cxgb4: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify cxgb4 driver.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

2 files changed, 3 insertions, 13 deletions

diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 5ed49af23d6a..4a20821511e7 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -3694,15 +3694,7 @@ static void __devinit print_port_info(const struct net_device *dev)
 
 static void __devinit enable_pcie_relaxed_ordering(struct pci_dev *dev)
 {
-        u16 v;
-        int pos;
-
-        pos = pci_pcie_cap(dev);
-        if (pos > 0) {
-                pci_read_config_word(dev, pos + PCI_EXP_DEVCTL, &v);
-                v |= PCI_EXP_DEVCTL_RELAX_EN;
-                pci_write_config_word(dev, pos + PCI_EXP_DEVCTL, v);
-        }
+        pcie_capability_set_word(dev, PCI_EXP_DEVCTL, PCI_EXP_DEVCTL_RELAX_EN);
 }
 
 /*
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index fa947dfa4c30..af1601323173 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -2741,11 +2741,9 @@ static void __devinit get_pci_mode(struct adapter *adapter,
                                    struct pci_params *p)
 {
         u16 val;
-        u32 pcie_cap = pci_pcie_cap(adapter->pdev);
 
-        if (pcie_cap) {
-                pci_read_config_word(adapter->pdev, pcie_cap + PCI_EXP_LNKSTA,
-                                     &val);
+        if (pci_is_pcie(adapter->pdev)) {
+                pcie_capability_read_word(adapter->pdev, PCI_EXP_LNKSTA, &val);
                 p->speed = val & PCI_EXP_LNKSTA_CLS;
                 p->width = (val & PCI_EXP_LNKSTA_NLW) >> 4;
         }