linux-kernel - Re: [PATCH] checkpatch: Add warning about submitting patches using --file

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Message-ID: <20130902195627.GC32628@leaf>
Date:	Mon, 2 Sep 2013 12:56:27 -0700
From:	Josh Triplett <josh@...htriplett.org>
To:	Joe Perches <joe@...ches.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, Andy Whitcroft <apw@...onical.com>,
	David Howells <dhowells@...hat.com>,
	ksummit-2013-discuss@...ts.linuxfoundation.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Dan Carpenter <dan.carpenter@...cle.com>
Subject: Re: [PATCH] checkpatch: Add warning about submitting patches using
 --file

On Mon, Sep 02, 2013 at 12:40:47PM -0700, Joe Perches wrote:
> Add a message describing the lack of value in using
> --file to generate patches.
> 
> Exclude files in staging from this message.
> 
> A similar message was removed by commit cf655043d4b
> ("update checkpatch.pl to version 0.15")
> 
> Signed-off-by: Joe Perches <joe@...ches.com>

Reviewed-by: Josh Triplett <josh@...htriplett.org>

> ---
> 
> Maybe this sort of wordsmithing is valuable.
> 
>  scripts/checkpatch.pl | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> index 9bb056c..f788a14 100755
> --- a/scripts/checkpatch.pl
> +++ b/scripts/checkpatch.pl
> @@ -4280,6 +4280,19 @@ $vname has style problems, please review.
>  If any of these errors are false positives, please report
>  them to the maintainer, see CHECKPATCH in MAINTAINERS.
>  EOM
> +		if ($file && $realfile !~ m@\bstaging/@) {
> +			print << "EOM";
> +
> +WARNING: When using --file mode, do not send patches that just make
> +whitespace or formatting changes unless more significant changes are
> +also made for other reasons in another patch.
> +
> +Patches that are just code style changes have a real cost.
> +
> +These sort of patches can cause rejects with other changes and are
> +thought of by many maintainers as more harmful and tiresome than useful.
> +EOM
> +		}
>  	}
>  
>  	return $clean;
> 
> 
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