Re: [PATCH] iommu/vt-d: Return the correct dma mask when we are bypassing the IOMMU
From: Christoph Hellwig
Date: Wed Oct 09 2019 - 02:51:19 EST
On Wed, Oct 09, 2019 at 10:45:15AM +0800, Lu Baolu wrote:
> Do you mind explaining why we always return 32 bit here?
See the comment in dma_get_required_mask().