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Code Issues Releases Wiki Activity

w1: w1_therm: Rename conflicting sysfs attribute 'eeprom' to 'eeprom_cmd' 

Duplicate attribute 'eeprom' is defined in:
1) Documentation/ABI/testing/sysfs-driver-w1_therm
2) Documentation/ABI/stable/sysfs-driver-w1_ds28e04

Both drivers define an attribute: /sys/bus/w1/devices/.../eeprom
with conflicting behavior.

Fix by renaming the newer one in w1_therm.c to 'eeprom_cmd'.

Reported-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/lkml/20201029152845.6bbb39ce@coco.lan/
Signed-off-by: Ivan Zaentsev <ivan.zaentsev@wirenboard.ru>
Link: https://lore.kernel.org/r/20201112064931.8471-1-ivan.zaentsev@wirenboard.ru
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ivan Zaentsev 2020-11-12 09:49:31 +03:00 committed by Greg Kroah-Hartman
parent 1987f112f1
commit 439e8f6f1e
3 changed files with 8 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Documentation/ABI/testing/sysfs-driver-w1_therm
View File

@ -14,7 +14,7 @@ Users: any user space application which wants to communicate with
w1_term device
What: /sys/bus/w1/devices/.../eeprom
What: /sys/bus/w1/devices/.../eeprom_cmd
Date: May 2020
Contact: Akira Shimahara <akira215corp@gmail.com>
Description:

2
Documentation/w1/slaves/w1_therm.rst
View File

@ -82,7 +82,7 @@ resolution is read back from the chip and verified.
Note: Changing the resolution reverts the conversion time to default.
The write-only sysfs entry ``eeprom`` is an alternative for EEPROM operations.
The write-only sysfs entry ``eeprom_cmd`` is an alternative for EEPROM operations.
Write ``save`` to save device RAM to EEPROM. Write ``restore`` to restore EEPROM
data in device RAM.

12
drivers/w1/slaves/w1_therm.c
View File

@ -315,7 +315,7 @@ static ssize_t resolution_show(struct device *device,
static ssize_t resolution_store(struct device *device,
struct device_attribute *attr, const char *buf, size_t size);
static ssize_t eeprom_store(struct device *device,
static ssize_t eeprom_cmd_store(struct device *device,
struct device_attribute *attr, const char *buf, size_t size);
static ssize_t alarms_store(struct device *device,
@ -350,7 +350,7 @@ static DEVICE_ATTR_RO(w1_seq);
static DEVICE_ATTR_RO(temperature);
static DEVICE_ATTR_RO(ext_power);
static DEVICE_ATTR_RW(resolution);
static DEVICE_ATTR_WO(eeprom);
static DEVICE_ATTR_WO(eeprom_cmd);
static DEVICE_ATTR_RW(alarms);
static DEVICE_ATTR_RW(conv_time);
static DEVICE_ATTR_RW(features);
@ -386,7 +386,7 @@ static struct attribute *w1_therm_attrs[] = {
&dev_attr_temperature.attr,
&dev_attr_ext_power.attr,
&dev_attr_resolution.attr,
&dev_attr_eeprom.attr,
&dev_attr_eeprom_cmd.attr,
&dev_attr_alarms.attr,
&dev_attr_conv_time.attr,
&dev_attr_features.attr,
@ -397,7 +397,7 @@ static struct attribute *w1_ds18s20_attrs[] = {
&dev_attr_w1_slave.attr,
&dev_attr_temperature.attr,
&dev_attr_ext_power.attr,
&dev_attr_eeprom.attr,
&dev_attr_eeprom_cmd.attr,
&dev_attr_alarms.attr,
&dev_attr_conv_time.attr,
&dev_attr_features.attr,
@ -410,7 +410,7 @@ static struct attribute *w1_ds28ea00_attrs[] = {
&dev_attr_temperature.attr,
&dev_attr_ext_power.attr,
&dev_attr_resolution.attr,
&dev_attr_eeprom.attr,
&dev_attr_eeprom_cmd.attr,
&dev_attr_alarms.attr,
&dev_attr_conv_time.attr,
&dev_attr_features.attr,
@ -1740,7 +1740,7 @@ static ssize_t resolution_store(struct device *device,
return size;
}
static ssize_t eeprom_store(struct device *device,
static ssize_t eeprom_cmd_store(struct device *device,
struct device_attribute *attr, const char *buf, size_t size)
{
struct w1_slave *sl = dev_to_w1_slave(device);