From: Gustavo F. Padovan Date: Sat, 1 May 2010 19:15:36 +0000 (-0300) Subject: Bluetooth: Fix ACL MTU issue X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=d1daa091e8612f3aab14d28b5836375fafe155e1;p=linux-beck.git Bluetooth: Fix ACL MTU issue ERTM and Streaming Modes was having problems when the ACL MTU is lower than MPS. The 'minus 10' is to take in account the header and fcs lenghts. Signed-off-by: Gustavo F. Padovan Reviewed-by: João Paulo Rechi Vita Signed-off-by: Marcel Holtmann --- diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c index 401011a53c73..99cf1772b481 100644 --- a/net/bluetooth/l2cap.c +++ b/net/bluetooth/l2cap.c @@ -2267,6 +2267,8 @@ done: rfc.retrans_timeout = 0; rfc.monitor_timeout = 0; rfc.max_pdu_size = cpu_to_le16(L2CAP_DEFAULT_MAX_PDU_SIZE); + if (L2CAP_DEFAULT_MAX_PDU_SIZE > pi->conn->mtu - 10) + rfc.max_pdu_size = pi->conn->mtu - 10; l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC, sizeof(rfc), (unsigned long) &rfc); @@ -2288,6 +2290,8 @@ done: rfc.retrans_timeout = 0; rfc.monitor_timeout = 0; rfc.max_pdu_size = cpu_to_le16(L2CAP_DEFAULT_MAX_PDU_SIZE); + if (L2CAP_DEFAULT_MAX_PDU_SIZE > pi->conn->mtu - 10) + rfc.max_pdu_size = pi->conn->mtu - 10; l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC, sizeof(rfc), (unsigned long) &rfc);