12 files changed, 136 insertions, 124 deletions

diff --git a/net/dccp/ackvec.c b/net/dccp/ackvec.c
index 1f4727ddbdbf..a086c6312d3b 100644
--- a/net/dccp/ackvec.c
+++ b/net/dccp/ackvec.c
@@ -223,7 +223,7 @@ static inline int dccp_ackvec_set_buf_head_state(struct dccp_ackvec *av,
                         gap = -new_head;
                 }
                 new_head += DCCP_MAX_ACKVEC_LEN;
-        } 
+        }
 
         av->dccpav_buf_head = new_head;
 
@@ -336,7 +336,7 @@ out_duplicate:
 void dccp_ackvector_print(const u64 ackno, const unsigned char *vector, int len)
 {
         dccp_pr_debug_cat("ACK vector len=%d, ackno=%llu |", len,
-                                        (unsigned long long)ackno);
+                         (unsigned long long)ackno);
 
         while (len--) {
                 const u8 state = (*vector & DCCP_ACKVEC_STATE_MASK) >> 6;
diff --git a/net/dccp/ccids/ccid2.c b/net/dccp/ccids/ccid2.c
index 2555be8f4790..fd38b05d6f79 100644
--- a/net/dccp/ccids/ccid2.c
+++ b/net/dccp/ccids/ccid2.c
@@ -351,7 +351,7 @@ static void ccid2_hc_tx_packet_sent(struct sock *sk, int more, unsigned int len)
 
                 while (seqp != hctx->ccid2hctx_seqh) {
                         ccid2_pr_debug("out seq=%llu acked=%d time=%lu\n",
-                                       (unsigned long long)seqp->ccid2s_seq,
+                                       (unsigned long long)seqp->ccid2s_seq,
                                        seqp->ccid2s_acked, seqp->ccid2s_sent);
                         seqp = seqp->ccid2s_next;
                 }
@@ -473,7 +473,7 @@ static inline void ccid2_new_ack(struct sock *sk,
                 /* first measurement */
                 if (hctx->ccid2hctx_srtt == -1) {
                         ccid2_pr_debug("R: %lu Time=%lu seq=%llu\n",
-                                       r, jiffies,
+                                       r, jiffies,
                                        (unsigned long long)seqp->ccid2s_seq);
                         ccid2_change_srtt(hctx, r);
                         hctx->ccid2hctx_rttvar = r >> 1;
@@ -518,8 +518,8 @@ static inline void ccid2_new_ack(struct sock *sk,
                 hctx->ccid2hctx_lastrtt = jiffies;
 
                 ccid2_pr_debug("srtt: %ld rttvar: %ld rto: %ld (HZ=%d) R=%lu\n",
-                               hctx->ccid2hctx_srtt, hctx->ccid2hctx_rttvar,
-                               hctx->ccid2hctx_rto, HZ, r);
+                               hctx->ccid2hctx_srtt, hctx->ccid2hctx_rttvar,
+                               hctx->ccid2hctx_rto, HZ, r);
                 hctx->ccid2hctx_sent = 0;
         }
 
@@ -667,9 +667,9 @@ static void ccid2_hc_tx_packet_recv(struct sock *sk, struct sk_buff *skb)
                                 /* new packet received or marked */
                                 if (state != DCCP_ACKVEC_STATE_NOT_RECEIVED &&
                                     !seqp->ccid2s_acked) {
-                                        if (state ==
+                                        if (state ==
                                             DCCP_ACKVEC_STATE_ECN_MARKED) {
-                                                ccid2_congestion_event(hctx,
+                                                ccid2_congestion_event(hctx,
                                                                        seqp);
                                         } else
                                                 ccid2_new_ack(sk, seqp,
diff --git a/net/dccp/ccids/ccid3.c b/net/dccp/ccids/ccid3.c
index 5e817e2f1ebc..fa6b75372ed7 100644
--- a/net/dccp/ccids/ccid3.c
+++ b/net/dccp/ccids/ccid3.c
@@ -124,18 +124,18 @@ static void ccid3_hc_tx_update_x(struct sock *sk, struct timeval *now)
         if (hctx->ccid3hctx_p > 0) {
 
                 hctx->ccid3hctx_x = min(((__u64)hctx->ccid3hctx_x_calc) << 6,
-                                        hctx->ccid3hctx_x_recv * 2           );
+                                        hctx->ccid3hctx_x_recv * 2);
                 hctx->ccid3hctx_x = max(hctx->ccid3hctx_x,
                                         (((__u64)hctx->ccid3hctx_s) << 6) /
-                                                                   TFRC_T_MBI);
+                                                                TFRC_T_MBI);
 
         } else if (timeval_delta(now, &hctx->ccid3hctx_t_ld) -
-                        (suseconds_t)hctx->ccid3hctx_rtt >= 0 ) {
+                        (suseconds_t)hctx->ccid3hctx_rtt >= 0) {
 
                 hctx->ccid3hctx_x =
                         max(2 * min(hctx->ccid3hctx_x, hctx->ccid3hctx_x_recv),
                             scaled_div(((__u64)hctx->ccid3hctx_s) << 6,
-                                       hctx->ccid3hctx_rtt             )      );
+                                       hctx->ccid3hctx_rtt));
                 hctx->ccid3hctx_t_ld = *now;
         }
 
@@ -144,8 +144,8 @@ static void ccid3_hc_tx_update_x(struct sock *sk, struct timeval *now)
 }
 
 /*
- *      Track the mean packet size `s' (cf. RFC 4342, 5.3 and  RFC 3448, 4.1)
- *      @len: DCCP packet payload size in bytes
+ *      Track the mean packet size `s' (cf. RFC 4342, 5.3 and  RFC 3448, 4.1)
+ *      @len: DCCP packet payload size in bytes
  */
 static inline void ccid3_hc_tx_update_s(struct ccid3_hc_tx_sock *hctx, int len)
 {
@@ -163,8 +163,8 @@ static inline void ccid3_hc_tx_update_s(struct ccid3_hc_tx_sock *hctx, int len)
 }
 
