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authorNeal Cardwell <ncardwell@google.com>2025-06-14 20:14:34 -0400
committerJakub Kicinski <kuba@kernel.org>2025-06-17 16:19:04 -0700
commitba4618885b23372c45bb1566ed8e3f1c191ff22d (patch)
treed5564a6556f87ff65c4079eade3badc286ea4548 /include/net/tcp.h
parent1c120191dcec510cc17d587ece48a7ae875a90c5 (diff)
tcp: remove RFC3517/RFC6675 hint state: lost_skb_hint, lost_cnt_hint
Now that obsolete RFC3517/RFC6675 TCP loss detection has been removed, we can remove the somewhat complex and intrusive code to maintain its hint state: lost_skb_hint and lost_cnt_hint. This commit makes tcp_clear_retrans_hints_partial() empty. We will remove tcp_clear_retrans_hints_partial() and its call sites in the next commit. Suggested-by: Yuchung Cheng <ycheng@google.com> Signed-off-by: Neal Cardwell <ncardwell@google.com> Reviewed-by: Yuchung Cheng <ycheng@google.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Link: https://patch.msgid.link/20250615001435.2390793-3-ncardwell.sw@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/net/tcp.h')
-rw-r--r--include/net/tcp.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 5078ad868fee..f57d12183794 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1813,7 +1813,6 @@ static inline void tcp_mib_init(struct net *net)
/* from STCP */
static inline void tcp_clear_retrans_hints_partial(struct tcp_sock *tp)
{
- tp->lost_skb_hint = NULL;
}
static inline void tcp_clear_all_retrans_hints(struct tcp_sock *tp)