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checkpatch: handle C99 comments correctly (performance issue)

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This fixes the sanitation process in checkpatch.pl so that it blocks out
the text after a C99 style comment the same way it does with block style
comments.  This prevents the text from getting processed as regular code.

Signed-off-by: Daniel Walker <dwalker@fifo99.com>
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Daniel Walker 2009-09-21 17:04:35 -07:00 committed by Linus Torvalds
parent 463f286485
commit 113f04a836
1 changed files with 13 additions and 0 deletions
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13
scripts/checkpatch.pl
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@ -356,6 +356,13 @@ sub sanitise_line {
$off++; $off++;
next; next;
} }
if ($sanitise_quote eq '' && substr($line, $off, 2) eq '//') {
$sanitise_quote = '//';
substr($res, $off, 2, $sanitise_quote);
$off++;
next;
}
# A \ in a string means ignore the next character. # A \ in a string means ignore the next character.
if (($sanitise_quote eq "'" || $sanitise_quote eq '"') && if (($sanitise_quote eq "'" || $sanitise_quote eq '"') &&
@ -379,6 +386,8 @@ sub sanitise_line {
#print "c<$c> SQ<$sanitise_quote>\n"; #print "c<$c> SQ<$sanitise_quote>\n";
if ($off != 0 && $sanitise_quote eq '*/' && $c ne "\t") { if ($off != 0 && $sanitise_quote eq '*/' && $c ne "\t") {
substr($res, $off, 1, $;); substr($res, $off, 1, $;);
} elsif ($off != 0 && $sanitise_quote eq '//' && $c ne "\t") {
substr($res, $off, 1, $;);
} elsif ($off != 0 && $sanitise_quote && $c ne "\t") { } elsif ($off != 0 && $sanitise_quote && $c ne "\t") {
substr($res, $off, 1, 'X'); substr($res, $off, 1, 'X');
} else { } else {
@ -386,6 +395,10 @@ sub sanitise_line {
} }
} }
if ($sanitise_quote eq '//') {
$sanitise_quote = '';
}
# The pathname on a #include may be surrounded by '<' and '>'. # The pathname on a #include may be surrounded by '<' and '>'.
if ($res =~ /^.\s*\#\s*include\s+\<(.*)\>/) { if ($res =~ /^.\s*\#\s*include\s+\<(.*)\>/) {
my $clean = 'X' x length($1); my $clean = 'X' x length($1);