rtlwifi: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify rtlwifi driver.

[bhelgaas: split iwlegacy, iwlwifi, rtlwifi into separate patches]
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

1 files changed, 3 insertions, 5 deletions

diff --git a/drivers/net/wireless/rtlwifi/pci.c b/drivers/net/wireless/rtlwifi/pci.c
index 80f75d3ba84a..5983631a1b1a 100644
--- a/drivers/net/wireless/rtlwifi/pci.c
+++ b/drivers/net/wireless/rtlwifi/pci.c
@@ -372,13 +372,11 @@ static void rtl_pci_parse_configuration(struct pci_dev *pdev,
         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
 
         u8 tmp;
-        int pos;
-        u8 linkctrl_reg;
+        u16 linkctrl_reg;
 
         /*Link Control Register */
-        pos = pci_pcie_cap(pdev);
-        pci_read_config_byte(pdev, pos + PCI_EXP_LNKCTL, &linkctrl_reg);
-        pcipriv->ndis_adapter.linkctrl_reg = linkctrl_reg;
+        pcie_capability_read_word(pdev, PCI_EXP_LNKCTL, &linkctrl_reg);
+        pcipriv->ndis_adapter.linkctrl_reg = (u8)linkctrl_reg;
 
         RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, "Link Control Register =%x\n",
                  pcipriv->ndis_adapter.linkctrl_reg);