dc_list_data
sc->dc_ldata = contigmalloc(sizeof(struct dc_list_data), M_DEVBUF,
contigfree(sc->dc_ldata, sizeof(struct dc_list_data), M_DEVBUF);
struct dc_list_data *ld;
struct dc_list_data *ld;
struct dc_list_data *dc_ldata;