From: kernel test robot <lkp@intel.com>
To: Paolo Abeni <pabeni@redhat.com>, netdev@vger.kernel.org
Cc: oe-kbuild-all@lists.linux.dev,
"Willem de Bruijn" <willemdebruijn.kernel@gmail.com>,
"Jason Wang" <jasowang@redhat.com>,
"Andrew Lunn" <andrew+netdev@lunn.ch>,
"Eric Dumazet" <edumazet@google.com>,
"Jakub Kicinski" <kuba@kernel.org>,
"Michael S. Tsirkin" <mst@redhat.com>,
"Xuan Zhuo" <xuanzhuo@linux.alibaba.com>,
"Eugenio Pérez" <eperezma@redhat.com>,
"Yuri Benditovich" <yuri.benditovich@daynix.com>,
"Akihiko Odaki" <akihiko.odaki@daynix.com>,
"Jonathan Corbet" <corbet@lwn.net>,
kvm@vger.kernel.org, linux-doc@vger.kernel.org
Subject: Re: [PATCH v6 net-next 4/9] vhost-net: allow configuring extended features
Date: Fri, 27 Jun 2025 14:41:58 +0800 [thread overview]
Message-ID: <202506271443.G9cAx8PS-lkp@intel.com> (raw)
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 <lkp@intel.com>
| 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
next prev parent reply other threads:[~2025-06-27 6:42 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-24 14:09 [PATCH v6 net-next 0/9] virtio: introduce GSO over UDP tunnel Paolo Abeni
2025-06-24 14:09 ` [PATCH v6 net-next 1/9] scripts/kernel_doc.py: properly handle VIRTIO_DECLARE_FEATURES Paolo Abeni
2025-06-24 14:09 ` [PATCH v6 net-next 2/9] virtio: introduce extended features Paolo Abeni
2025-06-24 14:09 ` [PATCH v6 net-next 3/9] virtio_pci_modern: allow configuring " Paolo Abeni
2025-06-24 14:09 ` [PATCH v6 net-next 4/9] vhost-net: " Paolo Abeni
2025-06-27 6:41 ` kernel test robot [this message]
2025-06-27 10:28 ` Paolo Abeni
2025-06-27 12:18 ` Michael S. Tsirkin
2025-06-27 12:44 ` Paolo Abeni
2025-06-27 12:47 ` Michael S. Tsirkin
2025-07-04 14:09 ` Paolo Abeni
2025-06-27 13:11 ` Paolo Abeni
2025-06-27 14:36 ` Paolo Abeni
2025-07-06 7:33 ` Michael S. Tsirkin
2025-06-24 14:09 ` [PATCH v6 net-next 5/9] virtio_net: add supports for extended offloads Paolo Abeni
2025-06-24 14:09 ` [PATCH v6 net-next 6/9] net: implement virtio helpers to handle UDP GSO tunneling Paolo Abeni
2025-06-24 14:09 ` [PATCH v6 net-next 7/9] virtio_net: enable gso over UDP tunnel support Paolo Abeni
2025-06-24 14:09 ` [PATCH v6 net-next 8/9] tun: " Paolo Abeni
2025-06-24 14:09 ` [PATCH v6 net-next 9/9] vhost/net: " Paolo Abeni
2025-07-08 7:12 ` [PATCH v6 net-next 0/9] virtio: introduce GSO over UDP tunnel Paolo Abeni
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