From: kernel test robot <lkp@intel.com>
To: Xuan Zhuo <xuanzhuo@linux.alibaba.com>, virtualization@lists.linux.dev
Cc: oe-kbuild-all@lists.linux.dev,
"Michael S. Tsirkin" <mst@redhat.com>,
Jason Wang <jasowang@redhat.com>,
Xuan Zhuo <xuanzhuo@linux.alibaba.com>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
netdev@vger.kernel.org
Subject: Re: [PATCH vhost v1 4/7] virtio_net: big mode support premapped
Date: Mon, 22 Apr 2024 13:40:27 +0800 [thread overview]
Message-ID: <202404221325.SX5ChRGP-lkp@intel.com> (raw)
In-Reply-To: <20240422015403.72526-5-xuanzhuo@linux.alibaba.com>
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 v6.9-rc5 next-20240419]
[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_ring-introduce-dma-map-api-for-page/20240422-101017
base: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next
patch link: https://lore.kernel.org/r/20240422015403.72526-5-xuanzhuo%40linux.alibaba.com
patch subject: [PATCH vhost v1 4/7] virtio_net: big mode support premapped
config: sh-allmodconfig (https://download.01.org/0day-ci/archive/20240422/202404221325.SX5ChRGP-lkp@intel.com/config)
compiler: sh4-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240422/202404221325.SX5ChRGP-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/202404221325.SX5ChRGP-lkp@intel.com/
All warnings (new ones prefixed by >>):
drivers/net/virtio_net.c: In function 'page_chain_get_dma':
>> drivers/net/virtio_net.c:468:30: warning: left shift count >= width of type [-Wshift-count-overflow]
468 | return (addr << 32) + p->dma_addr;
| ^~
vim +468 drivers/net/virtio_net.c
461
462 static dma_addr_t page_chain_get_dma(struct page *p)
463 {
464 dma_addr_t addr;
465
466 if (sizeof(dma_addr_t) > sizeof(unsigned long)) {
467 addr = p->pp_magic;
> 468 return (addr << 32) + p->dma_addr;
469 } else {
470 return p->dma_addr;
471 }
472 }
473
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next prev parent reply other threads:[~2024-04-22 5:40 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-22 1:53 [PATCH vhost v1 0/7] virtio_net: rx enable premapped mode by default Xuan Zhuo
2024-04-22 1:53 ` [PATCH vhost v1 1/7] virtio_ring: introduce dma map api for page Xuan Zhuo
2024-04-22 1:53 ` [PATCH vhost v1 2/7] virtio_ring: enable premapped mode whatever use_dma_api Xuan Zhuo
2024-04-22 1:53 ` [PATCH vhost v1 3/7] virtio_net: replace private by pp struct inside page Xuan Zhuo
2024-04-22 1:54 ` [PATCH vhost v1 4/7] virtio_net: big mode support premapped Xuan Zhuo
2024-04-22 5:40 ` kernel test robot [this message]
2024-04-22 1:54 ` [PATCH vhost v1 5/7] virtio_net: enable premapped by default Xuan Zhuo
2024-04-22 1:54 ` [PATCH vhost v1 6/7] virtio_net: rx remove premapped failover code Xuan Zhuo
2024-04-22 1:54 ` [PATCH vhost v1 7/7] virtio_net: remove the misleading comment Xuan Zhuo
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