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iommu/vt-d: Take CONFIG_PCI_ATS into account

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pci_dev::physfn is only available when CONFIG_PCI_ATS is set. The recent
fix for the irqdomain rework missed that dependency which makes the build
fail when CONFIG_PCI_ATS=n.

Add the necessary #ifdeffery.

Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Fixes: ff828729be ("iommu/vt-d: Cure VF irqdomain hickup")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Joerg Roedel <joro@8bytes.org>
This commit is contained in:
Thomas Gleixner 2020-11-16 13:52:47 +01:00
parent 09162bc32c
commit 8986f223bd
1 changed files with 2 additions and 0 deletions
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2
drivers/iommu/intel/dmar.c
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@ -335,7 +335,9 @@ static void dmar_pci_bus_del_dev(struct dmar_pci_notify_info *info)
static inline void vf_inherit_msi_domain(struct pci_dev *pdev)
{
#ifdef CONFIG_PCI_ATS
dev_set_msi_domain(&pdev->dev, dev_get_msi_domain(&pdev->physfn->dev));
#endif
}
static int dmar_pci_bus_notifier(struct notifier_block *nb,