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Date: Wed, 29 Jul 2026 09:10:48 +0200
From: Christoph Hellwig <hch@lst.de>
To: Pavel Begunkov <asml.silence@gmail.com>
Cc: Jens Axboe <axboe@kernel.dk>, Keith Busch <kbusch@kernel.org>,
	Christoph Hellwig <hch@lst.de>, Sagi Grimberg <sagi@grimberg.me>,
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	io-uring@vger.kernel.org, linux-media@vger.kernel.org,
	dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org,
	Alexander Viro <viro@zeniv.linux.org.uk>,
	Christian Brauner <brauner@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Sumit Semwal <sumit.semwal@linaro.org>,
	Christian =?iso-8859-1?Q?K=F6nig?= <christian.koenig@amd.com>,
	Nitesh Shetty <nj.shetty@samsung.com>,
	Kanchan Joshi <joshi.k@samsung.com>,
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	Phil Cayton <phil.cayton@intel.com>,
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	Damien Le Moal <dlemoal@kernel.org>,
	Alasdair Kergon <agk@redhat.com>, Mike Snitzer <snitzer@kernel.org>,
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	dm-devel@lists.linux.dev, nvdimm@lists.linux.dev,
	linux-btrfs@vger.kernel.org, ceph-devel@vger.kernel.org
Subject: Re: [PATCH v4 08/14] nvme-pci: implement dma_token backed requests
Message-ID: <20260729071048.GH9534@lst.de>
References: <cover.1785274111.git.asml.silence@gmail.com> <19e5c945ea8114320c10f7951d19197d48b59249.1785274111.git.asml.silence@gmail.com>
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User-Agent: Mutt/1.5.17 (2007-11-01)

> +static int nvme_init_dma_buf_io_ctx(struct block_device *bdev,
> +				    struct dma_buf_io_ctx *ctx)

Please stick to two-tab indents for function declaration continuation
for the nvme code to keep the code easy to maintain.

> +#if defined(CONFIG_DMA_SHARED_BUFFER)

This should be good old #ifdef.  Same in a few other places over
the series.

Modulo these minor nits the patch looks good.