Re: [PATCH 1/1] s390/cio: fix virtio-ccw DMA without PV
From: Christoph Hellwig
Date: Mon Sep 30 2019 - 10:56:15 EST
The code looks fine, but I still very much disagree with the workaround
comments. The different mask for allocations vs streaming mappings is
exactly how the DMA API is intended to work.