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Bluetooth: Use struct delayed_work for HCI command timeout 

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))