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iommu/arm-smmu-v3: Fix build error without CONFIG_PCI_ATS

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If CONFIG_PCI_ATS is not set, building fails:

drivers/iommu/arm-smmu-v3.c: In function arm_smmu_ats_supported:
drivers/iommu/arm-smmu-v3.c:2325:35: error: struct pci_dev has no member named ats_cap; did you mean msi_cap?
  return !pdev->untrusted && pdev->ats_cap;
                                   ^~~~~~~

ats_cap should only used when CONFIG_PCI_ATS is defined,
so use #ifdef block to guard this.

Fixes: bfff88ec1a ("iommu/arm-smmu-v3: Rework enabling/disabling of ATS for PCI masters")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
YueHaibing 2019-09-03 14:50:56 +08:00 committed by Joerg Roedel
parent dbe8e6a81a
commit 097a7df2e3
1 changed files with 7 additions and 0 deletions
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7
drivers/iommu/arm-smmu-v3.c
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@ -2311,6 +2311,7 @@ static void arm_smmu_install_ste_for_dev(struct arm_smmu_master *master)
}
}
#ifdef CONFIG_PCI_ATS
static bool arm_smmu_ats_supported(struct arm_smmu_master *master)
{
struct pci_dev *pdev;
@ -2324,6 +2325,12 @@ static bool arm_smmu_ats_supported(struct arm_smmu_master *master)
pdev = to_pci_dev(master->dev);
return !pdev->untrusted && pdev->ats_cap;
}
#else
static bool arm_smmu_ats_supported(struct arm_smmu_master *master)
{
return false;
}
#endif
static void arm_smmu_enable_ats(struct arm_smmu_master *master)
{