diff options
| -rw-r--r-- | net/dccp/ccids/ccid3.c | 22 | ||||
| -rw-r--r-- | net/dccp/ccids/ccid3.h | 2 |
2 files changed, 6 insertions, 18 deletions
diff --git a/net/dccp/ccids/ccid3.c b/net/dccp/ccids/ccid3.c index 721efc7ed319..cf8c07b2704f 100644 --- a/net/dccp/ccids/ccid3.c +++ b/net/dccp/ccids/ccid3.c @@ -137,8 +137,7 @@ static void ccid3_hc_tx_update_x(struct sock *sk, struct timeval *now) struct ccid3_hc_tx_sock *hctx = ccid3_hc_tx_sk(sk); const __u32 old_x = hctx->ccid3hctx_x; - /* To avoid large error in calcX */ - if (hctx->ccid3hctx_p >= TFRC_SMALLEST_P) { + if (hctx->ccid3hctx_p > 0) { hctx->ccid3hctx_x_calc = tfrc_calc_x(hctx->ccid3hctx_s, hctx->ccid3hctx_rtt, hctx->ccid3hctx_p); @@ -226,16 +225,14 @@ static void ccid3_hc_tx_no_feedback_timer(unsigned long data) ccid3_tx_state_name(hctx->ccid3hctx_state)); /* Halve sending rate */ - /* If (X_calc > 2 * X_recv) + /* If (p == 0 || X_calc > 2 * X_recv) * X_recv = max(X_recv / 2, s / (2 * t_mbi)); * Else * X_recv = X_calc / 4; */ - BUG_ON(hctx->ccid3hctx_p >= TFRC_SMALLEST_P && - hctx->ccid3hctx_x_calc == 0); + BUG_ON(hctx->ccid3hctx_p && !hctx->ccid3hctx_x_calc); - /* check also if p is zero -> x_calc is infinity? */ - if (hctx->ccid3hctx_p < TFRC_SMALLEST_P || + if (hctx->ccid3hctx_p == 0 || hctx->ccid3hctx_x_calc > 2 * hctx->ccid3hctx_x_recv) hctx->ccid3hctx_x_recv = max_t(u32, hctx->ccid3hctx_x_recv / 2, hctx->ccid3hctx_s / (2 * TFRC_T_MBI)); @@ -449,15 +446,8 @@ static void ccid3_hc_tx_packet_recv(struct sock *sk, struct sk_buff *skb) pinv = opt_recv->ccid3or_loss_event_rate; if (pinv == ~0U || pinv == 0) hctx->ccid3hctx_p = 0; - else { - hctx->ccid3hctx_p = 1000000 / pinv; - - if (hctx->ccid3hctx_p < TFRC_SMALLEST_P) { - hctx->ccid3hctx_p = TFRC_SMALLEST_P; - ccid3_pr_debug("%s, sk=%p, Smallest p used!\n", - dccp_role(sk), sk); - } - } + else + hctx->ccid3hctx_p = 1000000 / pinv; dccp_timestamp(sk, &now); diff --git a/net/dccp/ccids/ccid3.h b/net/dccp/ccids/ccid3.h index 27cb20ae1da8..07596d704ef9 100644 --- a/net/dccp/ccids/ccid3.h +++ b/net/dccp/ccids/ccid3.h @@ -51,8 +51,6 @@ /* Parameter t_mbi from [RFC 3448, 4.3]: backoff interval in seconds */ #define TFRC_T_MBI 64 -#define TFRC_SMALLEST_P 40 - enum ccid3_options { TFRC_OPT_LOSS_EVENT_RATE = 192, TFRC_OPT_LOSS_INTERVALS = 193, |