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authorJohan Hedberg <johan.hedberg@intel.com>2014-02-28 22:26:13 +0400
committerMarcel Holtmann <marcel@holtmann.org>2014-02-28 22:28:17 +0400
commit81ad6fd9698f659dbabdc6cd3e1667a98eb2be3b (patch)
treec60df62c7d343cf39dd9927f99fcd2b54e7b0785
parent317ac8cb3f9fb58b9ec5764b766a449004ab2a62 (diff)
downloadlinux-81ad6fd9698f659dbabdc6cd3e1667a98eb2be3b.tar.xz
Bluetooth: Remove unnecessary stop_scan_complete function
The stop_scan_complete function was used as an intermediate step before doing the actual connection creation. Since we're using hci_request there's no reason to have this extra function around, i.e. we can simply put both HCI commands into the same request. The single task that the intermediate function had, i.e. indicating discovery as stopped is now taken care of by a new HCI_LE_SCAN_INTERRUPTED flag which allows us to do the discovery state update when the stop scan command completes. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
-rw-r--r--include/net/bluetooth/hci.h1
-rw-r--r--net/bluetooth/hci_conn.c51
-rw-r--r--net/bluetooth/hci_event.c7
3 files changed, 16 insertions, 43 deletions
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 0409f0119d2b..be150cf8cd43 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -140,6 +140,7 @@ enum {
HCI_FAST_CONNECTABLE,
HCI_BREDR_ENABLED,
HCI_6LOWPAN_ENABLED,
+ HCI_LE_SCAN_INTERRUPTED,
};
/* A mask for the flags that are supposed to remain when a reset happens
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 5330fcfde93d..7c713c4675ba 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -605,44 +605,6 @@ static void hci_req_add_le_create_conn(struct hci_request *req,
conn->state = BT_CONNECT;
}
-static void stop_scan_complete(struct hci_dev *hdev, u8 status)
-{
- struct hci_request req;
- struct hci_conn *conn;
- int err;
-
- conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT);
- if (!conn)
- return;
-
- if (status) {
- BT_DBG("HCI request failed to stop scanning: status 0x%2.2x",
- status);
-
- hci_dev_lock(hdev);
- hci_le_conn_failed(conn, status);
- hci_dev_unlock(hdev);
- return;
- }
-
- /* Since we may have prematurely stopped discovery procedure, we should
- * update discovery state.
- */
- hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
-
- hci_req_init(&req, hdev);
-
- hci_req_add_le_create_conn(&req, conn);
-
- err = hci_req_run(&req, create_le_conn_complete);
- if (err) {
- hci_dev_lock(hdev);
- hci_le_conn_failed(conn, HCI_ERROR_MEMORY_EXCEEDED);
- hci_dev_unlock(hdev);
- return;
- }
-}
-
struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
u8 dst_type, u8 sec_level, u8 auth_type)
{
@@ -721,16 +683,19 @@ struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
hci_req_init(&req, hdev);
/* If controller is scanning, we stop it since some controllers are
- * not able to scan and connect at the same time.
+ * not able to scan and connect at the same time. Also set the
+ * HCI_LE_SCAN_INTERRUPTED flag so that the command complete
+ * handler for scan disabling knows to set the correct discovery
+ * state.
*/
if (test_bit(HCI_LE_SCAN, &hdev->dev_flags)) {
hci_req_add_le_scan_disable(&req);
- err = hci_req_run(&req, stop_scan_complete);
- } else {
- hci_req_add_le_create_conn(&req, conn);
- err = hci_req_run(&req, create_le_conn_complete);
+ set_bit(HCI_LE_SCAN_INTERRUPTED, &hdev->dev_flags);
}
+ hci_req_add_le_create_conn(&req, conn);
+
+ err = hci_req_run(&req, create_le_conn_complete);
if (err) {
hci_conn_del(conn);
return ERR_PTR(err);
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index e3335b03c992..c3b0a08f5ab4 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -1024,6 +1024,13 @@ static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
cancel_delayed_work(&hdev->le_scan_disable);
clear_bit(HCI_LE_SCAN, &hdev->dev_flags);
+ /* The HCI_LE_SCAN_INTERRUPTED flag indicates that we
+ * interrupted scanning due to a connect request. Mark
+ * therefore discovery as stopped.
+ */
+ if (test_and_clear_bit(HCI_LE_SCAN_INTERRUPTED,
+ &hdev->dev_flags))
+ hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
break;
default: