From: Patrick Steinhardt ps@pks.im
Starting with the upgrade to v5.8-rc3, I've noticed I wasn't able to connect to my Bluetooth headset properly anymore. While connecting to the device would eventually succeed, bluetoothd seemed to be confused about the current connection state where the state was flapping hence and forth. Bisecting this issue led to commit 3ca44c16b0dc (Bluetooth: Consolidate encryption handling in hci_encrypt_cfm, 2020-05-19), which refactored `hci_encrypt_cfm` to also handle updating the connection state.
The commit in question changed the code to call `hci_connect_cfm` inside `hci_encrypt_cfm` and to change the connection state. But with the conversion, we now only update the connection state if a status was set already. In fact, the reverse should be true: the status should be updated if no status is yet set. So let's fix the isuse by reversing the condition.
Fixes: 3ca44c16b0dc ("Bluetooth: Consolidate encryption handling in hci_encrypt_cfm") Signed-off-by: Patrick Steinhardt ps@pks.im Acked-by: Luiz Augusto von Dentz luiz.von.dentz@intel.com Signed-off-by: Marcel Holtmann marcel@holtmann.org (cherry picked from commit 339ddaa626995bc6218972ca241471f3717cc5f4) Cc: stable@vger.kernel.org # 4.4 --- include/net/bluetooth/hci_core.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 0269a772bfe1..dfa672b6f89d 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -1241,7 +1241,7 @@ static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status) __u8 encrypt;
if (conn->state == BT_CONFIG) { - if (status) + if (!status) conn->state = BT_CONNECTED;
hci_connect_cfm(conn, status);