Hi Mercier", Thank you for the patch! Yet something to improve: [auto build test ERROR on 2241ab53cbb5cdb08a6b2d4688feb13971058f65] url: https://github.com/intel-lab-lkp/linux/commits/T-J-Mercier/memcg-Track-exported-dma-buffers/20230124-032017 base: 2241ab53cbb5cdb08a6b2d4688feb13971058f65 patch link: https://lore.kernel.org/r/20230123191728.2928839-4-tjmercier%40google.com patch subject: [PATCH v2 3/4] binder: Add flags to relinquish ownership of fds config: x86_64-randconfig-a016-20230123 (https://download.01.org/0day-ci/archive/20230125/202301251234.klClMpZF-lkp@xxxxxxxxx/config) compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1) 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 # https://github.com/intel-lab-lkp/linux/commit/41e80f59d1b70691eefc0490e7f1df800cead9f2 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review T-J-Mercier/memcg-Track-exported-dma-buffers/20230124-032017 git checkout 41e80f59d1b70691eefc0490e7f1df800cead9f2 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 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> All errors (new ones prefixed by >>): >> ld.lld: error: undefined symbol: dma_buf_transfer_charge >>> referenced by binder.c:2280 (drivers/android/binder.c:2280) >>> drivers/android/binder.o:(binder_translate_fd) in archive vmlinux.a -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests