tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 7b7a883c7f4de1ee5040bd1c32aabaafde54d209 commit: aab5f6eb05fd382835c042853bb0a44198aba71f [2995/3437] mm/mempolicy: Weighted Interleave Auto-tuning config: sh-randconfig-r051-20250213 (https://download.01.org/0day-ci/archive/20250213/202502131750.RyXsm23v-lkp@xxxxxxxxx/config) compiler: sh4-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250213/202502131750.RyXsm23v-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/202502131750.RyXsm23v-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): sh4-linux-ld: kernel/sched/build_utility.o: in function `housekeeping_any_cpu': kernel/sched/isolation.c:56:(.text+0x5ac): undefined reference to `sched_numa_find_closest' sh4-linux-ld: mm/mempolicy.o: in function `reduce_interleave_weights': >> mm/mempolicy.c:207:(.text+0x460): undefined reference to `__udivdi3' vim +207 mm/mempolicy.c 166 167 /* 168 * Convert bandwidth values into weighted interleave weights. 169 * Call with iw_table_lock. 170 */ 171 static void reduce_interleave_weights(uint64_t *bw, u8 *new_iw) 172 { 173 uint64_t sum_bw = 0, sum_iw = 0; 174 uint64_t scaling_factor = 1, iw_gcd = 1; 175 unsigned int i = 0; 176 177 /* Recalculate the bandwidth distribution given the new info */ 178 for (i = 0; i < nr_node_ids; i++) 179 sum_bw += bw[i]; 180 181 /* If node is not set or has < 1% of total bw, use minimum value of 1 */ 182 for (i = 0; i < nr_node_ids; i++) { 183 if (bw[i]) { 184 scaling_factor = 100 * bw[i]; 185 new_iw[i] = max(scaling_factor / sum_bw, 1); 186 } else { 187 new_iw[i] = 1; 188 } 189 sum_iw += new_iw[i]; 190 } 191 192 /* 193 * Scale each node's share of the total bandwidth from percentages 194 * to whole numbers in the range [1, weightiness] 195 */ 196 for (i = 0; i < nr_node_ids; i++) { 197 scaling_factor = weightiness * new_iw[i]; 198 new_iw[i] = max(scaling_factor / sum_iw, 1); 199 if (i == 0) 200 iw_gcd = new_iw[0]; 201 iw_gcd = gcd(iw_gcd, new_iw[i]); 202 } 203 204 /* 1:2 is strictly better than 16:32. Reduce by the weights' GCD. */ 205 for (i = 0; i < nr_node_ids; i++) 206 new_iw[i] /= iw_gcd; > 207 } 208 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
