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 2860EC76186 for ; Mon, 29 Jul 2019 22:11:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EF221216C8 for ; Mon, 29 Jul 2019 22:11:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="RAfvxQcl" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388344AbfG2WLc (ORCPT ); Mon, 29 Jul 2019 18:11:32 -0400 Received: from mail-qt1-f202.google.com ([209.85.160.202]:37146 "EHLO mail-qt1-f202.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387769AbfG2WL3 (ORCPT ); Mon, 29 Jul 2019 18:11:29 -0400 Received: by mail-qt1-f202.google.com with SMTP id 41so50626753qtm.4 for ; Mon, 29 Jul 2019 15:11:29 -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=q/JO0jIzFDUcBLNa0OLAVEbtuFfd8ssnFHaHdmtCpxU=; b=RAfvxQcl4h2BOyaK31H1/xWYCyBx/eMduTNV0vQvG5cGkn5cGK3RzQnHoHIatewHnm Fg1LrxZP4gf7iMy/GnI+7ngsBGnaRAZjvWfL4bpRWJKpKv0/5v8jJJ54kIYZll1fkhrs CXXej9PXznYSVaqvLO4jibT0OH+iqf5eceI834QosZHeYCIlkQTBEqAYfwFwSt4dLmuw p49wppWLaI3vC7K4KJRvbYvAbQ8Uu8YGMIn/Ymu/YE8ZZOEgVLlGivl3A6edYaBM1xtW +v4tiDen5L66O2NJg/9wyISohBTn/MqJv8xjwO5aYduPo5+sY0d122+2EzQXQz0RNUx5 j4nQ== 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=q/JO0jIzFDUcBLNa0OLAVEbtuFfd8ssnFHaHdmtCpxU=; b=CyPpxDwtlcIJg89DP6xyW/6+UU8XHZDurqvNtuM5w/SqMqyGu2RP7nsgJqDqe9v4Js F0hyvIa1cCRX3Me0Y1Md3LTmfk1/y6+3mTsDbrAnxEKNYvfdURwVQhWNNaCPSQ/Kxhoi 1Z6K+BsQj/2KC9XzrKX1YSJhbsLty0eXLep1gvmrTEGoImeKQtbA62PJieGyiqs9f0nr fr8hDp28rP74phgrSXT2iPBaOasnhnkpNhBN+OVJedCfEWFJ48AwLyI1b0w207LvDBM2 G7tzmZPm+JpQuebZNVe12ojsFOpOw8wauTQmopHYABG+3yVXJTbZgJi09e0cH4DCibha U32g== X-Gm-Message-State: APjAAAXHuQfx57JhEJhuS6pBJWZVbzjtk7zCL5bOLrQ2zDhdqN+Q307l vC9yaFCvE1zsnGrNZJ5k9l5bxTX/CRRb8J4= X-Google-Smtp-Source: APXvYqydELxRbsHighcxSWgGx87UveXV5heA+fTgZ2mjwG8HEYlndd5i5Hfoa3E9mNglZFW6alDPgxqaqeQ/Og8= X-Received: by 2002:a05:620a:1228:: with SMTP id v8mr29782991qkj.357.1564438288576; Mon, 29 Jul 2019 15:11:28 -0700 (PDT) Date: Mon, 29 Jul 2019 15:11:01 -0700 In-Reply-To: <20190729221101.228240-1-saravanak@google.com> Message-Id: <20190729221101.228240-8-saravanak@google.com> Mime-Version: 1.0 References: <20190729221101.228240-1-saravanak@google.com> X-Mailer: git-send-email 2.22.0.709.g102302147b-goog Subject: [PATCH v8 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 41499ddc8d95..676b2f730d1b 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -682,6 +682,8 @@ 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); } -- 2.22.0.709.g102302147b-goog