이 경우에 매크로를 쓰는게 더 효율적인건가요?

#define  TAILQ_FOREACH_SAFE(var, head, field, tvar)         \
   for ((var) = TAILQ_FIRST((head));            \
       (var) && ((tvar) = TAILQ_NEXT((var), field), 1);     \
       (var) = (tvar))
 
#define  TAILQ_FOREACH_REVERSE(var, head, headname, field)     \
   for ((var) = TAILQ_LAST((head), headname);         \
       (var);                    \
       (var) = TAILQ_PREV((var), headname, field))
 
#define  TAILQ_FOREACH_REVERSE_SAFE(var, head, headname, field, tvar)   \
   for ((var) = TAILQ_LAST((head), headname);         \
       (var) && ((tvar) = TAILQ_PREV((var), headname, field), 1); \
       (var) = (tvar))
 
#define  TAILQ_INIT(head) do {                  \
   TAILQ_FIRST((head)) = NULL;               \
   (head)->tqh_last = &TAILQ_FIRST((head));        \
   QMD_TRACE_HEAD(head);                  \
} while (0)
 
#define  TAILQ_INSERT_AFTER(head, listelm, elm, field) do {    \
   if ((TAILQ_NEXT((elm), field) = TAILQ_NEXT((listelm), field)) != NULL)\
      TAILQ_NEXT((elm), field)->field.tqe_prev =      \
          &TAILQ_NEXT((elm), field);            \
   else {                        \
      (head)->tqh_last = &TAILQ_NEXT((elm), field);      \
      QMD_TRACE_HEAD(head);               \
   }                       \
   TAILQ_NEXT((listelm), field) = (elm);           \
   (elm)->field.tqe_prev = &TAILQ_NEXT((listelm), field);      \
   QMD_TRACE_ELEM(&(elm)->field);               \
   QMD_TRACE_ELEM(&listelm->field);          \
} while (0)
 
#define  TAILQ_INSERT_BEFORE(listelm, elm, field) do {         \
   (elm)->field.tqe_prev = (listelm)->field.tqe_prev;    \
   TAILQ_NEXT((elm), field) = (listelm);           \
   *(listelm)->field.tqe_prev = (elm);          \
   (listelm)->field.tqe_prev = &TAILQ_NEXT((elm), field);      \
   QMD_TRACE_ELEM(&(elm)->field);               \
   QMD_TRACE_ELEM(&listelm->field);          \
} while (0)