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SubjectRe: [PATCH 5/6] kexec: add helper __crash_shrink_memory()
Hi Zhen,

kernel test robot noticed the following build warnings:

[auto build test WARNING on akpm-mm/mm-everything]
[also build test WARNING on linus/master v6.4-rc3 next-20230525]
[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/Zhen-Lei/kexec-fix-a-memory-leak-in-crash_shrink_memory/20230527-203821
base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link: https://lore.kernel.org/r/20230527123439.772-6-thunder.leizhen%40huawei.com
patch subject: [PATCH 5/6] kexec: add helper __crash_shrink_memory()
config: x86_64-randconfig-s033-20230528 (https://download.01.org/0day-ci/archive/20230528/202305281410.FdGZvhsb-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-12) 11.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.4-39-gce1a6720-dirty
# https://github.com/intel-lab-lkp/linux/commit/dea97cef503d26e05d0e11818ae44176056ddf64
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Zhen-Lei/kexec-fix-a-memory-leak-in-crash_shrink_memory/20230527-203821
git checkout dea97cef503d26e05d0e11818ae44176056ddf64
# 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 olddefconfig
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202305281410.FdGZvhsb-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> kernel/kexec_core.c:1108:5: sparse: sparse: symbol '__crash_shrink_memory' was not declared. Should it be static?

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

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