mirror of https://gitee.com/openkylin/linux.git
[DCCP] ccid2: coding style cleanups
No changes in the logic where made. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arnaldo Carvalho de Melo
David S. Miller
parent
45329e71ee
commit
c0c736db7e
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@ -37,10 +37,7 @@
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static int ccid2_debug;
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#if 0
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#define CCID2_DEBUG
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#endif
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#undef CCID2_DEBUG
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#ifdef CCID2_DEBUG
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#define ccid2_pr_debug(format, a...) \
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do { if (ccid2_debug) \
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@ -56,10 +53,8 @@ static const int ccid2_seq_len = 128;
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static void ccid2_hc_tx_check_sanity(const struct ccid2_hc_tx_sock *hctx)
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{
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int len = 0;
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struct ccid2_seq *seqp;
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int pipe = 0;
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seqp = hctx->ccid2hctx_seqh;
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struct ccid2_seq *seqp = hctx->ccid2hctx_seqh;
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/* there is data in the chain */
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if (seqp != hctx->ccid2hctx_seqt) {
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@ -69,9 +64,8 @@ static void ccid2_hc_tx_check_sanity(const struct ccid2_hc_tx_sock *hctx)
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pipe++;
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while (seqp != hctx->ccid2hctx_seqt) {
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struct ccid2_seq *prev;
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struct ccid2_seq *prev = seqp->ccid2s_prev;
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prev = seqp->ccid2s_prev;
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len++;
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if (!prev->ccid2s_acked)
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pipe++;
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@ -92,7 +86,7 @@ static void ccid2_hc_tx_check_sanity(const struct ccid2_hc_tx_sock *hctx)
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seqp = seqp->ccid2s_prev;
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len++;
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BUG_ON(len > ccid2_seq_len);
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} while(seqp != hctx->ccid2hctx_seqh);
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} while (seqp != hctx->ccid2hctx_seqh);
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BUG_ON(len != ccid2_seq_len);
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ccid2_pr_debug("total len=%d\n", len);
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@ -141,7 +135,7 @@ static void ccid2_change_l_ack_ratio(struct sock *sk, int val)
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* -sorbo.
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*/
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if (val != 2) {
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struct ccid2_hc_tx_sock *hctx = ccid2_hc_tx_sk(sk);
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const struct ccid2_hc_tx_sock *hctx = ccid2_hc_tx_sk(sk);
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int max = hctx->ccid2hctx_cwnd / 2;
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/* round up */
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@ -179,9 +173,6 @@ static void ccid2_hc_tx_rto_expire(unsigned long data)
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struct ccid2_hc_tx_sock *hctx = ccid2_hc_tx_sk(sk);
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long s;
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/* XXX I don't think i'm locking correctly
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* -sorbo.
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*/
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bh_lock_sock(sk);
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if (sock_owned_by_user(sk)) {
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sk_reset_timer(sk, &hctx->ccid2hctx_rtotimer,
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@ -278,36 +269,33 @@ static void ccid2_hc_tx_packet_sent(struct sock *sk, int more, int len)
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/* We had an ack loss in this window... */
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if (hctx->ccid2hctx_ackloss) {
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if (hctx->ccid2hctx_arsent >= hctx->ccid2hctx_cwnd) {
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hctx->ccid2hctx_arsent = 0;
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hctx->ccid2hctx_ackloss = 0;
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hctx->ccid2hctx_arsent = 0;
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hctx->ccid2hctx_ackloss = 0;
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}
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}
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/* No acks lost up to now... */
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else {
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} else {
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/* No acks lost up to now... */
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/* decrease ack ratio if enough packets were sent */
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if (dp->dccps_l_ack_ratio > 1) {
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/* XXX don't calculate denominator each time */
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int denom;
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int denom = dp->dccps_l_ack_ratio * dp->dccps_l_ack_ratio -
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dp->dccps_l_ack_ratio;
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denom = dp->dccps_l_ack_ratio * dp->dccps_l_ack_ratio -
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dp->dccps_l_ack_ratio;
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denom = hctx->ccid2hctx_cwnd * hctx->ccid2hctx_cwnd / denom;
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if (hctx->ccid2hctx_arsent >= denom) {
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ccid2_change_l_ack_ratio(sk, dp->dccps_l_ack_ratio - 1);
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hctx->ccid2hctx_arsent = 0;
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}
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}
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/* we can't increase ack ratio further [1] */
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else {
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} else {
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/* we can't increase ack ratio further [1] */
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hctx->ccid2hctx_arsent = 0; /* or maybe set it to cwnd*/
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}
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}
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/* setup RTO timer */
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if (!timer_pending(&hctx->ccid2hctx_rtotimer)) {
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if (!timer_pending(&hctx->ccid2hctx_rtotimer))
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ccid2_start_rto_timer(sk);
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}
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#ifdef CCID2_DEBUG
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ccid2_pr_debug("pipe=%d\n", hctx->ccid2hctx_pipe);
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ccid2_pr_debug("Sent: seq=%llu\n", seq);
