hash_flow_ent
static uint32_t hash_flow_ent(struct fhashentry *ent, uint32_t size);
hash = hash_flow_ent(ent, cfg->size);
hash = hash_flow_ent(ent, cfg->size);
hash = hash_flow_ent(ent, cfg->size);
nhash = hash_flow_ent(ent, mi->size);