PPPOE_HASH_SIZE
struct pppox_sock __rcu *hash_table[PPPOE_HASH_SIZE];
for (i = 0; i < PPPOE_HASH_SIZE; i++) {
while (++hash < PPPOE_HASH_SIZE) {
for (i = 0; i < PPPOE_HASH_SIZE; i++) {
#define PPPOE_HASH_MASK (PPPOE_HASH_SIZE - 1)