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=DKIMWL_WL_HIGH, DKIM_ADSP_CUSTOM_MED,DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT 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 DAA41C18E5B for ; Tue, 17 Mar 2020 06:57:25 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id AF9EB205ED for ; Tue, 17 Mar 2020 06:57:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="XZickAUX"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=google.com header.i=@google.com header.b="UledzLdG" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AF9EB205ED Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:To:From:Subject:References:Mime-Version :Message-Id:In-Reply-To:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=vuiCl/YKXkMmoIEAlQdw60+sNik4kmpGbOrOEtiwDR0=; b=XZickAUXpSxKc+ AIas68sC6Oe939MJoe39xuwfbD90duM3aKGmGX+KJPhhMEITj6LrWdu0iQAAAehoX/vUtWXqNt06y HjjTExRvP823mW2YfSoVCDtKbEq6vxwoWZmoA1qN1VNrpNyo5qNvVjSxQKNzPL2FlRPS8pfaJa0Gh TfSfcjpOz/8eOvnx78qdu2uZ9krn7qm/aJB6EpsIs5BN9pHh5eCWmV9cXbcyw7V6AEW1dhrA0mgDj yjD7rI0jqvjTngaubyhvkoebb4QxN519LEvUemNhj2RRbaIT3hw0YkHVU+kJNGF+bj8FXBlH2iEvG VEzaZPyuyH737elpTTtg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jE6AF-0006p3-Id; Tue, 17 Mar 2020 06:57:23 +0000 Received: from mail-pl1-x649.google.com ([2607:f8b0:4864:20::649]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jE68F-0004vA-OK for linux-arm-kernel@lists.infradead.org; Tue, 17 Mar 2020 06:55:23 +0000 Received: by mail-pl1-x649.google.com with SMTP id t2so11912297ply.14 for ; Mon, 16 Mar 2020 23:55:18 -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=pBzGjleoRDABxMsluExcps57eD2wDVloI24KvIbaURE=; b=UledzLdGZZjZgCktwDrReM83P2/tmN5F4Qnd1xTlFNMGgY4exTx7PpUlYpVJcYkHn2 qOqSDPrlyo1Tg8E7TNmeCbcaRvzN8X/3p3klGc1pbS5gp4joG2QV+m7zPocAKbdG/djV mjbSeXmumJlZpNyD2H16Tr4UjjvSjJ9VFvp84bYCSC8nAKD0ptzQmWlkEpmb2H+YyfEx Q5CmFKr/pxFMWAzVJsJwrAUZbJgxAjQUKhVZinz2cSSZ3AoAfMo2MvYj7YHTC2PK7FYy y7OzDTmhrmK/3gX546uw6Y/xdIMPy5ZSM/4+vdG2TJbkV4Jqx4cGvW2bLV42+qET+yvr zeNA== 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=pBzGjleoRDABxMsluExcps57eD2wDVloI24KvIbaURE=; b=B5mj/Ie8TG7BaCQjg+dYsZYmcGLtMCUPQaZ91broF5flOOUajAJg/e/arZME6V/M+j cOnwLG4+NxsXMO3s89lpM5/bk1nvMvX/tTFbMddT6BOgGvulsHDwGmCW04944H89OqgR eZ+Vpt83M2Kx3pNlfppE5UV8RNCR7cpVoyGW2Q0h+dIp6WGv/d9BoTbToMgR0dQCaqXj tkY+M5g6FrosVGeTTdkCM9alecsFt9cBiTru3cUXe2eTxuQdyJwuK0uvUx7pnhZtj02X cccEoZTcl7sPSYD4lYMKjaLSe005RjuZAwYEoBmGfAYbvqNaAw9TAJlhz+y69ic0StET bT+Q== X-Gm-Message-State: ANhLgQ3yPy6vMFJiqWp4RMCSPChuweWjRBc6fQ5j19yDrG7AW6/+ASSU 8ymV4+gDM2wYdiWwV6SQ1MRi7i+0CKoTJLY= X-Google-Smtp-Source: ADFU+vsI46mjOrzK35IlZFKtn+I16f/ZJ36YpcLgiFZqwRzWEH2bTScx3tkAxfqOUW2oCR5e/5W0bdip3gPKHnQ= X-Received: by 2002:a17:90a:178e:: with SMTP id q14mr3975908pja.132.1584428117265; Mon, 16 Mar 2020 23:55:17 -0700 (PDT) Date: Mon, 16 Mar 2020 23:54:52 -0700 In-Reply-To: <20200317065452.236670-1-saravanak@google.com> Message-Id: <20200317065452.236670-7-saravanak@google.com> Mime-Version: 1.0 References: <20200317065452.236670-1-saravanak@google.com> X-Mailer: git-send-email 2.25.1.481.gfbce0eb801-goog Subject: [PATCH v1 6/6] driver core: Fix creation of device links with PM-runtime flags From: Saravana Kannan To: stable@vger.kernel.org, Jonathan Corbet , Greg Kroah-Hartman , "Rafael J. Wysocki" , Len Brown , Pavel Machek , Matthias Brugger X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200316_235519_808901_E5FE4A23 X-CRM114-Status: GOOD ( 10.93 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Rafael J. Wysocki" , Saravana Kannan , linux-pm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Jon Hunter , linux-mediatek@lists.infradead.org, Dmitry Osipenko , kernel-team@android.com, linux-arm-kernel@lists.infradead.org, Marek Szyprowski Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: "Rafael J. Wysocki" After commit 515db266a9da ("driver core: Remove device link creation limitation"), if PM-runtime flags are passed to device_link_add(), it will fail (returning NULL) due to an overly restrictive flags check introduced by that commit. Fix this issue by extending the check in question to cover the PM-runtime flags too. Fixes: 515db266a9da ("driver core: Remove device link creation limitation") Reported-by: Dmitry Osipenko Tested-by: Jon Hunter Signed-off-by: Rafael J. Wysocki Tested-by: Dmitry Osipenko Tested-by: Marek Szyprowski Link: https://lore.kernel.org/r/7674989.cD04D8YV3U@kreacher Signed-off-by: Greg Kroah-Hartman (cherry picked from commit fb583c8eeeb1fd57e24ef41ed94c9112067aeac9) Signed-off-by: Saravana Kannan --- drivers/base/core.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/base/core.c b/drivers/base/core.c index 31007af4cb79..928fc1532a70 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -213,6 +213,9 @@ void device_pm_move_to_tail(struct device *dev) DL_FLAG_AUTOREMOVE_SUPPLIER | \ DL_FLAG_AUTOPROBE_CONSUMER) +#define DL_ADD_VALID_FLAGS (DL_MANAGED_LINK_FLAGS | DL_FLAG_STATELESS | \ + DL_FLAG_PM_RUNTIME | DL_FLAG_RPM_ACTIVE) + /** * device_link_add - Create a link between two devices. * @consumer: Consumer end of the link. @@ -274,8 +277,7 @@ struct device_link *device_link_add(struct device *consumer, { struct device_link *link; - if (!consumer || !supplier || - (flags & ~(DL_FLAG_STATELESS | DL_MANAGED_LINK_FLAGS)) || + if (!consumer || !supplier || flags & ~DL_ADD_VALID_FLAGS || (flags & DL_FLAG_STATELESS && flags & DL_MANAGED_LINK_FLAGS) || (flags & DL_FLAG_AUTOPROBE_CONSUMER && flags & (DL_FLAG_AUTOREMOVE_CONSUMER | -- 2.25.1.481.gfbce0eb801-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel