Bjorn Helgaas
2013-Apr-24 16:35 UTC
Re: [PATCH v4 20/22] xen/pci: Used cached MSI-X capability offset
[+cc Jeremy, xen-devel] On Mon, Apr 22, 2013 at 5:12 PM, Bjorn Helgaas <bhelgaas@google.com> wrote:> 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@google.com> > CC: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> > --- > 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); >