linux-kernel - Re: [PATCH] vdpa-sim: depend on HAS

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Message-ID: <20200406095931-mutt-send-email-mst@kernel.org>
Date:   Mon, 6 Apr 2020 10:02:53 -0400
From:   "Michael S. Tsirkin" <mst@...hat.com>
To:     Christoph Hellwig <hch@...radead.org>
Cc:     linux-kernel@...r.kernel.org, Jason Wang <jasowang@...hat.com>,
        virtualization@...ts.linux-foundation.org
Subject: Re: [PATCH] vdpa-sim: depend on HAS_DMA

On Mon, Apr 06, 2020 at 06:09:27AM -0700, Christoph Hellwig wrote:
> Pleae just drop the code - we should not add new drivers with custom
> DMA ops.

I'm not sure there's another way to do this: this not a driver, it's a
software emulator that pretends to be an actual device. We can't
have the platform supply DMA ops here since the platform is a regular
x86 or whatever.

-- 
MST