From 2c96e03def3b1ba47a5d0ec0c8ef7935a9bfb3a0 Mon Sep 17 00:00:00 2001 From: Szymon Janc Date: Tue, 18 Feb 2014 20:48:34 +0100 Subject: [PATCH] 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 Signed-off-by: Marcel Holtmann --- net/bluetooth/l2cap_core.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) 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; -- 2.20.1