PCI: Add VPD function 0 quirk for Intel Ethernet devices

Set the PCI_DEV_FLAGS_VPD_REF_F0 flag on all Intel Ethernet device
functions other than function 0, so that on multi-function devices, we will
always read VPD from function 0 instead of from the other functions.

[bhelgaas: changelog]
Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Alexander Duyck <alexander.h.duyck@redhat.com>
CC: stable@vger.kernel.org

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 96b354814cb7c80ed3c29f27bbb68b00c8dc944c..b6af4b0192b8c8c99de581f3f1c5cd413d90b76c 100644 (file)
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -1895,6 +1895,15 @@ static void quirk_netmos(struct pci_dev *dev)
 DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID,
                         PCI_CLASS_COMMUNICATION_SERIAL, 8, quirk_netmos);
 
+static void quirk_f0_vpd_link(struct pci_dev *dev)
+{
+       if (!dev->multifunction || !PCI_FUNC(dev->devfn))
+               return;
+       dev->dev_flags |= PCI_DEV_FLAGS_VPD_REF_F0;
+}
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, PCI_ANY_ID,
+                             PCI_CLASS_NETWORK_ETHERNET, 8, quirk_f0_vpd_link);
+
 static void quirk_e100_interrupt(struct pci_dev *dev)
 {
        u16 command, pmcsr;