Hi Menglong, kernel test robot noticed the following build errors: [auto build test ERROR on bpf-next/master] url: https://github.com/intel-lab-lkp/linux/commits/Menglong-Dong/fprobe-use-rhashtable/20250728-121631 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master patch link: https://lore.kernel.org/r/20250728041252.441040-2-dongml2%40chinatelecom.cn patch subject: [PATCH bpf-next 1/4] fprobe: use rhashtable config: loongarch-allmodconfig (https://download.01.org/0day-ci/archive/20250729/202507291147.Fov8pl4N-lkp@xxxxxxxxx/config) compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250729/202507291147.Fov8pl4N-lkp@xxxxxxxxx/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 <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202507291147.Fov8pl4N-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from kernel/trace/fprobe.c:8: >> include/linux/fprobe.h:29:20: error: field has incomplete type 'struct rhash_head' 29 | struct rhash_head hlist; | ^ include/linux/fprobe.h:29:9: note: forward declaration of 'struct rhash_head' 29 | struct rhash_head hlist; | ^ >> kernel/trace/fprobe.c:71:17: error: initializer element is not a compile-time constant 71 | .key_offset = offsetof(struct fprobe_hlist_node, addr), | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/stddef.h:16:32: note: expanded from macro 'offsetof' 16 | #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 2 errors generated. -- In file included from kernel/trace/trace_fprobe.c:9: >> include/linux/fprobe.h:29:20: error: field has incomplete type 'struct rhash_head' 29 | struct rhash_head hlist; | ^ include/linux/fprobe.h:29:9: note: forward declaration of 'struct rhash_head' 29 | struct rhash_head hlist; | ^ 1 error generated. vim +29 include/linux/fprobe.h 11 12 struct fprobe; 13 typedef int (*fprobe_entry_cb)(struct fprobe *fp, unsigned long entry_ip, 14 unsigned long ret_ip, struct ftrace_regs *regs, 15 void *entry_data); 16 17 typedef void (*fprobe_exit_cb)(struct fprobe *fp, unsigned long entry_ip, 18 unsigned long ret_ip, struct ftrace_regs *regs, 19 void *entry_data); 20 21 /** 22 * struct fprobe_hlist_node - address based hash list node for fprobe. 23 * 24 * @hlist: The hlist node for address search hash table. 25 * @addr: One of the probing address of @fp. 26 * @fp: The fprobe which owns this. 27 */ 28 struct fprobe_hlist_node { > 29 struct rhash_head hlist; 30 unsigned long addr; 31 struct fprobe *fp; 32 }; 33 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
