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path: root/drivers/pci/pcie/portdrv_core.c
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Diffstat (limited to 'drivers/pci/pcie/portdrv_core.c')
-rw-r--r--drivers/pci/pcie/portdrv_core.c23
1 files changed, 5 insertions, 18 deletions
diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c
index 890f0d2b370..2e091e01482 100644
--- a/drivers/pci/pcie/portdrv_core.c
+++ b/drivers/pci/pcie/portdrv_core.c
@@ -195,24 +195,11 @@ static int get_port_device_capability(struct pci_dev *dev)
/* PME Capable - root port capability */
if (((reg16 >> 4) & PORT_TYPE_MASK) == PCIE_RC_PORT)
services |= PCIE_PORT_SERVICE_PME;
-
- pos = PCI_CFG_SPACE_SIZE;
- while (pos) {
- pci_read_config_dword(dev, pos, &reg32);
- switch (reg32 & 0xffff) {
- case PCI_EXT_CAP_ID_ERR:
- services |= PCIE_PORT_SERVICE_AER;
- pos = reg32 >> 20;
- break;
- case PCI_EXT_CAP_ID_VC:
- services |= PCIE_PORT_SERVICE_VC;
- pos = reg32 >> 20;
- break;
- default:
- pos = 0;
- break;
- }
- }
+
+ if (pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR))
+ services |= PCIE_PORT_SERVICE_AER;
+ if (pci_find_ext_capability(dev, PCI_EXT_CAP_ID_VC))
+ services |= PCIE_PORT_SERVICE_VC;
return services;
}