l2tp: use skb_queue_purge in l2tp_ip_destroy_sock
Recent commited8ebee6de
("l2tp: have l2tp_ip_destroy_sock use ip_flush_pending_frames") was incorrect in that l2tp_ip does not use socket cork and ip_flush_pending_frames is for sockets that do. Use __skb_queue_purge instead and remove the unnecessary lock. Also unexport ip_flush_pending_frames since it was originally exported in commit4ff8863419
("ipv4: export ip_flush_pending_frames") for l2tp and is not used by other modules. Suggested-by: xiyou.wangcong@gmail.com Signed-off-by: James Chapman <jchapman@katalix.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Link: https://patch.msgid.link/20240819143333.3204957-1-jchapman@katalix.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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@ -1534,7 +1534,6 @@ void ip_flush_pending_frames(struct sock *sk)
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{
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{
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__ip_flush_pending_frames(sk, &sk->sk_write_queue, &inet_sk(sk)->cork.base);
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__ip_flush_pending_frames(sk, &sk->sk_write_queue, &inet_sk(sk)->cork.base);
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}
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}
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EXPORT_SYMBOL_GPL(ip_flush_pending_frames);
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struct sk_buff *ip_make_skb(struct sock *sk,
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struct sk_buff *ip_make_skb(struct sock *sk,
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struct flowi4 *fl4,
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struct flowi4 *fl4,
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@ -258,9 +258,7 @@ static void l2tp_ip_destroy_sock(struct sock *sk)
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{
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{
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struct l2tp_tunnel *tunnel;
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struct l2tp_tunnel *tunnel;
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lock_sock(sk);
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__skb_queue_purge(&sk->sk_write_queue);
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ip_flush_pending_frames(sk);
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release_sock(sk);
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tunnel = l2tp_sk_to_tunnel(sk);
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tunnel = l2tp_sk_to_tunnel(sk);
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if (tunnel) {
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if (tunnel) {
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