ixgbe: add ixgbe_write_pci_cfg_word with ixgbe_removed check

Inline with the current use for ixgbe_read_pci_cfg_word, create a
similar function for writing PCI config, which checks whether the
adapter has been removed first, if Live Error Recovery has been enabled.
Signed-off-by: NJacob Keller <jacob.e.keller@intel.com>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c

@@ -58,7 +58,6 @@ static s32 ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
  **/
 static void ixgbe_set_pcie_completion_timeout(struct ixgbe_hw *hw)
 {
-	struct ixgbe_adapter *adapter = hw->back;
 	u32 gcr = IXGBE_READ_REG(hw, IXGBE_GCR);
 	u16 pcie_devctl2;
 
@@ -84,11 +83,8 @@ static void ixgbe_set_pcie_completion_timeout(struct ixgbe_hw *hw)
 	 * 16ms to 55ms
 	 */
 	pcie_devctl2 = ixgbe_read_pci_cfg_word(hw, IXGBE_PCI_DEVICE_CONTROL2);
-	if (ixgbe_removed(hw->hw_addr))
-		return;
 	pcie_devctl2 |= IXGBE_PCI_DEVICE_CONTROL2_16ms;
-	pci_write_config_word(adapter->pdev,
-	                      IXGBE_PCI_DEVICE_CONTROL2, pcie_devctl2);
+	ixgbe_write_pci_cfg_word(hw, IXGBE_PCI_DEVICE_CONTROL2, pcie_devctl2);
 out:
 	/* disable completion timeout resend */
 	gcr &= ~IXGBE_GCR_CMPL_TMOUT_RESEND;

drivers/net/ethernet/intel/ixgbe/ixgbe_common.h

@@ -133,6 +133,7 @@ s32 ixgbe_init_thermal_sensor_thresh_generic(struct ixgbe_hw *hw);
 #define IXGBE_FAILED_READ_CFG_WORD 0xffffU
 
 u16 ixgbe_read_pci_cfg_word(struct ixgbe_hw *hw, u32 reg);
+void ixgbe_write_pci_cfg_word(struct ixgbe_hw *hw, u32 reg, u16 value);
 
 static inline bool ixgbe_removed(void __iomem *addr)
 {

drivers/net/ethernet/intel/ixgbe/ixgbe_main.c

@@ -361,6 +361,15 @@ static u32 ixgbe_read_pci_cfg_dword(struct ixgbe_hw *hw, u32 reg)
 }
 #endif /* CONFIG_PCI_IOV */
 
+void ixgbe_write_pci_cfg_word(struct ixgbe_hw *hw, u32 reg, u16 value)
+{
+	struct ixgbe_adapter *adapter = hw->back;
+
+	if (ixgbe_removed(hw->hw_addr))
+		return;
+	pci_write_config_word(adapter->pdev, reg, value);
+}
+
 static void ixgbe_service_event_complete(struct ixgbe_adapter *adapter)
 {
 	BUG_ON(!test_bit(__IXGBE_SERVICE_SCHED, &adapter->state));