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Date:   Thu, 16 Apr 2020 04:21:15 -0700
From:   Matthew Wilcox <willy@infradead.org>
To:     Muchun Song <songmuchun@bytedance.com>
Cc:     akpm@linux-foundation.org, Markus.Elfring@web.de, david@redhat.com,
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        Xiongchun Duan <duanxiongchun@bytedance.com>
Subject: Re: [PATCH v4] mm/ksm: Fix NULL pointer dereference when KSM zero
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On Thu, Apr 16, 2020 at 10:50:34AM +0800, Muchun Song wrote:
> +			/**
> +			 * If the vma is out of date, we do not need to
> +			 * continue.
> +			 */

This comment is not in kernel-doc format and should not start with '/**'.