Hi Hou, Thank you for the patch! Yet something to improve: [auto build test ERROR on bpf-next/master] url: https://github.com/intel-lab-lkp/linux/commits/Hou-Tao/Add-support-for-qp-trie-map/20220917-231450 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master config: arm-randconfig-r002-20220917 (https://download.01.org/0day-ci/archive/20220918/202209180207.PvS9ya46-lkp@xxxxxxxxx/config) compiler: arm-linux-gnueabi-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/1995ae6874ef9089b4eee12c00ba9c5af264b8bc git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Hou-Tao/Add-support-for-qp-trie-map/20220917-231450 git checkout 1995ae6874ef9089b4eee12c00ba9c5af264b8bc # 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=arm 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 >>): arm-linux-gnueabi-ld: kernel/bpf/syscall.o: in function `bpf_copy_to_dynptr_ukey': >> kernel/bpf/syscall.c:1368: undefined reference to `__get_user_bad' pahole: .tmp_vmlinux.btf: No such file or directory .btf.vmlinux.bin.o: file not recognized: file format not recognized vim +1368 kernel/bpf/syscall.c 1361 1362 static int bpf_copy_to_dynptr_ukey(struct bpf_dynptr_user __user *uptr, 1363 struct bpf_dynptr_kern *kptr) 1364 { 1365 unsigned int size; 1366 u64 udata; 1367 > 1368 if (get_user(udata, &uptr->data)) 1369 return -EFAULT; 1370 1371 /* Also zeroing the reserved field in uptr */ 1372 size = bpf_dynptr_get_size(kptr); 1373 if (copy_to_user(u64_to_user_ptr(udata), kptr->data + kptr->offset, size) || 1374 put_user(size, &uptr->size) || put_user(0, &uptr->size + 1)) 1375 return -EFAULT; 1376 1377 return 0; 1378 } 1379 -- 0-DAY CI Kernel Test Service https://01.org/lkp
