Am 20.08.19 um 03:24 schrieb Christoph Hellwig:
> Hi Stefan,
>
> please try the patch below.
>
> ---
> From e0570628d96faa50ebfc94ce8e545968336db225 Mon Sep 17 00:00:00 2001
> From: Christoph Hellwig <[email protected]>
> Date: Tue, 20 Aug 2019 10:08:38 +0900
> Subject: arm: select the dma-noncoherent symbols for all swiotlb builds
>
> We need to provide the arch hooks for non-coherent dma-direct
> and swiotlb for all swiotlb builds, not just when LPAS is enabled.
> Without that the Xen build that selects SWIOTLB indirectly through
> SWIOTLB_XEN fails to build.
>
> Fixes: ad3c7b18c5b3 ("arm: use swiotlb for bounce buffering on LPAE configs")
> Reported-by: Stefan Wahren <[email protected]>
> Signed-off-by: Christoph Hellwig <[email protected]>
Tested-by: Stefan Wahren <[email protected]>
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