From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.9]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1BF17421257 for ; Sat, 3 Oct 2026 11:55:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.9 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791028560; cv=none; b=jB7VAAYdspeYpohjvsztO9Pkqr8nejlMQXbvwueXe/zrE7gqJPaUPBcYSuSFOha2s/WicD7s7SizeeGDGOkyMu2uTgY8PFdOrkYLtrzXhTFmKKUVCz6zh07pPoDq2aR3lP6ZH6m2RslatKW6VxPj9fAhvf2lXZX/ixK8u5/QVaM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791028560; c=relaxed/simple; bh=nm6YN4tO/RwXz9ssT0IoLeFPT/PpWiERPWxA1pZGPWM=; h=Date:From:To:Cc:Subject:Message-ID; b=HggDCxc4D2lteGfmFfRMRZeBiIxf48lPoiJ0EB4TEQJd3aOM9JQrFxnqT+QzyTdNeJ1CwhS6faUl6y4bRpw7a8y41jSyguOO2/3nO4nJb/QDOIy/1h5BHZTfteEE/slOdla9YZHWzg4felJ2Gg5+XybL1qdKcp6X2FHk+0FUNgE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=GogBRx0e; arc=none smtp.client-ip=198.175.65.9 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="GogBRx0e" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1791028558; x=1822564558; h=date:from:to:cc:subject:message-id; bh=nm6YN4tO/RwXz9ssT0IoLeFPT/PpWiERPWxA1pZGPWM=; b=GogBRx0eUwh9iXie9fw/+nhrT29OVVTekV87TpK7mxHE71RvvXdYGyfT 7tw+NOAQXvQwjuU2OTsZ/rCH98jgjUaqEqRyht51zSf782xv++UxSJ4jf Pzy0fFFjEwHi7k56rn8XefZGZYietWHpIIsIGV7VSEo0vKfsqtZhACUe5 qlLElAvOYY4jfK1dD7FSBd0gApMus29anFvwzpeOFwiU3JOtvmZlis8uc +Eg3KZxacbf1YhhOzsWcJPtxotdK3THLLnb9dT9hY8VsYH9E33d2OyKJd o7ZQaETTZEhahhiu+ftQufmNkbE0SITay0uBmBTdENa/RVmWFguau0fgB Q==; X-CSE-ConnectionGUID: 7PYrvx9FT6285sWNzkf3Gw== X-CSE-MsgGUID: 0UuXx1HXRA+g6phc47qchg== X-IronPort-AV: E=McAfee;i="6800,10657,11923"; a="113554043" X-IronPort-AV: E=Sophos;i="6.27,138,1787036400"; d="scan'208";a="113554043" Received: from fmviesa007.fm.intel.com ([10.60.135.147]) by orvoesa101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Oct 2026 04:55:58 -0700 X-CSE-ConnectionGUID: Kiu+LzxgQBiVjJ5q1tCAaQ== X-CSE-MsgGUID: D5dy6uGVQjqf/Ybs185F5w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,138,1787036400"; d="scan'208";a="275963547" Received: from igk-lkp-server01.igk.intel.com (HELO 3fb566d470b1) ([10.211.93.152]) by fmviesa007.fm.intel.com with ESMTP; 03 Oct 2026 04:55:56 -0700 Received: from kbuild by 3fb566d470b1 with local (Exim 4.98.2) (envelope-from ) id 1xCyLJ-0000000012Z-23s6; Sat, 03 Oct 2026 11:55:53 +0000 Date: Sat, 03 Oct 2026 13:55:12 +0200 From: kernel test robot To: oe-kbuild@lists.linux.dev Cc: lkp@intel.com Subject: net/core/dev.o: warning: objtool: __netif_receive_skb_core.constprop.0+0x770: unreachable instruction Message-ID: <202610031300.KVVwBiwb-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: :::::: :::::: Manual check reason: "loongarch: unreachable instruction" :::::: BCC: lkp@intel.com CC: oe-kbuild-all@lists.linux.dev CC: linux-kernel@vger.kernel.org TO: Eric Dumazet CC: Jakub Kicinski CC: Simon Horman Hi Eric, FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: e767a4ea70a3992c37ed604157d32f0dfbf9b1e3 commit: a9b460225e47a3d98296eba71c62ff0ad58a2032 net: always inline some skb helpers date: 6 months ago :::::: branch date: 11 hours ago :::::: commit date: 6 months ago config: loongarch-randconfig-r2105-20261002 (https://download.01.org/0day-ci/archive/20261003/202610031300.KVVwBiwb-lkp@intel.com/config) compiler: loongarch64-linux-gcc (GCC) 16.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261003/202610031300.KVVwBiwb-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 | Fixes: a9b460225e47 ("net: always inline some skb helpers") | Reported-by: kernel test robot | Closes: https://lore.kernel.org/r/202610031300.KVVwBiwb-lkp@intel.com/ All warnings (new ones prefixed by >>): >> net/core/dev.o: warning: objtool: __netif_receive_skb_core.constprop.0+0x770: unreachable instruction net/core/dev.o: warning: objtool: netdev_run_todo+0x1d4: unreachable instruction net/core/dev.o: warning: objtool: unregister_netdevice_many_notify+0x254: unreachable instruction net/core/dev.o: warning: objtool: register_netdevice+0x88: unreachable instruction -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki