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authorMarcel Holtmann <marcel@holtmann.org>2019-09-04 20:13:08 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-10-01 09:01:34 +0200
commite6d6a001ed5a4c8799c074745b938b3e22bd97b8 (patch)
treea2060593eec025e3b408c0e26981bcc3157e01c9 /net
parent5e408889e4af03a27b77cf4635934fefb9f4afab (diff)
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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')
-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 17c50a98e7f7..9e4fcf406d9c 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -5588,11 +5588,6 @@ 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 32d2be9d6858..771e3e17bb6a 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -5297,14 +5297,7 @@ 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