linux-kernel - Re: [PATCH v2] iommu/tegra-smmu: Add pagetable mappings to debugfs

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Message-ID: <abcedfa6-fbad-b34d-fba1-d3a778fbf5b4@gmail.com>
Date:   Thu, 11 Mar 2021 17:04:06 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Nicolin Chen <nicoleotsuka@...il.com>, joro@...tes.org,
        thierry.reding@...il.com, 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 v2] iommu/tegra-smmu: Add pagetable mappings to debugfs

10.03.2021 06:36, Nicolin Chen пишет:
...
> +static int tegra_smmu_mappings_show(struct seq_file *s, void *data)
> +{
> +	struct tegra_smmu_group_debug *group_debug = s->private;
> +	const struct tegra_smmu_swgroup *group;
> +	struct tegra_smmu_as *as;
> +	struct tegra_smmu *smmu;
> +	int pd_index, pt_index;

> +DEFINE_SHOW_ATTRIBUTE(tegra_smmu_mappings);
> +
>  static void tegra_smmu_debugfs_init(struct tegra_smmu *smmu)
>  {
> +	const struct tegra_smmu_soc *soc = smmu->soc;
> +	struct tegra_smmu_group_debug *group_debug;
> +	struct device *dev = smmu->dev;
> +	struct dentry *d;
> +	int i;

You should use unsigned types for everything that isn't signed.