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Date: Wed, 5 Oct 2011 03:20:18 -0700
From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To: davem@...emloft.net
Cc: Emil Tantilov <emil.s.tantilov@...el.com>, netdev@...r.kernel.org,
gospo@...hat.com, Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next 04/10] ixgbe: remove return code for functions that always return 0
From: Emil Tantilov <emil.s.tantilov@...el.com>
Since ixgbe_raise_i2c_clk() can never return anything else than 0
this patch removes it's return value and all checks for it.
Signed-off-by: Emil Tantilov <emil.s.tantilov@...el.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c | 30 +++++++------------------
1 files changed, 9 insertions(+), 21 deletions(-)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
index cf3c227..9a56fd7 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
@@ -39,7 +39,7 @@ static s32 ixgbe_clock_out_i2c_byte(struct ixgbe_hw *hw, u8 data);
static s32 ixgbe_get_i2c_ack(struct ixgbe_hw *hw);
static s32 ixgbe_clock_in_i2c_bit(struct ixgbe_hw *hw, bool *data);
static s32 ixgbe_clock_out_i2c_bit(struct ixgbe_hw *hw, bool data);
-static s32 ixgbe_raise_i2c_clk(struct ixgbe_hw *hw, u32 *i2cctl);
+static void ixgbe_raise_i2c_clk(struct ixgbe_hw *hw, u32 *i2cctl);
static void ixgbe_lower_i2c_clk(struct ixgbe_hw *hw, u32 *i2cctl);
static s32 ixgbe_set_i2c_data(struct ixgbe_hw *hw, u32 *i2cctl, bool data);
static bool ixgbe_get_i2c_data(u32 *i2cctl);
@@ -1420,19 +1420,15 @@ static void ixgbe_i2c_stop(struct ixgbe_hw *hw)
**/
static s32 ixgbe_clock_in_i2c_byte(struct ixgbe_hw *hw, u8 *data)
{
- s32 status = 0;
s32 i;
bool bit = 0;
for (i = 7; i >= 0; i--) {
- status = ixgbe_clock_in_i2c_bit(hw, &bit);
+ ixgbe_clock_in_i2c_bit(hw, &bit);
*data |= bit << i;
-
- if (status != 0)
- break;
}
- return status;
+ return 0;
}
/**
@@ -1473,16 +1469,14 @@ static s32 ixgbe_clock_out_i2c_byte(struct ixgbe_hw *hw, u8 data)
**/
static s32 ixgbe_get_i2c_ack(struct ixgbe_hw *hw)
{
- s32 status;
+ s32 status = 0;
u32 i = 0;
u32 i2cctl = IXGBE_READ_REG(hw, IXGBE_I2CCTL);
u32 timeout = 10;
bool ack = 1;
- status = ixgbe_raise_i2c_clk(hw, &i2cctl);
+ ixgbe_raise_i2c_clk(hw, &i2cctl);
- if (status != 0)
- goto out;
/* Minimum high period of clock is 4us */
udelay(IXGBE_I2C_T_HIGH);
@@ -1508,7 +1502,6 @@ static s32 ixgbe_get_i2c_ack(struct ixgbe_hw *hw)
/* Minimum low period of clock is 4.7 us */
udelay(IXGBE_I2C_T_LOW);
-out:
return status;
}
@@ -1521,10 +1514,9 @@ out:
**/
static s32 ixgbe_clock_in_i2c_bit(struct ixgbe_hw *hw, bool *data)
{
- s32 status;
u32 i2cctl = IXGBE_READ_REG(hw, IXGBE_I2CCTL);
- status = ixgbe_raise_i2c_clk(hw, &i2cctl);
+ ixgbe_raise_i2c_clk(hw, &i2cctl);
/* Minimum high period of clock is 4us */
udelay(IXGBE_I2C_T_HIGH);
@@ -1537,7 +1529,7 @@ static s32 ixgbe_clock_in_i2c_bit(struct ixgbe_hw *hw, bool *data)
/* Minimum low period of clock is 4.7 us */
udelay(IXGBE_I2C_T_LOW);
- return status;
+ return 0;
}
/**
@@ -1554,7 +1546,7 @@ static s32 ixgbe_clock_out_i2c_bit(struct ixgbe_hw *hw, bool data)
status = ixgbe_set_i2c_data(hw, &i2cctl, data);
if (status == 0) {
- status = ixgbe_raise_i2c_clk(hw, &i2cctl);
+ ixgbe_raise_i2c_clk(hw, &i2cctl);
/* Minimum high period of clock is 4us */
udelay(IXGBE_I2C_T_HIGH);
@@ -1579,10 +1571,8 @@ static s32 ixgbe_clock_out_i2c_bit(struct ixgbe_hw *hw, bool data)
*
* Raises the I2C clock line '0'->'1'
**/
-static s32 ixgbe_raise_i2c_clk(struct ixgbe_hw *hw, u32 *i2cctl)
+static void ixgbe_raise_i2c_clk(struct ixgbe_hw *hw, u32 *i2cctl)
{
- s32 status = 0;
-
*i2cctl |= IXGBE_I2C_CLK_OUT;
IXGBE_WRITE_REG(hw, IXGBE_I2CCTL, *i2cctl);
@@ -1590,8 +1580,6 @@ static s32 ixgbe_raise_i2c_clk(struct ixgbe_hw *hw, u32 *i2cctl)
/* SCL rise time (1000ns) */
udelay(IXGBE_I2C_T_RISE);
-
- return status;
}
/**
--
1.7.6.4
--
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