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-rwxr-xr-xscripts/checkpatch.pl48
1 files changed, 39 insertions, 9 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index ba105a848396..88c4f6a5080b 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1145,6 +1145,7 @@ sub process {
1145 # suppression flags 1145 # suppression flags
1146 my %suppress_ifbraces; 1146 my %suppress_ifbraces;
1147 my %suppress_whiletrailers; 1147 my %suppress_whiletrailers;
1148 my %suppress_export;
1148 1149
1149 # Pre-scan the patch sanitizing the lines. 1150 # Pre-scan the patch sanitizing the lines.
1150 # Pre-scan the patch looking for any __setup documentation. 1151 # Pre-scan the patch looking for any __setup documentation.
@@ -1253,6 +1254,7 @@ sub process {
1253 1254
1254 %suppress_ifbraces = (); 1255 %suppress_ifbraces = ();
1255 %suppress_whiletrailers = (); 1256 %suppress_whiletrailers = ();
1257 %suppress_export = ();
1256 next; 1258 next;
1257 1259
1258# track the line number as we move through the hunk, note that 1260# track the line number as we move through the hunk, note that
@@ -1428,13 +1430,22 @@ sub process {
1428 } 1430 }
1429 1431
1430# Check for potential 'bare' types 1432# Check for potential 'bare' types
1431 my ($stat, $cond, $line_nr_next, $remain_next, $off_next); 1433 my ($stat, $cond, $line_nr_next, $remain_next, $off_next,
1434 $realline_next);
1432 if ($realcnt && $line =~ /.\s*\S/) { 1435 if ($realcnt && $line =~ /.\s*\S/) {
1433 ($stat, $cond, $line_nr_next, $remain_next, $off_next) = 1436 ($stat, $cond, $line_nr_next, $remain_next, $off_next) =
1434 ctx_statement_block($linenr, $realcnt, 0); 1437 ctx_statement_block($linenr, $realcnt, 0);
1435 $stat =~ s/\n./\n /g; 1438 $stat =~ s/\n./\n /g;
1436 $cond =~ s/\n./\n /g; 1439 $cond =~ s/\n./\n /g;
1437 1440
1441 # Find the real next line.
1442 $realline_next = $line_nr_next;
1443 if (defined $realline_next &&
1444 (!defined $lines[$realline_next - 1] ||
1445 substr($lines[$realline_next - 1], $off_next) =~ /^\s*$/)) {
1446 $realline_next++;
1447 }
1448
1438 my $s = $stat; 1449 my $s = $stat;
1439 $s =~ s/{.*$//s; 1450 $s =~ s/{.*$//s;
1440 1451
@@ -1695,21 +1706,40 @@ sub process {
1695 $line =~ s@//.*@@; 1706 $line =~ s@//.*@@;
1696 $opline =~ s@//.*@@; 1707 $opline =~ s@//.*@@;
1697 1708
1698#EXPORT_SYMBOL should immediately follow its function closing }. 1709# EXPORT_SYMBOL should immediately follow the thing it is exporting, consider
1699 if (($line =~ /EXPORT_SYMBOL.*\((.*)\)/) || 1710# the whole statement.
1700 ($line =~ /EXPORT_UNUSED_SYMBOL.*\((.*)\)/)) { 1711#print "APW <$lines[$realline_next - 1]>\n";
1712 if (defined $realline_next &&
1713 exists $lines[$realline_next - 1] &&
1714 !defined $suppress_export{$realline_next} &&
1715 ($lines[$realline_next - 1] =~ /EXPORT_SYMBOL.*\((.*)\)/ ||
1716 $lines[$realline_next - 1] =~ /EXPORT_UNUSED_SYMBOL.*\((.*)\)/)) {
1701 my $name = $1; 1717 my $name = $1;
1702 if ($prevline !~ /(?: 1718 if ($stat !~ /(?:
1703 ^.}| 1719 \n.}\s*$|
1704 ^.DEFINE_$Ident\(\Q$name\E\)| 1720 ^.DEFINE_$Ident\(\Q$name\E\)|
1705 ^.DECLARE_$Ident\(\Q$name\E\)| 1721 ^.DECLARE_$Ident\(\Q$name\E\)|
1706 ^.LIST_HEAD\(\Q$name\E\)| 1722 ^.LIST_HEAD\(\Q$name\E\)|
1707 ^.$Type\s*\(\s*\*\s*\Q$name\E\s*\)\s*\(| 1723 ^.(?:$Storage\s+)?$Type\s*\(\s*\*\s*\Q$name\E\s*\)\s*\(|
1708 \b\Q$name\E(?:\s+$Attribute)?\s*(?:;|=|\[) 1724 \b\Q$name\E(?:\s+$Attribute)*\s*(?:;|=|\[|\()
1709 )/x) { 1725 )/x) {
1710 WARN("EXPORT_SYMBOL(foo); should immediately follow its function/variable\n" . $herecurr); 1726#print "FOO A<$lines[$realline_next - 1]> stat<$stat> name<$name>\n";
1727 $suppress_export{$realline_next} = 2;
1728 } else {
1729 $suppress_export{$realline_next} = 1;
1711 } 1730 }
1712 } 1731 }
1732 if (!defined $suppress_export{$linenr} &&
1733 $prevline =~ /^.\s*$/ &&
1734 ($line =~ /EXPORT_SYMBOL.*\((.*)\)/ ||
1735 $line =~ /EXPORT_UNUSED_SYMBOL.*\((.*)\)/)) {
1736#print "FOO B <$lines[$linenr - 1]>\n";
1737 $suppress_export{$linenr} = 2;
1738 }
1739 if (defined $suppress_export{$linenr} &&
1740 $suppress_export{$linenr} == 2) {
1741 WARN("EXPORT_SYMBOL(foo); should immediately follow its function/variable\n" . $herecurr);
1742 }
1713 1743
1714# check for external initialisers. 1744# check for external initialisers.
1715 if ($line =~ /^.$Type\s*$Ident\s*(?:\s+$Modifier)*\s*=\s*(0|NULL|false)\s*;/) { 1745 if ($line =~ /^.$Type\s*$Ident\s*(?:\s+$Modifier)*\s*=\s*(0|NULL|false)\s*;/) {