From: Marcel Holtmann Date: Wed, 4 Sep 2019 18:13:08 +0000 (+0200) Subject: Revert "Bluetooth: validate BLE connection interval updates" X-Git-Tag: v4.19.76~63 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2af977b0d1db2c424edcf0fa5fc4e3b7e2cde9b5;p=platform%2Fkernel%2Flinux-rpi.git Revert "Bluetooth: validate BLE connection interval updates" [ Upstream commit 68d19d7d995759b96169da5aac313363f92a9075 ] This reverts commit c49a8682fc5d298d44e8d911f4fa14690ea9485e. There are devices which require low connection intervals for usable operation including keyboards and mice. Forcing a static connection interval for these types of devices has an impact in latency and causes a regression. Signed-off-by: Marcel Holtmann Signed-off-by: Johan Hedberg Signed-off-by: Sasha Levin --- diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index 0adcddb..3e7badb 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -5545,11 +5545,6 @@ static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev, return send_conn_param_neg_reply(hdev, handle, HCI_ERROR_UNKNOWN_CONN_ID); - if (min < hcon->le_conn_min_interval || - max > hcon->le_conn_max_interval) - return send_conn_param_neg_reply(hdev, handle, - HCI_ERROR_INVALID_LL_PARAMS); - if (hci_check_conn_params(min, max, latency, timeout)) return send_conn_param_neg_reply(hdev, handle, HCI_ERROR_INVALID_LL_PARAMS); diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index a54dadf..260ef54 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -5287,14 +5287,7 @@ static inline int l2cap_conn_param_update_req(struct l2cap_conn *conn, memset(&rsp, 0, sizeof(rsp)); - if (min < hcon->le_conn_min_interval || - max > hcon->le_conn_max_interval) { - BT_DBG("requested connection interval exceeds current bounds."); - err = -EINVAL; - } else { - err = hci_check_conn_params(min, max, latency, to_multiplier); - } - + err = hci_check_conn_params(min, max, latency, to_multiplier); if (err) rsp.result = cpu_to_le16(L2CAP_CONN_PARAM_REJECTED); else