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Date:   Mon, 29 Aug 2016 11:01:08 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     ksummit-discuss@...ts.linuxfoundation.org
Cc:     Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
        "Levin, Alexander" <alexander.levin@...izon.com>,
        Joe Perches <joe@...ches.com>,
        Greg KH <gregkh@...uxfoundation.org>,
        Sasha Levin <levinsasha928@...il.com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [Ksummit-discuss] checkkpatch (in)sanity ?

On Monday, August 29, 2016 9:15:15 AM CEST Alexandre Belloni wrote:
> > 
> > commiter      commits         issues
> > arnd          858             2155
> > axboe         53              22
> > corbet                15              9
> > davem         55              81
> > grant.likely  2               0
> > gregkh                38              46
> > hch           393             581
> > James.Bottomley       15              15
> > martin.petersen       18              20
> > mchehab       678             1042
> > mgorman       104             256
> > mingo                 58              192
> > paulmck       176             68
> > peterz                226             511
> > rostedt       123             178
> > shuahkh       53              6
> > tglx          200             287
> > torvalds      64              89
> > tytso                 37              77
> > viro          350             256
> > 
> > And for the last 10,000 commits in the log, that script has observed 10,783 issues.
> > 
> > It'll be interesting to hear from these people about their view of checkpatch, but IMO when on average there are more issues than commits I can suggest two possible causes:
> > 
> >  1. People are used to ignore checkpatch warnings.
> >  2. People aren't using checkpatch.
> > 
> 
> Well, Arnd is used to move around old code when refactoring. As the code
> just moves, he rarely solves checkpatch issues when doing so which is
> the right thing to do.

I don't find checkpatch.pl overly useful for my own patches and rarely
run it. I looked over the last few hundred commits and found that almost
all the warnings were for:

- having overly long lines in commit messages when I quoted a long
  compiler warning. I generally don't wrap those to make it easier to
  search for the warnings in the git history

- missing the word "commit" before a reference to another changeset
  in full-text. I'll change that in the future if that makes people
  happy, but it doesn't seem important.

- existing style issues that I did not fix when fixing a bug. In many
  cases I find it better not to change coding style while fixing
  a bug, but there are other cases in which I do.

	Arnd

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