PCI: xilinx: Relax device number checking to allow SR-IOV

Previously we only allowed device 0 to be directly attached to the root
port.  But SR-IOV devices may use non-zero device numbers for VFs.

Remove the restriction that only device 0 may be attached to a root port.

[bhelgaas: changelog]
Signed-off-by: Po Liu <po.liu@nxp.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

diff --git a/drivers/pci/host/pcie-xilinx.c b/drivers/pci/host/pcie-xilinx.c
index a30e016395575016e7f8230e676217b197345f5d..75c89dbadad9f16cb53f6425cfd14892cde01f4f 100644 (file)
--- a/drivers/pci/host/pcie-xilinx.c
+++ b/drivers/pci/host/pcie-xilinx.c
@@ -168,13 +168,6 @@ static bool xilinx_pcie_valid_device(struct pci_bus *bus, unsigned int devfn)
        if (bus->number == port->root_busno && devfn > 0)
                return false;
 
-       /*
-        * Do not read more than one device on the bus directly attached
-        * to RC.
-        */
-       if (bus->primary == port->root_busno && devfn > 0)
-               return false;
-
        return true;
 }