From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BAA36CA9EA0 for ; Sun, 20 Oct 2019 03:21:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9194820659 for ; Sun, 20 Oct 2019 03:21:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="X4NEMCWm" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726824AbfJTDVV (ORCPT ); Sat, 19 Oct 2019 23:21:21 -0400 Received: from mail-qt1-f194.google.com ([209.85.160.194]:33917 "EHLO mail-qt1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726388AbfJTDUO (ORCPT ); Sat, 19 Oct 2019 23:20:14 -0400 Received: by mail-qt1-f194.google.com with SMTP id 3so15295737qta.1; Sat, 19 Oct 2019 20:20:13 -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:in-reply-to:references :mime-version:content-transfer-encoding; bh=iOKndeBThovubtjZKn69z94e2VS0eKsqBVqPTnn21W0=; b=X4NEMCWmmXQEESFzx2YJyASjyiG37Cakm7LWNaIp2JtjeO7FwAHCj/yCPYqlY/Lm6h cvwtSRqnmoOjjdKEyCpVq8BrPaQ+wFWKD503/XIsbKp9Q3gCxn+h3ITfuYJwLmPjMHDz 5vwd1Q/QGAT/y5Qzwi8hoBDjKZdKQW/Fz6Cvt3k1baZZmyiFloaIqd9clPdyDPVeGVMR XplSXOetntTPn0QUsFMfT/m4hCqW/xGdWq037Lq01artIuIRIkEr2OAhotjq1fhy3O0k B8pkVCthrwWjSZTAt0jhIF837KxPcSZqQno0/RqHYITrlT5J/Njz/ZSah/TACZGHlMGD b4qA== 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:in-reply-to :references:mime-version:content-transfer-encoding; bh=iOKndeBThovubtjZKn69z94e2VS0eKsqBVqPTnn21W0=; b=QfGbIZH36b2eQuKlSBbJHUCJH/fyqIRAh4pLb8YzBcaQgQ4/qTxE4otWn8N9h37Xah slxnLBvqPubyzriZhq4HFbDIgy/iBBaYna5+eurXkRvBcoPD0eXCdZ7Pk2n0B0gAgP95 yqQU5K9QY/gpxrbFhYFM4W4/88gEE7GVKh3kOYmDoFI9Y0CkSK6eG+AxygcxfotUeGdx v0gdLiE5WLd9M/HORGXa1/rRr0igx0aff2WzVdtxo9iQ8JIBcduljSP2U2lUTiYtR/I2 SZuN8Urqb/ZGGLRN/cYidSRw60SPlaSFq1FRSRKHiL8mvRtQ7jrEy3w3gKDn/GS6iOyn nIaQ== X-Gm-Message-State: APjAAAX9n7Bz7Bh6xG1klj/8O9d1agzYQg5Zu9EfoDzwGDzuB5SMqujc 6DVzsiX0YFNM7EYA4MsTVvr4Dsfy X-Google-Smtp-Source: APXvYqwdxx/Wb5LEDmKnqo46NOtKId8II/Sx2GzbUdXKPa2Kxq+rBPjfJB4JPi+6sA4lL1dmD/6drA== X-Received: by 2002:ac8:28a3:: with SMTP id i32mr17952799qti.42.1571541612944; Sat, 19 Oct 2019 20:20:12 -0700 (PDT) Received: from localhost (modemcable249.105-163-184.mc.videotron.ca. [184.163.105.249]) by smtp.gmail.com with ESMTPSA id l93sm49757qtd.86.2019.10.19.20.20.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 19 Oct 2019 20:20:12 -0700 (PDT) From: Vivien Didelot To: "David S. Miller" Cc: linux-kernel@vger.kernel.org, Vivien Didelot , Florian Fainelli , Andrew Lunn , netdev@vger.kernel.org Subject: [PATCH net-next 04/16] net: dsa: use ports list to find slave Date: Sat, 19 Oct 2019 23:19:29 -0400 Message-Id: <20191020031941.3805884-5-vivien.didelot@gmail.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191020031941.3805884-1-vivien.didelot@gmail.com> References: <20191020031941.3805884-1-vivien.didelot@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use the new ports list instead of iterating over switches and their ports when looking for a slave device from a given master interface. Signed-off-by: Vivien Didelot --- net/dsa/dsa_priv.h | 23 ++++++----------------- 1 file changed, 6 insertions(+), 17 deletions(-) diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h index 12f8c7ee4dd8..53e7577896b6 100644 --- a/net/dsa/dsa_priv.h +++ b/net/dsa/dsa_priv.h @@ -104,25 +104,14 @@ static inline struct net_device *dsa_master_find_slave(struct net_device *dev, { struct dsa_port *cpu_dp = dev->dsa_ptr; struct dsa_switch_tree *dst = cpu_dp->dst; - struct dsa_switch *ds; - struct dsa_port *slave_port; + struct dsa_port *dp; - if (device < 0 || device >= DSA_MAX_SWITCHES) - return NULL; + list_for_each_entry(dp, &dst->ports, list) + if (dp->ds->index == device && dp->index == port && + dp->type == DSA_PORT_TYPE_USER) + return dp->slave; - ds = dst->ds[device]; - if (!ds) - return NULL; - - if (port < 0 || port >= ds->num_ports) - return NULL; - - slave_port = &ds->ports[port]; - - if (unlikely(slave_port->type != DSA_PORT_TYPE_USER)) - return NULL; - - return slave_port->slave; + return NULL; } /* port.c */ -- 2.23.0