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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>
This commit is contained in:
Johan Hedberg 2015-10-21 18:03:00 +03:00 committed by Marcel Holtmann
parent 85813a7ec7
commit 1b51c7b6e8
1 changed files with 24 additions and 0 deletions
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24
include/net/bluetooth/hci_core.h
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@ -794,6 +794,30 @@ static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
return NULL; 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, static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
__u8 type, __u16 state) __u8 type, __u16 state)
{ {