1 files changed, 189 insertions, 187 deletions

diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index c85bf8f678dc..f4f6615cad9f 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -3,8 +3,6 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 
-#include <linux/platform_device.h>
-
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
 
@@ -12,10 +10,164 @@
 #undef  BT_DBG
 #define BT_DBG(D...)
 #endif
+
+struct class *bt_class = NULL;
+EXPORT_SYMBOL_GPL(bt_class);
+
 static struct workqueue_struct *btaddconn;
 static struct workqueue_struct *btdelconn;
 
-static inline char *typetostr(int type)
+static inline char *link_typetostr(int type)
+{
+	switch (type) {
+	case ACL_LINK:
+		return "ACL";
+	case SCO_LINK:
+		return "SCO";
+	case ESCO_LINK:
+		return "eSCO";
+	default:
+		return "UNKNOWN";
+	}
+}
+
+static ssize_t show_link_type(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct hci_conn *conn = dev_get_drvdata(dev);
+	return sprintf(buf, "%s\n", link_typetostr(conn->type));
+}
+
+static ssize_t show_link_address(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct hci_conn *conn = dev_get_drvdata(dev);
+	bdaddr_t bdaddr;
+	baswap(&bdaddr, &conn->dst);
+	return sprintf(buf, "%s\n", batostr(&bdaddr));
+}
+
+static ssize_t show_link_features(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct hci_conn *conn = dev_get_drvdata(dev);
+
+	return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
+				conn->features[0], conn->features[1],
+				conn->features[2], conn->features[3],
+				conn->features[4], conn->features[5],
+				conn->features[6], conn->features[7]);
+}
+
+#define LINK_ATTR(_name,_mode,_show,_store) \
+struct device_attribute link_attr_##_name = __ATTR(_name,_mode,_show,_store)
+
+static LINK_ATTR(type, S_IRUGO, show_link_type, NULL);
+static LINK_ATTR(address, S_IRUGO, show_link_address, NULL);
+static LINK_ATTR(features, S_IRUGO, show_link_features, NULL);
+
+static struct attribute *bt_link_attrs[] = {
+	&link_attr_type.attr,
+	&link_attr_address.attr,
+	&link_attr_features.attr,
+	NULL
+};
+
+static struct attribute_group bt_link_group = {
+	.attrs = bt_link_attrs,
+};
+
+static struct attribute_group *bt_link_groups[] = {
+	&bt_link_group,
+	NULL
+};
+
+static void bt_link_release(struct device *dev)
+{
+	void *data = dev_get_drvdata(dev);
+	kfree(data);
+}
+
+static struct device_type bt_link = {
+	.name    = "link",
+	.groups  = bt_link_groups,
+	.release = bt_link_release,
+};
+
+static void add_conn(struct work_struct *work)
+{
+	struct hci_conn *conn = container_of(work, struct hci_conn, work);
+
+	flush_workqueue(btdelconn);
+
+	if (device_add(&conn->dev) < 0) {
+		BT_ERR("Failed to register connection device");
+		return;
+	}
+}
+
+void hci_conn_add_sysfs(struct hci_conn *conn)
+{
+	struct hci_dev *hdev = conn->hdev;
+
+	BT_DBG("conn %p", conn);
+
+	conn->dev.type = &bt_link;
+	conn->dev.class = bt_class;
+	conn->dev.parent = &hdev->dev;
+
+	snprintf(conn->dev.bus_id, BUS_ID_SIZE, "%s:%d",
+					hdev->name, conn->handle);
+
+	dev_set_drvdata(&conn->dev, conn);
+
+	device_initialize(&conn->dev);
+
+	INIT_WORK(&conn->work, add_conn);
+
+	queue_work(btaddconn, &conn->work);
+}
+
+/*
+ * The rfcomm tty device will possibly retain even when conn
+ * is down, and sysfs doesn't support move zombie device,
+ * so we should move the device before conn device is destroyed.
+ */
+static int __match_tty(struct device *dev, void *data)
+{
+	return !strncmp(dev->bus_id, "rfcomm", 6);
+}
+
+static void del_conn(struct work_struct *work)
+{
+	struct hci_conn *conn = container_of(work, struct hci_conn, work);
+	struct hci_dev *hdev = conn->hdev;
+
+	while (1) {
+		struct device *dev;
+
+		dev = device_find_child(&conn->dev, NULL, __match_tty);
+		if (!dev)
+			break;
+		device_move(dev, NULL);
+		put_device(dev);
+	}
+
+	device_del(&conn->dev);
+	put_device(&conn->dev);
+	hci_dev_put(hdev);
+}
+
+void hci_conn_del_sysfs(struct hci_conn *conn)
+{
+	BT_DBG("conn %p", conn);
+
+	if (!device_is_registered(&conn->dev))
+		return;
+
+	INIT_WORK(&conn->work, del_conn);
+
+	queue_work(btdelconn, &conn->work);
+}
+
+static inline char *host_typetostr(int type)
 {
 	switch (type) {
 	case HCI_VIRTUAL:
@@ -40,7 +192,7 @@ static inline char *typetostr(int type)
 static ssize_t show_type(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct hci_dev *hdev = dev_get_drvdata(dev);
-	return sprintf(buf, "%s\n", typetostr(hdev->type));
+	return sprintf(buf, "%s\n", host_typetostr(hdev->type));
 }
 
