linux-kernel - Re: [PATCH v2] iommu/dma: Rationalise types for DMA masks

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Date:   Wed, 11 Dec 2019 20:12:54 +0100
From:   Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
To:     Robin Murphy <robin.murphy@....com>, joro@...tes.org, hch@....de
Cc:     iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        stephan@...hold.net, natechancellor@...il.com, arnd@...db.de
Subject: Re: [PATCH v2] iommu/dma: Rationalise types for DMA masks

On Wed, 2019-12-11 at 18:33 +0000, Robin Murphy wrote:
> Since iommu_dma_alloc_iova() combines incoming masks with the u64 bus
> limit, it makes more sense to pass them around in their native u64
> rather than converting to dma_addr_t early. Do that, and resolve the
> remaining type discrepancy against the domain geometry with a cheeky
> cast to keep things simple.
> 
> Signed-off-by: Robin Murphy <robin.murphy@....com>

Thanks!

Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@...e.de>


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