pci_chipset_tag
struct pci_chipset_tag;
typedef struct pci_chipset_tag *pci_chipset_tag_t;
struct pci_chipset_tag;
typedef struct pci_chipset_tag *pci_chipset_tag_t;
kmem_free(pc, sizeof(struct pci_chipset_tag));
pc = kmem_alloc(sizeof(struct pci_chipset_tag), KM_SLEEP);
kmem_free(pc, sizeof(struct pci_chipset_tag));
pci_chipset_tag_t pci_chipset_tag;
iebp->pci_chipset_tag = pba->pba_pc;
*pc = iebp->pci_chipset_tag;