462                 ndp = ipst->ips_ndp4;
 463         else
 464                 ndp = ipst->ips_ndp6;
 465 
 466         /* Serialize deletes */
 467         mutex_enter(&ncec->ncec_lock);
 468         if (NCE_ISCONDEMNED(ncec)) {
 469                 /* Some other thread is doing the delete */
 470                 mutex_exit(&ncec->ncec_lock);
 471                 return;
 472         }
 473         /*
 474          * Caller has a refhold. Also 1 ref for being in the list. Thus
 475          * refcnt has to be >= 2
 476          */
 477         ASSERT(ncec->ncec_refcnt >= 2);
 478         ncec->ncec_flags |= NCE_F_CONDEMNED;
 479         mutex_exit(&ncec->ncec_lock);
 480 
 481         /* Count how many condemned ires for kmem_cache callback */
 482         atomic_add_32(&ipst->ips_num_nce_condemned, 1);
 483         nce_fastpath_list_delete(ncec->ncec_ill, ncec, NULL);
 484 
 485         /* Complete any waiting callbacks */
 486         ncec_cb_dispatch(ncec);
 487 
 488         /*
 489          * Cancel any running timer. Timeout can't be restarted
 490          * since CONDEMNED is set. Can't hold ncec_lock across untimeout.
 491          * Passing invalid timeout id is fine.
 492          */
 493         if (ncec->ncec_timeout_id != 0) {
 494                 (void) untimeout(ncec->ncec_timeout_id);
 495                 ncec->ncec_timeout_id = 0;
 496         }
 497 
 498         mutex_enter(&ndp->ndp_g_lock);
 499         if (ncec->ncec_ptpn == NULL) {
 500                 /*
 501                  * The last ndp walker has already removed this ncec from
 502                  * the list after we marked the ncec CONDEMNED and before

 462                 ndp = ipst->ips_ndp4;
 463         else
 464                 ndp = ipst->ips_ndp6;
 465 
 466         /* Serialize deletes */
 467         mutex_enter(&ncec->ncec_lock);
 468         if (NCE_ISCONDEMNED(ncec)) {
 469                 /* Some other thread is doing the delete */
 470                 mutex_exit(&ncec->ncec_lock);
 471                 return;
 472         }
 473         /*
 474          * Caller has a refhold. Also 1 ref for being in the list. Thus
 475          * refcnt has to be >= 2
 476          */
 477         ASSERT(ncec->ncec_refcnt >= 2);
 478         ncec->ncec_flags |= NCE_F_CONDEMNED;
 479         mutex_exit(&ncec->ncec_lock);
 480 
 481         /* Count how many condemned ires for kmem_cache callback */
 482         atomic_inc_32(&ipst->ips_num_nce_condemned);
 483         nce_fastpath_list_delete(ncec->ncec_ill, ncec, NULL);
 484 
 485         /* Complete any waiting callbacks */
 486         ncec_cb_dispatch(ncec);
 487 
 488         /*
 489          * Cancel any running timer. Timeout can't be restarted
 490          * since CONDEMNED is set. Can't hold ncec_lock across untimeout.
 491          * Passing invalid timeout id is fine.
 492          */
 493         if (ncec->ncec_timeout_id != 0) {
 494                 (void) untimeout(ncec->ncec_timeout_id);
 495                 ncec->ncec_timeout_id = 0;
 496         }
 497 
 498         mutex_enter(&ndp->ndp_g_lock);
 499         if (ncec->ncec_ptpn == NULL) {
 500                 /*
 501                  * The last ndp walker has already removed this ncec from
 502                  * the list after we marked the ncec CONDEMNED and before