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charset=us-ascii Content-Disposition: inline Hi Justin, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: c1336865c4c90fcc649df0435a7c86c30030a723 commit: ad61903add56561b72b49d717c01563cf1535781 realtek: Update the Makefile and Kconfig in the realtek folder date: 7 months ago config: parisc-randconfig-r061-20250417 (https://download.01.org/0day-ci/archive/20250417/202504170659.VvjUV8oN-lkp@intel.com/config) compiler: hppa-linux-gcc (GCC) 8.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250417/202504170659.VvjUV8oN-lkp@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 | Closes: https://lore.kernel.org/oe-kbuild-all/202504170659.VvjUV8oN-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from include/linux/mdio.h:10, from drivers/net/ethernet/realtek/rtase/rtase_main.c:58: In function 'u16_encode_bits', inlined from 'rtase_init_software_variable.isra.45' at drivers/net/ethernet/realtek/rtase/rtase_main.c:1915:13, inlined from 'rtase_init_one' at drivers/net/ethernet/realtek/rtase/rtase_main.c:2111:2: >> include/linux/bitfield.h:178:3: error: call to '__field_overflow' declared with attribute error: value doesn't fit into mask __field_overflow(); \ ^~~~~~~~~~~~~~~~~~ include/linux/bitfield.h:198:2: note: in expansion of macro '____MAKE_OP' ____MAKE_OP(u##size,u##size,,) ^~~~~~~~~~~ include/linux/bitfield.h:200:1: note: in expansion of macro '__MAKE_OP' __MAKE_OP(16) ^~~~~~~~~ vim +178 include/linux/bitfield.h e2192de59e457a Johannes Berg 2023-01-18 120 e2192de59e457a Johannes Berg 2023-01-18 121 /** e2192de59e457a Johannes Berg 2023-01-18 122 * FIELD_PREP_CONST() - prepare a constant bitfield element e2192de59e457a Johannes Berg 2023-01-18 123 * @_mask: shifted mask defining the field's length and position e2192de59e457a Johannes Berg 2023-01-18 124 * @_val: value to put in the field e2192de59e457a Johannes Berg 2023-01-18 125 * e2192de59e457a Johannes Berg 2023-01-18 126 * FIELD_PREP_CONST() masks and shifts up the value. The result should e2192de59e457a Johannes Berg 2023-01-18 127 * be combined with other fields of the bitfield using logical OR. e2192de59e457a Johannes Berg 2023-01-18 128 * e2192de59e457a Johannes Berg 2023-01-18 129 * Unlike FIELD_PREP() this is a constant expression and can therefore e2192de59e457a Johannes Berg 2023-01-18 130 * be used in initializers. Error checking is less comfortable for this e2192de59e457a Johannes Berg 2023-01-18 131 * version, and non-constant masks cannot be used. e2192de59e457a Johannes Berg 2023-01-18 132 */ e2192de59e457a Johannes Berg 2023-01-18 133 #define FIELD_PREP_CONST(_mask, _val) \ e2192de59e457a Johannes Berg 2023-01-18 134 ( \ e2192de59e457a Johannes Berg 2023-01-18 135 /* mask must be non-zero */ \ e2192de59e457a Johannes Berg 2023-01-18 136 BUILD_BUG_ON_ZERO((_mask) == 0) + \ e2192de59e457a Johannes Berg 2023-01-18 137 /* check if value fits */ \ e2192de59e457a Johannes Berg 2023-01-18 138 BUILD_BUG_ON_ZERO(~((_mask) >> __bf_shf(_mask)) & (_val)) + \ e2192de59e457a Johannes Berg 2023-01-18 139 /* check if mask is contiguous */ \ e2192de59e457a Johannes Berg 2023-01-18 140 __BF_CHECK_POW2((_mask) + (1ULL << __bf_shf(_mask))) + \ e2192de59e457a Johannes Berg 2023-01-18 141 /* and create the value */ \ e2192de59e457a Johannes Berg 2023-01-18 142 (((typeof(_mask))(_val) << __bf_shf(_mask)) & (_mask)) \ e2192de59e457a Johannes Berg 2023-01-18 143 ) e2192de59e457a Johannes Berg 2023-01-18 144 3e9b3112ec74f1 Jakub Kicinski 2016-08-31 145 /** 3e9b3112ec74f1 Jakub Kicinski 2016-08-31 146 * FIELD_GET() - extract a bitfield element 3e9b3112ec74f1 Jakub Kicinski 2016-08-31 147 * @_mask: shifted mask defining the field's length and position 7240767450d6d8 Masahiro Yamada 2017-10-03 148 * @_reg: value of entire bitfield 3e9b3112ec74f1 Jakub Kicinski 2016-08-31 149 * 3e9b3112ec74f1 Jakub Kicinski 2016-08-31 150 * FIELD_GET() extracts the field specified by @_mask from the 3e9b3112ec74f1 Jakub Kicinski 2016-08-31 151 * bitfield passed in as @_reg by masking