Re: [PATCH] arch_topology: Clear LLC sibling when cacheinfo teardown

kernel test robot
2023-03-14T05:08:23Z

config: arm-randconfig-r046-20230312 (https://download.01.org/0day-ci/archive/20230314/202303141252.uMIMFRnT-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 67409911353323ca5edf2049ef0df54132fa1ca7)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install arm cross compiling tool for clang build
# apt-get install binutils-arm-linux-gnueabi
# https://github.com/intel-lab-lkp/linux/commit/a9aca0a81b31b421e3bbfa08fd205a8bec651afe
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Song-Shuai/arch_topology-Clear-LLC-sibling-when-cacheinfo-teardown/20230313-182946
git checkout a9aca0a81b31b421e3bbfa08fd205a8bec651afe
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash drivers/base/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303141252.uMIMFRnT-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/base/cacheinfo.c:818:2: error: call to undeclared function 'clear_llc_topology'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
clear_llc_topology(cpu);
^
1 error generated.