This is a note to let you know that I've just added the patch titled
Bluetooth: Remove pending ACL connection attempts
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
bluetooth-remove-pending-acl-connection-attempts.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit dd5a3bea42c5b3981d40f82ad4bac744b4f4f44c
Author: Jonas Dreßler <verdre@xxxxxxx>
Date: Tue Feb 6 12:08:14 2024 +0100
Bluetooth: Remove pending ACL connection attempts
[ Upstream commit 4aa42119d971603dc9e4d8cf4f53d5fcf082ea7d ]
With the last commit we moved to using the hci_sync queue for "Create
Connection" requests, removing the need for retrying the paging after
finished/failed "Create Connection" requests and after the end of
inquiries.
hci_conn_check_pending() was used to trigger this retry, we can remove it
now.
Note that we can also remove the special handling for COMMAND_DISALLOWED
errors in the completion handler of "Create Connection", because "Create
Connection" requests are now always serialized.
This is somewhat reverting commit 4c67bc74f016 ("[Bluetooth] Support
concurrent connect requests").
With this, the BT_CONNECT2 state of ACL hci_conn objects should now be
back to meaning only one thing: That we received a "Connection Request"
from another device (see hci_conn_request_evt), but the response to that
is going to be deferred.
Signed-off-by: Jonas Dreßler <verdre@xxxxxxx>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
Stable-dep-of: 227a0cdf4a02 ("Bluetooth: MGMT: Fix not generating command complete for MGMT_OP_DISCONNECT")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 070c794e6a42..850f0e46aecf 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1417,7 +1417,6 @@ struct hci_conn *hci_conn_add_unset(struct hci_dev *hdev, int type,
bdaddr_t *dst, u8 role);
void hci_conn_del(struct hci_conn *conn);
void hci_conn_hash_flush(struct hci_dev *hdev);
-void hci_conn_check_pending(struct hci_dev *hdev);
struct hci_chan *hci_chan_create(struct hci_conn *conn);
void hci_chan_del(struct hci_chan *chan);
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 04fe901a47f7..36731d047f16 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -2565,22 +2565,6 @@ void hci_conn_hash_flush(struct hci_dev *hdev)
}
}
-/* Check pending connect attempts */
-void hci_conn_check_pending(struct hci_dev *hdev)
-{
- struct hci_conn *conn;
-
- BT_DBG("hdev %s", hdev->name);
-
- hci_dev_lock(hdev);
-
- conn = hci_conn_hash_lookup_state(hdev, ACL_LINK, BT_CONNECT2);
- if (conn)
- hci_acl_create_connection_sync(hdev, conn);
-
- hci_dev_unlock(hdev);
-}
-
static u32 get_link_mode(struct hci_conn *conn)
{
u32 link_mode = 0;
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index dc80c1560357..d81c7fccdd40 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -118,8 +118,6 @@ static u8 hci_cc_inquiry_cancel(struct hci_dev *hdev, void *data,
hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
hci_dev_unlock(hdev);
- hci_conn_check_pending(hdev);
-
return rp->status;
}
@@ -150,8 +148,6 @@ static u8 hci_cc_exit_periodic_inq(struct hci_dev *hdev, void *data,
hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ);
- hci_conn_check_pending(hdev);
-
return rp->status;
}
@@ -2257,10 +2253,8 @@ static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
{
bt_dev_dbg(hdev, "status 0x%2.2x", status);
- if (status) {
- hci_conn_check_pending(hdev);
+ if (status)
return;
- }
if (hci_sent_cmd_data(hdev, HCI_OP_INQUIRY))
set_bit(HCI_INQUIRY, &hdev->flags);
@@ -2285,12 +2279,9 @@ static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
if (status) {
if (conn && conn->state == BT_CONNECT) {
- if (status != HCI_ERROR_COMMAND_DISALLOWED || conn->attempt > 2) {
- conn->state = BT_CLOSED;
- hci_connect_cfm(conn, status);
- hci_conn_del(conn);
- } else
- conn->state = BT_CONNECT2;
+ conn->state = BT_CLOSED;
+ hci_connect_cfm(conn, status);
+ hci_conn_del(conn);
}
} else {
if (!conn) {
@@ -2980,8 +2971,6 @@ static void hci_inquiry_complete_evt(struct hci_dev *hdev, void *data,
bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
- hci_conn_check_pending(hdev);
-
if (!test_and_clear_bit(HCI_INQUIRY, &hdev->flags))
return;
@@ -3228,8 +3217,6 @@ static void hci_conn_complete_evt(struct hci_dev *hdev, void *data,
unlock:
hci_dev_unlock(hdev);
-
- hci_conn_check_pending(hdev);
}
static void hci_reject_conn(struct hci_dev *hdev, bdaddr_t *bdaddr)
