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Date: Tue, 30 Apr 2024 11:24:08 -0300
From: Jason Gunthorpe <jgg@...dia.com>
To: Nicolin Chen <nicolinc@...dia.com>
Cc: 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
Subject: Re: [PATCH v6 3/6] iommu/arm-smmu-v3: Make arm_smmu_cmdq_init
 reusable

On Mon, Apr 29, 2024 at 09:43:46PM -0700, Nicolin Chen wrote:
> The CMDQV extension in NVIDIA Tegra241 SoC resues the arm_smmu_cmdq
> structure while the queue location isn't same as smmu->cmdq.
> 
> Add a cmdq argument to arm_smmu_cmdq_init() function and shares its
> define in the header for CMDQV driver to use.
> 
> Signed-off-by: Nicolin Chen <nicolinc@...dia.com>
> ---
>  drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 6 +++---
>  drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 3 +++
>  2 files changed, 6 insertions(+), 3 deletions(-)

I would squash this patch and the next together:

iommu/arm-smm-v3: Make symbols public

The symbols arm_smmu_cmdq_init() and __arm_smmu_cmdq_skip_err() need
to be used by the tegra241-cmdqv.c compilation unit in the next
patch. Remove the static and put prototypes in the header.

But the code is fine

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

Jason

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