linux-kernel - Re: [PATCH RESEND 6/6] memcontrol-v1: add ksm_profit in cgroup/memory.ksm

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Message-ID: <202504231523.owjrO2Yy-lkp@intel.com>
Date: Wed, 23 Apr 2025 16:21:32 +0800
From: kernel test robot <lkp@...el.com>
To: xu xin <xu.xin.sc@...il.com>, xu.xin16@....com.cn
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	akpm@...ux-foundation.org, david@...hat.com,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, wang.yaxin@....com.cn, yang.yang29@....com.cn
Subject: Re: [PATCH RESEND 6/6] memcontrol-v1: add ksm_profit in
 cgroup/memory.ksm_stat

Hi xu,

kernel test robot noticed the following build errors:

[auto build test ERROR on akpm-mm/mm-everything]
[also build test ERROR on linus/master v6.15-rc3 next-20250422]
[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/xu-xin/memcontrol-rename-mem_cgroup_scan_tasks/20250422-231623
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/20250422112251.3231599-1-xu.xin16%40zte.com.cn
patch subject: [PATCH RESEND 6/6] memcontrol-v1: add ksm_profit in cgroup/memory.ksm_stat
config: i386-buildonly-randconfig-006-20250423 (https://download.01.org/0day-ci/archive/20250423/202504231523.owjrO2Yy-lkp@intel.com/config)
compiler: clang version 20.1.2 (https://github.com/llvm/llvm-project 58df0ef89dd64126512e4ee27b4ac3fd8ddf6247)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250423/202504231523.owjrO2Yy-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/202504231523.owjrO2Yy-lkp@intel.com/

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: ksm_process_profit
   >>> referenced by memcontrol-v1.c:1843 (mm/memcontrol-v1.c:1843)
   >>>               mm/memcontrol-v1.o:(evaluate_memcg_ksm_stat) in archive vmlinux.a

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