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Bluetooth: Use struct delayed_work for HCI command timeout

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Since the whole HCI command, event and data packet processing has been
migrated to use workqueues instead of tasklets, it makes sense to use
struct delayed_work instead of struct timer_list for the timeout
handling. This patch converts the hdev->cmd_timer to use workqueue
as well.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Marcel Holtmann 2014-06-16 12:30:56 +02:00
parent d9fbd02be5
commit 65cc2b49db
3 changed files with 12 additions and 11 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
include/net/bluetooth/hci_core.h
View file

@ -273,7 +273,7 @@ struct hci_dev {
struct delayed_work service_cache;
struct timer_list cmd_timer;
struct delayed_work cmd_timer;
struct work_struct rx_work;
struct work_struct cmd_work;

17
net/bluetooth/hci_core.c
View file

@ -2432,7 +2432,7 @@ static int hci_dev_do_close(struct hci_dev *hdev)
hci_req_lock(hdev);
if (!test_and_clear_bit(HCI_UP, &hdev->flags)) {
del_timer_sync(&hdev->cmd_timer);
cancel_delayed_work_sync(&hdev->cmd_timer);
hci_req_unlock(hdev);
return 0;
}
@ -2488,7 +2488,7 @@ static int hci_dev_do_close(struct hci_dev *hdev)
/* Drop last sent command */
if (hdev->sent_cmd) {
del_timer_sync(&hdev->cmd_timer);
cancel_delayed_work_sync(&hdev->cmd_timer);
kfree_skb(hdev->sent_cmd);
hdev->sent_cmd = NULL;
}
@ -3205,9 +3205,10 @@ void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type)
}
/* HCI command timer function */
static void hci_cmd_timeout(unsigned long arg)
static void hci_cmd_timeout(struct work_struct *work)
{
struct hci_dev *hdev = (void *) arg;
struct hci_dev *hdev = container_of(work, struct hci_dev,
cmd_timer.work);
if (hdev->sent_cmd) {
struct hci_command_hdr *sent = (void *) hdev->sent_cmd->data;
@ -3884,7 +3885,7 @@ struct hci_dev *hci_alloc_dev(void)
init_waitqueue_head(&hdev->req_wait_q);
setup_timer(&hdev->cmd_timer, hci_cmd_timeout, (unsigned long) hdev);
INIT_DELAYED_WORK(&hdev->cmd_timer, hci_cmd_timeout);
hci_init_sysfs(hdev);
discovery_init(hdev);
@ -5287,10 +5288,10 @@ static void hci_cmd_work(struct work_struct *work)
atomic_dec(&hdev->cmd_cnt);
hci_send_frame(hdev, skb);
if (test_bit(HCI_RESET, &hdev->flags))
del_timer(&hdev->cmd_timer);
cancel_delayed_work(&hdev->cmd_timer);
else
mod_timer(&hdev->cmd_timer,
jiffies + HCI_CMD_TIMEOUT);
schedule_delayed_work(&hdev->cmd_timer,
HCI_CMD_TIMEOUT);
} else {
skb_queue_head(&hdev->cmd_q, skb);
queue_work(hdev->workqueue, &hdev->cmd_work);

4
net/bluetooth/hci_event.c
View file

@ -2709,7 +2709,7 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
}
if (opcode != HCI_OP_NOP)
del_timer(&hdev->cmd_timer);
cancel_delayed_work(&hdev->cmd_timer);
hci_req_cmd_complete(hdev, opcode, status);
@ -2800,7 +2800,7 @@ static void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb)
}
if (opcode != HCI_OP_NOP)
del_timer(&hdev->cmd_timer);
cancel_delayed_work(&hdev->cmd_timer);
if (ev->status ||
(hdev->sent_cmd && !bt_cb(hdev->sent_cmd)->req.event))