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Bluetooth: hci_intel: Give priority to LPM packets 

Change the way to insert LPM packets into the txq.
Use skb_queue_head instead of skb_queue_tail to always prioritise LPM
packets over potential tx queue content.

Signed-off-by: Loic Poulain <loic.poulain@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Loic Poulain 2015-09-09 19:08:02 +02:00 committed by Marcel Holtmann
parent 9def9afde7
commit 30e945fb28
1 changed files with 6 additions and 3 deletions
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9
drivers/bluetooth/hci_intel.c
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@ -190,7 +190,8 @@ static int intel_lpm_suspend(struct hci_uart *hu)
set_bit(STATE_LPM_TRANSACTION, &intel->flags);
skb_queue_tail(&intel->txq, skb);
/* LPM flow is a priority, enqueue packet at list head */
skb_queue_head(&intel->txq, skb);
hci_uart_tx_wakeup(hu);
intel_wait_lpm_transaction(hu);
@ -233,7 +234,8 @@ static int intel_lpm_resume(struct hci_uart *hu)
set_bit(STATE_LPM_TRANSACTION, &intel->flags);
skb_queue_tail(&intel->txq, skb);
/* LPM flow is a priority, enqueue packet at list head */
skb_queue_head(&intel->txq, skb);
hci_uart_tx_wakeup(hu);
intel_wait_lpm_transaction(hu);
@ -272,7 +274,8 @@ static int intel_lpm_host_wake(struct hci_uart *hu)
sizeof(lpm_resume_ack));
bt_cb(skb)->pkt_type = HCI_LPM_PKT;
skb_queue_tail(&intel->txq, skb);
/* LPM flow is a priority, enqueue packet at list head */
skb_queue_head(&intel->txq, skb);
hci_uart_tx_wakeup(hu);
bt_dev_dbg(hu->hdev, "Resumed by controller");