From patchwork Sun Jun 28 10:14:13 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geliang Tang X-Patchwork-Id: 1318509 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=NkVBj5s7; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 49vmjJ2hKbz9sQt for ; Sun, 28 Jun 2020 20:15:48 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726130AbgF1KPp (ORCPT ); Sun, 28 Jun 2020 06:15:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49330 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725921AbgF1KPo (ORCPT ); Sun, 28 Jun 2020 06:15:44 -0400 Received: from mail-pj1-x1042.google.com (mail-pj1-x1042.google.com [IPv6:2607:f8b0:4864:20::1042]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 16A36C061794; Sun, 28 Jun 2020 03:15:44 -0700 (PDT) Received: by mail-pj1-x1042.google.com with SMTP id ci15so627523pjb.5; Sun, 28 Jun 2020 03:15:44 -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=nVNoGcrbtjaZ4GttzC1leLHGKpRHUoIf6gW/P9mP5vA=; b=NkVBj5s7iQjaU/Yi/VIF1GCpAlRoS9YzQUup5V0keAn4HP6JSzvKtWMoeuw7/NjxCR kVa0P5nRWRBWFdhMKhnzLRPZ2guhokoclT7hwPFCbxdXoGvgJDvfLAl6qw6eFlOfgWV2 pw0iap4dSOew2fguilkjXjOdHRzNzTD46coY7v8QsgcLOe/OJUvcIclUoAj1fxuShHY6 m9Wd5Qs+v81CpOyZDlaLVz6I/4G4qWZSUaIBJwA9NNjIoGUwplKr/h/MhukL1pufwoof BD7KZnLDH3qJMC8xw3FGHf7Jt0cZvT1S2a/St8XOZgabS3oPlXytB+E3hQNu1NWzgxOr XpVw== 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=nVNoGcrbtjaZ4GttzC1leLHGKpRHUoIf6gW/P9mP5vA=; b=lZSQvDOpS65aO3YeOkZURVdJb2/p5CqQtuceDOKRk86ys7X4MW3KJX4jHh5lgg0glT d1qKoRQVWA16pVu7C4SpHEpeG3RFU6ITfrTDvpbj07MDgYV/UoRDGSaR+dX5MlfwuVpL qvs+99myVmvcKiVP5UVf/HBtdsBK+XCkC+MXx62dJF5GTmV9V+FaR5bSJwBchH/P7ivV wSGy5/CcjEni/LkVMwcwdss4pAixoH2eIE3Qwd7ltF6GAXEiLVGkFftSaMeKC87BySw1 IWDoJqGwgPZDSfGOatTTeWcEeRFm7hIrc9DU4xvG+unGkkyUt0O1syqUHQgtFA6APKXw oLrw== X-Gm-Message-State: AOAM532/0H8Jts57OAhDyTS+Iw6i02BZNx8sEjuAhbnRukqvgK/txctu tr9ekxk5s0mhDCObw5Eg/8I= X-Google-Smtp-Source: ABdhPJwmCm+KA8TPGTItXEQGsWRFcivwHuxETSBomvcRw+LRBnNDFtU6wK4toHme/k1LWlzA0pDGAg== X-Received: by 2002:a17:90b:4306:: with SMTP id ih6mr11239323pjb.62.1593339343667; Sun, 28 Jun 2020 03:15:43 -0700 (PDT) Received: from localhost ([43.224.245.180]) by smtp.gmail.com with ESMTPSA id s36sm26824208pgl.35.2020.06.28.03.15.42 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sun, 28 Jun 2020 03:15:43 -0700 (PDT) From: Geliang Tang To: Derek Chickles , Satanand Burla , Felix Manlunas , "David S. Miller" , Jakub Kicinski Cc: Geliang Tang , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next] liquidio: use list_empty_careful in lio_list_delete_head Date: Sun, 28 Jun 2020 18:14:13 +0800 Message-Id: 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_empty_careful() instead of open-coding. Signed-off-by: Geliang Tang --- drivers/net/ethernet/cavium/liquidio/octeon_network.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_network.h b/drivers/net/ethernet/cavium/liquidio/octeon_network.h index 50201fc86dcf..ebe56bd8849b 100644 --- a/drivers/net/ethernet/cavium/liquidio/octeon_network.h +++ b/drivers/net/ethernet/cavium/liquidio/octeon_network.h @@ -612,7 +612,7 @@ static inline struct list_head *lio_list_delete_head(struct list_head *root) { struct list_head *node; - if (root->prev == root && root->next == root) + if (list_empty_careful(root)) node = NULL; else node = root->next;