/*
* net/dccp/ccids/ccid3.c
*
- * Copyright (c) 2005 The University of Waikato, Hamilton, New Zealand.
- * Copyright (c) 2005-6 Ian McDonald <ian.mcdonald@jandi.co.nz>
+ * Copyright (c) 2005-7 The University of Waikato, Hamilton, New Zealand.
+ * Copyright (c) 2005-7 Ian McDonald <ian.mcdonald@jandi.co.nz>
*
* An implementation of the DCCP protocol
*
static struct dccp_tx_hist *ccid3_tx_hist;
static struct dccp_rx_hist *ccid3_rx_hist;
-static struct dccp_li_hist *ccid3_li_hist;
/*
* Transmitter Half-Connection Routines
hctx->ccid3hctx_s, (unsigned)(hctx->ccid3hctx_x >> 6));
}
-/*
- * Update X by
- * If (p > 0)
- * X_calc = calcX(s, R, p);
- * X = max(min(X_calc, 2 * X_recv), s / t_mbi);
- * Else
- * If (now - tld >= R)
- * X = max(min(2 * X, 2 * X_recv), s / R);
- * tld = now;
+
+/**
+ * ccid3_hc_tx_update_x - Update allowed sending rate X
+ * @stamp: most recent time if available - can be left NULL.
+ * This function tracks draft rfc3448bis, check there for latest details.
*
* Note: X and X_recv are both stored in units of 64 * bytes/second, to support
* fine-grained resolution of sending rates. This requires scaling by 2^6
* throughout the code. Only X_calc is unscaled (in bytes/second).
*
*/
-static void ccid3_hc_tx_update_x(struct sock *sk, struct timeval *now)
+static void ccid3_hc_tx_update_x(struct sock *sk, ktime_t *stamp)
{
struct ccid3_hc_tx_sock *hctx = ccid3_hc_tx_sk(sk);
__u64 min_rate = 2 * hctx->ccid3hctx_x_recv;
const __u64 old_x = hctx->ccid3hctx_x;
+ ktime_t now = stamp? *stamp : ktime_get_real();
/*
* Handle IDLE periods: do not reduce below RFC3390 initial sending rate
(((__u64)hctx->ccid3hctx_s) << 6) /
TFRC_T_MBI);
- } else if (timeval_delta(now, &hctx->ccid3hctx_t_ld) -
- (suseconds_t)hctx->ccid3hctx_rtt >= 0) {
+ } else if (ktime_us_delta(now, hctx->ccid3hctx_t_ld)
+ - (s64)hctx->ccid3hctx_rtt >= 0) {
hctx->ccid3hctx_x =
max(min(2 * hctx->ccid3hctx_x, min_rate),
scaled_div(((__u64)hctx->ccid3hctx_s) << 6,
hctx->ccid3hctx_rtt));
- hctx->ccid3hctx_t_ld = *now;
+ hctx->ccid3hctx_t_ld = now;
}
if (hctx->ccid3hctx_x != old_x) {
* The algorithm is not applicable if RTT < 4 microseconds.
*/
static inline void ccid3_hc_tx_update_win_count(struct ccid3_hc_tx_sock *hctx,
- struct timeval *now)
+ ktime_t now)
{
- suseconds_t delta;
u32 quarter_rtts;
if (unlikely(hctx->ccid3hctx_rtt < 4)) /* avoid divide-by-zero */
return;
- delta = timeval_delta(now, &hctx->ccid3hctx_t_last_win_count);
- DCCP_BUG_ON(delta < 0);
-
- quarter_rtts = (u32)delta / (hctx->ccid3hctx_rtt / 4);
+ quarter_rtts = ktime_us_delta(now, hctx->ccid3hctx_t_last_win_count);
+ quarter_rtts /= hctx->ccid3hctx_rtt / 4;
if (quarter_rtts > 0) {
- hctx->ccid3hctx_t_last_win_count = *now;
+ hctx->ccid3hctx_t_last_win_count = now;
hctx->ccid3hctx_last_win_count += min_t(u32, quarter_rtts, 5);
hctx->ccid3hctx_last_win_count &= 0xF; /* mod 16 */
