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SubjectRe: [PATCH v2 6/8] rcuscale: Add test for using call_rcu_lazy() to emulate kfree_rcu()
Hi "Joel,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v5.19-rc3 next-20220622]
[cannot apply to paulmck-rcu/dev]
[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/intel-lab-lkp/linux/commits/Joel-Fernandes-Google/Implement-call_rcu_lazy-and-miscellaneous-fixes/20220623-065447
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git de5c208d533a46a074eb46ea17f672cc005a7269
config: x86_64-randconfig-s022 (https://download.01.org/0day-ci/archive/20220623/202206231529.kLjzriV0-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.4-31-g4880bd19-dirty
# https://github.com/intel-lab-lkp/linux/commit/6c59cb940f39b882c20e6858c41df7c1470b930a
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Joel-Fernandes-Google/Implement-call_rcu_lazy-and-miscellaneous-fixes/20220623-065447
git checkout 6c59cb940f39b882c20e6858c41df7c1470b930a
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 SHELL=/bin/bash kernel/rcu/

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


sparse warnings: (new ones prefixed by >>)
>> kernel/rcu/rcuscale.c:663:6: sparse: sparse: symbol 'kfree_rcu_lazy' was not declared. Should it be static?
>> kernel/rcu/rcuscale.c:786:15: sparse: sparse: symbol 'jiffies_at_lazy_cb' was not declared. Should it be static?
>> kernel/rcu/rcuscale.c:787:17: sparse: sparse: symbol 'lazy_test1_rh' was not declared. Should it be static?
>> kernel/rcu/rcuscale.c:788:5: sparse: sparse: symbol 'rcu_lazy_test1_cb_called' was not declared. Should it be static?
>> kernel/rcu/rcuscale.c:789:6: sparse: sparse: symbol 'call_rcu_lazy_test1' was not declared. Should it be static?

--
0-DAY CI Kernel Test Service
https://01.org/lkp

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