Re: [PATCH v2] genksyms: Support arm64 CRC32 hardware acceleration

[kernel test robot]

Hi Wentao,

kernel test robot noticed the following build warnings:

[auto build test WARNING on linus/master]
[also build test WARNING on v7.1-rc5 next-20260527]
[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/Wentao-Guan/genksyms-Support-arm64-CRC32-hardware-acceleration/20260525-151229
base:   linus/master
patch link:    https://lore.kernel.org/r/20260525070344.1564886-1-guanwentao%40uniontech.com
patch subject: [PATCH v2] genksyms: Support arm64 CRC32 hardware acceleration
config: um-randconfig-002 (https://download.01.org/0day-ci/archive/20260528/202605281815.1Z1xCVpw-lkp@xxxxxxxxx/config)
compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 9409c07de6378507397ecdb6f05f628f58110112)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260528/202605281815.1Z1xCVpw-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202605281815.1Z1xCVpw-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

>> scripts/genksyms/genksyms.c:122:12: warning: variable 'crc32_hw_available' set but not used [-Wunused-but-set-global]
     122 | static int crc32_hw_available;
         |            ^
   1 warning generated.
--
>> scripts/genksyms/genksyms.c:122:12: warning: variable 'crc32_hw_available' set but not used [-Wunused-but-set-global]
     122 | static int crc32_hw_available;
         |            ^
   1 warning generated.


vim +/crc32_hw_available +122 scripts/genksyms/genksyms.c

   118	
   119	/*
   120	 * Architecture-specific CRC32 hardware acceleration.
   121	 */
 > 122	static int crc32_hw_available;
   123	

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