[PATCH 6.4 672/800] Bluetooth: fix invalid-bdaddr quirk for non-persistent setup

Greg Kroah-Hartman
2023-07-16T20:24:15Z

From: Johan Hovold <johan+linaro@kernel.org>

[ Upstream commit 0cb7365850bacb8c2a9975cae672d65714d8daa1 ]

Devices that lack persistent storage for the device address can indicate
this by setting the HCI_QUIRK_INVALID_BDADDR which causes the controller
to be marked as unconfigured until user space has set a valid address.

Once configured, the device address must be set on every setup for
controllers with HCI_QUIRK_NON_PERSISTENT_SETUP to avoid marking the
controller as unconfigured and requiring the address to be set again.

Fixes: 740011cfe948 ("Bluetooth: Add new quirk for non-persistent setup settings")
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/bluetooth/hci_sync.c | 28 +++++++++++-----------------
1 file changed, 11 insertions(+), 17 deletions(-)

diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c
index 804cde43b4e02..b5b1b610df335 100644
--- a/net/bluetooth/hci_sync.c
+++ b/net/bluetooth/hci_sync.c
@@ -4626,23 +4626,17 @@ static int hci_dev_setup_sync(struct hci_dev *hdev)
invalid_bdaddr = test_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);

if (!ret) {
- if (test_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks)) {
- if (!bacmp(&hdev->public_addr, BDADDR_ANY))
- hci_dev_get_bd_addr_from_property(hdev);
-
- if (bacmp(&hdev->public_addr, BDADDR_ANY) &&
- hdev->set_bdaddr) {
- ret = hdev->set_bdaddr(hdev,
- &hdev->public_addr);
-
- /* If setting of the BD_ADDR from the device
- * property succeeds, then treat the address
- * as valid even if the invalid BD_ADDR
- * quirk indicates otherwise.
- */
- if (!ret)
- invalid_bdaddr = false;
- }
+ if (test_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks) &&
+ !bacmp(&hdev->public_addr, BDADDR_ANY))
+ hci_dev_get_bd_addr_from_property(hdev);
+
+ if ((invalid_bdaddr ||
+ test_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks)) &&
+ bacmp(&hdev->public_addr, BDADDR_ANY) &&
+ hdev->set_bdaddr) {
+ ret = hdev->set_bdaddr(hdev, &hdev->public_addr);
+ if (!ret)
+ invalid_bdaddr = false;
}
}

--
2.39.2