[PATCH 4.2 047/120] PCI: Add VPD function 0 quirk for Intel Ethernet devices

From: Greg Kroah-Hartman
Date: Sat Sep 19 2015 - 13:41:51 EST


4.2-stable review patch. If anyone has any objections, please let me know.

------------------

From: Mark Rustad <mark.d.rustad@xxxxxxxxx>

commit 7aa6ca4d39edf01f997b9e02cf6d2fdeb224f351 upstream.

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@xxxxxxxxx>
Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Acked-by: Alexander Duyck <alexander.h.duyck@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/pci/quirks.c | 9 +++++++++
1 file changed, 9 insertions(+)

--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -1894,6 +1894,15 @@ static void quirk_netmos(struct pci_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;


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