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Bluetooth: Use hci_conn_params in pend_le_conns 

Since the connection parameters are always a basis for adding entries to
hdev->pend_le_conns (so far of type bdaddr_list) it's simpler and more
efficient to have the parameters themselves be the entries in the
pend_le_conns list. We do this by adding another list_head to the
hci_conn_params struct.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Johan Hedberg 2014-07-03 19:33:49 +03:00 committed by Marcel Holtmann
parent 435a13d839
commit 912b42ef05
4 changed files with 33 additions and 55 deletions
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9
include/net/bluetooth/hci_core.h
View File

@ -439,6 +439,7 @@ struct hci_chan {
struct hci_conn_params {
struct list_head list;
struct list_head pend_le_conn;
bdaddr_t addr;
u8 addr_type;
@ -867,10 +868,10 @@ void hci_conn_params_clear_all(struct hci_dev *hdev);
void hci_conn_params_clear_disabled(struct hci_dev *hdev);
void hci_conn_params_clear_enabled(struct hci_dev *hdev);
struct bdaddr_list *hci_pend_le_conn_lookup(struct hci_dev *hdev,
bdaddr_t *addr, u8 addr_type);
void hci_pend_le_conn_add(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
void hci_pend_le_conn_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
struct hci_conn_params *hci_pend_le_conn_lookup(struct hci_dev *hdev,
bdaddr_t *addr, u8 addr_type);
void hci_pend_le_conn_add(struct hci_dev *hdev, struct hci_conn_params *params);
void hci_pend_le_conn_del(struct hci_dev *hdev, struct hci_conn_params *params);
void hci_pend_le_conns_clear(struct hci_dev *hdev);
void hci_update_background_scan(struct hci_dev *hdev);

68
net/bluetooth/hci_core.c
View File

@ -3427,73 +3427,46 @@ static bool is_connected(struct hci_dev *hdev, bdaddr_t *addr, u8 type)
}
/* This function requires the caller holds hdev->lock */
struct bdaddr_list *hci_pend_le_conn_lookup(struct hci_dev *hdev,
bdaddr_t *addr, u8 addr_type)
struct hci_conn_params *hci_pend_le_conn_lookup(struct hci_dev *hdev,
bdaddr_t *addr, u8 addr_type)
{
struct bdaddr_list *entry;
struct hci_conn_params *param;
list_for_each_entry(entry, &hdev->pend_le_conns, list) {
if (bacmp(&entry->bdaddr, addr) == 0 &&
entry->bdaddr_type == addr_type)
return entry;
list_for_each_entry(param, &hdev->pend_le_conns, pend_le_conn) {
if (bacmp(&param->addr, addr) == 0 &&
param->addr_type == addr_type)
return param;
}
return NULL;
}
/* This function requires the caller holds hdev->lock */
void hci_pend_le_conn_add(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type)
void hci_pend_le_conn_add(struct hci_dev *hdev, struct hci_conn_params *params)
{
struct bdaddr_list *entry;
list_del_init(&params->pend_le_conn);
list_add(&params->pend_le_conn, &hdev->pend_le_conns);
entry = hci_pend_le_conn_lookup(hdev, addr, addr_type);
if (entry)
goto done;
BT_DBG("addr %pMR (type %u)", &params->addr, params->addr_type);
entry = kzalloc(sizeof(*entry), GFP_KERNEL);
if (!entry) {
BT_ERR("Out of memory");
return;
}
bacpy(&entry->bdaddr, addr);
entry->bdaddr_type = addr_type;
list_add(&entry->list, &hdev->pend_le_conns);
BT_DBG("addr %pMR (type %u)", addr, addr_type);
done:
hci_update_background_scan(hdev);
}
/* This function requires the caller holds hdev->lock */
void hci_pend_le_conn_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type)
void hci_pend_le_conn_del(struct hci_dev *hdev, struct hci_conn_params *params)
{
struct bdaddr_list *entry;
list_del_init(&params->pend_le_conn);
entry = hci_pend_le_conn_lookup(hdev, addr, addr_type);
if (!entry)
goto done;
BT_DBG("addr %pMR (type %u)", &params->addr, params->addr_type);
list_del(&entry->list);
kfree(entry);
BT_DBG("addr %pMR (type %u)", addr, addr_type);
done:
hci_update_background_scan(hdev);
}
/* This function requires the caller holds hdev->lock */
void hci_pend_le_conns_clear(struct hci_dev *hdev)
{
struct bdaddr_list *entry, *tmp;
list_for_each_entry_safe(entry, tmp, &hdev->pend_le_conns, list) {
list_del(&entry->list);
kfree(entry);
}
while (!list_empty(&hdev->pend_le_conns))
list_del_init(hdev->pend_le_conns.next);
BT_DBG("All LE pending connections cleared");
@ -3523,6 +3496,7 @@ struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
params->addr_type = addr_type;
list_add(&params->list, &hdev->le_conn_params);
INIT_LIST_HEAD(&params->pend_le_conn);
params->conn_min_interval = hdev->le_conn_min_interval;
params->conn_max_interval = hdev->le_conn_max_interval;
@ -3552,16 +3526,16 @@ int hci_conn_params_set(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type,
switch (auto_connect) {
case HCI_AUTO_CONN_DISABLED:
case HCI_AUTO_CONN_LINK_LOSS:
hci_pend_le_conn_del(hdev, addr, addr_type);
hci_pend_le_conn_del(hdev, params);
break;
case HCI_AUTO_CONN_REPORT:
if (params->auto_connect != HCI_AUTO_CONN_REPORT)
hdev->pend_le_reports++;
hci_pend_le_conn_del(hdev, addr, addr_type);
hci_pend_le_conn_del(hdev, params);
break;
case HCI_AUTO_CONN_ALWAYS:
if (!is_connected(hdev, addr, addr_type))
hci_pend_le_conn_add(hdev, addr, addr_type);
hci_pend_le_conn_add(hdev, params);
break;
}
@ -3585,7 +3559,7 @@ void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type)
if (params->auto_connect == HCI_AUTO_CONN_REPORT)
hdev->pend_le_reports--;
hci_pend_le_conn_del(hdev, addr, addr_type);
hci_pend_le_conn_del(hdev, params);
list_del(&params->list);
kfree(params);

