Re: [PATCH v2 2/3] iommu/tegra-smmu: Rework .probe_device and .attach_dev

[Dmitry Osipenko <digetx@xxxxxxxxx>]

30.09.2020 03:30, Nicolin Chen пишет:
> +	/*
> +	 * IOMMU core allows -ENODEV return to carry on. So bypass any call
> +	 * from bus_set_iommu() during tegra_smmu_probe(), as a device will
> +	 * call in again via of_iommu_configure when fwspec is prepared.
> +	 */
> +	if (!mc->smmu || !fwspec || fwspec->ops != &tegra_smmu_ops)
>  		return ERR_PTR(-ENODEV);

The !mc->smmu can't be true.