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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED 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 41255C433F4 for ; Wed, 19 Sep 2018 20:39:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0200E2151B for ; Wed, 19 Sep 2018 20:39:07 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0200E2151B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lip6.fr Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732214AbeITCSl (ORCPT ); Wed, 19 Sep 2018 22:18:41 -0400 Received: from mail2-relais-roc.national.inria.fr ([192.134.164.83]:56771 "EHLO mail2-relais-roc.national.inria.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731460AbeITCSl (ORCPT ); Wed, 19 Sep 2018 22:18:41 -0400 X-IronPort-AV: E=Sophos;i="5.53,395,1531778400"; d="scan'208";a="347124368" Received: from 89-157-201-244.rev.numericable.fr (HELO hadrien) ([89.157.201.244]) by mail2-relais-roc.national.inria.fr with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 19 Sep 2018 22:38:47 +0200 Date: Wed, 19 Sep 2018 22:38:47 +0200 (CEST) From: Julia Lawall X-X-Sender: jll@hadrien To: Lyude Paul , dri-devel@lists.freedesktop.org, nouveau@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, amd-gfx@lists.freedesktop.org cc: David Airlie , linux-kernel@vger.kernel.org, stable@vger.kernel.org, Sean Paul , kbuild-all@01.org Subject: Re: [PATCH 1/6] drm/dp_mst: Introduce drm_dp_mst_connector_atomic_check() (fwd) Message-ID: User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, I don't think you can update the loop index variable in list_for_each_entry, because the mcro uses th index variable to get to the next element. Perhaps list_for_each_entry_safe would be more suitable? julia ---------- Forwarded message ---------- Date: Thu, 20 Sep 2018 04:30:13 +0800 From: kbuild test robot To: kbuild@01.org Cc: Julia Lawall Subject: Re: [PATCH 1/6] drm/dp_mst: Introduce drm_dp_mst_connector_atomic_check() CC: kbuild-all@01.org In-Reply-To: <20180918230637.20700-2-lyude@redhat.com> References: <20180918230637.20700-2-lyude@redhat.com> TO: Lyude Paul CC: dri-devel@lists.freedesktop.org, nouveau@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, amd-gfx@lists.freedesktop.org CC: David Airlie , linux-kernel@vger.kernel.org, stable@vger.kernel.org, Sean Paul Hi Lyude, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on drm-intel/for-linux-next] [also build test WARNING on v4.19-rc4 next-20180919] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Lyude-Paul/Fix-legacy-DPMS-changes-with-MST/20180919-203434 base: git://anongit.freedesktop.org/drm-intel for-linux-next :::::: branch date: 8 hours ago :::::: commit date: 8 hours ago >> drivers/gpu/drm/drm_dp_mst_topology.c:3144:1-20: iterator with update on line 3145 # https://github.com/0day-ci/linux/commit/f8df31d5221b9a6da6698d4a37e622253bb17cdc git remote add linux-review https://github.com/0day-ci/linux git remote update linux-review git checkout f8df31d5221b9a6da6698d4a37e622253bb17cdc vim +3144 drivers/gpu/drm/drm_dp_mst_topology.c 3f3353b7 Pandiyan, Dhinakaran 2017-04-20 3131 f8df31d5 Lyude Paul 2018-09-18 3132 static bool f8df31d5 Lyude Paul 2018-09-18 3133 drm_dp_mst_connector_still_exists(struct drm_connector *connector, f8df31d5 Lyude Paul 2018-09-18 3134 struct drm_dp_mst_topology_mgr *mgr, f8df31d5 Lyude Paul 2018-09-18 3135 struct drm_dp_mst_branch *mstb) f8df31d5 Lyude Paul 2018-09-18 3136 { f8df31d5 Lyude Paul 2018-09-18 3137 struct drm_dp_mst_port *port; f8df31d5 Lyude Paul 2018-09-18 3138 bool exists = false; f8df31d5 Lyude Paul 2018-09-18 3139 f8df31d5 Lyude Paul 2018-09-18 3140 mstb = drm_dp_get_validated_mstb_ref(mgr, mstb); f8df31d5 Lyude Paul 2018-09-18 3141 if (!mstb) f8df31d5 Lyude Paul 2018-09-18 3142 return false; f8df31d5 Lyude Paul 2018-09-18 3143 f8df31d5 Lyude Paul 2018-09-18 @3144 list_for_each_entry(port, &mstb->ports, next) { f8df31d5 Lyude Paul 2018-09-18 @3145 port = drm_dp_get_validated_port_ref(mgr, port); f8df31d5 Lyude Paul 2018-09-18 3146 if (!port) f8df31d5 Lyude Paul 2018-09-18 3147 continue; f8df31d5 Lyude Paul 2018-09-18 3148 f8df31d5 Lyude Paul 2018-09-18 3149 exists = (port->connector == connector || f8df31d5 Lyude Paul 2018-09-18 3150 (port->mstb && f8df31d5 Lyude Paul 2018-09-18 3151 drm_dp_mst_connector_still_exists(connector, mgr, f8df31d5 Lyude Paul 2018-09-18 3152 port->mstb))); f8df31d5 Lyude Paul 2018-09-18 3153 f8df31d5 Lyude Paul 2018-09-18 3154 drm_dp_put_port(port); f8df31d5 Lyude Paul 2018-09-18 3155 if (exists) f8df31d5 Lyude Paul 2018-09-18 3156 break; f8df31d5 Lyude Paul 2018-09-18 3157 } f8df31d5 Lyude Paul 2018-09-18 3158 f8df31d5 Lyude Paul 2018-09-18 3159 drm_dp_put_mst_branch_device(mstb); f8df31d5 Lyude Paul 2018-09-18 3160 return exists; f8df31d5 Lyude Paul 2018-09-18 3161 } f8df31d5 Lyude Paul 2018-09-18 3162 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation