linux-kernel - Re: [PATCH 1/1] scripts/checkpatch.pl: to give more detailed warning message in case printk is used in any patch

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Message-ID: <53134C4D.2090406@linux.com>
Date:	Sun, 02 Mar 2014 16:20:45 +0100
From:	Levente Kurusa <levex@...ux.com>
To:	Yogesh Chaudhari <mr.yogesh@...il.com>,
	LKML <linux-kernel@...r.kernel.org>
CC:	joe@...ches.com, apw@...onical.com
Subject: Re: [PATCH 1/1] scripts/checkpatch.pl: to give more detailed warning
 message in case printk is used in any patch

Hi,

On 03/02/2014 04:01 PM, Yogesh Chaudhari wrote:
> Based on the discussion here:
> https://lkml.org/lkml/2014/3/2/17
> 
> I would like to propose this patch to improve the warning message in
> checkpatch.pl.  Comments/Suggestions on possible improvements are
> welcome.
> 
> 
> =========================================================
> 
> This patch modifies scripts/checkpatch.pl to give more detailed
> warning message in case printk is used in any patch.
> 
> Signed-off-by: Yogesh Chaudhari <mr.yogesh@...il.com>
> ---
>  scripts/checkpatch.pl | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> index 464dcef..526f33aa 100755
> --- a/scripts/checkpatch.pl
> +++ b/scripts/checkpatch.pl
> @@ -2799,7 +2799,10 @@ sub process {
>              my $level2 = $level;
>              $level2 = "dbg" if ($level eq "debug");
>              WARN("PREFER_PR_LEVEL",
> -                 "Prefer netdev_$level2(netdev, ... then
> dev_$level2(dev, ... then pr_$level(...  to printk(KERN_$orig ...\n" .
> $herecurr);

Whoops, that's a word-wrap!
Try using git-format-patch+git-send-email to send the patch.

> +                 "Order of preference for printing debug messages:
> +                 1. [subsystem]_$level2([subsystem]dev, ... eg
> netdev_$level2(netdev, ... for netdevice object
> +                 2. dev_$level2(dev, ... for drivers with struct device
> +                 3. pr_$level(...  to printk(KERN_$orig ...\n" . $herecurr);
>          }
> 
>          if ($line =~ /\bpr_warning\s*\(/) {
> 

IMHO, this message is too big. The one we already have is nice and clean.
I would simply do: s/netdev/[subsystem]/ or something among the lines.


-- 
Regards,
Levente Kurusa
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