linux-kernel - Re: [PATCH 4/7] iommu/vt-d: Remove domain_update_iommu

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Message-ID: <20241011163012.GM762027@ziepe.ca>
Date: Fri, 11 Oct 2024 13:30:12 -0300
From: Jason Gunthorpe <jgg@...pe.ca>
To: Lu Baolu <baolu.lu@...ux.intel.com>
Cc: iommu@...ts.linux.dev, Joerg Roedel <joro@...tes.org>,
	Will Deacon <will@...nel.org>, Robin Murphy <robin.murphy@....com>,
	Kevin Tian <kevin.tian@...el.com>, Yi Liu <yi.l.liu@...el.com>,
	Vasant Hegde <vasant.hegde@....com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/7] iommu/vt-d: Remove domain_update_iommu_cap()

On Fri, Oct 11, 2024 at 12:27:19PM +0800, Lu Baolu wrote:
> The attributes of a paging domain are initialized during the allocation
> process, and any attempt to attach a domain that is not compatible will
> result in a failure. Therefore, there is no need to update the domain
> attributes at the time of domain attachment.
> 
> Signed-off-by: Lu Baolu <baolu.lu@...ux.intel.com>
> ---
>  drivers/iommu/intel/iommu.h |  1 -
>  drivers/iommu/intel/iommu.c | 83 -------------------------------------
>  2 files changed, 84 deletions(-)

Reviewed-by: Jason Gunthorpe <jgg@...dia.com>

Jason