 /*
- *      Update Window Counter using the algorithm from [RFC 4342, 8.1].
- *      The algorithm is not applicable if RTT < 4 microseconds.
+ *      Update Window Counter using the algorithm from [RFC 4342, 8.1].
+ *      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)
@@ -228,12 +228,13 @@ static void ccid3_hc_tx_no_feedback_timer(unsigned long data)
                  */
                 if (!hctx->ccid3hctx_idle ||
                     (hctx->ccid3hctx_x_recv >= 4 *
-                     scaled_div(((__u64)hctx->ccid3hctx_s) << 6, hctx->ccid3hctx_rtt))) {
+                     scaled_div(((__u64)hctx->ccid3hctx_s) << 6,
+                                hctx->ccid3hctx_rtt))) {
                         struct timeval now;
 
                         ccid3_pr_debug("%s(%p, state=%s), not idle\n",
                                        dccp_role(sk), sk,
-                                       ccid3_tx_state_name(hctx->ccid3hctx_state));
+                                   ccid3_tx_state_name(hctx->ccid3hctx_state));
 
                         /*
                          *  Modify the cached value of X_recv [RFC 3448, 4.4]
@@ -248,12 +249,13 @@ static void ccid3_hc_tx_no_feedback_timer(unsigned long data)
                         BUG_ON(hctx->ccid3hctx_p && !hctx->ccid3hctx_x_calc);
 
                         if (hctx->ccid3hctx_p  == 0 ||
-                            hctx->ccid3hctx_x_calc > (hctx->ccid3hctx_x_recv >> 5))  {
+                            (hctx->ccid3hctx_x_calc >
+                             (hctx->ccid3hctx_x_recv >> 5))) {
 
                                 hctx->ccid3hctx_x_recv =
                                         max(hctx->ccid3hctx_x_recv / 2,
                                             (((__u64)hctx->ccid3hctx_s) << 6) /
-                                                                (2*TFRC_T_MBI));
+                                                          (2 * TFRC_T_MBI));
 
                                 if (hctx->ccid3hctx_p == 0)
                                         dccp_timestamp(sk, &now);
@@ -316,7 +318,8 @@ static int ccid3_hc_tx_send_packet(struct sock *sk, struct sk_buff *skb)
         switch (hctx->ccid3hctx_state) {
         case TFRC_SSTATE_NO_SENT:
                 sk_reset_timer(sk, &hctx->ccid3hctx_no_feedback_timer,
-                               jiffies + usecs_to_jiffies(TFRC_INITIAL_TIMEOUT));
+                               (jiffies +
+                                usecs_to_jiffies(TFRC_INITIAL_TIMEOUT)));
                 hctx->ccid3hctx_last_win_count   = 0;
                 hctx->ccid3hctx_t_last_win_count = now;
                 ccid3_hc_tx_set_state(sk, TFRC_SSTATE_NO_FBACK);
@@ -338,7 +341,7 @@ static int ccid3_hc_tx_send_packet(struct sock *sk, struct sk_buff *skb)
         case TFRC_SSTATE_FBACK:
                 delay = timeval_delta(&hctx->ccid3hctx_t_nom, &now);
                 /*
-                 *      Scheduling of packet transmissions [RFC 3448, 4.6]
+                 *      Scheduling of packet transmissions [RFC 3448, 4.6]
                  *
                  * if (t_now > t_nom - delta)
                  *       // send the packet now
@@ -365,7 +368,8 @@ static int ccid3_hc_tx_send_packet(struct sock *sk, struct sk_buff *skb)
         return 0;
 }
 
-static void ccid3_hc_tx_packet_sent(struct sock *sk, int more, unsigned int len)
+static void ccid3_hc_tx_packet_sent(struct sock *sk, int more,
+                                    unsigned int len)
 {
         struct ccid3_hc_tx_sock *hctx = ccid3_hc_tx_sk(sk);
         struct timeval now;
@@ -415,12 +419,12 @@ static void ccid3_hc_tx_packet_recv(struct sock *sk, struct sk_buff *skb)
         case TFRC_SSTATE_FBACK:
                 /* get packet from history to look up t_recvdata */
                 packet = dccp_tx_hist_find_entry(&hctx->ccid3hctx_hist,
-                                                 DCCP_SKB_CB(skb)->dccpd_ack_seq);
+                                              DCCP_SKB_CB(skb)->dccpd_ack_seq);
                 if (unlikely(packet == NULL)) {
                         DCCP_WARN("%s(%p), seqno %llu(%s) doesn't exist "
                                   "in history!\n",  dccp_role(sk), sk,
                             (unsigned long long)DCCP_SKB_CB(skb)->dccpd_ack_seq,
-                                  dccp_packet_name(DCCP_SKB_CB(skb)->dccpd_type));
+                                dccp_packet_name(DCCP_SKB_CB(skb)->dccpd_type));
                         return;
                 }
 
@@ -433,13 +437,13 @@ static void ccid3_hc_tx_packet_recv(struct sock *sk, struct sk_buff *skb)
                 if (pinv == ~0U || pinv == 0)          /* see RFC 4342, 8.5   */
                         hctx->ccid3hctx_p = 0;
                 else                                   /* can not exceed 100% */
-                        hctx->ccid3hctx_p = 1000000 / pinv;
+                        hctx->ccid3hctx_p = 1000000 / pinv;
 
                 dccp_timestamp(sk, &now);
 
                 /*
                  * Calculate new round trip sample as per [RFC 3448, 4.3] by
-                 *      R_sample  =  (now - t_recvdata) - t_elapsed
+                 *      R_sample  =  (now - t_recvdata) - t_elapsed
                  */
                 r_sample  = timeval_delta(&now, &packet->dccphtx_tstamp);
                 t_elapsed = dp->dccps_options_received.dccpor_elapsed_time * 10;
@@ -465,7 +469,7 @@ static void ccid3_hc_tx_packet_recv(struct sock *sk, struct sk_buff *skb)
                          * Larger Initial Windows [RFC 4342, sec. 5]
                          * We deviate in that we use `s' instead of `MSS'.
                          */
-                        __u64 w_init = min(    4 * hctx->ccid3hctx_s,
+                        __u64 w_init = min(4 * hctx->ccid3hctx_s,
                                            max(2 * hctx->ccid3hctx_s, 4380));
                         hctx->ccid3hctx_rtt  = r_sample;
                         hctx->ccid3hctx_x    = scaled_div(w_init << 6, r_sample);
@@ -475,13 +479,14 @@ static void ccid3_hc_tx_packet_recv(struct sock *sk, struct sk_buff *skb)
 
