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mptcp: Remove set but not used variable 'can_ack'
Fixes gcc '-Wunused-but-set-variable' warning:
net/mptcp/options.c: In function 'mptcp_established_options_dss':
net/mptcp/options.c:338:7: warning:
variable 'can_ack' set but not used [-Wunused-but-set-variable]
commit dc093db5cc
("mptcp: drop unneeded checks")
leave behind this unused, remove it.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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c388b935d0
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1 changed files with 0 additions and 2 deletions
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@ -335,7 +335,6 @@ static bool mptcp_established_options_dss(struct sock *sk, struct sk_buff *skb,
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struct mptcp_sock *msk;
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unsigned int ack_size;
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bool ret = false;
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bool can_ack;
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u8 tcp_fin;
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if (skb) {
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@ -364,7 +363,6 @@ static bool mptcp_established_options_dss(struct sock *sk, struct sk_buff *skb,
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/* passive sockets msk will set the 'can_ack' after accept(), even
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* if the first subflow may have the already the remote key handy
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*/
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can_ack = true;
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opts->ext_copy.use_ack = 0;
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msk = mptcp_sk(subflow->conn);
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if (!READ_ONCE(msk->can_ack)) {
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