From patchwork Sun Jun 28 09:32:25 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geliang Tang X-Patchwork-Id: 1318506 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20161025 header.b=EdDPlzS2; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 49vln63jMxz9sDX for ; Sun, 28 Jun 2020 19:34:02 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726188AbgF1Jdw (ORCPT ); Sun, 28 Jun 2020 05:33:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42896 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725999AbgF1Jdv (ORCPT ); Sun, 28 Jun 2020 05:33:51 -0400 Received: from mail-pj1-x1044.google.com (mail-pj1-x1044.google.com [IPv6:2607:f8b0:4864:20::1044]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A4FE1C061794; Sun, 28 Jun 2020 02:33:51 -0700 (PDT) Received: by mail-pj1-x1044.google.com with SMTP id q90so5999422pjh.3; Sun, 28 Jun 2020 02:33:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=LEwMmf/h6lZz81fIQQa2n7X18h/c5NkeCjKyOlWnANI=; b=EdDPlzS2qvIUX9+SjPT5OT0T1MGU7FgmxHZQAbtDEB/YDiK12wX032s0cZohPvg0R0 u+viQpH109w2IcQ7kXVXC5oC2cwH3JhOYCBj/YKNrKZppLw8L2hHby0cKK9pr/aaYXdx aZx4QT7x3Ucszak8h16M1alJoVTTdBssMHLrcwh3NKaOsbgPD0dbamS+Bz/li+YEtTk/ JDr9JoQjZ2Z+bfeKMrGy5sQ3wjO+sDWZS28/2VJnPAx4FFsrRocYZPKkpH/9b/GARG9b DKzS4xog2TkJ5sXftYBmTjURlLvynpO+I2erDPPTqQQFsfOFSYDszl89r9vMCDEMHrU2 RDUw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=LEwMmf/h6lZz81fIQQa2n7X18h/c5NkeCjKyOlWnANI=; b=Ci6Bkajm8AxE7jtbh2doZgtSOa+tgpKSVvXBFYhjIkGRQYj79pQSPEIrqiy+MLF1d8 nqR+osbdXPQ8eF/eCZ2ZPDxXWE3JKHWuzw85SYjiggE4CWOz24elunBfua2KjqdfbUBn fgtA5R7D8/CRdiJaOkY5rZW23VgiBz8wFyIw6NEovqKeJncgdxvUZYHb3u5XP4Go/N6q droSf+yX6Dgj6I3TCP3r+vSOubqWct7RiAss5hTs981u9WvNENdm+VSC59fRimHNDZzh RYySAlky1qlUM7G86AeTm3a1NyZFm9On7hT0yLbOPu26rSMNKjbd75aZNHto3UgtorOn /g+g== X-Gm-Message-State: AOAM530dOm2IYtlgSPJMHhMBq58xUh7BStq7aSWF8BOhX7SlFR5Utvxz fqVLVG0zsh3Pykgva7lTouQ= X-Google-Smtp-Source: ABdhPJygDGz/63sV+KBU7HpjulPDckI6G5d8KlDuhFnjtfhMxwWSendOckHwlWRCg2L6mILwauUepw== X-Received: by 2002:a17:90a:21c6:: with SMTP id q64mr11765110pjc.172.1593336830705; Sun, 28 Jun 2020 02:33:50 -0700 (PDT) Received: from localhost ([43.224.245.180]) by smtp.gmail.com with ESMTPSA id 27sm15938911pjg.19.2020.06.28.02.33.49 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sun, 28 Jun 2020 02:33:50 -0700 (PDT) From: Geliang Tang To: Vlad Yasevich , Neil Horman , Marcelo Ricardo Leitner , "David S. Miller" , Jakub Kicinski Cc: Geliang Tang , linux-sctp@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next] sctp: use list_is_singular in sctp_list_single_entry Date: Sun, 28 Jun 2020 17:32:25 +0800 Message-Id: <1ae93f6e86ea0baf9ffb4068caed46d951076d12.1593336592.git.geliangtang@gmail.com> X-Mailer: git-send-email 2.17.1 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Use list_is_singular() instead of open-coding. Signed-off-by: Geliang Tang --- include/net/sctp/sctp.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h index f8bcb75bb044..e3bd198b00ae 100644 --- a/include/net/sctp/sctp.h +++ b/include/net/sctp/sctp.h @@ -412,7 +412,7 @@ static inline void sctp_skb_set_owner_r(struct sk_buff *skb, struct sock *sk) /* Tests if the list has one and only one entry. */ static inline int sctp_list_single_entry(struct list_head *head) { - return (head->next != head) && (head->next == head->prev); + return list_is_singular(head); } static inline bool sctp_chunk_pending(const struct sctp_chunk *chunk)