Re: [PATCH v2 7/7] iommu: Remove ops->pgsize_bitmap

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To: Jason Gunthorpe <jgg@xxxxxxxxxx>
Subject: Re: [PATCH v2 7/7] iommu: Remove ops->pgsize_bitmap
From: Joerg Roedel <joro@xxxxxxxxxx>
Date: Fri, 27 Jun 2025 10:28:28 +0200
Cc: Alexandre Ghiti <alex@xxxxxxxx>, Alim Akhtar <alim.akhtar@xxxxxxxxxxx>, Alyssa Rosenzweig <alyssa@xxxxxxxxxxxxx>, AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>, Albert Ou <aou@xxxxxxxxxxxxxxxxx>, asahi@xxxxxxxxxxxxxxx, Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>, David Woodhouse <dwmw2@xxxxxxxxxxxxx>, Gerald Schaefer <gerald.schaefer@xxxxxxxxxxxxx>, Heiko Stuebner <heiko@xxxxxxxxx>, iommu@xxxxxxxxxxxxxxx, Janne Grunau <j@xxxxxxxxxx>, Jean-Philippe Brucker <jean-philippe@xxxxxxxxxx>, Jernej Skrabec <jernej.skrabec@xxxxxxxxx>, Jonathan Hunter <jonathanh@xxxxxxxxxx>, Krzysztof Kozlowski <krzk@xxxxxxxxxx>, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, linux-arm-msm@xxxxxxxxxxxxxxx, linux-mediatek@xxxxxxxxxxxxxxxxxxx, linux-riscv@xxxxxxxxxxxxxxxxxxx, linux-rockchip@xxxxxxxxxxxxxxxxxxx, linux-s390@xxxxxxxxxxxxxxx, linux-samsung-soc@xxxxxxxxxxxxxxx, linux-sunxi@xxxxxxxxxxxxxxx, linux-tegra@xxxxxxxxxxxxxxx, Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>, Matthias Brugger <matthias.bgg@xxxxxxxxx>, Matthew Rosato <mjrosato@xxxxxxxxxxxxx>, Neal Gompa <neal@xxxxxxxxx>, Orson Zhai <orsonzhai@xxxxxxxxx>, Palmer Dabbelt <palmer@xxxxxxxxxxx>, Paul Walmsley <paul.walmsley@xxxxxxxxxx>, Rob Clark <robin.clark@xxxxxxxxxxxxxxxx>, Robin Murphy <robin.murphy@xxxxxxx>, Samuel Holland <samuel@xxxxxxxxxxxx>, Sven Peter <sven@xxxxxxxxxx>, Thierry Reding <thierry.reding@xxxxxxxxx>, Krishna Reddy <vdumpa@xxxxxxxxxx>, virtualization@xxxxxxxxxxxxxxx, Chen-Yu Tsai <wens@xxxxxxxx>, Will Deacon <will@xxxxxxxxxx>, Yong Wu <yong.wu@xxxxxxxxxxxx>, Chunyan Zhang <zhang.lyra@xxxxxxxxx>, Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>, Kevin Tian <kevin.tian@xxxxxxxxx>, patches@xxxxxxxxxxxxxxx, Niklas Schnelle <schnelle@xxxxxxxxxxxxx>, Sven Peter <sven@xxxxxxxxxxxxx>, Tomasz Jeznach <tjeznach@xxxxxxxxxxxx>
In-reply-to: <7-v2-68a2e1ba507c+1fb-iommu_rm_ops_pgsize_jgg@nvidia.com>
References: <0-v2-68a2e1ba507c+1fb-iommu_rm_ops_pgsize_jgg@nvidia.com> <7-v2-68a2e1ba507c+1fb-iommu_rm_ops_pgsize_jgg@nvidia.com>

Hi Jason,

On Mon, Jun 09, 2025 at 05:41:31PM -0300, Jason Gunthorpe wrote:
> No driver uses it now, remove the core code.

That is actually not true, the MSM driver still uses it, and this patch breaks
my arm32 compile tests. Please send a fix for this driver so that I can put it
on-top.

Regards,

	Joerg

Follow-Ups:
- Re: [PATCH v2 7/7] iommu: Remove ops->pgsize_bitmap
  - From: Jason Gunthorpe

References:
- [PATCH v2 0/7] Remove ops.pgsize_bitmap
  - From: Jason Gunthorpe
- [PATCH v2 7/7] iommu: Remove ops->pgsize_bitmap
  - From: Jason Gunthorpe

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