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Cc:     baolu.lu@linux.intel.com, Arvind Sankar <nivedita@alum.mit.edu>,
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Subject: Re: [PATCH] iommu/vt-d: Return the correct dma mask when we are
 bypassing the IOMMU
To:     Christoph Hellwig <hch@lst.de>
References: <20191008143357.GA599223@rani.riverdale.lan>
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From:   Lu Baolu <baolu.lu@linux.intel.com>
Message-ID: <dacd9024-9f62-bba8-9ca5-9edcf2150e30@linux.intel.com>
Date:   Thu, 10 Oct 2019 09:24:15 +0800
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Hi Christoph,

On 10/9/19 2:51 PM, Christoph Hellwig wrote:
> On Wed, Oct 09, 2019 at 10:45:15AM +0800, Lu Baolu wrote:
>> Do you mind explaining why we always return 32 bit here?
> 
> See the comment in dma_get_required_mask().
> 

Got it. Thank you.

Best regards,
Baolu