tcl_walk_data
struct tcl_walk_data *twd;
twd = (struct tcl_walk_data *)wsp->walk_addr;
struct tcl_walk_data *twd;
twd = (struct tcl_walk_data *)mdb_alloc(sizeof (*twd) +
struct tcl_walk_data *twd;
twd = (struct tcl_walk_data *)wsp->walk_addr;