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a="2364937" X-IronPort-AV: E=Sophos;i="6.27,191,1787036400"; d="scan'208";a="2364937" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by orvoesa109.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Nov 2026 10:11:04 -0800 X-CSE-ConnectionGUID: NwbxsqZBTwWoiRPuuqyvpg== X-CSE-MsgGUID: pqzIkRSeSW6iLT9RKtxPaA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,191,1787036400"; d="scan'208";a="6184129" Received: from lkp-server01.sh.intel.com (HELO 0caa9d2d175c) ([10.239.97.150]) by orviesa002.jf.intel.com with ESMTP; 02 Nov 2026 10:11:01 -0800 Received: from kbuild by 0caa9d2d175c with local (Exim 4.98.2) (envelope-from ) id 1xNwUk-00000000hcC-0SV1; Mon, 02 Nov 2026 18:10:58 +0000 Date: Tue, 3 Nov 2026 02:10:03 +0800 From: kernel test robot To: Binbin Deng <18983559317@163.com>, dsahern@kernel.org, idosch@nvidia.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Binbin Deng <18983559317@163.com> Subject: Re: [PATCH net v1] igmp: use copy-on-write RCU updates in ip_mc_source() Message-ID: <202611030211.aklzSdgm-lkp@intel.com> References: <20261102095312.47767-1-18983559317@163.com> X-Mailing-List: netdev@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261102095312.47767-1-18983559317@163.com> Hi Binbin, kernel test robot noticed the following build errors: [auto build test ERROR on net/main] url: https://github.com/intel-lab-lkp/linux/commits/Binbin-Deng/igmp-use-copy-on-write-RCU-updates-in-ip_mc_source/20261102-175312 base: net/main patch link: https://lore.kernel.org/r/20261102095312.47767-1-18983559317%40163.com patch subject: [PATCH net v1] igmp: use copy-on-write RCU updates in ip_mc_source() config: sparc64-randconfig-1001-20261102 (https://download.01.org/0day-ci/archive/20261103/202611030211.aklzSdgm-lkp@intel.com/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261103/202611030211.aklzSdgm-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/202611030211.aklzSdgm-lkp@intel.com/ All errors (new ones prefixed by >>): net/ipv4/igmp.c:2646:1: error: function definition is not allowed here 2646 | { | ^ net/ipv4/igmp.c:2737:1: error: function definition is not allowed here 2737 | { | ^ net/ipv4/igmp.c:2802:1: error: function definition is not allowed here 2802 | { | ^ net/ipv4/igmp.c:2851:1: error: function definition is not allowed here 2851 | { | ^ net/ipv4/igmp.c:2898:1: error: function definition is not allowed here 2898 | { | ^ net/ipv4/igmp.c:2924:1: error: function definition is not allowed here 2924 | { | ^ net/ipv4/igmp.c:3277:1: error: function definition is not allowed here 3277 | { | ^ >> net/ipv4/igmp.c:3294:19: error: use of undeclared identifier 'igmp_netdev_event'; did you mean 'igmp_ifc_event'? 3294 | .notifier_call = igmp_netdev_event, | ^~~~~~~~~~~~~~~~~ | igmp_ifc_event net/ipv4/igmp.c:884:13: note: 'igmp_ifc_event' declared here 884 | static void igmp_ifc_event(struct in_device *in_dev) | ^ >> net/ipv4/igmp.c:3294:19: error: incompatible function pointer types initializing 'notifier_fn_t' (aka 'int (*)(struct notifier_block *, unsigned long, void *)') with an expression of type 'void (struct in_device *)' [-Wincompatible-function-pointer-types] 3294 | .notifier_call = igmp_netdev_event, | ^~~~~~~~~~~~~~~~~ net/ipv4/igmp.c:3298:1: error: function definition is not allowed here 3298 | { | ^ >> net/ipv4/igmp.c:3316:2: error: expected '}' 3316 | } | ^ net/ipv4/igmp.c:2485:1: note: to match this '{' 2485 | { | ^ 11 errors generated. vim +3294 net/ipv4/igmp.c 4aa5dee4d99978 Jiri Pirko 2013-07-20 3292 4aa5dee4d99978 Jiri Pirko 2013-07-20 3293 static struct notifier_block igmp_notifier = { 4aa5dee4d99978 Jiri Pirko 2013-07-20 @3294 .notifier_call = igmp_netdev_event, 4aa5dee4d99978 Jiri Pirko 2013-07-20 3295 }; 4aa5dee4d99978 Jiri Pirko 2013-07-20 3296 72c1d3bdd5bf10 WANG Cong 2014-01-10 3297 int __init igmp_mc_init(void) 7091e728c57015 Alexey Dobriyan 2008-12-25 3298 { 72c1d3bdd5bf10 WANG Cong 2014-01-10 3299 #if defined(CONFIG_PROC_FS) 4aa5dee4d99978 Jiri Pirko 2013-07-20 3300 int err; 4aa5dee4d99978 Jiri Pirko 2013-07-20 3301 4aa5dee4d99978 Jiri Pirko 2013-07-20 3302 err = register_pernet_subsys(&igmp_net_ops); 4aa5dee4d99978 Jiri Pirko 2013-07-20 3303 if (err) 4aa5dee4d99978 Jiri Pirko 2013-07-20 3304 return err; 4aa5dee4d99978 Jiri Pirko 2013-07-20 3305 err = register_netdevice_notifier(&igmp_notifier); 4aa5dee4d99978 Jiri Pirko 2013-07-20 3306 if (err) 4aa5dee4d99978 Jiri Pirko 2013-07-20 3307 goto reg_notif_fail; 4aa5dee4d99978 Jiri Pirko 2013-07-20 3308 return 0; 4aa5dee4d99978 Jiri Pirko 2013-07-20 3309 4aa5dee4d99978 Jiri Pirko 2013-07-20 3310 reg_notif_fail: 4aa5dee4d99978 Jiri Pirko 2013-07-20 3311 unregister_pernet_subsys(&igmp_net_ops); 4aa5dee4d99978 Jiri Pirko 2013-07-20 3312 return err; 72c1d3bdd5bf10 WANG Cong 2014-01-10 3313 #else 72c1d3bdd5bf10 WANG Cong 2014-01-10 3314 return register_netdevice_notifier(&igmp_notifier); ^1da177e4c3f41 Linus Torvalds 2005-04-16 3315 #endif 72c1d3bdd5bf10 WANG Cong 2014-01-10 @3316 } -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki