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=-17.4 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT, USER_IN_DEF_DKIM_WL 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 8A542C76188 for ; Sat, 20 Jul 2019 06:17:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5EAD421872 for ; Sat, 20 Jul 2019 06:17:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="UOqEDx5B" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726478AbfGTGRV (ORCPT ); Sat, 20 Jul 2019 02:17:21 -0400 Received: from mail-pf1-f202.google.com ([209.85.210.202]:54050 "EHLO mail-pf1-f202.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726437AbfGTGRR (ORCPT ); Sat, 20 Jul 2019 02:17:17 -0400 Received: by mail-pf1-f202.google.com with SMTP id 191so19978966pfy.20 for ; Fri, 19 Jul 2019 23:17:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=XHZhcOCJhaOJlDHmwmoOr4DNUGpZjh/DgPbCgvVVpt0=; b=UOqEDx5Bi4XIR97mxVHJYqDas/gsviEa+U5OwWS5eTKp23OgwAL8BATExEQrvB5K3e Ac5paop5IS6XUhdjTZWHgpDoDoOWqQi2476Ysg+MGrfgVAzjXMld8YKcJJHViAa1SGdX hUkYrdANakYTdX/zk5IO2S3mEAx8rXP3gNNE7HZjzxm4i2cCs2y3EQN9EWVdMCNnEBFz TpU/TMt9MQC+Ptilkiks31OWbz2LLdF0QU4/jbIyoYugEgz7isdRkNSSt9l9uvzBHksG rTwMTpV8jj00BNiu3t7MVWhQkTM61rPqYZoKZ3V1kwSsCQRysU/IpzFXBOUyyoWjFjvT HH2Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=XHZhcOCJhaOJlDHmwmoOr4DNUGpZjh/DgPbCgvVVpt0=; b=kYZHmnCQ/W7euI+PQBrMT1/DUBNUVoixYpwX6tIK55qLTpOA/7J+LX2GB/jNgm7Ap7 uwmfKWOE28NJKjZqVrwOaSlwaxUQiqEoSZtLLDxHiKYl+KH/ECt3SV+xDDB2QMl9ETtI DCt06KvFfYQTwkzWO3wPkQLMLWgnfAme03XNoZHLENnfjn0wpKq+eF07KM0c/HyH0PR9 JwlaiujGMXX7HMoOjYE4ptfhAnpf4FFegwLPAPOwNHATeZL7eqoNjp5u6VRFuwuNvp7F JImY1Cc5iUyFsRBXp1tG0Z8RqdPj1UcxWC7aNz4TcUdINMbJaa67SePDclSYHvqERM9G BAYQ== X-Gm-Message-State: APjAAAWoIapQBfIzcAkMDKq/s0O4mPdWtDXk/dSEQNZVU0LzId3sfPzh Dy4DIjLCxK4LXcwuz1tsRJnqpXQSn6MjTjw= X-Google-Smtp-Source: APXvYqzAzcE5vBjP6RCbXmbEeN0ZSnHHEiMT4lXXkWB1Ez6n0o/JsYvE1WUbpT4tc6ua9le+jI6/+snaGAzggFc= X-Received: by 2002:a63:1950:: with SMTP id 16mr58157917pgz.312.1563603436732; Fri, 19 Jul 2019 23:17:16 -0700 (PDT) Date: Fri, 19 Jul 2019 23:16:46 -0700 In-Reply-To: <20190720061647.234852-1-saravanak@google.com> Message-Id: <20190720061647.234852-8-saravanak@google.com> Mime-Version: 1.0 References: <20190720061647.234852-1-saravanak@google.com> X-Mailer: git-send-email 2.22.0.657.g960e92d24f-goog Subject: [PATCH v6 7/7] of/platform: Don't create device links for default busses From: Saravana Kannan To: Rob Herring , Mark Rutland , Greg Kroah-Hartman , "Rafael J. Wysocki" , Frank Rowand Cc: Saravana Kannan , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, David Collins , kernel-team@android.com Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Default busses also have devices created for them. But there's no point in creating device links for them. It's especially wasteful as it'll cause the traversal of the entire device tree and also spend a lot of time checking and figuring out that creating those links isn't allowed. So check for default busses and skip trying to create device links for them. Signed-off-by: Saravana Kannan --- drivers/of/platform.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/of/platform.c b/drivers/of/platform.c index c1a116f7a087..8bf975ee2ff7 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -676,6 +676,8 @@ static int of_link_to_suppliers(struct device *dev) return 0; if (unlikely(!dev->of_node)) return 0; + if (of_match_node(of_default_bus_match_table, dev->of_node)) + return 0; return __of_link_to_suppliers(dev, dev->of_node); } -- 2.22.0.657.g960e92d24f-goog