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vfio-pci: Use cached MSI/MSI-X capabilities
We now cache the MSI/MSI-X capability offsets in the struct pci_dev, so no need to find the capabilities again. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Alex Williamson <alex.williamson@redhat.com>
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parent
508d1aa602
commit
a9047f24df
1 changed files with 3 additions and 3 deletions
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@ -70,7 +70,7 @@ static int vfio_pci_enable(struct vfio_pci_device *vdev)
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pci_write_config_word(pdev, PCI_COMMAND, cmd);
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}
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msix_pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
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msix_pos = pdev->msix_cap;
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if (msix_pos) {
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u16 flags;
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u32 table;
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@ -183,7 +183,7 @@ static int vfio_pci_get_irq_count(struct vfio_pci_device *vdev, int irq_type)
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u8 pos;
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u16 flags;
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pos = pci_find_capability(vdev->pdev, PCI_CAP_ID_MSI);
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pos = vdev->pdev->msi_cap;
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if (pos) {
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pci_read_config_word(vdev->pdev,
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pos + PCI_MSI_FLAGS, &flags);
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@ -194,7 +194,7 @@ static int vfio_pci_get_irq_count(struct vfio_pci_device *vdev, int irq_type)
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u8 pos;
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u16 flags;
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pos = pci_find_capability(vdev->pdev, PCI_CAP_ID_MSIX);
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pos = vdev->pdev->msix_cap;
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if (pos) {
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pci_read_config_word(vdev->pdev,
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pos + PCI_MSIX_FLAGS, &flags);
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