XPC_C_SETUP
if (!(ch->flags & XPC_C_SETUP)) {
ch->flags |= XPC_C_SETUP;
DBUG_ON(ch_flags & XPC_C_SETUP);
ch->flags = (XPC_C_CONNECTED | XPC_C_SETUP); /* clear all else */
DBUG_ON(ch->flags & XPC_C_SETUP);
if (ch->flags & XPC_C_SETUP) {