n2piupc_sw_biterr_t
n2piupc_sw_biterr_t *biterr_p = n2piupc_p->n2piupc_biterr_p;
*arg = kmem_zalloc(sizeof (n2piupc_sw_biterr_t), KM_SLEEP);
kmem_free(arg, sizeof (n2piupc_sw_biterr_t));
n2piupc_sw_biterr_t *biterr_p = n2piupc_p->n2piupc_biterr_p;