[PATCH v2 10/10] e1000e: Use pcie_capability_read_word() for reading LNKSTA

[Ilpo Järvinen]

Use pcie_capability_read_word() for reading LNKSTA and remove the
custom define that matches to PCI_EXP_LNKSTA.

As only single user for cap_offset remains, remove it too and use
adapter->pdev->pcie_cap directly in the if condition.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
---
 drivers/net/ethernet/intel/e1000e/defines.h |  1 -
 drivers/net/ethernet/intel/e1000e/mac.c     | 10 ++++------
 2 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/intel/e1000e/defines.h b/drivers/net/ethernet/intel/e1000e/defines.h
index a4d29c9e03a6..23a58cada43a 100644
--- a/drivers/net/ethernet/intel/e1000e/defines.h
+++ b/drivers/net/ethernet/intel/e1000e/defines.h
@@ -678,7 +678,6 @@
 
 /* PCI/PCI-X/PCI-EX Config space */
 #define PCI_HEADER_TYPE_REGISTER     0x0E
-#define PCIE_LINK_STATUS             0x12
 
 #define PCI_HEADER_TYPE_MULTIFUNC    0x80
 
diff --git a/drivers/net/ethernet/intel/e1000e/mac.c b/drivers/net/ethernet/intel/e1000e/mac.c
index 5340cf73778d..e86652a30069 100644
--- a/drivers/net/ethernet/intel/e1000e/mac.c
+++ b/drivers/net/ethernet/intel/e1000e/mac.c
@@ -18,15 +18,13 @@ s32 e1000e_get_bus_info_pcie(struct e1000_hw *hw)
 	struct e1000_mac_info *mac = &hw->mac;
 	struct e1000_bus_info *bus = &hw->bus;
 	struct e1000_adapter *adapter = hw->adapter;
-	u16 pcie_link_status, cap_offset;
+	u16 pcie_link_status;
 
-	cap_offset = adapter->pdev->pcie_cap;
-	if (!cap_offset) {
+	if (!adapter->pdev->pcie_cap) {
 		bus->width = e1000_bus_width_unknown;
 	} else {
-		pci_read_config_word(adapter->pdev,
-				     cap_offset + PCIE_LINK_STATUS,
-				     &pcie_link_status);
+		pcie_capability_read_word(adapter->pdev, PCI_EXP_LNKSTA,
+					  &pcie_link_status);
 		bus->width = (enum e1000_bus_width)FIELD_GET(PCI_EXP_LNKSTA_NLW,
 							     pcie_link_status);
 	}
-- 
2.30.2