Bluetooth: Improve comments on the HCI_Delete_Store_Link_Key issue
Some Bluetooth controllers doesn't support this command so we first need to check for its support before sending it. This patch adds a lengthful commentary about this. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>hifive-unleashed-5.1
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@ -597,7 +597,15 @@ static void hci_init3_req(struct hci_request *req, unsigned long opt)
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struct hci_dev *hdev = req->hdev;
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struct hci_dev *hdev = req->hdev;
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u8 p;
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u8 p;
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/* Only send HCI_Delete_Stored_Link_Key if it is supported */
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/* Some Broadcom based Bluetooth controllers do not support the
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* Delete Stored Link Key command. They are clearly indicating its
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* absence in the bit mask of supported commands.
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*
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* Check the supported commands and only if the the command is marked
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* as supported send it. If not supported assume that the controller
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* does not have actual support for stored link keys which makes this
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* command redundant anyway.
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*/
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if (hdev->commands[6] & 0x80) {
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if (hdev->commands[6] & 0x80) {
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struct hci_cp_delete_stored_link_key cp;
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struct hci_cp_delete_stored_link_key cp;
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