linux-kernel - Re: [PATCH rc] iommu/tegra241-cmdqv: Fix alignment failure at max_n

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Message-Id: <173142418330.1973910.1191259071038387348.b4-ty@kernel.org>
Date: Tue, 12 Nov 2024 16:56:50 +0000
From: Will Deacon <will@...nel.org>
To: Nicolin Chen <nicolinc@...dia.com>
Cc: catalin.marinas@....com,
	kernel-team@...roid.com,
	Will Deacon <will@...nel.org>,
	robin.murphy@....com,
	joro@...tes.org,
	thierry.reding@...il.com,
	vdumpa@...dia.com,
	jonathanh@...dia.com,
	linux-kernel@...r.kernel.org,
	iommu@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	linux-tegra@...r.kernel.org,
	Jason Gunthorpe <jgg@...pe.ca>
Subject: Re: [PATCH rc] iommu/tegra241-cmdqv: Fix alignment failure at max_n_shift

On Sun, 10 Nov 2024 19:02:26 -0800, Nicolin Chen wrote:
> When configuring a kernel with PAGE_SIZE=4KB, depending on its setting of
> CONFIG_CMA_ALIGNMENT, VCMDQ_LOG2SIZE_MAX=19 could fail the alignment test
> and trigger a WARN_ON:
>     WARNING: at drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c:3646
>     Call trace:
>      arm_smmu_init_one_queue+0x15c/0x210
>      tegra241_cmdqv_init_structures+0x114/0x338
>      arm_smmu_device_probe+0xb48/0x1d90
> 
> [...]

Applied to iommu (arm/smmu), thanks!

[1/1] iommu/tegra241-cmdqv: Fix alignment failure at max_n_shift
      https://git.kernel.org/iommu/c/a3799717b881

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
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