L2_BUCKET
(l2b = &l2->l2_bucket[L2_BUCKET(l1slot)])->l2b_kva == NULL)
struct l2_bucket * const l2b = &l2->l2_bucket[L2_BUCKET(l1slot)];
? &kpm->pm_l2[L2_IDX(l1slot)]->l2_bucket[L2_BUCKET(l1slot)]
? kpm->pm_l2[L2_IDX(l1slot)]->l2_bucket[L2_BUCKET(l1slot)].l2b_kva
(ptep = l2->l2_bucket[L2_BUCKET(l1slot)].l2b_kva) == NULL) {
struct l2_bucket * const l2b = &l2->l2_bucket[L2_BUCKET(l1slot)];
l2b = &l2->l2_bucket[L2_BUCKET(l1slot)];
struct l2_bucket * const l2b = &l2->l2_bucket[L2_BUCKET(l1slot)];
(ptep = l2->l2_bucket[L2_BUCKET(l1slot)].l2b_kva) == NULL) {
l2b = &l2->l2_bucket[L2_BUCKET(l1slot)];