From: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Date: Sun, 13 Jul 2008 10:51:40 +0000 (+0100)
Subject: dccp ccid-3: Fix error in loss detection
X-Git-Tag: v2.6.27-rc1~969^2~161^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2013c7e35aeba39777f9b3eef8a70207b3931152;p=pandora-kernel.git

dccp ccid-3: Fix error in loss detection

The TFRC loss detection code used the wrong loss condition (RFC 4340, 7.7.1):
 * the difference between sequence numbers s1 and s2 instead of
 * the number of packets missing between s1 and s2 (one less than the distance).

Since this condition appears in many places of the code, it has been put into a
separate function, dccp_loss_free().

Further changes:
----------------
 * tidied up incorrect typing (it was using `int' for u64/s64 types);
 * optimised conditional statements for common case of non-reordered packets;
 * rewrote comments/documentation to match the changes.

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
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