diff options
| -rw-r--r-- | net/dccp/ccids/ccid3.c | 35 |
1 files changed, 19 insertions, 16 deletions
diff --git a/net/dccp/ccids/ccid3.c b/net/dccp/ccids/ccid3.c index 15c25f62200..80f12c990c0 100644 --- a/net/dccp/ccids/ccid3.c +++ b/net/dccp/ccids/ccid3.c @@ -55,12 +55,10 @@ extern int ccid3_debug; #define TFRC_STD_PACKET_SIZE 256 #define TFRC_MAX_PACKET_SIZE 65535 -#define USEC_IN_SEC 1000000 - -#define TFRC_INITIAL_TIMEOUT (2 * USEC_IN_SEC) +#define TFRC_INITIAL_TIMEOUT (2 * USEC_PER_SEC) /* two seconds as per CCID3 spec 11 */ -#define TFRC_OPSYS_HALF_TIME_GRAN (USEC_IN_SEC / (2 * HZ)) +#define TFRC_OPSYS_HALF_TIME_GRAN (USEC_PER_SEC / (2 * HZ)) /* above is in usecs - half the scheduling granularity as per RFC3448 4.6 */ #define TFRC_WIN_COUNT_PER_RTT 4 @@ -155,20 +153,23 @@ static inline void ccid3_hc_tx_set_state(struct sock *sk, enum ccid3_hc_tx_state hctx->ccid3hctx_state = state; } -static void timeval_sub(struct timeval large, struct timeval small, struct timeval *result) { - +static void timeval_sub(struct timeval large, struct timeval small, + struct timeval *result) +{ result->tv_sec = large.tv_sec-small.tv_sec; if (large.tv_usec < small.tv_usec) { (result->tv_sec)--; - result->tv_usec = USEC_IN_SEC+large.tv_usec-small.tv_usec; + result->tv_usec = USEC_PER_SEC + + large.tv_usec - small.tv_usec; } else result->tv_usec = large.tv_usec-small.tv_usec; } -static inline void timeval_fix(struct timeval *tv) { - if (tv->tv_usec >= USEC_IN_SEC) { +static inline void timeval_fix(struct timeval *tv) +{ + if (tv->tv_usec >= USEC_PER_SEC) { tv->tv_sec++; - tv->tv_usec -= USEC_IN_SEC; + tv->tv_usec -= USEC_PER_SEC; } } @@ -1185,7 +1186,8 @@ static void ccid3_hc_tx_packet_recv(struct sock *sk, struct sk_buff *skb) r_sample); /* Update timeout interval */ - inet_csk(sk)->icsk_rto = max_t(u32, 4 * hctx->ccid3hctx_rtt, USEC_IN_SEC); + inet_csk(sk)->icsk_rto = max_t(u32, 4 * hctx->ccid3hctx_rtt, + USEC_PER_SEC); /* Update receive rate */ hctx->ccid3hctx_x_recv = x_recv; /* x_recv in bytes per second */ @@ -1210,7 +1212,7 @@ static void ccid3_hc_tx_packet_recv(struct sock *sk, struct sk_buff *skb) /* Update next send time */ if (hctx->ccid3hctx_t_ipi > (hctx->ccid3hctx_t_nom).tv_usec) { - (hctx->ccid3hctx_t_nom).tv_usec += USEC_IN_SEC; + hctx->ccid3hctx_t_nom.tv_usec += USEC_PER_SEC; (hctx->ccid3hctx_t_nom).tv_sec--; } /* FIXME - if no feedback then t_ipi can go > 1 second */ @@ -1344,7 +1346,7 @@ static int ccid3_hc_tx_init(struct sock *sk) hctx->ccid3hctx_x = hctx->ccid3hctx_s; /* set transmission rate to 1 packet per second */ hctx->ccid3hctx_rtt = 4; /* See ccid3_hc_tx_packet_sent win_count calculatation */ - inet_csk(sk)->icsk_rto = USEC_IN_SEC; + inet_csk(sk)->icsk_rto = USEC_PER_SEC; hctx->ccid3hctx_state = TFRC_SSTATE_NO_SENT; INIT_LIST_HEAD(&hctx->ccid3hctx_hist); init_timer(&hctx->ccid3hctx_no_feedback_timer); @@ -1531,7 +1533,8 @@ static void ccid3_hc_rx_send_feedback(struct sock *sk) if (delta == 0) delta = 1; /* to prevent divide by zero */ - hcrx->ccid3hcrx_x_recv = (hcrx->ccid3hcrx_bytes_recv * USEC_IN_SEC) / delta; + hcrx->ccid3hcrx_x_recv = (hcrx->ccid3hcrx_bytes_recv * + USEC_PER_SEC) / delta; } break; default: @@ -1669,7 +1672,7 @@ static u32 ccid3_hc_rx_calc_first_li(struct sock *sk) } found: timeval_sub(tstamp,tail->dccphrx_tstamp,&tmp_tv); - rtt = (tmp_tv.tv_sec * USEC_IN_SEC + tmp_tv.tv_usec) * 4 / interval; + rtt = (tmp_tv.tv_sec * USEC_PER_SEC + tmp_tv.tv_usec) * 4 / interval; ccid3_pr_debug("%s, sk=%p, approximated RTT to %uus\n", dccp_role(sk), sk, rtt); if (rtt == 0) @@ -1679,7 +1682,7 @@ found: if (delta == 0) delta = 1; - x_recv = (hcrx->ccid3hcrx_bytes_recv * USEC_IN_SEC) / delta; + x_recv = (hcrx->ccid3hcrx_bytes_recv * USEC_PER_SEC) / delta; tmp1 = (u64)x_recv * (u64)rtt; do_div(tmp1,10000000); |