-
- ccid3_pr_debug("now at %#X\n", hctx->ccid3hctx_last_win_count);
}
}
{
struct sock *sk = (struct sock *)data;
struct ccid3_hc_tx_sock *hctx = ccid3_hc_tx_sk(sk);
- struct timeval now;
unsigned long t_nfb = USEC_PER_SEC / 5;
bh_lock_sock(sk);
max(hctx->ccid3hctx_x_recv / 2,
(((__u64)hctx->ccid3hctx_s) << 6) /
(2 * TFRC_T_MBI));
-
- if (hctx->ccid3hctx_p == 0)
- dccp_timestamp(sk, &now);
} else {
hctx->ccid3hctx_x_recv = hctx->ccid3hctx_x_calc;
hctx->ccid3hctx_x_recv <<= 4;
}
/* Now recalculate X [RFC 3448, 4.3, step (4)] */
- ccid3_hc_tx_update_x(sk, &now);
+ ccid3_hc_tx_update_x(sk, NULL);
/*
* Schedule no feedback timer to expire in
* max(t_RTO, 2 * s/X) = max(t_RTO, 2 * t_ipi)
{
struct dccp_sock *dp = dccp_sk(sk);
struct ccid3_hc_tx_sock *hctx = ccid3_hc_tx_sk(sk);
- struct timeval now;
- suseconds_t delay;
-
- BUG_ON(hctx == NULL);
+ ktime_t now = ktime_get_real();
+ s64 delay;
/*
* This function is called only for Data and DataAck packets. Sending
if (unlikely(skb->len == 0))
return -EBADMSG;
- dccp_timestamp(sk, &now);
-
switch (hctx->ccid3hctx_state) {
case TFRC_SSTATE_NO_SENT:
sk_reset_timer(sk, &hctx->ccid3hctx_no_feedback_timer,
break;
case TFRC_SSTATE_NO_FBACK:
case TFRC_SSTATE_FBACK:
- delay = timeval_delta(&hctx->ccid3hctx_t_nom, &now);
+ delay = ktime_us_delta(hctx->ccid3hctx_t_nom, now);
ccid3_pr_debug("delay=%ld\n", (long)delay);
/*
* Scheduling of packet transmissions [RFC 3448, 4.6]
* else
* // send the packet in (t_nom - t_now) milliseconds.
*/
- if (delay - (suseconds_t)hctx->ccid3hctx_delta >= 0)
- return delay / 1000L;
+ if (delay - (s64)hctx->ccid3hctx_delta >= 1000)
+ return (u32)delay / 1000L;
- ccid3_hc_tx_update_win_count(hctx, &now);
+ ccid3_hc_tx_update_win_count(hctx, now);
break;
case TFRC_SSTATE_TERM:
DCCP_BUG("%s(%p) - Illegal state TERM", dccp_role(sk), sk);
hctx->ccid3hctx_idle = 0;
/* set the nominal send time for the next following packet */
- timeval_add_usecs(&hctx->ccid3hctx_t_nom, hctx->ccid3hctx_t_ipi);
-
+ hctx->ccid3hctx_t_nom = ktime_add_us(hctx->ccid3hctx_t_nom,
+ hctx->ccid3hctx_t_ipi);
return 0;
}
unsigned int len)
{
struct ccid3_hc_tx_sock *hctx = ccid3_hc_tx_sk(sk);
- struct timeval now;
struct dccp_tx_hist_entry *packet;
- BUG_ON(hctx == NULL);
-
ccid3_hc_tx_update_s(hctx, len);
packet = dccp_tx_hist_entry_new(ccid3_tx_hist, GFP_ATOMIC);
}
dccp_tx_hist_add_entry(&hctx->ccid3hctx_hist, packet);
- dccp_timestamp(sk, &now);
- packet->dccphtx_tstamp = now;
+ packet->dccphtx_tstamp = ktime_get_real();
packet->dccphtx_seqno = dccp_sk(sk)->dccps_gss;
packet->dccphtx_rtt = hctx->ccid3hctx_rtt;
packet->dccphtx_sent = 1;
struct ccid3_hc_tx_sock *hctx = ccid3_hc_tx_sk(sk);
struct ccid3_options_received *opt_recv;
struct dccp_tx_hist_entry *packet;
- struct timeval now;
+ ktime_t now;
unsigned long t_nfb;
u32 pinv, r_sample;
- BUG_ON(hctx == NULL);
-
/* we are only interested in ACKs */
