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Re: [Xen-devel] [PATCH 19/44] s390: implement ->mapping_error
- To: Christoph Hellwig <hch@xxxxxx>
- From: Gerald Schaefer <gerald.schaefer@xxxxxxxxxx>
- Date: Thu, 8 Jun 2017 18:23:11 +0200
- Cc: linux-mips@xxxxxxxxxxxxxx, linux-samsung-soc@xxxxxxxxxxxxxxx, linux-ia64@xxxxxxxxxxxxxxx, linux-c6x-dev@xxxxxxxxxxxxx, linux-s390@xxxxxxxxxxxxxxx, linux-sh@xxxxxxxxxxxxxxx, linux-hexagon@xxxxxxxxxxxxxxx, linux-xtensa@xxxxxxxxxxxxxxxx, x86@xxxxxxxxxx, linux-tegra@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, dri-devel@xxxxxxxxxxxxxxxxxxxxx, dmaengine@xxxxxxxxxxxxxxx, iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx, openrisc@xxxxxxxxxxxxxxxxxxxx, netdev@xxxxxxxxxxxxxxx, sparclinux@xxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
- Delivery-date: Thu, 08 Jun 2017 17:05:49 +0000
- List-id: Xen developer discussion <xen-devel.lists.xen.org>
On Thu, 8 Jun 2017 15:25:44 +0200
Christoph Hellwig <hch@xxxxxx> wrote:
> s390 can also use noop_dma_ops, and while that currently does not return
> errors it will so in the future. Implementing the mapping_error method
> is the proper way to have per-ops error conditions.
>
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Acked-by: Gerald Schaefer <gerald.schaefer@xxxxxxxxxx>
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