linux-kernel - Re: [PATCH v6 3/7] iommu/sva: Remove PASID to mm lookup function

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Message-ID: <c2607062-9fd1-ae66-7b2a-b1e09ff754c7@linux.intel.com>
Date:   Tue, 14 Mar 2023 10:08:00 +0800
From:   Baolu Lu <baolu.lu@...ux.intel.com>
To:     Jacob Pan <jacob.jun.pan@...ux.intel.com>,
        LKML <linux-kernel@...r.kernel.org>, iommu@...ts.linux.dev,
        Jason Gunthorpe <jgg@...dia.com>,
        Joerg Roedel <joro@...tes.org>,
        Jean-Philippe Brucker <jean-philippe@...aro.com>,
        Robin Murphy <robin.murphy@....com>,
        Dave Hansen <dave.hansen@...el.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        X86 Kernel <x86@...nel.org>, bp@...en8.de,
        "H. Peter Anvin" <hpa@...or.com>,
        Peter Zijlstra <peterz@...radead.org>, corbet@....net,
        vkoul@...nel.org, dmaengine@...r.kernel.org,
        linux-doc@...r.kernel.org
Cc:     baolu.lu@...ux.intel.com, Will Deacon <will@...nel.org>,
        David Woodhouse <dwmw2@...radead.org>,
        Raj Ashok <ashok.raj@...el.com>,
        "Tian, Kevin" <kevin.tian@...el.com>, Yi Liu <yi.l.liu@...el.com>,
        "Yu, Fenghua" <fenghua.yu@...el.com>,
        Dave Jiang <dave.jiang@...el.com>,
        Kirill Shutemov <kirill.shutemov@...ux.intel.com>,
        Tony Luck <tony.luck@...el.com>
Subject: Re: [PATCH v6 3/7] iommu/sva: Remove PASID to mm lookup function

On 3/14/23 4:41 AM, Jacob Pan wrote:
> There is no user of iommu_sva_find() function, remove it so that PASID
> allocator can be a simple IDA. Device drivers are expected to store
> and keep track of their own PASID metadata.
> 
> Signed-off-by: Jason Gunthorpe<jgg@...dia.com>
> Signed-off-by: Jacob Pan<jacob.jun.pan@...ux.intel.com>

Reviewed-by: Lu Baolu <baolu.lu@...ux.intel.com>

Best regards,
baolu