[PATCH v4 20/22] xen/pci: Used cached MSI-X capability offset

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We now cache the MSI-X capability offset in the struct pci_dev, so no
need to find the capability again.

Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
CC: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
---
 arch/x86/pci/xen.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c
index b9d1ff2..7b521ef 100644
--- a/arch/x86/pci/xen.c
+++ b/arch/x86/pci/xen.c
@@ -295,8 +295,7 @@ static int xen_initdom_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
 			int pos;
 			u32 table_offset, bir;
 
-			pos = pci_find_capability(dev, PCI_CAP_ID_MSIX);
-
+			pos = dev->msix_cap;
 			pci_read_config_dword(dev, pos + PCI_MSIX_TABLE,
 					      &table_offset);
 			bir = (u8)(table_offset & PCI_MSIX_TABLE_BIR);

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