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-rw-r--r--arch/x86/kernel/amd_iommu.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index dec10e1..8c3deb0 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -664,7 +664,7 @@ static int get_device_resources(struct device *dev,
BUG_ON(!dev || dev->bus != &pci_bus_type || !dev->dma_mask);
pcidev = to_pci_dev(dev);
- _bdf = (pcidev->bus->number << 8) | pcidev->devfn;
+ _bdf = calc_devid(pcidev->bus->number, pcidev->devfn);
/* device not translated by any IOMMU in the system? */
if (_bdf >= amd_iommu_last_bdf) {