 static ssize_t show_name(struct device *dev, struct device_attribute *attr, char *buf)
@@ -221,183 +373,62 @@ static DEVICE_ATTR(sniff_max_interval, S_IRUGO | S_IWUSR,
 static DEVICE_ATTR(sniff_min_interval, S_IRUGO | S_IWUSR,
 				show_sniff_min_interval, store_sniff_min_interval);
 
-static struct device_attribute *bt_attrs[] = {
-	&dev_attr_type,
-	&dev_attr_name,
-	&dev_attr_class,
-	&dev_attr_address,
-	&dev_attr_features,
-	&dev_attr_manufacturer,
-	&dev_attr_hci_version,
-	&dev_attr_hci_revision,
-	&dev_attr_inquiry_cache,
-	&dev_attr_idle_timeout,
-	&dev_attr_sniff_max_interval,
-	&dev_attr_sniff_min_interval,
+static struct attribute *bt_host_attrs[] = {
+	&dev_attr_type.attr,
+	&dev_attr_name.attr,
+	&dev_attr_class.attr,
+	&dev_attr_address.attr,
+	&dev_attr_features.attr,
+	&dev_attr_manufacturer.attr,
+	&dev_attr_hci_version.attr,
+	&dev_attr_hci_revision.attr,
+	&dev_attr_inquiry_cache.attr,
+	&dev_attr_idle_timeout.attr,
+	&dev_attr_sniff_max_interval.attr,
+	&dev_attr_sniff_min_interval.attr,
 	NULL
 };
 
-static ssize_t show_conn_type(struct device *dev, struct device_attribute *attr, char *buf)
-{
-	struct hci_conn *conn = dev_get_drvdata(dev);
-	return sprintf(buf, "%s\n", conn->type == ACL_LINK ? "ACL" : "SCO");
-}
-
-static ssize_t show_conn_address(struct device *dev, struct device_attribute *attr, char *buf)
-{
-	struct hci_conn *conn = dev_get_drvdata(dev);
-	bdaddr_t bdaddr;
-	baswap(&bdaddr, &conn->dst);
-	return sprintf(buf, "%s\n", batostr(&bdaddr));
-}
-
-static ssize_t show_conn_features(struct device *dev, struct device_attribute *attr, char *buf)
-{
-	struct hci_conn *conn = dev_get_drvdata(dev);
-
-	return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
-				conn->features[0], conn->features[1],
-				conn->features[2], conn->features[3],
-				conn->features[4], conn->features[5],
-				conn->features[6], conn->features[7]);
-}
-
-#define CONN_ATTR(_name,_mode,_show,_store) \
-struct device_attribute conn_attr_##_name = __ATTR(_name,_mode,_show,_store)
-
-static CONN_ATTR(type, S_IRUGO, show_conn_type, NULL);
-static CONN_ATTR(address, S_IRUGO, show_conn_address, NULL);
-static CONN_ATTR(features, S_IRUGO, show_conn_features, NULL);
-
-static struct device_attribute *conn_attrs[] = {
-	&conn_attr_type,
-	&conn_attr_address,
-	&conn_attr_features,
-	NULL
+static struct attribute_group bt_host_group = {
+	.attrs = bt_host_attrs,
 };
 
-struct class *bt_class = NULL;
-EXPORT_SYMBOL_GPL(bt_class);
-
-static struct bus_type bt_bus = {
-	.name	= "bluetooth",
+static struct attribute_group *bt_host_groups[] = {
+	&bt_host_group,
+	NULL
 };
 
-static struct platform_device *bt_platform;
-
-static void bt_release(struct device *dev)
+static void bt_host_release(struct device *dev)
 {
 	void *data = dev_get_drvdata(dev);
 	kfree(data);
 }
 
