diff options
| author |   Abhishek Pandit-Subedi <abhishekpandit@chromium.org> | 2021-03-03 08:34:04 -0800 |
|---|---|---|
| committer |   Marcel Holtmann <marcel@holtmann.org> | 2021-03-03 17:49:29 +0100 |
| commit | e5b0ad69c97a04f42834b24a6a0323ab15ccc9bb (patch) | |
| tree | 7138e190d246a6dfce76b9d117f086abffee9e53 /net/bluetooth/hci_event.c | |
| parent | Bluetooth: Notify suspend on le conn failed (diff) | |
| download | linux-dev-e5b0ad69c97a04f42834b24a6a0323ab15ccc9bb.tar.xz linux-dev-e5b0ad69c97a04f42834b24a6a0323ab15ccc9bb.zip | |
Bluetooth: Remove unneeded commands for suspend
During suspend, there are a few scan enable and set event filter
commands that don't need to be sent unless there are actual BR/EDR
devices capable of waking the system. Check the HCI_PSCAN bit before
writing scan enable and use a new dev flag, HCI_EVENT_FILTER_CONFIGURED
to control whether to clear the event filter.
Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Reviewed-by: Archie Pusaka <apusaka@chromium.org>
Reviewed-by: Alain Michaud <alainm@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/bluetooth/hci_event.c')
| -rw-r--r-- | net/bluetooth/hci_event.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index 67668be3461e..f4a734f8a9ac 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -395,6 +395,29 @@ done: hci_dev_unlock(hdev); } +static void hci_cc_set_event_filter(struct hci_dev *hdev, struct sk_buff *skb) +{ + __u8 status = *((__u8 *)skb->data); + struct hci_cp_set_event_filter *cp; + void *sent; + + BT_DBG("%s status 0x%2.2x", hdev->name, status); + + if (status) + return; + + sent = hci_sent_cmd_data(hdev, HCI_OP_SET_EVENT_FLT); + if (!sent) + return; + + cp = (struct hci_cp_set_event_filter *)sent; + + if (cp->flt_type == HCI_FLT_CLEAR_ALL) + hci_dev_clear_flag(hdev, HCI_EVENT_FILTER_CONFIGURED); + else + hci_dev_set_flag(hdev, HCI_EVENT_FILTER_CONFIGURED); +} + static void hci_cc_read_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb) { struct hci_rp_read_class_of_dev *rp = (void *) skb->data; @@ -3328,6 +3351,10 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb, hci_cc_write_scan_enable(hdev, skb); break; + case HCI_OP_SET_EVENT_FLT: + hci_cc_set_event_filter(hdev, skb); + break; + case HCI_OP_READ_CLASS_OF_DEV: hci_cc_read_class_of_dev(hdev, skb); break; |