From bb3e0a336ae683332c1282d1e84b371b65aba1b4 Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Mon, 7 Jul 2014 13:24:58 +0300 Subject: [PATCH] Bluetooth: Update discovery state earlier in hci_discovery_set_state In a subsequent patch the hci_update_background_scan() function will depend on being able to know the current discovery state. For this to be possible we need to set the new state early in the function. Since we also need to check what the old state was this patch introduces an extra variable for tracking it. Signed-off-by: Johan Hedberg Signed-off-by: Marcel Holtmann --- net/bluetooth/hci_core.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 623ffe0..6a0e39f 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -1903,16 +1903,20 @@ bool hci_discovery_active(struct hci_dev *hdev) void hci_discovery_set_state(struct hci_dev *hdev, int state) { + int old_state = hdev->discovery.state; + BT_DBG("%s state %u -> %u", hdev->name, hdev->discovery.state, state); - if (hdev->discovery.state == state) + if (old_state == state) return; + hdev->discovery.state = state; + switch (state) { case DISCOVERY_STOPPED: hci_update_background_scan(hdev); - if (hdev->discovery.state != DISCOVERY_STARTING) + if (old_state != DISCOVERY_STARTING) mgmt_discovering(hdev, 0); break; case DISCOVERY_STARTING: @@ -1925,8 +1929,6 @@ void hci_discovery_set_state(struct hci_dev *hdev, int state) case DISCOVERY_STOPPING: break; } - - hdev->discovery.state = state; } void hci_inquiry_cache_flush(struct hci_dev *hdev) -- 2.7.4