From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.11]) (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 130E62F3E; Fri, 27 Jun 2025 06:42:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.11 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751006537; cv=none; b=AUEdBm1E1+8yaX/+0RHrFjcFZbV0TJkyhZ0rHPlTzwolku7s/fsGXnRmx6VY/BCoqAIU95tZJKX6Hx2I2ea6HVvIRZTTsKdtF4HispUEeEOfeIc8qAHEXgRZgWk5BFssTBCeWXJUntxcvpbaEEZHqBzEarRJnzgaMIkuEtOxlxA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751006537; c=relaxed/simple; bh=vxdzXCA6uv6ITMEmQeBZBJbpf7EQ+8bixtqN/sPot0o=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=hBbGyJwnarKXnhLvnbfFWg0UrQdCZaD+pwhVJqZH/87t7QfOlpdGwBrJmWYjFIVtEhhUhBJBpaEveFr9yYxNcviPXwdiWXD6X3B2Lgef0ydi+zm7Cb3xfyhdXi4+LWTr2Gyv/Ikvr9yPpO9IXM929HVBmvRb2axSpQZvqF/SIHw= 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=UUDep40g; arc=none smtp.client-ip=192.198.163.11 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="UUDep40g" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1751006536; x=1782542536; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=vxdzXCA6uv6ITMEmQeBZBJbpf7EQ+8bixtqN/sPot0o=; b=UUDep40gQbBTHVnYkfA9a/sPJlQRNTgUGSOPPjmnONtJ9qKSDPDZmCHp zEJ3mCPhXXcHLQ991oIgEoBzjPLBf9TjwX9/c/poQznMsMT7Gc2NWzfa9 wH1kRiqpYTlLJf1G9g8ERYj26orefpXsFlYBTjBIBFuQ/GLsFjoKK3dS0 RpxMU/pCNkyD5REOu2Q98ka7ZoKXYgIZzNWQQivAgUOQG/LW2O5hXGqIQ 3P0juFSs2yAwKyqqZkFbhK9KdJr6doDuxmpDmQycZmJ1MBRKjvgWuEatk faUhTi3QmS08T8dGiecBDTf+C46yzMv3+OSAOH8aFagaY30vF1VHfP5XH w==; X-CSE-ConnectionGUID: lccl08yoTQOPXw1LkASIkA== X-CSE-MsgGUID: mJuH6Y7dRlCO3MxgLyhX7g== X-IronPort-AV: E=McAfee;i="6800,10657,11476"; a="63913850" X-IronPort-AV: E=Sophos;i="6.16,269,1744095600"; d="scan'208";a="63913850" Received: from orviesa006.jf.intel.com ([10.64.159.146]) by fmvoesa105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Jun 2025 23:42:15 -0700 X-CSE-ConnectionGUID: O441FA8cQuiHFmr0hGjU4A== X-CSE-MsgGUID: OOenNMkkTAWhitkwCCiBEg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,269,1744095600"; d="scan'208";a="152243449" Received: from lkp-server01.sh.intel.com (HELO e8142ee1dce2) ([10.239.97.150]) by orviesa006.jf.intel.com with ESMTP; 26 Jun 2025 23:42:12 -0700 Received: from kbuild by e8142ee1dce2 with local (Exim 4.96) (envelope-from ) id 1uV2mm-000VsI-2z; Fri, 27 Jun 2025 06:42:08 +0000 Date: Fri, 27 Jun 2025 14:41:58 +0800 From: kernel test robot To: Paolo Abeni , netdev@vger.kernel.org Cc: oe-kbuild-all@lists.linux.dev, Willem de Bruijn , Jason Wang , Andrew Lunn , Eric Dumazet , Jakub Kicinski , "Michael S. Tsirkin" , Xuan Zhuo , Eugenio =?iso-8859-1?Q?P=E9rez?= , Yuri Benditovich , Akihiko Odaki , Jonathan Corbet , kvm@vger.kernel.org, linux-doc@vger.kernel.org Subject: Re: [PATCH v6 net-next 4/9] vhost-net: allow configuring extended features Message-ID: <202506271443.G9cAx8PS-lkp@intel.com> References: <23e46bff5333015d92bf0876033750d9fbf555a0.1750753211.git.pabeni@redhat.com> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <23e46bff5333015d92bf0876033750d9fbf555a0.1750753211.git.pabeni@redhat.com> Hi Paolo, kernel test robot noticed the following build warnings: [auto build test