From: Ingo Molnar <mingo@elte.hu>
To: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: linux-kernel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.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>,
Pekka Enberg <penberg@kernel.org>,
Eric Dumazet <eric.dumazet@gmail.com>,
Vasiliy Kulikov <segoon@openwall.com>,
Valdis.Kletnieks@vt.edu
Subject: Re: [patch cr 2/4] [RFC] syscalls, x86: Add __NR_kcmp syscall v7
Date: Fri, 3 Feb 2012 10:09:29 +0100 [thread overview]
Message-ID: <20120203090929.GA23996@elte.hu> (raw)
In-Reply-To: <20120203083530.GD1968@moon>
* Cyrill Gorcunov <gorcunov@openvz.org> wrote:
> > > + get_random_bytes(&cookies[i][j],
> > > + sizeof(cookies[i][j]));
> >
> > ugly line break.
> >
>
> Why? Looks pretty good to me. But sure I'll change it.
It's ugly because it serves no purpose other than pacifying
checkpatch and makes the code *uglier*.
It's a disease. When checkpatch tells you "this line is too
long" then consider it a code cleanliness warning!
And code
readability and cleanliness
is not improved
by random line-
breaks, right?
'breaking the line' is the *wrong fix* in roughly 90% of the
cases.
So instead of dumbly breaking the line you need to think about
*WHY* the line got too long, not just mechanically work around
the checkpatch warning!
Too long lines can have many reasons, it's usually one of
several reasons:
- too much nesting due to too large function.
solution: break up the function
or: - too verbose statements with not enough abbreviation
solution: find a more compact way to write it
or if the code looks compact enough and is not over-nested then
*leave the line alone*. By breaking it you have not improved -
you have made it worse.
Thanks,
Ingo
next prev parent reply other threads:[~2012-02-03 9:10 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 [this message]
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 ` [PATCH] checkpatch: Add line-length options, set default to 100 Joe Perches
2012-02-06 12:36 ` 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
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