Re: [RFC PATCH 2/4] ACPI/IORT: Set bus DMA mask as appropriate

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On Tue, Jul 10, 2018 at 06:17:17PM +0100, Robin Murphy wrote:
> When an explicit DMA limit is described by firmware, we need to remember
> it regardless of how drivers might subsequently update their devices'
> masks. The new bus_dma_mask field does that.

Shouldn't we also stop presetting the dma mask after this?
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