linux-kernel - Re: [PATCH v2] rcu: Keeping rcu-related kthreads running on housekeeping CPUS

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Date:   Thu, 9 Feb 2023 20:59:16 +0800
From:   kernel test robot <lkp@...el.com>
To:     Zqiang <qiang1.zhang@...el.com>, paulmck@...nel.org,
        frederic@...nel.org, quic_neeraju@...cinc.com,
        joel@...lfernandes.org, qiuxu.zhuo@...el.com
Cc:     oe-kbuild-all@...ts.linux.dev, rcu@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] rcu: Keeping rcu-related kthreads running on
 housekeeping CPUS

Hi Zqiang,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on paulmck-rcu/dev]
[also build test ERROR on next-20230209]
[cannot apply to linus/master v6.2-rc7]
[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/Zqiang/rcu-Keeping-rcu-related-kthreads-running-on-housekeeping-CPUS/20230209-182311
base:   https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev
patch link:    https://lore.kernel.org/r/20230209102730.974465-1-qiang1.zhang%40intel.com
patch subject: [PATCH v2] rcu: Keeping rcu-related kthreads running on housekeeping CPUS
config: arc-randconfig-r024-20230209 (https://download.01.org/0day-ci/archive/20230209/202302092018.kI8rty7k-lkp@intel.com/config)
compiler: arc-elf-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/af15a3ade363b21d823918088623f8564cbd9d08
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Zqiang/rcu-Keeping-rcu-related-kthreads-running-on-housekeeping-CPUS/20230209-182311
        git checkout af15a3ade363b21d823918088623f8564cbd9d08
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202302092018.kI8rty7k-lkp@intel.com

All errors (new ones prefixed by >>):

   arc-elf-ld: kernel/rcu/srcutiny.o: in function `rcu_kthread_setaffinity':
>> srcutiny.c:(.text+0x35c): multiple definition of `rcu_kthread_setaffinity'; kernel/rcu/update.o:update.c:(.text+0x204): first defined here
   arc-elf-ld: kernel/rcu/tiny.o: in function `rcu_kthread_setaffinity':
   tiny.c:(.text+0x164): multiple definition of `rcu_kthread_setaffinity'; kernel/rcu/update.o:update.c:(.text+0x204): first defined here

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