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| author | Bjorn Helgaas <bhelgaas@google.com> | 2013-04-18 15:12:58 -0600 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2013-04-24 11:35:56 -0600 |
| commit | a9047f24df85b06d3fd443ff76e9993bc127c570 (patch) | |
| tree | 25a9cd1957bb67b6bf4f571e3d66a8873838df52 /drivers/vfio | |
| parent | 508d1aa602ef0679a9cfc181ce918fbc4a2b3a45 (diff) | |
| download | linux-stable-a9047f24df85b06d3fd443ff76e9993bc127c570.tar.gz linux-stable-a9047f24df85b06d3fd443ff76e9993bc127c570.tar.bz2 linux-stable-a9047f24df85b06d3fd443ff76e9993bc127c570.zip | |
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>
Diffstat (limited to 'drivers/vfio')
| -rw-r--r-- | drivers/vfio/pci/vfio_pci.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c index 10626e825f41..05afe883f038 100644 --- a/drivers/vfio/pci/vfio_pci.c +++ b/drivers/vfio/pci/vfio_pci.c @@ -70,7 +70,7 @@ static int vfio_pci_enable(struct vfio_pci_device *vdev) pci_write_config_word(pdev, PCI_COMMAND, cmd); } - msix_pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX); + msix_pos = pdev->msix_cap; if (msix_pos) { u16 flags; u32 table; @@ -183,7 +183,7 @@ static int vfio_pci_get_irq_count(struct vfio_pci_device *vdev, int irq_type) u8 pos; u16 flags; - pos = pci_find_capability(vdev->pdev, PCI_CAP_ID_MSI); + pos = vdev->pdev->msi_cap; if (pos) { pci_read_config_word(vdev->pdev, pos + PCI_MSI_FLAGS, &flags); @@ -194,7 +194,7 @@ static int vfio_pci_get_irq_count(struct vfio_pci_device *vdev, int irq_type) u8 pos; u16 flags; - pos = pci_find_capability(vdev->pdev, PCI_CAP_ID_MSIX); + pos = vdev->pdev->msix_cap; if (pos) { pci_read_config_word(vdev->pdev, pos + PCI_MSIX_FLAGS, &flags); |