From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=91.218.175.215 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793343618; b=43/Mg6DTOu+pM9kX7c/ObDEUWAgPArPNDt8SYrob671J86xZnishUKnBof768VfvzjCo 7OIT8QbM06LppwDSopcXOwa+/Nog1QwQqMLiVDx7wC45A/xyask5vWdrHY5b89mPRqzdw nZCuxABYX2+w4biYFbXx2Ezb8mveTtNHsjvmbd7DxGV48Ti3N/Zm2sORz/ZQ1uhbSX3u3 Auj52qX2J62q1iBICleVNjMqQGYcDSBKyo0ZIfE3IJFf8qvwdIJYo59fadsfbU3sp791/ 5bmiircqsyHsT8gJT+IVCAE0YJ4kBVyAdT419vZ69FY2DBHGxuerCCGlxufdURQBlew== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793343618; h=DMARC-Filter:X-Envelope-To:DKIM-Signature:X-Envelope-To:Received: X-Mizu-Trace-ID:X-Migadu-Flow:From:To:Cc:Subject:Date:Message-ID: X-Mailer:MIME-Version:Content-Transfer-Encoding; bh=dKgY6h6Q5Ts2DLxnhruLUBnCNbfZQqx2qrxaVmHpCJ8=; b=XWo9COZC75pDVk09XMtWneKxntf4GWeapWTXfkZPevJtQQWLXXAcRpg5qddVjvarGD+n 0/Rix+iWtw3XX4cdoY7Q2ktcpAFVCgHNcy8pJXoirSrnarZvWxP1+p/0GLhjqHVSJV71a CJP8RdsPmLOYaUDzRnI0gWZaE8XoloZB3ibiJyuSIT74KYG/Hh/7nKGxzQ6PsDgugEt+w O8cslch7DqUa+8fjCwmC2TureZZrwUUwuG36IwoQmwOj9SDkzpr1pTagQq4p2V+DNrQQW Q5vYAsVMPmldnCYTdV3U0cTP9442ftNvjIU6kFImJazeABuGZjEopjg3ctPabIwJr5w== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass header.d=linux.dev header.i=@linux.dev header.a=rsa-sha256 header.s=key1 header.b=mErMgedX; arc=none smtp.remote-ip=91.218.175.215 Received: from mta0.migadu.com (out-215.mta0.migadu.com [91.218.175.215]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 528EB606A31C for ; Fri, 30 Oct 2026 07:00:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 528EB606A31C Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=linux.dev header.i=@linux.dev header.a=rsa-sha256 header.s=key1 header.b=mErMgedX X-Envelope-To: linux-kernel@vger.kernel.org DKIM-Signature: a=rsa-sha256; bh=iwhXvykKTuWWPyDY4VQHOy0zOduOaW4QRZBlnvbofnU=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1793343614; v=1; x=1793948414; b=mErMgedXGeUaoLshovhHilY4jQlJYsAMDZeygrx+YJLp/ttlbGSata3gM06AnHyUjUyTDVZw im90XKEAIdaB5Npq2ugP3EAa3fbTz3lb0/qFi4boNElL2jQNXqLDeKxLRz0Rv6GZ6oAPP5Iv7Os eKowIH9XV84r9MN86rEiNnDg= X-Envelope-To: linux-kernel@vger.kernel.org Received: by smtp.migadu.com with ESMTPS id a4af3f32c786b08f; Fri, 30 Oct 2026 07:00:12 +0000 X-Mizu-Trace-ID: a4af3f32c786b08f X-Migadu-Flow: FLOW_OUT From: Qingfang Deng To: James Chapman , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Qingfang Deng Subject: [PATCH net-next] l2tp: ppp: remove unused backlog callback Date: Fri, 30 Oct 2026 15:00:03 +0800 Message-ID: <20261030070003.2590-1-qingfang.deng@linux.dev> X-Mailer: git-send-email 2.43.0 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit PPPoL2TP sessions receive packets through pppol2tp_recv(), which passes packets directly to PPP or queues them on sk_receive_queue. No receive path queues packets on the session socket backlog or calls sk_receive_skb() with that socket, so pppol2tp_backlog_recv() is unused. Remove the unused callback. L2TP/IP control sockets retain their separate backlog callbacks. Selftests passed. Signed-off-by: Qingfang Deng --- net/l2tp/l2tp_ppp.c | 12 ------------ 1 file changed, 12 deletions(-) diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c index 4f311d473a64..15e02864bfd5 100644 --- a/net/l2tp/l2tp_ppp.c +++ b/net/l2tp/l2tp_ppp.c @@ -454,17 +454,6 @@ static struct proto pppol2tp_sk_proto = { .obj_size = sizeof(struct pppox_sock), }; -static int pppol2tp_backlog_recv(struct sock *sk, struct sk_buff *skb) -{ - int rc; - - rc = l2tp_udp_encap_recv(sk, skb); - if (rc) - kfree_skb(skb); - - return NET_RX_SUCCESS; -} - /* socket() handler. Initialize a new struct sock. */ static int pppol2tp_create(struct net *net, struct socket *sock, int kern) @@ -482,7 +471,6 @@ static int pppol2tp_create(struct net *net, struct socket *sock, int kern) sock->state = SS_UNCONNECTED; sock->ops = &pppol2tp_ops; - sk->sk_backlog_rcv = pppol2tp_backlog_recv; sk->sk_protocol = PX_PROTO_OL2TP; sk->sk_family = PF_PPPOX; sk->sk_state = PPPOX_NONE; -- 2.43.0