linux-kernel - Re: [PATCH v2 11/14] iommu: Deprecate viommu

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Message-ID: <20250616124948.GA1174925@nvidia.com>
Date: Mon, 16 Jun 2025 09:49:48 -0300
From: Jason Gunthorpe <jgg@...dia.com>
To: Nicolin Chen <nicolinc@...dia.com>
Cc: kevin.tian@...el.com, will@...nel.org, robin.murphy@....com,
	joro@...tes.org, praan@...gle.com, yi.l.liu@...el.com,
	peterz@...radead.org, jsnitsel@...hat.com,
	linux-arm-kernel@...ts.infradead.org, iommu@...ts.linux.dev,
	linux-kernel@...r.kernel.org, patches@...ts.linux.dev,
	baolu.lu@...ux.intel.com
Subject: Re: [PATCH v2 11/14] iommu: Deprecate viommu_alloc op

On Fri, Jun 13, 2025 at 11:35:23PM -0700, Nicolin Chen wrote:
> To ease the for-driver iommufd APIs, get_viommu_size and viommu_init ops
> are introduced. Now, those existing vIOMMU supported drivers implemented
> these two ops, replacing the viommu_alloc one. So, there is no use of it.
> 
> Remove it from the headers and the viommu core.
> 
> Suggested-by: Jason Gunthorpe <jgg@...dia.com>
> Reviewed-by: Kevin Tian <kevin.tian@...el.com>
> Signed-off-by: Nicolin Chen <nicolinc@...dia.com>
> ---
>  include/linux/iommu.h          | 11 -----------
>  include/linux/iommufd.h        | 18 ------------------
>  drivers/iommu/iommufd/viommu.c | 20 +++++---------------
>  3 files changed, 5 insertions(+), 44 deletions(-)

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

Jason