linux-kernel - Re: [PATCH v2 3/3] iommu/tegra-smmu: Add PCI support

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Message-ID: <5a91f07c-bc27-7607-915c-e98a7a0c4b24@gmail.com>
Date:   Wed, 30 Sep 2020 08:10:35 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Nicolin Chen <nicoleotsuka@...il.com>, thierry.reding@...il.com,
        joro@...tes.org, krzk@...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 3/3] iommu/tegra-smmu: Add PCI support

30.09.2020 03:30, Nicolin Chen пишет:
>  void tegra_smmu_remove(struct tegra_smmu *smmu)
>  {
> +	bus_set_iommu(&platform_bus_type, NULL);

Why only platform_bus? Is this really needed at all?

>  	iommu_device_unregister(&smmu->iommu);
>  	iommu_device_sysfs_remove(&smmu->iommu);