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Message-ID: <4394654c47c4fcc2dc389cd916590bd643d18def.camel@linux.ibm.com>
Date:   Tue, 29 Aug 2023 16:18:39 +0200
From:   Niklas Schnelle <schnelle@...ux.ibm.com>
To:     Tina Zhang <tina.zhang@...el.com>, Jason Gunthorpe <jgg@...pe.ca>,
        Kevin Tian <kevin.tian@...el.com>,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        Michael Shavit <mshavit@...gle.com>
Cc:     iommu@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 5/5] mm: Deprecate pasid field

On Sun, 2023-08-27 at 16:44 +0800, Tina Zhang wrote:
> Drop the pasid field, as all the information needed for sva domain
> management has been moved to the newly added iommu_mm field.

I think it should say "Drop" instead of "Deprecate" in the subject line
as well since this is field is completely removed.

> 
> Signed-off-by: Tina Zhang <tina.zhang@...el.com>
> ---
>  include/linux/mm_types.h | 1 -
>  mm/init-mm.c             | 3 ---
>  2 files changed, 4 deletions(-)
> 
> diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
> index 3fd65b7537f0e..6cb5cc53c4803 100644
> --- a/include/linux/mm_types.h
> +++ b/include/linux/mm_types.h
> @@ -808,7 +808,6 @@ struct mm_struct {
>  		struct work_struct async_put_work;
>  
>  #ifdef CONFIG_IOMMU_SVA
> -		u32 pasid;
>  		struct iommu_mm_data *iommu_mm;
>  #endif
>  #ifdef CONFIG_KSM
> diff --git a/mm/init-mm.c b/mm/init-mm.c
> index efa97b57acfd8..69719291463ed 100644
> --- a/mm/init-mm.c
> +++ b/mm/init-mm.c
> @@ -42,9 +42,6 @@ struct mm_struct init_mm = {
>  #endif
>  	.user_ns	= &init_user_ns,
>  	.cpu_bitmap	= CPU_BITS_NONE,
> -#ifdef CONFIG_IOMMU_SVA
> -	.pasid		= IOMMU_PASID_INVALID,
> -#endif
>  	INIT_MM_CONTEXT(init_mm)
>  };
>  

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