nm_kr_tryget
if (unlikely(nm_kr_tryget(kring, 1, &error))) {
if (nm_kr_tryget(kring, 1, &revents))
if (unlikely(nm_kr_tryget(kring, 1, &revents)))
if (nm_kr_tryget(kring, 0 /* can't sleep */, NULL)) {
if (nm_kr_tryget(hw_kring, 0, NULL)) {
if (unlikely(nm_kr_tryget(kring, 1, NULL))) {
if (unlikely(nm_kr_tryget(kring, 1, NULL))) {
if (nm_kr_tryget(kring, 0, NULL)) {