linux-kernel - RE: [PATCH V10 01/11] iommu/vt-d: Move domain helper to header

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Date:   Fri, 27 Mar 2020 11:48:50 +0000
From:   "Tian, Kevin" <kevin.tian@...el.com>
To:     Jacob Pan <jacob.jun.pan@...ux.intel.com>,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        "iommu@...ts.linux-foundation.org" <iommu@...ts.linux-foundation.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Joerg Roedel <joro@...tes.org>,
        David Woodhouse <dwmw2@...radead.org>,
        "Alex Williamson" <alex.williamson@...hat.com>,
        Jean-Philippe Brucker <jean-philippe@...aro.com>
CC:     "Liu, Yi L" <yi.l.liu@...el.com>,
        "Raj, Ashok" <ashok.raj@...el.com>,
        Christoph Hellwig <hch@...radead.org>,
        Jonathan Cameron <jic23@...nel.org>,
        Eric Auger <eric.auger@...hat.com>
Subject: RE: [PATCH V10 01/11] iommu/vt-d: Move domain helper to header

> From: Jacob Pan <jacob.jun.pan@...ux.intel.com>
> Sent: Saturday, March 21, 2020 7:28 AM
> 
> Move domain helper to header to be used by SVA code.
> 
> Signed-off-by: Jacob Pan <jacob.jun.pan@...ux.intel.com>
> Reviewed-by: Eric Auger <eric.auger@...hat.com>
> ---
>  drivers/iommu/intel-iommu.c | 6 ------
>  include/linux/intel-iommu.h | 6 ++++++
>  2 files changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
> index 4be549478691..e599b2537b1c 100644
> --- a/drivers/iommu/intel-iommu.c
> +++ b/drivers/iommu/intel-iommu.c
> @@ -446,12 +446,6 @@ static void init_translation_status(struct
> intel_iommu *iommu)
>  		iommu->flags |= VTD_FLAG_TRANS_PRE_ENABLED;
>  }
> 
> -/* Convert generic 'struct iommu_domain to private struct dmar_domain */
> -static struct dmar_domain *to_dmar_domain(struct iommu_domain *dom)
> -{
> -	return container_of(dom, struct dmar_domain, domain);
> -}
> -
>  static int __init intel_iommu_setup(char *str)
>  {
>  	if (!str)
> diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h
> index 980234ae0312..ed7171d2ae1f 100644
> --- a/include/linux/intel-iommu.h
> +++ b/include/linux/intel-iommu.h
> @@ -595,6 +595,12 @@ static inline void __iommu_flush_cache(
>  		clflush_cache_range(addr, size);
>  }
> 
> +/* Convert generic struct iommu_domain to private struct dmar_domain */
> +static inline struct dmar_domain *to_dmar_domain(struct iommu_domain
> *dom)
> +{
> +	return container_of(dom, struct dmar_domain, domain);
> +}
> +
>  /*
>   * 0: readable
>   * 1: writable
> --
> 2.7.4

Reviewed-by: Kevin Tian <kevin.tian@...el.com>