pci_identity_init
cmn_p->pci_chip_id = pci_identity_init(pci_p);
static uint32_t pci_identity_init(pci_t *pci_p);
static uint32_t pci_identity_init(pci_t *);
static uint32_t pci_identity_init(pci_t *pci_p);
uint32_t chip_id = pci_identity_init(pci_p);