From 1b51c7b6e878a2df6fdb5bcf51f966eb46a330e0 Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Wed, 21 Oct 2015 18:03:00 +0300 Subject: Bluetooth: Add hci_conn_hash_lookup_le() helper function Many of the existing LE connection lookups are forced to use hci_conn_hash_lookup_ba() which doesn't take into account the address type. What's worse, most of the users don't bother checking that the returned address type matches what was wanted. This patch adds a new helper API to look up LE connections based on their address and address type, paving the way to have the hci_conn_hash_lookup_ba() users converted to do more precise lookups. Signed-off-by: Johan Hedberg Signed-off-by: Marcel Holtmann --- include/net/bluetooth/hci_core.h | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'include/net/bluetooth') diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 0015d087d8b1..32bb281e6aa6 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -794,6 +794,30 @@ static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, return NULL; } +static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev, + bdaddr_t *ba, + __u8 ba_type) +{ + struct hci_conn_hash *h = &hdev->conn_hash; + struct hci_conn *c; + + rcu_read_lock(); + + list_for_each_entry_rcu(c, &h->list, list) { + if (c->type != LE_LINK) + continue; + + if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) { + rcu_read_unlock(); + return c; + } + } + + rcu_read_unlock(); + + return NULL; +} + static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, __u8 type, __u16 state) { -- cgit v1.2.3