tree:   git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   e8e9cc31b0769f2152a6825560e4005b84b2c768
commit: 65525488fa86cda44fb6870f29e9859c974700cd [3983/4215] proc: add kpageidle file
config: openrisc-allyesconfig (attached as .config)
reproduce:
  wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
  chmod +x ~/bin/make.cross
  git checkout 65525488fa86cda44fb6870f29e9859c974700cd
  # save the attached .config to linux build tree
  make.cross ARCH=openrisc 

All error/warnings (new ones prefixed by >>):

   fs/proc/page.c: In function 'kpageidle_clear_pte_refs_one':
>> fs/proc/page.c:332:4: error: implicit declaration of function 'pmdp_clear_young_notify'
>> fs/proc/page.c:338:4: error: implicit declaration of function 'ptep_clear_young_notify'

vim +/pmdp_clear_young_notify +332 fs/proc/page.c

   326		bool referenced = false;
   327	
   328		if (unlikely(PageTransHuge(page))) {
   329			pmd = page_check_address_pmd(page, mm, addr,
   330						     PAGE_CHECK_ADDRESS_PMD_FLAG, &ptl);
   331			if (pmd) {
 > 332				referenced = pmdp_clear_young_notify(vma, addr, pmd);
   333				spin_unlock(ptl);
   334			}
   335		} else {
   336			pte = page_check_address(page, mm, addr, &ptl, 0);
   337			if (pte) {
 > 338				referenced = ptep_clear_young_notify(vma, addr, pte);
   339				pte_unmap_unlock(pte, ptl);
   340			}
   341		}

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0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation