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PCI: designware: 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>
Acked-by: Jingoo Han <jingoohan1@gmail.com>
This commit is contained in:
Po Liu 2016-08-29 15:26:58 +08:00 committed by Bjorn Helgaas
parent d99e30b793
commit e18934b5e9
1 changed files with 0 additions and 7 deletions
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7
drivers/pci/host/pcie-designware.c
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@ -670,13 +670,6 @@ static int dw_pcie_valid_config(struct pcie_port *pp,
if (bus->number == pp->root_bus_nr && dev > 0) if (bus->number == pp->root_bus_nr && dev > 0)
return 0; return 0;
/*
* do not read more than one device on the bus directly attached
* to RC's (Virtual Bridge's) DS side.
*/
if (bus->primary == pp->root_bus_nr && dev > 0)
return 0;
return 1; return 1;
} }