cma_from_kobj
struct cma *cma = cma_from_kobj(kobj);
struct cma *cma = cma_from_kobj(kobj);
struct cma *cma = cma_from_kobj(kobj);
struct cma *cma = cma_from_kobj(kobj);
struct cma *cma = cma_from_kobj(kobj);
struct cma *cma = cma_from_kobj(kobj);