linux-kernel - Re: [PATCH v1 11/14] iommu/arm-smmu-v3: Add arm_smmu_domain_alloc

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Date:   Fri, 24 Mar 2023 10:43:26 -0700
From:   Nicolin Chen <nicolinc@...dia.com>
To:     Eric Auger <eric.auger@...hat.com>
CC:     <jgg@...dia.com>, <robin.murphy@....com>, <will@...nel.org>,
        <kevin.tian@...el.com>, <baolu.lu@...ux.intel.com>,
        <joro@...tes.org>, <shameerali.kolothum.thodi@...wei.com>,
        <jean-philippe@...aro.org>, <linux-arm-kernel@...ts.infradead.org>,
        <iommu@...ts.linux.dev>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v1 11/14] iommu/arm-smmu-v3: Add
 arm_smmu_domain_alloc_user

On Fri, Mar 24, 2023 at 04:33:31PM +0100, Eric Auger wrote:

> > @@ -2893,10 +2863,75 @@ static void arm_smmu_remove_dev_pasid(struct device *dev, ioasid_t pasid)
> >       arm_smmu_sva_remove_dev_pasid(domain, dev, pasid);
> >  }
> >
> > +static struct iommu_domain *
> > +__arm_smmu_domain_alloc(unsigned type,
> > +                     struct arm_smmu_domain *s2,
> I think you should rather introduce s2 param in "iommu/arm-smmu-v3:
> Support IOMMU_DOMAIN_NESTED type of allocations" because it is not use
> at all in this patch nor really explained in the commit msg

OK. I will move it.

Thanks!
Nicolin