A BTLE 6LoWPAN should be binded to one hci device and is not changeable
afterwards. This patch adds l2cap_hdev_chan_connect function without calling
hci_get_route which decides on bluetooth side which may be the best hci
device which should be use. The hci dev will be available by parameter.
Signed-off-by: Alexander Aring <aar@xxxxxxxxxxxxxx>
---
include/net/bluetooth/l2cap.h | 3 +++
net/bluetooth/l2cap_core.c | 28 +++++++++++++++++++++-------
2 files changed, 24 insertions(+), 7 deletions(-)
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 5ee3c68..8a4d26e 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -928,6 +928,9 @@ struct l2cap_chan *l2cap_chan_create(void);
void l2cap_chan_close(struct l2cap_chan *chan, int reason);
int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
bdaddr_t *dst, u8 dst_type);
+int l2cap_hdev_chan_connect(struct hci_dev *hdev,
+ struct l2cap_chan *chan, __le16 psm, u16 cid,
+ bdaddr_t *dst, u8 dst_type);
int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len);
void l2cap_chan_busy(struct l2cap_chan *chan, int busy);
int l2cap_chan_check_security(struct l2cap_chan *chan, bool initiator);
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 54ceb1f..2ab8814 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -7041,21 +7041,17 @@ static bool is_valid_psm(u16 psm, u8 dst_type) {
return ((psm & 0x0101) == 0x0001);
}
-int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
- bdaddr_t *dst, u8 dst_type)
+int l2cap_hdev_chan_connect(struct hci_dev *hdev,
+ struct l2cap_chan *chan, __le16 psm, u16 cid,
+ bdaddr_t *dst, u8 dst_type)
{
struct l2cap_conn *conn;
struct hci_conn *hcon;
- struct hci_dev *hdev;
int err;
BT_DBG("%pMR -> %pMR (type %u) psm 0x%2.2x", &chan->src, dst,
dst_type, __le16_to_cpu(psm));
- hdev = hci_get_route(dst, &chan->src);
- if (!hdev)
- return -EHOSTUNREACH;
-
hci_dev_lock(hdev);
if (!is_valid_psm(__le16_to_cpu(psm), dst_type) && !cid &&
@@ -7199,7 +7195,25 @@ chan_unlock:
mutex_unlock(&conn->chan_lock);
done:
hci_dev_unlock(hdev);
+ return err;
+}
+EXPORT_SYMBOL_GPL(l2cap_hdev_chan_connect);
+
+int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
+ bdaddr_t *dst, u8 dst_type)
+{
+ struct hci_dev *hdev;
+ int err = -EHOSTUNREACH;
+
+ hdev = hci_get_route(dst, &chan->src);
+ if (!hdev)
+ goto done;
+
+ err = l2cap_hdev_chan_connect(hdev, chan, psm, cid, dst, dst_type);
+
hci_dev_put(hdev);
+
+done:
return err;
}
EXPORT_SYMBOL_GPL(l2cap_chan_connect);
--
2.9.0
--
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