                         ccid3_pr_debug("%s(%p), s=%u, w_init=%llu, "
                                        "R_sample=%dus, X=%u\n", dccp_role(sk),
-                                       sk, hctx->ccid3hctx_s, w_init, (int)r_sample,
+                                       sk, hctx->ccid3hctx_s, w_init,
+                                       (int)r_sample,
                                        (unsigned)(hctx->ccid3hctx_x >> 6));
 
                         ccid3_hc_tx_set_state(sk, TFRC_SSTATE_FBACK);
                 } else {
                         hctx->ccid3hctx_rtt = (9 * hctx->ccid3hctx_rtt +
-                                                   (u32)r_sample        ) / 10;
+                                                   (u32)r_sample) / 10;
 
                         /* Update sending rate (step 4 of [RFC 3448, 4.3]) */
                         if (hctx->ccid3hctx_p > 0)
@@ -492,12 +497,13 @@ static void ccid3_hc_tx_packet_recv(struct sock *sk, struct sk_buff *skb)
                         ccid3_hc_tx_update_x(sk, &now);
 
                         ccid3_pr_debug("%s(%p), RTT=%uus (sample=%dus), s=%u, "
-                                       "p=%u, X_calc=%u, X_recv=%u, X=%u\n", dccp_role(sk),
+                                       "p=%u, X_calc=%u, X_recv=%u, X=%u\n",
+                                       dccp_role(sk),
                                        sk, hctx->ccid3hctx_rtt, (int)r_sample,
                                        hctx->ccid3hctx_s, hctx->ccid3hctx_p,
                                        hctx->ccid3hctx_x_calc,
                                        (unsigned)(hctx->ccid3hctx_x_recv >> 6),
-                                       (unsigned)(hctx->ccid3hctx_x >> 6)     );
+                                       (unsigned)(hctx->ccid3hctx_x >> 6));
                 }
 
                 /* unschedule no feedback timer */
@@ -507,20 +513,20 @@ static void ccid3_hc_tx_packet_recv(struct sock *sk, struct sk_buff *skb)
                 dccp_tx_hist_purge_older(ccid3_tx_hist,
                                          &hctx->ccid3hctx_hist, packet);
                 /*
-                 * As we have calculated new ipi, delta, t_nom it is possible that
-                 * we now can send a packet, so wake up dccp_wait_for_ccid
+                 * As we have calculated new ipi, delta, t_nom it is possible
+                 * that we now can send a packet, so wake up dccp_wait_for_ccid
                  */
                 sk->sk_write_space(sk);
 
                 /*
                  * Update timeout interval for the nofeedback timer.
                  * We use a configuration option to increase the lower bound.
-                 * This can help avoid triggering the nofeedback timer too often
-                 * ('spinning') on LANs with small RTTs.
+                 * This can help avoid triggering the nofeedback timer too
+                 * often ('spinning') on LANs with small RTTs.
                  */
                 hctx->ccid3hctx_t_rto = max_t(u32, 4 * hctx->ccid3hctx_rtt,
                                                    CONFIG_IP_DCCP_CCID3_RTO *
-                                                   (USEC_PER_SEC/1000)       );
+                                                   (USEC_PER_SEC/1000));
                 /*
                  * Schedule no feedback timer to expire in
                  * max(t_RTO, 2 * s/X)  =  max(t_RTO, 2 * t_ipi)
@@ -528,7 +534,8 @@ static void ccid3_hc_tx_packet_recv(struct sock *sk, struct sk_buff *skb)
                 t_nfb = max(hctx->ccid3hctx_t_rto, 2 * hctx->ccid3hctx_t_ipi);
 
                 ccid3_pr_debug("%s(%p), Scheduled no feedback timer to "
-                               "expire in %lu jiffies (%luus)\n", dccp_role(sk),
+                               "expire in %lu jiffies (%luus)\n",
+                               dccp_role(sk),
                                sk, usecs_to_jiffies(t_nfb), t_nfb);
 
                 sk_reset_timer(sk, &hctx->ccid3hctx_no_feedback_timer,
@@ -538,7 +545,9 @@ static void ccid3_hc_tx_packet_recv(struct sock *sk, struct sk_buff *skb)
                 hctx->ccid3hctx_idle = 1;
                 break;
         case TFRC_SSTATE_NO_SENT:
-                /* XXX when implementing bidirectional rx/tx check this again */
+                /*
+                 * XXX when implementing bidirectional rx/tx check this again
+                 */
                 DCCP_WARN("Illegal ACK received - no packet sent\n");
                 /* fall through */
         case TFRC_SSTATE_TERM:          /* ignore feedback when closing */
@@ -575,7 +584,8 @@ static int ccid3_hc_tx_parse_options(struct sock *sk, unsigned char option,
                                   dccp_role(sk), sk, len);
                         rc = -EINVAL;
                 } else {
-                        opt_recv->ccid3or_loss_event_rate = ntohl(*(__be32 *)value);
+                        opt_recv->ccid3or_loss_event_rate =
+                                                ntohl(*(__be32 *)value);
                         ccid3_pr_debug("%s(%p), LOSS_EVENT_RATE=%u\n",
                                        dccp_role(sk), sk,
                                        opt_recv->ccid3or_loss_event_rate);
@@ -596,7 +606,8 @@ static int ccid3_hc_tx_parse_options(struct sock *sk, unsigned char option,
                                   dccp_role(sk), sk, len);
                         rc = -EINVAL;
                 } else {
-                        opt_recv->ccid3or_receive_rate = ntohl(*(__be32 *)value);
+                        opt_recv->ccid3or_receive_rate =
+                                                ntohl(*(__be32 *)value);
                         ccid3_pr_debug("%s(%p), RECEIVE_RATE=%u\n",
                                        dccp_role(sk), sk,
                                        opt_recv->ccid3or_receive_rate);
@@ -616,7 +627,8 @@ static int ccid3_hc_tx_init(struct ccid *ccid, struct sock *sk)
         hctx->ccid3hctx_state = TFRC_SSTATE_NO_SENT;
         INIT_LIST_HEAD(&hctx->ccid3hctx_hist);
 
