linux-kernel - Re: [PATCH] checkpatch: warn about incorrect _

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Date:	Mon, 30 Sep 2013 08:50:23 -0700
From:	Joe Perches <joe@...ches.com>
To:	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Cc:	Andy Whitcroft <apw@...onical.com>, linux-kernel@...r.kernel.org,
	Kyungmin Park <kyungmin.park@...sung.com>
Subject: Re: [PATCH] checkpatch: warn about incorrect __initdata placement

On Mon, 2013-09-30 at 15:23 +0200, Bartlomiej Zolnierkiewicz wrote:
> __initdata tag should be placed between the variable name and equal
> sign for the variable to be placed in the intended .init.data section.
[]
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
[]
> @@ -4275,6 +4275,12 @@ sub process {
[]
> +# check for incorrect __initdata placement
> +		if ($line =~ /\bstruct\s+__initdata.*\=/) {
> +			WARN("INITDATA_PLACEMENT",
> +			     "__initdata tag should be placed between the variable name and equal sign\n" . $herecurr);
> +		}

Hello Bartlomiej

I believe that -next commit 12de1c1ad0df
("checkpatch: add rules to check init attribute and const defects")

which adds $InitAttribute already does this test.

Anyway, this should be:
	if ($line =~ /\b(struct|union)\s+$InitAttribute.*=/) {

and please add this test adjacent to the other $InitAttribute
tests only if it's not already covered by the first bit added
by that commit below (again, I believe it is):

------------------------

# check for bad placement of section $InitAttribute (e.g.: __initdata)
		if ($line =~ /(\b$InitAttribute\b)/) {
			my $attr = $1;
			if ($line =~ /^\+\s*static\s+(?:const\s+)?(?:$attr\s+)?($NonptrTypeWithAttr)\s+(?:$attr\s+)?($Ident(?:\[[^]]*\])?)\s*[=;]/) {


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