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Date:   Thu, 14 May 2020 08:20:33 -0700
From:   Jacob Pan <jacob.jun.pan@linux.intel.com>
To:     Christoph Hellwig <hch@infradead.org>
Cc:     Lu Baolu <baolu.lu@linux.intel.com>,
        iommu@lists.linux-foundation.org,
        LKML <linux-kernel@vger.kernel.org>,
        Joerg Roedel <joro@8bytes.org>,
        David Woodhouse <dwmw2@infradead.org>,
        Jean-Philippe Brucker <jean-philippe@linaro.com>,
        Eric Auger <eric.auger@redhat.com>,
        Yi Liu <yi.l.liu@intel.com>,
        "Tian, Kevin" <kevin.tian@intel.com>,
        Raj Ashok <ashok.raj@intel.com>,
        Alex Williamson <alex.williamson@redhat.com>,
        Jonathan Cameron <jic23@kernel.org>,
        jacob.jun.pan@linux.intel.com
Subject: Re: [PATCH v13 2/8] iommu/vt-d: Use a helper function to skip agaw
 for SL
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On Wed, 13 May 2020 22:51:32 -0700
Christoph Hellwig <hch@infradead.org> wrote:

> On Wed, May 13, 2020 at 04:01:43PM -0700, Jacob Pan wrote:
> > An Intel iommu domain uses 5-level page table by default. If the
> > iommu that the domain tries to attach supports less page levels,
> > the top level page tables should be skipped. Add a helper to do
> > this so that it could be used in other places.  
> 
> Please use up all 73 chars for the commit log.

Will do. thanks.