[PATCH] w1: w1_therm: Rename conflicting sysfs attribute 'eeprom' to 'eeprom_cmd'

[PATCH] w1: w1_therm: Rename conflicting sysfs attribute 'eeprom' to 'eeprom_cmd'

[Ivan Zaentsev]

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>
---
 Documentation/ABI/testing/sysfs-driver-w1_therm |  2 +-
 Documentation/w1/slaves/w1_therm.rst            |  2 +-
 drivers/w1/slaves/w1_therm.c                    | 12 ++++++------
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/Documentation/ABI/testing/sysfs-driver-w1_therm b/Documentation/ABI/testing/sysfs-driver-w1_therm
index 6a37dc33ffdb..74642c73d29c 100644
--- a/Documentation/ABI/testing/sysfs-driver-w1_therm
+++ b/Documentation/ABI/testing/sysfs-driver-w1_therm
@@ -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:
diff --git a/Documentation/w1/slaves/w1_therm.rst b/Documentation/w1/slaves/w1_therm.rst
index e39202e2b000..c3c9ed7a356c 100644
--- a/Documentation/w1/slaves/w1_therm.rst
+++ b/Documentation/w1/slaves/w1_therm.rst
@@ -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.
 
diff --git a/drivers/w1/slaves/w1_therm.c b/drivers/w1/slaves/w1_therm.c
index cddf60b7309c..3712b1e6dc71 100644
--- a/drivers/w1/slaves/w1_therm.c
+++ b/drivers/w1/slaves/w1_therm.c
@@ -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);
-- 
2.25.1

Re: [PATCH] w1: w1_therm: Rename conflicting sysfs attribute 'eeprom' to 'eeprom_cmd'

[Greg Kroah-Hartman]

On Thu, Nov 12, 2020 at 09:49:31AM +0300, Ivan Zaentsev wrote:
> 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>
> ---
>  Documentation/ABI/testing/sysfs-driver-w1_therm |  2 +-
>  Documentation/w1/slaves/w1_therm.rst            |  2 +-
>  drivers/w1/slaves/w1_therm.c                    | 12 ++++++------
>  3 files changed, 8 insertions(+), 8 deletions(-)

Very nice, thanks for doing this, I'll go queue this up now.

greg k-h