From: "Gustavo F. Padovan" <padovan@xxxxxxxxxxxxxx>
RFCOMM needs a proper priority mechanism inside itself and not try to use
l2cap priority to fix its own problem.
Acked-by: Marcel Holtmann <marcel@xxxxxxxxxxxx>
Signed-off-by: Gustavo F. Padovan <padovan@xxxxxxxxxxxxxx>
---
net/bluetooth/rfcomm/core.c | 47 ++++++++++++++++++++----------------------
1 files changed, 22 insertions(+), 25 deletions(-)
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index be6288c..a795d96 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -65,8 +65,7 @@ static DEFINE_MUTEX(rfcomm_mutex);
static LIST_HEAD(session_list);
-static int rfcomm_send_frame(struct rfcomm_session *s, u8 *data, int len,
- u32 priority);
+static int rfcomm_send_frame(struct rfcomm_session *s, u8 *data, int len);
static int rfcomm_send_sabm(struct rfcomm_session *s, u8 dlci);
static int rfcomm_send_disc(struct rfcomm_session *s, u8 dlci);
static int rfcomm_queue_disc(struct rfcomm_dlc *d);
@@ -748,32 +747,23 @@ void rfcomm_session_getaddr(struct rfcomm_session *s, bdaddr_t *src, bdaddr_t *d
}
/* ---- RFCOMM frame sending ---- */
-static int rfcomm_send_frame(struct rfcomm_session *s, u8 *data, int len,
- u32 priority)
+static int rfcomm_send_frame(struct rfcomm_session *s, u8 *data, int len)
{
- struct socket *sock = s->sock;
- struct sock *sk = sock->sk;
struct kvec iv = { data, len };
struct msghdr msg;
- BT_DBG("session %p len %d priority %u", s, len, priority);
-
- if (sk->sk_priority != priority) {
- lock_sock(sk);
- sk->sk_priority = priority;
- release_sock(sk);
- }
+ BT_DBG("session %p len %d", s, len);
memset(&msg, 0, sizeof(msg));
- return kernel_sendmsg(sock, &msg, &iv, 1, len);
+ return kernel_sendmsg(s->sock, &msg, &iv, 1, len);
}
static int rfcomm_send_cmd(struct rfcomm_session *s, struct rfcomm_cmd *cmd)
{
BT_DBG("%p cmd %u", s, cmd->ctrl);
- return rfcomm_send_frame(s, (void *) cmd, sizeof(*cmd), HCI_PRIO_MAX);
+ return rfcomm_send_frame(s, (void *) cmd, sizeof(*cmd));
}
static int rfcomm_send_sabm(struct rfcomm_session *s, u8 dlci)
@@ -878,7 +868,7 @@ static int rfcomm_send_nsc(struct rfcomm_session *s, int cr, u8 type)
*ptr = __fcs(buf); ptr++;
- return rfcomm_send_frame(s, buf, ptr - buf, HCI_PRIO_MAX);
+ return rfcomm_send_frame(s, buf, ptr - buf);
}
static int rfcomm_send_pn(struct rfcomm_session *s, int cr, struct rfcomm_dlc *d)
@@ -920,7 +910,7 @@ static int rfcomm_send_pn(struct rfcomm_session *s, int cr, struct rfcomm_dlc *d
*ptr = __fcs(buf); ptr++;
- return rfcomm_send_frame(s, buf, ptr - buf, HCI_PRIO_MAX);
+ return rfcomm_send_frame(s, buf, ptr - buf);
}
int rfcomm_send_rpn(struct rfcomm_session *s, int cr, u8 dlci,
@@ -958,7 +948,7 @@ int rfcomm_send_rpn(struct rfcomm_session *s, int cr, u8 dlci,
*ptr = __fcs(buf); ptr++;
- return rfcomm_send_frame(s, buf, ptr - buf, HCI_PRIO_MAX);
+ return rfcomm_send_frame(s, buf, ptr - buf);
}
static int rfcomm_send_rls(struct rfcomm_session *s, int cr, u8 dlci, u8 status)
@@ -985,7 +975,7 @@ static int rfcomm_send_rls(struct rfcomm_session *s, int cr, u8 dlci, u8 status)
*ptr = __fcs(buf); ptr++;
- return rfcomm_send_frame(s, buf, ptr - buf, HCI_PRIO_MAX);
+ return rfcomm_send_frame(s, buf, ptr - buf);
}
static int rfcomm_send_msc(struct rfcomm_session *s, int cr, u8 dlci, u8 v24_sig)
@@ -1012,7 +1002,7 @@ static int rfcomm_send_msc(struct rfcomm_session *s, int cr, u8 dlci, u8 v24_sig
*ptr = __fcs(buf); ptr++;
- return rfcomm_send_frame(s, buf, ptr - buf, HCI_PRIO_MAX);
+ return rfcomm_send_frame(s, buf, ptr - buf);
}
static int rfcomm_send_fcoff(struct rfcomm_session *s, int cr)
@@ -1034,7 +1024,7 @@ static int rfcomm_send_fcoff(struct rfcomm_session *s, int cr)
*ptr = __fcs(buf); ptr++;
- return rfcomm_send_frame(s, buf, ptr - buf, HCI_PRIO_MAX);
+ return rfcomm_send_frame(s, buf, ptr - buf);
}
static int rfcomm_send_fcon(struct rfcomm_session *s, int cr)
@@ -1056,7 +1046,7 @@ static int rfcomm_send_fcon(struct rfcomm_session *s, int cr)
*ptr = __fcs(buf); ptr++;
- return rfcomm_send_frame(s, buf, ptr - buf, HCI_PRIO_MAX);
+ return rfcomm_send_frame(s, buf, ptr - buf);
}
static int rfcomm_send_test(struct rfcomm_session *s, int cr, u8 *pattern, int len)
@@ -1107,7 +1097,7 @@ static int rfcomm_send_credits(struct rfcomm_session *s, u8 addr, u8 credits)
*ptr = __fcs(buf); ptr++;
- return rfcomm_send_frame(s, buf, ptr - buf, HCI_PRIO_MAX);
+ return rfcomm_send_frame(s, buf, ptr - buf);
}
static void rfcomm_make_uih(struct sk_buff *skb, u8 addr)
@@ -1786,8 +1776,15 @@ static inline int rfcomm_process_tx(struct rfcomm_dlc *d)
return skb_queue_len(&d->tx_queue);
while (d->tx_credits && (skb = skb_dequeue(&d->tx_queue))) {
- err = rfcomm_send_frame(d->session, skb->data, skb->len,
- skb->priority);
+ struct socket *sock = d->session->sock;
+ struct sock *sk = sock->sk;
+
+ if (sk->sk_priority != skb->priority) {
+ lock_sock(sk);
+ sk->sk_priority = skb->priority;
+ release_sock(sk);
+ }
+ err = rfcomm_send_frame(d->session, skb->data, skb->len);
if (err < 0) {
skb_queue_head(&d->tx_queue, skb);
break;
--
1.7.6.4
--
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