if (!(DCCP_SKB_CB(skb)->dccpd_type == DCCP_PKT_ACK ||
DCCP_SKB_CB(skb)->dccpd_type == DCCP_PKT_DATAACK))
else /* can not exceed 100% */
hctx->ccid3hctx_p = 1000000 / pinv;
- dccp_timestamp(sk, &now);
-
+ now = ktime_get_real();
/*
* Calculate new round trip sample as per [RFC 3448, 4.3] by
* R_sample = (now - t_recvdata) - t_elapsed
*/
- r_sample = dccp_sample_rtt(sk, &now, &packet->dccphtx_tstamp);
+ r_sample = dccp_sample_rtt(sk, ktime_us_delta(now, packet->dccphtx_tstamp));
/*
* Update RTT estimate by
struct ccid3_hc_tx_sock *hctx = ccid3_hc_tx_sk(sk);
struct ccid3_options_received *opt_recv;
- BUG_ON(hctx == NULL);
-
opt_recv = &hctx->ccid3hctx_options_received;
if (opt_recv->ccid3or_seqno != dp->dccps_gsr) {
{
struct ccid3_hc_tx_sock *hctx = ccid3_hc_tx_sk(sk);
- BUG_ON(hctx == NULL);
-
ccid3_hc_tx_set_state(sk, TFRC_SSTATE_TERM);
sk_stop_timer(sk, &hctx->ccid3hctx_no_feedback_timer);
static void ccid3_hc_tx_get_info(struct sock *sk, struct tcp_info *info)
{
- const struct ccid3_hc_tx_sock *hctx = ccid3_hc_tx_sk(sk);
+ struct ccid3_hc_tx_sock *hctx;
/* Listen socks doesn't have a private CCID block */
if (sk->sk_state == DCCP_LISTEN)
return;
- BUG_ON(hctx == NULL);
-
+ hctx = ccid3_hc_tx_sk(sk);
info->tcpi_rto = hctx->ccid3hctx_t_rto;
info->tcpi_rtt = hctx->ccid3hctx_rtt;
}
static int ccid3_hc_tx_getsockopt(struct sock *sk, const int optname, int len,
u32 __user *optval, int __user *optlen)
{
- const struct ccid3_hc_tx_sock *hctx = ccid3_hc_tx_sk(sk);
+ const struct ccid3_hc_tx_sock *hctx;
const void *val;
/* Listen socks doesn't have a private CCID block */
if (sk->sk_state == DCCP_LISTEN)
return -EINVAL;
+ hctx = ccid3_hc_tx_sk(sk);
switch (optname) {
case DCCP_SOCKOPT_CCID_TX_INFO:
if (len < sizeof(hctx->ccid3hctx_tfrc))
struct ccid3_hc_rx_sock *hcrx = ccid3_hc_rx_sk(sk);
struct dccp_sock *dp = dccp_sk(sk);
struct dccp_rx_hist_entry *packet;
- struct timeval now;
+ ktime_t now;
suseconds_t delta;
ccid3_pr_debug("%s(%p) - entry \n", dccp_role(sk), sk);
- dccp_timestamp(sk, &now);
+ now = ktime_get_real();
switch (hcrx->ccid3hcrx_state) {
case TFRC_RSTATE_NO_DATA:
hcrx->ccid3hcrx_x_recv = 0;
break;
case TFRC_RSTATE_DATA:
- delta = timeval_delta(&now,
- &hcrx->ccid3hcrx_tstamp_last_feedback);
+ delta = ktime_us_delta(now,
+ hcrx->ccid3hcrx_tstamp_last_feedback);
DCCP_BUG_ON(delta < 0);
hcrx->ccid3hcrx_x_recv =
scaled_div32(hcrx->ccid3hcrx_bytes_recv, delta);
hcrx->ccid3hcrx_bytes_recv = 0;
/* Elapsed time information [RFC 4340, 13.2] in units of 10 * usecs */
- delta = timeval_delta(&now, &packet->dccphrx_tstamp);
+ delta = ktime_us_delta(now, packet->dccphrx_tstamp);
DCCP_BUG_ON(delta < 0);
hcrx->ccid3hcrx_elapsed_time = delta / 10;
static int ccid3_hc_rx_insert_options(struct sock *sk, struct sk_buff *skb)
{
- const struct ccid3_hc_rx_sock *hcrx = ccid3_hc_rx_sk(sk);
+ const struct ccid3_hc_rx_sock *hcrx;
