Bluetooth: Add a role parameter to hci_conn_add()
We need to be able to track slave vs master LE connections in
hci_conn_hash, and to be able to do that we need to know the role of the
connection by the time hci_conn_add_has() is called. This means in
practice the hci_conn_add() call that creates the hci_conn_object.
This patch adds a new role parameter to hci_conn_add() function to give
the object its initial role value, and updates the callers to pass the
appropriate role to it. Since the function now takes care of
initializing both conn->role and conn->out values we can remove some
other unnecessary assignments.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/net/bluetooth/amp.c b/net/bluetooth/amp.c
index bb39509..e60603a 100644
--- a/net/bluetooth/amp.c
+++ b/net/bluetooth/amp.c
@@ -113,8 +113,9 @@
{
bdaddr_t *dst = &mgr->l2cap_conn->hcon->dst;
struct hci_conn *hcon;
+ u8 role = out ? HCI_ROLE_MASTER : HCI_ROLE_SLAVE;
- hcon = hci_conn_add(hdev, AMP_LINK, dst);
+ hcon = hci_conn_add(hdev, AMP_LINK, dst, role);
if (!hcon)
return NULL;
@@ -125,7 +126,6 @@
hcon->handle = __next_handle(mgr);
hcon->remote_id = remote_id;
hcon->amp_mgr = amp_mgr_get(mgr);
- hcon->out = out;
return hcon;
}
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 6edd553..ad5f0b8 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -421,7 +421,8 @@
hci_le_create_connection_cancel(conn);
}
-struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst)
+struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
+ u8 role)
{
struct hci_conn *conn;
@@ -435,6 +436,7 @@
bacpy(&conn->src, &hdev->bdaddr);
conn->hdev = hdev;
conn->type = type;
+ conn->role = role;
conn->mode = HCI_CM_ACTIVE;
conn->state = BT_OPEN;
conn->auth_type = HCI_AT_GENERAL_BONDING;
@@ -447,6 +449,9 @@
set_bit(HCI_CONN_POWER_SAVE, &conn->flags);
conn->disc_timeout = HCI_DISCONN_TIMEOUT;
+ if (conn->role == HCI_ROLE_MASTER)
+ conn->out = true;
+
switch (type) {
case ACL_LINK:
conn->pkt_type = hdev->pkt_type & ACL_PTYPE_MASK;
@@ -746,7 +751,7 @@
dst_type = ADDR_LE_DEV_RANDOM;
}
- conn = hci_conn_add(hdev, LE_LINK, dst);
+ conn = hci_conn_add(hdev, LE_LINK, dst, role);
if (!conn)
return ERR_PTR(-ENOMEM);
@@ -769,8 +774,6 @@
&enable);
}
- conn->role = role;
-
/* If requested to connect as slave use directed advertising */
if (conn->role == HCI_ROLE_SLAVE) {
/* If we're active scanning most controllers are unable
@@ -787,8 +790,6 @@
goto create_conn;
}
- conn->out = true;
-
params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
if (params) {
conn->le_conn_min_interval = params->conn_min_interval;
@@ -837,7 +838,7 @@
acl = hci_conn_hash_lookup_ba(hdev, ACL_LINK, dst);
if (!acl) {
- acl = hci_conn_add(hdev, ACL_LINK, dst);
+ acl = hci_conn_add(hdev, ACL_LINK, dst, HCI_ROLE_MASTER);
if (!acl)
return ERR_PTR(-ENOMEM);
}
@@ -866,7 +867,7 @@
sco = hci_conn_hash_lookup_ba(hdev, type, dst);
if (!sco) {
- sco = hci_conn_add(hdev, type, dst);
+ sco = hci_conn_add(hdev, type, dst, HCI_ROLE_MASTER);
if (!sco) {
hci_conn_drop(acl);
return ERR_PTR(-ENOMEM);
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 5f7fd41..c68b93e 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -1414,11 +1414,9 @@
}
} else {
if (!conn) {
- conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr);
- if (conn) {
- conn->out = true;
- conn->role = HCI_ROLE_MASTER;
- } else
+ conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr,
+ HCI_ROLE_MASTER);
+ if (!conn)
BT_ERR("No memory for new connection");
}
}
@@ -2156,7 +2154,8 @@
conn = hci_conn_hash_lookup_ba(hdev, ev->link_type,
&ev->bdaddr);
if (!conn) {
- conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr);
+ conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr,
+ HCI_ROLE_SLAVE);
if (!conn) {
BT_ERR("No memory for new connection");
hci_dev_unlock(hdev);
@@ -4100,7 +4099,7 @@
conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT);
if (!conn) {
- conn = hci_conn_add(hdev, LE_LINK, &ev->bdaddr);
+ conn = hci_conn_add(hdev, LE_LINK, &ev->bdaddr, ev->role);
if (!conn) {
BT_ERR("No memory for new connection");
goto unlock;
@@ -4108,10 +4107,6 @@
conn->dst_type = ev->bdaddr_type;
- conn->role = ev->role;
- if (conn->role == HCI_ROLE_MASTER)
- conn->out = true;
-
/* If we didn't have a hci_conn object previously
* but we're in master role this must be something
* initiated using a white list. Since white list based