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Message-ID: <d675ffc7c85c68117c3e2d78d2e35679f778a9c2.camel@perches.com>
Date: Mon, 16 Nov 2020 13:55:44 -0800
From: Joe Perches <joe@...ches.com>
To: Aditya Srivastava <yashsri421@...il.com>
Cc: linux-kernel-mentees@...ts.linuxfoundation.org,
linux-kernel@...r.kernel.org, lukas.bulwahn@...il.com
Subject: Re: [PATCH v2] checkpatch: add fix option for MAINTAINERS_STYLE
On Mon, 2020-11-16 at 12:49 +0530, Aditya Srivastava wrote:
> Checkpatch expects entries in MAINTAINERS file in a specific order and
> warns if the changes made do not follow the specified order.
>
> E.g., running checkpatch on commit 6f736909f0a4 ("MAINTAINERS: Add
> patchwork link for PWM entry") reports this warning:
>
> WARNING: Misordered MAINTAINERS entry - list 'Q:' before 'T:'
> T: git git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm.git
> +Q: https://patchwork.ozlabs.org/project/linux-pwm/list/
>
> Provide a simple fix by swapping the unordered lines
NAK.
This --fix option can't work if a patch merely adds a single line.
The patch context lines would be wrong.
This has to make sure the both lines are additions (start with +)
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
[]
> @@ -3299,13 +3299,22 @@ sub process {
> "Unknown MAINTAINERS entry type: '$cur'\n" . $herecurr);
> } else {
> if ($previndex >= 0 && $curindex < $previndex) {
> - WARN("MAINTAINERS_STYLE",
> - "Misordered MAINTAINERS entry - list '$cur:' before '$prev:'\n" . $hereprev);
> + if (WARN("MAINTAINERS_STYLE",
> + "Misordered MAINTAINERS entry - list '$cur:' before '$prev:'\n" . $hereprev) &&
> + $fix) {
> + # swap these lines
> + $fixed[$fixlinenr - 1] = $rawline;
> + $fixed[$fixlinenr] = $prevrawline;
> + }
> } elsif ((($prev eq 'F' && $cur eq 'F') ||
> ($prev eq 'X' && $cur eq 'X')) &&
> ($prevval cmp $curval) > 0) {
> - WARN("MAINTAINERS_STYLE",
> - "Misordered MAINTAINERS entry - list file patterns in alphabetic order\n" . $hereprev);
> + if (WARN("MAINTAINERS_STYLE",
> + "Misordered MAINTAINERS entry - list file patterns in alphabetic order\n" . $hereprev) &&
> + $fix) {
> + $fixed[$fixlinenr - 1] = $rawline;
> + $fixed[$fixlinenr] = $prevrawline;
> + }
> }
> }
> }
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