Hi Ben, kernel test robot noticed the following build warnings: [auto build test WARNING on bpf-next/master] [also build test WARNING on bpf/master linus/master v6.7-rc2 next-20231122] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Ben-Dooks/bpf-add-__printf-to-for-printf-fmt-strings/20231122-231149 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master patch link: https://lore.kernel.org/r/20231122133656.290475-1-ben.dooks%40codethink.co.uk patch subject: [PATCH] bpf: add __printf() to for printf fmt strings config: x86_64-randconfig-161-20231123 (https://download.01.org/0day-ci/archive/20231123/202311231030.yBuPn92M-lkp@xxxxxxxxx/config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231123/202311231030.yBuPn92M-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/202311231030.yBuPn92M-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): kernel/bpf/btf.c: In function 'btf_type_seq_show_flags': >> kernel/bpf/btf.c:7100:14: warning: assignment left-hand side might be a candidate for a format attribute [-Wsuggest-attribute=format] 7100 | sseq.showfn = btf_seq_show; | ^ kernel/bpf/btf.c: In function 'btf_type_snprintf_show': kernel/bpf/btf.c:7151:24: warning: assignment left-hand side might be a candidate for a format attribute [-Wsuggest-attribute=format] 7151 | ssnprintf.show.showfn = btf_snprintf_show; | ^ vim +7100 kernel/bpf/btf.c 31d0bc81637d8d Alan Maguire 2020-09-28 7093 eb411377aed9e2 Alan Maguire 2020-09-28 7094 int btf_type_seq_show_flags(const struct btf *btf, u32 type_id, 31d0bc81637d8d Alan Maguire 2020-09-28 7095 void *obj, struct seq_file *m, u64 flags) 31d0bc81637d8d Alan Maguire 2020-09-28 7096 { 31d0bc81637d8d Alan Maguire 2020-09-28 7097 struct btf_show sseq; 31d0bc81637d8d Alan Maguire 2020-09-28 7098 31d0bc81637d8d Alan Maguire 2020-09-28 7099 sseq.target = m; 31d0bc81637d8d Alan Maguire 2020-09-28 @7100 sseq.showfn = btf_seq_show; 31d0bc81637d8d Alan Maguire 2020-09-28 7101 sseq.flags = flags; 31d0bc81637d8d Alan Maguire 2020-09-28 7102 31d0bc81637d8d Alan Maguire 2020-09-28 7103 btf_type_show(btf, type_id, obj, &sseq); 31d0bc81637d8d Alan Maguire 2020-09-28 7104 31d0bc81637d8d Alan Maguire 2020-09-28 7105 return sseq.state.status; 31d0bc81637d8d Alan Maguire 2020-09-28 7106 } 31d0bc81637d8d Alan Maguire 2020-09-28 7107 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
