Re: [PATCH v3 1/2] Bluetooth: Keep msec in DISCOV_INTERLEAVED_TIMEOUT

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Hi Lukasz,

On 03/27/2014 12:49 PM, Lukasz Rymanowski wrote:
Keep msec instead of jiffies in this define. This is needed by folowing
patch where we want this timeout to be exposed in debugfs.

Note: This default value comes from BT Spec. 4.0 Vol 3 chapter 13.2.1.

Signed-off-by: Lukasz Rymanowski <lukasz.rymanowski@xxxxxxxxx>
---
  include/net/bluetooth/hci_core.h |  2 +-
  net/bluetooth/mgmt.c             | 13 +++++++++----
  2 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index e2bfcda..1c6776a 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1210,7 +1210,7 @@ void hci_sock_dev_event(struct hci_dev *hdev, int event);
  #define DISCOV_LE_SCAN_WIN		0x12
  #define DISCOV_LE_SCAN_INT		0x12
  #define DISCOV_LE_TIMEOUT		msecs_to_jiffies(10240)
-#define DISCOV_INTERLEAVED_TIMEOUT	msecs_to_jiffies(5120)
+#define DISCOV_INTERLEAVED_TIMEOUT	5120 /* msec */
  #define DISCOV_INTERLEAVED_INQUIRY_LEN	0x04
  #define DISCOV_BREDR_INQUIRY_LEN	0x08

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 6487c73..e6d906f 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -3352,6 +3352,8 @@ static int mgmt_start_discovery_failed(struct hci_dev *hdev, u8 status)

  static void start_discovery_complete(struct hci_dev *hdev, u8 status)
  {
+	unsigned long timeout = 0;
+
  	BT_DBG("status %d", status);

  	if (status) {
@@ -3367,13 +3369,11 @@ static void start_discovery_complete(struct hci_dev *hdev, u8 status)

  	switch (hdev->discovery.type) {
  	case DISCOV_TYPE_LE:
-		queue_delayed_work(hdev->workqueue, &hdev->le_scan_disable,
-				   DISCOV_LE_TIMEOUT);
+		timeout = DISCOV_LE_TIMEOUT;
  		break;

  	case DISCOV_TYPE_INTERLEAVED:
-		queue_delayed_work(hdev->workqueue, &hdev->le_scan_disable,
-				   DISCOV_INTERLEAVED_TIMEOUT);
+		timeout = msecs_to_jiffies(DISCOV_INTERLEAVED_TIMEOUT);
  		break;

  	case DISCOV_TYPE_BREDR:
@@ -3382,6 +3382,11 @@ static void start_discovery_complete(struct hci_dev *hdev, u8 status)
  	default:
  		BT_ERR("Invalid discovery type %d", hdev->discovery.type);
  	}
+
+	if (!timeout)
+		return;
+
+	queue_delayed_work(hdev->workqueue, &hdev->le_scan_disable, timeout);

You may want to do like this here:

if (timeout)
	queue_delayed_work(hdev->workqueue, hdev->le_scan_disable,
			   timeout);

BR,

Andre
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