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authorMarcel Holtmann <marcel@holtmann.org>2015-11-01 09:39:48 +0100
committerMarcel Holtmann <marcel@holtmann.org>2015-11-05 04:03:21 +0100
commit2ab216a7a9ca89d77388ad3f22a31f752dec5897 (patch)
tree14e8f93c2dc34092e179b024e5dc19d33a80adf8 /net
parentf6fc86f2c572ff1d192e8b5d5bf339ba06ebe3e4 (diff)
downloadlinux-2ab216a7a9ca89d77388ad3f22a31f752dec5897.tar.bz2
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: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Diffstat (limited to 'net')
-rw-r--r--net/bluetooth/hci_core.c17
1 files changed, 11 insertions, 6 deletions
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 83a6aacfab31..62edbf1b114e 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -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);