__be32 x_recv, pinv;
- BUG_ON(hcrx == NULL);
-
if (!(sk->sk_state == DCCP_OPEN || sk->sk_state == DCCP_PARTOPEN))
return 0;
+ hcrx = ccid3_hc_rx_sk(sk);
DCCP_SKB_CB(skb)->dccpd_ccval = hcrx->ccid3hcrx_ccval_last_counter;
if (dccp_packet_without_ack(skb))
return 0;
}
-/* calculate first loss interval
- *
- * returns estimated loss interval in usecs */
-
-static u32 ccid3_hc_rx_calc_first_li(struct sock *sk)
-{
- struct ccid3_hc_rx_sock *hcrx = ccid3_hc_rx_sk(sk);
- struct dccp_rx_hist_entry *entry, *next, *tail = NULL;
- u32 x_recv, p;
- suseconds_t rtt, delta;
- struct timeval tstamp = { 0, };
- int interval = 0;
- int win_count = 0;
- int step = 0;
- u64 fval;
-
- list_for_each_entry_safe(entry, next, &hcrx->ccid3hcrx_hist,
- dccphrx_node) {
- if (dccp_rx_hist_entry_data_packet(entry)) {
- tail = entry;
-
- switch (step) {
- case 0:
- tstamp = entry->dccphrx_tstamp;
- win_count = entry->dccphrx_ccval;
- step = 1;
- break;
- case 1:
- interval = win_count - entry->dccphrx_ccval;
- if (interval < 0)
- interval += TFRC_WIN_COUNT_LIMIT;
- if (interval > 4)
- goto found;
- break;
- }
- }
- }
-
- if (unlikely(step == 0)) {
- DCCP_WARN("%s(%p), packet history has no data packets!\n",
- dccp_role(sk), sk);
- return ~0;
- }
-
- if (unlikely(interval == 0)) {
- DCCP_WARN("%s(%p), Could not find a win_count interval > 0."
- "Defaulting to 1\n", dccp_role(sk), sk);
- interval = 1;
- }
-found:
- if (!tail) {
- DCCP_CRIT("tail is null\n");
- return ~0;
- }
-
- delta = timeval_delta(&tstamp, &tail->dccphrx_tstamp);
- DCCP_BUG_ON(delta < 0);
-
- rtt = delta * 4 / interval;
- ccid3_pr_debug("%s(%p), approximated RTT to %dus\n",
- dccp_role(sk), sk, (int)rtt);
-
- /*
- * Determine the length of the first loss interval via inverse lookup.
- * Assume that X_recv can be computed by the throughput equation
- * s
- * X_recv = --------
- * R * fval
- * Find some p such that f(p) = fval; return 1/p [RFC 3448, 6.3.1].
- */
- if (rtt == 0) { /* would result in divide-by-zero */
- DCCP_WARN("RTT==0\n");
- return ~0;
- }
-
- dccp_timestamp(sk, &tstamp);
- delta = timeval_delta(&tstamp, &hcrx->ccid3hcrx_tstamp_last_feedback);
- DCCP_BUG_ON(delta <= 0);
-
- x_recv = scaled_div32(hcrx->ccid3hcrx_bytes_recv, delta);
- if (x_recv == 0) { /* would also trigger divide-by-zero */
- DCCP_WARN("X_recv==0\n");
- if ((x_recv = hcrx->ccid3hcrx_x_recv) == 0) {
- DCCP_BUG("stored value of X_recv is zero");
- return ~0;
- }
- }
-
- fval = scaled_div(hcrx->ccid3hcrx_s, rtt);
- fval = scaled_div32(fval, x_recv);
- p = tfrc_calc_x_reverse_lookup(fval);
-
- ccid3_pr_debug("%s(%p), receive rate=%u bytes/s, implied "
- "loss rate=%u\n", dccp_role(sk), sk, x_recv, p);
-
- if (p == 0)
- return ~0;
- else
- return 1000000 / p;
-}
-
-static void ccid3_hc_rx_update_li(struct sock *sk, u64 seq_loss, u8 win_loss)
-{
- struct ccid3_hc_rx_sock *hcrx = ccid3_hc_rx_sk(sk);
