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Bluetooth: Check for supported white list before issuing commands

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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: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Marcel Holtmann 2015-11-01 09:39:48 +01:00
parent f6fc86f2c5
commit 2ab216a7a9
1 changed files with 11 additions and 6 deletions
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17
net/bluetooth/hci_core.c
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@ -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);