[dm-devel] [PATCH] scripts/checkpatch.pl: Change long line warning to 105 chars
Joe Perches
joe at perches.com
Fri Dec 18 05:12:24 UTC 2009
On Thu, 2009-12-17 at 23:29 -0500, Valdis.Kletnieks at vt.edu wrote:
> Yeah, but I respectfully submit that if the regexp '^\t{6}' matches a non-
> continuation line, it's probably in its rights to whinge.
> grep -r -P '^\t{7:}(?!(.*,$|.*\);$))' . | more
> produces a whole lot of "this can't end well" output.
I think this is a good test to add to checkpatch.
Add 105 character long line WARN test
Add 80 character long line STRICT test
Add 6+ leading indent tabs test, consider restructuring
Signed-off-by: Joe Perches <joe at perches.com>
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index bc4114f..c358251 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1374,13 +1374,20 @@ sub process {
# check we are in a valid source file if not then ignore this hunk
next if ($realfile !~ /\.(h|c|s|S|pl|sh)$/);
-#80 column limit
+#Line too long
if ($line =~ /^\+/ && $prevrawline !~ /\/\*\*/ &&
$rawline !~ /^.\s*\*\s*\@$Ident\s/ &&
- $line !~ /^\+\s*printk\s*\(\s*(?:KERN_\S+\s*)?"[X\t]*"\s*(?:,|\)\s*;)\s*$/ &&
- $length > 80)
- {
- WARN("line over 80 characters\n" . $herecurr);
+ $line !~ /^\+\s*printk\s*\(\s*(?:KERN_\S+\s*)?"[X\t]*"\s*(?:,|\)\s*;)\s*$/) {
+ if ($length > 105) {
+ WARN("line over 105 characters\n" . $herecurr);
+ } elsif ($length > 80) {
+ CHK("line over 80 characters\n" . $herecurr);
+ }
+ }
+
+#too many leading tabs - deep leading indent
+ if ($line =~ /^\+ {6,}(?!(.*,$|.*\);$))/) {
+ CHK("Too many leading tabs. Consider restructuring code\n" . $herecurr);
}
# check for adding lines without a newline.
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