From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@xxxxxxxxxxxxxxx> As per PCIe r4.0, sec 9.3.6, VF must not implement Enhanced Allocation Capability. So skip pci_ea_init() for virtual devices. Cc: Ashok Raj <ashok.raj@xxxxxxxxx> Cc: Keith Busch <keith.busch@xxxxxxxxx> Suggested-by: Ashok Raj <ashok.raj@xxxxxxxxx> Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@xxxxxxxxxxxxxxx> --- drivers/pci/pci.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 8abc843b1615..c299ab470351 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -2986,6 +2986,13 @@ void pci_ea_init(struct pci_dev *dev) int offset; int i; + /* + * Per PCIe r4.0, sec 9.3.6, VF must not implement Enhanced + * Allocation Capability. + */ + if (dev->is_virtfn) + return; + /* find PCI EA capability in list */ ea = pci_find_capability(dev, PCI_CAP_ID_EA); if (!ea) -- 2.21.0