- struct dccp_li_hist_entry *head;
- u64 seq_temp;
-
- if (list_empty(&hcrx->ccid3hcrx_li_hist)) {
- if (!dccp_li_hist_interval_new(ccid3_li_hist,
- &hcrx->ccid3hcrx_li_hist, seq_loss, win_loss))
- return;
-
- head = list_entry(hcrx->ccid3hcrx_li_hist.next,
- struct dccp_li_hist_entry, dccplih_node);
- head->dccplih_interval = ccid3_hc_rx_calc_first_li(sk);
- } else {
- struct dccp_li_hist_entry *entry;
- struct list_head *tail;
-
- head = list_entry(hcrx->ccid3hcrx_li_hist.next,
- struct dccp_li_hist_entry, dccplih_node);
- /* FIXME win count check removed as was wrong */
- /* should make this check with receive history */
- /* and compare there as per section 10.2 of RFC4342 */
-
- /* new loss event detected */
- /* calculate last interval length */
- seq_temp = dccp_delta_seqno(head->dccplih_seqno, seq_loss);
- entry = dccp_li_hist_entry_new(ccid3_li_hist, GFP_ATOMIC);
-
- if (entry == NULL) {
- DCCP_BUG("out of memory - can not allocate entry");
- return;
- }
-
- list_add(&entry->dccplih_node, &hcrx->ccid3hcrx_li_hist);
-
- tail = hcrx->ccid3hcrx_li_hist.prev;
- list_del(tail);
- kmem_cache_free(ccid3_li_hist->dccplih_slab, tail);
-
- /* Create the newest interval */
- entry->dccplih_seqno = seq_loss;
- entry->dccplih_interval = seq_temp;
- entry->dccplih_win_count = win_loss;
- }
-}
-
static int ccid3_hc_rx_detect_loss(struct sock *sk,
struct dccp_rx_hist_entry *packet)
{
while (dccp_delta_seqno(hcrx->ccid3hcrx_seqno_nonloss, seqno)
> TFRC_RECV_NUM_LATE_LOSS) {
loss = 1;
- ccid3_hc_rx_update_li(sk, hcrx->ccid3hcrx_seqno_nonloss,
- hcrx->ccid3hcrx_ccval_nonloss);
+ dccp_li_update_li(sk,
+ &hcrx->ccid3hcrx_li_hist,
+ &hcrx->ccid3hcrx_hist,
+ hcrx->ccid3hcrx_tstamp_last_feedback,
+ hcrx->ccid3hcrx_s,
+ hcrx->ccid3hcrx_bytes_recv,
+ hcrx->ccid3hcrx_x_recv,
+ hcrx->ccid3hcrx_seqno_nonloss,
+ hcrx->ccid3hcrx_ccval_nonloss);
tmp_seqno = hcrx->ccid3hcrx_seqno_nonloss;
dccp_inc_seqno(&tmp_seqno);
hcrx->ccid3hcrx_seqno_nonloss = tmp_seqno;
struct ccid3_hc_rx_sock *hcrx = ccid3_hc_rx_sk(sk);
const struct dccp_options_received *opt_recv;
struct dccp_rx_hist_entry *packet;
- struct timeval now;
u32 p_prev, r_sample, rtt_prev;
int loss, payload_size;
-
- BUG_ON(hcrx == NULL);
+ ktime_t now;
opt_recv = &dccp_sk(sk)->dccps_options_received;
case DCCP_PKT_DATAACK:
if (opt_recv->dccpor_timestamp_echo == 0)
break;
+ r_sample = dccp_timestamp() - opt_recv->dccpor_timestamp_echo;
rtt_prev = hcrx->ccid3hcrx_rtt;
- dccp_timestamp(sk, &now);
- r_sample = dccp_sample_rtt(sk, &now, NULL);
+ r_sample = dccp_sample_rtt(sk, 10 * r_sample);
if (hcrx->ccid3hcrx_state == TFRC_RSTATE_NO_DATA)
hcrx->ccid3hcrx_rtt = r_sample;
return;
}
- packet = dccp_rx_hist_entry_new(ccid3_rx_hist, sk, opt_recv->dccpor_ndp,
+ packet = dccp_rx_hist_entry_new(ccid3_rx_hist, opt_recv->dccpor_ndp,
skb, GFP_ATOMIC);
if (unlikely(packet == NULL)) {
