Hi Pingfan, kernel test robot noticed the following build errors:
[auto build test ERROR on c17b750b3ad9f45f2b6f7e6f7f4679844244f0b9] url: https://github.com/intel-lab-lkp/linux/commits/Pingfan-Liu/kexec_file-Make-kexec_image_load_default-global-visible/20250819-093420 base: c17b750b3ad9f45f2b6f7e6f7f4679844244f0b9 patch link: https://lore.kernel.org/r/20250819012428.6217-11-piliu%40redhat.com patch subject: [PATCHv5 10/12] arm64/kexec: Add PE image format support config: arm64-randconfig-001-20250819 (https://download.01.org/0day-ci/archive/20250820/202508200205.qen1adeu-...@intel.com/config) compiler: aarch64-linux-gcc (GCC) 14.3.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250820/202508200205.qen1adeu-...@intel.com/reproduce) 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 <l...@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202508200205.qen1adeu-...@intel.com/ All errors (new ones prefixed by >>): In file included from kernel/kexec_bpf/kexec_pe_parser_bpf.lskel.h:6, from kernel/kexec_pe_image.c:25: tools/lib/bpf/skel_internal.h: In function 'skel_finalize_map_data': tools/lib/bpf/skel_internal.h:155:15: error: implicit declaration of function 'bpf_map_get'; did you mean 'bpf_map_put'? [-Wimplicit-function-declaration] 155 | map = bpf_map_get(fd); | ^~~~~~~~~~~ | bpf_map_put >> tools/lib/bpf/skel_internal.h:155:13: error: assignment to 'struct bpf_map >> *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 155 | map = bpf_map_get(fd); | ^ kernel/kexec_pe_image.c: In function 'kexec_bpf_prog_run_init': kernel/kexec_pe_image.c:267:16: error: implicit declaration of function 'register_btf_fmodret_id_set'; did you mean 'register_btf_kfunc_id_set'? [-Wimplicit-function-declaration] 267 | return register_btf_fmodret_id_set(&kexec_modify_return_set); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ | register_btf_kfunc_id_set kernel/kexec_pe_image.c: In function 'pe_image_load': kernel/kexec_pe_image.c:312:44: warning: variable 'cmdline_sz' set but not used [-Wunused-but-set-variable] 312 | unsigned long linux_sz, initrd_sz, cmdline_sz, bpf_sz; | ^~~~~~~~~~ Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for KEXEC_PE_IMAGE Depends on [n]: KEXEC_FILE [=y] && DEBUG_INFO_BTF [=n] && BPF_SYSCALL [=n] Selected by [y]: - ARCH_SELECTS_KEXEC_FILE [=y] && KEXEC_FILE [=y] vim +155 tools/lib/bpf/skel_internal.h 67234743736a6a Alexei Starovoitov 2021-05-13 143 6fe65f1b4db3ff Alexei Starovoitov 2022-02-09 144 static inline void *skel_finalize_map_data(__u64 *init_val, size_t mmap_sz, int flags, int fd) 6fe65f1b4db3ff Alexei Starovoitov 2022-02-09 145 { 6fe65f1b4db3ff Alexei Starovoitov 2022-02-09 146 struct bpf_map *map; 6fe65f1b4db3ff Alexei Starovoitov 2022-02-09 147 void *addr = NULL; 6fe65f1b4db3ff Alexei Starovoitov 2022-02-09 148 6fe65f1b4db3ff Alexei Starovoitov 2022-02-09 149 kvfree((void *) (long) *init_val); 6fe65f1b4db3ff Alexei Starovoitov 2022-02-09 150 *init_val = ~0ULL; 6fe65f1b4db3ff Alexei Starovoitov 2022-02-09 151 6fe65f1b4db3ff Alexei Starovoitov 2022-02-09 152 /* At this point bpf_load_and_run() finished without error and 6fe65f1b4db3ff Alexei Starovoitov 2022-02-09 153 * 'fd' is a valid bpf map FD. All sanity checks below should succeed. 6fe65f1b4db3ff Alexei Starovoitov 2022-02-09 154 */ 6fe65f1b4db3ff Alexei Starovoitov 2022-02-09 @155 map = bpf_map_get(fd); 6fe65f1b4db3ff Alexei Starovoitov 2022-02-09 156 if (IS_ERR(map)) 6fe65f1b4db3ff Alexei Starovoitov 2022-02-09 157 return NULL; 6fe65f1b4db3ff Alexei Starovoitov 2022-02-09 158 if (map->map_type != BPF_MAP_TYPE_ARRAY) 6fe65f1b4db3ff Alexei Starovoitov 2022-02-09 159 goto out; 6fe65f1b4db3ff Alexei Starovoitov 2022-02-09 160 addr = ((struct bpf_array *)map)->value; 6fe65f1b4db3ff Alexei Starovoitov 2022-02-09 161 /* the addr stays valid, since FD is not closed */ 6fe65f1b4db3ff Alexei Starovoitov 2022-02-09 162 out: 6fe65f1b4db3ff Alexei Starovoitov 2022-02-09 163 bpf_map_put(map); 6fe65f1b4db3ff Alexei Starovoitov 2022-02-09 164 return addr; 6fe65f1b4db3ff Alexei Starovoitov 2022-02-09 165 } 6fe65f1b4db3ff Alexei Starovoitov 2022-02-09 166 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
