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SubjectRe: "Rework enabling/disabling of ATS for PCI masters" failed to compile on arm64
On Mon, Sep 02, 2019 at 10:10:30PM -0400, Qian Cai wrote:
> The linux-next commit “iommu/arm-smmu-v3: Rework enabling/disabling of ATS for PCI masters” [1] causes a compilation error when PCI_ATS=n on arm64.
>
> [1] https://lore.kernel.org/linux-iommu/20190820154549.17018-3-will@kernel.org/
>
> drivers/iommu/arm-smmu-v3.c:2325:35: error: no member named 'ats_cap' in 'struct pci_dev'
> return !pdev->untrusted && pdev->ats_cap;
> ~~~~ ^
>
> For example,
>
> Symbol: PCI_ATS [=n]
> │ Type : bool
> │ Defined at drivers/pci/Kconfig:118
> │ Depends on: PCI [=y]
> │ Selected by [n]:
> │ - PCI_IOV [=n] && PCI [=y]
> │ - PCI_PRI [=n] && PCI [=y]│
> │ - PCI_PASID [=n] && PCI [=y] │
> │ - AMD_IOMMU [=n] && IOMMU_SUPPORT [=y] && X86_64 && PCI [=y] && ACPI [=y]

https://lkml.kernel.org/r/20190903063028.6ryuk5dmaohi2fqa@willie-the-truck

Will

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