-static void add_conn(struct work_struct *work)
-{
-	struct hci_conn *conn = container_of(work, struct hci_conn, work);
-	int i;
-
-	flush_workqueue(btdelconn);
-
-	if (device_add(&conn->dev) < 0) {
-		BT_ERR("Failed to register connection device");
-		return;
-	}
-
-	for (i = 0; conn_attrs[i]; i++)
-		if (device_create_file(&conn->dev, conn_attrs[i]) < 0)
-			BT_ERR("Failed to create connection attribute");
-}
-
-void hci_conn_add_sysfs(struct hci_conn *conn)
-{
-	struct hci_dev *hdev = conn->hdev;
-
-	BT_DBG("conn %p", conn);
-
-	conn->dev.bus = &bt_bus;
-	conn->dev.parent = &hdev->dev;
-
-	conn->dev.release = bt_release;
-
-	snprintf(conn->dev.bus_id, BUS_ID_SIZE, "%s:%d",
-					hdev->name, conn->handle);
-
-	dev_set_drvdata(&conn->dev, conn);
-
-	device_initialize(&conn->dev);
-
-	INIT_WORK(&conn->work, add_conn);
-
-	queue_work(btaddconn, &conn->work);
-}
-
-/*
- * The rfcomm tty device will possibly retain even when conn
- * is down, and sysfs doesn't support move zombie device,
- * so we should move the device before conn device is destroyed.
- */
-static int __match_tty(struct device *dev, void *data)
-{
-	return !strncmp(dev->bus_id, "rfcomm", 6);
-}
-
-static void del_conn(struct work_struct *work)
-{
-	struct hci_conn *conn = container_of(work, struct hci_conn, work);
-	struct hci_dev *hdev = conn->hdev;
-
-	while (1) {
-		struct device *dev;
-
-		dev = device_find_child(&conn->dev, NULL, __match_tty);
-		if (!dev)
-			break;
-		device_move(dev, NULL);
-		put_device(dev);
-	}
-
-	device_del(&conn->dev);
-	put_device(&conn->dev);
-	hci_dev_put(hdev);
-}
-
-void hci_conn_del_sysfs(struct hci_conn *conn)
-{
-	BT_DBG("conn %p", conn);
-
-	if (!device_is_registered(&conn->dev))
-		return;
-
-	INIT_WORK(&conn->work, del_conn);
-
-	queue_work(btdelconn, &conn->work);
-}
+static struct device_type bt_host = {
+	.name    = "host",
+	.groups  = bt_host_groups,
+	.release = bt_host_release,
+};
 
 int hci_register_sysfs(struct hci_dev *hdev)
 {
 	struct device *dev = &hdev->dev;
-	unsigned int i;
 	int err;
 
 	BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type);
 
-	dev->bus = &bt_bus;
+	dev->type = &bt_host;
+	dev->class = bt_class;
 	dev->parent = hdev->parent;
 
 	strlcpy(dev->bus_id, hdev->name, BUS_ID_SIZE);
 
-	dev->release = bt_release;
-
 	dev_set_drvdata(dev, hdev);
 
 	err = device_register(dev);
 	if (err < 0)
 		return err;
 
-	for (i = 0; bt_attrs[i]; i++)
-		if (device_create_file(dev, bt_attrs[i]) < 0)
-			BT_ERR("Failed to create device attribute");
-
 	return 0;
 }
 
@@ -410,59 +441,30 @@ void hci_unregister_sysfs(struct hci_dev *hdev)
 
 int __init bt_sysfs_init(void)
 {
-	int err;
-
 	btaddconn = create_singlethread_workqueue("btaddconn");
-	if (!btaddconn) {
-		err = -ENOMEM;
-		goto out;
-	}
+	if (!btaddconn)
+		return -ENOMEM;
 
 	btdelconn = create_singlethread_workqueue("btdelconn");
 	if (!btdelconn) {
-		err = -ENOMEM;
-		goto out_del;
-	}
-
-	bt_platform = platform_device_register_simple("bluetooth", -1, NULL, 0);
-	if (IS_ERR(bt_platform)) {
-		err = PTR_ERR(bt_platform);
-		goto out_platform;
+		destroy_workqueue(btaddconn);
+		return -ENOMEM;
 	}
 
-	err = bus_register(&bt_bus);
-	if (err < 0)
-		goto out_bus;
-
 	bt_class = class_create(THIS_MODULE, "bluetooth");
 	if (IS_ERR(bt_class)) {
-		err = PTR_ERR(bt_class);
-		goto out_class;
+		destroy_workqueue(btdelconn);
+		destroy_workqueue(btaddconn);
+		return PTR_ERR(bt_class);
 	}
 
 	return 0;
-
-out_class:
-	bus_unregister(&bt_bus);
-out_bus:
-	platform_device_unregister(bt_platform);
-out_platform:
-	destroy_workqueue(btdelconn);
-out_del:
-	destroy_workqueue(btaddconn);
-out:
-	return err;
 }
 
 void bt_sysfs_cleanup(void)
 {
 	destroy_workqueue(btaddconn);
-
 	destroy_workqueue(btdelconn);
 
 	class_destroy(bt_class);
-
-	bus_unregister(&bt_bus);
-
-	platform_device_unregister(bt_platform);
 }