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Commit 3243553f authored by Johan Hedberg's avatar Johan Hedberg Committed by Gustavo Padovan
Browse files

Bluetooth: Convert power off mechanism to use delayed_work 



The power off code doesn't need to use its own custom timer since the
delayed_work API provides the exact same functionality.

Signed-off-by: default avatarJohan Hedberg <johan.hedberg@intel.com>
Signed-off-by: default avatarGustavo F. Padovan <padovan@profusion.mobi>
parent 2d7cee58

include/net/bluetooth/hci_core.h

+1 −2
Original line number Diff line number Diff line
@@ -193,8 +193,7 @@ struct hci_dev { 
	struct workqueue_struct	*workqueue;



	struct work_struct	power_on;

	struct work_struct	power_off;

	struct timer_list	off_timer;

	struct delayed_work	power_off;



	__u16			discov_timeout;

	struct delayed_work	discov_off;

net/bluetooth/hci_core.c

+13 −26
Original line number Diff line number Diff line
@@ -600,6 +600,9 @@ static int hci_dev_do_close(struct hci_dev *hdev) 
		hdev->discov_timeout = 0;

	}



	if (test_and_clear_bit(HCI_AUTO_OFF, &hdev->flags))

		cancel_delayed_work_sync(&hdev->power_off);



	hci_dev_lock_bh(hdev);

	inquiry_cache_flush(hdev);

	hci_conn_hash_flush(hdev);
@@ -819,7 +822,8 @@ int hci_get_dev_list(void __user *arg) 


	read_lock_bh(&hci_dev_list_lock);

	list_for_each_entry(hdev, &hci_dev_list, list) {

		hci_del_off_timer(hdev);

		if (test_and_clear_bit(HCI_AUTO_OFF, &hdev->flags))

			cancel_delayed_work_sync(&hdev->power_off);



		if (!test_bit(HCI_MGMT, &hdev->flags))

			set_bit(HCI_PAIRABLE, &hdev->flags);
@@ -854,7 +858,8 @@ int hci_get_dev_info(void __user *arg) 
	if (!hdev)

		return -ENODEV;



	hci_del_off_timer(hdev);

	if (test_and_clear_bit(HCI_AUTO_OFF, &hdev->flags))

		cancel_delayed_work_sync(&hdev->power_off);



	if (!test_bit(HCI_MGMT, &hdev->flags))

		set_bit(HCI_PAIRABLE, &hdev->flags);
@@ -938,8 +943,8 @@ static void hci_power_on(struct work_struct *work) 
		return;



	if (test_bit(HCI_AUTO_OFF, &hdev->flags))

		mod_timer(&hdev->off_timer,

				jiffies + msecs_to_jiffies(AUTO_OFF_TIMEOUT));

		queue_delayed_work(hdev->workqueue, &hdev->power_off,

					msecs_to_jiffies(AUTO_OFF_TIMEOUT));



	if (test_and_clear_bit(HCI_SETUP, &hdev->flags))

		mgmt_index_added(hdev->id);
@@ -947,30 +952,14 @@ static void hci_power_on(struct work_struct *work) 


static void hci_power_off(struct work_struct *work)

{

	struct hci_dev *hdev = container_of(work, struct hci_dev, power_off);



	BT_DBG("%s", hdev->name);



	hci_dev_close(hdev->id);

}



static void hci_auto_off(unsigned long data)

{

	struct hci_dev *hdev = (struct hci_dev *) data;

	struct hci_dev *hdev = container_of(work, struct hci_dev,

							power_off.work);



	BT_DBG("%s", hdev->name);



	clear_bit(HCI_AUTO_OFF, &hdev->flags);



	queue_work(hdev->workqueue, &hdev->power_off);

}



void hci_del_off_timer(struct hci_dev *hdev)

{

	BT_DBG("%s", hdev->name);



	clear_bit(HCI_AUTO_OFF, &hdev->flags);

	del_timer(&hdev->off_timer);

	hci_dev_close(hdev->id);

}



static void hci_discov_off(struct work_struct *work)
@@ -1505,8 +1494,7 @@ int hci_register_dev(struct hci_dev *hdev) 
						(unsigned long) hdev);



	INIT_WORK(&hdev->power_on, hci_power_on);

	INIT_WORK(&hdev->power_off, hci_power_off);

	setup_timer(&hdev->off_timer, hci_auto_off, (unsigned long) hdev);

	INIT_DELAYED_WORK(&hdev->power_off, hci_power_off);



	INIT_DELAYED_WORK(&hdev->discov_off, hci_discov_off);
@@ -1583,7 +1571,6 @@ void hci_unregister_dev(struct hci_dev *hdev) 


	hci_del_sysfs(hdev);



	hci_del_off_timer(hdev);

	del_timer(&hdev->adv_timer);



	destroy_workqueue(hdev->workqueue);

net/bluetooth/mgmt.c

+5 −3
Original line number Diff line number Diff line
@@ -150,7 +150,8 @@ static int read_index_list(struct sock *sk) 


	i = 0;

	list_for_each_entry(d, &hci_dev_list, list) {

		hci_del_off_timer(d);

		if (test_and_clear_bit(HCI_AUTO_OFF, &d->flags))

			cancel_delayed_work_sync(&d->power_off);



		if (test_bit(HCI_SETUP, &d->flags))

			continue;
@@ -180,7 +181,8 @@ static int read_controller_info(struct sock *sk, u16 index) 
	if (!hdev)

		return cmd_status(sk, index, MGMT_OP_READ_INFO, ENODEV);



	hci_del_off_timer(hdev);

	if (test_and_clear_bit(HCI_AUTO_OFF, &hdev->flags))

		cancel_delayed_work_sync(&hdev->power_off);



	hci_dev_lock_bh(hdev);
@@ -337,7 +339,7 @@ static int set_powered(struct sock *sk, u16 index, unsigned char *data, u16 len) 
	if (cp->val)

		queue_work(hdev->workqueue, &hdev->power_on);

	else

		queue_work(hdev->workqueue, &hdev->power_off);

		queue_work(hdev->workqueue, &hdev->power_off.work);



	err = 0;