FL_HASH_MASK
for (i = 0; i <= FL_HASH_MASK; i++) {
for (i = 0; i <= FL_HASH_MASK; i++) {
#define FL_HASH(l) (ntohl(l)&FL_HASH_MASK)
static struct ip6_flowlabel __rcu *fl_ht[FL_HASH_MASK+1];
for (state->bucket = 0; state->bucket <= FL_HASH_MASK; ++state->bucket) {
if (++state->bucket <= FL_HASH_MASK) {