Re: [PATCH] mm: Free per cpu pages async to shorten program exit time

kernel test robot
2021-10-08T11:27:50Z

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Hi,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linux/master]
[also build test ERROR on linus/master v5.15-rc4]
[cannot apply to hnaz-mm/master next-20210922]
[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]

url: https://github.com/0day-ci/linux/commits/ultrachin-163-com/mm-Free-per-cpu-pages-async-to-shorten-program-exit-time/20211008-145835
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 5816b3e6577eaa676ceb00a848f0fd65fe2adc29
config: nios2-randconfig-r004-20211008 (attached as .config)
compiler: nios2-linux-gcc (GCC) 11.2.0
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/0day-ci/linux/commit/3e55b36596eb3a798c6f649e5e1c0f5eac8522b3
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review ultrachin-163-com/mm-Free-per-cpu-pages-async-to-shorten-program-exit-time/20211008-145835
git checkout 3e55b36596eb3a798c6f649e5e1c0f5eac8522b3
# save the attached .config to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=nios2 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

kernel/exit.c: In function 'delayed_put_task_struct':
>> kernel/exit.c:170:31: error: 'struct task_struct' has no member named 'cpu'
170 | unsigned int cpu = tsk->cpu;
| ^~
kernel/exit.c: At top level:
kernel/exit.c:1812:13: warning: no previous prototype for 'abort' [-Wmissing-prototypes]
1812 | __weak void abort(void)
| ^~~~~

vim +170 kernel/exit.c

166
167 static void delayed_put_task_struct(struct rcu_head *rhp)
168 {
169 struct task_struct *tsk = container_of(rhp, struct task_struct, rcu);
> 170 unsigned int cpu = tsk->cpu;
171
172 perf_event_delayed_put(tsk);
173 trace_sched_process_free(tsk);
174 put_task_struct(tsk);
175 kfreepcp_set_run(cpu);
176 }
177

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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