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Bluetooth: Fix ACL MTU issue

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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 <padovan@profusion.mobi>
Reviewed-by: João Paulo Rechi Vita <jprvita@profusion.mobi>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Gustavo F. Padovan 2010-05-01 16:15:36 -03:00 • committed by Marcel Holtmann
parent 7dffe42102
commit d1daa091e8
1 changed files with 4 additions and 0 deletions

4
net/bluetooth/l2cap.c
View file

@ -2267,6 +2267,8 @@ static int l2cap_build_conf_req(struct sock *sk, void *data)
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 @@ static int l2cap_build_conf_req(struct sock *sk, void *data)
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);