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 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2209CCCF9E0 for ; Tue, 28 Oct 2025 14:22:24 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8A1EC10E415; Tue, 28 Oct 2025 14:22:23 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="QlCEYile"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.16]) by gabe.freedesktop.org (Postfix) with ESMTPS id 2954010E415 for ; Tue, 28 Oct 2025 14:22:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1761661342; x=1793197342; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=px0MgSDxvp/2jAYLc+fSsb66AHIsm1T+dXEXQF/9FzY=; b=QlCEYileTNx8ZOBagdFl4aL3G4ak+yEpH5sUsRrRMOSD2LlD5YujGQjh LrS52fRTrx3w+23TGrmR0909bV1KyvwvinJz8nqaXa2JvwuJNA5Mn5lMb P1jNUdbLqwVC3LTVw09x1nSH9BVb9K7k785tmojxE2SSREg/2jodS7GNW FXYyzcdMJPsJRs/hEimzvOXVd5NSO40c8GX6Ax+KGwr7X5PwEXU9HZdW6 QCwd4tg8PLDSWb8Q02GgRyBRt+zCtnlBpf1wINCiuNCHU6L2g8iT2Vhc7 CpceAOsZXZqhAJMJCzEfAg0nHMrIoHj462IZ4wZ20sMR8GzzVI6PWmyXN g==; X-CSE-ConnectionGUID: Jix225lqT9mBYldOw1GF4w== X-CSE-MsgGUID: 3uSDDWKFSz+CH0g9lLvPKw== X-IronPort-AV: E=McAfee;i="6800,10657,11586"; a="51335815" X-IronPort-AV: E=Sophos;i="6.19,261,1754982000"; d="scan'208";a="51335815" Received: from fmviesa007.fm.intel.com ([10.60.135.147]) by fmvoesa110.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Oct 2025 07:22:19 -0700 X-CSE-ConnectionGUID: cTls5HCJRuGpZlmY+dGByg== X-CSE-MsgGUID: ug5gR5tiSbiJl0V4QntL/w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.19,261,1754982000"; d="scan'208";a="185055954" Received: from lkp-server02.sh.intel.com (HELO 66d7546c76b2) ([10.239.97.151]) by fmviesa007.fm.intel.com with ESMTP; 28 Oct 2025 07:22:16 -0700 Received: from kbuild by 66d7546c76b2 with local (Exim 4.96) (envelope-from ) id 1vDkaR-000JDt-0Q; Tue, 28 Oct 2025 14:22:13 +0000 Date: Tue, 28 Oct 2025 22:22:08 +0800 From: kernel test robot To: Miaoqian Lin , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , "benjamin.gaignard@linaro.org" , Philippe Cornu , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Cc: oe-kbuild-all@lists.linux.dev, linmq006@gmail.com, stable@vger.kernel.org Subject: Re: [PATCH] drm/of: Fix device node reference leak in drm_of_panel_bridge_remove Message-ID: <202510282155.MdnvC7YI-lkp@intel.com> References: <20251028060918.65688-1-linmq006@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251028060918.65688-1-linmq006@gmail.com> X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Hi Miaoqian, kernel test robot noticed the following build warnings: [auto build test WARNING on drm-misc/drm-misc-next] [also build test WARNING on linus/master v6.18-rc3 next-20251028] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Miaoqian-Lin/drm-of-Fix-device-node-reference-leak-in-drm_of_panel_bridge_remove/20251028-141134 base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next patch link: https://lore.kernel.org/r/20251028060918.65688-1-linmq006%40gmail.com patch subject: [PATCH] drm/of: Fix device node reference leak in drm_of_panel_bridge_remove config: x86_64-randconfig-161-20251028 (https://download.01.org/0day-ci/archive/20251028/202510282155.MdnvC7YI-lkp@intel.com/config) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251028/202510282155.MdnvC7YI-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202510282155.MdnvC7YI-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from drivers/gpu/drm/tiny/arcpgu.c:23: include/drm/drm_of.h: In function 'drm_of_panel_bridge_remove': include/drm/drm_of.h:174:9: error: implicit declaration of function 'of_node_put' [-Wimplicit-function-declaration] 174 | of_node_put(remote); | ^~~~~~~~~~~ In file included from include/linux/of_reserved_mem.h:6, from drivers/gpu/drm/tiny/arcpgu.c:28: include/linux/of.h: At top level: >> include/linux/of.h:129:13: warning: conflicting types for 'of_node_put'; have 'void(struct device_node *)' 129 | extern void of_node_put(struct device_node *node); | ^~~~~~~~~~~ include/drm/drm_of.h:174:9: note: previous implicit declaration of 'of_node_put' with type 'void(struct device_node *)' 174 | of_node_put(remote); | ^~~~~~~~~~~ vim +129 include/linux/of.h 0829f6d1f69e4f Pantelis Antoniou 2013-12-13 126 0f22dd395fc473 Grant Likely 2012-02-15 127 #ifdef CONFIG_OF_DYNAMIC 0f22dd395fc473 Grant Likely 2012-02-15 128 extern struct device_node *of_node_get(struct device_node *node); 0f22dd395fc473 Grant Likely 2012-02-15 @129 extern void of_node_put(struct device_node *node); 0f22dd395fc473 Grant Likely 2012-02-15 130 #else /* CONFIG_OF_DYNAMIC */ 3ecdd0515287af Rob Herring 2011-12-13 131 /* Dummy ref counting routines - to be implemented later */ 3ecdd0515287af Rob Herring 2011-12-13 132 static inline struct device_node *of_node_get(struct device_node *node) 3ecdd0515287af Rob Herring 2011-12-13 133 { 3ecdd0515287af Rob Herring 2011-12-13 134 return node; 3ecdd0515287af Rob Herring 2011-12-13 135 } 0f22dd395fc473 Grant Likely 2012-02-15 136 static inline void of_node_put(struct device_node *node) { } 0f22dd395fc473 Grant Likely 2012-02-15 137 #endif /* !CONFIG_OF_DYNAMIC */ 9448e55d032d99 Jonathan Cameron 2024-02-25 138 DEFINE_FREE(device_node, struct device_node *, if (_T) of_node_put(_T)) 3ecdd0515287af Rob Herring 2011-12-13 139 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki