linux-kernel - [PATCH 3.19 006/175] Bluetooth: Fix reporting invalid RSSI for LE devices

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Message-Id: <20150304061027.287670129@linuxfoundation.org>
Date:	Tue,  3 Mar 2015 22:13:04 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Szymon Janc <szymon.janc@...to.com>,
	Marcel Holtmann <marcel@...tmann.org>
Subject: [PATCH 3.19 006/175] Bluetooth: Fix reporting invalid RSSI for LE devices

3.19-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Szymon Janc <szymon.janc@...to.com>

commit 91200e9f3e76af2652952e73ce5d9913f1c987c6 upstream.

Start Discovery was reporting 0 RSSI for invalid RSSI only for
BR/EDR devices. LE devices were reported with RSSI 127.

Signed-off-by: Szymon Janc <szymon.janc@...to.com>
Signed-off-by: Marcel Holtmann <marcel@...tmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 net/bluetooth/mgmt.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -7066,7 +7066,8 @@ void mgmt_device_found(struct hci_dev *h
 	 * However when using service discovery, the value 127 will be
 	 * returned when the RSSI is not available.
 	 */
-	if (rssi == HCI_RSSI_INVALID && !hdev->discovery.report_invalid_rssi)
+	if (rssi == HCI_RSSI_INVALID && !hdev->discovery.report_invalid_rssi &&
+	    link_type == ACL_LINK)
 		rssi = 0;
 
 	bacpy(&ev->addr.bdaddr, bdaddr);


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