-        hctx->ccid3hctx_no_feedback_timer.function = ccid3_hc_tx_no_feedback_timer;
+        hctx->ccid3hctx_no_feedback_timer.function =
+                                ccid3_hc_tx_no_feedback_timer;
         hctx->ccid3hctx_no_feedback_timer.data     = (unsigned long)sk;
         init_timer(&hctx->ccid3hctx_no_feedback_timer);
 
@@ -754,9 +766,9 @@ static int ccid3_hc_rx_insert_options(struct sock *sk, struct sk_buff *skb)
                                              hcrx->ccid3hcrx_elapsed_time)) ||
             dccp_insert_option_timestamp(sk, skb) ||
             dccp_insert_option(sk, skb, TFRC_OPT_LOSS_EVENT_RATE,
-                               &pinv, sizeof(pinv)) ||
+                               &pinv, sizeof(pinv)) ||
             dccp_insert_option(sk, skb, TFRC_OPT_RECEIVE_RATE,
-                               &x_recv, sizeof(x_recv)))
+                               &x_recv, sizeof(x_recv)))
                 return -1;
 
         return 0;
@@ -827,9 +839,9 @@ found:
         /*
          * 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
+         *                  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 */
@@ -860,7 +872,7 @@ found:
         if (p == 0)
                 return ~0;
         else
-                return 1000000 / p; 
+                return 1000000 / p;
 }
 
 static void ccid3_hc_rx_update_li(struct sock *sk, u64 seq_loss, u8 win_loss)
@@ -914,7 +926,8 @@ static int ccid3_hc_rx_detect_loss(struct sock *sk,
                                     struct dccp_rx_hist_entry *packet)
 {
         struct ccid3_hc_rx_sock *hcrx = ccid3_hc_rx_sk(sk);
-        struct dccp_rx_hist_entry *rx_hist = dccp_rx_hist_head(&hcrx->ccid3hcrx_hist);
+        struct dccp_rx_hist_entry *rx_hist =
+                                dccp_rx_hist_head(&hcrx->ccid3hcrx_hist);
         u64 seqno = packet->dccphrx_seqno;
         u64 tmp_seqno;
         int loss = 0;
@@ -942,7 +955,7 @@ static int ccid3_hc_rx_detect_loss(struct sock *sk,
                 dccp_inc_seqno(&tmp_seqno);
                 while (dccp_rx_hist_find_entry(&hcrx->ccid3hcrx_hist,
                    tmp_seqno, &ccval)) {
-                        hcrx->ccid3hcrx_seqno_nonloss = tmp_seqno;
+                        hcrx->ccid3hcrx_seqno_nonloss = tmp_seqno;
                         hcrx->ccid3hcrx_ccval_nonloss = ccval;
                         dccp_inc_seqno(&tmp_seqno);
                 }
@@ -1044,8 +1057,8 @@ static void ccid3_hc_rx_packet_recv(struct sock *sk, struct sk_buff *skb)
                         break;
 
                 dccp_timestamp(sk, &now);
-                if (timeval_delta(&now, &hcrx->ccid3hcrx_tstamp_last_ack) -
-                                        (suseconds_t)hcrx->ccid3hcrx_rtt >= 0) {
+                if ((timeval_delta(&now, &hcrx->ccid3hcrx_tstamp_last_ack) -
+                     (suseconds_t)hcrx->ccid3hcrx_rtt) >= 0) {
                         hcrx->ccid3hcrx_tstamp_last_ack = now;
                         ccid3_hc_rx_send_feedback(sk);
                 }
@@ -1118,9 +1131,9 @@ static void ccid3_hc_rx_get_info(struct sock *sk, struct tcp_info *info)
 
         BUG_ON(hcrx == NULL);
 
-        info->tcpi_ca_state     = hcrx->ccid3hcrx_state;
-        info->tcpi_options      |= TCPI_OPT_TIMESTAMPS;
-        info->tcpi_rcv_rtt      = hcrx->ccid3hcrx_rtt;
+        info->tcpi_ca_state = hcrx->ccid3hcrx_state;
+        info->tcpi_options  |= TCPI_OPT_TIMESTAMPS;
+        info->tcpi_rcv_rtt  = hcrx->ccid3hcrx_rtt;
 }
 
 static void ccid3_hc_tx_get_info(struct sock *sk, struct tcp_info *info)
@@ -1212,7 +1225,7 @@ static struct ccid_operations ccid3 = {
         .ccid_hc_rx_getsockopt     = ccid3_hc_rx_getsockopt,
         .ccid_hc_tx_getsockopt     = ccid3_hc_tx_getsockopt,
 };
- 
+
 #ifdef CONFIG_IP_DCCP_CCID3_DEBUG
 module_param(ccid3_debug, int, 0444);
 MODULE_PARM_DESC(ccid3_debug, "Enable debug messages");
@@ -1235,7 +1248,7 @@ static __init int ccid3_module_init(void)
                 goto out_free_tx;
 
         rc = ccid_register(&ccid3);
-        if (rc != 0) 
+        if (rc != 0)
                 goto out_free_loss_interval_history;
 out:
         return rc;
diff --git a/net/dccp/ccids/ccid3.h b/net/dccp/ccids/ccid3.h
index 3e3a9cc69b10..15776a88c090 100644
--- a/net/dccp/ccids/ccid3.h
+++ b/net/dccp/ccids/ccid3.h
@@ -77,7 +77,7 @@ struct ccid3_options_received {
 