DCCP_WARN("%s(%p), Not enough mem to add rx packet "
if (loss)
break;
- dccp_timestamp(sk, &now);
- if ((timeval_delta(&now, &hcrx->ccid3hcrx_tstamp_last_ack) -
- (suseconds_t)hcrx->ccid3hcrx_rtt) >= 0) {
+ now = ktime_get_real();
+ if ((ktime_us_delta(now, hcrx->ccid3hcrx_tstamp_last_ack) -
+ (s64)hcrx->ccid3hcrx_rtt) >= 0) {
hcrx->ccid3hcrx_tstamp_last_ack = now;
ccid3_hc_rx_send_feedback(sk);
}
hcrx->ccid3hcrx_state = TFRC_RSTATE_NO_DATA;
INIT_LIST_HEAD(&hcrx->ccid3hcrx_hist);
INIT_LIST_HEAD(&hcrx->ccid3hcrx_li_hist);
- dccp_timestamp(sk, &hcrx->ccid3hcrx_tstamp_last_ack);
- hcrx->ccid3hcrx_tstamp_last_feedback = hcrx->ccid3hcrx_tstamp_last_ack;
+ hcrx->ccid3hcrx_tstamp_last_feedback =
+ hcrx->ccid3hcrx_tstamp_last_ack = ktime_get_real();
hcrx->ccid3hcrx_s = 0;
hcrx->ccid3hcrx_rtt = 0;
return 0;
{
struct ccid3_hc_rx_sock *hcrx = ccid3_hc_rx_sk(sk);
- BUG_ON(hcrx == NULL);
-
ccid3_hc_rx_set_state(sk, TFRC_RSTATE_TERM);
/* Empty packet history */
dccp_rx_hist_purge(ccid3_rx_hist, &hcrx->ccid3hcrx_hist);
/* Empty loss interval history */
- dccp_li_hist_purge(ccid3_li_hist, &hcrx->ccid3hcrx_li_hist);
+ dccp_li_hist_purge(&hcrx->ccid3hcrx_li_hist);
}
static void ccid3_hc_rx_get_info(struct sock *sk, struct tcp_info *info)
{
- const struct ccid3_hc_rx_sock *hcrx = ccid3_hc_rx_sk(sk);
+ const struct ccid3_hc_rx_sock *hcrx;
/* Listen socks doesn't have a private CCID block */
if (sk->sk_state == DCCP_LISTEN)
return;
- BUG_ON(hcrx == NULL);
-
+ hcrx = ccid3_hc_rx_sk(sk);
info->tcpi_ca_state = hcrx->ccid3hcrx_state;
info->tcpi_options |= TCPI_OPT_TIMESTAMPS;
info->tcpi_rcv_rtt = hcrx->ccid3hcrx_rtt;
static int ccid3_hc_rx_getsockopt(struct sock *sk, const int optname, int len,
u32 __user *optval, int __user *optlen)
{
- const struct ccid3_hc_rx_sock *hcrx = ccid3_hc_rx_sk(sk);
+ const struct ccid3_hc_rx_sock *hcrx;
const void *val;
/* Listen socks doesn't have a private CCID block */
if (sk->sk_state == DCCP_LISTEN)
return -EINVAL;
+ hcrx = ccid3_hc_rx_sk(sk);
switch (optname) {
case DCCP_SOCKOPT_CCID_RX_INFO:
if (len < sizeof(hcrx->ccid3hcrx_tfrc))
};
#ifdef CONFIG_IP_DCCP_CCID3_DEBUG
-module_param(ccid3_debug, int, 0444);
+module_param(ccid3_debug, bool, 0444);
MODULE_PARM_DESC(ccid3_debug, "Enable debug messages");
#endif
if (ccid3_tx_hist == NULL)
goto out_free_rx;
- ccid3_li_hist = dccp_li_hist_new("ccid3");
- if (ccid3_li_hist == NULL)
- goto out_free_tx;
-
rc = ccid_register(&ccid3);
if (rc != 0)
- goto out_free_loss_interval_history;
+ goto out_free_tx;
out:
return rc;
-out_free_loss_interval_history:
- dccp_li_hist_delete(ccid3_li_hist);
- ccid3_li_hist = NULL;
out_free_tx:
dccp_tx_hist_delete(ccid3_tx_hist);
ccid3_tx_hist = NULL;
dccp_rx_hist_delete(ccid3_rx_hist);
ccid3_rx_hist = NULL;
}
- if (ccid3_li_hist != NULL) {
- dccp_li_hist_delete(ccid3_li_hist);
- ccid3_li_hist = NULL;
- }
}
module_exit(ccid3_module_exit);