diff options
Diffstat (limited to 'scripts/checkpatch.pl')
| -rwxr-xr-x | scripts/checkpatch.pl | 84 |
1 files changed, 61 insertions, 23 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index 87bbb8bce9bf..bc4114f1ab30 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -2,7 +2,7 @@ # (c) 2001, Dave Jones. <davej@redhat.com> (the file handling bit) # (c) 2005, Joel Schopp <jschopp@austin.ibm.com> (the ugly bit) # (c) 2007,2008, Andy Whitcroft <apw@uk.ibm.com> (new conditions, test suite) -# (c) 2008, Andy Whitcroft <apw@canonical.com> +# (c) 2008,2009, Andy Whitcroft <apw@canonical.com> # Licensed under the terms of the GNU GPL License version 2 use strict; @@ -10,7 +10,7 @@ use strict; my $P = $0; $P =~ s@.*/@@g; -my $V = '0.29'; +my $V = '0.30'; use Getopt::Long qw(:config no_auto_abbrev); @@ -130,7 +130,10 @@ if ($tree) { my $emitted_corrupt = 0; -our $Ident = qr{[A-Za-z_][A-Za-z\d_]*}; +our $Ident = qr{ + [A-Za-z_][A-Za-z\d_]* + (?:\s*\#\#\s*[A-Za-z_][A-Za-z\d_]*)* + }x; our $Storage = qr{extern|static|asmlinkage}; our $Sparse = qr{ __user| @@ -997,23 +1000,25 @@ sub annotate_values { sub possible { my ($possible, $line) = @_; - - print "CHECK<$possible> ($line)\n" if ($dbg_possible > 2); - if ($possible !~ /(?: + my $notPermitted = qr{(?: ^(?: $Modifier| $Storage| $Type| - DEFINE_\S+| + DEFINE_\S+ + )$| + ^(?: goto| return| case| else| asm|__asm__| do - )$| + )(?:\s|$)| ^(?:typedef|struct|enum)\b - )/x) { + )}x; + warn "CHECK<$possible> ($line)\n" if ($dbg_possible > 2); + if ($possible !~ $notPermitted) { # Check for modifiers. $possible =~ s/\s*$Storage\s*//g; $possible =~ s/\s*$Sparse\s*//g; @@ -1022,8 +1027,10 @@ sub possible { } elsif ($possible =~ /\s/) { $possible =~ s/\s*$Type\s*//g; for my $modifier (split(' ', $possible)) { - warn "MODIFIER: $modifier ($possible) ($line)\n" if ($dbg_possible); - push(@modifierList, $modifier); + if ($modifier !~ $notPermitted) { + warn "MODIFIER: $modifier ($possible) ($line)\n" if ($dbg_possible); + push(@modifierList, $modifier); + } } } else { @@ -1138,6 +1145,7 @@ sub process { # suppression flags my %suppress_ifbraces; my %suppress_whiletrailers; + my %suppress_export; # Pre-scan the patch sanitizing the lines. # Pre-scan the patch looking for any __setup documentation. @@ -1230,7 +1238,6 @@ sub process { $linenr++; my $rawline = $rawlines[$linenr - 1]; - my $hunk_line = ($realcnt != 0); #extract the line range in the file after the patch is applied if ($line=~/^\@\@ -\d+(?:,\d+)? \+(\d+)(,(\d+))? \@\@/) { @@ -1247,6 +1254,7 @@ sub process { %suppress_ifbraces = (); %suppress_whiletrailers = (); + %suppress_export = (); next; # track the line number as we move through the hunk, note that @@ -1270,6 +1278,8 @@ sub process { $realcnt--; } + my $hunk_line = ($realcnt != 0); + #make up the handle for any error we report on this line $prefix = "$filename:$realline: " if ($emacs && $file); $prefix = "$filename:$linenr: " if ($emacs && !$file); @@ -1420,13 +1430,22 @@ sub process { } # Check for potential 'bare' types - my ($stat, $cond, $line_nr_next, $remain_next, $off_next); + my ($stat, $cond, $line_nr_next, $remain_next, $off_next, + $realline_next); if ($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; + # Find the real next line. + $realline_next = $line_nr_next; + if (defined $realline_next && + (!defined $lines[$realline_next - 1] || + substr($lines[$realline_next - 1], $off_next) =~ /^\s*$/)) { + $realline_next++; + } + my $s = $stat; $s =~ s/{.*$//s; @@ -1661,8 +1680,8 @@ sub process { } # check for initialisation to aggregates open brace on the next line - if ($prevline =~ /$Declare\s*$Ident\s*=\s*$/ && - $line =~ /^.\s*{/) { + if ($line =~ /^.\s*{/ && + $prevline =~ /(?:^|[^=])=\s*$/) { ERROR("that open brace { should be on the previous line\n" . $hereprev); } @@ -1687,21 +1706,40 @@ sub process { $line =~ s@//.*@@; $opline =~ s@//.*@@; -#EXPORT_SYMBOL should immediately follow its function closing }. - if (($line =~ /EXPORT_SYMBOL.*\((.*)\)/) || - ($line =~ /EXPORT_UNUSED_SYMBOL.*\((.*)\)/)) { +# EXPORT_SYMBOL should immediately follow the thing it is exporting, consider +# the whole statement. +#print "APW <$lines[$realline_next - 1]>\n"; + if (defined $realline_next && + exists $lines[$realline_next - 1] && + !defined $suppress_export{$realline_next} && + ($lines[$realline_next - 1] =~ /EXPORT_SYMBOL.*\((.*)\)/ || + $lines[$realline_next - 1] =~ /EXPORT_UNUSED_SYMBOL.*\((.*)\)/)) { my $name = $1; - if ($prevline !~ /(?: - ^.}| + if ($stat !~ /(?: + \n.}\s*$| ^.DEFINE_$Ident\(\Q$name\E\)| ^.DECLARE_$Ident\(\Q$name\E\)| ^.LIST_HEAD\(\Q$name\E\)| - ^.$Type\s*\(\s*\*\s*\Q$name\E\s*\)\s*\(| - \b\Q$name\E(?:\s+$Attribute)?\s*(?:;|=|\[) + ^.(?:$Storage\s+)?$Type\s*\(\s*\*\s*\Q$name\E\s*\)\s*\(| + \b\Q$name\E(?:\s+$Attribute)*\s*(?:;|=|\[|\() )/x) { - WARN("EXPORT_SYMBOL(foo); should immediately follow its function/variable\n" . $herecurr); +#print "FOO A<$lines[$realline_next - 1]> stat<$stat> name<$name>\n"; + $suppress_export{$realline_next} = 2; + } else { + $suppress_export{$realline_next} = 1; } } + if (!defined $suppress_export{$linenr} && + $prevline =~ /^.\s*$/ && + ($line =~ /EXPORT_SYMBOL.*\((.*)\)/ || + $line =~ /EXPORT_UNUSED_SYMBOL.*\((.*)\)/)) { +#print "FOO B <$lines[$linenr - 1]>\n"; + $suppress_export{$linenr} = 2; + } + if (defined $suppress_export{$linenr} && + $suppress_export{$linenr} == 2) { + WARN("EXPORT_SYMBOL(foo); should immediately follow its function/variable\n" . $herecurr); + } # check for external initialisers. if ($line =~ /^.$Type\s*$Ident\s*(?:\s+$Modifier)*\s*=\s*(0|NULL|false)\s*;/) { |