linux-kernel - Re: [PATCH v4 4/7] iommu: Pass in old domain to attach

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <aNREE5qMJRU+0+Bw@Asurada-Nvidia>
Date: Wed, 24 Sep 2025 12:18:43 -0700
From: Nicolin Chen <nicolinc@...dia.com>
To: Jason Gunthorpe <jgg@...dia.com>
CC: <joro@...tes.org>, <bhelgaas@...gle.com>, <suravee.suthikulpanit@....com>,
	<will@...nel.org>, <robin.murphy@....com>, <sven@...nel.org>, <j@...nau.net>,
	<alyssa@...enzweig.io>, <neal@...pa.dev>, <robin.clark@....qualcomm.com>,
	<m.szyprowski@...sung.com>, <krzk@...nel.org>, <alim.akhtar@...sung.com>,
	<dwmw2@...radead.org>, <baolu.lu@...ux.intel.com>, <kevin.tian@...el.com>,
	<yong.wu@...iatek.com>, <matthias.bgg@...il.com>,
	<angelogioacchino.delregno@...labora.com>, <tjeznach@...osinc.com>,
	<paul.walmsley@...ive.com>, <palmer@...belt.com>, <aou@...s.berkeley.edu>,
	<alex@...ti.fr>, <heiko@...ech.de>, <schnelle@...ux.ibm.com>,
	<mjrosato@...ux.ibm.com>, <gerald.schaefer@...ux.ibm.com>,
	<orsonzhai@...il.com>, <baolin.wang@...ux.alibaba.com>,
	<zhang.lyra@...il.com>, <wens@...e.org>, <jernej.skrabec@...il.com>,
	<samuel@...lland.org>, <jean-philippe@...aro.org>, <rafael@...nel.org>,
	<lenb@...nel.org>, <yi.l.liu@...el.com>, <cwabbott0@...il.com>,
	<quic_pbrahma@...cinc.com>, <iommu@...ts.linux.dev>,
	<linux-kernel@...r.kernel.org>, <asahi@...ts.linux.dev>,
	<linux-arm-kernel@...ts.infradead.org>, <linux-arm-msm@...r.kernel.org>,
	<linux-samsung-soc@...r.kernel.org>, <linux-mediatek@...ts.infradead.org>,
	<linux-riscv@...ts.infradead.org>, <linux-rockchip@...ts.infradead.org>,
	<linux-s390@...r.kernel.org>, <linux-sunxi@...ts.linux.dev>,
	<linux-tegra@...r.kernel.org>, <virtualization@...ts.linux.dev>,
	<linux-acpi@...r.kernel.org>, <linux-pci@...r.kernel.org>,
	<patches@...ts.linux.dev>, <vsethi@...dia.com>, <helgaas@...nel.org>,
	<etzhao1900@...il.com>
Subject: Re: [PATCH v4 4/7] iommu: Pass in old domain to attach_dev callback
 functions

On Wed, Sep 24, 2025 at 03:43:46PM -0300, Jason Gunthorpe wrote:
> I've split things like this into more patches before, but this
> actually isn't too bad, so I wouldn't push for it.

Thanks. I will keep the flow in mind.

For working more on the new test attach op, I'd probably keep it
as-is.

> A series version would be:
>  - add a new op 'attach_dev2' or whatever
>  - Convert all drivers that just change the signature
>  - Convert drivers that have a trivial iommu_get_domain_for_dev()
>  - N patches to convert more complex drivers one by one
>  - Remove old op attach_dev

Does this mean that drivers would live with the 'attach_dev2' op
renamed from 'attach_dev'? Or the last could rename it back?

Nicolin