XOFF was mixed up with DOWN indication, causing causing CAIF channel to be
removed from mux and all incoming traffic to be lost after receiving flow-off.
Fix this by replacing FLOW_OFF with DOWN notification.
Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@conan.davemloft.net>
 
                if (cfsrvl_phyid_match(layer, phyid) && layer->ctrlcmd) {
 
-                       if ((ctrl == _CAIF_CTRLCMD_PHYIF_FLOW_OFF_IND ||
+                       if ((ctrl == _CAIF_CTRLCMD_PHYIF_DOWN_IND ||
                                ctrl == CAIF_CTRLCMD_REMOTE_SHUTDOWN_IND) &&
                                        layer->id != 0) {