linux-kernel - [PATCH 5/8] staging: et131x: Remove unnecessary i2c

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Date:	Wed, 20 Aug 2014 23:17:55 +0100
From:	Mark Einon <mark.einon@...il.com>
To:	gregkh@...uxfoundation.org
Cc:	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org, Mark Einon <mark.einon@...il.com>
Subject: [PATCH 5/8] staging: et131x: Remove unnecessary i2c_wack variable

i2c_wack is only used to implement a while(1) loop, so let's remove it.

Signed-off-by: Mark Einon <mark.einon@...il.com>
---
 drivers/staging/et131x/et131x.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/et131x/et131x.c b/drivers/staging/et131x/et131x.c
index fc18e8d..551b250 100644
--- a/drivers/staging/et131x/et131x.c
+++ b/drivers/staging/et131x/et131x.c
@@ -573,7 +573,6 @@ static int eeprom_write(struct et131x_adapter *adapter, u32 addr, u8 data)
 	int index = 0;
 	int retries;
 	int err = 0;
-	int i2c_wack = 0;
 	int writeok = 0;
 	u32 status;
 	u32 val = 0;
@@ -599,8 +598,6 @@ static int eeprom_write(struct et131x_adapter *adapter, u32 addr, u8 data)
 			LBCIF_CONTROL_LBCIF_ENABLE | LBCIF_CONTROL_I2C_WRITE))
 		return -EIO;
 
-	i2c_wack = 1;
-
 	/* Prepare EEPROM address for Step 3 */
 
 	for (retries = 0; retries < MAX_NUM_WRITE_RETRIES; retries++) {
@@ -656,9 +653,9 @@ static int eeprom_write(struct et131x_adapter *adapter, u32 addr, u8 data)
 	 */
 	udelay(10);
 
-	while (i2c_wack) {
+	while (1) {
 		if (pci_write_config_byte(pdev, LBCIF_CONTROL_REGISTER,
-			LBCIF_CONTROL_LBCIF_ENABLE))
+					  LBCIF_CONTROL_LBCIF_ENABLE))
 			writeok = 0;
 
 		/* Do read until internal ACK_ERROR goes away meaning write
@@ -670,7 +667,8 @@ static int eeprom_write(struct et131x_adapter *adapter, u32 addr, u8 data)
 					       addr);
 			do {
 				pci_read_config_dword(pdev,
-					LBCIF_DATA_REGISTER, &val);
+						      LBCIF_DATA_REGISTER,
+						      &val);
 			} while ((val & 0x00010000) == 0);
 		} while (val & 0x00040000);
 
-- 
2.1.0

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