 /* TFRC sender states */
 enum ccid3_hc_tx_states {
-        TFRC_SSTATE_NO_SENT = 1,
+        TFRC_SSTATE_NO_SENT = 1,
         TFRC_SSTATE_NO_FBACK,
         TFRC_SSTATE_FBACK,
         TFRC_SSTATE_TERM,
@@ -96,7 +96,7 @@ enum ccid3_hc_tx_states {
  * @ccid3hctx_state - Sender state, one of %ccid3_hc_tx_states
  * @ccid3hctx_last_win_count - Last window counter sent
  * @ccid3hctx_t_last_win_count - Timestamp of earliest packet
- *                               with last_win_count value sent
+ *                               with last_win_count value sent
  * @ccid3hctx_no_feedback_timer - Handle to no feedback timer
  * @ccid3hctx_idle - Flag indicating that sender is idling
  * @ccid3hctx_t_ld - Time last doubled during slow start
@@ -115,7 +115,7 @@ struct ccid3_hc_tx_sock {
 #define ccid3hctx_t_rto                 ccid3hctx_tfrc.tfrctx_rto
 #define ccid3hctx_t_ipi                 ccid3hctx_tfrc.tfrctx_ipi
         u16                             ccid3hctx_s;
-        enum ccid3_hc_tx_states         ccid3hctx_state:8;
+        enum ccid3_hc_tx_states         ccid3hctx_state:8;
         u8                              ccid3hctx_last_win_count;
         u8                              ccid3hctx_idle;
         struct timeval                  ccid3hctx_t_last_win_count;
@@ -129,7 +129,7 @@ struct ccid3_hc_tx_sock {
 
 /* TFRC receiver states */
 enum ccid3_hc_rx_states {
-        TFRC_RSTATE_NO_DATA = 1,
+        TFRC_RSTATE_NO_DATA = 1,
         TFRC_RSTATE_DATA,
         TFRC_RSTATE_TERM    = 127,
 };
@@ -157,18 +157,18 @@ struct ccid3_hc_rx_sock {
 #define ccid3hcrx_x_recv                ccid3hcrx_tfrc.tfrcrx_x_recv
 #define ccid3hcrx_rtt                   ccid3hcrx_tfrc.tfrcrx_rtt
 #define ccid3hcrx_p                     ccid3hcrx_tfrc.tfrcrx_p
-        u64                             ccid3hcrx_seqno_nonloss:48,
+        u64                             ccid3hcrx_seqno_nonloss:48,
                                         ccid3hcrx_ccval_nonloss:4,
                                         ccid3hcrx_ccval_last_counter:4;
         enum ccid3_hc_rx_states         ccid3hcrx_state:8;
-        u32                             ccid3hcrx_bytes_recv;
-        struct timeval                  ccid3hcrx_tstamp_last_feedback;
-        struct timeval                  ccid3hcrx_tstamp_last_ack;
+        u32                             ccid3hcrx_bytes_recv;
+        struct timeval                  ccid3hcrx_tstamp_last_feedback;
+        struct timeval                  ccid3hcrx_tstamp_last_ack;
         struct list_head                ccid3hcrx_hist;
         struct list_head                ccid3hcrx_li_hist;
-        u16                             ccid3hcrx_s;
-        u32                             ccid3hcrx_pinv;
-        u32                             ccid3hcrx_elapsed_time;
+        u16                             ccid3hcrx_s;
+        u32                             ccid3hcrx_pinv;
+        u32                             ccid3hcrx_elapsed_time;
 };
 
 static inline struct ccid3_hc_tx_sock *ccid3_hc_tx_sk(const struct sock *sk)
diff --git a/net/dccp/feat.c b/net/dccp/feat.c
index 4dc487f27a1f..95b6927ec653 100644
--- a/net/dccp/feat.c
+++ b/net/dccp/feat.c
@@ -329,7 +329,7 @@ static void dccp_feat_empty_confirm(struct dccp_minisock *dmsk,
         switch (type) {
         case DCCPO_CHANGE_L: opt->dccpop_type = DCCPO_CONFIRM_R; break;
         case DCCPO_CHANGE_R: opt->dccpop_type = DCCPO_CONFIRM_L; break;
-        default:             DCCP_WARN("invalid type %d\n", type); return;
+        default:             DCCP_WARN("invalid type %d\n", type); return;
 
         }
         opt->dccpop_feat = feature;
@@ -427,7 +427,7 @@ int dccp_feat_confirm_recv(struct sock *sk, u8 type, u8 feature,
         switch (type) {
         case DCCPO_CONFIRM_L: t = DCCPO_CHANGE_R; break;
         case DCCPO_CONFIRM_R: t = DCCPO_CHANGE_L; break;
-        default:              DCCP_WARN("invalid type %d\n", type);
+        default:              DCCP_WARN("invalid type %d\n", type);
                               return 1;
 
