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Date:   Mon, 6 Apr 2020 06:09:27 -0700
From:   Christoph Hellwig <hch@infradead.org>
To:     "Michael S. Tsirkin" <mst@redhat.com>
Cc:     linux-kernel@vger.kernel.org, Jason Wang <jasowang@redhat.com>,
        virtualization@lists.linux-foundation.org
Subject: Re: [PATCH] vdpa-sim: depend on HAS_DMA
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Pleae just drop the code - we should not add new drivers with custom
DMA ops.