Hi Lorenz, kernel test robot noticed the following build errors: [auto build test ERROR on 25085b4e9251c77758964a8e8651338972353642] url: https://github.com/intel-lab-lkp/linux/commits/Lorenz-Bauer/net-export-inet_lookup_reuseport-and-inet6_lookup_reuseport/20230613-181619 base: 25085b4e9251c77758964a8e8651338972353642 patch link: https://lore.kernel.org/r/20230613-so-reuseport-v2-5-b7c69a342613%40isovalent.com patch subject: [PATCH bpf-next v2 5/6] bpf, net: Support SO_REUSEPORT sockets with bpf_sk_assign config: arm-randconfig-r016-20230612 (https://download.01.org/0day-ci/archive/20230614/202306140012.hLncDFR5-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) reproduce (this is a W=1 build): mkdir -p ~/bin 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 git checkout 25085b4e9251c77758964a8e8651338972353642 b4 shazam https://lore.kernel.org/r/20230613-so-reuseport-v2-5-b7c69a342613@xxxxxxxxxxxxx # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=arm olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash 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/202306140012.hLncDFR5-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>, old ones prefixed by <<): WARNING: modpost: lib/test_user_copy.o: section mismatch in reference: (unknown) (section: .text.fixup) -> .Ltmp1 (section: .init.text) WARNING: modpost: lib/test_user_copy.o: section mismatch in reference: (unknown) (section: .text.fixup) -> .Ltmp4 (section: .init.text) WARNING: modpost: lib/test_user_copy.o: section mismatch in reference: (unknown) (section: .text.fixup) -> .Ltmp7 (section: .init.text) WARNING: modpost: lib/test_user_copy.o: section mismatch in reference: (unknown) (section: .text.fixup) -> .Ltmp10 (section: .init.text) WARNING: modpost: lib/test_user_copy.o: section mismatch in reference: (unknown) (section: .text.fixup) -> .Ltmp13 (section: .init.text) WARNING: modpost: lib/test_user_copy.o: section mismatch in reference: (unknown) (section: .text.fixup) -> .Ltmp16 (section: .init.text) WARNING: modpost: lib/test_user_copy.o: section mismatch in reference: (unknown) (section: .text.fixup) -> .Ltmp19 (section: .init.text) WARNING: modpost: lib/test_user_copy.o: section mismatch in reference: (unknown) (section: .text.fixup) -> .Ltmp22 (section: .init.text) WARNING: modpost: lib/test_user_copy.o: section mismatch in reference: (unknown) (section: .text.fixup) -> .Ltmp25 (section: .init.text) WARNING: modpost: lib/test_user_copy.o: section mismatch in reference: (unknown) (section: .text.fixup) -> .Ltmp28 (section: .init.text) WARNING: modpost: lib/test_user_copy.o: section mismatch in reference: (unknown) (section: .text.fixup) -> .Ltmp31 (section: .init.text) WARNING: modpost: lib/test_user_copy.o: section mismatch in reference: (unknown) (section: .text.fixup) -> .Ltmp34 (section: .init.text) >> ERROR: modpost: "inet_ehashfn" [net/dccp/dccp_ipv4.ko] undefined! -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki