tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 8433c776e1eb1371f5cd40b5fd3a61f9c7b7f3ad commit: a2d6e9c1a867bb9f13943cb8483e2ab85b630bcd [5933/6583] mm: page_ext: add an iteration API for page extensions config: i386-buildonly-randconfig-001-20250226 (https://download.01.org/0day-ci/archive/20250226/202502261825.F56aq7iS-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250226/202502261825.F56aq7iS-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/202502261825.F56aq7iS-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from arch/x86/include/asm/page.h:89, from arch/x86/include/asm/thread_info.h:12, from include/linux/thread_info.h:60, from include/linux/spinlock.h:60, from include/linux/swait.h:7, from include/linux/completion.h:12, from include/linux/crypto.h:15, from arch/x86/kernel/asm-offsets.c:9: include/linux/page_ext.h: In function 'page_ext_iter_begin': >> include/asm-generic/memory_model.h:47:21: error: implicit declaration of function 'page_to_section'; did you mean 'present_section'? [-Werror=implicit-function-declaration] 47 | int __sec = page_to_section(__pg); \ | ^~~~~~~~~~~~~~~ include/asm-generic/memory_model.h:64:21: note: in expansion of macro '__page_to_pfn' 64 | #define page_to_pfn __page_to_pfn | ^~~~~~~~~~~~~ include/linux/page_ext.h:131:27: note: in expansion of macro 'page_to_pfn' 131 | iter->start_pfn = page_to_pfn(page); | ^~~~~~~~~~~ In file included from include/linux/memcontrol.h:21, from include/linux/swap.h:9, from include/linux/suspend.h:5, from arch/x86/kernel/asm-offsets.c:14: include/linux/mm.h: At top level: >> include/linux/mm.h:1965:29: error: conflicting types for 'page_to_section'; have 'long unsigned int(const struct page *)' 1965 | static inline unsigned long page_to_section(const struct page *page) | ^~~~~~~~~~~~~~~ include/asm-generic/memory_model.h:47:21: note: previous implicit declaration of 'page_to_section' with type 'int()' 47 | int __sec = page_to_section(__pg); \ | ^~~~~~~~~~~~~~~ include/asm-generic/memory_model.h:64:21: note: in expansion of macro '__page_to_pfn' 64 | #define page_to_pfn __page_to_pfn | ^~~~~~~~~~~~~ include/linux/page_ext.h:131:27: note: in expansion of macro 'page_to_pfn' 131 | iter->start_pfn = page_to_pfn(page); | ^~~~~~~~~~~ cc1: some warnings being treated as errors make[3]: *** [scripts/Makefile.build:102: arch/x86/kernel/asm-offsets.s] Error 1 shuffle=1418848070 make[3]: Target 'prepare' not remade because of errors. make[2]: *** [Makefile:1264: prepare0] Error 2 shuffle=1418848070 make[2]: Target 'prepare' not remade because of errors. make[1]: *** [Makefile:251: __sub-make] Error 2 shuffle=1418848070 make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:251: __sub-make] Error 2 shuffle=1418848070 make: Target 'prepare' not remade because of errors. vim +47 include/asm-generic/memory_model.h 8f6aac419bd590 Christoph Lameter 2007-10-16 39 a117e66ed45ac0 KAMEZAWA Hiroyuki 2006-03-27 40 #elif defined(CONFIG_SPARSEMEM) a117e66ed45ac0 KAMEZAWA Hiroyuki 2006-03-27 41 /* 1a49123b343461 Zhang Yanfei 2013-10-03 42 * Note: section's mem_map is encoded to reflect its start_pfn. a117e66ed45ac0 KAMEZAWA Hiroyuki 2006-03-27 43 * section[i].section_mem_map == mem_map's address - start_pfn; a117e66ed45ac0 KAMEZAWA Hiroyuki 2006-03-27 44 */ 67de648211fa04 Andy Whitcroft 2006-06-23 45 #define __page_to_pfn(pg) \ aa462abe8aaf21 Ian Campbell 2011-08-17 46 ({ const struct page *__pg = (pg); \ a117e66ed45ac0 KAMEZAWA Hiroyuki 2006-03-27 @47 int __sec = page_to_section(__pg); \ f05b6284ee5d3b Randy Dunlap 2007-02-10 48 (unsigned long)(__pg - __section_mem_map_addr(__nr_to_section(__sec))); \ a117e66ed45ac0 KAMEZAWA Hiroyuki 2006-03-27 49 }) a117e66ed45ac0 KAMEZAWA Hiroyuki 2006-03-27 50 :::::: The code at line 47 was first introduced by commit :::::: a117e66ed45ac0569c039ea60bd7a9a61e031858 [PATCH] unify pfn_to_page: generic functions :::::: TO: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> :::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