WARNING on net-next/main] url: https://github.com/intel-lab-lkp/linux/commits/Paolo-Abeni/scripts-kernel_doc-py-properly-handle-VIRTIO_DECLARE_FEATURES/20250624-221751 base: net-next/main patch link: https://lore.kernel.org/r/23e46bff5333015d92bf0876033750d9fbf555a0.1750753211.git.pabeni%40redhat.com patch subject: [PATCH v6 net-next 4/9] vhost-net: allow configuring extended features config: csky-randconfig-001-20250627 (https://download.01.org/0day-ci/archive/20250627/202506271443.G9cAx8PS-lkp@intel.com/config) compiler: csky-linux-gcc (GCC) 15.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250627/202506271443.G9cAx8PS-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/202506271443.G9cAx8PS-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from include/linux/uaccess.h:12, from include/linux/sched/task.h:13, from include/linux/sched/signal.h:9, from include/linux/rcuwait.h:6, from include/linux/percpu-rwsem.h:7, from include/linux/fs.h:34, from include/linux/compat.h:17, from drivers/vhost/net.c:8: arch/csky/include/asm/uaccess.h: In function '__get_user_fn.constprop': >> arch/csky/include/asm/uaccess.h:147:9: warning: 'retval' is used uninitialized [-Wuninitialized] 147 | __asm__ __volatile__( \ | ^~~~~~~ arch/csky/include/asm/uaccess.h:187:17: note: in expansion of macro '__get_user_asm_64' 187 | __get_user_asm_64(x, ptr, retval); | ^~~~~~~~~~~~~~~~~ arch/csky/include/asm/uaccess.h:170:13: note: 'retval' was declared here 170 | int retval; | ^~~~~~ vim +/retval +147 arch/csky/include/asm/uaccess.h da551281947cb2c Guo Ren 2018-09-05 141 e58a41c2226847f Guo Ren 2021-04-21 142 #define __get_user_asm_64(x, ptr, err) \ da551281947cb2c Guo Ren 2018-09-05 143 do { \ da551281947cb2c Guo Ren 2018-09-05 144 int tmp; \ e58a41c2226847f Guo Ren 2021-04-21 145 int errcode; \ e58a41c2226847f Guo Ren 2021-04-21 146 \ e58a41c2226847f Guo Ren 2021-04-21 @147 __asm__ __volatile__( \ e58a41c2226847f Guo Ren 2021-04-21 148 "1: ldw %3, (%2, 0) \n" \ da551281947cb2c Guo Ren 2018-09-05 149 " stw %3, (%1, 0) \n" \ e58a41c2226847f Guo Ren 2021-04-21 150 "2: ldw %3, (%2, 4) \n" \ e58a41c2226847f Guo Ren 2021-04-21 151 " stw %3, (%1, 4) \n" \ e58a41c2226847f Guo Ren 2021-04-21 152 " br 4f \n" \ e58a41c2226847f Guo Ren 2021-04-21 153 "3: mov %0, %4 \n" \ e58a41c2226847f Guo Ren 2021-04-21 154 " br 4f \n" \ da551281947cb2c Guo Ren 2018-09-05 155 ".section __ex_table, \"a\" \n" \ da551281947cb2c Guo Ren 2018-09-05 156 ".align 2 \n" \ e58a41c2226847f Guo Ren 2021-04-21 157 ".long 1b, 3b \n" \ e58a41c2226847f Guo Ren 2021-04-21 158 ".long 2b, 3b \n" \ da551281947cb2c Guo Ren 2018-09-05 159 ".previous \n" \ e58a41c2226847f Guo Ren 2021-04-21 160 "4: \n" \ e58a41c2226847f Guo Ren 2021-04-21 161 : "=r"(err), "=r"(x), "=r"(ptr), \ e58a41c2226847f Guo Ren 2021-04-21 162 "=r"(tmp), "=r"(errcode) \ e58a41c2226847f Guo Ren 2021-04-21 163 : "0"(err), "1"(x), "2"(ptr), "3"(0), \ e58a41c2226847f Guo Ren 2021-04-21 164 "4"(-EFAULT) \ da551281947cb2c Guo Ren 2018-09-05 165 : "memory"); \ da551281947cb2c Guo Ren 2018-09-05 166 } while (0) da551281947cb2c Guo Ren 2018-09-05 167 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki