linux-kernel - Re: [PATCH v1 2/7] iommu/arm-smmu-v3: Replace s1_cfg with ctx_desc

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Message-ID: <CAKHBV252e5Cx1nssFTPVBmr_iGqLhvp1jjBfR5euRynAzHC12w@mail.gmail.com>
Date:   Fri, 28 Jul 2023 15:47:45 +0800
From:   Michael Shavit <mshavit@...gle.com>
To:     Nicolin Chen <nicolinc@...dia.com>
Cc:     Will Deacon <will@...nel.org>, Robin Murphy <robin.murphy@....com>,
        Joerg Roedel <joro@...tes.org>, jean-philippe@...aro.org,
        jgg@...dia.com, baolu.lu@...ux.intel.com,
        linux-arm-kernel@...ts.infradead.org, iommu@...ts.linux.dev,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 2/7] iommu/arm-smmu-v3: Replace s1_cfg with ctx_desc_cfg

On Fri, Jul 28, 2023 at 4:57 AM Nicolin Chen <nicolinc@...dia.com> wrote:

> It'd be nicer to align all the variables to "cd_table" like the
> 2nd piece here. And if we rename the struct name too:
>
>         struct arm_smmu_cdtab_cfg *cd_table = xxxx;

I agree that renaming these would be nice. There's 36 usages of cdcfg
in arm-smmu-v3.c, and 6 usages of  arm_smmu_ctx_desc_cfg.
I can rename the struct since we'll be touching many of those in this
patch anyways, but I'm a bit concerned of the churn from updating all
the cdcfg usages.

> Though "s1fmt" is redundant, "max_cds_bits" doesn't seem to be.
>
> It'd be nicer to separate them in the commit message to why we
> remove s1fmt and why we rename s1cdmax.

Will fix!