08.12.2021 11:47, Nicolin Chen пишет:
>  static void tegra_smmu_attach_as(struct tegra_smmu *smmu,
>                                struct tegra_smmu_as *as,
>                                unsigned int swgroup)
> @@ -517,6 +646,12 @@ static void tegra_smmu_attach_as(struct tegra_smmu *smmu,
>                       dev_warn(smmu->dev,
>                                "overwriting group->as for swgroup: %s\n", 
> swgrp->name);
>               group->as = as;
> +
> +             if (smmu->debugfs_mappings)
> +                     debugfs_create_file(group->swgrp->name, 0444,
> +                                         smmu->debugfs_mappings, group,
> +                                         &tegra_smmu_debugfs_mappings_fops);

I noticed this in KMSG:

 tegra-mc 7000f000.memory-controller: overwriting group->as for swgroup: g2
 debugfs: File 'g2' in directory 'mappings' already present!
 tegra-mc 7000f000.memory-controller: overwriting group->as for swgroup: g2
 debugfs: File 'g2' in directory 'mappings' already present

Doesn't look okay, please fix.
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