Commit:     13dae426318aae073028a4b3bd493104a991e800
Parent:     e60402d0a909ca2e6e2fbdf9ed004ef0fae36d33
Author:     Ilpo Järvinen <[EMAIL PROTECTED]>
AuthorDate: Fri Aug 10 14:31:21 2007 -0700
Committer:  David S. Miller <[EMAIL PROTECTED]>
CommitDate: Wed Oct 10 16:48:00 2007 -0700

    [TCP]: Update comment about highest_sack validity
    This stale info came from the original idea, which proved to be
    unnecessarily complex, sacked_out > 0 is easy to do and that when
    it's going to be needed anyway (it _can_ be valid also when
    sacked_out == 0 but there's not going to be a guarantee about it
    for now).
    Signed-off-by: Ilpo Järvinen <[EMAIL PROTECTED]>
    Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
 include/linux/tcp.h |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index 1f12fa0..f8cf090 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -332,7 +332,8 @@ struct tcp_sock {
        struct tcp_sack_block_wire recv_sack_cache[4];
-       u32     highest_sack;   /* Start seq of globally highest revd SACK 
(valid only in slowpath) */
+       u32     highest_sack;   /* Start seq of globally highest revd SACK
+                                * (validity guaranteed only if sacked_out > 0) 
        /* from STCP, retrans queue hinting */
        struct sk_buff* lost_skb_hint;
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