From: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
To: dccp@vger.kernel.org
Subject: [PATCH 10/29] Shorten statement for updating p
Date: Thu, 12 Apr 2007 21:15:24 +0000 [thread overview]
Message-ID: <20070412211524.GK21292@ghostprotocols.net> (raw)
This shortens the statement for updating the loss event
rate p when a feedback packet is received.
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
---
net/dccp/ccids/ccid3.c | 7 ++-----
1 files changed, 2 insertions(+), 5 deletions(-)
diff --git a/net/dccp/ccids/ccid3.c b/net/dccp/ccids/ccid3.c
index 22ba3f9..c3711e1 100644
--- a/net/dccp/ccids/ccid3.c
+++ b/net/dccp/ccids/ccid3.c
@@ -466,12 +466,9 @@ static void ccid3_hc_tx_packet_recv(struct sock *sk, struct sk_buff *skb)
hctx->ccid3hctx_x_recv = opt_recv->ccid3or_receive_rate;
hctx->ccid3hctx_x_recv <<= 6;
- /* Update loss event rate */
+ /* Update loss event rate (scaled by 1e6), cf. RFC 4342, 8.5 */
pinv = opt_recv->ccid3or_loss_event_rate;
- 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 = (pinv = ~0U || pinv = 0) ? 0 : scaled_div(1, pinv);
/*
* Calculate new round trip sample as per [RFC 3448, 4.3] by
--
1.5.0.6
reply other threads:[~2007-04-12 21:15 UTC|newest]
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