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Commit 2ab216a7 authored by Marcel Holtmann's avatar Marcel Holtmann
Browse files

Bluetooth: Check for supported white list before issuing commands 



The white list commands might not be implemented if the controller does
not actually support the white list. So check the supported commands
first before issuing these commands. Not supporting the white list is
the same as supporting a white list with zero size.

Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: default avatarJohan Hedberg <johan.hedberg@intel.com>
parent f6fc86f2

net/bluetooth/hci_core.c

+11 −6
Original line number Diff line number Diff line
@@ -508,12 +508,6 @@ static void le_setup(struct hci_request *req) 
	/* Read LE Supported States */

	hci_req_add(req, HCI_OP_LE_READ_SUPPORTED_STATES, 0, NULL);



	/* Read LE White List Size */

	hci_req_add(req, HCI_OP_LE_READ_WHITE_LIST_SIZE, 0, NULL);



	/* Clear LE White List */

	hci_req_add(req, HCI_OP_LE_CLEAR_WHITE_LIST, 0, NULL);



	/* LE-only controllers have LE implicitly enabled */

	if (!lmp_bredr_capable(hdev))

		hci_dev_set_flag(hdev, HCI_LE_ENABLED);
@@ -832,6 +826,17 @@ static void hci_init3_req(struct hci_request *req, unsigned long opt) 
			hci_req_add(req, HCI_OP_LE_READ_ADV_TX_POWER, 0, NULL);

		}



		if (hdev->commands[26] & 0x40) {

			/* Read LE White List Size */

			hci_req_add(req, HCI_OP_LE_READ_WHITE_LIST_SIZE,

				    0, NULL);

		}



		if (hdev->commands[26] & 0x80) {

			/* Clear LE White List */

			hci_req_add(req, HCI_OP_LE_CLEAR_WHITE_LIST, 0, NULL);

		}



		if (hdev->le_features[0] & HCI_LE_DATA_LEN_EXT) {

			/* Read LE Maximum Data Length */

			hci_req_add(req, HCI_OP_LE_READ_MAX_DATA_LEN, 0, NULL);