linux-kernel - Re: [PATCH v8 6/6] iommu/tegra-smmu: Add pagetable mappings to debugfs

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Date:   Thu, 9 Dec 2021 17:49:09 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Nicolin Chen <nicolinc@...dia.com>, thierry.reding@...il.com,
        joro@...tes.org, will@...nel.org
Cc:     vdumpa@...dia.com, jonathanh@...dia.com,
        linux-tegra@...r.kernel.org, iommu@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v8 6/6] iommu/tegra-smmu: Add pagetable mappings to
 debugfs

09.12.2021 10:38, Nicolin Chen пишет:
> +static unsigned long pd_pt_index_iova(unsigned int pd_index, unsigned int pt_index)
> +{
> +	return (pd_index & (SMMU_NUM_PDE - 1)) << SMMU_PDE_SHIFT |
> +	       (pt_index & (SMMU_NUM_PTE - 1)) << SMMU_PTE_SHIFT;
> +}

I'd change the return type to u32 here, for consistency.