linux-kernel - Re: [PATCH v3 1/4] ocfs2: export ocfs2

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Message-Id: <20151229133844.b2758dbe21604e64acd50383@linux-foundation.org>
Date:	Tue, 29 Dec 2015 13:38:44 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Gang He <ghe@...e.com>
Cc:	mfasheh@...e.com, rgoldwyn@...e.de, linux-kernel@...r.kernel.org,
	ocfs2-devel@....oracle.com
Subject: Re: [PATCH v3 1/4] ocfs2: export ocfs2_kset for online file check

On Fri, 25 Dec 2015 15:16:16 +0800 Gang He <ghe@...e.com> wrote:

> Export ocfs2_kset object from ocfs2_stackglue kernel module,
> then online file check code will create the related sysfiles
> under ocfs2_kset object.
> 
> ...
>
> --- a/fs/ocfs2/stackglue.c
> +++ b/fs/ocfs2/stackglue.c
> @@ -629,7 +629,8 @@ static struct attribute_group ocfs2_attr_group = {
>  	.attrs = ocfs2_attrs,
>  };
>  
> -static struct kset *ocfs2_kset;
> +struct kset *ocfs2_kset;
> +EXPORT_SYMBOL_GPL(ocfs2_kset);

The EXPORT_SYMBOL is only needed if this symbol is to be referred to
from a different module.  That isn't the case here - everything which
refers to ocfs2_kset is linked into ocfs2.ko, correct?
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