linux-kernel - [PATCH] driver core: remove dev_bin

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Message-ID: <20131006011930.GA1926@kroah.com>
Date:	Sat, 5 Oct 2013 18:19:30 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Subject: [PATCH] driver core: remove dev_bin_attrs from struct class

From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

No in-kernel code is now using this, they have all be converted over to
using the bin_attrs support in attribute groups, so this field, and the
code in the driver core that was creating/remove the binary files can be
removed.

Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/base/core.c    |   41 ++---------------------------------------
 include/linux/device.h |    2 --
 2 files changed, 2 insertions(+), 41 deletions(-)

--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -455,35 +455,6 @@ static ssize_t online_store(struct devic
 }
 static DEVICE_ATTR_RW(online);
 
-static int device_add_bin_attributes(struct device *dev,
-				     struct bin_attribute *attrs)
-{
-	int error = 0;
-	int i;
-
-	if (attrs) {
-		for (i = 0; attrs[i].attr.name; i++) {
-			error = device_create_bin_file(dev, &attrs[i]);
-			if (error)
-				break;
-		}
-		if (error)
-			while (--i >= 0)
-				device_remove_bin_file(dev, &attrs[i]);
-	}
-	return error;
-}
-
-static void device_remove_bin_attributes(struct device *dev,
-					 struct bin_attribute *attrs)
-{
-	int i;
-
-	if (attrs)
-		for (i = 0; attrs[i].attr.name; i++)
-			device_remove_bin_file(dev, &attrs[i]);
-}
-
 int device_add_groups(struct device *dev, const struct attribute_group **groups)
 {
 	return sysfs_create_groups(&dev->kobj, groups);
@@ -505,15 +476,12 @@ static int device_add_attrs(struct devic
 		error = device_add_groups(dev, class->dev_groups);
 		if (error)
 			return error;
-		error = device_add_bin_attributes(dev, class->dev_bin_attrs);
-		if (error)
-			goto err_remove_class_groups;
 	}
 
 	if (type) {
 		error = device_add_groups(dev, type->groups);
 		if (error)
-			goto err_remove_class_bin_attrs;
+			goto err_remove_class_groups;
 	}
 
 	error = device_add_groups(dev, dev->groups);
@@ -531,9 +499,6 @@ static int device_add_attrs(struct devic
  err_remove_type_groups:
 	if (type)
 		device_remove_groups(dev, type->groups);
- err_remove_class_bin_attrs:
-	if (class)
-		device_remove_bin_attributes(dev, class->dev_bin_attrs);
  err_remove_class_groups:
 	if (class)
 		device_remove_groups(dev, class->dev_groups);
@@ -552,10 +517,8 @@ static void device_remove_attrs(struct d
 	if (type)
 		device_remove_groups(dev, type->groups);
 
-	if (class) {
-		device_remove_bin_attributes(dev, class->dev_bin_attrs);
+	if (class)
 		device_remove_groups(dev, class->dev_groups);
-	}
 }
 
 static ssize_t dev_show(struct device *dev, struct device_attribute *attr,
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -329,7 +329,6 @@ int subsys_virtual_register(struct bus_t
  * @owner:	The module owner.
  * @class_attrs: Default attributes of this class.
  * @dev_groups:	Default attributes of the devices that belong to the class.
- * @dev_bin_attrs: Default binary attributes of the devices belong to the class.
  * @dev_kobj:	The kobject that represents this class and links it into the hierarchy.
  * @dev_uevent:	Called when a device is added, removed from this class, or a
  *		few other things that generate uevents to add the environment
@@ -358,7 +357,6 @@ struct class {
 
 	struct class_attribute		*class_attrs;
 	const struct attribute_group	**dev_groups;
-	struct bin_attribute		*dev_bin_attrs;
 	struct kobject			*dev_kobj;
 
 	int (*dev_uevent)(struct device *dev, struct kobj_uevent_env *env);
--
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