         }
@@ -610,7 +610,7 @@ const char *dccp_feat_typename(const u8 type)
         case DCCPO_CHANGE_R:  return("ChangeR");
         case DCCPO_CONFIRM_R: return("ConfirmR");
         /* the following case must not appear in feature negotation  */
-        default:              dccp_pr_debug("unknown type %d [BUG!]\n", type);
+        default:              dccp_pr_debug("unknown type %d [BUG!]\n", type);
         }
         return NULL;
 }
diff --git a/net/dccp/input.c b/net/dccp/input.c
index 4a3279cd684c..565bc80557ce 100644
--- a/net/dccp/input.c
+++ b/net/dccp/input.c
@@ -1,6 +1,6 @@
 /*
  *  net/dccp/input.c
- * 
+ *
  *  An implementation of the DCCP protocol
  *  Arnaldo Carvalho de Melo <acme@conectiva.com.br>
  *
@@ -82,7 +82,7 @@ static int dccp_check_seqno(struct sock *sk, struct sk_buff *skb)
          *        Otherwise,
          *           Drop packet and return
          */
-        if (dh->dccph_type == DCCP_PKT_SYNC || 
+        if (dh->dccph_type == DCCP_PKT_SYNC ||
             dh->dccph_type == DCCP_PKT_SYNCACK) {
                 if (between48(DCCP_SKB_CB(skb)->dccpd_ack_seq,
                               dp->dccps_awl, dp->dccps_awh) &&
@@ -185,8 +185,8 @@ static int __dccp_rcv_established(struct sock *sk, struct sk_buff *skb,
                 dccp_rcv_close(sk, skb);
                 return 0;
         case DCCP_PKT_REQUEST:
-                /* Step 7 
-                 *   or (S.is_server and P.type == Response)
+                /* Step 7
+                 *   or (S.is_server and P.type == Response)
                  *   or (S.is_client and P.type == Request)
                  *   or (S.state >= OPEN and P.type == Request
                  *      and P.seqno >= S.OSR)
@@ -274,7 +274,7 @@ static int dccp_rcv_request_sent_state_process(struct sock *sk,
                                                const struct dccp_hdr *dh,
                                                const unsigned len)
 {
-        /* 
+        /*
          *  Step 4: Prepare sequence numbers in REQUEST
          *     If S.state == REQUEST,
          *        If (P.type == Response or P.type == Reset)
@@ -342,7 +342,7 @@ static int dccp_rcv_request_sent_state_process(struct sock *sk,
                  *            from the Response * /
                  *        S.state := PARTOPEN
                  *        Set PARTOPEN timer
-                 *        Continue with S.state == PARTOPEN
+                 *        Continue with S.state == PARTOPEN
                  *        / * Step 12 will send the Ack completing the
                  *            three-way handshake * /
                  */
@@ -373,7 +373,7 @@ static int dccp_rcv_request_sent_state_process(struct sock *sk,
                          */
                         __kfree_skb(skb);
                         return 0;
-                } 
+                }
                 dccp_send_ack(sk);
                 return -1;
         }
@@ -381,7 +381,7 @@ static int dccp_rcv_request_sent_state_process(struct sock *sk,
 out_invalid_packet:
         /* dccp_v4_do_rcv will send a reset */
         DCCP_SKB_CB(skb)->dccpd_reset_code = DCCP_RESET_CODE_PACKET_ERROR;
-        return 1; 
+        return 1;
 }
 
 static int dccp_rcv_respond_partopen_state_process(struct sock *sk,
@@ -488,11 +488,11 @@ int dccp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
                 if (dcb->dccpd_ack_seq != DCCP_PKT_WITHOUT_ACK_SEQ)
                         dccp_event_ack_recv(sk, skb);
 
-                if (dccp_msk(sk)->dccpms_send_ack_vector &&
+                if (dccp_msk(sk)->dccpms_send_ack_vector &&
                     dccp_ackvec_add(dp->dccps_hc_rx_ackvec, sk,
-                                    DCCP_SKB_CB(skb)->dccpd_seq,
-                                    DCCP_ACKVEC_STATE_RECEIVED))
-                        goto discard;
+                                    DCCP_SKB_CB(skb)->dccpd_seq,
+                                    DCCP_ACKVEC_STATE_RECEIVED))
+                        goto discard;
 
                 /* XXX see the comments in dccp_rcv_established about this */
                 if (dccp_sk(sk)->dccps_role == DCCP_ROLE_SERVER)
@@ -580,7 +580,7 @@ int dccp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
                 }
         }
 
-        if (!queued) { 
+        if (!queued) {
 discard:
                 __kfree_skb(skb);
         }
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index ff81679c9f17..90c74b4adb73 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -157,7 +157,7 @@ static inline void dccp_do_pmtu_discovery(struct sock *sk,
         /* We don't check in the destentry if pmtu discovery is forbidden
          * on this route. We just assume that no packet_to_big packets
          * are send back when pmtu discovery is not active.
-         * There is a small race when the user changes this flag in the
+         * There is a small race when the user changes this flag in the
          * route, but I think that's acceptable.
          */
         if ((dst = __sk_dst_check(sk, 0)) == NULL)
@@ -467,7 +467,7 @@ static struct dst_entry* dccp_v4_route_skb(struct sock *sk,
                             .uli_u = { .ports =
                                        { .sport = dccp_hdr(skb)->dccph_dport,
                                          .dport = dccp_hdr(skb)->dccph_sport }
-                                     }
+                                     }
                           };
 
         security_skb_classify_flow(skb, &fl);
@@ -595,7 +595,7 @@ int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
         struct inet_request_sock *ireq;
         struct request_sock *req;
         struct dccp_request_sock *dreq;
-        const __be32 service = dccp_hdr_request(skb)->dccph_req_service;
+        const __be32 service = dccp_hdr_request(skb)->dccph_req_service;
         struct dccp_skb_cb *dcb = DCCP_SKB_CB(skb);
         __u8 reset_code = DCCP_RESET_CODE_TOO_BUSY;
 
@@ -609,7 +609,7 @@ int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
         if (dccp_bad_service_code(sk, service)) {
                 reset_code = DCCP_RESET_CODE_BAD_SERVICE_CODE;
                 goto drop;
-        }
+        }
         /*
          * TW buckets are converted to open requests without
          * limitations, they conserve resources and peer is
@@ -644,7 +644,7 @@ int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
         ireq->rmt_addr = skb->nh.iph->saddr;
         ireq->opt       = NULL;
 
-        /* 
+        /*
          * Step 3: Process LISTEN state
          *
          * Set S.ISR, S.GSR, S.SWL, S.SWH from packet or Init Cookie
@@ -846,15 +846,15 @@ static int dccp_v4_rcv(struct sk_buff *skb)
         }
 
         /* Step 2:
-         *      Look up flow ID in table and get corresponding socket */
+         *      Look up flow ID in table and get corresponding socket */
         sk = __inet_lookup(&dccp_hashinfo,
                            skb->nh.iph->saddr, dh->dccph_sport,
                            skb->nh.iph->daddr, dh->dccph_dport,
                            inet_iif(skb));
 
-        /* 
+        /*
          * Step 2:
-         *      If no socket ...
+         *      If no socket ...
          */
         if (sk == NULL) {
                 dccp_pr_debug("failed to look up flow ID in table and "
@@ -862,9 +862,9 @@ static int dccp_v4_rcv(struct sk_buff *skb)
                 goto no_dccp_socket;
         }
 
