From: Joe Perches <joe@perches.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Pekka Enberg <penberg@kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Andy Whitcroft <apw@shadowen.org>,
Andrew Morton <akpm@linux-foundation.org>,
Cyrill Gorcunov <gorcunov@openvz.org>,
linux-kernel@vger.kernel.org,
Pavel Emelyanov <xemul@parallels.com>,
Serge Hallyn <serge.hallyn@canonical.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Kees Cook <keescook@chromium.org>, Tejun Heo <tj@kernel.org>,
Andrew Vagin <avagin@openvz.org>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Alexey Dobriyan <adobriyan@gmail.com>,
Andi Kleen <andi@firstfloor.org>,
KOSAKI Motohiro <kosaki.motohiro@gmail.com>,
"H. Peter Anvin" <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>,
Glauber Costa <glommer@parallels.com>,
Matt Helsley <matthltc@us.ibm.com>,
Eric Dumazet <eric.dumazet@gmail.com>,
Vasiliy Kulikov <segoon@openwall.com>,
Valdis.Kletnieks@vt.edu
Subject: [PATCH] checkpatch: Add line-length options, set default to 100
Date: Sun, 05 Feb 2012 11:01:29 -0800 [thread overview]
Message-ID: <1328468489.7008.70.camel@joe2Laptop> (raw)
In-Reply-To: <20120205181349.GA24281@elte.hu>
80 column line lengths can be a bit constraining.
Make the default 100 and still emit a warning
when that length is exceeded.
When option --strict is set, emit a check when
the length is > 80 too.
Add a command line option --line-length to set
the standard line length allowed.
Using command line option --ignore=LINE_LENGTH
will not emit any line-length messages.
Adding a .checkpatch.conf file with appropriate
command line options would also avoid line-length
messages.
Signed-off-by: Joe Perches <joe@perches.com>
---
scripts/checkpatch.pl | 21 +++++++++++++++------
1 files changed, 15 insertions(+), 6 deletions(-)
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 2b52aeb..6923270 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -34,6 +34,9 @@ my @ignore = ();
my $help = 0;
my $configuration_file = ".checkpatch.conf";
+my $max_line_length_warn = 100; # normal cases
+my $max_line_length_strict = 80; # when using --strict
+
sub help {
my ($exitcode) = @_;
@@ -50,6 +53,7 @@ Options:
--terse one line per report
-f, --file treat FILE as regular source file
--subjective, --strict enable more subjective tests
+ --line-length=val set line length to emit a warning when exceeded
--ignore TYPE(,TYPE2...) ignore various comma separated message types
--show-types show the message "types" in the output
--root=PATH PATH to the kernel tree root
@@ -105,6 +109,7 @@ GetOptions(
'f|file!' => \$file,
'subjective!' => \$check,
'strict!' => \$check,
+ 'line-length=i' => \$max_line_length_warn,
'ignore=s' => \@ignore,
'show-types!' => \$show_types,
'root=s' => \$root,
@@ -1726,15 +1731,19 @@ 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
+# check line length limits
if ($line =~ /^\+/ && $prevrawline !~ /\/\*\*/ &&
$rawline !~ /^.\s*\*\s*\@$Ident\s/ &&
!($line =~ /^\+\s*$logFunctions\s*\(\s*(?:(KERN_\S+\s*|[^"]*))?"[X\t]*"\s*(?:|,|\)\s*;)\s*$/ ||
- $line =~ /^\+\s*"[^"]*"\s*(?:\s*|,|\)\s*;)\s*$/) &&
- $length > 80)
- {
- WARN("LONG_LINE",
- "line over 80 characters\n" . $herecurr);
+ $line =~ /^\+\s*"[^"]*"\s*(?:\s*|,|\)\s*;)\s*$/)) {
+ if ($length > $max_line_length_strict) {
+ CHK("LONG_LINE",
+ "line longer than $max_line_length_strict characters\n" . $herecurr);
+ }
+ if ($length > $max_line_length_warn) {
+ WARN("LONG_LINE",
+ "line longer than $max_line_length_warn characters\n" . $herecurr);
+ }
}
# check for spaces before a quoted newline
next prev parent reply other threads:[~2012-02-05 19:01 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-30 14:09 [patch cr 0/4] [patch cr 0/@total@] Cyrill Gorcunov
