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Message-ID: <202312240155.ow7kvQZO-lkp@intel.com>
Date: Sun, 24 Dec 2023 01:23:30 +0800
From: kernel test robot <lkp@...el.com>
To: Xuan Zhuo <xuanzhuo@...ux.alibaba.com>, netdev@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev, "Michael S. Tsirkin" <mst@...hat.com>,
	Jason Wang <jasowang@...hat.com>,
	Xuan Zhuo <xuanzhuo@...ux.alibaba.com>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	virtualization@...ts.linux.dev
Subject: Re: [PATCH net-next 3/6] virtio_net: support device stats

Hi Xuan,

kernel test robot noticed the following build warnings:

[auto build test WARNING on mst-vhost/linux-next]
[also build test WARNING on linus/master v6.7-rc6]
[cannot apply to net-next/main horms-ipvs/master next-20231222]
[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/Xuan-Zhuo/virtio_net-introduce-device-stats-feature-and-structures/20231222-175505
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next
patch link:    https://lore.kernel.org/r/20231222033021.20649-4-xuanzhuo%40linux.alibaba.com
patch subject: [PATCH net-next 3/6] virtio_net: support device stats
config: arc-haps_hs_defconfig (https://download.01.org/0day-ci/archive/20231224/202312240155.ow7kvQZO-lkp@intel.com/config)
compiler: arc-elf-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231224/202312240155.ow7kvQZO-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202312240155.ow7kvQZO-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from include/linux/virtio_net.h:8,
                    from drivers/net/virtio_net.c:12:
>> include/uapi/linux/virtio_net.h:419:45: warning: left shift count >= width of type [-Wshift-count-overflow]
     419 | #define VIRTIO_NET_STATS_TYPE_CVQ       (1L << 32)
         |                                             ^~
   drivers/net/virtio_net.c:215:17: note: in expansion of macro 'VIRTIO_NET_STATS_TYPE_CVQ'
     215 |                 VIRTIO_NET_STATS_TYPE_##TYPE,                   \
         |                 ^~~~~~~~~~~~~~~~~~~~~~
   drivers/net/virtio_net.c:224:9: note: in expansion of macro 'VIRTNET_DEVICE_STATS_MAP_ITEM'
     224 |         VIRTNET_DEVICE_STATS_MAP_ITEM(CVQ, cvq, CQ),
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +419 include/uapi/linux/virtio_net.h

ba106d1c676c80 Xuan Zhuo 2023-12-22  418  
ba106d1c676c80 Xuan Zhuo 2023-12-22 @419  #define VIRTIO_NET_STATS_TYPE_CVQ       (1L << 32)
ba106d1c676c80 Xuan Zhuo 2023-12-22  420  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

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