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| author | Andre Guedes <andre.guedes@openbossa.org> | 2011-05-26 16:23:53 -0300 |
|---|---|---|
| committer | Gustavo F. Padovan <padovan@profusion.mobi> | 2011-06-08 16:58:17 -0300 |
| commit | 3581508571b513ed2e66d71f9708d6be907460fd (patch) | |
| tree | 070c5b393058deba57d775a143fc91cb5d010bb3 /net/bluetooth | |
| parent | eb9d91f5ae9c14583c49223e49f7e88f77b84749 (diff) | |
| download | op-kernel-dev-3581508571b513ed2e66d71f9708d6be907460fd.zip op-kernel-dev-3581508571b513ed2e66d71f9708d6be907460fd.tar.gz | |
Bluetooth: Advertising entries lifetime
This patch adds a timer to clear 'adv_entries' after three minutes.
After some amount of time, the advertising entries cached during
the last LE scan should be considered expired and they should be
removed from the advertising cache.
It was chosen a three minutes timeout as an initial attempt. This
value might change in future.
Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Diffstat (limited to 'net/bluetooth')
| -rw-r--r-- | net/bluetooth/hci_core.c | 14 | ||||
| -rw-r--r-- | net/bluetooth/hci_event.c | 6 |
2 files changed, 19 insertions, 1 deletions
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index cc40f22..ff6b784 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -1202,6 +1202,17 @@ int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash, return 0; } +static void hci_clear_adv_cache(unsigned long arg) +{ + struct hci_dev *hdev = (void *) arg; + + hci_dev_lock(hdev); + + hci_adv_entries_clear(hdev); + + hci_dev_unlock(hdev); +} + int hci_adv_entries_clear(struct hci_dev *hdev) { struct adv_entry *entry, *tmp; @@ -1330,6 +1341,8 @@ int hci_register_dev(struct hci_dev *hdev) INIT_LIST_HEAD(&hdev->remote_oob_data); INIT_LIST_HEAD(&hdev->adv_entries); + setup_timer(&hdev->adv_timer, hci_clear_adv_cache, + (unsigned long) hdev); INIT_WORK(&hdev->power_on, hci_power_on); INIT_WORK(&hdev->power_off, hci_power_off); @@ -1403,6 +1416,7 @@ int hci_unregister_dev(struct hci_dev *hdev) hci_unregister_sysfs(hdev); hci_del_off_timer(hdev); + del_timer(&hdev->adv_timer); destroy_workqueue(hdev->workqueue); diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index 056f7b2..a90200c 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -856,8 +856,12 @@ static void hci_cc_le_set_scan_enable(struct hci_dev *hdev, hci_dev_lock(hdev); - if (cp->enable == 0x01) + if (cp->enable == 0x01) { + del_timer(&hdev->adv_timer); hci_adv_entries_clear(hdev); + } else if (cp->enable == 0x00) { + mod_timer(&hdev->adv_timer, jiffies + ADV_CLEAR_TIMEOUT); + } hci_dev_unlock(hdev); } |
