From: Robin Murphy <robin.murphy@arm.com>
To: Greg KH <gregkh@linuxfoundation.org>, Jon Hunter <jonathanh@nvidia.com>
Cc: stable@vger.kernel.org, Charan Teja Kalla <quic_charante@quicinc.com>
Subject: Re: [PATCH v3 6.6] iommu: Handle race with default domain setup
Date: Thu, 1 May 2025 11:34:42 +0100 [thread overview]
Message-ID: <2cad04c2-0c4d-4f05-ad3b-23d82ae42a13@arm.com> (raw)
In-Reply-To: <2025050141-coagulant-flail-8060@gregkh>
On 2025-05-01 8:46 am, Greg KH wrote:
[...]
>> Great, all now queued up.
>
> And now there's reports it is causing problems in the 6.6-stable queue:
> https://lore.kernel.org/r/1903a129-6e06-47d9-862b-ab23f72a9fea@nvidia.com
> so I'm going to drop it from the 6.6.y tree now, sorry.
>
> Can you work with Jon to to get this figured out?
Oh fiddle... Jon, are you able to test if adding c8cc2655cc6c
("iommu/tegra-smmu: Implement an IDENTITY domain") makes it work OK? It
cherry-picks cleanly, and I reckon it's just about small enough to be
reasonable to take as a dependency. Indeed I had forgotten the subtlety
of Tegra being the one driver which is used with CONFIG_IOMMU_DMA but
still didn't support default domains at that point...
Thanks
Robin,
prev parent reply other threads:[~2025-05-01 10:34 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-29 10:47 [PATCH v3 6.6] iommu: Handle race with default domain setup Robin Murphy
2025-04-29 13:00 ` Greg KH
2025-04-29 13:07 ` Robin Murphy
2025-04-29 14:22 ` Greg KH
2025-05-01 7:46 ` Greg KH
2025-05-01 10:34 ` Robin Murphy [this message]
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