From a5c4e309b9f23b9de5475029b2cb1641ec293137 Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Wed, 16 Jul 2014 11:56:07 +0300 Subject: [PATCH] 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 Signed-off-by: Marcel Holtmann --- include/net/bluetooth/hci_core.h | 3 ++- net/bluetooth/amp.c | 4 ++-- net/bluetooth/hci_conn.c | 17 +++++++++-------- net/bluetooth/hci_event.c | 17 ++++++----------- 4 files changed, 19 insertions(+), 22 deletions(-) diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index abe5083becd3..3de000fbecdc 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -695,7 +695,8 @@ void hci_disconnect(struct hci_conn *conn, __u8 reason); bool hci_setup_sync(struct hci_conn *conn, __u16 handle); void hci_sco_setup(struct hci_conn *conn, __u8 status); -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); int 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); diff --git a/net/bluetooth/amp.c b/net/bluetooth/amp.c index bb39509b3f06..e60603a8969f 100644 --- a/net/bluetooth/amp.c +++ b/net/bluetooth/amp.c @@ -113,8 +113,9 @@ struct hci_conn *phylink_add(struct hci_dev *hdev, struct amp_mgr *mgr, { 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 @@ struct hci_conn *phylink_add(struct hci_dev *hdev, struct amp_mgr *mgr, 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 6edd55340157..ad5f0b819e90 100644 --- a/net/bluetooth/hci_conn.c +++ b/net/bluetooth/hci_conn.c @@ -421,7 +421,8 @@ static void le_conn_timeout(struct work_struct *work) 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 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst) 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 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst) 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 @@ struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst, 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 @@ struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst, &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 @@ struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst, 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 @@ struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst, 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 @@ struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst, 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 5f7fd410fb3b..c68b93e11686 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -1414,11 +1414,9 @@ static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status) } } 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 @@ static void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb) 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 @@ static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) 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 @@ static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) 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 -- GitLab