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authorMat Martineau <mathewm@codeaurora.org>2010-08-05 15:54:23 -0700
committerMarcel Holtmann <marcel@holtmann.org>2010-08-10 07:59:11 -0400
commitcff70fae111efba80c27023772ce5265797fb514 (patch)
treeda5ad9fc7d6a492a70816517d5fc742712605d02 /net/bluetooth
parentfa235562fbde8703aabeeedfa0772f08608d1542 (diff)
Bluetooth: Fix incorrect setting of remote_tx_win for L2CAP ERTM
remote_tx_win is intended to be set on receipt of an L2CAP configuration request. The value is used to determine the size of the transmit window on the remote side of an ERTM connection, so L2CAP can stop sending frames when that remote window is full. An incorrect remote_tx_win value will cause the stack to not fully utilize the tx window (performance impact), or to overfill the remote tx window (causing dropped frames or a disconnect). This patch removes an extra setting of remote_tx_win when a configuration response is received. The transmit window has a different meaning in a response - it is an informational value less than or equal to the local tx_win. Signed-off-by: Mat Martineau <mathewm@codeaurora.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/bluetooth')
-rw-r--r--net/bluetooth/l2cap.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index 9d1f1544d9d3..fadf26b4ed7c 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -2807,7 +2807,6 @@ static int l2cap_parse_conf_rsp(struct sock *sk, void *rsp, int len, void *data,
if (*result == L2CAP_CONF_SUCCESS) {
switch (rfc.mode) {
case L2CAP_MODE_ERTM:
- pi->remote_tx_win = rfc.txwin_size;
pi->retrans_timeout = le16_to_cpu(rfc.retrans_timeout);
pi->monitor_timeout = le16_to_cpu(rfc.monitor_timeout);
pi->mps = le16_to_cpu(rfc.max_pdu_size);
@@ -2863,7 +2862,6 @@ static void l2cap_conf_rfc_get(struct sock *sk, void *rsp, int len)
done:
switch (rfc.mode) {
case L2CAP_MODE_ERTM:
- pi->remote_tx_win = rfc.txwin_size;
pi->retrans_timeout = le16_to_cpu(rfc.retrans_timeout);
pi->monitor_timeout = le16_to_cpu(rfc.monitor_timeout);
pi->mps = le16_to_cpu(rfc.max_pdu_size);

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