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Message-ID: <202404211106.B9pwuFqk-lkp@intel.com>
Date: Sun, 21 Apr 2024 11:43:38 +0800
From: kernel test robot <lkp@...el.com>
To: zhenwei pi <pizhenwei@...edance.com>, linux-kernel@...r.kernel.org,
linux-mm@...ck.org, virtualization@...ts.linux.dev
Cc: oe-kbuild-all@...ts.linux.dev, mst@...hat.com, david@...hat.com,
jasowang@...hat.com, xuanzhuo@...ux.alibaba.com,
akpm@...ux-foundation.org, zhenwei pi <pizhenwei@...edance.com>
Subject: Re: [PATCH 2/3] virtio_balloon: introduce memory allocation stall
counter
Hi zhenwei,
kernel test robot noticed the following build warnings:
[auto build test WARNING on akpm-mm/mm-everything]
[also build test WARNING on linus/master v6.9-rc4 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/zhenwei-pi/virtio_balloon-introduce-oom-kill-invocations/20240418-142934
base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link: https://lore.kernel.org/r/20240418062602.1291391-3-pizhenwei%40bytedance.com
patch subject: [PATCH 2/3] virtio_balloon: introduce memory allocation stall counter
config: i386-randconfig-141-20240421 (https://download.01.org/0day-ci/archive/20240421/202404211106.B9pwuFqk-lkp@intel.com/config)
compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240421/202404211106.B9pwuFqk-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/202404211106.B9pwuFqk-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> drivers/virtio/virtio_balloon.c:324:18: warning: unused variable 'stall' [-Wunused-variable]
324 | long available, stall = 0;
| ^~~~~
1 warning generated.
vim +/stall +324 drivers/virtio/virtio_balloon.c
318
319 static unsigned int update_balloon_stats(struct virtio_balloon *vb)
320 {
321 unsigned long events[NR_VM_EVENT_ITEMS];
322 struct sysinfo i;
323 unsigned int idx = 0;
> 324 long available, stall = 0;
325 unsigned long caches;
326
327 all_vm_events(events);
328 si_meminfo(&i);
329
330 available = si_mem_available();
331 caches = global_node_page_state(NR_FILE_PAGES);
332
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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