[BRIDGE]: random extra bytes on STP TCN packet

We seem to send 3 extra bytes in a TCN, which will be whatever happens
to be on the stack. Thanks to Aji_Srinivas@emc.com for seeing.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/bridge/br_stp_bpdu.c b/net/bridge/br_stp_bpdu.c
index a7ba0cce0b4658738e170a5ee2d11ed64414c407..068d8afbf0a79896eadadbddf4e19c15d56da288 100644 (file)
--- a/net/bridge/br_stp_bpdu.c
+++ b/net/bridge/br_stp_bpdu.c
@@ -121,7 +121,7 @@ void br_send_tcn_bpdu(struct net_bridge_port *p)
        buf[1] = 0;
        buf[2] = 0;
        buf[3] = BPDU_TYPE_TCN;
-       br_send_bpdu(p, buf, 7);
+       br_send_bpdu(p, buf, 4);
 }
 
 /*