tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: f2528c29385819a84480cacef4886b049761e2c5 commit: aaa4ab5ec04480fd0c16c7452d28444c862b2b87 [8187/8914] lib/bitmap: Make length parameter `len` unsigned config: x86_64-randconfig-a016 (https://download.01.org/0day-ci/archive/20220708/202207082141.JR9ENDa5-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 562c3467a6738aa89203f72fc1d1343e5baadf3c) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=aaa4ab5ec04480fd0c16c7452d28444c862b2b87 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout aaa4ab5ec04480fd0c16c7452d28444c862b2b87 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> Note: the linux-next/master HEAD f2528c29385819a84480cacef4886b049761e2c5 builds fine. It may have been fixed somewhere. All errors (new ones prefixed by >>): >> lib/bitmap.c:351:6: error: conflicting types for '__bitmap_set' void __bitmap_set(unsigned long *map, unsigned int start, unsigned int len) ^ include/linux/bitmap.h:167:6: note: previous declaration is here void __bitmap_set(unsigned long *map, unsigned int start, int len); ^ 1 error generated. vim +/__bitmap_set +351 lib/bitmap.c 350 > 351 void __bitmap_set(unsigned long *map, unsigned int start, unsigned int len) 352 { 353 unsigned long *p = map + BIT_WORD(start); 354 const unsigned int size = start + len; 355 int bits_to_set = BITS_PER_LONG - (start % BITS_PER_LONG); 356 unsigned long mask_to_set = BITMAP_FIRST_WORD_MASK(start); 357 358 while (len >= bits_to_set) { 359 *p |= mask_to_set; 360 len -= bits_to_set; 361 bits_to_set = BITS_PER_LONG; 362 mask_to_set = ~0UL; 363 p++; 364 } 365 if (len) { 366 mask_to_set &= BITMAP_LAST_WORD_MASK(size); 367 *p |= mask_to_set; 368 } 369 } 370 EXPORT_SYMBOL(__bitmap_set); 371 -- 0-DAY CI Kernel Test Service https://01.org/lkp