-        /* 
+        /*
          * Step 2:
-         *      ... or S.state == TIMEWAIT,
+         *      ... or S.state == TIMEWAIT,
          *              Generate Reset(No Connection) unless P.type == Reset
          *              Drop packet and return
          */
@@ -876,8 +876,8 @@ static int dccp_v4_rcv(struct sk_buff *skb)
 
         /*
          * RFC 4340, sec. 9.2.1: Minimum Checksum Coverage
-         *      o if MinCsCov = 0, only packets with CsCov = 0 are accepted
-         *      o if MinCsCov > 0, also accept packets with CsCov >= MinCsCov
+         *      o if MinCsCov = 0, only packets with CsCov = 0 are accepted
+         *      o if MinCsCov > 0, also accept packets with CsCov >= MinCsCov
          */
         min_cov = dccp_sk(sk)->dccps_pcrlen;
         if (dh->dccph_cscov && (min_cov == 0 || dh->dccph_cscov < min_cov))  {
@@ -900,7 +900,7 @@ no_dccp_socket:
                 goto discard_it;
         /*
          * Step 2:
-         *      If no socket ...
+         *      If no socket ...
          *              Generate Reset(No Connection) unless P.type == Reset
          *              Drop packet and return
          */
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index c7aaa2574f52..6b91a9dd0411 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -77,7 +77,7 @@ static inline void dccp_v6_send_check(struct sock *sk, int unused_value,
 }
 
 static inline __u32 secure_dccpv6_sequence_number(__be32 *saddr, __be32 *daddr,
-                                                  __be16 sport, __be16 dport   )
+                                                  __be16 sport, __be16 dport   )
 {
         return secure_tcpv6_sequence_number(saddr, daddr, sport, dport);
 }
@@ -329,7 +329,7 @@ static void dccp_v6_ctl_send_reset(struct sock *sk, struct sk_buff *rxskb)
         skb = alloc_skb(dccp_v6_ctl_socket->sk->sk_prot->max_header,
                         GFP_ATOMIC);
         if (skb == NULL)
-                return;
+                return;
 
         skb_reserve(skb, dccp_v6_ctl_socket->sk->sk_prot->max_header);
 
@@ -353,7 +353,7 @@ static void dccp_v6_ctl_send_reset(struct sock *sk, struct sk_buff *rxskb)
 
         dccp_csum_outgoing(skb);
         dh->dccph_checksum = dccp_v6_csum_finish(skb, &rxskb->nh.ipv6h->saddr,
-                                                      &rxskb->nh.ipv6h->daddr);
+                                                      &rxskb->nh.ipv6h->daddr);
 
         memset(&fl, 0, sizeof(fl));
         ipv6_addr_copy(&fl.fl6_dst, &rxskb->nh.ipv6h->saddr);
@@ -424,7 +424,7 @@ static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
         struct dccp_request_sock *dreq;
         struct inet6_request_sock *ireq6;
         struct ipv6_pinfo *np = inet6_sk(sk);
-        const __be32 service = dccp_hdr_request(skb)->dccph_req_service;
+        const __be32 service = dccp_hdr_request(skb)->dccph_req_service;
         struct dccp_skb_cb *dcb = DCCP_SKB_CB(skb);
         __u8 reset_code = DCCP_RESET_CODE_TOO_BUSY;
 
@@ -437,7 +437,7 @@ static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
         if (dccp_bad_service_code(sk, service)) {
                 reset_code = DCCP_RESET_CODE_BAD_SERVICE_CODE;
                 goto drop;
-        }
+        }
         /*
          * There are no SYN attacks on IPv6, yet...
          */
@@ -787,7 +787,7 @@ static int dccp_v6_do_rcv(struct sock *sk, struct sk_buff *skb)
                  * otherwise we just shortcircuit this and continue with
                  * the new socket..
                  */
-                if (nsk != sk) {
+                if (nsk != sk) {
                         if (dccp_child_process(sk, nsk, skb))
                                 goto reset;
                         if (opt_skb != NULL)
@@ -843,14 +843,14 @@ static int dccp_v6_rcv(struct sk_buff **pskb)
                 DCCP_SKB_CB(skb)->dccpd_ack_seq = dccp_hdr_ack_seq(skb);
 
         /* Step 2:
-         *      Look up flow ID in table and get corresponding socket */
+         *      Look up flow ID in table and get corresponding socket */
         sk = __inet6_lookup(&dccp_hashinfo, &skb->nh.ipv6h->saddr,
                             dh->dccph_sport,
                             &skb->nh.ipv6h->daddr, ntohs(dh->dccph_dport),
                             inet6_iif(skb));
         /*
          * Step 2:
-         *      If no socket ...
+         *      If no socket ...
          */
         if (sk == NULL) {
                 dccp_pr_debug("failed to look up flow ID in table and "
@@ -860,7 +860,7 @@ static int dccp_v6_rcv(struct sk_buff **pskb)
 
         /*
          * Step 2:
-         *      ... or S.state == TIMEWAIT,
+         *      ... or S.state == TIMEWAIT,
          *              Generate Reset(No Connection) unless P.type == Reset
          *              Drop packet and return
          */
@@ -872,8 +872,8 @@ static int dccp_v6_rcv(struct sk_buff **pskb)
 
         /*
          * RFC 4340, sec. 9.2.1: Minimum Checksum Coverage
-         *      o if MinCsCov = 0, only packets with CsCov = 0 are accepted
-         *      o if MinCsCov > 0, also accept packets with CsCov >= MinCsCov
+         *      o if MinCsCov = 0, only packets with CsCov = 0 are accepted
+         *      o if MinCsCov > 0, also accept packets with CsCov >= MinCsCov
          */
         min_cov = dccp_sk(sk)->dccps_pcrlen;
         if (dh->dccph_cscov  &&  (min_cov == 0 || dh->dccph_cscov < min_cov))  {
@@ -893,7 +893,7 @@ no_dccp_socket:
                 goto discard_it;
         /*
          * Step 2:
-         *      If no socket ...
+         *      If no socket ...
          *              Generate Reset(No Connection) unless P.type == Reset
          *              Drop packet and return
          */
diff --git a/net/dccp/minisocks.c b/net/dccp/minisocks.c
index 4c9e26775f72..6656bb497c7b 100644
--- a/net/dccp/minisocks.c
+++ b/net/dccp/minisocks.c
@@ -182,7 +182,7 @@ out_free:
 
