From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 26 Dec 2014 03:42:34 +0000 (+0100)
Subject: Bluetooth: Remove BlueFritz! specific check from initialization
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=0f3adeae6011fe82ccdee858dad6b7b2bd790add;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

Bluetooth: Remove BlueFritz! specific check from initialization

The AVM BlueFritz! USB controllers had a special handling in the
Bluetooth core when it comes to reading the supported commands.

Both drivers now set the HCI_QUIRK_BROKEN_LOCAL_COMMANDS and with
that it is no longer needed to look for vendor specific details.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 47f0311d1006..5ef5221c1813 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -623,10 +623,16 @@ static void hci_init2_req(struct hci_request *req, unsigned long opt)
 	if (lmp_le_capable(hdev))
 		le_setup(req);
 
-	/* AVM Berlin (31), aka "BlueFRITZ!", doesn't support the read
-	 * local supported commands HCI command.
+	/* All Bluetooth 1.2 and later controllers should support the
+	 * HCI command for reading the local supported commands.
+	 *
+	 * Unfortunately some controllers indicate Bluetooth 1.2 support,
+	 * but do not have support for this command. If that is the case,
+	 * the driver can quirk the behavior and skip reading the local
+	 * supported commands.
 	 */
-	if (hdev->manufacturer != 31 && hdev->hci_ver > BLUETOOTH_VER_1_1)
+	if (hdev->hci_ver > BLUETOOTH_VER_1_1 &&
+	    !test_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks))
 		hci_req_add(req, HCI_OP_READ_LOCAL_COMMANDS, 0, NULL);
 
 	if (lmp_ssp_capable(hdev)) {