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| author | David S. Miller <davem@davemloft.net> | 2021-02-17 02:30:20 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-02-17 02:51:13 +0100 |
| commit | d489ded1a3690d7eca8633575cba3f7dac8484c7 (patch) | |
| tree | 20e739382965ac61d6314e6b0df4cb6acbbbca0e /net/mptcp/options.c | |
| parent | net: dsa: tag_rtl4_a: Support also egress tags (diff) | |
| parent | net: enetc: fix destroyed phylink dereference during unbind (diff) | |
| download | linux-d489ded1a3690d7eca8633575cba3f7dac8484c7.tar.xz linux-d489ded1a3690d7eca8633575cba3f7dac8484c7.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Diffstat (limited to 'net/mptcp/options.c')
| -rw-r--r-- | net/mptcp/options.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/net/mptcp/options.c b/net/mptcp/options.c index bb874c5d663a..b63574d6b812 100644 --- a/net/mptcp/options.c +++ b/net/mptcp/options.c @@ -508,8 +508,8 @@ static bool mptcp_established_options_dss(struct sock *sk, struct sk_buff *skb, { struct mptcp_subflow_context *subflow = mptcp_subflow_ctx(sk); struct mptcp_sock *msk = mptcp_sk(subflow->conn); + u64 snd_data_fin_enable, ack_seq; unsigned int dss_size = 0; - u64 snd_data_fin_enable; struct mptcp_ext *mpext; unsigned int ack_size; bool ret = false; @@ -541,13 +541,14 @@ static bool mptcp_established_options_dss(struct sock *sk, struct sk_buff *skb, return ret; } + ack_seq = READ_ONCE(msk->ack_seq); if (READ_ONCE(msk->use_64bit_ack)) { ack_size = TCPOLEN_MPTCP_DSS_ACK64; - opts->ext_copy.data_ack = READ_ONCE(msk->ack_seq); + opts->ext_copy.data_ack = ack_seq; opts->ext_copy.ack64 = 1; } else { ack_size = TCPOLEN_MPTCP_DSS_ACK32; - opts->ext_copy.data_ack32 = (uint32_t)READ_ONCE(msk->ack_seq); + opts->ext_copy.data_ack32 = (uint32_t)ack_seq; opts->ext_copy.ack64 = 0; } opts->ext_copy.use_ack = 1; @@ -918,8 +919,7 @@ static void ack_update_msk(struct mptcp_sock *msk, msk->wnd_end = new_wnd_end; /* this assumes mptcp_incoming_options() is invoked after tcp_ack() */ - if (after64(msk->wnd_end, READ_ONCE(msk->snd_nxt)) && - sk_stream_memory_free(ssk)) + if (after64(msk->wnd_end, READ_ONCE(msk->snd_nxt))) __mptcp_check_push(sk, ssk); if (after64(new_snd_una, old_snd_una)) { |