From patchwork Wed Sep 15 08:11:36 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Saravana Kannan X-Patchwork-Id: 513119 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=-26.2 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT, USER_IN_DEF_DKIM_WL autolearn=unavailable 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 3EB88C433EF for ; Wed, 15 Sep 2021 08:12:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1D13A608FB for ; Wed, 15 Sep 2021 08:12:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237251AbhIOINq (ORCPT ); Wed, 15 Sep 2021 04:13:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56844 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236584AbhIOINU (ORCPT ); Wed, 15 Sep 2021 04:13:20 -0400 Received: from mail-qv1-xf49.google.com (mail-qv1-xf49.google.com [IPv6:2607:f8b0:4864:20::f49]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ED14DC0613E3 for ; Wed, 15 Sep 2021 01:11:54 -0700 (PDT) Received: by mail-qv1-xf49.google.com with SMTP id z6-20020a056214060600b0037a3f6bd9abso2782216qvw.3 for ; Wed, 15 Sep 2021 01:11:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=cajmSKnfvpV4C51UK3Pjlq0PRtDcgxs8IXvmV4F1Bco=; b=MIYh+lurVtarZ7crdmPcrieMH8EZz98B67CS2pRpH+bw+nIifY+/74UZXzCrFVmvG7 5JNVXmSzUYMT6PjI6EPXSUDNQWJ0WtDfUXOTV574KiQakHURApKafcz71OkdVKsfbYES cGTYLboAdCqfpDw4psp0OfGRrZdivXKhQR05iQ0bEBla+cLfZ8Lun5wq2S79odkUsf82 Ft1meJUUQbSwLBZsoe3vZdLzB1wwu6jtfH6CZvyWrohKZv3afrvUIe6eG7+LQQkv1p0C Rb466pXXNvNvL7w9bCjzEvxuIC/e+NPOqYO0ymBiCbYLNQvQXpENU1zwOp5sl88UQ6Cd 5XtQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=cajmSKnfvpV4C51UK3Pjlq0PRtDcgxs8IXvmV4F1Bco=; b=l2nixXL7t1XlgeH/z2nsR91H4P/zmWby9TjdogVqfO0ZVWxTCVLox4I1bPqbPNTDV6 84GYBRHsbPprSpYJAgbnjVxI81dUswSeVEN8c1BJrlNta77ajk8VSz1d1QksqO96vwHQ YggrFQfFw3UJEgBMLW38gyDZXAXVXcI4Lwr7wAiVu3RwKbkKBuY8jCMr2cCIUJuCAVOz 7jg0/jeoZw0PilydfE+46DoBd2X6eW4J+MY6G64e5kz+0AUSoMBHfb5tWIECmwsh8mdA OUxjVjoOxkrRW72dEgeXwAo5h9VWZK9HLqy1fr0sRz2Bk0dh2dBHnIstoWL58Mf8Cd5K Hk+Q== X-Gm-Message-State: AOAM531EqbJCahYuujW1sW5eKZtHnzn2XVOcl5NVWyTofEXq/3UEtLqj MNdJMQLJz8Qjy1A1qIVa/YB7TYgLdThhdqw= X-Google-Smtp-Source: ABdhPJw1MLQHUnPoE+xMUea0zwhQNWiEbbrDkOr6kvJJOLYN+b9okqykFfE3JvdOltc9UL2WPu1eY+Y4pt4ZAjk= X-Received: from saravanak.san.corp.google.com ([2620:15c:2d:3:16d1:ab0e:fc4a:b9b1]) (user=saravanak job=sendgmr) by 2002:a0c:ab01:: with SMTP id h1mr9553038qvb.0.1631693514157; Wed, 15 Sep 2021 01:11:54 -0700 (PDT) Date: Wed, 15 Sep 2021 01:11:36 -0700 In-Reply-To: <20210915081139.480263-1-saravanak@google.com> Message-Id: <20210915081139.480263-5-saravanak@google.com> Mime-Version: 1.0 References: <20210915081139.480263-1-saravanak@google.com> X-Mailer: git-send-email 2.33.0.309.g3052b89438-goog Subject: [PATCH v2 4/6] driver core: Add debug logs when fwnode links are added/deleted From: Saravana Kannan To: Greg Kroah-Hartman , "Rafael J. Wysocki" , Andrew Lunn , Heiner Kallweit , Russell King , "David S. Miller" , Jakub Kicinski , Len Brown , Saravana Kannan Cc: John Stultz , Marek Szyprowski , Rob Herring , Geert Uytterhoeven , Vladimir Oltean , kernel-team@android.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-acpi@vger.kernel.org, Geert Uytterhoeven Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org This will help with debugging fw_devlink issues. Signed-off-by: Saravana Kannan Reviewed-by: Geert Uytterhoeven --- drivers/base/core.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/base/core.c b/drivers/base/core.c index 5e7faad4e083..f06e8e2dc69b 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -95,6 +95,8 @@ int fwnode_link_add(struct fwnode_handle *con, struct fwnode_handle *sup) list_add(&link->s_hook, &sup->consumers); list_add(&link->c_hook, &con->suppliers); + pr_debug("%pfwP Linked as a fwnode consumer to %pfwP\n", + con, sup); out: mutex_unlock(&fwnode_link_lock); @@ -109,6 +111,8 @@ int fwnode_link_add(struct fwnode_handle *con, struct fwnode_handle *sup) */ static void __fwnode_link_del(struct fwnode_link *link) { + pr_debug("%pfwP Dropping the fwnode link to %pfwP\n", + link->consumer, link->supplier); list_del(&link->s_hook); list_del(&link->c_hook); kfree(link);