This is a note to let you know that I've just added the patch titled

Bluetooth: btqcomsmd: Add support for BD address setup

to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: bluetooth-btqcomsmd-add-support-for-bd-address-setup.patch and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From 6e518111060c2290427d79c43d4add9600ad852b Mon Sep 17 00:00:00 2001

From: Loic Poulain loic.poulain@linaro.org Date: Tue, 5 Sep 2017 12:26:03 +0200 Subject: Bluetooth: btqcomsmd: Add support for BD address setup

From: Loic Poulain loic.poulain@linaro.org

commit 6e518111060c2290427d79c43d4add9600ad852b upstream.

This patch implements the hdev setup function since wcnss-bt does not have persistent memory to store an allocated BD address. The device is therefore marked as unconfigured if no BD address has been previously retrieved.

Signed-off-by: Loic Poulain loic.poulain@linaro.org Signed-off-by: Marcel Holtmann marcel@holtmann.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- drivers/bluetooth/btqcomsmd.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+)

--- a/drivers/bluetooth/btqcomsmd.c +++ b/drivers/bluetooth/btqcomsmd.c @@ -26,6 +26,7 @@ struct btqcomsmd { struct hci_dev *hdev;

+ bdaddr_t bdaddr; struct rpmsg_endpoint *acl_channel; struct rpmsg_endpoint *cmd_channel; }; @@ -100,6 +101,38 @@ static int btqcomsmd_close(struct hci_de return 0; }

+static int btqcomsmd_setup(struct hci_dev *hdev) +{ + struct btqcomsmd *btq = hci_get_drvdata(hdev); + struct sk_buff *skb; + int err; + + skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) + return PTR_ERR(skb); + kfree_skb(skb); + + /* Devices do not have persistent storage for BD address. If no + * BD address has been retrieved during probe, mark the device + * as having an invalid BD address. + */ + if (!bacmp(&btq->bdaddr, BDADDR_ANY)) { + set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); + return 0; + } + + /* When setting a configured BD address fails, mark the device + * as having an invalid BD address. + */ + err = qca_set_bdaddr_rome(hdev, &btq->bdaddr); + if (err) { + set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); + return 0; + } + + return 0; +} + static int btqcomsmd_probe(struct platform_device *pdev) { struct btqcomsmd *btq; @@ -135,6 +168,7 @@ static int btqcomsmd_probe(struct platfo hdev->open = btqcomsmd_open; hdev->close = btqcomsmd_close; hdev->send = btqcomsmd_send; + hdev->setup = btqcomsmd_setup; hdev->set_bdaddr = qca_set_bdaddr_rome;

ret = hci_register_dev(hdev);

Patches currently in stable-queue which might be from loic.poulain@linaro.org are

queue-4.14/bluetooth-btqcomsmd-add-support-for-bd-address-setup.patch