Re: [PATCH v2 3/3] iommu/tegra-smmu: Add PCI support
From: Dmitry Osipenko
Date: Wed Sep 30 2020 - 01:10:07 EST
30.09.2020 03:30, Nicolin Chen пишет:
...
> +#ifdef CONFIG_PCI
> + if (!iommu_present(&pci_bus_type)) {
Could you please explain why this check is needed?