[PATCH] e1000: remove unused variables
From: Sudip Mukherjee
Date: Thu Nov 27 2014 - 00:22:40 EST
these variables were only being assigned some values, but were never
used.
Signed-off-by: Sudip Mukherjee <sudip@xxxxxxxxxxxxxxx>
---
drivers/net/ethernet/intel/e1000/e1000_hw.c | 142 ++++++++++++--------------
drivers/net/ethernet/intel/e1000/e1000_main.c | 3 -
2 files changed, 66 insertions(+), 79 deletions(-)
diff --git a/drivers/net/ethernet/intel/e1000/e1000_hw.c b/drivers/net/ethernet/intel/e1000/e1000_hw.c
index 45c8c864..7812f59 100644
--- a/drivers/net/ethernet/intel/e1000/e1000_hw.c
+++ b/drivers/net/ethernet/intel/e1000/e1000_hw.c
@@ -154,7 +154,6 @@ static s32 e1000_set_phy_type(struct e1000_hw *hw)
*/
static void e1000_phy_init_script(struct e1000_hw *hw)
{
- u32 ret_val;
u16 phy_saved_data;
if (hw->phy_init_script) {
@@ -163,7 +162,7 @@ static void e1000_phy_init_script(struct e1000_hw *hw)
/* Save off the current value of register 0x2F5B to be restored
* at the end of this routine.
*/
- ret_val = e1000_read_phy_reg(hw, 0x2F5B, &phy_saved_data);
+ e1000_read_phy_reg(hw, 0x2F5B, &phy_saved_data);
/* Disabled the PHY transmitter */
e1000_write_phy_reg(hw, 0x2F5B, 0x0003);
@@ -402,7 +401,6 @@ s32 e1000_reset_hw(struct e1000_hw *hw)
{
u32 ctrl;
u32 ctrl_ext;
- u32 icr;
u32 manc;
u32 led_ctrl;
s32 ret_val;
@@ -527,7 +525,7 @@ s32 e1000_reset_hw(struct e1000_hw *hw)
ew32(IMC, 0xffffffff);
/* Clear any pending interrupt events. */
- icr = er32(ICR);
+ er32(ICR);
/* If MWI was previously enabled, reenable it. */
if (hw->mac_type == e1000_82542_rev2_0) {
@@ -2396,16 +2394,13 @@ static s32 e1000_check_for_serdes_link_generic(struct e1000_hw *hw)
*/
s32 e1000_check_for_link(struct e1000_hw *hw)
{
- u32 rxcw = 0;
- u32 ctrl;
u32 status;
u32 rctl;
u32 icr;
- u32 signal = 0;
s32 ret_val;
u16 phy_data;
- ctrl = er32(CTRL);
+ er32(CTRL);
status = er32(STATUS);
/* On adapters with a MAC newer than 82544, SW Definable pin 1 will be
@@ -2414,12 +2409,9 @@ s32 e1000_check_for_link(struct e1000_hw *hw)
*/
if ((hw->media_type == e1000_media_type_fiber) ||
(hw->media_type == e1000_media_type_internal_serdes)) {
- rxcw = er32(RXCW);
+ er32(RXCW);
if (hw->media_type == e1000_media_type_fiber) {
- signal =
- (hw->mac_type >
- e1000_82544) ? E1000_CTRL_SWDPIN1 : 0;
if (status & E1000_STATUS_LU)
hw->get_link_status = false;
}
@@ -4698,78 +4690,76 @@ s32 e1000_led_off(struct e1000_hw *hw)
*/
static void e1000_clear_hw_cntrs(struct e1000_hw *hw)
{
- volatile u32 temp;
-
- temp = er32(CRCERRS);
- temp = er32(SYMERRS);
- temp = er32(MPC);
- temp = er32(SCC);
- temp = er32(ECOL);
- temp = er32(MCC);
- temp = er32(LATECOL);
- temp = er32(COLC);
- temp = er32(DC);
- temp = er32(SEC);
- temp = er32(RLEC);
- temp = er32(XONRXC);
- temp = er32(XONTXC);
