
of the the file for other reasons anyways or just wrote the file newly
|
||||
from scratch. Pure code style patches have a significant cost in a
|
||||
quickly changing code base like Linux because they cause rejects
|
||||
with other changes.
|
||||
EOL
|
||||
|
||||
return $clean;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user