Re: [PATCH 19/44] s390: implement ->mapping_error

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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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