diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2015-10-01 16:14:24 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2015-10-01 16:14:24 +0200 |
| commit | bebcb8dab6bac53b6a61a896db03781d1992cadb (patch) | |
| tree | 4793b0c2e913db8cf573ee52d568471603273af6 /drivers/pci/quirks.c | |
| parent | 26c21dd9885a2d8a4f4d539917c4877ffd399286 (diff) | |
| parent | f1e0bb0ad473a32d1b7e6d285ae9f7e47710bb5e (diff) | |
Merge branch 'irq/for-arm' into irq/core
Bring in the change which we offered arm[64] folks to pull into their
trees.
Diffstat (limited to 'drivers/pci/quirks.c')
| -rw-r--r-- | drivers/pci/quirks.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 6a30252cd79f..b03373fd05ca 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1907,11 +1907,27 @@ 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); +/* + * Quirk non-zero PCI functions to route VPD access through function 0 for + * devices that share VPD resources between functions. The functions are + * expected to be identical devices. + */ static void quirk_f0_vpd_link(struct pci_dev *dev) { - if (!dev->multifunction || !PCI_FUNC(dev->devfn)) + struct pci_dev *f0; + + if (!PCI_FUNC(dev->devfn)) return; - dev->dev_flags |= PCI_DEV_FLAGS_VPD_REF_F0; + + f0 = pci_get_slot(dev->bus, PCI_DEVFN(PCI_SLOT(dev->devfn), 0)); + if (!f0) + return; + + if (f0->vpd && dev->class == f0->class && + dev->vendor == f0->vendor && dev->device == f0->device) + dev->dev_flags |= PCI_DEV_FLAGS_VPD_REF_F0; + + pci_dev_put(f0); } DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, PCI_CLASS_NETWORK_ETHERNET, 8, quirk_f0_vpd_link); |