 EXPORT_SYMBOL_GPL(dccp_create_openreq_child);
 
-/* 
+/*
  * Process an incoming packet for RESPOND sockets represented
  * as an request_sock.
  */
diff --git a/net/dccp/output.c b/net/dccp/output.c
index b4df12b24161..824569659083 100644
--- a/net/dccp/output.c
+++ b/net/dccp/output.c
@@ -1,6 +1,6 @@
 /*
  *  net/dccp/output.c
- * 
+ *
  *  An implementation of the DCCP protocol
  *  Arnaldo Carvalho de Melo <acme@conectiva.com.br>
  *
@@ -338,7 +338,6 @@ EXPORT_SYMBOL_GPL(dccp_make_response);
 
 static struct sk_buff *dccp_make_reset(struct sock *sk, struct dst_entry *dst,
                                        const enum dccp_reset_codes code)
-                                   
 {
         struct dccp_hdr *dh;
         struct dccp_sock *dp = dccp_sk(sk);
@@ -419,14 +418,14 @@ static inline void dccp_connect_init(struct sock *sk)
         
         dccp_sync_mss(sk, dst_mtu(dst));
 
-        /*
+        /*
          * SWL and AWL are initially adjusted so that they are not less than
          * the initial Sequence Numbers received and sent, respectively:
          *      SWL := max(GSR + 1 - floor(W/4), ISR),
          *      AWL := max(GSS - W' + 1, ISS).
          * These adjustments MUST be applied only at the beginning of the
          * connection.
-         */
+         */
         dccp_update_gss(sk, dp->dccps_iss);
         dccp_set_seqno(&dp->dccps_awl, max48(dp->dccps_awl, dp->dccps_iss));
 
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index 5ec47d9ee447..63b3fa20e14b 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -196,7 +196,7 @@ int dccp_init_sock(struct sock *sk, const __u8 ctl_sock_initialized)
                                                       sk, GFP_KERNEL);
                 dp->dccps_hc_tx_ccid = ccid_hc_tx_new(dmsk->dccpms_tx_ccid,
                                                       sk, GFP_KERNEL);
-                if (unlikely(dp->dccps_hc_rx_ccid == NULL ||
+                if (unlikely(dp->dccps_hc_rx_ccid == NULL ||
                              dp->dccps_hc_tx_ccid == NULL)) {
                         ccid_hc_rx_delete(dp->dccps_hc_rx_ccid, sk);
                         ccid_hc_tx_delete(dp->dccps_hc_tx_ccid, sk);
@@ -390,7 +390,7 @@ static int dccp_setsockopt_service(struct sock *sk, const __be32 service,
         struct dccp_sock *dp = dccp_sk(sk);
         struct dccp_service_list *sl = NULL;
 
-        if (service == DCCP_SERVICE_INVALID_VALUE || 
+        if (service == DCCP_SERVICE_INVALID_VALUE ||
             optlen > DCCP_SERVICE_LIST_MAX_LEN * sizeof(u32))
                 return -EINVAL;
 
@@ -830,7 +830,7 @@ EXPORT_SYMBOL_GPL(inet_dccp_listen);
 static const unsigned char dccp_new_state[] = {
         /* current state:   new state:      action:     */
         [0]               = DCCP_CLOSED,
-        [DCCP_OPEN]       = DCCP_CLOSING | DCCP_ACTION_FIN,
+        [DCCP_OPEN]       = DCCP_CLOSING | DCCP_ACTION_FIN,
         [DCCP_REQUESTING] = DCCP_CLOSED,
         [DCCP_PARTOPEN]   = DCCP_CLOSING | DCCP_ACTION_FIN,
         [DCCP_LISTEN]     = DCCP_CLOSED,
diff --git a/net/dccp/timer.c b/net/dccp/timer.c
index e8f519e7f481..e5348f369c60 100644
--- a/net/dccp/timer.c
+++ b/net/dccp/timer.c
@@ -1,6 +1,6 @@
 /*
  *  net/dccp/timer.c
- * 
+ *
  *  An implementation of the DCCP protocol
  *  Arnaldo Carvalho de Melo <acme@conectiva.com.br>
  *
@@ -102,13 +102,13 @@ static void dccp_retransmit_timer(struct sock *sk)
          * sk->sk_send_head has to have one skb with
          * DCCP_SKB_CB(skb)->dccpd_type set to one of the retransmittable DCCP
          * packet types. The only packets eligible for retransmission are:
-         *      -- Requests in client-REQUEST  state (sec. 8.1.1)
-         *      -- Acks     in client-PARTOPEN state (sec. 8.1.5)
-         *      -- CloseReq in server-CLOSEREQ state (sec. 8.3)
-         *      -- Close    in   node-CLOSING  state (sec. 8.3)                */
+         *      -- Requests in client-REQUEST  state (sec. 8.1.1)
+         *      -- Acks     in client-PARTOPEN state (sec. 8.1.5)
+         *      -- CloseReq in server-CLOSEREQ state (sec. 8.3)
+         *      -- Close    in   node-CLOSING  state (sec. 8.3)                */
         BUG_TRAP(sk->sk_send_head != NULL);
 
-        /* 
+        /*
          * More than than 4MSL (8 minutes) has passed, a RESET(aborted) was
          * sent, no need to retransmit, this sock is dead.
          */
@@ -200,7 +200,7 @@ static void dccp_keepalive_timer(unsigned long data)
         /* Only process if socket is not in use. */
         bh_lock_sock(sk);
         if (sock_owned_by_user(sk)) {
-                /* Try again later. */ 
+                /* Try again later. */
                 inet_csk_reset_keepalive_timer(sk, HZ / 20);
                 goto out;
         }