2012-01-30 14:09 ` [patch cr 1/4] fs, proc: Introduce /proc/<pid>/task/<tid>/children entry v9 Cyrill Gorcunov
2012-01-30 14:09 ` [patch cr 2/4] [RFC] syscalls, x86: Add __NR_kcmp syscall v7 Cyrill Gorcunov
2012-01-30 19:58 ` Jonathan Corbet
2012-01-30 21:07 ` Cyrill Gorcunov
2012-01-30 21:11 ` H. Peter Anvin
2012-02-02 23:26 ` Andrew Morton
2012-02-03 2:27 ` H. Peter Anvin
2012-02-03 7:09 ` Cyrill Gorcunov
2012-02-03 7:46 ` Ingo Molnar
2012-02-03 8:35 ` Cyrill Gorcunov
2012-02-03 9:09 ` Ingo Molnar
2012-02-03 9:22 ` Andrew Morton
2012-02-03 9:28 ` Cyrill Gorcunov
2012-02-03 17:32 ` H. Peter Anvin
2012-02-03 17:35 ` H. Peter Anvin
2012-02-03 17:42 ` Cyrill Gorcunov
2012-02-03 9:52 ` Ingo Molnar
2012-02-03 10:07 ` [PATCH] SubmittingPatches: Increase the line length limit from 80 to 100 colums Ingo Molnar
2012-02-03 10:17 ` Pekka Enberg
2012-02-03 10:23 ` Cyrill Gorcunov
2012-02-03 10:40 ` Alexey Dobriyan
2012-02-03 16:13 ` Tejun Heo
2012-02-03 16:39 ` hpanvin@gmail.com
2012-02-03 17:56 ` Andi Kleen
2012-02-03 20:57 ` Andrew Morton
2012-02-03 21:00 ` H. Peter Anvin
2012-02-03 21:06 ` H. Peter Anvin
2012-02-04 13:08 ` Ingo Molnar
2012-02-03 21:27 ` Linus Torvalds
2012-02-03 23:20 ` [PATCH] checkpatch: Warn on code with 6+ tab indentation Joe Perches
2012-02-04 1:27 ` Linus Torvalds
2012-02-04 1:33 ` Joe Perches
2012-02-04 3:09 ` Linus Torvalds
2012-02-04 3:21 ` Joe Perches
2012-02-04 3:35 ` Linus Torvalds
2012-02-04 3:58 ` Joe Perches
2012-02-04 1:37 ` Andrew Morton
2012-02-04 2:40 ` Eric W. Biederman
2012-02-04 2:46 ` Joe Perches
2012-02-04 4:45 ` Tony Luck
2012-02-04 4:53 ` Joe Perches
2012-02-04 13:03 ` [PATCH, v2] checkpatch: Warn on code with 6+ tab indentation, remove 80col warning Ingo Molnar
2012-02-04 16:22 ` Joe Perches
2012-02-04 18:02 ` Ingo Molnar
2012-02-04 18:48 ` Joe Perches
2012-02-04 18:54 ` Pekka Enberg
2012-02-04 19:27 ` Joe Perches
2012-02-04 19:32 ` Pekka Enberg
2012-02-05 11:38 ` Ingo Molnar
2012-02-05 16:21 ` Joe Perches
2012-02-05 18:13 ` Ingo Molnar
2012-02-05 19:01 ` Joe Perches [this message]
2012-02-06 12:36 ` [PATCH] checkpatch: Add line-length options, set default to 100 Dan Carpenter
2012-02-04 1:24 ` [PATCH] SubmittingPatches: Increase the line length limit from 80 to 100 colums Randy Dunlap
2012-02-09 21:55 ` Jan Engelhardt
2012-02-09 22:09 ` Joe Perches
2012-02-09 22:30 ` Mark Brown
2012-01-30 14:09 ` [patch cr 3/4] c/r: procfs: add arg_start/end, env_start/end and exit_code members to /proc/$pid/stat Cyrill Gorcunov
2012-02-02 23:26 ` Andrew Morton
2012-02-03 7:11 ` Cyrill Gorcunov
2012-01-30 14:09 ` [patch cr 4/4] c/r: prctl: Extend PR_SET_MM to set up more mm_struct entries Cyrill Gorcunov
2012-02-02 23:27 ` Andrew Morton
2012-02-03 7:18 ` Cyrill Gorcunov
2012-02-02 23:26 ` [patch cr 0/4] [patch cr 0/@total@] Andrew Morton
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1328468489.7008.70.camel@joe2Laptop \
--to=joe@perches.com \
--cc=Valdis.Kletnieks@vt.edu \
--cc=adobriyan@gmail.com \
--cc=akpm@linux-foundation.org \
--cc=andi@firstfloor.org \
--cc=apw@shadowen.org \
--cc=avagin@openvz.org \
--cc=ebiederm@xmission.com \
--cc=eric.dumazet@gmail.com \
--cc=glommer@parallels.com \
--cc=gorcunov@openvz.org \
--cc=hpa@zytor.com \
--cc=kamezawa.hiroyu@jp.fujitsu.com \
--cc=keescook@chromium.org \
--cc=kosaki.motohiro@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=matthltc@us.ibm.com \
--cc=mingo@elte.hu \
--cc=penberg@kernel.org \
--cc=segoon@openwall.com \
--cc=serge.hallyn@canonical.com \
--cc=tglx@linutronix.de \
--cc=tj@kernel.org \
--cc=torvalds@linux-foundation.org \
--cc=xemul@parallels.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).