7
net/bluetooth/hci_event.c
View File

@ -2209,7 +2209,7 @@ static void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
/* Fall through */
case HCI_AUTO_CONN_ALWAYS:
hci_pend_le_conn_add(hdev, &conn->dst, conn->dst_type);
hci_pend_le_conn_add(hdev, params);
break;
default:
@ -4036,6 +4036,7 @@ static void hci_disconn_phylink_complete_evt(struct hci_dev *hdev,
static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
{
struct hci_ev_le_conn_complete *ev = (void *) skb->data;
struct hci_conn_params *params;
struct hci_conn *conn;
struct smp_irk *irk;
u8 addr_type;
@ -4152,7 +4153,9 @@ static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
hci_proto_connect_cfm(conn, ev->status);
hci_pend_le_conn_del(hdev, &conn->dst, conn->dst_type);
params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
if (params)
hci_pend_le_conn_del(hdev, params);
unlock:
hci_dev_unlock(hdev);

4
net/bluetooth/mgmt.c
View File

@ -5201,7 +5201,7 @@ static int remove_device(struct sock *sk, struct hci_dev *hdev,
if (params->auto_connect == HCI_AUTO_CONN_REPORT)
hdev->pend_le_reports--;
hci_pend_le_conn_del(hdev, &cp->addr.bdaddr, addr_type);
hci_pend_le_conn_del(hdev, params);
list_del(&params->list);
kfree(params);
@ -5514,7 +5514,7 @@ static void restart_le_auto_conns(struct hci_dev *hdev)
list_for_each_entry(p, &hdev->le_conn_params, list) {
if (p->auto_connect == HCI_AUTO_CONN_ALWAYS) {
hci_pend_le_conn_add(hdev, &p->addr, p->addr_type);
hci_pend_le_conn_add(hdev, p);
added = true;
}
}