ChangeSet 1.1938.445.10, 2004/12/21 11:09:21-08:00, khali@linux-fr.org
[PATCH] I2C: Remove checksum code in eeprom driver
As a follow-up to my earlier proposal to remove the checksum code from
the i2c eeprom driver, here is a patch that does just that. This shrinks
the driver size by around 5%, and paves the way for further fixes and
cleanups.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>
drivers/i2c/chips/eeprom.c | 19 -------------------
1 files changed, 19 deletions(-)
diff -Nru a/drivers/i2c/chips/eeprom.c b/drivers/i2c/chips/eeprom.c
--- a/drivers/i2c/chips/eeprom.c 2005-01-07 14:55:12 -08:00
+++ b/drivers/i2c/chips/eeprom.c 2005-01-07 14:55:12 -08:00
@@ -43,13 +43,6 @@
/* Insmod parameters */
SENSORS_INSMOD_1(eeprom);
-static int checksum = 0;
-module_param(checksum, bool, 0);
-MODULE_PARM_DESC(checksum, "Only accept eeproms whose checksum is correct");
-
-
-/* EEPROM registers */
-#define EEPROM_REG_CHECKSUM 0x3f
/* Size of EEPROM in bytes */
#define EEPROM_SIZE 256
@@ -168,7 +161,6 @@
/* This function is called by i2c_detect */
int eeprom_detect(struct i2c_adapter *adapter, int address, int kind)
{
- int i, cs;
struct i2c_client *new_client;
struct eeprom_data *data;
int err = 0;
@@ -204,17 +196,6 @@
/* prevent 24RF08 corruption */
i2c_smbus_write_quick(new_client, 0);
-
- /* Now, we do the remaining detection. It is not there, unless you force
- the checksum to work out. */
- if (checksum) {
- cs = 0;
- for (i = 0; i <= 0x3e; i++)
- cs += i2c_smbus_read_byte_data(new_client, i);
- cs &= 0xff;
- if (i2c_smbus_read_byte_data (new_client, EEPROM_REG_CHECKSUM) != cs)
- goto exit_kfree;
- }
data->nature = UNKNOWN;
/* Detect the Vaio nature of EEPROMs.