[kbuild-all] Re: [PATCH v3 3/3] mm/hwpoison: fix unpoison_memory()

Hi Naoya, I love your patch! Yet something to improve: [auto build test ERROR on hnaz-mm/master] url: https://github.com/0day-ci/linux/commits/Naoya-Horiguchi/mm-hwpoison-fix-... base: https://github.com/hnaz/linux-mm master config: i386-allyesconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/0day-ci/linux/commit/1b78bd027ee061f9378cf47687f9f4649... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Naoya-Horiguchi/mm-hwpoison-fix-unpoison_memory/20211105-135311 git checkout 1b78bd027ee061f9378cf47687f9f4649a160fa4 # save the attached .config to linux build tree make W=1 ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): In file included from include/linux/mmzone.h:22, from include/linux/gfp.h:6, from include/linux/mm.h:10, from mm/memory-failure.c:37: mm/memory-failure.c: In function 'SetPageHWPoisonTakenOff': 525 | #define MAGIC_HWPOISON 0x4857504f49534f4e | ^~~~~~~~~~~~~~~~~~ mm/memory-failure.c:1170:25: note: in expansion of macro 'MAGIC_HWPOISON' 1170 | set_page_private(page, MAGIC_HWPOISON); | ^~~~~~~~~~~~~~ cc1: all warnings being treated as errors vim +525 include/linux/page-flags.h 520 521 #ifdef CONFIG_MEMORY_FAILURE 522 PAGEFLAG(HWPoison, hwpoison, PF_ANY) 523 TESTSCFLAG(HWPoison, hwpoison, PF_ANY) 524 #define __PG_HWPOISON (1UL << PG_hwpoison) 526 extern void SetPageHWPoisonTakenOff(struct page *page); 527 extern void ClearPageHWPoisonTakenOff(struct page *page); 528 extern bool take_page_off_buddy(struct page *page); 529 extern bool put_page_back_buddy(struct page *page); 530 #else 531 PAGEFLAG_FALSE(HWPoison, hwpoison) 532 #define __PG_HWPOISON 0 533 #endif 534 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org