linux-kernel - Re: [PATCH 2/2] iommu/vt-d: Replace intel SVM APIs with generic SVA APIs

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Message-ID: <20200225191034.GA29045@infradead.org>
Date:   Tue, 25 Feb 2020 11:10:34 -0800
From:   Christoph Hellwig <hch@...radead.org>
To:     Jacob Pan <jacob.jun.pan@...ux.intel.com>
Cc:     iommu@...ts.linux-foundation.org,
        LKML <linux-kernel@...r.kernel.org>,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        Joerg Roedel <joro@...tes.org>,
        David Woodhouse <dwmw2@...radead.org>,
        "Tian, Kevin" <kevin.tian@...el.com>,
        Dave Jiang <dave.jiang@...el.com>,
        Raj Ashok <ashok.raj@...el.com>,
        Jean-Philippe Brucker <jean-philippe@...aro.com>
Subject: Re: [PATCH 2/2] iommu/vt-d: Replace intel SVM APIs with generic SVA
 APIs

On Mon, Feb 24, 2020 at 03:26:37PM -0800, Jacob Pan wrote:
> This patch is an initial step to replace Intel SVM code with the
> following IOMMU SVA ops:
> intel_svm_bind_mm() => iommu_sva_bind_device()
> intel_svm_unbind_mm() => iommu_sva_unbind_device()
> intel_svm_is_pasid_valid() => iommu_sva_get_pasid()

How did either set APIs end up being added to the kernel without users
to start with?

Please remove both the old intel and the iommu ones given that neither
has any users.