mac_drv_get_space
if (!(smc->os.hwm.mbuf_pool.mb_start = (SMbuf *) mac_drv_get_space(smc,
if (!(mb_start = (SMbuf *) mac_drv_get_space(smc,
extern void* mac_drv_get_space(struct s_smc *smc, unsigned int size);
void *mac_drv_get_space(struct s_smc *smc, u_int size);
virt = mac_drv_get_space(smc, size);
if (!mac_drv_get_space(smc, size)) {