Re: [PATCH 19/44] s390: implement ->mapping_error
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- To: Christoph Hellwig <hch@xxxxxx>
- Subject: Re: [PATCH 19/44] s390: implement ->mapping_error
- From: Gerald Schaefer <gerald.schaefer@xxxxxxxxxx>
- Date: Thu, 8 Jun 2017 18:23:11 +0200
- Cc: x86@xxxxxxxxxx, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, linux-c6x-dev@xxxxxxxxxxxxx, linux-hexagon@xxxxxxxxxxxxxxx, linux-ia64@xxxxxxxxxxxxxxx, linux-mips@xxxxxxxxxxxxxx, openrisc@xxxxxxxxxxxxxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx, linux-s390@xxxxxxxxxxxxxxx, linux-sh@xxxxxxxxxxxxxxx, sparclinux@xxxxxxxxxxxxxxx, linux-xtensa@xxxxxxxxxxxxxxxx, dmaengine@xxxxxxxxxxxxxxx, linux-tegra@xxxxxxxxxxxxxxx, dri-devel@xxxxxxxxxxxxxxxxxxxxx, linux-samsung-soc@xxxxxxxxxxxxxxx, iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx, netdev@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
- In-reply-to: <20170608132609.32662-20-hch@lst.de>
- Organization: IBM Deutschland Research & Development GmbH / Vorsitzende des Aufsichtsrats: Martina Koederitz / Geschaeftsfuehrung: Dirk Wittkopp / Sitz der Gesellschaft: Boeblingen / Registergericht: Amtsgericht Stuttgart, HRB 243294
- References: <20170608132609.32662-1-hch@lst.de> <20170608132609.32662-20-hch@lst.de>
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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