linux-kernel - Re: [PATCH 1/1] iommu/vt-d: Remove iommu cap audit

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Message-ID: <bcf70c0d-ea12-4149-ba9a-2001df95186b@linux.intel.com>
Date: Thu, 2 Jan 2025 11:13:01 +0800
From: Baolu Lu <baolu.lu@...ux.intel.com>
To: Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
 Robin Murphy <robin.murphy@....com>, Kevin Tian <kevin.tian@...el.com>,
 Jason Gunthorpe <jgg@...pe.ca>, Yi Liu <yi.l.liu@...el.com>
Cc: iommu@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] iommu/vt-d: Remove iommu cap audit

On 12/16/24 15:18, Lu Baolu wrote:
> The capability audit code was introduced by commit <ad3d19029979>
> "iommu/vt-d: Audit IOMMU Capabilities and add helper functions", aiming
> to verify the consistency of capabilities across all IOMMUs for supported
> features.
> 
> Nowadays, all the kAPIs of the iommu subsystem have evolved to be device
> oriented, in preparation for supporting heterogeneous IOMMU architectures.
> There is no longer a need to require capability consistence among IOMMUs
> for any feature.
> 
> Remove the iommu cap audit code to make the driver align with the design
> in the iommu core.
> 
> Signed-off-by: Lu Baolu<baolu.lu@...ux.intel.com>
> ---
>   drivers/iommu/intel/Makefile        |   2 +-
>   drivers/iommu/intel/cap_audit.c     | 217 ----------------------------
>   drivers/iommu/intel/cap_audit.h     | 131 -----------------
>   drivers/iommu/intel/iommu.c         |   9 --
>   drivers/iommu/intel/irq_remapping.c |   8 -
>   5 files changed, 1 insertion(+), 366 deletions(-)
>   delete mode 100644 drivers/iommu/intel/cap_audit.c
>   delete mode 100644 drivers/iommu/intel/cap_audit.h

Queued for v6.14.