From af207524a49c3d70af0a9196072ab3b6d690fcf7 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Tue, 11 Oct 2016 13:52:05 -0700 Subject: [PATCH] checkpatch: improve the block comment * alignment test An "uninitialized value" is emitted when a block comment starts on the same line as a statement. Fix this and make the test use a little fewer cpu cycles too. Link: http://lkml.kernel.org/r/3c9993320c2182d37f53ac540878cfef59c3f62d.1473365956.git.joe@perches.com Signed-off-by: Joe Perches Reported-by: Charlemagne Lasse Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- scripts/checkpatch.pl | 19 ++++++++++++------- 1 file changed, 12 insertions(+), 7 deletions(-) diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index e44dc0c75d54..3fa2b2e973eb 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -3005,18 +3005,23 @@ sub process { # Block comment * alignment if ($prevline =~ /$;[ \t]*$/ && #ends in comment - (($prevrawline =~ /^\+.*?\/\*/ && #starting /* + $line =~ /^\+[ \t]*$;/ && #leading comment + $rawline =~ /^\+[ \t]*\*/ && #leading * + (($prevrawline =~ /^\+.*?\/\*/ && #leading /* $prevrawline !~ /\*\/[ \t]*$/) || #no trailing */ - $prevrawline =~ /^\+[ \t]*\*/) && #starting * - $rawline =~ /^\+[ \t]*\*/) { #rawline * + $prevrawline =~ /^\+[ \t]*\*/)) { #leading * + my $oldindent; $prevrawline =~ m@^\+([ \t]*/?)\*@; - my $oldindent = expand_tabs($1); + if (defined($1)) { + $oldindent = expand_tabs($1); + } else { + $prevrawline =~ m@^\+(.*/?)\*@; + $oldindent = expand_tabs($1); + } $rawline =~ m@^\+([ \t]*)\*@; my $newindent = $1; - my $test_comment = '^\\+' . "$;" x (length($newindent) + 1); $newindent = expand_tabs($newindent); - if ($line =~ /$test_comment/ && - length($oldindent) ne length($newindent)) { + if (length($oldindent) ne length($newindent)) { WARN("BLOCK_COMMENT_STYLE", "Block comments should align the * on each line\n" . $hereprev); } -- 2.20.1