linux-kernel - Re: [PATCH] checkpatch: Warn about data

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Message-ID: <20200401103219.GB17575@willie-the-truck>
Date:   Wed, 1 Apr 2020 11:32:20 +0100
From:   Will Deacon <will@...nel.org>
To:     Marco Elver <elver@...gle.com>
Cc:     paulmck@...nel.org, dvyukov@...gle.com, glider@...gle.com,
        andreyknvl@...gle.com, kasan-dev@...glegroups.com,
        linux-kernel@...r.kernel.org, apw@...onical.com, joe@...ches.com
Subject: Re: [PATCH] checkpatch: Warn about data_race() without comment

On Wed, Apr 01, 2020 at 12:17:14PM +0200, Marco Elver wrote:
> Warn about applications of data_race() without a comment, to encourage
> documenting the reasoning behind why it was deemed safe.
> 
> Suggested-by: Will Deacon <will@...nel.org>
> Signed-off-by: Marco Elver <elver@...gle.com>
> ---
>  scripts/checkpatch.pl | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> index a63380c6b0d2..48bb9508e300 100755
> --- a/scripts/checkpatch.pl
> +++ b/scripts/checkpatch.pl
> @@ -5833,6 +5833,14 @@ sub process {
>  			}
>  		}
>  
> +# check for data_race without a comment.
> +		if ($line =~ /\bdata_race\s*\(/) {
> +			if (!ctx_has_comment($first_line, $linenr)) {
> +				WARN("DATA_RACE",
> +				     "data_race without comment\n" . $herecurr);
> +			}
> +		}
> +

Thanks, looks sane to me:

Acked-by: Will Deacon <will@...nel.org>

Although I suppose I now need to add some comments to my list stuff. I
didn't think that through, did I? ;)

Will