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@ -320,7 +308,7 @@ static void ccid2_hc_tx_packet_sent(struct sock *sk, int more, int len)
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seqp->ccid2s_sent);
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seqp = seqp->ccid2s_next;
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}
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} while(0);
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} while (0);
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ccid2_pr_debug("=========\n");
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ccid2_hc_tx_check_sanity(hctx);
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#endif
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@ -378,7 +366,6 @@ static int ccid2_ackvector(struct sock *sk, struct sk_buff *skb, int offset,
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*vec = value;
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*veclen = len;
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return offset + (opt_ptr - options);
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break;
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}
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}
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@ -416,13 +403,11 @@ static inline void ccid2_new_ack(struct sock *sk,
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hctx->ccid2hctx_ssacks = 0;
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*maxincr = *maxincr - 1;
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}
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}
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/* increased cwnd enough for this single ack */
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else {
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} else {
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/* increased cwnd enough for this single ack */
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hctx->ccid2hctx_ssacks = 0;
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}
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}
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else {
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} else {
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hctx->ccid2hctx_ssacks = 0;
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hctx->ccid2hctx_acks++;
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@ -444,8 +429,7 @@ static inline void ccid2_new_ack(struct sock *sk,
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r, jiffies, seqp->ccid2s_seq);
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hctx->ccid2hctx_srtt = r;
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hctx->ccid2hctx_rttvar = r >> 1;
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}
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else {
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} else {
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/* RTTVAR */
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long tmp = hctx->ccid2hctx_srtt - r;
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if (tmp < 0)
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@ -528,12 +512,10 @@ static void ccid2_hc_tx_packet_recv(struct sock *sk, struct sk_buff *skb)
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if (hctx->ccid2hctx_rpdupack == -1) {
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hctx->ccid2hctx_rpdupack = 0;
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hctx->ccid2hctx_rpseq = seqno;
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}
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else {
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} else {
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/* check if packet is consecutive */
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if ((hctx->ccid2hctx_rpseq + 1) == seqno) {
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if ((hctx->ccid2hctx_rpseq + 1) == seqno)
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hctx->ccid2hctx_rpseq++;
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}
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/* it's a later packet */
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else if (after48(seqno, hctx->ccid2hctx_rpseq)) {
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hctx->ccid2hctx_rpdupack++;
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@ -541,7 +523,6 @@ static void ccid2_hc_tx_packet_recv(struct sock *sk, struct sk_buff *skb)
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/* check if we got enough dupacks */
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if (hctx->ccid2hctx_rpdupack >=
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hctx->ccid2hctx_numdupack) {
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hctx->ccid2hctx_rpdupack = -1; /* XXX lame */
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hctx->ccid2hctx_rpseq = 0;
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@ -559,7 +540,6 @@ static void ccid2_hc_tx_packet_recv(struct sock *sk, struct sk_buff *skb)
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case DCCP_PKT_ACK:
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case DCCP_PKT_DATAACK:
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break;
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default:
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return;
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}
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@ -612,11 +592,9 @@ static void ccid2_hc_tx_packet_recv(struct sock *sk, struct sk_buff *skb)
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if (state ==
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DCCP_ACKVEC_STATE_ECN_MARKED) {
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loss = 1;
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}
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else {
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} else
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ccid2_new_ack(sk, seqp,
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&maxincr);
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}
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seqp->ccid2s_acked = 1;
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ccid2_pr_debug("Got ack for %llu\n",
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@ -648,13 +626,11 @@ static void ccid2_hc_tx_packet_recv(struct sock *sk, struct sk_buff *skb)
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while (1) {
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if (seqp->ccid2s_acked) {
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done++;
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if (done == hctx->ccid2hctx_numdupack) {
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if (done == hctx->ccid2hctx_numdupack)
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break;
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}
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}
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if (seqp == hctx->ccid2hctx_seqt) {
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if (seqp == hctx->ccid2hctx_seqt)
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break;
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}
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seqp = seqp->ccid2s_prev;
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}
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@ -798,6 +774,6 @@ static __exit void ccid2_module_exit(void)
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module_exit(ccid2_module_exit);
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MODULE_AUTHOR("Andrea Bittau <a.bittau@cs.ucl.ac.uk>");
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MODULE_DESCRIPTION("DCCP TCP CCID2 CCID");
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MODULE_DESCRIPTION("DCCP TCP-Like (CCID2) CCID");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("net-dccp-ccid-2");
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