diff options
| author | Mark Brown <broonie@kernel.org> | 2024-09-12 12:38:44 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2024-09-12 12:38:44 +0100 |
| commit | f10d52087cbe85dcff2af3dc94c5b9d06e6d4b9a (patch) | |
| tree | d07ff0a3767fbb6118505de85ad657f78f512c06 /net/ipv4/tcp_input.c | |
| parent | 740c1c84bfa3d8c63bd3b01fb570e7452f51fbd8 (diff) | |
| parent | b787a33864121a565aeb0e88561bf6062a19f99c (diff) | |
spi: Merge up fixes
A patch for Qualcomm depends on some fixes.
Diffstat (limited to 'net/ipv4/tcp_input.c')
| -rw-r--r-- | net/ipv4/tcp_input.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 454362e359da..e37488d3453f 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -238,9 +238,14 @@ static void tcp_measure_rcv_mss(struct sock *sk, const struct sk_buff *skb) */ if (unlikely(len != icsk->icsk_ack.rcv_mss)) { u64 val = (u64)skb->len << TCP_RMEM_TO_WIN_SCALE; + u8 old_ratio = tcp_sk(sk)->scaling_ratio; do_div(val, skb->truesize); tcp_sk(sk)->scaling_ratio = val ? val : 1; + + if (old_ratio != tcp_sk(sk)->scaling_ratio) + WRITE_ONCE(tcp_sk(sk)->window_clamp, + tcp_win_from_space(sk, sk->sk_rcvbuf)); } icsk->icsk_ack.rcv_mss = min_t(unsigned int, len, tcp_sk(sk)->advmss); |