- temp = er32(XOFFRXC);
- temp = er32(XOFFTXC);
- temp = er32(FCRUC);
-
- temp = er32(PRC64);
- temp = er32(PRC127);
- temp = er32(PRC255);
- temp = er32(PRC511);
- temp = er32(PRC1023);
- temp = er32(PRC1522);
-
- temp = er32(GPRC);
- temp = er32(BPRC);
- temp = er32(MPRC);
- temp = er32(GPTC);
- temp = er32(GORCL);
- temp = er32(GORCH);
- temp = er32(GOTCL);
- temp = er32(GOTCH);
- temp = er32(RNBC);
- temp = er32(RUC);
- temp = er32(RFC);
- temp = er32(ROC);
- temp = er32(RJC);
- temp = er32(TORL);
- temp = er32(TORH);
- temp = er32(TOTL);
- temp = er32(TOTH);
- temp = er32(TPR);
- temp = er32(TPT);
-
- temp = er32(PTC64);
- temp = er32(PTC127);
- temp = er32(PTC255);
- temp = er32(PTC511);
- temp = er32(PTC1023);
- temp = er32(PTC1522);
-
- temp = er32(MPTC);
- temp = er32(BPTC);
+ er32(CRCERRS);
+ er32(SYMERRS);
+ er32(MPC);
+ er32(SCC);
+ er32(ECOL);
+ er32(MCC);
+ er32(LATECOL);
+ er32(COLC);
+ er32(DC);
+ er32(SEC);
+ er32(RLEC);
+ er32(XONRXC);
+ er32(XONTXC);
+ er32(XOFFRXC);
+ er32(XOFFTXC);
+ er32(FCRUC);
+
+ er32(PRC64);
+ er32(PRC127);
+ er32(PRC255);
+ er32(PRC511);
+ er32(PRC1023);
+ er32(PRC1522);
+
+ er32(GPRC);
+ er32(BPRC);
+ er32(MPRC);
+ er32(GPTC);
+ er32(GORCL);
+ er32(GORCH);
+ er32(GOTCL);
+ er32(GOTCH);
+ er32(RNBC);
+ er32(RUC);
+ er32(RFC);
+ er32(ROC);
+ er32(RJC);
+ er32(TORL);
+ er32(TORH);
+ er32(TOTL);
+ er32(TOTH);
+ er32(TPR);
+ er32(TPT);
+
+ er32(PTC64);
+ er32(PTC127);
+ er32(PTC255);
+ er32(PTC511);
+ er32(PTC1023);
+ er32(PTC1522);
+
+ er32(MPTC);
+ er32(BPTC);
if (hw->mac_type < e1000_82543)
return;
- temp = er32(ALGNERRC);
- temp = er32(RXERRC);
- temp = er32(TNCRS);
- temp = er32(CEXTERR);
- temp = er32(TSCTC);
- temp = er32(TSCTFC);
+ er32(ALGNERRC);
+ er32(RXERRC);
+ er32(TNCRS);
+ er32(CEXTERR);
+ er32(TSCTC);
+ er32(TSCTFC);
if (hw->mac_type <= e1000_82544)
return;
- temp = er32(MGTPRC);
- temp = er32(MGTPDC);
- temp = er32(MGTPTC);
+ er32(MGTPRC);
+ er32(MGTPDC);
+ er32(MGTPTC);
}
/**
diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c
index 24f3986..a70ea46 100644
--- a/drivers/net/ethernet/intel/e1000/e1000_main.c
+++ b/drivers/net/ethernet/intel/e1000/e1000_main.c
@@ -2443,7 +2443,6 @@ static void e1000_watchdog(struct work_struct *work)
if (link) {
if (!netif_carrier_ok(netdev)) {
u32 ctrl;
- bool txb2b = true;
/* update snapshot of PHY registers on LSC */
e1000_get_speed_and_duplex(hw,
&adapter->link_speed,
@@ -2465,11 +2464,9 @@ static void e1000_watchdog(struct work_struct *work)
adapter->tx_timeout_factor = 1;
switch (adapter->link_speed) {
case SPEED_10:
- txb2b = false;
adapter->tx_timeout_factor = 16;
break;
case SPEED_100:
- txb2b = false;
/* maybe add some timeout factor ? */
break;
}
--
1.8.1.2
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