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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>
This commit is contained in:
Neal Cardwell 2025-06-14 20:14:35 -04:00 committed by Jakub Kicinski
parent ba4618885b
commit db16319efc
3 changed files with 0 additions and 8 deletions
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5
include/net/tcp.h
View File

@ -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;
}

2
net/ipv4/tcp_input.c
View File

@ -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;

1
net/ipv4/tcp_output.c
View File

@ -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;