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authorSzymon Janc <szymon.janc@gmail.com>2014-02-18 20:48:34 +0100
committerMarcel Holtmann <marcel@holtmann.org>2014-02-18 12:11:47 -0800
commit2c96e03def3b1ba47a5d0ec0c8ef7935a9bfb3a0 (patch)
treeb36d7547a68fea536feaead43a72a6919d97a1f8
parent5cedbb8d7aee79a8bbfc8e5b91bc1353ffb0f7b0 (diff)
downloadlinux-2c96e03def3b1ba47a5d0ec0c8ef7935a9bfb3a0.tar.bz2
Bluetooth: Print error when dropping L2CAP data
Silently dropping L2CAP data (i.e. due to remote device not obeying negotiated MTU) is confusing and makes debugging harder. Signed-off-by: Szymon Janc <szymon.janc@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
-rw-r--r--net/bluetooth/l2cap_core.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index c3bda6445f3d..6ace116f3b39 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -6776,8 +6776,10 @@ static void l2cap_data_channel(struct l2cap_conn *conn, u16 cid,
* But we don't have any other choice. L2CAP doesn't
* provide flow control mechanism. */
- if (chan->imtu < skb->len)
+ if (chan->imtu < skb->len) {
+ BT_ERR("Dropping L2CAP data: receive buffer overflow");
goto drop;
+ }
if (!chan->ops->recv(chan, skb))
goto done;