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-a011 (https://download.01.org/0day-ci/archive/20220708/202207082141.4CIiKu3c-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-3) 11.3.0 reproduce (this is a W=1 build): # 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 make 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'; have 'void(long unsigned int *, unsigned int, unsigned int)' 351 | void __bitmap_set(unsigned long *map, unsigned int start, unsigned int len) | ^~~~~~~~~~~~ In file included from lib/bitmap.c:7: include/linux/bitmap.h:167:6: note: previous declaration of '__bitmap_set' with type 'void(long unsigned int *, unsigned int, int)' 167 | void __bitmap_set(unsigned long *map, unsigned int start, int len); | ^~~~~~~~~~~~ In file included from include/linux/linkage.h:7, from include/linux/printk.h:8, from include/asm-generic/bug.h:22, from arch/x86/include/asm/bug.h:87, from include/linux/bug.h:5, from include/linux/jump_label.h:257, from arch/x86/include/asm/string_64.h:6, from arch/x86/include/asm/string.h:5, from include/linux/string.h:20, from include/linux/bitmap.h:11, from lib/bitmap.c:7: lib/bitmap.c:370:15: error: conflicting types for '__bitmap_set'; have 'void(long unsigned int *, unsigned int, unsigned int)' 370 | EXPORT_SYMBOL(__bitmap_set); | ^~~~~~~~~~~~ include/linux/export.h:87:28: note: in definition of macro '___EXPORT_SYMBOL' 87 | extern typeof(sym) sym; \ | ^~~ include/linux/export.h:147:41: note: in expansion of macro '__EXPORT_SYMBOL' 147 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "") | ^~~~~~~~~~~~~~~ include/linux/export.h:150:41: note: in expansion of macro '_EXPORT_SYMBOL' 150 | #define EXPORT_SYMBOL(sym) _EXPORT_SYMBOL(sym, "") | ^~~~~~~~~~~~~~ lib/bitmap.c:370:1: note: in expansion of macro 'EXPORT_SYMBOL' 370 | EXPORT_SYMBOL(__bitmap_set); | ^~~~~~~~~~~~~ In file included from lib/bitmap.c:7: include/linux/bitmap.h:167:6: note: previous declaration of '__bitmap_set' with type 'void(long unsigned int *, unsigned int, int)' 167 | void __bitmap_set(unsigned long *map, unsigned int start, int len); | ^~~~~~~~~~~~ vim +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
