copymsgchain
(mp = copymsgchain(mpnext)) != NULL) {
(mp = copymsgchain(mpnext)) != NULL) {
if ((nmp = copymsgchain(mp)) != NULL)
if ((nmp = copymsgchain(mp)) != NULL)
extern mblk_t *copymsgchain(mblk_t *);
mp = copymsgchain(mp);