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mptcp: use mptcp_get_ext helper
Use mptcp_get_ext() helper defined in protocol.h instead of open-coding it in mptcp_sendmsg_frag(). Reviewed-by: Matthieu Baerts <matttbe@kernel.org> Signed-off-by: Geliang Tang <geliang.tang@suse.com> Signed-off-by: Mat Martineau <martineau@kernel.org> Link: https://lore.kernel.org/r/20231025-send-net-next-20231025-v1-6-db8f25f798eb@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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@ -1267,7 +1267,7 @@ static int mptcp_sendmsg_frag(struct sock *sk, struct sock *ssk,
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* queue management operation, to avoid breaking the ext <->
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* SSN association set here
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*/
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mpext = skb_ext_find(skb, SKB_EXT_MPTCP);
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mpext = mptcp_get_ext(skb);
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if (!mptcp_skb_can_collapse_to(data_seq, skb, mpext)) {
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TCP_SKB_CB(skb)->eor = 1;
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goto alloc_skb;
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@ -1289,7 +1289,7 @@ static int mptcp_sendmsg_frag(struct sock *sk, struct sock *ssk,
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i = skb_shinfo(skb)->nr_frags;
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reuse_skb = false;
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mpext = skb_ext_find(skb, SKB_EXT_MPTCP);
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mpext = mptcp_get_ext(skb);
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}
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/* Zero window and all data acked? Probe. */
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