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authorMarcel Holtmann <marcel@holtmann.org>2019-09-04 20:13:08 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-10-05 12:27:36 +0200
commit4f1af2bcab137526c66ea92d3026e3f2879281e2 (patch)
tree0173c22f8f644d2ed444d359222f8527b6c812b2 /net/bluetooth
parent5f090d837b1f61ba12780a8b8196b69a00d7cd70 (diff)
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 <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net/bluetooth')
-rw-r--r--net/bluetooth/hci_event.c5
-rw-r--r--net/bluetooth/l2cap_core.c9
2 files changed, 1 insertions, 13 deletions
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index c4e94f34d048..37fe2b158c2a 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -5062,11 +5062,6 @@ 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 8cfba78d26f6..c25f1e4846cd 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -5266,14 +5266,7 @@ 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