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Date:   Fri, 18 Jun 2021 16:18:17 +0200
From:   Christoph Hellwig <hch@lst.de>
To:     zhouchuangao <zhouchuangao@vivo.com>
Cc:     Keith Busch <kbusch@kernel.org>, Jens Axboe <axboe@fb.com>,
        Christoph Hellwig <hch@lst.de>,
        Sagi Grimberg <sagi@grimberg.me>,
        linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] drivers/nvme/host: Use kobj_to_dev() API
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On Fri, Jun 18, 2021 at 07:10:58AM -0700, zhouchuangao wrote:
> Use kobj_to_dev() API instead of container_of().

Why?  That just makes the code harder to read.