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authorNeal Cardwell <ncardwell@google.com>2025-06-14 20:14:35 -0400
committerJakub Kicinski <kuba@kernel.org>2025-06-17 16:19:04 -0700
commitdb16319efcc717a31dcb9c8f038acb6e4111c12e (patch)
tree14cc0ade0798fa4be0354a733325bb8e911b010d
parenttcp: remove RFC3517/RFC6675 hint state: lost_skb_hint, lost_cnt_hint (diff)
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tcp: remove RFC3517/RFC6675 tcp_clear_retrans_hints_partial()
Now that we have removed the RFC3517/RFC6675 hints, tcp_clear_retrans_hints_partial() is empty, and can be removed. 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/20250615001435.2390793-4-ncardwell.sw@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-rw-r--r--include/net/tcp.h5
-rw-r--r--net/ipv4/tcp_input.c2
-rw-r--r--net/ipv4/tcp_output.c1
3 files changed, 0 insertions, 8 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h
index f57d12183794..9f852f5f8b95 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1811,13 +1811,8 @@ static inline void tcp_mib_init(struct net *net)
}
/* from STCP */
-static inline void tcp_clear_retrans_hints_partial(struct tcp_sock *tp)
-{
-}
-
static inline void tcp_clear_all_retrans_hints(struct tcp_sock *tp)
{
- tcp_clear_retrans_hints_partial(tp);
tp->retransmit_skb_hint = NULL;
}
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index e8e130e946f1..05b9571c9c92 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2769,8 +2769,6 @@ void tcp_simple_retransmit(struct sock *sk)
tcp_mark_skb_lost(sk, skb);
}
- tcp_clear_retrans_hints_partial(tp);
-
if (!tp->lost_out)
return;
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index b0ffefe604b4..eb50746dc482 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -3247,7 +3247,6 @@ static bool tcp_collapse_retrans(struct sock *sk, struct sk_buff *skb)
TCP_SKB_CB(skb)->eor = TCP_SKB_CB(next_skb)->eor;
/* changed transmit queue under us so clear hints */
- tcp_clear_retrans_hints_partial(tp);
if (next_skb == tp->retransmit_skb_hint)
tp->retransmit_skb_hint = skb;