Re: [PATCH 5/6] kexec: add helper __crash_shrink_memory()

From: kernel test robot
Date: Sun May 28 2023 - 02:28:23 EST

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]

base: mm-everything
patch link:
patch subject: [PATCH 5/6] kexec: add helper __crash_shrink_memory()
config: x86_64-randconfig-s033-20230528 (
compiler: gcc-11 (Debian 11.3.0-12) 11.3.0
# apt-get install sparse
# sparse version: v0.6.4-39-gce1a6720-dirty
git remote add linux-review
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@xxxxxxxxx>
| Closes:

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?

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