[PATCH -next] net: ixgb: Remove set but not used variable

[Zheng Yongjun]

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/ethernet/intel/ixgb/ixgb_hw.c: In function ixgb_adapter_stop:
drivers/net/ethernet/intel/ixgb/ixgb_hw.c:101:6: warning: variable ‘icr_reg’ 
set but not used [-Wunused-but-set-variable]

drivers/net/ethernet/intel/ixgb/ixgb_hw.c: In function ixgb_optics_reset:
drivers/net/ethernet/intel/ixgb/ixgb_hw.c:1164:7: warning: variable ‘mdio_reg’ 
set but not used [-Wunused-but-set-variable]

drivers/net/ethernet/intel/ixgb/ixgb_hw.c: In function ixgb_init_hw:
drivers/net/ethernet/intel/ixgb/ixgb_hw.c:277:6: warning: variable ‘ctrl_reg’ 
set but not used [-Wunused-but-set-variable]

these variable is never used, so remove it.

Signed-off-by: Zheng Yongjun <zhengyongj...@huawei.com>
---
 drivers/net/ethernet/intel/ixgb/ixgb_hw.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgb/ixgb_hw.c 
b/drivers/net/ethernet/intel/ixgb/ixgb_hw.c
index cbaa933ef30d..7a5678afa7ce 100644
--- a/drivers/net/ethernet/intel/ixgb/ixgb_hw.c
+++ b/drivers/net/ethernet/intel/ixgb/ixgb_hw.c
@@ -98,7 +98,6 @@ bool
 ixgb_adapter_stop(struct ixgb_hw *hw)
 {
        u32 ctrl_reg;
-       u32 icr_reg;
 
        ENTER();
 
@@ -142,7 +141,7 @@ ixgb_adapter_stop(struct ixgb_hw *hw)
        IXGB_WRITE_REG(hw, IMC, 0xffffffff);
 
        /* Clear any pending interrupt events. */
-       icr_reg = IXGB_READ_REG(hw, ICR);
+       IXGB_READ_REG(hw, ICR);
 
        return ctrl_reg & IXGB_CTRL0_RST;
 }
@@ -274,7 +273,6 @@ bool
 ixgb_init_hw(struct ixgb_hw *hw)
 {
        u32 i;
-       u32 ctrl_reg;
        bool status;
 
        ENTER();
@@ -286,7 +284,7 @@ ixgb_init_hw(struct ixgb_hw *hw)
         */
        pr_debug("Issuing a global reset to MAC\n");
 
-       ctrl_reg = ixgb_mac_reset(hw);
+       ixgb_mac_reset(hw);
 
        pr_debug("Issuing an EE reset to MAC\n");
 #ifdef HP_ZX1
@@ -1161,18 +1159,16 @@ static void
 ixgb_optics_reset(struct ixgb_hw *hw)
 {
        if (hw->phy_type == ixgb_phy_type_txn17401) {
-               u16 mdio_reg;
-
                ixgb_write_phy_reg(hw,
                                   MDIO_CTRL1,
                                   IXGB_PHY_ADDRESS,
                                   MDIO_MMD_PMAPMD,
                                   MDIO_CTRL1_RESET);
 
-               mdio_reg = ixgb_read_phy_reg(hw,
-                                            MDIO_CTRL1,
-                                            IXGB_PHY_ADDRESS,
-                                            MDIO_MMD_PMAPMD);
+               ixgb_read_phy_reg(hw,
+                                 MDIO_CTRL1,
+                                 IXGB_PHY_ADDRESS,
+                                 MDIO_MMD_PMAPMD);
        }
 }
 
-- 
2.17.1