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| author | Johan Hedberg <johan.hedberg@intel.com> | 2015-10-21 18:03:00 +0300 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2015-10-21 18:36:39 +0200 |
| commit | 1b51c7b6e878a2df6fdb5bcf51f966eb46a330e0 (patch) | |
| tree | 9264f87edf290f9f39146f21bc770eef1729ff9c | |
| parent | 85813a7ec774b982899c82f86c52cad47588f863 (diff) | |
| download | lwn-1b51c7b6e878a2df6fdb5bcf51f966eb46a330e0.tar.gz lwn-1b51c7b6e878a2df6fdb5bcf51f966eb46a330e0.zip | |
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 <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| -rw-r--r-- | include/net/bluetooth/hci_core.h | 24 |
1 files changed, 24 insertions, 0 deletions
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) { |