Hi Jacob, kernel test robot noticed the following build warnings: [auto build test WARNING on a84e8c05f58305dfa808bc5465c5175c29d7c9b6] url: https://github.com/intel-lab-lkp/linux/commits/Jacob-Keller/lib-packing-create-__pack-and-__unpack-variants-without-error-checking/20241109-093307 base: a84e8c05f58305dfa808bc5465c5175c29d7c9b6 patch link: https://lore.kernel.org/r/20241108-packing-pack-fields-and-ice-implementation-v4-3-81a9f42c30e5%40intel.com patch subject: [PATCH net-next v4 3/9] lib: packing: add pack_fields() and unpack_fields() config: um-allnoconfig (https://download.01.org/0day-ci/archive/20241109/202411091400.YHOiIq55-lkp@xxxxxxxxx/config) compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241109/202411091400.YHOiIq55-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/202411091400.YHOiIq55-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> scripts/mod/packed_fields.c:135:29: warning: format specifies type 'size_t' (aka 'unsigned long') but the argument has type 'Elf32_Word' (aka 'unsigned int') [-Wformat] 134 | error("[%s.ko] \"%s\" has size %zu which is not a multiple of the field size (%zu)\n", | ~~~ | %u 135 | mod->name, symname, sym->st_size, field_size); | ^~~~~~~~~~~~ scripts/mod/modpost.h:207:54: note: expanded from macro 'error' 207 | #define error(fmt, args...) modpost_log(true, fmt, ##args) | ~~~ ^~~~ 1 warning generated. -- >> scripts/mod/packed_fields.c:135:29: warning: format specifies type 'size_t' (aka 'unsigned long') but the argument has type 'Elf32_Word' (aka 'unsigned int') [-Wformat] 134 | error("[%s.ko] \"%s\" has size %zu which is not a multiple of the field size (%zu)\n", | ~~~ | %u 135 | mod->name, symname, sym->st_size, field_size); | ^~~~~~~~~~~~ scripts/mod/modpost.h:207:54: note: expanded from macro 'error' 207 | #define error(fmt, args...) modpost_log(true, fmt, ##args) | ~~~ ^~~~ 1 warning generated. vim +135 scripts/mod/packed_fields.c 99 100 void handle_packed_field_symbol(struct module *mod, struct elf_info *info, 101 Elf_Sym *sym, const char *symname) 102 { 103 unsigned int secindex = get_secindex(info, sym); 104 struct packed_field_elem elem = {}, prev = {}; 105 enum element_order order = FIRST_ELEMENT; 106 enum field_type type = UNKNOWN_SECTION; 107 size_t field_size, count; 108 const void *data, *ptr; 109 const char *section; 110 111 /* Skip symbols without a name */ 112 if (*symname == '\0') 113 return; 114 115 /* Skip symbols with invalid sections */ 116 if (secindex >= info->num_sections) 117 return; 118 119 section = sec_name(info, secindex); 120 121 if (strcmp(section, ".rodata.packed_fields_s") == 0) 122 type = PACKED_FIELD_S; 123 else if (strcmp(section, ".rodata.packed_fields_m") == 0) 124 type = PACKED_FIELD_M; 125 126 /* Other sections don't relate to packed fields */ 127 if (type == UNKNOWN_SECTION) 128 return; 129 130 field_size = field_type_to_size(type); 131 132 /* check that the data is a multiple of the size */ 133 if (sym->st_size % field_size != 0) { 134 error("[%s.ko] \"%s\" has size %zu which is not a multiple of the field size (%zu)\n", > 135 mod->name, symname, sym->st_size, field_size); -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
