free_bktr_mem 1569 dev/pci/bktr/bktr_core.c free_bktr_mem(bktr, bktr->dm_mem, free_bktr_mem 52 dev/pci/bktr/bktr_os.h void free_bktr_mem(bktr_ptr_t, bus_dmamap_t, vaddr_t);