and shifting it down. 3e9b3112ec74f1 Jakub Kicinski 2016-08-31 152 */ 3e9b3112ec74f1 Jakub Kicinski 2016-08-31 153 #define FIELD_GET(_mask, _reg) \ 3e9b3112ec74f1 Jakub Kicinski 2016-08-31 154 ({ \ 3e9b3112ec74f1 Jakub Kicinski 2016-08-31 155 __BF_FIELD_CHECK(_mask, _reg, 0U, "FIELD_GET: "); \ 3e9b3112ec74f1 Jakub Kicinski 2016-08-31 156 (typeof(_mask))(((_reg) & (_mask)) >> __bf_shf(_mask)); \ 3e9b3112ec74f1 Jakub Kicinski 2016-08-31 157 }) 3e9b3112ec74f1 Jakub Kicinski 2016-08-31 158 e7d4a95da86e0b Johannes Berg 2018-06-20 159 extern void __compiletime_error("value doesn't fit into mask") 00b0c9b82663ac Al Viro 2017-12-14 160 __field_overflow(void); 00b0c9b82663ac Al Viro 2017-12-14 161 extern void __compiletime_error("bad bitfield mask") 00b0c9b82663ac Al Viro 2017-12-14 162 __bad_mask(void); 00b0c9b82663ac Al Viro 2017-12-14 163 static __always_inline u64 field_multiplier(u64 field) 00b0c9b82663ac Al Viro 2017-12-14 164 { 00b0c9b82663ac Al Viro 2017-12-14 165 if ((field | (field - 1)) & ((field | (field - 1)) + 1)) 00b0c9b82663ac Al Viro 2017-12-14 166 __bad_mask(); 00b0c9b82663ac Al Viro 2017-12-14 167 return field & -field; 00b0c9b82663ac Al Viro 2017-12-14 168 } 00b0c9b82663ac Al Viro 2017-12-14 169 static __always_inline u64 field_mask(u64 field) 00b0c9b82663ac Al Viro 2017-12-14 170 { 00b0c9b82663ac Al Viro 2017-12-14 171 return field / field_multiplier(field); 00b0c9b82663ac Al Viro 2017-12-14 172 } e31a50162feb35 Alex Elder 2020-03-12 173 #define field_max(field) ((typeof(field))field_mask(field)) 00b0c9b82663ac Al Viro 2017-12-14 174 #define ____MAKE_OP(type,base,to,from) \ 00b0c9b82663ac Al Viro 2017-12-14 175 static __always_inline __##type type##_encode_bits(base v, base field) \ 00b0c9b82663ac Al Viro 2017-12-14 176 { \ e7d4a95da86e0b Johannes Berg 2018-06-20 177 if (__builtin_constant_p(v) && (v & ~field_mask(field))) \ 00b0c9b82663ac Al Viro 2017-12-14 @178 __field_overflow(); \ 00b0c9b82663ac Al Viro 2017-12-14 179 return to((v & field_mask(field)) * field_multiplier(field)); \ 00b0c9b82663ac Al Viro 2017-12-14 180 } \ 00b0c9b82663ac Al Viro 2017-12-14 181 static __always_inline __##type type##_replace_bits(__##type old, \ 00b0c9b82663ac Al Viro 2017-12-14 182 base val, base field) \ 00b0c9b82663ac Al Viro 2017-12-14 183 { \ 00b0c9b82663ac Al Viro 2017-12-14 184 return (old & ~to(field)) | type##_encode_bits(val, field); \ 00b0c9b82663ac Al Viro 2017-12-14 185 } \ 00b0c9b82663ac Al Viro 2017-12-14 186 static __always_inline void type##p_replace_bits(__##type *p, \ 00b0c9b82663ac Al Viro 2017-12-14 187 base val, base field) \ 00b0c9b82663ac Al Viro 2017-12-14 188 { \ 00b0c9b82663ac Al Viro 2017-12-14 189 *p = (*p & ~to(field)) | type##_encode_bits(val, field); \ 00b0c9b82663ac Al Viro 2017-12-14 190 } \ 00b0c9b82663ac Al Viro 2017-12-14 191 static __always_inline base type##_get_bits(__##type v, base field) \ 00b0c9b82663ac Al Viro 2017-12-14 192 { \ 00b0c9b82663ac Al Viro 2017-12-14 193 return (from(v) & field)/field_multiplier(field); \ 00b0c9b82663ac Al Viro 2017-12-14 194 } 00b0c9b82663ac Al Viro 2017-12-14 195 #define __MAKE_OP(size) \ 00b0c9b82663ac Al Viro 2017-12-14 196 ____MAKE_OP(le##size,u##size,cpu_to_le##size,le##size##_to_cpu) \ 00b0c9b82663ac Al Viro 2017-12-14 197 ____MAKE_OP(be##size,u##size,cpu_to_be##size,be##size##_to_cpu) \ 00b0c9b82663ac Al Viro 2017-12-14 198 ____MAKE_OP(u##size,u##size,,) 37a3862e123826 Johannes Berg 2018-06-20 199 ____MAKE_OP(u8,u8,,) 00b0c9b82663ac Al Viro 2017-12-14 200 __MAKE_OP(16) 00b0c9b82663ac Al Viro 2017-12-14 201 __MAKE_OP(32) 00b0c9b82663ac Al Viro 2017-12-14 202 __MAKE_OP(64) 00b0c9b82663ac Al Viro 2017-12-14 203 #undef __MAKE_OP 00b0c9b82663ac Al Viro 2017-12-14 204 #undef ____MAKE_OP 00b0c9b82663ac Al Viro 2017-12-14 205 :::::: The code at line 178 was first introduced by commit :::::: 00b0c9b82663ac42e5a09f58ce960f81f29d64ee Add primitives for manipulating bitfields both in host- and fixed-endian. :::::: TO: Al Viro :::::: CC: Al Viro -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki