SCTP_STACK_VTAG_HASH_SIZE
chain = &sctppcbinfo.vtag_timewait[(tag % SCTP_STACK_VTAG_HASH_SIZE)];
for (i = 0; i < SCTP_STACK_VTAG_HASH_SIZE; i++) {
chain = &sctppcbinfo.vtag_timewait[(tag % SCTP_STACK_VTAG_HASH_SIZE)];
struct sctpvtaghead vtag_timewait[SCTP_STACK_VTAG_HASH_SIZE];