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Message-ID: <4a8c5a82369787869ec52667397e61b6f619b08f.camel@perches.com>
Date:   Thu, 26 Jul 2018 14:31:10 -0700
From:   Joe Perches <joe@...ches.com>
To:     Prakruthi Deepak Heragu <pheragu@...eaurora.org>,
        apw@...onical.com, Andrew Morton <akpm@...ux-foundation.org>
Cc:     linux-kernel@...r.kernel.org, ckadabi@...eaurora.org,
        tsoni@...eaurora.org, bryanh@...eaurora.org,
        Abhijeet Dharmapurikar <adharmap@...eaurora.org>
Subject: Re: [PATCH v2] checkpatch: check for #if 0/#if 1

On Thu, 2018-07-26 at 10:13 -0700, Prakruthi Deepak Heragu wrote:
> The #if 0 or #if 1 is used to toggle features. Warn if #if 0 or #if 1
> is present and suggest that they can be removed.
> 
> Signed-off-by: Abhijeet Dharmapurikar <adharmap@...eaurora.org>
> Signed-off-by: Prakruthi Deepak Heragu <pheragu@...eaurora.org>

Andrew, can you please move the misplaced periods below
to the appropriate positions?

Otherwise:

Acked-by: Joe Perches <joe@...ches.com>

> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
[]
> @@ -5383,9 +5383,14 @@ sub process {
>  
>  # warn about #if 0
>  		if ($line =~ /^.\s*\#\s*if\s+0\b/) {
> -			CHK("REDUNDANT_CODE",
> -			    "if this code is redundant consider removing it\n" .
> -				$herecurr);
> +			WARN("IF_0",
> +			     "Consider removing the code enclosed by this #if 0 and its #endif\n".  $herecurr);

This should have a space before the . and only one space after.

> +		}
> +
> +# warn about #if 1
> +		if ($line =~ /^.\s*\#\s*if\s+1\b/) {
> +			WARN("IF_1",
> +			     "Consider removing the #if 1 and its #endif\n".  $herecurr);

here too

>  		}
>  
>  # check for needless "if (<foo>) fn(<foo>)" uses

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