Hi Peilin, Thank you for the patch! Yet something to improve: [auto build test ERROR on net-next/master] url: https://github.com/intel-lab-lkp/linux/commits/Peilin-Ye/net-sock-Introduce-trace_sk_data_ready/20221008-061418 base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 0326074ff4652329f2a1a9c8685104576bd8d131 config: s390-defconfig compiler: s390-linux-gcc (GCC) 12.1.0 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/5f951b832d90c5bfbf98c90e82194c0238c3ac33 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Peilin-Ye/net-sock-Introduce-trace_sk_data_ready/20221008-061418 git checkout 5f951b832d90c5bfbf98c90e82194c0238c3ac33 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot All errors (new ones prefixed by >>, old ones prefixed by <<): ERROR: modpost: "__tracepoint_sk_data_ready" [fs/dlm/dlm.ko] undefined! >> ERROR: modpost: "__traceiter_sk_data_ready" [fs/dlm/dlm.ko] undefined! ERROR: modpost: "__tracepoint_sk_data_ready" [fs/ocfs2/cluster/ocfs2_nodemanager.ko] undefined! >> ERROR: modpost: "__traceiter_sk_data_ready" [fs/ocfs2/cluster/ocfs2_nodemanager.ko] undefined! >> ERROR: modpost: "__tracepoint_sk_data_ready" [drivers/scsi/iscsi_tcp.ko] undefined! >> ERROR: modpost: "__traceiter_sk_data_ready" [drivers/scsi/iscsi_tcp.ko] undefined! >> ERROR: modpost: "__tracepoint_sk_data_ready" [net/sunrpc/sunrpc.ko] undefined! >> ERROR: modpost: "__traceiter_sk_data_ready" [net/sunrpc/sunrpc.ko] undefined! >> ERROR: modpost: "__tracepoint_sk_data_ready" [net/sctp/sctp.ko] undefined! >> ERROR: modpost: "__traceiter_sk_data_ready" [net/sctp/sctp.ko] undefined! WARNING: modpost: suppressed 6 unresolved symbol warnings because there were too many) -- 0-DAY CI Kernel Test Service https://01.org/lkp