Bluetooth: Add alloc_skb chan operator
Add channel-specific skb allocation method
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 238daf8..e7a8cc7 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -506,6 +506,9 @@
int (*recv) (void *data, struct sk_buff *skb);
void (*close) (void *data);
void (*state_change) (void *data, int state);
+ struct sk_buff *(*alloc_skb) (struct l2cap_chan *chan,
+ unsigned long len, int nb, int *err);
+
};
struct l2cap_conn {
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index cba1f68..b2f52f8 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1520,7 +1520,6 @@
static inline int l2cap_skbuff_fromiovec(struct l2cap_chan *chan, struct msghdr *msg, int len, int count, struct sk_buff *skb)
{
- struct sock *sk = chan->sk;
struct l2cap_conn *conn = chan->conn;
struct sk_buff **frag;
int err, sent = 0;
@@ -1536,7 +1535,9 @@
while (len) {
count = min_t(unsigned int, conn->mtu, len);
- *frag = bt_skb_send_alloc(sk, count, msg->msg_flags & MSG_DONTWAIT, &err);
+ *frag = chan->ops->alloc_skb(chan, count,
+ msg->msg_flags & MSG_DONTWAIT, &err);
+
if (!*frag)
return err;
if (memcpy_fromiovec(skb_put(*frag, count), msg->msg_iov, count))
@@ -1566,8 +1567,10 @@
BT_DBG("sk %p len %d priority %u", sk, (int)len, priority);
count = min_t(unsigned int, (conn->mtu - hlen), len);
- skb = bt_skb_send_alloc(sk, count + hlen,
- msg->msg_flags & MSG_DONTWAIT, &err);
+
+ skb = chan->ops->alloc_skb(chan, count + hlen,
+ msg->msg_flags & MSG_DONTWAIT, &err);
+
if (!skb)
return ERR_PTR(err);
@@ -1600,8 +1603,10 @@
BT_DBG("sk %p len %d", sk, (int)len);
count = min_t(unsigned int, (conn->mtu - hlen), len);
- skb = bt_skb_send_alloc(sk, count + hlen,
- msg->msg_flags & MSG_DONTWAIT, &err);
+
+ skb = chan->ops->alloc_skb(chan, count + hlen,
+ msg->msg_flags & MSG_DONTWAIT, &err);
+
if (!skb)
return ERR_PTR(err);
@@ -1647,8 +1652,10 @@
hlen += L2CAP_FCS_SIZE;
count = min_t(unsigned int, (conn->mtu - hlen), len);
- skb = bt_skb_send_alloc(sk, count + hlen,
- msg->msg_flags & MSG_DONTWAIT, &err);
+
+ skb = chan->ops->alloc_skb(chan, count + hlen,
+ msg->msg_flags & MSG_DONTWAIT, &err);
+
if (!skb)
return ERR_PTR(err);
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 401d942..1636029 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -899,12 +899,21 @@
sk->sk_state = state;
}
+static struct sk_buff *l2cap_sock_alloc_skb_cb(struct l2cap_chan *chan,
+ unsigned long len, int nb, int *err)
+{
+ struct sock *sk = chan->sk;
+
+ return bt_skb_send_alloc(sk, len, nb, err);
+}
+
static struct l2cap_ops l2cap_chan_ops = {
.name = "L2CAP Socket Interface",
.new_connection = l2cap_sock_new_connection_cb,
.recv = l2cap_sock_recv_cb,
.close = l2cap_sock_close_cb,
.state_change = l2cap_sock_state_change_cb,
+ .alloc_skb = l2cap_sock_alloc_skb_cb,
};
static void l2cap_sock_destruct(struct sock *sk)