[jpoimboe:klp-build 60/63] error: objtool: --checksum not supported; install xxhash-devel and recompile

[jpoimboe:klp-build 60/63] error: objtool: --checksum not supported; install xxhash-devel and recompile

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/jpoimboe/linux.git klp-build
head:   262d11ae2557639839ede7312ba834817615e0a8
commit: 2b990d8d7a82905cd5dd6cca2286b6cf72da8e0f [60/63] livepatch/klp-build: Introduce klp-build script for generating livepatch modules
config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20250918/202509181111.05E8V2hw-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
rustc: rustc 1.88.0 (6b00bc388 2025-06-23)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250918/202509181111.05E8V2hw-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202509181111.05E8V2hw-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from drivers/char/tpm/tpm_i2c_nuvoton.c:24:
   In file included from drivers/char/tpm/tpm.h:28:
   include/linux/tpm_eventlog.h:167:6: warning: variable 'mapping_size' set but not used [-Wunused-but-set-variable]
     167 |         int mapping_size;
         |             ^
   1 warning generated.
>> error: objtool: --checksum not supported; install xxhash-devel and recompile

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