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Re: [Xen-devel] [PATCH 0/4] dma-mapping: Constify dma_attrs

To: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Tue, 24 May 2016 02:09:38 -0700
Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>, Catalin Marinas <catalin.marinas@xxxxxxx>, Joerg Roedel <joro@xxxxxxxxxx>, Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx>, Will Deacon <will.deacon@xxxxxxx>, Russell King <linux@xxxxxxxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
Delivery-date: Tue, 24 May 2016 09:10:05 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>

I think this is moving into the wrong direction.  The right fix here
is to get of all the dma_attrs boilerplate code and just replace it
with a simple enum dma_flags.  This would simplify both the callers
and most importantly the wrappers for the flag-less versions a lot.

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  - From: Krzysztof Kozlowski

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